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#include <stdio.h>
32#include <string.h>
33#include <stdint.h>
34#include <sys/sysmacros.h>
35#include <netinet/tcp.h>
36#include "test_nlattr.h"
37#include <linux/sock_diag.h>
38#include <linux/unix_diag.h>
39
40static void
41init_unix_diag_msg(struct nlmsghdr *const nlh, const unsigned int msg_len)
42{
43	SET_STRUCT(struct nlmsghdr, nlh,
44		.nlmsg_len = msg_len,
45		.nlmsg_type = SOCK_DIAG_BY_FAMILY,
46		.nlmsg_flags = NLM_F_DUMP
47	);
48
49	struct unix_diag_msg *const msg = NLMSG_DATA(nlh);
50	SET_STRUCT(struct unix_diag_msg, msg,
51		.udiag_family = AF_UNIX,
52		.udiag_type = SOCK_STREAM,
53		.udiag_state = TCP_ESTABLISHED
54	);
55}
56
57static void
58print_unix_diag_msg(const unsigned int msg_len)
59{
60	printf("{len=%u, type=SOCK_DIAG_BY_FAMILY"
61	       ", flags=NLM_F_DUMP, seq=0, pid=0}, {udiag_family=AF_UNIX"
62	       ", udiag_type=SOCK_STREAM, udiag_state=TCP_ESTABLISHED"
63	       ", udiag_ino=0, udiag_cookie=[0, 0]}",
64	       msg_len);
65}
66
67static void
68print_uint(const unsigned int *p)
69{
70	printf("%u", *p);
71}
72
73int
74main(void)
75{
76	skip_if_unavailable("/proc/self/fd/");
77
78	const int fd = create_nl_socket(NETLINK_SOCK_DIAG);
79	const unsigned int hdrlen = sizeof(struct unix_diag_msg);
80	void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
81
82	static char pattern[4096];
83	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
84
85	static const struct unix_diag_vfs uv = {
86		.udiag_vfs_dev = 0xabcddafa,
87		.udiag_vfs_ino = 0xbafabcda
88	};
89	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
90			   init_unix_diag_msg, print_unix_diag_msg,
91			   UNIX_DIAG_VFS, pattern, uv,
92			   printf("{udiag_vfs_dev=makedev(%u, %u)",
93				  major(uv.udiag_vfs_dev),
94				  minor(uv.udiag_vfs_dev));
95			   PRINT_FIELD_U(", ", uv, udiag_vfs_ino);
96			   printf("}"));
97
98	static const struct unix_diag_rqlen rql = {
99		.udiag_rqueue = 0xfabdcdad,
100		.udiag_wqueue = 0xbacdadcf
101	};
102	TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
103			   init_unix_diag_msg, print_unix_diag_msg,
104			   UNIX_DIAG_RQLEN, pattern, rql,
105			   PRINT_FIELD_U("{", rql, udiag_rqueue);
106			   PRINT_FIELD_U(", ", rql, udiag_wqueue);
107			   printf("}"));
108
109	static const uint32_t inode[] = { 0xadbcadbc, 0xfabdcdac };
110	TEST_NLATTR_ARRAY(fd, nlh0, hdrlen,
111			  init_unix_diag_msg, print_unix_diag_msg,
112			  UNIX_DIAG_ICONS, pattern, inode, print_uint);
113
114	puts("+++ exited with 0 +++");
115	return 0;
116}
117