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Syscall command 'BPF_TASK_FD_QUERY'
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Perf event array helpers
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bpf_tail_call
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Ring buffer helper
Ring buffer helper
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Socket map helpers
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Task storage helpers
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Local cGroup storage helpers
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bpf_get_local_storage
Global cGroup storage helpers
Global cGroup storage helpers
bpf_cgrp_storage_get
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User ring buffer
User ring buffer
bpf_user_ringbuf_drain
Probe and trace helpers
Probe and trace helpers
bpf_get_attach_cookie
Memory helpers
Memory helpers
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Process influencing helpers
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Tracing helpers
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bpf_perf_prog_read_value
Information helpers
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Time helpers
Time helpers
bpf_ktime_get_ns
bpf_jiffies64
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bpf_ktime_get_coarse_ns
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Process info helpers
Process info helpers
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bpf_task_pt_regs
CPU info helpers
CPU info helpers
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bpf_read_branch_records
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Print helpers
Print helpers
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Iterator print helpers
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Network helpers
Network helpers
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Socket buffer helpers
Socket buffer helpers
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bpf_skb_get_tunnel_key
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bpf_skb_pull_data
bpf_skb_adjust_room
bpf_skb_change_head
bpf_skb_get_xfrm_state
bpf_skb_load_bytes_relative
bpf_skb_cgroup_id
bpf_skb_ancestor_cgroup_id
bpf_skb_ecn_set_ce
bpf_skb_cgroup_classid
bpf_skb_set_tstamp
bpf_set_hash
bpf_get_hash_recalc
bpf_set_hash_invalid
Checksum helpers
Checksum helpers
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bpf_csum_diff
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Redirect helpers
Redirect helpers
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bpf_redirect
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bpf_redirect_neigh
bpf_sk_select_reuseport
bpf_sk_assign
XDP helpers
XDP helpers
bpf_xdp_adjust_head
bpf_xdp_adjust_tail
bpf_xdp_adjust_meta
bpf_xdp_get_buff_len
bpf_xdp_load_bytes
bpf_xdp_store_bytes
Socket message helpers
Socket message helpers
bpf_msg_apply_bytes
bpf_msg_cork_bytes
bpf_msg_pull_data
bpf_msg_push_data
bpf_msg_pop_data
LWT helpers
LWT helpers
bpf_lwt_push_encap
bpf_lwt_seg6_store_bytes
bpf_lwt_seg6_adjust_srh
bpf_lwt_seg6_action
SYN Cookie helpers
SYN Cookie helpers
bpf_tcp_check_syncookie
bpf_tcp_gen_syncookie
bpf_tcp_raw_gen_syncookie_ipv4
bpf_tcp_raw_gen_syncookie_ipv6
bpf_tcp_raw_check_syncookie_ipv4
bpf_tcp_raw_check_syncookie_ipv6
Socket helpers
Socket helpers
bpf_sk_lookup_tcp
bpf_sk_lookup_udp
bpf_sk_release
bpf_sk_fullsock
bpf_sk_cgroup_id
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bpf_get_socket_cookie
bpf_get_socket_uid
bpf_setsockopt
bpf_getsockopt
bpf_sock_ops_cb_flags_set
bpf_tcp_sock
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bpf_skc_to_tcp_sock
bpf_skc_to_tcp_timewait_sock
bpf_skc_to_tcp_request_sock
bpf_skc_to_udp6_sock
bpf_skc_to_mptcp_sock
bpf_skc_to_unix_sock
bpf_bind
Socket ops helpers
Socket ops helpers
bpf_load_hdr_opt
bpf_store_hdr_opt
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Infrared related helpers
Infrared related helpers
bpf_rc_repeat
bpf_rc_keydown
bpf_rc_pointer_rel
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Syscall helpers
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bpf_sys_close
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LSM helpers
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bpf_ima_inode_hash
bpf_ima_file_hash
Sysctl helpers
Sysctl helpers
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bpf_sysctl_get_new_value
bpf_sysctl_set_new_value
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Dynptr
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Loop helpers
bpf_loop
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bpf_strtol
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BPF_PROG_GET_NEXT_ID
BPF_MAP_GET_NEXT_ID
BPF_PROG_GET_FD_BY_ID
BPF_MAP_GET_FD_BY_ID
BPF_OBJ_GET_INFO_BY_FD
BPF_PROG_QUERY
BPF_BTF_GET_FD_BY_ID
BPF_TASK_FD_QUERY
BPF_BTF_GET_NEXT_ID
BPF_LINK_GET_FD_BY_ID
BPF_LINK_GET_NEXT_ID
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Link commands
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cGroup resource stats KFuncs
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Key signature verification KFuncs
Key signature verification KFuncs
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File related kfuncs
File related kfuncs
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CPU mask KFuncs
CPU mask KFuncs
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Generic KFuncs
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BPF Arena KFuncs
BPF Arena KFuncs
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BPF task KFuncs
BPF task KFuncs
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bpf_task_release
BPF cGroup KFuncs
BPF cGroup KFuncs
bpf_rbtree_add_impl
bpf_rbtree_first
bpf_rbtree_remove
Kfuncs for acquiring and releasing cGroup references
Kfuncs for acquiring and releasing cGroup references
bpf_cgroup_acquire
bpf_cgroup_release
bpf_cgroup_ancestor
bpf_cgroup_from_id
Kfuncs for querying tasks
Kfuncs for querying tasks
bpf_task_under_cgroup
bpf_task_get_cgroup1
bpf_task_from_pid
Kfuncs for casting pointers
Kfuncs for casting pointers
bpf_cast_to_kern_ctx
bpf_rdonly_cast
Kfuncs for taking and releasing RCU read locks
Kfuncs for taking and releasing RCU read locks
bpf_rcu_read_lock
bpf_rcu_read_unlock
Kfuncs for dynamic pointer slices
Kfuncs for dynamic pointer slices
bpf_dynptr_slice
bpf_dynptr_slice_rdwr
Kfuncs for open coded numeric iterators
Kfuncs for open coded numeric iterators
bpf_iter_num_new
bpf_iter_num_next
bpf_iter_num_destroy
Kfuncs for open coded virtual memory area iterators
Kfuncs for open coded virtual memory area iterators
bpf_iter_task_vma_new
bpf_iter_task_vma_next
bpf_iter_task_vma_destroy
Kfuncs for bits
Kfuncs for bits
bpf_iter_bits_new
bpf_iter_bits_next
bpf_iter_bits_destroy
Kfuncs for open coded task cGroup iterators
Kfuncs for open coded task cGroup iterators
bpf_iter_css_task_new
bpf_iter_css_task_next
bpf_iter_css_task_destroy
Kfuncs for open coded cGroup iterators
Kfuncs for open coded cGroup iterators
bpf_iter_css_new
bpf_iter_css_next
bpf_iter_css_destroy
Kfuncs for open coded task iterators
Kfuncs for open coded task iterators
bpf_iter_task_new
bpf_iter_task_next
bpf_iter_task_destroy
Kfuncs for dynamic pointers
Kfuncs for dynamic pointers
bpf_dynptr_adjust
bpf_dynptr_is_null
bpf_dynptr_is_rdonly
bpf_dynptr_size
bpf_dynptr_clone
Misc KFuncs
Misc KFuncs
bpf_map_sum_elem_count
bpf_get_fsverity_digest
Preemption kfuncs
Preemption kfuncs
bpf_preempt_disable
bpf_preempt_enable
Work-queue KFuncs
Work-queue KFuncs
bpf_wq_init
bpf_wq_set_callback_impl
bpf_wq_start
XDP metadata kfuncs
XDP metadata kfuncs
bpf_xdp_metadata_rx_timestamp
bpf_xdp_metadata_rx_hash
bpf_xdp_metadata_rx_vlan_tag
XDP/SKB dynamic pointer kfuncs
XDP/SKB dynamic pointer kfuncs
bpf_dynptr_from_skb
bpf_dynptr_from_xdp
Socket related kfuncs
Socket related kfuncs
bpf_sock_addr_set_sun_path
bpf_sock_destroy
Network crypto kfuncs
Network crypto kfuncs
bpf_crypto_ctx_create
bpf_crypto_ctx_acquire
bpf_crypto_ctx_release
bpf_crypto_decrypt
bpf_crypto_encrypt
BBR congestion control kfuncs
BBR congestion control kfuncs
bbr_init
bbr_main
bbr_sndbuf_expand
bbr_undo_cwnd
bbr_cwnd_event
bbr_ssthresh
bbr_min_tso_segs
bbr_set_state
Cubic TCP congestion control kfuncs
Cubic TCP congestion control kfuncs
cubictcp_init
cubictcp_recalc_ssthresh
cubictcp_cong_avoid
cubictcp_state
cubictcp_cwnd_event
cubictcp_acked
DC TCP congestion control kfuncs
DC TCP congestion control kfuncs
dctcp_init
dctcp_update_alpha
dctcp_cwnd_event
dctcp_ssthresh
dctcp_cwnd_undo
dctcp_state
TCP Reno congestion control kfuncs
TCP Reno congestion control kfuncs
tcp_reno_ssthresh
tcp_reno_cong_avoid
tcp_reno_undo_cwnd
tcp_slow_start
tcp_cong_avoid_ai
Foo over UDP KFuncs
Foo over UDP KFuncs
bpf_skb_set_fou_encap
bpf_skb_get_fou_encap
SYN Cookie KFuncs
SYN Cookie KFuncs
bpf_sk_assign_tcp_reqsk
Connection tracking KFuncs
Connection tracking KFuncs
bpf_ct_set_nat_info
bpf_xdp_ct_alloc
bpf_xdp_ct_lookup
bpf_skb_ct_alloc
bpf_skb_ct_lookup
bpf_ct_insert_entry
bpf_ct_release
bpf_ct_set_timeout
bpf_ct_change_timeout
bpf_ct_set_status
bpf_ct_change_status
XDP KFuncs
XDP KFuncs
bpf_xdp_flow_lookup
XFRM KFuncs
XFRM KFuncs
bpf_skb_get_xfrm_info
bpf_skb_set_xfrm_info
bpf_xdp_get_xfrm_state
bpf_xdp_xfrm_state_release
HID Kfuncs
HID Kfuncs
hid_bpf_get_data
hid_bpf_attach_prog
hid_bpf_allocate_context
hid_bpf_release_context
hid_bpf_hw_request
hid_bpf_hw_output_report
hid_bpf_input_report
hid_bpf_try_input_report
KProbe session Kfuncs
KProbe session Kfuncs
bpf_session_cookie
bpf_session_is_return
eBPF Timeline
eBPF Timeline
eBPF libraries
eBPF libraries
Libbpf
Libbpf
Userspace
Userspace
Misc libbpf functions
Misc libbpf functions
libbpf_major_version
libbpf_minor_version
libbpf_strerror
eBPF side
eBPF side
BTF map macros / types
BTF map macros / types
__uint
__type
__array
__ulong
enum libbpf_pin_type
Attributes
Attributes
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__kptr_untrusted
__kptr
__percpu_kptr
Global function attributes
Global function attributes
__arg_ctx
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__arg_nullable
__arg_trusted
__arg_arena
SEC
KERNEL_VERSION
offsetof
container_of
barrier
barrier_var
__bpf_unreachable
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bpf_ksym_exists
Printf macros
Printf macros
BPF_SEQ_PRINTF
BPF_SNPRINTF
bpf_printk
Concepts
Libxdp
Libxdp
Concept
Manage programs
Manage programs
Load
Load
xdp_program__from_bpf_obj
xdp_program__find_file
xdp_program__open_file
xdp_program__from_fd
xdp_program__from_id
xdp_program__from_pin
Metadata
Metadata
xdp_program__run_prio
xdp_program__set_run_prio
xdp_program__chain_call_enabled
xdp_program__set_chain_call_enabled
xdp_program__print_chain_call_actions
Dispatcher
Dispatcher
xdp_multiprog__get_from_ifindex
xdp_multiprog__next_prog
xdp_multiprog__close
xdp_multiprog__detach
xdp_multiprog__attach_mode
xdp_multiprog__main_prog
xdp_multiprog__hw_prog
xdp_multiprog__is_legacy
AF_XDP sockets
AF_XDP sockets
Control path
Control path
Umem Area
Umem Area
xsk_umem__create
xsk_umem__create_with_fd
xsk_umem__delete
xsk_umem__fd
xsk_umem__get_data
xsk_umem__extract_addr
xsk_umem__extract_offset
xsk_umem__add_offset_to_addr
Sockets
Sockets
xsk_socket__create
xsk_socket__create_shared
xsk_socket__delete
xsk_socket__fd
xsk_setup_xdp_prog
xsk_socket__update_xskmap
Data path
Data path
Producer rings
Producer rings
xsk_ring_prod__reserve
xsk_ring_prod__submit
xsk_ring_prod__fill_addr
xsk_ring_prod__tx_desc
xsk_ring_prod__needs_wakeup
Consumer rings
Consumer rings
xsk_ring_cons__peek
xsk_ring_cons__cancel
xsk_ring_cons__release
xsk_ring_cons__comp_addr
xsk_ring_cons__rx_desc
Concepts
Concepts
BPF CO-RE
BTF
ELF
FAQ
BPF Syscall
BPF_TASK_FD_QUERY
command
v4.18
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