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 static void qemu_flush_queued_packets(VLANClientState *vc)
446 while ((packet = vc->vlan->send_queue) != NULL) {
447 vc->vlan->send_queue = packet->next;
448 qemu_deliver_packet(packet->sender, packet->data, packet->size);
454 qemu_enqueue_packet(VLANClientState *sender, const uint8_t *buf, int size)
458 packet = qemu_malloc(sizeof(VLANPacket) + size);
459 packet->next = sender->vlan->send_queue;
460 packet->sender = sender;
462 memcpy(packet->data, buf, size);
463 sender->vlan->send_queue = packet;
466 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
468 VLANState *vlan = vc->vlan;
474 printf("vlan %d send:\n", vlan->id);
475 hex_dump(stdout, buf, size);
477 if (vlan->delivering) {
478 qemu_enqueue_packet(vc, buf, size);
482 qemu_deliver_packet(vc, buf, size);
483 qemu_flush_queued_packets(vc);
486 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
489 uint8_t buffer[4096];
493 for (i = 0; i < iovcnt; i++) {
496 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
497 memcpy(buffer + offset, iov[i].iov_base, len);
501 vc->receive(vc, buffer, offset);
506 static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
511 for (i = 0; i < iovcnt; i++)
512 offset += iov[i].iov_len;
516 static int qemu_deliver_packet_iov(VLANClientState *sender,
517 const struct iovec *iov, int iovcnt)
522 sender->vlan->delivering = 1;
524 for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
532 ret = calc_iov_length(iov, iovcnt);
536 if (vc->receive_iov) {
537 len = vc->receive_iov(vc, iov, iovcnt);
539 len = vc_sendv_compat(vc, iov, iovcnt);
542 ret = (ret >= 0) ? ret : len;
545 sender->vlan->delivering = 0;
550 static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
551 const struct iovec *iov, int iovcnt)
557 max_len = calc_iov_length(iov, iovcnt);
559 packet = qemu_malloc(sizeof(VLANPacket) + max_len);
560 packet->next = sender->vlan->send_queue;
561 packet->sender = sender;
564 for (i = 0; i < iovcnt; i++) {
565 size_t len = iov[i].iov_len;
567 memcpy(packet->data + packet->size, iov[i].iov_base, len);
571 sender->vlan->send_queue = packet;
576 ssize_t qemu_sendv_packet(VLANClientState *sender, const struct iovec *iov,
581 if (sender->link_down) {
582 return calc_iov_length(iov, iovcnt);
585 if (sender->vlan->delivering) {
586 return qemu_enqueue_packet_iov(sender, iov, iovcnt);
589 ret = qemu_deliver_packet_iov(sender, iov, iovcnt);
591 qemu_flush_queued_packets(sender);
596 static void config_error(Monitor *mon, const char *fmt, ...)
602 monitor_vprintf(mon, fmt, ap);
604 fprintf(stderr, "qemu: ");
605 vfprintf(stderr, fmt, ap);
611 #if defined(CONFIG_SLIRP)
613 /* slirp network adapter */
615 struct slirp_config_str {
616 struct slirp_config_str *next;
620 static int slirp_inited;
621 static struct slirp_config_str *slirp_redirs;
623 static const char *slirp_smb_export;
625 static VLANClientState *slirp_vc;
627 static void slirp_smb(const char *exported_dir);
628 static void slirp_redirection(Monitor *mon, const char *redir_str);
630 int slirp_can_output(void)
632 return !slirp_vc || qemu_can_send_packet(slirp_vc);
635 void slirp_output(const uint8_t *pkt, int pkt_len)
638 printf("slirp output:\n");
639 hex_dump(stdout, pkt, pkt_len);
643 qemu_send_packet(slirp_vc, pkt, pkt_len);
646 int slirp_is_inited(void)
651 static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
654 printf("slirp input:\n");
655 hex_dump(stdout, buf, size);
657 slirp_input(buf, size);
661 static int slirp_in_use;
663 static void net_slirp_cleanup(VLANClientState *vc)
668 static int net_slirp_init(VLANState *vlan, const char *model, const char *name,
669 int restricted, const char *ip)
672 /* slirp only supports a single instance so far */
677 slirp_init(restricted, ip);
679 while (slirp_redirs) {
680 struct slirp_config_str *config = slirp_redirs;
682 slirp_redirection(NULL, config->str);
683 slirp_redirs = config->next;
687 if (slirp_smb_export) {
688 slirp_smb(slirp_smb_export);
693 slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive,
694 NULL, net_slirp_cleanup, NULL);
695 slirp_vc->info_str[0] = '\0';
700 static void net_slirp_redir_print(void *opaque, int is_udp,
701 struct in_addr *laddr, u_int lport,
702 struct in_addr *faddr, u_int fport)
704 Monitor *mon = (Monitor *)opaque;
709 h_addr = ntohl(faddr->s_addr);
710 g_addr = ntohl(laddr->s_addr);
712 monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" );
713 snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff,
714 (h_addr >> 16) & 0xff,
715 (h_addr >> 8) & 0xff,
717 monitor_printf(mon, " %15s |", buf);
718 monitor_printf(mon, " %5d |", fport);
720 snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff,
721 (g_addr >> 16) & 0xff,
722 (g_addr >> 8) & 0xff,
724 monitor_printf(mon, " %15s |", buf);
725 monitor_printf(mon, " %5d\n", lport);
729 static void net_slirp_redir_list(Monitor *mon)
734 monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
735 monitor_printf(mon, " | | | | \n");
736 slirp_redir_loop(net_slirp_redir_print, mon);
739 static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
743 const char *p = port_str;
750 if (!port_str || !port_str[0])
753 get_str_sep(buf, sizeof(buf), &p, ':');
755 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
757 } else if (!strcmp(buf, "udp")) {
765 n = slirp_redir_rm(is_udp, host_port);
767 monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
768 is_udp ? "udp" : "tcp", host_port);
772 monitor_printf(mon, "invalid format\n");
775 static void slirp_redirection(Monitor *mon, const char *redir_str)
777 struct in_addr guest_addr;
778 int host_port, guest_port;
784 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
787 if (!strcmp(buf, "tcp") || buf[0] == '\0') {
789 } else if (!strcmp(buf, "udp")) {
795 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
798 host_port = strtol(buf, &r, 0);
803 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
806 if (buf[0] == '\0') {
807 pstrcpy(buf, sizeof(buf), "10.0.2.15");
809 if (!inet_aton(buf, &guest_addr)) {
813 guest_port = strtol(p, &r, 0);
818 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
819 config_error(mon, "could not set up redirection '%s'\n", redir_str);
824 config_error(mon, "invalid redirection format '%s'\n", redir_str);
827 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
829 struct slirp_config_str *config;
833 monitor_printf(mon, "user mode network stack not in use\n");
835 config = qemu_malloc(sizeof(*config));
836 config->str = redir_str;
837 config->next = slirp_redirs;
838 slirp_redirs = config;
843 if (!strcmp(redir_str, "remove")) {
844 net_slirp_redir_rm(mon, redir_opt2);
848 if (!strcmp(redir_str, "list")) {
849 net_slirp_redir_list(mon);
853 slirp_redirection(mon, redir_str);
858 static char smb_dir[1024];
860 static void erase_dir(char *dir_name)
866 /* erase all the files in the directory */
867 if ((d = opendir(dir_name)) != NULL) {
872 if (strcmp(de->d_name, ".") != 0 &&
873 strcmp(de->d_name, "..") != 0) {
874 snprintf(filename, sizeof(filename), "%s/%s",
875 smb_dir, de->d_name);
876 if (unlink(filename) != 0) /* is it a directory? */
885 /* automatic user mode samba server configuration */
886 static void smb_exit(void)
891 static void slirp_smb(const char *exported_dir)
894 char smb_cmdline[1024];
897 /* XXX: better tmp dir construction */
898 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
899 if (mkdir(smb_dir, 0700) < 0) {
900 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
903 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
905 f = fopen(smb_conf, "w");
907 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
914 "socket address=127.0.0.1\n"
916 "lock directory=%s\n"
917 "log file=%s/log.smbd\n"
918 "smb passwd file=%s/smbpasswd\n"
934 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
935 SMBD_COMMAND, smb_conf);
937 slirp_add_exec(0, smb_cmdline, 4, 139);
940 /* automatic user mode samba server configuration */
941 void net_slirp_smb(const char *exported_dir)
943 if (slirp_smb_export) {
944 fprintf(stderr, "-smb given twice\n");
947 slirp_smb_export = exported_dir;
949 slirp_smb(exported_dir);
953 #endif /* !defined(_WIN32) */
955 void do_info_slirp(Monitor *mon)
965 static int vmchannel_can_read(void *opaque)
967 struct VMChannel *vmc = (struct VMChannel*)opaque;
968 return slirp_socket_can_recv(4, vmc->port);
971 static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
973 struct VMChannel *vmc = (struct VMChannel*)opaque;
974 slirp_socket_recv(4, vmc->port, buf, size);
977 #endif /* CONFIG_SLIRP */
981 typedef struct TAPState {
984 char down_script[1024];
985 char down_script_arg[128];
989 static int launch_script(const char *setup_script, const char *ifname, int fd);
991 static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov,
994 TAPState *s = vc->opaque;
998 len = writev(s->fd, iov, iovcnt);
999 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
1004 static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1006 TAPState *s = vc->opaque;
1010 len = write(s->fd, buf, size);
1011 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
1016 static int tap_can_send(void *opaque)
1018 TAPState *s = opaque;
1020 return qemu_can_send_packet(s->vc);
1024 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1029 sbuf.maxlen = maxlen;
1030 sbuf.buf = (char *)buf;
1032 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
1035 static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
1037 return read(tapfd, buf, maxlen);
1041 static void tap_send(void *opaque)
1043 TAPState *s = opaque;
1046 size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
1048 qemu_send_packet(s->vc, s->buf, size);
1052 static void tap_cleanup(VLANClientState *vc)
1054 TAPState *s = vc->opaque;
1056 if (s->down_script[0])
1057 launch_script(s->down_script, s->down_script_arg, s->fd);
1059 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1066 static TAPState *net_tap_fd_init(VLANState *vlan,
1073 s = qemu_mallocz(sizeof(TAPState));
1075 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
1076 tap_receive_iov, tap_cleanup, s);
1077 qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s);
1078 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
1082 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1083 static int tap_open(char *ifname, int ifname_size)
1089 TFR(fd = open("/dev/tap", O_RDWR));
1091 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1096 dev = devname(s.st_rdev, S_IFCHR);
1097 pstrcpy(ifname, ifname_size, dev);
1099 fcntl(fd, F_SETFL, O_NONBLOCK);
1102 #elif defined(__sun__)
1103 #define TUNNEWPPA (('T'<<16) | 0x0001)
1105 * Allocate TAP device, returns opened fd.
1106 * Stores dev name in the first arg(must be large enough).
1108 static int tap_alloc(char *dev, size_t dev_size)
1110 int tap_fd, if_fd, ppa = -1;
1111 static int ip_fd = 0;
1114 static int arp_fd = 0;
1115 int ip_muxid, arp_muxid;
1116 struct strioctl strioc_if, strioc_ppa;
1117 int link_type = I_PLINK;;
1119 char actual_name[32] = "";
1121 memset(&ifr, 0x0, sizeof(ifr));
1125 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
1129 /* Check if IP device was opened */
1133 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
1135 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
1139 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
1141 syslog(LOG_ERR, "Can't open /dev/tap");
1145 /* Assign a new PPA and get its unit number. */
1146 strioc_ppa.ic_cmd = TUNNEWPPA;
1147 strioc_ppa.ic_timout = 0;
1148 strioc_ppa.ic_len = sizeof(ppa);
1149 strioc_ppa.ic_dp = (char *)&ppa;
1150 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
1151 syslog (LOG_ERR, "Can't assign new interface");
1153 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
1155 syslog(LOG_ERR, "Can't open /dev/tap (2)");
1158 if(ioctl(if_fd, I_PUSH, "ip") < 0){
1159 syslog(LOG_ERR, "Can't push IP module");
1163 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
1164 syslog(LOG_ERR, "Can't get flags\n");
1166 snprintf (actual_name, 32, "tap%d", ppa);
1167 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1170 /* Assign ppa according to the unit number returned by tun device */
1172 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
1173 syslog (LOG_ERR, "Can't set PPA %d", ppa);
1174 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
1175 syslog (LOG_ERR, "Can't get flags\n");
1176 /* Push arp module to if_fd */
1177 if (ioctl (if_fd, I_PUSH, "arp") < 0)
1178 syslog (LOG_ERR, "Can't push ARP module (2)");
1180 /* Push arp module to ip_fd */
1181 if (ioctl (ip_fd, I_POP, NULL) < 0)
1182 syslog (LOG_ERR, "I_POP failed\n");
1183 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
1184 syslog (LOG_ERR, "Can't push ARP module (3)\n");
1186 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
1188 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
1190 /* Set ifname to arp */
1191 strioc_if.ic_cmd = SIOCSLIFNAME;
1192 strioc_if.ic_timout = 0;
1193 strioc_if.ic_len = sizeof(ifr);
1194 strioc_if.ic_dp = (char *)𝔦
1195 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
1196 syslog (LOG_ERR, "Can't set ifname to arp\n");
1199 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
1200 syslog(LOG_ERR, "Can't link TAP device to IP");
1204 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
1205 syslog (LOG_ERR, "Can't link TAP device to ARP");
1209 memset(&ifr, 0x0, sizeof(ifr));
1210 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
1211 ifr.lifr_ip_muxid = ip_muxid;
1212 ifr.lifr_arp_muxid = arp_muxid;
1214 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
1216 ioctl (ip_fd, I_PUNLINK , arp_muxid);
1217 ioctl (ip_fd, I_PUNLINK, ip_muxid);
1218 syslog (LOG_ERR, "Can't set multiplexor id");
1221 snprintf(dev, dev_size, "tap%d", ppa);
1225 static int tap_open(char *ifname, int ifname_size)
1229 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
1230 fprintf(stderr, "Cannot allocate TAP device\n");
1233 pstrcpy(ifname, ifname_size, dev);
1234 fcntl(fd, F_SETFL, O_NONBLOCK);
1237 #elif defined (_AIX)
1238 static int tap_open(char *ifname, int ifname_size)
1240 fprintf (stderr, "no tap on AIX\n");
1244 static int tap_open(char *ifname, int ifname_size)
1249 TFR(fd = open("/dev/net/tun", O_RDWR));
1251 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1254 memset(&ifr, 0, sizeof(ifr));
1255 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1256 if (ifname[0] != '\0')
1257 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
1259 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
1260 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1262 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1266 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1267 fcntl(fd, F_SETFL, O_NONBLOCK);
1272 static int launch_script(const char *setup_script, const char *ifname, int fd)
1274 sigset_t oldmask, mask;
1280 sigaddset(&mask, SIGCHLD);
1281 sigprocmask(SIG_BLOCK, &mask, &oldmask);
1283 /* try to launch network script */
1286 int open_max = sysconf(_SC_OPEN_MAX), i;
1288 for (i = 0; i < open_max; i++) {
1289 if (i != STDIN_FILENO &&
1290 i != STDOUT_FILENO &&
1291 i != STDERR_FILENO &&
1297 *parg++ = (char *)setup_script;
1298 *parg++ = (char *)ifname;
1300 execv(setup_script, args);
1302 } else if (pid > 0) {
1303 while (waitpid(pid, &status, 0) != pid) {
1306 sigprocmask(SIG_SETMASK, &oldmask, NULL);
1308 if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
1312 fprintf(stderr, "%s: could not launch network script\n", setup_script);
1316 static int net_tap_init(VLANState *vlan, const char *model,
1317 const char *name, const char *ifname1,
1318 const char *setup_script, const char *down_script)
1324 if (ifname1 != NULL)
1325 pstrcpy(ifname, sizeof(ifname), ifname1);
1328 TFR(fd = tap_open(ifname, sizeof(ifname)));
1332 if (!setup_script || !strcmp(setup_script, "no"))
1334 if (setup_script[0] != '\0') {
1335 if (launch_script(setup_script, ifname, fd))
1338 s = net_tap_fd_init(vlan, model, name, fd);
1339 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1340 "ifname=%s,script=%s,downscript=%s",
1341 ifname, setup_script, down_script);
1342 if (down_script && strcmp(down_script, "no")) {
1343 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
1344 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
1349 #endif /* !_WIN32 */
1351 #if defined(CONFIG_VDE)
1352 typedef struct VDEState {
1353 VLANClientState *vc;
1357 static void vde_to_qemu(void *opaque)
1359 VDEState *s = opaque;
1363 size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
1365 qemu_send_packet(s->vc, buf, size);
1369 static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1371 VDEState *s = vc->opaque;
1375 ret = vde_send(s->vde, (const char *)buf, size, 0);
1376 } while (ret < 0 && errno == EINTR);
1381 static void vde_cleanup(VLANClientState *vc)
1383 VDEState *s = vc->opaque;
1384 qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
1389 static int net_vde_init(VLANState *vlan, const char *model,
1390 const char *name, const char *sock,
1391 int port, const char *group, int mode)
1394 char *init_group = strlen(group) ? (char *)group : NULL;
1395 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1397 struct vde_open_args args = {
1399 .group = init_group,
1403 s = qemu_mallocz(sizeof(VDEState));
1404 s->vde = vde_open(init_sock, (char *)"QEMU", &args);
1409 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
1410 NULL, vde_cleanup, s);
1411 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1412 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1413 sock, vde_datafd(s->vde));
1418 /* network connection */
1419 typedef struct NetSocketState {
1420 VLANClientState *vc;
1422 int state; /* 0 = getting length, 1 = getting data */
1424 unsigned int packet_len;
1426 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1429 typedef struct NetSocketListenState {
1434 } NetSocketListenState;
1436 /* XXX: we consider we can send the whole packet without blocking */
1437 static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1439 NetSocketState *s = vc->opaque;
1443 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1444 return send_all(s->fd, buf, size);
1447 static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
1449 NetSocketState *s = vc->opaque;
1451 return sendto(s->fd, buf, size, 0,
1452 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1455 static void net_socket_send(void *opaque)
1457 NetSocketState *s = opaque;
1463 size = recv(s->fd, buf1, sizeof(buf1), 0);
1465 err = socket_error();
1466 if (err != EWOULDBLOCK)
1468 } else if (size == 0) {
1469 /* end of connection */
1471 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1477 /* reassemble a packet from the network */
1483 memcpy(s->buf + s->index, buf, l);
1487 if (s->index == 4) {
1489 s->packet_len = ntohl(*(uint32_t *)s->buf);
1495 l = s->packet_len - s->index;
1498 if (s->index + l <= sizeof(s->buf)) {
1499 memcpy(s->buf + s->index, buf, l);
1501 fprintf(stderr, "serious error: oversized packet received,"
1502 "connection terminated.\n");
1510 if (s->index >= s->packet_len) {
1511 qemu_send_packet(s->vc, s->buf, s->packet_len);
1520 static void net_socket_send_dgram(void *opaque)
1522 NetSocketState *s = opaque;
1525 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1529 /* end of connection */
1530 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1533 qemu_send_packet(s->vc, s->buf, size);
1536 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1541 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1542 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1543 inet_ntoa(mcastaddr->sin_addr),
1544 (int)ntohl(mcastaddr->sin_addr.s_addr));
1548 fd = socket(PF_INET, SOCK_DGRAM, 0);
1550 perror("socket(PF_INET, SOCK_DGRAM)");
1555 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1556 (const char *)&val, sizeof(val));
1558 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1562 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1568 /* Add host to multicast group */
1569 imr.imr_multiaddr = mcastaddr->sin_addr;
1570 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1572 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1573 (const char *)&imr, sizeof(struct ip_mreq));
1575 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1579 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1581 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1582 (const char *)&val, sizeof(val));
1584 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1588 socket_set_nonblock(fd);
1596 static void net_socket_cleanup(VLANClientState *vc)
1598 NetSocketState *s = vc->opaque;
1599 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1604 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1607 int fd, int is_connected)
1609 struct sockaddr_in saddr;
1611 socklen_t saddr_len;
1614 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1615 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1616 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1620 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1622 if (saddr.sin_addr.s_addr==0) {
1623 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1627 /* clone dgram socket */
1628 newfd = net_socket_mcast_create(&saddr);
1630 /* error already reported by net_socket_mcast_create() */
1634 /* clone newfd to fd, close newfd */
1639 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1640 fd, strerror(errno));
1645 s = qemu_mallocz(sizeof(NetSocketState));
1648 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
1649 NULL, net_socket_cleanup, s);
1650 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1652 /* mcast: save bound address as dst */
1653 if (is_connected) s->dgram_dst=saddr;
1655 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1656 "socket: fd=%d (%s mcast=%s:%d)",
1657 fd, is_connected? "cloned" : "",
1658 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1662 static void net_socket_connect(void *opaque)
1664 NetSocketState *s = opaque;
1665 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1668 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1671 int fd, int is_connected)
1674 s = qemu_mallocz(sizeof(NetSocketState));
1676 s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
1677 NULL, net_socket_cleanup, s);
1678 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1679 "socket: fd=%d", fd);
1681 net_socket_connect(s);
1683 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1688 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1689 const char *model, const char *name,
1690 int fd, int is_connected)
1692 int so_type=-1, optlen=sizeof(so_type);
1694 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1695 (socklen_t *)&optlen)< 0) {
1696 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1701 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1703 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1705 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1706 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1707 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1712 static void net_socket_accept(void *opaque)
1714 NetSocketListenState *s = opaque;
1716 struct sockaddr_in saddr;
1721 len = sizeof(saddr);
1722 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1723 if (fd < 0 && errno != EINTR) {
1725 } else if (fd >= 0) {
1729 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1733 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1734 "socket: connection from %s:%d",
1735 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1739 static int net_socket_listen_init(VLANState *vlan,
1742 const char *host_str)
1744 NetSocketListenState *s;
1746 struct sockaddr_in saddr;
1748 if (parse_host_port(&saddr, host_str) < 0)
1751 s = qemu_mallocz(sizeof(NetSocketListenState));
1753 fd = socket(PF_INET, SOCK_STREAM, 0);
1758 socket_set_nonblock(fd);
1760 /* allow fast reuse */
1762 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1764 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1769 ret = listen(fd, 0);
1775 s->model = strdup(model);
1776 s->name = name ? strdup(name) : NULL;
1778 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1782 static int net_socket_connect_init(VLANState *vlan,
1785 const char *host_str)
1788 int fd, connected, ret, err;
1789 struct sockaddr_in saddr;
1791 if (parse_host_port(&saddr, host_str) < 0)
1794 fd = socket(PF_INET, SOCK_STREAM, 0);
1799 socket_set_nonblock(fd);
1803 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1805 err = socket_error();
1806 if (err == EINTR || err == EWOULDBLOCK) {
1807 } else if (err == EINPROGRESS) {
1810 } else if (err == WSAEALREADY) {
1823 s = net_socket_fd_init(vlan, model, name, fd, connected);
1826 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1827 "socket: connect to %s:%d",
1828 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1832 static int net_socket_mcast_init(VLANState *vlan,
1835 const char *host_str)
1839 struct sockaddr_in saddr;
1841 if (parse_host_port(&saddr, host_str) < 0)
1845 fd = net_socket_mcast_create(&saddr);
1849 s = net_socket_fd_init(vlan, model, name, fd, 0);
1853 s->dgram_dst = saddr;
1855 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1856 "socket: mcast=%s:%d",
1857 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1862 typedef struct DumpState {
1863 VLANClientState *pcap_vc;
1868 #define PCAP_MAGIC 0xa1b2c3d4
1870 struct pcap_file_hdr {
1872 uint16_t version_major;
1873 uint16_t version_minor;
1880 struct pcap_sf_pkthdr {
1889 static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1891 DumpState *s = vc->opaque;
1892 struct pcap_sf_pkthdr hdr;
1896 /* Early return in case of previous error. */
1901 ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
1902 caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1904 hdr.ts.tv_sec = ts / 1000000;
1905 hdr.ts.tv_usec = ts % 1000000;
1906 hdr.caplen = caplen;
1908 if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
1909 write(s->fd, buf, caplen) != caplen) {
1910 qemu_log("-net dump write error - stop dump\n");
1918 static void net_dump_cleanup(VLANClientState *vc)
1920 DumpState *s = vc->opaque;
1926 static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
1927 const char *name, const char *filename, int len)
1929 struct pcap_file_hdr hdr;
1932 s = qemu_malloc(sizeof(DumpState));
1934 s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
1936 config_error(mon, "-net dump: can't open %s\n", filename);
1940 s->pcap_caplen = len;
1942 hdr.magic = PCAP_MAGIC;
1943 hdr.version_major = 2;
1944 hdr.version_minor = 4;
1947 hdr.snaplen = s->pcap_caplen;
1950 if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
1951 config_error(mon, "-net dump write error: %s\n", strerror(errno));
1957 s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL,
1958 net_dump_cleanup, s);
1959 snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
1960 "dump to %s (len=%d)", filename, len);
1964 /* find or alloc a new VLAN */
1965 VLANState *qemu_find_vlan(int id)
1967 VLANState **pvlan, *vlan;
1968 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1972 vlan = qemu_mallocz(sizeof(VLANState));
1975 pvlan = &first_vlan;
1976 while (*pvlan != NULL)
1977 pvlan = &(*pvlan)->next;
1982 static int nic_get_free_idx(void)
1986 for (index = 0; index < MAX_NICS; index++)
1987 if (!nd_table[index].used)
1992 void qemu_check_nic_model(NICInfo *nd, const char *model)
1994 const char *models[2];
1999 qemu_check_nic_model_list(nd, models, model);
2002 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
2003 const char *default_model)
2005 int i, exit_status = 0;
2008 nd->model = strdup(default_model);
2010 if (strcmp(nd->model, "?") != 0) {
2011 for (i = 0 ; models[i]; i++)
2012 if (strcmp(nd->model, models[i]) == 0)
2015 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
2019 fprintf(stderr, "qemu: Supported NIC models: ");
2020 for (i = 0 ; models[i]; i++)
2021 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
2026 int net_client_init(Monitor *mon, const char *device, const char *p)
2028 static const char * const fd_params[] = {
2029 "vlan", "name", "fd", NULL
2037 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
2038 vlan_id = strtol(buf, NULL, 0);
2040 vlan = qemu_find_vlan(vlan_id);
2042 if (get_param_value(buf, sizeof(buf), "name", p)) {
2043 name = qemu_strdup(buf);
2045 if (!strcmp(device, "nic")) {
2046 static const char * const nic_params[] = {
2047 "vlan", "name", "macaddr", "model", NULL
2051 int idx = nic_get_free_idx();
2053 if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
2054 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2058 if (idx == -1 || nb_nics >= MAX_NICS) {
2059 config_error(mon, "Too Many NICs\n");
2063 nd = &nd_table[idx];
2064 macaddr = nd->macaddr;
2070 macaddr[5] = 0x56 + idx;
2072 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
2073 if (parse_macaddr(macaddr, buf) < 0) {
2074 config_error(mon, "invalid syntax for ethernet address\n");
2079 if (get_param_value(buf, sizeof(buf), "model", p)) {
2080 nd->model = strdup(buf);
2087 vlan->nb_guest_devs++;
2090 if (!strcmp(device, "none")) {
2092 config_error(mon, "'none' takes no parameters\n");
2096 /* does nothing. It is needed to signal that no network cards
2101 if (!strcmp(device, "user")) {
2102 static const char * const slirp_params[] = {
2103 "vlan", "name", "hostname", "restrict", "ip", NULL
2108 if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
2109 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2113 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
2114 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
2116 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
2117 restricted = (buf[0] == 'y') ? 1 : 0;
2119 if (get_param_value(buf, sizeof(buf), "ip", p)) {
2120 ip = qemu_strdup(buf);
2122 vlan->nb_host_devs++;
2123 ret = net_slirp_init(vlan, device, name, restricted, ip);
2125 } else if (!strcmp(device, "channel")) {
2127 char name[20], *devname;
2128 struct VMChannel *vmc;
2130 port = strtol(p, &devname, 10);
2132 if (port < 1 || port > 65535) {
2133 config_error(mon, "vmchannel wrong port number\n");
2137 vmc = malloc(sizeof(struct VMChannel));
2138 snprintf(name, 20, "vmchannel%ld", port);
2139 vmc->hd = qemu_chr_open(name, devname, NULL);
2141 config_error(mon, "could not open vmchannel device '%s'\n",
2147 slirp_add_exec(3, vmc->hd, 4, port);
2148 qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
2154 if (!strcmp(device, "tap")) {
2155 static const char * const tap_params[] = {
2156 "vlan", "name", "ifname", NULL
2160 if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
2161 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2165 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2166 config_error(mon, "tap: no interface name\n");
2170 vlan->nb_host_devs++;
2171 ret = tap_win32_init(vlan, device, name, ifname);
2173 #elif defined (_AIX)
2175 if (!strcmp(device, "tap")) {
2176 char ifname[64], chkbuf[64];
2177 char setup_script[1024], down_script[1024];
2179 vlan->nb_host_devs++;
2180 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2181 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2182 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2186 fd = strtol(buf, NULL, 0);
2187 fcntl(fd, F_SETFL, O_NONBLOCK);
2188 net_tap_fd_init(vlan, device, name, fd);
2191 static const char * const tap_params[] = {
2192 "vlan", "name", "ifname", "script", "downscript", NULL
2194 if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
2195 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2199 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
2202 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
2203 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
2205 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
2206 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
2208 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
2212 if (!strcmp(device, "socket")) {
2214 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
2216 if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
2217 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2221 fd = strtol(buf, NULL, 0);
2223 if (net_socket_fd_init(vlan, device, name, fd, 1))
2225 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
2226 static const char * const listen_params[] = {
2227 "vlan", "name", "listen", NULL
2229 if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
2230 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2234 ret = net_socket_listen_init(vlan, device, name, buf);
2235 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
2236 static const char * const connect_params[] = {
2237 "vlan", "name", "connect", NULL
2239 if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
2240 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2244 ret = net_socket_connect_init(vlan, device, name, buf);
2245 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
2246 static const char * const mcast_params[] = {
2247 "vlan", "name", "mcast", NULL
2249 if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
2250 config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
2254 ret = net_socket_mcast_init(vlan, device, name, buf);
2256 config_error(mon, "Unknown socket options: %s\n", p);
2260 vlan->nb_host_devs++;
2263 if (!strcmp(device, "vde")) {
2264 static const char * const vde_params[] = {
2265 "vlan", "name", "sock", "port", "group", "mode", NULL
2267 char vde_sock[1024], vde_group[512];
2268 int vde_port, vde_mode;
2270 if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
2271 config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
2275 vlan->nb_host_devs++;
2276 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
2279 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
2280 vde_port = strtol(buf, NULL, 10);
2284 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
2285 vde_group[0] = '\0';
2287 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
2288 vde_mode = strtol(buf, NULL, 8);
2292 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
2295 if (!strcmp(device, "dump")) {
2298 if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
2299 len = strtol(buf, NULL, 0);
2301 if (!get_param_value(buf, sizeof(buf), "file", p)) {
2302 snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
2304 ret = net_dump_init(mon, vlan, device, name, buf, len);
2306 config_error(mon, "Unknown network device: %s\n", device);
2311 config_error(mon, "Could not initialize device '%s'\n", device);
2318 void net_client_uninit(NICInfo *nd)
2320 nd->vlan->nb_guest_devs--;
2323 free((void *)nd->model);
2326 static int net_host_check_device(const char *device)
2329 const char *valid_param_list[] = { "tap", "socket", "dump"
2337 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
2338 if (!strncmp(valid_param_list[i], device,
2339 strlen(valid_param_list[i])))
2346 void net_host_device_add(Monitor *mon, const char *device, const char *opts)
2348 if (!net_host_check_device(device)) {
2349 monitor_printf(mon, "invalid host network device %s\n", device);
2352 if (net_client_init(mon, device, opts ? opts : "") < 0) {
2353 monitor_printf(mon, "adding host network device %s failed\n", device);
2357 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
2360 VLANClientState *vc;
2362 vlan = qemu_find_vlan(vlan_id);
2364 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
2365 if (!strcmp(vc->name, device)) {
2371 monitor_printf(mon, "can't find device %s\n", device);
2374 if (!net_host_check_device(vc->model)) {
2375 monitor_printf(mon, "invalid host network device %s\n", device);
2378 qemu_del_vlan_client(vc);
2381 int net_client_parse(const char *str)
2389 while (*p != '\0' && *p != ',') {
2390 if ((q - device) < sizeof(device) - 1)
2398 return net_client_init(NULL, device, p);
2401 void do_info_network(Monitor *mon)
2404 VLANClientState *vc;
2406 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2407 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
2408 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
2409 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
2413 int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
2416 VLANClientState *vc = NULL;
2418 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
2419 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
2420 if (strcmp(vc->name, name) == 0)
2425 monitor_printf(mon, "could not find network device '%s'", name);
2429 if (strcmp(up_or_down, "up") == 0)
2431 else if (strcmp(up_or_down, "down") == 0)
2434 monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
2435 "valid\n", up_or_down);
2437 if (vc->link_status_changed)
2438 vc->link_status_changed(vc);
2443 void net_cleanup(void)
2447 /* close network clients */
2448 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2449 VLANClientState *vc = vlan->first_client;
2452 VLANClientState *next = vc->next;
2454 qemu_del_vlan_client(vc);
2461 void net_client_check(void)
2465 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2466 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
2468 if (vlan->nb_guest_devs == 0)
2469 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
2470 if (vlan->nb_host_devs == 0)
2472 "Warning: vlan %d is not connected to host network\n",