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 <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>
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 static char *assign_name(VLANClientState
*vc1
, const char *model
)
289 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
292 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
293 if (vc
!= vc1
&& strcmp(vc
->model
, model
) == 0) {
299 snprintf(buf
, sizeof(buf
), "%s.%d", model
, id
);
301 return qemu_strdup(buf
);
304 VLANClientState
*qemu_new_vlan_client(VLANState
*vlan
,
307 NetCanReceive
*can_receive
,
309 NetReceiveIOV
*receive_iov
,
315 vc
= qemu_mallocz(sizeof(VLANClientState
));
317 vc
->model
= qemu_strdup(model
);
319 vc
->name
= qemu_strdup(name
);
321 vc
->name
= assign_name(vc
, model
);
322 vc
->can_receive
= can_receive
;
323 vc
->receive
= receive
;
324 vc
->receive_iov
= receive_iov
;
325 vc
->cleanup
= cleanup
;
330 QTAILQ_INSERT_TAIL(&vc
->vlan
->clients
, vc
, next
);
332 QTAILQ_INSERT_TAIL(&non_vlan_clients
, vc
, next
);
338 void qemu_del_vlan_client(VLANClientState
*vc
)
341 QTAILQ_REMOVE(&vc
->vlan
->clients
, vc
, next
);
343 QTAILQ_REMOVE(&non_vlan_clients
, vc
, next
);
351 qemu_free(vc
->model
);
355 VLANClientState
*qemu_find_vlan_client(VLANState
*vlan
, void *opaque
)
359 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
360 if (vc
->opaque
== opaque
) {
368 static VLANClientState
*
369 qemu_find_vlan_client_by_name(Monitor
*mon
, int vlan_id
,
370 const char *client_str
)
375 vlan
= qemu_find_vlan(vlan_id
, 0);
377 monitor_printf(mon
, "unknown VLAN %d\n", vlan_id
);
381 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
382 if (!strcmp(vc
->name
, client_str
)) {
387 monitor_printf(mon
, "can't find device %s on VLAN %d\n",
388 client_str
, vlan_id
);
394 int qemu_can_send_packet(VLANClientState
*sender
)
396 VLANState
*vlan
= sender
->vlan
;
403 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
408 /* no can_receive() handler, they can always receive */
409 if (!vc
->can_receive
|| vc
->can_receive(vc
)) {
417 qemu_deliver_packet(VLANClientState
*sender
, const uint8_t *buf
, int size
)
422 sender
->vlan
->delivering
= 1;
424 QTAILQ_FOREACH(vc
, &sender
->vlan
->clients
, next
) {
436 len
= vc
->receive(vc
, buf
, size
);
438 ret
= (ret
>= 0) ? ret
: len
;
441 sender
->vlan
->delivering
= 0;
446 void qemu_purge_queued_packets(VLANClientState
*vc
)
448 VLANPacket
*packet
, *next
;
453 QTAILQ_FOREACH_SAFE(packet
, &vc
->vlan
->send_queue
, entry
, next
) {
454 if (packet
->sender
== vc
) {
455 QTAILQ_REMOVE(&vc
->vlan
->send_queue
, packet
, entry
);
461 void qemu_flush_queued_packets(VLANClientState
*vc
)
466 while (!QTAILQ_EMPTY(&vc
->vlan
->send_queue
)) {
470 packet
= QTAILQ_FIRST(&vc
->vlan
->send_queue
);
471 QTAILQ_REMOVE(&vc
->vlan
->send_queue
, packet
, entry
);
473 ret
= qemu_deliver_packet(packet
->sender
, packet
->data
, packet
->size
);
474 if (ret
== 0 && packet
->sent_cb
!= NULL
) {
475 QTAILQ_INSERT_HEAD(&vc
->vlan
->send_queue
, packet
, entry
);
480 packet
->sent_cb(packet
->sender
, ret
);
486 static void qemu_enqueue_packet(VLANClientState
*sender
,
487 const uint8_t *buf
, int size
,
488 NetPacketSent
*sent_cb
)
492 packet
= qemu_malloc(sizeof(VLANPacket
) + size
);
493 packet
->sender
= sender
;
495 packet
->sent_cb
= sent_cb
;
496 memcpy(packet
->data
, buf
, size
);
498 QTAILQ_INSERT_TAIL(&sender
->vlan
->send_queue
, packet
, entry
);
501 ssize_t
qemu_send_packet_async(VLANClientState
*sender
,
502 const uint8_t *buf
, int size
,
503 NetPacketSent
*sent_cb
)
507 if (sender
->link_down
|| !sender
->vlan
) {
512 printf("qemu_send_packet_async:\n");
513 hex_dump(stdout
, buf
, size
);
516 if (sender
->vlan
->delivering
) {
517 qemu_enqueue_packet(sender
, buf
, size
, NULL
);
521 ret
= qemu_deliver_packet(sender
, buf
, size
);
522 if (ret
== 0 && sent_cb
!= NULL
) {
523 qemu_enqueue_packet(sender
, buf
, size
, sent_cb
);
527 qemu_flush_queued_packets(sender
);
532 void qemu_send_packet(VLANClientState
*vc
, const uint8_t *buf
, int size
)
534 qemu_send_packet_async(vc
, buf
, size
, NULL
);
537 static ssize_t
vc_sendv_compat(VLANClientState
*vc
, const struct iovec
*iov
,
540 uint8_t buffer
[4096];
544 for (i
= 0; i
< iovcnt
; i
++) {
547 len
= MIN(sizeof(buffer
) - offset
, iov
[i
].iov_len
);
548 memcpy(buffer
+ offset
, iov
[i
].iov_base
, len
);
552 return vc
->receive(vc
, buffer
, offset
);
555 static ssize_t
calc_iov_length(const struct iovec
*iov
, int iovcnt
)
560 for (i
= 0; i
< iovcnt
; i
++)
561 offset
+= iov
[i
].iov_len
;
565 static int qemu_deliver_packet_iov(VLANClientState
*sender
,
566 const struct iovec
*iov
, int iovcnt
)
571 sender
->vlan
->delivering
= 1;
573 QTAILQ_FOREACH(vc
, &sender
->vlan
->clients
, next
) {
581 ret
= calc_iov_length(iov
, iovcnt
);
585 if (vc
->receive_iov
) {
586 len
= vc
->receive_iov(vc
, iov
, iovcnt
);
588 len
= vc_sendv_compat(vc
, iov
, iovcnt
);
591 ret
= (ret
>= 0) ? ret
: len
;
594 sender
->vlan
->delivering
= 0;
599 static ssize_t
qemu_enqueue_packet_iov(VLANClientState
*sender
,
600 const struct iovec
*iov
, int iovcnt
,
601 NetPacketSent
*sent_cb
)
607 max_len
= calc_iov_length(iov
, iovcnt
);
609 packet
= qemu_malloc(sizeof(VLANPacket
) + max_len
);
610 packet
->sender
= sender
;
611 packet
->sent_cb
= sent_cb
;
614 for (i
= 0; i
< iovcnt
; i
++) {
615 size_t len
= iov
[i
].iov_len
;
617 memcpy(packet
->data
+ packet
->size
, iov
[i
].iov_base
, len
);
621 QTAILQ_INSERT_TAIL(&sender
->vlan
->send_queue
, packet
, entry
);
626 ssize_t
qemu_sendv_packet_async(VLANClientState
*sender
,
627 const struct iovec
*iov
, int iovcnt
,
628 NetPacketSent
*sent_cb
)
632 if (sender
->link_down
|| !sender
->vlan
) {
633 return calc_iov_length(iov
, iovcnt
);
636 if (sender
->vlan
->delivering
) {
637 return qemu_enqueue_packet_iov(sender
, iov
, iovcnt
, NULL
);
640 ret
= qemu_deliver_packet_iov(sender
, iov
, iovcnt
);
641 if (ret
== 0 && sent_cb
!= NULL
) {
642 qemu_enqueue_packet_iov(sender
, iov
, iovcnt
, sent_cb
);
646 qemu_flush_queued_packets(sender
);
652 qemu_sendv_packet(VLANClientState
*vc
, const struct iovec
*iov
, int iovcnt
)
654 return qemu_sendv_packet_async(vc
, iov
, iovcnt
, NULL
);
657 #if defined(CONFIG_SLIRP)
659 /* slirp network adapter */
661 #define SLIRP_CFG_HOSTFWD 1
662 #define SLIRP_CFG_LEGACY 2
664 struct slirp_config_str
{
665 struct slirp_config_str
*next
;
671 typedef struct SlirpState
{
672 QTAILQ_ENTRY(SlirpState
) entry
;
680 static struct slirp_config_str
*slirp_configs
;
681 const char *legacy_tftp_prefix
;
682 const char *legacy_bootp_filename
;
683 static QTAILQ_HEAD(slirp_stacks
, SlirpState
) slirp_stacks
=
684 QTAILQ_HEAD_INITIALIZER(slirp_stacks
);
686 static int slirp_hostfwd(SlirpState
*s
, const char *redir_str
,
688 static int slirp_guestfwd(SlirpState
*s
, const char *config_str
,
692 static const char *legacy_smb_export
;
694 static int slirp_smb(SlirpState
*s
, const char *exported_dir
,
695 struct in_addr vserver_addr
);
696 static void slirp_smb_cleanup(SlirpState
*s
);
698 static inline void slirp_smb_cleanup(SlirpState
*s
) { }
701 int slirp_can_output(void *opaque
)
703 SlirpState
*s
= opaque
;
705 return qemu_can_send_packet(s
->vc
);
708 void slirp_output(void *opaque
, const uint8_t *pkt
, int pkt_len
)
710 SlirpState
*s
= opaque
;
713 printf("slirp output:\n");
714 hex_dump(stdout
, pkt
, pkt_len
);
716 qemu_send_packet(s
->vc
, pkt
, pkt_len
);
719 static ssize_t
slirp_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
721 SlirpState
*s
= vc
->opaque
;
724 printf("slirp input:\n");
725 hex_dump(stdout
, buf
, size
);
727 slirp_input(s
->slirp
, buf
, size
);
731 static void net_slirp_cleanup(VLANClientState
*vc
)
733 SlirpState
*s
= vc
->opaque
;
735 slirp_cleanup(s
->slirp
);
736 slirp_smb_cleanup(s
);
737 QTAILQ_REMOVE(&slirp_stacks
, s
, entry
);
741 static int net_slirp_init(VLANState
*vlan
, const char *model
,
742 const char *name
, int restricted
,
743 const char *vnetwork
, const char *vhost
,
744 const char *vhostname
, const char *tftp_export
,
745 const char *bootfile
, const char *vdhcp_start
,
746 const char *vnameserver
, const char *smb_export
,
747 const char *vsmbserver
)
749 /* default settings according to historic slirp */
750 struct in_addr net
= { .s_addr
= htonl(0x0a000200) }; /* 10.0.2.0 */
751 struct in_addr mask
= { .s_addr
= htonl(0xffffff00) }; /* 255.255.255.0 */
752 struct in_addr host
= { .s_addr
= htonl(0x0a000202) }; /* 10.0.2.2 */
753 struct in_addr dhcp
= { .s_addr
= htonl(0x0a00020f) }; /* 10.0.2.15 */
754 struct in_addr dns
= { .s_addr
= htonl(0x0a000203) }; /* 10.0.2.3 */
756 struct in_addr smbsrv
= { .s_addr
= 0 };
763 struct slirp_config_str
*config
;
766 tftp_export
= legacy_tftp_prefix
;
769 bootfile
= legacy_bootp_filename
;
773 if (get_str_sep(buf
, sizeof(buf
), &vnetwork
, '/') < 0) {
774 if (!inet_aton(vnetwork
, &net
)) {
777 addr
= ntohl(net
.s_addr
);
778 if (!(addr
& 0x80000000)) {
779 mask
.s_addr
= htonl(0xff000000); /* class A */
780 } else if ((addr
& 0xfff00000) == 0xac100000) {
781 mask
.s_addr
= htonl(0xfff00000); /* priv. 172.16.0.0/12 */
782 } else if ((addr
& 0xc0000000) == 0x80000000) {
783 mask
.s_addr
= htonl(0xffff0000); /* class B */
784 } else if ((addr
& 0xffff0000) == 0xc0a80000) {
785 mask
.s_addr
= htonl(0xffff0000); /* priv. 192.168.0.0/16 */
786 } else if ((addr
& 0xffff0000) == 0xc6120000) {
787 mask
.s_addr
= htonl(0xfffe0000); /* tests 198.18.0.0/15 */
788 } else if ((addr
& 0xe0000000) == 0xe0000000) {
789 mask
.s_addr
= htonl(0xffffff00); /* class C */
791 mask
.s_addr
= htonl(0xfffffff0); /* multicast/reserved */
794 if (!inet_aton(buf
, &net
)) {
797 shift
= strtol(vnetwork
, &end
, 10);
799 if (!inet_aton(vnetwork
, &mask
)) {
802 } else if (shift
< 4 || shift
> 32) {
805 mask
.s_addr
= htonl(0xffffffff << (32 - shift
));
808 net
.s_addr
&= mask
.s_addr
;
809 host
.s_addr
= net
.s_addr
| (htonl(0x0202) & ~mask
.s_addr
);
810 dhcp
.s_addr
= net
.s_addr
| (htonl(0x020f) & ~mask
.s_addr
);
811 dns
.s_addr
= net
.s_addr
| (htonl(0x0203) & ~mask
.s_addr
);
814 if (vhost
&& !inet_aton(vhost
, &host
)) {
817 if ((host
.s_addr
& mask
.s_addr
) != net
.s_addr
) {
821 if (vdhcp_start
&& !inet_aton(vdhcp_start
, &dhcp
)) {
824 if ((dhcp
.s_addr
& mask
.s_addr
) != net
.s_addr
||
825 dhcp
.s_addr
== host
.s_addr
|| dhcp
.s_addr
== dns
.s_addr
) {
829 if (vnameserver
&& !inet_aton(vnameserver
, &dns
)) {
832 if ((dns
.s_addr
& mask
.s_addr
) != net
.s_addr
||
833 dns
.s_addr
== host
.s_addr
) {
838 if (vsmbserver
&& !inet_aton(vsmbserver
, &smbsrv
)) {
843 s
= qemu_mallocz(sizeof(SlirpState
));
844 s
->slirp
= slirp_init(restricted
, net
, mask
, host
, vhostname
,
845 tftp_export
, bootfile
, dhcp
, dns
, s
);
846 QTAILQ_INSERT_TAIL(&slirp_stacks
, s
, entry
);
848 for (config
= slirp_configs
; config
; config
= config
->next
) {
849 if (config
->flags
& SLIRP_CFG_HOSTFWD
) {
850 if (slirp_hostfwd(s
, config
->str
,
851 config
->flags
& SLIRP_CFG_LEGACY
) < 0)
854 if (slirp_guestfwd(s
, config
->str
,
855 config
->flags
& SLIRP_CFG_LEGACY
) < 0)
861 smb_export
= legacy_smb_export
;
864 if (slirp_smb(s
, smb_export
, smbsrv
) < 0)
869 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, slirp_receive
, NULL
,
870 net_slirp_cleanup
, s
);
871 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
872 "net=%s, restricted=%c", inet_ntoa(net
), restricted
? 'y' : 'n');
876 static SlirpState
*slirp_lookup(Monitor
*mon
, const char *vlan
,
882 vc
= qemu_find_vlan_client_by_name(mon
, strtol(vlan
, NULL
, 0), stack
);
886 if (strcmp(vc
->model
, "user")) {
887 monitor_printf(mon
, "invalid device specified\n");
892 if (QTAILQ_EMPTY(&slirp_stacks
)) {
893 monitor_printf(mon
, "user mode network stack not in use\n");
896 return QTAILQ_FIRST(&slirp_stacks
);
900 void net_slirp_hostfwd_remove(Monitor
*mon
, const QDict
*qdict
)
902 struct in_addr host_addr
= { .s_addr
= INADDR_ANY
};
905 const char *src_str
, *p
;
909 const char *arg1
= qdict_get_str(qdict
, "arg1");
910 const char *arg2
= qdict_get_try_str(qdict
, "arg2");
911 const char *arg3
= qdict_get_try_str(qdict
, "arg3");
914 s
= slirp_lookup(mon
, arg1
, arg2
);
917 s
= slirp_lookup(mon
, NULL
, NULL
);
924 if (!src_str
|| !src_str
[0])
928 get_str_sep(buf
, sizeof(buf
), &p
, ':');
930 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
932 } else if (!strcmp(buf
, "udp")) {
938 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
941 if (buf
[0] != '\0' && !inet_aton(buf
, &host_addr
)) {
947 err
= slirp_remove_hostfwd(QTAILQ_FIRST(&slirp_stacks
)->slirp
, is_udp
,
948 host_addr
, host_port
);
950 monitor_printf(mon
, "host forwarding rule for %s %s\n", src_str
,
951 err
? "removed" : "not found");
955 monitor_printf(mon
, "invalid format\n");
958 static int slirp_hostfwd(SlirpState
*s
, const char *redir_str
,
961 struct in_addr host_addr
= { .s_addr
= INADDR_ANY
};
962 struct in_addr guest_addr
= { .s_addr
= 0 };
963 int host_port
, guest_port
;
970 if (!p
|| get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
973 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
975 } else if (!strcmp(buf
, "udp")) {
981 if (!legacy_format
) {
982 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
985 if (buf
[0] != '\0' && !inet_aton(buf
, &host_addr
)) {
990 if (get_str_sep(buf
, sizeof(buf
), &p
, legacy_format
? ':' : '-') < 0) {
993 host_port
= strtol(buf
, &end
, 0);
994 if (*end
!= '\0' || host_port
< 1 || host_port
> 65535) {
998 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1001 if (buf
[0] != '\0' && !inet_aton(buf
, &guest_addr
)) {
1005 guest_port
= strtol(p
, &end
, 0);
1006 if (*end
!= '\0' || guest_port
< 1 || guest_port
> 65535) {
1010 if (slirp_add_hostfwd(s
->slirp
, is_udp
, host_addr
, host_port
, guest_addr
,
1012 qemu_error("could not set up host forwarding rule '%s'\n",
1019 qemu_error("invalid host forwarding rule '%s'\n", redir_str
);
1023 void net_slirp_hostfwd_add(Monitor
*mon
, const QDict
*qdict
)
1025 const char *redir_str
;
1027 const char *arg1
= qdict_get_str(qdict
, "arg1");
1028 const char *arg2
= qdict_get_try_str(qdict
, "arg2");
1029 const char *arg3
= qdict_get_try_str(qdict
, "arg3");
1032 s
= slirp_lookup(mon
, arg1
, arg2
);
1035 s
= slirp_lookup(mon
, NULL
, NULL
);
1039 slirp_hostfwd(s
, redir_str
, 0);
1044 int net_slirp_redir(const char *redir_str
)
1046 struct slirp_config_str
*config
;
1048 if (QTAILQ_EMPTY(&slirp_stacks
)) {
1049 config
= qemu_malloc(sizeof(*config
));
1050 pstrcpy(config
->str
, sizeof(config
->str
), redir_str
);
1051 config
->flags
= SLIRP_CFG_HOSTFWD
| SLIRP_CFG_LEGACY
;
1052 config
->next
= slirp_configs
;
1053 slirp_configs
= config
;
1057 return slirp_hostfwd(QTAILQ_FIRST(&slirp_stacks
), redir_str
, 1);
1062 /* automatic user mode samba server configuration */
1063 static void slirp_smb_cleanup(SlirpState
*s
)
1067 if (s
->smb_dir
[0] != '\0') {
1068 snprintf(cmd
, sizeof(cmd
), "rm -rf %s", s
->smb_dir
);
1070 s
->smb_dir
[0] = '\0';
1074 static int slirp_smb(SlirpState
* s
, const char *exported_dir
,
1075 struct in_addr vserver_addr
)
1077 static int instance
;
1079 char smb_cmdline
[128];
1082 snprintf(s
->smb_dir
, sizeof(s
->smb_dir
), "/tmp/qemu-smb.%ld-%d",
1083 (long)getpid(), instance
++);
1084 if (mkdir(s
->smb_dir
, 0700) < 0) {
1085 qemu_error("could not create samba server dir '%s'\n", s
->smb_dir
);
1088 snprintf(smb_conf
, sizeof(smb_conf
), "%s/%s", s
->smb_dir
, "smb.conf");
1090 f
= fopen(smb_conf
, "w");
1092 slirp_smb_cleanup(s
);
1093 qemu_error("could not create samba server configuration file '%s'\n",
1101 "socket address=127.0.0.1\n"
1102 "pid directory=%s\n"
1103 "lock directory=%s\n"
1104 "log file=%s/log.smbd\n"
1105 "smb passwd file=%s/smbpasswd\n"
1106 "security = share\n"
1120 snprintf(smb_cmdline
, sizeof(smb_cmdline
), "%s -s %s",
1121 SMBD_COMMAND
, smb_conf
);
1123 if (slirp_add_exec(s
->slirp
, 0, smb_cmdline
, &vserver_addr
, 139) < 0) {
1124 slirp_smb_cleanup(s
);
1125 qemu_error("conflicting/invalid smbserver address\n");
1131 /* automatic user mode samba server configuration (legacy interface) */
1132 int net_slirp_smb(const char *exported_dir
)
1134 struct in_addr vserver_addr
= { .s_addr
= 0 };
1136 if (legacy_smb_export
) {
1137 fprintf(stderr
, "-smb given twice\n");
1140 legacy_smb_export
= exported_dir
;
1141 if (!QTAILQ_EMPTY(&slirp_stacks
)) {
1142 return slirp_smb(QTAILQ_FIRST(&slirp_stacks
), exported_dir
,
1148 #endif /* !defined(_WIN32) */
1151 CharDriverState
*hd
;
1152 struct in_addr server
;
1157 static int guestfwd_can_read(void *opaque
)
1159 struct GuestFwd
*fwd
= opaque
;
1160 return slirp_socket_can_recv(fwd
->slirp
, fwd
->server
, fwd
->port
);
1163 static void guestfwd_read(void *opaque
, const uint8_t *buf
, int size
)
1165 struct GuestFwd
*fwd
= opaque
;
1166 slirp_socket_recv(fwd
->slirp
, fwd
->server
, fwd
->port
, buf
, size
);
1169 static int slirp_guestfwd(SlirpState
*s
, const char *config_str
,
1172 struct in_addr server
= { .s_addr
= 0 };
1173 struct GuestFwd
*fwd
;
1180 if (legacy_format
) {
1181 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1185 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1188 if (strcmp(buf
, "tcp") && buf
[0] != '\0') {
1191 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1194 if (buf
[0] != '\0' && !inet_aton(buf
, &server
)) {
1197 if (get_str_sep(buf
, sizeof(buf
), &p
, '-') < 0) {
1201 port
= strtol(buf
, &end
, 10);
1202 if (*end
!= '\0' || port
< 1 || port
> 65535) {
1206 fwd
= qemu_malloc(sizeof(struct GuestFwd
));
1207 snprintf(buf
, sizeof(buf
), "guestfwd.tcp:%d", port
);
1208 fwd
->hd
= qemu_chr_open(buf
, p
, NULL
);
1210 qemu_error("could not open guest forwarding device '%s'\n", buf
);
1215 if (slirp_add_exec(s
->slirp
, 3, fwd
->hd
, &server
, port
) < 0) {
1216 qemu_error("conflicting/invalid host:port in guest forwarding "
1217 "rule '%s'\n", config_str
);
1221 fwd
->server
= server
;
1223 fwd
->slirp
= s
->slirp
;
1225 qemu_chr_add_handlers(fwd
->hd
, guestfwd_can_read
, guestfwd_read
,
1230 qemu_error("invalid guest forwarding rule '%s'\n", config_str
);
1234 void do_info_usernet(Monitor
*mon
)
1238 QTAILQ_FOREACH(s
, &slirp_stacks
, entry
) {
1239 monitor_printf(mon
, "VLAN %d (%s):\n", s
->vc
->vlan
->id
, s
->vc
->name
);
1240 slirp_connection_info(s
->slirp
, mon
);
1244 #endif /* CONFIG_SLIRP */
1246 #if !defined(_WIN32)
1248 typedef struct TAPState
{
1249 VLANClientState
*vc
;
1251 char down_script
[1024];
1252 char down_script_arg
[128];
1254 unsigned int read_poll
: 1;
1255 unsigned int write_poll
: 1;
1258 static int launch_script(const char *setup_script
, const char *ifname
, int fd
);
1260 static int tap_can_send(void *opaque
);
1261 static void tap_send(void *opaque
);
1262 static void tap_writable(void *opaque
);
1264 static void tap_update_fd_handler(TAPState
*s
)
1266 qemu_set_fd_handler2(s
->fd
,
1267 s
->read_poll
? tap_can_send
: NULL
,
1268 s
->read_poll
? tap_send
: NULL
,
1269 s
->write_poll
? tap_writable
: NULL
,
1273 static void tap_read_poll(TAPState
*s
, int enable
)
1275 s
->read_poll
= !!enable
;
1276 tap_update_fd_handler(s
);
1279 static void tap_write_poll(TAPState
*s
, int enable
)
1281 s
->write_poll
= !!enable
;
1282 tap_update_fd_handler(s
);
1285 static void tap_writable(void *opaque
)
1287 TAPState
*s
= opaque
;
1289 tap_write_poll(s
, 0);
1291 qemu_flush_queued_packets(s
->vc
);
1294 static ssize_t
tap_receive_iov(VLANClientState
*vc
, const struct iovec
*iov
,
1297 TAPState
*s
= vc
->opaque
;
1301 len
= writev(s
->fd
, iov
, iovcnt
);
1302 } while (len
== -1 && errno
== EINTR
);
1304 if (len
== -1 && errno
== EAGAIN
) {
1305 tap_write_poll(s
, 1);
1312 static ssize_t
tap_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1314 TAPState
*s
= vc
->opaque
;
1318 len
= write(s
->fd
, buf
, size
);
1319 } while (len
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
1324 static int tap_can_send(void *opaque
)
1326 TAPState
*s
= opaque
;
1328 return qemu_can_send_packet(s
->vc
);
1332 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1337 sbuf
.maxlen
= maxlen
;
1338 sbuf
.buf
= (char *)buf
;
1340 return getmsg(tapfd
, NULL
, &sbuf
, &f
) >= 0 ? sbuf
.len
: -1;
1343 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1345 return read(tapfd
, buf
, maxlen
);
1349 static void tap_send_completed(VLANClientState
*vc
, ssize_t len
)
1351 TAPState
*s
= vc
->opaque
;
1352 tap_read_poll(s
, 1);
1355 static void tap_send(void *opaque
)
1357 TAPState
*s
= opaque
;
1361 size
= tap_read_packet(s
->fd
, s
->buf
, sizeof(s
->buf
));
1366 size
= qemu_send_packet_async(s
->vc
, s
->buf
, size
, tap_send_completed
);
1368 tap_read_poll(s
, 0);
1374 /* sndbuf should be set to a value lower than the tx queue
1375 * capacity of any destination network interface.
1376 * Ethernet NICs generally have txqueuelen=1000, so 1Mb is
1377 * a good default, given a 1500 byte MTU.
1379 #define TAP_DEFAULT_SNDBUF 1024*1024
1381 static int tap_set_sndbuf(TAPState
*s
, QemuOpts
*opts
)
1385 sndbuf
= qemu_opt_get_size(opts
, "sndbuf", TAP_DEFAULT_SNDBUF
);
1390 if (ioctl(s
->fd
, TUNSETSNDBUF
, &sndbuf
) == -1 && qemu_opt_get(opts
, "sndbuf")) {
1391 qemu_error("TUNSETSNDBUF ioctl failed: %s\n", strerror(errno
));
1397 static int tap_set_sndbuf(TAPState
*s
, QemuOpts
*opts
)
1401 #endif /* TUNSETSNDBUF */
1403 static void tap_cleanup(VLANClientState
*vc
)
1405 TAPState
*s
= vc
->opaque
;
1407 qemu_purge_queued_packets(vc
);
1409 if (s
->down_script
[0])
1410 launch_script(s
->down_script
, s
->down_script_arg
, s
->fd
);
1412 tap_read_poll(s
, 0);
1413 tap_write_poll(s
, 0);
1420 static TAPState
*net_tap_fd_init(VLANState
*vlan
,
1427 s
= qemu_mallocz(sizeof(TAPState
));
1429 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, tap_receive
,
1430 tap_receive_iov
, tap_cleanup
, s
);
1431 tap_read_poll(s
, 1);
1432 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "fd=%d", fd
);
1436 #if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__)
1437 static int tap_open(char *ifname
, int ifname_size
)
1443 TFR(fd
= open("/dev/tap", O_RDWR
));
1445 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
1450 dev
= devname(s
.st_rdev
, S_IFCHR
);
1451 pstrcpy(ifname
, ifname_size
, dev
);
1453 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1456 #elif defined(__sun__)
1457 #define TUNNEWPPA (('T'<<16) | 0x0001)
1459 * Allocate TAP device, returns opened fd.
1460 * Stores dev name in the first arg(must be large enough).
1462 static int tap_alloc(char *dev
, size_t dev_size
)
1464 int tap_fd
, if_fd
, ppa
= -1;
1465 static int ip_fd
= 0;
1468 static int arp_fd
= 0;
1469 int ip_muxid
, arp_muxid
;
1470 struct strioctl strioc_if
, strioc_ppa
;
1471 int link_type
= I_PLINK
;;
1473 char actual_name
[32] = "";
1475 memset(&ifr
, 0x0, sizeof(ifr
));
1479 while( *ptr
&& !qemu_isdigit((int)*ptr
) ) ptr
++;
1483 /* Check if IP device was opened */
1487 TFR(ip_fd
= open("/dev/udp", O_RDWR
, 0));
1489 syslog(LOG_ERR
, "Can't open /dev/ip (actually /dev/udp)");
1493 TFR(tap_fd
= open("/dev/tap", O_RDWR
, 0));
1495 syslog(LOG_ERR
, "Can't open /dev/tap");
1499 /* Assign a new PPA and get its unit number. */
1500 strioc_ppa
.ic_cmd
= TUNNEWPPA
;
1501 strioc_ppa
.ic_timout
= 0;
1502 strioc_ppa
.ic_len
= sizeof(ppa
);
1503 strioc_ppa
.ic_dp
= (char *)&ppa
;
1504 if ((ppa
= ioctl (tap_fd
, I_STR
, &strioc_ppa
)) < 0)
1505 syslog (LOG_ERR
, "Can't assign new interface");
1507 TFR(if_fd
= open("/dev/tap", O_RDWR
, 0));
1509 syslog(LOG_ERR
, "Can't open /dev/tap (2)");
1512 if(ioctl(if_fd
, I_PUSH
, "ip") < 0){
1513 syslog(LOG_ERR
, "Can't push IP module");
1517 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) < 0)
1518 syslog(LOG_ERR
, "Can't get flags\n");
1520 snprintf (actual_name
, 32, "tap%d", ppa
);
1521 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1524 /* Assign ppa according to the unit number returned by tun device */
1526 if (ioctl (if_fd
, SIOCSLIFNAME
, &ifr
) < 0)
1527 syslog (LOG_ERR
, "Can't set PPA %d", ppa
);
1528 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) <0)
1529 syslog (LOG_ERR
, "Can't get flags\n");
1530 /* Push arp module to if_fd */
1531 if (ioctl (if_fd
, I_PUSH
, "arp") < 0)
1532 syslog (LOG_ERR
, "Can't push ARP module (2)");
1534 /* Push arp module to ip_fd */
1535 if (ioctl (ip_fd
, I_POP
, NULL
) < 0)
1536 syslog (LOG_ERR
, "I_POP failed\n");
1537 if (ioctl (ip_fd
, I_PUSH
, "arp") < 0)
1538 syslog (LOG_ERR
, "Can't push ARP module (3)\n");
1540 TFR(arp_fd
= open ("/dev/tap", O_RDWR
, 0));
1542 syslog (LOG_ERR
, "Can't open %s\n", "/dev/tap");
1544 /* Set ifname to arp */
1545 strioc_if
.ic_cmd
= SIOCSLIFNAME
;
1546 strioc_if
.ic_timout
= 0;
1547 strioc_if
.ic_len
= sizeof(ifr
);
1548 strioc_if
.ic_dp
= (char *)&ifr
;
1549 if (ioctl(arp_fd
, I_STR
, &strioc_if
) < 0){
1550 syslog (LOG_ERR
, "Can't set ifname to arp\n");
1553 if((ip_muxid
= ioctl(ip_fd
, I_LINK
, if_fd
)) < 0){
1554 syslog(LOG_ERR
, "Can't link TAP device to IP");
1558 if ((arp_muxid
= ioctl (ip_fd
, link_type
, arp_fd
)) < 0)
1559 syslog (LOG_ERR
, "Can't link TAP device to ARP");
1563 memset(&ifr
, 0x0, sizeof(ifr
));
1564 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1565 ifr
.lifr_ip_muxid
= ip_muxid
;
1566 ifr
.lifr_arp_muxid
= arp_muxid
;
1568 if (ioctl (ip_fd
, SIOCSLIFMUXID
, &ifr
) < 0)
1570 ioctl (ip_fd
, I_PUNLINK
, arp_muxid
);
1571 ioctl (ip_fd
, I_PUNLINK
, ip_muxid
);
1572 syslog (LOG_ERR
, "Can't set multiplexor id");
1575 snprintf(dev
, dev_size
, "tap%d", ppa
);
1579 static int tap_open(char *ifname
, int ifname_size
)
1583 if( (fd
= tap_alloc(dev
, sizeof(dev
))) < 0 ){
1584 fprintf(stderr
, "Cannot allocate TAP device\n");
1587 pstrcpy(ifname
, ifname_size
, dev
);
1588 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1591 #elif defined (_AIX)
1592 static int tap_open(char *ifname
, int ifname_size
)
1594 fprintf (stderr
, "no tap on AIX\n");
1598 static int tap_open(char *ifname
, int ifname_size
)
1603 TFR(fd
= open("/dev/net/tun", O_RDWR
));
1605 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1608 memset(&ifr
, 0, sizeof(ifr
));
1609 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
1610 if (ifname
[0] != '\0')
1611 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, ifname
);
1613 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tap%d");
1614 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
1616 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1620 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
1621 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1626 static int launch_script(const char *setup_script
, const char *ifname
, int fd
)
1628 sigset_t oldmask
, mask
;
1634 sigaddset(&mask
, SIGCHLD
);
1635 sigprocmask(SIG_BLOCK
, &mask
, &oldmask
);
1637 /* try to launch network script */
1640 int open_max
= sysconf(_SC_OPEN_MAX
), i
;
1642 for (i
= 0; i
< open_max
; i
++) {
1643 if (i
!= STDIN_FILENO
&&
1644 i
!= STDOUT_FILENO
&&
1645 i
!= STDERR_FILENO
&&
1651 *parg
++ = (char *)setup_script
;
1652 *parg
++ = (char *)ifname
;
1654 execv(setup_script
, args
);
1656 } else if (pid
> 0) {
1657 while (waitpid(pid
, &status
, 0) != pid
) {
1660 sigprocmask(SIG_SETMASK
, &oldmask
, NULL
);
1662 if (WIFEXITED(status
) && WEXITSTATUS(status
) == 0) {
1666 fprintf(stderr
, "%s: could not launch network script\n", setup_script
);
1670 static TAPState
*net_tap_init(VLANState
*vlan
, const char *model
,
1671 const char *name
, const char *ifname1
,
1672 const char *setup_script
, const char *down_script
)
1678 if (ifname1
!= NULL
)
1679 pstrcpy(ifname
, sizeof(ifname
), ifname1
);
1682 TFR(fd
= tap_open(ifname
, sizeof(ifname
)));
1686 if (!setup_script
|| !strcmp(setup_script
, "no"))
1688 if (setup_script
[0] != '\0' &&
1689 launch_script(setup_script
, ifname
, fd
)) {
1692 s
= net_tap_fd_init(vlan
, model
, name
, fd
);
1693 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1694 "ifname=%s,script=%s,downscript=%s",
1695 ifname
, setup_script
, down_script
);
1696 if (down_script
&& strcmp(down_script
, "no")) {
1697 snprintf(s
->down_script
, sizeof(s
->down_script
), "%s", down_script
);
1698 snprintf(s
->down_script_arg
, sizeof(s
->down_script_arg
), "%s", ifname
);
1703 #endif /* !_WIN32 */
1705 #if defined(CONFIG_VDE)
1706 typedef struct VDEState
{
1707 VLANClientState
*vc
;
1711 static void vde_to_qemu(void *opaque
)
1713 VDEState
*s
= opaque
;
1717 size
= vde_recv(s
->vde
, (char *)buf
, sizeof(buf
), 0);
1719 qemu_send_packet(s
->vc
, buf
, size
);
1723 static ssize_t
vde_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1725 VDEState
*s
= vc
->opaque
;
1729 ret
= vde_send(s
->vde
, (const char *)buf
, size
, 0);
1730 } while (ret
< 0 && errno
== EINTR
);
1735 static void vde_cleanup(VLANClientState
*vc
)
1737 VDEState
*s
= vc
->opaque
;
1738 qemu_set_fd_handler(vde_datafd(s
->vde
), NULL
, NULL
, NULL
);
1743 static int net_vde_init(VLANState
*vlan
, const char *model
,
1744 const char *name
, const char *sock
,
1745 int port
, const char *group
, int mode
)
1748 char *init_group
= (char *)group
;
1749 char *init_sock
= (char *)sock
;
1751 struct vde_open_args args
= {
1753 .group
= init_group
,
1757 s
= qemu_mallocz(sizeof(VDEState
));
1758 s
->vde
= vde_open(init_sock
, (char *)"QEMU", &args
);
1763 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, vde_receive
,
1764 NULL
, vde_cleanup
, s
);
1765 qemu_set_fd_handler(vde_datafd(s
->vde
), vde_to_qemu
, NULL
, s
);
1766 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "sock=%s,fd=%d",
1767 sock
, vde_datafd(s
->vde
));
1772 /* network connection */
1773 typedef struct NetSocketState
{
1774 VLANClientState
*vc
;
1776 int state
; /* 0 = getting length, 1 = getting data */
1778 unsigned int packet_len
;
1780 struct sockaddr_in dgram_dst
; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1783 typedef struct NetSocketListenState
{
1788 } NetSocketListenState
;
1790 /* XXX: we consider we can send the whole packet without blocking */
1791 static ssize_t
net_socket_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1793 NetSocketState
*s
= vc
->opaque
;
1797 send_all(s
->fd
, (const uint8_t *)&len
, sizeof(len
));
1798 return send_all(s
->fd
, buf
, size
);
1801 static ssize_t
net_socket_receive_dgram(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1803 NetSocketState
*s
= vc
->opaque
;
1805 return sendto(s
->fd
, (const void *)buf
, size
, 0,
1806 (struct sockaddr
*)&s
->dgram_dst
, sizeof(s
->dgram_dst
));
1809 static void net_socket_send(void *opaque
)
1811 NetSocketState
*s
= opaque
;
1817 size
= recv(s
->fd
, (void *)buf1
, sizeof(buf1
), 0);
1819 err
= socket_error();
1820 if (err
!= EWOULDBLOCK
)
1822 } else if (size
== 0) {
1823 /* end of connection */
1825 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1831 /* reassemble a packet from the network */
1837 memcpy(s
->buf
+ s
->index
, buf
, l
);
1841 if (s
->index
== 4) {
1843 s
->packet_len
= ntohl(*(uint32_t *)s
->buf
);
1849 l
= s
->packet_len
- s
->index
;
1852 if (s
->index
+ l
<= sizeof(s
->buf
)) {
1853 memcpy(s
->buf
+ s
->index
, buf
, l
);
1855 fprintf(stderr
, "serious error: oversized packet received,"
1856 "connection terminated.\n");
1864 if (s
->index
>= s
->packet_len
) {
1865 qemu_send_packet(s
->vc
, s
->buf
, s
->packet_len
);
1874 static void net_socket_send_dgram(void *opaque
)
1876 NetSocketState
*s
= opaque
;
1879 size
= recv(s
->fd
, (void *)s
->buf
, sizeof(s
->buf
), 0);
1883 /* end of connection */
1884 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1887 qemu_send_packet(s
->vc
, s
->buf
, size
);
1890 static int net_socket_mcast_create(struct sockaddr_in
*mcastaddr
)
1895 if (!IN_MULTICAST(ntohl(mcastaddr
->sin_addr
.s_addr
))) {
1896 fprintf(stderr
, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1897 inet_ntoa(mcastaddr
->sin_addr
),
1898 (int)ntohl(mcastaddr
->sin_addr
.s_addr
));
1902 fd
= socket(PF_INET
, SOCK_DGRAM
, 0);
1904 perror("socket(PF_INET, SOCK_DGRAM)");
1909 ret
=setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
,
1910 (const char *)&val
, sizeof(val
));
1912 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1916 ret
= bind(fd
, (struct sockaddr
*)mcastaddr
, sizeof(*mcastaddr
));
1922 /* Add host to multicast group */
1923 imr
.imr_multiaddr
= mcastaddr
->sin_addr
;
1924 imr
.imr_interface
.s_addr
= htonl(INADDR_ANY
);
1926 ret
= setsockopt(fd
, IPPROTO_IP
, IP_ADD_MEMBERSHIP
,
1927 (const char *)&imr
, sizeof(struct ip_mreq
));
1929 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1933 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1935 ret
=setsockopt(fd
, IPPROTO_IP
, IP_MULTICAST_LOOP
,
1936 (const char *)&val
, sizeof(val
));
1938 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1942 socket_set_nonblock(fd
);
1950 static void net_socket_cleanup(VLANClientState
*vc
)
1952 NetSocketState
*s
= vc
->opaque
;
1953 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1958 static NetSocketState
*net_socket_fd_init_dgram(VLANState
*vlan
,
1961 int fd
, int is_connected
)
1963 struct sockaddr_in saddr
;
1965 socklen_t saddr_len
;
1968 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1969 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1970 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1974 if (getsockname(fd
, (struct sockaddr
*) &saddr
, &saddr_len
) == 0) {
1976 if (saddr
.sin_addr
.s_addr
==0) {
1977 fprintf(stderr
, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1981 /* clone dgram socket */
1982 newfd
= net_socket_mcast_create(&saddr
);
1984 /* error already reported by net_socket_mcast_create() */
1988 /* clone newfd to fd, close newfd */
1993 fprintf(stderr
, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1994 fd
, strerror(errno
));
1999 s
= qemu_mallocz(sizeof(NetSocketState
));
2002 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, net_socket_receive_dgram
,
2003 NULL
, net_socket_cleanup
, s
);
2004 qemu_set_fd_handler(s
->fd
, net_socket_send_dgram
, NULL
, s
);
2006 /* mcast: save bound address as dst */
2007 if (is_connected
) s
->dgram_dst
=saddr
;
2009 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2010 "socket: fd=%d (%s mcast=%s:%d)",
2011 fd
, is_connected
? "cloned" : "",
2012 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2016 static void net_socket_connect(void *opaque
)
2018 NetSocketState
*s
= opaque
;
2019 qemu_set_fd_handler(s
->fd
, net_socket_send
, NULL
, s
);
2022 static NetSocketState
*net_socket_fd_init_stream(VLANState
*vlan
,
2025 int fd
, int is_connected
)
2028 s
= qemu_mallocz(sizeof(NetSocketState
));
2030 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, net_socket_receive
,
2031 NULL
, net_socket_cleanup
, s
);
2032 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2033 "socket: fd=%d", fd
);
2035 net_socket_connect(s
);
2037 qemu_set_fd_handler(s
->fd
, NULL
, net_socket_connect
, s
);
2042 static NetSocketState
*net_socket_fd_init(VLANState
*vlan
,
2043 const char *model
, const char *name
,
2044 int fd
, int is_connected
)
2046 int so_type
= -1, optlen
=sizeof(so_type
);
2048 if(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&so_type
,
2049 (socklen_t
*)&optlen
)< 0) {
2050 fprintf(stderr
, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd
);
2055 return net_socket_fd_init_dgram(vlan
, model
, name
, fd
, is_connected
);
2057 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
2059 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
2060 fprintf(stderr
, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type
, fd
);
2061 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
2066 static void net_socket_accept(void *opaque
)
2068 NetSocketListenState
*s
= opaque
;
2070 struct sockaddr_in saddr
;
2075 len
= sizeof(saddr
);
2076 fd
= accept(s
->fd
, (struct sockaddr
*)&saddr
, &len
);
2077 if (fd
< 0 && errno
!= EINTR
) {
2079 } else if (fd
>= 0) {
2083 s1
= net_socket_fd_init(s
->vlan
, s
->model
, s
->name
, fd
, 1);
2087 snprintf(s1
->vc
->info_str
, sizeof(s1
->vc
->info_str
),
2088 "socket: connection from %s:%d",
2089 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2093 static int net_socket_listen_init(VLANState
*vlan
,
2096 const char *host_str
)
2098 NetSocketListenState
*s
;
2100 struct sockaddr_in saddr
;
2102 if (parse_host_port(&saddr
, host_str
) < 0)
2105 s
= qemu_mallocz(sizeof(NetSocketListenState
));
2107 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
2112 socket_set_nonblock(fd
);
2114 /* allow fast reuse */
2116 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (const char *)&val
, sizeof(val
));
2118 ret
= bind(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
2123 ret
= listen(fd
, 0);
2129 s
->model
= qemu_strdup(model
);
2130 s
->name
= name
? qemu_strdup(name
) : NULL
;
2132 qemu_set_fd_handler(fd
, net_socket_accept
, NULL
, s
);
2136 static int net_socket_connect_init(VLANState
*vlan
,
2139 const char *host_str
)
2142 int fd
, connected
, ret
, err
;
2143 struct sockaddr_in saddr
;
2145 if (parse_host_port(&saddr
, host_str
) < 0)
2148 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
2153 socket_set_nonblock(fd
);
2157 ret
= connect(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
2159 err
= socket_error();
2160 if (err
== EINTR
|| err
== EWOULDBLOCK
) {
2161 } else if (err
== EINPROGRESS
) {
2164 } else if (err
== WSAEALREADY
) {
2177 s
= net_socket_fd_init(vlan
, model
, name
, fd
, connected
);
2180 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2181 "socket: connect to %s:%d",
2182 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2186 static int net_socket_mcast_init(VLANState
*vlan
,
2189 const char *host_str
)
2193 struct sockaddr_in saddr
;
2195 if (parse_host_port(&saddr
, host_str
) < 0)
2199 fd
= net_socket_mcast_create(&saddr
);
2203 s
= net_socket_fd_init(vlan
, model
, name
, fd
, 0);
2207 s
->dgram_dst
= saddr
;
2209 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2210 "socket: mcast=%s:%d",
2211 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2216 typedef struct DumpState
{
2217 VLANClientState
*pcap_vc
;
2222 #define PCAP_MAGIC 0xa1b2c3d4
2224 struct pcap_file_hdr
{
2226 uint16_t version_major
;
2227 uint16_t version_minor
;
2234 struct pcap_sf_pkthdr
{
2243 static ssize_t
dump_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
2245 DumpState
*s
= vc
->opaque
;
2246 struct pcap_sf_pkthdr hdr
;
2250 /* Early return in case of previous error. */
2255 ts
= muldiv64(qemu_get_clock(vm_clock
), 1000000, get_ticks_per_sec());
2256 caplen
= size
> s
->pcap_caplen
? s
->pcap_caplen
: size
;
2258 hdr
.ts
.tv_sec
= ts
/ 1000000;
2259 hdr
.ts
.tv_usec
= ts
% 1000000;
2260 hdr
.caplen
= caplen
;
2262 if (write(s
->fd
, &hdr
, sizeof(hdr
)) != sizeof(hdr
) ||
2263 write(s
->fd
, buf
, caplen
) != caplen
) {
2264 qemu_log("-net dump write error - stop dump\n");
2272 static void net_dump_cleanup(VLANClientState
*vc
)
2274 DumpState
*s
= vc
->opaque
;
2280 static int net_dump_init(VLANState
*vlan
, const char *device
,
2281 const char *name
, const char *filename
, int len
)
2283 struct pcap_file_hdr hdr
;
2286 s
= qemu_malloc(sizeof(DumpState
));
2288 s
->fd
= open(filename
, O_CREAT
| O_WRONLY
| O_BINARY
, 0644);
2290 qemu_error("-net dump: can't open %s\n", filename
);
2294 s
->pcap_caplen
= len
;
2296 hdr
.magic
= PCAP_MAGIC
;
2297 hdr
.version_major
= 2;
2298 hdr
.version_minor
= 4;
2301 hdr
.snaplen
= s
->pcap_caplen
;
2304 if (write(s
->fd
, &hdr
, sizeof(hdr
)) < sizeof(hdr
)) {
2305 qemu_error("-net dump write error: %s\n", strerror(errno
));
2311 s
->pcap_vc
= qemu_new_vlan_client(vlan
, device
, name
, NULL
, dump_receive
, NULL
,
2312 net_dump_cleanup
, s
);
2313 snprintf(s
->pcap_vc
->info_str
, sizeof(s
->pcap_vc
->info_str
),
2314 "dump to %s (len=%d)", filename
, len
);
2318 /* find or alloc a new VLAN */
2319 VLANState
*qemu_find_vlan(int id
, int allocate
)
2323 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
2324 if (vlan
->id
== id
) {
2333 vlan
= qemu_mallocz(sizeof(VLANState
));
2335 QTAILQ_INIT(&vlan
->clients
);
2336 QTAILQ_INIT(&vlan
->send_queue
);
2338 QTAILQ_INSERT_TAIL(&vlans
, vlan
, next
);
2343 static VLANClientState
*qemu_find_netdev(const char *id
)
2345 VLANClientState
*vc
;
2347 QTAILQ_FOREACH(vc
, &non_vlan_clients
, next
) {
2348 if (!strcmp(vc
->name
, id
)) {
2356 static int nic_get_free_idx(void)
2360 for (index
= 0; index
< MAX_NICS
; index
++)
2361 if (!nd_table
[index
].used
)
2366 int qemu_show_nic_models(const char *arg
, const char *const *models
)
2370 if (!arg
|| strcmp(arg
, "?"))
2373 fprintf(stderr
, "qemu: Supported NIC models: ");
2374 for (i
= 0 ; models
[i
]; i
++)
2375 fprintf(stderr
, "%s%c", models
[i
], models
[i
+1] ? ',' : '\n');
2379 void qemu_check_nic_model(NICInfo
*nd
, const char *model
)
2381 const char *models
[2];
2386 if (qemu_show_nic_models(nd
->model
, models
))
2388 if (qemu_find_nic_model(nd
, models
, model
) < 0)
2392 int qemu_find_nic_model(NICInfo
*nd
, const char * const *models
,
2393 const char *default_model
)
2398 nd
->model
= qemu_strdup(default_model
);
2400 for (i
= 0 ; models
[i
]; i
++) {
2401 if (strcmp(nd
->model
, models
[i
]) == 0)
2405 qemu_error("qemu: Unsupported NIC model: %s\n", nd
->model
);
2409 static int net_handle_fd_param(Monitor
*mon
, const char *param
)
2411 if (!qemu_isdigit(param
[0])) {
2414 fd
= monitor_get_fd(mon
, param
);
2416 qemu_error("No file descriptor named %s found", param
);
2422 return strtol(param
, NULL
, 0);
2426 static int net_init_nic(QemuOpts
*opts
,
2435 idx
= nic_get_free_idx();
2436 if (idx
== -1 || nb_nics
>= MAX_NICS
) {
2437 qemu_error("Too Many NICs\n");
2441 nd
= &nd_table
[idx
];
2443 memset(nd
, 0, sizeof(*nd
));
2445 if ((netdev
= qemu_opt_get(opts
, "netdev"))) {
2446 nd
->netdev
= qemu_find_netdev(netdev
);
2448 qemu_error("netdev '%s' not found\n", netdev
);
2456 nd
->name
= qemu_strdup(name
);
2458 if (qemu_opt_get(opts
, "model")) {
2459 nd
->model
= qemu_strdup(qemu_opt_get(opts
, "model"));
2461 if (qemu_opt_get(opts
, "addr")) {
2462 nd
->devaddr
= qemu_strdup(qemu_opt_get(opts
, "addr"));
2465 nd
->macaddr
[0] = 0x52;
2466 nd
->macaddr
[1] = 0x54;
2467 nd
->macaddr
[2] = 0x00;
2468 nd
->macaddr
[3] = 0x12;
2469 nd
->macaddr
[4] = 0x34;
2470 nd
->macaddr
[5] = 0x56 + idx
;
2472 if (qemu_opt_get(opts
, "macaddr") &&
2473 parse_macaddr(nd
->macaddr
, qemu_opt_get(opts
, "macaddr")) < 0) {
2474 qemu_error("invalid syntax for ethernet address\n");
2478 nd
->nvectors
= qemu_opt_get_number(opts
, "vectors", NIC_NVECTORS_UNSPECIFIED
);
2479 if (nd
->nvectors
!= NIC_NVECTORS_UNSPECIFIED
&&
2480 (nd
->nvectors
< 0 || nd
->nvectors
> 0x7ffffff)) {
2481 qemu_error("invalid # of vectors: %d\n", nd
->nvectors
);
2487 nd
->vlan
->nb_guest_devs
++;
2494 #if defined(CONFIG_SLIRP)
2495 static int net_init_slirp_configs(const char *name
, const char *value
, void *opaque
)
2497 struct slirp_config_str
*config
;
2499 if (strcmp(name
, "hostfwd") != 0 && strcmp(name
, "guestfwd") != 0) {
2503 config
= qemu_mallocz(sizeof(*config
));
2505 pstrcpy(config
->str
, sizeof(config
->str
), value
);
2507 if (!strcmp(name
, "hostfwd")) {
2508 config
->flags
= SLIRP_CFG_HOSTFWD
;
2511 config
->next
= slirp_configs
;
2512 slirp_configs
= config
;
2517 static int net_init_slirp(QemuOpts
*opts
,
2522 struct slirp_config_str
*config
;
2524 const char *vhostname
;
2525 const char *vdhcp_start
;
2526 const char *vnamesrv
;
2527 const char *tftp_export
;
2528 const char *bootfile
;
2529 const char *smb_export
;
2530 const char *vsmbsrv
;
2535 vhost
= qemu_opt_get(opts
, "host");
2536 vhostname
= qemu_opt_get(opts
, "hostname");
2537 vdhcp_start
= qemu_opt_get(opts
, "dhcpstart");
2538 vnamesrv
= qemu_opt_get(opts
, "dns");
2539 tftp_export
= qemu_opt_get(opts
, "tftp");
2540 bootfile
= qemu_opt_get(opts
, "bootfile");
2541 smb_export
= qemu_opt_get(opts
, "smb");
2542 vsmbsrv
= qemu_opt_get(opts
, "smbserver");
2544 if (qemu_opt_get(opts
, "ip")) {
2545 const char *ip
= qemu_opt_get(opts
, "ip");
2546 int l
= strlen(ip
) + strlen("/24") + 1;
2548 vnet
= qemu_malloc(l
);
2550 /* emulate legacy ip= parameter */
2551 pstrcpy(vnet
, l
, ip
);
2552 pstrcat(vnet
, l
, "/24");
2555 if (qemu_opt_get(opts
, "net")) {
2559 vnet
= qemu_strdup(qemu_opt_get(opts
, "net"));
2562 if (qemu_opt_get(opts
, "restrict") &&
2563 qemu_opt_get(opts
, "restrict")[0] == 'y') {
2567 qemu_opt_foreach(opts
, net_init_slirp_configs
, NULL
, 0);
2569 ret
= net_slirp_init(vlan
, "user", name
, restricted
, vnet
, vhost
,
2570 vhostname
, tftp_export
, bootfile
, vdhcp_start
,
2571 vnamesrv
, smb_export
, vsmbsrv
);
2573 while (slirp_configs
) {
2574 config
= slirp_configs
;
2575 slirp_configs
= config
->next
;
2579 if (ret
!= -1 && vlan
) {
2580 vlan
->nb_host_devs
++;
2587 #endif /* CONFIG_SLIRP */
2590 static int net_init_tap_win32(QemuOpts
*opts
,
2597 ifname
= qemu_opt_get(opts
, "ifname");
2600 qemu_error("tap: no interface name\n");
2604 if (tap_win32_init(vlan
, "tap", name
, ifname
) == -1) {
2609 vlan
->nb_host_devs
++;
2614 #elif !defined(_AIX)
2615 static int net_init_tap(QemuOpts
*opts
,
2622 if (qemu_opt_get(opts
, "fd")) {
2625 if (qemu_opt_get(opts
, "ifname") ||
2626 qemu_opt_get(opts
, "script") ||
2627 qemu_opt_get(opts
, "downscript")) {
2628 qemu_error("ifname=, script= and downscript= is invalid with fd=\n");
2632 fd
= net_handle_fd_param(mon
, qemu_opt_get(opts
, "fd"));
2637 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
2639 s
= net_tap_fd_init(vlan
, "tap", name
, fd
);
2644 const char *ifname
, *script
, *downscript
;
2646 ifname
= qemu_opt_get(opts
, "ifname");
2647 script
= qemu_opt_get(opts
, "script");
2648 downscript
= qemu_opt_get(opts
, "downscript");
2651 script
= DEFAULT_NETWORK_SCRIPT
;
2654 downscript
= DEFAULT_NETWORK_DOWN_SCRIPT
;
2657 s
= net_tap_init(vlan
, "tap", name
, ifname
, script
, downscript
);
2664 if (tap_set_sndbuf(s
, opts
) < 0) {
2669 vlan
->nb_host_devs
++;
2676 static int net_init_socket(QemuOpts
*opts
,
2681 if (qemu_opt_get(opts
, "fd")) {
2684 if (qemu_opt_get(opts
, "listen") ||
2685 qemu_opt_get(opts
, "connect") ||
2686 qemu_opt_get(opts
, "mcast")) {
2687 qemu_error("listen=, connect= and mcast= is invalid with fd=\n");
2691 fd
= net_handle_fd_param(mon
, qemu_opt_get(opts
, "fd"));
2696 if (!net_socket_fd_init(vlan
, "socket", name
, fd
, 1)) {
2700 } else if (qemu_opt_get(opts
, "listen")) {
2703 if (qemu_opt_get(opts
, "fd") ||
2704 qemu_opt_get(opts
, "connect") ||
2705 qemu_opt_get(opts
, "mcast")) {
2706 qemu_error("fd=, connect= and mcast= is invalid with listen=\n");
2710 listen
= qemu_opt_get(opts
, "listen");
2712 if (net_socket_listen_init(vlan
, "socket", name
, listen
) == -1) {
2715 } else if (qemu_opt_get(opts
, "connect")) {
2716 const char *connect
;
2718 if (qemu_opt_get(opts
, "fd") ||
2719 qemu_opt_get(opts
, "listen") ||
2720 qemu_opt_get(opts
, "mcast")) {
2721 qemu_error("fd=, listen= and mcast= is invalid with connect=\n");
2725 connect
= qemu_opt_get(opts
, "connect");
2727 if (net_socket_connect_init(vlan
, "socket", name
, connect
) == -1) {
2730 } else if (qemu_opt_get(opts
, "mcast")) {
2733 if (qemu_opt_get(opts
, "fd") ||
2734 qemu_opt_get(opts
, "connect") ||
2735 qemu_opt_get(opts
, "listen")) {
2736 qemu_error("fd=, connect= and listen= is invalid with mcast=\n");
2740 mcast
= qemu_opt_get(opts
, "mcast");
2742 if (net_socket_mcast_init(vlan
, "socket", name
, mcast
) == -1) {
2746 qemu_error("-socket requires fd=, listen=, connect= or mcast=\n");
2751 vlan
->nb_host_devs
++;
2758 static int net_init_vde(QemuOpts
*opts
,
2767 sock
= qemu_opt_get(opts
, "sock");
2768 group
= qemu_opt_get(opts
, "group");
2770 port
= qemu_opt_get_number(opts
, "port", 0);
2771 mode
= qemu_opt_get_number(opts
, "mode", 0700);
2773 if (net_vde_init(vlan
, "vde", name
, sock
, port
, group
, mode
) == -1) {
2778 vlan
->nb_host_devs
++;
2785 static int net_init_dump(QemuOpts
*opts
,
2796 file
= qemu_opt_get(opts
, "file");
2798 snprintf(def_file
, sizeof(def_file
), "qemu-vlan%d.pcap", vlan
->id
);
2802 len
= qemu_opt_get_size(opts
, "len", 65536);
2804 return net_dump_init(vlan
, "dump", name
, file
, len
);
2807 #define NET_COMMON_PARAMS_DESC \
2810 .type = QEMU_OPT_STRING, \
2811 .help = "net client type (nic, tap etc.)", \
2814 .type = QEMU_OPT_NUMBER, \
2815 .help = "vlan number", \
2818 .type = QEMU_OPT_STRING, \
2819 .help = "identifier for monitor commands", \
2822 typedef int (*net_client_init_func
)(QemuOpts
*opts
,
2827 /* magic number, but compiler will warn if too small */
2828 #define NET_MAX_DESC 20
2832 net_client_init_func init
;
2833 QemuOptDesc desc
[NET_MAX_DESC
];
2834 } net_client_types
[] = {
2838 NET_COMMON_PARAMS_DESC
,
2839 { /* end of list */ }
2843 .init
= net_init_nic
,
2845 NET_COMMON_PARAMS_DESC
,
2848 .type
= QEMU_OPT_STRING
,
2849 .help
= "id of -netdev to connect to",
2853 .type
= QEMU_OPT_STRING
,
2854 .help
= "MAC address",
2857 .type
= QEMU_OPT_STRING
,
2858 .help
= "device model (e1000, rtl8139, virtio etc.)",
2861 .type
= QEMU_OPT_STRING
,
2862 .help
= "PCI device address",
2865 .type
= QEMU_OPT_NUMBER
,
2866 .help
= "number of MSI-x vectors, 0 to disable MSI-X",
2868 { /* end of list */ }
2873 .init
= net_init_slirp
,
2875 NET_COMMON_PARAMS_DESC
,
2878 .type
= QEMU_OPT_STRING
,
2879 .help
= "client hostname reported by the builtin DHCP server",
2882 .type
= QEMU_OPT_STRING
,
2883 .help
= "isolate the guest from the host (y|yes|n|no)",
2886 .type
= QEMU_OPT_STRING
,
2887 .help
= "legacy parameter, use net= instead",
2890 .type
= QEMU_OPT_STRING
,
2891 .help
= "IP address and optional netmask",
2894 .type
= QEMU_OPT_STRING
,
2895 .help
= "guest-visible address of the host",
2898 .type
= QEMU_OPT_STRING
,
2899 .help
= "root directory of the built-in TFTP server",
2902 .type
= QEMU_OPT_STRING
,
2903 .help
= "BOOTP filename, for use with tftp=",
2905 .name
= "dhcpstart",
2906 .type
= QEMU_OPT_STRING
,
2907 .help
= "the first of the 16 IPs the built-in DHCP server can assign",
2910 .type
= QEMU_OPT_STRING
,
2911 .help
= "guest-visible address of the virtual nameserver",
2914 .type
= QEMU_OPT_STRING
,
2915 .help
= "root directory of the built-in SMB server",
2917 .name
= "smbserver",
2918 .type
= QEMU_OPT_STRING
,
2919 .help
= "IP address of the built-in SMB server",
2922 .type
= QEMU_OPT_STRING
,
2923 .help
= "guest port number to forward incoming TCP or UDP connections",
2926 .type
= QEMU_OPT_STRING
,
2927 .help
= "IP address and port to forward guest TCP connections",
2929 { /* end of list */ }
2935 .init
= net_init_tap_win32
,
2937 NET_COMMON_PARAMS_DESC
,
2940 .type
= QEMU_OPT_STRING
,
2941 .help
= "interface name",
2943 { /* end of list */ }
2945 #elif !defined(_AIX)
2948 .init
= net_init_tap
,
2950 NET_COMMON_PARAMS_DESC
,
2953 .type
= QEMU_OPT_STRING
,
2954 .help
= "file descriptor of an already opened tap",
2957 .type
= QEMU_OPT_STRING
,
2958 .help
= "interface name",
2961 .type
= QEMU_OPT_STRING
,
2962 .help
= "script to initialize the interface",
2964 .name
= "downscript",
2965 .type
= QEMU_OPT_STRING
,
2966 .help
= "script to shut down the interface",
2970 .type
= QEMU_OPT_SIZE
,
2971 .help
= "send buffer limit"
2974 { /* end of list */ }
2979 .init
= net_init_socket
,
2981 NET_COMMON_PARAMS_DESC
,
2984 .type
= QEMU_OPT_STRING
,
2985 .help
= "file descriptor of an already opened socket",
2988 .type
= QEMU_OPT_STRING
,
2989 .help
= "port number, and optional hostname, to listen on",
2992 .type
= QEMU_OPT_STRING
,
2993 .help
= "port number, and optional hostname, to connect to",
2996 .type
= QEMU_OPT_STRING
,
2997 .help
= "UDP multicast address and port number",
2999 { /* end of list */ }
3004 .init
= net_init_vde
,
3006 NET_COMMON_PARAMS_DESC
,
3009 .type
= QEMU_OPT_STRING
,
3010 .help
= "socket path",
3013 .type
= QEMU_OPT_NUMBER
,
3014 .help
= "port number",
3017 .type
= QEMU_OPT_STRING
,
3018 .help
= "group owner of socket",
3021 .type
= QEMU_OPT_NUMBER
,
3022 .help
= "permissions for socket",
3024 { /* end of list */ }
3029 .init
= net_init_dump
,
3031 NET_COMMON_PARAMS_DESC
,
3034 .type
= QEMU_OPT_SIZE
,
3035 .help
= "per-packet size limit (64k default)",
3038 .type
= QEMU_OPT_STRING
,
3039 .help
= "dump file path (default is qemu-vlan0.pcap)",
3041 { /* end of list */ }
3044 { /* end of list */ }
3047 int net_client_init(Monitor
*mon
, QemuOpts
*opts
, int is_netdev
)
3053 type
= qemu_opt_get(opts
, "type");
3055 qemu_error("No type specified for -net\n");
3060 if (strcmp(type
, "tap") != 0 &&
3062 strcmp(type
, "user") != 0 &&
3065 strcmp(type
, "vde") != 0 &&
3067 strcmp(type
, "socket") != 0) {
3068 qemu_error("The '%s' network backend type is not valid with -netdev\n",
3073 if (qemu_opt_get(opts
, "vlan")) {
3074 qemu_error("The 'vlan' parameter is not valid with -netdev\n");
3077 if (qemu_opt_get(opts
, "name")) {
3078 qemu_error("The 'name' parameter is not valid with -netdev\n");
3081 if (!qemu_opts_id(opts
)) {
3082 qemu_error("The id= parameter is required with -netdev\n");
3087 name
= qemu_opts_id(opts
);
3089 name
= qemu_opt_get(opts
, "name");
3092 for (i
= 0; net_client_types
[i
].type
!= NULL
; i
++) {
3093 if (!strcmp(net_client_types
[i
].type
, type
)) {
3094 VLANState
*vlan
= NULL
;
3096 if (qemu_opts_validate(opts
, &net_client_types
[i
].desc
[0]) == -1) {
3100 /* Do not add to a vlan if it's a -netdev or a nic with a
3101 * netdev= parameter. */
3103 (strcmp(type
, "nic") == 0 && qemu_opt_get(opts
, "netdev")))) {
3104 vlan
= qemu_find_vlan(qemu_opt_get_number(opts
, "vlan", 0), 1);
3107 if (net_client_types
[i
].init
) {
3108 return net_client_types
[i
].init(opts
, mon
, name
, vlan
);
3115 qemu_error("Invalid -net type '%s'\n", type
);
3119 void net_client_uninit(NICInfo
*nd
)
3122 nd
->vlan
->nb_guest_devs
--;
3126 qemu_free(nd
->model
);
3127 qemu_free(nd
->name
);
3128 qemu_free(nd
->devaddr
);
3133 static int net_host_check_device(const char *device
)
3136 const char *valid_param_list
[] = { "tap", "socket", "dump"
3144 for (i
= 0; i
< sizeof(valid_param_list
) / sizeof(char *); i
++) {
3145 if (!strncmp(valid_param_list
[i
], device
,
3146 strlen(valid_param_list
[i
])))
3153 void net_host_device_add(Monitor
*mon
, const QDict
*qdict
)
3155 const char *device
= qdict_get_str(qdict
, "device");
3156 const char *opts_str
= qdict_get_try_str(qdict
, "opts");
3159 if (!net_host_check_device(device
)) {
3160 monitor_printf(mon
, "invalid host network device %s\n", device
);
3164 opts
= qemu_opts_parse(&qemu_net_opts
, opts_str
? opts_str
: "", NULL
);
3166 monitor_printf(mon
, "parsing network options '%s' failed\n",
3167 opts_str
? opts_str
: "");
3171 qemu_opt_set(opts
, "type", device
);
3173 if (net_client_init(mon
, opts
, 0) < 0) {
3174 monitor_printf(mon
, "adding host network device %s failed\n", device
);
3178 void net_host_device_remove(Monitor
*mon
, const QDict
*qdict
)
3180 VLANClientState
*vc
;
3181 int vlan_id
= qdict_get_int(qdict
, "vlan_id");
3182 const char *device
= qdict_get_str(qdict
, "device");
3184 vc
= qemu_find_vlan_client_by_name(mon
, vlan_id
, device
);
3188 if (!net_host_check_device(vc
->model
)) {
3189 monitor_printf(mon
, "invalid host network device %s\n", device
);
3192 qemu_del_vlan_client(vc
);
3195 void net_set_boot_mask(int net_boot_mask
)
3199 /* Only the first four NICs may be bootable */
3200 net_boot_mask
= net_boot_mask
& 0xF;
3202 for (i
= 0; i
< nb_nics
; i
++) {
3203 if (net_boot_mask
& (1 << i
)) {
3204 nd_table
[i
].bootable
= 1;
3205 net_boot_mask
&= ~(1 << i
);
3209 if (net_boot_mask
) {
3210 fprintf(stderr
, "Cannot boot from non-existent NIC\n");
3215 void do_info_network(Monitor
*mon
)
3219 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
3220 VLANClientState
*vc
;
3222 monitor_printf(mon
, "VLAN %d devices:\n", vlan
->id
);
3224 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
3225 monitor_printf(mon
, " %s: %s\n", vc
->name
, vc
->info_str
);
3230 void do_set_link(Monitor
*mon
, const QDict
*qdict
)
3233 VLANClientState
*vc
= NULL
;
3234 const char *name
= qdict_get_str(qdict
, "name");
3235 const char *up_or_down
= qdict_get_str(qdict
, "up_or_down");
3237 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
3238 QTAILQ_FOREACH(vc
, &vlan
->clients
, next
) {
3239 if (strcmp(vc
->name
, name
) == 0) {
3247 monitor_printf(mon
, "could not find network device '%s'\n", name
);
3251 if (strcmp(up_or_down
, "up") == 0)
3253 else if (strcmp(up_or_down
, "down") == 0)
3256 monitor_printf(mon
, "invalid link status '%s'; only 'up' or 'down' "
3257 "valid\n", up_or_down
);
3259 if (vc
->link_status_changed
)
3260 vc
->link_status_changed(vc
);
3263 void net_cleanup(void)
3266 VLANClientState
*vc
, *next_vc
;
3268 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
3269 QTAILQ_FOREACH_SAFE(vc
, &vlan
->clients
, next
, next_vc
) {
3270 qemu_del_vlan_client(vc
);
3274 QTAILQ_FOREACH_SAFE(vc
, &non_vlan_clients
, next
, next_vc
) {
3275 qemu_del_vlan_client(vc
);
3279 static void net_check_clients(void)
3283 QTAILQ_FOREACH(vlan
, &vlans
, next
) {
3284 if (vlan
->nb_guest_devs
== 0 && vlan
->nb_host_devs
== 0)
3286 if (vlan
->nb_guest_devs
== 0)
3287 fprintf(stderr
, "Warning: vlan %d with no nics\n", vlan
->id
);
3288 if (vlan
->nb_host_devs
== 0)
3290 "Warning: vlan %d is not connected to host network\n",
3295 static int net_init_client(QemuOpts
*opts
, void *dummy
)
3297 return net_client_init(NULL
, opts
, 0);
3300 static int net_init_netdev(QemuOpts
*opts
, void *dummy
)
3302 return net_client_init(NULL
, opts
, 1);
3305 int net_init_clients(void)
3307 if (QTAILQ_EMPTY(&qemu_net_opts
.head
)) {
3308 /* if no clients, we use a default config */
3309 qemu_opts_set(&qemu_net_opts
, NULL
, "type", "nic");
3311 qemu_opts_set(&qemu_net_opts
, NULL
, "type", "user");
3315 QTAILQ_INIT(&vlans
);
3316 QTAILQ_INIT(&non_vlan_clients
);
3318 if (qemu_opts_foreach(&qemu_netdev_opts
, net_init_netdev
, NULL
, 1) == -1)
3321 if (qemu_opts_foreach(&qemu_net_opts
, net_init_client
, NULL
, 1) == -1) {
3325 net_check_clients();
3330 int net_client_parse(QemuOptsList
*opts_list
, const char *optarg
)
3332 #if defined(CONFIG_SLIRP)
3333 /* handle legacy -net channel,port:chr */
3334 if (!strcmp(opts_list
->name
, "net") &&
3335 !strncmp(optarg
, "channel,", strlen("channel,"))) {
3338 optarg
+= strlen("channel,");
3340 if (QTAILQ_EMPTY(&slirp_stacks
)) {
3341 struct slirp_config_str
*config
;
3343 config
= qemu_malloc(sizeof(*config
));
3344 pstrcpy(config
->str
, sizeof(config
->str
), optarg
);
3345 config
->flags
= SLIRP_CFG_LEGACY
;
3346 config
->next
= slirp_configs
;
3347 slirp_configs
= config
;
3350 ret
= slirp_guestfwd(QTAILQ_FIRST(&slirp_stacks
), optarg
, 1);
3356 if (!qemu_opts_parse(opts_list
, optarg
, "type")) {