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 "test_netlink.h"
34#include <linux/selinux_netlink.h>
35
36static void
37test_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
53static void
54test_selnl_msg_unspec(const int fd)
55{
56	void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
57
58	TEST_NETLINK_(fd, nlh0,
59		      0xffff, "0xffff /* SELNL_MSG_??? */",
60		      NLM_F_REQUEST, "NLM_F_REQUEST",
61		      4, "1234", 4,
62		      printf("\"\\x31\\x32\\x33\\x34\""));
63}
64
65static void
66test_selnl_msg_setenforce(const int fd)
67{
68	void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
69
70	static const struct selnl_msg_setenforce msg = {
71		.val = 0xfbdcdfab
72	};
73	TEST_NETLINK_OBJECT(fd, nlh0,
74			    SELNL_MSG_SETENFORCE, NLM_F_REQUEST, msg,
75			    PRINT_FIELD_D("{", msg, val);
76			    printf("}"));
77}
78
79static void
80test_selnl_msg_policyload(const int fd)
81{
82	void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
83
84	static const struct selnl_msg_policyload msg = {
85		.seqno = 0xabdcfabc
86	};
87	TEST_NETLINK_OBJECT(fd, nlh0,
88			    SELNL_MSG_POLICYLOAD, NLM_F_REQUEST, msg,
89			    PRINT_FIELD_U("{", msg, seqno);
90			    printf("}"));
91}
92
93int main(void)
94{
95	skip_if_unavailable("/proc/self/fd/");
96
97	int fd = create_nl_socket(NETLINK_SELINUX);
98
99	test_nlmsg_type(fd);
100	test_selnl_msg_unspec(fd);
101	test_selnl_msg_setenforce(fd);
102	test_selnl_msg_policyload(fd);
103
104	printf("+++ exited with 0 +++\n");
105
106	return 0;
107}
108