kernel/bpf-developer-tutorial
1
0
Fork 0
mirror of https://github.com/eunomia-bpf/bpf-developer-tutorial.git synced 2026-02-04 02:34:16 +08:00
Code Issues Packages Projects Releases Wiki Activity
Files
483f2fc223a0ba1a3e8d52f04b98f6e698fd6d40
bpf-developer-tutorial/src/bcc-documents/kernel-versions_en.md
yunwei37 483f2fc223 add translate of bcc documents
2023-08-14 20:50:59 +08:00

65 KiB
Raw Blame History

BPF Features by Linux Kernel Version

eBPF support

Kernel version Commit
3.15 bd4cf0ed331a

JIT compiling

The list of supported architectures for your kernel can be retrieved with:

git grep HAVE_EBPF_JIT arch/
Feature / Architecture Kernel version Commit
x86_64 3.16 622582786c9e
ARM64 3.18 e54bcde3d69d
s390 4.1 054623105728
Constant blinding for JIT machines 4.7 4f3446bb809f
PowerPC64 4.8 156d0e290e96
Constant blinding - PowerPC64 4.9 b7b7013cac55
Sparc64 4.12 7a12b5031c6b
MIPS 4.13 f381bf6d82f0
ARM32 4.14 39c13c204bb1
x86_32 4.18 03f5781be2c7
RISC-V RV64G 5.1 2353ecc6f91fRISC-V RV32G
PowerPC32 5.13 51c66ad849a7
LoongArch 6.1 5dc615520c4d

Main features

Several (but not all) of these main features translate to an eBPF program type. The list of such program types supported in your kernel can be found in file include/uapi/linux/bpf.h:

git grep -W 'bpf_prog_type {' include/uapi/linux/bpf.h
Feature Kernel version Commit
AF_PACKET (libpcap/tcpdump, cls_bpf classifier, netfilter's xt_bpf, team driver's load-balancing mode…) 3.15 bd4cf0ed331a
Kernel helpers 3.15 bd4cf0ed331a
bpf() syscall 3.18 99c55f7d47c0
Maps (a.k.a. Tables; details below) 3.18 99c55f7d47c0
BPF attached to sockets 3.19 89aa075832b0
BPF attached to kprobes 4.1 2541517c32be
cls_bpf / act_bpf for tc 4.1 e2e9b6541dd4
Tail calls 4.2 04fd61ab36ecNon-root programs on sockets
Persistent maps and programs (virtual FS) 4.4 b2197755b263
tc's direct-action (da) mode 4.4 045efa82ff56
tc's clsact qdisc 4.5 1f211a1b929c
BPF attached to tracepoints 4.7 98b5c2c65c29
Direct packet access 4.7 969bf05eb3ce
XDP (see below) 4.8 6a773a15a1e8
BPF attached to perf events 4.9 0515e5999a46
Hardware offload for tc's cls_bpf 4.9 332ae8e2f6ec
Verifier exposure and internal hooks 4.9 13a27dfc6697
BPF attached to cgroups for socket filtering 4.10 0e33661de493
Lightweight tunnel encapsulation 4.10 3a0af8fd61f9
eBPF support for xt_bpf module (iptables) 4.10 2c16d6033264
BPF program tag 4.10 7bd509e311f4Tracepoints to debug BPF
Testing / benchmarking BPF programs 4.12 1cf1cae963c2
BPF programs and maps IDs 4.13 dc4bb0e23561
BPF support for sock_ops 4.13 40304b2a1567
BPF support for skbs on sockets 4.14 b005fd189cec
bpftool utility in kernel sources 4.15 71bb428fe2c1
BPF attached to cgroups as device controller 4.15 ebc614f68736
bpf2bpf function calls 4.16 cc8b0b92a169
BPF used for monitoring socket RX/TX data 4.17 4f738adba30a
BPF attached to raw tracepoints 4.17 c4f6699dfcb8
BPF attached to bind() system call 4.17 4fbac77d2d09 aac3fc320d94
BPF attached to connect() system call 4.17 d74bad4e74eeBPF Type Format (BTF)
AF_XDP 4.18 fbfc504a24f5
bpfilter 4.18 d2ba09c17a06
End.BPF action for seg6local LWT 4.18 004d4b274e2a
BPF attached to LIRC devices 4.18 f4364dcfc86d
Pass map values to map helpers 4.18 d71962f3e627
BPF socket reuseport 4.19 2dbb9b9e6df6
BPF flow dissector 4.20 d58e468b1112
BPF 1M insn limit 5.2 c04c0d2b968a
BPF cgroup sysctl 5.2 7b146cebe30c
BPF raw tracepoint writable 5.2 9df1c28bb752
BPF bounded loop 5.3 2589726d12a1
BPF trampoline 5.5 fec56f5890d9
BPF LSM hook 5.7 fc611f47f218 641cd7b06c91
BPF iterator 5.8 180139dca8b3BPF socket lookup hook
Sleepable BPF programs 5.10 1e6c62a88215

Program types

Program type Kernel version Commit Enum
Socket filter 3.19 ddd872bc3098 BPF_PROG_TYPE_SOCKET_FILTER
Kprobe 4.1 2541517c32be BPF_PROG_TYPE_KPROBE
traffic control (TC) 4.1 96be4325f443 BPF_PROG_TYPE_SCHED_CLS
traffic control (TC) 4.1 94caee8c312d BPF_PROG_TYPE_SCHED_ACT
Tracepoint 4.7 98b5c2c65c29 BPF_PROG_TYPE_TRACEPOINT
XDP 4.8 6a773a15a1e8 BPF_PROG_TYPE_XDP
Perf event 4.9 0515e5999a46 BPF_PROG_TYPE_PERF_EVENT
cgroup socket filtering 4.10 0e33661de493 BPF_PROG_TYPE_CGROUP_SKB
cgroup sock modification 4.10 610236587600 BPF_PROG_TYPE_CGROUP_SOCK
lightweight tunnel (IN) 4.10 3a0af8fd61f9 BPF_PROG_TYPE_LWT_IN".lightweight tunnel (OUT)
lightweight tunnel (XMIT) 4.10 3a0af8fd61f9 BPF_PROG_TYPE_LWT_XMIT
cgroup sock ops (per conn) 4.13 40304b2a1567 BPF_PROG_TYPE_SOCK_OPS
stream parser / stream verdict 4.14 b005fd189cec BPF_PROG_TYPE_SK_SKB
cgroup device manager 4.15 ebc614f68736 BPF_PROG_TYPE_CGROUP_DEVICE
socket msg verdict 4.17 4f738adba30a BPF_PROG_TYPE_SK_MSG
Raw tracepoint 4.17 c4f6699dfcb8 BPF_PROG_TYPE_RAW_TRACEPOINT
socket binding 4.17 4fbac77d2d09 BPF_PROG_TYPE_CGROUP_SOCK_ADDR
LWT seg6local 4.18 004d4b274e2a BPF_PROG_TYPE_LWT_SEG6LOCAL
lirc devices 4.18 f4364dcfc86d BPF_PROG_TYPE_LIRC_MODE2
lookup SO_REUSEPORT socket 4.19 2dbb9b9e6df6 BPF_PROG_TYPE_SK_REUSEPORT
flow dissector 4.20 d58e468b1112 BPF_PROG_TYPE_FLOW_DISSECTOR.```markdown
cgroup sysctl 5.2 7b146cebe30c BPF_PROG_TYPE_CGROUP_SYSCTL
writable raw tracepoints 5.2 9df1c28bb752 BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE
cgroup getsockopt/setsockopt 5.3 0d01da6afc54 BPF_PROG_TYPE_CGROUP_SOCKOPT
Tracing (BTF/BPF trampoline) 5.5 f1b9509c2fb0 BPF_PROG_TYPE_TRACING
struct ops 5.6 27ae7997a661 BPF_PROG_TYPE_STRUCT_OPS
extensions 5.6 be8704ff07d2 BPF_PROG_TYPE_EXT
LSM 5.7 fc611f47f218 BPF_PROG_TYPE_LSM
lookup listening socket 5.9 e9ddbb7707ff BPF_PROG_TYPE_SK_LOOKUP
Allow executing syscalls 5.15 79a7f8bdb159 BPF_PROG_TYPE_SYSCALL

Maps (a.k.a. Tables, in BCC lingo)

Map types

The list of map types supported in your kernel can be found in file include/uapi/linux/bpf.h:

git grep -W 'bpf_map_type {' include/uapi/linux/bpf.h
Map type Kernel version Commit Enum
Hash 3.19 0f8e4bd8a1fc BPF_MAP_TYPE_HASH".
```Array 3.19 28fbcfa08d8e BPF_MAP_TYPE_ARRAY
Prog array 4.2 04fd61ab36ec BPF_MAP_TYPE_PROG_ARRAY
Perf events 4.3 ea317b267e9d BPF_MAP_TYPE_PERF_EVENT_ARRAY
Per-CPU hash 4.6 824bd0ce6c7c BPF_MAP_TYPE_PERCPU_HASH
Per-CPU array 4.6 a10423b87a7e BPF_MAP_TYPE_PERCPU_ARRAY
Stack trace 4.6 d5a3b1f69186 BPF_MAP_TYPE_STACK_TRACE
cgroup array 4.8 4ed8ec521ed5 BPF_MAP_TYPE_CGROUP_ARRAY
LRU hash 4.10 29ba732acbee 3a08c2fd7634 BPF_MAP_TYPE_LRU_HASH
LRU per-CPU hash 4.10 8f8449384ec3 961578b63474 BPF_MAP_TYPE_LRU_PERCPU_HASH
LPM trie (longest-prefix match) 4.11 b95a5c4db09b BPF_MAP_TYPE_LPM_TRIE
Array of maps 4.12 56f668dfe00d BPF_MAP_TYPE_ARRAY_OF_MAPSHash of maps
Netdevice references (array) 4.14 546ac1ffb70d BPF_MAP_TYPE_DEVMAP
Socket references (array) 4.14 174a79ff9515 BPF_MAP_TYPE_SOCKMAP
CPU references 4.15 6710e1126934 BPF_MAP_TYPE_CPUMAP
AF_XDP socket (XSK) references 4.18 fbfc504a24f5 BPF_MAP_TYPE_XSKMAP
Socket references (hashmap) 4.18 81110384441a BPF_MAP_TYPE_SOCKHASH
cgroup storage 4.19 de9cbbaadba5 BPF_MAP_TYPE_CGROUP_STORAGE
reuseport sockarray 4.19 5dc4c4b7d4e8 BPF_MAP_TYPE_REUSEPORT_SOCKARRAY
precpu cgroup storage 4.20 b741f1630346 BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE
queue 4.20 f1a2e44a3aec BPF_MAP_TYPE_QUEUE
stack 4.20 f1a2e44a3aec BPF_MAP_TYPE_STACK
socket local storage 5.2 6ac99e8f23d4 BPF_MAP_TYPE_SK_STORAGE".Netdevice references (hashmap)
struct ops 5.6 85d33df357b6 BPF_MAP_TYPE_STRUCT_OPS
ring buffer 5.8 457f44363a88 BPF_MAP_TYPE_RINGBUF
inode storage 5.10 8ea636848aca BPF_MAP_TYPE_INODE_STORAGE
task storage 5.11 4cf1bc1f1045 BPF_MAP_TYPE_TASK_STORAGE
Bloom filter 5.16 9330986c0300 BPF_MAP_TYPE_BLOOM_FILTER
user ringbuf 6.1 583c1f420173 BPF_MAP_TYPE_USER_RINGBUF

Map userspace API

Some (but not all) of these API features translate to a subcommand beginning with BPF_MAP_. The list of subcommands supported in your kernel can be found in file include/uapi/linux/bpf.h:

git grep -W 'bpf_cmd {' include/uapi/linux/bpf.h
Feature Kernel version Commit
Basic operations (lookup, update, delete, GET_NEXT_KEY) 3.18 db20fd2b0108
Pass flags to UPDATE_ELEM 3.19 3274f52073d8
Pre-alloc map memory by default 4.6 6c9059817432Pass NULL to GET_NEXT_KEY
Creation: select NUMA node 4.14 96eabe7a40aa
Restrict access from syscall side 4.15 6e71b04a8224
Creation: specify map name 4.15 ad5b177bd73f
LOOKUP_AND_DELETE_ELEM 4.20 bd513cd08f10
Creation: BPF_F_ZERO_SEED 5.0 96b3b6c9091d
BPF_F_LOCK flag for lookup / update 5.1 96049f3afd50
Restrict access from BPF side 5.2 591fe9888d78
FREEZE 5.2 87df15de441b
mmap() support for array maps 5.5 fc9702273e2e
LOOKUP_BATCH 5.6 cb4d03ab499d
UPDATE_BATCH, DELETE_BATCH 5.6 aa2e93b8e58e
LOOKUP_AND_DELETE_BATCH 5.6 057996380a42
LOOKUP_AND_DELETE_ELEM support for hash maps 5.14 3e87f192b405

XDP

An approximate list of drivers or components supporting XDP programs for your kernel can be retrieved with:

Feature / Driver Kernel version Commit
XDP core architecture 4.8 6a773a15a1e8
Action: drop 4.8 6a773a15a1e8
Action: pass on to stack 4.8 6a773a15a1e8
Action: direct forwarding (on same port) 4.8 6ce96ca348a9
Direct packet data write 4.8 4acf6c0b84c9
Mellanox mlx4 driver 4.8 47a38e155037
Mellanox mlx5 driver 4.9 86994156c736
Netronome nfp driver 4.10 ecd63a0217d5
QLogic (Cavium) qed* drivers 4.10 496e05170958
virtio_net driver 4.10 f600b6905015
Broadcom bnxt_en driver 4.11 c6d30e8391b8
Intel ixgbe* drivers 4.12 924708081629
Cavium thunderx driver 4.12 05c773f52b96
Generic XDP 4.12 b5cdae3291f7".# Helpers

The list of helpers supported in your kernel can be found in file."include/uapi/linux/bpf.h:

git grep '	FN(' include/uapi/linux/bpf.h

Alphabetical order

Helper Kernel version License Commit
BPF_FUNC_bind() 4.17 d74bad4e74ee
BPF_FUNC_bprm_opts_set() 5.11 3f6719c7b62f
BPF_FUNC_btf_find_by_name_kind() 5.14 3d78417b60fb
BPF_FUNC_cgrp_storage_delete() 6.2 c4bcfb38a95e
BPF_FUNC_cgrp_storage_get() 6.2 c4bcfb38a95e
BPF_FUNC_check_mtu() 5.12 34b2021cc616
BPF_FUNC_clone_redirect() 4.2 3896d655f4d4
BPF_FUNC_copy_from_user() 5.10 07be4c4a3e7a
BPF_FUNC_copy_from_user_task() 5.18 GPL 376040e47334
BPF_FUNC_csum_diff() 4.6 7d672345ed29
BPF_FUNC_csum_level() 5.7 7cdec54f9713
BPF_FUNC_csum_update() 4.9 36bbef52c7eb".
Helper Kernel version License Commit
BPF_FUNC_bind() 4.17 d74bad4e74ee
BPF_FUNC_bprm_opts_set() 5.11 3f6719c7b62f
BPF_FUNC_btf_find_by_name_kind() 5.14 3d78417b60fb
BPF_FUNC_cgrp_storage_delete() 6.2 c4bcfb38a95e
BPF_FUNC_cgrp_storage_get() 6.2 c4bcfb38a95e
BPF_FUNC_check_mtu() 5.12 34b2021cc616
BPF_FUNC_clone_redirect() 4.2 3896d655f4d4
BPF_FUNC_copy_from_user() 5.10 07be4c4a3e7a
BPF_FUNC_copy_from_user_task() 5.18 GPL 376040e47334
BPF_FUNC_csum_diff() 4.6 7d672345ed29
BPF_FUNC_csum_level() 5.7 7cdec54f9713
BPF_FUNC_csum_update() 4.9 36bbef52c7eb".BPF_FUNC_current_task_under_cgroup()
BPF_FUNC_d_path() 5.10 6e22ab9da793
BPF_FUNC_dynptr_data() 5.19 34d4ef5775f7
BPF_FUNC_dynptr_from_mem() 5.19 263ae152e962
BPF_FUNC_dynptr_read() 5.19 13bbbfbea759
BPF_FUNC_dynptr_write() 5.19 13bbbfbea759
BPF_FUNC_fib_lookup() 4.18 GPL 87f5fc7e48dd
BPF_FUNC_find_vma() 5.17 7c7e3d31e785
BPF_FUNC_for_each_map_elem() 5.13 69c087ba6225
BPF_FUNC_get_attach_cookie() 5.15 7adfc6c9b315
BPF_FUNC_get_branch_snapshot() 5.16 GPL 856c02dbce4f
BPF_FUNC_get_current_ancestor_cgroup_id() 5.6 b4490c5c4e02
BPF_FUNC_get_cgroup_classid() 4.3 8d20aabe1c76
BPF_FUNC_get_current_cgroup_id() 4.18 bf6fa2c893c5"BPF_FUNC_get_current_comm()
BPF_FUNC_get_current_pid_tgid() 4.2 ffeedafbf023
BPF_FUNC_get_current_task() 4.8 GPL 606274c5abd8
BPF_FUNC_get_current_task_btf() 5.11 GPL 3ca1032ab7ab
BPF_FUNC_get_current_uid_gid() 4.2 ffeedafbf023
BPF_FUNC_get_func_arg() 5.17 f92c1e183604
BPF_FUNC_get_func_arg_cnt() 5.17 f92c1e183604
BPF_FUNC_get_func_ip() 5.15 5d8b583d04ae
BPF_FUNC_get_func_ret() 5.17 f92c1e183604
BPF_FUNC_get_retval() 5.18 b44123b4a3dc
BPF_FUNC_get_hash_recalc() 4.8 13c5c240f789
BPF_FUNC_get_listener_sock() 5.1 dbafd7ddd623
BPF_FUNC_get_local_storage() 4.19 cd3394317653
BPF_FUNC_get_netns_cookie() 5.7 f318903c0bf4".

Return only the translated content, not including the original text.BPF_FUNC_get_ns_current_pid_tgid() | 5.7 | | b4490c5c4e02 BPF_FUNC_get_numa_node_id() | 4.10 | | 2d0e30c30f84 BPF_FUNC_get_prandom_u32() | 4.1 | | 03e69b508b6f BPF_FUNC_get_route_realm() | 4.4 | | c46646d0484f BPF_FUNC_get_smp_processor_id() | 4.1 | | c04167ce2ca0 BPF_FUNC_get_socket_cookie() | 4.12 | | 91b8270f2a4d BPF_FUNC_get_socket_uid() | 4.12 | | 6acc5c291068 BPF_FUNC_get_stack() | 4.18 | GPL | de2ff05f48af BPF_FUNC_get_stackid() | 4.6 | GPL | d5a3b1f69186 BPF_FUNC_get_task_stack() | 5.9 | | fa28dcb82a38 BPF_FUNC_getsockopt() | 4.15 | | cd86d1fd2102 BPF_FUNC_ima_file_hash() | 5.18 | | 174b16946e39 BPF_FUNC_ima_inode_hash() | 5.11 | | 27672f0d280a BPF_FUNC_inode_storage_delete() | 5.10 | | 8ea636848aca``BPF_FUNC_inode_storage_get() | 5.10 | | [8ea636848aca](https://github.com/torvalds/linux/commit/8ea636848aca35b9f97c5b5dee30225cf2dd0fe6) BPF_FUNC_jiffies64() | 5.5 | | [5576b991e9c1](https://github.com/torvalds/linux/commit/5576b991e9c1a11d2cc21c4b94fc75ec27603896) BPF_FUNC_kallsyms_lookup_name() | 5.16 | | [d6aef08a872b](https://github.com/torvalds/linux/commit/d6aef08a872b9e23eecc92d0e92393473b13c497) BPF_FUNC_kptr_xchg() | 5.19 | | [c0a5a21c25f3](https://github.com/torvalds/linux/commit/c0a5a21c25f37c9fd7b36072f9968cdff1e4aa13) BPF_FUNC_ktime_get_boot_ns() | 5.8 | | [71d19214776e](https://github.com/torvalds/linux/commit/71d19214776e61b33da48f7c1b46e522c7f78221) BPF_FUNC_ktime_get_coarse_ns() | 5.11 | | [d05512618056](https://github.com/torvalds/linux/commit/d055126180564a57fe533728a4e93d0cb53d49b3) BPF_FUNC_ktime_get_ns() | 4.1 | | [d9847d310ab4](https://github.com/torvalds/linux/commit/d9847d310ab4003725e6ed1822682e24bd406908) BPF_FUNC_ktime_get_tai_ns() | 6.1 | | [c8996c98f703](https://github.com/torvalds/linux/commit/c8996c98f703b09afe77a1d247dae691c9849dc1) BPF_FUNC_l3_csum_replace() | 4.1 | | [91bc4822c3d6](https://github.com/torvalds/linux/commit/91bc4822c3d61b9bb7ef66d3b77948a4f9177954) BPF_FUNC_l4_csum_replace() | 4.1 | | [91bc4822c3d6](https://github.com/torvalds/linux/commit/91bc4822c3d61b9bb7ef66d3b77948a4f9177954) BPF_FUNC_load_hdr_opt() | 5.10 | | [0813a841566f](https://github.com/torvalds/linux/commit/0813a841566f0962a5551be7749b43c45f0022a0) BPF_FUNC_loop() | 5.17 | | [e6f2dd0f8067](https://github.com/torvalds/linux/commit/e6f2dd0f80674e9d5960337b3e9c2a242441b326) BPF_FUNC_lwt_push_encap() | 4.18 | | [fe94cc290f53](https://github.com/torvalds/linux/commit/fe94cc290f535709d3c5ebd1e472dfd0aec7ee79) BPF_FUNC_lwt_seg6_action() | 4.18 | | [fe94cc290f53](https://github.com/torvalds/linux/commit/fe94cc290f535709d3c5ebd1e472dfd0aec7ee79)BPF_FUNC_lwt_seg6_adjust_srh() | 4.18 | | [fe94cc290f53](https://github.com/torvalds/linux/commit/fe94cc290f535709d3c5ebd1e472dfd0aec7ee79) BPF_FUNC_lwt_seg6_store_bytes() | 4.18 | | [fe94cc290f53](https://github.com/torvalds/linux/commit/fe94cc290f535709d3c5ebd1e472dfd0aec7ee79) BPF_FUNC_map_delete_elem() | 3.19 | | [d0003ec01c66](https://github.com/torvalds/linux/commit/d0003ec01c667b731c139e23de3306a8b328ccf5) BPF_FUNC_map_lookup_elem() | 3.19 | | [d0003ec01c66](https://github.com/torvalds/linux/commit/d0003ec01c667b731c139e23de3306a8b328ccf5) BPF_FUNC_map_lookup_percpu_elem() | 5.19 | | [07343110b293](https://github.com/torvalds/linux/commit/07343110b293456d30393e89b86c4dee1ac051c8) BPF_FUNC_map_peek_elem() | 4.20 | | [f1a2e44a3aec](https://github.com/torvalds/linux/commit/f1a2e44a3aeccb3ff18d3ccc0b0203e70b95bd92) BPF_FUNC_map_pop_elem() | 4.20 | | [f1a2e44a3aec](https://github.com/torvalds/linux/commit/f1a2e44a3aeccb3ff18d3ccc0b0203e70b95bd92) BPF_FUNC_map_push_elem() | 4.20 | | [f1a2e44a3aec](https://github.com/torvalds/linux/commit/f1a2e44a3aeccb3ff18d3ccc0b0203e70b95bd92) BPF_FUNC_map_update_elem() | 3.19 | | [d0003ec01c66](https://github.com/torvalds/linux/commit/d0003ec01c667b731c139e23de3306a8b328ccf5) BPF_FUNC_msg_apply_bytes() | 4.17 | | [2a100317c9eb](https://github.com/torvalds/linux/commit/2a100317c9ebc204a166f16294884fbf9da074ce) BPF_FUNC_msg_cork_bytes() | 4.17 | | [91843d540a13](https://github.com/torvalds/linux/commit/91843d540a139eb8070bcff8aa10089164436deb) BPF_FUNC_msg_pop_data() | 5.0 | | [7246d8ed4dcc](https://github.com/torvalds/linux/commit/7246d8ed4dcce23f7509949a77be15fa9f0e3d28) BPF_FUNC_msg_pull_data() | 4.17 | | [015632bb30da](https://github.com/torvalds/linux/commit/015632bb30daaaee64e1bcac07570860e0bf3092) BPF_FUNC_msg_push_data() | 4.20 | | [6fff607e2f14](https://github.com/torvalds/linux/commit/6fff607e2f14bd7c63c06c464a6f93b8efbabe28)".BPF_FUNC_msg_redirect_hash() | 4.18 | | [81110384441a](https://github.com/torvalds/linux/commit/81110384441a59cff47430f20f049e69b98c17f4) BPF_FUNC_msg_redirect_map() | 4.17 | | [4f738adba30a](https://github.com/torvalds/linux/commit/4f738adba30a7cfc006f605707e7aee847ffefa0) BPF_FUNC_per_cpu_ptr() | 5.10 | | [eaa6bcb71ef6](https://github.com/torvalds/linux/commit/eaa6bcb71ef6ed3dc18fc525ee7e293b06b4882b) | BPF_FUNC_perf_event_output() | 4.4 | GPL | [a43eec304259](https://github.com/torvalds/linux/commit/a43eec304259a6c637f4014a6d4767159b6a3aa3) BPF_FUNC_perf_event_read() | 4.3 | GPL | [35578d798400](https://github.com/torvalds/linux/commit/35578d7984003097af2b1e34502bc943d40c1804) BPF_FUNC_perf_event_read_value() | 4.15 | GPL | [908432ca84fc](https://github.com/torvalds/linux/commit/908432ca84fc229e906ba164219e9ad0fe56f755) BPF_FUNC_perf_prog_read_value() | 4.15 | GPL | [4bebdc7a85aa](https://github.com/torvalds/linux/commit/4bebdc7a85aa400c0222b5329861e4ad9252f1e5) BPF_FUNC_probe_read() | 4.1 | GPL | [2541517c32be](https://github.com/torvalds/linux/commit/2541517c32be2531e0da59dfd7efc1ce844644f5) BPF_FUNC_probe_read_kernel() | 5.5 | GPL | [6ae08ae3dea2](https://github.com/torvalds/linux/commit/6ae08ae3dea2cfa03dd3665a3c8475c2d429ef47) BPF_FUNC_probe_read_kernel_str() | 5.5 | GPL | [6ae08ae3dea2](https://github.com/torvalds/linux/commit/6ae08ae3dea2cfa03dd3665a3c8475c2d429ef47) BPF_FUNC_probe_read_user() | 5.5 | GPL | [6ae08ae3dea2](https://github.com/torvalds/linux/commit/6ae08ae3dea2cfa03dd3665a3c8475c2d429ef47) BPF_FUNC_probe_read_user_str() | 5.5 | GPL | [6ae08ae3dea2](https://github.com/torvalds/linux/commit/6ae08ae3dea2cfa03dd3665a3c8475c2d429ef47) BPF_FUNC_probe_read_str() | 4.11 | GPL | [a5e8c07059d0](https://github.com/torvalds/linux/commit/a5e8c07059d0f0b31737408711d44794928ac218) BPF_FUNC_probe_write_user() | 4.8 | GPL | [96ae52279594](https://github.com/torvalds/linux/commit/96ae52279594470622ff0585621a13e96b700600)| Function | Version | License | Commit Link | | ------------- | ------- | ------- | ------------------------------------------------------------- | | BPF_FUNC_rc_keydown() | 4.18 | GPL | [f4364dcfc86d](https://github.com/torvalds/linux/commit/f4364dcfc86df7c1ca47b256eaf6b6d0cdd0d936) | | BPF_FUNC_rc_pointer_rel() | 5.0 | GPL | [01d3240a04f4](https://github.com/torvalds/linux/commit/01d3240a04f4c09392e13c77b54d4423ebce2d72) | | BPF_FUNC_rc_repeat() | 4.18 | GPL | [f4364dcfc86d](https://github.com/torvalds/linux/commit/f4364dcfc86df7c1ca47b256eaf6b6d0cdd0d936) | | BPF_FUNC_read_branch_records() | 5.6 | GPL | [fff7b64355ea](https://github.com/torvalds/linux/commit/fff7b64355eac6e29b50229ad1512315bc04b44e) | | BPF_FUNC_redirect() | 4.4 | | [27b29f63058d](https://github.com/torvalds/linux/commit/27b29f63058d26c6c1742f1993338280d5a41dc6) | | BPF_FUNC_redirect_map() | 4.14 | | [97f91a7cf04f](https://github.com/torvalds/linux/commit/97f91a7cf04ff605845c20948b8a80e54cbd3376) | | BPF_FUNC_redirect_neigh() | 5.10 | | [b4ab31414970](https://github.com/torvalds/linux/commit/b4ab31414970a7a03a5d55d75083f2c101a30592) | | BPF_FUNC_redirect_peer() | 5.10 | | [9aa1206e8f48](https://github.com/torvalds/linux/commit/9aa1206e8f48222f35a0c809f33b2f4aaa1e2661) | | BPF_FUNC_reserve_hdr_opt() | 5.10 | | [0813a841566f](https://github.com/torvalds/linux/commit/0813a841566f0962a5551be7749b43c45f0022a0) | | BPF_FUNC_ringbuf_discard() | 5.8 | | [457f44363a88](https://github.com/torvalds/linux/commit/457f44363a8894135c85b7a9afd2bd8196db24ab) | | BPF_FUNC_ringbuf_discard_dynptr() | 5.19 | | [bc34dee65a65](https://github.com/torvalds/linux/commit/bc34dee65a65e9c920c420005b8a43f2a721a458) | | BPF_FUNC_ringbuf_output() | 5.8 | | [457f44363a88](https://github.com/torvalds/linux/commit/457f44363a8894135c85b7a9afd2bd8196db24ab) | | BPF_FUNC_ringbuf_query() | 5.8 | | [457f44363a88](https://github.com/torvalds/linux/commit/457f44363a8894135c85b7a9afd2bd8196db24ab) | | BPF_FUNC_ringbuf_reserve() | 5.8 | | [457f44363a88](https://github.com/torvalds/linux/commit/457f44363a8894135c85b7a9afd2bd8196db24ab) |"BPF_FUNC_ringbuf_reserve_dynptr() | 5.19 | | [bc34dee65a65](https://github.com/torvalds/linux/commit/bc34dee65a65e9c920c420005b8a43f2a721a458) BPF_FUNC_ringbuf_submit() | 5.8 | | [457f44363a88](https://github.com/torvalds/linux/commit/457f44363a8894135c85b7a9afd2bd8196db24ab) BPF_FUNC_ringbuf_submit_dynptr() | 5.19 | | [bc34dee65a65](https://github.com/torvalds/linux/commit/bc34dee65a65e9c920c420005b8a43f2a721a458) BPF_FUNC_send_signal() | 5.3 | | [8b401f9ed244](https://github.com/torvalds/linux/commit/8b401f9ed2441ad9e219953927a842d24ed051fc) BPF_FUNC_send_signal_thread() | 5.5 | | [8482941f0906](https://github.com/torvalds/linux/commit/8482941f09067da42f9c3362e15bfb3f3c19d610) BPF_FUNC_seq_printf() | 5.7 | GPL | [492e639f0c22](https://github.com/torvalds/linux/commit/492e639f0c222784e2e0f121966375f641c61b15) BPF_FUNC_seq_printf_btf() | 5.10 | | [eb411377aed9](https://github.com/torvalds/linux/commit/eb411377aed9e27835e77ee0710ee8f4649958f3) BPF_FUNC_seq_write() | 5.7 | GPL | [492e639f0c22](https://github.com/torvalds/linux/commit/492e639f0c222784e2e0f121966375f641c61b15) BPF_FUNC_set_hash() | 4.13 | | [ded092cd73c2](https://github.com/torvalds/linux/commit/ded092cd73c2c56a394b936f86897f29b2e131c0) BPF_FUNC_set_hash_invalid() | 4.9 | | [7a4b28c6cc9f](https://github.com/torvalds/linux/commit/7a4b28c6cc9ffac50f791b99cc7e46106436e5d8) BPF_FUNC_set_retval() | 5.18 | | [b44123b4a3dc](https://github.com/torvalds/linux/commit/b44123b4a3dcad4664d3a0f72c011ffd4c9c4d93) BPF_FUNC_setsockopt() | 4.13 | | [8c4b4c7e9ff0](https://github.com/torvalds/linux/commit/8c4b4c7e9ff0447995750d9329949fa082520269) BPF_FUNC_sk_ancestor_cgroup_id() | 5.7 | | [f307fa2cb4c9](https://github.com/torvalds/linux/commit/f307fa2cb4c935f7f1ff0aeb880c7b44fb9a642b) BPF_FUNC_sk_assign() | 5.6 | | [cf7fbe660f2d`](cf7fbe660f)".

format: Return only the translated content, not including the original text.BPF_FUNC_sk_cgroup_id() | 5.7 | | f307fa2cb4c9 BPF_FUNC_sk_fullsock() | 5.1 | | 46f8bc92758c BPF_FUNC_sk_lookup_tcp() | 4.20 | | 6acc9b432e67 BPF_FUNC_sk_lookup_udp() | 4.20 | | 6acc9b432e67 BPF_FUNC_sk_redirect_hash() | 4.18 | | 81110384441a BPF_FUNC_sk_redirect_map() | 4.14 | | 174a79ff9515 BPF_FUNC_sk_release() | 4.20 | | 6acc9b432e67 BPF_FUNC_sk_select_reuseport() | 4.19 | | 2dbb9b9e6df6 BPF_FUNC_sk_storage_delete() | 5.2 | | 6ac99e8f23d4 BPF_FUNC_sk_storage_get() | 5.2 | | 6ac99e8f23d4 BPF_FUNC_skb_adjust_room() | 4.13 | | 2be7e212d541 BPF_FUNC_skb_ancestor_cgroup_id() | 4.19 | | 7723628101aa BPF_FUNC_skb_change_head() | 4.10 | | 3a0af8fd61f9 BPF_FUNC_skb_change_proto() | 4.8 | | 6578171a7ff0BPF_FUNC_skb_change_tail() | 4.9 | | 5293efe62df8 BPF_FUNC_skb_change_type() | 4.8 | | d2485c4242a8 BPF_FUNC_skb_cgroup_classid() | 5.10 | | b426ce83baa7 BPF_FUNC_skb_cgroup_id() | 4.18 | | cb20b08ead40 BPF_FUNC_skb_ecn_set_ce() | 5.1 | | f7c917ba11a6 BPF_FUNC_skb_get_tunnel_key() | 4.3 | | d3aa45ce6b94 BPF_FUNC_skb_get_tunnel_opt() | 4.6 | | 14ca0751c96f BPF_FUNC_skb_get_xfrm_state() | 4.18 | | 12bed760a78d BPF_FUNC_skb_load_bytes() | 4.5 | | 05c74e5e53f6 BPF_FUNC_skb_load_bytes_relative() | 4.18 | | 4e1ec56cdc59 BPF_FUNC_skb_output() | 5.5 | | a7658e1a4164 BPF_FUNC_skb_pull_data() | 4.9 | | 36bbef52c7eb BPF_FUNC_skb_set_tstamp() | 5.18 | | 9bb984f28d5b BPF_FUNC_skb_set_tunnel_key() | 4.3 | | d3aa45ce6b94BPF_FUNC_skb_set_tunnel_opt() | 4.6 | | 14ca0751c96f BPF_FUNC_skb_store_bytes() | 4.1 | | 91bc4822c3d6 BPF_FUNC_skb_under_cgroup() | 4.8 | | 4a482f34afcc BPF_FUNC_skb_vlan_pop() | 4.3 | | 4e10df9a60d9 BPF_FUNC_skb_vlan_push() | 4.3 | | 4e10df9a60d9 BPF_FUNC_skc_lookup_tcp() | 5.2 | | edbf8c01de5a BPF_FUNC_skc_to_mctcp_sock() | 5.19 | | 3bc253c2e652 BPF_FUNC_skc_to_tcp_sock() | 5.9 | | 478cfbdf5f13 BPF_FUNC_skc_to_tcp_request_sock() | 5.9 | | 478cfbdf5f13 BPF_FUNC_skc_to_tcp_timewait_sock() | 5.9 | | 478cfbdf5f13 BPF_FUNC_skc_to_tcp6_sock() | 5.9 | | af7ec1383361 BPF_FUNC_skc_to_udp6_sock() | 5.9 | | 0d4fad3e57df BPF_FUNC_skc_to_unix_sock() | 5.16 | | 9eeb3aa33ae0 BPF_FUNC_snprintf() | 5.13 | | 7b15523a989bBPF_FUNC_snprintf_btf() | 5.10 | | c4d0bfb45068 BPF_FUNC_sock_from_file() | 5.11 | | 4f19cab76136 BPF_FUNC_sock_hash_update() | 4.18 | | 81110384441a BPF_FUNC_sock_map_update() | 4.14 | | 174a79ff9515 BPF_FUNC_spin_lock() | 5.1 | | d83525ca62cf BPF_FUNC_spin_unlock() | 5.1 | | d83525ca62cf BPF_FUNC_store_hdr_opt() | 5.10 | | 0813a841566f BPF_FUNC_strncmp() | 5.17 | | c5fb19937455 BPF_FUNC_strtol() | 5.2 | | d7a4cb9b6705 BPF_FUNC_strtoul() | 5.2 | | d7a4cb9b6705 BPF_FUNC_sys_bpf() | 5.14 | | 79a7f8bdb159 BPF_FUNC_sys_close() | 5.14 | | 3abea089246f BPF_FUNC_sysctl_get_current_value() | 5.2 | | 1d11b3016cec BPF_FUNC_sysctl_get_name() | 5.2 | | 808649fb787dBPF_FUNC_sysctl_get_new_value() | 5.2 | | 4e63acdff864 BPF_FUNC_sysctl_set_new_value() | 5.2 | | 4e63acdff864 BPF_FUNC_tail_call() | 4.2 | | 04fd61ab36ec BPF_FUNC_task_pt_regs() | 5.15 | GPL | dd6e10fbd9f BPF_FUNC_task_storage_delete() | 5.11 | | 4cf1bc1f1045 BPF_FUNC_task_storage_get() | 5.11 | | 4cf1bc1f1045 BPF_FUNC_tcp_check_syncookie() | 5.2 | | 399040847084 BPF_FUNC_tcp_gen_syncookie() | 5.3 | | 70d66244317e BPF_FUNC_tcp_raw_check_syncookie_ipv4() | 6.0 | | 33bf9885040c BPF_FUNC_tcp_raw_check_syncookie_ipv6() | 6.0 | | 33bf9885040c BPF_FUNC_tcp_raw_gen_syncookie_ipv4() | 6.0 | | 33bf9885040c BPF_FUNC_tcp_raw_gen_syncookie_ipv6() | 6.0 | | 33bf9885040c BPF_FUNC_tcp_send_ack() | 5.5 | | 206057fe020a".BPF_FUNC_tcp_sock() | 5.1 | | 655a51e536c0 BPF_FUNC_this_cpu_ptr() | 5.10 | | 63d9b80dcf2c | BPF_FUNC_timer_init() | 5.15 | | b00628b1c7d5 BPF_FUNC_timer_set_callback() | 5.15 | | b00628b1c7d5 BPF_FUNC_timer_start() | 5.15 | | b00628b1c7d5 BPF_FUNC_timer_cancel() | 5.15 | | b00628b1c7d5 BPF_FUNC_trace_printk() | 4.1 | GPL | 9c959c863f82 BPF_FUNC_trace_vprintk() | 5.16 | GPL | 10aceb629e19 BPF_FUNC_user_ringbuf_drain() | 6.1 | | 205715673844 BPF_FUNC_xdp_adjust_head() | 4.10 | | 17bedab27231 BPF_FUNC_xdp_adjust_meta() | 4.15 | | de8f3a83b0a0 BPF_FUNC_xdp_adjust_tail() | 4.18 | | b32cc5b9a346 BPF_FUNC_xdp_get_buff_len() | 5.18 | | 0165cc817075 BPF_FUNC_xdp_load_bytes() | 5.18 | | 3f364222d032". format: 返回仅翻译的内容, 不包括原文."BPF_FUNC_xdp_store_bytes() | 5.18 | | 3f364222d032 BPF_FUNC_xdp_output() | 5.6 | GPL | d831ee84bfc9 BPF_FUNC_override_return() | 4.16 | GPL | 9802d86585db BPF_FUNC_sock_ops_cb_flags_set() | 4.16 | | b13d88072172

Note: GPL-only BPF helpers require a GPL-compatible license. The current licenses considered GPL-compatible by the kernel are:

  • GPL
  • GPL v2
  • GPL and additional rights
  • Dual BSD/GPL
  • Dual MIT/GPL
  • Dual MPL/GPL

Check the list of GPL-compatible licenses in your kernel source code.

Program Types

The list of program types and supported helper functions can be retrieved with:

git grep -W 'func_proto(enum bpf_func_id func_id' kernel/ net/ drivers/
Program Type Helper Functions
BPF_PROG_TYPE_SOCKET_FILTER BPF_FUNC_skb_load_bytes()
BPF_FUNC_skb_load_bytes_relative()
BPF_FUNC_get_socket_cookie()
BPF_FUNC_get_socket_uid()
BPF_FUNC_perf_event_output()
Base functions
BPF_PROG_TYPE_KPROBE BPF_FUNC_perf_event_output()
BPF_FUNC_get_stackid()
BPF_FUNC_get_stack()
BPF_FUNC_perf_event_read_value()
BPF_FUNC_override_return()
Tracing functions
BPF_PROG_TYPE_TRACEPOINT BPF_FUNC_perf_event_output()
BPF_FUNC_get_stackid()
BPF_FUNC_get_stack()
BPF_FUNC_d_path()
Tracing functions
BPF_PROG_TYPE_XDP BPF_FUNC_perf_event_output()
BPF_FUNC_get_smp_processor_id()
BPF_FUNC_csum_diff()
BPF_FUNC_xdp_adjust_head()
BPF_FUNC_xdp_adjust_meta()
BPF_FUNC_redirect()
BPF_FUNC_redirect_map()
BPF_FUNC_xdp_adjust_tail()
BPF_FUNC_fib_lookup()
Base functions
BPF_PROG_TYPE_PERF_EVENT BPF_FUNC_perf_event_output()
BPF_FUNC_get_stackid()
BPF_FUNC_get_stack()
BPF_FUNC_perf_prog_read_value()
Tracing functions
BPF_PROG_TYPE_CGROUP_SOCK BPF_FUNC_get_current_uid_gid()
Base functions
BPF_PROG_TYPE_LWT_IN BPF_FUNC_lwt_push_encap()
LWT functions
Base functions
BPF_PROG_TYPE_LWT_OUT LWT functions
Base functions
BPF_PROG_TYPE_LWT_XMIT BPF_FUNC_skb_get_tunnel_key()
BPF_FUNC_skb_set_tunnel_key()
BPF_FUNC_skb_get_tunnel_opt()
BPF_FUNC_skb_set_tunnel_opt()
BPF_FUNC_redirect()
BPF_FUNC_clone_redirect()
BPF_FUNC_skb_change_tail()
BPF_FUNC_skb_change_head()
BPF_FUNC_skb_store_bytes()
BPF_FUNC_csum_update()
BPF_FUNC_l3_csum_replace()
BPF_FUNC_l4_csum_replace()
BPF_FUNC_set_hash_invalid()
LWT functions
BPF_PROG_TYPE_SOCK_OPS BPF_FUNC_setsockopt()
BPF_FUNC_getsockopt()
BPF_FUNC_sock_ops_cb_flags_set()
BPF_FUNC_sock_map_update()
BPF_FUNC_sock_hash_update()
BPF_FUNC_get_socket_cookie()
Base functions
BPF_PROG_TYPE_SK_SKB BPF_FUNC_skb_store_bytes()
BPF_FUNC_skb_load_bytes()
BPF_FUNC_skb_pull_data()
BPF_FUNC_skb_change_tail()
BPF_FUNC_skb_change_head()
BPF_FUNC_get_socket_cookie()
BPF_FUNC_get_socket_uid()
BPF_FUNC_sk_redirect_map()
BPF_FUNC_sk_redirect_hash()
BPF_FUNC_sk_lookup_tcp()
BPF_FUNC_sk_lookup_udp()
BPF_FUNC_sk_release()
Base functions
BPF_PROG_TYPE_CGROUP_DEVICE BPF_FUNC_map_lookup_elem()
BPF_FUNC_map_update_elem()
BPF_FUNC_map_delete_elem()
BPF_FUNC_get_current_uid_gid()
BPF_FUNC_trace_printk()
BPF_PROG_TYPE_RAW_TRACEPOINT BPF_FUNC_perf_event_output()
BPF_FUNC_get_stackid()
BPF_FUNC_get_stack()
BPF_FUNC_skb_output()
Tracing functions
BPF_PROG_TYPE_CGROUP_SOCK_ADDR BPF_FUNC_get_current_uid_gid()
BPF_FUNC_bind()
BPF_FUNC_get_socket_cookie()
Base functions
BPF_PROG_TYPE_LWT_SEG6LOCAL BPF_FUNC_lwt_seg6_store_bytes()
BPF_FUNC_lwt_seg6_action()
BPF_FUNC_lwt_seg6_adjust_srh()
LWT functions
BPF_PROG_TYPE_LIRC_MODE2 BPF_FUNC_rc_repeat()
BPF_FUNC_rc_keydown()
BPF_FUNC_rc_pointer_rel()
BPF_FUNC_map_lookup_elem()
BPF_FUNC_map_update_elem()
BPF_FUNC_map_delete_elem()
BPF_FUNC_ktime_get_ns()
BPF_FUNC_tail_call()
BPF_FUNC_get_prandom_u32()
BPF_FUNC_trace_printk()
BPF_PROG_TYPE_SK_REUSEPORT BPF_FUNC_sk_select_reuseport()
BPF_FUNC_skb_load_bytes()
BPF_FUNC_load_bytes_relative()
Base functions
BPF_PROG_TYPE_FLOW_DISSECTOR BPF_FUNC_skb_load_bytes()
Base functions
Function Group Functions
Base functions BPF_FUNC_map_lookup_elem()
BPF_FUNC_map_update_elem()
BPF_FUNC_map_delete_elem()
BPF_FUNC_map_peek_elem()
BPF_FUNC_map_pop_elem()
BPF_FUNC_map_push_elem()
BPF_FUNC_get_prandom_u32()
BPF_FUNC_get_smp_processor_id()
BPF_FUNC_get_numa_node_id()
BPF_FUNC_tail_call()
BPF_FUNC_ktime_get_boot_ns()
BPF_FUNC_ktime_get_ns()
BPF_FUNC_trace_printk()
BPF_FUNC_spin_lock()
BPF_FUNC_spin_unlock()
LWT functions BPF_FUNC_skb_load_bytes()
BPF_FUNC_skb_pull_data()
BPF_FUNC_csum_diff()
BPF_FUNC_get_cgroup_classid()
BPF_FUNC_get_route_realm()
BPF_FUNC_get_hash_recalc()
BPF_FUNC_perf_event_output()
BPF_FUNC_get_smp_processor_id()
BPF_FUNC_skb_under_cgroup()
Reference in New Issue View Git Blame Copy Permalink