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 vlan->send_queue = packet->next;
442 qemu_deliver_packet(packet->sender, packet->data, packet->size);
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 *sender, const struct iovec *iov,
482 VLANState *vlan = sender->vlan;
488 if (sender->link_down)
489 return calc_iov_length(iov, iovcnt);
491 if (vlan->delivering) {
492 max_len = calc_iov_length(iov, iovcnt);
494 packet = qemu_malloc(sizeof(VLANPacket) + max_len);
495 packet->next = vlan->send_queue;
496 packet->sender = sender;
498 for (i = 0; i < iovcnt; i++) {
499 size_t len = iov[i].iov_len;
501 memcpy(packet->data + packet->size, iov[i].iov_base, len);
504 vlan->send_queue = packet;
506 vlan->delivering = 1;
508 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
515 len = calc_iov_length(iov, iovcnt);
516 } else if (vc->fd_readv) {
517 len = vc->fd_readv(vc->opaque, iov, iovcnt);
518 } else if (vc->fd_read) {
519 len = vc_sendv_compat(vc, iov, iovcnt);
521 max_len = MAX(max_len, len);
524 while ((packet = vlan->send_queue) != NULL) {
525 vlan->send_queue = packet->next;
526 qemu_deliver_packet(packet->sender, packet->data, packet->size);
529 vlan->delivering = 0;
535 #if defined(CONFIG_SLIRP)
537 /* slirp network adapter */
539 static int slirp_inited;
540 static int slirp_restrict;
541 static char *slirp_ip;
542 static VLANClientState *slirp_vc;
544 int slirp_can_output(void)
546 return !slirp_vc || qemu_can_send_packet(slirp_vc);
549 void slirp_output(const uint8_t *pkt, int pkt_len)
552 printf("slirp output:\n");
553 hex_dump(stdout, pkt, pkt_len);
557 qemu_send_packet(slirp_vc, pkt, pkt_len);
560 int slirp_is_inited(void)
565 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
568 printf("slirp input:\n");
569 hex_dump(stdout, buf, size);
571 slirp_input(buf, size);
574 static int slirp_in_use;
576 static void net_slirp_cleanup(VLANClientState *vc)
581 static int net_slirp_init(VLANState *vlan, const char *model, const char *name)
584 /* slirp only supports a single instance so far */
589 slirp_init(slirp_restrict, slirp_ip);
591 slirp_vc = qemu_new_vlan_client(vlan, model, name,
592 slirp_receive, NULL, net_slirp_cleanup, NULL);
593 slirp_vc->info_str[0] = '\0';
598 static void net_slirp_redir_print(void *opaque, int is_udp,
599 struct in_addr *laddr, u_int lport,
600 struct in_addr *faddr, u_int fport)
602 Monitor *mon = (Monitor *)opaque;
607 h_addr = ntohl(faddr->s_addr);
608 g_addr = ntohl(laddr->s_addr);
610 monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" );
611 snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff,
612 (h_addr >> 16) & 0xff,
613 (h_addr >> 8) & 0xff,
615 monitor_printf(mon, " %15s |", buf);
616 monitor_printf(mon, " %5d |", fport);
618 snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff,
619 (g_addr >> 16) & 0xff,
620 (g_addr >> 8) & 0xff,
622 monitor_printf(mon, " %15s |", buf);
623 monitor_printf(mon, " %5d\n", lport);
627 static void net_slirp_redir_list(Monitor *mon)
632 monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
633 monitor_printf(mon, " | | | | \n");
634 slirp_redir_loop(net_slirp_redir_print, mon);
637 static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
641 const char *p = port_str;
648 if (!port_str || !port_str[0])
651 get_str_sep(buf, sizeof(buf), &p, ':');
653 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
655 } else if (!strcmp(buf, "udp")) {
663 n = slirp_redir_rm(is_udp, host_port);
665 monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
666 is_udp ? "udp" : "tcp", host_port);
670 monitor_printf(mon, "invalid format\n");
673 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
677 const char *p, *errmsg;
678 struct in_addr guest_addr;
679 int host_port, guest_port;
683 slirp_init(slirp_restrict, slirp_ip);
686 if (!strcmp(redir_str, "remove")) {
687 net_slirp_redir_rm(mon, redir_opt2);
691 if (!strcmp(redir_str, "list")) {
692 net_slirp_redir_list(mon);
697 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
699 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
701 } else if (!strcmp(buf, "udp")) {
707 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
709 host_port = strtol(buf, &r, 0);
713 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
715 if (buf[0] == '\0') {
716 pstrcpy(buf, sizeof(buf), "10.0.2.15");
718 if (!inet_aton(buf, &guest_addr))
721 guest_port = strtol(p, &r, 0);
725 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
726 errmsg = "could not set up redirection\n";
732 errmsg = "invalid redirection format\n";
735 monitor_printf(mon, "%s", errmsg);
737 fprintf(stderr, "qemu: %s", errmsg);
744 static char smb_dir[1024];
746 static void erase_dir(char *dir_name)
752 /* erase all the files in the directory */
753 if ((d = opendir(dir_name)) != NULL) {
758 if (strcmp(de->d_name, ".") != 0 &&
759 strcmp(de->d_name, "..") != 0) {
760 snprintf(filename, sizeof(filename), "%s/%s",
761 smb_dir, de->d_name);
762 if (unlink(filename) != 0) /* is it a directory? */
771 /* automatic user mode samba server configuration */
772 static void smb_exit(void)
777 /* automatic user mode samba server configuration */
778 void net_slirp_smb(const char *exported_dir)
781 char smb_cmdline[1024];
786 slirp_init(slirp_restrict, slirp_ip);
789 /* XXX: better tmp dir construction */
790 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
791 if (mkdir(smb_dir, 0700) < 0) {
792 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
795 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
797 f = fopen(smb_conf, "w");
799 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
806 "socket address=127.0.0.1\n"
808 "lock directory=%s\n"
809 "log file=%s/log.smbd\n"
810 "smb passwd file=%s/smbpasswd\n"
826 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
827 SMBD_COMMAND, smb_conf);
829 slirp_add_exec(0, smb_cmdline, 4, 139);
832 #endif /* !defined(_WIN32) */
833 void do_info_slirp(Monitor *mon)
843 static int vmchannel_can_read(void *opaque)
845 struct VMChannel *vmc = (struct VMChannel*)opaque;
846 return slirp_socket_can_recv(4, vmc->port);
849 static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
851 struct VMChannel *vmc = (struct VMChannel*)opaque;
852 slirp_socket_recv(4, vmc->port, buf, size);
855 #endif /* CONFIG_SLIRP */
859 typedef struct TAPState {
862 char down_script[1024];
863 char down_script_arg[128];
866 static int launch_script(const char *setup_script, const char *ifname, int fd);
868 static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov,
871 TAPState *s = opaque;
875 len = writev(s->fd, iov, iovcnt);
876 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
881 static void tap_receive(void *opaque, const uint8_t *buf, int size)
883 TAPState *s = opaque;
886 ret = write(s->fd, buf, size);
887 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
894 static void tap_send(void *opaque)
896 TAPState *s = opaque;
903 sbuf.maxlen = sizeof(buf);
904 sbuf.buf = (char *)buf;
905 size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
907 size = read(s->fd, buf, sizeof(buf));
910 qemu_send_packet(s->vc, buf, size);
914 static void tap_cleanup(VLANClientState *vc)
916 TAPState *s = vc->opaque;
918 if (s->down_script[0])
919 launch_script(s->down_script, s->down_script_arg, s->fd);
921 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
928 static TAPState *net_tap_fd_init(VLANState *vlan,
935 s = qemu_mallocz(sizeof(TAPState));
937 s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive,
938 NULL, tap_cleanup, s);
939 s->vc->fd_readv = tap_receive_iov;
940 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
941 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
945 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
946 static int tap_open(char *ifname, int ifname_size)
952 TFR(fd = open("/dev/tap", O_RDWR));
954 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
959 dev = devname(s.st_rdev, S_IFCHR);
960 pstrcpy(ifname, ifname_size, dev);
962 fcntl(fd, F_SETFL, O_NONBLOCK);
965 #elif defined(__sun__)
966 #define TUNNEWPPA (('T'<<16) | 0x0001)
968 * Allocate TAP device, returns opened fd.
969 * Stores dev name in the first arg(must be large enough).
971 static int tap_alloc(char *dev, size_t dev_size)
973 int tap_fd, if_fd, ppa = -1;
974 static int ip_fd = 0;
977 static int arp_fd = 0;
978 int ip_muxid, arp_muxid;
979 struct strioctl strioc_if, strioc_ppa;
980 int link_type = I_PLINK;;
982 char actual_name[32] = "";
984 memset(&ifr, 0x0, sizeof(ifr));
988 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
992 /* Check if IP device was opened */
996 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
998 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1002 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1004 syslog(LOG_ERR, "Can't open /dev/tap");
1008 /* Assign a new PPA and get its unit number. */
1009 strioc_ppa.ic_cmd = TUNNEWPPA;
1010 strioc_ppa.ic_timout = 0;
1011 strioc_ppa.ic_len = sizeof(ppa);
1012 strioc_ppa.ic_dp = (char *)&ppa;
1013 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1014 syslog (LOG_ERR, "Can't assign new interface");
1016 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1018 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1021 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1022 syslog(LOG_ERR, "Can't push IP module");
1026 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1027 syslog(LOG_ERR, "Can't get flags\n");
1029 snprintf (actual_name, 32, "tap%d", ppa);
1030 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1033 /* Assign ppa according to the unit number returned by tun device */
1035 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1036 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1037 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1038 syslog (LOG_ERR, "Can't get flags\n");
1039 /* Push arp module to if_fd */
1040 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1041 syslog (LOG_ERR, "Can't push ARP module (2)");
1043 /* Push arp module to ip_fd */
1044 if (ioctl (ip_fd, I_POP, NULL) < 0)
1045 syslog (LOG_ERR, "I_POP failed\n");
1046 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1047 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1049 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1051 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1053 /* Set ifname to arp */
1054 strioc_if.ic_cmd = SIOCSLIFNAME;
1055 strioc_if.ic_timout = 0;
1056 strioc_if.ic_len = sizeof(ifr);
1057 strioc_if.ic_dp = (char *)𝔦
1058 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1059 syslog (LOG_ERR, "Can't set ifname to arp\n");
1062 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1063 syslog(LOG_ERR, "Can't link TAP device to IP");
1067 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1068 syslog (LOG_ERR, "Can't link TAP device to ARP");
1072 memset(&ifr, 0x0, sizeof(ifr));
1073 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1074 ifr.lifr_ip_muxid = ip_muxid;
1075 ifr.lifr_arp_muxid = arp_muxid;
1077 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1079 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1080 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1081 syslog (LOG_ERR, "Can't set multiplexor id");
1084 snprintf(dev, dev_size, "tap%d", ppa);
1088 static int tap_open(char *ifname, int ifname_size)
1092 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1093 fprintf(stderr, "Cannot allocate TAP device\n");
1096 pstrcpy(ifname, ifname_size, dev);
1097 fcntl(fd, F_SETFL, O_NONBLOCK);
1100 #elif defined (_AIX)
1101 static int tap_open(char *ifname, int ifname_size)
1103 fprintf (stderr, "no tap on AIX\n");
1107 static int tap_open(char *ifname, int ifname_size)
1112 TFR(fd = open("/dev/net/tun", O_RDWR));
1114 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1117 memset(&ifr, 0, sizeof(ifr));
1118 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1119 if (ifname[0] != '\0')
1120 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1122 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1123 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1125 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1129 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1130 fcntl(fd, F_SETFL, O_NONBLOCK);
1135 static int launch_script(const char *setup_script, const char *ifname, int fd)
1137 sigset_t oldmask, mask;
1143 sigaddset(&mask, SIGCHLD);
1144 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1146 /* try to launch network script */
1149 int open_max = sysconf(_SC_OPEN_MAX), i;
1151 for (i = 0; i < open_max; i++) {
1152 if (i != STDIN_FILENO &&
1153 i != STDOUT_FILENO &&
1154 i != STDERR_FILENO &&
1160 *parg++ = (char *)setup_script;
1161 *parg++ = (char *)ifname;
1163 execv(setup_script, args);
1165 } else if (pid > 0) {
1166 while (waitpid(pid, &status, 0) != pid) {
1169 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1171 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1175 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1179 static int net_tap_init(VLANState *vlan, const char *model,
1180 const char *name, const char *ifname1,
1181 const char *setup_script, const char *down_script)
1187 if (ifname1 != NULL)
1188 pstrcpy(ifname, sizeof(ifname), ifname1);
1191 TFR(fd = tap_open(ifname, sizeof(ifname)));
1195 if (!setup_script || !strcmp(setup_script, "no"))
1197 if (setup_script[0] != '\0') {
1198 if (launch_script(setup_script, ifname, fd))
1201 s = net_tap_fd_init(vlan, model, name, fd);
1202 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1203 "ifname=%s,script=%s,downscript=%s",
1204 ifname, setup_script, down_script);
1205 if (down_script && strcmp(down_script, "no")) {
1206 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1207 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1212 #endif /* !_WIN32 */
1214 #if defined(CONFIG_VDE)
1215 typedef struct VDEState {
1216 VLANClientState *vc;
1220 static void vde_to_qemu(void *opaque)
1222 VDEState *s = opaque;
1226 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
1228 qemu_send_packet(s->vc, buf, size);
1232 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
1234 VDEState *s = opaque;
1237 ret = vde_send(s->vde, (const char *)buf, size, 0);
1238 if (ret < 0 && errno == EINTR) {
1245 static void vde_cleanup(VLANClientState *vc)
1247 VDEState *s = vc->opaque;
1248 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1253 static int net_vde_init(VLANState *vlan, const char *model,
1254 const char *name, const char *sock,
1255 int port, const char *group, int mode)
1258 char *init_group = strlen(group) ? (char *)group : NULL;
1259 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1261 struct vde_open_args args = {
1263 .group = init_group,
1267 s = qemu_mallocz(sizeof(VDEState));
1268 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
1273 s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu,
1274 NULL, vde_cleanup, s);
1275 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1276 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1277 sock, vde_datafd(s->vde));
1282 /* network connection */
1283 typedef struct NetSocketState {
1284 VLANClientState *vc;
1286 int state; /* 0 = getting length, 1 = getting data */
1288 unsigned int packet_len;
1290 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1293 typedef struct NetSocketListenState {
1298 } NetSocketListenState;
1300 /* XXX: we consider we can send the whole packet without blocking */
1301 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
1303 NetSocketState *s = opaque;
1307 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1308 send_all(s->fd, buf, size);
1311 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
1313 NetSocketState *s = opaque;
1314 sendto(s->fd, buf, size, 0,
1315 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1318 static void net_socket_send(void *opaque)
1320 NetSocketState *s = opaque;
1326 size = recv(s->fd, buf1, sizeof(buf1), 0);
1328 err = socket_error();
1329 if (err != EWOULDBLOCK)
1331 } else if (size == 0) {
1332 /* end of connection */
1334 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1340 /* reassemble a packet from the network */
1346 memcpy(s->buf + s->index, buf, l);
1350 if (s->index == 4) {
1352 s->packet_len = ntohl(*(uint32_t *)s->buf);
1358 l = s->packet_len - s->index;
1361 if (s->index + l <= sizeof(s->buf)) {
1362 memcpy(s->buf + s->index, buf, l);
1364 fprintf(stderr, "serious error: oversized packet received,"
1365 "connection terminated.\n");
1373 if (s->index >= s->packet_len) {
1374 qemu_send_packet(s->vc, s->buf, s->packet_len);
1383 static void net_socket_send_dgram(void *opaque)
1385 NetSocketState *s = opaque;
1388 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1392 /* end of connection */
1393 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1396 qemu_send_packet(s->vc, s->buf, size);
1399 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1404 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1405 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1406 inet_ntoa(mcastaddr->sin_addr),
1407 (int)ntohl(mcastaddr->sin_addr.s_addr));
1411 fd = socket(PF_INET, SOCK_DGRAM, 0);
1413 perror("socket(PF_INET, SOCK_DGRAM)");
1418 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1419 (const char *)&val, sizeof(val));
1421 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1425 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1431 /* Add host to multicast group */
1432 imr.imr_multiaddr = mcastaddr->sin_addr;
1433 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1435 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1436 (const char *)&imr, sizeof(struct ip_mreq));
1438 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1442 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1444 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1445 (const char *)&val, sizeof(val));
1447 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1451 socket_set_nonblock(fd);
1459 static void net_socket_cleanup(VLANClientState *vc)
1461 NetSocketState *s = vc->opaque;
1462 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1467 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1470 int fd, int is_connected)
1472 struct sockaddr_in saddr;
1474 socklen_t saddr_len;
1477 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1478 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1479 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1483 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1485 if (saddr.sin_addr.s_addr==0) {
1486 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1490 /* clone dgram socket */
1491 newfd = net_socket_mcast_create(&saddr);
1493 /* error already reported by net_socket_mcast_create() */
1497 /* clone newfd to fd, close newfd */
1502 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1503 fd, strerror(errno));
1508 s = qemu_mallocz(sizeof(NetSocketState));
1511 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram,
1512 NULL, net_socket_cleanup, s);
1513 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1515 /* mcast: save bound address as dst */
1516 if (is_connected) s->dgram_dst=saddr;
1518 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1519 "socket: fd=%d (%s mcast=%s:%d)",
1520 fd, is_connected? "cloned" : "",
1521 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1525 static void net_socket_connect(void *opaque)
1527 NetSocketState *s = opaque;
1528 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1531 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1534 int fd, int is_connected)
1537 s = qemu_mallocz(sizeof(NetSocketState));
1539 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive,
1540 NULL, net_socket_cleanup, s);
1541 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1542 "socket: fd=%d", fd);
1544 net_socket_connect(s);
1546 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1551 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1552 const char *model, const char *name,
1553 int fd, int is_connected)
1555 int so_type=-1, optlen=sizeof(so_type);
1557 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1558 (socklen_t *)&optlen)< 0) {
1559 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1564 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1566 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1568 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1569 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1570 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1575 static void net_socket_accept(void *opaque)
1577 NetSocketListenState *s = opaque;
1579 struct sockaddr_in saddr;
1584 len = sizeof(saddr);
1585 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1586 if (fd < 0 && errno != EINTR) {
1588 } else if (fd >= 0) {
1592 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1596 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1597 "socket: connection from %s:%d",
1598 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1602 static int net_socket_listen_init(VLANState *vlan,
1605 const char *host_str)
1607 NetSocketListenState *s;
1609 struct sockaddr_in saddr;
1611 if (parse_host_port(&saddr, host_str) < 0)
1614 s = qemu_mallocz(sizeof(NetSocketListenState));
1616 fd = socket(PF_INET, SOCK_STREAM, 0);
1621 socket_set_nonblock(fd);
1623 /* allow fast reuse */
1625 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1627 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1632 ret = listen(fd, 0);
1638 s->model = strdup(model);
1639 s->name = name ? strdup(name) : NULL;
1641 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1645 static int net_socket_connect_init(VLANState *vlan,
1648 const char *host_str)
1651 int fd, connected, ret, err;
1652 struct sockaddr_in saddr;
1654 if (parse_host_port(&saddr, host_str) < 0)
1657 fd = socket(PF_INET, SOCK_STREAM, 0);
1662 socket_set_nonblock(fd);
1666 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1668 err = socket_error();
1669 if (err == EINTR || err == EWOULDBLOCK) {
1670 } else if (err == EINPROGRESS) {
1673 } else if (err == WSAEALREADY) {
1686 s = net_socket_fd_init(vlan, model, name, fd, connected);
1689 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1690 "socket: connect to %s:%d",
1691 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1695 static int net_socket_mcast_init(VLANState *vlan,
1698 const char *host_str)
1702 struct sockaddr_in saddr;
1704 if (parse_host_port(&saddr, host_str) < 0)
1708 fd = net_socket_mcast_create(&saddr);
1712 s = net_socket_fd_init(vlan, model, name, fd, 0);
1716 s->dgram_dst = saddr;
1718 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1719 "socket: mcast=%s:%d",
1720 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1725 typedef struct DumpState {
1726 VLANClientState *pcap_vc;
1731 #define PCAP_MAGIC 0xa1b2c3d4
1733 struct pcap_file_hdr {
1735 uint16_t version_major;
1736 uint16_t version_minor;
1743 struct pcap_sf_pkthdr {
1752 static void dump_receive(void *opaque, const uint8_t *buf, int size)
1754 DumpState *s = opaque;
1755 struct pcap_sf_pkthdr hdr;
1759 /* Early return in case of previous error. */
1764 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
1765 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1767 hdr.ts.tv_sec = ts / 1000000;
1768 hdr.ts.tv_usec = ts % 1000000;
1769 hdr.caplen = caplen;
1771 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
1772 write(s->fd, buf, caplen) != caplen) {
1773 qemu_log("-net dump write error - stop dump\n");
1779 static void net_dump_cleanup(VLANClientState *vc)
1781 DumpState *s = vc->opaque;
1787 static int net_dump_init(VLANState *vlan, const char *device,
1788 const char *name, const char *filename, int len)
1790 struct pcap_file_hdr hdr;
1793 s = qemu_malloc(sizeof(DumpState));
1795 s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
1797 fprintf(stderr, "-net dump: can't open %s\n", filename);
1801 s->pcap_caplen = len;
1803 hdr.magic = PCAP_MAGIC;
1804 hdr.version_major = 2;
1805 hdr.version_minor = 4;
1808 hdr.snaplen = s->pcap_caplen;
1811 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
1812 perror("-net dump write error");
1818 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, dump_receive, NULL,
1819 net_dump_cleanup, s);
1820 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
1821 "dump to %s (len=%d)", filename, len);
1825 /* find or alloc a new VLAN */
1826 VLANState *qemu_find_vlan(int id)
1828 VLANState **pvlan, *vlan;
1829 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1833 vlan = qemu_mallocz(sizeof(VLANState));
1836 pvlan = &first_vlan;
1837 while (*pvlan != NULL)
1838 pvlan = &(*pvlan)->next;
1843 static int nic_get_free_idx(void)
1847 for (index = 0; index < MAX_NICS; index++)
1848 if (!nd_table[index].used)
1853 void qemu_check_nic_model(NICInfo *nd, const char *model)
1855 const char *models[2];
1860 qemu_check_nic_model_list(nd, models, model);
1863 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
1864 const char *default_model)
1866 int i, exit_status = 0;
1869 nd->model = strdup(default_model);
1871 if (strcmp(nd->model, "?") != 0) {
1872 for (i = 0 ; models[i]; i++)
1873 if (strcmp(nd->model, models[i]) == 0)
1876 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
1880 fprintf(stderr, "qemu: Supported NIC models: ");
1881 for (i = 0 ; models[i]; i++)
1882 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
1887 int net_client_init(const char *device, const char *p)
1889 static const char * const fd_params[] = {
1890 "vlan", "name", "fd", NULL
1898 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1899 vlan_id = strtol(buf, NULL, 0);
1901 vlan = qemu_find_vlan(vlan_id);
1903 if (get_param_value(buf, sizeof(buf), "name", p)) {
1906 if (!strcmp(device, "nic")) {
1907 static const char * const nic_params[] = {
1908 "vlan", "name", "macaddr", "model", NULL
1912 int idx = nic_get_free_idx();
1914 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
1915 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1919 if (idx == -1 || nb_nics >= MAX_NICS) {
1920 fprintf(stderr, "Too Many NICs\n");
1924 nd = &nd_table[idx];
1925 macaddr = nd->macaddr;
1931 macaddr[5] = 0x56 + idx;
1933 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
1934 if (parse_macaddr(macaddr, buf) < 0) {
1935 fprintf(stderr, "invalid syntax for ethernet address\n");
1940 if (get_param_value(buf, sizeof(buf), "model", p)) {
1941 nd->model = strdup(buf);
1948 vlan->nb_guest_devs++;
1951 if (!strcmp(device, "none")) {
1953 fprintf(stderr, "qemu: 'none' takes no parameters\n");
1956 /* does nothing. It is needed to signal that no network cards
1961 if (!strcmp(device, "user")) {
1962 static const char * const slirp_params[] = {
1963 "vlan", "name", "hostname", "restrict", "ip", NULL
1965 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
1966 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
1970 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
1971 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
1973 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
1974 slirp_restrict = (buf[0] == 'y') ? 1 : 0;
1976 if (get_param_value(buf, sizeof(buf), "ip", p)) {
1977 slirp_ip = strdup(buf);
1979 vlan->nb_host_devs++;
1980 ret = net_slirp_init(vlan, device, name);
1981 } else if (!strcmp(device, "channel")) {
1983 char name[20], *devname;
1984 struct VMChannel *vmc;
1986 port = strtol(p, &devname, 10);
1988 if (port < 1 || port > 65535) {
1989 fprintf(stderr, "vmchannel wrong port number\n");
1993 vmc = malloc(sizeof(struct VMChannel));
1994 snprintf(name, 20, "vmchannel%ld", port);
1995 vmc->hd = qemu_chr_open(name, devname, NULL);
1997 fprintf(stderr, "qemu: could not open vmchannel device"
2003 slirp_add_exec(3, vmc->hd, 4, port);
2004 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
2010 if (!strcmp(device, "tap")) {
2011 static const char * const tap_params[] = {
2012 "vlan", "name", "ifname", NULL
2016 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
2017 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
2021 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2022 fprintf(stderr, "tap: no interface name\n");
2026 vlan->nb_host_devs++;
2027 ret = tap_win32_init(vlan, device, name, ifname);
2029 #elif defined (_AIX)
2031 if (!strcmp(device, "tap")) {
2032 char ifname[64], chkbuf[64];
2033 char setup_script[1024], down_script[1024];
2035 vlan->nb_host_devs++;
2036 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2037 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2038 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
2042 fd = strtol(buf, NULL, 0);
2043 fcntl(fd, F_SETFL, O_NONBLOCK);
2044 net_tap_fd_init(vlan, device, name, fd);
2047 static const char * const tap_params[] = {
2048 "vlan", "name", "ifname", "script", "downscript", NULL
2050 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
2051 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
2055 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2058 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2059 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2061 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2062 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2064 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2068 if (!strcmp(device, "socket")) {
2070 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2072 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2073 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
2077 fd = strtol(buf, NULL, 0);
2079 if (net_socket_fd_init(vlan, device, name, fd, 1))
2081 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
2082 static const char * const listen_params[] = {
2083 "vlan", "name", "listen", NULL
2085 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
2086 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
2090 ret = net_socket_listen_init(vlan, device, name, buf);
2091 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
2092 static const char * const connect_params[] = {
2093 "vlan", "name", "connect", NULL
2095 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
2096 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
2100 ret = net_socket_connect_init(vlan, device, name, buf);
2101 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
2102 static const char * const mcast_params[] = {
2103 "vlan", "name", "mcast", NULL
2105 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
2106 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
2110 ret = net_socket_mcast_init(vlan, device, name, buf);
2112 fprintf(stderr, "Unknown socket options: %s\n", p);
2116 vlan->nb_host_devs++;
2119 if (!strcmp(device, "vde")) {
2120 static const char * const vde_params[] = {
2121 "vlan", "name", "sock", "port", "group", "mode", NULL
2123 char vde_sock[1024], vde_group[512];
2124 int vde_port, vde_mode;
2126 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
2127 fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
2131 vlan->nb_host_devs++;
2132 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2135 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2136 vde_port = strtol(buf, NULL, 10);
2140 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2141 vde_group[0] = '\0';
2143 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2144 vde_mode = strtol(buf, NULL, 8);
2148 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2151 if (!strcmp(device, "dump")) {
2154 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2155 len = strtol(buf, NULL, 0);
2157 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2158 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2160 ret = net_dump_init(vlan, device, name, buf, len);
2162 fprintf(stderr, "Unknown network device: %s\n", device);
2167 fprintf(stderr, "Could not initialize device '%s'\n", device);
2175 void net_client_uninit(NICInfo *nd)
2177 nd->vlan->nb_guest_devs--;
2180 free((void *)nd->model);
2183 static int net_host_check_device(const char *device)
2186 const char *valid_param_list[] = { "tap", "socket", "dump"
2194 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2195 if (!strncmp(valid_param_list[i], device,
2196 strlen(valid_param_list[i])))
2203 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2205 if (!net_host_check_device(device)) {
2206 monitor_printf(mon, "invalid host network device %s\n", device);
2209 if (net_client_init(device, opts ? opts : "") < 0) {
2210 monitor_printf(mon, "adding host network device %s failed\n", device);
2214 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2217 VLANClientState *vc;
2219 vlan = qemu_find_vlan(vlan_id);
2221 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2222 if (!strcmp(vc->name, device)) {
2228 monitor_printf(mon, "can't find device %s\n", device);
2231 if (!net_host_check_device(vc->model)) {
2232 monitor_printf(mon, "invalid host network device %s\n", device);
2235 qemu_del_vlan_client(vc);
2238 int net_client_parse(const char *str)
2246 while (*p != '\0' && *p != ',') {
2247 if ((q - device) < sizeof(device) - 1)
2255 return net_client_init(device, p);
2258 void do_info_network(Monitor *mon)
2261 VLANClientState *vc;
2263 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2264 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2265 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2266 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2270 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2273 VLANClientState *vc = NULL;
2275 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2276 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2277 if (strcmp(vc->name, name) == 0)
2282 monitor_printf(mon, "could not find network device '%s'", name);
2286 if (strcmp(up_or_down, "up") == 0)
2288 else if (strcmp(up_or_down, "down") == 0)
2291 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2292 "valid\n", up_or_down);
2294 if (vc->link_status_changed)
2295 vc->link_status_changed(vc);
2300 void net_cleanup(void)
2304 /* close network clients */
2305 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2306 VLANClientState *vc = vlan->first_client;
2309 VLANClientState *next = vc->next;
2311 qemu_del_vlan_client(vc);
2318 void net_client_check(void)
2322 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2323 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2325 if (vlan->nb_guest_devs == 0)
2326 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2327 if (vlan->nb_host_devs == 0)
2329 "Warning: vlan %d is not connected to host network\n",