4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu-common.h"
29 #include "qemu-timer.h"
30 #include "qemu-char.h"
33 #include "hw/msmouse.h"
34 #include "qemu-objects.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>
54 #include <arpa/inet.h>
57 #include <sys/select.h>
60 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
62 #include <dev/ppbus/ppi.h>
63 #include <dev/ppbus/ppbconf.h>
64 #if defined(__GLIBC__)
67 #elif defined(__DragonFly__)
69 #include <dev/misc/ppi/ppi.h>
70 #include <bus/ppbus/ppbconf.h>
78 #include <linux/ppdev.h>
79 #include <linux/parport.h>
83 #include <sys/ethernet.h>
84 #include <sys/sockio.h>
85 #include <netinet/arp.h>
86 #include <netinet/in.h>
87 #include <netinet/in_systm.h>
88 #include <netinet/ip.h>
89 #include <netinet/ip_icmp.h> // must come after ip.h
90 #include <netinet/udp.h>
91 #include <netinet/tcp.h>
99 #include "qemu_socket.h"
101 #define READ_BUF_LEN 4096
103 /***********************************************************/
104 /* character device */
106 static QTAILQ_HEAD(CharDriverStateHead
, CharDriverState
) chardevs
=
107 QTAILQ_HEAD_INITIALIZER(chardevs
);
109 static void qemu_chr_event(CharDriverState
*s
, int event
)
111 /* Keep track if the char device is open */
113 case CHR_EVENT_OPENED
:
116 case CHR_EVENT_CLOSED
:
123 s
->chr_event(s
->handler_opaque
, event
);
126 static void qemu_chr_generic_open_bh(void *opaque
)
128 CharDriverState
*s
= opaque
;
129 qemu_chr_event(s
, CHR_EVENT_OPENED
);
130 qemu_bh_delete(s
->bh
);
134 void qemu_chr_generic_open(CharDriverState
*s
)
137 s
->bh
= qemu_bh_new(qemu_chr_generic_open_bh
, s
);
138 qemu_bh_schedule(s
->bh
);
142 int qemu_chr_write(CharDriverState
*s
, const uint8_t *buf
, int len
)
144 return s
->chr_write(s
, buf
, len
);
147 int qemu_chr_ioctl(CharDriverState
*s
, int cmd
, void *arg
)
151 return s
->chr_ioctl(s
, cmd
, arg
);
154 int qemu_chr_can_read(CharDriverState
*s
)
156 if (!s
->chr_can_read
)
158 return s
->chr_can_read(s
->handler_opaque
);
161 void qemu_chr_read(CharDriverState
*s
, uint8_t *buf
, int len
)
163 s
->chr_read(s
->handler_opaque
, buf
, len
);
166 int qemu_chr_get_msgfd(CharDriverState
*s
)
168 return s
->get_msgfd
? s
->get_msgfd(s
) : -1;
171 void qemu_chr_accept_input(CharDriverState
*s
)
173 if (s
->chr_accept_input
)
174 s
->chr_accept_input(s
);
177 void qemu_chr_printf(CharDriverState
*s
, const char *fmt
, ...)
179 char buf
[READ_BUF_LEN
];
182 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
183 qemu_chr_write(s
, (uint8_t *)buf
, strlen(buf
));
187 void qemu_chr_send_event(CharDriverState
*s
, int event
)
189 if (s
->chr_send_event
)
190 s
->chr_send_event(s
, event
);
193 void qemu_chr_add_handlers(CharDriverState
*s
,
194 IOCanReadHandler
*fd_can_read
,
195 IOReadHandler
*fd_read
,
196 IOEventHandler
*fd_event
,
199 s
->chr_can_read
= fd_can_read
;
200 s
->chr_read
= fd_read
;
201 s
->chr_event
= fd_event
;
202 s
->handler_opaque
= opaque
;
203 if (s
->chr_update_read_handler
)
204 s
->chr_update_read_handler(s
);
206 /* We're connecting to an already opened device, so let's make sure we
207 also get the open event */
209 qemu_chr_generic_open(s
);
213 static int null_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
218 static CharDriverState
*qemu_chr_open_null(QemuOpts
*opts
)
220 CharDriverState
*chr
;
222 chr
= qemu_mallocz(sizeof(CharDriverState
));
223 chr
->chr_write
= null_chr_write
;
227 /* MUX driver for serial I/O splitting */
229 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
230 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
232 IOCanReadHandler
*chr_can_read
[MAX_MUX
];
233 IOReadHandler
*chr_read
[MAX_MUX
];
234 IOEventHandler
*chr_event
[MAX_MUX
];
235 void *ext_opaque
[MAX_MUX
];
236 CharDriverState
*drv
;
241 /* Intermediate input buffer allows to catch escape sequences even if the
242 currently active device is not accepting any input - but only until it
244 unsigned char buffer
[MAX_MUX
][MUX_BUFFER_SIZE
];
249 int64_t timestamps_start
;
253 static int mux_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
255 MuxDriver
*d
= chr
->opaque
;
257 if (!d
->timestamps
) {
258 ret
= d
->drv
->chr_write(d
->drv
, buf
, len
);
263 for (i
= 0; i
< len
; i
++) {
269 ti
= qemu_get_clock(rt_clock
);
270 if (d
->timestamps_start
== -1)
271 d
->timestamps_start
= ti
;
272 ti
-= d
->timestamps_start
;
274 snprintf(buf1
, sizeof(buf1
),
275 "[%02d:%02d:%02d.%03d] ",
280 d
->drv
->chr_write(d
->drv
, (uint8_t *)buf1
, strlen(buf1
));
283 ret
+= d
->drv
->chr_write(d
->drv
, buf
+i
, 1);
284 if (buf
[i
] == '\n') {
292 static const char * const mux_help
[] = {
293 "% h print this help\n\r",
294 "% x exit emulator\n\r",
295 "% s save disk data back to file (if -snapshot)\n\r",
296 "% t toggle console timestamps\n\r"
297 "% b send break (magic sysrq)\n\r",
298 "% c switch between console and monitor\n\r",
303 int term_escape_char
= 0x01; /* ctrl-a is used for escape */
304 static void mux_print_help(CharDriverState
*chr
)
307 char ebuf
[15] = "Escape-Char";
308 char cbuf
[50] = "\n\r";
310 if (term_escape_char
> 0 && term_escape_char
< 26) {
311 snprintf(cbuf
, sizeof(cbuf
), "\n\r");
312 snprintf(ebuf
, sizeof(ebuf
), "C-%c", term_escape_char
- 1 + 'a');
314 snprintf(cbuf
, sizeof(cbuf
),
315 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
318 chr
->chr_write(chr
, (uint8_t *)cbuf
, strlen(cbuf
));
319 for (i
= 0; mux_help
[i
] != NULL
; i
++) {
320 for (j
=0; mux_help
[i
][j
] != '\0'; j
++) {
321 if (mux_help
[i
][j
] == '%')
322 chr
->chr_write(chr
, (uint8_t *)ebuf
, strlen(ebuf
));
324 chr
->chr_write(chr
, (uint8_t *)&mux_help
[i
][j
], 1);
329 static void mux_chr_send_event(MuxDriver
*d
, int mux_nr
, int event
)
331 if (d
->chr_event
[mux_nr
])
332 d
->chr_event
[mux_nr
](d
->ext_opaque
[mux_nr
], event
);
335 static int mux_proc_byte(CharDriverState
*chr
, MuxDriver
*d
, int ch
)
337 if (d
->term_got_escape
) {
338 d
->term_got_escape
= 0;
339 if (ch
== term_escape_char
)
348 const char *term
= "QEMU: Terminated\n\r";
349 chr
->chr_write(chr
,(uint8_t *)term
,strlen(term
));
356 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
357 bdrv_commit(dinfo
->bdrv
);
362 qemu_chr_event(chr
, CHR_EVENT_BREAK
);
365 /* Switch to the next registered device */
366 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
368 if (d
->focus
>= d
->mux_cnt
)
370 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
373 d
->timestamps
= !d
->timestamps
;
374 d
->timestamps_start
= -1;
378 } else if (ch
== term_escape_char
) {
379 d
->term_got_escape
= 1;
387 static void mux_chr_accept_input(CharDriverState
*chr
)
389 MuxDriver
*d
= chr
->opaque
;
392 while (d
->prod
[m
] != d
->cons
[m
] &&
393 d
->chr_can_read
[m
] &&
394 d
->chr_can_read
[m
](d
->ext_opaque
[m
])) {
395 d
->chr_read
[m
](d
->ext_opaque
[m
],
396 &d
->buffer
[m
][d
->cons
[m
]++ & MUX_BUFFER_MASK
], 1);
400 static int mux_chr_can_read(void *opaque
)
402 CharDriverState
*chr
= opaque
;
403 MuxDriver
*d
= chr
->opaque
;
406 if ((d
->prod
[m
] - d
->cons
[m
]) < MUX_BUFFER_SIZE
)
408 if (d
->chr_can_read
[m
])
409 return d
->chr_can_read
[m
](d
->ext_opaque
[m
]);
413 static void mux_chr_read(void *opaque
, const uint8_t *buf
, int size
)
415 CharDriverState
*chr
= opaque
;
416 MuxDriver
*d
= chr
->opaque
;
420 mux_chr_accept_input (opaque
);
422 for(i
= 0; i
< size
; i
++)
423 if (mux_proc_byte(chr
, d
, buf
[i
])) {
424 if (d
->prod
[m
] == d
->cons
[m
] &&
425 d
->chr_can_read
[m
] &&
426 d
->chr_can_read
[m
](d
->ext_opaque
[m
]))
427 d
->chr_read
[m
](d
->ext_opaque
[m
], &buf
[i
], 1);
429 d
->buffer
[m
][d
->prod
[m
]++ & MUX_BUFFER_MASK
] = buf
[i
];
433 static void mux_chr_event(void *opaque
, int event
)
435 CharDriverState
*chr
= opaque
;
436 MuxDriver
*d
= chr
->opaque
;
439 /* Send the event to all registered listeners */
440 for (i
= 0; i
< d
->mux_cnt
; i
++)
441 mux_chr_send_event(d
, i
, event
);
444 static void mux_chr_update_read_handler(CharDriverState
*chr
)
446 MuxDriver
*d
= chr
->opaque
;
448 if (d
->mux_cnt
>= MAX_MUX
) {
449 fprintf(stderr
, "Cannot add I/O handlers, MUX array is full\n");
452 d
->ext_opaque
[d
->mux_cnt
] = chr
->handler_opaque
;
453 d
->chr_can_read
[d
->mux_cnt
] = chr
->chr_can_read
;
454 d
->chr_read
[d
->mux_cnt
] = chr
->chr_read
;
455 d
->chr_event
[d
->mux_cnt
] = chr
->chr_event
;
456 /* Fix up the real driver with mux routines */
457 if (d
->mux_cnt
== 0) {
458 qemu_chr_add_handlers(d
->drv
, mux_chr_can_read
, mux_chr_read
,
461 if (d
->focus
!= -1) {
462 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_OUT
);
464 d
->focus
= d
->mux_cnt
;
466 mux_chr_send_event(d
, d
->focus
, CHR_EVENT_MUX_IN
);
469 static CharDriverState
*qemu_chr_open_mux(CharDriverState
*drv
)
471 CharDriverState
*chr
;
474 chr
= qemu_mallocz(sizeof(CharDriverState
));
475 d
= qemu_mallocz(sizeof(MuxDriver
));
480 chr
->chr_write
= mux_chr_write
;
481 chr
->chr_update_read_handler
= mux_chr_update_read_handler
;
482 chr
->chr_accept_input
= mux_chr_accept_input
;
484 /* Muxes are always open on creation */
485 qemu_chr_generic_open(chr
);
492 int send_all(int fd
, const void *buf
, int len1
)
498 ret
= send(fd
, buf
, len
, 0);
500 errno
= WSAGetLastError();
501 if (errno
!= WSAEWOULDBLOCK
) {
504 } else if (ret
== 0) {
516 static int unix_write(int fd
, const uint8_t *buf
, int len1
)
522 ret
= write(fd
, buf
, len
);
524 if (errno
!= EINTR
&& errno
!= EAGAIN
)
526 } else if (ret
== 0) {
536 int send_all(int fd
, const void *buf
, int len1
)
538 return unix_write(fd
, buf
, len1
);
549 #define STDIO_MAX_CLIENTS 1
550 static int stdio_nb_clients
= 0;
552 static int fd_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
554 FDCharDriver
*s
= chr
->opaque
;
555 return send_all(s
->fd_out
, buf
, len
);
558 static int fd_chr_read_poll(void *opaque
)
560 CharDriverState
*chr
= opaque
;
561 FDCharDriver
*s
= chr
->opaque
;
563 s
->max_size
= qemu_chr_can_read(chr
);
567 static void fd_chr_read(void *opaque
)
569 CharDriverState
*chr
= opaque
;
570 FDCharDriver
*s
= chr
->opaque
;
572 uint8_t buf
[READ_BUF_LEN
];
575 if (len
> s
->max_size
)
579 size
= read(s
->fd_in
, buf
, len
);
581 /* FD has been closed. Remove it from the active list. */
582 qemu_set_fd_handler2(s
->fd_in
, NULL
, NULL
, NULL
, NULL
);
583 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
587 qemu_chr_read(chr
, buf
, size
);
591 static void fd_chr_update_read_handler(CharDriverState
*chr
)
593 FDCharDriver
*s
= chr
->opaque
;
596 if (display_type
== DT_NOGRAPHIC
&& s
->fd_in
== 0) {
598 qemu_set_fd_handler2(s
->fd_in
, fd_chr_read_poll
,
599 fd_chr_read
, NULL
, chr
);
604 static void fd_chr_close(struct CharDriverState
*chr
)
606 FDCharDriver
*s
= chr
->opaque
;
609 if (display_type
== DT_NOGRAPHIC
&& s
->fd_in
== 0) {
611 qemu_set_fd_handler2(s
->fd_in
, NULL
, NULL
, NULL
, NULL
);
616 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
619 /* open a character device to a unix fd */
620 static CharDriverState
*qemu_chr_open_fd(int fd_in
, int fd_out
)
622 CharDriverState
*chr
;
625 chr
= qemu_mallocz(sizeof(CharDriverState
));
626 s
= qemu_mallocz(sizeof(FDCharDriver
));
630 chr
->chr_write
= fd_chr_write
;
631 chr
->chr_update_read_handler
= fd_chr_update_read_handler
;
632 chr
->chr_close
= fd_chr_close
;
634 qemu_chr_generic_open(chr
);
639 static CharDriverState
*qemu_chr_open_file_out(QemuOpts
*opts
)
643 TFR(fd_out
= qemu_open(qemu_opt_get(opts
, "path"),
644 O_WRONLY
| O_TRUNC
| O_CREAT
| O_BINARY
, 0666));
647 return qemu_chr_open_fd(-1, fd_out
);
650 static CharDriverState
*qemu_chr_open_pipe(QemuOpts
*opts
)
653 char filename_in
[256], filename_out
[256];
654 const char *filename
= qemu_opt_get(opts
, "path");
656 if (filename
== NULL
) {
657 fprintf(stderr
, "chardev: pipe: no filename given\n");
661 snprintf(filename_in
, 256, "%s.in", filename
);
662 snprintf(filename_out
, 256, "%s.out", filename
);
663 TFR(fd_in
= qemu_open(filename_in
, O_RDWR
| O_BINARY
));
664 TFR(fd_out
= qemu_open(filename_out
, O_RDWR
| O_BINARY
));
665 if (fd_in
< 0 || fd_out
< 0) {
670 TFR(fd_in
= fd_out
= open(filename
, O_RDWR
| O_BINARY
));
674 return qemu_chr_open_fd(fd_in
, fd_out
);
678 /* for STDIO, we handle the case where several clients use it
681 #define TERM_FIFO_MAX_SIZE 1
683 static uint8_t term_fifo
[TERM_FIFO_MAX_SIZE
];
684 static int term_fifo_size
;
686 static int stdio_read_poll(void *opaque
)
688 CharDriverState
*chr
= opaque
;
690 /* try to flush the queue if needed */
691 if (term_fifo_size
!= 0 && qemu_chr_can_read(chr
) > 0) {
692 qemu_chr_read(chr
, term_fifo
, 1);
695 /* see if we can absorb more chars */
696 if (term_fifo_size
== 0)
702 static void stdio_read(void *opaque
)
706 CharDriverState
*chr
= opaque
;
708 size
= read(0, buf
, 1);
710 /* stdin has been closed. Remove it from the active list. */
711 qemu_set_fd_handler2(0, NULL
, NULL
, NULL
, NULL
);
712 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
716 if (qemu_chr_can_read(chr
) > 0) {
717 qemu_chr_read(chr
, buf
, 1);
718 } else if (term_fifo_size
== 0) {
719 term_fifo
[term_fifo_size
++] = buf
[0];
724 /* init terminal so that we can grab keys */
725 static struct termios oldtty
;
726 static int old_fd0_flags
;
727 static int term_atexit_done
;
729 static void term_exit(void)
731 tcsetattr (0, TCSANOW
, &oldtty
);
732 fcntl(0, F_SETFL
, old_fd0_flags
);
735 static void term_init(QemuOpts
*opts
)
741 old_fd0_flags
= fcntl(0, F_GETFL
);
743 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
744 |INLCR
|IGNCR
|ICRNL
|IXON
);
745 tty
.c_oflag
|= OPOST
;
746 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
747 /* if graphical mode, we allow Ctrl-C handling */
748 if (!qemu_opt_get_bool(opts
, "signal", display_type
!= DT_NOGRAPHIC
))
749 tty
.c_lflag
&= ~ISIG
;
750 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
755 tcsetattr (0, TCSANOW
, &tty
);
757 if (!term_atexit_done
++)
760 fcntl(0, F_SETFL
, O_NONBLOCK
);
763 static void qemu_chr_close_stdio(struct CharDriverState
*chr
)
767 qemu_set_fd_handler2(0, NULL
, NULL
, NULL
, NULL
);
771 static CharDriverState
*qemu_chr_open_stdio(QemuOpts
*opts
)
773 CharDriverState
*chr
;
775 if (stdio_nb_clients
>= STDIO_MAX_CLIENTS
)
777 chr
= qemu_chr_open_fd(0, 1);
778 chr
->chr_close
= qemu_chr_close_stdio
;
779 qemu_set_fd_handler2(0, stdio_read_poll
, stdio_read
, NULL
, chr
);
787 /* Once Solaris has openpty(), this is going to be removed. */
788 static int openpty(int *amaster
, int *aslave
, char *name
,
789 struct termios
*termp
, struct winsize
*winp
)
792 int mfd
= -1, sfd
= -1;
794 *amaster
= *aslave
= -1;
796 mfd
= open("/dev/ptmx", O_RDWR
| O_NOCTTY
);
800 if (grantpt(mfd
) == -1 || unlockpt(mfd
) == -1)
803 if ((slave
= ptsname(mfd
)) == NULL
)
806 if ((sfd
= open(slave
, O_RDONLY
| O_NOCTTY
)) == -1)
809 if (ioctl(sfd
, I_PUSH
, "ptem") == -1 ||
810 (termp
!= NULL
&& tcgetattr(sfd
, termp
) < 0))
818 ioctl(sfd
, TIOCSWINSZ
, winp
);
829 static void cfmakeraw (struct termios
*termios_p
)
831 termios_p
->c_iflag
&=
832 ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
833 termios_p
->c_oflag
&= ~OPOST
;
834 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
835 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
836 termios_p
->c_cflag
|= CS8
;
838 termios_p
->c_cc
[VMIN
] = 0;
839 termios_p
->c_cc
[VTIME
] = 0;
843 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
844 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
845 || defined(__GLIBC__)
855 static void pty_chr_update_read_handler(CharDriverState
*chr
);
856 static void pty_chr_state(CharDriverState
*chr
, int connected
);
858 static int pty_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
860 PtyCharDriver
*s
= chr
->opaque
;
863 /* guest sends data, check for (re-)connect */
864 pty_chr_update_read_handler(chr
);
867 return send_all(s
->fd
, buf
, len
);
870 static int pty_chr_read_poll(void *opaque
)
872 CharDriverState
*chr
= opaque
;
873 PtyCharDriver
*s
= chr
->opaque
;
875 s
->read_bytes
= qemu_chr_can_read(chr
);
876 return s
->read_bytes
;
879 static void pty_chr_read(void *opaque
)
881 CharDriverState
*chr
= opaque
;
882 PtyCharDriver
*s
= chr
->opaque
;
884 uint8_t buf
[READ_BUF_LEN
];
887 if (len
> s
->read_bytes
)
891 size
= read(s
->fd
, buf
, len
);
892 if ((size
== -1 && errno
== EIO
) ||
894 pty_chr_state(chr
, 0);
898 pty_chr_state(chr
, 1);
899 qemu_chr_read(chr
, buf
, size
);
903 static void pty_chr_update_read_handler(CharDriverState
*chr
)
905 PtyCharDriver
*s
= chr
->opaque
;
907 qemu_set_fd_handler2(s
->fd
, pty_chr_read_poll
,
908 pty_chr_read
, NULL
, chr
);
911 * Short timeout here: just need wait long enougth that qemu makes
912 * it through the poll loop once. When reconnected we want a
913 * short timeout so we notice it almost instantly. Otherwise
914 * read() gives us -EIO instantly, making pty_chr_state() reset the
915 * timeout to the normal (much longer) poll interval before the
918 qemu_mod_timer(s
->timer
, qemu_get_clock(rt_clock
) + 10);
921 static void pty_chr_state(CharDriverState
*chr
, int connected
)
923 PtyCharDriver
*s
= chr
->opaque
;
926 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
929 /* (re-)connect poll interval for idle guests: once per second.
930 * We check more frequently in case the guests sends data to
931 * the virtual device linked to our pty. */
932 qemu_mod_timer(s
->timer
, qemu_get_clock(rt_clock
) + 1000);
935 qemu_chr_generic_open(chr
);
940 static void pty_chr_timer(void *opaque
)
942 struct CharDriverState
*chr
= opaque
;
943 PtyCharDriver
*s
= chr
->opaque
;
948 /* If we arrive here without polling being cleared due
949 * read returning -EIO, then we are (re-)connected */
950 pty_chr_state(chr
, 1);
955 pty_chr_update_read_handler(chr
);
958 static void pty_chr_close(struct CharDriverState
*chr
)
960 PtyCharDriver
*s
= chr
->opaque
;
962 qemu_set_fd_handler2(s
->fd
, NULL
, NULL
, NULL
, NULL
);
964 qemu_del_timer(s
->timer
);
965 qemu_free_timer(s
->timer
);
967 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
970 static CharDriverState
*qemu_chr_open_pty(QemuOpts
*opts
)
972 CharDriverState
*chr
;
976 #if defined(__OpenBSD__) || defined(__DragonFly__)
977 char pty_name
[PATH_MAX
];
978 #define q_ptsname(x) pty_name
980 char *pty_name
= NULL
;
981 #define q_ptsname(x) ptsname(x)
984 chr
= qemu_mallocz(sizeof(CharDriverState
));
985 s
= qemu_mallocz(sizeof(PtyCharDriver
));
987 if (openpty(&s
->fd
, &slave_fd
, pty_name
, NULL
, NULL
) < 0) {
991 /* Set raw attributes on the pty. */
992 tcgetattr(slave_fd
, &tty
);
994 tcsetattr(slave_fd
, TCSAFLUSH
, &tty
);
997 len
= strlen(q_ptsname(s
->fd
)) + 5;
998 chr
->filename
= qemu_malloc(len
);
999 snprintf(chr
->filename
, len
, "pty:%s", q_ptsname(s
->fd
));
1000 qemu_opt_set(opts
, "path", q_ptsname(s
->fd
));
1001 fprintf(stderr
, "char device redirected to %s\n", q_ptsname(s
->fd
));
1004 chr
->chr_write
= pty_chr_write
;
1005 chr
->chr_update_read_handler
= pty_chr_update_read_handler
;
1006 chr
->chr_close
= pty_chr_close
;
1008 s
->timer
= qemu_new_timer(rt_clock
, pty_chr_timer
, chr
);
1013 static void tty_serial_init(int fd
, int speed
,
1014 int parity
, int data_bits
, int stop_bits
)
1020 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1021 speed
, parity
, data_bits
, stop_bits
);
1023 tcgetattr (fd
, &tty
);
1024 if (!term_atexit_done
) {
1028 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1029 speed
= speed
* 10 / 11;
1046 /* Non-Posix values follow. They may be unsupported on some systems. */
1048 check_speed(115200);
1050 check_speed(230400);
1053 check_speed(460800);
1056 check_speed(500000);
1059 check_speed(576000);
1062 check_speed(921600);
1065 check_speed(1000000);
1068 check_speed(1152000);
1071 check_speed(1500000);
1074 check_speed(2000000);
1077 check_speed(2500000);
1080 check_speed(3000000);
1083 check_speed(3500000);
1086 check_speed(4000000);
1091 cfsetispeed(&tty
, spd
);
1092 cfsetospeed(&tty
, spd
);
1094 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1095 |INLCR
|IGNCR
|ICRNL
|IXON
);
1096 tty
.c_oflag
|= OPOST
;
1097 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
|ISIG
);
1098 tty
.c_cflag
&= ~(CSIZE
|PARENB
|PARODD
|CRTSCTS
|CSTOPB
);
1119 tty
.c_cflag
|= PARENB
;
1122 tty
.c_cflag
|= PARENB
| PARODD
;
1126 tty
.c_cflag
|= CSTOPB
;
1128 tcsetattr (fd
, TCSANOW
, &tty
);
1131 static int tty_serial_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1133 FDCharDriver
*s
= chr
->opaque
;
1136 case CHR_IOCTL_SERIAL_SET_PARAMS
:
1138 QEMUSerialSetParams
*ssp
= arg
;
1139 tty_serial_init(s
->fd_in
, ssp
->speed
, ssp
->parity
,
1140 ssp
->data_bits
, ssp
->stop_bits
);
1143 case CHR_IOCTL_SERIAL_SET_BREAK
:
1145 int enable
= *(int *)arg
;
1147 tcsendbreak(s
->fd_in
, 1);
1150 case CHR_IOCTL_SERIAL_GET_TIOCM
:
1153 int *targ
= (int *)arg
;
1154 ioctl(s
->fd_in
, TIOCMGET
, &sarg
);
1156 if (sarg
& TIOCM_CTS
)
1157 *targ
|= CHR_TIOCM_CTS
;
1158 if (sarg
& TIOCM_CAR
)
1159 *targ
|= CHR_TIOCM_CAR
;
1160 if (sarg
& TIOCM_DSR
)
1161 *targ
|= CHR_TIOCM_DSR
;
1162 if (sarg
& TIOCM_RI
)
1163 *targ
|= CHR_TIOCM_RI
;
1164 if (sarg
& TIOCM_DTR
)
1165 *targ
|= CHR_TIOCM_DTR
;
1166 if (sarg
& TIOCM_RTS
)
1167 *targ
|= CHR_TIOCM_RTS
;
1170 case CHR_IOCTL_SERIAL_SET_TIOCM
:
1172 int sarg
= *(int *)arg
;
1174 ioctl(s
->fd_in
, TIOCMGET
, &targ
);
1175 targ
&= ~(CHR_TIOCM_CTS
| CHR_TIOCM_CAR
| CHR_TIOCM_DSR
1176 | CHR_TIOCM_RI
| CHR_TIOCM_DTR
| CHR_TIOCM_RTS
);
1177 if (sarg
& CHR_TIOCM_CTS
)
1179 if (sarg
& CHR_TIOCM_CAR
)
1181 if (sarg
& CHR_TIOCM_DSR
)
1183 if (sarg
& CHR_TIOCM_RI
)
1185 if (sarg
& CHR_TIOCM_DTR
)
1187 if (sarg
& CHR_TIOCM_RTS
)
1189 ioctl(s
->fd_in
, TIOCMSET
, &targ
);
1198 static void tty_exit(void)
1200 tcsetattr(0, TCSANOW
, &oldtty
);
1203 static void qemu_chr_close_tty(CharDriverState
*chr
)
1205 FDCharDriver
*s
= chr
->opaque
;
1219 static CharDriverState
*qemu_chr_open_tty(QemuOpts
*opts
)
1221 const char *filename
= qemu_opt_get(opts
, "path");
1222 CharDriverState
*chr
;
1225 TFR(fd
= open(filename
, O_RDWR
| O_NONBLOCK
));
1229 tty_serial_init(fd
, 115200, 'N', 8, 1);
1230 chr
= qemu_chr_open_fd(fd
, fd
);
1235 chr
->chr_ioctl
= tty_serial_ioctl
;
1236 chr
->chr_close
= qemu_chr_close_tty
;
1237 if (!term_atexit_done
++)
1241 #else /* ! __linux__ && ! __sun__ */
1242 static CharDriverState
*qemu_chr_open_pty(QemuOpts
*opts
)
1246 #endif /* __linux__ || __sun__ */
1248 #if defined(__linux__)
1252 } ParallelCharDriver
;
1254 static int pp_hw_mode(ParallelCharDriver
*s
, uint16_t mode
)
1256 if (s
->mode
!= mode
) {
1258 if (ioctl(s
->fd
, PPSETMODE
, &m
) < 0)
1265 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1267 ParallelCharDriver
*drv
= chr
->opaque
;
1272 case CHR_IOCTL_PP_READ_DATA
:
1273 if (ioctl(fd
, PPRDATA
, &b
) < 0)
1275 *(uint8_t *)arg
= b
;
1277 case CHR_IOCTL_PP_WRITE_DATA
:
1278 b
= *(uint8_t *)arg
;
1279 if (ioctl(fd
, PPWDATA
, &b
) < 0)
1282 case CHR_IOCTL_PP_READ_CONTROL
:
1283 if (ioctl(fd
, PPRCONTROL
, &b
) < 0)
1285 /* Linux gives only the lowest bits, and no way to know data
1286 direction! For better compatibility set the fixed upper
1288 *(uint8_t *)arg
= b
| 0xc0;
1290 case CHR_IOCTL_PP_WRITE_CONTROL
:
1291 b
= *(uint8_t *)arg
;
1292 if (ioctl(fd
, PPWCONTROL
, &b
) < 0)
1295 case CHR_IOCTL_PP_READ_STATUS
:
1296 if (ioctl(fd
, PPRSTATUS
, &b
) < 0)
1298 *(uint8_t *)arg
= b
;
1300 case CHR_IOCTL_PP_DATA_DIR
:
1301 if (ioctl(fd
, PPDATADIR
, (int *)arg
) < 0)
1304 case CHR_IOCTL_PP_EPP_READ_ADDR
:
1305 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1306 struct ParallelIOArg
*parg
= arg
;
1307 int n
= read(fd
, parg
->buffer
, parg
->count
);
1308 if (n
!= parg
->count
) {
1313 case CHR_IOCTL_PP_EPP_READ
:
1314 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1315 struct ParallelIOArg
*parg
= arg
;
1316 int n
= read(fd
, parg
->buffer
, parg
->count
);
1317 if (n
!= parg
->count
) {
1322 case CHR_IOCTL_PP_EPP_WRITE_ADDR
:
1323 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
|IEEE1284_ADDR
)) {
1324 struct ParallelIOArg
*parg
= arg
;
1325 int n
= write(fd
, parg
->buffer
, parg
->count
);
1326 if (n
!= parg
->count
) {
1331 case CHR_IOCTL_PP_EPP_WRITE
:
1332 if (pp_hw_mode(drv
, IEEE1284_MODE_EPP
)) {
1333 struct ParallelIOArg
*parg
= arg
;
1334 int n
= write(fd
, parg
->buffer
, parg
->count
);
1335 if (n
!= parg
->count
) {
1346 static void pp_close(CharDriverState
*chr
)
1348 ParallelCharDriver
*drv
= chr
->opaque
;
1351 pp_hw_mode(drv
, IEEE1284_MODE_COMPAT
);
1352 ioctl(fd
, PPRELEASE
);
1355 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1358 static CharDriverState
*qemu_chr_open_pp(QemuOpts
*opts
)
1360 const char *filename
= qemu_opt_get(opts
, "path");
1361 CharDriverState
*chr
;
1362 ParallelCharDriver
*drv
;
1365 TFR(fd
= open(filename
, O_RDWR
));
1369 if (ioctl(fd
, PPCLAIM
) < 0) {
1374 drv
= qemu_mallocz(sizeof(ParallelCharDriver
));
1376 drv
->mode
= IEEE1284_MODE_COMPAT
;
1378 chr
= qemu_mallocz(sizeof(CharDriverState
));
1379 chr
->chr_write
= null_chr_write
;
1380 chr
->chr_ioctl
= pp_ioctl
;
1381 chr
->chr_close
= pp_close
;
1384 qemu_chr_generic_open(chr
);
1388 #endif /* __linux__ */
1390 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1391 static int pp_ioctl(CharDriverState
*chr
, int cmd
, void *arg
)
1393 int fd
= (int)(long)chr
->opaque
;
1397 case CHR_IOCTL_PP_READ_DATA
:
1398 if (ioctl(fd
, PPIGDATA
, &b
) < 0)
1400 *(uint8_t *)arg
= b
;
1402 case CHR_IOCTL_PP_WRITE_DATA
:
1403 b
= *(uint8_t *)arg
;
1404 if (ioctl(fd
, PPISDATA
, &b
) < 0)
1407 case CHR_IOCTL_PP_READ_CONTROL
:
1408 if (ioctl(fd
, PPIGCTRL
, &b
) < 0)
1410 *(uint8_t *)arg
= b
;
1412 case CHR_IOCTL_PP_WRITE_CONTROL
:
1413 b
= *(uint8_t *)arg
;
1414 if (ioctl(fd
, PPISCTRL
, &b
) < 0)
1417 case CHR_IOCTL_PP_READ_STATUS
:
1418 if (ioctl(fd
, PPIGSTATUS
, &b
) < 0)
1420 *(uint8_t *)arg
= b
;
1428 static CharDriverState
*qemu_chr_open_pp(QemuOpts
*opts
)
1430 const char *filename
= qemu_opt_get(opts
, "path");
1431 CharDriverState
*chr
;
1434 fd
= open(filename
, O_RDWR
);
1438 chr
= qemu_mallocz(sizeof(CharDriverState
));
1439 chr
->opaque
= (void *)(long)fd
;
1440 chr
->chr_write
= null_chr_write
;
1441 chr
->chr_ioctl
= pp_ioctl
;
1450 HANDLE hcom
, hrecv
, hsend
;
1451 OVERLAPPED orecv
, osend
;
1456 #define NSENDBUF 2048
1457 #define NRECVBUF 2048
1458 #define MAXCONNECT 1
1459 #define NTIMEOUT 5000
1461 static int win_chr_poll(void *opaque
);
1462 static int win_chr_pipe_poll(void *opaque
);
1464 static void win_chr_close(CharDriverState
*chr
)
1466 WinCharState
*s
= chr
->opaque
;
1469 CloseHandle(s
->hsend
);
1473 CloseHandle(s
->hrecv
);
1477 CloseHandle(s
->hcom
);
1481 qemu_del_polling_cb(win_chr_pipe_poll
, chr
);
1483 qemu_del_polling_cb(win_chr_poll
, chr
);
1485 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1488 static int win_chr_init(CharDriverState
*chr
, const char *filename
)
1490 WinCharState
*s
= chr
->opaque
;
1492 COMMTIMEOUTS cto
= { 0, 0, 0, 0, 0};
1497 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1499 fprintf(stderr
, "Failed CreateEvent\n");
1502 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1504 fprintf(stderr
, "Failed CreateEvent\n");
1508 s
->hcom
= CreateFile(filename
, GENERIC_READ
|GENERIC_WRITE
, 0, NULL
,
1509 OPEN_EXISTING
, FILE_FLAG_OVERLAPPED
, 0);
1510 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1511 fprintf(stderr
, "Failed CreateFile (%lu)\n", GetLastError());
1516 if (!SetupComm(s
->hcom
, NRECVBUF
, NSENDBUF
)) {
1517 fprintf(stderr
, "Failed SetupComm\n");
1521 ZeroMemory(&comcfg
, sizeof(COMMCONFIG
));
1522 size
= sizeof(COMMCONFIG
);
1523 GetDefaultCommConfig(filename
, &comcfg
, &size
);
1524 comcfg
.dcb
.DCBlength
= sizeof(DCB
);
1525 CommConfigDialog(filename
, NULL
, &comcfg
);
1527 if (!SetCommState(s
->hcom
, &comcfg
.dcb
)) {
1528 fprintf(stderr
, "Failed SetCommState\n");
1532 if (!SetCommMask(s
->hcom
, EV_ERR
)) {
1533 fprintf(stderr
, "Failed SetCommMask\n");
1537 cto
.ReadIntervalTimeout
= MAXDWORD
;
1538 if (!SetCommTimeouts(s
->hcom
, &cto
)) {
1539 fprintf(stderr
, "Failed SetCommTimeouts\n");
1543 if (!ClearCommError(s
->hcom
, &err
, &comstat
)) {
1544 fprintf(stderr
, "Failed ClearCommError\n");
1547 qemu_add_polling_cb(win_chr_poll
, chr
);
1555 static int win_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len1
)
1557 WinCharState
*s
= chr
->opaque
;
1558 DWORD len
, ret
, size
, err
;
1561 ZeroMemory(&s
->osend
, sizeof(s
->osend
));
1562 s
->osend
.hEvent
= s
->hsend
;
1565 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, &s
->osend
);
1567 ret
= WriteFile(s
->hcom
, buf
, len
, &size
, NULL
);
1569 err
= GetLastError();
1570 if (err
== ERROR_IO_PENDING
) {
1571 ret
= GetOverlappedResult(s
->hcom
, &s
->osend
, &size
, TRUE
);
1589 static int win_chr_read_poll(CharDriverState
*chr
)
1591 WinCharState
*s
= chr
->opaque
;
1593 s
->max_size
= qemu_chr_can_read(chr
);
1597 static void win_chr_readfile(CharDriverState
*chr
)
1599 WinCharState
*s
= chr
->opaque
;
1601 uint8_t buf
[READ_BUF_LEN
];
1604 ZeroMemory(&s
->orecv
, sizeof(s
->orecv
));
1605 s
->orecv
.hEvent
= s
->hrecv
;
1606 ret
= ReadFile(s
->hcom
, buf
, s
->len
, &size
, &s
->orecv
);
1608 err
= GetLastError();
1609 if (err
== ERROR_IO_PENDING
) {
1610 ret
= GetOverlappedResult(s
->hcom
, &s
->orecv
, &size
, TRUE
);
1615 qemu_chr_read(chr
, buf
, size
);
1619 static void win_chr_read(CharDriverState
*chr
)
1621 WinCharState
*s
= chr
->opaque
;
1623 if (s
->len
> s
->max_size
)
1624 s
->len
= s
->max_size
;
1628 win_chr_readfile(chr
);
1631 static int win_chr_poll(void *opaque
)
1633 CharDriverState
*chr
= opaque
;
1634 WinCharState
*s
= chr
->opaque
;
1638 ClearCommError(s
->hcom
, &comerr
, &status
);
1639 if (status
.cbInQue
> 0) {
1640 s
->len
= status
.cbInQue
;
1641 win_chr_read_poll(chr
);
1648 static CharDriverState
*qemu_chr_open_win(QemuOpts
*opts
)
1650 const char *filename
= qemu_opt_get(opts
, "path");
1651 CharDriverState
*chr
;
1654 chr
= qemu_mallocz(sizeof(CharDriverState
));
1655 s
= qemu_mallocz(sizeof(WinCharState
));
1657 chr
->chr_write
= win_chr_write
;
1658 chr
->chr_close
= win_chr_close
;
1660 if (win_chr_init(chr
, filename
) < 0) {
1665 qemu_chr_generic_open(chr
);
1669 static int win_chr_pipe_poll(void *opaque
)
1671 CharDriverState
*chr
= opaque
;
1672 WinCharState
*s
= chr
->opaque
;
1675 PeekNamedPipe(s
->hcom
, NULL
, 0, NULL
, &size
, NULL
);
1678 win_chr_read_poll(chr
);
1685 static int win_chr_pipe_init(CharDriverState
*chr
, const char *filename
)
1687 WinCharState
*s
= chr
->opaque
;
1695 s
->hsend
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1697 fprintf(stderr
, "Failed CreateEvent\n");
1700 s
->hrecv
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1702 fprintf(stderr
, "Failed CreateEvent\n");
1706 snprintf(openname
, sizeof(openname
), "\\\\.\\pipe\\%s", filename
);
1707 s
->hcom
= CreateNamedPipe(openname
, PIPE_ACCESS_DUPLEX
| FILE_FLAG_OVERLAPPED
,
1708 PIPE_TYPE_BYTE
| PIPE_READMODE_BYTE
|
1710 MAXCONNECT
, NSENDBUF
, NRECVBUF
, NTIMEOUT
, NULL
);
1711 if (s
->hcom
== INVALID_HANDLE_VALUE
) {
1712 fprintf(stderr
, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1717 ZeroMemory(&ov
, sizeof(ov
));
1718 ov
.hEvent
= CreateEvent(NULL
, TRUE
, FALSE
, NULL
);
1719 ret
= ConnectNamedPipe(s
->hcom
, &ov
);
1721 fprintf(stderr
, "Failed ConnectNamedPipe\n");
1725 ret
= GetOverlappedResult(s
->hcom
, &ov
, &size
, TRUE
);
1727 fprintf(stderr
, "Failed GetOverlappedResult\n");
1729 CloseHandle(ov
.hEvent
);
1736 CloseHandle(ov
.hEvent
);
1739 qemu_add_polling_cb(win_chr_pipe_poll
, chr
);
1748 static CharDriverState
*qemu_chr_open_win_pipe(QemuOpts
*opts
)
1750 const char *filename
= qemu_opt_get(opts
, "path");
1751 CharDriverState
*chr
;
1754 chr
= qemu_mallocz(sizeof(CharDriverState
));
1755 s
= qemu_mallocz(sizeof(WinCharState
));
1757 chr
->chr_write
= win_chr_write
;
1758 chr
->chr_close
= win_chr_close
;
1760 if (win_chr_pipe_init(chr
, filename
) < 0) {
1765 qemu_chr_generic_open(chr
);
1769 static CharDriverState
*qemu_chr_open_win_file(HANDLE fd_out
)
1771 CharDriverState
*chr
;
1774 chr
= qemu_mallocz(sizeof(CharDriverState
));
1775 s
= qemu_mallocz(sizeof(WinCharState
));
1778 chr
->chr_write
= win_chr_write
;
1779 qemu_chr_generic_open(chr
);
1783 static CharDriverState
*qemu_chr_open_win_con(QemuOpts
*opts
)
1785 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE
));
1788 static CharDriverState
*qemu_chr_open_win_file_out(QemuOpts
*opts
)
1790 const char *file_out
= qemu_opt_get(opts
, "path");
1793 fd_out
= CreateFile(file_out
, GENERIC_WRITE
, FILE_SHARE_READ
, NULL
,
1794 OPEN_ALWAYS
, FILE_ATTRIBUTE_NORMAL
, NULL
);
1795 if (fd_out
== INVALID_HANDLE_VALUE
)
1798 return qemu_chr_open_win_file(fd_out
);
1800 #endif /* !_WIN32 */
1802 /***********************************************************/
1803 /* UDP Net console */
1807 uint8_t buf
[READ_BUF_LEN
];
1813 static int udp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1815 NetCharDriver
*s
= chr
->opaque
;
1817 return send(s
->fd
, (const void *)buf
, len
, 0);
1820 static int udp_chr_read_poll(void *opaque
)
1822 CharDriverState
*chr
= opaque
;
1823 NetCharDriver
*s
= chr
->opaque
;
1825 s
->max_size
= qemu_chr_can_read(chr
);
1827 /* If there were any stray characters in the queue process them
1830 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
1831 qemu_chr_read(chr
, &s
->buf
[s
->bufptr
], 1);
1833 s
->max_size
= qemu_chr_can_read(chr
);
1838 static void udp_chr_read(void *opaque
)
1840 CharDriverState
*chr
= opaque
;
1841 NetCharDriver
*s
= chr
->opaque
;
1843 if (s
->max_size
== 0)
1845 s
->bufcnt
= recv(s
->fd
, (void *)s
->buf
, sizeof(s
->buf
), 0);
1846 s
->bufptr
= s
->bufcnt
;
1851 while (s
->max_size
> 0 && s
->bufptr
< s
->bufcnt
) {
1852 qemu_chr_read(chr
, &s
->buf
[s
->bufptr
], 1);
1854 s
->max_size
= qemu_chr_can_read(chr
);
1858 static void udp_chr_update_read_handler(CharDriverState
*chr
)
1860 NetCharDriver
*s
= chr
->opaque
;
1863 qemu_set_fd_handler2(s
->fd
, udp_chr_read_poll
,
1864 udp_chr_read
, NULL
, chr
);
1868 static void udp_chr_close(CharDriverState
*chr
)
1870 NetCharDriver
*s
= chr
->opaque
;
1872 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1876 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
1879 static CharDriverState
*qemu_chr_open_udp(QemuOpts
*opts
)
1881 CharDriverState
*chr
= NULL
;
1882 NetCharDriver
*s
= NULL
;
1885 chr
= qemu_mallocz(sizeof(CharDriverState
));
1886 s
= qemu_mallocz(sizeof(NetCharDriver
));
1888 fd
= inet_dgram_opts(opts
);
1890 fprintf(stderr
, "inet_dgram_opts failed\n");
1898 chr
->chr_write
= udp_chr_write
;
1899 chr
->chr_update_read_handler
= udp_chr_update_read_handler
;
1900 chr
->chr_close
= udp_chr_close
;
1913 /***********************************************************/
1914 /* TCP Net console */
1926 static void tcp_chr_accept(void *opaque
);
1928 static int tcp_chr_write(CharDriverState
*chr
, const uint8_t *buf
, int len
)
1930 TCPCharDriver
*s
= chr
->opaque
;
1932 return send_all(s
->fd
, buf
, len
);
1934 /* XXX: indicate an error ? */
1939 static int tcp_chr_read_poll(void *opaque
)
1941 CharDriverState
*chr
= opaque
;
1942 TCPCharDriver
*s
= chr
->opaque
;
1945 s
->max_size
= qemu_chr_can_read(chr
);
1950 #define IAC_BREAK 243
1951 static void tcp_chr_process_IAC_bytes(CharDriverState
*chr
,
1953 uint8_t *buf
, int *size
)
1955 /* Handle any telnet client's basic IAC options to satisfy char by
1956 * char mode with no echo. All IAC options will be removed from
1957 * the buf and the do_telnetopt variable will be used to track the
1958 * state of the width of the IAC information.
1960 * IAC commands come in sets of 3 bytes with the exception of the
1961 * "IAC BREAK" command and the double IAC.
1967 for (i
= 0; i
< *size
; i
++) {
1968 if (s
->do_telnetopt
> 1) {
1969 if ((unsigned char)buf
[i
] == IAC
&& s
->do_telnetopt
== 2) {
1970 /* Double IAC means send an IAC */
1974 s
->do_telnetopt
= 1;
1976 if ((unsigned char)buf
[i
] == IAC_BREAK
&& s
->do_telnetopt
== 2) {
1977 /* Handle IAC break commands by sending a serial break */
1978 qemu_chr_event(chr
, CHR_EVENT_BREAK
);
1983 if (s
->do_telnetopt
>= 4) {
1984 s
->do_telnetopt
= 1;
1987 if ((unsigned char)buf
[i
] == IAC
) {
1988 s
->do_telnetopt
= 2;
1999 static int tcp_get_msgfd(CharDriverState
*chr
)
2001 TCPCharDriver
*s
= chr
->opaque
;
2008 static void unix_process_msgfd(CharDriverState
*chr
, struct msghdr
*msg
)
2010 TCPCharDriver
*s
= chr
->opaque
;
2011 struct cmsghdr
*cmsg
;
2013 for (cmsg
= CMSG_FIRSTHDR(msg
); cmsg
; cmsg
= CMSG_NXTHDR(msg
, cmsg
)) {
2016 if (cmsg
->cmsg_len
!= CMSG_LEN(sizeof(int)) ||
2017 cmsg
->cmsg_level
!= SOL_SOCKET
||
2018 cmsg
->cmsg_type
!= SCM_RIGHTS
)
2021 fd
= *((int *)CMSG_DATA(cmsg
));
2031 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2033 TCPCharDriver
*s
= chr
->opaque
;
2034 struct msghdr msg
= { NULL
, };
2035 struct iovec iov
[1];
2037 struct cmsghdr cmsg
;
2038 char control
[CMSG_SPACE(sizeof(int))];
2042 iov
[0].iov_base
= buf
;
2043 iov
[0].iov_len
= len
;
2047 msg
.msg_control
= &msg_control
;
2048 msg
.msg_controllen
= sizeof(msg_control
);
2050 ret
= recvmsg(s
->fd
, &msg
, 0);
2051 if (ret
> 0 && s
->is_unix
)
2052 unix_process_msgfd(chr
, &msg
);
2057 static ssize_t
tcp_chr_recv(CharDriverState
*chr
, char *buf
, size_t len
)
2059 TCPCharDriver
*s
= chr
->opaque
;
2060 return recv(s
->fd
, buf
, len
, 0);
2064 static void tcp_chr_read(void *opaque
)
2066 CharDriverState
*chr
= opaque
;
2067 TCPCharDriver
*s
= chr
->opaque
;
2068 uint8_t buf
[READ_BUF_LEN
];
2071 if (!s
->connected
|| s
->max_size
<= 0)
2074 if (len
> s
->max_size
)
2076 size
= tcp_chr_recv(chr
, (void *)buf
, len
);
2078 /* connection closed */
2080 if (s
->listen_fd
>= 0) {
2081 qemu_set_fd_handler(s
->listen_fd
, tcp_chr_accept
, NULL
, chr
);
2083 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
2086 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
2087 } else if (size
> 0) {
2088 if (s
->do_telnetopt
)
2089 tcp_chr_process_IAC_bytes(chr
, s
, buf
, &size
);
2091 qemu_chr_read(chr
, buf
, size
);
2095 static void tcp_chr_connect(void *opaque
)
2097 CharDriverState
*chr
= opaque
;
2098 TCPCharDriver
*s
= chr
->opaque
;
2101 qemu_set_fd_handler2(s
->fd
, tcp_chr_read_poll
,
2102 tcp_chr_read
, NULL
, chr
);
2103 qemu_chr_generic_open(chr
);
2106 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2107 static void tcp_chr_telnet_init(int fd
)
2110 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2111 IACSET(buf
, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2112 send(fd
, (char *)buf
, 3, 0);
2113 IACSET(buf
, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2114 send(fd
, (char *)buf
, 3, 0);
2115 IACSET(buf
, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2116 send(fd
, (char *)buf
, 3, 0);
2117 IACSET(buf
, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2118 send(fd
, (char *)buf
, 3, 0);
2121 static void socket_set_nodelay(int fd
)
2124 setsockopt(fd
, IPPROTO_TCP
, TCP_NODELAY
, (char *)&val
, sizeof(val
));
2127 static void tcp_chr_accept(void *opaque
)
2129 CharDriverState
*chr
= opaque
;
2130 TCPCharDriver
*s
= chr
->opaque
;
2131 struct sockaddr_in saddr
;
2133 struct sockaddr_un uaddr
;
2135 struct sockaddr
*addr
;
2142 len
= sizeof(uaddr
);
2143 addr
= (struct sockaddr
*)&uaddr
;
2147 len
= sizeof(saddr
);
2148 addr
= (struct sockaddr
*)&saddr
;
2150 fd
= qemu_accept(s
->listen_fd
, addr
, &len
);
2151 if (fd
< 0 && errno
!= EINTR
) {
2153 } else if (fd
>= 0) {
2154 if (s
->do_telnetopt
)
2155 tcp_chr_telnet_init(fd
);
2159 socket_set_nonblock(fd
);
2161 socket_set_nodelay(fd
);
2163 qemu_set_fd_handler(s
->listen_fd
, NULL
, NULL
, NULL
);
2164 tcp_chr_connect(chr
);
2167 static void tcp_chr_close(CharDriverState
*chr
)
2169 TCPCharDriver
*s
= chr
->opaque
;
2171 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
2174 if (s
->listen_fd
>= 0) {
2175 qemu_set_fd_handler(s
->listen_fd
, NULL
, NULL
, NULL
);
2176 closesocket(s
->listen_fd
);
2179 qemu_chr_event(chr
, CHR_EVENT_CLOSED
);
2182 static CharDriverState
*qemu_chr_open_socket(QemuOpts
*opts
)
2184 CharDriverState
*chr
= NULL
;
2185 TCPCharDriver
*s
= NULL
;
2193 is_listen
= qemu_opt_get_bool(opts
, "server", 0);
2194 is_waitconnect
= qemu_opt_get_bool(opts
, "wait", 1);
2195 is_telnet
= qemu_opt_get_bool(opts
, "telnet", 0);
2196 do_nodelay
= !qemu_opt_get_bool(opts
, "delay", 1);
2197 is_unix
= qemu_opt_get(opts
, "path") != NULL
;
2201 chr
= qemu_mallocz(sizeof(CharDriverState
));
2202 s
= qemu_mallocz(sizeof(TCPCharDriver
));
2206 fd
= unix_listen_opts(opts
);
2208 fd
= unix_connect_opts(opts
);
2212 fd
= inet_listen_opts(opts
, 0);
2214 fd
= inet_connect_opts(opts
);
2220 if (!is_waitconnect
)
2221 socket_set_nonblock(fd
);
2227 s
->is_unix
= is_unix
;
2228 s
->do_nodelay
= do_nodelay
&& !is_unix
;
2231 chr
->chr_write
= tcp_chr_write
;
2232 chr
->chr_close
= tcp_chr_close
;
2233 chr
->get_msgfd
= tcp_get_msgfd
;
2237 qemu_set_fd_handler(s
->listen_fd
, tcp_chr_accept
, NULL
, chr
);
2239 s
->do_telnetopt
= 1;
2244 socket_set_nodelay(fd
);
2245 tcp_chr_connect(chr
);
2248 /* for "info chardev" monitor command */
2249 chr
->filename
= qemu_malloc(256);
2251 snprintf(chr
->filename
, 256, "unix:%s%s",
2252 qemu_opt_get(opts
, "path"),
2253 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2254 } else if (is_telnet
) {
2255 snprintf(chr
->filename
, 256, "telnet:%s:%s%s",
2256 qemu_opt_get(opts
, "host"), qemu_opt_get(opts
, "port"),
2257 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2259 snprintf(chr
->filename
, 256, "tcp:%s:%s%s",
2260 qemu_opt_get(opts
, "host"), qemu_opt_get(opts
, "port"),
2261 qemu_opt_get_bool(opts
, "server", 0) ? ",server" : "");
2264 if (is_listen
&& is_waitconnect
) {
2265 printf("QEMU waiting for connection on: %s\n",
2267 tcp_chr_accept(chr
);
2268 socket_set_nonblock(s
->listen_fd
);
2280 QemuOpts
*qemu_chr_parse_compat(const char *label
, const char *filename
)
2282 char host
[65], port
[33], width
[8], height
[8];
2287 opts
= qemu_opts_create(&qemu_chardev_opts
, label
, 1);
2291 if (strstart(filename
, "mon:", &p
)) {
2293 qemu_opt_set(opts
, "mux", "on");
2296 if (strcmp(filename
, "null") == 0 ||
2297 strcmp(filename
, "pty") == 0 ||
2298 strcmp(filename
, "msmouse") == 0 ||
2299 strcmp(filename
, "braille") == 0 ||
2300 strcmp(filename
, "stdio") == 0) {
2301 qemu_opt_set(opts
, "backend", filename
);
2304 if (strstart(filename
, "vc", &p
)) {
2305 qemu_opt_set(opts
, "backend", "vc");
2307 if (sscanf(p
+1, "%8[0-9]x%8[0-9]", width
, height
) == 2) {
2309 qemu_opt_set(opts
, "width", width
);
2310 qemu_opt_set(opts
, "height", height
);
2311 } else if (sscanf(p
+1, "%8[0-9]Cx%8[0-9]C", width
, height
) == 2) {
2313 qemu_opt_set(opts
, "cols", width
);
2314 qemu_opt_set(opts
, "rows", height
);
2321 if (strcmp(filename
, "con:") == 0) {
2322 qemu_opt_set(opts
, "backend", "console");
2325 if (strstart(filename
, "COM", NULL
)) {
2326 qemu_opt_set(opts
, "backend", "serial");
2327 qemu_opt_set(opts
, "path", filename
);
2330 if (strstart(filename
, "file:", &p
)) {
2331 qemu_opt_set(opts
, "backend", "file");
2332 qemu_opt_set(opts
, "path", p
);
2335 if (strstart(filename
, "pipe:", &p
)) {
2336 qemu_opt_set(opts
, "backend", "pipe");
2337 qemu_opt_set(opts
, "path", p
);
2340 if (strstart(filename
, "tcp:", &p
) ||
2341 strstart(filename
, "telnet:", &p
)) {
2342 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2344 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1)
2347 qemu_opt_set(opts
, "backend", "socket");
2348 qemu_opt_set(opts
, "host", host
);
2349 qemu_opt_set(opts
, "port", port
);
2350 if (p
[pos
] == ',') {
2351 if (qemu_opts_do_parse(opts
, p
+pos
+1, NULL
) != 0)
2354 if (strstart(filename
, "telnet:", &p
))
2355 qemu_opt_set(opts
, "telnet", "on");
2358 if (strstart(filename
, "udp:", &p
)) {
2359 qemu_opt_set(opts
, "backend", "udp");
2360 if (sscanf(p
, "%64[^:]:%32[^@,]%n", host
, port
, &pos
) < 2) {
2362 if (sscanf(p
, ":%32[^@,]%n", port
, &pos
) < 1) {
2366 qemu_opt_set(opts
, "host", host
);
2367 qemu_opt_set(opts
, "port", port
);
2368 if (p
[pos
] == '@') {
2370 if (sscanf(p
, "%64[^:]:%32[^,]%n", host
, port
, &pos
) < 2) {
2372 if (sscanf(p
, ":%32[^,]%n", port
, &pos
) < 1) {
2376 qemu_opt_set(opts
, "localaddr", host
);
2377 qemu_opt_set(opts
, "localport", port
);
2381 if (strstart(filename
, "unix:", &p
)) {
2382 qemu_opt_set(opts
, "backend", "socket");
2383 if (qemu_opts_do_parse(opts
, p
, "path") != 0)
2387 if (strstart(filename
, "/dev/parport", NULL
) ||
2388 strstart(filename
, "/dev/ppi", NULL
)) {
2389 qemu_opt_set(opts
, "backend", "parport");
2390 qemu_opt_set(opts
, "path", filename
);
2393 if (strstart(filename
, "/dev/", NULL
)) {
2394 qemu_opt_set(opts
, "backend", "tty");
2395 qemu_opt_set(opts
, "path", filename
);
2400 qemu_opts_del(opts
);
2404 static const struct {
2406 CharDriverState
*(*open
)(QemuOpts
*opts
);
2407 } backend_table
[] = {
2408 { .name
= "null", .open
= qemu_chr_open_null
},
2409 { .name
= "socket", .open
= qemu_chr_open_socket
},
2410 { .name
= "udp", .open
= qemu_chr_open_udp
},
2411 { .name
= "msmouse", .open
= qemu_chr_open_msmouse
},
2412 { .name
= "vc", .open
= text_console_init
},
2414 { .name
= "file", .open
= qemu_chr_open_win_file_out
},
2415 { .name
= "pipe", .open
= qemu_chr_open_win_pipe
},
2416 { .name
= "console", .open
= qemu_chr_open_win_con
},
2417 { .name
= "serial", .open
= qemu_chr_open_win
},
2419 { .name
= "file", .open
= qemu_chr_open_file_out
},
2420 { .name
= "pipe", .open
= qemu_chr_open_pipe
},
2421 { .name
= "pty", .open
= qemu_chr_open_pty
},
2422 { .name
= "stdio", .open
= qemu_chr_open_stdio
},
2424 #ifdef CONFIG_BRLAPI
2425 { .name
= "braille", .open
= chr_baum_init
},
2427 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2428 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2429 || defined(__FreeBSD_kernel__)
2430 { .name
= "tty", .open
= qemu_chr_open_tty
},
2432 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2433 || defined(__FreeBSD_kernel__)
2434 { .name
= "parport", .open
= qemu_chr_open_pp
},
2438 CharDriverState
*qemu_chr_open_opts(QemuOpts
*opts
,
2439 void (*init
)(struct CharDriverState
*s
))
2441 CharDriverState
*chr
;
2444 if (qemu_opts_id(opts
) == NULL
) {
2445 fprintf(stderr
, "chardev: no id specified\n");
2449 for (i
= 0; i
< ARRAY_SIZE(backend_table
); i
++) {
2450 if (strcmp(backend_table
[i
].name
, qemu_opt_get(opts
, "backend")) == 0)
2453 if (i
== ARRAY_SIZE(backend_table
)) {
2454 fprintf(stderr
, "chardev: backend \"%s\" not found\n",
2455 qemu_opt_get(opts
, "backend"));
2459 chr
= backend_table
[i
].open(opts
);
2461 fprintf(stderr
, "chardev: opening backend \"%s\" failed\n",
2462 qemu_opt_get(opts
, "backend"));
2467 chr
->filename
= qemu_strdup(qemu_opt_get(opts
, "backend"));
2469 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
2471 if (qemu_opt_get_bool(opts
, "mux", 0)) {
2472 CharDriverState
*base
= chr
;
2473 int len
= strlen(qemu_opts_id(opts
)) + 6;
2474 base
->label
= qemu_malloc(len
);
2475 snprintf(base
->label
, len
, "%s-base", qemu_opts_id(opts
));
2476 chr
= qemu_chr_open_mux(base
);
2477 chr
->filename
= base
->filename
;
2478 QTAILQ_INSERT_TAIL(&chardevs
, chr
, next
);
2480 chr
->label
= qemu_strdup(qemu_opts_id(opts
));
2484 CharDriverState
*qemu_chr_open(const char *label
, const char *filename
, void (*init
)(struct CharDriverState
*s
))
2487 CharDriverState
*chr
;
2490 if (strstart(filename
, "chardev:", &p
)) {
2491 return qemu_chr_find(p
);
2494 opts
= qemu_chr_parse_compat(label
, filename
);
2498 chr
= qemu_chr_open_opts(opts
, init
);
2499 if (chr
&& qemu_opt_get_bool(opts
, "mux", 0)) {
2500 monitor_init(chr
, MONITOR_USE_READLINE
);
2505 void qemu_chr_close(CharDriverState
*chr
)
2507 QTAILQ_REMOVE(&chardevs
, chr
, next
);
2509 chr
->chr_close(chr
);
2510 qemu_free(chr
->filename
);
2511 qemu_free(chr
->label
);
2515 static void qemu_chr_qlist_iter(QObject
*obj
, void *opaque
)
2518 Monitor
*mon
= opaque
;
2520 chr_dict
= qobject_to_qdict(obj
);
2521 monitor_printf(mon
, "%s: filename=%s\n", qdict_get_str(chr_dict
, "label"),
2522 qdict_get_str(chr_dict
, "filename"));
2525 void qemu_chr_info_print(Monitor
*mon
, const QObject
*ret_data
)
2527 qlist_iter(qobject_to_qlist(ret_data
), qemu_chr_qlist_iter
, mon
);
2530 void qemu_chr_info(Monitor
*mon
, QObject
**ret_data
)
2533 CharDriverState
*chr
;
2535 chr_list
= qlist_new();
2537 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
2538 QObject
*obj
= qobject_from_jsonf("{ 'label': %s, 'filename': %s }",
2539 chr
->label
, chr
->filename
);
2540 qlist_append_obj(chr_list
, obj
);
2543 *ret_data
= QOBJECT(chr_list
);
2546 CharDriverState
*qemu_chr_find(const char *name
)
2548 CharDriverState
*chr
;
2550 QTAILQ_FOREACH(chr
, &chardevs
, next
) {
2551 if (strcmp(chr
->label
, name
) != 0)