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];
658 static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov,
661 TAPState *s = opaque;
665 len = writev(s->fd, iov, iovcnt);
666 } while (len == -1 && (errno == EINTR || errno == EAGAIN));
672 static void tap_receive(void *opaque, const uint8_t *buf, int size)
674 TAPState *s = opaque;
677 ret = write(s->fd, buf, size);
678 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
685 static void tap_send(void *opaque)
687 TAPState *s = opaque;
694 sbuf.maxlen = sizeof(buf);
696 size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
698 size = read(s->fd, buf, sizeof(buf));
701 qemu_send_packet(s->vc, buf, size);
707 static TAPState *net_tap_fd_init(VLANState *vlan,
714 s = qemu_mallocz(sizeof(TAPState));
718 s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive, NULL, s);
720 s->vc->fd_readv = tap_receive_iov;
722 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
723 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
727 #if defined (_BSD) || defined (__FreeBSD_kernel__)
728 static int tap_open(char *ifname, int ifname_size)
734 TFR(fd = open("/dev/tap", O_RDWR));
736 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
741 dev = devname(s.st_rdev, S_IFCHR);
742 pstrcpy(ifname, ifname_size, dev);
744 fcntl(fd, F_SETFL, O_NONBLOCK);
747 #elif defined(__sun__)
748 #define TUNNEWPPA (('T'<<16) | 0x0001)
750 * Allocate TAP device, returns opened fd.
751 * Stores dev name in the first arg(must be large enough).
753 int tap_alloc(char *dev, size_t dev_size)
755 int tap_fd, if_fd, ppa = -1;
756 static int ip_fd = 0;
759 static int arp_fd = 0;
760 int ip_muxid, arp_muxid;
761 struct strioctl strioc_if, strioc_ppa;
762 int link_type = I_PLINK;;
764 char actual_name[32] = "";
766 memset(&ifr, 0x0, sizeof(ifr));
770 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
774 /* Check if IP device was opened */
778 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
780 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
784 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
786 syslog(LOG_ERR, "Can't open /dev/tap");
790 /* Assign a new PPA and get its unit number. */
791 strioc_ppa.ic_cmd = TUNNEWPPA;
792 strioc_ppa.ic_timout = 0;
793 strioc_ppa.ic_len = sizeof(ppa);
794 strioc_ppa.ic_dp = (char *)&ppa;
795 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
796 syslog (LOG_ERR, "Can't assign new interface");
798 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
800 syslog(LOG_ERR, "Can't open /dev/tap (2)");
803 if(ioctl(if_fd, I_PUSH, "ip") < 0){
804 syslog(LOG_ERR, "Can't push IP module");
808 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
809 syslog(LOG_ERR, "Can't get flags\n");
811 snprintf (actual_name, 32, "tap%d", ppa);
812 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
815 /* Assign ppa according to the unit number returned by tun device */
817 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
818 syslog (LOG_ERR, "Can't set PPA %d", ppa);
819 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
820 syslog (LOG_ERR, "Can't get flags\n");
821 /* Push arp module to if_fd */
822 if (ioctl (if_fd, I_PUSH, "arp") < 0)
823 syslog (LOG_ERR, "Can't push ARP module (2)");
825 /* Push arp module to ip_fd */
826 if (ioctl (ip_fd, I_POP, NULL) < 0)
827 syslog (LOG_ERR, "I_POP failed\n");
828 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
829 syslog (LOG_ERR, "Can't push ARP module (3)\n");
831 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
833 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
835 /* Set ifname to arp */
836 strioc_if.ic_cmd = SIOCSLIFNAME;
837 strioc_if.ic_timout = 0;
838 strioc_if.ic_len = sizeof(ifr);
839 strioc_if.ic_dp = (char *)𝔦
840 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
841 syslog (LOG_ERR, "Can't set ifname to arp\n");
844 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
845 syslog(LOG_ERR, "Can't link TAP device to IP");
849 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
850 syslog (LOG_ERR, "Can't link TAP device to ARP");
854 memset(&ifr, 0x0, sizeof(ifr));
855 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
856 ifr.lifr_ip_muxid = ip_muxid;
857 ifr.lifr_arp_muxid = arp_muxid;
859 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
861 ioctl (ip_fd, I_PUNLINK , arp_muxid);
862 ioctl (ip_fd, I_PUNLINK, ip_muxid);
863 syslog (LOG_ERR, "Can't set multiplexor id");
866 snprintf(dev, dev_size, "tap%d", ppa);
870 static int tap_open(char *ifname, int ifname_size)
874 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
875 fprintf(stderr, "Cannot allocate TAP device\n");
878 pstrcpy(ifname, ifname_size, dev);
879 fcntl(fd, F_SETFL, O_NONBLOCK);
883 static int tap_open(char *ifname, int ifname_size)
885 fprintf (stderr, "no tap on AIX\n");
889 static int tap_open(char *ifname, int ifname_size)
894 TFR(fd = open("/dev/net/tun", O_RDWR));
896 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
899 memset(&ifr, 0, sizeof(ifr));
900 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
901 if (ifname[0] != '\0')
902 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
904 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
905 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
907 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
911 pstrcpy(ifname, ifname_size, ifr.ifr_name);
912 fcntl(fd, F_SETFL, O_NONBLOCK);
917 static int launch_script(const char *setup_script, const char *ifname, int fd)
923 /* try to launch network script */
927 int open_max = sysconf (_SC_OPEN_MAX), i;
928 for (i = 0; i < open_max; i++)
929 if (i != STDIN_FILENO &&
930 i != STDOUT_FILENO &&
931 i != STDERR_FILENO &&
936 *parg++ = (char *)setup_script;
937 *parg++ = (char *)ifname;
939 execv(setup_script, args);
942 while (waitpid(pid, &status, 0) != pid);
943 if (!WIFEXITED(status) ||
944 WEXITSTATUS(status) != 0) {
945 fprintf(stderr, "%s: could not launch network script\n",
953 static int net_tap_init(VLANState *vlan, const char *model,
954 const char *name, const char *ifname1,
955 const char *setup_script, const char *down_script)
962 pstrcpy(ifname, sizeof(ifname), ifname1);
965 TFR(fd = tap_open(ifname, sizeof(ifname)));
969 if (!setup_script || !strcmp(setup_script, "no"))
971 if (setup_script[0] != '\0') {
972 if (launch_script(setup_script, ifname, fd))
975 s = net_tap_fd_init(vlan, model, name, fd);
978 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
979 "ifname=%s,script=%s,downscript=%s",
980 ifname, setup_script, down_script);
981 if (down_script && strcmp(down_script, "no"))
982 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
988 #if defined(CONFIG_VDE)
989 typedef struct VDEState {
994 static void vde_to_qemu(void *opaque)
996 VDEState *s = opaque;
1000 size = vde_recv(s->vde, buf, sizeof(buf), 0);
1002 qemu_send_packet(s->vc, buf, size);
1006 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
1008 VDEState *s = opaque;
1011 ret = vde_send(s->vde, buf, size, 0);
1012 if (ret < 0 && errno == EINTR) {
1019 static int net_vde_init(VLANState *vlan, const char *model,
1020 const char *name, const char *sock,
1021 int port, const char *group, int mode)
1024 char *init_group = strlen(group) ? (char *)group : NULL;
1025 char *init_sock = strlen(sock) ? (char *)sock : NULL;
1027 struct vde_open_args args = {
1029 .group = init_group,
1033 s = qemu_mallocz(sizeof(VDEState));
1036 s->vde = vde_open(init_sock, "QEMU", &args);
1041 s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu, NULL, s);
1042 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
1043 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
1044 sock, vde_datafd(s->vde));
1049 /* network connection */
1050 typedef struct NetSocketState {
1051 VLANClientState *vc;
1053 int state; /* 0 = getting length, 1 = getting data */
1057 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1060 typedef struct NetSocketListenState {
1065 } NetSocketListenState;
1067 /* XXX: we consider we can send the whole packet without blocking */
1068 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
1070 NetSocketState *s = opaque;
1074 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
1075 send_all(s->fd, buf, size);
1078 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
1080 NetSocketState *s = opaque;
1081 sendto(s->fd, buf, size, 0,
1082 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
1085 static void net_socket_send(void *opaque)
1087 NetSocketState *s = opaque;
1092 size = recv(s->fd, buf1, sizeof(buf1), 0);
1094 err = socket_error();
1095 if (err != EWOULDBLOCK)
1097 } else if (size == 0) {
1098 /* end of connection */
1100 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1106 /* reassemble a packet from the network */
1112 memcpy(s->buf + s->index, buf, l);
1116 if (s->index == 4) {
1118 s->packet_len = ntohl(*(uint32_t *)s->buf);
1124 l = s->packet_len - s->index;
1127 memcpy(s->buf + s->index, buf, l);
1131 if (s->index >= s->packet_len) {
1132 qemu_send_packet(s->vc, s->buf, s->packet_len);
1141 static void net_socket_send_dgram(void *opaque)
1143 NetSocketState *s = opaque;
1146 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
1150 /* end of connection */
1151 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1154 qemu_send_packet(s->vc, s->buf, size);
1157 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
1162 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
1163 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1164 inet_ntoa(mcastaddr->sin_addr),
1165 (int)ntohl(mcastaddr->sin_addr.s_addr));
1169 fd = socket(PF_INET, SOCK_DGRAM, 0);
1171 perror("socket(PF_INET, SOCK_DGRAM)");
1176 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1177 (const char *)&val, sizeof(val));
1179 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1183 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
1189 /* Add host to multicast group */
1190 imr.imr_multiaddr = mcastaddr->sin_addr;
1191 imr.imr_interface.s_addr = htonl(INADDR_ANY);
1193 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
1194 (const char *)&imr, sizeof(struct ip_mreq));
1196 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1200 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1202 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
1203 (const char *)&val, sizeof(val));
1205 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1209 socket_set_nonblock(fd);
1217 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
1220 int fd, int is_connected)
1222 struct sockaddr_in saddr;
1224 socklen_t saddr_len;
1227 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1228 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1229 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1233 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
1235 if (saddr.sin_addr.s_addr==0) {
1236 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1240 /* clone dgram socket */
1241 newfd = net_socket_mcast_create(&saddr);
1243 /* error already reported by net_socket_mcast_create() */
1247 /* clone newfd to fd, close newfd */
1252 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1253 fd, strerror(errno));
1258 s = qemu_mallocz(sizeof(NetSocketState));
1263 s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram, NULL, s);
1264 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
1266 /* mcast: save bound address as dst */
1267 if (is_connected) s->dgram_dst=saddr;
1269 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1270 "socket: fd=%d (%s mcast=%s:%d)",
1271 fd, is_connected? "cloned" : "",
1272 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1276 static void net_socket_connect(void *opaque)
1278 NetSocketState *s = opaque;
1279 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
1282 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
1285 int fd, int is_connected)
1288 s = qemu_mallocz(sizeof(NetSocketState));
1292 s->vc = qemu_new_vlan_client(vlan, model, name,
1293 net_socket_receive, NULL, s);
1294 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1295 "socket: fd=%d", fd);
1297 net_socket_connect(s);
1299 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
1304 static NetSocketState *net_socket_fd_init(VLANState *vlan,
1305 const char *model, const char *name,
1306 int fd, int is_connected)
1308 int so_type=-1, optlen=sizeof(so_type);
1310 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
1311 (socklen_t *)&optlen)< 0) {
1312 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
1317 return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
1319 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1321 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1322 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
1323 return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
1328 static void net_socket_accept(void *opaque)
1330 NetSocketListenState *s = opaque;
1332 struct sockaddr_in saddr;
1337 len = sizeof(saddr);
1338 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
1339 if (fd < 0 && errno != EINTR) {
1341 } else if (fd >= 0) {
1345 s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
1349 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
1350 "socket: connection from %s:%d",
1351 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1355 static int net_socket_listen_init(VLANState *vlan,
1358 const char *host_str)
1360 NetSocketListenState *s;
1362 struct sockaddr_in saddr;
1364 if (parse_host_port(&saddr, host_str) < 0)
1367 s = qemu_mallocz(sizeof(NetSocketListenState));
1371 fd = socket(PF_INET, SOCK_STREAM, 0);
1376 socket_set_nonblock(fd);
1378 /* allow fast reuse */
1380 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
1382 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1387 ret = listen(fd, 0);
1393 s->model = strdup(model);
1394 s->name = strdup(name);
1396 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
1400 static int net_socket_connect_init(VLANState *vlan,
1403 const char *host_str)
1406 int fd, connected, ret, err;
1407 struct sockaddr_in saddr;
1409 if (parse_host_port(&saddr, host_str) < 0)
1412 fd = socket(PF_INET, SOCK_STREAM, 0);
1417 socket_set_nonblock(fd);
1421 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
1423 err = socket_error();
1424 if (err == EINTR || err == EWOULDBLOCK) {
1425 } else if (err == EINPROGRESS) {
1428 } else if (err == WSAEALREADY) {
1441 s = net_socket_fd_init(vlan, model, name, fd, connected);
1444 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1445 "socket: connect to %s:%d",
1446 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1450 static int net_socket_mcast_init(VLANState *vlan,
1453 const char *host_str)
1457 struct sockaddr_in saddr;
1459 if (parse_host_port(&saddr, host_str) < 0)
1463 fd = net_socket_mcast_create(&saddr);
1467 s = net_socket_fd_init(vlan, model, name, fd, 0);
1471 s->dgram_dst = saddr;
1473 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
1474 "socket: mcast=%s:%d",
1475 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
1480 /* find or alloc a new VLAN */
1481 VLANState *qemu_find_vlan(int id)
1483 VLANState **pvlan, *vlan;
1484 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1488 vlan = qemu_mallocz(sizeof(VLANState));
1493 pvlan = &first_vlan;
1494 while (*pvlan != NULL)
1495 pvlan = &(*pvlan)->next;
1500 void qemu_check_nic_model(NICInfo *nd, const char *model)
1502 const char *models[2];
1507 qemu_check_nic_model_list(nd, models, model);
1510 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
1511 const char *default_model)
1513 int i, exit_status = 0;
1516 nd->model = strdup(default_model);
1518 if (strcmp(nd->model, "?") != 0) {
1519 for (i = 0 ; models[i]; i++)
1520 if (strcmp(nd->model, models[i]) == 0)
1523 fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
1527 fprintf(stderr, "qemu: Supported NIC models: ");
1528 for (i = 0 ; models[i]; i++)
1529 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
1534 int net_client_init(const char *device, const char *p)
1542 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
1543 vlan_id = strtol(buf, NULL, 0);
1545 vlan = qemu_find_vlan(vlan_id);
1547 fprintf(stderr, "Could not create vlan %d\n", vlan_id);
1550 if (get_param_value(buf, sizeof(buf), "name", p)) {
1553 if (!strcmp(device, "nic")) {
1557 if (nb_nics >= MAX_NICS) {
1558 fprintf(stderr, "Too Many NICs\n");
1561 nd = &nd_table[nb_nics];
1562 macaddr = nd->macaddr;
1568 macaddr[5] = 0x56 + nb_nics;
1570 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
1571 if (parse_macaddr(macaddr, buf) < 0) {
1572 fprintf(stderr, "invalid syntax for ethernet address\n");
1576 if (get_param_value(buf, sizeof(buf), "model", p)) {
1577 nd->model = strdup(buf);
1583 vlan->nb_guest_devs++;
1586 if (!strcmp(device, "none")) {
1587 /* does nothing. It is needed to signal that no network cards
1592 if (!strcmp(device, "user")) {
1593 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
1594 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
1596 if (get_param_value(buf, sizeof(buf), "restrict", p)) {
1597 slirp_restrict = (buf[0] == 'y') ? 1 : 0;
1599 if (get_param_value(buf, sizeof(buf), "ip", p)) {
1600 slirp_ip = strdup(buf);
1602 vlan->nb_host_devs++;
1603 ret = net_slirp_init(vlan, device, name);
1607 if (!strcmp(device, "tap")) {
1609 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1610 fprintf(stderr, "tap: no interface name\n");
1613 vlan->nb_host_devs++;
1614 ret = tap_win32_init(vlan, device, name, ifname);
1616 #elif defined (_AIX)
1618 if (!strcmp(device, "tap")) {
1620 char setup_script[1024], down_script[1024];
1622 vlan->nb_host_devs++;
1623 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1624 fd = strtol(buf, NULL, 0);
1625 fcntl(fd, F_SETFL, O_NONBLOCK);
1627 if (net_tap_fd_init(vlan, device, name, fd))
1630 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
1633 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
1634 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
1636 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
1637 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
1639 ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
1643 if (!strcmp(device, "socket")) {
1644 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
1646 fd = strtol(buf, NULL, 0);
1648 if (net_socket_fd_init(vlan, device, name, fd, 1))
1650 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
1651 ret = net_socket_listen_init(vlan, device, name, buf);
1652 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
1653 ret = net_socket_connect_init(vlan, device, name, buf);
1654 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
1655 ret = net_socket_mcast_init(vlan, device, name, buf);
1657 fprintf(stderr, "Unknown socket options: %s\n", p);
1660 vlan->nb_host_devs++;
1663 if (!strcmp(device, "vde")) {
1664 char vde_sock[1024], vde_group[512];
1665 int vde_port, vde_mode;
1666 vlan->nb_host_devs++;
1667 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
1670 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
1671 vde_port = strtol(buf, NULL, 10);
1675 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
1676 vde_group[0] = '\0';
1678 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
1679 vde_mode = strtol(buf, NULL, 8);
1683 ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
1687 fprintf(stderr, "Unknown network device: %s\n", device);
1693 fprintf(stderr, "Could not initialize device '%s'\n", device);
1700 int net_client_parse(const char *str)
1708 while (*p != '\0' && *p != ',') {
1709 if ((q - device) < sizeof(device) - 1)
1717 return net_client_init(device, p);
1720 void do_info_network(void)
1723 VLANClientState *vc;
1725 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1726 term_printf("VLAN %d devices:\n", vlan->id);
1727 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
1728 term_printf(" %s: %s\n", vc->name, vc->info_str);
1732 int do_set_link(const char *name, const char *up_or_down)
1735 VLANClientState *vc = NULL;
1737 for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
1738 for (vc = vlan->first_client; vc != NULL; vc = vc->next)
1739 if (strcmp(vc->name, name) == 0)
1744 term_printf("could not find network device '%s'", name);
1748 if (strcmp(up_or_down, "up") == 0)
1750 else if (strcmp(up_or_down, "down") == 0)
1753 term_printf("invalid link status '%s'; only 'up' or 'down' valid\n",
1756 if (vc->link_status_changed)
1757 vc->link_status_changed(vc);
1762 void net_cleanup(void)
1766 #if !defined(_WIN32)
1767 /* close network clients */
1768 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
1769 VLANClientState *vc;
1771 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
1772 if (vc->fd_read == tap_receive) {
1774 TAPState *s = vc->opaque;
1776 if (strcmp(vc->model, "tap") == 0 &&
1777 sscanf(vc->info_str, "ifname=%63s ", ifname) == 1 &&
1779 launch_script(s->down_script, ifname, 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",