Benny Prijono | dd859a6 | 2005-11-01 16:42:51 +0000 | [diff] [blame^] | 1 | /* $Header: /pjproject-0.3/pjlib/src/pj/sock_linux_kernel.c 4 10/29/05 11:51a Bennylp $ */ |
| 2 | /* |
| 3 | * $Log: /pjproject-0.3/pjlib/src/pj/sock_linux_kernel.c $ |
| 4 | * |
| 5 | * 4 10/29/05 11:51a Bennylp |
| 6 | * Version 0.3-pre2. |
| 7 | * |
| 8 | * 3 10/20/05 9:19a Bennylp |
| 9 | * Updated with new API convention (error code) |
| 10 | * |
| 11 | * 2 10/14/05 12:26a Bennylp |
| 12 | * Finished error code framework, some fixes in ioqueue, etc. Pretty |
| 13 | * major. |
| 14 | * |
| 15 | * 1 10/05/05 4:43p Bennylp |
| 16 | * Created. |
| 17 | * |
| 18 | */ |
| 19 | #include <pj/sock.h> |
| 20 | #include <pj/assert.h> |
| 21 | #include <pj/string.h> /* pj_memcpy() */ |
| 22 | #include <pj/os.h> /* PJ_CHECK_STACK() */ |
| 23 | #include <pj/addr_resolv.h> /* pj_gethostbyname() */ |
| 24 | #include <pj/ctype.h> |
| 25 | #include <pj/compat/sprintf.h> |
| 26 | #include <pj/log.h> |
| 27 | #include <pj/errno.h> |
| 28 | |
| 29 | /* Linux kernel specific. */ |
| 30 | #include <linux/socket.h> |
| 31 | #include <linux/net.h> |
| 32 | //#include <net/sock.h> |
| 33 | #include <linux/security.h> |
| 34 | #include <linux/syscalls.h> /* sys_xxx() */ |
| 35 | #include <asm/ioctls.h> /* FIONBIO */ |
| 36 | #include <linux/utsname.h> /* for pj_gethostname() */ |
| 37 | |
| 38 | /* |
| 39 | * Address families conversion. |
| 40 | * The values here are indexed based on pj_addr_family-0xFF00. |
| 41 | */ |
| 42 | const pj_uint16_t PJ_AF_UNIX = AF_UNIX; |
| 43 | const pj_uint16_t PJ_AF_INET = AF_INET; |
| 44 | const pj_uint16_t PJ_AF_INET6 = AF_INET6; |
| 45 | #ifdef AF_PACKET |
| 46 | const pj_uint16_t PJ_AF_PACKET = AF_PACKET; |
| 47 | #else |
| 48 | # error "AF_PACKET undeclared!" |
| 49 | #endif |
| 50 | #ifdef AF_IRDA |
| 51 | const pj_uint16_t PJ_AF_IRDA = AF_IRDA; |
| 52 | #else |
| 53 | # error "AF_IRDA undeclared!" |
| 54 | #endif |
| 55 | |
| 56 | /* |
| 57 | * Socket types conversion. |
| 58 | * The values here are indexed based on pj_sock_type-0xFF00 |
| 59 | */ |
| 60 | const pj_uint16_t PJ_SOCK_STREAM= SOCK_STREAM; |
| 61 | const pj_uint16_t PJ_SOCK_DGRAM = SOCK_DGRAM; |
| 62 | const pj_uint16_t PJ_SOCK_RAW = SOCK_RAW; |
| 63 | const pj_uint16_t PJ_SOCK_RDM = SOCK_RDM; |
| 64 | |
| 65 | /* |
| 66 | * Socket level values. |
| 67 | */ |
| 68 | const pj_uint16_t PJ_SOL_SOCKET = SOL_SOCKET; |
| 69 | #ifdef SOL_IP |
| 70 | const pj_uint16_t PJ_SOL_IP = SOL_IP; |
| 71 | #else |
| 72 | # error "SOL_IP undeclared!" |
| 73 | #endif /* SOL_IP */ |
| 74 | #if defined(SOL_TCP) |
| 75 | const pj_uint16_t PJ_SOL_TCP = SOL_TCP; |
| 76 | #else |
| 77 | # error "SOL_TCP undeclared!" |
| 78 | #endif /* SOL_TCP */ |
| 79 | #ifdef SOL_UDP |
| 80 | const pj_uint16_t PJ_SOL_UDP = SOL_UDP; |
| 81 | #else |
| 82 | # error "SOL_UDP undeclared!" |
| 83 | #endif |
| 84 | #ifdef SOL_IPV6 |
| 85 | const pj_uint16_t PJ_SOL_IPV6 = SOL_IPV6; |
| 86 | #else |
| 87 | # error "SOL_IPV6 undeclared!" |
| 88 | #endif |
| 89 | |
| 90 | /* |
| 91 | * Convert 16-bit value from network byte order to host byte order. |
| 92 | */ |
| 93 | PJ_DEF(pj_uint16_t) pj_ntohs(pj_uint16_t netshort) |
| 94 | { |
| 95 | return ntohs(netshort); |
| 96 | } |
| 97 | |
| 98 | /* |
| 99 | * Convert 16-bit value from host byte order to network byte order. |
| 100 | */ |
| 101 | PJ_DEF(pj_uint16_t) pj_htons(pj_uint16_t hostshort) |
| 102 | { |
| 103 | return htons(hostshort); |
| 104 | } |
| 105 | |
| 106 | /* |
| 107 | * Convert 32-bit value from network byte order to host byte order. |
| 108 | */ |
| 109 | PJ_DEF(pj_uint32_t) pj_ntohl(pj_uint32_t netlong) |
| 110 | { |
| 111 | return ntohl(netlong); |
| 112 | } |
| 113 | |
| 114 | /* |
| 115 | * Convert 32-bit value from host byte order to network byte order. |
| 116 | */ |
| 117 | PJ_DEF(pj_uint32_t) pj_htonl(pj_uint32_t hostlong) |
| 118 | { |
| 119 | return htonl(hostlong); |
| 120 | } |
| 121 | |
| 122 | /* |
| 123 | * Convert an Internet host address given in network byte order |
| 124 | * to string in standard numbers and dots notation. |
| 125 | */ |
| 126 | PJ_DEF(char*) pj_inet_ntoa(pj_in_addr in) |
| 127 | { |
| 128 | #define UC(b) (((int)b)&0xff) |
| 129 | static char b[18]; |
| 130 | char *p; |
| 131 | |
| 132 | p = (char *)∈ |
| 133 | pj_snprintf(b, sizeof(b), "%d.%d.%d.%d", |
| 134 | UC(p[0]), UC(p[1]), UC(p[2]), UC(p[3])); |
| 135 | |
| 136 | return b; |
| 137 | } |
| 138 | |
| 139 | /* |
| 140 | * This function converts the Internet host address ccp from the standard |
| 141 | * numbers-and-dots notation into binary data and stores it in the structure |
| 142 | * that inp points to. |
| 143 | */ |
| 144 | PJ_DEF(int) pj_inet_aton(const pj_str_t *ccp, struct pj_in_addr *addr) |
| 145 | { |
| 146 | pj_uint32_t val; |
| 147 | int base, n; |
| 148 | char c; |
| 149 | unsigned parts[4]; |
| 150 | unsigned *pp = parts; |
| 151 | char cp_copy[18]; |
| 152 | char *cp = cp_copy; |
| 153 | |
| 154 | addr->s_addr = PJ_INADDR_NONE; |
| 155 | |
| 156 | if (ccp->slen > 15) return 0; |
| 157 | |
| 158 | pj_memcpy(cp, ccp->ptr, ccp->slen); |
| 159 | cp[ccp->slen] = '\0'; |
| 160 | |
| 161 | c = *cp; |
| 162 | for (;;) { |
| 163 | /* |
| 164 | * Collect number up to ``.''. |
| 165 | * Values are specified as for C: |
| 166 | * 0x=hex, 0=octal, isdigit=decimal. |
| 167 | */ |
| 168 | if (!pj_isdigit((int)c)) |
| 169 | return (0); |
| 170 | val = 0; base = 10; |
| 171 | if (c == '0') { |
| 172 | c = *++cp; |
| 173 | if (c == 'x' || c == 'X') |
| 174 | base = 16, c = *++cp; |
| 175 | else |
| 176 | base = 8; |
| 177 | } |
| 178 | |
| 179 | for (;;) { |
| 180 | if (pj_isascii((int)c) && pj_isdigit((int)c)) { |
| 181 | val = (val * base) + (c - '0'); |
| 182 | c = *++cp; |
| 183 | } else if (base==16 && pj_isascii((int)c) && pj_isxdigit((int)c)) { |
| 184 | val = (val << 4) | |
| 185 | (c + 10 - (pj_islower((int)c) ? 'a' : 'A')); |
| 186 | c = *++cp; |
| 187 | } else |
| 188 | break; |
| 189 | } |
| 190 | |
| 191 | if (c == '.') { |
| 192 | /* |
| 193 | * Internet format: |
| 194 | * a.b.c.d |
| 195 | * a.b.c (with c treated as 16 bits) |
| 196 | * a.b (with b treated as 24 bits) |
| 197 | */ |
| 198 | if (pp >= parts + 3) |
| 199 | return (0); |
| 200 | *pp++ = val; |
| 201 | c = *++cp; |
| 202 | } else |
| 203 | break; |
| 204 | } |
| 205 | |
| 206 | /* |
| 207 | * Check for trailing characters. |
| 208 | */ |
| 209 | if (c != '\0' && (!pj_isascii((int)c) || !pj_isspace((int)c))) |
| 210 | return (0); |
| 211 | /* |
| 212 | * Concoct the address according to |
| 213 | * the number of parts specified. |
| 214 | */ |
| 215 | n = pp - parts + 1; |
| 216 | switch (n) { |
| 217 | case 0: |
| 218 | return (0); /* initial nondigit */ |
| 219 | case 1: /* a -- 32 bits */ |
| 220 | break; |
| 221 | case 2: /* a.b -- 8.24 bits */ |
| 222 | if (val > 0xffffff) |
| 223 | return (0); |
| 224 | val |= parts[0] << 24; |
| 225 | break; |
| 226 | case 3: /* a.b.c -- 8.8.16 bits */ |
| 227 | if (val > 0xffff) |
| 228 | return (0); |
| 229 | val |= (parts[0] << 24) | (parts[1] << 16); |
| 230 | break; |
| 231 | case 4: /* a.b.c.d -- 8.8.8.8 bits */ |
| 232 | if (val > 0xff) |
| 233 | return (0); |
| 234 | val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8); |
| 235 | break; |
| 236 | } |
| 237 | |
| 238 | if (addr) |
| 239 | addr->s_addr = pj_htonl(val); |
| 240 | return (1); |
| 241 | } |
| 242 | |
| 243 | /* |
| 244 | * Convert address string with numbers and dots to binary IP address. |
| 245 | */ |
| 246 | PJ_DEF(pj_in_addr) pj_inet_addr(const pj_str_t *cp) |
| 247 | { |
| 248 | pj_in_addr addr; |
| 249 | pj_inet_aton(cp, &addr); |
| 250 | return addr; |
| 251 | } |
| 252 | |
| 253 | /* |
| 254 | * Set the IP address of an IP socket address from string address, |
| 255 | * with resolving the host if necessary. The string address may be in a |
| 256 | * standard numbers and dots notation or may be a hostname. If hostname |
| 257 | * is specified, then the function will resolve the host into the IP |
| 258 | * address. |
| 259 | */ |
| 260 | PJ_DEF(pj_status_t) pj_sockaddr_in_set_str_addr( pj_sockaddr_in *addr, |
| 261 | const pj_str_t *str_addr) |
| 262 | { |
| 263 | PJ_CHECK_STACK(); |
| 264 | |
| 265 | pj_assert(str_addr && str_addr->slen < PJ_MAX_HOSTNAME); |
| 266 | |
| 267 | addr->sin_family = AF_INET; |
| 268 | |
| 269 | if (str_addr && str_addr->slen) { |
| 270 | addr->sin_addr = pj_inet_addr(str_addr); |
| 271 | if (addr->sin_addr.s_addr == PJ_INADDR_NONE) { |
| 272 | pj_hostent he; |
| 273 | if (pj_gethostbyname(str_addr, &he) == 0) { |
| 274 | addr->sin_addr.s_addr = *(pj_uint32_t*)he.h_addr; |
| 275 | } else { |
| 276 | addr->sin_addr.s_addr = PJ_INADDR_NONE; |
| 277 | return -1; |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | } else { |
| 282 | addr->sin_addr.s_addr = 0; |
| 283 | } |
| 284 | |
| 285 | return PJ_SUCCESS; |
| 286 | } |
| 287 | |
| 288 | /* |
| 289 | * Set the IP address and port of an IP socket address. |
| 290 | * The string address may be in a standard numbers and dots notation or |
| 291 | * may be a hostname. If hostname is specified, then the function will |
| 292 | * resolve the host into the IP address. |
| 293 | */ |
| 294 | PJ_DEF(pj_status_t) pj_sockaddr_in_init( pj_sockaddr_in *addr, |
| 295 | const pj_str_t *str_addr, |
| 296 | pj_uint16_t port) |
| 297 | { |
| 298 | pj_assert(addr && str_addr); |
| 299 | |
| 300 | addr->sin_family = PJ_AF_INET; |
| 301 | pj_sockaddr_in_set_port(addr, port); |
| 302 | return pj_sockaddr_in_set_str_addr(addr, str_addr); |
| 303 | } |
| 304 | |
| 305 | |
| 306 | /* |
| 307 | * Get hostname. |
| 308 | */ |
| 309 | PJ_DEF(const pj_str_t*) pj_gethostname(void) |
| 310 | { |
| 311 | static char buf[PJ_MAX_HOSTNAME]; |
| 312 | static pj_str_t hostname; |
| 313 | |
| 314 | PJ_CHECK_STACK(); |
| 315 | |
| 316 | if (hostname.ptr == NULL) { |
| 317 | hostname.ptr = buf; |
| 318 | down_read(&uts_sem); |
| 319 | hostname.slen = strlen(system_utsname.nodename); |
| 320 | if (hostname.slen > PJ_MAX_HOSTNAME) { |
| 321 | hostname.ptr[0] = '\0'; |
| 322 | hostname.slen = 0; |
| 323 | } else { |
| 324 | pj_memcpy(hostname.ptr, system_utsname.nodename, hostname.slen); |
| 325 | } |
| 326 | up_read(&uts_sem); |
| 327 | } |
| 328 | return &hostname; |
| 329 | } |
| 330 | |
| 331 | /* |
| 332 | * Get first IP address associated with the hostname. |
| 333 | */ |
| 334 | PJ_DEF(pj_in_addr) pj_gethostaddr(void) |
| 335 | { |
| 336 | pj_sockaddr_in addr; |
| 337 | const pj_str_t *hostname = pj_gethostname(); |
| 338 | |
| 339 | pj_sockaddr_in_set_str_addr(&addr, hostname); |
| 340 | return addr.sin_addr; |
| 341 | } |
| 342 | |
| 343 | |
| 344 | /* |
| 345 | * Create new socket/endpoint for communication and returns a descriptor. |
| 346 | */ |
| 347 | PJ_DEF(pj_status_t) pj_sock_socket(int af, int type, int proto, |
| 348 | pj_sock_t *sock_fd) |
| 349 | { |
| 350 | long result; |
| 351 | |
| 352 | PJ_CHECK_STACK(); |
| 353 | |
| 354 | /* Sanity checks. */ |
| 355 | PJ_ASSERT_RETURN(PJ_INVALID_SOCKET == -1 && sock_fd != NULL, PJ_EINVAL); |
| 356 | |
| 357 | /* Initialize returned socket */ |
| 358 | *sock_fd = PJ_INVALID_SOCKET; |
| 359 | |
| 360 | /* Create socket. */ |
| 361 | result = sys_socket(af, type, proto); |
| 362 | if (result < 0) { |
| 363 | return PJ_RETURN_OS_ERROR((-result)); |
| 364 | } |
| 365 | |
| 366 | *sock_fd = result; |
| 367 | |
| 368 | return PJ_SUCCESS; |
| 369 | } |
| 370 | |
| 371 | /* |
| 372 | * Bind socket. |
| 373 | */ |
| 374 | PJ_DEF(pj_status_t) pj_sock_bind( pj_sock_t sockfd, |
| 375 | const pj_sockaddr_t *addr, |
| 376 | int len) |
| 377 | { |
| 378 | long err; |
| 379 | mm_segment_t oldfs; |
| 380 | |
| 381 | PJ_CHECK_STACK(); |
| 382 | |
| 383 | PJ_ASSERT_RETURN(addr!=NULL && len >= sizeof(struct pj_sockaddr), |
| 384 | PJ_EINVAL); |
| 385 | |
| 386 | oldfs = get_fs(); |
| 387 | set_fs(KERNEL_DS); |
| 388 | |
| 389 | err = sys_bind(sockfd, (struct sockaddr*)addr, len); |
| 390 | |
| 391 | set_fs(oldfs); |
| 392 | |
| 393 | if (err) |
| 394 | return PJ_RETURN_OS_ERROR(-err); |
| 395 | else |
| 396 | return PJ_SUCCESS; |
| 397 | } |
| 398 | |
| 399 | |
| 400 | /* |
| 401 | * Bind socket. |
| 402 | */ |
| 403 | PJ_DEF(pj_status_t) pj_sock_bind_in( pj_sock_t sockfd, |
| 404 | pj_uint32_t addr32, |
| 405 | pj_uint16_t port) |
| 406 | { |
| 407 | pj_sockaddr_in addr; |
| 408 | |
| 409 | PJ_CHECK_STACK(); |
| 410 | |
| 411 | addr.sin_family = PJ_AF_INET; |
| 412 | addr.sin_addr.s_addr = pj_htonl(addr32); |
| 413 | addr.sin_port = pj_htons(port); |
| 414 | |
| 415 | return pj_sock_bind(sockfd, &addr, sizeof(pj_sockaddr_in)); |
| 416 | } |
| 417 | |
| 418 | /* |
| 419 | * Close socket. |
| 420 | */ |
| 421 | PJ_DEF(pj_status_t) pj_sock_close(pj_sock_t sockfd) |
| 422 | { |
| 423 | long err; |
| 424 | |
| 425 | err = sys_close(sockfd); |
| 426 | |
| 427 | if (err != 0) |
| 428 | return PJ_RETURN_OS_ERROR(-err); |
| 429 | else |
| 430 | return PJ_SUCCESS; |
| 431 | } |
| 432 | |
| 433 | /* |
| 434 | * Get remote's name. |
| 435 | */ |
| 436 | PJ_DEF(pj_status_t) pj_sock_getpeername( pj_sock_t sockfd, |
| 437 | pj_sockaddr_t *addr, |
| 438 | int *namelen) |
| 439 | { |
| 440 | mm_segment_t oldfs; |
| 441 | long err; |
| 442 | |
| 443 | PJ_CHECK_STACK(); |
| 444 | |
| 445 | oldfs = get_fs(); |
| 446 | set_fs(KERNEL_DS); |
| 447 | |
| 448 | err = sys_getpeername( sockfd, addr, namelen); |
| 449 | |
| 450 | set_fs(oldfs); |
| 451 | |
| 452 | if (err) |
| 453 | return PJ_RETURN_OS_ERROR(-err); |
| 454 | else |
| 455 | return PJ_SUCCESS; |
| 456 | } |
| 457 | |
| 458 | /* |
| 459 | * Get socket name. |
| 460 | */ |
| 461 | PJ_DEF(pj_status_t) pj_sock_getsockname( pj_sock_t sockfd, |
| 462 | pj_sockaddr_t *addr, |
| 463 | int *namelen) |
| 464 | { |
| 465 | mm_segment_t oldfs; |
| 466 | int err; |
| 467 | |
| 468 | PJ_CHECK_STACK(); |
| 469 | |
| 470 | oldfs = get_fs(); |
| 471 | set_fs(KERNEL_DS); |
| 472 | |
| 473 | err = sys_getsockname( sockfd, addr, namelen ); |
| 474 | |
| 475 | set_fs(oldfs); |
| 476 | |
| 477 | if (err) |
| 478 | return PJ_RETURN_OS_ERROR(-err); |
| 479 | else |
| 480 | return PJ_SUCCESS; |
| 481 | } |
| 482 | |
| 483 | /* |
| 484 | * Send data |
| 485 | */ |
| 486 | PJ_DEF(pj_status_t) pj_sock_send( pj_sock_t sockfd, |
| 487 | const void *buf, |
| 488 | pj_ssize_t *len, |
| 489 | unsigned flags) |
| 490 | { |
| 491 | return pj_sock_sendto(sockfd, buf, len, flags, NULL, 0); |
| 492 | } |
| 493 | |
| 494 | |
| 495 | /* |
| 496 | * Send data. |
| 497 | */ |
| 498 | PJ_DEF(pj_status_t) pj_sock_sendto( pj_sock_t sockfd, |
| 499 | const void *buff, |
| 500 | pj_ssize_t *len, |
| 501 | unsigned flags, |
| 502 | const pj_sockaddr_t *addr, |
| 503 | int addr_len) |
| 504 | { |
| 505 | long err; |
| 506 | mm_segment_t oldfs; |
| 507 | |
| 508 | PJ_CHECK_STACK(); |
| 509 | |
| 510 | oldfs = get_fs(); |
| 511 | set_fs(KERNEL_DS); |
| 512 | |
| 513 | err = *len = sys_sendto( sockfd, (void*)buff, *len, flags, |
| 514 | (void*)addr, addr_len ); |
| 515 | |
| 516 | set_fs(oldfs); |
| 517 | |
| 518 | if (err >= 0) { |
| 519 | return PJ_SUCCESS; |
| 520 | } |
| 521 | else { |
| 522 | return PJ_RETURN_OS_ERROR(-err); |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | /* |
| 527 | * Receive data. |
| 528 | */ |
| 529 | PJ_DEF(pj_status_t) pj_sock_recv( pj_sock_t sockfd, |
| 530 | void *buf, |
| 531 | pj_ssize_t *len, |
| 532 | unsigned flags) |
| 533 | { |
| 534 | return pj_sock_recvfrom(sockfd, buf, len, flags, NULL, NULL); |
| 535 | } |
| 536 | |
| 537 | /* |
| 538 | * Receive data. |
| 539 | */ |
| 540 | PJ_DEF(pj_status_t) pj_sock_recvfrom( pj_sock_t sockfd, |
| 541 | void *buff, |
| 542 | pj_ssize_t *size, |
| 543 | unsigned flags, |
| 544 | pj_sockaddr_t *from, |
| 545 | int *fromlen) |
| 546 | { |
| 547 | mm_segment_t oldfs; |
| 548 | long err; |
| 549 | |
| 550 | PJ_CHECK_STACK(); |
| 551 | |
| 552 | oldfs = get_fs(); |
| 553 | set_fs(KERNEL_DS); |
| 554 | |
| 555 | err = *size = sys_recvfrom( sockfd, buff, *size, flags, from, fromlen); |
| 556 | |
| 557 | set_fs(oldfs); |
| 558 | |
| 559 | if (err >= 0) { |
| 560 | return PJ_SUCCESS; |
| 561 | } |
| 562 | else { |
| 563 | return PJ_RETURN_OS_ERROR(-err); |
| 564 | } |
| 565 | } |
| 566 | |
| 567 | /* |
| 568 | * Get socket option. |
| 569 | */ |
| 570 | PJ_DEF(pj_status_t) pj_sock_getsockopt( pj_sock_t sockfd, |
| 571 | int level, |
| 572 | int optname, |
| 573 | void *optval, |
| 574 | int *optlen) |
| 575 | { |
| 576 | mm_segment_t oldfs; |
| 577 | long err; |
| 578 | |
| 579 | PJ_CHECK_STACK(); |
| 580 | |
| 581 | oldfs = get_fs(); |
| 582 | set_fs(KERNEL_DS); |
| 583 | |
| 584 | err = sys_getsockopt( sockfd, level, optname, optval, optlen); |
| 585 | |
| 586 | set_fs(oldfs); |
| 587 | |
| 588 | if (err) |
| 589 | return PJ_RETURN_OS_ERROR(-err); |
| 590 | else |
| 591 | return PJ_SUCCESS; |
| 592 | } |
| 593 | |
| 594 | /* |
| 595 | * Set socket option. |
| 596 | */ |
| 597 | PJ_DEF(pj_status_t) pj_sock_setsockopt( pj_sock_t sockfd, |
| 598 | int level, |
| 599 | int optname, |
| 600 | const void *optval, |
| 601 | int optlen) |
| 602 | { |
| 603 | long err; |
| 604 | mm_segment_t oldfs; |
| 605 | |
| 606 | PJ_CHECK_STACK(); |
| 607 | |
| 608 | |
| 609 | oldfs = get_fs(); |
| 610 | set_fs(KERNEL_DS); |
| 611 | |
| 612 | err = sys_setsockopt( sockfd, level, optname, (void*)optval, optlen); |
| 613 | |
| 614 | set_fs(oldfs); |
| 615 | |
| 616 | if (err) |
| 617 | return PJ_RETURN_OS_ERROR(-err); |
| 618 | else |
| 619 | return PJ_SUCCESS; |
| 620 | } |
| 621 | |
| 622 | /* |
| 623 | * Shutdown socket. |
| 624 | */ |
| 625 | #if PJ_HAS_TCP |
| 626 | PJ_DEF(pj_status_t) pj_sock_shutdown( pj_sock_t sockfd, |
| 627 | int how) |
| 628 | { |
| 629 | long err; |
| 630 | |
| 631 | PJ_CHECK_STACK(); |
| 632 | |
| 633 | err = sys_shutdown(sockfd, how); |
| 634 | |
| 635 | if (err) |
| 636 | return PJ_RETURN_OS_ERROR(-err); |
| 637 | else |
| 638 | return PJ_SUCCESS; |
| 639 | } |
| 640 | |
| 641 | /* |
| 642 | * Start listening to incoming connections. |
| 643 | */ |
| 644 | PJ_DEF(pj_status_t) pj_sock_listen( pj_sock_t sockfd, |
| 645 | int backlog) |
| 646 | { |
| 647 | long err; |
| 648 | |
| 649 | PJ_CHECK_STACK(); |
| 650 | |
| 651 | err = sys_listen( sockfd, backlog ); |
| 652 | |
| 653 | if (err) |
| 654 | return PJ_RETURN_OS_ERROR(-err); |
| 655 | else |
| 656 | return PJ_SUCCESS; |
| 657 | } |
| 658 | |
| 659 | /* |
| 660 | * Connect socket. |
| 661 | */ |
| 662 | PJ_DEF(pj_status_t) pj_sock_connect( pj_sock_t sockfd, |
| 663 | const pj_sockaddr_t *addr, |
| 664 | int namelen) |
| 665 | { |
| 666 | long err; |
| 667 | mm_segment_t oldfs; |
| 668 | |
| 669 | PJ_CHECK_STACK(); |
| 670 | |
| 671 | oldfs = get_fs(); |
| 672 | set_fs(KERNEL_DS); |
| 673 | |
| 674 | err = sys_connect( sockfd, (void*)addr, namelen ); |
| 675 | |
| 676 | set_fs(oldfs); |
| 677 | |
| 678 | if (err) |
| 679 | return PJ_RETURN_OS_ERROR(-err); |
| 680 | else |
| 681 | return PJ_SUCCESS; |
| 682 | } |
| 683 | |
| 684 | /* |
| 685 | * Accept incoming connections |
| 686 | */ |
| 687 | PJ_DEF(pj_status_t) pj_sock_accept( pj_sock_t sockfd, |
| 688 | pj_sock_t *newsockfd, |
| 689 | pj_sockaddr_t *addr, |
| 690 | int *addrlen) |
| 691 | { |
| 692 | long err; |
| 693 | |
| 694 | PJ_CHECK_STACK(); |
| 695 | |
| 696 | PJ_ASSERT_RETURN(newsockfd != NULL, PJ_EINVAL); |
| 697 | |
| 698 | err = sys_accept( sockfd, addr, addrlen); |
| 699 | |
| 700 | if (err < 0) { |
| 701 | *newsockfd = PJ_INVALID_SOCKET; |
| 702 | return PJ_RETURN_OS_ERROR(-err); |
| 703 | } |
| 704 | else { |
| 705 | *newsockfd = err; |
| 706 | return PJ_SUCCESS; |
| 707 | } |
| 708 | } |
| 709 | #endif /* PJ_HAS_TCP */ |
| 710 | |
| 711 | |
| 712 | |
| 713 | /* |
| 714 | * Permission to steal inet_ntoa() and inet_aton() as long as this notice below |
| 715 | * is included: |
| 716 | */ |
| 717 | /* |
| 718 | * Copyright (c) 1983, 1993 |
| 719 | * The Regents of the University of California. All rights reserved. |
| 720 | * |
| 721 | * Redistribution and use in source and binary forms, with or without |
| 722 | * modification, are permitted provided that the following conditions |
| 723 | * are met: |
| 724 | * 1. Redistributions of source code must retain the above copyright |
| 725 | * notice, this list of conditions and the following disclaimer. |
| 726 | * 2. Redistributions in binary form must reproduce the above copyright |
| 727 | * notice, this list of conditions and the following disclaimer in the |
| 728 | * documentation and/or other materials provided with the distribution. |
| 729 | * 3. All advertising materials mentioning features or use of this software |
| 730 | * must display the following acknowledgement: |
| 731 | * This product includes software developed by the University of |
| 732 | * California, Berkeley and its contributors. |
| 733 | * 4. Neither the name of the University nor the names of its contributors |
| 734 | * may be used to endorse or promote products derived from this software |
| 735 | * without specific prior written permission. |
| 736 | * |
| 737 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 738 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 739 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 740 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 741 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 742 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 743 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 744 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 745 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 746 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 747 | * SUCH DAMAGE. |
| 748 | */ |
| 749 | |