Commit | Line | Data |
---|---|---|
826d496d | 1 | /* |
21cf9b6b | 2 | * Copyright (C) 2011 EfficiOS Inc. |
ab5be9fa MJ |
3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0-only | |
fac6795d | 6 | * |
fac6795d DG |
7 | */ |
8 | ||
4222116f | 9 | #include <sys/socket.h> |
6c1c0768 | 10 | #define _LGPL_SOURCE |
fac6795d DG |
11 | #include <limits.h> |
12 | #include <stdio.h> | |
13 | #include <stdlib.h> | |
14 | #include <string.h> | |
fac6795d DG |
15 | #include <sys/stat.h> |
16 | #include <sys/types.h> | |
fac6795d | 17 | #include <unistd.h> |
2288467f | 18 | #include <inttypes.h> |
fac6795d | 19 | |
90e535ef | 20 | #include <common/common.h> |
edf4b93e | 21 | #include <common/compat/errno.h> |
990570ed | 22 | |
10a8a223 | 23 | #include "sessiond-comm.h" |
fac6795d | 24 | |
6364a07a | 25 | /* For Unix socket */ |
2038dd6c | 26 | #include <common/unix.h> |
6364a07a DG |
27 | /* For Inet socket */ |
28 | #include "inet.h" | |
29 | /* For Inet6 socket */ | |
30 | #include "inet6.h" | |
31 | ||
554831e7 MD |
32 | #define NETWORK_TIMEOUT_ENV "LTTNG_NETWORK_SOCKET_TIMEOUT" |
33 | ||
32dd26fb | 34 | static struct lttcomm_net_family net_families[] = { |
6364a07a DG |
35 | { LTTCOMM_INET, lttcomm_create_inet_sock }, |
36 | { LTTCOMM_INET6, lttcomm_create_inet6_sock }, | |
37 | }; | |
38 | ||
fac6795d DG |
39 | /* |
40 | * Human readable error message. | |
41 | */ | |
64efa44e SM |
42 | static |
43 | const char *lttcomm_return_code_str(lttcomm_return_code code) { | |
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(); | |
fac6795d DG |
114 | }; |
115 | ||
554831e7 MD |
116 | static unsigned long network_timeout; |
117 | ||
fac6795d | 118 | /* |
917216f6 DG |
119 | * Return ptr to string representing a human readable error code from the |
120 | * lttcomm_return_code enum. | |
fac6795d | 121 | * |
917216f6 | 122 | * These code MUST be negative in other to treat that as an error value. |
fac6795d DG |
123 | */ |
124 | const char *lttcomm_get_readable_code(enum lttcomm_return_code code) | |
125 | { | |
64efa44e | 126 | code = (lttcomm_return_code) -code; |
fac6795d | 127 | |
64efa44e SM |
128 | if (code != LTTCOMM_CONSUMERD_SUCCESS && |
129 | !(code >= LTTCOMM_CONSUMERD_COMMAND_SOCK_READY && code < LTTCOMM_NR)) { | |
130 | code = LTTCOMM_CONSUMERD_UNKNOWN_ERROR; | |
fac6795d DG |
131 | } |
132 | ||
64efa44e | 133 | return lttcomm_return_code_str(code); |
fac6795d | 134 | } |
6364a07a DG |
135 | |
136 | /* | |
de5e9086 DG |
137 | * Create socket from an already allocated lttcomm socket structure and init |
138 | * sockaddr in the lttcomm sock. | |
6364a07a | 139 | */ |
de5e9086 | 140 | int lttcomm_create_sock(struct lttcomm_sock *sock) |
6364a07a | 141 | { |
de5e9086 | 142 | int ret, _sock_type, _sock_proto, domain; |
6364a07a | 143 | |
a0377dfe | 144 | LTTNG_ASSERT(sock); |
de5e9086 DG |
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; | |
6364a07a DG |
151 | } |
152 | ||
de5e9086 DG |
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 | } | |
6364a07a | 166 | |
de5e9086 DG |
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; | |
6364a07a DG |
174 | } |
175 | ||
176 | /* | |
de5e9086 | 177 | * Return allocated lttcomm socket structure. |
6364a07a | 178 | */ |
de5e9086 | 179 | struct lttcomm_sock *lttcomm_alloc_sock(enum lttcomm_sock_proto proto) |
6364a07a | 180 | { |
de5e9086 | 181 | struct lttcomm_sock *sock; |
6364a07a | 182 | |
64efa44e | 183 | sock = (lttcomm_sock *) zmalloc(sizeof(lttcomm_sock)); |
de5e9086 DG |
184 | if (sock == NULL) { |
185 | PERROR("zmalloc create sock"); | |
186 | goto end; | |
6364a07a DG |
187 | } |
188 | ||
189 | sock->proto = proto; | |
de5e9086 | 190 | sock->fd = -1; |
6364a07a | 191 | |
de5e9086 DG |
192 | end: |
193 | return sock; | |
6364a07a DG |
194 | } |
195 | ||
196 | /* | |
de5e9086 DG |
197 | * Return an allocated lttcomm socket structure and copy src content into |
198 | * the newly created socket. | |
199 | * | |
200 | * This is mostly useful when lttcomm_sock are passed between process where the | |
201 | * fd and ops have to be changed within the correct address space. | |
6364a07a | 202 | */ |
de5e9086 | 203 | struct lttcomm_sock *lttcomm_alloc_copy_sock(struct lttcomm_sock *src) |
6364a07a | 204 | { |
6364a07a DG |
205 | struct lttcomm_sock *sock; |
206 | ||
de5e9086 | 207 | /* Safety net */ |
a0377dfe | 208 | LTTNG_ASSERT(src); |
de5e9086 DG |
209 | |
210 | sock = lttcomm_alloc_sock(src->proto); | |
6364a07a DG |
211 | if (sock == NULL) { |
212 | goto alloc_error; | |
213 | } | |
214 | ||
de5e9086 | 215 | lttcomm_copy_sock(sock, src); |
6364a07a | 216 | |
de5e9086 | 217 | alloc_error: |
6364a07a | 218 | return sock; |
de5e9086 | 219 | } |
6364a07a | 220 | |
de5e9086 DG |
221 | /* |
222 | * Create and copy socket from an allocated lttcomm socket structure. | |
223 | * | |
224 | * This is mostly useful when lttcomm_sock are passed between process where the | |
225 | * fd and ops have to be changed within the correct address space. | |
226 | */ | |
227 | void lttcomm_copy_sock(struct lttcomm_sock *dst, struct lttcomm_sock *src) | |
228 | { | |
229 | /* Safety net */ | |
a0377dfe FD |
230 | LTTNG_ASSERT(dst); |
231 | LTTNG_ASSERT(src); | |
de5e9086 DG |
232 | |
233 | dst->proto = src->proto; | |
234 | dst->fd = src->fd; | |
235 | dst->ops = src->ops; | |
236 | /* Copy sockaddr information from original socket */ | |
237 | memcpy(&dst->sockaddr, &src->sockaddr, sizeof(dst->sockaddr)); | |
6364a07a DG |
238 | } |
239 | ||
240 | /* | |
241 | * Init IPv4 sockaddr structure. | |
242 | */ | |
243 | int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr *sockaddr, | |
244 | const char *ip, unsigned int port) | |
245 | { | |
246 | int ret; | |
247 | ||
a0377dfe FD |
248 | LTTNG_ASSERT(sockaddr); |
249 | LTTNG_ASSERT(ip); | |
250 | LTTNG_ASSERT(port > 0 && port <= 65535); | |
6364a07a DG |
251 | |
252 | memset(sockaddr, 0, sizeof(struct lttcomm_sockaddr)); | |
253 | ||
254 | sockaddr->type = LTTCOMM_INET; | |
255 | sockaddr->addr.sin.sin_family = AF_INET; | |
256 | sockaddr->addr.sin.sin_port = htons(port); | |
257 | ret = inet_pton(sockaddr->addr.sin.sin_family, ip, | |
258 | &sockaddr->addr.sin.sin_addr); | |
259 | if (ret < 1) { | |
260 | ret = -1; | |
de5e9086 | 261 | ERR("%s with port %d: unrecognized IPv4 address", ip, port); |
6364a07a DG |
262 | goto error; |
263 | } | |
264 | memset(sockaddr->addr.sin.sin_zero, 0, sizeof(sockaddr->addr.sin.sin_zero)); | |
265 | ||
266 | error: | |
267 | return ret; | |
268 | } | |
269 | ||
270 | /* | |
271 | * Init IPv6 sockaddr structure. | |
272 | */ | |
273 | int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr *sockaddr, | |
274 | const char *ip, unsigned int port) | |
275 | { | |
276 | int ret; | |
277 | ||
a0377dfe FD |
278 | LTTNG_ASSERT(sockaddr); |
279 | LTTNG_ASSERT(ip); | |
280 | LTTNG_ASSERT(port > 0 && port <= 65535); | |
6364a07a DG |
281 | |
282 | memset(sockaddr, 0, sizeof(struct lttcomm_sockaddr)); | |
283 | ||
284 | sockaddr->type = LTTCOMM_INET6; | |
285 | sockaddr->addr.sin6.sin6_family = AF_INET6; | |
286 | sockaddr->addr.sin6.sin6_port = htons(port); | |
287 | ret = inet_pton(sockaddr->addr.sin6.sin6_family, ip, | |
288 | &sockaddr->addr.sin6.sin6_addr); | |
289 | if (ret < 1) { | |
290 | ret = -1; | |
291 | goto error; | |
292 | } | |
293 | ||
294 | error: | |
295 | return ret; | |
296 | } | |
de5e9086 DG |
297 | |
298 | /* | |
299 | * Return allocated lttcomm socket structure from lttng URI. | |
300 | */ | |
301 | struct lttcomm_sock *lttcomm_alloc_sock_from_uri(struct lttng_uri *uri) | |
302 | { | |
303 | int ret; | |
304 | int _sock_proto; | |
305 | struct lttcomm_sock *sock = NULL; | |
306 | ||
307 | /* Safety net */ | |
a0377dfe | 308 | LTTNG_ASSERT(uri); |
de5e9086 DG |
309 | |
310 | /* Check URI protocol */ | |
311 | if (uri->proto == LTTNG_TCP) { | |
312 | _sock_proto = LTTCOMM_SOCK_TCP; | |
313 | } else { | |
314 | ERR("Relayd invalid URI proto: %d", uri->proto); | |
315 | goto alloc_error; | |
316 | } | |
317 | ||
64efa44e | 318 | sock = lttcomm_alloc_sock((lttcomm_sock_proto) _sock_proto); |
de5e9086 DG |
319 | if (sock == NULL) { |
320 | goto alloc_error; | |
321 | } | |
322 | ||
323 | /* Check destination type */ | |
324 | if (uri->dtype == LTTNG_DST_IPV4) { | |
325 | ret = lttcomm_init_inet_sockaddr(&sock->sockaddr, uri->dst.ipv4, | |
326 | uri->port); | |
327 | if (ret < 0) { | |
328 | goto error; | |
329 | } | |
330 | } else if (uri->dtype == LTTNG_DST_IPV6) { | |
331 | ret = lttcomm_init_inet6_sockaddr(&sock->sockaddr, uri->dst.ipv6, | |
332 | uri->port); | |
333 | if (ret < 0) { | |
334 | goto error; | |
335 | } | |
336 | } else { | |
337 | /* Command URI is invalid */ | |
338 | ERR("Relayd invalid URI dst type: %d", uri->dtype); | |
339 | goto error; | |
340 | } | |
341 | ||
342 | return sock; | |
343 | ||
344 | error: | |
345 | lttcomm_destroy_sock(sock); | |
346 | alloc_error: | |
347 | return NULL; | |
348 | } | |
349 | ||
350 | /* | |
351 | * Destroy and free lttcomm socket. | |
352 | */ | |
353 | void lttcomm_destroy_sock(struct lttcomm_sock *sock) | |
354 | { | |
0e428499 | 355 | free(sock); |
de5e9086 | 356 | } |
6151a90f JD |
357 | |
358 | /* | |
359 | * Allocate and return a relayd socket object using a given URI to initialize | |
360 | * it and the major/minor version of the supported protocol. | |
361 | * | |
362 | * On error, NULL is returned. | |
363 | */ | |
364 | struct lttcomm_relayd_sock *lttcomm_alloc_relayd_sock(struct lttng_uri *uri, | |
365 | uint32_t major, uint32_t minor) | |
366 | { | |
367 | int ret; | |
368 | struct lttcomm_sock *tmp_sock = NULL; | |
369 | struct lttcomm_relayd_sock *rsock = NULL; | |
370 | ||
a0377dfe | 371 | LTTNG_ASSERT(uri); |
6151a90f | 372 | |
64efa44e | 373 | rsock = (lttcomm_relayd_sock *) zmalloc(sizeof(*rsock)); |
6151a90f JD |
374 | if (!rsock) { |
375 | PERROR("zmalloc relayd sock"); | |
376 | goto error; | |
377 | } | |
378 | ||
379 | /* Allocate socket object from URI */ | |
380 | tmp_sock = lttcomm_alloc_sock_from_uri(uri); | |
381 | if (tmp_sock == NULL) { | |
382 | goto error_free; | |
383 | } | |
384 | ||
385 | /* | |
386 | * Create socket object which basically sets the ops according to the | |
387 | * socket protocol. | |
388 | */ | |
389 | lttcomm_copy_sock(&rsock->sock, tmp_sock); | |
390 | /* Temporary socket pointer not needed anymore. */ | |
391 | lttcomm_destroy_sock(tmp_sock); | |
392 | ret = lttcomm_create_sock(&rsock->sock); | |
393 | if (ret < 0) { | |
394 | goto error_free; | |
395 | } | |
396 | ||
397 | rsock->major = major; | |
398 | rsock->minor = minor; | |
399 | ||
400 | return rsock; | |
401 | ||
402 | error_free: | |
403 | free(rsock); | |
404 | error: | |
405 | return NULL; | |
406 | } | |
554831e7 | 407 | |
783a3b9a MD |
408 | /* |
409 | * Set socket receiving timeout. | |
410 | */ | |
783a3b9a MD |
411 | int lttcomm_setsockopt_rcv_timeout(int sock, unsigned int msec) |
412 | { | |
413 | int ret; | |
414 | struct timeval tv; | |
415 | ||
416 | tv.tv_sec = msec / 1000; | |
417 | tv.tv_usec = (msec % 1000) * 1000; | |
418 | ||
419 | ret = setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); | |
420 | if (ret < 0) { | |
421 | PERROR("setsockopt SO_RCVTIMEO"); | |
422 | } | |
423 | ||
424 | return ret; | |
425 | } | |
426 | ||
427 | /* | |
428 | * Set socket sending timeout. | |
429 | */ | |
783a3b9a MD |
430 | int lttcomm_setsockopt_snd_timeout(int sock, unsigned int msec) |
431 | { | |
432 | int ret; | |
433 | struct timeval tv; | |
434 | ||
435 | tv.tv_sec = msec / 1000; | |
436 | tv.tv_usec = (msec % 1000) * 1000; | |
437 | ||
438 | ret = setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); | |
439 | if (ret < 0) { | |
440 | PERROR("setsockopt SO_SNDTIMEO"); | |
441 | } | |
442 | ||
443 | return ret; | |
444 | } | |
445 | ||
2288467f JG |
446 | int lttcomm_sock_get_port(const struct lttcomm_sock *sock, uint16_t *port) |
447 | { | |
a0377dfe FD |
448 | LTTNG_ASSERT(sock); |
449 | LTTNG_ASSERT(port); | |
450 | LTTNG_ASSERT(sock->sockaddr.type == LTTCOMM_INET || | |
2288467f | 451 | sock->sockaddr.type == LTTCOMM_INET6); |
a0377dfe | 452 | LTTNG_ASSERT(sock->proto == LTTCOMM_SOCK_TCP || |
2288467f JG |
453 | sock->proto == LTTCOMM_SOCK_UDP); |
454 | ||
455 | switch (sock->sockaddr.type) { | |
456 | case LTTCOMM_INET: | |
457 | *port = ntohs(sock->sockaddr.addr.sin.sin_port); | |
458 | break; | |
459 | case LTTCOMM_INET6: | |
460 | *port = ntohs(sock->sockaddr.addr.sin6.sin6_port); | |
461 | break; | |
462 | default: | |
463 | abort(); | |
464 | } | |
465 | ||
466 | return 0; | |
467 | } | |
468 | ||
2288467f JG |
469 | int lttcomm_sock_set_port(struct lttcomm_sock *sock, uint16_t port) |
470 | { | |
a0377dfe FD |
471 | LTTNG_ASSERT(sock); |
472 | LTTNG_ASSERT(sock->sockaddr.type == LTTCOMM_INET || | |
2288467f | 473 | sock->sockaddr.type == LTTCOMM_INET6); |
a0377dfe | 474 | LTTNG_ASSERT(sock->proto == LTTCOMM_SOCK_TCP || |
2288467f JG |
475 | sock->proto == LTTCOMM_SOCK_UDP); |
476 | ||
477 | switch (sock->sockaddr.type) { | |
478 | case LTTCOMM_INET: | |
479 | sock->sockaddr.addr.sin.sin_port = htons(port); | |
480 | break; | |
481 | case LTTCOMM_INET6: | |
482 | sock->sockaddr.addr.sin6.sin6_port = htons(port); | |
483 | break; | |
484 | default: | |
485 | abort(); | |
486 | } | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
554831e7 MD |
491 | void lttcomm_init(void) |
492 | { | |
493 | const char *env; | |
494 | ||
495 | env = getenv(NETWORK_TIMEOUT_ENV); | |
496 | if (env) { | |
497 | long timeout; | |
498 | ||
499 | errno = 0; | |
500 | timeout = strtol(env, NULL, 0); | |
501 | if (errno != 0 || timeout < -1L) { | |
502 | PERROR("Network timeout"); | |
503 | } else { | |
504 | if (timeout > 0) { | |
505 | network_timeout = timeout; | |
506 | } | |
507 | } | |
508 | } | |
509 | } | |
510 | ||
554831e7 MD |
511 | unsigned long lttcomm_get_network_timeout(void) |
512 | { | |
513 | return network_timeout; | |
514 | } | |
4222116f JR |
515 | |
516 | /* | |
517 | * Only valid for an ipv4 and ipv6 bound socket that is already connected to its | |
518 | * peer. | |
519 | */ | |
520 | int lttcomm_populate_sock_from_open_socket( | |
521 | struct lttcomm_sock *sock, | |
522 | int fd, | |
523 | enum lttcomm_sock_proto protocol) | |
524 | { | |
525 | int ret = 0; | |
526 | socklen_t storage_len; | |
527 | struct sockaddr_storage storage = { 0 }; | |
528 | ||
529 | assert(sock); | |
530 | assert(fd >= 0); | |
531 | ||
532 | sock->proto = protocol; | |
533 | ||
534 | storage_len = sizeof(storage); | |
535 | ret = getpeername(fd, (struct sockaddr *) &storage, | |
536 | &storage_len); | |
537 | if (ret) { | |
538 | ERR("Failed to get peer info for socket %d (errno: %d)", fd, | |
539 | errno); | |
540 | ret = -1; | |
541 | goto end; | |
542 | } | |
543 | ||
544 | if (storage_len > sizeof(storage)) { | |
545 | ERR("Failed to get peer info for socket %d: storage size is too small", fd); | |
546 | ret = -1; | |
547 | goto end; | |
548 | } | |
549 | ||
550 | switch (storage.ss_family) { | |
551 | case AF_INET: | |
552 | sock->sockaddr.type = LTTCOMM_INET; | |
553 | memcpy(&sock->sockaddr.addr, &storage, | |
554 | sizeof(struct sockaddr_in)); | |
555 | break; | |
556 | case AF_INET6: | |
557 | sock->sockaddr.type = LTTCOMM_INET6; | |
558 | memcpy(&sock->sockaddr.addr, &storage, | |
559 | sizeof(struct sockaddr_in6)); | |
560 | break; | |
561 | default: | |
562 | abort(); | |
563 | break; | |
564 | } | |
565 | ||
566 | /* Create a valid socket object with a temporary fd. */ | |
567 | ret = lttcomm_create_sock(sock); | |
568 | if (ret < 0) { | |
569 | ERR("Failed to create temporary socket object"); | |
570 | ret = -1; | |
571 | goto end; | |
572 | } | |
573 | ||
574 | /* Substitute the fd. */ | |
575 | if (sock->ops->close(sock)) { | |
576 | ret = -1; | |
577 | goto end; | |
578 | } | |
579 | sock->fd = fd; | |
580 | ||
581 | end: | |
582 | return ret; | |
583 | } |