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