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
24 #include "qemu-common.h"
28 #include "qemu-timer.h"
29 #include "qemu-char.h"
30 #include "audio/audio.h"
41 #include <sys/times.h>
45 #include <sys/ioctl.h>
46 #include <sys/resource.h>
47 #include <sys/socket.h>
48 #include <netinet/in.h>
51 #include <net/if_tap.h>
54 #include <linux/if_tun.h>
56 #include <arpa/inet.h>
59 #include <sys/select.h>
67 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
68 #include <freebsd/stdlib.h>
73 #include <linux/rtc.h>
75 /* For the benefit of older linux systems which don't supply it,
76 we use a local copy of hpet.h. */
77 /* #include <linux/hpet.h> */
80 #include <linux/ppdev.h>
81 #include <linux/parport.h>
85 #include <sys/ethernet.h>
86 #include <sys/sockio.h>
87 #include <netinet/arp.h>
88 #include <netinet/in.h>
89 #include <netinet/in_systm.h>
90 #include <netinet/ip.h>
91 #include <netinet/ip_icmp.h> // must come after ip.h
92 #include <netinet/udp.h>
93 #include <netinet/tcp.h>
101 #include "qemu_socket.h"
103 #if defined(CONFIG_SLIRP)
104 #include "libslirp.h"
107 #if defined(__OpenBSD__)
111 #if defined(CONFIG_VDE)
112 #include <libvdeplug.h>
117 #include <sys/timeb.h>
118 #include <mmsystem.h>
119 #define getopt_long_only getopt_long
120 #define memalign(align, size) malloc(size)
123 static VLANState *first_vlan;
125 /***********************************************************/
126 /* network device redirectors */
128 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
129 static void hex_dump(FILE *f, const uint8_t *buf, int size)
133 for(i=0;i<size;i+=16) {
137 fprintf(f, "%08x ", i);
140 fprintf(f, " %02x", buf[i+j]);
147 if (c < ' ' || c > '~')
156 static int parse_macaddr(uint8_t *macaddr, const char *p)
163 offset = strtol(p, &last_char, 0);
164 if (0 == errno && '\0' == *last_char &&
165 offset >= 0 && offset <= 0xFFFFFF) {
166 macaddr[3] = (offset & 0xFF0000) >> 16;
167 macaddr[4] = (offset & 0xFF00) >> 8;
168 macaddr[5] = offset & 0xFF;
171 for(i = 0; i < 6; i++) {
172 macaddr[i] = strtol(p, (char **)&p, 16);
177 if (*p != ':' && *p != '-')
188 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
199 if (len > buf_size - 1)
208 int parse_host_src_port(struct sockaddr_in *haddr,
209 struct sockaddr_in *saddr,
210 const char *input_str)
212 char *str = strdup(input_str);
213 char *host_str = str;
215 const char *src_str2;
219 * Chop off any extra arguments at the end of the string which
220 * would start with a comma, then fill in the src port information
221 * if it was provided else use the "any address" and "any port".
223 if ((ptr = strchr(str,',')))
226 if ((src_str = strchr(input_str,'@'))) {
231 if (parse_host_port(haddr, host_str) < 0)
235 if (!src_str || *src_str == '\0')
238 if (parse_host_port(saddr, src_str2) < 0)
249 int parse_host_port(struct sockaddr_in *saddr, const char *str)
257 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
259 saddr->sin_family = AF_INET;
260 if (buf[0] == '\0') {
261 saddr->sin_addr.s_addr = 0;
263 if (qemu_isdigit(buf[0])) {
264 if (!inet_aton(buf, &saddr->sin_addr))
267 if ((he = gethostbyname(buf)) == NULL)
269 saddr->sin_addr = *(struct in_addr *)he->h_addr;
272 port = strtol(p, (char **)&r, 0);
275 saddr->sin_port = htons(port);
279 #if !defined(_WIN32) && 0
280 static int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
285 len = MIN(108, strlen(str));
286 p = strchr(str, ',');
288 len = MIN(len, p - str);
290 memset(uaddr, 0, sizeof(*uaddr));
292 uaddr->sun_family = AF_UNIX;
293 memcpy(uaddr->sun_path, str, len);
299 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6])
301 snprintf(vc->info_str, sizeof(vc->info_str),
302 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
304 macaddr[0], macaddr[1], macaddr[2],
305 macaddr[3], macaddr[4], macaddr[5]);
308 static char *assign_name(VLANClientState *vc1, const char *model)
314 for (vlan = first_vlan; vlan; vlan = vlan->next) {
317 for (vc = vlan->first_client; vc; vc = vc->next)
318 if (vc != vc1 && strcmp(vc->model, model) == 0)
322 snprintf(buf, sizeof(buf), "%s.%d", model, id);
327 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
330 IOReadHandler *fd_read,
331 IOCanRWHandler *fd_can_read,
334 VLANClientState *vc, **pvc;
335 vc = qemu_mallocz(sizeof(VLANClientState));
338 vc->model = strdup(model);
340 vc->name = strdup(name);
342 vc->name = assign_name(vc, model);
343 vc->fd_read = fd_read;
344 vc->fd_can_read = fd_can_read;
349 pvc = &vlan->first_client;
356 void qemu_del_vlan_client(VLANClientState *vc)
358 VLANClientState **pvc = &vc->vlan->first_client;
371 int qemu_can_send_packet(VLANClientState *vc1)
373 VLANState *vlan = vc1->vlan;
376 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
378 if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
385 void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size)
387 VLANState *vlan = vc1->vlan;
394 printf("vlan %d send:\n", vlan->id);
395 hex_dump(stdout, buf, size);
397 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
398 if (vc != vc1 && !vc->link_down) {
399 vc->fd_read(vc->opaque, buf, size);
404 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
407 uint8_t buffer[4096];
411 for (i = 0; i < iovcnt; i++) {
414 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
415 memcpy(buffer + offset, iov[i].iov_base, len);
419 vc->fd_read(vc->opaque, buffer, offset);
424 ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov,
427 VLANState *vlan = vc1->vlan;
431 for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
438 len = vc->fd_readv(vc->opaque, iov, iovcnt);
439 else if (vc->fd_read)
440 len = vc_sendv_compat(vc, iov, iovcnt);
442 max_len = MAX(max_len, len);
448 #if defined(CONFIG_SLIRP)
450 /* slirp network adapter */
452 static int slirp_inited;
453 static int slirp_restrict;
454 static char *slirp_ip;
455 static VLANClientState *slirp_vc;
457 int slirp_can_output(void)
459 return !slirp_vc || qemu_can_send_packet(slirp_vc);
462 void slirp_output(const uint8_t *pkt, int pkt_len)
465 printf("slirp output:\n");
466 hex_dump(stdout, pkt, pkt_len);
470 qemu_send_packet(slirp_vc, pkt, pkt_len);
473 int slirp_is_inited(void)
478 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
481 printf("slirp input:\n");
482 hex_dump(stdout, buf, size);
484 slirp_input(buf, size);
487 static int net_slirp_init(VLANState *vlan, const char *model, const char *name)
491 slirp_init(slirp_restrict, slirp_ip);
493 slirp_vc = qemu_new_vlan_client(vlan, model, name,
494 slirp_receive, NULL, NULL);
495 slirp_vc->info_str[0] = '\0';
499 void net_slirp_redir(const char *redir_str)
504 struct in_addr guest_addr;
505 int host_port, guest_port;
509 slirp_init(slirp_restrict, slirp_ip);
513 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
515 if (!strcmp(buf, "tcp")) {
517 } else if (!strcmp(buf, "udp")) {
523 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
525 host_port = strtol(buf, &r, 0);
529 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
531 if (buf[0] == '\0') {
532 pstrcpy(buf, sizeof(buf), "10.0.2.15");
534 if (!inet_aton(buf, &guest_addr))
537 guest_port = strtol(p, &r, 0);
541 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
542 fprintf(stderr, "qemu: could not set up redirection\n");
547 fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
553 static char smb_dir[1024];
555 static void erase_dir(char *dir_name)
561 /* erase all the files in the directory */
562 if ((d = opendir(dir_name)) != 0) {
567 if (strcmp(de->d_name, ".") != 0 &&
568 strcmp(de->d_name, "..") != 0) {
569 snprintf(filename, sizeof(filename), "%s/%s",
570 smb_dir, de->d_name);
571 if (unlink(filename) != 0) /* is it a directory? */
580 /* automatic user mode samba server configuration */
581 static void smb_exit(void)
586 /* automatic user mode samba server configuration */
587 void net_slirp_smb(const char *exported_dir)
590 char smb_cmdline[1024];
595 slirp_init(slirp_restrict, slirp_ip);
598 /* XXX: better tmp dir construction */
599 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid());
600 if (mkdir(smb_dir, 0700) < 0) {
601 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
604 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
606 f = fopen(smb_conf, "w");
608 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
615 "socket address=127.0.0.1\n"
617 "lock directory=%s\n"
618 "log file=%s/log.smbd\n"
619 "smb passwd file=%s/smbpasswd\n"
635 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
636 SMBD_COMMAND, smb_conf);
638 slirp_add_exec(0, smb_cmdline, 4, 139);
641 #endif /* !defined(_WIN32) */
642 void do_info_slirp(void)
647 #endif /* CONFIG_SLIRP */
651 typedef struct TAPState {
654 char down_script[1024];
655 char down_script_arg[128];
659 static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov,
662 TAPState *s = opaque;
666 len = writev(s->fd, iov, iovcnt);
667 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
673 static void tap_receive(void *opaque, const uint8_t *buf, int size)
675 TAPState *s = opaque;
678 ret = write(s->fd, buf, size);
679 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
686 static void tap_send(void *opaque)
688 TAPState *s = opaque;
695 sbuf.maxlen = sizeof(buf);
697 size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
699 size = read(s->fd, buf, sizeof(buf));
702 qemu_send_packet(s->vc, buf, size);
708 static TAPState *net_tap_fd_init(VLANState *vlan,
715 s = qemu_mallocz(sizeof(TAPState));
719 s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive, NULL, s);
721 s->vc->fd_readv = tap_receive_iov;
723 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
724 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
728 #if defined (_BSD) || defined (__FreeBSD_kernel__)
729 static int tap_open(char *ifname, int ifname_size)
735 TFR(fd = open("/dev/tap", O_RDWR));
737 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
742 dev = devname(s.st_rdev, S_IFCHR);
743 pstrcpy(ifname, ifname_size, dev);
745 fcntl(fd, F_SETFL, O_NONBLOCK);
748 #elif defined(__sun__)
749 #define TUNNEWPPA (('T'<<16) | 0x0001)
751 * Allocate TAP device, returns opened fd.
752 * Stores dev name in the first arg(must be large enough).
754 int tap_alloc(char *dev, size_t dev_size)
756 int tap_fd, if_fd, ppa = -1;
757 static int ip_fd = 0;
760 static int arp_fd = 0;
761 int ip_muxid, arp_muxid;
762 struct strioctl strioc_if, strioc_ppa;
763 int link_type = I_PLINK;;
765 char actual_name[32] = "";
767 memset(&ifr, 0x0, sizeof(ifr));
771 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
775 /* Check if IP device was opened */
779 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
781 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
785 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
787 syslog(LOG_ERR, "Can't open /dev/tap");
791 /* Assign a new PPA and get its unit number. */
792 strioc_ppa.ic_cmd = TUNNEWPPA;
793 strioc_ppa.ic_timout = 0;
794 strioc_ppa.ic_len = sizeof(ppa);
795 strioc_ppa.ic_dp = (char *)&ppa;
796 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
797 syslog (LOG_ERR, "Can't assign new interface");
799 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
801 syslog(LOG_ERR, "Can't open /dev/tap (2)");
804 if(ioctl(if_fd, I_PUSH, "ip") < 0){
805 syslog(LOG_ERR, "Can't push IP module");
809 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
810 syslog(LOG_ERR, "Can't get flags\n");
812 snprintf (actual_name, 32, "tap%d", ppa);
813 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
816 /* Assign ppa according to the unit number returned by tun device */
818 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
819 syslog (LOG_ERR, "Can't set PPA %d", ppa);
820 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
821 syslog (LOG_ERR, "Can't get flags\n");
822 /* Push arp module to if_fd */
823 if (ioctl (if_fd, I_PUSH, "arp") < 0)
824 syslog (LOG_ERR, "Can't push ARP module (2)");
826 /* Push arp module to ip_fd */
827 if (ioctl (ip_fd, I_POP, NULL) < 0)
828 syslog (LOG_ERR, "I_POP failed\n");
829 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
830 syslog (LOG_ERR, "Can't push ARP module (3)\n");
832 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
834 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
836 /* Set ifname to arp */
837 strioc_if.ic_cmd = SIOCSLIFNAME;
838 strioc_if.ic_timout = 0;
839 strioc_if.ic_len = sizeof(ifr);
840 strioc_if.ic_dp = (char *)𝔦
841 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
842 syslog (LOG_ERR, "Can't set ifname to arp\n");
845 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
846 syslog(LOG_ERR, "Can't link TAP device to IP");
850 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
851 syslog (LOG_ERR, "Can't link TAP device to ARP");
855 memset(&ifr, 0x0, sizeof(ifr));
856 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
857 ifr.lifr_ip_muxid = ip_muxid;
858 ifr.lifr_arp_muxid = arp_muxid;
860 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
862 ioctl (ip_fd, I_PUNLINK , arp_muxid);
863 ioctl (ip_fd, I_PUNLINK, ip_muxid);
864 syslog (LOG_ERR, "Can't set multiplexor id");
867 snprintf(dev, dev_size, "tap%d", ppa);
871 static int tap_open(char *ifname, int ifname_size)
875 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
876 fprintf(stderr, "Cannot allocate TAP device\n");
879 pstrcpy(ifname, ifname_size, dev);
880 fcntl(fd, F_SETFL, O_NONBLOCK);
884 static int tap_open(char *ifname, int ifname_size)
886 fprintf (stderr, "no tap on AIX\n");
890 static int tap_open(char *ifname, int ifname_size)
895 TFR(fd = open("/dev/net/tun", O_RDWR));
897 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
900 memset(&ifr, 0, sizeof(ifr));
901 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
902 if (ifname[0] != '\0')
903 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
905 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
906 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
908 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
912 pstrcpy(ifname, ifname_size, ifr.ifr_name);
913 fcntl(fd, F_SETFL, O_NONBLOCK);
918 static int launch_script(const char *setup_script, const char *ifname, int fd)
924 /* try to launch network script */
928 int open_max = sysconf (_SC_OPEN_MAX), i;
929 for (i = 0; i < open_max; i++)
930 if (i != STDIN_FILENO &&
931 i != STDOUT_FILENO &&
932 i != STDERR_FILENO &&
937 *parg++ = (char *)setup_script;
938 *parg++ = (char *)ifname;
940 execv(setup_script, args);
943 while (waitpid(pid, &status, 0) != pid);
944 if (!WIFEXITED(status) ||
945 WEXITSTATUS(status) != 0) {
946 fprintf(stderr, "%s: could not launch network script\n",
954 static int net_tap_init(VLANState *vlan, const char *model,
955 const char *name, const char *ifname1,
956 const char *setup_script, const char *down_script)
963 pstrcpy(ifname, sizeof(ifname), ifname1);
966 TFR(fd = tap_open(ifname, sizeof(ifname)));
970 if (!setup_script || !strcmp(setup_script, "no"))
972 if (setup_script[0] != '\0') {
973 if (launch_script(setup_script, ifname, fd))
976 s = net_tap_fd_init(vlan, model, name, fd);
979 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
980 "ifname=%s,script=%s,downscript=%s",
981 ifname, setup_script, down_script);
982 if (down_script && strcmp(down_script, "no")) {
983 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
984 snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
991 #if defined(CONFIG_VDE)
992 typedef struct VDEState {
997 static void vde_to_qemu(void *opaque)
999 VDEState *s = opaque;
1003 size = vde_recv(s->vde, buf, sizeof(buf), 0);
1005 qemu_send_packet(s->vc, buf, size);
1009 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
1011 VDEState *s = opaque;
1014 ret = vde_send(s->vde, buf, size, 0);
1015 if (ret < 0 && errno == EINTR) {
1022 static int net_vde_init(VLANState *vlan, const char *model,
1023 const char *name, const char *sock,
1024 int port, const char *group, int mode)
1027 char *init_group = strlen(group) ? (char *)group : NULL;
1028 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1030 struct vde_open_args args = {
1032 .group = init_group,
1036 s = qemu_mallocz(sizeof(VDEState));
1039 s->vde = vde_open(init_sock, "QEMU", &args);
1044 s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu, NULL, s);
1045 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1046 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1047 sock, vde_datafd(s->vde));
1052 /* network connection */
1053 typedef struct NetSocketState {
1054 VLANClientState *vc;
1056 int state; /* 0 = getting length, 1 = getting data */
1060 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1063 typedef struct NetSocketListenState {
1068 } NetSocketListenState;
1070 /* XXX: we consider we can send the whole packet without blocking */
1071 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
1073 NetSocketState *s = opaque;
1077 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1078 send_all(s->fd, buf, size);
1081 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
1083 NetSocketState *s = opaque;
1084 sendto(s->fd, buf, size, 0,
1085 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1088 static void net_socket_send(void *opaque)
1090 NetSocketState *s = opaque;
1095 size = recv(s->fd, buf1, sizeof(buf1), 0);
1097 err = socket_error();
1098 if (err != EWOULDBLOCK)
1100 } else if (size == 0) {
1101 /* end of connection */
1103 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1109 /* reassemble a packet from the network */
1115 memcpy(s->buf + s->index, buf, l);
1119 if (s->index == 4) {
1121 s->packet_len = ntohl(*(uint32_t *)s->buf);
1127 l = s->packet_len - s->index;
1130 memcpy(s->buf + s->index, buf, l);
1134 if (s->index >= s->packet_len) {
1135 qemu_send_packet(s->vc, s->buf, s->packet_len);
1144 static void net_socket_send_dgram(void *opaque)
1146 NetSocketState *s = opaque;
1149 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1153 /* end of connection */
1154 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1157 qemu_send_packet(s->vc, s->buf, size);
1160 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1165 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1166 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1167 inet_ntoa(mcastaddr->sin_addr),
1168 (int)ntohl(mcastaddr->sin_addr.s_addr));
1172 fd = socket(PF_INET, SOCK_DGRAM, 0);
1174 perror("socket(PF_INET, SOCK_DGRAM)");
1179 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1180 (const char *)&val, sizeof(val));
1182 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1186 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1192 /* Add host to multicast group */
1193 imr.imr_multiaddr = mcastaddr->sin_addr;
1194 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1196 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1197 (const char *)&imr, sizeof(struct ip_mreq));
1199 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1203 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1205 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1206 (const char *)&val, sizeof(val));
1208 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1212 socket_set_nonblock(fd);
1220 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1223 int fd, int is_connected)
1225 struct sockaddr_in saddr;
1227 socklen_t saddr_len;
1230 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1231 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1232 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1236 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1238 if (saddr.sin_addr.s_addr==0) {
1239 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1243 /* clone dgram socket */
1244 newfd = net_socket_mcast_create(&saddr);
1246 /* error already reported by net_socket_mcast_create() */
1250 /* clone newfd to fd, close newfd */
1255 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1256 fd, strerror(errno));
1261 s = qemu_mallocz(sizeof(NetSocketState));
1266 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram, NULL, s);
1267 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1269 /* mcast: save bound address as dst */
1270 if (is_connected) s->dgram_dst=saddr;
1272 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1273 "socket: fd=%d (%s mcast=%s:%d)",
1274 fd, is_connected? "cloned" : "",
1275 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1279 static void net_socket_connect(void *opaque)
1281 NetSocketState *s = opaque;
1282 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1285 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1288 int fd, int is_connected)
1291 s = qemu_mallocz(sizeof(NetSocketState));
1295 s->vc = qemu_new_vlan_client(vlan, model, name,
1296 net_socket_receive, NULL, s);
1297 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1298 "socket: fd=%d", fd);
1300 net_socket_connect(s);
1302 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1307 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1308 const char *model, const char *name,
1309 int fd, int is_connected)
1311 int so_type=-1, optlen=sizeof(so_type);
1313 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1314 (socklen_t *)&optlen)< 0) {
1315 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1320 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1322 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1324 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1325 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1326 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1331 static void net_socket_accept(void *opaque)
1333 NetSocketListenState *s = opaque;
1335 struct sockaddr_in saddr;
1340 len = sizeof(saddr);
1341 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1342 if (fd < 0 && errno != EINTR) {
1344 } else if (fd >= 0) {
1348 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1352 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1353 "socket: connection from %s:%d",
1354 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1358 static int net_socket_listen_init(VLANState *vlan,
1361 const char *host_str)
1363 NetSocketListenState *s;
1365 struct sockaddr_in saddr;
1367 if (parse_host_port(&saddr, host_str) < 0)
1370 s = qemu_mallocz(sizeof(NetSocketListenState));
1374 fd = socket(PF_INET, SOCK_STREAM, 0);
1379 socket_set_nonblock(fd);
1381 /* allow fast reuse */
1383 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1385 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1390 ret = listen(fd, 0);
1396 s->model = strdup(model);
1397 s->name = strdup(name);
1399 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1403 static int net_socket_connect_init(VLANState *vlan,
1406 const char *host_str)
1409 int fd, connected, ret, err;
1410 struct sockaddr_in saddr;
1412 if (parse_host_port(&saddr, host_str) < 0)
1415 fd = socket(PF_INET, SOCK_STREAM, 0);
1420 socket_set_nonblock(fd);
1424 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1426 err = socket_error();
1427 if (err == EINTR || err == EWOULDBLOCK) {
1428 } else if (err == EINPROGRESS) {
1431 } else if (err == WSAEALREADY) {
1444 s = net_socket_fd_init(vlan, model, name, fd, connected);
1447 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1448 "socket: connect to %s:%d",
1449 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1453 static int net_socket_mcast_init(VLANState *vlan,
1456 const char *host_str)
1460 struct sockaddr_in saddr;
1462 if (parse_host_port(&saddr, host_str) < 0)
1466 fd = net_socket_mcast_create(&saddr);
1470 s = net_socket_fd_init(vlan, model, name, fd, 0);
1474 s->dgram_dst = saddr;
1476 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1477 "socket: mcast=%s:%d",
1478 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1483 /* find or alloc a new VLAN */
1484 VLANState *qemu_find_vlan(int id)
1486 VLANState **pvlan, *vlan;
1487 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1491 vlan = qemu_mallocz(sizeof(VLANState));
1496 pvlan = &first_vlan;
1497 while (*pvlan != NULL)
1498 pvlan = &(*pvlan)->next;
1503 void qemu_check_nic_model(NICInfo *nd, const char *model)
1505 const char *models[2];
1510 qemu_check_nic_model_list(nd, models, model);
1513 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
1514 const char *default_model)
1516 int i, exit_status = 0;
1519 nd->model = strdup(default_model);
1521 if (strcmp(nd->model, "?") != 0) {
1522 for (i = 0 ; models[i]; i++)
1523 if (strcmp(nd->model, models[i]) == 0)
1526 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
1530 fprintf(stderr, "qemu: Supported NIC models: ");
1531 for (i = 0 ; models[i]; i++)
1532 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
1537 int net_client_init(const char *device, const char *p)
1545 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1546 vlan_id = strtol(buf, NULL, 0);
1548 vlan = qemu_find_vlan(vlan_id);
1550 fprintf(stderr, "Could not create vlan %d\n", vlan_id);
1553 if (get_param_value(buf, sizeof(buf), "name", p)) {
1556 if (!strcmp(device, "nic")) {
1560 if (nb_nics >= MAX_NICS) {
1561 fprintf(stderr, "Too Many NICs\n");
1564 nd = &nd_table[nb_nics];
1565 macaddr = nd->macaddr;
1571 macaddr[5] = 0x56 + nb_nics;
1573 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
1574 if (parse_macaddr(macaddr, buf) < 0) {
1575 fprintf(stderr, "invalid syntax for ethernet address\n");
1579 if (get_param_value(buf, sizeof(buf), "model", p)) {
1580 nd->model = strdup(buf);
1586 vlan->nb_guest_devs++;
1589 if (!strcmp(device, "none")) {
1590 /* does nothing. It is needed to signal that no network cards
1595 if (!strcmp(device, "user")) {
1596 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
1597 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
1599 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
1600 slirp_restrict = (buf[0] == 'y') ? 1 : 0;
1602 if (get_param_value(buf, sizeof(buf), "ip", p)) {
1603 slirp_ip = strdup(buf);
1605 vlan->nb_host_devs++;
1606 ret = net_slirp_init(vlan, device, name);
1610 if (!strcmp(device, "tap")) {
1612 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1613 fprintf(stderr, "tap: no interface name\n");
1616 vlan->nb_host_devs++;
1617 ret = tap_win32_init(vlan, device, name, ifname);
1619 #elif defined (_AIX)
1621 if (!strcmp(device, "tap")) {
1623 char setup_script[1024], down_script[1024];
1625 vlan->nb_host_devs++;
1626 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1627 fd = strtol(buf, NULL, 0);
1628 fcntl(fd, F_SETFL, O_NONBLOCK);
1630 if (net_tap_fd_init(vlan, device, name, fd))
1633 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1636 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
1637 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
1639 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
1640 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
1642 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
1646 if (!strcmp(device, "socket")) {
1647 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1649 fd = strtol(buf, NULL, 0);
1651 if (net_socket_fd_init(vlan, device, name, fd, 1))
1653 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
1654 ret = net_socket_listen_init(vlan, device, name, buf);
1655 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
1656 ret = net_socket_connect_init(vlan, device, name, buf);
1657 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
1658 ret = net_socket_mcast_init(vlan, device, name, buf);
1660 fprintf(stderr, "Unknown socket options: %s\n", p);
1663 vlan->nb_host_devs++;
1666 if (!strcmp(device, "vde")) {
1667 char vde_sock[1024], vde_group[512];
1668 int vde_port, vde_mode;
1669 vlan->nb_host_devs++;
1670 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
1673 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
1674 vde_port = strtol(buf, NULL, 10);
1678 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
1679 vde_group[0] = '\0';
1681 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
1682 vde_mode = strtol(buf, NULL, 8);
1686 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
1690 fprintf(stderr, "Unknown network device: %s\n", device);
1696 fprintf(stderr, "Could not initialize device '%s'\n", device);
1703 int net_client_parse(const char *str)
1711 while (*p != '\0' && *p != ',') {
1712 if ((q - device) < sizeof(device) - 1)
1720 return net_client_init(device, p);
1723 void do_info_network(void)
1726 VLANClientState *vc;
1728 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1729 term_printf("VLAN %d devices:\n", vlan->id);
1730 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
1731 term_printf(" %s: %s\n", vc->name, vc->info_str);
1735 int do_set_link(const char *name, const char *up_or_down)
1738 VLANClientState *vc = NULL;
1740 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
1741 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
1742 if (strcmp(vc->name, name) == 0)
1747 term_printf("could not find network device '%s'", name);
1751 if (strcmp(up_or_down, "up") == 0)
1753 else if (strcmp(up_or_down, "down") == 0)
1756 term_printf("invalid link status '%s'; only 'up' or 'down' valid\n",
1759 if (vc->link_status_changed)
1760 vc->link_status_changed(vc);
1765 void net_cleanup(void)
1769 #if !defined(_WIN32)
1770 /* close network clients */
1771 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1772 VLANClientState *vc;
1774 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
1775 if (vc->fd_read == tap_receive) {
1776 TAPState *s = vc->opaque;
1778 if (s->down_script[0])
1779 launch_script(s->down_script, s->down_script_arg, s->fd);
1781 #if defined(CONFIG_VDE)
1782 if (vc->fd_read == vde_from_qemu) {
1783 VDEState *s = vc->opaque;
1792 void net_client_check(void)
1796 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1797 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
1799 if (vlan->nb_guest_devs == 0)
1800 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
1801 if (vlan->nb_host_devs == 0)
1803 "Warning: vlan %d is not connected to host network\n",