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 static void config_error(Monitor *mon, const char *fmt, ...)
541 monitor_vprintf(mon, fmt, ap);
543 fprintf(stderr, "qemu: ");
544 vfprintf(stderr, fmt, ap);
550 #if defined(CONFIG_SLIRP)
552 /* slirp network adapter */
554 struct slirp_config_str {
555 struct slirp_config_str *next;
559 static int slirp_inited;
560 static struct slirp_config_str *slirp_redirs;
562 static const char *slirp_smb_export;
564 static VLANClientState *slirp_vc;
566 static void slirp_smb(const char *exported_dir);
567 static void slirp_redirection(Monitor *mon, const char *redir_str);
569 int slirp_can_output(void)
571 return !slirp_vc || qemu_can_send_packet(slirp_vc);
574 void slirp_output(const uint8_t *pkt, int pkt_len)
577 printf("slirp output:\n");
578 hex_dump(stdout, pkt, pkt_len);
582 qemu_send_packet(slirp_vc, pkt, pkt_len);
585 int slirp_is_inited(void)
590 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
593 printf("slirp input:\n");
594 hex_dump(stdout, buf, size);
596 slirp_input(buf, size);
599 static int slirp_in_use;
601 static void net_slirp_cleanup(VLANClientState *vc)
606 static int net_slirp_init(VLANState *vlan, const char *model, const char *name,
607 int restricted, const char *ip)
610 /* slirp only supports a single instance so far */
615 slirp_init(restricted, ip);
617 while (slirp_redirs) {
618 struct slirp_config_str *config = slirp_redirs;
620 slirp_redirection(NULL, config->str);
621 slirp_redirs = config->next;
625 if (slirp_smb_export) {
626 slirp_smb(slirp_smb_export);
631 slirp_vc = qemu_new_vlan_client(vlan, model, name, slirp_receive,
632 NULL, net_slirp_cleanup, NULL);
633 slirp_vc->info_str[0] = '\0';
638 static void net_slirp_redir_print(void *opaque, int is_udp,
639 struct in_addr *laddr, u_int lport,
640 struct in_addr *faddr, u_int fport)
642 Monitor *mon = (Monitor *)opaque;
647 h_addr = ntohl(faddr->s_addr);
648 g_addr = ntohl(laddr->s_addr);
650 monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" );
651 snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff,
652 (h_addr >> 16) & 0xff,
653 (h_addr >> 8) & 0xff,
655 monitor_printf(mon, " %15s |", buf);
656 monitor_printf(mon, " %5d |", fport);
658 snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff,
659 (g_addr >> 16) & 0xff,
660 (g_addr >> 8) & 0xff,
662 monitor_printf(mon, " %15s |", buf);
663 monitor_printf(mon, " %5d\n", lport);
667 static void net_slirp_redir_list(Monitor *mon)
672 monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
673 monitor_printf(mon, " | | | | \n");
674 slirp_redir_loop(net_slirp_redir_print, mon);
677 static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
681 const char *p = port_str;
688 if (!port_str || !port_str[0])
691 get_str_sep(buf, sizeof(buf), &p, ':');
693 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
695 } else if (!strcmp(buf, "udp")) {
703 n = slirp_redir_rm(is_udp, host_port);
705 monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
706 is_udp ? "udp" : "tcp", host_port);
710 monitor_printf(mon, "invalid format\n");
713 static void slirp_redirection(Monitor *mon, const char *redir_str)
715 struct in_addr guest_addr;
716 int host_port, guest_port;
722 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
725 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
727 } else if (!strcmp(buf, "udp")) {
733 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
736 host_port = strtol(buf, &r, 0);
741 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
744 if (buf[0] == '\0') {
745 pstrcpy(buf, sizeof(buf), "10.0.2.15");
747 if (!inet_aton(buf, &guest_addr)) {
751 guest_port = strtol(p, &r, 0);
756 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
757 config_error(mon, "could not set up redirection '%s'\n", redir_str);
762 config_error(mon, "invalid redirection format '%s'\n", redir_str);
765 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
767 struct slirp_config_str *config;
771 monitor_printf(mon, "user mode network stack not in use\n");
773 config = qemu_malloc(sizeof(*config));
774 config->str = redir_str;
775 config->next = slirp_redirs;
776 slirp_redirs = config;
781 if (!strcmp(redir_str, "remove")) {
782 net_slirp_redir_rm(mon, redir_opt2);
786 if (!strcmp(redir_str, "list")) {
787 net_slirp_redir_list(mon);
791 slirp_redirection(mon, redir_str);
796 static char smb_dir[1024];
798 static void erase_dir(char *dir_name)
804 /* erase all the files in the directory */
805 if ((d = opendir(dir_name)) != NULL) {
810 if (strcmp(de->d_name, ".") != 0 &&
811 strcmp(de->d_name, "..") != 0) {
812 snprintf(filename, sizeof(filename), "%s/%s",
813 smb_dir, de->d_name);
814 if (unlink(filename) != 0) /* is it a directory? */
823 /* automatic user mode samba server configuration */
824 static void smb_exit(void)
829 static void slirp_smb(const char *exported_dir)
832 char smb_cmdline[1024];
835 /* XXX: better tmp dir construction */
836 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
837 if (mkdir(smb_dir, 0700) < 0) {
838 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
841 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
843 f = fopen(smb_conf, "w");
845 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
852 "socket address=127.0.0.1\n"
854 "lock directory=%s\n"
855 "log file=%s/log.smbd\n"
856 "smb passwd file=%s/smbpasswd\n"
872 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
873 SMBD_COMMAND, smb_conf);
875 slirp_add_exec(0, smb_cmdline, 4, 139);
878 /* automatic user mode samba server configuration */
879 void net_slirp_smb(const char *exported_dir)
881 if (slirp_smb_export) {
882 fprintf(stderr, "-smb given twice\n");
885 slirp_smb_export = exported_dir;
887 slirp_smb(exported_dir);
891 #endif /* !defined(_WIN32) */
893 void do_info_slirp(Monitor *mon)
903 static int vmchannel_can_read(void *opaque)
905 struct VMChannel *vmc = (struct VMChannel*)opaque;
906 return slirp_socket_can_recv(4, vmc->port);
909 static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
911 struct VMChannel *vmc = (struct VMChannel*)opaque;
912 slirp_socket_recv(4, vmc->port, buf, size);
915 #endif /* CONFIG_SLIRP */
919 typedef struct TAPState {
922 char down_script[1024];
923 char down_script_arg[128];
926 static int launch_script(const char *setup_script, const char *ifname, int fd);
928 static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov,
931 TAPState *s = opaque;
935 len = writev(s->fd, iov, iovcnt);
936 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
941 static void tap_receive(void *opaque, const uint8_t *buf, int size)
943 TAPState *s = opaque;
946 ret = write(s->fd, buf, size);
947 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
954 static void tap_send(void *opaque)
956 TAPState *s = opaque;
963 sbuf.maxlen = sizeof(buf);
964 sbuf.buf = (char *)buf;
965 size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
967 size = read(s->fd, buf, sizeof(buf));
970 qemu_send_packet(s->vc, buf, size);
974 static void tap_cleanup(VLANClientState *vc)
976 TAPState *s = vc->opaque;
978 if (s->down_script[0])
979 launch_script(s->down_script, s->down_script_arg, s->fd);
981 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
988 static TAPState *net_tap_fd_init(VLANState *vlan,
995 s = qemu_mallocz(sizeof(TAPState));
997 s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive,
998 NULL, tap_cleanup, s);
999 s->vc->fd_readv = tap_receive_iov;
1000 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
1001 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
1005 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1006 static int tap_open(char *ifname, int ifname_size)
1012 TFR(fd = open("/dev/tap", O_RDWR));
1014 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1019 dev = devname(s.st_rdev, S_IFCHR);
1020 pstrcpy(ifname, ifname_size, dev);
1022 fcntl(fd, F_SETFL, O_NONBLOCK);
1025 #elif defined(__sun__)
1026 #define TUNNEWPPA (('T'<<16) | 0x0001)
1028 * Allocate TAP device, returns opened fd.
1029 * Stores dev name in the first arg(must be large enough).
1031 static int tap_alloc(char *dev, size_t dev_size)
1033 int tap_fd, if_fd, ppa = -1;
1034 static int ip_fd = 0;
1037 static int arp_fd = 0;
1038 int ip_muxid, arp_muxid;
1039 struct strioctl strioc_if, strioc_ppa;
1040 int link_type = I_PLINK;;
1042 char actual_name[32] = "";
1044 memset(&ifr, 0x0, sizeof(ifr));
1048 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
1052 /* Check if IP device was opened */
1056 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1058 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1062 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1064 syslog(LOG_ERR, "Can't open /dev/tap");
1068 /* Assign a new PPA and get its unit number. */
1069 strioc_ppa.ic_cmd = TUNNEWPPA;
1070 strioc_ppa.ic_timout = 0;
1071 strioc_ppa.ic_len = sizeof(ppa);
1072 strioc_ppa.ic_dp = (char *)&ppa;
1073 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1074 syslog (LOG_ERR, "Can't assign new interface");
1076 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1078 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1081 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1082 syslog(LOG_ERR, "Can't push IP module");
1086 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1087 syslog(LOG_ERR, "Can't get flags\n");
1089 snprintf (actual_name, 32, "tap%d", ppa);
1090 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1093 /* Assign ppa according to the unit number returned by tun device */
1095 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1096 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1097 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1098 syslog (LOG_ERR, "Can't get flags\n");
1099 /* Push arp module to if_fd */
1100 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1101 syslog (LOG_ERR, "Can't push ARP module (2)");
1103 /* Push arp module to ip_fd */
1104 if (ioctl (ip_fd, I_POP, NULL) < 0)
1105 syslog (LOG_ERR, "I_POP failed\n");
1106 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1107 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1109 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1111 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1113 /* Set ifname to arp */
1114 strioc_if.ic_cmd = SIOCSLIFNAME;
1115 strioc_if.ic_timout = 0;
1116 strioc_if.ic_len = sizeof(ifr);
1117 strioc_if.ic_dp = (char *)𝔦
1118 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1119 syslog (LOG_ERR, "Can't set ifname to arp\n");
1122 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1123 syslog(LOG_ERR, "Can't link TAP device to IP");
1127 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1128 syslog (LOG_ERR, "Can't link TAP device to ARP");
1132 memset(&ifr, 0x0, sizeof(ifr));
1133 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1134 ifr.lifr_ip_muxid = ip_muxid;
1135 ifr.lifr_arp_muxid = arp_muxid;
1137 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1139 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1140 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1141 syslog (LOG_ERR, "Can't set multiplexor id");
1144 snprintf(dev, dev_size, "tap%d", ppa);
1148 static int tap_open(char *ifname, int ifname_size)
1152 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1153 fprintf(stderr, "Cannot allocate TAP device\n");
1156 pstrcpy(ifname, ifname_size, dev);
1157 fcntl(fd, F_SETFL, O_NONBLOCK);
1160 #elif defined (_AIX)
1161 static int tap_open(char *ifname, int ifname_size)
1163 fprintf (stderr, "no tap on AIX\n");
1167 static int tap_open(char *ifname, int ifname_size)
1172 TFR(fd = open("/dev/net/tun", O_RDWR));
1174 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1177 memset(&ifr, 0, sizeof(ifr));
1178 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1179 if (ifname[0] != '\0')
1180 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1182 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1183 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1185 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1189 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1190 fcntl(fd, F_SETFL, O_NONBLOCK);
1195 static int launch_script(const char *setup_script, const char *ifname, int fd)
1197 sigset_t oldmask, mask;
1203 sigaddset(&mask, SIGCHLD);
1204 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1206 /* try to launch network script */
1209 int open_max = sysconf(_SC_OPEN_MAX), i;
1211 for (i = 0; i < open_max; i++) {
1212 if (i != STDIN_FILENO &&
1213 i != STDOUT_FILENO &&
1214 i != STDERR_FILENO &&
1220 *parg++ = (char *)setup_script;
1221 *parg++ = (char *)ifname;
1223 execv(setup_script, args);
1225 } else if (pid > 0) {
1226 while (waitpid(pid, &status, 0) != pid) {
1229 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1231 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1235 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1239 static int net_tap_init(VLANState *vlan, const char *model,
1240 const char *name, const char *ifname1,
1241 const char *setup_script, const char *down_script)
1247 if (ifname1 != NULL)
1248 pstrcpy(ifname, sizeof(ifname), ifname1);
1251 TFR(fd = tap_open(ifname, sizeof(ifname)));
1255 if (!setup_script || !strcmp(setup_script, "no"))
1257 if (setup_script[0] != '\0') {
1258 if (launch_script(setup_script, ifname, fd))
1261 s = net_tap_fd_init(vlan, model, name, fd);
1262 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1263 "ifname=%s,script=%s,downscript=%s",
1264 ifname, setup_script, down_script);
1265 if (down_script && strcmp(down_script, "no")) {
1266 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1267 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1272 #endif /* !_WIN32 */
1274 #if defined(CONFIG_VDE)
1275 typedef struct VDEState {
1276 VLANClientState *vc;
1280 static void vde_to_qemu(void *opaque)
1282 VDEState *s = opaque;
1286 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
1288 qemu_send_packet(s->vc, buf, size);
1292 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
1294 VDEState *s = opaque;
1297 ret = vde_send(s->vde, (const char *)buf, size, 0);
1298 if (ret < 0 && errno == EINTR) {
1305 static void vde_cleanup(VLANClientState *vc)
1307 VDEState *s = vc->opaque;
1308 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1313 static int net_vde_init(VLANState *vlan, const char *model,
1314 const char *name, const char *sock,
1315 int port, const char *group, int mode)
1318 char *init_group = strlen(group) ? (char *)group : NULL;
1319 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1321 struct vde_open_args args = {
1323 .group = init_group,
1327 s = qemu_mallocz(sizeof(VDEState));
1328 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
1333 s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu,
1334 NULL, vde_cleanup, s);
1335 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1336 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1337 sock, vde_datafd(s->vde));
1342 /* network connection */
1343 typedef struct NetSocketState {
1344 VLANClientState *vc;
1346 int state; /* 0 = getting length, 1 = getting data */
1348 unsigned int packet_len;
1350 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1353 typedef struct NetSocketListenState {
1358 } NetSocketListenState;
1360 /* XXX: we consider we can send the whole packet without blocking */
1361 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
1363 NetSocketState *s = opaque;
1367 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1368 send_all(s->fd, buf, size);
1371 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
1373 NetSocketState *s = opaque;
1374 sendto(s->fd, buf, size, 0,
1375 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1378 static void net_socket_send(void *opaque)
1380 NetSocketState *s = opaque;
1386 size = recv(s->fd, buf1, sizeof(buf1), 0);
1388 err = socket_error();
1389 if (err != EWOULDBLOCK)
1391 } else if (size == 0) {
1392 /* end of connection */
1394 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1400 /* reassemble a packet from the network */
1406 memcpy(s->buf + s->index, buf, l);
1410 if (s->index == 4) {
1412 s->packet_len = ntohl(*(uint32_t *)s->buf);
1418 l = s->packet_len - s->index;
1421 if (s->index + l <= sizeof(s->buf)) {
1422 memcpy(s->buf + s->index, buf, l);
1424 fprintf(stderr, "serious error: oversized packet received,"
1425 "connection terminated.\n");
1433 if (s->index >= s->packet_len) {
1434 qemu_send_packet(s->vc, s->buf, s->packet_len);
1443 static void net_socket_send_dgram(void *opaque)
1445 NetSocketState *s = opaque;
1448 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1452 /* end of connection */
1453 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1456 qemu_send_packet(s->vc, s->buf, size);
1459 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1464 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1465 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1466 inet_ntoa(mcastaddr->sin_addr),
1467 (int)ntohl(mcastaddr->sin_addr.s_addr));
1471 fd = socket(PF_INET, SOCK_DGRAM, 0);
1473 perror("socket(PF_INET, SOCK_DGRAM)");
1478 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1479 (const char *)&val, sizeof(val));
1481 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1485 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1491 /* Add host to multicast group */
1492 imr.imr_multiaddr = mcastaddr->sin_addr;
1493 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1495 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1496 (const char *)&imr, sizeof(struct ip_mreq));
1498 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1502 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1504 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1505 (const char *)&val, sizeof(val));
1507 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1511 socket_set_nonblock(fd);
1519 static void net_socket_cleanup(VLANClientState *vc)
1521 NetSocketState *s = vc->opaque;
1522 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1527 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1530 int fd, int is_connected)
1532 struct sockaddr_in saddr;
1534 socklen_t saddr_len;
1537 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1538 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1539 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1543 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1545 if (saddr.sin_addr.s_addr==0) {
1546 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1550 /* clone dgram socket */
1551 newfd = net_socket_mcast_create(&saddr);
1553 /* error already reported by net_socket_mcast_create() */
1557 /* clone newfd to fd, close newfd */
1562 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1563 fd, strerror(errno));
1568 s = qemu_mallocz(sizeof(NetSocketState));
1571 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram,
1572 NULL, net_socket_cleanup, s);
1573 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1575 /* mcast: save bound address as dst */
1576 if (is_connected) s->dgram_dst=saddr;
1578 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1579 "socket: fd=%d (%s mcast=%s:%d)",
1580 fd, is_connected? "cloned" : "",
1581 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1585 static void net_socket_connect(void *opaque)
1587 NetSocketState *s = opaque;
1588 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1591 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1594 int fd, int is_connected)
1597 s = qemu_mallocz(sizeof(NetSocketState));
1599 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive,
1600 NULL, net_socket_cleanup, s);
1601 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1602 "socket: fd=%d", fd);
1604 net_socket_connect(s);
1606 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1611 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1612 const char *model, const char *name,
1613 int fd, int is_connected)
1615 int so_type=-1, optlen=sizeof(so_type);
1617 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1618 (socklen_t *)&optlen)< 0) {
1619 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1624 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1626 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1628 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1629 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1630 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1635 static void net_socket_accept(void *opaque)
1637 NetSocketListenState *s = opaque;
1639 struct sockaddr_in saddr;
1644 len = sizeof(saddr);
1645 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1646 if (fd < 0 && errno != EINTR) {
1648 } else if (fd >= 0) {
1652 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1656 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1657 "socket: connection from %s:%d",
1658 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1662 static int net_socket_listen_init(VLANState *vlan,
1665 const char *host_str)
1667 NetSocketListenState *s;
1669 struct sockaddr_in saddr;
1671 if (parse_host_port(&saddr, host_str) < 0)
1674 s = qemu_mallocz(sizeof(NetSocketListenState));
1676 fd = socket(PF_INET, SOCK_STREAM, 0);
1681 socket_set_nonblock(fd);
1683 /* allow fast reuse */
1685 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1687 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1692 ret = listen(fd, 0);
1698 s->model = strdup(model);
1699 s->name = name ? strdup(name) : NULL;
1701 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1705 static int net_socket_connect_init(VLANState *vlan,
1708 const char *host_str)
1711 int fd, connected, ret, err;
1712 struct sockaddr_in saddr;
1714 if (parse_host_port(&saddr, host_str) < 0)
1717 fd = socket(PF_INET, SOCK_STREAM, 0);
1722 socket_set_nonblock(fd);
1726 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1728 err = socket_error();
1729 if (err == EINTR || err == EWOULDBLOCK) {
1730 } else if (err == EINPROGRESS) {
1733 } else if (err == WSAEALREADY) {
1746 s = net_socket_fd_init(vlan, model, name, fd, connected);
1749 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1750 "socket: connect to %s:%d",
1751 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1755 static int net_socket_mcast_init(VLANState *vlan,
1758 const char *host_str)
1762 struct sockaddr_in saddr;
1764 if (parse_host_port(&saddr, host_str) < 0)
1768 fd = net_socket_mcast_create(&saddr);
1772 s = net_socket_fd_init(vlan, model, name, fd, 0);
1776 s->dgram_dst = saddr;
1778 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1779 "socket: mcast=%s:%d",
1780 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1785 typedef struct DumpState {
1786 VLANClientState *pcap_vc;
1791 #define PCAP_MAGIC 0xa1b2c3d4
1793 struct pcap_file_hdr {
1795 uint16_t version_major;
1796 uint16_t version_minor;
1803 struct pcap_sf_pkthdr {
1812 static void dump_receive(void *opaque, const uint8_t *buf, int size)
1814 DumpState *s = opaque;
1815 struct pcap_sf_pkthdr hdr;
1819 /* Early return in case of previous error. */
1824 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
1825 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1827 hdr.ts.tv_sec = ts / 1000000;
1828 hdr.ts.tv_usec = ts % 1000000;
1829 hdr.caplen = caplen;
1831 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
1832 write(s->fd, buf, caplen) != caplen) {
1833 qemu_log("-net dump write error - stop dump\n");
1839 static void net_dump_cleanup(VLANClientState *vc)
1841 DumpState *s = vc->opaque;
1847 static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
1848 const char *name, const char *filename, int len)
1850 struct pcap_file_hdr hdr;
1853 s = qemu_malloc(sizeof(DumpState));
1855 s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
1857 config_error(mon, "-net dump: can't open %s\n", filename);
1861 s->pcap_caplen = len;
1863 hdr.magic = PCAP_MAGIC;
1864 hdr.version_major = 2;
1865 hdr.version_minor = 4;
1868 hdr.snaplen = s->pcap_caplen;
1871 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
1872 config_error(mon, "-net dump write error: %s\n", strerror(errno));
1878 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, dump_receive, NULL,
1879 net_dump_cleanup, s);
1880 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
1881 "dump to %s (len=%d)", filename, len);
1885 /* find or alloc a new VLAN */
1886 VLANState *qemu_find_vlan(int id)
1888 VLANState **pvlan, *vlan;
1889 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1893 vlan = qemu_mallocz(sizeof(VLANState));
1896 pvlan = &first_vlan;
1897 while (*pvlan != NULL)
1898 pvlan = &(*pvlan)->next;
1903 static int nic_get_free_idx(void)
1907 for (index = 0; index < MAX_NICS; index++)
1908 if (!nd_table[index].used)
1913 void qemu_check_nic_model(NICInfo *nd, const char *model)
1915 const char *models[2];
1920 qemu_check_nic_model_list(nd, models, model);
1923 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
1924 const char *default_model)
1926 int i, exit_status = 0;
1929 nd->model = strdup(default_model);
1931 if (strcmp(nd->model, "?") != 0) {
1932 for (i = 0 ; models[i]; i++)
1933 if (strcmp(nd->model, models[i]) == 0)
1936 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
1940 fprintf(stderr, "qemu: Supported NIC models: ");
1941 for (i = 0 ; models[i]; i++)
1942 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
1947 int net_client_init(Monitor *mon, const char *device, const char *p)
1949 static const char * const fd_params[] = {
1950 "vlan", "name", "fd", NULL
1958 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1959 vlan_id = strtol(buf, NULL, 0);
1961 vlan = qemu_find_vlan(vlan_id);
1963 if (get_param_value(buf, sizeof(buf), "name", p)) {
1964 name = qemu_strdup(buf);
1966 if (!strcmp(device, "nic")) {
1967 static const char * const nic_params[] = {
1968 "vlan", "name", "macaddr", "model", NULL
1972 int idx = nic_get_free_idx();
1974 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
1975 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
1979 if (idx == -1 || nb_nics >= MAX_NICS) {
1980 config_error(mon, "Too Many NICs\n");
1984 nd = &nd_table[idx];
1985 macaddr = nd->macaddr;
1991 macaddr[5] = 0x56 + idx;
1993 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
1994 if (parse_macaddr(macaddr, buf) < 0) {
1995 config_error(mon, "invalid syntax for ethernet address\n");
2000 if (get_param_value(buf, sizeof(buf), "model", p)) {
2001 nd->model = strdup(buf);
2008 vlan->nb_guest_devs++;
2011 if (!strcmp(device, "none")) {
2013 config_error(mon, "'none' takes no parameters\n");
2017 /* does nothing. It is needed to signal that no network cards
2022 if (!strcmp(device, "user")) {
2023 static const char * const slirp_params[] = {
2024 "vlan", "name", "hostname", "restrict", "ip", NULL
2029 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
2030 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2034 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
2035 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
2037 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
2038 restricted = (buf[0] == 'y') ? 1 : 0;
2040 if (get_param_value(buf, sizeof(buf), "ip", p)) {
2041 ip = qemu_strdup(buf);
2043 vlan->nb_host_devs++;
2044 ret = net_slirp_init(vlan, device, name, restricted, ip);
2046 } else if (!strcmp(device, "channel")) {
2048 char name[20], *devname;
2049 struct VMChannel *vmc;
2051 port = strtol(p, &devname, 10);
2053 if (port < 1 || port > 65535) {
2054 config_error(mon, "vmchannel wrong port number\n");
2058 vmc = malloc(sizeof(struct VMChannel));
2059 snprintf(name, 20, "vmchannel%ld", port);
2060 vmc->hd = qemu_chr_open(name, devname, NULL);
2062 config_error(mon, "could not open vmchannel device '%s'\n",
2068 slirp_add_exec(3, vmc->hd, 4, port);
2069 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
2075 if (!strcmp(device, "tap")) {
2076 static const char * const tap_params[] = {
2077 "vlan", "name", "ifname", NULL
2081 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
2082 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2086 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2087 config_error(mon, "tap: no interface name\n");
2091 vlan->nb_host_devs++;
2092 ret = tap_win32_init(vlan, device, name, ifname);
2094 #elif defined (_AIX)
2096 if (!strcmp(device, "tap")) {
2097 char ifname[64], chkbuf[64];
2098 char setup_script[1024], down_script[1024];
2100 vlan->nb_host_devs++;
2101 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2102 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2103 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2107 fd = strtol(buf, NULL, 0);
2108 fcntl(fd, F_SETFL, O_NONBLOCK);
2109 net_tap_fd_init(vlan, device, name, fd);
2112 static const char * const tap_params[] = {
2113 "vlan", "name", "ifname", "script", "downscript", NULL
2115 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
2116 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2120 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2123 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2124 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2126 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2127 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2129 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2133 if (!strcmp(device, "socket")) {
2135 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2137 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2138 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2142 fd = strtol(buf, NULL, 0);
2144 if (net_socket_fd_init(vlan, device, name, fd, 1))
2146 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
2147 static const char * const listen_params[] = {
2148 "vlan", "name", "listen", NULL
2150 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
2151 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2155 ret = net_socket_listen_init(vlan, device, name, buf);
2156 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
2157 static const char * const connect_params[] = {
2158 "vlan", "name", "connect", NULL
2160 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
2161 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2165 ret = net_socket_connect_init(vlan, device, name, buf);
2166 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
2167 static const char * const mcast_params[] = {
2168 "vlan", "name", "mcast", NULL
2170 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
2171 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2175 ret = net_socket_mcast_init(vlan, device, name, buf);
2177 config_error(mon, "Unknown socket options: %s\n", p);
2181 vlan->nb_host_devs++;
2184 if (!strcmp(device, "vde")) {
2185 static const char * const vde_params[] = {
2186 "vlan", "name", "sock", "port", "group", "mode", NULL
2188 char vde_sock[1024], vde_group[512];
2189 int vde_port, vde_mode;
2191 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
2192 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2196 vlan->nb_host_devs++;
2197 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2200 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2201 vde_port = strtol(buf, NULL, 10);
2205 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2206 vde_group[0] = '\0';
2208 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2209 vde_mode = strtol(buf, NULL, 8);
2213 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2216 if (!strcmp(device, "dump")) {
2219 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2220 len = strtol(buf, NULL, 0);
2222 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2223 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2225 ret = net_dump_init(mon, vlan, device, name, buf, len);
2227 config_error(mon, "Unknown network device: %s\n", device);
2232 config_error(mon, "Could not initialize device '%s'\n", device);
2239 void net_client_uninit(NICInfo *nd)
2241 nd->vlan->nb_guest_devs--;
2244 free((void *)nd->model);
2247 static int net_host_check_device(const char *device)
2250 const char *valid_param_list[] = { "tap", "socket", "dump"
2258 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2259 if (!strncmp(valid_param_list[i], device,
2260 strlen(valid_param_list[i])))
2267 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2269 if (!net_host_check_device(device)) {
2270 monitor_printf(mon, "invalid host network device %s\n", device);
2273 if (net_client_init(mon, device, opts ? opts : "") < 0) {
2274 monitor_printf(mon, "adding host network device %s failed\n", device);
2278 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2281 VLANClientState *vc;
2283 vlan = qemu_find_vlan(vlan_id);
2285 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2286 if (!strcmp(vc->name, device)) {
2292 monitor_printf(mon, "can't find device %s\n", device);
2295 if (!net_host_check_device(vc->model)) {
2296 monitor_printf(mon, "invalid host network device %s\n", device);
2299 qemu_del_vlan_client(vc);
2302 int net_client_parse(const char *str)
2310 while (*p != '\0' && *p != ',') {
2311 if ((q - device) < sizeof(device) - 1)
2319 return net_client_init(NULL, device, p);
2322 void do_info_network(Monitor *mon)
2325 VLANClientState *vc;
2327 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2328 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2329 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2330 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2334 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2337 VLANClientState *vc = NULL;
2339 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2340 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2341 if (strcmp(vc->name, name) == 0)
2346 monitor_printf(mon, "could not find network device '%s'", name);
2350 if (strcmp(up_or_down, "up") == 0)
2352 else if (strcmp(up_or_down, "down") == 0)
2355 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2356 "valid\n", up_or_down);
2358 if (vc->link_status_changed)
2359 vc->link_status_changed(vc);
2364 void net_cleanup(void)
2368 /* close network clients */
2369 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2370 VLANClientState *vc = vlan->first_client;
2373 VLANClientState *next = vc->next;
2375 qemu_del_vlan_client(vc);
2382 void net_client_check(void)
2386 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2387 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2389 if (vlan->nb_guest_devs == 0)
2390 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2391 if (vlan->nb_host_devs == 0)
2393 "Warning: vlan %d is not connected to host network\n",