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
24 #include "qemu-common.h"
28 #include "qemu-timer.h"
29 #include "qemu-char.h"
30 #include "audio/audio.h"
41 #include <sys/times.h>
45 #include <sys/ioctl.h>
46 #include <sys/resource.h>
47 #include <sys/socket.h>
48 #include <netinet/in.h>
51 #include <net/if_tap.h>
54 #include <linux/if_tun.h>
56 #include <arpa/inet.h>
59 #include <sys/select.h>
67 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
68 #include <freebsd/stdlib.h>
73 #include <linux/rtc.h>
75 /* For the benefit of older linux systems which don't supply it,
76 we use a local copy of hpet.h. */
77 /* #include <linux/hpet.h> */
80 #include <linux/ppdev.h>
81 #include <linux/parport.h>
85 #include <sys/ethernet.h>
86 #include <sys/sockio.h>
87 #include <netinet/arp.h>
88 #include <netinet/in.h>
89 #include <netinet/in_systm.h>
90 #include <netinet/ip.h>
91 #include <netinet/ip_icmp.h> // must come after ip.h
92 #include <netinet/udp.h>
93 #include <netinet/tcp.h>
101 #include "qemu_socket.h"
103 #if defined(CONFIG_SLIRP)
104 #include "libslirp.h"
107 #if defined(__OpenBSD__)
111 #if defined(CONFIG_VDE)
112 #include <libvdeplug.h>
117 #include <sys/timeb.h>
118 #include <mmsystem.h>
119 #define getopt_long_only getopt_long
120 #define memalign(align, size) malloc(size)
123 static VLANState
*first_vlan
;
125 /***********************************************************/
126 /* network device redirectors */
128 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
129 static void hex_dump(FILE *f
, const uint8_t *buf
, int size
)
133 for(i
=0;i
<size
;i
+=16) {
137 fprintf(f
, "%08x ", i
);
140 fprintf(f
, " %02x", buf
[i
+j
]);
147 if (c
< ' ' || c
> '~')
156 static int parse_macaddr(uint8_t *macaddr
, const char *p
)
163 offset
= strtol(p
, &last_char
, 0);
164 if (0 == errno
&& '\0' == *last_char
&&
165 offset
>= 0 && offset
<= 0xFFFFFF) {
166 macaddr
[3] = (offset
& 0xFF0000) >> 16;
167 macaddr
[4] = (offset
& 0xFF00) >> 8;
168 macaddr
[5] = offset
& 0xFF;
171 for(i
= 0; i
< 6; i
++) {
172 macaddr
[i
] = strtol(p
, (char **)&p
, 16);
177 if (*p
!= ':' && *p
!= '-')
188 static int get_str_sep(char *buf
, int buf_size
, const char **pp
, int sep
)
199 if (len
> buf_size
- 1)
208 int parse_host_src_port(struct sockaddr_in
*haddr
,
209 struct sockaddr_in
*saddr
,
210 const char *input_str
)
212 char *str
= strdup(input_str
);
213 char *host_str
= str
;
215 const char *src_str2
;
219 * Chop off any extra arguments at the end of the string which
220 * would start with a comma, then fill in the src port information
221 * if it was provided else use the "any address" and "any port".
223 if ((ptr
= strchr(str
,',')))
226 if ((src_str
= strchr(input_str
,'@'))) {
231 if (parse_host_port(haddr
, host_str
) < 0)
235 if (!src_str
|| *src_str
== '\0')
238 if (parse_host_port(saddr
, src_str2
) < 0)
249 int parse_host_port(struct sockaddr_in
*saddr
, const char *str
)
257 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
259 saddr
->sin_family
= AF_INET
;
260 if (buf
[0] == '\0') {
261 saddr
->sin_addr
.s_addr
= 0;
263 if (qemu_isdigit(buf
[0])) {
264 if (!inet_aton(buf
, &saddr
->sin_addr
))
267 if ((he
= gethostbyname(buf
)) == NULL
)
269 saddr
->sin_addr
= *(struct in_addr
*)he
->h_addr
;
272 port
= strtol(p
, (char **)&r
, 0);
275 saddr
->sin_port
= htons(port
);
279 #if !defined(_WIN32) && 0
280 static int parse_unix_path(struct sockaddr_un
*uaddr
, const char *str
)
285 len
= MIN(108, strlen(str
));
286 p
= strchr(str
, ',');
288 len
= MIN(len
, p
- str
);
290 memset(uaddr
, 0, sizeof(*uaddr
));
292 uaddr
->sun_family
= AF_UNIX
;
293 memcpy(uaddr
->sun_path
, str
, len
);
299 void qemu_format_nic_info_str(VLANClientState
*vc
, uint8_t macaddr
[6])
301 snprintf(vc
->info_str
, sizeof(vc
->info_str
),
302 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
304 macaddr
[0], macaddr
[1], macaddr
[2],
305 macaddr
[3], macaddr
[4], macaddr
[5]);
308 static char *assign_name(VLANClientState
*vc1
, const char *model
)
314 for (vlan
= first_vlan
; vlan
; vlan
= vlan
->next
) {
317 for (vc
= vlan
->first_client
; vc
; vc
= vc
->next
)
318 if (vc
!= vc1
&& strcmp(vc
->model
, model
) == 0)
322 snprintf(buf
, sizeof(buf
), "%s.%d", model
, id
);
327 VLANClientState
*qemu_new_vlan_client(VLANState
*vlan
,
330 IOReadHandler
*fd_read
,
331 IOCanRWHandler
*fd_can_read
,
334 VLANClientState
*vc
, **pvc
;
335 vc
= qemu_mallocz(sizeof(VLANClientState
));
338 vc
->model
= strdup(model
);
340 vc
->name
= strdup(name
);
342 vc
->name
= assign_name(vc
, model
);
343 vc
->fd_read
= fd_read
;
344 vc
->fd_can_read
= fd_can_read
;
349 pvc
= &vlan
->first_client
;
356 void qemu_del_vlan_client(VLANClientState
*vc
)
358 VLANClientState
**pvc
= &vc
->vlan
->first_client
;
371 int qemu_can_send_packet(VLANClientState
*vc1
)
373 VLANState
*vlan
= vc1
->vlan
;
376 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
378 if (vc
->fd_can_read
&& vc
->fd_can_read(vc
->opaque
))
385 void qemu_send_packet(VLANClientState
*vc1
, const uint8_t *buf
, int size
)
387 VLANState
*vlan
= vc1
->vlan
;
391 printf("vlan %d send:\n", vlan
->id
);
392 hex_dump(stdout
, buf
, size
);
394 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
396 vc
->fd_read(vc
->opaque
, buf
, size
);
401 static ssize_t
vc_sendv_compat(VLANClientState
*vc
, const struct iovec
*iov
,
404 uint8_t buffer
[4096];
408 for (i
= 0; i
< iovcnt
; i
++) {
411 len
= MIN(sizeof(buffer
) - offset
, iov
[i
].iov_len
);
412 memcpy(buffer
+ offset
, iov
[i
].iov_base
, len
);
416 vc
->fd_read(vc
->opaque
, buffer
, offset
);
421 ssize_t
qemu_sendv_packet(VLANClientState
*vc1
, const struct iovec
*iov
,
424 VLANState
*vlan
= vc1
->vlan
;
428 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
435 len
= vc
->fd_readv(vc
->opaque
, iov
, iovcnt
);
436 else if (vc
->fd_read
)
437 len
= vc_sendv_compat(vc
, iov
, iovcnt
);
439 max_len
= MAX(max_len
, len
);
445 #if defined(CONFIG_SLIRP)
447 /* slirp network adapter */
449 static int slirp_inited
;
450 static int slirp_restrict
;
451 static char *slirp_ip
;
452 static VLANClientState
*slirp_vc
;
454 int slirp_can_output(void)
456 return !slirp_vc
|| qemu_can_send_packet(slirp_vc
);
459 void slirp_output(const uint8_t *pkt
, int pkt_len
)
462 printf("slirp output:\n");
463 hex_dump(stdout
, pkt
, pkt_len
);
467 qemu_send_packet(slirp_vc
, pkt
, pkt_len
);
470 int slirp_is_inited(void)
475 static void slirp_receive(void *opaque
, const uint8_t *buf
, int size
)
478 printf("slirp input:\n");
479 hex_dump(stdout
, buf
, size
);
481 slirp_input(buf
, size
);
484 static int net_slirp_init(VLANState
*vlan
, const char *model
, const char *name
)
488 slirp_init(slirp_restrict
, slirp_ip
);
490 slirp_vc
= qemu_new_vlan_client(vlan
, model
, name
,
491 slirp_receive
, NULL
, NULL
);
492 slirp_vc
->info_str
[0] = '\0';
496 void net_slirp_redir(const char *redir_str
)
501 struct in_addr guest_addr
;
502 int host_port
, guest_port
;
506 slirp_init(slirp_restrict
, slirp_ip
);
510 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
512 if (!strcmp(buf
, "tcp")) {
514 } else if (!strcmp(buf
, "udp")) {
520 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
522 host_port
= strtol(buf
, &r
, 0);
526 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
528 if (buf
[0] == '\0') {
529 pstrcpy(buf
, sizeof(buf
), "10.0.2.15");
531 if (!inet_aton(buf
, &guest_addr
))
534 guest_port
= strtol(p
, &r
, 0);
538 if (slirp_redir(is_udp
, host_port
, guest_addr
, guest_port
) < 0) {
539 fprintf(stderr
, "qemu: could not set up redirection\n");
544 fprintf(stderr
, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
550 static char smb_dir
[1024];
552 static void erase_dir(char *dir_name
)
558 /* erase all the files in the directory */
559 if ((d
= opendir(dir_name
)) != 0) {
564 if (strcmp(de
->d_name
, ".") != 0 &&
565 strcmp(de
->d_name
, "..") != 0) {
566 snprintf(filename
, sizeof(filename
), "%s/%s",
567 smb_dir
, de
->d_name
);
568 if (unlink(filename
) != 0) /* is it a directory? */
577 /* automatic user mode samba server configuration */
578 static void smb_exit(void)
583 /* automatic user mode samba server configuration */
584 void net_slirp_smb(const char *exported_dir
)
587 char smb_cmdline
[1024];
592 slirp_init(slirp_restrict
, slirp_ip
);
595 /* XXX: better tmp dir construction */
596 snprintf(smb_dir
, sizeof(smb_dir
), "/tmp/qemu-smb.%d", getpid());
597 if (mkdir(smb_dir
, 0700) < 0) {
598 fprintf(stderr
, "qemu: could not create samba server dir '%s'\n", smb_dir
);
601 snprintf(smb_conf
, sizeof(smb_conf
), "%s/%s", smb_dir
, "smb.conf");
603 f
= fopen(smb_conf
, "w");
605 fprintf(stderr
, "qemu: could not create samba server configuration file '%s'\n", smb_conf
);
612 "socket address=127.0.0.1\n"
614 "lock directory=%s\n"
615 "log file=%s/log.smbd\n"
616 "smb passwd file=%s/smbpasswd\n"
632 snprintf(smb_cmdline
, sizeof(smb_cmdline
), "%s -s %s",
633 SMBD_COMMAND
, smb_conf
);
635 slirp_add_exec(0, smb_cmdline
, 4, 139);
638 #endif /* !defined(_WIN32) */
639 void do_info_slirp(void)
644 #endif /* CONFIG_SLIRP */
648 typedef struct TAPState
{
651 char down_script
[1024];
655 static ssize_t
tap_receive_iov(void *opaque
, const struct iovec
*iov
,
658 TAPState
*s
= opaque
;
662 len
= writev(s
->fd
, iov
, iovcnt
);
663 } while (len
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
669 static void tap_receive(void *opaque
, const uint8_t *buf
, int size
)
671 TAPState
*s
= opaque
;
674 ret
= write(s
->fd
, buf
, size
);
675 if (ret
< 0 && (errno
== EINTR
|| errno
== EAGAIN
)) {
682 static void tap_send(void *opaque
)
684 TAPState
*s
= opaque
;
691 sbuf
.maxlen
= sizeof(buf
);
693 size
= getmsg(s
->fd
, NULL
, &sbuf
, &f
) >=0 ? sbuf
.len
: -1;
695 size
= read(s
->fd
, buf
, sizeof(buf
));
698 qemu_send_packet(s
->vc
, buf
, size
);
704 static TAPState
*net_tap_fd_init(VLANState
*vlan
,
711 s
= qemu_mallocz(sizeof(TAPState
));
715 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, tap_receive
, NULL
, s
);
717 s
->vc
->fd_readv
= tap_receive_iov
;
719 qemu_set_fd_handler(s
->fd
, tap_send
, NULL
, s
);
720 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "fd=%d", fd
);
724 #if defined (_BSD) || defined (__FreeBSD_kernel__)
725 static int tap_open(char *ifname
, int ifname_size
)
731 TFR(fd
= open("/dev/tap", O_RDWR
));
733 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
738 dev
= devname(s
.st_rdev
, S_IFCHR
);
739 pstrcpy(ifname
, ifname_size
, dev
);
741 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
744 #elif defined(__sun__)
745 #define TUNNEWPPA (('T'<<16) | 0x0001)
747 * Allocate TAP device, returns opened fd.
748 * Stores dev name in the first arg(must be large enough).
750 int tap_alloc(char *dev
, size_t dev_size
)
752 int tap_fd
, if_fd
, ppa
= -1;
753 static int ip_fd
= 0;
756 static int arp_fd
= 0;
757 int ip_muxid
, arp_muxid
;
758 struct strioctl strioc_if
, strioc_ppa
;
759 int link_type
= I_PLINK
;;
761 char actual_name
[32] = "";
763 memset(&ifr
, 0x0, sizeof(ifr
));
767 while( *ptr
&& !qemu_isdigit((int)*ptr
) ) ptr
++;
771 /* Check if IP device was opened */
775 TFR(ip_fd
= open("/dev/udp", O_RDWR
, 0));
777 syslog(LOG_ERR
, "Can't open /dev/ip (actually /dev/udp)");
781 TFR(tap_fd
= open("/dev/tap", O_RDWR
, 0));
783 syslog(LOG_ERR
, "Can't open /dev/tap");
787 /* Assign a new PPA and get its unit number. */
788 strioc_ppa
.ic_cmd
= TUNNEWPPA
;
789 strioc_ppa
.ic_timout
= 0;
790 strioc_ppa
.ic_len
= sizeof(ppa
);
791 strioc_ppa
.ic_dp
= (char *)&ppa
;
792 if ((ppa
= ioctl (tap_fd
, I_STR
, &strioc_ppa
)) < 0)
793 syslog (LOG_ERR
, "Can't assign new interface");
795 TFR(if_fd
= open("/dev/tap", O_RDWR
, 0));
797 syslog(LOG_ERR
, "Can't open /dev/tap (2)");
800 if(ioctl(if_fd
, I_PUSH
, "ip") < 0){
801 syslog(LOG_ERR
, "Can't push IP module");
805 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) < 0)
806 syslog(LOG_ERR
, "Can't get flags\n");
808 snprintf (actual_name
, 32, "tap%d", ppa
);
809 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
812 /* Assign ppa according to the unit number returned by tun device */
814 if (ioctl (if_fd
, SIOCSLIFNAME
, &ifr
) < 0)
815 syslog (LOG_ERR
, "Can't set PPA %d", ppa
);
816 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) <0)
817 syslog (LOG_ERR
, "Can't get flags\n");
818 /* Push arp module to if_fd */
819 if (ioctl (if_fd
, I_PUSH
, "arp") < 0)
820 syslog (LOG_ERR
, "Can't push ARP module (2)");
822 /* Push arp module to ip_fd */
823 if (ioctl (ip_fd
, I_POP
, NULL
) < 0)
824 syslog (LOG_ERR
, "I_POP failed\n");
825 if (ioctl (ip_fd
, I_PUSH
, "arp") < 0)
826 syslog (LOG_ERR
, "Can't push ARP module (3)\n");
828 TFR(arp_fd
= open ("/dev/tap", O_RDWR
, 0));
830 syslog (LOG_ERR
, "Can't open %s\n", "/dev/tap");
832 /* Set ifname to arp */
833 strioc_if
.ic_cmd
= SIOCSLIFNAME
;
834 strioc_if
.ic_timout
= 0;
835 strioc_if
.ic_len
= sizeof(ifr
);
836 strioc_if
.ic_dp
= (char *)&ifr
;
837 if (ioctl(arp_fd
, I_STR
, &strioc_if
) < 0){
838 syslog (LOG_ERR
, "Can't set ifname to arp\n");
841 if((ip_muxid
= ioctl(ip_fd
, I_LINK
, if_fd
)) < 0){
842 syslog(LOG_ERR
, "Can't link TAP device to IP");
846 if ((arp_muxid
= ioctl (ip_fd
, link_type
, arp_fd
)) < 0)
847 syslog (LOG_ERR
, "Can't link TAP device to ARP");
851 memset(&ifr
, 0x0, sizeof(ifr
));
852 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
853 ifr
.lifr_ip_muxid
= ip_muxid
;
854 ifr
.lifr_arp_muxid
= arp_muxid
;
856 if (ioctl (ip_fd
, SIOCSLIFMUXID
, &ifr
) < 0)
858 ioctl (ip_fd
, I_PUNLINK
, arp_muxid
);
859 ioctl (ip_fd
, I_PUNLINK
, ip_muxid
);
860 syslog (LOG_ERR
, "Can't set multiplexor id");
863 snprintf(dev
, dev_size
, "tap%d", ppa
);
867 static int tap_open(char *ifname
, int ifname_size
)
871 if( (fd
= tap_alloc(dev
, sizeof(dev
))) < 0 ){
872 fprintf(stderr
, "Cannot allocate TAP device\n");
875 pstrcpy(ifname
, ifname_size
, dev
);
876 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
880 static int tap_open(char *ifname
, int ifname_size
)
882 fprintf (stderr
, "no tap on AIX\n");
886 static int tap_open(char *ifname
, int ifname_size
)
891 TFR(fd
= open("/dev/net/tun", O_RDWR
));
893 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
896 memset(&ifr
, 0, sizeof(ifr
));
897 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
898 if (ifname
[0] != '\0')
899 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, ifname
);
901 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tap%d");
902 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
904 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
908 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
909 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
914 static int launch_script(const char *setup_script
, const char *ifname
, int fd
)
920 /* try to launch network script */
924 int open_max
= sysconf (_SC_OPEN_MAX
), i
;
925 for (i
= 0; i
< open_max
; i
++)
926 if (i
!= STDIN_FILENO
&&
927 i
!= STDOUT_FILENO
&&
928 i
!= STDERR_FILENO
&&
933 *parg
++ = (char *)setup_script
;
934 *parg
++ = (char *)ifname
;
936 execv(setup_script
, args
);
939 while (waitpid(pid
, &status
, 0) != pid
);
940 if (!WIFEXITED(status
) ||
941 WEXITSTATUS(status
) != 0) {
942 fprintf(stderr
, "%s: could not launch network script\n",
950 static int net_tap_init(VLANState
*vlan
, const char *model
,
951 const char *name
, const char *ifname1
,
952 const char *setup_script
, const char *down_script
)
959 pstrcpy(ifname
, sizeof(ifname
), ifname1
);
962 TFR(fd
= tap_open(ifname
, sizeof(ifname
)));
966 if (!setup_script
|| !strcmp(setup_script
, "no"))
968 if (setup_script
[0] != '\0') {
969 if (launch_script(setup_script
, ifname
, fd
))
972 s
= net_tap_fd_init(vlan
, model
, name
, fd
);
975 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
976 "ifname=%s,script=%s,downscript=%s",
977 ifname
, setup_script
, down_script
);
978 if (down_script
&& strcmp(down_script
, "no"))
979 snprintf(s
->down_script
, sizeof(s
->down_script
), "%s", down_script
);
985 #if defined(CONFIG_VDE)
986 typedef struct VDEState
{
991 static void vde_to_qemu(void *opaque
)
993 VDEState
*s
= opaque
;
997 size
= vde_recv(s
->vde
, buf
, sizeof(buf
), 0);
999 qemu_send_packet(s
->vc
, buf
, size
);
1003 static void vde_from_qemu(void *opaque
, const uint8_t *buf
, int size
)
1005 VDEState
*s
= opaque
;
1008 ret
= vde_send(s
->vde
, buf
, size
, 0);
1009 if (ret
< 0 && errno
== EINTR
) {
1016 static int net_vde_init(VLANState
*vlan
, const char *model
,
1017 const char *name
, const char *sock
,
1018 int port
, const char *group
, int mode
)
1021 char *init_group
= strlen(group
) ? (char *)group
: NULL
;
1022 char *init_sock
= strlen(sock
) ? (char *)sock
: NULL
;
1024 struct vde_open_args args
= {
1026 .group
= init_group
,
1030 s
= qemu_mallocz(sizeof(VDEState
));
1033 s
->vde
= vde_open(init_sock
, "QEMU", &args
);
1038 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, vde_from_qemu
, NULL
, s
);
1039 qemu_set_fd_handler(vde_datafd(s
->vde
), vde_to_qemu
, NULL
, s
);
1040 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "sock=%s,fd=%d",
1041 sock
, vde_datafd(s
->vde
));
1046 /* network connection */
1047 typedef struct NetSocketState
{
1048 VLANClientState
*vc
;
1050 int state
; /* 0 = getting length, 1 = getting data */
1054 struct sockaddr_in dgram_dst
; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1057 typedef struct NetSocketListenState
{
1062 } NetSocketListenState
;
1064 /* XXX: we consider we can send the whole packet without blocking */
1065 static void net_socket_receive(void *opaque
, const uint8_t *buf
, int size
)
1067 NetSocketState
*s
= opaque
;
1071 send_all(s
->fd
, (const uint8_t *)&len
, sizeof(len
));
1072 send_all(s
->fd
, buf
, size
);
1075 static void net_socket_receive_dgram(void *opaque
, const uint8_t *buf
, int size
)
1077 NetSocketState
*s
= opaque
;
1078 sendto(s
->fd
, buf
, size
, 0,
1079 (struct sockaddr
*)&s
->dgram_dst
, sizeof(s
->dgram_dst
));
1082 static void net_socket_send(void *opaque
)
1084 NetSocketState
*s
= opaque
;
1089 size
= recv(s
->fd
, buf1
, sizeof(buf1
), 0);
1091 err
= socket_error();
1092 if (err
!= EWOULDBLOCK
)
1094 } else if (size
== 0) {
1095 /* end of connection */
1097 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1103 /* reassemble a packet from the network */
1109 memcpy(s
->buf
+ s
->index
, buf
, l
);
1113 if (s
->index
== 4) {
1115 s
->packet_len
= ntohl(*(uint32_t *)s
->buf
);
1121 l
= s
->packet_len
- s
->index
;
1124 memcpy(s
->buf
+ s
->index
, buf
, l
);
1128 if (s
->index
>= s
->packet_len
) {
1129 qemu_send_packet(s
->vc
, s
->buf
, s
->packet_len
);
1138 static void net_socket_send_dgram(void *opaque
)
1140 NetSocketState
*s
= opaque
;
1143 size
= recv(s
->fd
, s
->buf
, sizeof(s
->buf
), 0);
1147 /* end of connection */
1148 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1151 qemu_send_packet(s
->vc
, s
->buf
, size
);
1154 static int net_socket_mcast_create(struct sockaddr_in
*mcastaddr
)
1159 if (!IN_MULTICAST(ntohl(mcastaddr
->sin_addr
.s_addr
))) {
1160 fprintf(stderr
, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1161 inet_ntoa(mcastaddr
->sin_addr
),
1162 (int)ntohl(mcastaddr
->sin_addr
.s_addr
));
1166 fd
= socket(PF_INET
, SOCK_DGRAM
, 0);
1168 perror("socket(PF_INET, SOCK_DGRAM)");
1173 ret
=setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
,
1174 (const char *)&val
, sizeof(val
));
1176 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1180 ret
= bind(fd
, (struct sockaddr
*)mcastaddr
, sizeof(*mcastaddr
));
1186 /* Add host to multicast group */
1187 imr
.imr_multiaddr
= mcastaddr
->sin_addr
;
1188 imr
.imr_interface
.s_addr
= htonl(INADDR_ANY
);
1190 ret
= setsockopt(fd
, IPPROTO_IP
, IP_ADD_MEMBERSHIP
,
1191 (const char *)&imr
, sizeof(struct ip_mreq
));
1193 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1197 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1199 ret
=setsockopt(fd
, IPPROTO_IP
, IP_MULTICAST_LOOP
,
1200 (const char *)&val
, sizeof(val
));
1202 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1206 socket_set_nonblock(fd
);
1214 static NetSocketState
*net_socket_fd_init_dgram(VLANState
*vlan
,
1217 int fd
, int is_connected
)
1219 struct sockaddr_in saddr
;
1221 socklen_t saddr_len
;
1224 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1225 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1226 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1230 if (getsockname(fd
, (struct sockaddr
*) &saddr
, &saddr_len
) == 0) {
1232 if (saddr
.sin_addr
.s_addr
==0) {
1233 fprintf(stderr
, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1237 /* clone dgram socket */
1238 newfd
= net_socket_mcast_create(&saddr
);
1240 /* error already reported by net_socket_mcast_create() */
1244 /* clone newfd to fd, close newfd */
1249 fprintf(stderr
, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1250 fd
, strerror(errno
));
1255 s
= qemu_mallocz(sizeof(NetSocketState
));
1260 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, net_socket_receive_dgram
, NULL
, s
);
1261 qemu_set_fd_handler(s
->fd
, net_socket_send_dgram
, NULL
, s
);
1263 /* mcast: save bound address as dst */
1264 if (is_connected
) s
->dgram_dst
=saddr
;
1266 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1267 "socket: fd=%d (%s mcast=%s:%d)",
1268 fd
, is_connected
? "cloned" : "",
1269 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1273 static void net_socket_connect(void *opaque
)
1275 NetSocketState
*s
= opaque
;
1276 qemu_set_fd_handler(s
->fd
, net_socket_send
, NULL
, s
);
1279 static NetSocketState
*net_socket_fd_init_stream(VLANState
*vlan
,
1282 int fd
, int is_connected
)
1285 s
= qemu_mallocz(sizeof(NetSocketState
));
1289 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
,
1290 net_socket_receive
, NULL
, s
);
1291 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1292 "socket: fd=%d", fd
);
1294 net_socket_connect(s
);
1296 qemu_set_fd_handler(s
->fd
, NULL
, net_socket_connect
, s
);
1301 static NetSocketState
*net_socket_fd_init(VLANState
*vlan
,
1302 const char *model
, const char *name
,
1303 int fd
, int is_connected
)
1305 int so_type
=-1, optlen
=sizeof(so_type
);
1307 if(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&so_type
,
1308 (socklen_t
*)&optlen
)< 0) {
1309 fprintf(stderr
, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd
);
1314 return net_socket_fd_init_dgram(vlan
, model
, name
, fd
, is_connected
);
1316 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
1318 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1319 fprintf(stderr
, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type
, fd
);
1320 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
1325 static void net_socket_accept(void *opaque
)
1327 NetSocketListenState
*s
= opaque
;
1329 struct sockaddr_in saddr
;
1334 len
= sizeof(saddr
);
1335 fd
= accept(s
->fd
, (struct sockaddr
*)&saddr
, &len
);
1336 if (fd
< 0 && errno
!= EINTR
) {
1338 } else if (fd
>= 0) {
1342 s1
= net_socket_fd_init(s
->vlan
, s
->model
, s
->name
, fd
, 1);
1346 snprintf(s1
->vc
->info_str
, sizeof(s1
->vc
->info_str
),
1347 "socket: connection from %s:%d",
1348 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1352 static int net_socket_listen_init(VLANState
*vlan
,
1355 const char *host_str
)
1357 NetSocketListenState
*s
;
1359 struct sockaddr_in saddr
;
1361 if (parse_host_port(&saddr
, host_str
) < 0)
1364 s
= qemu_mallocz(sizeof(NetSocketListenState
));
1368 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
1373 socket_set_nonblock(fd
);
1375 /* allow fast reuse */
1377 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (const char *)&val
, sizeof(val
));
1379 ret
= bind(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
1384 ret
= listen(fd
, 0);
1390 s
->model
= strdup(model
);
1391 s
->name
= strdup(name
);
1393 qemu_set_fd_handler(fd
, net_socket_accept
, NULL
, s
);
1397 static int net_socket_connect_init(VLANState
*vlan
,
1400 const char *host_str
)
1403 int fd
, connected
, ret
, err
;
1404 struct sockaddr_in saddr
;
1406 if (parse_host_port(&saddr
, host_str
) < 0)
1409 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
1414 socket_set_nonblock(fd
);
1418 ret
= connect(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
1420 err
= socket_error();
1421 if (err
== EINTR
|| err
== EWOULDBLOCK
) {
1422 } else if (err
== EINPROGRESS
) {
1425 } else if (err
== WSAEALREADY
) {
1438 s
= net_socket_fd_init(vlan
, model
, name
, fd
, connected
);
1441 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1442 "socket: connect to %s:%d",
1443 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1447 static int net_socket_mcast_init(VLANState
*vlan
,
1450 const char *host_str
)
1454 struct sockaddr_in saddr
;
1456 if (parse_host_port(&saddr
, host_str
) < 0)
1460 fd
= net_socket_mcast_create(&saddr
);
1464 s
= net_socket_fd_init(vlan
, model
, name
, fd
, 0);
1468 s
->dgram_dst
= saddr
;
1470 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1471 "socket: mcast=%s:%d",
1472 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1477 /* find or alloc a new VLAN */
1478 VLANState
*qemu_find_vlan(int id
)
1480 VLANState
**pvlan
, *vlan
;
1481 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1485 vlan
= qemu_mallocz(sizeof(VLANState
));
1490 pvlan
= &first_vlan
;
1491 while (*pvlan
!= NULL
)
1492 pvlan
= &(*pvlan
)->next
;
1497 int net_client_init(const char *device
, const char *p
)
1505 if (get_param_value(buf
, sizeof(buf
), "vlan", p
)) {
1506 vlan_id
= strtol(buf
, NULL
, 0);
1508 vlan
= qemu_find_vlan(vlan_id
);
1510 fprintf(stderr
, "Could not create vlan %d\n", vlan_id
);
1513 if (get_param_value(buf
, sizeof(buf
), "name", p
)) {
1516 if (!strcmp(device
, "nic")) {
1520 if (nb_nics
>= MAX_NICS
) {
1521 fprintf(stderr
, "Too Many NICs\n");
1524 nd
= &nd_table
[nb_nics
];
1525 macaddr
= nd
->macaddr
;
1531 macaddr
[5] = 0x56 + nb_nics
;
1533 if (get_param_value(buf
, sizeof(buf
), "macaddr", p
)) {
1534 if (parse_macaddr(macaddr
, buf
) < 0) {
1535 fprintf(stderr
, "invalid syntax for ethernet address\n");
1539 if (get_param_value(buf
, sizeof(buf
), "model", p
)) {
1540 nd
->model
= strdup(buf
);
1546 vlan
->nb_guest_devs
++;
1549 if (!strcmp(device
, "none")) {
1550 /* does nothing. It is needed to signal that no network cards
1555 if (!strcmp(device
, "user")) {
1556 if (get_param_value(buf
, sizeof(buf
), "hostname", p
)) {
1557 pstrcpy(slirp_hostname
, sizeof(slirp_hostname
), buf
);
1559 if (get_param_value(buf
, sizeof(buf
), "restrict", p
)) {
1560 slirp_restrict
= (buf
[0] == 'y') ? 1 : 0;
1562 if (get_param_value(buf
, sizeof(buf
), "ip", p
)) {
1563 slirp_ip
= strdup(buf
);
1565 vlan
->nb_host_devs
++;
1566 ret
= net_slirp_init(vlan
, device
, name
);
1570 if (!strcmp(device
, "tap")) {
1572 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
1573 fprintf(stderr
, "tap: no interface name\n");
1576 vlan
->nb_host_devs
++;
1577 ret
= tap_win32_init(vlan
, device
, name
, ifname
);
1579 #elif defined (_AIX)
1581 if (!strcmp(device
, "tap")) {
1583 char setup_script
[1024], down_script
[1024];
1585 vlan
->nb_host_devs
++;
1586 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
1587 fd
= strtol(buf
, NULL
, 0);
1588 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1590 if (net_tap_fd_init(vlan
, device
, name
, fd
))
1593 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
1596 if (get_param_value(setup_script
, sizeof(setup_script
), "script", p
) == 0) {
1597 pstrcpy(setup_script
, sizeof(setup_script
), DEFAULT_NETWORK_SCRIPT
);
1599 if (get_param_value(down_script
, sizeof(down_script
), "downscript", p
) == 0) {
1600 pstrcpy(down_script
, sizeof(down_script
), DEFAULT_NETWORK_DOWN_SCRIPT
);
1602 ret
= net_tap_init(vlan
, device
, name
, ifname
, setup_script
, down_script
);
1606 if (!strcmp(device
, "socket")) {
1607 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
1609 fd
= strtol(buf
, NULL
, 0);
1611 if (net_socket_fd_init(vlan
, device
, name
, fd
, 1))
1613 } else if (get_param_value(buf
, sizeof(buf
), "listen", p
) > 0) {
1614 ret
= net_socket_listen_init(vlan
, device
, name
, buf
);
1615 } else if (get_param_value(buf
, sizeof(buf
), "connect", p
) > 0) {
1616 ret
= net_socket_connect_init(vlan
, device
, name
, buf
);
1617 } else if (get_param_value(buf
, sizeof(buf
), "mcast", p
) > 0) {
1618 ret
= net_socket_mcast_init(vlan
, device
, name
, buf
);
1620 fprintf(stderr
, "Unknown socket options: %s\n", p
);
1623 vlan
->nb_host_devs
++;
1626 if (!strcmp(device
, "vde")) {
1627 char vde_sock
[1024], vde_group
[512];
1628 int vde_port
, vde_mode
;
1629 vlan
->nb_host_devs
++;
1630 if (get_param_value(vde_sock
, sizeof(vde_sock
), "sock", p
) <= 0) {
1633 if (get_param_value(buf
, sizeof(buf
), "port", p
) > 0) {
1634 vde_port
= strtol(buf
, NULL
, 10);
1638 if (get_param_value(vde_group
, sizeof(vde_group
), "group", p
) <= 0) {
1639 vde_group
[0] = '\0';
1641 if (get_param_value(buf
, sizeof(buf
), "mode", p
) > 0) {
1642 vde_mode
= strtol(buf
, NULL
, 8);
1646 ret
= net_vde_init(vlan
, device
, name
, vde_sock
, vde_port
, vde_group
, vde_mode
);
1650 fprintf(stderr
, "Unknown network device: %s\n", device
);
1656 fprintf(stderr
, "Could not initialize device '%s'\n", device
);
1663 int net_client_parse(const char *str
)
1671 while (*p
!= '\0' && *p
!= ',') {
1672 if ((q
- device
) < sizeof(device
) - 1)
1680 return net_client_init(device
, p
);
1683 void do_info_network(void)
1686 VLANClientState
*vc
;
1688 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1689 term_printf("VLAN %d devices:\n", vlan
->id
);
1690 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
1691 term_printf(" %s: %s\n", vc
->name
, vc
->info_str
);
1695 void net_cleanup(void)
1699 #if !defined(_WIN32)
1700 /* close network clients */
1701 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1702 VLANClientState
*vc
;
1704 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
1705 if (vc
->fd_read
== tap_receive
) {
1707 TAPState
*s
= vc
->opaque
;
1709 if (strcmp(vc
->model
, "tap") == 0 &&
1710 sscanf(vc
->info_str
, "ifname=%63s ", ifname
) == 1 &&
1712 launch_script(s
->down_script
, ifname
, s
->fd
);
1714 #if defined(CONFIG_VDE)
1715 if (vc
->fd_read
== vde_from_qemu
) {
1716 VDEState
*s
= vc
->opaque
;
1725 void net_client_check(void)
1729 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1730 if (vlan
->nb_guest_devs
== 0 && vlan
->nb_host_devs
== 0)
1732 if (vlan
->nb_guest_devs
== 0)
1733 fprintf(stderr
, "Warning: vlan %d with no nics\n", vlan
->id
);
1734 if (vlan
->nb_host_devs
== 0)
1736 "Warning: vlan %d is not connected to host network\n",