diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-05-15 05:42:24 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-05-15 05:42:24 +0300 |
| commit | 1b294a1f35616977caddaddf3e9d28e576a1adbc (patch) | |
| tree | 723a406740083006b8f8724b5c5e532d4efa431d /tools/testing/selftests/bpf | |
| parent | b850dc206a57ae272c639e31ac202ec0c2f46960 (diff) | |
| parent | 654de42f3fc6edc29d743c1dbcd1424f7793f63d (diff) | |
| download | linux-1b294a1f35616977caddaddf3e9d28e576a1adbc.tar.xz | |
Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Complete rework of garbage collection of AF_UNIX sockets.
AF_UNIX is prone to forming reference count cycles due to fd
passing functionality. New method based on Tarjan's Strongly
Connected Components algorithm should be both faster and remove a
lot of workarounds we accumulated over the years.
- Add TCP fraglist GRO support, allowing chaining multiple TCP
packets and forwarding them together. Useful for small switches /
routers which lack basic checksum offload in some scenarios (e.g.
PPPoE).
- Support using SMP threads for handling packet backlog i.e. packet
processing from software interfaces and old drivers which don't use
NAPI. This helps move the processing out of the softirq jumble.
- Continue work of converting from rtnl lock to RCU protection.
Don't require rtnl lock when reading: IPv6 routing FIB, IPv6
address labels, netdev threaded NAPI sysfs files, bonding driver's
sysfs files, MPLS devconf, IPv4 FIB rules, netns IDs, tcp metrics,
TC Qdiscs, neighbor entries, ARP entries via ioctl(SIOCGARP), a lot
of the link information available via rtnetlink.
- Small optimizations from Eric to UDP wake up handling, memory
accounting, RPS/RFS implementation, TCP packet sizing etc.
- Allow direct page recycling in the bulk API used by XDP, for +2%
PPS.
- Support peek with an offset on TCP sockets.
- Add MPTCP APIs for querying last time packets were received/sent/acked
and whether MPTCP "upgrade" succeeded on a TCP socket.
- Add intra-node communication shortcut to improve SMC performance.
- Add IPv6 (and IPv{4,6}-over-IPv{4,6}) support to the GTP protocol
driver.
- Add HSR-SAN (RedBOX) mode of operation to the HSR protocol driver.
- Add reset reasons for tracing what caused a TCP reset to be sent.
- Introduce direction attribute for xfrm (IPSec) states. State can be
used either for input or output packet processing.
Things we sprinkled into general kernel code:
- Add bitmap_{read,write}(), bitmap_size(), expose BYTES_TO_BITS().
This required touch-ups and renaming of a few existing users.
- Add Endian-dependent __counted_by_{le,be} annotations.
- Make building selftests "quieter" by printing summaries like
"CC object.o" rather than full commands with all the arguments.
Netfilter:
- Use GFP_KERNEL to clone elements, to deal better with OOM
situations and avoid failures in the .commit step.
BPF:
- Add eBPF JIT for ARCv2 CPUs.
- Support attaching kprobe BPF programs through kprobe_multi link in
a session mode, meaning, a BPF program is attached to both function
entry and return, the entry program can decide if the return
program gets executed and the entry program can share u64 cookie
value with return program. "Session mode" is a common use-case for
tetragon and bpftrace.
- Add the ability to specify and retrieve BPF cookie for raw
tracepoint programs in order to ease migration from classic to raw
tracepoints.
- Add an internal-only BPF per-CPU instruction for resolving per-CPU
memory addresses and implement support in x86, ARM64 and RISC-V
JITs. This allows inlining functions which need to access per-CPU
state.
- Optimize x86 BPF JIT's emit_mov_imm64, and add support for various
atomics in bpf_arena which can be JITed as a single x86
instruction. Support BPF arena on ARM64.
- Add a new bpf_wq API for deferring events and refactor
process-context bpf_timer code to keep common code where possible.
- Harden the BPF verifier's and/or/xor value tracking.
- Introduce crypto kfuncs to let BPF programs call kernel crypto
APIs.
- Support bpf_tail_call_static() helper for BPF programs with GCC 13.
- Add bpf_preempt_{disable,enable}() kfuncs in order to allow a BPF
program to have code sections where preemption is disabled.
Driver API:
- Skip software TC processing completely if all installed rules are
marked as HW-only, instead of checking the HW-only flag rule by
rule.
- Add support for configuring PoE (Power over Ethernet), similar to
the already existing support for PoDL (Power over Data Line)
config.
- Initial bits of a queue control API, for now allowing a single
queue to be reset without disturbing packet flow to other queues.
- Common (ethtool) statistics for hardware timestamping.
Tests and tooling:
- Remove the need to create a config file to run the net forwarding
tests so that a naive "make run_tests" can exercise them.
- Define a method of writing tests which require an external endpoint
to communicate with (to send/receive data towards the test
machine). Add a few such tests.
- Create a shared code library for writing Python tests. Expose the
YAML Netlink library from tools/ to the tests for easy Netlink
access.
- Move netfilter tests under net/, extend them, separate performance
tests from correctness tests, and iron out issues found by running
them "on every commit".
- Refactor BPF selftests to use common network helpers.
- Further work filling in YAML definitions of Netlink messages for:
nftables, team driver, bonding interfaces, vlan interfaces, VF
info, TC u32 mark, TC police action.
- Teach Python YAML Netlink to decode attribute policies.
- Extend the definition of the "indexed array" construct in the specs
to cover arrays of scalars rather than just nests.
- Add hyperlinks between definitions in generated Netlink docs.
Drivers:
- Make sure unsupported flower control flags are rejected by drivers,
and make more drivers report errors directly to the application
rather than dmesg (large number of driver changes from Asbjørn
Sloth Tønnesen).
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support multiple RSS contexts and steering traffic to them
- support XDP metadata
- make page pool allocations more NUMA aware
- Intel (100G, ice, idpf):
- extract datapath code common among Intel drivers into a library
- use fewer resources in switchdev by sharing queues with the PF
- add PFCP filter support
- add Ethernet filter support
- use a spinlock instead of HW lock in PTP clock ops
- support 5 layer Tx scheduler topology
- nVidia/Mellanox:
- 800G link modes and 100G SerDes speeds
- per-queue IRQ coalescing configuration
- Marvell Octeon:
- support offloading TC packet mark action
- Ethernet NICs consumer, embedded and virtual:
- stop lying about skb->truesize in USB Ethernet drivers, it
messes up TCP memory calculations
- Google cloud vNIC:
- support changing ring size via ethtool
- support ring reset using the queue control API
- VirtIO net:
- expose flow hash from RSS to XDP
- per-queue statistics
- add selftests
- Synopsys (stmmac):
- support controllers which require an RX clock signal from the
MII bus to perform their hardware initialization
- TI:
- icssg_prueth: support ICSSG-based Ethernet on AM65x SR1.0 devices
- icssg_prueth: add SW TX / RX Coalescing based on hrtimers
- cpsw: minimal XDP support
- Renesas (ravb):
- support describing the MDIO bus
- Realtek (r8169):
- add support for RTL8168M
- Microchip Sparx5:
- matchall and flower actions mirred and redirect
- Ethernet switches:
- nVidia/Mellanox:
- improve events processing performance
- Marvell:
- add support for MV88E6250 family internal PHYs
- Microchip:
- add DCB and DSCP mapping support for KSZ switches
- vsc73xx: convert to PHYLINK
- Realtek:
- rtl8226b/rtl8221b: add C45 instances and SerDes switching
- Many driver changes related to PHYLIB and PHYLINK deprecated API
cleanup
- Ethernet PHYs:
- Add a new driver for Airoha EN8811H 2.5 Gigabit PHY.
- micrel: lan8814: add support for PPS out and external timestamp trigger
- WiFi:
- Disable Wireless Extensions (WEXT) in all Wi-Fi 7 devices
drivers. Modern devices can only be configured using nl80211.
- mac80211/cfg80211
- handle color change per link for WiFi 7 Multi-Link Operation
- Intel (iwlwifi):
- don't support puncturing in 5 GHz
- support monitor mode on passive channels
- BZ-W device support
- P2P with HE/EHT support
- re-add support for firmware API 90
- provide channel survey information for Automatic Channel Selection
- MediaTek (mt76):
- mt7921 LED control
- mt7925 EHT radiotap support
- mt7920e PCI support
- Qualcomm (ath11k):
- P2P support for QCA6390, WCN6855 and QCA2066
- support hibernation
- ieee80211-freq-limit Device Tree property support
- Qualcomm (ath12k):
- refactoring in preparation of multi-link support
- suspend and hibernation support
- ACPI support
- debugfs support, including dfs_simulate_radar support
- RealTek:
- rtw88: RTL8723CS SDIO device support
- rtw89: RTL8922AE Wi-Fi 7 PCI device support
- rtw89: complete features of new WiFi 7 chip 8922AE including
BT-coexistence and Wake-on-WLAN
- rtw89: use BIOS ACPI settings to set TX power and channels
- rtl8xxxu: enable Management Frame Protection (MFP) support
- Bluetooth:
- support for Intel BlazarI and Filmore Peak2 (BE201)
- support for MediaTek MT7921S SDIO
- initial support for Intel PCIe BT driver
- remove HCI_AMP support"
* tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1827 commits)
selftests: netfilter: fix packetdrill conntrack testcase
net: gro: fix napi_gro_cb zeroed alignment
Bluetooth: btintel_pcie: Refactor and code cleanup
Bluetooth: btintel_pcie: Fix warning reported by sparse
Bluetooth: hci_core: Fix not handling hdev->le_num_of_adv_sets=1
Bluetooth: btintel: Fix compiler warning for multi_v7_defconfig config
Bluetooth: btintel_pcie: Fix compiler warnings
Bluetooth: btintel_pcie: Add *setup* function to download firmware
Bluetooth: btintel_pcie: Add support for PCIe transport
Bluetooth: btintel: Export few static functions
Bluetooth: HCI: Remove HCI_AMP support
Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()
Bluetooth: qca: Fix error code in qca_read_fw_build_info()
Bluetooth: hci_conn: Use __counted_by() and avoid -Wfamnae warning
Bluetooth: btintel: Add support for Filmore Peak2 (BE201)
Bluetooth: btintel: Add support for BlazarI
LE Create Connection command timeout increased to 20 secs
dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth
Bluetooth: compute LE flow credits based on recvbuf space
Bluetooth: hci_sync: Use cmd->num_cis instead of magic number
...
Diffstat (limited to 'tools/testing/selftests/bpf')
160 files changed, 8514 insertions, 4513 deletions
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore index f1aebabfb017..5025401323af 100644 --- a/tools/testing/selftests/bpf/.gitignore +++ b/tools/testing/selftests/bpf/.gitignore @@ -17,7 +17,6 @@ test_dev_cgroup test_verifier_log feature test_sock -test_sock_addr urandom_read test_sockmap test_lirc_mode2_user diff --git a/tools/testing/selftests/bpf/DENYLIST.aarch64 b/tools/testing/selftests/bpf/DENYLIST.aarch64 index d8ade15e2789..0445ac38bc07 100644 --- a/tools/testing/selftests/bpf/DENYLIST.aarch64 +++ b/tools/testing/selftests/bpf/DENYLIST.aarch64 @@ -10,5 +10,3 @@ fill_link_info/kprobe_multi_link_info # bpf_program__attach_kprobe_mu fill_link_info/kretprobe_multi_link_info # bpf_program__attach_kprobe_multi_opts unexpected error: -95 fill_link_info/kprobe_multi_invalid_ubuff # bpf_program__attach_kprobe_multi_opts unexpected error: -95 missed/kprobe_recursion # missed_kprobe_recursion__attach unexpected error: -95 (errno 95) -verifier_arena # JIT does not support arena -arena_htab # JIT does not support arena diff --git a/tools/testing/selftests/bpf/DENYLIST.s390x b/tools/testing/selftests/bpf/DENYLIST.s390x index f4a2f66a683d..c34adf39eeb2 100644 --- a/tools/testing/selftests/bpf/DENYLIST.s390x +++ b/tools/testing/selftests/bpf/DENYLIST.s390x @@ -6,3 +6,4 @@ stacktrace_build_id # compare_map_keys stackid_hmap vs. sta verifier_iterating_callbacks verifier_arena # JIT does not support arena arena_htab # JIT does not support arena +arena_atomics diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 3b9eb40d6343..e0b3887b3d2d 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -53,6 +53,7 @@ progs/syscall.c-CFLAGS := -fno-strict-aliasing progs/test_pkt_md_access.c-CFLAGS := -fno-strict-aliasing progs/test_sk_lookup.c-CFLAGS := -fno-strict-aliasing progs/timer_crash.c-CFLAGS := -fno-strict-aliasing +progs/test_global_func9.c-CFLAGS := -fno-strict-aliasing ifneq ($(LLVM),) # Silence some warnings when compiled with clang @@ -81,11 +82,24 @@ TEST_INST_SUBDIRS += bpf_gcc # The following tests contain C code that, although technically legal, # triggers GCC warnings that cannot be disabled: declaration of # anonymous struct types in function parameter lists. -progs/btf_dump_test_case_bitfields.c-CFLAGS := -Wno-error -progs/btf_dump_test_case_namespacing.c-CFLAGS := -Wno-error -progs/btf_dump_test_case_packing.c-CFLAGS := -Wno-error -progs/btf_dump_test_case_padding.c-CFLAGS := -Wno-error -progs/btf_dump_test_case_syntax.c-CFLAGS := -Wno-error +progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error +progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error +progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error +progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error +progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error + +# The following tests do type-punning, via the __imm_insn macro, from +# `struct bpf_insn' to long and then uses the value. This triggers an +# "is used uninitialized" warning in GCC due to strict-aliasing +# rules. +progs/verifier_ref_tracking.c-bpf_gcc-CFLAGS := -fno-strict-aliasing +progs/verifier_unpriv.c-bpf_gcc-CFLAGS := -fno-strict-aliasing +progs/verifier_cgroup_storage.c-bpf_gcc-CFLAGS := -fno-strict-aliasing +progs/verifier_ld_ind.c-bpf_gcc-CFLAGS := -fno-strict-aliasing +progs/verifier_map_ret_val.c-bpf_gcc-CFLAGS := -fno-strict-aliasing +progs/verifier_spill_fill.c-bpf_gcc-CFLAGS := -fno-strict-aliasing +progs/verifier_subprog_precision.c-bpf_gcc-CFLAGS := -fno-strict-aliasing +progs/verifier_uninit.c-bpf_gcc-CFLAGS := -fno-strict-aliasing endif ifneq ($(CLANG_CPUV4),) @@ -102,8 +116,6 @@ TEST_PROGS := test_kmod.sh \ test_xdp_redirect_multi.sh \ test_xdp_meta.sh \ test_xdp_veth.sh \ - test_offload.py \ - test_sock_addr.sh \ test_tunnel.sh \ test_lwt_seg6local.sh \ test_lirc_mode2.sh \ @@ -128,7 +140,7 @@ TEST_PROGS_EXTENDED := with_addr.sh \ test_xdp_vlan.sh test_bpftool.py # Compile but not part of 'make run_tests' -TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ +TEST_GEN_PROGS_EXTENDED = test_skb_cgroup_id_user \ flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \ xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \ @@ -136,18 +148,7 @@ TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi -# Emit succinct information message describing current building step -# $1 - generic step name (e.g., CC, LINK, etc); -# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor]; -# $3 - target (assumed to be file); only file name will be emitted; -# $4 - optional extra arg, emitted as-is, if provided. -ifeq ($(V),1) -Q = -msg = -else -Q = @ -msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))"; -MAKEFLAGS += --no-print-directory +ifneq ($(V),1) submake_extras := feature_display=0 endif @@ -274,7 +275,7 @@ $(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ - BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf \ + BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \ BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ EXTRA_LDFLAGS='$(SAN_LDFLAGS)' && \ @@ -290,11 +291,11 @@ UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o TRACE_HELPERS := $(OUTPUT)/trace_helpers.o JSON_WRITER := $(OUTPUT)/json_writer.o CAP_HELPERS := $(OUTPUT)/cap_helpers.o +NETWORK_HELPERS := $(OUTPUT)/network_helpers.o $(OUTPUT)/test_dev_cgroup: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(OUTPUT)/test_skb_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS) -$(OUTPUT)/test_sock_addr: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) $(OUTPUT)/get_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) @@ -308,6 +309,7 @@ $(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) $(OUTPUT)/test_maps: $(TESTING_HELPERS) $(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) $(OUTPUT)/xsk.o: $(BPFOBJ) +$(OUTPUT)/test_tcp_check_syncookie_user: $(NETWORK_HELPERS) BPFTOOL ?= $(DEFAULT_BPFTOOL) $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ @@ -442,7 +444,7 @@ endef # Build BPF object using GCC define GCC_BPF_BUILD_RULE $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2) - $(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2 + $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 endef SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c @@ -455,7 +457,7 @@ LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ trace_printk.c trace_vprintk.c map_ptr_kern.c \ core_kern.c core_kern_overflow.c test_ringbuf.c \ - test_ringbuf_map_key.c + test_ringbuf_n.c test_ringbuf_map_key.c # Generate both light skeleton and libbpf skeleton for these LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ @@ -481,7 +483,7 @@ LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(foreach skel,$(LINKED_SKELS),$($(ske # $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. # Parameters: # $1 - test runner base binary name (e.g., test_progs) -# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, gcc-bpf, etc) +# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) define DEFINE_TEST_RUNNER TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 @@ -509,7 +511,7 @@ endef # Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and # set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: # $1 - test runner base binary name (e.g., test_progs) -# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, gcc-bpf, etc) +# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) define DEFINE_TEST_RUNNER_RULES ifeq ($($(TRUNNER_OUTPUT)-dir),) @@ -532,7 +534,8 @@ $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ | $(TRUNNER_OUTPUT) $$(BPFOBJ) $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ $(TRUNNER_BPF_CFLAGS) \ - $$($$<-CFLAGS)) + $$($$<-CFLAGS) \ + $$($$<-$2-CFLAGS)) $(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) @@ -658,7 +661,7 @@ $(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) # Define test_progs-cpuv4 test runner. ifneq ($(CLANG_CPUV4),) TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE -TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) +TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS $(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) endif @@ -695,7 +698,7 @@ $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) # Include find_bit.c to compile xskxceiver. EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c -$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) +$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) $(call msg,BINARY,,$@) $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ @@ -729,6 +732,7 @@ $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tas $(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h $(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h $(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h +$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h $(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) $(OUTPUT)/bench: LDLIBS += -lm $(OUTPUT)/bench: $(OUTPUT)/bench.o \ @@ -748,6 +752,7 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o \ $(OUTPUT)/bench_bpf_hashmap_lookup.o \ $(OUTPUT)/bench_local_storage_create.o \ $(OUTPUT)/bench_htab_mem.o \ + $(OUTPUT)/bench_bpf_crypto.o \ # $(call msg,BINARY,,$@) $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ @@ -759,7 +764,7 @@ $(OUTPUT)/veristat: $(OUTPUT)/veristat.o $(OUTPUT)/uprobe_multi: uprobe_multi.c $(call msg,BINARY,,$@) - $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ + $(Q)$(CC) $(CFLAGS) -O0 $(LDFLAGS) $^ $(LDLIBS) -o $@ EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ prog_tests/tests.h map_tests/tests.h verifier/tests.h \ diff --git a/tools/testing/selftests/bpf/bench.c b/tools/testing/selftests/bpf/bench.c index b2b4c391eb0a..627b74ae041b 100644 --- a/tools/testing/selftests/bpf/bench.c +++ b/tools/testing/selftests/bpf/bench.c @@ -280,6 +280,8 @@ extern struct argp bench_strncmp_argp; extern struct argp bench_hashmap_lookup_argp; extern struct argp bench_local_storage_create_argp; extern struct argp bench_htab_mem_argp; +extern struct argp bench_trigger_batch_argp; +extern struct argp bench_crypto_argp; static const struct argp_child bench_parsers[] = { { &bench_ringbufs_argp, 0, "Ring buffers benchmark", 0 }, @@ -292,6 +294,8 @@ static const struct argp_child bench_parsers[] = { { &bench_hashmap_lookup_argp, 0, "Hashmap lookup benchmark", 0 }, { &bench_local_storage_create_argp, 0, "local-storage-create benchmark", 0 }, { &bench_htab_mem_argp, 0, "hash map memory benchmark", 0 }, + { &bench_trigger_batch_argp, 0, "BPF triggering benchmark", 0 }, + { &bench_crypto_argp, 0, "bpf crypto benchmark", 0 }, {}, }; @@ -491,24 +495,31 @@ extern const struct bench bench_rename_kretprobe; extern const struct bench bench_rename_rawtp; extern const struct bench bench_rename_fentry; extern const struct bench bench_rename_fexit; -extern const struct bench bench_trig_base; -extern const struct bench bench_trig_tp; -extern const struct bench bench_trig_rawtp; + +/* pure counting benchmarks to establish theoretical lmits */ +extern const struct bench bench_trig_usermode_count; +extern const struct bench bench_trig_syscall_count; +extern const struct bench bench_trig_kernel_count; + +/* batched, staying mostly in-kernel benchmarks */ extern const struct bench bench_trig_kprobe; extern const struct bench bench_trig_kretprobe; extern const struct bench bench_trig_kprobe_multi; extern const struct bench bench_trig_kretprobe_multi; extern const struct bench bench_trig_fentry; extern const struct bench bench_trig_fexit; -extern const struct bench bench_trig_fentry_sleep; extern const struct bench bench_trig_fmodret; -extern const struct bench bench_trig_uprobe_base; +extern const struct bench bench_trig_tp; +extern const struct bench bench_trig_rawtp; + +/* uprobe/uretprobe benchmarks */ extern const struct bench bench_trig_uprobe_nop; extern const struct bench bench_trig_uretprobe_nop; extern const struct bench bench_trig_uprobe_push; extern const struct bench bench_trig_uretprobe_push; extern const struct bench bench_trig_uprobe_ret; extern const struct bench bench_trig_uretprobe_ret; + extern const struct bench bench_rb_libbpf; extern const struct bench bench_rb_custom; extern const struct bench bench_pb_libbpf; @@ -529,6 +540,8 @@ extern const struct bench bench_local_storage_tasks_trace; extern const struct bench bench_bpf_hashmap_lookup; extern const struct bench bench_local_storage_create; extern const struct bench bench_htab_mem; +extern const struct bench bench_crypto_encrypt; +extern const struct bench bench_crypto_decrypt; static const struct bench *benchs[] = { &bench_count_global, @@ -539,24 +552,28 @@ static const struct bench *benchs[] = { &bench_rename_rawtp, &bench_rename_fentry, &bench_rename_fexit, - &bench_trig_base, - &bench_trig_tp, - &bench_trig_rawtp, + /* pure counting benchmarks for establishing theoretical limits */ + &bench_trig_usermode_count, + &bench_trig_kernel_count, + &bench_trig_syscall_count, + /* batched, staying mostly in-kernel triggers */ &bench_trig_kprobe, &bench_trig_kretprobe, &bench_trig_kprobe_multi, &bench_trig_kretprobe_multi, &bench_trig_fentry, &bench_trig_fexit, - &bench_trig_fentry_sleep, &bench_trig_fmodret, - &bench_trig_uprobe_base, + &bench_trig_tp, + &bench_trig_rawtp, + /* uprobes */ &bench_trig_uprobe_nop, &bench_trig_uretprobe_nop, &bench_trig_uprobe_push, &bench_trig_uretprobe_push, &bench_trig_uprobe_ret, &bench_trig_uretprobe_ret, + /* ringbuf/perfbuf benchmarks */ &bench_rb_libbpf, &bench_rb_custom, &bench_pb_libbpf, @@ -577,6 +594,8 @@ static const struct bench *benchs[] = { &bench_bpf_hashmap_lookup, &bench_local_storage_create, &bench_htab_mem, + &bench_crypto_encrypt, + &bench_crypto_decrypt, }; static void find_benchmark(void) diff --git a/tools/testing/selftests/bpf/benchs/bench_bpf_crypto.c b/tools/testing/selftests/bpf/benchs/bench_bpf_crypto.c new file mode 100644 index 000000000000..2845edaba8db --- /dev/null +++ b/tools/testing/selftests/bpf/benchs/bench_bpf_crypto.c @@ -0,0 +1,185 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ + +#include <argp.h> +#include "bench.h" +#include "crypto_bench.skel.h" + +#define MAX_CIPHER_LEN 32 +static char *input; +static struct crypto_ctx { + struct crypto_bench *skel; + int pfd; +} ctx; + +static struct crypto_args { + u32 crypto_len; + char *crypto_cipher; +} args = { + .crypto_len = 16, + .crypto_cipher = "ecb(aes)", +}; + +enum { + ARG_CRYPTO_LEN = 5000, + ARG_CRYPTO_CIPHER = 5001, +}; + +static const struct argp_option opts[] = { + { "crypto-len", ARG_CRYPTO_LEN, "CRYPTO_LEN", 0, + "Set the length of crypto buffer" }, + { "crypto-cipher", ARG_CRYPTO_CIPHER, "CRYPTO_CIPHER", 0, + "Set the cipher to use (default:ecb(aes))" }, + {}, +}; + +static error_t crypto_parse_arg(int key, char *arg, struct argp_state *state) +{ + switch (key) { + case ARG_CRYPTO_LEN: + args.crypto_len = strtoul(arg, NULL, 10); + if (!args.crypto_len || + args.crypto_len > sizeof(ctx.skel->bss->dst)) { + fprintf(stderr, "Invalid crypto buffer len (limit %zu)\n", + sizeof(ctx.skel->bss->dst)); + argp_usage(state); + } + break; + case ARG_CRYPTO_CIPHER: + args.crypto_cipher = strdup(arg); + if (!strlen(args.crypto_cipher) || + strlen(args.crypto_cipher) > MAX_CIPHER_LEN) { + fprintf(stderr, "Invalid crypto cipher len (limit %d)\n", + MAX_CIPHER_LEN); + argp_usage(state); + } + break; + default: + return ARGP_ERR_UNKNOWN; + } + + return 0; +} + +const struct argp bench_crypto_argp = { + .options = opts, + .parser = crypto_parse_arg, +}; + +static void crypto_validate(void) +{ + if (env.consumer_cnt != 0) { + fprintf(stderr, "bpf crypto benchmark doesn't support consumer!\n"); + exit(1); + } +} + +static void crypto_setup(void) +{ + LIBBPF_OPTS(bpf_test_run_opts, opts); + + int err, pfd; + size_t i, sz; + + sz = args.crypto_len; + if (!sz || sz > sizeof(ctx.skel->bss->dst)) { + fprintf(stderr, "invalid encrypt buffer size (source %zu, target %zu)\n", + sz, sizeof(ctx.skel->bss->dst)); + exit(1); + } + + setup_libbpf(); + + ctx.skel = crypto_bench__open(); + if (!ctx.skel) { + fprintf(stderr, "failed to open skeleton\n"); + exit(1); + } + + snprintf(ctx.skel->bss->cipher, 128, "%s", args.crypto_cipher); + memcpy(ctx.skel->bss->key, "12345678testtest", 16); + ctx.skel->bss->key_len = 16; + ctx.skel->bss->authsize = 0; + + srandom(time(NULL)); + input = malloc(sz); + for (i = 0; i < sz - 1; i++) + input[i] = '1' + random() % 9; + input[sz - 1] = '\0'; + + ctx.skel->rodata->len = args.crypto_len; + + err = crypto_bench__load(ctx.skel); + if (err) { + fprintf(stderr, "failed to load skeleton\n"); + crypto_bench__destroy(ctx.skel); + exit(1); + } + + pfd = bpf_program__fd(ctx.skel->progs.crypto_setup); + if (pfd < 0) { + fprintf(stderr, "failed to get fd for setup prog\n"); + crypto_bench__destroy(ctx.skel); + exit(1); + } + + err = bpf_prog_test_run_opts(pfd, &opts); + if (err || ctx.skel->bss->status) { + fprintf(stderr, "failed to run setup prog: err %d, status %d\n", + err, ctx.skel->bss->status); + crypto_bench__destroy(ctx.skel); + exit(1); + } +} + +static void crypto_encrypt_setup(void) +{ + crypto_setup(); + ctx.pfd = bpf_program__fd(ctx.skel->progs.crypto_encrypt); +} + +static void crypto_decrypt_setup(void) +{ + crypto_setup(); + ctx.pfd = bpf_program__fd(ctx.skel->progs.crypto_decrypt); +} + +static void crypto_measure(struct bench_res *res) +{ + res->hits = atomic_swap(&ctx.skel->bss->hits, 0); +} + +static void *crypto_producer(void *unused) +{ + LIBBPF_OPTS(bpf_test_run_opts, opts, + .repeat = 64, + .data_in = input, + .data_size_in = args.crypto_len, + ); + + while (true) + (void)bpf_prog_test_run_opts(ctx.pfd, &opts); + return NULL; +} + +const struct bench bench_crypto_encrypt = { + .name = "crypto-encrypt", + .argp = &bench_crypto_argp, + .validate = crypto_validate, + .setup = crypto_encrypt_setup, + .producer_thread = crypto_producer, + .measure = crypto_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; + +const struct bench bench_crypto_decrypt = { + .name = "crypto-decrypt", + .argp = &bench_crypto_argp, + .validate = crypto_validate, + .setup = crypto_decrypt_setup, + .producer_thread = crypto_producer, + .measure = crypto_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; diff --git a/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c b/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c index b36de42ee4d9..e2ff8ea1cb79 100644 --- a/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c +++ b/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c @@ -186,7 +186,7 @@ static void *task_producer(void *input) for (i = 0; i < batch_sz; i++) { if (!pthd_results[i]) - pthread_join(pthds[i], NULL);; + pthread_join(pthds[i], NULL); } } diff --git a/tools/testing/selftests/bpf/benchs/bench_trigger.c b/tools/testing/selftests/bpf/benchs/bench_trigger.c index ace0d1011a8e..4b05539f167d 100644 --- a/tools/testing/selftests/bpf/benchs/bench_trigger.c +++ b/tools/testing/selftests/bpf/benchs/bench_trigger.c @@ -1,15 +1,95 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2020 Facebook */ +#define _GNU_SOURCE +#include <argp.h> +#include <unistd.h> +#include <stdint.h> #include "bench.h" #include "trigger_bench.skel.h" #include "trace_helpers.h" +#define MAX_TRIG_BATCH_ITERS 1000 + +static struct { + __u32 batch_iters; +} args = { + .batch_iters = 100, +}; + +enum { + ARG_TRIG_BATCH_ITERS = 7000, +}; + +static const struct argp_option opts[] = { + { "trig-batch-iters", ARG_TRIG_BATCH_ITERS, "BATCH_ITER_CNT", 0, + "Number of in-kernel iterations per one driver test run"}, + {}, +}; + +static error_t parse_arg(int key, char *arg, struct argp_state *state) +{ + long ret; + + switch (key) { + case ARG_TRIG_BATCH_ITERS: + ret = strtol(arg, NULL, 10); + if (ret < 1 || ret > MAX_TRIG_BATCH_ITERS) { + fprintf(stderr, "invalid --trig-batch-iters value (should be between %d and %d)\n", + 1, MAX_TRIG_BATCH_ITERS); + argp_usage(state); + } + args.batch_iters = ret; + break; + default: + return ARGP_ERR_UNKNOWN; + } + + return 0; +} + +const struct argp bench_trigger_batch_argp = { + .options = opts, + .parser = parse_arg, +}; + +/* adjust slot shift in inc_hits() if changing */ +#define MAX_BUCKETS 256 + +#pragma GCC diagnostic ignored "-Wattributes" + /* BPF triggering benchmarks */ static struct trigger_ctx { struct trigger_bench *skel; + bool usermode_counters; + int driver_prog_fd; } ctx; -static struct counter base_hits; +static struct counter base_hits[MAX_BUCKETS]; + +static __always_inline void inc_counter(struct counter *counters) +{ + static __thread int tid = 0; + unsigned slot; + + if (unlikely(tid == 0)) + tid = syscall(SYS_gettid); + + /* multiplicative hashing, it's fast */ + slot = 2654435769U * tid; + slot >>= 24; + + atomic_inc(&base_hits[slot].value); /* use highest byte as an index */ +} + +static long sum_and_reset_counters(struct counter *counters) +{ + int i; + long sum = 0; + + for (i = 0; i < MAX_BUCKETS; i++) + sum += atomic_swap(&counters[i].value, 0); + return sum; +} static void trigger_validate(void) { @@ -19,41 +99,63 @@ static void trigger_validate(void) } } -static void *trigger_base_producer(void *input) +static void *trigger_producer(void *input) { - while (true) { - (void)syscall(__NR_getpgid); - atomic_inc(&base_hits.value); + if (ctx.usermode_counters) { + while (true) { + (void)syscall(__NR_getpgid); + inc_counter(base_hits); + } + } else { + while (true) + (void)syscall(__NR_getpgid); } return NULL; } -static void trigger_base_measure(struct bench_res *res) +static void *trigger_producer_batch(void *input) { - res->hits = atomic_swap(&base_hits.value, 0); -} + int fd = ctx.driver_prog_fd ?: bpf_program__fd(ctx.skel->progs.trigger_driver); -static void *trigger_producer(void *input) -{ while (true) - (void)syscall(__NR_getpgid); + bpf_prog_test_run_opts(fd, NULL); + return NULL; } static void trigger_measure(struct bench_res *res) { - res->hits = atomic_swap(&ctx.skel->bss->hits, 0); + if (ctx.usermode_counters) + res->hits = sum_and_reset_counters(base_hits); + else + res->hits = sum_and_reset_counters(ctx.skel->bss->hits); } static void setup_ctx(void) { setup_libbpf(); - ctx.skel = trigger_bench__open_and_load(); + ctx.skel = trigger_bench__open(); if (!ctx.skel) { fprintf(stderr, "failed to open skeleton\n"); exit(1); } + + /* default "driver" BPF program */ + bpf_program__set_autoload(ctx.skel->progs.trigger_driver, true); + + ctx.skel->rodata->batch_iters = args.batch_iters; +} + +static void load_ctx(void) +{ + int err; + + err = trigger_bench__load(ctx.skel); + if (err) { + fprintf(stderr, "failed to open skeleton\n"); + exit(1); + } } static void attach_bpf(struct bpf_program *prog) @@ -67,64 +169,104 @@ static void attach_bpf(struct bpf_program *prog) } } -static void trigger_tp_setup(void) +static void trigger_syscall_count_setup(void) { - setup_ctx(); - attach_bpf(ctx.skel->progs.bench_trigger_tp); + ctx.usermode_counters = true; } -static void trigger_rawtp_setup(void) +/* Batched, staying mostly in-kernel triggering setups */ +static void trigger_kernel_count_setup(void) { setup_ctx(); - attach_bpf(ctx.skel->progs.bench_trigger_raw_tp); + bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false); + bpf_program__set_autoload(ctx.skel->progs.trigger_count, true); + load_ctx(); + /* override driver program */ + ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_count); } static void trigger_kprobe_setup(void) { setup_ctx(); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_kprobe, true); + load_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_kprobe); } static void trigger_kretprobe_setup(void) { setup_ctx(); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_kretprobe, true); + load_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_kretprobe); } static void trigger_kprobe_multi_setup(void) { setup_ctx(); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_kprobe_multi, true); + load_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_kprobe_multi); } static void trigger_kretprobe_multi_setup(void) { setup_ctx(); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_kretprobe_multi, true); + load_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_kretprobe_multi); } static void trigger_fentry_setup(void) { setup_ctx(); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_fentry, true); + load_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_fentry); } static void trigger_fexit_setup(void) { setup_ctx(); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_fexit, true); + load_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_fexit); } -static void trigger_fentry_sleep_setup(void) +static void trigger_fmodret_setup(void) { setup_ctx(); - attach_bpf(ctx.skel->progs.bench_trigger_fentry_sleep); + bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false); + bpf_program__set_autoload(ctx.skel->progs.trigger_driver_kfunc, true); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_fmodret, true); + load_ctx(); + /* override driver program */ + ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_driver_kfunc); + attach_bpf(ctx.skel->progs.bench_trigger_fmodret); } -static void trigger_fmodret_setup(void) +static void trigger_tp_setup(void) { setup_ctx(); - attach_bpf(ctx.skel->progs.bench_trigger_fmodret); + bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false); + bpf_program__set_autoload(ctx.skel->progs.trigger_driver_kfunc, true); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_tp, true); + load_ctx(); + /* override driver program */ + ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_driver_kfunc); + attach_bpf(ctx.skel->progs.bench_trigger_tp); +} + +static void trigger_rawtp_setup(void) +{ + setup_ctx(); + bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false); + bpf_program__set_autoload(ctx.skel->progs.trigger_driver_kfunc, true); + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_rawtp, true); + load_ctx(); + /* override driver program */ + ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_driver_kfunc); + attach_bpf(ctx.skel->progs.bench_trigger_rawtp); } /* make sure call is not inlined and not avoided by compiler, so __weak and @@ -137,7 +279,7 @@ static void trigger_fmodret_setup(void) * GCC doesn't generate stack setup preample for these functions due to them * having no input arguments and doing nothing in the body. */ -__weak void uprobe_target_nop(void) +__nocf_check __weak void uprobe_target_nop(void) { asm volatile ("nop"); } @@ -146,7 +288,7 @@ __weak void opaque_noop_func(void) { } -__weak int uprobe_target_push(void) +__nocf_check __weak int uprobe_target_push(void) { /* overhead of function call is negligible compared to uprobe * triggering, so this shouldn't affect benchmark results much @@ -155,16 +297,16 @@ __weak int uprobe_target_push(void) return 1; } -__weak void uprobe_target_ret(void) +__nocf_check __weak void uprobe_target_ret(void) { asm volatile (""); } -static void *uprobe_base_producer(void *input) +static void *uprobe_producer_count(void *input) { while (true) { uprobe_target_nop(); - atomic_inc(&base_hits.value); + inc_counter(base_hits); } return NULL; } @@ -194,15 +336,24 @@ static void usetup(bool use_retprobe, void *target_addr) { size_t uprobe_offset; struct bpf_link *link; + int err; setup_libbpf(); - ctx.skel = trigger_bench__open_and_load(); + ctx.skel = trigger_bench__open(); if (!ctx.skel) { fprintf(stderr, "failed to open skeleton\n"); exit(1); } + bpf_program__set_autoload(ctx.skel->progs.bench_trigger_uprobe, true); + + err = trigger_bench__load(ctx.skel); + if (err) { + fprintf(stderr, "failed to load skeleton\n"); + exit(1); + } + uprobe_offset = get_uprobe_offset(target_addr); link = bpf_program__attach_uprobe(ctx.skel->progs.bench_trigger_uprobe, use_retprobe, @@ -216,204 +367,90 @@ static void usetup(bool use_retprobe, void *target_addr) ctx.skel->links.bench_trigger_uprobe = link; } -static void uprobe_setup_nop(void) +static void usermode_count_setup(void) +{ + ctx.usermode_counters = true; +} + +static void uprobe_nop_setup(void) { usetup(false, &uprobe_target_nop); } -static void uretprobe_setup_nop(void) +static void uretprobe_nop_setup(void) { usetup(true, &uprobe_target_nop); } -static void uprobe_setup_push(void) +static void uprobe_push_setup(void) { usetup(false, &uprobe_target_push); } -static void uretprobe_setup_push(void) +static void uretprobe_push_setup(void) { usetup(true, &uprobe_target_push); } -static void uprobe_setup_ret(void) +static void uprobe_ret_setup(void) { usetup(false, &uprobe_target_ret); } -static void uretprobe_setup_ret(void) +static void uretprobe_ret_setup(void) { usetup(true, &uprobe_target_ret); } -const struct bench bench_trig_base = { - .name = "trig-base", +const struct bench bench_trig_syscall_count = { + .name = "trig-syscall-count", .validate = trigger_validate, - .producer_thread = trigger_base_producer, - .measure = trigger_base_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_tp = { - .name = "trig-tp", - .validate = trigger_validate, - .setup = trigger_tp_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_rawtp = { - .name = "trig-rawtp", - .validate = trigger_validate, - .setup = trigger_rawtp_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_kprobe = { - .name = "trig-kprobe", - .validate = trigger_validate, - .setup = trigger_kprobe_setup, + .setup = trigger_syscall_count_setup, .producer_thread = trigger_producer, .measure = trigger_measure, .report_progress = hits_drops_report_progress, .report_final = hits_drops_report_final, }; -const struct bench bench_trig_kretprobe = { - .name = "trig-kretprobe", - .validate = trigger_validate, - .setup = trigger_kretprobe_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_kprobe_multi = { - .name = "trig-kprobe-multi", - .validate = trigger_validate, - .setup = trigger_kprobe_multi_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_kretprobe_multi = { - .name = "trig-kretprobe-multi", - .validate = trigger_validate, - .setup = trigger_kretprobe_multi_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_fentry = { - .name = "trig-fentry", - .validate = trigger_validate, - .setup = trigger_fentry_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_fexit = { - .name = "trig-fexit", - .validate = trigger_validate, - .setup = trigger_fexit_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_fentry_sleep = { - .name = "trig-fentry-sleep", - .validate = trigger_validate, - .setup = trigger_fentry_sleep_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_fmodret = { - .name = "trig-fmodret", - .validate = trigger_validate, - .setup = trigger_fmodret_setup, - .producer_thread = trigger_producer, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_uprobe_base = { - .name = "trig-uprobe-base", - .setup = NULL, /* no uprobe/uretprobe is attached */ - .producer_thread = uprobe_base_producer, - .measure = trigger_base_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_uprobe_nop = { - .name = "trig-uprobe-nop", - .setup = uprobe_setup_nop, - .producer_thread = uprobe_producer_nop, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_uretprobe_nop = { - .name = "trig-uretprobe-nop", - .setup = uretprobe_setup_nop, - .producer_thread = uprobe_producer_nop, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_uprobe_push = { - .name = "trig-uprobe-push", - .setup = uprobe_setup_push, - .producer_thread = uprobe_producer_push, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_uretprobe_push = { - .name = "trig-uretprobe-push", - .setup = uretprobe_setup_push, - .producer_thread = uprobe_producer_push, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_uprobe_ret = { - .name = "trig-uprobe-ret", - .setup = uprobe_setup_ret, - .producer_thread = uprobe_producer_ret, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; - -const struct bench bench_trig_uretprobe_ret = { - .name = "trig-uretprobe-ret", - .setup = uretprobe_setup_ret, - .producer_thread = uprobe_producer_ret, - .measure = trigger_measure, - .report_progress = hits_drops_report_progress, - .report_final = hits_drops_report_final, -}; +/* batched (staying mostly in kernel) kprobe/fentry benchmarks */ +#define BENCH_TRIG_KERNEL(KIND, NAME) \ +const struct bench bench_trig_##KIND = { \ + .name = "trig-" NAME, \ + .setup = trigger_##KIND##_setup, \ + .producer_thread = trigger_producer_batch, \ + .measure = trigger_measure, \ + .report_progress = hits_drops_report_progress, \ + .report_final = hits_drops_report_final, \ + .argp = &bench_trigger_batch_argp, \ +} + +BENCH_TRIG_KERNEL(kernel_count, "kernel-count"); +BENCH_TRIG_KERNEL(kprobe, "kprobe"); +BENCH_TRIG_KERNEL(kretprobe, "kretprobe"); +BENCH_TRIG_KERNEL(kprobe_multi, "kprobe-multi"); +BENCH_TRIG_KERNEL(kretprobe_multi, "kretprobe-multi"); +BENCH_TRIG_KERNEL(fentry, "fentry"); +BENCH_TRIG_KERNEL(fexit, "fexit"); +BENCH_TRIG_KERNEL(fmodret, "fmodret"); +BENCH_TRIG_KERNEL(tp, "tp"); +BENCH_TRIG_KERNEL(rawtp, "rawtp"); + +/* uprobe benchmarks */ +#define BENCH_TRIG_USERMODE(KIND, PRODUCER, NAME) \ +const struct bench bench_trig_##KIND = { \ + .name = "trig-" NAME, \ + .validate = trigger_validate, \ + .setup = KIND##_setup, \ + .producer_thread = uprobe_producer_##PRODUCER, \ + .measure = trigger_measure, \ + .report_progress = hits_drops_report_progress, \ + .report_final = hits_drops_report_final, \ +} + +BENCH_TRIG_USERMODE(usermode_count, count, "usermode-count"); +BENCH_TRIG_USERMODE(uprobe_nop, nop, "uprobe-nop"); +BENCH_TRIG_USERMODE(uprobe_push, push, "uprobe-push"); +BENCH_TRIG_USERMODE(uprobe_ret, ret, "uprobe-ret"); +BENCH_TRIG_USERMODE(uretprobe_nop, nop, "uretprobe-nop"); +BENCH_TRIG_USERMODE(uretprobe_push, push, "uretprobe-push"); +BENCH_TRIG_USERMODE(uretprobe_ret, ret, "uretprobe-ret"); diff --git a/tools/testing/selftests/bpf/benchs/run_bench_trigger.sh b/tools/testing/selftests/bpf/benchs/run_bench_trigger.sh index 78e83f243294..a690f5a68b6b 100755 --- a/tools/testing/selftests/bpf/benchs/run_bench_trigger.sh +++ b/tools/testing/selftests/bpf/benchs/run_bench_trigger.sh @@ -2,8 +2,22 @@ set -eufo pipefail -for i in base tp rawtp kprobe fentry fmodret -do - summary=$(sudo ./bench -w2 -d5 -a trig-$i | tail -n1 | cut -d'(' -f1 | cut -d' ' -f3-) - printf "%-10s: %s\n" $i "$summary" +def_tests=( \ + usermode-count kernel-count syscall-count \ + fentry fexit fmodret \ + rawtp tp \ + kprobe kprobe-multi \ + kretprobe kretprobe-multi \ +) + +tests=("$@") +if [ ${#tests[@]} -eq 0 ]; then + tests=("${def_tests[@]}") +fi + +p=${PROD_CNT:-1} + +for t in "${tests[@]}"; do + summary=$(sudo ./bench -w2 -d5 -a -p$p trig-$t | tail -n1 | cut -d'(' -f1 | cut -d' ' -f3-) + printf "%-15s: %s\n" $t "$summary" done diff --git a/tools/testing/selftests/bpf/benchs/run_bench_uprobes.sh b/tools/testing/selftests/bpf/benchs/run_bench_uprobes.sh index 9bdcc74e03a4..af169f831f2f 100755 --- a/tools/testing/selftests/bpf/benchs/run_bench_uprobes.sh +++ b/tools/testing/selftests/bpf/benchs/run_bench_uprobes.sh @@ -2,7 +2,7 @@ set -eufo pipefail -for i in base {uprobe,uretprobe}-{nop,push,ret} +for i in usermode-count syscall-count {uprobe,uretprobe}-{nop,push,ret} do summary=$(sudo ./bench -w2 -d5 -a trig-$i | tail -n1 | cut -d'(' -f1 | cut -d' ' -f3-) printf "%-15s: %s\n" $i "$summary" diff --git a/tools/testing/selftests/bpf/bpf_arena_list.h b/tools/testing/selftests/bpf/bpf_arena_list.h index b99b9f408eff..85dbc3ea4da5 100644 --- a/tools/testing/selftests/bpf/bpf_arena_list.h +++ b/tools/testing/selftests/bpf/bpf_arena_list.h @@ -29,6 +29,7 @@ static inline void *bpf_iter_num_new(struct bpf_iter_num *it, int i, int j) { re static inline void bpf_iter_num_destroy(struct bpf_iter_num *it) {} static inline bool bpf_iter_num_next(struct bpf_iter_num *it) { return true; } #define cond_break ({}) +#define can_loop true #endif /* Safely walk link list elements. Deletion of elements is allowed. */ @@ -36,8 +37,7 @@ static inline bool bpf_iter_num_next(struct bpf_iter_num *it) { return true; } for (void * ___tmp = (pos = list_entry_safe((head)->first, \ typeof(*(pos)), member), \ (void *)0); \ - pos && ({ ___tmp = (void *)pos->member.next; 1; }); \ - cond_break, \ + pos && ({ ___tmp = (void *)pos->member.next; 1; }) && can_loop; \ pos = list_entry_safe((void __arena *)___tmp, typeof(*(pos)), member)) static inline void list_add_head(arena_list_node_t *n, arena_list_head_t *h) diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h index a5b9df38c162..3d9e4b8c6b81 100644 --- a/tools/testing/selftests/bpf/bpf_experimental.h +++ b/tools/testing/selftests/bpf/bpf_experimental.h @@ -326,9 +326,48 @@ l_true: \ }) #endif +/* + * Note that cond_break can only be portably used in the body of a breakable + * construct, whereas can_loop can be used anywhere. + */ +#ifdef __BPF_FEATURE_MAY_GOTO +#define can_loop \ + ({ __label__ l_break, l_continue; \ + bool ret = true; \ + asm volatile goto("may_goto %l[l_break]" \ + :::: l_break); \ + goto l_continue; \ + l_break: ret = false; \ + l_continue:; \ + ret; \ + }) + +#define cond_break \ + ({ __label__ l_break, l_continue; \ + asm volatile goto("may_goto %l[l_break]" \ + :::: l_break); \ + goto l_continue; \ + l_break: break; \ + l_continue:; \ + }) +#else +#define can_loop \ + ({ __label__ l_break, l_continue; \ + bool ret = true; \ + asm volatile goto("1:.byte 0xe5; \ + .byte 0; \ + .long ((%l[l_break] - 1b - 8) / 8) & 0xffff; \ + .short 0" \ + :::: l_break); \ + goto l_continue; \ + l_break: ret = false; \ + l_continue:; \ + ret; \ + }) + #define cond_break \ ({ __label__ l_break, l_continue; \ - asm volatile goto("1:.byte 0xe5; \ + asm volatile goto("1:.byte 0xe5; \ .byte 0; \ .long ((%l[l_break] - 1b - 8) / 8) & 0xffff; \ .short 0" \ @@ -337,6 +376,7 @@ l_true: \ l_break: break; \ l_continue:; \ }) +#endif #ifndef bpf_nop_mov #define bpf_nop_mov(var) \ @@ -386,6 +426,28 @@ l_true: \ , [as]"i"((dst_as << 16) | src_as)); #endif +void bpf_preempt_disable(void) __weak __ksym; +void bpf_preempt_enable(void) __weak __ksym; + +typedef struct { +} __bpf_preempt_t; + +static inline __bpf_preempt_t __bpf_preempt_constructor(void) +{ + __bpf_preempt_t ret = {}; + + bpf_preempt_disable(); + return ret; +} +static inline void __bpf_preempt_destructor(__bpf_preempt_t *t) +{ + bpf_preempt_enable(); +} +#define bpf_guard_preempt() \ + __bpf_preempt_t ___bpf_apply(preempt, __COUNTER__) \ + __attribute__((__unused__, __cleanup__(__bpf_preempt_destructor))) = \ + __bpf_preempt_constructor() + /* Description * Assert that a conditional expression is true. * Returns @@ -459,4 +521,11 @@ extern int bpf_iter_css_new(struct bpf_iter_css *it, extern struct cgroup_subsys_state *bpf_iter_css_next(struct bpf_iter_css *it) __weak __ksym; extern void bpf_iter_css_destroy(struct bpf_iter_css *it) __weak __ksym; +extern int bpf_wq_init(struct bpf_wq *wq, void *p__map, unsigned int flags) __weak __ksym; +extern int bpf_wq_start(struct bpf_wq *wq, unsigned int flags) __weak __ksym; +extern int bpf_wq_set_callback_impl(struct bpf_wq *wq, + int (callback_fn)(void *map, int *key, struct bpf_wq *wq), + unsigned int flags__k, void *aux__ign) __ksym; +#define bpf_wq_set_callback(timer, cb, flags) \ + bpf_wq_set_callback_impl(timer, cb, flags, NULL) #endif diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h index 14ebe7d9e1a3..be91a6919315 100644 --- a/tools/testing/selftests/bpf/bpf_kfuncs.h +++ b/tools/testing/selftests/bpf/bpf_kfuncs.h @@ -75,4 +75,7 @@ extern void bpf_key_put(struct bpf_key *key) __ksym; extern int bpf_verify_pkcs7_signature(struct bpf_dynptr *data_ptr, struct bpf_dynptr *sig_ptr, struct bpf_key *trusted_keyring) __ksym; + +extern bool bpf_session_is_return(void) __ksym __weak; +extern long *bpf_session_cookie(void) __ksym __weak; #endif diff --git a/tools/testing/selftests/bpf/bpf_tcp_helpers.h b/tools/testing/selftests/bpf/bpf_tcp_helpers.h deleted file mode 100644 index 82a7c9de95f9..000000000000 --- a/tools/testing/selftests/bpf/bpf_tcp_helpers.h +++ /dev/null @@ -1,241 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __BPF_TCP_HELPERS_H -#define __BPF_TCP_HELPERS_H - -#include <stdbool.h> -#include <linux/types.h> -#include <bpf/bpf_helpers.h> -#include <bpf/bpf_core_read.h> -#include <bpf/bpf_tracing.h> - -#define BPF_STRUCT_OPS(name, args...) \ -SEC("struct_ops/"#name) \ -BPF_PROG(name, args) - -#ifndef SOL_TCP -#define SOL_TCP 6 -#endif - -#ifndef TCP_CA_NAME_MAX -#define TCP_CA_NAME_MAX 16 -#endif - -#define tcp_jiffies32 ((__u32)bpf_jiffies64()) - -struct sock_common { - unsigned char skc_state; - __u16 skc_num; -} __attribute__((preserve_access_index)); - -enum sk_pacing { - SK_PACING_NONE = 0, - SK_PACING_NEEDED = 1, - SK_PACING_FQ = 2, -}; - -struct sock { - struct sock_common __sk_common; -#define sk_state __sk_common.skc_state - unsigned long sk_pacing_rate; - __u32 sk_pacing_status; /* see enum sk_pacing */ -} __attribute__((preserve_access_index)); - -struct inet_sock { - struct sock sk; -} __attribute__((preserve_access_index)); - -struct inet_connection_sock { - struct inet_sock icsk_inet; - __u8 icsk_ca_state:6, - icsk_ca_setsockopt:1, - icsk_ca_dst_locked:1; - struct { - __u8 pending; - } icsk_ack; - __u64 icsk_ca_priv[104 / sizeof(__u64)]; -} __attribute__((preserve_access_index)); - -struct request_sock { - struct sock_common __req_common; -} __attribute__((preserve_access_index)); - -struct tcp_sock { - struct inet_connection_sock inet_conn; - - __u32 rcv_nxt; - __u32 snd_nxt; - __u32 snd_una; - __u32 window_clamp; - __u8 ecn_flags; - __u32 delivered; - __u32 delivered_ce; - __u32 snd_cwnd; - __u32 snd_cwnd_cnt; - __u32 snd_cwnd_clamp; - __u32 snd_ssthresh; - __u8 syn_data:1, /* SYN includes data */ - syn_fastopen:1, /* SYN includes Fast Open option */ - syn_fastopen_exp:1,/* SYN includes Fast Open exp. option */ - syn_fastopen_ch:1, /* Active TFO re-enabling probe */ - syn_data_acked:1,/* data in SYN is acked by SYN-ACK */ - save_syn:1, /* Save headers of SYN packet */ - is_cwnd_limited:1,/* forward progress limited by snd_cwnd? */ - syn_smc:1; /* SYN includes SMC */ - __u32 max_packets_out; - __u32 lsndtime; - __u32 prior_cwnd; - __u64 tcp_mstamp; /* most recent packet received/sent */ - bool is_mptcp; -} __attribute__((preserve_access_index)); - -static __always_inline struct inet_connection_sock *inet_csk(const struct sock *sk) -{ - return (struct inet_connection_sock *)sk; -} - -static __always_inline void *inet_csk_ca(const struct sock *sk) -{ - return (void *)inet_csk(sk)->icsk_ca_priv; -} - -static __always_inline struct tcp_sock *tcp_sk(const struct sock *sk) -{ - return (struct tcp_sock *)sk; -} - -static __always_inline bool before(__u32 seq1, __u32 seq2) -{ - return (__s32)(seq1-seq2) < 0; -} -#define after(seq2, seq1) before(seq1, seq2) - -#define TCP_ECN_OK 1 -#define TCP_ECN_QUEUE_CWR 2 -#define TCP_ECN_DEMAND_CWR 4 -#define TCP_ECN_SEEN 8 - -enum inet_csk_ack_state_t { - ICSK_ACK_SCHED = 1, - ICSK_ACK_TIMER = 2, - ICSK_ACK_PUSHED = 4, - ICSK_ACK_PUSHED2 = 8, - ICSK_ACK_NOW = 16 /* Send the next ACK immediately (once) */ -}; - -enum tcp_ca_event { - CA_EVENT_TX_START = 0, - CA_EVENT_CWND_RESTART = 1, - CA_EVENT_COMPLETE_CWR = 2, - CA_EVENT_LOSS = 3, - CA_EVENT_ECN_NO_CE = 4, - CA_EVENT_ECN_IS_CE = 5, -}; - -struct ack_sample { - __u32 pkts_acked; - __s32 rtt_us; - __u32 in_flight; -} __attribute__((preserve_access_index)); - -struct rate_sample { - __u64 prior_mstamp; /* starting timestamp for interval */ - __u32 prior_delivered; /* tp->delivered at "prior_mstamp" */ - __s32 delivered; /* number of packets delivered over interval */ - long interval_us; /* time for tp->delivered to incr "delivered" */ - __u32 snd_interval_us; /* snd interval for delivered packets */ - __u32 rcv_interval_us; /* rcv interval for delivered packets */ - long rtt_us; /* RTT of last (S)ACKed packet (or -1) */ - int losses; /* number of packets marked lost upon ACK */ - __u32 acked_sacked; /* number of packets newly (S)ACKed upon ACK */ - __u32 prior_in_flight; /* in flight before this ACK */ - bool is_app_limited; /* is sample from packet with bubble in pipe? */ - bool is_retrans; /* is sample from retransmission? */ - bool is_ack_delayed; /* is this (likely) a delayed ACK? */ -} __attribute__((preserve_access_index)); - -#define TCP_CA_NAME_MAX 16 -#define TCP_CONG_NEEDS_ECN 0x2 - -struct tcp_congestion_ops { - char name[TCP_CA_NAME_MAX]; - __u32 flags; - - /* initialize private data (optional) */ - void (*init)(struct sock *sk); - /* cleanup private data (optional) */ - void (*release)(struct sock *sk); - - /* return slow start threshold (required) */ - __u32 (*ssthresh)(struct sock *sk); - /* do new cwnd calculation (required) */ - void (*cong_avoid)(struct sock *sk, __u32 ack, __u32 acked); - /* call before changing ca_state (optional) */ - void (*set_state)(struct sock *sk, __u8 new_state); - /* call when cwnd event occurs (optional) */ - void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev); - /* call when ack arrives (optional) */ - void (*in_ack_event)(struct sock *sk, __u32 flags); - /* new value of cwnd after loss (required) */ - __u32 (*undo_cwnd)(struct sock *sk); - /* hook for packet ack accounting (optional) */ - void (*pkts_acked)(struct sock *sk, const struct ack_sample *sample); - /* override sysctl_tcp_min_tso_segs */ - __u32 (*min_tso_segs)(struct sock *sk); - /* returns the multiplier used in tcp_sndbuf_expand (optional) */ - __u32 (*sndbuf_expand)(struct sock *sk); - /* call when packets are delivered to update cwnd and pacing rate, - * after all the ca_state processing. (optional) - */ - void (*cong_control)(struct sock *sk, const struct rate_sample *rs); - void *owner; -}; - -#define min(a, b) ((a) < (b) ? (a) : (b)) -#define max(a, b) ((a) > (b) ? (a) : (b)) -#define min_not_zero(x, y) ({ \ - typeof(x) __x = (x); \ - typeof(y) __y = (y); \ - __x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); }) - -static __always_inline bool tcp_in_slow_start(const struct tcp_sock *tp) -{ - return tp->snd_cwnd < tp->snd_ssthresh; -} - -static __always_inline bool tcp_is_cwnd_limited(const struct sock *sk) -{ - const struct tcp_sock *tp = tcp_sk(sk); - - /* If in slow start, ensure cwnd grows to twice what was ACKed. */ - if (tcp_in_slow_start(tp)) - return tp->snd_cwnd < 2 * tp->max_packets_out; - - return !!BPF_CORE_READ_BITFIELD(tp, is_cwnd_limited); -} - -static __always_inline bool tcp_cc_eq(const char *a, const char *b) -{ - int i; - - for (i = 0; i < TCP_CA_NAME_MAX; i++) { - if (a[i] != b[i]) - return false; - if (!a[i]) - break; - } - - return true; -} - -extern __u32 tcp_slow_start(struct tcp_sock *tp, __u32 acked) __ksym; -extern void tcp_cong_avoid_ai(struct tcp_sock *tp, __u32 w, __u32 acked) __ksym; - -struct mptcp_sock { - struct inet_connection_sock sk; - - __u32 token; - struct sock *first; - char ca_name[TCP_CA_NAME_MAX]; -} __attribute__((preserve_access_index)); - -#endif diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c index edcd26106557..2a18bd320e92 100644 --- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c +++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c @@ -10,18 +10,30 @@ #include <linux/percpu-defs.h> #include <linux/sysfs.h> #include <linux/tracepoint.h> +#include <linux/net.h> +#include <linux/socket.h> +#include <linux/nsproxy.h> +#include <linux/inet.h> +#include <linux/in.h> +#include <linux/in6.h> +#include <linux/un.h> +#include <net/sock.h> #include "bpf_testmod.h" #include "bpf_testmod_kfunc.h" #define CREATE_TRACE_POINTS #include "bpf_testmod-events.h" +#define CONNECT_TIMEOUT_SEC 1 + typedef int (*func_proto_typedef)(long); typedef int (*func_proto_typedef_nested1)(func_proto_typedef); typedef int (*func_proto_typedef_nested2)(func_proto_typedef_nested1); DEFINE_PER_CPU(int, bpf_testmod_ksym_percpu) = 123; long bpf_testmod_test_struct_arg_result; +static DEFINE_MUTEX(sock_lock); +static struct socket *sock; struct bpf_testmod_struct_arg_1 { int a; @@ -497,6 +509,241 @@ __bpf_kfunc static u32 bpf_kfunc_call_test_static_unused_arg(u32 arg, u32 unused return arg; } +__bpf_kfunc void bpf_kfunc_call_test_sleepable(void) +{ +} + +__bpf_kfunc int bpf_kfunc_init_sock(struct init_sock_args *args) +{ + int proto; + int err; + + mutex_lock(&sock_lock); + + if (sock) { + pr_err("%s called without releasing old sock", __func__); + err = -EPERM; + goto out; + } + + switch (args->af) { + case AF_INET: + case AF_INET6: + proto = args->type == SOCK_STREAM ? IPPROTO_TCP : IPPROTO_UDP; + break; + case AF_UNIX: + proto = PF_UNIX; + break; + default: + pr_err("invalid address family %d\n", args->af); + err = -EINVAL; + goto out; + } + + err = sock_create_kern(current->nsproxy->net_ns, args->af, args->type, + proto, &sock); + + if (!err) + /* Set timeout for call to kernel_connect() to prevent it from hanging, + * and consider the connection attempt failed if it returns + * -EINPROGRESS. + */ + sock->sk->sk_sndtimeo = CONNECT_TIMEOUT_SEC * HZ; +out: + mutex_unlock(&sock_lock); + + return err; +} + +__bpf_kfunc void bpf_kfunc_close_sock(void) +{ + mutex_lock(&sock_lock); + + if (sock) { + sock_release(sock); + sock = NULL; + } + + mutex_unlock(&sock_lock); +} + +__bpf_kfunc int bpf_kfunc_call_kernel_connect(struct addr_args *args) +{ + int err; + + if (args->addrlen > sizeof(args->addr)) + return -EINVAL; + + mutex_lock(&sock_lock); + + if (!sock) { + pr_err("%s called without initializing sock", __func__); + err = -EPERM; + goto out; + } + + err = kernel_connect(sock, (struct sockaddr *)&args->addr, + args->addrlen, 0); +out: + mutex_unlock(&sock_lock); + + return err; +} + +__bpf_kfunc int bpf_kfunc_call_kernel_bind(struct addr_args *args) +{ + int err; + + if (args->addrlen > sizeof(args->addr)) + return -EINVAL; + + mutex_lock(&sock_lock); + + if (!sock) { + pr_err("%s called without initializing sock", __func__); + err = -EPERM; + goto out; + } + + err = kernel_bind(sock, (struct sockaddr *)&args->addr, args->addrlen); +out: + mutex_unlock(&sock_lock); + + return err; +} + +__bpf_kfunc int bpf_kfunc_call_kernel_listen(void) +{ + int err; + + mutex_lock(&sock_lock); + + if (!sock) { + pr_err("%s called without initializing sock", __func__); + err = -EPERM; + goto out; + } + + err = kernel_listen(sock, 128); +out: + mutex_unlock(&sock_lock); + + return err; +} + +__bpf_kfunc int bpf_kfunc_call_kernel_sendmsg(struct sendmsg_args *args) +{ + struct msghdr msg = { + .msg_name = &args->addr.addr, + .msg_namelen = args->addr.addrlen, + }; + struct kvec iov; + int err; + + if (args->addr.addrlen > sizeof(args->addr.addr) || + args->msglen > sizeof(args->msg)) + return -EINVAL; + + iov.iov_base = args->msg; + iov.iov_len = args->msglen; + + mutex_lock(&sock_lock); + + if (!sock) { + pr_err("%s called without initializing sock", __func__); + err = -EPERM; + goto out; + } + + err = kernel_sendmsg(sock, &msg, &iov, 1, args->msglen); + args->addr.addrlen = msg.msg_namelen; +out: + mutex_unlock(&sock_lock); + + return err; +} + +__bpf_kfunc int bpf_kfunc_call_sock_sendmsg(struct sendmsg_args *args) +{ + struct msghdr msg = { + .msg_name = &args->addr.addr, + .msg_namelen = args->addr.addrlen, + }; + struct kvec iov; + int err; + + if (args->addr.addrlen > sizeof(args->addr.addr) || + args->msglen > sizeof(args->msg)) + return -EINVAL; + + iov.iov_base = args->msg; + iov.iov_len = args->msglen; + + iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, &iov, 1, args->msglen); + mutex_lock(&sock_lock); + + if (!sock) { + pr_err("%s called without initializing sock", __func__); + err = -EPERM; + goto out; + } + + err = sock_sendmsg(sock, &msg); + args->addr.addrlen = msg.msg_namelen; +out: + mutex_unlock(&sock_lock); + + return err; +} + +__bpf_kfunc int bpf_kfunc_call_kernel_getsockname(struct addr_args *args) +{ + int err; + + mutex_lock(&sock_lock); + + if (!sock) { + pr_err("%s called without initializing sock", __func__); + err = -EPERM; + goto out; + } + + err = kernel_getsockname(sock, (struct sockaddr *)&args->addr); + if (err < 0) + goto out; + + args->addrlen = err; + err = 0; +out: + mutex_unlock(&sock_lock); + + return err; +} + +__bpf_kfunc int bpf_kfunc_call_kernel_getpeername(struct addr_args *args) +{ + int err; + + mutex_lock(&sock_lock); + + if (!sock) { + pr_err("%s called without initializing sock", __func__); + err = -EPERM; + goto out; + } + + err = kernel_getpeername(sock, (struct sockaddr *)&args->addr); + if (err < 0) + goto out; + + args->addrlen = err; + err = 0; +out: + mutex_unlock(&sock_lock); + + return err; +} + BTF_KFUNCS_START(bpf_testmod_check_kfunc_ids) BTF_ID_FLAGS(func, bpf_testmod_test_mod_kfunc) BTF_ID_FLAGS(func, bpf_kfunc_call_test1) @@ -523,6 +770,16 @@ BTF_ID_FLAGS(func, bpf_kfunc_call_test_ref, KF_TRUSTED_ARGS | KF_RCU) BTF_ID_FLAGS(func, bpf_kfunc_call_test_destructive, KF_DESTRUCTIVE) BTF_ID_FLAGS(func, bpf_kfunc_call_test_static_unused_arg) BTF_ID_FLAGS(func, bpf_kfunc_call_test_offset) +BTF_ID_FLAGS(func, bpf_kfunc_call_test_sleepable, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_init_sock, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_close_sock, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_connect, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_bind, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_listen, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_sendmsg, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_call_sock_sendmsg, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_getsockname, KF_SLEEPABLE) +BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_getpeername, KF_SLEEPABLE) BTF_KFUNCS_END(bpf_testmod_check_kfunc_ids) static int bpf_testmod_ops_init(struct btf *btf) @@ -653,6 +910,8 @@ static int bpf_testmod_init(void) return ret; if (bpf_fentry_test1(0) < 0) return -EINVAL; + sock = NULL; + mutex_init(&sock_lock); return sysfs_create_bin_file(kernel_kobj, &bin_attr_bpf_testmod_file); } @@ -666,6 +925,7 @@ static void bpf_testmod_exit(void) while (refcount_read(&prog_test_struct.cnt) > 1) msleep(20); + bpf_kfunc_close_sock(); sysfs_remove_bin_file(kernel_kobj, &bin_attr_bpf_testmod_file); } diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h index 7c664dd61059..b0d586a6751f 100644 --- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h +++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h @@ -64,6 +64,22 @@ struct prog_test_fail3 { char arr2[]; }; +struct init_sock_args { + int af; + int type; +}; + +struct addr_args { + char addr[sizeof(struct __kernel_sockaddr_storage)]; + int addrlen; +}; + +struct sendmsg_args { + struct addr_args addr; + char msg[10]; + int msglen; +}; + struct prog_test_ref_kfunc * bpf_kfunc_call_test_acquire(unsigned long *scalar_ptr) __ksym; void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p) __ksym; @@ -96,6 +112,7 @@ void bpf_kfunc_call_test_pass2(struct prog_test_pass2 *p) __ksym; void bpf_kfunc_call_test_mem_len_fail2(__u64 *mem, int len) __ksym; void bpf_kfunc_call_test_destructive(void) __ksym; +void bpf_kfunc_call_test_sleepable(void) __ksym; void bpf_kfunc_call_test_offset(struct prog_test_ref_kfunc *p); struct prog_test_member *bpf_kfunc_call_memb_acquire(void); @@ -106,4 +123,15 @@ void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p); void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len); void bpf_kfunc_common_test(void) __ksym; + +int bpf_kfunc_init_sock(struct init_sock_args *args) __ksym; +void bpf_kfunc_close_sock(void) __ksym; +int bpf_kfunc_call_kernel_connect(struct addr_args *args) __ksym; +int bpf_kfunc_call_kernel_bind(struct addr_args *args) __ksym; +int bpf_kfunc_call_kernel_listen(void) __ksym; +int bpf_kfunc_call_kernel_sendmsg(struct sendmsg_args *args) __ksym; +int bpf_kfunc_call_sock_sendmsg(struct sendmsg_args *args) __ksym; +int bpf_kfunc_call_kernel_getsockname(struct addr_args *args) __ksym; +int bpf_kfunc_call_kernel_getpeername(struct addr_args *args) __ksym; + #endif /* _BPF_TESTMOD_KFUNC_H */ diff --git a/tools/testing/selftests/bpf/cgroup_helpers.c b/tools/testing/selftests/bpf/cgroup_helpers.c index 19be9c63d5e8..23bb9a9e6a7d 100644 --- a/tools/testing/selftests/bpf/cgroup_helpers.c +++ b/tools/testing/selftests/bpf/cgroup_helpers.c @@ -429,7 +429,7 @@ int create_and_get_cgroup(const char *relative_path) * which is an invalid cgroup id. * If there is a failure, it prints the error to stderr. */ -unsigned long long get_cgroup_id_from_path(const char *cgroup_workdir) +static unsigned long long get_cgroup_id_from_path(const char *cgroup_workdir) { int dirfd, err, flags, mount_id, fhsize; union { @@ -508,6 +508,9 @@ int cgroup_setup_and_join(const char *path) { /** * setup_classid_environment() - Setup the cgroupv1 net_cls environment * + * This function should only be called in a custom mount namespace, e.g. + * created by running setup_cgroup_environment. + * * After calling this function, cleanup_classid_environment should be called * once testing is complete. * diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config index 01f241ea2c67..eeabd798bc3a 100644 --- a/tools/testing/selftests/bpf/config +++ b/tools/testing/selftests/bpf/config @@ -13,7 +13,12 @@ CONFIG_BPF_SYSCALL=y CONFIG_CGROUP_BPF=y CONFIG_CRYPTO_HMAC=y CONFIG_CRYPTO_SHA256=y +CONFIG_CRYPTO_USER_API=y CONFIG_CRYPTO_USER_API_HASH=y +CONFIG_CRYPTO_USER_API_SKCIPHER=y +CONFIG_CRYPTO_SKCIPHER=y +CONFIG_CRYPTO_ECB=y +CONFIG_CRYPTO_AES=y CONFIG_DEBUG_INFO=y CONFIG_DEBUG_INFO_BTF=y CONFIG_DEBUG_INFO_DWARF4=y @@ -88,3 +93,5 @@ CONFIG_VSOCKETS=y CONFIG_VXLAN=y CONFIG_XDP_SOCKETS=y CONFIG_XFRM_INTERFACE=y +CONFIG_TCP_CONG_DCTCP=y +CONFIG_TCP_CONG_BBR=y diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index 6db27a9088e9..35250e6cde7f 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -52,6 +52,8 @@ struct ipv6_packet pkt_v6 = { .tcp.doff = 5, }; +static const struct network_helper_opts default_opts; + int settimeo(int fd, int timeout_ms) { struct timeval timeout = { .tv_sec = 3 }; @@ -78,24 +80,22 @@ int settimeo(int fd, int timeout_ms) #define save_errno_close(fd) ({ int __save = errno; close(fd); errno = __save; }) -static int __start_server(int type, int protocol, const struct sockaddr *addr, - socklen_t addrlen, int timeout_ms, bool reuseport) +static int __start_server(int type, const struct sockaddr *addr, socklen_t addrlen, + const struct network_helper_opts *opts) { - int on = 1; int fd; - fd = socket(addr->sa_family, type, protocol); + fd = socket(addr->sa_family, type, opts->proto); if (fd < 0) { log_err("Failed to create server socket"); return -1; } - if (settimeo(fd, timeout_ms)) + if (settimeo(fd, opts->timeout_ms)) goto error_close; - if (reuseport && - setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(on))) { - log_err("Failed to set SO_REUSEPORT"); + if (opts->post_socket_cb && opts->post_socket_cb(fd, NULL)) { + log_err("Failed to call post_socket_cb"); goto error_close; } @@ -118,35 +118,35 @@ error_close: return -1; } -static int start_server_proto(int family, int type, int protocol, - const char *addr_str, __u16 port, int timeout_ms) +int start_server(int family, int type, const char *addr_str, __u16 port, + int timeout_ms) { + struct network_helper_opts opts = { + .timeout_ms = timeout_ms, + }; struct sockaddr_storage addr; socklen_t addrlen; if (make_sockaddr(family, addr_str, port, &addr, &addrlen)) return -1; - return __start_server(type, protocol, (struct sockaddr *)&addr, - addrlen, timeout_ms, false); + return __start_server(type, (struct sockaddr *)&addr, addrlen, &opts); } -int start_server(int family, int type, const char *addr_str, __u16 port, - int timeout_ms) +static int reuseport_cb(int fd, const struct post_socket_opts *opts) { - return start_server_proto(family, type, 0, addr_str, port, timeout_ms); -} + int on = 1; -int start_mptcp_server(int family, const char *addr_str, __u16 port, - int timeout_ms) -{ - return start_server_proto(family, SOCK_STREAM, IPPROTO_MPTCP, addr_str, - port, timeout_ms); + return setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(on)); } int *start_reuseport_server(int family, int type, const char *addr_str, __u16 port, int timeout_ms, unsigned int nr_listens) { + struct network_helper_opts opts = { + .timeout_ms = timeout_ms, + .post_socket_cb = reuseport_cb, + }; struct sockaddr_storage addr; unsigned int nr_fds = 0; socklen_t addrlen; @@ -162,8 +162,7 @@ int *start_reuseport_server(int family, int type, const char *addr_str, if (!fds) return NULL; - fds[0] = __start_server(type, 0, (struct sockaddr *)&addr, addrlen, - timeout_ms, true); + fds[0] = __start_server(type, (struct sockaddr *)&addr, addrlen, &opts); if (fds[0] == -1) goto close_fds; nr_fds = 1; @@ -172,8 +171,7 @@ int *start_reuseport_server(int family, int type, const char *addr_str, goto close_fds; for (; nr_fds < nr_listens; nr_fds++) { - fds[nr_fds] = __start_server(type, 0, (struct sockaddr *)&addr, - addrlen, timeout_ms, true); + fds[nr_fds] = __start_server(type, (struct sockaddr *)&addr, addrlen, &opts); if (fds[nr_fds] == -1) goto close_fds; } @@ -185,6 +183,15 @@ close_fds: return NULL; } +int start_server_addr(int type, const struct sockaddr_storage *addr, socklen_t len, + const struct network_helper_opts *opts) +{ + if (!opts) + opts = &default_opts; + + return __start_server(type, (struct sockaddr *)addr, len, opts); +} + void free_fds(int *fds, unsigned int nr_close_fds) { if (fds) { @@ -258,17 +265,24 @@ static int connect_fd_to_addr(int fd, return 0; } -int connect_to_addr(const struct sockaddr_storage *addr, socklen_t addrlen, int type) +int connect_to_addr(int type, const struct sockaddr_storage *addr, socklen_t addrlen, + const struct network_helper_opts *opts) { int fd; - fd = socket(addr->ss_family, type, 0); + if (!opts) + opts = &default_opts; + + fd = socket(addr->ss_family, type, opts->proto); if (fd < 0) { log_err("Failed to create client socket"); return -1; } - if (connect_fd_to_addr(fd, addr, addrlen, false)) + if (settimeo(fd, opts->timeout_ms)) + goto error_close; + + if (connect_fd_to_addr(fd, addr, addrlen, opts->must_fail)) goto error_close; return fd; @@ -278,8 +292,6 @@ error_close: return -1; } -static const struct network_helper_opts default_opts; - int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts) { struct sockaddr_storage addr; @@ -442,25 +454,35 @@ struct nstoken *open_netns(const char *name) struct nstoken *token; token = calloc(1, sizeof(struct nstoken)); - if (!ASSERT_OK_PTR(token, "malloc token")) + if (!token) { + log_err("Failed to malloc token"); return NULL; + } token->orig_netns_fd = open("/proc/self/ns/net", O_RDONLY); - if (!ASSERT_GE(token->orig_netns_fd, 0, "open /proc/self/ns/net")) + if (token->orig_netns_fd == -1) { + log_err("Failed to open(/proc/self/ns/net)"); goto fail; + } snprintf(nspath, sizeof(nspath), "%s/%s", "/var/run/netns", name); nsfd = open(nspath, O_RDONLY | O_CLOEXEC); - if (!ASSERT_GE(nsfd, 0, "open netns fd")) + if (nsfd == -1) { + log_err("Failed to open(%s)", nspath); goto fail; + } err = setns(nsfd, CLONE_NEWNET); close(nsfd); - if (!ASSERT_OK(err, "setns")) + if (err) { + log_err("Failed to setns(nsfd)"); goto fail; + } return token; fail: + if (token->orig_netns_fd != -1) + close(token->orig_netns_fd); free(token); return NULL; } @@ -470,7 +492,8 @@ void close_netns(struct nstoken *token) if (!token) return; - ASSERT_OK(setns(token->orig_netns_fd, CLONE_NEWNET), "setns"); + if (setns(token->orig_netns_fd, CLONE_NEWNET)) + log_err("Failed to setns(orig_netns_fd)"); close(token->orig_netns_fd); free(token); } @@ -497,3 +520,153 @@ int get_socket_local_port(int sock_fd) return -1; } + +int get_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param) +{ + struct ifreq ifr = {0}; + int sockfd, err; + + sockfd = socket(AF_INET, SOCK_DGRAM, 0); + if (sockfd < 0) + return -errno; + + memcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + + ring_param->cmd = ETHTOOL_GRINGPARAM; + ifr.ifr_data = (char *)ring_param; + + if (ioctl(sockfd, SIOCETHTOOL, &ifr) < 0) { + err = errno; + close(sockfd); + return -err; + } + + close(sockfd); + return 0; +} + +int set_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param) +{ + struct ifreq ifr = {0}; + int sockfd, err; + + sockfd = socket(AF_INET, SOCK_DGRAM, 0); + if (sockfd < 0) + return -errno; + + memcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + + ring_param->cmd = ETHTOOL_SRINGPARAM; + ifr.ifr_data = (char *)ring_param; + + if (ioctl(sockfd, SIOCETHTOOL, &ifr) < 0) { + err = errno; + close(sockfd); + return -err; + } + + close(sockfd); + return 0; +} + +struct send_recv_arg { + int fd; + uint32_t bytes; + int stop; +}; + +static void *send_recv_server(void *arg) +{ + struct send_recv_arg *a = (struct send_recv_arg *)arg; + ssize_t nr_sent = 0, bytes = 0; + char batch[1500]; + int err = 0, fd; + + fd = accept(a->fd, NULL, NULL); + while (fd == -1) { + if (errno == EINTR) + continue; + err = -errno; + goto done; + } + + if (settimeo(fd, 0)) { + err = -errno; + goto done; + } + + while (bytes < a->bytes && !READ_ONCE(a->stop)) { + nr_sent = send(fd, &batch, + MIN(a->bytes - bytes, sizeof(batch)), 0); + if (nr_sent == -1 && errno == EINTR) + continue; + if (nr_sent == -1) { + err = -errno; + break; + } + bytes += nr_sent; + } + + if (bytes != a->bytes) { + log_err("send %zd expected %u", bytes, a->bytes); + if (!err) + err = bytes > a->bytes ? -E2BIG : -EINTR; + } + +done: + if (fd >= 0) + close(fd); + if (err) { + WRITE_ONCE(a->stop, 1); + return ERR_PTR(err); + } + return NULL; +} + +int send_recv_data(int lfd, int fd, uint32_t total_bytes) +{ + ssize_t nr_recv = 0, bytes = 0; + struct send_recv_arg arg = { + .fd = lfd, + .bytes = total_bytes, + .stop = 0, + }; + pthread_t srv_thread; + void *thread_ret; + char batch[1500]; + int err = 0; + + err = pthread_create(&srv_thread, NULL, send_recv_server, (void *)&arg); + if (err) { + log_err("Failed to pthread_create"); + return err; + } + + /* recv total_bytes */ + while (bytes < total_bytes && !READ_ONCE(arg.stop)) { + nr_recv = recv(fd, &batch, + MIN(total_bytes - bytes, sizeof(batch)), 0); + if (nr_recv == -1 && errno == EINTR) + continue; + if (nr_recv == -1) { + err = -errno; + break; + } + bytes += nr_recv; + } + + if (bytes != total_bytes) { + log_err("recv %zd expected %u", bytes, total_bytes); + if (!err) + err = bytes > total_bytes ? -E2BIG : -EINTR; + } + + WRITE_ONCE(arg.stop, 1); + pthread_join(srv_thread, &thread_ret); + if (IS_ERR(thread_ret)) { + log_err("Failed in thread_ret %ld", PTR_ERR(thread_ret)); + err = err ? : PTR_ERR(thread_ret); + } + + return err; +} diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h index 94b9be24e39b..883c7ea9d8d5 100644 --- a/tools/testing/selftests/bpf/network_helpers.h +++ b/tools/testing/selftests/bpf/network_helpers.h @@ -9,14 +9,20 @@ typedef __u16 __sum16; #include <linux/if_packet.h> #include <linux/ip.h> #include <linux/ipv6.h> +#include <linux/ethtool.h> +#include <linux/sockios.h> +#include <linux/err.h> #include <netinet/tcp.h> #include <bpf/bpf_endian.h> +#include <net/if.h> #define MAGIC_VAL 0x1234 #define NUM_ITER 100000 #define VIP_NUM 5 #define MAGIC_BYTES 123 +struct post_socket_opts {}; + struct network_helper_opts { const char *cc; int timeout_ms; @@ -24,6 +30,7 @@ struct network_helper_opts { bool noconnect; int type; int proto; + int (*post_socket_cb)(int fd, const struct post_socket_opts *opts); }; /* ipv4 test vector */ @@ -45,13 +52,14 @@ extern struct ipv6_packet pkt_v6; int settimeo(int fd, int timeout_ms); int start_server(int family, int type, const char *addr, __u16 port, int timeout_ms); -int start_mptcp_server(int family, const char *addr, __u16 port, - int timeout_ms); int *start_reuseport_server(int family, int type, const char *addr_str, __u16 port, int timeout_ms, unsigned int nr_listens); +int start_server_addr(int type, const struct sockaddr_storage *addr, socklen_t len, + const struct network_helper_opts *opts); void free_fds(int *fds, unsigned int nr_close_fds); -int connect_to_addr(const struct sockaddr_storage *addr, socklen_t len, int type); +int connect_to_addr(int type, const struct sockaddr_storage *addr, socklen_t len, + const struct network_helper_opts *opts); int connect_to_fd(int server_fd, int timeout_ms); int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts); int connect_fd_to_fd(int client_fd, int server_fd, int timeout_ms); @@ -61,6 +69,8 @@ int make_sockaddr(int family, const char *addr_str, __u16 port, struct sockaddr_storage *addr, socklen_t *len); char *ping_command(int family); int get_socket_local_port(int sock_fd); +int get_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param); +int set_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param); struct nstoken; /** @@ -71,6 +81,7 @@ struct nstoken; */ struct nstoken *open_netns(const char *name); void close_netns(struct nstoken *token); +int send_recv_data(int lfd, int fd, uint32_t total_bytes); static __u16 csum_fold(__u32 csum) { diff --git a/tools/testing/selftests/bpf/prog_tests/arena_atomics.c b/tools/testing/selftests/bpf/prog_tests/arena_atomics.c new file mode 100644 index 000000000000..0807a48a58ee --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/arena_atomics.c @@ -0,0 +1,186 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ +#include <test_progs.h> +#include "arena_atomics.skel.h" + +static void test_add(struct arena_atomics *skel) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err, prog_fd; + + /* No need to attach it, just run it directly */ + prog_fd = bpf_program__fd(skel->progs.add); + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, "test_run_opts err")) + return; + if (!ASSERT_OK(topts.retval, "test_run_opts retval")) + return; + + ASSERT_EQ(skel->arena->add64_value, 3, "add64_value"); + ASSERT_EQ(skel->arena->add64_result, 1, "add64_result"); + + ASSERT_EQ(skel->arena->add32_value, 3, "add32_value"); + ASSERT_EQ(skel->arena->add32_result, 1, "add32_result"); + + ASSERT_EQ(skel->arena->add_stack_value_copy, 3, "add_stack_value"); + ASSERT_EQ(skel->arena->add_stack_result, 1, "add_stack_result"); + + ASSERT_EQ(skel->arena->add_noreturn_value, 3, "add_noreturn_value"); +} + +static void test_sub(struct arena_atomics *skel) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err, prog_fd; + + /* No need to attach it, just run it directly */ + prog_fd = bpf_program__fd(skel->progs.sub); + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, "test_run_opts err")) + return; + if (!ASSERT_OK(topts.retval, "test_run_opts retval")) + return; + + ASSERT_EQ(skel->arena->sub64_value, -1, "sub64_value"); + ASSERT_EQ(skel->arena->sub64_result, 1, "sub64_result"); + + ASSERT_EQ(skel->arena->sub32_value, -1, "sub32_value"); + ASSERT_EQ(skel->arena->sub32_result, 1, "sub32_result"); + + ASSERT_EQ(skel->arena->sub_stack_value_copy, -1, "sub_stack_value"); + ASSERT_EQ(skel->arena->sub_stack_result, 1, "sub_stack_result"); + + ASSERT_EQ(skel->arena->sub_noreturn_value, -1, "sub_noreturn_value"); +} + +static void test_and(struct arena_atomics *skel) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err, prog_fd; + + /* No need to attach it, just run it directly */ + prog_fd = bpf_program__fd(skel->progs.and); + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, "test_run_opts err")) + return; + if (!ASSERT_OK(topts.retval, "test_run_opts retval")) + return; + + ASSERT_EQ(skel->arena->and64_value, 0x010ull << 32, "and64_value"); + ASSERT_EQ(skel->arena->and32_value, 0x010, "and32_value"); +} + +static void test_or(struct arena_atomics *skel) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err, prog_fd; + + /* No need to attach it, just run it directly */ + prog_fd = bpf_program__fd(skel->progs.or); + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, "test_run_opts err")) + return; + if (!ASSERT_OK(topts.retval, "test_run_opts retval")) + return; + + ASSERT_EQ(skel->arena->or64_value, 0x111ull << 32, "or64_value"); + ASSERT_EQ(skel->arena->or32_value, 0x111, "or32_value"); +} + +static void test_xor(struct arena_atomics *skel) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err, prog_fd; + + /* No need to attach it, just run it directly */ + prog_fd = bpf_program__fd(skel->progs.xor); + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, "test_run_opts err")) + return; + if (!ASSERT_OK(topts.retval, "test_run_opts retval")) + return; + + ASSERT_EQ(skel->arena->xor64_value, 0x101ull << 32, "xor64_value"); + ASSERT_EQ(skel->arena->xor32_value, 0x101, "xor32_value"); +} + +static void test_cmpxchg(struct arena_atomics *skel) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err, prog_fd; + + /* No need to attach it, just run it directly */ + prog_fd = bpf_program__fd(skel->progs.cmpxchg); + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, "test_run_opts err")) + return; + if (!ASSERT_OK(topts.retval, "test_run_opts retval")) + return; + + ASSERT_EQ(skel->arena->cmpxchg64_value, 2, "cmpxchg64_value"); + ASSERT_EQ(skel->arena->cmpxchg64_result_fail, 1, "cmpxchg_result_fail"); + ASSERT_EQ(skel->arena->cmpxchg64_result_succeed, 1, "cmpxchg_result_succeed"); + + ASSERT_EQ(skel->arena->cmpxchg32_value, 2, "lcmpxchg32_value"); + ASSERT_EQ(skel->arena->cmpxchg32_result_fail, 1, "cmpxchg_result_fail"); + ASSERT_EQ(skel->arena->cmpxchg32_result_succeed, 1, "cmpxchg_result_succeed"); +} + +static void test_xchg(struct arena_atomics *skel) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err, prog_fd; + + /* No need to attach it, just run it directly */ + prog_fd = bpf_program__fd(skel->progs.xchg); + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, "test_run_opts err")) + return; + if (!ASSERT_OK(topts.retval, "test_run_opts retval")) + return; + + ASSERT_EQ(skel->arena->xchg64_value, 2, "xchg64_value"); + ASSERT_EQ(skel->arena->xchg64_result, 1, "xchg64_result"); + + ASSERT_EQ(skel->arena->xchg32_value, 2, "xchg32_value"); + ASSERT_EQ(skel->arena->xchg32_result, 1, "xchg32_result"); +} + +void test_arena_atomics(void) +{ + struct arena_atomics *skel; + int err; + + skel = arena_atomics__open(); + if (!ASSERT_OK_PTR(skel, "arena atomics skeleton open")) + return; + + if (skel->data->skip_tests) { + printf("%s:SKIP:no ENABLE_ATOMICS_TESTS or no addr_space_cast support in clang", + __func__); + test__skip(); + goto cleanup; + } + err = arena_atomics__load(skel); + if (!ASSERT_OK(err, "arena atomics skeleton load")) + return; + skel->bss->pid = getpid(); + + if (test__start_subtest("add")) + test_add(skel); + if (test__start_subtest("sub")) + test_sub(skel); + if (test__start_subtest("and")) + test_and(skel); + if (test__start_subtest("or")) + test_or(skel); + if (test__start_subtest("xor")) + test_xor(skel); + if (test__start_subtest("cmpxchg")) + test_cmpxchg(skel); + if (test__start_subtest("xchg")) + test_xchg(skel); + +cleanup: + arena_atomics__destroy(skel); +} diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c b/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c index 1454cebc262b..4407ea428e77 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c @@ -573,6 +573,115 @@ cleanup: close(lsm_fd); } +static void tp_btf_subtest(struct test_bpf_cookie *skel) +{ + __u64 cookie; + int prog_fd, link_fd = -1; + struct bpf_link *link = NULL; + LIBBPF_OPTS(bpf_link_create_opts, link_opts); + LIBBPF_OPTS(bpf_raw_tp_opts, raw_tp_opts); + LIBBPF_OPTS(bpf_trace_opts, trace_opts); + + /* There are three different ways to attach tp_btf (BTF-aware raw + * tracepoint) programs. Let's test all of them. + */ + prog_fd = bpf_program__fd(skel->progs.handle_tp_btf); + + /* low-level BPF_RAW_TRACEPOINT_OPEN command wrapper */ + skel->bss->tp_btf_res = 0; + + raw_tp_opts.cookie = cookie = 0x11000000000000L; + link_fd = bpf_raw_tracepoint_open_opts(prog_fd, &raw_tp_opts); + if (!ASSERT_GE(link_fd, 0, "bpf_raw_tracepoint_open_opts")) + goto cleanup; + + usleep(1); /* trigger */ + close(link_fd); /* detach */ + link_fd = -1; + + ASSERT_EQ(skel->bss->tp_btf_res, cookie, "raw_tp_open_res"); + + /* low-level generic bpf_link_create() API */ + skel->bss->tp_btf_res = 0; + + link_opts.tracing.cookie = cookie = 0x22000000000000L; + link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_RAW_TP, &link_opts); + if (!ASSERT_GE(link_fd, 0, "bpf_link_create")) + goto cleanup; + + usleep(1); /* trigger */ + close(link_fd); /* detach */ + link_fd = -1; + + ASSERT_EQ(skel->bss->tp_btf_res, cookie, "link_create_res"); + + /* high-level bpf_link-based bpf_program__attach_trace_opts() API */ + skel->bss->tp_btf_res = 0; + + trace_opts.cookie = cookie = 0x33000000000000L; + link = bpf_program__attach_trace_opts(skel->progs.handle_tp_btf, &trace_opts); + if (!ASSERT_OK_PTR(link, "attach_trace_opts")) + goto cleanup; + + usleep(1); /* trigger */ + bpf_link__destroy(link); /* detach */ + link = NULL; + + ASSERT_EQ(skel->bss->tp_btf_res, cookie, "attach_trace_opts_res"); + +cleanup: + if (link_fd >= 0) + close(link_fd); + bpf_link__destroy(link); +} + +static void raw_tp_subtest(struct test_bpf_cookie *skel) +{ + __u64 cookie; + int prog_fd, link_fd = -1; + struct bpf_link *link = NULL; + LIBBPF_OPTS(bpf_raw_tp_opts, raw_tp_opts); + LIBBPF_OPTS(bpf_raw_tracepoint_opts, opts); + + /* There are two different ways to attach raw_tp programs */ + prog_fd = bpf_program__fd(skel->progs.handle_raw_tp); + + /* low-level BPF_RAW_TRACEPOINT_OPEN command wrapper */ + skel->bss->raw_tp_res = 0; + + raw_tp_opts.tp_name = "sys_enter"; + raw_tp_opts.cookie = cookie = 0x55000000000000L; + link_fd = bpf_raw_tracepoint_open_opts(prog_fd, &raw_tp_opts); + if (!ASSERT_GE(link_fd, 0, "bpf_raw_tracepoint_open_opts")) + goto cleanup; + + usleep(1); /* trigger */ + close(link_fd); /* detach */ + link_fd = -1; + + ASSERT_EQ(skel->bss->raw_tp_res, cookie, "raw_tp_open_res"); + + /* high-level bpf_link-based bpf_program__attach_raw_tracepoint_opts() API */ + skel->bss->raw_tp_res = 0; + + opts.cookie = cookie = 0x66000000000000L; + link = bpf_program__attach_raw_tracepoint_opts(skel->progs.handle_raw_tp, + "sys_enter", &opts); + if (!ASSERT_OK_PTR(link, "attach_raw_tp_opts")) + goto cleanup; + + usleep(1); /* trigger */ + bpf_link__destroy(link); /* detach */ + link = NULL; + + ASSERT_EQ(skel->bss->raw_tp_res, cookie, "attach_raw_tp_opts_res"); + +cleanup: + if (link_fd >= 0) + close(link_fd); + bpf_link__destroy(link); +} + void test_bpf_cookie(void) { struct test_bpf_cookie *skel; @@ -601,6 +710,9 @@ void test_bpf_cookie(void) tracing_subtest(skel); if (test__start_subtest("lsm")) lsm_subtest(skel); - + if (test__start_subtest("tp_btf")) + tp_btf_subtest(skel); + if (test__start_subtest("raw_tp")) + raw_tp_subtest(skel); test_bpf_cookie__destroy(skel); } diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c index a88e6e07e4f5..0aca02532794 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -13,6 +13,8 @@ #include "tcp_ca_write_sk_pacing.skel.h" #include "tcp_ca_incompl_cong_ops.skel.h" #include "tcp_ca_unsupp_cong_op.skel.h" +#include "tcp_ca_kfunc.skel.h" +#include "bpf_cc_cubic.skel.h" #ifndef ENOTSUPP #define ENOTSUPP 524 @@ -20,7 +22,6 @@ static const unsigned int total_bytes = 10 * 1024 * 1024; static int expected_stg = 0xeB9F; -static int stop; static int settcpca(int fd, const char *tcp_ca) { @@ -33,63 +34,12 @@ static int settcpca(int fd, const char *tcp_ca) return 0; } -static void *server(void *arg) -{ - int lfd = (int)(long)arg, err = 0, fd; - ssize_t nr_sent = 0, bytes = 0; - char batch[1500]; - - fd = accept(lfd, NULL, NULL); - while (fd == -1) { - if (errno == EINTR) - continue; - err = -errno; - goto done; - } - - if (settimeo(fd, 0)) { - err = -errno; - goto done; - } - - while (bytes < total_bytes && !READ_ONCE(stop)) { - nr_sent = send(fd, &batch, - MIN(total_bytes - bytes, sizeof(batch)), 0); - if (nr_sent == -1 && errno == EINTR) - continue; - if (nr_sent == -1) { - err = -errno; - break; - } - bytes += nr_sent; - } - - ASSERT_EQ(bytes, total_bytes, "send"); - -done: - if (fd >= 0) - close(fd); - if (err) { - WRITE_ONCE(stop, 1); - return ERR_PTR(err); - } - return NULL; -} - static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map) { - struct sockaddr_in6 sa6 = {}; - ssize_t nr_recv = 0, bytes = 0; int lfd = -1, fd = -1; - pthread_t srv_thread; - socklen_t addrlen = sizeof(sa6); - void *thread_ret; - char batch[1500]; int err; - WRITE_ONCE(stop, 0); - - lfd = socket(AF_INET6, SOCK_STREAM, 0); + lfd = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0); if (!ASSERT_NEQ(lfd, -1, "socket")) return; @@ -99,23 +49,7 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map) return; } - if (settcpca(lfd, tcp_ca) || settcpca(fd, tcp_ca) || - settimeo(lfd, 0) || settimeo(fd, 0)) - goto done; - - /* bind, listen and start server thread to accept */ - sa6.sin6_family = AF_INET6; - sa6.sin6_addr = in6addr_loopback; - err = bind(lfd, (struct sockaddr *)&sa6, addrlen); - if (!ASSERT_NEQ(err, -1, "bind")) - goto done; - - err = getsockname(lfd, (struct sockaddr *)&sa6, &addrlen); - if (!ASSERT_NEQ(err, -1, "getsockname")) - goto done; - - err = listen(lfd, 1); - if (!ASSERT_NEQ(err, -1, "listen")) + if (settcpca(lfd, tcp_ca) || settcpca(fd, tcp_ca)) goto done; if (sk_stg_map) { @@ -126,7 +60,7 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map) } /* connect to server */ - err = connect(fd, (struct sockaddr *)&sa6, addrlen); + err = connect_fd_to_fd(fd, lfd, 0); if (!ASSERT_NEQ(err, -1, "connect")) goto done; @@ -140,26 +74,7 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map) goto done; } - err = pthread_create(&srv_thread, NULL, server, (void *)(long)lfd); - if (!ASSERT_OK(err, "pthread_create")) - goto done; - - /* recv total_bytes */ - while (bytes < total_bytes && !READ_ONCE(stop)) { - nr_recv = recv(fd, &batch, - MIN(total_bytes - bytes, sizeof(batch)), 0); - if (nr_recv == -1 && errno == EINTR) - continue; - if (nr_recv == -1) - break; - bytes += nr_recv; - } - - ASSERT_EQ(bytes, total_bytes, "recv"); - - WRITE_ONCE(stop, 1); - pthread_join(srv_thread, &thread_ret); - ASSERT_OK(IS_ERR(thread_ret), "thread_ret"); + ASSERT_OK(send_recv_data(lfd, fd, total_bytes), "send_recv_data"); done: close(lfd); @@ -315,7 +230,7 @@ static void test_rel_setsockopt(void) struct bpf_dctcp_release *rel_skel; libbpf_print_fn_t old_print_fn; - err_str = "unknown func bpf_setsockopt"; + err_str = "program of this type cannot use helper bpf_setsockopt"; found = false; old_print_fn = libbpf_set_print(libbpf_debug_print); @@ -529,6 +444,36 @@ static void test_link_replace(void) tcp_ca_update__destroy(skel); } +static void test_tcp_ca_kfunc(void) +{ + struct tcp_ca_kfunc *skel; + + skel = tcp_ca_kfunc__open_and_load(); + ASSERT_OK_PTR(skel, "tcp_ca_kfunc__open_and_load"); + tcp_ca_kfunc__destroy(skel); +} + +static void test_cc_cubic(void) +{ + struct bpf_cc_cubic *cc_cubic_skel; + struct bpf_link *link; + + cc_cubic_skel = bpf_cc_cubic__open_and_load(); + if (!ASSERT_OK_PTR(cc_cubic_skel, "bpf_cc_cubic__open_and_load")) + return; + + link = bpf_map__attach_struct_ops(cc_cubic_skel->maps.cc_cubic); + if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) { + bpf_cc_cubic__destroy(cc_cubic_skel); + return; + } + + do_test("bpf_cc_cubic", NULL); + + bpf_link__destroy(link); + bpf_cc_cubic__destroy(cc_cubic_skel); +} + void test_bpf_tcp_ca(void) { if (test__start_subtest("dctcp")) @@ -557,4 +502,8 @@ void test_bpf_tcp_ca(void) test_multi_links(); if (test__start_subtest("link_replace")) test_link_replace(); + if (test__start_subtest("tcp_ca_kfunc")) + test_tcp_ca_kfunc(); + if (test__start_subtest("cc_cubic")) + test_cc_cubic(); } diff --git a/tools/testing/selftests/bpf/prog_tests/btf_map_in_map.c b/tools/testing/selftests/bpf/prog_tests/btf_map_in_map.c index a8b53b8736f0..f66ceccd7029 100644 --- a/tools/testing/selftests/bpf/prog_tests/btf_map_in_map.c +++ b/tools/testing/selftests/bpf/prog_tests/btf_map_in_map.c @@ -25,7 +25,7 @@ static void test_lookup_update(void) int map1_fd, map2_fd, map3_fd, map4_fd, map5_fd, map1_id, map2_id; int outer_arr_fd, outer_hash_fd, outer_arr_dyn_fd; struct test_btf_map_in_map *skel; - int err, key = 0, val, i, fd; + int err, key = 0, val, i; skel = test_btf_map_in_map__open_and_load(); if (CHECK(!skel, "skel_open", "failed to open&load skeleton\n")) @@ -102,30 +102,6 @@ static void test_lookup_update(void) CHECK(map1_id == 0, "map1_id", "failed to get ID 1\n"); CHECK(map2_id == 0, "map2_id", "failed to get ID 2\n"); - test_btf_map_in_map__destroy(skel); - skel = NULL; - - /* we need to either wait for or force synchronize_rcu(), before - * checking for "still exists" condition, otherwise map could still be - * resolvable by ID, causing false positives. - * - * Older kernels (5.8 and earlier) freed map only after two - * synchronize_rcu()s, so trigger two, to be entirely sure. - */ - CHECK(kern_sync_rcu(), "sync_rcu", "failed\n"); - CHECK(kern_sync_rcu(), "sync_rcu", "failed\n"); - - fd = bpf_map_get_fd_by_id(map1_id); - if (CHECK(fd >= 0, "map1_leak", "inner_map1 leaked!\n")) { - close(fd); - goto cleanup; - } - fd = bpf_map_get_fd_by_id(map2_id); - if (CHECK(fd >= 0, "map2_leak", "inner_map2 leaked!\n")) { - close(fd); - goto cleanup; - } - cleanup: test_btf_map_in_map__destroy(skel); } diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup1_hierarchy.c b/tools/testing/selftests/bpf/prog_tests/cgroup1_hierarchy.c index 74d6d7546f40..25332e596750 100644 --- a/tools/testing/selftests/bpf/prog_tests/cgroup1_hierarchy.c +++ b/tools/testing/selftests/bpf/prog_tests/cgroup1_hierarchy.c @@ -87,9 +87,12 @@ void test_cgroup1_hierarchy(void) goto destroy; /* Setup cgroup1 hierarchy */ + err = setup_cgroup_environment(); + if (!ASSERT_OK(err, "setup_cgroup_environment")) + goto destroy; err = setup_classid_environment(); if (!ASSERT_OK(err, "setup_classid_environment")) - goto destroy; + goto cleanup_cgroup; err = join_classid(); if (!ASSERT_OK(err, "join_cgroup1")) @@ -153,6 +156,8 @@ void test_cgroup1_hierarchy(void) cleanup: cleanup_classid_environment(); +cleanup_cgroup: + cleanup_cgroup_environment(); destroy: test_cgroup1_hierarchy__destroy(skel); } diff --git a/tools/testing/selftests/bpf/prog_tests/cls_redirect.c b/tools/testing/selftests/bpf/prog_tests/cls_redirect.c index 2a55f717fc07..34b59f6baca1 100644 --- a/tools/testing/selftests/bpf/prog_tests/cls_redirect.c +++ b/tools/testing/selftests/bpf/prog_tests/cls_redirect.c @@ -10,6 +10,7 @@ #include <netinet/tcp.h> #include <test_progs.h> +#include "network_helpers.h" #include "progs/test_cls_redirect.h" #include "test_cls_redirect.skel.h" @@ -35,39 +36,6 @@ struct tuple { struct addr_port dst; }; -static int start_server(const struct sockaddr *addr, socklen_t len, int type) -{ - int fd = socket(addr->sa_family, type, 0); - if (CHECK_FAIL(fd == -1)) - return -1; - if (CHECK_FAIL(bind(fd, addr, len) == -1)) - goto err; - if (type == SOCK_STREAM && CHECK_FAIL(listen(fd, 128) == -1)) - goto err; - - return fd; - -err: - close(fd); - return -1; -} - -static int connect_to_server(const struct sockaddr *addr, socklen_t len, - int type) -{ - int fd = socket(addr->sa_family, type, 0); - if (CHECK_FAIL(fd == -1)) - return -1; - if (CHECK_FAIL(connect(fd, addr, len))) - goto err; - - return fd; - -err: - close(fd); - return -1; -} - static bool fill_addr_port(const struct sockaddr *sa, struct addr_port *ap) { const struct sockaddr_in6 *in6; @@ -98,14 +66,14 @@ static bool set_up_conn(const struct sockaddr *addr, socklen_t len, int type, socklen_t slen = sizeof(ss); struct sockaddr *sa = (struct sockaddr *)&ss; - *server = start_server(addr, len, type); + *server = start_server_addr(type, (struct sockaddr_storage *)addr, len, NULL); if (*server < 0) return false; if (CHECK_FAIL(getsockname(*server, sa, &slen))) goto close_server; - *conn = connect_to_server(sa, slen, type); + *conn = connect_to_addr(type, (struct sockaddr_storage *)sa, slen, NULL); if (*conn < 0) goto close_server; diff --git a/tools/testing/selftests/bpf/prog_tests/crypto_sanity.c b/tools/testing/selftests/bpf/prog_tests/crypto_sanity.c new file mode 100644 index 000000000000..b1a3a49a822a --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/crypto_sanity.c @@ -0,0 +1,197 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ + +#include <sys/types.h> +#include <sys/socket.h> +#include <net/if.h> +#include <linux/in6.h> +#include <linux/if_alg.h> + +#include "test_progs.h" +#include "network_helpers.h" +#include "crypto_sanity.skel.h" +#include "crypto_basic.skel.h" + +#define NS_TEST "crypto_sanity_ns" +#define IPV6_IFACE_ADDR "face::1" +static const unsigned char crypto_key[] = "testtest12345678"; +static const char plain_text[] = "stringtoencrypt0"; +static int opfd = -1, tfmfd = -1; +static const char algo[] = "ecb(aes)"; +static int init_afalg(void) +{ + struct sockaddr_alg sa = { + .salg_family = AF_ALG, + .salg_type = "skcipher", + .salg_name = "ecb(aes)" + }; + + tfmfd = socket(AF_ALG, SOCK_SEQPACKET, 0); + if (tfmfd == -1) + return errno; + if (bind(tfmfd, (struct sockaddr *)&sa, sizeof(sa)) == -1) + return errno; + if (setsockopt(tfmfd, SOL_ALG, ALG_SET_KEY, crypto_key, 16) == -1) + return errno; + opfd = accept(tfmfd, NULL, 0); + if (opfd == -1) + return errno; + return 0; +} + +static void deinit_afalg(void) +{ + if (tfmfd != -1) + close(tfmfd); + if (opfd != -1) + close(opfd); +} + +static void do_crypt_afalg(const void *src, void *dst, int size, bool encrypt) +{ + struct msghdr msg = {}; + struct cmsghdr *cmsg; + char cbuf[CMSG_SPACE(4)] = {0}; + struct iovec iov; + + msg.msg_control = cbuf; + msg.msg_controllen = sizeof(cbuf); + + cmsg = CMSG_FIRSTHDR(&msg); + cmsg->cmsg_level = SOL_ALG; + cmsg->cmsg_type = ALG_SET_OP; + cmsg->cmsg_len = CMSG_LEN(4); + *(__u32 *)CMSG_DATA(cmsg) = encrypt ? ALG_OP_ENCRYPT : ALG_OP_DECRYPT; + + iov.iov_base = (char *)src; + iov.iov_len = size; + + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + + sendmsg(opfd, &msg, 0); + read(opfd, dst, size); +} + +void test_crypto_basic(void) +{ + RUN_TESTS(crypto_basic); +} + +void test_crypto_sanity(void) +{ + LIBBPF_OPTS(bpf_tc_hook, qdisc_hook, .attach_point = BPF_TC_EGRESS); + LIBBPF_OPTS(bpf_tc_opts, tc_attach_enc); + LIBBPF_OPTS(bpf_tc_opts, tc_attach_dec); + LIBBPF_OPTS(bpf_test_run_opts, opts); + struct nstoken *nstoken = NULL; + struct crypto_sanity *skel; + char afalg_plain[16] = {0}; + char afalg_dst[16] = {0}; + struct sockaddr_in6 addr; + int sockfd, err, pfd; + socklen_t addrlen; + u16 udp_test_port; + + skel = crypto_sanity__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel open")) + return; + + SYS(fail, "ip netns add %s", NS_TEST); + SYS(fail, "ip -net %s -6 addr add %s/128 dev lo nodad", NS_TEST, IPV6_IFACE_ADDR); + SYS(fail, "ip -net %s link set dev lo up", NS_TEST); + + nstoken = open_netns(NS_TEST); + if (!ASSERT_OK_PTR(nstoken, "open_netns")) + goto fail; + + err = init_afalg(); + if (!ASSERT_OK(err, "AF_ALG init fail")) + goto fail; + + qdisc_hook.ifindex = if_nametoindex("lo"); + if (!ASSERT_GT(qdisc_hook.ifindex, 0, "if_nametoindex lo")) + goto fail; + + skel->bss->key_len = 16; + skel->bss->authsize = 0; + udp_test_port = skel->data->udp_test_port; + memcpy(skel->bss->key, crypto_key, sizeof(crypto_key)); + snprintf(skel->bss->algo, 128, "%s", algo); + pfd = bpf_program__fd(skel->progs.skb_crypto_setup); + if (!ASSERT_GT(pfd, 0, "skb_crypto_setup fd")) + goto fail; + + err = bpf_prog_test_run_opts(pfd, &opts); + if (!ASSERT_OK(err, "skb_crypto_setup") || + !ASSERT_OK(opts.retval, "skb_crypto_setup retval")) + goto fail; + + if (!ASSERT_OK(skel->bss->status, "skb_crypto_setup status")) + goto fail; + + err = bpf_tc_hook_create(&qdisc_hook); + if (!ASSERT_OK(err, "create qdisc hook")) + goto fail; + + addrlen = sizeof(addr); + err = make_sockaddr(AF_INET6, IPV6_IFACE_ADDR, udp_test_port, + (void *)&addr, &addrlen); + if (!ASSERT_OK(err, "make_sockaddr")) + goto fail; + + tc_attach_enc.prog_fd = bpf_program__fd(skel->progs.encrypt_sanity); + err = bpf_tc_attach(&qdisc_hook, &tc_attach_enc); + if (!ASSERT_OK(err, "attach encrypt filter")) + goto fail; + + sockfd = socket(AF_INET6, SOCK_DGRAM, 0); + if (!ASSERT_NEQ(sockfd, -1, "encrypt socket")) + goto fail; + err = sendto(sockfd, plain_text, sizeof(plain_text), 0, (void *)&addr, addrlen); + close(sockfd); + if (!ASSERT_EQ(err, sizeof(plain_text), "encrypt send")) + goto fail; + + do_crypt_afalg(plain_text, afalg_dst, sizeof(afalg_dst), true); + + if (!ASSERT_OK(skel->bss->status, "encrypt status")) + goto fail; + if (!ASSERT_STRNEQ(skel->bss->dst, afalg_dst, sizeof(afalg_dst), "encrypt AF_ALG")) + goto fail; + + tc_attach_enc.flags = tc_attach_enc.prog_fd = tc_attach_enc.prog_id = 0; + err = bpf_tc_detach(&qdisc_hook, &tc_attach_enc); + if (!ASSERT_OK(err, "bpf_tc_detach encrypt")) + goto fail; + + tc_attach_dec.prog_fd = bpf_program__fd(skel->progs.decrypt_sanity); + err = bpf_tc_attach(&qdisc_hook, &tc_attach_dec); + if (!ASSERT_OK(err, "attach decrypt filter")) + goto fail; + + sockfd = socket(AF_INET6, SOCK_DGRAM, 0); + if (!ASSERT_NEQ(sockfd, -1, "decrypt socket")) + goto fail; + err = sendto(sockfd, afalg_dst, sizeof(afalg_dst), 0, (void *)&addr, addrlen); + close(sockfd); + if (!ASSERT_EQ(err, sizeof(afalg_dst), "decrypt send")) + goto fail; + + do_crypt_afalg(afalg_dst, afalg_plain, sizeof(afalg_plain), false); + + if (!ASSERT_OK(skel->bss->status, "decrypt status")) + goto fail; + if (!ASSERT_STRNEQ(skel->bss->dst, afalg_plain, sizeof(afalg_plain), "decrypt AF_ALG")) + goto fail; + + tc_attach_dec.flags = tc_attach_dec.prog_fd = tc_attach_dec.prog_id = 0; + err = bpf_tc_detach(&qdisc_hook, &tc_attach_dec); + ASSERT_OK(err, "bpf_tc_detach decrypt"); + +fail: + close_netns(nstoken); + deinit_afalg(); + SYS_NOFAIL("ip netns del " NS_TEST " &> /dev/null"); + crypto_sanity__destroy(skel); +} diff --git a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c index f43fcb13d2c4..d3d94596ab79 100644 --- a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c +++ b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c @@ -98,7 +98,8 @@ done: static void test_dummy_multiple_args(void) { - __u64 args[5] = {0, -100, 0x8a5f, 'c', 0x1234567887654321ULL}; + struct bpf_dummy_ops_state st = { 7 }; + __u64 args[5] = {(__u64)&st, -100, 0x8a5f, 'c', 0x1234567887654321ULL}; LIBBPF_OPTS(bpf_test_run_opts, attr, .ctx_in = args, .ctx_size_in = sizeof(args), @@ -115,6 +116,7 @@ static void test_dummy_multiple_args(void) fd = bpf_program__fd(skel->progs.test_2); err = bpf_prog_test_run_opts(fd, &attr); ASSERT_OK(err, "test_run"); + args[0] = 7; for (i = 0; i < ARRAY_SIZE(args); i++) { snprintf(name, sizeof(name), "arg %zu", i); ASSERT_EQ(skel->bss->test_2_args[i], args[i], name); @@ -125,7 +127,8 @@ static void test_dummy_multiple_args(void) static void test_dummy_sleepable(void) { - __u64 args[1] = {0}; + struct bpf_dummy_ops_state st; + __u64 args[1] = {(__u64)&st}; LIBBPF_OPTS(bpf_test_run_opts, attr, .ctx_in = args, .ctx_size_in = sizeof(args), @@ -144,6 +147,31 @@ static void test_dummy_sleepable(void) dummy_st_ops_success__destroy(skel); } +/* dummy_st_ops.test_sleepable() parameter is not marked as nullable, + * thus bpf_prog_test_run_opts() below should be rejected as it tries + * to pass NULL for this parameter. + */ +static void test_dummy_sleepable_reject_null(void) +{ + __u64 args[1] = {0}; + LIBBPF_OPTS(bpf_test_run_opts, attr, + .ctx_in = args, + .ctx_size_in = sizeof(args), + ); + struct dummy_st_ops_success *skel; + int fd, err; + + skel = dummy_st_ops_success__open_and_load(); + if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load")) + return; + + fd = bpf_program__fd(skel->progs.test_sleepable); + err = bpf_prog_test_run_opts(fd, &attr); + ASSERT_EQ(err, -EINVAL, "test_run"); + + dummy_st_ops_success__destroy(skel); +} + void test_dummy_st_ops(void) { if (test__start_subtest("dummy_st_ops_attach")) @@ -156,6 +184,8 @@ void test_dummy_st_ops(void) test_dummy_multiple_args(); if (test__start_subtest("dummy_sleepable")) test_dummy_sleepable(); + if (test__start_subtest("dummy_sleepable_reject_null")) + test_dummy_sleepable_reject_null(); RUN_TESTS(dummy_st_ops_fail); } diff --git a/tools/testing/selftests/bpf/prog_tests/empty_skb.c b/tools/testing/selftests/bpf/prog_tests/empty_skb.c index 261228eb68e8..438583e1f2d1 100644 --- a/tools/testing/selftests/bpf/prog_tests/empty_skb.c +++ b/tools/testing/selftests/bpf/prog_tests/empty_skb.c @@ -94,6 +94,8 @@ void test_empty_skb(void) SYS(out, "ip netns add empty_skb"); tok = open_netns("empty_skb"); + if (!ASSERT_OK_PTR(tok, "setns")) + goto out; SYS(out, "ip link add veth0 type veth peer veth1"); SYS(out, "ip link set dev veth0 up"); SYS(out, "ip link set dev veth1 up"); diff --git a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c index 3379df2d4cf2..bd7658958004 100644 --- a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c +++ b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c @@ -26,6 +26,17 @@ #define IPV6_TBID_ADDR "fd00::FFFF" #define IPV6_TBID_NET "fd00::" #define IPV6_TBID_DST "fd00::2" +#define MARK_NO_POLICY 33 +#define MARK 42 +#define MARK_TABLE "200" +#define IPV4_REMOTE_DST "1.2.3.4" +#define IPV4_LOCAL "10.4.0.3" +#define IPV4_GW1 "10.4.0.1" +#define IPV4_GW2 "10.4.0.2" +#define IPV6_REMOTE_DST "be:ef::b0:10" +#define IPV6_LOCAL "fd01::3" +#define IPV6_GW1 "fd01::1" +#define IPV6_GW2 "fd01::2" #define DMAC "11:11:11:11:11:11" #define DMAC_INIT { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, } #define DMAC2 "01:01:01:01:01:01" @@ -36,9 +47,11 @@ struct fib_lookup_test { const char *daddr; int expected_ret; const char *expected_src; + const char *expected_dst; int lookup_flags; __u32 tbid; __u8 dmac[6]; + __u32 mark; }; static const struct fib_lookup_test tests[] = { @@ -90,10 +103,47 @@ static const struct fib_lookup_test tests[] = { .daddr = IPV6_ADDR_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, .expected_src = IPV6_IFACE_ADDR_SEC, .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + /* policy routing */ + { .desc = "IPv4 policy routing, default", + .daddr = IPV4_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_dst = IPV4_GW1, + .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + { .desc = "IPv4 policy routing, mark doesn't point to a policy", + .daddr = IPV4_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_dst = IPV4_GW1, + .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH, + .mark = MARK_NO_POLICY, }, + { .desc = "IPv4 policy routing, mark points to a policy", + .daddr = IPV4_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_dst = IPV4_GW2, + .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH, + .mark = MARK, }, + { .desc = "IPv4 policy routing, mark points to a policy, but no flag", + .daddr = IPV4_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_dst = IPV4_GW1, + .lookup_flags = BPF_FIB_LOOKUP_SKIP_NEIGH, + .mark = MARK, }, + { .desc = "IPv6 policy routing, default", + .daddr = IPV6_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_dst = IPV6_GW1, + .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + { .desc = "IPv6 policy routing, mark doesn't point to a policy", + .daddr = IPV6_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_dst = IPV6_GW1, + .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH, + .mark = MARK_NO_POLICY, }, + { .desc = "IPv6 policy routing, mark points to a policy", + .daddr = IPV6_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_dst = IPV6_GW2, + .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH, + .mark = MARK, }, + { .desc = "IPv6 policy routing, mark points to a policy, but no flag", + .daddr = IPV6_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_dst = IPV6_GW1, + .lookup_flags = BPF_FIB_LOOKUP_SKIP_NEIGH, + .mark = MARK, }, }; -static int ifindex; - static int setup_netns(void) { int err; @@ -144,12 +194,24 @@ static int setup_netns(void) if (!ASSERT_OK(err, "write_sysctl(net.ipv6.conf.veth1.forwarding)")) goto fail; + /* Setup for policy routing tests */ + SYS(fail, "ip addr add %s/24 dev veth1", IPV4_LOCAL); + SYS(fail, "ip addr add %s/64 dev veth1 nodad", IPV6_LOCAL); + SYS(fail, "ip route add %s/32 via %s", IPV4_REMOTE_DST, IPV4_GW1); + SYS(fail, "ip route add %s/32 via %s table %s", IPV4_REMOTE_DST, IPV4_GW2, MARK_TABLE); + SYS(fail, "ip -6 route add %s/128 via %s", IPV6_REMOTE_DST, IPV6_GW1); + SYS(fail, "ip -6 route add %s/128 via %s table %s", IPV6_REMOTE_DST, IPV6_GW2, MARK_TABLE); + SYS(fail, "ip rule add prio 2 fwmark %d lookup %s", MARK, MARK_TABLE); + SYS(fail, "ip -6 rule add prio 2 fwmark %d lookup %s", MARK, MARK_TABLE); + return 0; fail: return -1; } -static int set_lookup_params(struct bpf_fib_lookup *params, const struct fib_lookup_test *test) +static int set_lookup_params(struct bpf_fib_lookup *params, + const struct fib_lookup_test *test, + int ifindex) { int ret; @@ -158,6 +220,7 @@ static int set_lookup_params(struct bpf_fib_lookup *params, const struct fib_loo params->l4_protocol = IPPROTO_TCP; params->ifindex = ifindex; params->tbid = test->tbid; + params->mark = test->mark; if (inet_pton(AF_INET6, test->daddr, params->ipv6_dst) == 1) { params->family = AF_INET6; @@ -190,40 +253,45 @@ static void mac_str(char *b, const __u8 *mac) mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); } -static void assert_src_ip(struct bpf_fib_lookup *fib_params, const char *expected_src) +static void assert_ip_address(int family, void *addr, const char *expected_str) { + char str[INET6_ADDRSTRLEN]; + u8 expected_addr[16]; + int addr_len = 0; int ret; - __u32 src6[4]; - __be32 src4; - switch (fib_params->family) { + switch (family) { case AF_INET6: - ret = inet_pton(AF_INET6, expected_src, src6); - ASSERT_EQ(ret, 1, "inet_pton(expected_src)"); - - ret = memcmp(src6, fib_params->ipv6_src, sizeof(fib_params->ipv6_src)); - if (!ASSERT_EQ(ret, 0, "fib_lookup ipv6 src")) { - char str_src6[64]; - - inet_ntop(AF_INET6, fib_params->ipv6_src, str_src6, - sizeof(str_src6)); - printf("ipv6 expected %s actual %s ", expected_src, - str_src6); - } - + ret = inet_pton(AF_INET6, expected_str, expected_addr); + ASSERT_EQ(ret, 1, "inet_pton(AF_INET6, expected_str)"); + addr_len = 16; break; case AF_INET: - ret = inet_pton(AF_INET, expected_src, &src4); - ASSERT_EQ(ret, 1, "inet_pton(expected_src)"); - - ASSERT_EQ(fib_params->ipv4_src, src4, "fib_lookup ipv4 src"); - + ret = inet_pton(AF_INET, expected_str, expected_addr); + ASSERT_EQ(ret, 1, "inet_pton(AF_INET, expected_str)"); + addr_len = 4; break; default: - PRINT_FAIL("invalid addr family: %d", fib_params->family); + PRINT_FAIL("invalid address family: %d", family); + break; + } + + if (memcmp(addr, expected_addr, addr_len)) { + inet_ntop(family, addr, str, sizeof(str)); + PRINT_FAIL("expected %s actual %s ", expected_str, str); } } +static void assert_src_ip(struct bpf_fib_lookup *params, const char *expected) +{ + assert_ip_address(params->family, params->ipv6_src, expected); +} + +static void assert_dst_ip(struct bpf_fib_lookup *params, const char *expected) +{ + assert_ip_address(params->family, params->ipv6_dst, expected); +} + void test_fib_lookup(void) { struct bpf_fib_lookup *fib_params; @@ -256,15 +324,18 @@ void test_fib_lookup(void) if (setup_netns()) goto fail; - ifindex = if_nametoindex("veth1"); - skb.ifindex = ifindex; + skb.ifindex = if_nametoindex("veth1"); + if (!ASSERT_NEQ(skb.ifindex, 0, "if_nametoindex(veth1)")) + goto fail; + fib_params = &skel->bss->fib_params; for (i = 0; i < ARRAY_SIZE(tests); i++) { printf("Testing %s ", tests[i].desc); - if (set_lookup_params(fib_params, &tests[i])) + if (set_lookup_params(fib_params, &tests[i], skb.ifindex)) continue; + skel->bss->fib_lookup_ret = -1; skel->bss->lookup_flags = tests[i].lookup_flags; @@ -278,6 +349,9 @@ void test_fib_lookup(void) if (tests[i].expected_src) assert_src_ip(fib_params, tests[i].expected_src); + if (tests[i].expected_dst) + assert_dst_ip(fib_params, tests[i].expected_dst); + ret = memcmp(tests[i].dmac, fib_params->dmac, sizeof(tests[i].dmac)); if (!ASSERT_EQ(ret, 0, "dmac not match")) { char expected[18], actual[18]; diff --git a/tools/testing/selftests/bpf/prog_tests/flow_dissector.c b/tools/testing/selftests/bpf/prog_tests/flow_dissector.c index c4773173a4e4..9e5f38739104 100644 --- a/tools/testing/selftests/bpf/prog_tests/flow_dissector.c +++ b/tools/testing/selftests/bpf/prog_tests/flow_dissector.c @@ -2,7 +2,6 @@ #include <test_progs.h> #include <network_helpers.h> #include <error.h> -#include <linux/if.h> #include <linux/if_tun.h> #include <sys/uio.h> diff --git a/tools/testing/selftests/bpf/prog_tests/for_each.c b/tools/testing/selftests/bpf/prog_tests/for_each.c index 8963f8a549f2..09f6487f58b9 100644 --- a/tools/testing/selftests/bpf/prog_tests/for_each.c +++ b/tools/testing/selftests/bpf/prog_tests/for_each.c @@ -5,6 +5,7 @@ #include "for_each_hash_map_elem.skel.h" #include "for_each_array_map_elem.skel.h" #include "for_each_map_elem_write_key.skel.h" +#include "for_each_multi_maps.skel.h" static unsigned int duration; @@ -143,6 +144,65 @@ static void test_write_map_key(void) for_each_map_elem_write_key__destroy(skel); } +static void test_multi_maps(void) +{ + struct for_each_multi_maps *skel; + __u64 val, array_total, hash_total; + __u32 key, max_entries; + int i, err; + + LIBBPF_OPTS(bpf_test_run_opts, topts, + .data_in = &pkt_v4, + .data_size_in = sizeof(pkt_v4), + .repeat = 1, + ); + + skel = for_each_multi_maps__open_and_load(); + if (!ASSERT_OK_PTR(skel, "for_each_multi_maps__open_and_load")) + return; + + array_total = 0; + max_entries = bpf_map__max_entries(skel->maps.arraymap); + for (i = 0; i < max_entries; i++) { + key = i; + val = i + 1; + array_total += val; + err = bpf_map__update_elem(skel->maps.arraymap, &key, sizeof(key), + &val, sizeof(val), BPF_ANY); + if (!ASSERT_OK(err, "array_map_update")) + goto out; + } + + hash_total = 0; + max_entries = bpf_map__max_entries(skel->maps.hashmap); + for (i = 0; i < max_entries; i++) { + key = i + 100; + val = i + 1; + hash_total += val; + err = bpf_map__update_elem(skel->maps.hashmap, &key, sizeof(key), + &val, sizeof(val), BPF_ANY); + if (!ASSERT_OK(err, "hash_map_update")) + goto out; + } + + skel->bss->data_output = 0; + skel->bss->use_array = 1; + err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_pkt_access), &topts); + ASSERT_OK(err, "bpf_prog_test_run_opts"); + ASSERT_OK(topts.retval, "retval"); + ASSERT_EQ(skel->bss->data_output, array_total, "array output"); + + skel->bss->data_output = 0; + skel->bss->use_array = 0; + err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_pkt_access), &topts); + ASSERT_OK(err, "bpf_prog_test_run_opts"); + ASSERT_OK(topts.retval, "retval"); + ASSERT_EQ(skel->bss->data_output, hash_total, "hash output"); + +out: + for_each_multi_maps__destroy(skel); +} + void test_for_each(void) { if (test__start_subtest("hash_map")) @@ -151,4 +211,6 @@ void test_for_each(void) test_array_map(); if (test__start_subtest("write_map_key")) test_write_map_key(); + if (test__start_subtest("multi_maps")) + test_multi_maps(); } diff --git a/tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c b/tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c index 8dd2af9081f4..284764e7179f 100644 --- a/tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c +++ b/tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c @@ -88,6 +88,8 @@ static int attach(struct ip_check_defrag *skel, bool ipv6) int err = -1; nstoken = open_netns(NS1); + if (!ASSERT_OK_PTR(nstoken, "setns")) + goto out; skel->links.defrag = bpf_program__attach_netfilter(skel->progs.defrag, &opts); if (!ASSERT_OK_PTR(skel->links.defrag, "program attach")) diff --git a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c index 05000810e28e..960c9323d1e0 100644 --- a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c +++ b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c @@ -4,6 +4,8 @@ #include "trace_helpers.h" #include "kprobe_multi_empty.skel.h" #include "kprobe_multi_override.skel.h" +#include "kprobe_multi_session.skel.h" +#include "kprobe_multi_session_cookie.skel.h" #include "bpf/libbpf_internal.h" #include "bpf/hashmap.h" @@ -326,6 +328,74 @@ cleanup: kprobe_multi__destroy(skel); } +static void test_session_skel_api(void) +{ + struct kprobe_multi_session *skel = NULL; + LIBBPF_OPTS(bpf_kprobe_multi_opts, opts); + LIBBPF_OPTS(bpf_test_run_opts, topts); + struct bpf_link *link = NULL; + int i, err, prog_fd; + + skel = kprobe_multi_session__open_and_load(); + if (!ASSERT_OK_PTR(skel, "kprobe_multi_session__open_and_load")) + return; + + skel->bss->pid = getpid(); + + err = kprobe_multi_session__attach(skel); + if (!ASSERT_OK(err, " kprobe_multi_session__attach")) + goto cleanup; + + prog_fd = bpf_program__fd(skel->progs.trigger); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(topts.retval, 0, "test_run"); + + /* bpf_fentry_test1-4 trigger return probe, result is 2 */ + for (i = 0; i < 4; i++) + ASSERT_EQ(skel->bss->kprobe_session_result[i], 2, "kprobe_session_result"); + + /* bpf_fentry_test5-8 trigger only entry probe, result is 1 */ + for (i = 4; i < 8; i++) + ASSERT_EQ(skel->bss->kprobe_session_result[i], 1, "kprobe_session_result"); + +cleanup: + bpf_link__destroy(link); + kprobe_multi_session__destroy(skel); +} + +static void test_session_cookie_skel_api(void) +{ + struct kprobe_multi_session_cookie *skel = NULL; + LIBBPF_OPTS(bpf_kprobe_multi_opts, opts); + LIBBPF_OPTS(bpf_test_run_opts, topts); + struct bpf_link *link = NULL; + int err, prog_fd; + + skel = kprobe_multi_session_cookie__open_and_load(); + if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load")) + return; + + skel->bss->pid = getpid(); + + err = kprobe_multi_session_cookie__attach(skel); + if (!ASSERT_OK(err, " kprobe_multi_wrapper__attach")) + goto cleanup; + + prog_fd = bpf_program__fd(skel->progs.trigger); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(topts.retval, 0, "test_run"); + + ASSERT_EQ(skel->bss->test_kprobe_1_result, 1, "test_kprobe_1_result"); + ASSERT_EQ(skel->bss->test_kprobe_2_result, 2, "test_kprobe_2_result"); + ASSERT_EQ(skel->bss->test_kprobe_3_result, 3, "test_kprobe_3_result"); + +cleanup: + bpf_link__destroy(link); + kprobe_multi_session_cookie__destroy(skel); +} + static size_t symbol_hash(long key, void *ctx __maybe_unused) { return str_hash((const char *) key); @@ -336,15 +406,80 @@ static bool symbol_equal(long key1, long key2, void *ctx __maybe_unused) return strcmp((const char *) key1, (const char *) key2) == 0; } +static bool is_invalid_entry(char *buf, bool kernel) +{ + if (kernel && strchr(buf, '[')) + return true; + if (!kernel && !strchr(buf, '[')) + return true; + return false; +} + +static bool skip_entry(char *name) +{ + /* + * We attach to almost all kernel functions and some of them + * will cause 'suspicious RCU usage' when fprobe is attached + * to them. Filter out the current culprits - arch_cpu_idle + * default_idle and rcu_* functions. + */ + if (!strcmp(name, "arch_cpu_idle")) + return true; + if (!strcmp(name, "default_idle")) + return true; + if (!strncmp(name, "rcu_", 4)) + return true; + if (!strcmp(name, "bpf_dispatcher_xdp_func")) + return true; + if (!strncmp(name, "__ftrace_invalid_address__", + sizeof("__ftrace_invalid_address__") - 1)) + return true; + return false; +} + +/* Do comparision by ignoring '.llvm.<hash>' suffixes. */ +static int compare_name(const char *name1, const char *name2) +{ + const char *res1, *res2; + int len1, len2; + + res1 = strstr(name1, ".llvm."); + res2 = strstr(name2, ".llvm."); + len1 = res1 ? res1 - name1 : strlen(name1); + len2 = res2 ? res2 - name2 : strlen(name2); + + if (len1 == len2) + return strncmp(name1, name2, len1); + if (len1 < len2) + return strncmp(name1, name2, len1) <= 0 ? -1 : 1; + return strncmp(name1, name2, len2) >= 0 ? 1 : -1; +} + +static int load_kallsyms_compare(const void *p1, const void *p2) +{ + return compare_name(((const struct ksym *)p1)->name, ((const struct ksym *)p2)->name); +} + +static int search_kallsyms_compare(const void *p1, const struct ksym *p2) +{ + return compare_name(p1, p2->name); +} + static int get_syms(char ***symsp, size_t *cntp, bool kernel) { - size_t cap = 0, cnt = 0, i; - char *name = NULL, **syms = NULL; + size_t cap = 0, cnt = 0; + char *name = NULL, *ksym_name, **syms = NULL; struct hashmap *map; + struct ksyms *ksyms; + struct ksym *ks; char buf[256]; FILE *f; int err = 0; + ksyms = load_kallsyms_custom_local(load_kallsyms_compare); + if (!ASSERT_OK_PTR(ksyms, "load_kallsyms_custom_local")) + return -EINVAL; + /* * The available_filter_functions contains many duplicates, * but other than that all symbols are usable in kprobe multi @@ -368,33 +503,23 @@ static int get_syms(char ***symsp, size_t *cntp, bool kernel) } while (fgets(buf, sizeof(buf), f)) { - if (kernel && strchr(buf, '[')) - continue; - if (!kernel && !strchr(buf, '[')) + if (is_invalid_entry(buf, kernel)) continue; free(name); if (sscanf(buf, "%ms$*[^\n]\n", &name) != 1) continue; - /* - * We attach to almost all kernel functions and some of them - * will cause 'suspicious RCU usage' when fprobe is attached - * to them. Filter out the current culprits - arch_cpu_idle - * default_idle and rcu_* functions. - */ - if (!strcmp(name, "arch_cpu_idle")) - continue; - if (!strcmp(name, "default_idle")) - continue; - if (!strncmp(name, "rcu_", 4)) - continue; - if (!strcmp(name, "bpf_dispatcher_xdp_func")) - continue; - if (!strncmp(name, "__ftrace_invalid_address__", - sizeof("__ftrace_invalid_address__") - 1)) + if (skip_entry(name)) continue; - err = hashmap__add(map, name, 0); + ks = search_kallsyms_custom_local(ksyms, name, search_kallsyms_compare); + if (!ks) { + err = -EINVAL; + goto error; + } + + ksym_name = ks->name; + err = hashmap__add(map, ksym_name, 0); if (err == -EEXIST) { err = 0; continue; @@ -407,8 +532,7 @@ static int get_syms(char ***symsp, size_t *cntp, bool kernel) if (err) goto error; - syms[cnt++] = name; - name = NULL; + syms[cnt++] = ksym_name; } *symsp = syms; @@ -418,42 +542,88 @@ error: free(name); fclose(f); hashmap__free(map); - if (err) { - for (i = 0; i < cnt; i++) - free(syms[i]); + if (err) free(syms); + return err; +} + +static int get_addrs(unsigned long **addrsp, size_t *cntp, bool kernel) +{ + unsigned long *addr, *addrs, *tmp_addrs; + int err = 0, max_cnt, inc_cnt; + char *name = NULL; + size_t cnt = 0; + char buf[256]; + FILE *f; + + if (access("/sys/kernel/tracing/trace", F_OK) == 0) + f = fopen("/sys/kernel/tracing/available_filter_functions_addrs", "r"); + else + f = fopen("/sys/kernel/debug/tracing/available_filter_functions_addrs", "r"); + + if (!f) + return -ENOENT; + + /* In my local setup, the number of entries is 50k+ so Let us initially + * allocate space to hold 64k entries. If 64k is not enough, incrementally + * increase 1k each time. + */ + max_cnt = 65536; + inc_cnt = 1024; + addrs = malloc(max_cnt * sizeof(long)); + if (addrs == NULL) { + err = -ENOMEM; + goto error; + } + + while (fgets(buf, sizeof(buf), f)) { + if (is_invalid_entry(buf, kernel)) + continue; + + free(name); + if (sscanf(buf, "%p %ms$*[^\n]\n", &addr, &name) != 2) + continue; + if (skip_entry(name)) + continue; + + if (cnt == max_cnt) { + max_cnt += inc_cnt; + tmp_addrs = realloc(addrs, max_cnt); + if (!tmp_addrs) { + err = -ENOMEM; + goto error; + } + addrs = tmp_addrs; + } + + addrs[cnt++] = (unsigned long)addr; } + + *addrsp = addrs; + *cntp = cnt; + +error: + free(name); + fclose(f); + if (err) + free(addrs); return err; } -static void test_kprobe_multi_bench_attach(bool kernel) +static void do_bench_test(struct kprobe_multi_empty *skel, struct bpf_kprobe_multi_opts *opts) { - LIBBPF_OPTS(bpf_kprobe_multi_opts, opts); - struct kprobe_multi_empty *skel = NULL; long attach_start_ns, attach_end_ns; long detach_start_ns, detach_end_ns; double attach_delta, detach_delta; struct bpf_link *link = NULL; - char **syms = NULL; - size_t cnt = 0, i; - - if (!ASSERT_OK(get_syms(&syms, &cnt, kernel), "get_syms")) - return; - - skel = kprobe_multi_empty__open_and_load(); - if (!ASSERT_OK_PTR(skel, "kprobe_multi_empty__open_and_load")) - goto cleanup; - - opts.syms = (const char **) syms; - opts.cnt = cnt; attach_start_ns = get_time_ns(); link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_empty, - NULL, &opts); + NULL, opts); attach_end_ns = get_time_ns(); if (!ASSERT_OK_PTR(link, "bpf_program__attach_kprobe_multi_opts")) - goto cleanup; + return; detach_start_ns = get_time_ns(); bpf_link__destroy(link); @@ -462,17 +632,65 @@ static void test_kprobe_multi_bench_attach(bool kernel) attach_delta = (attach_end_ns - attach_start_ns) / 1000000000.0; detach_delta = (detach_end_ns - detach_start_ns) / 1000000000.0; - printf("%s: found %lu functions\n", __func__, cnt); + printf("%s: found %lu functions\n", __func__, opts->cnt); printf("%s: attached in %7.3lfs\n", __func__, attach_delta); printf("%s: detached in %7.3lfs\n", __func__, detach_delta); +} + +static void test_kprobe_multi_bench_attach(bool kernel) +{ + LIBBPF_OPTS(bpf_kprobe_multi_opts, opts); + struct kprobe_multi_empty *skel = NULL; + char **syms = NULL; + size_t cnt = 0; + + if (!ASSERT_OK(get_syms(&syms, &cnt, kernel), "get_syms")) + return; + + skel = kprobe_multi_empty__open_and_load(); + if (!ASSERT_OK_PTR(skel, "kprobe_multi_empty__open_and_load")) + goto cleanup; + + opts.syms = (const char **) syms; + opts.cnt = cnt; + + do_bench_test(skel, &opts); cleanup: kprobe_multi_empty__destroy(skel); - if (syms) { - for (i = 0; i < cnt; i++) - free(syms[i]); + if (syms) free(syms); +} + +static void test_kprobe_multi_bench_attach_addr(bool kernel) +{ + LIBBPF_OPTS(bpf_kprobe_multi_opts, opts); + struct kprobe_multi_empty *skel = NULL; + unsigned long *addrs = NULL; + size_t cnt = 0; + int err; + + err = get_addrs(&addrs, &cnt, kernel); + if (err == -ENOENT) { + test__skip(); + return; } + + if (!ASSERT_OK(err, "get_addrs")) + return; + + skel = kprobe_multi_empty__open_and_load(); + if (!ASSERT_OK_PTR(skel, "kprobe_multi_empty__open_and_load")) + goto cleanup; + + opts.addrs = addrs; + opts.cnt = cnt; + + do_bench_test(skel, &opts); + +cleanup: + kprobe_multi_empty__destroy(skel); + free(addrs); } static void test_attach_override(void) @@ -515,6 +733,10 @@ void serial_test_kprobe_multi_bench_attach(void) test_kprobe_multi_bench_attach(true); if (test__start_subtest("modules")) test_kprobe_multi_bench_attach(false); + if (test__start_subtest("kernel")) + test_kprobe_multi_bench_attach_addr(true); + if (test__start_subtest("modules")) + test_kprobe_multi_bench_attach_addr(false); } void test_kprobe_multi_test(void) @@ -538,4 +760,8 @@ void test_kprobe_multi_test(void) test_attach_api_fails(); if (test__start_subtest("attach_override")) test_attach_override(); + if (test__start_subtest("session")) + test_session_skel_api(); + if (test__start_subtest("session_cookie")) + test_session_cookie_skel_api(); } diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms.c b/tools/testing/selftests/bpf/prog_tests/ksyms.c index b295969b263b..dc7aab532fb1 100644 --- a/tools/testing/selftests/bpf/prog_tests/ksyms.c +++ b/tools/testing/selftests/bpf/prog_tests/ksyms.c @@ -5,8 +5,6 @@ #include "test_ksyms.skel.h" #include <sys/stat.h> -static int duration; - void test_ksyms(void) { const char *btf_path = "/sys/kernel/btf/vmlinux"; @@ -18,43 +16,37 @@ void test_ksyms(void) int err; err = kallsyms_find("bpf_link_fops", &link_fops_addr); - if (CHECK(err == -EINVAL, "kallsyms_fopen", "failed to open: %d\n", errno)) + if (!ASSERT_NEQ(err, -EINVAL, "bpf_link_fops: kallsyms_fopen")) return; - if (CHECK(err == -ENOENT, "ksym_find", "symbol 'bpf_link_fops' not found\n")) + if (!ASSERT_NEQ(err, -ENOENT, "bpf_link_fops: ksym_find")) return; err = kallsyms_find("__per_cpu_start", &per_cpu_start_addr); - if (CHECK(err == -EINVAL, "kallsyms_fopen", "failed to open: %d\n", errno)) + if (!ASSERT_NEQ(err, -EINVAL, "__per_cpu_start: kallsyms_fopen")) return; - if (CHECK(err == -ENOENT, "ksym_find", "symbol 'per_cpu_start' not found\n")) + if (!ASSERT_NEQ(err, -ENOENT, "__per_cpu_start: ksym_find")) return; - if (CHECK(stat(btf_path, &st), "stat_btf", "err %d\n", errno)) + if (!ASSERT_OK(stat(btf_path, &st), "stat_btf")) return; btf_size = st.st_size; skel = test_ksyms__open_and_load(); - if (CHECK(!skel, "skel_open", "failed to open and load skeleton\n")) + if (!ASSERT_OK_PTR(skel, "test_ksyms__open_and_load")) return; err = test_ksyms__attach(skel); - if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err)) + if (!ASSERT_OK(err, "test_ksyms__attach")) goto cleanup; /* trigger tracepoint */ usleep(1); data = skel->data; - CHECK(data->out__bpf_link_fops != link_fops_addr, "bpf_link_fops", - "got 0x%llx, exp 0x%llx\n", - data->out__bpf_link_fops, link_fops_addr); - CHECK(data->out__bpf_link_fops1 != 0, "bpf_link_fops1", - "got %llu, exp %llu\n", data->out__bpf_link_fops1, (__u64)0); - CHECK(data->out__btf_size != btf_size, "btf_size", - "got %llu, exp %llu\n", data->out__btf_size, btf_size); - CHECK(data->out__per_cpu_start != per_cpu_start_addr, "__per_cpu_start", - "got %llu, exp %llu\n", data->out__per_cpu_start, - per_cpu_start_addr); + ASSERT_EQ(data->out__bpf_link_fops, link_fops_addr, "bpf_link_fops"); + ASSERT_EQ(data->out__bpf_link_fops1, 0, "bpf_link_fops1"); + ASSERT_EQ(data->out__btf_size, btf_size, "btf_size"); + ASSERT_EQ(data->out__per_cpu_start, per_cpu_start_addr, "__per_cpu_start"); cleanup: test_ksyms__destroy(skel); diff --git a/tools/testing/selftests/bpf/prog_tests/module_attach.c b/tools/testing/selftests/bpf/prog_tests/module_attach.c index f53d658ed080..6d391d95f96e 100644 --- a/tools/testing/selftests/bpf/prog_tests/module_attach.c +++ b/tools/testing/selftests/bpf/prog_tests/module_attach.c @@ -51,6 +51,10 @@ void test_module_attach(void) 0, "bpf_testmod_test_read"); ASSERT_OK(err, "set_attach_target"); + err = bpf_program__set_attach_target(skel->progs.handle_fentry_explicit_manual, + 0, "bpf_testmod:bpf_testmod_test_read"); + ASSERT_OK(err, "set_attach_target_explicit"); + err = test_module_attach__load(skel); if (CHECK(err, "skel_load", "failed to load skeleton\n")) return; @@ -70,6 +74,8 @@ void test_module_attach(void) ASSERT_EQ(bss->tp_btf_read_sz, READ_SZ, "tp_btf"); ASSERT_EQ(bss->fentry_read_sz, READ_SZ, "fentry"); ASSERT_EQ(bss->fentry_manual_read_sz, READ_SZ, "fentry_manual"); + ASSERT_EQ(bss->fentry_explicit_read_sz, READ_SZ, "fentry_explicit"); + ASSERT_EQ(bss->fentry_explicit_manual_read_sz, READ_SZ, "fentry_explicit_manual"); ASSERT_EQ(bss->fexit_read_sz, READ_SZ, "fexit"); ASSERT_EQ(bss->fexit_ret, -EIO, "fexit_tet"); ASSERT_EQ(bss->fmod_ret_read_sz, READ_SZ, "fmod_ret"); diff --git a/tools/testing/selftests/bpf/prog_tests/mptcp.c b/tools/testing/selftests/bpf/prog_tests/mptcp.c index 8f8d792307c1..274d2e033e39 100644 --- a/tools/testing/selftests/bpf/prog_tests/mptcp.c +++ b/tools/testing/selftests/bpf/prog_tests/mptcp.c @@ -82,6 +82,22 @@ static void cleanup_netns(struct nstoken *nstoken) SYS_NOFAIL("ip netns del %s", NS_TEST); } +static int start_mptcp_server(int family, const char *addr_str, __u16 port, + int timeout_ms) +{ + struct network_helper_opts opts = { + .timeout_ms = timeout_ms, + .proto = IPPROTO_MPTCP, + }; + struct sockaddr_storage addr; + socklen_t addrlen; + + if (make_sockaddr(family, addr_str, port, &addr, &addrlen)) + return -1; + + return start_server_addr(SOCK_STREAM, &addr, addrlen, &opts); +} + static int verify_tsk(int map_fd, int client_fd) { int err, cfd = client_fd; @@ -273,6 +289,8 @@ static int run_mptcpify(int cgroup_fd) if (!ASSERT_OK_PTR(mptcpify_skel, "skel_open_load")) return libbpf_get_error(mptcpify_skel); + mptcpify_skel->bss->pid = getpid(); + err = mptcpify__attach(mptcpify_skel); if (!ASSERT_OK(err, "skel_attach")) goto out; diff --git a/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c b/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c index 24d493482ffc..e72d75d6baa7 100644 --- a/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c +++ b/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c @@ -12,77 +12,229 @@ #include <sys/wait.h> #include <sys/mount.h> #include <sys/fcntl.h> +#include "network_helpers.h" #define STACK_SIZE (1024 * 1024) static char child_stack[STACK_SIZE]; -static int test_current_pid_tgid(void *args) +static int get_pid_tgid(pid_t *pid, pid_t *tgid, + struct test_ns_current_pid_tgid__bss *bss) { - struct test_ns_current_pid_tgid__bss *bss; - struct test_ns_current_pid_tgid *skel; - int err = -1, duration = 0; - pid_t tgid, pid; struct stat st; + int err; - skel = test_ns_current_pid_tgid__open_and_load(); - if (CHECK(!skel, "skel_open_load", "failed to load skeleton\n")) - goto cleanup; - - pid = syscall(SYS_gettid); - tgid = getpid(); + *pid = syscall(SYS_gettid); + *tgid = getpid(); err = stat("/proc/self/ns/pid", &st); - if (CHECK(err, "stat", "failed /proc/self/ns/pid: %d\n", err)) - goto cleanup; + if (!ASSERT_OK(err, "stat /proc/self/ns/pid")) + return err; - bss = skel->bss; bss->dev = st.st_dev; bss->ino = st.st_ino; bss->user_pid = 0; bss->user_tgid = 0; + return 0; +} + +static int test_current_pid_tgid_tp(void *args) +{ + struct test_ns_current_pid_tgid__bss *bss; + struct test_ns_current_pid_tgid *skel; + int ret = -1, err; + pid_t tgid, pid; + + skel = test_ns_current_pid_tgid__open(); + if (!ASSERT_OK_PTR(skel, "test_ns_current_pid_tgid__open")) + return ret; + + bpf_program__set_autoload(skel->progs.tp_handler, true); + + err = test_ns_current_pid_tgid__load(skel); + if (!ASSERT_OK(err, "test_ns_current_pid_tgid__load")) + goto cleanup; + + bss = skel->bss; + if (get_pid_tgid(&pid, &tgid, bss)) + goto cleanup; err = test_ns_current_pid_tgid__attach(skel); - if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err)) + if (!ASSERT_OK(err, "test_ns_current_pid_tgid__attach")) goto cleanup; /* trigger tracepoint */ usleep(1); - ASSERT_EQ(bss->user_pid, pid, "pid"); - ASSERT_EQ(bss->user_tgid, tgid, "tgid"); - err = 0; + if (!ASSERT_EQ(bss->user_pid, pid, "pid")) + goto cleanup; + if (!ASSERT_EQ(bss->user_tgid, tgid, "tgid")) + goto cleanup; + ret = 0; + +cleanup: + test_ns_current_pid_tgid__destroy(skel); + return ret; +} + +static int test_current_pid_tgid_cgrp(void *args) +{ + struct test_ns_current_pid_tgid__bss *bss; + struct test_ns_current_pid_tgid *skel; + int server_fd = -1, ret = -1, err; + int cgroup_fd = *(int *)args; + pid_t tgid, pid; + + skel = test_ns_current_pid_tgid__open(); + if (!ASSERT_OK_PTR(skel, "test_ns_current_pid_tgid__open")) + return ret; + + bpf_program__set_autoload(skel->progs.cgroup_bind4, true); + + err = test_ns_current_pid_tgid__load(skel); + if (!ASSERT_OK(err, "test_ns_current_pid_tgid__load")) + goto cleanup; + + bss = skel->bss; + if (get_pid_tgid(&pid, &tgid, bss)) + goto cleanup; + + skel->links.cgroup_bind4 = bpf_program__attach_cgroup( + skel->progs.cgroup_bind4, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links.cgroup_bind4, "bpf_program__attach_cgroup")) + goto cleanup; + + server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0); + if (!ASSERT_GE(server_fd, 0, "start_server")) + goto cleanup; + + if (!ASSERT_EQ(bss->user_pid, pid, "pid")) + goto cleanup; + if (!ASSERT_EQ(bss->user_tgid, tgid, "tgid")) + goto cleanup; + ret = 0; cleanup: - test_ns_current_pid_tgid__destroy(skel); + if (server_fd >= 0) + close(server_fd); + test_ns_current_pid_tgid__destroy(skel); + return ret; +} + +static int test_current_pid_tgid_sk_msg(void *args) +{ + int verdict, map, server_fd = -1, client_fd = -1; + struct test_ns_current_pid_tgid__bss *bss; + static const char send_msg[] = "message"; + struct test_ns_current_pid_tgid *skel; + int ret = -1, err, key = 0; + pid_t tgid, pid; + + skel = test_ns_current_pid_tgid__open(); + if (!ASSERT_OK_PTR(skel, "test_ns_current_pid_tgid__open")) + return ret; + + bpf_program__set_autoload(skel->progs.sk_msg, true); + + err = test_ns_current_pid_tgid__load(skel); + if (!ASSERT_OK(err, "test_ns_current_pid_tgid__load")) + goto cleanup; + + bss = skel->bss; + if (get_pid_tgid(&pid, &tgid, skel->bss)) + goto cleanup; + + verdict = bpf_program__fd(skel->progs.sk_msg); + map = bpf_map__fd(skel->maps.sock_map); + err = bpf_prog_attach(verdict, map, BPF_SK_MSG_VERDICT, 0); + if (!ASSERT_OK(err, "prog_attach")) + goto cleanup; + + server_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0); + if (!ASSERT_GE(server_fd, 0, "start_server")) + goto cleanup; - return err; + client_fd = connect_to_fd(server_fd, 0); + if (!ASSERT_GE(client_fd, 0, "connect_to_fd")) + goto cleanup; + + err = bpf_map_update_elem(map, &key, &client_fd, BPF_ANY); + if (!ASSERT_OK(err, "bpf_map_update_elem")) + goto cleanup; + + err = send(client_fd, send_msg, sizeof(send_msg), 0); + if (!ASSERT_EQ(err, sizeof(send_msg), "send(msg)")) + goto cleanup; + + if (!ASSERT_EQ(bss->user_pid, pid, "pid")) + goto cleanup; + if (!ASSERT_EQ(bss->user_tgid, tgid, "tgid")) + goto cleanup; + ret = 0; + +cleanup: + if (server_fd >= 0) + close(server_fd); + if (client_fd >= 0) + close(client_fd); + test_ns_current_pid_tgid__destroy(skel); + return ret; } -static void test_ns_current_pid_tgid_new_ns(void) +static void test_ns_current_pid_tgid_new_ns(int (*fn)(void *), void *arg) { - int wstatus, duration = 0; + int wstatus; pid_t cpid; /* Create a process in a new namespace, this process * will be the init process of this new namespace hence will be pid 1. */ - cpid = clone(test_current_pid_tgid, child_stack + STACK_SIZE, - CLONE_NEWPID | SIGCHLD, NULL); + cpid = clone(fn, child_stack + STACK_SIZE, + CLONE_NEWPID | SIGCHLD, arg); - if (CHECK(cpid == -1, "clone", "%s\n", strerror(errno))) + if (!ASSERT_NEQ(cpid, -1, "clone")) return; - if (CHECK(waitpid(cpid, &wstatus, 0) == -1, "waitpid", "%s\n", strerror(errno))) + if (!ASSERT_NEQ(waitpid(cpid, &wstatus, 0), -1, "waitpid")) return; - if (CHECK(WEXITSTATUS(wstatus) != 0, "newns_pidtgid", "failed")) + if (!ASSERT_OK(WEXITSTATUS(wstatus), "newns_pidtgid")) return; } +static void test_in_netns(int (*fn)(void *), void *arg) +{ + struct nstoken *nstoken = NULL; + + SYS(cleanup, "ip netns add ns_current_pid_tgid"); + SYS(cleanup, "ip -net ns_current_pid_tgid link set dev lo up"); + + nstoken = open_netns("ns_current_pid_tgid"); + if (!ASSERT_OK_PTR(nstoken, "open_netns")) + goto cleanup; + + test_ns_current_pid_tgid_new_ns(fn, arg); + +cleanup: + if (nstoken) + close_netns(nstoken); + SYS_NOFAIL("ip netns del ns_current_pid_tgid"); +} + /* TODO: use a different tracepoint */ void serial_test_ns_current_pid_tgid(void) { - if (test__start_subtest("ns_current_pid_tgid_root_ns")) - test_current_pid_tgid(NULL); - if (test__start_subtest("ns_current_pid_tgid_new_ns")) - test_ns_current_pid_tgid_new_ns(); + if (test__start_subtest("root_ns_tp")) + test_current_pid_tgid_tp(NULL); + if (test__start_subtest("new_ns_tp")) + test_ns_current_pid_tgid_new_ns(test_current_pid_tgid_tp, NULL); + if (test__start_subtest("new_ns_cgrp")) { + int cgroup_fd = -1; + + cgroup_fd = test__join_cgroup("/sock_addr"); + if (ASSERT_GE(cgroup_fd, 0, "join_cgroup")) { + test_in_netns(test_current_pid_tgid_cgrp, &cgroup_fd); + close(cgroup_fd); + } + } + if (test__start_subtest("new_ns_sk_msg")) + test_in_netns(test_current_pid_tgid_sk_msg, NULL); } diff --git a/tools/testing/selftests/bpf/prog_tests/preempt_lock.c b/tools/testing/selftests/bpf/prog_tests/preempt_lock.c new file mode 100644 index 000000000000..02917c672441 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/preempt_lock.c @@ -0,0 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> +#include <network_helpers.h> +#include <preempt_lock.skel.h> + +void test_preempt_lock(void) +{ + RUN_TESTS(preempt_lock); +} diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf.c b/tools/testing/selftests/bpf/prog_tests/ringbuf.c index 48c5695b7abf..4c6f42dae409 100644 --- a/tools/testing/selftests/bpf/prog_tests/ringbuf.c +++ b/tools/testing/selftests/bpf/prog_tests/ringbuf.c @@ -13,6 +13,7 @@ #include <linux/perf_event.h> #include <linux/ring_buffer.h> #include "test_ringbuf.lskel.h" +#include "test_ringbuf_n.lskel.h" #include "test_ringbuf_map_key.lskel.h" #define EDONE 7777 @@ -326,6 +327,68 @@ cleanup: test_ringbuf_lskel__destroy(skel); } +/* + * Test ring_buffer__consume_n() by producing N_TOT_SAMPLES samples in the ring + * buffer, via getpid(), and consuming them in chunks of N_SAMPLES. + */ +#define N_TOT_SAMPLES 32 +#define N_SAMPLES 4 + +/* Sample value to verify the callback validity */ +#define SAMPLE_VALUE 42L + +static int process_n_sample(void *ctx, void *data, size_t len) +{ + struct sample *s = data; + + ASSERT_EQ(s->value, SAMPLE_VALUE, "sample_value"); + + return 0; +} + +static void ringbuf_n_subtest(void) +{ + struct test_ringbuf_n_lskel *skel_n; + int err, i; + + skel_n = test_ringbuf_n_lskel__open(); + if (!ASSERT_OK_PTR(skel_n, "test_ringbuf_n_lskel__open")) + return; + + skel_n->maps.ringbuf.max_entries = getpagesize(); + skel_n->bss->pid = getpid(); + + err = test_ringbuf_n_lskel__load(skel_n); + if (!ASSERT_OK(err, "test_ringbuf_n_lskel__load")) + goto cleanup; + + ringbuf = ring_buffer__new(skel_n->maps.ringbuf.map_fd, + process_n_sample, NULL, NULL); + if (!ASSERT_OK_PTR(ringbuf, "ring_buffer__new")) + goto cleanup; + + err = test_ringbuf_n_lskel__attach(skel_n); + if (!ASSERT_OK(err, "test_ringbuf_n_lskel__attach")) + goto cleanup_ringbuf; + + /* Produce N_TOT_SAMPLES samples in the ring buffer by calling getpid() */ + skel_n->bss->value = SAMPLE_VALUE; + for (i = 0; i < N_TOT_SAMPLES; i++) + syscall(__NR_getpgid); + + /* Consume all samples from the ring buffer in batches of N_SAMPLES */ + for (i = 0; i < N_TOT_SAMPLES; i += err) { + err = ring_buffer__consume_n(ringbuf, N_SAMPLES); + if (!ASSERT_EQ(err, N_SAMPLES, "rb_consume")) + goto cleanup_ringbuf; + } + +cleanup_ringbuf: + ring_buffer__free(ringbuf); +cleanup: + test_ringbuf_n_lskel__destroy(skel_n); +} + static int process_map_key_sample(void *ctx, void *data, size_t len) { struct sample *s; @@ -384,6 +447,8 @@ void test_ringbuf(void) { if (test__start_subtest("ringbuf")) ringbuf_subtest(); + if (test__start_subtest("ringbuf_n")) + ringbuf_n_subtest(); if (test__start_subtest("ringbuf_map_key")) ringbuf_map_key_subtest(); } diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c index b15b343ebb6b..920aee41bd58 100644 --- a/tools/testing/selftests/bpf/prog_tests/send_signal.c +++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c @@ -179,7 +179,7 @@ static void test_send_signal_nmi(bool signal_thread) pmu_fd = syscall(__NR_perf_event_open, &attr, 0 /* pid */, -1 /* cpu */, -1 /* group_fd */, 0 /* flags */); if (pmu_fd == -1) { - if (errno == ENOENT) { + if (errno == ENOENT || errno == EOPNOTSUPP) { printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n", __func__); test__skip(); diff --git a/tools/testing/selftests/bpf/prog_tests/sk_assign.c b/tools/testing/selftests/bpf/prog_tests/sk_assign.c index 1374b626a985..0b9bd1d6f7cc 100644 --- a/tools/testing/selftests/bpf/prog_tests/sk_assign.c +++ b/tools/testing/selftests/bpf/prog_tests/sk_assign.c @@ -15,6 +15,7 @@ #include <unistd.h> #include "test_progs.h" +#include "network_helpers.h" #define BIND_PORT 1234 #define CONNECT_PORT 4321 @@ -22,8 +23,6 @@ #define NS_SELF "/proc/self/ns/net" #define SERVER_MAP_PATH "/sys/fs/bpf/tc/globals/server_map" -static const struct timeval timeo_sec = { .tv_sec = 3 }; -static const size_t timeo_optlen = sizeof(timeo_sec); static int stop, duration; static bool @@ -73,52 +72,6 @@ configure_stack(void) return true; } -static int -start_server(const struct sockaddr *addr, socklen_t len, int type) -{ - int fd; - - fd = socket(addr->sa_family, type, 0); - if (CHECK_FAIL(fd == -1)) - goto out; - if (CHECK_FAIL(setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &timeo_sec, - timeo_optlen))) - goto close_out; - if (CHECK_FAIL(bind(fd, addr, len) == -1)) - goto close_out; - if (type == SOCK_STREAM && CHECK_FAIL(listen(fd, 128) == -1)) - goto close_out; - - goto out; -close_out: - close(fd); - fd = -1; -out: - return fd; -} - -static int -connect_to_server(const struct sockaddr *addr, socklen_t len, int type) -{ - int fd = -1; - - fd = socket(addr->sa_family, type, 0); - if (CHECK_FAIL(fd == -1)) - goto out; - if (CHECK_FAIL(setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &timeo_sec, - timeo_optlen))) - goto close_out; - if (CHECK_FAIL(connect(fd, addr, len))) - goto close_out; - - goto out; -close_out: - close(fd); - fd = -1; -out: - return fd; -} - static in_port_t get_port(int fd) { @@ -161,7 +114,7 @@ run_test(int server_fd, const struct sockaddr *addr, socklen_t len, int type) in_port_t port; int ret = 1; - client = connect_to_server(addr, len, type); + client = connect_to_addr(type, (struct sockaddr_storage *)addr, len, NULL); if (client == -1) { perror("Cannot connect to server"); goto out; @@ -310,7 +263,9 @@ void test_sk_assign(void) continue; prepare_addr(test->addr, test->family, BIND_PORT, false); addr = (const struct sockaddr *)test->addr; - server = start_server(addr, test->len, test->type); + server = start_server_addr(test->type, + (const struct sockaddr_storage *)addr, + test->len, NULL); if (server == -1) goto close; diff --git a/tools/testing/selftests/bpf/prog_tests/sock_addr.c b/tools/testing/selftests/bpf/prog_tests/sock_addr.c index 5fd617718991..b880c564a204 100644 --- a/tools/testing/selftests/bpf/prog_tests/sock_addr.c +++ b/tools/testing/selftests/bpf/prog_tests/sock_addr.c @@ -3,16 +3,56 @@ #include "test_progs.h" +#include "sock_addr_kern.skel.h" +#include "bind4_prog.skel.h" +#include "bind6_prog.skel.h" #include "connect_unix_prog.skel.h" +#include "connect4_prog.skel.h" +#include "connect6_prog.skel.h" +#include "sendmsg4_prog.skel.h" +#include "sendmsg6_prog.skel.h" +#include "recvmsg4_prog.skel.h" +#include "recvmsg6_prog.skel.h" #include "sendmsg_unix_prog.skel.h" #include "recvmsg_unix_prog.skel.h" +#include "getsockname4_prog.skel.h" +#include "getsockname6_prog.skel.h" #include "getsockname_unix_prog.skel.h" +#include "getpeername4_prog.skel.h" +#include "getpeername6_prog.skel.h" #include "getpeername_unix_prog.skel.h" #include "network_helpers.h" +#ifndef ENOTSUPP +# define ENOTSUPP 524 +#endif + +#define TEST_NS "sock_addr" +#define TEST_IF_PREFIX "test_sock_addr" +#define TEST_IPV4 "127.0.0.4" +#define TEST_IPV6 "::6" + +#define SERV4_IP "192.168.1.254" +#define SERV4_REWRITE_IP "127.0.0.1" +#define SRC4_IP "172.16.0.1" +#define SRC4_REWRITE_IP TEST_IPV4 +#define SERV4_PORT 4040 +#define SERV4_REWRITE_PORT 4444 + +#define SERV6_IP "face:b00c:1234:5678::abcd" +#define SERV6_REWRITE_IP "::1" +#define SERV6_V4MAPPED_IP "::ffff:192.168.0.4" +#define SRC6_IP "::1" +#define SRC6_REWRITE_IP TEST_IPV6 +#define WILDCARD6_IP "::" +#define SERV6_PORT 6060 +#define SERV6_REWRITE_PORT 6666 + #define SERVUN_ADDRESS "bpf_cgroup_unix_test" #define SERVUN_REWRITE_ADDRESS "bpf_cgroup_unix_test_rewrite" -#define SRCUN_ADDRESS "bpf_cgroup_unix_test_src" +#define SRCUN_ADDRESS "bpf_cgroup_unix_test_src" + +#define save_errno_do(op) ({ int __save = errno; op; errno = __save; }) enum sock_addr_test_type { SOCK_ADDR_TEST_BIND, @@ -23,152 +63,955 @@ enum sock_addr_test_type { SOCK_ADDR_TEST_GETPEERNAME, }; -typedef void *(*load_fn)(int cgroup_fd); +typedef void *(*load_fn)(int cgroup_fd, + enum bpf_attach_type attach_type, + bool expect_reject); typedef void (*destroy_fn)(void *skel); -struct sock_addr_test { - enum sock_addr_test_type type; - const char *name; - /* BPF prog properties */ - load_fn loadfn; - destroy_fn destroyfn; - /* Socket properties */ - int socket_family; - int socket_type; - /* IP:port pairs for BPF prog to override */ - const char *requested_addr; - unsigned short requested_port; - const char *expected_addr; - unsigned short expected_port; - const char *expected_src_addr; +static int cmp_addr(const struct sockaddr_storage *addr1, socklen_t addr1_len, + const struct sockaddr_storage *addr2, socklen_t addr2_len, + bool cmp_port); + +struct init_sock_args { + int af; + int type; }; -static void *connect_unix_prog_load(int cgroup_fd) -{ - struct connect_unix_prog *skel; +struct addr_args { + char addr[sizeof(struct sockaddr_storage)]; + int addrlen; +}; - skel = connect_unix_prog__open_and_load(); - if (!ASSERT_OK_PTR(skel, "skel_open")) - goto cleanup; +struct sendmsg_args { + struct addr_args addr; + char msg[10]; + int msglen; +}; - skel->links.connect_unix_prog = bpf_program__attach_cgroup( - skel->progs.connect_unix_prog, cgroup_fd); - if (!ASSERT_OK_PTR(skel->links.connect_unix_prog, "prog_attach")) - goto cleanup; +static struct sock_addr_kern *skel; - return skel; -cleanup: - connect_unix_prog__destroy(skel); - return NULL; +static int run_bpf_prog(const char *prog_name, void *ctx, int ctx_size) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + struct bpf_program *prog; + int prog_fd, err; + + topts.ctx_in = ctx; + topts.ctx_size_in = ctx_size; + + prog = bpf_object__find_program_by_name(skel->obj, prog_name); + if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name")) + goto err; + + prog_fd = bpf_program__fd(prog); + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, prog_name)) + goto err; + + err = topts.retval; + errno = -topts.retval; + goto out; +err: + err = -1; +out: + return err; } -static void connect_unix_prog_destroy(void *skel) +static int kernel_init_sock(int af, int type, int protocol) { - connect_unix_prog__destroy(skel); + struct init_sock_args args = { + .af = af, + .type = type, + }; + + return run_bpf_prog("init_sock", &args, sizeof(args)); } -static void *sendmsg_unix_prog_load(int cgroup_fd) +static int kernel_close_sock(int fd) { - struct sendmsg_unix_prog *skel; + return run_bpf_prog("close_sock", NULL, 0); +} - skel = sendmsg_unix_prog__open_and_load(); - if (!ASSERT_OK_PTR(skel, "skel_open")) - goto cleanup; +static int sock_addr_op(const char *name, struct sockaddr *addr, + socklen_t *addrlen, bool expect_change) +{ + struct addr_args args; + int err; - skel->links.sendmsg_unix_prog = bpf_program__attach_cgroup( - skel->progs.sendmsg_unix_prog, cgroup_fd); - if (!ASSERT_OK_PTR(skel->links.sendmsg_unix_prog, "prog_attach")) - goto cleanup; + if (addrlen) + args.addrlen = *addrlen; - return skel; -cleanup: - sendmsg_unix_prog__destroy(skel); - return NULL; + if (addr) + memcpy(&args.addr, addr, *addrlen); + + err = run_bpf_prog(name, &args, sizeof(args)); + + if (!expect_change && addr) + if (!ASSERT_EQ(cmp_addr((struct sockaddr_storage *)addr, + *addrlen, + (struct sockaddr_storage *)&args.addr, + args.addrlen, 1), + 0, "address_param_modified")) + return -1; + + if (addrlen) + *addrlen = args.addrlen; + + if (addr) + memcpy(addr, &args.addr, *addrlen); + + return err; } -static void sendmsg_unix_prog_destroy(void *skel) +static int send_msg_op(const char *name, struct sockaddr *addr, + socklen_t addrlen, const char *msg, int msglen) { - sendmsg_unix_prog__destroy(skel); + struct sendmsg_args args; + int err; + + memset(&args, 0, sizeof(args)); + memcpy(&args.addr.addr, addr, addrlen); + args.addr.addrlen = addrlen; + memcpy(args.msg, msg, msglen); + args.msglen = msglen; + + err = run_bpf_prog(name, &args, sizeof(args)); + + if (!ASSERT_EQ(cmp_addr((struct sockaddr_storage *)addr, + addrlen, + (struct sockaddr_storage *)&args.addr.addr, + args.addr.addrlen, 1), + 0, "address_param_modified")) + return -1; + + return err; } -static void *recvmsg_unix_prog_load(int cgroup_fd) +static int kernel_connect(struct sockaddr *addr, socklen_t addrlen) { - struct recvmsg_unix_prog *skel; - - skel = recvmsg_unix_prog__open_and_load(); - if (!ASSERT_OK_PTR(skel, "skel_open")) - goto cleanup; + return sock_addr_op("kernel_connect", addr, &addrlen, false); +} - skel->links.recvmsg_unix_prog = bpf_program__attach_cgroup( - skel->progs.recvmsg_unix_prog, cgroup_fd); - if (!ASSERT_OK_PTR(skel->links.recvmsg_unix_prog, "prog_attach")) - goto cleanup; +static int kernel_bind(int fd, struct sockaddr *addr, socklen_t addrlen) +{ + return sock_addr_op("kernel_bind", addr, &addrlen, false); +} - return skel; -cleanup: - recvmsg_unix_prog__destroy(skel); - return NULL; +static int kernel_listen(void) +{ + return sock_addr_op("kernel_listen", NULL, NULL, false); } -static void recvmsg_unix_prog_destroy(void *skel) +static int kernel_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen, + char *msg, int msglen) { - recvmsg_unix_prog__destroy(skel); + return send_msg_op("kernel_sendmsg", addr, addrlen, msg, msglen); } -static void *getsockname_unix_prog_load(int cgroup_fd) +static int sock_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen, + char *msg, int msglen) { - struct getsockname_unix_prog *skel; + return send_msg_op("sock_sendmsg", addr, addrlen, msg, msglen); +} - skel = getsockname_unix_prog__open_and_load(); - if (!ASSERT_OK_PTR(skel, "skel_open")) - goto cleanup; +static int kernel_getsockname(int fd, struct sockaddr *addr, socklen_t *addrlen) +{ + return sock_addr_op("kernel_getsockname", addr, addrlen, true); +} - skel->links.getsockname_unix_prog = bpf_program__attach_cgroup( - skel->progs.getsockname_unix_prog, cgroup_fd); - if (!ASSERT_OK_PTR(skel->links.getsockname_unix_prog, "prog_attach")) - goto cleanup; +static int kernel_getpeername(int fd, struct sockaddr *addr, socklen_t *addrlen) +{ + return sock_addr_op("kernel_getpeername", addr, addrlen, true); +} - return skel; -cleanup: - getsockname_unix_prog__destroy(skel); - return NULL; +int kernel_connect_to_addr(int type, const struct sockaddr_storage *addr, socklen_t addrlen, + const struct network_helper_opts *opts) +{ + int err; + + if (!ASSERT_OK(kernel_init_sock(addr->ss_family, type, 0), + "kernel_init_sock")) + goto err; + + if (kernel_connect((struct sockaddr *)addr, addrlen) < 0) + goto err; + + /* Test code expects a "file descriptor" on success. */ + err = 1; + goto out; +err: + err = -1; + save_errno_do(ASSERT_OK(kernel_close_sock(0), "kernel_close_sock")); +out: + return err; } -static void getsockname_unix_prog_destroy(void *skel) +int kernel_start_server(int family, int type, const char *addr_str, __u16 port, + int timeout_ms) { - getsockname_unix_prog__destroy(skel); + struct sockaddr_storage addr; + socklen_t addrlen; + int err; + + if (!ASSERT_OK(kernel_init_sock(family, type, 0), "kernel_init_sock")) + goto err; + + if (make_sockaddr(family, addr_str, port, &addr, &addrlen)) + goto err; + + if (kernel_bind(0, (struct sockaddr *)&addr, addrlen) < 0) + goto err; + + if (type == SOCK_STREAM) { + if (!ASSERT_OK(kernel_listen(), "kernel_listen")) + goto err; + } + + /* Test code expects a "file descriptor" on success. */ + err = 1; + goto out; +err: + err = -1; + save_errno_do(ASSERT_OK(kernel_close_sock(0), "kernel_close_sock")); +out: + return err; } -static void *getpeername_unix_prog_load(int cgroup_fd) +struct sock_ops { + int (*connect_to_addr)(int type, const struct sockaddr_storage *addr, + socklen_t addrlen, + const struct network_helper_opts *opts); + int (*start_server)(int family, int type, const char *addr_str, + __u16 port, int timeout_ms); + int (*socket)(int famil, int type, int protocol); + int (*bind)(int fd, struct sockaddr *addr, socklen_t addrlen); + int (*getsockname)(int fd, struct sockaddr *addr, socklen_t *addrlen); + int (*getpeername)(int fd, struct sockaddr *addr, socklen_t *addrlen); + int (*sendmsg)(int fd, struct sockaddr *addr, socklen_t addrlen, + char *msg, int msglen); + int (*close)(int fd); +}; + +static int user_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen, + char *msg, int msglen) { - struct getpeername_unix_prog *skel; + struct msghdr hdr; + struct iovec iov; - skel = getpeername_unix_prog__open_and_load(); - if (!ASSERT_OK_PTR(skel, "skel_open")) - goto cleanup; + memset(&iov, 0, sizeof(iov)); + iov.iov_base = msg; + iov.iov_len = msglen; - skel->links.getpeername_unix_prog = bpf_program__attach_cgroup( - skel->progs.getpeername_unix_prog, cgroup_fd); - if (!ASSERT_OK_PTR(skel->links.getpeername_unix_prog, "prog_attach")) - goto cleanup; + memset(&hdr, 0, sizeof(hdr)); + hdr.msg_name = (void *)addr; + hdr.msg_namelen = addrlen; + hdr.msg_iov = &iov; + hdr.msg_iovlen = 1; - return skel; -cleanup: - getpeername_unix_prog__destroy(skel); - return NULL; + return sendmsg(fd, &hdr, 0); } -static void getpeername_unix_prog_destroy(void *skel) +static int user_bind(int fd, struct sockaddr *addr, socklen_t addrlen) { - getpeername_unix_prog__destroy(skel); + return bind(fd, (const struct sockaddr *)addr, addrlen); +} + +struct sock_ops user_ops = { + .connect_to_addr = connect_to_addr, + .start_server = start_server, + .socket = socket, + .bind = user_bind, + .getsockname = getsockname, + .getpeername = getpeername, + .sendmsg = user_sendmsg, + .close = close, +}; + +struct sock_ops kern_ops_sock_sendmsg = { + .connect_to_addr = kernel_connect_to_addr, + .start_server = kernel_start_server, + .socket = kernel_init_sock, + .bind = kernel_bind, + .getsockname = kernel_getsockname, + .getpeername = kernel_getpeername, + .sendmsg = sock_sendmsg, + .close = kernel_close_sock, +}; + +struct sock_ops kern_ops_kernel_sendmsg = { + .connect_to_addr = kernel_connect_to_addr, + .start_server = kernel_start_server, + .socket = kernel_init_sock, + .bind = kernel_bind, + .getsockname = kernel_getsockname, + .getpeername = kernel_getpeername, + .sendmsg = kernel_sendmsg, + .close = kernel_close_sock, +}; + +struct sock_addr_test { + enum sock_addr_test_type type; + const char *name; + /* BPF prog properties */ + load_fn loadfn; + destroy_fn destroyfn; + enum bpf_attach_type attach_type; + /* Socket operations */ + struct sock_ops *ops; + /* Socket properties */ + int socket_family; + int socket_type; + /* IP:port pairs for BPF prog to override */ + const char *requested_addr; + unsigned short requested_port; + const char *expected_addr; + unsigned short expected_port; + const char *expected_src_addr; + /* Expected test result */ + enum { + LOAD_REJECT, + ATTACH_REJECT, + SYSCALL_EPERM, + SYSCALL_ENOTSUPP, + SUCCESS, + } expected_result; +}; + +#define BPF_SKEL_FUNCS_RAW(skel_name, prog_name) \ +static void *prog_name##_load_raw(int cgroup_fd, \ + enum bpf_attach_type attach_type, \ + bool expect_reject) \ +{ \ + struct skel_name *skel = skel_name##__open(); \ + int prog_fd = -1; \ + if (!ASSERT_OK_PTR(skel, "skel_open")) \ + goto cleanup; \ + if (!ASSERT_OK(skel_name##__load(skel), "load")) \ + goto cleanup; \ + prog_fd = bpf_program__fd(skel->progs.prog_name); \ + if (!ASSERT_GT(prog_fd, 0, "prog_fd")) \ + goto cleanup; \ + if (bpf_prog_attach(prog_fd, cgroup_fd, attach_type, \ + BPF_F_ALLOW_OVERRIDE), "bpf_prog_attach") { \ + ASSERT_TRUE(expect_reject, "unexpected rejection"); \ + goto cleanup; \ + } \ + if (!ASSERT_FALSE(expect_reject, "expected rejection")) \ + goto cleanup; \ +cleanup: \ + if (prog_fd > 0) \ + bpf_prog_detach(cgroup_fd, attach_type); \ + skel_name##__destroy(skel); \ + return NULL; \ +} \ +static void prog_name##_destroy_raw(void *progfd) \ +{ \ + /* No-op. *_load_raw does all cleanup. */ \ +} \ + +#define BPF_SKEL_FUNCS(skel_name, prog_name) \ +static void *prog_name##_load(int cgroup_fd, \ + enum bpf_attach_type attach_type, \ + bool expect_reject) \ +{ \ + struct skel_name *skel = skel_name##__open(); \ + if (!ASSERT_OK_PTR(skel, "skel_open")) \ + goto cleanup; \ + if (!ASSERT_OK(bpf_program__set_expected_attach_type(skel->progs.prog_name, \ + attach_type), \ + "set_expected_attach_type")) \ + goto cleanup; \ + if (skel_name##__load(skel)) { \ + ASSERT_TRUE(expect_reject, "unexpected rejection"); \ + goto cleanup; \ + } \ + if (!ASSERT_FALSE(expect_reject, "expected rejection")) \ + goto cleanup; \ + skel->links.prog_name = bpf_program__attach_cgroup( \ + skel->progs.prog_name, cgroup_fd); \ + if (!ASSERT_OK_PTR(skel->links.prog_name, "prog_attach")) \ + goto cleanup; \ + return skel; \ +cleanup: \ + skel_name##__destroy(skel); \ + return NULL; \ +} \ +static void prog_name##_destroy(void *skel) \ +{ \ + skel_name##__destroy(skel); \ } +BPF_SKEL_FUNCS(bind4_prog, bind_v4_prog); +BPF_SKEL_FUNCS_RAW(bind4_prog, bind_v4_prog); +BPF_SKEL_FUNCS(bind4_prog, bind_v4_deny_prog); +BPF_SKEL_FUNCS(bind6_prog, bind_v6_prog); +BPF_SKEL_FUNCS_RAW(bind6_prog, bind_v6_prog); +BPF_SKEL_FUNCS(bind6_prog, bind_v6_deny_prog); +BPF_SKEL_FUNCS(connect4_prog, connect_v4_prog); +BPF_SKEL_FUNCS_RAW(connect4_prog, connect_v4_prog); +BPF_SKEL_FUNCS(connect4_prog, connect_v4_deny_prog); +BPF_SKEL_FUNCS(connect6_prog, connect_v6_prog); +BPF_SKEL_FUNCS_RAW(connect6_prog, connect_v6_prog); +BPF_SKEL_FUNCS(connect6_prog, connect_v6_deny_prog); +BPF_SKEL_FUNCS(connect_unix_prog, connect_unix_prog); +BPF_SKEL_FUNCS_RAW(connect_unix_prog, connect_unix_prog); +BPF_SKEL_FUNCS(connect_unix_prog, connect_unix_deny_prog); +BPF_SKEL_FUNCS(sendmsg4_prog, sendmsg_v4_prog); +BPF_SKEL_FUNCS_RAW(sendmsg4_prog, sendmsg_v4_prog); +BPF_SKEL_FUNCS(sendmsg4_prog, sendmsg_v4_deny_prog); +BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_prog); +BPF_SKEL_FUNCS_RAW(sendmsg6_prog, sendmsg_v6_prog); +BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_deny_prog); +BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_preserve_dst_prog); +BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_v4mapped_prog); +BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_wildcard_prog); +BPF_SKEL_FUNCS(sendmsg_unix_prog, sendmsg_unix_prog); +BPF_SKEL_FUNCS_RAW(sendmsg_unix_prog, sendmsg_unix_prog); +BPF_SKEL_FUNCS(sendmsg_unix_prog, sendmsg_unix_deny_prog); +BPF_SKEL_FUNCS(recvmsg4_prog, recvmsg4_prog); +BPF_SKEL_FUNCS_RAW(recvmsg4_prog, recvmsg4_prog); +BPF_SKEL_FUNCS(recvmsg6_prog, recvmsg6_prog); +BPF_SKEL_FUNCS_RAW(recvmsg6_prog, recvmsg6_prog); +BPF_SKEL_FUNCS(recvmsg_unix_prog, recvmsg_unix_prog); +BPF_SKEL_FUNCS_RAW(recvmsg_unix_prog, recvmsg_unix_prog); +BPF_SKEL_FUNCS(getsockname_unix_prog, getsockname_unix_prog); +BPF_SKEL_FUNCS_RAW(getsockname_unix_prog, getsockname_unix_prog); +BPF_SKEL_FUNCS(getsockname4_prog, getsockname_v4_prog); +BPF_SKEL_FUNCS_RAW(getsockname4_prog, getsockname_v4_prog); +BPF_SKEL_FUNCS(getsockname6_prog, getsockname_v6_prog); +BPF_SKEL_FUNCS_RAW(getsockname6_prog, getsockname_v6_prog); +BPF_SKEL_FUNCS(getpeername_unix_prog, getpeername_unix_prog); +BPF_SKEL_FUNCS_RAW(getpeername_unix_prog, getpeername_unix_prog); +BPF_SKEL_FUNCS(getpeername4_prog, getpeername_v4_prog); +BPF_SKEL_FUNCS_RAW(getpeername4_prog, getpeername_v4_prog); +BPF_SKEL_FUNCS(getpeername6_prog, getpeername_v6_prog); +BPF_SKEL_FUNCS_RAW(getpeername6_prog, getpeername_v6_prog); + static struct sock_addr_test tests[] = { + /* bind - system calls */ + { + SOCK_ADDR_TEST_BIND, + "bind4: bind (stream)", + bind_v4_prog_load, + bind_v4_prog_destroy, + BPF_CGROUP_INET4_BIND, + &user_ops, + AF_INET, + SOCK_STREAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_BIND, + "bind4: bind deny (stream)", + bind_v4_deny_prog_load, + bind_v4_deny_prog_destroy, + BPF_CGROUP_INET4_BIND, + &user_ops, + AF_INET, + SOCK_STREAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_BIND, + "bind4: bind (dgram)", + bind_v4_prog_load, + bind_v4_prog_destroy, + BPF_CGROUP_INET4_BIND, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_BIND, + "bind4: bind deny (dgram)", + bind_v4_deny_prog_load, + bind_v4_deny_prog_destroy, + BPF_CGROUP_INET4_BIND, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_BIND, + "bind4: load prog with wrong expected attach type", + bind_v4_prog_load, + bind_v4_prog_destroy, + BPF_CGROUP_INET6_BIND, + &user_ops, + AF_INET, + SOCK_STREAM, + NULL, + 0, + NULL, + 0, + NULL, + LOAD_REJECT, + }, + { + SOCK_ADDR_TEST_BIND, + "bind4: attach prog with wrong attach type", + bind_v4_prog_load_raw, + bind_v4_prog_destroy_raw, + BPF_CGROUP_INET6_BIND, + &user_ops, + AF_INET, + SOCK_STREAM, + NULL, + 0, + NULL, + 0, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: bind (stream)", + bind_v6_prog_load, + bind_v6_prog_destroy, + BPF_CGROUP_INET6_BIND, + &user_ops, + AF_INET6, + SOCK_STREAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: bind deny (stream)", + bind_v6_deny_prog_load, + bind_v6_deny_prog_destroy, + BPF_CGROUP_INET6_BIND, + &user_ops, + AF_INET6, + SOCK_STREAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: bind (dgram)", + bind_v6_prog_load, + bind_v6_prog_destroy, + BPF_CGROUP_INET6_BIND, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: bind deny (dgram)", + bind_v6_deny_prog_load, + bind_v6_deny_prog_destroy, + BPF_CGROUP_INET6_BIND, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: load prog with wrong expected attach type", + bind_v6_prog_load, + bind_v6_prog_destroy, + BPF_CGROUP_INET4_BIND, + &user_ops, + AF_INET6, + SOCK_STREAM, + NULL, + 0, + NULL, + 0, + NULL, + LOAD_REJECT, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: attach prog with wrong attach type", + bind_v6_prog_load_raw, + bind_v6_prog_destroy_raw, + BPF_CGROUP_INET4_BIND, + &user_ops, + AF_INET, + SOCK_STREAM, + NULL, + 0, + NULL, + 0, + NULL, + ATTACH_REJECT, + }, + + /* bind - kernel calls */ + { + SOCK_ADDR_TEST_BIND, + "bind4: kernel_bind (stream)", + bind_v4_prog_load, + bind_v4_prog_destroy, + BPF_CGROUP_INET4_BIND, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_STREAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_BIND, + "bind4: kernel_bind deny (stream)", + bind_v4_deny_prog_load, + bind_v4_deny_prog_destroy, + BPF_CGROUP_INET4_BIND, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_STREAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_BIND, + "bind4: kernel_bind (dgram)", + bind_v4_prog_load, + bind_v4_prog_destroy, + BPF_CGROUP_INET4_BIND, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_BIND, + "bind4: kernel_bind deny (dgram)", + bind_v4_deny_prog_load, + bind_v4_deny_prog_destroy, + BPF_CGROUP_INET4_BIND, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: kernel_bind (stream)", + bind_v6_prog_load, + bind_v6_prog_destroy, + BPF_CGROUP_INET6_BIND, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_STREAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: kernel_bind deny (stream)", + bind_v6_deny_prog_load, + bind_v6_deny_prog_destroy, + BPF_CGROUP_INET6_BIND, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_STREAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: kernel_bind (dgram)", + bind_v6_prog_load, + bind_v6_prog_destroy, + BPF_CGROUP_INET6_BIND, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_BIND, + "bind6: kernel_bind deny (dgram)", + bind_v6_deny_prog_load, + bind_v6_deny_prog_destroy, + BPF_CGROUP_INET6_BIND, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + NULL, + SYSCALL_EPERM, + }, + + /* connect - system calls */ + { + SOCK_ADDR_TEST_CONNECT, + "connect4: connect (stream)", + connect_v4_prog_load, + connect_v4_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &user_ops, + AF_INET, + SOCK_STREAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect4: connect deny (stream)", + connect_v4_deny_prog_load, + connect_v4_deny_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &user_ops, + AF_INET, + SOCK_STREAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect4: connect (dgram)", + connect_v4_prog_load, + connect_v4_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect4: connect deny (dgram)", + connect_v4_deny_prog_load, + connect_v4_deny_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect4: load prog with wrong expected attach type", + connect_v4_prog_load, + connect_v4_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &user_ops, + AF_INET, + SOCK_STREAM, + NULL, + 0, + NULL, + 0, + NULL, + LOAD_REJECT, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect4: attach prog with wrong attach type", + connect_v4_prog_load_raw, + connect_v4_prog_destroy_raw, + BPF_CGROUP_INET6_CONNECT, + &user_ops, + AF_INET, + SOCK_STREAM, + NULL, + 0, + NULL, + 0, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: connect (stream)", + connect_v6_prog_load, + connect_v6_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &user_ops, + AF_INET6, + SOCK_STREAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: connect deny (stream)", + connect_v6_deny_prog_load, + connect_v6_deny_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &user_ops, + AF_INET6, + SOCK_STREAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SYSCALL_EPERM, + }, { SOCK_ADDR_TEST_CONNECT, - "connect_unix", + "connect6: connect (dgram)", + connect_v6_prog_load, + connect_v6_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: connect deny (dgram)", + connect_v6_deny_prog_load, + connect_v6_deny_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: load prog with wrong expected attach type", + connect_v6_prog_load, + connect_v6_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &user_ops, + AF_INET6, + SOCK_STREAM, + NULL, + 0, + NULL, + 0, + NULL, + LOAD_REJECT, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: attach prog with wrong attach type", + connect_v6_prog_load_raw, + connect_v6_prog_destroy_raw, + BPF_CGROUP_INET4_CONNECT, + &user_ops, + AF_INET, + SOCK_STREAM, + NULL, + 0, + NULL, + 0, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect_unix: connect (stream)", connect_unix_prog_load, connect_unix_prog_destroy, + BPF_CGROUP_UNIX_CONNECT, + &user_ops, AF_UNIX, SOCK_STREAM, SERVUN_ADDRESS, @@ -176,12 +1019,631 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect_unix: connect deny (stream)", + connect_unix_deny_prog_load, + connect_unix_deny_prog_destroy, + BPF_CGROUP_UNIX_CONNECT, + &user_ops, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect_unix: attach prog with wrong attach type", + connect_unix_prog_load_raw, + connect_unix_prog_destroy_raw, + BPF_CGROUP_INET4_CONNECT, + &user_ops, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + ATTACH_REJECT, + }, + + /* connect - kernel calls */ + { + SOCK_ADDR_TEST_CONNECT, + "connect4: kernel_connect (stream)", + connect_v4_prog_load, + connect_v4_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_STREAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect4: kernel_connect deny (stream)", + connect_v4_deny_prog_load, + connect_v4_deny_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_STREAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect4: kernel_connect (dgram)", + connect_v4_prog_load, + connect_v4_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect4: kernel_connect deny (dgram)", + connect_v4_deny_prog_load, + connect_v4_deny_prog_destroy, + BPF_CGROUP_INET4_CONNECT, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: kernel_connect (stream)", + connect_v6_prog_load, + connect_v6_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_STREAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: kernel_connect deny (stream)", + connect_v6_deny_prog_load, + connect_v6_deny_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_STREAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: kernel_connect (dgram)", + connect_v6_prog_load, + connect_v6_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect6: kernel_connect deny (dgram)", + connect_v6_deny_prog_load, + connect_v6_deny_prog_destroy, + BPF_CGROUP_INET6_CONNECT, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect_unix: kernel_connect (dgram)", + connect_unix_prog_load, + connect_unix_prog_destroy, + BPF_CGROUP_UNIX_CONNECT, + &kern_ops_sock_sendmsg, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_CONNECT, + "connect_unix: kernel_connect deny (dgram)", + connect_unix_deny_prog_load, + connect_unix_deny_prog_destroy, + BPF_CGROUP_UNIX_CONNECT, + &kern_ops_sock_sendmsg, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SYSCALL_EPERM, + }, + + /* sendmsg - system calls */ + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg4: sendmsg (dgram)", + sendmsg_v4_prog_load, + sendmsg_v4_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg4: sendmsg deny (dgram)", + sendmsg_v4_deny_prog_load, + sendmsg_v4_deny_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg4: load prog with wrong expected attach type", + sendmsg_v4_prog_load, + sendmsg_v4_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &user_ops, + AF_INET, + SOCK_DGRAM, + NULL, + 0, + NULL, + 0, + NULL, + LOAD_REJECT, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg4: attach prog with wrong attach type", + sendmsg_v4_prog_load_raw, + sendmsg_v4_prog_destroy_raw, + BPF_CGROUP_UDP6_SENDMSG, + &user_ops, + AF_INET, + SOCK_DGRAM, + NULL, + 0, + NULL, + 0, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: sendmsg (dgram)", + sendmsg_v6_prog_load, + sendmsg_v6_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: sendmsg [::] (BSD'ism) (dgram)", + sendmsg_v6_preserve_dst_prog_load, + sendmsg_v6_preserve_dst_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + WILDCARD6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_PORT, + SRC6_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: sendmsg deny (dgram)", + sendmsg_v6_deny_prog_load, + sendmsg_v6_deny_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: sendmsg IPv4-mapped IPv6 (dgram)", + sendmsg_v6_v4mapped_prog_load, + sendmsg_v6_v4mapped_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SYSCALL_ENOTSUPP, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: sendmsg dst IP = [::] (BSD'ism) (dgram)", + sendmsg_v6_wildcard_prog_load, + sendmsg_v6_wildcard_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: load prog with wrong expected attach type", + sendmsg_v6_prog_load, + sendmsg_v6_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + NULL, + 0, + NULL, + 0, + NULL, + LOAD_REJECT, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: attach prog with wrong attach type", + sendmsg_v6_prog_load_raw, + sendmsg_v6_prog_destroy_raw, + BPF_CGROUP_UDP4_SENDMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + NULL, + 0, + NULL, + 0, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg_unix: sendmsg (dgram)", + sendmsg_unix_prog_load, + sendmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, + &user_ops, + AF_UNIX, + SOCK_DGRAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg_unix: sendmsg deny (dgram)", + sendmsg_unix_deny_prog_load, + sendmsg_unix_deny_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, + &user_ops, + AF_UNIX, + SOCK_DGRAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg_unix: attach prog with wrong attach type", + sendmsg_unix_prog_load_raw, + sendmsg_unix_prog_destroy_raw, + BPF_CGROUP_UDP4_SENDMSG, + &user_ops, + AF_UNIX, + SOCK_DGRAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + ATTACH_REJECT, + }, + + /* sendmsg - kernel calls (sock_sendmsg) */ + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg4: sock_sendmsg (dgram)", + sendmsg_v4_prog_load, + sendmsg_v4_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg4: sock_sendmsg deny (dgram)", + sendmsg_v4_deny_prog_load, + sendmsg_v4_deny_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, + &kern_ops_sock_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: sock_sendmsg (dgram)", + sendmsg_v6_prog_load, + sendmsg_v6_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: sock_sendmsg [::] (BSD'ism) (dgram)", + sendmsg_v6_preserve_dst_prog_load, + sendmsg_v6_preserve_dst_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_DGRAM, + WILDCARD6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_PORT, + SRC6_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: sock_sendmsg deny (dgram)", + sendmsg_v6_deny_prog_load, + sendmsg_v6_deny_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &kern_ops_sock_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg_unix: sock_sendmsg (dgram)", + sendmsg_unix_prog_load, + sendmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, + &kern_ops_sock_sendmsg, + AF_UNIX, + SOCK_DGRAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg_unix: sock_sendmsg deny (dgram)", + sendmsg_unix_deny_prog_load, + sendmsg_unix_deny_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, + &kern_ops_sock_sendmsg, + AF_UNIX, + SOCK_DGRAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SYSCALL_EPERM, + }, + + /* sendmsg - kernel calls (kernel_sendmsg) */ + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg4: kernel_sendmsg (dgram)", + sendmsg_v4_prog_load, + sendmsg_v4_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, + &kern_ops_kernel_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg4: kernel_sendmsg deny (dgram)", + sendmsg_v4_deny_prog_load, + sendmsg_v4_deny_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, + &kern_ops_kernel_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_IP, + SERV4_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SRC4_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: kernel_sendmsg (dgram)", + sendmsg_v6_prog_load, + sendmsg_v6_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &kern_ops_kernel_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg6: kernel_sendmsg [::] (BSD'ism) (dgram)", + sendmsg_v6_preserve_dst_prog_load, + sendmsg_v6_preserve_dst_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &kern_ops_kernel_sendmsg, + AF_INET6, + SOCK_DGRAM, + WILDCARD6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_PORT, + SRC6_IP, + SUCCESS, }, { SOCK_ADDR_TEST_SENDMSG, - "sendmsg_unix", + "sendmsg6: kernel_sendmsg deny (dgram)", + sendmsg_v6_deny_prog_load, + sendmsg_v6_deny_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, + &kern_ops_kernel_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_IP, + SERV6_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SRC6_REWRITE_IP, + SYSCALL_EPERM, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg_unix: sock_sendmsg (dgram)", sendmsg_unix_prog_load, sendmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, + &kern_ops_kernel_sendmsg, AF_UNIX, SOCK_DGRAM, SERVUN_ADDRESS, @@ -189,12 +1651,97 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg_unix: kernel_sendmsg deny (dgram)", + sendmsg_unix_deny_prog_load, + sendmsg_unix_deny_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, + &kern_ops_kernel_sendmsg, + AF_UNIX, + SOCK_DGRAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SYSCALL_EPERM, + }, + + /* recvmsg - system calls */ + { + SOCK_ADDR_TEST_RECVMSG, + "recvmsg4: recvfrom (dgram)", + recvmsg4_prog_load, + recvmsg4_prog_destroy, + BPF_CGROUP_UDP4_RECVMSG, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_RECVMSG, + "recvmsg4: attach prog with wrong attach type", + recvmsg4_prog_load_raw, + recvmsg4_prog_destroy_raw, + BPF_CGROUP_UDP6_RECVMSG, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + ATTACH_REJECT, }, { SOCK_ADDR_TEST_RECVMSG, - "recvmsg_unix-dgram", + "recvmsg6: recvfrom (dgram)", + recvmsg6_prog_load, + recvmsg6_prog_destroy, + BPF_CGROUP_UDP6_RECVMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SUCCESS, + }, + { + SOCK_ADDR_TEST_RECVMSG, + "recvmsg6: attach prog with wrong attach type", + recvmsg6_prog_load_raw, + recvmsg6_prog_destroy_raw, + BPF_CGROUP_UDP4_RECVMSG, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_RECVMSG, + "recvmsg_unix: recvfrom (dgram)", recvmsg_unix_prog_load, recvmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_RECVMSG, + &user_ops, AF_UNIX, SOCK_DGRAM, SERVUN_REWRITE_ADDRESS, @@ -202,12 +1749,15 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, SERVUN_ADDRESS, + SUCCESS, }, { SOCK_ADDR_TEST_RECVMSG, - "recvmsg_unix-stream", + "recvmsg_unix: recvfrom (stream)", recvmsg_unix_prog_load, recvmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_RECVMSG, + &user_ops, AF_UNIX, SOCK_STREAM, SERVUN_REWRITE_ADDRESS, @@ -215,12 +1765,227 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, SERVUN_ADDRESS, + SUCCESS, + }, + { + SOCK_ADDR_TEST_RECVMSG, + "recvmsg_unix: attach prog with wrong attach type", + recvmsg_unix_prog_load_raw, + recvmsg_unix_prog_destroy_raw, + BPF_CGROUP_UDP4_RECVMSG, + &user_ops, + AF_INET6, + SOCK_STREAM, + SERVUN_REWRITE_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + SERVUN_ADDRESS, + ATTACH_REJECT, }, + + /* getsockname - system calls */ { SOCK_ADDR_TEST_GETSOCKNAME, - "getsockname_unix", + "getsockname4: getsockname (stream)", + getsockname_v4_prog_load, + getsockname_v4_prog_destroy, + BPF_CGROUP_INET4_GETSOCKNAME, + &user_ops, + AF_INET, + SOCK_STREAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname4: getsockname (dgram)", + getsockname_v4_prog_load, + getsockname_v4_prog_destroy, + BPF_CGROUP_INET4_GETSOCKNAME, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname4: attach prog with wrong attach type", + getsockname_v4_prog_load_raw, + getsockname_v4_prog_destroy_raw, + BPF_CGROUP_INET6_GETSOCKNAME, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname6: getsockname (stream)", + getsockname_v6_prog_load, + getsockname_v6_prog_destroy, + BPF_CGROUP_INET6_GETSOCKNAME, + &user_ops, + AF_INET6, + SOCK_STREAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname6: getsockname (dgram)", + getsockname_v6_prog_load, + getsockname_v6_prog_destroy, + BPF_CGROUP_INET6_GETSOCKNAME, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname6: attach prog with wrong attach type", + getsockname_v6_prog_load_raw, + getsockname_v6_prog_destroy_raw, + BPF_CGROUP_INET4_GETSOCKNAME, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname_unix: getsockname", + getsockname_unix_prog_load, + getsockname_unix_prog_destroy, + BPF_CGROUP_UNIX_GETSOCKNAME, + &user_ops, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname_unix: attach prog with wrong attach type", + getsockname_unix_prog_load_raw, + getsockname_unix_prog_destroy_raw, + BPF_CGROUP_INET4_GETSOCKNAME, + &user_ops, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + ATTACH_REJECT, + }, + + /* getsockname - kernel calls */ + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname4: kernel_getsockname (stream)", + getsockname_v4_prog_load, + getsockname_v4_prog_destroy, + BPF_CGROUP_INET4_GETSOCKNAME, + &kern_ops_kernel_sendmsg, + AF_INET, + SOCK_STREAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname4: kernel_getsockname (dgram)", + getsockname_v4_prog_load, + getsockname_v4_prog_destroy, + BPF_CGROUP_INET4_GETSOCKNAME, + &kern_ops_kernel_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname6: kernel_getsockname (stream)", + getsockname_v6_prog_load, + getsockname_v6_prog_destroy, + BPF_CGROUP_INET6_GETSOCKNAME, + &kern_ops_kernel_sendmsg, + AF_INET6, + SOCK_STREAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname6: kernel_getsockname (dgram)", + getsockname_v6_prog_load, + getsockname_v6_prog_destroy, + BPF_CGROUP_INET6_GETSOCKNAME, + &kern_ops_kernel_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname_unix: kernel_getsockname", getsockname_unix_prog_load, getsockname_unix_prog_destroy, + BPF_CGROUP_UNIX_GETSOCKNAME, + &kern_ops_kernel_sendmsg, AF_UNIX, SOCK_STREAM, SERVUN_ADDRESS, @@ -228,12 +1993,113 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, + }, + + /* getpeername - system calls */ + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername4: getpeername (stream)", + getpeername_v4_prog_load, + getpeername_v4_prog_destroy, + BPF_CGROUP_INET4_GETPEERNAME, + &user_ops, + AF_INET, + SOCK_STREAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername4: getpeername (dgram)", + getpeername_v4_prog_load, + getpeername_v4_prog_destroy, + BPF_CGROUP_INET4_GETPEERNAME, + &user_ops, + AF_INET, + SOCK_DGRAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + SUCCESS, }, { SOCK_ADDR_TEST_GETPEERNAME, - "getpeername_unix", + "getpeername4: attach prog with wrong attach type", + getpeername_v4_prog_load_raw, + getpeername_v4_prog_destroy_raw, + BPF_CGROUP_INET6_GETSOCKNAME, + &user_ops, + AF_UNIX, + SOCK_DGRAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername6: getpeername (stream)", + getpeername_v6_prog_load, + getpeername_v6_prog_destroy, + BPF_CGROUP_INET6_GETPEERNAME, + &user_ops, + AF_INET6, + SOCK_STREAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername6: getpeername (dgram)", + getpeername_v6_prog_load, + getpeername_v6_prog_destroy, + BPF_CGROUP_INET6_GETPEERNAME, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername6: attach prog with wrong attach type", + getpeername_v6_prog_load_raw, + getpeername_v6_prog_destroy_raw, + BPF_CGROUP_INET4_GETSOCKNAME, + &user_ops, + AF_INET6, + SOCK_DGRAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + ATTACH_REJECT, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername_unix: getpeername", getpeername_unix_prog_load, getpeername_unix_prog_destroy, + BPF_CGROUP_UNIX_GETPEERNAME, + &user_ops, AF_UNIX, SOCK_STREAM, SERVUN_ADDRESS, @@ -241,6 +2107,105 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername_unix: attach prog with wrong attach type", + getpeername_unix_prog_load_raw, + getpeername_unix_prog_destroy_raw, + BPF_CGROUP_INET4_GETSOCKNAME, + &user_ops, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + ATTACH_REJECT, + }, + + /* getpeername - kernel calls */ + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername4: kernel_getpeername (stream)", + getpeername_v4_prog_load, + getpeername_v4_prog_destroy, + BPF_CGROUP_INET4_GETPEERNAME, + &kern_ops_kernel_sendmsg, + AF_INET, + SOCK_STREAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername4: kernel_getpeername (dgram)", + getpeername_v4_prog_load, + getpeername_v4_prog_destroy, + BPF_CGROUP_INET4_GETPEERNAME, + &kern_ops_kernel_sendmsg, + AF_INET, + SOCK_DGRAM, + SERV4_REWRITE_IP, + SERV4_REWRITE_PORT, + SERV4_IP, + SERV4_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername6: kernel_getpeername (stream)", + getpeername_v6_prog_load, + getpeername_v6_prog_destroy, + BPF_CGROUP_INET6_GETPEERNAME, + &kern_ops_kernel_sendmsg, + AF_INET6, + SOCK_STREAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername6: kernel_getpeername (dgram)", + getpeername_v6_prog_load, + getpeername_v6_prog_destroy, + BPF_CGROUP_INET6_GETPEERNAME, + &kern_ops_kernel_sendmsg, + AF_INET6, + SOCK_DGRAM, + SERV6_REWRITE_IP, + SERV6_REWRITE_PORT, + SERV6_IP, + SERV6_PORT, + NULL, + SUCCESS, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername_unix: kernel_getpeername", + getpeername_unix_prog_load, + getpeername_unix_prog_destroy, + BPF_CGROUP_UNIX_GETPEERNAME, + &kern_ops_kernel_sendmsg, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + SUCCESS, }, }; @@ -294,28 +2259,40 @@ static int cmp_sock_addr(info_fn fn, int sock1, return cmp_addr(&addr1, len1, addr2, addr2_len, cmp_port); } -static int cmp_local_addr(int sock1, const struct sockaddr_storage *addr2, - socklen_t addr2_len, bool cmp_port) +static int load_sock_addr_kern(void) { - return cmp_sock_addr(getsockname, sock1, addr2, addr2_len, cmp_port); + int err; + + skel = sock_addr_kern__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel")) + goto err; + + err = 0; + goto out; +err: + err = -1; +out: + return err; } -static int cmp_peer_addr(int sock1, const struct sockaddr_storage *addr2, - socklen_t addr2_len, bool cmp_port) +static void unload_sock_addr_kern(void) { - return cmp_sock_addr(getpeername, sock1, addr2, addr2_len, cmp_port); + sock_addr_kern__destroy(skel); } -static void test_bind(struct sock_addr_test *test) +static int test_bind(struct sock_addr_test *test) { struct sockaddr_storage expected_addr; socklen_t expected_addr_len = sizeof(struct sockaddr_storage); int serv = -1, client = -1, err; - serv = start_server(test->socket_family, test->socket_type, - test->requested_addr, test->requested_port, 0); - if (!ASSERT_GE(serv, 0, "start_server")) - goto cleanup; + serv = test->ops->start_server(test->socket_family, test->socket_type, + test->requested_addr, + test->requested_port, 0); + if (serv < 0) { + err = errno; + goto err; + } err = make_sockaddr(test->socket_family, test->expected_addr, test->expected_port, @@ -323,23 +2300,28 @@ static void test_bind(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - err = cmp_local_addr(serv, &expected_addr, expected_addr_len, true); + err = cmp_sock_addr(test->ops->getsockname, serv, &expected_addr, + expected_addr_len, true); if (!ASSERT_EQ(err, 0, "cmp_local_addr")) goto cleanup; /* Try to connect to server just in case */ - client = connect_to_addr(&expected_addr, expected_addr_len, test->socket_type); + client = connect_to_addr(test->socket_type, &expected_addr, expected_addr_len, NULL); if (!ASSERT_GE(client, 0, "connect_to_addr")) goto cleanup; cleanup: + err = 0; +err: if (client != -1) close(client); if (serv != -1) - close(serv); + test->ops->close(serv); + + return err; } -static void test_connect(struct sock_addr_test *test) +static int test_connect(struct sock_addr_test *test) { struct sockaddr_storage addr, expected_addr, expected_src_addr; socklen_t addr_len = sizeof(struct sockaddr_storage), @@ -357,9 +2339,12 @@ static void test_connect(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - client = connect_to_addr(&addr, addr_len, test->socket_type); - if (!ASSERT_GE(client, 0, "connect_to_addr")) - goto cleanup; + client = test->ops->connect_to_addr(test->socket_type, &addr, addr_len, + NULL); + if (client < 0) { + err = errno; + goto err; + } err = make_sockaddr(test->socket_family, test->expected_addr, test->expected_port, &expected_addr, &expected_addr_len); @@ -373,29 +2358,34 @@ static void test_connect(struct sock_addr_test *test) goto cleanup; } - err = cmp_peer_addr(client, &expected_addr, expected_addr_len, true); + err = cmp_sock_addr(test->ops->getpeername, client, &expected_addr, + expected_addr_len, true); if (!ASSERT_EQ(err, 0, "cmp_peer_addr")) goto cleanup; if (test->expected_src_addr) { - err = cmp_local_addr(client, &expected_src_addr, expected_src_addr_len, false); + err = cmp_sock_addr(test->ops->getsockname, client, + &expected_src_addr, expected_src_addr_len, + false); if (!ASSERT_EQ(err, 0, "cmp_local_addr")) goto cleanup; } cleanup: + err = 0; +err: if (client != -1) - close(client); + test->ops->close(client); if (serv != -1) close(serv); + + return err; } -static void test_xmsg(struct sock_addr_test *test) +static int test_xmsg(struct sock_addr_test *test) { struct sockaddr_storage addr, src_addr; socklen_t addr_len = sizeof(struct sockaddr_storage), src_addr_len = sizeof(struct sockaddr_storage); - struct msghdr hdr; - struct iovec iov; char data = 'a'; int serv = -1, client = -1, err; @@ -408,7 +2398,7 @@ static void test_xmsg(struct sock_addr_test *test) if (!ASSERT_GE(serv, 0, "start_server")) goto cleanup; - client = socket(test->socket_family, test->socket_type, 0); + client = test->ops->socket(test->socket_family, test->socket_type, 0); if (!ASSERT_GE(client, 0, "socket")) goto cleanup; @@ -418,7 +2408,8 @@ static void test_xmsg(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - err = bind(client, (const struct sockaddr *) &src_addr, src_addr_len); + err = test->ops->bind(client, (struct sockaddr *)&src_addr, + src_addr_len); if (!ASSERT_OK(err, "bind")) goto cleanup; } @@ -429,17 +2420,13 @@ static void test_xmsg(struct sock_addr_test *test) goto cleanup; if (test->socket_type == SOCK_DGRAM) { - memset(&iov, 0, sizeof(iov)); - iov.iov_base = &data; - iov.iov_len = sizeof(data); - - memset(&hdr, 0, sizeof(hdr)); - hdr.msg_name = (void *)&addr; - hdr.msg_namelen = addr_len; - hdr.msg_iov = &iov; - hdr.msg_iovlen = 1; + err = test->ops->sendmsg(client, (struct sockaddr *)&addr, + addr_len, &data, sizeof(data)); + if (err < 0) { + err = errno; + goto err; + } - err = sendmsg(client, &hdr, 0); if (!ASSERT_EQ(err, sizeof(data), "sendmsg")) goto cleanup; } else { @@ -489,19 +2476,23 @@ static void test_xmsg(struct sock_addr_test *test) } cleanup: + err = 0; +err: if (client != -1) - close(client); + test->ops->close(client); if (serv != -1) close(serv); + + return err; } -static void test_getsockname(struct sock_addr_test *test) +static int test_getsockname(struct sock_addr_test *test) { struct sockaddr_storage expected_addr; socklen_t expected_addr_len = sizeof(struct sockaddr_storage); int serv = -1, err; - serv = start_server(test->socket_family, test->socket_type, + serv = test->ops->start_server(test->socket_family, test->socket_type, test->requested_addr, test->requested_port, 0); if (!ASSERT_GE(serv, 0, "start_server")) goto cleanup; @@ -512,16 +2503,18 @@ static void test_getsockname(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - err = cmp_local_addr(serv, &expected_addr, expected_addr_len, true); + err = cmp_sock_addr(test->ops->getsockname, serv, &expected_addr, expected_addr_len, true); if (!ASSERT_EQ(err, 0, "cmp_local_addr")) goto cleanup; cleanup: if (serv != -1) - close(serv); + test->ops->close(serv); + + return 0; } -static void test_getpeername(struct sock_addr_test *test) +static int test_getpeername(struct sock_addr_test *test) { struct sockaddr_storage addr, expected_addr; socklen_t addr_len = sizeof(struct sockaddr_storage), @@ -538,7 +2531,8 @@ static void test_getpeername(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - client = connect_to_addr(&addr, addr_len, test->socket_type); + client = test->ops->connect_to_addr(test->socket_type, &addr, addr_len, + NULL); if (!ASSERT_GE(client, 0, "connect_to_addr")) goto cleanup; @@ -547,19 +2541,58 @@ static void test_getpeername(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - err = cmp_peer_addr(client, &expected_addr, expected_addr_len, true); + err = cmp_sock_addr(test->ops->getpeername, client, &expected_addr, + expected_addr_len, true); if (!ASSERT_EQ(err, 0, "cmp_peer_addr")) goto cleanup; cleanup: if (client != -1) - close(client); + test->ops->close(client); if (serv != -1) close(serv); + + return 0; +} + +static int setup_test_env(struct nstoken **tok) +{ + int err; + + SYS_NOFAIL("ip netns delete %s", TEST_NS); + SYS(fail, "ip netns add %s", TEST_NS); + *tok = open_netns(TEST_NS); + if (!ASSERT_OK_PTR(*tok, "netns token")) + goto fail; + + SYS(fail, "ip link add dev %s1 type veth peer name %s2", TEST_IF_PREFIX, + TEST_IF_PREFIX); + SYS(fail, "ip link set lo up"); + SYS(fail, "ip link set %s1 up", TEST_IF_PREFIX); + SYS(fail, "ip link set %s2 up", TEST_IF_PREFIX); + SYS(fail, "ip -4 addr add %s/8 dev %s1", TEST_IPV4, TEST_IF_PREFIX); + SYS(fail, "ip -6 addr add %s/128 nodad dev %s1", TEST_IPV6, TEST_IF_PREFIX); + + err = 0; + goto out; +fail: + err = -1; + close_netns(*tok); + *tok = NULL; + SYS_NOFAIL("ip netns delete %s", TEST_NS); +out: + return err; +} + +static void cleanup_test_env(struct nstoken *tok) +{ + close_netns(tok); + SYS_NOFAIL("ip netns delete %s", TEST_NS); } void test_sock_addr(void) { + struct nstoken *tok = NULL; int cgroup_fd = -1; void *skel; @@ -567,13 +2600,22 @@ void test_sock_addr(void) if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup")) goto cleanup; + if (!ASSERT_OK(setup_test_env(&tok), "setup_test_env")) + goto cleanup; + + if (!ASSERT_OK(load_sock_addr_kern(), "load_sock_addr_kern")) + goto cleanup; + for (size_t i = 0; i < ARRAY_SIZE(tests); ++i) { struct sock_addr_test *test = &tests[i]; + int err; if (!test__start_subtest(test->name)) continue; - skel = test->loadfn(cgroup_fd); + skel = test->loadfn(cgroup_fd, test->attach_type, + test->expected_result == LOAD_REJECT || + test->expected_result == ATTACH_REJECT); if (!skel) continue; @@ -583,30 +2625,39 @@ void test_sock_addr(void) * the future. */ case SOCK_ADDR_TEST_BIND: - test_bind(test); + err = test_bind(test); break; case SOCK_ADDR_TEST_CONNECT: - test_connect(test); + err = test_connect(test); break; case SOCK_ADDR_TEST_SENDMSG: case SOCK_ADDR_TEST_RECVMSG: - test_xmsg(test); + err = test_xmsg(test); break; case SOCK_ADDR_TEST_GETSOCKNAME: - test_getsockname(test); + err = test_getsockname(test); break; case SOCK_ADDR_TEST_GETPEERNAME: - test_getpeername(test); + err = test_getpeername(test); break; default: ASSERT_TRUE(false, "Unknown sock addr test type"); break; } + if (test->expected_result == SYSCALL_EPERM) + ASSERT_EQ(err, EPERM, "socket operation returns EPERM"); + else if (test->expected_result == SYSCALL_ENOTSUPP) + ASSERT_EQ(err, ENOTSUPP, "socket operation returns ENOTSUPP"); + else if (test->expected_result == SUCCESS) + ASSERT_OK(err, "socket operation succeeds"); + test->destroyfn(skel); } cleanup: + unload_sock_addr_kern(); + cleanup_test_env(tok); if (cgroup_fd >= 0) close(cgroup_fd); } diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c index 77e26ecffa9d..1337153eb0ad 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c @@ -131,6 +131,65 @@ out: test_skmsg_load_helpers__destroy(skel); } +static void test_skmsg_helpers_with_link(enum bpf_map_type map_type) +{ + struct bpf_program *prog, *prog_clone, *prog_clone2; + DECLARE_LIBBPF_OPTS(bpf_link_update_opts, opts); + struct test_skmsg_load_helpers *skel; + struct bpf_link *link, *link2; + int err, map; + + skel = test_skmsg_load_helpers__open_and_load(); + if (!ASSERT_OK_PTR(skel, "test_skmsg_load_helpers__open_and_load")) + return; + + prog = skel->progs.prog_msg_verdict; + prog_clone = skel->progs.prog_msg_verdict_clone; + prog_clone2 = skel->progs.prog_msg_verdict_clone2; + map = bpf_map__fd(skel->maps.sock_map); + + link = bpf_program__attach_sockmap(prog, map); + if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap")) + goto out; + + /* Fail since bpf_link for the same prog has been created. */ + err = bpf_prog_attach(bpf_program__fd(prog), map, BPF_SK_MSG_VERDICT, 0); + if (!ASSERT_ERR(err, "bpf_prog_attach")) + goto out; + + /* Fail since bpf_link for the same prog type has been created. */ + link2 = bpf_program__attach_sockmap(prog_clone, map); + if (!ASSERT_ERR_PTR(link2, "bpf_program__attach_sockmap")) { + bpf_link__detach(link2); + goto out; + } + + err = bpf_link__update_program(link, prog_clone); + if (!ASSERT_OK(err, "bpf_link__update_program")) + goto out; + + /* Fail since a prog with different type attempts to do update. */ + err = bpf_link__update_program(link, skel->progs.prog_skb_verdict); + if (!ASSERT_ERR(err, "bpf_link__update_program")) + goto out; + + /* Fail since the old prog does not match the one in the kernel. */ + opts.old_prog_fd = bpf_program__fd(prog_clone2); + opts.flags = BPF_F_REPLACE; + err = bpf_link_update(bpf_link__fd(link), bpf_program__fd(prog), &opts); + if (!ASSERT_ERR(err, "bpf_link_update")) + goto out; + + opts.old_prog_fd = bpf_program__fd(prog_clone); + opts.flags = BPF_F_REPLACE; + err = bpf_link_update(bpf_link__fd(link), bpf_program__fd(prog), &opts); + if (!ASSERT_OK(err, "bpf_link_update")) + goto out; +out: + bpf_link__detach(link); + test_skmsg_load_helpers__destroy(skel); +} + static void test_sockmap_update(enum bpf_map_type map_type) { int err, prog, src; @@ -298,6 +357,40 @@ out: test_sockmap_skb_verdict_attach__destroy(skel); } +static void test_sockmap_skb_verdict_attach_with_link(void) +{ + struct test_sockmap_skb_verdict_attach *skel; + struct bpf_program *prog; + struct bpf_link *link; + int err, map; + + skel = test_sockmap_skb_verdict_attach__open_and_load(); + if (!ASSERT_OK_PTR(skel, "open_and_load")) + return; + prog = skel->progs.prog_skb_verdict; + map = bpf_map__fd(skel->maps.sock_map); + link = bpf_program__attach_sockmap(prog, map); + if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap")) + goto out; + + bpf_link__detach(link); + + err = bpf_prog_attach(bpf_program__fd(prog), map, BPF_SK_SKB_STREAM_VERDICT, 0); + if (!ASSERT_OK(err, "bpf_prog_attach")) + goto out; + + /* Fail since attaching with the same prog/map has been done. */ + link = bpf_program__attach_sockmap(prog, map); + if (!ASSERT_ERR_PTR(link, "bpf_program__attach_sockmap")) + bpf_link__detach(link); + + err = bpf_prog_detach2(bpf_program__fd(prog), map, BPF_SK_SKB_STREAM_VERDICT); + if (!ASSERT_OK(err, "bpf_prog_detach2")) + goto out; +out: + test_sockmap_skb_verdict_attach__destroy(skel); +} + static __u32 query_prog_id(int prog_fd) { struct bpf_prog_info info = {}; @@ -475,30 +568,19 @@ out: test_sockmap_drop_prog__destroy(drop); } -static void test_sockmap_skb_verdict_peek(void) +static void test_sockmap_skb_verdict_peek_helper(int map) { - int err, map, verdict, s, c1, p1, zero = 0, sent, recvd, avail; - struct test_sockmap_pass_prog *pass; + int err, s, c1, p1, zero = 0, sent, recvd, avail; char snd[256] = "0123456789"; char rcv[256] = "0"; - pass = test_sockmap_pass_prog__open_and_load(); - if (!ASSERT_OK_PTR(pass, "open_and_load")) - return; - verdict = bpf_program__fd(pass->progs.prog_skb_verdict); - map = bpf_map__fd(pass->maps.sock_map_rx); - - err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0); - if (!ASSERT_OK(err, "bpf_prog_attach")) - goto out; - s = socket_loopback(AF_INET, SOCK_STREAM); if (!ASSERT_GT(s, -1, "socket_loopback(s)")) - goto out; + return; err = create_pair(s, AF_INET, SOCK_STREAM, &c1, &p1); if (!ASSERT_OK(err, "create_pairs(s)")) - goto out; + return; err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST); if (!ASSERT_OK(err, "bpf_map_update_elem(c1)")) @@ -520,7 +602,58 @@ static void test_sockmap_skb_verdict_peek(void) out_close: close(c1); close(p1); +} + +static void test_sockmap_skb_verdict_peek(void) +{ + struct test_sockmap_pass_prog *pass; + int err, map, verdict; + + pass = test_sockmap_pass_prog__open_and_load(); + if (!ASSERT_OK_PTR(pass, "open_and_load")) + return; + verdict = bpf_program__fd(pass->progs.prog_skb_verdict); + map = bpf_map__fd(pass->maps.sock_map_rx); + + err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0); + if (!ASSERT_OK(err, "bpf_prog_attach")) + goto out; + + test_sockmap_skb_verdict_peek_helper(map); + +out: + test_sockmap_pass_prog__destroy(pass); +} + +static void test_sockmap_skb_verdict_peek_with_link(void) +{ + struct test_sockmap_pass_prog *pass; + struct bpf_program *prog; + struct bpf_link *link; + int err, map; + + pass = test_sockmap_pass_prog__open_and_load(); + if (!ASSERT_OK_PTR(pass, "open_and_load")) + return; + prog = pass->progs.prog_skb_verdict; + map = bpf_map__fd(pass->maps.sock_map_rx); + link = bpf_program__attach_sockmap(prog, map); + if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap")) + goto out; + + err = bpf_link__update_program(link, pass->progs.prog_skb_verdict_clone); + if (!ASSERT_OK(err, "bpf_link__update_program")) + goto out; + + /* Fail since a prog with different attach type attempts to do update. */ + err = bpf_link__update_program(link, pass->progs.prog_skb_parser); + if (!ASSERT_ERR(err, "bpf_link__update_program")) + goto out; + + test_sockmap_skb_verdict_peek_helper(map); + ASSERT_EQ(pass->bss->clone_called, 1, "clone_called"); out: + bpf_link__detach(link); test_sockmap_pass_prog__destroy(pass); } @@ -788,6 +921,8 @@ void test_sockmap_basic(void) test_sockmap_skb_verdict_attach(BPF_SK_SKB_STREAM_VERDICT, BPF_SK_SKB_VERDICT); } + if (test__start_subtest("sockmap skb_verdict attach_with_link")) + test_sockmap_skb_verdict_attach_with_link(); if (test__start_subtest("sockmap msg_verdict progs query")) test_sockmap_progs_query(BPF_SK_MSG_VERDICT); if (test__start_subtest("sockmap stream_parser progs query")) @@ -804,6 +939,8 @@ void test_sockmap_basic(void) test_sockmap_skb_verdict_fionread(false); if (test__start_subtest("sockmap skb_verdict msg_f_peek")) test_sockmap_skb_verdict_peek(); + if (test__start_subtest("sockmap skb_verdict msg_f_peek with link")) + test_sockmap_skb_verdict_peek_with_link(); if (test__start_subtest("sockmap unconnected af_unix")) test_sockmap_unconnected_unix(); if (test__start_subtest("sockmap one socket to many map entries")) @@ -812,4 +949,8 @@ void test_sockmap_basic(void) test_sockmap_many_maps(); if (test__start_subtest("sockmap same socket replace")) test_sockmap_same_sock(); + if (test__start_subtest("sockmap sk_msg attach sockmap helpers with link")) + test_skmsg_helpers_with_link(BPF_MAP_TYPE_SOCKMAP); + if (test__start_subtest("sockhash sk_msg attach sockhash helpers with link")) + test_skmsg_helpers_with_link(BPF_MAP_TYPE_SOCKHASH); } diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c index a92807bfcd13..e91b59366030 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c @@ -767,6 +767,24 @@ static void test_msg_redir_to_connected(struct test_sockmap_listen *skel, xbpf_prog_detach2(verdict, sock_map, BPF_SK_MSG_VERDICT); } +static void test_msg_redir_to_connected_with_link(struct test_sockmap_listen *skel, + struct bpf_map *inner_map, int family, + int sotype) +{ + int prog_msg_verdict = bpf_program__fd(skel->progs.prog_msg_verdict); + int verdict_map = bpf_map__fd(skel->maps.verdict_map); + int sock_map = bpf_map__fd(inner_map); + int link_fd; + + link_fd = bpf_link_create(prog_msg_verdict, sock_map, BPF_SK_MSG_VERDICT, NULL); + if (!ASSERT_GE(link_fd, 0, "bpf_link_create")) + return; + + redir_to_connected(family, sotype, sock_map, verdict_map, REDIR_EGRESS); + + close(link_fd); +} + static void redir_to_listening(int family, int sotype, int sock_mapfd, int verd_mapfd, enum redir_mode mode) { @@ -869,6 +887,24 @@ static void test_msg_redir_to_listening(struct test_sockmap_listen *skel, xbpf_prog_detach2(verdict, sock_map, BPF_SK_MSG_VERDICT); } +static void test_msg_redir_to_listening_with_link(struct test_sockmap_listen *skel, + struct bpf_map *inner_map, int family, + int sotype) +{ + struct bpf_program *verdict = skel->progs.prog_msg_verdict; + int verdict_map = bpf_map__fd(skel->maps.verdict_map); + int sock_map = bpf_map__fd(inner_map); + struct bpf_link *link; + + link = bpf_program__attach_sockmap(verdict, sock_map); + if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap")) + return; + + redir_to_listening(family, sotype, sock_map, verdict_map, REDIR_EGRESS); + + bpf_link__detach(link); +} + static void redir_partial(int family, int sotype, int sock_map, int parser_map) { int s, c0 = -1, c1 = -1, p0 = -1, p1 = -1; @@ -1316,7 +1352,9 @@ static void test_redir(struct test_sockmap_listen *skel, struct bpf_map *map, TEST(test_skb_redir_to_listening), TEST(test_skb_redir_partial), TEST(test_msg_redir_to_connected), + TEST(test_msg_redir_to_connected_with_link), TEST(test_msg_redir_to_listening), + TEST(test_msg_redir_to_listening_with_link), }; const char *family_name, *map_name; const struct redir_test *t; diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt.c b/tools/testing/selftests/bpf/prog_tests/sockopt.c index 5a4491d4edfe..eaac83a7f388 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockopt.c +++ b/tools/testing/selftests/bpf/prog_tests/sockopt.c @@ -24,6 +24,7 @@ enum sockopt_test_error { static struct sockopt_test { const char *descr; const struct bpf_insn insns[64]; + enum bpf_prog_type prog_type; enum bpf_attach_type attach_type; enum bpf_attach_type expected_attach_type; @@ -928,9 +929,40 @@ static struct sockopt_test { .error = EPERM_SETSOCKOPT, }, + + /* ==================== prog_type ==================== */ + + { + .descr = "can attach only BPF_CGROUP_SETSOCKOP", + .insns = { + /* return 1 */ + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_EXIT_INSN(), + + }, + .prog_type = BPF_PROG_TYPE_CGROUP_SKB, + .attach_type = BPF_CGROUP_SETSOCKOPT, + .expected_attach_type = 0, + .error = DENY_ATTACH, + }, + + { + .descr = "can attach only BPF_CGROUP_GETSOCKOP", + .insns = { + /* return 1 */ + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_EXIT_INSN(), + + }, + .prog_type = BPF_PROG_TYPE_CGROUP_SKB, + .attach_type = BPF_CGROUP_GETSOCKOPT, + .expected_attach_type = 0, + .error = DENY_ATTACH, + }, }; static int load_prog(const struct bpf_insn *insns, + enum bpf_prog_type prog_type, enum bpf_attach_type expected_attach_type) { LIBBPF_OPTS(bpf_prog_load_opts, opts, @@ -947,7 +979,7 @@ static int load_prog(const struct bpf_insn *insns, } insns_cnt++; - fd = bpf_prog_load(BPF_PROG_TYPE_CGROUP_SOCKOPT, NULL, "GPL", insns, insns_cnt, &opts); + fd = bpf_prog_load(prog_type, NULL, "GPL", insns, insns_cnt, &opts); if (verbose && fd < 0) fprintf(stderr, "%s\n", bpf_log_buf); @@ -1036,13 +1068,18 @@ static int call_getsockopt(bool use_io_uring, int fd, int level, int optname, return getsockopt(fd, level, optname, optval, optlen); } -static int run_test(int cgroup_fd, struct sockopt_test *test, bool use_io_uring) +static int run_test(int cgroup_fd, struct sockopt_test *test, bool use_io_uring, + bool use_link) { - int sock_fd, err, prog_fd; + int prog_type = BPF_PROG_TYPE_CGROUP_SOCKOPT; + int sock_fd, err, prog_fd, link_fd = -1; void *optval = NULL; int ret = 0; - prog_fd = load_prog(test->insns, test->expected_attach_type); + if (test->prog_type) + prog_type = test->prog_type; + + prog_fd = load_prog(test->insns, prog_type, test->expected_attach_type); if (prog_fd < 0) { if (test->error == DENY_LOAD) return 0; @@ -1051,7 +1088,12 @@ static int run_test(int cgroup_fd, struct sockopt_test *test, bool use_io_uring) return -1; } - err = bpf_prog_attach(prog_fd, cgroup_fd, test->attach_type, 0); + if (use_link) { + err = bpf_link_create(prog_fd, cgroup_fd, test->attach_type, NULL); + link_fd = err; + } else { + err = bpf_prog_attach(prog_fd, cgroup_fd, test->attach_type, 0); + } if (err < 0) { if (test->error == DENY_ATTACH) goto close_prog_fd; @@ -1142,7 +1184,12 @@ free_optval: close_sock_fd: close(sock_fd); detach_prog: - bpf_prog_detach2(prog_fd, cgroup_fd, test->attach_type); + if (use_link) { + if (link_fd >= 0) + close(link_fd); + } else { + bpf_prog_detach2(prog_fd, cgroup_fd, test->attach_type); + } close_prog_fd: close(prog_fd); return ret; @@ -1160,10 +1207,12 @@ void test_sockopt(void) if (!test__start_subtest(tests[i].descr)) continue; - ASSERT_OK(run_test(cgroup_fd, &tests[i], false), + ASSERT_OK(run_test(cgroup_fd, &tests[i], false, false), + tests[i].descr); + ASSERT_OK(run_test(cgroup_fd, &tests[i], false, true), tests[i].descr); if (tests[i].io_uring_support) - ASSERT_OK(run_test(cgroup_fd, &tests[i], true), + ASSERT_OK(run_test(cgroup_fd, &tests[i], true, false), tests[i].descr); } diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c b/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c index 917f486db826..1d3a20f01b60 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c +++ b/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <test_progs.h> #include "cgroup_helpers.h" +#include "network_helpers.h" #include "sockopt_inherit.skel.h" @@ -9,35 +10,6 @@ #define CUSTOM_INHERIT2 1 #define CUSTOM_LISTENER 2 -static int connect_to_server(int server_fd) -{ - struct sockaddr_storage addr; - socklen_t len = sizeof(addr); - int fd; - - fd = socket(AF_INET, SOCK_STREAM, 0); - if (fd < 0) { - log_err("Failed to create client socket"); - return -1; - } - - if (getsockname(server_fd, (struct sockaddr *)&addr, &len)) { - log_err("Failed to get server addr"); - goto out; - } - - if (connect(fd, (const struct sockaddr *)&addr, len) < 0) { - log_err("Fail to connect to server"); - goto out; - } - - return fd; - -out: - close(fd); - return -1; -} - static int verify_sockopt(int fd, int optname, const char *msg, char expected) { socklen_t optlen = 1; @@ -98,47 +70,36 @@ static void *server_thread(void *arg) return (void *)(long)err; } -static int start_server(void) +static int custom_cb(int fd, const struct post_socket_opts *opts) { - struct sockaddr_in addr = { - .sin_family = AF_INET, - .sin_addr.s_addr = htonl(INADDR_LOOPBACK), - }; char buf; int err; - int fd; int i; - fd = socket(AF_INET, SOCK_STREAM, 0); - if (fd < 0) { - log_err("Failed to create server socket"); - return -1; - } - for (i = CUSTOM_INHERIT1; i <= CUSTOM_LISTENER; i++) { buf = 0x01; err = setsockopt(fd, SOL_CUSTOM, i, &buf, 1); if (err) { log_err("Failed to call setsockopt(%d)", i); - close(fd); return -1; } } - if (bind(fd, (const struct sockaddr *)&addr, sizeof(addr)) < 0) { - log_err("Failed to bind socket"); - close(fd); - return -1; - } - - return fd; + return 0; } static void run_test(int cgroup_fd) { struct bpf_link *link_getsockopt = NULL; struct bpf_link *link_setsockopt = NULL; + struct network_helper_opts opts = { + .post_socket_cb = custom_cb, + }; int server_fd = -1, client_fd; + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_addr.s_addr = htonl(INADDR_LOOPBACK), + }; struct sockopt_inherit *obj; void *server_err; pthread_t tid; @@ -160,7 +121,8 @@ static void run_test(int cgroup_fd) if (!ASSERT_OK_PTR(link_setsockopt, "cg-attach-setsockopt")) goto close_bpf_object; - server_fd = start_server(); + server_fd = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr, + sizeof(addr), &opts); if (!ASSERT_GE(server_fd, 0, "start_server")) goto close_bpf_object; @@ -173,7 +135,7 @@ static void run_test(int cgroup_fd) pthread_cond_wait(&server_started, &server_started_mtx); pthread_mutex_unlock(&server_started_mtx); - client_fd = connect_to_server(server_fd); + client_fd = connect_to_fd(server_fd, 0); if (!ASSERT_GE(client_fd, 0, "connect_to_server")) goto close_server_fd; diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c index 5db9eec24b5b..0832fd787457 100644 --- a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c +++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c @@ -35,7 +35,7 @@ retry: pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */, 0 /* cpu 0 */, -1 /* group id */, 0 /* flags */); - if (pmu_fd < 0 && errno == ENOENT) { + if (pmu_fd < 0 && (errno == ENOENT || errno == EOPNOTSUPP)) { printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n", __func__); test__skip(); goto cleanup; diff --git a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c index dbe06aeaa2b2..b1073d36d77a 100644 --- a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c +++ b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c @@ -530,7 +530,7 @@ static int wait_netstamp_needed_key(void) __u64 tstamp = 0; nstoken = open_netns(NS_DST); - if (!nstoken) + if (!ASSERT_OK_PTR(nstoken, "setns dst")) return -1; srv_fd = start_server(AF_INET6, SOCK_DGRAM, "::1", 0, 0); diff --git a/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c b/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c index 8fe84da1b9b4..f2b99d95d916 100644 --- a/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c +++ b/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c @@ -10,6 +10,9 @@ struct tcp_rtt_storage { __u32 delivered; __u32 delivered_ce; __u32 icsk_retransmits; + + __u32 mrtt_us; /* args[0] */ + __u32 srtt; /* args[1] */ }; static void send_byte(int fd) @@ -83,6 +86,17 @@ static int verify_sk(int map_fd, int client_fd, const char *msg, __u32 invoked, err++; } + /* Precise values of mrtt and srtt are unavailable, just make sure they are nonzero */ + if (val.mrtt_us == 0) { + log_err("%s: unexpected bpf_tcp_sock.args[0] (mrtt_us) %u == 0", msg, val.mrtt_us); + err++; + } + + if (val.srtt == 0) { + log_err("%s: unexpected bpf_tcp_sock.args[1] (srtt) %u == 0", msg, val.srtt); + err++; + } + return err; } diff --git a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_module.c b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_module.c index ee5372c7f2c7..29e183a80f49 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_module.c +++ b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_module.c @@ -4,6 +4,8 @@ #include <time.h> #include "struct_ops_module.skel.h" +#include "struct_ops_nulled_out_cb.skel.h" +#include "struct_ops_forgotten_cb.skel.h" static void check_map_info(struct bpf_map_info *info) { @@ -66,6 +68,7 @@ static void test_struct_ops_load(void) * auto-loading, or it will fail to load. */ bpf_program__set_autoload(skel->progs.test_2, false); + bpf_map__set_autocreate(skel->maps.testmod_zeroed, false); err = struct_ops_module__load(skel); if (!ASSERT_OK(err, "struct_ops_module_load")) @@ -93,9 +96,163 @@ cleanup: struct_ops_module__destroy(skel); } +static void test_struct_ops_not_zeroed(void) +{ + struct struct_ops_module *skel; + int err; + + /* zeroed is 0, and zeroed_op is null */ + skel = struct_ops_module__open(); + if (!ASSERT_OK_PTR(skel, "struct_ops_module_open")) + return; + + skel->struct_ops.testmod_zeroed->zeroed = 0; + /* zeroed_op prog should be not loaded automatically now */ + skel->struct_ops.testmod_zeroed->zeroed_op = NULL; + + err = struct_ops_module__load(skel); + ASSERT_OK(err, "struct_ops_module_load"); + + struct_ops_module__destroy(skel); + + /* zeroed is not 0 */ + skel = struct_ops_module__open(); + if (!ASSERT_OK_PTR(skel, "struct_ops_module_open_not_zeroed")) + return; + + /* libbpf should reject the testmod_zeroed since struct + * bpf_testmod_ops in the kernel has no "zeroed" field and the + * value of "zeroed" is non-zero. + */ + skel->struct_ops.testmod_zeroed->zeroed = 0xdeadbeef; + skel->struct_ops.testmod_zeroed->zeroed_op = NULL; + err = struct_ops_module__load(skel); + ASSERT_ERR(err, "struct_ops_module_load_not_zeroed"); + + struct_ops_module__destroy(skel); + + /* zeroed_op is not null */ + skel = struct_ops_module__open(); + if (!ASSERT_OK_PTR(skel, "struct_ops_module_open_not_zeroed_op")) + return; + + /* libbpf should reject the testmod_zeroed since the value of its + * "zeroed_op" is not null. + */ + skel->struct_ops.testmod_zeroed->zeroed_op = skel->progs.test_3; + err = struct_ops_module__load(skel); + ASSERT_ERR(err, "struct_ops_module_load_not_zeroed_op"); + + struct_ops_module__destroy(skel); +} + +/* The signature of an implementation might not match the signature of the + * function pointer prototype defined in the BPF program. This mismatch + * should be allowed as long as the behavior of the operator program + * adheres to the signature in the kernel. Libbpf should not enforce the + * signature; rather, let the kernel verifier handle the enforcement. + */ +static void test_struct_ops_incompatible(void) +{ + struct struct_ops_module *skel; + struct bpf_link *link; + int err; + + skel = struct_ops_module__open(); + if (!ASSERT_OK_PTR(skel, "struct_ops_module_open")) + return; + + bpf_map__set_autocreate(skel->maps.testmod_zeroed, false); + + err = struct_ops_module__load(skel); + if (!ASSERT_OK(err, "skel_load")) + goto cleanup; + + link = bpf_map__attach_struct_ops(skel->maps.testmod_incompatible); + if (ASSERT_OK_PTR(link, "attach_struct_ops")) + bpf_link__destroy(link); + +cleanup: + struct_ops_module__destroy(skel); +} + +/* validate that it's ok to "turn off" callback that kernel supports */ +static void test_struct_ops_nulled_out_cb(void) +{ + struct struct_ops_nulled_out_cb *skel; + int err; + + skel = struct_ops_nulled_out_cb__open(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + return; + + /* kernel knows about test_1, but we still null it out */ + skel->struct_ops.ops->test_1 = NULL; + + err = struct_ops_nulled_out_cb__load(skel); + if (!ASSERT_OK(err, "skel_load")) + goto cleanup; + + ASSERT_FALSE(bpf_program__autoload(skel->progs.test_1_turn_off), "prog_autoload"); + ASSERT_LT(bpf_program__fd(skel->progs.test_1_turn_off), 0, "prog_fd"); + +cleanup: + struct_ops_nulled_out_cb__destroy(skel); +} + +/* validate that libbpf generates reasonable error message if struct_ops is + * not referenced in any struct_ops map + */ +static void test_struct_ops_forgotten_cb(void) +{ + struct struct_ops_forgotten_cb *skel; + char *log; + int err; + + skel = struct_ops_forgotten_cb__open(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + return; + + start_libbpf_log_capture(); + + err = struct_ops_forgotten_cb__load(skel); + if (!ASSERT_ERR(err, "skel_load")) + goto cleanup; + + log = stop_libbpf_log_capture(); + ASSERT_HAS_SUBSTR(log, + "prog 'test_1_forgotten': SEC(\"struct_ops\") program isn't referenced anywhere, did you forget to use it?", + "libbpf_log"); + free(log); + + struct_ops_forgotten_cb__destroy(skel); + + /* now let's programmatically use it, we should be fine now */ + skel = struct_ops_forgotten_cb__open(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + return; + + skel->struct_ops.ops->test_1 = skel->progs.test_1_forgotten; /* not anymore */ + + err = struct_ops_forgotten_cb__load(skel); + if (!ASSERT_OK(err, "skel_load")) + goto cleanup; + +cleanup: + struct_ops_forgotten_cb__destroy(skel); +} + void serial_test_struct_ops_module(void) { - if (test__start_subtest("test_struct_ops_load")) + if (test__start_subtest("struct_ops_load")) test_struct_ops_load(); + if (test__start_subtest("struct_ops_not_zeroed")) + test_struct_ops_not_zeroed(); + if (test__start_subtest("struct_ops_incompatible")) + test_struct_ops_incompatible(); + if (test__start_subtest("struct_ops_null_out_cb")) + test_struct_ops_nulled_out_cb(); + if (test__start_subtest("struct_ops_forgotten_cb")) + test_struct_ops_forgotten_cb(); } diff --git a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c index 5f1fb0a2ea56..cec746e77cd3 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c +++ b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c @@ -612,6 +612,8 @@ static void test_ipip_tunnel(enum ipip_encap encap) /* ping from at_ns0 namespace test */ nstoken = open_netns("at_ns0"); + if (!ASSERT_OK_PTR(nstoken, "setns")) + goto done; err = test_ping(AF_INET, IP4_ADDR_TUNL_DEV1); if (!ASSERT_OK(err, "test_ping")) goto done; @@ -666,6 +668,8 @@ static void test_xfrm_tunnel(void) /* ping from at_ns0 namespace test */ nstoken = open_netns("at_ns0"); + if (!ASSERT_OK_PTR(nstoken, "setns")) + goto done; err = test_ping(AF_INET, IP4_ADDR_TUNL_DEV1); close_netns(nstoken); if (!ASSERT_OK(err, "test_ping")) diff --git a/tools/testing/selftests/bpf/prog_tests/trace_printk.c b/tools/testing/selftests/bpf/prog_tests/trace_printk.c index 7b9124d506a5..e56e88596d64 100644 --- a/tools/testing/selftests/bpf/prog_tests/trace_printk.c +++ b/tools/testing/selftests/bpf/prog_tests/trace_printk.c @@ -5,18 +5,19 @@ #include "trace_printk.lskel.h" -#define TRACEFS_PIPE "/sys/kernel/tracing/trace_pipe" -#define DEBUGFS_PIPE "/sys/kernel/debug/tracing/trace_pipe" #define SEARCHMSG "testing,testing" +static void trace_pipe_cb(const char *str, void *data) +{ + if (strstr(str, SEARCHMSG) != NULL) + (*(int *)data)++; +} + void serial_test_trace_printk(void) { struct trace_printk_lskel__bss *bss; - int err = 0, iter = 0, found = 0; struct trace_printk_lskel *skel; - char *buf = NULL; - FILE *fp = NULL; - size_t buflen; + int err = 0, found = 0; skel = trace_printk_lskel__open(); if (!ASSERT_OK_PTR(skel, "trace_printk__open")) @@ -35,16 +36,6 @@ void serial_test_trace_printk(void) if (!ASSERT_OK(err, "trace_printk__attach")) goto cleanup; - if (access(TRACEFS_PIPE, F_OK) == 0) - fp = fopen(TRACEFS_PIPE, "r"); - else - fp = fopen(DEBUGFS_PIPE, "r"); - if (!ASSERT_OK_PTR(fp, "fopen(TRACE_PIPE)")) - goto cleanup; - - /* We do not want to wait forever if this test fails... */ - fcntl(fileno(fp), F_SETFL, O_NONBLOCK); - /* wait for tracepoint to trigger */ usleep(1); trace_printk_lskel__detach(skel); @@ -56,21 +47,12 @@ void serial_test_trace_printk(void) goto cleanup; /* verify our search string is in the trace buffer */ - while (getline(&buf, &buflen, fp) >= 0 || errno == EAGAIN) { - if (strstr(buf, SEARCHMSG) != NULL) - found++; - if (found == bss->trace_printk_ran) - break; - if (++iter > 1000) - break; - } + ASSERT_OK(read_trace_pipe_iter(trace_pipe_cb, &found, 1000), + "read_trace_pipe_iter"); if (!ASSERT_EQ(found, bss->trace_printk_ran, "found")) goto cleanup; cleanup: trace_printk_lskel__destroy(skel); - free(buf); - if (fp) - fclose(fp); } diff --git a/tools/testing/selftests/bpf/prog_tests/trace_vprintk.c b/tools/testing/selftests/bpf/prog_tests/trace_vprintk.c index 44ea2fd88f4c..2af6a6f2096a 100644 --- a/tools/testing/selftests/bpf/prog_tests/trace_vprintk.c +++ b/tools/testing/selftests/bpf/prog_tests/trace_vprintk.c @@ -5,18 +5,19 @@ #include "trace_vprintk.lskel.h" -#define TRACEFS_PIPE "/sys/kernel/tracing/trace_pipe" -#define DEBUGFS_PIPE "/sys/kernel/debug/tracing/trace_pipe" #define SEARCHMSG "1,2,3,4,5,6,7,8,9,10" +static void trace_pipe_cb(const char *str, void *data) +{ + if (strstr(str, SEARCHMSG) != NULL) + (*(int *)data)++; +} + void serial_test_trace_vprintk(void) { struct trace_vprintk_lskel__bss *bss; - int err = 0, iter = 0, found = 0; struct trace_vprintk_lskel *skel; - char *buf = NULL; - FILE *fp = NULL; - size_t buflen; + int err = 0, found = 0; skel = trace_vprintk_lskel__open_and_load(); if (!ASSERT_OK_PTR(skel, "trace_vprintk__open_and_load")) @@ -28,16 +29,6 @@ void serial_test_trace_vprintk(void) if (!ASSERT_OK(err, "trace_vprintk__attach")) goto cleanup; - if (access(TRACEFS_PIPE, F_OK) == 0) - fp = fopen(TRACEFS_PIPE, "r"); - else - fp = fopen(DEBUGFS_PIPE, "r"); - if (!ASSERT_OK_PTR(fp, "fopen(TRACE_PIPE)")) - goto cleanup; - - /* We do not want to wait forever if this test fails... */ - fcntl(fileno(fp), F_SETFL, O_NONBLOCK); - /* wait for tracepoint to trigger */ usleep(1); trace_vprintk_lskel__detach(skel); @@ -49,14 +40,8 @@ void serial_test_trace_vprintk(void) goto cleanup; /* verify our search string is in the trace buffer */ - while (getline(&buf, &buflen, fp) >= 0 || errno == EAGAIN) { - if (strstr(buf, SEARCHMSG) != NULL) - found++; - if (found == bss->trace_vprintk_ran) - break; - if (++iter > 1000) - break; - } + ASSERT_OK(read_trace_pipe_iter(trace_pipe_cb, &found, 1000), + "read_trace_pipe_iter"); if (!ASSERT_EQ(found, bss->trace_vprintk_ran, "found")) goto cleanup; @@ -66,7 +51,4 @@ void serial_test_trace_vprintk(void) cleanup: trace_vprintk_lskel__destroy(skel); - free(buf); - if (fp) - fclose(fp); } diff --git a/tools/testing/selftests/bpf/prog_tests/verifier.c b/tools/testing/selftests/bpf/prog_tests/verifier.c index c4f9f306646e..c60db8beeb73 100644 --- a/tools/testing/selftests/bpf/prog_tests/verifier.c +++ b/tools/testing/selftests/bpf/prog_tests/verifier.c @@ -66,6 +66,7 @@ #include "verifier_sdiv.skel.h" #include "verifier_search_pruning.skel.h" #include "verifier_sock.skel.h" +#include "verifier_sock_addr.skel.h" #include "verifier_spill_fill.skel.h" #include "verifier_spin_lock.skel.h" #include "verifier_stack_ptr.skel.h" @@ -181,6 +182,7 @@ void test_verifier_scalar_ids(void) { RUN(verifier_scalar_ids); } void test_verifier_sdiv(void) { RUN(verifier_sdiv); } void test_verifier_search_pruning(void) { RUN(verifier_search_pruning); } void test_verifier_sock(void) { RUN(verifier_sock); } +void test_verifier_sock_addr(void) { RUN(verifier_sock_addr); } void test_verifier_spill_fill(void) { RUN(verifier_spill_fill); } void test_verifier_spin_lock(void) { RUN(verifier_spin_lock); } void test_verifier_stack_ptr(void) { RUN(verifier_stack_ptr); } diff --git a/tools/testing/selftests/bpf/prog_tests/verifier_kfunc_prog_types.c b/tools/testing/selftests/bpf/prog_tests/verifier_kfunc_prog_types.c new file mode 100644 index 000000000000..3918ecc2ee91 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/verifier_kfunc_prog_types.c @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ + +#include <test_progs.h> + +#include "verifier_kfunc_prog_types.skel.h" + +void test_verifier_kfunc_prog_types(void) +{ + RUN_TESTS(verifier_kfunc_prog_types); +} diff --git a/tools/testing/selftests/bpf/prog_tests/wq.c b/tools/testing/selftests/bpf/prog_tests/wq.c new file mode 100644 index 000000000000..99e438fe12ac --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/wq.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Benjamin Tissoires */ +#include <test_progs.h> +#include "wq.skel.h" +#include "wq_failures.skel.h" + +void serial_test_wq(void) +{ + struct wq *wq_skel = NULL; + int err, prog_fd; + + LIBBPF_OPTS(bpf_test_run_opts, topts); + + RUN_TESTS(wq); + + /* re-run the success test to check if the timer was actually executed */ + + wq_skel = wq__open_and_load(); + if (!ASSERT_OK_PTR(wq_skel, "wq_skel_load")) + return; + + err = wq__attach(wq_skel); + if (!ASSERT_OK(err, "wq_attach")) + return; + + prog_fd = bpf_program__fd(wq_skel->progs.test_syscall_array_sleepable); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(topts.retval, 0, "test_run"); + + usleep(50); /* 10 usecs should be enough, but give it extra */ + + ASSERT_EQ(wq_skel->bss->ok_sleepable, (1 << 1), "ok_sleepable"); + wq__destroy(wq_skel); +} + +void serial_test_failures_wq(void) +{ + RUN_TESTS(wq_failures); +} diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c b/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c index 498d3bdaa4b0..bad0ea167be7 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c @@ -107,8 +107,8 @@ void test_xdp_do_redirect(void) .attach_point = BPF_TC_INGRESS); memcpy(&data[sizeof(__u64)], &pkt_udp, sizeof(pkt_udp)); - *((__u32 *)data) = 0x42; /* metadata test value */ - *((__u32 *)data + 4) = 0; + ((__u32 *)data)[0] = 0x42; /* metadata test value */ + ((__u32 *)data)[1] = 0; skel = test_xdp_do_redirect__open(); if (!ASSERT_OK_PTR(skel, "skel")) diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c index 05edcf32f528..f76b5d67a3ee 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c @@ -384,6 +384,8 @@ void test_xdp_metadata(void) SYS(out, "ip netns add " RX_NETNS_NAME); tok = open_netns(TX_NETNS_NAME); + if (!ASSERT_OK_PTR(tok, "setns")) + goto out; SYS(out, "ip link add numtxqueues 1 numrxqueues 1 " TX_NAME " type veth peer " RX_NAME " numtxqueues 1 numrxqueues 1"); SYS(out, "ip link set " RX_NAME " netns " RX_NETNS_NAME); @@ -400,6 +402,8 @@ void test_xdp_metadata(void) SYS(out, "ip -4 neigh add " RX_ADDR " lladdr " RX_MAC " dev " TX_NAME_VLAN); switch_ns_to_rx(&tok); + if (!ASSERT_OK_PTR(tok, "setns rx")) + goto out; SYS(out, "ip link set dev " RX_NAME " address " RX_MAC); SYS(out, "ip link set dev " RX_NAME " up"); @@ -449,6 +453,8 @@ void test_xdp_metadata(void) goto out; switch_ns_to_tx(&tok); + if (!ASSERT_OK_PTR(tok, "setns tx")) + goto out; /* Setup separate AF_XDP for TX interface nad send packet to the RX socket. */ tx_ifindex = if_nametoindex(TX_NAME); @@ -461,6 +467,8 @@ void test_xdp_metadata(void) goto out; switch_ns_to_rx(&tok); + if (!ASSERT_OK_PTR(tok, "setns rx")) + goto out; /* Verify packet sent from AF_XDP has proper metadata. */ if (!ASSERT_GE(verify_xsk_metadata(&rx_xsk, true), 0, @@ -468,6 +476,8 @@ void test_xdp_metadata(void) goto out; switch_ns_to_tx(&tok); + if (!ASSERT_OK_PTR(tok, "setns tx")) + goto out; complete_tx(&tx_xsk); /* Now check metadata of packet, generated with network stack */ @@ -475,6 +485,8 @@ void test_xdp_metadata(void) goto out; switch_ns_to_rx(&tok); + if (!ASSERT_OK_PTR(tok, "setns rx")) + goto out; if (!ASSERT_GE(verify_xsk_metadata(&rx_xsk, false), 0, "verify_xsk_metadata")) @@ -498,6 +510,8 @@ void test_xdp_metadata(void) goto out; switch_ns_to_tx(&tok); + if (!ASSERT_OK_PTR(tok, "setns tx")) + goto out; /* Send packet to trigger . */ if (!ASSERT_GE(generate_packet(&tx_xsk, AF_XDP_CONSUMER_PORT), 0, @@ -505,6 +519,8 @@ void test_xdp_metadata(void) goto out; switch_ns_to_rx(&tok); + if (!ASSERT_OK_PTR(tok, "setns rx")) + goto out; while (!retries--) { if (bpf_obj2->bss->called) diff --git a/tools/testing/selftests/bpf/progs/arena_atomics.c b/tools/testing/selftests/bpf/progs/arena_atomics.c new file mode 100644 index 000000000000..55f10563208d --- /dev/null +++ b/tools/testing/selftests/bpf/progs/arena_atomics.c @@ -0,0 +1,178 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include <stdbool.h> +#include "bpf_arena_common.h" + +struct { + __uint(type, BPF_MAP_TYPE_ARENA); + __uint(map_flags, BPF_F_MMAPABLE); + __uint(max_entries, 10); /* number of pages */ +#ifdef __TARGET_ARCH_arm64 + __ulong(map_extra, 0x1ull << 32); /* start of mmap() region */ +#else + __ulong(map_extra, 0x1ull << 44); /* start of mmap() region */ +#endif +} arena SEC(".maps"); + +#if defined(ENABLE_ATOMICS_TESTS) && defined(__BPF_FEATURE_ADDR_SPACE_CAST) +bool skip_tests __attribute((__section__(".data"))) = false; +#else +bool skip_tests = true; +#endif + +__u32 pid = 0; + +#undef __arena +#if defined(__BPF_FEATURE_ADDR_SPACE_CAST) +#define __arena __attribute__((address_space(1))) +#else +#define __arena SEC(".addr_space.1") +#endif + +__u64 __arena add64_value = 1; +__u64 __arena add64_result = 0; +__u32 __arena add32_value = 1; +__u32 __arena add32_result = 0; +__u64 __arena add_stack_value_copy = 0; +__u64 __arena add_stack_result = 0; +__u64 __arena add_noreturn_value = 1; + +SEC("raw_tp/sys_enter") +int add(const void *ctx) +{ + if (pid != (bpf_get_current_pid_tgid() >> 32)) + return 0; +#ifdef ENABLE_ATOMICS_TESTS + __u64 add_stack_value = 1; + + add64_result = __sync_fetch_and_add(&add64_value, 2); + add32_result = __sync_fetch_and_add(&add32_value, 2); + add_stack_result = __sync_fetch_and_add(&add_stack_value, 2); + add_stack_value_copy = add_stack_value; + __sync_fetch_and_add(&add_noreturn_value, 2); +#endif + + return 0; +} + +__s64 __arena sub64_value = 1; +__s64 __arena sub64_result = 0; +__s32 __arena sub32_value = 1; +__s32 __arena sub32_result = 0; +__s64 __arena sub_stack_value_copy = 0; +__s64 __arena sub_stack_result = 0; +__s64 __arena sub_noreturn_value = 1; + +SEC("raw_tp/sys_enter") +int sub(const void *ctx) +{ + if (pid != (bpf_get_current_pid_tgid() >> 32)) + return 0; +#ifdef ENABLE_ATOMICS_TESTS + __u64 sub_stack_value = 1; + + sub64_result = __sync_fetch_and_sub(&sub64_value, 2); + sub32_result = __sync_fetch_and_sub(&sub32_value, 2); + sub_stack_result = __sync_fetch_and_sub(&sub_stack_value, 2); + sub_stack_value_copy = sub_stack_value; + __sync_fetch_and_sub(&sub_noreturn_value, 2); +#endif + + return 0; +} + +__u64 __arena and64_value = (0x110ull << 32); +__u32 __arena and32_value = 0x110; + +SEC("raw_tp/sys_enter") +int and(const void *ctx) +{ + if (pid != (bpf_get_current_pid_tgid() >> 32)) + return 0; +#ifdef ENABLE_ATOMICS_TESTS + + __sync_fetch_and_and(&and64_value, 0x011ull << 32); + __sync_fetch_and_and(&and32_value, 0x011); +#endif + + return 0; +} + +__u32 __arena or32_value = 0x110; +__u64 __arena or64_value = (0x110ull << 32); + +SEC("raw_tp/sys_enter") +int or(const void *ctx) +{ + if (pid != (bpf_get_current_pid_tgid() >> 32)) + return 0; +#ifdef ENABLE_ATOMICS_TESTS + __sync_fetch_and_or(&or64_value, 0x011ull << 32); + __sync_fetch_and_or(&or32_value, 0x011); +#endif + + return 0; +} + +__u64 __arena xor64_value = (0x110ull << 32); +__u32 __arena xor32_value = 0x110; + +SEC("raw_tp/sys_enter") +int xor(const void *ctx) +{ + if (pid != (bpf_get_current_pid_tgid() >> 32)) + return 0; +#ifdef ENABLE_ATOMICS_TESTS + __sync_fetch_and_xor(&xor64_value, 0x011ull << 32); + __sync_fetch_and_xor(&xor32_value, 0x011); +#endif + + return 0; +} + +__u32 __arena cmpxchg32_value = 1; +__u32 __arena cmpxchg32_result_fail = 0; +__u32 __arena cmpxchg32_result_succeed = 0; +__u64 __arena cmpxchg64_value = 1; +__u64 __arena cmpxchg64_result_fail = 0; +__u64 __arena cmpxchg64_result_succeed = 0; + +SEC("raw_tp/sys_enter") +int cmpxchg(const void *ctx) +{ + if (pid != (bpf_get_current_pid_tgid() >> 32)) + return 0; +#ifdef ENABLE_ATOMICS_TESTS + cmpxchg64_result_fail = __sync_val_compare_and_swap(&cmpxchg64_value, 0, 3); + cmpxchg64_result_succeed = __sync_val_compare_and_swap(&cmpxchg64_value, 1, 2); + + cmpxchg32_result_fail = __sync_val_compare_and_swap(&cmpxchg32_value, 0, 3); + cmpxchg32_result_succeed = __sync_val_compare_and_swap(&cmpxchg32_value, 1, 2); +#endif + + return 0; +} + +__u64 __arena xchg64_value = 1; +__u64 __arena xchg64_result = 0; +__u32 __arena xchg32_value = 1; +__u32 __arena xchg32_result = 0; + +SEC("raw_tp/sys_enter") +int xchg(const void *ctx) +{ + if (pid != (bpf_get_current_pid_tgid() >> 32)) + return 0; +#ifdef ENABLE_ATOMICS_TESTS + __u64 val64 = 2; + __u32 val32 = 2; + + xchg64_result = __sync_lock_test_and_set(&xchg64_value, val64); + xchg32_result = __sync_lock_test_and_set(&xchg32_value, val32); +#endif + + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/arena_list.c b/tools/testing/selftests/bpf/progs/arena_list.c index c0422c58cee2..93bd0600eba0 100644 --- a/tools/testing/selftests/bpf/progs/arena_list.c +++ b/tools/testing/selftests/bpf/progs/arena_list.c @@ -49,7 +49,7 @@ int arena_list_add(void *ctx) list_head = &global_head; - for (i = zero; i < cnt; cond_break, i++) { + for (i = zero; i < cnt && can_loop; i++) { struct elem __arena *n = bpf_alloc(sizeof(*n)); test_val++; diff --git a/tools/testing/selftests/bpf/progs/bench_local_storage_create.c b/tools/testing/selftests/bpf/progs/bench_local_storage_create.c index e4bfbba6c193..c8ec0d0368e4 100644 --- a/tools/testing/selftests/bpf/progs/bench_local_storage_create.c +++ b/tools/testing/selftests/bpf/progs/bench_local_storage_create.c @@ -61,14 +61,15 @@ SEC("lsm.s/socket_post_create") int BPF_PROG(socket_post_create, struct socket *sock, int family, int type, int protocol, int kern) { + struct sock *sk = sock->sk; struct storage *stg; __u32 pid; pid = bpf_get_current_pid_tgid() >> 32; - if (pid != bench_pid) + if (pid != bench_pid || !sk) return 0; - stg = bpf_sk_storage_get(&sk_storage_map, sock->sk, NULL, + stg = bpf_sk_storage_get(&sk_storage_map, sk, NULL, BPF_LOCAL_STORAGE_GET_F_CREATE); if (stg) diff --git a/tools/testing/selftests/bpf/progs/bind4_prog.c b/tools/testing/selftests/bpf/progs/bind4_prog.c index a487f60b73ac..b7ddf8ec4ee8 100644 --- a/tools/testing/selftests/bpf/progs/bind4_prog.c +++ b/tools/testing/selftests/bpf/progs/bind4_prog.c @@ -12,6 +12,8 @@ #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> +#include "bind_prog.h" + #define SERV4_IP 0xc0a801feU /* 192.168.1.254 */ #define SERV4_PORT 4040 #define SERV4_REWRITE_IP 0x7f000001U /* 127.0.0.1 */ @@ -118,23 +120,23 @@ int bind_v4_prog(struct bpf_sock_addr *ctx) // u8 narrow loads: user_ip4 = 0; - user_ip4 |= ((volatile __u8 *)&ctx->user_ip4)[0] << 0; - user_ip4 |= ((volatile __u8 *)&ctx->user_ip4)[1] << 8; - user_ip4 |= ((volatile __u8 *)&ctx->user_ip4)[2] << 16; - user_ip4 |= ((volatile __u8 *)&ctx->user_ip4)[3] << 24; + user_ip4 |= load_byte(ctx->user_ip4, 0, sizeof(user_ip4)); + user_ip4 |= load_byte(ctx->user_ip4, 1, sizeof(user_ip4)); + user_ip4 |= load_byte(ctx->user_ip4, 2, sizeof(user_ip4)); + user_ip4 |= load_byte(ctx->user_ip4, 3, sizeof(user_ip4)); if (ctx->user_ip4 != user_ip4) return 0; user_port = 0; - user_port |= ((volatile __u8 *)&ctx->user_port)[0] << 0; - user_port |= ((volatile __u8 *)&ctx->user_port)[1] << 8; + user_port |= load_byte(ctx->user_port, 0, sizeof(user_port)); + user_port |= load_byte(ctx->user_port, 1, sizeof(user_port)); if (ctx->user_port != user_port) return 0; // u16 narrow loads: user_ip4 = 0; - user_ip4 |= ((volatile __u16 *)&ctx->user_ip4)[0] << 0; - user_ip4 |= ((volatile __u16 *)&ctx->user_ip4)[1] << 16; + user_ip4 |= load_word(ctx->user_ip4, 0, sizeof(user_ip4)); + user_ip4 |= load_word(ctx->user_ip4, 1, sizeof(user_ip4)); if (ctx->user_ip4 != user_ip4) return 0; @@ -156,4 +158,10 @@ int bind_v4_prog(struct bpf_sock_addr *ctx) return 1; } +SEC("cgroup/bind4") +int bind_v4_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/bind6_prog.c b/tools/testing/selftests/bpf/progs/bind6_prog.c index d62cd9e9cf0e..501c3fc11d35 100644 --- a/tools/testing/selftests/bpf/progs/bind6_prog.c +++ b/tools/testing/selftests/bpf/progs/bind6_prog.c @@ -12,6 +12,8 @@ #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> +#include "bind_prog.h" + #define SERV6_IP_0 0xfaceb00c /* face:b00c:1234:5678::abcd */ #define SERV6_IP_1 0x12345678 #define SERV6_IP_2 0x00000000 @@ -129,25 +131,25 @@ int bind_v6_prog(struct bpf_sock_addr *ctx) // u8 narrow loads: for (i = 0; i < 4; i++) { user_ip6 = 0; - user_ip6 |= ((volatile __u8 *)&ctx->user_ip6[i])[0] << 0; - user_ip6 |= ((volatile __u8 *)&ctx->user_ip6[i])[1] << 8; - user_ip6 |= ((volatile __u8 *)&ctx->user_ip6[i])[2] << 16; - user_ip6 |= ((volatile __u8 *)&ctx->user_ip6[i])[3] << 24; + user_ip6 |= load_byte(ctx->user_ip6[i], 0, sizeof(user_ip6)); + user_ip6 |= load_byte(ctx->user_ip6[i], 1, sizeof(user_ip6)); + user_ip6 |= load_byte(ctx->user_ip6[i], 2, sizeof(user_ip6)); + user_ip6 |= load_byte(ctx->user_ip6[i], 3, sizeof(user_ip6)); if (ctx->user_ip6[i] != user_ip6) return 0; } user_port = 0; - user_port |= ((volatile __u8 *)&ctx->user_port)[0] << 0; - user_port |= ((volatile __u8 *)&ctx->user_port)[1] << 8; + user_port |= load_byte(ctx->user_port, 0, sizeof(user_port)); + user_port |= load_byte(ctx->user_port, 1, sizeof(user_port)); if (ctx->user_port != user_port) return 0; // u16 narrow loads: for (i = 0; i < 4; i++) { user_ip6 = 0; - user_ip6 |= ((volatile __u16 *)&ctx->user_ip6[i])[0] << 0; - user_ip6 |= ((volatile __u16 *)&ctx->user_ip6[i])[1] << 16; + user_ip6 |= load_word(ctx->user_ip6[i], 0, sizeof(user_ip6)); + user_ip6 |= load_word(ctx->user_ip6[i], 1, sizeof(user_ip6)); if (ctx->user_ip6[i] != user_ip6) return 0; } @@ -173,4 +175,10 @@ int bind_v6_prog(struct bpf_sock_addr *ctx) return 1; } +SEC("cgroup/bind6") +int bind_v6_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/bind_prog.h b/tools/testing/selftests/bpf/progs/bind_prog.h new file mode 100644 index 000000000000..e830caa940c3 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/bind_prog.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __BIND_PROG_H__ +#define __BIND_PROG_H__ + +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ +#define load_byte(src, b, s) \ + (((volatile __u8 *)&(src))[b] << 8 * b) +#define load_word(src, w, s) \ + (((volatile __u16 *)&(src))[w] << 16 * w) +#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +#define load_byte(src, b, s) \ + (((volatile __u8 *)&(src))[(b) + (sizeof(src) - (s))] << 8 * ((s) - (b) - 1)) +#define load_word(src, w, s) \ + (((volatile __u16 *)&(src))[w] << 16 * (((s) / 2) - (w) - 1)) +#else +# error "Fix your compiler's __BYTE_ORDER__?!" +#endif + +#endif diff --git a/tools/testing/selftests/bpf/progs/bpf_cc_cubic.c b/tools/testing/selftests/bpf/progs/bpf_cc_cubic.c new file mode 100644 index 000000000000..1654a530aa3d --- /dev/null +++ b/tools/testing/selftests/bpf/progs/bpf_cc_cubic.c @@ -0,0 +1,189 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* Highlights: + * 1. The major difference between this bpf program and tcp_cubic.c + * is that this bpf program relies on `cong_control` rather than + * `cong_avoid` in the struct tcp_congestion_ops. + * 2. Logic such as tcp_cwnd_reduction, tcp_cong_avoid, and + * tcp_update_pacing_rate is bypassed when `cong_control` is + * defined, so moving these logic to `cong_control`. + * 3. WARNING: This bpf program is NOT the same as tcp_cubic.c. + * The main purpose is to show use cases of the arguments in + * `cong_control`. For simplicity's sake, it reuses tcp cubic's + * kernel functions. + */ + +#include "bpf_tracing_net.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +#define USEC_PER_SEC 1000000UL +#define TCP_PACING_SS_RATIO (200) +#define TCP_PACING_CA_RATIO (120) +#define TCP_REORDERING (12) + +#define min(a, b) ((a) < (b) ? (a) : (b)) +#define max(a, b) ((a) > (b) ? (a) : (b)) +#define after(seq2, seq1) before(seq1, seq2) + +extern void cubictcp_init(struct sock *sk) __ksym; +extern void cubictcp_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym; +extern __u32 cubictcp_recalc_ssthresh(struct sock *sk) __ksym; +extern void cubictcp_state(struct sock *sk, __u8 new_state) __ksym; +extern __u32 tcp_reno_undo_cwnd(struct sock *sk) __ksym; +extern void cubictcp_acked(struct sock *sk, const struct ack_sample *sample) __ksym; +extern void cubictcp_cong_avoid(struct sock *sk, __u32 ack, __u32 acked) __ksym; + +static bool before(__u32 seq1, __u32 seq2) +{ + return (__s32)(seq1-seq2) < 0; +} + +static __u64 div64_u64(__u64 dividend, __u64 divisor) +{ + return dividend / divisor; +} + +static void tcp_update_pacing_rate(struct sock *sk) +{ + const struct tcp_sock *tp = tcp_sk(sk); + __u64 rate; + + /* set sk_pacing_rate to 200 % of current rate (mss * cwnd / srtt) */ + rate = (__u64)tp->mss_cache * ((USEC_PER_SEC / 100) << 3); + + /* current rate is (cwnd * mss) / srtt + * In Slow Start [1], set sk_pacing_rate to 200 % the current rate. + * In Congestion Avoidance phase, set it to 120 % the current rate. + * + * [1] : Normal Slow Start condition is (tp->snd_cwnd < tp->snd_ssthresh) + * If snd_cwnd >= (tp->snd_ssthresh / 2), we are approaching + * end of slow start and should slow down. + */ + if (tp->snd_cwnd < tp->snd_ssthresh / 2) + rate *= TCP_PACING_SS_RATIO; + else + rate *= TCP_PACING_CA_RATIO; + + rate *= max(tp->snd_cwnd, tp->packets_out); + + if (tp->srtt_us) + rate = div64_u64(rate, (__u64)tp->srtt_us); + + sk->sk_pacing_rate = min(rate, sk->sk_max_pacing_rate); +} + +static void tcp_cwnd_reduction(struct sock *sk, int newly_acked_sacked, + int newly_lost, int flag) +{ + struct tcp_sock *tp = tcp_sk(sk); + int sndcnt = 0; + __u32 pkts_in_flight = tp->packets_out - (tp->sacked_out + tp->lost_out) + tp->retrans_out; + int delta = tp->snd_ssthresh - pkts_in_flight; + + if (newly_acked_sacked <= 0 || !tp->prior_cwnd) + return; + + __u32 prr_delivered = tp->prr_delivered + newly_acked_sacked; + + if (delta < 0) { + __u64 dividend = + (__u64)tp->snd_ssthresh * prr_delivered + tp->prior_cwnd - 1; + sndcnt = (__u32)div64_u64(dividend, (__u64)tp->prior_cwnd) - tp->prr_out; + } else { + sndcnt = max(prr_delivered - tp->prr_out, newly_acked_sacked); + if (flag & FLAG_SND_UNA_ADVANCED && !newly_lost) + sndcnt++; + sndcnt = min(delta, sndcnt); + } + /* Force a fast retransmit upon entering fast recovery */ + sndcnt = max(sndcnt, (tp->prr_out ? 0 : 1)); + tp->snd_cwnd = pkts_in_flight + sndcnt; +} + +/* Decide wheather to run the increase function of congestion control. */ +static bool tcp_may_raise_cwnd(const struct sock *sk, const int flag) +{ + if (tcp_sk(sk)->reordering > TCP_REORDERING) + return flag & FLAG_FORWARD_PROGRESS; + + return flag & FLAG_DATA_ACKED; +} + +SEC("struct_ops") +void BPF_PROG(bpf_cubic_init, struct sock *sk) +{ + cubictcp_init(sk); +} + +SEC("struct_ops") +void BPF_PROG(bpf_cubic_cwnd_event, struct sock *sk, enum tcp_ca_event event) +{ + cubictcp_cwnd_event(sk, event); +} + +SEC("struct_ops") +void BPF_PROG(bpf_cubic_cong_control, struct sock *sk, __u32 ack, int flag, + const struct rate_sample *rs) +{ + struct tcp_sock *tp = tcp_sk(sk); + + if (((1<<TCP_CA_CWR) | (1<<TCP_CA_Recovery)) & + (1 << inet_csk(sk)->icsk_ca_state)) { + /* Reduce cwnd if state mandates */ + tcp_cwnd_reduction(sk, rs->acked_sacked, rs->losses, flag); + + if (!before(tp->snd_una, tp->high_seq)) { + /* Reset cwnd to ssthresh in CWR or Recovery (unless it's undone) */ + if (tp->snd_ssthresh < TCP_INFINITE_SSTHRESH && + inet_csk(sk)->icsk_ca_state == TCP_CA_CWR) { + tp->snd_cwnd = tp->snd_ssthresh; + tp->snd_cwnd_stamp = tcp_jiffies32; + } + } + } else if (tcp_may_raise_cwnd(sk, flag)) { + /* Advance cwnd if state allows */ + cubictcp_cong_avoid(sk, ack, rs->acked_sacked); + tp->snd_cwnd_stamp = tcp_jiffies32; + } + + tcp_update_pacing_rate(sk); +} + +SEC("struct_ops") +__u32 BPF_PROG(bpf_cubic_recalc_ssthresh, struct sock *sk) +{ + return cubictcp_recalc_ssthresh(sk); +} + +SEC("struct_ops") +void BPF_PROG(bpf_cubic_state, struct sock *sk, __u8 new_state) +{ + cubictcp_state(sk, new_state); +} + +SEC("struct_ops") +void BPF_PROG(bpf_cubic_acked, struct sock *sk, const struct ack_sample *sample) +{ + cubictcp_acked(sk, sample); +} + +SEC("struct_ops") +__u32 BPF_PROG(bpf_cubic_undo_cwnd, struct sock *sk) +{ + return tcp_reno_undo_cwnd(sk); +} + +SEC(".struct_ops") +struct tcp_congestion_ops cc_cubic = { + .init = (void *)bpf_cubic_init, + .ssthresh = (void *)bpf_cubic_recalc_ssthresh, + .cong_control = (void *)bpf_cubic_cong_control, + .set_state = (void *)bpf_cubic_state, + .undo_cwnd = (void *)bpf_cubic_undo_cwnd, + .cwnd_event = (void *)bpf_cubic_cwnd_event, + .pkts_acked = (void *)bpf_cubic_acked, + .name = "bpf_cc_cubic", +}; + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/bpf_cubic.c b/tools/testing/selftests/bpf/progs/bpf_cubic.c index c997e3e3d3fb..d665b8a15cc4 100644 --- a/tools/testing/selftests/bpf/progs/bpf_cubic.c +++ b/tools/testing/selftests/bpf/progs/bpf_cubic.c @@ -14,14 +14,22 @@ * "ca->ack_cnt / delta" operation. */ -#include <linux/bpf.h> -#include <linux/stddef.h> -#include <linux/tcp.h> -#include "bpf_tcp_helpers.h" +#include "bpf_tracing_net.h" +#include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; #define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) +#define min(a, b) ((a) < (b) ? (a) : (b)) +#define max(a, b) ((a) > (b) ? (a) : (b)) +static bool before(__u32 seq1, __u32 seq2) +{ + return (__s32)(seq1-seq2) < 0; +} +#define after(seq2, seq1) before(seq1, seq2) + +extern __u32 tcp_slow_start(struct tcp_sock *tp, __u32 acked) __ksym; +extern void tcp_cong_avoid_ai(struct tcp_sock *tp, __u32 w, __u32 acked) __ksym; #define BICTCP_BETA_SCALE 1024 /* Scale factor beta calculation * max_cwnd = snd_cwnd * beta @@ -70,7 +78,7 @@ static const __u64 cube_factor = (__u64)(1ull << (10+3*BICTCP_HZ)) / (bic_scale * 10); /* BIC TCP Parameters */ -struct bictcp { +struct bpf_bictcp { __u32 cnt; /* increase cwnd by 1 after ACKs */ __u32 last_max_cwnd; /* last maximum snd_cwnd */ __u32 last_cwnd; /* the last snd_cwnd */ @@ -91,7 +99,7 @@ struct bictcp { __u32 curr_rtt; /* the minimum rtt of current round */ }; -static inline void bictcp_reset(struct bictcp *ca) +static void bictcp_reset(struct bpf_bictcp *ca) { ca->cnt = 0; ca->last_max_cwnd = 0; @@ -112,7 +120,7 @@ extern unsigned long CONFIG_HZ __kconfig; #define USEC_PER_SEC 1000000UL #define USEC_PER_JIFFY (USEC_PER_SEC / HZ) -static __always_inline __u64 div64_u64(__u64 dividend, __u64 divisor) +static __u64 div64_u64(__u64 dividend, __u64 divisor) { return dividend / divisor; } @@ -120,7 +128,7 @@ static __always_inline __u64 div64_u64(__u64 dividend, __u64 divisor) #define div64_ul div64_u64 #define BITS_PER_U64 (sizeof(__u64) * 8) -static __always_inline int fls64(__u64 x) +static int fls64(__u64 x) { int num = BITS_PER_U64 - 1; @@ -153,15 +161,15 @@ static __always_inline int fls64(__u64 x) return num + 1; } -static __always_inline __u32 bictcp_clock_us(const struct sock *sk) +static __u32 bictcp_clock_us(const struct sock *sk) { return tcp_sk(sk)->tcp_mstamp; } -static __always_inline void bictcp_hystart_reset(struct sock *sk) +static void bictcp_hystart_reset(struct sock *sk) { struct tcp_sock *tp = tcp_sk(sk); - struct bictcp *ca = inet_csk_ca(sk); + struct bpf_bictcp *ca = inet_csk_ca(sk); ca->round_start = ca->last_ack = bictcp_clock_us(sk); ca->end_seq = tp->snd_nxt; @@ -169,11 +177,10 @@ static __always_inline void bictcp_hystart_reset(struct sock *sk) ca->sample_cnt = 0; } -/* "struct_ops/" prefix is a requirement */ -SEC("struct_ops/bpf_cubic_init") +SEC("struct_ops") void BPF_PROG(bpf_cubic_init, struct sock *sk) { - struct bictcp *ca = inet_csk_ca(sk); + struct bpf_bictcp *ca = inet_csk_ca(sk); bictcp_reset(ca); @@ -184,12 +191,11 @@ void BPF_PROG(bpf_cubic_init, struct sock *sk) tcp_sk(sk)->snd_ssthresh = initial_ssthresh; } -/* "struct_ops" prefix is a requirement */ -SEC("struct_ops/bpf_cubic_cwnd_event") +SEC("struct_ops") void BPF_PROG(bpf_cubic_cwnd_event, struct sock *sk, enum tcp_ca_event event) { if (event == CA_EVENT_TX_START) { - struct bictcp *ca = inet_csk_ca(sk); + struct bpf_bictcp *ca = inet_csk_ca(sk); __u32 now = tcp_jiffies32; __s32 delta; @@ -230,7 +236,7 @@ static const __u8 v[] = { * Newton-Raphson iteration. * Avg err ~= 0.195% */ -static __always_inline __u32 cubic_root(__u64 a) +static __u32 cubic_root(__u64 a) { __u32 x, b, shift; @@ -263,8 +269,7 @@ static __always_inline __u32 cubic_root(__u64 a) /* * Compute congestion window to use. */ -static __always_inline void bictcp_update(struct bictcp *ca, __u32 cwnd, - __u32 acked) +static void bictcp_update(struct bpf_bictcp *ca, __u32 cwnd, __u32 acked) { __u32 delta, bic_target, max_cnt; __u64 offs, t; @@ -377,11 +382,11 @@ tcp_friendliness: ca->cnt = max(ca->cnt, 2U); } -/* Or simply use the BPF_STRUCT_OPS to avoid the SEC boiler plate. */ -void BPF_STRUCT_OPS(bpf_cubic_cong_avoid, struct sock *sk, __u32 ack, __u32 acked) +SEC("struct_ops") +void BPF_PROG(bpf_cubic_cong_avoid, struct sock *sk, __u32 ack, __u32 acked) { struct tcp_sock *tp = tcp_sk(sk); - struct bictcp *ca = inet_csk_ca(sk); + struct bpf_bictcp *ca = inet_csk_ca(sk); if (!tcp_is_cwnd_limited(sk)) return; @@ -397,10 +402,11 @@ void BPF_STRUCT_OPS(bpf_cubic_cong_avoid, struct sock *sk, __u32 ack, __u32 acke tcp_cong_avoid_ai(tp, ca->cnt, acked); } -__u32 BPF_STRUCT_OPS(bpf_cubic_recalc_ssthresh, struct sock *sk) +SEC("struct_ops") +__u32 BPF_PROG(bpf_cubic_recalc_ssthresh, struct sock *sk) { const struct tcp_sock *tp = tcp_sk(sk); - struct bictcp *ca = inet_csk_ca(sk); + struct bpf_bictcp *ca = inet_csk_ca(sk); ca->epoch_start = 0; /* end of epoch */ @@ -414,7 +420,8 @@ __u32 BPF_STRUCT_OPS(bpf_cubic_recalc_ssthresh, struct sock *sk) return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U); } -void BPF_STRUCT_OPS(bpf_cubic_state, struct sock *sk, __u8 new_state) +SEC("struct_ops") +void BPF_PROG(bpf_cubic_state, struct sock *sk, __u8 new_state) { if (new_state == TCP_CA_Loss) { bictcp_reset(inet_csk_ca(sk)); @@ -433,7 +440,7 @@ void BPF_STRUCT_OPS(bpf_cubic_state, struct sock *sk, __u8 new_state) * We apply another 100% factor because @rate is doubled at this point. * We cap the cushion to 1ms. */ -static __always_inline __u32 hystart_ack_delay(struct sock *sk) +static __u32 hystart_ack_delay(struct sock *sk) { unsigned long rate; @@ -444,10 +451,10 @@ static __always_inline __u32 hystart_ack_delay(struct sock *sk) div64_ul((__u64)GSO_MAX_SIZE * 4 * USEC_PER_SEC, rate)); } -static __always_inline void hystart_update(struct sock *sk, __u32 delay) +static void hystart_update(struct sock *sk, __u32 delay) { struct tcp_sock *tp = tcp_sk(sk); - struct bictcp *ca = inet_csk_ca(sk); + struct bpf_bictcp *ca = inet_csk_ca(sk); __u32 threshold; if (hystart_detect & HYSTART_ACK_TRAIN) { @@ -492,11 +499,11 @@ static __always_inline void hystart_update(struct sock *sk, __u32 delay) int bpf_cubic_acked_called = 0; -void BPF_STRUCT_OPS(bpf_cubic_acked, struct sock *sk, - const struct ack_sample *sample) +SEC("struct_ops") +void BPF_PROG(bpf_cubic_acked, struct sock *sk, const struct ack_sample *sample) { const struct tcp_sock *tp = tcp_sk(sk); - struct bictcp *ca = inet_csk_ca(sk); + struct bpf_bictcp *ca = inet_csk_ca(sk); __u32 delay; bpf_cubic_acked_called = 1; @@ -524,7 +531,8 @@ void BPF_STRUCT_OPS(bpf_cubic_acked, struct sock *sk, extern __u32 tcp_reno_undo_cwnd(struct sock *sk) __ksym; -__u32 BPF_STRUCT_OPS(bpf_cubic_undo_cwnd, struct sock *sk) +SEC("struct_ops") +__u32 BPF_PROG(bpf_cubic_undo_cwnd, struct sock *sk) { return tcp_reno_undo_cwnd(sk); } diff --git a/tools/testing/selftests/bpf/progs/bpf_dctcp.c b/tools/testing/selftests/bpf/progs/bpf_dctcp.c index 460682759aed..3c9ffe340312 100644 --- a/tools/testing/selftests/bpf/progs/bpf_dctcp.c +++ b/tools/testing/selftests/bpf/progs/bpf_dctcp.c @@ -6,15 +6,23 @@ * the kernel BPF logic. */ -#include <stddef.h> -#include <linux/bpf.h> -#include <linux/types.h> -#include <linux/stddef.h> -#include <linux/tcp.h> -#include <errno.h> +#include "bpf_tracing_net.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> -#include "bpf_tcp_helpers.h" + +#ifndef EBUSY +#define EBUSY 16 +#endif +#define min(a, b) ((a) < (b) ? (a) : (b)) +#define max(a, b) ((a) > (b) ? (a) : (b)) +#define min_not_zero(x, y) ({ \ + typeof(x) __x = (x); \ + typeof(y) __y = (y); \ + __x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); }) +static bool before(__u32 seq1, __u32 seq2) +{ + return (__s32)(seq1-seq2) < 0; +} char _license[] SEC("license") = "GPL"; @@ -35,7 +43,7 @@ struct { #define DCTCP_MAX_ALPHA 1024U -struct dctcp { +struct bpf_dctcp { __u32 old_delivered; __u32 old_delivered_ce; __u32 prior_rcv_nxt; @@ -48,8 +56,7 @@ struct dctcp { static unsigned int dctcp_shift_g = 4; /* g = 1/2^4 */ static unsigned int dctcp_alpha_on_init = DCTCP_MAX_ALPHA; -static __always_inline void dctcp_reset(const struct tcp_sock *tp, - struct dctcp *ca) +static void dctcp_reset(const struct tcp_sock *tp, struct bpf_dctcp *ca) { ca->next_seq = tp->snd_nxt; @@ -57,11 +64,11 @@ static __always_inline void dctcp_reset(const struct tcp_sock *tp, ca->old_delivered_ce = tp->delivered_ce; } -SEC("struct_ops/dctcp_init") +SEC("struct_ops") void BPF_PROG(dctcp_init, struct sock *sk) { const struct tcp_sock *tp = tcp_sk(sk); - struct dctcp *ca = inet_csk_ca(sk); + struct bpf_dctcp *ca = inet_csk_ca(sk); int *stg; if (!(tp->ecn_flags & TCP_ECN_OK) && fallback[0]) { @@ -104,21 +111,21 @@ void BPF_PROG(dctcp_init, struct sock *sk) dctcp_reset(tp, ca); } -SEC("struct_ops/dctcp_ssthresh") +SEC("struct_ops") __u32 BPF_PROG(dctcp_ssthresh, struct sock *sk) { - struct dctcp *ca = inet_csk_ca(sk); + struct bpf_dctcp *ca = inet_csk_ca(sk); struct tcp_sock *tp = tcp_sk(sk); ca->loss_cwnd = tp->snd_cwnd; return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->dctcp_alpha) >> 11U), 2U); } -SEC("struct_ops/dctcp_update_alpha") +SEC("struct_ops") void BPF_PROG(dctcp_update_alpha, struct sock *sk, __u32 flags) { const struct tcp_sock *tp = tcp_sk(sk); - struct dctcp *ca = inet_csk_ca(sk); + struct bpf_dctcp *ca = inet_csk_ca(sk); /* Expired RTT */ if (!before(tp->snd_una, ca->next_seq)) { @@ -144,16 +151,16 @@ void BPF_PROG(dctcp_update_alpha, struct sock *sk, __u32 flags) } } -static __always_inline void dctcp_react_to_loss(struct sock *sk) +static void dctcp_react_to_loss(struct sock *sk) { - struct dctcp *ca = inet_csk_ca(sk); + struct bpf_dctcp *ca = inet_csk_ca(sk); struct tcp_sock *tp = tcp_sk(sk); ca->loss_cwnd = tp->snd_cwnd; tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U); } -SEC("struct_ops/dctcp_state") +SEC("struct_ops") void BPF_PROG(dctcp_state, struct sock *sk, __u8 new_state) { if (new_state == TCP_CA_Recovery && @@ -164,7 +171,7 @@ void BPF_PROG(dctcp_state, struct sock *sk, __u8 new_state) */ } -static __always_inline void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state) +static void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state) { struct tcp_sock *tp = tcp_sk(sk); @@ -179,9 +186,8 @@ static __always_inline void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state) * S: 0 <- last pkt was non-CE * 1 <- last pkt was CE */ -static __always_inline -void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt, - __u32 *prior_rcv_nxt, __u32 *ce_state) +static void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt, + __u32 *prior_rcv_nxt, __u32 *ce_state) { __u32 new_ce_state = (evt == CA_EVENT_ECN_IS_CE) ? 1 : 0; @@ -201,10 +207,10 @@ void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt, dctcp_ece_ack_cwr(sk, new_ce_state); } -SEC("struct_ops/dctcp_cwnd_event") +SEC("struct_ops") void BPF_PROG(dctcp_cwnd_event, struct sock *sk, enum tcp_ca_event ev) { - struct dctcp *ca = inet_csk_ca(sk); + struct bpf_dctcp *ca = inet_csk_ca(sk); switch (ev) { case CA_EVENT_ECN_IS_CE: @@ -220,17 +226,17 @@ void BPF_PROG(dctcp_cwnd_event, struct sock *sk, enum tcp_ca_event ev) } } -SEC("struct_ops/dctcp_cwnd_undo") +SEC("struct_ops") __u32 BPF_PROG(dctcp_cwnd_undo, struct sock *sk) { - const struct dctcp *ca = inet_csk_ca(sk); + const struct bpf_dctcp *ca = inet_csk_ca(sk); return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd); } extern void tcp_reno_cong_avoid(struct sock *sk, __u32 ack, __u32 acked) __ksym; -SEC("struct_ops/dctcp_reno_cong_avoid") +SEC("struct_ops") void BPF_PROG(dctcp_cong_avoid, struct sock *sk, __u32 ack, __u32 acked) { tcp_reno_cong_avoid(sk, ack, acked); diff --git a/tools/testing/selftests/bpf/progs/bpf_dctcp_release.c b/tools/testing/selftests/bpf/progs/bpf_dctcp_release.c index d836f7c372f0..c91763f248b2 100644 --- a/tools/testing/selftests/bpf/progs/bpf_dctcp_release.c +++ b/tools/testing/selftests/bpf/progs/bpf_dctcp_release.c @@ -1,19 +1,15 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2021 Facebook */ -#include <stddef.h> -#include <linux/bpf.h> -#include <linux/types.h> -#include <linux/stddef.h> -#include <linux/tcp.h> +#include "bpf_tracing_net.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> -#include "bpf_tcp_helpers.h" char _license[] SEC("license") = "GPL"; const char cubic[] = "cubic"; -void BPF_STRUCT_OPS(dctcp_nouse_release, struct sock *sk) +SEC("struct_ops") +void BPF_PROG(dctcp_nouse_release, struct sock *sk) { bpf_setsockopt(sk, SOL_TCP, TCP_CONGESTION, (void *)cubic, sizeof(cubic)); diff --git a/tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c b/tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c index 2ecd833dcd41..8a7a4c1b54e8 100644 --- a/tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c +++ b/tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c @@ -1,14 +1,12 @@ // SPDX-License-Identifier: GPL-2.0 -#include <linux/bpf.h> -#include <linux/types.h> -#include <bpf/bpf_helpers.h> +#include "bpf_tracing_net.h" #include <bpf/bpf_tracing.h> -#include "bpf_tcp_helpers.h" char _license[] SEC("license") = "X"; -void BPF_STRUCT_OPS(nogpltcp_init, struct sock *sk) +SEC("struct_ops") +void BPF_PROG(nogpltcp_init, struct sock *sk) { } diff --git a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h index 7001965d1cc3..59843b430f76 100644 --- a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h +++ b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h @@ -2,6 +2,9 @@ #ifndef __BPF_TRACING_NET_H__ #define __BPF_TRACING_NET_H__ +#include <vmlinux.h> +#include <bpf/bpf_core_read.h> + #define AF_INET 2 #define AF_INET6 10 @@ -22,6 +25,7 @@ #define IP_TOS 1 +#define SOL_IPV6 41 #define IPV6_TCLASS 67 #define IPV6_AUTOFLOWLABEL 70 @@ -46,6 +50,13 @@ #define TCP_CA_NAME_MAX 16 #define TCP_NAGLE_OFF 1 +#define TCP_ECN_OK 1 +#define TCP_ECN_QUEUE_CWR 2 +#define TCP_ECN_DEMAND_CWR 4 +#define TCP_ECN_SEEN 8 + +#define TCP_CONG_NEEDS_ECN 0x2 + #define ICSK_TIME_RETRANS 1 #define ICSK_TIME_PROBE0 3 #define ICSK_TIME_LOSS_PROBE 5 @@ -80,6 +91,14 @@ #define TCP_INFINITE_SSTHRESH 0x7fffffff #define TCP_PINGPONG_THRESH 3 +#define FLAG_DATA_ACKED 0x04 /* This ACK acknowledged new data. */ +#define FLAG_SYN_ACKED 0x10 /* This ACK acknowledged SYN. */ +#define FLAG_DATA_SACKED 0x20 /* New SACK. */ +#define FLAG_SND_UNA_ADVANCED \ + 0x400 /* Snd_una was changed (!= FLAG_DATA_ACKED) */ +#define FLAG_ACKED (FLAG_DATA_ACKED | FLAG_SYN_ACKED) +#define FLAG_FORWARD_PROGRESS (FLAG_ACKED | FLAG_DATA_SACKED) + #define fib_nh_dev nh_common.nhc_dev #define fib_nh_gw_family nh_common.nhc_gw_family #define fib_nh_gw6 nh_common.nhc_gw.ipv6 @@ -119,4 +138,37 @@ #define tw_v6_daddr __tw_common.skc_v6_daddr #define tw_v6_rcv_saddr __tw_common.skc_v6_rcv_saddr +#define tcp_jiffies32 ((__u32)bpf_jiffies64()) + +static inline struct inet_connection_sock *inet_csk(const struct sock *sk) +{ + return (struct inet_connection_sock *)sk; +} + +static inline void *inet_csk_ca(const struct sock *sk) +{ + return (void *)inet_csk(sk)->icsk_ca_priv; +} + +static inline struct tcp_sock *tcp_sk(const struct sock *sk) +{ + return (struct tcp_sock *)sk; +} + +static inline bool tcp_in_slow_start(const struct tcp_sock *tp) +{ + return tp->snd_cwnd < tp->snd_ssthresh; +} + +static inline bool tcp_is_cwnd_limited(const struct sock *sk) +{ + const struct tcp_sock *tp = tcp_sk(sk); + + /* If in slow start, ensure cwnd grows to twice what was ACKed. */ + if (tcp_in_slow_start(tp)) + return tp->snd_cwnd < 2 * tp->max_packets_out; + + return !!BPF_CORE_READ_BITFIELD(tp, is_cwnd_limited); +} + #endif diff --git a/tools/testing/selftests/bpf/progs/cgrp_kfunc_common.h b/tools/testing/selftests/bpf/progs/cgrp_kfunc_common.h index 22914a70db54..73ba32e9a693 100644 --- a/tools/testing/selftests/bpf/progs/cgrp_kfunc_common.h +++ b/tools/testing/selftests/bpf/progs/cgrp_kfunc_common.h @@ -13,7 +13,7 @@ struct __cgrps_kfunc_map_value { struct cgroup __kptr * cgrp; }; -struct hash_map { +struct { __uint(type, BPF_MAP_TYPE_HASH); __type(key, int); __type(value, struct __cgrps_kfunc_map_value); diff --git a/tools/testing/selftests/bpf/progs/connect4_prog.c b/tools/testing/selftests/bpf/progs/connect4_prog.c index 7ef49ec04838..9e9ebf27b878 100644 --- a/tools/testing/selftests/bpf/progs/connect4_prog.c +++ b/tools/testing/selftests/bpf/progs/connect4_prog.c @@ -14,8 +14,6 @@ #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> -#include "bpf_tcp_helpers.h" - #define SRC_REWRITE_IP4 0x7f000004U #define DST_REWRITE_IP4 0x7f000001U #define DST_REWRITE_PORT4 4444 @@ -32,6 +30,10 @@ #define IFNAMSIZ 16 #endif +#ifndef SOL_TCP +#define SOL_TCP 6 +#endif + __attribute__ ((noinline)) __weak int do_bind(struct bpf_sock_addr *ctx) { @@ -197,4 +199,10 @@ int connect_v4_prog(struct bpf_sock_addr *ctx) return do_bind(ctx) ? 1 : 0; } +SEC("cgroup/connect4") +int connect_v4_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/connect6_prog.c b/tools/testing/selftests/bpf/progs/connect6_prog.c index 40266d2c737c..e98573b00ddb 100644 --- a/tools/testing/selftests/bpf/progs/connect6_prog.c +++ b/tools/testing/selftests/bpf/progs/connect6_prog.c @@ -90,4 +90,10 @@ int connect_v6_prog(struct bpf_sock_addr *ctx) return 1; } +SEC("cgroup/connect6") +int connect_v6_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/connect_unix_prog.c b/tools/testing/selftests/bpf/progs/connect_unix_prog.c index 2ef0e0c46d17..ba60adadb335 100644 --- a/tools/testing/selftests/bpf/progs/connect_unix_prog.c +++ b/tools/testing/selftests/bpf/progs/connect_unix_prog.c @@ -36,4 +36,10 @@ int connect_unix_prog(struct bpf_sock_addr *ctx) return 1; } +SEC("cgroup/connect_unix") +int connect_unix_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/cpumask_common.h b/tools/testing/selftests/bpf/progs/cpumask_common.h index c705d8112a35..b979e91f55f0 100644 --- a/tools/testing/selftests/bpf/progs/cpumask_common.h +++ b/tools/testing/selftests/bpf/progs/cpumask_common.h @@ -9,7 +9,7 @@ int err; -#define private(name) SEC(".bss." #name) __hidden __attribute__((aligned(8))) +#define private(name) SEC(".bss." #name) __attribute__((aligned(8))) private(MASK) static struct bpf_cpumask __kptr * global_mask; struct __cpumask_map_value { diff --git a/tools/testing/selftests/bpf/progs/cpumask_failure.c b/tools/testing/selftests/bpf/progs/cpumask_failure.c index a9bf6ea336cf..a988d2823b52 100644 --- a/tools/testing/selftests/bpf/progs/cpumask_failure.c +++ b/tools/testing/selftests/bpf/progs/cpumask_failure.c @@ -61,11 +61,8 @@ SEC("tp_btf/task_newtask") __failure __msg("bpf_cpumask_set_cpu args#1 expected pointer to STRUCT bpf_cpumask") int BPF_PROG(test_mutate_cpumask, struct task_struct *task, u64 clone_flags) { - struct bpf_cpumask *cpumask; - /* Can't set the CPU of a non-struct bpf_cpumask. */ bpf_cpumask_set_cpu(0, (struct bpf_cpumask *)task->cpus_ptr); - __sink(cpumask); return 0; } diff --git a/tools/testing/selftests/bpf/progs/crypto_basic.c b/tools/testing/selftests/bpf/progs/crypto_basic.c new file mode 100644 index 000000000000..8cf7168b42d5 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/crypto_basic.c @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include "bpf_misc.h" +#include "bpf_kfuncs.h" +#include "crypto_common.h" + +int status; +SEC("syscall") +int crypto_release(void *ctx) +{ + struct bpf_crypto_params params = { + .type = "skcipher", + .algo = "ecb(aes)", + .key_len = 16, + }; + + struct bpf_crypto_ctx *cctx; + int err = 0; + + status = 0; + + cctx = bpf_crypto_ctx_create(¶ms, sizeof(params), &err); + + if (!cctx) { + status = err; + return 0; + } + + bpf_crypto_ctx_release(cctx); + + return 0; +} + +SEC("syscall") +__failure __msg("Unreleased reference") +int crypto_acquire(void *ctx) +{ + struct bpf_crypto_params params = { + .type = "skcipher", + .algo = "ecb(aes)", + .key_len = 16, + }; + struct bpf_crypto_ctx *cctx; + int err = 0; + + status = 0; + + cctx = bpf_crypto_ctx_create(¶ms, sizeof(params), &err); + + if (!cctx) { + status = err; + return 0; + } + + cctx = bpf_crypto_ctx_acquire(cctx); + if (!cctx) + return -EINVAL; + + bpf_crypto_ctx_release(cctx); + + return 0; +} + +char __license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/crypto_bench.c b/tools/testing/selftests/bpf/progs/crypto_bench.c new file mode 100644 index 000000000000..e61fe0882293 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/crypto_bench.c @@ -0,0 +1,109 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" +#include "bpf_tracing_net.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> +#include <bpf/bpf_tracing.h> +#include "bpf_misc.h" +#include "bpf_kfuncs.h" +#include "crypto_common.h" + +const volatile unsigned int len = 16; +char cipher[128] = {}; +u32 key_len, authsize; +char dst[256] = {}; +u8 key[256] = {}; +long hits = 0; +int status; + +SEC("syscall") +int crypto_setup(void *args) +{ + struct bpf_crypto_ctx *cctx; + struct bpf_crypto_params params = { + .type = "skcipher", + .key_len = key_len, + .authsize = authsize, + }; + int err = 0; + + status = 0; + + if (!cipher[0] || !key_len || key_len > 256) { + status = -EINVAL; + return 0; + } + + __builtin_memcpy(¶ms.algo, cipher, sizeof(cipher)); + __builtin_memcpy(¶ms.key, key, sizeof(key)); + cctx = bpf_crypto_ctx_create(¶ms, sizeof(params), &err); + + if (!cctx) { + status = err; + return 0; + } + + err = crypto_ctx_insert(cctx); + if (err && err != -EEXIST) + status = err; + + return 0; +} + +SEC("tc") +int crypto_encrypt(struct __sk_buff *skb) +{ + struct __crypto_ctx_value *v; + struct bpf_crypto_ctx *ctx; + struct bpf_dynptr psrc, pdst, iv; + + v = crypto_ctx_value_lookup(); + if (!v) { + status = -ENOENT; + return 0; + } + + ctx = v->ctx; + if (!ctx) { + status = -ENOENT; + return 0; + } + + bpf_dynptr_from_skb(skb, 0, &psrc); + bpf_dynptr_from_mem(dst, len, 0, &pdst); + bpf_dynptr_from_mem(dst, 0, 0, &iv); + + status = bpf_crypto_encrypt(ctx, &psrc, &pdst, &iv); + __sync_add_and_fetch(&hits, 1); + + return 0; +} + +SEC("tc") +int crypto_decrypt(struct __sk_buff *skb) +{ + struct bpf_dynptr psrc, pdst, iv; + struct __crypto_ctx_value *v; + struct bpf_crypto_ctx *ctx; + + v = crypto_ctx_value_lookup(); + if (!v) + return -ENOENT; + + ctx = v->ctx; + if (!ctx) + return -ENOENT; + + bpf_dynptr_from_skb(skb, 0, &psrc); + bpf_dynptr_from_mem(dst, len, 0, &pdst); + bpf_dynptr_from_mem(dst, 0, 0, &iv); + + status = bpf_crypto_decrypt(ctx, &psrc, &pdst, &iv); + __sync_add_and_fetch(&hits, 1); + + return 0; +} + +char __license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/crypto_common.h b/tools/testing/selftests/bpf/progs/crypto_common.h new file mode 100644 index 000000000000..57dd7a68a8c3 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/crypto_common.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ + +#ifndef _CRYPTO_COMMON_H +#define _CRYPTO_COMMON_H + +#include "errno.h" +#include <stdbool.h> + +struct bpf_crypto_ctx *bpf_crypto_ctx_create(const struct bpf_crypto_params *params, + u32 params__sz, int *err) __ksym; +struct bpf_crypto_ctx *bpf_crypto_ctx_acquire(struct bpf_crypto_ctx *ctx) __ksym; +void bpf_crypto_ctx_release(struct bpf_crypto_ctx *ctx) __ksym; +int bpf_crypto_encrypt(struct bpf_crypto_ctx *ctx, const struct bpf_dynptr *src, + const struct bpf_dynptr *dst, const struct bpf_dynptr *iv) __ksym; +int bpf_crypto_decrypt(struct bpf_crypto_ctx *ctx, const struct bpf_dynptr *src, + const struct bpf_dynptr *dst, const struct bpf_dynptr *iv) __ksym; + +struct __crypto_ctx_value { + struct bpf_crypto_ctx __kptr * ctx; +}; + +struct array_map { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, int); + __type(value, struct __crypto_ctx_value); + __uint(max_entries, 1); +} __crypto_ctx_map SEC(".maps"); + +static inline struct __crypto_ctx_value *crypto_ctx_value_lookup(void) +{ + u32 key = 0; + + return bpf_map_lookup_elem(&__crypto_ctx_map, &key); +} + +static inline int crypto_ctx_insert(struct bpf_crypto_ctx *ctx) +{ + struct __crypto_ctx_value local, *v; + struct bpf_crypto_ctx *old; + u32 key = 0; + int err; + + local.ctx = NULL; + err = bpf_map_update_elem(&__crypto_ctx_map, &key, &local, 0); + if (err) { + bpf_crypto_ctx_release(ctx); + return err; + } + + v = bpf_map_lookup_elem(&__crypto_ctx_map, &key); + if (!v) { + bpf_crypto_ctx_release(ctx); + return -ENOENT; + } + + old = bpf_kptr_xchg(&v->ctx, ctx); + if (old) { + bpf_crypto_ctx_release(old); + return -EEXIST; + } + + return 0; +} + +#endif /* _CRYPTO_COMMON_H */ diff --git a/tools/testing/selftests/bpf/progs/crypto_sanity.c b/tools/testing/selftests/bpf/progs/crypto_sanity.c new file mode 100644 index 000000000000..1be0a3fa5efd --- /dev/null +++ b/tools/testing/selftests/bpf/progs/crypto_sanity.c @@ -0,0 +1,169 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" +#include "bpf_tracing_net.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> +#include <bpf/bpf_tracing.h> +#include "bpf_misc.h" +#include "bpf_kfuncs.h" +#include "crypto_common.h" + +unsigned char key[256] = {}; +u16 udp_test_port = 7777; +u32 authsize, key_len; +char algo[128] = {}; +char dst[16] = {}; +int status; + +static int skb_dynptr_validate(struct __sk_buff *skb, struct bpf_dynptr *psrc) +{ + struct ipv6hdr ip6h; + struct udphdr udph; + u32 offset; + + if (skb->protocol != __bpf_constant_htons(ETH_P_IPV6)) + return -1; + + if (bpf_skb_load_bytes(skb, ETH_HLEN, &ip6h, sizeof(ip6h))) + return -1; + + if (ip6h.nexthdr != IPPROTO_UDP) + return -1; + + if (bpf_skb_load_bytes(skb, ETH_HLEN + sizeof(ip6h), &udph, sizeof(udph))) + return -1; + + if (udph.dest != __bpf_htons(udp_test_port)) + return -1; + + offset = ETH_HLEN + sizeof(ip6h) + sizeof(udph); + if (skb->len < offset + 16) + return -1; + + /* let's make sure that 16 bytes of payload are in the linear part of skb */ + bpf_skb_pull_data(skb, offset + 16); + bpf_dynptr_from_skb(skb, 0, psrc); + bpf_dynptr_adjust(psrc, offset, offset + 16); + + return 0; +} + +SEC("syscall") +int skb_crypto_setup(void *ctx) +{ + struct bpf_crypto_params params = { + .type = "skcipher", + .key_len = key_len, + .authsize = authsize, + }; + struct bpf_crypto_ctx *cctx; + int err = 0; + + status = 0; + + if (key_len > 256) { + status = -EINVAL; + return 0; + } + + __builtin_memcpy(¶ms.algo, algo, sizeof(algo)); + __builtin_memcpy(¶ms.key, key, sizeof(key)); + cctx = bpf_crypto_ctx_create(¶ms, sizeof(params), &err); + + if (!cctx) { + status = err; + return 0; + } + + err = crypto_ctx_insert(cctx); + if (err && err != -EEXIST) + status = err; + + return 0; +} + +SEC("tc") +int decrypt_sanity(struct __sk_buff *skb) +{ + struct __crypto_ctx_value *v; + struct bpf_crypto_ctx *ctx; + struct bpf_dynptr psrc, pdst, iv; + int err; + + err = skb_dynptr_validate(skb, &psrc); + if (err < 0) { + status = err; + return TC_ACT_SHOT; + } + + v = crypto_ctx_value_lookup(); + if (!v) { + status = -ENOENT; + return TC_ACT_SHOT; + } + + ctx = v->ctx; + if (!ctx) { + status = -ENOENT; + return TC_ACT_SHOT; + } + + /* dst is a global variable to make testing part easier to check. In real + * production code, a percpu map should be used to store the result. + */ + bpf_dynptr_from_mem(dst, sizeof(dst), 0, &pdst); + /* iv dynptr has to be initialized with 0 size, but proper memory region + * has to be provided anyway + */ + bpf_dynptr_from_mem(dst, 0, 0, &iv); + + status = bpf_crypto_decrypt(ctx, &psrc, &pdst, &iv); + + return TC_ACT_SHOT; +} + +SEC("tc") +int encrypt_sanity(struct __sk_buff *skb) +{ + struct __crypto_ctx_value *v; + struct bpf_crypto_ctx *ctx; + struct bpf_dynptr psrc, pdst, iv; + int err; + + status = 0; + + err = skb_dynptr_validate(skb, &psrc); + if (err < 0) { + status = err; + return TC_ACT_SHOT; + } + + v = crypto_ctx_value_lookup(); + if (!v) { + status = -ENOENT; + return TC_ACT_SHOT; + } + + ctx = v->ctx; + if (!ctx) { + status = -ENOENT; + return TC_ACT_SHOT; + } + + /* dst is a global variable to make testing part easier to check. In real + * production code, a percpu map should be used to store the result. + */ + bpf_dynptr_from_mem(dst, sizeof(dst), 0, &pdst); + /* iv dynptr has to be initialized with 0 size, but proper memory region + * has to be provided anyway + */ + bpf_dynptr_from_mem(dst, 0, 0, &iv); + + status = bpf_crypto_encrypt(ctx, &psrc, &pdst, &iv); + + return TC_ACT_SHOT; +} + +char __license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c b/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c index 1efa746c25dc..ec0c595d47af 100644 --- a/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c +++ b/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c @@ -11,8 +11,17 @@ int BPF_PROG(test_1, struct bpf_dummy_ops_state *state) { int ret; - if (!state) - return 0xf2f3f4f5; + /* Check that 'state' nullable status is detected correctly. + * If 'state' argument would be assumed non-null by verifier + * the code below would be deleted as dead (which it shouldn't). + * Hide it from the compiler behind 'asm' block to avoid + * unnecessary optimizations. + */ + asm volatile ( + "if %[state] != 0 goto +2;" + "r0 = 0xf2f3f4f5;" + "exit;" + ::[state]"p"(state)); ret = state->val; state->val = 0x5a; @@ -25,7 +34,7 @@ SEC("struct_ops/test_2") int BPF_PROG(test_2, struct bpf_dummy_ops_state *state, int a1, unsigned short a2, char a3, unsigned long a4) { - test_2_args[0] = (unsigned long)state; + test_2_args[0] = state->val; test_2_args[1] = a1; test_2_args[2] = a2; test_2_args[3] = a3; diff --git a/tools/testing/selftests/bpf/progs/dynptr_fail.c b/tools/testing/selftests/bpf/progs/dynptr_fail.c index 7ce7e827d5f0..66a60bfb5867 100644 --- a/tools/testing/selftests/bpf/progs/dynptr_fail.c +++ b/tools/testing/selftests/bpf/progs/dynptr_fail.c @@ -80,7 +80,7 @@ SEC("?raw_tp") __failure __msg("Unreleased reference id=2") int ringbuf_missing_release1(void *ctx) { - struct bpf_dynptr ptr; + struct bpf_dynptr ptr = {}; bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr); @@ -1385,7 +1385,7 @@ SEC("?raw_tp") __failure __msg("Expected an initialized dynptr as arg #1") int dynptr_adjust_invalid(void *ctx) { - struct bpf_dynptr ptr; + struct bpf_dynptr ptr = {}; /* this should fail */ bpf_dynptr_adjust(&ptr, 1, 2); @@ -1398,7 +1398,7 @@ SEC("?raw_tp") __failure __msg("Expected an initialized dynptr as arg #1") int dynptr_is_null_invalid(void *ctx) { - struct bpf_dynptr ptr; + struct bpf_dynptr ptr = {}; /* this should fail */ bpf_dynptr_is_null(&ptr); @@ -1411,7 +1411,7 @@ SEC("?raw_tp") __failure __msg("Expected an initialized dynptr as arg #1") int dynptr_is_rdonly_invalid(void *ctx) { - struct bpf_dynptr ptr; + struct bpf_dynptr ptr = {}; /* this should fail */ bpf_dynptr_is_rdonly(&ptr); @@ -1424,7 +1424,7 @@ SEC("?raw_tp") __failure __msg("Expected an initialized dynptr as arg #1") int dynptr_size_invalid(void *ctx) { - struct bpf_dynptr ptr; + struct bpf_dynptr ptr = {}; /* this should fail */ bpf_dynptr_size(&ptr); @@ -1437,7 +1437,7 @@ SEC("?raw_tp") __failure __msg("Expected an initialized dynptr as arg #1") int clone_invalid1(void *ctx) { - struct bpf_dynptr ptr1; + struct bpf_dynptr ptr1 = {}; struct bpf_dynptr ptr2; /* this should fail */ diff --git a/tools/testing/selftests/bpf/progs/fib_lookup.c b/tools/testing/selftests/bpf/progs/fib_lookup.c index c4514dd58c62..7b5dd2214ff4 100644 --- a/tools/testing/selftests/bpf/progs/fib_lookup.c +++ b/tools/testing/selftests/bpf/progs/fib_lookup.c @@ -3,8 +3,8 @@ #include <linux/types.h> #include <linux/bpf.h> +#include <linux/pkt_cls.h> #include <bpf/bpf_helpers.h> -#include "bpf_tracing_net.h" struct bpf_fib_lookup fib_params = {}; int fib_lookup_ret = 0; diff --git a/tools/testing/selftests/bpf/progs/for_each_multi_maps.c b/tools/testing/selftests/bpf/progs/for_each_multi_maps.c new file mode 100644 index 000000000000..ff0bed7d4459 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/for_each_multi_maps.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> + +char _license[] SEC("license") = "GPL"; + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __uint(max_entries, 3); + __type(key, __u32); + __type(value, __u64); +} arraymap SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __uint(max_entries, 5); + __type(key, __u32); + __type(value, __u64); +} hashmap SEC(".maps"); + +struct callback_ctx { + int output; +}; + +u32 data_output = 0; +int use_array = 0; + +static __u64 +check_map_elem(struct bpf_map *map, __u32 *key, __u64 *val, + struct callback_ctx *data) +{ + data->output += *val; + return 0; +} + +SEC("tc") +int test_pkt_access(struct __sk_buff *skb) +{ + struct callback_ctx data; + + data.output = 0; + if (use_array) + bpf_for_each_map_elem(&arraymap, check_map_elem, &data, 0); + else + bpf_for_each_map_elem(&hashmap, check_map_elem, &data, 0); + data_output = data.output; + + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/getpeername4_prog.c b/tools/testing/selftests/bpf/progs/getpeername4_prog.c new file mode 100644 index 000000000000..4c97208cd25d --- /dev/null +++ b/tools/testing/selftests/bpf/progs/getpeername4_prog.c @@ -0,0 +1,24 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Google LLC */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +#define REWRITE_ADDRESS_IP4 0xc0a801fe // 192.168.1.254 +#define REWRITE_ADDRESS_PORT4 4040 + +SEC("cgroup/getpeername4") +int getpeername_v4_prog(struct bpf_sock_addr *ctx) +{ + ctx->user_ip4 = bpf_htonl(REWRITE_ADDRESS_IP4); + ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT4); + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/getpeername6_prog.c b/tools/testing/selftests/bpf/progs/getpeername6_prog.c new file mode 100644 index 000000000000..070e4d7f636c --- /dev/null +++ b/tools/testing/selftests/bpf/progs/getpeername6_prog.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Google LLC */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +#define REWRITE_ADDRESS_IP6_0 0xfaceb00c +#define REWRITE_ADDRESS_IP6_1 0x12345678 +#define REWRITE_ADDRESS_IP6_2 0x00000000 +#define REWRITE_ADDRESS_IP6_3 0x0000abcd + +#define REWRITE_ADDRESS_PORT6 6060 + +SEC("cgroup/getpeername6") +int getpeername_v6_prog(struct bpf_sock_addr *ctx) +{ + ctx->user_ip6[0] = bpf_htonl(REWRITE_ADDRESS_IP6_0); + ctx->user_ip6[1] = bpf_htonl(REWRITE_ADDRESS_IP6_1); + ctx->user_ip6[2] = bpf_htonl(REWRITE_ADDRESS_IP6_2); + ctx->user_ip6[3] = bpf_htonl(REWRITE_ADDRESS_IP6_3); + ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT6); + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/getsockname4_prog.c b/tools/testing/selftests/bpf/progs/getsockname4_prog.c new file mode 100644 index 000000000000..e298487c6347 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/getsockname4_prog.c @@ -0,0 +1,24 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Google LLC */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +#define REWRITE_ADDRESS_IP4 0xc0a801fe // 192.168.1.254 +#define REWRITE_ADDRESS_PORT4 4040 + +SEC("cgroup/getsockname4") +int getsockname_v4_prog(struct bpf_sock_addr *ctx) +{ + ctx->user_ip4 = bpf_htonl(REWRITE_ADDRESS_IP4); + ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT4); + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/getsockname6_prog.c b/tools/testing/selftests/bpf/progs/getsockname6_prog.c new file mode 100644 index 000000000000..811d10cd5525 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/getsockname6_prog.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Google LLC */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +#define REWRITE_ADDRESS_IP6_0 0xfaceb00c +#define REWRITE_ADDRESS_IP6_1 0x12345678 +#define REWRITE_ADDRESS_IP6_2 0x00000000 +#define REWRITE_ADDRESS_IP6_3 0x0000abcd + +#define REWRITE_ADDRESS_PORT6 6060 + +SEC("cgroup/getsockname6") +int getsockname_v6_prog(struct bpf_sock_addr *ctx) +{ + ctx->user_ip6[0] = bpf_htonl(REWRITE_ADDRESS_IP6_0); + ctx->user_ip6[1] = bpf_htonl(REWRITE_ADDRESS_IP6_1); + ctx->user_ip6[2] = bpf_htonl(REWRITE_ADDRESS_IP6_2); + ctx->user_ip6[3] = bpf_htonl(REWRITE_ADDRESS_IP6_3); + ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT6); + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/iters.c b/tools/testing/selftests/bpf/progs/iters.c index 3db416606f2f..fe65e0952a1e 100644 --- a/tools/testing/selftests/bpf/progs/iters.c +++ b/tools/testing/selftests/bpf/progs/iters.c @@ -673,7 +673,7 @@ static __noinline void fill(struct bpf_iter_num *it, int *arr, __u32 n, int mul) static __noinline int sum(struct bpf_iter_num *it, int *arr, __u32 n) { - int *t, i, sum = 0;; + int *t, i, sum = 0; while ((t = bpf_iter_num_next(it))) { i = *t; diff --git a/tools/testing/selftests/bpf/progs/jeq_infer_not_null_fail.c b/tools/testing/selftests/bpf/progs/jeq_infer_not_null_fail.c index f46965053acb..4d619bea9c75 100644 --- a/tools/testing/selftests/bpf/progs/jeq_infer_not_null_fail.c +++ b/tools/testing/selftests/bpf/progs/jeq_infer_not_null_fail.c @@ -4,6 +4,10 @@ #include <bpf/bpf_helpers.h> #include "bpf_misc.h" +#ifndef __clang__ +#pragma GCC diagnostic ignored "-Warray-bounds" +#endif + char _license[] SEC("license") = "GPL"; struct { diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_session.c b/tools/testing/selftests/bpf/progs/kprobe_multi_session.c new file mode 100644 index 000000000000..bbba9eb46551 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/kprobe_multi_session.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include <stdbool.h> +#include "bpf_kfuncs.h" + +#define ARRAY_SIZE(x) (int)(sizeof(x) / sizeof((x)[0])) + +char _license[] SEC("license") = "GPL"; + +extern const void bpf_fentry_test1 __ksym; +extern const void bpf_fentry_test2 __ksym; +extern const void bpf_fentry_test3 __ksym; +extern const void bpf_fentry_test4 __ksym; +extern const void bpf_fentry_test5 __ksym; +extern const void bpf_fentry_test6 __ksym; +extern const void bpf_fentry_test7 __ksym; +extern const void bpf_fentry_test8 __ksym; + +int pid = 0; + +__u64 kprobe_session_result[8]; + +static int session_check(void *ctx) +{ + unsigned int i; + __u64 addr; + const void *kfuncs[] = { + &bpf_fentry_test1, + &bpf_fentry_test2, + &bpf_fentry_test3, + &bpf_fentry_test4, + &bpf_fentry_test5, + &bpf_fentry_test6, + &bpf_fentry_test7, + &bpf_fentry_test8, + }; + + if (bpf_get_current_pid_tgid() >> 32 != pid) + return 1; + + addr = bpf_get_func_ip(ctx); + + for (i = 0; i < ARRAY_SIZE(kfuncs); i++) { + if (kfuncs[i] == (void *) addr) { + kprobe_session_result[i]++; + break; + } + } + + /* + * Force probes for function bpf_fentry_test[5-8] not to + * install and execute the return probe + */ + if (((const void *) addr == &bpf_fentry_test5) || + ((const void *) addr == &bpf_fentry_test6) || + ((const void *) addr == &bpf_fentry_test7) || + ((const void *) addr == &bpf_fentry_test8)) + return 1; + + return 0; +} + +/* + * No tests in here, just to trigger 'bpf_fentry_test*' + * through tracing test_run + */ +SEC("fentry/bpf_modify_return_test") +int BPF_PROG(trigger) +{ + return 0; +} + +SEC("kprobe.session/bpf_fentry_test*") +int test_kprobe(struct pt_regs *ctx) +{ + return session_check(ctx); +} diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c b/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c new file mode 100644 index 000000000000..d49070803e22 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c @@ -0,0 +1,58 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include <stdbool.h> +#include "bpf_kfuncs.h" + +char _license[] SEC("license") = "GPL"; + +int pid = 0; + +__u64 test_kprobe_1_result = 0; +__u64 test_kprobe_2_result = 0; +__u64 test_kprobe_3_result = 0; + +/* + * No tests in here, just to trigger 'bpf_fentry_test*' + * through tracing test_run + */ +SEC("fentry/bpf_modify_return_test") +int BPF_PROG(trigger) +{ + return 0; +} + +static int check_cookie(__u64 val, __u64 *result) +{ + long *cookie; + + if (bpf_get_current_pid_tgid() >> 32 != pid) + return 1; + + cookie = bpf_session_cookie(); + + if (bpf_session_is_return()) + *result = *cookie == val ? val : 0; + else + *cookie = val; + return 0; +} + +SEC("kprobe.session/bpf_fentry_test1") +int test_kprobe_1(struct pt_regs *ctx) +{ + return check_cookie(1, &test_kprobe_1_result); +} + +SEC("kprobe.session/bpf_fentry_test1") +int test_kprobe_2(struct pt_regs *ctx) +{ + return check_cookie(2, &test_kprobe_2_result); +} + +SEC("kprobe.session/bpf_fentry_test1") +int test_kprobe_3(struct pt_regs *ctx) +{ + return check_cookie(3, &test_kprobe_3_result); +} diff --git a/tools/testing/selftests/bpf/progs/local_storage.c b/tools/testing/selftests/bpf/progs/local_storage.c index e5e3a8b8dd07..637e75df2e14 100644 --- a/tools/testing/selftests/bpf/progs/local_storage.c +++ b/tools/testing/selftests/bpf/progs/local_storage.c @@ -140,11 +140,12 @@ int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address, { __u32 pid = bpf_get_current_pid_tgid() >> 32; struct local_storage *storage; + struct sock *sk = sock->sk; - if (pid != monitored_pid) + if (pid != monitored_pid || !sk) return 0; - storage = bpf_sk_storage_get(&sk_storage_map, sock->sk, 0, 0); + storage = bpf_sk_storage_get(&sk_storage_map, sk, 0, 0); if (!storage) return 0; @@ -155,24 +156,24 @@ int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address, /* This tests that we can associate multiple elements * with the local storage. */ - storage = bpf_sk_storage_get(&sk_storage_map2, sock->sk, 0, + storage = bpf_sk_storage_get(&sk_storage_map2, sk, 0, BPF_LOCAL_STORAGE_GET_F_CREATE); if (!storage) return 0; - if (bpf_sk_storage_delete(&sk_storage_map2, sock->sk)) + if (bpf_sk_storage_delete(&sk_storage_map2, sk)) return 0; - storage = bpf_sk_storage_get(&sk_storage_map2, sock->sk, 0, + storage = bpf_sk_storage_get(&sk_storage_map2, sk, 0, BPF_LOCAL_STORAGE_GET_F_CREATE); if (!storage) return 0; - if (bpf_sk_storage_delete(&sk_storage_map, sock->sk)) + if (bpf_sk_storage_delete(&sk_storage_map, sk)) return 0; /* Ensure that the sk_storage_map is disconnected from the storage. */ - if (!sock->sk->sk_bpf_storage || sock->sk->sk_bpf_storage->smap) + if (!sk->sk_bpf_storage || sk->sk_bpf_storage->smap) return 0; sk_storage_result = 0; @@ -185,11 +186,12 @@ int BPF_PROG(socket_post_create, struct socket *sock, int family, int type, { __u32 pid = bpf_get_current_pid_tgid() >> 32; struct local_storage *storage; + struct sock *sk = sock->sk; - if (pid != monitored_pid) + if (pid != monitored_pid || !sk) return 0; - storage = bpf_sk_storage_get(&sk_storage_map, sock->sk, 0, + storage = bpf_sk_storage_get(&sk_storage_map, sk, 0, BPF_LOCAL_STORAGE_GET_F_CREATE); if (!storage) return 0; diff --git a/tools/testing/selftests/bpf/progs/lsm_cgroup.c b/tools/testing/selftests/bpf/progs/lsm_cgroup.c index 02c11d16b692..d7598538aa2d 100644 --- a/tools/testing/selftests/bpf/progs/lsm_cgroup.c +++ b/tools/testing/selftests/bpf/progs/lsm_cgroup.c @@ -103,11 +103,15 @@ static __always_inline int real_bind(struct socket *sock, int addrlen) { struct sockaddr_ll sa = {}; + struct sock *sk = sock->sk; - if (sock->sk->__sk_common.skc_family != AF_PACKET) + if (!sk) + return 1; + + if (sk->__sk_common.skc_family != AF_PACKET) return 1; - if (sock->sk->sk_kern_sock) + if (sk->sk_kern_sock) return 1; bpf_probe_read_kernel(&sa, sizeof(sa), address); diff --git a/tools/testing/selftests/bpf/progs/mptcp_sock.c b/tools/testing/selftests/bpf/progs/mptcp_sock.c index 91a0d7eff2ac..f3acb90588c7 100644 --- a/tools/testing/selftests/bpf/progs/mptcp_sock.c +++ b/tools/testing/selftests/bpf/progs/mptcp_sock.c @@ -2,9 +2,9 @@ /* Copyright (c) 2020, Tessares SA. */ /* Copyright (c) 2022, SUSE. */ -#include <linux/bpf.h> +#include "bpf_tracing_net.h" #include <bpf/bpf_helpers.h> -#include "bpf_tcp_helpers.h" +#include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; __u32 token = 0; diff --git a/tools/testing/selftests/bpf/progs/mptcpify.c b/tools/testing/selftests/bpf/progs/mptcpify.c index 53301ae8a8f7..cbdc730c3a47 100644 --- a/tools/testing/selftests/bpf/progs/mptcpify.c +++ b/tools/testing/selftests/bpf/progs/mptcpify.c @@ -6,10 +6,14 @@ #include "bpf_tracing_net.h" char _license[] SEC("license") = "GPL"; +int pid; SEC("fmod_ret/update_socket_protocol") int BPF_PROG(mptcpify, int family, int type, int protocol) { + if (bpf_get_current_pid_tgid() >> 32 != pid) + return protocol; + if ((family == AF_INET || family == AF_INET6) && type == SOCK_STREAM && (!protocol || protocol == IPPROTO_TCP)) { diff --git a/tools/testing/selftests/bpf/progs/preempt_lock.c b/tools/testing/selftests/bpf/progs/preempt_lock.c new file mode 100644 index 000000000000..672fc368d9c4 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/preempt_lock.c @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <vmlinux.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include "bpf_misc.h" +#include "bpf_experimental.h" + +SEC("?tc") +__failure __msg("1 bpf_preempt_enable is missing") +int preempt_lock_missing_1(struct __sk_buff *ctx) +{ + bpf_preempt_disable(); + return 0; +} + +SEC("?tc") +__failure __msg("2 bpf_preempt_enable(s) are missing") +int preempt_lock_missing_2(struct __sk_buff *ctx) +{ + bpf_preempt_disable(); + bpf_preempt_disable(); + return 0; +} + +SEC("?tc") +__failure __msg("3 bpf_preempt_enable(s) are missing") +int preempt_lock_missing_3(struct __sk_buff *ctx) +{ + bpf_preempt_disable(); + bpf_preempt_disable(); + bpf_preempt_disable(); + return 0; +} + +SEC("?tc") +__failure __msg("1 bpf_preempt_enable is missing") +int preempt_lock_missing_3_minus_2(struct __sk_buff *ctx) +{ + bpf_preempt_disable(); + bpf_preempt_disable(); + bpf_preempt_disable(); + bpf_preempt_enable(); + bpf_preempt_enable(); + return 0; +} + +static __noinline void preempt_disable(void) +{ + bpf_preempt_disable(); +} + +static __noinline void preempt_enable(void) +{ + bpf_preempt_enable(); +} + +SEC("?tc") +__failure __msg("1 bpf_preempt_enable is missing") +int preempt_lock_missing_1_subprog(struct __sk_buff *ctx) +{ + preempt_disable(); + return 0; +} + +SEC("?tc") +__failure __msg("2 bpf_preempt_enable(s) are missing") +int preempt_lock_missing_2_subprog(struct __sk_buff *ctx) +{ + preempt_disable(); + preempt_disable(); + return 0; +} + +SEC("?tc") +__failure __msg("1 bpf_preempt_enable is missing") +int preempt_lock_missing_2_minus_1_subprog(struct __sk_buff *ctx) +{ + preempt_disable(); + preempt_disable(); + preempt_enable(); + return 0; +} + +static __noinline void preempt_balance_subprog(void) +{ + preempt_disable(); + preempt_enable(); +} + +SEC("?tc") +__success int preempt_balance(struct __sk_buff *ctx) +{ + bpf_guard_preempt(); + return 0; +} + +SEC("?tc") +__success int preempt_balance_subprog_test(struct __sk_buff *ctx) +{ + preempt_balance_subprog(); + return 0; +} + +SEC("?fentry.s/" SYS_PREFIX "sys_getpgid") +__failure __msg("sleepable helper bpf_copy_from_user#") +int preempt_sleepable_helper(void *ctx) +{ + u32 data; + + bpf_preempt_disable(); + bpf_copy_from_user(&data, sizeof(data), NULL); + bpf_preempt_enable(); + return 0; +} + +int __noinline preempt_global_subprog(void) +{ + preempt_balance_subprog(); + return 0; +} + +SEC("?tc") +__failure __msg("global function calls are not allowed with preemption disabled") +int preempt_global_subprog_test(struct __sk_buff *ctx) +{ + preempt_disable(); + preempt_global_subprog(); + preempt_enable(); + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/sample_map_ret0.c b/tools/testing/selftests/bpf/progs/sample_map_ret0.c deleted file mode 100644 index 495990d355ef..000000000000 --- a/tools/testing/selftests/bpf/progs/sample_map_ret0.c +++ /dev/null @@ -1,34 +0,0 @@ -/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */ -#include <linux/bpf.h> -#include <bpf/bpf_helpers.h> - -struct { - __uint(type, BPF_MAP_TYPE_HASH); - __type(key, __u32); - __type(value, long); - __uint(max_entries, 2); -} htab SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_ARRAY); - __type(key, __u32); - __type(value, long); - __uint(max_entries, 2); -} array SEC(".maps"); - -/* Sample program which should always load for testing control paths. */ -SEC(".text") int func() -{ - __u64 key64 = 0; - __u32 key = 0; - long *value; - - value = bpf_map_lookup_elem(&htab, &key); - if (!value) - return 1; - value = bpf_map_lookup_elem(&array, &key64); - if (!value) - return 1; - - return 0; -} diff --git a/tools/testing/selftests/bpf/progs/sample_ret0.c b/tools/testing/selftests/bpf/progs/sample_ret0.c deleted file mode 100644 index fec99750d6ea..000000000000 --- a/tools/testing/selftests/bpf/progs/sample_ret0.c +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */ - -/* Sample program which should always load for testing control paths. */ -int func() -{ - return 0; -} diff --git a/tools/testing/selftests/bpf/progs/sendmsg4_prog.c b/tools/testing/selftests/bpf/progs/sendmsg4_prog.c index 351e79aef2fa..edc159598a0e 100644 --- a/tools/testing/selftests/bpf/progs/sendmsg4_prog.c +++ b/tools/testing/selftests/bpf/progs/sendmsg4_prog.c @@ -49,4 +49,10 @@ int sendmsg_v4_prog(struct bpf_sock_addr *ctx) return 1; } +SEC("cgroup/sendmsg4") +int sendmsg_v4_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c index bf9b46b806f6..36a7f960799f 100644 --- a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c +++ b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c @@ -20,6 +20,11 @@ #define DST_REWRITE_IP6_2 0 #define DST_REWRITE_IP6_3 1 +#define DST_REWRITE_IP6_V4_MAPPED_0 0 +#define DST_REWRITE_IP6_V4_MAPPED_1 0 +#define DST_REWRITE_IP6_V4_MAPPED_2 0x0000FFFF +#define DST_REWRITE_IP6_V4_MAPPED_3 0xc0a80004 // 192.168.0.4 + #define DST_REWRITE_PORT6 6666 SEC("cgroup/sendmsg6") @@ -59,4 +64,56 @@ int sendmsg_v6_prog(struct bpf_sock_addr *ctx) return 1; } +SEC("cgroup/sendmsg6") +int sendmsg_v6_v4mapped_prog(struct bpf_sock_addr *ctx) +{ + /* Rewrite source. */ + ctx->msg_src_ip6[0] = bpf_htonl(SRC_REWRITE_IP6_0); + ctx->msg_src_ip6[1] = bpf_htonl(SRC_REWRITE_IP6_1); + ctx->msg_src_ip6[2] = bpf_htonl(SRC_REWRITE_IP6_2); + ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3); + + /* Rewrite destination. */ + ctx->user_ip6[0] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_0); + ctx->user_ip6[1] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_1); + ctx->user_ip6[2] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_2); + ctx->user_ip6[3] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_3); + + ctx->user_port = bpf_htons(DST_REWRITE_PORT6); + + return 1; +} + +SEC("cgroup/sendmsg6") +int sendmsg_v6_wildcard_prog(struct bpf_sock_addr *ctx) +{ + /* Rewrite source. */ + ctx->msg_src_ip6[0] = bpf_htonl(SRC_REWRITE_IP6_0); + ctx->msg_src_ip6[1] = bpf_htonl(SRC_REWRITE_IP6_1); + ctx->msg_src_ip6[2] = bpf_htonl(SRC_REWRITE_IP6_2); + ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3); + + /* Rewrite destination. */ + ctx->user_ip6[0] = bpf_htonl(0); + ctx->user_ip6[1] = bpf_htonl(0); + ctx->user_ip6[2] = bpf_htonl(0); + ctx->user_ip6[3] = bpf_htonl(0); + + ctx->user_port = bpf_htons(DST_REWRITE_PORT6); + + return 1; +} + +SEC("cgroup/sendmsg6") +int sendmsg_v6_preserve_dst_prog(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/sendmsg6") +int sendmsg_v6_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c b/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c index d8869b03dda9..332d0eb1116f 100644 --- a/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c +++ b/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c @@ -36,4 +36,10 @@ int sendmsg_unix_prog(struct bpf_sock_addr *ctx) return 1; } +SEC("cgroup/sendmsg_unix") +int sendmsg_unix_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/skb_pkt_end.c b/tools/testing/selftests/bpf/progs/skb_pkt_end.c index 992b7861003a..db4abd2682fc 100644 --- a/tools/testing/selftests/bpf/progs/skb_pkt_end.c +++ b/tools/testing/selftests/bpf/progs/skb_pkt_end.c @@ -1,5 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 +#ifndef BPF_NO_PRESERVE_ACCESS_INDEX #define BPF_NO_PRESERVE_ACCESS_INDEX +#endif #include <vmlinux.h> #include <bpf/bpf_core_read.h> #include <bpf/bpf_helpers.h> diff --git a/tools/testing/selftests/bpf/progs/sock_addr_kern.c b/tools/testing/selftests/bpf/progs/sock_addr_kern.c new file mode 100644 index 000000000000..8386bb15ccdc --- /dev/null +++ b/tools/testing/selftests/bpf/progs/sock_addr_kern.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Google LLC */ +#include <vmlinux.h> +#include <bpf/bpf_helpers.h> +#include "../bpf_testmod/bpf_testmod_kfunc.h" + +SEC("syscall") +int init_sock(struct init_sock_args *args) +{ + bpf_kfunc_init_sock(args); + + return 0; +} + +SEC("syscall") +int close_sock(void *ctx) +{ + bpf_kfunc_close_sock(); + + return 0; +} + +SEC("syscall") +int kernel_connect(struct addr_args *args) +{ + return bpf_kfunc_call_kernel_connect(args); +} + +SEC("syscall") +int kernel_bind(struct addr_args *args) +{ + return bpf_kfunc_call_kernel_bind(args); +} + +SEC("syscall") +int kernel_listen(struct addr_args *args) +{ + return bpf_kfunc_call_kernel_listen(); +} + +SEC("syscall") +int kernel_sendmsg(struct sendmsg_args *args) +{ + return bpf_kfunc_call_kernel_sendmsg(args); +} + +SEC("syscall") +int sock_sendmsg(struct sendmsg_args *args) +{ + return bpf_kfunc_call_sock_sendmsg(args); +} + +SEC("syscall") +int kernel_getsockname(struct addr_args *args) +{ + return bpf_kfunc_call_kernel_getsockname(args); +} + +SEC("syscall") +int kernel_getpeername(struct addr_args *args) +{ + return bpf_kfunc_call_kernel_getpeername(args); +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/sockopt_qos_to_cc.c b/tools/testing/selftests/bpf/progs/sockopt_qos_to_cc.c index 83753b00a556..5c3614333b01 100644 --- a/tools/testing/selftests/bpf/progs/sockopt_qos_to_cc.c +++ b/tools/testing/selftests/bpf/progs/sockopt_qos_to_cc.c @@ -1,24 +1,20 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2021 Facebook */ -#include <string.h> -#include <linux/tcp.h> -#include <netinet/in.h> -#include <linux/bpf.h> -#include <bpf/bpf_helpers.h> -#include "bpf_tcp_helpers.h" +#include "bpf_tracing_net.h" char _license[] SEC("license") = "GPL"; __s32 page_size = 0; +const char cc_reno[TCP_CA_NAME_MAX] = "reno"; +const char cc_cubic[TCP_CA_NAME_MAX] = "cubic"; + SEC("cgroup/setsockopt") int sockopt_qos_to_cc(struct bpf_sockopt *ctx) { void *optval_end = ctx->optval_end; int *optval = ctx->optval; char buf[TCP_CA_NAME_MAX]; - char cc_reno[TCP_CA_NAME_MAX] = "reno"; - char cc_cubic[TCP_CA_NAME_MAX] = "cubic"; if (ctx->level != SOL_IPV6 || ctx->optname != IPV6_TCLASS) goto out; @@ -29,11 +25,11 @@ int sockopt_qos_to_cc(struct bpf_sockopt *ctx) if (bpf_getsockopt(ctx->sk, SOL_TCP, TCP_CONGESTION, &buf, sizeof(buf))) return 0; - if (!tcp_cc_eq(buf, cc_cubic)) + if (bpf_strncmp(buf, sizeof(buf), cc_cubic)) return 0; if (*optval == 0x2d) { - if (bpf_setsockopt(ctx->sk, SOL_TCP, TCP_CONGESTION, &cc_reno, + if (bpf_setsockopt(ctx->sk, SOL_TCP, TCP_CONGESTION, (void *)&cc_reno, sizeof(cc_reno))) return 0; } diff --git a/tools/testing/selftests/bpf/progs/struct_ops_forgotten_cb.c b/tools/testing/selftests/bpf/progs/struct_ops_forgotten_cb.c new file mode 100644 index 000000000000..3c822103bd40 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/struct_ops_forgotten_cb.c @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ +#include <vmlinux.h> +#include <bpf/bpf_tracing.h> +#include "../bpf_testmod/bpf_testmod.h" + +char _license[] SEC("license") = "GPL"; + +SEC("struct_ops/test_1") +int BPF_PROG(test_1_forgotten) +{ + return 0; +} + +SEC(".struct_ops.link") +struct bpf_testmod_ops ops = { + /* we forgot to reference test_1_forgotten above, oops */ +}; + diff --git a/tools/testing/selftests/bpf/progs/struct_ops_module.c b/tools/testing/selftests/bpf/progs/struct_ops_module.c index 026cabfa7f1f..4c56d4a9d9f4 100644 --- a/tools/testing/selftests/bpf/progs/struct_ops_module.c +++ b/tools/testing/selftests/bpf/progs/struct_ops_module.c @@ -23,7 +23,7 @@ void BPF_PROG(test_2, int a, int b) test_2_result = a + b; } -SEC("struct_ops/test_3") +SEC("?struct_ops/test_3") int BPF_PROG(test_3, int a, int b) { test_2_result = a + b + 3; @@ -54,3 +54,37 @@ struct bpf_testmod_ops___v2 testmod_2 = { .test_1 = (void *)test_1, .test_2 = (void *)test_2_v2, }; + +struct bpf_testmod_ops___zeroed { + int (*test_1)(void); + void (*test_2)(int a, int b); + int (*test_maybe_null)(int dummy, struct task_struct *task); + void (*zeroed_op)(int a, int b); + int zeroed; +}; + +SEC("struct_ops/test_3") +int BPF_PROG(zeroed_op) +{ + return 1; +} + +SEC(".struct_ops.link") +struct bpf_testmod_ops___zeroed testmod_zeroed = { + .test_1 = (void *)test_1, + .test_2 = (void *)test_2_v2, + .zeroed_op = (void *)zeroed_op, +}; + +struct bpf_testmod_ops___incompatible { + int (*test_1)(void); + void (*test_2)(int *a); + int data; +}; + +SEC(".struct_ops.link") +struct bpf_testmod_ops___incompatible testmod_incompatible = { + .test_1 = (void *)test_1, + .test_2 = (void *)test_2, + .data = 3, +}; diff --git a/tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c b/tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c new file mode 100644 index 000000000000..fa2021388485 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c @@ -0,0 +1,22 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ +#include <vmlinux.h> +#include <bpf/bpf_tracing.h> +#include "../bpf_testmod/bpf_testmod.h" + +char _license[] SEC("license") = "GPL"; + +int rand; +int arr[1]; + +SEC("struct_ops/test_1") +int BPF_PROG(test_1_turn_off) +{ + return arr[rand]; /* potentially way out of range access */ +} + +SEC(".struct_ops.link") +struct bpf_testmod_ops ops = { + .test_1 = (void *)test_1_turn_off, +}; + diff --git a/tools/testing/selftests/bpf/progs/task_kfunc_common.h b/tools/testing/selftests/bpf/progs/task_kfunc_common.h index 41f2d44f49cb..6720c4b5be41 100644 --- a/tools/testing/selftests/bpf/progs/task_kfunc_common.h +++ b/tools/testing/selftests/bpf/progs/task_kfunc_common.h @@ -13,7 +13,7 @@ struct __tasks_kfunc_map_value { struct task_struct __kptr * task; }; -struct hash_map { +struct { __uint(type, BPF_MAP_TYPE_HASH); __type(key, int); __type(value, struct __tasks_kfunc_map_value); diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c b/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c index 7bb872fb22dd..0016c90e9c13 100644 --- a/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c +++ b/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c @@ -1,24 +1,18 @@ // SPDX-License-Identifier: GPL-2.0 -#include "vmlinux.h" - +#include "bpf_tracing_net.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; -static inline struct tcp_sock *tcp_sk(const struct sock *sk) -{ - return (struct tcp_sock *)sk; -} - -SEC("struct_ops/incompl_cong_ops_ssthresh") +SEC("struct_ops") __u32 BPF_PROG(incompl_cong_ops_ssthresh, struct sock *sk) { return tcp_sk(sk)->snd_ssthresh; } -SEC("struct_ops/incompl_cong_ops_undo_cwnd") +SEC("struct_ops") __u32 BPF_PROG(incompl_cong_ops_undo_cwnd, struct sock *sk) { return tcp_sk(sk)->snd_cwnd; diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c b/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c new file mode 100644 index 000000000000..f95862f570b7 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c @@ -0,0 +1,121 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Facebook */ + +#include "vmlinux.h" +#include <bpf/bpf_tracing.h> + +extern void bbr_init(struct sock *sk) __ksym; +extern void bbr_main(struct sock *sk, u32 ack, int flag, const struct rate_sample *rs) __ksym; +extern u32 bbr_sndbuf_expand(struct sock *sk) __ksym; +extern u32 bbr_undo_cwnd(struct sock *sk) __ksym; +extern void bbr_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym; +extern u32 bbr_ssthresh(struct sock *sk) __ksym; +extern u32 bbr_min_tso_segs(struct sock *sk) __ksym; +extern void bbr_set_state(struct sock *sk, u8 new_state) __ksym; + +extern void dctcp_init(struct sock *sk) __ksym; +extern void dctcp_update_alpha(struct sock *sk, u32 flags) __ksym; +extern void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev) __ksym; +extern u32 dctcp_ssthresh(struct sock *sk) __ksym; +extern u32 dctcp_cwnd_undo(struct sock *sk) __ksym; +extern void dctcp_state(struct sock *sk, u8 new_state) __ksym; + +extern void cubictcp_init(struct sock *sk) __ksym; +extern u32 cubictcp_recalc_ssthresh(struct sock *sk) __ksym; +extern void cubictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked) __ksym; +extern void cubictcp_state(struct sock *sk, u8 new_state) __ksym; +extern void cubictcp_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym; +extern void cubictcp_acked(struct sock *sk, const struct ack_sample *sample) __ksym; + +SEC("struct_ops") +void BPF_PROG(init, struct sock *sk) +{ + bbr_init(sk); + dctcp_init(sk); + cubictcp_init(sk); +} + +SEC("struct_ops") +void BPF_PROG(in_ack_event, struct sock *sk, u32 flags) +{ + dctcp_update_alpha(sk, flags); +} + +SEC("struct_ops") +void BPF_PROG(cong_control, struct sock *sk, u32 ack, int flag, const struct rate_sample *rs) +{ + bbr_main(sk, ack, flag, rs); +} + +SEC("struct_ops") +void BPF_PROG(cong_avoid, struct sock *sk, u32 ack, u32 acked) +{ + cubictcp_cong_avoid(sk, ack, acked); +} + +SEC("struct_ops") +u32 BPF_PROG(sndbuf_expand, struct sock *sk) +{ + return bbr_sndbuf_expand(sk); +} + +SEC("struct_ops") +u32 BPF_PROG(undo_cwnd, struct sock *sk) +{ + bbr_undo_cwnd(sk); + return dctcp_cwnd_undo(sk); +} + +SEC("struct_ops") +void BPF_PROG(cwnd_event, struct sock *sk, enum tcp_ca_event event) +{ + bbr_cwnd_event(sk, event); + dctcp_cwnd_event(sk, event); + cubictcp_cwnd_event(sk, event); +} + +SEC("struct_ops") +u32 BPF_PROG(ssthresh, struct sock *sk) +{ + bbr_ssthresh(sk); + dctcp_ssthresh(sk); + return cubictcp_recalc_ssthresh(sk); +} + +SEC("struct_ops") +u32 BPF_PROG(min_tso_segs, struct sock *sk) +{ + return bbr_min_tso_segs(sk); +} + +SEC("struct_ops") +void BPF_PROG(set_state, struct sock *sk, u8 new_state) +{ + bbr_set_state(sk, new_state); + dctcp_state(sk, new_state); + cubictcp_state(sk, new_state); +} + +SEC("struct_ops") +void BPF_PROG(pkts_acked, struct sock *sk, const struct ack_sample *sample) +{ + cubictcp_acked(sk, sample); +} + +SEC(".struct_ops") +struct tcp_congestion_ops tcp_ca_kfunc = { + .init = (void *)init, + .in_ack_event = (void *)in_ack_event, + .cong_control = (void *)cong_control, + .cong_avoid = (void *)cong_avoid, + .sndbuf_expand = (void *)sndbuf_expand, + .undo_cwnd = (void *)undo_cwnd, + .cwnd_event = (void *)cwnd_event, + .ssthresh = (void *)ssthresh, + .min_tso_segs = (void *)min_tso_segs, + .set_state = (void *)set_state, + .pkts_acked = (void *)pkts_acked, + .name = "tcp_ca_kfunc", +}; + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c b/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c index c06f4a41c21a..54f916a931c6 100644 --- a/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c +++ b/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c @@ -7,7 +7,7 @@ char _license[] SEC("license") = "GPL"; -SEC("struct_ops/unsupp_cong_op_get_info") +SEC("struct_ops") size_t BPF_PROG(unsupp_cong_op_get_info, struct sock *sk, u32 ext, int *attr, union tcp_cc_info *info) { diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_update.c b/tools/testing/selftests/bpf/progs/tcp_ca_update.c index b93a0ed33057..e4bd82bc0d01 100644 --- a/tools/testing/selftests/bpf/progs/tcp_ca_update.c +++ b/tools/testing/selftests/bpf/progs/tcp_ca_update.c @@ -1,7 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 -#include "vmlinux.h" - +#include "bpf_tracing_net.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> @@ -10,36 +9,31 @@ char _license[] SEC("license") = "GPL"; int ca1_cnt = 0; int ca2_cnt = 0; -static inline struct tcp_sock *tcp_sk(const struct sock *sk) -{ - return (struct tcp_sock *)sk; -} - -SEC("struct_ops/ca_update_1_init") +SEC("struct_ops") void BPF_PROG(ca_update_1_init, struct sock *sk) { ca1_cnt++; } -SEC("struct_ops/ca_update_2_init") +SEC("struct_ops") void BPF_PROG(ca_update_2_init, struct sock *sk) { ca2_cnt++; } -SEC("struct_ops/ca_update_cong_control") +SEC("struct_ops") void BPF_PROG(ca_update_cong_control, struct sock *sk, const struct rate_sample *rs) { } -SEC("struct_ops/ca_update_ssthresh") +SEC("struct_ops") __u32 BPF_PROG(ca_update_ssthresh, struct sock *sk) { return tcp_sk(sk)->snd_ssthresh; } -SEC("struct_ops/ca_update_undo_cwnd") +SEC("struct_ops") __u32 BPF_PROG(ca_update_undo_cwnd, struct sock *sk) { return tcp_sk(sk)->snd_cwnd; diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c b/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c index 0724a79cec78..a58b5194fc89 100644 --- a/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c +++ b/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c @@ -1,7 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 -#include "vmlinux.h" - +#include "bpf_tracing_net.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> @@ -11,22 +10,17 @@ char _license[] SEC("license") = "GPL"; #define min(a, b) ((a) < (b) ? (a) : (b)) -static inline struct tcp_sock *tcp_sk(const struct sock *sk) -{ - return (struct tcp_sock *)sk; -} - -static inline unsigned int tcp_left_out(const struct tcp_sock *tp) +static unsigned int tcp_left_out(const struct tcp_sock *tp) { return tp->sacked_out + tp->lost_out; } -static inline unsigned int tcp_packets_in_flight(const struct tcp_sock *tp) +static unsigned int tcp_packets_in_flight(const struct tcp_sock *tp) { return tp->packets_out - tcp_left_out(tp) + tp->retrans_out; } -SEC("struct_ops/write_sk_pacing_init") +SEC("struct_ops") void BPF_PROG(write_sk_pacing_init, struct sock *sk) { #ifdef ENABLE_ATOMICS_TESTS @@ -37,7 +31,7 @@ void BPF_PROG(write_sk_pacing_init, struct sock *sk) #endif } -SEC("struct_ops/write_sk_pacing_cong_control") +SEC("struct_ops") void BPF_PROG(write_sk_pacing_cong_control, struct sock *sk, const struct rate_sample *rs) { @@ -49,13 +43,13 @@ void BPF_PROG(write_sk_pacing_cong_control, struct sock *sk, tp->app_limited = (tp->delivered + tcp_packets_in_flight(tp)) ?: 1; } -SEC("struct_ops/write_sk_pacing_ssthresh") +SEC("struct_ops") __u32 BPF_PROG(write_sk_pacing_ssthresh, struct sock *sk) { return tcp_sk(sk)->snd_ssthresh; } -SEC("struct_ops/write_sk_pacing_undo_cwnd") +SEC("struct_ops") __u32 BPF_PROG(write_sk_pacing_undo_cwnd, struct sock *sk) { return tcp_sk(sk)->snd_cwnd; diff --git a/tools/testing/selftests/bpf/progs/tcp_rtt.c b/tools/testing/selftests/bpf/progs/tcp_rtt.c index 0988d79f1587..42c729f85524 100644 --- a/tools/testing/selftests/bpf/progs/tcp_rtt.c +++ b/tools/testing/selftests/bpf/progs/tcp_rtt.c @@ -10,6 +10,9 @@ struct tcp_rtt_storage { __u32 delivered; __u32 delivered_ce; __u32 icsk_retransmits; + + __u32 mrtt_us; /* args[0] */ + __u32 srtt; /* args[1] */ }; struct { @@ -55,5 +58,8 @@ int _sockops(struct bpf_sock_ops *ctx) storage->delivered_ce = tcp_sk->delivered_ce; storage->icsk_retransmits = tcp_sk->icsk_retransmits; + storage->mrtt_us = ctx->args[0]; + storage->srtt = ctx->args[1]; + return 1; } diff --git a/tools/testing/selftests/bpf/progs/test_bpf_cookie.c b/tools/testing/selftests/bpf/progs/test_bpf_cookie.c index 5a3a80f751c4..c83142b55f47 100644 --- a/tools/testing/selftests/bpf/progs/test_bpf_cookie.c +++ b/tools/testing/selftests/bpf/progs/test_bpf_cookie.c @@ -15,6 +15,8 @@ __u64 uprobe_res; __u64 uretprobe_res; __u64 tp_res; __u64 pe_res; +__u64 raw_tp_res; +__u64 tp_btf_res; __u64 fentry_res; __u64 fexit_res; __u64 fmod_ret_res; @@ -87,6 +89,20 @@ int handle_pe(struct pt_regs *ctx) return 0; } +SEC("raw_tp/sys_enter") +int handle_raw_tp(void *ctx) +{ + update(ctx, &raw_tp_res); + return 0; +} + +SEC("tp_btf/sys_enter") +int handle_tp_btf(void *ctx) +{ + update(ctx, &tp_btf_res); + return 0; +} + SEC("fentry/bpf_fentry_test1") int BPF_PROG(fentry_test1, int a) { diff --git a/tools/testing/selftests/bpf/progs/test_btf_skc_cls_ingress.c b/tools/testing/selftests/bpf/progs/test_btf_skc_cls_ingress.c index e2bea4da194b..f0759efff6ef 100644 --- a/tools/testing/selftests/bpf/progs/test_btf_skc_cls_ingress.c +++ b/tools/testing/selftests/bpf/progs/test_btf_skc_cls_ingress.c @@ -1,19 +1,13 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2020 Facebook */ -#include <string.h> -#include <errno.h> -#include <netinet/in.h> -#include <linux/stddef.h> -#include <linux/bpf.h> -#include <linux/ipv6.h> -#include <linux/tcp.h> -#include <linux/if_ether.h> -#include <linux/pkt_cls.h> - +#include "bpf_tracing_net.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> -#include "bpf_tcp_helpers.h" + +#ifndef ENOENT +#define ENOENT 2 +#endif struct sockaddr_in6 srv_sa6 = {}; __u16 listen_tp_sport = 0; diff --git a/tools/testing/selftests/bpf/progs/test_global_func10.c b/tools/testing/selftests/bpf/progs/test_global_func10.c index 8fba3f3649e2..5da001ca57a5 100644 --- a/tools/testing/selftests/bpf/progs/test_global_func10.c +++ b/tools/testing/selftests/bpf/progs/test_global_func10.c @@ -4,6 +4,10 @@ #include <bpf/bpf_helpers.h> #include "bpf_misc.h" +#if !defined(__clang__) +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + struct Small { long x; }; diff --git a/tools/testing/selftests/bpf/progs/test_lwt_redirect.c b/tools/testing/selftests/bpf/progs/test_lwt_redirect.c index 8c895122f293..83439b87b766 100644 --- a/tools/testing/selftests/bpf/progs/test_lwt_redirect.c +++ b/tools/testing/selftests/bpf/progs/test_lwt_redirect.c @@ -3,7 +3,7 @@ #include <bpf/bpf_endian.h> #include <bpf/bpf_helpers.h> #include <linux/ip.h> -#include "bpf_tracing_net.h" +#include <linux/if_ether.h> /* We don't care about whether the packet can be received by network stack. * Just care if the packet is sent to the correct device at correct direction diff --git a/tools/testing/selftests/bpf/progs/test_module_attach.c b/tools/testing/selftests/bpf/progs/test_module_attach.c index 8a1b50f3a002..cc1a012d038f 100644 --- a/tools/testing/selftests/bpf/progs/test_module_attach.c +++ b/tools/testing/selftests/bpf/progs/test_module_attach.c @@ -73,6 +73,29 @@ int BPF_PROG(handle_fentry_manual, return 0; } +__u32 fentry_explicit_read_sz = 0; + +SEC("fentry/bpf_testmod:bpf_testmod_test_read") +int BPF_PROG(handle_fentry_explicit, + struct file *file, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len) +{ + fentry_explicit_read_sz = len; + return 0; +} + + +__u32 fentry_explicit_manual_read_sz = 0; + +SEC("fentry") +int BPF_PROG(handle_fentry_explicit_manual, + struct file *file, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len) +{ + fentry_explicit_manual_read_sz = len; + return 0; +} + __u32 fexit_read_sz = 0; int fexit_ret = 0; diff --git a/tools/testing/selftests/bpf/progs/test_ns_current_pid_tgid.c b/tools/testing/selftests/bpf/progs/test_ns_current_pid_tgid.c index 0763d49f9c42..386315afad65 100644 --- a/tools/testing/selftests/bpf/progs/test_ns_current_pid_tgid.c +++ b/tools/testing/selftests/bpf/progs/test_ns_current_pid_tgid.c @@ -5,23 +5,48 @@ #include <stdint.h> #include <bpf/bpf_helpers.h> +struct { + __uint(type, BPF_MAP_TYPE_SOCKMAP); + __uint(max_entries, 2); + __type(key, __u32); + __type(value, __u32); +} sock_map SEC(".maps"); + __u64 user_pid = 0; __u64 user_tgid = 0; __u64 dev = 0; __u64 ino = 0; -SEC("tracepoint/syscalls/sys_enter_nanosleep") -int handler(const void *ctx) +static void get_pid_tgid(void) { struct bpf_pidns_info nsdata; if (bpf_get_ns_current_pid_tgid(dev, ino, &nsdata, sizeof(struct bpf_pidns_info))) - return 0; + return; user_pid = nsdata.pid; user_tgid = nsdata.tgid; +} +SEC("?tracepoint/syscalls/sys_enter_nanosleep") +int tp_handler(const void *ctx) +{ + get_pid_tgid(); return 0; } +SEC("?cgroup/bind4") +int cgroup_bind4(struct bpf_sock_addr *ctx) +{ + get_pid_tgid(); + return 1; +} + +SEC("?sk_msg") +int sk_msg(struct sk_msg_md *msg) +{ + get_pid_tgid(); + return SK_PASS; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf_n.c b/tools/testing/selftests/bpf/progs/test_ringbuf_n.c new file mode 100644 index 000000000000..8669eb42dbe0 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_ringbuf_n.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2024 Andrea Righi <andrea.righi@canonical.com> + +#include <linux/bpf.h> +#include <sched.h> +#include <unistd.h> +#include <bpf/bpf_helpers.h> +#include "bpf_misc.h" + +char _license[] SEC("license") = "GPL"; + +#define TASK_COMM_LEN 16 + +struct sample { + int pid; + long value; + char comm[16]; +}; + +struct { + __uint(type, BPF_MAP_TYPE_RINGBUF); +} ringbuf SEC(".maps"); + +int pid = 0; +long value = 0; + +SEC("fentry/" SYS_PREFIX "sys_getpgid") +int test_ringbuf_n(void *ctx) +{ + int cur_pid = bpf_get_current_pid_tgid() >> 32; + struct sample *sample; + + if (cur_pid != pid) + return 0; + + sample = bpf_ringbuf_reserve(&ringbuf, sizeof(*sample), 0); + if (!sample) + return 0; + + sample->pid = pid; + sample->value = value; + bpf_get_current_comm(sample->comm, sizeof(sample->comm)); + + bpf_ringbuf_submit(sample, 0); + + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/test_skmsg_load_helpers.c b/tools/testing/selftests/bpf/progs/test_skmsg_load_helpers.c index 45e8fc75a739..996b177324ba 100644 --- a/tools/testing/selftests/bpf/progs/test_skmsg_load_helpers.c +++ b/tools/testing/selftests/bpf/progs/test_skmsg_load_helpers.c @@ -24,8 +24,7 @@ struct { __type(value, __u64); } socket_storage SEC(".maps"); -SEC("sk_msg") -int prog_msg_verdict(struct sk_msg_md *msg) +static int prog_msg_verdict_common(struct sk_msg_md *msg) { struct task_struct *task = (struct task_struct *)bpf_get_current_task(); int verdict = SK_PASS; @@ -44,4 +43,28 @@ int prog_msg_verdict(struct sk_msg_md *msg) return verdict; } +SEC("sk_msg") +int prog_msg_verdict(struct sk_msg_md *msg) +{ + return prog_msg_verdict_common(msg); +} + +SEC("sk_msg") +int prog_msg_verdict_clone(struct sk_msg_md *msg) +{ + return prog_msg_verdict_common(msg); +} + +SEC("sk_msg") +int prog_msg_verdict_clone2(struct sk_msg_md *msg) +{ + return prog_msg_verdict_common(msg); +} + +SEC("sk_skb/stream_verdict") +int prog_skb_verdict(struct __sk_buff *skb) +{ + return SK_PASS; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_sock_fields.c b/tools/testing/selftests/bpf/progs/test_sock_fields.c index f75e531bf36f..196844be349c 100644 --- a/tools/testing/selftests/bpf/progs/test_sock_fields.c +++ b/tools/testing/selftests/bpf/progs/test_sock_fields.c @@ -7,7 +7,6 @@ #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> -#include "bpf_tcp_helpers.h" enum bpf_linum_array_idx { EGRESS_LINUM_IDX, @@ -42,6 +41,10 @@ struct { __type(value, struct bpf_spinlock_cnt); } sk_pkt_out_cnt10 SEC(".maps"); +struct tcp_sock { + __u32 lsndtime; +} __attribute__((preserve_access_index)); + struct bpf_tcp_sock listen_tp = {}; struct sockaddr_in6 srv_sa6 = {}; struct bpf_tcp_sock cli_tp = {}; diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_pass_prog.c b/tools/testing/selftests/bpf/progs/test_sockmap_pass_prog.c index 1d86a717a290..69aacc96db36 100644 --- a/tools/testing/selftests/bpf/progs/test_sockmap_pass_prog.c +++ b/tools/testing/selftests/bpf/progs/test_sockmap_pass_prog.c @@ -23,10 +23,25 @@ struct { __type(value, int); } sock_map_msg SEC(".maps"); -SEC("sk_skb") +SEC("sk_skb/stream_verdict") int prog_skb_verdict(struct __sk_buff *skb) { return SK_PASS; } +int clone_called; + +SEC("sk_skb/stream_verdict") +int prog_skb_verdict_clone(struct __sk_buff *skb) +{ + clone_called = 1; + return SK_PASS; +} + +SEC("sk_skb/stream_parser") +int prog_skb_parser(struct __sk_buff *skb) +{ + return SK_PASS; +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_skb_verdict_attach.c b/tools/testing/selftests/bpf/progs/test_sockmap_skb_verdict_attach.c index 3c69aa971738..d25b0bb30fc0 100644 --- a/tools/testing/selftests/bpf/progs/test_sockmap_skb_verdict_attach.c +++ b/tools/testing/selftests/bpf/progs/test_sockmap_skb_verdict_attach.c @@ -9,7 +9,7 @@ struct { __type(value, __u64); } sock_map SEC(".maps"); -SEC("sk_skb") +SEC("sk_skb/verdict") int prog_skb_verdict(struct __sk_buff *skb) { return SK_DROP; diff --git a/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c b/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c index a3f3f43fc195..6935f32eeb8f 100644 --- a/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c +++ b/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c @@ -1,18 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 -#include <stddef.h> -#include <string.h> -#include <netinet/in.h> -#include <linux/bpf.h> -#include <linux/if_ether.h> -#include <linux/if_packet.h> -#include <linux/ip.h> -#include <linux/ipv6.h> -#include <linux/types.h> -#include <linux/socket.h> -#include <linux/tcp.h> +#include "bpf_tracing_net.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> -#include "bpf_tcp_helpers.h" #include "test_tcpbpf.h" struct tcpbpf_globals global = {}; diff --git a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c index 3e436e6f7312..3f5abcf3ff13 100644 --- a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c +++ b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c @@ -567,12 +567,18 @@ int ip6vxlan_get_tunnel_src(struct __sk_buff *skb) return TC_ACT_OK; } +struct local_geneve_opt { + struct geneve_opt gopt; + int data; +}; + SEC("tc") int geneve_set_tunnel(struct __sk_buff *skb) { int ret; struct bpf_tunnel_key key; - struct geneve_opt gopt; + struct local_geneve_opt local_gopt; + struct geneve_opt *gopt = (struct geneve_opt *) &local_gopt; __builtin_memset(&key, 0x0, sizeof(key)); key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */ @@ -580,14 +586,14 @@ int geneve_set_tunnel(struct __sk_buff *skb) key.tunnel_tos = 0; key.tunnel_ttl = 64; - __builtin_memset(&gopt, 0x0, sizeof(gopt)); - gopt.opt_class = bpf_htons(0x102); /* Open Virtual Networking (OVN) */ - gopt.type = 0x08; - gopt.r1 = 0; - gopt.r2 = 0; - gopt.r3 = 0; - gopt.length = 2; /* 4-byte multiple */ - *(int *) &gopt.opt_data = bpf_htonl(0xdeadbeef); + __builtin_memset(gopt, 0x0, sizeof(local_gopt)); + gopt->opt_class = bpf_htons(0x102); /* Open Virtual Networking (OVN) */ + gopt->type = 0x08; + gopt->r1 = 0; + gopt->r2 = 0; + gopt->r3 = 0; + gopt->length = 2; /* 4-byte multiple */ + *(int *) &gopt->opt_data = bpf_htonl(0xdeadbeef); ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), BPF_F_ZERO_CSUM_TX); @@ -596,7 +602,7 @@ int geneve_set_tunnel(struct __sk_buff *skb) return TC_ACT_SHOT; } - ret = bpf_skb_set_tunnel_opt(skb, &gopt, sizeof(gopt)); + ret = bpf_skb_set_tunnel_opt(skb, gopt, sizeof(local_gopt)); if (ret < 0) { log_err(ret); return TC_ACT_SHOT; @@ -631,7 +637,8 @@ SEC("tc") int ip6geneve_set_tunnel(struct __sk_buff *skb) { struct bpf_tunnel_key key; - struct geneve_opt gopt; + struct local_geneve_opt local_gopt; + struct geneve_opt *gopt = (struct geneve_opt *) &local_gopt; int ret; __builtin_memset(&key, 0x0, sizeof(key)); @@ -647,16 +654,16 @@ int ip6geneve_set_tunnel(struct __sk_buff *skb) return TC_ACT_SHOT; } - __builtin_memset(&gopt, 0x0, sizeof(gopt)); - gopt.opt_class = bpf_htons(0x102); /* Open Virtual Networking (OVN) */ - gopt.type = 0x08; - gopt.r1 = 0; - gopt.r2 = 0; - gopt.r3 = 0; - gopt.length = 2; /* 4-byte multiple */ - *(int *) &gopt.opt_data = bpf_htonl(0xfeedbeef); + __builtin_memset(gopt, 0x0, sizeof(local_gopt)); + gopt->opt_class = bpf_htons(0x102); /* Open Virtual Networking (OVN) */ + gopt->type = 0x08; + gopt->r1 = 0; + gopt->r2 = 0; + gopt->r3 = 0; + gopt->length = 2; /* 4-byte multiple */ + *(int *) &gopt->opt_data = bpf_htonl(0xfeedbeef); - ret = bpf_skb_set_tunnel_opt(skb, &gopt, sizeof(gopt)); + ret = bpf_skb_set_tunnel_opt(skb, gopt, sizeof(gopt)); if (ret < 0) { log_err(ret); return TC_ACT_SHOT; diff --git a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c index 5c7e4758a0ca..fad94e41cef9 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c @@ -318,6 +318,14 @@ bool encap_v6(struct xdp_md *xdp, struct ctl_value *cval, return true; } +#ifndef __clang__ +#pragma GCC push_options +/* GCC optimization collapses functions and increases the number of arguments + * beyond the compatible amount supported by BPF. + */ +#pragma GCC optimize("-fno-ipa-sra") +#endif + static __attribute__ ((noinline)) bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval, struct packet_description *pckt, @@ -372,6 +380,10 @@ bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval, return true; } +#ifndef __clang__ +#pragma GCC pop_options +#endif + static __attribute__ ((noinline)) int swap_mac_and_send(void *data, void *data_end) { @@ -588,12 +600,13 @@ static void connection_table_lookup(struct real_definition **real, __attribute__ ((noinline)) static int process_l3_headers_v6(struct packet_description *pckt, __u8 *protocol, __u64 off, - __u16 *pkt_bytes, void *data, - void *data_end) + __u16 *pkt_bytes, void *extra_args[2]) { struct ipv6hdr *ip6h; __u64 iph_len; int action; + void *data = extra_args[0]; + void *data_end = extra_args[1]; ip6h = data + off; if (ip6h + 1 > data_end) @@ -619,11 +632,12 @@ static int process_l3_headers_v6(struct packet_description *pckt, __attribute__ ((noinline)) static int process_l3_headers_v4(struct packet_description *pckt, __u8 *protocol, __u64 off, - __u16 *pkt_bytes, void *data, - void *data_end) + __u16 *pkt_bytes, void *extra_args[2]) { struct iphdr *iph; int action; + void *data = extra_args[0]; + void *data_end = extra_args[1]; iph = data + off; if (iph + 1 > data_end) @@ -666,13 +680,14 @@ static int process_packet(void *data, __u64 off, void *data_end, __u8 protocol; __u32 vip_num; int action; + void *extra_args[2] = { data, data_end }; if (is_ipv6) action = process_l3_headers_v6(&pckt, &protocol, off, - &pkt_bytes, data, data_end); + &pkt_bytes, extra_args); else action = process_l3_headers_v4(&pckt, &protocol, off, - &pkt_bytes, data, data_end); + &pkt_bytes, extra_args); if (action >= 0) return action; protocol = pckt.flow.proto; diff --git a/tools/testing/selftests/bpf/progs/test_xdp_vlan.c b/tools/testing/selftests/bpf/progs/test_xdp_vlan.c index f3ec8086482d..a7588302268d 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_vlan.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_vlan.c @@ -160,7 +160,7 @@ int xdp_prognum1(struct xdp_md *ctx) /* Modifying VLAN, preserve top 4 bits */ vlan_hdr->h_vlan_TCI = - bpf_htons((bpf_ntohs(vlan_hdr->h_vlan_TCI) & 0xf000) + bpf_htons((bpf_ntohs(vlan_hdr->h_vlan_TCI) & 0xf000U) | TO_VLAN); } diff --git a/tools/testing/selftests/bpf/progs/timer.c b/tools/testing/selftests/bpf/progs/timer.c index f615da97df26..4c677c001258 100644 --- a/tools/testing/selftests/bpf/progs/timer.c +++ b/tools/testing/selftests/bpf/progs/timer.c @@ -2,9 +2,10 @@ /* Copyright (c) 2021 Facebook */ #include <linux/bpf.h> #include <time.h> +#include <stdbool.h> #include <errno.h> #include <bpf/bpf_helpers.h> -#include "bpf_tcp_helpers.h" +#include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; struct hmap_elem { diff --git a/tools/testing/selftests/bpf/progs/timer_failure.c b/tools/testing/selftests/bpf/progs/timer_failure.c index 0996c2486f05..5a2e9dabf1c6 100644 --- a/tools/testing/selftests/bpf/progs/timer_failure.c +++ b/tools/testing/selftests/bpf/progs/timer_failure.c @@ -5,8 +5,8 @@ #include <time.h> #include <errno.h> #include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> #include "bpf_misc.h" -#include "bpf_tcp_helpers.h" char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/timer_mim.c b/tools/testing/selftests/bpf/progs/timer_mim.c index 2fee7ab105ef..50ebc3f68522 100644 --- a/tools/testing/selftests/bpf/progs/timer_mim.c +++ b/tools/testing/selftests/bpf/progs/timer_mim.c @@ -4,7 +4,7 @@ #include <time.h> #include <errno.h> #include <bpf/bpf_helpers.h> -#include "bpf_tcp_helpers.h" +#include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; struct hmap_elem { diff --git a/tools/testing/selftests/bpf/progs/timer_mim_reject.c b/tools/testing/selftests/bpf/progs/timer_mim_reject.c index 5d648e3d8a41..dd3f1ed6d6e6 100644 --- a/tools/testing/selftests/bpf/progs/timer_mim_reject.c +++ b/tools/testing/selftests/bpf/progs/timer_mim_reject.c @@ -4,7 +4,7 @@ #include <time.h> #include <errno.h> #include <bpf/bpf_helpers.h> -#include "bpf_tcp_helpers.h" +#include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; struct hmap_elem { diff --git a/tools/testing/selftests/bpf/progs/trigger_bench.c b/tools/testing/selftests/bpf/progs/trigger_bench.c index 5fda43901033..2619ed193c65 100644 --- a/tools/testing/selftests/bpf/progs/trigger_bench.c +++ b/tools/testing/selftests/bpf/progs/trigger_bench.c @@ -1,6 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2020 Facebook - #include <linux/bpf.h> #include <asm/unistd.h> #include <bpf/bpf_helpers.h> @@ -9,82 +8,126 @@ char _license[] SEC("license") = "GPL"; -long hits = 0; +#define CPU_MASK 255 +#define MAX_CPUS (CPU_MASK + 1) /* should match MAX_BUCKETS in benchs/bench_trigger.c */ -SEC("tp/syscalls/sys_enter_getpgid") -int bench_trigger_tp(void *ctx) +/* matches struct counter in bench.h */ +struct counter { + long value; +} __attribute__((aligned(128))); + +struct counter hits[MAX_CPUS]; + +static __always_inline void inc_counter(void) +{ + int cpu = bpf_get_smp_processor_id(); + + __sync_add_and_fetch(&hits[cpu & CPU_MASK].value, 1); +} + +SEC("?uprobe") +int bench_trigger_uprobe(void *ctx) { - __sync_add_and_fetch(&hits, 1); + inc_counter(); return 0; } -SEC("raw_tp/sys_enter") -int BPF_PROG(bench_trigger_raw_tp, struct pt_regs *regs, long id) +const volatile int batch_iters = 0; + +SEC("?raw_tp") +int trigger_count(void *ctx) { - if (id == __NR_getpgid) - __sync_add_and_fetch(&hits, 1); + int i; + + for (i = 0; i < batch_iters; i++) + inc_counter(); + return 0; } -SEC("kprobe/" SYS_PREFIX "sys_getpgid") +SEC("?raw_tp") +int trigger_driver(void *ctx) +{ + int i; + + for (i = 0; i < batch_iters; i++) + (void)bpf_get_numa_node_id(); /* attach point for benchmarking */ + + return 0; +} + +extern int bpf_modify_return_test_tp(int nonce) __ksym __weak; + +SEC("?raw_tp") +int trigger_driver_kfunc(void *ctx) +{ + int i; + + for (i = 0; i < batch_iters; i++) + (void)bpf_modify_return_test_tp(0); /* attach point for benchmarking */ + + return 0; +} + +SEC("?kprobe/bpf_get_numa_node_id") int bench_trigger_kprobe(void *ctx) { - __sync_add_and_fetch(&hits, 1); + inc_counter(); return 0; } -SEC("kretprobe/" SYS_PREFIX "sys_getpgid") +SEC("?kretprobe/bpf_get_numa_node_id") int bench_trigger_kretprobe(void *ctx) { - __sync_add_and_fetch(&hits, 1); + inc_counter(); return 0; } -SEC("kprobe.multi/" SYS_PREFIX "sys_getpgid") +SEC("?kprobe.multi/bpf_get_numa_node_id") int bench_trigger_kprobe_multi(void *ctx) { - __sync_add_and_fetch(&hits, 1); + inc_counter(); return 0; } -SEC("kretprobe.multi/" SYS_PREFIX "sys_getpgid") +SEC("?kretprobe.multi/bpf_get_numa_node_id") int bench_trigger_kretprobe_multi(void *ctx) { - __sync_add_and_fetch(&hits, 1); + inc_counter(); return 0; } -SEC("fentry/" SYS_PREFIX "sys_getpgid") +SEC("?fentry/bpf_get_numa_node_id") int bench_trigger_fentry(void *ctx) { - __sync_add_and_fetch(&hits, 1); + inc_counter(); return 0; } -SEC("fexit/" SYS_PREFIX "sys_getpgid") +SEC("?fexit/bpf_get_numa_node_id") int bench_trigger_fexit(void *ctx) { - __sync_add_and_fetch(&hits, 1); + inc_counter(); return 0; } -SEC("fentry.s/" SYS_PREFIX "sys_getpgid") -int bench_trigger_fentry_sleep(void *ctx) +SEC("?fmod_ret/bpf_modify_return_test_tp") +int bench_trigger_fmodret(void *ctx) { - __sync_add_and_fetch(&hits, 1); - return 0; + inc_counter(); + return -22; } -SEC("fmod_ret/" SYS_PREFIX "sys_getpgid") -int bench_trigger_fmodret(void *ctx) +SEC("?tp/bpf_test_run/bpf_trigger_tp") +int bench_trigger_tp(void *ctx) { - __sync_add_and_fetch(&hits, 1); - return -22; + inc_counter(); + return 0; } -SEC("uprobe") -int bench_trigger_uprobe(void *ctx) +SEC("?raw_tp/bpf_trigger_tp") +int bench_trigger_rawtp(void *ctx) { - __sync_add_and_fetch(&hits, 1); + inc_counter(); return 0; } diff --git a/tools/testing/selftests/bpf/progs/verifier_bounds.c b/tools/testing/selftests/bpf/progs/verifier_bounds.c index 960998f16306..a0bb7fb40ea5 100644 --- a/tools/testing/selftests/bpf/progs/verifier_bounds.c +++ b/tools/testing/selftests/bpf/progs/verifier_bounds.c @@ -886,6 +886,69 @@ l1_%=: r0 = 0; \ } SEC("socket") +__description("bounds check for non const xor src dst") +__success __log_level(2) +__msg("5: (af) r0 ^= r6 ; R0_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=431,var_off=(0x0; 0x1af))") +__naked void non_const_xor_src_dst(void) +{ + asm volatile (" \ + call %[bpf_get_prandom_u32]; \ + r6 = r0; \ + call %[bpf_get_prandom_u32]; \ + r6 &= 0xaf; \ + r0 &= 0x1a0; \ + r0 ^= r6; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm(bpf_get_prandom_u32) + : __clobber_all); +} + +SEC("socket") +__description("bounds check for non const or src dst") +__success __log_level(2) +__msg("5: (4f) r0 |= r6 ; R0_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=431,var_off=(0x0; 0x1af))") +__naked void non_const_or_src_dst(void) +{ + asm volatile (" \ + call %[bpf_get_prandom_u32]; \ + r6 = r0; \ + call %[bpf_get_prandom_u32]; \ + r6 &= 0xaf; \ + r0 &= 0x1a0; \ + r0 |= r6; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm(bpf_get_prandom_u32) + : __clobber_all); +} + +SEC("socket") +__description("bounds check for non const mul regs") +__success __log_level(2) +__msg("5: (2f) r0 *= r6 ; R0_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=3825,var_off=(0x0; 0xfff))") +__naked void non_const_mul_regs(void) +{ + asm volatile (" \ + call %[bpf_get_prandom_u32]; \ + r6 = r0; \ + call %[bpf_get_prandom_u32]; \ + r6 &= 0xff; \ + r0 &= 0x0f; \ + r0 *= r6; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm(bpf_get_prandom_u32) + : __clobber_all); +} + +SEC("socket") __description("bounds checks after 32-bit truncation. test 1") __success __failure_unpriv __msg_unpriv("R0 leaks addr") __retval(0) diff --git a/tools/testing/selftests/bpf/progs/verifier_global_subprogs.c b/tools/testing/selftests/bpf/progs/verifier_global_subprogs.c index baff5ffe9405..a9fc30ed4d73 100644 --- a/tools/testing/selftests/bpf/progs/verifier_global_subprogs.c +++ b/tools/testing/selftests/bpf/progs/verifier_global_subprogs.c @@ -8,6 +8,13 @@ #include "xdp_metadata.h" #include "bpf_kfuncs.h" +/* The compiler may be able to detect the access to uninitialized + memory in the routines performing out of bound memory accesses and + emit warnings about it. This is the case of GCC. */ +#if !defined(__clang__) +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" +#endif + int arr[1]; int unkn_idx; const volatile bool call_dead_subprog = false; diff --git a/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c b/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c index 0ede0ccd090c..059aa716e3d0 100644 --- a/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c +++ b/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c @@ -30,7 +30,7 @@ struct { SEC("kprobe") __description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_KPROBE") -__failure __msg("unknown func bpf_ktime_get_coarse_ns") +__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns") __naked void in_bpf_prog_type_kprobe_1(void) { asm volatile (" \ @@ -44,7 +44,7 @@ __naked void in_bpf_prog_type_kprobe_1(void) SEC("tracepoint") __description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_TRACEPOINT") -__failure __msg("unknown func bpf_ktime_get_coarse_ns") +__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns") __naked void in_bpf_prog_type_tracepoint_1(void) { asm volatile (" \ @@ -58,7 +58,7 @@ __naked void in_bpf_prog_type_tracepoint_1(void) SEC("perf_event") __description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_PERF_EVENT") -__failure __msg("unknown func bpf_ktime_get_coarse_ns") +__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns") __naked void bpf_prog_type_perf_event_1(void) { asm volatile (" \ @@ -72,7 +72,7 @@ __naked void bpf_prog_type_perf_event_1(void) SEC("raw_tracepoint") __description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT") -__failure __msg("unknown func bpf_ktime_get_coarse_ns") +__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns") __naked void bpf_prog_type_raw_tracepoint_1(void) { asm volatile (" \ diff --git a/tools/testing/selftests/bpf/progs/verifier_iterating_callbacks.c b/tools/testing/selftests/bpf/progs/verifier_iterating_callbacks.c index 99e561f18f9b..bd676d7e615f 100644 --- a/tools/testing/selftests/bpf/progs/verifier_iterating_callbacks.c +++ b/tools/testing/selftests/bpf/progs/verifier_iterating_callbacks.c @@ -318,7 +318,7 @@ int cond_break1(const void *ctx) unsigned long i; unsigned int sum = 0; - for (i = zero; i < ARR_SZ; cond_break, i++) + for (i = zero; i < ARR_SZ && can_loop; i++) sum += i; for (i = zero; i < ARR_SZ; i++) { barrier_var(i); @@ -336,12 +336,11 @@ int cond_break2(const void *ctx) int i, j; int sum = 0; - for (i = zero; i < 1000; cond_break, i++) + for (i = zero; i < 1000 && can_loop; i++) for (j = zero; j < 1000; j++) { sum += i + j; cond_break; - } - + } return sum; } @@ -349,7 +348,7 @@ static __noinline int loop(void) { int i, sum = 0; - for (i = zero; i <= 1000000; i++, cond_break) + for (i = zero; i <= 1000000 && can_loop; i++) sum += i; return sum; diff --git a/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c b/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c new file mode 100644 index 000000000000..cb32b0cfc84b --- /dev/null +++ b/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ + +#include <vmlinux.h> +#include <bpf/bpf_tracing.h> +#include <bpf/bpf_helpers.h> + +#include "bpf_misc.h" +#include "cgrp_kfunc_common.h" +#include "cpumask_common.h" +#include "task_kfunc_common.h" + +char _license[] SEC("license") = "GPL"; + +/*************** + * Task kfuncs * + ***************/ + +static void task_kfunc_load_test(void) +{ + struct task_struct *current, *ref_1, *ref_2; + + current = bpf_get_current_task_btf(); + ref_1 = bpf_task_from_pid(current->pid); + if (!ref_1) + return; + + ref_2 = bpf_task_acquire(ref_1); + if (ref_2) + bpf_task_release(ref_2); + bpf_task_release(ref_1); +} + +SEC("raw_tp") +__failure __msg("calling kernel function") +int BPF_PROG(task_kfunc_raw_tp) +{ + task_kfunc_load_test(); + return 0; +} + +SEC("syscall") +__success +int BPF_PROG(task_kfunc_syscall) +{ + task_kfunc_load_test(); + return 0; +} + +/***************** + * cgroup kfuncs * + *****************/ + +static void cgrp_kfunc_load_test(void) +{ + struct cgroup *cgrp, *ref; + + cgrp = bpf_cgroup_from_id(0); + if (!cgrp) + return; + + ref = bpf_cgroup_acquire(cgrp); + if (!ref) { + bpf_cgroup_release(cgrp); + return; + } + + bpf_cgroup_release(ref); + bpf_cgroup_release(cgrp); +} + +SEC("raw_tp") +__failure __msg("calling kernel function") +int BPF_PROG(cgrp_kfunc_raw_tp) +{ + cgrp_kfunc_load_test(); + return 0; +} + +SEC("syscall") +__success +int BPF_PROG(cgrp_kfunc_syscall) +{ + cgrp_kfunc_load_test(); + return 0; +} + +/****************** + * cpumask kfuncs * + ******************/ + +static void cpumask_kfunc_load_test(void) +{ + struct bpf_cpumask *alloc, *ref; + + alloc = bpf_cpumask_create(); + if (!alloc) + return; + + ref = bpf_cpumask_acquire(alloc); + bpf_cpumask_set_cpu(0, alloc); + bpf_cpumask_test_cpu(0, (const struct cpumask *)ref); + + bpf_cpumask_release(ref); + bpf_cpumask_release(alloc); +} + +SEC("raw_tp") +__failure __msg("calling kernel function") +int BPF_PROG(cpumask_kfunc_raw_tp) +{ + cpumask_kfunc_load_test(); + return 0; +} + +SEC("syscall") +__success +int BPF_PROG(cpumask_kfunc_syscall) +{ + cpumask_kfunc_load_test(); + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/verifier_sock_addr.c b/tools/testing/selftests/bpf/progs/verifier_sock_addr.c new file mode 100644 index 000000000000..9c31448a0f52 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/verifier_sock_addr.c @@ -0,0 +1,331 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Google LLC */ + +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf_sockopt_helpers.h> +#include "bpf_misc.h" + +SEC("cgroup/recvmsg4") +__success +int recvmsg4_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/recvmsg4") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int recvmsg4_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/recvmsg6") +__success +int recvmsg6_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/recvmsg6") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int recvmsg6_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/recvmsg_unix") +__success +int recvmsg_unix_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/recvmsg_unix") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int recvmsg_unix_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/sendmsg4") +__success +int sendmsg4_good_return_code_0(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/sendmsg4") +__success +int sendmsg4_good_return_code_1(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/sendmsg4") +__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]") +int sendmsg4_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 2; +} + +SEC("cgroup/sendmsg6") +__success +int sendmsg6_good_return_code_0(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/sendmsg6") +__success +int sendmsg6_good_return_code_1(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/sendmsg6") +__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]") +int sendmsg6_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 2; +} + +SEC("cgroup/sendmsg_unix") +__success +int sendmsg_unix_good_return_code_0(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/sendmsg_unix") +__success +int sendmsg_unix_good_return_code_1(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/sendmsg_unix") +__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]") +int sendmsg_unix_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 2; +} + +SEC("cgroup/getpeername4") +__success +int getpeername4_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/getpeername4") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int getpeername4_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/getpeername6") +__success +int getpeername6_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/getpeername6") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int getpeername6_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/getpeername_unix") +__success +int getpeername_unix_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/getpeername_unix") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int getpeername_unix_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/getsockname4") +__success +int getsockname4_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/getsockname4") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int getsockname4_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/getsockname6") +__success +int getsockname6_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/getsockname6") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int getsockname6_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/getsockname_unix") +__success +int getsockname_unix_good_return_code(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/getsockname_unix") +__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]") +int getsockname_unix_unix_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/bind4") +__success +int bind4_good_return_code_0(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/bind4") +__success +int bind4_good_return_code_1(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/bind4") +__success +int bind4_good_return_code_2(struct bpf_sock_addr *ctx) +{ + return 2; +} + +SEC("cgroup/bind4") +__success +int bind4_good_return_code_3(struct bpf_sock_addr *ctx) +{ + return 3; +} + +SEC("cgroup/bind4") +__failure __msg("At program exit the register R0 has smin=4 smax=4 should have been in [0, 3]") +int bind4_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 4; +} + +SEC("cgroup/bind6") +__success +int bind6_good_return_code_0(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/bind6") +__success +int bind6_good_return_code_1(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/bind6") +__success +int bind6_good_return_code_2(struct bpf_sock_addr *ctx) +{ + return 2; +} + +SEC("cgroup/bind6") +__success +int bind6_good_return_code_3(struct bpf_sock_addr *ctx) +{ + return 3; +} + +SEC("cgroup/bind6") +__failure __msg("At program exit the register R0 has smin=4 smax=4 should have been in [0, 3]") +int bind6_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 4; +} + +SEC("cgroup/connect4") +__success +int connect4_good_return_code_0(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/connect4") +__success +int connect4_good_return_code_1(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/connect4") +__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]") +int connect4_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 2; +} + +SEC("cgroup/connect6") +__success +int connect6_good_return_code_0(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/connect6") +__success +int connect6_good_return_code_1(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/connect6") +__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]") +int connect6_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 2; +} + +SEC("cgroup/connect_unix") +__success +int connect_unix_good_return_code_0(struct bpf_sock_addr *ctx) +{ + return 0; +} + +SEC("cgroup/connect_unix") +__success +int connect_unix_good_return_code_1(struct bpf_sock_addr *ctx) +{ + return 1; +} + +SEC("cgroup/connect_unix") +__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]") +int connect_unix_bad_return_code(struct bpf_sock_addr *ctx) +{ + return 2; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/verifier_subprog_precision.c b/tools/testing/selftests/bpf/progs/verifier_subprog_precision.c index 6f5d19665cf6..4a58e0398e72 100644 --- a/tools/testing/selftests/bpf/progs/verifier_subprog_precision.c +++ b/tools/testing/selftests/bpf/progs/verifier_subprog_precision.c @@ -6,6 +6,7 @@ #include <linux/bpf.h> #include <bpf/bpf_helpers.h> #include "bpf_misc.h" +#include <../../../tools/include/linux/filter.h> #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) @@ -76,6 +77,94 @@ __naked int subprog_result_precise(void) ); } +__naked __noinline __used +static unsigned long fp_leaking_subprog() +{ + asm volatile ( + ".8byte %[r0_eq_r10_cast_s8];" + "exit;" + :: __imm_insn(r0_eq_r10_cast_s8, BPF_MOVSX64_REG(BPF_REG_0, BPF_REG_10, 8)) + ); +} + +__naked __noinline __used +static unsigned long sneaky_fp_leaking_subprog() +{ + asm volatile ( + "r1 = r10;" + ".8byte %[r0_eq_r1_cast_s8];" + "exit;" + :: __imm_insn(r0_eq_r1_cast_s8, BPF_MOVSX64_REG(BPF_REG_0, BPF_REG_1, 8)) + ); +} + +SEC("?raw_tp") +__success __log_level(2) +__msg("6: (0f) r1 += r0") +__msg("mark_precise: frame0: last_idx 6 first_idx 0 subseq_idx -1") +__msg("mark_precise: frame0: regs=r0 stack= before 5: (bf) r1 = r6") +__msg("mark_precise: frame0: regs=r0 stack= before 4: (27) r0 *= 4") +__msg("mark_precise: frame0: regs=r0 stack= before 3: (57) r0 &= 3") +__msg("mark_precise: frame0: regs=r0 stack= before 10: (95) exit") +__msg("mark_precise: frame1: regs=r0 stack= before 9: (bf) r0 = (s8)r10") +__msg("7: R0_w=scalar") +__naked int fp_precise_subprog_result(void) +{ + asm volatile ( + "call fp_leaking_subprog;" + /* use subprog's returned value (which is derived from r10=fp + * register), as index into vals array, forcing all of that to + * be known precisely + */ + "r0 &= 3;" + "r0 *= 4;" + "r1 = %[vals];" + /* force precision marking */ + "r1 += r0;" + "r0 = *(u32 *)(r1 + 0);" + "exit;" + : + : __imm_ptr(vals) + : __clobber_common + ); +} + +SEC("?raw_tp") +__success __log_level(2) +__msg("6: (0f) r1 += r0") +__msg("mark_precise: frame0: last_idx 6 first_idx 0 subseq_idx -1") +__msg("mark_precise: frame0: regs=r0 stack= before 5: (bf) r1 = r6") +__msg("mark_precise: frame0: regs=r0 stack= before 4: (27) r0 *= 4") +__msg("mark_precise: frame0: regs=r0 stack= before 3: (57) r0 &= 3") +__msg("mark_precise: frame0: regs=r0 stack= before 11: (95) exit") +__msg("mark_precise: frame1: regs=r0 stack= before 10: (bf) r0 = (s8)r1") +/* here r1 is marked precise, even though it's fp register, but that's fine + * because by the time we get out of subprogram it has to be derived from r10 + * anyways, at which point we'll break precision chain + */ +__msg("mark_precise: frame1: regs=r1 stack= before 9: (bf) r1 = r10") +__msg("7: R0_w=scalar") +__naked int sneaky_fp_precise_subprog_result(void) +{ + asm volatile ( + "call sneaky_fp_leaking_subprog;" + /* use subprog's returned value (which is derived from r10=fp + * register), as index into vals array, forcing all of that to + * be known precisely + */ + "r0 &= 3;" + "r0 *= 4;" + "r1 = %[vals];" + /* force precision marking */ + "r1 += r0;" + "r0 = *(u32 *)(r1 + 0);" + "exit;" + : + : __imm_ptr(vals) + : __clobber_common + ); +} + SEC("?raw_tp") __success __log_level(2) __msg("9: (0f) r1 += r0") diff --git a/tools/testing/selftests/bpf/progs/wq.c b/tools/testing/selftests/bpf/progs/wq.c new file mode 100644 index 000000000000..49e712acbf60 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/wq.c @@ -0,0 +1,180 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Benjamin Tissoires + */ + +#include "bpf_experimental.h" +#include <bpf/bpf_helpers.h> +#include "bpf_misc.h" +#include "../bpf_testmod/bpf_testmod_kfunc.h" + +char _license[] SEC("license") = "GPL"; + +struct hmap_elem { + int counter; + struct bpf_timer timer; /* unused */ + struct bpf_spin_lock lock; /* unused */ + struct bpf_wq work; +}; + +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __uint(max_entries, 1000); + __type(key, int); + __type(value, struct hmap_elem); +} hmap SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __uint(map_flags, BPF_F_NO_PREALLOC); + __uint(max_entries, 1000); + __type(key, int); + __type(value, struct hmap_elem); +} hmap_malloc SEC(".maps"); + +struct elem { + struct bpf_wq w; +}; + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __uint(max_entries, 2); + __type(key, int); + __type(value, struct elem); +} array SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_LRU_HASH); + __uint(max_entries, 4); + __type(key, int); + __type(value, struct elem); +} lru SEC(".maps"); + +__u32 ok; +__u32 ok_sleepable; + +static int test_elem_callback(void *map, int *key, + int (callback_fn)(void *map, int *key, struct bpf_wq *wq)) +{ + struct elem init = {}, *val; + struct bpf_wq *wq; + + if ((ok & (1 << *key) || + (ok_sleepable & (1 << *key)))) + return -22; + + if (map == &lru && + bpf_map_update_elem(map, key, &init, 0)) + return -1; + + val = bpf_map_lookup_elem(map, key); + if (!val) + return -2; + + wq = &val->w; + if (bpf_wq_init(wq, map, 0) != 0) + return -3; + + if (bpf_wq_set_callback(wq, callback_fn, 0)) + return -4; + + if (bpf_wq_start(wq, 0)) + return -5; + + return 0; +} + +static int test_hmap_elem_callback(void *map, int *key, + int (callback_fn)(void *map, int *key, struct bpf_wq *wq)) +{ + struct hmap_elem init = {}, *val; + struct bpf_wq *wq; + + if ((ok & (1 << *key) || + (ok_sleepable & (1 << *key)))) + return -22; + + if (bpf_map_update_elem(map, key, &init, 0)) + return -1; + + val = bpf_map_lookup_elem(map, key); + if (!val) + return -2; + + wq = &val->work; + if (bpf_wq_init(wq, map, 0) != 0) + return -3; + + if (bpf_wq_set_callback(wq, callback_fn, 0)) + return -4; + + if (bpf_wq_start(wq, 0)) + return -5; + + return 0; +} + +/* callback for non sleepable workqueue */ +static int wq_callback(void *map, int *key, struct bpf_wq *work) +{ + bpf_kfunc_common_test(); + ok |= (1 << *key); + return 0; +} + +/* callback for sleepable workqueue */ +static int wq_cb_sleepable(void *map, int *key, struct bpf_wq *work) +{ + bpf_kfunc_call_test_sleepable(); + ok_sleepable |= (1 << *key); + return 0; +} + +SEC("tc") +/* test that workqueues can be used from an array */ +__retval(0) +long test_call_array_sleepable(void *ctx) +{ + int key = 0; + + return test_elem_callback(&array, &key, wq_cb_sleepable); +} + +SEC("syscall") +/* Same test than above but from a sleepable context. */ +__retval(0) +long test_syscall_array_sleepable(void *ctx) +{ + int key = 1; + + return test_elem_callback(&array, &key, wq_cb_sleepable); +} + +SEC("tc") +/* test that workqueues can be used from a hashmap */ +__retval(0) +long test_call_hash_sleepable(void *ctx) +{ + int key = 2; + + return test_hmap_elem_callback(&hmap, &key, wq_callback); +} + +SEC("tc") +/* test that workqueues can be used from a hashmap with NO_PREALLOC. */ +__retval(0) +long test_call_hash_malloc_sleepable(void *ctx) +{ + int key = 3; + + return test_hmap_elem_callback(&hmap_malloc, &key, wq_callback); +} + +SEC("tc") +/* test that workqueues can be used from a LRU map */ +__retval(0) +long test_call_lru_sleepable(void *ctx) +{ + int key = 4; + + return test_elem_callback(&lru, &key, wq_callback); +} diff --git a/tools/testing/selftests/bpf/progs/wq_failures.c b/tools/testing/selftests/bpf/progs/wq_failures.c new file mode 100644 index 000000000000..4cbdb425f223 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/wq_failures.c @@ -0,0 +1,144 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Benjamin Tissoires + */ + +#include "bpf_experimental.h" +#include <bpf/bpf_helpers.h> +#include "bpf_misc.h" +#include "../bpf_testmod/bpf_testmod_kfunc.h" + +char _license[] SEC("license") = "GPL"; + +struct elem { + struct bpf_wq w; +}; + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __uint(max_entries, 2); + __type(key, int); + __type(value, struct elem); +} array SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_LRU_HASH); + __uint(max_entries, 4); + __type(key, int); + __type(value, struct elem); +} lru SEC(".maps"); + +/* callback for non sleepable workqueue */ +static int wq_callback(void *map, int *key, struct bpf_wq *work) +{ + bpf_kfunc_common_test(); + return 0; +} + +/* callback for sleepable workqueue */ +static int wq_cb_sleepable(void *map, int *key, struct bpf_wq *work) +{ + bpf_kfunc_call_test_sleepable(); + return 0; +} + +SEC("tc") +/* test that bpf_wq_init takes a map as a second argument + */ +__log_level(2) +__flag(BPF_F_TEST_STATE_FREQ) +__failure +__msg(": (85) call bpf_wq_init#") /* anchor message */ +__msg("pointer in R2 isn't map pointer") +long test_wq_init_nomap(void *ctx) +{ + struct bpf_wq *wq; + struct elem *val; + int key = 0; + + val = bpf_map_lookup_elem(&array, &key); + if (!val) + return -1; + + wq = &val->w; + if (bpf_wq_init(wq, &key, 0) != 0) + return -3; + + return 0; +} + +SEC("tc") +/* test that the workqueue is part of the map in bpf_wq_init + */ +__log_level(2) +__flag(BPF_F_TEST_STATE_FREQ) +__failure +__msg(": (85) call bpf_wq_init#") /* anchor message */ +__msg("workqueue pointer in R1 map_uid=0 doesn't match map pointer in R2 map_uid=0") +long test_wq_init_wrong_map(void *ctx) +{ + struct bpf_wq *wq; + struct elem *val; + int key = 0; + + val = bpf_map_lookup_elem(&array, &key); + if (!val) + return -1; + + wq = &val->w; + if (bpf_wq_init(wq, &lru, 0) != 0) + return -3; + + return 0; +} + +SEC("?tc") +__log_level(2) +__failure +/* check that the first argument of bpf_wq_set_callback() + * is a correct bpf_wq pointer. + */ +__msg(": (85) call bpf_wq_set_callback_impl#") /* anchor message */ +__msg("arg#0 doesn't point to a map value") +long test_wrong_wq_pointer(void *ctx) +{ + int key = 0; + struct bpf_wq *wq; + + wq = bpf_map_lookup_elem(&array, &key); + if (!wq) + return 1; + + if (bpf_wq_init(wq, &array, 0)) + return 2; + + if (bpf_wq_set_callback((void *)&wq, wq_callback, 0)) + return 3; + + return -22; +} + +SEC("?tc") +__log_level(2) +__failure +/* check that the first argument of bpf_wq_set_callback() + * is a correct bpf_wq pointer. + */ +__msg(": (85) call bpf_wq_set_callback_impl#") /* anchor message */ +__msg("off 1 doesn't point to 'struct bpf_wq' that is at 0") +long test_wrong_wq_pointer_offset(void *ctx) +{ + int key = 0; + struct bpf_wq *wq; + + wq = bpf_map_lookup_elem(&array, &key); + if (!wq) + return 1; + + if (bpf_wq_init(wq, &array, 0)) + return 2; + + if (bpf_wq_set_callback((void *)wq + 1, wq_cb_sleepable, 0)) + return 3; + + return -22; +} diff --git a/tools/testing/selftests/bpf/test_cpp.cpp b/tools/testing/selftests/bpf/test_cpp.cpp index f4936834f76f..dde0bb16e782 100644 --- a/tools/testing/selftests/bpf/test_cpp.cpp +++ b/tools/testing/selftests/bpf/test_cpp.cpp @@ -7,6 +7,7 @@ #include <bpf/bpf.h> #include <bpf/btf.h> #include "test_core_extern.skel.h" +#include "struct_ops_module.skel.h" template <typename T> class Skeleton { @@ -98,6 +99,7 @@ int main(int argc, char *argv[]) { struct btf_dump_opts opts = { }; struct test_core_extern *skel; + struct struct_ops_module *skel2; struct btf *btf; int fd; @@ -118,6 +120,9 @@ int main(int argc, char *argv[]) skel = test_core_extern__open_and_load(); test_core_extern__destroy(skel); + skel2 = struct_ops_module__open_and_load(); + struct_ops_module__destroy(skel2); + fd = bpf_enable_stats(BPF_STATS_RUN_TIME); if (fd < 0) std::cout << "FAILED to enable stats: " << fd << std::endl; diff --git a/tools/testing/selftests/bpf/test_offload.py b/tools/testing/selftests/bpf/test_offload.py deleted file mode 100755 index 6157f884d091..000000000000 --- a/tools/testing/selftests/bpf/test_offload.py +++ /dev/null @@ -1,1405 +0,0 @@ -#!/usr/bin/env python3 - -# Copyright (C) 2017 Netronome Systems, Inc. -# Copyright (c) 2019 Mellanox Technologies. All rights reserved -# -# This software is licensed under the GNU General License Version 2, -# June 1991 as shown in the file COPYING in the top-level directory of this -# source tree. -# -# THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" -# WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, -# BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS -# FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE -# OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME -# THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. - -from datetime import datetime -import argparse -import errno -import json -import os -import pprint -import random -import re -import stat -import string -import struct -import subprocess -import time -import traceback - -logfile = None -log_level = 1 -skip_extack = False -bpf_test_dir = os.path.dirname(os.path.realpath(__file__)) -pp = pprint.PrettyPrinter() -devs = [] # devices we created for clean up -files = [] # files to be removed -netns = [] # net namespaces to be removed - -def log_get_sec(level=0): - return "*" * (log_level + level) - -def log_level_inc(add=1): - global log_level - log_level += add - -def log_level_dec(sub=1): - global log_level - log_level -= sub - -def log_level_set(level): - global log_level - log_level = level - -def log(header, data, level=None): - """ - Output to an optional log. - """ - if logfile is None: - return - if level is not None: - log_level_set(level) - - if not isinstance(data, str): - data = pp.pformat(data) - - if len(header): - logfile.write("\n" + log_get_sec() + " ") - logfile.write(header) - if len(header) and len(data.strip()): - logfile.write("\n") - logfile.write(data) - -def skip(cond, msg): - if not cond: - return - print("SKIP: " + msg) - log("SKIP: " + msg, "", level=1) - os.sys.exit(0) - -def fail(cond, msg): - if not cond: - return - print("FAIL: " + msg) - tb = "".join(traceback.extract_stack().format()) - print(tb) - log("FAIL: " + msg, tb, level=1) - os.sys.exit(1) - -def start_test(msg): - log(msg, "", level=1) - log_level_inc() - print(msg) - -def cmd(cmd, shell=True, include_stderr=False, background=False, fail=True): - """ - Run a command in subprocess and return tuple of (retval, stdout); - optionally return stderr as well as third value. - """ - proc = subprocess.Popen(cmd, shell=shell, stdout=subprocess.PIPE, - stderr=subprocess.PIPE) - if background: - msg = "%s START: %s" % (log_get_sec(1), - datetime.now().strftime("%H:%M:%S.%f")) - log("BKG " + proc.args, msg) - return proc - - return cmd_result(proc, include_stderr=include_stderr, fail=fail) - -def cmd_result(proc, include_stderr=False, fail=False): - stdout, stderr = proc.communicate() - stdout = stdout.decode("utf-8") - stderr = stderr.decode("utf-8") - proc.stdout.close() - proc.stderr.close() - - stderr = "\n" + stderr - if stderr[-1] == "\n": - stderr = stderr[:-1] - - sec = log_get_sec(1) - log("CMD " + proc.args, - "RETCODE: %d\n%s STDOUT:\n%s%s STDERR:%s\n%s END: %s" % - (proc.returncode, sec, stdout, sec, stderr, - sec, datetime.now().strftime("%H:%M:%S.%f"))) - - if proc.returncode != 0 and fail: - if len(stderr) > 0 and stderr[-1] == "\n": - stderr = stderr[:-1] - raise Exception("Command failed: %s\n%s" % (proc.args, stderr)) - - if include_stderr: - return proc.returncode, stdout, stderr - else: - return proc.returncode, stdout - -def rm(f): - cmd("rm -f %s" % (f)) - if f in files: - files.remove(f) - -def tool(name, args, flags, JSON=True, ns="", fail=True, include_stderr=False): - params = "" - if JSON: - params += "%s " % (flags["json"]) - - if ns != "": - ns = "ip netns exec %s " % (ns) - - if include_stderr: - ret, stdout, stderr = cmd(ns + name + " " + params + args, - fail=fail, include_stderr=True) - else: - ret, stdout = cmd(ns + name + " " + params + args, - fail=fail, include_stderr=False) - - if JSON and len(stdout.strip()) != 0: - out = json.loads(stdout) - else: - out = stdout - - if include_stderr: - return ret, out, stderr - else: - return ret, out - -def bpftool(args, JSON=True, ns="", fail=True, include_stderr=False): - return tool("bpftool", args, {"json":"-p"}, JSON=JSON, ns=ns, - fail=fail, include_stderr=include_stderr) - -def bpftool_prog_list(expected=None, ns="", exclude_orphaned=True): - _, progs = bpftool("prog show", JSON=True, ns=ns, fail=True) - # Remove the base progs - for p in base_progs: - if p in progs: - progs.remove(p) - if exclude_orphaned: - progs = [ p for p in progs if not p['orphaned'] ] - if expected is not None: - if len(progs) != expected: - fail(True, "%d BPF programs loaded, expected %d" % - (len(progs), expected)) - return progs - -def bpftool_map_list(expected=None, ns=""): - _, maps = bpftool("map show", JSON=True, ns=ns, fail=True) - # Remove the base maps - maps = [m for m in maps if m not in base_maps and m.get('name') and m.get('name') not in base_map_names] - if expected is not None: - if len(maps) != expected: - fail(True, "%d BPF maps loaded, expected %d" % - (len(maps), expected)) - return maps - -def bpftool_prog_list_wait(expected=0, n_retry=20): - for i in range(n_retry): - nprogs = len(bpftool_prog_list()) - if nprogs == expected: - return - time.sleep(0.05) - raise Exception("Time out waiting for program counts to stabilize want %d, have %d" % (expected, nprogs)) - -def bpftool_map_list_wait(expected=0, n_retry=20): - for i in range(n_retry): - nmaps = len(bpftool_map_list()) - if nmaps == expected: - return - time.sleep(0.05) - raise Exception("Time out waiting for map counts to stabilize want %d, have %d" % (expected, nmaps)) - -def bpftool_prog_load(sample, file_name, maps=[], prog_type="xdp", dev=None, - fail=True, include_stderr=False): - args = "prog load %s %s" % (os.path.join(bpf_test_dir, sample), file_name) - if prog_type is not None: - args += " type " + prog_type - if dev is not None: - args += " dev " + dev - if len(maps): - args += " map " + " map ".join(maps) - - res = bpftool(args, fail=fail, include_stderr=include_stderr) - if res[0] == 0: - files.append(file_name) - return res - -def ip(args, force=False, JSON=True, ns="", fail=True, include_stderr=False): - if force: - args = "-force " + args - return tool("ip", args, {"json":"-j"}, JSON=JSON, ns=ns, - fail=fail, include_stderr=include_stderr) - -def tc(args, JSON=True, ns="", fail=True, include_stderr=False): - return tool("tc", args, {"json":"-p"}, JSON=JSON, ns=ns, - fail=fail, include_stderr=include_stderr) - -def ethtool(dev, opt, args, fail=True): - return cmd("ethtool %s %s %s" % (opt, dev["ifname"], args), fail=fail) - -def bpf_obj(name, sec=".text", path=bpf_test_dir,): - return "obj %s sec %s" % (os.path.join(path, name), sec) - -def bpf_pinned(name): - return "pinned %s" % (name) - -def bpf_bytecode(bytecode): - return "bytecode \"%s\"" % (bytecode) - -def mknetns(n_retry=10): - for i in range(n_retry): - name = ''.join([random.choice(string.ascii_letters) for i in range(8)]) - ret, _ = ip("netns add %s" % (name), fail=False) - if ret == 0: - netns.append(name) - return name - return None - -def int2str(fmt, val): - ret = [] - for b in struct.pack(fmt, val): - ret.append(int(b)) - return " ".join(map(lambda x: str(x), ret)) - -def str2int(strtab): - inttab = [] - for i in strtab: - inttab.append(int(i, 16)) - ba = bytearray(inttab) - if len(strtab) == 4: - fmt = "I" - elif len(strtab) == 8: - fmt = "Q" - else: - raise Exception("String array of len %d can't be unpacked to an int" % - (len(strtab))) - return struct.unpack(fmt, ba)[0] - -class DebugfsDir: - """ - Class for accessing DebugFS directories as a dictionary. - """ - - def __init__(self, path): - self.path = path - self._dict = self._debugfs_dir_read(path) - - def __len__(self): - return len(self._dict.keys()) - - def __getitem__(self, key): - if type(key) is int: - key = list(self._dict.keys())[key] - return self._dict[key] - - def __setitem__(self, key, value): - log("DebugFS set %s = %s" % (key, value), "") - log_level_inc() - - cmd("echo '%s' > %s/%s" % (value, self.path, key)) - log_level_dec() - - _, out = cmd('cat %s/%s' % (self.path, key)) - self._dict[key] = out.strip() - - def _debugfs_dir_read(self, path): - dfs = {} - - log("DebugFS state for %s" % (path), "") - log_level_inc(add=2) - - _, out = cmd('ls ' + path) - for f in out.split(): - if f == "ports": - continue - - p = os.path.join(path, f) - if not os.stat(p).st_mode & stat.S_IRUSR: - continue - - if os.path.isfile(p): - # We need to init trap_flow_action_cookie before read it - if f == "trap_flow_action_cookie": - cmd('echo deadbeef > %s/%s' % (path, f)) - _, out = cmd('cat %s/%s' % (path, f)) - dfs[f] = out.strip() - elif os.path.isdir(p): - dfs[f] = DebugfsDir(p) - else: - raise Exception("%s is neither file nor directory" % (p)) - - log_level_dec() - log("DebugFS state", dfs) - log_level_dec() - - return dfs - -class NetdevSimDev: - """ - Class for netdevsim bus device and its attributes. - """ - @staticmethod - def ctrl_write(path, val): - fullpath = os.path.join("/sys/bus/netdevsim/", path) - try: - with open(fullpath, "w") as f: - f.write(val) - except OSError as e: - log("WRITE %s: %r" % (fullpath, val), -e.errno) - raise e - log("WRITE %s: %r" % (fullpath, val), 0) - - def __init__(self, port_count=1): - addr = 0 - while True: - try: - self.ctrl_write("new_device", "%u %u" % (addr, port_count)) - except OSError as e: - if e.errno == errno.ENOSPC: - addr += 1 - continue - raise e - break - self.addr = addr - - # As probe of netdevsim device might happen from a workqueue, - # so wait here until all netdevs appear. - self.wait_for_netdevs(port_count) - - ret, out = cmd("udevadm settle", fail=False) - if ret: - raise Exception("udevadm settle failed") - ifnames = self.get_ifnames() - - devs.append(self) - self.dfs_dir = "/sys/kernel/debug/netdevsim/netdevsim%u/" % addr - - self.nsims = [] - for port_index in range(port_count): - self.nsims.append(NetdevSim(self, port_index, ifnames[port_index])) - - def get_ifnames(self): - ifnames = [] - listdir = os.listdir("/sys/bus/netdevsim/devices/netdevsim%u/net/" % self.addr) - for ifname in listdir: - ifnames.append(ifname) - ifnames.sort() - return ifnames - - def wait_for_netdevs(self, port_count): - timeout = 5 - timeout_start = time.time() - - while True: - try: - ifnames = self.get_ifnames() - except FileNotFoundError as e: - ifnames = [] - if len(ifnames) == port_count: - break - if time.time() < timeout_start + timeout: - continue - raise Exception("netdevices did not appear within timeout") - - def dfs_num_bound_progs(self): - path = os.path.join(self.dfs_dir, "bpf_bound_progs") - _, progs = cmd('ls %s' % (path)) - return len(progs.split()) - - def dfs_get_bound_progs(self, expected): - progs = DebugfsDir(os.path.join(self.dfs_dir, "bpf_bound_progs")) - if expected is not None: - if len(progs) != expected: - fail(True, "%d BPF programs bound, expected %d" % - (len(progs), expected)) - return progs - - def remove(self): - self.ctrl_write("del_device", "%u" % (self.addr, )) - devs.remove(self) - - def remove_nsim(self, nsim): - self.nsims.remove(nsim) - self.ctrl_write("devices/netdevsim%u/del_port" % (self.addr, ), - "%u" % (nsim.port_index, )) - -class NetdevSim: - """ - Class for netdevsim netdevice and its attributes. - """ - - def __init__(self, nsimdev, port_index, ifname): - # In case udev renamed the netdev to according to new schema, - # check if the name matches the port_index. - nsimnamere = re.compile("eni\d+np(\d+)") - match = nsimnamere.match(ifname) - if match and int(match.groups()[0]) != port_index + 1: - raise Exception("netdevice name mismatches the expected one") - - self.nsimdev = nsimdev - self.port_index = port_index - self.ns = "" - self.dfs_dir = "%s/ports/%u/" % (nsimdev.dfs_dir, port_index) - self.dfs_refresh() - _, [self.dev] = ip("link show dev %s" % ifname) - - def __getitem__(self, key): - return self.dev[key] - - def remove(self): - self.nsimdev.remove_nsim(self) - - def dfs_refresh(self): - self.dfs = DebugfsDir(self.dfs_dir) - return self.dfs - - def dfs_read(self, f): - path = os.path.join(self.dfs_dir, f) - _, data = cmd('cat %s' % (path)) - return data.strip() - - def wait_for_flush(self, bound=0, total=0, n_retry=20): - for i in range(n_retry): - nbound = self.nsimdev.dfs_num_bound_progs() - nprogs = len(bpftool_prog_list()) - if nbound == bound and nprogs == total: - return - time.sleep(0.05) - raise Exception("Time out waiting for program counts to stabilize want %d/%d, have %d bound, %d loaded" % (bound, total, nbound, nprogs)) - - def set_ns(self, ns): - name = "1" if ns == "" else ns - ip("link set dev %s netns %s" % (self.dev["ifname"], name), ns=self.ns) - self.ns = ns - - def set_mtu(self, mtu, fail=True): - return ip("link set dev %s mtu %d" % (self.dev["ifname"], mtu), - fail=fail) - - def set_xdp(self, bpf, mode, force=False, JSON=True, verbose=False, - fail=True, include_stderr=False): - if verbose: - bpf += " verbose" - return ip("link set dev %s xdp%s %s" % (self.dev["ifname"], mode, bpf), - force=force, JSON=JSON, - fail=fail, include_stderr=include_stderr) - - def unset_xdp(self, mode, force=False, JSON=True, - fail=True, include_stderr=False): - return ip("link set dev %s xdp%s off" % (self.dev["ifname"], mode), - force=force, JSON=JSON, - fail=fail, include_stderr=include_stderr) - - def ip_link_show(self, xdp): - _, link = ip("link show dev %s" % (self['ifname'])) - if len(link) > 1: - raise Exception("Multiple objects on ip link show") - if len(link) < 1: - return {} - fail(xdp != "xdp" in link, - "XDP program not reporting in iplink (reported %s, expected %s)" % - ("xdp" in link, xdp)) - return link[0] - - def tc_add_ingress(self): - tc("qdisc add dev %s ingress" % (self['ifname'])) - - def tc_del_ingress(self): - tc("qdisc del dev %s ingress" % (self['ifname'])) - - def tc_flush_filters(self, bound=0, total=0): - self.tc_del_ingress() - self.tc_add_ingress() - self.wait_for_flush(bound=bound, total=total) - - def tc_show_ingress(self, expected=None): - # No JSON support, oh well... - flags = ["skip_sw", "skip_hw", "in_hw"] - named = ["protocol", "pref", "chain", "handle", "id", "tag"] - - args = "-s filter show dev %s ingress" % (self['ifname']) - _, out = tc(args, JSON=False) - - filters = [] - lines = out.split('\n') - for line in lines: - words = line.split() - if "handle" not in words: - continue - fltr = {} - for flag in flags: - fltr[flag] = flag in words - for name in named: - try: - idx = words.index(name) - fltr[name] = words[idx + 1] - except ValueError: - pass - filters.append(fltr) - - if expected is not None: - fail(len(filters) != expected, - "%d ingress filters loaded, expected %d" % - (len(filters), expected)) - return filters - - def cls_filter_op(self, op, qdisc="ingress", prio=None, handle=None, - chain=None, cls="", params="", - fail=True, include_stderr=False): - spec = "" - if prio is not None: - spec += " prio %d" % (prio) - if handle: - spec += " handle %s" % (handle) - if chain is not None: - spec += " chain %d" % (chain) - - return tc("filter {op} dev {dev} {qdisc} {spec} {cls} {params}"\ - .format(op=op, dev=self['ifname'], qdisc=qdisc, spec=spec, - cls=cls, params=params), - fail=fail, include_stderr=include_stderr) - - def cls_bpf_add_filter(self, bpf, op="add", prio=None, handle=None, - chain=None, da=False, verbose=False, - skip_sw=False, skip_hw=False, - fail=True, include_stderr=False): - cls = "bpf " + bpf - - params = "" - if da: - params += " da" - if verbose: - params += " verbose" - if skip_sw: - params += " skip_sw" - if skip_hw: - params += " skip_hw" - - return self.cls_filter_op(op=op, prio=prio, handle=handle, cls=cls, - chain=chain, params=params, - fail=fail, include_stderr=include_stderr) - - def set_ethtool_tc_offloads(self, enable, fail=True): - args = "hw-tc-offload %s" % ("on" if enable else "off") - return ethtool(self, "-K", args, fail=fail) - -################################################################################ -def clean_up(): - global files, netns, devs - - for dev in devs: - dev.remove() - for f in files: - cmd("rm -f %s" % (f)) - for ns in netns: - cmd("ip netns delete %s" % (ns)) - files = [] - netns = [] - -def pin_prog(file_name, idx=0): - progs = bpftool_prog_list(expected=(idx + 1)) - prog = progs[idx] - bpftool("prog pin id %d %s" % (prog["id"], file_name)) - files.append(file_name) - - return file_name, bpf_pinned(file_name) - -def pin_map(file_name, idx=0, expected=1): - maps = bpftool_map_list(expected=expected) - m = maps[idx] - bpftool("map pin id %d %s" % (m["id"], file_name)) - files.append(file_name) - - return file_name, bpf_pinned(file_name) - -def check_dev_info_removed(prog_file=None, map_file=None): - bpftool_prog_list(expected=0) - bpftool_prog_list(expected=1, exclude_orphaned=False) - ret, err = bpftool("prog show pin %s" % (prog_file), fail=False) - fail(ret != 0, "failed to show prog with removed device") - - bpftool_map_list(expected=0) - ret, err = bpftool("map show pin %s" % (map_file), fail=False) - fail(ret == 0, "Showing map with removed device did not fail") - fail(err["error"].find("No such device") == -1, - "Showing map with removed device expected ENODEV, error is %s" % - (err["error"])) - -def check_dev_info(other_ns, ns, prog_file=None, map_file=None, removed=False): - progs = bpftool_prog_list(expected=1, ns=ns) - prog = progs[0] - - fail("dev" not in prog.keys(), "Device parameters not reported") - dev = prog["dev"] - fail("ifindex" not in dev.keys(), "Device parameters not reported") - fail("ns_dev" not in dev.keys(), "Device parameters not reported") - fail("ns_inode" not in dev.keys(), "Device parameters not reported") - - if not other_ns: - fail("ifname" not in dev.keys(), "Ifname not reported") - fail(dev["ifname"] != sim["ifname"], - "Ifname incorrect %s vs %s" % (dev["ifname"], sim["ifname"])) - else: - fail("ifname" in dev.keys(), "Ifname is reported for other ns") - - maps = bpftool_map_list(expected=2, ns=ns) - for m in maps: - fail("dev" not in m.keys(), "Device parameters not reported") - fail(dev != m["dev"], "Map's device different than program's") - -def check_extack(output, reference, args): - if skip_extack: - return - lines = output.split("\n") - comp = len(lines) >= 2 and lines[1] == 'Error: ' + reference - fail(not comp, "Missing or incorrect netlink extack message") - -def check_extack_nsim(output, reference, args): - check_extack(output, "netdevsim: " + reference, args) - -def check_no_extack(res, needle): - fail((res[1] + res[2]).count(needle) or (res[1] + res[2]).count("Warning:"), - "Found '%s' in command output, leaky extack?" % (needle)) - -def check_verifier_log(output, reference): - lines = output.split("\n") - for l in reversed(lines): - if l == reference: - return - fail(True, "Missing or incorrect message from netdevsim in verifier log") - -def check_multi_basic(two_xdps): - fail(two_xdps["mode"] != 4, "Bad mode reported with multiple programs") - fail("prog" in two_xdps, "Base program reported in multi program mode") - fail(len(two_xdps["attached"]) != 2, - "Wrong attached program count with two programs") - fail(two_xdps["attached"][0]["prog"]["id"] == - two_xdps["attached"][1]["prog"]["id"], - "Offloaded and other programs have the same id") - -def test_spurios_extack(sim, obj, skip_hw, needle): - res = sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_hw=skip_hw, - include_stderr=True) - check_no_extack(res, needle) - res = sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, - skip_hw=skip_hw, include_stderr=True) - check_no_extack(res, needle) - res = sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf", - include_stderr=True) - check_no_extack(res, needle) - -def test_multi_prog(simdev, sim, obj, modename, modeid): - start_test("Test multi-attachment XDP - %s + offload..." % - (modename or "default", )) - sim.set_xdp(obj, "offload") - xdp = sim.ip_link_show(xdp=True)["xdp"] - offloaded = sim.dfs_read("bpf_offloaded_id") - fail("prog" not in xdp, "Base program not reported in single program mode") - fail(len(xdp["attached"]) != 1, - "Wrong attached program count with one program") - - sim.set_xdp(obj, modename) - two_xdps = sim.ip_link_show(xdp=True)["xdp"] - - fail(xdp["attached"][0] not in two_xdps["attached"], - "Offload program not reported after other activated") - check_multi_basic(two_xdps) - - offloaded2 = sim.dfs_read("bpf_offloaded_id") - fail(offloaded != offloaded2, - "Offload ID changed after loading other program") - - start_test("Test multi-attachment XDP - replace...") - ret, _, err = sim.set_xdp(obj, "offload", fail=False, include_stderr=True) - fail(ret == 0, "Replaced one of programs without -force") - check_extack(err, "XDP program already attached.", args) - - start_test("Test multi-attachment XDP - remove without mode...") - ret, _, err = sim.unset_xdp("", force=True, - fail=False, include_stderr=True) - fail(ret == 0, "Removed program without a mode flag") - check_extack(err, "More than one program loaded, unset mode is ambiguous.", args) - - sim.unset_xdp("offload") - xdp = sim.ip_link_show(xdp=True)["xdp"] - offloaded = sim.dfs_read("bpf_offloaded_id") - - fail(xdp["mode"] != modeid, "Bad mode reported after multiple programs") - fail("prog" not in xdp, - "Base program not reported after multi program mode") - fail(xdp["attached"][0] not in two_xdps["attached"], - "Offload program not reported after other activated") - fail(len(xdp["attached"]) != 1, - "Wrong attached program count with remaining programs") - fail(offloaded != "0", "Offload ID reported with only other program left") - - start_test("Test multi-attachment XDP - reattach...") - sim.set_xdp(obj, "offload") - two_xdps = sim.ip_link_show(xdp=True)["xdp"] - - fail(xdp["attached"][0] not in two_xdps["attached"], - "Other program not reported after offload activated") - check_multi_basic(two_xdps) - - start_test("Test multi-attachment XDP - device remove...") - simdev.remove() - - simdev = NetdevSimDev() - sim, = simdev.nsims - sim.set_ethtool_tc_offloads(True) - return [simdev, sim] - -# Parse command line -parser = argparse.ArgumentParser() -parser.add_argument("--log", help="output verbose log to given file") -args = parser.parse_args() -if args.log: - logfile = open(args.log, 'w+') - logfile.write("# -*-Org-*-") - -log("Prepare...", "", level=1) -log_level_inc() - -# Check permissions -skip(os.getuid() != 0, "test must be run as root") - -# Check tools -ret, progs = bpftool("prog", fail=False) -skip(ret != 0, "bpftool not installed") -base_progs = progs -_, base_maps = bpftool("map") -base_map_names = [ - 'pid_iter.rodata', # created on each bpftool invocation - 'libbpf_det_bind', # created on each bpftool invocation -] - -# Check netdevsim -if not os.path.isdir("/sys/bus/netdevsim/"): - ret, out = cmd("modprobe netdevsim", fail=False) - skip(ret != 0, "netdevsim module could not be loaded") - -# Check debugfs -_, out = cmd("mount") -if out.find("/sys/kernel/debug type debugfs") == -1: - cmd("mount -t debugfs none /sys/kernel/debug") - -# Check samples are compiled -samples = ["sample_ret0.bpf.o", "sample_map_ret0.bpf.o"] -for s in samples: - ret, out = cmd("ls %s/%s" % (bpf_test_dir, s), fail=False) - skip(ret != 0, "sample %s/%s not found, please compile it" % - (bpf_test_dir, s)) - -# Check if iproute2 is built with libmnl (needed by extack support) -_, _, err = cmd("tc qdisc delete dev lo handle 0", - fail=False, include_stderr=True) -if err.find("Error: Failed to find qdisc with specified handle.") == -1: - print("Warning: no extack message in iproute2 output, libmnl missing?") - log("Warning: no extack message in iproute2 output, libmnl missing?", "") - skip_extack = True - -# Check if net namespaces seem to work -ns = mknetns() -skip(ns is None, "Could not create a net namespace") -cmd("ip netns delete %s" % (ns)) -netns = [] - -try: - obj = bpf_obj("sample_ret0.bpf.o") - bytecode = bpf_bytecode("1,6 0 0 4294967295,") - - start_test("Test destruction of generic XDP...") - simdev = NetdevSimDev() - sim, = simdev.nsims - sim.set_xdp(obj, "generic") - simdev.remove() - bpftool_prog_list_wait(expected=0) - - simdev = NetdevSimDev() - sim, = simdev.nsims - sim.tc_add_ingress() - - start_test("Test TC non-offloaded...") - ret, _ = sim.cls_bpf_add_filter(obj, skip_hw=True, fail=False) - fail(ret != 0, "Software TC filter did not load") - - start_test("Test TC non-offloaded isn't getting bound...") - ret, _ = sim.cls_bpf_add_filter(obj, fail=False) - fail(ret != 0, "Software TC filter did not load") - simdev.dfs_get_bound_progs(expected=0) - - sim.tc_flush_filters() - - start_test("Test TC offloads are off by default...") - ret, _, err = sim.cls_bpf_add_filter(obj, skip_sw=True, - fail=False, include_stderr=True) - fail(ret == 0, "TC filter loaded without enabling TC offloads") - check_extack(err, "TC offload is disabled on net device.", args) - sim.wait_for_flush() - - sim.set_ethtool_tc_offloads(True) - sim.dfs["bpf_tc_non_bound_accept"] = "Y" - - start_test("Test TC offload by default...") - ret, _ = sim.cls_bpf_add_filter(obj, fail=False) - fail(ret != 0, "Software TC filter did not load") - simdev.dfs_get_bound_progs(expected=0) - ingress = sim.tc_show_ingress(expected=1) - fltr = ingress[0] - fail(not fltr["in_hw"], "Filter not offloaded by default") - - sim.tc_flush_filters() - - start_test("Test TC cBPF bytcode tries offload by default...") - ret, _ = sim.cls_bpf_add_filter(bytecode, fail=False) - fail(ret != 0, "Software TC filter did not load") - simdev.dfs_get_bound_progs(expected=0) - ingress = sim.tc_show_ingress(expected=1) - fltr = ingress[0] - fail(not fltr["in_hw"], "Bytecode not offloaded by default") - - sim.tc_flush_filters() - sim.dfs["bpf_tc_non_bound_accept"] = "N" - - start_test("Test TC cBPF unbound bytecode doesn't offload...") - ret, _, err = sim.cls_bpf_add_filter(bytecode, skip_sw=True, - fail=False, include_stderr=True) - fail(ret == 0, "TC bytecode loaded for offload") - check_extack_nsim(err, "netdevsim configured to reject unbound programs.", - args) - sim.wait_for_flush() - - start_test("Test non-0 chain offload...") - ret, _, err = sim.cls_bpf_add_filter(obj, chain=1, prio=1, handle=1, - skip_sw=True, - fail=False, include_stderr=True) - fail(ret == 0, "Offloaded a filter to chain other than 0") - check_extack(err, "Driver supports only offload of chain 0.", args) - sim.tc_flush_filters() - - start_test("Test TC replace...") - sim.cls_bpf_add_filter(obj, prio=1, handle=1) - sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1) - sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") - - sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_sw=True) - sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, skip_sw=True) - sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") - - sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_hw=True) - sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, skip_hw=True) - sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") - - start_test("Test TC replace bad flags...") - for i in range(3): - for j in range(3): - ret, _ = sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, - skip_sw=(j == 1), skip_hw=(j == 2), - fail=False) - fail(bool(ret) != bool(j), - "Software TC incorrect load in replace test, iteration %d" % - (j)) - sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf") - - start_test("Test spurious extack from the driver...") - test_spurios_extack(sim, obj, False, "netdevsim") - test_spurios_extack(sim, obj, True, "netdevsim") - - sim.set_ethtool_tc_offloads(False) - - test_spurios_extack(sim, obj, False, "TC offload is disabled") - test_spurios_extack(sim, obj, True, "TC offload is disabled") - - sim.set_ethtool_tc_offloads(True) - - sim.tc_flush_filters() - - start_test("Test TC offloads failure...") - sim.dfs["dev/bpf_bind_verifier_accept"] = 0 - ret, _, err = sim.cls_bpf_add_filter(obj, verbose=True, skip_sw=True, - fail=False, include_stderr=True) - fail(ret == 0, "TC filter did not reject with TC offloads enabled") - check_verifier_log(err, "[netdevsim] Hello from netdevsim!") - sim.dfs["dev/bpf_bind_verifier_accept"] = 1 - - start_test("Test TC offloads work...") - ret, _, err = sim.cls_bpf_add_filter(obj, verbose=True, skip_sw=True, - fail=False, include_stderr=True) - fail(ret != 0, "TC filter did not load with TC offloads enabled") - - start_test("Test TC offload basics...") - dfs = simdev.dfs_get_bound_progs(expected=1) - progs = bpftool_prog_list(expected=1) - ingress = sim.tc_show_ingress(expected=1) - - dprog = dfs[0] - prog = progs[0] - fltr = ingress[0] - fail(fltr["skip_hw"], "TC does reports 'skip_hw' on offloaded filter") - fail(not fltr["in_hw"], "TC does not report 'in_hw' for offloaded filter") - fail(not fltr["skip_sw"], "TC does not report 'skip_sw' back") - - start_test("Test TC offload is device-bound...") - fail(str(prog["id"]) != fltr["id"], "Program IDs don't match") - fail(prog["tag"] != fltr["tag"], "Program tags don't match") - fail(fltr["id"] != dprog["id"], "Program IDs don't match") - fail(dprog["state"] != "xlated", "Offloaded program state not translated") - fail(dprog["loaded"] != "Y", "Offloaded program is not loaded") - - start_test("Test disabling TC offloads is rejected while filters installed...") - ret, _ = sim.set_ethtool_tc_offloads(False, fail=False) - fail(ret == 0, "Driver should refuse to disable TC offloads with filters installed...") - sim.set_ethtool_tc_offloads(True) - - start_test("Test qdisc removal frees things...") - sim.tc_flush_filters() - sim.tc_show_ingress(expected=0) - - start_test("Test disabling TC offloads is OK without filters...") - ret, _ = sim.set_ethtool_tc_offloads(False, fail=False) - fail(ret != 0, - "Driver refused to disable TC offloads without filters installed...") - - sim.set_ethtool_tc_offloads(True) - - start_test("Test destroying device gets rid of TC filters...") - sim.cls_bpf_add_filter(obj, skip_sw=True) - simdev.remove() - bpftool_prog_list_wait(expected=0) - - simdev = NetdevSimDev() - sim, = simdev.nsims - sim.set_ethtool_tc_offloads(True) - - start_test("Test destroying device gets rid of XDP...") - sim.set_xdp(obj, "offload") - simdev.remove() - bpftool_prog_list_wait(expected=0) - - simdev = NetdevSimDev() - sim, = simdev.nsims - sim.set_ethtool_tc_offloads(True) - - start_test("Test XDP prog reporting...") - sim.set_xdp(obj, "drv") - ipl = sim.ip_link_show(xdp=True) - progs = bpftool_prog_list(expected=1) - fail(ipl["xdp"]["prog"]["id"] != progs[0]["id"], - "Loaded program has wrong ID") - - start_test("Test XDP prog replace without force...") - ret, _ = sim.set_xdp(obj, "drv", fail=False) - fail(ret == 0, "Replaced XDP program without -force") - sim.wait_for_flush(total=1) - - start_test("Test XDP prog replace with force...") - ret, _ = sim.set_xdp(obj, "drv", force=True, fail=False) - fail(ret != 0, "Could not replace XDP program with -force") - bpftool_prog_list_wait(expected=1) - ipl = sim.ip_link_show(xdp=True) - progs = bpftool_prog_list(expected=1) - fail(ipl["xdp"]["prog"]["id"] != progs[0]["id"], - "Loaded program has wrong ID") - fail("dev" in progs[0].keys(), - "Device parameters reported for non-offloaded program") - - start_test("Test XDP prog replace with bad flags...") - ret, _, err = sim.set_xdp(obj, "generic", force=True, - fail=False, include_stderr=True) - fail(ret == 0, "Replaced XDP program with a program in different mode") - check_extack(err, - "Native and generic XDP can't be active at the same time.", - args) - - start_test("Test MTU restrictions...") - ret, _ = sim.set_mtu(9000, fail=False) - fail(ret == 0, - "Driver should refuse to increase MTU to 9000 with XDP loaded...") - sim.unset_xdp("drv") - bpftool_prog_list_wait(expected=0) - sim.set_mtu(9000) - ret, _, err = sim.set_xdp(obj, "drv", fail=False, include_stderr=True) - fail(ret == 0, "Driver should refuse to load program with MTU of 9000...") - check_extack_nsim(err, "MTU too large w/ XDP enabled.", args) - sim.set_mtu(1500) - - sim.wait_for_flush() - start_test("Test non-offload XDP attaching to HW...") - bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/nooffload") - nooffload = bpf_pinned("/sys/fs/bpf/nooffload") - ret, _, err = sim.set_xdp(nooffload, "offload", - fail=False, include_stderr=True) - fail(ret == 0, "attached non-offloaded XDP program to HW") - check_extack_nsim(err, "xdpoffload of non-bound program.", args) - rm("/sys/fs/bpf/nooffload") - - start_test("Test offload XDP attaching to drv...") - bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/offload", - dev=sim['ifname']) - offload = bpf_pinned("/sys/fs/bpf/offload") - ret, _, err = sim.set_xdp(offload, "drv", fail=False, include_stderr=True) - fail(ret == 0, "attached offloaded XDP program to drv") - check_extack(err, "Using offloaded program without HW_MODE flag is not supported.", args) - rm("/sys/fs/bpf/offload") - sim.wait_for_flush() - - start_test("Test XDP load failure...") - sim.dfs["dev/bpf_bind_verifier_accept"] = 0 - ret, _, err = bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/offload", - dev=sim['ifname'], fail=False, include_stderr=True) - fail(ret == 0, "verifier should fail on load") - check_verifier_log(err, "[netdevsim] Hello from netdevsim!") - sim.dfs["dev/bpf_bind_verifier_accept"] = 1 - sim.wait_for_flush() - - start_test("Test XDP offload...") - _, _, err = sim.set_xdp(obj, "offload", verbose=True, include_stderr=True) - ipl = sim.ip_link_show(xdp=True) - link_xdp = ipl["xdp"]["prog"] - progs = bpftool_prog_list(expected=1) - prog = progs[0] - fail(link_xdp["id"] != prog["id"], "Loaded program has wrong ID") - - start_test("Test XDP offload is device bound...") - dfs = simdev.dfs_get_bound_progs(expected=1) - dprog = dfs[0] - - fail(prog["id"] != link_xdp["id"], "Program IDs don't match") - fail(prog["tag"] != link_xdp["tag"], "Program tags don't match") - fail(str(link_xdp["id"]) != dprog["id"], "Program IDs don't match") - fail(dprog["state"] != "xlated", "Offloaded program state not translated") - fail(dprog["loaded"] != "Y", "Offloaded program is not loaded") - - start_test("Test removing XDP program many times...") - sim.unset_xdp("offload") - sim.unset_xdp("offload") - sim.unset_xdp("drv") - sim.unset_xdp("drv") - sim.unset_xdp("") - sim.unset_xdp("") - bpftool_prog_list_wait(expected=0) - - start_test("Test attempt to use a program for a wrong device...") - simdev2 = NetdevSimDev() - sim2, = simdev2.nsims - sim2.set_xdp(obj, "offload") - pin_file, pinned = pin_prog("/sys/fs/bpf/tmp") - - ret, _, err = sim.set_xdp(pinned, "offload", - fail=False, include_stderr=True) - fail(ret == 0, "Pinned program loaded for a different device accepted") - check_extack(err, "Program bound to different device.", args) - simdev2.remove() - ret, _, err = sim.set_xdp(pinned, "offload", - fail=False, include_stderr=True) - fail(ret == 0, "Pinned program loaded for a removed device accepted") - check_extack(err, "Program bound to different device.", args) - rm(pin_file) - bpftool_prog_list_wait(expected=0) - - simdev, sim = test_multi_prog(simdev, sim, obj, "", 1) - simdev, sim = test_multi_prog(simdev, sim, obj, "drv", 1) - simdev, sim = test_multi_prog(simdev, sim, obj, "generic", 2) - - start_test("Test mixing of TC and XDP...") - sim.tc_add_ingress() - sim.set_xdp(obj, "offload") - ret, _, err = sim.cls_bpf_add_filter(obj, skip_sw=True, - fail=False, include_stderr=True) - fail(ret == 0, "Loading TC when XDP active should fail") - check_extack_nsim(err, "driver and netdev offload states mismatch.", args) - sim.unset_xdp("offload") - sim.wait_for_flush() - - sim.cls_bpf_add_filter(obj, skip_sw=True) - ret, _, err = sim.set_xdp(obj, "offload", fail=False, include_stderr=True) - fail(ret == 0, "Loading XDP when TC active should fail") - check_extack_nsim(err, "TC program is already loaded.", args) - - start_test("Test binding TC from pinned...") - pin_file, pinned = pin_prog("/sys/fs/bpf/tmp") - sim.tc_flush_filters(bound=1, total=1) - sim.cls_bpf_add_filter(pinned, da=True, skip_sw=True) - sim.tc_flush_filters(bound=1, total=1) - - start_test("Test binding XDP from pinned...") - sim.set_xdp(obj, "offload") - pin_file, pinned = pin_prog("/sys/fs/bpf/tmp2", idx=1) - - sim.set_xdp(pinned, "offload", force=True) - sim.unset_xdp("offload") - sim.set_xdp(pinned, "offload", force=True) - sim.unset_xdp("offload") - - start_test("Test offload of wrong type fails...") - ret, _ = sim.cls_bpf_add_filter(pinned, da=True, skip_sw=True, fail=False) - fail(ret == 0, "Managed to attach XDP program to TC") - - start_test("Test asking for TC offload of two filters...") - sim.cls_bpf_add_filter(obj, da=True, skip_sw=True) - ret, _, err = sim.cls_bpf_add_filter(obj, da=True, skip_sw=True, - fail=False, include_stderr=True) - fail(ret == 0, "Managed to offload two TC filters at the same time") - check_extack_nsim(err, "driver and netdev offload states mismatch.", args) - - sim.tc_flush_filters(bound=2, total=2) - - start_test("Test if netdev removal waits for translation...") - delay_msec = 500 - sim.dfs["dev/bpf_bind_verifier_delay"] = delay_msec - start = time.time() - cmd_line = "tc filter add dev %s ingress bpf %s da skip_sw" % \ - (sim['ifname'], obj) - tc_proc = cmd(cmd_line, background=True, fail=False) - # Wait for the verifier to start - while simdev.dfs_num_bound_progs() <= 2: - pass - simdev.remove() - end = time.time() - ret, _ = cmd_result(tc_proc, fail=False) - time_diff = end - start - log("Time", "start:\t%s\nend:\t%s\ndiff:\t%s" % (start, end, time_diff)) - - fail(ret == 0, "Managed to load TC filter on a unregistering device") - delay_sec = delay_msec * 0.001 - fail(time_diff < delay_sec, "Removal process took %s, expected %s" % - (time_diff, delay_sec)) - - # Remove all pinned files and reinstantiate the netdev - clean_up() - bpftool_prog_list_wait(expected=0) - - simdev = NetdevSimDev() - sim, = simdev.nsims - map_obj = bpf_obj("sample_map_ret0.bpf.o") - start_test("Test loading program with maps...") - sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON - - start_test("Test bpftool bound info reporting (own ns)...") - check_dev_info(False, "") - - start_test("Test bpftool bound info reporting (other ns)...") - ns = mknetns() - sim.set_ns(ns) - check_dev_info(True, "") - - start_test("Test bpftool bound info reporting (remote ns)...") - check_dev_info(False, ns) - - start_test("Test bpftool bound info reporting (back to own ns)...") - sim.set_ns("") - check_dev_info(False, "") - - prog_file, _ = pin_prog("/sys/fs/bpf/tmp_prog") - map_file, _ = pin_map("/sys/fs/bpf/tmp_map", idx=1, expected=2) - simdev.remove() - - start_test("Test bpftool bound info reporting (removed dev)...") - check_dev_info_removed(prog_file=prog_file, map_file=map_file) - - # Remove all pinned files and reinstantiate the netdev - clean_up() - bpftool_prog_list_wait(expected=0) - - simdev = NetdevSimDev() - sim, = simdev.nsims - - start_test("Test map update (no flags)...") - sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON - maps = bpftool_map_list(expected=2) - array = maps[0] if maps[0]["type"] == "array" else maps[1] - htab = maps[0] if maps[0]["type"] == "hash" else maps[1] - for m in maps: - for i in range(2): - bpftool("map update id %d key %s value %s" % - (m["id"], int2str("I", i), int2str("Q", i * 3))) - - for m in maps: - ret, _ = bpftool("map update id %d key %s value %s" % - (m["id"], int2str("I", 3), int2str("Q", 3 * 3)), - fail=False) - fail(ret == 0, "added too many entries") - - start_test("Test map update (exists)...") - for m in maps: - for i in range(2): - bpftool("map update id %d key %s value %s exist" % - (m["id"], int2str("I", i), int2str("Q", i * 3))) - - for m in maps: - ret, err = bpftool("map update id %d key %s value %s exist" % - (m["id"], int2str("I", 3), int2str("Q", 3 * 3)), - fail=False) - fail(ret == 0, "updated non-existing key") - fail(err["error"].find("No such file or directory") == -1, - "expected ENOENT, error is '%s'" % (err["error"])) - - start_test("Test map update (noexist)...") - for m in maps: - for i in range(2): - ret, err = bpftool("map update id %d key %s value %s noexist" % - (m["id"], int2str("I", i), int2str("Q", i * 3)), - fail=False) - fail(ret == 0, "updated existing key") - fail(err["error"].find("File exists") == -1, - "expected EEXIST, error is '%s'" % (err["error"])) - - start_test("Test map dump...") - for m in maps: - _, entries = bpftool("map dump id %d" % (m["id"])) - for i in range(2): - key = str2int(entries[i]["key"]) - fail(key != i, "expected key %d, got %d" % (key, i)) - val = str2int(entries[i]["value"]) - fail(val != i * 3, "expected value %d, got %d" % (val, i * 3)) - - start_test("Test map getnext...") - for m in maps: - _, entry = bpftool("map getnext id %d" % (m["id"])) - key = str2int(entry["next_key"]) - fail(key != 0, "next key %d, expected %d" % (key, 0)) - _, entry = bpftool("map getnext id %d key %s" % - (m["id"], int2str("I", 0))) - key = str2int(entry["next_key"]) - fail(key != 1, "next key %d, expected %d" % (key, 1)) - ret, err = bpftool("map getnext id %d key %s" % - (m["id"], int2str("I", 1)), fail=False) - fail(ret == 0, "got next key past the end of map") - fail(err["error"].find("No such file or directory") == -1, - "expected ENOENT, error is '%s'" % (err["error"])) - - start_test("Test map delete (htab)...") - for i in range(2): - bpftool("map delete id %d key %s" % (htab["id"], int2str("I", i))) - - start_test("Test map delete (array)...") - for i in range(2): - ret, err = bpftool("map delete id %d key %s" % - (htab["id"], int2str("I", i)), fail=False) - fail(ret == 0, "removed entry from an array") - fail(err["error"].find("No such file or directory") == -1, - "expected ENOENT, error is '%s'" % (err["error"])) - - start_test("Test map remove...") - sim.unset_xdp("offload") - bpftool_map_list_wait(expected=0) - simdev.remove() - - simdev = NetdevSimDev() - sim, = simdev.nsims - sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON - simdev.remove() - bpftool_map_list_wait(expected=0) - - start_test("Test map creation fail path...") - simdev = NetdevSimDev() - sim, = simdev.nsims - sim.dfs["bpf_map_accept"] = "N" - ret, _ = sim.set_xdp(map_obj, "offload", JSON=False, fail=False) - fail(ret == 0, - "netdevsim didn't refuse to create a map with offload disabled") - - simdev.remove() - - start_test("Test multi-dev ASIC program reuse...") - simdevA = NetdevSimDev() - simA, = simdevA.nsims - simdevB = NetdevSimDev(3) - simB1, simB2, simB3 = simdevB.nsims - sims = (simA, simB1, simB2, simB3) - simB = (simB1, simB2, simB3) - - bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimA", - dev=simA['ifname']) - progA = bpf_pinned("/sys/fs/bpf/nsimA") - bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB", - dev=simB1['ifname']) - progB = bpf_pinned("/sys/fs/bpf/nsimB") - - simA.set_xdp(progA, "offload", JSON=False) - for d in simdevB.nsims: - d.set_xdp(progB, "offload", JSON=False) - - start_test("Test multi-dev ASIC cross-dev replace...") - ret, _ = simA.set_xdp(progB, "offload", force=True, JSON=False, fail=False) - fail(ret == 0, "cross-ASIC program allowed") - for d in simdevB.nsims: - ret, _ = d.set_xdp(progA, "offload", force=True, JSON=False, fail=False) - fail(ret == 0, "cross-ASIC program allowed") - - start_test("Test multi-dev ASIC cross-dev install...") - for d in sims: - d.unset_xdp("offload") - - ret, _, err = simA.set_xdp(progB, "offload", force=True, JSON=False, - fail=False, include_stderr=True) - fail(ret == 0, "cross-ASIC program allowed") - check_extack(err, "Program bound to different device.", args) - for d in simdevB.nsims: - ret, _, err = d.set_xdp(progA, "offload", force=True, JSON=False, - fail=False, include_stderr=True) - fail(ret == 0, "cross-ASIC program allowed") - check_extack(err, "Program bound to different device.", args) - - start_test("Test multi-dev ASIC cross-dev map reuse...") - - mapA = bpftool("prog show %s" % (progA))[1]["map_ids"][0] - mapB = bpftool("prog show %s" % (progB))[1]["map_ids"][0] - - ret, _ = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB_", - dev=simB3['ifname'], - maps=["idx 0 id %d" % (mapB)], - fail=False) - fail(ret != 0, "couldn't reuse a map on the same ASIC") - rm("/sys/fs/bpf/nsimB_") - - ret, _, err = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimA_", - dev=simA['ifname'], - maps=["idx 0 id %d" % (mapB)], - fail=False, include_stderr=True) - fail(ret == 0, "could reuse a map on a different ASIC") - fail(err.count("offload device mismatch between prog and map") == 0, - "error message missing for cross-ASIC map") - - ret, _, err = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB_", - dev=simB1['ifname'], - maps=["idx 0 id %d" % (mapA)], - fail=False, include_stderr=True) - fail(ret == 0, "could reuse a map on a different ASIC") - fail(err.count("offload device mismatch between prog and map") == 0, - "error message missing for cross-ASIC map") - - start_test("Test multi-dev ASIC cross-dev destruction...") - bpftool_prog_list_wait(expected=2) - - simdevA.remove() - bpftool_prog_list_wait(expected=1) - - ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"] - fail(ifnameB != simB1['ifname'], "program not bound to original device") - simB1.remove() - bpftool_prog_list_wait(expected=1) - - start_test("Test multi-dev ASIC cross-dev destruction - move...") - ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"] - fail(ifnameB not in (simB2['ifname'], simB3['ifname']), - "program not bound to remaining devices") - - simB2.remove() - ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"] - fail(ifnameB != simB3['ifname'], "program not bound to remaining device") - - simB3.remove() - simdevB.remove() - bpftool_prog_list_wait(expected=0) - - start_test("Test multi-dev ASIC cross-dev destruction - orphaned...") - ret, out = bpftool("prog show %s" % (progB), fail=False) - fail(ret != 0, "couldn't get information about orphaned program") - - print("%s: OK" % (os.path.basename(__file__))) - -finally: - log("Clean up...", "", level=1) - log_level_inc() - clean_up() diff --git a/tools/testing/selftests/bpf/test_sock_addr.c b/tools/testing/selftests/bpf/test_sock_addr.c deleted file mode 100644 index 80c42583f597..000000000000 --- a/tools/testing/selftests/bpf/test_sock_addr.c +++ /dev/null @@ -1,1434 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// Copyright (c) 2018 Facebook - -#define _GNU_SOURCE - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -#include <arpa/inet.h> -#include <netinet/in.h> -#include <sys/types.h> -#include <sys/select.h> -#include <sys/socket.h> - -#include <linux/filter.h> - -#include <bpf/bpf.h> -#include <bpf/libbpf.h> - -#include "cgroup_helpers.h" -#include "testing_helpers.h" -#include "bpf_util.h" - -#ifndef ENOTSUPP -# define ENOTSUPP 524 -#endif - -#define CG_PATH "/foo" -#define CONNECT4_PROG_PATH "./connect4_prog.bpf.o" -#define CONNECT6_PROG_PATH "./connect6_prog.bpf.o" -#define SENDMSG4_PROG_PATH "./sendmsg4_prog.bpf.o" -#define SENDMSG6_PROG_PATH "./sendmsg6_prog.bpf.o" -#define RECVMSG4_PROG_PATH "./recvmsg4_prog.bpf.o" -#define RECVMSG6_PROG_PATH "./recvmsg6_prog.bpf.o" -#define BIND4_PROG_PATH "./bind4_prog.bpf.o" -#define BIND6_PROG_PATH "./bind6_prog.bpf.o" - -#define SERV4_IP "192.168.1.254" -#define SERV4_REWRITE_IP "127.0.0.1" -#define SRC4_IP "172.16.0.1" -#define SRC4_REWRITE_IP "127.0.0.4" -#define SERV4_PORT 4040 -#define SERV4_REWRITE_PORT 4444 - -#define SERV6_IP "face:b00c:1234:5678::abcd" -#define SERV6_REWRITE_IP "::1" -#define SERV6_V4MAPPED_IP "::ffff:192.168.0.4" -#define SRC6_IP "::1" -#define SRC6_REWRITE_IP "::6" -#define WILDCARD6_IP "::" -#define SERV6_PORT 6060 -#define SERV6_REWRITE_PORT 6666 - -#define INET_NTOP_BUF 40 - -struct sock_addr_test; - -typedef int (*load_fn)(const struct sock_addr_test *test); -typedef int (*info_fn)(int, struct sockaddr *, socklen_t *); - -char bpf_log_buf[BPF_LOG_BUF_SIZE]; - -struct sock_addr_test { - const char *descr; - /* BPF prog properties */ - load_fn loadfn; - enum bpf_attach_type expected_attach_type; - enum bpf_attach_type attach_type; - /* Socket properties */ - int domain; - int type; - /* IP:port pairs for BPF prog to override */ - const char *requested_ip; - unsigned short requested_port; - const char *expected_ip; - unsigned short expected_port; - const char *expected_src_ip; - /* Expected test result */ - enum { - LOAD_REJECT, - ATTACH_REJECT, - ATTACH_OKAY, - SYSCALL_EPERM, - SYSCALL_ENOTSUPP, - SUCCESS, - } expected_result; -}; - -static int bind4_prog_load(const struct sock_addr_test *test); -static int bind6_prog_load(const struct sock_addr_test *test); -static int connect4_prog_load(const struct sock_addr_test *test); -static int connect6_prog_load(const struct sock_addr_test *test); -static int sendmsg_allow_prog_load(const struct sock_addr_test *test); -static int sendmsg_deny_prog_load(const struct sock_addr_test *test); -static int recvmsg_allow_prog_load(const struct sock_addr_test *test); -static int recvmsg_deny_prog_load(const struct sock_addr_test *test); -static int sendmsg4_rw_asm_prog_load(const struct sock_addr_test *test); -static int recvmsg4_rw_c_prog_load(const struct sock_addr_test *test); -static int sendmsg4_rw_c_prog_load(const struct sock_addr_test *test); -static int sendmsg6_rw_asm_prog_load(const struct sock_addr_test *test); -static int recvmsg6_rw_c_prog_load(const struct sock_addr_test *test); -static int sendmsg6_rw_c_prog_load(const struct sock_addr_test *test); -static int sendmsg6_rw_v4mapped_prog_load(const struct sock_addr_test *test); -static int sendmsg6_rw_wildcard_prog_load(const struct sock_addr_test *test); - -static struct sock_addr_test tests[] = { - /* bind */ - { - "bind4: load prog with wrong expected attach type", - bind4_prog_load, - BPF_CGROUP_INET6_BIND, - BPF_CGROUP_INET4_BIND, - AF_INET, - SOCK_STREAM, - NULL, - 0, - NULL, - 0, - NULL, - LOAD_REJECT, - }, - { - "bind4: attach prog with wrong attach type", - bind4_prog_load, - BPF_CGROUP_INET4_BIND, - BPF_CGROUP_INET6_BIND, - AF_INET, - SOCK_STREAM, - NULL, - 0, - NULL, - 0, - NULL, - ATTACH_REJECT, - }, - { - "bind4: rewrite IP & TCP port in", - bind4_prog_load, - BPF_CGROUP_INET4_BIND, - BPF_CGROUP_INET4_BIND, - AF_INET, - SOCK_STREAM, - SERV4_IP, - SERV4_PORT, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - NULL, - SUCCESS, - }, - { - "bind4: rewrite IP & UDP port in", - bind4_prog_load, - BPF_CGROUP_INET4_BIND, - BPF_CGROUP_INET4_BIND, - AF_INET, - SOCK_DGRAM, - SERV4_IP, - SERV4_PORT, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - NULL, - SUCCESS, - }, - { - "bind6: load prog with wrong expected attach type", - bind6_prog_load, - BPF_CGROUP_INET4_BIND, - BPF_CGROUP_INET6_BIND, - AF_INET6, - SOCK_STREAM, - NULL, - 0, - NULL, - 0, - NULL, - LOAD_REJECT, - }, - { - "bind6: attach prog with wrong attach type", - bind6_prog_load, - BPF_CGROUP_INET6_BIND, - BPF_CGROUP_INET4_BIND, - AF_INET, - SOCK_STREAM, - NULL, - 0, - NULL, - 0, - NULL, - ATTACH_REJECT, - }, - { - "bind6: rewrite IP & TCP port in", - bind6_prog_load, - BPF_CGROUP_INET6_BIND, - BPF_CGROUP_INET6_BIND, - AF_INET6, - SOCK_STREAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - NULL, - SUCCESS, - }, - { - "bind6: rewrite IP & UDP port in", - bind6_prog_load, - BPF_CGROUP_INET6_BIND, - BPF_CGROUP_INET6_BIND, - AF_INET6, - SOCK_DGRAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - NULL, - SUCCESS, - }, - - /* connect */ - { - "connect4: load prog with wrong expected attach type", - connect4_prog_load, - BPF_CGROUP_INET6_CONNECT, - BPF_CGROUP_INET4_CONNECT, - AF_INET, - SOCK_STREAM, - NULL, - 0, - NULL, - 0, - NULL, - LOAD_REJECT, - }, - { - "connect4: attach prog with wrong attach type", - connect4_prog_load, - BPF_CGROUP_INET4_CONNECT, - BPF_CGROUP_INET6_CONNECT, - AF_INET, - SOCK_STREAM, - NULL, - 0, - NULL, - 0, - NULL, - ATTACH_REJECT, - }, - { - "connect4: rewrite IP & TCP port", - connect4_prog_load, - BPF_CGROUP_INET4_CONNECT, - BPF_CGROUP_INET4_CONNECT, - AF_INET, - SOCK_STREAM, - SERV4_IP, - SERV4_PORT, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - SRC4_REWRITE_IP, - SUCCESS, - }, - { - "connect4: rewrite IP & UDP port", - connect4_prog_load, - BPF_CGROUP_INET4_CONNECT, - BPF_CGROUP_INET4_CONNECT, - AF_INET, - SOCK_DGRAM, - SERV4_IP, - SERV4_PORT, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - SRC4_REWRITE_IP, - SUCCESS, - }, - { - "connect6: load prog with wrong expected attach type", - connect6_prog_load, - BPF_CGROUP_INET4_CONNECT, - BPF_CGROUP_INET6_CONNECT, - AF_INET6, - SOCK_STREAM, - NULL, - 0, - NULL, - 0, - NULL, - LOAD_REJECT, - }, - { - "connect6: attach prog with wrong attach type", - connect6_prog_load, - BPF_CGROUP_INET6_CONNECT, - BPF_CGROUP_INET4_CONNECT, - AF_INET, - SOCK_STREAM, - NULL, - 0, - NULL, - 0, - NULL, - ATTACH_REJECT, - }, - { - "connect6: rewrite IP & TCP port", - connect6_prog_load, - BPF_CGROUP_INET6_CONNECT, - BPF_CGROUP_INET6_CONNECT, - AF_INET6, - SOCK_STREAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SRC6_REWRITE_IP, - SUCCESS, - }, - { - "connect6: rewrite IP & UDP port", - connect6_prog_load, - BPF_CGROUP_INET6_CONNECT, - BPF_CGROUP_INET6_CONNECT, - AF_INET6, - SOCK_DGRAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SRC6_REWRITE_IP, - SUCCESS, - }, - - /* sendmsg */ - { - "sendmsg4: load prog with wrong expected attach type", - sendmsg4_rw_asm_prog_load, - BPF_CGROUP_UDP6_SENDMSG, - BPF_CGROUP_UDP4_SENDMSG, - AF_INET, - SOCK_DGRAM, - NULL, - 0, - NULL, - 0, - NULL, - LOAD_REJECT, - }, - { - "sendmsg4: attach prog with wrong attach type", - sendmsg4_rw_asm_prog_load, - BPF_CGROUP_UDP4_SENDMSG, - BPF_CGROUP_UDP6_SENDMSG, - AF_INET, - SOCK_DGRAM, - NULL, - 0, - NULL, - 0, - NULL, - ATTACH_REJECT, - }, - { - "sendmsg4: rewrite IP & port (asm)", - sendmsg4_rw_asm_prog_load, - BPF_CGROUP_UDP4_SENDMSG, - BPF_CGROUP_UDP4_SENDMSG, - AF_INET, - SOCK_DGRAM, - SERV4_IP, - SERV4_PORT, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - SRC4_REWRITE_IP, - SUCCESS, - }, - { - "sendmsg4: rewrite IP & port (C)", - sendmsg4_rw_c_prog_load, - BPF_CGROUP_UDP4_SENDMSG, - BPF_CGROUP_UDP4_SENDMSG, - AF_INET, - SOCK_DGRAM, - SERV4_IP, - SERV4_PORT, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - SRC4_REWRITE_IP, - SUCCESS, - }, - { - "sendmsg4: deny call", - sendmsg_deny_prog_load, - BPF_CGROUP_UDP4_SENDMSG, - BPF_CGROUP_UDP4_SENDMSG, - AF_INET, - SOCK_DGRAM, - SERV4_IP, - SERV4_PORT, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - SRC4_REWRITE_IP, - SYSCALL_EPERM, - }, - { - "sendmsg6: load prog with wrong expected attach type", - sendmsg6_rw_asm_prog_load, - BPF_CGROUP_UDP4_SENDMSG, - BPF_CGROUP_UDP6_SENDMSG, - AF_INET6, - SOCK_DGRAM, - NULL, - 0, - NULL, - 0, - NULL, - LOAD_REJECT, - }, - { - "sendmsg6: attach prog with wrong attach type", - sendmsg6_rw_asm_prog_load, - BPF_CGROUP_UDP6_SENDMSG, - BPF_CGROUP_UDP4_SENDMSG, - AF_INET6, - SOCK_DGRAM, - NULL, - 0, - NULL, - 0, - NULL, - ATTACH_REJECT, - }, - { - "sendmsg6: rewrite IP & port (asm)", - sendmsg6_rw_asm_prog_load, - BPF_CGROUP_UDP6_SENDMSG, - BPF_CGROUP_UDP6_SENDMSG, - AF_INET6, - SOCK_DGRAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SRC6_REWRITE_IP, - SUCCESS, - }, - { - "sendmsg6: rewrite IP & port (C)", - sendmsg6_rw_c_prog_load, - BPF_CGROUP_UDP6_SENDMSG, - BPF_CGROUP_UDP6_SENDMSG, - AF_INET6, - SOCK_DGRAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SRC6_REWRITE_IP, - SUCCESS, - }, - { - "sendmsg6: IPv4-mapped IPv6", - sendmsg6_rw_v4mapped_prog_load, - BPF_CGROUP_UDP6_SENDMSG, - BPF_CGROUP_UDP6_SENDMSG, - AF_INET6, - SOCK_DGRAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SRC6_REWRITE_IP, - SYSCALL_ENOTSUPP, - }, - { - "sendmsg6: set dst IP = [::] (BSD'ism)", - sendmsg6_rw_wildcard_prog_load, - BPF_CGROUP_UDP6_SENDMSG, - BPF_CGROUP_UDP6_SENDMSG, - AF_INET6, - SOCK_DGRAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SRC6_REWRITE_IP, - SUCCESS, - }, - { - "sendmsg6: preserve dst IP = [::] (BSD'ism)", - sendmsg_allow_prog_load, - BPF_CGROUP_UDP6_SENDMSG, - BPF_CGROUP_UDP6_SENDMSG, - AF_INET6, - SOCK_DGRAM, - WILDCARD6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_PORT, - SRC6_IP, - SUCCESS, - }, - { - "sendmsg6: deny call", - sendmsg_deny_prog_load, - BPF_CGROUP_UDP6_SENDMSG, - BPF_CGROUP_UDP6_SENDMSG, - AF_INET6, - SOCK_DGRAM, - SERV6_IP, - SERV6_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SRC6_REWRITE_IP, - SYSCALL_EPERM, - }, - - /* recvmsg */ - { - "recvmsg4: return code ok", - recvmsg_allow_prog_load, - BPF_CGROUP_UDP4_RECVMSG, - BPF_CGROUP_UDP4_RECVMSG, - AF_INET, - SOCK_DGRAM, - NULL, - 0, - NULL, - 0, - NULL, - ATTACH_OKAY, - }, - { - "recvmsg4: return code !ok", - recvmsg_deny_prog_load, - BPF_CGROUP_UDP4_RECVMSG, - BPF_CGROUP_UDP4_RECVMSG, - AF_INET, - SOCK_DGRAM, - NULL, - 0, - NULL, - 0, - NULL, - LOAD_REJECT, - }, - { - "recvmsg6: return code ok", - recvmsg_allow_prog_load, - BPF_CGROUP_UDP6_RECVMSG, - BPF_CGROUP_UDP6_RECVMSG, - AF_INET6, - SOCK_DGRAM, - NULL, - 0, - NULL, - 0, - NULL, - ATTACH_OKAY, - }, - { - "recvmsg6: return code !ok", - recvmsg_deny_prog_load, - BPF_CGROUP_UDP6_RECVMSG, - BPF_CGROUP_UDP6_RECVMSG, - AF_INET6, - SOCK_DGRAM, - NULL, - 0, - NULL, - 0, - NULL, - LOAD_REJECT, - }, - { - "recvmsg4: rewrite IP & port (C)", - recvmsg4_rw_c_prog_load, - BPF_CGROUP_UDP4_RECVMSG, - BPF_CGROUP_UDP4_RECVMSG, - AF_INET, - SOCK_DGRAM, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - SERV4_REWRITE_IP, - SERV4_REWRITE_PORT, - SERV4_IP, - SUCCESS, - }, - { - "recvmsg6: rewrite IP & port (C)", - recvmsg6_rw_c_prog_load, - BPF_CGROUP_UDP6_RECVMSG, - BPF_CGROUP_UDP6_RECVMSG, - AF_INET6, - SOCK_DGRAM, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SERV6_REWRITE_IP, - SERV6_REWRITE_PORT, - SERV6_IP, - SUCCESS, - }, -}; - -static int mk_sockaddr(int domain, const char *ip, unsigned short port, - struct sockaddr *addr, socklen_t addr_len) -{ - struct sockaddr_in6 *addr6; - struct sockaddr_in *addr4; - - if (domain != AF_INET && domain != AF_INET6) { - log_err("Unsupported address family"); - return -1; - } - - memset(addr, 0, addr_len); - - if (domain == AF_INET) { - if (addr_len < sizeof(struct sockaddr_in)) - return -1; - addr4 = (struct sockaddr_in *)addr; - addr4->sin_family = domain; - addr4->sin_port = htons(port); - if (inet_pton(domain, ip, (void *)&addr4->sin_addr) != 1) { - log_err("Invalid IPv4: %s", ip); - return -1; - } - } else if (domain == AF_INET6) { - if (addr_len < sizeof(struct sockaddr_in6)) - return -1; - addr6 = (struct sockaddr_in6 *)addr; - addr6->sin6_family = domain; - addr6->sin6_port = htons(port); - if (inet_pton(domain, ip, (void *)&addr6->sin6_addr) != 1) { - log_err("Invalid IPv6: %s", ip); - return -1; - } - } - - return 0; -} - -static int load_insns(const struct sock_addr_test *test, - const struct bpf_insn *insns, size_t insns_cnt) -{ - LIBBPF_OPTS(bpf_prog_load_opts, opts); - int ret; - - opts.expected_attach_type = test->expected_attach_type; - opts.log_buf = bpf_log_buf; - opts.log_size = BPF_LOG_BUF_SIZE; - - ret = bpf_prog_load(BPF_PROG_TYPE_CGROUP_SOCK_ADDR, NULL, "GPL", insns, insns_cnt, &opts); - if (ret < 0 && test->expected_result != LOAD_REJECT) { - log_err(">>> Loading program error.\n" - ">>> Verifier output:\n%s\n-------\n", bpf_log_buf); - } - - return ret; -} - -static int load_path(const struct sock_addr_test *test, const char *path) -{ - struct bpf_object *obj; - struct bpf_program *prog; - int err; - - obj = bpf_object__open_file(path, NULL); - err = libbpf_get_error(obj); - if (err) { - log_err(">>> Opening BPF object (%s) error.\n", path); - return -1; - } - - prog = bpf_object__next_program(obj, NULL); - if (!prog) - goto err_out; - - bpf_program__set_type(prog, BPF_PROG_TYPE_CGROUP_SOCK_ADDR); - bpf_program__set_expected_attach_type(prog, test->expected_attach_type); - bpf_program__set_flags(prog, testing_prog_flags()); - - err = bpf_object__load(obj); - if (err) { - if (test->expected_result != LOAD_REJECT) - log_err(">>> Loading program (%s) error.\n", path); - goto err_out; - } - - return bpf_program__fd(prog); -err_out: - bpf_object__close(obj); - return -1; -} - -static int bind4_prog_load(const struct sock_addr_test *test) -{ - return load_path(test, BIND4_PROG_PATH); -} - -static int bind6_prog_load(const struct sock_addr_test *test) -{ - return load_path(test, BIND6_PROG_PATH); -} - -static int connect4_prog_load(const struct sock_addr_test *test) -{ - return load_path(test, CONNECT4_PROG_PATH); -} - -static int connect6_prog_load(const struct sock_addr_test *test) -{ - return load_path(test, CONNECT6_PROG_PATH); -} - -static int xmsg_ret_only_prog_load(const struct sock_addr_test *test, - int32_t rc) -{ - struct bpf_insn insns[] = { - /* return rc */ - BPF_MOV64_IMM(BPF_REG_0, rc), - BPF_EXIT_INSN(), - }; - return load_insns(test, insns, ARRAY_SIZE(insns)); -} - -static int sendmsg_allow_prog_load(const struct sock_addr_test *test) -{ - return xmsg_ret_only_prog_load(test, /*rc*/ 1); -} - -static int sendmsg_deny_prog_load(const struct sock_addr_test *test) -{ - return xmsg_ret_only_prog_load(test, /*rc*/ 0); -} - -static int recvmsg_allow_prog_load(const struct sock_addr_test *test) -{ - return xmsg_ret_only_prog_load(test, /*rc*/ 1); -} - -static int recvmsg_deny_prog_load(const struct sock_addr_test *test) -{ - return xmsg_ret_only_prog_load(test, /*rc*/ 0); -} - -static int sendmsg4_rw_asm_prog_load(const struct sock_addr_test *test) -{ - struct sockaddr_in dst4_rw_addr; - struct in_addr src4_rw_ip; - - if (inet_pton(AF_INET, SRC4_REWRITE_IP, (void *)&src4_rw_ip) != 1) { - log_err("Invalid IPv4: %s", SRC4_REWRITE_IP); - return -1; - } - - if (mk_sockaddr(AF_INET, SERV4_REWRITE_IP, SERV4_REWRITE_PORT, - (struct sockaddr *)&dst4_rw_addr, - sizeof(dst4_rw_addr)) == -1) - return -1; - - struct bpf_insn insns[] = { - BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), - - /* if (sk.family == AF_INET && */ - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6, - offsetof(struct bpf_sock_addr, family)), - BPF_JMP_IMM(BPF_JNE, BPF_REG_7, AF_INET, 8), - - /* sk.type == SOCK_DGRAM) { */ - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6, - offsetof(struct bpf_sock_addr, type)), - BPF_JMP_IMM(BPF_JNE, BPF_REG_7, SOCK_DGRAM, 6), - - /* msg_src_ip4 = src4_rw_ip */ - BPF_MOV32_IMM(BPF_REG_7, src4_rw_ip.s_addr), - BPF_STX_MEM(BPF_W, BPF_REG_6, BPF_REG_7, - offsetof(struct bpf_sock_addr, msg_src_ip4)), - - /* user_ip4 = dst4_rw_addr.sin_addr */ - BPF_MOV32_IMM(BPF_REG_7, dst4_rw_addr.sin_addr.s_addr), - BPF_STX_MEM(BPF_W, BPF_REG_6, BPF_REG_7, - offsetof(struct bpf_sock_addr, user_ip4)), - - /* user_port = dst4_rw_addr.sin_port */ - BPF_MOV32_IMM(BPF_REG_7, dst4_rw_addr.sin_port), - BPF_STX_MEM(BPF_W, BPF_REG_6, BPF_REG_7, - offsetof(struct bpf_sock_addr, user_port)), - /* } */ - - /* return 1 */ - BPF_MOV64_IMM(BPF_REG_0, 1), - BPF_EXIT_INSN(), - }; - - return load_insns(test, insns, ARRAY_SIZE(insns)); -} - -static int recvmsg4_rw_c_prog_load(const struct sock_addr_test *test) -{ - return load_path(test, RECVMSG4_PROG_PATH); -} - -static int sendmsg4_rw_c_prog_load(const struct sock_addr_test *test) -{ - return load_path(test, SENDMSG4_PROG_PATH); -} - -static int sendmsg6_rw_dst_asm_prog_load(const struct sock_addr_test *test, - const char *rw_dst_ip) -{ - struct sockaddr_in6 dst6_rw_addr; - struct in6_addr src6_rw_ip; - - if (inet_pton(AF_INET6, SRC6_REWRITE_IP, (void *)&src6_rw_ip) != 1) { - log_err("Invalid IPv6: %s", SRC6_REWRITE_IP); - return -1; - } - - if (mk_sockaddr(AF_INET6, rw_dst_ip, SERV6_REWRITE_PORT, - (struct sockaddr *)&dst6_rw_addr, - sizeof(dst6_rw_addr)) == -1) - return -1; - - struct bpf_insn insns[] = { - BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), - - /* if (sk.family == AF_INET6) { */ - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6, - offsetof(struct bpf_sock_addr, family)), - BPF_JMP_IMM(BPF_JNE, BPF_REG_7, AF_INET6, 18), - -#define STORE_IPV6_WORD_N(DST, SRC, N) \ - BPF_MOV32_IMM(BPF_REG_7, SRC[N]), \ - BPF_STX_MEM(BPF_W, BPF_REG_6, BPF_REG_7, \ - offsetof(struct bpf_sock_addr, DST[N])) - -#define STORE_IPV6(DST, SRC) \ - STORE_IPV6_WORD_N(DST, SRC, 0), \ - STORE_IPV6_WORD_N(DST, SRC, 1), \ - STORE_IPV6_WORD_N(DST, SRC, 2), \ - STORE_IPV6_WORD_N(DST, SRC, 3) - - STORE_IPV6(msg_src_ip6, src6_rw_ip.s6_addr32), - STORE_IPV6(user_ip6, dst6_rw_addr.sin6_addr.s6_addr32), - - /* user_port = dst6_rw_addr.sin6_port */ - BPF_MOV32_IMM(BPF_REG_7, dst6_rw_addr.sin6_port), - BPF_STX_MEM(BPF_W, BPF_REG_6, BPF_REG_7, - offsetof(struct bpf_sock_addr, user_port)), - - /* } */ - - /* return 1 */ - BPF_MOV64_IMM(BPF_REG_0, 1), - BPF_EXIT_INSN(), - }; - - return load_insns(test, insns, ARRAY_SIZE(insns)); -} - -static int sendmsg6_rw_asm_prog_load(const struct sock_addr_test *test) -{ - return sendmsg6_rw_dst_asm_prog_load(test, SERV6_REWRITE_IP); -} - -static int recvmsg6_rw_c_prog_load(const struct sock_addr_test *test) -{ - return load_path(test, RECVMSG6_PROG_PATH); -} - -static int sendmsg6_rw_v4mapped_prog_load(const struct sock_addr_test *test) -{ - return sendmsg6_rw_dst_asm_prog_load(test, SERV6_V4MAPPED_IP); -} - -static int sendmsg6_rw_wildcard_prog_load(const struct sock_addr_test *test) -{ - return sendmsg6_rw_dst_asm_prog_load(test, WILDCARD6_IP); -} - -static int sendmsg6_rw_c_prog_load(const struct sock_addr_test *test) -{ - return load_path(test, SENDMSG6_PROG_PATH); -} - -static int cmp_addr(const struct sockaddr_storage *addr1, - const struct sockaddr_storage *addr2, int cmp_port) -{ - const struct sockaddr_in *four1, *four2; - const struct sockaddr_in6 *six1, *six2; - - if (addr1->ss_family != addr2->ss_family) - return -1; - - if (addr1->ss_family == AF_INET) { - four1 = (const struct sockaddr_in *)addr1; - four2 = (const struct sockaddr_in *)addr2; - return !((four1->sin_port == four2->sin_port || !cmp_port) && - four1->sin_addr.s_addr == four2->sin_addr.s_addr); - } else if (addr1->ss_family == AF_INET6) { - six1 = (const struct sockaddr_in6 *)addr1; - six2 = (const struct sockaddr_in6 *)addr2; - return !((six1->sin6_port == six2->sin6_port || !cmp_port) && - !memcmp(&six1->sin6_addr, &six2->sin6_addr, - sizeof(struct in6_addr))); - } - - return -1; -} - -static int cmp_sock_addr(info_fn fn, int sock1, - const struct sockaddr_storage *addr2, int cmp_port) -{ - struct sockaddr_storage addr1; - socklen_t len1 = sizeof(addr1); - - memset(&addr1, 0, len1); - if (fn(sock1, (struct sockaddr *)&addr1, (socklen_t *)&len1) != 0) - return -1; - - return cmp_addr(&addr1, addr2, cmp_port); -} - -static int cmp_local_ip(int sock1, const struct sockaddr_storage *addr2) -{ - return cmp_sock_addr(getsockname, sock1, addr2, /*cmp_port*/ 0); -} - -static int cmp_local_addr(int sock1, const struct sockaddr_storage *addr2) -{ - return cmp_sock_addr(getsockname, sock1, addr2, /*cmp_port*/ 1); -} - -static int cmp_peer_addr(int sock1, const struct sockaddr_storage *addr2) -{ - return cmp_sock_addr(getpeername, sock1, addr2, /*cmp_port*/ 1); -} - -static int start_server(int type, const struct sockaddr_storage *addr, - socklen_t addr_len) -{ - int fd; - - fd = socket(addr->ss_family, type, 0); - if (fd == -1) { - log_err("Failed to create server socket"); - goto out; - } - - if (bind(fd, (const struct sockaddr *)addr, addr_len) == -1) { - log_err("Failed to bind server socket"); - goto close_out; - } - - if (type == SOCK_STREAM) { - if (listen(fd, 128) == -1) { - log_err("Failed to listen on server socket"); - goto close_out; - } - } - - goto out; -close_out: - close(fd); - fd = -1; -out: - return fd; -} - -static int connect_to_server(int type, const struct sockaddr_storage *addr, - socklen_t addr_len) -{ - int domain; - int fd = -1; - - domain = addr->ss_family; - - if (domain != AF_INET && domain != AF_INET6) { - log_err("Unsupported address family"); - goto err; - } - - fd = socket(domain, type, 0); - if (fd == -1) { - log_err("Failed to create client socket"); - goto err; - } - - if (connect(fd, (const struct sockaddr *)addr, addr_len) == -1) { - log_err("Fail to connect to server"); - goto err; - } - - goto out; -err: - close(fd); - fd = -1; -out: - return fd; -} - -int init_pktinfo(int domain, struct cmsghdr *cmsg) -{ - struct in6_pktinfo *pktinfo6; - struct in_pktinfo *pktinfo4; - - if (domain == AF_INET) { - cmsg->cmsg_level = SOL_IP; - cmsg->cmsg_type = IP_PKTINFO; - cmsg->cmsg_len = CMSG_LEN(sizeof(struct in_pktinfo)); - pktinfo4 = (struct in_pktinfo *)CMSG_DATA(cmsg); - memset(pktinfo4, 0, sizeof(struct in_pktinfo)); - if (inet_pton(domain, SRC4_IP, - (void *)&pktinfo4->ipi_spec_dst) != 1) - return -1; - } else if (domain == AF_INET6) { - cmsg->cmsg_level = SOL_IPV6; - cmsg->cmsg_type = IPV6_PKTINFO; - cmsg->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); - pktinfo6 = (struct in6_pktinfo *)CMSG_DATA(cmsg); - memset(pktinfo6, 0, sizeof(struct in6_pktinfo)); - if (inet_pton(domain, SRC6_IP, - (void *)&pktinfo6->ipi6_addr) != 1) - return -1; - } else { - return -1; - } - - return 0; -} - -static int sendmsg_to_server(int type, const struct sockaddr_storage *addr, - socklen_t addr_len, int set_cmsg, int flags, - int *syscall_err) -{ - union { - char buf[CMSG_SPACE(sizeof(struct in6_pktinfo))]; - struct cmsghdr align; - } control6; - union { - char buf[CMSG_SPACE(sizeof(struct in_pktinfo))]; - struct cmsghdr align; - } control4; - struct msghdr hdr; - struct iovec iov; - char data = 'a'; - int domain; - int fd = -1; - - domain = addr->ss_family; - - if (domain != AF_INET && domain != AF_INET6) { - log_err("Unsupported address family"); - goto err; - } - - fd = socket(domain, type, 0); - if (fd == -1) { - log_err("Failed to create client socket"); - goto err; - } - - memset(&iov, 0, sizeof(iov)); - iov.iov_base = &data; - iov.iov_len = sizeof(data); - - memset(&hdr, 0, sizeof(hdr)); - hdr.msg_name = (void *)addr; - hdr.msg_namelen = addr_len; - hdr.msg_iov = &iov; - hdr.msg_iovlen = 1; - - if (set_cmsg) { - if (domain == AF_INET) { - hdr.msg_control = &control4; - hdr.msg_controllen = sizeof(control4.buf); - } else if (domain == AF_INET6) { - hdr.msg_control = &control6; - hdr.msg_controllen = sizeof(control6.buf); - } - if (init_pktinfo(domain, CMSG_FIRSTHDR(&hdr))) { - log_err("Fail to init pktinfo"); - goto err; - } - } - - if (sendmsg(fd, &hdr, flags) != sizeof(data)) { - log_err("Fail to send message to server"); - *syscall_err = errno; - goto err; - } - - goto out; -err: - close(fd); - fd = -1; -out: - return fd; -} - -static int fastconnect_to_server(const struct sockaddr_storage *addr, - socklen_t addr_len) -{ - int sendmsg_err; - - return sendmsg_to_server(SOCK_STREAM, addr, addr_len, /*set_cmsg*/0, - MSG_FASTOPEN, &sendmsg_err); -} - -static int recvmsg_from_client(int sockfd, struct sockaddr_storage *src_addr) -{ - struct timeval tv; - struct msghdr hdr; - struct iovec iov; - char data[64]; - fd_set rfds; - - FD_ZERO(&rfds); - FD_SET(sockfd, &rfds); - - tv.tv_sec = 2; - tv.tv_usec = 0; - - if (select(sockfd + 1, &rfds, NULL, NULL, &tv) <= 0 || - !FD_ISSET(sockfd, &rfds)) - return -1; - - memset(&iov, 0, sizeof(iov)); - iov.iov_base = data; - iov.iov_len = sizeof(data); - - memset(&hdr, 0, sizeof(hdr)); - hdr.msg_name = src_addr; - hdr.msg_namelen = sizeof(struct sockaddr_storage); - hdr.msg_iov = &iov; - hdr.msg_iovlen = 1; - - return recvmsg(sockfd, &hdr, 0); -} - -static int init_addrs(const struct sock_addr_test *test, - struct sockaddr_storage *requested_addr, - struct sockaddr_storage *expected_addr, - struct sockaddr_storage *expected_src_addr) -{ - socklen_t addr_len = sizeof(struct sockaddr_storage); - - if (mk_sockaddr(test->domain, test->expected_ip, test->expected_port, - (struct sockaddr *)expected_addr, addr_len) == -1) - goto err; - - if (mk_sockaddr(test->domain, test->requested_ip, test->requested_port, - (struct sockaddr *)requested_addr, addr_len) == -1) - goto err; - - if (test->expected_src_ip && - mk_sockaddr(test->domain, test->expected_src_ip, 0, - (struct sockaddr *)expected_src_addr, addr_len) == -1) - goto err; - - return 0; -err: - return -1; -} - -static int run_bind_test_case(const struct sock_addr_test *test) -{ - socklen_t addr_len = sizeof(struct sockaddr_storage); - struct sockaddr_storage requested_addr; - struct sockaddr_storage expected_addr; - int clientfd = -1; - int servfd = -1; - int err = 0; - - if (init_addrs(test, &requested_addr, &expected_addr, NULL)) - goto err; - - servfd = start_server(test->type, &requested_addr, addr_len); - if (servfd == -1) - goto err; - - if (cmp_local_addr(servfd, &expected_addr)) - goto err; - - /* Try to connect to server just in case */ - clientfd = connect_to_server(test->type, &expected_addr, addr_len); - if (clientfd == -1) - goto err; - - goto out; -err: - err = -1; -out: - close(clientfd); - close(servfd); - return err; -} - -static int run_connect_test_case(const struct sock_addr_test *test) -{ - socklen_t addr_len = sizeof(struct sockaddr_storage); - struct sockaddr_storage expected_src_addr; - struct sockaddr_storage requested_addr; - struct sockaddr_storage expected_addr; - int clientfd = -1; - int servfd = -1; - int err = 0; - - if (init_addrs(test, &requested_addr, &expected_addr, - &expected_src_addr)) - goto err; - - /* Prepare server to connect to */ - servfd = start_server(test->type, &expected_addr, addr_len); - if (servfd == -1) - goto err; - - clientfd = connect_to_server(test->type, &requested_addr, addr_len); - if (clientfd == -1) - goto err; - - /* Make sure src and dst addrs were overridden properly */ - if (cmp_peer_addr(clientfd, &expected_addr)) - goto err; - - if (cmp_local_ip(clientfd, &expected_src_addr)) - goto err; - - if (test->type == SOCK_STREAM) { - /* Test TCP Fast Open scenario */ - clientfd = fastconnect_to_server(&requested_addr, addr_len); - if (clientfd == -1) - goto err; - - /* Make sure src and dst addrs were overridden properly */ - if (cmp_peer_addr(clientfd, &expected_addr)) - goto err; - - if (cmp_local_ip(clientfd, &expected_src_addr)) - goto err; - } - - goto out; -err: - err = -1; -out: - close(clientfd); - close(servfd); - return err; -} - -static int run_xmsg_test_case(const struct sock_addr_test *test, int max_cmsg) -{ - socklen_t addr_len = sizeof(struct sockaddr_storage); - struct sockaddr_storage expected_addr; - struct sockaddr_storage server_addr; - struct sockaddr_storage sendmsg_addr; - struct sockaddr_storage recvmsg_addr; - int clientfd = -1; - int servfd = -1; - int set_cmsg; - int err = 0; - - if (test->type != SOCK_DGRAM) - goto err; - - if (init_addrs(test, &sendmsg_addr, &server_addr, &expected_addr)) - goto err; - - /* Prepare server to sendmsg to */ - servfd = start_server(test->type, &server_addr, addr_len); - if (servfd == -1) - goto err; - - for (set_cmsg = 0; set_cmsg <= max_cmsg; ++set_cmsg) { - if (clientfd >= 0) - close(clientfd); - - clientfd = sendmsg_to_server(test->type, &sendmsg_addr, - addr_len, set_cmsg, /*flags*/0, - &err); - if (err) - goto out; - else if (clientfd == -1) - goto err; - - /* Try to receive message on server instead of using - * getpeername(2) on client socket, to check that client's - * destination address was rewritten properly, since - * getpeername(2) doesn't work with unconnected datagram - * sockets. - * - * Get source address from recvmsg(2) as well to make sure - * source was rewritten properly: getsockname(2) can't be used - * since socket is unconnected and source defined for one - * specific packet may differ from the one used by default and - * returned by getsockname(2). - */ - if (recvmsg_from_client(servfd, &recvmsg_addr) == -1) - goto err; - - if (cmp_addr(&recvmsg_addr, &expected_addr, /*cmp_port*/0)) - goto err; - } - - goto out; -err: - err = -1; -out: - close(clientfd); - close(servfd); - return err; -} - -static int run_test_case(int cgfd, const struct sock_addr_test *test) -{ - int progfd = -1; - int err = 0; - - printf("Test case: %s .. ", test->descr); - - progfd = test->loadfn(test); - if (test->expected_result == LOAD_REJECT && progfd < 0) - goto out; - else if (test->expected_result == LOAD_REJECT || progfd < 0) - goto err; - - err = bpf_prog_attach(progfd, cgfd, test->attach_type, - BPF_F_ALLOW_OVERRIDE); - if (test->expected_result == ATTACH_REJECT && err) { - err = 0; /* error was expected, reset it */ - goto out; - } else if (test->expected_result == ATTACH_REJECT || err) { - goto err; - } else if (test->expected_result == ATTACH_OKAY) { - err = 0; - goto out; - } - - switch (test->attach_type) { - case BPF_CGROUP_INET4_BIND: - case BPF_CGROUP_INET6_BIND: - err = run_bind_test_case(test); - break; - case BPF_CGROUP_INET4_CONNECT: - case BPF_CGROUP_INET6_CONNECT: - err = run_connect_test_case(test); - break; - case BPF_CGROUP_UDP4_SENDMSG: - case BPF_CGROUP_UDP6_SENDMSG: - err = run_xmsg_test_case(test, 1); - break; - case BPF_CGROUP_UDP4_RECVMSG: - case BPF_CGROUP_UDP6_RECVMSG: - err = run_xmsg_test_case(test, 0); - break; - default: - goto err; - } - - if (test->expected_result == SYSCALL_EPERM && err == EPERM) { - err = 0; /* error was expected, reset it */ - goto out; - } - - if (test->expected_result == SYSCALL_ENOTSUPP && err == ENOTSUPP) { - err = 0; /* error was expected, reset it */ - goto out; - } - - if (err || test->expected_result != SUCCESS) - goto err; - - goto out; -err: - err = -1; -out: - /* Detaching w/o checking return code: best effort attempt. */ - if (progfd != -1) - bpf_prog_detach(cgfd, test->attach_type); - close(progfd); - printf("[%s]\n", err ? "FAIL" : "PASS"); - return err; -} - -static int run_tests(int cgfd) -{ - int passes = 0; - int fails = 0; - int i; - - for (i = 0; i < ARRAY_SIZE(tests); ++i) { - if (run_test_case(cgfd, &tests[i])) - ++fails; - else - ++passes; - } - printf("Summary: %d PASSED, %d FAILED\n", passes, fails); - return fails ? -1 : 0; -} - -int main(int argc, char **argv) -{ - int cgfd = -1; - int err = 0; - - if (argc < 2) { - fprintf(stderr, - "%s has to be run via %s.sh. Skip direct run.\n", - argv[0], argv[0]); - exit(err); - } - - cgfd = cgroup_setup_and_join(CG_PATH); - if (cgfd < 0) - goto err; - - /* Use libbpf 1.0 API mode */ - libbpf_set_strict_mode(LIBBPF_STRICT_ALL); - - if (run_tests(cgfd)) - goto err; - - goto out; -err: - err = -1; -out: - close(cgfd); - cleanup_cgroup_environment(); - return err; -} diff --git a/tools/testing/selftests/bpf/test_sock_addr.sh b/tools/testing/selftests/bpf/test_sock_addr.sh deleted file mode 100755 index 3b9fdb8094aa..000000000000 --- a/tools/testing/selftests/bpf/test_sock_addr.sh +++ /dev/null @@ -1,58 +0,0 @@ -#!/bin/sh - -set -eu - -ping_once() -{ - type ping${1} >/dev/null 2>&1 && PING="ping${1}" || PING="ping -${1}" - $PING -q -c 1 -W 1 ${2%%/*} >/dev/null 2>&1 -} - -wait_for_ip() -{ - local _i - echo -n "Wait for testing IPv4/IPv6 to become available " - for _i in $(seq ${MAX_PING_TRIES}); do - echo -n "." - if ping_once 4 ${TEST_IPv4} && ping_once 6 ${TEST_IPv6}; then - echo " OK" - return - fi - done - echo 1>&2 "ERROR: Timeout waiting for test IP to become available." - exit 1 -} - -setup() -{ - # Create testing interfaces not to interfere with current environment. - ip link add dev ${TEST_IF} type veth peer name ${TEST_IF_PEER} - ip link set ${TEST_IF} up - ip link set ${TEST_IF_PEER} up - - ip -4 addr add ${TEST_IPv4} dev ${TEST_IF} - ip -6 addr add ${TEST_IPv6} dev ${TEST_IF} - wait_for_ip -} - -cleanup() -{ - ip link del ${TEST_IF} 2>/dev/null || : - ip link del ${TEST_IF_PEER} 2>/dev/null || : -} - -main() -{ - trap cleanup EXIT 2 3 6 15 - setup - ./test_sock_addr setup_done -} - -BASENAME=$(basename $0 .sh) -TEST_IF="${BASENAME}1" -TEST_IF_PEER="${BASENAME}2" -TEST_IPv4="127.0.0.4/8" -TEST_IPv6="::6/128" -MAX_PING_TRIES=5 - -main diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c index 024a0faafb3b..92752f5eeded 100644 --- a/tools/testing/selftests/bpf/test_sockmap.c +++ b/tools/testing/selftests/bpf/test_sockmap.c @@ -1887,10 +1887,13 @@ static int check_whitelist(struct _test *t, struct sockmap_options *opt) while (entry) { if ((opt->prepend && strstr(opt->prepend, entry) != 0) || strstr(opt->map, entry) != 0 || - strstr(t->title, entry) != 0) + strstr(t->title, entry) != 0) { + free(ptr); return 0; + } entry = strtok(NULL, ","); } + free(ptr); return -EINVAL; } @@ -1907,10 +1910,13 @@ static int check_blacklist(struct _test *t, struct sockmap_options *opt) while (entry) { if ((opt->prepend && strstr(opt->prepend, entry) != 0) || strstr(opt->map, entry) != 0 || - strstr(t->title, entry) != 0) + strstr(t->title, entry) != 0) { + free(ptr); return 0; + } entry = strtok(NULL, ","); } + free(ptr); return -EINVAL; } @@ -2104,9 +2110,9 @@ out: free(options.whitelist); if (options.blacklist) free(options.blacklist); + close(cg_fd); if (cg_created) cleanup_cgroup_environment(); - close(cg_fd); return err; } diff --git a/tools/testing/selftests/bpf/test_tc_tunnel.sh b/tools/testing/selftests/bpf/test_tc_tunnel.sh index 910044f08908..7989ec608454 100755 --- a/tools/testing/selftests/bpf/test_tc_tunnel.sh +++ b/tools/testing/selftests/bpf/test_tc_tunnel.sh @@ -72,7 +72,6 @@ cleanup() { server_listen() { ip netns exec "${ns2}" nc "${netcat_opt}" -l "${port}" > "${outfile}" & server_pid=$! - sleep 0.2 } client_connect() { @@ -93,6 +92,16 @@ verify_data() { fi } +wait_for_port() { + for i in $(seq 20); do + if ip netns exec "${ns2}" ss ${2:--4}OHntl | grep -q "$1"; then + return 0 + fi + sleep 0.1 + done + return 1 +} + set -e # no arguments: automated test, run all @@ -193,6 +202,7 @@ setup # basic communication works echo "test basic connectivity" server_listen +wait_for_port ${port} ${netcat_opt} client_connect verify_data @@ -204,6 +214,7 @@ ip netns exec "${ns1}" tc filter add dev veth1 egress \ section "encap_${tuntype}_${mac}" echo "test bpf encap without decap (expect failure)" server_listen +wait_for_port ${port} ${netcat_opt} ! client_connect if [[ "$tuntype" =~ "udp" ]]; then diff --git a/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c b/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c index 32df93747095..7b5fc98838cd 100644 --- a/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c +++ b/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c @@ -16,68 +16,7 @@ #include <bpf/libbpf.h> #include "cgroup_helpers.h" - -static int start_server(const struct sockaddr *addr, socklen_t len, bool dual) -{ - int mode = !dual; - int fd; - - fd = socket(addr->sa_family, SOCK_STREAM, 0); - if (fd == -1) { - log_err("Failed to create server socket"); - goto out; - } - - if (addr->sa_family == AF_INET6) { - if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&mode, - sizeof(mode)) == -1) { - log_err("Failed to set the dual-stack mode"); - goto close_out; - } - } - - if (bind(fd, addr, len) == -1) { - log_err("Failed to bind server socket"); - goto close_out; - } - - if (listen(fd, 128) == -1) { - log_err("Failed to listen on server socket"); - goto close_out; - } - - goto out; - -close_out: - close(fd); - fd = -1; -out: - return fd; -} - -static int connect_to_server(const struct sockaddr *addr, socklen_t len) -{ - int fd = -1; - - fd = socket(addr->sa_family, SOCK_STREAM, 0); - if (fd == -1) { - log_err("Failed to create client socket"); - goto out; - } - - if (connect(fd, (const struct sockaddr *)addr, len) == -1) { - log_err("Fail to connect to server"); - goto close_out; - } - - goto out; - -close_out: - close(fd); - fd = -1; -out: - return fd; -} +#include "network_helpers.h" static int get_map_fd_by_prog_id(int prog_id, bool *xdp) { @@ -117,8 +56,7 @@ err: return map_fd; } -static int run_test(int server_fd, int results_fd, bool xdp, - const struct sockaddr *addr, socklen_t len) +static int run_test(int server_fd, int results_fd, bool xdp) { int client = -1, srv_client = -1; int ret = 0; @@ -144,7 +82,7 @@ static int run_test(int server_fd, int results_fd, bool xdp, goto err; } - client = connect_to_server(addr, len); + client = connect_to_fd(server_fd, 0); if (client == -1) goto err; @@ -201,23 +139,23 @@ out: return ret; } -static bool get_port(int server_fd, in_port_t *port) +static int v6only_true(int fd, const struct post_socket_opts *opts) { - struct sockaddr_in addr; - socklen_t len = sizeof(addr); + int mode = true; - if (getsockname(server_fd, (struct sockaddr *)&addr, &len)) { - log_err("Failed to get server addr"); - return false; - } + return setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &mode, sizeof(mode)); +} + +static int v6only_false(int fd, const struct post_socket_opts *opts) +{ + int mode = false; - /* sin_port and sin6_port are located at the same offset. */ - *port = addr.sin_port; - return true; + return setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &mode, sizeof(mode)); } int main(int argc, char **argv) { + struct network_helper_opts opts = { 0 }; struct sockaddr_in addr4; struct sockaddr_in6 addr6; struct sockaddr_in addr4dual; @@ -259,31 +197,30 @@ int main(int argc, char **argv) addr6dual.sin6_addr = in6addr_any; addr6dual.sin6_port = 0; - server = start_server((const struct sockaddr *)&addr4, sizeof(addr4), - false); - if (server == -1 || !get_port(server, &addr4.sin_port)) + server = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr4, + sizeof(addr4), NULL); + if (server == -1) goto err; - server_v6 = start_server((const struct sockaddr *)&addr6, - sizeof(addr6), false); - if (server_v6 == -1 || !get_port(server_v6, &addr6.sin6_port)) + opts.post_socket_cb = v6only_true; + server_v6 = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr6, + sizeof(addr6), &opts); + if (server_v6 == -1) goto err; - server_dual = start_server((const struct sockaddr *)&addr6dual, - sizeof(addr6dual), true); - if (server_dual == -1 || !get_port(server_dual, &addr4dual.sin_port)) + opts.post_socket_cb = v6only_false; + server_dual = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr6dual, + sizeof(addr6dual), &opts); + if (server_dual == -1) goto err; - if (run_test(server, results, xdp, - (const struct sockaddr *)&addr4, sizeof(addr4))) + if (run_test(server, results, xdp)) goto err; - if (run_test(server_v6, results, xdp, - (const struct sockaddr *)&addr6, sizeof(addr6))) + if (run_test(server_v6, results, xdp)) goto err; - if (run_test(server_dual, results, xdp, - (const struct sockaddr *)&addr4dual, sizeof(addr4dual))) + if (run_test(server_dual, results, xdp)) goto err; printf("ok\n"); diff --git a/tools/testing/selftests/bpf/testing_helpers.c b/tools/testing/selftests/bpf/testing_helpers.c index 28b6646662af..d5379a0e6da8 100644 --- a/tools/testing/selftests/bpf/testing_helpers.c +++ b/tools/testing/selftests/bpf/testing_helpers.c @@ -368,9 +368,23 @@ int delete_module(const char *name, int flags) int unload_bpf_testmod(bool verbose) { + int ret, cnt = 0; + if (kern_sync_rcu()) fprintf(stdout, "Failed to trigger kernel-side RCU sync!\n"); - if (delete_module("bpf_testmod", 0)) { + + for (;;) { + ret = delete_module("bpf_testmod", 0); + if (!ret || errno != EAGAIN) + break; + if (++cnt > 10000) { + fprintf(stdout, "Unload of bpf_testmod timed out\n"); + break; + } + usleep(100); + } + + if (ret) { if (errno == ENOENT) { if (verbose) fprintf(stdout, "bpf_testmod.ko is already unloaded.\n"); diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c index 27fd7ed3e4b0..70e29f316fe7 100644 --- a/tools/testing/selftests/bpf/trace_helpers.c +++ b/tools/testing/selftests/bpf/trace_helpers.c @@ -61,12 +61,7 @@ void free_kallsyms_local(struct ksyms *ksyms) free(ksyms); } -static int ksym_cmp(const void *p1, const void *p2) -{ - return ((struct ksym *)p1)->addr - ((struct ksym *)p2)->addr; -} - -struct ksyms *load_kallsyms_local(void) +static struct ksyms *load_kallsyms_local_common(ksym_cmp_t cmp_cb) { FILE *f; char func[256], buf[256]; @@ -100,7 +95,7 @@ struct ksyms *load_kallsyms_local(void) goto error; } fclose(f); - qsort(ksyms->syms, ksyms->sym_cnt, sizeof(struct ksym), ksym_cmp); + qsort(ksyms->syms, ksyms->sym_cnt, sizeof(struct ksym), cmp_cb); return ksyms; error: @@ -109,6 +104,21 @@ error: return NULL; } +static int ksym_cmp(const void *p1, const void *p2) +{ + return ((struct ksym *)p1)->addr - ((struct ksym *)p2)->addr; +} + +struct ksyms *load_kallsyms_local(void) +{ + return load_kallsyms_local_common(ksym_cmp); +} + +struct ksyms *load_kallsyms_custom_local(ksym_cmp_t cmp_cb) +{ + return load_kallsyms_local_common(cmp_cb); +} + int load_kallsyms(void) { pthread_mutex_lock(&ksyms_mutex); @@ -148,6 +158,28 @@ struct ksym *ksym_search_local(struct ksyms *ksyms, long key) return &ksyms->syms[0]; } +struct ksym *search_kallsyms_custom_local(struct ksyms *ksyms, const void *p, + ksym_search_cmp_t cmp_cb) +{ + int start = 0, mid, end = ksyms->sym_cnt; + struct ksym *ks; + int result; + + while (start < end) { + mid = start + (end - start) / 2; + ks = &ksyms->syms[mid]; + result = cmp_cb(p, ks); + if (result < 0) + end = mid; + else if (result > 0) + start = mid + 1; + else + return ks; + } + + return NULL; +} + struct ksym *ksym_search(long key) { if (!ksyms) @@ -201,29 +233,6 @@ out: return err; } -void read_trace_pipe(void) -{ - int trace_fd; - - if (access(TRACEFS_PIPE, F_OK) == 0) - trace_fd = open(TRACEFS_PIPE, O_RDONLY, 0); - else - trace_fd = open(DEBUGFS_PIPE, O_RDONLY, 0); - if (trace_fd < 0) - return; - - while (1) { - static char buf[4096]; - ssize_t sz; - - sz = read(trace_fd, buf, sizeof(buf) - 1); - if (sz > 0) { - buf[sz] = 0; - puts(buf); - } - } -} - ssize_t get_uprobe_offset(const void *addr) { size_t start, end, base; @@ -381,3 +390,43 @@ out: close(fd); return err; } + +int read_trace_pipe_iter(void (*cb)(const char *str, void *data), void *data, int iter) +{ + size_t buflen, n; + char *buf = NULL; + FILE *fp = NULL; + + if (access(TRACEFS_PIPE, F_OK) == 0) + fp = fopen(TRACEFS_PIPE, "r"); + else + fp = fopen(DEBUGFS_PIPE, "r"); + if (!fp) + return -1; + + /* We do not want to wait forever when iter is specified. */ + if (iter) + fcntl(fileno(fp), F_SETFL, O_NONBLOCK); + + while ((n = getline(&buf, &buflen, fp) >= 0) || errno == EAGAIN) { + if (n > 0) + cb(buf, data); + if (iter && !(--iter)) + break; + } + + free(buf); + if (fp) + fclose(fp); + return 0; +} + +static void trace_pipe_cb(const char *str, void *data) +{ + printf("%s", str); +} + +void read_trace_pipe(void) +{ + read_trace_pipe_iter(trace_pipe_cb, NULL, 0); +} diff --git a/tools/testing/selftests/bpf/trace_helpers.h b/tools/testing/selftests/bpf/trace_helpers.h index 04fd1da7079d..2ce873c9f9aa 100644 --- a/tools/testing/selftests/bpf/trace_helpers.h +++ b/tools/testing/selftests/bpf/trace_helpers.h @@ -13,6 +13,9 @@ struct ksym { }; struct ksyms; +typedef int (*ksym_cmp_t)(const void *p1, const void *p2); +typedef int (*ksym_search_cmp_t)(const void *p1, const struct ksym *p2); + int load_kallsyms(void); struct ksym *ksym_search(long key); long ksym_get_addr(const char *name); @@ -22,10 +25,16 @@ struct ksym *ksym_search_local(struct ksyms *ksyms, long key); long ksym_get_addr_local(struct ksyms *ksyms, const char *name); void free_kallsyms_local(struct ksyms *ksyms); +struct ksyms *load_kallsyms_custom_local(ksym_cmp_t cmp_cb); +struct ksym *search_kallsyms_custom_local(struct ksyms *ksyms, const void *p1, + ksym_search_cmp_t cmp_cb); + /* open kallsyms and find addresses on the fly, faster than load + search. */ int kallsyms_find(const char *sym, unsigned long long *addr); void read_trace_pipe(void); +int read_trace_pipe_iter(void (*cb)(const char *str, void *data), + void *data, int iter); ssize_t get_uprobe_offset(const void *addr); ssize_t get_rel_offset(uintptr_t addr); diff --git a/tools/testing/selftests/bpf/uprobe_multi.c b/tools/testing/selftests/bpf/uprobe_multi.c index a61ceab60b68..7ffa563ffeba 100644 --- a/tools/testing/selftests/bpf/uprobe_multi.c +++ b/tools/testing/selftests/bpf/uprobe_multi.c @@ -9,7 +9,7 @@ #define NAME(name, idx) PASTE(name, idx) -#define DEF(name, idx) int NAME(name, idx)(void) { return 0; } +#define DEF(name, idx) int __attribute__((weak)) NAME(name, idx)(void) { return 0; } #define CALL(name, idx) NAME(name, idx)(); #define F(body, name, idx) body(name, idx) diff --git a/tools/testing/selftests/bpf/veristat.c b/tools/testing/selftests/bpf/veristat.c index 244d4996e06e..b2854238d4a0 100644 --- a/tools/testing/selftests/bpf/veristat.c +++ b/tools/testing/selftests/bpf/veristat.c @@ -792,10 +792,13 @@ static int parse_stats(const char *stats_str, struct stat_specs *specs) while ((next = strtok_r(state ? NULL : input, ",", &state))) { err = parse_stat(next, specs); - if (err) + if (err) { + free(input); return err; + } } + free(input); return 0; } diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/selftests/bpf/xdp_hw_metadata.c index bdf5d8180067..6f9956eed797 100644 --- a/tools/testing/selftests/bpf/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c @@ -495,20 +495,6 @@ peek: return 0; } -struct ethtool_channels { - __u32 cmd; - __u32 max_rx; - __u32 max_tx; - __u32 max_other; - __u32 max_combined; - __u32 rx_count; - __u32 tx_count; - __u32 other_count; - __u32 combined_count; -}; - -#define ETHTOOL_GCHANNELS 0x0000003c /* Get no of channels */ - static int rxq_num(const char *ifname) { struct ethtool_channels ch = { @@ -595,6 +581,8 @@ static void cleanup(void) if (bpf_obj) xdp_hw_metadata__destroy(bpf_obj); + + free((void *)saved_hwtstamp_ifname); } static void handle_signal(int sig) diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index b1102ee13faa..2eac0895b0a1 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -81,6 +81,7 @@ #include <linux/mman.h> #include <linux/netdev.h> #include <linux/bitmap.h> +#include <linux/ethtool.h> #include <arpa/inet.h> #include <net/if.h> #include <locale.h> @@ -105,11 +106,15 @@ #include "../kselftest.h" #include "xsk_xdp_common.h" +#include <network_helpers.h> + static bool opt_verbose; static bool opt_print_tests; static enum test_mode opt_mode = TEST_MODE_ALL; static u32 opt_run_test = RUN_ALL_TESTS; +void test__fail(void) { /* for network_helpers.c */ } + static void __exit_with_error(int error, const char *file, const char *func, int line) { ksft_test_result_fail("[%s:%s:%i]: ERROR: %d/\"%s\"\n", file, func, line, error, @@ -239,7 +244,7 @@ static void enable_busy_poll(struct xsk_socket_info *xsk) (void *)&sock_opt, sizeof(sock_opt)) < 0) exit_with_error(errno); - sock_opt = BATCH_SIZE; + sock_opt = xsk->batch_size; if (setsockopt(xsk_socket__fd(xsk->xsk), SOL_SOCKET, SO_BUSY_POLL_BUDGET, (void *)&sock_opt, sizeof(sock_opt)) < 0) exit_with_error(errno); @@ -409,6 +414,33 @@ static void parse_command_line(struct ifobject *ifobj_tx, struct ifobject *ifobj } } +static int set_ring_size(struct ifobject *ifobj) +{ + int ret; + u32 ctr = 0; + + while (ctr++ < SOCK_RECONF_CTR) { + ret = set_hw_ring_size(ifobj->ifname, &ifobj->ring); + if (!ret) + break; + + /* Retry if it fails */ + if (ctr >= SOCK_RECONF_CTR || errno != EBUSY) + return -errno; + + usleep(USLEEP_MAX); + } + + return ret; +} + +static int hw_ring_size_reset(struct ifobject *ifobj) +{ + ifobj->ring.tx_pending = ifobj->set_ring.default_tx; + ifobj->ring.rx_pending = ifobj->set_ring.default_rx; + return set_ring_size(ifobj); +} + static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, struct ifobject *ifobj_rx) { @@ -439,6 +471,7 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, for (j = 0; j < MAX_SOCKETS; j++) { memset(&ifobj->xsk_arr[j], 0, sizeof(ifobj->xsk_arr[j])); ifobj->xsk_arr[j].rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS; + ifobj->xsk_arr[j].batch_size = DEFAULT_BATCH_SIZE; if (i == 0) ifobj->xsk_arr[j].pkt_stream = test->tx_pkt_stream_default; else @@ -451,12 +484,16 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, } } + if (ifobj_tx->hw_ring_size_supp) + hw_ring_size_reset(ifobj_tx); + test->ifobj_tx = ifobj_tx; test->ifobj_rx = ifobj_rx; test->current_step = 0; test->total_steps = 1; test->nb_sockets = 1; test->fail = false; + test->set_ring = false; test->mtu = MAX_ETH_PKT_SIZE; test->xdp_prog_rx = ifobj_rx->xdp_progs->progs.xsk_def_prog; test->xskmap_rx = ifobj_rx->xdp_progs->maps.xsk; @@ -1087,7 +1124,7 @@ static int __receive_pkts(struct test_spec *test, struct xsk_socket_info *xsk) return TEST_CONTINUE; } - rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx); + rcvd = xsk_ring_cons__peek(&xsk->rx, xsk->batch_size, &idx_rx); if (!rcvd) return TEST_CONTINUE; @@ -1239,7 +1276,8 @@ static int __send_pkts(struct ifobject *ifobject, struct xsk_socket_info *xsk, b buffer_len = pkt_get_buffer_len(umem, pkt_stream->max_pkt_len); /* pkts_in_flight might be negative if many invalid packets are sent */ - if (pkts_in_flight >= (int)((umem_size(umem) - BATCH_SIZE * buffer_len) / buffer_len)) { + if (pkts_in_flight >= (int)((umem_size(umem) - xsk->batch_size * buffer_len) / + buffer_len)) { ret = kick_tx(xsk); if (ret) return TEST_FAILURE; @@ -1249,7 +1287,7 @@ static int __send_pkts(struct ifobject *ifobject, struct xsk_socket_info *xsk, b fds.fd = xsk_socket__fd(xsk->xsk); fds.events = POLLOUT; - while (xsk_ring_prod__reserve(&xsk->tx, BATCH_SIZE, &idx) < BATCH_SIZE) { + while (xsk_ring_prod__reserve(&xsk->tx, xsk->batch_size, &idx) < xsk->batch_size) { if (use_poll) { ret = poll(&fds, 1, POLL_TMOUT); if (timeout) { @@ -1269,10 +1307,10 @@ static int __send_pkts(struct ifobject *ifobject, struct xsk_socket_info *xsk, b } } - complete_pkts(xsk, BATCH_SIZE); + complete_pkts(xsk, xsk->batch_size); } - for (i = 0; i < BATCH_SIZE; i++) { + for (i = 0; i < xsk->batch_size; i++) { struct pkt *pkt = pkt_stream_get_next_tx_pkt(pkt_stream); u32 nb_frags_left, nb_frags, bytes_written = 0; @@ -1280,9 +1318,9 @@ static int __send_pkts(struct ifobject *ifobject, struct xsk_socket_info *xsk, b break; nb_frags = pkt_nb_frags(umem->frame_size, pkt_stream, pkt); - if (nb_frags > BATCH_SIZE - i) { + if (nb_frags > xsk->batch_size - i) { pkt_stream_cancel(pkt_stream); - xsk_ring_prod__cancel(&xsk->tx, BATCH_SIZE - i); + xsk_ring_prod__cancel(&xsk->tx, xsk->batch_size - i); break; } nb_frags_left = nb_frags; @@ -1370,7 +1408,7 @@ static int wait_for_tx_completion(struct xsk_socket_info *xsk) return TEST_FAILURE; } - complete_pkts(xsk, BATCH_SIZE); + complete_pkts(xsk, xsk->batch_size); } return TEST_PASS; @@ -1860,6 +1898,14 @@ static int testapp_validate_traffic(struct test_spec *test) return TEST_SKIP; } + if (test->set_ring) { + if (ifobj_tx->hw_ring_size_supp) + return set_ring_size(ifobj_tx); + + ksft_test_result_skip("Changing HW ring size not supported.\n"); + return TEST_SKIP; + } + xsk_attach_xdp_progs(test, ifobj_rx, ifobj_tx); return __testapp_validate_traffic(test, ifobj_rx, ifobj_tx); } @@ -2373,6 +2419,50 @@ static int testapp_xdp_metadata_mb(struct test_spec *test) return testapp_xdp_metadata_copy(test); } +static int testapp_hw_sw_min_ring_size(struct test_spec *test) +{ + int ret; + + test->set_ring = true; + test->total_steps = 2; + test->ifobj_tx->ring.tx_pending = DEFAULT_BATCH_SIZE; + test->ifobj_tx->ring.rx_pending = DEFAULT_BATCH_SIZE * 2; + test->ifobj_tx->xsk->batch_size = 1; + test->ifobj_rx->xsk->batch_size = 1; + ret = testapp_validate_traffic(test); + if (ret) + return ret; + + /* Set batch size to hw_ring_size - 1 */ + test->ifobj_tx->xsk->batch_size = DEFAULT_BATCH_SIZE - 1; + test->ifobj_rx->xsk->batch_size = DEFAULT_BATCH_SIZE - 1; + return testapp_validate_traffic(test); +} + +static int testapp_hw_sw_max_ring_size(struct test_spec *test) +{ + u32 max_descs = XSK_RING_PROD__DEFAULT_NUM_DESCS * 2; + int ret; + + test->set_ring = true; + test->total_steps = 2; + test->ifobj_tx->ring.tx_pending = test->ifobj_tx->ring.tx_max_pending; + test->ifobj_tx->ring.rx_pending = test->ifobj_tx->ring.rx_max_pending; + test->ifobj_rx->umem->num_frames = max_descs; + test->ifobj_rx->xsk->rxqsize = max_descs; + test->ifobj_tx->xsk->batch_size = XSK_RING_PROD__DEFAULT_NUM_DESCS; + test->ifobj_rx->xsk->batch_size = XSK_RING_PROD__DEFAULT_NUM_DESCS; + + ret = testapp_validate_traffic(test); + if (ret) + return ret; + + /* Set batch_size to 4095 */ + test->ifobj_tx->xsk->batch_size = max_descs - 1; + test->ifobj_rx->xsk->batch_size = max_descs - 1; + return testapp_validate_traffic(test); +} + static void run_pkt_test(struct test_spec *test) { int ret; @@ -2477,7 +2567,9 @@ static const struct test_spec tests[] = { {.name = "ALIGNED_INV_DESC_MULTI_BUFF", .test_func = testapp_aligned_inv_desc_mb}, {.name = "UNALIGNED_INV_DESC_MULTI_BUFF", .test_func = testapp_unaligned_inv_desc_mb}, {.name = "TOO_MANY_FRAGS", .test_func = testapp_too_many_frags}, -}; + {.name = "HW_SW_MIN_RING_SIZE", .test_func = testapp_hw_sw_min_ring_size}, + {.name = "HW_SW_MAX_RING_SIZE", .test_func = testapp_hw_sw_max_ring_size}, + }; static void print_tests(void) { @@ -2497,6 +2589,7 @@ int main(int argc, char **argv) int modes = TEST_MODE_SKB + 1; struct test_spec test; bool shared_netdev; + int ret; /* Use libbpf 1.0 API mode */ libbpf_set_strict_mode(LIBBPF_STRICT_ALL); @@ -2534,6 +2627,13 @@ int main(int argc, char **argv) modes++; } + ret = get_hw_ring_size(ifobj_tx->ifname, &ifobj_tx->ring); + if (!ret) { + ifobj_tx->hw_ring_size_supp = true; + ifobj_tx->set_ring.default_tx = ifobj_tx->ring.tx_pending; + ifobj_tx->set_ring.default_rx = ifobj_tx->ring.rx_pending; + } + init_iface(ifobj_rx, worker_testapp_validate_rx); init_iface(ifobj_tx, worker_testapp_validate_tx); @@ -2581,6 +2681,9 @@ int main(int argc, char **argv) } } + if (ifobj_tx->hw_ring_size_supp) + hw_ring_size_reset(ifobj_tx); + pkt_stream_delete(tx_pkt_stream_default); pkt_stream_delete(rx_pkt_stream_default); xsk_unload_xdp_programs(ifobj_tx); diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h index f174df2d693f..906de5fab7a3 100644 --- a/tools/testing/selftests/bpf/xskxceiver.h +++ b/tools/testing/selftests/bpf/xskxceiver.h @@ -44,7 +44,7 @@ #define MAX_ETH_JUMBO_SIZE 9000 #define USLEEP_MAX 10000 #define SOCK_RECONF_CTR 10 -#define BATCH_SIZE 64 +#define DEFAULT_BATCH_SIZE 64 #define POLL_TMOUT 1000 #define THREAD_TMOUT 3 #define DEFAULT_PKT_CNT (4 * 1024) @@ -91,6 +91,7 @@ struct xsk_socket_info { struct pkt_stream *pkt_stream; u32 outstanding_tx; u32 rxqsize; + u32 batch_size; u8 dst_mac[ETH_ALEN]; u8 src_mac[ETH_ALEN]; }; @@ -113,6 +114,11 @@ struct pkt_stream { bool verbatim; }; +struct set_hw_ring { + u32 default_tx; + u32 default_rx; +}; + struct ifobject; struct test_spec; typedef int (*validation_func_t)(struct ifobject *ifobj); @@ -129,6 +135,8 @@ struct ifobject { struct xsk_xdp_progs *xdp_progs; struct bpf_map *xskmap; struct bpf_program *xdp_prog; + struct ethtool_ringparam ring; + struct set_hw_ring set_ring; enum test_mode mode; int ifindex; int mtu; @@ -145,6 +153,7 @@ struct ifobject { bool unaligned_supp; bool multi_buff_supp; bool multi_buff_zc_supp; + bool hw_ring_size_supp; }; struct test_spec { @@ -162,6 +171,7 @@ struct test_spec { u16 current_step; u16 nb_sockets; bool fail; + bool set_ring; enum test_mode mode; char name[MAX_TEST_NAME_SIZE]; }; |