granicus.if.org Git - strace/blob - bpf_filter.h

   1 /*
   2  * Classic BPF filter block.
   3  *
   4  * Copyright (c) 2015-2018 Dmitry V. Levin <ldv@altlinux.org>
   5  * All rights reserved.
   6  *
   7  * SPDX-License-Identifier: LGPL-2.1-or-later
   8  */
   9
  10 #ifndef STRACE_BPF_FILTER_H
  11 # define STRACE_BPF_FILTER_H
  12
  13 struct bpf_filter_block {
  14         uint16_t code;
  15         uint8_t jt;
  16         uint8_t jf;
  17         uint32_t k;
  18 };
  19
  20 typedef bool (*print_bpf_filter_fn)(const struct bpf_filter_block *);
  21
  22 extern void
  23 print_bpf_fprog(struct tcb *const tcp, const kernel_ulong_t addr,
  24                 const unsigned short len, const print_bpf_filter_fn print_k);
  25
  26 extern void
  27 decode_bpf_fprog(struct tcb *const tcp, const kernel_ulong_t addr,
  28                  const print_bpf_filter_fn print_k);
  29
  30 #endif /* !STRACE_BPF_FILTER_H */