root/include/uapi/linux/netfilter/xt_bpf.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _XT_BPF_H
   3 #define _XT_BPF_H
   4 
   5 #include <linux/filter.h>
   6 #include <linux/limits.h>
   7 #include <linux/types.h>
   8 
   9 #define XT_BPF_MAX_NUM_INSTR    64
  10 #define XT_BPF_PATH_MAX         (XT_BPF_MAX_NUM_INSTR * sizeof(struct sock_filter))
  11 
  12 struct bpf_prog;
  13 
  14 struct xt_bpf_info {
  15         __u16 bpf_program_num_elem;
  16         struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR];
  17 
  18         /* only used in the kernel */
  19         struct bpf_prog *filter __attribute__((aligned(8)));
  20 };
  21 
  22 enum xt_bpf_modes {
  23         XT_BPF_MODE_BYTECODE,
  24         XT_BPF_MODE_FD_PINNED,
  25         XT_BPF_MODE_FD_ELF,
  26 };
  27 #define XT_BPF_MODE_PATH_PINNED XT_BPF_MODE_FD_PINNED
  28 
  29 struct xt_bpf_info_v1 {
  30         __u16 mode;
  31         __u16 bpf_program_num_elem;
  32         __s32 fd;
  33         union {
  34                 struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR];
  35                 char path[XT_BPF_PATH_MAX];
  36         };
  37 
  38         /* only used in the kernel */
  39         struct bpf_prog *filter __attribute__((aligned(8)));
  40 };
  41 
  42 #endif /*_XT_BPF_H */