4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
32 /* Needed early for HOST_BSD etc. */
33 #include "config-host.h"
36 #include <sys/times.h>
40 #include <sys/ioctl.h>
41 #include <sys/resource.h>
42 #include <sys/socket.h>
43 #include <netinet/in.h>
46 #include <net/if_tap.h>
49 #include <linux/if_tun.h>
51 #include <arpa/inet.h>
54 #include <sys/select.h>
57 #if defined(__FreeBSD__) || defined(__DragonFly__)
62 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
63 #include <freebsd/stdlib.h>
68 #include <linux/rtc.h>
70 /* For the benefit of older linux systems which don't supply it,
71 we use a local copy of hpet.h. */
72 /* #include <linux/hpet.h> */
75 #include <linux/ppdev.h>
76 #include <linux/parport.h>
80 #include <sys/ethernet.h>
81 #include <sys/sockio.h>
82 #include <netinet/arp.h>
83 #include <netinet/in.h>
84 #include <netinet/in_systm.h>
85 #include <netinet/ip.h>
86 #include <netinet/ip_icmp.h> // must come after ip.h
87 #include <netinet/udp.h>
88 #include <netinet/tcp.h>
96 #if defined(__OpenBSD__)
100 #if defined(CONFIG_VDE)
101 #include <libvdeplug.h>
107 #include <sys/timeb.h>
108 #include <mmsystem.h>
109 #define getopt_long_only getopt_long
110 #define memalign(align, size) malloc(size)
113 #include "qemu-common.h"
117 #include "qemu-timer.h"
118 #include "qemu-char.h"
119 #include "audio/audio.h"
120 #include "qemu_socket.h"
121 #include "qemu-log.h"
123 #if defined(CONFIG_SLIRP)
124 #include "libslirp.h"
128 static VLANState
*first_vlan
;
130 /***********************************************************/
131 /* network device redirectors */
133 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
134 static void hex_dump(FILE *f
, const uint8_t *buf
, int size
)
138 for(i
=0;i
<size
;i
+=16) {
142 fprintf(f
, "%08x ", i
);
145 fprintf(f
, " %02x", buf
[i
+j
]);
152 if (c
< ' ' || c
> '~')
161 static int parse_macaddr(uint8_t *macaddr
, const char *p
)
168 offset
= strtol(p
, &last_char
, 0);
169 if (0 == errno
&& '\0' == *last_char
&&
170 offset
>= 0 && offset
<= 0xFFFFFF) {
171 macaddr
[3] = (offset
& 0xFF0000) >> 16;
172 macaddr
[4] = (offset
& 0xFF00) >> 8;
173 macaddr
[5] = offset
& 0xFF;
176 for(i
= 0; i
< 6; i
++) {
177 macaddr
[i
] = strtol(p
, (char **)&p
, 16);
182 if (*p
!= ':' && *p
!= '-')
193 static int get_str_sep(char *buf
, int buf_size
, const char **pp
, int sep
)
204 if (len
> buf_size
- 1)
213 int parse_host_src_port(struct sockaddr_in
*haddr
,
214 struct sockaddr_in
*saddr
,
215 const char *input_str
)
217 char *str
= strdup(input_str
);
218 char *host_str
= str
;
220 const char *src_str2
;
224 * Chop off any extra arguments at the end of the string which
225 * would start with a comma, then fill in the src port information
226 * if it was provided else use the "any address" and "any port".
228 if ((ptr
= strchr(str
,',')))
231 if ((src_str
= strchr(input_str
,'@'))) {
236 if (parse_host_port(haddr
, host_str
) < 0)
240 if (!src_str
|| *src_str
== '\0')
243 if (parse_host_port(saddr
, src_str2
) < 0)
254 int parse_host_port(struct sockaddr_in
*saddr
, const char *str
)
262 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
264 saddr
->sin_family
= AF_INET
;
265 if (buf
[0] == '\0') {
266 saddr
->sin_addr
.s_addr
= 0;
268 if (qemu_isdigit(buf
[0])) {
269 if (!inet_aton(buf
, &saddr
->sin_addr
))
272 if ((he
= gethostbyname(buf
)) == NULL
)
274 saddr
->sin_addr
= *(struct in_addr
*)he
->h_addr
;
277 port
= strtol(p
, (char **)&r
, 0);
280 saddr
->sin_port
= htons(port
);
284 #if !defined(_WIN32) && 0
285 static int parse_unix_path(struct sockaddr_un
*uaddr
, const char *str
)
290 len
= MIN(108, strlen(str
));
291 p
= strchr(str
, ',');
293 len
= MIN(len
, p
- str
);
295 memset(uaddr
, 0, sizeof(*uaddr
));
297 uaddr
->sun_family
= AF_UNIX
;
298 memcpy(uaddr
->sun_path
, str
, len
);
304 void qemu_format_nic_info_str(VLANClientState
*vc
, uint8_t macaddr
[6])
306 snprintf(vc
->info_str
, sizeof(vc
->info_str
),
307 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
309 macaddr
[0], macaddr
[1], macaddr
[2],
310 macaddr
[3], macaddr
[4], macaddr
[5]);
313 static char *assign_name(VLANClientState
*vc1
, const char *model
)
319 for (vlan
= first_vlan
; vlan
; vlan
= vlan
->next
) {
322 for (vc
= vlan
->first_client
; vc
; vc
= vc
->next
)
323 if (vc
!= vc1
&& strcmp(vc
->model
, model
) == 0)
327 snprintf(buf
, sizeof(buf
), "%s.%d", model
, id
);
332 VLANClientState
*qemu_new_vlan_client(VLANState
*vlan
,
335 NetCanReceive
*can_receive
,
337 NetReceiveIOV
*receive_iov
,
341 VLANClientState
*vc
, **pvc
;
342 vc
= qemu_mallocz(sizeof(VLANClientState
));
343 vc
->model
= strdup(model
);
345 vc
->name
= strdup(name
);
347 vc
->name
= assign_name(vc
, model
);
348 vc
->can_receive
= can_receive
;
349 vc
->receive
= receive
;
350 vc
->receive_iov
= receive_iov
;
351 vc
->cleanup
= cleanup
;
356 pvc
= &vlan
->first_client
;
363 void qemu_del_vlan_client(VLANClientState
*vc
)
365 VLANClientState
**pvc
= &vc
->vlan
->first_client
;
381 VLANClientState
*qemu_find_vlan_client(VLANState
*vlan
, void *opaque
)
383 VLANClientState
**pvc
= &vlan
->first_client
;
386 if ((*pvc
)->opaque
== opaque
)
394 int qemu_can_send_packet(VLANClientState
*sender
)
396 VLANState
*vlan
= sender
->vlan
;
399 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
404 /* no can_receive() handler, they can always receive */
405 if (!vc
->can_receive
|| vc
->can_receive(vc
)) {
413 qemu_deliver_packet(VLANClientState
*sender
, const uint8_t *buf
, int size
)
418 sender
->vlan
->delivering
= 1;
420 for (vc
= sender
->vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
432 len
= vc
->receive(vc
, buf
, size
);
434 ret
= (ret
>= 0) ? ret
: len
;
437 sender
->vlan
->delivering
= 0;
442 void qemu_flush_queued_packets(VLANClientState
*vc
)
446 while ((packet
= vc
->vlan
->send_queue
) != NULL
) {
449 vc
->vlan
->send_queue
= packet
->next
;
451 ret
= qemu_deliver_packet(packet
->sender
, packet
->data
, packet
->size
);
452 if (ret
== 0 && packet
->sent_cb
!= NULL
) {
453 packet
->next
= vc
->vlan
->send_queue
;
454 vc
->vlan
->send_queue
= packet
;
459 packet
->sent_cb(packet
->sender
);
465 static void qemu_enqueue_packet(VLANClientState
*sender
,
466 const uint8_t *buf
, int size
,
467 NetPacketSent
*sent_cb
)
471 packet
= qemu_malloc(sizeof(VLANPacket
) + size
);
472 packet
->next
= sender
->vlan
->send_queue
;
473 packet
->sender
= sender
;
475 packet
->sent_cb
= sent_cb
;
476 memcpy(packet
->data
, buf
, size
);
477 sender
->vlan
->send_queue
= packet
;
480 ssize_t
qemu_send_packet_async(VLANClientState
*sender
,
481 const uint8_t *buf
, int size
,
482 NetPacketSent
*sent_cb
)
486 if (sender
->link_down
) {
491 printf("vlan %d send:\n", sender
->vlan
->id
);
492 hex_dump(stdout
, buf
, size
);
495 if (sender
->vlan
->delivering
) {
496 qemu_enqueue_packet(sender
, buf
, size
, NULL
);
500 ret
= qemu_deliver_packet(sender
, buf
, size
);
501 if (ret
== 0 && sent_cb
!= NULL
) {
502 qemu_enqueue_packet(sender
, buf
, size
, sent_cb
);
506 qemu_flush_queued_packets(sender
);
511 void qemu_send_packet(VLANClientState
*vc
, const uint8_t *buf
, int size
)
513 qemu_send_packet_async(vc
, buf
, size
, NULL
);
516 static ssize_t
vc_sendv_compat(VLANClientState
*vc
, const struct iovec
*iov
,
519 uint8_t buffer
[4096];
523 for (i
= 0; i
< iovcnt
; i
++) {
526 len
= MIN(sizeof(buffer
) - offset
, iov
[i
].iov_len
);
527 memcpy(buffer
+ offset
, iov
[i
].iov_base
, len
);
531 return vc
->receive(vc
, buffer
, offset
);
534 static ssize_t
calc_iov_length(const struct iovec
*iov
, int iovcnt
)
539 for (i
= 0; i
< iovcnt
; i
++)
540 offset
+= iov
[i
].iov_len
;
544 static int qemu_deliver_packet_iov(VLANClientState
*sender
,
545 const struct iovec
*iov
, int iovcnt
)
550 sender
->vlan
->delivering
= 1;
552 for (vc
= sender
->vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
560 ret
= calc_iov_length(iov
, iovcnt
);
564 if (vc
->receive_iov
) {
565 len
= vc
->receive_iov(vc
, iov
, iovcnt
);
567 len
= vc_sendv_compat(vc
, iov
, iovcnt
);
570 ret
= (ret
>= 0) ? ret
: len
;
573 sender
->vlan
->delivering
= 0;
578 static ssize_t
qemu_enqueue_packet_iov(VLANClientState
*sender
,
579 const struct iovec
*iov
, int iovcnt
,
580 NetPacketSent
*sent_cb
)
586 max_len
= calc_iov_length(iov
, iovcnt
);
588 packet
= qemu_malloc(sizeof(VLANPacket
) + max_len
);
589 packet
->next
= sender
->vlan
->send_queue
;
590 packet
->sender
= sender
;
591 packet
->sent_cb
= sent_cb
;
594 for (i
= 0; i
< iovcnt
; i
++) {
595 size_t len
= iov
[i
].iov_len
;
597 memcpy(packet
->data
+ packet
->size
, iov
[i
].iov_base
, len
);
601 sender
->vlan
->send_queue
= packet
;
606 ssize_t
qemu_sendv_packet_async(VLANClientState
*sender
,
607 const struct iovec
*iov
, int iovcnt
,
608 NetPacketSent
*sent_cb
)
612 if (sender
->link_down
) {
613 return calc_iov_length(iov
, iovcnt
);
616 if (sender
->vlan
->delivering
) {
617 return qemu_enqueue_packet_iov(sender
, iov
, iovcnt
, NULL
);
620 ret
= qemu_deliver_packet_iov(sender
, iov
, iovcnt
);
621 if (ret
== 0 && sent_cb
!= NULL
) {
622 qemu_enqueue_packet_iov(sender
, iov
, iovcnt
, sent_cb
);
626 qemu_flush_queued_packets(sender
);
632 qemu_sendv_packet(VLANClientState
*vc
, const struct iovec
*iov
, int iovcnt
)
634 return qemu_sendv_packet_async(vc
, iov
, iovcnt
, NULL
);
637 static void config_error(Monitor
*mon
, const char *fmt
, ...)
643 monitor_vprintf(mon
, fmt
, ap
);
645 fprintf(stderr
, "qemu: ");
646 vfprintf(stderr
, fmt
, ap
);
652 #if defined(CONFIG_SLIRP)
654 /* slirp network adapter */
656 struct slirp_config_str
{
657 struct slirp_config_str
*next
;
661 static int slirp_inited
;
662 static struct slirp_config_str
*slirp_redirs
;
664 static const char *slirp_smb_export
;
666 static VLANClientState
*slirp_vc
;
668 static void slirp_smb(const char *exported_dir
);
669 static void slirp_redirection(Monitor
*mon
, const char *redir_str
);
671 int slirp_can_output(void)
673 return !slirp_vc
|| qemu_can_send_packet(slirp_vc
);
676 void slirp_output(const uint8_t *pkt
, int pkt_len
)
679 printf("slirp output:\n");
680 hex_dump(stdout
, pkt
, pkt_len
);
684 qemu_send_packet(slirp_vc
, pkt
, pkt_len
);
687 int slirp_is_inited(void)
692 static ssize_t
slirp_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
695 printf("slirp input:\n");
696 hex_dump(stdout
, buf
, size
);
698 slirp_input(buf
, size
);
702 static int slirp_in_use
;
704 static void net_slirp_cleanup(VLANClientState
*vc
)
709 static int net_slirp_init(VLANState
*vlan
, const char *model
, const char *name
,
710 int restricted
, const char *ip
)
713 /* slirp only supports a single instance so far */
718 slirp_init(restricted
, ip
);
720 while (slirp_redirs
) {
721 struct slirp_config_str
*config
= slirp_redirs
;
723 slirp_redirection(NULL
, config
->str
);
724 slirp_redirs
= config
->next
;
728 if (slirp_smb_export
) {
729 slirp_smb(slirp_smb_export
);
734 slirp_vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, slirp_receive
,
735 NULL
, net_slirp_cleanup
, NULL
);
736 slirp_vc
->info_str
[0] = '\0';
741 static void net_slirp_redir_print(void *opaque
, int is_udp
,
742 struct in_addr
*laddr
, u_int lport
,
743 struct in_addr
*faddr
, u_int fport
)
745 Monitor
*mon
= (Monitor
*)opaque
;
750 h_addr
= ntohl(faddr
->s_addr
);
751 g_addr
= ntohl(laddr
->s_addr
);
753 monitor_printf(mon
, " %s |", is_udp
? "udp" : "tcp" );
754 snprintf(buf
, 15, "%d.%d.%d.%d", (h_addr
>> 24) & 0xff,
755 (h_addr
>> 16) & 0xff,
756 (h_addr
>> 8) & 0xff,
758 monitor_printf(mon
, " %15s |", buf
);
759 monitor_printf(mon
, " %5d |", fport
);
761 snprintf(buf
, 15, "%d.%d.%d.%d", (g_addr
>> 24) & 0xff,
762 (g_addr
>> 16) & 0xff,
763 (g_addr
>> 8) & 0xff,
765 monitor_printf(mon
, " %15s |", buf
);
766 monitor_printf(mon
, " %5d\n", lport
);
770 static void net_slirp_redir_list(Monitor
*mon
)
775 monitor_printf(mon
, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
776 monitor_printf(mon
, " | | | | \n");
777 slirp_redir_loop(net_slirp_redir_print
, mon
);
780 static void net_slirp_redir_rm(Monitor
*mon
, const char *port_str
)
784 const char *p
= port_str
;
791 if (!port_str
|| !port_str
[0])
794 get_str_sep(buf
, sizeof(buf
), &p
, ':');
796 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
798 } else if (!strcmp(buf
, "udp")) {
806 n
= slirp_redir_rm(is_udp
, host_port
);
808 monitor_printf(mon
, "removed %d redirections to %s port %d\n", n
,
809 is_udp
? "udp" : "tcp", host_port
);
813 monitor_printf(mon
, "invalid format\n");
816 static void slirp_redirection(Monitor
*mon
, const char *redir_str
)
818 struct in_addr guest_addr
;
819 int host_port
, guest_port
;
825 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
828 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
830 } else if (!strcmp(buf
, "udp")) {
836 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
839 host_port
= strtol(buf
, &r
, 0);
844 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
847 if (buf
[0] == '\0') {
848 pstrcpy(buf
, sizeof(buf
), "10.0.2.15");
850 if (!inet_aton(buf
, &guest_addr
)) {
854 guest_port
= strtol(p
, &r
, 0);
859 if (slirp_redir(is_udp
, host_port
, guest_addr
, guest_port
) < 0) {
860 config_error(mon
, "could not set up redirection '%s'\n", redir_str
);
865 config_error(mon
, "invalid redirection format '%s'\n", redir_str
);
868 void net_slirp_redir(Monitor
*mon
, const char *redir_str
, const char *redir_opt2
)
870 struct slirp_config_str
*config
;
874 monitor_printf(mon
, "user mode network stack not in use\n");
876 config
= qemu_malloc(sizeof(*config
));
877 config
->str
= redir_str
;
878 config
->next
= slirp_redirs
;
879 slirp_redirs
= config
;
884 if (!strcmp(redir_str
, "remove")) {
885 net_slirp_redir_rm(mon
, redir_opt2
);
889 if (!strcmp(redir_str
, "list")) {
890 net_slirp_redir_list(mon
);
894 slirp_redirection(mon
, redir_str
);
899 static char smb_dir
[1024];
901 static void erase_dir(char *dir_name
)
907 /* erase all the files in the directory */
908 if ((d
= opendir(dir_name
)) != NULL
) {
913 if (strcmp(de
->d_name
, ".") != 0 &&
914 strcmp(de
->d_name
, "..") != 0) {
915 snprintf(filename
, sizeof(filename
), "%s/%s",
916 smb_dir
, de
->d_name
);
917 if (unlink(filename
) != 0) /* is it a directory? */
926 /* automatic user mode samba server configuration */
927 static void smb_exit(void)
932 static void slirp_smb(const char *exported_dir
)
935 char smb_cmdline
[1024];
938 /* XXX: better tmp dir construction */
939 snprintf(smb_dir
, sizeof(smb_dir
), "/tmp/qemu-smb.%ld", (long)getpid());
940 if (mkdir(smb_dir
, 0700) < 0) {
941 fprintf(stderr
, "qemu: could not create samba server dir '%s'\n", smb_dir
);
944 snprintf(smb_conf
, sizeof(smb_conf
), "%s/%s", smb_dir
, "smb.conf");
946 f
= fopen(smb_conf
, "w");
948 fprintf(stderr
, "qemu: could not create samba server configuration file '%s'\n", smb_conf
);
955 "socket address=127.0.0.1\n"
957 "lock directory=%s\n"
958 "log file=%s/log.smbd\n"
959 "smb passwd file=%s/smbpasswd\n"
975 snprintf(smb_cmdline
, sizeof(smb_cmdline
), "%s -s %s",
976 SMBD_COMMAND
, smb_conf
);
978 slirp_add_exec(0, smb_cmdline
, 4, 139);
981 /* automatic user mode samba server configuration */
982 void net_slirp_smb(const char *exported_dir
)
984 if (slirp_smb_export
) {
985 fprintf(stderr
, "-smb given twice\n");
988 slirp_smb_export
= exported_dir
;
990 slirp_smb(exported_dir
);
994 #endif /* !defined(_WIN32) */
996 void do_info_slirp(Monitor
*mon
)
1002 CharDriverState
*hd
;
1006 static int vmchannel_can_read(void *opaque
)
1008 struct VMChannel
*vmc
= (struct VMChannel
*)opaque
;
1009 return slirp_socket_can_recv(4, vmc
->port
);
1012 static void vmchannel_read(void *opaque
, const uint8_t *buf
, int size
)
1014 struct VMChannel
*vmc
= (struct VMChannel
*)opaque
;
1015 slirp_socket_recv(4, vmc
->port
, buf
, size
);
1018 #endif /* CONFIG_SLIRP */
1020 #if !defined(_WIN32)
1022 typedef struct TAPState
{
1023 VLANClientState
*vc
;
1025 char down_script
[1024];
1026 char down_script_arg
[128];
1030 static int launch_script(const char *setup_script
, const char *ifname
, int fd
);
1032 static ssize_t
tap_receive_iov(VLANClientState
*vc
, const struct iovec
*iov
,
1035 TAPState
*s
= vc
->opaque
;
1039 len
= writev(s
->fd
, iov
, iovcnt
);
1040 } while (len
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
1045 static ssize_t
tap_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1047 TAPState
*s
= vc
->opaque
;
1051 len
= write(s
->fd
, buf
, size
);
1052 } while (len
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
1057 static int tap_can_send(void *opaque
)
1059 TAPState
*s
= opaque
;
1061 return qemu_can_send_packet(s
->vc
);
1065 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1070 sbuf
.maxlen
= maxlen
;
1071 sbuf
.buf
= (char *)buf
;
1073 return getmsg(tapfd
, NULL
, &sbuf
, &f
) >= 0 ? sbuf
.len
: -1;
1076 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1078 return read(tapfd
, buf
, maxlen
);
1082 static void tap_send(void *opaque
)
1084 TAPState
*s
= opaque
;
1087 size
= tap_read_packet(s
->fd
, s
->buf
, sizeof(s
->buf
));
1089 qemu_send_packet(s
->vc
, s
->buf
, size
);
1093 static void tap_cleanup(VLANClientState
*vc
)
1095 TAPState
*s
= vc
->opaque
;
1097 if (s
->down_script
[0])
1098 launch_script(s
->down_script
, s
->down_script_arg
, s
->fd
);
1100 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1107 static TAPState
*net_tap_fd_init(VLANState
*vlan
,
1114 s
= qemu_mallocz(sizeof(TAPState
));
1116 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, tap_receive
,
1117 tap_receive_iov
, tap_cleanup
, s
);
1118 qemu_set_fd_handler2(s
->fd
, tap_can_send
, tap_send
, NULL
, s
);
1119 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "fd=%d", fd
);
1123 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1124 static int tap_open(char *ifname
, int ifname_size
)
1130 TFR(fd
= open("/dev/tap", O_RDWR
));
1132 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
1137 dev
= devname(s
.st_rdev
, S_IFCHR
);
1138 pstrcpy(ifname
, ifname_size
, dev
);
1140 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1143 #elif defined(__sun__)
1144 #define TUNNEWPPA (('T'<<16) | 0x0001)
1146 * Allocate TAP device, returns opened fd.
1147 * Stores dev name in the first arg(must be large enough).
1149 static int tap_alloc(char *dev
, size_t dev_size
)
1151 int tap_fd
, if_fd
, ppa
= -1;
1152 static int ip_fd
= 0;
1155 static int arp_fd
= 0;
1156 int ip_muxid
, arp_muxid
;
1157 struct strioctl strioc_if
, strioc_ppa
;
1158 int link_type
= I_PLINK
;;
1160 char actual_name
[32] = "";
1162 memset(&ifr
, 0x0, sizeof(ifr
));
1166 while( *ptr
&& !qemu_isdigit((int)*ptr
) ) ptr
++;
1170 /* Check if IP device was opened */
1174 TFR(ip_fd
= open("/dev/udp", O_RDWR
, 0));
1176 syslog(LOG_ERR
, "Can't open /dev/ip (actually /dev/udp)");
1180 TFR(tap_fd
= open("/dev/tap", O_RDWR
, 0));
1182 syslog(LOG_ERR
, "Can't open /dev/tap");
1186 /* Assign a new PPA and get its unit number. */
1187 strioc_ppa
.ic_cmd
= TUNNEWPPA
;
1188 strioc_ppa
.ic_timout
= 0;
1189 strioc_ppa
.ic_len
= sizeof(ppa
);
1190 strioc_ppa
.ic_dp
= (char *)&ppa
;
1191 if ((ppa
= ioctl (tap_fd
, I_STR
, &strioc_ppa
)) < 0)
1192 syslog (LOG_ERR
, "Can't assign new interface");
1194 TFR(if_fd
= open("/dev/tap", O_RDWR
, 0));
1196 syslog(LOG_ERR
, "Can't open /dev/tap (2)");
1199 if(ioctl(if_fd
, I_PUSH
, "ip") < 0){
1200 syslog(LOG_ERR
, "Can't push IP module");
1204 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) < 0)
1205 syslog(LOG_ERR
, "Can't get flags\n");
1207 snprintf (actual_name
, 32, "tap%d", ppa
);
1208 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1211 /* Assign ppa according to the unit number returned by tun device */
1213 if (ioctl (if_fd
, SIOCSLIFNAME
, &ifr
) < 0)
1214 syslog (LOG_ERR
, "Can't set PPA %d", ppa
);
1215 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) <0)
1216 syslog (LOG_ERR
, "Can't get flags\n");
1217 /* Push arp module to if_fd */
1218 if (ioctl (if_fd
, I_PUSH
, "arp") < 0)
1219 syslog (LOG_ERR
, "Can't push ARP module (2)");
1221 /* Push arp module to ip_fd */
1222 if (ioctl (ip_fd
, I_POP
, NULL
) < 0)
1223 syslog (LOG_ERR
, "I_POP failed\n");
1224 if (ioctl (ip_fd
, I_PUSH
, "arp") < 0)
1225 syslog (LOG_ERR
, "Can't push ARP module (3)\n");
1227 TFR(arp_fd
= open ("/dev/tap", O_RDWR
, 0));
1229 syslog (LOG_ERR
, "Can't open %s\n", "/dev/tap");
1231 /* Set ifname to arp */
1232 strioc_if
.ic_cmd
= SIOCSLIFNAME
;
1233 strioc_if
.ic_timout
= 0;
1234 strioc_if
.ic_len
= sizeof(ifr
);
1235 strioc_if
.ic_dp
= (char *)&ifr
;
1236 if (ioctl(arp_fd
, I_STR
, &strioc_if
) < 0){
1237 syslog (LOG_ERR
, "Can't set ifname to arp\n");
1240 if((ip_muxid
= ioctl(ip_fd
, I_LINK
, if_fd
)) < 0){
1241 syslog(LOG_ERR
, "Can't link TAP device to IP");
1245 if ((arp_muxid
= ioctl (ip_fd
, link_type
, arp_fd
)) < 0)
1246 syslog (LOG_ERR
, "Can't link TAP device to ARP");
1250 memset(&ifr
, 0x0, sizeof(ifr
));
1251 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1252 ifr
.lifr_ip_muxid
= ip_muxid
;
1253 ifr
.lifr_arp_muxid
= arp_muxid
;
1255 if (ioctl (ip_fd
, SIOCSLIFMUXID
, &ifr
) < 0)
1257 ioctl (ip_fd
, I_PUNLINK
, arp_muxid
);
1258 ioctl (ip_fd
, I_PUNLINK
, ip_muxid
);
1259 syslog (LOG_ERR
, "Can't set multiplexor id");
1262 snprintf(dev
, dev_size
, "tap%d", ppa
);
1266 static int tap_open(char *ifname
, int ifname_size
)
1270 if( (fd
= tap_alloc(dev
, sizeof(dev
))) < 0 ){
1271 fprintf(stderr
, "Cannot allocate TAP device\n");
1274 pstrcpy(ifname
, ifname_size
, dev
);
1275 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1278 #elif defined (_AIX)
1279 static int tap_open(char *ifname
, int ifname_size
)
1281 fprintf (stderr
, "no tap on AIX\n");
1285 static int tap_open(char *ifname
, int ifname_size
)
1290 TFR(fd
= open("/dev/net/tun", O_RDWR
));
1292 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1295 memset(&ifr
, 0, sizeof(ifr
));
1296 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
1297 if (ifname
[0] != '\0')
1298 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, ifname
);
1300 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tap%d");
1301 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
1303 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1307 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
1308 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1313 static int launch_script(const char *setup_script
, const char *ifname
, int fd
)
1315 sigset_t oldmask
, mask
;
1321 sigaddset(&mask
, SIGCHLD
);
1322 sigprocmask(SIG_BLOCK
, &mask
, &oldmask
);
1324 /* try to launch network script */
1327 int open_max
= sysconf(_SC_OPEN_MAX
), i
;
1329 for (i
= 0; i
< open_max
; i
++) {
1330 if (i
!= STDIN_FILENO
&&
1331 i
!= STDOUT_FILENO
&&
1332 i
!= STDERR_FILENO
&&
1338 *parg
++ = (char *)setup_script
;
1339 *parg
++ = (char *)ifname
;
1341 execv(setup_script
, args
);
1343 } else if (pid
> 0) {
1344 while (waitpid(pid
, &status
, 0) != pid
) {
1347 sigprocmask(SIG_SETMASK
, &oldmask
, NULL
);
1349 if (WIFEXITED(status
) && WEXITSTATUS(status
) == 0) {
1353 fprintf(stderr
, "%s: could not launch network script\n", setup_script
);
1357 static int net_tap_init(VLANState
*vlan
, const char *model
,
1358 const char *name
, const char *ifname1
,
1359 const char *setup_script
, const char *down_script
)
1365 if (ifname1
!= NULL
)
1366 pstrcpy(ifname
, sizeof(ifname
), ifname1
);
1369 TFR(fd
= tap_open(ifname
, sizeof(ifname
)));
1373 if (!setup_script
|| !strcmp(setup_script
, "no"))
1375 if (setup_script
[0] != '\0') {
1376 if (launch_script(setup_script
, ifname
, fd
))
1379 s
= net_tap_fd_init(vlan
, model
, name
, fd
);
1380 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1381 "ifname=%s,script=%s,downscript=%s",
1382 ifname
, setup_script
, down_script
);
1383 if (down_script
&& strcmp(down_script
, "no")) {
1384 snprintf(s
->down_script
, sizeof(s
->down_script
), "%s", down_script
);
1385 snprintf(s
->down_script_arg
, sizeof(s
->down_script_arg
), "%s", ifname
);
1390 #endif /* !_WIN32 */
1392 #if defined(CONFIG_VDE)
1393 typedef struct VDEState
{
1394 VLANClientState
*vc
;
1398 static void vde_to_qemu(void *opaque
)
1400 VDEState
*s
= opaque
;
1404 size
= vde_recv(s
->vde
, (char *)buf
, sizeof(buf
), 0);
1406 qemu_send_packet(s
->vc
, buf
, size
);
1410 static ssize_t
vde_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1412 VDEState
*s
= vc
->opaque
;
1416 ret
= vde_send(s
->vde
, (const char *)buf
, size
, 0);
1417 } while (ret
< 0 && errno
== EINTR
);
1422 static void vde_cleanup(VLANClientState
*vc
)
1424 VDEState
*s
= vc
->opaque
;
1425 qemu_set_fd_handler(vde_datafd(s
->vde
), NULL
, NULL
, NULL
);
1430 static int net_vde_init(VLANState
*vlan
, const char *model
,
1431 const char *name
, const char *sock
,
1432 int port
, const char *group
, int mode
)
1435 char *init_group
= strlen(group
) ? (char *)group
: NULL
;
1436 char *init_sock
= strlen(sock
) ? (char *)sock
: NULL
;
1438 struct vde_open_args args
= {
1440 .group
= init_group
,
1444 s
= qemu_mallocz(sizeof(VDEState
));
1445 s
->vde
= vde_open(init_sock
, (char *)"QEMU", &args
);
1450 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, vde_receive
,
1451 NULL
, vde_cleanup
, s
);
1452 qemu_set_fd_handler(vde_datafd(s
->vde
), vde_to_qemu
, NULL
, s
);
1453 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "sock=%s,fd=%d",
1454 sock
, vde_datafd(s
->vde
));
1459 /* network connection */
1460 typedef struct NetSocketState
{
1461 VLANClientState
*vc
;
1463 int state
; /* 0 = getting length, 1 = getting data */
1465 unsigned int packet_len
;
1467 struct sockaddr_in dgram_dst
; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1470 typedef struct NetSocketListenState
{
1475 } NetSocketListenState
;
1477 /* XXX: we consider we can send the whole packet without blocking */
1478 static ssize_t
net_socket_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1480 NetSocketState
*s
= vc
->opaque
;
1484 send_all(s
->fd
, (const uint8_t *)&len
, sizeof(len
));
1485 return send_all(s
->fd
, buf
, size
);
1488 static ssize_t
net_socket_receive_dgram(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1490 NetSocketState
*s
= vc
->opaque
;
1492 return sendto(s
->fd
, buf
, size
, 0,
1493 (struct sockaddr
*)&s
->dgram_dst
, sizeof(s
->dgram_dst
));
1496 static void net_socket_send(void *opaque
)
1498 NetSocketState
*s
= opaque
;
1504 size
= recv(s
->fd
, buf1
, sizeof(buf1
), 0);
1506 err
= socket_error();
1507 if (err
!= EWOULDBLOCK
)
1509 } else if (size
== 0) {
1510 /* end of connection */
1512 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1518 /* reassemble a packet from the network */
1524 memcpy(s
->buf
+ s
->index
, buf
, l
);
1528 if (s
->index
== 4) {
1530 s
->packet_len
= ntohl(*(uint32_t *)s
->buf
);
1536 l
= s
->packet_len
- s
->index
;
1539 if (s
->index
+ l
<= sizeof(s
->buf
)) {
1540 memcpy(s
->buf
+ s
->index
, buf
, l
);
1542 fprintf(stderr
, "serious error: oversized packet received,"
1543 "connection terminated.\n");
1551 if (s
->index
>= s
->packet_len
) {
1552 qemu_send_packet(s
->vc
, s
->buf
, s
->packet_len
);
1561 static void net_socket_send_dgram(void *opaque
)
1563 NetSocketState
*s
= opaque
;
1566 size
= recv(s
->fd
, s
->buf
, sizeof(s
->buf
), 0);
1570 /* end of connection */
1571 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1574 qemu_send_packet(s
->vc
, s
->buf
, size
);
1577 static int net_socket_mcast_create(struct sockaddr_in
*mcastaddr
)
1582 if (!IN_MULTICAST(ntohl(mcastaddr
->sin_addr
.s_addr
))) {
1583 fprintf(stderr
, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1584 inet_ntoa(mcastaddr
->sin_addr
),
1585 (int)ntohl(mcastaddr
->sin_addr
.s_addr
));
1589 fd
= socket(PF_INET
, SOCK_DGRAM
, 0);
1591 perror("socket(PF_INET, SOCK_DGRAM)");
1596 ret
=setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
,
1597 (const char *)&val
, sizeof(val
));
1599 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1603 ret
= bind(fd
, (struct sockaddr
*)mcastaddr
, sizeof(*mcastaddr
));
1609 /* Add host to multicast group */
1610 imr
.imr_multiaddr
= mcastaddr
->sin_addr
;
1611 imr
.imr_interface
.s_addr
= htonl(INADDR_ANY
);
1613 ret
= setsockopt(fd
, IPPROTO_IP
, IP_ADD_MEMBERSHIP
,
1614 (const char *)&imr
, sizeof(struct ip_mreq
));
1616 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1620 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1622 ret
=setsockopt(fd
, IPPROTO_IP
, IP_MULTICAST_LOOP
,
1623 (const char *)&val
, sizeof(val
));
1625 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1629 socket_set_nonblock(fd
);
1637 static void net_socket_cleanup(VLANClientState
*vc
)
1639 NetSocketState
*s
= vc
->opaque
;
1640 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1645 static NetSocketState
*net_socket_fd_init_dgram(VLANState
*vlan
,
1648 int fd
, int is_connected
)
1650 struct sockaddr_in saddr
;
1652 socklen_t saddr_len
;
1655 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1656 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1657 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1661 if (getsockname(fd
, (struct sockaddr
*) &saddr
, &saddr_len
) == 0) {
1663 if (saddr
.sin_addr
.s_addr
==0) {
1664 fprintf(stderr
, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1668 /* clone dgram socket */
1669 newfd
= net_socket_mcast_create(&saddr
);
1671 /* error already reported by net_socket_mcast_create() */
1675 /* clone newfd to fd, close newfd */
1680 fprintf(stderr
, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1681 fd
, strerror(errno
));
1686 s
= qemu_mallocz(sizeof(NetSocketState
));
1689 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, net_socket_receive_dgram
,
1690 NULL
, net_socket_cleanup
, s
);
1691 qemu_set_fd_handler(s
->fd
, net_socket_send_dgram
, NULL
, s
);
1693 /* mcast: save bound address as dst */
1694 if (is_connected
) s
->dgram_dst
=saddr
;
1696 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1697 "socket: fd=%d (%s mcast=%s:%d)",
1698 fd
, is_connected
? "cloned" : "",
1699 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1703 static void net_socket_connect(void *opaque
)
1705 NetSocketState
*s
= opaque
;
1706 qemu_set_fd_handler(s
->fd
, net_socket_send
, NULL
, s
);
1709 static NetSocketState
*net_socket_fd_init_stream(VLANState
*vlan
,
1712 int fd
, int is_connected
)
1715 s
= qemu_mallocz(sizeof(NetSocketState
));
1717 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, net_socket_receive
,
1718 NULL
, net_socket_cleanup
, s
);
1719 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1720 "socket: fd=%d", fd
);
1722 net_socket_connect(s
);
1724 qemu_set_fd_handler(s
->fd
, NULL
, net_socket_connect
, s
);
1729 static NetSocketState
*net_socket_fd_init(VLANState
*vlan
,
1730 const char *model
, const char *name
,
1731 int fd
, int is_connected
)
1733 int so_type
=-1, optlen
=sizeof(so_type
);
1735 if(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&so_type
,
1736 (socklen_t
*)&optlen
)< 0) {
1737 fprintf(stderr
, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd
);
1742 return net_socket_fd_init_dgram(vlan
, model
, name
, fd
, is_connected
);
1744 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
1746 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1747 fprintf(stderr
, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type
, fd
);
1748 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
1753 static void net_socket_accept(void *opaque
)
1755 NetSocketListenState
*s
= opaque
;
1757 struct sockaddr_in saddr
;
1762 len
= sizeof(saddr
);
1763 fd
= accept(s
->fd
, (struct sockaddr
*)&saddr
, &len
);
1764 if (fd
< 0 && errno
!= EINTR
) {
1766 } else if (fd
>= 0) {
1770 s1
= net_socket_fd_init(s
->vlan
, s
->model
, s
->name
, fd
, 1);
1774 snprintf(s1
->vc
->info_str
, sizeof(s1
->vc
->info_str
),
1775 "socket: connection from %s:%d",
1776 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1780 static int net_socket_listen_init(VLANState
*vlan
,
1783 const char *host_str
)
1785 NetSocketListenState
*s
;
1787 struct sockaddr_in saddr
;
1789 if (parse_host_port(&saddr
, host_str
) < 0)
1792 s
= qemu_mallocz(sizeof(NetSocketListenState
));
1794 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
1799 socket_set_nonblock(fd
);
1801 /* allow fast reuse */
1803 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (const char *)&val
, sizeof(val
));
1805 ret
= bind(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
1810 ret
= listen(fd
, 0);
1816 s
->model
= strdup(model
);
1817 s
->name
= name
? strdup(name
) : NULL
;
1819 qemu_set_fd_handler(fd
, net_socket_accept
, NULL
, s
);
1823 static int net_socket_connect_init(VLANState
*vlan
,
1826 const char *host_str
)
1829 int fd
, connected
, ret
, err
;
1830 struct sockaddr_in saddr
;
1832 if (parse_host_port(&saddr
, host_str
) < 0)
1835 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
1840 socket_set_nonblock(fd
);
1844 ret
= connect(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
1846 err
= socket_error();
1847 if (err
== EINTR
|| err
== EWOULDBLOCK
) {
1848 } else if (err
== EINPROGRESS
) {
1851 } else if (err
== WSAEALREADY
) {
1864 s
= net_socket_fd_init(vlan
, model
, name
, fd
, connected
);
1867 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1868 "socket: connect to %s:%d",
1869 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1873 static int net_socket_mcast_init(VLANState
*vlan
,
1876 const char *host_str
)
1880 struct sockaddr_in saddr
;
1882 if (parse_host_port(&saddr
, host_str
) < 0)
1886 fd
= net_socket_mcast_create(&saddr
);
1890 s
= net_socket_fd_init(vlan
, model
, name
, fd
, 0);
1894 s
->dgram_dst
= saddr
;
1896 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1897 "socket: mcast=%s:%d",
1898 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1903 typedef struct DumpState
{
1904 VLANClientState
*pcap_vc
;
1909 #define PCAP_MAGIC 0xa1b2c3d4
1911 struct pcap_file_hdr
{
1913 uint16_t version_major
;
1914 uint16_t version_minor
;
1921 struct pcap_sf_pkthdr
{
1930 static ssize_t
dump_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1932 DumpState
*s
= vc
->opaque
;
1933 struct pcap_sf_pkthdr hdr
;
1937 /* Early return in case of previous error. */
1942 ts
= muldiv64(qemu_get_clock(vm_clock
), 1000000, ticks_per_sec
);
1943 caplen
= size
> s
->pcap_caplen
? s
->pcap_caplen
: size
;
1945 hdr
.ts
.tv_sec
= ts
/ 1000000;
1946 hdr
.ts
.tv_usec
= ts
% 1000000;
1947 hdr
.caplen
= caplen
;
1949 if (write(s
->fd
, &hdr
, sizeof(hdr
)) != sizeof(hdr
) ||
1950 write(s
->fd
, buf
, caplen
) != caplen
) {
1951 qemu_log("-net dump write error - stop dump\n");
1959 static void net_dump_cleanup(VLANClientState
*vc
)
1961 DumpState
*s
= vc
->opaque
;
1967 static int net_dump_init(Monitor
*mon
, VLANState
*vlan
, const char *device
,
1968 const char *name
, const char *filename
, int len
)
1970 struct pcap_file_hdr hdr
;
1973 s
= qemu_malloc(sizeof(DumpState
));
1975 s
->fd
= open(filename
, O_CREAT
| O_WRONLY
, 0644);
1977 config_error(mon
, "-net dump: can't open %s\n", filename
);
1981 s
->pcap_caplen
= len
;
1983 hdr
.magic
= PCAP_MAGIC
;
1984 hdr
.version_major
= 2;
1985 hdr
.version_minor
= 4;
1988 hdr
.snaplen
= s
->pcap_caplen
;
1991 if (write(s
->fd
, &hdr
, sizeof(hdr
)) < sizeof(hdr
)) {
1992 config_error(mon
, "-net dump write error: %s\n", strerror(errno
));
1998 s
->pcap_vc
= qemu_new_vlan_client(vlan
, device
, name
, NULL
, dump_receive
, NULL
,
1999 net_dump_cleanup
, s
);
2000 snprintf(s
->pcap_vc
->info_str
, sizeof(s
->pcap_vc
->info_str
),
2001 "dump to %s (len=%d)", filename
, len
);
2005 /* find or alloc a new VLAN */
2006 VLANState
*qemu_find_vlan(int id
)
2008 VLANState
**pvlan
, *vlan
;
2009 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2013 vlan
= qemu_mallocz(sizeof(VLANState
));
2016 pvlan
= &first_vlan
;
2017 while (*pvlan
!= NULL
)
2018 pvlan
= &(*pvlan
)->next
;
2023 static int nic_get_free_idx(void)
2027 for (index
= 0; index
< MAX_NICS
; index
++)
2028 if (!nd_table
[index
].used
)
2033 void qemu_check_nic_model(NICInfo
*nd
, const char *model
)
2035 const char *models
[2];
2040 qemu_check_nic_model_list(nd
, models
, model
);
2043 void qemu_check_nic_model_list(NICInfo
*nd
, const char * const *models
,
2044 const char *default_model
)
2046 int i
, exit_status
= 0;
2049 nd
->model
= strdup(default_model
);
2051 if (strcmp(nd
->model
, "?") != 0) {
2052 for (i
= 0 ; models
[i
]; i
++)
2053 if (strcmp(nd
->model
, models
[i
]) == 0)
2056 fprintf(stderr
, "qemu: Unsupported NIC model: %s\n", nd
->model
);
2060 fprintf(stderr
, "qemu: Supported NIC models: ");
2061 for (i
= 0 ; models
[i
]; i
++)
2062 fprintf(stderr
, "%s%c", models
[i
], models
[i
+1] ? ',' : '\n');
2067 int net_client_init(Monitor
*mon
, const char *device
, const char *p
)
2069 static const char * const fd_params
[] = {
2070 "vlan", "name", "fd", NULL
2078 if (get_param_value(buf
, sizeof(buf
), "vlan", p
)) {
2079 vlan_id
= strtol(buf
, NULL
, 0);
2081 vlan
= qemu_find_vlan(vlan_id
);
2083 if (get_param_value(buf
, sizeof(buf
), "name", p
)) {
2084 name
= qemu_strdup(buf
);
2086 if (!strcmp(device
, "nic")) {
2087 static const char * const nic_params
[] = {
2088 "vlan", "name", "macaddr", "model", NULL
2092 int idx
= nic_get_free_idx();
2094 if (check_params(buf
, sizeof(buf
), nic_params
, p
) < 0) {
2095 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2099 if (idx
== -1 || nb_nics
>= MAX_NICS
) {
2100 config_error(mon
, "Too Many NICs\n");
2104 nd
= &nd_table
[idx
];
2105 macaddr
= nd
->macaddr
;
2111 macaddr
[5] = 0x56 + idx
;
2113 if (get_param_value(buf
, sizeof(buf
), "macaddr", p
)) {
2114 if (parse_macaddr(macaddr
, buf
) < 0) {
2115 config_error(mon
, "invalid syntax for ethernet address\n");
2120 if (get_param_value(buf
, sizeof(buf
), "model", p
)) {
2121 nd
->model
= strdup(buf
);
2128 vlan
->nb_guest_devs
++;
2131 if (!strcmp(device
, "none")) {
2133 config_error(mon
, "'none' takes no parameters\n");
2137 /* does nothing. It is needed to signal that no network cards
2142 if (!strcmp(device
, "user")) {
2143 static const char * const slirp_params
[] = {
2144 "vlan", "name", "hostname", "restrict", "ip", NULL
2149 if (check_params(buf
, sizeof(buf
), slirp_params
, p
) < 0) {
2150 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2154 if (get_param_value(buf
, sizeof(buf
), "hostname", p
)) {
2155 pstrcpy(slirp_hostname
, sizeof(slirp_hostname
), buf
);
2157 if (get_param_value(buf
, sizeof(buf
), "restrict", p
)) {
2158 restricted
= (buf
[0] == 'y') ? 1 : 0;
2160 if (get_param_value(buf
, sizeof(buf
), "ip", p
)) {
2161 ip
= qemu_strdup(buf
);
2163 vlan
->nb_host_devs
++;
2164 ret
= net_slirp_init(vlan
, device
, name
, restricted
, ip
);
2166 } else if (!strcmp(device
, "channel")) {
2168 char name
[20], *devname
;
2169 struct VMChannel
*vmc
;
2171 port
= strtol(p
, &devname
, 10);
2173 if (port
< 1 || port
> 65535) {
2174 config_error(mon
, "vmchannel wrong port number\n");
2178 vmc
= malloc(sizeof(struct VMChannel
));
2179 snprintf(name
, 20, "vmchannel%ld", port
);
2180 vmc
->hd
= qemu_chr_open(name
, devname
, NULL
);
2182 config_error(mon
, "could not open vmchannel device '%s'\n",
2188 slirp_add_exec(3, vmc
->hd
, 4, port
);
2189 qemu_chr_add_handlers(vmc
->hd
, vmchannel_can_read
, vmchannel_read
,
2195 if (!strcmp(device
, "tap")) {
2196 static const char * const tap_params
[] = {
2197 "vlan", "name", "ifname", NULL
2201 if (check_params(buf
, sizeof(buf
), tap_params
, p
) < 0) {
2202 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2206 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2207 config_error(mon
, "tap: no interface name\n");
2211 vlan
->nb_host_devs
++;
2212 ret
= tap_win32_init(vlan
, device
, name
, ifname
);
2214 #elif defined (_AIX)
2216 if (!strcmp(device
, "tap")) {
2217 char ifname
[64], chkbuf
[64];
2218 char setup_script
[1024], down_script
[1024];
2220 vlan
->nb_host_devs
++;
2221 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2222 if (check_params(chkbuf
, sizeof(chkbuf
), fd_params
, p
) < 0) {
2223 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2227 fd
= strtol(buf
, NULL
, 0);
2228 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
2229 net_tap_fd_init(vlan
, device
, name
, fd
);
2232 static const char * const tap_params
[] = {
2233 "vlan", "name", "ifname", "script", "downscript", NULL
2235 if (check_params(chkbuf
, sizeof(chkbuf
), tap_params
, p
) < 0) {
2236 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2240 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2243 if (get_param_value(setup_script
, sizeof(setup_script
), "script", p
) == 0) {
2244 pstrcpy(setup_script
, sizeof(setup_script
), DEFAULT_NETWORK_SCRIPT
);
2246 if (get_param_value(down_script
, sizeof(down_script
), "downscript", p
) == 0) {
2247 pstrcpy(down_script
, sizeof(down_script
), DEFAULT_NETWORK_DOWN_SCRIPT
);
2249 ret
= net_tap_init(vlan
, device
, name
, ifname
, setup_script
, down_script
);
2253 if (!strcmp(device
, "socket")) {
2255 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2257 if (check_params(chkbuf
, sizeof(chkbuf
), fd_params
, p
) < 0) {
2258 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2262 fd
= strtol(buf
, NULL
, 0);
2264 if (net_socket_fd_init(vlan
, device
, name
, fd
, 1))
2266 } else if (get_param_value(buf
, sizeof(buf
), "listen", p
) > 0) {
2267 static const char * const listen_params
[] = {
2268 "vlan", "name", "listen", NULL
2270 if (check_params(chkbuf
, sizeof(chkbuf
), listen_params
, p
) < 0) {
2271 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2275 ret
= net_socket_listen_init(vlan
, device
, name
, buf
);
2276 } else if (get_param_value(buf
, sizeof(buf
), "connect", p
) > 0) {
2277 static const char * const connect_params
[] = {
2278 "vlan", "name", "connect", NULL
2280 if (check_params(chkbuf
, sizeof(chkbuf
), connect_params
, p
) < 0) {
2281 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2285 ret
= net_socket_connect_init(vlan
, device
, name
, buf
);
2286 } else if (get_param_value(buf
, sizeof(buf
), "mcast", p
) > 0) {
2287 static const char * const mcast_params
[] = {
2288 "vlan", "name", "mcast", NULL
2290 if (check_params(chkbuf
, sizeof(chkbuf
), mcast_params
, p
) < 0) {
2291 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2295 ret
= net_socket_mcast_init(vlan
, device
, name
, buf
);
2297 config_error(mon
, "Unknown socket options: %s\n", p
);
2301 vlan
->nb_host_devs
++;
2304 if (!strcmp(device
, "vde")) {
2305 static const char * const vde_params
[] = {
2306 "vlan", "name", "sock", "port", "group", "mode", NULL
2308 char vde_sock
[1024], vde_group
[512];
2309 int vde_port
, vde_mode
;
2311 if (check_params(buf
, sizeof(buf
), vde_params
, p
) < 0) {
2312 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2316 vlan
->nb_host_devs
++;
2317 if (get_param_value(vde_sock
, sizeof(vde_sock
), "sock", p
) <= 0) {
2320 if (get_param_value(buf
, sizeof(buf
), "port", p
) > 0) {
2321 vde_port
= strtol(buf
, NULL
, 10);
2325 if (get_param_value(vde_group
, sizeof(vde_group
), "group", p
) <= 0) {
2326 vde_group
[0] = '\0';
2328 if (get_param_value(buf
, sizeof(buf
), "mode", p
) > 0) {
2329 vde_mode
= strtol(buf
, NULL
, 8);
2333 ret
= net_vde_init(vlan
, device
, name
, vde_sock
, vde_port
, vde_group
, vde_mode
);
2336 if (!strcmp(device
, "dump")) {
2339 if (get_param_value(buf
, sizeof(buf
), "len", p
) > 0) {
2340 len
= strtol(buf
, NULL
, 0);
2342 if (!get_param_value(buf
, sizeof(buf
), "file", p
)) {
2343 snprintf(buf
, sizeof(buf
), "qemu-vlan%d.pcap", vlan_id
);
2345 ret
= net_dump_init(mon
, vlan
, device
, name
, buf
, len
);
2347 config_error(mon
, "Unknown network device: %s\n", device
);
2352 config_error(mon
, "Could not initialize device '%s'\n", device
);
2359 void net_client_uninit(NICInfo
*nd
)
2361 nd
->vlan
->nb_guest_devs
--;
2364 free((void *)nd
->model
);
2367 static int net_host_check_device(const char *device
)
2370 const char *valid_param_list
[] = { "tap", "socket", "dump"
2378 for (i
= 0; i
< sizeof(valid_param_list
) / sizeof(char *); i
++) {
2379 if (!strncmp(valid_param_list
[i
], device
,
2380 strlen(valid_param_list
[i
])))
2387 void net_host_device_add(Monitor
*mon
, const char *device
, const char *opts
)
2389 if (!net_host_check_device(device
)) {
2390 monitor_printf(mon
, "invalid host network device %s\n", device
);
2393 if (net_client_init(mon
, device
, opts
? opts
: "") < 0) {
2394 monitor_printf(mon
, "adding host network device %s failed\n", device
);
2398 void net_host_device_remove(Monitor
*mon
, int vlan_id
, const char *device
)
2401 VLANClientState
*vc
;
2403 vlan
= qemu_find_vlan(vlan_id
);
2405 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
2406 if (!strcmp(vc
->name
, device
)) {
2412 monitor_printf(mon
, "can't find device %s\n", device
);
2415 if (!net_host_check_device(vc
->model
)) {
2416 monitor_printf(mon
, "invalid host network device %s\n", device
);
2419 qemu_del_vlan_client(vc
);
2422 int net_client_parse(const char *str
)
2430 while (*p
!= '\0' && *p
!= ',') {
2431 if ((q
- device
) < sizeof(device
) - 1)
2439 return net_client_init(NULL
, device
, p
);
2442 void do_info_network(Monitor
*mon
)
2445 VLANClientState
*vc
;
2447 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2448 monitor_printf(mon
, "VLAN %d devices:\n", vlan
->id
);
2449 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2450 monitor_printf(mon
, " %s: %s\n", vc
->name
, vc
->info_str
);
2454 int do_set_link(Monitor
*mon
, const char *name
, const char *up_or_down
)
2457 VLANClientState
*vc
= NULL
;
2459 for (vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
)
2460 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2461 if (strcmp(vc
->name
, name
) == 0)
2466 monitor_printf(mon
, "could not find network device '%s'", name
);
2470 if (strcmp(up_or_down
, "up") == 0)
2472 else if (strcmp(up_or_down
, "down") == 0)
2475 monitor_printf(mon
, "invalid link status '%s'; only 'up' or 'down' "
2476 "valid\n", up_or_down
);
2478 if (vc
->link_status_changed
)
2479 vc
->link_status_changed(vc
);
2484 void net_cleanup(void)
2488 /* close network clients */
2489 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2490 VLANClientState
*vc
= vlan
->first_client
;
2493 VLANClientState
*next
= vc
->next
;
2495 qemu_del_vlan_client(vc
);
2502 void net_client_check(void)
2506 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2507 if (vlan
->nb_guest_devs
== 0 && vlan
->nb_host_devs
== 0)
2509 if (vlan
->nb_guest_devs
== 0)
2510 fprintf(stderr
, "Warning: vlan %d with no nics\n", vlan
->id
);
2511 if (vlan
->nb_host_devs
== 0)
2513 "Warning: vlan %d is not connected to host network\n",