4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
32 /* Needed early for HOST_BSD etc. */
33 #include "config-host.h"
36 #include <sys/times.h>
40 #include <sys/ioctl.h>
41 #include <sys/resource.h>
42 #include <sys/socket.h>
43 #include <netinet/in.h>
46 #include <net/if_tap.h>
49 #include <linux/if_tun.h>
51 #include <arpa/inet.h>
54 #include <sys/select.h>
57 #if defined(__FreeBSD__) || defined(__DragonFly__)
62 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
63 #include <freebsd/stdlib.h>
68 #include <linux/rtc.h>
70 /* For the benefit of older linux systems which don't supply it,
71 we use a local copy of hpet.h. */
72 /* #include <linux/hpet.h> */
75 #include <linux/ppdev.h>
76 #include <linux/parport.h>
80 #include <sys/ethernet.h>
81 #include <sys/sockio.h>
82 #include <netinet/arp.h>
83 #include <netinet/in.h>
84 #include <netinet/in_systm.h>
85 #include <netinet/ip.h>
86 #include <netinet/ip_icmp.h> // must come after ip.h
87 #include <netinet/udp.h>
88 #include <netinet/tcp.h>
96 #if defined(__OpenBSD__)
100 #if defined(CONFIG_VDE)
101 #include <libvdeplug.h>
107 #include <sys/timeb.h>
108 #include <mmsystem.h>
109 #define getopt_long_only getopt_long
110 #define memalign(align, size) malloc(size)
113 #include "qemu-common.h"
117 #include "qemu-timer.h"
118 #include "qemu-char.h"
119 #include "audio/audio.h"
120 #include "qemu_socket.h"
121 #include "qemu-log.h"
123 #if defined(CONFIG_SLIRP)
124 #include "libslirp.h"
128 static VLANState
*first_vlan
;
130 /***********************************************************/
131 /* network device redirectors */
133 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
134 static void hex_dump(FILE *f
, const uint8_t *buf
, int size
)
138 for(i
=0;i
<size
;i
+=16) {
142 fprintf(f
, "%08x ", i
);
145 fprintf(f
, " %02x", buf
[i
+j
]);
152 if (c
< ' ' || c
> '~')
161 static int parse_macaddr(uint8_t *macaddr
, const char *p
)
168 offset
= strtol(p
, &last_char
, 0);
169 if (0 == errno
&& '\0' == *last_char
&&
170 offset
>= 0 && offset
<= 0xFFFFFF) {
171 macaddr
[3] = (offset
& 0xFF0000) >> 16;
172 macaddr
[4] = (offset
& 0xFF00) >> 8;
173 macaddr
[5] = offset
& 0xFF;
176 for(i
= 0; i
< 6; i
++) {
177 macaddr
[i
] = strtol(p
, (char **)&p
, 16);
182 if (*p
!= ':' && *p
!= '-')
193 static int get_str_sep(char *buf
, int buf_size
, const char **pp
, int sep
)
204 if (len
> buf_size
- 1)
213 int parse_host_src_port(struct sockaddr_in
*haddr
,
214 struct sockaddr_in
*saddr
,
215 const char *input_str
)
217 char *str
= strdup(input_str
);
218 char *host_str
= str
;
220 const char *src_str2
;
224 * Chop off any extra arguments at the end of the string which
225 * would start with a comma, then fill in the src port information
226 * if it was provided else use the "any address" and "any port".
228 if ((ptr
= strchr(str
,',')))
231 if ((src_str
= strchr(input_str
,'@'))) {
236 if (parse_host_port(haddr
, host_str
) < 0)
240 if (!src_str
|| *src_str
== '\0')
243 if (parse_host_port(saddr
, src_str2
) < 0)
254 int parse_host_port(struct sockaddr_in
*saddr
, const char *str
)
262 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
264 saddr
->sin_family
= AF_INET
;
265 if (buf
[0] == '\0') {
266 saddr
->sin_addr
.s_addr
= 0;
268 if (qemu_isdigit(buf
[0])) {
269 if (!inet_aton(buf
, &saddr
->sin_addr
))
272 if ((he
= gethostbyname(buf
)) == NULL
)
274 saddr
->sin_addr
= *(struct in_addr
*)he
->h_addr
;
277 port
= strtol(p
, (char **)&r
, 0);
280 saddr
->sin_port
= htons(port
);
284 #if !defined(_WIN32) && 0
285 static int parse_unix_path(struct sockaddr_un
*uaddr
, const char *str
)
290 len
= MIN(108, strlen(str
));
291 p
= strchr(str
, ',');
293 len
= MIN(len
, p
- str
);
295 memset(uaddr
, 0, sizeof(*uaddr
));
297 uaddr
->sun_family
= AF_UNIX
;
298 memcpy(uaddr
->sun_path
, str
, len
);
304 void qemu_format_nic_info_str(VLANClientState
*vc
, uint8_t macaddr
[6])
306 snprintf(vc
->info_str
, sizeof(vc
->info_str
),
307 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
309 macaddr
[0], macaddr
[1], macaddr
[2],
310 macaddr
[3], macaddr
[4], macaddr
[5]);
313 static char *assign_name(VLANClientState
*vc1
, const char *model
)
319 for (vlan
= first_vlan
; vlan
; vlan
= vlan
->next
) {
322 for (vc
= vlan
->first_client
; vc
; vc
= vc
->next
)
323 if (vc
!= vc1
&& strcmp(vc
->model
, model
) == 0)
327 snprintf(buf
, sizeof(buf
), "%s.%d", model
, id
);
332 VLANClientState
*qemu_new_vlan_client(VLANState
*vlan
,
335 IOReadHandler
*fd_read
,
336 IOCanRWHandler
*fd_can_read
,
340 VLANClientState
*vc
, **pvc
;
341 vc
= qemu_mallocz(sizeof(VLANClientState
));
342 vc
->model
= strdup(model
);
344 vc
->name
= strdup(name
);
346 vc
->name
= assign_name(vc
, model
);
347 vc
->fd_read
= fd_read
;
348 vc
->fd_can_read
= fd_can_read
;
349 vc
->cleanup
= cleanup
;
354 pvc
= &vlan
->first_client
;
361 void qemu_del_vlan_client(VLANClientState
*vc
)
363 VLANClientState
**pvc
= &vc
->vlan
->first_client
;
379 VLANClientState
*qemu_find_vlan_client(VLANState
*vlan
, void *opaque
)
381 VLANClientState
**pvc
= &vlan
->first_client
;
384 if ((*pvc
)->opaque
== opaque
)
392 int qemu_can_send_packet(VLANClientState
*sender
)
394 VLANState
*vlan
= sender
->vlan
;
397 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
402 /* no fd_can_read() handler, they can always receive */
403 if (!vc
->fd_can_read
|| vc
->fd_can_read(vc
->opaque
)) {
411 qemu_deliver_packet(VLANClientState
*sender
, const uint8_t *buf
, int size
)
415 for (vc
= sender
->vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
416 if (vc
!= sender
&& !vc
->link_down
) {
417 vc
->fd_read(vc
->opaque
, buf
, size
);
422 void qemu_send_packet(VLANClientState
*vc
, const uint8_t *buf
, int size
)
424 VLANState
*vlan
= vc
->vlan
;
431 printf("vlan %d send:\n", vlan
->id
);
432 hex_dump(stdout
, buf
, size
);
434 if (vlan
->delivering
) {
435 packet
= qemu_malloc(sizeof(VLANPacket
) + size
);
436 packet
->next
= vlan
->send_queue
;
439 memcpy(packet
->data
, buf
, size
);
440 vlan
->send_queue
= packet
;
442 vlan
->delivering
= 1;
443 qemu_deliver_packet(vc
, buf
, size
);
444 while ((packet
= vlan
->send_queue
) != NULL
) {
445 vlan
->send_queue
= packet
->next
;
446 qemu_deliver_packet(packet
->sender
, packet
->data
, packet
->size
);
449 vlan
->delivering
= 0;
453 static ssize_t
vc_sendv_compat(VLANClientState
*vc
, const struct iovec
*iov
,
456 uint8_t buffer
[4096];
460 for (i
= 0; i
< iovcnt
; i
++) {
463 len
= MIN(sizeof(buffer
) - offset
, iov
[i
].iov_len
);
464 memcpy(buffer
+ offset
, iov
[i
].iov_base
, len
);
468 vc
->fd_read(vc
->opaque
, buffer
, offset
);
473 static ssize_t
calc_iov_length(const struct iovec
*iov
, int iovcnt
)
478 for (i
= 0; i
< iovcnt
; i
++)
479 offset
+= iov
[i
].iov_len
;
483 ssize_t
qemu_sendv_packet(VLANClientState
*sender
, const struct iovec
*iov
,
486 VLANState
*vlan
= sender
->vlan
;
492 if (sender
->link_down
)
493 return calc_iov_length(iov
, iovcnt
);
495 if (vlan
->delivering
) {
496 max_len
= calc_iov_length(iov
, iovcnt
);
498 packet
= qemu_malloc(sizeof(VLANPacket
) + max_len
);
499 packet
->next
= vlan
->send_queue
;
500 packet
->sender
= sender
;
502 for (i
= 0; i
< iovcnt
; i
++) {
503 size_t len
= iov
[i
].iov_len
;
505 memcpy(packet
->data
+ packet
->size
, iov
[i
].iov_base
, len
);
508 vlan
->send_queue
= packet
;
510 vlan
->delivering
= 1;
512 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
519 len
= calc_iov_length(iov
, iovcnt
);
520 } else if (vc
->fd_readv
) {
521 len
= vc
->fd_readv(vc
->opaque
, iov
, iovcnt
);
522 } else if (vc
->fd_read
) {
523 len
= vc_sendv_compat(vc
, iov
, iovcnt
);
525 max_len
= MAX(max_len
, len
);
528 while ((packet
= vlan
->send_queue
) != NULL
) {
529 vlan
->send_queue
= packet
->next
;
530 qemu_deliver_packet(packet
->sender
, packet
->data
, packet
->size
);
533 vlan
->delivering
= 0;
539 static void config_error(Monitor
*mon
, const char *fmt
, ...)
545 monitor_vprintf(mon
, fmt
, ap
);
547 fprintf(stderr
, "qemu: ");
548 vfprintf(stderr
, fmt
, ap
);
554 #if defined(CONFIG_SLIRP)
556 /* slirp network adapter */
558 struct slirp_config_str
{
559 struct slirp_config_str
*next
;
563 static int slirp_inited
;
564 static struct slirp_config_str
*slirp_redirs
;
566 static const char *slirp_smb_export
;
568 static VLANClientState
*slirp_vc
;
570 static void slirp_smb(const char *exported_dir
);
571 static void slirp_redirection(Monitor
*mon
, const char *redir_str
);
573 int slirp_can_output(void)
575 return !slirp_vc
|| qemu_can_send_packet(slirp_vc
);
578 void slirp_output(const uint8_t *pkt
, int pkt_len
)
581 printf("slirp output:\n");
582 hex_dump(stdout
, pkt
, pkt_len
);
586 qemu_send_packet(slirp_vc
, pkt
, pkt_len
);
589 int slirp_is_inited(void)
594 static void slirp_receive(void *opaque
, const uint8_t *buf
, int size
)
597 printf("slirp input:\n");
598 hex_dump(stdout
, buf
, size
);
600 slirp_input(buf
, size
);
603 static int slirp_in_use
;
605 static void net_slirp_cleanup(VLANClientState
*vc
)
610 static int net_slirp_init(VLANState
*vlan
, const char *model
, const char *name
,
611 int restricted
, const char *ip
)
614 /* slirp only supports a single instance so far */
619 slirp_init(restricted
, ip
);
621 while (slirp_redirs
) {
622 struct slirp_config_str
*config
= slirp_redirs
;
624 slirp_redirection(NULL
, config
->str
);
625 slirp_redirs
= config
->next
;
629 if (slirp_smb_export
) {
630 slirp_smb(slirp_smb_export
);
635 slirp_vc
= qemu_new_vlan_client(vlan
, model
, name
, slirp_receive
,
636 NULL
, net_slirp_cleanup
, NULL
);
637 slirp_vc
->info_str
[0] = '\0';
642 static void net_slirp_redir_print(void *opaque
, int is_udp
,
643 struct in_addr
*laddr
, u_int lport
,
644 struct in_addr
*faddr
, u_int fport
)
646 Monitor
*mon
= (Monitor
*)opaque
;
651 h_addr
= ntohl(faddr
->s_addr
);
652 g_addr
= ntohl(laddr
->s_addr
);
654 monitor_printf(mon
, " %s |", is_udp
? "udp" : "tcp" );
655 snprintf(buf
, 15, "%d.%d.%d.%d", (h_addr
>> 24) & 0xff,
656 (h_addr
>> 16) & 0xff,
657 (h_addr
>> 8) & 0xff,
659 monitor_printf(mon
, " %15s |", buf
);
660 monitor_printf(mon
, " %5d |", fport
);
662 snprintf(buf
, 15, "%d.%d.%d.%d", (g_addr
>> 24) & 0xff,
663 (g_addr
>> 16) & 0xff,
664 (g_addr
>> 8) & 0xff,
666 monitor_printf(mon
, " %15s |", buf
);
667 monitor_printf(mon
, " %5d\n", lport
);
671 static void net_slirp_redir_list(Monitor
*mon
)
676 monitor_printf(mon
, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
677 monitor_printf(mon
, " | | | | \n");
678 slirp_redir_loop(net_slirp_redir_print
, mon
);
681 static void net_slirp_redir_rm(Monitor
*mon
, const char *port_str
)
685 const char *p
= port_str
;
692 if (!port_str
|| !port_str
[0])
695 get_str_sep(buf
, sizeof(buf
), &p
, ':');
697 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
699 } else if (!strcmp(buf
, "udp")) {
707 n
= slirp_redir_rm(is_udp
, host_port
);
709 monitor_printf(mon
, "removed %d redirections to %s port %d\n", n
,
710 is_udp
? "udp" : "tcp", host_port
);
714 monitor_printf(mon
, "invalid format\n");
717 static void slirp_redirection(Monitor
*mon
, const char *redir_str
)
719 struct in_addr guest_addr
;
720 int host_port
, guest_port
;
726 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
729 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
731 } else if (!strcmp(buf
, "udp")) {
737 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
740 host_port
= strtol(buf
, &r
, 0);
745 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
748 if (buf
[0] == '\0') {
749 pstrcpy(buf
, sizeof(buf
), "10.0.2.15");
751 if (!inet_aton(buf
, &guest_addr
)) {
755 guest_port
= strtol(p
, &r
, 0);
760 if (slirp_redir(is_udp
, host_port
, guest_addr
, guest_port
) < 0) {
761 config_error(mon
, "could not set up redirection '%s'\n", redir_str
);
766 config_error(mon
, "invalid redirection format '%s'\n", redir_str
);
769 void net_slirp_redir(Monitor
*mon
, const char *redir_str
, const char *redir_opt2
)
771 struct slirp_config_str
*config
;
775 monitor_printf(mon
, "user mode network stack not in use\n");
777 config
= qemu_malloc(sizeof(*config
));
778 config
->str
= redir_str
;
779 config
->next
= slirp_redirs
;
780 slirp_redirs
= config
;
785 if (!strcmp(redir_str
, "remove")) {
786 net_slirp_redir_rm(mon
, redir_opt2
);
790 if (!strcmp(redir_str
, "list")) {
791 net_slirp_redir_list(mon
);
795 slirp_redirection(mon
, redir_str
);
800 static char smb_dir
[1024];
802 static void erase_dir(char *dir_name
)
808 /* erase all the files in the directory */
809 if ((d
= opendir(dir_name
)) != NULL
) {
814 if (strcmp(de
->d_name
, ".") != 0 &&
815 strcmp(de
->d_name
, "..") != 0) {
816 snprintf(filename
, sizeof(filename
), "%s/%s",
817 smb_dir
, de
->d_name
);
818 if (unlink(filename
) != 0) /* is it a directory? */
827 /* automatic user mode samba server configuration */
828 static void smb_exit(void)
833 static void slirp_smb(const char *exported_dir
)
836 char smb_cmdline
[1024];
839 /* XXX: better tmp dir construction */
840 snprintf(smb_dir
, sizeof(smb_dir
), "/tmp/qemu-smb.%ld", (long)getpid());
841 if (mkdir(smb_dir
, 0700) < 0) {
842 fprintf(stderr
, "qemu: could not create samba server dir '%s'\n", smb_dir
);
845 snprintf(smb_conf
, sizeof(smb_conf
), "%s/%s", smb_dir
, "smb.conf");
847 f
= fopen(smb_conf
, "w");
849 fprintf(stderr
, "qemu: could not create samba server configuration file '%s'\n", smb_conf
);
856 "socket address=127.0.0.1\n"
858 "lock directory=%s\n"
859 "log file=%s/log.smbd\n"
860 "smb passwd file=%s/smbpasswd\n"
876 snprintf(smb_cmdline
, sizeof(smb_cmdline
), "%s -s %s",
877 SMBD_COMMAND
, smb_conf
);
879 slirp_add_exec(0, smb_cmdline
, 4, 139);
882 /* automatic user mode samba server configuration */
883 void net_slirp_smb(const char *exported_dir
)
885 if (slirp_smb_export
) {
886 fprintf(stderr
, "-smb given twice\n");
889 slirp_smb_export
= exported_dir
;
891 slirp_smb(exported_dir
);
895 #endif /* !defined(_WIN32) */
897 void do_info_slirp(Monitor
*mon
)
907 static int vmchannel_can_read(void *opaque
)
909 struct VMChannel
*vmc
= (struct VMChannel
*)opaque
;
910 return slirp_socket_can_recv(4, vmc
->port
);
913 static void vmchannel_read(void *opaque
, const uint8_t *buf
, int size
)
915 struct VMChannel
*vmc
= (struct VMChannel
*)opaque
;
916 slirp_socket_recv(4, vmc
->port
, buf
, size
);
919 #endif /* CONFIG_SLIRP */
923 typedef struct TAPState
{
926 char down_script
[1024];
927 char down_script_arg
[128];
931 static int launch_script(const char *setup_script
, const char *ifname
, int fd
);
933 static ssize_t
tap_receive_iov(void *opaque
, const struct iovec
*iov
,
936 TAPState
*s
= opaque
;
940 len
= writev(s
->fd
, iov
, iovcnt
);
941 } while (len
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
946 static void tap_receive(void *opaque
, const uint8_t *buf
, int size
)
948 TAPState
*s
= opaque
;
951 ret
= write(s
->fd
, buf
, size
);
952 if (ret
< 0 && (errno
== EINTR
|| errno
== EAGAIN
)) {
960 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
965 sbuf
.maxlen
= maxlen
;
966 sbuf
.buf
= (char *)buf
;
968 return getmsg(tapfd
, NULL
, &sbuf
, &f
) >= 0 ? sbuf
.len
: -1;
971 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
973 return read(tapfd
, buf
, maxlen
);
977 static void tap_send(void *opaque
)
979 TAPState
*s
= opaque
;
982 size
= tap_read_packet(s
->fd
, s
->buf
, sizeof(s
->buf
));
984 qemu_send_packet(s
->vc
, s
->buf
, size
);
988 static void tap_cleanup(VLANClientState
*vc
)
990 TAPState
*s
= vc
->opaque
;
992 if (s
->down_script
[0])
993 launch_script(s
->down_script
, s
->down_script_arg
, s
->fd
);
995 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1002 static TAPState
*net_tap_fd_init(VLANState
*vlan
,
1009 s
= qemu_mallocz(sizeof(TAPState
));
1011 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, tap_receive
,
1012 NULL
, tap_cleanup
, s
);
1013 s
->vc
->fd_readv
= tap_receive_iov
;
1014 qemu_set_fd_handler(s
->fd
, tap_send
, NULL
, s
);
1015 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "fd=%d", fd
);
1019 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
1020 static int tap_open(char *ifname
, int ifname_size
)
1026 TFR(fd
= open("/dev/tap", O_RDWR
));
1028 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
1033 dev
= devname(s
.st_rdev
, S_IFCHR
);
1034 pstrcpy(ifname
, ifname_size
, dev
);
1036 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1039 #elif defined(__sun__)
1040 #define TUNNEWPPA (('T'<<16) | 0x0001)
1042 * Allocate TAP device, returns opened fd.
1043 * Stores dev name in the first arg(must be large enough).
1045 static int tap_alloc(char *dev
, size_t dev_size
)
1047 int tap_fd
, if_fd
, ppa
= -1;
1048 static int ip_fd
= 0;
1051 static int arp_fd
= 0;
1052 int ip_muxid
, arp_muxid
;
1053 struct strioctl strioc_if
, strioc_ppa
;
1054 int link_type
= I_PLINK
;;
1056 char actual_name
[32] = "";
1058 memset(&ifr
, 0x0, sizeof(ifr
));
1062 while( *ptr
&& !qemu_isdigit((int)*ptr
) ) ptr
++;
1066 /* Check if IP device was opened */
1070 TFR(ip_fd
= open("/dev/udp", O_RDWR
, 0));
1072 syslog(LOG_ERR
, "Can't open /dev/ip (actually /dev/udp)");
1076 TFR(tap_fd
= open("/dev/tap", O_RDWR
, 0));
1078 syslog(LOG_ERR
, "Can't open /dev/tap");
1082 /* Assign a new PPA and get its unit number. */
1083 strioc_ppa
.ic_cmd
= TUNNEWPPA
;
1084 strioc_ppa
.ic_timout
= 0;
1085 strioc_ppa
.ic_len
= sizeof(ppa
);
1086 strioc_ppa
.ic_dp
= (char *)&ppa
;
1087 if ((ppa
= ioctl (tap_fd
, I_STR
, &strioc_ppa
)) < 0)
1088 syslog (LOG_ERR
, "Can't assign new interface");
1090 TFR(if_fd
= open("/dev/tap", O_RDWR
, 0));
1092 syslog(LOG_ERR
, "Can't open /dev/tap (2)");
1095 if(ioctl(if_fd
, I_PUSH
, "ip") < 0){
1096 syslog(LOG_ERR
, "Can't push IP module");
1100 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) < 0)
1101 syslog(LOG_ERR
, "Can't get flags\n");
1103 snprintf (actual_name
, 32, "tap%d", ppa
);
1104 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1107 /* Assign ppa according to the unit number returned by tun device */
1109 if (ioctl (if_fd
, SIOCSLIFNAME
, &ifr
) < 0)
1110 syslog (LOG_ERR
, "Can't set PPA %d", ppa
);
1111 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) <0)
1112 syslog (LOG_ERR
, "Can't get flags\n");
1113 /* Push arp module to if_fd */
1114 if (ioctl (if_fd
, I_PUSH
, "arp") < 0)
1115 syslog (LOG_ERR
, "Can't push ARP module (2)");
1117 /* Push arp module to ip_fd */
1118 if (ioctl (ip_fd
, I_POP
, NULL
) < 0)
1119 syslog (LOG_ERR
, "I_POP failed\n");
1120 if (ioctl (ip_fd
, I_PUSH
, "arp") < 0)
1121 syslog (LOG_ERR
, "Can't push ARP module (3)\n");
1123 TFR(arp_fd
= open ("/dev/tap", O_RDWR
, 0));
1125 syslog (LOG_ERR
, "Can't open %s\n", "/dev/tap");
1127 /* Set ifname to arp */
1128 strioc_if
.ic_cmd
= SIOCSLIFNAME
;
1129 strioc_if
.ic_timout
= 0;
1130 strioc_if
.ic_len
= sizeof(ifr
);
1131 strioc_if
.ic_dp
= (char *)&ifr
;
1132 if (ioctl(arp_fd
, I_STR
, &strioc_if
) < 0){
1133 syslog (LOG_ERR
, "Can't set ifname to arp\n");
1136 if((ip_muxid
= ioctl(ip_fd
, I_LINK
, if_fd
)) < 0){
1137 syslog(LOG_ERR
, "Can't link TAP device to IP");
1141 if ((arp_muxid
= ioctl (ip_fd
, link_type
, arp_fd
)) < 0)
1142 syslog (LOG_ERR
, "Can't link TAP device to ARP");
1146 memset(&ifr
, 0x0, sizeof(ifr
));
1147 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1148 ifr
.lifr_ip_muxid
= ip_muxid
;
1149 ifr
.lifr_arp_muxid
= arp_muxid
;
1151 if (ioctl (ip_fd
, SIOCSLIFMUXID
, &ifr
) < 0)
1153 ioctl (ip_fd
, I_PUNLINK
, arp_muxid
);
1154 ioctl (ip_fd
, I_PUNLINK
, ip_muxid
);
1155 syslog (LOG_ERR
, "Can't set multiplexor id");
1158 snprintf(dev
, dev_size
, "tap%d", ppa
);
1162 static int tap_open(char *ifname
, int ifname_size
)
1166 if( (fd
= tap_alloc(dev
, sizeof(dev
))) < 0 ){
1167 fprintf(stderr
, "Cannot allocate TAP device\n");
1170 pstrcpy(ifname
, ifname_size
, dev
);
1171 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1174 #elif defined (_AIX)
1175 static int tap_open(char *ifname
, int ifname_size
)
1177 fprintf (stderr
, "no tap on AIX\n");
1181 static int tap_open(char *ifname
, int ifname_size
)
1186 TFR(fd
= open("/dev/net/tun", O_RDWR
));
1188 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1191 memset(&ifr
, 0, sizeof(ifr
));
1192 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
1193 if (ifname
[0] != '\0')
1194 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, ifname
);
1196 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tap%d");
1197 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
1199 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1203 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
1204 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1209 static int launch_script(const char *setup_script
, const char *ifname
, int fd
)
1211 sigset_t oldmask
, mask
;
1217 sigaddset(&mask
, SIGCHLD
);
1218 sigprocmask(SIG_BLOCK
, &mask
, &oldmask
);
1220 /* try to launch network script */
1223 int open_max
= sysconf(_SC_OPEN_MAX
), i
;
1225 for (i
= 0; i
< open_max
; i
++) {
1226 if (i
!= STDIN_FILENO
&&
1227 i
!= STDOUT_FILENO
&&
1228 i
!= STDERR_FILENO
&&
1234 *parg
++ = (char *)setup_script
;
1235 *parg
++ = (char *)ifname
;
1237 execv(setup_script
, args
);
1239 } else if (pid
> 0) {
1240 while (waitpid(pid
, &status
, 0) != pid
) {
1243 sigprocmask(SIG_SETMASK
, &oldmask
, NULL
);
1245 if (WIFEXITED(status
) && WEXITSTATUS(status
) == 0) {
1249 fprintf(stderr
, "%s: could not launch network script\n", setup_script
);
1253 static int net_tap_init(VLANState
*vlan
, const char *model
,
1254 const char *name
, const char *ifname1
,
1255 const char *setup_script
, const char *down_script
)
1261 if (ifname1
!= NULL
)
1262 pstrcpy(ifname
, sizeof(ifname
), ifname1
);
1265 TFR(fd
= tap_open(ifname
, sizeof(ifname
)));
1269 if (!setup_script
|| !strcmp(setup_script
, "no"))
1271 if (setup_script
[0] != '\0') {
1272 if (launch_script(setup_script
, ifname
, fd
))
1275 s
= net_tap_fd_init(vlan
, model
, name
, fd
);
1276 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1277 "ifname=%s,script=%s,downscript=%s",
1278 ifname
, setup_script
, down_script
);
1279 if (down_script
&& strcmp(down_script
, "no")) {
1280 snprintf(s
->down_script
, sizeof(s
->down_script
), "%s", down_script
);
1281 snprintf(s
->down_script_arg
, sizeof(s
->down_script_arg
), "%s", ifname
);
1286 #endif /* !_WIN32 */
1288 #if defined(CONFIG_VDE)
1289 typedef struct VDEState
{
1290 VLANClientState
*vc
;
1294 static void vde_to_qemu(void *opaque
)
1296 VDEState
*s
= opaque
;
1300 size
= vde_recv(s
->vde
, (char *)buf
, sizeof(buf
), 0);
1302 qemu_send_packet(s
->vc
, buf
, size
);
1306 static void vde_from_qemu(void *opaque
, const uint8_t *buf
, int size
)
1308 VDEState
*s
= opaque
;
1311 ret
= vde_send(s
->vde
, (const char *)buf
, size
, 0);
1312 if (ret
< 0 && errno
== EINTR
) {
1319 static void vde_cleanup(VLANClientState
*vc
)
1321 VDEState
*s
= vc
->opaque
;
1322 qemu_set_fd_handler(vde_datafd(s
->vde
), NULL
, NULL
, NULL
);
1327 static int net_vde_init(VLANState
*vlan
, const char *model
,
1328 const char *name
, const char *sock
,
1329 int port
, const char *group
, int mode
)
1332 char *init_group
= strlen(group
) ? (char *)group
: NULL
;
1333 char *init_sock
= strlen(sock
) ? (char *)sock
: NULL
;
1335 struct vde_open_args args
= {
1337 .group
= init_group
,
1341 s
= qemu_mallocz(sizeof(VDEState
));
1342 s
->vde
= vde_open(init_sock
, (char *)"QEMU", &args
);
1347 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, vde_from_qemu
,
1348 NULL
, vde_cleanup
, s
);
1349 qemu_set_fd_handler(vde_datafd(s
->vde
), vde_to_qemu
, NULL
, s
);
1350 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "sock=%s,fd=%d",
1351 sock
, vde_datafd(s
->vde
));
1356 /* network connection */
1357 typedef struct NetSocketState
{
1358 VLANClientState
*vc
;
1360 int state
; /* 0 = getting length, 1 = getting data */
1362 unsigned int packet_len
;
1364 struct sockaddr_in dgram_dst
; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1367 typedef struct NetSocketListenState
{
1372 } NetSocketListenState
;
1374 /* XXX: we consider we can send the whole packet without blocking */
1375 static void net_socket_receive(void *opaque
, const uint8_t *buf
, int size
)
1377 NetSocketState
*s
= opaque
;
1381 send_all(s
->fd
, (const uint8_t *)&len
, sizeof(len
));
1382 send_all(s
->fd
, buf
, size
);
1385 static void net_socket_receive_dgram(void *opaque
, const uint8_t *buf
, int size
)
1387 NetSocketState
*s
= opaque
;
1388 sendto(s
->fd
, buf
, size
, 0,
1389 (struct sockaddr
*)&s
->dgram_dst
, sizeof(s
->dgram_dst
));
1392 static void net_socket_send(void *opaque
)
1394 NetSocketState
*s
= opaque
;
1400 size
= recv(s
->fd
, buf1
, sizeof(buf1
), 0);
1402 err
= socket_error();
1403 if (err
!= EWOULDBLOCK
)
1405 } else if (size
== 0) {
1406 /* end of connection */
1408 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1414 /* reassemble a packet from the network */
1420 memcpy(s
->buf
+ s
->index
, buf
, l
);
1424 if (s
->index
== 4) {
1426 s
->packet_len
= ntohl(*(uint32_t *)s
->buf
);
1432 l
= s
->packet_len
- s
->index
;
1435 if (s
->index
+ l
<= sizeof(s
->buf
)) {
1436 memcpy(s
->buf
+ s
->index
, buf
, l
);
1438 fprintf(stderr
, "serious error: oversized packet received,"
1439 "connection terminated.\n");
1447 if (s
->index
>= s
->packet_len
) {
1448 qemu_send_packet(s
->vc
, s
->buf
, s
->packet_len
);
1457 static void net_socket_send_dgram(void *opaque
)
1459 NetSocketState
*s
= opaque
;
1462 size
= recv(s
->fd
, s
->buf
, sizeof(s
->buf
), 0);
1466 /* end of connection */
1467 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1470 qemu_send_packet(s
->vc
, s
->buf
, size
);
1473 static int net_socket_mcast_create(struct sockaddr_in
*mcastaddr
)
1478 if (!IN_MULTICAST(ntohl(mcastaddr
->sin_addr
.s_addr
))) {
1479 fprintf(stderr
, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1480 inet_ntoa(mcastaddr
->sin_addr
),
1481 (int)ntohl(mcastaddr
->sin_addr
.s_addr
));
1485 fd
= socket(PF_INET
, SOCK_DGRAM
, 0);
1487 perror("socket(PF_INET, SOCK_DGRAM)");
1492 ret
=setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
,
1493 (const char *)&val
, sizeof(val
));
1495 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1499 ret
= bind(fd
, (struct sockaddr
*)mcastaddr
, sizeof(*mcastaddr
));
1505 /* Add host to multicast group */
1506 imr
.imr_multiaddr
= mcastaddr
->sin_addr
;
1507 imr
.imr_interface
.s_addr
= htonl(INADDR_ANY
);
1509 ret
= setsockopt(fd
, IPPROTO_IP
, IP_ADD_MEMBERSHIP
,
1510 (const char *)&imr
, sizeof(struct ip_mreq
));
1512 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1516 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1518 ret
=setsockopt(fd
, IPPROTO_IP
, IP_MULTICAST_LOOP
,
1519 (const char *)&val
, sizeof(val
));
1521 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1525 socket_set_nonblock(fd
);
1533 static void net_socket_cleanup(VLANClientState
*vc
)
1535 NetSocketState
*s
= vc
->opaque
;
1536 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1541 static NetSocketState
*net_socket_fd_init_dgram(VLANState
*vlan
,
1544 int fd
, int is_connected
)
1546 struct sockaddr_in saddr
;
1548 socklen_t saddr_len
;
1551 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1552 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1553 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1557 if (getsockname(fd
, (struct sockaddr
*) &saddr
, &saddr_len
) == 0) {
1559 if (saddr
.sin_addr
.s_addr
==0) {
1560 fprintf(stderr
, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1564 /* clone dgram socket */
1565 newfd
= net_socket_mcast_create(&saddr
);
1567 /* error already reported by net_socket_mcast_create() */
1571 /* clone newfd to fd, close newfd */
1576 fprintf(stderr
, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1577 fd
, strerror(errno
));
1582 s
= qemu_mallocz(sizeof(NetSocketState
));
1585 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, net_socket_receive_dgram
,
1586 NULL
, net_socket_cleanup
, s
);
1587 qemu_set_fd_handler(s
->fd
, net_socket_send_dgram
, NULL
, s
);
1589 /* mcast: save bound address as dst */
1590 if (is_connected
) s
->dgram_dst
=saddr
;
1592 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1593 "socket: fd=%d (%s mcast=%s:%d)",
1594 fd
, is_connected
? "cloned" : "",
1595 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1599 static void net_socket_connect(void *opaque
)
1601 NetSocketState
*s
= opaque
;
1602 qemu_set_fd_handler(s
->fd
, net_socket_send
, NULL
, s
);
1605 static NetSocketState
*net_socket_fd_init_stream(VLANState
*vlan
,
1608 int fd
, int is_connected
)
1611 s
= qemu_mallocz(sizeof(NetSocketState
));
1613 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, net_socket_receive
,
1614 NULL
, net_socket_cleanup
, s
);
1615 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1616 "socket: fd=%d", fd
);
1618 net_socket_connect(s
);
1620 qemu_set_fd_handler(s
->fd
, NULL
, net_socket_connect
, s
);
1625 static NetSocketState
*net_socket_fd_init(VLANState
*vlan
,
1626 const char *model
, const char *name
,
1627 int fd
, int is_connected
)
1629 int so_type
=-1, optlen
=sizeof(so_type
);
1631 if(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&so_type
,
1632 (socklen_t
*)&optlen
)< 0) {
1633 fprintf(stderr
, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd
);
1638 return net_socket_fd_init_dgram(vlan
, model
, name
, fd
, is_connected
);
1640 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
1642 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1643 fprintf(stderr
, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type
, fd
);
1644 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
1649 static void net_socket_accept(void *opaque
)
1651 NetSocketListenState
*s
= opaque
;
1653 struct sockaddr_in saddr
;
1658 len
= sizeof(saddr
);
1659 fd
= accept(s
->fd
, (struct sockaddr
*)&saddr
, &len
);
1660 if (fd
< 0 && errno
!= EINTR
) {
1662 } else if (fd
>= 0) {
1666 s1
= net_socket_fd_init(s
->vlan
, s
->model
, s
->name
, fd
, 1);
1670 snprintf(s1
->vc
->info_str
, sizeof(s1
->vc
->info_str
),
1671 "socket: connection from %s:%d",
1672 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1676 static int net_socket_listen_init(VLANState
*vlan
,
1679 const char *host_str
)
1681 NetSocketListenState
*s
;
1683 struct sockaddr_in saddr
;
1685 if (parse_host_port(&saddr
, host_str
) < 0)
1688 s
= qemu_mallocz(sizeof(NetSocketListenState
));
1690 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
1695 socket_set_nonblock(fd
);
1697 /* allow fast reuse */
1699 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (const char *)&val
, sizeof(val
));
1701 ret
= bind(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
1706 ret
= listen(fd
, 0);
1712 s
->model
= strdup(model
);
1713 s
->name
= name
? strdup(name
) : NULL
;
1715 qemu_set_fd_handler(fd
, net_socket_accept
, NULL
, s
);
1719 static int net_socket_connect_init(VLANState
*vlan
,
1722 const char *host_str
)
1725 int fd
, connected
, ret
, err
;
1726 struct sockaddr_in saddr
;
1728 if (parse_host_port(&saddr
, host_str
) < 0)
1731 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
1736 socket_set_nonblock(fd
);
1740 ret
= connect(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
1742 err
= socket_error();
1743 if (err
== EINTR
|| err
== EWOULDBLOCK
) {
1744 } else if (err
== EINPROGRESS
) {
1747 } else if (err
== WSAEALREADY
) {
1760 s
= net_socket_fd_init(vlan
, model
, name
, fd
, connected
);
1763 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1764 "socket: connect to %s:%d",
1765 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1769 static int net_socket_mcast_init(VLANState
*vlan
,
1772 const char *host_str
)
1776 struct sockaddr_in saddr
;
1778 if (parse_host_port(&saddr
, host_str
) < 0)
1782 fd
= net_socket_mcast_create(&saddr
);
1786 s
= net_socket_fd_init(vlan
, model
, name
, fd
, 0);
1790 s
->dgram_dst
= saddr
;
1792 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1793 "socket: mcast=%s:%d",
1794 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1799 typedef struct DumpState
{
1800 VLANClientState
*pcap_vc
;
1805 #define PCAP_MAGIC 0xa1b2c3d4
1807 struct pcap_file_hdr
{
1809 uint16_t version_major
;
1810 uint16_t version_minor
;
1817 struct pcap_sf_pkthdr
{
1826 static void dump_receive(void *opaque
, const uint8_t *buf
, int size
)
1828 DumpState
*s
= opaque
;
1829 struct pcap_sf_pkthdr hdr
;
1833 /* Early return in case of previous error. */
1838 ts
= muldiv64(qemu_get_clock(vm_clock
), 1000000, ticks_per_sec
);
1839 caplen
= size
> s
->pcap_caplen
? s
->pcap_caplen
: size
;
1841 hdr
.ts
.tv_sec
= ts
/ 1000000;
1842 hdr
.ts
.tv_usec
= ts
% 1000000;
1843 hdr
.caplen
= caplen
;
1845 if (write(s
->fd
, &hdr
, sizeof(hdr
)) != sizeof(hdr
) ||
1846 write(s
->fd
, buf
, caplen
) != caplen
) {
1847 qemu_log("-net dump write error - stop dump\n");
1853 static void net_dump_cleanup(VLANClientState
*vc
)
1855 DumpState
*s
= vc
->opaque
;
1861 static int net_dump_init(Monitor
*mon
, VLANState
*vlan
, const char *device
,
1862 const char *name
, const char *filename
, int len
)
1864 struct pcap_file_hdr hdr
;
1867 s
= qemu_malloc(sizeof(DumpState
));
1869 s
->fd
= open(filename
, O_CREAT
| O_WRONLY
, 0644);
1871 config_error(mon
, "-net dump: can't open %s\n", filename
);
1875 s
->pcap_caplen
= len
;
1877 hdr
.magic
= PCAP_MAGIC
;
1878 hdr
.version_major
= 2;
1879 hdr
.version_minor
= 4;
1882 hdr
.snaplen
= s
->pcap_caplen
;
1885 if (write(s
->fd
, &hdr
, sizeof(hdr
)) < sizeof(hdr
)) {
1886 config_error(mon
, "-net dump write error: %s\n", strerror(errno
));
1892 s
->pcap_vc
= qemu_new_vlan_client(vlan
, device
, name
, dump_receive
, NULL
,
1893 net_dump_cleanup
, s
);
1894 snprintf(s
->pcap_vc
->info_str
, sizeof(s
->pcap_vc
->info_str
),
1895 "dump to %s (len=%d)", filename
, len
);
1899 /* find or alloc a new VLAN */
1900 VLANState
*qemu_find_vlan(int id
)
1902 VLANState
**pvlan
, *vlan
;
1903 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1907 vlan
= qemu_mallocz(sizeof(VLANState
));
1910 pvlan
= &first_vlan
;
1911 while (*pvlan
!= NULL
)
1912 pvlan
= &(*pvlan
)->next
;
1917 static int nic_get_free_idx(void)
1921 for (index
= 0; index
< MAX_NICS
; index
++)
1922 if (!nd_table
[index
].used
)
1927 void qemu_check_nic_model(NICInfo
*nd
, const char *model
)
1929 const char *models
[2];
1934 qemu_check_nic_model_list(nd
, models
, model
);
1937 void qemu_check_nic_model_list(NICInfo
*nd
, const char * const *models
,
1938 const char *default_model
)
1940 int i
, exit_status
= 0;
1943 nd
->model
= strdup(default_model
);
1945 if (strcmp(nd
->model
, "?") != 0) {
1946 for (i
= 0 ; models
[i
]; i
++)
1947 if (strcmp(nd
->model
, models
[i
]) == 0)
1950 fprintf(stderr
, "qemu: Unsupported NIC model: %s\n", nd
->model
);
1954 fprintf(stderr
, "qemu: Supported NIC models: ");
1955 for (i
= 0 ; models
[i
]; i
++)
1956 fprintf(stderr
, "%s%c", models
[i
], models
[i
+1] ? ',' : '\n');
1961 int net_client_init(Monitor
*mon
, const char *device
, const char *p
)
1963 static const char * const fd_params
[] = {
1964 "vlan", "name", "fd", NULL
1972 if (get_param_value(buf
, sizeof(buf
), "vlan", p
)) {
1973 vlan_id
= strtol(buf
, NULL
, 0);
1975 vlan
= qemu_find_vlan(vlan_id
);
1977 if (get_param_value(buf
, sizeof(buf
), "name", p
)) {
1978 name
= qemu_strdup(buf
);
1980 if (!strcmp(device
, "nic")) {
1981 static const char * const nic_params
[] = {
1982 "vlan", "name", "macaddr", "model", NULL
1986 int idx
= nic_get_free_idx();
1988 if (check_params(buf
, sizeof(buf
), nic_params
, p
) < 0) {
1989 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
1993 if (idx
== -1 || nb_nics
>= MAX_NICS
) {
1994 config_error(mon
, "Too Many NICs\n");
1998 nd
= &nd_table
[idx
];
1999 macaddr
= nd
->macaddr
;
2005 macaddr
[5] = 0x56 + idx
;
2007 if (get_param_value(buf
, sizeof(buf
), "macaddr", p
)) {
2008 if (parse_macaddr(macaddr
, buf
) < 0) {
2009 config_error(mon
, "invalid syntax for ethernet address\n");
2014 if (get_param_value(buf
, sizeof(buf
), "model", p
)) {
2015 nd
->model
= strdup(buf
);
2022 vlan
->nb_guest_devs
++;
2025 if (!strcmp(device
, "none")) {
2027 config_error(mon
, "'none' takes no parameters\n");
2031 /* does nothing. It is needed to signal that no network cards
2036 if (!strcmp(device
, "user")) {
2037 static const char * const slirp_params
[] = {
2038 "vlan", "name", "hostname", "restrict", "ip", NULL
2043 if (check_params(buf
, sizeof(buf
), slirp_params
, p
) < 0) {
2044 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2048 if (get_param_value(buf
, sizeof(buf
), "hostname", p
)) {
2049 pstrcpy(slirp_hostname
, sizeof(slirp_hostname
), buf
);
2051 if (get_param_value(buf
, sizeof(buf
), "restrict", p
)) {
2052 restricted
= (buf
[0] == 'y') ? 1 : 0;
2054 if (get_param_value(buf
, sizeof(buf
), "ip", p
)) {
2055 ip
= qemu_strdup(buf
);
2057 vlan
->nb_host_devs
++;
2058 ret
= net_slirp_init(vlan
, device
, name
, restricted
, ip
);
2060 } else if (!strcmp(device
, "channel")) {
2062 char name
[20], *devname
;
2063 struct VMChannel
*vmc
;
2065 port
= strtol(p
, &devname
, 10);
2067 if (port
< 1 || port
> 65535) {
2068 config_error(mon
, "vmchannel wrong port number\n");
2072 vmc
= malloc(sizeof(struct VMChannel
));
2073 snprintf(name
, 20, "vmchannel%ld", port
);
2074 vmc
->hd
= qemu_chr_open(name
, devname
, NULL
);
2076 config_error(mon
, "could not open vmchannel device '%s'\n",
2082 slirp_add_exec(3, vmc
->hd
, 4, port
);
2083 qemu_chr_add_handlers(vmc
->hd
, vmchannel_can_read
, vmchannel_read
,
2089 if (!strcmp(device
, "tap")) {
2090 static const char * const tap_params
[] = {
2091 "vlan", "name", "ifname", NULL
2095 if (check_params(buf
, sizeof(buf
), tap_params
, p
) < 0) {
2096 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2100 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2101 config_error(mon
, "tap: no interface name\n");
2105 vlan
->nb_host_devs
++;
2106 ret
= tap_win32_init(vlan
, device
, name
, ifname
);
2108 #elif defined (_AIX)
2110 if (!strcmp(device
, "tap")) {
2111 char ifname
[64], chkbuf
[64];
2112 char setup_script
[1024], down_script
[1024];
2114 vlan
->nb_host_devs
++;
2115 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2116 if (check_params(chkbuf
, sizeof(chkbuf
), fd_params
, p
) < 0) {
2117 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2121 fd
= strtol(buf
, NULL
, 0);
2122 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
2123 net_tap_fd_init(vlan
, device
, name
, fd
);
2126 static const char * const tap_params
[] = {
2127 "vlan", "name", "ifname", "script", "downscript", NULL
2129 if (check_params(chkbuf
, sizeof(chkbuf
), tap_params
, p
) < 0) {
2130 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2134 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2137 if (get_param_value(setup_script
, sizeof(setup_script
), "script", p
) == 0) {
2138 pstrcpy(setup_script
, sizeof(setup_script
), DEFAULT_NETWORK_SCRIPT
);
2140 if (get_param_value(down_script
, sizeof(down_script
), "downscript", p
) == 0) {
2141 pstrcpy(down_script
, sizeof(down_script
), DEFAULT_NETWORK_DOWN_SCRIPT
);
2143 ret
= net_tap_init(vlan
, device
, name
, ifname
, setup_script
, down_script
);
2147 if (!strcmp(device
, "socket")) {
2149 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2151 if (check_params(chkbuf
, sizeof(chkbuf
), fd_params
, p
) < 0) {
2152 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2156 fd
= strtol(buf
, NULL
, 0);
2158 if (net_socket_fd_init(vlan
, device
, name
, fd
, 1))
2160 } else if (get_param_value(buf
, sizeof(buf
), "listen", p
) > 0) {
2161 static const char * const listen_params
[] = {
2162 "vlan", "name", "listen", NULL
2164 if (check_params(chkbuf
, sizeof(chkbuf
), listen_params
, p
) < 0) {
2165 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2169 ret
= net_socket_listen_init(vlan
, device
, name
, buf
);
2170 } else if (get_param_value(buf
, sizeof(buf
), "connect", p
) > 0) {
2171 static const char * const connect_params
[] = {
2172 "vlan", "name", "connect", NULL
2174 if (check_params(chkbuf
, sizeof(chkbuf
), connect_params
, p
) < 0) {
2175 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2179 ret
= net_socket_connect_init(vlan
, device
, name
, buf
);
2180 } else if (get_param_value(buf
, sizeof(buf
), "mcast", p
) > 0) {
2181 static const char * const mcast_params
[] = {
2182 "vlan", "name", "mcast", NULL
2184 if (check_params(chkbuf
, sizeof(chkbuf
), mcast_params
, p
) < 0) {
2185 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2189 ret
= net_socket_mcast_init(vlan
, device
, name
, buf
);
2191 config_error(mon
, "Unknown socket options: %s\n", p
);
2195 vlan
->nb_host_devs
++;
2198 if (!strcmp(device
, "vde")) {
2199 static const char * const vde_params
[] = {
2200 "vlan", "name", "sock", "port", "group", "mode", NULL
2202 char vde_sock
[1024], vde_group
[512];
2203 int vde_port
, vde_mode
;
2205 if (check_params(buf
, sizeof(buf
), vde_params
, p
) < 0) {
2206 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2210 vlan
->nb_host_devs
++;
2211 if (get_param_value(vde_sock
, sizeof(vde_sock
), "sock", p
) <= 0) {
2214 if (get_param_value(buf
, sizeof(buf
), "port", p
) > 0) {
2215 vde_port
= strtol(buf
, NULL
, 10);
2219 if (get_param_value(vde_group
, sizeof(vde_group
), "group", p
) <= 0) {
2220 vde_group
[0] = '\0';
2222 if (get_param_value(buf
, sizeof(buf
), "mode", p
) > 0) {
2223 vde_mode
= strtol(buf
, NULL
, 8);
2227 ret
= net_vde_init(vlan
, device
, name
, vde_sock
, vde_port
, vde_group
, vde_mode
);
2230 if (!strcmp(device
, "dump")) {
2233 if (get_param_value(buf
, sizeof(buf
), "len", p
) > 0) {
2234 len
= strtol(buf
, NULL
, 0);
2236 if (!get_param_value(buf
, sizeof(buf
), "file", p
)) {
2237 snprintf(buf
, sizeof(buf
), "qemu-vlan%d.pcap", vlan_id
);
2239 ret
= net_dump_init(mon
, vlan
, device
, name
, buf
, len
);
2241 config_error(mon
, "Unknown network device: %s\n", device
);
2246 config_error(mon
, "Could not initialize device '%s'\n", device
);
2253 void net_client_uninit(NICInfo
*nd
)
2255 nd
->vlan
->nb_guest_devs
--;
2258 free((void *)nd
->model
);
2261 static int net_host_check_device(const char *device
)
2264 const char *valid_param_list
[] = { "tap", "socket", "dump"
2272 for (i
= 0; i
< sizeof(valid_param_list
) / sizeof(char *); i
++) {
2273 if (!strncmp(valid_param_list
[i
], device
,
2274 strlen(valid_param_list
[i
])))
2281 void net_host_device_add(Monitor
*mon
, const char *device
, const char *opts
)
2283 if (!net_host_check_device(device
)) {
2284 monitor_printf(mon
, "invalid host network device %s\n", device
);
2287 if (net_client_init(mon
, device
, opts
? opts
: "") < 0) {
2288 monitor_printf(mon
, "adding host network device %s failed\n", device
);
2292 void net_host_device_remove(Monitor
*mon
, int vlan_id
, const char *device
)
2295 VLANClientState
*vc
;
2297 vlan
= qemu_find_vlan(vlan_id
);
2299 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
2300 if (!strcmp(vc
->name
, device
)) {
2306 monitor_printf(mon
, "can't find device %s\n", device
);
2309 if (!net_host_check_device(vc
->model
)) {
2310 monitor_printf(mon
, "invalid host network device %s\n", device
);
2313 qemu_del_vlan_client(vc
);
2316 int net_client_parse(const char *str
)
2324 while (*p
!= '\0' && *p
!= ',') {
2325 if ((q
- device
) < sizeof(device
) - 1)
2333 return net_client_init(NULL
, device
, p
);
2336 void do_info_network(Monitor
*mon
)
2339 VLANClientState
*vc
;
2341 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2342 monitor_printf(mon
, "VLAN %d devices:\n", vlan
->id
);
2343 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2344 monitor_printf(mon
, " %s: %s\n", vc
->name
, vc
->info_str
);
2348 int do_set_link(Monitor
*mon
, const char *name
, const char *up_or_down
)
2351 VLANClientState
*vc
= NULL
;
2353 for (vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
)
2354 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2355 if (strcmp(vc
->name
, name
) == 0)
2360 monitor_printf(mon
, "could not find network device '%s'", name
);
2364 if (strcmp(up_or_down
, "up") == 0)
2366 else if (strcmp(up_or_down
, "down") == 0)
2369 monitor_printf(mon
, "invalid link status '%s'; only 'up' or 'down' "
2370 "valid\n", up_or_down
);
2372 if (vc
->link_status_changed
)
2373 vc
->link_status_changed(vc
);
2378 void net_cleanup(void)
2382 /* close network clients */
2383 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2384 VLANClientState
*vc
= vlan
->first_client
;
2387 VLANClientState
*next
= vc
->next
;
2389 qemu_del_vlan_client(vc
);
2396 void net_client_check(void)
2400 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2401 if (vlan
->nb_guest_devs
== 0 && vlan
->nb_host_devs
== 0)
2403 if (vlan
->nb_guest_devs
== 0)
2404 fprintf(stderr
, "Warning: vlan %d with no nics\n", vlan
->id
);
2405 if (vlan
->nb_host_devs
== 0)
2407 "Warning: vlan %d is not connected to host network\n",