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"
114 #include "slirp/libslirp.h"
115 #include "qemu-queue.h"
118 static VLANState
*first_vlan
;
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 for (vlan
= first_vlan
; vlan
; vlan
= vlan
->next
) {
292 for (vc
= vlan
->first_client
; vc
; vc
= vc
->next
)
293 if (vc
!= vc1
&& strcmp(vc
->model
, model
) == 0)
297 snprintf(buf
, sizeof(buf
), "%s.%d", model
, id
);
299 return qemu_strdup(buf
);
302 VLANClientState
*qemu_new_vlan_client(VLANState
*vlan
,
305 NetCanReceive
*can_receive
,
307 NetReceiveIOV
*receive_iov
,
311 VLANClientState
*vc
, **pvc
;
312 vc
= qemu_mallocz(sizeof(VLANClientState
));
313 vc
->model
= qemu_strdup(model
);
315 vc
->name
= qemu_strdup(name
);
317 vc
->name
= assign_name(vc
, model
);
318 vc
->can_receive
= can_receive
;
319 vc
->receive
= receive
;
320 vc
->receive_iov
= receive_iov
;
321 vc
->cleanup
= cleanup
;
326 pvc
= &vlan
->first_client
;
333 void qemu_del_vlan_client(VLANClientState
*vc
)
335 VLANClientState
**pvc
= &vc
->vlan
->first_client
;
344 qemu_free(vc
->model
);
351 VLANClientState
*qemu_find_vlan_client(VLANState
*vlan
, void *opaque
)
353 VLANClientState
**pvc
= &vlan
->first_client
;
356 if ((*pvc
)->opaque
== opaque
)
364 static VLANClientState
*
365 qemu_find_vlan_client_by_name(Monitor
*mon
, int vlan_id
,
366 const char *client_str
)
371 vlan
= qemu_find_vlan(vlan_id
, 0);
373 monitor_printf(mon
, "unknown VLAN %d\n", vlan_id
);
377 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
378 if (!strcmp(vc
->name
, client_str
)) {
383 monitor_printf(mon
, "can't find device %s on VLAN %d\n",
384 client_str
, vlan_id
);
390 int qemu_can_send_packet(VLANClientState
*sender
)
392 VLANState
*vlan
= sender
->vlan
;
395 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
400 /* no can_receive() handler, they can always receive */
401 if (!vc
->can_receive
|| vc
->can_receive(vc
)) {
409 qemu_deliver_packet(VLANClientState
*sender
, const uint8_t *buf
, int size
)
414 sender
->vlan
->delivering
= 1;
416 for (vc
= sender
->vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
428 len
= vc
->receive(vc
, buf
, size
);
430 ret
= (ret
>= 0) ? ret
: len
;
433 sender
->vlan
->delivering
= 0;
438 void qemu_purge_queued_packets(VLANClientState
*vc
)
440 VLANPacket
*packet
, *next
;
442 QTAILQ_FOREACH_SAFE(packet
, &vc
->vlan
->send_queue
, entry
, next
) {
443 if (packet
->sender
== vc
) {
444 QTAILQ_REMOVE(&vc
->vlan
->send_queue
, packet
, entry
);
450 void qemu_flush_queued_packets(VLANClientState
*vc
)
452 while (!QTAILQ_EMPTY(&vc
->vlan
->send_queue
)) {
456 packet
= QTAILQ_FIRST(&vc
->vlan
->send_queue
);
457 QTAILQ_REMOVE(&vc
->vlan
->send_queue
, packet
, entry
);
459 ret
= qemu_deliver_packet(packet
->sender
, packet
->data
, packet
->size
);
460 if (ret
== 0 && packet
->sent_cb
!= NULL
) {
461 QTAILQ_INSERT_HEAD(&vc
->vlan
->send_queue
, packet
, entry
);
466 packet
->sent_cb(packet
->sender
, ret
);
472 static void qemu_enqueue_packet(VLANClientState
*sender
,
473 const uint8_t *buf
, int size
,
474 NetPacketSent
*sent_cb
)
478 packet
= qemu_malloc(sizeof(VLANPacket
) + size
);
479 packet
->sender
= sender
;
481 packet
->sent_cb
= sent_cb
;
482 memcpy(packet
->data
, buf
, size
);
484 QTAILQ_INSERT_TAIL(&sender
->vlan
->send_queue
, packet
, entry
);
487 ssize_t
qemu_send_packet_async(VLANClientState
*sender
,
488 const uint8_t *buf
, int size
,
489 NetPacketSent
*sent_cb
)
493 if (sender
->link_down
) {
498 printf("vlan %d send:\n", sender
->vlan
->id
);
499 hex_dump(stdout
, buf
, size
);
502 if (sender
->vlan
->delivering
) {
503 qemu_enqueue_packet(sender
, buf
, size
, NULL
);
507 ret
= qemu_deliver_packet(sender
, buf
, size
);
508 if (ret
== 0 && sent_cb
!= NULL
) {
509 qemu_enqueue_packet(sender
, buf
, size
, sent_cb
);
513 qemu_flush_queued_packets(sender
);
518 void qemu_send_packet(VLANClientState
*vc
, const uint8_t *buf
, int size
)
520 qemu_send_packet_async(vc
, buf
, size
, NULL
);
523 static ssize_t
vc_sendv_compat(VLANClientState
*vc
, const struct iovec
*iov
,
526 uint8_t buffer
[4096];
530 for (i
= 0; i
< iovcnt
; i
++) {
533 len
= MIN(sizeof(buffer
) - offset
, iov
[i
].iov_len
);
534 memcpy(buffer
+ offset
, iov
[i
].iov_base
, len
);
538 return vc
->receive(vc
, buffer
, offset
);
541 static ssize_t
calc_iov_length(const struct iovec
*iov
, int iovcnt
)
546 for (i
= 0; i
< iovcnt
; i
++)
547 offset
+= iov
[i
].iov_len
;
551 static int qemu_deliver_packet_iov(VLANClientState
*sender
,
552 const struct iovec
*iov
, int iovcnt
)
557 sender
->vlan
->delivering
= 1;
559 for (vc
= sender
->vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
567 ret
= calc_iov_length(iov
, iovcnt
);
571 if (vc
->receive_iov
) {
572 len
= vc
->receive_iov(vc
, iov
, iovcnt
);
574 len
= vc_sendv_compat(vc
, iov
, iovcnt
);
577 ret
= (ret
>= 0) ? ret
: len
;
580 sender
->vlan
->delivering
= 0;
585 static ssize_t
qemu_enqueue_packet_iov(VLANClientState
*sender
,
586 const struct iovec
*iov
, int iovcnt
,
587 NetPacketSent
*sent_cb
)
593 max_len
= calc_iov_length(iov
, iovcnt
);
595 packet
= qemu_malloc(sizeof(VLANPacket
) + max_len
);
596 packet
->sender
= sender
;
597 packet
->sent_cb
= sent_cb
;
600 for (i
= 0; i
< iovcnt
; i
++) {
601 size_t len
= iov
[i
].iov_len
;
603 memcpy(packet
->data
+ packet
->size
, iov
[i
].iov_base
, len
);
607 QTAILQ_INSERT_TAIL(&sender
->vlan
->send_queue
, packet
, entry
);
612 ssize_t
qemu_sendv_packet_async(VLANClientState
*sender
,
613 const struct iovec
*iov
, int iovcnt
,
614 NetPacketSent
*sent_cb
)
618 if (sender
->link_down
) {
619 return calc_iov_length(iov
, iovcnt
);
622 if (sender
->vlan
->delivering
) {
623 return qemu_enqueue_packet_iov(sender
, iov
, iovcnt
, NULL
);
626 ret
= qemu_deliver_packet_iov(sender
, iov
, iovcnt
);
627 if (ret
== 0 && sent_cb
!= NULL
) {
628 qemu_enqueue_packet_iov(sender
, iov
, iovcnt
, sent_cb
);
632 qemu_flush_queued_packets(sender
);
638 qemu_sendv_packet(VLANClientState
*vc
, const struct iovec
*iov
, int iovcnt
)
640 return qemu_sendv_packet_async(vc
, iov
, iovcnt
, NULL
);
643 #if defined(CONFIG_SLIRP)
645 /* slirp network adapter */
647 #define SLIRP_CFG_HOSTFWD 1
648 #define SLIRP_CFG_LEGACY 2
650 struct slirp_config_str
{
651 struct slirp_config_str
*next
;
657 typedef struct SlirpState
{
658 QTAILQ_ENTRY(SlirpState
) entry
;
666 static struct slirp_config_str
*slirp_configs
;
667 const char *legacy_tftp_prefix
;
668 const char *legacy_bootp_filename
;
669 static QTAILQ_HEAD(slirp_stacks
, SlirpState
) slirp_stacks
=
670 QTAILQ_HEAD_INITIALIZER(slirp_stacks
);
672 static int slirp_hostfwd(SlirpState
*s
, const char *redir_str
,
674 static int slirp_guestfwd(SlirpState
*s
, const char *config_str
,
678 static const char *legacy_smb_export
;
680 static int slirp_smb(SlirpState
*s
, const char *exported_dir
,
681 struct in_addr vserver_addr
);
682 static void slirp_smb_cleanup(SlirpState
*s
);
684 static inline void slirp_smb_cleanup(SlirpState
*s
) { }
687 int slirp_can_output(void *opaque
)
689 SlirpState
*s
= opaque
;
691 return qemu_can_send_packet(s
->vc
);
694 void slirp_output(void *opaque
, const uint8_t *pkt
, int pkt_len
)
696 SlirpState
*s
= opaque
;
699 printf("slirp output:\n");
700 hex_dump(stdout
, pkt
, pkt_len
);
702 qemu_send_packet(s
->vc
, pkt
, pkt_len
);
705 static ssize_t
slirp_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
707 SlirpState
*s
= vc
->opaque
;
710 printf("slirp input:\n");
711 hex_dump(stdout
, buf
, size
);
713 slirp_input(s
->slirp
, buf
, size
);
717 static void net_slirp_cleanup(VLANClientState
*vc
)
719 SlirpState
*s
= vc
->opaque
;
721 slirp_cleanup(s
->slirp
);
722 slirp_smb_cleanup(s
);
723 QTAILQ_REMOVE(&slirp_stacks
, s
, entry
);
727 static int net_slirp_init(VLANState
*vlan
, const char *model
,
728 const char *name
, int restricted
,
729 const char *vnetwork
, const char *vhost
,
730 const char *vhostname
, const char *tftp_export
,
731 const char *bootfile
, const char *vdhcp_start
,
732 const char *vnameserver
, const char *smb_export
,
733 const char *vsmbserver
)
735 /* default settings according to historic slirp */
736 struct in_addr net
= { .s_addr
= htonl(0x0a000200) }; /* 10.0.2.0 */
737 struct in_addr mask
= { .s_addr
= htonl(0xffffff00) }; /* 255.255.255.0 */
738 struct in_addr host
= { .s_addr
= htonl(0x0a000202) }; /* 10.0.2.2 */
739 struct in_addr dhcp
= { .s_addr
= htonl(0x0a00020f) }; /* 10.0.2.15 */
740 struct in_addr dns
= { .s_addr
= htonl(0x0a000203) }; /* 10.0.2.3 */
742 struct in_addr smbsrv
= { .s_addr
= 0 };
749 struct slirp_config_str
*config
;
752 tftp_export
= legacy_tftp_prefix
;
755 bootfile
= legacy_bootp_filename
;
759 if (get_str_sep(buf
, sizeof(buf
), &vnetwork
, '/') < 0) {
760 if (!inet_aton(vnetwork
, &net
)) {
763 addr
= ntohl(net
.s_addr
);
764 if (!(addr
& 0x80000000)) {
765 mask
.s_addr
= htonl(0xff000000); /* class A */
766 } else if ((addr
& 0xfff00000) == 0xac100000) {
767 mask
.s_addr
= htonl(0xfff00000); /* priv. 172.16.0.0/12 */
768 } else if ((addr
& 0xc0000000) == 0x80000000) {
769 mask
.s_addr
= htonl(0xffff0000); /* class B */
770 } else if ((addr
& 0xffff0000) == 0xc0a80000) {
771 mask
.s_addr
= htonl(0xffff0000); /* priv. 192.168.0.0/16 */
772 } else if ((addr
& 0xffff0000) == 0xc6120000) {
773 mask
.s_addr
= htonl(0xfffe0000); /* tests 198.18.0.0/15 */
774 } else if ((addr
& 0xe0000000) == 0xe0000000) {
775 mask
.s_addr
= htonl(0xffffff00); /* class C */
777 mask
.s_addr
= htonl(0xfffffff0); /* multicast/reserved */
780 if (!inet_aton(buf
, &net
)) {
783 shift
= strtol(vnetwork
, &end
, 10);
785 if (!inet_aton(vnetwork
, &mask
)) {
788 } else if (shift
< 4 || shift
> 32) {
791 mask
.s_addr
= htonl(0xffffffff << (32 - shift
));
794 net
.s_addr
&= mask
.s_addr
;
795 host
.s_addr
= net
.s_addr
| (htonl(0x0202) & ~mask
.s_addr
);
796 dhcp
.s_addr
= net
.s_addr
| (htonl(0x020f) & ~mask
.s_addr
);
797 dns
.s_addr
= net
.s_addr
| (htonl(0x0203) & ~mask
.s_addr
);
800 if (vhost
&& !inet_aton(vhost
, &host
)) {
803 if ((host
.s_addr
& mask
.s_addr
) != net
.s_addr
) {
807 if (vdhcp_start
&& !inet_aton(vdhcp_start
, &dhcp
)) {
810 if ((dhcp
.s_addr
& mask
.s_addr
) != net
.s_addr
||
811 dhcp
.s_addr
== host
.s_addr
|| dhcp
.s_addr
== dns
.s_addr
) {
815 if (vnameserver
&& !inet_aton(vnameserver
, &dns
)) {
818 if ((dns
.s_addr
& mask
.s_addr
) != net
.s_addr
||
819 dns
.s_addr
== host
.s_addr
) {
824 if (vsmbserver
&& !inet_aton(vsmbserver
, &smbsrv
)) {
829 s
= qemu_mallocz(sizeof(SlirpState
));
830 s
->slirp
= slirp_init(restricted
, net
, mask
, host
, vhostname
,
831 tftp_export
, bootfile
, dhcp
, dns
, s
);
832 QTAILQ_INSERT_TAIL(&slirp_stacks
, s
, entry
);
834 for (config
= slirp_configs
; config
; config
= config
->next
) {
835 if (config
->flags
& SLIRP_CFG_HOSTFWD
) {
836 if (slirp_hostfwd(s
, config
->str
,
837 config
->flags
& SLIRP_CFG_LEGACY
) < 0)
840 if (slirp_guestfwd(s
, config
->str
,
841 config
->flags
& SLIRP_CFG_LEGACY
) < 0)
847 smb_export
= legacy_smb_export
;
850 if (slirp_smb(s
, smb_export
, smbsrv
) < 0)
855 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, slirp_receive
, NULL
,
856 net_slirp_cleanup
, s
);
857 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
858 "net=%s, restricted=%c", inet_ntoa(net
), restricted
? 'y' : 'n');
862 static SlirpState
*slirp_lookup(Monitor
*mon
, const char *vlan
,
868 vc
= qemu_find_vlan_client_by_name(mon
, strtol(vlan
, NULL
, 0), stack
);
872 if (strcmp(vc
->model
, "user")) {
873 monitor_printf(mon
, "invalid device specified\n");
878 if (QTAILQ_EMPTY(&slirp_stacks
)) {
879 monitor_printf(mon
, "user mode network stack not in use\n");
882 return QTAILQ_FIRST(&slirp_stacks
);
886 void net_slirp_hostfwd_remove(Monitor
*mon
, const QDict
*qdict
)
888 struct in_addr host_addr
= { .s_addr
= INADDR_ANY
};
891 const char *src_str
, *p
;
895 const char *arg1
= qdict_get_str(qdict
, "arg1");
896 const char *arg2
= qdict_get_try_str(qdict
, "arg2");
897 const char *arg3
= qdict_get_try_str(qdict
, "arg3");
900 s
= slirp_lookup(mon
, arg1
, arg2
);
903 s
= slirp_lookup(mon
, NULL
, NULL
);
910 if (!src_str
|| !src_str
[0])
914 get_str_sep(buf
, sizeof(buf
), &p
, ':');
916 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
918 } else if (!strcmp(buf
, "udp")) {
924 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
927 if (buf
[0] != '\0' && !inet_aton(buf
, &host_addr
)) {
933 err
= slirp_remove_hostfwd(QTAILQ_FIRST(&slirp_stacks
)->slirp
, is_udp
,
934 host_addr
, host_port
);
936 monitor_printf(mon
, "host forwarding rule for %s %s\n", src_str
,
937 err
? "removed" : "not found");
941 monitor_printf(mon
, "invalid format\n");
944 static int slirp_hostfwd(SlirpState
*s
, const char *redir_str
,
947 struct in_addr host_addr
= { .s_addr
= INADDR_ANY
};
948 struct in_addr guest_addr
= { .s_addr
= 0 };
949 int host_port
, guest_port
;
956 if (!p
|| get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
959 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
961 } else if (!strcmp(buf
, "udp")) {
967 if (!legacy_format
) {
968 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
971 if (buf
[0] != '\0' && !inet_aton(buf
, &host_addr
)) {
976 if (get_str_sep(buf
, sizeof(buf
), &p
, legacy_format
? ':' : '-') < 0) {
979 host_port
= strtol(buf
, &end
, 0);
980 if (*end
!= '\0' || host_port
< 1 || host_port
> 65535) {
984 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
987 if (buf
[0] != '\0' && !inet_aton(buf
, &guest_addr
)) {
991 guest_port
= strtol(p
, &end
, 0);
992 if (*end
!= '\0' || guest_port
< 1 || guest_port
> 65535) {
996 if (slirp_add_hostfwd(s
->slirp
, is_udp
, host_addr
, host_port
, guest_addr
,
998 qemu_error("could not set up host forwarding rule '%s'\n",
1005 qemu_error("invalid host forwarding rule '%s'\n", redir_str
);
1009 void net_slirp_hostfwd_add(Monitor
*mon
, const QDict
*qdict
)
1011 const char *redir_str
;
1013 const char *arg1
= qdict_get_str(qdict
, "arg1");
1014 const char *arg2
= qdict_get_try_str(qdict
, "arg2");
1015 const char *arg3
= qdict_get_try_str(qdict
, "arg3");
1018 s
= slirp_lookup(mon
, arg1
, arg2
);
1021 s
= slirp_lookup(mon
, NULL
, NULL
);
1025 slirp_hostfwd(s
, redir_str
, 0);
1030 int net_slirp_redir(const char *redir_str
)
1032 struct slirp_config_str
*config
;
1034 if (QTAILQ_EMPTY(&slirp_stacks
)) {
1035 config
= qemu_malloc(sizeof(*config
));
1036 pstrcpy(config
->str
, sizeof(config
->str
), redir_str
);
1037 config
->flags
= SLIRP_CFG_HOSTFWD
| SLIRP_CFG_LEGACY
;
1038 config
->next
= slirp_configs
;
1039 slirp_configs
= config
;
1043 return slirp_hostfwd(QTAILQ_FIRST(&slirp_stacks
), redir_str
, 1);
1048 /* automatic user mode samba server configuration */
1049 static void slirp_smb_cleanup(SlirpState
*s
)
1053 if (s
->smb_dir
[0] != '\0') {
1054 snprintf(cmd
, sizeof(cmd
), "rm -rf %s", s
->smb_dir
);
1056 s
->smb_dir
[0] = '\0';
1060 static int slirp_smb(SlirpState
* s
, const char *exported_dir
,
1061 struct in_addr vserver_addr
)
1063 static int instance
;
1065 char smb_cmdline
[128];
1068 snprintf(s
->smb_dir
, sizeof(s
->smb_dir
), "/tmp/qemu-smb.%ld-%d",
1069 (long)getpid(), instance
++);
1070 if (mkdir(s
->smb_dir
, 0700) < 0) {
1071 qemu_error("could not create samba server dir '%s'\n", s
->smb_dir
);
1074 snprintf(smb_conf
, sizeof(smb_conf
), "%s/%s", s
->smb_dir
, "smb.conf");
1076 f
= fopen(smb_conf
, "w");
1078 slirp_smb_cleanup(s
);
1079 qemu_error("could not create samba server configuration file '%s'\n",
1087 "socket address=127.0.0.1\n"
1088 "pid directory=%s\n"
1089 "lock directory=%s\n"
1090 "log file=%s/log.smbd\n"
1091 "smb passwd file=%s/smbpasswd\n"
1092 "security = share\n"
1106 snprintf(smb_cmdline
, sizeof(smb_cmdline
), "%s -s %s",
1107 SMBD_COMMAND
, smb_conf
);
1109 if (slirp_add_exec(s
->slirp
, 0, smb_cmdline
, &vserver_addr
, 139) < 0) {
1110 slirp_smb_cleanup(s
);
1111 qemu_error("conflicting/invalid smbserver address\n");
1117 /* automatic user mode samba server configuration (legacy interface) */
1118 int net_slirp_smb(const char *exported_dir
)
1120 struct in_addr vserver_addr
= { .s_addr
= 0 };
1122 if (legacy_smb_export
) {
1123 fprintf(stderr
, "-smb given twice\n");
1126 legacy_smb_export
= exported_dir
;
1127 if (!QTAILQ_EMPTY(&slirp_stacks
)) {
1128 return slirp_smb(QTAILQ_FIRST(&slirp_stacks
), exported_dir
,
1134 #endif /* !defined(_WIN32) */
1137 CharDriverState
*hd
;
1138 struct in_addr server
;
1143 static int guestfwd_can_read(void *opaque
)
1145 struct GuestFwd
*fwd
= opaque
;
1146 return slirp_socket_can_recv(fwd
->slirp
, fwd
->server
, fwd
->port
);
1149 static void guestfwd_read(void *opaque
, const uint8_t *buf
, int size
)
1151 struct GuestFwd
*fwd
= opaque
;
1152 slirp_socket_recv(fwd
->slirp
, fwd
->server
, fwd
->port
, buf
, size
);
1155 static int slirp_guestfwd(SlirpState
*s
, const char *config_str
,
1158 struct in_addr server
= { .s_addr
= 0 };
1159 struct GuestFwd
*fwd
;
1166 if (legacy_format
) {
1167 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1171 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1174 if (strcmp(buf
, "tcp") && buf
[0] != '\0') {
1177 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1180 if (buf
[0] != '\0' && !inet_aton(buf
, &server
)) {
1183 if (get_str_sep(buf
, sizeof(buf
), &p
, '-') < 0) {
1187 port
= strtol(buf
, &end
, 10);
1188 if (*end
!= '\0' || port
< 1 || port
> 65535) {
1192 fwd
= qemu_malloc(sizeof(struct GuestFwd
));
1193 snprintf(buf
, sizeof(buf
), "guestfwd.tcp:%d", port
);
1194 fwd
->hd
= qemu_chr_open(buf
, p
, NULL
);
1196 qemu_error("could not open guest forwarding device '%s'\n", buf
);
1201 if (slirp_add_exec(s
->slirp
, 3, fwd
->hd
, &server
, port
) < 0) {
1202 qemu_error("conflicting/invalid host:port in guest forwarding "
1203 "rule '%s'\n", config_str
);
1207 fwd
->server
= server
;
1209 fwd
->slirp
= s
->slirp
;
1211 qemu_chr_add_handlers(fwd
->hd
, guestfwd_can_read
, guestfwd_read
,
1216 qemu_error("invalid guest forwarding rule '%s'\n", config_str
);
1220 void do_info_usernet(Monitor
*mon
)
1224 QTAILQ_FOREACH(s
, &slirp_stacks
, entry
) {
1225 monitor_printf(mon
, "VLAN %d (%s):\n", s
->vc
->vlan
->id
, s
->vc
->name
);
1226 slirp_connection_info(s
->slirp
, mon
);
1230 #endif /* CONFIG_SLIRP */
1232 #if !defined(_WIN32)
1234 typedef struct TAPState
{
1235 VLANClientState
*vc
;
1237 char down_script
[1024];
1238 char down_script_arg
[128];
1240 unsigned int read_poll
: 1;
1241 unsigned int write_poll
: 1;
1244 static int launch_script(const char *setup_script
, const char *ifname
, int fd
);
1246 static int tap_can_send(void *opaque
);
1247 static void tap_send(void *opaque
);
1248 static void tap_writable(void *opaque
);
1250 static void tap_update_fd_handler(TAPState
*s
)
1252 qemu_set_fd_handler2(s
->fd
,
1253 s
->read_poll
? tap_can_send
: NULL
,
1254 s
->read_poll
? tap_send
: NULL
,
1255 s
->write_poll
? tap_writable
: NULL
,
1259 static void tap_read_poll(TAPState
*s
, int enable
)
1261 s
->read_poll
= !!enable
;
1262 tap_update_fd_handler(s
);
1265 static void tap_write_poll(TAPState
*s
, int enable
)
1267 s
->write_poll
= !!enable
;
1268 tap_update_fd_handler(s
);
1271 static void tap_writable(void *opaque
)
1273 TAPState
*s
= opaque
;
1275 tap_write_poll(s
, 0);
1277 qemu_flush_queued_packets(s
->vc
);
1280 static ssize_t
tap_receive_iov(VLANClientState
*vc
, const struct iovec
*iov
,
1283 TAPState
*s
= vc
->opaque
;
1287 len
= writev(s
->fd
, iov
, iovcnt
);
1288 } while (len
== -1 && errno
== EINTR
);
1290 if (len
== -1 && errno
== EAGAIN
) {
1291 tap_write_poll(s
, 1);
1298 static ssize_t
tap_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1300 TAPState
*s
= vc
->opaque
;
1304 len
= write(s
->fd
, buf
, size
);
1305 } while (len
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
1310 static int tap_can_send(void *opaque
)
1312 TAPState
*s
= opaque
;
1314 return qemu_can_send_packet(s
->vc
);
1318 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1323 sbuf
.maxlen
= maxlen
;
1324 sbuf
.buf
= (char *)buf
;
1326 return getmsg(tapfd
, NULL
, &sbuf
, &f
) >= 0 ? sbuf
.len
: -1;
1329 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1331 return read(tapfd
, buf
, maxlen
);
1335 static void tap_send_completed(VLANClientState
*vc
, ssize_t len
)
1337 TAPState
*s
= vc
->opaque
;
1338 tap_read_poll(s
, 1);
1341 static void tap_send(void *opaque
)
1343 TAPState
*s
= opaque
;
1347 size
= tap_read_packet(s
->fd
, s
->buf
, sizeof(s
->buf
));
1352 size
= qemu_send_packet_async(s
->vc
, s
->buf
, size
, tap_send_completed
);
1354 tap_read_poll(s
, 0);
1360 /* sndbuf should be set to a value lower than the tx queue
1361 * capacity of any destination network interface.
1362 * Ethernet NICs generally have txqueuelen=1000, so 1Mb is
1363 * a good default, given a 1500 byte MTU.
1365 #define TAP_DEFAULT_SNDBUF 1024*1024
1367 static int tap_set_sndbuf(TAPState
*s
, const char *sndbuf_str
)
1369 int sndbuf
= TAP_DEFAULT_SNDBUF
;
1372 sndbuf
= atoi(sndbuf_str
);
1379 if (ioctl(s
->fd
, TUNSETSNDBUF
, &sndbuf
) == -1 && sndbuf_str
) {
1380 qemu_error("TUNSETSNDBUF ioctl failed: %s\n", strerror(errno
));
1386 static int tap_set_sndbuf(TAPState
*s
, const char *sndbuf_str
)
1389 qemu_error("No '-net tap,sndbuf=<nbytes>' support available\n");
1394 #endif /* TUNSETSNDBUF */
1396 static void tap_cleanup(VLANClientState
*vc
)
1398 TAPState
*s
= vc
->opaque
;
1400 qemu_purge_queued_packets(vc
);
1402 if (s
->down_script
[0])
1403 launch_script(s
->down_script
, s
->down_script_arg
, s
->fd
);
1405 tap_read_poll(s
, 0);
1406 tap_write_poll(s
, 0);
1413 static TAPState
*net_tap_fd_init(VLANState
*vlan
,
1420 s
= qemu_mallocz(sizeof(TAPState
));
1422 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, tap_receive
,
1423 tap_receive_iov
, tap_cleanup
, s
);
1424 tap_read_poll(s
, 1);
1425 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "fd=%d", fd
);
1429 #if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__)
1430 static int tap_open(char *ifname
, int ifname_size
)
1436 TFR(fd
= open("/dev/tap", O_RDWR
));
1438 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
1443 dev
= devname(s
.st_rdev
, S_IFCHR
);
1444 pstrcpy(ifname
, ifname_size
, dev
);
1446 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1449 #elif defined(__sun__)
1450 #define TUNNEWPPA (('T'<<16) | 0x0001)
1452 * Allocate TAP device, returns opened fd.
1453 * Stores dev name in the first arg(must be large enough).
1455 static int tap_alloc(char *dev
, size_t dev_size
)
1457 int tap_fd
, if_fd
, ppa
= -1;
1458 static int ip_fd
= 0;
1461 static int arp_fd
= 0;
1462 int ip_muxid
, arp_muxid
;
1463 struct strioctl strioc_if
, strioc_ppa
;
1464 int link_type
= I_PLINK
;;
1466 char actual_name
[32] = "";
1468 memset(&ifr
, 0x0, sizeof(ifr
));
1472 while( *ptr
&& !qemu_isdigit((int)*ptr
) ) ptr
++;
1476 /* Check if IP device was opened */
1480 TFR(ip_fd
= open("/dev/udp", O_RDWR
, 0));
1482 syslog(LOG_ERR
, "Can't open /dev/ip (actually /dev/udp)");
1486 TFR(tap_fd
= open("/dev/tap", O_RDWR
, 0));
1488 syslog(LOG_ERR
, "Can't open /dev/tap");
1492 /* Assign a new PPA and get its unit number. */
1493 strioc_ppa
.ic_cmd
= TUNNEWPPA
;
1494 strioc_ppa
.ic_timout
= 0;
1495 strioc_ppa
.ic_len
= sizeof(ppa
);
1496 strioc_ppa
.ic_dp
= (char *)&ppa
;
1497 if ((ppa
= ioctl (tap_fd
, I_STR
, &strioc_ppa
)) < 0)
1498 syslog (LOG_ERR
, "Can't assign new interface");
1500 TFR(if_fd
= open("/dev/tap", O_RDWR
, 0));
1502 syslog(LOG_ERR
, "Can't open /dev/tap (2)");
1505 if(ioctl(if_fd
, I_PUSH
, "ip") < 0){
1506 syslog(LOG_ERR
, "Can't push IP module");
1510 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) < 0)
1511 syslog(LOG_ERR
, "Can't get flags\n");
1513 snprintf (actual_name
, 32, "tap%d", ppa
);
1514 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1517 /* Assign ppa according to the unit number returned by tun device */
1519 if (ioctl (if_fd
, SIOCSLIFNAME
, &ifr
) < 0)
1520 syslog (LOG_ERR
, "Can't set PPA %d", ppa
);
1521 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) <0)
1522 syslog (LOG_ERR
, "Can't get flags\n");
1523 /* Push arp module to if_fd */
1524 if (ioctl (if_fd
, I_PUSH
, "arp") < 0)
1525 syslog (LOG_ERR
, "Can't push ARP module (2)");
1527 /* Push arp module to ip_fd */
1528 if (ioctl (ip_fd
, I_POP
, NULL
) < 0)
1529 syslog (LOG_ERR
, "I_POP failed\n");
1530 if (ioctl (ip_fd
, I_PUSH
, "arp") < 0)
1531 syslog (LOG_ERR
, "Can't push ARP module (3)\n");
1533 TFR(arp_fd
= open ("/dev/tap", O_RDWR
, 0));
1535 syslog (LOG_ERR
, "Can't open %s\n", "/dev/tap");
1537 /* Set ifname to arp */
1538 strioc_if
.ic_cmd
= SIOCSLIFNAME
;
1539 strioc_if
.ic_timout
= 0;
1540 strioc_if
.ic_len
= sizeof(ifr
);
1541 strioc_if
.ic_dp
= (char *)&ifr
;
1542 if (ioctl(arp_fd
, I_STR
, &strioc_if
) < 0){
1543 syslog (LOG_ERR
, "Can't set ifname to arp\n");
1546 if((ip_muxid
= ioctl(ip_fd
, I_LINK
, if_fd
)) < 0){
1547 syslog(LOG_ERR
, "Can't link TAP device to IP");
1551 if ((arp_muxid
= ioctl (ip_fd
, link_type
, arp_fd
)) < 0)
1552 syslog (LOG_ERR
, "Can't link TAP device to ARP");
1556 memset(&ifr
, 0x0, sizeof(ifr
));
1557 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1558 ifr
.lifr_ip_muxid
= ip_muxid
;
1559 ifr
.lifr_arp_muxid
= arp_muxid
;
1561 if (ioctl (ip_fd
, SIOCSLIFMUXID
, &ifr
) < 0)
1563 ioctl (ip_fd
, I_PUNLINK
, arp_muxid
);
1564 ioctl (ip_fd
, I_PUNLINK
, ip_muxid
);
1565 syslog (LOG_ERR
, "Can't set multiplexor id");
1568 snprintf(dev
, dev_size
, "tap%d", ppa
);
1572 static int tap_open(char *ifname
, int ifname_size
)
1576 if( (fd
= tap_alloc(dev
, sizeof(dev
))) < 0 ){
1577 fprintf(stderr
, "Cannot allocate TAP device\n");
1580 pstrcpy(ifname
, ifname_size
, dev
);
1581 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1584 #elif defined (_AIX)
1585 static int tap_open(char *ifname
, int ifname_size
)
1587 fprintf (stderr
, "no tap on AIX\n");
1591 static int tap_open(char *ifname
, int ifname_size
)
1596 TFR(fd
= open("/dev/net/tun", O_RDWR
));
1598 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1601 memset(&ifr
, 0, sizeof(ifr
));
1602 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
1603 if (ifname
[0] != '\0')
1604 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, ifname
);
1606 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tap%d");
1607 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
1609 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1613 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
1614 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1619 static int launch_script(const char *setup_script
, const char *ifname
, int fd
)
1621 sigset_t oldmask
, mask
;
1627 sigaddset(&mask
, SIGCHLD
);
1628 sigprocmask(SIG_BLOCK
, &mask
, &oldmask
);
1630 /* try to launch network script */
1633 int open_max
= sysconf(_SC_OPEN_MAX
), i
;
1635 for (i
= 0; i
< open_max
; i
++) {
1636 if (i
!= STDIN_FILENO
&&
1637 i
!= STDOUT_FILENO
&&
1638 i
!= STDERR_FILENO
&&
1644 *parg
++ = (char *)setup_script
;
1645 *parg
++ = (char *)ifname
;
1647 execv(setup_script
, args
);
1649 } else if (pid
> 0) {
1650 while (waitpid(pid
, &status
, 0) != pid
) {
1653 sigprocmask(SIG_SETMASK
, &oldmask
, NULL
);
1655 if (WIFEXITED(status
) && WEXITSTATUS(status
) == 0) {
1659 fprintf(stderr
, "%s: could not launch network script\n", setup_script
);
1663 static TAPState
*net_tap_init(VLANState
*vlan
, const char *model
,
1664 const char *name
, const char *ifname1
,
1665 const char *setup_script
, const char *down_script
)
1671 if (ifname1
!= NULL
)
1672 pstrcpy(ifname
, sizeof(ifname
), ifname1
);
1675 TFR(fd
= tap_open(ifname
, sizeof(ifname
)));
1679 if (!setup_script
|| !strcmp(setup_script
, "no"))
1681 if (setup_script
[0] != '\0' &&
1682 launch_script(setup_script
, ifname
, fd
)) {
1685 s
= net_tap_fd_init(vlan
, model
, name
, fd
);
1686 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1687 "ifname=%s,script=%s,downscript=%s",
1688 ifname
, setup_script
, down_script
);
1689 if (down_script
&& strcmp(down_script
, "no")) {
1690 snprintf(s
->down_script
, sizeof(s
->down_script
), "%s", down_script
);
1691 snprintf(s
->down_script_arg
, sizeof(s
->down_script_arg
), "%s", ifname
);
1696 #endif /* !_WIN32 */
1698 #if defined(CONFIG_VDE)
1699 typedef struct VDEState
{
1700 VLANClientState
*vc
;
1704 static void vde_to_qemu(void *opaque
)
1706 VDEState
*s
= opaque
;
1710 size
= vde_recv(s
->vde
, (char *)buf
, sizeof(buf
), 0);
1712 qemu_send_packet(s
->vc
, buf
, size
);
1716 static ssize_t
vde_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1718 VDEState
*s
= vc
->opaque
;
1722 ret
= vde_send(s
->vde
, (const char *)buf
, size
, 0);
1723 } while (ret
< 0 && errno
== EINTR
);
1728 static void vde_cleanup(VLANClientState
*vc
)
1730 VDEState
*s
= vc
->opaque
;
1731 qemu_set_fd_handler(vde_datafd(s
->vde
), NULL
, NULL
, NULL
);
1736 static int net_vde_init(VLANState
*vlan
, const char *model
,
1737 const char *name
, const char *sock
,
1738 int port
, const char *group
, int mode
)
1741 char *init_group
= strlen(group
) ? (char *)group
: NULL
;
1742 char *init_sock
= strlen(sock
) ? (char *)sock
: NULL
;
1744 struct vde_open_args args
= {
1746 .group
= init_group
,
1750 s
= qemu_mallocz(sizeof(VDEState
));
1751 s
->vde
= vde_open(init_sock
, (char *)"QEMU", &args
);
1756 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, vde_receive
,
1757 NULL
, vde_cleanup
, s
);
1758 qemu_set_fd_handler(vde_datafd(s
->vde
), vde_to_qemu
, NULL
, s
);
1759 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "sock=%s,fd=%d",
1760 sock
, vde_datafd(s
->vde
));
1765 /* network connection */
1766 typedef struct NetSocketState
{
1767 VLANClientState
*vc
;
1769 int state
; /* 0 = getting length, 1 = getting data */
1771 unsigned int packet_len
;
1773 struct sockaddr_in dgram_dst
; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1776 typedef struct NetSocketListenState
{
1781 } NetSocketListenState
;
1783 /* XXX: we consider we can send the whole packet without blocking */
1784 static ssize_t
net_socket_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1786 NetSocketState
*s
= vc
->opaque
;
1790 send_all(s
->fd
, (const uint8_t *)&len
, sizeof(len
));
1791 return send_all(s
->fd
, buf
, size
);
1794 static ssize_t
net_socket_receive_dgram(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1796 NetSocketState
*s
= vc
->opaque
;
1798 return sendto(s
->fd
, (const void *)buf
, size
, 0,
1799 (struct sockaddr
*)&s
->dgram_dst
, sizeof(s
->dgram_dst
));
1802 static void net_socket_send(void *opaque
)
1804 NetSocketState
*s
= opaque
;
1810 size
= recv(s
->fd
, (void *)buf1
, sizeof(buf1
), 0);
1812 err
= socket_error();
1813 if (err
!= EWOULDBLOCK
)
1815 } else if (size
== 0) {
1816 /* end of connection */
1818 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1824 /* reassemble a packet from the network */
1830 memcpy(s
->buf
+ s
->index
, buf
, l
);
1834 if (s
->index
== 4) {
1836 s
->packet_len
= ntohl(*(uint32_t *)s
->buf
);
1842 l
= s
->packet_len
- s
->index
;
1845 if (s
->index
+ l
<= sizeof(s
->buf
)) {
1846 memcpy(s
->buf
+ s
->index
, buf
, l
);
1848 fprintf(stderr
, "serious error: oversized packet received,"
1849 "connection terminated.\n");
1857 if (s
->index
>= s
->packet_len
) {
1858 qemu_send_packet(s
->vc
, s
->buf
, s
->packet_len
);
1867 static void net_socket_send_dgram(void *opaque
)
1869 NetSocketState
*s
= opaque
;
1872 size
= recv(s
->fd
, (void *)s
->buf
, sizeof(s
->buf
), 0);
1876 /* end of connection */
1877 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1880 qemu_send_packet(s
->vc
, s
->buf
, size
);
1883 static int net_socket_mcast_create(struct sockaddr_in
*mcastaddr
)
1888 if (!IN_MULTICAST(ntohl(mcastaddr
->sin_addr
.s_addr
))) {
1889 fprintf(stderr
, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1890 inet_ntoa(mcastaddr
->sin_addr
),
1891 (int)ntohl(mcastaddr
->sin_addr
.s_addr
));
1895 fd
= socket(PF_INET
, SOCK_DGRAM
, 0);
1897 perror("socket(PF_INET, SOCK_DGRAM)");
1902 ret
=setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
,
1903 (const char *)&val
, sizeof(val
));
1905 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1909 ret
= bind(fd
, (struct sockaddr
*)mcastaddr
, sizeof(*mcastaddr
));
1915 /* Add host to multicast group */
1916 imr
.imr_multiaddr
= mcastaddr
->sin_addr
;
1917 imr
.imr_interface
.s_addr
= htonl(INADDR_ANY
);
1919 ret
= setsockopt(fd
, IPPROTO_IP
, IP_ADD_MEMBERSHIP
,
1920 (const char *)&imr
, sizeof(struct ip_mreq
));
1922 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1926 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1928 ret
=setsockopt(fd
, IPPROTO_IP
, IP_MULTICAST_LOOP
,
1929 (const char *)&val
, sizeof(val
));
1931 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1935 socket_set_nonblock(fd
);
1943 static void net_socket_cleanup(VLANClientState
*vc
)
1945 NetSocketState
*s
= vc
->opaque
;
1946 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1951 static NetSocketState
*net_socket_fd_init_dgram(VLANState
*vlan
,
1954 int fd
, int is_connected
)
1956 struct sockaddr_in saddr
;
1958 socklen_t saddr_len
;
1961 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1962 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1963 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1967 if (getsockname(fd
, (struct sockaddr
*) &saddr
, &saddr_len
) == 0) {
1969 if (saddr
.sin_addr
.s_addr
==0) {
1970 fprintf(stderr
, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1974 /* clone dgram socket */
1975 newfd
= net_socket_mcast_create(&saddr
);
1977 /* error already reported by net_socket_mcast_create() */
1981 /* clone newfd to fd, close newfd */
1986 fprintf(stderr
, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1987 fd
, strerror(errno
));
1992 s
= qemu_mallocz(sizeof(NetSocketState
));
1995 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, net_socket_receive_dgram
,
1996 NULL
, net_socket_cleanup
, s
);
1997 qemu_set_fd_handler(s
->fd
, net_socket_send_dgram
, NULL
, s
);
1999 /* mcast: save bound address as dst */
2000 if (is_connected
) s
->dgram_dst
=saddr
;
2002 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2003 "socket: fd=%d (%s mcast=%s:%d)",
2004 fd
, is_connected
? "cloned" : "",
2005 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2009 static void net_socket_connect(void *opaque
)
2011 NetSocketState
*s
= opaque
;
2012 qemu_set_fd_handler(s
->fd
, net_socket_send
, NULL
, s
);
2015 static NetSocketState
*net_socket_fd_init_stream(VLANState
*vlan
,
2018 int fd
, int is_connected
)
2021 s
= qemu_mallocz(sizeof(NetSocketState
));
2023 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, net_socket_receive
,
2024 NULL
, net_socket_cleanup
, s
);
2025 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2026 "socket: fd=%d", fd
);
2028 net_socket_connect(s
);
2030 qemu_set_fd_handler(s
->fd
, NULL
, net_socket_connect
, s
);
2035 static NetSocketState
*net_socket_fd_init(VLANState
*vlan
,
2036 const char *model
, const char *name
,
2037 int fd
, int is_connected
)
2039 int so_type
= -1, optlen
=sizeof(so_type
);
2041 if(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&so_type
,
2042 (socklen_t
*)&optlen
)< 0) {
2043 fprintf(stderr
, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd
);
2048 return net_socket_fd_init_dgram(vlan
, model
, name
, fd
, is_connected
);
2050 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
2052 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
2053 fprintf(stderr
, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type
, fd
);
2054 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
2059 static void net_socket_accept(void *opaque
)
2061 NetSocketListenState
*s
= opaque
;
2063 struct sockaddr_in saddr
;
2068 len
= sizeof(saddr
);
2069 fd
= accept(s
->fd
, (struct sockaddr
*)&saddr
, &len
);
2070 if (fd
< 0 && errno
!= EINTR
) {
2072 } else if (fd
>= 0) {
2076 s1
= net_socket_fd_init(s
->vlan
, s
->model
, s
->name
, fd
, 1);
2080 snprintf(s1
->vc
->info_str
, sizeof(s1
->vc
->info_str
),
2081 "socket: connection from %s:%d",
2082 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2086 static int net_socket_listen_init(VLANState
*vlan
,
2089 const char *host_str
)
2091 NetSocketListenState
*s
;
2093 struct sockaddr_in saddr
;
2095 if (parse_host_port(&saddr
, host_str
) < 0)
2098 s
= qemu_mallocz(sizeof(NetSocketListenState
));
2100 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
2105 socket_set_nonblock(fd
);
2107 /* allow fast reuse */
2109 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (const char *)&val
, sizeof(val
));
2111 ret
= bind(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
2116 ret
= listen(fd
, 0);
2122 s
->model
= qemu_strdup(model
);
2123 s
->name
= name
? qemu_strdup(name
) : NULL
;
2125 qemu_set_fd_handler(fd
, net_socket_accept
, NULL
, s
);
2129 static int net_socket_connect_init(VLANState
*vlan
,
2132 const char *host_str
)
2135 int fd
, connected
, ret
, err
;
2136 struct sockaddr_in saddr
;
2138 if (parse_host_port(&saddr
, host_str
) < 0)
2141 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
2146 socket_set_nonblock(fd
);
2150 ret
= connect(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
2152 err
= socket_error();
2153 if (err
== EINTR
|| err
== EWOULDBLOCK
) {
2154 } else if (err
== EINPROGRESS
) {
2157 } else if (err
== WSAEALREADY
) {
2170 s
= net_socket_fd_init(vlan
, model
, name
, fd
, connected
);
2173 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2174 "socket: connect to %s:%d",
2175 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2179 static int net_socket_mcast_init(VLANState
*vlan
,
2182 const char *host_str
)
2186 struct sockaddr_in saddr
;
2188 if (parse_host_port(&saddr
, host_str
) < 0)
2192 fd
= net_socket_mcast_create(&saddr
);
2196 s
= net_socket_fd_init(vlan
, model
, name
, fd
, 0);
2200 s
->dgram_dst
= saddr
;
2202 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2203 "socket: mcast=%s:%d",
2204 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2209 typedef struct DumpState
{
2210 VLANClientState
*pcap_vc
;
2215 #define PCAP_MAGIC 0xa1b2c3d4
2217 struct pcap_file_hdr
{
2219 uint16_t version_major
;
2220 uint16_t version_minor
;
2227 struct pcap_sf_pkthdr
{
2236 static ssize_t
dump_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
2238 DumpState
*s
= vc
->opaque
;
2239 struct pcap_sf_pkthdr hdr
;
2243 /* Early return in case of previous error. */
2248 ts
= muldiv64(qemu_get_clock(vm_clock
), 1000000, get_ticks_per_sec());
2249 caplen
= size
> s
->pcap_caplen
? s
->pcap_caplen
: size
;
2251 hdr
.ts
.tv_sec
= ts
/ 1000000;
2252 hdr
.ts
.tv_usec
= ts
% 1000000;
2253 hdr
.caplen
= caplen
;
2255 if (write(s
->fd
, &hdr
, sizeof(hdr
)) != sizeof(hdr
) ||
2256 write(s
->fd
, buf
, caplen
) != caplen
) {
2257 qemu_log("-net dump write error - stop dump\n");
2265 static void net_dump_cleanup(VLANClientState
*vc
)
2267 DumpState
*s
= vc
->opaque
;
2273 static int net_dump_init(VLANState
*vlan
, const char *device
,
2274 const char *name
, const char *filename
, int len
)
2276 struct pcap_file_hdr hdr
;
2279 s
= qemu_malloc(sizeof(DumpState
));
2281 s
->fd
= open(filename
, O_CREAT
| O_WRONLY
| O_BINARY
, 0644);
2283 qemu_error("-net dump: can't open %s\n", filename
);
2287 s
->pcap_caplen
= len
;
2289 hdr
.magic
= PCAP_MAGIC
;
2290 hdr
.version_major
= 2;
2291 hdr
.version_minor
= 4;
2294 hdr
.snaplen
= s
->pcap_caplen
;
2297 if (write(s
->fd
, &hdr
, sizeof(hdr
)) < sizeof(hdr
)) {
2298 qemu_error("-net dump write error: %s\n", strerror(errno
));
2304 s
->pcap_vc
= qemu_new_vlan_client(vlan
, device
, name
, NULL
, dump_receive
, NULL
,
2305 net_dump_cleanup
, s
);
2306 snprintf(s
->pcap_vc
->info_str
, sizeof(s
->pcap_vc
->info_str
),
2307 "dump to %s (len=%d)", filename
, len
);
2311 /* find or alloc a new VLAN */
2312 VLANState
*qemu_find_vlan(int id
, int allocate
)
2314 VLANState
**pvlan
, *vlan
;
2315 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2322 vlan
= qemu_mallocz(sizeof(VLANState
));
2324 QTAILQ_INIT(&vlan
->send_queue
);
2326 pvlan
= &first_vlan
;
2327 while (*pvlan
!= NULL
)
2328 pvlan
= &(*pvlan
)->next
;
2333 static int nic_get_free_idx(void)
2337 for (index
= 0; index
< MAX_NICS
; index
++)
2338 if (!nd_table
[index
].used
)
2343 int qemu_show_nic_models(const char *arg
, const char *const *models
)
2347 if (!arg
|| strcmp(arg
, "?"))
2350 fprintf(stderr
, "qemu: Supported NIC models: ");
2351 for (i
= 0 ; models
[i
]; i
++)
2352 fprintf(stderr
, "%s%c", models
[i
], models
[i
+1] ? ',' : '\n');
2356 void qemu_check_nic_model(NICInfo
*nd
, const char *model
)
2358 const char *models
[2];
2363 if (qemu_show_nic_models(nd
->model
, models
))
2365 if (qemu_find_nic_model(nd
, models
, model
) < 0)
2369 int qemu_find_nic_model(NICInfo
*nd
, const char * const *models
,
2370 const char *default_model
)
2375 nd
->model
= qemu_strdup(default_model
);
2377 for (i
= 0 ; models
[i
]; i
++) {
2378 if (strcmp(nd
->model
, models
[i
]) == 0)
2382 qemu_error("qemu: Unsupported NIC model: %s\n", nd
->model
);
2386 static int net_handle_fd_param(Monitor
*mon
, const char *param
)
2388 if (!qemu_isdigit(param
[0])) {
2391 fd
= monitor_get_fd(mon
, param
);
2393 qemu_error("No file descriptor named %s found", param
);
2399 return strtol(param
, NULL
, 0);
2403 int net_client_init(Monitor
*mon
, const char *device
, const char *p
)
2411 if (get_param_value(buf
, sizeof(buf
), "vlan", p
)) {
2412 vlan_id
= strtol(buf
, NULL
, 0);
2414 vlan
= qemu_find_vlan(vlan_id
, 1);
2416 if (get_param_value(buf
, sizeof(buf
), "name", p
)) {
2417 name
= qemu_strdup(buf
);
2419 if (!strcmp(device
, "nic")) {
2420 static const char * const nic_params
[] = {
2421 "vlan", "name", "macaddr", "model", "addr", "id", "vectors", NULL
2425 int idx
= nic_get_free_idx();
2427 if (check_params(buf
, sizeof(buf
), nic_params
, p
) < 0) {
2428 qemu_error("invalid parameter '%s' in '%s'\n", buf
, p
);
2432 if (idx
== -1 || nb_nics
>= MAX_NICS
) {
2433 qemu_error("Too Many NICs\n");
2437 nd
= &nd_table
[idx
];
2438 memset(nd
, 0, sizeof(*nd
));
2439 macaddr
= nd
->macaddr
;
2445 macaddr
[5] = 0x56 + idx
;
2447 if (get_param_value(buf
, sizeof(buf
), "macaddr", p
)) {
2448 if (parse_macaddr(macaddr
, buf
) < 0) {
2449 qemu_error("invalid syntax for ethernet address\n");
2454 if (get_param_value(buf
, sizeof(buf
), "model", p
)) {
2455 nd
->model
= qemu_strdup(buf
);
2457 if (get_param_value(buf
, sizeof(buf
), "addr", p
)) {
2458 nd
->devaddr
= qemu_strdup(buf
);
2460 if (get_param_value(buf
, sizeof(buf
), "id", p
)) {
2461 nd
->id
= qemu_strdup(buf
);
2463 nd
->nvectors
= NIC_NVECTORS_UNSPECIFIED
;
2464 if (get_param_value(buf
, sizeof(buf
), "vectors", p
)) {
2466 long vectors
= strtol(buf
, &endptr
, 0);
2468 qemu_error("invalid syntax for # of vectors\n");
2472 if (vectors
< 0 || vectors
> 0x7ffffff) {
2473 qemu_error("invalid # of vectors\n");
2477 nd
->nvectors
= vectors
;
2484 vlan
->nb_guest_devs
++;
2487 if (!strcmp(device
, "none")) {
2489 qemu_error("'none' takes no parameters\n");
2493 /* does nothing. It is needed to signal that no network cards
2498 if (!strcmp(device
, "user")) {
2499 static const char * const slirp_params
[] = {
2500 "vlan", "name", "hostname", "restrict", "ip", "net", "host",
2501 "tftp", "bootfile", "dhcpstart", "dns", "smb", "smbserver",
2502 "hostfwd", "guestfwd", NULL
2504 struct slirp_config_str
*config
;
2508 char *vhostname
= NULL
;
2509 char *tftp_export
= NULL
;
2510 char *bootfile
= NULL
;
2511 char *vdhcp_start
= NULL
;
2512 char *vnamesrv
= NULL
;
2513 char *smb_export
= NULL
;
2514 char *vsmbsrv
= NULL
;
2517 if (check_params(buf
, sizeof(buf
), slirp_params
, p
) < 0) {
2518 qemu_error("invalid parameter '%s' in '%s'\n", buf
, p
);
2522 if (get_param_value(buf
, sizeof(buf
), "ip", p
)) {
2523 int vnet_buflen
= strlen(buf
) + strlen("/24") + 1;
2524 /* emulate legacy parameter */
2525 vnet
= qemu_malloc(vnet_buflen
);
2526 pstrcpy(vnet
, vnet_buflen
, buf
);
2527 pstrcat(vnet
, vnet_buflen
, "/24");
2529 if (get_param_value(buf
, sizeof(buf
), "net", p
)) {
2530 vnet
= qemu_strdup(buf
);
2532 if (get_param_value(buf
, sizeof(buf
), "host", p
)) {
2533 vhost
= qemu_strdup(buf
);
2535 if (get_param_value(buf
, sizeof(buf
), "hostname", p
)) {
2536 vhostname
= qemu_strdup(buf
);
2538 if (get_param_value(buf
, sizeof(buf
), "restrict", p
)) {
2539 restricted
= (buf
[0] == 'y') ? 1 : 0;
2541 if (get_param_value(buf
, sizeof(buf
), "dhcpstart", p
)) {
2542 vdhcp_start
= qemu_strdup(buf
);
2544 if (get_param_value(buf
, sizeof(buf
), "dns", p
)) {
2545 vnamesrv
= qemu_strdup(buf
);
2547 if (get_param_value(buf
, sizeof(buf
), "tftp", p
)) {
2548 tftp_export
= qemu_strdup(buf
);
2550 if (get_param_value(buf
, sizeof(buf
), "bootfile", p
)) {
2551 bootfile
= qemu_strdup(buf
);
2553 if (get_param_value(buf
, sizeof(buf
), "smb", p
)) {
2554 smb_export
= qemu_strdup(buf
);
2555 if (get_param_value(buf
, sizeof(buf
), "smbserver", p
)) {
2556 vsmbsrv
= qemu_strdup(buf
);
2561 config
= qemu_malloc(sizeof(*config
));
2562 if (!get_next_param_value(config
->str
, sizeof(config
->str
),
2566 config
->flags
= SLIRP_CFG_HOSTFWD
;
2567 config
->next
= slirp_configs
;
2568 slirp_configs
= config
;
2573 config
= qemu_malloc(sizeof(*config
));
2574 if (!get_next_param_value(config
->str
, sizeof(config
->str
),
2579 config
->next
= slirp_configs
;
2580 slirp_configs
= config
;
2584 vlan
->nb_host_devs
++;
2585 ret
= net_slirp_init(vlan
, device
, name
, restricted
, vnet
, vhost
,
2586 vhostname
, tftp_export
, bootfile
, vdhcp_start
,
2587 vnamesrv
, smb_export
, vsmbsrv
);
2588 while (slirp_configs
) {
2589 config
= slirp_configs
;
2590 slirp_configs
= config
->next
;
2595 qemu_free(vhostname
);
2596 qemu_free(tftp_export
);
2597 qemu_free(bootfile
);
2598 qemu_free(vdhcp_start
);
2599 qemu_free(vnamesrv
);
2600 qemu_free(smb_export
);
2602 } else if (!strcmp(device
, "channel")) {
2603 if (QTAILQ_EMPTY(&slirp_stacks
)) {
2604 struct slirp_config_str
*config
;
2606 config
= qemu_malloc(sizeof(*config
));
2607 pstrcpy(config
->str
, sizeof(config
->str
), p
);
2608 config
->flags
= SLIRP_CFG_LEGACY
;
2609 config
->next
= slirp_configs
;
2610 slirp_configs
= config
;
2613 ret
= slirp_guestfwd(QTAILQ_FIRST(&slirp_stacks
), p
, 1);
2618 if (!strcmp(device
, "tap")) {
2619 static const char * const tap_params
[] = {
2620 "vlan", "name", "ifname", NULL
2624 if (check_params(buf
, sizeof(buf
), tap_params
, p
) < 0) {
2625 qemu_error("invalid parameter '%s' in '%s'\n", buf
, p
);
2629 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2630 qemu_error("tap: no interface name\n");
2634 vlan
->nb_host_devs
++;
2635 ret
= tap_win32_init(vlan
, device
, name
, ifname
);
2637 #elif defined (_AIX)
2639 if (!strcmp(device
, "tap")) {
2640 char ifname
[64], chkbuf
[64];
2641 char setup_script
[1024], down_script
[1024];
2644 vlan
->nb_host_devs
++;
2645 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2646 static const char * const fd_params
[] = {
2647 "vlan", "name", "fd", "sndbuf", NULL
2650 if (check_params(chkbuf
, sizeof(chkbuf
), fd_params
, p
) < 0) {
2651 qemu_error("invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2654 fd
= net_handle_fd_param(mon
, buf
);
2658 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
2659 s
= net_tap_fd_init(vlan
, device
, name
, fd
);
2664 static const char * const tap_params
[] = {
2665 "vlan", "name", "ifname", "script", "downscript", "sndbuf", NULL
2667 if (check_params(chkbuf
, sizeof(chkbuf
), tap_params
, p
) < 0) {
2668 qemu_error("invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2672 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2675 if (get_param_value(setup_script
, sizeof(setup_script
), "script", p
) == 0) {
2676 pstrcpy(setup_script
, sizeof(setup_script
), DEFAULT_NETWORK_SCRIPT
);
2678 if (get_param_value(down_script
, sizeof(down_script
), "downscript", p
) == 0) {
2679 pstrcpy(down_script
, sizeof(down_script
), DEFAULT_NETWORK_DOWN_SCRIPT
);
2681 s
= net_tap_init(vlan
, device
, name
, ifname
, setup_script
, down_script
);
2684 const char *sndbuf_str
= NULL
;
2685 if (get_param_value(buf
, sizeof(buf
), "sndbuf", p
)) {
2688 ret
= tap_set_sndbuf(s
, sndbuf_str
);
2694 if (!strcmp(device
, "socket")) {
2696 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2697 static const char * const fd_params
[] = {
2698 "vlan", "name", "fd", NULL
2702 if (check_params(chkbuf
, sizeof(chkbuf
), fd_params
, p
) < 0) {
2703 qemu_error("invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2706 fd
= net_handle_fd_param(mon
, buf
);
2710 if (!net_socket_fd_init(vlan
, device
, name
, fd
, 1)) {
2715 } else if (get_param_value(buf
, sizeof(buf
), "listen", p
) > 0) {
2716 static const char * const listen_params
[] = {
2717 "vlan", "name", "listen", NULL
2719 if (check_params(chkbuf
, sizeof(chkbuf
), listen_params
, p
) < 0) {
2720 qemu_error("invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2724 ret
= net_socket_listen_init(vlan
, device
, name
, buf
);
2725 } else if (get_param_value(buf
, sizeof(buf
), "connect", p
) > 0) {
2726 static const char * const connect_params
[] = {
2727 "vlan", "name", "connect", NULL
2729 if (check_params(chkbuf
, sizeof(chkbuf
), connect_params
, p
) < 0) {
2730 qemu_error("invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2734 ret
= net_socket_connect_init(vlan
, device
, name
, buf
);
2735 } else if (get_param_value(buf
, sizeof(buf
), "mcast", p
) > 0) {
2736 static const char * const mcast_params
[] = {
2737 "vlan", "name", "mcast", NULL
2739 if (check_params(chkbuf
, sizeof(chkbuf
), mcast_params
, p
) < 0) {
2740 qemu_error("invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2744 ret
= net_socket_mcast_init(vlan
, device
, name
, buf
);
2746 qemu_error("Unknown socket options: %s\n", p
);
2750 vlan
->nb_host_devs
++;
2753 if (!strcmp(device
, "vde")) {
2754 static const char * const vde_params
[] = {
2755 "vlan", "name", "sock", "port", "group", "mode", NULL
2757 char vde_sock
[1024], vde_group
[512];
2758 int vde_port
, vde_mode
;
2760 if (check_params(buf
, sizeof(buf
), vde_params
, p
) < 0) {
2761 qemu_error("invalid parameter '%s' in '%s'\n", buf
, p
);
2765 vlan
->nb_host_devs
++;
2766 if (get_param_value(vde_sock
, sizeof(vde_sock
), "sock", p
) <= 0) {
2769 if (get_param_value(buf
, sizeof(buf
), "port", p
) > 0) {
2770 vde_port
= strtol(buf
, NULL
, 10);
2774 if (get_param_value(vde_group
, sizeof(vde_group
), "group", p
) <= 0) {
2775 vde_group
[0] = '\0';
2777 if (get_param_value(buf
, sizeof(buf
), "mode", p
) > 0) {
2778 vde_mode
= strtol(buf
, NULL
, 8);
2782 ret
= net_vde_init(vlan
, device
, name
, vde_sock
, vde_port
, vde_group
, vde_mode
);
2785 if (!strcmp(device
, "dump")) {
2788 if (get_param_value(buf
, sizeof(buf
), "len", p
) > 0) {
2789 len
= strtol(buf
, NULL
, 0);
2791 if (!get_param_value(buf
, sizeof(buf
), "file", p
)) {
2792 snprintf(buf
, sizeof(buf
), "qemu-vlan%d.pcap", vlan_id
);
2794 ret
= net_dump_init(vlan
, device
, name
, buf
, len
);
2796 qemu_error("Unknown network device: %s\n", device
);
2801 qemu_error("Could not initialize device '%s'\n", device
);
2808 void net_client_uninit(NICInfo
*nd
)
2810 nd
->vlan
->nb_guest_devs
--;
2813 qemu_free(nd
->model
);
2814 qemu_free(nd
->name
);
2815 qemu_free(nd
->devaddr
);
2821 static int net_host_check_device(const char *device
)
2824 const char *valid_param_list
[] = { "tap", "socket", "dump"
2832 for (i
= 0; i
< sizeof(valid_param_list
) / sizeof(char *); i
++) {
2833 if (!strncmp(valid_param_list
[i
], device
,
2834 strlen(valid_param_list
[i
])))
2841 void net_host_device_add(Monitor
*mon
, const QDict
*qdict
)
2843 const char *device
= qdict_get_str(qdict
, "device");
2844 const char *opts
= qdict_get_try_str(qdict
, "opts");
2846 if (!net_host_check_device(device
)) {
2847 monitor_printf(mon
, "invalid host network device %s\n", device
);
2850 if (net_client_init(mon
, device
, opts
? opts
: "") < 0) {
2851 monitor_printf(mon
, "adding host network device %s failed\n", device
);
2855 void net_host_device_remove(Monitor
*mon
, const QDict
*qdict
)
2857 VLANClientState
*vc
;
2858 int vlan_id
= qdict_get_int(qdict
, "vlan_id");
2859 const char *device
= qdict_get_str(qdict
, "device");
2861 vc
= qemu_find_vlan_client_by_name(mon
, vlan_id
, device
);
2865 if (!net_host_check_device(vc
->model
)) {
2866 monitor_printf(mon
, "invalid host network device %s\n", device
);
2869 qemu_del_vlan_client(vc
);
2872 int net_client_parse(const char *str
)
2880 while (*p
!= '\0' && *p
!= ',') {
2881 if ((q
- device
) < sizeof(device
) - 1)
2889 return net_client_init(NULL
, device
, p
);
2892 void net_set_boot_mask(int net_boot_mask
)
2896 /* Only the first four NICs may be bootable */
2897 net_boot_mask
= net_boot_mask
& 0xF;
2899 for (i
= 0; i
< nb_nics
; i
++) {
2900 if (net_boot_mask
& (1 << i
)) {
2901 nd_table
[i
].bootable
= 1;
2902 net_boot_mask
&= ~(1 << i
);
2906 if (net_boot_mask
) {
2907 fprintf(stderr
, "Cannot boot from non-existent NIC\n");
2912 void do_info_network(Monitor
*mon
)
2915 VLANClientState
*vc
;
2917 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2918 monitor_printf(mon
, "VLAN %d devices:\n", vlan
->id
);
2919 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2920 monitor_printf(mon
, " %s: %s\n", vc
->name
, vc
->info_str
);
2924 void do_set_link(Monitor
*mon
, const QDict
*qdict
)
2927 VLANClientState
*vc
= NULL
;
2928 const char *name
= qdict_get_str(qdict
, "name");
2929 const char *up_or_down
= qdict_get_str(qdict
, "up_or_down");
2931 for (vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
)
2932 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2933 if (strcmp(vc
->name
, name
) == 0)
2938 monitor_printf(mon
, "could not find network device '%s'\n", name
);
2942 if (strcmp(up_or_down
, "up") == 0)
2944 else if (strcmp(up_or_down
, "down") == 0)
2947 monitor_printf(mon
, "invalid link status '%s'; only 'up' or 'down' "
2948 "valid\n", up_or_down
);
2950 if (vc
->link_status_changed
)
2951 vc
->link_status_changed(vc
);
2954 void net_cleanup(void)
2958 /* close network clients */
2959 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2960 VLANClientState
*vc
= vlan
->first_client
;
2963 VLANClientState
*next
= vc
->next
;
2965 qemu_del_vlan_client(vc
);
2972 void net_client_check(void)
2976 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2977 if (vlan
->nb_guest_devs
== 0 && vlan
->nb_host_devs
== 0)
2979 if (vlan
->nb_guest_devs
== 0)
2980 fprintf(stderr
, "Warning: vlan %d with no nics\n", vlan
->id
);
2981 if (vlan
->nb_host_devs
== 0)
2983 "Warning: vlan %d is not connected to host network\n",