1 /*
2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
3 * Copyright (c) 2017-2018 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 "tests.h"
30 #include <stdio.h>
31 #include <string.h>
32 #include <unistd.h>
33 #include <sys/socket.h>
34 #include "test_netlink.h"
35 #include <linux/selinux_netlink.h>
36
37 static void
test_nlmsg_type(const int fd)38 test_nlmsg_type(const int fd)
39 {
40 long rc;
41 struct nlmsghdr nlh = {
42 .nlmsg_len = sizeof(nlh),
43 .nlmsg_type = SELNL_MSG_SETENFORCE,
44 .nlmsg_flags = NLM_F_REQUEST,
45 };
46
47 rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
48 printf("sendto(%d, {len=%u, type=SELNL_MSG_SETENFORCE"
49 ", flags=NLM_F_REQUEST, seq=0, pid=0}"
50 ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
51 fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
52 }
53
54 static void
test_selnl_msg_unspec(const int fd)55 test_selnl_msg_unspec(const int fd)
56 {
57 void *const nlh0 = midtail_alloc(NLMSG_HDRLEN, 4);
58
59 TEST_NETLINK_(fd, nlh0,
60 0xffff, "0xffff /* SELNL_MSG_??? */",
61 NLM_F_REQUEST, "NLM_F_REQUEST",
62 4, "1234", 4,
63 printf("\"\\x31\\x32\\x33\\x34\""));
64 }
65
66 static void
test_selnl_msg_setenforce(const int fd)67 test_selnl_msg_setenforce(const int fd)
68 {
69 static const struct selnl_msg_setenforce msg = {
70 .val = 0xfbdcdfab
71 };
72 void *const nlh0 = midtail_alloc(NLMSG_HDRLEN, sizeof(msg));
73
74 TEST_NETLINK_OBJECT(fd, nlh0,
75 SELNL_MSG_SETENFORCE, NLM_F_REQUEST, msg,
76 PRINT_FIELD_D("{", msg, val);
77 printf("}"));
78 }
79
80 static void
test_selnl_msg_policyload(const int fd)81 test_selnl_msg_policyload(const int fd)
82 {
83 static const struct selnl_msg_policyload msg = {
84 .seqno = 0xabdcfabc
85 };
86 void *const nlh0 = midtail_alloc(NLMSG_HDRLEN, sizeof(msg));
87
88 TEST_NETLINK_OBJECT(fd, nlh0,
89 SELNL_MSG_POLICYLOAD, NLM_F_REQUEST, msg,
90 PRINT_FIELD_U("{", msg, seqno);
91 printf("}"));
92 }
93
main(void)94 int main(void)
95 {
96 skip_if_unavailable("/proc/self/fd/");
97
98 int fd = create_nl_socket(NETLINK_SELINUX);
99
100 test_nlmsg_type(fd);
101 test_selnl_msg_unspec(fd);
102 test_selnl_msg_setenforce(fd);
103 test_selnl_msg_policyload(fd);
104
105 printf("+++ exited with 0 +++\n");
106
107 return 0;
108 }
109