Benny Prijono | 8ab968f | 2007-07-20 08:08:30 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
Benny Prijono | 844653c | 2008-12-23 17:27:53 +0000 | [diff] [blame] | 3 | * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
Benny Prijono | 8ab968f | 2007-07-20 08:08:30 +0000 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pj/sock.h> |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 21 | #include <pj/assert.h> |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 22 | #include <pj/ctype.h> |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 23 | #include <pj/errno.h> |
| 24 | #include <pj/ip_helper.h> |
| 25 | #include <pj/os.h> |
| 26 | #include <pj/addr_resolv.h> |
| 27 | #include <pj/string.h> |
| 28 | #include <pj/compat/socket.h> |
| 29 | |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 30 | #if 0 |
| 31 | /* Enable some tracing */ |
| 32 | #include <pj/log.h> |
| 33 | #define THIS_FILE "sock_common.c" |
| 34 | #define TRACE_(arg) PJ_LOG(4,arg) |
| 35 | #else |
| 36 | #define TRACE_(arg) |
| 37 | #endif |
| 38 | |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 39 | |
| 40 | /* |
| 41 | * Convert address string with numbers and dots to binary IP address. |
| 42 | */ |
| 43 | PJ_DEF(pj_in_addr) pj_inet_addr(const pj_str_t *cp) |
| 44 | { |
| 45 | pj_in_addr addr; |
| 46 | |
| 47 | pj_inet_aton(cp, &addr); |
| 48 | return addr; |
| 49 | } |
| 50 | |
| 51 | /* |
| 52 | * Convert address string with numbers and dots to binary IP address. |
| 53 | */ |
| 54 | PJ_DEF(pj_in_addr) pj_inet_addr2(const char *cp) |
| 55 | { |
| 56 | pj_str_t str = pj_str((char*)cp); |
| 57 | return pj_inet_addr(&str); |
| 58 | } |
| 59 | |
| 60 | /* |
Benny Prijono | 80025db | 2007-12-02 15:36:46 +0000 | [diff] [blame] | 61 | * Get text representation. |
| 62 | */ |
| 63 | PJ_DEF(char*) pj_inet_ntop2( int af, const void *src, |
| 64 | char *dst, int size) |
| 65 | { |
| 66 | pj_status_t status; |
| 67 | |
| 68 | status = pj_inet_ntop(af, src, dst, size); |
| 69 | return (status==PJ_SUCCESS)? dst : NULL; |
| 70 | } |
| 71 | |
| 72 | /* |
Benny Prijono | 40c2633 | 2007-12-03 14:33:39 +0000 | [diff] [blame] | 73 | * Print socket address. |
| 74 | */ |
| 75 | PJ_DEF(char*) pj_sockaddr_print( const pj_sockaddr_t *addr, |
| 76 | char *buf, int size, |
| 77 | unsigned flags) |
| 78 | { |
| 79 | enum { |
| 80 | WITH_PORT = 1, |
| 81 | WITH_BRACKETS = 2 |
| 82 | }; |
| 83 | |
| 84 | char txt[PJ_INET6_ADDRSTRLEN]; |
| 85 | char port[32]; |
| 86 | const pj_addr_hdr *h = (const pj_addr_hdr*)addr; |
| 87 | char *bquote, *equote; |
| 88 | pj_status_t status; |
| 89 | |
| 90 | status = pj_inet_ntop(h->sa_family, pj_sockaddr_get_addr(addr), |
| 91 | txt, sizeof(txt)); |
| 92 | if (status != PJ_SUCCESS) |
| 93 | return ""; |
| 94 | |
| 95 | if (h->sa_family != PJ_AF_INET6 || (flags & WITH_BRACKETS)==0) { |
| 96 | bquote = ""; equote = ""; |
| 97 | } else { |
| 98 | bquote = "["; equote = "]"; |
| 99 | } |
| 100 | |
| 101 | if (flags & WITH_PORT) { |
| 102 | pj_ansi_snprintf(port, sizeof(port), ":%d", |
| 103 | pj_sockaddr_get_port(addr)); |
| 104 | } else { |
| 105 | port[0] = '\0'; |
| 106 | } |
| 107 | |
| 108 | pj_ansi_snprintf(buf, size, "%s%s%s%s", |
| 109 | bquote, txt, equote, port); |
| 110 | |
| 111 | return buf; |
| 112 | } |
| 113 | |
| 114 | /* |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 115 | * Set the IP address of an IP socket address from string address, |
| 116 | * with resolving the host if necessary. The string address may be in a |
| 117 | * standard numbers and dots notation or may be a hostname. If hostname |
| 118 | * is specified, then the function will resolve the host into the IP |
| 119 | * address. |
| 120 | */ |
| 121 | PJ_DEF(pj_status_t) pj_sockaddr_in_set_str_addr( pj_sockaddr_in *addr, |
| 122 | const pj_str_t *str_addr) |
| 123 | { |
| 124 | PJ_CHECK_STACK(); |
| 125 | |
| 126 | PJ_ASSERT_RETURN(!str_addr || str_addr->slen < PJ_MAX_HOSTNAME, |
| 127 | (addr->sin_addr.s_addr=PJ_INADDR_NONE, PJ_EINVAL)); |
| 128 | |
| 129 | PJ_SOCKADDR_RESET_LEN(addr); |
| 130 | addr->sin_family = AF_INET; |
| 131 | pj_bzero(addr->sin_zero, sizeof(addr->sin_zero)); |
| 132 | |
| 133 | if (str_addr && str_addr->slen) { |
| 134 | addr->sin_addr = pj_inet_addr(str_addr); |
| 135 | if (addr->sin_addr.s_addr == PJ_INADDR_NONE) { |
| 136 | pj_hostent he; |
| 137 | pj_status_t rc; |
| 138 | |
| 139 | rc = pj_gethostbyname(str_addr, &he); |
| 140 | if (rc == 0) { |
| 141 | addr->sin_addr.s_addr = *(pj_uint32_t*)he.h_addr; |
| 142 | } else { |
| 143 | addr->sin_addr.s_addr = PJ_INADDR_NONE; |
| 144 | return rc; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | } else { |
| 149 | addr->sin_addr.s_addr = 0; |
| 150 | } |
| 151 | |
| 152 | return PJ_SUCCESS; |
| 153 | } |
| 154 | |
| 155 | /* Set address from a name */ |
| 156 | PJ_DEF(pj_status_t) pj_sockaddr_set_str_addr(int af, |
| 157 | pj_sockaddr *addr, |
| 158 | const pj_str_t *str_addr) |
| 159 | { |
| 160 | pj_status_t status; |
| 161 | |
| 162 | if (af == PJ_AF_INET) { |
| 163 | return pj_sockaddr_in_set_str_addr(&addr->ipv4, str_addr); |
| 164 | } |
| 165 | |
| 166 | PJ_ASSERT_RETURN(af==PJ_AF_INET6, PJ_EAFNOTSUP); |
| 167 | |
| 168 | /* IPv6 specific */ |
| 169 | |
| 170 | addr->ipv6.sin6_family = PJ_AF_INET6; |
| 171 | PJ_SOCKADDR_RESET_LEN(addr); |
| 172 | |
| 173 | if (str_addr && str_addr->slen) { |
| 174 | status = pj_inet_pton(PJ_AF_INET6, str_addr, &addr->ipv6.sin6_addr); |
| 175 | if (status != PJ_SUCCESS) { |
| 176 | pj_addrinfo ai; |
| 177 | unsigned count = 1; |
| 178 | |
| 179 | status = pj_getaddrinfo(PJ_AF_INET6, str_addr, &count, &ai); |
| 180 | if (status==PJ_SUCCESS) { |
| 181 | pj_memcpy(&addr->ipv6.sin6_addr, &ai.ai_addr.ipv6.sin6_addr, |
| 182 | sizeof(pj_sockaddr_in6)); |
| 183 | } |
| 184 | } |
| 185 | } else { |
| 186 | status = PJ_SUCCESS; |
| 187 | } |
| 188 | |
| 189 | return status; |
| 190 | } |
| 191 | |
| 192 | /* |
| 193 | * Set the IP address and port of an IP socket address. |
| 194 | * The string address may be in a standard numbers and dots notation or |
| 195 | * may be a hostname. If hostname is specified, then the function will |
| 196 | * resolve the host into the IP address. |
| 197 | */ |
| 198 | PJ_DEF(pj_status_t) pj_sockaddr_in_init( pj_sockaddr_in *addr, |
| 199 | const pj_str_t *str_addr, |
| 200 | pj_uint16_t port) |
| 201 | { |
| 202 | PJ_ASSERT_RETURN(addr, (addr->sin_addr.s_addr=PJ_INADDR_NONE, PJ_EINVAL)); |
| 203 | |
| 204 | PJ_SOCKADDR_RESET_LEN(addr); |
| 205 | addr->sin_family = PJ_AF_INET; |
| 206 | pj_bzero(addr->sin_zero, sizeof(addr->sin_zero)); |
| 207 | pj_sockaddr_in_set_port(addr, port); |
| 208 | return pj_sockaddr_in_set_str_addr(addr, str_addr); |
| 209 | } |
| 210 | |
| 211 | /* |
| 212 | * Initialize IP socket address based on the address and port info. |
| 213 | */ |
| 214 | PJ_DEF(pj_status_t) pj_sockaddr_init(int af, |
| 215 | pj_sockaddr *addr, |
| 216 | const pj_str_t *cp, |
| 217 | pj_uint16_t port) |
| 218 | { |
| 219 | pj_status_t status; |
| 220 | |
| 221 | if (af == PJ_AF_INET) { |
| 222 | return pj_sockaddr_in_init(&addr->ipv4, cp, port); |
| 223 | } |
| 224 | |
| 225 | /* IPv6 specific */ |
| 226 | PJ_ASSERT_RETURN(af==PJ_AF_INET6, PJ_EAFNOTSUP); |
| 227 | |
| 228 | pj_bzero(addr, sizeof(pj_sockaddr_in6)); |
| 229 | addr->addr.sa_family = PJ_AF_INET6; |
| 230 | |
| 231 | status = pj_sockaddr_set_str_addr(af, addr, cp); |
| 232 | if (status != PJ_SUCCESS) |
| 233 | return status; |
| 234 | |
| 235 | addr->ipv6.sin6_port = pj_htons(port); |
| 236 | return PJ_SUCCESS; |
| 237 | } |
| 238 | |
| 239 | /* |
Benny Prijono | 40c2633 | 2007-12-03 14:33:39 +0000 | [diff] [blame] | 240 | * Compare two socket addresses. |
| 241 | */ |
| 242 | PJ_DEF(int) pj_sockaddr_cmp( const pj_sockaddr_t *addr1, |
| 243 | const pj_sockaddr_t *addr2) |
| 244 | { |
| 245 | const pj_sockaddr *a1 = (const pj_sockaddr*) addr1; |
| 246 | const pj_sockaddr *a2 = (const pj_sockaddr*) addr2; |
| 247 | int port1, port2; |
| 248 | int result; |
| 249 | |
| 250 | /* Compare address family */ |
| 251 | if (a1->addr.sa_family < a2->addr.sa_family) |
| 252 | return -1; |
| 253 | else if (a1->addr.sa_family > a2->addr.sa_family) |
| 254 | return 1; |
| 255 | |
| 256 | /* Compare addresses */ |
| 257 | result = pj_memcmp(pj_sockaddr_get_addr(a1), |
| 258 | pj_sockaddr_get_addr(a2), |
| 259 | pj_sockaddr_get_addr_len(a1)); |
| 260 | if (result != 0) |
| 261 | return result; |
| 262 | |
| 263 | /* Compare port number */ |
| 264 | port1 = pj_sockaddr_get_port(a1); |
| 265 | port2 = pj_sockaddr_get_port(a2); |
| 266 | |
| 267 | if (port1 < port2) |
| 268 | return -1; |
| 269 | else if (port1 > port2) |
| 270 | return 1; |
| 271 | |
| 272 | /* TODO: |
| 273 | * Do we need to compare flow label and scope id in IPv6? |
| 274 | */ |
| 275 | |
| 276 | /* Looks equal */ |
| 277 | return 0; |
| 278 | } |
| 279 | |
| 280 | /* |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 281 | * Get first IP address associated with the hostname. |
| 282 | */ |
| 283 | PJ_DEF(pj_in_addr) pj_gethostaddr(void) |
| 284 | { |
| 285 | pj_sockaddr_in addr; |
| 286 | const pj_str_t *hostname = pj_gethostname(); |
| 287 | |
| 288 | pj_sockaddr_in_set_str_addr(&addr, hostname); |
| 289 | return addr.sin_addr; |
| 290 | } |
| 291 | |
| 292 | /* |
| 293 | * Get port number of a pj_sockaddr_in |
| 294 | */ |
| 295 | PJ_DEF(pj_uint16_t) pj_sockaddr_in_get_port(const pj_sockaddr_in *addr) |
| 296 | { |
| 297 | return pj_ntohs(addr->sin_port); |
| 298 | } |
| 299 | |
| 300 | /* |
| 301 | * Get the address part |
| 302 | */ |
| 303 | PJ_DEF(void*) pj_sockaddr_get_addr(const pj_sockaddr_t *addr) |
| 304 | { |
| 305 | const pj_sockaddr *a = (const pj_sockaddr*)addr; |
| 306 | |
| 307 | PJ_ASSERT_RETURN(a->addr.sa_family == PJ_AF_INET || |
| 308 | a->addr.sa_family == PJ_AF_INET6, NULL); |
| 309 | |
| 310 | if (a->addr.sa_family == PJ_AF_INET6) |
| 311 | return (void*) &a->ipv6.sin6_addr; |
| 312 | else |
| 313 | return (void*) &a->ipv4.sin_addr; |
| 314 | } |
| 315 | |
| 316 | /* |
| 317 | * Check if sockaddr contains a non-zero address |
| 318 | */ |
| 319 | PJ_DEF(pj_bool_t) pj_sockaddr_has_addr(const pj_sockaddr_t *addr) |
| 320 | { |
| 321 | const pj_sockaddr *a = (const pj_sockaddr*)addr; |
| 322 | |
Benny Prijono | bb7b98e | 2007-12-12 17:13:34 +0000 | [diff] [blame] | 323 | /* It's probably not wise to raise assertion here if |
| 324 | * the address doesn't contain a valid address family, and |
| 325 | * just return PJ_FALSE instead. |
| 326 | * |
| 327 | * The reason is because application may need to distinguish |
| 328 | * these three conditions with sockaddr: |
| 329 | * a) sockaddr is not initialized. This is by convention |
| 330 | * indicated by sa_family==0. |
| 331 | * b) sockaddr is initialized with zero address. This is |
| 332 | * indicated with the address field having zero address. |
| 333 | * c) sockaddr is initialized with valid address/port. |
| 334 | * |
| 335 | * If we enable this assertion, then application will loose |
| 336 | * the capability to specify condition a), since it will be |
| 337 | * forced to always initialize sockaddr (even with zero address). |
| 338 | * This may break some parts of upper layer libraries. |
| 339 | */ |
| 340 | //PJ_ASSERT_RETURN(a->addr.sa_family == PJ_AF_INET || |
Benny Prijono | f4385cd | 2009-12-29 16:53:33 +0000 | [diff] [blame] | 341 | // a->addr.sa_family == PJ_AF_INET6, PJ_FALSE); |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 342 | |
Benny Prijono | bb7b98e | 2007-12-12 17:13:34 +0000 | [diff] [blame] | 343 | if (a->addr.sa_family!=PJ_AF_INET && a->addr.sa_family!=PJ_AF_INET6) { |
| 344 | return PJ_FALSE; |
| 345 | } else if (a->addr.sa_family == PJ_AF_INET6) { |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 346 | pj_uint8_t zero[24]; |
| 347 | pj_bzero(zero, sizeof(zero)); |
| 348 | return pj_memcmp(a->ipv6.sin6_addr.s6_addr, zero, |
| 349 | sizeof(pj_in6_addr)) != 0; |
| 350 | } else |
| 351 | return a->ipv4.sin_addr.s_addr != PJ_INADDR_ANY; |
| 352 | } |
| 353 | |
| 354 | /* |
| 355 | * Get port number |
| 356 | */ |
| 357 | PJ_DEF(pj_uint16_t) pj_sockaddr_get_port(const pj_sockaddr_t *addr) |
| 358 | { |
| 359 | const pj_sockaddr *a = (const pj_sockaddr*) addr; |
| 360 | |
| 361 | PJ_ASSERT_RETURN(a->addr.sa_family == PJ_AF_INET || |
| 362 | a->addr.sa_family == PJ_AF_INET6, (pj_uint16_t)0xFFFF); |
| 363 | |
| 364 | return pj_ntohs((pj_uint16_t)(a->addr.sa_family == PJ_AF_INET6 ? |
| 365 | a->ipv6.sin6_port : a->ipv4.sin_port)); |
| 366 | } |
| 367 | |
| 368 | /* |
| 369 | * Get the length of the address part. |
| 370 | */ |
| 371 | PJ_DEF(unsigned) pj_sockaddr_get_addr_len(const pj_sockaddr_t *addr) |
| 372 | { |
| 373 | const pj_sockaddr *a = (const pj_sockaddr*) addr; |
| 374 | PJ_ASSERT_RETURN(a->addr.sa_family == PJ_AF_INET || |
Benny Prijono | f4385cd | 2009-12-29 16:53:33 +0000 | [diff] [blame] | 375 | a->addr.sa_family == PJ_AF_INET6, 0); |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 376 | return a->addr.sa_family == PJ_AF_INET6 ? |
| 377 | sizeof(pj_in6_addr) : sizeof(pj_in_addr); |
| 378 | } |
| 379 | |
| 380 | /* |
Benny Prijono | 80025db | 2007-12-02 15:36:46 +0000 | [diff] [blame] | 381 | * Get socket address length. |
| 382 | */ |
| 383 | PJ_DEF(unsigned) pj_sockaddr_get_len(const pj_sockaddr_t *addr) |
| 384 | { |
| 385 | const pj_sockaddr *a = (const pj_sockaddr*) addr; |
| 386 | PJ_ASSERT_RETURN(a->addr.sa_family == PJ_AF_INET || |
Benny Prijono | f4385cd | 2009-12-29 16:53:33 +0000 | [diff] [blame] | 387 | a->addr.sa_family == PJ_AF_INET6, 0); |
Benny Prijono | 80025db | 2007-12-02 15:36:46 +0000 | [diff] [blame] | 388 | return a->addr.sa_family == PJ_AF_INET6 ? |
| 389 | sizeof(pj_sockaddr_in6) : sizeof(pj_sockaddr_in); |
| 390 | } |
| 391 | |
| 392 | /* |
Benny Prijono | 40c2633 | 2007-12-03 14:33:39 +0000 | [diff] [blame] | 393 | * Copy only the address part (sin_addr/sin6_addr) of a socket address. |
| 394 | */ |
| 395 | PJ_DEF(void) pj_sockaddr_copy_addr( pj_sockaddr *dst, |
| 396 | const pj_sockaddr *src) |
| 397 | { |
Benny Prijono | 1243ffb | 2008-08-13 08:41:42 +0000 | [diff] [blame] | 398 | /* Destination sockaddr might not be initialized */ |
| 399 | const char *srcbuf = (char*)pj_sockaddr_get_addr(src); |
| 400 | char *dstbuf = ((char*)dst) + (srcbuf - (char*)src); |
| 401 | pj_memcpy(dstbuf, srcbuf, pj_sockaddr_get_addr_len(src)); |
Benny Prijono | 40c2633 | 2007-12-03 14:33:39 +0000 | [diff] [blame] | 402 | } |
| 403 | |
| 404 | /* |
Benny Prijono | 842754c | 2008-05-11 18:11:32 +0000 | [diff] [blame] | 405 | * Copy socket address. |
| 406 | */ |
| 407 | PJ_DEF(void) pj_sockaddr_cp(pj_sockaddr_t *dst, const pj_sockaddr_t *src) |
| 408 | { |
| 409 | pj_memcpy(dst, src, pj_sockaddr_get_len(src)); |
| 410 | } |
| 411 | |
| 412 | /* |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 413 | * Set port number of pj_sockaddr_in |
| 414 | */ |
| 415 | PJ_DEF(void) pj_sockaddr_in_set_port(pj_sockaddr_in *addr, |
| 416 | pj_uint16_t hostport) |
| 417 | { |
| 418 | addr->sin_port = pj_htons(hostport); |
| 419 | } |
| 420 | |
| 421 | /* |
| 422 | * Set port number of pj_sockaddr |
| 423 | */ |
| 424 | PJ_DEF(pj_status_t) pj_sockaddr_set_port(pj_sockaddr *addr, |
| 425 | pj_uint16_t hostport) |
| 426 | { |
| 427 | int af = addr->addr.sa_family; |
| 428 | |
Benny Prijono | 80025db | 2007-12-02 15:36:46 +0000 | [diff] [blame] | 429 | PJ_ASSERT_RETURN(af==PJ_AF_INET || af==PJ_AF_INET6, PJ_EINVAL); |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 430 | |
| 431 | if (af == PJ_AF_INET6) |
| 432 | addr->ipv6.sin6_port = pj_htons(hostport); |
| 433 | else |
| 434 | addr->ipv4.sin_port = pj_htons(hostport); |
| 435 | |
| 436 | return PJ_SUCCESS; |
| 437 | } |
| 438 | |
| 439 | /* |
| 440 | * Get IPv4 address |
| 441 | */ |
| 442 | PJ_DEF(pj_in_addr) pj_sockaddr_in_get_addr(const pj_sockaddr_in *addr) |
| 443 | { |
| 444 | pj_in_addr in_addr; |
| 445 | in_addr.s_addr = pj_ntohl(addr->sin_addr.s_addr); |
| 446 | return in_addr; |
| 447 | } |
| 448 | |
| 449 | /* |
| 450 | * Set IPv4 address |
| 451 | */ |
| 452 | PJ_DEF(void) pj_sockaddr_in_set_addr(pj_sockaddr_in *addr, |
| 453 | pj_uint32_t hostaddr) |
| 454 | { |
| 455 | addr->sin_addr.s_addr = pj_htonl(hostaddr); |
| 456 | } |
| 457 | |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 458 | /* |
| 459 | * Parse address |
| 460 | */ |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 461 | PJ_DEF(pj_status_t) pj_sockaddr_parse2(int af, unsigned options, |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 462 | const pj_str_t *str, |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 463 | pj_str_t *p_hostpart, |
| 464 | pj_uint16_t *p_port, |
| 465 | int *raf) |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 466 | { |
| 467 | const char *end = str->ptr + str->slen; |
| 468 | const char *last_colon_pos = NULL; |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 469 | unsigned colon_cnt = 0; |
| 470 | const char *p; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 471 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 472 | PJ_ASSERT_RETURN((af==PJ_AF_INET || af==PJ_AF_INET6 || af==PJ_AF_UNSPEC) && |
| 473 | options==0 && |
| 474 | str!=NULL, PJ_EINVAL); |
| 475 | |
| 476 | /* Special handling for empty input */ |
| 477 | if (str->slen==0 || str->ptr==NULL) { |
| 478 | if (p_hostpart) |
| 479 | p_hostpart->slen = 0; |
| 480 | if (p_port) |
| 481 | *p_port = 0; |
Benny Prijono | 2c496ba | 2010-05-26 15:10:07 +0000 | [diff] [blame] | 482 | if (raf) |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 483 | *raf = PJ_AF_INET; |
| 484 | return PJ_SUCCESS; |
| 485 | } |
| 486 | |
| 487 | /* Count the colon and get the last colon */ |
| 488 | for (p=str->ptr; p!=end; ++p) { |
| 489 | if (*p == ':') { |
| 490 | ++colon_cnt; |
| 491 | last_colon_pos = p; |
| 492 | } |
| 493 | } |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 494 | |
| 495 | /* Deduce address family if it's not given */ |
| 496 | if (af == PJ_AF_UNSPEC) { |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 497 | if (colon_cnt > 1) |
| 498 | af = PJ_AF_INET6; |
| 499 | else |
| 500 | af = PJ_AF_INET; |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 501 | } else if (af == PJ_AF_INET && colon_cnt > 1) |
| 502 | return PJ_EINVAL; |
| 503 | |
| 504 | if (raf) |
| 505 | *raf = af; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 506 | |
| 507 | if (af == PJ_AF_INET) { |
| 508 | /* Parse as IPv4. Supported formats: |
| 509 | * - "10.0.0.1:80" |
| 510 | * - "10.0.0.1" |
| 511 | * - "10.0.0.1:" |
| 512 | * - ":80" |
| 513 | * - ":" |
| 514 | */ |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 515 | pj_str_t hostpart; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 516 | unsigned long port; |
| 517 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 518 | hostpart.ptr = (char*)str->ptr; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 519 | |
| 520 | if (last_colon_pos) { |
| 521 | pj_str_t port_part; |
| 522 | int i; |
| 523 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 524 | hostpart.slen = last_colon_pos - str->ptr; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 525 | |
| 526 | port_part.ptr = (char*)last_colon_pos + 1; |
| 527 | port_part.slen = end - port_part.ptr; |
| 528 | |
| 529 | /* Make sure port number is valid */ |
| 530 | for (i=0; i<port_part.slen; ++i) { |
| 531 | if (!pj_isdigit(port_part.ptr[i])) |
| 532 | return PJ_EINVAL; |
| 533 | } |
| 534 | port = pj_strtoul(&port_part); |
| 535 | if (port > 65535) |
| 536 | return PJ_EINVAL; |
| 537 | } else { |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 538 | hostpart.slen = str->slen; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 539 | port = 0; |
| 540 | } |
| 541 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 542 | if (p_hostpart) |
| 543 | *p_hostpart = hostpart; |
| 544 | if (p_port) |
| 545 | *p_port = (pj_uint16_t)port; |
| 546 | |
| 547 | return PJ_SUCCESS; |
| 548 | |
| 549 | } else if (af == PJ_AF_INET6) { |
| 550 | |
| 551 | /* Parse as IPv6. Supported formats: |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 552 | * - "fe::01:80" ==> note: port number is zero in this case, not 80! |
| 553 | * - "[fe::01]:80" |
| 554 | * - "fe::01" |
| 555 | * - "fe::01:" |
| 556 | * - "[fe::01]" |
| 557 | * - "[fe::01]:" |
| 558 | * - "[::]:80" |
| 559 | * - ":::80" |
| 560 | * - "[::]" |
| 561 | * - "[::]:" |
| 562 | * - ":::" |
| 563 | * - "::" |
| 564 | */ |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 565 | pj_str_t hostpart, port_part; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 566 | |
| 567 | if (*str->ptr == '[') { |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 568 | char *end_bracket; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 569 | int i; |
| 570 | unsigned long port; |
| 571 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 572 | if (last_colon_pos == NULL) |
| 573 | return PJ_EINVAL; |
| 574 | |
| 575 | end_bracket = pj_strchr(str, ']'); |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 576 | if (end_bracket == NULL) |
| 577 | return PJ_EINVAL; |
| 578 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 579 | hostpart.ptr = (char*)str->ptr + 1; |
| 580 | hostpart.slen = end_bracket - hostpart.ptr; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 581 | |
| 582 | if (last_colon_pos < end_bracket) { |
| 583 | port_part.ptr = NULL; |
| 584 | port_part.slen = 0; |
| 585 | } else { |
| 586 | port_part.ptr = (char*)last_colon_pos + 1; |
| 587 | port_part.slen = end - port_part.ptr; |
| 588 | } |
| 589 | |
| 590 | /* Make sure port number is valid */ |
| 591 | for (i=0; i<port_part.slen; ++i) { |
| 592 | if (!pj_isdigit(port_part.ptr[i])) |
| 593 | return PJ_EINVAL; |
| 594 | } |
| 595 | port = pj_strtoul(&port_part); |
| 596 | if (port > 65535) |
| 597 | return PJ_EINVAL; |
| 598 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 599 | if (p_hostpart) |
| 600 | *p_hostpart = hostpart; |
| 601 | if (p_port) |
| 602 | *p_port = (pj_uint16_t)port; |
| 603 | |
| 604 | return PJ_SUCCESS; |
| 605 | |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 606 | } else { |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 607 | /* Treat everything as part of the IPv6 IP address */ |
| 608 | if (p_hostpart) |
| 609 | *p_hostpart = *str; |
| 610 | if (p_port) |
| 611 | *p_port = 0; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 612 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 613 | return PJ_SUCCESS; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 614 | } |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 615 | |
| 616 | } else { |
| 617 | return PJ_EAFNOTSUP; |
| 618 | } |
| 619 | |
| 620 | } |
| 621 | |
| 622 | /* |
| 623 | * Parse address |
| 624 | */ |
| 625 | PJ_DEF(pj_status_t) pj_sockaddr_parse( int af, unsigned options, |
| 626 | const pj_str_t *str, |
| 627 | pj_sockaddr *addr) |
| 628 | { |
| 629 | pj_str_t hostpart; |
| 630 | pj_uint16_t port; |
| 631 | pj_status_t status; |
| 632 | |
| 633 | PJ_ASSERT_RETURN(addr, PJ_EINVAL); |
| 634 | PJ_ASSERT_RETURN(af==PJ_AF_UNSPEC || |
| 635 | af==PJ_AF_INET || |
| 636 | af==PJ_AF_INET6, PJ_EINVAL); |
| 637 | PJ_ASSERT_RETURN(options == 0, PJ_EINVAL); |
| 638 | |
| 639 | status = pj_sockaddr_parse2(af, options, str, &hostpart, &port, &af); |
| 640 | if (status != PJ_SUCCESS) |
| 641 | return status; |
| 642 | |
Benny Prijono | fe73251 | 2009-08-17 10:10:31 +0000 | [diff] [blame] | 643 | #if !defined(PJ_HAS_IPV6) || !PJ_HAS_IPV6 |
| 644 | if (af==PJ_AF_INET6) |
| 645 | return PJ_EIPV6NOTSUP; |
| 646 | #endif |
| 647 | |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 648 | status = pj_sockaddr_init(af, addr, &hostpart, port); |
| 649 | #if defined(PJ_HAS_IPV6) && PJ_HAS_IPV6 |
| 650 | if (status != PJ_SUCCESS && af == PJ_AF_INET6) { |
| 651 | /* Parsing does not yield valid address. Try to treat the last |
| 652 | * portion after the colon as port number. |
| 653 | */ |
| 654 | const char *last_colon_pos=NULL, *p; |
| 655 | const char *end = str->ptr + str->slen; |
| 656 | unsigned long long_port; |
| 657 | pj_str_t port_part; |
| 658 | int i; |
| 659 | |
| 660 | /* Parse as IPv6:port */ |
| 661 | for (p=str->ptr; p!=end; ++p) { |
| 662 | if (*p == ':') |
| 663 | last_colon_pos = p; |
| 664 | } |
| 665 | |
| 666 | if (last_colon_pos == NULL) |
| 667 | return status; |
| 668 | |
| 669 | hostpart.ptr = (char*)str->ptr; |
| 670 | hostpart.slen = last_colon_pos - str->ptr; |
| 671 | |
| 672 | port_part.ptr = (char*)last_colon_pos + 1; |
| 673 | port_part.slen = end - port_part.ptr; |
| 674 | |
| 675 | /* Make sure port number is valid */ |
| 676 | for (i=0; i<port_part.slen; ++i) { |
| 677 | if (!pj_isdigit(port_part.ptr[i])) |
| 678 | return status; |
| 679 | } |
| 680 | long_port = pj_strtoul(&port_part); |
| 681 | if (long_port > 65535) |
| 682 | return status; |
| 683 | |
| 684 | port = (pj_uint16_t)long_port; |
| 685 | |
| 686 | status = pj_sockaddr_init(PJ_AF_INET6, addr, &hostpart, port); |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 687 | } |
| 688 | #endif |
Benny Prijono | 9f0ef09 | 2009-08-12 10:56:06 +0000 | [diff] [blame] | 689 | |
| 690 | return status; |
Benny Prijono | 0f4b9db | 2009-06-04 15:11:25 +0000 | [diff] [blame] | 691 | } |
| 692 | |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 693 | /* Resolve the IP address of local machine */ |
| 694 | PJ_DEF(pj_status_t) pj_gethostip(int af, pj_sockaddr *addr) |
| 695 | { |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 696 | unsigned i, count, cand_cnt; |
| 697 | enum { |
| 698 | CAND_CNT = 8, |
Benny Prijono | 1e79d21 | 2010-03-26 05:44:04 +0000 | [diff] [blame] | 699 | |
| 700 | /* Weighting to be applied to found addresses */ |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 701 | WEIGHT_HOSTNAME = 1, /* hostname IP is not always valid! */ |
| 702 | WEIGHT_DEF_ROUTE = 2, |
Benny Prijono | 1e79d21 | 2010-03-26 05:44:04 +0000 | [diff] [blame] | 703 | WEIGHT_INTERFACE = 1, |
Benny Prijono | 4fa2999 | 2010-03-30 13:31:22 +0000 | [diff] [blame] | 704 | WEIGHT_LOOPBACK = -5, |
| 705 | WEIGHT_LINK_LOCAL = -4, |
Benny Prijono | 1e79d21 | 2010-03-26 05:44:04 +0000 | [diff] [blame] | 706 | WEIGHT_DISABLED = -50, |
| 707 | |
| 708 | MIN_WEIGHT = WEIGHT_DISABLED+1 /* minimum weight to use */ |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 709 | }; |
| 710 | /* candidates: */ |
| 711 | pj_sockaddr cand_addr[CAND_CNT]; |
Benny Prijono | 1e79d21 | 2010-03-26 05:44:04 +0000 | [diff] [blame] | 712 | int cand_weight[CAND_CNT]; |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 713 | int selected_cand; |
| 714 | char strip[PJ_INET6_ADDRSTRLEN+10]; |
Benny Prijono | 1e79d21 | 2010-03-26 05:44:04 +0000 | [diff] [blame] | 715 | /* Special IPv4 addresses. */ |
| 716 | struct spec_ipv4_t |
| 717 | { |
| 718 | pj_uint32_t addr; |
| 719 | pj_uint32_t mask; |
| 720 | int weight; |
| 721 | } spec_ipv4[] = |
| 722 | { |
| 723 | /* 127.0.0.0/8, loopback addr will be used if there is no other |
| 724 | * addresses. |
| 725 | */ |
| 726 | { 0x7f000000, 0xFF000000, WEIGHT_LOOPBACK }, |
| 727 | |
| 728 | /* 0.0.0.0/8, special IP that doesn't seem to be practically useful */ |
| 729 | { 0x00000000, 0xFF000000, WEIGHT_DISABLED }, |
| 730 | |
| 731 | /* 169.254.0.0/16, a zeroconf/link-local address, which has higher |
| 732 | * priority than loopback and will be used if there is no other |
| 733 | * valid addresses. |
| 734 | */ |
| 735 | { 0xa9fe0000, 0xFFFF0000, WEIGHT_LINK_LOCAL } |
| 736 | }; |
| 737 | /* Special IPv6 addresses */ |
| 738 | struct spec_ipv6_t |
| 739 | { |
| 740 | pj_uint8_t addr[16]; |
| 741 | pj_uint8_t mask[16]; |
| 742 | int weight; |
| 743 | } spec_ipv6[] = |
| 744 | { |
| 745 | /* Loopback address, ::1/128 */ |
| 746 | { {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, |
| 747 | {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, |
| 748 | 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}, |
| 749 | WEIGHT_LOOPBACK |
| 750 | }, |
| 751 | |
| 752 | /* Link local, fe80::/10 */ |
| 753 | { {0xfe,0x80,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, |
| 754 | {0xff,0xc0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, |
| 755 | WEIGHT_LINK_LOCAL |
| 756 | }, |
| 757 | |
| 758 | /* Disabled, ::/128 */ |
| 759 | { {0x0,0x0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, |
| 760 | { 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, |
| 761 | 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}, |
| 762 | WEIGHT_DISABLED |
| 763 | } |
| 764 | }; |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 765 | pj_addrinfo ai; |
| 766 | pj_status_t status; |
| 767 | |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 768 | /* May not be used if TRACE_ is disabled */ |
| 769 | PJ_UNUSED_ARG(strip); |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 770 | |
| 771 | #ifdef _MSC_VER |
| 772 | /* Get rid of "uninitialized he variable" with MS compilers */ |
| 773 | pj_bzero(&ai, sizeof(ai)); |
| 774 | #endif |
| 775 | |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 776 | cand_cnt = 0; |
| 777 | pj_bzero(cand_addr, sizeof(cand_addr)); |
| 778 | pj_bzero(cand_weight, sizeof(cand_weight)); |
| 779 | for (i=0; i<PJ_ARRAY_SIZE(cand_addr); ++i) { |
| 780 | cand_addr[i].addr.sa_family = (pj_uint16_t)af; |
| 781 | PJ_SOCKADDR_RESET_LEN(&cand_addr[i]); |
| 782 | } |
| 783 | |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 784 | addr->addr.sa_family = (pj_uint16_t)af; |
| 785 | PJ_SOCKADDR_RESET_LEN(addr); |
| 786 | |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 787 | /* Get hostname's IP address */ |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 788 | count = 1; |
| 789 | status = pj_getaddrinfo(af, pj_gethostname(), &count, &ai); |
| 790 | if (status == PJ_SUCCESS) { |
Benny Prijono | 9db4bd6 | 2007-12-31 11:26:21 +0000 | [diff] [blame] | 791 | pj_assert(ai.ai_addr.addr.sa_family == (pj_uint16_t)af); |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 792 | pj_sockaddr_copy_addr(&cand_addr[cand_cnt], &ai.ai_addr); |
| 793 | pj_sockaddr_set_port(&cand_addr[cand_cnt], 0); |
| 794 | cand_weight[cand_cnt] += WEIGHT_HOSTNAME; |
| 795 | ++cand_cnt; |
| 796 | |
| 797 | TRACE_((THIS_FILE, "hostname IP is %s", |
| 798 | pj_sockaddr_print(&ai.ai_addr, strip, sizeof(strip), 0))); |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 799 | } |
| 800 | |
| 801 | |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 802 | /* Get default interface (interface for default route) */ |
| 803 | if (cand_cnt < PJ_ARRAY_SIZE(cand_addr)) { |
| 804 | status = pj_getdefaultipinterface(af, addr); |
| 805 | if (status == PJ_SUCCESS) { |
| 806 | TRACE_((THIS_FILE, "default IP is %s", |
| 807 | pj_sockaddr_print(addr, strip, sizeof(strip), 0))); |
| 808 | |
| 809 | pj_sockaddr_set_port(addr, 0); |
| 810 | for (i=0; i<cand_cnt; ++i) { |
| 811 | if (pj_sockaddr_cmp(&cand_addr[i], addr)==0) |
| 812 | break; |
| 813 | } |
| 814 | |
| 815 | cand_weight[i] += WEIGHT_DEF_ROUTE; |
| 816 | if (i >= cand_cnt) { |
| 817 | pj_sockaddr_copy_addr(&cand_addr[i], addr); |
| 818 | ++cand_cnt; |
| 819 | } |
| 820 | } |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 821 | } |
| 822 | |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 823 | |
| 824 | /* Enumerate IP interfaces */ |
| 825 | if (cand_cnt < PJ_ARRAY_SIZE(cand_addr)) { |
| 826 | unsigned start_if = cand_cnt; |
| 827 | unsigned count = PJ_ARRAY_SIZE(cand_addr) - start_if; |
| 828 | |
| 829 | status = pj_enum_ip_interface(af, &count, &cand_addr[start_if]); |
| 830 | if (status == PJ_SUCCESS && count) { |
| 831 | /* Clear the port number */ |
| 832 | for (i=0; i<count; ++i) |
| 833 | pj_sockaddr_set_port(&cand_addr[start_if+i], 0); |
| 834 | |
| 835 | /* For each candidate that we found so far (that is the hostname |
| 836 | * address and default interface address, check if they're found |
| 837 | * in the interface list. If found, add the weight, and if not, |
| 838 | * decrease the weight. |
| 839 | */ |
| 840 | for (i=0; i<cand_cnt; ++i) { |
| 841 | unsigned j; |
| 842 | for (j=0; j<count; ++j) { |
| 843 | if (pj_sockaddr_cmp(&cand_addr[i], |
| 844 | &cand_addr[start_if+j])==0) |
| 845 | break; |
Benny Prijono | 9db4bd6 | 2007-12-31 11:26:21 +0000 | [diff] [blame] | 846 | } |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 847 | |
| 848 | if (j == count) { |
| 849 | /* Not found */ |
| 850 | cand_weight[i] -= WEIGHT_INTERFACE; |
| 851 | } else { |
| 852 | cand_weight[i] += WEIGHT_INTERFACE; |
| 853 | } |
| 854 | } |
| 855 | |
| 856 | /* Add remaining interface to candidate list. */ |
| 857 | for (i=0; i<count; ++i) { |
| 858 | unsigned j; |
| 859 | for (j=0; j<cand_cnt; ++j) { |
| 860 | if (pj_sockaddr_cmp(&cand_addr[start_if+i], |
| 861 | &cand_addr[j])==0) |
| 862 | break; |
| 863 | } |
| 864 | |
| 865 | if (j == cand_cnt) { |
| 866 | pj_sockaddr_copy_addr(&cand_addr[cand_cnt], |
| 867 | &cand_addr[start_if+i]); |
| 868 | cand_weight[cand_cnt] += WEIGHT_INTERFACE; |
| 869 | ++cand_cnt; |
| 870 | } |
| 871 | } |
| 872 | } |
| 873 | } |
| 874 | |
Benny Prijono | 1e79d21 | 2010-03-26 05:44:04 +0000 | [diff] [blame] | 875 | /* Apply weight adjustment for special IPv4/IPv6 addresses |
| 876 | * See http://trac.pjsip.org/repos/ticket/1046 |
| 877 | */ |
| 878 | if (af == PJ_AF_INET) { |
| 879 | for (i=0; i<cand_cnt; ++i) { |
| 880 | unsigned j; |
| 881 | for (j=0; j<PJ_ARRAY_SIZE(spec_ipv4); ++j) { |
| 882 | pj_uint32_t a = pj_ntohl(cand_addr[i].ipv4.sin_addr.s_addr); |
| 883 | pj_uint32_t pa = spec_ipv4[j].addr; |
| 884 | pj_uint32_t pm = spec_ipv4[j].mask; |
| 885 | |
| 886 | if ((a & pm) == pa) { |
| 887 | cand_weight[i] += spec_ipv4[j].weight; |
| 888 | break; |
| 889 | } |
| 890 | } |
| 891 | } |
| 892 | } else if (af == PJ_AF_INET6) { |
| 893 | for (i=0; i<PJ_ARRAY_SIZE(spec_ipv6); ++i) { |
| 894 | unsigned j; |
| 895 | for (j=0; j<cand_cnt; ++j) { |
| 896 | pj_uint8_t *a = cand_addr[j].ipv6.sin6_addr.s6_addr; |
| 897 | pj_uint8_t am[16]; |
| 898 | pj_uint8_t *pa = spec_ipv6[i].addr; |
| 899 | pj_uint8_t *pm = spec_ipv6[i].mask; |
| 900 | unsigned k; |
| 901 | |
| 902 | for (k=0; k<16; ++k) { |
Benny Prijono | 2459bd1 | 2010-03-27 03:11:04 +0000 | [diff] [blame] | 903 | am[k] = (pj_uint8_t)((a[k] & pm[k]) & 0xFF); |
Benny Prijono | 1e79d21 | 2010-03-26 05:44:04 +0000 | [diff] [blame] | 904 | } |
| 905 | |
| 906 | if (pj_memcmp(am, pa, 16)==0) { |
| 907 | cand_weight[j] += spec_ipv6[i].weight; |
| 908 | } |
| 909 | } |
| 910 | } |
| 911 | } else { |
| 912 | return PJ_EAFNOTSUP; |
| 913 | } |
| 914 | |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 915 | /* Enumerate candidates to get the best IP address to choose */ |
| 916 | selected_cand = -1; |
| 917 | for (i=0; i<cand_cnt; ++i) { |
| 918 | TRACE_((THIS_FILE, "Checking candidate IP %s, weight=%d", |
| 919 | pj_sockaddr_print(&cand_addr[i], strip, sizeof(strip), 0), |
| 920 | cand_weight[i])); |
| 921 | |
Benny Prijono | 1e79d21 | 2010-03-26 05:44:04 +0000 | [diff] [blame] | 922 | if (cand_weight[i] < MIN_WEIGHT) { |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 923 | continue; |
| 924 | } |
| 925 | |
| 926 | if (selected_cand == -1) |
| 927 | selected_cand = i; |
| 928 | else if (cand_weight[i] > cand_weight[selected_cand]) |
| 929 | selected_cand = i; |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 930 | } |
| 931 | |
| 932 | /* If else fails, returns loopback interface as the last resort */ |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 933 | if (selected_cand == -1) { |
| 934 | if (af==PJ_AF_INET) { |
| 935 | addr->ipv4.sin_addr.s_addr = pj_htonl (0x7f000001); |
| 936 | } else { |
| 937 | pj_in6_addr *s6_addr; |
| 938 | |
| 939 | s6_addr = (pj_in6_addr*) pj_sockaddr_get_addr(addr); |
| 940 | pj_bzero(s6_addr, sizeof(pj_in6_addr)); |
| 941 | s6_addr->s6_addr[15] = 1; |
| 942 | } |
| 943 | TRACE_((THIS_FILE, "Loopback IP %s returned", |
| 944 | pj_sockaddr_print(addr, strip, sizeof(strip), 0))); |
| 945 | } else { |
| 946 | pj_sockaddr_copy_addr(addr, &cand_addr[selected_cand]); |
| 947 | TRACE_((THIS_FILE, "Candidate %s selected", |
| 948 | pj_sockaddr_print(addr, strip, sizeof(strip), 0))); |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 949 | } |
| 950 | |
Benny Prijono | 27fc143 | 2009-04-28 13:47:45 +0000 | [diff] [blame] | 951 | return PJ_SUCCESS; |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 952 | } |
| 953 | |
| 954 | /* Get the default IP interface */ |
| 955 | PJ_DEF(pj_status_t) pj_getdefaultipinterface(int af, pj_sockaddr *addr) |
| 956 | { |
| 957 | pj_sock_t fd; |
| 958 | pj_str_t cp; |
| 959 | pj_sockaddr a; |
| 960 | int len; |
| 961 | pj_uint8_t zero[64]; |
| 962 | pj_status_t status; |
| 963 | |
| 964 | addr->addr.sa_family = (pj_uint16_t)af; |
| 965 | |
| 966 | status = pj_sock_socket(af, pj_SOCK_DGRAM(), 0, &fd); |
| 967 | if (status != PJ_SUCCESS) { |
| 968 | return status; |
| 969 | } |
| 970 | |
| 971 | if (af == PJ_AF_INET) { |
| 972 | cp = pj_str("1.1.1.1"); |
| 973 | } else { |
| 974 | cp = pj_str("1::1"); |
| 975 | } |
| 976 | status = pj_sockaddr_init(af, &a, &cp, 53); |
| 977 | if (status != PJ_SUCCESS) { |
| 978 | pj_sock_close(fd); |
| 979 | return status; |
| 980 | } |
| 981 | |
Benny Prijono | 03d9bc8 | 2010-02-24 09:04:46 +0000 | [diff] [blame] | 982 | status = pj_sock_connect(fd, &a, pj_sockaddr_get_len(&a)); |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 983 | if (status != PJ_SUCCESS) { |
| 984 | pj_sock_close(fd); |
| 985 | return status; |
| 986 | } |
| 987 | |
| 988 | len = sizeof(a); |
| 989 | status = pj_sock_getsockname(fd, &a, &len); |
| 990 | if (status != PJ_SUCCESS) { |
| 991 | pj_sock_close(fd); |
| 992 | return status; |
| 993 | } |
| 994 | |
| 995 | pj_sock_close(fd); |
| 996 | |
| 997 | /* Check that the address returned is not zero */ |
| 998 | pj_bzero(zero, sizeof(zero)); |
| 999 | if (pj_memcmp(pj_sockaddr_get_addr(&a), zero, |
| 1000 | pj_sockaddr_get_addr_len(&a))==0) |
| 1001 | { |
| 1002 | return PJ_ENOTFOUND; |
| 1003 | } |
| 1004 | |
Benny Prijono | 9db4bd6 | 2007-12-31 11:26:21 +0000 | [diff] [blame] | 1005 | pj_sockaddr_copy_addr(addr, &a); |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 1006 | |
| 1007 | /* Success */ |
| 1008 | return PJ_SUCCESS; |
| 1009 | } |
| 1010 | |
| 1011 | |
| 1012 | /* Only need to implement these in DLL build */ |
| 1013 | #if defined(PJ_DLL) |
Benny Prijono | 8ab968f | 2007-07-20 08:08:30 +0000 | [diff] [blame] | 1014 | |
Benny Prijono | c16c6e3 | 2007-11-18 14:53:47 +0000 | [diff] [blame] | 1015 | PJ_DEF(pj_uint16_t) pj_AF_UNSPEC(void) |
| 1016 | { |
| 1017 | return PJ_AF_UNSPEC; |
| 1018 | } |
| 1019 | |
Benny Prijono | 8ab968f | 2007-07-20 08:08:30 +0000 | [diff] [blame] | 1020 | PJ_DEF(pj_uint16_t) pj_AF_UNIX(void) |
| 1021 | { |
| 1022 | return PJ_AF_UNIX; |
| 1023 | } |
| 1024 | |
| 1025 | PJ_DEF(pj_uint16_t) pj_AF_INET(void) |
| 1026 | { |
| 1027 | return PJ_AF_INET; |
| 1028 | } |
| 1029 | |
| 1030 | PJ_DEF(pj_uint16_t) pj_AF_INET6(void) |
| 1031 | { |
| 1032 | return PJ_AF_INET6; |
| 1033 | } |
| 1034 | |
| 1035 | PJ_DEF(pj_uint16_t) pj_AF_PACKET(void) |
| 1036 | { |
| 1037 | return PJ_AF_PACKET; |
| 1038 | } |
| 1039 | |
| 1040 | PJ_DEF(pj_uint16_t) pj_AF_IRDA(void) |
| 1041 | { |
| 1042 | return PJ_AF_IRDA; |
| 1043 | } |
| 1044 | |
| 1045 | PJ_DEF(int) pj_SOCK_STREAM(void) |
| 1046 | { |
| 1047 | return PJ_SOCK_STREAM; |
| 1048 | } |
| 1049 | |
| 1050 | PJ_DEF(int) pj_SOCK_DGRAM(void) |
| 1051 | { |
| 1052 | return PJ_SOCK_DGRAM; |
| 1053 | } |
| 1054 | |
| 1055 | PJ_DEF(int) pj_SOCK_RAW(void) |
| 1056 | { |
| 1057 | return PJ_SOCK_RAW; |
| 1058 | } |
| 1059 | |
| 1060 | PJ_DEF(int) pj_SOCK_RDM(void) |
| 1061 | { |
| 1062 | return PJ_SOCK_RDM; |
| 1063 | } |
| 1064 | |
| 1065 | PJ_DEF(pj_uint16_t) pj_SOL_SOCKET(void) |
| 1066 | { |
| 1067 | return PJ_SOL_SOCKET; |
| 1068 | } |
| 1069 | |
| 1070 | PJ_DEF(pj_uint16_t) pj_SOL_IP(void) |
| 1071 | { |
| 1072 | return PJ_SOL_IP; |
| 1073 | } |
| 1074 | |
| 1075 | PJ_DEF(pj_uint16_t) pj_SOL_TCP(void) |
| 1076 | { |
| 1077 | return PJ_SOL_TCP; |
| 1078 | } |
| 1079 | |
| 1080 | PJ_DEF(pj_uint16_t) pj_SOL_UDP(void) |
| 1081 | { |
| 1082 | return PJ_SOL_UDP; |
| 1083 | } |
| 1084 | |
| 1085 | PJ_DEF(pj_uint16_t) pj_SOL_IPV6(void) |
| 1086 | { |
| 1087 | return PJ_SOL_IPV6; |
| 1088 | } |
| 1089 | |
| 1090 | PJ_DEF(int) pj_IP_TOS(void) |
| 1091 | { |
| 1092 | return PJ_IP_TOS; |
| 1093 | } |
| 1094 | |
| 1095 | PJ_DEF(int) pj_IPTOS_LOWDELAY(void) |
| 1096 | { |
| 1097 | return PJ_IPTOS_LOWDELAY; |
| 1098 | } |
| 1099 | |
| 1100 | PJ_DEF(int) pj_IPTOS_THROUGHPUT(void) |
| 1101 | { |
| 1102 | return PJ_IPTOS_THROUGHPUT; |
| 1103 | } |
| 1104 | |
| 1105 | PJ_DEF(int) pj_IPTOS_RELIABILITY(void) |
| 1106 | { |
| 1107 | return PJ_IPTOS_RELIABILITY; |
| 1108 | } |
| 1109 | |
| 1110 | PJ_DEF(int) pj_IPTOS_MINCOST(void) |
| 1111 | { |
| 1112 | return PJ_IPTOS_MINCOST; |
| 1113 | } |
| 1114 | |
| 1115 | PJ_DEF(pj_uint16_t) pj_SO_TYPE(void) |
| 1116 | { |
| 1117 | return PJ_SO_TYPE; |
| 1118 | } |
| 1119 | |
| 1120 | PJ_DEF(pj_uint16_t) pj_SO_RCVBUF(void) |
| 1121 | { |
| 1122 | return PJ_SO_RCVBUF; |
| 1123 | } |
| 1124 | |
| 1125 | PJ_DEF(pj_uint16_t) pj_SO_SNDBUF(void) |
| 1126 | { |
| 1127 | return PJ_SO_SNDBUF; |
| 1128 | } |
| 1129 | |
Benny Prijono | db04cd5 | 2009-10-15 03:48:20 +0000 | [diff] [blame] | 1130 | PJ_DEF(pj_uint16_t) pj_TCP_NODELAY(void) |
| 1131 | { |
| 1132 | return PJ_TCP_NODELAY; |
| 1133 | } |
| 1134 | |
| 1135 | PJ_DEF(pj_uint16_t) pj_SO_REUSEADDR(void) |
| 1136 | { |
| 1137 | return PJ_SO_REUSEADDR; |
| 1138 | } |
| 1139 | |
Benny Prijono | 4d79b0f | 2009-10-25 09:02:07 +0000 | [diff] [blame] | 1140 | PJ_DEF(pj_uint16_t) pj_SO_PRIORITY(void) |
| 1141 | { |
| 1142 | return PJ_SO_PRIORITY; |
| 1143 | } |
| 1144 | |
Nanang Izzuddin | b76154e | 2008-09-16 16:11:44 +0000 | [diff] [blame] | 1145 | PJ_DEF(pj_uint16_t) pj_IP_MULTICAST_IF(void) |
| 1146 | { |
| 1147 | return PJ_IP_MULTICAST_IF; |
| 1148 | } |
| 1149 | |
| 1150 | PJ_DEF(pj_uint16_t) pj_IP_MULTICAST_TTL(void) |
| 1151 | { |
| 1152 | return PJ_IP_MULTICAST_TTL; |
| 1153 | } |
| 1154 | |
| 1155 | PJ_DEF(pj_uint16_t) pj_IP_MULTICAST_LOOP(void) |
| 1156 | { |
| 1157 | return PJ_IP_MULTICAST_LOOP; |
| 1158 | } |
| 1159 | |
| 1160 | PJ_DEF(pj_uint16_t) pj_IP_ADD_MEMBERSHIP(void) |
| 1161 | { |
| 1162 | return PJ_IP_ADD_MEMBERSHIP; |
| 1163 | } |
| 1164 | |
| 1165 | PJ_DEF(pj_uint16_t) pj_IP_DROP_MEMBERSHIP(void) |
| 1166 | { |
| 1167 | return PJ_IP_DROP_MEMBERSHIP; |
| 1168 | } |
| 1169 | |
Benny Prijono | 8ab968f | 2007-07-20 08:08:30 +0000 | [diff] [blame] | 1170 | PJ_DEF(int) pj_MSG_OOB(void) |
| 1171 | { |
| 1172 | return PJ_MSG_OOB; |
| 1173 | } |
| 1174 | |
| 1175 | PJ_DEF(int) pj_MSG_PEEK(void) |
| 1176 | { |
| 1177 | return PJ_MSG_PEEK; |
| 1178 | } |
| 1179 | |
| 1180 | PJ_DEF(int) pj_MSG_DONTROUTE(void) |
| 1181 | { |
| 1182 | return PJ_MSG_DONTROUTE; |
| 1183 | } |
| 1184 | |
Benny Prijono | 62b86eb | 2007-12-01 08:52:57 +0000 | [diff] [blame] | 1185 | #endif /* PJ_DLL */ |
| 1186 | |