1 /*
2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
3 * Copyright (c) 2017 The strace developers.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "defs.h"
30 #include "netlink.h"
31 #include "print_fields.h"
32
33 #include <linux/selinux_netlink.h>
34
35 bool
decode_netlink_selinux(struct tcb * const tcp,const struct nlmsghdr * const nlmsghdr,const kernel_ulong_t addr,const unsigned int len)36 decode_netlink_selinux(struct tcb *const tcp,
37 const struct nlmsghdr *const nlmsghdr,
38 const kernel_ulong_t addr,
39 const unsigned int len)
40 {
41 switch (nlmsghdr->nlmsg_type) {
42 case SELNL_MSG_SETENFORCE: {
43 struct selnl_msg_setenforce msg;
44
45 if (len < sizeof(msg))
46 printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
47 else if (!umove_or_printaddr(tcp, addr, &msg)) {
48 PRINT_FIELD_D("{", msg, val);
49 tprints("}");
50 }
51 break;
52 }
53 case SELNL_MSG_POLICYLOAD: {
54 struct selnl_msg_policyload msg;
55
56 if (len < sizeof(msg))
57 printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
58 else if (!umove_or_printaddr(tcp, addr, &msg)) {
59 PRINT_FIELD_U("{", msg, seqno);
60 tprints("}");
61 }
62 break;
63 }
64 default:
65 return false;
66 }
67
68 return true;
69 }
70