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
32 /* Needed early for HOST_BSD etc. */
33 #include "config-host.h"
36 #include <sys/times.h>
40 #include <sys/ioctl.h>
41 #include <sys/resource.h>
42 #include <sys/socket.h>
43 #include <netinet/in.h>
46 #include <net/if_tap.h>
49 #include <linux/if_tun.h>
51 #include <arpa/inet.h>
54 #include <sys/select.h>
57 #if defined(__FreeBSD__) || defined(__DragonFly__)
62 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
63 #include <freebsd/stdlib.h>
68 #include <linux/rtc.h>
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> */
75 #include <linux/ppdev.h>
76 #include <linux/parport.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>
96 #if defined(__OpenBSD__)
100 #if defined(CONFIG_VDE)
101 #include <libvdeplug.h>
107 #include <sys/timeb.h>
108 #include <mmsystem.h>
109 #define getopt_long_only getopt_long
110 #define memalign(align, size) malloc(size)
113 #include "qemu-common.h"
117 #include "qemu-timer.h"
118 #include "qemu-char.h"
119 #include "audio/audio.h"
120 #include "qemu_socket.h"
121 #include "qemu-log.h"
123 #if defined(CONFIG_SLIRP)
124 #include "libslirp.h"
128 static VLANState *first_vlan;
130 /***********************************************************/
131 /* network device redirectors */
133 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
134 static void hex_dump(FILE *f, const uint8_t *buf, int size)
138 for(i=0;i<size;i+=16) {
142 fprintf(f, "%08x ", i);
145 fprintf(f, " %02x", buf[i+j]);
152 if (c < ' ' || c > '~')
161 static int parse_macaddr(uint8_t *macaddr, const char *p)
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;
176 for(i = 0; i < 6; i++) {
177 macaddr[i] = strtol(p, (char **)&p, 16);
182 if (*p != ':' && *p != '-')
193 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
204 if (len > buf_size - 1)
213 int parse_host_src_port(struct sockaddr_in *haddr,
214 struct sockaddr_in *saddr,
215 const char *input_str)
217 char *str = strdup(input_str);
218 char *host_str = str;
220 const char *src_str2;
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".
228 if ((ptr = strchr(str,',')))
231 if ((src_str = strchr(input_str,'@'))) {
236 if (parse_host_port(haddr, host_str) < 0)
240 if (!src_str || *src_str == '\0')
243 if (parse_host_port(saddr, src_str2) < 0)
254 int parse_host_port(struct sockaddr_in *saddr, const char *str)
262 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
264 saddr->sin_family = AF_INET;
265 if (buf[0] == '\0') {
266 saddr->sin_addr.s_addr = 0;
268 if (qemu_isdigit(buf[0])) {
269 if (!inet_aton(buf, &saddr->sin_addr))
272 if ((he = gethostbyname(buf)) == NULL)
274 saddr->sin_addr = *(struct in_addr *)he->h_addr;
277 port = strtol(p, (char **)&r, 0);
280 saddr->sin_port = htons(port);
284 #if !defined(_WIN32) && 0
285 static int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
290 len = MIN(108, strlen(str));
291 p = strchr(str, ',');
293 len = MIN(len, p - str);
295 memset(uaddr, 0, sizeof(*uaddr));
297 uaddr->sun_family = AF_UNIX;
298 memcpy(uaddr->sun_path, str, len);
304 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6])
306 snprintf(vc->info_str, sizeof(vc->info_str),
307 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
309 macaddr[0], macaddr[1], macaddr[2],
310 macaddr[3], macaddr[4], macaddr[5]);
313 static char *assign_name(VLANClientState *vc1, const char *model)
319 for (vlan = first_vlan; vlan; vlan = vlan->next) {
322 for (vc = vlan->first_client; vc; vc = vc->next)
323 if (vc != vc1 && strcmp(vc->model, model) == 0)
327 snprintf(buf, sizeof(buf), "%s.%d", model, id);
332 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
335 IOReadHandler *fd_read,
336 IOCanRWHandler *fd_can_read,
340 VLANClientState *vc, **pvc;
341 vc = qemu_mallocz(sizeof(VLANClientState));
342 vc->model = strdup(model);
344 vc->name = strdup(name);
346 vc->name = assign_name(vc, model);
347 vc->fd_read = fd_read;
348 vc->fd_can_read = fd_can_read;
349 vc->cleanup = cleanup;
354 pvc = &vlan->first_client;
361 void qemu_del_vlan_client(VLANClientState *vc)
363 VLANClientState **pvc = &vc->vlan->first_client;
379 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
381 VLANClientState **pvc = &vlan->first_client;
384 if ((*pvc)->opaque == opaque)
392 int qemu_can_send_packet(VLANClientState *vc1)
394 VLANState *vlan = vc1->vlan;
397 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
399 if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
407 qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size)
411 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
412 if (vc != sender && !vc->link_down) {
413 vc->fd_read(vc->opaque, buf, size);
418 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
420 VLANState *vlan = vc->vlan;
427 printf("vlan %d send:\n", vlan->id);
428 hex_dump(stdout, buf, size);
430 if (vlan->delivering) {
431 packet = qemu_malloc(sizeof(VLANPacket) + size);
432 packet->next = vlan->send_queue;
435 memcpy(packet->data, buf, size);
436 vlan->send_queue = packet;
438 vlan->delivering = 1;
439 qemu_deliver_packet(vc, buf, size);
440 while ((packet = vlan->send_queue) != NULL) {
441 qemu_deliver_packet(packet->sender, packet->data, packet->size);
442 vlan->send_queue = packet->next;
445 vlan->delivering = 0;
449 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
452 uint8_t buffer[4096];
456 for (i = 0; i < iovcnt; i++) {
459 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
460 memcpy(buffer + offset, iov[i].iov_base, len);
464 vc->fd_read(vc->opaque, buffer, offset);
469 static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
474 for (i = 0; i < iovcnt; i++)
475 offset += iov[i].iov_len;
479 ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov,
482 VLANState *vlan = vc1->vlan;
487 return calc_iov_length(iov, iovcnt);
489 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
496 len = calc_iov_length(iov, iovcnt);
498 len = vc->fd_readv(vc->opaque, iov, iovcnt);
499 else if (vc->fd_read)
500 len = vc_sendv_compat(vc, iov, iovcnt);
502 max_len = MAX(max_len, len);
508 #if defined(CONFIG_SLIRP)
510 /* slirp network adapter */
512 static int slirp_inited;
513 static int slirp_restrict;
514 static char *slirp_ip;
515 static VLANClientState *slirp_vc;
517 int slirp_can_output(void)
519 return !slirp_vc || qemu_can_send_packet(slirp_vc);
522 void slirp_output(const uint8_t *pkt, int pkt_len)
525 printf("slirp output:\n");
526 hex_dump(stdout, pkt, pkt_len);
530 qemu_send_packet(slirp_vc, pkt, pkt_len);
533 int slirp_is_inited(void)
538 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
541 printf("slirp input:\n");
542 hex_dump(stdout, buf, size);
544 slirp_input(buf, size);
547 static int net_slirp_init(VLANState *vlan, const char *model, const char *name)
551 slirp_init(slirp_restrict, slirp_ip);
553 slirp_vc = qemu_new_vlan_client(vlan, model, name,
554 slirp_receive, NULL, NULL, NULL);
555 slirp_vc->info_str[0] = '\0';
559 void net_slirp_redir(Monitor *mon, const char *redir_str)
563 const char *p, *errmsg;
564 struct in_addr guest_addr;
565 int host_port, guest_port;
569 slirp_init(slirp_restrict, slirp_ip);
573 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
575 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
577 } else if (!strcmp(buf, "udp")) {
583 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
585 host_port = strtol(buf, &r, 0);
589 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
591 if (buf[0] == '\0') {
592 pstrcpy(buf, sizeof(buf), "10.0.2.15");
594 if (!inet_aton(buf, &guest_addr))
597 guest_port = strtol(p, &r, 0);
601 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
602 errmsg = "could not set up redirection\n";
608 errmsg = "invalid redirection format\n";
611 monitor_printf(mon, errmsg);
613 fprintf(stderr, "qemu: %s", errmsg);
620 static char smb_dir[1024];
622 static void erase_dir(char *dir_name)
628 /* erase all the files in the directory */
629 if ((d = opendir(dir_name)) != NULL) {
634 if (strcmp(de->d_name, ".") != 0 &&
635 strcmp(de->d_name, "..") != 0) {
636 snprintf(filename, sizeof(filename), "%s/%s",
637 smb_dir, de->d_name);
638 if (unlink(filename) != 0) /* is it a directory? */
647 /* automatic user mode samba server configuration */
648 static void smb_exit(void)
653 /* automatic user mode samba server configuration */
654 void net_slirp_smb(const char *exported_dir)
657 char smb_cmdline[1024];
662 slirp_init(slirp_restrict, slirp_ip);
665 /* XXX: better tmp dir construction */
666 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
667 if (mkdir(smb_dir, 0700) < 0) {
668 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
671 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
673 f = fopen(smb_conf, "w");
675 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
682 "socket address=127.0.0.1\n"
684 "lock directory=%s\n"
685 "log file=%s/log.smbd\n"
686 "smb passwd file=%s/smbpasswd\n"
702 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
703 SMBD_COMMAND, smb_conf);
705 slirp_add_exec(0, smb_cmdline, 4, 139);
708 #endif /* !defined(_WIN32) */
709 void do_info_slirp(Monitor *mon)
719 static int vmchannel_can_read(void *opaque)
721 struct VMChannel *vmc = (struct VMChannel*)opaque;
722 return slirp_socket_can_recv(4, vmc->port);
725 static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
727 struct VMChannel *vmc = (struct VMChannel*)opaque;
728 slirp_socket_recv(4, vmc->port, buf, size);
731 #endif /* CONFIG_SLIRP */
735 typedef struct TAPState {
738 char down_script[1024];
739 char down_script_arg[128];
742 static int launch_script(const char *setup_script, const char *ifname, int fd);
744 static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov,
747 TAPState *s = opaque;
751 len = writev(s->fd, iov, iovcnt);
752 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
757 static void tap_receive(void *opaque, const uint8_t *buf, int size)
759 TAPState *s = opaque;
762 ret = write(s->fd, buf, size);
763 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
770 static void tap_send(void *opaque)
772 TAPState *s = opaque;
779 sbuf.maxlen = sizeof(buf);
780 sbuf.buf = (char *)buf;
781 size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
783 size = read(s->fd, buf, sizeof(buf));
786 qemu_send_packet(s->vc, buf, size);
790 static void tap_cleanup(VLANClientState *vc)
792 TAPState *s = vc->opaque;
794 if (s->down_script[0])
795 launch_script(s->down_script, s->down_script_arg, s->fd);
797 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
804 static TAPState *net_tap_fd_init(VLANState *vlan,
811 s = qemu_mallocz(sizeof(TAPState));
813 s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive,
814 NULL, tap_cleanup, s);
815 s->vc->fd_readv = tap_receive_iov;
816 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
817 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
821 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
822 static int tap_open(char *ifname, int ifname_size)
828 TFR(fd = open("/dev/tap", O_RDWR));
830 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
835 dev = devname(s.st_rdev, S_IFCHR);
836 pstrcpy(ifname, ifname_size, dev);
838 fcntl(fd, F_SETFL, O_NONBLOCK);
841 #elif defined(__sun__)
842 #define TUNNEWPPA (('T'<<16) | 0x0001)
844 * Allocate TAP device, returns opened fd.
845 * Stores dev name in the first arg(must be large enough).
847 static int tap_alloc(char *dev, size_t dev_size)
849 int tap_fd, if_fd, ppa = -1;
850 static int ip_fd = 0;
853 static int arp_fd = 0;
854 int ip_muxid, arp_muxid;
855 struct strioctl strioc_if, strioc_ppa;
856 int link_type = I_PLINK;;
858 char actual_name[32] = "";
860 memset(&ifr, 0x0, sizeof(ifr));
864 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
868 /* Check if IP device was opened */
872 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
874 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
878 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
880 syslog(LOG_ERR, "Can't open /dev/tap");
884 /* Assign a new PPA and get its unit number. */
885 strioc_ppa.ic_cmd = TUNNEWPPA;
886 strioc_ppa.ic_timout = 0;
887 strioc_ppa.ic_len = sizeof(ppa);
888 strioc_ppa.ic_dp = (char *)&ppa;
889 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
890 syslog (LOG_ERR, "Can't assign new interface");
892 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
894 syslog(LOG_ERR, "Can't open /dev/tap (2)");
897 if(ioctl(if_fd, I_PUSH, "ip") < 0){
898 syslog(LOG_ERR, "Can't push IP module");
902 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
903 syslog(LOG_ERR, "Can't get flags\n");
905 snprintf (actual_name, 32, "tap%d", ppa);
906 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
909 /* Assign ppa according to the unit number returned by tun device */
911 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
912 syslog (LOG_ERR, "Can't set PPA %d", ppa);
913 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
914 syslog (LOG_ERR, "Can't get flags\n");
915 /* Push arp module to if_fd */
916 if (ioctl (if_fd, I_PUSH, "arp") < 0)
917 syslog (LOG_ERR, "Can't push ARP module (2)");
919 /* Push arp module to ip_fd */
920 if (ioctl (ip_fd, I_POP, NULL) < 0)
921 syslog (LOG_ERR, "I_POP failed\n");
922 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
923 syslog (LOG_ERR, "Can't push ARP module (3)\n");
925 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
927 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
929 /* Set ifname to arp */
930 strioc_if.ic_cmd = SIOCSLIFNAME;
931 strioc_if.ic_timout = 0;
932 strioc_if.ic_len = sizeof(ifr);
933 strioc_if.ic_dp = (char *)𝔦
934 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
935 syslog (LOG_ERR, "Can't set ifname to arp\n");
938 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
939 syslog(LOG_ERR, "Can't link TAP device to IP");
943 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
944 syslog (LOG_ERR, "Can't link TAP device to ARP");
948 memset(&ifr, 0x0, sizeof(ifr));
949 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
950 ifr.lifr_ip_muxid = ip_muxid;
951 ifr.lifr_arp_muxid = arp_muxid;
953 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
955 ioctl (ip_fd, I_PUNLINK , arp_muxid);
956 ioctl (ip_fd, I_PUNLINK, ip_muxid);
957 syslog (LOG_ERR, "Can't set multiplexor id");
960 snprintf(dev, dev_size, "tap%d", ppa);
964 static int tap_open(char *ifname, int ifname_size)
968 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
969 fprintf(stderr, "Cannot allocate TAP device\n");
972 pstrcpy(ifname, ifname_size, dev);
973 fcntl(fd, F_SETFL, O_NONBLOCK);
977 static int tap_open(char *ifname, int ifname_size)
979 fprintf (stderr, "no tap on AIX\n");
983 static int tap_open(char *ifname, int ifname_size)
988 TFR(fd = open("/dev/net/tun", O_RDWR));
990 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
993 memset(&ifr, 0, sizeof(ifr));
994 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
995 if (ifname[0] != '\0')
996 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
998 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
999 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1001 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1005 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1006 fcntl(fd, F_SETFL, O_NONBLOCK);
1011 static int launch_script(const char *setup_script, const char *ifname, int fd)
1017 /* try to launch network script */
1021 int open_max = sysconf (_SC_OPEN_MAX), i;
1022 for (i = 0; i < open_max; i++)
1023 if (i != STDIN_FILENO &&
1024 i != STDOUT_FILENO &&
1025 i != STDERR_FILENO &&
1030 *parg++ = (char *)setup_script;
1031 *parg++ = (char *)ifname;
1033 execv(setup_script, args);
1036 while (waitpid(pid, &status, 0) != pid);
1037 if (!WIFEXITED(status) ||
1038 WEXITSTATUS(status) != 0) {
1039 fprintf(stderr, "%s: could not launch network script\n",
1047 static int net_tap_init(VLANState *vlan, const char *model,
1048 const char *name, const char *ifname1,
1049 const char *setup_script, const char *down_script)
1055 if (ifname1 != NULL)
1056 pstrcpy(ifname, sizeof(ifname), ifname1);
1059 TFR(fd = tap_open(ifname, sizeof(ifname)));
1063 if (!setup_script || !strcmp(setup_script, "no"))
1065 if (setup_script[0] != '\0') {
1066 if (launch_script(setup_script, ifname, fd))
1069 s = net_tap_fd_init(vlan, model, name, fd);
1070 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1071 "ifname=%s,script=%s,downscript=%s",
1072 ifname, setup_script, down_script);
1073 if (down_script && strcmp(down_script, "no")) {
1074 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1075 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1080 #endif /* !_WIN32 */
1082 #if defined(CONFIG_VDE)
1083 typedef struct VDEState {
1084 VLANClientState *vc;
1088 static void vde_to_qemu(void *opaque)
1090 VDEState *s = opaque;
1094 size = vde_recv(s->vde, buf, sizeof(buf), 0);
1096 qemu_send_packet(s->vc, buf, size);
1100 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
1102 VDEState *s = opaque;
1105 ret = vde_send(s->vde, buf, size, 0);
1106 if (ret < 0 && errno == EINTR) {
1113 static void vde_cleanup(VLANClientState *vc)
1115 VDEState *s = vc->opaque;
1116 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1121 static int net_vde_init(VLANState *vlan, const char *model,
1122 const char *name, const char *sock,
1123 int port, const char *group, int mode)
1126 char *init_group = strlen(group) ? (char *)group : NULL;
1127 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1129 struct vde_open_args args = {
1131 .group = init_group,
1135 s = qemu_mallocz(sizeof(VDEState));
1136 s->vde = vde_open(init_sock, "QEMU", &args);
1141 s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu,
1142 NULL, vde_cleanup, s);
1143 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1144 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1145 sock, vde_datafd(s->vde));
1150 /* network connection */
1151 typedef struct NetSocketState {
1152 VLANClientState *vc;
1154 int state; /* 0 = getting length, 1 = getting data */
1156 unsigned int packet_len;
1158 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1161 typedef struct NetSocketListenState {
1166 } NetSocketListenState;
1168 /* XXX: we consider we can send the whole packet without blocking */
1169 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
1171 NetSocketState *s = opaque;
1175 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1176 send_all(s->fd, buf, size);
1179 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
1181 NetSocketState *s = opaque;
1182 sendto(s->fd, buf, size, 0,
1183 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1186 static void net_socket_send(void *opaque)
1188 NetSocketState *s = opaque;
1194 size = recv(s->fd, buf1, sizeof(buf1), 0);
1196 err = socket_error();
1197 if (err != EWOULDBLOCK)
1199 } else if (size == 0) {
1200 /* end of connection */
1202 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1208 /* reassemble a packet from the network */
1214 memcpy(s->buf + s->index, buf, l);
1218 if (s->index == 4) {
1220 s->packet_len = ntohl(*(uint32_t *)s->buf);
1226 l = s->packet_len - s->index;
1229 if (s->index + l <= sizeof(s->buf)) {
1230 memcpy(s->buf + s->index, buf, l);
1232 fprintf(stderr, "serious error: oversized packet received,"
1233 "connection terminated.\n");
1241 if (s->index >= s->packet_len) {
1242 qemu_send_packet(s->vc, s->buf, s->packet_len);
1251 static void net_socket_send_dgram(void *opaque)
1253 NetSocketState *s = opaque;
1256 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1260 /* end of connection */
1261 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1264 qemu_send_packet(s->vc, s->buf, size);
1267 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1272 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1273 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1274 inet_ntoa(mcastaddr->sin_addr),
1275 (int)ntohl(mcastaddr->sin_addr.s_addr));
1279 fd = socket(PF_INET, SOCK_DGRAM, 0);
1281 perror("socket(PF_INET, SOCK_DGRAM)");
1286 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1287 (const char *)&val, sizeof(val));
1289 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1293 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1299 /* Add host to multicast group */
1300 imr.imr_multiaddr = mcastaddr->sin_addr;
1301 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1303 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1304 (const char *)&imr, sizeof(struct ip_mreq));
1306 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1310 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1312 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1313 (const char *)&val, sizeof(val));
1315 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1319 socket_set_nonblock(fd);
1327 static void net_socket_cleanup(VLANClientState *vc)
1329 NetSocketState *s = vc->opaque;
1330 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1335 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1338 int fd, int is_connected)
1340 struct sockaddr_in saddr;
1342 socklen_t saddr_len;
1345 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1346 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1347 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1351 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1353 if (saddr.sin_addr.s_addr==0) {
1354 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1358 /* clone dgram socket */
1359 newfd = net_socket_mcast_create(&saddr);
1361 /* error already reported by net_socket_mcast_create() */
1365 /* clone newfd to fd, close newfd */
1370 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1371 fd, strerror(errno));
1376 s = qemu_mallocz(sizeof(NetSocketState));
1379 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram,
1380 NULL, net_socket_cleanup, s);
1381 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1383 /* mcast: save bound address as dst */
1384 if (is_connected) s->dgram_dst=saddr;
1386 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1387 "socket: fd=%d (%s mcast=%s:%d)",
1388 fd, is_connected? "cloned" : "",
1389 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1393 static void net_socket_connect(void *opaque)
1395 NetSocketState *s = opaque;
1396 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1399 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1402 int fd, int is_connected)
1405 s = qemu_mallocz(sizeof(NetSocketState));
1407 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive,
1408 NULL, net_socket_cleanup, s);
1409 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1410 "socket: fd=%d", fd);
1412 net_socket_connect(s);
1414 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1419 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1420 const char *model, const char *name,
1421 int fd, int is_connected)
1423 int so_type=-1, optlen=sizeof(so_type);
1425 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1426 (socklen_t *)&optlen)< 0) {
1427 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1432 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1434 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1436 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1437 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1438 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1443 static void net_socket_accept(void *opaque)
1445 NetSocketListenState *s = opaque;
1447 struct sockaddr_in saddr;
1452 len = sizeof(saddr);
1453 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1454 if (fd < 0 && errno != EINTR) {
1456 } else if (fd >= 0) {
1460 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1464 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1465 "socket: connection from %s:%d",
1466 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1470 static int net_socket_listen_init(VLANState *vlan,
1473 const char *host_str)
1475 NetSocketListenState *s;
1477 struct sockaddr_in saddr;
1479 if (parse_host_port(&saddr, host_str) < 0)
1482 s = qemu_mallocz(sizeof(NetSocketListenState));
1484 fd = socket(PF_INET, SOCK_STREAM, 0);
1489 socket_set_nonblock(fd);
1491 /* allow fast reuse */
1493 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1495 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1500 ret = listen(fd, 0);
1506 s->model = strdup(model);
1507 s->name = name ? strdup(name) : NULL;
1509 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1513 static int net_socket_connect_init(VLANState *vlan,
1516 const char *host_str)
1519 int fd, connected, ret, err;
1520 struct sockaddr_in saddr;
1522 if (parse_host_port(&saddr, host_str) < 0)
1525 fd = socket(PF_INET, SOCK_STREAM, 0);
1530 socket_set_nonblock(fd);
1534 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1536 err = socket_error();
1537 if (err == EINTR || err == EWOULDBLOCK) {
1538 } else if (err == EINPROGRESS) {
1541 } else if (err == WSAEALREADY) {
1554 s = net_socket_fd_init(vlan, model, name, fd, connected);
1557 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1558 "socket: connect to %s:%d",
1559 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1563 static int net_socket_mcast_init(VLANState *vlan,
1566 const char *host_str)
1570 struct sockaddr_in saddr;
1572 if (parse_host_port(&saddr, host_str) < 0)
1576 fd = net_socket_mcast_create(&saddr);
1580 s = net_socket_fd_init(vlan, model, name, fd, 0);
1584 s->dgram_dst = saddr;
1586 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1587 "socket: mcast=%s:%d",
1588 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1593 typedef struct DumpState {
1594 VLANClientState *pcap_vc;
1599 #define PCAP_MAGIC 0xa1b2c3d4
1601 struct pcap_file_hdr {
1603 uint16_t version_major;
1604 uint16_t version_minor;
1611 struct pcap_sf_pkthdr {
1620 static void dump_receive(void *opaque, const uint8_t *buf, int size)
1622 DumpState *s = opaque;
1623 struct pcap_sf_pkthdr hdr;
1627 /* Early return in case of previous error. */
1632 ts = muldiv64 (qemu_get_clock(vm_clock),1000000, ticks_per_sec);
1633 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1635 hdr.ts.tv_sec = ts / 1000000000LL;
1636 hdr.ts.tv_usec = ts % 1000000;
1637 hdr.caplen = caplen;
1639 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
1640 write(s->fd, buf, caplen) != caplen) {
1641 qemu_log("-net dump write error - stop dump\n");
1647 static void net_dump_cleanup(VLANClientState *vc)
1649 DumpState *s = vc->opaque;
1655 static int net_dump_init(VLANState *vlan, const char *device,
1656 const char *name, const char *filename, int len)
1658 struct pcap_file_hdr hdr;
1661 s = qemu_malloc(sizeof(DumpState));
1663 s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
1665 fprintf(stderr, "-net dump: can't open %s\n", filename);
1669 s->pcap_caplen = len;
1671 hdr.magic = PCAP_MAGIC;
1672 hdr.version_major = 2;
1673 hdr.version_minor = 4;
1676 hdr.snaplen = s->pcap_caplen;
1679 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
1680 perror("-net dump write error");
1686 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, dump_receive, NULL,
1687 net_dump_cleanup, s);
1688 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
1689 "dump to %s (len=%d)", filename, len);
1693 /* find or alloc a new VLAN */
1694 VLANState *qemu_find_vlan(int id)
1696 VLANState **pvlan, *vlan;
1697 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1701 vlan = qemu_mallocz(sizeof(VLANState));
1704 pvlan = &first_vlan;
1705 while (*pvlan != NULL)
1706 pvlan = &(*pvlan)->next;
1711 static int nic_get_free_idx(void)
1715 for (index = 0; index < MAX_NICS; index++)
1716 if (!nd_table[index].used)
1721 void qemu_check_nic_model(NICInfo *nd, const char *model)
1723 const char *models[2];
1728 qemu_check_nic_model_list(nd, models, model);
1731 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
1732 const char *default_model)
1734 int i, exit_status = 0;
1737 nd->model = strdup(default_model);
1739 if (strcmp(nd->model, "?") != 0) {
1740 for (i = 0 ; models[i]; i++)
1741 if (strcmp(nd->model, models[i]) == 0)
1744 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
1748 fprintf(stderr, "qemu: Supported NIC models: ");
1749 for (i = 0 ; models[i]; i++)
1750 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
1755 int net_client_init(const char *device, const char *p)
1757 static const char * const fd_params[] = {
1758 "vlan", "name", "fd", NULL
1766 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1767 vlan_id = strtol(buf, NULL, 0);
1769 vlan = qemu_find_vlan(vlan_id);
1771 if (get_param_value(buf, sizeof(buf), "name", p)) {
1774 if (!strcmp(device, "nic")) {
1775 static const char * const nic_params[] = {
1776 "vlan", "name", "macaddr", "model", NULL
1780 int idx = nic_get_free_idx();
1782 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
1783 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1787 if (idx == -1 || nb_nics >= MAX_NICS) {
1788 fprintf(stderr, "Too Many NICs\n");
1792 nd = &nd_table[idx];
1793 macaddr = nd->macaddr;
1799 macaddr[5] = 0x56 + idx;
1801 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
1802 if (parse_macaddr(macaddr, buf) < 0) {
1803 fprintf(stderr, "invalid syntax for ethernet address\n");
1808 if (get_param_value(buf, sizeof(buf), "model", p)) {
1809 nd->model = strdup(buf);
1816 vlan->nb_guest_devs++;
1819 if (!strcmp(device, "none")) {
1821 fprintf(stderr, "qemu: 'none' takes no parameters\n");
1824 /* does nothing. It is needed to signal that no network cards
1829 if (!strcmp(device, "user")) {
1830 static const char * const slirp_params[] = {
1831 "vlan", "name", "hostname", "restrict", "ip", NULL
1833 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
1834 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1838 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
1839 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
1841 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
1842 slirp_restrict = (buf[0] == 'y') ? 1 : 0;
1844 if (get_param_value(buf, sizeof(buf), "ip", p)) {
1845 slirp_ip = strdup(buf);
1847 vlan->nb_host_devs++;
1848 ret = net_slirp_init(vlan, device, name);
1849 } else if (!strcmp(device, "channel")) {
1851 char name[20], *devname;
1852 struct VMChannel *vmc;
1854 port = strtol(p, &devname, 10);
1856 if (port < 1 || port > 65535) {
1857 fprintf(stderr, "vmchannel wrong port number\n");
1861 vmc = malloc(sizeof(struct VMChannel));
1862 snprintf(name, 20, "vmchannel%ld", port);
1863 vmc->hd = qemu_chr_open(name, devname, NULL);
1865 fprintf(stderr, "qemu: could not open vmchannel device"
1871 slirp_add_exec(3, vmc->hd, 4, port);
1872 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
1878 if (!strcmp(device, "tap")) {
1879 static const char * const tap_params[] = {
1880 "vlan", "name", "ifname", NULL
1884 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
1885 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1889 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1890 fprintf(stderr, "tap: no interface name\n");
1894 vlan->nb_host_devs++;
1895 ret = tap_win32_init(vlan, device, name, ifname);
1897 #elif defined (_AIX)
1899 if (!strcmp(device, "tap")) {
1901 char setup_script[1024], down_script[1024];
1903 vlan->nb_host_devs++;
1904 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1905 if (check_params(buf, sizeof(buf), fd_params, p) < 0) {
1906 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1910 fd = strtol(buf, NULL, 0);
1911 fcntl(fd, F_SETFL, O_NONBLOCK);
1912 net_tap_fd_init(vlan, device, name, fd);
1915 static const char * const tap_params[] = {
1916 "vlan", "name", "ifname", "script", "downscript", NULL
1918 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
1919 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1923 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1926 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
1927 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
1929 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
1930 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
1932 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
1936 if (!strcmp(device, "socket")) {
1937 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1939 if (check_params(buf, sizeof(buf), fd_params, p) < 0) {
1940 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1944 fd = strtol(buf, NULL, 0);
1946 if (net_socket_fd_init(vlan, device, name, fd, 1))
1948 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
1949 static const char * const listen_params[] = {
1950 "vlan", "name", "listen", NULL
1952 if (check_params(buf, sizeof(buf), listen_params, p) < 0) {
1953 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1957 ret = net_socket_listen_init(vlan, device, name, buf);
1958 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
1959 static const char * const connect_params[] = {
1960 "vlan", "name", "connect", NULL
1962 if (check_params(buf, sizeof(buf), connect_params, p) < 0) {
1963 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1967 ret = net_socket_connect_init(vlan, device, name, buf);
1968 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
1969 static const char * const mcast_params[] = {
1970 "vlan", "name", "mcast", NULL
1972 if (check_params(buf, sizeof(buf), mcast_params, p) < 0) {
1973 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1977 ret = net_socket_mcast_init(vlan, device, name, buf);
1979 fprintf(stderr, "Unknown socket options: %s\n", p);
1983 vlan->nb_host_devs++;
1986 if (!strcmp(device, "vde")) {
1987 static const char * const vde_params[] = {
1988 "vlan", "name", "sock", "port", "group", "mode", NULL
1990 char vde_sock[1024], vde_group[512];
1991 int vde_port, vde_mode;
1993 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
1994 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1998 vlan->nb_host_devs++;
1999 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2002 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2003 vde_port = strtol(buf, NULL, 10);
2007 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2008 vde_group[0] = '\0';
2010 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2011 vde_mode = strtol(buf, NULL, 8);
2015 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2018 if (!strcmp(device, "dump")) {
2021 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2022 len = strtol(buf, NULL, 0);
2024 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2025 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2027 ret = net_dump_init(vlan, device, name, buf, len);
2029 fprintf(stderr, "Unknown network device: %s\n", device);
2034 fprintf(stderr, "Could not initialize device '%s'\n", device);
2042 void net_client_uninit(NICInfo *nd)
2044 nd->vlan->nb_guest_devs--;
2047 free((void *)nd->model);
2050 static int net_host_check_device(const char *device)
2053 const char *valid_param_list[] = { "tap", "socket", "dump"
2061 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2062 if (!strncmp(valid_param_list[i], device,
2063 strlen(valid_param_list[i])))
2070 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2072 if (!net_host_check_device(device)) {
2073 monitor_printf(mon, "invalid host network device %s\n", device);
2076 if (net_client_init(device, opts ? : "") < 0) {
2077 monitor_printf(mon, "adding host network device %s failed\n", device);
2081 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2084 VLANClientState *vc;
2086 vlan = qemu_find_vlan(vlan_id);
2088 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2089 if (!strcmp(vc->name, device)) {
2095 monitor_printf(mon, "can't find device %s\n", device);
2098 if (!net_host_check_device(vc->model)) {
2099 monitor_printf(mon, "invalid host network device %s\n", device);
2102 qemu_del_vlan_client(vc);
2105 int net_client_parse(const char *str)
2113 while (*p != '\0' && *p != ',') {
2114 if ((q - device) < sizeof(device) - 1)
2122 return net_client_init(device, p);
2125 void do_info_network(Monitor *mon)
2128 VLANClientState *vc;
2130 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2131 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2132 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2133 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2137 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2140 VLANClientState *vc = NULL;
2142 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2143 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2144 if (strcmp(vc->name, name) == 0)
2149 monitor_printf(mon, "could not find network device '%s'", name);
2153 if (strcmp(up_or_down, "up") == 0)
2155 else if (strcmp(up_or_down, "down") == 0)
2158 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2159 "valid\n", up_or_down);
2161 if (vc->link_status_changed)
2162 vc->link_status_changed(vc);
2167 void net_cleanup(void)
2171 /* close network clients */
2172 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2173 VLANClientState *vc = vlan->first_client;
2176 VLANClientState *next = vc->next;
2178 qemu_del_vlan_client(vc);
2185 void net_client_check(void)
2189 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2190 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2192 if (vlan->nb_guest_devs == 0)
2193 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2194 if (vlan->nb_host_devs == 0)
2196 "Warning: vlan %d is not connected to host network\n",