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[strace] / tests / ip_mreq.c
1 /*
2  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27
28 #include "tests.h"
29 #include <netinet/in.h>
30
31 #if defined IP_ADD_MEMBERSHIP && defined IPV6_ADD_MEMBERSHIP \
32  && defined IPV6_JOIN_ANYCAST && defined HAVE_IF_INDEXTONAME
33
34 # include <stdio.h>
35 # include <unistd.h>
36 # include <sys/socket.h>
37 # include <arpa/inet.h>
38 # include <net/if.h>
39
40 int
41 main(void)
42 {
43         static const char multi4addr[] = "224.0.0.3";
44         static const char multi6addr[] = "ff01::c";
45         static const char interface[] = "127.0.0.1";
46
47         TAIL_ALLOC_OBJECT_CONST_PTR(struct ip_mreq, m4);
48         TAIL_ALLOC_OBJECT_CONST_PTR(struct ipv6_mreq, m6);
49         unsigned int i;
50         int rc;
51
52         inet_pton(AF_INET, multi4addr, &m4->imr_multiaddr);
53         inet_pton(AF_INET, interface, &m4->imr_interface);
54         inet_pton(AF_INET6, multi6addr, &m6->ipv6mr_multiaddr);
55
56         m6->ipv6mr_interface = if_nametoindex("lo");
57         if (!m6->ipv6mr_interface)
58                 perror_msg_and_skip("lo");
59
60         (void) close(0);
61         if (socket(AF_INET, SOCK_DGRAM, 0))
62                 perror_msg_and_skip("socket");
63
64         struct {
65                 int level;
66                 const char *str_level;
67                 int optname;
68                 const char *str_optname;
69                 void *optval;
70                 unsigned int optsize;
71         } short_any[] = {
72                 {
73                         ARG_STR(SOL_IP), ARG_STR(IP_ADD_MEMBERSHIP),
74                         m4, sizeof(*m4)
75                 },
76                 {
77                         ARG_STR(SOL_IP), ARG_STR(IP_DROP_MEMBERSHIP),
78                         m4, sizeof(*m4)
79                 },
80                 {
81                         ARG_STR(SOL_IPV6), ARG_STR(IPV6_ADD_MEMBERSHIP),
82                         m6, sizeof(*m6)
83                 },
84                 {
85                         ARG_STR(SOL_IPV6), ARG_STR(IPV6_DROP_MEMBERSHIP),
86                         m6, sizeof(*m6)
87                 },
88                 {
89                         ARG_STR(SOL_IPV6), ARG_STR(IPV6_JOIN_ANYCAST),
90                         m6, sizeof(*m6)
91                 },
92                 {
93                         ARG_STR(SOL_IPV6), ARG_STR(IPV6_LEAVE_ANYCAST),
94                         m6, sizeof(*m6)
95                 }
96         };
97
98         for (i = 0; i < ARRAY_SIZE(short_any); ++i) {
99                 rc = setsockopt(0, short_any[i].level, short_any[i].optname,
100                                 short_any[i].optval, 1);
101                 printf("setsockopt(0, %s, %s, \"\\%hho\", 1) = %s\n",
102                        short_any[i].str_level, short_any[i].str_optname,
103                        * (unsigned char *) short_any[i].optval,
104                        sprintrc(rc));
105
106                 rc = setsockopt(0, short_any[i].level, short_any[i].optname,
107                                 short_any[i].optval + 1, short_any[i].optsize);
108                 printf("setsockopt(0, %s, %s, %p, %u) = %s\n",
109                        short_any[i].str_level, short_any[i].str_optname,
110                        short_any[i].optval + 1, short_any[i].optsize,
111                        sprintrc(rc));
112         }
113
114         struct {
115                 int optname;
116                 const char *str_optname;
117         } long_ip[] = {
118                 { ARG_STR(IP_ADD_MEMBERSHIP) },
119                 { ARG_STR(IP_DROP_MEMBERSHIP) }
120         }, long_ipv6[] = {
121                 { ARG_STR(IPV6_ADD_MEMBERSHIP) },
122                 { ARG_STR(IPV6_DROP_MEMBERSHIP) },
123                 { ARG_STR(IPV6_JOIN_ANYCAST) },
124                 { ARG_STR(IPV6_LEAVE_ANYCAST) }
125         };
126
127         for (i = 0; i < ARRAY_SIZE(long_ip); ++i) {
128                 rc = setsockopt(0, SOL_IP, long_ip[i].optname,
129                                 m4, sizeof(*m4));
130                 printf("setsockopt(0, SOL_IP, %s"
131                        ", {imr_multiaddr=inet_addr(\"%s\")"
132                        ", imr_interface=inet_addr(\"%s\")}, %u) = %s\n",
133                        long_ip[i].str_optname, multi4addr,
134                        interface, (unsigned) sizeof(*m4), sprintrc(rc));
135         }
136
137         for (i = 0; i < ARRAY_SIZE(long_ipv6); ++i) {
138                 rc = setsockopt(0, SOL_IPV6, long_ipv6[i].optname,
139                                 m6, sizeof(*m6));
140                 printf("setsockopt(0, SOL_IPV6, %s"
141                        ", {ipv6mr_multiaddr=inet_pton(\"%s\")"
142                        ", ipv6mr_interface=if_nametoindex(\"lo\")}"
143                        ", %u) = %s\n",
144                        long_ipv6[i].str_optname, multi6addr,
145                        (unsigned) sizeof(*m6), sprintrc(rc));
146         }
147
148         puts("+++ exited with 0 +++");
149         return 0;
150 }
151
152 #else
153
154 SKIP_MAIN_UNDEFINED("IP_ADD_MEMBERSHIP && IPV6_ADD_MEMBERSHIP"
155                     " && IPV6_JOIN_ANYCAST && HAVE_IF_INDEXTONAME")
156
157 #endif