| 1 | /* |
| 2 | * Copyright (C) 2011 EfficiOS Inc. |
| 3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0-only |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #include <sys/socket.h> |
| 10 | #define _LGPL_SOURCE |
| 11 | #include "sessiond-comm.hpp" |
| 12 | |
| 13 | #include <common/common.hpp> |
| 14 | #include <common/compat/errno.hpp> |
| 15 | |
| 16 | #include <inttypes.h> |
| 17 | #include <limits.h> |
| 18 | #include <stdio.h> |
| 19 | #include <stdlib.h> |
| 20 | #include <string.h> |
| 21 | #include <sys/stat.h> |
| 22 | #include <sys/types.h> |
| 23 | #include <unistd.h> |
| 24 | |
| 25 | /* For Unix socket */ |
| 26 | #include <common/unix.hpp> |
| 27 | /* For Inet socket */ |
| 28 | #include "inet.hpp" |
| 29 | /* For Inet6 socket */ |
| 30 | #include "inet6.hpp" |
| 31 | |
| 32 | #define NETWORK_TIMEOUT_ENV "LTTNG_NETWORK_SOCKET_TIMEOUT" |
| 33 | |
| 34 | static struct lttcomm_net_family net_families[] = { |
| 35 | { LTTCOMM_INET, lttcomm_create_inet_sock }, |
| 36 | { LTTCOMM_INET6, lttcomm_create_inet6_sock }, |
| 37 | }; |
| 38 | |
| 39 | /* |
| 40 | * Human readable error message. |
| 41 | */ |
| 42 | static const char *lttcomm_return_code_str(lttcomm_return_code code) |
| 43 | { |
| 44 | switch (code) { |
| 45 | case LTTCOMM_CONSUMERD_SUCCESS: |
| 46 | return "consumerd success"; |
| 47 | case LTTCOMM_CONSUMERD_COMMAND_SOCK_READY: |
| 48 | return "consumerd command socket ready"; |
| 49 | case LTTCOMM_CONSUMERD_SUCCESS_RECV_FD: |
| 50 | return "consumerd success on receiving fds"; |
| 51 | case LTTCOMM_CONSUMERD_ERROR_RECV_FD: |
| 52 | return "consumerd error on receiving fds"; |
| 53 | case LTTCOMM_CONSUMERD_ERROR_RECV_CMD: |
| 54 | return "consumerd error on receiving command"; |
| 55 | case LTTCOMM_CONSUMERD_POLL_ERROR: |
| 56 | return "consumerd error in polling thread"; |
| 57 | case LTTCOMM_CONSUMERD_POLL_NVAL: |
| 58 | return "consumerd polling on closed fd"; |
| 59 | case LTTCOMM_CONSUMERD_POLL_HUP: |
| 60 | return "consumerd all fd hung up"; |
| 61 | case LTTCOMM_CONSUMERD_EXIT_SUCCESS: |
| 62 | return "consumerd exiting normally"; |
| 63 | case LTTCOMM_CONSUMERD_EXIT_FAILURE: |
| 64 | return "consumerd exiting on error"; |
| 65 | case LTTCOMM_CONSUMERD_OUTFD_ERROR: |
| 66 | return "consumerd error opening the tracefile"; |
| 67 | case LTTCOMM_CONSUMERD_SPLICE_EBADF: |
| 68 | return "consumerd splice EBADF"; |
| 69 | case LTTCOMM_CONSUMERD_SPLICE_EINVAL: |
| 70 | return "consumerd splice EINVAL"; |
| 71 | case LTTCOMM_CONSUMERD_SPLICE_ENOMEM: |
| 72 | return "consumerd splice ENOMEM"; |
| 73 | case LTTCOMM_CONSUMERD_SPLICE_ESPIPE: |
| 74 | return "consumerd splice ESPIPE"; |
| 75 | case LTTCOMM_CONSUMERD_ENOMEM: |
| 76 | return "consumerd is out of memory"; |
| 77 | case LTTCOMM_CONSUMERD_ERROR_METADATA: |
| 78 | return "consumerd error with metadata"; |
| 79 | case LTTCOMM_CONSUMERD_FATAL: |
| 80 | return "consumerd fatal error"; |
| 81 | case LTTCOMM_CONSUMERD_RELAYD_FAIL: |
| 82 | return "consumerd error on remote relayd"; |
| 83 | case LTTCOMM_CONSUMERD_CHANNEL_FAIL: |
| 84 | return "consumerd channel creation fail"; |
| 85 | case LTTCOMM_CONSUMERD_CHAN_NOT_FOUND: |
| 86 | return "consumerd channel not found"; |
| 87 | case LTTCOMM_CONSUMERD_ALREADY_SET: |
| 88 | return "consumerd resource already set"; |
| 89 | case LTTCOMM_CONSUMERD_ROTATION_FAIL: |
| 90 | return "consumerd rotation failed"; |
| 91 | case LTTCOMM_CONSUMERD_SNAPSHOT_FAILED: |
| 92 | return "consumerd snapshot has failed"; |
| 93 | case LTTCOMM_CONSUMERD_CREATE_TRACE_CHUNK_FAILED: |
| 94 | return "consumerd trace chunk creation failed"; |
| 95 | case LTTCOMM_CONSUMERD_CLOSE_TRACE_CHUNK_FAILED: |
| 96 | return "consumerd trace chunk closing failed"; |
| 97 | case LTTCOMM_CONSUMERD_INVALID_PARAMETERS: |
| 98 | return "consumerd invalid parameters"; |
| 99 | case LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_LOCAL: |
| 100 | return "consumerd trace chunk exists on consumer daemon"; |
| 101 | case LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_REMOTE: |
| 102 | return "consumedd trace chunk exists on relay daemon"; |
| 103 | case LTTCOMM_CONSUMERD_UNKNOWN_TRACE_CHUNK: |
| 104 | return "consumerd unknown trace chunk"; |
| 105 | case LTTCOMM_CONSUMERD_RELAYD_CLEAR_DISALLOWED: |
| 106 | return "consumed relayd does not accept clear command"; |
| 107 | case LTTCOMM_CONSUMERD_UNKNOWN_ERROR: |
| 108 | return "consumerd unknown error"; |
| 109 | case LTTCOMM_NR: |
| 110 | abort(); |
| 111 | } |
| 112 | |
| 113 | abort(); |
| 114 | }; |
| 115 | |
| 116 | static unsigned long network_timeout; |
| 117 | |
| 118 | /* |
| 119 | * Return ptr to string representing a human readable error code from the |
| 120 | * lttcomm_return_code enum. |
| 121 | * |
| 122 | * These code MUST be negative in other to treat that as an error value. |
| 123 | */ |
| 124 | const char *lttcomm_get_readable_code(enum lttcomm_return_code code) |
| 125 | { |
| 126 | code = (lttcomm_return_code) -code; |
| 127 | |
| 128 | if (code != LTTCOMM_CONSUMERD_SUCCESS && |
| 129 | (code < LTTCOMM_CONSUMERD_COMMAND_SOCK_READY || code >= LTTCOMM_NR)) { |
| 130 | code = LTTCOMM_CONSUMERD_UNKNOWN_ERROR; |
| 131 | } |
| 132 | |
| 133 | return lttcomm_return_code_str(code); |
| 134 | } |
| 135 | |
| 136 | /* |
| 137 | * Create socket from an already allocated lttcomm socket structure and init |
| 138 | * sockaddr in the lttcomm sock. |
| 139 | */ |
| 140 | int lttcomm_create_sock(struct lttcomm_sock *sock) |
| 141 | { |
| 142 | int ret, _sock_type, _sock_proto, domain; |
| 143 | |
| 144 | LTTNG_ASSERT(sock); |
| 145 | |
| 146 | domain = sock->sockaddr.type; |
| 147 | if (domain != LTTCOMM_INET && domain != LTTCOMM_INET6) { |
| 148 | ERR("Create socket of unknown domain %d", domain); |
| 149 | ret = -1; |
| 150 | goto error; |
| 151 | } |
| 152 | |
| 153 | switch (sock->proto) { |
| 154 | case LTTCOMM_SOCK_UDP: |
| 155 | _sock_type = SOCK_DGRAM; |
| 156 | _sock_proto = IPPROTO_UDP; |
| 157 | break; |
| 158 | case LTTCOMM_SOCK_TCP: |
| 159 | _sock_type = SOCK_STREAM; |
| 160 | _sock_proto = IPPROTO_TCP; |
| 161 | break; |
| 162 | default: |
| 163 | ret = -1; |
| 164 | goto error; |
| 165 | } |
| 166 | |
| 167 | ret = net_families[domain].create(sock, _sock_type, _sock_proto); |
| 168 | if (ret < 0) { |
| 169 | goto error; |
| 170 | } |
| 171 | |
| 172 | error: |
| 173 | return ret; |
| 174 | } |
| 175 | |
| 176 | /* |
| 177 | * Return allocated lttcomm socket structure. |
| 178 | */ |
| 179 | struct lttcomm_sock *lttcomm_alloc_sock(enum lttcomm_sock_proto proto) |
| 180 | { |
| 181 | struct lttcomm_sock *sock = zmalloc<lttcomm_sock>(); |
| 182 | |
| 183 | if (sock == nullptr) { |
| 184 | PERROR("zmalloc create sock"); |
| 185 | goto end; |
| 186 | } |
| 187 | |
| 188 | sock->proto = proto; |
| 189 | sock->fd = -1; |
| 190 | |
| 191 | end: |
| 192 | return sock; |
| 193 | } |
| 194 | |
| 195 | /* |
| 196 | * Return an allocated lttcomm socket structure and copy src content into |
| 197 | * the newly created socket. |
| 198 | * |
| 199 | * This is mostly useful when lttcomm_sock are passed between process where the |
| 200 | * fd and ops have to be changed within the correct address space. |
| 201 | */ |
| 202 | struct lttcomm_sock *lttcomm_alloc_copy_sock(struct lttcomm_sock *src) |
| 203 | { |
| 204 | struct lttcomm_sock *sock; |
| 205 | |
| 206 | /* Safety net */ |
| 207 | LTTNG_ASSERT(src); |
| 208 | |
| 209 | sock = lttcomm_alloc_sock(src->proto); |
| 210 | if (sock == nullptr) { |
| 211 | goto alloc_error; |
| 212 | } |
| 213 | |
| 214 | lttcomm_copy_sock(sock, src); |
| 215 | |
| 216 | alloc_error: |
| 217 | return sock; |
| 218 | } |
| 219 | |
| 220 | /* |
| 221 | * Create and copy socket from an allocated lttcomm socket structure. |
| 222 | * |
| 223 | * This is mostly useful when lttcomm_sock are passed between process where the |
| 224 | * fd and ops have to be changed within the correct address space. |
| 225 | */ |
| 226 | void lttcomm_copy_sock(struct lttcomm_sock *dst, struct lttcomm_sock *src) |
| 227 | { |
| 228 | /* Safety net */ |
| 229 | LTTNG_ASSERT(dst); |
| 230 | LTTNG_ASSERT(src); |
| 231 | |
| 232 | dst->proto = src->proto; |
| 233 | dst->fd = src->fd; |
| 234 | dst->ops = src->ops; |
| 235 | /* Copy sockaddr information from original socket */ |
| 236 | memcpy(&dst->sockaddr, &src->sockaddr, sizeof(dst->sockaddr)); |
| 237 | } |
| 238 | |
| 239 | /* |
| 240 | * Init IPv4 sockaddr structure. |
| 241 | */ |
| 242 | int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr *sockaddr, const char *ip, unsigned int port) |
| 243 | { |
| 244 | int ret; |
| 245 | |
| 246 | LTTNG_ASSERT(sockaddr); |
| 247 | LTTNG_ASSERT(ip); |
| 248 | LTTNG_ASSERT(port > 0 && port <= 65535); |
| 249 | |
| 250 | memset(sockaddr, 0, sizeof(struct lttcomm_sockaddr)); |
| 251 | |
| 252 | sockaddr->type = LTTCOMM_INET; |
| 253 | sockaddr->addr.sin.sin_family = AF_INET; |
| 254 | sockaddr->addr.sin.sin_port = htons(port); |
| 255 | ret = inet_pton(sockaddr->addr.sin.sin_family, ip, &sockaddr->addr.sin.sin_addr); |
| 256 | if (ret < 1) { |
| 257 | ret = -1; |
| 258 | ERR("%s with port %d: unrecognized IPv4 address", ip, port); |
| 259 | goto error; |
| 260 | } |
| 261 | memset(sockaddr->addr.sin.sin_zero, 0, sizeof(sockaddr->addr.sin.sin_zero)); |
| 262 | |
| 263 | error: |
| 264 | return ret; |
| 265 | } |
| 266 | |
| 267 | /* |
| 268 | * Init IPv6 sockaddr structure. |
| 269 | */ |
| 270 | int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr *sockaddr, |
| 271 | const char *ip, |
| 272 | unsigned int port) |
| 273 | { |
| 274 | int ret; |
| 275 | |
| 276 | LTTNG_ASSERT(sockaddr); |
| 277 | LTTNG_ASSERT(ip); |
| 278 | LTTNG_ASSERT(port > 0 && port <= 65535); |
| 279 | |
| 280 | memset(sockaddr, 0, sizeof(struct lttcomm_sockaddr)); |
| 281 | |
| 282 | sockaddr->type = LTTCOMM_INET6; |
| 283 | sockaddr->addr.sin6.sin6_family = AF_INET6; |
| 284 | sockaddr->addr.sin6.sin6_port = htons(port); |
| 285 | ret = inet_pton(sockaddr->addr.sin6.sin6_family, ip, &sockaddr->addr.sin6.sin6_addr); |
| 286 | if (ret < 1) { |
| 287 | ret = -1; |
| 288 | goto error; |
| 289 | } |
| 290 | |
| 291 | error: |
| 292 | return ret; |
| 293 | } |
| 294 | |
| 295 | /* |
| 296 | * Return allocated lttcomm socket structure from lttng URI. |
| 297 | */ |
| 298 | struct lttcomm_sock *lttcomm_alloc_sock_from_uri(struct lttng_uri *uri) |
| 299 | { |
| 300 | int ret; |
| 301 | int _sock_proto; |
| 302 | struct lttcomm_sock *sock = nullptr; |
| 303 | |
| 304 | /* Safety net */ |
| 305 | LTTNG_ASSERT(uri); |
| 306 | |
| 307 | /* Check URI protocol */ |
| 308 | if (uri->proto == LTTNG_TCP) { |
| 309 | _sock_proto = LTTCOMM_SOCK_TCP; |
| 310 | } else { |
| 311 | ERR("Relayd invalid URI proto: %d", uri->proto); |
| 312 | goto alloc_error; |
| 313 | } |
| 314 | |
| 315 | sock = lttcomm_alloc_sock((lttcomm_sock_proto) _sock_proto); |
| 316 | if (sock == nullptr) { |
| 317 | goto alloc_error; |
| 318 | } |
| 319 | |
| 320 | /* Check destination type */ |
| 321 | if (uri->dtype == LTTNG_DST_IPV4) { |
| 322 | ret = lttcomm_init_inet_sockaddr(&sock->sockaddr, uri->dst.ipv4, uri->port); |
| 323 | if (ret < 0) { |
| 324 | goto error; |
| 325 | } |
| 326 | } else if (uri->dtype == LTTNG_DST_IPV6) { |
| 327 | ret = lttcomm_init_inet6_sockaddr(&sock->sockaddr, uri->dst.ipv6, uri->port); |
| 328 | if (ret < 0) { |
| 329 | goto error; |
| 330 | } |
| 331 | } else { |
| 332 | /* Command URI is invalid */ |
| 333 | ERR("Relayd invalid URI dst type: %d", uri->dtype); |
| 334 | goto error; |
| 335 | } |
| 336 | |
| 337 | return sock; |
| 338 | |
| 339 | error: |
| 340 | lttcomm_destroy_sock(sock); |
| 341 | alloc_error: |
| 342 | return nullptr; |
| 343 | } |
| 344 | |
| 345 | /* |
| 346 | * Destroy and free lttcomm socket. |
| 347 | */ |
| 348 | void lttcomm_destroy_sock(struct lttcomm_sock *sock) |
| 349 | { |
| 350 | free(sock); |
| 351 | } |
| 352 | |
| 353 | /* |
| 354 | * Allocate and return a relayd socket object using a given URI to initialize |
| 355 | * it and the major/minor version of the supported protocol. |
| 356 | * |
| 357 | * On error, NULL is returned. |
| 358 | */ |
| 359 | struct lttcomm_relayd_sock * |
| 360 | lttcomm_alloc_relayd_sock(struct lttng_uri *uri, uint32_t major, uint32_t minor) |
| 361 | { |
| 362 | int ret; |
| 363 | struct lttcomm_sock *tmp_sock = nullptr; |
| 364 | struct lttcomm_relayd_sock *rsock = zmalloc<lttcomm_relayd_sock>(); |
| 365 | |
| 366 | LTTNG_ASSERT(uri); |
| 367 | |
| 368 | if (!rsock) { |
| 369 | PERROR("zmalloc relayd sock"); |
| 370 | goto error; |
| 371 | } |
| 372 | |
| 373 | /* Allocate socket object from URI */ |
| 374 | tmp_sock = lttcomm_alloc_sock_from_uri(uri); |
| 375 | if (tmp_sock == nullptr) { |
| 376 | goto error_free; |
| 377 | } |
| 378 | |
| 379 | /* |
| 380 | * Create socket object which basically sets the ops according to the |
| 381 | * socket protocol. |
| 382 | */ |
| 383 | lttcomm_copy_sock(&rsock->sock, tmp_sock); |
| 384 | /* Temporary socket pointer not needed anymore. */ |
| 385 | lttcomm_destroy_sock(tmp_sock); |
| 386 | ret = lttcomm_create_sock(&rsock->sock); |
| 387 | if (ret < 0) { |
| 388 | goto error_free; |
| 389 | } |
| 390 | |
| 391 | rsock->major = major; |
| 392 | rsock->minor = minor; |
| 393 | |
| 394 | return rsock; |
| 395 | |
| 396 | error_free: |
| 397 | free(rsock); |
| 398 | error: |
| 399 | return nullptr; |
| 400 | } |
| 401 | |
| 402 | /* |
| 403 | * Set socket receiving timeout. |
| 404 | */ |
| 405 | int lttcomm_setsockopt_rcv_timeout(int sock, unsigned int msec) |
| 406 | { |
| 407 | int ret; |
| 408 | struct timeval tv; |
| 409 | |
| 410 | tv.tv_sec = msec / 1000; |
| 411 | tv.tv_usec = (msec % 1000) * 1000; |
| 412 | |
| 413 | ret = setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); |
| 414 | if (ret < 0) { |
| 415 | PERROR("setsockopt SO_RCVTIMEO"); |
| 416 | } |
| 417 | |
| 418 | return ret; |
| 419 | } |
| 420 | |
| 421 | /* |
| 422 | * Set socket sending timeout. |
| 423 | */ |
| 424 | int lttcomm_setsockopt_snd_timeout(int sock, unsigned int msec) |
| 425 | { |
| 426 | int ret; |
| 427 | struct timeval tv; |
| 428 | |
| 429 | tv.tv_sec = msec / 1000; |
| 430 | tv.tv_usec = (msec % 1000) * 1000; |
| 431 | |
| 432 | ret = setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); |
| 433 | if (ret < 0) { |
| 434 | PERROR("setsockopt SO_SNDTIMEO"); |
| 435 | } |
| 436 | |
| 437 | return ret; |
| 438 | } |
| 439 | |
| 440 | int lttcomm_sock_get_port(const struct lttcomm_sock *sock, uint16_t *port) |
| 441 | { |
| 442 | LTTNG_ASSERT(sock); |
| 443 | LTTNG_ASSERT(port); |
| 444 | LTTNG_ASSERT(sock->sockaddr.type == LTTCOMM_INET || sock->sockaddr.type == LTTCOMM_INET6); |
| 445 | LTTNG_ASSERT(sock->proto == LTTCOMM_SOCK_TCP || sock->proto == LTTCOMM_SOCK_UDP); |
| 446 | |
| 447 | switch (sock->sockaddr.type) { |
| 448 | case LTTCOMM_INET: |
| 449 | *port = ntohs(sock->sockaddr.addr.sin.sin_port); |
| 450 | break; |
| 451 | case LTTCOMM_INET6: |
| 452 | *port = ntohs(sock->sockaddr.addr.sin6.sin6_port); |
| 453 | break; |
| 454 | default: |
| 455 | abort(); |
| 456 | } |
| 457 | |
| 458 | return 0; |
| 459 | } |
| 460 | |
| 461 | int lttcomm_sock_set_port(struct lttcomm_sock *sock, uint16_t port) |
| 462 | { |
| 463 | LTTNG_ASSERT(sock); |
| 464 | LTTNG_ASSERT(sock->sockaddr.type == LTTCOMM_INET || sock->sockaddr.type == LTTCOMM_INET6); |
| 465 | LTTNG_ASSERT(sock->proto == LTTCOMM_SOCK_TCP || sock->proto == LTTCOMM_SOCK_UDP); |
| 466 | |
| 467 | switch (sock->sockaddr.type) { |
| 468 | case LTTCOMM_INET: |
| 469 | sock->sockaddr.addr.sin.sin_port = htons(port); |
| 470 | break; |
| 471 | case LTTCOMM_INET6: |
| 472 | sock->sockaddr.addr.sin6.sin6_port = htons(port); |
| 473 | break; |
| 474 | default: |
| 475 | abort(); |
| 476 | } |
| 477 | |
| 478 | return 0; |
| 479 | } |
| 480 | |
| 481 | void lttcomm_init() |
| 482 | { |
| 483 | const char *env; |
| 484 | |
| 485 | env = getenv(NETWORK_TIMEOUT_ENV); |
| 486 | if (env) { |
| 487 | long timeout; |
| 488 | |
| 489 | errno = 0; |
| 490 | timeout = strtol(env, nullptr, 0); |
| 491 | if (errno != 0 || timeout < -1L) { |
| 492 | PERROR("Network timeout"); |
| 493 | } else { |
| 494 | if (timeout > 0) { |
| 495 | network_timeout = timeout; |
| 496 | } |
| 497 | } |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | unsigned long lttcomm_get_network_timeout() |
| 502 | { |
| 503 | return network_timeout; |
| 504 | } |
| 505 | |
| 506 | /* |
| 507 | * Only valid for an ipv4 and ipv6 bound socket that is already connected to its |
| 508 | * peer. |
| 509 | */ |
| 510 | int lttcomm_populate_sock_from_open_socket(struct lttcomm_sock *sock, |
| 511 | int fd, |
| 512 | enum lttcomm_sock_proto protocol) |
| 513 | { |
| 514 | int ret = 0; |
| 515 | socklen_t storage_len; |
| 516 | struct sockaddr_storage storage = {}; |
| 517 | |
| 518 | assert(sock); |
| 519 | assert(fd >= 0); |
| 520 | |
| 521 | sock->proto = protocol; |
| 522 | |
| 523 | storage_len = sizeof(storage); |
| 524 | ret = getpeername(fd, (struct sockaddr *) &storage, &storage_len); |
| 525 | if (ret) { |
| 526 | ERR("Failed to get peer info for socket %d (errno: %d)", fd, errno); |
| 527 | ret = -1; |
| 528 | goto end; |
| 529 | } |
| 530 | |
| 531 | if (storage_len > sizeof(storage)) { |
| 532 | ERR("Failed to get peer info for socket %d: storage size is too small", fd); |
| 533 | ret = -1; |
| 534 | goto end; |
| 535 | } |
| 536 | |
| 537 | switch (storage.ss_family) { |
| 538 | case AF_INET: |
| 539 | sock->sockaddr.type = LTTCOMM_INET; |
| 540 | memcpy(&sock->sockaddr.addr, &storage, sizeof(struct sockaddr_in)); |
| 541 | break; |
| 542 | case AF_INET6: |
| 543 | sock->sockaddr.type = LTTCOMM_INET6; |
| 544 | memcpy(&sock->sockaddr.addr, &storage, sizeof(struct sockaddr_in6)); |
| 545 | break; |
| 546 | default: |
| 547 | abort(); |
| 548 | break; |
| 549 | } |
| 550 | |
| 551 | /* Create a valid socket object with a temporary fd. */ |
| 552 | ret = lttcomm_create_sock(sock); |
| 553 | if (ret < 0) { |
| 554 | ERR("Failed to create temporary socket object"); |
| 555 | ret = -1; |
| 556 | goto end; |
| 557 | } |
| 558 | |
| 559 | /* Substitute the fd. */ |
| 560 | if (sock->ops->close(sock)) { |
| 561 | ret = -1; |
| 562 | goto end; |
| 563 | } |
| 564 | sock->fd = fd; |
| 565 | |
| 566 | end: |
| 567 | return ret; |
| 568 | } |