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)) {
955 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
960 sbuf.maxlen = maxlen;
961 sbuf.buf = (char *)buf;
963 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
966 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
968 return read(tapfd, buf, maxlen);
972 static void tap_send(void *opaque)
974 TAPState *s = opaque;
978 size = tap_read_packet(s->fd, buf, sizeof(buf));
980 qemu_send_packet(s->vc, buf, size);
984 static void tap_cleanup(VLANClientState *vc)
986 TAPState *s = vc->opaque;
988 if (s->down_script[0])
989 launch_script(s->down_script, s->down_script_arg, s->fd);
991 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
998 static TAPState *net_tap_fd_init(VLANState *vlan,
1005 s = qemu_mallocz(sizeof(TAPState));
1007 s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive,
1008 NULL, tap_cleanup, s);
1009 s->vc->fd_readv = tap_receive_iov;
1010 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
1011 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
1015 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1016 static int tap_open(char *ifname, int ifname_size)
1022 TFR(fd = open("/dev/tap", O_RDWR));
1024 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1029 dev = devname(s.st_rdev, S_IFCHR);
1030 pstrcpy(ifname, ifname_size, dev);
1032 fcntl(fd, F_SETFL, O_NONBLOCK);
1035 #elif defined(__sun__)
1036 #define TUNNEWPPA (('T'<<16) | 0x0001)
1038 * Allocate TAP device, returns opened fd.
1039 * Stores dev name in the first arg(must be large enough).
1041 static int tap_alloc(char *dev, size_t dev_size)
1043 int tap_fd, if_fd, ppa = -1;
1044 static int ip_fd = 0;
1047 static int arp_fd = 0;
1048 int ip_muxid, arp_muxid;
1049 struct strioctl strioc_if, strioc_ppa;
1050 int link_type = I_PLINK;;
1052 char actual_name[32] = "";
1054 memset(&ifr, 0x0, sizeof(ifr));
1058 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
1062 /* Check if IP device was opened */
1066 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1068 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1072 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1074 syslog(LOG_ERR, "Can't open /dev/tap");
1078 /* Assign a new PPA and get its unit number. */
1079 strioc_ppa.ic_cmd = TUNNEWPPA;
1080 strioc_ppa.ic_timout = 0;
1081 strioc_ppa.ic_len = sizeof(ppa);
1082 strioc_ppa.ic_dp = (char *)&ppa;
1083 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1084 syslog (LOG_ERR, "Can't assign new interface");
1086 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1088 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1091 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1092 syslog(LOG_ERR, "Can't push IP module");
1096 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1097 syslog(LOG_ERR, "Can't get flags\n");
1099 snprintf (actual_name, 32, "tap%d", ppa);
1100 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1103 /* Assign ppa according to the unit number returned by tun device */
1105 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1106 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1107 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1108 syslog (LOG_ERR, "Can't get flags\n");
1109 /* Push arp module to if_fd */
1110 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1111 syslog (LOG_ERR, "Can't push ARP module (2)");
1113 /* Push arp module to ip_fd */
1114 if (ioctl (ip_fd, I_POP, NULL) < 0)
1115 syslog (LOG_ERR, "I_POP failed\n");
1116 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1117 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1119 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1121 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1123 /* Set ifname to arp */
1124 strioc_if.ic_cmd = SIOCSLIFNAME;
1125 strioc_if.ic_timout = 0;
1126 strioc_if.ic_len = sizeof(ifr);
1127 strioc_if.ic_dp = (char *)𝔦
1128 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1129 syslog (LOG_ERR, "Can't set ifname to arp\n");
1132 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1133 syslog(LOG_ERR, "Can't link TAP device to IP");
1137 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1138 syslog (LOG_ERR, "Can't link TAP device to ARP");
1142 memset(&ifr, 0x0, sizeof(ifr));
1143 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1144 ifr.lifr_ip_muxid = ip_muxid;
1145 ifr.lifr_arp_muxid = arp_muxid;
1147 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1149 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1150 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1151 syslog (LOG_ERR, "Can't set multiplexor id");
1154 snprintf(dev, dev_size, "tap%d", ppa);
1158 static int tap_open(char *ifname, int ifname_size)
1162 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1163 fprintf(stderr, "Cannot allocate TAP device\n");
1166 pstrcpy(ifname, ifname_size, dev);
1167 fcntl(fd, F_SETFL, O_NONBLOCK);
1170 #elif defined (_AIX)
1171 static int tap_open(char *ifname, int ifname_size)
1173 fprintf (stderr, "no tap on AIX\n");
1177 static int tap_open(char *ifname, int ifname_size)
1182 TFR(fd = open("/dev/net/tun", O_RDWR));
1184 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1187 memset(&ifr, 0, sizeof(ifr));
1188 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1189 if (ifname[0] != '\0')
1190 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1192 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1193 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1195 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1199 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1200 fcntl(fd, F_SETFL, O_NONBLOCK);
1205 static int launch_script(const char *setup_script, const char *ifname, int fd)
1207 sigset_t oldmask, mask;
1213 sigaddset(&mask, SIGCHLD);
1214 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1216 /* try to launch network script */
1219 int open_max = sysconf(_SC_OPEN_MAX), i;
1221 for (i = 0; i < open_max; i++) {
1222 if (i != STDIN_FILENO &&
1223 i != STDOUT_FILENO &&
1224 i != STDERR_FILENO &&
1230 *parg++ = (char *)setup_script;
1231 *parg++ = (char *)ifname;
1233 execv(setup_script, args);
1235 } else if (pid > 0) {
1236 while (waitpid(pid, &status, 0) != pid) {
1239 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1241 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1245 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1249 static int net_tap_init(VLANState *vlan, const char *model,
1250 const char *name, const char *ifname1,
1251 const char *setup_script, const char *down_script)
1257 if (ifname1 != NULL)
1258 pstrcpy(ifname, sizeof(ifname), ifname1);
1261 TFR(fd = tap_open(ifname, sizeof(ifname)));
1265 if (!setup_script || !strcmp(setup_script, "no"))
1267 if (setup_script[0] != '\0') {
1268 if (launch_script(setup_script, ifname, fd))
1271 s = net_tap_fd_init(vlan, model, name, fd);
1272 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1273 "ifname=%s,script=%s,downscript=%s",
1274 ifname, setup_script, down_script);
1275 if (down_script && strcmp(down_script, "no")) {
1276 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1277 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1282 #endif /* !_WIN32 */
1284 #if defined(CONFIG_VDE)
1285 typedef struct VDEState {
1286 VLANClientState *vc;
1290 static void vde_to_qemu(void *opaque)
1292 VDEState *s = opaque;
1296 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
1298 qemu_send_packet(s->vc, buf, size);
1302 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
1304 VDEState *s = opaque;
1307 ret = vde_send(s->vde, (const char *)buf, size, 0);
1308 if (ret < 0 && errno == EINTR) {
1315 static void vde_cleanup(VLANClientState *vc)
1317 VDEState *s = vc->opaque;
1318 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1323 static int net_vde_init(VLANState *vlan, const char *model,
1324 const char *name, const char *sock,
1325 int port, const char *group, int mode)
1328 char *init_group = strlen(group) ? (char *)group : NULL;
1329 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1331 struct vde_open_args args = {
1333 .group = init_group,
1337 s = qemu_mallocz(sizeof(VDEState));
1338 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
1343 s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu,
1344 NULL, vde_cleanup, s);
1345 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1346 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1347 sock, vde_datafd(s->vde));
1352 /* network connection */
1353 typedef struct NetSocketState {
1354 VLANClientState *vc;
1356 int state; /* 0 = getting length, 1 = getting data */
1358 unsigned int packet_len;
1360 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1363 typedef struct NetSocketListenState {
1368 } NetSocketListenState;
1370 /* XXX: we consider we can send the whole packet without blocking */
1371 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
1373 NetSocketState *s = opaque;
1377 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1378 send_all(s->fd, buf, size);
1381 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
1383 NetSocketState *s = opaque;
1384 sendto(s->fd, buf, size, 0,
1385 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1388 static void net_socket_send(void *opaque)
1390 NetSocketState *s = opaque;
1396 size = recv(s->fd, buf1, sizeof(buf1), 0);
1398 err = socket_error();
1399 if (err != EWOULDBLOCK)
1401 } else if (size == 0) {
1402 /* end of connection */
1404 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1410 /* reassemble a packet from the network */
1416 memcpy(s->buf + s->index, buf, l);
1420 if (s->index == 4) {
1422 s->packet_len = ntohl(*(uint32_t *)s->buf);
1428 l = s->packet_len - s->index;
1431 if (s->index + l <= sizeof(s->buf)) {
1432 memcpy(s->buf + s->index, buf, l);
1434 fprintf(stderr, "serious error: oversized packet received,"
1435 "connection terminated.\n");
1443 if (s->index >= s->packet_len) {
1444 qemu_send_packet(s->vc, s->buf, s->packet_len);
1453 static void net_socket_send_dgram(void *opaque)
1455 NetSocketState *s = opaque;
1458 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1462 /* end of connection */
1463 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1466 qemu_send_packet(s->vc, s->buf, size);
1469 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1474 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1475 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1476 inet_ntoa(mcastaddr->sin_addr),
1477 (int)ntohl(mcastaddr->sin_addr.s_addr));
1481 fd = socket(PF_INET, SOCK_DGRAM, 0);
1483 perror("socket(PF_INET, SOCK_DGRAM)");
1488 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1489 (const char *)&val, sizeof(val));
1491 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1495 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1501 /* Add host to multicast group */
1502 imr.imr_multiaddr = mcastaddr->sin_addr;
1503 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1505 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1506 (const char *)&imr, sizeof(struct ip_mreq));
1508 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1512 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1514 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1515 (const char *)&val, sizeof(val));
1517 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1521 socket_set_nonblock(fd);
1529 static void net_socket_cleanup(VLANClientState *vc)
1531 NetSocketState *s = vc->opaque;
1532 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1537 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1540 int fd, int is_connected)
1542 struct sockaddr_in saddr;
1544 socklen_t saddr_len;
1547 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1548 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1549 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1553 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1555 if (saddr.sin_addr.s_addr==0) {
1556 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1560 /* clone dgram socket */
1561 newfd = net_socket_mcast_create(&saddr);
1563 /* error already reported by net_socket_mcast_create() */
1567 /* clone newfd to fd, close newfd */
1572 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1573 fd, strerror(errno));
1578 s = qemu_mallocz(sizeof(NetSocketState));
1581 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram,
1582 NULL, net_socket_cleanup, s);
1583 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1585 /* mcast: save bound address as dst */
1586 if (is_connected) s->dgram_dst=saddr;
1588 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1589 "socket: fd=%d (%s mcast=%s:%d)",
1590 fd, is_connected? "cloned" : "",
1591 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1595 static void net_socket_connect(void *opaque)
1597 NetSocketState *s = opaque;
1598 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1601 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1604 int fd, int is_connected)
1607 s = qemu_mallocz(sizeof(NetSocketState));
1609 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive,
1610 NULL, net_socket_cleanup, s);
1611 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1612 "socket: fd=%d", fd);
1614 net_socket_connect(s);
1616 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1621 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1622 const char *model, const char *name,
1623 int fd, int is_connected)
1625 int so_type=-1, optlen=sizeof(so_type);
1627 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1628 (socklen_t *)&optlen)< 0) {
1629 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1634 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1636 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1638 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1639 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1640 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1645 static void net_socket_accept(void *opaque)
1647 NetSocketListenState *s = opaque;
1649 struct sockaddr_in saddr;
1654 len = sizeof(saddr);
1655 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1656 if (fd < 0 && errno != EINTR) {
1658 } else if (fd >= 0) {
1662 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1666 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1667 "socket: connection from %s:%d",
1668 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1672 static int net_socket_listen_init(VLANState *vlan,
1675 const char *host_str)
1677 NetSocketListenState *s;
1679 struct sockaddr_in saddr;
1681 if (parse_host_port(&saddr, host_str) < 0)
1684 s = qemu_mallocz(sizeof(NetSocketListenState));
1686 fd = socket(PF_INET, SOCK_STREAM, 0);
1691 socket_set_nonblock(fd);
1693 /* allow fast reuse */
1695 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1697 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1702 ret = listen(fd, 0);
1708 s->model = strdup(model);
1709 s->name = name ? strdup(name) : NULL;
1711 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1715 static int net_socket_connect_init(VLANState *vlan,
1718 const char *host_str)
1721 int fd, connected, ret, err;
1722 struct sockaddr_in saddr;
1724 if (parse_host_port(&saddr, host_str) < 0)
1727 fd = socket(PF_INET, SOCK_STREAM, 0);
1732 socket_set_nonblock(fd);
1736 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1738 err = socket_error();
1739 if (err == EINTR || err == EWOULDBLOCK) {
1740 } else if (err == EINPROGRESS) {
1743 } else if (err == WSAEALREADY) {
1756 s = net_socket_fd_init(vlan, model, name, fd, connected);
1759 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1760 "socket: connect to %s:%d",
1761 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1765 static int net_socket_mcast_init(VLANState *vlan,
1768 const char *host_str)
1772 struct sockaddr_in saddr;
1774 if (parse_host_port(&saddr, host_str) < 0)
1778 fd = net_socket_mcast_create(&saddr);
1782 s = net_socket_fd_init(vlan, model, name, fd, 0);
1786 s->dgram_dst = saddr;
1788 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1789 "socket: mcast=%s:%d",
1790 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1795 typedef struct DumpState {
1796 VLANClientState *pcap_vc;
1801 #define PCAP_MAGIC 0xa1b2c3d4
1803 struct pcap_file_hdr {
1805 uint16_t version_major;
1806 uint16_t version_minor;
1813 struct pcap_sf_pkthdr {
1822 static void dump_receive(void *opaque, const uint8_t *buf, int size)
1824 DumpState *s = opaque;
1825 struct pcap_sf_pkthdr hdr;
1829 /* Early return in case of previous error. */
1834 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
1835 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1837 hdr.ts.tv_sec = ts / 1000000;
1838 hdr.ts.tv_usec = ts % 1000000;
1839 hdr.caplen = caplen;
1841 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
1842 write(s->fd, buf, caplen) != caplen) {
1843 qemu_log("-net dump write error - stop dump\n");
1849 static void net_dump_cleanup(VLANClientState *vc)
1851 DumpState *s = vc->opaque;
1857 static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
1858 const char *name, const char *filename, int len)
1860 struct pcap_file_hdr hdr;
1863 s = qemu_malloc(sizeof(DumpState));
1865 s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
1867 config_error(mon, "-net dump: can't open %s\n", filename);
1871 s->pcap_caplen = len;
1873 hdr.magic = PCAP_MAGIC;
1874 hdr.version_major = 2;
1875 hdr.version_minor = 4;
1878 hdr.snaplen = s->pcap_caplen;
1881 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
1882 config_error(mon, "-net dump write error: %s\n", strerror(errno));
1888 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, dump_receive, NULL,
1889 net_dump_cleanup, s);
1890 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
1891 "dump to %s (len=%d)", filename, len);
1895 /* find or alloc a new VLAN */
1896 VLANState *qemu_find_vlan(int id)
1898 VLANState **pvlan, *vlan;
1899 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1903 vlan = qemu_mallocz(sizeof(VLANState));
1906 pvlan = &first_vlan;
1907 while (*pvlan != NULL)
1908 pvlan = &(*pvlan)->next;
1913 static int nic_get_free_idx(void)
1917 for (index = 0; index < MAX_NICS; index++)
1918 if (!nd_table[index].used)
1923 void qemu_check_nic_model(NICInfo *nd, const char *model)
1925 const char *models[2];
1930 qemu_check_nic_model_list(nd, models, model);
1933 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
1934 const char *default_model)
1936 int i, exit_status = 0;
1939 nd->model = strdup(default_model);
1941 if (strcmp(nd->model, "?") != 0) {
1942 for (i = 0 ; models[i]; i++)
1943 if (strcmp(nd->model, models[i]) == 0)
1946 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
1950 fprintf(stderr, "qemu: Supported NIC models: ");
1951 for (i = 0 ; models[i]; i++)
1952 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
1957 int net_client_init(Monitor *mon, const char *device, const char *p)
1959 static const char * const fd_params[] = {
1960 "vlan", "name", "fd", NULL
1968 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1969 vlan_id = strtol(buf, NULL, 0);
1971 vlan = qemu_find_vlan(vlan_id);
1973 if (get_param_value(buf, sizeof(buf), "name", p)) {
1974 name = qemu_strdup(buf);
1976 if (!strcmp(device, "nic")) {
1977 static const char * const nic_params[] = {
1978 "vlan", "name", "macaddr", "model", NULL
1982 int idx = nic_get_free_idx();
1984 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
1985 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
1989 if (idx == -1 || nb_nics >= MAX_NICS) {
1990 config_error(mon, "Too Many NICs\n");
1994 nd = &nd_table[idx];
1995 macaddr = nd->macaddr;
2001 macaddr[5] = 0x56 + idx;
2003 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
2004 if (parse_macaddr(macaddr, buf) < 0) {
2005 config_error(mon, "invalid syntax for ethernet address\n");
2010 if (get_param_value(buf, sizeof(buf), "model", p)) {
2011 nd->model = strdup(buf);
2018 vlan->nb_guest_devs++;
2021 if (!strcmp(device, "none")) {
2023 config_error(mon, "'none' takes no parameters\n");
2027 /* does nothing. It is needed to signal that no network cards
2032 if (!strcmp(device, "user")) {
2033 static const char * const slirp_params[] = {
2034 "vlan", "name", "hostname", "restrict", "ip", NULL
2039 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
2040 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2044 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
2045 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
2047 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
2048 restricted = (buf[0] == 'y') ? 1 : 0;
2050 if (get_param_value(buf, sizeof(buf), "ip", p)) {
2051 ip = qemu_strdup(buf);
2053 vlan->nb_host_devs++;
2054 ret = net_slirp_init(vlan, device, name, restricted, ip);
2056 } else if (!strcmp(device, "channel")) {
2058 char name[20], *devname;
2059 struct VMChannel *vmc;
2061 port = strtol(p, &devname, 10);
2063 if (port < 1 || port > 65535) {
2064 config_error(mon, "vmchannel wrong port number\n");
2068 vmc = malloc(sizeof(struct VMChannel));
2069 snprintf(name, 20, "vmchannel%ld", port);
2070 vmc->hd = qemu_chr_open(name, devname, NULL);
2072 config_error(mon, "could not open vmchannel device '%s'\n",
2078 slirp_add_exec(3, vmc->hd, 4, port);
2079 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
2085 if (!strcmp(device, "tap")) {
2086 static const char * const tap_params[] = {
2087 "vlan", "name", "ifname", NULL
2091 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
2092 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2096 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2097 config_error(mon, "tap: no interface name\n");
2101 vlan->nb_host_devs++;
2102 ret = tap_win32_init(vlan, device, name, ifname);
2104 #elif defined (_AIX)
2106 if (!strcmp(device, "tap")) {
2107 char ifname[64], chkbuf[64];
2108 char setup_script[1024], down_script[1024];
2110 vlan->nb_host_devs++;
2111 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2112 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2113 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2117 fd = strtol(buf, NULL, 0);
2118 fcntl(fd, F_SETFL, O_NONBLOCK);
2119 net_tap_fd_init(vlan, device, name, fd);
2122 static const char * const tap_params[] = {
2123 "vlan", "name", "ifname", "script", "downscript", NULL
2125 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
2126 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2130 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2133 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2134 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2136 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2137 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2139 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2143 if (!strcmp(device, "socket")) {
2145 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2147 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2148 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2152 fd = strtol(buf, NULL, 0);
2154 if (net_socket_fd_init(vlan, device, name, fd, 1))
2156 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
2157 static const char * const listen_params[] = {
2158 "vlan", "name", "listen", NULL
2160 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
2161 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2165 ret = net_socket_listen_init(vlan, device, name, buf);
2166 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
2167 static const char * const connect_params[] = {
2168 "vlan", "name", "connect", NULL
2170 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
2171 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2175 ret = net_socket_connect_init(vlan, device, name, buf);
2176 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
2177 static const char * const mcast_params[] = {
2178 "vlan", "name", "mcast", NULL
2180 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
2181 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2185 ret = net_socket_mcast_init(vlan, device, name, buf);
2187 config_error(mon, "Unknown socket options: %s\n", p);
2191 vlan->nb_host_devs++;
2194 if (!strcmp(device, "vde")) {
2195 static const char * const vde_params[] = {
2196 "vlan", "name", "sock", "port", "group", "mode", NULL
2198 char vde_sock[1024], vde_group[512];
2199 int vde_port, vde_mode;
2201 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
2202 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2206 vlan->nb_host_devs++;
2207 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2210 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2211 vde_port = strtol(buf, NULL, 10);
2215 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2216 vde_group[0] = '\0';
2218 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2219 vde_mode = strtol(buf, NULL, 8);
2223 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2226 if (!strcmp(device, "dump")) {
2229 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2230 len = strtol(buf, NULL, 0);
2232 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2233 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2235 ret = net_dump_init(mon, vlan, device, name, buf, len);
2237 config_error(mon, "Unknown network device: %s\n", device);
2242 config_error(mon, "Could not initialize device '%s'\n", device);
2249 void net_client_uninit(NICInfo *nd)
2251 nd->vlan->nb_guest_devs--;
2254 free((void *)nd->model);
2257 static int net_host_check_device(const char *device)
2260 const char *valid_param_list[] = { "tap", "socket", "dump"
2268 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2269 if (!strncmp(valid_param_list[i], device,
2270 strlen(valid_param_list[i])))
2277 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2279 if (!net_host_check_device(device)) {
2280 monitor_printf(mon, "invalid host network device %s\n", device);
2283 if (net_client_init(mon, device, opts ? opts : "") < 0) {
2284 monitor_printf(mon, "adding host network device %s failed\n", device);
2288 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2291 VLANClientState *vc;
2293 vlan = qemu_find_vlan(vlan_id);
2295 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2296 if (!strcmp(vc->name, device)) {
2302 monitor_printf(mon, "can't find device %s\n", device);
2305 if (!net_host_check_device(vc->model)) {
2306 monitor_printf(mon, "invalid host network device %s\n", device);
2309 qemu_del_vlan_client(vc);
2312 int net_client_parse(const char *str)
2320 while (*p != '\0' && *p != ',') {
2321 if ((q - device) < sizeof(device) - 1)
2329 return net_client_init(NULL, device, p);
2332 void do_info_network(Monitor *mon)
2335 VLANClientState *vc;
2337 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2338 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2339 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2340 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2344 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2347 VLANClientState *vc = NULL;
2349 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2350 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2351 if (strcmp(vc->name, name) == 0)
2356 monitor_printf(mon, "could not find network device '%s'", name);
2360 if (strcmp(up_or_down, "up") == 0)
2362 else if (strcmp(up_or_down, "down") == 0)
2365 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2366 "valid\n", up_or_down);
2368 if (vc->link_status_changed)
2369 vc->link_status_changed(vc);
2374 void net_cleanup(void)
2378 /* close network clients */
2379 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2380 VLANClientState *vc = vlan->first_client;
2383 VLANClientState *next = vc->next;
2385 qemu_del_vlan_client(vc);
2392 void net_client_check(void)
2396 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2397 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2399 if (vlan->nb_guest_devs == 0)
2400 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2401 if (vlan->nb_host_devs == 0)
2403 "Warning: vlan %d is not connected to host network\n",