diff options
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/asm/barrier.h | 35 | ||||
| -rw-r--r-- | tools/include/linux/ring_buffer.h | 73 | ||||
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 168 | ||||
| -rw-r--r-- | tools/include/uapi/linux/if_link.h | 2 | ||||
| -rw-r--r-- | tools/include/uapi/linux/tls.h | 78 |
5 files changed, 354 insertions, 2 deletions
diff --git a/tools/include/asm/barrier.h b/tools/include/asm/barrier.h index 391d942536e5..8d378c57cb01 100644 --- a/tools/include/asm/barrier.h +++ b/tools/include/asm/barrier.h @@ -1,4 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ +#include <linux/compiler.h> #if defined(__i386__) || defined(__x86_64__) #include "../../arch/x86/include/asm/barrier.h" #elif defined(__arm__) @@ -26,3 +27,37 @@ #else #include <asm-generic/barrier.h> #endif + +/* + * Generic fallback smp_*() definitions for archs that haven't + * been updated yet. + */ + +#ifndef smp_rmb +# define smp_rmb() rmb() +#endif + +#ifndef smp_wmb +# define smp_wmb() wmb() +#endif + +#ifndef smp_mb +# define smp_mb() mb() +#endif + +#ifndef smp_store_release +# define smp_store_release(p, v) \ +do { \ + smp_mb(); \ + WRITE_ONCE(*p, v); \ +} while (0) +#endif + +#ifndef smp_load_acquire +# define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = READ_ONCE(*p); \ + smp_mb(); \ + ___p1; \ +}) +#endif diff --git a/tools/include/linux/ring_buffer.h b/tools/include/linux/ring_buffer.h new file mode 100644 index 000000000000..9a083ae60473 --- /dev/null +++ b/tools/include/linux/ring_buffer.h @@ -0,0 +1,73 @@ +#ifndef _TOOLS_LINUX_RING_BUFFER_H_ +#define _TOOLS_LINUX_RING_BUFFER_H_ + +#include <asm/barrier.h> + +/* + * Contract with kernel for walking the perf ring buffer from + * user space requires the following barrier pairing (quote + * from kernel/events/ring_buffer.c): + * + * Since the mmap() consumer (userspace) can run on a + * different CPU: + * + * kernel user + * + * if (LOAD ->data_tail) { LOAD ->data_head + * (A) smp_rmb() (C) + * STORE $data LOAD $data + * smp_wmb() (B) smp_mb() (D) + * STORE ->data_head STORE ->data_tail + * } + * + * Where A pairs with D, and B pairs with C. + * + * In our case A is a control dependency that separates the + * load of the ->data_tail and the stores of $data. In case + * ->data_tail indicates there is no room in the buffer to + * store $data we do not. + * + * D needs to be a full barrier since it separates the data + * READ from the tail WRITE. + * + * For B a WMB is sufficient since it separates two WRITEs, + * and for C an RMB is sufficient since it separates two READs. + * + * Note, instead of B, C, D we could also use smp_store_release() + * in B and D as well as smp_load_acquire() in C. + * + * However, this optimization does not make sense for all kernel + * supported architectures since for a fair number it would + * resolve into READ_ONCE() + smp_mb() pair for smp_load_acquire(), + * and smp_mb() + WRITE_ONCE() pair for smp_store_release(). + * + * Thus for those smp_wmb() in B and smp_rmb() in C would still + * be less expensive. For the case of D this has either the same + * cost or is less expensive, for example, due to TSO x86 can + * avoid the CPU barrier entirely. + */ + +static inline u64 ring_buffer_read_head(struct perf_event_mmap_page *base) +{ +/* + * Architectures where smp_load_acquire() does not fallback to + * READ_ONCE() + smp_mb() pair. + */ +#if defined(__x86_64__) || defined(__aarch64__) || defined(__powerpc64__) || \ + defined(__ia64__) || defined(__sparc__) && defined(__arch64__) + return smp_load_acquire(&base->data_head); +#else + u64 head = READ_ONCE(base->data_head); + + smp_rmb(); + return head; +#endif +} + +static inline void ring_buffer_write_tail(struct perf_event_mmap_page *base, + u64 tail) +{ + smp_store_release(&base->data_tail, tail); +} + +#endif /* _TOOLS_LINUX_RING_BUFFER_H_ */ diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index 66917a4eba27..852dc17ab47a 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -103,6 +103,7 @@ enum bpf_cmd { BPF_BTF_LOAD, BPF_BTF_GET_FD_BY_ID, BPF_TASK_FD_QUERY, + BPF_MAP_LOOKUP_AND_DELETE_ELEM, }; enum bpf_map_type { @@ -127,6 +128,9 @@ enum bpf_map_type { BPF_MAP_TYPE_SOCKHASH, BPF_MAP_TYPE_CGROUP_STORAGE, BPF_MAP_TYPE_REUSEPORT_SOCKARRAY, + BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE, + BPF_MAP_TYPE_QUEUE, + BPF_MAP_TYPE_STACK, }; enum bpf_prog_type { @@ -152,6 +156,7 @@ enum bpf_prog_type { BPF_PROG_TYPE_LWT_SEG6LOCAL, BPF_PROG_TYPE_LIRC_MODE2, BPF_PROG_TYPE_SK_REUSEPORT, + BPF_PROG_TYPE_FLOW_DISSECTOR, }; enum bpf_attach_type { @@ -172,6 +177,7 @@ enum bpf_attach_type { BPF_CGROUP_UDP4_SENDMSG, BPF_CGROUP_UDP6_SENDMSG, BPF_LIRC_MODE2, + BPF_FLOW_DISSECTOR, __MAX_BPF_ATTACH_TYPE }; @@ -459,6 +465,28 @@ union bpf_attr { * Return * 0 on success, or a negative error in case of failure. * + * int bpf_map_push_elem(struct bpf_map *map, const void *value, u64 flags) + * Description + * Push an element *value* in *map*. *flags* is one of: + * + * **BPF_EXIST** + * If the queue/stack is full, the oldest element is removed to + * make room for this. + * Return + * 0 on success, or a negative error in case of failure. + * + * int bpf_map_pop_elem(struct bpf_map *map, void *value) + * Description + * Pop an element from *map*. + * Return + * 0 on success, or a negative error in case of failure. + * + * int bpf_map_peek_elem(struct bpf_map *map, void *value) + * Description + * Get an element from *map* without removing it. + * Return + * 0 on success, or a negative error in case of failure. + * * int bpf_probe_read(void *dst, u32 size, const void *src) * Description * For tracing programs, safely attempt to read *size* bytes from @@ -1430,7 +1458,7 @@ union bpf_attr { * Return * 0 on success, or a negative error in case of failure. * - * int bpf_skb_adjust_room(struct sk_buff *skb, u32 len_diff, u32 mode, u64 flags) + * int bpf_skb_adjust_room(struct sk_buff *skb, s32 len_diff, u32 mode, u64 flags) * Description * Grow or shrink the room for data in the packet associated to * *skb* by *len_diff*, and according to the selected *mode*. @@ -2141,6 +2169,94 @@ union bpf_attr { * request in the skb. * Return * 0 on success, or a negative error in case of failure. + * + * struct bpf_sock *bpf_sk_lookup_tcp(void *ctx, struct bpf_sock_tuple *tuple, u32 tuple_size, u32 netns, u64 flags) + * Description + * Look for TCP socket matching *tuple*, optionally in a child + * network namespace *netns*. The return value must be checked, + * and if non-NULL, released via **bpf_sk_release**\ (). + * + * The *ctx* should point to the context of the program, such as + * the skb or socket (depending on the hook in use). This is used + * to determine the base network namespace for the lookup. + * + * *tuple_size* must be one of: + * + * **sizeof**\ (*tuple*\ **->ipv4**) + * Look for an IPv4 socket. + * **sizeof**\ (*tuple*\ **->ipv6**) + * Look for an IPv6 socket. + * + * If the *netns* is zero, then the socket lookup table in the + * netns associated with the *ctx* will be used. For the TC hooks, + * this in the netns of the device in the skb. For socket hooks, + * this in the netns of the socket. If *netns* is non-zero, then + * it specifies the ID of the netns relative to the netns + * associated with the *ctx*. + * + * All values for *flags* are reserved for future usage, and must + * be left at zero. + * + * This helper is available only if the kernel was compiled with + * **CONFIG_NET** configuration option. + * Return + * Pointer to *struct bpf_sock*, or NULL in case of failure. + * + * struct bpf_sock *bpf_sk_lookup_udp(void *ctx, struct bpf_sock_tuple *tuple, u32 tuple_size, u32 netns, u64 flags) + * Description + * Look for UDP socket matching *tuple*, optionally in a child + * network namespace *netns*. The return value must be checked, + * and if non-NULL, released via **bpf_sk_release**\ (). + * + * The *ctx* should point to the context of the program, such as + * the skb or socket (depending on the hook in use). This is used + * to determine the base network namespace for the lookup. + * + * *tuple_size* must be one of: + * + * **sizeof**\ (*tuple*\ **->ipv4**) + * Look for an IPv4 socket. + * **sizeof**\ (*tuple*\ **->ipv6**) + * Look for an IPv6 socket. + * + * If the *netns* is zero, then the socket lookup table in the + * netns associated with the *ctx* will be used. For the TC hooks, + * this in the netns of the device in the skb. For socket hooks, + * this in the netns of the socket. If *netns* is non-zero, then + * it specifies the ID of the netns relative to the netns + * associated with the *ctx*. + * + * All values for *flags* are reserved for future usage, and must + * be left at zero. + * + * This helper is available only if the kernel was compiled with + * **CONFIG_NET** configuration option. + * Return + * Pointer to *struct bpf_sock*, or NULL in case of failure. + * + * int bpf_sk_release(struct bpf_sock *sk) + * Description + * Release the reference held by *sock*. *sock* must be a non-NULL + * pointer that was returned from bpf_sk_lookup_xxx\ (). + * Return + * 0 on success, or a negative error in case of failure. + * + * int bpf_msg_push_data(struct sk_buff *skb, u32 start, u32 len, u64 flags) + * Description + * For socket policies, insert *len* bytes into msg at offset + * *start*. + * + * If a program of type **BPF_PROG_TYPE_SK_MSG** is run on a + * *msg* it may want to insert metadata or options into the msg. + * This can later be read and used by any of the lower layer BPF + * hooks. + * + * This helper may fail if under memory pressure (a malloc + * fails) in these cases BPF programs will get an appropriate + * error and BPF programs will need to handle them. + * + * Return + * 0 on success, or a negative error in case of failure. */ #define __BPF_FUNC_MAPPER(FN) \ FN(unspec), \ @@ -2226,7 +2342,14 @@ union bpf_attr { FN(get_current_cgroup_id), \ FN(get_local_storage), \ FN(sk_select_reuseport), \ - FN(skb_ancestor_cgroup_id), + FN(skb_ancestor_cgroup_id), \ + FN(sk_lookup_tcp), \ + FN(sk_lookup_udp), \ + FN(sk_release), \ + FN(map_push_elem), \ + FN(map_pop_elem), \ + FN(map_peek_elem), \ + FN(msg_push_data), /* integer value in 'imm' field of BPF_CALL instruction selects which helper * function eBPF program intends to call @@ -2333,6 +2456,7 @@ struct __sk_buff { /* ... here. */ __u32 data_meta; + struct bpf_flow_keys *flow_keys; }; struct bpf_tunnel_key { @@ -2395,6 +2519,23 @@ struct bpf_sock { */ }; +struct bpf_sock_tuple { + union { + struct { + __be32 saddr; + __be32 daddr; + __be16 sport; + __be16 dport; + } ipv4; + struct { + __be32 saddr[4]; + __be32 daddr[4]; + __be16 sport; + __be16 dport; + } ipv6; + }; +}; + #define XDP_PACKET_HEADROOM 256 /* User return codes for XDP prog type. @@ -2778,4 +2919,27 @@ enum bpf_task_fd_type { BPF_FD_TYPE_URETPROBE, /* filename + offset */ }; +struct bpf_flow_keys { + __u16 nhoff; + __u16 thoff; + __u16 addr_proto; /* ETH_P_* of valid addrs */ + __u8 is_frag; + __u8 is_first_frag; + __u8 is_encap; + __u8 ip_proto; + __be16 n_proto; + __be16 sport; + __be16 dport; + union { + struct { + __be32 ipv4_src; + __be32 ipv4_dst; + }; + struct { + __u32 ipv6_src[4]; /* in6_addr; network order */ + __u32 ipv6_dst[4]; /* in6_addr; network order */ + }; + }; +}; + #endif /* _UAPI__LINUX_BPF_H__ */ diff --git a/tools/include/uapi/linux/if_link.h b/tools/include/uapi/linux/if_link.h index 43391e2d1153..58faab897201 100644 --- a/tools/include/uapi/linux/if_link.h +++ b/tools/include/uapi/linux/if_link.h @@ -161,6 +161,7 @@ enum { IFLA_EVENT, IFLA_NEW_NETNSID, IFLA_IF_NETNSID, + IFLA_TARGET_NETNSID = IFLA_IF_NETNSID, /* new alias */ IFLA_CARRIER_UP_COUNT, IFLA_CARRIER_DOWN_COUNT, IFLA_NEW_IFINDEX, @@ -554,6 +555,7 @@ enum { IFLA_GENEVE_UDP_ZERO_CSUM6_TX, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, IFLA_GENEVE_LABEL, + IFLA_GENEVE_TTL_INHERIT, __IFLA_GENEVE_MAX }; #define IFLA_GENEVE_MAX (__IFLA_GENEVE_MAX - 1) diff --git a/tools/include/uapi/linux/tls.h b/tools/include/uapi/linux/tls.h new file mode 100644 index 000000000000..ff02287495ac --- /dev/null +++ b/tools/include/uapi/linux/tls.h @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */ +/* + * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _UAPI_LINUX_TLS_H +#define _UAPI_LINUX_TLS_H + +#include <linux/types.h> + +/* TLS socket options */ +#define TLS_TX 1 /* Set transmit parameters */ +#define TLS_RX 2 /* Set receive parameters */ + +/* Supported versions */ +#define TLS_VERSION_MINOR(ver) ((ver) & 0xFF) +#define TLS_VERSION_MAJOR(ver) (((ver) >> 8) & 0xFF) + +#define TLS_VERSION_NUMBER(id) ((((id##_VERSION_MAJOR) & 0xFF) << 8) | \ + ((id##_VERSION_MINOR) & 0xFF)) + +#define TLS_1_2_VERSION_MAJOR 0x3 +#define TLS_1_2_VERSION_MINOR 0x3 +#define TLS_1_2_VERSION TLS_VERSION_NUMBER(TLS_1_2) + +/* Supported ciphers */ +#define TLS_CIPHER_AES_GCM_128 51 +#define TLS_CIPHER_AES_GCM_128_IV_SIZE 8 +#define TLS_CIPHER_AES_GCM_128_KEY_SIZE 16 +#define TLS_CIPHER_AES_GCM_128_SALT_SIZE 4 +#define TLS_CIPHER_AES_GCM_128_TAG_SIZE 16 +#define TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE 8 + +#define TLS_SET_RECORD_TYPE 1 +#define TLS_GET_RECORD_TYPE 2 + +struct tls_crypto_info { + __u16 version; + __u16 cipher_type; +}; + +struct tls12_crypto_info_aes_gcm_128 { + struct tls_crypto_info info; + unsigned char iv[TLS_CIPHER_AES_GCM_128_IV_SIZE]; + unsigned char key[TLS_CIPHER_AES_GCM_128_KEY_SIZE]; + unsigned char salt[TLS_CIPHER_AES_GCM_128_SALT_SIZE]; + unsigned char rec_seq[TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE]; +}; + +#endif /* _UAPI_LINUX_TLS_H */ |