1 /* 2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv (at) 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 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
