jail/seccomp-syscalls-helpers.h

   1 /*
   2  * Copyright (C) 2015 John Crispin <blogic@openwrt.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU Lesser General Public License version 2.1
   6  * as published by the Free Software Foundation
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13 #ifndef _JAIL_SECCOMP_HELPERS_H_
  14 #define _JAIL_SECCOMP_HELPERS_H_
  15
  16 static int find_syscall(const char *name)
  17 {
  18         int i;
  19
  20         for (i = 0; i < SYSCALL_COUNT; i++) {
  21                 int sc = syscall_index_to_number(i);
  22                 if (syscall_name(sc) && !strcmp(syscall_name(sc), name))
  23                         return sc;
  24         }
  25
  26         return -1;
  27 }
  28
  29 static void set_filter(struct sock_filter *filter, __u16 code, __u8 jt, __u8 jf, __u32 k)
  30 {
  31         filter->code = code;
  32         filter->jt = jt;
  33         filter->jf = jf;
  34         filter->k = k;
  35 }
  36
  37 #endif