kernel-versions.md

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	2353ecc6f91f
RISC-V RV32G	5.7	5f316b65e99f
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	04fd61ab36ec
Non-root programs on sockets	4.4	1be7f75d1668
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	7bd509e311f4
Tracepoints to debug BPF	4.11 (removed in 4.18)	a67edbf4fb6d 4d220ed0f814
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	d74bad4e74ee
BPF Type Format (BTF)	4.18	69b693f0aefa
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	180139dca8b3
BPF socket lookup hook	5.9	e9ddbb7707ff
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)	4.10	3a0af8fd61f9	BPF_PROG_TYPE_LWT_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
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_MAPS
Hash of maps	4.12	bcc6b1b7ebf8	BPF_MAP_TYPE_HASH_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)	5.4	6f9d451ab1a3	BPF_MAP_TYPE_DEVMAP_HASH
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	6c9059817432
Pass NULL to GET_NEXT_KEY	4.12	8fe45924387b
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:

git grep -l XDP_SETUP_PROG drivers/

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
Intel i40e driver	4.13	0c8493d90b6b
Action: redirect	4.14	6453073987ba
Support for tap	4.14	761876c857cb
Support for veth	4.14	d445516966dc
Intel ixgbevf driver	4.17	c7aec59657b6
Freescale dpaa2 driver	5.0	7e273a8ebdd3
Socionext netsec driver	5.3	ba2b232108d3
TI cpsw driver	5.3	9ed4050c0d75
Intel ice driver	5.5	efc2214b6047
Solarflare sfc driver	5.5	eb9a36be7f3e
Marvell mvneta driver	5.5	0db51da7a8e9
Microsoft hv_netvsc driver	5.6	351e1581395f
Amazon ena driver	5.6	838c93dc5449
xen-netfront driver	5.9	6c5aa6fc4def
Intel igb driver	5.10	9cbc948b5a20

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
BPF_FUNC_current_task_under_cgroup()	4.9		60d20f9195b2
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()	4.2		ffeedafbf023
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
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
BPF_FUNC_jiffies64()	5.5		5576b991e9c1
BPF_FUNC_kallsyms_lookup_name()	5.16		d6aef08a872b
BPF_FUNC_kptr_xchg()	5.19		c0a5a21c25f3
BPF_FUNC_ktime_get_boot_ns()	5.8		71d19214776e
BPF_FUNC_ktime_get_coarse_ns()	5.11		d05512618056
BPF_FUNC_ktime_get_ns()	4.1		d9847d310ab4
BPF_FUNC_ktime_get_tai_ns()	6.1		c8996c98f703
BPF_FUNC_l3_csum_replace()	4.1		91bc4822c3d6
BPF_FUNC_l4_csum_replace()	4.1		91bc4822c3d6
BPF_FUNC_load_hdr_opt()	5.10		0813a841566f
BPF_FUNC_loop()	5.17		e6f2dd0f8067
BPF_FUNC_lwt_push_encap()	4.18		fe94cc290f53
BPF_FUNC_lwt_seg6_action()	4.18		fe94cc290f53
BPF_FUNC_lwt_seg6_adjust_srh()	4.18		fe94cc290f53
BPF_FUNC_lwt_seg6_store_bytes()	4.18		fe94cc290f53
BPF_FUNC_map_delete_elem()	3.19		d0003ec01c66
BPF_FUNC_map_lookup_elem()	3.19		d0003ec01c66
BPF_FUNC_map_lookup_percpu_elem()	5.19		07343110b293
BPF_FUNC_map_peek_elem()	4.20		f1a2e44a3aec
BPF_FUNC_map_pop_elem()	4.20		f1a2e44a3aec
BPF_FUNC_map_push_elem()	4.20		f1a2e44a3aec
BPF_FUNC_map_update_elem()	3.19		d0003ec01c66
BPF_FUNC_msg_apply_bytes()	4.17		2a100317c9eb
BPF_FUNC_msg_cork_bytes()	4.17		91843d540a13
BPF_FUNC_msg_pop_data()	5.0		7246d8ed4dcc
BPF_FUNC_msg_pull_data()	4.17		015632bb30da
BPF_FUNC_msg_push_data()	4.20		6fff607e2f14
BPF_FUNC_msg_redirect_hash()	4.18		81110384441a
BPF_FUNC_msg_redirect_map()	4.17		4f738adba30a
BPF_FUNC_per_cpu_ptr()	5.10		eaa6bcb71ef6
BPF_FUNC_perf_event_output()	4.4	GPL	a43eec304259
BPF_FUNC_perf_event_read()	4.3	GPL	35578d798400
BPF_FUNC_perf_event_read_value()	4.15	GPL	908432ca84fc
BPF_FUNC_perf_prog_read_value()	4.15	GPL	4bebdc7a85aa
BPF_FUNC_probe_read()	4.1	GPL	2541517c32be
BPF_FUNC_probe_read_kernel()	5.5	GPL	6ae08ae3dea2
BPF_FUNC_probe_read_kernel_str()	5.5	GPL	6ae08ae3dea2
BPF_FUNC_probe_read_user()	5.5	GPL	6ae08ae3dea2
BPF_FUNC_probe_read_user_str()	5.5	GPL	6ae08ae3dea2
BPF_FUNC_probe_read_str()	4.11	GPL	a5e8c07059d0
BPF_FUNC_probe_write_user()	4.8	GPL	96ae52279594
BPF_FUNC_rc_keydown()	4.18	GPL	f4364dcfc86d
BPF_FUNC_rc_pointer_rel()	5.0	GPL	01d3240a04f4
BPF_FUNC_rc_repeat()	4.18	GPL	f4364dcfc86d
BPF_FUNC_read_branch_records()	5.6	GPL	fff7b64355ea
BPF_FUNC_redirect()	4.4		27b29f63058d
BPF_FUNC_redirect_map()	4.14		97f91a7cf04f
BPF_FUNC_redirect_neigh()	5.10		b4ab31414970
BPF_FUNC_redirect_peer()	5.10		9aa1206e8f48
BPF_FUNC_reserve_hdr_opt()	5.10		0813a841566f
BPF_FUNC_ringbuf_discard()	5.8		457f44363a88
BPF_FUNC_ringbuf_discard_dynptr()	5.19		bc34dee65a65
BPF_FUNC_ringbuf_output()	5.8		457f44363a88
BPF_FUNC_ringbuf_query()	5.8		457f44363a88
BPF_FUNC_ringbuf_reserve()	5.8		457f44363a88
BPF_FUNC_ringbuf_reserve_dynptr()	5.19		bc34dee65a65
BPF_FUNC_ringbuf_submit()	5.8		457f44363a88
BPF_FUNC_ringbuf_submit_dynptr()	5.19		bc34dee65a65
BPF_FUNC_send_signal()	5.3		8b401f9ed244
BPF_FUNC_send_signal_thread()	5.5		8482941f0906
BPF_FUNC_seq_printf()	5.7	GPL	492e639f0c22
BPF_FUNC_seq_printf_btf()	5.10		eb411377aed9
BPF_FUNC_seq_write()	5.7	GPL	492e639f0c22
BPF_FUNC_set_hash()	4.13		ded092cd73c2
BPF_FUNC_set_hash_invalid()	4.9		7a4b28c6cc9f
BPF_FUNC_set_retval()	5.18		b44123b4a3dc
BPF_FUNC_setsockopt()	4.13		8c4b4c7e9ff0
BPF_FUNC_sk_ancestor_cgroup_id()	5.7		f307fa2cb4c9
BPF_FUNC_sk_assign()	5.6		cf7fbe660f2d
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		6578171a7ff0
BPF_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		d3aa45ce6b94
BPF_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		7b15523a989b
BPF_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		808649fb787d
BPF_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
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_SCHED_CLS BPF_PROG_TYPE_SCHED_ACT	BPF_FUNC_skb_store_bytes() BPF_FUNC_skb_load_bytes() BPF_FUNC_skb_load_bytes_relative() BPF_FUNC_skb_pull_data() BPF_FUNC_csum_diff() BPF_FUNC_csum_update() BPF_FUNC_l3_csum_replace() BPF_FUNC_l4_csum_replace() BPF_FUNC_clone_redirect() BPF_FUNC_get_cgroup_classid() BPF_FUNC_skb_vlan_push() BPF_FUNC_skb_vlan_pop() BPF_FUNC_skb_change_proto() BPF_FUNC_skb_change_type() BPF_FUNC_skb_adjust_room() BPF_FUNC_skb_change_tail() 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_get_route_realm() BPF_FUNC_get_hash_recalc() BPF_FUNC_set_hash_invalid() BPF_FUNC_set_hash() BPF_FUNC_perf_event_output() BPF_FUNC_get_smp_processor_id() BPF_FUNC_skb_under_cgroup() BPF_FUNC_get_socket_cookie() BPF_FUNC_get_socket_uid() BPF_FUNC_fib_lookup() BPF_FUNC_skb_get_xfrm_state() BPF_FUNC_skb_cgroup_id() Base 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_SKB	BPF_FUNC_skb_load_bytes() BPF_FUNC_skb_load_bytes_relative() BPF_FUNC_get_socket_cookie() BPF_FUNC_get_socket_uid() Base 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_SK_MSG	BPF_FUNC_msg_redirect_map() BPF_FUNC_msg_redirect_hash() BPF_FUNC_msg_apply_bytes() BPF_FUNC_msg_cork_bytes() BPF_FUNC_msg_pull_data() BPF_FUNC_msg_push_data() BPF_FUNC_msg_pop_data() Base functions
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()
Tracing functions	BPF_FUNC_map_lookup_elem() BPF_FUNC_map_update_elem() BPF_FUNC_map_delete_elem() BPF_FUNC_probe_read() BPF_FUNC_ktime_get_boot_ns() BPF_FUNC_ktime_get_ns() BPF_FUNC_tail_call() BPF_FUNC_get_current_pid_tgid() BPF_FUNC_get_current_task() BPF_FUNC_get_current_uid_gid() BPF_FUNC_get_current_comm() BPF_FUNC_trace_printk() BPF_FUNC_get_smp_processor_id() BPF_FUNC_get_numa_node_id() BPF_FUNC_perf_event_read() BPF_FUNC_probe_write_user() BPF_FUNC_current_task_under_cgroup() BPF_FUNC_get_prandom_u32() BPF_FUNC_probe_read_str() BPF_FUNC_get_current_cgroup_id() BPF_FUNC_send_signal() BPF_FUNC_probe_read_kernel() BPF_FUNC_probe_read_kernel_str() BPF_FUNC_probe_read_user() BPF_FUNC_probe_read_user_str() BPF_FUNC_send_signal_thread() BPF_FUNC_get_ns_current_pid_tgid() BPF_FUNC_xdp_output() BPF_FUNC_get_task_stack()
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()