fix spell error. pvao->pavo
[qemu/qemu-JZ.git] / net.c
blob15f915396de05eb85aa72b51883d8e02500c462c
1 /*
2 * QEMU System Emulator
4 * Copyright (c) 2003-2008 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 #include "qemu-common.h"
25 #include "net.h"
26 #include "console.h"
27 #include "sysemu.h"
28 #include "qemu-timer.h"
29 #include "qemu-char.h"
30 #include "audio/audio.h"
32 #include <unistd.h>
33 #include <fcntl.h>
34 #include <signal.h>
35 #include <time.h>
36 #include <errno.h>
37 #include <sys/time.h>
38 #include <zlib.h>
40 #ifndef _WIN32
41 #include <sys/times.h>
42 #include <sys/wait.h>
43 #include <termios.h>
44 #include <sys/mman.h>
45 #include <sys/ioctl.h>
46 #include <sys/resource.h>
47 #include <sys/socket.h>
48 #include <netinet/in.h>
49 #include <net/if.h>
50 #ifdef __NetBSD__
51 #include <net/if_tap.h>
52 #endif
53 #ifdef __linux__
54 #include <linux/if_tun.h>
55 #endif
56 #include <arpa/inet.h>
57 #include <dirent.h>
58 #include <netdb.h>
59 #include <sys/select.h>
60 #ifdef _BSD
61 #include <sys/stat.h>
62 #ifdef __FreeBSD__
63 #include <libutil.h>
64 #else
65 #include <util.h>
66 #endif
67 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
68 #include <freebsd/stdlib.h>
69 #else
70 #ifdef __linux__
71 #include <pty.h>
72 #include <malloc.h>
73 #include <linux/rtc.h>
75 /* For the benefit of older linux systems which don't supply it,
76 we use a local copy of hpet.h. */
77 /* #include <linux/hpet.h> */
78 #include "hpet.h"
80 #include <linux/ppdev.h>
81 #include <linux/parport.h>
82 #endif
83 #ifdef __sun__
84 #include <sys/stat.h>
85 #include <sys/ethernet.h>
86 #include <sys/sockio.h>
87 #include <netinet/arp.h>
88 #include <netinet/in.h>
89 #include <netinet/in_systm.h>
90 #include <netinet/ip.h>
91 #include <netinet/ip_icmp.h> // must come after ip.h
92 #include <netinet/udp.h>
93 #include <netinet/tcp.h>
94 #include <net/if.h>
95 #include <syslog.h>
96 #include <stropts.h>
97 #endif
98 #endif
99 #endif
101 #include "qemu_socket.h"
103 #if defined(CONFIG_SLIRP)
104 #include "libslirp.h"
105 #endif
107 #if defined(__OpenBSD__)
108 #include <util.h>
109 #endif
111 #if defined(CONFIG_VDE)
112 #include <libvdeplug.h>
113 #endif
115 #ifdef _WIN32
116 #include <malloc.h>
117 #include <sys/timeb.h>
118 #include <mmsystem.h>
119 #define getopt_long_only getopt_long
120 #define memalign(align, size) malloc(size)
121 #endif
123 static VLANState *first_vlan;
125 /***********************************************************/
126 /* network device redirectors */
128 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
129 static void hex_dump(FILE *f, const uint8_t *buf, int size)
131 int len, i, j, c;
133 for(i=0;i<size;i+=16) {
134 len = size - i;
135 if (len > 16)
136 len = 16;
137 fprintf(f, "%08x ", i);
138 for(j=0;j<16;j++) {
139 if (j < len)
140 fprintf(f, " %02x", buf[i+j]);
141 else
142 fprintf(f, " ");
144 fprintf(f, " ");
145 for(j=0;j<len;j++) {
146 c = buf[i+j];
147 if (c < ' ' || c > '~')
148 c = '.';
149 fprintf(f, "%c", c);
151 fprintf(f, "\n");
154 #endif
156 static int parse_macaddr(uint8_t *macaddr, const char *p)
158 int i;
159 char *last_char;
160 long int offset;
162 errno = 0;
163 offset = strtol(p, &last_char, 0);
164 if (0 == errno && '\0' == *last_char &&
165 offset >= 0 && offset <= 0xFFFFFF) {
166 macaddr[3] = (offset & 0xFF0000) >> 16;
167 macaddr[4] = (offset & 0xFF00) >> 8;
168 macaddr[5] = offset & 0xFF;
169 return 0;
170 } else {
171 for(i = 0; i < 6; i++) {
172 macaddr[i] = strtol(p, (char **)&p, 16);
173 if (i == 5) {
174 if (*p != '\0')
175 return -1;
176 } else {
177 if (*p != ':' && *p != '-')
178 return -1;
179 p++;
182 return 0;
185 return -1;
188 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
190 const char *p, *p1;
191 int len;
192 p = *pp;
193 p1 = strchr(p, sep);
194 if (!p1)
195 return -1;
196 len = p1 - p;
197 p1++;
198 if (buf_size > 0) {
199 if (len > buf_size - 1)
200 len = buf_size - 1;
201 memcpy(buf, p, len);
202 buf[len] = '\0';
204 *pp = p1;
205 return 0;
208 int parse_host_src_port(struct sockaddr_in *haddr,
209 struct sockaddr_in *saddr,
210 const char *input_str)
212 char *str = strdup(input_str);
213 char *host_str = str;
214 char *src_str;
215 const char *src_str2;
216 char *ptr;
219 * Chop off any extra arguments at the end of the string which
220 * would start with a comma, then fill in the src port information
221 * if it was provided else use the "any address" and "any port".
223 if ((ptr = strchr(str,',')))
224 *ptr = '\0';
226 if ((src_str = strchr(input_str,'@'))) {
227 *src_str = '\0';
228 src_str++;
231 if (parse_host_port(haddr, host_str) < 0)
232 goto fail;
234 src_str2 = src_str;
235 if (!src_str || *src_str == '\0')
236 src_str2 = ":0";
238 if (parse_host_port(saddr, src_str2) < 0)
239 goto fail;
241 free(str);
242 return(0);
244 fail:
245 free(str);
246 return -1;
249 int parse_host_port(struct sockaddr_in *saddr, const char *str)
251 char buf[512];
252 struct hostent *he;
253 const char *p, *r;
254 int port;
256 p = str;
257 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
258 return -1;
259 saddr->sin_family = AF_INET;
260 if (buf[0] == '\0') {
261 saddr->sin_addr.s_addr = 0;
262 } else {
263 if (qemu_isdigit(buf[0])) {
264 if (!inet_aton(buf, &saddr->sin_addr))
265 return -1;
266 } else {
267 if ((he = gethostbyname(buf)) == NULL)
268 return - 1;
269 saddr->sin_addr = *(struct in_addr *)he->h_addr;
272 port = strtol(p, (char **)&r, 0);
273 if (r == p)
274 return -1;
275 saddr->sin_port = htons(port);
276 return 0;
279 #if !defined(_WIN32) && 0
280 static int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
282 const char *p;
283 int len;
285 len = MIN(108, strlen(str));
286 p = strchr(str, ',');
287 if (p)
288 len = MIN(len, p - str);
290 memset(uaddr, 0, sizeof(*uaddr));
292 uaddr->sun_family = AF_UNIX;
293 memcpy(uaddr->sun_path, str, len);
295 return 0;
297 #endif
299 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6])
301 snprintf(vc->info_str, sizeof(vc->info_str),
302 "macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
303 macaddr[0], macaddr[1], macaddr[2],
304 macaddr[3], macaddr[4], macaddr[5]);
307 static char *assign_name(VLANClientState *vc1, const char *model)
309 VLANState *vlan;
310 char buf[256];
311 int id = 0;
313 for (vlan = first_vlan; vlan; vlan = vlan->next) {
314 VLANClientState *vc;
316 for (vc = vlan->first_client; vc; vc = vc->next)
317 if (vc != vc1 && strcmp(vc->model, model) == 0)
318 id++;
321 snprintf(buf, sizeof(buf), "%s.%d", model, id);
323 return strdup(buf);
326 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
327 const char *model,
328 const char *name,
329 IOReadHandler *fd_read,
330 IOCanRWHandler *fd_can_read,
331 void *opaque)
333 VLANClientState *vc, **pvc;
334 vc = qemu_mallocz(sizeof(VLANClientState));
335 if (!vc)
336 return NULL;
337 vc->model = strdup(model);
338 if (name)
339 vc->name = strdup(name);
340 else
341 vc->name = assign_name(vc, model);
342 vc->fd_read = fd_read;
343 vc->fd_can_read = fd_can_read;
344 vc->opaque = opaque;
345 vc->vlan = vlan;
347 vc->next = NULL;
348 pvc = &vlan->first_client;
349 while (*pvc != NULL)
350 pvc = &(*pvc)->next;
351 *pvc = vc;
352 return vc;
355 void qemu_del_vlan_client(VLANClientState *vc)
357 VLANClientState **pvc = &vc->vlan->first_client;
359 while (*pvc != NULL)
360 if (*pvc == vc) {
361 *pvc = vc->next;
362 free(vc->name);
363 free(vc->model);
364 free(vc);
365 break;
366 } else
367 pvc = &(*pvc)->next;
370 int qemu_can_send_packet(VLANClientState *vc1)
372 VLANState *vlan = vc1->vlan;
373 VLANClientState *vc;
375 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
376 if (vc != vc1) {
377 if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
378 return 1;
381 return 0;
384 void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size)
386 VLANState *vlan = vc1->vlan;
387 VLANClientState *vc;
389 #ifdef DEBUG_NET
390 printf("vlan %d send:\n", vlan->id);
391 hex_dump(stdout, buf, size);
392 #endif
393 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
394 if (vc != vc1) {
395 vc->fd_read(vc->opaque, buf, size);
400 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
401 int iovcnt)
403 uint8_t buffer[4096];
404 size_t offset = 0;
405 int i;
407 for (i = 0; i < iovcnt; i++) {
408 size_t len;
410 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
411 memcpy(buffer + offset, iov[i].iov_base, len);
412 offset += len;
415 vc->fd_read(vc->opaque, buffer, offset);
417 return offset;
420 ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov,
421 int iovcnt)
423 VLANState *vlan = vc1->vlan;
424 VLANClientState *vc;
425 ssize_t max_len = 0;
427 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
428 ssize_t len = 0;
430 if (vc == vc1)
431 continue;
433 if (vc->fd_readv)
434 len = vc->fd_readv(vc->opaque, iov, iovcnt);
435 else if (vc->fd_read)
436 len = vc_sendv_compat(vc, iov, iovcnt);
438 max_len = MAX(max_len, len);
441 return max_len;
444 #if defined(CONFIG_SLIRP)
446 /* slirp network adapter */
448 static int slirp_inited;
449 static VLANClientState *slirp_vc;
451 int slirp_can_output(void)
453 return !slirp_vc || qemu_can_send_packet(slirp_vc);
456 void slirp_output(const uint8_t *pkt, int pkt_len)
458 #ifdef DEBUG_SLIRP
459 printf("slirp output:\n");
460 hex_dump(stdout, pkt, pkt_len);
461 #endif
462 if (!slirp_vc)
463 return;
464 qemu_send_packet(slirp_vc, pkt, pkt_len);
467 int slirp_is_inited(void)
469 return slirp_inited;
472 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
474 #ifdef DEBUG_SLIRP
475 printf("slirp input:\n");
476 hex_dump(stdout, buf, size);
477 #endif
478 slirp_input(buf, size);
481 static int net_slirp_init(VLANState *vlan, const char *model, const char *name)
483 if (!slirp_inited) {
484 slirp_inited = 1;
485 slirp_init();
487 slirp_vc = qemu_new_vlan_client(vlan, model, name,
488 slirp_receive, NULL, NULL);
489 slirp_vc->info_str[0] = '\0';
490 return 0;
493 void net_slirp_redir(const char *redir_str)
495 int is_udp;
496 char buf[256], *r;
497 const char *p;
498 struct in_addr guest_addr;
499 int host_port, guest_port;
501 if (!slirp_inited) {
502 slirp_inited = 1;
503 slirp_init();
506 p = redir_str;
507 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
508 goto fail;
509 if (!strcmp(buf, "tcp")) {
510 is_udp = 0;
511 } else if (!strcmp(buf, "udp")) {
512 is_udp = 1;
513 } else {
514 goto fail;
517 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
518 goto fail;
519 host_port = strtol(buf, &r, 0);
520 if (r == buf)
521 goto fail;
523 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
524 goto fail;
525 if (buf[0] == '\0') {
526 pstrcpy(buf, sizeof(buf), "10.0.2.15");
528 if (!inet_aton(buf, &guest_addr))
529 goto fail;
531 guest_port = strtol(p, &r, 0);
532 if (r == p)
533 goto fail;
535 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
536 fprintf(stderr, "qemu: could not set up redirection\n");
537 exit(1);
539 return;
540 fail:
541 fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
542 exit(1);
545 #ifndef _WIN32
547 static char smb_dir[1024];
549 static void erase_dir(char *dir_name)
551 DIR *d;
552 struct dirent *de;
553 char filename[1024];
555 /* erase all the files in the directory */
556 if ((d = opendir(dir_name)) != 0) {
557 for(;;) {
558 de = readdir(d);
559 if (!de)
560 break;
561 if (strcmp(de->d_name, ".") != 0 &&
562 strcmp(de->d_name, "..") != 0) {
563 snprintf(filename, sizeof(filename), "%s/%s",
564 smb_dir, de->d_name);
565 if (unlink(filename) != 0) /* is it a directory? */
566 erase_dir(filename);
569 closedir(d);
570 rmdir(dir_name);
574 /* automatic user mode samba server configuration */
575 static void smb_exit(void)
577 erase_dir(smb_dir);
580 /* automatic user mode samba server configuration */
581 void net_slirp_smb(const char *exported_dir)
583 char smb_conf[1024];
584 char smb_cmdline[1024];
585 FILE *f;
587 if (!slirp_inited) {
588 slirp_inited = 1;
589 slirp_init();
592 /* XXX: better tmp dir construction */
593 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid());
594 if (mkdir(smb_dir, 0700) < 0) {
595 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
596 exit(1);
598 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
600 f = fopen(smb_conf, "w");
601 if (!f) {
602 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
603 exit(1);
605 fprintf(f,
606 "[global]\n"
607 "private dir=%s\n"
608 "smb ports=0\n"
609 "socket address=127.0.0.1\n"
610 "pid directory=%s\n"
611 "lock directory=%s\n"
612 "log file=%s/log.smbd\n"
613 "smb passwd file=%s/smbpasswd\n"
614 "security = share\n"
615 "[qemu]\n"
616 "path=%s\n"
617 "read only=no\n"
618 "guest ok=yes\n",
619 smb_dir,
620 smb_dir,
621 smb_dir,
622 smb_dir,
623 smb_dir,
624 exported_dir
626 fclose(f);
627 atexit(smb_exit);
629 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
630 SMBD_COMMAND, smb_conf);
632 slirp_add_exec(0, smb_cmdline, 4, 139);
635 #endif /* !defined(_WIN32) */
636 void do_info_slirp(void)
638 slirp_stats();
641 #endif /* CONFIG_SLIRP */
643 #if !defined(_WIN32)
645 typedef struct TAPState {
646 VLANClientState *vc;
647 int fd;
648 char down_script[1024];
649 } TAPState;
651 #ifdef HAVE_IOVEC
652 static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov,
653 int iovcnt)
655 TAPState *s = opaque;
656 ssize_t len;
658 do {
659 len = writev(s->fd, iov, iovcnt);
660 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
662 return len;
664 #endif
666 static void tap_receive(void *opaque, const uint8_t *buf, int size)
668 TAPState *s = opaque;
669 int ret;
670 for(;;) {
671 ret = write(s->fd, buf, size);
672 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
673 } else {
674 break;
679 static void tap_send(void *opaque)
681 TAPState *s = opaque;
682 uint8_t buf[4096];
683 int size;
685 #ifdef __sun__
686 struct strbuf sbuf;
687 int f = 0;
688 sbuf.maxlen = sizeof(buf);
689 sbuf.buf = buf;
690 size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
691 #else
692 size = read(s->fd, buf, sizeof(buf));
693 #endif
694 if (size > 0) {
695 qemu_send_packet(s->vc, buf, size);
699 /* fd support */
701 static TAPState *net_tap_fd_init(VLANState *vlan,
702 const char *model,
703 const char *name,
704 int fd)
706 TAPState *s;
708 s = qemu_mallocz(sizeof(TAPState));
709 if (!s)
710 return NULL;
711 s->fd = fd;
712 s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive, NULL, s);
713 #ifdef HAVE_IOVEC
714 s->vc->fd_readv = tap_receive_iov;
715 #endif
716 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
717 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
718 return s;
721 #if defined (_BSD) || defined (__FreeBSD_kernel__)
722 static int tap_open(char *ifname, int ifname_size)
724 int fd;
725 char *dev;
726 struct stat s;
728 TFR(fd = open("/dev/tap", O_RDWR));
729 if (fd < 0) {
730 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
731 return -1;
734 fstat(fd, &s);
735 dev = devname(s.st_rdev, S_IFCHR);
736 pstrcpy(ifname, ifname_size, dev);
738 fcntl(fd, F_SETFL, O_NONBLOCK);
739 return fd;
741 #elif defined(__sun__)
742 #define TUNNEWPPA (('T'<<16) | 0x0001)
744 * Allocate TAP device, returns opened fd.
745 * Stores dev name in the first arg(must be large enough).
747 int tap_alloc(char *dev, size_t dev_size)
749 int tap_fd, if_fd, ppa = -1;
750 static int ip_fd = 0;
751 char *ptr;
753 static int arp_fd = 0;
754 int ip_muxid, arp_muxid;
755 struct strioctl strioc_if, strioc_ppa;
756 int link_type = I_PLINK;;
757 struct lifreq ifr;
758 char actual_name[32] = "";
760 memset(&ifr, 0x0, sizeof(ifr));
762 if( *dev ){
763 ptr = dev;
764 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
765 ppa = atoi(ptr);
768 /* Check if IP device was opened */
769 if( ip_fd )
770 close(ip_fd);
772 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
773 if (ip_fd < 0) {
774 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
775 return -1;
778 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
779 if (tap_fd < 0) {
780 syslog(LOG_ERR, "Can't open /dev/tap");
781 return -1;
784 /* Assign a new PPA and get its unit number. */
785 strioc_ppa.ic_cmd = TUNNEWPPA;
786 strioc_ppa.ic_timout = 0;
787 strioc_ppa.ic_len = sizeof(ppa);
788 strioc_ppa.ic_dp = (char *)&ppa;
789 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
790 syslog (LOG_ERR, "Can't assign new interface");
792 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
793 if (if_fd < 0) {
794 syslog(LOG_ERR, "Can't open /dev/tap (2)");
795 return -1;
797 if(ioctl(if_fd, I_PUSH, "ip") < 0){
798 syslog(LOG_ERR, "Can't push IP module");
799 return -1;
802 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
803 syslog(LOG_ERR, "Can't get flags\n");
805 snprintf (actual_name, 32, "tap%d", ppa);
806 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
808 ifr.lifr_ppa = ppa;
809 /* Assign ppa according to the unit number returned by tun device */
811 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
812 syslog (LOG_ERR, "Can't set PPA %d", ppa);
813 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
814 syslog (LOG_ERR, "Can't get flags\n");
815 /* Push arp module to if_fd */
816 if (ioctl (if_fd, I_PUSH, "arp") < 0)
817 syslog (LOG_ERR, "Can't push ARP module (2)");
819 /* Push arp module to ip_fd */
820 if (ioctl (ip_fd, I_POP, NULL) < 0)
821 syslog (LOG_ERR, "I_POP failed\n");
822 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
823 syslog (LOG_ERR, "Can't push ARP module (3)\n");
824 /* Open arp_fd */
825 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
826 if (arp_fd < 0)
827 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
829 /* Set ifname to arp */
830 strioc_if.ic_cmd = SIOCSLIFNAME;
831 strioc_if.ic_timout = 0;
832 strioc_if.ic_len = sizeof(ifr);
833 strioc_if.ic_dp = (char *)&ifr;
834 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
835 syslog (LOG_ERR, "Can't set ifname to arp\n");
838 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
839 syslog(LOG_ERR, "Can't link TAP device to IP");
840 return -1;
843 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
844 syslog (LOG_ERR, "Can't link TAP device to ARP");
846 close (if_fd);
848 memset(&ifr, 0x0, sizeof(ifr));
849 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
850 ifr.lifr_ip_muxid = ip_muxid;
851 ifr.lifr_arp_muxid = arp_muxid;
853 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
855 ioctl (ip_fd, I_PUNLINK , arp_muxid);
856 ioctl (ip_fd, I_PUNLINK, ip_muxid);
857 syslog (LOG_ERR, "Can't set multiplexor id");
860 snprintf(dev, dev_size, "tap%d", ppa);
861 return tap_fd;
864 static int tap_open(char *ifname, int ifname_size)
866 char dev[10]="";
867 int fd;
868 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
869 fprintf(stderr, "Cannot allocate TAP device\n");
870 return -1;
872 pstrcpy(ifname, ifname_size, dev);
873 fcntl(fd, F_SETFL, O_NONBLOCK);
874 return fd;
876 #elif defined (_AIX)
877 static int tap_open(char *ifname, int ifname_size)
879 fprintf (stderr, "no tap on AIX\n");
880 return -1;
882 #else
883 static int tap_open(char *ifname, int ifname_size)
885 struct ifreq ifr;
886 int fd, ret;
888 TFR(fd = open("/dev/net/tun", O_RDWR));
889 if (fd < 0) {
890 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
891 return -1;
893 memset(&ifr, 0, sizeof(ifr));
894 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
895 if (ifname[0] != '\0')
896 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
897 else
898 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
899 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
900 if (ret != 0) {
901 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
902 close(fd);
903 return -1;
905 pstrcpy(ifname, ifname_size, ifr.ifr_name);
906 fcntl(fd, F_SETFL, O_NONBLOCK);
907 return fd;
909 #endif
911 static int launch_script(const char *setup_script, const char *ifname, int fd)
913 int pid, status;
914 char *args[3];
915 char **parg;
917 /* try to launch network script */
918 pid = fork();
919 if (pid >= 0) {
920 if (pid == 0) {
921 int open_max = sysconf (_SC_OPEN_MAX), i;
922 for (i = 0; i < open_max; i++)
923 if (i != STDIN_FILENO &&
924 i != STDOUT_FILENO &&
925 i != STDERR_FILENO &&
926 i != fd)
927 close(i);
929 parg = args;
930 *parg++ = (char *)setup_script;
931 *parg++ = (char *)ifname;
932 *parg++ = NULL;
933 execv(setup_script, args);
934 _exit(1);
936 while (waitpid(pid, &status, 0) != pid);
937 if (!WIFEXITED(status) ||
938 WEXITSTATUS(status) != 0) {
939 fprintf(stderr, "%s: could not launch network script\n",
940 setup_script);
941 return -1;
944 return 0;
947 static int net_tap_init(VLANState *vlan, const char *model,
948 const char *name, const char *ifname1,
949 const char *setup_script, const char *down_script)
951 TAPState *s;
952 int fd;
953 char ifname[128];
955 if (ifname1 != NULL)
956 pstrcpy(ifname, sizeof(ifname), ifname1);
957 else
958 ifname[0] = '\0';
959 TFR(fd = tap_open(ifname, sizeof(ifname)));
960 if (fd < 0)
961 return -1;
963 if (!setup_script || !strcmp(setup_script, "no"))
964 setup_script = "";
965 if (setup_script[0] != '\0') {
966 if (launch_script(setup_script, ifname, fd))
967 return -1;
969 s = net_tap_fd_init(vlan, model, name, fd);
970 if (!s)
971 return -1;
972 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
973 "ifname=%s,script=%s,downscript=%s",
974 ifname, setup_script, down_script);
975 if (down_script && strcmp(down_script, "no"))
976 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
977 return 0;
980 #endif /* !_WIN32 */
982 #if defined(CONFIG_VDE)
983 typedef struct VDEState {
984 VLANClientState *vc;
985 VDECONN *vde;
986 } VDEState;
988 static void vde_to_qemu(void *opaque)
990 VDEState *s = opaque;
991 uint8_t buf[4096];
992 int size;
994 size = vde_recv(s->vde, buf, sizeof(buf), 0);
995 if (size > 0) {
996 qemu_send_packet(s->vc, buf, size);
1000 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
1002 VDEState *s = opaque;
1003 int ret;
1004 for(;;) {
1005 ret = vde_send(s->vde, buf, size, 0);
1006 if (ret < 0 && errno == EINTR) {
1007 } else {
1008 break;
1013 static int net_vde_init(VLANState *vlan, const char *model,
1014 const char *name, const char *sock,
1015 int port, const char *group, int mode)
1017 VDEState *s;
1018 char *init_group = strlen(group) ? (char *)group : NULL;
1019 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1021 struct vde_open_args args = {
1022 .port = port,
1023 .group = init_group,
1024 .mode = mode,
1027 s = qemu_mallocz(sizeof(VDEState));
1028 if (!s)
1029 return -1;
1030 s->vde = vde_open(init_sock, "QEMU", &args);
1031 if (!s->vde){
1032 free(s);
1033 return -1;
1035 s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu, NULL, s);
1036 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1037 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1038 sock, vde_datafd(s->vde));
1039 return 0;
1041 #endif
1043 /* network connection */
1044 typedef struct NetSocketState {
1045 VLANClientState *vc;
1046 int fd;
1047 int state; /* 0 = getting length, 1 = getting data */
1048 int index;
1049 int packet_len;
1050 uint8_t buf[4096];
1051 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1052 } NetSocketState;
1054 typedef struct NetSocketListenState {
1055 VLANState *vlan;
1056 char *model;
1057 char *name;
1058 int fd;
1059 } NetSocketListenState;
1061 /* XXX: we consider we can send the whole packet without blocking */
1062 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
1064 NetSocketState *s = opaque;
1065 uint32_t len;
1066 len = htonl(size);
1068 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1069 send_all(s->fd, buf, size);
1072 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
1074 NetSocketState *s = opaque;
1075 sendto(s->fd, buf, size, 0,
1076 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1079 static void net_socket_send(void *opaque)
1081 NetSocketState *s = opaque;
1082 int l, size, err;
1083 uint8_t buf1[4096];
1084 const uint8_t *buf;
1086 size = recv(s->fd, buf1, sizeof(buf1), 0);
1087 if (size < 0) {
1088 err = socket_error();
1089 if (err != EWOULDBLOCK)
1090 goto eoc;
1091 } else if (size == 0) {
1092 /* end of connection */
1093 eoc:
1094 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1095 closesocket(s->fd);
1096 return;
1098 buf = buf1;
1099 while (size > 0) {
1100 /* reassemble a packet from the network */
1101 switch(s->state) {
1102 case 0:
1103 l = 4 - s->index;
1104 if (l > size)
1105 l = size;
1106 memcpy(s->buf + s->index, buf, l);
1107 buf += l;
1108 size -= l;
1109 s->index += l;
1110 if (s->index == 4) {
1111 /* got length */
1112 s->packet_len = ntohl(*(uint32_t *)s->buf);
1113 s->index = 0;
1114 s->state = 1;
1116 break;
1117 case 1:
1118 l = s->packet_len - s->index;
1119 if (l > size)
1120 l = size;
1121 memcpy(s->buf + s->index, buf, l);
1122 s->index += l;
1123 buf += l;
1124 size -= l;
1125 if (s->index >= s->packet_len) {
1126 qemu_send_packet(s->vc, s->buf, s->packet_len);
1127 s->index = 0;
1128 s->state = 0;
1130 break;
1135 static void net_socket_send_dgram(void *opaque)
1137 NetSocketState *s = opaque;
1138 int size;
1140 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1141 if (size < 0)
1142 return;
1143 if (size == 0) {
1144 /* end of connection */
1145 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1146 return;
1148 qemu_send_packet(s->vc, s->buf, size);
1151 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1153 struct ip_mreq imr;
1154 int fd;
1155 int val, ret;
1156 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1157 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1158 inet_ntoa(mcastaddr->sin_addr),
1159 (int)ntohl(mcastaddr->sin_addr.s_addr));
1160 return -1;
1163 fd = socket(PF_INET, SOCK_DGRAM, 0);
1164 if (fd < 0) {
1165 perror("socket(PF_INET, SOCK_DGRAM)");
1166 return -1;
1169 val = 1;
1170 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1171 (const char *)&val, sizeof(val));
1172 if (ret < 0) {
1173 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1174 goto fail;
1177 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1178 if (ret < 0) {
1179 perror("bind");
1180 goto fail;
1183 /* Add host to multicast group */
1184 imr.imr_multiaddr = mcastaddr->sin_addr;
1185 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1187 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1188 (const char *)&imr, sizeof(struct ip_mreq));
1189 if (ret < 0) {
1190 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1191 goto fail;
1194 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1195 val = 1;
1196 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1197 (const char *)&val, sizeof(val));
1198 if (ret < 0) {
1199 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1200 goto fail;
1203 socket_set_nonblock(fd);
1204 return fd;
1205 fail:
1206 if (fd >= 0)
1207 closesocket(fd);
1208 return -1;
1211 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1212 const char *model,
1213 const char *name,
1214 int fd, int is_connected)
1216 struct sockaddr_in saddr;
1217 int newfd;
1218 socklen_t saddr_len;
1219 NetSocketState *s;
1221 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1222 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1223 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1226 if (is_connected) {
1227 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1228 /* must be bound */
1229 if (saddr.sin_addr.s_addr==0) {
1230 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1231 fd);
1232 return NULL;
1234 /* clone dgram socket */
1235 newfd = net_socket_mcast_create(&saddr);
1236 if (newfd < 0) {
1237 /* error already reported by net_socket_mcast_create() */
1238 close(fd);
1239 return NULL;
1241 /* clone newfd to fd, close newfd */
1242 dup2(newfd, fd);
1243 close(newfd);
1245 } else {
1246 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1247 fd, strerror(errno));
1248 return NULL;
1252 s = qemu_mallocz(sizeof(NetSocketState));
1253 if (!s)
1254 return NULL;
1255 s->fd = fd;
1257 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram, NULL, s);
1258 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1260 /* mcast: save bound address as dst */
1261 if (is_connected) s->dgram_dst=saddr;
1263 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1264 "socket: fd=%d (%s mcast=%s:%d)",
1265 fd, is_connected? "cloned" : "",
1266 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1267 return s;
1270 static void net_socket_connect(void *opaque)
1272 NetSocketState *s = opaque;
1273 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1276 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1277 const char *model,
1278 const char *name,
1279 int fd, int is_connected)
1281 NetSocketState *s;
1282 s = qemu_mallocz(sizeof(NetSocketState));
1283 if (!s)
1284 return NULL;
1285 s->fd = fd;
1286 s->vc = qemu_new_vlan_client(vlan, model, name,
1287 net_socket_receive, NULL, s);
1288 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1289 "socket: fd=%d", fd);
1290 if (is_connected) {
1291 net_socket_connect(s);
1292 } else {
1293 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1295 return s;
1298 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1299 const char *model, const char *name,
1300 int fd, int is_connected)
1302 int so_type=-1, optlen=sizeof(so_type);
1304 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1305 (socklen_t *)&optlen)< 0) {
1306 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1307 return NULL;
1309 switch(so_type) {
1310 case SOCK_DGRAM:
1311 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1312 case SOCK_STREAM:
1313 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1314 default:
1315 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1316 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1317 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1319 return NULL;
1322 static void net_socket_accept(void *opaque)
1324 NetSocketListenState *s = opaque;
1325 NetSocketState *s1;
1326 struct sockaddr_in saddr;
1327 socklen_t len;
1328 int fd;
1330 for(;;) {
1331 len = sizeof(saddr);
1332 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1333 if (fd < 0 && errno != EINTR) {
1334 return;
1335 } else if (fd >= 0) {
1336 break;
1339 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1340 if (!s1) {
1341 closesocket(fd);
1342 } else {
1343 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1344 "socket: connection from %s:%d",
1345 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1349 static int net_socket_listen_init(VLANState *vlan,
1350 const char *model,
1351 const char *name,
1352 const char *host_str)
1354 NetSocketListenState *s;
1355 int fd, val, ret;
1356 struct sockaddr_in saddr;
1358 if (parse_host_port(&saddr, host_str) < 0)
1359 return -1;
1361 s = qemu_mallocz(sizeof(NetSocketListenState));
1362 if (!s)
1363 return -1;
1365 fd = socket(PF_INET, SOCK_STREAM, 0);
1366 if (fd < 0) {
1367 perror("socket");
1368 return -1;
1370 socket_set_nonblock(fd);
1372 /* allow fast reuse */
1373 val = 1;
1374 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1376 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1377 if (ret < 0) {
1378 perror("bind");
1379 return -1;
1381 ret = listen(fd, 0);
1382 if (ret < 0) {
1383 perror("listen");
1384 return -1;
1386 s->vlan = vlan;
1387 s->model = strdup(model);
1388 s->name = strdup(name);
1389 s->fd = fd;
1390 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1391 return 0;
1394 static int net_socket_connect_init(VLANState *vlan,
1395 const char *model,
1396 const char *name,
1397 const char *host_str)
1399 NetSocketState *s;
1400 int fd, connected, ret, err;
1401 struct sockaddr_in saddr;
1403 if (parse_host_port(&saddr, host_str) < 0)
1404 return -1;
1406 fd = socket(PF_INET, SOCK_STREAM, 0);
1407 if (fd < 0) {
1408 perror("socket");
1409 return -1;
1411 socket_set_nonblock(fd);
1413 connected = 0;
1414 for(;;) {
1415 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1416 if (ret < 0) {
1417 err = socket_error();
1418 if (err == EINTR || err == EWOULDBLOCK) {
1419 } else if (err == EINPROGRESS) {
1420 break;
1421 #ifdef _WIN32
1422 } else if (err == WSAEALREADY) {
1423 break;
1424 #endif
1425 } else {
1426 perror("connect");
1427 closesocket(fd);
1428 return -1;
1430 } else {
1431 connected = 1;
1432 break;
1435 s = net_socket_fd_init(vlan, model, name, fd, connected);
1436 if (!s)
1437 return -1;
1438 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1439 "socket: connect to %s:%d",
1440 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1441 return 0;
1444 static int net_socket_mcast_init(VLANState *vlan,
1445 const char *model,
1446 const char *name,
1447 const char *host_str)
1449 NetSocketState *s;
1450 int fd;
1451 struct sockaddr_in saddr;
1453 if (parse_host_port(&saddr, host_str) < 0)
1454 return -1;
1457 fd = net_socket_mcast_create(&saddr);
1458 if (fd < 0)
1459 return -1;
1461 s = net_socket_fd_init(vlan, model, name, fd, 0);
1462 if (!s)
1463 return -1;
1465 s->dgram_dst = saddr;
1467 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1468 "socket: mcast=%s:%d",
1469 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1470 return 0;
1474 /* find or alloc a new VLAN */
1475 VLANState *qemu_find_vlan(int id)
1477 VLANState **pvlan, *vlan;
1478 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1479 if (vlan->id == id)
1480 return vlan;
1482 vlan = qemu_mallocz(sizeof(VLANState));
1483 if (!vlan)
1484 return NULL;
1485 vlan->id = id;
1486 vlan->next = NULL;
1487 pvlan = &first_vlan;
1488 while (*pvlan != NULL)
1489 pvlan = &(*pvlan)->next;
1490 *pvlan = vlan;
1491 return vlan;
1494 int net_client_init(const char *device, const char *p)
1496 char buf[1024];
1497 int vlan_id, ret;
1498 VLANState *vlan;
1499 char *name = NULL;
1501 vlan_id = 0;
1502 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1503 vlan_id = strtol(buf, NULL, 0);
1505 vlan = qemu_find_vlan(vlan_id);
1506 if (!vlan) {
1507 fprintf(stderr, "Could not create vlan %d\n", vlan_id);
1508 return -1;
1510 if (get_param_value(buf, sizeof(buf), "name", p)) {
1511 name = strdup(buf);
1513 if (!strcmp(device, "nic")) {
1514 NICInfo *nd;
1515 uint8_t *macaddr;
1517 if (nb_nics >= MAX_NICS) {
1518 fprintf(stderr, "Too Many NICs\n");
1519 return -1;
1521 nd = &nd_table[nb_nics];
1522 macaddr = nd->macaddr;
1523 macaddr[0] = 0x52;
1524 macaddr[1] = 0x54;
1525 macaddr[2] = 0x00;
1526 macaddr[3] = 0x12;
1527 macaddr[4] = 0x34;
1528 macaddr[5] = 0x56 + nb_nics;
1530 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
1531 if (parse_macaddr(macaddr, buf) < 0) {
1532 fprintf(stderr, "invalid syntax for ethernet address\n");
1533 return -1;
1536 if (get_param_value(buf, sizeof(buf), "model", p)) {
1537 nd->model = strdup(buf);
1539 nd->vlan = vlan;
1540 nd->name = name;
1541 name = NULL;
1542 nb_nics++;
1543 vlan->nb_guest_devs++;
1544 ret = 0;
1545 } else
1546 if (!strcmp(device, "none")) {
1547 /* does nothing. It is needed to signal that no network cards
1548 are wanted */
1549 ret = 0;
1550 } else
1551 #ifdef CONFIG_SLIRP
1552 if (!strcmp(device, "user")) {
1553 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
1554 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
1556 vlan->nb_host_devs++;
1557 ret = net_slirp_init(vlan, device, name);
1558 } else
1559 #endif
1560 #ifdef _WIN32
1561 if (!strcmp(device, "tap")) {
1562 char ifname[64];
1563 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1564 fprintf(stderr, "tap: no interface name\n");
1565 return -1;
1567 vlan->nb_host_devs++;
1568 ret = tap_win32_init(vlan, device, name, ifname);
1569 } else
1570 #elif defined (_AIX)
1571 #else
1572 if (!strcmp(device, "tap")) {
1573 char ifname[64];
1574 char setup_script[1024], down_script[1024];
1575 int fd;
1576 vlan->nb_host_devs++;
1577 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1578 fd = strtol(buf, NULL, 0);
1579 fcntl(fd, F_SETFL, O_NONBLOCK);
1580 ret = -1;
1581 if (net_tap_fd_init(vlan, device, name, fd))
1582 ret = 0;
1583 } else {
1584 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1585 ifname[0] = '\0';
1587 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
1588 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
1590 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
1591 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
1593 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
1595 } else
1596 #endif
1597 if (!strcmp(device, "socket")) {
1598 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1599 int fd;
1600 fd = strtol(buf, NULL, 0);
1601 ret = -1;
1602 if (net_socket_fd_init(vlan, device, name, fd, 1))
1603 ret = 0;
1604 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
1605 ret = net_socket_listen_init(vlan, device, name, buf);
1606 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
1607 ret = net_socket_connect_init(vlan, device, name, buf);
1608 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
1609 ret = net_socket_mcast_init(vlan, device, name, buf);
1610 } else {
1611 fprintf(stderr, "Unknown socket options: %s\n", p);
1612 return -1;
1614 vlan->nb_host_devs++;
1615 } else
1616 #ifdef CONFIG_VDE
1617 if (!strcmp(device, "vde")) {
1618 char vde_sock[1024], vde_group[512];
1619 int vde_port, vde_mode;
1620 vlan->nb_host_devs++;
1621 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
1622 vde_sock[0] = '\0';
1624 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
1625 vde_port = strtol(buf, NULL, 10);
1626 } else {
1627 vde_port = 0;
1629 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
1630 vde_group[0] = '\0';
1632 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
1633 vde_mode = strtol(buf, NULL, 8);
1634 } else {
1635 vde_mode = 0700;
1637 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
1638 } else
1639 #endif
1641 fprintf(stderr, "Unknown network device: %s\n", device);
1642 if (name)
1643 free(name);
1644 return -1;
1646 if (ret < 0) {
1647 fprintf(stderr, "Could not initialize device '%s'\n", device);
1649 if (name)
1650 free(name);
1651 return ret;
1654 int net_client_parse(const char *str)
1656 const char *p;
1657 char *q;
1658 char device[64];
1660 p = str;
1661 q = device;
1662 while (*p != '\0' && *p != ',') {
1663 if ((q - device) < sizeof(device) - 1)
1664 *q++ = *p;
1665 p++;
1667 *q = '\0';
1668 if (*p == ',')
1669 p++;
1671 return net_client_init(device, p);
1674 void do_info_network(void)
1676 VLANState *vlan;
1677 VLANClientState *vc;
1679 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1680 term_printf("VLAN %d devices:\n", vlan->id);
1681 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
1682 term_printf(" %s: %s\n", vc->name, vc->info_str);
1686 void net_cleanup(void)
1688 VLANState *vlan;
1690 #if !defined(_WIN32)
1691 /* close network clients */
1692 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1693 VLANClientState *vc;
1695 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
1696 if (vc->fd_read == tap_receive) {
1697 char ifname[64];
1698 TAPState *s = vc->opaque;
1700 if (strcmp(vc->model, "tap") == 0 &&
1701 sscanf(vc->info_str, "ifname=%63s ", ifname) == 1 &&
1702 s->down_script[0])
1703 launch_script(s->down_script, ifname, s->fd);
1705 #if defined(CONFIG_VDE)
1706 if (vc->fd_read == vde_from_qemu) {
1707 VDEState *s = vc->opaque;
1708 vde_close(s->vde);
1710 #endif
1713 #endif
1716 void net_client_check(void)
1718 VLANState *vlan;
1720 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1721 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
1722 continue;
1723 if (vlan->nb_guest_devs == 0)
1724 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
1725 if (vlan->nb_host_devs == 0)
1726 fprintf(stderr,
1727 "Warning: vlan %d is not connected to host network\n",
1728 vlan->id);