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Regenerate BIOS and add patches for -boot option
[qemu.git] / net.c
CommitLineData
63a01ef8
AL		 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 */
63a01ef8
AL		 24#include <unistd.h>
25#include <fcntl.h>
26#include <signal.h>
27#include <time.h>
28#include <errno.h>
29#include <sys/time.h>
30#include <zlib.h>
31
179a2c19 32/* Needed early for HOST_BSD etc. */
d40cdb10
BS		 33#include "config-host.h"
34
63a01ef8
AL		 35#ifndef _WIN32
36#include <sys/times.h>
37#include <sys/wait.h>
38#include <termios.h>
39#include <sys/mman.h>
40#include <sys/ioctl.h>
24646c7e 41#include <sys/resource.h>
63a01ef8
AL		 42#include <sys/socket.h>
43#include <netinet/in.h>
24646c7e
BS		 44#include <net/if.h>
45#ifdef __NetBSD__
46#include <net/if_tap.h>
47#endif
48#ifdef __linux__
49#include <linux/if_tun.h>
50#endif
51#include <arpa/inet.h>
63a01ef8
AL		 52#include <dirent.h>
53#include <netdb.h>
54#include <sys/select.h>
179a2c19 55#ifdef HOST_BSD
63a01ef8 56#include <sys/stat.h>
c5e97233 57#if defined(__FreeBSD__) || defined(__DragonFly__)
63a01ef8 58#include <libutil.h>
24646c7e
BS		 59#else
60#include <util.h>
63a01ef8
AL		 61#endif
62#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
63#include <freebsd/stdlib.h>
64#else
65#ifdef __linux__
63a01ef8
AL		 66#include <pty.h>
67#include <malloc.h>
68#include <linux/rtc.h>
69
70/* For the benefit of older linux systems which don't supply it,
71 we use a local copy of hpet.h. */
72/* #include <linux/hpet.h> */
73#include "hpet.h"
74
75#include <linux/ppdev.h>
76#include <linux/parport.h>
77#endif
78#ifdef __sun__
79#include <sys/stat.h>
80#include <sys/ethernet.h>
81#include <sys/sockio.h>
82#include <netinet/arp.h>
83#include <netinet/in.h>
84#include <netinet/in_systm.h>
85#include <netinet/ip.h>
86#include <netinet/ip_icmp.h> // must come after ip.h
87#include <netinet/udp.h>
88#include <netinet/tcp.h>
89#include <net/if.h>
90#include <syslog.h>
91#include <stropts.h>
92#endif
93#endif
94#endif
95
63a01ef8
AL		 96#if defined(__OpenBSD__)
97#include <util.h>
98#endif
99
100#if defined(CONFIG_VDE)
101#include <libvdeplug.h>
102#endif
103
104#ifdef _WIN32
49dc768d 105#include <windows.h>
63a01ef8
AL		 106#include <malloc.h>
107#include <sys/timeb.h>
108#include <mmsystem.h>
109#define getopt_long_only getopt_long
110#define memalign(align, size) malloc(size)
111#endif
112
511d2b14
BS		 113#include "qemu-common.h"
114#include "net.h"
115#include "monitor.h"
116#include "sysemu.h"
117#include "qemu-timer.h"
118#include "qemu-char.h"
119#include "audio/audio.h"
120#include "qemu_socket.h"
bb9ea79e 121#include "qemu-log.h"
511d2b14 122
d918f23e 123#include "slirp/libslirp.h"
511d2b14
BS		 124
125
63a01ef8
AL		 126static VLANState *first_vlan;
127
128/***********************************************************/
129/* network device redirectors */
130
131#if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
132static void hex_dump(FILE *f, const uint8_t *buf, int size)
133{
134 int len, i, j, c;
135
136 for(i=0;i<size;i+=16) {
137 len = size - i;
138 if (len > 16)
139 len = 16;
140 fprintf(f, "%08x ", i);
141 for(j=0;j<16;j++) {
142 if (j < len)
143 fprintf(f, " %02x", buf[i+j]);
144 else
145 fprintf(f, " ");
146 }
147 fprintf(f, " ");
148 for(j=0;j<len;j++) {
149 c = buf[i+j];
150 if (c < ' ' || c > '~')
151 c = '.';
152 fprintf(f, "%c", c);
153 }
154 fprintf(f, "\n");
155 }
156}
157#endif
158
159static int parse_macaddr(uint8_t *macaddr, const char *p)
160{
161 int i;
162 char *last_char;
163 long int offset;
164
165 errno = 0;
166 offset = strtol(p, &last_char, 0);
167 if (0 == errno && '\0' == *last_char &&
168 offset >= 0 && offset <= 0xFFFFFF) {
169 macaddr[3] = (offset & 0xFF0000) >> 16;
170 macaddr[4] = (offset & 0xFF00) >> 8;
171 macaddr[5] = offset & 0xFF;
172 return 0;
173 } else {
174 for(i = 0; i < 6; i++) {
175 macaddr[i] = strtol(p, (char **)&p, 16);
176 if (i == 5) {
177 if (*p != '\0')
178 return -1;
179 } else {
180 if (*p != ':' && *p != '-')
181 return -1;
182 p++;
183 }
184 }
185 return 0;
186 }
187
188 return -1;
189}
190
191static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
192{
193 const char *p, *p1;
194 int len;
195 p = *pp;
196 p1 = strchr(p, sep);
197 if (!p1)
198 return -1;
199 len = p1 - p;
200 p1++;
201 if (buf_size > 0) {
202 if (len > buf_size - 1)
203 len = buf_size - 1;
204 memcpy(buf, p, len);
205 buf[len] = '\0';
206 }
207 *pp = p1;
208 return 0;
209}
210
211int parse_host_src_port(struct sockaddr_in *haddr,
212 struct sockaddr_in *saddr,
213 const char *input_str)
214{
215 char *str = strdup(input_str);
216 char *host_str = str;
217 char *src_str;
218 const char *src_str2;
219 char *ptr;
220
221 /*
222 * Chop off any extra arguments at the end of the string which
223 * would start with a comma, then fill in the src port information
224 * if it was provided else use the "any address" and "any port".
225 */
226 if ((ptr = strchr(str,',')))
227 *ptr = '\0';
228
229 if ((src_str = strchr(input_str,'@'))) {
230 *src_str = '\0';
231 src_str++;
232 }
233
234 if (parse_host_port(haddr, host_str) < 0)
235 goto fail;
236
237 src_str2 = src_str;
238 if (!src_str || *src_str == '\0')
239 src_str2 = ":0";
240
241 if (parse_host_port(saddr, src_str2) < 0)
242 goto fail;
243
244 free(str);
245 return(0);
246
247fail:
248 free(str);
249 return -1;
250}
251
252int parse_host_port(struct sockaddr_in *saddr, const char *str)
253{
254 char buf[512];
255 struct hostent *he;
256 const char *p, *r;
257 int port;
258
259 p = str;
260 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
261 return -1;
262 saddr->sin_family = AF_INET;
263 if (buf[0] == '\0') {
264 saddr->sin_addr.s_addr = 0;
265 } else {
cd390083 266 if (qemu_isdigit(buf[0])) {
63a01ef8
AL		 267 if (!inet_aton(buf, &saddr->sin_addr))
268 return -1;
269 } else {
270 if ((he = gethostbyname(buf)) == NULL)
271 return - 1;
272 saddr->sin_addr = *(struct in_addr *)he->h_addr;
273 }
274 }
275 port = strtol(p, (char **)&r, 0);
276 if (r == p)
277 return -1;
278 saddr->sin_port = htons(port);
279 return 0;
280}
281
69d6451c
BS		 282#if !defined(_WIN32) && 0
283static int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
63a01ef8
AL		 284{
285 const char *p;
286 int len;
287
288 len = MIN(108, strlen(str));
289 p = strchr(str, ',');
290 if (p)
291 len = MIN(len, p - str);
292
293 memset(uaddr, 0, sizeof(*uaddr));
294
295 uaddr->sun_family = AF_UNIX;
296 memcpy(uaddr->sun_path, str, len);
297
298 return 0;
299}
300#endif
301
7cb7434b
AL		 302void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6])
303{
304 snprintf(vc->info_str, sizeof(vc->info_str),
4dda4063
AL		 305 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
306 vc->model,
7cb7434b
AL		 307 macaddr[0], macaddr[1], macaddr[2],
308 macaddr[3], macaddr[4], macaddr[5]);
309}
310
676cff29
AL		 311static char *assign_name(VLANClientState *vc1, const char *model)
312{
313 VLANState *vlan;
314 char buf[256];
315 int id = 0;
316
317 for (vlan = first_vlan; vlan; vlan = vlan->next) {
318 VLANClientState *vc;
319
320 for (vc = vlan->first_client; vc; vc = vc->next)
321 if (vc != vc1 && strcmp(vc->model, model) == 0)
322 id++;
323 }
324
325 snprintf(buf, sizeof(buf), "%s.%d", model, id);
326
327 return strdup(buf);
328}
329
63a01ef8 330VLANClientState *qemu_new_vlan_client(VLANState *vlan,
bf38c1a0 331 const char *model,
7a9f6e4a 332 const char *name,
cda9046b
MM		 333 NetCanReceive *can_receive,
334 NetReceive *receive,
335 NetReceiveIOV *receive_iov,
b946a153 336 NetCleanup *cleanup,
63a01ef8
AL		 337 void *opaque)
338{
339 VLANClientState *vc, **pvc;
340 vc = qemu_mallocz(sizeof(VLANClientState));
bf38c1a0 341 vc->model = strdup(model);
7a9f6e4a
AL		 342 if (name)
343 vc->name = strdup(name);
344 else
345 vc->name = assign_name(vc, model);
cda9046b
MM		 346 vc->can_receive = can_receive;
347 vc->receive = receive;
348 vc->receive_iov = receive_iov;
b946a153 349 vc->cleanup = cleanup;
63a01ef8
AL		 350 vc->opaque = opaque;
351 vc->vlan = vlan;
352
353 vc->next = NULL;
354 pvc = &vlan->first_client;
355 while (*pvc != NULL)
356 pvc = &(*pvc)->next;
357 *pvc = vc;
358 return vc;
359}
360
361void qemu_del_vlan_client(VLANClientState *vc)
362{
363 VLANClientState **pvc = &vc->vlan->first_client;
364
365 while (*pvc != NULL)
366 if (*pvc == vc) {
367 *pvc = vc->next;
b946a153
AL		 368 if (vc->cleanup) {
369 vc->cleanup(vc);
370 }
676cff29 371 free(vc->name);
bf38c1a0 372 free(vc->model);
dad35419 373 qemu_free(vc);
63a01ef8
AL		 374 break;
375 } else
376 pvc = &(*pvc)->next;
377}
378
8b13c4a7
AL		 379VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
380{
381 VLANClientState **pvc = &vlan->first_client;
382
383 while (*pvc != NULL)
384 if ((*pvc)->opaque == opaque)
385 return *pvc;
386 else
387 pvc = &(*pvc)->next;
388
389 return NULL;
390}
391
1a609520
JK		 392static VLANClientState *
393qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
394 const char *client_str)
395{
396 VLANState *vlan;
397 VLANClientState *vc;
398
399 vlan = qemu_find_vlan(vlan_id, 0);
400 if (!vlan) {
401 monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
402 return NULL;
403 }
404
405 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
406 if (!strcmp(vc->name, client_str)) {
407 break;
408 }
409 }
410 if (!vc) {
411 monitor_printf(mon, "can't find device %s on VLAN %d\n",
412 client_str, vlan_id);
413 }
414
415 return vc;
416}
417
2e1e0641 418int qemu_can_send_packet(VLANClientState *sender)
63a01ef8 419{
2e1e0641 420 VLANState *vlan = sender->vlan;
63a01ef8
AL		 421 VLANClientState *vc;
422
2e1e0641
MM		 423 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
424 if (vc == sender) {
425 continue;
426 }
427
cda9046b 428 /* no can_receive() handler, they can always receive */
e3f5ec2b 429 if (!vc->can_receive || vc->can_receive(vc)) {
2e1e0641 430 return 1;
63a01ef8
AL		 431 }
432 }
433 return 0;
434}
435
3e021d40 436static int
764a4d1d 437qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size)
63a01ef8 438{
63a01ef8 439 VLANClientState *vc;
3e021d40 440 int ret = -1;
63a01ef8 441
e94667b9
MM		 442 sender->vlan->delivering = 1;
443
764a4d1d 444 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
3e021d40
MM		 445 ssize_t len;
446
447 if (vc == sender) {
448 continue;
764a4d1d 449 }
3e021d40
MM		 450
451 if (vc->link_down) {
452 ret = size;
453 continue;
454 }
455
456 len = vc->receive(vc, buf, size);
457
458 ret = (ret >= 0) ? ret : len;
764a4d1d 459 }
3e021d40 460
e94667b9
MM		 461 sender->vlan->delivering = 0;
462
3e021d40 463 return ret;
764a4d1d
AL		 464}
465
8cad5516
MM		 466void qemu_purge_queued_packets(VLANClientState *vc)
467{
468 VLANPacket **pp = &vc->vlan->send_queue;
469
470 while (*pp != NULL) {
471 VLANPacket *packet = *pp;
472
473 if (packet->sender == vc) {
474 *pp = packet->next;
475 qemu_free(packet);
476 } else {
477 pp = &packet->next;
478 }
479 }
480}
481
f3b6c7fc 482void qemu_flush_queued_packets(VLANClientState *vc)
e94667b9
MM		 483{
484 VLANPacket *packet;
485
486 while ((packet = vc->vlan->send_queue) != NULL) {
f3b6c7fc
MM		 487 int ret;
488
e94667b9 489 vc->vlan->send_queue = packet->next;
f3b6c7fc
MM		 490
491 ret = qemu_deliver_packet(packet->sender, packet->data, packet->size);
492 if (ret == 0 && packet->sent_cb != NULL) {
493 packet->next = vc->vlan->send_queue;
494 vc->vlan->send_queue = packet;
495 break;
496 }
497
498 if (packet->sent_cb)
783527a9 499 packet->sent_cb(packet->sender, ret);
f3b6c7fc 500
e94667b9
MM		 501 qemu_free(packet);
502 }
503}
504
f3b6c7fc
MM		 505static void qemu_enqueue_packet(VLANClientState *sender,
506 const uint8_t *buf, int size,
507 NetPacketSent *sent_cb)
e94667b9
MM		 508{
509 VLANPacket *packet;
510
511 packet = qemu_malloc(sizeof(VLANPacket) + size);
512 packet->next = sender->vlan->send_queue;
513 packet->sender = sender;
514 packet->size = size;
f3b6c7fc 515 packet->sent_cb = sent_cb;
e94667b9
MM		 516 memcpy(packet->data, buf, size);
517 sender->vlan->send_queue = packet;
518}
519
f3b6c7fc
MM		 520ssize_t qemu_send_packet_async(VLANClientState *sender,
521 const uint8_t *buf, int size,
522 NetPacketSent *sent_cb)
764a4d1d 523{
f3b6c7fc 524 int ret;
764a4d1d 525
f3b6c7fc
MM		 526 if (sender->link_down) {
527 return size;
528 }
436e5e53 529
63a01ef8 530#ifdef DEBUG_NET
f3b6c7fc 531 printf("vlan %d send:\n", sender->vlan->id);
63a01ef8
AL		 532 hex_dump(stdout, buf, size);
533#endif
f3b6c7fc
MM		 534
535 if (sender->vlan->delivering) {
536 qemu_enqueue_packet(sender, buf, size, NULL);
537 return size;
538 }
539
540 ret = qemu_deliver_packet(sender, buf, size);
541 if (ret == 0 && sent_cb != NULL) {
542 qemu_enqueue_packet(sender, buf, size, sent_cb);
543 return 0;
63a01ef8 544 }
e94667b9 545
f3b6c7fc
MM		 546 qemu_flush_queued_packets(sender);
547
548 return ret;
549}
550
551void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
552{
553 qemu_send_packet_async(vc, buf, size, NULL);
63a01ef8
AL		 554}
555
fbe78f4f
AL		 556static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
557 int iovcnt)
558{
559 uint8_t buffer[4096];
560 size_t offset = 0;
561 int i;
562
563 for (i = 0; i < iovcnt; i++) {
564 size_t len;
565
566 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
567 memcpy(buffer + offset, iov[i].iov_base, len);
568 offset += len;
569 }
570
f3b6c7fc 571 return vc->receive(vc, buffer, offset);
fbe78f4f
AL		 572}
573
e0e7877a
AL		 574static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
575{
576 size_t offset = 0;
577 int i;
578
579 for (i = 0; i < iovcnt; i++)
580 offset += iov[i].iov_len;
581 return offset;
582}
583
e94667b9
MM		 584static int qemu_deliver_packet_iov(VLANClientState *sender,
585 const struct iovec *iov, int iovcnt)
fbe78f4f 586{
fbe78f4f 587 VLANClientState *vc;
e94667b9
MM		 588 int ret = -1;
589
590 sender->vlan->delivering = 1;
591
592 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
593 ssize_t len;
594
595 if (vc == sender) {
596 continue;
597 }
598
599 if (vc->link_down) {
600 ret = calc_iov_length(iov, iovcnt);
601 continue;
602 }
603
604 if (vc->receive_iov) {
605 len = vc->receive_iov(vc, iov, iovcnt);
606 } else {
607 len = vc_sendv_compat(vc, iov, iovcnt);
608 }
609
610 ret = (ret >= 0) ? ret : len;
611 }
612
613 sender->vlan->delivering = 0;
614
615 return ret;
616}
617
618static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
f3b6c7fc
MM		 619 const struct iovec *iov, int iovcnt,
620 NetPacketSent *sent_cb)
e94667b9 621{
c27ff608 622 VLANPacket *packet;
e94667b9 623 size_t max_len = 0;
c27ff608 624 int i;
fbe78f4f 625
e94667b9 626 max_len = calc_iov_length(iov, iovcnt);
e0e7877a 627
e94667b9
MM		 628 packet = qemu_malloc(sizeof(VLANPacket) + max_len);
629 packet->next = sender->vlan->send_queue;
630 packet->sender = sender;
f3b6c7fc 631 packet->sent_cb = sent_cb;
e94667b9 632 packet->size = 0;
c27ff608 633
e94667b9
MM		 634 for (i = 0; i < iovcnt; i++) {
635 size_t len = iov[i].iov_len;
c27ff608 636
e94667b9
MM		 637 memcpy(packet->data + packet->size, iov[i].iov_base, len);
638 packet->size += len;
639 }
fbe78f4f 640
e94667b9 641 sender->vlan->send_queue = packet;
fbe78f4f 642
e94667b9
MM		 643 return packet->size;
644}
fbe78f4f 645
f3b6c7fc
MM		 646ssize_t qemu_sendv_packet_async(VLANClientState *sender,
647 const struct iovec *iov, int iovcnt,
648 NetPacketSent *sent_cb)
e94667b9
MM		 649{
650 int ret;
651
652 if (sender->link_down) {
653 return calc_iov_length(iov, iovcnt);
654 }
655
656 if (sender->vlan->delivering) {
f3b6c7fc 657 return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL);
fbe78f4f
AL		 658 }
659
e94667b9 660 ret = qemu_deliver_packet_iov(sender, iov, iovcnt);
f3b6c7fc
MM		 661 if (ret == 0 && sent_cb != NULL) {
662 qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb);
663 return 0;
664 }
e94667b9
MM		 665
666 qemu_flush_queued_packets(sender);
667
668 return ret;
fbe78f4f
AL		 669}
670
f3b6c7fc
MM		 671ssize_t
672qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
673{
674 return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
675}
676
10ae5a7a
JK		 677static void config_error(Monitor *mon, const char *fmt, ...)
678{
679 va_list ap;
680
681 va_start(ap, fmt);
682 if (mon) {
683 monitor_vprintf(mon, fmt, ap);
684 } else {
685 fprintf(stderr, "qemu: ");
686 vfprintf(stderr, fmt, ap);
687 exit(1);
688 }
689 va_end(ap);
690}
691
63a01ef8
AL		 692#if defined(CONFIG_SLIRP)
693
694/* slirp network adapter */
695
c92ef6a2
JK		 696#define SLIRP_CFG_HOSTFWD 1
697#define SLIRP_CFG_LEGACY 2
ad196a9d 698
b8e8af38
JK		 699struct slirp_config_str {
700 struct slirp_config_str *next;
ad196a9d
JK		 701 int flags;
702 char str[1024];
c92ef6a2 703 int legacy_format;
b8e8af38
JK		 704};
705
9f8bd042 706typedef struct SlirpState {
b1c99fcd 707 TAILQ_ENTRY(SlirpState) entry;
9f8bd042
JK		 708 VLANClientState *vc;
709 Slirp *slirp;
28432466
JK		 710#ifndef _WIN32
711 char smb_dir[128];
712#endif
9f8bd042
JK		 713} SlirpState;
714
ad196a9d
JK		 715static struct slirp_config_str *slirp_configs;
716const char *legacy_tftp_prefix;
717const char *legacy_bootp_filename;
b1c99fcd
JK		 718static TAILQ_HEAD(slirp_stacks, SlirpState) slirp_stacks =
719 TAILQ_HEAD_INITIALIZER(slirp_stacks);
63a01ef8 720
9f8bd042 721static void slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str,
3c6a0580 722 int legacy_format);
9f8bd042 723static void slirp_guestfwd(SlirpState *s, Monitor *mon, const char *config_str,
c92ef6a2 724 int legacy_format);
ad196a9d 725
c5b76b38 726#ifndef _WIN32
ad196a9d
JK		 727static const char *legacy_smb_export;
728
492efabd 729static void slirp_smb(SlirpState *s, Monitor *mon, const char *exported_dir,
9f8bd042 730 struct in_addr vserver_addr);
28432466
JK		 731static void slirp_smb_cleanup(SlirpState *s);
732#else
733static inline void slirp_smb_cleanup(SlirpState *s) { }
c5b76b38 734#endif
b8e8af38 735
9f8bd042 736int slirp_can_output(void *opaque)
63a01ef8 737{
9f8bd042
JK		 738 SlirpState *s = opaque;
739
740 return qemu_can_send_packet(s->vc);
63a01ef8
AL		 741}
742
9f8bd042 743void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len)
63a01ef8 744{
9f8bd042
JK		 745 SlirpState *s = opaque;
746
63a01ef8
AL		 747#ifdef DEBUG_SLIRP
748 printf("slirp output:\n");
749 hex_dump(stdout, pkt, pkt_len);
750#endif
9f8bd042 751 qemu_send_packet(s->vc, pkt, pkt_len);
63a01ef8
AL		 752}
753
4f1c942b 754static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 755{
9f8bd042
JK		 756 SlirpState *s = vc->opaque;
757
63a01ef8
AL		 758#ifdef DEBUG_SLIRP
759 printf("slirp input:\n");
760 hex_dump(stdout, buf, size);
761#endif
9f8bd042 762 slirp_input(s->slirp, buf, size);
4f1c942b 763 return size;
63a01ef8
AL		 764}
765
8d6249a7
AL		 766static void net_slirp_cleanup(VLANClientState *vc)
767{
ad0d8c4c
JK		 768 SlirpState *s = vc->opaque;
769
770 slirp_cleanup(s->slirp);
28432466 771 slirp_smb_cleanup(s);
b1c99fcd 772 TAILQ_REMOVE(&slirp_stacks, s, entry);
ad0d8c4c 773 qemu_free(s);
8d6249a7
AL		 774}
775
ad196a9d 776static int net_slirp_init(Monitor *mon, VLANState *vlan, const char *model,
c92ef6a2
JK		 777 const char *name, int restricted,
778 const char *vnetwork, const char *vhost,
779 const char *vhostname, const char *tftp_export,
780 const char *bootfile, const char *vdhcp_start,
781 const char *vnameserver, const char *smb_export,
782 const char *vsmbserver)
63a01ef8 783{
ad0d8c4c
JK		 784 /* default settings according to historic slirp */
785 struct in_addr net = { .s_addr = htonl(0x0a000000) }; /* 10.0.0.0 */
786 struct in_addr mask = { .s_addr = htonl(0xff000000) }; /* 255.0.0.0 */
787 struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */
788 struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */
789 struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */
c92ef6a2 790#ifndef _WIN32
ad0d8c4c 791 struct in_addr smbsrv = { .s_addr = 0 };
c92ef6a2 792#endif
ad0d8c4c
JK		 793 SlirpState *s;
794 char buf[20];
795 uint32_t addr;
796 int shift;
797 char *end;
798
799 if (!tftp_export) {
800 tftp_export = legacy_tftp_prefix;
801 }
802 if (!bootfile) {
803 bootfile = legacy_bootp_filename;
804 }
c92ef6a2 805
ad0d8c4c
JK		 806 if (vnetwork) {
807 if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) {
808 if (!inet_aton(vnetwork, &net)) {
809 return -1;
810 }
811 addr = ntohl(net.s_addr);
812 if (!(addr & 0x80000000)) {
813 mask.s_addr = htonl(0xff000000); /* class A */
814 } else if ((addr & 0xfff00000) == 0xac100000) {
815 mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */
816 } else if ((addr & 0xc0000000) == 0x80000000) {
817 mask.s_addr = htonl(0xffff0000); /* class B */
818 } else if ((addr & 0xffff0000) == 0xc0a80000) {
819 mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */
820 } else if ((addr & 0xffff0000) == 0xc6120000) {
821 mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */
822 } else if ((addr & 0xe0000000) == 0xe0000000) {
823 mask.s_addr = htonl(0xffffff00); /* class C */
c92ef6a2 824 } else {
ad0d8c4c
JK		 825 mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */
826 }
827 } else {
828 if (!inet_aton(buf, &net)) {
829 return -1;
830 }
831 shift = strtol(vnetwork, &end, 10);
832 if (*end != '\0') {
833 if (!inet_aton(vnetwork, &mask)) {
c92ef6a2 834 return -1;
c92ef6a2 835 }
ad0d8c4c
JK		 836 } else if (shift < 4 || shift > 32) {
837 return -1;
838 } else {
839 mask.s_addr = htonl(0xffffffff << (32 - shift));
c92ef6a2 840 }
c92ef6a2 841 }
ad0d8c4c
JK		 842 net.s_addr &= mask.s_addr;
843 host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr);
844 dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr);
845 dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr);
846 }
c92ef6a2 847
ad0d8c4c
JK		 848 if (vhost && !inet_aton(vhost, &host)) {
849 return -1;
850 }
851 if ((host.s_addr & mask.s_addr) != net.s_addr) {
852 return -1;
853 }
c92ef6a2 854
ad0d8c4c
JK		 855 if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) {
856 return -1;
857 }
858 if ((dhcp.s_addr & mask.s_addr) != net.s_addr ||
859 dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) {
860 return -1;
861 }
c92ef6a2 862
ad0d8c4c
JK		 863 if (vnameserver && !inet_aton(vnameserver, &dns)) {
864 return -1;
865 }
866 if ((dns.s_addr & mask.s_addr) != net.s_addr ||
867 dns.s_addr == host.s_addr) {
868 return -1;
869 }
c92ef6a2
JK		 870
871#ifndef _WIN32
ad0d8c4c
JK		 872 if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) {
873 return -1;
874 }
c92ef6a2
JK		 875#endif
876
ad0d8c4c
JK		 877 s = qemu_mallocz(sizeof(SlirpState));
878 s->slirp = slirp_init(restricted, net, mask, host, vhostname,
879 tftp_export, bootfile, dhcp, dns, s);
b1c99fcd 880 TAILQ_INSERT_TAIL(&slirp_stacks, s, entry);
b8e8af38 881
ad0d8c4c
JK		 882 while (slirp_configs) {
883 struct slirp_config_str *config = slirp_configs;
b8e8af38 884
ad0d8c4c
JK		 885 if (config->flags & SLIRP_CFG_HOSTFWD) {
886 slirp_hostfwd(s, mon, config->str,
887 config->flags & SLIRP_CFG_LEGACY);
888 } else {
889 slirp_guestfwd(s, mon, config->str,
890 config->flags & SLIRP_CFG_LEGACY);
b8e8af38 891 }
ad0d8c4c
JK		 892 slirp_configs = config->next;
893 qemu_free(config);
894 }
b8e8af38 895#ifndef _WIN32
ad0d8c4c
JK		 896 if (!smb_export) {
897 smb_export = legacy_smb_export;
898 }
899 if (smb_export) {
492efabd 900 slirp_smb(s, mon, smb_export, smbsrv);
63a01ef8 901 }
ad0d8c4c 902#endif
b8e8af38 903
9f8bd042
JK		 904 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive, NULL,
905 net_slirp_cleanup, s);
fc57bc57
JK		 906 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
907 "net=%s, restricted=%c", inet_ntoa(net), restricted ? 'y' : 'n');
63a01ef8
AL		 908 return 0;
909}
910
f13b572c
JK		 911static SlirpState *slirp_lookup(Monitor *mon, const char *vlan,
912 const char *stack)
913{
914 VLANClientState *vc;
915
916 if (vlan) {
917 vc = qemu_find_vlan_client_by_name(mon, strtol(vlan, NULL, 0), stack);
918 if (!vc) {
919 return NULL;
920 }
921 if (strcmp(vc->model, "user")) {
922 monitor_printf(mon, "invalid device specified\n");
923 return NULL;
924 }
925 return vc->opaque;
926 } else {
927 if (TAILQ_EMPTY(&slirp_stacks)) {
928 monitor_printf(mon, "user mode network stack not in use\n");
929 return NULL;
930 }
931 return TAILQ_FIRST(&slirp_stacks);
932 }
933}
934
935void net_slirp_hostfwd_remove(Monitor *mon, const char *arg1,
936 const char *arg2, const char *arg3)
c1261d8d 937{
3c6a0580 938 struct in_addr host_addr = { .s_addr = INADDR_ANY };
c1261d8d
AG		 939 int host_port;
940 char buf[256] = "";
f13b572c
JK		 941 const char *src_str, *p;
942 SlirpState *s;
c1261d8d 943 int is_udp = 0;
9c12a6f2 944 int err;
c1261d8d 945
f13b572c
JK		 946 if (arg2) {
947 s = slirp_lookup(mon, arg1, arg2);
948 src_str = arg3;
949 } else {
950 s = slirp_lookup(mon, NULL, NULL);
951 src_str = arg1;
952 }
953 if (!s) {
c1261d8d 954 return;
f3546deb 955 }
c1261d8d 956
3c6a0580 957 if (!src_str || !src_str[0])
c1261d8d
AG		 958 goto fail_syntax;
959
f13b572c 960 p = src_str;
c1261d8d
AG		 961 get_str_sep(buf, sizeof(buf), &p, ':');
962
963 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
964 is_udp = 0;
965 } else if (!strcmp(buf, "udp")) {
966 is_udp = 1;
967 } else {
968 goto fail_syntax;
969 }
970
3c6a0580
JK		 971 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
972 goto fail_syntax;
973 }
974 if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) {
975 goto fail_syntax;
976 }
977
c1261d8d
AG		 978 host_port = atoi(p);
979
b1c99fcd 980 err = slirp_remove_hostfwd(TAILQ_FIRST(&slirp_stacks)->slirp, is_udp,
9f8bd042 981 host_addr, host_port);
c1261d8d 982
9c12a6f2
JK		 983 monitor_printf(mon, "host forwarding rule for %s %s\n", src_str,
984 err ? "removed" : "not found");
c1261d8d
AG		 985 return;
986
987 fail_syntax:
988 monitor_printf(mon, "invalid format\n");
989}
990
9f8bd042 991static void slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str,
3c6a0580 992 int legacy_format)
63a01ef8 993{
3c6a0580 994 struct in_addr host_addr = { .s_addr = INADDR_ANY };
c92ef6a2 995 struct in_addr guest_addr = { .s_addr = 0 };
63a01ef8 996 int host_port, guest_port;
b8e8af38 997 const char *p;
c92ef6a2 998 char buf[256];
b8e8af38 999 int is_udp;
c92ef6a2 1000 char *end;
1c6ed9f3 1001
63a01ef8 1002 p = redir_str;
f13b572c 1003 if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
d4ebe193 1004 goto fail_syntax;
b8e8af38 1005 }
d4ebe193 1006 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
63a01ef8
AL		 1007 is_udp = 0;
1008 } else if (!strcmp(buf, "udp")) {
1009 is_udp = 1;
1010 } else {
d4ebe193 1011 goto fail_syntax;
63a01ef8
AL		 1012 }
1013
3c6a0580
JK		 1014 if (!legacy_format) {
1015 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
1016 goto fail_syntax;
1017 }
1018 if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) {
1019 goto fail_syntax;
1020 }
1021 }
1022
1023 if (get_str_sep(buf, sizeof(buf), &p, legacy_format ? ':' : '-') < 0) {
d4ebe193 1024 goto fail_syntax;
b8e8af38 1025 }
c92ef6a2
JK		 1026 host_port = strtol(buf, &end, 0);
1027 if (*end != '\0' || host_port < 1 || host_port > 65535) {
d4ebe193 1028 goto fail_syntax;
b8e8af38 1029 }
63a01ef8 1030
b8e8af38 1031 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
d4ebe193 1032 goto fail_syntax;
b8e8af38 1033 }
c92ef6a2 1034 if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) {
d4ebe193 1035 goto fail_syntax;
b8e8af38 1036 }
63a01ef8 1037
c92ef6a2
JK		 1038 guest_port = strtol(p, &end, 0);
1039 if (*end != '\0' || guest_port < 1 || guest_port > 65535) {
d4ebe193 1040 goto fail_syntax;
b8e8af38 1041 }
63a01ef8 1042
9f8bd042
JK		 1043 if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr,
1044 guest_port) < 0) {
c92ef6a2
JK		 1045 config_error(mon, "could not set up host forwarding rule '%s'\n",
1046 redir_str);
63a01ef8
AL		 1047 }
1048 return;
d4ebe193
AL		 1049
1050 fail_syntax:
c92ef6a2 1051 config_error(mon, "invalid host forwarding rule '%s'\n", redir_str);
63a01ef8
AL		 1052}
1053
f13b572c
JK		 1054void net_slirp_hostfwd_add(Monitor *mon, const char *arg1,
1055 const char *arg2, const char *arg3)
b8e8af38 1056{
f13b572c
JK		 1057 const char *redir_str;
1058 SlirpState *s;
1059
1060 if (arg2) {
1061 s = slirp_lookup(mon, arg1, arg2);
1062 redir_str = arg3;
1063 } else {
1064 s = slirp_lookup(mon, NULL, NULL);
1065 redir_str = arg1;
1066 }
1067 if (s) {
1068 slirp_hostfwd(s, mon, redir_str, 0);
b8e8af38
JK		 1069 }
1070
f3546deb
JK		 1071}
1072
1073void net_slirp_redir(const char *redir_str)
1074{
1075 struct slirp_config_str *config;
1076
b1c99fcd 1077 if (TAILQ_EMPTY(&slirp_stacks)) {
f3546deb
JK		 1078 config = qemu_malloc(sizeof(*config));
1079 pstrcpy(config->str, sizeof(config->str), redir_str);
3c6a0580 1080 config->flags = SLIRP_CFG_HOSTFWD | SLIRP_CFG_LEGACY;
f3546deb
JK		 1081 config->next = slirp_configs;
1082 slirp_configs = config;
b8e8af38
JK		 1083 return;
1084 }
1085
b1c99fcd 1086 slirp_hostfwd(TAILQ_FIRST(&slirp_stacks), NULL, redir_str, 1);
b8e8af38
JK		 1087}
1088
63a01ef8
AL		 1089#ifndef _WIN32
1090
63a01ef8 1091/* automatic user mode samba server configuration */
28432466 1092static void slirp_smb_cleanup(SlirpState *s)
63a01ef8 1093{
28432466 1094 char cmd[128];
09c18925 1095
28432466
JK		 1096 if (s->smb_dir[0] != '\0') {
1097 snprintf(cmd, sizeof(cmd), "rm -rf %s", s->smb_dir);
1098 system(cmd);
1099 s->smb_dir[0] = '\0';
1100 }
63a01ef8
AL		 1101}
1102
492efabd 1103static void slirp_smb(SlirpState* s, Monitor *mon, const char *exported_dir,
9f8bd042 1104 struct in_addr vserver_addr)
63a01ef8 1105{
28432466
JK		 1106 static int instance;
1107 char smb_conf[128];
1108 char smb_cmdline[128];
63a01ef8
AL		 1109 FILE *f;
1110
28432466
JK		 1111 snprintf(s->smb_dir, sizeof(s->smb_dir), "/tmp/qemu-smb.%ld-%d",
1112 (long)getpid(), instance++);
1113 if (mkdir(s->smb_dir, 0700) < 0) {
1114 config_error(mon, "could not create samba server dir '%s'\n",
1115 s->smb_dir);
492efabd 1116 return;
63a01ef8 1117 }
28432466 1118 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", s->smb_dir, "smb.conf");
63a01ef8
AL		 1119
1120 f = fopen(smb_conf, "w");
1121 if (!f) {
28432466 1122 slirp_smb_cleanup(s);
492efabd
JK		 1123 config_error(mon, "could not create samba server "
1124 "configuration file '%s'\n", smb_conf);
1125 return;
63a01ef8
AL		 1126 }
1127 fprintf(f,
1128 "[global]\n"
1129 "private dir=%s\n"
1130 "smb ports=0\n"
1131 "socket address=127.0.0.1\n"
1132 "pid directory=%s\n"
1133 "lock directory=%s\n"
1134 "log file=%s/log.smbd\n"
1135 "smb passwd file=%s/smbpasswd\n"
1136 "security = share\n"
1137 "[qemu]\n"
1138 "path=%s\n"
1139 "read only=no\n"
1140 "guest ok=yes\n",
28432466
JK		 1141 s->smb_dir,
1142 s->smb_dir,
1143 s->smb_dir,
1144 s->smb_dir,
1145 s->smb_dir,
63a01ef8
AL		 1146 exported_dir
1147 );
1148 fclose(f);
63a01ef8
AL		 1149
1150 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
1151 SMBD_COMMAND, smb_conf);
1152
9f8bd042 1153 if (slirp_add_exec(s->slirp, 0, smb_cmdline, vserver_addr, 139) < 0) {
28432466 1154 slirp_smb_cleanup(s);
492efabd 1155 config_error(mon, "conflicting/invalid smbserver address\n");
c92ef6a2 1156 }
63a01ef8
AL		 1157}
1158
ad196a9d 1159/* automatic user mode samba server configuration (legacy interface) */
b8e8af38
JK		 1160void net_slirp_smb(const char *exported_dir)
1161{
c92ef6a2
JK		 1162 struct in_addr vserver_addr = { .s_addr = 0 };
1163
ad196a9d 1164 if (legacy_smb_export) {
b8e8af38
JK		 1165 fprintf(stderr, "-smb given twice\n");
1166 exit(1);
1167 }
ad196a9d 1168 legacy_smb_export = exported_dir;
b1c99fcd 1169 if (!TAILQ_EMPTY(&slirp_stacks)) {
492efabd
JK		 1170 slirp_smb(TAILQ_FIRST(&slirp_stacks), NULL, exported_dir,
1171 vserver_addr);
b8e8af38
JK		 1172 }
1173}
1174
63a01ef8 1175#endif /* !defined(_WIN32) */
b8e8af38 1176
c92ef6a2 1177struct GuestFwd {
8ca9217d 1178 CharDriverState *hd;
c92ef6a2 1179 struct in_addr server;
8ca9217d 1180 int port;
9f8bd042 1181 Slirp *slirp;
511d2b14 1182};
8ca9217d 1183
c92ef6a2 1184static int guestfwd_can_read(void *opaque)
8ca9217d 1185{
c92ef6a2 1186 struct GuestFwd *fwd = opaque;
9f8bd042 1187 return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port);
8ca9217d
AL		 1188}
1189
c92ef6a2 1190static void guestfwd_read(void *opaque, const uint8_t *buf, int size)
8ca9217d 1191{
c92ef6a2 1192 struct GuestFwd *fwd = opaque;
9f8bd042 1193 slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size);
8ca9217d
AL		 1194}
1195
9f8bd042 1196static void slirp_guestfwd(SlirpState *s, Monitor *mon, const char *config_str,
c92ef6a2 1197 int legacy_format)
ad196a9d 1198{
c92ef6a2
JK		 1199 struct in_addr server = { .s_addr = 0 };
1200 struct GuestFwd *fwd;
1201 const char *p;
1202 char buf[128];
1203 char *end;
ad196a9d
JK		 1204 int port;
1205
c92ef6a2
JK		 1206 p = config_str;
1207 if (legacy_format) {
1208 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
1209 goto fail_syntax;
1210 }
1211 } else {
1212 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
1213 goto fail_syntax;
1214 }
1215 if (strcmp(buf, "tcp") && buf[0] != '\0') {
1216 goto fail_syntax;
1217 }
1218 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
1219 goto fail_syntax;
1220 }
1221 if (buf[0] != '\0' && !inet_aton(buf, &server)) {
1222 goto fail_syntax;
1223 }
1224 if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) {
1225 goto fail_syntax;
1226 }
1227 }
1228 port = strtol(buf, &end, 10);
1229 if (*end != '\0' || port < 1 || port > 65535) {
1230 goto fail_syntax;
ad196a9d 1231 }
ad196a9d 1232
c92ef6a2
JK		 1233 fwd = qemu_malloc(sizeof(struct GuestFwd));
1234 snprintf(buf, sizeof(buf), "guestfwd.tcp:%d", port);
1235 fwd->hd = qemu_chr_open(buf, p, NULL);
1236 if (!fwd->hd) {
1237 config_error(mon, "could not open guest forwarding device '%s'\n",
1238 buf);
1239 qemu_free(fwd);
ad196a9d
JK		 1240 return;
1241 }
c92ef6a2
JK		 1242 fwd->server = server;
1243 fwd->port = port;
9f8bd042 1244 fwd->slirp = s->slirp;
ad196a9d 1245
9f8bd042 1246 if (slirp_add_exec(s->slirp, 3, fwd->hd, server, port) < 0) {
c92ef6a2
JK		 1247 config_error(mon, "conflicting/invalid host:port in guest forwarding "
1248 "rule '%s'\n", config_str);
1249 qemu_free(fwd);
1250 return;
1251 }
1252 qemu_chr_add_handlers(fwd->hd, guestfwd_can_read, guestfwd_read,
1253 NULL, fwd);
ad196a9d 1254 return;
c92ef6a2
JK		 1255
1256 fail_syntax:
1257 config_error(mon, "invalid guest forwarding rule '%s'\n", config_str);
ad196a9d
JK		 1258}
1259
6dbe553f
JK		 1260void do_info_usernet(Monitor *mon)
1261{
b1c99fcd 1262 SlirpState *s;
9f8bd042 1263
b1c99fcd
JK		 1264 TAILQ_FOREACH(s, &slirp_stacks, entry) {
1265 monitor_printf(mon, "VLAN %d (%s):\n", s->vc->vlan->id, s->vc->name);
1266 slirp_connection_info(s->slirp, mon);
9f8bd042 1267 }
6dbe553f
JK		 1268}
1269
63a01ef8
AL		 1270#endif /* CONFIG_SLIRP */
1271
1272#if !defined(_WIN32)
1273
1274typedef struct TAPState {
1275 VLANClientState *vc;
1276 int fd;
1277 char down_script[1024];
973cbd37 1278 char down_script_arg[128];
5b01e886 1279 uint8_t buf[4096];
b664e367 1280 unsigned int read_poll : 1;
1f7babf6 1281 unsigned int write_poll : 1;
63a01ef8
AL		 1282} TAPState;
1283
b946a153
AL		 1284static int launch_script(const char *setup_script, const char *ifname, int fd);
1285
b664e367
MM		 1286static int tap_can_send(void *opaque);
1287static void tap_send(void *opaque);
1f7babf6 1288static void tap_writable(void *opaque);
b664e367
MM		 1289
1290static void tap_update_fd_handler(TAPState *s)
1291{
1292 qemu_set_fd_handler2(s->fd,
1293 s->read_poll ? tap_can_send : NULL,
1294 s->read_poll ? tap_send : NULL,
1f7babf6 1295 s->write_poll ? tap_writable : NULL,
b664e367
MM		 1296 s);
1297}
1298
1299static void tap_read_poll(TAPState *s, int enable)
1300{
1301 s->read_poll = !!enable;
1302 tap_update_fd_handler(s);
1303}
1304
1f7babf6
MM		 1305static void tap_write_poll(TAPState *s, int enable)
1306{
1307 s->write_poll = !!enable;
1308 tap_update_fd_handler(s);
1309}
1310
1311static void tap_writable(void *opaque)
1312{
1313 TAPState *s = opaque;
1314
1315 tap_write_poll(s, 0);
1316
1317 qemu_flush_queued_packets(s->vc);
1318}
1319
e3f5ec2b 1320static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov,
b535b7b2
AL		 1321 int iovcnt)
1322{
e3f5ec2b 1323 TAPState *s = vc->opaque;
b535b7b2
AL		 1324 ssize_t len;
1325
1326 do {
1327 len = writev(s->fd, iov, iovcnt);
1f7babf6
MM		 1328 } while (len == -1 && errno == EINTR);
1329
1330 if (len == -1 && errno == EAGAIN) {
1331 tap_write_poll(s, 1);
1332 return 0;
1333 }
b535b7b2
AL		 1334
1335 return len;
1336}
b535b7b2 1337
4f1c942b 1338static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 1339{
e3f5ec2b 1340 TAPState *s = vc->opaque;
4f1c942b
MM		 1341 ssize_t len;
1342
1343 do {
1344 len = write(s->fd, buf, size);
1345 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
1346
1347 return len;
63a01ef8
AL		 1348}
1349
3471b757
MM		 1350static int tap_can_send(void *opaque)
1351{
1352 TAPState *s = opaque;
1353
1354 return qemu_can_send_packet(s->vc);
1355}
1356
63a01ef8 1357#ifdef __sun__
5a6d8815
MM		 1358static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1359{
63a01ef8
AL		 1360 struct strbuf sbuf;
1361 int f = 0;
5a6d8815
MM		 1362
1363 sbuf.maxlen = maxlen;
3f4cb3d3 1364 sbuf.buf = (char *)buf;
5a6d8815
MM		 1365
1366 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
1367}
63a01ef8 1368#else
5a6d8815
MM		 1369static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1370{
1371 return read(tapfd, buf, maxlen);
1372}
63a01ef8 1373#endif
5a6d8815 1374
783527a9 1375static void tap_send_completed(VLANClientState *vc, ssize_t len)
e19eb224
MM		 1376{
1377 TAPState *s = vc->opaque;
b664e367 1378 tap_read_poll(s, 1);
e19eb224
MM		 1379}
1380
5a6d8815
MM		 1381static void tap_send(void *opaque)
1382{
1383 TAPState *s = opaque;
5a6d8815
MM		 1384 int size;
1385
e19eb224
MM		 1386 do {
1387 size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
1388 if (size <= 0) {
1389 break;
1390 }
1391
1392 size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed);
1393 if (size == 0) {
b664e367 1394 tap_read_poll(s, 0);
e19eb224
MM		 1395 }
1396 } while (size > 0);
63a01ef8
AL		 1397}
1398
0df0ff6d 1399#ifdef TUNSETSNDBUF
fc5b81d1
MM		 1400/* sndbuf should be set to a value lower than the tx queue
1401 * capacity of any destination network interface.
1402 * Ethernet NICs generally have txqueuelen=1000, so 1Mb is
1403 * a good default, given a 1500 byte MTU.
1404 */
1405#define TAP_DEFAULT_SNDBUF 1024*1024
1406
1407static void tap_set_sndbuf(TAPState *s, const char *sndbuf_str, Monitor *mon)
1408{
1409 int sndbuf = TAP_DEFAULT_SNDBUF;
1410
1411 if (sndbuf_str) {
1412 sndbuf = atoi(sndbuf_str);
1413 }
1414
1415 if (!sndbuf) {
1416 sndbuf = INT_MAX;
1417 }
1418
d026fb6d 1419 if (ioctl(s->fd, TUNSETSNDBUF, &sndbuf) == -1 && sndbuf_str) {
0df0ff6d
MM		 1420 config_error(mon, "TUNSETSNDBUF ioctl failed: %s\n",
1421 strerror(errno));
1422 }
fc5b81d1 1423}
0df0ff6d 1424#else
fc5b81d1
MM		 1425static void tap_set_sndbuf(TAPState *s, const char *sndbuf_str, Monitor *mon)
1426{
1427 if (sndbuf_str) {
1428 config_error(mon, "No '-net tap,sndbuf=<nbytes>' support available\n");
1429 }
0df0ff6d 1430}
fc5b81d1 1431#endif /* TUNSETSNDBUF */
0df0ff6d 1432
b946a153
AL		 1433static void tap_cleanup(VLANClientState *vc)
1434{
1435 TAPState *s = vc->opaque;
1436
b9adce2c
MM		 1437 qemu_purge_queued_packets(vc);
1438
b946a153
AL		 1439 if (s->down_script[0])
1440 launch_script(s->down_script, s->down_script_arg, s->fd);
1441
b664e367 1442 tap_read_poll(s, 0);
1f7babf6 1443 tap_write_poll(s, 0);
b946a153
AL		 1444 close(s->fd);
1445 qemu_free(s);
1446}
1447
63a01ef8
AL		 1448/* fd support */
1449
7a9f6e4a
AL		 1450static TAPState *net_tap_fd_init(VLANState *vlan,
1451 const char *model,
1452 const char *name,
1453 int fd)
63a01ef8
AL		 1454{
1455 TAPState *s;
1456
1457 s = qemu_mallocz(sizeof(TAPState));
63a01ef8 1458 s->fd = fd;
463af534
MM		 1459 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
1460 tap_receive_iov, tap_cleanup, s);
b664e367 1461 tap_read_poll(s, 1);
7cb7434b 1462 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
63a01ef8
AL		 1463 return s;
1464}
1465
179a2c19 1466#if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
63a01ef8
AL		 1467static int tap_open(char *ifname, int ifname_size)
1468{
1469 int fd;
1470 char *dev;
1471 struct stat s;
1472
1473 TFR(fd = open("/dev/tap", O_RDWR));
1474 if (fd < 0) {
1475 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1476 return -1;
1477 }
1478
1479 fstat(fd, &s);
1480 dev = devname(s.st_rdev, S_IFCHR);
1481 pstrcpy(ifname, ifname_size, dev);
1482
1483 fcntl(fd, F_SETFL, O_NONBLOCK);
1484 return fd;
1485}
1486#elif defined(__sun__)
1487#define TUNNEWPPA (('T'<<16) | 0x0001)
1488/*
1489 * Allocate TAP device, returns opened fd.
1490 * Stores dev name in the first arg(must be large enough).
1491 */
3f4cb3d3 1492static int tap_alloc(char *dev, size_t dev_size)
63a01ef8
AL		 1493{
1494 int tap_fd, if_fd, ppa = -1;
1495 static int ip_fd = 0;
1496 char *ptr;
1497
1498 static int arp_fd = 0;
1499 int ip_muxid, arp_muxid;
1500 struct strioctl strioc_if, strioc_ppa;
1501 int link_type = I_PLINK;;
1502 struct lifreq ifr;
1503 char actual_name[32] = "";
1504
1505 memset(&ifr, 0x0, sizeof(ifr));
1506
1507 if( *dev ){
1508 ptr = dev;
47398b9c 1509 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
63a01ef8
AL		 1510 ppa = atoi(ptr);
1511 }
1512
1513 /* Check if IP device was opened */
1514 if( ip_fd )
1515 close(ip_fd);
1516
1517 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1518 if (ip_fd < 0) {
1519 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1520 return -1;
1521 }
1522
1523 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1524 if (tap_fd < 0) {
1525 syslog(LOG_ERR, "Can't open /dev/tap");
1526 return -1;
1527 }
1528
1529 /* Assign a new PPA and get its unit number. */
1530 strioc_ppa.ic_cmd = TUNNEWPPA;
1531 strioc_ppa.ic_timout = 0;
1532 strioc_ppa.ic_len = sizeof(ppa);
1533 strioc_ppa.ic_dp = (char *)&ppa;
1534 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1535 syslog (LOG_ERR, "Can't assign new interface");
1536
1537 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1538 if (if_fd < 0) {
1539 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1540 return -1;
1541 }
1542 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1543 syslog(LOG_ERR, "Can't push IP module");
1544 return -1;
1545 }
1546
1547 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1548 syslog(LOG_ERR, "Can't get flags\n");
1549
1550 snprintf (actual_name, 32, "tap%d", ppa);
1551 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1552
1553 ifr.lifr_ppa = ppa;
1554 /* Assign ppa according to the unit number returned by tun device */
1555
1556 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1557 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1558 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1559 syslog (LOG_ERR, "Can't get flags\n");
1560 /* Push arp module to if_fd */
1561 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1562 syslog (LOG_ERR, "Can't push ARP module (2)");
1563
1564 /* Push arp module to ip_fd */
1565 if (ioctl (ip_fd, I_POP, NULL) < 0)
1566 syslog (LOG_ERR, "I_POP failed\n");
1567 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1568 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1569 /* Open arp_fd */
1570 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1571 if (arp_fd < 0)
1572 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1573
1574 /* Set ifname to arp */
1575 strioc_if.ic_cmd = SIOCSLIFNAME;
1576 strioc_if.ic_timout = 0;
1577 strioc_if.ic_len = sizeof(ifr);
1578 strioc_if.ic_dp = (char *)&ifr;
1579 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1580 syslog (LOG_ERR, "Can't set ifname to arp\n");
1581 }
1582
1583 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1584 syslog(LOG_ERR, "Can't link TAP device to IP");
1585 return -1;
1586 }
1587
1588 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1589 syslog (LOG_ERR, "Can't link TAP device to ARP");
1590
1591 close (if_fd);
1592
1593 memset(&ifr, 0x0, sizeof(ifr));
1594 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1595 ifr.lifr_ip_muxid = ip_muxid;
1596 ifr.lifr_arp_muxid = arp_muxid;
1597
1598 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1599 {
1600 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1601 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1602 syslog (LOG_ERR, "Can't set multiplexor id");
1603 }
1604
1605 snprintf(dev, dev_size, "tap%d", ppa);
1606 return tap_fd;
1607}
1608
1609static int tap_open(char *ifname, int ifname_size)
1610{
1611 char dev[10]="";
1612 int fd;
1613 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1614 fprintf(stderr, "Cannot allocate TAP device\n");
1615 return -1;
1616 }
1617 pstrcpy(ifname, ifname_size, dev);
1618 fcntl(fd, F_SETFL, O_NONBLOCK);
1619 return fd;
1620}
b29fe3ed 1621#elif defined (_AIX)
1622static int tap_open(char *ifname, int ifname_size)
1623{
1624 fprintf (stderr, "no tap on AIX\n");
1625 return -1;
1626}
63a01ef8
AL		 1627#else
1628static int tap_open(char *ifname, int ifname_size)
1629{
1630 struct ifreq ifr;
1631 int fd, ret;
1632
1633 TFR(fd = open("/dev/net/tun", O_RDWR));
1634 if (fd < 0) {
1635 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1636 return -1;
1637 }
1638 memset(&ifr, 0, sizeof(ifr));
1639 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1640 if (ifname[0] != '\0')
1641 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1642 else
1643 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1644 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1645 if (ret != 0) {
1646 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1647 close(fd);
1648 return -1;
1649 }
1650 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1651 fcntl(fd, F_SETFL, O_NONBLOCK);
1652 return fd;
1653}
1654#endif
1655
1656static int launch_script(const char *setup_script, const char *ifname, int fd)
1657{
7c3370d4 1658 sigset_t oldmask, mask;
63a01ef8
AL		 1659 int pid, status;
1660 char *args[3];
1661 char **parg;
1662
7c3370d4
JK		 1663 sigemptyset(&mask);
1664 sigaddset(&mask, SIGCHLD);
1665 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1666
1667 /* try to launch network script */
1668 pid = fork();
1669 if (pid == 0) {
1670 int open_max = sysconf(_SC_OPEN_MAX), i;
1671
1672 for (i = 0; i < open_max; i++) {
1673 if (i != STDIN_FILENO &&
1674 i != STDOUT_FILENO &&
1675 i != STDERR_FILENO &&
1676 i != fd) {
1677 close(i);
63a01ef8
AL		 1678 }
1679 }
7c3370d4
JK		 1680 parg = args;
1681 *parg++ = (char *)setup_script;
1682 *parg++ = (char *)ifname;
1683 *parg++ = NULL;
1684 execv(setup_script, args);
1685 _exit(1);
1686 } else if (pid > 0) {
1687 while (waitpid(pid, &status, 0) != pid) {
1688 /* loop */
1689 }
1690 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1691
1692 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1693 return 0;
1694 }
1695 }
1696 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1697 return -1;
63a01ef8
AL		 1698}
1699
4a77b25e
MM		 1700static TAPState *net_tap_init(VLANState *vlan, const char *model,
1701 const char *name, const char *ifname1,
1702 const char *setup_script, const char *down_script)
63a01ef8
AL		 1703{
1704 TAPState *s;
1705 int fd;
1706 char ifname[128];
1707
1708 if (ifname1 != NULL)
1709 pstrcpy(ifname, sizeof(ifname), ifname1);
1710 else
1711 ifname[0] = '\0';
1712 TFR(fd = tap_open(ifname, sizeof(ifname)));
1713 if (fd < 0)
4a77b25e 1714 return NULL;
63a01ef8
AL		 1715
1716 if (!setup_script || !strcmp(setup_script, "no"))
1717 setup_script = "";
4a77b25e
MM		 1718 if (setup_script[0] != '\0' &&
1719 launch_script(setup_script, ifname, fd)) {
1720 return NULL;
63a01ef8 1721 }
7a9f6e4a 1722 s = net_tap_fd_init(vlan, model, name, fd);
63a01ef8 1723 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
7cb7434b
AL		 1724 "ifname=%s,script=%s,downscript=%s",
1725 ifname, setup_script, down_script);
973cbd37 1726 if (down_script && strcmp(down_script, "no")) {
63a01ef8 1727 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
973cbd37
AL		 1728 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1729 }
4a77b25e 1730 return s;
63a01ef8
AL		 1731}
1732
1733#endif /* !_WIN32 */
1734
1735#if defined(CONFIG_VDE)
1736typedef struct VDEState {
1737 VLANClientState *vc;
1738 VDECONN *vde;
1739} VDEState;
1740
1741static void vde_to_qemu(void *opaque)
1742{
1743 VDEState *s = opaque;
1744 uint8_t buf[4096];
1745 int size;
1746
cc63bb0f 1747 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
63a01ef8
AL		 1748 if (size > 0) {
1749 qemu_send_packet(s->vc, buf, size);
1750 }
1751}
1752
4f1c942b 1753static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 1754{
e3f5ec2b 1755 VDEState *s = vc->opaque;
068daedd 1756 ssize_t ret;
4f1c942b
MM		 1757
1758 do {
1759 ret = vde_send(s->vde, (const char *)buf, size, 0);
1760 } while (ret < 0 && errno == EINTR);
1761
1762 return ret;
63a01ef8
AL		 1763}
1764
b946a153
AL		 1765static void vde_cleanup(VLANClientState *vc)
1766{
1767 VDEState *s = vc->opaque;
1768 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1769 vde_close(s->vde);
1770 qemu_free(s);
1771}
1772
7a9f6e4a
AL		 1773static int net_vde_init(VLANState *vlan, const char *model,
1774 const char *name, const char *sock,
bf38c1a0 1775 int port, const char *group, int mode)
63a01ef8
AL		 1776{
1777 VDEState *s;
1778 char *init_group = strlen(group) ? (char *)group : NULL;
1779 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1780
1781 struct vde_open_args args = {
1782 .port = port,
1783 .group = init_group,
1784 .mode = mode,
1785 };
1786
1787 s = qemu_mallocz(sizeof(VDEState));
cc63bb0f 1788 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
63a01ef8
AL		 1789 if (!s->vde){
1790 free(s);
1791 return -1;
1792 }
e3f5ec2b 1793 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
b946a153 1794 NULL, vde_cleanup, s);
63a01ef8 1795 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
7cb7434b 1796 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
63a01ef8
AL		 1797 sock, vde_datafd(s->vde));
1798 return 0;
1799}
1800#endif
1801
1802/* network connection */
1803typedef struct NetSocketState {
1804 VLANClientState *vc;
1805 int fd;
1806 int state; /* 0 = getting length, 1 = getting data */
abcd2baa
AL		 1807 unsigned int index;
1808 unsigned int packet_len;
63a01ef8
AL		 1809 uint8_t buf[4096];
1810 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1811} NetSocketState;
1812
1813typedef struct NetSocketListenState {
1814 VLANState *vlan;
bf38c1a0 1815 char *model;
7a9f6e4a 1816 char *name;
63a01ef8
AL		 1817 int fd;
1818} NetSocketListenState;
1819
1820/* XXX: we consider we can send the whole packet without blocking */
4f1c942b 1821static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 1822{
e3f5ec2b 1823 NetSocketState *s = vc->opaque;
63a01ef8
AL		 1824 uint32_t len;
1825 len = htonl(size);
1826
1827 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
4f1c942b 1828 return send_all(s->fd, buf, size);
63a01ef8
AL		 1829}
1830
4f1c942b 1831static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 1832{
e3f5ec2b 1833 NetSocketState *s = vc->opaque;
4f1c942b 1834
70503264 1835 return sendto(s->fd, (const void *)buf, size, 0,
4f1c942b 1836 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
63a01ef8
AL		 1837}
1838
1839static void net_socket_send(void *opaque)
1840{
1841 NetSocketState *s = opaque;
abcd2baa
AL		 1842 int size, err;
1843 unsigned l;
63a01ef8
AL		 1844 uint8_t buf1[4096];
1845 const uint8_t *buf;
1846
c5b76b38 1847 size = recv(s->fd, (void *)buf1, sizeof(buf1), 0);
63a01ef8
AL		 1848 if (size < 0) {
1849 err = socket_error();
1850 if (err != EWOULDBLOCK)
1851 goto eoc;
1852 } else if (size == 0) {
1853 /* end of connection */
1854 eoc:
1855 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1856 closesocket(s->fd);
1857 return;
1858 }
1859 buf = buf1;
1860 while (size > 0) {
1861 /* reassemble a packet from the network */
1862 switch(s->state) {
1863 case 0:
1864 l = 4 - s->index;
1865 if (l > size)
1866 l = size;
1867 memcpy(s->buf + s->index, buf, l);
1868 buf += l;
1869 size -= l;
1870 s->index += l;
1871 if (s->index == 4) {
1872 /* got length */
1873 s->packet_len = ntohl(*(uint32_t *)s->buf);
1874 s->index = 0;
1875 s->state = 1;
1876 }
1877 break;
1878 case 1:
1879 l = s->packet_len - s->index;
1880 if (l > size)
1881 l = size;
abcd2baa
AL		 1882 if (s->index + l <= sizeof(s->buf)) {
1883 memcpy(s->buf + s->index, buf, l);
1884 } else {
1885 fprintf(stderr, "serious error: oversized packet received,"
1886 "connection terminated.\n");
1887 s->state = 0;
1888 goto eoc;
1889 }
1890
63a01ef8
AL		 1891 s->index += l;
1892 buf += l;
1893 size -= l;
1894 if (s->index >= s->packet_len) {
1895 qemu_send_packet(s->vc, s->buf, s->packet_len);
1896 s->index = 0;
1897 s->state = 0;
1898 }
1899 break;
1900 }
1901 }
1902}
1903
1904static void net_socket_send_dgram(void *opaque)
1905{
1906 NetSocketState *s = opaque;
1907 int size;
1908
c5b76b38 1909 size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
63a01ef8
AL		 1910 if (size < 0)
1911 return;
1912 if (size == 0) {
1913 /* end of connection */
1914 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1915 return;
1916 }
1917 qemu_send_packet(s->vc, s->buf, size);
1918}
1919
1920static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1921{
1922 struct ip_mreq imr;
1923 int fd;
1924 int val, ret;
1925 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1926 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1927 inet_ntoa(mcastaddr->sin_addr),
1928 (int)ntohl(mcastaddr->sin_addr.s_addr));
1929 return -1;
1930
1931 }
1932 fd = socket(PF_INET, SOCK_DGRAM, 0);
1933 if (fd < 0) {
1934 perror("socket(PF_INET, SOCK_DGRAM)");
1935 return -1;
1936 }
1937
1938 val = 1;
1939 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1940 (const char *)&val, sizeof(val));
1941 if (ret < 0) {
1942 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1943 goto fail;
1944 }
1945
1946 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1947 if (ret < 0) {
1948 perror("bind");
1949 goto fail;
1950 }
1951
1952 /* Add host to multicast group */
1953 imr.imr_multiaddr = mcastaddr->sin_addr;
1954 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1955
1956 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1957 (const char *)&imr, sizeof(struct ip_mreq));
1958 if (ret < 0) {
1959 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1960 goto fail;
1961 }
1962
1963 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1964 val = 1;
1965 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1966 (const char *)&val, sizeof(val));
1967 if (ret < 0) {
1968 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1969 goto fail;
1970 }
1971
1972 socket_set_nonblock(fd);
1973 return fd;
1974fail:
1975 if (fd >= 0)
1976 closesocket(fd);
1977 return -1;
1978}
1979
b946a153
AL		 1980static void net_socket_cleanup(VLANClientState *vc)
1981{
1982 NetSocketState *s = vc->opaque;
1983 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1984 close(s->fd);
1985 qemu_free(s);
1986}
1987
7a9f6e4a
AL		 1988static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1989 const char *model,
1990 const char *name,
bf38c1a0 1991 int fd, int is_connected)
63a01ef8
AL		 1992{
1993 struct sockaddr_in saddr;
1994 int newfd;
1995 socklen_t saddr_len;
1996 NetSocketState *s;
1997
1998 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1999 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
2000 * by ONLY ONE process: we must "clone" this dgram socket --jjo
2001 */
2002
2003 if (is_connected) {
2004 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
2005 /* must be bound */
2006 if (saddr.sin_addr.s_addr==0) {
2007 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
2008 fd);
2009 return NULL;
2010 }
2011 /* clone dgram socket */
2012 newfd = net_socket_mcast_create(&saddr);
2013 if (newfd < 0) {
2014 /* error already reported by net_socket_mcast_create() */
2015 close(fd);
2016 return NULL;
2017 }
2018 /* clone newfd to fd, close newfd */
2019 dup2(newfd, fd);
2020 close(newfd);
2021
2022 } else {
2023 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
2024 fd, strerror(errno));
2025 return NULL;
2026 }
2027 }
2028
2029 s = qemu_mallocz(sizeof(NetSocketState));
63a01ef8
AL		 2030 s->fd = fd;
2031
463af534 2032 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
b946a153 2033 NULL, net_socket_cleanup, s);
63a01ef8
AL		 2034 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
2035
2036 /* mcast: save bound address as dst */
2037 if (is_connected) s->dgram_dst=saddr;
2038
2039 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2040 "socket: fd=%d (%s mcast=%s:%d)",
2041 fd, is_connected? "cloned" : "",
2042 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2043 return s;
2044}
2045
2046static void net_socket_connect(void *opaque)
2047{
2048 NetSocketState *s = opaque;
2049 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
2050}
2051
7a9f6e4a
AL		 2052static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
2053 const char *model,
2054 const char *name,
bf38c1a0 2055 int fd, int is_connected)
63a01ef8
AL		 2056{
2057 NetSocketState *s;
2058 s = qemu_mallocz(sizeof(NetSocketState));
63a01ef8 2059 s->fd = fd;
463af534 2060 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
b946a153 2061 NULL, net_socket_cleanup, s);
63a01ef8
AL		 2062 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2063 "socket: fd=%d", fd);
2064 if (is_connected) {
2065 net_socket_connect(s);
2066 } else {
2067 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
2068 }
2069 return s;
2070}
2071
7a9f6e4a
AL		 2072static NetSocketState *net_socket_fd_init(VLANState *vlan,
2073 const char *model, const char *name,
bf38c1a0 2074 int fd, int is_connected)
63a01ef8
AL		 2075{
2076 int so_type=-1, optlen=sizeof(so_type);
2077
2078 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
2079 (socklen_t *)&optlen)< 0) {
2080 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
2081 return NULL;
2082 }
2083 switch(so_type) {
2084 case SOCK_DGRAM:
7a9f6e4a 2085 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
63a01ef8 2086 case SOCK_STREAM:
7a9f6e4a 2087 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
63a01ef8
AL		 2088 default:
2089 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
2090 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
7a9f6e4a 2091 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
63a01ef8
AL		 2092 }
2093 return NULL;
2094}
2095
2096static void net_socket_accept(void *opaque)
2097{
2098 NetSocketListenState *s = opaque;
2099 NetSocketState *s1;
2100 struct sockaddr_in saddr;
2101 socklen_t len;
2102 int fd;
2103
2104 for(;;) {
2105 len = sizeof(saddr);
2106 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
2107 if (fd < 0 && errno != EINTR) {
2108 return;
2109 } else if (fd >= 0) {
2110 break;
2111 }
2112 }
7a9f6e4a 2113 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
63a01ef8
AL		 2114 if (!s1) {
2115 closesocket(fd);
2116 } else {
2117 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
2118 "socket: connection from %s:%d",
2119 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2120 }
2121}
2122
7a9f6e4a
AL		 2123static int net_socket_listen_init(VLANState *vlan,
2124 const char *model,
2125 const char *name,
bf38c1a0 2126 const char *host_str)
63a01ef8
AL		 2127{
2128 NetSocketListenState *s;
2129 int fd, val, ret;
2130 struct sockaddr_in saddr;
2131
2132 if (parse_host_port(&saddr, host_str) < 0)
2133 return -1;
2134
2135 s = qemu_mallocz(sizeof(NetSocketListenState));
63a01ef8
AL		 2136
2137 fd = socket(PF_INET, SOCK_STREAM, 0);
2138 if (fd < 0) {
2139 perror("socket");
2140 return -1;
2141 }
2142 socket_set_nonblock(fd);
2143
2144 /* allow fast reuse */
2145 val = 1;
2146 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
2147
2148 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
2149 if (ret < 0) {
2150 perror("bind");
2151 return -1;
2152 }
2153 ret = listen(fd, 0);
2154 if (ret < 0) {
2155 perror("listen");
2156 return -1;
2157 }
2158 s->vlan = vlan;
bf38c1a0 2159 s->model = strdup(model);
ea053add 2160 s->name = name ? strdup(name) : NULL;
63a01ef8
AL		 2161 s->fd = fd;
2162 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
2163 return 0;
2164}
2165
7a9f6e4a
AL		 2166static int net_socket_connect_init(VLANState *vlan,
2167 const char *model,
2168 const char *name,
bf38c1a0 2169 const char *host_str)
63a01ef8
AL		 2170{
2171 NetSocketState *s;
2172 int fd, connected, ret, err;
2173 struct sockaddr_in saddr;
2174
2175 if (parse_host_port(&saddr, host_str) < 0)
2176 return -1;
2177
2178 fd = socket(PF_INET, SOCK_STREAM, 0);
2179 if (fd < 0) {
2180 perror("socket");
2181 return -1;
2182 }
2183 socket_set_nonblock(fd);
2184
2185 connected = 0;
2186 for(;;) {
2187 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
2188 if (ret < 0) {
2189 err = socket_error();
2190 if (err == EINTR || err == EWOULDBLOCK) {
2191 } else if (err == EINPROGRESS) {
2192 break;
2193#ifdef _WIN32
2194 } else if (err == WSAEALREADY) {
2195 break;
2196#endif
2197 } else {
2198 perror("connect");
2199 closesocket(fd);
2200 return -1;
2201 }
2202 } else {
2203 connected = 1;
2204 break;
2205 }
2206 }
7a9f6e4a 2207 s = net_socket_fd_init(vlan, model, name, fd, connected);
63a01ef8
AL		 2208 if (!s)
2209 return -1;
2210 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2211 "socket: connect to %s:%d",
2212 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2213 return 0;
2214}
2215
7a9f6e4a
AL		 2216static int net_socket_mcast_init(VLANState *vlan,
2217 const char *model,
2218 const char *name,
bf38c1a0 2219 const char *host_str)
63a01ef8
AL		 2220{
2221 NetSocketState *s;
2222 int fd;
2223 struct sockaddr_in saddr;
2224
2225 if (parse_host_port(&saddr, host_str) < 0)
2226 return -1;
2227
2228
2229 fd = net_socket_mcast_create(&saddr);
2230 if (fd < 0)
2231 return -1;
2232
7a9f6e4a 2233 s = net_socket_fd_init(vlan, model, name, fd, 0);
63a01ef8
AL		 2234 if (!s)
2235 return -1;
2236
2237 s->dgram_dst = saddr;
2238
2239 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2240 "socket: mcast=%s:%d",
2241 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2242 return 0;
2243
2244}
2245
bb9ea79e
AL		 2246typedef struct DumpState {
2247 VLANClientState *pcap_vc;
2248 int fd;
2249 int pcap_caplen;
2250} DumpState;
2251
2252#define PCAP_MAGIC 0xa1b2c3d4
2253
2254struct pcap_file_hdr {
2255 uint32_t magic;
2256 uint16_t version_major;
2257 uint16_t version_minor;
2258 int32_t thiszone;
2259 uint32_t sigfigs;
2260 uint32_t snaplen;
2261 uint32_t linktype;
2262};
2263
2264struct pcap_sf_pkthdr {
2265 struct {
2266 int32_t tv_sec;
2267 int32_t tv_usec;
2268 } ts;
2269 uint32_t caplen;
2270 uint32_t len;
2271};
2272
4f1c942b 2273static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
bb9ea79e 2274{
e3f5ec2b 2275 DumpState *s = vc->opaque;
bb9ea79e
AL		 2276 struct pcap_sf_pkthdr hdr;
2277 int64_t ts;
2278 int caplen;
2279
2280 /* Early return in case of previous error. */
2281 if (s->fd < 0) {
4f1c942b 2282 return size;
bb9ea79e
AL		 2283 }
2284
37cb6fc3 2285 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
bb9ea79e
AL		 2286 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
2287
37cb6fc3 2288 hdr.ts.tv_sec = ts / 1000000;
bb9ea79e
AL		 2289 hdr.ts.tv_usec = ts % 1000000;
2290 hdr.caplen = caplen;
2291 hdr.len = size;
2292 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
2293 write(s->fd, buf, caplen) != caplen) {
2294 qemu_log("-net dump write error - stop dump\n");
2295 close(s->fd);
2296 s->fd = -1;
2297 }
4f1c942b
MM		 2298
2299 return size;
bb9ea79e
AL		 2300}
2301
2302static void net_dump_cleanup(VLANClientState *vc)
2303{
2304 DumpState *s = vc->opaque;
2305
2306 close(s->fd);
2307 qemu_free(s);
2308}
2309
10ae5a7a 2310static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
bb9ea79e
AL		 2311 const char *name, const char *filename, int len)
2312{
2313 struct pcap_file_hdr hdr;
2314 DumpState *s;
2315
2316 s = qemu_malloc(sizeof(DumpState));
2317
024431b3 2318 s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
bb9ea79e 2319 if (s->fd < 0) {
10ae5a7a 2320 config_error(mon, "-net dump: can't open %s\n", filename);
bb9ea79e
AL		 2321 return -1;
2322 }
2323
2324 s->pcap_caplen = len;
2325
2326 hdr.magic = PCAP_MAGIC;
2327 hdr.version_major = 2;
2328 hdr.version_minor = 4;
2329 hdr.thiszone = 0;
2330 hdr.sigfigs = 0;
2331 hdr.snaplen = s->pcap_caplen;
2332 hdr.linktype = 1;
2333
2334 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
10ae5a7a 2335 config_error(mon, "-net dump write error: %s\n", strerror(errno));
bb9ea79e
AL		 2336 close(s->fd);
2337 qemu_free(s);
2338 return -1;
2339 }
2340
463af534 2341 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL,
bb9ea79e
AL		 2342 net_dump_cleanup, s);
2343 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
2344 "dump to %s (len=%d)", filename, len);
2345 return 0;
2346}
2347
63a01ef8 2348/* find or alloc a new VLAN */
1a609520 2349VLANState *qemu_find_vlan(int id, int allocate)
63a01ef8
AL		 2350{
2351 VLANState **pvlan, *vlan;
2352 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2353 if (vlan->id == id)
2354 return vlan;
2355 }
1a609520
JK		 2356 if (!allocate) {
2357 return NULL;
2358 }
63a01ef8 2359 vlan = qemu_mallocz(sizeof(VLANState));
63a01ef8
AL		 2360 vlan->id = id;
2361 vlan->next = NULL;
2362 pvlan = &first_vlan;
2363 while (*pvlan != NULL)
2364 pvlan = &(*pvlan)->next;
2365 *pvlan = vlan;
2366 return vlan;
2367}
2368
7697079b
AL		 2369static int nic_get_free_idx(void)
2370{
2371 int index;
2372
2373 for (index = 0; index < MAX_NICS; index++)
2374 if (!nd_table[index].used)
2375 return index;
2376 return -1;
2377}
2378
d07f22c5
AL		 2379void qemu_check_nic_model(NICInfo *nd, const char *model)
2380{
2381 const char *models[2];
2382
2383 models[0] = model;
2384 models[1] = NULL;
2385
2386 qemu_check_nic_model_list(nd, models, model);
2387}
2388
2389void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
2390 const char *default_model)
2391{
2392 int i, exit_status = 0;
2393
2394 if (!nd->model)
2395 nd->model = strdup(default_model);
2396
2397 if (strcmp(nd->model, "?") != 0) {
2398 for (i = 0 ; models[i]; i++)
2399 if (strcmp(nd->model, models[i]) == 0)
2400 return;
2401
2402 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
2403 exit_status = 1;
2404 }
2405
2406 fprintf(stderr, "qemu: Supported NIC models: ");
2407 for (i = 0 ; models[i]; i++)
2408 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
2409
2410 exit(exit_status);
2411}
2412
10ae5a7a 2413int net_client_init(Monitor *mon, const char *device, const char *p)
63a01ef8
AL		 2414{
2415 char buf[1024];
2416 int vlan_id, ret;
2417 VLANState *vlan;
7a9f6e4a 2418 char *name = NULL;
63a01ef8
AL		 2419
2420 vlan_id = 0;
2421 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
2422 vlan_id = strtol(buf, NULL, 0);
2423 }
1a609520 2424 vlan = qemu_find_vlan(vlan_id, 1);
9036de1a 2425
7a9f6e4a 2426 if (get_param_value(buf, sizeof(buf), "name", p)) {
10ae5a7a 2427 name = qemu_strdup(buf);
7a9f6e4a 2428 }
63a01ef8 2429 if (!strcmp(device, "nic")) {
8e4416af 2430 static const char * const nic_params[] = {
ffe6370c 2431 "vlan", "name", "macaddr", "model", "addr", "vectors", NULL
8e4416af 2432 };
63a01ef8
AL		 2433 NICInfo *nd;
2434 uint8_t *macaddr;
7697079b 2435 int idx = nic_get_free_idx();
63a01ef8 2436
0aa7a205 2437 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
10ae5a7a
JK		 2438 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2439 ret = -1;
2440 goto out;
8e4416af 2441 }
7697079b 2442 if (idx == -1 || nb_nics >= MAX_NICS) {
10ae5a7a 2443 config_error(mon, "Too Many NICs\n");
771f1339
AL		 2444 ret = -1;
2445 goto out;
63a01ef8 2446 }
7697079b 2447 nd = &nd_table[idx];
63a01ef8
AL		 2448 macaddr = nd->macaddr;
2449 macaddr[0] = 0x52;
2450 macaddr[1] = 0x54;
2451 macaddr[2] = 0x00;
2452 macaddr[3] = 0x12;
2453 macaddr[4] = 0x34;
7697079b 2454 macaddr[5] = 0x56 + idx;
63a01ef8
AL		 2455
2456 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
2457 if (parse_macaddr(macaddr, buf) < 0) {
10ae5a7a 2458 config_error(mon, "invalid syntax for ethernet address\n");
771f1339
AL		 2459 ret = -1;
2460 goto out;
63a01ef8
AL		 2461 }
2462 }
2463 if (get_param_value(buf, sizeof(buf), "model", p)) {
2464 nd->model = strdup(buf);
2465 }
5607c388
MA		 2466 if (get_param_value(buf, sizeof(buf), "addr", p)) {
2467 nd->devaddr = strdup(buf);
2468 }
ffe6370c
MT		 2469 nd->nvectors = NIC_NVECTORS_UNSPECIFIED;
2470 if (get_param_value(buf, sizeof(buf), "vectors", p)) {
2471 char *endptr;
2472 long vectors = strtol(buf, &endptr, 0);
2473 if (*endptr) {
2474 config_error(mon, "invalid syntax for # of vectors\n");
2475 ret = -1;
2476 goto out;
2477 }
2478 if (vectors < 0 || vectors > 0x7ffffff) {
2479 config_error(mon, "invalid # of vectors\n");
2480 ret = -1;
2481 goto out;
2482 }
2483 nd->nvectors = vectors;
2484 }
63a01ef8 2485 nd->vlan = vlan;
7a9f6e4a 2486 nd->name = name;
7697079b 2487 nd->used = 1;
7a9f6e4a 2488 name = NULL;
63a01ef8
AL		 2489 nb_nics++;
2490 vlan->nb_guest_devs++;
4d73cd3b 2491 ret = idx;
63a01ef8
AL		 2492 } else
2493 if (!strcmp(device, "none")) {
8e4416af 2494 if (*p != '\0') {
10ae5a7a
JK		 2495 config_error(mon, "'none' takes no parameters\n");
2496 ret = -1;
2497 goto out;
8e4416af 2498 }
63a01ef8
AL		 2499 /* does nothing. It is needed to signal that no network cards
2500 are wanted */
2501 ret = 0;
2502 } else
2503#ifdef CONFIG_SLIRP
2504 if (!strcmp(device, "user")) {
8e4416af 2505 static const char * const slirp_params[] = {
c92ef6a2
JK		 2506 "vlan", "name", "hostname", "restrict", "ip", "net", "host",
2507 "tftp", "bootfile", "dhcpstart", "dns", "smb", "smbserver",
2508 "hostfwd", "guestfwd", NULL
8e4416af 2509 };
ad196a9d 2510 struct slirp_config_str *config;
c92ef6a2
JK		 2511 int restricted = 0;
2512 char *vnet = NULL;
2513 char *vhost = NULL;
2514 char *vhostname = NULL;
ad196a9d
JK		 2515 char *tftp_export = NULL;
2516 char *bootfile = NULL;
c92ef6a2
JK		 2517 char *vdhcp_start = NULL;
2518 char *vnamesrv = NULL;
ad196a9d 2519 char *smb_export = NULL;
c92ef6a2 2520 char *vsmbsrv = NULL;
ad196a9d 2521 const char *q;
b8e8af38 2522
0aa7a205 2523 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
10ae5a7a
JK		 2524 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2525 ret = -1;
2526 goto out;
8e4416af 2527 }
c92ef6a2 2528 if (get_param_value(buf, sizeof(buf), "ip", p)) {
3da6abd4 2529 int vnet_buflen = strlen(buf) + strlen("/24") + 1;
c92ef6a2 2530 /* emulate legacy parameter */
3da6abd4
BS		 2531 vnet = qemu_malloc(vnet_buflen);
2532 pstrcpy(vnet, vnet_buflen, buf);
2533 pstrcat(vnet, vnet_buflen, "/24");
c92ef6a2
JK		 2534 }
2535 if (get_param_value(buf, sizeof(buf), "net", p)) {
2536 vnet = qemu_strdup(buf);
2537 }
2538 if (get_param_value(buf, sizeof(buf), "host", p)) {
2539 vhost = qemu_strdup(buf);
2540 }
63a01ef8 2541 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
c92ef6a2 2542 vhostname = qemu_strdup(buf);
63a01ef8 2543 }
49ec9b40 2544 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
b8e8af38 2545 restricted = (buf[0] == 'y') ? 1 : 0;
49ec9b40 2546 }
c92ef6a2
JK		 2547 if (get_param_value(buf, sizeof(buf), "dhcpstart", p)) {
2548 vdhcp_start = qemu_strdup(buf);
2549 }
2550 if (get_param_value(buf, sizeof(buf), "dns", p)) {
2551 vnamesrv = qemu_strdup(buf);
49ec9b40 2552 }
ad196a9d
JK		 2553 if (get_param_value(buf, sizeof(buf), "tftp", p)) {
2554 tftp_export = qemu_strdup(buf);
2555 }
2556 if (get_param_value(buf, sizeof(buf), "bootfile", p)) {
2557 bootfile = qemu_strdup(buf);
2558 }
2559 if (get_param_value(buf, sizeof(buf), "smb", p)) {
2560 smb_export = qemu_strdup(buf);
c92ef6a2
JK		 2561 if (get_param_value(buf, sizeof(buf), "smbserver", p)) {
2562 vsmbsrv = qemu_strdup(buf);
2563 }
ad196a9d
JK		 2564 }
2565 q = p;
2566 while (1) {
2567 config = qemu_malloc(sizeof(*config));
2568 if (!get_next_param_value(config->str, sizeof(config->str),
c92ef6a2 2569 "hostfwd", &q)) {
ad196a9d
JK		 2570 break;
2571 }
c92ef6a2 2572 config->flags = SLIRP_CFG_HOSTFWD;
ad196a9d
JK		 2573 config->next = slirp_configs;
2574 slirp_configs = config;
2575 config = NULL;
2576 }
2577 q = p;
2578 while (1) {
2579 config = qemu_malloc(sizeof(*config));
2580 if (!get_next_param_value(config->str, sizeof(config->str),
c92ef6a2 2581 "guestfwd", &q)) {
ad196a9d
JK		 2582 break;
2583 }
2584 config->flags = 0;
2585 config->next = slirp_configs;
2586 slirp_configs = config;
2587 config = NULL;
2588 }
2589 qemu_free(config);
63a01ef8 2590 vlan->nb_host_devs++;
c92ef6a2
JK		 2591 ret = net_slirp_init(mon, vlan, device, name, restricted, vnet, vhost,
2592 vhostname, tftp_export, bootfile, vdhcp_start,
2593 vnamesrv, smb_export, vsmbsrv);
2594 qemu_free(vnet);
2595 qemu_free(vhost);
2596 qemu_free(vhostname);
ad196a9d
JK		 2597 qemu_free(tftp_export);
2598 qemu_free(bootfile);
c92ef6a2
JK		 2599 qemu_free(vdhcp_start);
2600 qemu_free(vnamesrv);
ad196a9d 2601 qemu_free(smb_export);
c92ef6a2 2602 qemu_free(vsmbsrv);
8ca9217d 2603 } else if (!strcmp(device, "channel")) {
b1c99fcd 2604 if (TAILQ_EMPTY(&slirp_stacks)) {
ad196a9d
JK		 2605 struct slirp_config_str *config;
2606
2607 config = qemu_malloc(sizeof(*config));
2608 pstrcpy(config->str, sizeof(config->str), p);
c92ef6a2 2609 config->flags = SLIRP_CFG_LEGACY;
ad196a9d
JK		 2610 config->next = slirp_configs;
2611 slirp_configs = config;
2612 } else {
b1c99fcd 2613 slirp_guestfwd(TAILQ_FIRST(&slirp_stacks), mon, p, 1);
8ca9217d 2614 }
8ca9217d 2615 ret = 0;
63a01ef8
AL		 2616 } else
2617#endif
2618#ifdef _WIN32
2619 if (!strcmp(device, "tap")) {
8e4416af
AL		 2620 static const char * const tap_params[] = {
2621 "vlan", "name", "ifname", NULL
2622 };
63a01ef8 2623 char ifname[64];
8e4416af 2624
0aa7a205 2625 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
10ae5a7a
JK		 2626 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2627 ret = -1;
2628 goto out;
8e4416af 2629 }
63a01ef8 2630 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
10ae5a7a 2631 config_error(mon, "tap: no interface name\n");
771f1339
AL		 2632 ret = -1;
2633 goto out;
63a01ef8
AL		 2634 }
2635 vlan->nb_host_devs++;
7a9f6e4a 2636 ret = tap_win32_init(vlan, device, name, ifname);
63a01ef8 2637 } else
b29fe3ed 2638#elif defined (_AIX)
63a01ef8
AL		 2639#else
2640 if (!strcmp(device, "tap")) {
0aa7a205 2641 char ifname[64], chkbuf[64];
63a01ef8 2642 char setup_script[1024], down_script[1024];
4a77b25e 2643 TAPState *s;
63a01ef8
AL		 2644 int fd;
2645 vlan->nb_host_devs++;
2646 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
0df0ff6d
MM		 2647 static const char * const fd_params[] = {
2648 "vlan", "name", "fd", "sndbuf", NULL
2649 };
0aa7a205 2650 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
10ae5a7a
JK		 2651 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2652 ret = -1;
2653 goto out;
8e4416af 2654 }
63a01ef8
AL		 2655 fd = strtol(buf, NULL, 0);
2656 fcntl(fd, F_SETFL, O_NONBLOCK);
4a77b25e 2657 s = net_tap_fd_init(vlan, device, name, fd);
63a01ef8 2658 } else {
8e4416af 2659 static const char * const tap_params[] = {
0df0ff6d 2660 "vlan", "name", "ifname", "script", "downscript", "sndbuf", NULL
8e4416af 2661 };
0aa7a205 2662 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
10ae5a7a
JK		 2663 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2664 ret = -1;
2665 goto out;
8e4416af 2666 }
63a01ef8
AL		 2667 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2668 ifname[0] = '\0';
2669 }
2670 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2671 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2672 }
2673 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2674 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2675 }
4a77b25e
MM		 2676 s = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2677 }
2678 if (s != NULL) {
fc5b81d1 2679 const char *sndbuf_str = NULL;
0df0ff6d 2680 if (get_param_value(buf, sizeof(buf), "sndbuf", p)) {
fc5b81d1 2681 sndbuf_str = buf;
0df0ff6d 2682 }
fc5b81d1 2683 tap_set_sndbuf(s, sndbuf_str, mon);
4a77b25e
MM		 2684 ret = 0;
2685 } else {
2686 ret = -1;
63a01ef8
AL		 2687 }
2688 } else
2689#endif
2690 if (!strcmp(device, "socket")) {
0aa7a205 2691 char chkbuf[64];
63a01ef8 2692 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
0df0ff6d
MM		 2693 static const char * const fd_params[] = {
2694 "vlan", "name", "fd", NULL
2695 };
63a01ef8 2696 int fd;
0aa7a205 2697 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
10ae5a7a
JK		 2698 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2699 ret = -1;
2700 goto out;
8e4416af 2701 }
63a01ef8
AL		 2702 fd = strtol(buf, NULL, 0);
2703 ret = -1;
7a9f6e4a 2704 if (net_socket_fd_init(vlan, device, name, fd, 1))
63a01ef8
AL		 2705 ret = 0;
2706 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
8e4416af
AL		 2707 static const char * const listen_params[] = {
2708 "vlan", "name", "listen", NULL
2709 };
0aa7a205 2710 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
10ae5a7a
JK		 2711 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2712 ret = -1;
2713 goto out;
8e4416af 2714 }
7a9f6e4a 2715 ret = net_socket_listen_init(vlan, device, name, buf);
63a01ef8 2716 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
8e4416af
AL		 2717 static const char * const connect_params[] = {
2718 "vlan", "name", "connect", NULL
2719 };
0aa7a205 2720 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
10ae5a7a
JK		 2721 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2722 ret = -1;
2723 goto out;
8e4416af 2724 }
7a9f6e4a 2725 ret = net_socket_connect_init(vlan, device, name, buf);
63a01ef8 2726 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
8e4416af
AL		 2727 static const char * const mcast_params[] = {
2728 "vlan", "name", "mcast", NULL
2729 };
0aa7a205 2730 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
10ae5a7a
JK		 2731 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2732 ret = -1;
2733 goto out;
8e4416af 2734 }
7a9f6e4a 2735 ret = net_socket_mcast_init(vlan, device, name, buf);
63a01ef8 2736 } else {
10ae5a7a 2737 config_error(mon, "Unknown socket options: %s\n", p);
771f1339
AL		 2738 ret = -1;
2739 goto out;
63a01ef8
AL		 2740 }
2741 vlan->nb_host_devs++;
2742 } else
2743#ifdef CONFIG_VDE
2744 if (!strcmp(device, "vde")) {
8e4416af
AL		 2745 static const char * const vde_params[] = {
2746 "vlan", "name", "sock", "port", "group", "mode", NULL
2747 };
63a01ef8
AL		 2748 char vde_sock[1024], vde_group[512];
2749 int vde_port, vde_mode;
8e4416af 2750
0aa7a205 2751 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
10ae5a7a
JK		 2752 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2753 ret = -1;
2754 goto out;
8e4416af 2755 }
63a01ef8
AL		 2756 vlan->nb_host_devs++;
2757 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2758 vde_sock[0] = '\0';
2759 }
2760 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2761 vde_port = strtol(buf, NULL, 10);
2762 } else {
2763 vde_port = 0;
2764 }
2765 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2766 vde_group[0] = '\0';
2767 }
2768 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2769 vde_mode = strtol(buf, NULL, 8);
2770 } else {
2771 vde_mode = 0700;
2772 }
7a9f6e4a 2773 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
63a01ef8
AL		 2774 } else
2775#endif
bb9ea79e
AL		 2776 if (!strcmp(device, "dump")) {
2777 int len = 65536;
2778
2779 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2780 len = strtol(buf, NULL, 0);
2781 }
2782 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2783 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2784 }
10ae5a7a 2785 ret = net_dump_init(mon, vlan, device, name, buf, len);
bb9ea79e 2786 } else {
10ae5a7a 2787 config_error(mon, "Unknown network device: %s\n", device);
771f1339
AL		 2788 ret = -1;
2789 goto out;
63a01ef8
AL		 2790 }
2791 if (ret < 0) {
10ae5a7a 2792 config_error(mon, "Could not initialize device '%s'\n", device);
63a01ef8 2793 }
771f1339 2794out:
10ae5a7a 2795 qemu_free(name);
63a01ef8
AL		 2796 return ret;
2797}
2798
8b13c4a7
AL		 2799void net_client_uninit(NICInfo *nd)
2800{
2801 nd->vlan->nb_guest_devs--;
2802 nb_nics--;
2803 nd->used = 0;
2804 free((void *)nd->model);
2805}
2806
6f338c34
AL		 2807static int net_host_check_device(const char *device)
2808{
2809 int i;
bb9ea79e 2810 const char *valid_param_list[] = { "tap", "socket", "dump"
6f338c34
AL		 2811#ifdef CONFIG_SLIRP
2812 ,"user"
2813#endif
2814#ifdef CONFIG_VDE
2815 ,"vde"
2816#endif
2817 };
2818 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2819 if (!strncmp(valid_param_list[i], device,
2820 strlen(valid_param_list[i])))
2821 return 1;
2822 }
2823
2824 return 0;
2825}
2826
376253ec 2827void net_host_device_add(Monitor *mon, const char *device, const char *opts)
6f338c34
AL		 2828{
2829 if (!net_host_check_device(device)) {
376253ec 2830 monitor_printf(mon, "invalid host network device %s\n", device);
6f338c34
AL		 2831 return;
2832 }
10ae5a7a 2833 if (net_client_init(mon, device, opts ? opts : "") < 0) {
5c8be678
AL		 2834 monitor_printf(mon, "adding host network device %s failed\n", device);
2835 }
6f338c34
AL		 2836}
2837
376253ec 2838void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
6f338c34 2839{
6f338c34
AL		 2840 VLANClientState *vc;
2841
1a609520 2842 vc = qemu_find_vlan_client_by_name(mon, vlan_id, device);
6f338c34 2843 if (!vc) {
6f338c34
AL		 2844 return;
2845 }
e8f1f9db
AL		 2846 if (!net_host_check_device(vc->model)) {
2847 monitor_printf(mon, "invalid host network device %s\n", device);
2848 return;
2849 }
6f338c34
AL		 2850 qemu_del_vlan_client(vc);
2851}
2852
63a01ef8
AL		 2853int net_client_parse(const char *str)
2854{
2855 const char *p;
2856 char *q;
2857 char device[64];
2858
2859 p = str;
2860 q = device;
2861 while (*p != '\0' && *p != ',') {
2862 if ((q - device) < sizeof(device) - 1)
2863 *q++ = *p;
2864 p++;
2865 }
2866 *q = '\0';
2867 if (*p == ',')
2868 p++;
2869
10ae5a7a 2870 return net_client_init(NULL, device, p);
63a01ef8
AL		 2871}
2872
406c8df3
GC		 2873void net_set_boot_mask(int net_boot_mask)
2874{
2875 int i;
2876
2877 /* Only the first four NICs may be bootable */
2878 net_boot_mask = net_boot_mask & 0xF;
2879
2880 for (i = 0; i < nb_nics; i++) {
2881 if (net_boot_mask & (1 << i)) {
2882 nd_table[i].bootable = 1;
2883 net_boot_mask &= ~(1 << i);
2884 }
2885 }
2886
2887 if (net_boot_mask) {
2888 fprintf(stderr, "Cannot boot from non-existent NIC\n");
2889 exit(1);
2890 }
2891}
2892
376253ec 2893void do_info_network(Monitor *mon)
63a01ef8
AL		 2894{
2895 VLANState *vlan;
2896 VLANClientState *vc;
2897
2898 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
376253ec 2899 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
63a01ef8 2900 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
376253ec 2901 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
63a01ef8
AL		 2902 }
2903}
2904
376253ec 2905int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
436e5e53
AL		 2906{
2907 VLANState *vlan;
2908 VLANClientState *vc = NULL;
2909
2910 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2911 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2912 if (strcmp(vc->name, name) == 0)
dd5de373
EI		 2913 goto done;
2914done:
436e5e53
AL		 2915
2916 if (!vc) {
376253ec 2917 monitor_printf(mon, "could not find network device '%s'", name);
436e5e53
AL		 2918 return 0;
2919 }
2920
2921 if (strcmp(up_or_down, "up") == 0)
2922 vc->link_down = 0;
2923 else if (strcmp(up_or_down, "down") == 0)
2924 vc->link_down = 1;
2925 else
376253ec
AL		 2926 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2927 "valid\n", up_or_down);
436e5e53 2928
34b25ca7
AL		 2929 if (vc->link_status_changed)
2930 vc->link_status_changed(vc);
2931
436e5e53
AL		 2932 return 1;
2933}
2934
63a01ef8
AL		 2935void net_cleanup(void)
2936{
2937 VLANState *vlan;
2938
63a01ef8
AL		 2939 /* close network clients */
2940 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
b946a153 2941 VLANClientState *vc = vlan->first_client;
63a01ef8 2942
b946a153
AL		 2943 while (vc) {
2944 VLANClientState *next = vc->next;
63a01ef8 2945
b946a153
AL		 2946 qemu_del_vlan_client(vc);
2947
2948 vc = next;
63a01ef8
AL		 2949 }
2950 }
63a01ef8
AL		 2951}
2952
2953void net_client_check(void)
2954{
2955 VLANState *vlan;
2956
2957 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2958 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2959 continue;
2960 if (vlan->nb_guest_devs == 0)
2961 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2962 if (vlan->nb_host_devs == 0)
2963 fprintf(stderr,
2964 "Warning: vlan %d is not connected to host network\n",
2965 vlan->id);
2966 }
2967}
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