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