| /* |
| * Classic BPF filter block. |
| * |
| * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef STRACE_BPF_FILTER_H |
| #define STRACE_BPF_FILTER_H |
| |
| struct bpf_filter_block { |
| uint16_t code; |
| uint8_t jt; |
| uint8_t jf; |
| uint32_t k; |
| }; |
| |
| typedef bool (*print_bpf_filter_fn)(const struct bpf_filter_block *); |
| |
| extern void |
| print_bpf_fprog(struct tcb *const tcp, const kernel_ulong_t addr, |
| const unsigned short len, const print_bpf_filter_fn print_k); |
| |
| extern void |
| decode_bpf_fprog(struct tcb *const tcp, const kernel_ulong_t addr, |
| const print_bpf_filter_fn print_k); |
| |
| #endif /* !STRACE_BPF_FILTER_H */ |