Add support for all eBPF helpers

[r41k0u]

eBPF Helper Functions Checklist

This issue tracks the addition or documentation of all eBPF helper functions as per the official eBPF helper function documentation.

Please check off each helper function as it is implemented in the project.

Checklist

• bpf_map_lookup_elem
• bpf_map_update_elem
• bpf_map_delete_elem
• bpf_probe_read
• bpf_ktime_get_ns
• bpf_trace_printk
• bpf_get_prandom_u32
• bpf_get_smp_processor_id
• bpf_skb_store_bytes
• bpf_l3_csum_replace
• bpf_l4_csum_replace
• bpf_tail_call
• bpf_clone_redirect
• bpf_get_current_pid_tgid
• bpf_get_current_uid_gid
• bpf_get_current_comm
• bpf_get_cgroup_classid
• bpf_skb_vlan_push
• bpf_skb_vlan_pop
• bpf_skb_get_tunnel_key
• bpf_skb_set_tunnel_key
• bpf_perf_event_read
• bpf_redirect
• bpf_get_route_realm
• bpf_perf_event_output
• bpf_skb_load_bytes
• bpf_get_stackid
• bpf_csum_diff
• bpf_skb_get_tunnel_opt
• bpf_skb_set_tunnel_opt
• bpf_skb_change_proto
• bpf_skb_change_type
• bpf_skb_under_cgroup
• bpf_get_hash_recalc
• bpf_get_current_task
• bpf_probe_write_user
• bpf_current_task_under_cgroup
• bpf_skb_change_tail
• bpf_skb_pull_data
• bpf_csum_update
• bpf_set_hash_invalid
• bpf_get_numa_node_id
• bpf_skb_change_head
• bpf_xdp_adjust_head
• bpf_probe_read_str
• bpf_get_socket_cookie
• bpf_get_socket_uid
• bpf_set_hash
• bpf_setsockopt
• bpf_skb_adjust_room
• bpf_redirect_map
• bpf_sk_redirect_map
• bpf_sock_map_update
• bpf_xdp_adjust_meta
• bpf_perf_event_read_value
• bpf_perf_prog_read_value
• bpf_getsockopt
• bpf_override_return
• bpf_sock_ops_cb_flags_set
• bpf_msg_redirect_map
• bpf_msg_apply_bytes
• bpf_msg_cork_bytes
• bpf_msg_pull_data
• bpf_bind
• bpf_xdp_adjust_tail
• bpf_skb_get_xfrm_state
• bpf_get_stack
• bpf_skb_load_bytes_relative
• bpf_fib_lookup
• bpf_sock_hash_update
• bpf_msg_redirect_hash
• bpf_sk_redirect_hash
• bpf_lwt_push_encap
• bpf_lwt_seg6_store_bytes
• bpf_lwt_seg6_action
• bpf_lwt_seg6_adjust_srh
• bpf_rc_repeat
• bpf_rc_keydown
• bpf_skb_cgroup_id
• bpf_get_current_cgroup_id
• bpf_get_local_storage
• bpf_sk_select_reuseport
• bpf_skb_ancestor_cgroup_id
• bpf_sk_lookup_tcp
• bpf_sk_lookup_udp
• bpf_sk_release
• bpf_map_push_elem
• bpf_map_pop_elem
• bpf_map_peek_elem
• bpf_msg_push_data
• bpf_msg_pop_data
• bpf_rc_pointer_rel
• bpf_spin_lock
• bpf_spin_unlock
• bpf_sk_fullsock
• bpf_tcp_sock
• bpf_skb_ecn_set_ce
• bpf_get_listener_sock
• bpf_skc_lookup_tcp
• bpf_tcp_check_syncookie
• bpf_sysctl_get_name
• bpf_sysctl_get_current_value
• bpf_sysctl_get_new_value
• bpf_sysctl_set_new_value
• bpf_strtol
• bpf_strtoul
• bpf_sk_storage_get
• bpf_sk_storage_delete
• bpf_send_signal
• bpf_tcp_gen_syncookie
• bpf_skb_output
• bpf_probe_read_user
• bpf_probe_read_kernel
• bpf_probe_read_user_str
• bpf_probe_read_kernel_str
• bpf_tcp_send_ack
• bpf_send_signal_thread
• bpf_jiffies64
• bpf_read_branch_records
• bpf_get_ns_current_pid_tgid
• bpf_xdp_output
• bpf_get_netns_cookie
• bpf_get_current_ancestor_cgroup_id
• bpf_sk_assign
• bpf_ktime_get_boot_ns
• bpf_seq_printf
• bpf_seq_write
• bpf_sk_cgroup_id
• bpf_sk_ancestor_cgroup_id
• bpf_ringbuf_output
• bpf_ringbuf_reserve
• bpf_ringbuf_submit
• bpf_ringbuf_discard
• bpf_ringbuf_query
• bpf_csum_level
• bpf_skc_to_tcp6_sock
• bpf_skc_to_tcp_sock
• bpf_skc_to_tcp_timewait_sock
• bpf_skc_to_tcp_request_sock
• bpf_skc_to_udp6_sock
• bpf_get_task_stack
• bpf_load_hdr_opt
• bpf_store_hdr_opt
• bpf_reserve_hdr_opt
• bpf_inode_storage_get
• bpf_inode_storage_delete
• bpf_d_path
• bpf_copy_from_user
• bpf_snprintf_btf
• bpf_seq_printf_btf
• bpf_skb_cgroup_classid
• bpf_redirect_neigh
• bpf_per_cpu_ptr
• bpf_this_cpu_ptr
• bpf_redirect_peer
• bpf_task_storage_get
• bpf_task_storage_delete
• bpf_get_current_task_btf
• bpf_bprm_opts_set
• bpf_ktime_get_coarse_ns
• bpf_ima_inode_hash
• bpf_sock_from_file
• bpf_check_mtu
• bpf_for_each_map_elem
• bpf_snprintf
• bpf_sys_bpf
• bpf_btf_find_by_name_kind
• bpf_sys_close
• bpf_timer_init
• bpf_timer_set_callback
• bpf_timer_start
• bpf_timer_cancel
• bpf_get_func_ip
• bpf_get_attach_cookie
• bpf_task_pt_regs
• bpf_get_branch_snapshot
• bpf_trace_vprintk
• bpf_skc_to_mptcp_sock
• bpf_dynptr_from_mem
• bpf_ringbuf_submit_dynptr
• bpf_ringbuf_discard_dynptr
• bpf_dynptr_read
• bpf_dynptr_write
• bpf_dynptr_data
• bpf_tcp_raw_gen_syncookie_ipv6
• bpf_tcp_raw_check_syncookie_ipv6
• bpf_ktime_get_tai_ns
• bpf_user_ringbuf_drain
• bpf_cros_ec_cmd_xfer
• bpf_task_vma
• bpf_skc_to_tcp_sock2
• bpf_kfunc_call
• bpf_xdp_get_buff_len
• bpf_xdp_load_bytes
• bpf_xdp_store_bytes
• bpf_copy_from_user_task
• bpf_skb_set_tstamp
• bpf_ima_file_hash
• bpf_sock_hash_release
• bpf_kptr_xchg
• bpf_map_lookup_percpu_elem
• bpf_skc_to_unix_sock
• bpf_kallsyms_lookup_name
• bpf_find_vma
• bpf_loop
• bpf_strncmp
• bpf_get_func_arg
• bpf_get_func_ret
• bpf_get_retval
• bpf_set_retval
• bpf_xdp_get_buff_addr
• bpf_get_branch_count

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Reference: eBPF Helper Functions Documentation