Line data    Source code

       1             : /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
       2             : 
       3             : /***
       4             :   This file is part of systemd.
       5             : 
       6             :   Copyright 2014 Lennart Poettering
       7             : 
       8             :   systemd is free software; you can redistribute it and/or modify it
       9             :   under the terms of the GNU Lesser General Public License as published by
      10             :   the Free Software Foundation; either version 2.1 of the License, or
      11             :   (at your option) any later version.
      12             : 
      13             :   systemd is distributed in the hope that it will be useful, but
      14             :   WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
      16             :   Lesser General Public License for more details.
      17             : 
      18             :   You should have received a copy of the GNU Lesser General Public License
      19             :   along with systemd; If not, see <http://www.gnu.org/licenses/>.
      20             : ***/
      21             : 
      22             : #include <seccomp.h>
      23             : 
      24             : #include "util.h"
      25             : #include "seccomp-util.h"
      26             : 
      27           0 : const char* seccomp_arch_to_string(uint32_t c) {
      28             : 
      29           0 :         if (c == SCMP_ARCH_NATIVE)
      30           0 :                 return "native";
      31           0 :         if (c == SCMP_ARCH_X86)
      32           0 :                 return "x86";
      33           0 :         if (c == SCMP_ARCH_X86_64)
      34           0 :                 return "x86-64";
      35           0 :         if (c == SCMP_ARCH_X32)
      36           0 :                 return "x32";
      37           0 :         if (c == SCMP_ARCH_ARM)
      38           0 :                 return "arm";
      39             : 
      40           0 :         return NULL;
      41             : }
      42             : 
      43           0 : int seccomp_arch_from_string(const char *n, uint32_t *ret) {
      44           0 :         if (!n)
      45           0 :                 return -EINVAL;
      46             : 
      47           0 :         assert(ret);
      48             : 
      49           0 :         if (streq(n, "native"))
      50           0 :                 *ret = SCMP_ARCH_NATIVE;
      51           0 :         else if (streq(n, "x86"))
      52           0 :                 *ret = SCMP_ARCH_X86;
      53           0 :         else if (streq(n, "x86-64"))
      54           0 :                 *ret = SCMP_ARCH_X86_64;
      55           0 :         else if (streq(n, "x32"))
      56           0 :                 *ret = SCMP_ARCH_X32;
      57           0 :         else if (streq(n, "arm"))
      58           0 :                 *ret = SCMP_ARCH_ARM;
      59             :         else
      60           0 :                 return -EINVAL;
      61             : 
      62           0 :         return 0;
      63             : }
      64             : 
      65           0 : int seccomp_add_secondary_archs(scmp_filter_ctx *c) {
      66             : 
      67             : #if defined(__i386__) || defined(__x86_64__)
      68             :         int r;
      69             : 
      70             :         /* Add in all possible secondary archs we are aware of that
      71             :          * this kernel might support. */
      72             : 
      73           0 :         r = seccomp_arch_add(c, SCMP_ARCH_X86);
      74           0 :         if (r < 0 && r != -EEXIST)
      75           0 :                 return r;
      76             : 
      77           0 :         r = seccomp_arch_add(c, SCMP_ARCH_X86_64);
      78           0 :         if (r < 0 && r != -EEXIST)
      79           0 :                 return r;
      80             : 
      81           0 :         r = seccomp_arch_add(c, SCMP_ARCH_X32);
      82           0 :         if (r < 0 && r != -EEXIST)
      83           0 :                 return r;
      84             : 
      85             : #endif
      86             : 
      87           0 :         return 0;
      88             : 
      89             : }