granicus.if.org Git - strace/blob - seccomp.c

   1 /*
   2  * Copyright (c) 2015-2018 Dmitry V. Levin <ldv@altlinux.org>
   3  * All rights reserved.
   4  *
   5  * SPDX-License-Identifier: LGPL-2.1-or-later
   6  */
   7
   8 #include "defs.h"
   9
  10 #ifdef HAVE_LINUX_SECCOMP_H
  11 # include <linux/seccomp.h>
  12 #endif
  13 #include "xlat/seccomp_ops.h"
  14 #include "xlat/seccomp_filter_flags.h"
  15
  16 SYS_FUNC(seccomp)
  17 {
  18         unsigned int op = tcp->u_arg[0];
  19         unsigned int flags = tcp->u_arg[1];
  20         unsigned int act;
  21
  22         printxval(seccomp_ops, op, "SECCOMP_SET_MODE_???");
  23         tprints(", ");
  24
  25         switch (op) {
  26         case SECCOMP_GET_ACTION_AVAIL:
  27                 tprintf("%u, ", flags);
  28                 if (!umove_or_printaddr(tcp, tcp->u_arg[2], &act)) {
  29                         tprints("[");
  30                         printxval(seccomp_ret_action, act, "SECCOMP_RET_???");
  31                         tprints("]");
  32                 }
  33                 break;
  34
  35         case SECCOMP_SET_MODE_FILTER:
  36                 printflags(seccomp_filter_flags, flags,
  37                            "SECCOMP_FILTER_FLAG_???");
  38                 tprints(", ");
  39                 decode_seccomp_fprog(tcp, tcp->u_arg[2]);
  40                 break;
  41
  42         case SECCOMP_SET_MODE_STRICT:
  43         default:
  44                 tprintf("%u, ", flags);
  45                 printaddr(tcp->u_arg[2]);
  46                 break;
  47         }
  48
  49         return RVAL_DECODED;
  50 }