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_generic_open_bh(gpointer opaque
)
125 CharDriverState
*s
= opaque
;
126 qemu_chr_be_event(s
, CHR_EVENT_OPENED
);
131 void qemu_chr_generic_open(CharDriverState
*s
)
133 if (s
->idle_tag
== 0) {
134 s
->idle_tag
= g_idle_add(qemu_chr_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
,
224 if (!opaque
&& !fd_can_read
&& !fd_read
&& !fd_event
) {
225 /* chr driver being released. */
226 ++s
->avail_connections
;
228 s
->chr_can_read
= fd_can_read
;
229 s
->chr_read
= fd_read
;
230 s
->chr_event
= fd_event
;
231 s
->handler_opaque
= opaque
;
232 if (s
->chr_update_read_handler
)
233 s
->chr_update_read_handler(s
);
235 /* We're connecting to an already opened device, so let's make sure we
236 also get the open event */
238 qemu_chr_generic_open(s
);
242 static int null_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
247 static CharDriverState
*qemu_chr_open_null(void)
249 CharDriverState
*chr
;
251 chr
= g_malloc0(sizeof(CharDriverState
));
252 chr
->chr_write
= null_chr_write
;
256 /* MUX driver for serial I/O splitting */
258 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
259 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
261 IOCanReadHandler
*chr_can_read
[MAX_MUX
];
262 IOReadHandler
*chr_read
[MAX_MUX
];
263 IOEventHandler
*chr_event
[MAX_MUX
];
264 void *ext_opaque
[MAX_MUX
];
265 CharDriverState
*drv
;
270 /* Intermediate input buffer allows to catch escape sequences even if the
271 currently active device is not accepting any input - but only until it
273 unsigned char buffer
[MAX_MUX
][MUX_BUFFER_SIZE
];
278 int64_t timestamps_start
;
282 static int mux_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
284 MuxDriver
*d
= chr
->opaque
;
286 if (!d
->timestamps
) {
287 ret
= d
->drv
->chr_write(d
->drv
, buf
, len
);
292 for (i
= 0; i
< len
; i
++) {
298 ti
= qemu_get_clock_ms(rt_clock
);
299 if (d
->timestamps_start
== -1)
300 d
->timestamps_start
= ti
;
301 ti
-= d
->timestamps_start
;
303 snprintf(buf1
, sizeof(buf1
),
304 "[%02d:%02d:%02d.%03d] ",
309 d
->drv
->chr_write(d
->drv
, (uint8_t *)buf1
, strlen(buf1
));
312 ret
+= d
->drv
->chr_write(d
->drv
, buf
+i
, 1);
313 if (buf
[i
] == '\n') {
321 static const char * const mux_help
[] = {
322 "% h print this help\n\r",
323 "% x exit emulator\n\r",
324 "% s save disk data back to file (if -snapshot)\n\r",
325 "% t toggle console timestamps\n\r"
326 "% b send break (magic sysrq)\n\r",
327 "% c switch between console and monitor\n\r",
332 int term_escape_char
= 0x01; /* ctrl-a is used for escape */
333 static void mux_print_help(CharDriverState
*chr
)
336 char ebuf
[15] = "Escape-Char";
337 char cbuf
[50] = "\n\r";
339 if (term_escape_char
> 0 && term_escape_char
< 26) {
340 snprintf(cbuf
, sizeof(cbuf
), "\n\r");
341 snprintf(ebuf
, sizeof(ebuf
), "C-%c", term_escape_char
- 1 + 'a');
343 snprintf(cbuf
, sizeof(cbuf
),
344 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
347 chr
->chr_write(chr
, (uint8_t *)cbuf
, strlen(cbuf
));
348 for (i
= 0; mux_help
[i
] != NULL
; i
++) {
349 for (j
=0; mux_help
[i
][j
] != '\0'; j
++) {
350 if (mux_help
[i
][j
] == '%')
351 chr
->chr_write(chr
, (uint8_t *)ebuf
, strlen(ebuf
));
353 chr
->chr_write(chr
, (uint8_t *)&mux_help
[i
][j
], 1);
358 static void mux_chr_send_event(MuxDriver
*d
, int mux_nr
, int event
)
360 if (d
->chr_event
[mux_nr
])
361 d
->chr_event
[mux_nr
](d
->ext_opaque
[mux_nr
], event
);
364 static int mux_proc_byte(CharDriverState
*chr
, MuxDriver
*d
, int ch
)
366 if (d
->term_got_escape
) {
367 d
->term_got_escape
= 0;
368 if (ch
== term_escape_char
)
377 const char *term
= "QEMU: Terminated\n\r";
378 chr
->chr_write(chr
,(uint8_t *)term
,strlen(term
));
386 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
389 /* Switch to the next registered device */
390 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
392 if (d
->focus
>= d
->mux_cnt
)
394 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
397 d
->timestamps
= !d
->timestamps
;
398 d
->timestamps_start
= -1;
402 } else if (ch
== term_escape_char
) {
403 d
->term_got_escape
= 1;
411 static void mux_chr_accept_input(CharDriverState
*chr
)
413 MuxDriver
*d
= chr
->opaque
;
416 while (d
->prod
[m
] != d
->cons
[m
] &&
417 d
->chr_can_read
[m
] &&
418 d
->chr_can_read
[m
](d
->ext_opaque
[m
])) {
419 d
->chr_read
[m
](d
->ext_opaque
[m
],
420 &d
->buffer
[m
][d
->cons
[m
]++ & MUX_BUFFER_MASK
], 1);
424 static int mux_chr_can_read(void *opaque
)
426 CharDriverState
*chr
= opaque
;
427 MuxDriver
*d
= chr
->opaque
;
430 if ((d
->prod
[m
] - d
->cons
[m
]) < MUX_BUFFER_SIZE
)
432 if (d
->chr_can_read
[m
])
433 return d
->chr_can_read
[m
](d
->ext_opaque
[m
]);
437 static void mux_chr_read(void *opaque
, const uint8_t *buf
, int size
)
439 CharDriverState
*chr
= opaque
;
440 MuxDriver
*d
= chr
->opaque
;
444 mux_chr_accept_input (opaque
);
446 for(i
= 0; i
< size
; i
++)
447 if (mux_proc_byte(chr
, d
, buf
[i
])) {
448 if (d
->prod
[m
] == d
->cons
[m
] &&
449 d
->chr_can_read
[m
] &&
450 d
->chr_can_read
[m
](d
->ext_opaque
[m
]))
451 d
->chr_read
[m
](d
->ext_opaque
[m
], &buf
[i
], 1);
453 d
->buffer
[m
][d
->prod
[m
]++ & MUX_BUFFER_MASK
] = buf
[i
];
457 static void mux_chr_event(void *opaque
, int event
)
459 CharDriverState
*chr
= opaque
;
460 MuxDriver
*d
= chr
->opaque
;
463 /* Send the event to all registered listeners */
464 for (i
= 0; i
< d
->mux_cnt
; i
++)
465 mux_chr_send_event(d
, i
, event
);
468 static void mux_chr_update_read_handler(CharDriverState
*chr
)
470 MuxDriver
*d
= chr
->opaque
;
472 if (d
->mux_cnt
>= MAX_MUX
) {
473 fprintf(stderr
, "Cannot add I/O handlers, MUX array is full\n");
476 d
->ext_opaque
[d
->mux_cnt
] = chr
->handler_opaque
;
477 d
->chr_can_read
[d
->mux_cnt
] = chr
->chr_can_read
;
478 d
->chr_read
[d
->mux_cnt
] = chr
->chr_read
;
479 d
->chr_event
[d
->mux_cnt
] = chr
->chr_event
;
480 /* Fix up the real driver with mux routines */
481 if (d
->mux_cnt
== 0) {
482 qemu_chr_add_handlers(d
->drv
, mux_chr_can_read
, mux_chr_read
,
485 if (d
->focus
!= -1) {
486 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
488 d
->focus
= d
->mux_cnt
;
490 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
493 static CharDriverState
*qemu_chr_open_mux(CharDriverState
*drv
)
495 CharDriverState
*chr
;
498 chr
= g_malloc0(sizeof(CharDriverState
));
499 d
= g_malloc0(sizeof(MuxDriver
));
504 chr
->chr_write
= mux_chr_write
;
505 chr
->chr_update_read_handler
= mux_chr_update_read_handler
;
506 chr
->chr_accept_input
= mux_chr_accept_input
;
507 /* Frontend guest-open / -close notification is not support with muxes */
508 chr
->chr_guest_open
= NULL
;
509 chr
->chr_guest_close
= NULL
;
511 /* Muxes are always open on creation */
512 qemu_chr_generic_open(chr
);
519 int send_all(int fd
, const void *buf
, int len1
)
525 ret
= send(fd
, buf
, len
, 0);
527 errno
= WSAGetLastError();
528 if (errno
!= WSAEWOULDBLOCK
) {
531 } else if (ret
== 0) {
543 int send_all(int fd
, const void *_buf
, int len1
)
546 const uint8_t *buf
= _buf
;
550 ret
= write(fd
, buf
, len
);
552 if (errno
!= EINTR
&& errno
!= EAGAIN
)
554 } else if (ret
== 0) {
564 int recv_all(int fd
, void *_buf
, int len1
, bool single_read
)
570 while ((len
> 0) && (ret
= read(fd
, buf
, len
)) != 0) {
572 if (errno
!= EINTR
&& errno
!= EAGAIN
) {
589 typedef struct IOWatchPoll
594 IOCanReadHandler
*fd_can_read
;
597 QTAILQ_ENTRY(IOWatchPoll
) node
;
600 static QTAILQ_HEAD(, IOWatchPoll
) io_watch_poll_list
=
601 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list
);
603 static IOWatchPoll
*io_watch_poll_from_source(GSource
*source
)
607 QTAILQ_FOREACH(i
, &io_watch_poll_list
, node
) {
608 if (i
->src
== source
) {
616 static gboolean
io_watch_poll_prepare(GSource
*source
, gint
*timeout_
)
618 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
620 iwp
->max_size
= iwp
->fd_can_read(iwp
->opaque
);
621 if (iwp
->max_size
== 0) {
625 return g_io_watch_funcs
.prepare(source
, timeout_
);
628 static gboolean
io_watch_poll_check(GSource
*source
)
630 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
632 if (iwp
->max_size
== 0) {
636 return g_io_watch_funcs
.check(source
);
639 static gboolean
io_watch_poll_dispatch(GSource
*source
, GSourceFunc callback
,
642 return g_io_watch_funcs
.dispatch(source
, callback
, user_data
);
645 static void io_watch_poll_finalize(GSource
*source
)
647 IOWatchPoll
*iwp
= io_watch_poll_from_source(source
);
648 QTAILQ_REMOVE(&io_watch_poll_list
, iwp
, node
);
649 g_io_watch_funcs
.finalize(source
);
652 static GSourceFuncs io_watch_poll_funcs
= {
653 .prepare
= io_watch_poll_prepare
,
654 .check
= io_watch_poll_check
,
655 .dispatch
= io_watch_poll_dispatch
,
656 .finalize
= io_watch_poll_finalize
,
659 /* Can only be used for read */
660 static guint
io_add_watch_poll(GIOChannel
*channel
,
661 IOCanReadHandler
*fd_can_read
,
669 src
= g_io_create_watch(channel
, G_IO_IN
| G_IO_ERR
| G_IO_HUP
);
670 g_source_set_funcs(src
, &io_watch_poll_funcs
);
671 g_source_set_callback(src
, (GSourceFunc
)fd_read
, user_data
, NULL
);
672 tag
= g_source_attach(src
, NULL
);
675 iwp
= g_malloc0(sizeof(*iwp
));
678 iwp
->fd_can_read
= fd_can_read
;
679 iwp
->opaque
= user_data
;
681 QTAILQ_INSERT_HEAD(&io_watch_poll_list
, iwp
, node
);
687 static GIOChannel
*io_channel_from_fd(int fd
)
695 chan
= g_io_channel_unix_new(fd
);
697 g_io_channel_set_encoding(chan
, NULL
, NULL
);
698 g_io_channel_set_buffered(chan
, FALSE
);
704 static GIOChannel
*io_channel_from_socket(int fd
)
713 chan
= g_io_channel_win32_new_socket(fd
);
715 chan
= g_io_channel_unix_new(fd
);
718 g_io_channel_set_encoding(chan
, NULL
, NULL
);
719 g_io_channel_set_buffered(chan
, FALSE
);
724 static int io_channel_send_all(GIOChannel
*fd
, const void *_buf
, int len1
)
729 const uint8_t *buf
= _buf
;
733 status
= g_io_channel_write_chars(fd
, (const gchar
*)buf
, len
,
734 &bytes_written
, NULL
);
735 if (status
!= G_IO_STATUS_NORMAL
) {
736 if (status
== G_IO_STATUS_AGAIN
) {
743 } else if (status
== G_IO_STATUS_EOF
) {
746 buf
+= bytes_written
;
747 len
-= 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_all(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
) {
790 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
793 if (status
== G_IO_STATUS_NORMAL
) {
794 qemu_chr_be_write(chr
, buf
, bytes_read
);
800 static int fd_chr_read_poll(void *opaque
)
802 CharDriverState
*chr
= opaque
;
803 FDCharDriver
*s
= chr
->opaque
;
805 s
->max_size
= qemu_chr_be_can_write(chr
);
809 static GSource
*fd_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
811 FDCharDriver
*s
= chr
->opaque
;
812 return g_io_create_watch(s
->fd_out
, cond
);
815 static void fd_chr_update_read_handler(CharDriverState
*chr
)
817 FDCharDriver
*s
= chr
->opaque
;
820 g_source_remove(s
->fd_in_tag
);
824 s
->fd_in_tag
= io_add_watch_poll(s
->fd_in
, fd_chr_read_poll
, fd_chr_read
, chr
);
828 static void fd_chr_close(struct CharDriverState
*chr
)
830 FDCharDriver
*s
= chr
->opaque
;
833 g_source_remove(s
->fd_in_tag
);
838 g_io_channel_unref(s
->fd_in
);
841 g_io_channel_unref(s
->fd_out
);
845 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
848 /* open a character device to a unix fd */
849 static CharDriverState
*qemu_chr_open_fd(int fd_in
, int fd_out
)
851 CharDriverState
*chr
;
854 chr
= g_malloc0(sizeof(CharDriverState
));
855 s
= g_malloc0(sizeof(FDCharDriver
));
856 s
->fd_in
= io_channel_from_fd(fd_in
);
857 s
->fd_out
= io_channel_from_fd(fd_out
);
858 fcntl(fd_out
, F_SETFL
, O_NONBLOCK
);
861 chr
->chr_add_watch
= fd_chr_add_watch
;
862 chr
->chr_write
= fd_chr_write
;
863 chr
->chr_update_read_handler
= fd_chr_update_read_handler
;
864 chr
->chr_close
= fd_chr_close
;
866 qemu_chr_generic_open(chr
);
871 static CharDriverState
*qemu_chr_open_pipe(ChardevHostdev
*opts
)
874 char filename_in
[256], filename_out
[256];
875 const char *filename
= opts
->device
;
877 if (filename
== NULL
) {
878 fprintf(stderr
, "chardev: pipe: no filename given\n");
882 snprintf(filename_in
, 256, "%s.in", filename
);
883 snprintf(filename_out
, 256, "%s.out", filename
);
884 TFR(fd_in
= qemu_open(filename_in
, O_RDWR
| O_BINARY
));
885 TFR(fd_out
= qemu_open(filename_out
, O_RDWR
| O_BINARY
));
886 if (fd_in
< 0 || fd_out
< 0) {
891 TFR(fd_in
= fd_out
= qemu_open(filename
, O_RDWR
| O_BINARY
));
896 return qemu_chr_open_fd(fd_in
, fd_out
);
899 /* init terminal so that we can grab keys */
900 static struct termios oldtty
;
901 static int old_fd0_flags
;
902 static bool stdio_allow_signal
;
904 static void term_exit(void)
906 tcsetattr (0, TCSANOW
, &oldtty
);
907 fcntl(0, F_SETFL
, old_fd0_flags
);
910 static void qemu_chr_set_echo_stdio(CharDriverState
*chr
, bool echo
)
916 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
917 |INLCR
|IGNCR
|ICRNL
|IXON
);
918 tty
.c_oflag
|= OPOST
;
919 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
920 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
925 /* if graphical mode, we allow Ctrl-C handling */
926 if (!stdio_allow_signal
)
927 tty
.c_lflag
&= ~ISIG
;
929 tcsetattr (0, TCSANOW
, &tty
);
932 static void qemu_chr_close_stdio(struct CharDriverState
*chr
)
938 static CharDriverState
*qemu_chr_open_stdio(ChardevStdio
*opts
)
940 CharDriverState
*chr
;
942 if (is_daemonized()) {
943 error_report("cannot use stdio with -daemonize");
946 old_fd0_flags
= fcntl(0, F_GETFL
);
947 tcgetattr (0, &oldtty
);
948 fcntl(0, F_SETFL
, O_NONBLOCK
);
951 chr
= qemu_chr_open_fd(0, 1);
952 chr
->chr_close
= qemu_chr_close_stdio
;
953 chr
->chr_set_echo
= qemu_chr_set_echo_stdio
;
954 stdio_allow_signal
= display_type
!= DT_NOGRAPHIC
;
955 if (opts
->has_signal
) {
956 stdio_allow_signal
= opts
->signal
;
958 qemu_chr_fe_set_echo(chr
, false);
964 /* Once Solaris has openpty(), this is going to be removed. */
965 static int openpty(int *amaster
, int *aslave
, char *name
,
966 struct termios
*termp
, struct winsize
*winp
)
969 int mfd
= -1, sfd
= -1;
971 *amaster
= *aslave
= -1;
973 mfd
= open("/dev/ptmx", O_RDWR
| O_NOCTTY
);
977 if (grantpt(mfd
) == -1 || unlockpt(mfd
) == -1)
980 if ((slave
= ptsname(mfd
)) == NULL
)
983 if ((sfd
= open(slave
, O_RDONLY
| O_NOCTTY
)) == -1)
986 if (ioctl(sfd
, I_PUSH
, "ptem") == -1 ||
987 (termp
!= NULL
&& tcgetattr(sfd
, termp
) < 0))
995 ioctl(sfd
, TIOCSWINSZ
, winp
);
1006 static void cfmakeraw (struct termios
*termios_p
)
1008 termios_p
->c_iflag
&=
1009 ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
1010 termios_p
->c_oflag
&= ~OPOST
;
1011 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
1012 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
1013 termios_p
->c_cflag
|= CS8
;
1015 termios_p
->c_cc
[VMIN
] = 0;
1016 termios_p
->c_cc
[VTIME
] = 0;
1020 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1021 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1022 || defined(__GLIBC__)
1024 #define HAVE_CHARDEV_TTY 1
1035 static void pty_chr_update_read_handler(CharDriverState
*chr
);
1036 static void pty_chr_state(CharDriverState
*chr
, int connected
);
1038 static gboolean
pty_chr_timer(gpointer opaque
)
1040 struct CharDriverState
*chr
= opaque
;
1041 PtyCharDriver
*s
= chr
->opaque
;
1047 /* If we arrive here without polling being cleared due
1048 * read returning -EIO, then we are (re-)connected */
1049 pty_chr_state(chr
, 1);
1054 pty_chr_update_read_handler(chr
);
1060 static void pty_chr_rearm_timer(CharDriverState
*chr
, int ms
)
1062 PtyCharDriver
*s
= chr
->opaque
;
1065 g_source_remove(s
->timer_tag
);
1070 s
->timer_tag
= g_timeout_add_seconds(1, pty_chr_timer
, chr
);
1072 s
->timer_tag
= g_timeout_add(ms
, pty_chr_timer
, chr
);
1076 static int pty_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1078 PtyCharDriver
*s
= chr
->opaque
;
1080 if (!s
->connected
) {
1081 /* guest sends data, check for (re-)connect */
1082 pty_chr_update_read_handler(chr
);
1085 return io_channel_send_all(s
->fd
, buf
, len
);
1088 static GSource
*pty_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
1090 PtyCharDriver
*s
= chr
->opaque
;
1091 return g_io_create_watch(s
->fd
, cond
);
1094 static int pty_chr_read_poll(void *opaque
)
1096 CharDriverState
*chr
= opaque
;
1097 PtyCharDriver
*s
= chr
->opaque
;
1099 s
->read_bytes
= qemu_chr_be_can_write(chr
);
1100 return s
->read_bytes
;
1103 static gboolean
pty_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
1105 CharDriverState
*chr
= opaque
;
1106 PtyCharDriver
*s
= chr
->opaque
;
1108 uint8_t buf
[READ_BUF_LEN
];
1112 if (len
> s
->read_bytes
)
1113 len
= s
->read_bytes
;
1116 status
= g_io_channel_read_chars(s
->fd
, (gchar
*)buf
, len
, &size
, NULL
);
1117 if (status
!= G_IO_STATUS_NORMAL
) {
1118 pty_chr_state(chr
, 0);
1121 pty_chr_state(chr
, 1);
1122 qemu_chr_be_write(chr
, buf
, size
);
1127 static void pty_chr_update_read_handler(CharDriverState
*chr
)
1129 PtyCharDriver
*s
= chr
->opaque
;
1132 g_source_remove(s
->fd_tag
);
1135 s
->fd_tag
= io_add_watch_poll(s
->fd
, pty_chr_read_poll
, pty_chr_read
, chr
);
1138 * Short timeout here: just need wait long enougth that qemu makes
1139 * it through the poll loop once. When reconnected we want a
1140 * short timeout so we notice it almost instantly. Otherwise
1141 * read() gives us -EIO instantly, making pty_chr_state() reset the
1142 * timeout to the normal (much longer) poll interval before the
1145 pty_chr_rearm_timer(chr
, 10);
1148 static void pty_chr_state(CharDriverState
*chr
, int connected
)
1150 PtyCharDriver
*s
= chr
->opaque
;
1153 g_source_remove(s
->fd_tag
);
1157 /* (re-)connect poll interval for idle guests: once per second.
1158 * We check more frequently in case the guests sends data to
1159 * the virtual device linked to our pty. */
1160 pty_chr_rearm_timer(chr
, 1000);
1163 qemu_chr_generic_open(chr
);
1169 static void pty_chr_close(struct CharDriverState
*chr
)
1171 PtyCharDriver
*s
= chr
->opaque
;
1175 g_source_remove(s
->fd_tag
);
1177 fd
= g_io_channel_unix_get_fd(s
->fd
);
1178 g_io_channel_unref(s
->fd
);
1181 g_source_remove(s
->timer_tag
);
1184 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1187 static CharDriverState
*qemu_chr_open_pty(const char *id
,
1190 CharDriverState
*chr
;
1193 int master_fd
, slave_fd
;
1194 #if defined(__OpenBSD__) || defined(__DragonFly__)
1195 char pty_name
[PATH_MAX
];
1196 #define q_ptsname(x) pty_name
1198 char *pty_name
= NULL
;
1199 #define q_ptsname(x) ptsname(x)
1202 if (openpty(&master_fd
, &slave_fd
, pty_name
, NULL
, NULL
) < 0) {
1206 /* Set raw attributes on the pty. */
1207 tcgetattr(slave_fd
, &tty
);
1209 tcsetattr(slave_fd
, TCSAFLUSH
, &tty
);
1212 chr
= g_malloc0(sizeof(CharDriverState
));
1214 chr
->filename
= g_strdup_printf("pty:%s", q_ptsname(master_fd
));
1215 ret
->pty
= g_strdup(q_ptsname(master_fd
));
1216 ret
->has_pty
= true;
1218 fprintf(stderr
, "char device redirected to %s (label %s)\n",
1219 q_ptsname(master_fd
), id
);
1221 s
= g_malloc0(sizeof(PtyCharDriver
));
1223 chr
->chr_write
= pty_chr_write
;
1224 chr
->chr_update_read_handler
= pty_chr_update_read_handler
;
1225 chr
->chr_close
= pty_chr_close
;
1226 chr
->chr_add_watch
= pty_chr_add_watch
;
1228 s
->fd
= io_channel_from_fd(master_fd
);
1234 static void tty_serial_init(int fd
, int speed
,
1235 int parity
, int data_bits
, int stop_bits
)
1241 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1242 speed
, parity
, data_bits
, stop_bits
);
1244 tcgetattr (fd
, &tty
);
1246 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1247 speed
= speed
* 10 / 11;
1264 /* Non-Posix values follow. They may be unsupported on some systems. */
1266 check_speed(115200);
1268 check_speed(230400);
1271 check_speed(460800);
1274 check_speed(500000);
1277 check_speed(576000);
1280 check_speed(921600);
1283 check_speed(1000000);
1286 check_speed(1152000);
1289 check_speed(1500000);
1292 check_speed(2000000);
1295 check_speed(2500000);
1298 check_speed(3000000);
1301 check_speed(3500000);
1304 check_speed(4000000);
1309 cfsetispeed(&tty
, spd
);
1310 cfsetospeed(&tty
, spd
);
1312 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1313 |INLCR
|IGNCR
|ICRNL
|IXON
);
1314 tty
.c_oflag
|= OPOST
;
1315 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
|ISIG
);
1316 tty
.c_cflag
&= ~(CSIZE
|PARENB
|PARODD
|CRTSCTS
|CSTOPB
);
1337 tty
.c_cflag
|= PARENB
;
1340 tty
.c_cflag
|= PARENB
| PARODD
;
1344 tty
.c_cflag
|= CSTOPB
;
1346 tcsetattr (fd
, TCSANOW
, &tty
);
1349 static int tty_serial_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1351 FDCharDriver
*s
= chr
->opaque
;
1354 case CHR_IOCTL_SERIAL_SET_PARAMS
:
1356 QEMUSerialSetParams
*ssp
= arg
;
1357 tty_serial_init(g_io_channel_unix_get_fd(s
->fd_in
),
1358 ssp
->speed
, ssp
->parity
,
1359 ssp
->data_bits
, ssp
->stop_bits
);
1362 case CHR_IOCTL_SERIAL_SET_BREAK
:
1364 int enable
= *(int *)arg
;
1366 tcsendbreak(g_io_channel_unix_get_fd(s
->fd_in
), 1);
1370 case CHR_IOCTL_SERIAL_GET_TIOCM
:
1373 int *targ
= (int *)arg
;
1374 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMGET
, &sarg
);
1376 if (sarg
& TIOCM_CTS
)
1377 *targ
|= CHR_TIOCM_CTS
;
1378 if (sarg
& TIOCM_CAR
)
1379 *targ
|= CHR_TIOCM_CAR
;
1380 if (sarg
& TIOCM_DSR
)
1381 *targ
|= CHR_TIOCM_DSR
;
1382 if (sarg
& TIOCM_RI
)
1383 *targ
|= CHR_TIOCM_RI
;
1384 if (sarg
& TIOCM_DTR
)
1385 *targ
|= CHR_TIOCM_DTR
;
1386 if (sarg
& TIOCM_RTS
)
1387 *targ
|= CHR_TIOCM_RTS
;
1390 case CHR_IOCTL_SERIAL_SET_TIOCM
:
1392 int sarg
= *(int *)arg
;
1394 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMGET
, &targ
);
1395 targ
&= ~(CHR_TIOCM_CTS
| CHR_TIOCM_CAR
| CHR_TIOCM_DSR
1396 | CHR_TIOCM_RI
| CHR_TIOCM_DTR
| CHR_TIOCM_RTS
);
1397 if (sarg
& CHR_TIOCM_CTS
)
1399 if (sarg
& CHR_TIOCM_CAR
)
1401 if (sarg
& CHR_TIOCM_DSR
)
1403 if (sarg
& CHR_TIOCM_RI
)
1405 if (sarg
& CHR_TIOCM_DTR
)
1407 if (sarg
& CHR_TIOCM_RTS
)
1409 ioctl(g_io_channel_unix_get_fd(s
->fd_in
), TIOCMSET
, &targ
);
1418 static void qemu_chr_close_tty(CharDriverState
*chr
)
1420 FDCharDriver
*s
= chr
->opaque
;
1424 fd
= g_io_channel_unix_get_fd(s
->fd_in
);
1434 static CharDriverState
*qemu_chr_open_tty_fd(int fd
)
1436 CharDriverState
*chr
;
1438 tty_serial_init(fd
, 115200, 'N', 8, 1);
1439 chr
= qemu_chr_open_fd(fd
, fd
);
1440 chr
->chr_ioctl
= tty_serial_ioctl
;
1441 chr
->chr_close
= qemu_chr_close_tty
;
1444 #endif /* __linux__ || __sun__ */
1446 #if defined(__linux__)
1448 #define HAVE_CHARDEV_PARPORT 1
1453 } ParallelCharDriver
;
1455 static int pp_hw_mode(ParallelCharDriver
*s
, uint16_t mode
)
1457 if (s
->mode
!= mode
) {
1459 if (ioctl(s
->fd
, PPSETMODE
, &m
) < 0)
1466 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1468 ParallelCharDriver
*drv
= chr
->opaque
;
1473 case CHR_IOCTL_PP_READ_DATA
:
1474 if (ioctl(fd
, PPRDATA
, &b
) < 0)
1476 *(uint8_t *)arg
= b
;
1478 case CHR_IOCTL_PP_WRITE_DATA
:
1479 b
= *(uint8_t *)arg
;
1480 if (ioctl(fd
, PPWDATA
, &b
) < 0)
1483 case CHR_IOCTL_PP_READ_CONTROL
:
1484 if (ioctl(fd
, PPRCONTROL
, &b
) < 0)
1486 /* Linux gives only the lowest bits, and no way to know data
1487 direction! For better compatibility set the fixed upper
1489 *(uint8_t *)arg
= b
| 0xc0;
1491 case CHR_IOCTL_PP_WRITE_CONTROL
:
1492 b
= *(uint8_t *)arg
;
1493 if (ioctl(fd
, PPWCONTROL
, &b
) < 0)
1496 case CHR_IOCTL_PP_READ_STATUS
:
1497 if (ioctl(fd
, PPRSTATUS
, &b
) < 0)
1499 *(uint8_t *)arg
= b
;
1501 case CHR_IOCTL_PP_DATA_DIR
:
1502 if (ioctl(fd
, PPDATADIR
, (int *)arg
) < 0)
1505 case CHR_IOCTL_PP_EPP_READ_ADDR
:
1506 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1507 struct ParallelIOArg
*parg
= arg
;
1508 int n
= read(fd
, parg
->buffer
, parg
->count
);
1509 if (n
!= parg
->count
) {
1514 case CHR_IOCTL_PP_EPP_READ
:
1515 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1516 struct ParallelIOArg
*parg
= arg
;
1517 int n
= read(fd
, parg
->buffer
, parg
->count
);
1518 if (n
!= parg
->count
) {
1523 case CHR_IOCTL_PP_EPP_WRITE_ADDR
:
1524 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1525 struct ParallelIOArg
*parg
= arg
;
1526 int n
= write(fd
, parg
->buffer
, parg
->count
);
1527 if (n
!= parg
->count
) {
1532 case CHR_IOCTL_PP_EPP_WRITE
:
1533 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1534 struct ParallelIOArg
*parg
= arg
;
1535 int n
= write(fd
, parg
->buffer
, parg
->count
);
1536 if (n
!= parg
->count
) {
1547 static void pp_close(CharDriverState
*chr
)
1549 ParallelCharDriver
*drv
= chr
->opaque
;
1552 pp_hw_mode(drv
, IEEE1284_MODE_COMPAT
);
1553 ioctl(fd
, PPRELEASE
);
1556 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1559 static CharDriverState
*qemu_chr_open_pp_fd(int fd
)
1561 CharDriverState
*chr
;
1562 ParallelCharDriver
*drv
;
1564 if (ioctl(fd
, PPCLAIM
) < 0) {
1569 drv
= g_malloc0(sizeof(ParallelCharDriver
));
1571 drv
->mode
= IEEE1284_MODE_COMPAT
;
1573 chr
= g_malloc0(sizeof(CharDriverState
));
1574 chr
->chr_write
= null_chr_write
;
1575 chr
->chr_ioctl
= pp_ioctl
;
1576 chr
->chr_close
= pp_close
;
1579 qemu_chr_generic_open(chr
);
1583 #endif /* __linux__ */
1585 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1587 #define HAVE_CHARDEV_PARPORT 1
1589 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1591 int fd
= (int)(intptr_t)chr
->opaque
;
1595 case CHR_IOCTL_PP_READ_DATA
:
1596 if (ioctl(fd
, PPIGDATA
, &b
) < 0)
1598 *(uint8_t *)arg
= b
;
1600 case CHR_IOCTL_PP_WRITE_DATA
:
1601 b
= *(uint8_t *)arg
;
1602 if (ioctl(fd
, PPISDATA
, &b
) < 0)
1605 case CHR_IOCTL_PP_READ_CONTROL
:
1606 if (ioctl(fd
, PPIGCTRL
, &b
) < 0)
1608 *(uint8_t *)arg
= b
;
1610 case CHR_IOCTL_PP_WRITE_CONTROL
:
1611 b
= *(uint8_t *)arg
;
1612 if (ioctl(fd
, PPISCTRL
, &b
) < 0)
1615 case CHR_IOCTL_PP_READ_STATUS
:
1616 if (ioctl(fd
, PPIGSTATUS
, &b
) < 0)
1618 *(uint8_t *)arg
= b
;
1626 static CharDriverState
*qemu_chr_open_pp_fd(int fd
)
1628 CharDriverState
*chr
;
1630 chr
= g_malloc0(sizeof(CharDriverState
));
1631 chr
->opaque
= (void *)(intptr_t)fd
;
1632 chr
->chr_write
= null_chr_write
;
1633 chr
->chr_ioctl
= pp_ioctl
;
1642 HANDLE hcom
, hrecv
, hsend
;
1643 OVERLAPPED orecv
, osend
;
1650 HANDLE hInputReadyEvent
;
1651 HANDLE hInputDoneEvent
;
1652 HANDLE hInputThread
;
1653 uint8_t win_stdio_buf
;
1654 } WinStdioCharState
;
1656 #define NSENDBUF 2048
1657 #define NRECVBUF 2048
1658 #define MAXCONNECT 1
1659 #define NTIMEOUT 5000
1661 static int win_chr_poll(void *opaque
);
1662 static int win_chr_pipe_poll(void *opaque
);
1664 static void win_chr_close(CharDriverState
*chr
)
1666 WinCharState
*s
= chr
->opaque
;
1669 CloseHandle(s
->hsend
);
1673 CloseHandle(s
->hrecv
);
1677 CloseHandle(s
->hcom
);
1681 qemu_del_polling_cb(win_chr_pipe_poll
, chr
);
1683 qemu_del_polling_cb(win_chr_poll
, chr
);
1685 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1688 static int win_chr_init(CharDriverState
*chr
, const char *filename
)
1690 WinCharState
*s
= chr
->opaque
;
1692 COMMTIMEOUTS cto
= { 0, 0, 0, 0, 0};
1697 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1699 fprintf(stderr
, "Failed CreateEvent\n");
1702 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1704 fprintf(stderr
, "Failed CreateEvent\n");
1708 s
->hcom
= CreateFile(filename
, GENERIC_READ
|GENERIC_WRITE
, 0, NULL
,
1709 OPEN_EXISTING
, FILE_FLAG_OVERLAPPED
, 0);
1710 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1711 fprintf(stderr
, "Failed CreateFile (%lu)\n", GetLastError());
1716 if (!SetupComm(s
->hcom
, NRECVBUF
, NSENDBUF
)) {
1717 fprintf(stderr
, "Failed SetupComm\n");
1721 ZeroMemory(&comcfg
, sizeof(COMMCONFIG
));
1722 size
= sizeof(COMMCONFIG
);
1723 GetDefaultCommConfig(filename
, &comcfg
, &size
);
1724 comcfg
.dcb
.DCBlength
= sizeof(DCB
);
1725 CommConfigDialog(filename
, NULL
, &comcfg
);
1727 if (!SetCommState(s
->hcom
, &comcfg
.dcb
)) {
1728 fprintf(stderr
, "Failed SetCommState\n");
1732 if (!SetCommMask(s
->hcom
, EV_ERR
)) {
1733 fprintf(stderr
, "Failed SetCommMask\n");
1737 cto
.ReadIntervalTimeout
= MAXDWORD
;
1738 if (!SetCommTimeouts(s
->hcom
, &cto
)) {
1739 fprintf(stderr
, "Failed SetCommTimeouts\n");
1743 if (!ClearCommError(s
->hcom
, &err
, &comstat
)) {
1744 fprintf(stderr
, "Failed ClearCommError\n");
1747 qemu_add_polling_cb(win_chr_poll
, chr
);
1755 static int win_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len1
)
1757 WinCharState
*s
= chr
->opaque
;
1758 DWORD len
, ret
, size
, err
;
1761 ZeroMemory(&s
->osend
, sizeof(s
->osend
));
1762 s
->osend
.hEvent
= s
->hsend
;
1765 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, &s
->osend
);
1767 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, NULL
);
1769 err
= GetLastError();
1770 if (err
== ERROR_IO_PENDING
) {
1771 ret
= GetOverlappedResult(s
->hcom
, &s
->osend
, &size
, TRUE
);
1789 static int win_chr_read_poll(CharDriverState
*chr
)
1791 WinCharState
*s
= chr
->opaque
;
1793 s
->max_size
= qemu_chr_be_can_write(chr
);
1797 static void win_chr_readfile(CharDriverState
*chr
)
1799 WinCharState
*s
= chr
->opaque
;
1801 uint8_t buf
[READ_BUF_LEN
];
1804 ZeroMemory(&s
->orecv
, sizeof(s
->orecv
));
1805 s
->orecv
.hEvent
= s
->hrecv
;
1806 ret
= ReadFile(s
->hcom
, buf
, s
->len
, &size
, &s
->orecv
);
1808 err
= GetLastError();
1809 if (err
== ERROR_IO_PENDING
) {
1810 ret
= GetOverlappedResult(s
->hcom
, &s
->orecv
, &size
, TRUE
);
1815 qemu_chr_be_write(chr
, buf
, size
);
1819 static void win_chr_read(CharDriverState
*chr
)
1821 WinCharState
*s
= chr
->opaque
;
1823 if (s
->len
> s
->max_size
)
1824 s
->len
= s
->max_size
;
1828 win_chr_readfile(chr
);
1831 static int win_chr_poll(void *opaque
)
1833 CharDriverState
*chr
= opaque
;
1834 WinCharState
*s
= chr
->opaque
;
1838 ClearCommError(s
->hcom
, &comerr
, &status
);
1839 if (status
.cbInQue
> 0) {
1840 s
->len
= status
.cbInQue
;
1841 win_chr_read_poll(chr
);
1848 static CharDriverState
*qemu_chr_open_win_path(const char *filename
)
1850 CharDriverState
*chr
;
1853 chr
= g_malloc0(sizeof(CharDriverState
));
1854 s
= g_malloc0(sizeof(WinCharState
));
1856 chr
->chr_write
= win_chr_write
;
1857 chr
->chr_close
= win_chr_close
;
1859 if (win_chr_init(chr
, filename
) < 0) {
1864 qemu_chr_generic_open(chr
);
1868 static int win_chr_pipe_poll(void *opaque
)
1870 CharDriverState
*chr
= opaque
;
1871 WinCharState
*s
= chr
->opaque
;
1874 PeekNamedPipe(s
->hcom
, NULL
, 0, NULL
, &size
, NULL
);
1877 win_chr_read_poll(chr
);
1884 static int win_chr_pipe_init(CharDriverState
*chr
, const char *filename
)
1886 WinCharState
*s
= chr
->opaque
;
1894 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1896 fprintf(stderr
, "Failed CreateEvent\n");
1899 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1901 fprintf(stderr
, "Failed CreateEvent\n");
1905 snprintf(openname
, sizeof(openname
), "\\\\.\\pipe\\%s", filename
);
1906 s
->hcom
= CreateNamedPipe(openname
, PIPE_ACCESS_DUPLEX
| FILE_FLAG_OVERLAPPED
,
1907 PIPE_TYPE_BYTE
| PIPE_READMODE_BYTE
|
1909 MAXCONNECT
, NSENDBUF
, NRECVBUF
, NTIMEOUT
, NULL
);
1910 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1911 fprintf(stderr
, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1916 ZeroMemory(&ov
, sizeof(ov
));
1917 ov
.hEvent
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1918 ret
= ConnectNamedPipe(s
->hcom
, &ov
);
1920 fprintf(stderr
, "Failed ConnectNamedPipe\n");
1924 ret
= GetOverlappedResult(s
->hcom
, &ov
, &size
, TRUE
);
1926 fprintf(stderr
, "Failed GetOverlappedResult\n");
1928 CloseHandle(ov
.hEvent
);
1935 CloseHandle(ov
.hEvent
);
1938 qemu_add_polling_cb(win_chr_pipe_poll
, chr
);
1947 static CharDriverState
*qemu_chr_open_pipe(ChardevHostdev
*opts
)
1949 const char *filename
= opts
->device
;
1950 CharDriverState
*chr
;
1953 chr
= g_malloc0(sizeof(CharDriverState
));
1954 s
= g_malloc0(sizeof(WinCharState
));
1956 chr
->chr_write
= win_chr_write
;
1957 chr
->chr_close
= win_chr_close
;
1959 if (win_chr_pipe_init(chr
, filename
) < 0) {
1964 qemu_chr_generic_open(chr
);
1968 static CharDriverState
*qemu_chr_open_win_file(HANDLE fd_out
)
1970 CharDriverState
*chr
;
1973 chr
= g_malloc0(sizeof(CharDriverState
));
1974 s
= g_malloc0(sizeof(WinCharState
));
1977 chr
->chr_write
= win_chr_write
;
1978 qemu_chr_generic_open(chr
);
1982 static CharDriverState
*qemu_chr_open_win_con(void)
1984 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE
));
1987 static int win_stdio_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1989 HANDLE hStdOut
= GetStdHandle(STD_OUTPUT_HANDLE
);
1996 if (!WriteFile(hStdOut
, buf
, len1
, &dwSize
, NULL
)) {
2006 static void win_stdio_wait_func(void *opaque
)
2008 CharDriverState
*chr
= opaque
;
2009 WinStdioCharState
*stdio
= chr
->opaque
;
2010 INPUT_RECORD buf
[4];
2015 ret
= ReadConsoleInput(stdio
->hStdIn
, buf
, sizeof(buf
) / sizeof(*buf
),
2019 /* Avoid error storm */
2020 qemu_del_wait_object(stdio
->hStdIn
, NULL
, NULL
);
2024 for (i
= 0; i
< dwSize
; i
++) {
2025 KEY_EVENT_RECORD
*kev
= &buf
[i
].Event
.KeyEvent
;
2027 if (buf
[i
].EventType
== KEY_EVENT
&& kev
->bKeyDown
) {
2029 if (kev
->uChar
.AsciiChar
!= 0) {
2030 for (j
= 0; j
< kev
->wRepeatCount
; j
++) {
2031 if (qemu_chr_be_can_write(chr
)) {
2032 uint8_t c
= kev
->uChar
.AsciiChar
;
2033 qemu_chr_be_write(chr
, &c
, 1);
2041 static DWORD WINAPI
win_stdio_thread(LPVOID param
)
2043 CharDriverState
*chr
= param
;
2044 WinStdioCharState
*stdio
= chr
->opaque
;
2050 /* Wait for one byte */
2051 ret
= ReadFile(stdio
->hStdIn
, &stdio
->win_stdio_buf
, 1, &dwSize
, NULL
);
2053 /* Exit in case of error, continue if nothing read */
2061 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2062 if (stdio
->win_stdio_buf
== '\r') {
2066 /* Signal the main thread and wait until the byte was eaten */
2067 if (!SetEvent(stdio
->hInputReadyEvent
)) {
2070 if (WaitForSingleObject(stdio
->hInputDoneEvent
, INFINITE
)
2076 qemu_del_wait_object(stdio
->hInputReadyEvent
, NULL
, NULL
);
2080 static void win_stdio_thread_wait_func(void *opaque
)
2082 CharDriverState
*chr
= opaque
;
2083 WinStdioCharState
*stdio
= chr
->opaque
;
2085 if (qemu_chr_be_can_write(chr
)) {
2086 qemu_chr_be_write(chr
, &stdio
->win_stdio_buf
, 1);
2089 SetEvent(stdio
->hInputDoneEvent
);
2092 static void qemu_chr_set_echo_win_stdio(CharDriverState
*chr
, bool echo
)
2094 WinStdioCharState
*stdio
= chr
->opaque
;
2097 GetConsoleMode(stdio
->hStdIn
, &dwMode
);
2100 SetConsoleMode(stdio
->hStdIn
, dwMode
| ENABLE_ECHO_INPUT
);
2102 SetConsoleMode(stdio
->hStdIn
, dwMode
& ~ENABLE_ECHO_INPUT
);
2106 static void win_stdio_close(CharDriverState
*chr
)
2108 WinStdioCharState
*stdio
= chr
->opaque
;
2110 if (stdio
->hInputReadyEvent
!= INVALID_HANDLE_VALUE
) {
2111 CloseHandle(stdio
->hInputReadyEvent
);
2113 if (stdio
->hInputDoneEvent
!= INVALID_HANDLE_VALUE
) {
2114 CloseHandle(stdio
->hInputDoneEvent
);
2116 if (stdio
->hInputThread
!= INVALID_HANDLE_VALUE
) {
2117 TerminateThread(stdio
->hInputThread
, 0);
2120 g_free(chr
->opaque
);
2124 static CharDriverState
*qemu_chr_open_stdio(ChardevStdio
*opts
)
2126 CharDriverState
*chr
;
2127 WinStdioCharState
*stdio
;
2131 chr
= g_malloc0(sizeof(CharDriverState
));
2132 stdio
= g_malloc0(sizeof(WinStdioCharState
));
2134 stdio
->hStdIn
= GetStdHandle(STD_INPUT_HANDLE
);
2135 if (stdio
->hStdIn
== INVALID_HANDLE_VALUE
) {
2136 fprintf(stderr
, "cannot open stdio: invalid handle\n");
2140 is_console
= GetConsoleMode(stdio
->hStdIn
, &dwMode
) != 0;
2142 chr
->opaque
= stdio
;
2143 chr
->chr_write
= win_stdio_write
;
2144 chr
->chr_close
= win_stdio_close
;
2147 if (qemu_add_wait_object(stdio
->hStdIn
,
2148 win_stdio_wait_func
, chr
)) {
2149 fprintf(stderr
, "qemu_add_wait_object: failed\n");
2154 stdio
->hInputReadyEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
2155 stdio
->hInputDoneEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
2156 stdio
->hInputThread
= CreateThread(NULL
, 0, win_stdio_thread
,
2159 if (stdio
->hInputThread
== INVALID_HANDLE_VALUE
2160 || stdio
->hInputReadyEvent
== INVALID_HANDLE_VALUE
2161 || stdio
->hInputDoneEvent
== INVALID_HANDLE_VALUE
) {
2162 fprintf(stderr
, "cannot create stdio thread or event\n");
2165 if (qemu_add_wait_object(stdio
->hInputReadyEvent
,
2166 win_stdio_thread_wait_func
, chr
)) {
2167 fprintf(stderr
, "qemu_add_wait_object: failed\n");
2171 dwMode
|= ENABLE_LINE_INPUT
;
2174 /* set the terminal in raw mode */
2175 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2176 dwMode
|= ENABLE_PROCESSED_INPUT
;
2179 SetConsoleMode(stdio
->hStdIn
, dwMode
);
2181 chr
->chr_set_echo
= qemu_chr_set_echo_win_stdio
;
2182 qemu_chr_fe_set_echo(chr
, false);
2186 #endif /* !_WIN32 */
2189 /***********************************************************/
2190 /* UDP Net console */
2196 uint8_t buf
[READ_BUF_LEN
];
2202 static int udp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2204 NetCharDriver
*s
= chr
->opaque
;
2205 gsize bytes_written
;
2208 status
= g_io_channel_write_chars(s
->chan
, (const gchar
*)buf
, len
, &bytes_written
, NULL
);
2209 if (status
== G_IO_STATUS_EOF
) {
2211 } else if (status
!= G_IO_STATUS_NORMAL
) {
2215 return bytes_written
;
2218 static int udp_chr_read_poll(void *opaque
)
2220 CharDriverState
*chr
= opaque
;
2221 NetCharDriver
*s
= chr
->opaque
;
2223 s
->max_size
= qemu_chr_be_can_write(chr
);
2225 /* If there were any stray characters in the queue process them
2228 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2229 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2231 s
->max_size
= qemu_chr_be_can_write(chr
);
2236 static gboolean
udp_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
2238 CharDriverState
*chr
= opaque
;
2239 NetCharDriver
*s
= chr
->opaque
;
2240 gsize bytes_read
= 0;
2243 if (s
->max_size
== 0)
2245 status
= g_io_channel_read_chars(s
->chan
, (gchar
*)s
->buf
, sizeof(s
->buf
),
2247 s
->bufcnt
= bytes_read
;
2248 s
->bufptr
= s
->bufcnt
;
2249 if (status
!= G_IO_STATUS_NORMAL
) {
2254 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2255 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2257 s
->max_size
= qemu_chr_be_can_write(chr
);
2263 static void udp_chr_update_read_handler(CharDriverState
*chr
)
2265 NetCharDriver
*s
= chr
->opaque
;
2268 g_source_remove(s
->tag
);
2273 s
->tag
= io_add_watch_poll(s
->chan
, udp_chr_read_poll
, udp_chr_read
, chr
);
2277 static void udp_chr_close(CharDriverState
*chr
)
2279 NetCharDriver
*s
= chr
->opaque
;
2281 g_source_remove(s
->tag
);
2284 g_io_channel_unref(s
->chan
);
2288 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2291 static CharDriverState
*qemu_chr_open_udp_fd(int fd
)
2293 CharDriverState
*chr
= NULL
;
2294 NetCharDriver
*s
= NULL
;
2296 chr
= g_malloc0(sizeof(CharDriverState
));
2297 s
= g_malloc0(sizeof(NetCharDriver
));
2300 s
->chan
= io_channel_from_socket(s
->fd
);
2304 chr
->chr_write
= udp_chr_write
;
2305 chr
->chr_update_read_handler
= udp_chr_update_read_handler
;
2306 chr
->chr_close
= udp_chr_close
;
2310 static CharDriverState
*qemu_chr_open_udp(QemuOpts
*opts
)
2312 Error
*local_err
= NULL
;
2315 fd
= inet_dgram_opts(opts
, &local_err
);
2319 return qemu_chr_open_udp_fd(fd
);
2322 /***********************************************************/
2323 /* TCP Net console */
2327 GIOChannel
*chan
, *listen_chan
;
2328 guint tag
, listen_tag
;
2338 static gboolean
tcp_chr_accept(GIOChannel
*chan
, GIOCondition cond
, void *opaque
);
2340 static int tcp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2342 TCPCharDriver
*s
= chr
->opaque
;
2344 return io_channel_send_all(s
->chan
, buf
, len
);
2346 /* XXX: indicate an error ? */
2351 static int tcp_chr_read_poll(void *opaque
)
2353 CharDriverState
*chr
= opaque
;
2354 TCPCharDriver
*s
= chr
->opaque
;
2357 s
->max_size
= qemu_chr_be_can_write(chr
);
2362 #define IAC_BREAK 243
2363 static void tcp_chr_process_IAC_bytes(CharDriverState
*chr
,
2365 uint8_t *buf
, int *size
)
2367 /* Handle any telnet client's basic IAC options to satisfy char by
2368 * char mode with no echo. All IAC options will be removed from
2369 * the buf and the do_telnetopt variable will be used to track the
2370 * state of the width of the IAC information.
2372 * IAC commands come in sets of 3 bytes with the exception of the
2373 * "IAC BREAK" command and the double IAC.
2379 for (i
= 0; i
< *size
; i
++) {
2380 if (s
->do_telnetopt
> 1) {
2381 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
2382 /* Double IAC means send an IAC */
2386 s
->do_telnetopt
= 1;
2388 if ((unsigned char)buf
[i
] == IAC_BREAK
&& s
->do_telnetopt
== 2) {
2389 /* Handle IAC break commands by sending a serial break */
2390 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
2395 if (s
->do_telnetopt
>= 4) {
2396 s
->do_telnetopt
= 1;
2399 if ((unsigned char)buf
[i
] == IAC
) {
2400 s
->do_telnetopt
= 2;
2411 static int tcp_get_msgfd(CharDriverState
*chr
)
2413 TCPCharDriver
*s
= chr
->opaque
;
2420 static void unix_process_msgfd(CharDriverState
*chr
, struct msghdr
*msg
)
2422 TCPCharDriver
*s
= chr
->opaque
;
2423 struct cmsghdr
*cmsg
;
2425 for (cmsg
= CMSG_FIRSTHDR(msg
); cmsg
; cmsg
= CMSG_NXTHDR(msg
, cmsg
)) {
2428 if (cmsg
->cmsg_len
!= CMSG_LEN(sizeof(int)) ||
2429 cmsg
->cmsg_level
!= SOL_SOCKET
||
2430 cmsg
->cmsg_type
!= SCM_RIGHTS
)
2433 fd
= *((int *)CMSG_DATA(cmsg
));
2437 #ifndef MSG_CMSG_CLOEXEC
2438 qemu_set_cloexec(fd
);
2446 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2448 TCPCharDriver
*s
= chr
->opaque
;
2449 struct msghdr msg
= { NULL
, };
2450 struct iovec iov
[1];
2452 struct cmsghdr cmsg
;
2453 char control
[CMSG_SPACE(sizeof(int))];
2458 iov
[0].iov_base
= buf
;
2459 iov
[0].iov_len
= len
;
2463 msg
.msg_control
= &msg_control
;
2464 msg
.msg_controllen
= sizeof(msg_control
);
2466 #ifdef MSG_CMSG_CLOEXEC
2467 flags
|= MSG_CMSG_CLOEXEC
;
2469 ret
= recvmsg(s
->fd
, &msg
, flags
);
2470 if (ret
> 0 && s
->is_unix
) {
2471 unix_process_msgfd(chr
, &msg
);
2477 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2479 TCPCharDriver
*s
= chr
->opaque
;
2480 return qemu_recv(s
->fd
, buf
, len
, 0);
2484 static GSource
*tcp_chr_add_watch(CharDriverState
*chr
, GIOCondition cond
)
2486 TCPCharDriver
*s
= chr
->opaque
;
2487 return g_io_create_watch(s
->chan
, cond
);
2490 static gboolean
tcp_chr_read(GIOChannel
*chan
, GIOCondition cond
, void *opaque
)
2492 CharDriverState
*chr
= opaque
;
2493 TCPCharDriver
*s
= chr
->opaque
;
2494 uint8_t buf
[READ_BUF_LEN
];
2497 if (!s
->connected
|| s
->max_size
<= 0) {
2501 if (len
> s
->max_size
)
2503 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
2505 /* connection closed */
2507 if (s
->listen_chan
) {
2508 s
->listen_tag
= g_io_add_watch(s
->listen_chan
, G_IO_IN
, tcp_chr_accept
, chr
);
2510 g_source_remove(s
->tag
);
2512 g_io_channel_unref(s
->chan
);
2516 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2517 } else if (size
> 0) {
2518 if (s
->do_telnetopt
)
2519 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
2521 qemu_chr_be_write(chr
, buf
, size
);
2528 CharDriverState
*qemu_chr_open_eventfd(int eventfd
)
2530 return qemu_chr_open_fd(eventfd
, eventfd
);
2534 static void tcp_chr_connect(void *opaque
)
2536 CharDriverState
*chr
= opaque
;
2537 TCPCharDriver
*s
= chr
->opaque
;
2541 s
->tag
= io_add_watch_poll(s
->chan
, tcp_chr_read_poll
, tcp_chr_read
, chr
);
2543 qemu_chr_generic_open(chr
);
2546 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2547 static void tcp_chr_telnet_init(int fd
)
2550 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2551 IACSET(buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2552 send(fd
, (char *)buf
, 3, 0);
2553 IACSET(buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2554 send(fd
, (char *)buf
, 3, 0);
2555 IACSET(buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2556 send(fd
, (char *)buf
, 3, 0);
2557 IACSET(buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2558 send(fd
, (char *)buf
, 3, 0);
2561 static int tcp_chr_add_client(CharDriverState
*chr
, int fd
)
2563 TCPCharDriver
*s
= chr
->opaque
;
2567 socket_set_nonblock(fd
);
2569 socket_set_nodelay(fd
);
2571 s
->chan
= io_channel_from_socket(fd
);
2572 g_source_remove(s
->listen_tag
);
2574 tcp_chr_connect(chr
);
2579 static gboolean
tcp_chr_accept(GIOChannel
*channel
, GIOCondition cond
, void *opaque
)
2581 CharDriverState
*chr
= opaque
;
2582 TCPCharDriver
*s
= chr
->opaque
;
2583 struct sockaddr_in saddr
;
2585 struct sockaddr_un uaddr
;
2587 struct sockaddr
*addr
;
2594 len
= sizeof(uaddr
);
2595 addr
= (struct sockaddr
*)&uaddr
;
2599 len
= sizeof(saddr
);
2600 addr
= (struct sockaddr
*)&saddr
;
2602 fd
= qemu_accept(s
->listen_fd
, addr
, &len
);
2603 if (fd
< 0 && errno
!= EINTR
) {
2605 } else if (fd
>= 0) {
2606 if (s
->do_telnetopt
)
2607 tcp_chr_telnet_init(fd
);
2611 if (tcp_chr_add_client(chr
, fd
) < 0)
2617 static void tcp_chr_close(CharDriverState
*chr
)
2619 TCPCharDriver
*s
= chr
->opaque
;
2622 g_source_remove(s
->tag
);
2625 g_io_channel_unref(s
->chan
);
2629 if (s
->listen_fd
>= 0) {
2630 if (s
->listen_tag
) {
2631 g_source_remove(s
->listen_tag
);
2633 if (s
->listen_chan
) {
2634 g_io_channel_unref(s
->listen_chan
);
2636 closesocket(s
->listen_fd
);
2639 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2642 static CharDriverState
*qemu_chr_open_socket_fd(int fd
, bool do_nodelay
,
2643 bool is_listen
, bool is_telnet
,
2644 bool is_waitconnect
,
2647 CharDriverState
*chr
= NULL
;
2648 TCPCharDriver
*s
= NULL
;
2649 char host
[NI_MAXHOST
], serv
[NI_MAXSERV
];
2650 const char *left
= "", *right
= "";
2651 struct sockaddr_storage ss
;
2652 socklen_t ss_len
= sizeof(ss
);
2654 memset(&ss
, 0, ss_len
);
2655 if (getsockname(fd
, (struct sockaddr
*) &ss
, &ss_len
) != 0) {
2656 error_setg(errp
, "getsockname: %s", strerror(errno
));
2660 chr
= g_malloc0(sizeof(CharDriverState
));
2661 s
= g_malloc0(sizeof(TCPCharDriver
));
2668 chr
->filename
= g_malloc(256);
2669 switch (ss
.ss_family
) {
2673 snprintf(chr
->filename
, 256, "unix:%s%s",
2674 ((struct sockaddr_un
*)(&ss
))->sun_path
,
2675 is_listen
? ",server" : "");
2683 s
->do_nodelay
= do_nodelay
;
2684 getnameinfo((struct sockaddr
*) &ss
, ss_len
, host
, sizeof(host
),
2685 serv
, sizeof(serv
), NI_NUMERICHOST
| NI_NUMERICSERV
);
2686 snprintf(chr
->filename
, 256, "%s:%s%s%s:%s%s",
2687 is_telnet
? "telnet" : "tcp",
2688 left
, host
, right
, serv
,
2689 is_listen
? ",server" : "");
2694 chr
->chr_write
= tcp_chr_write
;
2695 chr
->chr_close
= tcp_chr_close
;
2696 chr
->get_msgfd
= tcp_get_msgfd
;
2697 chr
->chr_add_client
= tcp_chr_add_client
;
2698 chr
->chr_add_watch
= tcp_chr_add_watch
;
2702 s
->listen_chan
= io_channel_from_socket(s
->listen_fd
);
2703 s
->listen_tag
= g_io_add_watch(s
->listen_chan
, G_IO_IN
, tcp_chr_accept
, chr
);
2705 s
->do_telnetopt
= 1;
2710 socket_set_nodelay(fd
);
2711 s
->chan
= io_channel_from_socket(s
->fd
);
2712 tcp_chr_connect(chr
);
2715 if (is_listen
&& is_waitconnect
) {
2716 printf("QEMU waiting for connection on: %s\n",
2718 tcp_chr_accept(s
->listen_chan
, G_IO_IN
, chr
);
2719 socket_set_nonblock(s
->listen_fd
);
2724 static CharDriverState
*qemu_chr_open_socket(QemuOpts
*opts
)
2726 CharDriverState
*chr
= NULL
;
2727 Error
*local_err
= NULL
;
2735 is_listen
= qemu_opt_get_bool(opts
, "server", 0);
2736 is_waitconnect
= qemu_opt_get_bool(opts
, "wait", 1);
2737 is_telnet
= qemu_opt_get_bool(opts
, "telnet", 0);
2738 do_nodelay
= !qemu_opt_get_bool(opts
, "delay", 1);
2739 is_unix
= qemu_opt_get(opts
, "path") != NULL
;
2745 fd
= unix_listen_opts(opts
, &local_err
);
2747 fd
= unix_connect_opts(opts
, &local_err
, NULL
, NULL
);
2751 fd
= inet_listen_opts(opts
, 0, &local_err
);
2753 fd
= inet_connect_opts(opts
, &local_err
, NULL
, NULL
);
2760 if (!is_waitconnect
)
2761 socket_set_nonblock(fd
);
2763 chr
= qemu_chr_open_socket_fd(fd
, do_nodelay
, is_listen
, is_telnet
,
2764 is_waitconnect
, &local_err
);
2765 if (error_is_set(&local_err
)) {
2773 qerror_report_err(local_err
);
2774 error_free(local_err
);
2780 g_free(chr
->opaque
);
2786 /***********************************************************/
2787 /* Memory chardev */
2790 size_t outbuf_capacity
;
2794 static int mem_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2796 MemoryDriver
*d
= chr
->opaque
;
2798 /* TODO: the QString implementation has the same code, we should
2799 * introduce a generic way to do this in cutils.c */
2800 if (d
->outbuf_capacity
< d
->outbuf_size
+ len
) {
2802 d
->outbuf_capacity
+= len
;
2803 d
->outbuf_capacity
*= 2;
2804 d
->outbuf
= g_realloc(d
->outbuf
, d
->outbuf_capacity
);
2807 memcpy(d
->outbuf
+ d
->outbuf_size
, buf
, len
);
2808 d
->outbuf_size
+= len
;
2813 void qemu_chr_init_mem(CharDriverState
*chr
)
2817 d
= g_malloc(sizeof(*d
));
2819 d
->outbuf_capacity
= 4096;
2820 d
->outbuf
= g_malloc0(d
->outbuf_capacity
);
2822 memset(chr
, 0, sizeof(*chr
));
2824 chr
->chr_write
= mem_chr_write
;
2827 QString
*qemu_chr_mem_to_qs(CharDriverState
*chr
)
2829 MemoryDriver
*d
= chr
->opaque
;
2830 return qstring_from_substr((char *) d
->outbuf
, 0, d
->outbuf_size
- 1);
2833 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2834 void qemu_chr_close_mem(CharDriverState
*chr
)
2836 MemoryDriver
*d
= chr
->opaque
;
2839 g_free(chr
->opaque
);
2841 chr
->chr_write
= NULL
;
2844 size_t qemu_chr_mem_osize(const CharDriverState
*chr
)
2846 const MemoryDriver
*d
= chr
->opaque
;
2847 return d
->outbuf_size
;
2850 /*********************************************************/
2851 /* Ring buffer chardev */
2858 } RingBufCharDriver
;
2860 static size_t ringbuf_count(const CharDriverState
*chr
)
2862 const RingBufCharDriver
*d
= chr
->opaque
;
2864 return d
->prod
- d
->cons
;
2867 static int ringbuf_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2869 RingBufCharDriver
*d
= chr
->opaque
;
2872 if (!buf
|| (len
< 0)) {
2876 for (i
= 0; i
< len
; i
++ ) {
2877 d
->cbuf
[d
->prod
++ & (d
->size
- 1)] = buf
[i
];
2878 if (d
->prod
- d
->cons
> d
->size
) {
2879 d
->cons
= d
->prod
- d
->size
;
2886 static int ringbuf_chr_read(CharDriverState
*chr
, uint8_t *buf
, int len
)
2888 RingBufCharDriver
*d
= chr
->opaque
;
2891 for (i
= 0; i
< len
&& d
->cons
!= d
->prod
; i
++) {
2892 buf
[i
] = d
->cbuf
[d
->cons
++ & (d
->size
- 1)];
2898 static void ringbuf_chr_close(struct CharDriverState
*chr
)
2900 RingBufCharDriver
*d
= chr
->opaque
;
2907 static CharDriverState
*qemu_chr_open_ringbuf(ChardevRingbuf
*opts
,
2910 CharDriverState
*chr
;
2911 RingBufCharDriver
*d
;
2913 chr
= g_malloc0(sizeof(CharDriverState
));
2914 d
= g_malloc(sizeof(*d
));
2916 d
->size
= opts
->has_size
? opts
->size
: 65536;
2918 /* The size must be power of 2 */
2919 if (d
->size
& (d
->size
- 1)) {
2920 error_setg(errp
, "size of ringbuf chardev must be power of two");
2926 d
->cbuf
= g_malloc0(d
->size
);
2929 chr
->chr_write
= ringbuf_chr_write
;
2930 chr
->chr_close
= ringbuf_chr_close
;
2940 static bool chr_is_ringbuf(const CharDriverState
*chr
)
2942 return chr
->chr_write
== ringbuf_chr_write
;
2945 void qmp_ringbuf_write(const char *device
, const char *data
,
2946 bool has_format
, enum DataFormat format
,
2949 CharDriverState
*chr
;
2950 const uint8_t *write_data
;
2954 chr
= qemu_chr_find(device
);
2956 error_setg(errp
, "Device '%s' not found", device
);
2960 if (!chr_is_ringbuf(chr
)) {
2961 error_setg(errp
,"%s is not a ringbuf device", device
);
2965 if (has_format
&& (format
== DATA_FORMAT_BASE64
)) {
2966 write_data
= g_base64_decode(data
, &write_count
);
2968 write_data
= (uint8_t *)data
;
2969 write_count
= strlen(data
);
2972 ret
= ringbuf_chr_write(chr
, write_data
, write_count
);
2974 if (write_data
!= (uint8_t *)data
) {
2975 g_free((void *)write_data
);
2979 error_setg(errp
, "Failed to write to device %s", device
);
2984 char *qmp_ringbuf_read(const char *device
, int64_t size
,
2985 bool has_format
, enum DataFormat format
,
2988 CharDriverState
*chr
;
2993 chr
= qemu_chr_find(device
);
2995 error_setg(errp
, "Device '%s' not found", device
);
2999 if (!chr_is_ringbuf(chr
)) {
3000 error_setg(errp
,"%s is not a ringbuf device", device
);
3005 error_setg(errp
, "size must be greater than zero");
3009 count
= ringbuf_count(chr
);
3010 size
= size
> count
? count
: size
;
3011 read_data
= g_malloc(size
+ 1);
3013 ringbuf_chr_read(chr
, read_data
, size
);
3015 if (has_format
&& (format
== DATA_FORMAT_BASE64
)) {
3016 data
= g_base64_encode(read_data
, size
);
3020 * FIXME should read only complete, valid UTF-8 characters up
3021 * to @size bytes. Invalid sequences should be replaced by a
3022 * suitable replacement character. Except when (and only
3023 * when) ring buffer lost characters since last read, initial
3024 * continuation characters should be dropped.
3026 read_data
[size
] = 0;
3027 data
= (char *)read_data
;
3033 QemuOpts
*qemu_chr_parse_compat(const char *label
, const char *filename
)
3035 char host
[65], port
[33], width
[8], height
[8];
3039 Error
*local_err
= NULL
;
3041 opts
= qemu_opts_create(qemu_find_opts("chardev"), label
, 1, &local_err
);
3042 if (error_is_set(&local_err
)) {
3043 qerror_report_err(local_err
);
3044 error_free(local_err
);
3048 if (strstart(filename
, "mon:", &p
)) {
3050 qemu_opt_set(opts
, "mux", "on");
3053 if (strcmp(filename
, "null") == 0 ||
3054 strcmp(filename
, "pty") == 0 ||
3055 strcmp(filename
, "msmouse") == 0 ||
3056 strcmp(filename
, "braille") == 0 ||
3057 strcmp(filename
, "stdio") == 0) {
3058 qemu_opt_set(opts
, "backend", filename
);
3061 if (strstart(filename
, "vc", &p
)) {
3062 qemu_opt_set(opts
, "backend", "vc");
3064 if (sscanf(p
+1, "%8[0-9]x%8[0-9]", width
, height
) == 2) {
3066 qemu_opt_set(opts
, "width", width
);
3067 qemu_opt_set(opts
, "height", height
);
3068 } else if (sscanf(p
+1, "%8[0-9]Cx%8[0-9]C", width
, height
) == 2) {
3070 qemu_opt_set(opts
, "cols", width
);
3071 qemu_opt_set(opts
, "rows", height
);
3078 if (strcmp(filename
, "con:") == 0) {
3079 qemu_opt_set(opts
, "backend", "console");
3082 if (strstart(filename
, "COM", NULL
)) {
3083 qemu_opt_set(opts
, "backend", "serial");
3084 qemu_opt_set(opts
, "path", filename
);
3087 if (strstart(filename
, "file:", &p
)) {
3088 qemu_opt_set(opts
, "backend", "file");
3089 qemu_opt_set(opts
, "path", p
);
3092 if (strstart(filename
, "pipe:", &p
)) {
3093 qemu_opt_set(opts
, "backend", "pipe");
3094 qemu_opt_set(opts
, "path", p
);
3097 if (strstart(filename
, "tcp:", &p
) ||
3098 strstart(filename
, "telnet:", &p
)) {
3099 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
3101 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1)
3104 qemu_opt_set(opts
, "backend", "socket");
3105 qemu_opt_set(opts
, "host", host
);
3106 qemu_opt_set(opts
, "port", port
);
3107 if (p
[pos
] == ',') {
3108 if (qemu_opts_do_parse(opts
, p
+pos
+1, NULL
) != 0)
3111 if (strstart(filename
, "telnet:", &p
))
3112 qemu_opt_set(opts
, "telnet", "on");
3115 if (strstart(filename
, "udp:", &p
)) {
3116 qemu_opt_set(opts
, "backend", "udp");
3117 if (sscanf(p
, "%64[^:]:%32[^@,]%n", host
, port
, &pos
) < 2) {
3119 if (sscanf(p
, ":%32[^@,]%n", port
, &pos
) < 1) {
3123 qemu_opt_set(opts
, "host", host
);
3124 qemu_opt_set(opts
, "port", port
);
3125 if (p
[pos
] == '@') {
3127 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
3129 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
3133 qemu_opt_set(opts
, "localaddr", host
);
3134 qemu_opt_set(opts
, "localport", port
);
3138 if (strstart(filename
, "unix:", &p
)) {
3139 qemu_opt_set(opts
, "backend", "socket");
3140 if (qemu_opts_do_parse(opts
, p
, "path") != 0)
3144 if (strstart(filename
, "/dev/parport", NULL
) ||
3145 strstart(filename
, "/dev/ppi", NULL
)) {
3146 qemu_opt_set(opts
, "backend", "parport");
3147 qemu_opt_set(opts
, "path", filename
);
3150 if (strstart(filename
, "/dev/", NULL
)) {
3151 qemu_opt_set(opts
, "backend", "tty");
3152 qemu_opt_set(opts
, "path", filename
);
3157 qemu_opts_del(opts
);
3161 static void qemu_chr_parse_file_out(QemuOpts
*opts
, ChardevBackend
*backend
,
3164 const char *path
= qemu_opt_get(opts
, "path");
3167 error_setg(errp
, "chardev: file: no filename given");
3170 backend
->file
= g_new0(ChardevFile
, 1);
3171 backend
->file
->out
= g_strdup(path
);
3174 static void qemu_chr_parse_stdio(QemuOpts
*opts
, ChardevBackend
*backend
,
3177 backend
->stdio
= g_new0(ChardevStdio
, 1);
3178 backend
->stdio
->has_signal
= true;
3179 backend
->stdio
->signal
=
3180 qemu_opt_get_bool(opts
, "signal", display_type
!= DT_NOGRAPHIC
);
3183 static void qemu_chr_parse_serial(QemuOpts
*opts
, ChardevBackend
*backend
,
3186 const char *device
= qemu_opt_get(opts
, "path");
3188 if (device
== NULL
) {
3189 error_setg(errp
, "chardev: serial/tty: no device path given");
3192 backend
->serial
= g_new0(ChardevHostdev
, 1);
3193 backend
->serial
->device
= g_strdup(device
);
3196 static void qemu_chr_parse_parallel(QemuOpts
*opts
, ChardevBackend
*backend
,
3199 const char *device
= qemu_opt_get(opts
, "path");
3201 if (device
== NULL
) {
3202 error_setg(errp
, "chardev: parallel: no device path given");
3205 backend
->parallel
= g_new0(ChardevHostdev
, 1);
3206 backend
->parallel
->device
= g_strdup(device
);
3209 static void qemu_chr_parse_pipe(QemuOpts
*opts
, ChardevBackend
*backend
,
3212 const char *device
= qemu_opt_get(opts
, "path");
3214 if (device
== NULL
) {
3215 error_setg(errp
, "chardev: pipe: no device path given");
3218 backend
->pipe
= g_new0(ChardevHostdev
, 1);
3219 backend
->pipe
->device
= g_strdup(device
);
3222 static void qemu_chr_parse_ringbuf(QemuOpts
*opts
, ChardevBackend
*backend
,
3227 backend
->memory
= g_new0(ChardevRingbuf
, 1);
3229 val
= qemu_opt_get_number(opts
, "size", 0);
3231 backend
->memory
->has_size
= true;
3232 backend
->memory
->size
= val
;
3236 typedef struct CharDriver
{
3239 CharDriverState
*(*open
)(QemuOpts
*opts
);
3240 /* new, qapi-based */
3242 void (*parse
)(QemuOpts
*opts
, ChardevBackend
*backend
, Error
**errp
);
3245 static GSList
*backends
;
3247 void register_char_driver(const char *name
, CharDriverState
*(*open
)(QemuOpts
*))
3251 s
= g_malloc0(sizeof(*s
));
3252 s
->name
= g_strdup(name
);
3255 backends
= g_slist_append(backends
, s
);
3258 void register_char_driver_qapi(const char *name
, int kind
,
3259 void (*parse
)(QemuOpts
*opts
, ChardevBackend
*backend
, Error
**errp
))
3263 s
= g_malloc0(sizeof(*s
));
3264 s
->name
= g_strdup(name
);
3268 backends
= g_slist_append(backends
, s
);
3271 CharDriverState
*qemu_chr_new_from_opts(QemuOpts
*opts
,
3272 void (*init
)(struct CharDriverState
*s
),
3276 CharDriverState
*chr
;
3279 if (qemu_opts_id(opts
) == NULL
) {
3280 error_setg(errp
, "chardev: no id specified");
3284 if (qemu_opt_get(opts
, "backend") == NULL
) {
3285 error_setg(errp
, "chardev: \"%s\" missing backend",
3286 qemu_opts_id(opts
));
3289 for (i
= backends
; i
; i
= i
->next
) {
3292 if (strcmp(cd
->name
, qemu_opt_get(opts
, "backend")) == 0) {
3297 error_setg(errp
, "chardev: backend \"%s\" not found",
3298 qemu_opt_get(opts
, "backend"));
3303 /* using new, qapi init */
3304 ChardevBackend
*backend
= g_new0(ChardevBackend
, 1);
3305 ChardevReturn
*ret
= NULL
;
3306 const char *id
= qemu_opts_id(opts
);
3307 const char *bid
= NULL
;
3309 if (qemu_opt_get_bool(opts
, "mux", 0)) {
3310 bid
= g_strdup_printf("%s-base", id
);
3314 backend
->kind
= cd
->kind
;
3316 cd
->parse(opts
, backend
, errp
);
3317 if (error_is_set(errp
)) {
3321 ret
= qmp_chardev_add(bid
? bid
: id
, backend
, errp
);
3322 if (error_is_set(errp
)) {
3327 qapi_free_ChardevBackend(backend
);
3328 qapi_free_ChardevReturn(ret
);
3329 backend
= g_new0(ChardevBackend
, 1);
3330 backend
->mux
= g_new0(ChardevMux
, 1);
3331 backend
->kind
= CHARDEV_BACKEND_KIND_MUX
;
3332 backend
->mux
->chardev
= g_strdup(bid
);
3333 ret
= qmp_chardev_add(id
, backend
, errp
);
3334 if (error_is_set(errp
)) {
3339 chr
= qemu_chr_find(id
);
3342 qapi_free_ChardevBackend(backend
);
3343 qapi_free_ChardevReturn(ret
);
3347 chr
= cd
->open(opts
);
3349 error_setg(errp
, "chardev: opening backend \"%s\" failed",
3350 qemu_opt_get(opts
, "backend"));
3355 chr
->filename
= g_strdup(qemu_opt_get(opts
, "backend"));
3357 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3359 if (qemu_opt_get_bool(opts
, "mux", 0)) {
3360 CharDriverState
*base
= chr
;
3361 int len
= strlen(qemu_opts_id(opts
)) + 6;
3362 base
->label
= g_malloc(len
);
3363 snprintf(base
->label
, len
, "%s-base", qemu_opts_id(opts
));
3364 chr
= qemu_chr_open_mux(base
);
3365 chr
->filename
= base
->filename
;
3366 chr
->avail_connections
= MAX_MUX
;
3367 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3369 chr
->avail_connections
= 1;
3371 chr
->label
= g_strdup(qemu_opts_id(opts
));
3376 qemu_opts_del(opts
);
3380 CharDriverState
*qemu_chr_new(const char *label
, const char *filename
, void (*init
)(struct CharDriverState
*s
))
3383 CharDriverState
*chr
;
3387 if (strstart(filename
, "chardev:", &p
)) {
3388 return qemu_chr_find(p
);
3391 opts
= qemu_chr_parse_compat(label
, filename
);
3395 chr
= qemu_chr_new_from_opts(opts
, init
, &err
);
3396 if (error_is_set(&err
)) {
3397 fprintf(stderr
, "%s\n", error_get_pretty(err
));
3400 if (chr
&& qemu_opt_get_bool(opts
, "mux", 0)) {
3401 monitor_init(chr
, MONITOR_USE_READLINE
);
3406 void qemu_chr_fe_set_echo(struct CharDriverState
*chr
, bool echo
)
3408 if (chr
->chr_set_echo
) {
3409 chr
->chr_set_echo(chr
, echo
);
3413 void qemu_chr_fe_open(struct CharDriverState
*chr
)
3415 if (chr
->chr_guest_open
) {
3416 chr
->chr_guest_open(chr
);
3420 void qemu_chr_fe_close(struct CharDriverState
*chr
)
3422 if (chr
->chr_guest_close
) {
3423 chr
->chr_guest_close(chr
);
3427 int qemu_chr_fe_add_watch(CharDriverState
*s
, GIOCondition cond
,
3428 GIOFunc func
, void *user_data
)
3433 if (s
->chr_add_watch
== NULL
) {
3437 src
= s
->chr_add_watch(s
, cond
);
3438 g_source_set_callback(src
, (GSourceFunc
)func
, user_data
, NULL
);
3439 tag
= g_source_attach(src
, NULL
);
3440 g_source_unref(src
);
3445 void qemu_chr_delete(CharDriverState
*chr
)
3447 QTAILQ_REMOVE(&chardevs
, chr
, next
);
3448 if (chr
->chr_close
) {
3449 chr
->chr_close(chr
);
3451 g_free(chr
->filename
);
3454 qemu_opts_del(chr
->opts
);
3459 ChardevInfoList
*qmp_query_chardev(Error
**errp
)
3461 ChardevInfoList
*chr_list
= NULL
;
3462 CharDriverState
*chr
;
3464 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
3465 ChardevInfoList
*info
= g_malloc0(sizeof(*info
));
3466 info
->value
= g_malloc0(sizeof(*info
->value
));
3467 info
->value
->label
= g_strdup(chr
->label
);
3468 info
->value
->filename
= g_strdup(chr
->filename
);
3470 info
->next
= chr_list
;
3477 CharDriverState
*qemu_chr_find(const char *name
)
3479 CharDriverState
*chr
;
3481 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
3482 if (strcmp(chr
->label
, name
) != 0)
3489 /* Get a character (serial) device interface. */
3490 CharDriverState
*qemu_char_get_next_serial(void)
3492 static int next_serial
;
3494 /* FIXME: This function needs to go away: use chardev properties! */
3495 return serial_hds
[next_serial
++];
3498 QemuOptsList qemu_chardev_opts
= {
3500 .implied_opt_name
= "backend",
3501 .head
= QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts
.head
),
3505 .type
= QEMU_OPT_STRING
,
3508 .type
= QEMU_OPT_STRING
,
3511 .type
= QEMU_OPT_STRING
,
3514 .type
= QEMU_OPT_STRING
,
3516 .name
= "localaddr",
3517 .type
= QEMU_OPT_STRING
,
3519 .name
= "localport",
3520 .type
= QEMU_OPT_STRING
,
3523 .type
= QEMU_OPT_NUMBER
,
3526 .type
= QEMU_OPT_BOOL
,
3529 .type
= QEMU_OPT_BOOL
,
3532 .type
= QEMU_OPT_BOOL
,
3535 .type
= QEMU_OPT_BOOL
,
3538 .type
= QEMU_OPT_BOOL
,
3541 .type
= QEMU_OPT_BOOL
,
3544 .type
= QEMU_OPT_NUMBER
,
3547 .type
= QEMU_OPT_NUMBER
,
3550 .type
= QEMU_OPT_NUMBER
,
3553 .type
= QEMU_OPT_NUMBER
,
3556 .type
= QEMU_OPT_BOOL
,
3559 .type
= QEMU_OPT_BOOL
,
3562 .type
= QEMU_OPT_STRING
,
3565 .type
= QEMU_OPT_NUMBER
,
3568 .type
= QEMU_OPT_SIZE
,
3570 { /* end of list */ }
3576 static CharDriverState
*qmp_chardev_open_file(ChardevFile
*file
, Error
**errp
)
3581 error_setg(errp
, "input file not supported");
3585 out
= CreateFile(file
->out
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
3586 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
3587 if (out
== INVALID_HANDLE_VALUE
) {
3588 error_setg(errp
, "open %s failed", file
->out
);
3591 return qemu_chr_open_win_file(out
);
3594 static CharDriverState
*qmp_chardev_open_serial(ChardevHostdev
*serial
,
3597 return qemu_chr_open_win_path(serial
->device
);
3600 static CharDriverState
*qmp_chardev_open_parallel(ChardevHostdev
*parallel
,
3603 error_setg(errp
, "character device backend type 'parallel' not supported");
3609 static int qmp_chardev_open_file_source(char *src
, int flags
,
3614 TFR(fd
= qemu_open(src
, flags
, 0666));
3616 error_setg(errp
, "open %s: %s", src
, strerror(errno
));
3621 static CharDriverState
*qmp_chardev_open_file(ChardevFile
*file
, Error
**errp
)
3623 int flags
, in
= -1, out
= -1;
3625 flags
= O_WRONLY
| O_TRUNC
| O_CREAT
| O_BINARY
;
3626 out
= qmp_chardev_open_file_source(file
->out
, flags
, errp
);
3627 if (error_is_set(errp
)) {
3633 in
= qmp_chardev_open_file_source(file
->in
, flags
, errp
);
3634 if (error_is_set(errp
)) {
3640 return qemu_chr_open_fd(in
, out
);
3643 static CharDriverState
*qmp_chardev_open_serial(ChardevHostdev
*serial
,
3646 #ifdef HAVE_CHARDEV_TTY
3649 fd
= qmp_chardev_open_file_source(serial
->device
, O_RDWR
, errp
);
3650 if (error_is_set(errp
)) {
3653 socket_set_nonblock(fd
);
3654 return qemu_chr_open_tty_fd(fd
);
3656 error_setg(errp
, "character device backend type 'serial' not supported");
3661 static CharDriverState
*qmp_chardev_open_parallel(ChardevHostdev
*parallel
,
3664 #ifdef HAVE_CHARDEV_PARPORT
3667 fd
= qmp_chardev_open_file_source(parallel
->device
, O_RDWR
, errp
);
3668 if (error_is_set(errp
)) {
3671 return qemu_chr_open_pp_fd(fd
);
3673 error_setg(errp
, "character device backend type 'parallel' not supported");
3680 static CharDriverState
*qmp_chardev_open_socket(ChardevSocket
*sock
,
3683 SocketAddress
*addr
= sock
->addr
;
3684 bool do_nodelay
= sock
->has_nodelay
? sock
->nodelay
: false;
3685 bool is_listen
= sock
->has_server
? sock
->server
: true;
3686 bool is_telnet
= sock
->has_telnet
? sock
->telnet
: false;
3687 bool is_waitconnect
= sock
->has_wait
? sock
->wait
: false;
3691 fd
= socket_listen(addr
, errp
);
3693 fd
= socket_connect(addr
, errp
, NULL
, NULL
);
3695 if (error_is_set(errp
)) {
3698 return qemu_chr_open_socket_fd(fd
, do_nodelay
, is_listen
,
3699 is_telnet
, is_waitconnect
, errp
);
3702 static CharDriverState
*qmp_chardev_open_dgram(ChardevDgram
*dgram
,
3707 fd
= socket_dgram(dgram
->remote
, dgram
->local
, errp
);
3708 if (error_is_set(errp
)) {
3711 return qemu_chr_open_udp_fd(fd
);
3714 ChardevReturn
*qmp_chardev_add(const char *id
, ChardevBackend
*backend
,
3717 ChardevReturn
*ret
= g_new0(ChardevReturn
, 1);
3718 CharDriverState
*base
, *chr
= NULL
;
3720 chr
= qemu_chr_find(id
);
3722 error_setg(errp
, "Chardev '%s' already exists", id
);
3727 switch (backend
->kind
) {
3728 case CHARDEV_BACKEND_KIND_FILE
:
3729 chr
= qmp_chardev_open_file(backend
->file
, errp
);
3731 case CHARDEV_BACKEND_KIND_SERIAL
:
3732 chr
= qmp_chardev_open_serial(backend
->serial
, errp
);
3734 case CHARDEV_BACKEND_KIND_PARALLEL
:
3735 chr
= qmp_chardev_open_parallel(backend
->parallel
, errp
);
3737 case CHARDEV_BACKEND_KIND_PIPE
:
3738 chr
= qemu_chr_open_pipe(backend
->pipe
);
3740 case CHARDEV_BACKEND_KIND_SOCKET
:
3741 chr
= qmp_chardev_open_socket(backend
->socket
, errp
);
3743 case CHARDEV_BACKEND_KIND_DGRAM
:
3744 chr
= qmp_chardev_open_dgram(backend
->dgram
, errp
);
3746 #ifdef HAVE_CHARDEV_TTY
3747 case CHARDEV_BACKEND_KIND_PTY
:
3748 chr
= qemu_chr_open_pty(id
, ret
);
3751 case CHARDEV_BACKEND_KIND_NULL
:
3752 chr
= qemu_chr_open_null();
3754 case CHARDEV_BACKEND_KIND_MUX
:
3755 base
= qemu_chr_find(backend
->mux
->chardev
);
3757 error_setg(errp
, "mux: base chardev %s not found",
3758 backend
->mux
->chardev
);
3761 chr
= qemu_chr_open_mux(base
);
3763 case CHARDEV_BACKEND_KIND_MSMOUSE
:
3764 chr
= qemu_chr_open_msmouse();
3766 #ifdef CONFIG_BRLAPI
3767 case CHARDEV_BACKEND_KIND_BRAILLE
:
3768 chr
= chr_baum_init();
3771 case CHARDEV_BACKEND_KIND_STDIO
:
3772 chr
= qemu_chr_open_stdio(backend
->stdio
);
3775 case CHARDEV_BACKEND_KIND_CONSOLE
:
3776 chr
= qemu_chr_open_win_con();
3780 case CHARDEV_BACKEND_KIND_SPICEVMC
:
3781 chr
= qemu_chr_open_spice_vmc(backend
->spicevmc
->type
);
3783 case CHARDEV_BACKEND_KIND_SPICEPORT
:
3784 chr
= qemu_chr_open_spice_port(backend
->spiceport
->fqdn
);
3787 case CHARDEV_BACKEND_KIND_VC
:
3788 chr
= vc_init(backend
->vc
);
3790 case CHARDEV_BACKEND_KIND_MEMORY
:
3791 chr
= qemu_chr_open_ringbuf(backend
->memory
, errp
);
3794 error_setg(errp
, "unknown chardev backend (%d)", backend
->kind
);
3798 if (chr
== NULL
&& !error_is_set(errp
)) {
3799 error_setg(errp
, "Failed to create chardev");
3802 chr
->label
= g_strdup(id
);
3803 chr
->avail_connections
=
3804 (backend
->kind
== CHARDEV_BACKEND_KIND_MUX
) ? MAX_MUX
: 1;
3805 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
3813 void qmp_chardev_remove(const char *id
, Error
**errp
)
3815 CharDriverState
*chr
;
3817 chr
= qemu_chr_find(id
);
3819 error_setg(errp
, "Chardev '%s' not found", id
);
3822 if (chr
->chr_can_read
|| chr
->chr_read
||
3823 chr
->chr_event
|| chr
->handler_opaque
) {
3824 error_setg(errp
, "Chardev '%s' is busy", id
);
3827 qemu_chr_delete(chr
);
3830 static void register_types(void)
3832 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL
, NULL
);
3833 register_char_driver("socket", qemu_chr_open_socket
);
3834 register_char_driver("udp", qemu_chr_open_udp
);
3835 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY
,
3836 qemu_chr_parse_ringbuf
);
3837 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE
,
3838 qemu_chr_parse_file_out
);
3839 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO
,
3840 qemu_chr_parse_stdio
);
3841 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL
,
3842 qemu_chr_parse_serial
);
3843 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL
,
3844 qemu_chr_parse_serial
);
3845 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL
,
3846 qemu_chr_parse_parallel
);
3847 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL
,
3848 qemu_chr_parse_parallel
);
3849 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY
, NULL
);
3850 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE
, NULL
);
3851 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE
,
3852 qemu_chr_parse_pipe
);
3855 type_init(register_types
);