1/*-
2 * Copyright (c) 2008 Robert N. M. Watson
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * This regression test creates a raw IPv6 socket and confirms that it can
29 * set and get filters on the socket.  No attempt is made to validate that
30 * the filter is implemented, just that it can be properly retrieved, set,
31 * etc.
32 */
33
34#include <sys/types.h>
35#include <sys/socket.h>
36
37#include <netinet/in.h>
38#include <netinet/icmp6.h>
39
40#include <err.h>
41#include <string.h>
42#include <unistd.h>
43
44/*
45 * Reference filters to set/test.
46 */
47static struct icmp6_filter ic6f_passall;
48static struct icmp6_filter ic6f_blockall;
49
50int
51main(int argc, char *argv[])
52{
53	struct icmp6_filter ic6f;
54	socklen_t len;
55	int s;
56
57	ICMP6_FILTER_SETPASSALL(&ic6f_passall);
58	ICMP6_FILTER_SETBLOCKALL(&ic6f_blockall);
59
60	s = socket(PF_INET6, SOCK_RAW, 0);
61	if (s < 0)
62		err(-1, "socket(PF_INET6, SOCK_RAW, 0)");
63
64	/*
65	 * Confirm that we can read before the first set, and that the
66	 * default is to pass all ICMP.
67	 */
68	len = sizeof(ic6f);
69	if (getsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &ic6f, &len) < 0)
70		err(-1, "1: getsockopt(ICMP6_FILTER)");
71	if (memcmp(&ic6f, &ic6f_passall, sizeof(ic6f)) != 0)
72		errx(-1, "1: getsockopt(ICMP6_FILTER) - default not passall");
73
74	/*
75	 * Confirm that we can write a pass all filter to the socket.
76	 */
77	len = sizeof(ic6f);
78	ICMP6_FILTER_SETPASSALL(&ic6f);
79	if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &ic6f, len) < 0)
80		err(-1, "2: setsockopt(ICMP6_FILTER, PASSALL)");
81
82	/*
83	 * Confirm that we can still read a pass all filter.
84	 */
85	len = sizeof(ic6f);
86	if (getsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &ic6f, &len) < 0)
87		err(-1, "3: getsockopt(ICMP6_FILTER)");
88	if (memcmp(&ic6f, &ic6f_passall, sizeof(ic6f)) != 0)
89		errx(-1, "3: getsockopt(ICMP6_FILTER) - not passall");
90
91	/*
92	 * Confirm that we can write a block all filter to the socket.
93	 */
94	len = sizeof(ic6f);
95	ICMP6_FILTER_SETBLOCKALL(&ic6f);
96	if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &ic6f, len) < 0)
97		err(-1, "4: setsockopt(ICMP6_FILTER, BLOCKALL)");
98
99	/*
100	 * Confirm that we can read back a block all filter.
101	 */
102	len = sizeof(ic6f);
103	if (getsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &ic6f, &len) < 0)
104		err(-1, "5: getsockopt(ICMP6_FILTER)");
105	if (memcmp(&ic6f, &ic6f_blockall, sizeof(ic6f)) != 0)
106		errx(-1, "5: getsockopt(ICMP6_FILTER) - not blockall");
107
108	/*
109	 * For completeness, confirm that we can reset to the default.
110	 */
111	len = sizeof(ic6f);
112	ICMP6_FILTER_SETPASSALL(&ic6f);
113	if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &ic6f, len) < 0)
114		err(-1, "6: setsockopt(ICMP6_FILTER, PASSALL)");
115
116	/*
117	 * ... And that we can read back the pass all rule again.
118	 */
119	len = sizeof(ic6f);
120	if (getsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &ic6f, &len) < 0)
121		err(-1, "7: getsockopt(ICMP6_FILTER)");
122	if (memcmp(&ic6f, &ic6f_passall, sizeof(ic6f)) != 0)
123		errx(-1, "7: getsockopt(ICMP6_FILTER) - not passall");
124
125	close(s);
126	return (0);
127}
128