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_purge_queued_packets(VLANClientState *vc)
444 VLANPacket **pp = &vc->vlan->send_queue;
446 while (*pp != NULL) {
447 VLANPacket *packet = *pp;
449 if (packet->sender == vc) {
458 void qemu_flush_queued_packets(VLANClientState *vc)
462 while ((packet = vc->vlan->send_queue) != NULL) {
465 vc->vlan->send_queue = packet->next;
467 ret = qemu_deliver_packet(packet->sender, packet->data, packet->size);
468 if (ret == 0 && packet->sent_cb != NULL) {
469 packet->next = vc->vlan->send_queue;
470 vc->vlan->send_queue = packet;
475 packet->sent_cb(packet->sender);
481 static void qemu_enqueue_packet(VLANClientState *sender,
482 const uint8_t *buf, int size,
483 NetPacketSent *sent_cb)
487 packet = qemu_malloc(sizeof(VLANPacket) + size);
488 packet->next = sender->vlan->send_queue;
489 packet->sender = sender;
491 packet->sent_cb = sent_cb;
492 memcpy(packet->data, buf, size);
493 sender->vlan->send_queue = packet;
496 ssize_t qemu_send_packet_async(VLANClientState *sender,
497 const uint8_t *buf, int size,
498 NetPacketSent *sent_cb)
502 if (sender->link_down) {
507 printf("vlan %d send:\n", sender->vlan->id);
508 hex_dump(stdout, buf, size);
511 if (sender->vlan->delivering) {
512 qemu_enqueue_packet(sender, buf, size, NULL);
516 ret = qemu_deliver_packet(sender, buf, size);
517 if (ret == 0 && sent_cb != NULL) {
518 qemu_enqueue_packet(sender, buf, size, sent_cb);
522 qemu_flush_queued_packets(sender);
527 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
529 qemu_send_packet_async(vc, buf, size, NULL);
532 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
535 uint8_t buffer[4096];
539 for (i = 0; i < iovcnt; i++) {
542 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
543 memcpy(buffer + offset, iov[i].iov_base, len);
547 return vc->receive(vc, buffer, offset);
550 static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
555 for (i = 0; i < iovcnt; i++)
556 offset += iov[i].iov_len;
560 static int qemu_deliver_packet_iov(VLANClientState *sender,
561 const struct iovec *iov, int iovcnt)
566 sender->vlan->delivering = 1;
568 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
576 ret = calc_iov_length(iov, iovcnt);
580 if (vc->receive_iov) {
581 len = vc->receive_iov(vc, iov, iovcnt);
583 len = vc_sendv_compat(vc, iov, iovcnt);
586 ret = (ret >= 0) ? ret : len;
589 sender->vlan->delivering = 0;
594 static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
595 const struct iovec *iov, int iovcnt,
596 NetPacketSent *sent_cb)
602 max_len = calc_iov_length(iov, iovcnt);
604 packet = qemu_malloc(sizeof(VLANPacket) + max_len);
605 packet->next = sender->vlan->send_queue;
606 packet->sender = sender;
607 packet->sent_cb = sent_cb;
610 for (i = 0; i < iovcnt; i++) {
611 size_t len = iov[i].iov_len;
613 memcpy(packet->data + packet->size, iov[i].iov_base, len);
617 sender->vlan->send_queue = packet;
622 ssize_t qemu_sendv_packet_async(VLANClientState *sender,
623 const struct iovec *iov, int iovcnt,
624 NetPacketSent *sent_cb)
628 if (sender->link_down) {
629 return calc_iov_length(iov, iovcnt);
632 if (sender->vlan->delivering) {
633 return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL);
636 ret = qemu_deliver_packet_iov(sender, iov, iovcnt);
637 if (ret == 0 && sent_cb != NULL) {
638 qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb);
642 qemu_flush_queued_packets(sender);
648 qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
650 return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
653 static void config_error(Monitor *mon, const char *fmt, ...)
659 monitor_vprintf(mon, fmt, ap);
661 fprintf(stderr, "qemu: ");
662 vfprintf(stderr, fmt, ap);
668 #if defined(CONFIG_SLIRP)
670 /* slirp network adapter */
672 struct slirp_config_str {
673 struct slirp_config_str *next;
677 static int slirp_inited;
678 static struct slirp_config_str *slirp_redirs;
680 static const char *slirp_smb_export;
682 static VLANClientState *slirp_vc;
685 static void slirp_smb(const char *exported_dir);
687 static void slirp_redirection(Monitor *mon, const char *redir_str);
689 int slirp_can_output(void)
691 return !slirp_vc || qemu_can_send_packet(slirp_vc);
694 void slirp_output(const uint8_t *pkt, int pkt_len)
697 printf("slirp output:\n");
698 hex_dump(stdout, pkt, pkt_len);
702 qemu_send_packet(slirp_vc, pkt, pkt_len);
705 int slirp_is_inited(void)
710 static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
713 printf("slirp input:\n");
714 hex_dump(stdout, buf, size);
716 slirp_input(buf, size);
720 static int slirp_in_use;
722 static void net_slirp_cleanup(VLANClientState *vc)
727 static int net_slirp_init(VLANState *vlan, const char *model, const char *name,
728 int restricted, const char *ip)
731 /* slirp only supports a single instance so far */
736 slirp_init(restricted, ip);
738 while (slirp_redirs) {
739 struct slirp_config_str *config = slirp_redirs;
741 slirp_redirection(NULL, config->str);
742 slirp_redirs = config->next;
746 if (slirp_smb_export) {
747 slirp_smb(slirp_smb_export);
752 slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive,
753 NULL, net_slirp_cleanup, NULL);
754 slirp_vc->info_str[0] = '\0';
759 static void net_slirp_redir_print(void *opaque, int is_udp,
760 struct in_addr *laddr, u_int lport,
761 struct in_addr *faddr, u_int fport)
763 Monitor *mon = (Monitor *)opaque;
768 h_addr = ntohl(faddr->s_addr);
769 g_addr = ntohl(laddr->s_addr);
771 monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" );
772 snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff,
773 (h_addr >> 16) & 0xff,
774 (h_addr >> 8) & 0xff,
776 monitor_printf(mon, " %15s |", buf);
777 monitor_printf(mon, " %5d |", fport);
779 snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff,
780 (g_addr >> 16) & 0xff,
781 (g_addr >> 8) & 0xff,
783 monitor_printf(mon, " %15s |", buf);
784 monitor_printf(mon, " %5d\n", lport);
788 static void net_slirp_redir_list(Monitor *mon)
793 monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
794 monitor_printf(mon, " | | | | \n");
795 slirp_redir_loop(net_slirp_redir_print, mon);
798 static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
802 const char *p = port_str;
809 if (!port_str || !port_str[0])
812 get_str_sep(buf, sizeof(buf), &p, ':');
814 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
816 } else if (!strcmp(buf, "udp")) {
824 n = slirp_redir_rm(is_udp, host_port);
826 monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
827 is_udp ? "udp" : "tcp", host_port);
831 monitor_printf(mon, "invalid format\n");
834 static void slirp_redirection(Monitor *mon, const char *redir_str)
836 struct in_addr guest_addr;
837 int host_port, guest_port;
843 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
846 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
848 } else if (!strcmp(buf, "udp")) {
854 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
857 host_port = strtol(buf, &r, 0);
862 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
865 if (buf[0] == '\0') {
866 pstrcpy(buf, sizeof(buf), "10.0.2.15");
868 if (!inet_aton(buf, &guest_addr)) {
872 guest_port = strtol(p, &r, 0);
877 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
878 config_error(mon, "could not set up redirection '%s'\n", redir_str);
883 config_error(mon, "invalid redirection format '%s'\n", redir_str);
886 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
888 struct slirp_config_str *config;
892 monitor_printf(mon, "user mode network stack not in use\n");
894 config = qemu_malloc(sizeof(*config));
895 config->str = redir_str;
896 config->next = slirp_redirs;
897 slirp_redirs = config;
902 if (!strcmp(redir_str, "remove")) {
903 net_slirp_redir_rm(mon, redir_opt2);
907 if (!strcmp(redir_str, "list")) {
908 net_slirp_redir_list(mon);
912 slirp_redirection(mon, redir_str);
917 static char smb_dir[1024];
919 static void erase_dir(char *dir_name)
925 /* erase all the files in the directory */
926 if ((d = opendir(dir_name)) != NULL) {
931 if (strcmp(de->d_name, ".") != 0 &&
932 strcmp(de->d_name, "..") != 0) {
933 snprintf(filename, sizeof(filename), "%s/%s",
934 smb_dir, de->d_name);
935 if (unlink(filename) != 0) /* is it a directory? */
944 /* automatic user mode samba server configuration */
945 static void smb_exit(void)
950 static void slirp_smb(const char *exported_dir)
953 char smb_cmdline[1024];
956 /* XXX: better tmp dir construction */
957 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
958 if (mkdir(smb_dir, 0700) < 0) {
959 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
962 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
964 f = fopen(smb_conf, "w");
966 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
973 "socket address=127.0.0.1\n"
975 "lock directory=%s\n"
976 "log file=%s/log.smbd\n"
977 "smb passwd file=%s/smbpasswd\n"
993 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
994 SMBD_COMMAND, smb_conf);
996 slirp_add_exec(0, smb_cmdline, 4, 139);
999 /* automatic user mode samba server configuration */
1000 void net_slirp_smb(const char *exported_dir)
1002 if (slirp_smb_export) {
1003 fprintf(stderr, "-smb given twice\n");
1006 slirp_smb_export = exported_dir;
1008 slirp_smb(exported_dir);
1012 #endif /* !defined(_WIN32) */
1014 void do_info_slirp(Monitor *mon)
1020 CharDriverState *hd;
1024 static int vmchannel_can_read(void *opaque)
1026 struct VMChannel *vmc = (struct VMChannel*)opaque;
1027 return slirp_socket_can_recv(4, vmc->port);
1030 static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
1032 struct VMChannel *vmc = (struct VMChannel*)opaque;
1033 slirp_socket_recv(4, vmc->port, buf, size);
1036 #endif /* CONFIG_SLIRP */
1038 #if !defined(_WIN32)
1040 typedef struct TAPState {
1041 VLANClientState *vc;
1043 char down_script[1024];
1044 char down_script_arg[128];
1046 unsigned int read_poll : 1;
1047 unsigned int write_poll : 1;
1050 static int launch_script(const char *setup_script, const char *ifname, int fd);
1052 static int tap_can_send(void *opaque);
1053 static void tap_send(void *opaque);
1054 static void tap_writable(void *opaque);
1056 static void tap_update_fd_handler(TAPState *s)
1058 qemu_set_fd_handler2(s->fd,
1059 s->read_poll ? tap_can_send : NULL,
1060 s->read_poll ? tap_send : NULL,
1061 s->write_poll ? tap_writable : NULL,
1065 static void tap_read_poll(TAPState *s, int enable)
1067 s->read_poll = !!enable;
1068 tap_update_fd_handler(s);
1071 static void tap_write_poll(TAPState *s, int enable)
1073 s->write_poll = !!enable;
1074 tap_update_fd_handler(s);
1077 static void tap_writable(void *opaque)
1079 TAPState *s = opaque;
1081 tap_write_poll(s, 0);
1083 qemu_flush_queued_packets(s->vc);
1086 static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov,
1089 TAPState *s = vc->opaque;
1093 len = writev(s->fd, iov, iovcnt);
1094 } while (len == -1 && errno == EINTR);
1096 if (len == -1 && errno == EAGAIN) {
1097 tap_write_poll(s, 1);
1104 static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1106 TAPState *s = vc->opaque;
1110 len = write(s->fd, buf, size);
1111 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
1116 static int tap_can_send(void *opaque)
1118 TAPState *s = opaque;
1120 return qemu_can_send_packet(s->vc);
1124 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1129 sbuf.maxlen = maxlen;
1130 sbuf.buf = (char *)buf;
1132 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
1135 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1137 return read(tapfd, buf, maxlen);
1141 static void tap_send_completed(VLANClientState *vc)
1143 TAPState *s = vc->opaque;
1144 tap_read_poll(s, 1);
1147 static void tap_send(void *opaque)
1149 TAPState *s = opaque;
1153 size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
1158 size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed);
1160 tap_read_poll(s, 0);
1165 static void tap_cleanup(VLANClientState *vc)
1167 TAPState *s = vc->opaque;
1169 qemu_purge_queued_packets(vc);
1171 if (s->down_script[0])
1172 launch_script(s->down_script, s->down_script_arg, s->fd);
1174 tap_read_poll(s, 0);
1175 tap_write_poll(s, 0);
1182 static TAPState *net_tap_fd_init(VLANState *vlan,
1189 s = qemu_mallocz(sizeof(TAPState));
1191 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
1192 tap_receive_iov, tap_cleanup, s);
1193 tap_read_poll(s, 1);
1194 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
1198 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1199 static int tap_open(char *ifname, int ifname_size)
1205 TFR(fd = open("/dev/tap", O_RDWR));
1207 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1212 dev = devname(s.st_rdev, S_IFCHR);
1213 pstrcpy(ifname, ifname_size, dev);
1215 fcntl(fd, F_SETFL, O_NONBLOCK);
1218 #elif defined(__sun__)
1219 #define TUNNEWPPA (('T'<<16) | 0x0001)
1221 * Allocate TAP device, returns opened fd.
1222 * Stores dev name in the first arg(must be large enough).
1224 static int tap_alloc(char *dev, size_t dev_size)
1226 int tap_fd, if_fd, ppa = -1;
1227 static int ip_fd = 0;
1230 static int arp_fd = 0;
1231 int ip_muxid, arp_muxid;
1232 struct strioctl strioc_if, strioc_ppa;
1233 int link_type = I_PLINK;;
1235 char actual_name[32] = "";
1237 memset(&ifr, 0x0, sizeof(ifr));
1241 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
1245 /* Check if IP device was opened */
1249 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1251 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1255 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1257 syslog(LOG_ERR, "Can't open /dev/tap");
1261 /* Assign a new PPA and get its unit number. */
1262 strioc_ppa.ic_cmd = TUNNEWPPA;
1263 strioc_ppa.ic_timout = 0;
1264 strioc_ppa.ic_len = sizeof(ppa);
1265 strioc_ppa.ic_dp = (char *)&ppa;
1266 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1267 syslog (LOG_ERR, "Can't assign new interface");
1269 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1271 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1274 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1275 syslog(LOG_ERR, "Can't push IP module");
1279 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1280 syslog(LOG_ERR, "Can't get flags\n");
1282 snprintf (actual_name, 32, "tap%d", ppa);
1283 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1286 /* Assign ppa according to the unit number returned by tun device */
1288 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1289 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1290 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1291 syslog (LOG_ERR, "Can't get flags\n");
1292 /* Push arp module to if_fd */
1293 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1294 syslog (LOG_ERR, "Can't push ARP module (2)");
1296 /* Push arp module to ip_fd */
1297 if (ioctl (ip_fd, I_POP, NULL) < 0)
1298 syslog (LOG_ERR, "I_POP failed\n");
1299 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1300 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1302 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1304 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1306 /* Set ifname to arp */
1307 strioc_if.ic_cmd = SIOCSLIFNAME;
1308 strioc_if.ic_timout = 0;
1309 strioc_if.ic_len = sizeof(ifr);
1310 strioc_if.ic_dp = (char *)𝔦
1311 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1312 syslog (LOG_ERR, "Can't set ifname to arp\n");
1315 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1316 syslog(LOG_ERR, "Can't link TAP device to IP");
1320 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1321 syslog (LOG_ERR, "Can't link TAP device to ARP");
1325 memset(&ifr, 0x0, sizeof(ifr));
1326 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1327 ifr.lifr_ip_muxid = ip_muxid;
1328 ifr.lifr_arp_muxid = arp_muxid;
1330 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1332 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1333 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1334 syslog (LOG_ERR, "Can't set multiplexor id");
1337 snprintf(dev, dev_size, "tap%d", ppa);
1341 static int tap_open(char *ifname, int ifname_size)
1345 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1346 fprintf(stderr, "Cannot allocate TAP device\n");
1349 pstrcpy(ifname, ifname_size, dev);
1350 fcntl(fd, F_SETFL, O_NONBLOCK);
1353 #elif defined (_AIX)
1354 static int tap_open(char *ifname, int ifname_size)
1356 fprintf (stderr, "no tap on AIX\n");
1360 static int tap_open(char *ifname, int ifname_size)
1365 TFR(fd = open("/dev/net/tun", O_RDWR));
1367 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1370 memset(&ifr, 0, sizeof(ifr));
1371 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1372 if (ifname[0] != '\0')
1373 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1375 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1376 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1378 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1382 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1383 fcntl(fd, F_SETFL, O_NONBLOCK);
1388 static int launch_script(const char *setup_script, const char *ifname, int fd)
1390 sigset_t oldmask, mask;
1396 sigaddset(&mask, SIGCHLD);
1397 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1399 /* try to launch network script */
1402 int open_max = sysconf(_SC_OPEN_MAX), i;
1404 for (i = 0; i < open_max; i++) {
1405 if (i != STDIN_FILENO &&
1406 i != STDOUT_FILENO &&
1407 i != STDERR_FILENO &&
1413 *parg++ = (char *)setup_script;
1414 *parg++ = (char *)ifname;
1416 execv(setup_script, args);
1418 } else if (pid > 0) {
1419 while (waitpid(pid, &status, 0) != pid) {
1422 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1424 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1428 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1432 static int net_tap_init(VLANState *vlan, const char *model,
1433 const char *name, const char *ifname1,
1434 const char *setup_script, const char *down_script)
1440 if (ifname1 != NULL)
1441 pstrcpy(ifname, sizeof(ifname), ifname1);
1444 TFR(fd = tap_open(ifname, sizeof(ifname)));
1448 if (!setup_script || !strcmp(setup_script, "no"))
1450 if (setup_script[0] != '\0') {
1451 if (launch_script(setup_script, ifname, fd))
1454 s = net_tap_fd_init(vlan, model, name, fd);
1455 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1456 "ifname=%s,script=%s,downscript=%s",
1457 ifname, setup_script, down_script);
1458 if (down_script && strcmp(down_script, "no")) {
1459 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1460 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1465 #endif /* !_WIN32 */
1467 #if defined(CONFIG_VDE)
1468 typedef struct VDEState {
1469 VLANClientState *vc;
1473 static void vde_to_qemu(void *opaque)
1475 VDEState *s = opaque;
1479 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
1481 qemu_send_packet(s->vc, buf, size);
1485 static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1487 VDEState *s = vc->opaque;
1491 ret = vde_send(s->vde, (const char *)buf, size, 0);
1492 } while (ret < 0 && errno == EINTR);
1497 static void vde_cleanup(VLANClientState *vc)
1499 VDEState *s = vc->opaque;
1500 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1505 static int net_vde_init(VLANState *vlan, const char *model,
1506 const char *name, const char *sock,
1507 int port, const char *group, int mode)
1510 char *init_group = strlen(group) ? (char *)group : NULL;
1511 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1513 struct vde_open_args args = {
1515 .group = init_group,
1519 s = qemu_mallocz(sizeof(VDEState));
1520 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
1525 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
1526 NULL, vde_cleanup, s);
1527 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1528 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1529 sock, vde_datafd(s->vde));
1534 /* network connection */
1535 typedef struct NetSocketState {
1536 VLANClientState *vc;
1538 int state; /* 0 = getting length, 1 = getting data */
1540 unsigned int packet_len;
1542 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1545 typedef struct NetSocketListenState {
1550 } NetSocketListenState;
1552 /* XXX: we consider we can send the whole packet without blocking */
1553 static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1555 NetSocketState *s = vc->opaque;
1559 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1560 return send_all(s->fd, buf, size);
1563 static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
1565 NetSocketState *s = vc->opaque;
1567 return sendto(s->fd, (const void *)buf, size, 0,
1568 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1571 static void net_socket_send(void *opaque)
1573 NetSocketState *s = opaque;
1579 size = recv(s->fd, (void *)buf1, sizeof(buf1), 0);
1581 err = socket_error();
1582 if (err != EWOULDBLOCK)
1584 } else if (size == 0) {
1585 /* end of connection */
1587 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1593 /* reassemble a packet from the network */
1599 memcpy(s->buf + s->index, buf, l);
1603 if (s->index == 4) {
1605 s->packet_len = ntohl(*(uint32_t *)s->buf);
1611 l = s->packet_len - s->index;
1614 if (s->index + l <= sizeof(s->buf)) {
1615 memcpy(s->buf + s->index, buf, l);
1617 fprintf(stderr, "serious error: oversized packet received,"
1618 "connection terminated.\n");
1626 if (s->index >= s->packet_len) {
1627 qemu_send_packet(s->vc, s->buf, s->packet_len);
1636 static void net_socket_send_dgram(void *opaque)
1638 NetSocketState *s = opaque;
1641 size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
1645 /* end of connection */
1646 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1649 qemu_send_packet(s->vc, s->buf, size);
1652 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1657 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1658 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1659 inet_ntoa(mcastaddr->sin_addr),
1660 (int)ntohl(mcastaddr->sin_addr.s_addr));
1664 fd = socket(PF_INET, SOCK_DGRAM, 0);
1666 perror("socket(PF_INET, SOCK_DGRAM)");
1671 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1672 (const char *)&val, sizeof(val));
1674 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1678 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1684 /* Add host to multicast group */
1685 imr.imr_multiaddr = mcastaddr->sin_addr;
1686 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1688 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1689 (const char *)&imr, sizeof(struct ip_mreq));
1691 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1695 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1697 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1698 (const char *)&val, sizeof(val));
1700 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1704 socket_set_nonblock(fd);
1712 static void net_socket_cleanup(VLANClientState *vc)
1714 NetSocketState *s = vc->opaque;
1715 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1720 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1723 int fd, int is_connected)
1725 struct sockaddr_in saddr;
1727 socklen_t saddr_len;
1730 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1731 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1732 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1736 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1738 if (saddr.sin_addr.s_addr==0) {
1739 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1743 /* clone dgram socket */
1744 newfd = net_socket_mcast_create(&saddr);
1746 /* error already reported by net_socket_mcast_create() */
1750 /* clone newfd to fd, close newfd */
1755 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1756 fd, strerror(errno));
1761 s = qemu_mallocz(sizeof(NetSocketState));
1764 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
1765 NULL, net_socket_cleanup, s);
1766 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1768 /* mcast: save bound address as dst */
1769 if (is_connected) s->dgram_dst=saddr;
1771 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1772 "socket: fd=%d (%s mcast=%s:%d)",
1773 fd, is_connected? "cloned" : "",
1774 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1778 static void net_socket_connect(void *opaque)
1780 NetSocketState *s = opaque;
1781 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1784 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1787 int fd, int is_connected)
1790 s = qemu_mallocz(sizeof(NetSocketState));
1792 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
1793 NULL, net_socket_cleanup, s);
1794 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1795 "socket: fd=%d", fd);
1797 net_socket_connect(s);
1799 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1804 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1805 const char *model, const char *name,
1806 int fd, int is_connected)
1808 int so_type=-1, optlen=sizeof(so_type);
1810 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1811 (socklen_t *)&optlen)< 0) {
1812 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1817 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1819 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1821 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1822 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1823 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1828 static void net_socket_accept(void *opaque)
1830 NetSocketListenState *s = opaque;
1832 struct sockaddr_in saddr;
1837 len = sizeof(saddr);
1838 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1839 if (fd < 0 && errno != EINTR) {
1841 } else if (fd >= 0) {
1845 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1849 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1850 "socket: connection from %s:%d",
1851 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1855 static int net_socket_listen_init(VLANState *vlan,
1858 const char *host_str)
1860 NetSocketListenState *s;
1862 struct sockaddr_in saddr;
1864 if (parse_host_port(&saddr, host_str) < 0)
1867 s = qemu_mallocz(sizeof(NetSocketListenState));
1869 fd = socket(PF_INET, SOCK_STREAM, 0);
1874 socket_set_nonblock(fd);
1876 /* allow fast reuse */
1878 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1880 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1885 ret = listen(fd, 0);
1891 s->model = strdup(model);
1892 s->name = name ? strdup(name) : NULL;
1894 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1898 static int net_socket_connect_init(VLANState *vlan,
1901 const char *host_str)
1904 int fd, connected, ret, err;
1905 struct sockaddr_in saddr;
1907 if (parse_host_port(&saddr, host_str) < 0)
1910 fd = socket(PF_INET, SOCK_STREAM, 0);
1915 socket_set_nonblock(fd);
1919 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1921 err = socket_error();
1922 if (err == EINTR || err == EWOULDBLOCK) {
1923 } else if (err == EINPROGRESS) {
1926 } else if (err == WSAEALREADY) {
1939 s = net_socket_fd_init(vlan, model, name, fd, connected);
1942 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1943 "socket: connect to %s:%d",
1944 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1948 static int net_socket_mcast_init(VLANState *vlan,
1951 const char *host_str)
1955 struct sockaddr_in saddr;
1957 if (parse_host_port(&saddr, host_str) < 0)
1961 fd = net_socket_mcast_create(&saddr);
1965 s = net_socket_fd_init(vlan, model, name, fd, 0);
1969 s->dgram_dst = saddr;
1971 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1972 "socket: mcast=%s:%d",
1973 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1978 typedef struct DumpState {
1979 VLANClientState *pcap_vc;
1984 #define PCAP_MAGIC 0xa1b2c3d4
1986 struct pcap_file_hdr {
1988 uint16_t version_major;
1989 uint16_t version_minor;
1996 struct pcap_sf_pkthdr {
2005 static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
2007 DumpState *s = vc->opaque;
2008 struct pcap_sf_pkthdr hdr;
2012 /* Early return in case of previous error. */
2017 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
2018 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
2020 hdr.ts.tv_sec = ts / 1000000;
2021 hdr.ts.tv_usec = ts % 1000000;
2022 hdr.caplen = caplen;
2024 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
2025 write(s->fd, buf, caplen) != caplen) {
2026 qemu_log("-net dump write error - stop dump\n");
2034 static void net_dump_cleanup(VLANClientState *vc)
2036 DumpState *s = vc->opaque;
2042 static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
2043 const char *name, const char *filename, int len)
2045 struct pcap_file_hdr hdr;
2048 s = qemu_malloc(sizeof(DumpState));
2050 s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
2052 config_error(mon, "-net dump: can't open %s\n", filename);
2056 s->pcap_caplen = len;
2058 hdr.magic = PCAP_MAGIC;
2059 hdr.version_major = 2;
2060 hdr.version_minor = 4;
2063 hdr.snaplen = s->pcap_caplen;
2066 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
2067 config_error(mon, "-net dump write error: %s\n", strerror(errno));
2073 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL,
2074 net_dump_cleanup, s);
2075 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
2076 "dump to %s (len=%d)", filename, len);
2080 /* find or alloc a new VLAN */
2081 VLANState *qemu_find_vlan(int id)
2083 VLANState **pvlan, *vlan;
2084 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2088 vlan = qemu_mallocz(sizeof(VLANState));
2091 pvlan = &first_vlan;
2092 while (*pvlan != NULL)
2093 pvlan = &(*pvlan)->next;
2098 static int nic_get_free_idx(void)
2102 for (index = 0; index < MAX_NICS; index++)
2103 if (!nd_table[index].used)
2108 void qemu_check_nic_model(NICInfo *nd, const char *model)
2110 const char *models[2];
2115 qemu_check_nic_model_list(nd, models, model);
2118 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
2119 const char *default_model)
2121 int i, exit_status = 0;
2124 nd->model = strdup(default_model);
2126 if (strcmp(nd->model, "?") != 0) {
2127 for (i = 0 ; models[i]; i++)
2128 if (strcmp(nd->model, models[i]) == 0)
2131 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
2135 fprintf(stderr, "qemu: Supported NIC models: ");
2136 for (i = 0 ; models[i]; i++)
2137 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
2142 int net_client_init(Monitor *mon, const char *device, const char *p)
2144 static const char * const fd_params[] = {
2145 "vlan", "name", "fd", NULL
2153 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
2154 vlan_id = strtol(buf, NULL, 0);
2156 vlan = qemu_find_vlan(vlan_id);
2158 if (get_param_value(buf, sizeof(buf), "name", p)) {
2159 name = qemu_strdup(buf);
2161 if (!strcmp(device, "nic")) {
2162 static const char * const nic_params[] = {
2163 "vlan", "name", "macaddr", "model", "addr", NULL
2167 int idx = nic_get_free_idx();
2169 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
2170 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2174 if (idx == -1 || nb_nics >= MAX_NICS) {
2175 config_error(mon, "Too Many NICs\n");
2179 nd = &nd_table[idx];
2180 macaddr = nd->macaddr;
2186 macaddr[5] = 0x56 + idx;
2188 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
2189 if (parse_macaddr(macaddr, buf) < 0) {
2190 config_error(mon, "invalid syntax for ethernet address\n");
2195 if (get_param_value(buf, sizeof(buf), "model", p)) {
2196 nd->model = strdup(buf);
2198 if (get_param_value(buf, sizeof(buf), "addr", p)) {
2199 nd->devaddr = strdup(buf);
2206 vlan->nb_guest_devs++;
2209 if (!strcmp(device, "none")) {
2211 config_error(mon, "'none' takes no parameters\n");
2215 /* does nothing. It is needed to signal that no network cards
2220 if (!strcmp(device, "user")) {
2221 static const char * const slirp_params[] = {
2222 "vlan", "name", "hostname", "restrict", "ip", NULL
2227 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
2228 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2232 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
2233 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
2235 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
2236 restricted = (buf[0] == 'y') ? 1 : 0;
2238 if (get_param_value(buf, sizeof(buf), "ip", p)) {
2239 ip = qemu_strdup(buf);
2241 vlan->nb_host_devs++;
2242 ret = net_slirp_init(vlan, device, name, restricted, ip);
2244 } else if (!strcmp(device, "channel")) {
2246 char name[20], *devname;
2247 struct VMChannel *vmc;
2249 port = strtol(p, &devname, 10);
2251 if (port < 1 || port > 65535) {
2252 config_error(mon, "vmchannel wrong port number\n");
2256 vmc = malloc(sizeof(struct VMChannel));
2257 snprintf(name, 20, "vmchannel%ld", port);
2258 vmc->hd = qemu_chr_open(name, devname, NULL);
2260 config_error(mon, "could not open vmchannel device '%s'\n",
2266 slirp_add_exec(3, vmc->hd, 4, port);
2267 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
2273 if (!strcmp(device, "tap")) {
2274 static const char * const tap_params[] = {
2275 "vlan", "name", "ifname", NULL
2279 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
2280 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2284 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2285 config_error(mon, "tap: no interface name\n");
2289 vlan->nb_host_devs++;
2290 ret = tap_win32_init(vlan, device, name, ifname);
2292 #elif defined (_AIX)
2294 if (!strcmp(device, "tap")) {
2295 char ifname[64], chkbuf[64];
2296 char setup_script[1024], down_script[1024];
2298 vlan->nb_host_devs++;
2299 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2300 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2301 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2305 fd = strtol(buf, NULL, 0);
2306 fcntl(fd, F_SETFL, O_NONBLOCK);
2307 net_tap_fd_init(vlan, device, name, fd);
2310 static const char * const tap_params[] = {
2311 "vlan", "name", "ifname", "script", "downscript", NULL
2313 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
2314 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2318 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2321 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2322 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2324 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2325 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2327 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2331 if (!strcmp(device, "socket")) {
2333 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2335 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2336 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2340 fd = strtol(buf, NULL, 0);
2342 if (net_socket_fd_init(vlan, device, name, fd, 1))
2344 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
2345 static const char * const listen_params[] = {
2346 "vlan", "name", "listen", NULL
2348 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
2349 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2353 ret = net_socket_listen_init(vlan, device, name, buf);
2354 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
2355 static const char * const connect_params[] = {
2356 "vlan", "name", "connect", NULL
2358 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
2359 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2363 ret = net_socket_connect_init(vlan, device, name, buf);
2364 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
2365 static const char * const mcast_params[] = {
2366 "vlan", "name", "mcast", NULL
2368 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
2369 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2373 ret = net_socket_mcast_init(vlan, device, name, buf);
2375 config_error(mon, "Unknown socket options: %s\n", p);
2379 vlan->nb_host_devs++;
2382 if (!strcmp(device, "vde")) {
2383 static const char * const vde_params[] = {
2384 "vlan", "name", "sock", "port", "group", "mode", NULL
2386 char vde_sock[1024], vde_group[512];
2387 int vde_port, vde_mode;
2389 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
2390 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2394 vlan->nb_host_devs++;
2395 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2398 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2399 vde_port = strtol(buf, NULL, 10);
2403 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2404 vde_group[0] = '\0';
2406 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2407 vde_mode = strtol(buf, NULL, 8);
2411 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2414 if (!strcmp(device, "dump")) {
2417 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2418 len = strtol(buf, NULL, 0);
2420 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2421 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2423 ret = net_dump_init(mon, vlan, device, name, buf, len);
2425 config_error(mon, "Unknown network device: %s\n", device);
2430 config_error(mon, "Could not initialize device '%s'\n", device);
2437 void net_client_uninit(NICInfo *nd)
2439 nd->vlan->nb_guest_devs--;
2442 free((void *)nd->model);
2445 static int net_host_check_device(const char *device)
2448 const char *valid_param_list[] = { "tap", "socket", "dump"
2456 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2457 if (!strncmp(valid_param_list[i], device,
2458 strlen(valid_param_list[i])))
2465 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2467 if (!net_host_check_device(device)) {
2468 monitor_printf(mon, "invalid host network device %s\n", device);
2471 if (net_client_init(mon, device, opts ? opts : "") < 0) {
2472 monitor_printf(mon, "adding host network device %s failed\n", device);
2476 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2479 VLANClientState *vc;
2481 vlan = qemu_find_vlan(vlan_id);
2483 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2484 if (!strcmp(vc->name, device)) {
2490 monitor_printf(mon, "can't find device %s\n", device);
2493 if (!net_host_check_device(vc->model)) {
2494 monitor_printf(mon, "invalid host network device %s\n", device);
2497 qemu_del_vlan_client(vc);
2500 int net_client_parse(const char *str)
2508 while (*p != '\0' && *p != ',') {
2509 if ((q - device) < sizeof(device) - 1)
2517 return net_client_init(NULL, device, p);
2520 void net_set_boot_mask(int net_boot_mask)
2524 /* Only the first four NICs may be bootable */
2525 net_boot_mask = net_boot_mask & 0xF;
2527 for (i = 0; i < nb_nics; i++) {
2528 if (net_boot_mask & (1 << i)) {
2529 nd_table[i].bootable = 1;
2530 net_boot_mask &= ~(1 << i);
2534 if (net_boot_mask) {
2535 fprintf(stderr, "Cannot boot from non-existent NIC\n");
2540 void do_info_network(Monitor *mon)
2543 VLANClientState *vc;
2545 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2546 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2547 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2548 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2552 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2555 VLANClientState *vc = NULL;
2557 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2558 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2559 if (strcmp(vc->name, name) == 0)
2564 monitor_printf(mon, "could not find network device '%s'", name);
2568 if (strcmp(up_or_down, "up") == 0)
2570 else if (strcmp(up_or_down, "down") == 0)
2573 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2574 "valid\n", up_or_down);
2576 if (vc->link_status_changed)
2577 vc->link_status_changed(vc);
2582 void net_cleanup(void)
2586 /* close network clients */
2587 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2588 VLANClientState *vc = vlan->first_client;
2591 VLANClientState *next = vc->next;
2593 qemu_del_vlan_client(vc);
2600 void net_client_check(void)
2604 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2605 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2607 if (vlan->nb_guest_devs == 0)
2608 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2609 if (vlan->nb_host_devs == 0)
2611 "Warning: vlan %d is not connected to host network\n",