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1 /*
2  * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
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 "tests.h"
29 #include <stdio.h>
30 #include <string.h>
31 #include <unistd.h>
32 #include <sys/socket.h>
33 #include "netlink.h"
34 #include <linux/selinux_netlink.h>
35 
36 static void
test_nlmsg_type(const int fd)37 test_nlmsg_type(const int fd)
38 {
39 	long rc;
40 	struct nlmsghdr nlh = {
41 		.nlmsg_len = sizeof(nlh),
42 		.nlmsg_type = SELNL_MSG_SETENFORCE,
43 		.nlmsg_flags = NLM_F_REQUEST,
44 	};
45 
46 	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
47 	printf("sendto(%d, {len=%u, type=SELNL_MSG_SETENFORCE"
48 	       ", flags=NLM_F_REQUEST, seq=0, pid=0}"
49 	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
50 	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
51 }
52 
main(void)53 int main(void)
54 {
55 	skip_if_unavailable("/proc/self/fd/");
56 
57 	int fd = create_nl_socket(NETLINK_SELINUX);
58 
59 	test_nlmsg_type(fd);
60 
61 	printf("+++ exited with 0 +++\n");
62 
63 	return 0;
64 }
65