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/osdep.h"
25 #include "chardev/char.h"
26 #include "io/channel-socket.h"
27 #include "io/channel-tls.h"
28 #include "io/net-listener.h"
29 #include "qemu/error-report.h"
30 #include "qapi/error.h"
31 #include "qapi/clone-visitor.h"
33 #include "chardev/char-io.h"
35 /***********************************************************/
38 #define TCP_MAX_FDS 16
42 QIOChannel
*ioc
; /* Client I/O channel */
43 QIOChannelSocket
*sioc
; /* Client master channel */
44 QIONetListener
*listener
;
46 QCryptoTLSCreds
*tls_creds
;
52 size_t read_msgfds_num
;
54 size_t write_msgfds_num
;
61 GSource
*reconnect_timer
;
62 int64_t reconnect_time
;
63 bool connect_err_reported
;
66 #define SOCKET_CHARDEV(obj) \
67 OBJECT_CHECK(SocketChardev, (obj), TYPE_CHARDEV_SOCKET)
69 static gboolean
socket_reconnect_timeout(gpointer opaque
);
71 static void tcp_chr_reconn_timer_cancel(SocketChardev
*s
)
73 if (s
->reconnect_timer
) {
74 g_source_destroy(s
->reconnect_timer
);
75 g_source_unref(s
->reconnect_timer
);
76 s
->reconnect_timer
= NULL
;
80 static void qemu_chr_socket_restart_timer(Chardev
*chr
)
82 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
85 assert(s
->connected
== 0);
86 name
= g_strdup_printf("chardev-socket-reconnect-%s", chr
->label
);
87 s
->reconnect_timer
= qemu_chr_timeout_add_ms(chr
,
88 s
->reconnect_time
* 1000,
89 socket_reconnect_timeout
,
91 g_source_set_name(s
->reconnect_timer
, name
);
95 static void check_report_connect_error(Chardev
*chr
,
98 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
100 if (!s
->connect_err_reported
) {
101 error_report("Unable to connect character device %s: %s",
102 chr
->label
, error_get_pretty(err
));
103 s
->connect_err_reported
= true;
105 qemu_chr_socket_restart_timer(chr
);
108 static void tcp_chr_accept(QIONetListener
*listener
,
109 QIOChannelSocket
*cioc
,
112 static int tcp_chr_read_poll(void *opaque
);
113 static void tcp_chr_disconnect(Chardev
*chr
);
115 /* Called with chr_write_lock held. */
116 static int tcp_chr_write(Chardev
*chr
, const uint8_t *buf
, int len
)
118 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
121 int ret
= io_channel_send_full(s
->ioc
, buf
, len
,
123 s
->write_msgfds_num
);
125 /* free the written msgfds, no matter what */
126 if (s
->write_msgfds_num
) {
127 g_free(s
->write_msgfds
);
129 s
->write_msgfds_num
= 0;
132 if (ret
< 0 && errno
!= EAGAIN
) {
133 if (tcp_chr_read_poll(chr
) <= 0) {
134 tcp_chr_disconnect(chr
);
136 } /* else let the read handler finish it properly */
141 /* XXX: indicate an error ? */
146 static int tcp_chr_read_poll(void *opaque
)
148 Chardev
*chr
= CHARDEV(opaque
);
149 SocketChardev
*s
= SOCKET_CHARDEV(opaque
);
153 s
->max_size
= qemu_chr_be_can_write(chr
);
157 static void tcp_chr_process_IAC_bytes(Chardev
*chr
,
159 uint8_t *buf
, int *size
)
161 /* Handle any telnet or tn3270 client's basic IAC options.
162 * For telnet options, it satisfies char by char mode with no echo.
163 * For tn3270 options, it satisfies binary mode with EOR.
164 * All IAC options will be removed from the buf and the do_opt
165 * pointer will be used to track the state of the width of the
168 * RFC854: "All TELNET commands consist of at least a two byte sequence.
169 * The commands dealing with option negotiation are three byte sequences,
170 * the third byte being the code for the option referenced."
171 * "IAC BREAK", "IAC IP", "IAC NOP" and the double IAC are two bytes.
172 * "IAC SB", "IAC SE" and "IAC EOR" are saved to split up data boundary
174 * NOP, Break and Interrupt Process(IP) might be encountered during a TN3270
175 * session, and NOP and IP need to be done later.
181 for (i
= 0; i
< *size
; i
++) {
182 if (s
->do_telnetopt
> 1) {
183 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
184 /* Double IAC means send an IAC */
191 if ((unsigned char)buf
[i
] == IAC_BREAK
192 && s
->do_telnetopt
== 2) {
193 /* Handle IAC break commands by sending a serial break */
194 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
196 } else if (s
->is_tn3270
&& ((unsigned char)buf
[i
] == IAC_EOR
197 || (unsigned char)buf
[i
] == IAC_SB
198 || (unsigned char)buf
[i
] == IAC_SE
)
199 && s
->do_telnetopt
== 2) {
203 } else if (s
->is_tn3270
&& ((unsigned char)buf
[i
] == IAC_IP
204 || (unsigned char)buf
[i
] == IAC_NOP
)
205 && s
->do_telnetopt
== 2) {
206 /* TODO: IP and NOP need to be implemented later. */
211 if (s
->do_telnetopt
>= 4) {
215 if ((unsigned char)buf
[i
] == IAC
) {
228 static int tcp_get_msgfds(Chardev
*chr
, int *fds
, int num
)
230 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
232 int to_copy
= (s
->read_msgfds_num
< num
) ? s
->read_msgfds_num
: num
;
234 assert(num
<= TCP_MAX_FDS
);
239 memcpy(fds
, s
->read_msgfds
, to_copy
* sizeof(int));
241 /* Close unused fds */
242 for (i
= to_copy
; i
< s
->read_msgfds_num
; i
++) {
243 close(s
->read_msgfds
[i
]);
246 g_free(s
->read_msgfds
);
248 s
->read_msgfds_num
= 0;
254 static int tcp_set_msgfds(Chardev
*chr
, int *fds
, int num
)
256 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
258 /* clear old pending fd array */
259 g_free(s
->write_msgfds
);
260 s
->write_msgfds
= NULL
;
261 s
->write_msgfds_num
= 0;
264 !qio_channel_has_feature(s
->ioc
,
265 QIO_CHANNEL_FEATURE_FD_PASS
)) {
270 s
->write_msgfds
= g_new(int, num
);
271 memcpy(s
->write_msgfds
, fds
, num
* sizeof(int));
274 s
->write_msgfds_num
= num
;
279 static ssize_t
tcp_chr_recv(Chardev
*chr
, char *buf
, size_t len
)
281 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
282 struct iovec iov
= { .iov_base
= buf
, .iov_len
= len
};
286 size_t msgfds_num
= 0;
288 if (qio_channel_has_feature(s
->ioc
, QIO_CHANNEL_FEATURE_FD_PASS
)) {
289 ret
= qio_channel_readv_full(s
->ioc
, &iov
, 1,
290 &msgfds
, &msgfds_num
,
293 ret
= qio_channel_readv_full(s
->ioc
, &iov
, 1,
298 if (ret
== QIO_CHANNEL_ERR_BLOCK
) {
301 } else if (ret
== -1) {
306 /* close and clean read_msgfds */
307 for (i
= 0; i
< s
->read_msgfds_num
; i
++) {
308 close(s
->read_msgfds
[i
]);
311 if (s
->read_msgfds_num
) {
312 g_free(s
->read_msgfds
);
315 s
->read_msgfds
= msgfds
;
316 s
->read_msgfds_num
= msgfds_num
;
319 for (i
= 0; i
< s
->read_msgfds_num
; i
++) {
320 int fd
= s
->read_msgfds
[i
];
325 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
328 #ifndef MSG_CMSG_CLOEXEC
329 qemu_set_cloexec(fd
);
336 static GSource
*tcp_chr_add_watch(Chardev
*chr
, GIOCondition cond
)
338 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
339 return qio_channel_create_watch(s
->ioc
, cond
);
342 static void tcp_chr_free_connection(Chardev
*chr
)
344 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
347 if (s
->read_msgfds_num
) {
348 for (i
= 0; i
< s
->read_msgfds_num
; i
++) {
349 close(s
->read_msgfds
[i
]);
351 g_free(s
->read_msgfds
);
352 s
->read_msgfds
= NULL
;
353 s
->read_msgfds_num
= 0;
356 if (s
->hup_source
!= NULL
) {
357 g_source_destroy(s
->hup_source
);
358 g_source_unref(s
->hup_source
);
359 s
->hup_source
= NULL
;
362 tcp_set_msgfds(chr
, NULL
, 0);
363 remove_fd_in_watch(chr
);
364 object_unref(OBJECT(s
->sioc
));
366 object_unref(OBJECT(s
->ioc
));
368 g_free(chr
->filename
);
369 chr
->filename
= NULL
;
373 static char *SocketAddress_to_str(const char *prefix
, SocketAddress
*addr
,
374 bool is_listen
, bool is_telnet
)
376 switch (addr
->type
) {
377 case SOCKET_ADDRESS_TYPE_INET
:
378 return g_strdup_printf("%s%s:%s:%s%s", prefix
,
379 is_telnet
? "telnet" : "tcp",
382 is_listen
? ",server" : "");
384 case SOCKET_ADDRESS_TYPE_UNIX
:
385 return g_strdup_printf("%sunix:%s%s", prefix
,
387 is_listen
? ",server" : "");
389 case SOCKET_ADDRESS_TYPE_FD
:
390 return g_strdup_printf("%sfd:%s%s", prefix
, addr
->u
.fd
.str
,
391 is_listen
? ",server" : "");
393 case SOCKET_ADDRESS_TYPE_VSOCK
:
394 return g_strdup_printf("%svsock:%s:%s", prefix
,
402 static void update_disconnected_filename(SocketChardev
*s
)
404 Chardev
*chr
= CHARDEV(s
);
406 g_free(chr
->filename
);
407 chr
->filename
= SocketAddress_to_str("disconnected:", s
->addr
,
408 s
->is_listen
, s
->is_telnet
);
411 /* NB may be called even if tcp_chr_connect has not been
412 * reached, due to TLS or telnet initialization failure,
413 * so can *not* assume s->connected == true
415 static void tcp_chr_disconnect(Chardev
*chr
)
417 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
418 bool emit_close
= s
->connected
;
420 tcp_chr_free_connection(chr
);
423 qio_net_listener_set_client_func(s
->listener
, tcp_chr_accept
,
426 update_disconnected_filename(s
);
428 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
430 if (s
->reconnect_time
) {
431 qemu_chr_socket_restart_timer(chr
);
435 static gboolean
tcp_chr_read(QIOChannel
*chan
, GIOCondition cond
, void *opaque
)
437 Chardev
*chr
= CHARDEV(opaque
);
438 SocketChardev
*s
= SOCKET_CHARDEV(opaque
);
439 uint8_t buf
[CHR_READ_BUF_LEN
];
442 if (!s
->connected
|| s
->max_size
<= 0) {
446 if (len
> s
->max_size
) {
449 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
450 if (size
== 0 || size
== -1) {
451 /* connection closed */
452 tcp_chr_disconnect(chr
);
453 } else if (size
> 0) {
454 if (s
->do_telnetopt
) {
455 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
458 qemu_chr_be_write(chr
, buf
, size
);
465 static gboolean
tcp_chr_hup(QIOChannel
*channel
,
469 Chardev
*chr
= CHARDEV(opaque
);
470 tcp_chr_disconnect(chr
);
471 return G_SOURCE_REMOVE
;
474 static int tcp_chr_sync_read(Chardev
*chr
, const uint8_t *buf
, int len
)
476 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
483 qio_channel_set_blocking(s
->ioc
, true, NULL
);
484 size
= tcp_chr_recv(chr
, (void *) buf
, len
);
485 qio_channel_set_blocking(s
->ioc
, false, NULL
);
487 /* connection closed */
488 tcp_chr_disconnect(chr
);
494 static char *sockaddr_to_str(struct sockaddr_storage
*ss
, socklen_t ss_len
,
495 struct sockaddr_storage
*ps
, socklen_t ps_len
,
496 bool is_listen
, bool is_telnet
)
498 char shost
[NI_MAXHOST
], sserv
[NI_MAXSERV
];
499 char phost
[NI_MAXHOST
], pserv
[NI_MAXSERV
];
500 const char *left
= "", *right
= "";
502 switch (ss
->ss_family
) {
505 return g_strdup_printf("unix:%s%s",
506 ((struct sockaddr_un
*)(ss
))->sun_path
,
507 is_listen
? ",server" : "");
514 getnameinfo((struct sockaddr
*) ss
, ss_len
, shost
, sizeof(shost
),
515 sserv
, sizeof(sserv
), NI_NUMERICHOST
| NI_NUMERICSERV
);
516 getnameinfo((struct sockaddr
*) ps
, ps_len
, phost
, sizeof(phost
),
517 pserv
, sizeof(pserv
), NI_NUMERICHOST
| NI_NUMERICSERV
);
518 return g_strdup_printf("%s:%s%s%s:%s%s <-> %s%s%s:%s",
519 is_telnet
? "telnet" : "tcp",
520 left
, shost
, right
, sserv
,
521 is_listen
? ",server" : "",
522 left
, phost
, right
, pserv
);
525 return g_strdup_printf("unknown");
529 static void tcp_chr_connect(void *opaque
)
531 Chardev
*chr
= CHARDEV(opaque
);
532 SocketChardev
*s
= SOCKET_CHARDEV(opaque
);
534 g_free(chr
->filename
);
535 chr
->filename
= sockaddr_to_str(
536 &s
->sioc
->localAddr
, s
->sioc
->localAddrLen
,
537 &s
->sioc
->remoteAddr
, s
->sioc
->remoteAddrLen
,
538 s
->is_listen
, s
->is_telnet
);
542 chr
->gsource
= io_add_watch_poll(chr
, s
->ioc
,
548 s
->hup_source
= qio_channel_create_watch(s
->ioc
, G_IO_HUP
);
549 g_source_set_callback(s
->hup_source
, (GSourceFunc
)tcp_chr_hup
,
551 g_source_attach(s
->hup_source
, chr
->gcontext
);
553 qemu_chr_be_event(chr
, CHR_EVENT_OPENED
);
556 static void tcp_chr_update_read_handler(Chardev
*chr
)
558 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
564 remove_fd_in_watch(chr
);
566 chr
->gsource
= io_add_watch_poll(chr
, s
->ioc
,
577 } TCPChardevTelnetInit
;
579 static gboolean
tcp_chr_telnet_init_io(QIOChannel
*ioc
,
580 GIOCondition cond G_GNUC_UNUSED
,
583 TCPChardevTelnetInit
*init
= user_data
;
586 ret
= qio_channel_write(ioc
, init
->buf
, init
->buflen
, NULL
);
588 if (ret
== QIO_CHANNEL_ERR_BLOCK
) {
591 tcp_chr_disconnect(init
->chr
);
597 if (init
->buflen
== 0) {
598 tcp_chr_connect(init
->chr
);
602 memmove(init
->buf
, init
->buf
+ ret
, init
->buflen
);
607 static void tcp_chr_telnet_init(Chardev
*chr
)
609 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
610 TCPChardevTelnetInit
*init
= g_new0(TCPChardevTelnetInit
, 1);
613 #define IACSET(x, a, b, c) \
623 /* Prep the telnet negotion to put telnet in binary,
624 * no echo, single char mode */
625 IACSET(init
->buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
626 IACSET(init
->buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
627 IACSET(init
->buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
628 IACSET(init
->buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
631 /* Prep the TN3270 negotion based on RFC1576 */
632 IACSET(init
->buf
, 0xff, 0xfd, 0x19); /* IAC DO EOR */
633 IACSET(init
->buf
, 0xff, 0xfb, 0x19); /* IAC WILL EOR */
634 IACSET(init
->buf
, 0xff, 0xfd, 0x00); /* IAC DO BINARY */
635 IACSET(init
->buf
, 0xff, 0xfb, 0x00); /* IAC WILL BINARY */
636 IACSET(init
->buf
, 0xff, 0xfd, 0x18); /* IAC DO TERMINAL TYPE */
637 IACSET(init
->buf
, 0xff, 0xfa, 0x18); /* IAC SB TERMINAL TYPE */
638 IACSET(init
->buf
, 0x01, 0xff, 0xf0); /* SEND IAC SE */
643 qio_channel_add_watch(
645 tcp_chr_telnet_init_io
,
650 static void tcp_chr_tls_handshake(QIOTask
*task
,
653 Chardev
*chr
= user_data
;
654 SocketChardev
*s
= user_data
;
656 if (qio_task_propagate_error(task
, NULL
)) {
657 tcp_chr_disconnect(chr
);
659 /* tn3270 does not support TLS yet */
660 if (s
->do_telnetopt
&& !s
->is_tn3270
) {
661 tcp_chr_telnet_init(chr
);
663 tcp_chr_connect(chr
);
669 static void tcp_chr_tls_init(Chardev
*chr
)
671 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
677 tioc
= qio_channel_tls_new_server(
678 s
->ioc
, s
->tls_creds
,
679 NULL
, /* XXX Use an ACL */
682 tioc
= qio_channel_tls_new_client(
683 s
->ioc
, s
->tls_creds
,
684 s
->addr
->u
.inet
.host
,
689 tcp_chr_disconnect(chr
);
692 name
= g_strdup_printf("chardev-tls-%s-%s",
693 s
->is_listen
? "server" : "client",
695 qio_channel_set_name(QIO_CHANNEL(tioc
), name
);
697 object_unref(OBJECT(s
->ioc
));
698 s
->ioc
= QIO_CHANNEL(tioc
);
700 qio_channel_tls_handshake(tioc
,
701 tcp_chr_tls_handshake
,
707 static void tcp_chr_set_client_ioc_name(Chardev
*chr
,
708 QIOChannelSocket
*sioc
)
710 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
712 name
= g_strdup_printf("chardev-tcp-%s-%s",
713 s
->is_listen
? "server" : "client",
715 qio_channel_set_name(QIO_CHANNEL(sioc
), name
);
720 static int tcp_chr_new_client(Chardev
*chr
, QIOChannelSocket
*sioc
)
722 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
724 if (s
->ioc
!= NULL
) {
728 s
->ioc
= QIO_CHANNEL(sioc
);
729 object_ref(OBJECT(sioc
));
731 object_ref(OBJECT(sioc
));
733 qio_channel_set_blocking(s
->ioc
, false, NULL
);
736 qio_channel_set_delay(s
->ioc
, false);
739 qio_net_listener_set_client_func(s
->listener
, NULL
, NULL
, NULL
);
743 tcp_chr_tls_init(chr
);
745 if (s
->do_telnetopt
) {
746 tcp_chr_telnet_init(chr
);
748 tcp_chr_connect(chr
);
756 static int tcp_chr_add_client(Chardev
*chr
, int fd
)
759 QIOChannelSocket
*sioc
;
761 sioc
= qio_channel_socket_new_fd(fd
, NULL
);
765 tcp_chr_set_client_ioc_name(chr
, sioc
);
766 ret
= tcp_chr_new_client(chr
, sioc
);
767 object_unref(OBJECT(sioc
));
771 static void tcp_chr_accept(QIONetListener
*listener
,
772 QIOChannelSocket
*cioc
,
775 Chardev
*chr
= CHARDEV(opaque
);
777 tcp_chr_set_client_ioc_name(chr
, cioc
);
778 tcp_chr_new_client(chr
, cioc
);
781 static int tcp_chr_wait_connected(Chardev
*chr
, Error
**errp
)
783 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
784 QIOChannelSocket
*sioc
;
786 /* It can't wait on s->connected, since it is set asynchronously
787 * in TLS and telnet cases, only wait for an accepted socket */
790 info_report("QEMU waiting for connection on: %s",
792 sioc
= qio_net_listener_wait_client(s
->listener
);
793 tcp_chr_set_client_ioc_name(chr
, sioc
);
794 tcp_chr_new_client(chr
, sioc
);
795 object_unref(OBJECT(sioc
));
797 sioc
= qio_channel_socket_new();
798 tcp_chr_set_client_ioc_name(chr
, sioc
);
799 if (qio_channel_socket_connect_sync(sioc
, s
->addr
, errp
) < 0) {
800 object_unref(OBJECT(sioc
));
803 tcp_chr_new_client(chr
, sioc
);
804 object_unref(OBJECT(sioc
));
811 static void char_socket_finalize(Object
*obj
)
813 Chardev
*chr
= CHARDEV(obj
);
814 SocketChardev
*s
= SOCKET_CHARDEV(obj
);
816 tcp_chr_free_connection(chr
);
817 tcp_chr_reconn_timer_cancel(s
);
818 qapi_free_SocketAddress(s
->addr
);
820 qio_net_listener_set_client_func(s
->listener
, NULL
, NULL
, NULL
);
821 object_unref(OBJECT(s
->listener
));
824 object_unref(OBJECT(s
->tls_creds
));
827 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
830 static void qemu_chr_socket_connected(QIOTask
*task
, void *opaque
)
832 QIOChannelSocket
*sioc
= QIO_CHANNEL_SOCKET(qio_task_get_source(task
));
833 Chardev
*chr
= CHARDEV(opaque
);
834 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
837 if (qio_task_propagate_error(task
, &err
)) {
838 check_report_connect_error(chr
, err
);
843 s
->connect_err_reported
= false;
844 tcp_chr_new_client(chr
, sioc
);
847 object_unref(OBJECT(sioc
));
850 static gboolean
socket_reconnect_timeout(gpointer opaque
)
852 Chardev
*chr
= CHARDEV(opaque
);
853 SocketChardev
*s
= SOCKET_CHARDEV(opaque
);
854 QIOChannelSocket
*sioc
;
856 g_source_unref(s
->reconnect_timer
);
857 s
->reconnect_timer
= NULL
;
863 sioc
= qio_channel_socket_new();
864 tcp_chr_set_client_ioc_name(chr
, sioc
);
865 qio_channel_socket_connect_async(sioc
, s
->addr
,
866 qemu_chr_socket_connected
,
872 static void qmp_chardev_open_socket(Chardev
*chr
,
873 ChardevBackend
*backend
,
877 SocketChardev
*s
= SOCKET_CHARDEV(chr
);
878 ChardevSocket
*sock
= backend
->u
.socket
.data
;
879 bool do_nodelay
= sock
->has_nodelay
? sock
->nodelay
: false;
880 bool is_listen
= sock
->has_server
? sock
->server
: true;
881 bool is_telnet
= sock
->has_telnet
? sock
->telnet
: false;
882 bool is_tn3270
= sock
->has_tn3270
? sock
->tn3270
: false;
883 bool is_waitconnect
= sock
->has_wait
? sock
->wait
: false;
884 int64_t reconnect
= sock
->has_reconnect
? sock
->reconnect
: 0;
885 QIOChannelSocket
*sioc
= NULL
;
888 s
->is_listen
= is_listen
;
889 s
->is_telnet
= is_telnet
;
890 s
->is_tn3270
= is_tn3270
;
891 s
->do_nodelay
= do_nodelay
;
892 if (sock
->tls_creds
) {
894 creds
= object_resolve_path_component(
895 object_get_objects_root(), sock
->tls_creds
);
897 error_setg(errp
, "No TLS credentials with id '%s'",
901 s
->tls_creds
= (QCryptoTLSCreds
*)
902 object_dynamic_cast(creds
,
903 TYPE_QCRYPTO_TLS_CREDS
);
905 error_setg(errp
, "Object with id '%s' is not TLS credentials",
909 object_ref(OBJECT(s
->tls_creds
));
911 if (s
->tls_creds
->endpoint
!= QCRYPTO_TLS_CREDS_ENDPOINT_SERVER
) {
912 error_setg(errp
, "%s",
913 "Expected TLS credentials for server endpoint");
917 if (s
->tls_creds
->endpoint
!= QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT
) {
918 error_setg(errp
, "%s",
919 "Expected TLS credentials for client endpoint");
925 s
->addr
= addr
= socket_address_flatten(sock
->addr
);
927 qemu_chr_set_feature(chr
, QEMU_CHAR_FEATURE_RECONNECTABLE
);
928 /* TODO SOCKET_ADDRESS_FD where fd has AF_UNIX */
929 if (addr
->type
== SOCKET_ADDRESS_TYPE_UNIX
) {
930 qemu_chr_set_feature(chr
, QEMU_CHAR_FEATURE_FD_PASS
);
933 /* be isn't opened until we get a connection */
936 update_disconnected_filename(s
);
939 if (is_telnet
|| is_tn3270
) {
942 } else if (reconnect
> 0) {
943 s
->reconnect_time
= reconnect
;
946 if (s
->reconnect_time
) {
947 sioc
= qio_channel_socket_new();
948 tcp_chr_set_client_ioc_name(chr
, sioc
);
949 qio_channel_socket_connect_async(sioc
, s
->addr
,
950 qemu_chr_socket_connected
,
955 s
->listener
= qio_net_listener_new();
957 name
= g_strdup_printf("chardev-tcp-listener-%s", chr
->label
);
958 qio_net_listener_set_name(s
->listener
, name
);
961 if (qio_net_listener_open_sync(s
->listener
, s
->addr
, errp
) < 0) {
962 object_unref(OBJECT(s
->listener
));
967 qapi_free_SocketAddress(s
->addr
);
968 s
->addr
= socket_local_address(s
->listener
->sioc
[0]->fd
, errp
);
969 update_disconnected_filename(s
);
971 if (is_waitconnect
&&
972 qemu_chr_wait_connected(chr
, errp
) < 0) {
976 qio_net_listener_set_client_func(s
->listener
, tcp_chr_accept
,
979 } else if (qemu_chr_wait_connected(chr
, errp
) < 0) {
988 object_unref(OBJECT(sioc
));
992 static void qemu_chr_parse_socket(QemuOpts
*opts
, ChardevBackend
*backend
,
995 bool is_listen
= qemu_opt_get_bool(opts
, "server", false);
996 bool is_waitconnect
= is_listen
&& qemu_opt_get_bool(opts
, "wait", true);
997 bool is_telnet
= qemu_opt_get_bool(opts
, "telnet", false);
998 bool is_tn3270
= qemu_opt_get_bool(opts
, "tn3270", false);
999 bool do_nodelay
= !qemu_opt_get_bool(opts
, "delay", true);
1000 int64_t reconnect
= qemu_opt_get_number(opts
, "reconnect", 0);
1001 const char *path
= qemu_opt_get(opts
, "path");
1002 const char *host
= qemu_opt_get(opts
, "host");
1003 const char *port
= qemu_opt_get(opts
, "port");
1004 const char *tls_creds
= qemu_opt_get(opts
, "tls-creds");
1005 SocketAddressLegacy
*addr
;
1006 ChardevSocket
*sock
;
1008 backend
->type
= CHARDEV_BACKEND_KIND_SOCKET
;
1011 error_setg(errp
, "chardev: socket: no host given");
1015 error_setg(errp
, "chardev: socket: no port given");
1020 error_setg(errp
, "TLS can only be used over TCP socket");
1025 sock
= backend
->u
.socket
.data
= g_new0(ChardevSocket
, 1);
1026 qemu_chr_parse_common(opts
, qapi_ChardevSocket_base(sock
));
1028 sock
->has_nodelay
= true;
1029 sock
->nodelay
= do_nodelay
;
1030 sock
->has_server
= true;
1031 sock
->server
= is_listen
;
1032 sock
->has_telnet
= true;
1033 sock
->telnet
= is_telnet
;
1034 sock
->has_tn3270
= true;
1035 sock
->tn3270
= is_tn3270
;
1036 sock
->has_wait
= true;
1037 sock
->wait
= is_waitconnect
;
1038 sock
->has_reconnect
= true;
1039 sock
->reconnect
= reconnect
;
1040 sock
->tls_creds
= g_strdup(tls_creds
);
1042 addr
= g_new0(SocketAddressLegacy
, 1);
1044 UnixSocketAddress
*q_unix
;
1045 addr
->type
= SOCKET_ADDRESS_LEGACY_KIND_UNIX
;
1046 q_unix
= addr
->u
.q_unix
.data
= g_new0(UnixSocketAddress
, 1);
1047 q_unix
->path
= g_strdup(path
);
1049 addr
->type
= SOCKET_ADDRESS_LEGACY_KIND_INET
;
1050 addr
->u
.inet
.data
= g_new(InetSocketAddress
, 1);
1051 *addr
->u
.inet
.data
= (InetSocketAddress
) {
1052 .host
= g_strdup(host
),
1053 .port
= g_strdup(port
),
1054 .has_to
= qemu_opt_get(opts
, "to"),
1055 .to
= qemu_opt_get_number(opts
, "to", 0),
1056 .has_ipv4
= qemu_opt_get(opts
, "ipv4"),
1057 .ipv4
= qemu_opt_get_bool(opts
, "ipv4", 0),
1058 .has_ipv6
= qemu_opt_get(opts
, "ipv6"),
1059 .ipv6
= qemu_opt_get_bool(opts
, "ipv6", 0),
1066 char_socket_get_addr(Object
*obj
, Visitor
*v
, const char *name
,
1067 void *opaque
, Error
**errp
)
1069 SocketChardev
*s
= SOCKET_CHARDEV(obj
);
1071 visit_type_SocketAddress(v
, name
, &s
->addr
, errp
);
1075 char_socket_get_connected(Object
*obj
, Error
**errp
)
1077 SocketChardev
*s
= SOCKET_CHARDEV(obj
);
1079 return s
->connected
;
1082 static void char_socket_class_init(ObjectClass
*oc
, void *data
)
1084 ChardevClass
*cc
= CHARDEV_CLASS(oc
);
1086 cc
->parse
= qemu_chr_parse_socket
;
1087 cc
->open
= qmp_chardev_open_socket
;
1088 cc
->chr_wait_connected
= tcp_chr_wait_connected
;
1089 cc
->chr_write
= tcp_chr_write
;
1090 cc
->chr_sync_read
= tcp_chr_sync_read
;
1091 cc
->chr_disconnect
= tcp_chr_disconnect
;
1092 cc
->get_msgfds
= tcp_get_msgfds
;
1093 cc
->set_msgfds
= tcp_set_msgfds
;
1094 cc
->chr_add_client
= tcp_chr_add_client
;
1095 cc
->chr_add_watch
= tcp_chr_add_watch
;
1096 cc
->chr_update_read_handler
= tcp_chr_update_read_handler
;
1098 object_class_property_add(oc
, "addr", "SocketAddress",
1099 char_socket_get_addr
, NULL
,
1100 NULL
, NULL
, &error_abort
);
1102 object_class_property_add_bool(oc
, "connected", char_socket_get_connected
,
1103 NULL
, &error_abort
);
1106 static const TypeInfo char_socket_type_info
= {
1107 .name
= TYPE_CHARDEV_SOCKET
,
1108 .parent
= TYPE_CHARDEV
,
1109 .instance_size
= sizeof(SocketChardev
),
1110 .instance_finalize
= char_socket_finalize
,
1111 .class_init
= char_socket_class_init
,
1114 static void register_types(void)
1116 type_register_static(&char_socket_type_info
);
1119 type_init(register_types
);