?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
m68k,linux-user: add setup_frame
[qemu/kevin.git] / qemu-char.c
blobc25ed1c610f2c5e608a40bcbf2626b8dbd6592af
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
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:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
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
22 * THE SOFTWARE.
23 */
24 #include "qemu-common.h"
25 #include "net.h"
26 #include "monitor.h"
27 #include "console.h"
28 #include "sysemu.h"
29 #include "qemu-timer.h"
30 #include "qemu-char.h"
31 #include "block.h"
32 #include "hw/usb.h"
33 #include "hw/baum.h"
34 #include "hw/msmouse.h"
35
36 #include <unistd.h>
37 #include <fcntl.h>
38 #include <signal.h>
39 #include <time.h>
40 #include <errno.h>
41 #include <sys/time.h>
42 #include <zlib.h>
43
44 #ifndef _WIN32
45 #include <sys/times.h>
46 #include <sys/wait.h>
47 #include <termios.h>
48 #include <sys/mman.h>
49 #include <sys/ioctl.h>
50 #include <sys/resource.h>
51 #include <sys/socket.h>
52 #include <netinet/in.h>
53 #include <net/if.h>
54 #ifdef __NetBSD__
55 #include <net/if_tap.h>
56 #endif
57 #ifdef __linux__
58 #include <linux/if_tun.h>
59 #endif
60 #include <arpa/inet.h>
61 #include <dirent.h>
62 #include <netdb.h>
63 #include <sys/select.h>
64 #ifdef CONFIG_BSD
65 #include <sys/stat.h>
66 #ifdef __FreeBSD__
67 #include <libutil.h>
68 #include <dev/ppbus/ppi.h>
69 #include <dev/ppbus/ppbconf.h>
70 #elif defined(__DragonFly__)
71 #include <libutil.h>
72 #include <dev/misc/ppi/ppi.h>
73 #include <bus/ppbus/ppbconf.h>
74 #else
75 #include <util.h>
76 #endif
77 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
78 #include <freebsd/stdlib.h>
79 #else
80 #ifdef __linux__
81 #include <pty.h>
82
83 #include <linux/ppdev.h>
84 #include <linux/parport.h>
85 #endif
86 #ifdef __sun__
87 #include <sys/stat.h>
88 #include <sys/ethernet.h>
89 #include <sys/sockio.h>
90 #include <netinet/arp.h>
91 #include <netinet/in.h>
92 #include <netinet/in_systm.h>
93 #include <netinet/ip.h>
94 #include <netinet/ip_icmp.h> // must come after ip.h
95 #include <netinet/udp.h>
96 #include <netinet/tcp.h>
97 #include <net/if.h>
98 #include <syslog.h>
99 #include <stropts.h>
100 #endif
101 #endif
102 #endif
103
104 #include "qemu_socket.h"
105
106 /***********************************************************/
107 /* character device */
108
109 static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
110 TAILQ_HEAD_INITIALIZER(chardevs);
111 static int initial_reset_issued;
112
113 static void qemu_chr_event(CharDriverState *s, int event)
114 {
115 if (!s->chr_event)
116 return;
117 s->chr_event(s->handler_opaque, event);
118 }
119
120 static void qemu_chr_reset_bh(void *opaque)
121 {
122 CharDriverState *s = opaque;
123 qemu_chr_event(s, CHR_EVENT_RESET);
124 qemu_bh_delete(s->bh);
125 s->bh = NULL;
126 }
127
128 void qemu_chr_reset(CharDriverState *s)
129 {
130 if (s->bh == NULL && initial_reset_issued) {
131 s->bh = qemu_bh_new(qemu_chr_reset_bh, s);
132 qemu_bh_schedule(s->bh);
133 }
134 }
135
136 void qemu_chr_initial_reset(void)
137 {
138 CharDriverState *chr;
139
140 initial_reset_issued = 1;
141
142 TAILQ_FOREACH(chr, &chardevs, next) {
143 qemu_chr_reset(chr);
144 }
145 }
146
147 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
148 {
149 return s->chr_write(s, buf, len);
150 }
151
152 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
153 {
154 if (!s->chr_ioctl)
155 return -ENOTSUP;
156 return s->chr_ioctl(s, cmd, arg);
157 }
158
159 int qemu_chr_can_read(CharDriverState *s)
160 {
161 if (!s->chr_can_read)
162 return 0;
163 return s->chr_can_read(s->handler_opaque);
164 }
165
166 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len)
167 {
168 s->chr_read(s->handler_opaque, buf, len);
169 }
170
171 int qemu_chr_get_msgfd(CharDriverState *s)
172 {
173 return s->get_msgfd ? s->get_msgfd(s) : -1;
174 }
175
176 void qemu_chr_accept_input(CharDriverState *s)
177 {
178 if (s->chr_accept_input)
179 s->chr_accept_input(s);
180 }
181
182 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
183 {
184 char buf[4096];
185 va_list ap;
186 va_start(ap, fmt);
187 vsnprintf(buf, sizeof(buf), fmt, ap);
188 qemu_chr_write(s, (uint8_t *)buf, strlen(buf));
189 va_end(ap);
190 }
191
192 void qemu_chr_send_event(CharDriverState *s, int event)
193 {
194 if (s->chr_send_event)
195 s->chr_send_event(s, event);
196 }
197
198 void qemu_chr_add_handlers(CharDriverState *s,
199 IOCanRWHandler *fd_can_read,
200 IOReadHandler *fd_read,
201 IOEventHandler *fd_event,
202 void *opaque)
203 {
204 s->chr_can_read = fd_can_read;
205 s->chr_read = fd_read;
206 s->chr_event = fd_event;
207 s->handler_opaque = opaque;
208 if (s->chr_update_read_handler)
209 s->chr_update_read_handler(s);
210 }
211
212 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
213 {
214 return len;
215 }
216
217 static CharDriverState *qemu_chr_open_null(void)
218 {
219 CharDriverState *chr;
220
221 chr = qemu_mallocz(sizeof(CharDriverState));
222 chr->chr_write = null_chr_write;
223 return chr;
224 }
225
226 /* MUX driver for serial I/O splitting */
227 #define MAX_MUX 4
228 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
229 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
230 typedef struct {
231 IOCanRWHandler *chr_can_read[MAX_MUX];
232 IOReadHandler *chr_read[MAX_MUX];
233 IOEventHandler *chr_event[MAX_MUX];
234 void *ext_opaque[MAX_MUX];
235 CharDriverState *drv;
236 int mux_cnt;
237 int term_got_escape;
238 int max_size;
239 /* Intermediate input buffer allows to catch escape sequences even if the
240 currently active device is not accepting any input - but only until it
241 is full as well. */
242 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
243 int prod[MAX_MUX];
244 int cons[MAX_MUX];
245 int timestamps;
246 int linestart;
247 int64_t timestamps_start;
248 } MuxDriver;
249
250
251 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
252 {
253 MuxDriver *d = chr->opaque;
254 int ret;
255 if (!d->timestamps) {
256 ret = d->drv->chr_write(d->drv, buf, len);
257 } else {
258 int i;
259
260 ret = 0;
261 for (i = 0; i < len; i++) {
262 if (d->linestart) {
263 char buf1[64];
264 int64_t ti;
265 int secs;
266
267 ti = qemu_get_clock(rt_clock);
268 if (d->timestamps_start == -1)
269 d->timestamps_start = ti;
270 ti -= d->timestamps_start;
271 secs = ti / 1000;
272 snprintf(buf1, sizeof(buf1),
273 "[%02d:%02d:%02d.%03d] ",
274 secs / 3600,
275 (secs / 60) % 60,
276 secs % 60,
277 (int)(ti % 1000));
278 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
279 d->linestart = 0;
280 }
281 ret += d->drv->chr_write(d->drv, buf+i, 1);
282 if (buf[i] == '\n') {
283 d->linestart = 1;
284 }
285 }
286 }
287 return ret;
288 }
289
290 static const char * const mux_help[] = {
291 "% h print this help\n\r",
292 "% x exit emulator\n\r",
293 "% s save disk data back to file (if -snapshot)\n\r",
294 "% t toggle console timestamps\n\r"
295 "% b send break (magic sysrq)\n\r",
296 "% c switch between console and monitor\n\r",
297 "% % sends %\n\r",
298 NULL
299 };
300
301 int term_escape_char = 0x01; /* ctrl-a is used for escape */
302 static void mux_print_help(CharDriverState *chr)
303 {
304 int i, j;
305 char ebuf[15] = "Escape-Char";
306 char cbuf[50] = "\n\r";
307
308 if (term_escape_char > 0 && term_escape_char < 26) {
309 snprintf(cbuf, sizeof(cbuf), "\n\r");
310 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
311 } else {
312 snprintf(cbuf, sizeof(cbuf),
313 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
314 term_escape_char);
315 }
316 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
317 for (i = 0; mux_help[i] != NULL; i++) {
318 for (j=0; mux_help[i][j] != '\0'; j++) {
319 if (mux_help[i][j] == '%')
320 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
321 else
322 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
323 }
324 }
325 }
326
327 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
328 {
329 if (d->chr_event[mux_nr])
330 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
331 }
332
333 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
334 {
335 if (d->term_got_escape) {
336 d->term_got_escape = 0;
337 if (ch == term_escape_char)
338 goto send_char;
339 switch(ch) {
340 case '?':
341 case 'h':
342 mux_print_help(chr);
343 break;
344 case 'x':
345 {
346 const char *term = "QEMU: Terminated\n\r";
347 chr->chr_write(chr,(uint8_t *)term,strlen(term));
348 exit(0);
349 break;
350 }
351 case 's':
352 {
353 DriveInfo *dinfo;
354 TAILQ_FOREACH(dinfo, &drives, next) {
355 bdrv_commit(dinfo->bdrv);
356 }
357 }
358 break;
359 case 'b':
360 qemu_chr_event(chr, CHR_EVENT_BREAK);
361 break;
362 case 'c':
363 /* Switch to the next registered device */
364 mux_chr_send_event(d, chr->focus, CHR_EVENT_MUX_OUT);
365 chr->focus++;
366 if (chr->focus >= d->mux_cnt)
367 chr->focus = 0;
368 mux_chr_send_event(d, chr->focus, CHR_EVENT_MUX_IN);
369 break;
370 case 't':
371 d->timestamps = !d->timestamps;
372 d->timestamps_start = -1;
373 d->linestart = 0;
374 break;
375 }
376 } else if (ch == term_escape_char) {
377 d->term_got_escape = 1;
378 } else {
379 send_char:
380 return 1;
381 }
382 return 0;
383 }
384
385 static void mux_chr_accept_input(CharDriverState *chr)
386 {
387 int m = chr->focus;
388 MuxDriver *d = chr->opaque;
389
390 while (d->prod[m] != d->cons[m] &&
391 d->chr_can_read[m] &&
392 d->chr_can_read[m](d->ext_opaque[m])) {
393 d->chr_read[m](d->ext_opaque[m],
394 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
395 }
396 }
397
398 static int mux_chr_can_read(void *opaque)
399 {
400 CharDriverState *chr = opaque;
401 MuxDriver *d = chr->opaque;
402 int m = chr->focus;
403
404 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
405 return 1;
406 if (d->chr_can_read[m])
407 return d->chr_can_read[m](d->ext_opaque[m]);
408 return 0;
409 }
410
411 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
412 {
413 CharDriverState *chr = opaque;
414 MuxDriver *d = chr->opaque;
415 int m = chr->focus;
416 int i;
417
418 mux_chr_accept_input (opaque);
419
420 for(i = 0; i < size; i++)
421 if (mux_proc_byte(chr, d, buf[i])) {
422 if (d->prod[m] == d->cons[m] &&
423 d->chr_can_read[m] &&
424 d->chr_can_read[m](d->ext_opaque[m]))
425 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
426 else
427 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
428 }
429 }
430
431 static void mux_chr_event(void *opaque, int event)
432 {
433 CharDriverState *chr = opaque;
434 MuxDriver *d = chr->opaque;
435 int i;
436
437 /* Send the event to all registered listeners */
438 for (i = 0; i < d->mux_cnt; i++)
439 mux_chr_send_event(d, i, event);
440 }
441
442 static void mux_chr_update_read_handler(CharDriverState *chr)
443 {
444 MuxDriver *d = chr->opaque;
445
446 if (d->mux_cnt >= MAX_MUX) {
447 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
448 return;
449 }
450 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
451 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
452 d->chr_read[d->mux_cnt] = chr->chr_read;
453 d->chr_event[d->mux_cnt] = chr->chr_event;
454 /* Fix up the real driver with mux routines */
455 if (d->mux_cnt == 0) {
456 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
457 mux_chr_event, chr);
458 }
459 chr->focus = d->mux_cnt;
460 d->mux_cnt++;
461 }
462
463 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
464 {
465 CharDriverState *chr;
466 MuxDriver *d;
467
468 chr = qemu_mallocz(sizeof(CharDriverState));
469 d = qemu_mallocz(sizeof(MuxDriver));
470
471 chr->opaque = d;
472 d->drv = drv;
473 chr->focus = -1;
474 chr->chr_write = mux_chr_write;
475 chr->chr_update_read_handler = mux_chr_update_read_handler;
476 chr->chr_accept_input = mux_chr_accept_input;
477 return chr;
478 }
479
480
481 #ifdef _WIN32
482 int send_all(int fd, const void *buf, int len1)
483 {
484 int ret, len;
485
486 len = len1;
487 while (len > 0) {
488 ret = send(fd, buf, len, 0);
489 if (ret < 0) {
490 errno = WSAGetLastError();
491 if (errno != WSAEWOULDBLOCK) {
492 return -1;
493 }
494 } else if (ret == 0) {
495 break;
496 } else {
497 buf += ret;
498 len -= ret;
499 }
500 }
501 return len1 - len;
502 }
503
504 #else
505
506 static int unix_write(int fd, const uint8_t *buf, int len1)
507 {
508 int ret, len;
509
510 len = len1;
511 while (len > 0) {
512 ret = write(fd, buf, len);
513 if (ret < 0) {
514 if (errno != EINTR && errno != EAGAIN)
515 return -1;
516 } else if (ret == 0) {
517 break;
518 } else {
519 buf += ret;
520 len -= ret;
521 }
522 }
523 return len1 - len;
524 }
525
526 int send_all(int fd, const void *buf, int len1)
527 {
528 return unix_write(fd, buf, len1);
529 }
530 #endif /* !_WIN32 */
531
532 #ifndef _WIN32
533
534 typedef struct {
535 int fd_in, fd_out;
536 int max_size;
537 } FDCharDriver;
538
539 #define STDIO_MAX_CLIENTS 1
540 static int stdio_nb_clients = 0;
541
542 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
543 {
544 FDCharDriver *s = chr->opaque;
545 return send_all(s->fd_out, buf, len);
546 }
547
548 static int fd_chr_read_poll(void *opaque)
549 {
550 CharDriverState *chr = opaque;
551 FDCharDriver *s = chr->opaque;
552
553 s->max_size = qemu_chr_can_read(chr);
554 return s->max_size;
555 }
556
557 static void fd_chr_read(void *opaque)
558 {
559 CharDriverState *chr = opaque;
560 FDCharDriver *s = chr->opaque;
561 int size, len;
562 uint8_t buf[1024];
563
564 len = sizeof(buf);
565 if (len > s->max_size)
566 len = s->max_size;
567 if (len == 0)
568 return;
569 size = read(s->fd_in, buf, len);
570 if (size == 0) {
571 /* FD has been closed. Remove it from the active list. */
572 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
573 qemu_chr_event(chr, CHR_EVENT_CLOSED);
574 return;
575 }
576 if (size > 0) {
577 qemu_chr_read(chr, buf, size);
578 }
579 }
580
581 static void fd_chr_update_read_handler(CharDriverState *chr)
582 {
583 FDCharDriver *s = chr->opaque;
584
585 if (s->fd_in >= 0) {
586 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
587 } else {
588 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
589 fd_chr_read, NULL, chr);
590 }
591 }
592 }
593
594 static void fd_chr_close(struct CharDriverState *chr)
595 {
596 FDCharDriver *s = chr->opaque;
597
598 if (s->fd_in >= 0) {
599 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
600 } else {
601 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
602 }
603 }
604
605 qemu_free(s);
606 qemu_chr_event(chr, CHR_EVENT_CLOSED);
607 }
608
609 /* open a character device to a unix fd */
610 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
611 {
612 CharDriverState *chr;
613 FDCharDriver *s;
614
615 chr = qemu_mallocz(sizeof(CharDriverState));
616 s = qemu_mallocz(sizeof(FDCharDriver));
617 s->fd_in = fd_in;
618 s->fd_out = fd_out;
619 chr->opaque = s;
620 chr->chr_write = fd_chr_write;
621 chr->chr_update_read_handler = fd_chr_update_read_handler;
622 chr->chr_close = fd_chr_close;
623
624 qemu_chr_reset(chr);
625
626 return chr;
627 }
628
629 static CharDriverState *qemu_chr_open_file_out(const char *file_out)
630 {
631 int fd_out;
632
633 TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
634 if (fd_out < 0)
635 return NULL;
636 return qemu_chr_open_fd(-1, fd_out);
637 }
638
639 static CharDriverState *qemu_chr_open_pipe(const char *filename)
640 {
641 int fd_in, fd_out;
642 char filename_in[256], filename_out[256];
643
644 snprintf(filename_in, 256, "%s.in", filename);
645 snprintf(filename_out, 256, "%s.out", filename);
646 TFR(fd_in = open(filename_in, O_RDWR | O_BINARY));
647 TFR(fd_out = open(filename_out, O_RDWR | O_BINARY));
648 if (fd_in < 0 || fd_out < 0) {
649 if (fd_in >= 0)
650 close(fd_in);
651 if (fd_out >= 0)
652 close(fd_out);
653 TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
654 if (fd_in < 0)
655 return NULL;
656 }
657 return qemu_chr_open_fd(fd_in, fd_out);
658 }
659
660
661 /* for STDIO, we handle the case where several clients use it
662 (nographic mode) */
663
664 #define TERM_FIFO_MAX_SIZE 1
665
666 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
667 static int term_fifo_size;
668
669 static int stdio_read_poll(void *opaque)
670 {
671 CharDriverState *chr = opaque;
672
673 /* try to flush the queue if needed */
674 if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) {
675 qemu_chr_read(chr, term_fifo, 1);
676 term_fifo_size = 0;
677 }
678 /* see if we can absorb more chars */
679 if (term_fifo_size == 0)
680 return 1;
681 else
682 return 0;
683 }
684
685 static void stdio_read(void *opaque)
686 {
687 int size;
688 uint8_t buf[1];
689 CharDriverState *chr = opaque;
690
691 size = read(0, buf, 1);
692 if (size == 0) {
693 /* stdin has been closed. Remove it from the active list. */
694 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
695 qemu_chr_event(chr, CHR_EVENT_CLOSED);
696 return;
697 }
698 if (size > 0) {
699 if (qemu_chr_can_read(chr) > 0) {
700 qemu_chr_read(chr, buf, 1);
701 } else if (term_fifo_size == 0) {
702 term_fifo[term_fifo_size++] = buf[0];
703 }
704 }
705 }
706
707 /* init terminal so that we can grab keys */
708 static struct termios oldtty;
709 static int old_fd0_flags;
710 static int term_atexit_done;
711
712 static void term_exit(void)
713 {
714 tcsetattr (0, TCSANOW, &oldtty);
715 fcntl(0, F_SETFL, old_fd0_flags);
716 }
717
718 static void term_init(void)
719 {
720 struct termios tty;
721
722 tcgetattr (0, &tty);
723 oldtty = tty;
724 old_fd0_flags = fcntl(0, F_GETFL);
725
726 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
727 |INLCR|IGNCR|ICRNL|IXON);
728 tty.c_oflag |= OPOST;
729 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
730 /* if graphical mode, we allow Ctrl-C handling */
731 if (display_type == DT_NOGRAPHIC)
732 tty.c_lflag &= ~ISIG;
733 tty.c_cflag &= ~(CSIZE|PARENB);
734 tty.c_cflag |= CS8;
735 tty.c_cc[VMIN] = 1;
736 tty.c_cc[VTIME] = 0;
737
738 tcsetattr (0, TCSANOW, &tty);
739
740 if (!term_atexit_done++)
741 atexit(term_exit);
742
743 fcntl(0, F_SETFL, O_NONBLOCK);
744 }
745
746 static void qemu_chr_close_stdio(struct CharDriverState *chr)
747 {
748 term_exit();
749 stdio_nb_clients--;
750 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
751 fd_chr_close(chr);
752 }
753
754 static CharDriverState *qemu_chr_open_stdio(void)
755 {
756 CharDriverState *chr;
757
758 if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
759 return NULL;
760 chr = qemu_chr_open_fd(0, 1);
761 chr->chr_close = qemu_chr_close_stdio;
762 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
763 stdio_nb_clients++;
764 term_init();
765
766 return chr;
767 }
768
769 #ifdef __sun__
770 /* Once Solaris has openpty(), this is going to be removed. */
771 static int openpty(int *amaster, int *aslave, char *name,
772 struct termios *termp, struct winsize *winp)
773 {
774 const char *slave;
775 int mfd = -1, sfd = -1;
776
777 *amaster = *aslave = -1;
778
779 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
780 if (mfd < 0)
781 goto err;
782
783 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
784 goto err;
785
786 if ((slave = ptsname(mfd)) == NULL)
787 goto err;
788
789 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
790 goto err;
791
792 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
793 (termp != NULL && tcgetattr(sfd, termp) < 0))
794 goto err;
795
796 if (amaster)
797 *amaster = mfd;
798 if (aslave)
799 *aslave = sfd;
800 if (winp)
801 ioctl(sfd, TIOCSWINSZ, winp);
802
803 return 0;
804
805 err:
806 if (sfd != -1)
807 close(sfd);
808 close(mfd);
809 return -1;
810 }
811
812 static void cfmakeraw (struct termios *termios_p)
813 {
814 termios_p->c_iflag &=
815 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
816 termios_p->c_oflag &= ~OPOST;
817 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
818 termios_p->c_cflag &= ~(CSIZE|PARENB);
819 termios_p->c_cflag |= CS8;
820
821 termios_p->c_cc[VMIN] = 0;
822 termios_p->c_cc[VTIME] = 0;
823 }
824 #endif
825
826 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
827 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
828
829 typedef struct {
830 int fd;
831 int connected;
832 int polling;
833 int read_bytes;
834 QEMUTimer *timer;
835 } PtyCharDriver;
836
837 static void pty_chr_update_read_handler(CharDriverState *chr);
838 static void pty_chr_state(CharDriverState *chr, int connected);
839
840 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
841 {
842 PtyCharDriver *s = chr->opaque;
843
844 if (!s->connected) {
845 /* guest sends data, check for (re-)connect */
846 pty_chr_update_read_handler(chr);
847 return 0;
848 }
849 return send_all(s->fd, buf, len);
850 }
851
852 static int pty_chr_read_poll(void *opaque)
853 {
854 CharDriverState *chr = opaque;
855 PtyCharDriver *s = chr->opaque;
856
857 s->read_bytes = qemu_chr_can_read(chr);
858 return s->read_bytes;
859 }
860
861 static void pty_chr_read(void *opaque)
862 {
863 CharDriverState *chr = opaque;
864 PtyCharDriver *s = chr->opaque;
865 int size, len;
866 uint8_t buf[1024];
867
868 len = sizeof(buf);
869 if (len > s->read_bytes)
870 len = s->read_bytes;
871 if (len == 0)
872 return;
873 size = read(s->fd, buf, len);
874 if ((size == -1 && errno == EIO) ||
875 (size == 0)) {
876 pty_chr_state(chr, 0);
877 return;
878 }
879 if (size > 0) {
880 pty_chr_state(chr, 1);
881 qemu_chr_read(chr, buf, size);
882 }
883 }
884
885 static void pty_chr_update_read_handler(CharDriverState *chr)
886 {
887 PtyCharDriver *s = chr->opaque;
888
889 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
890 pty_chr_read, NULL, chr);
891 s->polling = 1;
892 /*
893 * Short timeout here: just need wait long enougth that qemu makes
894 * it through the poll loop once. When reconnected we want a
895 * short timeout so we notice it almost instantly. Otherwise
896 * read() gives us -EIO instantly, making pty_chr_state() reset the
897 * timeout to the normal (much longer) poll interval before the
898 * timer triggers.
899 */
900 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
901 }
902
903 static void pty_chr_state(CharDriverState *chr, int connected)
904 {
905 PtyCharDriver *s = chr->opaque;
906
907 if (!connected) {
908 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
909 s->connected = 0;
910 s->polling = 0;
911 /* (re-)connect poll interval for idle guests: once per second.
912 * We check more frequently in case the guests sends data to
913 * the virtual device linked to our pty. */
914 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
915 } else {
916 if (!s->connected)
917 qemu_chr_reset(chr);
918 s->connected = 1;
919 }
920 }
921
922 static void pty_chr_timer(void *opaque)
923 {
924 struct CharDriverState *chr = opaque;
925 PtyCharDriver *s = chr->opaque;
926
927 if (s->connected)
928 return;
929 if (s->polling) {
930 /* If we arrive here without polling being cleared due
931 * read returning -EIO, then we are (re-)connected */
932 pty_chr_state(chr, 1);
933 return;
934 }
935
936 /* Next poll ... */
937 pty_chr_update_read_handler(chr);
938 }
939
940 static void pty_chr_close(struct CharDriverState *chr)
941 {
942 PtyCharDriver *s = chr->opaque;
943
944 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
945 close(s->fd);
946 qemu_del_timer(s->timer);
947 qemu_free_timer(s->timer);
948 qemu_free(s);
949 qemu_chr_event(chr, CHR_EVENT_CLOSED);
950 }
951
952 static CharDriverState *qemu_chr_open_pty(void)
953 {
954 CharDriverState *chr;
955 PtyCharDriver *s;
956 struct termios tty;
957 int slave_fd, len;
958 #if defined(__OpenBSD__) || defined(__DragonFly__)
959 char pty_name[PATH_MAX];
960 #define q_ptsname(x) pty_name
961 #else
962 char *pty_name = NULL;
963 #define q_ptsname(x) ptsname(x)
964 #endif
965
966 chr = qemu_mallocz(sizeof(CharDriverState));
967 s = qemu_mallocz(sizeof(PtyCharDriver));
968
969 if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) {
970 return NULL;
971 }
972
973 /* Set raw attributes on the pty. */
974 tcgetattr(slave_fd, &tty);
975 cfmakeraw(&tty);
976 tcsetattr(slave_fd, TCSAFLUSH, &tty);
977 close(slave_fd);
978
979 len = strlen(q_ptsname(s->fd)) + 5;
980 chr->filename = qemu_malloc(len);
981 snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
982 fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
983
984 chr->opaque = s;
985 chr->chr_write = pty_chr_write;
986 chr->chr_update_read_handler = pty_chr_update_read_handler;
987 chr->chr_close = pty_chr_close;
988
989 s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
990
991 return chr;
992 }
993
994 static void tty_serial_init(int fd, int speed,
995 int parity, int data_bits, int stop_bits)
996 {
997 struct termios tty;
998 speed_t spd;
999
1000 #if 0
1001 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1002 speed, parity, data_bits, stop_bits);
1003 #endif
1004 tcgetattr (fd, &tty);
1005
1006 #define MARGIN 1.1
1007 if (speed <= 50 * MARGIN)
1008 spd = B50;
1009 else if (speed <= 75 * MARGIN)
1010 spd = B75;
1011 else if (speed <= 300 * MARGIN)
1012 spd = B300;
1013 else if (speed <= 600 * MARGIN)
1014 spd = B600;
1015 else if (speed <= 1200 * MARGIN)
1016 spd = B1200;
1017 else if (speed <= 2400 * MARGIN)
1018 spd = B2400;
1019 else if (speed <= 4800 * MARGIN)
1020 spd = B4800;
1021 else if (speed <= 9600 * MARGIN)
1022 spd = B9600;
1023 else if (speed <= 19200 * MARGIN)
1024 spd = B19200;
1025 else if (speed <= 38400 * MARGIN)
1026 spd = B38400;
1027 else if (speed <= 57600 * MARGIN)
1028 spd = B57600;
1029 else if (speed <= 115200 * MARGIN)
1030 spd = B115200;
1031 else
1032 spd = B115200;
1033
1034 cfsetispeed(&tty, spd);
1035 cfsetospeed(&tty, spd);
1036
1037 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1038 |INLCR|IGNCR|ICRNL|IXON);
1039 tty.c_oflag |= OPOST;
1040 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1041 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1042 switch(data_bits) {
1043 default:
1044 case 8:
1045 tty.c_cflag |= CS8;
1046 break;
1047 case 7:
1048 tty.c_cflag |= CS7;
1049 break;
1050 case 6:
1051 tty.c_cflag |= CS6;
1052 break;
1053 case 5:
1054 tty.c_cflag |= CS5;
1055 break;
1056 }
1057 switch(parity) {
1058 default:
1059 case 'N':
1060 break;
1061 case 'E':
1062 tty.c_cflag |= PARENB;
1063 break;
1064 case 'O':
1065 tty.c_cflag |= PARENB | PARODD;
1066 break;
1067 }
1068 if (stop_bits == 2)
1069 tty.c_cflag |= CSTOPB;
1070
1071 tcsetattr (fd, TCSANOW, &tty);
1072 }
1073
1074 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1075 {
1076 FDCharDriver *s = chr->opaque;
1077
1078 switch(cmd) {
1079 case CHR_IOCTL_SERIAL_SET_PARAMS:
1080 {
1081 QEMUSerialSetParams *ssp = arg;
1082 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1083 ssp->data_bits, ssp->stop_bits);
1084 }
1085 break;
1086 case CHR_IOCTL_SERIAL_SET_BREAK:
1087 {
1088 int enable = *(int *)arg;
1089 if (enable)
1090 tcsendbreak(s->fd_in, 1);
1091 }
1092 break;
1093 case CHR_IOCTL_SERIAL_GET_TIOCM:
1094 {
1095 int sarg = 0;
1096 int *targ = (int *)arg;
1097 ioctl(s->fd_in, TIOCMGET, &sarg);
1098 *targ = 0;
1099 if (sarg & TIOCM_CTS)
1100 *targ |= CHR_TIOCM_CTS;
1101 if (sarg & TIOCM_CAR)
1102 *targ |= CHR_TIOCM_CAR;
1103 if (sarg & TIOCM_DSR)
1104 *targ |= CHR_TIOCM_DSR;
1105 if (sarg & TIOCM_RI)
1106 *targ |= CHR_TIOCM_RI;
1107 if (sarg & TIOCM_DTR)
1108 *targ |= CHR_TIOCM_DTR;
1109 if (sarg & TIOCM_RTS)
1110 *targ |= CHR_TIOCM_RTS;
1111 }
1112 break;
1113 case CHR_IOCTL_SERIAL_SET_TIOCM:
1114 {
1115 int sarg = *(int *)arg;
1116 int targ = 0;
1117 ioctl(s->fd_in, TIOCMGET, &targ);
1118 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1119 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1120 if (sarg & CHR_TIOCM_CTS)
1121 targ |= TIOCM_CTS;
1122 if (sarg & CHR_TIOCM_CAR)
1123 targ |= TIOCM_CAR;
1124 if (sarg & CHR_TIOCM_DSR)
1125 targ |= TIOCM_DSR;
1126 if (sarg & CHR_TIOCM_RI)
1127 targ |= TIOCM_RI;
1128 if (sarg & CHR_TIOCM_DTR)
1129 targ |= TIOCM_DTR;
1130 if (sarg & CHR_TIOCM_RTS)
1131 targ |= TIOCM_RTS;
1132 ioctl(s->fd_in, TIOCMSET, &targ);
1133 }
1134 break;
1135 default:
1136 return -ENOTSUP;
1137 }
1138 return 0;
1139 }
1140
1141 static CharDriverState *qemu_chr_open_tty(const char *filename)
1142 {
1143 CharDriverState *chr;
1144 int fd;
1145
1146 TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
1147 tty_serial_init(fd, 115200, 'N', 8, 1);
1148 chr = qemu_chr_open_fd(fd, fd);
1149 if (!chr) {
1150 close(fd);
1151 return NULL;
1152 }
1153 chr->chr_ioctl = tty_serial_ioctl;
1154 qemu_chr_reset(chr);
1155 return chr;
1156 }
1157 #else /* ! __linux__ && ! __sun__ */
1158 static CharDriverState *qemu_chr_open_pty(void)
1159 {
1160 return NULL;
1161 }
1162 #endif /* __linux__ || __sun__ */
1163
1164 #if defined(__linux__)
1165 typedef struct {
1166 int fd;
1167 int mode;
1168 } ParallelCharDriver;
1169
1170 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1171 {
1172 if (s->mode != mode) {
1173 int m = mode;
1174 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1175 return 0;
1176 s->mode = mode;
1177 }
1178 return 1;
1179 }
1180
1181 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1182 {
1183 ParallelCharDriver *drv = chr->opaque;
1184 int fd = drv->fd;
1185 uint8_t b;
1186
1187 switch(cmd) {
1188 case CHR_IOCTL_PP_READ_DATA:
1189 if (ioctl(fd, PPRDATA, &b) < 0)
1190 return -ENOTSUP;
1191 *(uint8_t *)arg = b;
1192 break;
1193 case CHR_IOCTL_PP_WRITE_DATA:
1194 b = *(uint8_t *)arg;
1195 if (ioctl(fd, PPWDATA, &b) < 0)
1196 return -ENOTSUP;
1197 break;
1198 case CHR_IOCTL_PP_READ_CONTROL:
1199 if (ioctl(fd, PPRCONTROL, &b) < 0)
1200 return -ENOTSUP;
1201 /* Linux gives only the lowest bits, and no way to know data
1202 direction! For better compatibility set the fixed upper
1203 bits. */
1204 *(uint8_t *)arg = b | 0xc0;
1205 break;
1206 case CHR_IOCTL_PP_WRITE_CONTROL:
1207 b = *(uint8_t *)arg;
1208 if (ioctl(fd, PPWCONTROL, &b) < 0)
1209 return -ENOTSUP;
1210 break;
1211 case CHR_IOCTL_PP_READ_STATUS:
1212 if (ioctl(fd, PPRSTATUS, &b) < 0)
1213 return -ENOTSUP;
1214 *(uint8_t *)arg = b;
1215 break;
1216 case CHR_IOCTL_PP_DATA_DIR:
1217 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1218 return -ENOTSUP;
1219 break;
1220 case CHR_IOCTL_PP_EPP_READ_ADDR:
1221 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1222 struct ParallelIOArg *parg = arg;
1223 int n = read(fd, parg->buffer, parg->count);
1224 if (n != parg->count) {
1225 return -EIO;
1226 }
1227 }
1228 break;
1229 case CHR_IOCTL_PP_EPP_READ:
1230 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1231 struct ParallelIOArg *parg = arg;
1232 int n = read(fd, parg->buffer, parg->count);
1233 if (n != parg->count) {
1234 return -EIO;
1235 }
1236 }
1237 break;
1238 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1239 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1240 struct ParallelIOArg *parg = arg;
1241 int n = write(fd, parg->buffer, parg->count);
1242 if (n != parg->count) {
1243 return -EIO;
1244 }
1245 }
1246 break;
1247 case CHR_IOCTL_PP_EPP_WRITE:
1248 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1249 struct ParallelIOArg *parg = arg;
1250 int n = write(fd, parg->buffer, parg->count);
1251 if (n != parg->count) {
1252 return -EIO;
1253 }
1254 }
1255 break;
1256 default:
1257 return -ENOTSUP;
1258 }
1259 return 0;
1260 }
1261
1262 static void pp_close(CharDriverState *chr)
1263 {
1264 ParallelCharDriver *drv = chr->opaque;
1265 int fd = drv->fd;
1266
1267 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1268 ioctl(fd, PPRELEASE);
1269 close(fd);
1270 qemu_free(drv);
1271 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1272 }
1273
1274 static CharDriverState *qemu_chr_open_pp(const char *filename)
1275 {
1276 CharDriverState *chr;
1277 ParallelCharDriver *drv;
1278 int fd;
1279
1280 TFR(fd = open(filename, O_RDWR));
1281 if (fd < 0)
1282 return NULL;
1283
1284 if (ioctl(fd, PPCLAIM) < 0) {
1285 close(fd);
1286 return NULL;
1287 }
1288
1289 drv = qemu_mallocz(sizeof(ParallelCharDriver));
1290 drv->fd = fd;
1291 drv->mode = IEEE1284_MODE_COMPAT;
1292
1293 chr = qemu_mallocz(sizeof(CharDriverState));
1294 chr->chr_write = null_chr_write;
1295 chr->chr_ioctl = pp_ioctl;
1296 chr->chr_close = pp_close;
1297 chr->opaque = drv;
1298
1299 qemu_chr_reset(chr);
1300
1301 return chr;
1302 }
1303 #endif /* __linux__ */
1304
1305 #if defined(__FreeBSD__) || defined(__DragonFly__)
1306 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1307 {
1308 int fd = (int)chr->opaque;
1309 uint8_t b;
1310
1311 switch(cmd) {
1312 case CHR_IOCTL_PP_READ_DATA:
1313 if (ioctl(fd, PPIGDATA, &b) < 0)
1314 return -ENOTSUP;
1315 *(uint8_t *)arg = b;
1316 break;
1317 case CHR_IOCTL_PP_WRITE_DATA:
1318 b = *(uint8_t *)arg;
1319 if (ioctl(fd, PPISDATA, &b) < 0)
1320 return -ENOTSUP;
1321 break;
1322 case CHR_IOCTL_PP_READ_CONTROL:
1323 if (ioctl(fd, PPIGCTRL, &b) < 0)
1324 return -ENOTSUP;
1325 *(uint8_t *)arg = b;
1326 break;
1327 case CHR_IOCTL_PP_WRITE_CONTROL:
1328 b = *(uint8_t *)arg;
1329 if (ioctl(fd, PPISCTRL, &b) < 0)
1330 return -ENOTSUP;
1331 break;
1332 case CHR_IOCTL_PP_READ_STATUS:
1333 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1334 return -ENOTSUP;
1335 *(uint8_t *)arg = b;
1336 break;
1337 default:
1338 return -ENOTSUP;
1339 }
1340 return 0;
1341 }
1342
1343 static CharDriverState *qemu_chr_open_pp(const char *filename)
1344 {
1345 CharDriverState *chr;
1346 int fd;
1347
1348 fd = open(filename, O_RDWR);
1349 if (fd < 0)
1350 return NULL;
1351
1352 chr = qemu_mallocz(sizeof(CharDriverState));
1353 chr->opaque = (void *)fd;
1354 chr->chr_write = null_chr_write;
1355 chr->chr_ioctl = pp_ioctl;
1356 return chr;
1357 }
1358 #endif
1359
1360 #else /* _WIN32 */
1361
1362 typedef struct {
1363 int max_size;
1364 HANDLE hcom, hrecv, hsend;
1365 OVERLAPPED orecv, osend;
1366 BOOL fpipe;
1367 DWORD len;
1368 } WinCharState;
1369
1370 #define NSENDBUF 2048
1371 #define NRECVBUF 2048
1372 #define MAXCONNECT 1
1373 #define NTIMEOUT 5000
1374
1375 static int win_chr_poll(void *opaque);
1376 static int win_chr_pipe_poll(void *opaque);
1377
1378 static void win_chr_close(CharDriverState *chr)
1379 {
1380 WinCharState *s = chr->opaque;
1381
1382 if (s->hsend) {
1383 CloseHandle(s->hsend);
1384 s->hsend = NULL;
1385 }
1386 if (s->hrecv) {
1387 CloseHandle(s->hrecv);
1388 s->hrecv = NULL;
1389 }
1390 if (s->hcom) {
1391 CloseHandle(s->hcom);
1392 s->hcom = NULL;
1393 }
1394 if (s->fpipe)
1395 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1396 else
1397 qemu_del_polling_cb(win_chr_poll, chr);
1398
1399 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1400 }
1401
1402 static int win_chr_init(CharDriverState *chr, const char *filename)
1403 {
1404 WinCharState *s = chr->opaque;
1405 COMMCONFIG comcfg;
1406 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1407 COMSTAT comstat;
1408 DWORD size;
1409 DWORD err;
1410
1411 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1412 if (!s->hsend) {
1413 fprintf(stderr, "Failed CreateEvent\n");
1414 goto fail;
1415 }
1416 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1417 if (!s->hrecv) {
1418 fprintf(stderr, "Failed CreateEvent\n");
1419 goto fail;
1420 }
1421
1422 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1423 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1424 if (s->hcom == INVALID_HANDLE_VALUE) {
1425 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1426 s->hcom = NULL;
1427 goto fail;
1428 }
1429
1430 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1431 fprintf(stderr, "Failed SetupComm\n");
1432 goto fail;
1433 }
1434
1435 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1436 size = sizeof(COMMCONFIG);
1437 GetDefaultCommConfig(filename, &comcfg, &size);
1438 comcfg.dcb.DCBlength = sizeof(DCB);
1439 CommConfigDialog(filename, NULL, &comcfg);
1440
1441 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1442 fprintf(stderr, "Failed SetCommState\n");
1443 goto fail;
1444 }
1445
1446 if (!SetCommMask(s->hcom, EV_ERR)) {
1447 fprintf(stderr, "Failed SetCommMask\n");
1448 goto fail;
1449 }
1450
1451 cto.ReadIntervalTimeout = MAXDWORD;
1452 if (!SetCommTimeouts(s->hcom, &cto)) {
1453 fprintf(stderr, "Failed SetCommTimeouts\n");
1454 goto fail;
1455 }
1456
1457 if (!ClearCommError(s->hcom, &err, &comstat)) {
1458 fprintf(stderr, "Failed ClearCommError\n");
1459 goto fail;
1460 }
1461 qemu_add_polling_cb(win_chr_poll, chr);
1462 return 0;
1463
1464 fail:
1465 win_chr_close(chr);
1466 return -1;
1467 }
1468
1469 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1470 {
1471 WinCharState *s = chr->opaque;
1472 DWORD len, ret, size, err;
1473
1474 len = len1;
1475 ZeroMemory(&s->osend, sizeof(s->osend));
1476 s->osend.hEvent = s->hsend;
1477 while (len > 0) {
1478 if (s->hsend)
1479 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1480 else
1481 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1482 if (!ret) {
1483 err = GetLastError();
1484 if (err == ERROR_IO_PENDING) {
1485 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1486 if (ret) {
1487 buf += size;
1488 len -= size;
1489 } else {
1490 break;
1491 }
1492 } else {
1493 break;
1494 }
1495 } else {
1496 buf += size;
1497 len -= size;
1498 }
1499 }
1500 return len1 - len;
1501 }
1502
1503 static int win_chr_read_poll(CharDriverState *chr)
1504 {
1505 WinCharState *s = chr->opaque;
1506
1507 s->max_size = qemu_chr_can_read(chr);
1508 return s->max_size;
1509 }
1510
1511 static void win_chr_readfile(CharDriverState *chr)
1512 {
1513 WinCharState *s = chr->opaque;
1514 int ret, err;
1515 uint8_t buf[1024];
1516 DWORD size;
1517
1518 ZeroMemory(&s->orecv, sizeof(s->orecv));
1519 s->orecv.hEvent = s->hrecv;
1520 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1521 if (!ret) {
1522 err = GetLastError();
1523 if (err == ERROR_IO_PENDING) {
1524 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1525 }
1526 }
1527
1528 if (size > 0) {
1529 qemu_chr_read(chr, buf, size);
1530 }
1531 }
1532
1533 static void win_chr_read(CharDriverState *chr)
1534 {
1535 WinCharState *s = chr->opaque;
1536
1537 if (s->len > s->max_size)
1538 s->len = s->max_size;
1539 if (s->len == 0)
1540 return;
1541
1542 win_chr_readfile(chr);
1543 }
1544
1545 static int win_chr_poll(void *opaque)
1546 {
1547 CharDriverState *chr = opaque;
1548 WinCharState *s = chr->opaque;
1549 COMSTAT status;
1550 DWORD comerr;
1551
1552 ClearCommError(s->hcom, &comerr, &status);
1553 if (status.cbInQue > 0) {
1554 s->len = status.cbInQue;
1555 win_chr_read_poll(chr);
1556 win_chr_read(chr);
1557 return 1;
1558 }
1559 return 0;
1560 }
1561
1562 static CharDriverState *qemu_chr_open_win(const char *filename)
1563 {
1564 CharDriverState *chr;
1565 WinCharState *s;
1566
1567 chr = qemu_mallocz(sizeof(CharDriverState));
1568 s = qemu_mallocz(sizeof(WinCharState));
1569 chr->opaque = s;
1570 chr->chr_write = win_chr_write;
1571 chr->chr_close = win_chr_close;
1572
1573 if (win_chr_init(chr, filename) < 0) {
1574 free(s);
1575 free(chr);
1576 return NULL;
1577 }
1578 qemu_chr_reset(chr);
1579 return chr;
1580 }
1581
1582 static int win_chr_pipe_poll(void *opaque)
1583 {
1584 CharDriverState *chr = opaque;
1585 WinCharState *s = chr->opaque;
1586 DWORD size;
1587
1588 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1589 if (size > 0) {
1590 s->len = size;
1591 win_chr_read_poll(chr);
1592 win_chr_read(chr);
1593 return 1;
1594 }
1595 return 0;
1596 }
1597
1598 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1599 {
1600 WinCharState *s = chr->opaque;
1601 OVERLAPPED ov;
1602 int ret;
1603 DWORD size;
1604 char openname[256];
1605
1606 s->fpipe = TRUE;
1607
1608 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1609 if (!s->hsend) {
1610 fprintf(stderr, "Failed CreateEvent\n");
1611 goto fail;
1612 }
1613 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1614 if (!s->hrecv) {
1615 fprintf(stderr, "Failed CreateEvent\n");
1616 goto fail;
1617 }
1618
1619 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1620 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1621 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1622 PIPE_WAIT,
1623 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1624 if (s->hcom == INVALID_HANDLE_VALUE) {
1625 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1626 s->hcom = NULL;
1627 goto fail;
1628 }
1629
1630 ZeroMemory(&ov, sizeof(ov));
1631 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1632 ret = ConnectNamedPipe(s->hcom, &ov);
1633 if (ret) {
1634 fprintf(stderr, "Failed ConnectNamedPipe\n");
1635 goto fail;
1636 }
1637
1638 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1639 if (!ret) {
1640 fprintf(stderr, "Failed GetOverlappedResult\n");
1641 if (ov.hEvent) {
1642 CloseHandle(ov.hEvent);
1643 ov.hEvent = NULL;
1644 }
1645 goto fail;
1646 }
1647
1648 if (ov.hEvent) {
1649 CloseHandle(ov.hEvent);
1650 ov.hEvent = NULL;
1651 }
1652 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1653 return 0;
1654
1655 fail:
1656 win_chr_close(chr);
1657 return -1;
1658 }
1659
1660
1661 static CharDriverState *qemu_chr_open_win_pipe(const char *filename)
1662 {
1663 CharDriverState *chr;
1664 WinCharState *s;
1665
1666 chr = qemu_mallocz(sizeof(CharDriverState));
1667 s = qemu_mallocz(sizeof(WinCharState));
1668 chr->opaque = s;
1669 chr->chr_write = win_chr_write;
1670 chr->chr_close = win_chr_close;
1671
1672 if (win_chr_pipe_init(chr, filename) < 0) {
1673 free(s);
1674 free(chr);
1675 return NULL;
1676 }
1677 qemu_chr_reset(chr);
1678 return chr;
1679 }
1680
1681 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1682 {
1683 CharDriverState *chr;
1684 WinCharState *s;
1685
1686 chr = qemu_mallocz(sizeof(CharDriverState));
1687 s = qemu_mallocz(sizeof(WinCharState));
1688 s->hcom = fd_out;
1689 chr->opaque = s;
1690 chr->chr_write = win_chr_write;
1691 qemu_chr_reset(chr);
1692 return chr;
1693 }
1694
1695 static CharDriverState *qemu_chr_open_win_con(const char *filename)
1696 {
1697 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1698 }
1699
1700 static CharDriverState *qemu_chr_open_win_file_out(const char *file_out)
1701 {
1702 HANDLE fd_out;
1703
1704 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1705 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1706 if (fd_out == INVALID_HANDLE_VALUE)
1707 return NULL;
1708
1709 return qemu_chr_open_win_file(fd_out);
1710 }
1711 #endif /* !_WIN32 */
1712
1713 /***********************************************************/
1714 /* UDP Net console */
1715
1716 typedef struct {
1717 int fd;
1718 struct sockaddr_in daddr;
1719 uint8_t buf[1024];
1720 int bufcnt;
1721 int bufptr;
1722 int max_size;
1723 } NetCharDriver;
1724
1725 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1726 {
1727 NetCharDriver *s = chr->opaque;
1728
1729 return sendto(s->fd, (const void *)buf, len, 0,
1730 (struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in));
1731 }
1732
1733 static int udp_chr_read_poll(void *opaque)
1734 {
1735 CharDriverState *chr = opaque;
1736 NetCharDriver *s = chr->opaque;
1737
1738 s->max_size = qemu_chr_can_read(chr);
1739
1740 /* If there were any stray characters in the queue process them
1741 * first
1742 */
1743 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1744 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1745 s->bufptr++;
1746 s->max_size = qemu_chr_can_read(chr);
1747 }
1748 return s->max_size;
1749 }
1750
1751 static void udp_chr_read(void *opaque)
1752 {
1753 CharDriverState *chr = opaque;
1754 NetCharDriver *s = chr->opaque;
1755
1756 if (s->max_size == 0)
1757 return;
1758 s->bufcnt = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
1759 s->bufptr = s->bufcnt;
1760 if (s->bufcnt <= 0)
1761 return;
1762
1763 s->bufptr = 0;
1764 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1765 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1766 s->bufptr++;
1767 s->max_size = qemu_chr_can_read(chr);
1768 }
1769 }
1770
1771 static void udp_chr_update_read_handler(CharDriverState *chr)
1772 {
1773 NetCharDriver *s = chr->opaque;
1774
1775 if (s->fd >= 0) {
1776 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
1777 udp_chr_read, NULL, chr);
1778 }
1779 }
1780
1781 static void udp_chr_close(CharDriverState *chr)
1782 {
1783 NetCharDriver *s = chr->opaque;
1784 if (s->fd >= 0) {
1785 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1786 closesocket(s->fd);
1787 }
1788 qemu_free(s);
1789 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1790 }
1791
1792 static CharDriverState *qemu_chr_open_udp(const char *def)
1793 {
1794 CharDriverState *chr = NULL;
1795 NetCharDriver *s = NULL;
1796 int fd = -1;
1797 struct sockaddr_in saddr;
1798
1799 chr = qemu_mallocz(sizeof(CharDriverState));
1800 s = qemu_mallocz(sizeof(NetCharDriver));
1801
1802 fd = socket(PF_INET, SOCK_DGRAM, 0);
1803 if (fd < 0) {
1804 perror("socket(PF_INET, SOCK_DGRAM)");
1805 goto return_err;
1806 }
1807
1808 if (parse_host_src_port(&s->daddr, &saddr, def) < 0) {
1809 printf("Could not parse: %s\n", def);
1810 goto return_err;
1811 }
1812
1813 if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0)
1814 {
1815 perror("bind");
1816 goto return_err;
1817 }
1818
1819 s->fd = fd;
1820 s->bufcnt = 0;
1821 s->bufptr = 0;
1822 chr->opaque = s;
1823 chr->chr_write = udp_chr_write;
1824 chr->chr_update_read_handler = udp_chr_update_read_handler;
1825 chr->chr_close = udp_chr_close;
1826 return chr;
1827
1828 return_err:
1829 if (chr)
1830 free(chr);
1831 if (s)
1832 free(s);
1833 if (fd >= 0)
1834 closesocket(fd);
1835 return NULL;
1836 }
1837
1838 /***********************************************************/
1839 /* TCP Net console */
1840
1841 typedef struct {
1842 int fd, listen_fd;
1843 int connected;
1844 int max_size;
1845 int do_telnetopt;
1846 int do_nodelay;
1847 int is_unix;
1848 int msgfd;
1849 } TCPCharDriver;
1850
1851 static void tcp_chr_accept(void *opaque);
1852
1853 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1854 {
1855 TCPCharDriver *s = chr->opaque;
1856 if (s->connected) {
1857 return send_all(s->fd, buf, len);
1858 } else {
1859 /* XXX: indicate an error ? */
1860 return len;
1861 }
1862 }
1863
1864 static int tcp_chr_read_poll(void *opaque)
1865 {
1866 CharDriverState *chr = opaque;
1867 TCPCharDriver *s = chr->opaque;
1868 if (!s->connected)
1869 return 0;
1870 s->max_size = qemu_chr_can_read(chr);
1871 return s->max_size;
1872 }
1873
1874 #define IAC 255
1875 #define IAC_BREAK 243
1876 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
1877 TCPCharDriver *s,
1878 uint8_t *buf, int *size)
1879 {
1880 /* Handle any telnet client's basic IAC options to satisfy char by
1881 * char mode with no echo. All IAC options will be removed from
1882 * the buf and the do_telnetopt variable will be used to track the
1883 * state of the width of the IAC information.
1884 *
1885 * IAC commands come in sets of 3 bytes with the exception of the
1886 * "IAC BREAK" command and the double IAC.
1887 */
1888
1889 int i;
1890 int j = 0;
1891
1892 for (i = 0; i < *size; i++) {
1893 if (s->do_telnetopt > 1) {
1894 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
1895 /* Double IAC means send an IAC */
1896 if (j != i)
1897 buf[j] = buf[i];
1898 j++;
1899 s->do_telnetopt = 1;
1900 } else {
1901 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
1902 /* Handle IAC break commands by sending a serial break */
1903 qemu_chr_event(chr, CHR_EVENT_BREAK);
1904 s->do_telnetopt++;
1905 }
1906 s->do_telnetopt++;
1907 }
1908 if (s->do_telnetopt >= 4) {
1909 s->do_telnetopt = 1;
1910 }
1911 } else {
1912 if ((unsigned char)buf[i] == IAC) {
1913 s->do_telnetopt = 2;
1914 } else {
1915 if (j != i)
1916 buf[j] = buf[i];
1917 j++;
1918 }
1919 }
1920 }
1921 *size = j;
1922 }
1923
1924 static int tcp_get_msgfd(CharDriverState *chr)
1925 {
1926 TCPCharDriver *s = chr->opaque;
1927
1928 return s->msgfd;
1929 }
1930
1931 #ifndef _WIN32
1932 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
1933 {
1934 TCPCharDriver *s = chr->opaque;
1935 struct cmsghdr *cmsg;
1936
1937 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
1938 int fd;
1939
1940 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
1941 cmsg->cmsg_level != SOL_SOCKET ||
1942 cmsg->cmsg_type != SCM_RIGHTS)
1943 continue;
1944
1945 fd = *((int *)CMSG_DATA(cmsg));
1946 if (fd < 0)
1947 continue;
1948
1949 if (s->msgfd != -1)
1950 close(s->msgfd);
1951 s->msgfd = fd;
1952 }
1953 }
1954
1955 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
1956 {
1957 TCPCharDriver *s = chr->opaque;
1958 struct msghdr msg = { NULL, };
1959 struct iovec iov[1];
1960 union {
1961 struct cmsghdr cmsg;
1962 char control[CMSG_SPACE(sizeof(int))];
1963 } msg_control;
1964 ssize_t ret;
1965
1966 iov[0].iov_base = buf;
1967 iov[0].iov_len = len;
1968
1969 msg.msg_iov = iov;
1970 msg.msg_iovlen = 1;
1971 msg.msg_control = &msg_control;
1972 msg.msg_controllen = sizeof(msg_control);
1973
1974 ret = recvmsg(s->fd, &msg, 0);
1975 if (ret > 0 && s->is_unix)
1976 unix_process_msgfd(chr, &msg);
1977
1978 return ret;
1979 }
1980 #else
1981 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
1982 {
1983 TCPCharDriver *s = chr->opaque;
1984 return recv(s->fd, buf, len, 0);
1985 }
1986 #endif
1987
1988 static void tcp_chr_read(void *opaque)
1989 {
1990 CharDriverState *chr = opaque;
1991 TCPCharDriver *s = chr->opaque;
1992 uint8_t buf[1024];
1993 int len, size;
1994
1995 if (!s->connected || s->max_size <= 0)
1996 return;
1997 len = sizeof(buf);
1998 if (len > s->max_size)
1999 len = s->max_size;
2000 size = tcp_chr_recv(chr, (void *)buf, len);
2001 if (size == 0) {
2002 /* connection closed */
2003 s->connected = 0;
2004 if (s->listen_fd >= 0) {
2005 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2006 }
2007 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2008 closesocket(s->fd);
2009 s->fd = -1;
2010 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2011 } else if (size > 0) {
2012 if (s->do_telnetopt)
2013 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2014 if (size > 0)
2015 qemu_chr_read(chr, buf, size);
2016 if (s->msgfd != -1) {
2017 close(s->msgfd);
2018 s->msgfd = -1;
2019 }
2020 }
2021 }
2022
2023 static void tcp_chr_connect(void *opaque)
2024 {
2025 CharDriverState *chr = opaque;
2026 TCPCharDriver *s = chr->opaque;
2027
2028 s->connected = 1;
2029 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2030 tcp_chr_read, NULL, chr);
2031 qemu_chr_reset(chr);
2032 }
2033
2034 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2035 static void tcp_chr_telnet_init(int fd)
2036 {
2037 char buf[3];
2038 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2039 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2040 send(fd, (char *)buf, 3, 0);
2041 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2042 send(fd, (char *)buf, 3, 0);
2043 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2044 send(fd, (char *)buf, 3, 0);
2045 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2046 send(fd, (char *)buf, 3, 0);
2047 }
2048
2049 static void socket_set_nodelay(int fd)
2050 {
2051 int val = 1;
2052 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2053 }
2054
2055 static void tcp_chr_accept(void *opaque)
2056 {
2057 CharDriverState *chr = opaque;
2058 TCPCharDriver *s = chr->opaque;
2059 struct sockaddr_in saddr;
2060 #ifndef _WIN32
2061 struct sockaddr_un uaddr;
2062 #endif
2063 struct sockaddr *addr;
2064 socklen_t len;
2065 int fd;
2066
2067 for(;;) {
2068 #ifndef _WIN32
2069 if (s->is_unix) {
2070 len = sizeof(uaddr);
2071 addr = (struct sockaddr *)&uaddr;
2072 } else
2073 #endif
2074 {
2075 len = sizeof(saddr);
2076 addr = (struct sockaddr *)&saddr;
2077 }
2078 fd = accept(s->listen_fd, addr, &len);
2079 if (fd < 0 && errno != EINTR) {
2080 return;
2081 } else if (fd >= 0) {
2082 if (s->do_telnetopt)
2083 tcp_chr_telnet_init(fd);
2084 break;
2085 }
2086 }
2087 socket_set_nonblock(fd);
2088 if (s->do_nodelay)
2089 socket_set_nodelay(fd);
2090 s->fd = fd;
2091 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2092 tcp_chr_connect(chr);
2093 }
2094
2095 static void tcp_chr_close(CharDriverState *chr)
2096 {
2097 TCPCharDriver *s = chr->opaque;
2098 if (s->fd >= 0) {
2099 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2100 closesocket(s->fd);
2101 }
2102 if (s->listen_fd >= 0) {
2103 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2104 closesocket(s->listen_fd);
2105 }
2106 qemu_free(s);
2107 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2108 }
2109
2110 static CharDriverState *qemu_chr_open_tcp(const char *host_str,
2111 int is_telnet,
2112 int is_unix)
2113 {
2114 CharDriverState *chr = NULL;
2115 TCPCharDriver *s = NULL;
2116 int fd = -1, offset = 0;
2117 int is_listen = 0;
2118 int is_waitconnect = 1;
2119 int do_nodelay = 0;
2120 const char *ptr;
2121
2122 ptr = host_str;
2123 while((ptr = strchr(ptr,','))) {
2124 ptr++;
2125 if (!strncmp(ptr,"server",6)) {
2126 is_listen = 1;
2127 } else if (!strncmp(ptr,"nowait",6)) {
2128 is_waitconnect = 0;
2129 } else if (!strncmp(ptr,"nodelay",6)) {
2130 do_nodelay = 1;
2131 } else if (!strncmp(ptr,"to=",3)) {
2132 /* nothing, inet_listen() parses this one */;
2133 } else if (!strncmp(ptr,"ipv4",4)) {
2134 /* nothing, inet_connect() and inet_listen() parse this one */;
2135 } else if (!strncmp(ptr,"ipv6",4)) {
2136 /* nothing, inet_connect() and inet_listen() parse this one */;
2137 } else {
2138 printf("Unknown option: %s\n", ptr);
2139 goto fail;
2140 }
2141 }
2142 if (!is_listen)
2143 is_waitconnect = 0;
2144
2145 chr = qemu_mallocz(sizeof(CharDriverState));
2146 s = qemu_mallocz(sizeof(TCPCharDriver));
2147
2148 if (is_listen) {
2149 chr->filename = qemu_malloc(256);
2150 if (is_unix) {
2151 pstrcpy(chr->filename, 256, "unix:");
2152 } else if (is_telnet) {
2153 pstrcpy(chr->filename, 256, "telnet:");
2154 } else {
2155 pstrcpy(chr->filename, 256, "tcp:");
2156 }
2157 offset = strlen(chr->filename);
2158 }
2159 if (is_unix) {
2160 if (is_listen) {
2161 fd = unix_listen(host_str, chr->filename + offset, 256 - offset);
2162 } else {
2163 fd = unix_connect(host_str);
2164 }
2165 } else {
2166 if (is_listen) {
2167 fd = inet_listen(host_str, chr->filename + offset, 256 - offset,
2168 SOCK_STREAM, 0);
2169 } else {
2170 fd = inet_connect(host_str, SOCK_STREAM);
2171 }
2172 }
2173 if (fd < 0)
2174 goto fail;
2175
2176 if (!is_waitconnect)
2177 socket_set_nonblock(fd);
2178
2179 s->connected = 0;
2180 s->fd = -1;
2181 s->listen_fd = -1;
2182 s->msgfd = -1;
2183 s->is_unix = is_unix;
2184 s->do_nodelay = do_nodelay && !is_unix;
2185
2186 chr->opaque = s;
2187 chr->chr_write = tcp_chr_write;
2188 chr->chr_close = tcp_chr_close;
2189 chr->get_msgfd = tcp_get_msgfd;
2190
2191 if (is_listen) {
2192 s->listen_fd = fd;
2193 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2194 if (is_telnet)
2195 s->do_telnetopt = 1;
2196 } else {
2197 s->connected = 1;
2198 s->fd = fd;
2199 socket_set_nodelay(fd);
2200 tcp_chr_connect(chr);
2201 }
2202
2203 if (is_listen && is_waitconnect) {
2204 printf("QEMU waiting for connection on: %s\n",
2205 chr->filename ? chr->filename : host_str);
2206 tcp_chr_accept(chr);
2207 socket_set_nonblock(s->listen_fd);
2208 }
2209
2210 return chr;
2211 fail:
2212 if (fd >= 0)
2213 closesocket(fd);
2214 qemu_free(s);
2215 qemu_free(chr);
2216 return NULL;
2217 }
2218
2219 CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
2220 {
2221 const char *p;
2222 CharDriverState *chr;
2223
2224 if (!strcmp(filename, "vc")) {
2225 chr = text_console_init(NULL);
2226 } else
2227 if (strstart(filename, "vc:", &p)) {
2228 chr = text_console_init(p);
2229 } else
2230 if (!strcmp(filename, "null")) {
2231 chr = qemu_chr_open_null();
2232 } else
2233 if (strstart(filename, "tcp:", &p)) {
2234 chr = qemu_chr_open_tcp(p, 0, 0);
2235 } else
2236 if (strstart(filename, "telnet:", &p)) {
2237 chr = qemu_chr_open_tcp(p, 1, 0);
2238 } else
2239 if (strstart(filename, "udp:", &p)) {
2240 chr = qemu_chr_open_udp(p);
2241 } else
2242 if (strstart(filename, "mon:", &p)) {
2243 chr = qemu_chr_open(label, p, NULL);
2244 if (chr) {
2245 chr = qemu_chr_open_mux(chr);
2246 monitor_init(chr, MONITOR_USE_READLINE);
2247 } else {
2248 printf("Unable to open driver: %s\n", p);
2249 }
2250 } else if (!strcmp(filename, "msmouse")) {
2251 chr = qemu_chr_open_msmouse();
2252 } else
2253 #ifndef _WIN32
2254 if (strstart(filename, "unix:", &p)) {
2255 chr = qemu_chr_open_tcp(p, 0, 1);
2256 } else if (strstart(filename, "file:", &p)) {
2257 chr = qemu_chr_open_file_out(p);
2258 } else if (strstart(filename, "pipe:", &p)) {
2259 chr = qemu_chr_open_pipe(p);
2260 } else if (!strcmp(filename, "pty")) {
2261 chr = qemu_chr_open_pty();
2262 } else if (!strcmp(filename, "stdio")) {
2263 chr = qemu_chr_open_stdio();
2264 } else
2265 #if defined(__linux__)
2266 if (strstart(filename, "/dev/parport", NULL)) {
2267 chr = qemu_chr_open_pp(filename);
2268 } else
2269 #elif defined(__FreeBSD__) || defined(__DragonFly__)
2270 if (strstart(filename, "/dev/ppi", NULL)) {
2271 chr = qemu_chr_open_pp(filename);
2272 } else
2273 #endif
2274 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2275 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
2276 if (strstart(filename, "/dev/", NULL)) {
2277 chr = qemu_chr_open_tty(filename);
2278 } else
2279 #endif
2280 #else /* !_WIN32 */
2281 if (strstart(filename, "COM", NULL)) {
2282 chr = qemu_chr_open_win(filename);
2283 } else
2284 if (strstart(filename, "pipe:", &p)) {
2285 chr = qemu_chr_open_win_pipe(p);
2286 } else
2287 if (strstart(filename, "con:", NULL)) {
2288 chr = qemu_chr_open_win_con(filename);
2289 } else
2290 if (strstart(filename, "file:", &p)) {
2291 chr = qemu_chr_open_win_file_out(p);
2292 } else
2293 #endif
2294 #ifdef CONFIG_BRLAPI
2295 if (!strcmp(filename, "braille")) {
2296 chr = chr_baum_init();
2297 } else
2298 #endif
2299 {
2300 chr = NULL;
2301 }
2302
2303 if (chr) {
2304 if (!chr->filename)
2305 chr->filename = qemu_strdup(filename);
2306 chr->init = init;
2307 chr->label = qemu_strdup(label);
2308 TAILQ_INSERT_TAIL(&chardevs, chr, next);
2309 }
2310 return chr;
2311 }
2312
2313 void qemu_chr_close(CharDriverState *chr)
2314 {
2315 TAILQ_REMOVE(&chardevs, chr, next);
2316 if (chr->chr_close)
2317 chr->chr_close(chr);
2318 qemu_free(chr->filename);
2319 qemu_free(chr->label);
2320 qemu_free(chr);
2321 }
2322
2323 void qemu_chr_info(Monitor *mon)
2324 {
2325 CharDriverState *chr;
2326
2327 TAILQ_FOREACH(chr, &chardevs, next) {
2328 monitor_printf(mon, "%s: filename=%s\n", chr->label, chr->filename);
2329 }
2330 }
Random patches