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"
35 #include "qemu-objects.h"
46 #include <sys/times.h>
50 #include <sys/ioctl.h>
51 #include <sys/resource.h>
52 #include <sys/socket.h>
53 #include <netinet/in.h>
55 #include <arpa/inet.h>
58 #include <sys/select.h>
61 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
63 #include <dev/ppbus/ppi.h>
64 #include <dev/ppbus/ppbconf.h>
65 #if defined(__GLIBC__)
68 #elif defined(__DragonFly__)
70 #include <dev/misc/ppi/ppi.h>
71 #include <bus/ppbus/ppbconf.h>
79 #include <linux/ppdev.h>
80 #include <linux/parport.h>
84 #include <sys/ethernet.h>
85 #include <sys/sockio.h>
86 #include <netinet/arp.h>
87 #include <netinet/in.h>
88 #include <netinet/in_systm.h>
89 #include <netinet/ip.h>
90 #include <netinet/ip_icmp.h> // must come after ip.h
91 #include <netinet/udp.h>
92 #include <netinet/tcp.h>
100 #include "qemu_socket.h"
102 #define READ_BUF_LEN 4096
104 /***********************************************************/
105 /* character device */
107 static QTAILQ_HEAD(CharDriverStateHead
, CharDriverState
) chardevs
=
108 QTAILQ_HEAD_INITIALIZER(chardevs
);
110 static void qemu_chr_event(CharDriverState
*s
, int event
)
114 s
->chr_event(s
->handler_opaque
, event
);
117 static void qemu_chr_generic_open_bh(void *opaque
)
119 CharDriverState
*s
= opaque
;
120 qemu_chr_event(s
, CHR_EVENT_OPENED
);
121 qemu_bh_delete(s
->bh
);
125 void qemu_chr_generic_open(CharDriverState
*s
)
128 s
->bh
= qemu_bh_new(qemu_chr_generic_open_bh
, s
);
129 qemu_bh_schedule(s
->bh
);
133 int qemu_chr_write(CharDriverState
*s
, const uint8_t *buf
, int len
)
135 return s
->chr_write(s
, buf
, len
);
138 int qemu_chr_ioctl(CharDriverState
*s
, int cmd
, void *arg
)
142 return s
->chr_ioctl(s
, cmd
, arg
);
145 int qemu_chr_can_read(CharDriverState
*s
)
147 if (!s
->chr_can_read
)
149 return s
->chr_can_read(s
->handler_opaque
);
152 void qemu_chr_read(CharDriverState
*s
, uint8_t *buf
, int len
)
154 s
->chr_read(s
->handler_opaque
, buf
, len
);
157 int qemu_chr_get_msgfd(CharDriverState
*s
)
159 return s
->get_msgfd
? s
->get_msgfd(s
) : -1;
162 void qemu_chr_accept_input(CharDriverState
*s
)
164 if (s
->chr_accept_input
)
165 s
->chr_accept_input(s
);
168 void qemu_chr_printf(CharDriverState
*s
, const char *fmt
, ...)
170 char buf
[READ_BUF_LEN
];
173 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
174 qemu_chr_write(s
, (uint8_t *)buf
, strlen(buf
));
178 void qemu_chr_send_event(CharDriverState
*s
, int event
)
180 if (s
->chr_send_event
)
181 s
->chr_send_event(s
, event
);
184 void qemu_chr_add_handlers(CharDriverState
*s
,
185 IOCanReadHandler
*fd_can_read
,
186 IOReadHandler
*fd_read
,
187 IOEventHandler
*fd_event
,
190 s
->chr_can_read
= fd_can_read
;
191 s
->chr_read
= fd_read
;
192 s
->chr_event
= fd_event
;
193 s
->handler_opaque
= opaque
;
194 if (s
->chr_update_read_handler
)
195 s
->chr_update_read_handler(s
);
198 static int null_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
203 static CharDriverState
*qemu_chr_open_null(QemuOpts
*opts
)
205 CharDriverState
*chr
;
207 chr
= qemu_mallocz(sizeof(CharDriverState
));
208 chr
->chr_write
= null_chr_write
;
212 /* MUX driver for serial I/O splitting */
214 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
215 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
217 IOCanReadHandler
*chr_can_read
[MAX_MUX
];
218 IOReadHandler
*chr_read
[MAX_MUX
];
219 IOEventHandler
*chr_event
[MAX_MUX
];
220 void *ext_opaque
[MAX_MUX
];
221 CharDriverState
*drv
;
226 /* Intermediate input buffer allows to catch escape sequences even if the
227 currently active device is not accepting any input - but only until it
229 unsigned char buffer
[MAX_MUX
][MUX_BUFFER_SIZE
];
234 int64_t timestamps_start
;
238 static int mux_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
240 MuxDriver
*d
= chr
->opaque
;
242 if (!d
->timestamps
) {
243 ret
= d
->drv
->chr_write(d
->drv
, buf
, len
);
248 for (i
= 0; i
< len
; i
++) {
254 ti
= qemu_get_clock(rt_clock
);
255 if (d
->timestamps_start
== -1)
256 d
->timestamps_start
= ti
;
257 ti
-= d
->timestamps_start
;
259 snprintf(buf1
, sizeof(buf1
),
260 "[%02d:%02d:%02d.%03d] ",
265 d
->drv
->chr_write(d
->drv
, (uint8_t *)buf1
, strlen(buf1
));
268 ret
+= d
->drv
->chr_write(d
->drv
, buf
+i
, 1);
269 if (buf
[i
] == '\n') {
277 static const char * const mux_help
[] = {
278 "% h print this help\n\r",
279 "% x exit emulator\n\r",
280 "% s save disk data back to file (if -snapshot)\n\r",
281 "% t toggle console timestamps\n\r"
282 "% b send break (magic sysrq)\n\r",
283 "% c switch between console and monitor\n\r",
288 int term_escape_char
= 0x01; /* ctrl-a is used for escape */
289 static void mux_print_help(CharDriverState
*chr
)
292 char ebuf
[15] = "Escape-Char";
293 char cbuf
[50] = "\n\r";
295 if (term_escape_char
> 0 && term_escape_char
< 26) {
296 snprintf(cbuf
, sizeof(cbuf
), "\n\r");
297 snprintf(ebuf
, sizeof(ebuf
), "C-%c", term_escape_char
- 1 + 'a');
299 snprintf(cbuf
, sizeof(cbuf
),
300 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
303 chr
->chr_write(chr
, (uint8_t *)cbuf
, strlen(cbuf
));
304 for (i
= 0; mux_help
[i
] != NULL
; i
++) {
305 for (j
=0; mux_help
[i
][j
] != '\0'; j
++) {
306 if (mux_help
[i
][j
] == '%')
307 chr
->chr_write(chr
, (uint8_t *)ebuf
, strlen(ebuf
));
309 chr
->chr_write(chr
, (uint8_t *)&mux_help
[i
][j
], 1);
314 static void mux_chr_send_event(MuxDriver
*d
, int mux_nr
, int event
)
316 if (d
->chr_event
[mux_nr
])
317 d
->chr_event
[mux_nr
](d
->ext_opaque
[mux_nr
], event
);
320 static int mux_proc_byte(CharDriverState
*chr
, MuxDriver
*d
, int ch
)
322 if (d
->term_got_escape
) {
323 d
->term_got_escape
= 0;
324 if (ch
== term_escape_char
)
333 const char *term
= "QEMU: Terminated\n\r";
334 chr
->chr_write(chr
,(uint8_t *)term
,strlen(term
));
341 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
342 bdrv_commit(dinfo
->bdrv
);
347 qemu_chr_event(chr
, CHR_EVENT_BREAK
);
350 /* Switch to the next registered device */
351 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
353 if (d
->focus
>= d
->mux_cnt
)
355 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
358 d
->timestamps
= !d
->timestamps
;
359 d
->timestamps_start
= -1;
363 } else if (ch
== term_escape_char
) {
364 d
->term_got_escape
= 1;
372 static void mux_chr_accept_input(CharDriverState
*chr
)
374 MuxDriver
*d
= chr
->opaque
;
377 while (d
->prod
[m
] != d
->cons
[m
] &&
378 d
->chr_can_read
[m
] &&
379 d
->chr_can_read
[m
](d
->ext_opaque
[m
])) {
380 d
->chr_read
[m
](d
->ext_opaque
[m
],
381 &d
->buffer
[m
][d
->cons
[m
]++ & MUX_BUFFER_MASK
], 1);
385 static int mux_chr_can_read(void *opaque
)
387 CharDriverState
*chr
= opaque
;
388 MuxDriver
*d
= chr
->opaque
;
391 if ((d
->prod
[m
] - d
->cons
[m
]) < MUX_BUFFER_SIZE
)
393 if (d
->chr_can_read
[m
])
394 return d
->chr_can_read
[m
](d
->ext_opaque
[m
]);
398 static void mux_chr_read(void *opaque
, const uint8_t *buf
, int size
)
400 CharDriverState
*chr
= opaque
;
401 MuxDriver
*d
= chr
->opaque
;
405 mux_chr_accept_input (opaque
);
407 for(i
= 0; i
< size
; i
++)
408 if (mux_proc_byte(chr
, d
, buf
[i
])) {
409 if (d
->prod
[m
] == d
->cons
[m
] &&
410 d
->chr_can_read
[m
] &&
411 d
->chr_can_read
[m
](d
->ext_opaque
[m
]))
412 d
->chr_read
[m
](d
->ext_opaque
[m
], &buf
[i
], 1);
414 d
->buffer
[m
][d
->prod
[m
]++ & MUX_BUFFER_MASK
] = buf
[i
];
418 static void mux_chr_event(void *opaque
, int event
)
420 CharDriverState
*chr
= opaque
;
421 MuxDriver
*d
= chr
->opaque
;
424 /* Send the event to all registered listeners */
425 for (i
= 0; i
< d
->mux_cnt
; i
++)
426 mux_chr_send_event(d
, i
, event
);
429 static void mux_chr_update_read_handler(CharDriverState
*chr
)
431 MuxDriver
*d
= chr
->opaque
;
433 if (d
->mux_cnt
>= MAX_MUX
) {
434 fprintf(stderr
, "Cannot add I/O handlers, MUX array is full\n");
437 d
->ext_opaque
[d
->mux_cnt
] = chr
->handler_opaque
;
438 d
->chr_can_read
[d
->mux_cnt
] = chr
->chr_can_read
;
439 d
->chr_read
[d
->mux_cnt
] = chr
->chr_read
;
440 d
->chr_event
[d
->mux_cnt
] = chr
->chr_event
;
441 /* Fix up the real driver with mux routines */
442 if (d
->mux_cnt
== 0) {
443 qemu_chr_add_handlers(d
->drv
, mux_chr_can_read
, mux_chr_read
,
446 if (d
->focus
!= -1) {
447 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
449 d
->focus
= d
->mux_cnt
;
451 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
454 static CharDriverState
*qemu_chr_open_mux(CharDriverState
*drv
)
456 CharDriverState
*chr
;
459 chr
= qemu_mallocz(sizeof(CharDriverState
));
460 d
= qemu_mallocz(sizeof(MuxDriver
));
465 chr
->chr_write
= mux_chr_write
;
466 chr
->chr_update_read_handler
= mux_chr_update_read_handler
;
467 chr
->chr_accept_input
= mux_chr_accept_input
;
473 int send_all(int fd
, const void *buf
, int len1
)
479 ret
= send(fd
, buf
, len
, 0);
481 errno
= WSAGetLastError();
482 if (errno
!= WSAEWOULDBLOCK
) {
485 } else if (ret
== 0) {
497 static int unix_write(int fd
, const uint8_t *buf
, int len1
)
503 ret
= write(fd
, buf
, len
);
505 if (errno
!= EINTR
&& errno
!= EAGAIN
)
507 } else if (ret
== 0) {
517 int send_all(int fd
, const void *buf
, int len1
)
519 return unix_write(fd
, buf
, len1
);
530 #define STDIO_MAX_CLIENTS 1
531 static int stdio_nb_clients
= 0;
533 static int fd_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
535 FDCharDriver
*s
= chr
->opaque
;
536 return send_all(s
->fd_out
, buf
, len
);
539 static int fd_chr_read_poll(void *opaque
)
541 CharDriverState
*chr
= opaque
;
542 FDCharDriver
*s
= chr
->opaque
;
544 s
->max_size
= qemu_chr_can_read(chr
);
548 static void fd_chr_read(void *opaque
)
550 CharDriverState
*chr
= opaque
;
551 FDCharDriver
*s
= chr
->opaque
;
553 uint8_t buf
[READ_BUF_LEN
];
556 if (len
> s
->max_size
)
560 size
= read(s
->fd_in
, buf
, len
);
562 /* FD has been closed. Remove it from the active list. */
563 qemu_set_fd_handler2(s
->fd_in
, NULL
, NULL
, NULL
, NULL
);
564 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
568 qemu_chr_read(chr
, buf
, size
);
572 static void fd_chr_update_read_handler(CharDriverState
*chr
)
574 FDCharDriver
*s
= chr
->opaque
;
577 if (display_type
== DT_NOGRAPHIC
&& s
->fd_in
== 0) {
579 qemu_set_fd_handler2(s
->fd_in
, fd_chr_read_poll
,
580 fd_chr_read
, NULL
, chr
);
585 static void fd_chr_close(struct 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
, NULL
, NULL
, NULL
, NULL
);
597 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
600 /* open a character device to a unix fd */
601 static CharDriverState
*qemu_chr_open_fd(int fd_in
, int fd_out
)
603 CharDriverState
*chr
;
606 chr
= qemu_mallocz(sizeof(CharDriverState
));
607 s
= qemu_mallocz(sizeof(FDCharDriver
));
611 chr
->chr_write
= fd_chr_write
;
612 chr
->chr_update_read_handler
= fd_chr_update_read_handler
;
613 chr
->chr_close
= fd_chr_close
;
615 qemu_chr_generic_open(chr
);
620 static CharDriverState
*qemu_chr_open_file_out(QemuOpts
*opts
)
624 TFR(fd_out
= qemu_open(qemu_opt_get(opts
, "path"),
625 O_WRONLY
| O_TRUNC
| O_CREAT
| O_BINARY
, 0666));
628 return qemu_chr_open_fd(-1, fd_out
);
631 static CharDriverState
*qemu_chr_open_pipe(QemuOpts
*opts
)
634 char filename_in
[256], filename_out
[256];
635 const char *filename
= qemu_opt_get(opts
, "path");
637 if (filename
== NULL
) {
638 fprintf(stderr
, "chardev: pipe: no filename given\n");
642 snprintf(filename_in
, 256, "%s.in", filename
);
643 snprintf(filename_out
, 256, "%s.out", filename
);
644 TFR(fd_in
= qemu_open(filename_in
, O_RDWR
| O_BINARY
));
645 TFR(fd_out
= qemu_open(filename_out
, O_RDWR
| O_BINARY
));
646 if (fd_in
< 0 || fd_out
< 0) {
651 TFR(fd_in
= fd_out
= open(filename
, O_RDWR
| O_BINARY
));
655 return qemu_chr_open_fd(fd_in
, fd_out
);
659 /* for STDIO, we handle the case where several clients use it
662 #define TERM_FIFO_MAX_SIZE 1
664 static uint8_t term_fifo
[TERM_FIFO_MAX_SIZE
];
665 static int term_fifo_size
;
667 static int stdio_read_poll(void *opaque
)
669 CharDriverState
*chr
= opaque
;
671 /* try to flush the queue if needed */
672 if (term_fifo_size
!= 0 && qemu_chr_can_read(chr
) > 0) {
673 qemu_chr_read(chr
, term_fifo
, 1);
676 /* see if we can absorb more chars */
677 if (term_fifo_size
== 0)
683 static void stdio_read(void *opaque
)
687 CharDriverState
*chr
= opaque
;
689 size
= read(0, buf
, 1);
691 /* stdin has been closed. Remove it from the active list. */
692 qemu_set_fd_handler2(0, NULL
, NULL
, NULL
, NULL
);
693 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
697 if (qemu_chr_can_read(chr
) > 0) {
698 qemu_chr_read(chr
, buf
, 1);
699 } else if (term_fifo_size
== 0) {
700 term_fifo
[term_fifo_size
++] = buf
[0];
705 /* init terminal so that we can grab keys */
706 static struct termios oldtty
;
707 static int old_fd0_flags
;
708 static int term_atexit_done
;
710 static void term_exit(void)
712 tcsetattr (0, TCSANOW
, &oldtty
);
713 fcntl(0, F_SETFL
, old_fd0_flags
);
716 static void term_exit_notifier(Notifier
*notifier
)
721 static void term_init(QemuOpts
*opts
)
724 static Notifier exit_notifier
= { .notify
= term_exit_notifier
};
728 old_fd0_flags
= fcntl(0, F_GETFL
);
730 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
731 |INLCR
|IGNCR
|ICRNL
|IXON
);
732 tty
.c_oflag
|= OPOST
;
733 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
734 /* if graphical mode, we allow Ctrl-C handling */
735 if (!qemu_opt_get_bool(opts
, "signal", display_type
!= DT_NOGRAPHIC
))
736 tty
.c_lflag
&= ~ISIG
;
737 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
742 tcsetattr (0, TCSANOW
, &tty
);
744 if (!term_atexit_done
++) {
745 exit_notifier_add(&exit_notifier
);
748 fcntl(0, F_SETFL
, O_NONBLOCK
);
751 static void qemu_chr_close_stdio(struct CharDriverState
*chr
)
755 qemu_set_fd_handler2(0, NULL
, NULL
, NULL
, NULL
);
759 static CharDriverState
*qemu_chr_open_stdio(QemuOpts
*opts
)
761 CharDriverState
*chr
;
763 if (stdio_nb_clients
>= STDIO_MAX_CLIENTS
)
765 chr
= qemu_chr_open_fd(0, 1);
766 chr
->chr_close
= qemu_chr_close_stdio
;
767 qemu_set_fd_handler2(0, stdio_read_poll
, stdio_read
, NULL
, chr
);
775 /* Once Solaris has openpty(), this is going to be removed. */
776 static int openpty(int *amaster
, int *aslave
, char *name
,
777 struct termios
*termp
, struct winsize
*winp
)
780 int mfd
= -1, sfd
= -1;
782 *amaster
= *aslave
= -1;
784 mfd
= open("/dev/ptmx", O_RDWR
| O_NOCTTY
);
788 if (grantpt(mfd
) == -1 || unlockpt(mfd
) == -1)
791 if ((slave
= ptsname(mfd
)) == NULL
)
794 if ((sfd
= open(slave
, O_RDONLY
| O_NOCTTY
)) == -1)
797 if (ioctl(sfd
, I_PUSH
, "ptem") == -1 ||
798 (termp
!= NULL
&& tcgetattr(sfd
, termp
) < 0))
806 ioctl(sfd
, TIOCSWINSZ
, winp
);
817 static void cfmakeraw (struct termios
*termios_p
)
819 termios_p
->c_iflag
&=
820 ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
821 termios_p
->c_oflag
&= ~OPOST
;
822 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
823 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
824 termios_p
->c_cflag
|= CS8
;
826 termios_p
->c_cc
[VMIN
] = 0;
827 termios_p
->c_cc
[VTIME
] = 0;
831 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
832 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
833 || defined(__GLIBC__)
843 static void pty_chr_update_read_handler(CharDriverState
*chr
);
844 static void pty_chr_state(CharDriverState
*chr
, int connected
);
846 static int pty_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
848 PtyCharDriver
*s
= chr
->opaque
;
851 /* guest sends data, check for (re-)connect */
852 pty_chr_update_read_handler(chr
);
855 return send_all(s
->fd
, buf
, len
);
858 static int pty_chr_read_poll(void *opaque
)
860 CharDriverState
*chr
= opaque
;
861 PtyCharDriver
*s
= chr
->opaque
;
863 s
->read_bytes
= qemu_chr_can_read(chr
);
864 return s
->read_bytes
;
867 static void pty_chr_read(void *opaque
)
869 CharDriverState
*chr
= opaque
;
870 PtyCharDriver
*s
= chr
->opaque
;
872 uint8_t buf
[READ_BUF_LEN
];
875 if (len
> s
->read_bytes
)
879 size
= read(s
->fd
, buf
, len
);
880 if ((size
== -1 && errno
== EIO
) ||
882 pty_chr_state(chr
, 0);
886 pty_chr_state(chr
, 1);
887 qemu_chr_read(chr
, buf
, size
);
891 static void pty_chr_update_read_handler(CharDriverState
*chr
)
893 PtyCharDriver
*s
= chr
->opaque
;
895 qemu_set_fd_handler2(s
->fd
, pty_chr_read_poll
,
896 pty_chr_read
, NULL
, chr
);
899 * Short timeout here: just need wait long enougth that qemu makes
900 * it through the poll loop once. When reconnected we want a
901 * short timeout so we notice it almost instantly. Otherwise
902 * read() gives us -EIO instantly, making pty_chr_state() reset the
903 * timeout to the normal (much longer) poll interval before the
906 qemu_mod_timer(s
->timer
, qemu_get_clock(rt_clock
) + 10);
909 static void pty_chr_state(CharDriverState
*chr
, int connected
)
911 PtyCharDriver
*s
= chr
->opaque
;
914 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
917 /* (re-)connect poll interval for idle guests: once per second.
918 * We check more frequently in case the guests sends data to
919 * the virtual device linked to our pty. */
920 qemu_mod_timer(s
->timer
, qemu_get_clock(rt_clock
) + 1000);
923 qemu_chr_generic_open(chr
);
928 static void pty_chr_timer(void *opaque
)
930 struct CharDriverState
*chr
= opaque
;
931 PtyCharDriver
*s
= chr
->opaque
;
936 /* If we arrive here without polling being cleared due
937 * read returning -EIO, then we are (re-)connected */
938 pty_chr_state(chr
, 1);
943 pty_chr_update_read_handler(chr
);
946 static void pty_chr_close(struct CharDriverState
*chr
)
948 PtyCharDriver
*s
= chr
->opaque
;
950 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
952 qemu_del_timer(s
->timer
);
953 qemu_free_timer(s
->timer
);
955 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
958 static CharDriverState
*qemu_chr_open_pty(QemuOpts
*opts
)
960 CharDriverState
*chr
;
964 #if defined(__OpenBSD__) || defined(__DragonFly__)
965 char pty_name
[PATH_MAX
];
966 #define q_ptsname(x) pty_name
968 char *pty_name
= NULL
;
969 #define q_ptsname(x) ptsname(x)
972 chr
= qemu_mallocz(sizeof(CharDriverState
));
973 s
= qemu_mallocz(sizeof(PtyCharDriver
));
975 if (openpty(&s
->fd
, &slave_fd
, pty_name
, NULL
, NULL
) < 0) {
979 /* Set raw attributes on the pty. */
980 tcgetattr(slave_fd
, &tty
);
982 tcsetattr(slave_fd
, TCSAFLUSH
, &tty
);
985 len
= strlen(q_ptsname(s
->fd
)) + 5;
986 chr
->filename
= qemu_malloc(len
);
987 snprintf(chr
->filename
, len
, "pty:%s", q_ptsname(s
->fd
));
988 qemu_opt_set(opts
, "path", q_ptsname(s
->fd
));
989 fprintf(stderr
, "char device redirected to %s\n", q_ptsname(s
->fd
));
992 chr
->chr_write
= pty_chr_write
;
993 chr
->chr_update_read_handler
= pty_chr_update_read_handler
;
994 chr
->chr_close
= pty_chr_close
;
996 s
->timer
= qemu_new_timer(rt_clock
, pty_chr_timer
, chr
);
1001 static void tty_serial_init(int fd
, int speed
,
1002 int parity
, int data_bits
, int stop_bits
)
1008 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1009 speed
, parity
, data_bits
, stop_bits
);
1011 tcgetattr (fd
, &tty
);
1014 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1015 speed
= speed
* 10 / 11;
1032 /* Non-Posix values follow. They may be unsupported on some systems. */
1034 check_speed(115200);
1036 check_speed(230400);
1039 check_speed(460800);
1042 check_speed(500000);
1045 check_speed(576000);
1048 check_speed(921600);
1051 check_speed(1000000);
1054 check_speed(1152000);
1057 check_speed(1500000);
1060 check_speed(2000000);
1063 check_speed(2500000);
1066 check_speed(3000000);
1069 check_speed(3500000);
1072 check_speed(4000000);
1077 cfsetispeed(&tty
, spd
);
1078 cfsetospeed(&tty
, spd
);
1080 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1081 |INLCR
|IGNCR
|ICRNL
|IXON
);
1082 tty
.c_oflag
|= OPOST
;
1083 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
|ISIG
);
1084 tty
.c_cflag
&= ~(CSIZE
|PARENB
|PARODD
|CRTSCTS
|CSTOPB
);
1105 tty
.c_cflag
|= PARENB
;
1108 tty
.c_cflag
|= PARENB
| PARODD
;
1112 tty
.c_cflag
|= CSTOPB
;
1114 tcsetattr (fd
, TCSANOW
, &tty
);
1117 static int tty_serial_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1119 FDCharDriver
*s
= chr
->opaque
;
1122 case CHR_IOCTL_SERIAL_SET_PARAMS
:
1124 QEMUSerialSetParams
*ssp
= arg
;
1125 tty_serial_init(s
->fd_in
, ssp
->speed
, ssp
->parity
,
1126 ssp
->data_bits
, ssp
->stop_bits
);
1129 case CHR_IOCTL_SERIAL_SET_BREAK
:
1131 int enable
= *(int *)arg
;
1133 tcsendbreak(s
->fd_in
, 1);
1136 case CHR_IOCTL_SERIAL_GET_TIOCM
:
1139 int *targ
= (int *)arg
;
1140 ioctl(s
->fd_in
, TIOCMGET
, &sarg
);
1142 if (sarg
& TIOCM_CTS
)
1143 *targ
|= CHR_TIOCM_CTS
;
1144 if (sarg
& TIOCM_CAR
)
1145 *targ
|= CHR_TIOCM_CAR
;
1146 if (sarg
& TIOCM_DSR
)
1147 *targ
|= CHR_TIOCM_DSR
;
1148 if (sarg
& TIOCM_RI
)
1149 *targ
|= CHR_TIOCM_RI
;
1150 if (sarg
& TIOCM_DTR
)
1151 *targ
|= CHR_TIOCM_DTR
;
1152 if (sarg
& TIOCM_RTS
)
1153 *targ
|= CHR_TIOCM_RTS
;
1156 case CHR_IOCTL_SERIAL_SET_TIOCM
:
1158 int sarg
= *(int *)arg
;
1160 ioctl(s
->fd_in
, TIOCMGET
, &targ
);
1161 targ
&= ~(CHR_TIOCM_CTS
| CHR_TIOCM_CAR
| CHR_TIOCM_DSR
1162 | CHR_TIOCM_RI
| CHR_TIOCM_DTR
| CHR_TIOCM_RTS
);
1163 if (sarg
& CHR_TIOCM_CTS
)
1165 if (sarg
& CHR_TIOCM_CAR
)
1167 if (sarg
& CHR_TIOCM_DSR
)
1169 if (sarg
& CHR_TIOCM_RI
)
1171 if (sarg
& CHR_TIOCM_DTR
)
1173 if (sarg
& CHR_TIOCM_RTS
)
1175 ioctl(s
->fd_in
, TIOCMSET
, &targ
);
1184 static void tty_exit(void)
1186 tcsetattr(0, TCSANOW
, &oldtty
);
1189 static void qemu_chr_close_tty(CharDriverState
*chr
)
1191 FDCharDriver
*s
= chr
->opaque
;
1205 static CharDriverState
*qemu_chr_open_tty(QemuOpts
*opts
)
1207 const char *filename
= qemu_opt_get(opts
, "path");
1208 CharDriverState
*chr
;
1211 TFR(fd
= open(filename
, O_RDWR
| O_NONBLOCK
));
1215 tty_serial_init(fd
, 115200, 'N', 8, 1);
1216 chr
= qemu_chr_open_fd(fd
, fd
);
1221 chr
->chr_ioctl
= tty_serial_ioctl
;
1222 chr
->chr_close
= qemu_chr_close_tty
;
1223 if (!term_atexit_done
++)
1227 #else /* ! __linux__ && ! __sun__ */
1228 static CharDriverState
*qemu_chr_open_pty(void)
1232 #endif /* __linux__ || __sun__ */
1234 #if defined(__linux__)
1238 } ParallelCharDriver
;
1240 static int pp_hw_mode(ParallelCharDriver
*s
, uint16_t mode
)
1242 if (s
->mode
!= mode
) {
1244 if (ioctl(s
->fd
, PPSETMODE
, &m
) < 0)
1251 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1253 ParallelCharDriver
*drv
= chr
->opaque
;
1258 case CHR_IOCTL_PP_READ_DATA
:
1259 if (ioctl(fd
, PPRDATA
, &b
) < 0)
1261 *(uint8_t *)arg
= b
;
1263 case CHR_IOCTL_PP_WRITE_DATA
:
1264 b
= *(uint8_t *)arg
;
1265 if (ioctl(fd
, PPWDATA
, &b
) < 0)
1268 case CHR_IOCTL_PP_READ_CONTROL
:
1269 if (ioctl(fd
, PPRCONTROL
, &b
) < 0)
1271 /* Linux gives only the lowest bits, and no way to know data
1272 direction! For better compatibility set the fixed upper
1274 *(uint8_t *)arg
= b
| 0xc0;
1276 case CHR_IOCTL_PP_WRITE_CONTROL
:
1277 b
= *(uint8_t *)arg
;
1278 if (ioctl(fd
, PPWCONTROL
, &b
) < 0)
1281 case CHR_IOCTL_PP_READ_STATUS
:
1282 if (ioctl(fd
, PPRSTATUS
, &b
) < 0)
1284 *(uint8_t *)arg
= b
;
1286 case CHR_IOCTL_PP_DATA_DIR
:
1287 if (ioctl(fd
, PPDATADIR
, (int *)arg
) < 0)
1290 case CHR_IOCTL_PP_EPP_READ_ADDR
:
1291 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1292 struct ParallelIOArg
*parg
= arg
;
1293 int n
= read(fd
, parg
->buffer
, parg
->count
);
1294 if (n
!= parg
->count
) {
1299 case CHR_IOCTL_PP_EPP_READ
:
1300 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1301 struct ParallelIOArg
*parg
= arg
;
1302 int n
= read(fd
, parg
->buffer
, parg
->count
);
1303 if (n
!= parg
->count
) {
1308 case CHR_IOCTL_PP_EPP_WRITE_ADDR
:
1309 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1310 struct ParallelIOArg
*parg
= arg
;
1311 int n
= write(fd
, parg
->buffer
, parg
->count
);
1312 if (n
!= parg
->count
) {
1317 case CHR_IOCTL_PP_EPP_WRITE
:
1318 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1319 struct ParallelIOArg
*parg
= arg
;
1320 int n
= write(fd
, parg
->buffer
, parg
->count
);
1321 if (n
!= parg
->count
) {
1332 static void pp_close(CharDriverState
*chr
)
1334 ParallelCharDriver
*drv
= chr
->opaque
;
1337 pp_hw_mode(drv
, IEEE1284_MODE_COMPAT
);
1338 ioctl(fd
, PPRELEASE
);
1341 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1344 static CharDriverState
*qemu_chr_open_pp(QemuOpts
*opts
)
1346 const char *filename
= qemu_opt_get(opts
, "path");
1347 CharDriverState
*chr
;
1348 ParallelCharDriver
*drv
;
1351 TFR(fd
= open(filename
, O_RDWR
));
1355 if (ioctl(fd
, PPCLAIM
) < 0) {
1360 drv
= qemu_mallocz(sizeof(ParallelCharDriver
));
1362 drv
->mode
= IEEE1284_MODE_COMPAT
;
1364 chr
= qemu_mallocz(sizeof(CharDriverState
));
1365 chr
->chr_write
= null_chr_write
;
1366 chr
->chr_ioctl
= pp_ioctl
;
1367 chr
->chr_close
= pp_close
;
1370 qemu_chr_generic_open(chr
);
1374 #endif /* __linux__ */
1376 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1377 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1379 int fd
= (int)chr
->opaque
;
1383 case CHR_IOCTL_PP_READ_DATA
:
1384 if (ioctl(fd
, PPIGDATA
, &b
) < 0)
1386 *(uint8_t *)arg
= b
;
1388 case CHR_IOCTL_PP_WRITE_DATA
:
1389 b
= *(uint8_t *)arg
;
1390 if (ioctl(fd
, PPISDATA
, &b
) < 0)
1393 case CHR_IOCTL_PP_READ_CONTROL
:
1394 if (ioctl(fd
, PPIGCTRL
, &b
) < 0)
1396 *(uint8_t *)arg
= b
;
1398 case CHR_IOCTL_PP_WRITE_CONTROL
:
1399 b
= *(uint8_t *)arg
;
1400 if (ioctl(fd
, PPISCTRL
, &b
) < 0)
1403 case CHR_IOCTL_PP_READ_STATUS
:
1404 if (ioctl(fd
, PPIGSTATUS
, &b
) < 0)
1406 *(uint8_t *)arg
= b
;
1414 static CharDriverState
*qemu_chr_open_pp(QemuOpts
*opts
)
1416 const char *filename
= qemu_opt_get(opts
, "path");
1417 CharDriverState
*chr
;
1420 fd
= open(filename
, O_RDWR
);
1424 chr
= qemu_mallocz(sizeof(CharDriverState
));
1425 chr
->opaque
= (void *)fd
;
1426 chr
->chr_write
= null_chr_write
;
1427 chr
->chr_ioctl
= pp_ioctl
;
1436 HANDLE hcom
, hrecv
, hsend
;
1437 OVERLAPPED orecv
, osend
;
1442 #define NSENDBUF 2048
1443 #define NRECVBUF 2048
1444 #define MAXCONNECT 1
1445 #define NTIMEOUT 5000
1447 static int win_chr_poll(void *opaque
);
1448 static int win_chr_pipe_poll(void *opaque
);
1450 static void win_chr_close(CharDriverState
*chr
)
1452 WinCharState
*s
= chr
->opaque
;
1455 CloseHandle(s
->hsend
);
1459 CloseHandle(s
->hrecv
);
1463 CloseHandle(s
->hcom
);
1467 qemu_del_polling_cb(win_chr_pipe_poll
, chr
);
1469 qemu_del_polling_cb(win_chr_poll
, chr
);
1471 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1474 static int win_chr_init(CharDriverState
*chr
, const char *filename
)
1476 WinCharState
*s
= chr
->opaque
;
1478 COMMTIMEOUTS cto
= { 0, 0, 0, 0, 0};
1483 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1485 fprintf(stderr
, "Failed CreateEvent\n");
1488 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1490 fprintf(stderr
, "Failed CreateEvent\n");
1494 s
->hcom
= CreateFile(filename
, GENERIC_READ
|GENERIC_WRITE
, 0, NULL
,
1495 OPEN_EXISTING
, FILE_FLAG_OVERLAPPED
, 0);
1496 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1497 fprintf(stderr
, "Failed CreateFile (%lu)\n", GetLastError());
1502 if (!SetupComm(s
->hcom
, NRECVBUF
, NSENDBUF
)) {
1503 fprintf(stderr
, "Failed SetupComm\n");
1507 ZeroMemory(&comcfg
, sizeof(COMMCONFIG
));
1508 size
= sizeof(COMMCONFIG
);
1509 GetDefaultCommConfig(filename
, &comcfg
, &size
);
1510 comcfg
.dcb
.DCBlength
= sizeof(DCB
);
1511 CommConfigDialog(filename
, NULL
, &comcfg
);
1513 if (!SetCommState(s
->hcom
, &comcfg
.dcb
)) {
1514 fprintf(stderr
, "Failed SetCommState\n");
1518 if (!SetCommMask(s
->hcom
, EV_ERR
)) {
1519 fprintf(stderr
, "Failed SetCommMask\n");
1523 cto
.ReadIntervalTimeout
= MAXDWORD
;
1524 if (!SetCommTimeouts(s
->hcom
, &cto
)) {
1525 fprintf(stderr
, "Failed SetCommTimeouts\n");
1529 if (!ClearCommError(s
->hcom
, &err
, &comstat
)) {
1530 fprintf(stderr
, "Failed ClearCommError\n");
1533 qemu_add_polling_cb(win_chr_poll
, chr
);
1541 static int win_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len1
)
1543 WinCharState
*s
= chr
->opaque
;
1544 DWORD len
, ret
, size
, err
;
1547 ZeroMemory(&s
->osend
, sizeof(s
->osend
));
1548 s
->osend
.hEvent
= s
->hsend
;
1551 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, &s
->osend
);
1553 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, NULL
);
1555 err
= GetLastError();
1556 if (err
== ERROR_IO_PENDING
) {
1557 ret
= GetOverlappedResult(s
->hcom
, &s
->osend
, &size
, TRUE
);
1575 static int win_chr_read_poll(CharDriverState
*chr
)
1577 WinCharState
*s
= chr
->opaque
;
1579 s
->max_size
= qemu_chr_can_read(chr
);
1583 static void win_chr_readfile(CharDriverState
*chr
)
1585 WinCharState
*s
= chr
->opaque
;
1587 uint8_t buf
[READ_BUF_LEN
];
1590 ZeroMemory(&s
->orecv
, sizeof(s
->orecv
));
1591 s
->orecv
.hEvent
= s
->hrecv
;
1592 ret
= ReadFile(s
->hcom
, buf
, s
->len
, &size
, &s
->orecv
);
1594 err
= GetLastError();
1595 if (err
== ERROR_IO_PENDING
) {
1596 ret
= GetOverlappedResult(s
->hcom
, &s
->orecv
, &size
, TRUE
);
1601 qemu_chr_read(chr
, buf
, size
);
1605 static void win_chr_read(CharDriverState
*chr
)
1607 WinCharState
*s
= chr
->opaque
;
1609 if (s
->len
> s
->max_size
)
1610 s
->len
= s
->max_size
;
1614 win_chr_readfile(chr
);
1617 static int win_chr_poll(void *opaque
)
1619 CharDriverState
*chr
= opaque
;
1620 WinCharState
*s
= chr
->opaque
;
1624 ClearCommError(s
->hcom
, &comerr
, &status
);
1625 if (status
.cbInQue
> 0) {
1626 s
->len
= status
.cbInQue
;
1627 win_chr_read_poll(chr
);
1634 static CharDriverState
*qemu_chr_open_win(QemuOpts
*opts
)
1636 const char *filename
= qemu_opt_get(opts
, "path");
1637 CharDriverState
*chr
;
1640 chr
= qemu_mallocz(sizeof(CharDriverState
));
1641 s
= qemu_mallocz(sizeof(WinCharState
));
1643 chr
->chr_write
= win_chr_write
;
1644 chr
->chr_close
= win_chr_close
;
1646 if (win_chr_init(chr
, filename
) < 0) {
1651 qemu_chr_generic_open(chr
);
1655 static int win_chr_pipe_poll(void *opaque
)
1657 CharDriverState
*chr
= opaque
;
1658 WinCharState
*s
= chr
->opaque
;
1661 PeekNamedPipe(s
->hcom
, NULL
, 0, NULL
, &size
, NULL
);
1664 win_chr_read_poll(chr
);
1671 static int win_chr_pipe_init(CharDriverState
*chr
, const char *filename
)
1673 WinCharState
*s
= chr
->opaque
;
1681 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1683 fprintf(stderr
, "Failed CreateEvent\n");
1686 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1688 fprintf(stderr
, "Failed CreateEvent\n");
1692 snprintf(openname
, sizeof(openname
), "\\\\.\\pipe\\%s", filename
);
1693 s
->hcom
= CreateNamedPipe(openname
, PIPE_ACCESS_DUPLEX
| FILE_FLAG_OVERLAPPED
,
1694 PIPE_TYPE_BYTE
| PIPE_READMODE_BYTE
|
1696 MAXCONNECT
, NSENDBUF
, NRECVBUF
, NTIMEOUT
, NULL
);
1697 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1698 fprintf(stderr
, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1703 ZeroMemory(&ov
, sizeof(ov
));
1704 ov
.hEvent
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1705 ret
= ConnectNamedPipe(s
->hcom
, &ov
);
1707 fprintf(stderr
, "Failed ConnectNamedPipe\n");
1711 ret
= GetOverlappedResult(s
->hcom
, &ov
, &size
, TRUE
);
1713 fprintf(stderr
, "Failed GetOverlappedResult\n");
1715 CloseHandle(ov
.hEvent
);
1722 CloseHandle(ov
.hEvent
);
1725 qemu_add_polling_cb(win_chr_pipe_poll
, chr
);
1734 static CharDriverState
*qemu_chr_open_win_pipe(QemuOpts
*opts
)
1736 const char *filename
= qemu_opt_get(opts
, "path");
1737 CharDriverState
*chr
;
1740 chr
= qemu_mallocz(sizeof(CharDriverState
));
1741 s
= qemu_mallocz(sizeof(WinCharState
));
1743 chr
->chr_write
= win_chr_write
;
1744 chr
->chr_close
= win_chr_close
;
1746 if (win_chr_pipe_init(chr
, filename
) < 0) {
1751 qemu_chr_generic_open(chr
);
1755 static CharDriverState
*qemu_chr_open_win_file(HANDLE fd_out
)
1757 CharDriverState
*chr
;
1760 chr
= qemu_mallocz(sizeof(CharDriverState
));
1761 s
= qemu_mallocz(sizeof(WinCharState
));
1764 chr
->chr_write
= win_chr_write
;
1765 qemu_chr_generic_open(chr
);
1769 static CharDriverState
*qemu_chr_open_win_con(QemuOpts
*opts
)
1771 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE
));
1774 static CharDriverState
*qemu_chr_open_win_file_out(QemuOpts
*opts
)
1776 const char *file_out
= qemu_opt_get(opts
, "path");
1779 fd_out
= CreateFile(file_out
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
1780 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
1781 if (fd_out
== INVALID_HANDLE_VALUE
)
1784 return qemu_chr_open_win_file(fd_out
);
1786 #endif /* !_WIN32 */
1788 /***********************************************************/
1789 /* UDP Net console */
1793 uint8_t buf
[READ_BUF_LEN
];
1799 static int udp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1801 NetCharDriver
*s
= chr
->opaque
;
1803 return send(s
->fd
, (const void *)buf
, len
, 0);
1806 static int udp_chr_read_poll(void *opaque
)
1808 CharDriverState
*chr
= opaque
;
1809 NetCharDriver
*s
= chr
->opaque
;
1811 s
->max_size
= qemu_chr_can_read(chr
);
1813 /* If there were any stray characters in the queue process them
1816 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
1817 qemu_chr_read(chr
, &s
->buf
[s
->bufptr
], 1);
1819 s
->max_size
= qemu_chr_can_read(chr
);
1824 static void udp_chr_read(void *opaque
)
1826 CharDriverState
*chr
= opaque
;
1827 NetCharDriver
*s
= chr
->opaque
;
1829 if (s
->max_size
== 0)
1831 s
->bufcnt
= recv(s
->fd
, (void *)s
->buf
, sizeof(s
->buf
), 0);
1832 s
->bufptr
= s
->bufcnt
;
1837 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
1838 qemu_chr_read(chr
, &s
->buf
[s
->bufptr
], 1);
1840 s
->max_size
= qemu_chr_can_read(chr
);
1844 static void udp_chr_update_read_handler(CharDriverState
*chr
)
1846 NetCharDriver
*s
= chr
->opaque
;
1849 qemu_set_fd_handler2(s
->fd
, udp_chr_read_poll
,
1850 udp_chr_read
, NULL
, chr
);
1854 static void udp_chr_close(CharDriverState
*chr
)
1856 NetCharDriver
*s
= chr
->opaque
;
1858 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1862 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1865 static CharDriverState
*qemu_chr_open_udp(QemuOpts
*opts
)
1867 CharDriverState
*chr
= NULL
;
1868 NetCharDriver
*s
= NULL
;
1871 chr
= qemu_mallocz(sizeof(CharDriverState
));
1872 s
= qemu_mallocz(sizeof(NetCharDriver
));
1874 fd
= inet_dgram_opts(opts
);
1876 fprintf(stderr
, "inet_dgram_opts failed\n");
1884 chr
->chr_write
= udp_chr_write
;
1885 chr
->chr_update_read_handler
= udp_chr_update_read_handler
;
1886 chr
->chr_close
= udp_chr_close
;
1899 /***********************************************************/
1900 /* TCP Net console */
1912 static void tcp_chr_accept(void *opaque
);
1914 static int tcp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1916 TCPCharDriver
*s
= chr
->opaque
;
1918 return send_all(s
->fd
, buf
, len
);
1920 /* XXX: indicate an error ? */
1925 static int tcp_chr_read_poll(void *opaque
)
1927 CharDriverState
*chr
= opaque
;
1928 TCPCharDriver
*s
= chr
->opaque
;
1931 s
->max_size
= qemu_chr_can_read(chr
);
1936 #define IAC_BREAK 243
1937 static void tcp_chr_process_IAC_bytes(CharDriverState
*chr
,
1939 uint8_t *buf
, int *size
)
1941 /* Handle any telnet client's basic IAC options to satisfy char by
1942 * char mode with no echo. All IAC options will be removed from
1943 * the buf and the do_telnetopt variable will be used to track the
1944 * state of the width of the IAC information.
1946 * IAC commands come in sets of 3 bytes with the exception of the
1947 * "IAC BREAK" command and the double IAC.
1953 for (i
= 0; i
< *size
; i
++) {
1954 if (s
->do_telnetopt
> 1) {
1955 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
1956 /* Double IAC means send an IAC */
1960 s
->do_telnetopt
= 1;
1962 if ((unsigned char)buf
[i
] == IAC_BREAK
&& s
->do_telnetopt
== 2) {
1963 /* Handle IAC break commands by sending a serial break */
1964 qemu_chr_event(chr
, CHR_EVENT_BREAK
);
1969 if (s
->do_telnetopt
>= 4) {
1970 s
->do_telnetopt
= 1;
1973 if ((unsigned char)buf
[i
] == IAC
) {
1974 s
->do_telnetopt
= 2;
1985 static int tcp_get_msgfd(CharDriverState
*chr
)
1987 TCPCharDriver
*s
= chr
->opaque
;
1993 static void unix_process_msgfd(CharDriverState
*chr
, struct msghdr
*msg
)
1995 TCPCharDriver
*s
= chr
->opaque
;
1996 struct cmsghdr
*cmsg
;
1998 for (cmsg
= CMSG_FIRSTHDR(msg
); cmsg
; cmsg
= CMSG_NXTHDR(msg
, cmsg
)) {
2001 if (cmsg
->cmsg_len
!= CMSG_LEN(sizeof(int)) ||
2002 cmsg
->cmsg_level
!= SOL_SOCKET
||
2003 cmsg
->cmsg_type
!= SCM_RIGHTS
)
2006 fd
= *((int *)CMSG_DATA(cmsg
));
2016 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2018 TCPCharDriver
*s
= chr
->opaque
;
2019 struct msghdr msg
= { NULL
, };
2020 struct iovec iov
[1];
2022 struct cmsghdr cmsg
;
2023 char control
[CMSG_SPACE(sizeof(int))];
2027 iov
[0].iov_base
= buf
;
2028 iov
[0].iov_len
= len
;
2032 msg
.msg_control
= &msg_control
;
2033 msg
.msg_controllen
= sizeof(msg_control
);
2035 ret
= recvmsg(s
->fd
, &msg
, 0);
2036 if (ret
> 0 && s
->is_unix
)
2037 unix_process_msgfd(chr
, &msg
);
2042 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2044 TCPCharDriver
*s
= chr
->opaque
;
2045 return recv(s
->fd
, buf
, len
, 0);
2049 static void tcp_chr_read(void *opaque
)
2051 CharDriverState
*chr
= opaque
;
2052 TCPCharDriver
*s
= chr
->opaque
;
2053 uint8_t buf
[READ_BUF_LEN
];
2056 if (!s
->connected
|| s
->max_size
<= 0)
2059 if (len
> s
->max_size
)
2061 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
2063 /* connection closed */
2065 if (s
->listen_fd
>= 0) {
2066 qemu_set_fd_handler(s
->listen_fd
, tcp_chr_accept
, NULL
, chr
);
2068 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
2071 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
2072 } else if (size
> 0) {
2073 if (s
->do_telnetopt
)
2074 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
2076 qemu_chr_read(chr
, buf
, size
);
2077 if (s
->msgfd
!= -1) {
2084 static void tcp_chr_connect(void *opaque
)
2086 CharDriverState
*chr
= opaque
;
2087 TCPCharDriver
*s
= chr
->opaque
;
2090 qemu_set_fd_handler2(s
->fd
, tcp_chr_read_poll
,
2091 tcp_chr_read
, NULL
, chr
);
2092 qemu_chr_generic_open(chr
);
2095 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2096 static void tcp_chr_telnet_init(int fd
)
2099 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2100 IACSET(buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2101 send(fd
, (char *)buf
, 3, 0);
2102 IACSET(buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2103 send(fd
, (char *)buf
, 3, 0);
2104 IACSET(buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2105 send(fd
, (char *)buf
, 3, 0);
2106 IACSET(buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2107 send(fd
, (char *)buf
, 3, 0);
2110 static void socket_set_nodelay(int fd
)
2113 setsockopt(fd
, IPPROTO_TCP
, TCP_NODELAY
, (char *)&val
, sizeof(val
));
2116 static void tcp_chr_accept(void *opaque
)
2118 CharDriverState
*chr
= opaque
;
2119 TCPCharDriver
*s
= chr
->opaque
;
2120 struct sockaddr_in saddr
;
2122 struct sockaddr_un uaddr
;
2124 struct sockaddr
*addr
;
2131 len
= sizeof(uaddr
);
2132 addr
= (struct sockaddr
*)&uaddr
;
2136 len
= sizeof(saddr
);
2137 addr
= (struct sockaddr
*)&saddr
;
2139 fd
= qemu_accept(s
->listen_fd
, addr
, &len
);
2140 if (fd
< 0 && errno
!= EINTR
) {
2142 } else if (fd
>= 0) {
2143 if (s
->do_telnetopt
)
2144 tcp_chr_telnet_init(fd
);
2148 socket_set_nonblock(fd
);
2150 socket_set_nodelay(fd
);
2152 qemu_set_fd_handler(s
->listen_fd
, NULL
, NULL
, NULL
);
2153 tcp_chr_connect(chr
);
2156 static void tcp_chr_close(CharDriverState
*chr
)
2158 TCPCharDriver
*s
= chr
->opaque
;
2160 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
2163 if (s
->listen_fd
>= 0) {
2164 qemu_set_fd_handler(s
->listen_fd
, NULL
, NULL
, NULL
);
2165 closesocket(s
->listen_fd
);
2168 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
2171 static CharDriverState
*qemu_chr_open_socket(QemuOpts
*opts
)
2173 CharDriverState
*chr
= NULL
;
2174 TCPCharDriver
*s
= NULL
;
2182 is_listen
= qemu_opt_get_bool(opts
, "server", 0);
2183 is_waitconnect
= qemu_opt_get_bool(opts
, "wait", 1);
2184 is_telnet
= qemu_opt_get_bool(opts
, "telnet", 0);
2185 do_nodelay
= !qemu_opt_get_bool(opts
, "delay", 1);
2186 is_unix
= qemu_opt_get(opts
, "path") != NULL
;
2190 chr
= qemu_mallocz(sizeof(CharDriverState
));
2191 s
= qemu_mallocz(sizeof(TCPCharDriver
));
2195 fd
= unix_listen_opts(opts
);
2197 fd
= unix_connect_opts(opts
);
2201 fd
= inet_listen_opts(opts
, 0);
2203 fd
= inet_connect_opts(opts
);
2209 if (!is_waitconnect
)
2210 socket_set_nonblock(fd
);
2216 s
->is_unix
= is_unix
;
2217 s
->do_nodelay
= do_nodelay
&& !is_unix
;
2220 chr
->chr_write
= tcp_chr_write
;
2221 chr
->chr_close
= tcp_chr_close
;
2222 chr
->get_msgfd
= tcp_get_msgfd
;
2226 qemu_set_fd_handler(s
->listen_fd
, tcp_chr_accept
, NULL
, chr
);
2228 s
->do_telnetopt
= 1;
2233 socket_set_nodelay(fd
);
2234 tcp_chr_connect(chr
);
2237 /* for "info chardev" monitor command */
2238 chr
->filename
= qemu_malloc(256);
2240 snprintf(chr
->filename
, 256, "unix:%s%s",
2241 qemu_opt_get(opts
, "path"),
2242 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2243 } else if (is_telnet
) {
2244 snprintf(chr
->filename
, 256, "telnet:%s:%s%s",
2245 qemu_opt_get(opts
, "host"), qemu_opt_get(opts
, "port"),
2246 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2248 snprintf(chr
->filename
, 256, "tcp:%s:%s%s",
2249 qemu_opt_get(opts
, "host"), qemu_opt_get(opts
, "port"),
2250 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2253 if (is_listen
&& is_waitconnect
) {
2254 printf("QEMU waiting for connection on: %s\n",
2256 tcp_chr_accept(chr
);
2257 socket_set_nonblock(s
->listen_fd
);
2269 QemuOpts
*qemu_chr_parse_compat(const char *label
, const char *filename
)
2271 char host
[65], port
[33], width
[8], height
[8];
2276 opts
= qemu_opts_create(&qemu_chardev_opts
, label
, 1);
2280 if (strstart(filename
, "mon:", &p
)) {
2282 qemu_opt_set(opts
, "mux", "on");
2285 if (strcmp(filename
, "null") == 0 ||
2286 strcmp(filename
, "pty") == 0 ||
2287 strcmp(filename
, "msmouse") == 0 ||
2288 strcmp(filename
, "braille") == 0 ||
2289 strcmp(filename
, "stdio") == 0) {
2290 qemu_opt_set(opts
, "backend", filename
);
2293 if (strstart(filename
, "vc", &p
)) {
2294 qemu_opt_set(opts
, "backend", "vc");
2296 if (sscanf(p
+1, "%8[0-9]x%8[0-9]", width
, height
) == 2) {
2298 qemu_opt_set(opts
, "width", width
);
2299 qemu_opt_set(opts
, "height", height
);
2300 } else if (sscanf(p
+1, "%8[0-9]Cx%8[0-9]C", width
, height
) == 2) {
2302 qemu_opt_set(opts
, "cols", width
);
2303 qemu_opt_set(opts
, "rows", height
);
2310 if (strcmp(filename
, "con:") == 0) {
2311 qemu_opt_set(opts
, "backend", "console");
2314 if (strstart(filename
, "COM", NULL
)) {
2315 qemu_opt_set(opts
, "backend", "serial");
2316 qemu_opt_set(opts
, "path", filename
);
2319 if (strstart(filename
, "file:", &p
)) {
2320 qemu_opt_set(opts
, "backend", "file");
2321 qemu_opt_set(opts
, "path", p
);
2324 if (strstart(filename
, "pipe:", &p
)) {
2325 qemu_opt_set(opts
, "backend", "pipe");
2326 qemu_opt_set(opts
, "path", p
);
2329 if (strstart(filename
, "tcp:", &p
) ||
2330 strstart(filename
, "telnet:", &p
)) {
2331 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2333 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1)
2336 qemu_opt_set(opts
, "backend", "socket");
2337 qemu_opt_set(opts
, "host", host
);
2338 qemu_opt_set(opts
, "port", port
);
2339 if (p
[pos
] == ',') {
2340 if (qemu_opts_do_parse(opts
, p
+pos
+1, NULL
) != 0)
2343 if (strstart(filename
, "telnet:", &p
))
2344 qemu_opt_set(opts
, "telnet", "on");
2347 if (strstart(filename
, "udp:", &p
)) {
2348 qemu_opt_set(opts
, "backend", "udp");
2349 if (sscanf(p
, "%64[^:]:%32[^@,]%n", host
, port
, &pos
) < 2) {
2351 if (sscanf(p
, ":%32[^@,]%n", port
, &pos
) < 1) {
2355 qemu_opt_set(opts
, "host", host
);
2356 qemu_opt_set(opts
, "port", port
);
2357 if (p
[pos
] == '@') {
2359 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2361 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
2365 qemu_opt_set(opts
, "localaddr", host
);
2366 qemu_opt_set(opts
, "localport", port
);
2370 if (strstart(filename
, "unix:", &p
)) {
2371 qemu_opt_set(opts
, "backend", "socket");
2372 if (qemu_opts_do_parse(opts
, p
, "path") != 0)
2376 if (strstart(filename
, "/dev/parport", NULL
) ||
2377 strstart(filename
, "/dev/ppi", NULL
)) {
2378 qemu_opt_set(opts
, "backend", "parport");
2379 qemu_opt_set(opts
, "path", filename
);
2382 if (strstart(filename
, "/dev/", NULL
)) {
2383 qemu_opt_set(opts
, "backend", "tty");
2384 qemu_opt_set(opts
, "path", filename
);
2389 qemu_opts_del(opts
);
2393 static const struct {
2395 CharDriverState
*(*open
)(QemuOpts
*opts
);
2396 } backend_table
[] = {
2397 { .name
= "null", .open
= qemu_chr_open_null
},
2398 { .name
= "socket", .open
= qemu_chr_open_socket
},
2399 { .name
= "udp", .open
= qemu_chr_open_udp
},
2400 { .name
= "msmouse", .open
= qemu_chr_open_msmouse
},
2401 { .name
= "vc", .open
= text_console_init
},
2403 { .name
= "file", .open
= qemu_chr_open_win_file_out
},
2404 { .name
= "pipe", .open
= qemu_chr_open_win_pipe
},
2405 { .name
= "console", .open
= qemu_chr_open_win_con
},
2406 { .name
= "serial", .open
= qemu_chr_open_win
},
2408 { .name
= "file", .open
= qemu_chr_open_file_out
},
2409 { .name
= "pipe", .open
= qemu_chr_open_pipe
},
2410 { .name
= "pty", .open
= qemu_chr_open_pty
},
2411 { .name
= "stdio", .open
= qemu_chr_open_stdio
},
2413 #ifdef CONFIG_BRLAPI
2414 { .name
= "braille", .open
= chr_baum_init
},
2416 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2417 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2418 || defined(__FreeBSD_kernel__)
2419 { .name
= "tty", .open
= qemu_chr_open_tty
},
2421 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2422 || defined(__FreeBSD_kernel__)
2423 { .name
= "parport", .open
= qemu_chr_open_pp
},
2427 CharDriverState
*qemu_chr_open_opts(QemuOpts
*opts
,
2428 void (*init
)(struct CharDriverState
*s
))
2430 CharDriverState
*chr
;
2433 if (qemu_opts_id(opts
) == NULL
) {
2434 fprintf(stderr
, "chardev: no id specified\n");
2438 for (i
= 0; i
< ARRAY_SIZE(backend_table
); i
++) {
2439 if (strcmp(backend_table
[i
].name
, qemu_opt_get(opts
, "backend")) == 0)
2442 if (i
== ARRAY_SIZE(backend_table
)) {
2443 fprintf(stderr
, "chardev: backend \"%s\" not found\n",
2444 qemu_opt_get(opts
, "backend"));
2448 chr
= backend_table
[i
].open(opts
);
2450 fprintf(stderr
, "chardev: opening backend \"%s\" failed\n",
2451 qemu_opt_get(opts
, "backend"));
2456 chr
->filename
= qemu_strdup(qemu_opt_get(opts
, "backend"));
2458 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
2460 if (qemu_opt_get_bool(opts
, "mux", 0)) {
2461 CharDriverState
*base
= chr
;
2462 int len
= strlen(qemu_opts_id(opts
)) + 6;
2463 base
->label
= qemu_malloc(len
);
2464 snprintf(base
->label
, len
, "%s-base", qemu_opts_id(opts
));
2465 chr
= qemu_chr_open_mux(base
);
2466 chr
->filename
= base
->filename
;
2467 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
2469 chr
->label
= qemu_strdup(qemu_opts_id(opts
));
2473 CharDriverState
*qemu_chr_open(const char *label
, const char *filename
, void (*init
)(struct CharDriverState
*s
))
2476 CharDriverState
*chr
;
2479 if (strstart(filename
, "chardev:", &p
)) {
2480 return qemu_chr_find(p
);
2483 opts
= qemu_chr_parse_compat(label
, filename
);
2487 chr
= qemu_chr_open_opts(opts
, init
);
2488 if (chr
&& qemu_opt_get_bool(opts
, "mux", 0)) {
2489 monitor_init(chr
, MONITOR_USE_READLINE
);
2494 void qemu_chr_close(CharDriverState
*chr
)
2496 QTAILQ_REMOVE(&chardevs
, chr
, next
);
2498 chr
->chr_close(chr
);
2499 qemu_free(chr
->filename
);
2500 qemu_free(chr
->label
);
2504 static void qemu_chr_qlist_iter(QObject
*obj
, void *opaque
)
2507 Monitor
*mon
= opaque
;
2509 chr_dict
= qobject_to_qdict(obj
);
2510 monitor_printf(mon
, "%s: filename=%s\n", qdict_get_str(chr_dict
, "label"),
2511 qdict_get_str(chr_dict
, "filename"));
2514 void qemu_chr_info_print(Monitor
*mon
, const QObject
*ret_data
)
2516 qlist_iter(qobject_to_qlist(ret_data
), qemu_chr_qlist_iter
, mon
);
2520 * qemu_chr_info(): Character devices information
2522 * Each device is represented by a QDict. The returned QObject is a QList
2525 * The QDict contains the following:
2527 * - "label": device's label
2528 * - "filename": device's file
2532 * [ { "label": "monitor", "filename", "stdio" },
2533 * { "label": "serial0", "filename": "vc" } ]
2535 void qemu_chr_info(Monitor
*mon
, QObject
**ret_data
)
2538 CharDriverState
*chr
;
2540 chr_list
= qlist_new();
2542 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
2543 QObject
*obj
= qobject_from_jsonf("{ 'label': %s, 'filename': %s }",
2544 chr
->label
, chr
->filename
);
2545 qlist_append_obj(chr_list
, obj
);
2548 *ret_data
= QOBJECT(chr_list
);
2551 CharDriverState
*qemu_chr_find(const char *name
)
2553 CharDriverState
*chr
;
2555 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
2556 if (strcmp(chr
->label
, name
) != 0)