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)
418 sender->vlan->delivering = 1;
420 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
432 len = vc->receive(vc, buf, size);
434 ret = (ret >= 0) ? ret : len;
437 sender->vlan->delivering = 0;
442 void qemu_flush_queued_packets(VLANClientState *vc)
446 while ((packet = vc->vlan->send_queue) != NULL) {
449 vc->vlan->send_queue = packet->next;
451 ret = qemu_deliver_packet(packet->sender, packet->data, packet->size);
452 if (ret == 0 && packet->sent_cb != NULL) {
453 packet->next = vc->vlan->send_queue;
454 vc->vlan->send_queue = packet;
459 packet->sent_cb(packet->sender);
465 static void qemu_enqueue_packet(VLANClientState *sender,
466 const uint8_t *buf, int size,
467 NetPacketSent *sent_cb)
471 packet = qemu_malloc(sizeof(VLANPacket) + size);
472 packet->next = sender->vlan->send_queue;
473 packet->sender = sender;
475 packet->sent_cb = sent_cb;
476 memcpy(packet->data, buf, size);
477 sender->vlan->send_queue = packet;
480 ssize_t qemu_send_packet_async(VLANClientState *sender,
481 const uint8_t *buf, int size,
482 NetPacketSent *sent_cb)
486 if (sender->link_down) {
491 printf("vlan %d send:\n", sender->vlan->id);
492 hex_dump(stdout, buf, size);
495 if (sender->vlan->delivering) {
496 qemu_enqueue_packet(sender, buf, size, NULL);
500 ret = qemu_deliver_packet(sender, buf, size);
501 if (ret == 0 && sent_cb != NULL) {
502 qemu_enqueue_packet(sender, buf, size, sent_cb);
506 qemu_flush_queued_packets(sender);
511 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
513 qemu_send_packet_async(vc, buf, size, NULL);
516 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
519 uint8_t buffer[4096];
523 for (i = 0; i < iovcnt; i++) {
526 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
527 memcpy(buffer + offset, iov[i].iov_base, len);
531 return vc->receive(vc, buffer, offset);
534 static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
539 for (i = 0; i < iovcnt; i++)
540 offset += iov[i].iov_len;
544 static int qemu_deliver_packet_iov(VLANClientState *sender,
545 const struct iovec *iov, int iovcnt)
550 sender->vlan->delivering = 1;
552 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
560 ret = calc_iov_length(iov, iovcnt);
564 if (vc->receive_iov) {
565 len = vc->receive_iov(vc, iov, iovcnt);
567 len = vc_sendv_compat(vc, iov, iovcnt);
570 ret = (ret >= 0) ? ret : len;
573 sender->vlan->delivering = 0;
578 static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
579 const struct iovec *iov, int iovcnt,
580 NetPacketSent *sent_cb)
586 max_len = calc_iov_length(iov, iovcnt);
588 packet = qemu_malloc(sizeof(VLANPacket) + max_len);
589 packet->next = sender->vlan->send_queue;
590 packet->sender = sender;
591 packet->sent_cb = sent_cb;
594 for (i = 0; i < iovcnt; i++) {
595 size_t len = iov[i].iov_len;
597 memcpy(packet->data + packet->size, iov[i].iov_base, len);
601 sender->vlan->send_queue = packet;
606 ssize_t qemu_sendv_packet_async(VLANClientState *sender,
607 const struct iovec *iov, int iovcnt,
608 NetPacketSent *sent_cb)
612 if (sender->link_down) {
613 return calc_iov_length(iov, iovcnt);
616 if (sender->vlan->delivering) {
617 return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL);
620 ret = qemu_deliver_packet_iov(sender, iov, iovcnt);
621 if (ret == 0 && sent_cb != NULL) {
622 qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb);
626 qemu_flush_queued_packets(sender);
632 qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
634 return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
637 static void config_error(Monitor *mon, const char *fmt, ...)
643 monitor_vprintf(mon, fmt, ap);
645 fprintf(stderr, "qemu: ");
646 vfprintf(stderr, fmt, ap);
652 #if defined(CONFIG_SLIRP)
654 /* slirp network adapter */
656 struct slirp_config_str {
657 struct slirp_config_str *next;
661 static int slirp_inited;
662 static struct slirp_config_str *slirp_redirs;
664 static const char *slirp_smb_export;
666 static VLANClientState *slirp_vc;
668 static void slirp_smb(const char *exported_dir);
669 static void slirp_redirection(Monitor *mon, const char *redir_str);
671 int slirp_can_output(void)
673 return !slirp_vc || qemu_can_send_packet(slirp_vc);
676 void slirp_output(const uint8_t *pkt, int pkt_len)
679 printf("slirp output:\n");
680 hex_dump(stdout, pkt, pkt_len);
684 qemu_send_packet(slirp_vc, pkt, pkt_len);
687 int slirp_is_inited(void)
692 static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
695 printf("slirp input:\n");
696 hex_dump(stdout, buf, size);
698 slirp_input(buf, size);
702 static int slirp_in_use;
704 static void net_slirp_cleanup(VLANClientState *vc)
709 static int net_slirp_init(VLANState *vlan, const char *model, const char *name,
710 int restricted, const char *ip)
713 /* slirp only supports a single instance so far */
718 slirp_init(restricted, ip);
720 while (slirp_redirs) {
721 struct slirp_config_str *config = slirp_redirs;
723 slirp_redirection(NULL, config->str);
724 slirp_redirs = config->next;
728 if (slirp_smb_export) {
729 slirp_smb(slirp_smb_export);
734 slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive,
735 NULL, net_slirp_cleanup, NULL);
736 slirp_vc->info_str[0] = '\0';
741 static void net_slirp_redir_print(void *opaque, int is_udp,
742 struct in_addr *laddr, u_int lport,
743 struct in_addr *faddr, u_int fport)
745 Monitor *mon = (Monitor *)opaque;
750 h_addr = ntohl(faddr->s_addr);
751 g_addr = ntohl(laddr->s_addr);
753 monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" );
754 snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff,
755 (h_addr >> 16) & 0xff,
756 (h_addr >> 8) & 0xff,
758 monitor_printf(mon, " %15s |", buf);
759 monitor_printf(mon, " %5d |", fport);
761 snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff,
762 (g_addr >> 16) & 0xff,
763 (g_addr >> 8) & 0xff,
765 monitor_printf(mon, " %15s |", buf);
766 monitor_printf(mon, " %5d\n", lport);
770 static void net_slirp_redir_list(Monitor *mon)
775 monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
776 monitor_printf(mon, " | | | | \n");
777 slirp_redir_loop(net_slirp_redir_print, mon);
780 static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
784 const char *p = port_str;
791 if (!port_str || !port_str[0])
794 get_str_sep(buf, sizeof(buf), &p, ':');
796 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
798 } else if (!strcmp(buf, "udp")) {
806 n = slirp_redir_rm(is_udp, host_port);
808 monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
809 is_udp ? "udp" : "tcp", host_port);
813 monitor_printf(mon, "invalid format\n");
816 static void slirp_redirection(Monitor *mon, const char *redir_str)
818 struct in_addr guest_addr;
819 int host_port, guest_port;
825 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
828 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
830 } else if (!strcmp(buf, "udp")) {
836 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
839 host_port = strtol(buf, &r, 0);
844 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
847 if (buf[0] == '\0') {
848 pstrcpy(buf, sizeof(buf), "10.0.2.15");
850 if (!inet_aton(buf, &guest_addr)) {
854 guest_port = strtol(p, &r, 0);
859 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
860 config_error(mon, "could not set up redirection '%s'\n", redir_str);
865 config_error(mon, "invalid redirection format '%s'\n", redir_str);
868 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
870 struct slirp_config_str *config;
874 monitor_printf(mon, "user mode network stack not in use\n");
876 config = qemu_malloc(sizeof(*config));
877 config->str = redir_str;
878 config->next = slirp_redirs;
879 slirp_redirs = config;
884 if (!strcmp(redir_str, "remove")) {
885 net_slirp_redir_rm(mon, redir_opt2);
889 if (!strcmp(redir_str, "list")) {
890 net_slirp_redir_list(mon);
894 slirp_redirection(mon, redir_str);
899 static char smb_dir[1024];
901 static void erase_dir(char *dir_name)
907 /* erase all the files in the directory */
908 if ((d = opendir(dir_name)) != NULL) {
913 if (strcmp(de->d_name, ".") != 0 &&
914 strcmp(de->d_name, "..") != 0) {
915 snprintf(filename, sizeof(filename), "%s/%s",
916 smb_dir, de->d_name);
917 if (unlink(filename) != 0) /* is it a directory? */
926 /* automatic user mode samba server configuration */
927 static void smb_exit(void)
932 static void slirp_smb(const char *exported_dir)
935 char smb_cmdline[1024];
938 /* XXX: better tmp dir construction */
939 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
940 if (mkdir(smb_dir, 0700) < 0) {
941 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
944 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
946 f = fopen(smb_conf, "w");
948 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
955 "socket address=127.0.0.1\n"
957 "lock directory=%s\n"
958 "log file=%s/log.smbd\n"
959 "smb passwd file=%s/smbpasswd\n"
975 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
976 SMBD_COMMAND, smb_conf);
978 slirp_add_exec(0, smb_cmdline, 4, 139);
981 /* automatic user mode samba server configuration */
982 void net_slirp_smb(const char *exported_dir)
984 if (slirp_smb_export) {
985 fprintf(stderr, "-smb given twice\n");
988 slirp_smb_export = exported_dir;
990 slirp_smb(exported_dir);
994 #endif /* !defined(_WIN32) */
996 void do_info_slirp(Monitor *mon)
1002 CharDriverState *hd;
1006 static int vmchannel_can_read(void *opaque)
1008 struct VMChannel *vmc = (struct VMChannel*)opaque;
1009 return slirp_socket_can_recv(4, vmc->port);
1012 static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
1014 struct VMChannel *vmc = (struct VMChannel*)opaque;
1015 slirp_socket_recv(4, vmc->port, buf, size);
1018 #endif /* CONFIG_SLIRP */
1020 #if !defined(_WIN32)
1022 typedef struct TAPState {
1023 VLANClientState *vc;
1025 char down_script[1024];
1026 char down_script_arg[128];
1030 static int launch_script(const char *setup_script, const char *ifname, int fd);
1032 static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov,
1035 TAPState *s = vc->opaque;
1039 len = writev(s->fd, iov, iovcnt);
1040 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
1045 static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1047 TAPState *s = vc->opaque;
1051 len = write(s->fd, buf, size);
1052 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
1057 static int tap_can_send(void *opaque)
1059 TAPState *s = opaque;
1061 return qemu_can_send_packet(s->vc);
1065 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1070 sbuf.maxlen = maxlen;
1071 sbuf.buf = (char *)buf;
1073 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
1076 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1078 return read(tapfd, buf, maxlen);
1082 static void tap_send(void *opaque)
1084 TAPState *s = opaque;
1087 size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
1089 qemu_send_packet(s->vc, s->buf, size);
1093 static void tap_cleanup(VLANClientState *vc)
1095 TAPState *s = vc->opaque;
1097 if (s->down_script[0])
1098 launch_script(s->down_script, s->down_script_arg, s->fd);
1100 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1107 static TAPState *net_tap_fd_init(VLANState *vlan,
1114 s = qemu_mallocz(sizeof(TAPState));
1116 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
1117 tap_receive_iov, tap_cleanup, s);
1118 qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s);
1119 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
1123 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1124 static int tap_open(char *ifname, int ifname_size)
1130 TFR(fd = open("/dev/tap", O_RDWR));
1132 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1137 dev = devname(s.st_rdev, S_IFCHR);
1138 pstrcpy(ifname, ifname_size, dev);
1140 fcntl(fd, F_SETFL, O_NONBLOCK);
1143 #elif defined(__sun__)
1144 #define TUNNEWPPA (('T'<<16) | 0x0001)
1146 * Allocate TAP device, returns opened fd.
1147 * Stores dev name in the first arg(must be large enough).
1149 static int tap_alloc(char *dev, size_t dev_size)
1151 int tap_fd, if_fd, ppa = -1;
1152 static int ip_fd = 0;
1155 static int arp_fd = 0;
1156 int ip_muxid, arp_muxid;
1157 struct strioctl strioc_if, strioc_ppa;
1158 int link_type = I_PLINK;;
1160 char actual_name[32] = "";
1162 memset(&ifr, 0x0, sizeof(ifr));
1166 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
1170 /* Check if IP device was opened */
1174 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1176 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1180 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1182 syslog(LOG_ERR, "Can't open /dev/tap");
1186 /* Assign a new PPA and get its unit number. */
1187 strioc_ppa.ic_cmd = TUNNEWPPA;
1188 strioc_ppa.ic_timout = 0;
1189 strioc_ppa.ic_len = sizeof(ppa);
1190 strioc_ppa.ic_dp = (char *)&ppa;
1191 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1192 syslog (LOG_ERR, "Can't assign new interface");
1194 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1196 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1199 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1200 syslog(LOG_ERR, "Can't push IP module");
1204 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1205 syslog(LOG_ERR, "Can't get flags\n");
1207 snprintf (actual_name, 32, "tap%d", ppa);
1208 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1211 /* Assign ppa according to the unit number returned by tun device */
1213 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1214 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1215 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1216 syslog (LOG_ERR, "Can't get flags\n");
1217 /* Push arp module to if_fd */
1218 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1219 syslog (LOG_ERR, "Can't push ARP module (2)");
1221 /* Push arp module to ip_fd */
1222 if (ioctl (ip_fd, I_POP, NULL) < 0)
1223 syslog (LOG_ERR, "I_POP failed\n");
1224 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1225 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1227 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1229 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1231 /* Set ifname to arp */
1232 strioc_if.ic_cmd = SIOCSLIFNAME;
1233 strioc_if.ic_timout = 0;
1234 strioc_if.ic_len = sizeof(ifr);
1235 strioc_if.ic_dp = (char *)𝔦
1236 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1237 syslog (LOG_ERR, "Can't set ifname to arp\n");
1240 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1241 syslog(LOG_ERR, "Can't link TAP device to IP");
1245 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1246 syslog (LOG_ERR, "Can't link TAP device to ARP");
1250 memset(&ifr, 0x0, sizeof(ifr));
1251 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1252 ifr.lifr_ip_muxid = ip_muxid;
1253 ifr.lifr_arp_muxid = arp_muxid;
1255 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1257 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1258 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1259 syslog (LOG_ERR, "Can't set multiplexor id");
1262 snprintf(dev, dev_size, "tap%d", ppa);
1266 static int tap_open(char *ifname, int ifname_size)
1270 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1271 fprintf(stderr, "Cannot allocate TAP device\n");
1274 pstrcpy(ifname, ifname_size, dev);
1275 fcntl(fd, F_SETFL, O_NONBLOCK);
1278 #elif defined (_AIX)
1279 static int tap_open(char *ifname, int ifname_size)
1281 fprintf (stderr, "no tap on AIX\n");
1285 static int tap_open(char *ifname, int ifname_size)
1290 TFR(fd = open("/dev/net/tun", O_RDWR));
1292 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1295 memset(&ifr, 0, sizeof(ifr));
1296 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1297 if (ifname[0] != '\0')
1298 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1300 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1301 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1303 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1307 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1308 fcntl(fd, F_SETFL, O_NONBLOCK);
1313 static int launch_script(const char *setup_script, const char *ifname, int fd)
1315 sigset_t oldmask, mask;
1321 sigaddset(&mask, SIGCHLD);
1322 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1324 /* try to launch network script */
1327 int open_max = sysconf(_SC_OPEN_MAX), i;
1329 for (i = 0; i < open_max; i++) {
1330 if (i != STDIN_FILENO &&
1331 i != STDOUT_FILENO &&
1332 i != STDERR_FILENO &&
1338 *parg++ = (char *)setup_script;
1339 *parg++ = (char *)ifname;
1341 execv(setup_script, args);
1343 } else if (pid > 0) {
1344 while (waitpid(pid, &status, 0) != pid) {
1347 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1349 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1353 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1357 static int net_tap_init(VLANState *vlan, const char *model,
1358 const char *name, const char *ifname1,
1359 const char *setup_script, const char *down_script)
1365 if (ifname1 != NULL)
1366 pstrcpy(ifname, sizeof(ifname), ifname1);
1369 TFR(fd = tap_open(ifname, sizeof(ifname)));
1373 if (!setup_script || !strcmp(setup_script, "no"))
1375 if (setup_script[0] != '\0') {
1376 if (launch_script(setup_script, ifname, fd))
1379 s = net_tap_fd_init(vlan, model, name, fd);
1380 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1381 "ifname=%s,script=%s,downscript=%s",
1382 ifname, setup_script, down_script);
1383 if (down_script && strcmp(down_script, "no")) {
1384 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1385 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1390 #endif /* !_WIN32 */
1392 #if defined(CONFIG_VDE)
1393 typedef struct VDEState {
1394 VLANClientState *vc;
1398 static void vde_to_qemu(void *opaque)
1400 VDEState *s = opaque;
1404 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
1406 qemu_send_packet(s->vc, buf, size);
1410 static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1412 VDEState *s = vc->opaque;
1416 ret = vde_send(s->vde, (const char *)buf, size, 0);
1417 } while (ret < 0 && errno == EINTR);
1422 static void vde_cleanup(VLANClientState *vc)
1424 VDEState *s = vc->opaque;
1425 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1430 static int net_vde_init(VLANState *vlan, const char *model,
1431 const char *name, const char *sock,
1432 int port, const char *group, int mode)
1435 char *init_group = strlen(group) ? (char *)group : NULL;
1436 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1438 struct vde_open_args args = {
1440 .group = init_group,
1444 s = qemu_mallocz(sizeof(VDEState));
1445 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
1450 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
1451 NULL, vde_cleanup, s);
1452 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1453 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1454 sock, vde_datafd(s->vde));
1459 /* network connection */
1460 typedef struct NetSocketState {
1461 VLANClientState *vc;
1463 int state; /* 0 = getting length, 1 = getting data */
1465 unsigned int packet_len;
1467 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1470 typedef struct NetSocketListenState {
1475 } NetSocketListenState;
1477 /* XXX: we consider we can send the whole packet without blocking */
1478 static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1480 NetSocketState *s = vc->opaque;
1484 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1485 return send_all(s->fd, buf, size);
1488 static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
1490 NetSocketState *s = vc->opaque;
1492 return sendto(s->fd, buf, size, 0,
1493 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1496 static void net_socket_send(void *opaque)
1498 NetSocketState *s = opaque;
1504 size = recv(s->fd, buf1, sizeof(buf1), 0);
1506 err = socket_error();
1507 if (err != EWOULDBLOCK)
1509 } else if (size == 0) {
1510 /* end of connection */
1512 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1518 /* reassemble a packet from the network */
1524 memcpy(s->buf + s->index, buf, l);
1528 if (s->index == 4) {
1530 s->packet_len = ntohl(*(uint32_t *)s->buf);
1536 l = s->packet_len - s->index;
1539 if (s->index + l <= sizeof(s->buf)) {
1540 memcpy(s->buf + s->index, buf, l);
1542 fprintf(stderr, "serious error: oversized packet received,"
1543 "connection terminated.\n");
1551 if (s->index >= s->packet_len) {
1552 qemu_send_packet(s->vc, s->buf, s->packet_len);
1561 static void net_socket_send_dgram(void *opaque)
1563 NetSocketState *s = opaque;
1566 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1570 /* end of connection */
1571 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1574 qemu_send_packet(s->vc, s->buf, size);
1577 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1582 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1583 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1584 inet_ntoa(mcastaddr->sin_addr),
1585 (int)ntohl(mcastaddr->sin_addr.s_addr));
1589 fd = socket(PF_INET, SOCK_DGRAM, 0);
1591 perror("socket(PF_INET, SOCK_DGRAM)");
1596 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1597 (const char *)&val, sizeof(val));
1599 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1603 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1609 /* Add host to multicast group */
1610 imr.imr_multiaddr = mcastaddr->sin_addr;
1611 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1613 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1614 (const char *)&imr, sizeof(struct ip_mreq));
1616 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1620 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1622 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1623 (const char *)&val, sizeof(val));
1625 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1629 socket_set_nonblock(fd);
1637 static void net_socket_cleanup(VLANClientState *vc)
1639 NetSocketState *s = vc->opaque;
1640 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1645 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1648 int fd, int is_connected)
1650 struct sockaddr_in saddr;
1652 socklen_t saddr_len;
1655 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1656 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1657 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1661 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1663 if (saddr.sin_addr.s_addr==0) {
1664 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1668 /* clone dgram socket */
1669 newfd = net_socket_mcast_create(&saddr);
1671 /* error already reported by net_socket_mcast_create() */
1675 /* clone newfd to fd, close newfd */
1680 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1681 fd, strerror(errno));
1686 s = qemu_mallocz(sizeof(NetSocketState));
1689 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
1690 NULL, net_socket_cleanup, s);
1691 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1693 /* mcast: save bound address as dst */
1694 if (is_connected) s->dgram_dst=saddr;
1696 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1697 "socket: fd=%d (%s mcast=%s:%d)",
1698 fd, is_connected? "cloned" : "",
1699 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1703 static void net_socket_connect(void *opaque)
1705 NetSocketState *s = opaque;
1706 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1709 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1712 int fd, int is_connected)
1715 s = qemu_mallocz(sizeof(NetSocketState));
1717 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
1718 NULL, net_socket_cleanup, s);
1719 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1720 "socket: fd=%d", fd);
1722 net_socket_connect(s);
1724 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1729 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1730 const char *model, const char *name,
1731 int fd, int is_connected)
1733 int so_type=-1, optlen=sizeof(so_type);
1735 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1736 (socklen_t *)&optlen)< 0) {
1737 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1742 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1744 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1746 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1747 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1748 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1753 static void net_socket_accept(void *opaque)
1755 NetSocketListenState *s = opaque;
1757 struct sockaddr_in saddr;
1762 len = sizeof(saddr);
1763 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1764 if (fd < 0 && errno != EINTR) {
1766 } else if (fd >= 0) {
1770 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1774 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1775 "socket: connection from %s:%d",
1776 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1780 static int net_socket_listen_init(VLANState *vlan,
1783 const char *host_str)
1785 NetSocketListenState *s;
1787 struct sockaddr_in saddr;
1789 if (parse_host_port(&saddr, host_str) < 0)
1792 s = qemu_mallocz(sizeof(NetSocketListenState));
1794 fd = socket(PF_INET, SOCK_STREAM, 0);
1799 socket_set_nonblock(fd);
1801 /* allow fast reuse */
1803 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1805 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1810 ret = listen(fd, 0);
1816 s->model = strdup(model);
1817 s->name = name ? strdup(name) : NULL;
1819 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1823 static int net_socket_connect_init(VLANState *vlan,
1826 const char *host_str)
1829 int fd, connected, ret, err;
1830 struct sockaddr_in saddr;
1832 if (parse_host_port(&saddr, host_str) < 0)
1835 fd = socket(PF_INET, SOCK_STREAM, 0);
1840 socket_set_nonblock(fd);
1844 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1846 err = socket_error();
1847 if (err == EINTR || err == EWOULDBLOCK) {
1848 } else if (err == EINPROGRESS) {
1851 } else if (err == WSAEALREADY) {
1864 s = net_socket_fd_init(vlan, model, name, fd, connected);
1867 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1868 "socket: connect to %s:%d",
1869 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1873 static int net_socket_mcast_init(VLANState *vlan,
1876 const char *host_str)
1880 struct sockaddr_in saddr;
1882 if (parse_host_port(&saddr, host_str) < 0)
1886 fd = net_socket_mcast_create(&saddr);
1890 s = net_socket_fd_init(vlan, model, name, fd, 0);
1894 s->dgram_dst = saddr;
1896 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1897 "socket: mcast=%s:%d",
1898 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1903 typedef struct DumpState {
1904 VLANClientState *pcap_vc;
1909 #define PCAP_MAGIC 0xa1b2c3d4
1911 struct pcap_file_hdr {
1913 uint16_t version_major;
1914 uint16_t version_minor;
1921 struct pcap_sf_pkthdr {
1930 static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1932 DumpState *s = vc->opaque;
1933 struct pcap_sf_pkthdr hdr;
1937 /* Early return in case of previous error. */
1942 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
1943 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1945 hdr.ts.tv_sec = ts / 1000000;
1946 hdr.ts.tv_usec = ts % 1000000;
1947 hdr.caplen = caplen;
1949 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
1950 write(s->fd, buf, caplen) != caplen) {
1951 qemu_log("-net dump write error - stop dump\n");
1959 static void net_dump_cleanup(VLANClientState *vc)
1961 DumpState *s = vc->opaque;
1967 static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
1968 const char *name, const char *filename, int len)
1970 struct pcap_file_hdr hdr;
1973 s = qemu_malloc(sizeof(DumpState));
1975 s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
1977 config_error(mon, "-net dump: can't open %s\n", filename);
1981 s->pcap_caplen = len;
1983 hdr.magic = PCAP_MAGIC;
1984 hdr.version_major = 2;
1985 hdr.version_minor = 4;
1988 hdr.snaplen = s->pcap_caplen;
1991 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
1992 config_error(mon, "-net dump write error: %s\n", strerror(errno));
1998 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL,
1999 net_dump_cleanup, s);
2000 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
2001 "dump to %s (len=%d)", filename, len);
2005 /* find or alloc a new VLAN */
2006 VLANState *qemu_find_vlan(int id)
2008 VLANState **pvlan, *vlan;
2009 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2013 vlan = qemu_mallocz(sizeof(VLANState));
2016 pvlan = &first_vlan;
2017 while (*pvlan != NULL)
2018 pvlan = &(*pvlan)->next;
2023 static int nic_get_free_idx(void)
2027 for (index = 0; index < MAX_NICS; index++)
2028 if (!nd_table[index].used)
2033 void qemu_check_nic_model(NICInfo *nd, const char *model)
2035 const char *models[2];
2040 qemu_check_nic_model_list(nd, models, model);
2043 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
2044 const char *default_model)
2046 int i, exit_status = 0;
2049 nd->model = strdup(default_model);
2051 if (strcmp(nd->model, "?") != 0) {
2052 for (i = 0 ; models[i]; i++)
2053 if (strcmp(nd->model, models[i]) == 0)
2056 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
2060 fprintf(stderr, "qemu: Supported NIC models: ");
2061 for (i = 0 ; models[i]; i++)
2062 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
2067 int net_client_init(Monitor *mon, const char *device, const char *p)
2069 static const char * const fd_params[] = {
2070 "vlan", "name", "fd", NULL
2078 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
2079 vlan_id = strtol(buf, NULL, 0);
2081 vlan = qemu_find_vlan(vlan_id);
2083 if (get_param_value(buf, sizeof(buf), "name", p)) {
2084 name = qemu_strdup(buf);
2086 if (!strcmp(device, "nic")) {
2087 static const char * const nic_params[] = {
2088 "vlan", "name", "macaddr", "model", NULL
2092 int idx = nic_get_free_idx();
2094 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
2095 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2099 if (idx == -1 || nb_nics >= MAX_NICS) {
2100 config_error(mon, "Too Many NICs\n");
2104 nd = &nd_table[idx];
2105 macaddr = nd->macaddr;
2111 macaddr[5] = 0x56 + idx;
2113 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
2114 if (parse_macaddr(macaddr, buf) < 0) {
2115 config_error(mon, "invalid syntax for ethernet address\n");
2120 if (get_param_value(buf, sizeof(buf), "model", p)) {
2121 nd->model = strdup(buf);
2128 vlan->nb_guest_devs++;
2131 if (!strcmp(device, "none")) {
2133 config_error(mon, "'none' takes no parameters\n");
2137 /* does nothing. It is needed to signal that no network cards
2142 if (!strcmp(device, "user")) {
2143 static const char * const slirp_params[] = {
2144 "vlan", "name", "hostname", "restrict", "ip", NULL
2149 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
2150 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2154 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
2155 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
2157 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
2158 restricted = (buf[0] == 'y') ? 1 : 0;
2160 if (get_param_value(buf, sizeof(buf), "ip", p)) {
2161 ip = qemu_strdup(buf);
2163 vlan->nb_host_devs++;
2164 ret = net_slirp_init(vlan, device, name, restricted, ip);
2166 } else if (!strcmp(device, "channel")) {
2168 char name[20], *devname;
2169 struct VMChannel *vmc;
2171 port = strtol(p, &devname, 10);
2173 if (port < 1 || port > 65535) {
2174 config_error(mon, "vmchannel wrong port number\n");
2178 vmc = malloc(sizeof(struct VMChannel));
2179 snprintf(name, 20, "vmchannel%ld", port);
2180 vmc->hd = qemu_chr_open(name, devname, NULL);
2182 config_error(mon, "could not open vmchannel device '%s'\n",
2188 slirp_add_exec(3, vmc->hd, 4, port);
2189 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
2195 if (!strcmp(device, "tap")) {
2196 static const char * const tap_params[] = {
2197 "vlan", "name", "ifname", NULL
2201 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
2202 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2206 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2207 config_error(mon, "tap: no interface name\n");
2211 vlan->nb_host_devs++;
2212 ret = tap_win32_init(vlan, device, name, ifname);
2214 #elif defined (_AIX)
2216 if (!strcmp(device, "tap")) {
2217 char ifname[64], chkbuf[64];
2218 char setup_script[1024], down_script[1024];
2220 vlan->nb_host_devs++;
2221 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2222 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2223 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2227 fd = strtol(buf, NULL, 0);
2228 fcntl(fd, F_SETFL, O_NONBLOCK);
2229 net_tap_fd_init(vlan, device, name, fd);
2232 static const char * const tap_params[] = {
2233 "vlan", "name", "ifname", "script", "downscript", NULL
2235 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
2236 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2240 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2243 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2244 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2246 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2247 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2249 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2253 if (!strcmp(device, "socket")) {
2255 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2257 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2258 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2262 fd = strtol(buf, NULL, 0);
2264 if (net_socket_fd_init(vlan, device, name, fd, 1))
2266 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
2267 static const char * const listen_params[] = {
2268 "vlan", "name", "listen", NULL
2270 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
2271 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2275 ret = net_socket_listen_init(vlan, device, name, buf);
2276 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
2277 static const char * const connect_params[] = {
2278 "vlan", "name", "connect", NULL
2280 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
2281 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2285 ret = net_socket_connect_init(vlan, device, name, buf);
2286 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
2287 static const char * const mcast_params[] = {
2288 "vlan", "name", "mcast", NULL
2290 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
2291 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2295 ret = net_socket_mcast_init(vlan, device, name, buf);
2297 config_error(mon, "Unknown socket options: %s\n", p);
2301 vlan->nb_host_devs++;
2304 if (!strcmp(device, "vde")) {
2305 static const char * const vde_params[] = {
2306 "vlan", "name", "sock", "port", "group", "mode", NULL
2308 char vde_sock[1024], vde_group[512];
2309 int vde_port, vde_mode;
2311 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
2312 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2316 vlan->nb_host_devs++;
2317 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2320 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2321 vde_port = strtol(buf, NULL, 10);
2325 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2326 vde_group[0] = '\0';
2328 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2329 vde_mode = strtol(buf, NULL, 8);
2333 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2336 if (!strcmp(device, "dump")) {
2339 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2340 len = strtol(buf, NULL, 0);
2342 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2343 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2345 ret = net_dump_init(mon, vlan, device, name, buf, len);
2347 config_error(mon, "Unknown network device: %s\n", device);
2352 config_error(mon, "Could not initialize device '%s'\n", device);
2359 void net_client_uninit(NICInfo *nd)
2361 nd->vlan->nb_guest_devs--;
2364 free((void *)nd->model);
2367 static int net_host_check_device(const char *device)
2370 const char *valid_param_list[] = { "tap", "socket", "dump"
2378 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2379 if (!strncmp(valid_param_list[i], device,
2380 strlen(valid_param_list[i])))
2387 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2389 if (!net_host_check_device(device)) {
2390 monitor_printf(mon, "invalid host network device %s\n", device);
2393 if (net_client_init(mon, device, opts ? opts : "") < 0) {
2394 monitor_printf(mon, "adding host network device %s failed\n", device);
2398 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2401 VLANClientState *vc;
2403 vlan = qemu_find_vlan(vlan_id);
2405 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2406 if (!strcmp(vc->name, device)) {
2412 monitor_printf(mon, "can't find device %s\n", device);
2415 if (!net_host_check_device(vc->model)) {
2416 monitor_printf(mon, "invalid host network device %s\n", device);
2419 qemu_del_vlan_client(vc);
2422 int net_client_parse(const char *str)
2430 while (*p != '\0' && *p != ',') {
2431 if ((q - device) < sizeof(device) - 1)
2439 return net_client_init(NULL, device, p);
2442 void do_info_network(Monitor *mon)
2445 VLANClientState *vc;
2447 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2448 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2449 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2450 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2454 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2457 VLANClientState *vc = NULL;
2459 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2460 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2461 if (strcmp(vc->name, name) == 0)
2466 monitor_printf(mon, "could not find network device '%s'", name);
2470 if (strcmp(up_or_down, "up") == 0)
2472 else if (strcmp(up_or_down, "down") == 0)
2475 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2476 "valid\n", up_or_down);
2478 if (vc->link_status_changed)
2479 vc->link_status_changed(vc);
2484 void net_cleanup(void)
2488 /* close network clients */
2489 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2490 VLANClientState *vc = vlan->first_client;
2493 VLANClientState *next = vc->next;
2495 qemu_del_vlan_client(vc);
2502 void net_client_check(void)
2506 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2507 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2509 if (vlan->nb_guest_devs == 0)
2510 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2511 if (vlan->nb_host_devs == 0)
2513 "Warning: vlan %d is not connected to host network\n",