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monitor: Port handler_2 to use QDict
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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
71e72a19 32/* Needed early for CONFIG_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>
71e72a19 55#ifdef CONFIG_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
511d2b14
BS		 104#include "qemu-common.h"
105#include "net.h"
106#include "monitor.h"
107#include "sysemu.h"
108#include "qemu-timer.h"
109#include "qemu-char.h"
110#include "audio/audio.h"
111#include "qemu_socket.h"
bb9ea79e 112#include "qemu-log.h"
511d2b14 113
d918f23e 114#include "slirp/libslirp.h"
511d2b14
BS		 115
116
63a01ef8
AL		 117static VLANState *first_vlan;
118
119/***********************************************************/
120/* network device redirectors */
121
122#if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
123static void hex_dump(FILE *f, const uint8_t *buf, int size)
124{
125 int len, i, j, c;
126
127 for(i=0;i<size;i+=16) {
128 len = size - i;
129 if (len > 16)
130 len = 16;
131 fprintf(f, "%08x ", i);
132 for(j=0;j<16;j++) {
133 if (j < len)
134 fprintf(f, " %02x", buf[i+j]);
135 else
136 fprintf(f, " ");
137 }
138 fprintf(f, " ");
139 for(j=0;j<len;j++) {
140 c = buf[i+j];
141 if (c < ' ' || c > '~')
142 c = '.';
143 fprintf(f, "%c", c);
144 }
145 fprintf(f, "\n");
146 }
147}
148#endif
149
150static int parse_macaddr(uint8_t *macaddr, const char *p)
151{
152 int i;
153 char *last_char;
154 long int offset;
155
156 errno = 0;
157 offset = strtol(p, &last_char, 0);
158 if (0 == errno && '\0' == *last_char &&
159 offset >= 0 && offset <= 0xFFFFFF) {
160 macaddr[3] = (offset & 0xFF0000) >> 16;
161 macaddr[4] = (offset & 0xFF00) >> 8;
162 macaddr[5] = offset & 0xFF;
163 return 0;
164 } else {
165 for(i = 0; i < 6; i++) {
166 macaddr[i] = strtol(p, (char **)&p, 16);
167 if (i == 5) {
168 if (*p != '\0')
169 return -1;
170 } else {
171 if (*p != ':' && *p != '-')
172 return -1;
173 p++;
174 }
175 }
176 return 0;
177 }
178
179 return -1;
180}
181
182static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
183{
184 const char *p, *p1;
185 int len;
186 p = *pp;
187 p1 = strchr(p, sep);
188 if (!p1)
189 return -1;
190 len = p1 - p;
191 p1++;
192 if (buf_size > 0) {
193 if (len > buf_size - 1)
194 len = buf_size - 1;
195 memcpy(buf, p, len);
196 buf[len] = '\0';
197 }
198 *pp = p1;
199 return 0;
200}
201
202int parse_host_src_port(struct sockaddr_in *haddr,
203 struct sockaddr_in *saddr,
204 const char *input_str)
205{
206 char *str = strdup(input_str);
207 char *host_str = str;
208 char *src_str;
209 const char *src_str2;
210 char *ptr;
211
212 /*
213 * Chop off any extra arguments at the end of the string which
214 * would start with a comma, then fill in the src port information
215 * if it was provided else use the "any address" and "any port".
216 */
217 if ((ptr = strchr(str,',')))
218 *ptr = '\0';
219
220 if ((src_str = strchr(input_str,'@'))) {
221 *src_str = '\0';
222 src_str++;
223 }
224
225 if (parse_host_port(haddr, host_str) < 0)
226 goto fail;
227
228 src_str2 = src_str;
229 if (!src_str || *src_str == '\0')
230 src_str2 = ":0";
231
232 if (parse_host_port(saddr, src_str2) < 0)
233 goto fail;
234
235 free(str);
236 return(0);
237
238fail:
239 free(str);
240 return -1;
241}
242
243int parse_host_port(struct sockaddr_in *saddr, const char *str)
244{
245 char buf[512];
246 struct hostent *he;
247 const char *p, *r;
248 int port;
249
250 p = str;
251 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
252 return -1;
253 saddr->sin_family = AF_INET;
254 if (buf[0] == '\0') {
255 saddr->sin_addr.s_addr = 0;
256 } else {
cd390083 257 if (qemu_isdigit(buf[0])) {
63a01ef8
AL		 258 if (!inet_aton(buf, &saddr->sin_addr))
259 return -1;
260 } else {
261 if ((he = gethostbyname(buf)) == NULL)
262 return - 1;
263 saddr->sin_addr = *(struct in_addr *)he->h_addr;
264 }
265 }
266 port = strtol(p, (char **)&r, 0);
267 if (r == p)
268 return -1;
269 saddr->sin_port = htons(port);
270 return 0;
271}
272
7cb7434b
AL		 273void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6])
274{
275 snprintf(vc->info_str, sizeof(vc->info_str),
4dda4063
AL		 276 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
277 vc->model,
7cb7434b
AL		 278 macaddr[0], macaddr[1], macaddr[2],
279 macaddr[3], macaddr[4], macaddr[5]);
280}
281
676cff29
AL		 282static char *assign_name(VLANClientState *vc1, const char *model)
283{
284 VLANState *vlan;
285 char buf[256];
286 int id = 0;
287
288 for (vlan = first_vlan; vlan; vlan = vlan->next) {
289 VLANClientState *vc;
290
291 for (vc = vlan->first_client; vc; vc = vc->next)
292 if (vc != vc1 && strcmp(vc->model, model) == 0)
293 id++;
294 }
295
296 snprintf(buf, sizeof(buf), "%s.%d", model, id);
297
298 return strdup(buf);
299}
300
63a01ef8 301VLANClientState *qemu_new_vlan_client(VLANState *vlan,
bf38c1a0 302 const char *model,
7a9f6e4a 303 const char *name,
cda9046b
MM		 304 NetCanReceive *can_receive,
305 NetReceive *receive,
306 NetReceiveIOV *receive_iov,
b946a153 307 NetCleanup *cleanup,
63a01ef8
AL		 308 void *opaque)
309{
310 VLANClientState *vc, **pvc;
311 vc = qemu_mallocz(sizeof(VLANClientState));
bf38c1a0 312 vc->model = strdup(model);
7a9f6e4a
AL		 313 if (name)
314 vc->name = strdup(name);
315 else
316 vc->name = assign_name(vc, model);
cda9046b
MM		 317 vc->can_receive = can_receive;
318 vc->receive = receive;
319 vc->receive_iov = receive_iov;
b946a153 320 vc->cleanup = cleanup;
63a01ef8
AL		 321 vc->opaque = opaque;
322 vc->vlan = vlan;
323
324 vc->next = NULL;
325 pvc = &vlan->first_client;
326 while (*pvc != NULL)
327 pvc = &(*pvc)->next;
328 *pvc = vc;
329 return vc;
330}
331
332void qemu_del_vlan_client(VLANClientState *vc)
333{
334 VLANClientState **pvc = &vc->vlan->first_client;
335
336 while (*pvc != NULL)
337 if (*pvc == vc) {
338 *pvc = vc->next;
b946a153
AL		 339 if (vc->cleanup) {
340 vc->cleanup(vc);
341 }
676cff29 342 free(vc->name);
bf38c1a0 343 free(vc->model);
dad35419 344 qemu_free(vc);
63a01ef8
AL		 345 break;
346 } else
347 pvc = &(*pvc)->next;
348}
349
8b13c4a7
AL		 350VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
351{
352 VLANClientState **pvc = &vlan->first_client;
353
354 while (*pvc != NULL)
355 if ((*pvc)->opaque == opaque)
356 return *pvc;
357 else
358 pvc = &(*pvc)->next;
359
360 return NULL;
361}
362
1a609520
JK		 363static VLANClientState *
364qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
365 const char *client_str)
366{
367 VLANState *vlan;
368 VLANClientState *vc;
369
370 vlan = qemu_find_vlan(vlan_id, 0);
371 if (!vlan) {
372 monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
373 return NULL;
374 }
375
376 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
377 if (!strcmp(vc->name, client_str)) {
378 break;
379 }
380 }
381 if (!vc) {
382 monitor_printf(mon, "can't find device %s on VLAN %d\n",
383 client_str, vlan_id);
384 }
385
386 return vc;
387}
388
2e1e0641 389int qemu_can_send_packet(VLANClientState *sender)
63a01ef8 390{
2e1e0641 391 VLANState *vlan = sender->vlan;
63a01ef8
AL		 392 VLANClientState *vc;
393
2e1e0641
MM		 394 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
395 if (vc == sender) {
396 continue;
397 }
398
cda9046b 399 /* no can_receive() handler, they can always receive */
e3f5ec2b 400 if (!vc->can_receive || vc->can_receive(vc)) {
2e1e0641 401 return 1;
63a01ef8
AL		 402 }
403 }
404 return 0;
405}
406
3e021d40 407static int
764a4d1d 408qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size)
63a01ef8 409{
63a01ef8 410 VLANClientState *vc;
3e021d40 411 int ret = -1;
63a01ef8 412
e94667b9
MM		 413 sender->vlan->delivering = 1;
414
764a4d1d 415 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
3e021d40
MM		 416 ssize_t len;
417
418 if (vc == sender) {
419 continue;
764a4d1d 420 }
3e021d40
MM		 421
422 if (vc->link_down) {
423 ret = size;
424 continue;
425 }
426
427 len = vc->receive(vc, buf, size);
428
429 ret = (ret >= 0) ? ret : len;
764a4d1d 430 }
3e021d40 431
e94667b9
MM		 432 sender->vlan->delivering = 0;
433
3e021d40 434 return ret;
764a4d1d
AL		 435}
436
8cad5516
MM		 437void qemu_purge_queued_packets(VLANClientState *vc)
438{
9da43187 439 VLANPacket *packet, *next;
8cad5516 440
9da43187 441 TAILQ_FOREACH_SAFE(packet, &vc->vlan->send_queue, entry, next) {
8cad5516 442 if (packet->sender == vc) {
9da43187 443 TAILQ_REMOVE(&vc->vlan->send_queue, packet, entry);
8cad5516 444 qemu_free(packet);
8cad5516
MM		 445 }
446 }
447}
448
f3b6c7fc 449void qemu_flush_queued_packets(VLANClientState *vc)
e94667b9 450{
9da43187
JK		 451 while (!TAILQ_EMPTY(&vc->vlan->send_queue)) {
452 VLANPacket *packet;
f3b6c7fc
MM		 453 int ret;
454
9da43187
JK		 455 packet = TAILQ_FIRST(&vc->vlan->send_queue);
456 TAILQ_REMOVE(&vc->vlan->send_queue, packet, entry);
f3b6c7fc
MM		 457
458 ret = qemu_deliver_packet(packet->sender, packet->data, packet->size);
459 if (ret == 0 && packet->sent_cb != NULL) {
9da43187 460 TAILQ_INSERT_HEAD(&vc->vlan->send_queue, packet, entry);
f3b6c7fc
MM		 461 break;
462 }
463
464 if (packet->sent_cb)
783527a9 465 packet->sent_cb(packet->sender, ret);
f3b6c7fc 466
e94667b9
MM		 467 qemu_free(packet);
468 }
469}
470
f3b6c7fc
MM		 471static void qemu_enqueue_packet(VLANClientState *sender,
472 const uint8_t *buf, int size,
473 NetPacketSent *sent_cb)
e94667b9
MM		 474{
475 VLANPacket *packet;
476
477 packet = qemu_malloc(sizeof(VLANPacket) + size);
e94667b9
MM		 478 packet->sender = sender;
479 packet->size = size;
f3b6c7fc 480 packet->sent_cb = sent_cb;
e94667b9 481 memcpy(packet->data, buf, size);
9da43187
JK		 482
483 TAILQ_INSERT_TAIL(&sender->vlan->send_queue, packet, entry);
e94667b9
MM		 484}
485
f3b6c7fc
MM		 486ssize_t qemu_send_packet_async(VLANClientState *sender,
487 const uint8_t *buf, int size,
488 NetPacketSent *sent_cb)
764a4d1d 489{
f3b6c7fc 490 int ret;
764a4d1d 491
f3b6c7fc
MM		 492 if (sender->link_down) {
493 return size;
494 }
436e5e53 495
63a01ef8 496#ifdef DEBUG_NET
f3b6c7fc 497 printf("vlan %d send:\n", sender->vlan->id);
63a01ef8
AL		 498 hex_dump(stdout, buf, size);
499#endif
f3b6c7fc
MM		 500
501 if (sender->vlan->delivering) {
502 qemu_enqueue_packet(sender, buf, size, NULL);
503 return size;
504 }
505
506 ret = qemu_deliver_packet(sender, buf, size);
507 if (ret == 0 && sent_cb != NULL) {
508 qemu_enqueue_packet(sender, buf, size, sent_cb);
509 return 0;
63a01ef8 510 }
e94667b9 511
f3b6c7fc
MM		 512 qemu_flush_queued_packets(sender);
513
514 return ret;
515}
516
517void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
518{
519 qemu_send_packet_async(vc, buf, size, NULL);
63a01ef8
AL		 520}
521
fbe78f4f
AL		 522static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
523 int iovcnt)
524{
525 uint8_t buffer[4096];
526 size_t offset = 0;
527 int i;
528
529 for (i = 0; i < iovcnt; i++) {
530 size_t len;
531
532 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
533 memcpy(buffer + offset, iov[i].iov_base, len);
534 offset += len;
535 }
536
f3b6c7fc 537 return vc->receive(vc, buffer, offset);
fbe78f4f
AL		 538}
539
e0e7877a
AL		 540static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
541{
542 size_t offset = 0;
543 int i;
544
545 for (i = 0; i < iovcnt; i++)
546 offset += iov[i].iov_len;
547 return offset;
548}
549
e94667b9
MM		 550static int qemu_deliver_packet_iov(VLANClientState *sender,
551 const struct iovec *iov, int iovcnt)
fbe78f4f 552{
fbe78f4f 553 VLANClientState *vc;
e94667b9
MM		 554 int ret = -1;
555
556 sender->vlan->delivering = 1;
557
558 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
559 ssize_t len;
560
561 if (vc == sender) {
562 continue;
563 }
564
565 if (vc->link_down) {
566 ret = calc_iov_length(iov, iovcnt);
567 continue;
568 }
569
570 if (vc->receive_iov) {
571 len = vc->receive_iov(vc, iov, iovcnt);
572 } else {
573 len = vc_sendv_compat(vc, iov, iovcnt);
574 }
575
576 ret = (ret >= 0) ? ret : len;
577 }
578
579 sender->vlan->delivering = 0;
580
581 return ret;
582}
583
584static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
f3b6c7fc
MM		 585 const struct iovec *iov, int iovcnt,
586 NetPacketSent *sent_cb)
e94667b9 587{
c27ff608 588 VLANPacket *packet;
e94667b9 589 size_t max_len = 0;
c27ff608 590 int i;
fbe78f4f 591
e94667b9 592 max_len = calc_iov_length(iov, iovcnt);
e0e7877a 593
e94667b9 594 packet = qemu_malloc(sizeof(VLANPacket) + max_len);
e94667b9 595 packet->sender = sender;
f3b6c7fc 596 packet->sent_cb = sent_cb;
e94667b9 597 packet->size = 0;
c27ff608 598
e94667b9
MM		 599 for (i = 0; i < iovcnt; i++) {
600 size_t len = iov[i].iov_len;
c27ff608 601
e94667b9
MM		 602 memcpy(packet->data + packet->size, iov[i].iov_base, len);
603 packet->size += len;
604 }
fbe78f4f 605
9da43187 606 TAILQ_INSERT_TAIL(&sender->vlan->send_queue, packet, entry);
fbe78f4f 607
e94667b9
MM		 608 return packet->size;
609}
fbe78f4f 610
f3b6c7fc
MM		 611ssize_t qemu_sendv_packet_async(VLANClientState *sender,
612 const struct iovec *iov, int iovcnt,
613 NetPacketSent *sent_cb)
e94667b9
MM		 614{
615 int ret;
616
617 if (sender->link_down) {
618 return calc_iov_length(iov, iovcnt);
619 }
620
621 if (sender->vlan->delivering) {
f3b6c7fc 622 return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL);
fbe78f4f
AL		 623 }
624
e94667b9 625 ret = qemu_deliver_packet_iov(sender, iov, iovcnt);
f3b6c7fc
MM		 626 if (ret == 0 && sent_cb != NULL) {
627 qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb);
628 return 0;
629 }
e94667b9
MM		 630
631 qemu_flush_queued_packets(sender);
632
633 return ret;
fbe78f4f
AL		 634}
635
f3b6c7fc
MM		 636ssize_t
637qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
638{
639 return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
640}
641
10ae5a7a
JK		 642static void config_error(Monitor *mon, const char *fmt, ...)
643{
644 va_list ap;
645
646 va_start(ap, fmt);
647 if (mon) {
648 monitor_vprintf(mon, fmt, ap);
649 } else {
650 fprintf(stderr, "qemu: ");
651 vfprintf(stderr, fmt, ap);
652 exit(1);
653 }
654 va_end(ap);
655}
656
63a01ef8
AL		 657#if defined(CONFIG_SLIRP)
658
659/* slirp network adapter */
660
c92ef6a2
JK		 661#define SLIRP_CFG_HOSTFWD 1
662#define SLIRP_CFG_LEGACY 2
ad196a9d 663
b8e8af38
JK		 664struct slirp_config_str {
665 struct slirp_config_str *next;
ad196a9d
JK		 666 int flags;
667 char str[1024];
c92ef6a2 668 int legacy_format;
b8e8af38
JK		 669};
670
9f8bd042 671typedef struct SlirpState {
b1c99fcd 672 TAILQ_ENTRY(SlirpState) entry;
9f8bd042
JK		 673 VLANClientState *vc;
674 Slirp *slirp;
28432466
JK		 675#ifndef _WIN32
676 char smb_dir[128];
677#endif
9f8bd042
JK		 678} SlirpState;
679
ad196a9d
JK		 680static struct slirp_config_str *slirp_configs;
681const char *legacy_tftp_prefix;
682const char *legacy_bootp_filename;
b1c99fcd
JK		 683static TAILQ_HEAD(slirp_stacks, SlirpState) slirp_stacks =
684 TAILQ_HEAD_INITIALIZER(slirp_stacks);
63a01ef8 685
9f8bd042 686static void slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str,
3c6a0580 687 int legacy_format);
9f8bd042 688static void slirp_guestfwd(SlirpState *s, Monitor *mon, const char *config_str,
c92ef6a2 689 int legacy_format);
ad196a9d 690
c5b76b38 691#ifndef _WIN32
ad196a9d
JK		 692static const char *legacy_smb_export;
693
492efabd 694static void slirp_smb(SlirpState *s, Monitor *mon, const char *exported_dir,
9f8bd042 695 struct in_addr vserver_addr);
28432466
JK		 696static void slirp_smb_cleanup(SlirpState *s);
697#else
698static inline void slirp_smb_cleanup(SlirpState *s) { }
c5b76b38 699#endif
b8e8af38 700
9f8bd042 701int slirp_can_output(void *opaque)
63a01ef8 702{
9f8bd042
JK		 703 SlirpState *s = opaque;
704
705 return qemu_can_send_packet(s->vc);
63a01ef8
AL		 706}
707
9f8bd042 708void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len)
63a01ef8 709{
9f8bd042
JK		 710 SlirpState *s = opaque;
711
63a01ef8
AL		 712#ifdef DEBUG_SLIRP
713 printf("slirp output:\n");
714 hex_dump(stdout, pkt, pkt_len);
715#endif
9f8bd042 716 qemu_send_packet(s->vc, pkt, pkt_len);
63a01ef8
AL		 717}
718
4f1c942b 719static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 720{
9f8bd042
JK		 721 SlirpState *s = vc->opaque;
722
63a01ef8
AL		 723#ifdef DEBUG_SLIRP
724 printf("slirp input:\n");
725 hex_dump(stdout, buf, size);
726#endif
9f8bd042 727 slirp_input(s->slirp, buf, size);
4f1c942b 728 return size;
63a01ef8
AL		 729}
730
8d6249a7
AL		 731static void net_slirp_cleanup(VLANClientState *vc)
732{
ad0d8c4c
JK		 733 SlirpState *s = vc->opaque;
734
735 slirp_cleanup(s->slirp);
28432466 736 slirp_smb_cleanup(s);
b1c99fcd 737 TAILQ_REMOVE(&slirp_stacks, s, entry);
ad0d8c4c 738 qemu_free(s);
8d6249a7
AL		 739}
740
ad196a9d 741static int net_slirp_init(Monitor *mon, VLANState *vlan, const char *model,
c92ef6a2
JK		 742 const char *name, int restricted,
743 const char *vnetwork, const char *vhost,
744 const char *vhostname, const char *tftp_export,
745 const char *bootfile, const char *vdhcp_start,
746 const char *vnameserver, const char *smb_export,
747 const char *vsmbserver)
63a01ef8 748{
ad0d8c4c 749 /* default settings according to historic slirp */
8389e7f4
AL		 750 struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */
751 struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */
ad0d8c4c
JK		 752 struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */
753 struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */
754 struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */
c92ef6a2 755#ifndef _WIN32
ad0d8c4c 756 struct in_addr smbsrv = { .s_addr = 0 };
c92ef6a2 757#endif
ad0d8c4c
JK		 758 SlirpState *s;
759 char buf[20];
760 uint32_t addr;
761 int shift;
762 char *end;
763
764 if (!tftp_export) {
765 tftp_export = legacy_tftp_prefix;
766 }
767 if (!bootfile) {
768 bootfile = legacy_bootp_filename;
769 }
c92ef6a2 770
ad0d8c4c
JK		 771 if (vnetwork) {
772 if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) {
773 if (!inet_aton(vnetwork, &net)) {
774 return -1;
775 }
776 addr = ntohl(net.s_addr);
777 if (!(addr & 0x80000000)) {
778 mask.s_addr = htonl(0xff000000); /* class A */
779 } else if ((addr & 0xfff00000) == 0xac100000) {
780 mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */
781 } else if ((addr & 0xc0000000) == 0x80000000) {
782 mask.s_addr = htonl(0xffff0000); /* class B */
783 } else if ((addr & 0xffff0000) == 0xc0a80000) {
784 mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */
785 } else if ((addr & 0xffff0000) == 0xc6120000) {
786 mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */
787 } else if ((addr & 0xe0000000) == 0xe0000000) {
788 mask.s_addr = htonl(0xffffff00); /* class C */
c92ef6a2 789 } else {
ad0d8c4c
JK		 790 mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */
791 }
792 } else {
793 if (!inet_aton(buf, &net)) {
794 return -1;
795 }
796 shift = strtol(vnetwork, &end, 10);
797 if (*end != '\0') {
798 if (!inet_aton(vnetwork, &mask)) {
c92ef6a2 799 return -1;
c92ef6a2 800 }
ad0d8c4c
JK		 801 } else if (shift < 4 || shift > 32) {
802 return -1;
803 } else {
804 mask.s_addr = htonl(0xffffffff << (32 - shift));
c92ef6a2 805 }
c92ef6a2 806 }
ad0d8c4c
JK		 807 net.s_addr &= mask.s_addr;
808 host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr);
809 dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr);
810 dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr);
811 }
c92ef6a2 812
ad0d8c4c
JK		 813 if (vhost && !inet_aton(vhost, &host)) {
814 return -1;
815 }
816 if ((host.s_addr & mask.s_addr) != net.s_addr) {
817 return -1;
818 }
c92ef6a2 819
ad0d8c4c
JK		 820 if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) {
821 return -1;
822 }
823 if ((dhcp.s_addr & mask.s_addr) != net.s_addr ||
824 dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) {
825 return -1;
826 }
c92ef6a2 827
ad0d8c4c
JK		 828 if (vnameserver && !inet_aton(vnameserver, &dns)) {
829 return -1;
830 }
831 if ((dns.s_addr & mask.s_addr) != net.s_addr ||
832 dns.s_addr == host.s_addr) {
833 return -1;
834 }
c92ef6a2
JK		 835
836#ifndef _WIN32
ad0d8c4c
JK		 837 if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) {
838 return -1;
839 }
c92ef6a2
JK		 840#endif
841
ad0d8c4c
JK		 842 s = qemu_mallocz(sizeof(SlirpState));
843 s->slirp = slirp_init(restricted, net, mask, host, vhostname,
844 tftp_export, bootfile, dhcp, dns, s);
b1c99fcd 845 TAILQ_INSERT_TAIL(&slirp_stacks, s, entry);
b8e8af38 846
ad0d8c4c
JK		 847 while (slirp_configs) {
848 struct slirp_config_str *config = slirp_configs;
b8e8af38 849
ad0d8c4c
JK		 850 if (config->flags & SLIRP_CFG_HOSTFWD) {
851 slirp_hostfwd(s, mon, config->str,
852 config->flags & SLIRP_CFG_LEGACY);
853 } else {
854 slirp_guestfwd(s, mon, config->str,
855 config->flags & SLIRP_CFG_LEGACY);
b8e8af38 856 }
ad0d8c4c
JK		 857 slirp_configs = config->next;
858 qemu_free(config);
859 }
b8e8af38 860#ifndef _WIN32
ad0d8c4c
JK		 861 if (!smb_export) {
862 smb_export = legacy_smb_export;
863 }
864 if (smb_export) {
492efabd 865 slirp_smb(s, mon, smb_export, smbsrv);
63a01ef8 866 }
ad0d8c4c 867#endif
b8e8af38 868
9f8bd042
JK		 869 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive, NULL,
870 net_slirp_cleanup, s);
fc57bc57
JK		 871 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
872 "net=%s, restricted=%c", inet_ntoa(net), restricted ? 'y' : 'n');
63a01ef8
AL		 873 return 0;
874}
875
f13b572c
JK		 876static SlirpState *slirp_lookup(Monitor *mon, const char *vlan,
877 const char *stack)
878{
879 VLANClientState *vc;
880
881 if (vlan) {
882 vc = qemu_find_vlan_client_by_name(mon, strtol(vlan, NULL, 0), stack);
883 if (!vc) {
884 return NULL;
885 }
886 if (strcmp(vc->model, "user")) {
887 monitor_printf(mon, "invalid device specified\n");
888 return NULL;
889 }
890 return vc->opaque;
891 } else {
892 if (TAILQ_EMPTY(&slirp_stacks)) {
893 monitor_printf(mon, "user mode network stack not in use\n");
894 return NULL;
895 }
896 return TAILQ_FIRST(&slirp_stacks);
897 }
898}
899
900void net_slirp_hostfwd_remove(Monitor *mon, const char *arg1,
901 const char *arg2, const char *arg3)
c1261d8d 902{
3c6a0580 903 struct in_addr host_addr = { .s_addr = INADDR_ANY };
c1261d8d
AG		 904 int host_port;
905 char buf[256] = "";
f13b572c
JK		 906 const char *src_str, *p;
907 SlirpState *s;
c1261d8d 908 int is_udp = 0;
9c12a6f2 909 int err;
c1261d8d 910
f13b572c
JK		 911 if (arg2) {
912 s = slirp_lookup(mon, arg1, arg2);
913 src_str = arg3;
914 } else {
915 s = slirp_lookup(mon, NULL, NULL);
916 src_str = arg1;
917 }
918 if (!s) {
c1261d8d 919 return;
f3546deb 920 }
c1261d8d 921
3c6a0580 922 if (!src_str || !src_str[0])
c1261d8d
AG		 923 goto fail_syntax;
924
f13b572c 925 p = src_str;
c1261d8d
AG		 926 get_str_sep(buf, sizeof(buf), &p, ':');
927
928 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
929 is_udp = 0;
930 } else if (!strcmp(buf, "udp")) {
931 is_udp = 1;
932 } else {
933 goto fail_syntax;
934 }
935
3c6a0580
JK		 936 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
937 goto fail_syntax;
938 }
939 if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) {
940 goto fail_syntax;
941 }
942
c1261d8d
AG		 943 host_port = atoi(p);
944
b1c99fcd 945 err = slirp_remove_hostfwd(TAILQ_FIRST(&slirp_stacks)->slirp, is_udp,
9f8bd042 946 host_addr, host_port);
c1261d8d 947
9c12a6f2
JK		 948 monitor_printf(mon, "host forwarding rule for %s %s\n", src_str,
949 err ? "removed" : "not found");
c1261d8d
AG		 950 return;
951
952 fail_syntax:
953 monitor_printf(mon, "invalid format\n");
954}
955
9f8bd042 956static void slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str,
3c6a0580 957 int legacy_format)
63a01ef8 958{
3c6a0580 959 struct in_addr host_addr = { .s_addr = INADDR_ANY };
c92ef6a2 960 struct in_addr guest_addr = { .s_addr = 0 };
63a01ef8 961 int host_port, guest_port;
b8e8af38 962 const char *p;
c92ef6a2 963 char buf[256];
b8e8af38 964 int is_udp;
c92ef6a2 965 char *end;
1c6ed9f3 966
63a01ef8 967 p = redir_str;
f13b572c 968 if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
d4ebe193 969 goto fail_syntax;
b8e8af38 970 }
d4ebe193 971 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
63a01ef8
AL		 972 is_udp = 0;
973 } else if (!strcmp(buf, "udp")) {
974 is_udp = 1;
975 } else {
d4ebe193 976 goto fail_syntax;
63a01ef8
AL		 977 }
978
3c6a0580
JK		 979 if (!legacy_format) {
980 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
981 goto fail_syntax;
982 }
983 if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) {
984 goto fail_syntax;
985 }
986 }
987
988 if (get_str_sep(buf, sizeof(buf), &p, legacy_format ? ':' : '-') < 0) {
d4ebe193 989 goto fail_syntax;
b8e8af38 990 }
c92ef6a2
JK		 991 host_port = strtol(buf, &end, 0);
992 if (*end != '\0' || host_port < 1 || host_port > 65535) {
d4ebe193 993 goto fail_syntax;
b8e8af38 994 }
63a01ef8 995
b8e8af38 996 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
d4ebe193 997 goto fail_syntax;
b8e8af38 998 }
c92ef6a2 999 if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) {
d4ebe193 1000 goto fail_syntax;
b8e8af38 1001 }
63a01ef8 1002
c92ef6a2
JK		 1003 guest_port = strtol(p, &end, 0);
1004 if (*end != '\0' || guest_port < 1 || guest_port > 65535) {
d4ebe193 1005 goto fail_syntax;
b8e8af38 1006 }
63a01ef8 1007
9f8bd042
JK		 1008 if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr,
1009 guest_port) < 0) {
c92ef6a2
JK		 1010 config_error(mon, "could not set up host forwarding rule '%s'\n",
1011 redir_str);
63a01ef8
AL		 1012 }
1013 return;
d4ebe193
AL		 1014
1015 fail_syntax:
c92ef6a2 1016 config_error(mon, "invalid host forwarding rule '%s'\n", redir_str);
63a01ef8
AL		 1017}
1018
f13b572c
JK		 1019void net_slirp_hostfwd_add(Monitor *mon, const char *arg1,
1020 const char *arg2, const char *arg3)
b8e8af38 1021{
f13b572c
JK		 1022 const char *redir_str;
1023 SlirpState *s;
1024
1025 if (arg2) {
1026 s = slirp_lookup(mon, arg1, arg2);
1027 redir_str = arg3;
1028 } else {
1029 s = slirp_lookup(mon, NULL, NULL);
1030 redir_str = arg1;
1031 }
1032 if (s) {
1033 slirp_hostfwd(s, mon, redir_str, 0);
b8e8af38
JK		 1034 }
1035
f3546deb
JK		 1036}
1037
1038void net_slirp_redir(const char *redir_str)
1039{
1040 struct slirp_config_str *config;
1041
b1c99fcd 1042 if (TAILQ_EMPTY(&slirp_stacks)) {
f3546deb
JK		 1043 config = qemu_malloc(sizeof(*config));
1044 pstrcpy(config->str, sizeof(config->str), redir_str);
3c6a0580 1045 config->flags = SLIRP_CFG_HOSTFWD | SLIRP_CFG_LEGACY;
f3546deb
JK		 1046 config->next = slirp_configs;
1047 slirp_configs = config;
b8e8af38
JK		 1048 return;
1049 }
1050
b1c99fcd 1051 slirp_hostfwd(TAILQ_FIRST(&slirp_stacks), NULL, redir_str, 1);
b8e8af38
JK		 1052}
1053
63a01ef8
AL		 1054#ifndef _WIN32
1055
63a01ef8 1056/* automatic user mode samba server configuration */
28432466 1057static void slirp_smb_cleanup(SlirpState *s)
63a01ef8 1058{
28432466 1059 char cmd[128];
09c18925 1060
28432466
JK		 1061 if (s->smb_dir[0] != '\0') {
1062 snprintf(cmd, sizeof(cmd), "rm -rf %s", s->smb_dir);
1063 system(cmd);
1064 s->smb_dir[0] = '\0';
1065 }
63a01ef8
AL		 1066}
1067
492efabd 1068static void slirp_smb(SlirpState* s, Monitor *mon, const char *exported_dir,
9f8bd042 1069 struct in_addr vserver_addr)
63a01ef8 1070{
28432466
JK		 1071 static int instance;
1072 char smb_conf[128];
1073 char smb_cmdline[128];
63a01ef8
AL		 1074 FILE *f;
1075
28432466
JK		 1076 snprintf(s->smb_dir, sizeof(s->smb_dir), "/tmp/qemu-smb.%ld-%d",
1077 (long)getpid(), instance++);
1078 if (mkdir(s->smb_dir, 0700) < 0) {
1079 config_error(mon, "could not create samba server dir '%s'\n",
1080 s->smb_dir);
492efabd 1081 return;
63a01ef8 1082 }
28432466 1083 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", s->smb_dir, "smb.conf");
63a01ef8
AL		 1084
1085 f = fopen(smb_conf, "w");
1086 if (!f) {
28432466 1087 slirp_smb_cleanup(s);
492efabd
JK		 1088 config_error(mon, "could not create samba server "
1089 "configuration file '%s'\n", smb_conf);
1090 return;
63a01ef8
AL		 1091 }
1092 fprintf(f,
1093 "[global]\n"
1094 "private dir=%s\n"
1095 "smb ports=0\n"
1096 "socket address=127.0.0.1\n"
1097 "pid directory=%s\n"
1098 "lock directory=%s\n"
1099 "log file=%s/log.smbd\n"
1100 "smb passwd file=%s/smbpasswd\n"
1101 "security = share\n"
1102 "[qemu]\n"
1103 "path=%s\n"
1104 "read only=no\n"
1105 "guest ok=yes\n",
28432466
JK		 1106 s->smb_dir,
1107 s->smb_dir,
1108 s->smb_dir,
1109 s->smb_dir,
1110 s->smb_dir,
63a01ef8
AL		 1111 exported_dir
1112 );
1113 fclose(f);
63a01ef8
AL		 1114
1115 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
1116 SMBD_COMMAND, smb_conf);
1117
bb53fc53 1118 if (slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 139) < 0) {
28432466 1119 slirp_smb_cleanup(s);
492efabd 1120 config_error(mon, "conflicting/invalid smbserver address\n");
c92ef6a2 1121 }
63a01ef8
AL		 1122}
1123
ad196a9d 1124/* automatic user mode samba server configuration (legacy interface) */
b8e8af38
JK		 1125void net_slirp_smb(const char *exported_dir)
1126{
c92ef6a2
JK		 1127 struct in_addr vserver_addr = { .s_addr = 0 };
1128
ad196a9d 1129 if (legacy_smb_export) {
b8e8af38
JK		 1130 fprintf(stderr, "-smb given twice\n");
1131 exit(1);
1132 }
ad196a9d 1133 legacy_smb_export = exported_dir;
b1c99fcd 1134 if (!TAILQ_EMPTY(&slirp_stacks)) {
492efabd
JK		 1135 slirp_smb(TAILQ_FIRST(&slirp_stacks), NULL, exported_dir,
1136 vserver_addr);
b8e8af38
JK		 1137 }
1138}
1139
63a01ef8 1140#endif /* !defined(_WIN32) */
b8e8af38 1141
c92ef6a2 1142struct GuestFwd {
8ca9217d 1143 CharDriverState *hd;
c92ef6a2 1144 struct in_addr server;
8ca9217d 1145 int port;
9f8bd042 1146 Slirp *slirp;
511d2b14 1147};
8ca9217d 1148
c92ef6a2 1149static int guestfwd_can_read(void *opaque)
8ca9217d 1150{
c92ef6a2 1151 struct GuestFwd *fwd = opaque;
9f8bd042 1152 return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port);
8ca9217d
AL		 1153}
1154
c92ef6a2 1155static void guestfwd_read(void *opaque, const uint8_t *buf, int size)
8ca9217d 1156{
c92ef6a2 1157 struct GuestFwd *fwd = opaque;
9f8bd042 1158 slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size);
8ca9217d
AL		 1159}
1160
9f8bd042 1161static void slirp_guestfwd(SlirpState *s, Monitor *mon, const char *config_str,
c92ef6a2 1162 int legacy_format)
ad196a9d 1163{
c92ef6a2
JK		 1164 struct in_addr server = { .s_addr = 0 };
1165 struct GuestFwd *fwd;
1166 const char *p;
1167 char buf[128];
1168 char *end;
ad196a9d
JK		 1169 int port;
1170
c92ef6a2
JK		 1171 p = config_str;
1172 if (legacy_format) {
1173 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
1174 goto fail_syntax;
1175 }
1176 } else {
1177 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
1178 goto fail_syntax;
1179 }
1180 if (strcmp(buf, "tcp") && buf[0] != '\0') {
1181 goto fail_syntax;
1182 }
1183 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
1184 goto fail_syntax;
1185 }
1186 if (buf[0] != '\0' && !inet_aton(buf, &server)) {
1187 goto fail_syntax;
1188 }
1189 if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) {
1190 goto fail_syntax;
1191 }
1192 }
1193 port = strtol(buf, &end, 10);
1194 if (*end != '\0' || port < 1 || port > 65535) {
1195 goto fail_syntax;
ad196a9d 1196 }
ad196a9d 1197
c92ef6a2
JK		 1198 fwd = qemu_malloc(sizeof(struct GuestFwd));
1199 snprintf(buf, sizeof(buf), "guestfwd.tcp:%d", port);
1200 fwd->hd = qemu_chr_open(buf, p, NULL);
1201 if (!fwd->hd) {
1202 config_error(mon, "could not open guest forwarding device '%s'\n",
1203 buf);
1204 qemu_free(fwd);
ad196a9d
JK		 1205 return;
1206 }
ad196a9d 1207
bb53fc53 1208 if (slirp_add_exec(s->slirp, 3, fwd->hd, &server, port) < 0) {
c92ef6a2
JK		 1209 config_error(mon, "conflicting/invalid host:port in guest forwarding "
1210 "rule '%s'\n", config_str);
1211 qemu_free(fwd);
1212 return;
1213 }
bb53fc53
JK		 1214 fwd->server = server;
1215 fwd->port = port;
1216 fwd->slirp = s->slirp;
1217
c92ef6a2
JK		 1218 qemu_chr_add_handlers(fwd->hd, guestfwd_can_read, guestfwd_read,
1219 NULL, fwd);
ad196a9d 1220 return;
c92ef6a2
JK		 1221
1222 fail_syntax:
1223 config_error(mon, "invalid guest forwarding rule '%s'\n", config_str);
ad196a9d
JK		 1224}
1225
6dbe553f
JK		 1226void do_info_usernet(Monitor *mon)
1227{
b1c99fcd 1228 SlirpState *s;
9f8bd042 1229
b1c99fcd
JK		 1230 TAILQ_FOREACH(s, &slirp_stacks, entry) {
1231 monitor_printf(mon, "VLAN %d (%s):\n", s->vc->vlan->id, s->vc->name);
1232 slirp_connection_info(s->slirp, mon);
9f8bd042 1233 }
6dbe553f
JK		 1234}
1235
63a01ef8
AL		 1236#endif /* CONFIG_SLIRP */
1237
1238#if !defined(_WIN32)
1239
1240typedef struct TAPState {
1241 VLANClientState *vc;
1242 int fd;
1243 char down_script[1024];
973cbd37 1244 char down_script_arg[128];
5b01e886 1245 uint8_t buf[4096];
b664e367 1246 unsigned int read_poll : 1;
1f7babf6 1247 unsigned int write_poll : 1;
63a01ef8
AL		 1248} TAPState;
1249
b946a153
AL		 1250static int launch_script(const char *setup_script, const char *ifname, int fd);
1251
b664e367
MM		 1252static int tap_can_send(void *opaque);
1253static void tap_send(void *opaque);
1f7babf6 1254static void tap_writable(void *opaque);
b664e367
MM		 1255
1256static void tap_update_fd_handler(TAPState *s)
1257{
1258 qemu_set_fd_handler2(s->fd,
1259 s->read_poll ? tap_can_send : NULL,
1260 s->read_poll ? tap_send : NULL,
1f7babf6 1261 s->write_poll ? tap_writable : NULL,
b664e367
MM		 1262 s);
1263}
1264
1265static void tap_read_poll(TAPState *s, int enable)
1266{
1267 s->read_poll = !!enable;
1268 tap_update_fd_handler(s);
1269}
1270
1f7babf6
MM		 1271static void tap_write_poll(TAPState *s, int enable)
1272{
1273 s->write_poll = !!enable;
1274 tap_update_fd_handler(s);
1275}
1276
1277static void tap_writable(void *opaque)
1278{
1279 TAPState *s = opaque;
1280
1281 tap_write_poll(s, 0);
1282
1283 qemu_flush_queued_packets(s->vc);
1284}
1285
e3f5ec2b 1286static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov,
b535b7b2
AL		 1287 int iovcnt)
1288{
e3f5ec2b 1289 TAPState *s = vc->opaque;
b535b7b2
AL		 1290 ssize_t len;
1291
1292 do {
1293 len = writev(s->fd, iov, iovcnt);
1f7babf6
MM		 1294 } while (len == -1 && errno == EINTR);
1295
1296 if (len == -1 && errno == EAGAIN) {
1297 tap_write_poll(s, 1);
1298 return 0;
1299 }
b535b7b2
AL		 1300
1301 return len;
1302}
b535b7b2 1303
4f1c942b 1304static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 1305{
e3f5ec2b 1306 TAPState *s = vc->opaque;
4f1c942b
MM		 1307 ssize_t len;
1308
1309 do {
1310 len = write(s->fd, buf, size);
1311 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
1312
1313 return len;
63a01ef8
AL		 1314}
1315
3471b757
MM		 1316static int tap_can_send(void *opaque)
1317{
1318 TAPState *s = opaque;
1319
1320 return qemu_can_send_packet(s->vc);
1321}
1322
63a01ef8 1323#ifdef __sun__
5a6d8815
MM		 1324static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1325{
63a01ef8
AL		 1326 struct strbuf sbuf;
1327 int f = 0;
5a6d8815
MM		 1328
1329 sbuf.maxlen = maxlen;
3f4cb3d3 1330 sbuf.buf = (char *)buf;
5a6d8815
MM		 1331
1332 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
1333}
63a01ef8 1334#else
5a6d8815
MM		 1335static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1336{
1337 return read(tapfd, buf, maxlen);
1338}
63a01ef8 1339#endif
5a6d8815 1340
783527a9 1341static void tap_send_completed(VLANClientState *vc, ssize_t len)
e19eb224
MM		 1342{
1343 TAPState *s = vc->opaque;
b664e367 1344 tap_read_poll(s, 1);
e19eb224
MM		 1345}
1346
5a6d8815
MM		 1347static void tap_send(void *opaque)
1348{
1349 TAPState *s = opaque;
5a6d8815
MM		 1350 int size;
1351
e19eb224
MM		 1352 do {
1353 size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
1354 if (size <= 0) {
1355 break;
1356 }
1357
1358 size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed);
1359 if (size == 0) {
b664e367 1360 tap_read_poll(s, 0);
e19eb224
MM		 1361 }
1362 } while (size > 0);
63a01ef8
AL		 1363}
1364
0df0ff6d 1365#ifdef TUNSETSNDBUF
fc5b81d1
MM		 1366/* sndbuf should be set to a value lower than the tx queue
1367 * capacity of any destination network interface.
1368 * Ethernet NICs generally have txqueuelen=1000, so 1Mb is
1369 * a good default, given a 1500 byte MTU.
1370 */
1371#define TAP_DEFAULT_SNDBUF 1024*1024
1372
1373static void tap_set_sndbuf(TAPState *s, const char *sndbuf_str, Monitor *mon)
1374{
1375 int sndbuf = TAP_DEFAULT_SNDBUF;
1376
1377 if (sndbuf_str) {
1378 sndbuf = atoi(sndbuf_str);
1379 }
1380
1381 if (!sndbuf) {
1382 sndbuf = INT_MAX;
1383 }
1384
d026fb6d 1385 if (ioctl(s->fd, TUNSETSNDBUF, &sndbuf) == -1 && sndbuf_str) {
0df0ff6d
MM		 1386 config_error(mon, "TUNSETSNDBUF ioctl failed: %s\n",
1387 strerror(errno));
1388 }
fc5b81d1 1389}
0df0ff6d 1390#else
fc5b81d1
MM		 1391static void tap_set_sndbuf(TAPState *s, const char *sndbuf_str, Monitor *mon)
1392{
1393 if (sndbuf_str) {
1394 config_error(mon, "No '-net tap,sndbuf=<nbytes>' support available\n");
1395 }
0df0ff6d 1396}
fc5b81d1 1397#endif /* TUNSETSNDBUF */
0df0ff6d 1398
b946a153
AL		 1399static void tap_cleanup(VLANClientState *vc)
1400{
1401 TAPState *s = vc->opaque;
1402
b9adce2c
MM		 1403 qemu_purge_queued_packets(vc);
1404
b946a153
AL		 1405 if (s->down_script[0])
1406 launch_script(s->down_script, s->down_script_arg, s->fd);
1407
b664e367 1408 tap_read_poll(s, 0);
1f7babf6 1409 tap_write_poll(s, 0);
b946a153
AL		 1410 close(s->fd);
1411 qemu_free(s);
1412}
1413
63a01ef8
AL		 1414/* fd support */
1415
7a9f6e4a
AL		 1416static TAPState *net_tap_fd_init(VLANState *vlan,
1417 const char *model,
1418 const char *name,
1419 int fd)
63a01ef8
AL		 1420{
1421 TAPState *s;
1422
1423 s = qemu_mallocz(sizeof(TAPState));
63a01ef8 1424 s->fd = fd;
463af534
MM		 1425 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
1426 tap_receive_iov, tap_cleanup, s);
b664e367 1427 tap_read_poll(s, 1);
7cb7434b 1428 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
63a01ef8
AL		 1429 return s;
1430}
1431
71e72a19 1432#if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__)
63a01ef8
AL		 1433static int tap_open(char *ifname, int ifname_size)
1434{
1435 int fd;
1436 char *dev;
1437 struct stat s;
1438
1439 TFR(fd = open("/dev/tap", O_RDWR));
1440 if (fd < 0) {
1441 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1442 return -1;
1443 }
1444
1445 fstat(fd, &s);
1446 dev = devname(s.st_rdev, S_IFCHR);
1447 pstrcpy(ifname, ifname_size, dev);
1448
1449 fcntl(fd, F_SETFL, O_NONBLOCK);
1450 return fd;
1451}
1452#elif defined(__sun__)
1453#define TUNNEWPPA (('T'<<16) | 0x0001)
1454/*
1455 * Allocate TAP device, returns opened fd.
1456 * Stores dev name in the first arg(must be large enough).
1457 */
3f4cb3d3 1458static int tap_alloc(char *dev, size_t dev_size)
63a01ef8
AL		 1459{
1460 int tap_fd, if_fd, ppa = -1;
1461 static int ip_fd = 0;
1462 char *ptr;
1463
1464 static int arp_fd = 0;
1465 int ip_muxid, arp_muxid;
1466 struct strioctl strioc_if, strioc_ppa;
1467 int link_type = I_PLINK;;
1468 struct lifreq ifr;
1469 char actual_name[32] = "";
1470
1471 memset(&ifr, 0x0, sizeof(ifr));
1472
1473 if( *dev ){
1474 ptr = dev;
47398b9c 1475 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
63a01ef8
AL		 1476 ppa = atoi(ptr);
1477 }
1478
1479 /* Check if IP device was opened */
1480 if( ip_fd )
1481 close(ip_fd);
1482
1483 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1484 if (ip_fd < 0) {
1485 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1486 return -1;
1487 }
1488
1489 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1490 if (tap_fd < 0) {
1491 syslog(LOG_ERR, "Can't open /dev/tap");
1492 return -1;
1493 }
1494
1495 /* Assign a new PPA and get its unit number. */
1496 strioc_ppa.ic_cmd = TUNNEWPPA;
1497 strioc_ppa.ic_timout = 0;
1498 strioc_ppa.ic_len = sizeof(ppa);
1499 strioc_ppa.ic_dp = (char *)&ppa;
1500 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1501 syslog (LOG_ERR, "Can't assign new interface");
1502
1503 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1504 if (if_fd < 0) {
1505 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1506 return -1;
1507 }
1508 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1509 syslog(LOG_ERR, "Can't push IP module");
1510 return -1;
1511 }
1512
1513 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1514 syslog(LOG_ERR, "Can't get flags\n");
1515
1516 snprintf (actual_name, 32, "tap%d", ppa);
1517 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1518
1519 ifr.lifr_ppa = ppa;
1520 /* Assign ppa according to the unit number returned by tun device */
1521
1522 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1523 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1524 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1525 syslog (LOG_ERR, "Can't get flags\n");
1526 /* Push arp module to if_fd */
1527 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1528 syslog (LOG_ERR, "Can't push ARP module (2)");
1529
1530 /* Push arp module to ip_fd */
1531 if (ioctl (ip_fd, I_POP, NULL) < 0)
1532 syslog (LOG_ERR, "I_POP failed\n");
1533 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1534 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1535 /* Open arp_fd */
1536 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1537 if (arp_fd < 0)
1538 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1539
1540 /* Set ifname to arp */
1541 strioc_if.ic_cmd = SIOCSLIFNAME;
1542 strioc_if.ic_timout = 0;
1543 strioc_if.ic_len = sizeof(ifr);
1544 strioc_if.ic_dp = (char *)&ifr;
1545 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1546 syslog (LOG_ERR, "Can't set ifname to arp\n");
1547 }
1548
1549 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1550 syslog(LOG_ERR, "Can't link TAP device to IP");
1551 return -1;
1552 }
1553
1554 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1555 syslog (LOG_ERR, "Can't link TAP device to ARP");
1556
1557 close (if_fd);
1558
1559 memset(&ifr, 0x0, sizeof(ifr));
1560 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1561 ifr.lifr_ip_muxid = ip_muxid;
1562 ifr.lifr_arp_muxid = arp_muxid;
1563
1564 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1565 {
1566 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1567 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1568 syslog (LOG_ERR, "Can't set multiplexor id");
1569 }
1570
1571 snprintf(dev, dev_size, "tap%d", ppa);
1572 return tap_fd;
1573}
1574
1575static int tap_open(char *ifname, int ifname_size)
1576{
1577 char dev[10]="";
1578 int fd;
1579 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1580 fprintf(stderr, "Cannot allocate TAP device\n");
1581 return -1;
1582 }
1583 pstrcpy(ifname, ifname_size, dev);
1584 fcntl(fd, F_SETFL, O_NONBLOCK);
1585 return fd;
1586}
b29fe3ed 1587#elif defined (_AIX)
1588static int tap_open(char *ifname, int ifname_size)
1589{
1590 fprintf (stderr, "no tap on AIX\n");
1591 return -1;
1592}
63a01ef8
AL		 1593#else
1594static int tap_open(char *ifname, int ifname_size)
1595{
1596 struct ifreq ifr;
1597 int fd, ret;
1598
1599 TFR(fd = open("/dev/net/tun", O_RDWR));
1600 if (fd < 0) {
1601 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1602 return -1;
1603 }
1604 memset(&ifr, 0, sizeof(ifr));
1605 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1606 if (ifname[0] != '\0')
1607 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1608 else
1609 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1610 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1611 if (ret != 0) {
1612 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1613 close(fd);
1614 return -1;
1615 }
1616 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1617 fcntl(fd, F_SETFL, O_NONBLOCK);
1618 return fd;
1619}
1620#endif
1621
1622static int launch_script(const char *setup_script, const char *ifname, int fd)
1623{
7c3370d4 1624 sigset_t oldmask, mask;
63a01ef8
AL		 1625 int pid, status;
1626 char *args[3];
1627 char **parg;
1628
7c3370d4
JK		 1629 sigemptyset(&mask);
1630 sigaddset(&mask, SIGCHLD);
1631 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1632
1633 /* try to launch network script */
1634 pid = fork();
1635 if (pid == 0) {
1636 int open_max = sysconf(_SC_OPEN_MAX), i;
1637
1638 for (i = 0; i < open_max; i++) {
1639 if (i != STDIN_FILENO &&
1640 i != STDOUT_FILENO &&
1641 i != STDERR_FILENO &&
1642 i != fd) {
1643 close(i);
63a01ef8
AL		 1644 }
1645 }
7c3370d4
JK		 1646 parg = args;
1647 *parg++ = (char *)setup_script;
1648 *parg++ = (char *)ifname;
1649 *parg++ = NULL;
1650 execv(setup_script, args);
1651 _exit(1);
1652 } else if (pid > 0) {
1653 while (waitpid(pid, &status, 0) != pid) {
1654 /* loop */
1655 }
1656 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1657
1658 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1659 return 0;
1660 }
1661 }
1662 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1663 return -1;
63a01ef8
AL		 1664}
1665
4a77b25e
MM		 1666static TAPState *net_tap_init(VLANState *vlan, const char *model,
1667 const char *name, const char *ifname1,
1668 const char *setup_script, const char *down_script)
63a01ef8
AL		 1669{
1670 TAPState *s;
1671 int fd;
1672 char ifname[128];
1673
1674 if (ifname1 != NULL)
1675 pstrcpy(ifname, sizeof(ifname), ifname1);
1676 else
1677 ifname[0] = '\0';
1678 TFR(fd = tap_open(ifname, sizeof(ifname)));
1679 if (fd < 0)
4a77b25e 1680 return NULL;
63a01ef8
AL		 1681
1682 if (!setup_script || !strcmp(setup_script, "no"))
1683 setup_script = "";
4a77b25e
MM		 1684 if (setup_script[0] != '\0' &&
1685 launch_script(setup_script, ifname, fd)) {
1686 return NULL;
63a01ef8 1687 }
7a9f6e4a 1688 s = net_tap_fd_init(vlan, model, name, fd);
63a01ef8 1689 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
7cb7434b
AL		 1690 "ifname=%s,script=%s,downscript=%s",
1691 ifname, setup_script, down_script);
973cbd37 1692 if (down_script && strcmp(down_script, "no")) {
63a01ef8 1693 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
973cbd37
AL		 1694 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1695 }
4a77b25e 1696 return s;
63a01ef8
AL		 1697}
1698
1699#endif /* !_WIN32 */
1700
1701#if defined(CONFIG_VDE)
1702typedef struct VDEState {
1703 VLANClientState *vc;
1704 VDECONN *vde;
1705} VDEState;
1706
1707static void vde_to_qemu(void *opaque)
1708{
1709 VDEState *s = opaque;
1710 uint8_t buf[4096];
1711 int size;
1712
cc63bb0f 1713 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
63a01ef8
AL		 1714 if (size > 0) {
1715 qemu_send_packet(s->vc, buf, size);
1716 }
1717}
1718
4f1c942b 1719static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 1720{
e3f5ec2b 1721 VDEState *s = vc->opaque;
068daedd 1722 ssize_t ret;
4f1c942b
MM		 1723
1724 do {
1725 ret = vde_send(s->vde, (const char *)buf, size, 0);
1726 } while (ret < 0 && errno == EINTR);
1727
1728 return ret;
63a01ef8
AL		 1729}
1730
b946a153
AL		 1731static void vde_cleanup(VLANClientState *vc)
1732{
1733 VDEState *s = vc->opaque;
1734 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1735 vde_close(s->vde);
1736 qemu_free(s);
1737}
1738
7a9f6e4a
AL		 1739static int net_vde_init(VLANState *vlan, const char *model,
1740 const char *name, const char *sock,
bf38c1a0 1741 int port, const char *group, int mode)
63a01ef8
AL		 1742{
1743 VDEState *s;
1744 char *init_group = strlen(group) ? (char *)group : NULL;
1745 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1746
1747 struct vde_open_args args = {
1748 .port = port,
1749 .group = init_group,
1750 .mode = mode,
1751 };
1752
1753 s = qemu_mallocz(sizeof(VDEState));
cc63bb0f 1754 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
63a01ef8
AL		 1755 if (!s->vde){
1756 free(s);
1757 return -1;
1758 }
e3f5ec2b 1759 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
b946a153 1760 NULL, vde_cleanup, s);
63a01ef8 1761 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
7cb7434b 1762 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
63a01ef8
AL		 1763 sock, vde_datafd(s->vde));
1764 return 0;
1765}
1766#endif
1767
1768/* network connection */
1769typedef struct NetSocketState {
1770 VLANClientState *vc;
1771 int fd;
1772 int state; /* 0 = getting length, 1 = getting data */
abcd2baa
AL		 1773 unsigned int index;
1774 unsigned int packet_len;
63a01ef8
AL		 1775 uint8_t buf[4096];
1776 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1777} NetSocketState;
1778
1779typedef struct NetSocketListenState {
1780 VLANState *vlan;
bf38c1a0 1781 char *model;
7a9f6e4a 1782 char *name;
63a01ef8
AL		 1783 int fd;
1784} NetSocketListenState;
1785
1786/* XXX: we consider we can send the whole packet without blocking */
4f1c942b 1787static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 1788{
e3f5ec2b 1789 NetSocketState *s = vc->opaque;
63a01ef8
AL		 1790 uint32_t len;
1791 len = htonl(size);
1792
1793 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
4f1c942b 1794 return send_all(s->fd, buf, size);
63a01ef8
AL		 1795}
1796
4f1c942b 1797static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
63a01ef8 1798{
e3f5ec2b 1799 NetSocketState *s = vc->opaque;
4f1c942b 1800
70503264 1801 return sendto(s->fd, (const void *)buf, size, 0,
4f1c942b 1802 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
63a01ef8
AL		 1803}
1804
1805static void net_socket_send(void *opaque)
1806{
1807 NetSocketState *s = opaque;
abcd2baa
AL		 1808 int size, err;
1809 unsigned l;
63a01ef8
AL		 1810 uint8_t buf1[4096];
1811 const uint8_t *buf;
1812
c5b76b38 1813 size = recv(s->fd, (void *)buf1, sizeof(buf1), 0);
63a01ef8
AL		 1814 if (size < 0) {
1815 err = socket_error();
1816 if (err != EWOULDBLOCK)
1817 goto eoc;
1818 } else if (size == 0) {
1819 /* end of connection */
1820 eoc:
1821 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1822 closesocket(s->fd);
1823 return;
1824 }
1825 buf = buf1;
1826 while (size > 0) {
1827 /* reassemble a packet from the network */
1828 switch(s->state) {
1829 case 0:
1830 l = 4 - s->index;
1831 if (l > size)
1832 l = size;
1833 memcpy(s->buf + s->index, buf, l);
1834 buf += l;
1835 size -= l;
1836 s->index += l;
1837 if (s->index == 4) {
1838 /* got length */
1839 s->packet_len = ntohl(*(uint32_t *)s->buf);
1840 s->index = 0;
1841 s->state = 1;
1842 }
1843 break;
1844 case 1:
1845 l = s->packet_len - s->index;
1846 if (l > size)
1847 l = size;
abcd2baa
AL		 1848 if (s->index + l <= sizeof(s->buf)) {
1849 memcpy(s->buf + s->index, buf, l);
1850 } else {
1851 fprintf(stderr, "serious error: oversized packet received,"
1852 "connection terminated.\n");
1853 s->state = 0;
1854 goto eoc;
1855 }
1856
63a01ef8
AL		 1857 s->index += l;
1858 buf += l;
1859 size -= l;
1860 if (s->index >= s->packet_len) {
1861 qemu_send_packet(s->vc, s->buf, s->packet_len);
1862 s->index = 0;
1863 s->state = 0;
1864 }
1865 break;
1866 }
1867 }
1868}
1869
1870static void net_socket_send_dgram(void *opaque)
1871{
1872 NetSocketState *s = opaque;
1873 int size;
1874
c5b76b38 1875 size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
63a01ef8
AL		 1876 if (size < 0)
1877 return;
1878 if (size == 0) {
1879 /* end of connection */
1880 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1881 return;
1882 }
1883 qemu_send_packet(s->vc, s->buf, size);
1884}
1885
1886static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1887{
1888 struct ip_mreq imr;
1889 int fd;
1890 int val, ret;
1891 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1892 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1893 inet_ntoa(mcastaddr->sin_addr),
1894 (int)ntohl(mcastaddr->sin_addr.s_addr));
1895 return -1;
1896
1897 }
1898 fd = socket(PF_INET, SOCK_DGRAM, 0);
1899 if (fd < 0) {
1900 perror("socket(PF_INET, SOCK_DGRAM)");
1901 return -1;
1902 }
1903
1904 val = 1;
1905 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1906 (const char *)&val, sizeof(val));
1907 if (ret < 0) {
1908 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1909 goto fail;
1910 }
1911
1912 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1913 if (ret < 0) {
1914 perror("bind");
1915 goto fail;
1916 }
1917
1918 /* Add host to multicast group */
1919 imr.imr_multiaddr = mcastaddr->sin_addr;
1920 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1921
1922 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1923 (const char *)&imr, sizeof(struct ip_mreq));
1924 if (ret < 0) {
1925 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1926 goto fail;
1927 }
1928
1929 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1930 val = 1;
1931 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1932 (const char *)&val, sizeof(val));
1933 if (ret < 0) {
1934 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1935 goto fail;
1936 }
1937
1938 socket_set_nonblock(fd);
1939 return fd;
1940fail:
1941 if (fd >= 0)
1942 closesocket(fd);
1943 return -1;
1944}
1945
b946a153
AL		 1946static void net_socket_cleanup(VLANClientState *vc)
1947{
1948 NetSocketState *s = vc->opaque;
1949 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1950 close(s->fd);
1951 qemu_free(s);
1952}
1953
7a9f6e4a
AL		 1954static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1955 const char *model,
1956 const char *name,
bf38c1a0 1957 int fd, int is_connected)
63a01ef8
AL		 1958{
1959 struct sockaddr_in saddr;
1960 int newfd;
1961 socklen_t saddr_len;
1962 NetSocketState *s;
1963
1964 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1965 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1966 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1967 */
1968
1969 if (is_connected) {
1970 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1971 /* must be bound */
1972 if (saddr.sin_addr.s_addr==0) {
1973 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1974 fd);
1975 return NULL;
1976 }
1977 /* clone dgram socket */
1978 newfd = net_socket_mcast_create(&saddr);
1979 if (newfd < 0) {
1980 /* error already reported by net_socket_mcast_create() */
1981 close(fd);
1982 return NULL;
1983 }
1984 /* clone newfd to fd, close newfd */
1985 dup2(newfd, fd);
1986 close(newfd);
1987
1988 } else {
1989 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1990 fd, strerror(errno));
1991 return NULL;
1992 }
1993 }
1994
1995 s = qemu_mallocz(sizeof(NetSocketState));
63a01ef8
AL		 1996 s->fd = fd;
1997
463af534 1998 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
b946a153 1999 NULL, net_socket_cleanup, s);
63a01ef8
AL		 2000 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
2001
2002 /* mcast: save bound address as dst */
2003 if (is_connected) s->dgram_dst=saddr;
2004
2005 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2006 "socket: fd=%d (%s mcast=%s:%d)",
2007 fd, is_connected? "cloned" : "",
2008 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2009 return s;
2010}
2011
2012static void net_socket_connect(void *opaque)
2013{
2014 NetSocketState *s = opaque;
2015 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
2016}
2017
7a9f6e4a
AL		 2018static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
2019 const char *model,
2020 const char *name,
bf38c1a0 2021 int fd, int is_connected)
63a01ef8
AL		 2022{
2023 NetSocketState *s;
2024 s = qemu_mallocz(sizeof(NetSocketState));
63a01ef8 2025 s->fd = fd;
463af534 2026 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
b946a153 2027 NULL, net_socket_cleanup, s);
63a01ef8
AL		 2028 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2029 "socket: fd=%d", fd);
2030 if (is_connected) {
2031 net_socket_connect(s);
2032 } else {
2033 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
2034 }
2035 return s;
2036}
2037
7a9f6e4a
AL		 2038static NetSocketState *net_socket_fd_init(VLANState *vlan,
2039 const char *model, const char *name,
bf38c1a0 2040 int fd, int is_connected)
63a01ef8
AL		 2041{
2042 int so_type=-1, optlen=sizeof(so_type);
2043
2044 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
2045 (socklen_t *)&optlen)< 0) {
2046 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
2047 return NULL;
2048 }
2049 switch(so_type) {
2050 case SOCK_DGRAM:
7a9f6e4a 2051 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
63a01ef8 2052 case SOCK_STREAM:
7a9f6e4a 2053 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
63a01ef8
AL		 2054 default:
2055 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
2056 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
7a9f6e4a 2057 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
63a01ef8
AL		 2058 }
2059 return NULL;
2060}
2061
2062static void net_socket_accept(void *opaque)
2063{
2064 NetSocketListenState *s = opaque;
2065 NetSocketState *s1;
2066 struct sockaddr_in saddr;
2067 socklen_t len;
2068 int fd;
2069
2070 for(;;) {
2071 len = sizeof(saddr);
2072 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
2073 if (fd < 0 && errno != EINTR) {
2074 return;
2075 } else if (fd >= 0) {
2076 break;
2077 }
2078 }
7a9f6e4a 2079 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
63a01ef8
AL		 2080 if (!s1) {
2081 closesocket(fd);
2082 } else {
2083 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
2084 "socket: connection from %s:%d",
2085 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2086 }
2087}
2088
7a9f6e4a
AL		 2089static int net_socket_listen_init(VLANState *vlan,
2090 const char *model,
2091 const char *name,
bf38c1a0 2092 const char *host_str)
63a01ef8
AL		 2093{
2094 NetSocketListenState *s;
2095 int fd, val, ret;
2096 struct sockaddr_in saddr;
2097
2098 if (parse_host_port(&saddr, host_str) < 0)
2099 return -1;
2100
2101 s = qemu_mallocz(sizeof(NetSocketListenState));
63a01ef8
AL		 2102
2103 fd = socket(PF_INET, SOCK_STREAM, 0);
2104 if (fd < 0) {
2105 perror("socket");
2106 return -1;
2107 }
2108 socket_set_nonblock(fd);
2109
2110 /* allow fast reuse */
2111 val = 1;
2112 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
2113
2114 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
2115 if (ret < 0) {
2116 perror("bind");
2117 return -1;
2118 }
2119 ret = listen(fd, 0);
2120 if (ret < 0) {
2121 perror("listen");
2122 return -1;
2123 }
2124 s->vlan = vlan;
bf38c1a0 2125 s->model = strdup(model);
ea053add 2126 s->name = name ? strdup(name) : NULL;
63a01ef8
AL		 2127 s->fd = fd;
2128 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
2129 return 0;
2130}
2131
7a9f6e4a
AL		 2132static int net_socket_connect_init(VLANState *vlan,
2133 const char *model,
2134 const char *name,
bf38c1a0 2135 const char *host_str)
63a01ef8
AL		 2136{
2137 NetSocketState *s;
2138 int fd, connected, ret, err;
2139 struct sockaddr_in saddr;
2140
2141 if (parse_host_port(&saddr, host_str) < 0)
2142 return -1;
2143
2144 fd = socket(PF_INET, SOCK_STREAM, 0);
2145 if (fd < 0) {
2146 perror("socket");
2147 return -1;
2148 }
2149 socket_set_nonblock(fd);
2150
2151 connected = 0;
2152 for(;;) {
2153 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
2154 if (ret < 0) {
2155 err = socket_error();
2156 if (err == EINTR || err == EWOULDBLOCK) {
2157 } else if (err == EINPROGRESS) {
2158 break;
2159#ifdef _WIN32
2160 } else if (err == WSAEALREADY) {
2161 break;
2162#endif
2163 } else {
2164 perror("connect");
2165 closesocket(fd);
2166 return -1;
2167 }
2168 } else {
2169 connected = 1;
2170 break;
2171 }
2172 }
7a9f6e4a 2173 s = net_socket_fd_init(vlan, model, name, fd, connected);
63a01ef8
AL		 2174 if (!s)
2175 return -1;
2176 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2177 "socket: connect to %s:%d",
2178 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2179 return 0;
2180}
2181
7a9f6e4a
AL		 2182static int net_socket_mcast_init(VLANState *vlan,
2183 const char *model,
2184 const char *name,
bf38c1a0 2185 const char *host_str)
63a01ef8
AL		 2186{
2187 NetSocketState *s;
2188 int fd;
2189 struct sockaddr_in saddr;
2190
2191 if (parse_host_port(&saddr, host_str) < 0)
2192 return -1;
2193
2194
2195 fd = net_socket_mcast_create(&saddr);
2196 if (fd < 0)
2197 return -1;
2198
7a9f6e4a 2199 s = net_socket_fd_init(vlan, model, name, fd, 0);
63a01ef8
AL		 2200 if (!s)
2201 return -1;
2202
2203 s->dgram_dst = saddr;
2204
2205 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2206 "socket: mcast=%s:%d",
2207 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2208 return 0;
2209
2210}
2211
bb9ea79e
AL		 2212typedef struct DumpState {
2213 VLANClientState *pcap_vc;
2214 int fd;
2215 int pcap_caplen;
2216} DumpState;
2217
2218#define PCAP_MAGIC 0xa1b2c3d4
2219
2220struct pcap_file_hdr {
2221 uint32_t magic;
2222 uint16_t version_major;
2223 uint16_t version_minor;
2224 int32_t thiszone;
2225 uint32_t sigfigs;
2226 uint32_t snaplen;
2227 uint32_t linktype;
2228};
2229
2230struct pcap_sf_pkthdr {
2231 struct {
2232 int32_t tv_sec;
2233 int32_t tv_usec;
2234 } ts;
2235 uint32_t caplen;
2236 uint32_t len;
2237};
2238
4f1c942b 2239static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
bb9ea79e 2240{
e3f5ec2b 2241 DumpState *s = vc->opaque;
bb9ea79e
AL		 2242 struct pcap_sf_pkthdr hdr;
2243 int64_t ts;
2244 int caplen;
2245
2246 /* Early return in case of previous error. */
2247 if (s->fd < 0) {
4f1c942b 2248 return size;
bb9ea79e
AL		 2249 }
2250
37cb6fc3 2251 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
bb9ea79e
AL		 2252 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
2253
37cb6fc3 2254 hdr.ts.tv_sec = ts / 1000000;
bb9ea79e
AL		 2255 hdr.ts.tv_usec = ts % 1000000;
2256 hdr.caplen = caplen;
2257 hdr.len = size;
2258 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
2259 write(s->fd, buf, caplen) != caplen) {
2260 qemu_log("-net dump write error - stop dump\n");
2261 close(s->fd);
2262 s->fd = -1;
2263 }
4f1c942b
MM		 2264
2265 return size;
bb9ea79e
AL		 2266}
2267
2268static void net_dump_cleanup(VLANClientState *vc)
2269{
2270 DumpState *s = vc->opaque;
2271
2272 close(s->fd);
2273 qemu_free(s);
2274}
2275
10ae5a7a 2276static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
bb9ea79e
AL		 2277 const char *name, const char *filename, int len)
2278{
2279 struct pcap_file_hdr hdr;
2280 DumpState *s;
2281
2282 s = qemu_malloc(sizeof(DumpState));
2283
024431b3 2284 s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
bb9ea79e 2285 if (s->fd < 0) {
10ae5a7a 2286 config_error(mon, "-net dump: can't open %s\n", filename);
bb9ea79e
AL		 2287 return -1;
2288 }
2289
2290 s->pcap_caplen = len;
2291
2292 hdr.magic = PCAP_MAGIC;
2293 hdr.version_major = 2;
2294 hdr.version_minor = 4;
2295 hdr.thiszone = 0;
2296 hdr.sigfigs = 0;
2297 hdr.snaplen = s->pcap_caplen;
2298 hdr.linktype = 1;
2299
2300 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
10ae5a7a 2301 config_error(mon, "-net dump write error: %s\n", strerror(errno));
bb9ea79e
AL		 2302 close(s->fd);
2303 qemu_free(s);
2304 return -1;
2305 }
2306
463af534 2307 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL,
bb9ea79e
AL		 2308 net_dump_cleanup, s);
2309 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
2310 "dump to %s (len=%d)", filename, len);
2311 return 0;
2312}
2313
63a01ef8 2314/* find or alloc a new VLAN */
1a609520 2315VLANState *qemu_find_vlan(int id, int allocate)
63a01ef8
AL		 2316{
2317 VLANState **pvlan, *vlan;
2318 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2319 if (vlan->id == id)
2320 return vlan;
2321 }
1a609520
JK		 2322 if (!allocate) {
2323 return NULL;
2324 }
63a01ef8 2325 vlan = qemu_mallocz(sizeof(VLANState));
63a01ef8 2326 vlan->id = id;
9da43187 2327 TAILQ_INIT(&vlan->send_queue);
63a01ef8
AL		 2328 vlan->next = NULL;
2329 pvlan = &first_vlan;
2330 while (*pvlan != NULL)
2331 pvlan = &(*pvlan)->next;
2332 *pvlan = vlan;
2333 return vlan;
2334}
2335
7697079b
AL		 2336static int nic_get_free_idx(void)
2337{
2338 int index;
2339
2340 for (index = 0; index < MAX_NICS; index++)
2341 if (!nd_table[index].used)
2342 return index;
2343 return -1;
2344}
2345
d07f22c5
AL		 2346void qemu_check_nic_model(NICInfo *nd, const char *model)
2347{
2348 const char *models[2];
2349
2350 models[0] = model;
2351 models[1] = NULL;
2352
2353 qemu_check_nic_model_list(nd, models, model);
2354}
2355
2356void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
2357 const char *default_model)
2358{
2359 int i, exit_status = 0;
2360
2361 if (!nd->model)
2362 nd->model = strdup(default_model);
2363
2364 if (strcmp(nd->model, "?") != 0) {
2365 for (i = 0 ; models[i]; i++)
2366 if (strcmp(nd->model, models[i]) == 0)
2367 return;
2368
2369 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
2370 exit_status = 1;
2371 }
2372
2373 fprintf(stderr, "qemu: Supported NIC models: ");
2374 for (i = 0 ; models[i]; i++)
2375 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
2376
2377 exit(exit_status);
2378}
2379
c1d6eed7
MM		 2380static int net_handle_fd_param(Monitor *mon, const char *param)
2381{
2382 if (!qemu_isdigit(param[0])) {
2383 int fd;
2384
2385 fd = monitor_get_fd(mon, param);
2386 if (fd == -1) {
2387 config_error(mon, "No file descriptor named %s found", param);
2388 return -1;
2389 }
2390
2391 return fd;
2392 } else {
2393 return strtol(param, NULL, 0);
2394 }
2395}
2396
10ae5a7a 2397int net_client_init(Monitor *mon, const char *device, const char *p)
63a01ef8
AL		 2398{
2399 char buf[1024];
2400 int vlan_id, ret;
2401 VLANState *vlan;
7a9f6e4a 2402 char *name = NULL;
63a01ef8
AL		 2403
2404 vlan_id = 0;
2405 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
2406 vlan_id = strtol(buf, NULL, 0);
2407 }
1a609520 2408 vlan = qemu_find_vlan(vlan_id, 1);
9036de1a 2409
7a9f6e4a 2410 if (get_param_value(buf, sizeof(buf), "name", p)) {
10ae5a7a 2411 name = qemu_strdup(buf);
7a9f6e4a 2412 }
63a01ef8 2413 if (!strcmp(device, "nic")) {
8e4416af 2414 static const char * const nic_params[] = {
eb54b6dc 2415 "vlan", "name", "macaddr", "model", "addr", "id", "vectors", NULL
8e4416af 2416 };
63a01ef8
AL		 2417 NICInfo *nd;
2418 uint8_t *macaddr;
7697079b 2419 int idx = nic_get_free_idx();
63a01ef8 2420
0aa7a205 2421 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
10ae5a7a
JK		 2422 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2423 ret = -1;
2424 goto out;
8e4416af 2425 }
7697079b 2426 if (idx == -1 || nb_nics >= MAX_NICS) {
10ae5a7a 2427 config_error(mon, "Too Many NICs\n");
771f1339
AL		 2428 ret = -1;
2429 goto out;
63a01ef8 2430 }
7697079b 2431 nd = &nd_table[idx];
63a01ef8
AL		 2432 macaddr = nd->macaddr;
2433 macaddr[0] = 0x52;
2434 macaddr[1] = 0x54;
2435 macaddr[2] = 0x00;
2436 macaddr[3] = 0x12;
2437 macaddr[4] = 0x34;
7697079b 2438 macaddr[5] = 0x56 + idx;
63a01ef8
AL		 2439
2440 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
2441 if (parse_macaddr(macaddr, buf) < 0) {
10ae5a7a 2442 config_error(mon, "invalid syntax for ethernet address\n");
771f1339
AL		 2443 ret = -1;
2444 goto out;
63a01ef8
AL		 2445 }
2446 }
2447 if (get_param_value(buf, sizeof(buf), "model", p)) {
2448 nd->model = strdup(buf);
2449 }
5607c388
MA		 2450 if (get_param_value(buf, sizeof(buf), "addr", p)) {
2451 nd->devaddr = strdup(buf);
2452 }
eb54b6dc
GH		 2453 if (get_param_value(buf, sizeof(buf), "id", p)) {
2454 nd->id = strdup(buf);
2455 }
ffe6370c
MT		 2456 nd->nvectors = NIC_NVECTORS_UNSPECIFIED;
2457 if (get_param_value(buf, sizeof(buf), "vectors", p)) {
2458 char *endptr;
2459 long vectors = strtol(buf, &endptr, 0);
2460 if (*endptr) {
2461 config_error(mon, "invalid syntax for # of vectors\n");
2462 ret = -1;
2463 goto out;
2464 }
2465 if (vectors < 0 || vectors > 0x7ffffff) {
2466 config_error(mon, "invalid # of vectors\n");
2467 ret = -1;
2468 goto out;
2469 }
2470 nd->nvectors = vectors;
2471 }
63a01ef8 2472 nd->vlan = vlan;
7a9f6e4a 2473 nd->name = name;
7697079b 2474 nd->used = 1;
7a9f6e4a 2475 name = NULL;
63a01ef8
AL		 2476 nb_nics++;
2477 vlan->nb_guest_devs++;
4d73cd3b 2478 ret = idx;
63a01ef8
AL		 2479 } else
2480 if (!strcmp(device, "none")) {
8e4416af 2481 if (*p != '\0') {
10ae5a7a
JK		 2482 config_error(mon, "'none' takes no parameters\n");
2483 ret = -1;
2484 goto out;
8e4416af 2485 }
63a01ef8
AL		 2486 /* does nothing. It is needed to signal that no network cards
2487 are wanted */
2488 ret = 0;
2489 } else
2490#ifdef CONFIG_SLIRP
2491 if (!strcmp(device, "user")) {
8e4416af 2492 static const char * const slirp_params[] = {
c92ef6a2
JK		 2493 "vlan", "name", "hostname", "restrict", "ip", "net", "host",
2494 "tftp", "bootfile", "dhcpstart", "dns", "smb", "smbserver",
2495 "hostfwd", "guestfwd", NULL
8e4416af 2496 };
ad196a9d 2497 struct slirp_config_str *config;
c92ef6a2
JK		 2498 int restricted = 0;
2499 char *vnet = NULL;
2500 char *vhost = NULL;
2501 char *vhostname = NULL;
ad196a9d
JK		 2502 char *tftp_export = NULL;
2503 char *bootfile = NULL;
c92ef6a2
JK		 2504 char *vdhcp_start = NULL;
2505 char *vnamesrv = NULL;
ad196a9d 2506 char *smb_export = NULL;
c92ef6a2 2507 char *vsmbsrv = NULL;
ad196a9d 2508 const char *q;
b8e8af38 2509
0aa7a205 2510 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
10ae5a7a
JK		 2511 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2512 ret = -1;
2513 goto out;
8e4416af 2514 }
c92ef6a2 2515 if (get_param_value(buf, sizeof(buf), "ip", p)) {
3da6abd4 2516 int vnet_buflen = strlen(buf) + strlen("/24") + 1;
c92ef6a2 2517 /* emulate legacy parameter */
3da6abd4
BS		 2518 vnet = qemu_malloc(vnet_buflen);
2519 pstrcpy(vnet, vnet_buflen, buf);
2520 pstrcat(vnet, vnet_buflen, "/24");
c92ef6a2
JK		 2521 }
2522 if (get_param_value(buf, sizeof(buf), "net", p)) {
2523 vnet = qemu_strdup(buf);
2524 }
2525 if (get_param_value(buf, sizeof(buf), "host", p)) {
2526 vhost = qemu_strdup(buf);
2527 }
63a01ef8 2528 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
c92ef6a2 2529 vhostname = qemu_strdup(buf);
63a01ef8 2530 }
49ec9b40 2531 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
b8e8af38 2532 restricted = (buf[0] == 'y') ? 1 : 0;
49ec9b40 2533 }
c92ef6a2
JK		 2534 if (get_param_value(buf, sizeof(buf), "dhcpstart", p)) {
2535 vdhcp_start = qemu_strdup(buf);
2536 }
2537 if (get_param_value(buf, sizeof(buf), "dns", p)) {
2538 vnamesrv = qemu_strdup(buf);
49ec9b40 2539 }
ad196a9d
JK		 2540 if (get_param_value(buf, sizeof(buf), "tftp", p)) {
2541 tftp_export = qemu_strdup(buf);
2542 }
2543 if (get_param_value(buf, sizeof(buf), "bootfile", p)) {
2544 bootfile = qemu_strdup(buf);
2545 }
2546 if (get_param_value(buf, sizeof(buf), "smb", p)) {
2547 smb_export = qemu_strdup(buf);
c92ef6a2
JK		 2548 if (get_param_value(buf, sizeof(buf), "smbserver", p)) {
2549 vsmbsrv = qemu_strdup(buf);
2550 }
ad196a9d
JK		 2551 }
2552 q = p;
2553 while (1) {
2554 config = qemu_malloc(sizeof(*config));
2555 if (!get_next_param_value(config->str, sizeof(config->str),
c92ef6a2 2556 "hostfwd", &q)) {
ad196a9d
JK		 2557 break;
2558 }
c92ef6a2 2559 config->flags = SLIRP_CFG_HOSTFWD;
ad196a9d
JK		 2560 config->next = slirp_configs;
2561 slirp_configs = config;
2562 config = NULL;
2563 }
2564 q = p;
2565 while (1) {
2566 config = qemu_malloc(sizeof(*config));
2567 if (!get_next_param_value(config->str, sizeof(config->str),
c92ef6a2 2568 "guestfwd", &q)) {
ad196a9d
JK		 2569 break;
2570 }
2571 config->flags = 0;
2572 config->next = slirp_configs;
2573 slirp_configs = config;
2574 config = NULL;
2575 }
2576 qemu_free(config);
63a01ef8 2577 vlan->nb_host_devs++;
c92ef6a2
JK		 2578 ret = net_slirp_init(mon, vlan, device, name, restricted, vnet, vhost,
2579 vhostname, tftp_export, bootfile, vdhcp_start,
2580 vnamesrv, smb_export, vsmbsrv);
2581 qemu_free(vnet);
2582 qemu_free(vhost);
2583 qemu_free(vhostname);
ad196a9d
JK		 2584 qemu_free(tftp_export);
2585 qemu_free(bootfile);
c92ef6a2
JK		 2586 qemu_free(vdhcp_start);
2587 qemu_free(vnamesrv);
ad196a9d 2588 qemu_free(smb_export);
c92ef6a2 2589 qemu_free(vsmbsrv);
8ca9217d 2590 } else if (!strcmp(device, "channel")) {
b1c99fcd 2591 if (TAILQ_EMPTY(&slirp_stacks)) {
ad196a9d
JK		 2592 struct slirp_config_str *config;
2593
2594 config = qemu_malloc(sizeof(*config));
2595 pstrcpy(config->str, sizeof(config->str), p);
c92ef6a2 2596 config->flags = SLIRP_CFG_LEGACY;
ad196a9d
JK		 2597 config->next = slirp_configs;
2598 slirp_configs = config;
2599 } else {
b1c99fcd 2600 slirp_guestfwd(TAILQ_FIRST(&slirp_stacks), mon, p, 1);
8ca9217d 2601 }
8ca9217d 2602 ret = 0;
63a01ef8
AL		 2603 } else
2604#endif
2605#ifdef _WIN32
2606 if (!strcmp(device, "tap")) {
8e4416af
AL		 2607 static const char * const tap_params[] = {
2608 "vlan", "name", "ifname", NULL
2609 };
63a01ef8 2610 char ifname[64];
8e4416af 2611
0aa7a205 2612 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
10ae5a7a
JK		 2613 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2614 ret = -1;
2615 goto out;
8e4416af 2616 }
63a01ef8 2617 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
10ae5a7a 2618 config_error(mon, "tap: no interface name\n");
771f1339
AL		 2619 ret = -1;
2620 goto out;
63a01ef8
AL		 2621 }
2622 vlan->nb_host_devs++;
7a9f6e4a 2623 ret = tap_win32_init(vlan, device, name, ifname);
63a01ef8 2624 } else
b29fe3ed 2625#elif defined (_AIX)
63a01ef8
AL		 2626#else
2627 if (!strcmp(device, "tap")) {
0aa7a205 2628 char ifname[64], chkbuf[64];
63a01ef8 2629 char setup_script[1024], down_script[1024];
4a77b25e 2630 TAPState *s;
63a01ef8
AL		 2631 int fd;
2632 vlan->nb_host_devs++;
2633 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
0df0ff6d
MM		 2634 static const char * const fd_params[] = {
2635 "vlan", "name", "fd", "sndbuf", NULL
2636 };
c1d6eed7 2637 ret = -1;
0aa7a205 2638 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
10ae5a7a 2639 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
10ae5a7a 2640 goto out;
8e4416af 2641 }
c1d6eed7
MM		 2642 fd = net_handle_fd_param(mon, buf);
2643 if (fd == -1) {
2644 goto out;
2645 }
63a01ef8 2646 fcntl(fd, F_SETFL, O_NONBLOCK);
4a77b25e 2647 s = net_tap_fd_init(vlan, device, name, fd);
c1d6eed7
MM		 2648 if (!s) {
2649 close(fd);
2650 }
63a01ef8 2651 } else {
8e4416af 2652 static const char * const tap_params[] = {
0df0ff6d 2653 "vlan", "name", "ifname", "script", "downscript", "sndbuf", NULL
8e4416af 2654 };
0aa7a205 2655 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
10ae5a7a
JK		 2656 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2657 ret = -1;
2658 goto out;
8e4416af 2659 }
63a01ef8
AL		 2660 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2661 ifname[0] = '\0';
2662 }
2663 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2664 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2665 }
2666 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2667 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2668 }
4a77b25e
MM		 2669 s = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2670 }
2671 if (s != NULL) {
fc5b81d1 2672 const char *sndbuf_str = NULL;
0df0ff6d 2673 if (get_param_value(buf, sizeof(buf), "sndbuf", p)) {
fc5b81d1 2674 sndbuf_str = buf;
0df0ff6d 2675 }
fc5b81d1 2676 tap_set_sndbuf(s, sndbuf_str, mon);
4a77b25e
MM		 2677 ret = 0;
2678 } else {
2679 ret = -1;
63a01ef8
AL		 2680 }
2681 } else
2682#endif
2683 if (!strcmp(device, "socket")) {
0aa7a205 2684 char chkbuf[64];
63a01ef8 2685 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
0df0ff6d
MM		 2686 static const char * const fd_params[] = {
2687 "vlan", "name", "fd", NULL
2688 };
63a01ef8 2689 int fd;
c1d6eed7 2690 ret = -1;
0aa7a205 2691 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
10ae5a7a 2692 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
10ae5a7a 2693 goto out;
8e4416af 2694 }
c1d6eed7
MM		 2695 fd = net_handle_fd_param(mon, buf);
2696 if (fd == -1) {
2697 goto out;
2698 }
2699 if (!net_socket_fd_init(vlan, device, name, fd, 1)) {
2700 close(fd);
2701 goto out;
2702 }
2703 ret = 0;
63a01ef8 2704 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
8e4416af
AL		 2705 static const char * const listen_params[] = {
2706 "vlan", "name", "listen", NULL
2707 };
0aa7a205 2708 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
10ae5a7a
JK		 2709 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2710 ret = -1;
2711 goto out;
8e4416af 2712 }
7a9f6e4a 2713 ret = net_socket_listen_init(vlan, device, name, buf);
63a01ef8 2714 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
8e4416af
AL		 2715 static const char * const connect_params[] = {
2716 "vlan", "name", "connect", NULL
2717 };
0aa7a205 2718 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
10ae5a7a
JK		 2719 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2720 ret = -1;
2721 goto out;
8e4416af 2722 }
7a9f6e4a 2723 ret = net_socket_connect_init(vlan, device, name, buf);
63a01ef8 2724 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
8e4416af
AL		 2725 static const char * const mcast_params[] = {
2726 "vlan", "name", "mcast", NULL
2727 };
0aa7a205 2728 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
10ae5a7a
JK		 2729 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2730 ret = -1;
2731 goto out;
8e4416af 2732 }
7a9f6e4a 2733 ret = net_socket_mcast_init(vlan, device, name, buf);
63a01ef8 2734 } else {
10ae5a7a 2735 config_error(mon, "Unknown socket options: %s\n", p);
771f1339
AL		 2736 ret = -1;
2737 goto out;
63a01ef8
AL		 2738 }
2739 vlan->nb_host_devs++;
2740 } else
2741#ifdef CONFIG_VDE
2742 if (!strcmp(device, "vde")) {
8e4416af
AL		 2743 static const char * const vde_params[] = {
2744 "vlan", "name", "sock", "port", "group", "mode", NULL
2745 };
63a01ef8
AL		 2746 char vde_sock[1024], vde_group[512];
2747 int vde_port, vde_mode;
8e4416af 2748
0aa7a205 2749 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
10ae5a7a
JK		 2750 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2751 ret = -1;
2752 goto out;
8e4416af 2753 }
63a01ef8
AL		 2754 vlan->nb_host_devs++;
2755 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2756 vde_sock[0] = '\0';
2757 }
2758 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2759 vde_port = strtol(buf, NULL, 10);
2760 } else {
2761 vde_port = 0;
2762 }
2763 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2764 vde_group[0] = '\0';
2765 }
2766 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2767 vde_mode = strtol(buf, NULL, 8);
2768 } else {
2769 vde_mode = 0700;
2770 }
7a9f6e4a 2771 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
63a01ef8
AL		 2772 } else
2773#endif
bb9ea79e
AL		 2774 if (!strcmp(device, "dump")) {
2775 int len = 65536;
2776
2777 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2778 len = strtol(buf, NULL, 0);
2779 }
2780 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2781 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2782 }
10ae5a7a 2783 ret = net_dump_init(mon, vlan, device, name, buf, len);
bb9ea79e 2784 } else {
10ae5a7a 2785 config_error(mon, "Unknown network device: %s\n", device);
771f1339
AL		 2786 ret = -1;
2787 goto out;
63a01ef8
AL		 2788 }
2789 if (ret < 0) {
10ae5a7a 2790 config_error(mon, "Could not initialize device '%s'\n", device);
63a01ef8 2791 }
771f1339 2792out:
10ae5a7a 2793 qemu_free(name);
63a01ef8
AL		 2794 return ret;
2795}
2796
8b13c4a7
AL		 2797void net_client_uninit(NICInfo *nd)
2798{
2799 nd->vlan->nb_guest_devs--;
2800 nb_nics--;
2801 nd->used = 0;
2802 free((void *)nd->model);
2803}
2804
6f338c34
AL		 2805static int net_host_check_device(const char *device)
2806{
2807 int i;
bb9ea79e 2808 const char *valid_param_list[] = { "tap", "socket", "dump"
6f338c34
AL		 2809#ifdef CONFIG_SLIRP
2810 ,"user"
2811#endif
2812#ifdef CONFIG_VDE
2813 ,"vde"
2814#endif
2815 };
2816 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2817 if (!strncmp(valid_param_list[i], device,
2818 strlen(valid_param_list[i])))
2819 return 1;
2820 }
2821
2822 return 0;
2823}
2824
f18c16de 2825void net_host_device_add(Monitor *mon, const QDict *qdict)
6f338c34 2826{
f18c16de
LC		 2827 const char *device = qdict_get_str(qdict, "device");
2828 const char *opts = qdict_get_try_str(qdict, "opts");
2829
6f338c34 2830 if (!net_host_check_device(device)) {
376253ec 2831 monitor_printf(mon, "invalid host network device %s\n", device);
6f338c34
AL		 2832 return;
2833 }
10ae5a7a 2834 if (net_client_init(mon, device, opts ? opts : "") < 0) {
5c8be678
AL		 2835 monitor_printf(mon, "adding host network device %s failed\n", device);
2836 }
6f338c34
AL		 2837}
2838
f18c16de 2839void net_host_device_remove(Monitor *mon, const QDict *qdict)
6f338c34 2840{
6f338c34 2841 VLANClientState *vc;
f18c16de
LC		 2842 int vlan_id = qdict_get_int(qdict, "vlan_id");
2843 const char *device = qdict_get_str(qdict, "device");
6f338c34 2844
1a609520 2845 vc = qemu_find_vlan_client_by_name(mon, vlan_id, device);
6f338c34 2846 if (!vc) {
6f338c34
AL		 2847 return;
2848 }
e8f1f9db
AL		 2849 if (!net_host_check_device(vc->model)) {
2850 monitor_printf(mon, "invalid host network device %s\n", device);
2851 return;
2852 }
6f338c34
AL		 2853 qemu_del_vlan_client(vc);
2854}
2855
63a01ef8
AL		 2856int net_client_parse(const char *str)
2857{
2858 const char *p;
2859 char *q;
2860 char device[64];
2861
2862 p = str;
2863 q = device;
2864 while (*p != '\0' && *p != ',') {
2865 if ((q - device) < sizeof(device) - 1)
2866 *q++ = *p;
2867 p++;
2868 }
2869 *q = '\0';
2870 if (*p == ',')
2871 p++;
2872
10ae5a7a 2873 return net_client_init(NULL, device, p);
63a01ef8
AL		 2874}
2875
406c8df3
GC		 2876void net_set_boot_mask(int net_boot_mask)
2877{
2878 int i;
2879
2880 /* Only the first four NICs may be bootable */
2881 net_boot_mask = net_boot_mask & 0xF;
2882
2883 for (i = 0; i < nb_nics; i++) {
2884 if (net_boot_mask & (1 << i)) {
2885 nd_table[i].bootable = 1;
2886 net_boot_mask &= ~(1 << i);
2887 }
2888 }
2889
2890 if (net_boot_mask) {
2891 fprintf(stderr, "Cannot boot from non-existent NIC\n");
2892 exit(1);
2893 }
2894}
2895
376253ec 2896void do_info_network(Monitor *mon)
63a01ef8
AL		 2897{
2898 VLANState *vlan;
2899 VLANClientState *vc;
2900
2901 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
376253ec 2902 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
63a01ef8 2903 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
376253ec 2904 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
63a01ef8
AL		 2905 }
2906}
2907
f18c16de 2908void do_set_link(Monitor *mon, const QDict *qdict)
436e5e53
AL		 2909{
2910 VLANState *vlan;
2911 VLANClientState *vc = NULL;
f18c16de
LC		 2912 const char *name = qdict_get_str(qdict, "name");
2913 const char *up_or_down = qdict_get_str(qdict, "up_or_down");
436e5e53
AL		 2914
2915 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2916 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2917 if (strcmp(vc->name, name) == 0)
dd5de373
EI		 2918 goto done;
2919done:
436e5e53
AL		 2920
2921 if (!vc) {
7dc3fa09 2922 monitor_printf(mon, "could not find network device '%s'\n", name);
c3cf0d3f 2923 return;
436e5e53
AL		 2924 }
2925
2926 if (strcmp(up_or_down, "up") == 0)
2927 vc->link_down = 0;
2928 else if (strcmp(up_or_down, "down") == 0)
2929 vc->link_down = 1;
2930 else
376253ec
AL		 2931 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2932 "valid\n", up_or_down);
436e5e53 2933
34b25ca7
AL		 2934 if (vc->link_status_changed)
2935 vc->link_status_changed(vc);
436e5e53
AL		 2936}
2937
63a01ef8
AL		 2938void net_cleanup(void)
2939{
2940 VLANState *vlan;
2941
63a01ef8
AL		 2942 /* close network clients */
2943 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
b946a153 2944 VLANClientState *vc = vlan->first_client;
63a01ef8 2945
b946a153
AL		 2946 while (vc) {
2947 VLANClientState *next = vc->next;
63a01ef8 2948
b946a153
AL		 2949 qemu_del_vlan_client(vc);
2950
2951 vc = next;
63a01ef8
AL		 2952 }
2953 }
63a01ef8
AL		 2954}
2955
2956void net_client_check(void)
2957{
2958 VLANState *vlan;
2959
2960 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2961 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2962 continue;
2963 if (vlan->nb_guest_devs == 0)
2964 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2965 if (vlan->nb_host_devs == 0)
2966 fprintf(stderr,
2967 "Warning: vlan %d is not connected to host network\n",
2968 vlan->id);
2969 }
2970}
Empty description
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