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 "tests.h"
30
31#ifdef HAVE_LINUX_NETFILTER_NFNETLINK_CONNTRACK_H
32
33# include <stdio.h>
34# include <sys/socket.h>
35# include "netlink.h"
36# include <linux/netfilter/nfnetlink.h>
37# include <linux/netfilter/nfnetlink_conntrack.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	nlh.nlmsg_type = NFNL_SUBSYS_CTNETLINK_EXP << 8 | IPCTNL_MSG_EXP_NEW;
49	rc = sendto(fd, &nlh, nlh.nlmsg_len, MSG_DONTWAIT, NULL, 0);
50	printf("sendto(%d, {len=%u"
51	       ", type=NFNL_SUBSYS_CTNETLINK_EXP<<8|IPCTNL_MSG_EXP_NEW"
52	       ", flags=NLM_F_REQUEST, seq=0, pid=0}"
53	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
54	       fd, nlh.nlmsg_len, nlh.nlmsg_len, sprintrc(rc));
55
56	nlh.nlmsg_type = NFNL_SUBSYS_CTNETLINK_EXP << 8 | 0xff;
57	rc = sendto(fd, &nlh, nlh.nlmsg_len, MSG_DONTWAIT, NULL, 0);
58	printf("sendto(%d, {len=%u"
59	       ", type=NFNL_SUBSYS_CTNETLINK_EXP<<8|0xff /* IPCTNL_MSG_EXP_??? */"
60	       ", flags=NLM_F_REQUEST, seq=0, pid=0}"
61	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
62	       fd, nlh.nlmsg_len, nlh.nlmsg_len, sprintrc(rc));
63}
64
65static void
66test_nlmsg_flags(const int fd)
67{
68	long rc;
69	struct nlmsghdr nlh = {
70		.nlmsg_len = sizeof(nlh),
71	};
72
73	nlh.nlmsg_type = NFNL_SUBSYS_CTNETLINK_EXP << 8 | IPCTNL_MSG_EXP_NEW;
74	nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_EXCL;
75	rc = sendto(fd, &nlh, nlh.nlmsg_len, MSG_DONTWAIT, NULL, 0);
76	printf("sendto(%d, {len=%u"
77	       ", type=NFNL_SUBSYS_CTNETLINK_EXP<<8|IPCTNL_MSG_EXP_NEW"
78	       ", flags=NLM_F_REQUEST|NLM_F_EXCL, seq=0, pid=0}"
79	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
80	       fd, nlh.nlmsg_len, nlh.nlmsg_len, sprintrc(rc));
81
82	nlh.nlmsg_type = NFNL_SUBSYS_CTNETLINK_EXP << 8 | IPCTNL_MSG_EXP_GET;
83	nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ROOT;
84	rc = sendto(fd, &nlh, nlh.nlmsg_len, MSG_DONTWAIT, NULL, 0);
85	printf("sendto(%d, {len=%u"
86	       ", type=NFNL_SUBSYS_CTNETLINK_EXP<<8|IPCTNL_MSG_EXP_GET"
87	       ", flags=NLM_F_REQUEST|NLM_F_ROOT, seq=0, pid=0}"
88	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
89	       fd, nlh.nlmsg_len, nlh.nlmsg_len, sprintrc(rc));
90
91	nlh.nlmsg_type = NFNL_SUBSYS_CTNETLINK_EXP << 8 | IPCTNL_MSG_EXP_DELETE;
92	nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_NONREC;
93	rc = sendto(fd, &nlh, nlh.nlmsg_len, MSG_DONTWAIT, NULL, 0);
94	printf("sendto(%d, {len=%u"
95	       ", type=NFNL_SUBSYS_CTNETLINK_EXP<<8|IPCTNL_MSG_EXP_DELETE"
96	       ", flags=NLM_F_REQUEST|NLM_F_NONREC, seq=0, pid=0}"
97	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
98	       fd, nlh.nlmsg_len, nlh.nlmsg_len, sprintrc(rc));
99}
100
101int
102main(void)
103{
104	skip_if_unavailable("/proc/self/fd/");
105
106	int fd = create_nl_socket(NETLINK_NETFILTER);
107
108	test_nlmsg_type(fd);
109	test_nlmsg_flags(fd);
110
111	puts("+++ exited with 0 +++");
112
113	return 0;
114}
115
116#else
117
118SKIP_MAIN_UNDEFINED("HAVE_LINUX_NETFILTER_NFNETLINK_CONNTRACK_H")
119
120#endif
121