1 /*
2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
3 * Copyright (c) 2015-2018 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 #include <netinet/in.h>
31
32 #if defined IP_ADD_MEMBERSHIP && defined IPV6_ADD_MEMBERSHIP \
33 && defined IPV6_JOIN_ANYCAST
34
35 # include <limits.h>
36 # include <stdio.h>
37 # include <unistd.h>
38 # include <sys/socket.h>
39 # include <arpa/inet.h>
40 # include <net/if.h>
41
42 #define multi4addr "224.0.0.3"
43 #define multi6addr "ff01::c"
44 #define interface "127.0.0.1"
45
46 int
main(void)47 main(void)
48 {
49 TAIL_ALLOC_OBJECT_CONST_PTR(struct ip_mreq, m4);
50 TAIL_ALLOC_OBJECT_CONST_PTR(struct ipv6_mreq, m6);
51 unsigned int i;
52 int rc;
53
54 inet_pton(AF_INET, multi4addr, &m4->imr_multiaddr);
55 inet_pton(AF_INET, interface, &m4->imr_interface);
56 inet_pton(AF_INET6, multi6addr, &m6->ipv6mr_multiaddr);
57
58 m6->ipv6mr_interface = ifindex_lo();
59 if (!m6->ipv6mr_interface)
60 perror_msg_and_skip("lo");
61
62 (void) close(0);
63 if (socket(AF_INET, SOCK_DGRAM, 0))
64 perror_msg_and_skip("socket");
65
66 struct {
67 const int level;
68 const char *const str_level;
69 const int name;
70 const char *str_name;
71 const void *const val;
72 unsigned int size;
73 const char *const addr;
74 } opts[] = {
75 {
76 ARG_STR(SOL_IP), ARG_STR(IP_ADD_MEMBERSHIP),
77 m4, sizeof(*m4),
78 "{imr_multiaddr=inet_addr(\"" multi4addr
79 "\"), imr_interface=inet_addr(\"" interface "\")}"
80 },
81 {
82 ARG_STR(SOL_IP), ARG_STR(IP_DROP_MEMBERSHIP),
83 m4, sizeof(*m4),
84 "{imr_multiaddr=inet_addr(\"" multi4addr
85 "\"), imr_interface=inet_addr(\"" interface "\")}"
86 },
87 {
88 ARG_STR(SOL_IPV6), ARG_STR(IPV6_ADD_MEMBERSHIP),
89 m6, sizeof(*m6),
90 "{inet_pton(AF_INET6, \"" multi6addr
91 "\", &ipv6mr_multiaddr)"
92 ", ipv6mr_interface=" IFINDEX_LO_STR "}"
93 },
94 {
95 ARG_STR(SOL_IPV6), ARG_STR(IPV6_DROP_MEMBERSHIP),
96 m6, sizeof(*m6),
97 "{inet_pton(AF_INET6, \"" multi6addr
98 "\", &ipv6mr_multiaddr)"
99 ", ipv6mr_interface=" IFINDEX_LO_STR "}"
100 },
101 {
102 ARG_STR(SOL_IPV6), ARG_STR(IPV6_JOIN_ANYCAST),
103 m6, sizeof(*m6),
104 "{inet_pton(AF_INET6, \"" multi6addr
105 "\", &ipv6mr_multiaddr)"
106 ", ipv6mr_interface=" IFINDEX_LO_STR "}"
107 },
108 {
109 ARG_STR(SOL_IPV6), ARG_STR(IPV6_LEAVE_ANYCAST),
110 m6, sizeof(*m6),
111 "{inet_pton(AF_INET6, \"" multi6addr
112 "\", &ipv6mr_multiaddr)"
113 ", ipv6mr_interface=" IFINDEX_LO_STR "}"
114 }
115 };
116
117 for (i = 0; i < ARRAY_SIZE(opts); ++i) {
118 /* optlen < 0, EINVAL */
119 rc = setsockopt(0, opts[i].level, opts[i].name,
120 opts[i].val, -1);
121 printf("setsockopt(0, %s, %s, %p, -1) = %s\n",
122 opts[i].str_level, opts[i].str_name,
123 opts[i].val, sprintrc(rc));
124
125 /* optlen < sizeof(struct), EINVAL */
126 rc = setsockopt(0, opts[i].level, opts[i].name,
127 opts[i].val, opts[i].size - 1);
128 printf("setsockopt(0, %s, %s, %p, %u) = %s\n",
129 opts[i].str_level, opts[i].str_name,
130 opts[i].val, opts[i].size - 1, sprintrc(rc));
131
132 /* optval EFAULT */
133 rc = setsockopt(0, opts[i].level, opts[i].name,
134 opts[i].val + 1, opts[i].size);
135 printf("setsockopt(0, %s, %s, %p, %u) = %s\n",
136 opts[i].str_level, opts[i].str_name,
137 opts[i].val + 1, opts[i].size, sprintrc(rc));
138
139 /* classic */
140 rc = setsockopt(0, opts[i].level, opts[i].name,
141 opts[i].val, opts[i].size);
142 printf("setsockopt(0, %s, %s, %s, %u) = %s\n",
143 opts[i].str_level, opts[i].str_name,
144 opts[i].addr, opts[i].size, sprintrc(rc));
145
146 /* optlen > sizeof(struct), shortened */
147 rc = setsockopt(0, opts[i].level, opts[i].name,
148 opts[i].val, INT_MAX);
149 printf("setsockopt(0, %s, %s, %s, %u) = %s\n",
150 opts[i].str_level, opts[i].str_name,
151 opts[i].addr, INT_MAX, sprintrc(rc));
152 }
153
154 puts("+++ exited with 0 +++");
155 return 0;
156 }
157
158 #else
159
160 SKIP_MAIN_UNDEFINED("IP_ADD_MEMBERSHIP && IPV6_ADD_MEMBERSHIP"
161 " && IPV6_JOIN_ANYCAST")
162
163 #endif
164