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 | |
c9e313bc SM |
20 | #include <common/common.hpp> |
21 | #include <common/compat/errno.hpp> | |
990570ed | 22 | |
c9e313bc | 23 | #include "sessiond-comm.hpp" |
fac6795d | 24 | |
6364a07a | 25 | /* For Unix socket */ |
c9e313bc | 26 | #include <common/unix.hpp> |
6364a07a | 27 | /* For Inet socket */ |
c9e313bc | 28 | #include "inet.hpp" |
6364a07a | 29 | /* For Inet6 socket */ |
c9e313bc | 30 | #include "inet6.hpp" |
6364a07a | 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 | { |
64803277 | 181 | struct lttcomm_sock *sock = zmalloc<lttcomm_sock>(); |
6364a07a | 182 | |
de5e9086 DG |
183 | if (sock == NULL) { |
184 | PERROR("zmalloc create sock"); | |
185 | goto end; | |
6364a07a DG |
186 | } |
187 | ||
188 | sock->proto = proto; | |
de5e9086 | 189 | sock->fd = -1; |
6364a07a | 190 | |
de5e9086 DG |
191 | end: |
192 | return sock; | |
6364a07a DG |
193 | } |
194 | ||
195 | /* | |
de5e9086 DG |
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. | |
6364a07a | 201 | */ |
de5e9086 | 202 | struct lttcomm_sock *lttcomm_alloc_copy_sock(struct lttcomm_sock *src) |
6364a07a | 203 | { |
6364a07a DG |
204 | struct lttcomm_sock *sock; |
205 | ||
de5e9086 | 206 | /* Safety net */ |
a0377dfe | 207 | LTTNG_ASSERT(src); |
de5e9086 DG |
208 | |
209 | sock = lttcomm_alloc_sock(src->proto); | |
6364a07a DG |
210 | if (sock == NULL) { |
211 | goto alloc_error; | |
212 | } | |
213 | ||
de5e9086 | 214 | lttcomm_copy_sock(sock, src); |
6364a07a | 215 | |
de5e9086 | 216 | alloc_error: |
6364a07a | 217 | return sock; |
de5e9086 | 218 | } |
6364a07a | 219 | |
de5e9086 DG |
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 */ | |
a0377dfe FD |
229 | LTTNG_ASSERT(dst); |
230 | LTTNG_ASSERT(src); | |
de5e9086 DG |
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)); | |
6364a07a DG |
237 | } |
238 | ||
239 | /* | |
240 | * Init IPv4 sockaddr structure. | |
241 | */ | |
242 | int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr *sockaddr, | |
243 | const char *ip, unsigned int port) | |
244 | { | |
245 | int ret; | |
246 | ||
a0377dfe FD |
247 | LTTNG_ASSERT(sockaddr); |
248 | LTTNG_ASSERT(ip); | |
249 | LTTNG_ASSERT(port > 0 && port <= 65535); | |
6364a07a DG |
250 | |
251 | memset(sockaddr, 0, sizeof(struct lttcomm_sockaddr)); | |
252 | ||
253 | sockaddr->type = LTTCOMM_INET; | |
254 | sockaddr->addr.sin.sin_family = AF_INET; | |
255 | sockaddr->addr.sin.sin_port = htons(port); | |
256 | ret = inet_pton(sockaddr->addr.sin.sin_family, ip, | |
257 | &sockaddr->addr.sin.sin_addr); | |
258 | if (ret < 1) { | |
259 | ret = -1; | |
de5e9086 | 260 | ERR("%s with port %d: unrecognized IPv4 address", ip, port); |
6364a07a DG |
261 | goto error; |
262 | } | |
263 | memset(sockaddr->addr.sin.sin_zero, 0, sizeof(sockaddr->addr.sin.sin_zero)); | |
264 | ||
265 | error: | |
266 | return ret; | |
267 | } | |
268 | ||
269 | /* | |
270 | * Init IPv6 sockaddr structure. | |
271 | */ | |
272 | int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr *sockaddr, | |
273 | const char *ip, unsigned int port) | |
274 | { | |
275 | int ret; | |
276 | ||
a0377dfe FD |
277 | LTTNG_ASSERT(sockaddr); |
278 | LTTNG_ASSERT(ip); | |
279 | LTTNG_ASSERT(port > 0 && port <= 65535); | |
6364a07a DG |
280 | |
281 | memset(sockaddr, 0, sizeof(struct lttcomm_sockaddr)); | |
282 | ||
283 | sockaddr->type = LTTCOMM_INET6; | |
284 | sockaddr->addr.sin6.sin6_family = AF_INET6; | |
285 | sockaddr->addr.sin6.sin6_port = htons(port); | |
286 | ret = inet_pton(sockaddr->addr.sin6.sin6_family, ip, | |
287 | &sockaddr->addr.sin6.sin6_addr); | |
288 | if (ret < 1) { | |
289 | ret = -1; | |
290 | goto error; | |
291 | } | |
292 | ||
293 | error: | |
294 | return ret; | |
295 | } | |
de5e9086 DG |
296 | |
297 | /* | |
298 | * Return allocated lttcomm socket structure from lttng URI. | |
299 | */ | |
300 | struct lttcomm_sock *lttcomm_alloc_sock_from_uri(struct lttng_uri *uri) | |
301 | { | |
302 | int ret; | |
303 | int _sock_proto; | |
304 | struct lttcomm_sock *sock = NULL; | |
305 | ||
306 | /* Safety net */ | |
a0377dfe | 307 | LTTNG_ASSERT(uri); |
de5e9086 DG |
308 | |
309 | /* Check URI protocol */ | |
310 | if (uri->proto == LTTNG_TCP) { | |
311 | _sock_proto = LTTCOMM_SOCK_TCP; | |
312 | } else { | |
313 | ERR("Relayd invalid URI proto: %d", uri->proto); | |
314 | goto alloc_error; | |
315 | } | |
316 | ||
64efa44e | 317 | sock = lttcomm_alloc_sock((lttcomm_sock_proto) _sock_proto); |
de5e9086 DG |
318 | if (sock == NULL) { |
319 | goto alloc_error; | |
320 | } | |
321 | ||
322 | /* Check destination type */ | |
323 | if (uri->dtype == LTTNG_DST_IPV4) { | |
324 | ret = lttcomm_init_inet_sockaddr(&sock->sockaddr, uri->dst.ipv4, | |
325 | uri->port); | |
326 | if (ret < 0) { | |
327 | goto error; | |
328 | } | |
329 | } else if (uri->dtype == LTTNG_DST_IPV6) { | |
330 | ret = lttcomm_init_inet6_sockaddr(&sock->sockaddr, uri->dst.ipv6, | |
331 | uri->port); | |
332 | if (ret < 0) { | |
333 | goto error; | |
334 | } | |
335 | } else { | |
336 | /* Command URI is invalid */ | |
337 | ERR("Relayd invalid URI dst type: %d", uri->dtype); | |
338 | goto error; | |
339 | } | |
340 | ||
341 | return sock; | |
342 | ||
343 | error: | |
344 | lttcomm_destroy_sock(sock); | |
345 | alloc_error: | |
346 | return NULL; | |
347 | } | |
348 | ||
349 | /* | |
350 | * Destroy and free lttcomm socket. | |
351 | */ | |
352 | void lttcomm_destroy_sock(struct lttcomm_sock *sock) | |
353 | { | |
0e428499 | 354 | free(sock); |
de5e9086 | 355 | } |
6151a90f JD |
356 | |
357 | /* | |
358 | * Allocate and return a relayd socket object using a given URI to initialize | |
359 | * it and the major/minor version of the supported protocol. | |
360 | * | |
361 | * On error, NULL is returned. | |
362 | */ | |
363 | struct lttcomm_relayd_sock *lttcomm_alloc_relayd_sock(struct lttng_uri *uri, | |
364 | uint32_t major, uint32_t minor) | |
365 | { | |
366 | int ret; | |
367 | struct lttcomm_sock *tmp_sock = NULL; | |
64803277 | 368 | struct lttcomm_relayd_sock *rsock = zmalloc<lttcomm_relayd_sock>(); |
6151a90f | 369 | |
a0377dfe | 370 | LTTNG_ASSERT(uri); |
6151a90f | 371 | |
6151a90f JD |
372 | if (!rsock) { |
373 | PERROR("zmalloc relayd sock"); | |
374 | goto error; | |
375 | } | |
376 | ||
377 | /* Allocate socket object from URI */ | |
378 | tmp_sock = lttcomm_alloc_sock_from_uri(uri); | |
379 | if (tmp_sock == NULL) { | |
380 | goto error_free; | |
381 | } | |
382 | ||
383 | /* | |
384 | * Create socket object which basically sets the ops according to the | |
385 | * socket protocol. | |
386 | */ | |
387 | lttcomm_copy_sock(&rsock->sock, tmp_sock); | |
388 | /* Temporary socket pointer not needed anymore. */ | |
389 | lttcomm_destroy_sock(tmp_sock); | |
390 | ret = lttcomm_create_sock(&rsock->sock); | |
391 | if (ret < 0) { | |
392 | goto error_free; | |
393 | } | |
394 | ||
395 | rsock->major = major; | |
396 | rsock->minor = minor; | |
397 | ||
398 | return rsock; | |
399 | ||
400 | error_free: | |
401 | free(rsock); | |
402 | error: | |
403 | return NULL; | |
404 | } | |
554831e7 | 405 | |
783a3b9a MD |
406 | /* |
407 | * Set socket receiving timeout. | |
408 | */ | |
783a3b9a MD |
409 | int lttcomm_setsockopt_rcv_timeout(int sock, unsigned int msec) |
410 | { | |
411 | int ret; | |
412 | struct timeval tv; | |
413 | ||
414 | tv.tv_sec = msec / 1000; | |
415 | tv.tv_usec = (msec % 1000) * 1000; | |
416 | ||
417 | ret = setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); | |
418 | if (ret < 0) { | |
419 | PERROR("setsockopt SO_RCVTIMEO"); | |
420 | } | |
421 | ||
422 | return ret; | |
423 | } | |
424 | ||
425 | /* | |
426 | * Set socket sending timeout. | |
427 | */ | |
783a3b9a MD |
428 | int lttcomm_setsockopt_snd_timeout(int sock, unsigned int msec) |
429 | { | |
430 | int ret; | |
431 | struct timeval tv; | |
432 | ||
433 | tv.tv_sec = msec / 1000; | |
434 | tv.tv_usec = (msec % 1000) * 1000; | |
435 | ||
436 | ret = setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); | |
437 | if (ret < 0) { | |
438 | PERROR("setsockopt SO_SNDTIMEO"); | |
439 | } | |
440 | ||
441 | return ret; | |
442 | } | |
443 | ||
2288467f JG |
444 | int lttcomm_sock_get_port(const struct lttcomm_sock *sock, uint16_t *port) |
445 | { | |
a0377dfe FD |
446 | LTTNG_ASSERT(sock); |
447 | LTTNG_ASSERT(port); | |
448 | LTTNG_ASSERT(sock->sockaddr.type == LTTCOMM_INET || | |
2288467f | 449 | sock->sockaddr.type == LTTCOMM_INET6); |
a0377dfe | 450 | LTTNG_ASSERT(sock->proto == LTTCOMM_SOCK_TCP || |
2288467f JG |
451 | sock->proto == LTTCOMM_SOCK_UDP); |
452 | ||
453 | switch (sock->sockaddr.type) { | |
454 | case LTTCOMM_INET: | |
455 | *port = ntohs(sock->sockaddr.addr.sin.sin_port); | |
456 | break; | |
457 | case LTTCOMM_INET6: | |
458 | *port = ntohs(sock->sockaddr.addr.sin6.sin6_port); | |
459 | break; | |
460 | default: | |
461 | abort(); | |
462 | } | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
2288467f JG |
467 | int lttcomm_sock_set_port(struct lttcomm_sock *sock, uint16_t port) |
468 | { | |
a0377dfe FD |
469 | LTTNG_ASSERT(sock); |
470 | LTTNG_ASSERT(sock->sockaddr.type == LTTCOMM_INET || | |
2288467f | 471 | sock->sockaddr.type == LTTCOMM_INET6); |
a0377dfe | 472 | LTTNG_ASSERT(sock->proto == LTTCOMM_SOCK_TCP || |
2288467f JG |
473 | sock->proto == LTTCOMM_SOCK_UDP); |
474 | ||
475 | switch (sock->sockaddr.type) { | |
476 | case LTTCOMM_INET: | |
477 | sock->sockaddr.addr.sin.sin_port = htons(port); | |
478 | break; | |
479 | case LTTCOMM_INET6: | |
480 | sock->sockaddr.addr.sin6.sin6_port = htons(port); | |
481 | break; | |
482 | default: | |
483 | abort(); | |
484 | } | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
554831e7 MD |
489 | void lttcomm_init(void) |
490 | { | |
491 | const char *env; | |
492 | ||
493 | env = getenv(NETWORK_TIMEOUT_ENV); | |
494 | if (env) { | |
495 | long timeout; | |
496 | ||
497 | errno = 0; | |
498 | timeout = strtol(env, NULL, 0); | |
499 | if (errno != 0 || timeout < -1L) { | |
500 | PERROR("Network timeout"); | |
501 | } else { | |
502 | if (timeout > 0) { | |
503 | network_timeout = timeout; | |
504 | } | |
505 | } | |
506 | } | |
507 | } | |
508 | ||
554831e7 MD |
509 | unsigned long lttcomm_get_network_timeout(void) |
510 | { | |
511 | return network_timeout; | |
512 | } | |
4222116f JR |
513 | |
514 | /* | |
515 | * Only valid for an ipv4 and ipv6 bound socket that is already connected to its | |
516 | * peer. | |
517 | */ | |
518 | int lttcomm_populate_sock_from_open_socket( | |
519 | struct lttcomm_sock *sock, | |
520 | int fd, | |
521 | enum lttcomm_sock_proto protocol) | |
522 | { | |
523 | int ret = 0; | |
524 | socklen_t storage_len; | |
1c9a0b0e | 525 | struct sockaddr_storage storage = {}; |
4222116f JR |
526 | |
527 | assert(sock); | |
528 | assert(fd >= 0); | |
529 | ||
530 | sock->proto = protocol; | |
531 | ||
532 | storage_len = sizeof(storage); | |
533 | ret = getpeername(fd, (struct sockaddr *) &storage, | |
534 | &storage_len); | |
535 | if (ret) { | |
536 | ERR("Failed to get peer info for socket %d (errno: %d)", fd, | |
537 | errno); | |
538 | ret = -1; | |
539 | goto end; | |
540 | } | |
541 | ||
542 | if (storage_len > sizeof(storage)) { | |
543 | ERR("Failed to get peer info for socket %d: storage size is too small", fd); | |
544 | ret = -1; | |
545 | goto end; | |
546 | } | |
547 | ||
548 | switch (storage.ss_family) { | |
549 | case AF_INET: | |
550 | sock->sockaddr.type = LTTCOMM_INET; | |
551 | memcpy(&sock->sockaddr.addr, &storage, | |
552 | sizeof(struct sockaddr_in)); | |
553 | break; | |
554 | case AF_INET6: | |
555 | sock->sockaddr.type = LTTCOMM_INET6; | |
556 | memcpy(&sock->sockaddr.addr, &storage, | |
557 | sizeof(struct sockaddr_in6)); | |
558 | break; | |
559 | default: | |
560 | abort(); | |
561 | break; | |
562 | } | |
563 | ||
564 | /* Create a valid socket object with a temporary fd. */ | |
565 | ret = lttcomm_create_sock(sock); | |
566 | if (ret < 0) { | |
567 | ERR("Failed to create temporary socket object"); | |
568 | ret = -1; | |
569 | goto end; | |
570 | } | |
571 | ||
572 | /* Substitute the fd. */ | |
573 | if (sock->ops->close(sock)) { | |
574 | ret = -1; | |
575 | goto end; | |
576 | } | |
577 | sock->fd = fd; | |
578 | ||
579 | end: | |
580 | return ret; | |
581 | } |