Branch data Line data Source code
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
36 : 14 : 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 [ + + + ]: 14 : switch (nlmsghdr->nlmsg_type) {
42 : : case SELNL_MSG_SETENFORCE: {
43 : : struct selnl_msg_setenforce msg;
44 : :
45 [ + + ]: 6 : if (len < sizeof(msg))
46 : 2 : printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
47 [ + + ]: 4 : else if (!umove_or_printaddr(tcp, addr, &msg)) {
48 : 2 : PRINT_FIELD_D("{", msg, val);
49 : 6 : tprints("}");
50 : : }
51 : : break;
52 : : }
53 : : case SELNL_MSG_POLICYLOAD: {
54 : : struct selnl_msg_policyload msg;
55 : :
56 [ + + ]: 6 : if (len < sizeof(msg))
57 : 2 : printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
58 [ + + ]: 4 : else if (!umove_or_printaddr(tcp, addr, &msg)) {
59 : 2 : PRINT_FIELD_U("{", msg, seqno);
60 : 6 : tprints("}");
61 : : }
62 : : break;
63 : : }
64 : : default:
65 : : return false;
66 : : }
67 : :
68 : : return true;
69 : : }
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