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
30#ifdef HAVE_LINUX_NETFILTER_NFNETLINK_H
31
32# include <stdio.h>
33# include <string.h>
34# include <unistd.h>
35# include <sys/socket.h>
36# include "netlink.h"
37# include <linux/netfilter/nfnetlink.h>
38
39static void
40test_nlmsg_type(const int fd)
41{
42	long rc;
43	struct nlmsghdr nlh = {
44		.nlmsg_len = sizeof(nlh),
45		.nlmsg_flags = NLM_F_REQUEST,
46	};
47
48# ifdef NFNL_MSG_BATCH_BEGIN
49	nlh.nlmsg_type = NFNL_MSG_BATCH_BEGIN;
50	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
51	printf("sendto(%d, {len=%u, type=NFNL_MSG_BATCH_BEGIN"
52	       ", flags=NLM_F_REQUEST, seq=0, pid=0}"
53	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
54	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
55# endif
56
57	nlh.nlmsg_type = NFNL_SUBSYS_CTNETLINK << 8 | 0xff;
58	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
59	printf("sendto(%d, {len=%u"
60	       ", type=NFNL_SUBSYS_CTNETLINK<<8|0xff /* IPCTNL_MSG_CT_??? */"
61	       ", flags=NLM_F_REQUEST, seq=0, pid=0}"
62	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
63	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
64
65	nlh.nlmsg_type = 0xffff;
66	rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
67	printf("sendto(%d, {len=%u, type=0xff /* NFNL_SUBSYS_??? */<<8|0xff"
68	       ", flags=NLM_F_REQUEST, seq=0, pid=0}"
69	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
70	       fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
71}
72
73int main(void)
74{
75	skip_if_unavailable("/proc/self/fd/");
76
77	int fd = create_nl_socket(NETLINK_NETFILTER);
78
79	test_nlmsg_type(fd);
80
81	printf("+++ exited with 0 +++\n");
82
83	return 0;
84}
85
86#else
87
88SKIP_MAIN_UNDEFINED("HAVE_LINUX_NETFILTER_NFNETLINK_H")
89
90#endif
91