Commit | Line | Data |
---|---|---|
84004dbf RS |
1 | /* |
2 | Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com> | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU Lesser General Public License as published by | |
6 | the Free Software Foundation; either version 2.1 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public License | |
15 | along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
a8a1b858 M |
17 | #ifdef WIN32 |
18 | #include "win32_compat.h" | |
19 | #else | |
20 | #include <unistd.h> | |
21 | #include <poll.h> | |
22 | #include <arpa/inet.h> | |
23 | #include <sys/ioctl.h> | |
24 | #include <sys/socket.h> | |
25 | #include <netdb.h> | |
26 | #endif/*WIN32*/ | |
84004dbf | 27 | |
fc01d2a9 TN |
28 | #ifdef HAVE_CONFIG_H |
29 | #include "config.h" | |
30 | #endif | |
84004dbf | 31 | #include <stdio.h> |
98f5fee8 | 32 | #include <stdlib.h> |
4a2b0876 | 33 | #include <assert.h> |
84004dbf | 34 | #include <fcntl.h> |
84004dbf RS |
35 | #include <string.h> |
36 | #include <errno.h> | |
fc01d2a9 TN |
37 | #ifdef HAVE_SYS_FILIO_H |
38 | #include <sys/filio.h> | |
39 | #endif | |
647d2ea1 RS |
40 | #ifdef HAVE_SYS_SOCKIO_H |
41 | #include <sys/sockio.h> | |
42 | #endif | |
485bc9b9 | 43 | #include <sys/types.h> |
763cd6e3 | 44 | #include "libnfs-zdr.h" |
84004dbf RS |
45 | #include "libnfs.h" |
46 | #include "libnfs-raw.h" | |
47 | #include "libnfs-private.h" | |
48 | #include "slist.h" | |
49 | ||
fcc42bfe M |
50 | #ifdef WIN32 |
51 | //has to be included after stdlib!! | |
52 | #include "win32_errnowrapper.h" | |
53 | #endif | |
54 | ||
55 | ||
1744ef90 RS |
56 | static int rpc_reconnect_requeue(struct rpc_context *rpc); |
57 | static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_storage *s); | |
b077fdeb | 58 | |
84004dbf RS |
59 | static void set_nonblocking(int fd) |
60 | { | |
99c14c9b | 61 | int v = 0; |
6874f61e | 62 | #if defined(WIN32) |
99c14c9b | 63 | long nonblocking=1; |
64 | v = ioctlsocket(fd, FIONBIO,&nonblocking); | |
6874f61e | 65 | #else |
84004dbf RS |
66 | v = fcntl(fd, F_GETFL, 0); |
67 | fcntl(fd, F_SETFL, v | O_NONBLOCK); | |
a8a1b858 | 68 | #endif //FIXME |
84004dbf RS |
69 | } |
70 | ||
71 | int rpc_get_fd(struct rpc_context *rpc) | |
72 | { | |
4a2b0876 RS |
73 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
74 | ||
84004dbf RS |
75 | return rpc->fd; |
76 | } | |
77 | ||
78 | int rpc_which_events(struct rpc_context *rpc) | |
79 | { | |
4a2b0876 RS |
80 | int events; |
81 | ||
82 | assert(rpc->magic == RPC_CONTEXT_MAGIC); | |
83 | ||
84 | events = rpc->is_connected ? POLLIN : POLLOUT; | |
84004dbf | 85 | |
5911f3e8 RS |
86 | if (rpc->is_udp != 0) { |
87 | /* for udp sockets we only wait for pollin */ | |
88 | return POLLIN; | |
89 | } | |
90 | ||
84004dbf RS |
91 | if (rpc->outqueue) { |
92 | events |= POLLOUT; | |
93 | } | |
94 | return events; | |
95 | } | |
96 | ||
97 | static int rpc_write_to_socket(struct rpc_context *rpc) | |
98 | { | |
d14e2838 | 99 | int32_t count; |
84004dbf | 100 | |
4a2b0876 RS |
101 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
102 | ||
84004dbf | 103 | if (rpc->fd == -1) { |
1896d37b RS |
104 | rpc_set_error(rpc, "trying to write but not connected"); |
105 | return -1; | |
84004dbf RS |
106 | } |
107 | ||
108 | while (rpc->outqueue != NULL) { | |
183451cf | 109 | int64_t total; |
84004dbf RS |
110 | |
111 | total = rpc->outqueue->outdata.size; | |
112 | ||
6874f61e RS |
113 | #if defined(WIN32) |
114 | count = send(rpc->fd, rpc->outqueue->outdata.data + rpc->outqueue->written, total - rpc->outqueue->written, 0); | |
115 | #else | |
84004dbf | 116 | count = write(rpc->fd, rpc->outqueue->outdata.data + rpc->outqueue->written, total - rpc->outqueue->written); |
6874f61e | 117 | #endif |
84004dbf RS |
118 | if (count == -1) { |
119 | if (errno == EAGAIN || errno == EWOULDBLOCK) { | |
84004dbf RS |
120 | return 0; |
121 | } | |
1896d37b RS |
122 | rpc_set_error(rpc, "Error when writing to socket :%s(%d)", strerror(errno), errno); |
123 | return -1; | |
84004dbf RS |
124 | } |
125 | ||
126 | rpc->outqueue->written += count; | |
127 | if (rpc->outqueue->written == total) { | |
128 | struct rpc_pdu *pdu = rpc->outqueue; | |
129 | ||
130 | SLIST_REMOVE(&rpc->outqueue, pdu); | |
131 | SLIST_ADD_END(&rpc->waitpdu, pdu); | |
132 | } | |
133 | } | |
134 | return 0; | |
135 | } | |
136 | ||
137 | static int rpc_read_from_socket(struct rpc_context *rpc) | |
138 | { | |
139 | int available; | |
140 | int size; | |
cdb19ec1 | 141 | int pdu_size; |
d14e2838 | 142 | int32_t count; |
84004dbf | 143 | |
f3a75078 | 144 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
84004dbf | 145 | |
4a2b0876 RS |
146 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
147 | ||
6874f61e RS |
148 | #if defined(WIN32) |
149 | if (ioctlsocket(rpc->fd, FIONREAD, &available) != 0) { | |
150 | #else | |
84004dbf | 151 | if (ioctl(rpc->fd, FIONREAD, &available) != 0) { |
6874f61e | 152 | #endif |
84004dbf RS |
153 | rpc_set_error(rpc, "Ioctl FIONREAD returned error : %d. Closing socket.", errno); |
154 | return -1; | |
155 | } | |
a8a1b858 | 156 | |
84004dbf RS |
157 | if (available == 0) { |
158 | rpc_set_error(rpc, "Socket has been closed"); | |
1896d37b | 159 | return -1; |
84004dbf | 160 | } |
cdb19ec1 | 161 | |
0268794f RS |
162 | if (rpc->is_udp) { |
163 | char *buf; | |
164 | socklen_t socklen = sizeof(rpc->udp_src); | |
165 | ||
166 | buf = malloc(available); | |
167 | if (buf == NULL) { | |
168 | rpc_set_error(rpc, "Failed to malloc buffer for recvfrom"); | |
169 | return -1; | |
170 | } | |
171 | count = recvfrom(rpc->fd, buf, available, MSG_DONTWAIT, (struct sockaddr *)&rpc->udp_src, &socklen); | |
172 | if (count < 0) { | |
173 | rpc_set_error(rpc, "Failed recvfrom: %s", strerror(errno)); | |
174 | free(buf); | |
175 | } | |
176 | if (rpc_process_pdu(rpc, buf, count) != 0) { | |
177 | rpc_set_error(rpc, "Invalid/garbage pdu received from server. Ignoring PDU"); | |
178 | free(buf); | |
179 | return -1; | |
180 | } | |
181 | free(buf); | |
182 | return 0; | |
183 | } | |
184 | ||
cdb19ec1 RS |
185 | /* read record marker, 4 bytes at the beginning of every pdu */ |
186 | if (rpc->inbuf == NULL) { | |
187 | rpc->insize = 4; | |
188 | rpc->inbuf = malloc(rpc->insize); | |
189 | if (rpc->inbuf == NULL) { | |
190 | rpc_set_error(rpc, "Failed to allocate buffer for record marker, errno:%d. Closing socket.", errno); | |
191 | return -1; | |
192 | } | |
193 | } | |
194 | if (rpc->inpos < 4) { | |
195 | size = 4 - rpc->inpos; | |
196 | ||
6874f61e RS |
197 | #if defined(WIN32) |
198 | count = recv(rpc->fd, rpc->inbuf + rpc->inpos, size, 0); | |
199 | #else | |
cdb19ec1 | 200 | count = read(rpc->fd, rpc->inbuf + rpc->inpos, size); |
6874f61e | 201 | #endif |
cdb19ec1 RS |
202 | if (count == -1) { |
203 | if (errno == EINTR) { | |
204 | return 0; | |
205 | } | |
206 | rpc_set_error(rpc, "Read from socket failed, errno:%d. Closing socket.", errno); | |
207 | return -1; | |
208 | } | |
209 | available -= count; | |
210 | rpc->inpos += count; | |
211 | } | |
212 | ||
213 | if (available == 0) { | |
214 | return 0; | |
215 | } | |
216 | ||
217 | pdu_size = rpc_get_pdu_size(rpc->inbuf); | |
218 | if (rpc->insize < pdu_size) { | |
219 | unsigned char *buf; | |
220 | ||
221 | buf = malloc(pdu_size); | |
222 | if (buf == NULL) { | |
223 | rpc_set_error(rpc, "Failed to allocate buffer of %d bytes for pdu, errno:%d. Closing socket.", pdu_size, errno); | |
224 | return -1; | |
225 | } | |
226 | memcpy(buf, rpc->inbuf, rpc->insize); | |
227 | free(rpc->inbuf); | |
228 | rpc->inbuf = buf; | |
229 | rpc->insize = rpc_get_pdu_size(rpc->inbuf); | |
84004dbf | 230 | } |
cdb19ec1 RS |
231 | |
232 | size = available; | |
233 | if (size > rpc->insize - rpc->inpos) { | |
234 | size = rpc->insize - rpc->inpos; | |
84004dbf RS |
235 | } |
236 | ||
6874f61e RS |
237 | #if defined(WIN32) |
238 | count = recv(rpc->fd, rpc->inbuf + rpc->inpos, size, 0); | |
239 | #else | |
cdb19ec1 | 240 | count = read(rpc->fd, rpc->inbuf + rpc->inpos, size); |
6874f61e | 241 | #endif |
84004dbf RS |
242 | if (count == -1) { |
243 | if (errno == EINTR) { | |
84004dbf RS |
244 | return 0; |
245 | } | |
246 | rpc_set_error(rpc, "Read from socket failed, errno:%d. Closing socket.", errno); | |
1896d37b | 247 | return -1; |
84004dbf | 248 | } |
cdb19ec1 RS |
249 | available -= count; |
250 | rpc->inpos += count; | |
84004dbf | 251 | |
cdb19ec1 RS |
252 | if (rpc->inpos == rpc->insize) { |
253 | if (rpc_process_pdu(rpc, rpc->inbuf, pdu_size) != 0) { | |
84004dbf | 254 | rpc_set_error(rpc, "Invalid/garbage pdu received from server. Closing socket"); |
1896d37b | 255 | return -1; |
84004dbf | 256 | } |
cdb19ec1 RS |
257 | free(rpc->inbuf); |
258 | rpc->inbuf = NULL; | |
259 | rpc->insize = 0; | |
260 | rpc->inpos = 0; | |
84004dbf | 261 | } |
cdb19ec1 | 262 | |
84004dbf RS |
263 | return 0; |
264 | } | |
265 | ||
266 | ||
267 | ||
268 | int rpc_service(struct rpc_context *rpc, int revents) | |
269 | { | |
4a2b0876 RS |
270 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
271 | ||
84004dbf | 272 | if (revents & POLLERR) { |
fcc42bfe | 273 | #ifdef WIN32 |
a8a1b858 | 274 | char err = 0; |
fcc42bfe M |
275 | #else |
276 | int err = 0; | |
277 | #endif | |
912f7ad5 RS |
278 | socklen_t err_size = sizeof(err); |
279 | ||
280 | if (getsockopt(rpc->fd, SOL_SOCKET, SO_ERROR, | |
bb4e9ed6 | 281 | (char *)&err, &err_size) != 0 || err != 0) { |
912f7ad5 RS |
282 | if (err == 0) { |
283 | err = errno; | |
284 | } | |
285 | rpc_set_error(rpc, "rpc_service: socket error " | |
286 | "%s(%d).", | |
287 | strerror(err), err); | |
84004dbf | 288 | } else { |
912f7ad5 RS |
289 | rpc_set_error(rpc, "rpc_service: POLLERR, " |
290 | "Unknown socket error."); | |
84004dbf | 291 | } |
b990de23 RS |
292 | if (rpc->connect_cb != NULL) { |
293 | rpc->connect_cb(rpc, RPC_STATUS_ERROR, rpc->error_string, rpc->connect_data); | |
294 | } | |
84004dbf RS |
295 | return -1; |
296 | } | |
297 | if (revents & POLLHUP) { | |
84004dbf | 298 | rpc_set_error(rpc, "Socket failed with POLLHUP"); |
b990de23 RS |
299 | if (rpc->connect_cb != NULL) { |
300 | rpc->connect_cb(rpc, RPC_STATUS_ERROR, rpc->error_string, rpc->connect_data); | |
301 | } | |
1896d37b | 302 | return -1; |
84004dbf RS |
303 | } |
304 | ||
305 | if (rpc->is_connected == 0 && rpc->fd != -1 && revents&POLLOUT) { | |
912f7ad5 RS |
306 | int err = 0; |
307 | socklen_t err_size = sizeof(err); | |
308 | ||
309 | if (getsockopt(rpc->fd, SOL_SOCKET, SO_ERROR, | |
bb4e9ed6 | 310 | (char *)&err, &err_size) != 0 || err != 0) { |
912f7ad5 RS |
311 | if (err == 0) { |
312 | err = errno; | |
313 | } | |
314 | rpc_set_error(rpc, "rpc_service: socket error " | |
315 | "%s(%d) while connecting.", | |
316 | strerror(err), err); | |
b990de23 RS |
317 | if (rpc->connect_cb != NULL) { |
318 | rpc->connect_cb(rpc, RPC_STATUS_ERROR, | |
912f7ad5 | 319 | NULL, rpc->connect_data); |
b990de23 | 320 | } |
912f7ad5 RS |
321 | return -1; |
322 | } | |
323 | ||
84004dbf | 324 | rpc->is_connected = 1; |
b990de23 RS |
325 | if (rpc->connect_cb != NULL) { |
326 | rpc->connect_cb(rpc, RPC_STATUS_SUCCESS, NULL, rpc->connect_data); | |
327 | } | |
84004dbf RS |
328 | return 0; |
329 | } | |
330 | ||
b077fdeb RS |
331 | if (revents & POLLIN) { |
332 | if (rpc_read_from_socket(rpc) != 0) { | |
1744ef90 | 333 | rpc_reconnect_requeue(rpc); |
b077fdeb | 334 | return 0; |
84004dbf RS |
335 | } |
336 | } | |
337 | ||
b077fdeb RS |
338 | if (revents & POLLOUT && rpc->outqueue != NULL) { |
339 | if (rpc_write_to_socket(rpc) != 0) { | |
340 | rpc_set_error(rpc, "write to socket failed"); | |
1896d37b | 341 | return -1; |
84004dbf RS |
342 | } |
343 | } | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
1744ef90 | 348 | void rpc_set_autoreconnect(struct rpc_context *rpc) |
84004dbf | 349 | { |
4a2b0876 RS |
350 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
351 | ||
1744ef90 RS |
352 | rpc->auto_reconnect = 1; |
353 | } | |
84004dbf | 354 | |
1744ef90 RS |
355 | void rpc_unset_autoreconnect(struct rpc_context *rpc) |
356 | { | |
4a2b0876 RS |
357 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
358 | ||
1744ef90 RS |
359 | rpc->auto_reconnect = 0; |
360 | } | |
070287e5 | 361 | |
1744ef90 RS |
362 | static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_storage *s) |
363 | { | |
364 | int socksize; | |
84004dbf | 365 | |
4a2b0876 RS |
366 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
367 | ||
1744ef90 | 368 | switch (s->ss_family) { |
84004dbf | 369 | case AF_INET: |
84004dbf | 370 | socksize = sizeof(struct sockaddr_in); |
6874f61e | 371 | rpc->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
84004dbf | 372 | break; |
1744ef90 RS |
373 | default: |
374 | rpc_set_error(rpc, "Can not handle AF_FAMILY:%d", s->ss_family); | |
375 | return -1; | |
84004dbf RS |
376 | } |
377 | ||
378 | if (rpc->fd == -1) { | |
379 | rpc_set_error(rpc, "Failed to open socket"); | |
1896d37b | 380 | return -1; |
84004dbf RS |
381 | } |
382 | ||
07fd0cbc RS |
383 | /* Some systems allow you to set capabilities on an executable |
384 | * to allow the file to be executed with privilege to bind to | |
385 | * privileged system ports, even if the user is not root. | |
386 | * | |
387 | * Opportunistically try to bind the socket to a low numbered | |
388 | * system port in the hope that the user is either root or the | |
389 | * executable has the CAP_NET_BIND_SERVICE. | |
390 | * | |
391 | * As soon as we fail the bind() with EACCES we know we will never | |
392 | * be able to bind to a system port so we terminate the loop. | |
393 | * | |
394 | * On linux, use | |
395 | * sudo setcap 'cap_net_bind_service=+ep' /path/executable | |
396 | * to make the executable able to bind to a system port. | |
ac559609 RI |
397 | * |
398 | * On Windows, there is no concept of privileged ports. Thus | |
399 | * binding will usually succeed. | |
07fd0cbc | 400 | */ |
ac559609 RI |
401 | { |
402 | struct sockaddr_in sin; | |
403 | static int portOfs = 0; | |
404 | const int firstPort = 512; /* >= 512 according to Sun docs */ | |
405 | const int portCount = IPPORT_RESERVED - firstPort; | |
406 | int startOfs = portOfs, port, rc; | |
407 | ||
408 | do { | |
409 | rc = -1; | |
410 | port = htons(firstPort + portOfs); | |
411 | portOfs = (portOfs + 1) % portCount; | |
412 | ||
413 | /* skip well-known ports */ | |
414 | if (!getservbyport(port, "tcp")) { | |
415 | memset(&sin, 0, sizeof(sin)); | |
416 | sin.sin_port = port; | |
417 | sin.sin_family = AF_INET; | |
418 | sin.sin_addr.s_addr = 0; | |
419 | ||
420 | rc = bind(rpc->fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)); | |
421 | #if !defined(WIN32) | |
422 | /* we got EACCES, so don't try again */ | |
423 | if (rc != 0 && errno == EACCES) | |
424 | break; | |
425 | #endif | |
07fd0cbc | 426 | } |
ac559609 | 427 | } while (rc != 0 && portOfs != startOfs); |
07fd0cbc | 428 | } |
07fd0cbc | 429 | |
84004dbf | 430 | set_nonblocking(rpc->fd); |
07fd0cbc | 431 | |
f96b24fa RI |
432 | if (connect(rpc->fd, (struct sockaddr *)s, socksize) != 0 && errno != EINPROGRESS) { |
433 | rpc_set_error(rpc, "connect() to server failed. %s(%d)", strerror(errno), errno); | |
1896d37b | 434 | return -1; |
84004dbf RS |
435 | } |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
1744ef90 RS |
440 | int rpc_connect_async(struct rpc_context *rpc, const char *server, int port, rpc_cb cb, void *private_data) |
441 | { | |
442 | struct sockaddr_in *sin = (struct sockaddr_in *)&rpc->s; | |
443 | ||
4a2b0876 RS |
444 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
445 | ||
1744ef90 RS |
446 | if (rpc->fd != -1) { |
447 | rpc_set_error(rpc, "Trying to connect while already connected"); | |
448 | return -1; | |
449 | } | |
450 | ||
451 | if (rpc->is_udp != 0) { | |
452 | rpc_set_error(rpc, "Trying to connect on UDP socket"); | |
453 | return -1; | |
454 | } | |
455 | ||
456 | rpc->auto_reconnect = 0; | |
457 | ||
458 | sin->sin_family = AF_INET; | |
459 | sin->sin_port = htons(port); | |
460 | if (inet_pton(AF_INET, server, &sin->sin_addr) != 1) { | |
461 | rpc_set_error(rpc, "Not a valid server ip address"); | |
462 | return -1; | |
463 | } | |
464 | ||
465 | ||
466 | switch (rpc->s.ss_family) { | |
467 | case AF_INET: | |
468 | #ifdef HAVE_SOCKADDR_LEN | |
469 | sin->sin_len = sizeof(struct sockaddr_in); | |
470 | #endif | |
471 | break; | |
472 | } | |
473 | ||
474 | rpc->connect_cb = cb; | |
475 | rpc->connect_data = private_data; | |
476 | ||
477 | if (rpc_connect_sockaddr_async(rpc, &rpc->s) != 0) { | |
478 | return -1; | |
479 | } | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
84004dbf RS |
484 | int rpc_disconnect(struct rpc_context *rpc, char *error) |
485 | { | |
4a2b0876 RS |
486 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
487 | ||
1744ef90 RS |
488 | rpc_unset_autoreconnect(rpc); |
489 | ||
84004dbf | 490 | if (rpc->fd != -1) { |
6874f61e RS |
491 | #if defined(WIN32) |
492 | closesocket(rpc->fd); | |
493 | #else | |
84004dbf | 494 | close(rpc->fd); |
6874f61e | 495 | #endif |
84004dbf RS |
496 | } |
497 | rpc->fd = -1; | |
498 | ||
499 | rpc->is_connected = 0; | |
500 | ||
501 | rpc_error_all_pdus(rpc, error); | |
502 | ||
503 | return 0; | |
504 | } | |
485bc9b9 | 505 | |
1744ef90 RS |
506 | static void reconnect_cb(struct rpc_context *rpc, int status, void *data _U_, void *private_data) |
507 | { | |
4a2b0876 RS |
508 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
509 | ||
1744ef90 RS |
510 | if (status != RPC_STATUS_SUCCESS) { |
511 | rpc_error_all_pdus(rpc, "RPC ERROR: Failed to reconnect async"); | |
512 | return; | |
513 | } | |
514 | ||
515 | rpc->is_connected = 1; | |
b990de23 | 516 | rpc->connect_cb = NULL; |
1744ef90 RS |
517 | } |
518 | ||
519 | /* disconnect but do not error all PDUs, just move pdus in-flight back to the outqueue and reconnect */ | |
520 | static int rpc_reconnect_requeue(struct rpc_context *rpc) | |
b077fdeb RS |
521 | { |
522 | struct rpc_pdu *pdu; | |
523 | ||
4a2b0876 RS |
524 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
525 | ||
b077fdeb | 526 | if (rpc->fd != -1) { |
6874f61e RS |
527 | #if defined(WIN32) |
528 | closesocket(rpc->fd); | |
529 | #else | |
b077fdeb | 530 | close(rpc->fd); |
6874f61e | 531 | #endif |
b077fdeb RS |
532 | } |
533 | rpc->fd = -1; | |
534 | ||
535 | rpc->is_connected = 0; | |
536 | ||
537 | /* socket is closed so we will not get any replies to any commands | |
538 | * in flight. Move them all over from the waitpdu queue back to the out queue | |
539 | */ | |
540 | for (pdu=rpc->waitpdu; pdu; pdu=pdu->next) { | |
541 | SLIST_REMOVE(&rpc->waitpdu, pdu); | |
542 | SLIST_ADD(&rpc->outqueue, pdu); | |
1744ef90 RS |
543 | /* we have to re-send the whole pdu again */ |
544 | pdu->written = 0; | |
545 | } | |
546 | ||
547 | if (rpc->auto_reconnect != 0) { | |
548 | rpc->connect_cb = reconnect_cb; | |
549 | ||
550 | if (rpc_connect_sockaddr_async(rpc, &rpc->s) != 0) { | |
551 | rpc_error_all_pdus(rpc, "RPC ERROR: Failed to reconnect async"); | |
552 | return -1; | |
553 | } | |
b077fdeb RS |
554 | } |
555 | ||
556 | return 0; | |
557 | } | |
558 | ||
485bc9b9 RS |
559 | |
560 | int rpc_bind_udp(struct rpc_context *rpc, char *addr, int port) | |
561 | { | |
562 | struct addrinfo *ai = NULL; | |
563 | char service[6]; | |
564 | ||
4a2b0876 RS |
565 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
566 | ||
485bc9b9 RS |
567 | if (rpc->is_udp == 0) { |
568 | rpc_set_error(rpc, "Cant not bind UDP. Not UDP context"); | |
569 | return -1; | |
570 | } | |
571 | ||
6874f61e | 572 | sprintf(service, "%d", port); |
485bc9b9 RS |
573 | if (getaddrinfo(addr, service, NULL, &ai) != 0) { |
574 | rpc_set_error(rpc, "Invalid address:%s. " | |
575 | "Can not resolv into IPv4/v6 structure."); | |
576 | return -1; | |
577 | } | |
578 | ||
579 | switch(ai->ai_family) { | |
580 | case AF_INET: | |
581 | rpc->fd = socket(ai->ai_family, SOCK_DGRAM, 0); | |
582 | if (rpc->fd == -1) { | |
583 | rpc_set_error(rpc, "Failed to create UDP socket: %s", strerror(errno)); | |
584 | freeaddrinfo(ai); | |
585 | return -1; | |
586 | } | |
587 | ||
588 | if (bind(rpc->fd, (struct sockaddr *)ai->ai_addr, sizeof(struct sockaddr_in)) != 0) { | |
589 | rpc_set_error(rpc, "Failed to bind to UDP socket: %s",strerror(errno)); | |
590 | freeaddrinfo(ai); | |
591 | return -1; | |
592 | } | |
593 | break; | |
594 | default: | |
595 | rpc_set_error(rpc, "Can not handle UPD sockets of family %d yet", ai->ai_family); | |
596 | freeaddrinfo(ai); | |
597 | return -1; | |
598 | } | |
599 | ||
600 | freeaddrinfo(ai); | |
601 | ||
602 | return 0; | |
603 | } | |
604 | ||
5bf60dc6 RS |
605 | int rpc_set_udp_destination(struct rpc_context *rpc, char *addr, int port, int is_broadcast) |
606 | { | |
607 | struct addrinfo *ai = NULL; | |
608 | char service[6]; | |
609 | ||
4a2b0876 RS |
610 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
611 | ||
5bf60dc6 RS |
612 | if (rpc->is_udp == 0) { |
613 | rpc_set_error(rpc, "Can not set destination sockaddr. Not UDP context"); | |
614 | return -1; | |
615 | } | |
616 | ||
6874f61e | 617 | sprintf(service, "%d", port); |
5bf60dc6 RS |
618 | if (getaddrinfo(addr, service, NULL, &ai) != 0) { |
619 | rpc_set_error(rpc, "Invalid address:%s. " | |
620 | "Can not resolv into IPv4/v6 structure."); | |
621 | return -1; | |
622 | } | |
623 | ||
624 | if (rpc->udp_dest) { | |
625 | free(rpc->udp_dest); | |
626 | rpc->udp_dest = NULL; | |
627 | } | |
628 | rpc->udp_dest = malloc(ai->ai_addrlen); | |
629 | if (rpc->udp_dest == NULL) { | |
630 | rpc_set_error(rpc, "Out of memory. Failed to allocate sockaddr structure"); | |
be7f5933 | 631 | freeaddrinfo(ai); |
5bf60dc6 RS |
632 | return -1; |
633 | } | |
634 | memcpy(rpc->udp_dest, ai->ai_addr, ai->ai_addrlen); | |
635 | freeaddrinfo(ai); | |
636 | ||
637 | rpc->is_broadcast = is_broadcast; | |
bb4e9ed6 | 638 | setsockopt(rpc->fd, SOL_SOCKET, SO_BROADCAST, (char *)&is_broadcast, sizeof(is_broadcast)); |
5bf60dc6 RS |
639 | |
640 | return 0; | |
641 | } | |
c481da67 RS |
642 | |
643 | struct sockaddr *rpc_get_recv_sockaddr(struct rpc_context *rpc) | |
644 | { | |
4a2b0876 RS |
645 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
646 | ||
c481da67 RS |
647 | return (struct sockaddr *)&rpc->udp_src; |
648 | } | |
83aa785d RS |
649 | |
650 | int rpc_queue_length(struct rpc_context *rpc) | |
651 | { | |
652 | int i=0; | |
653 | struct rpc_pdu *pdu; | |
654 | ||
4a2b0876 RS |
655 | assert(rpc->magic == RPC_CONTEXT_MAGIC); |
656 | ||
83aa785d RS |
657 | for(pdu = rpc->outqueue; pdu; pdu = pdu->next) { |
658 | i++; | |
659 | } | |
660 | for(pdu = rpc->waitpdu; pdu; pdu = pdu->next) { | |
661 | i++; | |
662 | } | |
663 | return i; | |
664 | } |