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"
34 #include "hw/msmouse.h"
45 #include <sys/times.h>
49 #include <sys/ioctl.h>
50 #include <sys/resource.h>
51 #include <sys/socket.h>
52 #include <netinet/in.h>
55 #include <net/if_tap.h>
58 #include <linux/if_tun.h>
60 #include <arpa/inet.h>
63 #include <sys/select.h>
68 #include <dev/ppbus/ppi.h>
69 #include <dev/ppbus/ppbconf.h>
70 #elif defined(__DragonFly__)
72 #include <dev/misc/ppi/ppi.h>
73 #include <bus/ppbus/ppbconf.h>
77 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
78 #include <freebsd/stdlib.h>
83 #include <linux/ppdev.h>
84 #include <linux/parport.h>
88 #include <sys/ethernet.h>
89 #include <sys/sockio.h>
90 #include <netinet/arp.h>
91 #include <netinet/in.h>
92 #include <netinet/in_systm.h>
93 #include <netinet/ip.h>
94 #include <netinet/ip_icmp.h> // must come after ip.h
95 #include <netinet/udp.h>
96 #include <netinet/tcp.h>
104 #include "qemu_socket.h"
106 /***********************************************************/
107 /* character device */
109 static TAILQ_HEAD(CharDriverStateHead
, CharDriverState
) chardevs
=
110 TAILQ_HEAD_INITIALIZER(chardevs
);
111 static int initial_reset_issued
;
113 static void qemu_chr_event(CharDriverState
*s
, int event
)
117 s
->chr_event(s
->handler_opaque
, event
);
120 static void qemu_chr_reset_bh(void *opaque
)
122 CharDriverState
*s
= opaque
;
123 qemu_chr_event(s
, CHR_EVENT_RESET
);
124 qemu_bh_delete(s
->bh
);
128 void qemu_chr_reset(CharDriverState
*s
)
130 if (s
->bh
== NULL
&& initial_reset_issued
) {
131 s
->bh
= qemu_bh_new(qemu_chr_reset_bh
, s
);
132 qemu_bh_schedule(s
->bh
);
136 void qemu_chr_initial_reset(void)
138 CharDriverState
*chr
;
140 initial_reset_issued
= 1;
142 TAILQ_FOREACH(chr
, &chardevs
, next
) {
147 int qemu_chr_write(CharDriverState
*s
, const uint8_t *buf
, int len
)
149 return s
->chr_write(s
, buf
, len
);
152 int qemu_chr_ioctl(CharDriverState
*s
, int cmd
, void *arg
)
156 return s
->chr_ioctl(s
, cmd
, arg
);
159 int qemu_chr_can_read(CharDriverState
*s
)
161 if (!s
->chr_can_read
)
163 return s
->chr_can_read(s
->handler_opaque
);
166 void qemu_chr_read(CharDriverState
*s
, uint8_t *buf
, int len
)
168 s
->chr_read(s
->handler_opaque
, buf
, len
);
171 int qemu_chr_get_msgfd(CharDriverState
*s
)
173 return s
->get_msgfd
? s
->get_msgfd(s
) : -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_printf(CharDriverState
*s
, const char *fmt
, ...)
187 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
188 qemu_chr_write(s
, (uint8_t *)buf
, strlen(buf
));
192 void qemu_chr_send_event(CharDriverState
*s
, int event
)
194 if (s
->chr_send_event
)
195 s
->chr_send_event(s
, event
);
198 void qemu_chr_add_handlers(CharDriverState
*s
,
199 IOCanRWHandler
*fd_can_read
,
200 IOReadHandler
*fd_read
,
201 IOEventHandler
*fd_event
,
204 s
->chr_can_read
= fd_can_read
;
205 s
->chr_read
= fd_read
;
206 s
->chr_event
= fd_event
;
207 s
->handler_opaque
= opaque
;
208 if (s
->chr_update_read_handler
)
209 s
->chr_update_read_handler(s
);
212 static int null_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
217 static CharDriverState
*qemu_chr_open_null(QemuOpts
*opts
)
219 CharDriverState
*chr
;
221 chr
= qemu_mallocz(sizeof(CharDriverState
));
222 chr
->chr_write
= null_chr_write
;
226 /* MUX driver for serial I/O splitting */
228 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
229 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
231 IOCanRWHandler
*chr_can_read
[MAX_MUX
];
232 IOReadHandler
*chr_read
[MAX_MUX
];
233 IOEventHandler
*chr_event
[MAX_MUX
];
234 void *ext_opaque
[MAX_MUX
];
235 CharDriverState
*drv
;
239 /* Intermediate input buffer allows to catch escape sequences even if the
240 currently active device is not accepting any input - but only until it
242 unsigned char buffer
[MAX_MUX
][MUX_BUFFER_SIZE
];
247 int64_t timestamps_start
;
251 static int mux_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
253 MuxDriver
*d
= chr
->opaque
;
255 if (!d
->timestamps
) {
256 ret
= d
->drv
->chr_write(d
->drv
, buf
, len
);
261 for (i
= 0; i
< len
; i
++) {
267 ti
= qemu_get_clock(rt_clock
);
268 if (d
->timestamps_start
== -1)
269 d
->timestamps_start
= ti
;
270 ti
-= d
->timestamps_start
;
272 snprintf(buf1
, sizeof(buf1
),
273 "[%02d:%02d:%02d.%03d] ",
278 d
->drv
->chr_write(d
->drv
, (uint8_t *)buf1
, strlen(buf1
));
281 ret
+= d
->drv
->chr_write(d
->drv
, buf
+i
, 1);
282 if (buf
[i
] == '\n') {
290 static const char * const mux_help
[] = {
291 "% h print this help\n\r",
292 "% x exit emulator\n\r",
293 "% s save disk data back to file (if -snapshot)\n\r",
294 "% t toggle console timestamps\n\r"
295 "% b send break (magic sysrq)\n\r",
296 "% c switch between console and monitor\n\r",
301 int term_escape_char
= 0x01; /* ctrl-a is used for escape */
302 static void mux_print_help(CharDriverState
*chr
)
305 char ebuf
[15] = "Escape-Char";
306 char cbuf
[50] = "\n\r";
308 if (term_escape_char
> 0 && term_escape_char
< 26) {
309 snprintf(cbuf
, sizeof(cbuf
), "\n\r");
310 snprintf(ebuf
, sizeof(ebuf
), "C-%c", term_escape_char
- 1 + 'a');
312 snprintf(cbuf
, sizeof(cbuf
),
313 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
316 chr
->chr_write(chr
, (uint8_t *)cbuf
, strlen(cbuf
));
317 for (i
= 0; mux_help
[i
] != NULL
; i
++) {
318 for (j
=0; mux_help
[i
][j
] != '\0'; j
++) {
319 if (mux_help
[i
][j
] == '%')
320 chr
->chr_write(chr
, (uint8_t *)ebuf
, strlen(ebuf
));
322 chr
->chr_write(chr
, (uint8_t *)&mux_help
[i
][j
], 1);
327 static void mux_chr_send_event(MuxDriver
*d
, int mux_nr
, int event
)
329 if (d
->chr_event
[mux_nr
])
330 d
->chr_event
[mux_nr
](d
->ext_opaque
[mux_nr
], event
);
333 static int mux_proc_byte(CharDriverState
*chr
, MuxDriver
*d
, int ch
)
335 if (d
->term_got_escape
) {
336 d
->term_got_escape
= 0;
337 if (ch
== term_escape_char
)
346 const char *term
= "QEMU: Terminated\n\r";
347 chr
->chr_write(chr
,(uint8_t *)term
,strlen(term
));
354 TAILQ_FOREACH(dinfo
, &drives
, next
) {
355 bdrv_commit(dinfo
->bdrv
);
360 qemu_chr_event(chr
, CHR_EVENT_BREAK
);
363 /* Switch to the next registered device */
364 mux_chr_send_event(d
, chr
->focus
, CHR_EVENT_MUX_OUT
);
366 if (chr
->focus
>= d
->mux_cnt
)
368 mux_chr_send_event(d
, chr
->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
)
388 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 (chr
->focus
!= -1) {
460 mux_chr_send_event(d
, chr
->focus
, CHR_EVENT_MUX_OUT
);
462 chr
->focus
= d
->mux_cnt
;
464 mux_chr_send_event(d
, chr
->focus
, CHR_EVENT_MUX_IN
);
467 static CharDriverState
*qemu_chr_open_mux(CharDriverState
*drv
)
469 CharDriverState
*chr
;
472 chr
= qemu_mallocz(sizeof(CharDriverState
));
473 d
= qemu_mallocz(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
;
486 int send_all(int fd
, const void *buf
, int len1
)
492 ret
= send(fd
, buf
, len
, 0);
494 errno
= WSAGetLastError();
495 if (errno
!= WSAEWOULDBLOCK
) {
498 } else if (ret
== 0) {
510 static int unix_write(int fd
, const uint8_t *buf
, int len1
)
516 ret
= write(fd
, buf
, len
);
518 if (errno
!= EINTR
&& errno
!= EAGAIN
)
520 } else if (ret
== 0) {
530 int send_all(int fd
, const void *buf
, int len1
)
532 return unix_write(fd
, buf
, len1
);
543 #define STDIO_MAX_CLIENTS 1
544 static int stdio_nb_clients
= 0;
546 static int fd_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
548 FDCharDriver
*s
= chr
->opaque
;
549 return send_all(s
->fd_out
, buf
, len
);
552 static int fd_chr_read_poll(void *opaque
)
554 CharDriverState
*chr
= opaque
;
555 FDCharDriver
*s
= chr
->opaque
;
557 s
->max_size
= qemu_chr_can_read(chr
);
561 static void fd_chr_read(void *opaque
)
563 CharDriverState
*chr
= opaque
;
564 FDCharDriver
*s
= chr
->opaque
;
569 if (len
> s
->max_size
)
573 size
= read(s
->fd_in
, buf
, len
);
575 /* FD has been closed. Remove it from the active list. */
576 qemu_set_fd_handler2(s
->fd_in
, NULL
, NULL
, NULL
, NULL
);
577 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
581 qemu_chr_read(chr
, buf
, size
);
585 static void fd_chr_update_read_handler(CharDriverState
*chr
)
587 FDCharDriver
*s
= chr
->opaque
;
590 if (display_type
== DT_NOGRAPHIC
&& s
->fd_in
== 0) {
592 qemu_set_fd_handler2(s
->fd_in
, fd_chr_read_poll
,
593 fd_chr_read
, NULL
, chr
);
598 static void fd_chr_close(struct CharDriverState
*chr
)
600 FDCharDriver
*s
= chr
->opaque
;
603 if (display_type
== DT_NOGRAPHIC
&& s
->fd_in
== 0) {
605 qemu_set_fd_handler2(s
->fd_in
, NULL
, NULL
, NULL
, NULL
);
610 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
613 /* open a character device to a unix fd */
614 static CharDriverState
*qemu_chr_open_fd(int fd_in
, int fd_out
)
616 CharDriverState
*chr
;
619 chr
= qemu_mallocz(sizeof(CharDriverState
));
620 s
= qemu_mallocz(sizeof(FDCharDriver
));
624 chr
->chr_write
= fd_chr_write
;
625 chr
->chr_update_read_handler
= fd_chr_update_read_handler
;
626 chr
->chr_close
= fd_chr_close
;
633 static CharDriverState
*qemu_chr_open_file_out(QemuOpts
*opts
)
637 TFR(fd_out
= open(qemu_opt_get(opts
, "path"),
638 O_WRONLY
| O_TRUNC
| O_CREAT
| O_BINARY
, 0666));
641 return qemu_chr_open_fd(-1, fd_out
);
644 static CharDriverState
*qemu_chr_open_pipe(QemuOpts
*opts
)
647 char filename_in
[256], filename_out
[256];
648 const char *filename
= qemu_opt_get(opts
, "path");
650 if (filename
== NULL
) {
651 fprintf(stderr
, "chardev: pipe: no filename given\n");
655 snprintf(filename_in
, 256, "%s.in", filename
);
656 snprintf(filename_out
, 256, "%s.out", filename
);
657 TFR(fd_in
= open(filename_in
, O_RDWR
| O_BINARY
));
658 TFR(fd_out
= open(filename_out
, O_RDWR
| O_BINARY
));
659 if (fd_in
< 0 || fd_out
< 0) {
664 TFR(fd_in
= fd_out
= open(filename
, O_RDWR
| O_BINARY
));
668 return qemu_chr_open_fd(fd_in
, fd_out
);
672 /* for STDIO, we handle the case where several clients use it
675 #define TERM_FIFO_MAX_SIZE 1
677 static uint8_t term_fifo
[TERM_FIFO_MAX_SIZE
];
678 static int term_fifo_size
;
680 static int stdio_read_poll(void *opaque
)
682 CharDriverState
*chr
= opaque
;
684 /* try to flush the queue if needed */
685 if (term_fifo_size
!= 0 && qemu_chr_can_read(chr
) > 0) {
686 qemu_chr_read(chr
, term_fifo
, 1);
689 /* see if we can absorb more chars */
690 if (term_fifo_size
== 0)
696 static void stdio_read(void *opaque
)
700 CharDriverState
*chr
= opaque
;
702 size
= read(0, buf
, 1);
704 /* stdin has been closed. Remove it from the active list. */
705 qemu_set_fd_handler2(0, NULL
, NULL
, NULL
, NULL
);
706 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
710 if (qemu_chr_can_read(chr
) > 0) {
711 qemu_chr_read(chr
, buf
, 1);
712 } else if (term_fifo_size
== 0) {
713 term_fifo
[term_fifo_size
++] = buf
[0];
718 /* init terminal so that we can grab keys */
719 static struct termios oldtty
;
720 static int old_fd0_flags
;
721 static int term_atexit_done
;
723 static void term_exit(void)
725 tcsetattr (0, TCSANOW
, &oldtty
);
726 fcntl(0, F_SETFL
, old_fd0_flags
);
729 static void term_init(void)
735 old_fd0_flags
= fcntl(0, F_GETFL
);
737 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
738 |INLCR
|IGNCR
|ICRNL
|IXON
);
739 tty
.c_oflag
|= OPOST
;
740 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
741 /* if graphical mode, we allow Ctrl-C handling */
742 if (display_type
== DT_NOGRAPHIC
)
743 tty
.c_lflag
&= ~ISIG
;
744 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
749 tcsetattr (0, TCSANOW
, &tty
);
751 if (!term_atexit_done
++)
754 fcntl(0, F_SETFL
, O_NONBLOCK
);
757 static void qemu_chr_close_stdio(struct CharDriverState
*chr
)
761 qemu_set_fd_handler2(0, NULL
, NULL
, NULL
, NULL
);
765 static CharDriverState
*qemu_chr_open_stdio(QemuOpts
*opts
)
767 CharDriverState
*chr
;
769 if (stdio_nb_clients
>= STDIO_MAX_CLIENTS
)
771 chr
= qemu_chr_open_fd(0, 1);
772 chr
->chr_close
= qemu_chr_close_stdio
;
773 qemu_set_fd_handler2(0, stdio_read_poll
, stdio_read
, NULL
, chr
);
781 /* Once Solaris has openpty(), this is going to be removed. */
782 static int openpty(int *amaster
, int *aslave
, char *name
,
783 struct termios
*termp
, struct winsize
*winp
)
786 int mfd
= -1, sfd
= -1;
788 *amaster
= *aslave
= -1;
790 mfd
= open("/dev/ptmx", O_RDWR
| O_NOCTTY
);
794 if (grantpt(mfd
) == -1 || unlockpt(mfd
) == -1)
797 if ((slave
= ptsname(mfd
)) == NULL
)
800 if ((sfd
= open(slave
, O_RDONLY
| O_NOCTTY
)) == -1)
803 if (ioctl(sfd
, I_PUSH
, "ptem") == -1 ||
804 (termp
!= NULL
&& tcgetattr(sfd
, termp
) < 0))
812 ioctl(sfd
, TIOCSWINSZ
, winp
);
823 static void cfmakeraw (struct termios
*termios_p
)
825 termios_p
->c_iflag
&=
826 ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
827 termios_p
->c_oflag
&= ~OPOST
;
828 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
829 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
830 termios_p
->c_cflag
|= CS8
;
832 termios_p
->c_cc
[VMIN
] = 0;
833 termios_p
->c_cc
[VTIME
] = 0;
837 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
838 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
848 static void pty_chr_update_read_handler(CharDriverState
*chr
);
849 static void pty_chr_state(CharDriverState
*chr
, int connected
);
851 static int pty_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
853 PtyCharDriver
*s
= chr
->opaque
;
856 /* guest sends data, check for (re-)connect */
857 pty_chr_update_read_handler(chr
);
860 return send_all(s
->fd
, buf
, len
);
863 static int pty_chr_read_poll(void *opaque
)
865 CharDriverState
*chr
= opaque
;
866 PtyCharDriver
*s
= chr
->opaque
;
868 s
->read_bytes
= qemu_chr_can_read(chr
);
869 return s
->read_bytes
;
872 static void pty_chr_read(void *opaque
)
874 CharDriverState
*chr
= opaque
;
875 PtyCharDriver
*s
= chr
->opaque
;
880 if (len
> s
->read_bytes
)
884 size
= read(s
->fd
, buf
, len
);
885 if ((size
== -1 && errno
== EIO
) ||
887 pty_chr_state(chr
, 0);
891 pty_chr_state(chr
, 1);
892 qemu_chr_read(chr
, buf
, size
);
896 static void pty_chr_update_read_handler(CharDriverState
*chr
)
898 PtyCharDriver
*s
= chr
->opaque
;
900 qemu_set_fd_handler2(s
->fd
, pty_chr_read_poll
,
901 pty_chr_read
, NULL
, chr
);
904 * Short timeout here: just need wait long enougth that qemu makes
905 * it through the poll loop once. When reconnected we want a
906 * short timeout so we notice it almost instantly. Otherwise
907 * read() gives us -EIO instantly, making pty_chr_state() reset the
908 * timeout to the normal (much longer) poll interval before the
911 qemu_mod_timer(s
->timer
, qemu_get_clock(rt_clock
) + 10);
914 static void pty_chr_state(CharDriverState
*chr
, int connected
)
916 PtyCharDriver
*s
= chr
->opaque
;
919 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
922 /* (re-)connect poll interval for idle guests: once per second.
923 * We check more frequently in case the guests sends data to
924 * the virtual device linked to our pty. */
925 qemu_mod_timer(s
->timer
, qemu_get_clock(rt_clock
) + 1000);
933 static void pty_chr_timer(void *opaque
)
935 struct CharDriverState
*chr
= opaque
;
936 PtyCharDriver
*s
= chr
->opaque
;
941 /* If we arrive here without polling being cleared due
942 * read returning -EIO, then we are (re-)connected */
943 pty_chr_state(chr
, 1);
948 pty_chr_update_read_handler(chr
);
951 static void pty_chr_close(struct CharDriverState
*chr
)
953 PtyCharDriver
*s
= chr
->opaque
;
955 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
957 qemu_del_timer(s
->timer
);
958 qemu_free_timer(s
->timer
);
960 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
963 static CharDriverState
*qemu_chr_open_pty(QemuOpts
*opts
)
965 CharDriverState
*chr
;
969 #if defined(__OpenBSD__) || defined(__DragonFly__)
970 char pty_name
[PATH_MAX
];
971 #define q_ptsname(x) pty_name
973 char *pty_name
= NULL
;
974 #define q_ptsname(x) ptsname(x)
977 chr
= qemu_mallocz(sizeof(CharDriverState
));
978 s
= qemu_mallocz(sizeof(PtyCharDriver
));
980 if (openpty(&s
->fd
, &slave_fd
, pty_name
, NULL
, NULL
) < 0) {
984 /* Set raw attributes on the pty. */
985 tcgetattr(slave_fd
, &tty
);
987 tcsetattr(slave_fd
, TCSAFLUSH
, &tty
);
990 len
= strlen(q_ptsname(s
->fd
)) + 5;
991 chr
->filename
= qemu_malloc(len
);
992 snprintf(chr
->filename
, len
, "pty:%s", q_ptsname(s
->fd
));
993 qemu_opt_set(opts
, "path", q_ptsname(s
->fd
));
994 fprintf(stderr
, "char device redirected to %s\n", q_ptsname(s
->fd
));
997 chr
->chr_write
= pty_chr_write
;
998 chr
->chr_update_read_handler
= pty_chr_update_read_handler
;
999 chr
->chr_close
= pty_chr_close
;
1001 s
->timer
= qemu_new_timer(rt_clock
, pty_chr_timer
, chr
);
1006 static void tty_serial_init(int fd
, int speed
,
1007 int parity
, int data_bits
, int stop_bits
)
1013 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1014 speed
, parity
, data_bits
, stop_bits
);
1016 tcgetattr (fd
, &tty
);
1019 if (speed
<= 50 * MARGIN
)
1021 else if (speed
<= 75 * MARGIN
)
1023 else if (speed
<= 300 * MARGIN
)
1025 else if (speed
<= 600 * MARGIN
)
1027 else if (speed
<= 1200 * MARGIN
)
1029 else if (speed
<= 2400 * MARGIN
)
1031 else if (speed
<= 4800 * MARGIN
)
1033 else if (speed
<= 9600 * MARGIN
)
1035 else if (speed
<= 19200 * MARGIN
)
1037 else if (speed
<= 38400 * MARGIN
)
1039 else if (speed
<= 57600 * MARGIN
)
1041 else if (speed
<= 115200 * MARGIN
)
1046 cfsetispeed(&tty
, spd
);
1047 cfsetospeed(&tty
, spd
);
1049 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1050 |INLCR
|IGNCR
|ICRNL
|IXON
);
1051 tty
.c_oflag
|= OPOST
;
1052 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
|ISIG
);
1053 tty
.c_cflag
&= ~(CSIZE
|PARENB
|PARODD
|CRTSCTS
|CSTOPB
);
1074 tty
.c_cflag
|= PARENB
;
1077 tty
.c_cflag
|= PARENB
| PARODD
;
1081 tty
.c_cflag
|= CSTOPB
;
1083 tcsetattr (fd
, TCSANOW
, &tty
);
1086 static int tty_serial_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1088 FDCharDriver
*s
= chr
->opaque
;
1091 case CHR_IOCTL_SERIAL_SET_PARAMS
:
1093 QEMUSerialSetParams
*ssp
= arg
;
1094 tty_serial_init(s
->fd_in
, ssp
->speed
, ssp
->parity
,
1095 ssp
->data_bits
, ssp
->stop_bits
);
1098 case CHR_IOCTL_SERIAL_SET_BREAK
:
1100 int enable
= *(int *)arg
;
1102 tcsendbreak(s
->fd_in
, 1);
1105 case CHR_IOCTL_SERIAL_GET_TIOCM
:
1108 int *targ
= (int *)arg
;
1109 ioctl(s
->fd_in
, TIOCMGET
, &sarg
);
1111 if (sarg
& TIOCM_CTS
)
1112 *targ
|= CHR_TIOCM_CTS
;
1113 if (sarg
& TIOCM_CAR
)
1114 *targ
|= CHR_TIOCM_CAR
;
1115 if (sarg
& TIOCM_DSR
)
1116 *targ
|= CHR_TIOCM_DSR
;
1117 if (sarg
& TIOCM_RI
)
1118 *targ
|= CHR_TIOCM_RI
;
1119 if (sarg
& TIOCM_DTR
)
1120 *targ
|= CHR_TIOCM_DTR
;
1121 if (sarg
& TIOCM_RTS
)
1122 *targ
|= CHR_TIOCM_RTS
;
1125 case CHR_IOCTL_SERIAL_SET_TIOCM
:
1127 int sarg
= *(int *)arg
;
1129 ioctl(s
->fd_in
, TIOCMGET
, &targ
);
1130 targ
&= ~(CHR_TIOCM_CTS
| CHR_TIOCM_CAR
| CHR_TIOCM_DSR
1131 | CHR_TIOCM_RI
| CHR_TIOCM_DTR
| CHR_TIOCM_RTS
);
1132 if (sarg
& CHR_TIOCM_CTS
)
1134 if (sarg
& CHR_TIOCM_CAR
)
1136 if (sarg
& CHR_TIOCM_DSR
)
1138 if (sarg
& CHR_TIOCM_RI
)
1140 if (sarg
& CHR_TIOCM_DTR
)
1142 if (sarg
& CHR_TIOCM_RTS
)
1144 ioctl(s
->fd_in
, TIOCMSET
, &targ
);
1153 static CharDriverState
*qemu_chr_open_tty(QemuOpts
*opts
)
1155 const char *filename
= qemu_opt_get(opts
, "path");
1156 CharDriverState
*chr
;
1159 TFR(fd
= open(filename
, O_RDWR
| O_NONBLOCK
));
1160 tty_serial_init(fd
, 115200, 'N', 8, 1);
1161 chr
= qemu_chr_open_fd(fd
, fd
);
1166 chr
->chr_ioctl
= tty_serial_ioctl
;
1167 qemu_chr_reset(chr
);
1170 #else /* ! __linux__ && ! __sun__ */
1171 static CharDriverState
*qemu_chr_open_pty(void)
1175 #endif /* __linux__ || __sun__ */
1177 #if defined(__linux__)
1181 } ParallelCharDriver
;
1183 static int pp_hw_mode(ParallelCharDriver
*s
, uint16_t mode
)
1185 if (s
->mode
!= mode
) {
1187 if (ioctl(s
->fd
, PPSETMODE
, &m
) < 0)
1194 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1196 ParallelCharDriver
*drv
= chr
->opaque
;
1201 case CHR_IOCTL_PP_READ_DATA
:
1202 if (ioctl(fd
, PPRDATA
, &b
) < 0)
1204 *(uint8_t *)arg
= b
;
1206 case CHR_IOCTL_PP_WRITE_DATA
:
1207 b
= *(uint8_t *)arg
;
1208 if (ioctl(fd
, PPWDATA
, &b
) < 0)
1211 case CHR_IOCTL_PP_READ_CONTROL
:
1212 if (ioctl(fd
, PPRCONTROL
, &b
) < 0)
1214 /* Linux gives only the lowest bits, and no way to know data
1215 direction! For better compatibility set the fixed upper
1217 *(uint8_t *)arg
= b
| 0xc0;
1219 case CHR_IOCTL_PP_WRITE_CONTROL
:
1220 b
= *(uint8_t *)arg
;
1221 if (ioctl(fd
, PPWCONTROL
, &b
) < 0)
1224 case CHR_IOCTL_PP_READ_STATUS
:
1225 if (ioctl(fd
, PPRSTATUS
, &b
) < 0)
1227 *(uint8_t *)arg
= b
;
1229 case CHR_IOCTL_PP_DATA_DIR
:
1230 if (ioctl(fd
, PPDATADIR
, (int *)arg
) < 0)
1233 case CHR_IOCTL_PP_EPP_READ_ADDR
:
1234 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1235 struct ParallelIOArg
*parg
= arg
;
1236 int n
= read(fd
, parg
->buffer
, parg
->count
);
1237 if (n
!= parg
->count
) {
1242 case CHR_IOCTL_PP_EPP_READ
:
1243 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1244 struct ParallelIOArg
*parg
= arg
;
1245 int n
= read(fd
, parg
->buffer
, parg
->count
);
1246 if (n
!= parg
->count
) {
1251 case CHR_IOCTL_PP_EPP_WRITE_ADDR
:
1252 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1253 struct ParallelIOArg
*parg
= arg
;
1254 int n
= write(fd
, parg
->buffer
, parg
->count
);
1255 if (n
!= parg
->count
) {
1260 case CHR_IOCTL_PP_EPP_WRITE
:
1261 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1262 struct ParallelIOArg
*parg
= arg
;
1263 int n
= write(fd
, parg
->buffer
, parg
->count
);
1264 if (n
!= parg
->count
) {
1275 static void pp_close(CharDriverState
*chr
)
1277 ParallelCharDriver
*drv
= chr
->opaque
;
1280 pp_hw_mode(drv
, IEEE1284_MODE_COMPAT
);
1281 ioctl(fd
, PPRELEASE
);
1284 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1287 static CharDriverState
*qemu_chr_open_pp(QemuOpts
*opts
)
1289 const char *filename
= qemu_opt_get(opts
, "path");
1290 CharDriverState
*chr
;
1291 ParallelCharDriver
*drv
;
1294 TFR(fd
= open(filename
, O_RDWR
));
1298 if (ioctl(fd
, PPCLAIM
) < 0) {
1303 drv
= qemu_mallocz(sizeof(ParallelCharDriver
));
1305 drv
->mode
= IEEE1284_MODE_COMPAT
;
1307 chr
= qemu_mallocz(sizeof(CharDriverState
));
1308 chr
->chr_write
= null_chr_write
;
1309 chr
->chr_ioctl
= pp_ioctl
;
1310 chr
->chr_close
= pp_close
;
1313 qemu_chr_reset(chr
);
1317 #endif /* __linux__ */
1319 #if defined(__FreeBSD__) || defined(__DragonFly__)
1320 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1322 int fd
= (int)chr
->opaque
;
1326 case CHR_IOCTL_PP_READ_DATA
:
1327 if (ioctl(fd
, PPIGDATA
, &b
) < 0)
1329 *(uint8_t *)arg
= b
;
1331 case CHR_IOCTL_PP_WRITE_DATA
:
1332 b
= *(uint8_t *)arg
;
1333 if (ioctl(fd
, PPISDATA
, &b
) < 0)
1336 case CHR_IOCTL_PP_READ_CONTROL
:
1337 if (ioctl(fd
, PPIGCTRL
, &b
) < 0)
1339 *(uint8_t *)arg
= b
;
1341 case CHR_IOCTL_PP_WRITE_CONTROL
:
1342 b
= *(uint8_t *)arg
;
1343 if (ioctl(fd
, PPISCTRL
, &b
) < 0)
1346 case CHR_IOCTL_PP_READ_STATUS
:
1347 if (ioctl(fd
, PPIGSTATUS
, &b
) < 0)
1349 *(uint8_t *)arg
= b
;
1357 static CharDriverState
*qemu_chr_open_pp(QemuOpts
*opts
)
1359 const char *filename
= qemu_opt_get(opts
, "path");
1360 CharDriverState
*chr
;
1363 fd
= open(filename
, O_RDWR
);
1367 chr
= qemu_mallocz(sizeof(CharDriverState
));
1368 chr
->opaque
= (void *)fd
;
1369 chr
->chr_write
= null_chr_write
;
1370 chr
->chr_ioctl
= pp_ioctl
;
1379 HANDLE hcom
, hrecv
, hsend
;
1380 OVERLAPPED orecv
, osend
;
1385 #define NSENDBUF 2048
1386 #define NRECVBUF 2048
1387 #define MAXCONNECT 1
1388 #define NTIMEOUT 5000
1390 static int win_chr_poll(void *opaque
);
1391 static int win_chr_pipe_poll(void *opaque
);
1393 static void win_chr_close(CharDriverState
*chr
)
1395 WinCharState
*s
= chr
->opaque
;
1398 CloseHandle(s
->hsend
);
1402 CloseHandle(s
->hrecv
);
1406 CloseHandle(s
->hcom
);
1410 qemu_del_polling_cb(win_chr_pipe_poll
, chr
);
1412 qemu_del_polling_cb(win_chr_poll
, chr
);
1414 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1417 static int win_chr_init(CharDriverState
*chr
, const char *filename
)
1419 WinCharState
*s
= chr
->opaque
;
1421 COMMTIMEOUTS cto
= { 0, 0, 0, 0, 0};
1426 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1428 fprintf(stderr
, "Failed CreateEvent\n");
1431 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1433 fprintf(stderr
, "Failed CreateEvent\n");
1437 s
->hcom
= CreateFile(filename
, GENERIC_READ
|GENERIC_WRITE
, 0, NULL
,
1438 OPEN_EXISTING
, FILE_FLAG_OVERLAPPED
, 0);
1439 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1440 fprintf(stderr
, "Failed CreateFile (%lu)\n", GetLastError());
1445 if (!SetupComm(s
->hcom
, NRECVBUF
, NSENDBUF
)) {
1446 fprintf(stderr
, "Failed SetupComm\n");
1450 ZeroMemory(&comcfg
, sizeof(COMMCONFIG
));
1451 size
= sizeof(COMMCONFIG
);
1452 GetDefaultCommConfig(filename
, &comcfg
, &size
);
1453 comcfg
.dcb
.DCBlength
= sizeof(DCB
);
1454 CommConfigDialog(filename
, NULL
, &comcfg
);
1456 if (!SetCommState(s
->hcom
, &comcfg
.dcb
)) {
1457 fprintf(stderr
, "Failed SetCommState\n");
1461 if (!SetCommMask(s
->hcom
, EV_ERR
)) {
1462 fprintf(stderr
, "Failed SetCommMask\n");
1466 cto
.ReadIntervalTimeout
= MAXDWORD
;
1467 if (!SetCommTimeouts(s
->hcom
, &cto
)) {
1468 fprintf(stderr
, "Failed SetCommTimeouts\n");
1472 if (!ClearCommError(s
->hcom
, &err
, &comstat
)) {
1473 fprintf(stderr
, "Failed ClearCommError\n");
1476 qemu_add_polling_cb(win_chr_poll
, chr
);
1484 static int win_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len1
)
1486 WinCharState
*s
= chr
->opaque
;
1487 DWORD len
, ret
, size
, err
;
1490 ZeroMemory(&s
->osend
, sizeof(s
->osend
));
1491 s
->osend
.hEvent
= s
->hsend
;
1494 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, &s
->osend
);
1496 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, NULL
);
1498 err
= GetLastError();
1499 if (err
== ERROR_IO_PENDING
) {
1500 ret
= GetOverlappedResult(s
->hcom
, &s
->osend
, &size
, TRUE
);
1518 static int win_chr_read_poll(CharDriverState
*chr
)
1520 WinCharState
*s
= chr
->opaque
;
1522 s
->max_size
= qemu_chr_can_read(chr
);
1526 static void win_chr_readfile(CharDriverState
*chr
)
1528 WinCharState
*s
= chr
->opaque
;
1533 ZeroMemory(&s
->orecv
, sizeof(s
->orecv
));
1534 s
->orecv
.hEvent
= s
->hrecv
;
1535 ret
= ReadFile(s
->hcom
, buf
, s
->len
, &size
, &s
->orecv
);
1537 err
= GetLastError();
1538 if (err
== ERROR_IO_PENDING
) {
1539 ret
= GetOverlappedResult(s
->hcom
, &s
->orecv
, &size
, TRUE
);
1544 qemu_chr_read(chr
, buf
, size
);
1548 static void win_chr_read(CharDriverState
*chr
)
1550 WinCharState
*s
= chr
->opaque
;
1552 if (s
->len
> s
->max_size
)
1553 s
->len
= s
->max_size
;
1557 win_chr_readfile(chr
);
1560 static int win_chr_poll(void *opaque
)
1562 CharDriverState
*chr
= opaque
;
1563 WinCharState
*s
= chr
->opaque
;
1567 ClearCommError(s
->hcom
, &comerr
, &status
);
1568 if (status
.cbInQue
> 0) {
1569 s
->len
= status
.cbInQue
;
1570 win_chr_read_poll(chr
);
1577 static CharDriverState
*qemu_chr_open_win(QemuOpts
*opts
)
1579 const char *filename
= qemu_opt_get(opts
, "path");
1580 CharDriverState
*chr
;
1583 chr
= qemu_mallocz(sizeof(CharDriverState
));
1584 s
= qemu_mallocz(sizeof(WinCharState
));
1586 chr
->chr_write
= win_chr_write
;
1587 chr
->chr_close
= win_chr_close
;
1589 if (win_chr_init(chr
, filename
) < 0) {
1594 qemu_chr_reset(chr
);
1598 static int win_chr_pipe_poll(void *opaque
)
1600 CharDriverState
*chr
= opaque
;
1601 WinCharState
*s
= chr
->opaque
;
1604 PeekNamedPipe(s
->hcom
, NULL
, 0, NULL
, &size
, NULL
);
1607 win_chr_read_poll(chr
);
1614 static int win_chr_pipe_init(CharDriverState
*chr
, const char *filename
)
1616 WinCharState
*s
= chr
->opaque
;
1624 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1626 fprintf(stderr
, "Failed CreateEvent\n");
1629 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1631 fprintf(stderr
, "Failed CreateEvent\n");
1635 snprintf(openname
, sizeof(openname
), "\\\\.\\pipe\\%s", filename
);
1636 s
->hcom
= CreateNamedPipe(openname
, PIPE_ACCESS_DUPLEX
| FILE_FLAG_OVERLAPPED
,
1637 PIPE_TYPE_BYTE
| PIPE_READMODE_BYTE
|
1639 MAXCONNECT
, NSENDBUF
, NRECVBUF
, NTIMEOUT
, NULL
);
1640 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1641 fprintf(stderr
, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1646 ZeroMemory(&ov
, sizeof(ov
));
1647 ov
.hEvent
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1648 ret
= ConnectNamedPipe(s
->hcom
, &ov
);
1650 fprintf(stderr
, "Failed ConnectNamedPipe\n");
1654 ret
= GetOverlappedResult(s
->hcom
, &ov
, &size
, TRUE
);
1656 fprintf(stderr
, "Failed GetOverlappedResult\n");
1658 CloseHandle(ov
.hEvent
);
1665 CloseHandle(ov
.hEvent
);
1668 qemu_add_polling_cb(win_chr_pipe_poll
, chr
);
1677 static CharDriverState
*qemu_chr_open_win_pipe(QemuOpts
*opts
)
1679 const char *filename
= qemu_opt_get(opts
, "path");
1680 CharDriverState
*chr
;
1683 chr
= qemu_mallocz(sizeof(CharDriverState
));
1684 s
= qemu_mallocz(sizeof(WinCharState
));
1686 chr
->chr_write
= win_chr_write
;
1687 chr
->chr_close
= win_chr_close
;
1689 if (win_chr_pipe_init(chr
, filename
) < 0) {
1694 qemu_chr_reset(chr
);
1698 static CharDriverState
*qemu_chr_open_win_file(HANDLE fd_out
)
1700 CharDriverState
*chr
;
1703 chr
= qemu_mallocz(sizeof(CharDriverState
));
1704 s
= qemu_mallocz(sizeof(WinCharState
));
1707 chr
->chr_write
= win_chr_write
;
1708 qemu_chr_reset(chr
);
1712 static CharDriverState
*qemu_chr_open_win_con(QemuOpts
*opts
)
1714 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE
));
1717 static CharDriverState
*qemu_chr_open_win_file_out(QemuOpts
*opts
)
1719 const char *file_out
= qemu_opt_get(opts
, "path");
1722 fd_out
= CreateFile(file_out
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
1723 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
1724 if (fd_out
== INVALID_HANDLE_VALUE
)
1727 return qemu_chr_open_win_file(fd_out
);
1729 #endif /* !_WIN32 */
1731 /***********************************************************/
1732 /* UDP Net console */
1742 static int udp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1744 NetCharDriver
*s
= chr
->opaque
;
1746 return send(s
->fd
, (const void *)buf
, len
, 0);
1749 static int udp_chr_read_poll(void *opaque
)
1751 CharDriverState
*chr
= opaque
;
1752 NetCharDriver
*s
= chr
->opaque
;
1754 s
->max_size
= qemu_chr_can_read(chr
);
1756 /* If there were any stray characters in the queue process them
1759 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
1760 qemu_chr_read(chr
, &s
->buf
[s
->bufptr
], 1);
1762 s
->max_size
= qemu_chr_can_read(chr
);
1767 static void udp_chr_read(void *opaque
)
1769 CharDriverState
*chr
= opaque
;
1770 NetCharDriver
*s
= chr
->opaque
;
1772 if (s
->max_size
== 0)
1774 s
->bufcnt
= recv(s
->fd
, (void *)s
->buf
, sizeof(s
->buf
), 0);
1775 s
->bufptr
= s
->bufcnt
;
1780 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
1781 qemu_chr_read(chr
, &s
->buf
[s
->bufptr
], 1);
1783 s
->max_size
= qemu_chr_can_read(chr
);
1787 static void udp_chr_update_read_handler(CharDriverState
*chr
)
1789 NetCharDriver
*s
= chr
->opaque
;
1792 qemu_set_fd_handler2(s
->fd
, udp_chr_read_poll
,
1793 udp_chr_read
, NULL
, chr
);
1797 static void udp_chr_close(CharDriverState
*chr
)
1799 NetCharDriver
*s
= chr
->opaque
;
1801 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1805 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1808 static CharDriverState
*qemu_chr_open_udp(QemuOpts
*opts
)
1810 CharDriverState
*chr
= NULL
;
1811 NetCharDriver
*s
= NULL
;
1814 chr
= qemu_mallocz(sizeof(CharDriverState
));
1815 s
= qemu_mallocz(sizeof(NetCharDriver
));
1817 fd
= inet_dgram_opts(opts
);
1819 fprintf(stderr
, "inet_dgram_opts failed\n");
1827 chr
->chr_write
= udp_chr_write
;
1828 chr
->chr_update_read_handler
= udp_chr_update_read_handler
;
1829 chr
->chr_close
= udp_chr_close
;
1842 /***********************************************************/
1843 /* TCP Net console */
1855 static void tcp_chr_accept(void *opaque
);
1857 static int tcp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1859 TCPCharDriver
*s
= chr
->opaque
;
1861 return send_all(s
->fd
, buf
, len
);
1863 /* XXX: indicate an error ? */
1868 static int tcp_chr_read_poll(void *opaque
)
1870 CharDriverState
*chr
= opaque
;
1871 TCPCharDriver
*s
= chr
->opaque
;
1874 s
->max_size
= qemu_chr_can_read(chr
);
1879 #define IAC_BREAK 243
1880 static void tcp_chr_process_IAC_bytes(CharDriverState
*chr
,
1882 uint8_t *buf
, int *size
)
1884 /* Handle any telnet client's basic IAC options to satisfy char by
1885 * char mode with no echo. All IAC options will be removed from
1886 * the buf and the do_telnetopt variable will be used to track the
1887 * state of the width of the IAC information.
1889 * IAC commands come in sets of 3 bytes with the exception of the
1890 * "IAC BREAK" command and the double IAC.
1896 for (i
= 0; i
< *size
; i
++) {
1897 if (s
->do_telnetopt
> 1) {
1898 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
1899 /* Double IAC means send an IAC */
1903 s
->do_telnetopt
= 1;
1905 if ((unsigned char)buf
[i
] == IAC_BREAK
&& s
->do_telnetopt
== 2) {
1906 /* Handle IAC break commands by sending a serial break */
1907 qemu_chr_event(chr
, CHR_EVENT_BREAK
);
1912 if (s
->do_telnetopt
>= 4) {
1913 s
->do_telnetopt
= 1;
1916 if ((unsigned char)buf
[i
] == IAC
) {
1917 s
->do_telnetopt
= 2;
1928 static int tcp_get_msgfd(CharDriverState
*chr
)
1930 TCPCharDriver
*s
= chr
->opaque
;
1936 static void unix_process_msgfd(CharDriverState
*chr
, struct msghdr
*msg
)
1938 TCPCharDriver
*s
= chr
->opaque
;
1939 struct cmsghdr
*cmsg
;
1941 for (cmsg
= CMSG_FIRSTHDR(msg
); cmsg
; cmsg
= CMSG_NXTHDR(msg
, cmsg
)) {
1944 if (cmsg
->cmsg_len
!= CMSG_LEN(sizeof(int)) ||
1945 cmsg
->cmsg_level
!= SOL_SOCKET
||
1946 cmsg
->cmsg_type
!= SCM_RIGHTS
)
1949 fd
= *((int *)CMSG_DATA(cmsg
));
1959 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
1961 TCPCharDriver
*s
= chr
->opaque
;
1962 struct msghdr msg
= { NULL
, };
1963 struct iovec iov
[1];
1965 struct cmsghdr cmsg
;
1966 char control
[CMSG_SPACE(sizeof(int))];
1970 iov
[0].iov_base
= buf
;
1971 iov
[0].iov_len
= len
;
1975 msg
.msg_control
= &msg_control
;
1976 msg
.msg_controllen
= sizeof(msg_control
);
1978 ret
= recvmsg(s
->fd
, &msg
, 0);
1979 if (ret
> 0 && s
->is_unix
)
1980 unix_process_msgfd(chr
, &msg
);
1985 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
1987 TCPCharDriver
*s
= chr
->opaque
;
1988 return recv(s
->fd
, buf
, len
, 0);
1992 static void tcp_chr_read(void *opaque
)
1994 CharDriverState
*chr
= opaque
;
1995 TCPCharDriver
*s
= chr
->opaque
;
1999 if (!s
->connected
|| s
->max_size
<= 0)
2002 if (len
> s
->max_size
)
2004 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
2006 /* connection closed */
2008 if (s
->listen_fd
>= 0) {
2009 qemu_set_fd_handler(s
->listen_fd
, tcp_chr_accept
, NULL
, chr
);
2011 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
2014 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
2015 } else if (size
> 0) {
2016 if (s
->do_telnetopt
)
2017 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
2019 qemu_chr_read(chr
, buf
, size
);
2020 if (s
->msgfd
!= -1) {
2027 static void tcp_chr_connect(void *opaque
)
2029 CharDriverState
*chr
= opaque
;
2030 TCPCharDriver
*s
= chr
->opaque
;
2033 qemu_set_fd_handler2(s
->fd
, tcp_chr_read_poll
,
2034 tcp_chr_read
, NULL
, chr
);
2035 qemu_chr_reset(chr
);
2038 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2039 static void tcp_chr_telnet_init(int fd
)
2042 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2043 IACSET(buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2044 send(fd
, (char *)buf
, 3, 0);
2045 IACSET(buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2046 send(fd
, (char *)buf
, 3, 0);
2047 IACSET(buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2048 send(fd
, (char *)buf
, 3, 0);
2049 IACSET(buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2050 send(fd
, (char *)buf
, 3, 0);
2053 static void socket_set_nodelay(int fd
)
2056 setsockopt(fd
, IPPROTO_TCP
, TCP_NODELAY
, (char *)&val
, sizeof(val
));
2059 static void tcp_chr_accept(void *opaque
)
2061 CharDriverState
*chr
= opaque
;
2062 TCPCharDriver
*s
= chr
->opaque
;
2063 struct sockaddr_in saddr
;
2065 struct sockaddr_un uaddr
;
2067 struct sockaddr
*addr
;
2074 len
= sizeof(uaddr
);
2075 addr
= (struct sockaddr
*)&uaddr
;
2079 len
= sizeof(saddr
);
2080 addr
= (struct sockaddr
*)&saddr
;
2082 fd
= accept(s
->listen_fd
, addr
, &len
);
2083 if (fd
< 0 && errno
!= EINTR
) {
2085 } else if (fd
>= 0) {
2086 if (s
->do_telnetopt
)
2087 tcp_chr_telnet_init(fd
);
2091 socket_set_nonblock(fd
);
2093 socket_set_nodelay(fd
);
2095 qemu_set_fd_handler(s
->listen_fd
, NULL
, NULL
, NULL
);
2096 tcp_chr_connect(chr
);
2099 static void tcp_chr_close(CharDriverState
*chr
)
2101 TCPCharDriver
*s
= chr
->opaque
;
2103 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
2106 if (s
->listen_fd
>= 0) {
2107 qemu_set_fd_handler(s
->listen_fd
, NULL
, NULL
, NULL
);
2108 closesocket(s
->listen_fd
);
2111 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
2114 static CharDriverState
*qemu_chr_open_socket(QemuOpts
*opts
)
2116 CharDriverState
*chr
= NULL
;
2117 TCPCharDriver
*s
= NULL
;
2125 is_listen
= qemu_opt_get_bool(opts
, "server", 0);
2126 is_waitconnect
= qemu_opt_get_bool(opts
, "wait", 1);
2127 is_telnet
= qemu_opt_get_bool(opts
, "telnet", 0);
2128 do_nodelay
= !qemu_opt_get_bool(opts
, "delay", 1);
2129 is_unix
= qemu_opt_get(opts
, "path") != NULL
;
2133 chr
= qemu_mallocz(sizeof(CharDriverState
));
2134 s
= qemu_mallocz(sizeof(TCPCharDriver
));
2138 fd
= unix_listen_opts(opts
);
2140 fd
= unix_connect_opts(opts
);
2144 fd
= inet_listen_opts(opts
, 0);
2146 fd
= inet_connect_opts(opts
);
2152 if (!is_waitconnect
)
2153 socket_set_nonblock(fd
);
2159 s
->is_unix
= is_unix
;
2160 s
->do_nodelay
= do_nodelay
&& !is_unix
;
2163 chr
->chr_write
= tcp_chr_write
;
2164 chr
->chr_close
= tcp_chr_close
;
2165 chr
->get_msgfd
= tcp_get_msgfd
;
2169 qemu_set_fd_handler(s
->listen_fd
, tcp_chr_accept
, NULL
, chr
);
2171 s
->do_telnetopt
= 1;
2176 socket_set_nodelay(fd
);
2177 tcp_chr_connect(chr
);
2180 /* for "info chardev" monitor command */
2181 chr
->filename
= qemu_malloc(256);
2183 snprintf(chr
->filename
, 256, "unix:%s%s",
2184 qemu_opt_get(opts
, "path"),
2185 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2186 } else if (is_telnet
) {
2187 snprintf(chr
->filename
, 256, "telnet:%s:%s%s",
2188 qemu_opt_get(opts
, "host"), qemu_opt_get(opts
, "port"),
2189 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2191 snprintf(chr
->filename
, 256, "tcp:%s:%s%s",
2192 qemu_opt_get(opts
, "host"), qemu_opt_get(opts
, "port"),
2193 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2196 if (is_listen
&& is_waitconnect
) {
2197 printf("QEMU waiting for connection on: %s\n",
2199 tcp_chr_accept(chr
);
2200 socket_set_nonblock(s
->listen_fd
);
2212 static QemuOpts
*qemu_chr_parse_compat(const char *label
, const char *filename
)
2214 char host
[65], port
[33], width
[8], height
[8];
2219 opts
= qemu_opts_create(&qemu_chardev_opts
, label
, 1);
2223 if (strstart(filename
, "mon:", &p
)) {
2225 qemu_opt_set(opts
, "mux", "on");
2228 if (strcmp(filename
, "null") == 0 ||
2229 strcmp(filename
, "pty") == 0 ||
2230 strcmp(filename
, "msmouse") == 0 ||
2231 strcmp(filename
, "braille") == 0 ||
2232 strcmp(filename
, "stdio") == 0) {
2233 qemu_opt_set(opts
, "backend", filename
);
2236 if (strstart(filename
, "vc", &p
)) {
2237 qemu_opt_set(opts
, "backend", "vc");
2239 if (sscanf(p
+1, "%8[0-9]x%8[0-9]", width
, height
) == 2) {
2241 qemu_opt_set(opts
, "width", width
);
2242 qemu_opt_set(opts
, "height", height
);
2243 } else if (sscanf(p
+1, "%8[0-9]Cx%8[0-9]C", width
, height
) == 2) {
2245 qemu_opt_set(opts
, "cols", width
);
2246 qemu_opt_set(opts
, "rows", height
);
2253 if (strcmp(filename
, "con:") == 0) {
2254 qemu_opt_set(opts
, "backend", "console");
2257 if (strstart(filename
, "COM", NULL
)) {
2258 qemu_opt_set(opts
, "backend", "serial");
2259 qemu_opt_set(opts
, "path", filename
);
2262 if (strstart(filename
, "file:", &p
)) {
2263 qemu_opt_set(opts
, "backend", "file");
2264 qemu_opt_set(opts
, "path", p
);
2267 if (strstart(filename
, "pipe:", &p
)) {
2268 qemu_opt_set(opts
, "backend", "pipe");
2269 qemu_opt_set(opts
, "path", p
);
2272 if (strstart(filename
, "tcp:", &p
) ||
2273 strstart(filename
, "telnet:", &p
)) {
2274 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2276 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1)
2279 qemu_opt_set(opts
, "backend", "socket");
2280 qemu_opt_set(opts
, "host", host
);
2281 qemu_opt_set(opts
, "port", port
);
2282 if (p
[pos
] == ',') {
2283 if (qemu_opts_do_parse(opts
, p
+pos
+1, NULL
) != 0)
2286 if (strstart(filename
, "telnet:", &p
))
2287 qemu_opt_set(opts
, "telnet", "on");
2290 if (strstart(filename
, "udp:", &p
)) {
2291 qemu_opt_set(opts
, "backend", "udp");
2292 if (sscanf(p
, "%64[^:]:%32[^@,]%n", host
, port
, &pos
) < 2) {
2294 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
2295 fprintf(stderr
, "udp #1\n");
2299 qemu_opt_set(opts
, "host", host
);
2300 qemu_opt_set(opts
, "port", port
);
2301 if (p
[pos
] == '@') {
2303 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2305 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
2306 fprintf(stderr
, "udp #2\n");
2310 qemu_opt_set(opts
, "localaddr", host
);
2311 qemu_opt_set(opts
, "localport", port
);
2315 if (strstart(filename
, "unix:", &p
)) {
2316 qemu_opt_set(opts
, "backend", "socket");
2317 if (qemu_opts_do_parse(opts
, p
, "path") != 0)
2321 if (strstart(filename
, "/dev/parport", NULL
) ||
2322 strstart(filename
, "/dev/ppi", NULL
)) {
2323 qemu_opt_set(opts
, "backend", "parport");
2324 qemu_opt_set(opts
, "path", filename
);
2327 if (strstart(filename
, "/dev/", NULL
)) {
2328 qemu_opt_set(opts
, "backend", "tty");
2329 qemu_opt_set(opts
, "path", filename
);
2334 fprintf(stderr
, "%s: fail on \"%s\"\n", __FUNCTION__
, filename
);
2335 qemu_opts_del(opts
);
2339 static const struct {
2341 CharDriverState
*(*open
)(QemuOpts
*opts
);
2342 } backend_table
[] = {
2343 { .name
= "null", .open
= qemu_chr_open_null
},
2344 { .name
= "socket", .open
= qemu_chr_open_socket
},
2345 { .name
= "udp", .open
= qemu_chr_open_udp
},
2346 { .name
= "msmouse", .open
= qemu_chr_open_msmouse
},
2347 { .name
= "vc", .open
= text_console_init
},
2349 { .name
= "file", .open
= qemu_chr_open_win_file_out
},
2350 { .name
= "pipe", .open
= qemu_chr_open_win_pipe
},
2351 { .name
= "console", .open
= qemu_chr_open_win_con
},
2352 { .name
= "serial", .open
= qemu_chr_open_win
},
2354 { .name
= "file", .open
= qemu_chr_open_file_out
},
2355 { .name
= "pipe", .open
= qemu_chr_open_pipe
},
2356 { .name
= "pty", .open
= qemu_chr_open_pty
},
2357 { .name
= "stdio", .open
= qemu_chr_open_stdio
},
2359 #ifdef CONFIG_BRLAPI
2360 { .name
= "braille", .open
= chr_baum_init
},
2362 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2363 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
2364 { .name
= "tty", .open
= qemu_chr_open_tty
},
2366 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__)
2367 { .name
= "parport", .open
= qemu_chr_open_pp
},
2371 CharDriverState
*qemu_chr_open_opts(QemuOpts
*opts
,
2372 void (*init
)(struct CharDriverState
*s
))
2374 CharDriverState
*chr
;
2377 if (qemu_opts_id(opts
) == NULL
) {
2378 fprintf(stderr
, "chardev: no id specified\n");
2382 for (i
= 0; i
< ARRAY_SIZE(backend_table
); i
++) {
2383 if (strcmp(backend_table
[i
].name
, qemu_opt_get(opts
, "backend")) == 0)
2386 if (i
== ARRAY_SIZE(backend_table
)) {
2387 fprintf(stderr
, "chardev: backend \"%s\" not found\n",
2388 qemu_opt_get(opts
, "backend"));
2392 chr
= backend_table
[i
].open(opts
);
2394 fprintf(stderr
, "chardev: opening backend \"%s\" failed\n",
2395 qemu_opt_get(opts
, "backend"));
2400 chr
->filename
= qemu_strdup(qemu_opt_get(opts
, "backend"));
2402 TAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
2404 if (qemu_opt_get_bool(opts
, "mux", 0)) {
2405 CharDriverState
*base
= chr
;
2406 int len
= strlen(qemu_opts_id(opts
)) + 6;
2407 base
->label
= qemu_malloc(len
);
2408 snprintf(base
->label
, len
, "%s-base", qemu_opts_id(opts
));
2409 chr
= qemu_chr_open_mux(base
);
2410 chr
->filename
= base
->filename
;
2411 TAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
2413 chr
->label
= qemu_strdup(qemu_opts_id(opts
));
2417 CharDriverState
*qemu_chr_open(const char *label
, const char *filename
, void (*init
)(struct CharDriverState
*s
))
2420 CharDriverState
*chr
;
2423 if (strstart(filename
, "chardev:", &p
)) {
2424 return qemu_chr_find(p
);
2427 opts
= qemu_chr_parse_compat(label
, filename
);
2431 chr
= qemu_chr_open_opts(opts
, init
);
2432 if (chr
&& qemu_opt_get_bool(opts
, "mux", 0)) {
2433 monitor_init(chr
, MONITOR_USE_READLINE
);
2438 void qemu_chr_close(CharDriverState
*chr
)
2440 TAILQ_REMOVE(&chardevs
, chr
, next
);
2442 chr
->chr_close(chr
);
2443 qemu_free(chr
->filename
);
2444 qemu_free(chr
->label
);
2448 void qemu_chr_info(Monitor
*mon
)
2450 CharDriverState
*chr
;
2452 TAILQ_FOREACH(chr
, &chardevs
, next
) {
2453 monitor_printf(mon
, "%s: filename=%s\n", chr
->label
, chr
->filename
);
2457 CharDriverState
*qemu_chr_find(const char *name
)
2459 CharDriverState
*chr
;
2461 TAILQ_FOREACH(chr
, &chardevs
, next
) {
2462 if (strcmp(chr
->label
, name
) != 0)