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Fix some build issues for BSD.
[qemu.git] / net.c
CommitLineData
63a01ef8
AL		 1/*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24#include "hw/hw.h"
25#include "hw/boards.h"
26#include "hw/usb.h"
27#include "hw/pcmcia.h"
28#include "hw/pc.h"
29#include "hw/audiodev.h"
30#include "hw/isa.h"
31#include "hw/baum.h"
32#include "hw/bt.h"
33#include "net.h"
34#include "console.h"
35#include "sysemu.h"
36#include "gdbstub.h"
37#include "qemu-timer.h"
38#include "qemu-char.h"
39#include "block.h"
40#include "audio/audio.h"
41#include "migration.h"
42
43#include <unistd.h>
44#include <fcntl.h>
45#include <signal.h>
46#include <time.h>
47#include <errno.h>
48#include <sys/time.h>
49#include <zlib.h>
50
51#ifndef _WIN32
52#include <sys/times.h>
53#include <sys/wait.h>
54#include <termios.h>
55#include <sys/mman.h>
56#include <sys/ioctl.h>
24646c7e 57#include <sys/resource.h>
63a01ef8
AL		 58#include <sys/socket.h>
59#include <netinet/in.h>
24646c7e
BS		 60#include <net/if.h>
61#ifdef __NetBSD__
62#include <net/if_tap.h>
63#endif
64#ifdef __linux__
65#include <linux/if_tun.h>
66#endif
67#include <arpa/inet.h>
63a01ef8
AL		 68#include <dirent.h>
69#include <netdb.h>
70#include <sys/select.h>
63a01ef8
AL		 71#ifdef _BSD
72#include <sys/stat.h>
24646c7e 73#ifdef __FreeBSD__
63a01ef8 74#include <libutil.h>
24646c7e
BS		 75#else
76#include <util.h>
63a01ef8
AL		 77#endif
78#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
79#include <freebsd/stdlib.h>
80#else
81#ifdef __linux__
63a01ef8
AL		 82#include <pty.h>
83#include <malloc.h>
84#include <linux/rtc.h>
85
86/* For the benefit of older linux systems which don't supply it,
87 we use a local copy of hpet.h. */
88/* #include <linux/hpet.h> */
89#include "hpet.h"
90
91#include <linux/ppdev.h>
92#include <linux/parport.h>
93#endif
94#ifdef __sun__
95#include <sys/stat.h>
96#include <sys/ethernet.h>
97#include <sys/sockio.h>
98#include <netinet/arp.h>
99#include <netinet/in.h>
100#include <netinet/in_systm.h>
101#include <netinet/ip.h>
102#include <netinet/ip_icmp.h> // must come after ip.h
103#include <netinet/udp.h>
104#include <netinet/tcp.h>
105#include <net/if.h>
106#include <syslog.h>
107#include <stropts.h>
108#endif
109#endif
110#endif
111
112#include "qemu_socket.h"
113
114#if defined(CONFIG_SLIRP)
115#include "libslirp.h"
116#endif
117
118#if defined(__OpenBSD__)
119#include <util.h>
120#endif
121
122#if defined(CONFIG_VDE)
123#include <libvdeplug.h>
124#endif
125
126#ifdef _WIN32
127#include <malloc.h>
128#include <sys/timeb.h>
129#include <mmsystem.h>
130#define getopt_long_only getopt_long
131#define memalign(align, size) malloc(size)
132#endif
133
134#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
135#define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
136#ifdef __sun__
137#define SMBD_COMMAND "/usr/sfw/sbin/smbd"
138#else
139#define SMBD_COMMAND "/usr/sbin/smbd"
140#endif
141
142static VLANState *first_vlan;
143
144/***********************************************************/
145/* network device redirectors */
146
147#if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
148static void hex_dump(FILE *f, const uint8_t *buf, int size)
149{
150 int len, i, j, c;
151
152 for(i=0;i<size;i+=16) {
153 len = size - i;
154 if (len > 16)
155 len = 16;
156 fprintf(f, "%08x ", i);
157 for(j=0;j<16;j++) {
158 if (j < len)
159 fprintf(f, " %02x", buf[i+j]);
160 else
161 fprintf(f, " ");
162 }
163 fprintf(f, " ");
164 for(j=0;j<len;j++) {
165 c = buf[i+j];
166 if (c < ' ' || c > '~')
167 c = '.';
168 fprintf(f, "%c", c);
169 }
170 fprintf(f, "\n");
171 }
172}
173#endif
174
175static int parse_macaddr(uint8_t *macaddr, const char *p)
176{
177 int i;
178 char *last_char;
179 long int offset;
180
181 errno = 0;
182 offset = strtol(p, &last_char, 0);
183 if (0 == errno && '\0' == *last_char &&
184 offset >= 0 && offset <= 0xFFFFFF) {
185 macaddr[3] = (offset & 0xFF0000) >> 16;
186 macaddr[4] = (offset & 0xFF00) >> 8;
187 macaddr[5] = offset & 0xFF;
188 return 0;
189 } else {
190 for(i = 0; i < 6; i++) {
191 macaddr[i] = strtol(p, (char **)&p, 16);
192 if (i == 5) {
193 if (*p != '\0')
194 return -1;
195 } else {
196 if (*p != ':' && *p != '-')
197 return -1;
198 p++;
199 }
200 }
201 return 0;
202 }
203
204 return -1;
205}
206
207static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
208{
209 const char *p, *p1;
210 int len;
211 p = *pp;
212 p1 = strchr(p, sep);
213 if (!p1)
214 return -1;
215 len = p1 - p;
216 p1++;
217 if (buf_size > 0) {
218 if (len > buf_size - 1)
219 len = buf_size - 1;
220 memcpy(buf, p, len);
221 buf[len] = '\0';
222 }
223 *pp = p1;
224 return 0;
225}
226
227int parse_host_src_port(struct sockaddr_in *haddr,
228 struct sockaddr_in *saddr,
229 const char *input_str)
230{
231 char *str = strdup(input_str);
232 char *host_str = str;
233 char *src_str;
234 const char *src_str2;
235 char *ptr;
236
237 /*
238 * Chop off any extra arguments at the end of the string which
239 * would start with a comma, then fill in the src port information
240 * if it was provided else use the "any address" and "any port".
241 */
242 if ((ptr = strchr(str,',')))
243 *ptr = '\0';
244
245 if ((src_str = strchr(input_str,'@'))) {
246 *src_str = '\0';
247 src_str++;
248 }
249
250 if (parse_host_port(haddr, host_str) < 0)
251 goto fail;
252
253 src_str2 = src_str;
254 if (!src_str || *src_str == '\0')
255 src_str2 = ":0";
256
257 if (parse_host_port(saddr, src_str2) < 0)
258 goto fail;
259
260 free(str);
261 return(0);
262
263fail:
264 free(str);
265 return -1;
266}
267
268int parse_host_port(struct sockaddr_in *saddr, const char *str)
269{
270 char buf[512];
271 struct hostent *he;
272 const char *p, *r;
273 int port;
274
275 p = str;
276 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
277 return -1;
278 saddr->sin_family = AF_INET;
279 if (buf[0] == '\0') {
280 saddr->sin_addr.s_addr = 0;
281 } else {
282 if (isdigit(buf[0])) {
283 if (!inet_aton(buf, &saddr->sin_addr))
284 return -1;
285 } else {
286 if ((he = gethostbyname(buf)) == NULL)
287 return - 1;
288 saddr->sin_addr = *(struct in_addr *)he->h_addr;
289 }
290 }
291 port = strtol(p, (char **)&r, 0);
292 if (r == p)
293 return -1;
294 saddr->sin_port = htons(port);
295 return 0;
296}
297
298#ifndef _WIN32
299int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
300{
301 const char *p;
302 int len;
303
304 len = MIN(108, strlen(str));
305 p = strchr(str, ',');
306 if (p)
307 len = MIN(len, p - str);
308
309 memset(uaddr, 0, sizeof(*uaddr));
310
311 uaddr->sun_family = AF_UNIX;
312 memcpy(uaddr->sun_path, str, len);
313
314 return 0;
315}
316#endif
317
318VLANClientState *qemu_new_vlan_client(VLANState *vlan,
319 IOReadHandler *fd_read,
320 IOCanRWHandler *fd_can_read,
321 void *opaque)
322{
323 VLANClientState *vc, **pvc;
324 vc = qemu_mallocz(sizeof(VLANClientState));
325 if (!vc)
326 return NULL;
327 vc->fd_read = fd_read;
328 vc->fd_can_read = fd_can_read;
329 vc->opaque = opaque;
330 vc->vlan = vlan;
331
332 vc->next = NULL;
333 pvc = &vlan->first_client;
334 while (*pvc != NULL)
335 pvc = &(*pvc)->next;
336 *pvc = vc;
337 return vc;
338}
339
340void qemu_del_vlan_client(VLANClientState *vc)
341{
342 VLANClientState **pvc = &vc->vlan->first_client;
343
344 while (*pvc != NULL)
345 if (*pvc == vc) {
346 *pvc = vc->next;
347 free(vc);
348 break;
349 } else
350 pvc = &(*pvc)->next;
351}
352
353int qemu_can_send_packet(VLANClientState *vc1)
354{
355 VLANState *vlan = vc1->vlan;
356 VLANClientState *vc;
357
358 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
359 if (vc != vc1) {
360 if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
361 return 1;
362 }
363 }
364 return 0;
365}
366
367void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size)
368{
369 VLANState *vlan = vc1->vlan;
370 VLANClientState *vc;
371
372#ifdef DEBUG_NET
373 printf("vlan %d send:\n", vlan->id);
374 hex_dump(stdout, buf, size);
375#endif
376 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
377 if (vc != vc1) {
378 vc->fd_read(vc->opaque, buf, size);
379 }
380 }
381}
382
383#if defined(CONFIG_SLIRP)
384
385/* slirp network adapter */
386
387static int slirp_inited;
388static VLANClientState *slirp_vc;
389
390int slirp_can_output(void)
391{
392 return !slirp_vc || qemu_can_send_packet(slirp_vc);
393}
394
395void slirp_output(const uint8_t *pkt, int pkt_len)
396{
397#ifdef DEBUG_SLIRP
398 printf("slirp output:\n");
399 hex_dump(stdout, pkt, pkt_len);
400#endif
401 if (!slirp_vc)
402 return;
403 qemu_send_packet(slirp_vc, pkt, pkt_len);
404}
405
406int slirp_is_inited(void)
407{
408 return slirp_inited;
409}
410
411static void slirp_receive(void *opaque, const uint8_t *buf, int size)
412{
413#ifdef DEBUG_SLIRP
414 printf("slirp input:\n");
415 hex_dump(stdout, buf, size);
416#endif
417 slirp_input(buf, size);
418}
419
420static int net_slirp_init(VLANState *vlan)
421{
422 if (!slirp_inited) {
423 slirp_inited = 1;
424 slirp_init();
425 }
426 slirp_vc = qemu_new_vlan_client(vlan,
427 slirp_receive, NULL, NULL);
428 snprintf(slirp_vc->info_str, sizeof(slirp_vc->info_str), "user redirector");
429 return 0;
430}
431
432void net_slirp_redir(const char *redir_str)
433{
434 int is_udp;
435 char buf[256], *r;
436 const char *p;
437 struct in_addr guest_addr;
438 int host_port, guest_port;
439
440 if (!slirp_inited) {
441 slirp_inited = 1;
442 slirp_init();
443 }
444
445 p = redir_str;
446 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
447 goto fail;
448 if (!strcmp(buf, "tcp")) {
449 is_udp = 0;
450 } else if (!strcmp(buf, "udp")) {
451 is_udp = 1;
452 } else {
453 goto fail;
454 }
455
456 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
457 goto fail;
458 host_port = strtol(buf, &r, 0);
459 if (r == buf)
460 goto fail;
461
462 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
463 goto fail;
464 if (buf[0] == '\0') {
465 pstrcpy(buf, sizeof(buf), "10.0.2.15");
466 }
467 if (!inet_aton(buf, &guest_addr))
468 goto fail;
469
470 guest_port = strtol(p, &r, 0);
471 if (r == p)
472 goto fail;
473
474 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
475 fprintf(stderr, "qemu: could not set up redirection\n");
476 exit(1);
477 }
478 return;
479 fail:
480 fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
481 exit(1);
482}
483
484#ifndef _WIN32
485
486static char smb_dir[1024];
487
488static void erase_dir(char *dir_name)
489{
490 DIR *d;
491 struct dirent *de;
492 char filename[1024];
493
494 /* erase all the files in the directory */
495 if ((d = opendir(dir_name)) != 0) {
496 for(;;) {
497 de = readdir(d);
498 if (!de)
499 break;
500 if (strcmp(de->d_name, ".") != 0 &&
501 strcmp(de->d_name, "..") != 0) {
502 snprintf(filename, sizeof(filename), "%s/%s",
503 smb_dir, de->d_name);
504 if (unlink(filename) != 0) /* is it a directory? */
505 erase_dir(filename);
506 }
507 }
508 closedir(d);
509 rmdir(dir_name);
510 }
511}
512
513/* automatic user mode samba server configuration */
514static void smb_exit(void)
515{
516 erase_dir(smb_dir);
517}
518
519/* automatic user mode samba server configuration */
520void net_slirp_smb(const char *exported_dir)
521{
522 char smb_conf[1024];
523 char smb_cmdline[1024];
524 FILE *f;
525
526 if (!slirp_inited) {
527 slirp_inited = 1;
528 slirp_init();
529 }
530
531 /* XXX: better tmp dir construction */
532 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid());
533 if (mkdir(smb_dir, 0700) < 0) {
534 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
535 exit(1);
536 }
537 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
538
539 f = fopen(smb_conf, "w");
540 if (!f) {
541 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
542 exit(1);
543 }
544 fprintf(f,
545 "[global]\n"
546 "private dir=%s\n"
547 "smb ports=0\n"
548 "socket address=127.0.0.1\n"
549 "pid directory=%s\n"
550 "lock directory=%s\n"
551 "log file=%s/log.smbd\n"
552 "smb passwd file=%s/smbpasswd\n"
553 "security = share\n"
554 "[qemu]\n"
555 "path=%s\n"
556 "read only=no\n"
557 "guest ok=yes\n",
558 smb_dir,
559 smb_dir,
560 smb_dir,
561 smb_dir,
562 smb_dir,
563 exported_dir
564 );
565 fclose(f);
566 atexit(smb_exit);
567
568 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
569 SMBD_COMMAND, smb_conf);
570
571 slirp_add_exec(0, smb_cmdline, 4, 139);
572}
573
574#endif /* !defined(_WIN32) */
575void do_info_slirp(void)
576{
577 slirp_stats();
578}
579
580#endif /* CONFIG_SLIRP */
581
582#if !defined(_WIN32)
583
584typedef struct TAPState {
585 VLANClientState *vc;
586 int fd;
587 char down_script[1024];
588} TAPState;
589
590static void tap_receive(void *opaque, const uint8_t *buf, int size)
591{
592 TAPState *s = opaque;
593 int ret;
594 for(;;) {
595 ret = write(s->fd, buf, size);
596 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
597 } else {
598 break;
599 }
600 }
601}
602
603static void tap_send(void *opaque)
604{
605 TAPState *s = opaque;
606 uint8_t buf[4096];
607 int size;
608
609#ifdef __sun__
610 struct strbuf sbuf;
611 int f = 0;
612 sbuf.maxlen = sizeof(buf);
613 sbuf.buf = buf;
614 size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
615#else
616 size = read(s->fd, buf, sizeof(buf));
617#endif
618 if (size > 0) {
619 qemu_send_packet(s->vc, buf, size);
620 }
621}
622
623/* fd support */
624
625static TAPState *net_tap_fd_init(VLANState *vlan, int fd)
626{
627 TAPState *s;
628
629 s = qemu_mallocz(sizeof(TAPState));
630 if (!s)
631 return NULL;
632 s->fd = fd;
633 s->vc = qemu_new_vlan_client(vlan, tap_receive, NULL, s);
634 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
635 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "tap: fd=%d", fd);
636 return s;
637}
638
639#if defined (_BSD) || defined (__FreeBSD_kernel__)
640static int tap_open(char *ifname, int ifname_size)
641{
642 int fd;
643 char *dev;
644 struct stat s;
645
646 TFR(fd = open("/dev/tap", O_RDWR));
647 if (fd < 0) {
648 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
649 return -1;
650 }
651
652 fstat(fd, &s);
653 dev = devname(s.st_rdev, S_IFCHR);
654 pstrcpy(ifname, ifname_size, dev);
655
656 fcntl(fd, F_SETFL, O_NONBLOCK);
657 return fd;
658}
659#elif defined(__sun__)
660#define TUNNEWPPA (('T'<<16) | 0x0001)
661/*
662 * Allocate TAP device, returns opened fd.
663 * Stores dev name in the first arg(must be large enough).
664 */
665int tap_alloc(char *dev, size_t dev_size)
666{
667 int tap_fd, if_fd, ppa = -1;
668 static int ip_fd = 0;
669 char *ptr;
670
671 static int arp_fd = 0;
672 int ip_muxid, arp_muxid;
673 struct strioctl strioc_if, strioc_ppa;
674 int link_type = I_PLINK;;
675 struct lifreq ifr;
676 char actual_name[32] = "";
677
678 memset(&ifr, 0x0, sizeof(ifr));
679
680 if( *dev ){
681 ptr = dev;
682 while( *ptr && !isdigit((int)*ptr) ) ptr++;
683 ppa = atoi(ptr);
684 }
685
686 /* Check if IP device was opened */
687 if( ip_fd )
688 close(ip_fd);
689
690 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
691 if (ip_fd < 0) {
692 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
693 return -1;
694 }
695
696 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
697 if (tap_fd < 0) {
698 syslog(LOG_ERR, "Can't open /dev/tap");
699 return -1;
700 }
701
702 /* Assign a new PPA and get its unit number. */
703 strioc_ppa.ic_cmd = TUNNEWPPA;
704 strioc_ppa.ic_timout = 0;
705 strioc_ppa.ic_len = sizeof(ppa);
706 strioc_ppa.ic_dp = (char *)&ppa;
707 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
708 syslog (LOG_ERR, "Can't assign new interface");
709
710 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
711 if (if_fd < 0) {
712 syslog(LOG_ERR, "Can't open /dev/tap (2)");
713 return -1;
714 }
715 if(ioctl(if_fd, I_PUSH, "ip") < 0){
716 syslog(LOG_ERR, "Can't push IP module");
717 return -1;
718 }
719
720 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
721 syslog(LOG_ERR, "Can't get flags\n");
722
723 snprintf (actual_name, 32, "tap%d", ppa);
724 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
725
726 ifr.lifr_ppa = ppa;
727 /* Assign ppa according to the unit number returned by tun device */
728
729 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
730 syslog (LOG_ERR, "Can't set PPA %d", ppa);
731 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
732 syslog (LOG_ERR, "Can't get flags\n");
733 /* Push arp module to if_fd */
734 if (ioctl (if_fd, I_PUSH, "arp") < 0)
735 syslog (LOG_ERR, "Can't push ARP module (2)");
736
737 /* Push arp module to ip_fd */
738 if (ioctl (ip_fd, I_POP, NULL) < 0)
739 syslog (LOG_ERR, "I_POP failed\n");
740 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
741 syslog (LOG_ERR, "Can't push ARP module (3)\n");
742 /* Open arp_fd */
743 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
744 if (arp_fd < 0)
745 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
746
747 /* Set ifname to arp */
748 strioc_if.ic_cmd = SIOCSLIFNAME;
749 strioc_if.ic_timout = 0;
750 strioc_if.ic_len = sizeof(ifr);
751 strioc_if.ic_dp = (char *)&ifr;
752 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
753 syslog (LOG_ERR, "Can't set ifname to arp\n");
754 }
755
756 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
757 syslog(LOG_ERR, "Can't link TAP device to IP");
758 return -1;
759 }
760
761 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
762 syslog (LOG_ERR, "Can't link TAP device to ARP");
763
764 close (if_fd);
765
766 memset(&ifr, 0x0, sizeof(ifr));
767 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
768 ifr.lifr_ip_muxid = ip_muxid;
769 ifr.lifr_arp_muxid = arp_muxid;
770
771 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
772 {
773 ioctl (ip_fd, I_PUNLINK , arp_muxid);
774 ioctl (ip_fd, I_PUNLINK, ip_muxid);
775 syslog (LOG_ERR, "Can't set multiplexor id");
776 }
777
778 snprintf(dev, dev_size, "tap%d", ppa);
779 return tap_fd;
780}
781
782static int tap_open(char *ifname, int ifname_size)
783{
784 char dev[10]="";
785 int fd;
786 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
787 fprintf(stderr, "Cannot allocate TAP device\n");
788 return -1;
789 }
790 pstrcpy(ifname, ifname_size, dev);
791 fcntl(fd, F_SETFL, O_NONBLOCK);
792 return fd;
793}
794#else
795static int tap_open(char *ifname, int ifname_size)
796{
797 struct ifreq ifr;
798 int fd, ret;
799
800 TFR(fd = open("/dev/net/tun", O_RDWR));
801 if (fd < 0) {
802 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
803 return -1;
804 }
805 memset(&ifr, 0, sizeof(ifr));
806 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
807 if (ifname[0] != '\0')
808 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
809 else
810 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
811 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
812 if (ret != 0) {
813 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
814 close(fd);
815 return -1;
816 }
817 pstrcpy(ifname, ifname_size, ifr.ifr_name);
818 fcntl(fd, F_SETFL, O_NONBLOCK);
819 return fd;
820}
821#endif
822
823static int launch_script(const char *setup_script, const char *ifname, int fd)
824{
825 int pid, status;
826 char *args[3];
827 char **parg;
828
829 /* try to launch network script */
830 pid = fork();
831 if (pid >= 0) {
832 if (pid == 0) {
833 int open_max = sysconf (_SC_OPEN_MAX), i;
834 for (i = 0; i < open_max; i++)
835 if (i != STDIN_FILENO &&
836 i != STDOUT_FILENO &&
837 i != STDERR_FILENO &&
838 i != fd)
839 close(i);
840
841 parg = args;
842 *parg++ = (char *)setup_script;
843 *parg++ = (char *)ifname;
844 *parg++ = NULL;
845 execv(setup_script, args);
846 _exit(1);
847 }
848 while (waitpid(pid, &status, 0) != pid);
849 if (!WIFEXITED(status) ||
850 WEXITSTATUS(status) != 0) {
851 fprintf(stderr, "%s: could not launch network script\n",
852 setup_script);
853 return -1;
854 }
855 }
856 return 0;
857}
858
859static int net_tap_init(VLANState *vlan, const char *ifname1,
860 const char *setup_script, const char *down_script)
861{
862 TAPState *s;
863 int fd;
864 char ifname[128];
865
866 if (ifname1 != NULL)
867 pstrcpy(ifname, sizeof(ifname), ifname1);
868 else
869 ifname[0] = '\0';
870 TFR(fd = tap_open(ifname, sizeof(ifname)));
871 if (fd < 0)
872 return -1;
873
874 if (!setup_script || !strcmp(setup_script, "no"))
875 setup_script = "";
876 if (setup_script[0] != '\0') {
877 if (launch_script(setup_script, ifname, fd))
878 return -1;
879 }
880 s = net_tap_fd_init(vlan, fd);
881 if (!s)
882 return -1;
883 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
884 "tap: ifname=%s setup_script=%s", ifname, setup_script);
885 if (down_script && strcmp(down_script, "no"))
886 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
887 return 0;
888}
889
890#endif /* !_WIN32 */
891
892#if defined(CONFIG_VDE)
893typedef struct VDEState {
894 VLANClientState *vc;
895 VDECONN *vde;
896} VDEState;
897
898static void vde_to_qemu(void *opaque)
899{
900 VDEState *s = opaque;
901 uint8_t buf[4096];
902 int size;
903
904 size = vde_recv(s->vde, buf, sizeof(buf), 0);
905 if (size > 0) {
906 qemu_send_packet(s->vc, buf, size);
907 }
908}
909
910static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
911{
912 VDEState *s = opaque;
913 int ret;
914 for(;;) {
915 ret = vde_send(s->vde, buf, size, 0);
916 if (ret < 0 && errno == EINTR) {
917 } else {
918 break;
919 }
920 }
921}
922
923static int net_vde_init(VLANState *vlan, const char *sock, int port,
924 const char *group, int mode)
925{
926 VDEState *s;
927 char *init_group = strlen(group) ? (char *)group : NULL;
928 char *init_sock = strlen(sock) ? (char *)sock : NULL;
929
930 struct vde_open_args args = {
931 .port = port,
932 .group = init_group,
933 .mode = mode,
934 };
935
936 s = qemu_mallocz(sizeof(VDEState));
937 if (!s)
938 return -1;
939 s->vde = vde_open(init_sock, "QEMU", &args);
940 if (!s->vde){
941 free(s);
942 return -1;
943 }
944 s->vc = qemu_new_vlan_client(vlan, vde_from_qemu, NULL, s);
945 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
946 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "vde: sock=%s fd=%d",
947 sock, vde_datafd(s->vde));
948 return 0;
949}
950#endif
951
952/* network connection */
953typedef struct NetSocketState {
954 VLANClientState *vc;
955 int fd;
956 int state; /* 0 = getting length, 1 = getting data */
957 int index;
958 int packet_len;
959 uint8_t buf[4096];
960 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
961} NetSocketState;
962
963typedef struct NetSocketListenState {
964 VLANState *vlan;
965 int fd;
966} NetSocketListenState;
967
968/* XXX: we consider we can send the whole packet without blocking */
969static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
970{
971 NetSocketState *s = opaque;
972 uint32_t len;
973 len = htonl(size);
974
975 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
976 send_all(s->fd, buf, size);
977}
978
979static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
980{
981 NetSocketState *s = opaque;
982 sendto(s->fd, buf, size, 0,
983 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
984}
985
986static void net_socket_send(void *opaque)
987{
988 NetSocketState *s = opaque;
989 int l, size, err;
990 uint8_t buf1[4096];
991 const uint8_t *buf;
992
993 size = recv(s->fd, buf1, sizeof(buf1), 0);
994 if (size < 0) {
995 err = socket_error();
996 if (err != EWOULDBLOCK)
997 goto eoc;
998 } else if (size == 0) {
999 /* end of connection */
1000 eoc:
1001 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1002 closesocket(s->fd);
1003 return;
1004 }
1005 buf = buf1;
1006 while (size > 0) {
1007 /* reassemble a packet from the network */
1008 switch(s->state) {
1009 case 0:
1010 l = 4 - s->index;
1011 if (l > size)
1012 l = size;
1013 memcpy(s->buf + s->index, buf, l);
1014 buf += l;
1015 size -= l;
1016 s->index += l;
1017 if (s->index == 4) {
1018 /* got length */
1019 s->packet_len = ntohl(*(uint32_t *)s->buf);
1020 s->index = 0;
1021 s->state = 1;
1022 }
1023 break;
1024 case 1:
1025 l = s->packet_len - s->index;
1026 if (l > size)
1027 l = size;
1028 memcpy(s->buf + s->index, buf, l);
1029 s->index += l;
1030 buf += l;
1031 size -= l;
1032 if (s->index >= s->packet_len) {
1033 qemu_send_packet(s->vc, s->buf, s->packet_len);
1034 s->index = 0;
1035 s->state = 0;
1036 }
1037 break;
1038 }
1039 }
1040}
1041
1042static void net_socket_send_dgram(void *opaque)
1043{
1044 NetSocketState *s = opaque;
1045 int size;
1046
1047 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1048 if (size < 0)
1049 return;
1050 if (size == 0) {
1051 /* end of connection */
1052 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1053 return;
1054 }
1055 qemu_send_packet(s->vc, s->buf, size);
1056}
1057
1058static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1059{
1060 struct ip_mreq imr;
1061 int fd;
1062 int val, ret;
1063 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1064 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1065 inet_ntoa(mcastaddr->sin_addr),
1066 (int)ntohl(mcastaddr->sin_addr.s_addr));
1067 return -1;
1068
1069 }
1070 fd = socket(PF_INET, SOCK_DGRAM, 0);
1071 if (fd < 0) {
1072 perror("socket(PF_INET, SOCK_DGRAM)");
1073 return -1;
1074 }
1075
1076 val = 1;
1077 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1078 (const char *)&val, sizeof(val));
1079 if (ret < 0) {
1080 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1081 goto fail;
1082 }
1083
1084 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1085 if (ret < 0) {
1086 perror("bind");
1087 goto fail;
1088 }
1089
1090 /* Add host to multicast group */
1091 imr.imr_multiaddr = mcastaddr->sin_addr;
1092 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1093
1094 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1095 (const char *)&imr, sizeof(struct ip_mreq));
1096 if (ret < 0) {
1097 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1098 goto fail;
1099 }
1100
1101 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1102 val = 1;
1103 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1104 (const char *)&val, sizeof(val));
1105 if (ret < 0) {
1106 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1107 goto fail;
1108 }
1109
1110 socket_set_nonblock(fd);
1111 return fd;
1112fail:
1113 if (fd >= 0)
1114 closesocket(fd);
1115 return -1;
1116}
1117
1118static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, int fd,
1119 int is_connected)
1120{
1121 struct sockaddr_in saddr;
1122 int newfd;
1123 socklen_t saddr_len;
1124 NetSocketState *s;
1125
1126 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1127 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1128 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1129 */
1130
1131 if (is_connected) {
1132 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1133 /* must be bound */
1134 if (saddr.sin_addr.s_addr==0) {
1135 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1136 fd);
1137 return NULL;
1138 }
1139 /* clone dgram socket */
1140 newfd = net_socket_mcast_create(&saddr);
1141 if (newfd < 0) {
1142 /* error already reported by net_socket_mcast_create() */
1143 close(fd);
1144 return NULL;
1145 }
1146 /* clone newfd to fd, close newfd */
1147 dup2(newfd, fd);
1148 close(newfd);
1149
1150 } else {
1151 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1152 fd, strerror(errno));
1153 return NULL;
1154 }
1155 }
1156
1157 s = qemu_mallocz(sizeof(NetSocketState));
1158 if (!s)
1159 return NULL;
1160 s->fd = fd;
1161
1162 s->vc = qemu_new_vlan_client(vlan, net_socket_receive_dgram, NULL, s);
1163 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1164
1165 /* mcast: save bound address as dst */
1166 if (is_connected) s->dgram_dst=saddr;
1167
1168 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1169 "socket: fd=%d (%s mcast=%s:%d)",
1170 fd, is_connected? "cloned" : "",
1171 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1172 return s;
1173}
1174
1175static void net_socket_connect(void *opaque)
1176{
1177 NetSocketState *s = opaque;
1178 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1179}
1180
1181static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, int fd,
1182 int is_connected)
1183{
1184 NetSocketState *s;
1185 s = qemu_mallocz(sizeof(NetSocketState));
1186 if (!s)
1187 return NULL;
1188 s->fd = fd;
1189 s->vc = qemu_new_vlan_client(vlan,
1190 net_socket_receive, NULL, s);
1191 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1192 "socket: fd=%d", fd);
1193 if (is_connected) {
1194 net_socket_connect(s);
1195 } else {
1196 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1197 }
1198 return s;
1199}
1200
1201static NetSocketState *net_socket_fd_init(VLANState *vlan, int fd,
1202 int is_connected)
1203{
1204 int so_type=-1, optlen=sizeof(so_type);
1205
1206 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1207 (socklen_t *)&optlen)< 0) {
1208 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1209 return NULL;
1210 }
1211 switch(so_type) {
1212 case SOCK_DGRAM:
1213 return net_socket_fd_init_dgram(vlan, fd, is_connected);
1214 case SOCK_STREAM:
1215 return net_socket_fd_init_stream(vlan, fd, is_connected);
1216 default:
1217 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1218 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1219 return net_socket_fd_init_stream(vlan, fd, is_connected);
1220 }
1221 return NULL;
1222}
1223
1224static void net_socket_accept(void *opaque)
1225{
1226 NetSocketListenState *s = opaque;
1227 NetSocketState *s1;
1228 struct sockaddr_in saddr;
1229 socklen_t len;
1230 int fd;
1231
1232 for(;;) {
1233 len = sizeof(saddr);
1234 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1235 if (fd < 0 && errno != EINTR) {
1236 return;
1237 } else if (fd >= 0) {
1238 break;
1239 }
1240 }
1241 s1 = net_socket_fd_init(s->vlan, fd, 1);
1242 if (!s1) {
1243 closesocket(fd);
1244 } else {
1245 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1246 "socket: connection from %s:%d",
1247 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1248 }
1249}
1250
1251static int net_socket_listen_init(VLANState *vlan, const char *host_str)
1252{
1253 NetSocketListenState *s;
1254 int fd, val, ret;
1255 struct sockaddr_in saddr;
1256
1257 if (parse_host_port(&saddr, host_str) < 0)
1258 return -1;
1259
1260 s = qemu_mallocz(sizeof(NetSocketListenState));
1261 if (!s)
1262 return -1;
1263
1264 fd = socket(PF_INET, SOCK_STREAM, 0);
1265 if (fd < 0) {
1266 perror("socket");
1267 return -1;
1268 }
1269 socket_set_nonblock(fd);
1270
1271 /* allow fast reuse */
1272 val = 1;
1273 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1274
1275 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1276 if (ret < 0) {
1277 perror("bind");
1278 return -1;
1279 }
1280 ret = listen(fd, 0);
1281 if (ret < 0) {
1282 perror("listen");
1283 return -1;
1284 }
1285 s->vlan = vlan;
1286 s->fd = fd;
1287 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1288 return 0;
1289}
1290
1291static int net_socket_connect_init(VLANState *vlan, const char *host_str)
1292{
1293 NetSocketState *s;
1294 int fd, connected, ret, err;
1295 struct sockaddr_in saddr;
1296
1297 if (parse_host_port(&saddr, host_str) < 0)
1298 return -1;
1299
1300 fd = socket(PF_INET, SOCK_STREAM, 0);
1301 if (fd < 0) {
1302 perror("socket");
1303 return -1;
1304 }
1305 socket_set_nonblock(fd);
1306
1307 connected = 0;
1308 for(;;) {
1309 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1310 if (ret < 0) {
1311 err = socket_error();
1312 if (err == EINTR || err == EWOULDBLOCK) {
1313 } else if (err == EINPROGRESS) {
1314 break;
1315#ifdef _WIN32
1316 } else if (err == WSAEALREADY) {
1317 break;
1318#endif
1319 } else {
1320 perror("connect");
1321 closesocket(fd);
1322 return -1;
1323 }
1324 } else {
1325 connected = 1;
1326 break;
1327 }
1328 }
1329 s = net_socket_fd_init(vlan, fd, connected);
1330 if (!s)
1331 return -1;
1332 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1333 "socket: connect to %s:%d",
1334 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1335 return 0;
1336}
1337
1338static int net_socket_mcast_init(VLANState *vlan, const char *host_str)
1339{
1340 NetSocketState *s;
1341 int fd;
1342 struct sockaddr_in saddr;
1343
1344 if (parse_host_port(&saddr, host_str) < 0)
1345 return -1;
1346
1347
1348 fd = net_socket_mcast_create(&saddr);
1349 if (fd < 0)
1350 return -1;
1351
1352 s = net_socket_fd_init(vlan, fd, 0);
1353 if (!s)
1354 return -1;
1355
1356 s->dgram_dst = saddr;
1357
1358 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1359 "socket: mcast=%s:%d",
1360 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1361 return 0;
1362
1363}
1364
1365/* find or alloc a new VLAN */
1366VLANState *qemu_find_vlan(int id)
1367{
1368 VLANState **pvlan, *vlan;
1369 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1370 if (vlan->id == id)
1371 return vlan;
1372 }
1373 vlan = qemu_mallocz(sizeof(VLANState));
1374 if (!vlan)
1375 return NULL;
1376 vlan->id = id;
1377 vlan->next = NULL;
1378 pvlan = &first_vlan;
1379 while (*pvlan != NULL)
1380 pvlan = &(*pvlan)->next;
1381 *pvlan = vlan;
1382 return vlan;
1383}
1384
1385int net_client_init(const char *device, const char *p)
1386{
1387 char buf[1024];
1388 int vlan_id, ret;
1389 VLANState *vlan;
1390
1391 vlan_id = 0;
1392 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1393 vlan_id = strtol(buf, NULL, 0);
1394 }
1395 vlan = qemu_find_vlan(vlan_id);
1396 if (!vlan) {
1397 fprintf(stderr, "Could not create vlan %d\n", vlan_id);
1398 return -1;
1399 }
1400 if (!strcmp(device, "nic")) {
1401 NICInfo *nd;
1402 uint8_t *macaddr;
1403
1404 if (nb_nics >= MAX_NICS) {
1405 fprintf(stderr, "Too Many NICs\n");
1406 return -1;
1407 }
1408 nd = &nd_table[nb_nics];
1409 macaddr = nd->macaddr;
1410 macaddr[0] = 0x52;
1411 macaddr[1] = 0x54;
1412 macaddr[2] = 0x00;
1413 macaddr[3] = 0x12;
1414 macaddr[4] = 0x34;
1415 macaddr[5] = 0x56 + nb_nics;
1416
1417 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
1418 if (parse_macaddr(macaddr, buf) < 0) {
1419 fprintf(stderr, "invalid syntax for ethernet address\n");
1420 return -1;
1421 }
1422 }
1423 if (get_param_value(buf, sizeof(buf), "model", p)) {
1424 nd->model = strdup(buf);
1425 }
1426 nd->vlan = vlan;
1427 nb_nics++;
1428 vlan->nb_guest_devs++;
1429 ret = 0;
1430 } else
1431 if (!strcmp(device, "none")) {
1432 /* does nothing. It is needed to signal that no network cards
1433 are wanted */
1434 ret = 0;
1435 } else
1436#ifdef CONFIG_SLIRP
1437 if (!strcmp(device, "user")) {
1438 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
1439 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
1440 }
1441 vlan->nb_host_devs++;
1442 ret = net_slirp_init(vlan);
1443 } else
1444#endif
1445#ifdef _WIN32
1446 if (!strcmp(device, "tap")) {
1447 char ifname[64];
1448 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1449 fprintf(stderr, "tap: no interface name\n");
1450 return -1;
1451 }
1452 vlan->nb_host_devs++;
1453 ret = tap_win32_init(vlan, ifname);
1454 } else
1455#else
1456 if (!strcmp(device, "tap")) {
1457 char ifname[64];
1458 char setup_script[1024], down_script[1024];
1459 int fd;
1460 vlan->nb_host_devs++;
1461 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1462 fd = strtol(buf, NULL, 0);
1463 fcntl(fd, F_SETFL, O_NONBLOCK);
1464 ret = -1;
1465 if (net_tap_fd_init(vlan, fd))
1466 ret = 0;
1467 } else {
1468 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1469 ifname[0] = '\0';
1470 }
1471 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
1472 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
1473 }
1474 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
1475 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
1476 }
1477 ret = net_tap_init(vlan, ifname, setup_script, down_script);
1478 }
1479 } else
1480#endif
1481 if (!strcmp(device, "socket")) {
1482 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1483 int fd;
1484 fd = strtol(buf, NULL, 0);
1485 ret = -1;
1486 if (net_socket_fd_init(vlan, fd, 1))
1487 ret = 0;
1488 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
1489 ret = net_socket_listen_init(vlan, buf);
1490 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
1491 ret = net_socket_connect_init(vlan, buf);
1492 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
1493 ret = net_socket_mcast_init(vlan, buf);
1494 } else {
1495 fprintf(stderr, "Unknown socket options: %s\n", p);
1496 return -1;
1497 }
1498 vlan->nb_host_devs++;
1499 } else
1500#ifdef CONFIG_VDE
1501 if (!strcmp(device, "vde")) {
1502 char vde_sock[1024], vde_group[512];
1503 int vde_port, vde_mode;
1504 vlan->nb_host_devs++;
1505 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
1506 vde_sock[0] = '\0';
1507 }
1508 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
1509 vde_port = strtol(buf, NULL, 10);
1510 } else {
1511 vde_port = 0;
1512 }
1513 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
1514 vde_group[0] = '\0';
1515 }
1516 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
1517 vde_mode = strtol(buf, NULL, 8);
1518 } else {
1519 vde_mode = 0700;
1520 }
1521 ret = net_vde_init(vlan, vde_sock, vde_port, vde_group, vde_mode);
1522 } else
1523#endif
1524 {
1525 fprintf(stderr, "Unknown network device: %s\n", device);
1526 return -1;
1527 }
1528 if (ret < 0) {
1529 fprintf(stderr, "Could not initialize device '%s'\n", device);
1530 }
1531
1532 return ret;
1533}
1534
1535int net_client_parse(const char *str)
1536{
1537 const char *p;
1538 char *q;
1539 char device[64];
1540
1541 p = str;
1542 q = device;
1543 while (*p != '\0' && *p != ',') {
1544 if ((q - device) < sizeof(device) - 1)
1545 *q++ = *p;
1546 p++;
1547 }
1548 *q = '\0';
1549 if (*p == ',')
1550 p++;
1551
1552 return net_client_init(device, p);
1553}
1554
1555void do_info_network(void)
1556{
1557 VLANState *vlan;
1558 VLANClientState *vc;
1559
1560 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1561 term_printf("VLAN %d devices:\n", vlan->id);
1562 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
1563 term_printf(" %s\n", vc->info_str);
1564 }
1565}
1566
1567void net_cleanup(void)
1568{
1569 VLANState *vlan;
1570
1571#if !defined(_WIN32)
1572 /* close network clients */
1573 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1574 VLANClientState *vc;
1575
1576 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
1577 if (vc->fd_read == tap_receive) {
1578 char ifname[64];
1579 TAPState *s = vc->opaque;
1580
1581 if (sscanf(vc->info_str, "tap: ifname=%63s ", ifname) == 1 &&
1582 s->down_script[0])
1583 launch_script(s->down_script, ifname, s->fd);
1584 }
1585#if defined(CONFIG_VDE)
1586 if (vc->fd_read == vde_from_qemu) {
1587 VDEState *s = vc->opaque;
1588 vde_close(s->vde);
1589 }
1590#endif
1591 }
1592 }
1593#endif
1594}
1595
1596void net_client_check(void)
1597{
1598 VLANState *vlan;
1599
1600 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1601 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
1602 continue;
1603 if (vlan->nb_guest_devs == 0)
1604 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
1605 if (vlan->nb_host_devs == 0)
1606 fprintf(stderr,
1607 "Warning: vlan %d is not connected to host network\n",
1608 vlan->id);
1609 }
1610}
Qemu copy for testing