trap signals for "-serial mon:stdio"
[qemu.git] / net / socket.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "config-host.h"
25
26 #include "net/net.h"
27 #include "clients.h"
28 #include "monitor/monitor.h"
29 #include "qemu-common.h"
30 #include "qemu/error-report.h"
31 #include "qemu/option.h"
32 #include "qemu/sockets.h"
33 #include "qemu/iov.h"
34
35 typedef struct NetSocketState {
36 NetClientState nc;
37 int listen_fd;
38 int fd;
39 int state; /* 0 = getting length, 1 = getting data */
40 unsigned int index;
41 unsigned int packet_len;
42 unsigned int send_index; /* number of bytes sent (only SOCK_STREAM) */
43 uint8_t buf[NET_BUFSIZE];
44 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
45 IOHandler *send_fn; /* differs between SOCK_STREAM/SOCK_DGRAM */
46 bool read_poll; /* waiting to receive data? */
47 bool write_poll; /* waiting to transmit data? */
48 } NetSocketState;
49
50 static void net_socket_accept(void *opaque);
51 static void net_socket_writable(void *opaque);
52
53 /* Only read packets from socket when peer can receive them */
54 static int net_socket_can_send(void *opaque)
55 {
56 NetSocketState *s = opaque;
57
58 return qemu_can_send_packet(&s->nc);
59 }
60
61 static void net_socket_update_fd_handler(NetSocketState *s)
62 {
63 qemu_set_fd_handler2(s->fd,
64 s->read_poll ? net_socket_can_send : NULL,
65 s->read_poll ? s->send_fn : NULL,
66 s->write_poll ? net_socket_writable : NULL,
67 s);
68 }
69
70 static void net_socket_read_poll(NetSocketState *s, bool enable)
71 {
72 s->read_poll = enable;
73 net_socket_update_fd_handler(s);
74 }
75
76 static void net_socket_write_poll(NetSocketState *s, bool enable)
77 {
78 s->write_poll = enable;
79 net_socket_update_fd_handler(s);
80 }
81
82 static void net_socket_writable(void *opaque)
83 {
84 NetSocketState *s = opaque;
85
86 net_socket_write_poll(s, false);
87
88 qemu_flush_queued_packets(&s->nc);
89 }
90
91 static ssize_t net_socket_receive(NetClientState *nc, const uint8_t *buf, size_t size)
92 {
93 NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
94 uint32_t len = htonl(size);
95 struct iovec iov[] = {
96 {
97 .iov_base = &len,
98 .iov_len = sizeof(len),
99 }, {
100 .iov_base = (void *)buf,
101 .iov_len = size,
102 },
103 };
104 size_t remaining;
105 ssize_t ret;
106
107 remaining = iov_size(iov, 2) - s->send_index;
108 ret = iov_send(s->fd, iov, 2, s->send_index, remaining);
109
110 if (ret == -1 && errno == EAGAIN) {
111 ret = 0; /* handled further down */
112 }
113 if (ret == -1) {
114 s->send_index = 0;
115 return -errno;
116 }
117 if (ret < (ssize_t)remaining) {
118 s->send_index += ret;
119 net_socket_write_poll(s, true);
120 return 0;
121 }
122 s->send_index = 0;
123 return size;
124 }
125
126 static ssize_t net_socket_receive_dgram(NetClientState *nc, const uint8_t *buf, size_t size)
127 {
128 NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
129 ssize_t ret;
130
131 do {
132 ret = qemu_sendto(s->fd, buf, size, 0,
133 (struct sockaddr *)&s->dgram_dst,
134 sizeof(s->dgram_dst));
135 } while (ret == -1 && errno == EINTR);
136
137 if (ret == -1 && errno == EAGAIN) {
138 net_socket_write_poll(s, true);
139 return 0;
140 }
141 return ret;
142 }
143
144 static void net_socket_send(void *opaque)
145 {
146 NetSocketState *s = opaque;
147 int size, err;
148 unsigned l;
149 uint8_t buf1[NET_BUFSIZE];
150 const uint8_t *buf;
151
152 size = qemu_recv(s->fd, buf1, sizeof(buf1), 0);
153 if (size < 0) {
154 err = socket_error();
155 if (err != EWOULDBLOCK)
156 goto eoc;
157 } else if (size == 0) {
158 /* end of connection */
159 eoc:
160 net_socket_read_poll(s, false);
161 net_socket_write_poll(s, false);
162 if (s->listen_fd != -1) {
163 qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s);
164 }
165 closesocket(s->fd);
166
167 s->fd = -1;
168 s->state = 0;
169 s->index = 0;
170 s->packet_len = 0;
171 s->nc.link_down = true;
172 memset(s->buf, 0, sizeof(s->buf));
173 memset(s->nc.info_str, 0, sizeof(s->nc.info_str));
174
175 return;
176 }
177 buf = buf1;
178 while (size > 0) {
179 /* reassemble a packet from the network */
180 switch(s->state) {
181 case 0:
182 l = 4 - s->index;
183 if (l > size)
184 l = size;
185 memcpy(s->buf + s->index, buf, l);
186 buf += l;
187 size -= l;
188 s->index += l;
189 if (s->index == 4) {
190 /* got length */
191 s->packet_len = ntohl(*(uint32_t *)s->buf);
192 s->index = 0;
193 s->state = 1;
194 }
195 break;
196 case 1:
197 l = s->packet_len - s->index;
198 if (l > size)
199 l = size;
200 if (s->index + l <= sizeof(s->buf)) {
201 memcpy(s->buf + s->index, buf, l);
202 } else {
203 fprintf(stderr, "serious error: oversized packet received,"
204 "connection terminated.\n");
205 s->state = 0;
206 goto eoc;
207 }
208
209 s->index += l;
210 buf += l;
211 size -= l;
212 if (s->index >= s->packet_len) {
213 qemu_send_packet(&s->nc, s->buf, s->packet_len);
214 s->index = 0;
215 s->state = 0;
216 }
217 break;
218 }
219 }
220 }
221
222 static void net_socket_send_dgram(void *opaque)
223 {
224 NetSocketState *s = opaque;
225 int size;
226
227 size = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
228 if (size < 0)
229 return;
230 if (size == 0) {
231 /* end of connection */
232 net_socket_read_poll(s, false);
233 net_socket_write_poll(s, false);
234 return;
235 }
236 qemu_send_packet(&s->nc, s->buf, size);
237 }
238
239 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr *localaddr)
240 {
241 struct ip_mreq imr;
242 int fd;
243 int val, ret;
244 #ifdef __OpenBSD__
245 unsigned char loop;
246 #else
247 int loop;
248 #endif
249
250 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
251 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) "
252 "does not contain a multicast address\n",
253 inet_ntoa(mcastaddr->sin_addr),
254 (int)ntohl(mcastaddr->sin_addr.s_addr));
255 return -1;
256
257 }
258 fd = qemu_socket(PF_INET, SOCK_DGRAM, 0);
259 if (fd < 0) {
260 perror("socket(PF_INET, SOCK_DGRAM)");
261 return -1;
262 }
263
264 val = 1;
265 ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
266 if (ret < 0) {
267 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
268 goto fail;
269 }
270
271 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
272 if (ret < 0) {
273 perror("bind");
274 goto fail;
275 }
276
277 /* Add host to multicast group */
278 imr.imr_multiaddr = mcastaddr->sin_addr;
279 if (localaddr) {
280 imr.imr_interface = *localaddr;
281 } else {
282 imr.imr_interface.s_addr = htonl(INADDR_ANY);
283 }
284
285 ret = qemu_setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
286 &imr, sizeof(struct ip_mreq));
287 if (ret < 0) {
288 perror("setsockopt(IP_ADD_MEMBERSHIP)");
289 goto fail;
290 }
291
292 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
293 loop = 1;
294 ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
295 &loop, sizeof(loop));
296 if (ret < 0) {
297 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
298 goto fail;
299 }
300
301 /* If a bind address is given, only send packets from that address */
302 if (localaddr != NULL) {
303 ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF,
304 localaddr, sizeof(*localaddr));
305 if (ret < 0) {
306 perror("setsockopt(IP_MULTICAST_IF)");
307 goto fail;
308 }
309 }
310
311 qemu_set_nonblock(fd);
312 return fd;
313 fail:
314 if (fd >= 0)
315 closesocket(fd);
316 return -1;
317 }
318
319 static void net_socket_cleanup(NetClientState *nc)
320 {
321 NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
322 if (s->fd != -1) {
323 net_socket_read_poll(s, false);
324 net_socket_write_poll(s, false);
325 close(s->fd);
326 s->fd = -1;
327 }
328 if (s->listen_fd != -1) {
329 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
330 closesocket(s->listen_fd);
331 s->listen_fd = -1;
332 }
333 }
334
335 static NetClientInfo net_dgram_socket_info = {
336 .type = NET_CLIENT_OPTIONS_KIND_SOCKET,
337 .size = sizeof(NetSocketState),
338 .receive = net_socket_receive_dgram,
339 .cleanup = net_socket_cleanup,
340 };
341
342 static NetSocketState *net_socket_fd_init_dgram(NetClientState *peer,
343 const char *model,
344 const char *name,
345 int fd, int is_connected)
346 {
347 struct sockaddr_in saddr;
348 int newfd;
349 socklen_t saddr_len;
350 NetClientState *nc;
351 NetSocketState *s;
352
353 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
354 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
355 * by ONLY ONE process: we must "clone" this dgram socket --jjo
356 */
357
358 if (is_connected) {
359 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
360 /* must be bound */
361 if (saddr.sin_addr.s_addr == 0) {
362 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, "
363 "cannot setup multicast dst addr\n", fd);
364 goto err;
365 }
366 /* clone dgram socket */
367 newfd = net_socket_mcast_create(&saddr, NULL);
368 if (newfd < 0) {
369 /* error already reported by net_socket_mcast_create() */
370 goto err;
371 }
372 /* clone newfd to fd, close newfd */
373 dup2(newfd, fd);
374 close(newfd);
375
376 } else {
377 fprintf(stderr,
378 "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
379 fd, strerror(errno));
380 goto err;
381 }
382 }
383
384 nc = qemu_new_net_client(&net_dgram_socket_info, peer, model, name);
385
386 snprintf(nc->info_str, sizeof(nc->info_str),
387 "socket: fd=%d (%s mcast=%s:%d)",
388 fd, is_connected ? "cloned" : "",
389 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
390
391 s = DO_UPCAST(NetSocketState, nc, nc);
392
393 s->fd = fd;
394 s->listen_fd = -1;
395 s->send_fn = net_socket_send_dgram;
396 net_socket_read_poll(s, true);
397
398 /* mcast: save bound address as dst */
399 if (is_connected) {
400 s->dgram_dst = saddr;
401 }
402
403 return s;
404
405 err:
406 closesocket(fd);
407 return NULL;
408 }
409
410 static void net_socket_connect(void *opaque)
411 {
412 NetSocketState *s = opaque;
413 s->send_fn = net_socket_send;
414 net_socket_read_poll(s, true);
415 }
416
417 static NetClientInfo net_socket_info = {
418 .type = NET_CLIENT_OPTIONS_KIND_SOCKET,
419 .size = sizeof(NetSocketState),
420 .receive = net_socket_receive,
421 .cleanup = net_socket_cleanup,
422 };
423
424 static NetSocketState *net_socket_fd_init_stream(NetClientState *peer,
425 const char *model,
426 const char *name,
427 int fd, int is_connected)
428 {
429 NetClientState *nc;
430 NetSocketState *s;
431
432 nc = qemu_new_net_client(&net_socket_info, peer, model, name);
433
434 snprintf(nc->info_str, sizeof(nc->info_str), "socket: fd=%d", fd);
435
436 s = DO_UPCAST(NetSocketState, nc, nc);
437
438 s->fd = fd;
439 s->listen_fd = -1;
440
441 /* Disable Nagle algorithm on TCP sockets to reduce latency */
442 socket_set_nodelay(fd);
443
444 if (is_connected) {
445 net_socket_connect(s);
446 } else {
447 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
448 }
449 return s;
450 }
451
452 static NetSocketState *net_socket_fd_init(NetClientState *peer,
453 const char *model, const char *name,
454 int fd, int is_connected)
455 {
456 int so_type = -1, optlen=sizeof(so_type);
457
458 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
459 (socklen_t *)&optlen)< 0) {
460 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n",
461 fd);
462 closesocket(fd);
463 return NULL;
464 }
465 switch(so_type) {
466 case SOCK_DGRAM:
467 return net_socket_fd_init_dgram(peer, model, name, fd, is_connected);
468 case SOCK_STREAM:
469 return net_socket_fd_init_stream(peer, model, name, fd, is_connected);
470 default:
471 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
472 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
473 return net_socket_fd_init_stream(peer, model, name, fd, is_connected);
474 }
475 return NULL;
476 }
477
478 static void net_socket_accept(void *opaque)
479 {
480 NetSocketState *s = opaque;
481 struct sockaddr_in saddr;
482 socklen_t len;
483 int fd;
484
485 for(;;) {
486 len = sizeof(saddr);
487 fd = qemu_accept(s->listen_fd, (struct sockaddr *)&saddr, &len);
488 if (fd < 0 && errno != EINTR) {
489 return;
490 } else if (fd >= 0) {
491 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
492 break;
493 }
494 }
495
496 s->fd = fd;
497 s->nc.link_down = false;
498 net_socket_connect(s);
499 snprintf(s->nc.info_str, sizeof(s->nc.info_str),
500 "socket: connection from %s:%d",
501 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
502 }
503
504 static int net_socket_listen_init(NetClientState *peer,
505 const char *model,
506 const char *name,
507 const char *host_str)
508 {
509 NetClientState *nc;
510 NetSocketState *s;
511 struct sockaddr_in saddr;
512 int fd, val, ret;
513
514 if (parse_host_port(&saddr, host_str) < 0)
515 return -1;
516
517 fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
518 if (fd < 0) {
519 perror("socket");
520 return -1;
521 }
522 qemu_set_nonblock(fd);
523
524 /* allow fast reuse */
525 val = 1;
526 qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
527
528 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
529 if (ret < 0) {
530 perror("bind");
531 closesocket(fd);
532 return -1;
533 }
534 ret = listen(fd, 0);
535 if (ret < 0) {
536 perror("listen");
537 closesocket(fd);
538 return -1;
539 }
540
541 nc = qemu_new_net_client(&net_socket_info, peer, model, name);
542 s = DO_UPCAST(NetSocketState, nc, nc);
543 s->fd = -1;
544 s->listen_fd = fd;
545 s->nc.link_down = true;
546
547 qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s);
548 return 0;
549 }
550
551 static int net_socket_connect_init(NetClientState *peer,
552 const char *model,
553 const char *name,
554 const char *host_str)
555 {
556 NetSocketState *s;
557 int fd, connected, ret, err;
558 struct sockaddr_in saddr;
559
560 if (parse_host_port(&saddr, host_str) < 0)
561 return -1;
562
563 fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
564 if (fd < 0) {
565 perror("socket");
566 return -1;
567 }
568 qemu_set_nonblock(fd);
569
570 connected = 0;
571 for(;;) {
572 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
573 if (ret < 0) {
574 err = socket_error();
575 if (err == EINTR || err == EWOULDBLOCK) {
576 } else if (err == EINPROGRESS) {
577 break;
578 #ifdef _WIN32
579 } else if (err == WSAEALREADY || err == WSAEINVAL) {
580 break;
581 #endif
582 } else {
583 perror("connect");
584 closesocket(fd);
585 return -1;
586 }
587 } else {
588 connected = 1;
589 break;
590 }
591 }
592 s = net_socket_fd_init(peer, model, name, fd, connected);
593 if (!s)
594 return -1;
595 snprintf(s->nc.info_str, sizeof(s->nc.info_str),
596 "socket: connect to %s:%d",
597 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
598 return 0;
599 }
600
601 static int net_socket_mcast_init(NetClientState *peer,
602 const char *model,
603 const char *name,
604 const char *host_str,
605 const char *localaddr_str)
606 {
607 NetSocketState *s;
608 int fd;
609 struct sockaddr_in saddr;
610 struct in_addr localaddr, *param_localaddr;
611
612 if (parse_host_port(&saddr, host_str) < 0)
613 return -1;
614
615 if (localaddr_str != NULL) {
616 if (inet_aton(localaddr_str, &localaddr) == 0)
617 return -1;
618 param_localaddr = &localaddr;
619 } else {
620 param_localaddr = NULL;
621 }
622
623 fd = net_socket_mcast_create(&saddr, param_localaddr);
624 if (fd < 0)
625 return -1;
626
627 s = net_socket_fd_init(peer, model, name, fd, 0);
628 if (!s)
629 return -1;
630
631 s->dgram_dst = saddr;
632
633 snprintf(s->nc.info_str, sizeof(s->nc.info_str),
634 "socket: mcast=%s:%d",
635 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
636 return 0;
637
638 }
639
640 static int net_socket_udp_init(NetClientState *peer,
641 const char *model,
642 const char *name,
643 const char *rhost,
644 const char *lhost)
645 {
646 NetSocketState *s;
647 int fd, val, ret;
648 struct sockaddr_in laddr, raddr;
649
650 if (parse_host_port(&laddr, lhost) < 0) {
651 return -1;
652 }
653
654 if (parse_host_port(&raddr, rhost) < 0) {
655 return -1;
656 }
657
658 fd = qemu_socket(PF_INET, SOCK_DGRAM, 0);
659 if (fd < 0) {
660 perror("socket(PF_INET, SOCK_DGRAM)");
661 return -1;
662 }
663 val = 1;
664 ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
665 &val, sizeof(val));
666 if (ret < 0) {
667 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
668 closesocket(fd);
669 return -1;
670 }
671 ret = bind(fd, (struct sockaddr *)&laddr, sizeof(laddr));
672 if (ret < 0) {
673 perror("bind");
674 closesocket(fd);
675 return -1;
676 }
677 qemu_set_nonblock(fd);
678
679 s = net_socket_fd_init(peer, model, name, fd, 0);
680 if (!s) {
681 return -1;
682 }
683
684 s->dgram_dst = raddr;
685
686 snprintf(s->nc.info_str, sizeof(s->nc.info_str),
687 "socket: udp=%s:%d",
688 inet_ntoa(raddr.sin_addr), ntohs(raddr.sin_port));
689 return 0;
690 }
691
692 int net_init_socket(const NetClientOptions *opts, const char *name,
693 NetClientState *peer)
694 {
695 const NetdevSocketOptions *sock;
696
697 assert(opts->kind == NET_CLIENT_OPTIONS_KIND_SOCKET);
698 sock = opts->socket;
699
700 if (sock->has_fd + sock->has_listen + sock->has_connect + sock->has_mcast +
701 sock->has_udp != 1) {
702 error_report("exactly one of fd=, listen=, connect=, mcast= or udp="
703 " is required");
704 return -1;
705 }
706
707 if (sock->has_localaddr && !sock->has_mcast && !sock->has_udp) {
708 error_report("localaddr= is only valid with mcast= or udp=");
709 return -1;
710 }
711
712 if (sock->has_fd) {
713 int fd;
714
715 fd = monitor_handle_fd_param(cur_mon, sock->fd);
716 if (fd == -1) {
717 return -1;
718 }
719 qemu_set_nonblock(fd);
720 if (!net_socket_fd_init(peer, "socket", name, fd, 1)) {
721 return -1;
722 }
723 return 0;
724 }
725
726 if (sock->has_listen) {
727 if (net_socket_listen_init(peer, "socket", name, sock->listen) == -1) {
728 return -1;
729 }
730 return 0;
731 }
732
733 if (sock->has_connect) {
734 if (net_socket_connect_init(peer, "socket", name, sock->connect) ==
735 -1) {
736 return -1;
737 }
738 return 0;
739 }
740
741 if (sock->has_mcast) {
742 /* if sock->localaddr is missing, it has been initialized to "all bits
743 * zero" */
744 if (net_socket_mcast_init(peer, "socket", name, sock->mcast,
745 sock->localaddr) == -1) {
746 return -1;
747 }
748 return 0;
749 }
750
751 assert(sock->has_udp);
752 if (!sock->has_localaddr) {
753 error_report("localaddr= is mandatory with udp=");
754 return -1;
755 }
756 if (net_socket_udp_init(peer, "socket", name, sock->udp, sock->localaddr) ==
757 -1) {
758 return -1;
759 }
760 return 0;
761 }