sim/bpf/bpf-helpers.def

/* BPF helpers database.
   Copyright (C) 2019-2021 Free Software Foundation, Inc.

This file is part of the GNU simulator.

GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

/* This file contains the definition of the helpers that are available
   to BPF programs.

   The primary source for information on kernel helpers is the
   linux/include/uapi/linux/bpf.h file in the Linux source tree.
   Please keep this database in sync.

   The first column is the first kernel version featuring the helper
   function.  This should be an enumerate from bpf_kernel_version,
   defined in bpf-opts.h.  Note that the backend assumes that helpers
   never get deprecated in the kernel.  If that eventually happens,
   then we will need to use a bitmask here instead of an enumerate.

   The second column is the constant-name for the helper.
   The third column is the program-name of the helper.

   The fourth column is a list of names describing the types of the
   values returned and accepted by the helper, in one of these forms:

     TYPES (type1, type2, ..., 0)
     VTYPES (type1, type2, ..., 0)

   VTYPES should be used should the helper accept a variable number of
   arguments, TYPES otherwise.  The valid type names are:

     `vt' for void.
     `it' for signed int.
     `ut' for unsigned int.
     `pt' for void*.
     `cpt' for const void*.
     `st' for short int.
     `ust' for unsigned short int.
     `cst' for const char *.
     `ullt' for unsigned long long.
     `llt' for long long.
     `u32t' for uint32.
     `u64t' for uint64.

   In types descriptions, the firt entry corresponds to the value
   returned by the helper.  Subsequent names correspond to the helper
   arguments.  Finally, a 0 should close the list.

   VERY IMPORTANT: the helper entries should be listed in the same
   order than in the definition of __BPF_FUNC_MAPPER in
   linux/include/uapi/linux/bpf.h!  */

DEF_HELPER (LINUX_V4_0, MAP_LOOKUP_ELEM, map_lookup_elem, TYPES (pt, pt, pt, 0))
DEF_HELPER (LINUX_V4_0, MAP_UPDATE_ELEM, map_update_elem, TYPES (it, pt, pt, pt, ullt, 0))
DEF_HELPER (LINUX_V4_0, MAP_DELETE_ELEM, map_delete_elem, TYPES (it, pt, pt, 0))
DEF_HELPER (LINUX_V4_1, PROBE_READ, probe_read, TYPES (it, pt, ut, cpt, 0))
DEF_HELPER (LINUX_V4_1, KTIME_GET_NS, ktime_get_ns, TYPES (ullt, 0))
DEF_HELPER (LINUX_V4_1, TRACE_PRINTK, trace_printk, VTYPES (it, cst, it, 0))
DEF_HELPER (LINUX_V4_1, GET_PRANDOM_U32, get_prandom_u32, TYPES (ullt, 0))
DEF_HELPER (LINUX_V4_1, GET_SMP_PROCESSOR_ID, get_smp_processor_id, TYPES (ullt, 0))
DEF_HELPER (LINUX_V4_1, SKB_STORE_BYTES, skb_store_bytes, TYPES (it, pt, it, pt, it, it, 0))
DEF_HELPER (LINUX_V4_1, L3_CSUM_REPLACE, l3_csum_replace, TYPES (it, pt, it, it ,it ,it, 0))
DEF_HELPER (LINUX_V4_1, L4_CSUM_REPLACE, l4_csum_replace, TYPES (it, pt, it, it, it, it, 0))
DEF_HELPER (LINUX_V4_2, TAIL_CALL, tail_call, TYPES (vt, pt, pt, it, 0))
DEF_HELPER (LINUX_V4_2, CLONE_REDIRECT, clone_redirect, TYPES (it, pt, it, it, 0))
DEF_HELPER (LINUX_V4_2, GET_CURRENT_PID_TGID, get_current_pid_tgid, TYPES (ullt, 0))
DEF_HELPER (LINUX_V4_2, GET_CURRENT_UID_GID, get_current_uid_gid, TYPES (ullt, 0))
DEF_HELPER (LINUX_V4_2, GET_CURRENT_COMM, get_current_comm, TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_3, GET_CGROUP_CLASSID, get_cgroup_classid, TYPES (it, pt, 0))
DEF_HELPER (LINUX_V4_3, SKB_VLAN_PUSH, skb_vlan_push, TYPES (it, pt, st, ust, 0))
DEF_HELPER (LINUX_V4_3, SKB_VLAN_POP, skb_vlan_pop, TYPES (it, pt, 0))
DEF_HELPER (LINUX_V4_3, SKB_GET_TUNNEL_KEY, skb_get_tunnel_key, TYPES (it, pt, pt, it, it, 0))
DEF_HELPER (LINUX_V4_3, SKB_SET_TUNNEL_KEY, skb_set_tunnel_key, TYPES (it, pt, pt, it, it, 0))
DEF_HELPER (LINUX_V4_3, PERF_EVENT_READ, perf_event_read, TYPES (ullt, pt, ullt, 0))
DEF_HELPER (LINUX_V4_4, REDIRECT, redirect, TYPES (it, it, it, 0))
DEF_HELPER (LINUX_V4_4, GET_ROUTE_REALM, get_route_realm, TYPES (ut, pt, 0))
DEF_HELPER (LINUX_V4_4, PERF_EVENT_OUTPUT, perf_event_output, \
	    TYPES (it, pt, pt, ullt, pt, it, 0))
DEF_HELPER (LINUX_V4_5, SKB_LOAD_BYTES, skb_load_bytes, TYPES (it, pt, it, pt, it, 0))
DEF_HELPER (LINUX_V4_6, GET_STACKID, get_stackid, TYPES (it, pt, pt, it, 0))
DEF_HELPER (LINUX_V4_6, CSUM_DIFF, csum_diff, TYPES (it, pt, it, pt, it, it, 0))
DEF_HELPER (LINUX_V4_6, SKB_GET_TUNNEL_OPT, skb_get_tunnel_opt, TYPES (it, pt, pt, it, 0))
DEF_HELPER (LINUX_V4_6, SKB_SET_TUNNEL_OPT, skb_set_tunnel_opt, TYPES (it, pt, pt, it, 0))
DEF_HELPER (LINUX_V4_8, SKB_CHANGE_PROTO, skb_change_proto, TYPES (it, pt, st, u64t, 0))
DEF_HELPER (LINUX_V4_8, SKB_CHANGE_TYPE, skb_change_type, TYPES (it, pt, u32t, 0))
DEF_HELPER (LINUX_V4_8, SKB_UNDER_CGROUP, skb_under_cgroup, TYPES (it, pt, pt, it, 0))
DEF_HELPER (LINUX_V4_8, GET_HASH_RECALC, get_hash_recalc, TYPES (ut, pt, 0))
DEF_HELPER (LINUX_V4_8, GET_CURRENT_TASK, get_current_task, TYPES (ullt, 0))
DEF_HELPER (LINUX_V4_8, PROBE_WRITE_USER, probe_write_user, TYPES (it, pt, cpt, ut, 0))
DEF_HELPER (LINUX_V4_9, CURRENT_TASK_UNDER_CGROUP, current_task_under_cgroup, \
	    TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_9, SKB_CHANGE_TAIL, skb_change_tail, TYPES (it, pt, ut, u64t, 0))
DEF_HELPER (LINUX_V4_9, SKB_PULL_DATA, skb_pull_data, TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_9, CSUM_UPDATE, csum_update, TYPES (llt, pt, u32t, 0))
DEF_HELPER (LINUX_V4_9, SET_HASH_INVALID, set_hash_invalid, TYPES (vt, pt, 0))
DEF_HELPER (LINUX_V4_10, GET_NUMA_NODE_ID, get_numa_node_id, TYPES (it, 0))
DEF_HELPER (LINUX_V4_10, SKB_CHANGE_HEAD, skb_change_head, TYPES (it, pt, it, it, 0))
DEF_HELPER (LINUX_V4_10, XDP_ADJUST_HEAD, xdp_adjust_head, TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_11, PROBE_READ_STR, probe_read_str, TYPES (it, pt, u32t, cpt, 0))
DEF_HELPER (LINUX_V4_12, GET_SOCKET_COOKIE, get_socket_cookie, TYPES (it, pt, 0))
DEF_HELPER (LINUX_V4_12, GET_SOCKET_UID, get_socket_uid, TYPES (ut, pt, 0))
DEF_HELPER (LINUX_V4_13, SET_HASH, set_hash, TYPES (ut, pt, u32t, 0))
DEF_HELPER (LINUX_V4_13, SETSOCKOPT, setsockopt, TYPES (it, pt, it, it, pt, it, 0))
DEF_HELPER (LINUX_V4_13, SKB_ADJUST_ROOM, skb_adjust_room, TYPES (it, pt, st, u32t, ullt, 0))
DEF_HELPER (LINUX_V4_14, REDIRECT_MAP, redirect_map, TYPES (it, pt, it, it, 0))
DEF_HELPER (LINUX_V4_14, SK_REDIRECT_MAP, sk_redirect_map, TYPES (it, pt, pt, it, it, 0))
DEF_HELPER (LINUX_V4_14, SOCK_MAP_UPDATE, sock_map_update, TYPES (it, pt, pt, pt, ullt, 0))
DEF_HELPER (LINUX_V4_15, XDP_ADJUST_META, xdp_adjust_meta, TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_15, PERF_EVENT_READ_VALUE, perf_event_read_value,
	    TYPES (it, pt, ullt, pt, ut, 0))
DEF_HELPER (LINUX_V4_15, PERF_PROG_READ_VALUE, perf_prog_read_value,
	    TYPES (it, pt, pt, ut, 0))
DEF_HELPER (LINUX_V4_15, GETSOCKOPT, getsockopt, TYPES (it, pt, it, it, pt, it, 0))

DEF_HELPER (LINUX_V4_16, OVERRIDE_RETURN, override_return, TYPES (it, pt, ult, 0))
DEF_HELPER (LINUX_V4_16, SOCK_OPS_CB_FLAGS_SET, sock_ops_cb_flags_set, TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_17, MSG_REDIRECT_MAP, msg_redirect_map, TYPES (it, pt, pt, it, it, 0))
DEF_HELPER (LINUX_V4_17, MSG_APPLY_BYTES, msg_apply_bytes, TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_17, MSG_CORK_BYTES, msg_cork_bytes, TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_17, MSG_PULL_DATA, msg_pull_data, TYPES (it, pt, it, it, it, 0))
DEF_HELPER (LINUX_V4_17, BIND, bind, TYPES (it, pt, pt, it, 0))
DEF_HELPER (LINUX_V4_18, XDP_ADJUST_TAIL, xdp_adjust_tail, TYPES (it, pt, it, 0))
DEF_HELPER (LINUX_V4_18, SKB_GET_XFRM_STATE,
	    skb_get_xfrm_state, TYPES (it, pt, it, pt, it, it, 0))
DEF_HELPER (LINUX_V4_18, GET_STACK, get_stack, TYPES (it, pt, pt, it, it, 0))
DEF_HELPER (LINUX_V4_18, SKB_LOAD_BYTES_RELATIVE, skb_load_bytes_relative,
	    TYPES (it, pt, it, pt, it, ut, 0))
DEF_HELPER (LINUX_V4_18, FIB_LOOKUP, fib_lookup, TYPES (it, pt, pt, it, ut, 0))
DEF_HELPER (LINUX_V4_18, SOCK_HASH_UPDATE, sock_hash_update, TYPES (it, pt, pt, pt, ullt, 0))
DEF_HELPER (LINUX_V4_18, MSG_REDIRECT_HASH, msg_redirect_hash, TYPES (it, pt, pt, pt, it, 0))
DEF_HELPER (LINUX_V4_18, SK_REDIRECT_HASH, sk_redirect_hash, TYPES (it, pt, pt, pt, it, 0))
DEF_HELPER (LINUX_V4_18, LWT_PUSH_ENCAP, lwt_push_encap, TYPES (it, pt, ut, pt, ut, 0))
DEF_HELPER (LINUX_V4_18, LWT_SEG6_STORE_BYTES, lwt_seg6_store_bytes,
	    TYPES (it, pt, ut, pt, ut, 0))
DEF_HELPER (LINUX_V4_18, LWT_SEG6_ADJUST_SRH, lwt_seg6_adjust_srh, TYPES (it, pt, ut, ut, 0))
DEF_HELPER (LINUX_V4_18, LWT_SEG6_ACTION, lwt_seg6_action, TYPES (it, pt, ut, pt, ut, 0))
DEF_HELPER (LINUX_V4_18, RC_REPEAT, rc_repeat, TYPES (it, pt, 0))
DEF_HELPER (LINUX_V4_18, RC_KEYDOWN, rc_keydown, TYPES (it, pt, ut, ullt, ut, 0))
DEF_HELPER (LINUX_V4_18, SKB_CGROUP_ID, skb_cgroup_id, TYPES (ullt, pt, 0))
DEF_HELPER (LINUX_V4_18, GET_CURRENT_CGROUP_ID, get_current_cgroup_id, TYPES (ullt, 0))
DEF_HELPER (LINUX_V4_19, GET_LOCAL_STORAGE, get_local_storage, TYPES (pt, pt, ullt, 0))
DEF_HELPER (LINUX_V4_19, SK_SELECT_REUSEPORT, sk_select_reuseport,
	    TYPES (it, pt, pt, pt, ut, 0))
DEF_HELPER (LINUX_V4_19, SKB_ANCESTOR_CGROUP_ID, skb_ancestor_cgroup_id,
	    TYPES (ullt, pt, it, 0))
DEF_HELPER (LINUX_V4_20, SK_LOOKUP_TCP, sk_lookup_tcp, TYPES (pt, pt, pt, it, ullt, ullt, 0))
DEF_HELPER (LINUX_V4_20, SK_LOOKUP_UDP, sk_lookup_udp, TYPES (pt, pt, pt, it, ullt, ullt, 0))
DEF_HELPER (LINUX_V4_20, SK_RELEASE, sk_release, TYPES (it, pt, 0))
DEF_HELPER (LINUX_V4_20, MAP_PUSH_ELEM, map_push_elem, TYPES (it, pt, pt, ullt, 0))
DEF_HELPER (LINUX_V4_20, MAP_POP_ELEM, map_pop_elem, TYPES (it, pt, pt, 0))
DEF_HELPER (LINUX_V4_20, MAP_PEEK_ELEM, map_peek_elem, TYPES (it, pt, pt, 0))
DEF_HELPER (LINUX_V4_20, MSG_PUSH_DATA, msg_push_data, TYPES (it, pt, it, it, it, 0))
DEF_HELPER (LINUX_V5_0, MSG_POP_DATA, msg_pop_data, TYPES (it, pt, it, it, it, 0))
DEF_HELPER (LINUX_V5_0, RC_POINTER_REL, rc_pointer_rel, TYPES (it, pt, it, it, 0))
DEF_HELPER (LINUX_V5_1, SPIN_LOCK, spin_lock, TYPES (vt, pt, 0))
DEF_HELPER (LINUX_V5_1, SPIN_UNLOCK, spin_unlock, TYPES (vt, pt, 0))
DEF_HELPER (LINUX_V5_1, SK_FULLSOCK, sk_fullsock, TYPES (pt, pt, 0))
DEF_HELPER (LINUX_V5_1, TCP_SOCK, tcp_sock, TYPES (pt, pt, 0))
DEF_HELPER (LINUX_V5_1, SKB_ECN_SET_CE, skb_ecn_set_ce, TYPES (it, pt, 0))
DEF_HELPER (LINUX_V5_1, GET_LISTENER_SOCK, get_listener_sock, TYPES (pt, pt, 0))
DEF_HELPER (LINUX_V5_2, SKC_LOOKUP_TCP, skc_lookup_tcp,
	    TYPES (pt, pt, pt, u32t, u64t, u64t, 0))
DEF_HELPER (LINUX_V5_2, TCP_CHECK_SYNCOOKIE, tcp_check_syncookie,
	    TYPES (it, pt, pt, u32t, pt, u32t, 0))
DEF_HELPER (LINUX_V5_2, SYSCTL_GET_NAME, sysctl_get_name, TYPES (it, pt, pt, ullt, u64t, 0))
DEF_HELPER (LINUX_V5_2, SYSCTL_GET_CURRENT_VALUE, sysctl_get_current_value,
	    TYPES (it, pt, pt, ullt, 0))
DEF_HELPER (LINUX_V5_2, SYSCTL_GET_NEW_VALUE, sysctl_get_new_value,
	    TYPES (it, pt, pt, ullt, 0))
DEF_HELPER (LINUX_V5_2, SYSCTL_SET_NEW_VALUE, sysctl_set_new_value,
	    TYPES (it, pt, pt, ullt, 0))
DEF_HELPER (LINUX_V5_2, STRTOL, strtol, TYPES (it, cst, ullt, u64t, pt, 0))
DEF_HELPER (LINUX_V5_2, STRTOUL, strtoul, TYPES (it, pt, ullt, u64t, pt, 0))
DEF_HELPER (LINUX_V5_2, SK_STORAGE_GET, sk_storage_get, TYPES (pt, pt, pt, pt, u64t, 0))
DEF_HELPER (LINUX_V5_2, SK_STORAGE_DELETE, sk_storage_delete, TYPES (it, pt, pt, 0))

/*
Local variables:
mode:c
End:
*/