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 NetCanReceive *can_receive,
337 NetReceiveIOV *receive_iov,
341 VLANClientState *vc, **pvc;
342 vc = qemu_mallocz(sizeof(VLANClientState));
343 vc->model = strdup(model);
345 vc->name = strdup(name);
347 vc->name = assign_name(vc, model);
348 vc->can_receive = can_receive;
349 vc->receive = receive;
350 vc->receive_iov = receive_iov;
351 vc->cleanup = cleanup;
356 pvc = &vlan->first_client;
363 void qemu_del_vlan_client(VLANClientState *vc)
365 VLANClientState **pvc = &vc->vlan->first_client;
381 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
383 VLANClientState **pvc = &vlan->first_client;
386 if ((*pvc)->opaque == opaque)
394 int qemu_can_send_packet(VLANClientState *sender)
396 VLANState *vlan = sender->vlan;
399 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
404 /* no can_receive() handler, they can always receive */
405 if (!vc->can_receive || vc->can_receive(vc)) {
413 qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size)
417 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
418 if (vc != sender && !vc->link_down) {
419 vc->receive(vc, buf, size);
424 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
426 VLANState *vlan = vc->vlan;
433 printf("vlan %d send:\n", vlan->id);
434 hex_dump(stdout, buf, size);
436 if (vlan->delivering) {
437 packet = qemu_malloc(sizeof(VLANPacket) + size);
438 packet->next = vlan->send_queue;
441 memcpy(packet->data, buf, size);
442 vlan->send_queue = packet;
444 vlan->delivering = 1;
445 qemu_deliver_packet(vc, buf, size);
446 while ((packet = vlan->send_queue) != NULL) {
447 vlan->send_queue = packet->next;
448 qemu_deliver_packet(packet->sender, packet->data, packet->size);
451 vlan->delivering = 0;
455 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
458 uint8_t buffer[4096];
462 for (i = 0; i < iovcnt; i++) {
465 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
466 memcpy(buffer + offset, iov[i].iov_base, len);
470 vc->receive(vc, buffer, offset);
475 static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
480 for (i = 0; i < iovcnt; i++)
481 offset += iov[i].iov_len;
485 ssize_t qemu_sendv_packet(VLANClientState *sender, const struct iovec *iov,
488 VLANState *vlan = sender->vlan;
494 if (sender->link_down)
495 return calc_iov_length(iov, iovcnt);
497 if (vlan->delivering) {
498 max_len = calc_iov_length(iov, iovcnt);
500 packet = qemu_malloc(sizeof(VLANPacket) + max_len);
501 packet->next = vlan->send_queue;
502 packet->sender = sender;
504 for (i = 0; i < iovcnt; i++) {
505 size_t len = iov[i].iov_len;
507 memcpy(packet->data + packet->size, iov[i].iov_base, len);
510 vlan->send_queue = packet;
512 vlan->delivering = 1;
514 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
521 len = calc_iov_length(iov, iovcnt);
522 } else if (vc->receive_iov) {
523 len = vc->receive_iov(vc, iov, iovcnt);
524 } else if (vc->receive) {
525 len = vc_sendv_compat(vc, iov, iovcnt);
527 max_len = MAX(max_len, len);
530 while ((packet = vlan->send_queue) != NULL) {
531 vlan->send_queue = packet->next;
532 qemu_deliver_packet(packet->sender, packet->data, packet->size);
535 vlan->delivering = 0;
541 static void config_error(Monitor *mon, const char *fmt, ...)
547 monitor_vprintf(mon, fmt, ap);
549 fprintf(stderr, "qemu: ");
550 vfprintf(stderr, fmt, ap);
556 #if defined(CONFIG_SLIRP)
558 /* slirp network adapter */
560 struct slirp_config_str {
561 struct slirp_config_str *next;
565 static int slirp_inited;
566 static struct slirp_config_str *slirp_redirs;
568 static const char *slirp_smb_export;
570 static VLANClientState *slirp_vc;
572 static void slirp_smb(const char *exported_dir);
573 static void slirp_redirection(Monitor *mon, const char *redir_str);
575 int slirp_can_output(void)
577 return !slirp_vc || qemu_can_send_packet(slirp_vc);
580 void slirp_output(const uint8_t *pkt, int pkt_len)
583 printf("slirp output:\n");
584 hex_dump(stdout, pkt, pkt_len);
588 qemu_send_packet(slirp_vc, pkt, pkt_len);
591 int slirp_is_inited(void)
596 static void slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
599 printf("slirp input:\n");
600 hex_dump(stdout, buf, size);
602 slirp_input(buf, size);
605 static int slirp_in_use;
607 static void net_slirp_cleanup(VLANClientState *vc)
612 static int net_slirp_init(VLANState *vlan, const char *model, const char *name,
613 int restricted, const char *ip)
616 /* slirp only supports a single instance so far */
621 slirp_init(restricted, ip);
623 while (slirp_redirs) {
624 struct slirp_config_str *config = slirp_redirs;
626 slirp_redirection(NULL, config->str);
627 slirp_redirs = config->next;
631 if (slirp_smb_export) {
632 slirp_smb(slirp_smb_export);
637 slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive,
638 NULL, net_slirp_cleanup, NULL);
639 slirp_vc->info_str[0] = '\0';
644 static void net_slirp_redir_print(void *opaque, int is_udp,
645 struct in_addr *laddr, u_int lport,
646 struct in_addr *faddr, u_int fport)
648 Monitor *mon = (Monitor *)opaque;
653 h_addr = ntohl(faddr->s_addr);
654 g_addr = ntohl(laddr->s_addr);
656 monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" );
657 snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff,
658 (h_addr >> 16) & 0xff,
659 (h_addr >> 8) & 0xff,
661 monitor_printf(mon, " %15s |", buf);
662 monitor_printf(mon, " %5d |", fport);
664 snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff,
665 (g_addr >> 16) & 0xff,
666 (g_addr >> 8) & 0xff,
668 monitor_printf(mon, " %15s |", buf);
669 monitor_printf(mon, " %5d\n", lport);
673 static void net_slirp_redir_list(Monitor *mon)
678 monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
679 monitor_printf(mon, " | | | | \n");
680 slirp_redir_loop(net_slirp_redir_print, mon);
683 static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
687 const char *p = port_str;
694 if (!port_str || !port_str[0])
697 get_str_sep(buf, sizeof(buf), &p, ':');
699 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
701 } else if (!strcmp(buf, "udp")) {
709 n = slirp_redir_rm(is_udp, host_port);
711 monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
712 is_udp ? "udp" : "tcp", host_port);
716 monitor_printf(mon, "invalid format\n");
719 static void slirp_redirection(Monitor *mon, const char *redir_str)
721 struct in_addr guest_addr;
722 int host_port, guest_port;
728 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
731 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
733 } else if (!strcmp(buf, "udp")) {
739 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
742 host_port = strtol(buf, &r, 0);
747 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
750 if (buf[0] == '\0') {
751 pstrcpy(buf, sizeof(buf), "10.0.2.15");
753 if (!inet_aton(buf, &guest_addr)) {
757 guest_port = strtol(p, &r, 0);
762 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
763 config_error(mon, "could not set up redirection '%s'\n", redir_str);
768 config_error(mon, "invalid redirection format '%s'\n", redir_str);
771 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
773 struct slirp_config_str *config;
777 monitor_printf(mon, "user mode network stack not in use\n");
779 config = qemu_malloc(sizeof(*config));
780 config->str = redir_str;
781 config->next = slirp_redirs;
782 slirp_redirs = config;
787 if (!strcmp(redir_str, "remove")) {
788 net_slirp_redir_rm(mon, redir_opt2);
792 if (!strcmp(redir_str, "list")) {
793 net_slirp_redir_list(mon);
797 slirp_redirection(mon, redir_str);
802 static char smb_dir[1024];
804 static void erase_dir(char *dir_name)
810 /* erase all the files in the directory */
811 if ((d = opendir(dir_name)) != NULL) {
816 if (strcmp(de->d_name, ".") != 0 &&
817 strcmp(de->d_name, "..") != 0) {
818 snprintf(filename, sizeof(filename), "%s/%s",
819 smb_dir, de->d_name);
820 if (unlink(filename) != 0) /* is it a directory? */
829 /* automatic user mode samba server configuration */
830 static void smb_exit(void)
835 static void slirp_smb(const char *exported_dir)
838 char smb_cmdline[1024];
841 /* XXX: better tmp dir construction */
842 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
843 if (mkdir(smb_dir, 0700) < 0) {
844 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
847 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
849 f = fopen(smb_conf, "w");
851 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
858 "socket address=127.0.0.1\n"
860 "lock directory=%s\n"
861 "log file=%s/log.smbd\n"
862 "smb passwd file=%s/smbpasswd\n"
878 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
879 SMBD_COMMAND, smb_conf);
881 slirp_add_exec(0, smb_cmdline, 4, 139);
884 /* automatic user mode samba server configuration */
885 void net_slirp_smb(const char *exported_dir)
887 if (slirp_smb_export) {
888 fprintf(stderr, "-smb given twice\n");
891 slirp_smb_export = exported_dir;
893 slirp_smb(exported_dir);
897 #endif /* !defined(_WIN32) */
899 void do_info_slirp(Monitor *mon)
909 static int vmchannel_can_read(void *opaque)
911 struct VMChannel *vmc = (struct VMChannel*)opaque;
912 return slirp_socket_can_recv(4, vmc->port);
915 static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
917 struct VMChannel *vmc = (struct VMChannel*)opaque;
918 slirp_socket_recv(4, vmc->port, buf, size);
921 #endif /* CONFIG_SLIRP */
925 typedef struct TAPState {
928 char down_script[1024];
929 char down_script_arg[128];
933 static int launch_script(const char *setup_script, const char *ifname, int fd);
935 static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov,
938 TAPState *s = vc->opaque;
942 len = writev(s->fd, iov, iovcnt);
943 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
948 static void tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
950 TAPState *s = vc->opaque;
953 ret = write(s->fd, buf, size);
954 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
961 static int tap_can_send(void *opaque)
963 TAPState *s = opaque;
965 return qemu_can_send_packet(s->vc);
969 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
974 sbuf.maxlen = maxlen;
975 sbuf.buf = (char *)buf;
977 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
980 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
982 return read(tapfd, buf, maxlen);
986 static void tap_send(void *opaque)
988 TAPState *s = opaque;
991 size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
993 qemu_send_packet(s->vc, s->buf, size);
997 static void tap_cleanup(VLANClientState *vc)
999 TAPState *s = vc->opaque;
1001 if (s->down_script[0])
1002 launch_script(s->down_script, s->down_script_arg, s->fd);
1004 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1011 static TAPState *net_tap_fd_init(VLANState *vlan,
1018 s = qemu_mallocz(sizeof(TAPState));
1020 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
1021 tap_receive_iov, tap_cleanup, s);
1022 qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s);
1023 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
1027 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1028 static int tap_open(char *ifname, int ifname_size)
1034 TFR(fd = open("/dev/tap", O_RDWR));
1036 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1041 dev = devname(s.st_rdev, S_IFCHR);
1042 pstrcpy(ifname, ifname_size, dev);
1044 fcntl(fd, F_SETFL, O_NONBLOCK);
1047 #elif defined(__sun__)
1048 #define TUNNEWPPA (('T'<<16) | 0x0001)
1050 * Allocate TAP device, returns opened fd.
1051 * Stores dev name in the first arg(must be large enough).
1053 static int tap_alloc(char *dev, size_t dev_size)
1055 int tap_fd, if_fd, ppa = -1;
1056 static int ip_fd = 0;
1059 static int arp_fd = 0;
1060 int ip_muxid, arp_muxid;
1061 struct strioctl strioc_if, strioc_ppa;
1062 int link_type = I_PLINK;;
1064 char actual_name[32] = "";
1066 memset(&ifr, 0x0, sizeof(ifr));
1070 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
1074 /* Check if IP device was opened */
1078 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1080 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1084 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1086 syslog(LOG_ERR, "Can't open /dev/tap");
1090 /* Assign a new PPA and get its unit number. */
1091 strioc_ppa.ic_cmd = TUNNEWPPA;
1092 strioc_ppa.ic_timout = 0;
1093 strioc_ppa.ic_len = sizeof(ppa);
1094 strioc_ppa.ic_dp = (char *)&ppa;
1095 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1096 syslog (LOG_ERR, "Can't assign new interface");
1098 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1100 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1103 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1104 syslog(LOG_ERR, "Can't push IP module");
1108 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1109 syslog(LOG_ERR, "Can't get flags\n");
1111 snprintf (actual_name, 32, "tap%d", ppa);
1112 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1115 /* Assign ppa according to the unit number returned by tun device */
1117 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1118 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1119 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1120 syslog (LOG_ERR, "Can't get flags\n");
1121 /* Push arp module to if_fd */
1122 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1123 syslog (LOG_ERR, "Can't push ARP module (2)");
1125 /* Push arp module to ip_fd */
1126 if (ioctl (ip_fd, I_POP, NULL) < 0)
1127 syslog (LOG_ERR, "I_POP failed\n");
1128 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1129 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1131 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1133 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1135 /* Set ifname to arp */
1136 strioc_if.ic_cmd = SIOCSLIFNAME;
1137 strioc_if.ic_timout = 0;
1138 strioc_if.ic_len = sizeof(ifr);
1139 strioc_if.ic_dp = (char *)𝔦
1140 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1141 syslog (LOG_ERR, "Can't set ifname to arp\n");
1144 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1145 syslog(LOG_ERR, "Can't link TAP device to IP");
1149 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1150 syslog (LOG_ERR, "Can't link TAP device to ARP");
1154 memset(&ifr, 0x0, sizeof(ifr));
1155 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1156 ifr.lifr_ip_muxid = ip_muxid;
1157 ifr.lifr_arp_muxid = arp_muxid;
1159 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1161 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1162 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1163 syslog (LOG_ERR, "Can't set multiplexor id");
1166 snprintf(dev, dev_size, "tap%d", ppa);
1170 static int tap_open(char *ifname, int ifname_size)
1174 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1175 fprintf(stderr, "Cannot allocate TAP device\n");
1178 pstrcpy(ifname, ifname_size, dev);
1179 fcntl(fd, F_SETFL, O_NONBLOCK);
1182 #elif defined (_AIX)
1183 static int tap_open(char *ifname, int ifname_size)
1185 fprintf (stderr, "no tap on AIX\n");
1189 static int tap_open(char *ifname, int ifname_size)
1194 TFR(fd = open("/dev/net/tun", O_RDWR));
1196 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1199 memset(&ifr, 0, sizeof(ifr));
1200 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1201 if (ifname[0] != '\0')
1202 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1204 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1205 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1207 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1211 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1212 fcntl(fd, F_SETFL, O_NONBLOCK);
1217 static int launch_script(const char *setup_script, const char *ifname, int fd)
1219 sigset_t oldmask, mask;
1225 sigaddset(&mask, SIGCHLD);
1226 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1228 /* try to launch network script */
1231 int open_max = sysconf(_SC_OPEN_MAX), i;
1233 for (i = 0; i < open_max; i++) {
1234 if (i != STDIN_FILENO &&
1235 i != STDOUT_FILENO &&
1236 i != STDERR_FILENO &&
1242 *parg++ = (char *)setup_script;
1243 *parg++ = (char *)ifname;
1245 execv(setup_script, args);
1247 } else if (pid > 0) {
1248 while (waitpid(pid, &status, 0) != pid) {
1251 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1253 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1257 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1261 static int net_tap_init(VLANState *vlan, const char *model,
1262 const char *name, const char *ifname1,
1263 const char *setup_script, const char *down_script)
1269 if (ifname1 != NULL)
1270 pstrcpy(ifname, sizeof(ifname), ifname1);
1273 TFR(fd = tap_open(ifname, sizeof(ifname)));
1277 if (!setup_script || !strcmp(setup_script, "no"))
1279 if (setup_script[0] != '\0') {
1280 if (launch_script(setup_script, ifname, fd))
1283 s = net_tap_fd_init(vlan, model, name, fd);
1284 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1285 "ifname=%s,script=%s,downscript=%s",
1286 ifname, setup_script, down_script);
1287 if (down_script && strcmp(down_script, "no")) {
1288 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1289 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1294 #endif /* !_WIN32 */
1296 #if defined(CONFIG_VDE)
1297 typedef struct VDEState {
1298 VLANClientState *vc;
1302 static void vde_to_qemu(void *opaque)
1304 VDEState *s = opaque;
1308 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
1310 qemu_send_packet(s->vc, buf, size);
1314 static void vde_receive(VLANClientState *vc, const uint8_t *buf, int size)
1316 VDEState *s = vc->opaque;
1319 ret = vde_send(s->vde, (const char *)buf, size, 0);
1320 if (ret < 0 && errno == EINTR) {
1327 static void vde_cleanup(VLANClientState *vc)
1329 VDEState *s = vc->opaque;
1330 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1335 static int net_vde_init(VLANState *vlan, const char *model,
1336 const char *name, const char *sock,
1337 int port, const char *group, int mode)
1340 char *init_group = strlen(group) ? (char *)group : NULL;
1341 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1343 struct vde_open_args args = {
1345 .group = init_group,
1349 s = qemu_mallocz(sizeof(VDEState));
1350 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
1355 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
1356 NULL, vde_cleanup, s);
1357 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1358 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1359 sock, vde_datafd(s->vde));
1364 /* network connection */
1365 typedef struct NetSocketState {
1366 VLANClientState *vc;
1368 int state; /* 0 = getting length, 1 = getting data */
1370 unsigned int packet_len;
1372 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1375 typedef struct NetSocketListenState {
1380 } NetSocketListenState;
1382 /* XXX: we consider we can send the whole packet without blocking */
1383 static void net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1385 NetSocketState *s = vc->opaque;
1389 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1390 send_all(s->fd, buf, size);
1393 static void net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
1395 NetSocketState *s = vc->opaque;
1396 sendto(s->fd, buf, size, 0,
1397 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1400 static void net_socket_send(void *opaque)
1402 NetSocketState *s = opaque;
1408 size = recv(s->fd, buf1, sizeof(buf1), 0);
1410 err = socket_error();
1411 if (err != EWOULDBLOCK)
1413 } else if (size == 0) {
1414 /* end of connection */
1416 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1422 /* reassemble a packet from the network */
1428 memcpy(s->buf + s->index, buf, l);
1432 if (s->index == 4) {
1434 s->packet_len = ntohl(*(uint32_t *)s->buf);
1440 l = s->packet_len - s->index;
1443 if (s->index + l <= sizeof(s->buf)) {
1444 memcpy(s->buf + s->index, buf, l);
1446 fprintf(stderr, "serious error: oversized packet received,"
1447 "connection terminated.\n");
1455 if (s->index >= s->packet_len) {
1456 qemu_send_packet(s->vc, s->buf, s->packet_len);
1465 static void net_socket_send_dgram(void *opaque)
1467 NetSocketState *s = opaque;
1470 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1474 /* end of connection */
1475 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1478 qemu_send_packet(s->vc, s->buf, size);
1481 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1486 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1487 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1488 inet_ntoa(mcastaddr->sin_addr),
1489 (int)ntohl(mcastaddr->sin_addr.s_addr));
1493 fd = socket(PF_INET, SOCK_DGRAM, 0);
1495 perror("socket(PF_INET, SOCK_DGRAM)");
1500 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1501 (const char *)&val, sizeof(val));
1503 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1507 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1513 /* Add host to multicast group */
1514 imr.imr_multiaddr = mcastaddr->sin_addr;
1515 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1517 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1518 (const char *)&imr, sizeof(struct ip_mreq));
1520 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1524 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1526 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1527 (const char *)&val, sizeof(val));
1529 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1533 socket_set_nonblock(fd);
1541 static void net_socket_cleanup(VLANClientState *vc)
1543 NetSocketState *s = vc->opaque;
1544 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1549 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1552 int fd, int is_connected)
1554 struct sockaddr_in saddr;
1556 socklen_t saddr_len;
1559 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1560 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1561 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1565 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1567 if (saddr.sin_addr.s_addr==0) {
1568 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1572 /* clone dgram socket */
1573 newfd = net_socket_mcast_create(&saddr);
1575 /* error already reported by net_socket_mcast_create() */
1579 /* clone newfd to fd, close newfd */
1584 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1585 fd, strerror(errno));
1590 s = qemu_mallocz(sizeof(NetSocketState));
1593 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
1594 NULL, net_socket_cleanup, s);
1595 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1597 /* mcast: save bound address as dst */
1598 if (is_connected) s->dgram_dst=saddr;
1600 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1601 "socket: fd=%d (%s mcast=%s:%d)",
1602 fd, is_connected? "cloned" : "",
1603 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1607 static void net_socket_connect(void *opaque)
1609 NetSocketState *s = opaque;
1610 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1613 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1616 int fd, int is_connected)
1619 s = qemu_mallocz(sizeof(NetSocketState));
1621 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
1622 NULL, net_socket_cleanup, s);
1623 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1624 "socket: fd=%d", fd);
1626 net_socket_connect(s);
1628 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1633 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1634 const char *model, const char *name,
1635 int fd, int is_connected)
1637 int so_type=-1, optlen=sizeof(so_type);
1639 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1640 (socklen_t *)&optlen)< 0) {
1641 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1646 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1648 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1650 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1651 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1652 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1657 static void net_socket_accept(void *opaque)
1659 NetSocketListenState *s = opaque;
1661 struct sockaddr_in saddr;
1666 len = sizeof(saddr);
1667 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1668 if (fd < 0 && errno != EINTR) {
1670 } else if (fd >= 0) {
1674 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1678 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1679 "socket: connection from %s:%d",
1680 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1684 static int net_socket_listen_init(VLANState *vlan,
1687 const char *host_str)
1689 NetSocketListenState *s;
1691 struct sockaddr_in saddr;
1693 if (parse_host_port(&saddr, host_str) < 0)
1696 s = qemu_mallocz(sizeof(NetSocketListenState));
1698 fd = socket(PF_INET, SOCK_STREAM, 0);
1703 socket_set_nonblock(fd);
1705 /* allow fast reuse */
1707 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1709 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1714 ret = listen(fd, 0);
1720 s->model = strdup(model);
1721 s->name = name ? strdup(name) : NULL;
1723 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1727 static int net_socket_connect_init(VLANState *vlan,
1730 const char *host_str)
1733 int fd, connected, ret, err;
1734 struct sockaddr_in saddr;
1736 if (parse_host_port(&saddr, host_str) < 0)
1739 fd = socket(PF_INET, SOCK_STREAM, 0);
1744 socket_set_nonblock(fd);
1748 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1750 err = socket_error();
1751 if (err == EINTR || err == EWOULDBLOCK) {
1752 } else if (err == EINPROGRESS) {
1755 } else if (err == WSAEALREADY) {
1768 s = net_socket_fd_init(vlan, model, name, fd, connected);
1771 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1772 "socket: connect to %s:%d",
1773 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1777 static int net_socket_mcast_init(VLANState *vlan,
1780 const char *host_str)
1784 struct sockaddr_in saddr;
1786 if (parse_host_port(&saddr, host_str) < 0)
1790 fd = net_socket_mcast_create(&saddr);
1794 s = net_socket_fd_init(vlan, model, name, fd, 0);
1798 s->dgram_dst = saddr;
1800 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1801 "socket: mcast=%s:%d",
1802 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1807 typedef struct DumpState {
1808 VLANClientState *pcap_vc;
1813 #define PCAP_MAGIC 0xa1b2c3d4
1815 struct pcap_file_hdr {
1817 uint16_t version_major;
1818 uint16_t version_minor;
1825 struct pcap_sf_pkthdr {
1834 static void dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1836 DumpState *s = vc->opaque;
1837 struct pcap_sf_pkthdr hdr;
1841 /* Early return in case of previous error. */
1846 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
1847 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1849 hdr.ts.tv_sec = ts / 1000000;
1850 hdr.ts.tv_usec = ts % 1000000;
1851 hdr.caplen = caplen;
1853 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
1854 write(s->fd, buf, caplen) != caplen) {
1855 qemu_log("-net dump write error - stop dump\n");
1861 static void net_dump_cleanup(VLANClientState *vc)
1863 DumpState *s = vc->opaque;
1869 static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
1870 const char *name, const char *filename, int len)
1872 struct pcap_file_hdr hdr;
1875 s = qemu_malloc(sizeof(DumpState));
1877 s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
1879 config_error(mon, "-net dump: can't open %s\n", filename);
1883 s->pcap_caplen = len;
1885 hdr.magic = PCAP_MAGIC;
1886 hdr.version_major = 2;
1887 hdr.version_minor = 4;
1890 hdr.snaplen = s->pcap_caplen;
1893 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
1894 config_error(mon, "-net dump write error: %s\n", strerror(errno));
1900 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL,
1901 net_dump_cleanup, s);
1902 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
1903 "dump to %s (len=%d)", filename, len);
1907 /* find or alloc a new VLAN */
1908 VLANState *qemu_find_vlan(int id)
1910 VLANState **pvlan, *vlan;
1911 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1915 vlan = qemu_mallocz(sizeof(VLANState));
1918 pvlan = &first_vlan;
1919 while (*pvlan != NULL)
1920 pvlan = &(*pvlan)->next;
1925 static int nic_get_free_idx(void)
1929 for (index = 0; index < MAX_NICS; index++)
1930 if (!nd_table[index].used)
1935 void qemu_check_nic_model(NICInfo *nd, const char *model)
1937 const char *models[2];
1942 qemu_check_nic_model_list(nd, models, model);
1945 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
1946 const char *default_model)
1948 int i, exit_status = 0;
1951 nd->model = strdup(default_model);
1953 if (strcmp(nd->model, "?") != 0) {
1954 for (i = 0 ; models[i]; i++)
1955 if (strcmp(nd->model, models[i]) == 0)
1958 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
1962 fprintf(stderr, "qemu: Supported NIC models: ");
1963 for (i = 0 ; models[i]; i++)
1964 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
1969 int net_client_init(Monitor *mon, const char *device, const char *p)
1971 static const char * const fd_params[] = {
1972 "vlan", "name", "fd", NULL
1980 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1981 vlan_id = strtol(buf, NULL, 0);
1983 vlan = qemu_find_vlan(vlan_id);
1985 if (get_param_value(buf, sizeof(buf), "name", p)) {
1986 name = qemu_strdup(buf);
1988 if (!strcmp(device, "nic")) {
1989 static const char * const nic_params[] = {
1990 "vlan", "name", "macaddr", "model", NULL
1994 int idx = nic_get_free_idx();
1996 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
1997 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2001 if (idx == -1 || nb_nics >= MAX_NICS) {
2002 config_error(mon, "Too Many NICs\n");
2006 nd = &nd_table[idx];
2007 macaddr = nd->macaddr;
2013 macaddr[5] = 0x56 + idx;
2015 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
2016 if (parse_macaddr(macaddr, buf) < 0) {
2017 config_error(mon, "invalid syntax for ethernet address\n");
2022 if (get_param_value(buf, sizeof(buf), "model", p)) {
2023 nd->model = strdup(buf);
2030 vlan->nb_guest_devs++;
2033 if (!strcmp(device, "none")) {
2035 config_error(mon, "'none' takes no parameters\n");
2039 /* does nothing. It is needed to signal that no network cards
2044 if (!strcmp(device, "user")) {
2045 static const char * const slirp_params[] = {
2046 "vlan", "name", "hostname", "restrict", "ip", NULL
2051 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
2052 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2056 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
2057 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
2059 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
2060 restricted = (buf[0] == 'y') ? 1 : 0;
2062 if (get_param_value(buf, sizeof(buf), "ip", p)) {
2063 ip = qemu_strdup(buf);
2065 vlan->nb_host_devs++;
2066 ret = net_slirp_init(vlan, device, name, restricted, ip);
2068 } else if (!strcmp(device, "channel")) {
2070 char name[20], *devname;
2071 struct VMChannel *vmc;
2073 port = strtol(p, &devname, 10);
2075 if (port < 1 || port > 65535) {
2076 config_error(mon, "vmchannel wrong port number\n");
2080 vmc = malloc(sizeof(struct VMChannel));
2081 snprintf(name, 20, "vmchannel%ld", port);
2082 vmc->hd = qemu_chr_open(name, devname, NULL);
2084 config_error(mon, "could not open vmchannel device '%s'\n",
2090 slirp_add_exec(3, vmc->hd, 4, port);
2091 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
2097 if (!strcmp(device, "tap")) {
2098 static const char * const tap_params[] = {
2099 "vlan", "name", "ifname", NULL
2103 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
2104 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2108 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2109 config_error(mon, "tap: no interface name\n");
2113 vlan->nb_host_devs++;
2114 ret = tap_win32_init(vlan, device, name, ifname);
2116 #elif defined (_AIX)
2118 if (!strcmp(device, "tap")) {
2119 char ifname[64], chkbuf[64];
2120 char setup_script[1024], down_script[1024];
2122 vlan->nb_host_devs++;
2123 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2124 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2125 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2129 fd = strtol(buf, NULL, 0);
2130 fcntl(fd, F_SETFL, O_NONBLOCK);
2131 net_tap_fd_init(vlan, device, name, fd);
2134 static const char * const tap_params[] = {
2135 "vlan", "name", "ifname", "script", "downscript", NULL
2137 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
2138 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2142 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2145 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2146 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2148 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2149 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2151 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2155 if (!strcmp(device, "socket")) {
2157 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2159 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2160 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2164 fd = strtol(buf, NULL, 0);
2166 if (net_socket_fd_init(vlan, device, name, fd, 1))
2168 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
2169 static const char * const listen_params[] = {
2170 "vlan", "name", "listen", NULL
2172 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
2173 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2177 ret = net_socket_listen_init(vlan, device, name, buf);
2178 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
2179 static const char * const connect_params[] = {
2180 "vlan", "name", "connect", NULL
2182 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
2183 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2187 ret = net_socket_connect_init(vlan, device, name, buf);
2188 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
2189 static const char * const mcast_params[] = {
2190 "vlan", "name", "mcast", NULL
2192 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
2193 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2197 ret = net_socket_mcast_init(vlan, device, name, buf);
2199 config_error(mon, "Unknown socket options: %s\n", p);
2203 vlan->nb_host_devs++;
2206 if (!strcmp(device, "vde")) {
2207 static const char * const vde_params[] = {
2208 "vlan", "name", "sock", "port", "group", "mode", NULL
2210 char vde_sock[1024], vde_group[512];
2211 int vde_port, vde_mode;
2213 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
2214 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2218 vlan->nb_host_devs++;
2219 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2222 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2223 vde_port = strtol(buf, NULL, 10);
2227 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2228 vde_group[0] = '\0';
2230 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2231 vde_mode = strtol(buf, NULL, 8);
2235 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2238 if (!strcmp(device, "dump")) {
2241 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2242 len = strtol(buf, NULL, 0);
2244 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2245 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2247 ret = net_dump_init(mon, vlan, device, name, buf, len);
2249 config_error(mon, "Unknown network device: %s\n", device);
2254 config_error(mon, "Could not initialize device '%s'\n", device);
2261 void net_client_uninit(NICInfo *nd)
2263 nd->vlan->nb_guest_devs--;
2266 free((void *)nd->model);
2269 static int net_host_check_device(const char *device)
2272 const char *valid_param_list[] = { "tap", "socket", "dump"
2280 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2281 if (!strncmp(valid_param_list[i], device,
2282 strlen(valid_param_list[i])))
2289 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2291 if (!net_host_check_device(device)) {
2292 monitor_printf(mon, "invalid host network device %s\n", device);
2295 if (net_client_init(mon, device, opts ? opts : "") < 0) {
2296 monitor_printf(mon, "adding host network device %s failed\n", device);
2300 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2303 VLANClientState *vc;
2305 vlan = qemu_find_vlan(vlan_id);
2307 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2308 if (!strcmp(vc->name, device)) {
2314 monitor_printf(mon, "can't find device %s\n", device);
2317 if (!net_host_check_device(vc->model)) {
2318 monitor_printf(mon, "invalid host network device %s\n", device);
2321 qemu_del_vlan_client(vc);
2324 int net_client_parse(const char *str)
2332 while (*p != '\0' && *p != ',') {
2333 if ((q - device) < sizeof(device) - 1)
2341 return net_client_init(NULL, device, p);
2344 void do_info_network(Monitor *mon)
2347 VLANClientState *vc;
2349 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2350 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2351 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2352 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2356 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2359 VLANClientState *vc = NULL;
2361 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2362 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2363 if (strcmp(vc->name, name) == 0)
2368 monitor_printf(mon, "could not find network device '%s'", name);
2372 if (strcmp(up_or_down, "up") == 0)
2374 else if (strcmp(up_or_down, "down") == 0)
2377 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2378 "valid\n", up_or_down);
2380 if (vc->link_status_changed)
2381 vc->link_status_changed(vc);
2386 void net_cleanup(void)
2390 /* close network clients */
2391 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2392 VLANClientState *vc = vlan->first_client;
2395 VLANClientState *next = vc->next;
2397 qemu_del_vlan_client(vc);
2404 void net_client_check(void)
2408 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2409 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2411 if (vlan->nb_guest_devs == 0)
2412 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2413 if (vlan->nb_host_devs == 0)
2415 "Warning: vlan %d is not connected to host network\n",