Pau Espin Pedrol | 16b076c | 2020-08-25 13:56:43 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) 2017 by Harald Welte <laforge@gnumonks.org> |
| 3 | * All Rights Reserved |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <unistd.h> |
| 24 | #include <string.h> |
| 25 | #include <fcntl.h> |
| 26 | #include <inttypes.h> |
| 27 | |
| 28 | #include <sys/socket.h> |
| 29 | #include <arpa/inet.h> |
| 30 | #include <netinet/in.h> |
| 31 | |
| 32 | #include <osmocom/core/application.h> |
| 33 | #include <osmocom/core/utils.h> |
| 34 | #include <osmocom/core/socket.h> |
| 35 | #include <osmocom/core/logging.h> |
| 36 | #include <osmocom/core/bits.h> |
| 37 | |
| 38 | #include "../config.h" |
| 39 | |
| 40 | void *ctx = NULL; |
| 41 | |
| 42 | #ifdef HAVE_LIBSCTP |
| 43 | static uint16_t sock_get_local_port(int fd, bool is_v6) { |
| 44 | struct sockaddr_storage sa; |
| 45 | struct sockaddr_in *sin = (struct sockaddr_in *)&sa; |
| 46 | struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa; |
| 47 | socklen_t len = sizeof(sa); |
| 48 | int local_port; |
| 49 | |
| 50 | OSMO_ASSERT(getsockname(fd, (struct sockaddr*)&sa, &len) == 0); |
| 51 | if(!is_v6) |
| 52 | local_port = osmo_load16be(&sin->sin_port); |
| 53 | else |
| 54 | local_port = osmo_load16be(&sin6->sin6_port); |
| 55 | //printf("Checking osmo_sock_init2_multiaddr() port: %" PRIu16 "\n", listen_port_v4); |
| 56 | return local_port; |
| 57 | } |
| 58 | |
| 59 | /* Test API osmo_sock_init2_multiaddr with 1 local/remote address */ |
| 60 | static int test_sockinit2_multiaddr(const char **addrv4_loc, const char **addrv6_loc, |
| 61 | const char **addrv4_rem, const char **addrv6_rem, |
| 62 | size_t addrv4_size, size_t addrv6_size) |
| 63 | { |
| 64 | int fd, rc; |
| 65 | int listen_fd_v4, listen_fd_v6; |
| 66 | int listen_port_v4, listen_port_v6; |
| 67 | |
| 68 | printf("Checking osmo_sock_init2_multiaddr() with bind to a random local SCTP IPv4 port\n"); |
| 69 | |
| 70 | listen_fd_v4 = osmo_sock_init2_multiaddr(AF_INET, SOCK_STREAM, IPPROTO_SCTP, |
| 71 | addrv4_loc, addrv4_size, 0, |
| 72 | NULL, 0, 0, OSMO_SOCK_F_BIND); |
| 73 | OSMO_ASSERT(listen_fd_v4 >= 0); |
| 74 | /* expect it to be blocking */ |
| 75 | rc = fcntl(listen_fd_v4, F_GETFL); |
| 76 | OSMO_ASSERT(!(rc & O_NONBLOCK)); |
| 77 | |
| 78 | listen_port_v4 = sock_get_local_port(listen_fd_v4, false); |
| 79 | |
| 80 | printf("Checking osmo_sock_init2_multiaddr() with bind to a random local SCTP IPv6 port\n"); |
| 81 | |
| 82 | listen_fd_v6 = osmo_sock_init2_multiaddr(AF_INET6, SOCK_STREAM, IPPROTO_SCTP, |
| 83 | addrv6_loc, addrv6_size, 0, |
| 84 | NULL, 0, 0, OSMO_SOCK_F_BIND); |
| 85 | OSMO_ASSERT(listen_fd_v6 >= 0); |
| 86 | /* expect it to be blocking */ |
| 87 | rc = fcntl(listen_fd_v6, F_GETFL); |
| 88 | OSMO_ASSERT(!(rc & O_NONBLOCK)); |
| 89 | |
| 90 | listen_port_v6 = sock_get_local_port(listen_fd_v6, true); |
| 91 | |
| 92 | printf("Checking osmo_sock_init2_multiaddr() for OSMO_SOCK_F_NONBLOCK\n"); |
| 93 | fd = osmo_sock_init2_multiaddr(AF_INET, SOCK_STREAM, IPPROTO_SCTP, |
| 94 | addrv4_loc, addrv4_size, 0, |
| 95 | NULL, 0, 0, OSMO_SOCK_F_BIND|OSMO_SOCK_F_NONBLOCK); |
| 96 | OSMO_ASSERT(fd >= 0); |
| 97 | /* expect it to be blocking */ |
| 98 | rc = fcntl(fd, F_GETFL); |
| 99 | OSMO_ASSERT(rc & O_NONBLOCK); |
| 100 | close(fd); |
| 101 | |
| 102 | printf("Checking osmo_sock_init2_multiaddr() for invalid flags\n"); |
| 103 | fd = osmo_sock_init2_multiaddr(AF_INET, SOCK_STREAM, IPPROTO_SCTP, |
| 104 | addrv4_loc, addrv4_size, 0, |
| 105 | NULL, 0, 0, 0); |
| 106 | OSMO_ASSERT(fd < 0); |
| 107 | |
| 108 | printf("Checking osmo_sock_init2_multiaddr() for combined BIND + CONNECT\n"); |
| 109 | fd = osmo_sock_init2_multiaddr(AF_INET, SOCK_STREAM, IPPROTO_SCTP, |
| 110 | addrv4_rem, addrv4_size, 0, |
| 111 | addrv4_rem, addrv4_size, listen_port_v4, |
| 112 | OSMO_SOCK_F_BIND|OSMO_SOCK_F_CONNECT); |
| 113 | OSMO_ASSERT(fd >= 0); |
| 114 | |
| 115 | printf("Checking osmo_sock_init2_multiaddr(AF_UNSPEC) must fail on mixed IPv4 & IPv6\n"); |
| 116 | fd = osmo_sock_init2_multiaddr(AF_UNSPEC, SOCK_STREAM, IPPROTO_SCTP, |
| 117 | addrv4_rem, addrv4_size, 0, |
| 118 | addrv6_rem, addrv6_size, listen_port_v6, |
| 119 | OSMO_SOCK_F_BIND|OSMO_SOCK_F_CONNECT); |
| 120 | OSMO_ASSERT(fd < 0); |
| 121 | |
| 122 | printf("Checking osmo_sock_init2_multiaddr(AF_UNSPEC) must fail on mixed IPv6 & IPv4\n"); |
| 123 | fd = osmo_sock_init2_multiaddr(AF_UNSPEC, SOCK_STREAM, IPPROTO_SCTP, |
| 124 | addrv6_rem, addrv6_size, 0, |
| 125 | addrv4_rem, addrv4_size, listen_port_v4, |
| 126 | OSMO_SOCK_F_BIND|OSMO_SOCK_F_CONNECT); |
| 127 | OSMO_ASSERT(fd < 0); |
| 128 | |
| 129 | printf("Checking osmo_sock_init2_multiaddr(AF_UNSPEC) BIND + CONNECT on IPv4\n"); |
| 130 | fd = osmo_sock_init2_multiaddr(AF_UNSPEC, SOCK_STREAM, IPPROTO_SCTP, |
| 131 | addrv4_rem, addrv4_size, 0, |
| 132 | addrv4_rem, addrv4_size, listen_port_v4, |
| 133 | OSMO_SOCK_F_BIND|OSMO_SOCK_F_CONNECT); |
| 134 | OSMO_ASSERT(fd >= 0); |
| 135 | |
| 136 | printf("Checking osmo_sock_init2_multiaddr(AF_UNSPEC) BIND + CONNECT on IPv6\n"); |
| 137 | fd = osmo_sock_init2_multiaddr(AF_UNSPEC, SOCK_STREAM, IPPROTO_SCTP, |
| 138 | addrv6_rem, addrv6_size, 0, |
| 139 | addrv6_rem, addrv6_size, listen_port_v6, |
| 140 | OSMO_SOCK_F_BIND|OSMO_SOCK_F_CONNECT); |
| 141 | OSMO_ASSERT(fd >= 0); |
| 142 | |
| 143 | close(listen_fd_v4); |
| 144 | close(listen_fd_v6); |
| 145 | printf("Done\n"); |
| 146 | return 0; |
| 147 | } |
| 148 | |
| 149 | /* Test API osmo_sock_init2_multiaddr with 1 local/remote address */ |
| 150 | static int test_sockinit2_multiaddr_simple(void) |
| 151 | { |
| 152 | const char *addrv4_loc[] = { "0.0.0.0" }; |
| 153 | const char *addrv6_loc[] = { "::" }; |
| 154 | const char *addrv4_rem[] = { "127.0.0.1" }; |
| 155 | const char *addrv6_rem[] = { "::1" }; |
| 156 | |
| 157 | return test_sockinit2_multiaddr(addrv4_loc, addrv6_loc, |
| 158 | addrv4_rem, addrv6_rem, 1, 1); |
| 159 | } |
| 160 | |
| 161 | /* Test API osmo_sock_init2_multiaddr with several local/remote address */ |
| 162 | static int test_sockinit2_multiaddr_several(void) |
| 163 | { |
| 164 | const char *addrv4_localhost[] = { "127.0.0.1", "127.0.0.2" }; |
| 165 | const char *addrv6_localhost[] = { "::1" }; |
| 166 | |
| 167 | return test_sockinit2_multiaddr(addrv4_localhost, addrv6_localhost, |
| 168 | addrv4_localhost, addrv6_localhost, 2, 1); |
| 169 | } |
| 170 | |
| 171 | /* Test API osmo_sock_init2_multiaddr with several local/remote address, using both ipv4+v6 */ |
| 172 | static int test_sockinit2_multiaddr_mixed(void) |
| 173 | { |
| 174 | const char *addr_localhost[] = { "127.0.0.1", "127.0.0.2", "::1" }; |
| 175 | size_t addr_size = ARRAY_SIZE(addr_localhost); |
| 176 | |
| 177 | int listen_fd, listen_port, fd; |
| 178 | |
| 179 | printf("Checking osmo_sock_init2_multiaddr(AF_UNSPEC) BIND on AF_INET IPv4+v6 fails\n"); |
| 180 | listen_fd = osmo_sock_init2_multiaddr(AF_INET, SOCK_STREAM, IPPROTO_SCTP, |
| 181 | addr_localhost, addr_size, 0, |
| 182 | NULL, 0, 0, OSMO_SOCK_F_BIND); |
| 183 | OSMO_ASSERT(listen_fd < 0); |
| 184 | |
| 185 | printf("Checking osmo_sock_init2_multiaddr(AF_UNSPEC) BIND on AF_INET6 IPv4+v6 fails\n"); |
| 186 | listen_fd = osmo_sock_init2_multiaddr(AF_INET6, SOCK_STREAM, IPPROTO_SCTP, |
| 187 | addr_localhost, addr_size, 0, |
| 188 | NULL, 0, 0, OSMO_SOCK_F_BIND); |
| 189 | OSMO_ASSERT(listen_fd < 0); |
| 190 | |
| 191 | printf("Checking osmo_sock_init2_multiaddr(AF_UNSPEC) BIND on AF_UNSPEC IPv4+v6 succeeds\n"); |
| 192 | listen_fd = osmo_sock_init2_multiaddr(AF_UNSPEC, SOCK_STREAM, IPPROTO_SCTP, |
| 193 | addr_localhost, addr_size, 0, |
| 194 | NULL, 0, 0, OSMO_SOCK_F_BIND); |
| 195 | OSMO_ASSERT(listen_fd >= 0); |
| 196 | |
| 197 | listen_port = sock_get_local_port(listen_fd, true); |
| 198 | |
| 199 | printf("Checking osmo_sock_init2_multiaddr(AF_UNSPEC) BIND + CONNECT on IPv4\n"); |
| 200 | fd = osmo_sock_init2_multiaddr(AF_UNSPEC, SOCK_STREAM, IPPROTO_SCTP, |
| 201 | addr_localhost, addr_size, 0, |
| 202 | addr_localhost, addr_size, listen_port, |
| 203 | OSMO_SOCK_F_BIND|OSMO_SOCK_F_CONNECT); |
| 204 | OSMO_ASSERT(fd >= 0); |
| 205 | close(fd); |
| 206 | |
| 207 | close(listen_fd); |
| 208 | return 0; |
| 209 | } |
| 210 | #endif /* ifdef HAVE_LIBSCTP */ |
| 211 | |
| 212 | const struct log_info_cat default_categories[] = { |
| 213 | }; |
| 214 | |
| 215 | static struct log_info info = { |
| 216 | .cat = default_categories, |
| 217 | .num_cat = ARRAY_SIZE(default_categories), |
| 218 | }; |
| 219 | |
| 220 | int main(int argc, char *argv[]) |
| 221 | { |
| 222 | ctx = talloc_named_const(NULL, 0, "socket_test_sctp"); |
| 223 | osmo_init_logging2(ctx, &info); |
| 224 | log_set_use_color(osmo_stderr_target, 0); |
| 225 | log_set_print_filename(osmo_stderr_target, 0); |
| 226 | #ifdef HAVE_LIBSCTP |
| 227 | test_sockinit2_multiaddr_simple(); |
| 228 | test_sockinit2_multiaddr_several(); |
| 229 | test_sockinit2_multiaddr_mixed(); |
| 230 | #endif /* ifdef HAVE_LIBSCTP */ |
| 231 | |
| 232 | return EXIT_SUCCESS; |
| 233 | } |