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 CONFIG_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 "tap-linux.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>
104 #include "qemu-common.h"
108 #include "qemu-timer.h"
109 #include "qemu-char.h"
110 #include "audio/audio.h"
111 #include "qemu_socket.h"
112 #include "qemu-log.h"
113 #include "qemu-config.h"
115 #include "slirp/libslirp.h"
117 static QTAILQ_HEAD(, VLANState
) vlans
;
118 static QTAILQ_HEAD(, VLANClientState
) non_vlan_clients
;
120 /***********************************************************/
121 /* network device redirectors */
123 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
124 static void hex_dump(FILE *f
, const uint8_t *buf
, int size
)
128 for(i
=0;i
<size
;i
+=16) {
132 fprintf(f
, "%08x ", i
);
135 fprintf(f
, " %02x", buf
[i
+j
]);
142 if (c
< ' ' || c
> '~')
151 static int parse_macaddr(uint8_t *macaddr
, const char *p
)
158 offset
= strtol(p
, &last_char
, 0);
159 if (0 == errno
&& '\0' == *last_char
&&
160 offset
>= 0 && offset
<= 0xFFFFFF) {
161 macaddr
[3] = (offset
& 0xFF0000) >> 16;
162 macaddr
[4] = (offset
& 0xFF00) >> 8;
163 macaddr
[5] = offset
& 0xFF;
166 for(i
= 0; i
< 6; i
++) {
167 macaddr
[i
] = strtol(p
, (char **)&p
, 16);
172 if (*p
!= ':' && *p
!= '-')
183 static int get_str_sep(char *buf
, int buf_size
, const char **pp
, int sep
)
194 if (len
> buf_size
- 1)
203 int parse_host_src_port(struct sockaddr_in
*haddr
,
204 struct sockaddr_in
*saddr
,
205 const char *input_str
)
207 char *str
= strdup(input_str
);
208 char *host_str
= str
;
210 const char *src_str2
;
214 * Chop off any extra arguments at the end of the string which
215 * would start with a comma, then fill in the src port information
216 * if it was provided else use the "any address" and "any port".
218 if ((ptr
= strchr(str
,',')))
221 if ((src_str
= strchr(input_str
,'@'))) {
226 if (parse_host_port(haddr
, host_str
) < 0)
230 if (!src_str
|| *src_str
== '\0')
233 if (parse_host_port(saddr
, src_str2
) < 0)
244 int parse_host_port(struct sockaddr_in
*saddr
, const char *str
)
252 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
254 saddr
->sin_family
= AF_INET
;
255 if (buf
[0] == '\0') {
256 saddr
->sin_addr
.s_addr
= 0;
258 if (qemu_isdigit(buf
[0])) {
259 if (!inet_aton(buf
, &saddr
->sin_addr
))
262 if ((he
= gethostbyname(buf
)) == NULL
)
264 saddr
->sin_addr
= *(struct in_addr
*)he
->h_addr
;
267 port
= strtol(p
, (char **)&r
, 0);
270 saddr
->sin_port
= htons(port
);
274 void qemu_format_nic_info_str(VLANClientState
*vc
, uint8_t macaddr
[6])
276 snprintf(vc
->info_str
, sizeof(vc
->info_str
),
277 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
279 macaddr
[0], macaddr
[1], macaddr
[2],
280 macaddr
[3], macaddr
[4], macaddr
[5]);
283 void qemu_macaddr_default_if_unset(MACAddr
*macaddr
)
285 static int index
= 0;
286 static const MACAddr zero
= { .a
= { 0,0,0,0,0,0 } };
288 if (memcmp(macaddr
, &zero
, sizeof(zero
)) != 0)
290 macaddr
->a
[0] = 0x52;
291 macaddr
->a
[1] = 0x54;
292 macaddr
->a
[2] = 0x00;
293 macaddr
->a
[3] = 0x12;
294 macaddr
->a
[4] = 0x34;
295 macaddr
->a
[5] = 0x56 + index
++;
298 static char *assign_name(VLANClientState
*vc1
, const char *model
)
304 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
307 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
308 if (vc
!= vc1
&& strcmp(vc
->model
, model
) == 0) {
314 snprintf(buf
, sizeof(buf
), "%s.%d", model
, id
);
316 return qemu_strdup(buf
);
319 static ssize_t
qemu_deliver_packet(VLANClientState
*sender
,
324 static ssize_t
qemu_deliver_packet_iov(VLANClientState
*sender
,
326 const struct iovec
*iov
,
330 VLANClientState
*qemu_new_vlan_client(net_client_type type
,
332 VLANClientState
*peer
,
335 NetCanReceive
*can_receive
,
337 NetReceiveIOV
*receive_iov
,
343 vc
= qemu_mallocz(sizeof(VLANClientState
));
346 vc
->model
= qemu_strdup(model
);
348 vc
->name
= qemu_strdup(name
);
350 vc
->name
= assign_name(vc
, model
);
351 vc
->can_receive
= can_receive
;
352 vc
->receive
= receive
;
353 vc
->receive_iov
= receive_iov
;
354 vc
->cleanup
= cleanup
;
360 QTAILQ_INSERT_TAIL(&vc
->vlan
->clients
, vc
, next
);
366 QTAILQ_INSERT_TAIL(&non_vlan_clients
, vc
, next
);
368 vc
->send_queue
= qemu_new_net_queue(qemu_deliver_packet
,
369 qemu_deliver_packet_iov
,
376 void qemu_del_vlan_client(VLANClientState
*vc
)
379 QTAILQ_REMOVE(&vc
->vlan
->clients
, vc
, next
);
381 if (vc
->send_queue
) {
382 qemu_del_net_queue(vc
->send_queue
);
384 QTAILQ_REMOVE(&non_vlan_clients
, vc
, next
);
386 vc
->peer
->peer
= NULL
;
395 qemu_free(vc
->model
);
399 VLANClientState
*qemu_find_vlan_client(VLANState
*vlan
, void *opaque
)
403 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
404 if (vc
->opaque
== opaque
) {
412 static VLANClientState
*
413 qemu_find_vlan_client_by_name(Monitor
*mon
, int vlan_id
,
414 const char *client_str
)
419 vlan
= qemu_find_vlan(vlan_id
, 0);
421 monitor_printf(mon
, "unknown VLAN %d\n", vlan_id
);
425 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
426 if (!strcmp(vc
->name
, client_str
)) {
431 monitor_printf(mon
, "can't find device %s on VLAN %d\n",
432 client_str
, vlan_id
);
438 int qemu_can_send_packet(VLANClientState
*sender
)
440 VLANState
*vlan
= sender
->vlan
;
444 if (!sender
->peer
->can_receive
||
445 sender
->peer
->can_receive(sender
->peer
)) {
456 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
461 /* no can_receive() handler, they can always receive */
462 if (!vc
->can_receive
|| vc
->can_receive(vc
)) {
469 static ssize_t
qemu_deliver_packet(VLANClientState
*sender
,
475 VLANClientState
*vc
= opaque
;
481 return vc
->receive(vc
, data
, size
);
484 static ssize_t
qemu_vlan_deliver_packet(VLANClientState
*sender
,
490 VLANState
*vlan
= opaque
;
494 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
506 len
= vc
->receive(vc
, buf
, size
);
508 ret
= (ret
>= 0) ? ret
: len
;
514 void qemu_purge_queued_packets(VLANClientState
*vc
)
518 if (!vc
->peer
&& !vc
->vlan
) {
523 queue
= vc
->peer
->send_queue
;
525 queue
= vc
->vlan
->send_queue
;
528 qemu_net_queue_purge(queue
, vc
);
531 void qemu_flush_queued_packets(VLANClientState
*vc
)
536 queue
= vc
->vlan
->send_queue
;
538 queue
= vc
->send_queue
;
541 qemu_net_queue_flush(queue
);
544 ssize_t
qemu_send_packet_async(VLANClientState
*sender
,
545 const uint8_t *buf
, int size
,
546 NetPacketSent
*sent_cb
)
551 printf("qemu_send_packet_async:\n");
552 hex_dump(stdout
, buf
, size
);
555 if (sender
->link_down
|| (!sender
->peer
&& !sender
->vlan
)) {
560 queue
= sender
->peer
->send_queue
;
562 queue
= sender
->vlan
->send_queue
;
565 return qemu_net_queue_send(queue
, sender
,
566 QEMU_NET_PACKET_FLAG_NONE
,
570 void qemu_send_packet(VLANClientState
*vc
, const uint8_t *buf
, int size
)
572 qemu_send_packet_async(vc
, buf
, size
, NULL
);
575 static ssize_t
vc_sendv_compat(VLANClientState
*vc
, const struct iovec
*iov
,
578 uint8_t buffer
[4096];
582 for (i
= 0; i
< iovcnt
; i
++) {
585 len
= MIN(sizeof(buffer
) - offset
, iov
[i
].iov_len
);
586 memcpy(buffer
+ offset
, iov
[i
].iov_base
, len
);
590 return vc
->receive(vc
, buffer
, offset
);
593 static ssize_t
calc_iov_length(const struct iovec
*iov
, int iovcnt
)
598 for (i
= 0; i
< iovcnt
; i
++)
599 offset
+= iov
[i
].iov_len
;
603 static ssize_t
qemu_deliver_packet_iov(VLANClientState
*sender
,
605 const struct iovec
*iov
,
609 VLANClientState
*vc
= opaque
;
612 return calc_iov_length(iov
, iovcnt
);
615 if (vc
->receive_iov
) {
616 return vc
->receive_iov(vc
, iov
, iovcnt
);
618 return vc_sendv_compat(vc
, iov
, iovcnt
);
622 static ssize_t
qemu_vlan_deliver_packet_iov(VLANClientState
*sender
,
624 const struct iovec
*iov
,
628 VLANState
*vlan
= opaque
;
632 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
640 ret
= calc_iov_length(iov
, iovcnt
);
644 if (vc
->receive_iov
) {
645 len
= vc
->receive_iov(vc
, iov
, iovcnt
);
647 len
= vc_sendv_compat(vc
, iov
, iovcnt
);
650 ret
= (ret
>= 0) ? ret
: len
;
656 ssize_t
qemu_sendv_packet_async(VLANClientState
*sender
,
657 const struct iovec
*iov
, int iovcnt
,
658 NetPacketSent
*sent_cb
)
662 if (sender
->link_down
|| (!sender
->peer
&& !sender
->vlan
)) {
663 return calc_iov_length(iov
, iovcnt
);
667 queue
= sender
->peer
->send_queue
;
669 queue
= sender
->vlan
->send_queue
;
672 return qemu_net_queue_send_iov(queue
, sender
,
673 QEMU_NET_PACKET_FLAG_NONE
,
674 iov
, iovcnt
, sent_cb
);
678 qemu_sendv_packet(VLANClientState
*vc
, const struct iovec
*iov
, int iovcnt
)
680 return qemu_sendv_packet_async(vc
, iov
, iovcnt
, NULL
);
683 #if defined(CONFIG_SLIRP)
685 /* slirp network adapter */
687 #define SLIRP_CFG_HOSTFWD 1
688 #define SLIRP_CFG_LEGACY 2
690 struct slirp_config_str
{
691 struct slirp_config_str
*next
;
697 typedef struct SlirpState
{
698 QTAILQ_ENTRY(SlirpState
) entry
;
706 static struct slirp_config_str
*slirp_configs
;
707 const char *legacy_tftp_prefix
;
708 const char *legacy_bootp_filename
;
709 static QTAILQ_HEAD(slirp_stacks
, SlirpState
) slirp_stacks
=
710 QTAILQ_HEAD_INITIALIZER(slirp_stacks
);
712 static int slirp_hostfwd(SlirpState
*s
, const char *redir_str
,
714 static int slirp_guestfwd(SlirpState
*s
, const char *config_str
,
718 static const char *legacy_smb_export
;
720 static int slirp_smb(SlirpState
*s
, const char *exported_dir
,
721 struct in_addr vserver_addr
);
722 static void slirp_smb_cleanup(SlirpState
*s
);
724 static inline void slirp_smb_cleanup(SlirpState
*s
) { }
727 int slirp_can_output(void *opaque
)
729 SlirpState
*s
= opaque
;
731 return qemu_can_send_packet(s
->vc
);
734 void slirp_output(void *opaque
, const uint8_t *pkt
, int pkt_len
)
736 SlirpState
*s
= opaque
;
739 printf("slirp output:\n");
740 hex_dump(stdout
, pkt
, pkt_len
);
742 qemu_send_packet(s
->vc
, pkt
, pkt_len
);
745 static ssize_t
slirp_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
747 SlirpState
*s
= vc
->opaque
;
750 printf("slirp input:\n");
751 hex_dump(stdout
, buf
, size
);
753 slirp_input(s
->slirp
, buf
, size
);
757 static void net_slirp_cleanup(VLANClientState
*vc
)
759 SlirpState
*s
= vc
->opaque
;
761 slirp_cleanup(s
->slirp
);
762 slirp_smb_cleanup(s
);
763 QTAILQ_REMOVE(&slirp_stacks
, s
, entry
);
767 static int net_slirp_init(VLANState
*vlan
, const char *model
,
768 const char *name
, int restricted
,
769 const char *vnetwork
, const char *vhost
,
770 const char *vhostname
, const char *tftp_export
,
771 const char *bootfile
, const char *vdhcp_start
,
772 const char *vnameserver
, const char *smb_export
,
773 const char *vsmbserver
)
775 /* default settings according to historic slirp */
776 struct in_addr net
= { .s_addr
= htonl(0x0a000200) }; /* 10.0.2.0 */
777 struct in_addr mask
= { .s_addr
= htonl(0xffffff00) }; /* 255.255.255.0 */
778 struct in_addr host
= { .s_addr
= htonl(0x0a000202) }; /* 10.0.2.2 */
779 struct in_addr dhcp
= { .s_addr
= htonl(0x0a00020f) }; /* 10.0.2.15 */
780 struct in_addr dns
= { .s_addr
= htonl(0x0a000203) }; /* 10.0.2.3 */
782 struct in_addr smbsrv
= { .s_addr
= 0 };
789 struct slirp_config_str
*config
;
792 tftp_export
= legacy_tftp_prefix
;
795 bootfile
= legacy_bootp_filename
;
799 if (get_str_sep(buf
, sizeof(buf
), &vnetwork
, '/') < 0) {
800 if (!inet_aton(vnetwork
, &net
)) {
803 addr
= ntohl(net
.s_addr
);
804 if (!(addr
& 0x80000000)) {
805 mask
.s_addr
= htonl(0xff000000); /* class A */
806 } else if ((addr
& 0xfff00000) == 0xac100000) {
807 mask
.s_addr
= htonl(0xfff00000); /* priv. 172.16.0.0/12 */
808 } else if ((addr
& 0xc0000000) == 0x80000000) {
809 mask
.s_addr
= htonl(0xffff0000); /* class B */
810 } else if ((addr
& 0xffff0000) == 0xc0a80000) {
811 mask
.s_addr
= htonl(0xffff0000); /* priv. 192.168.0.0/16 */
812 } else if ((addr
& 0xffff0000) == 0xc6120000) {
813 mask
.s_addr
= htonl(0xfffe0000); /* tests 198.18.0.0/15 */
814 } else if ((addr
& 0xe0000000) == 0xe0000000) {
815 mask
.s_addr
= htonl(0xffffff00); /* class C */
817 mask
.s_addr
= htonl(0xfffffff0); /* multicast/reserved */
820 if (!inet_aton(buf
, &net
)) {
823 shift
= strtol(vnetwork
, &end
, 10);
825 if (!inet_aton(vnetwork
, &mask
)) {
828 } else if (shift
< 4 || shift
> 32) {
831 mask
.s_addr
= htonl(0xffffffff << (32 - shift
));
834 net
.s_addr
&= mask
.s_addr
;
835 host
.s_addr
= net
.s_addr
| (htonl(0x0202) & ~mask
.s_addr
);
836 dhcp
.s_addr
= net
.s_addr
| (htonl(0x020f) & ~mask
.s_addr
);
837 dns
.s_addr
= net
.s_addr
| (htonl(0x0203) & ~mask
.s_addr
);
840 if (vhost
&& !inet_aton(vhost
, &host
)) {
843 if ((host
.s_addr
& mask
.s_addr
) != net
.s_addr
) {
847 if (vdhcp_start
&& !inet_aton(vdhcp_start
, &dhcp
)) {
850 if ((dhcp
.s_addr
& mask
.s_addr
) != net
.s_addr
||
851 dhcp
.s_addr
== host
.s_addr
|| dhcp
.s_addr
== dns
.s_addr
) {
855 if (vnameserver
&& !inet_aton(vnameserver
, &dns
)) {
858 if ((dns
.s_addr
& mask
.s_addr
) != net
.s_addr
||
859 dns
.s_addr
== host
.s_addr
) {
864 if (vsmbserver
&& !inet_aton(vsmbserver
, &smbsrv
)) {
869 s
= qemu_mallocz(sizeof(SlirpState
));
870 s
->slirp
= slirp_init(restricted
, net
, mask
, host
, vhostname
,
871 tftp_export
, bootfile
, dhcp
, dns
, s
);
872 QTAILQ_INSERT_TAIL(&slirp_stacks
, s
, entry
);
874 for (config
= slirp_configs
; config
; config
= config
->next
) {
875 if (config
->flags
& SLIRP_CFG_HOSTFWD
) {
876 if (slirp_hostfwd(s
, config
->str
,
877 config
->flags
& SLIRP_CFG_LEGACY
) < 0)
880 if (slirp_guestfwd(s
, config
->str
,
881 config
->flags
& SLIRP_CFG_LEGACY
) < 0)
887 smb_export
= legacy_smb_export
;
890 if (slirp_smb(s
, smb_export
, smbsrv
) < 0)
895 s
->vc
= qemu_new_vlan_client(NET_CLIENT_TYPE_SLIRP
,
896 vlan
, NULL
, model
, name
, NULL
,
898 net_slirp_cleanup
, s
);
899 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
900 "net=%s, restricted=%c", inet_ntoa(net
), restricted
? 'y' : 'n');
904 static SlirpState
*slirp_lookup(Monitor
*mon
, const char *vlan
,
910 vc
= qemu_find_vlan_client_by_name(mon
, strtol(vlan
, NULL
, 0), stack
);
914 if (strcmp(vc
->model
, "user")) {
915 monitor_printf(mon
, "invalid device specified\n");
920 if (QTAILQ_EMPTY(&slirp_stacks
)) {
921 monitor_printf(mon
, "user mode network stack not in use\n");
924 return QTAILQ_FIRST(&slirp_stacks
);
928 void net_slirp_hostfwd_remove(Monitor
*mon
, const QDict
*qdict
)
930 struct in_addr host_addr
= { .s_addr
= INADDR_ANY
};
933 const char *src_str
, *p
;
937 const char *arg1
= qdict_get_str(qdict
, "arg1");
938 const char *arg2
= qdict_get_try_str(qdict
, "arg2");
939 const char *arg3
= qdict_get_try_str(qdict
, "arg3");
942 s
= slirp_lookup(mon
, arg1
, arg2
);
945 s
= slirp_lookup(mon
, NULL
, NULL
);
952 if (!src_str
|| !src_str
[0])
956 get_str_sep(buf
, sizeof(buf
), &p
, ':');
958 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
960 } else if (!strcmp(buf
, "udp")) {
966 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
969 if (buf
[0] != '\0' && !inet_aton(buf
, &host_addr
)) {
975 err
= slirp_remove_hostfwd(QTAILQ_FIRST(&slirp_stacks
)->slirp
, is_udp
,
976 host_addr
, host_port
);
978 monitor_printf(mon
, "host forwarding rule for %s %s\n", src_str
,
979 err
? "removed" : "not found");
983 monitor_printf(mon
, "invalid format\n");
986 static int slirp_hostfwd(SlirpState
*s
, const char *redir_str
,
989 struct in_addr host_addr
= { .s_addr
= INADDR_ANY
};
990 struct in_addr guest_addr
= { .s_addr
= 0 };
991 int host_port
, guest_port
;
998 if (!p
|| get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1001 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
1003 } else if (!strcmp(buf
, "udp")) {
1009 if (!legacy_format
) {
1010 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1013 if (buf
[0] != '\0' && !inet_aton(buf
, &host_addr
)) {
1018 if (get_str_sep(buf
, sizeof(buf
), &p
, legacy_format
? ':' : '-') < 0) {
1021 host_port
= strtol(buf
, &end
, 0);
1022 if (*end
!= '\0' || host_port
< 1 || host_port
> 65535) {
1026 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1029 if (buf
[0] != '\0' && !inet_aton(buf
, &guest_addr
)) {
1033 guest_port
= strtol(p
, &end
, 0);
1034 if (*end
!= '\0' || guest_port
< 1 || guest_port
> 65535) {
1038 if (slirp_add_hostfwd(s
->slirp
, is_udp
, host_addr
, host_port
, guest_addr
,
1040 qemu_error("could not set up host forwarding rule '%s'\n",
1047 qemu_error("invalid host forwarding rule '%s'\n", redir_str
);
1051 void net_slirp_hostfwd_add(Monitor
*mon
, const QDict
*qdict
)
1053 const char *redir_str
;
1055 const char *arg1
= qdict_get_str(qdict
, "arg1");
1056 const char *arg2
= qdict_get_try_str(qdict
, "arg2");
1057 const char *arg3
= qdict_get_try_str(qdict
, "arg3");
1060 s
= slirp_lookup(mon
, arg1
, arg2
);
1063 s
= slirp_lookup(mon
, NULL
, NULL
);
1067 slirp_hostfwd(s
, redir_str
, 0);
1072 int net_slirp_redir(const char *redir_str
)
1074 struct slirp_config_str
*config
;
1076 if (QTAILQ_EMPTY(&slirp_stacks
)) {
1077 config
= qemu_malloc(sizeof(*config
));
1078 pstrcpy(config
->str
, sizeof(config
->str
), redir_str
);
1079 config
->flags
= SLIRP_CFG_HOSTFWD
| SLIRP_CFG_LEGACY
;
1080 config
->next
= slirp_configs
;
1081 slirp_configs
= config
;
1085 return slirp_hostfwd(QTAILQ_FIRST(&slirp_stacks
), redir_str
, 1);
1090 /* automatic user mode samba server configuration */
1091 static void slirp_smb_cleanup(SlirpState
*s
)
1095 if (s
->smb_dir
[0] != '\0') {
1096 snprintf(cmd
, sizeof(cmd
), "rm -rf %s", s
->smb_dir
);
1098 s
->smb_dir
[0] = '\0';
1102 static int slirp_smb(SlirpState
* s
, const char *exported_dir
,
1103 struct in_addr vserver_addr
)
1105 static int instance
;
1107 char smb_cmdline
[128];
1110 snprintf(s
->smb_dir
, sizeof(s
->smb_dir
), "/tmp/qemu-smb.%ld-%d",
1111 (long)getpid(), instance
++);
1112 if (mkdir(s
->smb_dir
, 0700) < 0) {
1113 qemu_error("could not create samba server dir '%s'\n", s
->smb_dir
);
1116 snprintf(smb_conf
, sizeof(smb_conf
), "%s/%s", s
->smb_dir
, "smb.conf");
1118 f
= fopen(smb_conf
, "w");
1120 slirp_smb_cleanup(s
);
1121 qemu_error("could not create samba server configuration file '%s'\n",
1129 "socket address=127.0.0.1\n"
1130 "pid directory=%s\n"
1131 "lock directory=%s\n"
1132 "log file=%s/log.smbd\n"
1133 "smb passwd file=%s/smbpasswd\n"
1134 "security = share\n"
1148 snprintf(smb_cmdline
, sizeof(smb_cmdline
), "%s -s %s",
1149 SMBD_COMMAND
, smb_conf
);
1151 if (slirp_add_exec(s
->slirp
, 0, smb_cmdline
, &vserver_addr
, 139) < 0) {
1152 slirp_smb_cleanup(s
);
1153 qemu_error("conflicting/invalid smbserver address\n");
1159 /* automatic user mode samba server configuration (legacy interface) */
1160 int net_slirp_smb(const char *exported_dir
)
1162 struct in_addr vserver_addr
= { .s_addr
= 0 };
1164 if (legacy_smb_export
) {
1165 fprintf(stderr
, "-smb given twice\n");
1168 legacy_smb_export
= exported_dir
;
1169 if (!QTAILQ_EMPTY(&slirp_stacks
)) {
1170 return slirp_smb(QTAILQ_FIRST(&slirp_stacks
), exported_dir
,
1176 #endif /* !defined(_WIN32) */
1179 CharDriverState
*hd
;
1180 struct in_addr server
;
1185 static int guestfwd_can_read(void *opaque
)
1187 struct GuestFwd
*fwd
= opaque
;
1188 return slirp_socket_can_recv(fwd
->slirp
, fwd
->server
, fwd
->port
);
1191 static void guestfwd_read(void *opaque
, const uint8_t *buf
, int size
)
1193 struct GuestFwd
*fwd
= opaque
;
1194 slirp_socket_recv(fwd
->slirp
, fwd
->server
, fwd
->port
, buf
, size
);
1197 static int slirp_guestfwd(SlirpState
*s
, const char *config_str
,
1200 struct in_addr server
= { .s_addr
= 0 };
1201 struct GuestFwd
*fwd
;
1208 if (legacy_format
) {
1209 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1213 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1216 if (strcmp(buf
, "tcp") && buf
[0] != '\0') {
1219 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1222 if (buf
[0] != '\0' && !inet_aton(buf
, &server
)) {
1225 if (get_str_sep(buf
, sizeof(buf
), &p
, '-') < 0) {
1229 port
= strtol(buf
, &end
, 10);
1230 if (*end
!= '\0' || port
< 1 || port
> 65535) {
1234 fwd
= qemu_malloc(sizeof(struct GuestFwd
));
1235 snprintf(buf
, sizeof(buf
), "guestfwd.tcp:%d", port
);
1236 fwd
->hd
= qemu_chr_open(buf
, p
, NULL
);
1238 qemu_error("could not open guest forwarding device '%s'\n", buf
);
1243 if (slirp_add_exec(s
->slirp
, 3, fwd
->hd
, &server
, port
) < 0) {
1244 qemu_error("conflicting/invalid host:port in guest forwarding "
1245 "rule '%s'\n", config_str
);
1249 fwd
->server
= server
;
1251 fwd
->slirp
= s
->slirp
;
1253 qemu_chr_add_handlers(fwd
->hd
, guestfwd_can_read
, guestfwd_read
,
1258 qemu_error("invalid guest forwarding rule '%s'\n", config_str
);
1262 void do_info_usernet(Monitor
*mon
)
1266 QTAILQ_FOREACH(s
, &slirp_stacks
, entry
) {
1267 monitor_printf(mon
, "VLAN %d (%s):\n", s
->vc
->vlan
->id
, s
->vc
->name
);
1268 slirp_connection_info(s
->slirp
, mon
);
1272 #endif /* CONFIG_SLIRP */
1275 int tap_has_vnet_hdr(VLANClientState
*vc
)
1279 void tap_using_vnet_hdr(VLANClientState
*vc
, int using_vnet_hdr
)
1282 #else /* !defined(_WIN32) */
1284 /* Maximum GSO packet size (64k) plus plenty of room for
1285 * the ethernet and virtio_net headers
1287 #define TAP_BUFSIZE (4096 + 65536)
1289 typedef struct TAPState
{
1290 VLANClientState
*vc
;
1292 char down_script
[1024];
1293 char down_script_arg
[128];
1294 uint8_t buf
[TAP_BUFSIZE
];
1295 unsigned int read_poll
: 1;
1296 unsigned int write_poll
: 1;
1297 unsigned int has_vnet_hdr
: 1;
1298 unsigned int using_vnet_hdr
: 1;
1301 static int launch_script(const char *setup_script
, const char *ifname
, int fd
);
1303 static int tap_can_send(void *opaque
);
1304 static void tap_send(void *opaque
);
1305 static void tap_writable(void *opaque
);
1307 static void tap_update_fd_handler(TAPState
*s
)
1309 qemu_set_fd_handler2(s
->fd
,
1310 s
->read_poll
? tap_can_send
: NULL
,
1311 s
->read_poll
? tap_send
: NULL
,
1312 s
->write_poll
? tap_writable
: NULL
,
1316 static void tap_read_poll(TAPState
*s
, int enable
)
1318 s
->read_poll
= !!enable
;
1319 tap_update_fd_handler(s
);
1322 static void tap_write_poll(TAPState
*s
, int enable
)
1324 s
->write_poll
= !!enable
;
1325 tap_update_fd_handler(s
);
1328 static void tap_writable(void *opaque
)
1330 TAPState
*s
= opaque
;
1332 tap_write_poll(s
, 0);
1334 qemu_flush_queued_packets(s
->vc
);
1337 static ssize_t
tap_write_packet(TAPState
*s
, const struct iovec
*iov
, int iovcnt
)
1342 len
= writev(s
->fd
, iov
, iovcnt
);
1343 } while (len
== -1 && errno
== EINTR
);
1345 if (len
== -1 && errno
== EAGAIN
) {
1346 tap_write_poll(s
, 1);
1353 static ssize_t
tap_receive_iov(VLANClientState
*vc
, const struct iovec
*iov
,
1356 TAPState
*s
= vc
->opaque
;
1357 const struct iovec
*iovp
= iov
;
1358 struct iovec iov_copy
[iovcnt
+ 1];
1359 struct virtio_net_hdr hdr
= { 0, };
1361 if (s
->has_vnet_hdr
&& !s
->using_vnet_hdr
) {
1362 iov_copy
[0].iov_base
= &hdr
;
1363 iov_copy
[0].iov_len
= sizeof(hdr
);
1364 memcpy(&iov_copy
[1], iov
, iovcnt
* sizeof(*iov
));
1369 return tap_write_packet(s
, iovp
, iovcnt
);
1372 static ssize_t
tap_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1374 TAPState
*s
= vc
->opaque
;
1375 struct iovec iov
[2];
1377 struct virtio_net_hdr hdr
= { 0, };
1379 if (s
->has_vnet_hdr
&& !s
->using_vnet_hdr
) {
1380 iov
[iovcnt
].iov_base
= &hdr
;
1381 iov
[iovcnt
].iov_len
= sizeof(hdr
);
1385 iov
[iovcnt
].iov_base
= (char *)buf
;
1386 iov
[iovcnt
].iov_len
= size
;
1389 return tap_write_packet(s
, iov
, iovcnt
);
1392 static int tap_can_send(void *opaque
)
1394 TAPState
*s
= opaque
;
1396 return qemu_can_send_packet(s
->vc
);
1400 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1405 sbuf
.maxlen
= maxlen
;
1406 sbuf
.buf
= (char *)buf
;
1408 return getmsg(tapfd
, NULL
, &sbuf
, &f
) >= 0 ? sbuf
.len
: -1;
1411 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1413 return read(tapfd
, buf
, maxlen
);
1417 static void tap_send_completed(VLANClientState
*vc
, ssize_t len
)
1419 TAPState
*s
= vc
->opaque
;
1420 tap_read_poll(s
, 1);
1423 static void tap_send(void *opaque
)
1425 TAPState
*s
= opaque
;
1429 uint8_t *buf
= s
->buf
;
1431 size
= tap_read_packet(s
->fd
, s
->buf
, sizeof(s
->buf
));
1436 if (s
->has_vnet_hdr
&& !s
->using_vnet_hdr
) {
1437 buf
+= sizeof(struct virtio_net_hdr
);
1438 size
-= sizeof(struct virtio_net_hdr
);
1441 size
= qemu_send_packet_async(s
->vc
, buf
, size
, tap_send_completed
);
1443 tap_read_poll(s
, 0);
1448 /* sndbuf should be set to a value lower than the tx queue
1449 * capacity of any destination network interface.
1450 * Ethernet NICs generally have txqueuelen=1000, so 1Mb is
1451 * a good default, given a 1500 byte MTU.
1453 #define TAP_DEFAULT_SNDBUF 1024*1024
1455 static int tap_set_sndbuf(TAPState
*s
, QemuOpts
*opts
)
1459 sndbuf
= qemu_opt_get_size(opts
, "sndbuf", TAP_DEFAULT_SNDBUF
);
1464 if (ioctl(s
->fd
, TUNSETSNDBUF
, &sndbuf
) == -1 && qemu_opt_get(opts
, "sndbuf")) {
1465 qemu_error("TUNSETSNDBUF ioctl failed: %s\n", strerror(errno
));
1471 int tap_has_vnet_hdr(VLANClientState
*vc
)
1473 TAPState
*s
= vc
->opaque
;
1475 assert(vc
->type
== NET_CLIENT_TYPE_TAP
);
1477 return s
->has_vnet_hdr
;
1480 void tap_using_vnet_hdr(VLANClientState
*vc
, int using_vnet_hdr
)
1482 TAPState
*s
= vc
->opaque
;
1484 using_vnet_hdr
= using_vnet_hdr
!= 0;
1486 assert(vc
->type
== NET_CLIENT_TYPE_TAP
);
1487 assert(s
->has_vnet_hdr
== using_vnet_hdr
);
1489 s
->using_vnet_hdr
= using_vnet_hdr
;
1492 static int tap_probe_vnet_hdr(int fd
)
1496 if (ioctl(fd
, TUNGETIFF
, &ifr
) != 0) {
1497 qemu_error("TUNGETIFF ioctl() failed: %s\n", strerror(errno
));
1501 return ifr
.ifr_flags
& IFF_VNET_HDR
;
1504 static void tap_cleanup(VLANClientState
*vc
)
1506 TAPState
*s
= vc
->opaque
;
1508 qemu_purge_queued_packets(vc
);
1510 if (s
->down_script
[0])
1511 launch_script(s
->down_script
, s
->down_script_arg
, s
->fd
);
1513 tap_read_poll(s
, 0);
1514 tap_write_poll(s
, 0);
1521 static TAPState
*net_tap_fd_init(VLANState
*vlan
,
1529 s
= qemu_mallocz(sizeof(TAPState
));
1531 s
->has_vnet_hdr
= vnet_hdr
!= 0;
1532 s
->using_vnet_hdr
= 0;
1533 s
->vc
= qemu_new_vlan_client(NET_CLIENT_TYPE_TAP
,
1534 vlan
, NULL
, model
, name
, NULL
,
1535 tap_receive
, tap_receive_iov
,
1537 tap_read_poll(s
, 1);
1541 #if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__)
1542 static int tap_open(char *ifname
, int ifname_size
,
1543 int *vnet_hdr
, int vnet_hdr_required
)
1549 TFR(fd
= open("/dev/tap", O_RDWR
));
1551 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
1556 dev
= devname(s
.st_rdev
, S_IFCHR
);
1557 pstrcpy(ifname
, ifname_size
, dev
);
1559 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1562 #elif defined(__sun__)
1563 #define TUNNEWPPA (('T'<<16) | 0x0001)
1565 * Allocate TAP device, returns opened fd.
1566 * Stores dev name in the first arg(must be large enough).
1568 static int tap_alloc(char *dev
, size_t dev_size
)
1570 int tap_fd
, if_fd
, ppa
= -1;
1571 static int ip_fd
= 0;
1574 static int arp_fd
= 0;
1575 int ip_muxid
, arp_muxid
;
1576 struct strioctl strioc_if
, strioc_ppa
;
1577 int link_type
= I_PLINK
;;
1579 char actual_name
[32] = "";
1581 memset(&ifr
, 0x0, sizeof(ifr
));
1585 while( *ptr
&& !qemu_isdigit((int)*ptr
) ) ptr
++;
1589 /* Check if IP device was opened */
1593 TFR(ip_fd
= open("/dev/udp", O_RDWR
, 0));
1595 syslog(LOG_ERR
, "Can't open /dev/ip (actually /dev/udp)");
1599 TFR(tap_fd
= open("/dev/tap", O_RDWR
, 0));
1601 syslog(LOG_ERR
, "Can't open /dev/tap");
1605 /* Assign a new PPA and get its unit number. */
1606 strioc_ppa
.ic_cmd
= TUNNEWPPA
;
1607 strioc_ppa
.ic_timout
= 0;
1608 strioc_ppa
.ic_len
= sizeof(ppa
);
1609 strioc_ppa
.ic_dp
= (char *)&ppa
;
1610 if ((ppa
= ioctl (tap_fd
, I_STR
, &strioc_ppa
)) < 0)
1611 syslog (LOG_ERR
, "Can't assign new interface");
1613 TFR(if_fd
= open("/dev/tap", O_RDWR
, 0));
1615 syslog(LOG_ERR
, "Can't open /dev/tap (2)");
1618 if(ioctl(if_fd
, I_PUSH
, "ip") < 0){
1619 syslog(LOG_ERR
, "Can't push IP module");
1623 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) < 0)
1624 syslog(LOG_ERR
, "Can't get flags\n");
1626 snprintf (actual_name
, 32, "tap%d", ppa
);
1627 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1630 /* Assign ppa according to the unit number returned by tun device */
1632 if (ioctl (if_fd
, SIOCSLIFNAME
, &ifr
) < 0)
1633 syslog (LOG_ERR
, "Can't set PPA %d", ppa
);
1634 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) <0)
1635 syslog (LOG_ERR
, "Can't get flags\n");
1636 /* Push arp module to if_fd */
1637 if (ioctl (if_fd
, I_PUSH
, "arp") < 0)
1638 syslog (LOG_ERR
, "Can't push ARP module (2)");
1640 /* Push arp module to ip_fd */
1641 if (ioctl (ip_fd
, I_POP
, NULL
) < 0)
1642 syslog (LOG_ERR
, "I_POP failed\n");
1643 if (ioctl (ip_fd
, I_PUSH
, "arp") < 0)
1644 syslog (LOG_ERR
, "Can't push ARP module (3)\n");
1646 TFR(arp_fd
= open ("/dev/tap", O_RDWR
, 0));
1648 syslog (LOG_ERR
, "Can't open %s\n", "/dev/tap");
1650 /* Set ifname to arp */
1651 strioc_if
.ic_cmd
= SIOCSLIFNAME
;
1652 strioc_if
.ic_timout
= 0;
1653 strioc_if
.ic_len
= sizeof(ifr
);
1654 strioc_if
.ic_dp
= (char *)&ifr
;
1655 if (ioctl(arp_fd
, I_STR
, &strioc_if
) < 0){
1656 syslog (LOG_ERR
, "Can't set ifname to arp\n");
1659 if((ip_muxid
= ioctl(ip_fd
, I_LINK
, if_fd
)) < 0){
1660 syslog(LOG_ERR
, "Can't link TAP device to IP");
1664 if ((arp_muxid
= ioctl (ip_fd
, link_type
, arp_fd
)) < 0)
1665 syslog (LOG_ERR
, "Can't link TAP device to ARP");
1669 memset(&ifr
, 0x0, sizeof(ifr
));
1670 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1671 ifr
.lifr_ip_muxid
= ip_muxid
;
1672 ifr
.lifr_arp_muxid
= arp_muxid
;
1674 if (ioctl (ip_fd
, SIOCSLIFMUXID
, &ifr
) < 0)
1676 ioctl (ip_fd
, I_PUNLINK
, arp_muxid
);
1677 ioctl (ip_fd
, I_PUNLINK
, ip_muxid
);
1678 syslog (LOG_ERR
, "Can't set multiplexor id");
1681 snprintf(dev
, dev_size
, "tap%d", ppa
);
1685 static int tap_open(char *ifname
, int ifname_size
,
1686 int *vnet_hdr
, int vnet_hdr_required
)
1690 if( (fd
= tap_alloc(dev
, sizeof(dev
))) < 0 ){
1691 fprintf(stderr
, "Cannot allocate TAP device\n");
1694 pstrcpy(ifname
, ifname_size
, dev
);
1695 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1698 #elif defined (_AIX)
1699 static int tap_open(char *ifname
, int ifname_size
,
1700 int *vnet_hdr
, int vnet_hdr_required
)
1702 fprintf (stderr
, "no tap on AIX\n");
1706 static int tap_open(char *ifname
, int ifname_size
,
1707 int *vnet_hdr
, int vnet_hdr_required
)
1712 TFR(fd
= open("/dev/net/tun", O_RDWR
));
1714 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1717 memset(&ifr
, 0, sizeof(ifr
));
1718 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
1721 unsigned int features
;
1723 if (ioctl(fd
, TUNGETFEATURES
, &features
) == 0 &&
1724 features
& IFF_VNET_HDR
) {
1726 ifr
.ifr_flags
|= IFF_VNET_HDR
;
1729 if (vnet_hdr_required
&& !*vnet_hdr
) {
1730 qemu_error("vnet_hdr=1 requested, but no kernel "
1731 "support for IFF_VNET_HDR available");
1737 if (ifname
[0] != '\0')
1738 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, ifname
);
1740 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tap%d");
1741 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
1743 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1747 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
1748 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1753 static int launch_script(const char *setup_script
, const char *ifname
, int fd
)
1755 sigset_t oldmask
, mask
;
1761 sigaddset(&mask
, SIGCHLD
);
1762 sigprocmask(SIG_BLOCK
, &mask
, &oldmask
);
1764 /* try to launch network script */
1767 int open_max
= sysconf(_SC_OPEN_MAX
), i
;
1769 for (i
= 0; i
< open_max
; i
++) {
1770 if (i
!= STDIN_FILENO
&&
1771 i
!= STDOUT_FILENO
&&
1772 i
!= STDERR_FILENO
&&
1778 *parg
++ = (char *)setup_script
;
1779 *parg
++ = (char *)ifname
;
1781 execv(setup_script
, args
);
1783 } else if (pid
> 0) {
1784 while (waitpid(pid
, &status
, 0) != pid
) {
1787 sigprocmask(SIG_SETMASK
, &oldmask
, NULL
);
1789 if (WIFEXITED(status
) && WEXITSTATUS(status
) == 0) {
1793 fprintf(stderr
, "%s: could not launch network script\n", setup_script
);
1797 static int net_tap_init(QemuOpts
*opts
, int *vnet_hdr
)
1799 int fd
, vnet_hdr_required
;
1800 char ifname
[128] = {0,};
1801 const char *setup_script
;
1803 if (qemu_opt_get(opts
, "ifname")) {
1804 pstrcpy(ifname
, sizeof(ifname
), qemu_opt_get(opts
, "ifname"));
1807 *vnet_hdr
= qemu_opt_get_bool(opts
, "vnet_hdr", 1);
1808 if (qemu_opt_get(opts
, "vnet_hdr")) {
1809 vnet_hdr_required
= *vnet_hdr
;
1811 vnet_hdr_required
= 0;
1814 TFR(fd
= tap_open(ifname
, sizeof(ifname
), vnet_hdr
, vnet_hdr_required
));
1819 setup_script
= qemu_opt_get(opts
, "script");
1821 setup_script
[0] != '\0' &&
1822 strcmp(setup_script
, "no") != 0 &&
1823 launch_script(setup_script
, ifname
, fd
)) {
1828 qemu_opt_set(opts
, "ifname", ifname
);
1833 #endif /* !_WIN32 */
1835 #if defined(CONFIG_VDE)
1836 typedef struct VDEState
{
1837 VLANClientState
*vc
;
1841 static void vde_to_qemu(void *opaque
)
1843 VDEState
*s
= opaque
;
1847 size
= vde_recv(s
->vde
, (char *)buf
, sizeof(buf
), 0);
1849 qemu_send_packet(s
->vc
, buf
, size
);
1853 static ssize_t
vde_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1855 VDEState
*s
= vc
->opaque
;
1859 ret
= vde_send(s
->vde
, (const char *)buf
, size
, 0);
1860 } while (ret
< 0 && errno
== EINTR
);
1865 static void vde_cleanup(VLANClientState
*vc
)
1867 VDEState
*s
= vc
->opaque
;
1868 qemu_set_fd_handler(vde_datafd(s
->vde
), NULL
, NULL
, NULL
);
1873 static int net_vde_init(VLANState
*vlan
, const char *model
,
1874 const char *name
, const char *sock
,
1875 int port
, const char *group
, int mode
)
1878 char *init_group
= (char *)group
;
1879 char *init_sock
= (char *)sock
;
1881 struct vde_open_args args
= {
1883 .group
= init_group
,
1887 s
= qemu_mallocz(sizeof(VDEState
));
1888 s
->vde
= vde_open(init_sock
, (char *)"QEMU", &args
);
1893 s
->vc
= qemu_new_vlan_client(NET_CLIENT_TYPE_VDE
,
1894 vlan
, NULL
, model
, name
, NULL
,
1897 qemu_set_fd_handler(vde_datafd(s
->vde
), vde_to_qemu
, NULL
, s
);
1898 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "sock=%s,fd=%d",
1899 sock
, vde_datafd(s
->vde
));
1904 /* network connection */
1905 typedef struct NetSocketState
{
1906 VLANClientState
*vc
;
1908 int state
; /* 0 = getting length, 1 = getting data */
1910 unsigned int packet_len
;
1912 struct sockaddr_in dgram_dst
; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1915 typedef struct NetSocketListenState
{
1920 } NetSocketListenState
;
1922 /* XXX: we consider we can send the whole packet without blocking */
1923 static ssize_t
net_socket_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1925 NetSocketState
*s
= vc
->opaque
;
1929 send_all(s
->fd
, (const uint8_t *)&len
, sizeof(len
));
1930 return send_all(s
->fd
, buf
, size
);
1933 static ssize_t
net_socket_receive_dgram(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1935 NetSocketState
*s
= vc
->opaque
;
1937 return sendto(s
->fd
, (const void *)buf
, size
, 0,
1938 (struct sockaddr
*)&s
->dgram_dst
, sizeof(s
->dgram_dst
));
1941 static void net_socket_send(void *opaque
)
1943 NetSocketState
*s
= opaque
;
1949 size
= recv(s
->fd
, (void *)buf1
, sizeof(buf1
), 0);
1951 err
= socket_error();
1952 if (err
!= EWOULDBLOCK
)
1954 } else if (size
== 0) {
1955 /* end of connection */
1957 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1963 /* reassemble a packet from the network */
1969 memcpy(s
->buf
+ s
->index
, buf
, l
);
1973 if (s
->index
== 4) {
1975 s
->packet_len
= ntohl(*(uint32_t *)s
->buf
);
1981 l
= s
->packet_len
- s
->index
;
1984 if (s
->index
+ l
<= sizeof(s
->buf
)) {
1985 memcpy(s
->buf
+ s
->index
, buf
, l
);
1987 fprintf(stderr
, "serious error: oversized packet received,"
1988 "connection terminated.\n");
1996 if (s
->index
>= s
->packet_len
) {
1997 qemu_send_packet(s
->vc
, s
->buf
, s
->packet_len
);
2006 static void net_socket_send_dgram(void *opaque
)
2008 NetSocketState
*s
= opaque
;
2011 size
= recv(s
->fd
, (void *)s
->buf
, sizeof(s
->buf
), 0);
2015 /* end of connection */
2016 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
2019 qemu_send_packet(s
->vc
, s
->buf
, size
);
2022 static int net_socket_mcast_create(struct sockaddr_in
*mcastaddr
)
2027 if (!IN_MULTICAST(ntohl(mcastaddr
->sin_addr
.s_addr
))) {
2028 fprintf(stderr
, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
2029 inet_ntoa(mcastaddr
->sin_addr
),
2030 (int)ntohl(mcastaddr
->sin_addr
.s_addr
));
2034 fd
= socket(PF_INET
, SOCK_DGRAM
, 0);
2036 perror("socket(PF_INET, SOCK_DGRAM)");
2041 ret
=setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
,
2042 (const char *)&val
, sizeof(val
));
2044 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
2048 ret
= bind(fd
, (struct sockaddr
*)mcastaddr
, sizeof(*mcastaddr
));
2054 /* Add host to multicast group */
2055 imr
.imr_multiaddr
= mcastaddr
->sin_addr
;
2056 imr
.imr_interface
.s_addr
= htonl(INADDR_ANY
);
2058 ret
= setsockopt(fd
, IPPROTO_IP
, IP_ADD_MEMBERSHIP
,
2059 (const char *)&imr
, sizeof(struct ip_mreq
));
2061 perror("setsockopt(IP_ADD_MEMBERSHIP)");
2065 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
2067 ret
=setsockopt(fd
, IPPROTO_IP
, IP_MULTICAST_LOOP
,
2068 (const char *)&val
, sizeof(val
));
2070 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
2074 socket_set_nonblock(fd
);
2082 static void net_socket_cleanup(VLANClientState
*vc
)
2084 NetSocketState
*s
= vc
->opaque
;
2085 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
2090 static NetSocketState
*net_socket_fd_init_dgram(VLANState
*vlan
,
2093 int fd
, int is_connected
)
2095 struct sockaddr_in saddr
;
2097 socklen_t saddr_len
;
2100 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
2101 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
2102 * by ONLY ONE process: we must "clone" this dgram socket --jjo
2106 if (getsockname(fd
, (struct sockaddr
*) &saddr
, &saddr_len
) == 0) {
2108 if (saddr
.sin_addr
.s_addr
==0) {
2109 fprintf(stderr
, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
2113 /* clone dgram socket */
2114 newfd
= net_socket_mcast_create(&saddr
);
2116 /* error already reported by net_socket_mcast_create() */
2120 /* clone newfd to fd, close newfd */
2125 fprintf(stderr
, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
2126 fd
, strerror(errno
));
2131 s
= qemu_mallocz(sizeof(NetSocketState
));
2134 s
->vc
= qemu_new_vlan_client(NET_CLIENT_TYPE_SOCKET
,
2135 vlan
, NULL
, model
, name
, NULL
,
2136 net_socket_receive_dgram
, NULL
,
2137 net_socket_cleanup
, s
);
2138 qemu_set_fd_handler(s
->fd
, net_socket_send_dgram
, NULL
, s
);
2140 /* mcast: save bound address as dst */
2141 if (is_connected
) s
->dgram_dst
=saddr
;
2143 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2144 "socket: fd=%d (%s mcast=%s:%d)",
2145 fd
, is_connected
? "cloned" : "",
2146 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2150 static void net_socket_connect(void *opaque
)
2152 NetSocketState
*s
= opaque
;
2153 qemu_set_fd_handler(s
->fd
, net_socket_send
, NULL
, s
);
2156 static NetSocketState
*net_socket_fd_init_stream(VLANState
*vlan
,
2159 int fd
, int is_connected
)
2162 s
= qemu_mallocz(sizeof(NetSocketState
));
2164 s
->vc
= qemu_new_vlan_client(NET_CLIENT_TYPE_SOCKET
,
2165 vlan
, NULL
, model
, name
, NULL
,
2166 net_socket_receive
, NULL
,
2167 net_socket_cleanup
, s
);
2168 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2169 "socket: fd=%d", fd
);
2171 net_socket_connect(s
);
2173 qemu_set_fd_handler(s
->fd
, NULL
, net_socket_connect
, s
);
2178 static NetSocketState
*net_socket_fd_init(VLANState
*vlan
,
2179 const char *model
, const char *name
,
2180 int fd
, int is_connected
)
2182 int so_type
= -1, optlen
=sizeof(so_type
);
2184 if(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&so_type
,
2185 (socklen_t
*)&optlen
)< 0) {
2186 fprintf(stderr
, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd
);
2191 return net_socket_fd_init_dgram(vlan
, model
, name
, fd
, is_connected
);
2193 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
2195 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
2196 fprintf(stderr
, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type
, fd
);
2197 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
2202 static void net_socket_accept(void *opaque
)
2204 NetSocketListenState
*s
= opaque
;
2206 struct sockaddr_in saddr
;
2211 len
= sizeof(saddr
);
2212 fd
= accept(s
->fd
, (struct sockaddr
*)&saddr
, &len
);
2213 if (fd
< 0 && errno
!= EINTR
) {
2215 } else if (fd
>= 0) {
2219 s1
= net_socket_fd_init(s
->vlan
, s
->model
, s
->name
, fd
, 1);
2223 snprintf(s1
->vc
->info_str
, sizeof(s1
->vc
->info_str
),
2224 "socket: connection from %s:%d",
2225 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2229 static int net_socket_listen_init(VLANState
*vlan
,
2232 const char *host_str
)
2234 NetSocketListenState
*s
;
2236 struct sockaddr_in saddr
;
2238 if (parse_host_port(&saddr
, host_str
) < 0)
2241 s
= qemu_mallocz(sizeof(NetSocketListenState
));
2243 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
2248 socket_set_nonblock(fd
);
2250 /* allow fast reuse */
2252 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (const char *)&val
, sizeof(val
));
2254 ret
= bind(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
2259 ret
= listen(fd
, 0);
2265 s
->model
= qemu_strdup(model
);
2266 s
->name
= name
? qemu_strdup(name
) : NULL
;
2268 qemu_set_fd_handler(fd
, net_socket_accept
, NULL
, s
);
2272 static int net_socket_connect_init(VLANState
*vlan
,
2275 const char *host_str
)
2278 int fd
, connected
, ret
, err
;
2279 struct sockaddr_in saddr
;
2281 if (parse_host_port(&saddr
, host_str
) < 0)
2284 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
2289 socket_set_nonblock(fd
);
2293 ret
= connect(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
2295 err
= socket_error();
2296 if (err
== EINTR
|| err
== EWOULDBLOCK
) {
2297 } else if (err
== EINPROGRESS
) {
2300 } else if (err
== WSAEALREADY
) {
2313 s
= net_socket_fd_init(vlan
, model
, name
, fd
, connected
);
2316 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2317 "socket: connect to %s:%d",
2318 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2322 static int net_socket_mcast_init(VLANState
*vlan
,
2325 const char *host_str
)
2329 struct sockaddr_in saddr
;
2331 if (parse_host_port(&saddr
, host_str
) < 0)
2335 fd
= net_socket_mcast_create(&saddr
);
2339 s
= net_socket_fd_init(vlan
, model
, name
, fd
, 0);
2343 s
->dgram_dst
= saddr
;
2345 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2346 "socket: mcast=%s:%d",
2347 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2352 typedef struct DumpState
{
2353 VLANClientState
*pcap_vc
;
2358 #define PCAP_MAGIC 0xa1b2c3d4
2360 struct pcap_file_hdr
{
2362 uint16_t version_major
;
2363 uint16_t version_minor
;
2370 struct pcap_sf_pkthdr
{
2379 static ssize_t
dump_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
2381 DumpState
*s
= vc
->opaque
;
2382 struct pcap_sf_pkthdr hdr
;
2386 /* Early return in case of previous error. */
2391 ts
= muldiv64(qemu_get_clock(vm_clock
), 1000000, get_ticks_per_sec());
2392 caplen
= size
> s
->pcap_caplen
? s
->pcap_caplen
: size
;
2394 hdr
.ts
.tv_sec
= ts
/ 1000000;
2395 hdr
.ts
.tv_usec
= ts
% 1000000;
2396 hdr
.caplen
= caplen
;
2398 if (write(s
->fd
, &hdr
, sizeof(hdr
)) != sizeof(hdr
) ||
2399 write(s
->fd
, buf
, caplen
) != caplen
) {
2400 qemu_log("-net dump write error - stop dump\n");
2408 static void net_dump_cleanup(VLANClientState
*vc
)
2410 DumpState
*s
= vc
->opaque
;
2416 static int net_dump_init(VLANState
*vlan
, const char *device
,
2417 const char *name
, const char *filename
, int len
)
2419 struct pcap_file_hdr hdr
;
2422 s
= qemu_malloc(sizeof(DumpState
));
2424 s
->fd
= open(filename
, O_CREAT
| O_WRONLY
| O_BINARY
, 0644);
2426 qemu_error("-net dump: can't open %s\n", filename
);
2430 s
->pcap_caplen
= len
;
2432 hdr
.magic
= PCAP_MAGIC
;
2433 hdr
.version_major
= 2;
2434 hdr
.version_minor
= 4;
2437 hdr
.snaplen
= s
->pcap_caplen
;
2440 if (write(s
->fd
, &hdr
, sizeof(hdr
)) < sizeof(hdr
)) {
2441 qemu_error("-net dump write error: %s\n", strerror(errno
));
2447 s
->pcap_vc
= qemu_new_vlan_client(NET_CLIENT_TYPE_DUMP
,
2448 vlan
, NULL
, device
, name
, NULL
,
2450 net_dump_cleanup
, s
);
2451 snprintf(s
->pcap_vc
->info_str
, sizeof(s
->pcap_vc
->info_str
),
2452 "dump to %s (len=%d)", filename
, len
);
2456 /* find or alloc a new VLAN */
2457 VLANState
*qemu_find_vlan(int id
, int allocate
)
2461 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
2462 if (vlan
->id
== id
) {
2471 vlan
= qemu_mallocz(sizeof(VLANState
));
2473 QTAILQ_INIT(&vlan
->clients
);
2475 vlan
->send_queue
= qemu_new_net_queue(qemu_vlan_deliver_packet
,
2476 qemu_vlan_deliver_packet_iov
,
2479 QTAILQ_INSERT_TAIL(&vlans
, vlan
, next
);
2484 VLANClientState
*qemu_find_netdev(const char *id
)
2486 VLANClientState
*vc
;
2488 QTAILQ_FOREACH(vc
, &non_vlan_clients
, next
) {
2489 if (!strcmp(vc
->name
, id
)) {
2497 static int nic_get_free_idx(void)
2501 for (index
= 0; index
< MAX_NICS
; index
++)
2502 if (!nd_table
[index
].used
)
2507 int qemu_show_nic_models(const char *arg
, const char *const *models
)
2511 if (!arg
|| strcmp(arg
, "?"))
2514 fprintf(stderr
, "qemu: Supported NIC models: ");
2515 for (i
= 0 ; models
[i
]; i
++)
2516 fprintf(stderr
, "%s%c", models
[i
], models
[i
+1] ? ',' : '\n');
2520 void qemu_check_nic_model(NICInfo
*nd
, const char *model
)
2522 const char *models
[2];
2527 if (qemu_show_nic_models(nd
->model
, models
))
2529 if (qemu_find_nic_model(nd
, models
, model
) < 0)
2533 int qemu_find_nic_model(NICInfo
*nd
, const char * const *models
,
2534 const char *default_model
)
2539 nd
->model
= qemu_strdup(default_model
);
2541 for (i
= 0 ; models
[i
]; i
++) {
2542 if (strcmp(nd
->model
, models
[i
]) == 0)
2546 qemu_error("qemu: Unsupported NIC model: %s\n", nd
->model
);
2550 static int net_handle_fd_param(Monitor
*mon
, const char *param
)
2552 if (!qemu_isdigit(param
[0])) {
2555 fd
= monitor_get_fd(mon
, param
);
2557 qemu_error("No file descriptor named %s found", param
);
2563 return strtol(param
, NULL
, 0);
2567 static int net_init_nic(QemuOpts
*opts
,
2576 idx
= nic_get_free_idx();
2577 if (idx
== -1 || nb_nics
>= MAX_NICS
) {
2578 qemu_error("Too Many NICs\n");
2582 nd
= &nd_table
[idx
];
2584 memset(nd
, 0, sizeof(*nd
));
2586 if ((netdev
= qemu_opt_get(opts
, "netdev"))) {
2587 nd
->netdev
= qemu_find_netdev(netdev
);
2589 qemu_error("netdev '%s' not found\n", netdev
);
2597 nd
->name
= qemu_strdup(name
);
2599 if (qemu_opt_get(opts
, "model")) {
2600 nd
->model
= qemu_strdup(qemu_opt_get(opts
, "model"));
2602 if (qemu_opt_get(opts
, "addr")) {
2603 nd
->devaddr
= qemu_strdup(qemu_opt_get(opts
, "addr"));
2606 nd
->macaddr
[0] = 0x52;
2607 nd
->macaddr
[1] = 0x54;
2608 nd
->macaddr
[2] = 0x00;
2609 nd
->macaddr
[3] = 0x12;
2610 nd
->macaddr
[4] = 0x34;
2611 nd
->macaddr
[5] = 0x56 + idx
;
2613 if (qemu_opt_get(opts
, "macaddr") &&
2614 parse_macaddr(nd
->macaddr
, qemu_opt_get(opts
, "macaddr")) < 0) {
2615 qemu_error("invalid syntax for ethernet address\n");
2619 nd
->nvectors
= qemu_opt_get_number(opts
, "vectors", NIC_NVECTORS_UNSPECIFIED
);
2620 if (nd
->nvectors
!= NIC_NVECTORS_UNSPECIFIED
&&
2621 (nd
->nvectors
< 0 || nd
->nvectors
> 0x7ffffff)) {
2622 qemu_error("invalid # of vectors: %d\n", nd
->nvectors
);
2628 nd
->vlan
->nb_guest_devs
++;
2635 #if defined(CONFIG_SLIRP)
2636 static int net_init_slirp_configs(const char *name
, const char *value
, void *opaque
)
2638 struct slirp_config_str
*config
;
2640 if (strcmp(name
, "hostfwd") != 0 && strcmp(name
, "guestfwd") != 0) {
2644 config
= qemu_mallocz(sizeof(*config
));
2646 pstrcpy(config
->str
, sizeof(config
->str
), value
);
2648 if (!strcmp(name
, "hostfwd")) {
2649 config
->flags
= SLIRP_CFG_HOSTFWD
;
2652 config
->next
= slirp_configs
;
2653 slirp_configs
= config
;
2658 static int net_init_slirp(QemuOpts
*opts
,
2663 struct slirp_config_str
*config
;
2665 const char *vhostname
;
2666 const char *vdhcp_start
;
2667 const char *vnamesrv
;
2668 const char *tftp_export
;
2669 const char *bootfile
;
2670 const char *smb_export
;
2671 const char *vsmbsrv
;
2676 vhost
= qemu_opt_get(opts
, "host");
2677 vhostname
= qemu_opt_get(opts
, "hostname");
2678 vdhcp_start
= qemu_opt_get(opts
, "dhcpstart");
2679 vnamesrv
= qemu_opt_get(opts
, "dns");
2680 tftp_export
= qemu_opt_get(opts
, "tftp");
2681 bootfile
= qemu_opt_get(opts
, "bootfile");
2682 smb_export
= qemu_opt_get(opts
, "smb");
2683 vsmbsrv
= qemu_opt_get(opts
, "smbserver");
2685 if (qemu_opt_get(opts
, "ip")) {
2686 const char *ip
= qemu_opt_get(opts
, "ip");
2687 int l
= strlen(ip
) + strlen("/24") + 1;
2689 vnet
= qemu_malloc(l
);
2691 /* emulate legacy ip= parameter */
2692 pstrcpy(vnet
, l
, ip
);
2693 pstrcat(vnet
, l
, "/24");
2696 if (qemu_opt_get(opts
, "net")) {
2700 vnet
= qemu_strdup(qemu_opt_get(opts
, "net"));
2703 if (qemu_opt_get(opts
, "restrict") &&
2704 qemu_opt_get(opts
, "restrict")[0] == 'y') {
2708 qemu_opt_foreach(opts
, net_init_slirp_configs
, NULL
, 0);
2710 ret
= net_slirp_init(vlan
, "user", name
, restricted
, vnet
, vhost
,
2711 vhostname
, tftp_export
, bootfile
, vdhcp_start
,
2712 vnamesrv
, smb_export
, vsmbsrv
);
2714 while (slirp_configs
) {
2715 config
= slirp_configs
;
2716 slirp_configs
= config
->next
;
2720 if (ret
!= -1 && vlan
) {
2721 vlan
->nb_host_devs
++;
2728 #endif /* CONFIG_SLIRP */
2731 static int net_init_tap_win32(QemuOpts
*opts
,
2738 ifname
= qemu_opt_get(opts
, "ifname");
2741 qemu_error("tap: no interface name\n");
2745 if (tap_win32_init(vlan
, "tap", name
, ifname
) == -1) {
2750 vlan
->nb_host_devs
++;
2755 #elif !defined(_AIX)
2756 static int net_init_tap(QemuOpts
*opts
,
2764 if (qemu_opt_get(opts
, "fd")) {
2765 if (qemu_opt_get(opts
, "ifname") ||
2766 qemu_opt_get(opts
, "script") ||
2767 qemu_opt_get(opts
, "downscript") ||
2768 qemu_opt_get(opts
, "vnet_hdr")) {
2769 qemu_error("ifname=, script=, downscript= and vnet_hdr= is invalid with fd=\n");
2773 fd
= net_handle_fd_param(mon
, qemu_opt_get(opts
, "fd"));
2778 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
2780 vnet_hdr
= tap_probe_vnet_hdr(fd
);
2782 if (!qemu_opt_get(opts
, "script")) {
2783 qemu_opt_set(opts
, "script", DEFAULT_NETWORK_SCRIPT
);
2786 if (!qemu_opt_get(opts
, "downscript")) {
2787 qemu_opt_set(opts
, "downscript", DEFAULT_NETWORK_DOWN_SCRIPT
);
2790 fd
= net_tap_init(opts
, &vnet_hdr
);
2793 s
= net_tap_fd_init(vlan
, "tap", name
, fd
, vnet_hdr
);
2799 if (tap_set_sndbuf(s
, opts
) < 0) {
2803 if (qemu_opt_get(opts
, "fd")) {
2804 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "fd=%d", fd
);
2806 const char *ifname
, *script
, *downscript
;
2808 ifname
= qemu_opt_get(opts
, "ifname");
2809 script
= qemu_opt_get(opts
, "script");
2810 downscript
= qemu_opt_get(opts
, "downscript");
2812 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2813 "ifname=%s,script=%s,downscript=%s",
2814 ifname
, script
, downscript
);
2816 if (strcmp(downscript
, "no") != 0) {
2817 snprintf(s
->down_script
, sizeof(s
->down_script
), "%s", downscript
);
2818 snprintf(s
->down_script_arg
, sizeof(s
->down_script_arg
), "%s", ifname
);
2823 vlan
->nb_host_devs
++;
2830 static int net_init_socket(QemuOpts
*opts
,
2835 if (qemu_opt_get(opts
, "fd")) {
2838 if (qemu_opt_get(opts
, "listen") ||
2839 qemu_opt_get(opts
, "connect") ||
2840 qemu_opt_get(opts
, "mcast")) {
2841 qemu_error("listen=, connect= and mcast= is invalid with fd=\n");
2845 fd
= net_handle_fd_param(mon
, qemu_opt_get(opts
, "fd"));
2850 if (!net_socket_fd_init(vlan
, "socket", name
, fd
, 1)) {
2854 } else if (qemu_opt_get(opts
, "listen")) {
2857 if (qemu_opt_get(opts
, "fd") ||
2858 qemu_opt_get(opts
, "connect") ||
2859 qemu_opt_get(opts
, "mcast")) {
2860 qemu_error("fd=, connect= and mcast= is invalid with listen=\n");
2864 listen
= qemu_opt_get(opts
, "listen");
2866 if (net_socket_listen_init(vlan
, "socket", name
, listen
) == -1) {
2869 } else if (qemu_opt_get(opts
, "connect")) {
2870 const char *connect
;
2872 if (qemu_opt_get(opts
, "fd") ||
2873 qemu_opt_get(opts
, "listen") ||
2874 qemu_opt_get(opts
, "mcast")) {
2875 qemu_error("fd=, listen= and mcast= is invalid with connect=\n");
2879 connect
= qemu_opt_get(opts
, "connect");
2881 if (net_socket_connect_init(vlan
, "socket", name
, connect
) == -1) {
2884 } else if (qemu_opt_get(opts
, "mcast")) {
2887 if (qemu_opt_get(opts
, "fd") ||
2888 qemu_opt_get(opts
, "connect") ||
2889 qemu_opt_get(opts
, "listen")) {
2890 qemu_error("fd=, connect= and listen= is invalid with mcast=\n");
2894 mcast
= qemu_opt_get(opts
, "mcast");
2896 if (net_socket_mcast_init(vlan
, "socket", name
, mcast
) == -1) {
2900 qemu_error("-socket requires fd=, listen=, connect= or mcast=\n");
2905 vlan
->nb_host_devs
++;
2912 static int net_init_vde(QemuOpts
*opts
,
2921 sock
= qemu_opt_get(opts
, "sock");
2922 group
= qemu_opt_get(opts
, "group");
2924 port
= qemu_opt_get_number(opts
, "port", 0);
2925 mode
= qemu_opt_get_number(opts
, "mode", 0700);
2927 if (net_vde_init(vlan
, "vde", name
, sock
, port
, group
, mode
) == -1) {
2932 vlan
->nb_host_devs
++;
2939 static int net_init_dump(QemuOpts
*opts
,
2950 file
= qemu_opt_get(opts
, "file");
2952 snprintf(def_file
, sizeof(def_file
), "qemu-vlan%d.pcap", vlan
->id
);
2956 len
= qemu_opt_get_size(opts
, "len", 65536);
2958 return net_dump_init(vlan
, "dump", name
, file
, len
);
2961 #define NET_COMMON_PARAMS_DESC \
2964 .type = QEMU_OPT_STRING, \
2965 .help = "net client type (nic, tap etc.)", \
2968 .type = QEMU_OPT_NUMBER, \
2969 .help = "vlan number", \
2972 .type = QEMU_OPT_STRING, \
2973 .help = "identifier for monitor commands", \
2976 typedef int (*net_client_init_func
)(QemuOpts
*opts
,
2981 /* magic number, but compiler will warn if too small */
2982 #define NET_MAX_DESC 20
2986 net_client_init_func init
;
2987 QemuOptDesc desc
[NET_MAX_DESC
];
2988 } net_client_types
[] = {
2992 NET_COMMON_PARAMS_DESC
,
2993 { /* end of list */ }
2997 .init
= net_init_nic
,
2999 NET_COMMON_PARAMS_DESC
,
3002 .type
= QEMU_OPT_STRING
,
3003 .help
= "id of -netdev to connect to",
3007 .type
= QEMU_OPT_STRING
,
3008 .help
= "MAC address",
3011 .type
= QEMU_OPT_STRING
,
3012 .help
= "device model (e1000, rtl8139, virtio etc.)",
3015 .type
= QEMU_OPT_STRING
,
3016 .help
= "PCI device address",
3019 .type
= QEMU_OPT_NUMBER
,
3020 .help
= "number of MSI-x vectors, 0 to disable MSI-X",
3022 { /* end of list */ }
3027 .init
= net_init_slirp
,
3029 NET_COMMON_PARAMS_DESC
,
3032 .type
= QEMU_OPT_STRING
,
3033 .help
= "client hostname reported by the builtin DHCP server",
3036 .type
= QEMU_OPT_STRING
,
3037 .help
= "isolate the guest from the host (y|yes|n|no)",
3040 .type
= QEMU_OPT_STRING
,
3041 .help
= "legacy parameter, use net= instead",
3044 .type
= QEMU_OPT_STRING
,
3045 .help
= "IP address and optional netmask",
3048 .type
= QEMU_OPT_STRING
,
3049 .help
= "guest-visible address of the host",
3052 .type
= QEMU_OPT_STRING
,
3053 .help
= "root directory of the built-in TFTP server",
3056 .type
= QEMU_OPT_STRING
,
3057 .help
= "BOOTP filename, for use with tftp=",
3059 .name
= "dhcpstart",
3060 .type
= QEMU_OPT_STRING
,
3061 .help
= "the first of the 16 IPs the built-in DHCP server can assign",
3064 .type
= QEMU_OPT_STRING
,
3065 .help
= "guest-visible address of the virtual nameserver",
3068 .type
= QEMU_OPT_STRING
,
3069 .help
= "root directory of the built-in SMB server",
3071 .name
= "smbserver",
3072 .type
= QEMU_OPT_STRING
,
3073 .help
= "IP address of the built-in SMB server",
3076 .type
= QEMU_OPT_STRING
,
3077 .help
= "guest port number to forward incoming TCP or UDP connections",
3080 .type
= QEMU_OPT_STRING
,
3081 .help
= "IP address and port to forward guest TCP connections",
3083 { /* end of list */ }
3089 .init
= net_init_tap_win32
,
3091 NET_COMMON_PARAMS_DESC
,
3094 .type
= QEMU_OPT_STRING
,
3095 .help
= "interface name",
3097 { /* end of list */ }
3099 #elif !defined(_AIX)
3102 .init
= net_init_tap
,
3104 NET_COMMON_PARAMS_DESC
,
3107 .type
= QEMU_OPT_STRING
,
3108 .help
= "file descriptor of an already opened tap",
3111 .type
= QEMU_OPT_STRING
,
3112 .help
= "interface name",
3115 .type
= QEMU_OPT_STRING
,
3116 .help
= "script to initialize the interface",
3118 .name
= "downscript",
3119 .type
= QEMU_OPT_STRING
,
3120 .help
= "script to shut down the interface",
3123 .type
= QEMU_OPT_SIZE
,
3124 .help
= "send buffer limit"
3127 .type
= QEMU_OPT_BOOL
,
3128 .help
= "enable the IFF_VNET_HDR flag on the tap interface"
3130 { /* end of list */ }
3135 .init
= net_init_socket
,
3137 NET_COMMON_PARAMS_DESC
,
3140 .type
= QEMU_OPT_STRING
,
3141 .help
= "file descriptor of an already opened socket",
3144 .type
= QEMU_OPT_STRING
,
3145 .help
= "port number, and optional hostname, to listen on",
3148 .type
= QEMU_OPT_STRING
,
3149 .help
= "port number, and optional hostname, to connect to",
3152 .type
= QEMU_OPT_STRING
,
3153 .help
= "UDP multicast address and port number",
3155 { /* end of list */ }
3160 .init
= net_init_vde
,
3162 NET_COMMON_PARAMS_DESC
,
3165 .type
= QEMU_OPT_STRING
,
3166 .help
= "socket path",
3169 .type
= QEMU_OPT_NUMBER
,
3170 .help
= "port number",
3173 .type
= QEMU_OPT_STRING
,
3174 .help
= "group owner of socket",
3177 .type
= QEMU_OPT_NUMBER
,
3178 .help
= "permissions for socket",
3180 { /* end of list */ }
3185 .init
= net_init_dump
,
3187 NET_COMMON_PARAMS_DESC
,
3190 .type
= QEMU_OPT_SIZE
,
3191 .help
= "per-packet size limit (64k default)",
3194 .type
= QEMU_OPT_STRING
,
3195 .help
= "dump file path (default is qemu-vlan0.pcap)",
3197 { /* end of list */ }
3200 { /* end of list */ }
3203 int net_client_init(Monitor
*mon
, QemuOpts
*opts
, int is_netdev
)
3209 type
= qemu_opt_get(opts
, "type");
3211 qemu_error("No type specified for -net\n");
3216 if (strcmp(type
, "tap") != 0 &&
3218 strcmp(type
, "user") != 0 &&
3221 strcmp(type
, "vde") != 0 &&
3223 strcmp(type
, "socket") != 0) {
3224 qemu_error("The '%s' network backend type is not valid with -netdev\n",
3229 if (qemu_opt_get(opts
, "vlan")) {
3230 qemu_error("The 'vlan' parameter is not valid with -netdev\n");
3233 if (qemu_opt_get(opts
, "name")) {
3234 qemu_error("The 'name' parameter is not valid with -netdev\n");
3237 if (!qemu_opts_id(opts
)) {
3238 qemu_error("The id= parameter is required with -netdev\n");
3243 name
= qemu_opts_id(opts
);
3245 name
= qemu_opt_get(opts
, "name");
3248 for (i
= 0; net_client_types
[i
].type
!= NULL
; i
++) {
3249 if (!strcmp(net_client_types
[i
].type
, type
)) {
3250 VLANState
*vlan
= NULL
;
3252 if (qemu_opts_validate(opts
, &net_client_types
[i
].desc
[0]) == -1) {
3256 /* Do not add to a vlan if it's a -netdev or a nic with a
3257 * netdev= parameter. */
3259 (strcmp(type
, "nic") == 0 && qemu_opt_get(opts
, "netdev")))) {
3260 vlan
= qemu_find_vlan(qemu_opt_get_number(opts
, "vlan", 0), 1);
3263 if (net_client_types
[i
].init
) {
3264 return net_client_types
[i
].init(opts
, mon
, name
, vlan
);
3271 qemu_error("Invalid -net type '%s'\n", type
);
3275 void net_client_uninit(NICInfo
*nd
)
3278 nd
->vlan
->nb_guest_devs
--;
3282 qemu_free(nd
->model
);
3283 qemu_free(nd
->name
);
3284 qemu_free(nd
->devaddr
);
3289 static int net_host_check_device(const char *device
)
3292 const char *valid_param_list
[] = { "tap", "socket", "dump"
3300 for (i
= 0; i
< sizeof(valid_param_list
) / sizeof(char *); i
++) {
3301 if (!strncmp(valid_param_list
[i
], device
,
3302 strlen(valid_param_list
[i
])))
3309 void net_host_device_add(Monitor
*mon
, const QDict
*qdict
)
3311 const char *device
= qdict_get_str(qdict
, "device");
3312 const char *opts_str
= qdict_get_try_str(qdict
, "opts");
3315 if (!net_host_check_device(device
)) {
3316 monitor_printf(mon
, "invalid host network device %s\n", device
);
3320 opts
= qemu_opts_parse(&qemu_net_opts
, opts_str
? opts_str
: "", NULL
);
3322 monitor_printf(mon
, "parsing network options '%s' failed\n",
3323 opts_str
? opts_str
: "");
3327 qemu_opt_set(opts
, "type", device
);
3329 if (net_client_init(mon
, opts
, 0) < 0) {
3330 monitor_printf(mon
, "adding host network device %s failed\n", device
);
3334 void net_host_device_remove(Monitor
*mon
, const QDict
*qdict
)
3336 VLANClientState
*vc
;
3337 int vlan_id
= qdict_get_int(qdict
, "vlan_id");
3338 const char *device
= qdict_get_str(qdict
, "device");
3340 vc
= qemu_find_vlan_client_by_name(mon
, vlan_id
, device
);
3344 if (!net_host_check_device(vc
->model
)) {
3345 monitor_printf(mon
, "invalid host network device %s\n", device
);
3348 qemu_del_vlan_client(vc
);
3351 void net_set_boot_mask(int net_boot_mask
)
3355 /* Only the first four NICs may be bootable */
3356 net_boot_mask
= net_boot_mask
& 0xF;
3358 for (i
= 0; i
< nb_nics
; i
++) {
3359 if (net_boot_mask
& (1 << i
)) {
3360 nd_table
[i
].bootable
= 1;
3361 net_boot_mask
&= ~(1 << i
);
3365 if (net_boot_mask
) {
3366 fprintf(stderr
, "Cannot boot from non-existent NIC\n");
3371 void do_info_network(Monitor
*mon
)
3375 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
3376 VLANClientState
*vc
;
3378 monitor_printf(mon
, "VLAN %d devices:\n", vlan
->id
);
3380 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
3381 monitor_printf(mon
, " %s: %s\n", vc
->name
, vc
->info_str
);
3386 void do_set_link(Monitor
*mon
, const QDict
*qdict
)
3389 VLANClientState
*vc
= NULL
;
3390 const char *name
= qdict_get_str(qdict
, "name");
3391 const char *up_or_down
= qdict_get_str(qdict
, "up_or_down");
3393 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
3394 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
3395 if (strcmp(vc
->name
, name
) == 0) {
3403 monitor_printf(mon
, "could not find network device '%s'\n", name
);
3407 if (strcmp(up_or_down
, "up") == 0)
3409 else if (strcmp(up_or_down
, "down") == 0)
3412 monitor_printf(mon
, "invalid link status '%s'; only 'up' or 'down' "
3413 "valid\n", up_or_down
);
3415 if (vc
->link_status_changed
)
3416 vc
->link_status_changed(vc
);
3419 void net_cleanup(void)
3422 VLANClientState
*vc
, *next_vc
;
3424 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
3425 QTAILQ_FOREACH_SAFE(vc
, &vlan
->clients
, next
, next_vc
) {
3426 qemu_del_vlan_client(vc
);
3430 QTAILQ_FOREACH_SAFE(vc
, &non_vlan_clients
, next
, next_vc
) {
3431 qemu_del_vlan_client(vc
);
3435 static void net_check_clients(void)
3439 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
3440 if (vlan
->nb_guest_devs
== 0 && vlan
->nb_host_devs
== 0)
3442 if (vlan
->nb_guest_devs
== 0)
3443 fprintf(stderr
, "Warning: vlan %d with no nics\n", vlan
->id
);
3444 if (vlan
->nb_host_devs
== 0)
3446 "Warning: vlan %d is not connected to host network\n",
3451 static int net_init_client(QemuOpts
*opts
, void *dummy
)
3453 if (net_client_init(NULL
, opts
, 0) < 0)
3458 static int net_init_netdev(QemuOpts
*opts
, void *dummy
)
3460 return net_client_init(NULL
, opts
, 1);
3463 int net_init_clients(void)
3465 if (QTAILQ_EMPTY(&qemu_net_opts
.head
)) {
3466 /* if no clients, we use a default config */
3467 qemu_opts_set(&qemu_net_opts
, NULL
, "type", "nic");
3469 qemu_opts_set(&qemu_net_opts
, NULL
, "type", "user");
3473 QTAILQ_INIT(&vlans
);
3474 QTAILQ_INIT(&non_vlan_clients
);
3476 if (qemu_opts_foreach(&qemu_netdev_opts
, net_init_netdev
, NULL
, 1) == -1)
3479 if (qemu_opts_foreach(&qemu_net_opts
, net_init_client
, NULL
, 1) == -1) {
3483 net_check_clients();
3488 int net_client_parse(QemuOptsList
*opts_list
, const char *optarg
)
3490 #if defined(CONFIG_SLIRP)
3491 /* handle legacy -net channel,port:chr */
3492 if (!strcmp(opts_list
->name
, "net") &&
3493 !strncmp(optarg
, "channel,", strlen("channel,"))) {
3496 optarg
+= strlen("channel,");
3498 if (QTAILQ_EMPTY(&slirp_stacks
)) {
3499 struct slirp_config_str
*config
;
3501 config
= qemu_malloc(sizeof(*config
));
3502 pstrcpy(config
->str
, sizeof(config
->str
), optarg
);
3503 config
->flags
= SLIRP_CFG_LEGACY
;
3504 config
->next
= slirp_configs
;
3505 slirp_configs
= config
;
3508 ret
= slirp_guestfwd(QTAILQ_FIRST(&slirp_stacks
), optarg
, 1);
3514 if (!qemu_opts_parse(opts_list
, optarg
, "type")) {