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 "char/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(__GLIBC__)
58 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
63 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
64 #include <dev/ppbus/ppi.h>
65 #include <dev/ppbus/ppbconf.h>
66 #elif defined(__DragonFly__)
67 #include <dev/misc/ppi/ppi.h>
68 #include <bus/ppbus/ppbconf.h>
74 #include <linux/ppdev.h>
75 #include <linux/parport.h>
79 #include <sys/ethernet.h>
80 #include <sys/sockio.h>
81 #include <netinet/arp.h>
82 #include <netinet/in.h>
83 #include <netinet/in_systm.h>
84 #include <netinet/ip.h>
85 #include <netinet/ip_icmp.h> // must come after ip.h
86 #include <netinet/udp.h>
87 #include <netinet/tcp.h>
95 #include "qemu/sockets.h"
96 #include "ui/qemu-spice.h"
98 #define READ_BUF_LEN 4096
100 /***********************************************************/
101 /* character device */
103 static QTAILQ_HEAD(CharDriverStateHead
, CharDriverState
) chardevs
=
104 QTAILQ_HEAD_INITIALIZER(chardevs
);
106 void qemu_chr_be_event(CharDriverState
*s
, int event
)
108 /* Keep track if the char device is open */
110 case CHR_EVENT_OPENED
:
113 case CHR_EVENT_CLOSED
:
120 s
->chr_event(s
->handler_opaque
, event
);
123 static gboolean
qemu_chr_be_generic_open_bh(gpointer opaque
)
125 CharDriverState
*s
= opaque
;
126 qemu_chr_be_event(s
, CHR_EVENT_OPENED
);
131 void qemu_chr_be_generic_open(CharDriverState
*s
)
133 if (s
->idle_tag
== 0) {
134 s
->idle_tag
= g_idle_add(qemu_chr_be_generic_open_bh
, s
);
138 int qemu_chr_fe_write(CharDriverState
*s
, const uint8_t *buf
, int len
)
140 return s
->chr_write(s
, buf
, len
);
143 int qemu_chr_fe_write_all(CharDriverState
*s
, const uint8_t *buf
, int len
)
148 while (offset
< len
) {
150 res
= s
->chr_write(s
, buf
+ offset
, len
- offset
);
151 if (res
== -1 && errno
== EAGAIN
) {
154 } while (res
== -1 && errno
== EAGAIN
);
170 int qemu_chr_fe_ioctl(CharDriverState
*s
, int cmd
, void *arg
)
174 return s
->chr_ioctl(s
, cmd
, arg
);
177 int qemu_chr_be_can_write(CharDriverState
*s
)
179 if (!s
->chr_can_read
)
181 return s
->chr_can_read(s
->handler_opaque
);
184 void qemu_chr_be_write(CharDriverState
*s
, uint8_t *buf
, int len
)
187 s
->chr_read(s
->handler_opaque
, buf
, len
);
191 int qemu_chr_fe_get_msgfd(CharDriverState
*s
)
193 return s
->get_msgfd
? s
->get_msgfd(s
) : -1;
196 int qemu_chr_add_client(CharDriverState
*s
, int fd
)
198 return s
->chr_add_client
? s
->chr_add_client(s
, fd
) : -1;
201 void qemu_chr_accept_input(CharDriverState
*s
)
203 if (s
->chr_accept_input
)
204 s
->chr_accept_input(s
);
208 void qemu_chr_fe_printf(CharDriverState
*s
, const char *fmt
, ...)
210 char buf
[READ_BUF_LEN
];
213 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
214 qemu_chr_fe_write(s
, (uint8_t *)buf
, strlen(buf
));
218 void qemu_chr_add_handlers(CharDriverState
*s
,
219 IOCanReadHandler
*fd_can_read
,
220 IOReadHandler
*fd_read
,
221 IOEventHandler
*fd_event
,
226 if (!opaque
&& !fd_can_read
&& !fd_read
&& !fd_event
) {
231 s
->chr_can_read
= fd_can_read
;
232 s
->chr_read
= fd_read
;
233 s
->chr_event
= fd_event
;
234 s
->handler_opaque
= opaque
;
235 if (s
->chr_update_read_handler
)
236 s
->chr_update_read_handler(s
);
238 if (!s
->explicit_fe_open
) {
239 qemu_chr_fe_set_open(s
, fe_open
);
242 /* We're connecting to an already opened device, so let's make sure we
243 also get the open event */
244 if (fe_open
&& s
->be_open
) {
245 qemu_chr_be_generic_open(s
);
249 static int null_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
254 static CharDriverState
*qemu_chr_open_null(void)
256 CharDriverState
*chr
;
258 chr
= g_malloc0(sizeof(CharDriverState
));
259 chr
->chr_write
= null_chr_write
;
263 /* MUX driver for serial I/O splitting */
265 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
266 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
268 IOCanReadHandler
*chr_can_read
[MAX_MUX
];
269 IOReadHandler
*chr_read
[MAX_MUX
];
270 IOEventHandler
*chr_event
[MAX_MUX
];
271 void *ext_opaque
[MAX_MUX
];
272 CharDriverState
*drv
;
277 /* Intermediate input buffer allows to catch escape sequences even if the
278 currently active device is not accepting any input - but only until it
280 unsigned char buffer
[MAX_MUX
][MUX_BUFFER_SIZE
];
285 int64_t timestamps_start
;
289 static int mux_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
291 MuxDriver
*d
= chr
->opaque
;
293 if (!d
->timestamps
) {
294 ret
= d
->drv
->chr_write(d
->drv
, buf
, len
);
299 for (i
= 0; i
< len
; i
++) {
305 ti
= qemu_get_clock_ms(rt_clock
);
306 if (d
->timestamps_start
== -1)
307 d
->timestamps_start
= ti
;
308 ti
-= d
->timestamps_start
;
310 snprintf(buf1
, sizeof(buf1
),
311 "[%02d:%02d:%02d.%03d] ",
316 d
->drv
->chr_write(d
->drv
, (uint8_t *)buf1
, strlen(buf1
));
319 ret
+= d
->drv
->chr_write(d
->drv
, buf
+i
, 1);
320 if (buf
[i
] == '\n') {
328 static const char * const mux_help
[] = {
329 "% h print this help\n\r",
330 "% x exit emulator\n\r",
331 "% s save disk data back to file (if -snapshot)\n\r",
332 "% t toggle console timestamps\n\r"
333 "% b send break (magic sysrq)\n\r",
334 "% c switch between console and monitor\n\r",
339 int term_escape_char
= 0x01; /* ctrl-a is used for escape */
340 static void mux_print_help(CharDriverState
*chr
)
343 char ebuf
[15] = "Escape-Char";
344 char cbuf
[50] = "\n\r";
346 if (term_escape_char
> 0 && term_escape_char
< 26) {
347 snprintf(cbuf
, sizeof(cbuf
), "\n\r");
348 snprintf(ebuf
, sizeof(ebuf
), "C-%c", term_escape_char
- 1 + 'a');
350 snprintf(cbuf
, sizeof(cbuf
),
351 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
354 chr
->chr_write(chr
, (uint8_t *)cbuf
, strlen(cbuf
));
355 for (i
= 0; mux_help
[i
] != NULL
; i
++) {
356 for (j
=0; mux_help
[i
][j
] != '\0'; j
++) {
357 if (mux_help
[i
][j
] == '%')
358 chr
->chr_write(chr
, (uint8_t *)ebuf
, strlen(ebuf
));
360 chr
->chr_write(chr
, (uint8_t *)&mux_help
[i
][j
], 1);
365 static void mux_chr_send_event(MuxDriver
*d
, int mux_nr
, int event
)
367 if (d
->chr_event
[mux_nr
])
368 d
->chr_event
[mux_nr
](d
->ext_opaque
[mux_nr
], event
);
371 static int mux_proc_byte(CharDriverState
*chr
, MuxDriver
*d
, int ch
)
373 if (d
->term_got_escape
) {
374 d
->term_got_escape
= 0;
375 if (ch
== term_escape_char
)
384 const char *term
= "QEMU: Terminated\n\r";
385 chr
->chr_write(chr
,(uint8_t *)term
,strlen(term
));
393 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
396 /* Switch to the next registered device */
397 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
399 if (d
->focus
>= d
->mux_cnt
)
401 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
404 d
->timestamps
= !d
->timestamps
;
405 d
->timestamps_start
= -1;
409 } else if (ch
== term_escape_char
) {
410 d
->term_got_escape
= 1;
418 static void mux_chr_accept_input(CharDriverState
*chr
)
420 MuxDriver
*d
= chr
->opaque
;
423 while (d
->prod
[m
] != d
->cons
[m
] &&
424 d
->chr_can_read
[m
] &&
425 d
->chr_can_read
[m
](d
->ext_opaque
[m
])) {
426 d
->chr_read
[m
](d
->ext_opaque
[m
],
427 &d
->buffer
[m
][d
->cons
[m
]++ & MUX_BUFFER_MASK
], 1);
431 static int mux_chr_can_read(void *opaque
)
433 CharDriverState
*chr
= opaque
;
434 MuxDriver
*d
= chr
->opaque
;
437 if ((d
->prod
[m
] - d
->cons
[m
]) < MUX_BUFFER_SIZE
)
439 if (d
->chr_can_read
[m
])
440 return d
->chr_can_read
[m
](d
->ext_opaque
[m
]);
444 static void mux_chr_read(void *opaque
, const uint8_t *buf
, int size
)
446 CharDriverState
*chr
= opaque
;
447 MuxDriver
*d
= chr
->opaque
;
451 mux_chr_accept_input (opaque
);
453 for(i
= 0; i
< size
; i
++)
454 if (mux_proc_byte(chr
, d
, buf
[i
])) {
455 if (d
->prod
[m
] == d
->cons
[m
] &&
456 d
->chr_can_read
[m
] &&
457 d
->chr_can_read
[m
](d
->ext_opaque
[m
]))
458 d
->chr_read
[m
](d
->ext_opaque
[m
], &buf
[i
], 1);
460 d
->buffer
[m
][d
->prod
[m
]++ & MUX_BUFFER_MASK
] = buf
[i
];
464 static void mux_chr_event(void *opaque
, int event
)
466 CharDriverState
*chr
= opaque
;
467 MuxDriver
*d
= chr
->opaque
;
470 /* Send the event to all registered listeners */
471 for (i
= 0; i
< d
->mux_cnt
; i
++)
472 mux_chr_send_event(d
, i
, event
);
475 static void mux_chr_update_read_handler(CharDriverState
*chr
)
477 MuxDriver
*d
= chr
->opaque
;
479 if (d
->mux_cnt
>= MAX_MUX
) {
480 fprintf(stderr
, "Cannot add I/O handlers, MUX array is full\n");
483 d
->ext_opaque
[d
->mux_cnt
] = chr
->handler_opaque
;
484 d
->chr_can_read
[d
->mux_cnt
] = chr
->chr_can_read
;
485 d
->chr_read
[d
->mux_cnt
] = chr
->chr_read
;
486 d
->chr_event
[d
->mux_cnt
] = chr
->chr_event
;
487 /* Fix up the real driver with mux routines */
488 if (d
->mux_cnt
== 0) {
489 qemu_chr_add_handlers(d
->drv
, mux_chr_can_read
, mux_chr_read
,
492 if (d
->focus
!= -1) {
493 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
495 d
->focus
= d
->mux_cnt
;
497 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
500 static CharDriverState
*qemu_chr_open_mux(CharDriverState
*drv
)
502 CharDriverState
*chr
;
505 chr
= g_malloc0(sizeof(CharDriverState
));
506 d
= g_malloc0(sizeof(MuxDriver
));
511 chr
->chr_write
= mux_chr_write
;
512 chr
->chr_update_read_handler
= mux_chr_update_read_handler
;
513 chr
->chr_accept_input
= mux_chr_accept_input
;
514 /* Frontend guest-open / -close notification is not support with muxes */
515 chr
->chr_set_fe_open
= NULL
;
517 /* Muxes are always open on creation */
518 qemu_chr_be_generic_open(chr
);
525 int send_all(int fd
, const void *buf
, int len1
)
531 ret
= send(fd
, buf
, len
, 0);
533 errno
= WSAGetLastError();
534 if (errno
!= WSAEWOULDBLOCK
) {
537 } else if (ret
== 0) {
549 int send_all(int fd
, const void *_buf
, int len1
)
552 const uint8_t *buf
= _buf
;
556 ret
= write(fd
, buf
, len
);
558 if (errno
!= EINTR
&& errno
!= EAGAIN
)
560 } else if (ret
== 0) {
570 int recv_all(int fd
, void *_buf
, int len1
, bool single_read
)
576 while ((len
> 0) && (ret
= read(fd
, buf
, len
)) != 0) {
578 if (errno
!= EINTR
&& errno
!= EAGAIN
) {
595 typedef struct IOWatchPoll
601 IOCanReadHandler
*fd_can_read
;
605 static IOWatchPoll
*io_watch_poll_from_source(GSource
*source
)
607 return container_of(source
, IOWatchPoll
, parent
);
610 static gboolean
io_watch_poll_prepare(GSource
*source
, gint
*timeout_
)
612 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
613 bool now_active
= iwp
->fd_can_read(iwp
->opaque
) > 0;
614 bool was_active
= g_source_get_context(iwp
->src
) != NULL
;
615 if (was_active
== now_active
) {
620 g_source_attach(iwp
->src
, NULL
);
622 g_source_remove(g_source_get_id(iwp
->src
));
627 static gboolean
io_watch_poll_check(GSource
*source
)
632 static gboolean
io_watch_poll_dispatch(GSource
*source
, GSourceFunc callback
,
638 static void io_watch_poll_finalize(GSource
*source
)
640 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
641 g_source_unref(iwp
->src
);
644 static GSourceFuncs io_watch_poll_funcs
= {
645 .prepare
= io_watch_poll_prepare
,
646 .check
= io_watch_poll_check
,
647 .dispatch
= io_watch_poll_dispatch
,
648 .finalize
= io_watch_poll_finalize
,
651 /* Can only be used for read */
652 static guint
io_add_watch_poll(GIOChannel
*channel
,
653 IOCanReadHandler
*fd_can_read
,
659 iwp
= (IOWatchPoll
*) g_source_new(&io_watch_poll_funcs
, sizeof(IOWatchPoll
));
660 iwp
->fd_can_read
= fd_can_read
;
661 iwp
->opaque
= user_data
;
662 iwp
->src
= g_io_create_watch(channel
, G_IO_IN
| G_IO_ERR
| G_IO_HUP
);
663 g_source_set_callback(iwp
->src
, (GSourceFunc
)fd_read
, user_data
, NULL
);
665 return g_source_attach(&iwp
->parent
, NULL
);
669 static GIOChannel
*io_channel_from_fd(int fd
)
677 chan
= g_io_channel_unix_new(fd
);
679 g_io_channel_set_encoding(chan
, NULL
, NULL
);
680 g_io_channel_set_buffered(chan
, FALSE
);
686 static GIOChannel
*io_channel_from_socket(int fd
)
695 chan
= g_io_channel_win32_new_socket(fd
);
697 chan
= g_io_channel_unix_new(fd
);
700 g_io_channel_set_encoding(chan
, NULL
, NULL
);
701 g_io_channel_set_buffered(chan
, FALSE
);
706 static int io_channel_send(GIOChannel
*fd
, const void *buf
, size_t len
)
712 while (offset
< len
) {
715 status
= g_io_channel_write_chars(fd
, buf
+ offset
, len
- offset
,
716 &bytes_written
, NULL
);
717 if (status
!= G_IO_STATUS_NORMAL
) {
718 if (status
== G_IO_STATUS_AGAIN
) {
719 /* If we've written any data, return a partial write. */
729 } else if (status
== G_IO_STATUS_EOF
) {
733 offset
+= bytes_written
;
741 typedef struct FDCharDriver
{
742 CharDriverState
*chr
;
743 GIOChannel
*fd_in
, *fd_out
;
746 QTAILQ_ENTRY(FDCharDriver
) node
;
749 static int fd_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
751 FDCharDriver
*s
= chr
->opaque
;
753 return io_channel_send(s
->fd_out
, buf
, len
);
756 static gboolean
fd_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
758 CharDriverState
*chr
= opaque
;
759 FDCharDriver
*s
= chr
->opaque
;
761 uint8_t buf
[READ_BUF_LEN
];
766 if (len
> s
->max_size
) {
773 status
= g_io_channel_read_chars(chan
, (gchar
*)buf
,
774 len
, &bytes_read
, NULL
);
775 if (status
== G_IO_STATUS_EOF
) {
776 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
779 if (status
== G_IO_STATUS_NORMAL
) {
780 qemu_chr_be_write(chr
, buf
, bytes_read
);
786 static int fd_chr_read_poll(void *opaque
)
788 CharDriverState
*chr
= opaque
;
789 FDCharDriver
*s
= chr
->opaque
;
791 s
->max_size
= qemu_chr_be_can_write(chr
);
795 static GSource
*fd_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
797 FDCharDriver
*s
= chr
->opaque
;
798 return g_io_create_watch(s
->fd_out
, cond
);
801 static void fd_chr_update_read_handler(CharDriverState
*chr
)
803 FDCharDriver
*s
= chr
->opaque
;
806 g_source_remove(s
->fd_in_tag
);
810 s
->fd_in_tag
= io_add_watch_poll(s
->fd_in
, fd_chr_read_poll
, fd_chr_read
, chr
);
814 static void fd_chr_close(struct CharDriverState
*chr
)
816 FDCharDriver
*s
= chr
->opaque
;
819 g_source_remove(s
->fd_in_tag
);
824 g_io_channel_unref(s
->fd_in
);
827 g_io_channel_unref(s
->fd_out
);
831 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
834 /* open a character device to a unix fd */
835 static CharDriverState
*qemu_chr_open_fd(int fd_in
, int fd_out
)
837 CharDriverState
*chr
;
840 chr
= g_malloc0(sizeof(CharDriverState
));
841 s
= g_malloc0(sizeof(FDCharDriver
));
842 s
->fd_in
= io_channel_from_fd(fd_in
);
843 s
->fd_out
= io_channel_from_fd(fd_out
);
844 fcntl(fd_out
, F_SETFL
, O_NONBLOCK
);
847 chr
->chr_add_watch
= fd_chr_add_watch
;
848 chr
->chr_write
= fd_chr_write
;
849 chr
->chr_update_read_handler
= fd_chr_update_read_handler
;
850 chr
->chr_close
= fd_chr_close
;
852 qemu_chr_be_generic_open(chr
);
857 static CharDriverState
*qemu_chr_open_pipe(ChardevHostdev
*opts
)
860 char filename_in
[256], filename_out
[256];
861 const char *filename
= opts
->device
;
863 if (filename
== NULL
) {
864 fprintf(stderr
, "chardev: pipe: no filename given\n");
868 snprintf(filename_in
, 256, "%s.in", filename
);
869 snprintf(filename_out
, 256, "%s.out", filename
);
870 TFR(fd_in
= qemu_open(filename_in
, O_RDWR
| O_BINARY
));
871 TFR(fd_out
= qemu_open(filename_out
, O_RDWR
| O_BINARY
));
872 if (fd_in
< 0 || fd_out
< 0) {
877 TFR(fd_in
= fd_out
= qemu_open(filename
, O_RDWR
| O_BINARY
));
882 return qemu_chr_open_fd(fd_in
, fd_out
);
885 /* init terminal so that we can grab keys */
886 static struct termios oldtty
;
887 static int old_fd0_flags
;
888 static bool stdio_allow_signal
;
890 static void term_exit(void)
892 tcsetattr (0, TCSANOW
, &oldtty
);
893 fcntl(0, F_SETFL
, old_fd0_flags
);
896 static void qemu_chr_set_echo_stdio(CharDriverState
*chr
, bool echo
)
902 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
903 |INLCR
|IGNCR
|ICRNL
|IXON
);
904 tty
.c_oflag
|= OPOST
;
905 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
906 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
911 /* if graphical mode, we allow Ctrl-C handling */
912 if (!stdio_allow_signal
)
913 tty
.c_lflag
&= ~ISIG
;
915 tcsetattr (0, TCSANOW
, &tty
);
918 static void qemu_chr_close_stdio(struct CharDriverState
*chr
)
924 static CharDriverState
*qemu_chr_open_stdio(ChardevStdio
*opts
)
926 CharDriverState
*chr
;
928 if (is_daemonized()) {
929 error_report("cannot use stdio with -daemonize");
932 old_fd0_flags
= fcntl(0, F_GETFL
);
933 tcgetattr (0, &oldtty
);
934 fcntl(0, F_SETFL
, O_NONBLOCK
);
937 chr
= qemu_chr_open_fd(0, 1);
938 chr
->chr_close
= qemu_chr_close_stdio
;
939 chr
->chr_set_echo
= qemu_chr_set_echo_stdio
;
940 stdio_allow_signal
= display_type
!= DT_NOGRAPHIC
;
941 if (opts
->has_signal
) {
942 stdio_allow_signal
= opts
->signal
;
944 qemu_chr_fe_set_echo(chr
, false);
950 /* Once Solaris has openpty(), this is going to be removed. */
951 static int openpty(int *amaster
, int *aslave
, char *name
,
952 struct termios
*termp
, struct winsize
*winp
)
955 int mfd
= -1, sfd
= -1;
957 *amaster
= *aslave
= -1;
959 mfd
= open("/dev/ptmx", O_RDWR
| O_NOCTTY
);
963 if (grantpt(mfd
) == -1 || unlockpt(mfd
) == -1)
966 if ((slave
= ptsname(mfd
)) == NULL
)
969 if ((sfd
= open(slave
, O_RDONLY
| O_NOCTTY
)) == -1)
972 if (ioctl(sfd
, I_PUSH
, "ptem") == -1 ||
973 (termp
!= NULL
&& tcgetattr(sfd
, termp
) < 0))
981 ioctl(sfd
, TIOCSWINSZ
, winp
);
992 static void cfmakeraw (struct termios
*termios_p
)
994 termios_p
->c_iflag
&=
995 ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
996 termios_p
->c_oflag
&= ~OPOST
;
997 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
998 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
999 termios_p
->c_cflag
|= CS8
;
1001 termios_p
->c_cc
[VMIN
] = 0;
1002 termios_p
->c_cc
[VTIME
] = 0;
1006 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1007 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1008 || defined(__GLIBC__)
1010 #define HAVE_CHARDEV_TTY 1
1021 static void pty_chr_update_read_handler(CharDriverState
*chr
);
1022 static void pty_chr_state(CharDriverState
*chr
, int connected
);
1024 static gboolean
pty_chr_timer(gpointer opaque
)
1026 struct CharDriverState
*chr
= opaque
;
1027 PtyCharDriver
*s
= chr
->opaque
;
1033 /* If we arrive here without polling being cleared due
1034 * read returning -EIO, then we are (re-)connected */
1035 pty_chr_state(chr
, 1);
1040 pty_chr_update_read_handler(chr
);
1046 static void pty_chr_rearm_timer(CharDriverState
*chr
, int ms
)
1048 PtyCharDriver
*s
= chr
->opaque
;
1051 g_source_remove(s
->timer_tag
);
1056 s
->timer_tag
= g_timeout_add_seconds(1, pty_chr_timer
, chr
);
1058 s
->timer_tag
= g_timeout_add(ms
, pty_chr_timer
, chr
);
1062 static int pty_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1064 PtyCharDriver
*s
= chr
->opaque
;
1066 if (!s
->connected
) {
1067 /* guest sends data, check for (re-)connect */
1068 pty_chr_update_read_handler(chr
);
1071 return io_channel_send(s
->fd
, buf
, len
);
1074 static GSource
*pty_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
1076 PtyCharDriver
*s
= chr
->opaque
;
1077 return g_io_create_watch(s
->fd
, cond
);
1080 static int pty_chr_read_poll(void *opaque
)
1082 CharDriverState
*chr
= opaque
;
1083 PtyCharDriver
*s
= chr
->opaque
;
1085 s
->read_bytes
= qemu_chr_be_can_write(chr
);
1086 return s
->read_bytes
;
1089 static gboolean
pty_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
1091 CharDriverState
*chr
= opaque
;
1092 PtyCharDriver
*s
= chr
->opaque
;
1094 uint8_t buf
[READ_BUF_LEN
];
1098 if (len
> s
->read_bytes
)
1099 len
= s
->read_bytes
;
1102 status
= g_io_channel_read_chars(s
->fd
, (gchar
*)buf
, len
, &size
, NULL
);
1103 if (status
!= G_IO_STATUS_NORMAL
) {
1104 pty_chr_state(chr
, 0);
1107 pty_chr_state(chr
, 1);
1108 qemu_chr_be_write(chr
, buf
, size
);
1113 static void pty_chr_update_read_handler(CharDriverState
*chr
)
1115 PtyCharDriver
*s
= chr
->opaque
;
1118 g_source_remove(s
->fd_tag
);
1121 s
->fd_tag
= io_add_watch_poll(s
->fd
, pty_chr_read_poll
, pty_chr_read
, chr
);
1124 * Short timeout here: just need wait long enougth that qemu makes
1125 * it through the poll loop once. When reconnected we want a
1126 * short timeout so we notice it almost instantly. Otherwise
1127 * read() gives us -EIO instantly, making pty_chr_state() reset the
1128 * timeout to the normal (much longer) poll interval before the
1131 pty_chr_rearm_timer(chr
, 10);
1134 static void pty_chr_state(CharDriverState
*chr
, int connected
)
1136 PtyCharDriver
*s
= chr
->opaque
;
1139 g_source_remove(s
->fd_tag
);
1143 /* (re-)connect poll interval for idle guests: once per second.
1144 * We check more frequently in case the guests sends data to
1145 * the virtual device linked to our pty. */
1146 pty_chr_rearm_timer(chr
, 1000);
1149 qemu_chr_be_generic_open(chr
);
1155 static void pty_chr_close(struct CharDriverState
*chr
)
1157 PtyCharDriver
*s
= chr
->opaque
;
1161 g_source_remove(s
->fd_tag
);
1163 fd
= g_io_channel_unix_get_fd(s
->fd
);
1164 g_io_channel_unref(s
->fd
);
1167 g_source_remove(s
->timer_tag
);
1170 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1173 static CharDriverState
*qemu_chr_open_pty(const char *id
,
1176 CharDriverState
*chr
;
1179 int master_fd
, slave_fd
;
1180 #if defined(__OpenBSD__) || defined(__DragonFly__)
1181 char pty_name
[PATH_MAX
];
1182 #define q_ptsname(x) pty_name
1184 char *pty_name
= NULL
;
1185 #define q_ptsname(x) ptsname(x)
1188 if (openpty(&master_fd
, &slave_fd
, pty_name
, NULL
, NULL
) < 0) {
1192 /* Set raw attributes on the pty. */
1193 tcgetattr(slave_fd
, &tty
);
1195 tcsetattr(slave_fd
, TCSAFLUSH
, &tty
);
1198 chr
= g_malloc0(sizeof(CharDriverState
));
1200 chr
->filename
= g_strdup_printf("pty:%s", q_ptsname(master_fd
));
1201 ret
->pty
= g_strdup(q_ptsname(master_fd
));
1202 ret
->has_pty
= true;
1204 fprintf(stderr
, "char device redirected to %s (label %s)\n",
1205 q_ptsname(master_fd
), id
);
1207 s
= g_malloc0(sizeof(PtyCharDriver
));
1209 chr
->chr_write
= pty_chr_write
;
1210 chr
->chr_update_read_handler
= pty_chr_update_read_handler
;
1211 chr
->chr_close
= pty_chr_close
;
1212 chr
->chr_add_watch
= pty_chr_add_watch
;
1214 s
->fd
= io_channel_from_fd(master_fd
);
1220 static void tty_serial_init(int fd
, int speed
,
1221 int parity
, int data_bits
, int stop_bits
)
1227 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1228 speed
, parity
, data_bits
, stop_bits
);
1230 tcgetattr (fd
, &tty
);
1232 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1233 speed
= speed
* 10 / 11;
1250 /* Non-Posix values follow. They may be unsupported on some systems. */
1252 check_speed(115200);
1254 check_speed(230400);
1257 check_speed(460800);
1260 check_speed(500000);
1263 check_speed(576000);
1266 check_speed(921600);
1269 check_speed(1000000);
1272 check_speed(1152000);
1275 check_speed(1500000);
1278 check_speed(2000000);
1281 check_speed(2500000);
1284 check_speed(3000000);
1287 check_speed(3500000);
1290 check_speed(4000000);
1295 cfsetispeed(&tty
, spd
);
1296 cfsetospeed(&tty
, spd
);
1298 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1299 |INLCR
|IGNCR
|ICRNL
|IXON
);
1300 tty
.c_oflag
|= OPOST
;
1301 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
|ISIG
);
1302 tty
.c_cflag
&= ~(CSIZE
|PARENB
|PARODD
|CRTSCTS
|CSTOPB
);
1323 tty
.c_cflag
|= PARENB
;
1326 tty
.c_cflag
|= PARENB
| PARODD
;
1330 tty
.c_cflag
|= CSTOPB
;
1332 tcsetattr (fd
, TCSANOW
, &tty
);
1335 static int tty_serial_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1337 FDCharDriver
*s
= chr
->opaque
;
1340 case CHR_IOCTL_SERIAL_SET_PARAMS
:
1342 QEMUSerialSetParams
*ssp
= arg
;
1343 tty_serial_init(g_io_channel_unix_get_fd(s
->fd_in
),
1344 ssp
->speed
, ssp
->parity
,
1345 ssp
->data_bits
, ssp
->stop_bits
);
1348 case CHR_IOCTL_SERIAL_SET_BREAK
:
1350 int enable
= *(int *)arg
;
1352 tcsendbreak(g_io_channel_unix_get_fd(s
->fd_in
), 1);
1356 case CHR_IOCTL_SERIAL_GET_TIOCM
:
1359 int *targ
= (int *)arg
;
1360 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMGET
, &sarg
);
1362 if (sarg
& TIOCM_CTS
)
1363 *targ
|= CHR_TIOCM_CTS
;
1364 if (sarg
& TIOCM_CAR
)
1365 *targ
|= CHR_TIOCM_CAR
;
1366 if (sarg
& TIOCM_DSR
)
1367 *targ
|= CHR_TIOCM_DSR
;
1368 if (sarg
& TIOCM_RI
)
1369 *targ
|= CHR_TIOCM_RI
;
1370 if (sarg
& TIOCM_DTR
)
1371 *targ
|= CHR_TIOCM_DTR
;
1372 if (sarg
& TIOCM_RTS
)
1373 *targ
|= CHR_TIOCM_RTS
;
1376 case CHR_IOCTL_SERIAL_SET_TIOCM
:
1378 int sarg
= *(int *)arg
;
1380 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMGET
, &targ
);
1381 targ
&= ~(CHR_TIOCM_CTS
| CHR_TIOCM_CAR
| CHR_TIOCM_DSR
1382 | CHR_TIOCM_RI
| CHR_TIOCM_DTR
| CHR_TIOCM_RTS
);
1383 if (sarg
& CHR_TIOCM_CTS
)
1385 if (sarg
& CHR_TIOCM_CAR
)
1387 if (sarg
& CHR_TIOCM_DSR
)
1389 if (sarg
& CHR_TIOCM_RI
)
1391 if (sarg
& CHR_TIOCM_DTR
)
1393 if (sarg
& CHR_TIOCM_RTS
)
1395 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMSET
, &targ
);
1404 static void qemu_chr_close_tty(CharDriverState
*chr
)
1406 FDCharDriver
*s
= chr
->opaque
;
1410 fd
= g_io_channel_unix_get_fd(s
->fd_in
);
1420 static CharDriverState
*qemu_chr_open_tty_fd(int fd
)
1422 CharDriverState
*chr
;
1424 tty_serial_init(fd
, 115200, 'N', 8, 1);
1425 chr
= qemu_chr_open_fd(fd
, fd
);
1426 chr
->chr_ioctl
= tty_serial_ioctl
;
1427 chr
->chr_close
= qemu_chr_close_tty
;
1430 #endif /* __linux__ || __sun__ */
1432 #if defined(__linux__)
1434 #define HAVE_CHARDEV_PARPORT 1
1439 } ParallelCharDriver
;
1441 static int pp_hw_mode(ParallelCharDriver
*s
, uint16_t mode
)
1443 if (s
->mode
!= mode
) {
1445 if (ioctl(s
->fd
, PPSETMODE
, &m
) < 0)
1452 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1454 ParallelCharDriver
*drv
= chr
->opaque
;
1459 case CHR_IOCTL_PP_READ_DATA
:
1460 if (ioctl(fd
, PPRDATA
, &b
) < 0)
1462 *(uint8_t *)arg
= b
;
1464 case CHR_IOCTL_PP_WRITE_DATA
:
1465 b
= *(uint8_t *)arg
;
1466 if (ioctl(fd
, PPWDATA
, &b
) < 0)
1469 case CHR_IOCTL_PP_READ_CONTROL
:
1470 if (ioctl(fd
, PPRCONTROL
, &b
) < 0)
1472 /* Linux gives only the lowest bits, and no way to know data
1473 direction! For better compatibility set the fixed upper
1475 *(uint8_t *)arg
= b
| 0xc0;
1477 case CHR_IOCTL_PP_WRITE_CONTROL
:
1478 b
= *(uint8_t *)arg
;
1479 if (ioctl(fd
, PPWCONTROL
, &b
) < 0)
1482 case CHR_IOCTL_PP_READ_STATUS
:
1483 if (ioctl(fd
, PPRSTATUS
, &b
) < 0)
1485 *(uint8_t *)arg
= b
;
1487 case CHR_IOCTL_PP_DATA_DIR
:
1488 if (ioctl(fd
, PPDATADIR
, (int *)arg
) < 0)
1491 case CHR_IOCTL_PP_EPP_READ_ADDR
:
1492 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1493 struct ParallelIOArg
*parg
= arg
;
1494 int n
= read(fd
, parg
->buffer
, parg
->count
);
1495 if (n
!= parg
->count
) {
1500 case CHR_IOCTL_PP_EPP_READ
:
1501 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1502 struct ParallelIOArg
*parg
= arg
;
1503 int n
= read(fd
, parg
->buffer
, parg
->count
);
1504 if (n
!= parg
->count
) {
1509 case CHR_IOCTL_PP_EPP_WRITE_ADDR
:
1510 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1511 struct ParallelIOArg
*parg
= arg
;
1512 int n
= write(fd
, parg
->buffer
, parg
->count
);
1513 if (n
!= parg
->count
) {
1518 case CHR_IOCTL_PP_EPP_WRITE
:
1519 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1520 struct ParallelIOArg
*parg
= arg
;
1521 int n
= write(fd
, parg
->buffer
, parg
->count
);
1522 if (n
!= parg
->count
) {
1533 static void pp_close(CharDriverState
*chr
)
1535 ParallelCharDriver
*drv
= chr
->opaque
;
1538 pp_hw_mode(drv
, IEEE1284_MODE_COMPAT
);
1539 ioctl(fd
, PPRELEASE
);
1542 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1545 static CharDriverState
*qemu_chr_open_pp_fd(int fd
)
1547 CharDriverState
*chr
;
1548 ParallelCharDriver
*drv
;
1550 if (ioctl(fd
, PPCLAIM
) < 0) {
1555 drv
= g_malloc0(sizeof(ParallelCharDriver
));
1557 drv
->mode
= IEEE1284_MODE_COMPAT
;
1559 chr
= g_malloc0(sizeof(CharDriverState
));
1560 chr
->chr_write
= null_chr_write
;
1561 chr
->chr_ioctl
= pp_ioctl
;
1562 chr
->chr_close
= pp_close
;
1565 qemu_chr_be_generic_open(chr
);
1569 #endif /* __linux__ */
1571 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1573 #define HAVE_CHARDEV_PARPORT 1
1575 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1577 int fd
= (int)(intptr_t)chr
->opaque
;
1581 case CHR_IOCTL_PP_READ_DATA
:
1582 if (ioctl(fd
, PPIGDATA
, &b
) < 0)
1584 *(uint8_t *)arg
= b
;
1586 case CHR_IOCTL_PP_WRITE_DATA
:
1587 b
= *(uint8_t *)arg
;
1588 if (ioctl(fd
, PPISDATA
, &b
) < 0)
1591 case CHR_IOCTL_PP_READ_CONTROL
:
1592 if (ioctl(fd
, PPIGCTRL
, &b
) < 0)
1594 *(uint8_t *)arg
= b
;
1596 case CHR_IOCTL_PP_WRITE_CONTROL
:
1597 b
= *(uint8_t *)arg
;
1598 if (ioctl(fd
, PPISCTRL
, &b
) < 0)
1601 case CHR_IOCTL_PP_READ_STATUS
:
1602 if (ioctl(fd
, PPIGSTATUS
, &b
) < 0)
1604 *(uint8_t *)arg
= b
;
1612 static CharDriverState
*qemu_chr_open_pp_fd(int fd
)
1614 CharDriverState
*chr
;
1616 chr
= g_malloc0(sizeof(CharDriverState
));
1617 chr
->opaque
= (void *)(intptr_t)fd
;
1618 chr
->chr_write
= null_chr_write
;
1619 chr
->chr_ioctl
= pp_ioctl
;
1628 HANDLE hcom
, hrecv
, hsend
;
1629 OVERLAPPED orecv
, osend
;
1636 HANDLE hInputReadyEvent
;
1637 HANDLE hInputDoneEvent
;
1638 HANDLE hInputThread
;
1639 uint8_t win_stdio_buf
;
1640 } WinStdioCharState
;
1642 #define NSENDBUF 2048
1643 #define NRECVBUF 2048
1644 #define MAXCONNECT 1
1645 #define NTIMEOUT 5000
1647 static int win_chr_poll(void *opaque
);
1648 static int win_chr_pipe_poll(void *opaque
);
1650 static void win_chr_close(CharDriverState
*chr
)
1652 WinCharState
*s
= chr
->opaque
;
1655 CloseHandle(s
->hsend
);
1659 CloseHandle(s
->hrecv
);
1663 CloseHandle(s
->hcom
);
1667 qemu_del_polling_cb(win_chr_pipe_poll
, chr
);
1669 qemu_del_polling_cb(win_chr_poll
, chr
);
1671 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1674 static int win_chr_init(CharDriverState
*chr
, const char *filename
)
1676 WinCharState
*s
= chr
->opaque
;
1678 COMMTIMEOUTS cto
= { 0, 0, 0, 0, 0};
1683 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1685 fprintf(stderr
, "Failed CreateEvent\n");
1688 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1690 fprintf(stderr
, "Failed CreateEvent\n");
1694 s
->hcom
= CreateFile(filename
, GENERIC_READ
|GENERIC_WRITE
, 0, NULL
,
1695 OPEN_EXISTING
, FILE_FLAG_OVERLAPPED
, 0);
1696 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1697 fprintf(stderr
, "Failed CreateFile (%lu)\n", GetLastError());
1702 if (!SetupComm(s
->hcom
, NRECVBUF
, NSENDBUF
)) {
1703 fprintf(stderr
, "Failed SetupComm\n");
1707 ZeroMemory(&comcfg
, sizeof(COMMCONFIG
));
1708 size
= sizeof(COMMCONFIG
);
1709 GetDefaultCommConfig(filename
, &comcfg
, &size
);
1710 comcfg
.dcb
.DCBlength
= sizeof(DCB
);
1711 CommConfigDialog(filename
, NULL
, &comcfg
);
1713 if (!SetCommState(s
->hcom
, &comcfg
.dcb
)) {
1714 fprintf(stderr
, "Failed SetCommState\n");
1718 if (!SetCommMask(s
->hcom
, EV_ERR
)) {
1719 fprintf(stderr
, "Failed SetCommMask\n");
1723 cto
.ReadIntervalTimeout
= MAXDWORD
;
1724 if (!SetCommTimeouts(s
->hcom
, &cto
)) {
1725 fprintf(stderr
, "Failed SetCommTimeouts\n");
1729 if (!ClearCommError(s
->hcom
, &err
, &comstat
)) {
1730 fprintf(stderr
, "Failed ClearCommError\n");
1733 qemu_add_polling_cb(win_chr_poll
, chr
);
1741 static int win_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len1
)
1743 WinCharState
*s
= chr
->opaque
;
1744 DWORD len
, ret
, size
, err
;
1747 ZeroMemory(&s
->osend
, sizeof(s
->osend
));
1748 s
->osend
.hEvent
= s
->hsend
;
1751 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, &s
->osend
);
1753 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, NULL
);
1755 err
= GetLastError();
1756 if (err
== ERROR_IO_PENDING
) {
1757 ret
= GetOverlappedResult(s
->hcom
, &s
->osend
, &size
, TRUE
);
1775 static int win_chr_read_poll(CharDriverState
*chr
)
1777 WinCharState
*s
= chr
->opaque
;
1779 s
->max_size
= qemu_chr_be_can_write(chr
);
1783 static void win_chr_readfile(CharDriverState
*chr
)
1785 WinCharState
*s
= chr
->opaque
;
1787 uint8_t buf
[READ_BUF_LEN
];
1790 ZeroMemory(&s
->orecv
, sizeof(s
->orecv
));
1791 s
->orecv
.hEvent
= s
->hrecv
;
1792 ret
= ReadFile(s
->hcom
, buf
, s
->len
, &size
, &s
->orecv
);
1794 err
= GetLastError();
1795 if (err
== ERROR_IO_PENDING
) {
1796 ret
= GetOverlappedResult(s
->hcom
, &s
->orecv
, &size
, TRUE
);
1801 qemu_chr_be_write(chr
, buf
, size
);
1805 static void win_chr_read(CharDriverState
*chr
)
1807 WinCharState
*s
= chr
->opaque
;
1809 if (s
->len
> s
->max_size
)
1810 s
->len
= s
->max_size
;
1814 win_chr_readfile(chr
);
1817 static int win_chr_poll(void *opaque
)
1819 CharDriverState
*chr
= opaque
;
1820 WinCharState
*s
= chr
->opaque
;
1824 ClearCommError(s
->hcom
, &comerr
, &status
);
1825 if (status
.cbInQue
> 0) {
1826 s
->len
= status
.cbInQue
;
1827 win_chr_read_poll(chr
);
1834 static CharDriverState
*qemu_chr_open_win_path(const char *filename
)
1836 CharDriverState
*chr
;
1839 chr
= g_malloc0(sizeof(CharDriverState
));
1840 s
= g_malloc0(sizeof(WinCharState
));
1842 chr
->chr_write
= win_chr_write
;
1843 chr
->chr_close
= win_chr_close
;
1845 if (win_chr_init(chr
, filename
) < 0) {
1850 qemu_chr_be_generic_open(chr
);
1854 static int win_chr_pipe_poll(void *opaque
)
1856 CharDriverState
*chr
= opaque
;
1857 WinCharState
*s
= chr
->opaque
;
1860 PeekNamedPipe(s
->hcom
, NULL
, 0, NULL
, &size
, NULL
);
1863 win_chr_read_poll(chr
);
1870 static int win_chr_pipe_init(CharDriverState
*chr
, const char *filename
)
1872 WinCharState
*s
= chr
->opaque
;
1880 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1882 fprintf(stderr
, "Failed CreateEvent\n");
1885 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1887 fprintf(stderr
, "Failed CreateEvent\n");
1891 snprintf(openname
, sizeof(openname
), "\\\\.\\pipe\\%s", filename
);
1892 s
->hcom
= CreateNamedPipe(openname
, PIPE_ACCESS_DUPLEX
| FILE_FLAG_OVERLAPPED
,
1893 PIPE_TYPE_BYTE
| PIPE_READMODE_BYTE
|
1895 MAXCONNECT
, NSENDBUF
, NRECVBUF
, NTIMEOUT
, NULL
);
1896 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1897 fprintf(stderr
, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1902 ZeroMemory(&ov
, sizeof(ov
));
1903 ov
.hEvent
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1904 ret
= ConnectNamedPipe(s
->hcom
, &ov
);
1906 fprintf(stderr
, "Failed ConnectNamedPipe\n");
1910 ret
= GetOverlappedResult(s
->hcom
, &ov
, &size
, TRUE
);
1912 fprintf(stderr
, "Failed GetOverlappedResult\n");
1914 CloseHandle(ov
.hEvent
);
1921 CloseHandle(ov
.hEvent
);
1924 qemu_add_polling_cb(win_chr_pipe_poll
, chr
);
1933 static CharDriverState
*qemu_chr_open_pipe(ChardevHostdev
*opts
)
1935 const char *filename
= opts
->device
;
1936 CharDriverState
*chr
;
1939 chr
= g_malloc0(sizeof(CharDriverState
));
1940 s
= g_malloc0(sizeof(WinCharState
));
1942 chr
->chr_write
= win_chr_write
;
1943 chr
->chr_close
= win_chr_close
;
1945 if (win_chr_pipe_init(chr
, filename
) < 0) {
1950 qemu_chr_be_generic_open(chr
);
1954 static CharDriverState
*qemu_chr_open_win_file(HANDLE fd_out
)
1956 CharDriverState
*chr
;
1959 chr
= g_malloc0(sizeof(CharDriverState
));
1960 s
= g_malloc0(sizeof(WinCharState
));
1963 chr
->chr_write
= win_chr_write
;
1964 qemu_chr_be_generic_open(chr
);
1968 static CharDriverState
*qemu_chr_open_win_con(void)
1970 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE
));
1973 static int win_stdio_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1975 HANDLE hStdOut
= GetStdHandle(STD_OUTPUT_HANDLE
);
1982 if (!WriteFile(hStdOut
, buf
, len1
, &dwSize
, NULL
)) {
1992 static void win_stdio_wait_func(void *opaque
)
1994 CharDriverState
*chr
= opaque
;
1995 WinStdioCharState
*stdio
= chr
->opaque
;
1996 INPUT_RECORD buf
[4];
2001 ret
= ReadConsoleInput(stdio
->hStdIn
, buf
, sizeof(buf
) / sizeof(*buf
),
2005 /* Avoid error storm */
2006 qemu_del_wait_object(stdio
->hStdIn
, NULL
, NULL
);
2010 for (i
= 0; i
< dwSize
; i
++) {
2011 KEY_EVENT_RECORD
*kev
= &buf
[i
].Event
.KeyEvent
;
2013 if (buf
[i
].EventType
== KEY_EVENT
&& kev
->bKeyDown
) {
2015 if (kev
->uChar
.AsciiChar
!= 0) {
2016 for (j
= 0; j
< kev
->wRepeatCount
; j
++) {
2017 if (qemu_chr_be_can_write(chr
)) {
2018 uint8_t c
= kev
->uChar
.AsciiChar
;
2019 qemu_chr_be_write(chr
, &c
, 1);
2027 static DWORD WINAPI
win_stdio_thread(LPVOID param
)
2029 CharDriverState
*chr
= param
;
2030 WinStdioCharState
*stdio
= chr
->opaque
;
2036 /* Wait for one byte */
2037 ret
= ReadFile(stdio
->hStdIn
, &stdio
->win_stdio_buf
, 1, &dwSize
, NULL
);
2039 /* Exit in case of error, continue if nothing read */
2047 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2048 if (stdio
->win_stdio_buf
== '\r') {
2052 /* Signal the main thread and wait until the byte was eaten */
2053 if (!SetEvent(stdio
->hInputReadyEvent
)) {
2056 if (WaitForSingleObject(stdio
->hInputDoneEvent
, INFINITE
)
2062 qemu_del_wait_object(stdio
->hInputReadyEvent
, NULL
, NULL
);
2066 static void win_stdio_thread_wait_func(void *opaque
)
2068 CharDriverState
*chr
= opaque
;
2069 WinStdioCharState
*stdio
= chr
->opaque
;
2071 if (qemu_chr_be_can_write(chr
)) {
2072 qemu_chr_be_write(chr
, &stdio
->win_stdio_buf
, 1);
2075 SetEvent(stdio
->hInputDoneEvent
);
2078 static void qemu_chr_set_echo_win_stdio(CharDriverState
*chr
, bool echo
)
2080 WinStdioCharState
*stdio
= chr
->opaque
;
2083 GetConsoleMode(stdio
->hStdIn
, &dwMode
);
2086 SetConsoleMode(stdio
->hStdIn
, dwMode
| ENABLE_ECHO_INPUT
);
2088 SetConsoleMode(stdio
->hStdIn
, dwMode
& ~ENABLE_ECHO_INPUT
);
2092 static void win_stdio_close(CharDriverState
*chr
)
2094 WinStdioCharState
*stdio
= chr
->opaque
;
2096 if (stdio
->hInputReadyEvent
!= INVALID_HANDLE_VALUE
) {
2097 CloseHandle(stdio
->hInputReadyEvent
);
2099 if (stdio
->hInputDoneEvent
!= INVALID_HANDLE_VALUE
) {
2100 CloseHandle(stdio
->hInputDoneEvent
);
2102 if (stdio
->hInputThread
!= INVALID_HANDLE_VALUE
) {
2103 TerminateThread(stdio
->hInputThread
, 0);
2106 g_free(chr
->opaque
);
2110 static CharDriverState
*qemu_chr_open_stdio(ChardevStdio
*opts
)
2112 CharDriverState
*chr
;
2113 WinStdioCharState
*stdio
;
2117 chr
= g_malloc0(sizeof(CharDriverState
));
2118 stdio
= g_malloc0(sizeof(WinStdioCharState
));
2120 stdio
->hStdIn
= GetStdHandle(STD_INPUT_HANDLE
);
2121 if (stdio
->hStdIn
== INVALID_HANDLE_VALUE
) {
2122 fprintf(stderr
, "cannot open stdio: invalid handle\n");
2126 is_console
= GetConsoleMode(stdio
->hStdIn
, &dwMode
) != 0;
2128 chr
->opaque
= stdio
;
2129 chr
->chr_write
= win_stdio_write
;
2130 chr
->chr_close
= win_stdio_close
;
2133 if (qemu_add_wait_object(stdio
->hStdIn
,
2134 win_stdio_wait_func
, chr
)) {
2135 fprintf(stderr
, "qemu_add_wait_object: failed\n");
2140 stdio
->hInputReadyEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
2141 stdio
->hInputDoneEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
2142 stdio
->hInputThread
= CreateThread(NULL
, 0, win_stdio_thread
,
2145 if (stdio
->hInputThread
== INVALID_HANDLE_VALUE
2146 || stdio
->hInputReadyEvent
== INVALID_HANDLE_VALUE
2147 || stdio
->hInputDoneEvent
== INVALID_HANDLE_VALUE
) {
2148 fprintf(stderr
, "cannot create stdio thread or event\n");
2151 if (qemu_add_wait_object(stdio
->hInputReadyEvent
,
2152 win_stdio_thread_wait_func
, chr
)) {
2153 fprintf(stderr
, "qemu_add_wait_object: failed\n");
2157 dwMode
|= ENABLE_LINE_INPUT
;
2160 /* set the terminal in raw mode */
2161 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2162 dwMode
|= ENABLE_PROCESSED_INPUT
;
2165 SetConsoleMode(stdio
->hStdIn
, dwMode
);
2167 chr
->chr_set_echo
= qemu_chr_set_echo_win_stdio
;
2168 qemu_chr_fe_set_echo(chr
, false);
2172 #endif /* !_WIN32 */
2175 /***********************************************************/
2176 /* UDP Net console */
2182 uint8_t buf
[READ_BUF_LEN
];
2188 static int udp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2190 NetCharDriver
*s
= chr
->opaque
;
2191 gsize bytes_written
;
2194 status
= g_io_channel_write_chars(s
->chan
, (const gchar
*)buf
, len
, &bytes_written
, NULL
);
2195 if (status
== G_IO_STATUS_EOF
) {
2197 } else if (status
!= G_IO_STATUS_NORMAL
) {
2201 return bytes_written
;
2204 static int udp_chr_read_poll(void *opaque
)
2206 CharDriverState
*chr
= opaque
;
2207 NetCharDriver
*s
= chr
->opaque
;
2209 s
->max_size
= qemu_chr_be_can_write(chr
);
2211 /* If there were any stray characters in the queue process them
2214 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2215 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2217 s
->max_size
= qemu_chr_be_can_write(chr
);
2222 static gboolean
udp_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
2224 CharDriverState
*chr
= opaque
;
2225 NetCharDriver
*s
= chr
->opaque
;
2226 gsize bytes_read
= 0;
2229 if (s
->max_size
== 0)
2231 status
= g_io_channel_read_chars(s
->chan
, (gchar
*)s
->buf
, sizeof(s
->buf
),
2233 s
->bufcnt
= bytes_read
;
2234 s
->bufptr
= s
->bufcnt
;
2235 if (status
!= G_IO_STATUS_NORMAL
) {
2240 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2241 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2243 s
->max_size
= qemu_chr_be_can_write(chr
);
2249 static void udp_chr_update_read_handler(CharDriverState
*chr
)
2251 NetCharDriver
*s
= chr
->opaque
;
2254 g_source_remove(s
->tag
);
2259 s
->tag
= io_add_watch_poll(s
->chan
, udp_chr_read_poll
, udp_chr_read
, chr
);
2263 static void udp_chr_close(CharDriverState
*chr
)
2265 NetCharDriver
*s
= chr
->opaque
;
2267 g_source_remove(s
->tag
);
2270 g_io_channel_unref(s
->chan
);
2274 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2277 static CharDriverState
*qemu_chr_open_udp_fd(int fd
)
2279 CharDriverState
*chr
= NULL
;
2280 NetCharDriver
*s
= NULL
;
2282 chr
= g_malloc0(sizeof(CharDriverState
));
2283 s
= g_malloc0(sizeof(NetCharDriver
));
2286 s
->chan
= io_channel_from_socket(s
->fd
);
2290 chr
->chr_write
= udp_chr_write
;
2291 chr
->chr_update_read_handler
= udp_chr_update_read_handler
;
2292 chr
->chr_close
= udp_chr_close
;
2296 static CharDriverState
*qemu_chr_open_udp(QemuOpts
*opts
)
2298 Error
*local_err
= NULL
;
2301 fd
= inet_dgram_opts(opts
, &local_err
);
2305 return qemu_chr_open_udp_fd(fd
);
2308 /***********************************************************/
2309 /* TCP Net console */
2313 GIOChannel
*chan
, *listen_chan
;
2314 guint tag
, listen_tag
;
2324 static gboolean
tcp_chr_accept(GIOChannel
*chan
, GIOCondition cond
, void *opaque
);
2326 static int tcp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2328 TCPCharDriver
*s
= chr
->opaque
;
2330 return io_channel_send(s
->chan
, buf
, len
);
2332 /* XXX: indicate an error ? */
2337 static int tcp_chr_read_poll(void *opaque
)
2339 CharDriverState
*chr
= opaque
;
2340 TCPCharDriver
*s
= chr
->opaque
;
2343 s
->max_size
= qemu_chr_be_can_write(chr
);
2348 #define IAC_BREAK 243
2349 static void tcp_chr_process_IAC_bytes(CharDriverState
*chr
,
2351 uint8_t *buf
, int *size
)
2353 /* Handle any telnet client's basic IAC options to satisfy char by
2354 * char mode with no echo. All IAC options will be removed from
2355 * the buf and the do_telnetopt variable will be used to track the
2356 * state of the width of the IAC information.
2358 * IAC commands come in sets of 3 bytes with the exception of the
2359 * "IAC BREAK" command and the double IAC.
2365 for (i
= 0; i
< *size
; i
++) {
2366 if (s
->do_telnetopt
> 1) {
2367 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
2368 /* Double IAC means send an IAC */
2372 s
->do_telnetopt
= 1;
2374 if ((unsigned char)buf
[i
] == IAC_BREAK
&& s
->do_telnetopt
== 2) {
2375 /* Handle IAC break commands by sending a serial break */
2376 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
2381 if (s
->do_telnetopt
>= 4) {
2382 s
->do_telnetopt
= 1;
2385 if ((unsigned char)buf
[i
] == IAC
) {
2386 s
->do_telnetopt
= 2;
2397 static int tcp_get_msgfd(CharDriverState
*chr
)
2399 TCPCharDriver
*s
= chr
->opaque
;
2406 static void unix_process_msgfd(CharDriverState
*chr
, struct msghdr
*msg
)
2408 TCPCharDriver
*s
= chr
->opaque
;
2409 struct cmsghdr
*cmsg
;
2411 for (cmsg
= CMSG_FIRSTHDR(msg
); cmsg
; cmsg
= CMSG_NXTHDR(msg
, cmsg
)) {
2414 if (cmsg
->cmsg_len
!= CMSG_LEN(sizeof(int)) ||
2415 cmsg
->cmsg_level
!= SOL_SOCKET
||
2416 cmsg
->cmsg_type
!= SCM_RIGHTS
)
2419 fd
= *((int *)CMSG_DATA(cmsg
));
2423 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
2426 #ifndef MSG_CMSG_CLOEXEC
2427 qemu_set_cloexec(fd
);
2435 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2437 TCPCharDriver
*s
= chr
->opaque
;
2438 struct msghdr msg
= { NULL
, };
2439 struct iovec iov
[1];
2441 struct cmsghdr cmsg
;
2442 char control
[CMSG_SPACE(sizeof(int))];
2447 iov
[0].iov_base
= buf
;
2448 iov
[0].iov_len
= len
;
2452 msg
.msg_control
= &msg_control
;
2453 msg
.msg_controllen
= sizeof(msg_control
);
2455 #ifdef MSG_CMSG_CLOEXEC
2456 flags
|= MSG_CMSG_CLOEXEC
;
2458 ret
= recvmsg(s
->fd
, &msg
, flags
);
2459 if (ret
> 0 && s
->is_unix
) {
2460 unix_process_msgfd(chr
, &msg
);
2466 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2468 TCPCharDriver
*s
= chr
->opaque
;
2469 return qemu_recv(s
->fd
, buf
, len
, 0);
2473 static GSource
*tcp_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
2475 TCPCharDriver
*s
= chr
->opaque
;
2476 return g_io_create_watch(s
->chan
, cond
);
2479 static gboolean
tcp_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
2481 CharDriverState
*chr
= opaque
;
2482 TCPCharDriver
*s
= chr
->opaque
;
2483 uint8_t buf
[READ_BUF_LEN
];
2486 if (!s
->connected
|| s
->max_size
<= 0) {
2490 if (len
> s
->max_size
)
2492 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
2494 /* connection closed */
2496 if (s
->listen_chan
) {
2497 s
->listen_tag
= g_io_add_watch(s
->listen_chan
, G_IO_IN
, tcp_chr_accept
, chr
);
2499 g_source_remove(s
->tag
);
2501 g_io_channel_unref(s
->chan
);
2505 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2506 } else if (size
> 0) {
2507 if (s
->do_telnetopt
)
2508 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
2510 qemu_chr_be_write(chr
, buf
, size
);
2517 CharDriverState
*qemu_chr_open_eventfd(int eventfd
)
2519 return qemu_chr_open_fd(eventfd
, eventfd
);
2523 static void tcp_chr_connect(void *opaque
)
2525 CharDriverState
*chr
= opaque
;
2526 TCPCharDriver
*s
= chr
->opaque
;
2530 s
->tag
= io_add_watch_poll(s
->chan
, tcp_chr_read_poll
, tcp_chr_read
, chr
);
2532 qemu_chr_be_generic_open(chr
);
2535 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2536 static void tcp_chr_telnet_init(int fd
)
2539 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2540 IACSET(buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2541 send(fd
, (char *)buf
, 3, 0);
2542 IACSET(buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2543 send(fd
, (char *)buf
, 3, 0);
2544 IACSET(buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2545 send(fd
, (char *)buf
, 3, 0);
2546 IACSET(buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2547 send(fd
, (char *)buf
, 3, 0);
2550 static int tcp_chr_add_client(CharDriverState
*chr
, int fd
)
2552 TCPCharDriver
*s
= chr
->opaque
;
2556 qemu_set_nonblock(fd
);
2558 socket_set_nodelay(fd
);
2560 s
->chan
= io_channel_from_socket(fd
);
2561 g_source_remove(s
->listen_tag
);
2563 tcp_chr_connect(chr
);
2568 static gboolean
tcp_chr_accept(GIOChannel
*channel
, GIOCondition cond
, void *opaque
)
2570 CharDriverState
*chr
= opaque
;
2571 TCPCharDriver
*s
= chr
->opaque
;
2572 struct sockaddr_in saddr
;
2574 struct sockaddr_un uaddr
;
2576 struct sockaddr
*addr
;
2583 len
= sizeof(uaddr
);
2584 addr
= (struct sockaddr
*)&uaddr
;
2588 len
= sizeof(saddr
);
2589 addr
= (struct sockaddr
*)&saddr
;
2591 fd
= qemu_accept(s
->listen_fd
, addr
, &len
);
2592 if (fd
< 0 && errno
!= EINTR
) {
2594 } else if (fd
>= 0) {
2595 if (s
->do_telnetopt
)
2596 tcp_chr_telnet_init(fd
);
2600 if (tcp_chr_add_client(chr
, fd
) < 0)
2606 static void tcp_chr_close(CharDriverState
*chr
)
2608 TCPCharDriver
*s
= chr
->opaque
;
2611 g_source_remove(s
->tag
);
2614 g_io_channel_unref(s
->chan
);
2618 if (s
->listen_fd
>= 0) {
2619 if (s
->listen_tag
) {
2620 g_source_remove(s
->listen_tag
);
2622 if (s
->listen_chan
) {
2623 g_io_channel_unref(s
->listen_chan
);
2625 closesocket(s
->listen_fd
);
2628 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2631 static CharDriverState
*qemu_chr_open_socket_fd(int fd
, bool do_nodelay
,
2632 bool is_listen
, bool is_telnet
,
2633 bool is_waitconnect
,
2636 CharDriverState
*chr
= NULL
;
2637 TCPCharDriver
*s
= NULL
;
2638 char host
[NI_MAXHOST
], serv
[NI_MAXSERV
];
2639 const char *left
= "", *right
= "";
2640 struct sockaddr_storage ss
;
2641 socklen_t ss_len
= sizeof(ss
);
2643 memset(&ss
, 0, ss_len
);
2644 if (getsockname(fd
, (struct sockaddr
*) &ss
, &ss_len
) != 0) {
2645 error_setg(errp
, "getsockname: %s", strerror(errno
));
2649 chr
= g_malloc0(sizeof(CharDriverState
));
2650 s
= g_malloc0(sizeof(TCPCharDriver
));
2657 chr
->filename
= g_malloc(256);
2658 switch (ss
.ss_family
) {
2662 snprintf(chr
->filename
, 256, "unix:%s%s",
2663 ((struct sockaddr_un
*)(&ss
))->sun_path
,
2664 is_listen
? ",server" : "");
2672 s
->do_nodelay
= do_nodelay
;
2673 getnameinfo((struct sockaddr
*) &ss
, ss_len
, host
, sizeof(host
),
2674 serv
, sizeof(serv
), NI_NUMERICHOST
| NI_NUMERICSERV
);
2675 snprintf(chr
->filename
, 256, "%s:%s%s%s:%s%s",
2676 is_telnet
? "telnet" : "tcp",
2677 left
, host
, right
, serv
,
2678 is_listen
? ",server" : "");
2683 chr
->chr_write
= tcp_chr_write
;
2684 chr
->chr_close
= tcp_chr_close
;
2685 chr
->get_msgfd
= tcp_get_msgfd
;
2686 chr
->chr_add_client
= tcp_chr_add_client
;
2687 chr
->chr_add_watch
= tcp_chr_add_watch
;
2691 s
->listen_chan
= io_channel_from_socket(s
->listen_fd
);
2692 s
->listen_tag
= g_io_add_watch(s
->listen_chan
, G_IO_IN
, tcp_chr_accept
, chr
);
2694 s
->do_telnetopt
= 1;
2699 socket_set_nodelay(fd
);
2700 s
->chan
= io_channel_from_socket(s
->fd
);
2701 tcp_chr_connect(chr
);
2704 if (is_listen
&& is_waitconnect
) {
2705 printf("QEMU waiting for connection on: %s\n",
2707 tcp_chr_accept(s
->listen_chan
, G_IO_IN
, chr
);
2708 qemu_set_nonblock(s
->listen_fd
);
2713 static CharDriverState
*qemu_chr_open_socket(QemuOpts
*opts
)
2715 CharDriverState
*chr
= NULL
;
2716 Error
*local_err
= NULL
;
2724 is_listen
= qemu_opt_get_bool(opts
, "server", 0);
2725 is_waitconnect
= qemu_opt_get_bool(opts
, "wait", 1);
2726 is_telnet
= qemu_opt_get_bool(opts
, "telnet", 0);
2727 do_nodelay
= !qemu_opt_get_bool(opts
, "delay", 1);
2728 is_unix
= qemu_opt_get(opts
, "path") != NULL
;
2734 fd
= unix_listen_opts(opts
, &local_err
);
2736 fd
= unix_connect_opts(opts
, &local_err
, NULL
, NULL
);
2740 fd
= inet_listen_opts(opts
, 0, &local_err
);
2742 fd
= inet_connect_opts(opts
, &local_err
, NULL
, NULL
);
2749 if (!is_waitconnect
)
2750 qemu_set_nonblock(fd
);
2752 chr
= qemu_chr_open_socket_fd(fd
, do_nodelay
, is_listen
, is_telnet
,
2753 is_waitconnect
, &local_err
);
2754 if (error_is_set(&local_err
)) {
2762 qerror_report_err(local_err
);
2763 error_free(local_err
);
2769 g_free(chr
->opaque
);
2775 /*********************************************************/
2776 /* Ring buffer chardev */
2783 } RingBufCharDriver
;
2785 static size_t ringbuf_count(const CharDriverState
*chr
)
2787 const RingBufCharDriver
*d
= chr
->opaque
;
2789 return d
->prod
- d
->cons
;
2792 static int ringbuf_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2794 RingBufCharDriver
*d
= chr
->opaque
;
2797 if (!buf
|| (len
< 0)) {
2801 for (i
= 0; i
< len
; i
++ ) {
2802 d
->cbuf
[d
->prod
++ & (d
->size
- 1)] = buf
[i
];
2803 if (d
->prod
- d
->cons
> d
->size
) {
2804 d
->cons
= d
->prod
- d
->size
;
2811 static int ringbuf_chr_read(CharDriverState
*chr
, uint8_t *buf
, int len
)
2813 RingBufCharDriver
*d
= chr
->opaque
;
2816 for (i
= 0; i
< len
&& d
->cons
!= d
->prod
; i
++) {
2817 buf
[i
] = d
->cbuf
[d
->cons
++ & (d
->size
- 1)];
2823 static void ringbuf_chr_close(struct CharDriverState
*chr
)
2825 RingBufCharDriver
*d
= chr
->opaque
;
2832 static CharDriverState
*qemu_chr_open_ringbuf(ChardevRingbuf
*opts
,
2835 CharDriverState
*chr
;
2836 RingBufCharDriver
*d
;
2838 chr
= g_malloc0(sizeof(CharDriverState
));
2839 d
= g_malloc(sizeof(*d
));
2841 d
->size
= opts
->has_size
? opts
->size
: 65536;
2843 /* The size must be power of 2 */
2844 if (d
->size
& (d
->size
- 1)) {
2845 error_setg(errp
, "size of ringbuf chardev must be power of two");
2851 d
->cbuf
= g_malloc0(d
->size
);
2854 chr
->chr_write
= ringbuf_chr_write
;
2855 chr
->chr_close
= ringbuf_chr_close
;
2865 static bool chr_is_ringbuf(const CharDriverState
*chr
)
2867 return chr
->chr_write
== ringbuf_chr_write
;
2870 void qmp_ringbuf_write(const char *device
, const char *data
,
2871 bool has_format
, enum DataFormat format
,
2874 CharDriverState
*chr
;
2875 const uint8_t *write_data
;
2879 chr
= qemu_chr_find(device
);
2881 error_setg(errp
, "Device '%s' not found", device
);
2885 if (!chr_is_ringbuf(chr
)) {
2886 error_setg(errp
,"%s is not a ringbuf device", device
);
2890 if (has_format
&& (format
== DATA_FORMAT_BASE64
)) {
2891 write_data
= g_base64_decode(data
, &write_count
);
2893 write_data
= (uint8_t *)data
;
2894 write_count
= strlen(data
);
2897 ret
= ringbuf_chr_write(chr
, write_data
, write_count
);
2899 if (write_data
!= (uint8_t *)data
) {
2900 g_free((void *)write_data
);
2904 error_setg(errp
, "Failed to write to device %s", device
);
2909 char *qmp_ringbuf_read(const char *device
, int64_t size
,
2910 bool has_format
, enum DataFormat format
,
2913 CharDriverState
*chr
;
2918 chr
= qemu_chr_find(device
);
2920 error_setg(errp
, "Device '%s' not found", device
);
2924 if (!chr_is_ringbuf(chr
)) {
2925 error_setg(errp
,"%s is not a ringbuf device", device
);
2930 error_setg(errp
, "size must be greater than zero");
2934 count
= ringbuf_count(chr
);
2935 size
= size
> count
? count
: size
;
2936 read_data
= g_malloc(size
+ 1);
2938 ringbuf_chr_read(chr
, read_data
, size
);
2940 if (has_format
&& (format
== DATA_FORMAT_BASE64
)) {
2941 data
= g_base64_encode(read_data
, size
);
2945 * FIXME should read only complete, valid UTF-8 characters up
2946 * to @size bytes. Invalid sequences should be replaced by a
2947 * suitable replacement character. Except when (and only
2948 * when) ring buffer lost characters since last read, initial
2949 * continuation characters should be dropped.
2951 read_data
[size
] = 0;
2952 data
= (char *)read_data
;
2958 QemuOpts
*qemu_chr_parse_compat(const char *label
, const char *filename
)
2960 char host
[65], port
[33], width
[8], height
[8];
2964 Error
*local_err
= NULL
;
2966 opts
= qemu_opts_create(qemu_find_opts("chardev"), label
, 1, &local_err
);
2967 if (error_is_set(&local_err
)) {
2968 qerror_report_err(local_err
);
2969 error_free(local_err
);
2973 if (strstart(filename
, "mon:", &p
)) {
2975 qemu_opt_set(opts
, "mux", "on");
2978 if (strcmp(filename
, "null") == 0 ||
2979 strcmp(filename
, "pty") == 0 ||
2980 strcmp(filename
, "msmouse") == 0 ||
2981 strcmp(filename
, "braille") == 0 ||
2982 strcmp(filename
, "stdio") == 0) {
2983 qemu_opt_set(opts
, "backend", filename
);
2986 if (strstart(filename
, "vc", &p
)) {
2987 qemu_opt_set(opts
, "backend", "vc");
2989 if (sscanf(p
+1, "%8[0-9]x%8[0-9]", width
, height
) == 2) {
2991 qemu_opt_set(opts
, "width", width
);
2992 qemu_opt_set(opts
, "height", height
);
2993 } else if (sscanf(p
+1, "%8[0-9]Cx%8[0-9]C", width
, height
) == 2) {
2995 qemu_opt_set(opts
, "cols", width
);
2996 qemu_opt_set(opts
, "rows", height
);
3003 if (strcmp(filename
, "con:") == 0) {
3004 qemu_opt_set(opts
, "backend", "console");
3007 if (strstart(filename
, "COM", NULL
)) {
3008 qemu_opt_set(opts
, "backend", "serial");
3009 qemu_opt_set(opts
, "path", filename
);
3012 if (strstart(filename
, "file:", &p
)) {
3013 qemu_opt_set(opts
, "backend", "file");
3014 qemu_opt_set(opts
, "path", p
);
3017 if (strstart(filename
, "pipe:", &p
)) {
3018 qemu_opt_set(opts
, "backend", "pipe");
3019 qemu_opt_set(opts
, "path", p
);
3022 if (strstart(filename
, "tcp:", &p
) ||
3023 strstart(filename
, "telnet:", &p
)) {
3024 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
3026 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1)
3029 qemu_opt_set(opts
, "backend", "socket");
3030 qemu_opt_set(opts
, "host", host
);
3031 qemu_opt_set(opts
, "port", port
);
3032 if (p
[pos
] == ',') {
3033 if (qemu_opts_do_parse(opts
, p
+pos
+1, NULL
) != 0)
3036 if (strstart(filename
, "telnet:", &p
))
3037 qemu_opt_set(opts
, "telnet", "on");
3040 if (strstart(filename
, "udp:", &p
)) {
3041 qemu_opt_set(opts
, "backend", "udp");
3042 if (sscanf(p
, "%64[^:]:%32[^@,]%n", host
, port
, &pos
) < 2) {
3044 if (sscanf(p
, ":%32[^@,]%n", port
, &pos
) < 1) {
3048 qemu_opt_set(opts
, "host", host
);
3049 qemu_opt_set(opts
, "port", port
);
3050 if (p
[pos
] == '@') {
3052 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
3054 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
3058 qemu_opt_set(opts
, "localaddr", host
);
3059 qemu_opt_set(opts
, "localport", port
);
3063 if (strstart(filename
, "unix:", &p
)) {
3064 qemu_opt_set(opts
, "backend", "socket");
3065 if (qemu_opts_do_parse(opts
, p
, "path") != 0)
3069 if (strstart(filename
, "/dev/parport", NULL
) ||
3070 strstart(filename
, "/dev/ppi", NULL
)) {
3071 qemu_opt_set(opts
, "backend", "parport");
3072 qemu_opt_set(opts
, "path", filename
);
3075 if (strstart(filename
, "/dev/", NULL
)) {
3076 qemu_opt_set(opts
, "backend", "tty");
3077 qemu_opt_set(opts
, "path", filename
);
3082 qemu_opts_del(opts
);
3086 static void qemu_chr_parse_file_out(QemuOpts
*opts
, ChardevBackend
*backend
,
3089 const char *path
= qemu_opt_get(opts
, "path");
3092 error_setg(errp
, "chardev: file: no filename given");
3095 backend
->file
= g_new0(ChardevFile
, 1);
3096 backend
->file
->out
= g_strdup(path
);
3099 static void qemu_chr_parse_stdio(QemuOpts
*opts
, ChardevBackend
*backend
,
3102 backend
->stdio
= g_new0(ChardevStdio
, 1);
3103 backend
->stdio
->has_signal
= true;
3104 backend
->stdio
->signal
=
3105 qemu_opt_get_bool(opts
, "signal", display_type
!= DT_NOGRAPHIC
);
3108 static void qemu_chr_parse_serial(QemuOpts
*opts
, ChardevBackend
*backend
,
3111 const char *device
= qemu_opt_get(opts
, "path");
3113 if (device
== NULL
) {
3114 error_setg(errp
, "chardev: serial/tty: no device path given");
3117 backend
->serial
= g_new0(ChardevHostdev
, 1);
3118 backend
->serial
->device
= g_strdup(device
);
3121 static void qemu_chr_parse_parallel(QemuOpts
*opts
, ChardevBackend
*backend
,
3124 const char *device
= qemu_opt_get(opts
, "path");
3126 if (device
== NULL
) {
3127 error_setg(errp
, "chardev: parallel: no device path given");
3130 backend
->parallel
= g_new0(ChardevHostdev
, 1);
3131 backend
->parallel
->device
= g_strdup(device
);
3134 static void qemu_chr_parse_pipe(QemuOpts
*opts
, ChardevBackend
*backend
,
3137 const char *device
= qemu_opt_get(opts
, "path");
3139 if (device
== NULL
) {
3140 error_setg(errp
, "chardev: pipe: no device path given");
3143 backend
->pipe
= g_new0(ChardevHostdev
, 1);
3144 backend
->pipe
->device
= g_strdup(device
);
3147 static void qemu_chr_parse_ringbuf(QemuOpts
*opts
, ChardevBackend
*backend
,
3152 backend
->memory
= g_new0(ChardevRingbuf
, 1);
3154 val
= qemu_opt_get_number(opts
, "size", 0);
3156 backend
->memory
->has_size
= true;
3157 backend
->memory
->size
= val
;
3161 typedef struct CharDriver
{
3164 CharDriverState
*(*open
)(QemuOpts
*opts
);
3165 /* new, qapi-based */
3167 void (*parse
)(QemuOpts
*opts
, ChardevBackend
*backend
, Error
**errp
);
3170 static GSList
*backends
;
3172 void register_char_driver(const char *name
, CharDriverState
*(*open
)(QemuOpts
*))
3176 s
= g_malloc0(sizeof(*s
));
3177 s
->name
= g_strdup(name
);
3180 backends
= g_slist_append(backends
, s
);
3183 void register_char_driver_qapi(const char *name
, int kind
,
3184 void (*parse
)(QemuOpts
*opts
, ChardevBackend
*backend
, Error
**errp
))
3188 s
= g_malloc0(sizeof(*s
));
3189 s
->name
= g_strdup(name
);
3193 backends
= g_slist_append(backends
, s
);
3196 CharDriverState
*qemu_chr_new_from_opts(QemuOpts
*opts
,
3197 void (*init
)(struct CharDriverState
*s
),
3201 CharDriverState
*chr
;
3204 if (qemu_opts_id(opts
) == NULL
) {
3205 error_setg(errp
, "chardev: no id specified");
3209 if (qemu_opt_get(opts
, "backend") == NULL
) {
3210 error_setg(errp
, "chardev: \"%s\" missing backend",
3211 qemu_opts_id(opts
));
3214 for (i
= backends
; i
; i
= i
->next
) {
3217 if (strcmp(cd
->name
, qemu_opt_get(opts
, "backend")) == 0) {
3222 error_setg(errp
, "chardev: backend \"%s\" not found",
3223 qemu_opt_get(opts
, "backend"));
3228 /* using new, qapi init */
3229 ChardevBackend
*backend
= g_new0(ChardevBackend
, 1);
3230 ChardevReturn
*ret
= NULL
;
3231 const char *id
= qemu_opts_id(opts
);
3232 const char *bid
= NULL
;
3234 if (qemu_opt_get_bool(opts
, "mux", 0)) {
3235 bid
= g_strdup_printf("%s-base", id
);
3239 backend
->kind
= cd
->kind
;
3241 cd
->parse(opts
, backend
, errp
);
3242 if (error_is_set(errp
)) {
3246 ret
= qmp_chardev_add(bid
? bid
: id
, backend
, errp
);
3247 if (error_is_set(errp
)) {
3252 qapi_free_ChardevBackend(backend
);
3253 qapi_free_ChardevReturn(ret
);
3254 backend
= g_new0(ChardevBackend
, 1);
3255 backend
->mux
= g_new0(ChardevMux
, 1);
3256 backend
->kind
= CHARDEV_BACKEND_KIND_MUX
;
3257 backend
->mux
->chardev
= g_strdup(bid
);
3258 ret
= qmp_chardev_add(id
, backend
, errp
);
3259 if (error_is_set(errp
)) {
3264 chr
= qemu_chr_find(id
);
3267 qapi_free_ChardevBackend(backend
);
3268 qapi_free_ChardevReturn(ret
);
3272 chr
= cd
->open(opts
);
3274 error_setg(errp
, "chardev: opening backend \"%s\" failed",
3275 qemu_opt_get(opts
, "backend"));
3280 chr
->filename
= g_strdup(qemu_opt_get(opts
, "backend"));
3282 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3284 if (qemu_opt_get_bool(opts
, "mux", 0)) {
3285 CharDriverState
*base
= chr
;
3286 int len
= strlen(qemu_opts_id(opts
)) + 6;
3287 base
->label
= g_malloc(len
);
3288 snprintf(base
->label
, len
, "%s-base", qemu_opts_id(opts
));
3289 chr
= qemu_chr_open_mux(base
);
3290 chr
->filename
= base
->filename
;
3291 chr
->avail_connections
= MAX_MUX
;
3292 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3294 chr
->avail_connections
= 1;
3296 chr
->label
= g_strdup(qemu_opts_id(opts
));
3301 qemu_opts_del(opts
);
3305 CharDriverState
*qemu_chr_new(const char *label
, const char *filename
, void (*init
)(struct CharDriverState
*s
))
3308 CharDriverState
*chr
;
3312 if (strstart(filename
, "chardev:", &p
)) {
3313 return qemu_chr_find(p
);
3316 opts
= qemu_chr_parse_compat(label
, filename
);
3320 chr
= qemu_chr_new_from_opts(opts
, init
, &err
);
3321 if (error_is_set(&err
)) {
3322 fprintf(stderr
, "%s\n", error_get_pretty(err
));
3325 if (chr
&& qemu_opt_get_bool(opts
, "mux", 0)) {
3326 qemu_chr_fe_claim_no_fail(chr
);
3327 monitor_init(chr
, MONITOR_USE_READLINE
);
3332 void qemu_chr_fe_set_echo(struct CharDriverState
*chr
, bool echo
)
3334 if (chr
->chr_set_echo
) {
3335 chr
->chr_set_echo(chr
, echo
);
3339 void qemu_chr_fe_set_open(struct CharDriverState
*chr
, int fe_open
)
3341 if (chr
->fe_open
== fe_open
) {
3344 chr
->fe_open
= fe_open
;
3345 if (chr
->chr_set_fe_open
) {
3346 chr
->chr_set_fe_open(chr
, fe_open
);
3350 int qemu_chr_fe_add_watch(CharDriverState
*s
, GIOCondition cond
,
3351 GIOFunc func
, void *user_data
)
3356 if (s
->chr_add_watch
== NULL
) {
3360 src
= s
->chr_add_watch(s
, cond
);
3361 g_source_set_callback(src
, (GSourceFunc
)func
, user_data
, NULL
);
3362 tag
= g_source_attach(src
, NULL
);
3363 g_source_unref(src
);
3368 int qemu_chr_fe_claim(CharDriverState
*s
)
3370 if (s
->avail_connections
< 1) {
3373 s
->avail_connections
--;
3377 void qemu_chr_fe_claim_no_fail(CharDriverState
*s
)
3379 if (qemu_chr_fe_claim(s
) != 0) {
3380 fprintf(stderr
, "%s: error chardev \"%s\" already used\n",
3381 __func__
, s
->label
);
3386 void qemu_chr_fe_release(CharDriverState
*s
)
3388 s
->avail_connections
++;
3391 void qemu_chr_delete(CharDriverState
*chr
)
3393 QTAILQ_REMOVE(&chardevs
, chr
, next
);
3394 if (chr
->chr_close
) {
3395 chr
->chr_close(chr
);
3397 g_free(chr
->filename
);
3400 qemu_opts_del(chr
->opts
);
3405 ChardevInfoList
*qmp_query_chardev(Error
**errp
)
3407 ChardevInfoList
*chr_list
= NULL
;
3408 CharDriverState
*chr
;
3410 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
3411 ChardevInfoList
*info
= g_malloc0(sizeof(*info
));
3412 info
->value
= g_malloc0(sizeof(*info
->value
));
3413 info
->value
->label
= g_strdup(chr
->label
);
3414 info
->value
->filename
= g_strdup(chr
->filename
);
3416 info
->next
= chr_list
;
3423 CharDriverState
*qemu_chr_find(const char *name
)
3425 CharDriverState
*chr
;
3427 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
3428 if (strcmp(chr
->label
, name
) != 0)
3435 /* Get a character (serial) device interface. */
3436 CharDriverState
*qemu_char_get_next_serial(void)
3438 static int next_serial
;
3439 CharDriverState
*chr
;
3441 /* FIXME: This function needs to go away: use chardev properties! */
3443 while (next_serial
< MAX_SERIAL_PORTS
&& serial_hds
[next_serial
]) {
3444 chr
= serial_hds
[next_serial
++];
3445 qemu_chr_fe_claim_no_fail(chr
);
3451 QemuOptsList qemu_chardev_opts
= {
3453 .implied_opt_name
= "backend",
3454 .head
= QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts
.head
),
3458 .type
= QEMU_OPT_STRING
,
3461 .type
= QEMU_OPT_STRING
,
3464 .type
= QEMU_OPT_STRING
,
3467 .type
= QEMU_OPT_STRING
,
3469 .name
= "localaddr",
3470 .type
= QEMU_OPT_STRING
,
3472 .name
= "localport",
3473 .type
= QEMU_OPT_STRING
,
3476 .type
= QEMU_OPT_NUMBER
,
3479 .type
= QEMU_OPT_BOOL
,
3482 .type
= QEMU_OPT_BOOL
,
3485 .type
= QEMU_OPT_BOOL
,
3488 .type
= QEMU_OPT_BOOL
,
3491 .type
= QEMU_OPT_BOOL
,
3494 .type
= QEMU_OPT_BOOL
,
3497 .type
= QEMU_OPT_NUMBER
,
3500 .type
= QEMU_OPT_NUMBER
,
3503 .type
= QEMU_OPT_NUMBER
,
3506 .type
= QEMU_OPT_NUMBER
,
3509 .type
= QEMU_OPT_BOOL
,
3512 .type
= QEMU_OPT_BOOL
,
3515 .type
= QEMU_OPT_STRING
,
3518 .type
= QEMU_OPT_NUMBER
,
3521 .type
= QEMU_OPT_SIZE
,
3523 { /* end of list */ }
3529 static CharDriverState
*qmp_chardev_open_file(ChardevFile
*file
, Error
**errp
)
3534 error_setg(errp
, "input file not supported");
3538 out
= CreateFile(file
->out
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
3539 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
3540 if (out
== INVALID_HANDLE_VALUE
) {
3541 error_setg(errp
, "open %s failed", file
->out
);
3544 return qemu_chr_open_win_file(out
);
3547 static CharDriverState
*qmp_chardev_open_serial(ChardevHostdev
*serial
,
3550 return qemu_chr_open_win_path(serial
->device
);
3553 static CharDriverState
*qmp_chardev_open_parallel(ChardevHostdev
*parallel
,
3556 error_setg(errp
, "character device backend type 'parallel' not supported");
3562 static int qmp_chardev_open_file_source(char *src
, int flags
,
3567 TFR(fd
= qemu_open(src
, flags
, 0666));
3569 error_setg(errp
, "open %s: %s", src
, strerror(errno
));
3574 static CharDriverState
*qmp_chardev_open_file(ChardevFile
*file
, Error
**errp
)
3576 int flags
, in
= -1, out
= -1;
3578 flags
= O_WRONLY
| O_TRUNC
| O_CREAT
| O_BINARY
;
3579 out
= qmp_chardev_open_file_source(file
->out
, flags
, errp
);
3580 if (error_is_set(errp
)) {
3586 in
= qmp_chardev_open_file_source(file
->in
, flags
, errp
);
3587 if (error_is_set(errp
)) {
3593 return qemu_chr_open_fd(in
, out
);
3596 static CharDriverState
*qmp_chardev_open_serial(ChardevHostdev
*serial
,
3599 #ifdef HAVE_CHARDEV_TTY
3602 fd
= qmp_chardev_open_file_source(serial
->device
, O_RDWR
, errp
);
3603 if (error_is_set(errp
)) {
3606 qemu_set_nonblock(fd
);
3607 return qemu_chr_open_tty_fd(fd
);
3609 error_setg(errp
, "character device backend type 'serial' not supported");
3614 static CharDriverState
*qmp_chardev_open_parallel(ChardevHostdev
*parallel
,
3617 #ifdef HAVE_CHARDEV_PARPORT
3620 fd
= qmp_chardev_open_file_source(parallel
->device
, O_RDWR
, errp
);
3621 if (error_is_set(errp
)) {
3624 return qemu_chr_open_pp_fd(fd
);
3626 error_setg(errp
, "character device backend type 'parallel' not supported");
3633 static CharDriverState
*qmp_chardev_open_socket(ChardevSocket
*sock
,
3636 SocketAddress
*addr
= sock
->addr
;
3637 bool do_nodelay
= sock
->has_nodelay
? sock
->nodelay
: false;
3638 bool is_listen
= sock
->has_server
? sock
->server
: true;
3639 bool is_telnet
= sock
->has_telnet
? sock
->telnet
: false;
3640 bool is_waitconnect
= sock
->has_wait
? sock
->wait
: false;
3644 fd
= socket_listen(addr
, errp
);
3646 fd
= socket_connect(addr
, errp
, NULL
, NULL
);
3648 if (error_is_set(errp
)) {
3651 return qemu_chr_open_socket_fd(fd
, do_nodelay
, is_listen
,
3652 is_telnet
, is_waitconnect
, errp
);
3655 static CharDriverState
*qmp_chardev_open_dgram(ChardevDgram
*dgram
,
3660 fd
= socket_dgram(dgram
->remote
, dgram
->local
, errp
);
3661 if (error_is_set(errp
)) {
3664 return qemu_chr_open_udp_fd(fd
);
3667 ChardevReturn
*qmp_chardev_add(const char *id
, ChardevBackend
*backend
,
3670 ChardevReturn
*ret
= g_new0(ChardevReturn
, 1);
3671 CharDriverState
*base
, *chr
= NULL
;
3673 chr
= qemu_chr_find(id
);
3675 error_setg(errp
, "Chardev '%s' already exists", id
);
3680 switch (backend
->kind
) {
3681 case CHARDEV_BACKEND_KIND_FILE
:
3682 chr
= qmp_chardev_open_file(backend
->file
, errp
);
3684 case CHARDEV_BACKEND_KIND_SERIAL
:
3685 chr
= qmp_chardev_open_serial(backend
->serial
, errp
);
3687 case CHARDEV_BACKEND_KIND_PARALLEL
:
3688 chr
= qmp_chardev_open_parallel(backend
->parallel
, errp
);
3690 case CHARDEV_BACKEND_KIND_PIPE
:
3691 chr
= qemu_chr_open_pipe(backend
->pipe
);
3693 case CHARDEV_BACKEND_KIND_SOCKET
:
3694 chr
= qmp_chardev_open_socket(backend
->socket
, errp
);
3696 case CHARDEV_BACKEND_KIND_DGRAM
:
3697 chr
= qmp_chardev_open_dgram(backend
->dgram
, errp
);
3699 #ifdef HAVE_CHARDEV_TTY
3700 case CHARDEV_BACKEND_KIND_PTY
:
3701 chr
= qemu_chr_open_pty(id
, ret
);
3704 case CHARDEV_BACKEND_KIND_NULL
:
3705 chr
= qemu_chr_open_null();
3707 case CHARDEV_BACKEND_KIND_MUX
:
3708 base
= qemu_chr_find(backend
->mux
->chardev
);
3710 error_setg(errp
, "mux: base chardev %s not found",
3711 backend
->mux
->chardev
);
3714 chr
= qemu_chr_open_mux(base
);
3716 case CHARDEV_BACKEND_KIND_MSMOUSE
:
3717 chr
= qemu_chr_open_msmouse();
3719 #ifdef CONFIG_BRLAPI
3720 case CHARDEV_BACKEND_KIND_BRAILLE
:
3721 chr
= chr_baum_init();
3724 case CHARDEV_BACKEND_KIND_STDIO
:
3725 chr
= qemu_chr_open_stdio(backend
->stdio
);
3728 case CHARDEV_BACKEND_KIND_CONSOLE
:
3729 chr
= qemu_chr_open_win_con();
3733 case CHARDEV_BACKEND_KIND_SPICEVMC
:
3734 chr
= qemu_chr_open_spice_vmc(backend
->spicevmc
->type
);
3736 case CHARDEV_BACKEND_KIND_SPICEPORT
:
3737 chr
= qemu_chr_open_spice_port(backend
->spiceport
->fqdn
);
3740 case CHARDEV_BACKEND_KIND_VC
:
3741 chr
= vc_init(backend
->vc
);
3743 case CHARDEV_BACKEND_KIND_MEMORY
:
3744 chr
= qemu_chr_open_ringbuf(backend
->memory
, errp
);
3747 error_setg(errp
, "unknown chardev backend (%d)", backend
->kind
);
3751 if (chr
== NULL
&& !error_is_set(errp
)) {
3752 error_setg(errp
, "Failed to create chardev");
3755 chr
->label
= g_strdup(id
);
3756 chr
->avail_connections
=
3757 (backend
->kind
== CHARDEV_BACKEND_KIND_MUX
) ? MAX_MUX
: 1;
3758 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3766 void qmp_chardev_remove(const char *id
, Error
**errp
)
3768 CharDriverState
*chr
;
3770 chr
= qemu_chr_find(id
);
3772 error_setg(errp
, "Chardev '%s' not found", id
);
3775 if (chr
->chr_can_read
|| chr
->chr_read
||
3776 chr
->chr_event
|| chr
->handler_opaque
) {
3777 error_setg(errp
, "Chardev '%s' is busy", id
);
3780 qemu_chr_delete(chr
);
3783 static void register_types(void)
3785 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL
, NULL
);
3786 register_char_driver("socket", qemu_chr_open_socket
);
3787 register_char_driver("udp", qemu_chr_open_udp
);
3788 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY
,
3789 qemu_chr_parse_ringbuf
);
3790 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE
,
3791 qemu_chr_parse_file_out
);
3792 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO
,
3793 qemu_chr_parse_stdio
);
3794 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL
,
3795 qemu_chr_parse_serial
);
3796 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL
,
3797 qemu_chr_parse_serial
);
3798 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL
,
3799 qemu_chr_parse_parallel
);
3800 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL
,
3801 qemu_chr_parse_parallel
);
3802 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY
, NULL
);
3803 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE
, NULL
);
3804 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE
,
3805 qemu_chr_parse_pipe
);
3808 type_init(register_types
);