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(__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
602 IOCanReadHandler
*fd_can_read
;
607 static IOWatchPoll
*io_watch_poll_from_source(GSource
*source
)
609 return container_of(source
, IOWatchPoll
, parent
);
612 static gboolean
io_watch_poll_prepare(GSource
*source
, gint
*timeout_
)
614 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
615 bool now_active
= iwp
->fd_can_read(iwp
->opaque
) > 0;
616 bool was_active
= iwp
->src
!= NULL
;
617 if (was_active
== now_active
) {
622 iwp
->src
= g_io_create_watch(iwp
->channel
, G_IO_IN
| G_IO_ERR
| G_IO_HUP
);
623 g_source_set_callback(iwp
->src
, iwp
->fd_read
, iwp
->opaque
, NULL
);
624 g_source_attach(iwp
->src
, NULL
);
626 g_source_destroy(iwp
->src
);
627 g_source_unref(iwp
->src
);
633 static gboolean
io_watch_poll_check(GSource
*source
)
638 static gboolean
io_watch_poll_dispatch(GSource
*source
, GSourceFunc callback
,
644 static void io_watch_poll_finalize(GSource
*source
)
646 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
648 g_source_destroy(iwp
->src
);
649 g_source_unref(iwp
->src
);
654 static GSourceFuncs io_watch_poll_funcs
= {
655 .prepare
= io_watch_poll_prepare
,
656 .check
= io_watch_poll_check
,
657 .dispatch
= io_watch_poll_dispatch
,
658 .finalize
= io_watch_poll_finalize
,
661 /* Can only be used for read */
662 static guint
io_add_watch_poll(GIOChannel
*channel
,
663 IOCanReadHandler
*fd_can_read
,
670 iwp
= (IOWatchPoll
*) g_source_new(&io_watch_poll_funcs
, sizeof(IOWatchPoll
));
671 iwp
->fd_can_read
= fd_can_read
;
672 iwp
->opaque
= user_data
;
673 iwp
->channel
= channel
;
674 iwp
->fd_read
= (GSourceFunc
) fd_read
;
677 tag
= g_source_attach(&iwp
->parent
, NULL
);
678 g_source_unref(&iwp
->parent
);
683 static GIOChannel
*io_channel_from_fd(int fd
)
691 chan
= g_io_channel_unix_new(fd
);
693 g_io_channel_set_encoding(chan
, NULL
, NULL
);
694 g_io_channel_set_buffered(chan
, FALSE
);
700 static GIOChannel
*io_channel_from_socket(int fd
)
709 chan
= g_io_channel_win32_new_socket(fd
);
711 chan
= g_io_channel_unix_new(fd
);
714 g_io_channel_set_encoding(chan
, NULL
, NULL
);
715 g_io_channel_set_buffered(chan
, FALSE
);
720 static int io_channel_send(GIOChannel
*fd
, const void *buf
, size_t len
)
726 while (offset
< len
) {
729 status
= g_io_channel_write_chars(fd
, buf
+ offset
, len
- offset
,
730 &bytes_written
, NULL
);
731 if (status
!= G_IO_STATUS_NORMAL
) {
732 if (status
== G_IO_STATUS_AGAIN
) {
733 /* If we've written any data, return a partial write. */
743 } else if (status
== G_IO_STATUS_EOF
) {
747 offset
+= bytes_written
;
755 typedef struct FDCharDriver
{
756 CharDriverState
*chr
;
757 GIOChannel
*fd_in
, *fd_out
;
760 QTAILQ_ENTRY(FDCharDriver
) node
;
763 static int fd_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
765 FDCharDriver
*s
= chr
->opaque
;
767 return io_channel_send(s
->fd_out
, buf
, len
);
770 static gboolean
fd_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
772 CharDriverState
*chr
= opaque
;
773 FDCharDriver
*s
= chr
->opaque
;
775 uint8_t buf
[READ_BUF_LEN
];
780 if (len
> s
->max_size
) {
787 status
= g_io_channel_read_chars(chan
, (gchar
*)buf
,
788 len
, &bytes_read
, NULL
);
789 if (status
== G_IO_STATUS_EOF
) {
791 g_source_remove(s
->fd_in_tag
);
794 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
797 if (status
== G_IO_STATUS_NORMAL
) {
798 qemu_chr_be_write(chr
, buf
, bytes_read
);
804 static int fd_chr_read_poll(void *opaque
)
806 CharDriverState
*chr
= opaque
;
807 FDCharDriver
*s
= chr
->opaque
;
809 s
->max_size
= qemu_chr_be_can_write(chr
);
813 static GSource
*fd_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
815 FDCharDriver
*s
= chr
->opaque
;
816 return g_io_create_watch(s
->fd_out
, cond
);
819 static void fd_chr_update_read_handler(CharDriverState
*chr
)
821 FDCharDriver
*s
= chr
->opaque
;
824 g_source_remove(s
->fd_in_tag
);
829 s
->fd_in_tag
= io_add_watch_poll(s
->fd_in
, fd_chr_read_poll
, fd_chr_read
, chr
);
833 static void fd_chr_close(struct CharDriverState
*chr
)
835 FDCharDriver
*s
= chr
->opaque
;
838 g_source_remove(s
->fd_in_tag
);
843 g_io_channel_unref(s
->fd_in
);
846 g_io_channel_unref(s
->fd_out
);
850 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
853 /* open a character device to a unix fd */
854 static CharDriverState
*qemu_chr_open_fd(int fd_in
, int fd_out
)
856 CharDriverState
*chr
;
859 chr
= g_malloc0(sizeof(CharDriverState
));
860 s
= g_malloc0(sizeof(FDCharDriver
));
861 s
->fd_in
= io_channel_from_fd(fd_in
);
862 s
->fd_out
= io_channel_from_fd(fd_out
);
863 fcntl(fd_out
, F_SETFL
, O_NONBLOCK
);
866 chr
->chr_add_watch
= fd_chr_add_watch
;
867 chr
->chr_write
= fd_chr_write
;
868 chr
->chr_update_read_handler
= fd_chr_update_read_handler
;
869 chr
->chr_close
= fd_chr_close
;
871 qemu_chr_be_generic_open(chr
);
876 static CharDriverState
*qemu_chr_open_pipe(ChardevHostdev
*opts
)
879 char filename_in
[256], filename_out
[256];
880 const char *filename
= opts
->device
;
882 if (filename
== NULL
) {
883 fprintf(stderr
, "chardev: pipe: no filename given\n");
887 snprintf(filename_in
, 256, "%s.in", filename
);
888 snprintf(filename_out
, 256, "%s.out", filename
);
889 TFR(fd_in
= qemu_open(filename_in
, O_RDWR
| O_BINARY
));
890 TFR(fd_out
= qemu_open(filename_out
, O_RDWR
| O_BINARY
));
891 if (fd_in
< 0 || fd_out
< 0) {
896 TFR(fd_in
= fd_out
= qemu_open(filename
, O_RDWR
| O_BINARY
));
901 return qemu_chr_open_fd(fd_in
, fd_out
);
904 /* init terminal so that we can grab keys */
905 static struct termios oldtty
;
906 static int old_fd0_flags
;
907 static bool stdio_allow_signal
;
909 static void term_exit(void)
911 tcsetattr (0, TCSANOW
, &oldtty
);
912 fcntl(0, F_SETFL
, old_fd0_flags
);
915 static void qemu_chr_set_echo_stdio(CharDriverState
*chr
, bool echo
)
921 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
922 |INLCR
|IGNCR
|ICRNL
|IXON
);
923 tty
.c_oflag
|= OPOST
;
924 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
925 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
930 /* if graphical mode, we allow Ctrl-C handling */
931 if (!stdio_allow_signal
)
932 tty
.c_lflag
&= ~ISIG
;
934 tcsetattr (0, TCSANOW
, &tty
);
937 static void qemu_chr_close_stdio(struct CharDriverState
*chr
)
943 static CharDriverState
*qemu_chr_open_stdio(ChardevStdio
*opts
)
945 CharDriverState
*chr
;
947 if (is_daemonized()) {
948 error_report("cannot use stdio with -daemonize");
951 old_fd0_flags
= fcntl(0, F_GETFL
);
952 tcgetattr (0, &oldtty
);
953 fcntl(0, F_SETFL
, O_NONBLOCK
);
956 chr
= qemu_chr_open_fd(0, 1);
957 chr
->chr_close
= qemu_chr_close_stdio
;
958 chr
->chr_set_echo
= qemu_chr_set_echo_stdio
;
959 stdio_allow_signal
= display_type
!= DT_NOGRAPHIC
;
960 if (opts
->has_signal
) {
961 stdio_allow_signal
= opts
->signal
;
963 qemu_chr_fe_set_echo(chr
, false);
969 /* Once Solaris has openpty(), this is going to be removed. */
970 static int openpty(int *amaster
, int *aslave
, char *name
,
971 struct termios
*termp
, struct winsize
*winp
)
974 int mfd
= -1, sfd
= -1;
976 *amaster
= *aslave
= -1;
978 mfd
= open("/dev/ptmx", O_RDWR
| O_NOCTTY
);
982 if (grantpt(mfd
) == -1 || unlockpt(mfd
) == -1)
985 if ((slave
= ptsname(mfd
)) == NULL
)
988 if ((sfd
= open(slave
, O_RDONLY
| O_NOCTTY
)) == -1)
991 if (ioctl(sfd
, I_PUSH
, "ptem") == -1 ||
992 (termp
!= NULL
&& tcgetattr(sfd
, termp
) < 0))
1000 ioctl(sfd
, TIOCSWINSZ
, winp
);
1011 static void cfmakeraw (struct termios
*termios_p
)
1013 termios_p
->c_iflag
&=
1014 ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
1015 termios_p
->c_oflag
&= ~OPOST
;
1016 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
1017 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
1018 termios_p
->c_cflag
|= CS8
;
1020 termios_p
->c_cc
[VMIN
] = 0;
1021 termios_p
->c_cc
[VTIME
] = 0;
1025 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1026 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1027 || defined(__GLIBC__)
1029 #define HAVE_CHARDEV_TTY 1
1039 static void pty_chr_update_read_handler(CharDriverState
*chr
);
1040 static void pty_chr_state(CharDriverState
*chr
, int connected
);
1042 static gboolean
pty_chr_timer(gpointer opaque
)
1044 struct CharDriverState
*chr
= opaque
;
1045 PtyCharDriver
*s
= chr
->opaque
;
1052 pty_chr_update_read_handler(chr
);
1058 static void pty_chr_rearm_timer(CharDriverState
*chr
, int ms
)
1060 PtyCharDriver
*s
= chr
->opaque
;
1063 g_source_remove(s
->timer_tag
);
1068 s
->timer_tag
= g_timeout_add_seconds(1, pty_chr_timer
, chr
);
1070 s
->timer_tag
= g_timeout_add(ms
, pty_chr_timer
, chr
);
1074 static int pty_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1076 PtyCharDriver
*s
= chr
->opaque
;
1078 if (!s
->connected
) {
1079 /* guest sends data, check for (re-)connect */
1080 pty_chr_update_read_handler(chr
);
1083 return io_channel_send(s
->fd
, buf
, len
);
1086 static GSource
*pty_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
1088 PtyCharDriver
*s
= chr
->opaque
;
1089 return g_io_create_watch(s
->fd
, cond
);
1092 static int pty_chr_read_poll(void *opaque
)
1094 CharDriverState
*chr
= opaque
;
1095 PtyCharDriver
*s
= chr
->opaque
;
1097 s
->read_bytes
= qemu_chr_be_can_write(chr
);
1098 return s
->read_bytes
;
1101 static gboolean
pty_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
1103 CharDriverState
*chr
= opaque
;
1104 PtyCharDriver
*s
= chr
->opaque
;
1106 uint8_t buf
[READ_BUF_LEN
];
1110 if (len
> s
->read_bytes
)
1111 len
= s
->read_bytes
;
1115 status
= g_io_channel_read_chars(s
->fd
, (gchar
*)buf
, len
, &size
, NULL
);
1116 if (status
!= G_IO_STATUS_NORMAL
) {
1117 pty_chr_state(chr
, 0);
1120 pty_chr_state(chr
, 1);
1121 qemu_chr_be_write(chr
, buf
, size
);
1126 static void pty_chr_update_read_handler(CharDriverState
*chr
)
1128 PtyCharDriver
*s
= chr
->opaque
;
1131 pfd
.fd
= g_io_channel_unix_get_fd(s
->fd
);
1132 pfd
.events
= G_IO_OUT
;
1135 if (pfd
.revents
& G_IO_HUP
) {
1136 pty_chr_state(chr
, 0);
1138 pty_chr_state(chr
, 1);
1142 static void pty_chr_state(CharDriverState
*chr
, int connected
)
1144 PtyCharDriver
*s
= chr
->opaque
;
1148 g_source_remove(s
->fd_tag
);
1152 /* (re-)connect poll interval for idle guests: once per second.
1153 * We check more frequently in case the guests sends data to
1154 * the virtual device linked to our pty. */
1155 pty_chr_rearm_timer(chr
, 1000);
1158 g_source_remove(s
->timer_tag
);
1161 if (!s
->connected
) {
1162 qemu_chr_be_generic_open(chr
);
1164 s
->fd_tag
= io_add_watch_poll(s
->fd
, pty_chr_read_poll
, pty_chr_read
, chr
);
1170 static void pty_chr_close(struct CharDriverState
*chr
)
1172 PtyCharDriver
*s
= chr
->opaque
;
1176 g_source_remove(s
->fd_tag
);
1179 fd
= g_io_channel_unix_get_fd(s
->fd
);
1180 g_io_channel_unref(s
->fd
);
1183 g_source_remove(s
->timer_tag
);
1187 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1190 static CharDriverState
*qemu_chr_open_pty(const char *id
,
1193 CharDriverState
*chr
;
1196 int master_fd
, slave_fd
;
1197 #if defined(__OpenBSD__) || defined(__DragonFly__)
1198 char pty_name
[PATH_MAX
];
1199 #define q_ptsname(x) pty_name
1201 char *pty_name
= NULL
;
1202 #define q_ptsname(x) ptsname(x)
1205 if (openpty(&master_fd
, &slave_fd
, pty_name
, NULL
, NULL
) < 0) {
1209 /* Set raw attributes on the pty. */
1210 tcgetattr(slave_fd
, &tty
);
1212 tcsetattr(slave_fd
, TCSAFLUSH
, &tty
);
1215 chr
= g_malloc0(sizeof(CharDriverState
));
1217 chr
->filename
= g_strdup_printf("pty:%s", q_ptsname(master_fd
));
1218 ret
->pty
= g_strdup(q_ptsname(master_fd
));
1219 ret
->has_pty
= true;
1221 fprintf(stderr
, "char device redirected to %s (label %s)\n",
1222 q_ptsname(master_fd
), id
);
1224 s
= g_malloc0(sizeof(PtyCharDriver
));
1226 chr
->chr_write
= pty_chr_write
;
1227 chr
->chr_update_read_handler
= pty_chr_update_read_handler
;
1228 chr
->chr_close
= pty_chr_close
;
1229 chr
->chr_add_watch
= pty_chr_add_watch
;
1231 s
->fd
= io_channel_from_fd(master_fd
);
1237 static void tty_serial_init(int fd
, int speed
,
1238 int parity
, int data_bits
, int stop_bits
)
1244 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1245 speed
, parity
, data_bits
, stop_bits
);
1247 tcgetattr (fd
, &tty
);
1249 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1250 speed
= speed
* 10 / 11;
1267 /* Non-Posix values follow. They may be unsupported on some systems. */
1269 check_speed(115200);
1271 check_speed(230400);
1274 check_speed(460800);
1277 check_speed(500000);
1280 check_speed(576000);
1283 check_speed(921600);
1286 check_speed(1000000);
1289 check_speed(1152000);
1292 check_speed(1500000);
1295 check_speed(2000000);
1298 check_speed(2500000);
1301 check_speed(3000000);
1304 check_speed(3500000);
1307 check_speed(4000000);
1312 cfsetispeed(&tty
, spd
);
1313 cfsetospeed(&tty
, spd
);
1315 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1316 |INLCR
|IGNCR
|ICRNL
|IXON
);
1317 tty
.c_oflag
|= OPOST
;
1318 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
|ISIG
);
1319 tty
.c_cflag
&= ~(CSIZE
|PARENB
|PARODD
|CRTSCTS
|CSTOPB
);
1340 tty
.c_cflag
|= PARENB
;
1343 tty
.c_cflag
|= PARENB
| PARODD
;
1347 tty
.c_cflag
|= CSTOPB
;
1349 tcsetattr (fd
, TCSANOW
, &tty
);
1352 static int tty_serial_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1354 FDCharDriver
*s
= chr
->opaque
;
1357 case CHR_IOCTL_SERIAL_SET_PARAMS
:
1359 QEMUSerialSetParams
*ssp
= arg
;
1360 tty_serial_init(g_io_channel_unix_get_fd(s
->fd_in
),
1361 ssp
->speed
, ssp
->parity
,
1362 ssp
->data_bits
, ssp
->stop_bits
);
1365 case CHR_IOCTL_SERIAL_SET_BREAK
:
1367 int enable
= *(int *)arg
;
1369 tcsendbreak(g_io_channel_unix_get_fd(s
->fd_in
), 1);
1373 case CHR_IOCTL_SERIAL_GET_TIOCM
:
1376 int *targ
= (int *)arg
;
1377 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMGET
, &sarg
);
1379 if (sarg
& TIOCM_CTS
)
1380 *targ
|= CHR_TIOCM_CTS
;
1381 if (sarg
& TIOCM_CAR
)
1382 *targ
|= CHR_TIOCM_CAR
;
1383 if (sarg
& TIOCM_DSR
)
1384 *targ
|= CHR_TIOCM_DSR
;
1385 if (sarg
& TIOCM_RI
)
1386 *targ
|= CHR_TIOCM_RI
;
1387 if (sarg
& TIOCM_DTR
)
1388 *targ
|= CHR_TIOCM_DTR
;
1389 if (sarg
& TIOCM_RTS
)
1390 *targ
|= CHR_TIOCM_RTS
;
1393 case CHR_IOCTL_SERIAL_SET_TIOCM
:
1395 int sarg
= *(int *)arg
;
1397 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMGET
, &targ
);
1398 targ
&= ~(CHR_TIOCM_CTS
| CHR_TIOCM_CAR
| CHR_TIOCM_DSR
1399 | CHR_TIOCM_RI
| CHR_TIOCM_DTR
| CHR_TIOCM_RTS
);
1400 if (sarg
& CHR_TIOCM_CTS
)
1402 if (sarg
& CHR_TIOCM_CAR
)
1404 if (sarg
& CHR_TIOCM_DSR
)
1406 if (sarg
& CHR_TIOCM_RI
)
1408 if (sarg
& CHR_TIOCM_DTR
)
1410 if (sarg
& CHR_TIOCM_RTS
)
1412 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMSET
, &targ
);
1421 static void qemu_chr_close_tty(CharDriverState
*chr
)
1423 FDCharDriver
*s
= chr
->opaque
;
1427 fd
= g_io_channel_unix_get_fd(s
->fd_in
);
1437 static CharDriverState
*qemu_chr_open_tty_fd(int fd
)
1439 CharDriverState
*chr
;
1441 tty_serial_init(fd
, 115200, 'N', 8, 1);
1442 chr
= qemu_chr_open_fd(fd
, fd
);
1443 chr
->chr_ioctl
= tty_serial_ioctl
;
1444 chr
->chr_close
= qemu_chr_close_tty
;
1447 #endif /* __linux__ || __sun__ */
1449 #if defined(__linux__)
1451 #define HAVE_CHARDEV_PARPORT 1
1456 } ParallelCharDriver
;
1458 static int pp_hw_mode(ParallelCharDriver
*s
, uint16_t mode
)
1460 if (s
->mode
!= mode
) {
1462 if (ioctl(s
->fd
, PPSETMODE
, &m
) < 0)
1469 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1471 ParallelCharDriver
*drv
= chr
->opaque
;
1476 case CHR_IOCTL_PP_READ_DATA
:
1477 if (ioctl(fd
, PPRDATA
, &b
) < 0)
1479 *(uint8_t *)arg
= b
;
1481 case CHR_IOCTL_PP_WRITE_DATA
:
1482 b
= *(uint8_t *)arg
;
1483 if (ioctl(fd
, PPWDATA
, &b
) < 0)
1486 case CHR_IOCTL_PP_READ_CONTROL
:
1487 if (ioctl(fd
, PPRCONTROL
, &b
) < 0)
1489 /* Linux gives only the lowest bits, and no way to know data
1490 direction! For better compatibility set the fixed upper
1492 *(uint8_t *)arg
= b
| 0xc0;
1494 case CHR_IOCTL_PP_WRITE_CONTROL
:
1495 b
= *(uint8_t *)arg
;
1496 if (ioctl(fd
, PPWCONTROL
, &b
) < 0)
1499 case CHR_IOCTL_PP_READ_STATUS
:
1500 if (ioctl(fd
, PPRSTATUS
, &b
) < 0)
1502 *(uint8_t *)arg
= b
;
1504 case CHR_IOCTL_PP_DATA_DIR
:
1505 if (ioctl(fd
, PPDATADIR
, (int *)arg
) < 0)
1508 case CHR_IOCTL_PP_EPP_READ_ADDR
:
1509 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1510 struct ParallelIOArg
*parg
= arg
;
1511 int n
= read(fd
, parg
->buffer
, parg
->count
);
1512 if (n
!= parg
->count
) {
1517 case CHR_IOCTL_PP_EPP_READ
:
1518 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1519 struct ParallelIOArg
*parg
= arg
;
1520 int n
= read(fd
, parg
->buffer
, parg
->count
);
1521 if (n
!= parg
->count
) {
1526 case CHR_IOCTL_PP_EPP_WRITE_ADDR
:
1527 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1528 struct ParallelIOArg
*parg
= arg
;
1529 int n
= write(fd
, parg
->buffer
, parg
->count
);
1530 if (n
!= parg
->count
) {
1535 case CHR_IOCTL_PP_EPP_WRITE
:
1536 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1537 struct ParallelIOArg
*parg
= arg
;
1538 int n
= write(fd
, parg
->buffer
, parg
->count
);
1539 if (n
!= parg
->count
) {
1550 static void pp_close(CharDriverState
*chr
)
1552 ParallelCharDriver
*drv
= chr
->opaque
;
1555 pp_hw_mode(drv
, IEEE1284_MODE_COMPAT
);
1556 ioctl(fd
, PPRELEASE
);
1559 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1562 static CharDriverState
*qemu_chr_open_pp_fd(int fd
)
1564 CharDriverState
*chr
;
1565 ParallelCharDriver
*drv
;
1567 if (ioctl(fd
, PPCLAIM
) < 0) {
1572 drv
= g_malloc0(sizeof(ParallelCharDriver
));
1574 drv
->mode
= IEEE1284_MODE_COMPAT
;
1576 chr
= g_malloc0(sizeof(CharDriverState
));
1577 chr
->chr_write
= null_chr_write
;
1578 chr
->chr_ioctl
= pp_ioctl
;
1579 chr
->chr_close
= pp_close
;
1582 qemu_chr_be_generic_open(chr
);
1586 #endif /* __linux__ */
1588 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1590 #define HAVE_CHARDEV_PARPORT 1
1592 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1594 int fd
= (int)(intptr_t)chr
->opaque
;
1598 case CHR_IOCTL_PP_READ_DATA
:
1599 if (ioctl(fd
, PPIGDATA
, &b
) < 0)
1601 *(uint8_t *)arg
= b
;
1603 case CHR_IOCTL_PP_WRITE_DATA
:
1604 b
= *(uint8_t *)arg
;
1605 if (ioctl(fd
, PPISDATA
, &b
) < 0)
1608 case CHR_IOCTL_PP_READ_CONTROL
:
1609 if (ioctl(fd
, PPIGCTRL
, &b
) < 0)
1611 *(uint8_t *)arg
= b
;
1613 case CHR_IOCTL_PP_WRITE_CONTROL
:
1614 b
= *(uint8_t *)arg
;
1615 if (ioctl(fd
, PPISCTRL
, &b
) < 0)
1618 case CHR_IOCTL_PP_READ_STATUS
:
1619 if (ioctl(fd
, PPIGSTATUS
, &b
) < 0)
1621 *(uint8_t *)arg
= b
;
1629 static CharDriverState
*qemu_chr_open_pp_fd(int fd
)
1631 CharDriverState
*chr
;
1633 chr
= g_malloc0(sizeof(CharDriverState
));
1634 chr
->opaque
= (void *)(intptr_t)fd
;
1635 chr
->chr_write
= null_chr_write
;
1636 chr
->chr_ioctl
= pp_ioctl
;
1645 HANDLE hcom
, hrecv
, hsend
;
1646 OVERLAPPED orecv
, osend
;
1653 HANDLE hInputReadyEvent
;
1654 HANDLE hInputDoneEvent
;
1655 HANDLE hInputThread
;
1656 uint8_t win_stdio_buf
;
1657 } WinStdioCharState
;
1659 #define NSENDBUF 2048
1660 #define NRECVBUF 2048
1661 #define MAXCONNECT 1
1662 #define NTIMEOUT 5000
1664 static int win_chr_poll(void *opaque
);
1665 static int win_chr_pipe_poll(void *opaque
);
1667 static void win_chr_close(CharDriverState
*chr
)
1669 WinCharState
*s
= chr
->opaque
;
1672 CloseHandle(s
->hsend
);
1676 CloseHandle(s
->hrecv
);
1680 CloseHandle(s
->hcom
);
1684 qemu_del_polling_cb(win_chr_pipe_poll
, chr
);
1686 qemu_del_polling_cb(win_chr_poll
, chr
);
1688 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1691 static int win_chr_init(CharDriverState
*chr
, const char *filename
)
1693 WinCharState
*s
= chr
->opaque
;
1695 COMMTIMEOUTS cto
= { 0, 0, 0, 0, 0};
1700 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1702 fprintf(stderr
, "Failed CreateEvent\n");
1705 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1707 fprintf(stderr
, "Failed CreateEvent\n");
1711 s
->hcom
= CreateFile(filename
, GENERIC_READ
|GENERIC_WRITE
, 0, NULL
,
1712 OPEN_EXISTING
, FILE_FLAG_OVERLAPPED
, 0);
1713 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1714 fprintf(stderr
, "Failed CreateFile (%lu)\n", GetLastError());
1719 if (!SetupComm(s
->hcom
, NRECVBUF
, NSENDBUF
)) {
1720 fprintf(stderr
, "Failed SetupComm\n");
1724 ZeroMemory(&comcfg
, sizeof(COMMCONFIG
));
1725 size
= sizeof(COMMCONFIG
);
1726 GetDefaultCommConfig(filename
, &comcfg
, &size
);
1727 comcfg
.dcb
.DCBlength
= sizeof(DCB
);
1728 CommConfigDialog(filename
, NULL
, &comcfg
);
1730 if (!SetCommState(s
->hcom
, &comcfg
.dcb
)) {
1731 fprintf(stderr
, "Failed SetCommState\n");
1735 if (!SetCommMask(s
->hcom
, EV_ERR
)) {
1736 fprintf(stderr
, "Failed SetCommMask\n");
1740 cto
.ReadIntervalTimeout
= MAXDWORD
;
1741 if (!SetCommTimeouts(s
->hcom
, &cto
)) {
1742 fprintf(stderr
, "Failed SetCommTimeouts\n");
1746 if (!ClearCommError(s
->hcom
, &err
, &comstat
)) {
1747 fprintf(stderr
, "Failed ClearCommError\n");
1750 qemu_add_polling_cb(win_chr_poll
, chr
);
1758 static int win_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len1
)
1760 WinCharState
*s
= chr
->opaque
;
1761 DWORD len
, ret
, size
, err
;
1764 ZeroMemory(&s
->osend
, sizeof(s
->osend
));
1765 s
->osend
.hEvent
= s
->hsend
;
1768 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, &s
->osend
);
1770 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, NULL
);
1772 err
= GetLastError();
1773 if (err
== ERROR_IO_PENDING
) {
1774 ret
= GetOverlappedResult(s
->hcom
, &s
->osend
, &size
, TRUE
);
1792 static int win_chr_read_poll(CharDriverState
*chr
)
1794 WinCharState
*s
= chr
->opaque
;
1796 s
->max_size
= qemu_chr_be_can_write(chr
);
1800 static void win_chr_readfile(CharDriverState
*chr
)
1802 WinCharState
*s
= chr
->opaque
;
1804 uint8_t buf
[READ_BUF_LEN
];
1807 ZeroMemory(&s
->orecv
, sizeof(s
->orecv
));
1808 s
->orecv
.hEvent
= s
->hrecv
;
1809 ret
= ReadFile(s
->hcom
, buf
, s
->len
, &size
, &s
->orecv
);
1811 err
= GetLastError();
1812 if (err
== ERROR_IO_PENDING
) {
1813 ret
= GetOverlappedResult(s
->hcom
, &s
->orecv
, &size
, TRUE
);
1818 qemu_chr_be_write(chr
, buf
, size
);
1822 static void win_chr_read(CharDriverState
*chr
)
1824 WinCharState
*s
= chr
->opaque
;
1826 if (s
->len
> s
->max_size
)
1827 s
->len
= s
->max_size
;
1831 win_chr_readfile(chr
);
1834 static int win_chr_poll(void *opaque
)
1836 CharDriverState
*chr
= opaque
;
1837 WinCharState
*s
= chr
->opaque
;
1841 ClearCommError(s
->hcom
, &comerr
, &status
);
1842 if (status
.cbInQue
> 0) {
1843 s
->len
= status
.cbInQue
;
1844 win_chr_read_poll(chr
);
1851 static CharDriverState
*qemu_chr_open_win_path(const char *filename
)
1853 CharDriverState
*chr
;
1856 chr
= g_malloc0(sizeof(CharDriverState
));
1857 s
= g_malloc0(sizeof(WinCharState
));
1859 chr
->chr_write
= win_chr_write
;
1860 chr
->chr_close
= win_chr_close
;
1862 if (win_chr_init(chr
, filename
) < 0) {
1867 qemu_chr_be_generic_open(chr
);
1871 static int win_chr_pipe_poll(void *opaque
)
1873 CharDriverState
*chr
= opaque
;
1874 WinCharState
*s
= chr
->opaque
;
1877 PeekNamedPipe(s
->hcom
, NULL
, 0, NULL
, &size
, NULL
);
1880 win_chr_read_poll(chr
);
1887 static int win_chr_pipe_init(CharDriverState
*chr
, const char *filename
)
1889 WinCharState
*s
= chr
->opaque
;
1897 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1899 fprintf(stderr
, "Failed CreateEvent\n");
1902 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1904 fprintf(stderr
, "Failed CreateEvent\n");
1908 snprintf(openname
, sizeof(openname
), "\\\\.\\pipe\\%s", filename
);
1909 s
->hcom
= CreateNamedPipe(openname
, PIPE_ACCESS_DUPLEX
| FILE_FLAG_OVERLAPPED
,
1910 PIPE_TYPE_BYTE
| PIPE_READMODE_BYTE
|
1912 MAXCONNECT
, NSENDBUF
, NRECVBUF
, NTIMEOUT
, NULL
);
1913 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1914 fprintf(stderr
, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1919 ZeroMemory(&ov
, sizeof(ov
));
1920 ov
.hEvent
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1921 ret
= ConnectNamedPipe(s
->hcom
, &ov
);
1923 fprintf(stderr
, "Failed ConnectNamedPipe\n");
1927 ret
= GetOverlappedResult(s
->hcom
, &ov
, &size
, TRUE
);
1929 fprintf(stderr
, "Failed GetOverlappedResult\n");
1931 CloseHandle(ov
.hEvent
);
1938 CloseHandle(ov
.hEvent
);
1941 qemu_add_polling_cb(win_chr_pipe_poll
, chr
);
1950 static CharDriverState
*qemu_chr_open_pipe(ChardevHostdev
*opts
)
1952 const char *filename
= opts
->device
;
1953 CharDriverState
*chr
;
1956 chr
= g_malloc0(sizeof(CharDriverState
));
1957 s
= g_malloc0(sizeof(WinCharState
));
1959 chr
->chr_write
= win_chr_write
;
1960 chr
->chr_close
= win_chr_close
;
1962 if (win_chr_pipe_init(chr
, filename
) < 0) {
1967 qemu_chr_be_generic_open(chr
);
1971 static CharDriverState
*qemu_chr_open_win_file(HANDLE fd_out
)
1973 CharDriverState
*chr
;
1976 chr
= g_malloc0(sizeof(CharDriverState
));
1977 s
= g_malloc0(sizeof(WinCharState
));
1980 chr
->chr_write
= win_chr_write
;
1981 qemu_chr_be_generic_open(chr
);
1985 static CharDriverState
*qemu_chr_open_win_con(void)
1987 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE
));
1990 static int win_stdio_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1992 HANDLE hStdOut
= GetStdHandle(STD_OUTPUT_HANDLE
);
1999 if (!WriteFile(hStdOut
, buf
, len1
, &dwSize
, NULL
)) {
2009 static void win_stdio_wait_func(void *opaque
)
2011 CharDriverState
*chr
= opaque
;
2012 WinStdioCharState
*stdio
= chr
->opaque
;
2013 INPUT_RECORD buf
[4];
2018 ret
= ReadConsoleInput(stdio
->hStdIn
, buf
, sizeof(buf
) / sizeof(*buf
),
2022 /* Avoid error storm */
2023 qemu_del_wait_object(stdio
->hStdIn
, NULL
, NULL
);
2027 for (i
= 0; i
< dwSize
; i
++) {
2028 KEY_EVENT_RECORD
*kev
= &buf
[i
].Event
.KeyEvent
;
2030 if (buf
[i
].EventType
== KEY_EVENT
&& kev
->bKeyDown
) {
2032 if (kev
->uChar
.AsciiChar
!= 0) {
2033 for (j
= 0; j
< kev
->wRepeatCount
; j
++) {
2034 if (qemu_chr_be_can_write(chr
)) {
2035 uint8_t c
= kev
->uChar
.AsciiChar
;
2036 qemu_chr_be_write(chr
, &c
, 1);
2044 static DWORD WINAPI
win_stdio_thread(LPVOID param
)
2046 CharDriverState
*chr
= param
;
2047 WinStdioCharState
*stdio
= chr
->opaque
;
2053 /* Wait for one byte */
2054 ret
= ReadFile(stdio
->hStdIn
, &stdio
->win_stdio_buf
, 1, &dwSize
, NULL
);
2056 /* Exit in case of error, continue if nothing read */
2064 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2065 if (stdio
->win_stdio_buf
== '\r') {
2069 /* Signal the main thread and wait until the byte was eaten */
2070 if (!SetEvent(stdio
->hInputReadyEvent
)) {
2073 if (WaitForSingleObject(stdio
->hInputDoneEvent
, INFINITE
)
2079 qemu_del_wait_object(stdio
->hInputReadyEvent
, NULL
, NULL
);
2083 static void win_stdio_thread_wait_func(void *opaque
)
2085 CharDriverState
*chr
= opaque
;
2086 WinStdioCharState
*stdio
= chr
->opaque
;
2088 if (qemu_chr_be_can_write(chr
)) {
2089 qemu_chr_be_write(chr
, &stdio
->win_stdio_buf
, 1);
2092 SetEvent(stdio
->hInputDoneEvent
);
2095 static void qemu_chr_set_echo_win_stdio(CharDriverState
*chr
, bool echo
)
2097 WinStdioCharState
*stdio
= chr
->opaque
;
2100 GetConsoleMode(stdio
->hStdIn
, &dwMode
);
2103 SetConsoleMode(stdio
->hStdIn
, dwMode
| ENABLE_ECHO_INPUT
);
2105 SetConsoleMode(stdio
->hStdIn
, dwMode
& ~ENABLE_ECHO_INPUT
);
2109 static void win_stdio_close(CharDriverState
*chr
)
2111 WinStdioCharState
*stdio
= chr
->opaque
;
2113 if (stdio
->hInputReadyEvent
!= INVALID_HANDLE_VALUE
) {
2114 CloseHandle(stdio
->hInputReadyEvent
);
2116 if (stdio
->hInputDoneEvent
!= INVALID_HANDLE_VALUE
) {
2117 CloseHandle(stdio
->hInputDoneEvent
);
2119 if (stdio
->hInputThread
!= INVALID_HANDLE_VALUE
) {
2120 TerminateThread(stdio
->hInputThread
, 0);
2123 g_free(chr
->opaque
);
2127 static CharDriverState
*qemu_chr_open_stdio(ChardevStdio
*opts
)
2129 CharDriverState
*chr
;
2130 WinStdioCharState
*stdio
;
2134 chr
= g_malloc0(sizeof(CharDriverState
));
2135 stdio
= g_malloc0(sizeof(WinStdioCharState
));
2137 stdio
->hStdIn
= GetStdHandle(STD_INPUT_HANDLE
);
2138 if (stdio
->hStdIn
== INVALID_HANDLE_VALUE
) {
2139 fprintf(stderr
, "cannot open stdio: invalid handle\n");
2143 is_console
= GetConsoleMode(stdio
->hStdIn
, &dwMode
) != 0;
2145 chr
->opaque
= stdio
;
2146 chr
->chr_write
= win_stdio_write
;
2147 chr
->chr_close
= win_stdio_close
;
2150 if (qemu_add_wait_object(stdio
->hStdIn
,
2151 win_stdio_wait_func
, chr
)) {
2152 fprintf(stderr
, "qemu_add_wait_object: failed\n");
2157 stdio
->hInputReadyEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
2158 stdio
->hInputDoneEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
2159 stdio
->hInputThread
= CreateThread(NULL
, 0, win_stdio_thread
,
2162 if (stdio
->hInputThread
== INVALID_HANDLE_VALUE
2163 || stdio
->hInputReadyEvent
== INVALID_HANDLE_VALUE
2164 || stdio
->hInputDoneEvent
== INVALID_HANDLE_VALUE
) {
2165 fprintf(stderr
, "cannot create stdio thread or event\n");
2168 if (qemu_add_wait_object(stdio
->hInputReadyEvent
,
2169 win_stdio_thread_wait_func
, chr
)) {
2170 fprintf(stderr
, "qemu_add_wait_object: failed\n");
2174 dwMode
|= ENABLE_LINE_INPUT
;
2177 /* set the terminal in raw mode */
2178 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2179 dwMode
|= ENABLE_PROCESSED_INPUT
;
2182 SetConsoleMode(stdio
->hStdIn
, dwMode
);
2184 chr
->chr_set_echo
= qemu_chr_set_echo_win_stdio
;
2185 qemu_chr_fe_set_echo(chr
, false);
2189 #endif /* !_WIN32 */
2192 /***********************************************************/
2193 /* UDP Net console */
2199 uint8_t buf
[READ_BUF_LEN
];
2205 static int udp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2207 NetCharDriver
*s
= chr
->opaque
;
2208 gsize bytes_written
;
2211 status
= g_io_channel_write_chars(s
->chan
, (const gchar
*)buf
, len
, &bytes_written
, NULL
);
2212 if (status
== G_IO_STATUS_EOF
) {
2214 } else if (status
!= G_IO_STATUS_NORMAL
) {
2218 return bytes_written
;
2221 static int udp_chr_read_poll(void *opaque
)
2223 CharDriverState
*chr
= opaque
;
2224 NetCharDriver
*s
= chr
->opaque
;
2226 s
->max_size
= qemu_chr_be_can_write(chr
);
2228 /* If there were any stray characters in the queue process them
2231 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2232 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2234 s
->max_size
= qemu_chr_be_can_write(chr
);
2239 static gboolean
udp_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
2241 CharDriverState
*chr
= opaque
;
2242 NetCharDriver
*s
= chr
->opaque
;
2243 gsize bytes_read
= 0;
2246 if (s
->max_size
== 0) {
2249 status
= g_io_channel_read_chars(s
->chan
, (gchar
*)s
->buf
, sizeof(s
->buf
),
2251 s
->bufcnt
= bytes_read
;
2252 s
->bufptr
= s
->bufcnt
;
2253 if (status
!= G_IO_STATUS_NORMAL
) {
2255 g_source_remove(s
->tag
);
2262 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2263 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2265 s
->max_size
= qemu_chr_be_can_write(chr
);
2271 static void udp_chr_update_read_handler(CharDriverState
*chr
)
2273 NetCharDriver
*s
= chr
->opaque
;
2276 g_source_remove(s
->tag
);
2281 s
->tag
= io_add_watch_poll(s
->chan
, udp_chr_read_poll
, udp_chr_read
, chr
);
2285 static void udp_chr_close(CharDriverState
*chr
)
2287 NetCharDriver
*s
= chr
->opaque
;
2289 g_source_remove(s
->tag
);
2293 g_io_channel_unref(s
->chan
);
2297 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2300 static CharDriverState
*qemu_chr_open_udp_fd(int fd
)
2302 CharDriverState
*chr
= NULL
;
2303 NetCharDriver
*s
= NULL
;
2305 chr
= g_malloc0(sizeof(CharDriverState
));
2306 s
= g_malloc0(sizeof(NetCharDriver
));
2309 s
->chan
= io_channel_from_socket(s
->fd
);
2313 chr
->chr_write
= udp_chr_write
;
2314 chr
->chr_update_read_handler
= udp_chr_update_read_handler
;
2315 chr
->chr_close
= udp_chr_close
;
2319 static CharDriverState
*qemu_chr_open_udp(QemuOpts
*opts
)
2321 Error
*local_err
= NULL
;
2324 fd
= inet_dgram_opts(opts
, &local_err
);
2328 return qemu_chr_open_udp_fd(fd
);
2331 /***********************************************************/
2332 /* TCP Net console */
2336 GIOChannel
*chan
, *listen_chan
;
2337 guint tag
, listen_tag
;
2347 static gboolean
tcp_chr_accept(GIOChannel
*chan
, GIOCondition cond
, void *opaque
);
2349 static int tcp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2351 TCPCharDriver
*s
= chr
->opaque
;
2353 return io_channel_send(s
->chan
, buf
, len
);
2355 /* XXX: indicate an error ? */
2360 static int tcp_chr_read_poll(void *opaque
)
2362 CharDriverState
*chr
= opaque
;
2363 TCPCharDriver
*s
= chr
->opaque
;
2366 s
->max_size
= qemu_chr_be_can_write(chr
);
2371 #define IAC_BREAK 243
2372 static void tcp_chr_process_IAC_bytes(CharDriverState
*chr
,
2374 uint8_t *buf
, int *size
)
2376 /* Handle any telnet client's basic IAC options to satisfy char by
2377 * char mode with no echo. All IAC options will be removed from
2378 * the buf and the do_telnetopt variable will be used to track the
2379 * state of the width of the IAC information.
2381 * IAC commands come in sets of 3 bytes with the exception of the
2382 * "IAC BREAK" command and the double IAC.
2388 for (i
= 0; i
< *size
; i
++) {
2389 if (s
->do_telnetopt
> 1) {
2390 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
2391 /* Double IAC means send an IAC */
2395 s
->do_telnetopt
= 1;
2397 if ((unsigned char)buf
[i
] == IAC_BREAK
&& s
->do_telnetopt
== 2) {
2398 /* Handle IAC break commands by sending a serial break */
2399 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
2404 if (s
->do_telnetopt
>= 4) {
2405 s
->do_telnetopt
= 1;
2408 if ((unsigned char)buf
[i
] == IAC
) {
2409 s
->do_telnetopt
= 2;
2420 static int tcp_get_msgfd(CharDriverState
*chr
)
2422 TCPCharDriver
*s
= chr
->opaque
;
2429 static void unix_process_msgfd(CharDriverState
*chr
, struct msghdr
*msg
)
2431 TCPCharDriver
*s
= chr
->opaque
;
2432 struct cmsghdr
*cmsg
;
2434 for (cmsg
= CMSG_FIRSTHDR(msg
); cmsg
; cmsg
= CMSG_NXTHDR(msg
, cmsg
)) {
2437 if (cmsg
->cmsg_len
!= CMSG_LEN(sizeof(int)) ||
2438 cmsg
->cmsg_level
!= SOL_SOCKET
||
2439 cmsg
->cmsg_type
!= SCM_RIGHTS
)
2442 fd
= *((int *)CMSG_DATA(cmsg
));
2446 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
2449 #ifndef MSG_CMSG_CLOEXEC
2450 qemu_set_cloexec(fd
);
2458 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2460 TCPCharDriver
*s
= chr
->opaque
;
2461 struct msghdr msg
= { NULL
, };
2462 struct iovec iov
[1];
2464 struct cmsghdr cmsg
;
2465 char control
[CMSG_SPACE(sizeof(int))];
2470 iov
[0].iov_base
= buf
;
2471 iov
[0].iov_len
= len
;
2475 msg
.msg_control
= &msg_control
;
2476 msg
.msg_controllen
= sizeof(msg_control
);
2478 #ifdef MSG_CMSG_CLOEXEC
2479 flags
|= MSG_CMSG_CLOEXEC
;
2481 ret
= recvmsg(s
->fd
, &msg
, flags
);
2482 if (ret
> 0 && s
->is_unix
) {
2483 unix_process_msgfd(chr
, &msg
);
2489 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2491 TCPCharDriver
*s
= chr
->opaque
;
2492 return qemu_recv(s
->fd
, buf
, len
, 0);
2496 static GSource
*tcp_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
2498 TCPCharDriver
*s
= chr
->opaque
;
2499 return g_io_create_watch(s
->chan
, cond
);
2502 static gboolean
tcp_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
2504 CharDriverState
*chr
= opaque
;
2505 TCPCharDriver
*s
= chr
->opaque
;
2506 uint8_t buf
[READ_BUF_LEN
];
2509 if (!s
->connected
|| s
->max_size
<= 0) {
2513 if (len
> s
->max_size
)
2515 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
2517 /* connection closed */
2519 if (s
->listen_chan
) {
2520 s
->listen_tag
= g_io_add_watch(s
->listen_chan
, G_IO_IN
, tcp_chr_accept
, chr
);
2523 g_source_remove(s
->tag
);
2526 g_io_channel_unref(s
->chan
);
2530 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2531 } else if (size
> 0) {
2532 if (s
->do_telnetopt
)
2533 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
2535 qemu_chr_be_write(chr
, buf
, size
);
2542 CharDriverState
*qemu_chr_open_eventfd(int eventfd
)
2544 return qemu_chr_open_fd(eventfd
, eventfd
);
2548 static void tcp_chr_connect(void *opaque
)
2550 CharDriverState
*chr
= opaque
;
2551 TCPCharDriver
*s
= chr
->opaque
;
2555 s
->tag
= io_add_watch_poll(s
->chan
, tcp_chr_read_poll
, tcp_chr_read
, chr
);
2557 qemu_chr_be_generic_open(chr
);
2560 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2561 static void tcp_chr_telnet_init(int fd
)
2564 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2565 IACSET(buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2566 send(fd
, (char *)buf
, 3, 0);
2567 IACSET(buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2568 send(fd
, (char *)buf
, 3, 0);
2569 IACSET(buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2570 send(fd
, (char *)buf
, 3, 0);
2571 IACSET(buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2572 send(fd
, (char *)buf
, 3, 0);
2575 static int tcp_chr_add_client(CharDriverState
*chr
, int fd
)
2577 TCPCharDriver
*s
= chr
->opaque
;
2581 qemu_set_nonblock(fd
);
2583 socket_set_nodelay(fd
);
2585 s
->chan
= io_channel_from_socket(fd
);
2586 if (s
->listen_tag
) {
2587 g_source_remove(s
->listen_tag
);
2590 tcp_chr_connect(chr
);
2595 static gboolean
tcp_chr_accept(GIOChannel
*channel
, GIOCondition cond
, void *opaque
)
2597 CharDriverState
*chr
= opaque
;
2598 TCPCharDriver
*s
= chr
->opaque
;
2599 struct sockaddr_in saddr
;
2601 struct sockaddr_un uaddr
;
2603 struct sockaddr
*addr
;
2610 len
= sizeof(uaddr
);
2611 addr
= (struct sockaddr
*)&uaddr
;
2615 len
= sizeof(saddr
);
2616 addr
= (struct sockaddr
*)&saddr
;
2618 fd
= qemu_accept(s
->listen_fd
, addr
, &len
);
2619 if (fd
< 0 && errno
!= EINTR
) {
2621 } else if (fd
>= 0) {
2622 if (s
->do_telnetopt
)
2623 tcp_chr_telnet_init(fd
);
2627 if (tcp_chr_add_client(chr
, fd
) < 0)
2633 static void tcp_chr_close(CharDriverState
*chr
)
2635 TCPCharDriver
*s
= chr
->opaque
;
2638 g_source_remove(s
->tag
);
2642 g_io_channel_unref(s
->chan
);
2646 if (s
->listen_fd
>= 0) {
2647 if (s
->listen_tag
) {
2648 g_source_remove(s
->listen_tag
);
2651 if (s
->listen_chan
) {
2652 g_io_channel_unref(s
->listen_chan
);
2654 closesocket(s
->listen_fd
);
2657 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2660 static CharDriverState
*qemu_chr_open_socket_fd(int fd
, bool do_nodelay
,
2661 bool is_listen
, bool is_telnet
,
2662 bool is_waitconnect
,
2665 CharDriverState
*chr
= NULL
;
2666 TCPCharDriver
*s
= NULL
;
2667 char host
[NI_MAXHOST
], serv
[NI_MAXSERV
];
2668 const char *left
= "", *right
= "";
2669 struct sockaddr_storage ss
;
2670 socklen_t ss_len
= sizeof(ss
);
2672 memset(&ss
, 0, ss_len
);
2673 if (getsockname(fd
, (struct sockaddr
*) &ss
, &ss_len
) != 0) {
2674 error_setg(errp
, "getsockname: %s", strerror(errno
));
2678 chr
= g_malloc0(sizeof(CharDriverState
));
2679 s
= g_malloc0(sizeof(TCPCharDriver
));
2686 chr
->filename
= g_malloc(256);
2687 switch (ss
.ss_family
) {
2691 snprintf(chr
->filename
, 256, "unix:%s%s",
2692 ((struct sockaddr_un
*)(&ss
))->sun_path
,
2693 is_listen
? ",server" : "");
2701 s
->do_nodelay
= do_nodelay
;
2702 getnameinfo((struct sockaddr
*) &ss
, ss_len
, host
, sizeof(host
),
2703 serv
, sizeof(serv
), NI_NUMERICHOST
| NI_NUMERICSERV
);
2704 snprintf(chr
->filename
, 256, "%s:%s%s%s:%s%s",
2705 is_telnet
? "telnet" : "tcp",
2706 left
, host
, right
, serv
,
2707 is_listen
? ",server" : "");
2712 chr
->chr_write
= tcp_chr_write
;
2713 chr
->chr_close
= tcp_chr_close
;
2714 chr
->get_msgfd
= tcp_get_msgfd
;
2715 chr
->chr_add_client
= tcp_chr_add_client
;
2716 chr
->chr_add_watch
= tcp_chr_add_watch
;
2720 s
->listen_chan
= io_channel_from_socket(s
->listen_fd
);
2721 s
->listen_tag
= g_io_add_watch(s
->listen_chan
, G_IO_IN
, tcp_chr_accept
, chr
);
2723 s
->do_telnetopt
= 1;
2728 socket_set_nodelay(fd
);
2729 s
->chan
= io_channel_from_socket(s
->fd
);
2730 tcp_chr_connect(chr
);
2733 if (is_listen
&& is_waitconnect
) {
2734 printf("QEMU waiting for connection on: %s\n",
2736 tcp_chr_accept(s
->listen_chan
, G_IO_IN
, chr
);
2737 qemu_set_nonblock(s
->listen_fd
);
2742 static CharDriverState
*qemu_chr_open_socket(QemuOpts
*opts
)
2744 CharDriverState
*chr
= NULL
;
2745 Error
*local_err
= NULL
;
2753 is_listen
= qemu_opt_get_bool(opts
, "server", 0);
2754 is_waitconnect
= qemu_opt_get_bool(opts
, "wait", 1);
2755 is_telnet
= qemu_opt_get_bool(opts
, "telnet", 0);
2756 do_nodelay
= !qemu_opt_get_bool(opts
, "delay", 1);
2757 is_unix
= qemu_opt_get(opts
, "path") != NULL
;
2763 fd
= unix_listen_opts(opts
, &local_err
);
2765 fd
= unix_connect_opts(opts
, &local_err
, NULL
, NULL
);
2769 fd
= inet_listen_opts(opts
, 0, &local_err
);
2771 fd
= inet_connect_opts(opts
, &local_err
, NULL
, NULL
);
2778 if (!is_waitconnect
)
2779 qemu_set_nonblock(fd
);
2781 chr
= qemu_chr_open_socket_fd(fd
, do_nodelay
, is_listen
, is_telnet
,
2782 is_waitconnect
, &local_err
);
2783 if (error_is_set(&local_err
)) {
2791 qerror_report_err(local_err
);
2792 error_free(local_err
);
2798 g_free(chr
->opaque
);
2804 /*********************************************************/
2805 /* Ring buffer chardev */
2812 } RingBufCharDriver
;
2814 static size_t ringbuf_count(const CharDriverState
*chr
)
2816 const RingBufCharDriver
*d
= chr
->opaque
;
2818 return d
->prod
- d
->cons
;
2821 static int ringbuf_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2823 RingBufCharDriver
*d
= chr
->opaque
;
2826 if (!buf
|| (len
< 0)) {
2830 for (i
= 0; i
< len
; i
++ ) {
2831 d
->cbuf
[d
->prod
++ & (d
->size
- 1)] = buf
[i
];
2832 if (d
->prod
- d
->cons
> d
->size
) {
2833 d
->cons
= d
->prod
- d
->size
;
2840 static int ringbuf_chr_read(CharDriverState
*chr
, uint8_t *buf
, int len
)
2842 RingBufCharDriver
*d
= chr
->opaque
;
2845 for (i
= 0; i
< len
&& d
->cons
!= d
->prod
; i
++) {
2846 buf
[i
] = d
->cbuf
[d
->cons
++ & (d
->size
- 1)];
2852 static void ringbuf_chr_close(struct CharDriverState
*chr
)
2854 RingBufCharDriver
*d
= chr
->opaque
;
2861 static CharDriverState
*qemu_chr_open_ringbuf(ChardevRingbuf
*opts
,
2864 CharDriverState
*chr
;
2865 RingBufCharDriver
*d
;
2867 chr
= g_malloc0(sizeof(CharDriverState
));
2868 d
= g_malloc(sizeof(*d
));
2870 d
->size
= opts
->has_size
? opts
->size
: 65536;
2872 /* The size must be power of 2 */
2873 if (d
->size
& (d
->size
- 1)) {
2874 error_setg(errp
, "size of ringbuf chardev must be power of two");
2880 d
->cbuf
= g_malloc0(d
->size
);
2883 chr
->chr_write
= ringbuf_chr_write
;
2884 chr
->chr_close
= ringbuf_chr_close
;
2894 static bool chr_is_ringbuf(const CharDriverState
*chr
)
2896 return chr
->chr_write
== ringbuf_chr_write
;
2899 void qmp_ringbuf_write(const char *device
, const char *data
,
2900 bool has_format
, enum DataFormat format
,
2903 CharDriverState
*chr
;
2904 const uint8_t *write_data
;
2908 chr
= qemu_chr_find(device
);
2910 error_setg(errp
, "Device '%s' not found", device
);
2914 if (!chr_is_ringbuf(chr
)) {
2915 error_setg(errp
,"%s is not a ringbuf device", device
);
2919 if (has_format
&& (format
== DATA_FORMAT_BASE64
)) {
2920 write_data
= g_base64_decode(data
, &write_count
);
2922 write_data
= (uint8_t *)data
;
2923 write_count
= strlen(data
);
2926 ret
= ringbuf_chr_write(chr
, write_data
, write_count
);
2928 if (write_data
!= (uint8_t *)data
) {
2929 g_free((void *)write_data
);
2933 error_setg(errp
, "Failed to write to device %s", device
);
2938 char *qmp_ringbuf_read(const char *device
, int64_t size
,
2939 bool has_format
, enum DataFormat format
,
2942 CharDriverState
*chr
;
2947 chr
= qemu_chr_find(device
);
2949 error_setg(errp
, "Device '%s' not found", device
);
2953 if (!chr_is_ringbuf(chr
)) {
2954 error_setg(errp
,"%s is not a ringbuf device", device
);
2959 error_setg(errp
, "size must be greater than zero");
2963 count
= ringbuf_count(chr
);
2964 size
= size
> count
? count
: size
;
2965 read_data
= g_malloc(size
+ 1);
2967 ringbuf_chr_read(chr
, read_data
, size
);
2969 if (has_format
&& (format
== DATA_FORMAT_BASE64
)) {
2970 data
= g_base64_encode(read_data
, size
);
2974 * FIXME should read only complete, valid UTF-8 characters up
2975 * to @size bytes. Invalid sequences should be replaced by a
2976 * suitable replacement character. Except when (and only
2977 * when) ring buffer lost characters since last read, initial
2978 * continuation characters should be dropped.
2980 read_data
[size
] = 0;
2981 data
= (char *)read_data
;
2987 QemuOpts
*qemu_chr_parse_compat(const char *label
, const char *filename
)
2989 char host
[65], port
[33], width
[8], height
[8];
2993 Error
*local_err
= NULL
;
2995 opts
= qemu_opts_create(qemu_find_opts("chardev"), label
, 1, &local_err
);
2996 if (error_is_set(&local_err
)) {
2997 qerror_report_err(local_err
);
2998 error_free(local_err
);
3002 if (strstart(filename
, "mon:", &p
)) {
3004 qemu_opt_set(opts
, "mux", "on");
3007 if (strcmp(filename
, "null") == 0 ||
3008 strcmp(filename
, "pty") == 0 ||
3009 strcmp(filename
, "msmouse") == 0 ||
3010 strcmp(filename
, "braille") == 0 ||
3011 strcmp(filename
, "stdio") == 0) {
3012 qemu_opt_set(opts
, "backend", filename
);
3015 if (strstart(filename
, "vc", &p
)) {
3016 qemu_opt_set(opts
, "backend", "vc");
3018 if (sscanf(p
+1, "%8[0-9]x%8[0-9]", width
, height
) == 2) {
3020 qemu_opt_set(opts
, "width", width
);
3021 qemu_opt_set(opts
, "height", height
);
3022 } else if (sscanf(p
+1, "%8[0-9]Cx%8[0-9]C", width
, height
) == 2) {
3024 qemu_opt_set(opts
, "cols", width
);
3025 qemu_opt_set(opts
, "rows", height
);
3032 if (strcmp(filename
, "con:") == 0) {
3033 qemu_opt_set(opts
, "backend", "console");
3036 if (strstart(filename
, "COM", NULL
)) {
3037 qemu_opt_set(opts
, "backend", "serial");
3038 qemu_opt_set(opts
, "path", filename
);
3041 if (strstart(filename
, "file:", &p
)) {
3042 qemu_opt_set(opts
, "backend", "file");
3043 qemu_opt_set(opts
, "path", p
);
3046 if (strstart(filename
, "pipe:", &p
)) {
3047 qemu_opt_set(opts
, "backend", "pipe");
3048 qemu_opt_set(opts
, "path", p
);
3051 if (strstart(filename
, "tcp:", &p
) ||
3052 strstart(filename
, "telnet:", &p
)) {
3053 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
3055 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1)
3058 qemu_opt_set(opts
, "backend", "socket");
3059 qemu_opt_set(opts
, "host", host
);
3060 qemu_opt_set(opts
, "port", port
);
3061 if (p
[pos
] == ',') {
3062 if (qemu_opts_do_parse(opts
, p
+pos
+1, NULL
) != 0)
3065 if (strstart(filename
, "telnet:", &p
))
3066 qemu_opt_set(opts
, "telnet", "on");
3069 if (strstart(filename
, "udp:", &p
)) {
3070 qemu_opt_set(opts
, "backend", "udp");
3071 if (sscanf(p
, "%64[^:]:%32[^@,]%n", host
, port
, &pos
) < 2) {
3073 if (sscanf(p
, ":%32[^@,]%n", port
, &pos
) < 1) {
3077 qemu_opt_set(opts
, "host", host
);
3078 qemu_opt_set(opts
, "port", port
);
3079 if (p
[pos
] == '@') {
3081 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
3083 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
3087 qemu_opt_set(opts
, "localaddr", host
);
3088 qemu_opt_set(opts
, "localport", port
);
3092 if (strstart(filename
, "unix:", &p
)) {
3093 qemu_opt_set(opts
, "backend", "socket");
3094 if (qemu_opts_do_parse(opts
, p
, "path") != 0)
3098 if (strstart(filename
, "/dev/parport", NULL
) ||
3099 strstart(filename
, "/dev/ppi", NULL
)) {
3100 qemu_opt_set(opts
, "backend", "parport");
3101 qemu_opt_set(opts
, "path", filename
);
3104 if (strstart(filename
, "/dev/", NULL
)) {
3105 qemu_opt_set(opts
, "backend", "tty");
3106 qemu_opt_set(opts
, "path", filename
);
3111 qemu_opts_del(opts
);
3115 static void qemu_chr_parse_file_out(QemuOpts
*opts
, ChardevBackend
*backend
,
3118 const char *path
= qemu_opt_get(opts
, "path");
3121 error_setg(errp
, "chardev: file: no filename given");
3124 backend
->file
= g_new0(ChardevFile
, 1);
3125 backend
->file
->out
= g_strdup(path
);
3128 static void qemu_chr_parse_stdio(QemuOpts
*opts
, ChardevBackend
*backend
,
3131 backend
->stdio
= g_new0(ChardevStdio
, 1);
3132 backend
->stdio
->has_signal
= true;
3133 backend
->stdio
->signal
=
3134 qemu_opt_get_bool(opts
, "signal", display_type
!= DT_NOGRAPHIC
);
3137 static void qemu_chr_parse_serial(QemuOpts
*opts
, ChardevBackend
*backend
,
3140 const char *device
= qemu_opt_get(opts
, "path");
3142 if (device
== NULL
) {
3143 error_setg(errp
, "chardev: serial/tty: no device path given");
3146 backend
->serial
= g_new0(ChardevHostdev
, 1);
3147 backend
->serial
->device
= g_strdup(device
);
3150 static void qemu_chr_parse_parallel(QemuOpts
*opts
, ChardevBackend
*backend
,
3153 const char *device
= qemu_opt_get(opts
, "path");
3155 if (device
== NULL
) {
3156 error_setg(errp
, "chardev: parallel: no device path given");
3159 backend
->parallel
= g_new0(ChardevHostdev
, 1);
3160 backend
->parallel
->device
= g_strdup(device
);
3163 static void qemu_chr_parse_pipe(QemuOpts
*opts
, ChardevBackend
*backend
,
3166 const char *device
= qemu_opt_get(opts
, "path");
3168 if (device
== NULL
) {
3169 error_setg(errp
, "chardev: pipe: no device path given");
3172 backend
->pipe
= g_new0(ChardevHostdev
, 1);
3173 backend
->pipe
->device
= g_strdup(device
);
3176 static void qemu_chr_parse_ringbuf(QemuOpts
*opts
, ChardevBackend
*backend
,
3181 backend
->memory
= g_new0(ChardevRingbuf
, 1);
3183 val
= qemu_opt_get_number(opts
, "size", 0);
3185 backend
->memory
->has_size
= true;
3186 backend
->memory
->size
= val
;
3190 typedef struct CharDriver
{
3193 CharDriverState
*(*open
)(QemuOpts
*opts
);
3194 /* new, qapi-based */
3196 void (*parse
)(QemuOpts
*opts
, ChardevBackend
*backend
, Error
**errp
);
3199 static GSList
*backends
;
3201 void register_char_driver(const char *name
, CharDriverState
*(*open
)(QemuOpts
*))
3205 s
= g_malloc0(sizeof(*s
));
3206 s
->name
= g_strdup(name
);
3209 backends
= g_slist_append(backends
, s
);
3212 void register_char_driver_qapi(const char *name
, int kind
,
3213 void (*parse
)(QemuOpts
*opts
, ChardevBackend
*backend
, Error
**errp
))
3217 s
= g_malloc0(sizeof(*s
));
3218 s
->name
= g_strdup(name
);
3222 backends
= g_slist_append(backends
, s
);
3225 CharDriverState
*qemu_chr_new_from_opts(QemuOpts
*opts
,
3226 void (*init
)(struct CharDriverState
*s
),
3230 CharDriverState
*chr
;
3233 if (qemu_opts_id(opts
) == NULL
) {
3234 error_setg(errp
, "chardev: no id specified");
3238 if (qemu_opt_get(opts
, "backend") == NULL
) {
3239 error_setg(errp
, "chardev: \"%s\" missing backend",
3240 qemu_opts_id(opts
));
3243 for (i
= backends
; i
; i
= i
->next
) {
3246 if (strcmp(cd
->name
, qemu_opt_get(opts
, "backend")) == 0) {
3251 error_setg(errp
, "chardev: backend \"%s\" not found",
3252 qemu_opt_get(opts
, "backend"));
3257 /* using new, qapi init */
3258 ChardevBackend
*backend
= g_new0(ChardevBackend
, 1);
3259 ChardevReturn
*ret
= NULL
;
3260 const char *id
= qemu_opts_id(opts
);
3261 const char *bid
= NULL
;
3263 if (qemu_opt_get_bool(opts
, "mux", 0)) {
3264 bid
= g_strdup_printf("%s-base", id
);
3268 backend
->kind
= cd
->kind
;
3270 cd
->parse(opts
, backend
, errp
);
3271 if (error_is_set(errp
)) {
3275 ret
= qmp_chardev_add(bid
? bid
: id
, backend
, errp
);
3276 if (error_is_set(errp
)) {
3281 qapi_free_ChardevBackend(backend
);
3282 qapi_free_ChardevReturn(ret
);
3283 backend
= g_new0(ChardevBackend
, 1);
3284 backend
->mux
= g_new0(ChardevMux
, 1);
3285 backend
->kind
= CHARDEV_BACKEND_KIND_MUX
;
3286 backend
->mux
->chardev
= g_strdup(bid
);
3287 ret
= qmp_chardev_add(id
, backend
, errp
);
3288 if (error_is_set(errp
)) {
3293 chr
= qemu_chr_find(id
);
3296 qapi_free_ChardevBackend(backend
);
3297 qapi_free_ChardevReturn(ret
);
3301 chr
= cd
->open(opts
);
3303 error_setg(errp
, "chardev: opening backend \"%s\" failed",
3304 qemu_opt_get(opts
, "backend"));
3309 chr
->filename
= g_strdup(qemu_opt_get(opts
, "backend"));
3311 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3313 if (qemu_opt_get_bool(opts
, "mux", 0)) {
3314 CharDriverState
*base
= chr
;
3315 int len
= strlen(qemu_opts_id(opts
)) + 6;
3316 base
->label
= g_malloc(len
);
3317 snprintf(base
->label
, len
, "%s-base", qemu_opts_id(opts
));
3318 chr
= qemu_chr_open_mux(base
);
3319 chr
->filename
= base
->filename
;
3320 chr
->avail_connections
= MAX_MUX
;
3321 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3323 chr
->avail_connections
= 1;
3325 chr
->label
= g_strdup(qemu_opts_id(opts
));
3330 qemu_opts_del(opts
);
3334 CharDriverState
*qemu_chr_new(const char *label
, const char *filename
, void (*init
)(struct CharDriverState
*s
))
3337 CharDriverState
*chr
;
3341 if (strstart(filename
, "chardev:", &p
)) {
3342 return qemu_chr_find(p
);
3345 opts
= qemu_chr_parse_compat(label
, filename
);
3349 chr
= qemu_chr_new_from_opts(opts
, init
, &err
);
3350 if (error_is_set(&err
)) {
3351 fprintf(stderr
, "%s\n", error_get_pretty(err
));
3354 if (chr
&& qemu_opt_get_bool(opts
, "mux", 0)) {
3355 qemu_chr_fe_claim_no_fail(chr
);
3356 monitor_init(chr
, MONITOR_USE_READLINE
);
3361 void qemu_chr_fe_set_echo(struct CharDriverState
*chr
, bool echo
)
3363 if (chr
->chr_set_echo
) {
3364 chr
->chr_set_echo(chr
, echo
);
3368 void qemu_chr_fe_set_open(struct CharDriverState
*chr
, int fe_open
)
3370 if (chr
->fe_open
== fe_open
) {
3373 chr
->fe_open
= fe_open
;
3374 if (chr
->chr_set_fe_open
) {
3375 chr
->chr_set_fe_open(chr
, fe_open
);
3379 int qemu_chr_fe_add_watch(CharDriverState
*s
, GIOCondition cond
,
3380 GIOFunc func
, void *user_data
)
3385 if (s
->chr_add_watch
== NULL
) {
3389 src
= s
->chr_add_watch(s
, cond
);
3390 g_source_set_callback(src
, (GSourceFunc
)func
, user_data
, NULL
);
3391 tag
= g_source_attach(src
, NULL
);
3392 g_source_unref(src
);
3397 int qemu_chr_fe_claim(CharDriverState
*s
)
3399 if (s
->avail_connections
< 1) {
3402 s
->avail_connections
--;
3406 void qemu_chr_fe_claim_no_fail(CharDriverState
*s
)
3408 if (qemu_chr_fe_claim(s
) != 0) {
3409 fprintf(stderr
, "%s: error chardev \"%s\" already used\n",
3410 __func__
, s
->label
);
3415 void qemu_chr_fe_release(CharDriverState
*s
)
3417 s
->avail_connections
++;
3420 void qemu_chr_delete(CharDriverState
*chr
)
3422 QTAILQ_REMOVE(&chardevs
, chr
, next
);
3423 if (chr
->chr_close
) {
3424 chr
->chr_close(chr
);
3426 g_free(chr
->filename
);
3429 qemu_opts_del(chr
->opts
);
3434 ChardevInfoList
*qmp_query_chardev(Error
**errp
)
3436 ChardevInfoList
*chr_list
= NULL
;
3437 CharDriverState
*chr
;
3439 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
3440 ChardevInfoList
*info
= g_malloc0(sizeof(*info
));
3441 info
->value
= g_malloc0(sizeof(*info
->value
));
3442 info
->value
->label
= g_strdup(chr
->label
);
3443 info
->value
->filename
= g_strdup(chr
->filename
);
3445 info
->next
= chr_list
;
3452 CharDriverState
*qemu_chr_find(const char *name
)
3454 CharDriverState
*chr
;
3456 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
3457 if (strcmp(chr
->label
, name
) != 0)
3464 /* Get a character (serial) device interface. */
3465 CharDriverState
*qemu_char_get_next_serial(void)
3467 static int next_serial
;
3468 CharDriverState
*chr
;
3470 /* FIXME: This function needs to go away: use chardev properties! */
3472 while (next_serial
< MAX_SERIAL_PORTS
&& serial_hds
[next_serial
]) {
3473 chr
= serial_hds
[next_serial
++];
3474 qemu_chr_fe_claim_no_fail(chr
);
3480 QemuOptsList qemu_chardev_opts
= {
3482 .implied_opt_name
= "backend",
3483 .head
= QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts
.head
),
3487 .type
= QEMU_OPT_STRING
,
3490 .type
= QEMU_OPT_STRING
,
3493 .type
= QEMU_OPT_STRING
,
3496 .type
= QEMU_OPT_STRING
,
3498 .name
= "localaddr",
3499 .type
= QEMU_OPT_STRING
,
3501 .name
= "localport",
3502 .type
= QEMU_OPT_STRING
,
3505 .type
= QEMU_OPT_NUMBER
,
3508 .type
= QEMU_OPT_BOOL
,
3511 .type
= QEMU_OPT_BOOL
,
3514 .type
= QEMU_OPT_BOOL
,
3517 .type
= QEMU_OPT_BOOL
,
3520 .type
= QEMU_OPT_BOOL
,
3523 .type
= QEMU_OPT_BOOL
,
3526 .type
= QEMU_OPT_NUMBER
,
3529 .type
= QEMU_OPT_NUMBER
,
3532 .type
= QEMU_OPT_NUMBER
,
3535 .type
= QEMU_OPT_NUMBER
,
3538 .type
= QEMU_OPT_BOOL
,
3541 .type
= QEMU_OPT_BOOL
,
3544 .type
= QEMU_OPT_STRING
,
3547 .type
= QEMU_OPT_NUMBER
,
3550 .type
= QEMU_OPT_SIZE
,
3552 { /* end of list */ }
3558 static CharDriverState
*qmp_chardev_open_file(ChardevFile
*file
, Error
**errp
)
3563 error_setg(errp
, "input file not supported");
3567 out
= CreateFile(file
->out
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
3568 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
3569 if (out
== INVALID_HANDLE_VALUE
) {
3570 error_setg(errp
, "open %s failed", file
->out
);
3573 return qemu_chr_open_win_file(out
);
3576 static CharDriverState
*qmp_chardev_open_serial(ChardevHostdev
*serial
,
3579 return qemu_chr_open_win_path(serial
->device
);
3582 static CharDriverState
*qmp_chardev_open_parallel(ChardevHostdev
*parallel
,
3585 error_setg(errp
, "character device backend type 'parallel' not supported");
3591 static int qmp_chardev_open_file_source(char *src
, int flags
,
3596 TFR(fd
= qemu_open(src
, flags
, 0666));
3598 error_setg(errp
, "open %s: %s", src
, strerror(errno
));
3603 static CharDriverState
*qmp_chardev_open_file(ChardevFile
*file
, Error
**errp
)
3605 int flags
, in
= -1, out
= -1;
3607 flags
= O_WRONLY
| O_TRUNC
| O_CREAT
| O_BINARY
;
3608 out
= qmp_chardev_open_file_source(file
->out
, flags
, errp
);
3609 if (error_is_set(errp
)) {
3615 in
= qmp_chardev_open_file_source(file
->in
, flags
, errp
);
3616 if (error_is_set(errp
)) {
3622 return qemu_chr_open_fd(in
, out
);
3625 static CharDriverState
*qmp_chardev_open_serial(ChardevHostdev
*serial
,
3628 #ifdef HAVE_CHARDEV_TTY
3631 fd
= qmp_chardev_open_file_source(serial
->device
, O_RDWR
, errp
);
3632 if (error_is_set(errp
)) {
3635 qemu_set_nonblock(fd
);
3636 return qemu_chr_open_tty_fd(fd
);
3638 error_setg(errp
, "character device backend type 'serial' not supported");
3643 static CharDriverState
*qmp_chardev_open_parallel(ChardevHostdev
*parallel
,
3646 #ifdef HAVE_CHARDEV_PARPORT
3649 fd
= qmp_chardev_open_file_source(parallel
->device
, O_RDWR
, errp
);
3650 if (error_is_set(errp
)) {
3653 return qemu_chr_open_pp_fd(fd
);
3655 error_setg(errp
, "character device backend type 'parallel' not supported");
3662 static CharDriverState
*qmp_chardev_open_socket(ChardevSocket
*sock
,
3665 SocketAddress
*addr
= sock
->addr
;
3666 bool do_nodelay
= sock
->has_nodelay
? sock
->nodelay
: false;
3667 bool is_listen
= sock
->has_server
? sock
->server
: true;
3668 bool is_telnet
= sock
->has_telnet
? sock
->telnet
: false;
3669 bool is_waitconnect
= sock
->has_wait
? sock
->wait
: false;
3673 fd
= socket_listen(addr
, errp
);
3675 fd
= socket_connect(addr
, errp
, NULL
, NULL
);
3677 if (error_is_set(errp
)) {
3680 return qemu_chr_open_socket_fd(fd
, do_nodelay
, is_listen
,
3681 is_telnet
, is_waitconnect
, errp
);
3684 static CharDriverState
*qmp_chardev_open_dgram(ChardevDgram
*dgram
,
3689 fd
= socket_dgram(dgram
->remote
, dgram
->local
, errp
);
3690 if (error_is_set(errp
)) {
3693 return qemu_chr_open_udp_fd(fd
);
3696 ChardevReturn
*qmp_chardev_add(const char *id
, ChardevBackend
*backend
,
3699 ChardevReturn
*ret
= g_new0(ChardevReturn
, 1);
3700 CharDriverState
*base
, *chr
= NULL
;
3702 chr
= qemu_chr_find(id
);
3704 error_setg(errp
, "Chardev '%s' already exists", id
);
3709 switch (backend
->kind
) {
3710 case CHARDEV_BACKEND_KIND_FILE
:
3711 chr
= qmp_chardev_open_file(backend
->file
, errp
);
3713 case CHARDEV_BACKEND_KIND_SERIAL
:
3714 chr
= qmp_chardev_open_serial(backend
->serial
, errp
);
3716 case CHARDEV_BACKEND_KIND_PARALLEL
:
3717 chr
= qmp_chardev_open_parallel(backend
->parallel
, errp
);
3719 case CHARDEV_BACKEND_KIND_PIPE
:
3720 chr
= qemu_chr_open_pipe(backend
->pipe
);
3722 case CHARDEV_BACKEND_KIND_SOCKET
:
3723 chr
= qmp_chardev_open_socket(backend
->socket
, errp
);
3725 case CHARDEV_BACKEND_KIND_DGRAM
:
3726 chr
= qmp_chardev_open_dgram(backend
->dgram
, errp
);
3728 #ifdef HAVE_CHARDEV_TTY
3729 case CHARDEV_BACKEND_KIND_PTY
:
3730 chr
= qemu_chr_open_pty(id
, ret
);
3733 case CHARDEV_BACKEND_KIND_NULL
:
3734 chr
= qemu_chr_open_null();
3736 case CHARDEV_BACKEND_KIND_MUX
:
3737 base
= qemu_chr_find(backend
->mux
->chardev
);
3739 error_setg(errp
, "mux: base chardev %s not found",
3740 backend
->mux
->chardev
);
3743 chr
= qemu_chr_open_mux(base
);
3745 case CHARDEV_BACKEND_KIND_MSMOUSE
:
3746 chr
= qemu_chr_open_msmouse();
3748 #ifdef CONFIG_BRLAPI
3749 case CHARDEV_BACKEND_KIND_BRAILLE
:
3750 chr
= chr_baum_init();
3753 case CHARDEV_BACKEND_KIND_STDIO
:
3754 chr
= qemu_chr_open_stdio(backend
->stdio
);
3757 case CHARDEV_BACKEND_KIND_CONSOLE
:
3758 chr
= qemu_chr_open_win_con();
3762 case CHARDEV_BACKEND_KIND_SPICEVMC
:
3763 chr
= qemu_chr_open_spice_vmc(backend
->spicevmc
->type
);
3765 case CHARDEV_BACKEND_KIND_SPICEPORT
:
3766 chr
= qemu_chr_open_spice_port(backend
->spiceport
->fqdn
);
3769 case CHARDEV_BACKEND_KIND_VC
:
3770 chr
= vc_init(backend
->vc
);
3772 case CHARDEV_BACKEND_KIND_MEMORY
:
3773 chr
= qemu_chr_open_ringbuf(backend
->memory
, errp
);
3776 error_setg(errp
, "unknown chardev backend (%d)", backend
->kind
);
3780 if (chr
== NULL
&& !error_is_set(errp
)) {
3781 error_setg(errp
, "Failed to create chardev");
3784 chr
->label
= g_strdup(id
);
3785 chr
->avail_connections
=
3786 (backend
->kind
== CHARDEV_BACKEND_KIND_MUX
) ? MAX_MUX
: 1;
3787 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3795 void qmp_chardev_remove(const char *id
, Error
**errp
)
3797 CharDriverState
*chr
;
3799 chr
= qemu_chr_find(id
);
3801 error_setg(errp
, "Chardev '%s' not found", id
);
3804 if (chr
->chr_can_read
|| chr
->chr_read
||
3805 chr
->chr_event
|| chr
->handler_opaque
) {
3806 error_setg(errp
, "Chardev '%s' is busy", id
);
3809 qemu_chr_delete(chr
);
3812 static void register_types(void)
3814 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL
, NULL
);
3815 register_char_driver("socket", qemu_chr_open_socket
);
3816 register_char_driver("udp", qemu_chr_open_udp
);
3817 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY
,
3818 qemu_chr_parse_ringbuf
);
3819 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE
,
3820 qemu_chr_parse_file_out
);
3821 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO
,
3822 qemu_chr_parse_stdio
);
3823 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL
,
3824 qemu_chr_parse_serial
);
3825 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL
,
3826 qemu_chr_parse_serial
);
3827 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL
,
3828 qemu_chr_parse_parallel
);
3829 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL
,
3830 qemu_chr_parse_parallel
);
3831 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY
, NULL
);
3832 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE
, NULL
);
3833 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE
,
3834 qemu_chr_parse_pipe
);
3837 type_init(register_types
);