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 *sender)
394 VLANState *vlan = sender->vlan;
397 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
402 /* no fd_can_read() handler, they can always receive */
403 if (!vc->fd_can_read || vc->fd_can_read(vc->opaque)) {
411 qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size)
415 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
416 if (vc != sender && !vc->link_down) {
417 vc->fd_read(vc->opaque, buf, size);
422 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
424 VLANState *vlan = vc->vlan;
431 printf("vlan %d send:\n", vlan->id);
432 hex_dump(stdout, buf, size);
434 if (vlan->delivering) {
435 packet = qemu_malloc(sizeof(VLANPacket) + size);
436 packet->next = vlan->send_queue;
439 memcpy(packet->data, buf, size);
440 vlan->send_queue = packet;
442 vlan->delivering = 1;
443 qemu_deliver_packet(vc, buf, size);
444 while ((packet = vlan->send_queue) != NULL) {
445 vlan->send_queue = packet->next;
446 qemu_deliver_packet(packet->sender, packet->data, packet->size);
449 vlan->delivering = 0;
453 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
456 uint8_t buffer[4096];
460 for (i = 0; i < iovcnt; i++) {
463 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
464 memcpy(buffer + offset, iov[i].iov_base, len);
468 vc->fd_read(vc->opaque, buffer, offset);
473 static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
478 for (i = 0; i < iovcnt; i++)
479 offset += iov[i].iov_len;
483 ssize_t qemu_sendv_packet(VLANClientState *sender, const struct iovec *iov,
486 VLANState *vlan = sender->vlan;
492 if (sender->link_down)
493 return calc_iov_length(iov, iovcnt);
495 if (vlan->delivering) {
496 max_len = calc_iov_length(iov, iovcnt);
498 packet = qemu_malloc(sizeof(VLANPacket) + max_len);
499 packet->next = vlan->send_queue;
500 packet->sender = sender;
502 for (i = 0; i < iovcnt; i++) {
503 size_t len = iov[i].iov_len;
505 memcpy(packet->data + packet->size, iov[i].iov_base, len);
508 vlan->send_queue = packet;
510 vlan->delivering = 1;
512 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
519 len = calc_iov_length(iov, iovcnt);
520 } else if (vc->fd_readv) {
521 len = vc->fd_readv(vc->opaque, iov, iovcnt);
522 } else if (vc->fd_read) {
523 len = vc_sendv_compat(vc, iov, iovcnt);
525 max_len = MAX(max_len, len);
528 while ((packet = vlan->send_queue) != NULL) {
529 vlan->send_queue = packet->next;
530 qemu_deliver_packet(packet->sender, packet->data, packet->size);
533 vlan->delivering = 0;
539 static void config_error(Monitor *mon, const char *fmt, ...)
545 monitor_vprintf(mon, fmt, ap);
547 fprintf(stderr, "qemu: ");
548 vfprintf(stderr, fmt, ap);
554 #if defined(CONFIG_SLIRP)
556 /* slirp network adapter */
558 struct slirp_config_str {
559 struct slirp_config_str *next;
563 static int slirp_inited;
564 static struct slirp_config_str *slirp_redirs;
566 static const char *slirp_smb_export;
568 static VLANClientState *slirp_vc;
570 static void slirp_smb(const char *exported_dir);
571 static void slirp_redirection(Monitor *mon, const char *redir_str);
573 int slirp_can_output(void)
575 return !slirp_vc || qemu_can_send_packet(slirp_vc);
578 void slirp_output(const uint8_t *pkt, int pkt_len)
581 printf("slirp output:\n");
582 hex_dump(stdout, pkt, pkt_len);
586 qemu_send_packet(slirp_vc, pkt, pkt_len);
589 int slirp_is_inited(void)
594 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
597 printf("slirp input:\n");
598 hex_dump(stdout, buf, size);
600 slirp_input(buf, size);
603 static int slirp_in_use;
605 static void net_slirp_cleanup(VLANClientState *vc)
610 static int net_slirp_init(VLANState *vlan, const char *model, const char *name,
611 int restricted, const char *ip)
614 /* slirp only supports a single instance so far */
619 slirp_init(restricted, ip);
621 while (slirp_redirs) {
622 struct slirp_config_str *config = slirp_redirs;
624 slirp_redirection(NULL, config->str);
625 slirp_redirs = config->next;
629 if (slirp_smb_export) {
630 slirp_smb(slirp_smb_export);
635 slirp_vc = qemu_new_vlan_client(vlan, model, name, slirp_receive,
636 NULL, net_slirp_cleanup, NULL);
637 slirp_vc->info_str[0] = '\0';
642 static void net_slirp_redir_print(void *opaque, int is_udp,
643 struct in_addr *laddr, u_int lport,
644 struct in_addr *faddr, u_int fport)
646 Monitor *mon = (Monitor *)opaque;
651 h_addr = ntohl(faddr->s_addr);
652 g_addr = ntohl(laddr->s_addr);
654 monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" );
655 snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff,
656 (h_addr >> 16) & 0xff,
657 (h_addr >> 8) & 0xff,
659 monitor_printf(mon, " %15s |", buf);
660 monitor_printf(mon, " %5d |", fport);
662 snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff,
663 (g_addr >> 16) & 0xff,
664 (g_addr >> 8) & 0xff,
666 monitor_printf(mon, " %15s |", buf);
667 monitor_printf(mon, " %5d\n", lport);
671 static void net_slirp_redir_list(Monitor *mon)
676 monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
677 monitor_printf(mon, " | | | | \n");
678 slirp_redir_loop(net_slirp_redir_print, mon);
681 static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
685 const char *p = port_str;
692 if (!port_str || !port_str[0])
695 get_str_sep(buf, sizeof(buf), &p, ':');
697 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
699 } else if (!strcmp(buf, "udp")) {
707 n = slirp_redir_rm(is_udp, host_port);
709 monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
710 is_udp ? "udp" : "tcp", host_port);
714 monitor_printf(mon, "invalid format\n");
717 static void slirp_redirection(Monitor *mon, const char *redir_str)
719 struct in_addr guest_addr;
720 int host_port, guest_port;
726 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
729 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
731 } else if (!strcmp(buf, "udp")) {
737 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
740 host_port = strtol(buf, &r, 0);
745 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
748 if (buf[0] == '\0') {
749 pstrcpy(buf, sizeof(buf), "10.0.2.15");
751 if (!inet_aton(buf, &guest_addr)) {
755 guest_port = strtol(p, &r, 0);
760 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
761 config_error(mon, "could not set up redirection '%s'\n", redir_str);
766 config_error(mon, "invalid redirection format '%s'\n", redir_str);
769 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
771 struct slirp_config_str *config;
775 monitor_printf(mon, "user mode network stack not in use\n");
777 config = qemu_malloc(sizeof(*config));
778 config->str = redir_str;
779 config->next = slirp_redirs;
780 slirp_redirs = config;
785 if (!strcmp(redir_str, "remove")) {
786 net_slirp_redir_rm(mon, redir_opt2);
790 if (!strcmp(redir_str, "list")) {
791 net_slirp_redir_list(mon);
795 slirp_redirection(mon, redir_str);
800 static char smb_dir[1024];
802 static void erase_dir(char *dir_name)
808 /* erase all the files in the directory */
809 if ((d = opendir(dir_name)) != NULL) {
814 if (strcmp(de->d_name, ".") != 0 &&
815 strcmp(de->d_name, "..") != 0) {
816 snprintf(filename, sizeof(filename), "%s/%s",
817 smb_dir, de->d_name);
818 if (unlink(filename) != 0) /* is it a directory? */
827 /* automatic user mode samba server configuration */
828 static void smb_exit(void)
833 static void slirp_smb(const char *exported_dir)
836 char smb_cmdline[1024];
839 /* XXX: better tmp dir construction */
840 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
841 if (mkdir(smb_dir, 0700) < 0) {
842 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
845 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
847 f = fopen(smb_conf, "w");
849 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
856 "socket address=127.0.0.1\n"
858 "lock directory=%s\n"
859 "log file=%s/log.smbd\n"
860 "smb passwd file=%s/smbpasswd\n"
876 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
877 SMBD_COMMAND, smb_conf);
879 slirp_add_exec(0, smb_cmdline, 4, 139);
882 /* automatic user mode samba server configuration */
883 void net_slirp_smb(const char *exported_dir)
885 if (slirp_smb_export) {
886 fprintf(stderr, "-smb given twice\n");
889 slirp_smb_export = exported_dir;
891 slirp_smb(exported_dir);
895 #endif /* !defined(_WIN32) */
897 void do_info_slirp(Monitor *mon)
907 static int vmchannel_can_read(void *opaque)
909 struct VMChannel *vmc = (struct VMChannel*)opaque;
910 return slirp_socket_can_recv(4, vmc->port);
913 static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
915 struct VMChannel *vmc = (struct VMChannel*)opaque;
916 slirp_socket_recv(4, vmc->port, buf, size);
919 #endif /* CONFIG_SLIRP */
923 typedef struct TAPState {
926 char down_script[1024];
927 char down_script_arg[128];
931 static int launch_script(const char *setup_script, const char *ifname, int fd);
933 static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov,
936 TAPState *s = opaque;
940 len = writev(s->fd, iov, iovcnt);
941 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
946 static void tap_receive(void *opaque, const uint8_t *buf, int size)
948 TAPState *s = opaque;
951 ret = write(s->fd, buf, size);
952 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
959 static int tap_can_send(void *opaque)
961 TAPState *s = opaque;
963 return qemu_can_send_packet(s->vc);
967 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
972 sbuf.maxlen = maxlen;
973 sbuf.buf = (char *)buf;
975 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
978 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
980 return read(tapfd, buf, maxlen);
984 static void tap_send(void *opaque)
986 TAPState *s = opaque;
989 size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
991 qemu_send_packet(s->vc, s->buf, size);
995 static void tap_cleanup(VLANClientState *vc)
997 TAPState *s = vc->opaque;
999 if (s->down_script[0])
1000 launch_script(s->down_script, s->down_script_arg, s->fd);
1002 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1009 static TAPState *net_tap_fd_init(VLANState *vlan,
1016 s = qemu_mallocz(sizeof(TAPState));
1018 s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive,
1019 NULL, tap_cleanup, s);
1020 s->vc->fd_readv = tap_receive_iov;
1021 qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s);
1022 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
1026 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1027 static int tap_open(char *ifname, int ifname_size)
1033 TFR(fd = open("/dev/tap", O_RDWR));
1035 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1040 dev = devname(s.st_rdev, S_IFCHR);
1041 pstrcpy(ifname, ifname_size, dev);
1043 fcntl(fd, F_SETFL, O_NONBLOCK);
1046 #elif defined(__sun__)
1047 #define TUNNEWPPA (('T'<<16) | 0x0001)
1049 * Allocate TAP device, returns opened fd.
1050 * Stores dev name in the first arg(must be large enough).
1052 static int tap_alloc(char *dev, size_t dev_size)
1054 int tap_fd, if_fd, ppa = -1;
1055 static int ip_fd = 0;
1058 static int arp_fd = 0;
1059 int ip_muxid, arp_muxid;
1060 struct strioctl strioc_if, strioc_ppa;
1061 int link_type = I_PLINK;;
1063 char actual_name[32] = "";
1065 memset(&ifr, 0x0, sizeof(ifr));
1069 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
1073 /* Check if IP device was opened */
1077 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1079 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1083 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1085 syslog(LOG_ERR, "Can't open /dev/tap");
1089 /* Assign a new PPA and get its unit number. */
1090 strioc_ppa.ic_cmd = TUNNEWPPA;
1091 strioc_ppa.ic_timout = 0;
1092 strioc_ppa.ic_len = sizeof(ppa);
1093 strioc_ppa.ic_dp = (char *)&ppa;
1094 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1095 syslog (LOG_ERR, "Can't assign new interface");
1097 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1099 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1102 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1103 syslog(LOG_ERR, "Can't push IP module");
1107 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1108 syslog(LOG_ERR, "Can't get flags\n");
1110 snprintf (actual_name, 32, "tap%d", ppa);
1111 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1114 /* Assign ppa according to the unit number returned by tun device */
1116 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1117 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1118 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1119 syslog (LOG_ERR, "Can't get flags\n");
1120 /* Push arp module to if_fd */
1121 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1122 syslog (LOG_ERR, "Can't push ARP module (2)");
1124 /* Push arp module to ip_fd */
1125 if (ioctl (ip_fd, I_POP, NULL) < 0)
1126 syslog (LOG_ERR, "I_POP failed\n");
1127 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1128 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1130 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1132 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1134 /* Set ifname to arp */
1135 strioc_if.ic_cmd = SIOCSLIFNAME;
1136 strioc_if.ic_timout = 0;
1137 strioc_if.ic_len = sizeof(ifr);
1138 strioc_if.ic_dp = (char *)𝔦
1139 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1140 syslog (LOG_ERR, "Can't set ifname to arp\n");
1143 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1144 syslog(LOG_ERR, "Can't link TAP device to IP");
1148 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1149 syslog (LOG_ERR, "Can't link TAP device to ARP");
1153 memset(&ifr, 0x0, sizeof(ifr));
1154 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1155 ifr.lifr_ip_muxid = ip_muxid;
1156 ifr.lifr_arp_muxid = arp_muxid;
1158 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1160 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1161 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1162 syslog (LOG_ERR, "Can't set multiplexor id");
1165 snprintf(dev, dev_size, "tap%d", ppa);
1169 static int tap_open(char *ifname, int ifname_size)
1173 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1174 fprintf(stderr, "Cannot allocate TAP device\n");
1177 pstrcpy(ifname, ifname_size, dev);
1178 fcntl(fd, F_SETFL, O_NONBLOCK);
1181 #elif defined (_AIX)
1182 static int tap_open(char *ifname, int ifname_size)
1184 fprintf (stderr, "no tap on AIX\n");
1188 static int tap_open(char *ifname, int ifname_size)
1193 TFR(fd = open("/dev/net/tun", O_RDWR));
1195 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1198 memset(&ifr, 0, sizeof(ifr));
1199 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1200 if (ifname[0] != '\0')
1201 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1203 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1204 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1206 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1210 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1211 fcntl(fd, F_SETFL, O_NONBLOCK);
1216 static int launch_script(const char *setup_script, const char *ifname, int fd)
1218 sigset_t oldmask, mask;
1224 sigaddset(&mask, SIGCHLD);
1225 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1227 /* try to launch network script */
1230 int open_max = sysconf(_SC_OPEN_MAX), i;
1232 for (i = 0; i < open_max; i++) {
1233 if (i != STDIN_FILENO &&
1234 i != STDOUT_FILENO &&
1235 i != STDERR_FILENO &&
1241 *parg++ = (char *)setup_script;
1242 *parg++ = (char *)ifname;
1244 execv(setup_script, args);
1246 } else if (pid > 0) {
1247 while (waitpid(pid, &status, 0) != pid) {
1250 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1252 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1256 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1260 static int net_tap_init(VLANState *vlan, const char *model,
1261 const char *name, const char *ifname1,
1262 const char *setup_script, const char *down_script)
1268 if (ifname1 != NULL)
1269 pstrcpy(ifname, sizeof(ifname), ifname1);
1272 TFR(fd = tap_open(ifname, sizeof(ifname)));
1276 if (!setup_script || !strcmp(setup_script, "no"))
1278 if (setup_script[0] != '\0') {
1279 if (launch_script(setup_script, ifname, fd))
1282 s = net_tap_fd_init(vlan, model, name, fd);
1283 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1284 "ifname=%s,script=%s,downscript=%s",
1285 ifname, setup_script, down_script);
1286 if (down_script && strcmp(down_script, "no")) {
1287 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1288 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1293 #endif /* !_WIN32 */
1295 #if defined(CONFIG_VDE)
1296 typedef struct VDEState {
1297 VLANClientState *vc;
1301 static void vde_to_qemu(void *opaque)
1303 VDEState *s = opaque;
1307 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
1309 qemu_send_packet(s->vc, buf, size);
1313 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
1315 VDEState *s = opaque;
1318 ret = vde_send(s->vde, (const char *)buf, size, 0);
1319 if (ret < 0 && errno == EINTR) {
1326 static void vde_cleanup(VLANClientState *vc)
1328 VDEState *s = vc->opaque;
1329 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1334 static int net_vde_init(VLANState *vlan, const char *model,
1335 const char *name, const char *sock,
1336 int port, const char *group, int mode)
1339 char *init_group = strlen(group) ? (char *)group : NULL;
1340 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1342 struct vde_open_args args = {
1344 .group = init_group,
1348 s = qemu_mallocz(sizeof(VDEState));
1349 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
1354 s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu,
1355 NULL, vde_cleanup, s);
1356 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1357 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1358 sock, vde_datafd(s->vde));
1363 /* network connection */
1364 typedef struct NetSocketState {
1365 VLANClientState *vc;
1367 int state; /* 0 = getting length, 1 = getting data */
1369 unsigned int packet_len;
1371 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1374 typedef struct NetSocketListenState {
1379 } NetSocketListenState;
1381 /* XXX: we consider we can send the whole packet without blocking */
1382 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
1384 NetSocketState *s = opaque;
1388 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1389 send_all(s->fd, buf, size);
1392 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
1394 NetSocketState *s = opaque;
1395 sendto(s->fd, buf, size, 0,
1396 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1399 static void net_socket_send(void *opaque)
1401 NetSocketState *s = opaque;
1407 size = recv(s->fd, buf1, sizeof(buf1), 0);
1409 err = socket_error();
1410 if (err != EWOULDBLOCK)
1412 } else if (size == 0) {
1413 /* end of connection */
1415 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1421 /* reassemble a packet from the network */
1427 memcpy(s->buf + s->index, buf, l);
1431 if (s->index == 4) {
1433 s->packet_len = ntohl(*(uint32_t *)s->buf);
1439 l = s->packet_len - s->index;
1442 if (s->index + l <= sizeof(s->buf)) {
1443 memcpy(s->buf + s->index, buf, l);
1445 fprintf(stderr, "serious error: oversized packet received,"
1446 "connection terminated.\n");
1454 if (s->index >= s->packet_len) {
1455 qemu_send_packet(s->vc, s->buf, s->packet_len);
1464 static void net_socket_send_dgram(void *opaque)
1466 NetSocketState *s = opaque;
1469 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1473 /* end of connection */
1474 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1477 qemu_send_packet(s->vc, s->buf, size);
1480 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1485 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1486 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1487 inet_ntoa(mcastaddr->sin_addr),
1488 (int)ntohl(mcastaddr->sin_addr.s_addr));
1492 fd = socket(PF_INET, SOCK_DGRAM, 0);
1494 perror("socket(PF_INET, SOCK_DGRAM)");
1499 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1500 (const char *)&val, sizeof(val));
1502 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1506 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1512 /* Add host to multicast group */
1513 imr.imr_multiaddr = mcastaddr->sin_addr;
1514 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1516 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1517 (const char *)&imr, sizeof(struct ip_mreq));
1519 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1523 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1525 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1526 (const char *)&val, sizeof(val));
1528 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1532 socket_set_nonblock(fd);
1540 static void net_socket_cleanup(VLANClientState *vc)
1542 NetSocketState *s = vc->opaque;
1543 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1548 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1551 int fd, int is_connected)
1553 struct sockaddr_in saddr;
1555 socklen_t saddr_len;
1558 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1559 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1560 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1564 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1566 if (saddr.sin_addr.s_addr==0) {
1567 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1571 /* clone dgram socket */
1572 newfd = net_socket_mcast_create(&saddr);
1574 /* error already reported by net_socket_mcast_create() */
1578 /* clone newfd to fd, close newfd */
1583 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1584 fd, strerror(errno));
1589 s = qemu_mallocz(sizeof(NetSocketState));
1592 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram,
1593 NULL, net_socket_cleanup, s);
1594 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1596 /* mcast: save bound address as dst */
1597 if (is_connected) s->dgram_dst=saddr;
1599 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1600 "socket: fd=%d (%s mcast=%s:%d)",
1601 fd, is_connected? "cloned" : "",
1602 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1606 static void net_socket_connect(void *opaque)
1608 NetSocketState *s = opaque;
1609 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1612 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1615 int fd, int is_connected)
1618 s = qemu_mallocz(sizeof(NetSocketState));
1620 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive,
1621 NULL, net_socket_cleanup, s);
1622 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1623 "socket: fd=%d", fd);
1625 net_socket_connect(s);
1627 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1632 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1633 const char *model, const char *name,
1634 int fd, int is_connected)
1636 int so_type=-1, optlen=sizeof(so_type);
1638 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1639 (socklen_t *)&optlen)< 0) {
1640 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1645 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1647 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1649 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1650 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1651 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1656 static void net_socket_accept(void *opaque)
1658 NetSocketListenState *s = opaque;
1660 struct sockaddr_in saddr;
1665 len = sizeof(saddr);
1666 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1667 if (fd < 0 && errno != EINTR) {
1669 } else if (fd >= 0) {
1673 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1677 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1678 "socket: connection from %s:%d",
1679 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1683 static int net_socket_listen_init(VLANState *vlan,
1686 const char *host_str)
1688 NetSocketListenState *s;
1690 struct sockaddr_in saddr;
1692 if (parse_host_port(&saddr, host_str) < 0)
1695 s = qemu_mallocz(sizeof(NetSocketListenState));
1697 fd = socket(PF_INET, SOCK_STREAM, 0);
1702 socket_set_nonblock(fd);
1704 /* allow fast reuse */
1706 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1708 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1713 ret = listen(fd, 0);
1719 s->model = strdup(model);
1720 s->name = name ? strdup(name) : NULL;
1722 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1726 static int net_socket_connect_init(VLANState *vlan,
1729 const char *host_str)
1732 int fd, connected, ret, err;
1733 struct sockaddr_in saddr;
1735 if (parse_host_port(&saddr, host_str) < 0)
1738 fd = socket(PF_INET, SOCK_STREAM, 0);
1743 socket_set_nonblock(fd);
1747 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1749 err = socket_error();
1750 if (err == EINTR || err == EWOULDBLOCK) {
1751 } else if (err == EINPROGRESS) {
1754 } else if (err == WSAEALREADY) {
1767 s = net_socket_fd_init(vlan, model, name, fd, connected);
1770 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1771 "socket: connect to %s:%d",
1772 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1776 static int net_socket_mcast_init(VLANState *vlan,
1779 const char *host_str)
1783 struct sockaddr_in saddr;
1785 if (parse_host_port(&saddr, host_str) < 0)
1789 fd = net_socket_mcast_create(&saddr);
1793 s = net_socket_fd_init(vlan, model, name, fd, 0);
1797 s->dgram_dst = saddr;
1799 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1800 "socket: mcast=%s:%d",
1801 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1806 typedef struct DumpState {
1807 VLANClientState *pcap_vc;
1812 #define PCAP_MAGIC 0xa1b2c3d4
1814 struct pcap_file_hdr {
1816 uint16_t version_major;
1817 uint16_t version_minor;
1824 struct pcap_sf_pkthdr {
1833 static void dump_receive(void *opaque, const uint8_t *buf, int size)
1835 DumpState *s = opaque;
1836 struct pcap_sf_pkthdr hdr;
1840 /* Early return in case of previous error. */
1845 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
1846 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1848 hdr.ts.tv_sec = ts / 1000000;
1849 hdr.ts.tv_usec = ts % 1000000;
1850 hdr.caplen = caplen;
1852 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
1853 write(s->fd, buf, caplen) != caplen) {
1854 qemu_log("-net dump write error - stop dump\n");
1860 static void net_dump_cleanup(VLANClientState *vc)
1862 DumpState *s = vc->opaque;
1868 static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
1869 const char *name, const char *filename, int len)
1871 struct pcap_file_hdr hdr;
1874 s = qemu_malloc(sizeof(DumpState));
1876 s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
1878 config_error(mon, "-net dump: can't open %s\n", filename);
1882 s->pcap_caplen = len;
1884 hdr.magic = PCAP_MAGIC;
1885 hdr.version_major = 2;
1886 hdr.version_minor = 4;
1889 hdr.snaplen = s->pcap_caplen;
1892 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
1893 config_error(mon, "-net dump write error: %s\n", strerror(errno));
1899 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, dump_receive, NULL,
1900 net_dump_cleanup, s);
1901 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
1902 "dump to %s (len=%d)", filename, len);
1906 /* find or alloc a new VLAN */
1907 VLANState *qemu_find_vlan(int id)
1909 VLANState **pvlan, *vlan;
1910 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1914 vlan = qemu_mallocz(sizeof(VLANState));
1917 pvlan = &first_vlan;
1918 while (*pvlan != NULL)
1919 pvlan = &(*pvlan)->next;
1924 static int nic_get_free_idx(void)
1928 for (index = 0; index < MAX_NICS; index++)
1929 if (!nd_table[index].used)
1934 void qemu_check_nic_model(NICInfo *nd, const char *model)
1936 const char *models[2];
1941 qemu_check_nic_model_list(nd, models, model);
1944 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
1945 const char *default_model)
1947 int i, exit_status = 0;
1950 nd->model = strdup(default_model);
1952 if (strcmp(nd->model, "?") != 0) {
1953 for (i = 0 ; models[i]; i++)
1954 if (strcmp(nd->model, models[i]) == 0)
1957 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
1961 fprintf(stderr, "qemu: Supported NIC models: ");
1962 for (i = 0 ; models[i]; i++)
1963 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
1968 int net_client_init(Monitor *mon, const char *device, const char *p)
1970 static const char * const fd_params[] = {
1971 "vlan", "name", "fd", NULL
1979 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1980 vlan_id = strtol(buf, NULL, 0);
1982 vlan = qemu_find_vlan(vlan_id);
1984 if (get_param_value(buf, sizeof(buf), "name", p)) {
1985 name = qemu_strdup(buf);
1987 if (!strcmp(device, "nic")) {
1988 static const char * const nic_params[] = {
1989 "vlan", "name", "macaddr", "model", NULL
1993 int idx = nic_get_free_idx();
1995 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
1996 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2000 if (idx == -1 || nb_nics >= MAX_NICS) {
2001 config_error(mon, "Too Many NICs\n");
2005 nd = &nd_table[idx];
2006 macaddr = nd->macaddr;
2012 macaddr[5] = 0x56 + idx;
2014 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
2015 if (parse_macaddr(macaddr, buf) < 0) {
2016 config_error(mon, "invalid syntax for ethernet address\n");
2021 if (get_param_value(buf, sizeof(buf), "model", p)) {
2022 nd->model = strdup(buf);
2029 vlan->nb_guest_devs++;
2032 if (!strcmp(device, "none")) {
2034 config_error(mon, "'none' takes no parameters\n");
2038 /* does nothing. It is needed to signal that no network cards
2043 if (!strcmp(device, "user")) {
2044 static const char * const slirp_params[] = {
2045 "vlan", "name", "hostname", "restrict", "ip", NULL
2050 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
2051 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2055 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
2056 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
2058 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
2059 restricted = (buf[0] == 'y') ? 1 : 0;
2061 if (get_param_value(buf, sizeof(buf), "ip", p)) {
2062 ip = qemu_strdup(buf);
2064 vlan->nb_host_devs++;
2065 ret = net_slirp_init(vlan, device, name, restricted, ip);
2067 } else if (!strcmp(device, "channel")) {
2069 char name[20], *devname;
2070 struct VMChannel *vmc;
2072 port = strtol(p, &devname, 10);
2074 if (port < 1 || port > 65535) {
2075 config_error(mon, "vmchannel wrong port number\n");
2079 vmc = malloc(sizeof(struct VMChannel));
2080 snprintf(name, 20, "vmchannel%ld", port);
2081 vmc->hd = qemu_chr_open(name, devname, NULL);
2083 config_error(mon, "could not open vmchannel device '%s'\n",
2089 slirp_add_exec(3, vmc->hd, 4, port);
2090 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
2096 if (!strcmp(device, "tap")) {
2097 static const char * const tap_params[] = {
2098 "vlan", "name", "ifname", NULL
2102 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
2103 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2107 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2108 config_error(mon, "tap: no interface name\n");
2112 vlan->nb_host_devs++;
2113 ret = tap_win32_init(vlan, device, name, ifname);
2115 #elif defined (_AIX)
2117 if (!strcmp(device, "tap")) {
2118 char ifname[64], chkbuf[64];
2119 char setup_script[1024], down_script[1024];
2121 vlan->nb_host_devs++;
2122 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2123 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2124 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2128 fd = strtol(buf, NULL, 0);
2129 fcntl(fd, F_SETFL, O_NONBLOCK);
2130 net_tap_fd_init(vlan, device, name, fd);
2133 static const char * const tap_params[] = {
2134 "vlan", "name", "ifname", "script", "downscript", NULL
2136 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
2137 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2141 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2144 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2145 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2147 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2148 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2150 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2154 if (!strcmp(device, "socket")) {
2156 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2158 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2159 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2163 fd = strtol(buf, NULL, 0);
2165 if (net_socket_fd_init(vlan, device, name, fd, 1))
2167 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
2168 static const char * const listen_params[] = {
2169 "vlan", "name", "listen", NULL
2171 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
2172 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2176 ret = net_socket_listen_init(vlan, device, name, buf);
2177 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
2178 static const char * const connect_params[] = {
2179 "vlan", "name", "connect", NULL
2181 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
2182 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2186 ret = net_socket_connect_init(vlan, device, name, buf);
2187 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
2188 static const char * const mcast_params[] = {
2189 "vlan", "name", "mcast", NULL
2191 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
2192 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2196 ret = net_socket_mcast_init(vlan, device, name, buf);
2198 config_error(mon, "Unknown socket options: %s\n", p);
2202 vlan->nb_host_devs++;
2205 if (!strcmp(device, "vde")) {
2206 static const char * const vde_params[] = {
2207 "vlan", "name", "sock", "port", "group", "mode", NULL
2209 char vde_sock[1024], vde_group[512];
2210 int vde_port, vde_mode;
2212 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
2213 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2217 vlan->nb_host_devs++;
2218 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2221 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2222 vde_port = strtol(buf, NULL, 10);
2226 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2227 vde_group[0] = '\0';
2229 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2230 vde_mode = strtol(buf, NULL, 8);
2234 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2237 if (!strcmp(device, "dump")) {
2240 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2241 len = strtol(buf, NULL, 0);
2243 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2244 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2246 ret = net_dump_init(mon, vlan, device, name, buf, len);
2248 config_error(mon, "Unknown network device: %s\n", device);
2253 config_error(mon, "Could not initialize device '%s'\n", device);
2260 void net_client_uninit(NICInfo *nd)
2262 nd->vlan->nb_guest_devs--;
2265 free((void *)nd->model);
2268 static int net_host_check_device(const char *device)
2271 const char *valid_param_list[] = { "tap", "socket", "dump"
2279 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2280 if (!strncmp(valid_param_list[i], device,
2281 strlen(valid_param_list[i])))
2288 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2290 if (!net_host_check_device(device)) {
2291 monitor_printf(mon, "invalid host network device %s\n", device);
2294 if (net_client_init(mon, device, opts ? opts : "") < 0) {
2295 monitor_printf(mon, "adding host network device %s failed\n", device);
2299 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2302 VLANClientState *vc;
2304 vlan = qemu_find_vlan(vlan_id);
2306 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2307 if (!strcmp(vc->name, device)) {
2313 monitor_printf(mon, "can't find device %s\n", device);
2316 if (!net_host_check_device(vc->model)) {
2317 monitor_printf(mon, "invalid host network device %s\n", device);
2320 qemu_del_vlan_client(vc);
2323 int net_client_parse(const char *str)
2331 while (*p != '\0' && *p != ',') {
2332 if ((q - device) < sizeof(device) - 1)
2340 return net_client_init(NULL, device, p);
2343 void do_info_network(Monitor *mon)
2346 VLANClientState *vc;
2348 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2349 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2350 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2351 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2355 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2358 VLANClientState *vc = NULL;
2360 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2361 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2362 if (strcmp(vc->name, name) == 0)
2367 monitor_printf(mon, "could not find network device '%s'", name);
2371 if (strcmp(up_or_down, "up") == 0)
2373 else if (strcmp(up_or_down, "down") == 0)
2376 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2377 "valid\n", up_or_down);
2379 if (vc->link_status_changed)
2380 vc->link_status_changed(vc);
2385 void net_cleanup(void)
2389 /* close network clients */
2390 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2391 VLANClientState *vc = vlan->first_client;
2394 VLANClientState *next = vc->next;
2396 qemu_del_vlan_client(vc);
2403 void net_client_check(void)
2407 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2408 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2410 if (vlan->nb_guest_devs == 0)
2411 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2412 if (vlan->nb_host_devs == 0)
2414 "Warning: vlan %d is not connected to host network\n",