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_STRUCT_NETCONFMSG
32
33# include <stdio.h>
34# include "test_nlattr.h"
35# include <linux/netconf.h>
36# include <linux/rtnetlink.h>
37
38static void
39init_netconfmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
40{
41	SET_STRUCT(struct nlmsghdr, nlh,
42		.nlmsg_len = msg_len,
43		.nlmsg_type = RTM_GETNETCONF,
44		.nlmsg_flags = NLM_F_DUMP
45	);
46
47	struct netconfmsg *const msg = NLMSG_DATA(nlh);
48	SET_STRUCT(struct netconfmsg, msg,
49		.ncm_family = AF_INET
50	);
51}
52
53static void
54print_netconfmsg(const unsigned int msg_len)
55{
56	printf("{len=%u, type=RTM_GETNETCONF, flags=NLM_F_DUMP"
57	       ", seq=0, pid=0}, {ncm_family=AF_INET}",
58	       msg_len);
59}
60
61int
62main(void)
63{
64	skip_if_unavailable("/proc/self/fd/");
65
66	const int fd = create_nl_socket(NETLINK_ROUTE);
67
68	const unsigned int hdrlen = sizeof(struct netconfmsg);
69	void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
70
71	static char pattern[4096];
72	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
73
74	const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
75	char nla_type_str[256];
76	sprintf(nla_type_str, "%#x /* NETCONFA_??? */", nla_type);
77	TEST_NLATTR_(fd, nlh0, hdrlen,
78		     init_netconfmsg, print_netconfmsg,
79		     nla_type, nla_type_str,
80		     4, pattern, 4,
81		     print_quoted_hex(pattern, 4));
82
83	puts("+++ exited with 0 +++");
84	return 0;
85}
86
87#else
88
89SKIP_MAIN_UNDEFINED("HAVE_STRUCT_NETCONFMSG")
90
91#endif
92