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-rw-r--r--tools/testing/selftests/bpf/progs/verifier_helper_restricted.c279
1 files changed, 279 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c b/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c
new file mode 100644
index 000000000000..0ede0ccd090c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c
@@ -0,0 +1,279 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/helper_restricted.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct val {
+ int cnt;
+ struct bpf_spin_lock l;
+};
+
+struct {
+ __uint(type, BPF_MAP_TYPE_ARRAY);
+ __uint(max_entries, 1);
+ __type(key, int);
+ __type(value, struct val);
+} map_spin_lock SEC(".maps");
+
+struct timer {
+ struct bpf_timer t;
+};
+
+struct {
+ __uint(type, BPF_MAP_TYPE_ARRAY);
+ __uint(max_entries, 1);
+ __type(key, int);
+ __type(value, struct timer);
+} map_timer SEC(".maps");
+
+SEC("kprobe")
+__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_KPROBE")
+__failure __msg("unknown func bpf_ktime_get_coarse_ns")
+__naked void in_bpf_prog_type_kprobe_1(void)
+{
+ asm volatile (" \
+ call %[bpf_ktime_get_coarse_ns]; \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_ktime_get_coarse_ns)
+ : __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_TRACEPOINT")
+__failure __msg("unknown func bpf_ktime_get_coarse_ns")
+__naked void in_bpf_prog_type_tracepoint_1(void)
+{
+ asm volatile (" \
+ call %[bpf_ktime_get_coarse_ns]; \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_ktime_get_coarse_ns)
+ : __clobber_all);
+}
+
+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")
+__naked void bpf_prog_type_perf_event_1(void)
+{
+ asm volatile (" \
+ call %[bpf_ktime_get_coarse_ns]; \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_ktime_get_coarse_ns)
+ : __clobber_all);
+}
+
+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")
+__naked void bpf_prog_type_raw_tracepoint_1(void)
+{
+ asm volatile (" \
+ call %[bpf_ktime_get_coarse_ns]; \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm(bpf_ktime_get_coarse_ns)
+ : __clobber_all);
+}
+
+SEC("kprobe")
+__description("bpf_timer_init isn restricted in BPF_PROG_TYPE_KPROBE")
+__failure __msg("tracing progs cannot use bpf_timer yet")
+__naked void in_bpf_prog_type_kprobe_2(void)
+{
+ asm volatile (" \
+ r2 = r10; \
+ r2 += -8; \
+ r1 = 0; \
+ *(u64*)(r2 + 0) = r1; \
+ r1 = %[map_timer] ll; \
+ call %[bpf_map_lookup_elem]; \
+ if r0 == 0 goto l0_%=; \
+ r1 = r0; \
+ r2 = %[map_timer] ll; \
+ r3 = 1; \
+l0_%=: call %[bpf_timer_init]; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm(bpf_timer_init),
+ __imm_addr(map_timer)
+ : __clobber_all);
+}
+
+SEC("perf_event")
+__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_PERF_EVENT")
+__failure __msg("tracing progs cannot use bpf_timer yet")
+__naked void bpf_prog_type_perf_event_2(void)
+{
+ asm volatile (" \
+ r2 = r10; \
+ r2 += -8; \
+ r1 = 0; \
+ *(u64*)(r2 + 0) = r1; \
+ r1 = %[map_timer] ll; \
+ call %[bpf_map_lookup_elem]; \
+ if r0 == 0 goto l0_%=; \
+ r1 = r0; \
+ r2 = %[map_timer] ll; \
+ r3 = 1; \
+l0_%=: call %[bpf_timer_init]; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm(bpf_timer_init),
+ __imm_addr(map_timer)
+ : __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_TRACEPOINT")
+__failure __msg("tracing progs cannot use bpf_timer yet")
+__naked void in_bpf_prog_type_tracepoint_2(void)
+{
+ asm volatile (" \
+ r2 = r10; \
+ r2 += -8; \
+ r1 = 0; \
+ *(u64*)(r2 + 0) = r1; \
+ r1 = %[map_timer] ll; \
+ call %[bpf_map_lookup_elem]; \
+ if r0 == 0 goto l0_%=; \
+ r1 = r0; \
+ r2 = %[map_timer] ll; \
+ r3 = 1; \
+l0_%=: call %[bpf_timer_init]; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm(bpf_timer_init),
+ __imm_addr(map_timer)
+ : __clobber_all);
+}
+
+SEC("raw_tracepoint")
+__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT")
+__failure __msg("tracing progs cannot use bpf_timer yet")
+__naked void bpf_prog_type_raw_tracepoint_2(void)
+{
+ asm volatile (" \
+ r2 = r10; \
+ r2 += -8; \
+ r1 = 0; \
+ *(u64*)(r2 + 0) = r1; \
+ r1 = %[map_timer] ll; \
+ call %[bpf_map_lookup_elem]; \
+ if r0 == 0 goto l0_%=; \
+ r1 = r0; \
+ r2 = %[map_timer] ll; \
+ r3 = 1; \
+l0_%=: call %[bpf_timer_init]; \
+ exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm(bpf_timer_init),
+ __imm_addr(map_timer)
+ : __clobber_all);
+}
+
+SEC("kprobe")
+__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_KPROBE")
+__failure __msg("tracing progs cannot use bpf_spin_lock yet")
+__naked void in_bpf_prog_type_kprobe_3(void)
+{
+ asm volatile (" \
+ r2 = r10; \
+ r2 += -8; \
+ r1 = 0; \
+ *(u64*)(r2 + 0) = r1; \
+ r1 = %[map_spin_lock] ll; \
+ call %[bpf_map_lookup_elem]; \
+ if r0 == 0 goto l0_%=; \
+ r1 = r0; \
+ call %[bpf_spin_lock]; \
+l0_%=: exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm(bpf_spin_lock),
+ __imm_addr(map_spin_lock)
+ : __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_TRACEPOINT")
+__failure __msg("tracing progs cannot use bpf_spin_lock yet")
+__naked void in_bpf_prog_type_tracepoint_3(void)
+{
+ asm volatile (" \
+ r2 = r10; \
+ r2 += -8; \
+ r1 = 0; \
+ *(u64*)(r2 + 0) = r1; \
+ r1 = %[map_spin_lock] ll; \
+ call %[bpf_map_lookup_elem]; \
+ if r0 == 0 goto l0_%=; \
+ r1 = r0; \
+ call %[bpf_spin_lock]; \
+l0_%=: exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm(bpf_spin_lock),
+ __imm_addr(map_spin_lock)
+ : __clobber_all);
+}
+
+SEC("perf_event")
+__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_PERF_EVENT")
+__failure __msg("tracing progs cannot use bpf_spin_lock yet")
+__naked void bpf_prog_type_perf_event_3(void)
+{
+ asm volatile (" \
+ r2 = r10; \
+ r2 += -8; \
+ r1 = 0; \
+ *(u64*)(r2 + 0) = r1; \
+ r1 = %[map_spin_lock] ll; \
+ call %[bpf_map_lookup_elem]; \
+ if r0 == 0 goto l0_%=; \
+ r1 = r0; \
+ call %[bpf_spin_lock]; \
+l0_%=: exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm(bpf_spin_lock),
+ __imm_addr(map_spin_lock)
+ : __clobber_all);
+}
+
+SEC("raw_tracepoint")
+__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT")
+__failure __msg("tracing progs cannot use bpf_spin_lock yet")
+__naked void bpf_prog_type_raw_tracepoint_3(void)
+{
+ asm volatile (" \
+ r2 = r10; \
+ r2 += -8; \
+ r1 = 0; \
+ *(u64*)(r2 + 0) = r1; \
+ r1 = %[map_spin_lock] ll; \
+ call %[bpf_map_lookup_elem]; \
+ if r0 == 0 goto l0_%=; \
+ r1 = r0; \
+ call %[bpf_spin_lock]; \
+l0_%=: exit; \
+" :
+ : __imm(bpf_map_lookup_elem),
+ __imm(bpf_spin_lock),
+ __imm_addr(map_spin_lock)
+ : __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";