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"
25 #include "monitor/monitor.h"
26 #include "ui/console.h"
27 #include "sysemu/sysemu.h"
28 #include "qemu/timer.h"
29 #include "sysemu/char.h"
31 #include "qmp-commands.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>
50 #include <arpa/inet.h>
53 #include <sys/select.h>
56 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
57 #include <dev/ppbus/ppi.h>
58 #include <dev/ppbus/ppbconf.h>
59 #elif defined(__DragonFly__)
60 #include <dev/misc/ppi/ppi.h>
61 #include <bus/ppbus/ppbconf.h>
65 #include <linux/ppdev.h>
66 #include <linux/parport.h>
70 #include <sys/ethernet.h>
71 #include <sys/sockio.h>
72 #include <netinet/arp.h>
73 #include <netinet/in.h>
74 #include <netinet/in_systm.h>
75 #include <netinet/ip.h>
76 #include <netinet/ip_icmp.h> // must come after ip.h
77 #include <netinet/udp.h>
78 #include <netinet/tcp.h>
85 #include "qemu/sockets.h"
86 #include "ui/qemu-spice.h"
88 #define READ_BUF_LEN 4096
90 /***********************************************************/
91 /* character device */
93 static QTAILQ_HEAD(CharDriverStateHead
, CharDriverState
) chardevs
=
94 QTAILQ_HEAD_INITIALIZER(chardevs
);
96 void qemu_chr_be_event(CharDriverState
*s
, int event
)
98 /* Keep track if the char device is open */
100 case CHR_EVENT_OPENED
:
103 case CHR_EVENT_CLOSED
:
110 s
->chr_event(s
->handler_opaque
, event
);
113 void qemu_chr_be_generic_open(CharDriverState
*s
)
115 qemu_chr_be_event(s
, CHR_EVENT_OPENED
);
118 int qemu_chr_fe_write(CharDriverState
*s
, const uint8_t *buf
, int len
)
120 return s
->chr_write(s
, buf
, len
);
123 int qemu_chr_fe_write_all(CharDriverState
*s
, const uint8_t *buf
, int len
)
128 while (offset
< len
) {
130 res
= s
->chr_write(s
, buf
+ offset
, len
- offset
);
131 if (res
== -1 && errno
== EAGAIN
) {
134 } while (res
== -1 && errno
== EAGAIN
);
150 int qemu_chr_fe_ioctl(CharDriverState
*s
, int cmd
, void *arg
)
154 return s
->chr_ioctl(s
, cmd
, arg
);
157 int qemu_chr_be_can_write(CharDriverState
*s
)
159 if (!s
->chr_can_read
)
161 return s
->chr_can_read(s
->handler_opaque
);
164 void qemu_chr_be_write(CharDriverState
*s
, uint8_t *buf
, int len
)
167 s
->chr_read(s
->handler_opaque
, buf
, len
);
171 int qemu_chr_fe_get_msgfd(CharDriverState
*s
)
173 return s
->get_msgfd
? s
->get_msgfd(s
) : -1;
176 int qemu_chr_add_client(CharDriverState
*s
, int fd
)
178 return s
->chr_add_client
? s
->chr_add_client(s
, fd
) : -1;
181 void qemu_chr_accept_input(CharDriverState
*s
)
183 if (s
->chr_accept_input
)
184 s
->chr_accept_input(s
);
188 void qemu_chr_fe_printf(CharDriverState
*s
, const char *fmt
, ...)
190 char buf
[READ_BUF_LEN
];
193 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
194 qemu_chr_fe_write(s
, (uint8_t *)buf
, strlen(buf
));
198 void qemu_chr_add_handlers(CharDriverState
*s
,
199 IOCanReadHandler
*fd_can_read
,
200 IOReadHandler
*fd_read
,
201 IOEventHandler
*fd_event
,
206 if (!opaque
&& !fd_can_read
&& !fd_read
&& !fd_event
) {
211 s
->chr_can_read
= fd_can_read
;
212 s
->chr_read
= fd_read
;
213 s
->chr_event
= fd_event
;
214 s
->handler_opaque
= opaque
;
215 if (s
->chr_update_read_handler
)
216 s
->chr_update_read_handler(s
);
218 if (!s
->explicit_fe_open
) {
219 qemu_chr_fe_set_open(s
, fe_open
);
222 /* We're connecting to an already opened device, so let's make sure we
223 also get the open event */
224 if (fe_open
&& s
->be_open
) {
225 qemu_chr_be_generic_open(s
);
229 static int null_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
234 static CharDriverState
*qemu_chr_open_null(void)
236 CharDriverState
*chr
;
238 chr
= g_malloc0(sizeof(CharDriverState
));
239 chr
->chr_write
= null_chr_write
;
240 chr
->explicit_be_open
= true;
244 /* MUX driver for serial I/O splitting */
246 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
247 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
249 IOCanReadHandler
*chr_can_read
[MAX_MUX
];
250 IOReadHandler
*chr_read
[MAX_MUX
];
251 IOEventHandler
*chr_event
[MAX_MUX
];
252 void *ext_opaque
[MAX_MUX
];
253 CharDriverState
*drv
;
258 /* Intermediate input buffer allows to catch escape sequences even if the
259 currently active device is not accepting any input - but only until it
261 unsigned char buffer
[MAX_MUX
][MUX_BUFFER_SIZE
];
266 int64_t timestamps_start
;
270 static int mux_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
272 MuxDriver
*d
= chr
->opaque
;
274 if (!d
->timestamps
) {
275 ret
= d
->drv
->chr_write(d
->drv
, buf
, len
);
280 for (i
= 0; i
< len
; i
++) {
286 ti
= qemu_get_clock_ms(rt_clock
);
287 if (d
->timestamps_start
== -1)
288 d
->timestamps_start
= ti
;
289 ti
-= d
->timestamps_start
;
291 snprintf(buf1
, sizeof(buf1
),
292 "[%02d:%02d:%02d.%03d] ",
297 d
->drv
->chr_write(d
->drv
, (uint8_t *)buf1
, strlen(buf1
));
300 ret
+= d
->drv
->chr_write(d
->drv
, buf
+i
, 1);
301 if (buf
[i
] == '\n') {
309 static const char * const mux_help
[] = {
310 "% h print this help\n\r",
311 "% x exit emulator\n\r",
312 "% s save disk data back to file (if -snapshot)\n\r",
313 "% t toggle console timestamps\n\r"
314 "% b send break (magic sysrq)\n\r",
315 "% c switch between console and monitor\n\r",
320 int term_escape_char
= 0x01; /* ctrl-a is used for escape */
321 static void mux_print_help(CharDriverState
*chr
)
324 char ebuf
[15] = "Escape-Char";
325 char cbuf
[50] = "\n\r";
327 if (term_escape_char
> 0 && term_escape_char
< 26) {
328 snprintf(cbuf
, sizeof(cbuf
), "\n\r");
329 snprintf(ebuf
, sizeof(ebuf
), "C-%c", term_escape_char
- 1 + 'a');
331 snprintf(cbuf
, sizeof(cbuf
),
332 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
335 chr
->chr_write(chr
, (uint8_t *)cbuf
, strlen(cbuf
));
336 for (i
= 0; mux_help
[i
] != NULL
; i
++) {
337 for (j
=0; mux_help
[i
][j
] != '\0'; j
++) {
338 if (mux_help
[i
][j
] == '%')
339 chr
->chr_write(chr
, (uint8_t *)ebuf
, strlen(ebuf
));
341 chr
->chr_write(chr
, (uint8_t *)&mux_help
[i
][j
], 1);
346 static void mux_chr_send_event(MuxDriver
*d
, int mux_nr
, int event
)
348 if (d
->chr_event
[mux_nr
])
349 d
->chr_event
[mux_nr
](d
->ext_opaque
[mux_nr
], event
);
352 static int mux_proc_byte(CharDriverState
*chr
, MuxDriver
*d
, int ch
)
354 if (d
->term_got_escape
) {
355 d
->term_got_escape
= 0;
356 if (ch
== term_escape_char
)
365 const char *term
= "QEMU: Terminated\n\r";
366 chr
->chr_write(chr
,(uint8_t *)term
,strlen(term
));
374 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
377 /* Switch to the next registered device */
378 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
380 if (d
->focus
>= d
->mux_cnt
)
382 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
385 d
->timestamps
= !d
->timestamps
;
386 d
->timestamps_start
= -1;
390 } else if (ch
== term_escape_char
) {
391 d
->term_got_escape
= 1;
399 static void mux_chr_accept_input(CharDriverState
*chr
)
401 MuxDriver
*d
= chr
->opaque
;
404 while (d
->prod
[m
] != d
->cons
[m
] &&
405 d
->chr_can_read
[m
] &&
406 d
->chr_can_read
[m
](d
->ext_opaque
[m
])) {
407 d
->chr_read
[m
](d
->ext_opaque
[m
],
408 &d
->buffer
[m
][d
->cons
[m
]++ & MUX_BUFFER_MASK
], 1);
412 static int mux_chr_can_read(void *opaque
)
414 CharDriverState
*chr
= opaque
;
415 MuxDriver
*d
= chr
->opaque
;
418 if ((d
->prod
[m
] - d
->cons
[m
]) < MUX_BUFFER_SIZE
)
420 if (d
->chr_can_read
[m
])
421 return d
->chr_can_read
[m
](d
->ext_opaque
[m
]);
425 static void mux_chr_read(void *opaque
, const uint8_t *buf
, int size
)
427 CharDriverState
*chr
= opaque
;
428 MuxDriver
*d
= chr
->opaque
;
432 mux_chr_accept_input (opaque
);
434 for(i
= 0; i
< size
; i
++)
435 if (mux_proc_byte(chr
, d
, buf
[i
])) {
436 if (d
->prod
[m
] == d
->cons
[m
] &&
437 d
->chr_can_read
[m
] &&
438 d
->chr_can_read
[m
](d
->ext_opaque
[m
]))
439 d
->chr_read
[m
](d
->ext_opaque
[m
], &buf
[i
], 1);
441 d
->buffer
[m
][d
->prod
[m
]++ & MUX_BUFFER_MASK
] = buf
[i
];
445 static void mux_chr_event(void *opaque
, int event
)
447 CharDriverState
*chr
= opaque
;
448 MuxDriver
*d
= chr
->opaque
;
451 /* Send the event to all registered listeners */
452 for (i
= 0; i
< d
->mux_cnt
; i
++)
453 mux_chr_send_event(d
, i
, event
);
456 static void mux_chr_update_read_handler(CharDriverState
*chr
)
458 MuxDriver
*d
= chr
->opaque
;
460 if (d
->mux_cnt
>= MAX_MUX
) {
461 fprintf(stderr
, "Cannot add I/O handlers, MUX array is full\n");
464 d
->ext_opaque
[d
->mux_cnt
] = chr
->handler_opaque
;
465 d
->chr_can_read
[d
->mux_cnt
] = chr
->chr_can_read
;
466 d
->chr_read
[d
->mux_cnt
] = chr
->chr_read
;
467 d
->chr_event
[d
->mux_cnt
] = chr
->chr_event
;
468 /* Fix up the real driver with mux routines */
469 if (d
->mux_cnt
== 0) {
470 qemu_chr_add_handlers(d
->drv
, mux_chr_can_read
, mux_chr_read
,
473 if (d
->focus
!= -1) {
474 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
476 d
->focus
= d
->mux_cnt
;
478 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
481 static CharDriverState
*qemu_chr_open_mux(CharDriverState
*drv
)
483 CharDriverState
*chr
;
486 chr
= g_malloc0(sizeof(CharDriverState
));
487 d
= g_malloc0(sizeof(MuxDriver
));
492 chr
->chr_write
= mux_chr_write
;
493 chr
->chr_update_read_handler
= mux_chr_update_read_handler
;
494 chr
->chr_accept_input
= mux_chr_accept_input
;
495 /* Frontend guest-open / -close notification is not support with muxes */
496 chr
->chr_set_fe_open
= NULL
;
503 int send_all(int fd
, const void *buf
, int len1
)
509 ret
= send(fd
, buf
, len
, 0);
511 errno
= WSAGetLastError();
512 if (errno
!= WSAEWOULDBLOCK
) {
515 } else if (ret
== 0) {
527 int send_all(int fd
, const void *_buf
, int len1
)
530 const uint8_t *buf
= _buf
;
534 ret
= write(fd
, buf
, len
);
536 if (errno
!= EINTR
&& errno
!= EAGAIN
)
538 } else if (ret
== 0) {
548 int recv_all(int fd
, void *_buf
, int len1
, bool single_read
)
554 while ((len
> 0) && (ret
= read(fd
, buf
, len
)) != 0) {
556 if (errno
!= EINTR
&& errno
!= EAGAIN
) {
573 typedef struct IOWatchPoll
580 IOCanReadHandler
*fd_can_read
;
585 static IOWatchPoll
*io_watch_poll_from_source(GSource
*source
)
587 return container_of(source
, IOWatchPoll
, parent
);
590 static gboolean
io_watch_poll_prepare(GSource
*source
, gint
*timeout_
)
592 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
593 bool now_active
= iwp
->fd_can_read(iwp
->opaque
) > 0;
594 bool was_active
= iwp
->src
!= NULL
;
595 if (was_active
== now_active
) {
600 iwp
->src
= g_io_create_watch(iwp
->channel
, G_IO_IN
| G_IO_ERR
| G_IO_HUP
);
601 g_source_set_callback(iwp
->src
, iwp
->fd_read
, iwp
->opaque
, NULL
);
602 g_source_attach(iwp
->src
, NULL
);
604 g_source_destroy(iwp
->src
);
605 g_source_unref(iwp
->src
);
611 static gboolean
io_watch_poll_check(GSource
*source
)
616 static gboolean
io_watch_poll_dispatch(GSource
*source
, GSourceFunc callback
,
622 static void io_watch_poll_finalize(GSource
*source
)
624 /* Due to a glib bug, removing the last reference to a source
625 * inside a finalize callback causes recursive locking (and a
626 * deadlock). This is not a problem inside other callbacks,
627 * including dispatch callbacks, so we call io_remove_watch_poll
628 * to remove this source. At this point, iwp->src must
629 * be NULL, or we would leak it.
631 * This would be solved much more elegantly by child sources,
632 * but we support older glib versions that do not have them.
634 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
635 assert(iwp
->src
== NULL
);
638 static GSourceFuncs io_watch_poll_funcs
= {
639 .prepare
= io_watch_poll_prepare
,
640 .check
= io_watch_poll_check
,
641 .dispatch
= io_watch_poll_dispatch
,
642 .finalize
= io_watch_poll_finalize
,
645 /* Can only be used for read */
646 static guint
io_add_watch_poll(GIOChannel
*channel
,
647 IOCanReadHandler
*fd_can_read
,
654 iwp
= (IOWatchPoll
*) g_source_new(&io_watch_poll_funcs
, sizeof(IOWatchPoll
));
655 iwp
->fd_can_read
= fd_can_read
;
656 iwp
->opaque
= user_data
;
657 iwp
->channel
= channel
;
658 iwp
->fd_read
= (GSourceFunc
) fd_read
;
661 tag
= g_source_attach(&iwp
->parent
, NULL
);
662 g_source_unref(&iwp
->parent
);
666 static void io_remove_watch_poll(guint tag
)
671 g_return_if_fail (tag
> 0);
673 source
= g_main_context_find_source_by_id(NULL
, tag
);
674 g_return_if_fail (source
!= NULL
);
676 iwp
= io_watch_poll_from_source(source
);
678 g_source_destroy(iwp
->src
);
679 g_source_unref(iwp
->src
);
682 g_source_destroy(&iwp
->parent
);
686 static GIOChannel
*io_channel_from_fd(int fd
)
694 chan
= g_io_channel_unix_new(fd
);
696 g_io_channel_set_encoding(chan
, NULL
, NULL
);
697 g_io_channel_set_buffered(chan
, FALSE
);
703 static GIOChannel
*io_channel_from_socket(int fd
)
712 chan
= g_io_channel_win32_new_socket(fd
);
714 chan
= g_io_channel_unix_new(fd
);
717 g_io_channel_set_encoding(chan
, NULL
, NULL
);
718 g_io_channel_set_buffered(chan
, FALSE
);
723 static int io_channel_send(GIOChannel
*fd
, const void *buf
, size_t len
)
729 while (offset
< len
) {
732 status
= g_io_channel_write_chars(fd
, buf
+ offset
, len
- offset
,
733 &bytes_written
, NULL
);
734 if (status
!= G_IO_STATUS_NORMAL
) {
735 if (status
== G_IO_STATUS_AGAIN
) {
736 /* If we've written any data, return a partial write. */
746 } else if (status
== G_IO_STATUS_EOF
) {
750 offset
+= bytes_written
;
758 typedef struct FDCharDriver
{
759 CharDriverState
*chr
;
760 GIOChannel
*fd_in
, *fd_out
;
763 QTAILQ_ENTRY(FDCharDriver
) node
;
766 static int fd_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
768 FDCharDriver
*s
= chr
->opaque
;
770 return io_channel_send(s
->fd_out
, buf
, len
);
773 static gboolean
fd_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
775 CharDriverState
*chr
= opaque
;
776 FDCharDriver
*s
= chr
->opaque
;
778 uint8_t buf
[READ_BUF_LEN
];
783 if (len
> s
->max_size
) {
790 status
= g_io_channel_read_chars(chan
, (gchar
*)buf
,
791 len
, &bytes_read
, NULL
);
792 if (status
== G_IO_STATUS_EOF
) {
794 io_remove_watch_poll(s
->fd_in_tag
);
797 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
800 if (status
== G_IO_STATUS_NORMAL
) {
801 qemu_chr_be_write(chr
, buf
, bytes_read
);
807 static int fd_chr_read_poll(void *opaque
)
809 CharDriverState
*chr
= opaque
;
810 FDCharDriver
*s
= chr
->opaque
;
812 s
->max_size
= qemu_chr_be_can_write(chr
);
816 static GSource
*fd_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
818 FDCharDriver
*s
= chr
->opaque
;
819 return g_io_create_watch(s
->fd_out
, cond
);
822 static void fd_chr_update_read_handler(CharDriverState
*chr
)
824 FDCharDriver
*s
= chr
->opaque
;
827 io_remove_watch_poll(s
->fd_in_tag
);
832 s
->fd_in_tag
= io_add_watch_poll(s
->fd_in
, fd_chr_read_poll
, fd_chr_read
, chr
);
836 static void fd_chr_close(struct CharDriverState
*chr
)
838 FDCharDriver
*s
= chr
->opaque
;
841 io_remove_watch_poll(s
->fd_in_tag
);
846 g_io_channel_unref(s
->fd_in
);
849 g_io_channel_unref(s
->fd_out
);
853 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
856 /* open a character device to a unix fd */
857 static CharDriverState
*qemu_chr_open_fd(int fd_in
, int fd_out
)
859 CharDriverState
*chr
;
862 chr
= g_malloc0(sizeof(CharDriverState
));
863 s
= g_malloc0(sizeof(FDCharDriver
));
864 s
->fd_in
= io_channel_from_fd(fd_in
);
865 s
->fd_out
= io_channel_from_fd(fd_out
);
866 fcntl(fd_out
, F_SETFL
, O_NONBLOCK
);
869 chr
->chr_add_watch
= fd_chr_add_watch
;
870 chr
->chr_write
= fd_chr_write
;
871 chr
->chr_update_read_handler
= fd_chr_update_read_handler
;
872 chr
->chr_close
= fd_chr_close
;
877 static CharDriverState
*qemu_chr_open_pipe(ChardevHostdev
*opts
)
880 char filename_in
[256], filename_out
[256];
881 const char *filename
= opts
->device
;
883 if (filename
== NULL
) {
884 fprintf(stderr
, "chardev: pipe: no filename given\n");
888 snprintf(filename_in
, 256, "%s.in", filename
);
889 snprintf(filename_out
, 256, "%s.out", filename
);
890 TFR(fd_in
= qemu_open(filename_in
, O_RDWR
| O_BINARY
));
891 TFR(fd_out
= qemu_open(filename_out
, O_RDWR
| O_BINARY
));
892 if (fd_in
< 0 || fd_out
< 0) {
897 TFR(fd_in
= fd_out
= qemu_open(filename
, O_RDWR
| O_BINARY
));
902 return qemu_chr_open_fd(fd_in
, fd_out
);
905 /* init terminal so that we can grab keys */
906 static struct termios oldtty
;
907 static int old_fd0_flags
;
908 static bool stdio_allow_signal
;
910 static void term_exit(void)
912 tcsetattr (0, TCSANOW
, &oldtty
);
913 fcntl(0, F_SETFL
, old_fd0_flags
);
916 static void qemu_chr_set_echo_stdio(CharDriverState
*chr
, bool echo
)
922 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
923 |INLCR
|IGNCR
|ICRNL
|IXON
);
924 tty
.c_oflag
|= OPOST
;
925 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
926 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
931 /* if graphical mode, we allow Ctrl-C handling */
932 if (!stdio_allow_signal
)
933 tty
.c_lflag
&= ~ISIG
;
935 tcsetattr (0, TCSANOW
, &tty
);
938 static void qemu_chr_close_stdio(struct CharDriverState
*chr
)
944 static CharDriverState
*qemu_chr_open_stdio(ChardevStdio
*opts
)
946 CharDriverState
*chr
;
948 if (is_daemonized()) {
949 error_report("cannot use stdio with -daemonize");
952 old_fd0_flags
= fcntl(0, F_GETFL
);
953 tcgetattr (0, &oldtty
);
954 fcntl(0, F_SETFL
, O_NONBLOCK
);
957 chr
= qemu_chr_open_fd(0, 1);
958 chr
->chr_close
= qemu_chr_close_stdio
;
959 chr
->chr_set_echo
= qemu_chr_set_echo_stdio
;
960 stdio_allow_signal
= display_type
!= DT_NOGRAPHIC
;
961 if (opts
->has_signal
) {
962 stdio_allow_signal
= opts
->signal
;
964 qemu_chr_fe_set_echo(chr
, false);
969 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
970 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
971 || defined(__GLIBC__)
973 #define HAVE_CHARDEV_TTY 1
983 static void pty_chr_update_read_handler(CharDriverState
*chr
);
984 static void pty_chr_state(CharDriverState
*chr
, int connected
);
986 static gboolean
pty_chr_timer(gpointer opaque
)
988 struct CharDriverState
*chr
= opaque
;
989 PtyCharDriver
*s
= chr
->opaque
;
996 pty_chr_update_read_handler(chr
);
1003 static void pty_chr_rearm_timer(CharDriverState
*chr
, int ms
)
1005 PtyCharDriver
*s
= chr
->opaque
;
1008 g_source_remove(s
->timer_tag
);
1013 s
->timer_tag
= g_timeout_add_seconds(1, pty_chr_timer
, chr
);
1015 s
->timer_tag
= g_timeout_add(ms
, pty_chr_timer
, chr
);
1019 static int pty_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1021 PtyCharDriver
*s
= chr
->opaque
;
1023 if (!s
->connected
) {
1024 /* guest sends data, check for (re-)connect */
1025 pty_chr_update_read_handler(chr
);
1028 return io_channel_send(s
->fd
, buf
, len
);
1031 static GSource
*pty_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
1033 PtyCharDriver
*s
= chr
->opaque
;
1034 return g_io_create_watch(s
->fd
, cond
);
1037 static int pty_chr_read_poll(void *opaque
)
1039 CharDriverState
*chr
= opaque
;
1040 PtyCharDriver
*s
= chr
->opaque
;
1042 s
->read_bytes
= qemu_chr_be_can_write(chr
);
1043 return s
->read_bytes
;
1046 static gboolean
pty_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
1048 CharDriverState
*chr
= opaque
;
1049 PtyCharDriver
*s
= chr
->opaque
;
1051 uint8_t buf
[READ_BUF_LEN
];
1055 if (len
> s
->read_bytes
)
1056 len
= s
->read_bytes
;
1060 status
= g_io_channel_read_chars(s
->fd
, (gchar
*)buf
, len
, &size
, NULL
);
1061 if (status
!= G_IO_STATUS_NORMAL
) {
1062 pty_chr_state(chr
, 0);
1065 pty_chr_state(chr
, 1);
1066 qemu_chr_be_write(chr
, buf
, size
);
1071 static void pty_chr_update_read_handler(CharDriverState
*chr
)
1073 PtyCharDriver
*s
= chr
->opaque
;
1076 pfd
.fd
= g_io_channel_unix_get_fd(s
->fd
);
1077 pfd
.events
= G_IO_OUT
;
1080 if (pfd
.revents
& G_IO_HUP
) {
1081 pty_chr_state(chr
, 0);
1083 pty_chr_state(chr
, 1);
1087 static void pty_chr_state(CharDriverState
*chr
, int connected
)
1089 PtyCharDriver
*s
= chr
->opaque
;
1093 io_remove_watch_poll(s
->fd_tag
);
1097 /* (re-)connect poll interval for idle guests: once per second.
1098 * We check more frequently in case the guests sends data to
1099 * the virtual device linked to our pty. */
1100 pty_chr_rearm_timer(chr
, 1000);
1103 g_source_remove(s
->timer_tag
);
1106 if (!s
->connected
) {
1107 qemu_chr_be_generic_open(chr
);
1109 s
->fd_tag
= io_add_watch_poll(s
->fd
, pty_chr_read_poll
, pty_chr_read
, chr
);
1115 static void pty_chr_close(struct CharDriverState
*chr
)
1117 PtyCharDriver
*s
= chr
->opaque
;
1121 io_remove_watch_poll(s
->fd_tag
);
1124 fd
= g_io_channel_unix_get_fd(s
->fd
);
1125 g_io_channel_unref(s
->fd
);
1128 g_source_remove(s
->timer_tag
);
1132 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1135 static CharDriverState
*qemu_chr_open_pty(const char *id
,
1138 CharDriverState
*chr
;
1140 int master_fd
, slave_fd
;
1141 char pty_name
[PATH_MAX
];
1143 master_fd
= qemu_openpty_raw(&slave_fd
, pty_name
);
1144 if (master_fd
< 0) {
1150 chr
= g_malloc0(sizeof(CharDriverState
));
1152 chr
->filename
= g_strdup_printf("pty:%s", pty_name
);
1153 ret
->pty
= g_strdup(pty_name
);
1154 ret
->has_pty
= true;
1156 fprintf(stderr
, "char device redirected to %s (label %s)\n",
1159 s
= g_malloc0(sizeof(PtyCharDriver
));
1161 chr
->chr_write
= pty_chr_write
;
1162 chr
->chr_update_read_handler
= pty_chr_update_read_handler
;
1163 chr
->chr_close
= pty_chr_close
;
1164 chr
->chr_add_watch
= pty_chr_add_watch
;
1165 chr
->explicit_be_open
= true;
1167 s
->fd
= io_channel_from_fd(master_fd
);
1173 static void tty_serial_init(int fd
, int speed
,
1174 int parity
, int data_bits
, int stop_bits
)
1180 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1181 speed
, parity
, data_bits
, stop_bits
);
1183 tcgetattr (fd
, &tty
);
1185 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1186 speed
= speed
* 10 / 11;
1203 /* Non-Posix values follow. They may be unsupported on some systems. */
1205 check_speed(115200);
1207 check_speed(230400);
1210 check_speed(460800);
1213 check_speed(500000);
1216 check_speed(576000);
1219 check_speed(921600);
1222 check_speed(1000000);
1225 check_speed(1152000);
1228 check_speed(1500000);
1231 check_speed(2000000);
1234 check_speed(2500000);
1237 check_speed(3000000);
1240 check_speed(3500000);
1243 check_speed(4000000);
1248 cfsetispeed(&tty
, spd
);
1249 cfsetospeed(&tty
, spd
);
1251 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1252 |INLCR
|IGNCR
|ICRNL
|IXON
);
1253 tty
.c_oflag
|= OPOST
;
1254 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
|ISIG
);
1255 tty
.c_cflag
&= ~(CSIZE
|PARENB
|PARODD
|CRTSCTS
|CSTOPB
);
1276 tty
.c_cflag
|= PARENB
;
1279 tty
.c_cflag
|= PARENB
| PARODD
;
1283 tty
.c_cflag
|= CSTOPB
;
1285 tcsetattr (fd
, TCSANOW
, &tty
);
1288 static int tty_serial_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1290 FDCharDriver
*s
= chr
->opaque
;
1293 case CHR_IOCTL_SERIAL_SET_PARAMS
:
1295 QEMUSerialSetParams
*ssp
= arg
;
1296 tty_serial_init(g_io_channel_unix_get_fd(s
->fd_in
),
1297 ssp
->speed
, ssp
->parity
,
1298 ssp
->data_bits
, ssp
->stop_bits
);
1301 case CHR_IOCTL_SERIAL_SET_BREAK
:
1303 int enable
= *(int *)arg
;
1305 tcsendbreak(g_io_channel_unix_get_fd(s
->fd_in
), 1);
1309 case CHR_IOCTL_SERIAL_GET_TIOCM
:
1312 int *targ
= (int *)arg
;
1313 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMGET
, &sarg
);
1315 if (sarg
& TIOCM_CTS
)
1316 *targ
|= CHR_TIOCM_CTS
;
1317 if (sarg
& TIOCM_CAR
)
1318 *targ
|= CHR_TIOCM_CAR
;
1319 if (sarg
& TIOCM_DSR
)
1320 *targ
|= CHR_TIOCM_DSR
;
1321 if (sarg
& TIOCM_RI
)
1322 *targ
|= CHR_TIOCM_RI
;
1323 if (sarg
& TIOCM_DTR
)
1324 *targ
|= CHR_TIOCM_DTR
;
1325 if (sarg
& TIOCM_RTS
)
1326 *targ
|= CHR_TIOCM_RTS
;
1329 case CHR_IOCTL_SERIAL_SET_TIOCM
:
1331 int sarg
= *(int *)arg
;
1333 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMGET
, &targ
);
1334 targ
&= ~(CHR_TIOCM_CTS
| CHR_TIOCM_CAR
| CHR_TIOCM_DSR
1335 | CHR_TIOCM_RI
| CHR_TIOCM_DTR
| CHR_TIOCM_RTS
);
1336 if (sarg
& CHR_TIOCM_CTS
)
1338 if (sarg
& CHR_TIOCM_CAR
)
1340 if (sarg
& CHR_TIOCM_DSR
)
1342 if (sarg
& CHR_TIOCM_RI
)
1344 if (sarg
& CHR_TIOCM_DTR
)
1346 if (sarg
& CHR_TIOCM_RTS
)
1348 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMSET
, &targ
);
1357 static void qemu_chr_close_tty(CharDriverState
*chr
)
1359 FDCharDriver
*s
= chr
->opaque
;
1363 fd
= g_io_channel_unix_get_fd(s
->fd_in
);
1373 static CharDriverState
*qemu_chr_open_tty_fd(int fd
)
1375 CharDriverState
*chr
;
1377 tty_serial_init(fd
, 115200, 'N', 8, 1);
1378 chr
= qemu_chr_open_fd(fd
, fd
);
1379 chr
->chr_ioctl
= tty_serial_ioctl
;
1380 chr
->chr_close
= qemu_chr_close_tty
;
1383 #endif /* __linux__ || __sun__ */
1385 #if defined(__linux__)
1387 #define HAVE_CHARDEV_PARPORT 1
1392 } ParallelCharDriver
;
1394 static int pp_hw_mode(ParallelCharDriver
*s
, uint16_t mode
)
1396 if (s
->mode
!= mode
) {
1398 if (ioctl(s
->fd
, PPSETMODE
, &m
) < 0)
1405 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1407 ParallelCharDriver
*drv
= chr
->opaque
;
1412 case CHR_IOCTL_PP_READ_DATA
:
1413 if (ioctl(fd
, PPRDATA
, &b
) < 0)
1415 *(uint8_t *)arg
= b
;
1417 case CHR_IOCTL_PP_WRITE_DATA
:
1418 b
= *(uint8_t *)arg
;
1419 if (ioctl(fd
, PPWDATA
, &b
) < 0)
1422 case CHR_IOCTL_PP_READ_CONTROL
:
1423 if (ioctl(fd
, PPRCONTROL
, &b
) < 0)
1425 /* Linux gives only the lowest bits, and no way to know data
1426 direction! For better compatibility set the fixed upper
1428 *(uint8_t *)arg
= b
| 0xc0;
1430 case CHR_IOCTL_PP_WRITE_CONTROL
:
1431 b
= *(uint8_t *)arg
;
1432 if (ioctl(fd
, PPWCONTROL
, &b
) < 0)
1435 case CHR_IOCTL_PP_READ_STATUS
:
1436 if (ioctl(fd
, PPRSTATUS
, &b
) < 0)
1438 *(uint8_t *)arg
= b
;
1440 case CHR_IOCTL_PP_DATA_DIR
:
1441 if (ioctl(fd
, PPDATADIR
, (int *)arg
) < 0)
1444 case CHR_IOCTL_PP_EPP_READ_ADDR
:
1445 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1446 struct ParallelIOArg
*parg
= arg
;
1447 int n
= read(fd
, parg
->buffer
, parg
->count
);
1448 if (n
!= parg
->count
) {
1453 case CHR_IOCTL_PP_EPP_READ
:
1454 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1455 struct ParallelIOArg
*parg
= arg
;
1456 int n
= read(fd
, parg
->buffer
, parg
->count
);
1457 if (n
!= parg
->count
) {
1462 case CHR_IOCTL_PP_EPP_WRITE_ADDR
:
1463 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1464 struct ParallelIOArg
*parg
= arg
;
1465 int n
= write(fd
, parg
->buffer
, parg
->count
);
1466 if (n
!= parg
->count
) {
1471 case CHR_IOCTL_PP_EPP_WRITE
:
1472 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1473 struct ParallelIOArg
*parg
= arg
;
1474 int n
= write(fd
, parg
->buffer
, parg
->count
);
1475 if (n
!= parg
->count
) {
1486 static void pp_close(CharDriverState
*chr
)
1488 ParallelCharDriver
*drv
= chr
->opaque
;
1491 pp_hw_mode(drv
, IEEE1284_MODE_COMPAT
);
1492 ioctl(fd
, PPRELEASE
);
1495 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1498 static CharDriverState
*qemu_chr_open_pp_fd(int fd
)
1500 CharDriverState
*chr
;
1501 ParallelCharDriver
*drv
;
1503 if (ioctl(fd
, PPCLAIM
) < 0) {
1508 drv
= g_malloc0(sizeof(ParallelCharDriver
));
1510 drv
->mode
= IEEE1284_MODE_COMPAT
;
1512 chr
= g_malloc0(sizeof(CharDriverState
));
1513 chr
->chr_write
= null_chr_write
;
1514 chr
->chr_ioctl
= pp_ioctl
;
1515 chr
->chr_close
= pp_close
;
1520 #endif /* __linux__ */
1522 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1524 #define HAVE_CHARDEV_PARPORT 1
1526 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1528 int fd
= (int)(intptr_t)chr
->opaque
;
1532 case CHR_IOCTL_PP_READ_DATA
:
1533 if (ioctl(fd
, PPIGDATA
, &b
) < 0)
1535 *(uint8_t *)arg
= b
;
1537 case CHR_IOCTL_PP_WRITE_DATA
:
1538 b
= *(uint8_t *)arg
;
1539 if (ioctl(fd
, PPISDATA
, &b
) < 0)
1542 case CHR_IOCTL_PP_READ_CONTROL
:
1543 if (ioctl(fd
, PPIGCTRL
, &b
) < 0)
1545 *(uint8_t *)arg
= b
;
1547 case CHR_IOCTL_PP_WRITE_CONTROL
:
1548 b
= *(uint8_t *)arg
;
1549 if (ioctl(fd
, PPISCTRL
, &b
) < 0)
1552 case CHR_IOCTL_PP_READ_STATUS
:
1553 if (ioctl(fd
, PPIGSTATUS
, &b
) < 0)
1555 *(uint8_t *)arg
= b
;
1563 static CharDriverState
*qemu_chr_open_pp_fd(int fd
)
1565 CharDriverState
*chr
;
1567 chr
= g_malloc0(sizeof(CharDriverState
));
1568 chr
->opaque
= (void *)(intptr_t)fd
;
1569 chr
->chr_write
= null_chr_write
;
1570 chr
->chr_ioctl
= pp_ioctl
;
1571 chr
->explicit_be_open
= true;
1580 HANDLE hcom
, hrecv
, hsend
;
1581 OVERLAPPED orecv
, osend
;
1588 HANDLE hInputReadyEvent
;
1589 HANDLE hInputDoneEvent
;
1590 HANDLE hInputThread
;
1591 uint8_t win_stdio_buf
;
1592 } WinStdioCharState
;
1594 #define NSENDBUF 2048
1595 #define NRECVBUF 2048
1596 #define MAXCONNECT 1
1597 #define NTIMEOUT 5000
1599 static int win_chr_poll(void *opaque
);
1600 static int win_chr_pipe_poll(void *opaque
);
1602 static void win_chr_close(CharDriverState
*chr
)
1604 WinCharState
*s
= chr
->opaque
;
1607 CloseHandle(s
->hsend
);
1611 CloseHandle(s
->hrecv
);
1615 CloseHandle(s
->hcom
);
1619 qemu_del_polling_cb(win_chr_pipe_poll
, chr
);
1621 qemu_del_polling_cb(win_chr_poll
, chr
);
1623 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1626 static int win_chr_init(CharDriverState
*chr
, const char *filename
)
1628 WinCharState
*s
= chr
->opaque
;
1630 COMMTIMEOUTS cto
= { 0, 0, 0, 0, 0};
1635 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1637 fprintf(stderr
, "Failed CreateEvent\n");
1640 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1642 fprintf(stderr
, "Failed CreateEvent\n");
1646 s
->hcom
= CreateFile(filename
, GENERIC_READ
|GENERIC_WRITE
, 0, NULL
,
1647 OPEN_EXISTING
, FILE_FLAG_OVERLAPPED
, 0);
1648 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1649 fprintf(stderr
, "Failed CreateFile (%lu)\n", GetLastError());
1654 if (!SetupComm(s
->hcom
, NRECVBUF
, NSENDBUF
)) {
1655 fprintf(stderr
, "Failed SetupComm\n");
1659 ZeroMemory(&comcfg
, sizeof(COMMCONFIG
));
1660 size
= sizeof(COMMCONFIG
);
1661 GetDefaultCommConfig(filename
, &comcfg
, &size
);
1662 comcfg
.dcb
.DCBlength
= sizeof(DCB
);
1663 CommConfigDialog(filename
, NULL
, &comcfg
);
1665 if (!SetCommState(s
->hcom
, &comcfg
.dcb
)) {
1666 fprintf(stderr
, "Failed SetCommState\n");
1670 if (!SetCommMask(s
->hcom
, EV_ERR
)) {
1671 fprintf(stderr
, "Failed SetCommMask\n");
1675 cto
.ReadIntervalTimeout
= MAXDWORD
;
1676 if (!SetCommTimeouts(s
->hcom
, &cto
)) {
1677 fprintf(stderr
, "Failed SetCommTimeouts\n");
1681 if (!ClearCommError(s
->hcom
, &err
, &comstat
)) {
1682 fprintf(stderr
, "Failed ClearCommError\n");
1685 qemu_add_polling_cb(win_chr_poll
, chr
);
1693 static int win_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len1
)
1695 WinCharState
*s
= chr
->opaque
;
1696 DWORD len
, ret
, size
, err
;
1699 ZeroMemory(&s
->osend
, sizeof(s
->osend
));
1700 s
->osend
.hEvent
= s
->hsend
;
1703 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, &s
->osend
);
1705 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, NULL
);
1707 err
= GetLastError();
1708 if (err
== ERROR_IO_PENDING
) {
1709 ret
= GetOverlappedResult(s
->hcom
, &s
->osend
, &size
, TRUE
);
1727 static int win_chr_read_poll(CharDriverState
*chr
)
1729 WinCharState
*s
= chr
->opaque
;
1731 s
->max_size
= qemu_chr_be_can_write(chr
);
1735 static void win_chr_readfile(CharDriverState
*chr
)
1737 WinCharState
*s
= chr
->opaque
;
1739 uint8_t buf
[READ_BUF_LEN
];
1742 ZeroMemory(&s
->orecv
, sizeof(s
->orecv
));
1743 s
->orecv
.hEvent
= s
->hrecv
;
1744 ret
= ReadFile(s
->hcom
, buf
, s
->len
, &size
, &s
->orecv
);
1746 err
= GetLastError();
1747 if (err
== ERROR_IO_PENDING
) {
1748 ret
= GetOverlappedResult(s
->hcom
, &s
->orecv
, &size
, TRUE
);
1753 qemu_chr_be_write(chr
, buf
, size
);
1757 static void win_chr_read(CharDriverState
*chr
)
1759 WinCharState
*s
= chr
->opaque
;
1761 if (s
->len
> s
->max_size
)
1762 s
->len
= s
->max_size
;
1766 win_chr_readfile(chr
);
1769 static int win_chr_poll(void *opaque
)
1771 CharDriverState
*chr
= opaque
;
1772 WinCharState
*s
= chr
->opaque
;
1776 ClearCommError(s
->hcom
, &comerr
, &status
);
1777 if (status
.cbInQue
> 0) {
1778 s
->len
= status
.cbInQue
;
1779 win_chr_read_poll(chr
);
1786 static CharDriverState
*qemu_chr_open_win_path(const char *filename
)
1788 CharDriverState
*chr
;
1791 chr
= g_malloc0(sizeof(CharDriverState
));
1792 s
= g_malloc0(sizeof(WinCharState
));
1794 chr
->chr_write
= win_chr_write
;
1795 chr
->chr_close
= win_chr_close
;
1797 if (win_chr_init(chr
, filename
) < 0) {
1805 static int win_chr_pipe_poll(void *opaque
)
1807 CharDriverState
*chr
= opaque
;
1808 WinCharState
*s
= chr
->opaque
;
1811 PeekNamedPipe(s
->hcom
, NULL
, 0, NULL
, &size
, NULL
);
1814 win_chr_read_poll(chr
);
1821 static int win_chr_pipe_init(CharDriverState
*chr
, const char *filename
)
1823 WinCharState
*s
= chr
->opaque
;
1831 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1833 fprintf(stderr
, "Failed CreateEvent\n");
1836 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1838 fprintf(stderr
, "Failed CreateEvent\n");
1842 snprintf(openname
, sizeof(openname
), "\\\\.\\pipe\\%s", filename
);
1843 s
->hcom
= CreateNamedPipe(openname
, PIPE_ACCESS_DUPLEX
| FILE_FLAG_OVERLAPPED
,
1844 PIPE_TYPE_BYTE
| PIPE_READMODE_BYTE
|
1846 MAXCONNECT
, NSENDBUF
, NRECVBUF
, NTIMEOUT
, NULL
);
1847 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1848 fprintf(stderr
, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1853 ZeroMemory(&ov
, sizeof(ov
));
1854 ov
.hEvent
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1855 ret
= ConnectNamedPipe(s
->hcom
, &ov
);
1857 fprintf(stderr
, "Failed ConnectNamedPipe\n");
1861 ret
= GetOverlappedResult(s
->hcom
, &ov
, &size
, TRUE
);
1863 fprintf(stderr
, "Failed GetOverlappedResult\n");
1865 CloseHandle(ov
.hEvent
);
1872 CloseHandle(ov
.hEvent
);
1875 qemu_add_polling_cb(win_chr_pipe_poll
, chr
);
1884 static CharDriverState
*qemu_chr_open_pipe(ChardevHostdev
*opts
)
1886 const char *filename
= opts
->device
;
1887 CharDriverState
*chr
;
1890 chr
= g_malloc0(sizeof(CharDriverState
));
1891 s
= g_malloc0(sizeof(WinCharState
));
1893 chr
->chr_write
= win_chr_write
;
1894 chr
->chr_close
= win_chr_close
;
1896 if (win_chr_pipe_init(chr
, filename
) < 0) {
1904 static CharDriverState
*qemu_chr_open_win_file(HANDLE fd_out
)
1906 CharDriverState
*chr
;
1909 chr
= g_malloc0(sizeof(CharDriverState
));
1910 s
= g_malloc0(sizeof(WinCharState
));
1913 chr
->chr_write
= win_chr_write
;
1917 static CharDriverState
*qemu_chr_open_win_con(void)
1919 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE
));
1922 static int win_stdio_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1924 HANDLE hStdOut
= GetStdHandle(STD_OUTPUT_HANDLE
);
1931 if (!WriteFile(hStdOut
, buf
, len1
, &dwSize
, NULL
)) {
1941 static void win_stdio_wait_func(void *opaque
)
1943 CharDriverState
*chr
= opaque
;
1944 WinStdioCharState
*stdio
= chr
->opaque
;
1945 INPUT_RECORD buf
[4];
1950 ret
= ReadConsoleInput(stdio
->hStdIn
, buf
, sizeof(buf
) / sizeof(*buf
),
1954 /* Avoid error storm */
1955 qemu_del_wait_object(stdio
->hStdIn
, NULL
, NULL
);
1959 for (i
= 0; i
< dwSize
; i
++) {
1960 KEY_EVENT_RECORD
*kev
= &buf
[i
].Event
.KeyEvent
;
1962 if (buf
[i
].EventType
== KEY_EVENT
&& kev
->bKeyDown
) {
1964 if (kev
->uChar
.AsciiChar
!= 0) {
1965 for (j
= 0; j
< kev
->wRepeatCount
; j
++) {
1966 if (qemu_chr_be_can_write(chr
)) {
1967 uint8_t c
= kev
->uChar
.AsciiChar
;
1968 qemu_chr_be_write(chr
, &c
, 1);
1976 static DWORD WINAPI
win_stdio_thread(LPVOID param
)
1978 CharDriverState
*chr
= param
;
1979 WinStdioCharState
*stdio
= chr
->opaque
;
1985 /* Wait for one byte */
1986 ret
= ReadFile(stdio
->hStdIn
, &stdio
->win_stdio_buf
, 1, &dwSize
, NULL
);
1988 /* Exit in case of error, continue if nothing read */
1996 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1997 if (stdio
->win_stdio_buf
== '\r') {
2001 /* Signal the main thread and wait until the byte was eaten */
2002 if (!SetEvent(stdio
->hInputReadyEvent
)) {
2005 if (WaitForSingleObject(stdio
->hInputDoneEvent
, INFINITE
)
2011 qemu_del_wait_object(stdio
->hInputReadyEvent
, NULL
, NULL
);
2015 static void win_stdio_thread_wait_func(void *opaque
)
2017 CharDriverState
*chr
= opaque
;
2018 WinStdioCharState
*stdio
= chr
->opaque
;
2020 if (qemu_chr_be_can_write(chr
)) {
2021 qemu_chr_be_write(chr
, &stdio
->win_stdio_buf
, 1);
2024 SetEvent(stdio
->hInputDoneEvent
);
2027 static void qemu_chr_set_echo_win_stdio(CharDriverState
*chr
, bool echo
)
2029 WinStdioCharState
*stdio
= chr
->opaque
;
2032 GetConsoleMode(stdio
->hStdIn
, &dwMode
);
2035 SetConsoleMode(stdio
->hStdIn
, dwMode
| ENABLE_ECHO_INPUT
);
2037 SetConsoleMode(stdio
->hStdIn
, dwMode
& ~ENABLE_ECHO_INPUT
);
2041 static void win_stdio_close(CharDriverState
*chr
)
2043 WinStdioCharState
*stdio
= chr
->opaque
;
2045 if (stdio
->hInputReadyEvent
!= INVALID_HANDLE_VALUE
) {
2046 CloseHandle(stdio
->hInputReadyEvent
);
2048 if (stdio
->hInputDoneEvent
!= INVALID_HANDLE_VALUE
) {
2049 CloseHandle(stdio
->hInputDoneEvent
);
2051 if (stdio
->hInputThread
!= INVALID_HANDLE_VALUE
) {
2052 TerminateThread(stdio
->hInputThread
, 0);
2055 g_free(chr
->opaque
);
2059 static CharDriverState
*qemu_chr_open_stdio(ChardevStdio
*opts
)
2061 CharDriverState
*chr
;
2062 WinStdioCharState
*stdio
;
2066 chr
= g_malloc0(sizeof(CharDriverState
));
2067 stdio
= g_malloc0(sizeof(WinStdioCharState
));
2069 stdio
->hStdIn
= GetStdHandle(STD_INPUT_HANDLE
);
2070 if (stdio
->hStdIn
== INVALID_HANDLE_VALUE
) {
2071 fprintf(stderr
, "cannot open stdio: invalid handle\n");
2075 is_console
= GetConsoleMode(stdio
->hStdIn
, &dwMode
) != 0;
2077 chr
->opaque
= stdio
;
2078 chr
->chr_write
= win_stdio_write
;
2079 chr
->chr_close
= win_stdio_close
;
2082 if (qemu_add_wait_object(stdio
->hStdIn
,
2083 win_stdio_wait_func
, chr
)) {
2084 fprintf(stderr
, "qemu_add_wait_object: failed\n");
2089 stdio
->hInputReadyEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
2090 stdio
->hInputDoneEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
2091 stdio
->hInputThread
= CreateThread(NULL
, 0, win_stdio_thread
,
2094 if (stdio
->hInputThread
== INVALID_HANDLE_VALUE
2095 || stdio
->hInputReadyEvent
== INVALID_HANDLE_VALUE
2096 || stdio
->hInputDoneEvent
== INVALID_HANDLE_VALUE
) {
2097 fprintf(stderr
, "cannot create stdio thread or event\n");
2100 if (qemu_add_wait_object(stdio
->hInputReadyEvent
,
2101 win_stdio_thread_wait_func
, chr
)) {
2102 fprintf(stderr
, "qemu_add_wait_object: failed\n");
2106 dwMode
|= ENABLE_LINE_INPUT
;
2109 /* set the terminal in raw mode */
2110 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2111 dwMode
|= ENABLE_PROCESSED_INPUT
;
2114 SetConsoleMode(stdio
->hStdIn
, dwMode
);
2116 chr
->chr_set_echo
= qemu_chr_set_echo_win_stdio
;
2117 qemu_chr_fe_set_echo(chr
, false);
2121 #endif /* !_WIN32 */
2124 /***********************************************************/
2125 /* UDP Net console */
2131 uint8_t buf
[READ_BUF_LEN
];
2137 static int udp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2139 NetCharDriver
*s
= chr
->opaque
;
2140 gsize bytes_written
;
2143 status
= g_io_channel_write_chars(s
->chan
, (const gchar
*)buf
, len
, &bytes_written
, NULL
);
2144 if (status
== G_IO_STATUS_EOF
) {
2146 } else if (status
!= G_IO_STATUS_NORMAL
) {
2150 return bytes_written
;
2153 static int udp_chr_read_poll(void *opaque
)
2155 CharDriverState
*chr
= opaque
;
2156 NetCharDriver
*s
= chr
->opaque
;
2158 s
->max_size
= qemu_chr_be_can_write(chr
);
2160 /* If there were any stray characters in the queue process them
2163 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2164 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2166 s
->max_size
= qemu_chr_be_can_write(chr
);
2171 static gboolean
udp_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
2173 CharDriverState
*chr
= opaque
;
2174 NetCharDriver
*s
= chr
->opaque
;
2175 gsize bytes_read
= 0;
2178 if (s
->max_size
== 0) {
2181 status
= g_io_channel_read_chars(s
->chan
, (gchar
*)s
->buf
, sizeof(s
->buf
),
2183 s
->bufcnt
= bytes_read
;
2184 s
->bufptr
= s
->bufcnt
;
2185 if (status
!= G_IO_STATUS_NORMAL
) {
2187 io_remove_watch_poll(s
->tag
);
2194 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2195 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2197 s
->max_size
= qemu_chr_be_can_write(chr
);
2203 static void udp_chr_update_read_handler(CharDriverState
*chr
)
2205 NetCharDriver
*s
= chr
->opaque
;
2208 io_remove_watch_poll(s
->tag
);
2213 s
->tag
= io_add_watch_poll(s
->chan
, udp_chr_read_poll
, udp_chr_read
, chr
);
2217 static void udp_chr_close(CharDriverState
*chr
)
2219 NetCharDriver
*s
= chr
->opaque
;
2221 io_remove_watch_poll(s
->tag
);
2225 g_io_channel_unref(s
->chan
);
2229 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2232 static CharDriverState
*qemu_chr_open_udp_fd(int fd
)
2234 CharDriverState
*chr
= NULL
;
2235 NetCharDriver
*s
= NULL
;
2237 chr
= g_malloc0(sizeof(CharDriverState
));
2238 s
= g_malloc0(sizeof(NetCharDriver
));
2241 s
->chan
= io_channel_from_socket(s
->fd
);
2245 chr
->chr_write
= udp_chr_write
;
2246 chr
->chr_update_read_handler
= udp_chr_update_read_handler
;
2247 chr
->chr_close
= udp_chr_close
;
2248 /* be isn't opened until we get a connection */
2249 chr
->explicit_be_open
= true;
2253 static CharDriverState
*qemu_chr_open_udp(QemuOpts
*opts
)
2255 Error
*local_err
= NULL
;
2258 fd
= inet_dgram_opts(opts
, &local_err
);
2262 return qemu_chr_open_udp_fd(fd
);
2265 /***********************************************************/
2266 /* TCP Net console */
2270 GIOChannel
*chan
, *listen_chan
;
2271 guint tag
, listen_tag
;
2281 static gboolean
tcp_chr_accept(GIOChannel
*chan
, GIOCondition cond
, void *opaque
);
2283 static int tcp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2285 TCPCharDriver
*s
= chr
->opaque
;
2287 return io_channel_send(s
->chan
, buf
, len
);
2289 /* XXX: indicate an error ? */
2294 static int tcp_chr_read_poll(void *opaque
)
2296 CharDriverState
*chr
= opaque
;
2297 TCPCharDriver
*s
= chr
->opaque
;
2300 s
->max_size
= qemu_chr_be_can_write(chr
);
2305 #define IAC_BREAK 243
2306 static void tcp_chr_process_IAC_bytes(CharDriverState
*chr
,
2308 uint8_t *buf
, int *size
)
2310 /* Handle any telnet client's basic IAC options to satisfy char by
2311 * char mode with no echo. All IAC options will be removed from
2312 * the buf and the do_telnetopt variable will be used to track the
2313 * state of the width of the IAC information.
2315 * IAC commands come in sets of 3 bytes with the exception of the
2316 * "IAC BREAK" command and the double IAC.
2322 for (i
= 0; i
< *size
; i
++) {
2323 if (s
->do_telnetopt
> 1) {
2324 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
2325 /* Double IAC means send an IAC */
2329 s
->do_telnetopt
= 1;
2331 if ((unsigned char)buf
[i
] == IAC_BREAK
&& s
->do_telnetopt
== 2) {
2332 /* Handle IAC break commands by sending a serial break */
2333 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
2338 if (s
->do_telnetopt
>= 4) {
2339 s
->do_telnetopt
= 1;
2342 if ((unsigned char)buf
[i
] == IAC
) {
2343 s
->do_telnetopt
= 2;
2354 static int tcp_get_msgfd(CharDriverState
*chr
)
2356 TCPCharDriver
*s
= chr
->opaque
;
2363 static void unix_process_msgfd(CharDriverState
*chr
, struct msghdr
*msg
)
2365 TCPCharDriver
*s
= chr
->opaque
;
2366 struct cmsghdr
*cmsg
;
2368 for (cmsg
= CMSG_FIRSTHDR(msg
); cmsg
; cmsg
= CMSG_NXTHDR(msg
, cmsg
)) {
2371 if (cmsg
->cmsg_len
!= CMSG_LEN(sizeof(int)) ||
2372 cmsg
->cmsg_level
!= SOL_SOCKET
||
2373 cmsg
->cmsg_type
!= SCM_RIGHTS
)
2376 fd
= *((int *)CMSG_DATA(cmsg
));
2380 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
2383 #ifndef MSG_CMSG_CLOEXEC
2384 qemu_set_cloexec(fd
);
2392 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2394 TCPCharDriver
*s
= chr
->opaque
;
2395 struct msghdr msg
= { NULL
, };
2396 struct iovec iov
[1];
2398 struct cmsghdr cmsg
;
2399 char control
[CMSG_SPACE(sizeof(int))];
2404 iov
[0].iov_base
= buf
;
2405 iov
[0].iov_len
= len
;
2409 msg
.msg_control
= &msg_control
;
2410 msg
.msg_controllen
= sizeof(msg_control
);
2412 #ifdef MSG_CMSG_CLOEXEC
2413 flags
|= MSG_CMSG_CLOEXEC
;
2415 ret
= recvmsg(s
->fd
, &msg
, flags
);
2416 if (ret
> 0 && s
->is_unix
) {
2417 unix_process_msgfd(chr
, &msg
);
2423 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2425 TCPCharDriver
*s
= chr
->opaque
;
2426 return qemu_recv(s
->fd
, buf
, len
, 0);
2430 static GSource
*tcp_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
2432 TCPCharDriver
*s
= chr
->opaque
;
2433 return g_io_create_watch(s
->chan
, cond
);
2436 static gboolean
tcp_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
2438 CharDriverState
*chr
= opaque
;
2439 TCPCharDriver
*s
= chr
->opaque
;
2440 uint8_t buf
[READ_BUF_LEN
];
2443 if (!s
->connected
|| s
->max_size
<= 0) {
2447 if (len
> s
->max_size
)
2449 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
2451 /* connection closed */
2453 if (s
->listen_chan
) {
2454 s
->listen_tag
= g_io_add_watch(s
->listen_chan
, G_IO_IN
, tcp_chr_accept
, chr
);
2457 io_remove_watch_poll(s
->tag
);
2460 g_io_channel_unref(s
->chan
);
2464 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2465 } else if (size
> 0) {
2466 if (s
->do_telnetopt
)
2467 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
2469 qemu_chr_be_write(chr
, buf
, size
);
2476 CharDriverState
*qemu_chr_open_eventfd(int eventfd
)
2478 return qemu_chr_open_fd(eventfd
, eventfd
);
2482 static void tcp_chr_connect(void *opaque
)
2484 CharDriverState
*chr
= opaque
;
2485 TCPCharDriver
*s
= chr
->opaque
;
2489 s
->tag
= io_add_watch_poll(s
->chan
, tcp_chr_read_poll
, tcp_chr_read
, chr
);
2491 qemu_chr_be_generic_open(chr
);
2494 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2495 static void tcp_chr_telnet_init(int fd
)
2498 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2499 IACSET(buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2500 send(fd
, (char *)buf
, 3, 0);
2501 IACSET(buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2502 send(fd
, (char *)buf
, 3, 0);
2503 IACSET(buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2504 send(fd
, (char *)buf
, 3, 0);
2505 IACSET(buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2506 send(fd
, (char *)buf
, 3, 0);
2509 static int tcp_chr_add_client(CharDriverState
*chr
, int fd
)
2511 TCPCharDriver
*s
= chr
->opaque
;
2515 qemu_set_nonblock(fd
);
2517 socket_set_nodelay(fd
);
2519 s
->chan
= io_channel_from_socket(fd
);
2520 if (s
->listen_tag
) {
2521 g_source_remove(s
->listen_tag
);
2524 tcp_chr_connect(chr
);
2529 static gboolean
tcp_chr_accept(GIOChannel
*channel
, GIOCondition cond
, void *opaque
)
2531 CharDriverState
*chr
= opaque
;
2532 TCPCharDriver
*s
= chr
->opaque
;
2533 struct sockaddr_in saddr
;
2535 struct sockaddr_un uaddr
;
2537 struct sockaddr
*addr
;
2544 len
= sizeof(uaddr
);
2545 addr
= (struct sockaddr
*)&uaddr
;
2549 len
= sizeof(saddr
);
2550 addr
= (struct sockaddr
*)&saddr
;
2552 fd
= qemu_accept(s
->listen_fd
, addr
, &len
);
2553 if (fd
< 0 && errno
!= EINTR
) {
2556 } else if (fd
>= 0) {
2557 if (s
->do_telnetopt
)
2558 tcp_chr_telnet_init(fd
);
2562 if (tcp_chr_add_client(chr
, fd
) < 0)
2568 static void tcp_chr_close(CharDriverState
*chr
)
2570 TCPCharDriver
*s
= chr
->opaque
;
2573 io_remove_watch_poll(s
->tag
);
2577 g_io_channel_unref(s
->chan
);
2581 if (s
->listen_fd
>= 0) {
2582 if (s
->listen_tag
) {
2583 g_source_remove(s
->listen_tag
);
2586 if (s
->listen_chan
) {
2587 g_io_channel_unref(s
->listen_chan
);
2589 closesocket(s
->listen_fd
);
2592 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2595 static CharDriverState
*qemu_chr_open_socket_fd(int fd
, bool do_nodelay
,
2596 bool is_listen
, bool is_telnet
,
2597 bool is_waitconnect
,
2600 CharDriverState
*chr
= NULL
;
2601 TCPCharDriver
*s
= NULL
;
2602 char host
[NI_MAXHOST
], serv
[NI_MAXSERV
];
2603 const char *left
= "", *right
= "";
2604 struct sockaddr_storage ss
;
2605 socklen_t ss_len
= sizeof(ss
);
2607 memset(&ss
, 0, ss_len
);
2608 if (getsockname(fd
, (struct sockaddr
*) &ss
, &ss_len
) != 0) {
2609 error_setg(errp
, "getsockname: %s", strerror(errno
));
2613 chr
= g_malloc0(sizeof(CharDriverState
));
2614 s
= g_malloc0(sizeof(TCPCharDriver
));
2621 chr
->filename
= g_malloc(256);
2622 switch (ss
.ss_family
) {
2626 snprintf(chr
->filename
, 256, "unix:%s%s",
2627 ((struct sockaddr_un
*)(&ss
))->sun_path
,
2628 is_listen
? ",server" : "");
2636 s
->do_nodelay
= do_nodelay
;
2637 getnameinfo((struct sockaddr
*) &ss
, ss_len
, host
, sizeof(host
),
2638 serv
, sizeof(serv
), NI_NUMERICHOST
| NI_NUMERICSERV
);
2639 snprintf(chr
->filename
, 256, "%s:%s%s%s:%s%s",
2640 is_telnet
? "telnet" : "tcp",
2641 left
, host
, right
, serv
,
2642 is_listen
? ",server" : "");
2647 chr
->chr_write
= tcp_chr_write
;
2648 chr
->chr_close
= tcp_chr_close
;
2649 chr
->get_msgfd
= tcp_get_msgfd
;
2650 chr
->chr_add_client
= tcp_chr_add_client
;
2651 chr
->chr_add_watch
= tcp_chr_add_watch
;
2652 /* be isn't opened until we get a connection */
2653 chr
->explicit_be_open
= true;
2657 s
->listen_chan
= io_channel_from_socket(s
->listen_fd
);
2658 s
->listen_tag
= g_io_add_watch(s
->listen_chan
, G_IO_IN
, tcp_chr_accept
, chr
);
2660 s
->do_telnetopt
= 1;
2665 socket_set_nodelay(fd
);
2666 s
->chan
= io_channel_from_socket(s
->fd
);
2667 tcp_chr_connect(chr
);
2670 if (is_listen
&& is_waitconnect
) {
2671 printf("QEMU waiting for connection on: %s\n",
2673 tcp_chr_accept(s
->listen_chan
, G_IO_IN
, chr
);
2674 qemu_set_nonblock(s
->listen_fd
);
2679 static CharDriverState
*qemu_chr_open_socket(QemuOpts
*opts
)
2681 CharDriverState
*chr
= NULL
;
2682 Error
*local_err
= NULL
;
2690 is_listen
= qemu_opt_get_bool(opts
, "server", 0);
2691 is_waitconnect
= qemu_opt_get_bool(opts
, "wait", 1);
2692 is_telnet
= qemu_opt_get_bool(opts
, "telnet", 0);
2693 do_nodelay
= !qemu_opt_get_bool(opts
, "delay", 1);
2694 is_unix
= qemu_opt_get(opts
, "path") != NULL
;
2700 fd
= unix_listen_opts(opts
, &local_err
);
2702 fd
= unix_connect_opts(opts
, &local_err
, NULL
, NULL
);
2706 fd
= inet_listen_opts(opts
, 0, &local_err
);
2708 fd
= inet_connect_opts(opts
, &local_err
, NULL
, NULL
);
2715 if (!is_waitconnect
)
2716 qemu_set_nonblock(fd
);
2718 chr
= qemu_chr_open_socket_fd(fd
, do_nodelay
, is_listen
, is_telnet
,
2719 is_waitconnect
, &local_err
);
2720 if (error_is_set(&local_err
)) {
2728 qerror_report_err(local_err
);
2729 error_free(local_err
);
2735 g_free(chr
->opaque
);
2741 /*********************************************************/
2742 /* Ring buffer chardev */
2749 } RingBufCharDriver
;
2751 static size_t ringbuf_count(const CharDriverState
*chr
)
2753 const RingBufCharDriver
*d
= chr
->opaque
;
2755 return d
->prod
- d
->cons
;
2758 static int ringbuf_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2760 RingBufCharDriver
*d
= chr
->opaque
;
2763 if (!buf
|| (len
< 0)) {
2767 for (i
= 0; i
< len
; i
++ ) {
2768 d
->cbuf
[d
->prod
++ & (d
->size
- 1)] = buf
[i
];
2769 if (d
->prod
- d
->cons
> d
->size
) {
2770 d
->cons
= d
->prod
- d
->size
;
2777 static int ringbuf_chr_read(CharDriverState
*chr
, uint8_t *buf
, int len
)
2779 RingBufCharDriver
*d
= chr
->opaque
;
2782 for (i
= 0; i
< len
&& d
->cons
!= d
->prod
; i
++) {
2783 buf
[i
] = d
->cbuf
[d
->cons
++ & (d
->size
- 1)];
2789 static void ringbuf_chr_close(struct CharDriverState
*chr
)
2791 RingBufCharDriver
*d
= chr
->opaque
;
2798 static CharDriverState
*qemu_chr_open_ringbuf(ChardevRingbuf
*opts
,
2801 CharDriverState
*chr
;
2802 RingBufCharDriver
*d
;
2804 chr
= g_malloc0(sizeof(CharDriverState
));
2805 d
= g_malloc(sizeof(*d
));
2807 d
->size
= opts
->has_size
? opts
->size
: 65536;
2809 /* The size must be power of 2 */
2810 if (d
->size
& (d
->size
- 1)) {
2811 error_setg(errp
, "size of ringbuf chardev must be power of two");
2817 d
->cbuf
= g_malloc0(d
->size
);
2820 chr
->chr_write
= ringbuf_chr_write
;
2821 chr
->chr_close
= ringbuf_chr_close
;
2831 static bool chr_is_ringbuf(const CharDriverState
*chr
)
2833 return chr
->chr_write
== ringbuf_chr_write
;
2836 void qmp_ringbuf_write(const char *device
, const char *data
,
2837 bool has_format
, enum DataFormat format
,
2840 CharDriverState
*chr
;
2841 const uint8_t *write_data
;
2845 chr
= qemu_chr_find(device
);
2847 error_setg(errp
, "Device '%s' not found", device
);
2851 if (!chr_is_ringbuf(chr
)) {
2852 error_setg(errp
,"%s is not a ringbuf device", device
);
2856 if (has_format
&& (format
== DATA_FORMAT_BASE64
)) {
2857 write_data
= g_base64_decode(data
, &write_count
);
2859 write_data
= (uint8_t *)data
;
2860 write_count
= strlen(data
);
2863 ret
= ringbuf_chr_write(chr
, write_data
, write_count
);
2865 if (write_data
!= (uint8_t *)data
) {
2866 g_free((void *)write_data
);
2870 error_setg(errp
, "Failed to write to device %s", device
);
2875 char *qmp_ringbuf_read(const char *device
, int64_t size
,
2876 bool has_format
, enum DataFormat format
,
2879 CharDriverState
*chr
;
2884 chr
= qemu_chr_find(device
);
2886 error_setg(errp
, "Device '%s' not found", device
);
2890 if (!chr_is_ringbuf(chr
)) {
2891 error_setg(errp
,"%s is not a ringbuf device", device
);
2896 error_setg(errp
, "size must be greater than zero");
2900 count
= ringbuf_count(chr
);
2901 size
= size
> count
? count
: size
;
2902 read_data
= g_malloc(size
+ 1);
2904 ringbuf_chr_read(chr
, read_data
, size
);
2906 if (has_format
&& (format
== DATA_FORMAT_BASE64
)) {
2907 data
= g_base64_encode(read_data
, size
);
2911 * FIXME should read only complete, valid UTF-8 characters up
2912 * to @size bytes. Invalid sequences should be replaced by a
2913 * suitable replacement character. Except when (and only
2914 * when) ring buffer lost characters since last read, initial
2915 * continuation characters should be dropped.
2917 read_data
[size
] = 0;
2918 data
= (char *)read_data
;
2924 QemuOpts
*qemu_chr_parse_compat(const char *label
, const char *filename
)
2926 char host
[65], port
[33], width
[8], height
[8];
2930 Error
*local_err
= NULL
;
2932 opts
= qemu_opts_create(qemu_find_opts("chardev"), label
, 1, &local_err
);
2933 if (error_is_set(&local_err
)) {
2934 qerror_report_err(local_err
);
2935 error_free(local_err
);
2939 if (strstart(filename
, "mon:", &p
)) {
2941 qemu_opt_set(opts
, "mux", "on");
2944 if (strcmp(filename
, "null") == 0 ||
2945 strcmp(filename
, "pty") == 0 ||
2946 strcmp(filename
, "msmouse") == 0 ||
2947 strcmp(filename
, "braille") == 0 ||
2948 strcmp(filename
, "stdio") == 0) {
2949 qemu_opt_set(opts
, "backend", filename
);
2952 if (strstart(filename
, "vc", &p
)) {
2953 qemu_opt_set(opts
, "backend", "vc");
2955 if (sscanf(p
+1, "%8[0-9]x%8[0-9]", width
, height
) == 2) {
2957 qemu_opt_set(opts
, "width", width
);
2958 qemu_opt_set(opts
, "height", height
);
2959 } else if (sscanf(p
+1, "%8[0-9]Cx%8[0-9]C", width
, height
) == 2) {
2961 qemu_opt_set(opts
, "cols", width
);
2962 qemu_opt_set(opts
, "rows", height
);
2969 if (strcmp(filename
, "con:") == 0) {
2970 qemu_opt_set(opts
, "backend", "console");
2973 if (strstart(filename
, "COM", NULL
)) {
2974 qemu_opt_set(opts
, "backend", "serial");
2975 qemu_opt_set(opts
, "path", filename
);
2978 if (strstart(filename
, "file:", &p
)) {
2979 qemu_opt_set(opts
, "backend", "file");
2980 qemu_opt_set(opts
, "path", p
);
2983 if (strstart(filename
, "pipe:", &p
)) {
2984 qemu_opt_set(opts
, "backend", "pipe");
2985 qemu_opt_set(opts
, "path", p
);
2988 if (strstart(filename
, "tcp:", &p
) ||
2989 strstart(filename
, "telnet:", &p
)) {
2990 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2992 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1)
2995 qemu_opt_set(opts
, "backend", "socket");
2996 qemu_opt_set(opts
, "host", host
);
2997 qemu_opt_set(opts
, "port", port
);
2998 if (p
[pos
] == ',') {
2999 if (qemu_opts_do_parse(opts
, p
+pos
+1, NULL
) != 0)
3002 if (strstart(filename
, "telnet:", &p
))
3003 qemu_opt_set(opts
, "telnet", "on");
3006 if (strstart(filename
, "udp:", &p
)) {
3007 qemu_opt_set(opts
, "backend", "udp");
3008 if (sscanf(p
, "%64[^:]:%32[^@,]%n", host
, port
, &pos
) < 2) {
3010 if (sscanf(p
, ":%32[^@,]%n", port
, &pos
) < 1) {
3014 qemu_opt_set(opts
, "host", host
);
3015 qemu_opt_set(opts
, "port", port
);
3016 if (p
[pos
] == '@') {
3018 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
3020 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
3024 qemu_opt_set(opts
, "localaddr", host
);
3025 qemu_opt_set(opts
, "localport", port
);
3029 if (strstart(filename
, "unix:", &p
)) {
3030 qemu_opt_set(opts
, "backend", "socket");
3031 if (qemu_opts_do_parse(opts
, p
, "path") != 0)
3035 if (strstart(filename
, "/dev/parport", NULL
) ||
3036 strstart(filename
, "/dev/ppi", NULL
)) {
3037 qemu_opt_set(opts
, "backend", "parport");
3038 qemu_opt_set(opts
, "path", filename
);
3041 if (strstart(filename
, "/dev/", NULL
)) {
3042 qemu_opt_set(opts
, "backend", "tty");
3043 qemu_opt_set(opts
, "path", filename
);
3048 qemu_opts_del(opts
);
3052 static void qemu_chr_parse_file_out(QemuOpts
*opts
, ChardevBackend
*backend
,
3055 const char *path
= qemu_opt_get(opts
, "path");
3058 error_setg(errp
, "chardev: file: no filename given");
3061 backend
->file
= g_new0(ChardevFile
, 1);
3062 backend
->file
->out
= g_strdup(path
);
3065 static void qemu_chr_parse_stdio(QemuOpts
*opts
, ChardevBackend
*backend
,
3068 backend
->stdio
= g_new0(ChardevStdio
, 1);
3069 backend
->stdio
->has_signal
= true;
3070 backend
->stdio
->signal
=
3071 qemu_opt_get_bool(opts
, "signal", display_type
!= DT_NOGRAPHIC
);
3074 static void qemu_chr_parse_serial(QemuOpts
*opts
, ChardevBackend
*backend
,
3077 const char *device
= qemu_opt_get(opts
, "path");
3079 if (device
== NULL
) {
3080 error_setg(errp
, "chardev: serial/tty: no device path given");
3083 backend
->serial
= g_new0(ChardevHostdev
, 1);
3084 backend
->serial
->device
= g_strdup(device
);
3087 static void qemu_chr_parse_parallel(QemuOpts
*opts
, ChardevBackend
*backend
,
3090 const char *device
= qemu_opt_get(opts
, "path");
3092 if (device
== NULL
) {
3093 error_setg(errp
, "chardev: parallel: no device path given");
3096 backend
->parallel
= g_new0(ChardevHostdev
, 1);
3097 backend
->parallel
->device
= g_strdup(device
);
3100 static void qemu_chr_parse_pipe(QemuOpts
*opts
, ChardevBackend
*backend
,
3103 const char *device
= qemu_opt_get(opts
, "path");
3105 if (device
== NULL
) {
3106 error_setg(errp
, "chardev: pipe: no device path given");
3109 backend
->pipe
= g_new0(ChardevHostdev
, 1);
3110 backend
->pipe
->device
= g_strdup(device
);
3113 static void qemu_chr_parse_ringbuf(QemuOpts
*opts
, ChardevBackend
*backend
,
3118 backend
->memory
= g_new0(ChardevRingbuf
, 1);
3120 val
= qemu_opt_get_number(opts
, "size", 0);
3122 backend
->memory
->has_size
= true;
3123 backend
->memory
->size
= val
;
3127 typedef struct CharDriver
{
3130 CharDriverState
*(*open
)(QemuOpts
*opts
);
3131 /* new, qapi-based */
3133 void (*parse
)(QemuOpts
*opts
, ChardevBackend
*backend
, Error
**errp
);
3136 static GSList
*backends
;
3138 void register_char_driver(const char *name
, CharDriverState
*(*open
)(QemuOpts
*))
3142 s
= g_malloc0(sizeof(*s
));
3143 s
->name
= g_strdup(name
);
3146 backends
= g_slist_append(backends
, s
);
3149 void register_char_driver_qapi(const char *name
, int kind
,
3150 void (*parse
)(QemuOpts
*opts
, ChardevBackend
*backend
, Error
**errp
))
3154 s
= g_malloc0(sizeof(*s
));
3155 s
->name
= g_strdup(name
);
3159 backends
= g_slist_append(backends
, s
);
3162 CharDriverState
*qemu_chr_new_from_opts(QemuOpts
*opts
,
3163 void (*init
)(struct CharDriverState
*s
),
3167 CharDriverState
*chr
;
3170 if (qemu_opts_id(opts
) == NULL
) {
3171 error_setg(errp
, "chardev: no id specified");
3175 if (qemu_opt_get(opts
, "backend") == NULL
) {
3176 error_setg(errp
, "chardev: \"%s\" missing backend",
3177 qemu_opts_id(opts
));
3180 for (i
= backends
; i
; i
= i
->next
) {
3183 if (strcmp(cd
->name
, qemu_opt_get(opts
, "backend")) == 0) {
3188 error_setg(errp
, "chardev: backend \"%s\" not found",
3189 qemu_opt_get(opts
, "backend"));
3194 /* using new, qapi init */
3195 ChardevBackend
*backend
= g_new0(ChardevBackend
, 1);
3196 ChardevReturn
*ret
= NULL
;
3197 const char *id
= qemu_opts_id(opts
);
3198 const char *bid
= NULL
;
3200 if (qemu_opt_get_bool(opts
, "mux", 0)) {
3201 bid
= g_strdup_printf("%s-base", id
);
3205 backend
->kind
= cd
->kind
;
3207 cd
->parse(opts
, backend
, errp
);
3208 if (error_is_set(errp
)) {
3212 ret
= qmp_chardev_add(bid
? bid
: id
, backend
, errp
);
3213 if (error_is_set(errp
)) {
3218 qapi_free_ChardevBackend(backend
);
3219 qapi_free_ChardevReturn(ret
);
3220 backend
= g_new0(ChardevBackend
, 1);
3221 backend
->mux
= g_new0(ChardevMux
, 1);
3222 backend
->kind
= CHARDEV_BACKEND_KIND_MUX
;
3223 backend
->mux
->chardev
= g_strdup(bid
);
3224 ret
= qmp_chardev_add(id
, backend
, errp
);
3225 if (error_is_set(errp
)) {
3230 chr
= qemu_chr_find(id
);
3233 qapi_free_ChardevBackend(backend
);
3234 qapi_free_ChardevReturn(ret
);
3238 chr
= cd
->open(opts
);
3240 error_setg(errp
, "chardev: opening backend \"%s\" failed",
3241 qemu_opt_get(opts
, "backend"));
3246 chr
->filename
= g_strdup(qemu_opt_get(opts
, "backend"));
3248 /* if we didn't create the chardev via qmp_chardev_add, we
3249 * need to send the OPENED event here
3251 if (!chr
->explicit_be_open
) {
3252 qemu_chr_be_event(chr
, CHR_EVENT_OPENED
);
3254 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3256 if (qemu_opt_get_bool(opts
, "mux", 0)) {
3257 CharDriverState
*base
= chr
;
3258 int len
= strlen(qemu_opts_id(opts
)) + 6;
3259 base
->label
= g_malloc(len
);
3260 snprintf(base
->label
, len
, "%s-base", qemu_opts_id(opts
));
3261 chr
= qemu_chr_open_mux(base
);
3262 chr
->filename
= base
->filename
;
3263 chr
->avail_connections
= MAX_MUX
;
3264 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3266 chr
->avail_connections
= 1;
3268 chr
->label
= g_strdup(qemu_opts_id(opts
));
3273 qemu_opts_del(opts
);
3277 CharDriverState
*qemu_chr_new(const char *label
, const char *filename
, void (*init
)(struct CharDriverState
*s
))
3280 CharDriverState
*chr
;
3284 if (strstart(filename
, "chardev:", &p
)) {
3285 return qemu_chr_find(p
);
3288 opts
= qemu_chr_parse_compat(label
, filename
);
3292 chr
= qemu_chr_new_from_opts(opts
, init
, &err
);
3293 if (error_is_set(&err
)) {
3294 fprintf(stderr
, "%s\n", error_get_pretty(err
));
3297 if (chr
&& qemu_opt_get_bool(opts
, "mux", 0)) {
3298 qemu_chr_fe_claim_no_fail(chr
);
3299 monitor_init(chr
, MONITOR_USE_READLINE
);
3304 void qemu_chr_fe_set_echo(struct CharDriverState
*chr
, bool echo
)
3306 if (chr
->chr_set_echo
) {
3307 chr
->chr_set_echo(chr
, echo
);
3311 void qemu_chr_fe_set_open(struct CharDriverState
*chr
, int fe_open
)
3313 if (chr
->fe_open
== fe_open
) {
3316 chr
->fe_open
= fe_open
;
3317 if (chr
->chr_set_fe_open
) {
3318 chr
->chr_set_fe_open(chr
, fe_open
);
3322 int qemu_chr_fe_add_watch(CharDriverState
*s
, GIOCondition cond
,
3323 GIOFunc func
, void *user_data
)
3328 if (s
->chr_add_watch
== NULL
) {
3332 src
= s
->chr_add_watch(s
, cond
);
3333 g_source_set_callback(src
, (GSourceFunc
)func
, user_data
, NULL
);
3334 tag
= g_source_attach(src
, NULL
);
3335 g_source_unref(src
);
3340 int qemu_chr_fe_claim(CharDriverState
*s
)
3342 if (s
->avail_connections
< 1) {
3345 s
->avail_connections
--;
3349 void qemu_chr_fe_claim_no_fail(CharDriverState
*s
)
3351 if (qemu_chr_fe_claim(s
) != 0) {
3352 fprintf(stderr
, "%s: error chardev \"%s\" already used\n",
3353 __func__
, s
->label
);
3358 void qemu_chr_fe_release(CharDriverState
*s
)
3360 s
->avail_connections
++;
3363 void qemu_chr_delete(CharDriverState
*chr
)
3365 QTAILQ_REMOVE(&chardevs
, chr
, next
);
3366 if (chr
->chr_close
) {
3367 chr
->chr_close(chr
);
3369 g_free(chr
->filename
);
3372 qemu_opts_del(chr
->opts
);
3377 ChardevInfoList
*qmp_query_chardev(Error
**errp
)
3379 ChardevInfoList
*chr_list
= NULL
;
3380 CharDriverState
*chr
;
3382 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
3383 ChardevInfoList
*info
= g_malloc0(sizeof(*info
));
3384 info
->value
= g_malloc0(sizeof(*info
->value
));
3385 info
->value
->label
= g_strdup(chr
->label
);
3386 info
->value
->filename
= g_strdup(chr
->filename
);
3388 info
->next
= chr_list
;
3395 CharDriverState
*qemu_chr_find(const char *name
)
3397 CharDriverState
*chr
;
3399 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
3400 if (strcmp(chr
->label
, name
) != 0)
3407 /* Get a character (serial) device interface. */
3408 CharDriverState
*qemu_char_get_next_serial(void)
3410 static int next_serial
;
3411 CharDriverState
*chr
;
3413 /* FIXME: This function needs to go away: use chardev properties! */
3415 while (next_serial
< MAX_SERIAL_PORTS
&& serial_hds
[next_serial
]) {
3416 chr
= serial_hds
[next_serial
++];
3417 qemu_chr_fe_claim_no_fail(chr
);
3423 QemuOptsList qemu_chardev_opts
= {
3425 .implied_opt_name
= "backend",
3426 .head
= QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts
.head
),
3430 .type
= QEMU_OPT_STRING
,
3433 .type
= QEMU_OPT_STRING
,
3436 .type
= QEMU_OPT_STRING
,
3439 .type
= QEMU_OPT_STRING
,
3441 .name
= "localaddr",
3442 .type
= QEMU_OPT_STRING
,
3444 .name
= "localport",
3445 .type
= QEMU_OPT_STRING
,
3448 .type
= QEMU_OPT_NUMBER
,
3451 .type
= QEMU_OPT_BOOL
,
3454 .type
= QEMU_OPT_BOOL
,
3457 .type
= QEMU_OPT_BOOL
,
3460 .type
= QEMU_OPT_BOOL
,
3463 .type
= QEMU_OPT_BOOL
,
3466 .type
= QEMU_OPT_BOOL
,
3469 .type
= QEMU_OPT_NUMBER
,
3472 .type
= QEMU_OPT_NUMBER
,
3475 .type
= QEMU_OPT_NUMBER
,
3478 .type
= QEMU_OPT_NUMBER
,
3481 .type
= QEMU_OPT_BOOL
,
3484 .type
= QEMU_OPT_BOOL
,
3487 .type
= QEMU_OPT_STRING
,
3490 .type
= QEMU_OPT_NUMBER
,
3493 .type
= QEMU_OPT_SIZE
,
3495 { /* end of list */ }
3501 static CharDriverState
*qmp_chardev_open_file(ChardevFile
*file
, Error
**errp
)
3506 error_setg(errp
, "input file not supported");
3510 out
= CreateFile(file
->out
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
3511 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
3512 if (out
== INVALID_HANDLE_VALUE
) {
3513 error_setg(errp
, "open %s failed", file
->out
);
3516 return qemu_chr_open_win_file(out
);
3519 static CharDriverState
*qmp_chardev_open_serial(ChardevHostdev
*serial
,
3522 return qemu_chr_open_win_path(serial
->device
);
3525 static CharDriverState
*qmp_chardev_open_parallel(ChardevHostdev
*parallel
,
3528 error_setg(errp
, "character device backend type 'parallel' not supported");
3534 static int qmp_chardev_open_file_source(char *src
, int flags
,
3539 TFR(fd
= qemu_open(src
, flags
, 0666));
3541 error_setg(errp
, "open %s: %s", src
, strerror(errno
));
3546 static CharDriverState
*qmp_chardev_open_file(ChardevFile
*file
, Error
**errp
)
3548 int flags
, in
= -1, out
= -1;
3550 flags
= O_WRONLY
| O_TRUNC
| O_CREAT
| O_BINARY
;
3551 out
= qmp_chardev_open_file_source(file
->out
, flags
, errp
);
3552 if (error_is_set(errp
)) {
3558 in
= qmp_chardev_open_file_source(file
->in
, flags
, errp
);
3559 if (error_is_set(errp
)) {
3565 return qemu_chr_open_fd(in
, out
);
3568 static CharDriverState
*qmp_chardev_open_serial(ChardevHostdev
*serial
,
3571 #ifdef HAVE_CHARDEV_TTY
3574 fd
= qmp_chardev_open_file_source(serial
->device
, O_RDWR
, errp
);
3575 if (error_is_set(errp
)) {
3578 qemu_set_nonblock(fd
);
3579 return qemu_chr_open_tty_fd(fd
);
3581 error_setg(errp
, "character device backend type 'serial' not supported");
3586 static CharDriverState
*qmp_chardev_open_parallel(ChardevHostdev
*parallel
,
3589 #ifdef HAVE_CHARDEV_PARPORT
3592 fd
= qmp_chardev_open_file_source(parallel
->device
, O_RDWR
, errp
);
3593 if (error_is_set(errp
)) {
3596 return qemu_chr_open_pp_fd(fd
);
3598 error_setg(errp
, "character device backend type 'parallel' not supported");
3605 static CharDriverState
*qmp_chardev_open_socket(ChardevSocket
*sock
,
3608 SocketAddress
*addr
= sock
->addr
;
3609 bool do_nodelay
= sock
->has_nodelay
? sock
->nodelay
: false;
3610 bool is_listen
= sock
->has_server
? sock
->server
: true;
3611 bool is_telnet
= sock
->has_telnet
? sock
->telnet
: false;
3612 bool is_waitconnect
= sock
->has_wait
? sock
->wait
: false;
3616 fd
= socket_listen(addr
, errp
);
3618 fd
= socket_connect(addr
, errp
, NULL
, NULL
);
3620 if (error_is_set(errp
)) {
3623 return qemu_chr_open_socket_fd(fd
, do_nodelay
, is_listen
,
3624 is_telnet
, is_waitconnect
, errp
);
3627 static CharDriverState
*qmp_chardev_open_udp(ChardevUdp
*udp
,
3632 fd
= socket_dgram(udp
->remote
, udp
->local
, errp
);
3633 if (error_is_set(errp
)) {
3636 return qemu_chr_open_udp_fd(fd
);
3639 ChardevReturn
*qmp_chardev_add(const char *id
, ChardevBackend
*backend
,
3642 ChardevReturn
*ret
= g_new0(ChardevReturn
, 1);
3643 CharDriverState
*base
, *chr
= NULL
;
3645 chr
= qemu_chr_find(id
);
3647 error_setg(errp
, "Chardev '%s' already exists", id
);
3652 switch (backend
->kind
) {
3653 case CHARDEV_BACKEND_KIND_FILE
:
3654 chr
= qmp_chardev_open_file(backend
->file
, errp
);
3656 case CHARDEV_BACKEND_KIND_SERIAL
:
3657 chr
= qmp_chardev_open_serial(backend
->serial
, errp
);
3659 case CHARDEV_BACKEND_KIND_PARALLEL
:
3660 chr
= qmp_chardev_open_parallel(backend
->parallel
, errp
);
3662 case CHARDEV_BACKEND_KIND_PIPE
:
3663 chr
= qemu_chr_open_pipe(backend
->pipe
);
3665 case CHARDEV_BACKEND_KIND_SOCKET
:
3666 chr
= qmp_chardev_open_socket(backend
->socket
, errp
);
3668 case CHARDEV_BACKEND_KIND_UDP
:
3669 chr
= qmp_chardev_open_udp(backend
->udp
, errp
);
3671 #ifdef HAVE_CHARDEV_TTY
3672 case CHARDEV_BACKEND_KIND_PTY
:
3673 chr
= qemu_chr_open_pty(id
, ret
);
3676 case CHARDEV_BACKEND_KIND_NULL
:
3677 chr
= qemu_chr_open_null();
3679 case CHARDEV_BACKEND_KIND_MUX
:
3680 base
= qemu_chr_find(backend
->mux
->chardev
);
3682 error_setg(errp
, "mux: base chardev %s not found",
3683 backend
->mux
->chardev
);
3686 chr
= qemu_chr_open_mux(base
);
3688 case CHARDEV_BACKEND_KIND_MSMOUSE
:
3689 chr
= qemu_chr_open_msmouse();
3691 #ifdef CONFIG_BRLAPI
3692 case CHARDEV_BACKEND_KIND_BRAILLE
:
3693 chr
= chr_baum_init();
3696 case CHARDEV_BACKEND_KIND_STDIO
:
3697 chr
= qemu_chr_open_stdio(backend
->stdio
);
3700 case CHARDEV_BACKEND_KIND_CONSOLE
:
3701 chr
= qemu_chr_open_win_con();
3705 case CHARDEV_BACKEND_KIND_SPICEVMC
:
3706 chr
= qemu_chr_open_spice_vmc(backend
->spicevmc
->type
);
3708 case CHARDEV_BACKEND_KIND_SPICEPORT
:
3709 chr
= qemu_chr_open_spice_port(backend
->spiceport
->fqdn
);
3712 case CHARDEV_BACKEND_KIND_VC
:
3713 chr
= vc_init(backend
->vc
);
3715 case CHARDEV_BACKEND_KIND_MEMORY
:
3716 chr
= qemu_chr_open_ringbuf(backend
->memory
, errp
);
3719 error_setg(errp
, "unknown chardev backend (%d)", backend
->kind
);
3723 if (chr
== NULL
&& !error_is_set(errp
)) {
3724 error_setg(errp
, "Failed to create chardev");
3727 chr
->label
= g_strdup(id
);
3728 chr
->avail_connections
=
3729 (backend
->kind
== CHARDEV_BACKEND_KIND_MUX
) ? MAX_MUX
: 1;
3730 if (!chr
->filename
) {
3731 chr
->filename
= g_strdup(ChardevBackendKind_lookup
[backend
->kind
]);
3733 if (!chr
->explicit_be_open
) {
3734 qemu_chr_be_event(chr
, CHR_EVENT_OPENED
);
3736 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3744 void qmp_chardev_remove(const char *id
, Error
**errp
)
3746 CharDriverState
*chr
;
3748 chr
= qemu_chr_find(id
);
3750 error_setg(errp
, "Chardev '%s' not found", id
);
3753 if (chr
->chr_can_read
|| chr
->chr_read
||
3754 chr
->chr_event
|| chr
->handler_opaque
) {
3755 error_setg(errp
, "Chardev '%s' is busy", id
);
3758 qemu_chr_delete(chr
);
3761 static void register_types(void)
3763 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL
, NULL
);
3764 register_char_driver("socket", qemu_chr_open_socket
);
3765 register_char_driver("udp", qemu_chr_open_udp
);
3766 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY
,
3767 qemu_chr_parse_ringbuf
);
3768 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE
,
3769 qemu_chr_parse_file_out
);
3770 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO
,
3771 qemu_chr_parse_stdio
);
3772 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL
,
3773 qemu_chr_parse_serial
);
3774 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL
,
3775 qemu_chr_parse_serial
);
3776 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL
,
3777 qemu_chr_parse_parallel
);
3778 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL
,
3779 qemu_chr_parse_parallel
);
3780 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY
, NULL
);
3781 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE
, NULL
);
3782 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE
,
3783 qemu_chr_parse_pipe
);
3786 type_init(register_types
);