1 /*
2 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "defs.h"
29
30 #ifdef HAVE_LINUX_SECCOMP_H
31 # include <linux/seccomp.h>
32 #endif
33 #include "xlat/seccomp_ops.h"
34 #include "xlat/seccomp_filter_flags.h"
35
SYS_FUNC(seccomp)36 SYS_FUNC(seccomp)
37 {
38 unsigned int op = tcp->u_arg[0];
39 unsigned int flags = tcp->u_arg[1];
40 unsigned int act;
41
42 printxval(seccomp_ops, op, "SECCOMP_SET_MODE_???");
43 tprints(", ");
44
45 switch (op) {
46 case SECCOMP_GET_ACTION_AVAIL:
47 tprintf("%u, ", flags);
48 if (!umove_or_printaddr(tcp, tcp->u_arg[2], &act)) {
49 tprints("[");
50 printxval(seccomp_ret_action, act, "SECCOMP_RET_???");
51 tprints("]");
52 }
53 break;
54
55 case SECCOMP_SET_MODE_FILTER:
56 printflags(seccomp_filter_flags, flags,
57 "SECCOMP_FILTER_FLAG_???");
58 tprints(", ");
59 decode_seccomp_fprog(tcp, tcp->u_arg[2]);
60 break;
61
62 case SECCOMP_SET_MODE_STRICT:
63 default:
64 tprintf("%u, ", flags);
65 printaddr(tcp->u_arg[2]);
66 break;
67 }
68
69 return RVAL_DECODED;
70 }
71