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"
29 #include "qemu-timer.h"
30 #include "qemu-char.h"
33 #include "hw/msmouse.h"
34 #include "qmp-commands.h"
44 #include <sys/times.h>
48 #include <sys/ioctl.h>
49 #include <sys/resource.h>
50 #include <sys/socket.h>
51 #include <netinet/in.h>
53 #include <arpa/inet.h>
56 #include <sys/select.h>
59 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
61 #include <dev/ppbus/ppi.h>
62 #include <dev/ppbus/ppbconf.h>
63 #if defined(__GLIBC__)
66 #elif defined(__DragonFly__)
68 #include <dev/misc/ppi/ppi.h>
69 #include <bus/ppbus/ppbconf.h>
77 #include <linux/ppdev.h>
78 #include <linux/parport.h>
82 #include <sys/ethernet.h>
83 #include <sys/sockio.h>
84 #include <netinet/arp.h>
85 #include <netinet/in.h>
86 #include <netinet/in_systm.h>
87 #include <netinet/ip.h>
88 #include <netinet/ip_icmp.h> // must come after ip.h
89 #include <netinet/udp.h>
90 #include <netinet/tcp.h>
98 #include "qemu_socket.h"
99 #include "ui/qemu-spice.h"
101 #define READ_BUF_LEN 4096
103 /***********************************************************/
104 /* character device */
106 static QTAILQ_HEAD(CharDriverStateHead
, CharDriverState
) chardevs
=
107 QTAILQ_HEAD_INITIALIZER(chardevs
);
109 void qemu_chr_be_event(CharDriverState
*s
, int event
)
111 /* Keep track if the char device is open */
113 case CHR_EVENT_OPENED
:
116 case CHR_EVENT_CLOSED
:
123 s
->chr_event(s
->handler_opaque
, event
);
126 static void qemu_chr_generic_open_bh(void *opaque
)
128 CharDriverState
*s
= opaque
;
129 qemu_chr_be_event(s
, CHR_EVENT_OPENED
);
130 qemu_bh_delete(s
->bh
);
134 void qemu_chr_generic_open(CharDriverState
*s
)
137 s
->bh
= qemu_bh_new(qemu_chr_generic_open_bh
, s
);
138 qemu_bh_schedule(s
->bh
);
142 int qemu_chr_fe_write(CharDriverState
*s
, const uint8_t *buf
, int len
)
144 return s
->chr_write(s
, buf
, len
);
147 int qemu_chr_fe_ioctl(CharDriverState
*s
, int cmd
, void *arg
)
151 return s
->chr_ioctl(s
, cmd
, arg
);
154 int qemu_chr_be_can_write(CharDriverState
*s
)
156 if (!s
->chr_can_read
)
158 return s
->chr_can_read(s
->handler_opaque
);
161 void qemu_chr_be_write(CharDriverState
*s
, uint8_t *buf
, int len
)
163 s
->chr_read(s
->handler_opaque
, buf
, len
);
166 int qemu_chr_fe_get_msgfd(CharDriverState
*s
)
168 return s
->get_msgfd
? s
->get_msgfd(s
) : -1;
171 int qemu_chr_add_client(CharDriverState
*s
, int fd
)
173 return s
->chr_add_client
? s
->chr_add_client(s
, fd
) : -1;
176 void qemu_chr_accept_input(CharDriverState
*s
)
178 if (s
->chr_accept_input
)
179 s
->chr_accept_input(s
);
182 void qemu_chr_fe_printf(CharDriverState
*s
, const char *fmt
, ...)
184 char buf
[READ_BUF_LEN
];
187 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
188 qemu_chr_fe_write(s
, (uint8_t *)buf
, strlen(buf
));
192 void qemu_chr_add_handlers(CharDriverState
*s
,
193 IOCanReadHandler
*fd_can_read
,
194 IOReadHandler
*fd_read
,
195 IOEventHandler
*fd_event
,
198 if (!opaque
&& !fd_can_read
&& !fd_read
&& !fd_event
) {
199 /* chr driver being released. */
200 ++s
->avail_connections
;
202 s
->chr_can_read
= fd_can_read
;
203 s
->chr_read
= fd_read
;
204 s
->chr_event
= fd_event
;
205 s
->handler_opaque
= opaque
;
206 if (s
->chr_update_read_handler
)
207 s
->chr_update_read_handler(s
);
209 /* We're connecting to an already opened device, so let's make sure we
210 also get the open event */
212 qemu_chr_generic_open(s
);
216 static int null_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
221 static CharDriverState
*qemu_chr_open_null(QemuOpts
*opts
)
223 CharDriverState
*chr
;
225 chr
= g_malloc0(sizeof(CharDriverState
));
226 chr
->chr_write
= null_chr_write
;
230 /* MUX driver for serial I/O splitting */
232 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
233 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
235 IOCanReadHandler
*chr_can_read
[MAX_MUX
];
236 IOReadHandler
*chr_read
[MAX_MUX
];
237 IOEventHandler
*chr_event
[MAX_MUX
];
238 void *ext_opaque
[MAX_MUX
];
239 CharDriverState
*drv
;
244 /* Intermediate input buffer allows to catch escape sequences even if the
245 currently active device is not accepting any input - but only until it
247 unsigned char buffer
[MAX_MUX
][MUX_BUFFER_SIZE
];
252 int64_t timestamps_start
;
256 static int mux_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
258 MuxDriver
*d
= chr
->opaque
;
260 if (!d
->timestamps
) {
261 ret
= d
->drv
->chr_write(d
->drv
, buf
, len
);
266 for (i
= 0; i
< len
; i
++) {
272 ti
= qemu_get_clock_ms(rt_clock
);
273 if (d
->timestamps_start
== -1)
274 d
->timestamps_start
= ti
;
275 ti
-= d
->timestamps_start
;
277 snprintf(buf1
, sizeof(buf1
),
278 "[%02d:%02d:%02d.%03d] ",
283 d
->drv
->chr_write(d
->drv
, (uint8_t *)buf1
, strlen(buf1
));
286 ret
+= d
->drv
->chr_write(d
->drv
, buf
+i
, 1);
287 if (buf
[i
] == '\n') {
295 static const char * const mux_help
[] = {
296 "% h print this help\n\r",
297 "% x exit emulator\n\r",
298 "% s save disk data back to file (if -snapshot)\n\r",
299 "% t toggle console timestamps\n\r"
300 "% b send break (magic sysrq)\n\r",
301 "% c switch between console and monitor\n\r",
306 int term_escape_char
= 0x01; /* ctrl-a is used for escape */
307 static void mux_print_help(CharDriverState
*chr
)
310 char ebuf
[15] = "Escape-Char";
311 char cbuf
[50] = "\n\r";
313 if (term_escape_char
> 0 && term_escape_char
< 26) {
314 snprintf(cbuf
, sizeof(cbuf
), "\n\r");
315 snprintf(ebuf
, sizeof(ebuf
), "C-%c", term_escape_char
- 1 + 'a');
317 snprintf(cbuf
, sizeof(cbuf
),
318 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
321 chr
->chr_write(chr
, (uint8_t *)cbuf
, strlen(cbuf
));
322 for (i
= 0; mux_help
[i
] != NULL
; i
++) {
323 for (j
=0; mux_help
[i
][j
] != '\0'; j
++) {
324 if (mux_help
[i
][j
] == '%')
325 chr
->chr_write(chr
, (uint8_t *)ebuf
, strlen(ebuf
));
327 chr
->chr_write(chr
, (uint8_t *)&mux_help
[i
][j
], 1);
332 static void mux_chr_send_event(MuxDriver
*d
, int mux_nr
, int event
)
334 if (d
->chr_event
[mux_nr
])
335 d
->chr_event
[mux_nr
](d
->ext_opaque
[mux_nr
], event
);
338 static int mux_proc_byte(CharDriverState
*chr
, MuxDriver
*d
, int ch
)
340 if (d
->term_got_escape
) {
341 d
->term_got_escape
= 0;
342 if (ch
== term_escape_char
)
351 const char *term
= "QEMU: Terminated\n\r";
352 chr
->chr_write(chr
,(uint8_t *)term
,strlen(term
));
360 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
363 /* Switch to the next registered device */
364 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
366 if (d
->focus
>= d
->mux_cnt
)
368 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
371 d
->timestamps
= !d
->timestamps
;
372 d
->timestamps_start
= -1;
376 } else if (ch
== term_escape_char
) {
377 d
->term_got_escape
= 1;
385 static void mux_chr_accept_input(CharDriverState
*chr
)
387 MuxDriver
*d
= chr
->opaque
;
390 while (d
->prod
[m
] != d
->cons
[m
] &&
391 d
->chr_can_read
[m
] &&
392 d
->chr_can_read
[m
](d
->ext_opaque
[m
])) {
393 d
->chr_read
[m
](d
->ext_opaque
[m
],
394 &d
->buffer
[m
][d
->cons
[m
]++ & MUX_BUFFER_MASK
], 1);
398 static int mux_chr_can_read(void *opaque
)
400 CharDriverState
*chr
= opaque
;
401 MuxDriver
*d
= chr
->opaque
;
404 if ((d
->prod
[m
] - d
->cons
[m
]) < MUX_BUFFER_SIZE
)
406 if (d
->chr_can_read
[m
])
407 return d
->chr_can_read
[m
](d
->ext_opaque
[m
]);
411 static void mux_chr_read(void *opaque
, const uint8_t *buf
, int size
)
413 CharDriverState
*chr
= opaque
;
414 MuxDriver
*d
= chr
->opaque
;
418 mux_chr_accept_input (opaque
);
420 for(i
= 0; i
< size
; i
++)
421 if (mux_proc_byte(chr
, d
, buf
[i
])) {
422 if (d
->prod
[m
] == d
->cons
[m
] &&
423 d
->chr_can_read
[m
] &&
424 d
->chr_can_read
[m
](d
->ext_opaque
[m
]))
425 d
->chr_read
[m
](d
->ext_opaque
[m
], &buf
[i
], 1);
427 d
->buffer
[m
][d
->prod
[m
]++ & MUX_BUFFER_MASK
] = buf
[i
];
431 static void mux_chr_event(void *opaque
, int event
)
433 CharDriverState
*chr
= opaque
;
434 MuxDriver
*d
= chr
->opaque
;
437 /* Send the event to all registered listeners */
438 for (i
= 0; i
< d
->mux_cnt
; i
++)
439 mux_chr_send_event(d
, i
, event
);
442 static void mux_chr_update_read_handler(CharDriverState
*chr
)
444 MuxDriver
*d
= chr
->opaque
;
446 if (d
->mux_cnt
>= MAX_MUX
) {
447 fprintf(stderr
, "Cannot add I/O handlers, MUX array is full\n");
450 d
->ext_opaque
[d
->mux_cnt
] = chr
->handler_opaque
;
451 d
->chr_can_read
[d
->mux_cnt
] = chr
->chr_can_read
;
452 d
->chr_read
[d
->mux_cnt
] = chr
->chr_read
;
453 d
->chr_event
[d
->mux_cnt
] = chr
->chr_event
;
454 /* Fix up the real driver with mux routines */
455 if (d
->mux_cnt
== 0) {
456 qemu_chr_add_handlers(d
->drv
, mux_chr_can_read
, mux_chr_read
,
459 if (d
->focus
!= -1) {
460 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
462 d
->focus
= d
->mux_cnt
;
464 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
467 static CharDriverState
*qemu_chr_open_mux(CharDriverState
*drv
)
469 CharDriverState
*chr
;
472 chr
= g_malloc0(sizeof(CharDriverState
));
473 d
= g_malloc0(sizeof(MuxDriver
));
478 chr
->chr_write
= mux_chr_write
;
479 chr
->chr_update_read_handler
= mux_chr_update_read_handler
;
480 chr
->chr_accept_input
= mux_chr_accept_input
;
481 /* Frontend guest-open / -close notification is not support with muxes */
482 chr
->chr_guest_open
= NULL
;
483 chr
->chr_guest_close
= NULL
;
485 /* Muxes are always open on creation */
486 qemu_chr_generic_open(chr
);
493 int send_all(int fd
, const void *buf
, int len1
)
499 ret
= send(fd
, buf
, len
, 0);
501 errno
= WSAGetLastError();
502 if (errno
!= WSAEWOULDBLOCK
) {
505 } else if (ret
== 0) {
517 int send_all(int fd
, const void *_buf
, int len1
)
520 const uint8_t *buf
= _buf
;
524 ret
= write(fd
, buf
, len
);
526 if (errno
!= EINTR
&& errno
!= EAGAIN
)
528 } else if (ret
== 0) {
539 #define STDIO_MAX_CLIENTS 1
540 static int stdio_nb_clients
;
550 static int fd_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
552 FDCharDriver
*s
= chr
->opaque
;
553 return send_all(s
->fd_out
, buf
, len
);
556 static int fd_chr_read_poll(void *opaque
)
558 CharDriverState
*chr
= opaque
;
559 FDCharDriver
*s
= chr
->opaque
;
561 s
->max_size
= qemu_chr_be_can_write(chr
);
565 static void fd_chr_read(void *opaque
)
567 CharDriverState
*chr
= opaque
;
568 FDCharDriver
*s
= chr
->opaque
;
570 uint8_t buf
[READ_BUF_LEN
];
573 if (len
> s
->max_size
)
577 size
= read(s
->fd_in
, buf
, len
);
579 /* FD has been closed. Remove it from the active list. */
580 qemu_set_fd_handler2(s
->fd_in
, NULL
, NULL
, NULL
, NULL
);
581 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
585 qemu_chr_be_write(chr
, buf
, size
);
589 static void fd_chr_update_read_handler(CharDriverState
*chr
)
591 FDCharDriver
*s
= chr
->opaque
;
594 if (display_type
== DT_NOGRAPHIC
&& s
->fd_in
== 0) {
596 qemu_set_fd_handler2(s
->fd_in
, fd_chr_read_poll
,
597 fd_chr_read
, NULL
, chr
);
602 static void fd_chr_close(struct CharDriverState
*chr
)
604 FDCharDriver
*s
= chr
->opaque
;
607 if (display_type
== DT_NOGRAPHIC
&& s
->fd_in
== 0) {
609 qemu_set_fd_handler2(s
->fd_in
, NULL
, NULL
, NULL
, NULL
);
614 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
617 /* open a character device to a unix fd */
618 static CharDriverState
*qemu_chr_open_fd(int fd_in
, int fd_out
)
620 CharDriverState
*chr
;
623 chr
= g_malloc0(sizeof(CharDriverState
));
624 s
= g_malloc0(sizeof(FDCharDriver
));
628 chr
->chr_write
= fd_chr_write
;
629 chr
->chr_update_read_handler
= fd_chr_update_read_handler
;
630 chr
->chr_close
= fd_chr_close
;
632 qemu_chr_generic_open(chr
);
637 static CharDriverState
*qemu_chr_open_file_out(QemuOpts
*opts
)
641 TFR(fd_out
= qemu_open(qemu_opt_get(opts
, "path"),
642 O_WRONLY
| O_TRUNC
| O_CREAT
| O_BINARY
, 0666));
645 return qemu_chr_open_fd(-1, fd_out
);
648 static CharDriverState
*qemu_chr_open_pipe(QemuOpts
*opts
)
651 char filename_in
[256], filename_out
[256];
652 const char *filename
= qemu_opt_get(opts
, "path");
654 if (filename
== NULL
) {
655 fprintf(stderr
, "chardev: pipe: no filename given\n");
659 snprintf(filename_in
, 256, "%s.in", filename
);
660 snprintf(filename_out
, 256, "%s.out", filename
);
661 TFR(fd_in
= qemu_open(filename_in
, O_RDWR
| O_BINARY
));
662 TFR(fd_out
= qemu_open(filename_out
, O_RDWR
| O_BINARY
));
663 if (fd_in
< 0 || fd_out
< 0) {
668 TFR(fd_in
= fd_out
= open(filename
, O_RDWR
| O_BINARY
));
672 return qemu_chr_open_fd(fd_in
, fd_out
);
676 /* for STDIO, we handle the case where several clients use it
679 #define TERM_FIFO_MAX_SIZE 1
681 static uint8_t term_fifo
[TERM_FIFO_MAX_SIZE
];
682 static int term_fifo_size
;
684 static int stdio_read_poll(void *opaque
)
686 CharDriverState
*chr
= opaque
;
688 /* try to flush the queue if needed */
689 if (term_fifo_size
!= 0 && qemu_chr_be_can_write(chr
) > 0) {
690 qemu_chr_be_write(chr
, term_fifo
, 1);
693 /* see if we can absorb more chars */
694 if (term_fifo_size
== 0)
700 static void stdio_read(void *opaque
)
704 CharDriverState
*chr
= opaque
;
706 size
= read(0, buf
, 1);
708 /* stdin has been closed. Remove it from the active list. */
709 qemu_set_fd_handler2(0, NULL
, NULL
, NULL
, NULL
);
710 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
714 if (qemu_chr_be_can_write(chr
) > 0) {
715 qemu_chr_be_write(chr
, buf
, 1);
716 } else if (term_fifo_size
== 0) {
717 term_fifo
[term_fifo_size
++] = buf
[0];
722 /* init terminal so that we can grab keys */
723 static struct termios oldtty
;
724 static int old_fd0_flags
;
725 static bool stdio_allow_signal
;
727 static void term_exit(void)
729 tcsetattr (0, TCSANOW
, &oldtty
);
730 fcntl(0, F_SETFL
, old_fd0_flags
);
733 static void qemu_chr_set_echo_stdio(CharDriverState
*chr
, bool echo
)
739 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
740 |INLCR
|IGNCR
|ICRNL
|IXON
);
741 tty
.c_oflag
|= OPOST
;
742 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
743 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
748 /* if graphical mode, we allow Ctrl-C handling */
749 if (!stdio_allow_signal
)
750 tty
.c_lflag
&= ~ISIG
;
752 tcsetattr (0, TCSANOW
, &tty
);
755 static void qemu_chr_close_stdio(struct CharDriverState
*chr
)
759 qemu_set_fd_handler2(0, NULL
, NULL
, NULL
, NULL
);
763 static CharDriverState
*qemu_chr_open_stdio(QemuOpts
*opts
)
765 CharDriverState
*chr
;
767 if (stdio_nb_clients
>= STDIO_MAX_CLIENTS
)
769 if (stdio_nb_clients
== 0) {
770 old_fd0_flags
= fcntl(0, F_GETFL
);
771 tcgetattr (0, &oldtty
);
772 fcntl(0, F_SETFL
, O_NONBLOCK
);
776 chr
= qemu_chr_open_fd(0, 1);
777 chr
->chr_close
= qemu_chr_close_stdio
;
778 chr
->chr_set_echo
= qemu_chr_set_echo_stdio
;
779 qemu_set_fd_handler2(0, stdio_read_poll
, stdio_read
, NULL
, chr
);
781 stdio_allow_signal
= qemu_opt_get_bool(opts
, "signal",
782 display_type
!= DT_NOGRAPHIC
);
783 qemu_chr_fe_set_echo(chr
, false);
789 /* Once Solaris has openpty(), this is going to be removed. */
790 static int openpty(int *amaster
, int *aslave
, char *name
,
791 struct termios
*termp
, struct winsize
*winp
)
794 int mfd
= -1, sfd
= -1;
796 *amaster
= *aslave
= -1;
798 mfd
= open("/dev/ptmx", O_RDWR
| O_NOCTTY
);
802 if (grantpt(mfd
) == -1 || unlockpt(mfd
) == -1)
805 if ((slave
= ptsname(mfd
)) == NULL
)
808 if ((sfd
= open(slave
, O_RDONLY
| O_NOCTTY
)) == -1)
811 if (ioctl(sfd
, I_PUSH
, "ptem") == -1 ||
812 (termp
!= NULL
&& tcgetattr(sfd
, termp
) < 0))
820 ioctl(sfd
, TIOCSWINSZ
, winp
);
831 static void cfmakeraw (struct termios
*termios_p
)
833 termios_p
->c_iflag
&=
834 ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
835 termios_p
->c_oflag
&= ~OPOST
;
836 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
837 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
838 termios_p
->c_cflag
|= CS8
;
840 termios_p
->c_cc
[VMIN
] = 0;
841 termios_p
->c_cc
[VTIME
] = 0;
845 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
846 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
847 || defined(__GLIBC__)
857 static void pty_chr_update_read_handler(CharDriverState
*chr
);
858 static void pty_chr_state(CharDriverState
*chr
, int connected
);
860 static int pty_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
862 PtyCharDriver
*s
= chr
->opaque
;
865 /* guest sends data, check for (re-)connect */
866 pty_chr_update_read_handler(chr
);
869 return send_all(s
->fd
, buf
, len
);
872 static int pty_chr_read_poll(void *opaque
)
874 CharDriverState
*chr
= opaque
;
875 PtyCharDriver
*s
= chr
->opaque
;
877 s
->read_bytes
= qemu_chr_be_can_write(chr
);
878 return s
->read_bytes
;
881 static void pty_chr_read(void *opaque
)
883 CharDriverState
*chr
= opaque
;
884 PtyCharDriver
*s
= chr
->opaque
;
886 uint8_t buf
[READ_BUF_LEN
];
889 if (len
> s
->read_bytes
)
893 size
= read(s
->fd
, buf
, len
);
894 if ((size
== -1 && errno
== EIO
) ||
896 pty_chr_state(chr
, 0);
900 pty_chr_state(chr
, 1);
901 qemu_chr_be_write(chr
, buf
, size
);
905 static void pty_chr_update_read_handler(CharDriverState
*chr
)
907 PtyCharDriver
*s
= chr
->opaque
;
909 qemu_set_fd_handler2(s
->fd
, pty_chr_read_poll
,
910 pty_chr_read
, NULL
, chr
);
913 * Short timeout here: just need wait long enougth that qemu makes
914 * it through the poll loop once. When reconnected we want a
915 * short timeout so we notice it almost instantly. Otherwise
916 * read() gives us -EIO instantly, making pty_chr_state() reset the
917 * timeout to the normal (much longer) poll interval before the
920 qemu_mod_timer(s
->timer
, qemu_get_clock_ms(rt_clock
) + 10);
923 static void pty_chr_state(CharDriverState
*chr
, int connected
)
925 PtyCharDriver
*s
= chr
->opaque
;
928 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
931 /* (re-)connect poll interval for idle guests: once per second.
932 * We check more frequently in case the guests sends data to
933 * the virtual device linked to our pty. */
934 qemu_mod_timer(s
->timer
, qemu_get_clock_ms(rt_clock
) + 1000);
937 qemu_chr_generic_open(chr
);
942 static void pty_chr_timer(void *opaque
)
944 struct CharDriverState
*chr
= opaque
;
945 PtyCharDriver
*s
= chr
->opaque
;
950 /* If we arrive here without polling being cleared due
951 * read returning -EIO, then we are (re-)connected */
952 pty_chr_state(chr
, 1);
957 pty_chr_update_read_handler(chr
);
960 static void pty_chr_close(struct CharDriverState
*chr
)
962 PtyCharDriver
*s
= chr
->opaque
;
964 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
966 qemu_del_timer(s
->timer
);
967 qemu_free_timer(s
->timer
);
969 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
972 static CharDriverState
*qemu_chr_open_pty(QemuOpts
*opts
)
974 CharDriverState
*chr
;
977 int master_fd
, slave_fd
, len
;
978 #if defined(__OpenBSD__) || defined(__DragonFly__)
979 char pty_name
[PATH_MAX
];
980 #define q_ptsname(x) pty_name
982 char *pty_name
= NULL
;
983 #define q_ptsname(x) ptsname(x)
986 if (openpty(&master_fd
, &slave_fd
, pty_name
, NULL
, NULL
) < 0) {
990 /* Set raw attributes on the pty. */
991 tcgetattr(slave_fd
, &tty
);
993 tcsetattr(slave_fd
, TCSAFLUSH
, &tty
);
996 chr
= g_malloc0(sizeof(CharDriverState
));
998 len
= strlen(q_ptsname(master_fd
)) + 5;
999 chr
->filename
= g_malloc(len
);
1000 snprintf(chr
->filename
, len
, "pty:%s", q_ptsname(master_fd
));
1001 qemu_opt_set(opts
, "path", q_ptsname(master_fd
));
1002 fprintf(stderr
, "char device redirected to %s\n", q_ptsname(master_fd
));
1004 s
= g_malloc0(sizeof(PtyCharDriver
));
1006 chr
->chr_write
= pty_chr_write
;
1007 chr
->chr_update_read_handler
= pty_chr_update_read_handler
;
1008 chr
->chr_close
= pty_chr_close
;
1011 s
->timer
= qemu_new_timer_ms(rt_clock
, pty_chr_timer
, chr
);
1016 static void tty_serial_init(int fd
, int speed
,
1017 int parity
, int data_bits
, int stop_bits
)
1023 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1024 speed
, parity
, data_bits
, stop_bits
);
1026 tcgetattr (fd
, &tty
);
1028 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1029 speed
= speed
* 10 / 11;
1046 /* Non-Posix values follow. They may be unsupported on some systems. */
1048 check_speed(115200);
1050 check_speed(230400);
1053 check_speed(460800);
1056 check_speed(500000);
1059 check_speed(576000);
1062 check_speed(921600);
1065 check_speed(1000000);
1068 check_speed(1152000);
1071 check_speed(1500000);
1074 check_speed(2000000);
1077 check_speed(2500000);
1080 check_speed(3000000);
1083 check_speed(3500000);
1086 check_speed(4000000);
1091 cfsetispeed(&tty
, spd
);
1092 cfsetospeed(&tty
, spd
);
1094 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1095 |INLCR
|IGNCR
|ICRNL
|IXON
);
1096 tty
.c_oflag
|= OPOST
;
1097 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
|ISIG
);
1098 tty
.c_cflag
&= ~(CSIZE
|PARENB
|PARODD
|CRTSCTS
|CSTOPB
);
1119 tty
.c_cflag
|= PARENB
;
1122 tty
.c_cflag
|= PARENB
| PARODD
;
1126 tty
.c_cflag
|= CSTOPB
;
1128 tcsetattr (fd
, TCSANOW
, &tty
);
1131 static int tty_serial_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1133 FDCharDriver
*s
= chr
->opaque
;
1136 case CHR_IOCTL_SERIAL_SET_PARAMS
:
1138 QEMUSerialSetParams
*ssp
= arg
;
1139 tty_serial_init(s
->fd_in
, ssp
->speed
, ssp
->parity
,
1140 ssp
->data_bits
, ssp
->stop_bits
);
1143 case CHR_IOCTL_SERIAL_SET_BREAK
:
1145 int enable
= *(int *)arg
;
1147 tcsendbreak(s
->fd_in
, 1);
1150 case CHR_IOCTL_SERIAL_GET_TIOCM
:
1153 int *targ
= (int *)arg
;
1154 ioctl(s
->fd_in
, TIOCMGET
, &sarg
);
1156 if (sarg
& TIOCM_CTS
)
1157 *targ
|= CHR_TIOCM_CTS
;
1158 if (sarg
& TIOCM_CAR
)
1159 *targ
|= CHR_TIOCM_CAR
;
1160 if (sarg
& TIOCM_DSR
)
1161 *targ
|= CHR_TIOCM_DSR
;
1162 if (sarg
& TIOCM_RI
)
1163 *targ
|= CHR_TIOCM_RI
;
1164 if (sarg
& TIOCM_DTR
)
1165 *targ
|= CHR_TIOCM_DTR
;
1166 if (sarg
& TIOCM_RTS
)
1167 *targ
|= CHR_TIOCM_RTS
;
1170 case CHR_IOCTL_SERIAL_SET_TIOCM
:
1172 int sarg
= *(int *)arg
;
1174 ioctl(s
->fd_in
, TIOCMGET
, &targ
);
1175 targ
&= ~(CHR_TIOCM_CTS
| CHR_TIOCM_CAR
| CHR_TIOCM_DSR
1176 | CHR_TIOCM_RI
| CHR_TIOCM_DTR
| CHR_TIOCM_RTS
);
1177 if (sarg
& CHR_TIOCM_CTS
)
1179 if (sarg
& CHR_TIOCM_CAR
)
1181 if (sarg
& CHR_TIOCM_DSR
)
1183 if (sarg
& CHR_TIOCM_RI
)
1185 if (sarg
& CHR_TIOCM_DTR
)
1187 if (sarg
& CHR_TIOCM_RTS
)
1189 ioctl(s
->fd_in
, TIOCMSET
, &targ
);
1198 static void qemu_chr_close_tty(CharDriverState
*chr
)
1200 FDCharDriver
*s
= chr
->opaque
;
1214 static CharDriverState
*qemu_chr_open_tty(QemuOpts
*opts
)
1216 const char *filename
= qemu_opt_get(opts
, "path");
1217 CharDriverState
*chr
;
1220 TFR(fd
= open(filename
, O_RDWR
| O_NONBLOCK
));
1224 tty_serial_init(fd
, 115200, 'N', 8, 1);
1225 chr
= qemu_chr_open_fd(fd
, fd
);
1230 chr
->chr_ioctl
= tty_serial_ioctl
;
1231 chr
->chr_close
= qemu_chr_close_tty
;
1234 #else /* ! __linux__ && ! __sun__ */
1235 static CharDriverState
*qemu_chr_open_pty(QemuOpts
*opts
)
1239 #endif /* __linux__ || __sun__ */
1241 #if defined(__linux__)
1245 } ParallelCharDriver
;
1247 static int pp_hw_mode(ParallelCharDriver
*s
, uint16_t mode
)
1249 if (s
->mode
!= mode
) {
1251 if (ioctl(s
->fd
, PPSETMODE
, &m
) < 0)
1258 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1260 ParallelCharDriver
*drv
= chr
->opaque
;
1265 case CHR_IOCTL_PP_READ_DATA
:
1266 if (ioctl(fd
, PPRDATA
, &b
) < 0)
1268 *(uint8_t *)arg
= b
;
1270 case CHR_IOCTL_PP_WRITE_DATA
:
1271 b
= *(uint8_t *)arg
;
1272 if (ioctl(fd
, PPWDATA
, &b
) < 0)
1275 case CHR_IOCTL_PP_READ_CONTROL
:
1276 if (ioctl(fd
, PPRCONTROL
, &b
) < 0)
1278 /* Linux gives only the lowest bits, and no way to know data
1279 direction! For better compatibility set the fixed upper
1281 *(uint8_t *)arg
= b
| 0xc0;
1283 case CHR_IOCTL_PP_WRITE_CONTROL
:
1284 b
= *(uint8_t *)arg
;
1285 if (ioctl(fd
, PPWCONTROL
, &b
) < 0)
1288 case CHR_IOCTL_PP_READ_STATUS
:
1289 if (ioctl(fd
, PPRSTATUS
, &b
) < 0)
1291 *(uint8_t *)arg
= b
;
1293 case CHR_IOCTL_PP_DATA_DIR
:
1294 if (ioctl(fd
, PPDATADIR
, (int *)arg
) < 0)
1297 case CHR_IOCTL_PP_EPP_READ_ADDR
:
1298 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1299 struct ParallelIOArg
*parg
= arg
;
1300 int n
= read(fd
, parg
->buffer
, parg
->count
);
1301 if (n
!= parg
->count
) {
1306 case CHR_IOCTL_PP_EPP_READ
:
1307 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1308 struct ParallelIOArg
*parg
= arg
;
1309 int n
= read(fd
, parg
->buffer
, parg
->count
);
1310 if (n
!= parg
->count
) {
1315 case CHR_IOCTL_PP_EPP_WRITE_ADDR
:
1316 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1317 struct ParallelIOArg
*parg
= arg
;
1318 int n
= write(fd
, parg
->buffer
, parg
->count
);
1319 if (n
!= parg
->count
) {
1324 case CHR_IOCTL_PP_EPP_WRITE
:
1325 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1326 struct ParallelIOArg
*parg
= arg
;
1327 int n
= write(fd
, parg
->buffer
, parg
->count
);
1328 if (n
!= parg
->count
) {
1339 static void pp_close(CharDriverState
*chr
)
1341 ParallelCharDriver
*drv
= chr
->opaque
;
1344 pp_hw_mode(drv
, IEEE1284_MODE_COMPAT
);
1345 ioctl(fd
, PPRELEASE
);
1348 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1351 static CharDriverState
*qemu_chr_open_pp(QemuOpts
*opts
)
1353 const char *filename
= qemu_opt_get(opts
, "path");
1354 CharDriverState
*chr
;
1355 ParallelCharDriver
*drv
;
1358 TFR(fd
= open(filename
, O_RDWR
));
1362 if (ioctl(fd
, PPCLAIM
) < 0) {
1367 drv
= g_malloc0(sizeof(ParallelCharDriver
));
1369 drv
->mode
= IEEE1284_MODE_COMPAT
;
1371 chr
= g_malloc0(sizeof(CharDriverState
));
1372 chr
->chr_write
= null_chr_write
;
1373 chr
->chr_ioctl
= pp_ioctl
;
1374 chr
->chr_close
= pp_close
;
1377 qemu_chr_generic_open(chr
);
1381 #endif /* __linux__ */
1383 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1384 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1386 int fd
= (int)(intptr_t)chr
->opaque
;
1390 case CHR_IOCTL_PP_READ_DATA
:
1391 if (ioctl(fd
, PPIGDATA
, &b
) < 0)
1393 *(uint8_t *)arg
= b
;
1395 case CHR_IOCTL_PP_WRITE_DATA
:
1396 b
= *(uint8_t *)arg
;
1397 if (ioctl(fd
, PPISDATA
, &b
) < 0)
1400 case CHR_IOCTL_PP_READ_CONTROL
:
1401 if (ioctl(fd
, PPIGCTRL
, &b
) < 0)
1403 *(uint8_t *)arg
= b
;
1405 case CHR_IOCTL_PP_WRITE_CONTROL
:
1406 b
= *(uint8_t *)arg
;
1407 if (ioctl(fd
, PPISCTRL
, &b
) < 0)
1410 case CHR_IOCTL_PP_READ_STATUS
:
1411 if (ioctl(fd
, PPIGSTATUS
, &b
) < 0)
1413 *(uint8_t *)arg
= b
;
1421 static CharDriverState
*qemu_chr_open_pp(QemuOpts
*opts
)
1423 const char *filename
= qemu_opt_get(opts
, "path");
1424 CharDriverState
*chr
;
1427 fd
= open(filename
, O_RDWR
);
1431 chr
= g_malloc0(sizeof(CharDriverState
));
1432 chr
->opaque
= (void *)(intptr_t)fd
;
1433 chr
->chr_write
= null_chr_write
;
1434 chr
->chr_ioctl
= pp_ioctl
;
1441 static CharDriverState
*stdio_clients
[STDIO_MAX_CLIENTS
];
1445 HANDLE hcom
, hrecv
, hsend
;
1446 OVERLAPPED orecv
, osend
;
1453 HANDLE hInputReadyEvent
;
1454 HANDLE hInputDoneEvent
;
1455 HANDLE hInputThread
;
1456 uint8_t win_stdio_buf
;
1457 } WinStdioCharState
;
1459 #define NSENDBUF 2048
1460 #define NRECVBUF 2048
1461 #define MAXCONNECT 1
1462 #define NTIMEOUT 5000
1464 static int win_chr_poll(void *opaque
);
1465 static int win_chr_pipe_poll(void *opaque
);
1467 static void win_chr_close(CharDriverState
*chr
)
1469 WinCharState
*s
= chr
->opaque
;
1472 CloseHandle(s
->hsend
);
1476 CloseHandle(s
->hrecv
);
1480 CloseHandle(s
->hcom
);
1484 qemu_del_polling_cb(win_chr_pipe_poll
, chr
);
1486 qemu_del_polling_cb(win_chr_poll
, chr
);
1488 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
1491 static int win_chr_init(CharDriverState
*chr
, const char *filename
)
1493 WinCharState
*s
= chr
->opaque
;
1495 COMMTIMEOUTS cto
= { 0, 0, 0, 0, 0};
1500 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1502 fprintf(stderr
, "Failed CreateEvent\n");
1505 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1507 fprintf(stderr
, "Failed CreateEvent\n");
1511 s
->hcom
= CreateFile(filename
, GENERIC_READ
|GENERIC_WRITE
, 0, NULL
,
1512 OPEN_EXISTING
, FILE_FLAG_OVERLAPPED
, 0);
1513 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1514 fprintf(stderr
, "Failed CreateFile (%lu)\n", GetLastError());
1519 if (!SetupComm(s
->hcom
, NRECVBUF
, NSENDBUF
)) {
1520 fprintf(stderr
, "Failed SetupComm\n");
1524 ZeroMemory(&comcfg
, sizeof(COMMCONFIG
));
1525 size
= sizeof(COMMCONFIG
);
1526 GetDefaultCommConfig(filename
, &comcfg
, &size
);
1527 comcfg
.dcb
.DCBlength
= sizeof(DCB
);
1528 CommConfigDialog(filename
, NULL
, &comcfg
);
1530 if (!SetCommState(s
->hcom
, &comcfg
.dcb
)) {
1531 fprintf(stderr
, "Failed SetCommState\n");
1535 if (!SetCommMask(s
->hcom
, EV_ERR
)) {
1536 fprintf(stderr
, "Failed SetCommMask\n");
1540 cto
.ReadIntervalTimeout
= MAXDWORD
;
1541 if (!SetCommTimeouts(s
->hcom
, &cto
)) {
1542 fprintf(stderr
, "Failed SetCommTimeouts\n");
1546 if (!ClearCommError(s
->hcom
, &err
, &comstat
)) {
1547 fprintf(stderr
, "Failed ClearCommError\n");
1550 qemu_add_polling_cb(win_chr_poll
, chr
);
1558 static int win_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len1
)
1560 WinCharState
*s
= chr
->opaque
;
1561 DWORD len
, ret
, size
, err
;
1564 ZeroMemory(&s
->osend
, sizeof(s
->osend
));
1565 s
->osend
.hEvent
= s
->hsend
;
1568 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, &s
->osend
);
1570 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, NULL
);
1572 err
= GetLastError();
1573 if (err
== ERROR_IO_PENDING
) {
1574 ret
= GetOverlappedResult(s
->hcom
, &s
->osend
, &size
, TRUE
);
1592 static int win_chr_read_poll(CharDriverState
*chr
)
1594 WinCharState
*s
= chr
->opaque
;
1596 s
->max_size
= qemu_chr_be_can_write(chr
);
1600 static void win_chr_readfile(CharDriverState
*chr
)
1602 WinCharState
*s
= chr
->opaque
;
1604 uint8_t buf
[READ_BUF_LEN
];
1607 ZeroMemory(&s
->orecv
, sizeof(s
->orecv
));
1608 s
->orecv
.hEvent
= s
->hrecv
;
1609 ret
= ReadFile(s
->hcom
, buf
, s
->len
, &size
, &s
->orecv
);
1611 err
= GetLastError();
1612 if (err
== ERROR_IO_PENDING
) {
1613 ret
= GetOverlappedResult(s
->hcom
, &s
->orecv
, &size
, TRUE
);
1618 qemu_chr_be_write(chr
, buf
, size
);
1622 static void win_chr_read(CharDriverState
*chr
)
1624 WinCharState
*s
= chr
->opaque
;
1626 if (s
->len
> s
->max_size
)
1627 s
->len
= s
->max_size
;
1631 win_chr_readfile(chr
);
1634 static int win_chr_poll(void *opaque
)
1636 CharDriverState
*chr
= opaque
;
1637 WinCharState
*s
= chr
->opaque
;
1641 ClearCommError(s
->hcom
, &comerr
, &status
);
1642 if (status
.cbInQue
> 0) {
1643 s
->len
= status
.cbInQue
;
1644 win_chr_read_poll(chr
);
1651 static CharDriverState
*qemu_chr_open_win(QemuOpts
*opts
)
1653 const char *filename
= qemu_opt_get(opts
, "path");
1654 CharDriverState
*chr
;
1657 chr
= g_malloc0(sizeof(CharDriverState
));
1658 s
= g_malloc0(sizeof(WinCharState
));
1660 chr
->chr_write
= win_chr_write
;
1661 chr
->chr_close
= win_chr_close
;
1663 if (win_chr_init(chr
, filename
) < 0) {
1668 qemu_chr_generic_open(chr
);
1672 static int win_chr_pipe_poll(void *opaque
)
1674 CharDriverState
*chr
= opaque
;
1675 WinCharState
*s
= chr
->opaque
;
1678 PeekNamedPipe(s
->hcom
, NULL
, 0, NULL
, &size
, NULL
);
1681 win_chr_read_poll(chr
);
1688 static int win_chr_pipe_init(CharDriverState
*chr
, const char *filename
)
1690 WinCharState
*s
= chr
->opaque
;
1698 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1700 fprintf(stderr
, "Failed CreateEvent\n");
1703 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1705 fprintf(stderr
, "Failed CreateEvent\n");
1709 snprintf(openname
, sizeof(openname
), "\\\\.\\pipe\\%s", filename
);
1710 s
->hcom
= CreateNamedPipe(openname
, PIPE_ACCESS_DUPLEX
| FILE_FLAG_OVERLAPPED
,
1711 PIPE_TYPE_BYTE
| PIPE_READMODE_BYTE
|
1713 MAXCONNECT
, NSENDBUF
, NRECVBUF
, NTIMEOUT
, NULL
);
1714 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1715 fprintf(stderr
, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1720 ZeroMemory(&ov
, sizeof(ov
));
1721 ov
.hEvent
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1722 ret
= ConnectNamedPipe(s
->hcom
, &ov
);
1724 fprintf(stderr
, "Failed ConnectNamedPipe\n");
1728 ret
= GetOverlappedResult(s
->hcom
, &ov
, &size
, TRUE
);
1730 fprintf(stderr
, "Failed GetOverlappedResult\n");
1732 CloseHandle(ov
.hEvent
);
1739 CloseHandle(ov
.hEvent
);
1742 qemu_add_polling_cb(win_chr_pipe_poll
, chr
);
1751 static CharDriverState
*qemu_chr_open_win_pipe(QemuOpts
*opts
)
1753 const char *filename
= qemu_opt_get(opts
, "path");
1754 CharDriverState
*chr
;
1757 chr
= g_malloc0(sizeof(CharDriverState
));
1758 s
= g_malloc0(sizeof(WinCharState
));
1760 chr
->chr_write
= win_chr_write
;
1761 chr
->chr_close
= win_chr_close
;
1763 if (win_chr_pipe_init(chr
, filename
) < 0) {
1768 qemu_chr_generic_open(chr
);
1772 static CharDriverState
*qemu_chr_open_win_file(HANDLE fd_out
)
1774 CharDriverState
*chr
;
1777 chr
= g_malloc0(sizeof(CharDriverState
));
1778 s
= g_malloc0(sizeof(WinCharState
));
1781 chr
->chr_write
= win_chr_write
;
1782 qemu_chr_generic_open(chr
);
1786 static CharDriverState
*qemu_chr_open_win_con(QemuOpts
*opts
)
1788 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE
));
1791 static CharDriverState
*qemu_chr_open_win_file_out(QemuOpts
*opts
)
1793 const char *file_out
= qemu_opt_get(opts
, "path");
1796 fd_out
= CreateFile(file_out
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
1797 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
1798 if (fd_out
== INVALID_HANDLE_VALUE
)
1801 return qemu_chr_open_win_file(fd_out
);
1804 static int win_stdio_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1806 HANDLE hStdOut
= GetStdHandle(STD_OUTPUT_HANDLE
);
1813 if (!WriteFile(hStdOut
, buf
, len1
, &dwSize
, NULL
)) {
1823 static void win_stdio_wait_func(void *opaque
)
1825 CharDriverState
*chr
= opaque
;
1826 WinStdioCharState
*stdio
= chr
->opaque
;
1827 INPUT_RECORD buf
[4];
1832 ret
= ReadConsoleInput(stdio
->hStdIn
, buf
, sizeof(buf
) / sizeof(*buf
),
1836 /* Avoid error storm */
1837 qemu_del_wait_object(stdio
->hStdIn
, NULL
, NULL
);
1841 for (i
= 0; i
< dwSize
; i
++) {
1842 KEY_EVENT_RECORD
*kev
= &buf
[i
].Event
.KeyEvent
;
1844 if (buf
[i
].EventType
== KEY_EVENT
&& kev
->bKeyDown
) {
1846 if (kev
->uChar
.AsciiChar
!= 0) {
1847 for (j
= 0; j
< kev
->wRepeatCount
; j
++) {
1848 if (qemu_chr_be_can_write(chr
)) {
1849 uint8_t c
= kev
->uChar
.AsciiChar
;
1850 qemu_chr_be_write(chr
, &c
, 1);
1858 static DWORD WINAPI
win_stdio_thread(LPVOID param
)
1860 CharDriverState
*chr
= param
;
1861 WinStdioCharState
*stdio
= chr
->opaque
;
1867 /* Wait for one byte */
1868 ret
= ReadFile(stdio
->hStdIn
, &stdio
->win_stdio_buf
, 1, &dwSize
, NULL
);
1870 /* Exit in case of error, continue if nothing read */
1878 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1879 if (stdio
->win_stdio_buf
== '\r') {
1883 /* Signal the main thread and wait until the byte was eaten */
1884 if (!SetEvent(stdio
->hInputReadyEvent
)) {
1887 if (WaitForSingleObject(stdio
->hInputDoneEvent
, INFINITE
)
1893 qemu_del_wait_object(stdio
->hInputReadyEvent
, NULL
, NULL
);
1897 static void win_stdio_thread_wait_func(void *opaque
)
1899 CharDriverState
*chr
= opaque
;
1900 WinStdioCharState
*stdio
= chr
->opaque
;
1902 if (qemu_chr_be_can_write(chr
)) {
1903 qemu_chr_be_write(chr
, &stdio
->win_stdio_buf
, 1);
1906 SetEvent(stdio
->hInputDoneEvent
);
1909 static void qemu_chr_set_echo_win_stdio(CharDriverState
*chr
, bool echo
)
1911 WinStdioCharState
*stdio
= chr
->opaque
;
1914 GetConsoleMode(stdio
->hStdIn
, &dwMode
);
1917 SetConsoleMode(stdio
->hStdIn
, dwMode
| ENABLE_ECHO_INPUT
);
1919 SetConsoleMode(stdio
->hStdIn
, dwMode
& ~ENABLE_ECHO_INPUT
);
1923 static void win_stdio_close(CharDriverState
*chr
)
1925 WinStdioCharState
*stdio
= chr
->opaque
;
1927 if (stdio
->hInputReadyEvent
!= INVALID_HANDLE_VALUE
) {
1928 CloseHandle(stdio
->hInputReadyEvent
);
1930 if (stdio
->hInputDoneEvent
!= INVALID_HANDLE_VALUE
) {
1931 CloseHandle(stdio
->hInputDoneEvent
);
1933 if (stdio
->hInputThread
!= INVALID_HANDLE_VALUE
) {
1934 TerminateThread(stdio
->hInputThread
, 0);
1937 g_free(chr
->opaque
);
1942 static CharDriverState
*qemu_chr_open_win_stdio(QemuOpts
*opts
)
1944 CharDriverState
*chr
;
1945 WinStdioCharState
*stdio
;
1949 if (stdio_nb_clients
>= STDIO_MAX_CLIENTS
1950 || ((display_type
!= DT_NOGRAPHIC
) && (stdio_nb_clients
!= 0))) {
1954 chr
= g_malloc0(sizeof(CharDriverState
));
1955 stdio
= g_malloc0(sizeof(WinStdioCharState
));
1957 stdio
->hStdIn
= GetStdHandle(STD_INPUT_HANDLE
);
1958 if (stdio
->hStdIn
== INVALID_HANDLE_VALUE
) {
1959 fprintf(stderr
, "cannot open stdio: invalid handle\n");
1963 is_console
= GetConsoleMode(stdio
->hStdIn
, &dwMode
) != 0;
1965 chr
->opaque
= stdio
;
1966 chr
->chr_write
= win_stdio_write
;
1967 chr
->chr_close
= win_stdio_close
;
1969 if (stdio_nb_clients
== 0) {
1971 if (qemu_add_wait_object(stdio
->hStdIn
,
1972 win_stdio_wait_func
, chr
)) {
1973 fprintf(stderr
, "qemu_add_wait_object: failed\n");
1978 stdio
->hInputReadyEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
1979 stdio
->hInputDoneEvent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
1980 stdio
->hInputThread
= CreateThread(NULL
, 0, win_stdio_thread
,
1983 if (stdio
->hInputThread
== INVALID_HANDLE_VALUE
1984 || stdio
->hInputReadyEvent
== INVALID_HANDLE_VALUE
1985 || stdio
->hInputDoneEvent
== INVALID_HANDLE_VALUE
) {
1986 fprintf(stderr
, "cannot create stdio thread or event\n");
1989 if (qemu_add_wait_object(stdio
->hInputReadyEvent
,
1990 win_stdio_thread_wait_func
, chr
)) {
1991 fprintf(stderr
, "qemu_add_wait_object: failed\n");
1996 dwMode
|= ENABLE_LINE_INPUT
;
1998 stdio_clients
[stdio_nb_clients
++] = chr
;
1999 if (stdio_nb_clients
== 1 && is_console
) {
2000 /* set the terminal in raw mode */
2001 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2002 dwMode
|= ENABLE_PROCESSED_INPUT
;
2005 SetConsoleMode(stdio
->hStdIn
, dwMode
);
2007 chr
->chr_set_echo
= qemu_chr_set_echo_win_stdio
;
2008 qemu_chr_fe_set_echo(chr
, false);
2012 #endif /* !_WIN32 */
2014 /***********************************************************/
2015 /* UDP Net console */
2019 uint8_t buf
[READ_BUF_LEN
];
2025 static int udp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2027 NetCharDriver
*s
= chr
->opaque
;
2029 return send(s
->fd
, (const void *)buf
, len
, 0);
2032 static int udp_chr_read_poll(void *opaque
)
2034 CharDriverState
*chr
= opaque
;
2035 NetCharDriver
*s
= chr
->opaque
;
2037 s
->max_size
= qemu_chr_be_can_write(chr
);
2039 /* If there were any stray characters in the queue process them
2042 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2043 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2045 s
->max_size
= qemu_chr_be_can_write(chr
);
2050 static void udp_chr_read(void *opaque
)
2052 CharDriverState
*chr
= opaque
;
2053 NetCharDriver
*s
= chr
->opaque
;
2055 if (s
->max_size
== 0)
2057 s
->bufcnt
= qemu_recv(s
->fd
, s
->buf
, sizeof(s
->buf
), 0);
2058 s
->bufptr
= s
->bufcnt
;
2063 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
2064 qemu_chr_be_write(chr
, &s
->buf
[s
->bufptr
], 1);
2066 s
->max_size
= qemu_chr_be_can_write(chr
);
2070 static void udp_chr_update_read_handler(CharDriverState
*chr
)
2072 NetCharDriver
*s
= chr
->opaque
;
2075 qemu_set_fd_handler2(s
->fd
, udp_chr_read_poll
,
2076 udp_chr_read
, NULL
, chr
);
2080 static void udp_chr_close(CharDriverState
*chr
)
2082 NetCharDriver
*s
= chr
->opaque
;
2084 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
2088 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2091 static CharDriverState
*qemu_chr_open_udp(QemuOpts
*opts
)
2093 CharDriverState
*chr
= NULL
;
2094 NetCharDriver
*s
= NULL
;
2097 chr
= g_malloc0(sizeof(CharDriverState
));
2098 s
= g_malloc0(sizeof(NetCharDriver
));
2100 fd
= inet_dgram_opts(opts
);
2102 fprintf(stderr
, "inet_dgram_opts failed\n");
2110 chr
->chr_write
= udp_chr_write
;
2111 chr
->chr_update_read_handler
= udp_chr_update_read_handler
;
2112 chr
->chr_close
= udp_chr_close
;
2124 /***********************************************************/
2125 /* TCP Net console */
2137 static void tcp_chr_accept(void *opaque
);
2139 static int tcp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2141 TCPCharDriver
*s
= chr
->opaque
;
2143 return send_all(s
->fd
, buf
, len
);
2145 /* XXX: indicate an error ? */
2150 static int tcp_chr_read_poll(void *opaque
)
2152 CharDriverState
*chr
= opaque
;
2153 TCPCharDriver
*s
= chr
->opaque
;
2156 s
->max_size
= qemu_chr_be_can_write(chr
);
2161 #define IAC_BREAK 243
2162 static void tcp_chr_process_IAC_bytes(CharDriverState
*chr
,
2164 uint8_t *buf
, int *size
)
2166 /* Handle any telnet client's basic IAC options to satisfy char by
2167 * char mode with no echo. All IAC options will be removed from
2168 * the buf and the do_telnetopt variable will be used to track the
2169 * state of the width of the IAC information.
2171 * IAC commands come in sets of 3 bytes with the exception of the
2172 * "IAC BREAK" command and the double IAC.
2178 for (i
= 0; i
< *size
; i
++) {
2179 if (s
->do_telnetopt
> 1) {
2180 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
2181 /* Double IAC means send an IAC */
2185 s
->do_telnetopt
= 1;
2187 if ((unsigned char)buf
[i
] == IAC_BREAK
&& s
->do_telnetopt
== 2) {
2188 /* Handle IAC break commands by sending a serial break */
2189 qemu_chr_be_event(chr
, CHR_EVENT_BREAK
);
2194 if (s
->do_telnetopt
>= 4) {
2195 s
->do_telnetopt
= 1;
2198 if ((unsigned char)buf
[i
] == IAC
) {
2199 s
->do_telnetopt
= 2;
2210 static int tcp_get_msgfd(CharDriverState
*chr
)
2212 TCPCharDriver
*s
= chr
->opaque
;
2219 static void unix_process_msgfd(CharDriverState
*chr
, struct msghdr
*msg
)
2221 TCPCharDriver
*s
= chr
->opaque
;
2222 struct cmsghdr
*cmsg
;
2224 for (cmsg
= CMSG_FIRSTHDR(msg
); cmsg
; cmsg
= CMSG_NXTHDR(msg
, cmsg
)) {
2227 if (cmsg
->cmsg_len
!= CMSG_LEN(sizeof(int)) ||
2228 cmsg
->cmsg_level
!= SOL_SOCKET
||
2229 cmsg
->cmsg_type
!= SCM_RIGHTS
)
2232 fd
= *((int *)CMSG_DATA(cmsg
));
2242 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2244 TCPCharDriver
*s
= chr
->opaque
;
2245 struct msghdr msg
= { NULL
, };
2246 struct iovec iov
[1];
2248 struct cmsghdr cmsg
;
2249 char control
[CMSG_SPACE(sizeof(int))];
2253 iov
[0].iov_base
= buf
;
2254 iov
[0].iov_len
= len
;
2258 msg
.msg_control
= &msg_control
;
2259 msg
.msg_controllen
= sizeof(msg_control
);
2261 ret
= recvmsg(s
->fd
, &msg
, 0);
2262 if (ret
> 0 && s
->is_unix
)
2263 unix_process_msgfd(chr
, &msg
);
2268 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2270 TCPCharDriver
*s
= chr
->opaque
;
2271 return qemu_recv(s
->fd
, buf
, len
, 0);
2275 static void tcp_chr_read(void *opaque
)
2277 CharDriverState
*chr
= opaque
;
2278 TCPCharDriver
*s
= chr
->opaque
;
2279 uint8_t buf
[READ_BUF_LEN
];
2282 if (!s
->connected
|| s
->max_size
<= 0)
2285 if (len
> s
->max_size
)
2287 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
2289 /* connection closed */
2291 if (s
->listen_fd
>= 0) {
2292 qemu_set_fd_handler2(s
->listen_fd
, NULL
, tcp_chr_accept
, NULL
, chr
);
2294 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
2297 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2298 } else if (size
> 0) {
2299 if (s
->do_telnetopt
)
2300 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
2302 qemu_chr_be_write(chr
, buf
, size
);
2307 CharDriverState
*qemu_chr_open_eventfd(int eventfd
)
2309 return qemu_chr_open_fd(eventfd
, eventfd
);
2313 static void tcp_chr_connect(void *opaque
)
2315 CharDriverState
*chr
= opaque
;
2316 TCPCharDriver
*s
= chr
->opaque
;
2319 qemu_set_fd_handler2(s
->fd
, tcp_chr_read_poll
,
2320 tcp_chr_read
, NULL
, chr
);
2321 qemu_chr_generic_open(chr
);
2324 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2325 static void tcp_chr_telnet_init(int fd
)
2328 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2329 IACSET(buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2330 send(fd
, (char *)buf
, 3, 0);
2331 IACSET(buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2332 send(fd
, (char *)buf
, 3, 0);
2333 IACSET(buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2334 send(fd
, (char *)buf
, 3, 0);
2335 IACSET(buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2336 send(fd
, (char *)buf
, 3, 0);
2339 static void socket_set_nodelay(int fd
)
2342 setsockopt(fd
, IPPROTO_TCP
, TCP_NODELAY
, (char *)&val
, sizeof(val
));
2345 static int tcp_chr_add_client(CharDriverState
*chr
, int fd
)
2347 TCPCharDriver
*s
= chr
->opaque
;
2351 socket_set_nonblock(fd
);
2353 socket_set_nodelay(fd
);
2355 qemu_set_fd_handler2(s
->listen_fd
, NULL
, NULL
, NULL
, NULL
);
2356 tcp_chr_connect(chr
);
2361 static void tcp_chr_accept(void *opaque
)
2363 CharDriverState
*chr
= opaque
;
2364 TCPCharDriver
*s
= chr
->opaque
;
2365 struct sockaddr_in saddr
;
2367 struct sockaddr_un uaddr
;
2369 struct sockaddr
*addr
;
2376 len
= sizeof(uaddr
);
2377 addr
= (struct sockaddr
*)&uaddr
;
2381 len
= sizeof(saddr
);
2382 addr
= (struct sockaddr
*)&saddr
;
2384 fd
= qemu_accept(s
->listen_fd
, addr
, &len
);
2385 if (fd
< 0 && errno
!= EINTR
) {
2387 } else if (fd
>= 0) {
2388 if (s
->do_telnetopt
)
2389 tcp_chr_telnet_init(fd
);
2393 if (tcp_chr_add_client(chr
, fd
) < 0)
2397 static void tcp_chr_close(CharDriverState
*chr
)
2399 TCPCharDriver
*s
= chr
->opaque
;
2401 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
2404 if (s
->listen_fd
>= 0) {
2405 qemu_set_fd_handler2(s
->listen_fd
, NULL
, NULL
, NULL
, NULL
);
2406 closesocket(s
->listen_fd
);
2409 qemu_chr_be_event(chr
, CHR_EVENT_CLOSED
);
2412 static CharDriverState
*qemu_chr_open_socket(QemuOpts
*opts
)
2414 CharDriverState
*chr
= NULL
;
2415 TCPCharDriver
*s
= NULL
;
2423 is_listen
= qemu_opt_get_bool(opts
, "server", 0);
2424 is_waitconnect
= qemu_opt_get_bool(opts
, "wait", 1);
2425 is_telnet
= qemu_opt_get_bool(opts
, "telnet", 0);
2426 do_nodelay
= !qemu_opt_get_bool(opts
, "delay", 1);
2427 is_unix
= qemu_opt_get(opts
, "path") != NULL
;
2431 chr
= g_malloc0(sizeof(CharDriverState
));
2432 s
= g_malloc0(sizeof(TCPCharDriver
));
2436 fd
= unix_listen_opts(opts
);
2438 fd
= unix_connect_opts(opts
);
2442 fd
= inet_listen_opts(opts
, 0);
2444 fd
= inet_connect_opts(opts
);
2450 if (!is_waitconnect
)
2451 socket_set_nonblock(fd
);
2457 s
->is_unix
= is_unix
;
2458 s
->do_nodelay
= do_nodelay
&& !is_unix
;
2461 chr
->chr_write
= tcp_chr_write
;
2462 chr
->chr_close
= tcp_chr_close
;
2463 chr
->get_msgfd
= tcp_get_msgfd
;
2464 chr
->chr_add_client
= tcp_chr_add_client
;
2468 qemu_set_fd_handler2(s
->listen_fd
, NULL
, tcp_chr_accept
, NULL
, chr
);
2470 s
->do_telnetopt
= 1;
2475 socket_set_nodelay(fd
);
2476 tcp_chr_connect(chr
);
2479 /* for "info chardev" monitor command */
2480 chr
->filename
= g_malloc(256);
2482 snprintf(chr
->filename
, 256, "unix:%s%s",
2483 qemu_opt_get(opts
, "path"),
2484 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2485 } else if (is_telnet
) {
2486 snprintf(chr
->filename
, 256, "telnet:%s:%s%s",
2487 qemu_opt_get(opts
, "host"), qemu_opt_get(opts
, "port"),
2488 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2490 snprintf(chr
->filename
, 256, "tcp:%s:%s%s",
2491 qemu_opt_get(opts
, "host"), qemu_opt_get(opts
, "port"),
2492 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2495 if (is_listen
&& is_waitconnect
) {
2496 printf("QEMU waiting for connection on: %s\n",
2498 tcp_chr_accept(chr
);
2499 socket_set_nonblock(s
->listen_fd
);
2511 /***********************************************************/
2512 /* Memory chardev */
2515 size_t outbuf_capacity
;
2519 static int mem_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
2521 MemoryDriver
*d
= chr
->opaque
;
2523 /* TODO: the QString implementation has the same code, we should
2524 * introduce a generic way to do this in cutils.c */
2525 if (d
->outbuf_capacity
< d
->outbuf_size
+ len
) {
2527 d
->outbuf_capacity
+= len
;
2528 d
->outbuf_capacity
*= 2;
2529 d
->outbuf
= g_realloc(d
->outbuf
, d
->outbuf_capacity
);
2532 memcpy(d
->outbuf
+ d
->outbuf_size
, buf
, len
);
2533 d
->outbuf_size
+= len
;
2538 void qemu_chr_init_mem(CharDriverState
*chr
)
2542 d
= g_malloc(sizeof(*d
));
2544 d
->outbuf_capacity
= 4096;
2545 d
->outbuf
= g_malloc0(d
->outbuf_capacity
);
2547 memset(chr
, 0, sizeof(*chr
));
2549 chr
->chr_write
= mem_chr_write
;
2552 QString
*qemu_chr_mem_to_qs(CharDriverState
*chr
)
2554 MemoryDriver
*d
= chr
->opaque
;
2555 return qstring_from_substr((char *) d
->outbuf
, 0, d
->outbuf_size
- 1);
2558 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2559 void qemu_chr_close_mem(CharDriverState
*chr
)
2561 MemoryDriver
*d
= chr
->opaque
;
2564 g_free(chr
->opaque
);
2566 chr
->chr_write
= NULL
;
2569 size_t qemu_chr_mem_osize(const CharDriverState
*chr
)
2571 const MemoryDriver
*d
= chr
->opaque
;
2572 return d
->outbuf_size
;
2575 QemuOpts
*qemu_chr_parse_compat(const char *label
, const char *filename
)
2577 char host
[65], port
[33], width
[8], height
[8];
2582 opts
= qemu_opts_create(qemu_find_opts("chardev"), label
, 1);
2586 if (strstart(filename
, "mon:", &p
)) {
2588 qemu_opt_set(opts
, "mux", "on");
2591 if (strcmp(filename
, "null") == 0 ||
2592 strcmp(filename
, "pty") == 0 ||
2593 strcmp(filename
, "msmouse") == 0 ||
2594 strcmp(filename
, "braille") == 0 ||
2595 strcmp(filename
, "stdio") == 0) {
2596 qemu_opt_set(opts
, "backend", filename
);
2599 if (strstart(filename
, "vc", &p
)) {
2600 qemu_opt_set(opts
, "backend", "vc");
2602 if (sscanf(p
+1, "%8[0-9]x%8[0-9]", width
, height
) == 2) {
2604 qemu_opt_set(opts
, "width", width
);
2605 qemu_opt_set(opts
, "height", height
);
2606 } else if (sscanf(p
+1, "%8[0-9]Cx%8[0-9]C", width
, height
) == 2) {
2608 qemu_opt_set(opts
, "cols", width
);
2609 qemu_opt_set(opts
, "rows", height
);
2616 if (strcmp(filename
, "con:") == 0) {
2617 qemu_opt_set(opts
, "backend", "console");
2620 if (strstart(filename
, "COM", NULL
)) {
2621 qemu_opt_set(opts
, "backend", "serial");
2622 qemu_opt_set(opts
, "path", filename
);
2625 if (strstart(filename
, "file:", &p
)) {
2626 qemu_opt_set(opts
, "backend", "file");
2627 qemu_opt_set(opts
, "path", p
);
2630 if (strstart(filename
, "pipe:", &p
)) {
2631 qemu_opt_set(opts
, "backend", "pipe");
2632 qemu_opt_set(opts
, "path", p
);
2635 if (strstart(filename
, "tcp:", &p
) ||
2636 strstart(filename
, "telnet:", &p
)) {
2637 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2639 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1)
2642 qemu_opt_set(opts
, "backend", "socket");
2643 qemu_opt_set(opts
, "host", host
);
2644 qemu_opt_set(opts
, "port", port
);
2645 if (p
[pos
] == ',') {
2646 if (qemu_opts_do_parse(opts
, p
+pos
+1, NULL
) != 0)
2649 if (strstart(filename
, "telnet:", &p
))
2650 qemu_opt_set(opts
, "telnet", "on");
2653 if (strstart(filename
, "udp:", &p
)) {
2654 qemu_opt_set(opts
, "backend", "udp");
2655 if (sscanf(p
, "%64[^:]:%32[^@,]%n", host
, port
, &pos
) < 2) {
2657 if (sscanf(p
, ":%32[^@,]%n", port
, &pos
) < 1) {
2661 qemu_opt_set(opts
, "host", host
);
2662 qemu_opt_set(opts
, "port", port
);
2663 if (p
[pos
] == '@') {
2665 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2667 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
2671 qemu_opt_set(opts
, "localaddr", host
);
2672 qemu_opt_set(opts
, "localport", port
);
2676 if (strstart(filename
, "unix:", &p
)) {
2677 qemu_opt_set(opts
, "backend", "socket");
2678 if (qemu_opts_do_parse(opts
, p
, "path") != 0)
2682 if (strstart(filename
, "/dev/parport", NULL
) ||
2683 strstart(filename
, "/dev/ppi", NULL
)) {
2684 qemu_opt_set(opts
, "backend", "parport");
2685 qemu_opt_set(opts
, "path", filename
);
2688 if (strstart(filename
, "/dev/", NULL
)) {
2689 qemu_opt_set(opts
, "backend", "tty");
2690 qemu_opt_set(opts
, "path", filename
);
2695 qemu_opts_del(opts
);
2699 static const struct {
2701 CharDriverState
*(*open
)(QemuOpts
*opts
);
2702 } backend_table
[] = {
2703 { .name
= "null", .open
= qemu_chr_open_null
},
2704 { .name
= "socket", .open
= qemu_chr_open_socket
},
2705 { .name
= "udp", .open
= qemu_chr_open_udp
},
2706 { .name
= "msmouse", .open
= qemu_chr_open_msmouse
},
2707 { .name
= "vc", .open
= text_console_init
},
2709 { .name
= "file", .open
= qemu_chr_open_win_file_out
},
2710 { .name
= "pipe", .open
= qemu_chr_open_win_pipe
},
2711 { .name
= "console", .open
= qemu_chr_open_win_con
},
2712 { .name
= "serial", .open
= qemu_chr_open_win
},
2713 { .name
= "stdio", .open
= qemu_chr_open_win_stdio
},
2715 { .name
= "file", .open
= qemu_chr_open_file_out
},
2716 { .name
= "pipe", .open
= qemu_chr_open_pipe
},
2717 { .name
= "pty", .open
= qemu_chr_open_pty
},
2718 { .name
= "stdio", .open
= qemu_chr_open_stdio
},
2720 #ifdef CONFIG_BRLAPI
2721 { .name
= "braille", .open
= chr_baum_init
},
2723 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2724 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2725 || defined(__FreeBSD_kernel__)
2726 { .name
= "tty", .open
= qemu_chr_open_tty
},
2728 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2729 || defined(__FreeBSD_kernel__)
2730 { .name
= "parport", .open
= qemu_chr_open_pp
},
2733 { .name
= "spicevmc", .open
= qemu_chr_open_spice
},
2737 CharDriverState
*qemu_chr_new_from_opts(QemuOpts
*opts
,
2738 void (*init
)(struct CharDriverState
*s
))
2740 CharDriverState
*chr
;
2743 if (qemu_opts_id(opts
) == NULL
) {
2744 fprintf(stderr
, "chardev: no id specified\n");
2748 if (qemu_opt_get(opts
, "backend") == NULL
) {
2749 fprintf(stderr
, "chardev: \"%s\" missing backend\n",
2750 qemu_opts_id(opts
));
2753 for (i
= 0; i
< ARRAY_SIZE(backend_table
); i
++) {
2754 if (strcmp(backend_table
[i
].name
, qemu_opt_get(opts
, "backend")) == 0)
2757 if (i
== ARRAY_SIZE(backend_table
)) {
2758 fprintf(stderr
, "chardev: backend \"%s\" not found\n",
2759 qemu_opt_get(opts
, "backend"));
2763 chr
= backend_table
[i
].open(opts
);
2765 fprintf(stderr
, "chardev: opening backend \"%s\" failed\n",
2766 qemu_opt_get(opts
, "backend"));
2771 chr
->filename
= g_strdup(qemu_opt_get(opts
, "backend"));
2773 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
2775 if (qemu_opt_get_bool(opts
, "mux", 0)) {
2776 CharDriverState
*base
= chr
;
2777 int len
= strlen(qemu_opts_id(opts
)) + 6;
2778 base
->label
= g_malloc(len
);
2779 snprintf(base
->label
, len
, "%s-base", qemu_opts_id(opts
));
2780 chr
= qemu_chr_open_mux(base
);
2781 chr
->filename
= base
->filename
;
2782 chr
->avail_connections
= MAX_MUX
;
2783 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
2785 chr
->avail_connections
= 1;
2787 chr
->label
= g_strdup(qemu_opts_id(opts
));
2791 CharDriverState
*qemu_chr_new(const char *label
, const char *filename
, void (*init
)(struct CharDriverState
*s
))
2794 CharDriverState
*chr
;
2797 if (strstart(filename
, "chardev:", &p
)) {
2798 return qemu_chr_find(p
);
2801 opts
= qemu_chr_parse_compat(label
, filename
);
2805 chr
= qemu_chr_new_from_opts(opts
, init
);
2806 if (chr
&& qemu_opt_get_bool(opts
, "mux", 0)) {
2807 monitor_init(chr
, MONITOR_USE_READLINE
);
2809 qemu_opts_del(opts
);
2813 void qemu_chr_fe_set_echo(struct CharDriverState
*chr
, bool echo
)
2815 if (chr
->chr_set_echo
) {
2816 chr
->chr_set_echo(chr
, echo
);
2820 void qemu_chr_fe_open(struct CharDriverState
*chr
)
2822 if (chr
->chr_guest_open
) {
2823 chr
->chr_guest_open(chr
);
2827 void qemu_chr_fe_close(struct CharDriverState
*chr
)
2829 if (chr
->chr_guest_close
) {
2830 chr
->chr_guest_close(chr
);
2834 void qemu_chr_delete(CharDriverState
*chr
)
2836 QTAILQ_REMOVE(&chardevs
, chr
, next
);
2838 chr
->chr_close(chr
);
2839 g_free(chr
->filename
);
2844 ChardevInfoList
*qmp_query_chardev(Error
**errp
)
2846 ChardevInfoList
*chr_list
= NULL
;
2847 CharDriverState
*chr
;
2849 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
2850 ChardevInfoList
*info
= g_malloc0(sizeof(*info
));
2851 info
->value
= g_malloc0(sizeof(*info
->value
));
2852 info
->value
->label
= g_strdup(chr
->label
);
2853 info
->value
->filename
= g_strdup(chr
->filename
);
2855 info
->next
= chr_list
;
2862 CharDriverState
*qemu_chr_find(const char *name
)
2864 CharDriverState
*chr
;
2866 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
2867 if (strcmp(chr
->label
, name
) != 0)
2874 /* Get a character (serial) device interface. */
2875 CharDriverState
*qemu_char_get_next_serial(void)
2877 static int next_serial
;
2879 /* FIXME: This function needs to go away: use chardev properties! */
2880 return serial_hds
[next_serial
++];