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chardev: add stdio support to qapi
[mirror_qemu.git] / qemu-char.c
CommitLineData
6f97dba0
AL		 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"
83c9089e 25#include "monitor/monitor.h"
28ecbaee 26#include "ui/console.h"
9c17d615 27#include "sysemu/sysemu.h"
1de7afc9 28#include "qemu/timer.h"
927d4878 29#include "char/char.h"
cf3ebac7 30#include "hw/usb.h"
c5a415a0 31#include "qmp-commands.h"
6f97dba0
AL		 32
33#include <unistd.h>
34#include <fcntl.h>
6f97dba0
AL		 35#include <time.h>
36#include <errno.h>
37#include <sys/time.h>
38#include <zlib.h>
39
40#ifndef _WIN32
41#include <sys/times.h>
42#include <sys/wait.h>
43#include <termios.h>
44#include <sys/mman.h>
45#include <sys/ioctl.h>
24646c7e 46#include <sys/resource.h>
6f97dba0
AL		 47#include <sys/socket.h>
48#include <netinet/in.h>
24646c7e 49#include <net/if.h>
24646c7e 50#include <arpa/inet.h>
6f97dba0
AL		 51#include <dirent.h>
52#include <netdb.h>
53#include <sys/select.h>
71e72a19 54#ifdef CONFIG_BSD
6f97dba0 55#include <sys/stat.h>
a167ba50
AJ		 56#if defined(__GLIBC__)
57#include <pty.h>
3294ce18
MT		 58#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
59#include <libutil.h>
60#else
61#include <util.h>
a167ba50 62#endif
3294ce18
MT		 63#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
64#include <dev/ppbus/ppi.h>
65#include <dev/ppbus/ppbconf.h>
c5e97233 66#elif defined(__DragonFly__)
c5e97233
BS		 67#include <dev/misc/ppi/ppi.h>
68#include <bus/ppbus/ppbconf.h>
6f97dba0 69#endif
bbe813a2 70#else
6f97dba0 71#ifdef __linux__
6f97dba0
AL		 72#include <pty.h>
73
74#include <linux/ppdev.h>
75#include <linux/parport.h>
76#endif
77#ifdef __sun__
78#include <sys/stat.h>
79#include <sys/ethernet.h>
80#include <sys/sockio.h>
81#include <netinet/arp.h>
82#include <netinet/in.h>
83#include <netinet/in_systm.h>
84#include <netinet/ip.h>
85#include <netinet/ip_icmp.h> // must come after ip.h
86#include <netinet/udp.h>
87#include <netinet/tcp.h>
88#include <net/if.h>
89#include <syslog.h>
90#include <stropts.h>
91#endif
92#endif
93#endif
94
1de7afc9 95#include "qemu/sockets.h"
cbcc6336 96#include "ui/qemu-spice.h"
6f97dba0 97
9bd7854e
AS		 98#define READ_BUF_LEN 4096
99
6f97dba0
AL		 100/***********************************************************/
101/* character device */
102
72cf2d4f
BS		 103static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
104 QTAILQ_HEAD_INITIALIZER(chardevs);
2970a6c9 105
a425d23f 106void qemu_chr_be_event(CharDriverState *s, int event)
6f97dba0 107{
73cdf3f2
AG		 108 /* Keep track if the char device is open */
109 switch (event) {
110 case CHR_EVENT_OPENED:
111 s->opened = 1;
112 break;
113 case CHR_EVENT_CLOSED:
114 s->opened = 0;
115 break;
116 }
117
6f97dba0
AL		 118 if (!s->chr_event)
119 return;
120 s->chr_event(s->handler_opaque, event);
121}
122
9f939df9 123static gboolean qemu_chr_generic_open_bh(gpointer opaque)
6f97dba0
AL		 124{
125 CharDriverState *s = opaque;
a425d23f 126 qemu_chr_be_event(s, CHR_EVENT_OPENED);
9f939df9
AL		 127 s->idle_tag = 0;
128 return FALSE;
6f97dba0
AL		 129}
130
127338e6 131void qemu_chr_generic_open(CharDriverState *s)
6f97dba0 132{
9f939df9
AL		 133 if (s->idle_tag == 0) {
134 s->idle_tag = g_idle_add(qemu_chr_generic_open_bh, s);
6f97dba0
AL		 135 }
136}
137
2cc6e0a1 138int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
6f97dba0
AL		 139{
140 return s->chr_write(s, buf, len);
141}
142
41084f1b 143int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
6f97dba0
AL		 144{
145 if (!s->chr_ioctl)
146 return -ENOTSUP;
147 return s->chr_ioctl(s, cmd, arg);
148}
149
909cda12 150int qemu_chr_be_can_write(CharDriverState *s)
6f97dba0
AL		 151{
152 if (!s->chr_can_read)
153 return 0;
154 return s->chr_can_read(s->handler_opaque);
155}
156
fa5efccb 157void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
6f97dba0 158{
ac310734
SW		 159 if (s->chr_read) {
160 s->chr_read(s->handler_opaque, buf, len);
161 }
6f97dba0
AL		 162}
163
74c0d6f0 164int qemu_chr_fe_get_msgfd(CharDriverState *s)
7d174059
MM		 165{
166 return s->get_msgfd ? s->get_msgfd(s) : -1;
167}
168
13661089
DB		 169int qemu_chr_add_client(CharDriverState *s, int fd)
170{
171 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
172}
173
6f97dba0
AL		 174void qemu_chr_accept_input(CharDriverState *s)
175{
176 if (s->chr_accept_input)
177 s->chr_accept_input(s);
98c8ee1d 178 qemu_notify_event();
6f97dba0
AL		 179}
180
e7e71b0e 181void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
6f97dba0 182{
9bd7854e 183 char buf[READ_BUF_LEN];
6f97dba0
AL		 184 va_list ap;
185 va_start(ap, fmt);
186 vsnprintf(buf, sizeof(buf), fmt, ap);
2cc6e0a1 187 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
6f97dba0
AL		 188 va_end(ap);
189}
190
6f97dba0 191void qemu_chr_add_handlers(CharDriverState *s,
7b27a769 192 IOCanReadHandler *fd_can_read,
6f97dba0
AL		 193 IOReadHandler *fd_read,
194 IOEventHandler *fd_event,
195 void *opaque)
196{
da7d998b 197 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
2d6c1ef4 198 /* chr driver being released. */
d5b27167 199 ++s->avail_connections;
2d6c1ef4 200 }
6f97dba0
AL		 201 s->chr_can_read = fd_can_read;
202 s->chr_read = fd_read;
203 s->chr_event = fd_event;
204 s->handler_opaque = opaque;
205 if (s->chr_update_read_handler)
206 s->chr_update_read_handler(s);
73cdf3f2
AG		 207
208 /* We're connecting to an already opened device, so let's make sure we
209 also get the open event */
210 if (s->opened) {
211 qemu_chr_generic_open(s);
212 }
6f97dba0
AL		 213}
214
215static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
216{
217 return len;
218}
219
80dca9e6 220static CharDriverState *qemu_chr_open_null(void)
6f97dba0
AL		 221{
222 CharDriverState *chr;
223
7267c094 224 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0 225 chr->chr_write = null_chr_write;
1f51470d 226 return chr;
6f97dba0
AL		 227}
228
229/* MUX driver for serial I/O splitting */
6f97dba0
AL		 230#define MAX_MUX 4
231#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
232#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
233typedef struct {
7b27a769 234 IOCanReadHandler *chr_can_read[MAX_MUX];
6f97dba0
AL		 235 IOReadHandler *chr_read[MAX_MUX];
236 IOEventHandler *chr_event[MAX_MUX];
237 void *ext_opaque[MAX_MUX];
238 CharDriverState *drv;
799f1f23 239 int focus;
6f97dba0
AL		 240 int mux_cnt;
241 int term_got_escape;
242 int max_size;
a80bf99f
AL		 243 /* Intermediate input buffer allows to catch escape sequences even if the
244 currently active device is not accepting any input - but only until it
245 is full as well. */
246 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
247 int prod[MAX_MUX];
248 int cons[MAX_MUX];
2d22959d 249 int timestamps;
4ab312f7 250 int linestart;
2d22959d 251 int64_t timestamps_start;
6f97dba0
AL		 252} MuxDriver;
253
254
255static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
256{
257 MuxDriver *d = chr->opaque;
258 int ret;
2d22959d 259 if (!d->timestamps) {
6f97dba0
AL		 260 ret = d->drv->chr_write(d->drv, buf, len);
261 } else {
262 int i;
263
264 ret = 0;
4ab312f7
JK		 265 for (i = 0; i < len; i++) {
266 if (d->linestart) {
6f97dba0
AL		 267 char buf1[64];
268 int64_t ti;
269 int secs;
270
7bd427d8 271 ti = qemu_get_clock_ms(rt_clock);
2d22959d
JK		 272 if (d->timestamps_start == -1)
273 d->timestamps_start = ti;
274 ti -= d->timestamps_start;
a4bb1db8 275 secs = ti / 1000;
6f97dba0
AL		 276 snprintf(buf1, sizeof(buf1),
277 "[%02d:%02d:%02d.%03d] ",
278 secs / 3600,
279 (secs / 60) % 60,
280 secs % 60,
a4bb1db8 281 (int)(ti % 1000));
6f97dba0 282 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
4ab312f7
JK		 283 d->linestart = 0;
284 }
285 ret += d->drv->chr_write(d->drv, buf+i, 1);
286 if (buf[i] == '\n') {
287 d->linestart = 1;
6f97dba0
AL		 288 }
289 }
290 }
291 return ret;
292}
293
294static const char * const mux_help[] = {
295 "% h print this help\n\r",
296 "% x exit emulator\n\r",
297 "% s save disk data back to file (if -snapshot)\n\r",
298 "% t toggle console timestamps\n\r"
299 "% b send break (magic sysrq)\n\r",
300 "% c switch between console and monitor\n\r",
301 "% % sends %\n\r",
302 NULL
303};
304
305int term_escape_char = 0x01; /* ctrl-a is used for escape */
306static void mux_print_help(CharDriverState *chr)
307{
308 int i, j;
309 char ebuf[15] = "Escape-Char";
310 char cbuf[50] = "\n\r";
311
312 if (term_escape_char > 0 && term_escape_char < 26) {
313 snprintf(cbuf, sizeof(cbuf), "\n\r");
314 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
315 } else {
316 snprintf(cbuf, sizeof(cbuf),
317 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
318 term_escape_char);
319 }
320 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
321 for (i = 0; mux_help[i] != NULL; i++) {
322 for (j=0; mux_help[i][j] != '\0'; j++) {
323 if (mux_help[i][j] == '%')
324 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
325 else
326 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
327 }
328 }
329}
330
2724b180
AL		 331static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
332{
333 if (d->chr_event[mux_nr])
334 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
335}
336
6f97dba0
AL		 337static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
338{
339 if (d->term_got_escape) {
340 d->term_got_escape = 0;
341 if (ch == term_escape_char)
342 goto send_char;
343 switch(ch) {
344 case '?':
345 case 'h':
346 mux_print_help(chr);
347 break;
348 case 'x':
349 {
350 const char *term = "QEMU: Terminated\n\r";
351 chr->chr_write(chr,(uint8_t *)term,strlen(term));
352 exit(0);
353 break;
354 }
355 case 's':
6ab4b5ab 356 bdrv_commit_all();
6f97dba0
AL		 357 break;
358 case 'b':
a425d23f 359 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 360 break;
361 case 'c':
362 /* Switch to the next registered device */
799f1f23
GH		 363 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
364 d->focus++;
365 if (d->focus >= d->mux_cnt)
366 d->focus = 0;
367 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
6f97dba0 368 break;
2d22959d
JK		 369 case 't':
370 d->timestamps = !d->timestamps;
371 d->timestamps_start = -1;
4ab312f7 372 d->linestart = 0;
2d22959d 373 break;
6f97dba0
AL		 374 }
375 } else if (ch == term_escape_char) {
376 d->term_got_escape = 1;
377 } else {
378 send_char:
379 return 1;
380 }
381 return 0;
382}
383
384static void mux_chr_accept_input(CharDriverState *chr)
385{
6f97dba0 386 MuxDriver *d = chr->opaque;
799f1f23 387 int m = d->focus;
6f97dba0 388
a80bf99f 389 while (d->prod[m] != d->cons[m] &&
6f97dba0
AL		 390 d->chr_can_read[m] &&
391 d->chr_can_read[m](d->ext_opaque[m])) {
392 d->chr_read[m](d->ext_opaque[m],
a80bf99f 393 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
6f97dba0
AL		 394 }
395}
396
397static int mux_chr_can_read(void *opaque)
398{
399 CharDriverState *chr = opaque;
400 MuxDriver *d = chr->opaque;
799f1f23 401 int m = d->focus;
6f97dba0 402
a80bf99f 403 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
6f97dba0 404 return 1;
a80bf99f
AL		 405 if (d->chr_can_read[m])
406 return d->chr_can_read[m](d->ext_opaque[m]);
6f97dba0
AL		 407 return 0;
408}
409
410static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
411{
412 CharDriverState *chr = opaque;
413 MuxDriver *d = chr->opaque;
799f1f23 414 int m = d->focus;
6f97dba0
AL		 415 int i;
416
417 mux_chr_accept_input (opaque);
418
419 for(i = 0; i < size; i++)
420 if (mux_proc_byte(chr, d, buf[i])) {
a80bf99f 421 if (d->prod[m] == d->cons[m] &&
6f97dba0
AL		 422 d->chr_can_read[m] &&
423 d->chr_can_read[m](d->ext_opaque[m]))
424 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
425 else
a80bf99f 426 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
6f97dba0
AL		 427 }
428}
429
430static void mux_chr_event(void *opaque, int event)
431{
432 CharDriverState *chr = opaque;
433 MuxDriver *d = chr->opaque;
434 int i;
435
436 /* Send the event to all registered listeners */
437 for (i = 0; i < d->mux_cnt; i++)
2724b180 438 mux_chr_send_event(d, i, event);
6f97dba0
AL		 439}
440
441static void mux_chr_update_read_handler(CharDriverState *chr)
442{
443 MuxDriver *d = chr->opaque;
444
445 if (d->mux_cnt >= MAX_MUX) {
446 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
447 return;
448 }
449 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
450 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
451 d->chr_read[d->mux_cnt] = chr->chr_read;
452 d->chr_event[d->mux_cnt] = chr->chr_event;
453 /* Fix up the real driver with mux routines */
454 if (d->mux_cnt == 0) {
455 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
456 mux_chr_event, chr);
457 }
799f1f23
GH		 458 if (d->focus != -1) {
459 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
a7aec5da 460 }
799f1f23 461 d->focus = d->mux_cnt;
6f97dba0 462 d->mux_cnt++;
799f1f23 463 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
6f97dba0
AL		 464}
465
466static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
467{
468 CharDriverState *chr;
469 MuxDriver *d;
470
7267c094
AL		 471 chr = g_malloc0(sizeof(CharDriverState));
472 d = g_malloc0(sizeof(MuxDriver));
6f97dba0
AL		 473
474 chr->opaque = d;
475 d->drv = drv;
799f1f23 476 d->focus = -1;
6f97dba0
AL		 477 chr->chr_write = mux_chr_write;
478 chr->chr_update_read_handler = mux_chr_update_read_handler;
479 chr->chr_accept_input = mux_chr_accept_input;
7c32c4fe
HG		 480 /* Frontend guest-open / -close notification is not support with muxes */
481 chr->chr_guest_open = NULL;
482 chr->chr_guest_close = NULL;
73cdf3f2
AG		 483
484 /* Muxes are always open on creation */
485 qemu_chr_generic_open(chr);
486
6f97dba0
AL		 487 return chr;
488}
489
490
491#ifdef _WIN32
d247d25f 492int send_all(int fd, const void *buf, int len1)
6f97dba0
AL		 493{
494 int ret, len;
495
496 len = len1;
497 while (len > 0) {
498 ret = send(fd, buf, len, 0);
499 if (ret < 0) {
6f97dba0
AL		 500 errno = WSAGetLastError();
501 if (errno != WSAEWOULDBLOCK) {
502 return -1;
503 }
504 } else if (ret == 0) {
505 break;
506 } else {
507 buf += ret;
508 len -= ret;
509 }
510 }
511 return len1 - len;
512}
513
514#else
515
5fc9cfed 516int send_all(int fd, const void *_buf, int len1)
6f97dba0
AL		 517{
518 int ret, len;
5fc9cfed 519 const uint8_t *buf = _buf;
6f97dba0
AL		 520
521 len = len1;
522 while (len > 0) {
523 ret = write(fd, buf, len);
524 if (ret < 0) {
525 if (errno != EINTR && errno != EAGAIN)
526 return -1;
527 } else if (ret == 0) {
528 break;
529 } else {
530 buf += ret;
531 len -= ret;
532 }
533 }
534 return len1 - len;
535}
4549a8b7
SB		 536
537int recv_all(int fd, void *_buf, int len1, bool single_read)
538{
539 int ret, len;
540 uint8_t *buf = _buf;
541
542 len = len1;
543 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
544 if (ret < 0) {
545 if (errno != EINTR && errno != EAGAIN) {
546 return -1;
547 }
548 continue;
549 } else {
550 if (single_read) {
551 return ret;
552 }
553 buf += ret;
554 len -= ret;
555 }
556 }
557 return len1 - len;
558}
559
6f97dba0
AL		 560#endif /* !_WIN32 */
561
96c63847
AL		 562typedef struct IOWatchPoll
563{
564 GSource *src;
565 int max_size;
566
567 IOCanReadHandler *fd_can_read;
568 void *opaque;
569
570 QTAILQ_ENTRY(IOWatchPoll) node;
571} IOWatchPoll;
572
573static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
574 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
575
576static IOWatchPoll *io_watch_poll_from_source(GSource *source)
577{
578 IOWatchPoll *i;
579
580 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
581 if (i->src == source) {
582 return i;
583 }
584 }
585
586 return NULL;
587}
588
589static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
590{
591 IOWatchPoll *iwp = io_watch_poll_from_source(source);
592
593 iwp->max_size = iwp->fd_can_read(iwp->opaque);
594 if (iwp->max_size == 0) {
595 return FALSE;
596 }
597
598 return g_io_watch_funcs.prepare(source, timeout_);
599}
600
601static gboolean io_watch_poll_check(GSource *source)
602{
603 IOWatchPoll *iwp = io_watch_poll_from_source(source);
604
605 if (iwp->max_size == 0) {
606 return FALSE;
607 }
608
609 return g_io_watch_funcs.check(source);
610}
611
612static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
613 gpointer user_data)
614{
615 return g_io_watch_funcs.dispatch(source, callback, user_data);
616}
617
618static void io_watch_poll_finalize(GSource *source)
619{
620 IOWatchPoll *iwp = io_watch_poll_from_source(source);
621 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
622 g_io_watch_funcs.finalize(source);
623}
624
625static GSourceFuncs io_watch_poll_funcs = {
626 .prepare = io_watch_poll_prepare,
627 .check = io_watch_poll_check,
628 .dispatch = io_watch_poll_dispatch,
629 .finalize = io_watch_poll_finalize,
630};
631
632/* Can only be used for read */
633static guint io_add_watch_poll(GIOChannel *channel,
634 IOCanReadHandler *fd_can_read,
635 GIOFunc fd_read,
636 gpointer user_data)
637{
638 IOWatchPoll *iwp;
639 GSource *src;
640 guint tag;
641
642 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
643 g_source_set_funcs(src, &io_watch_poll_funcs);
644 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
645 tag = g_source_attach(src, NULL);
646 g_source_unref(src);
647
648 iwp = g_malloc0(sizeof(*iwp));
649 iwp->src = src;
650 iwp->max_size = 0;
651 iwp->fd_can_read = fd_can_read;
652 iwp->opaque = user_data;
653
654 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
655
656 return tag;
657}
658
44ab9ed4 659#ifndef _WIN32
96c63847
AL		 660static GIOChannel *io_channel_from_fd(int fd)
661{
662 GIOChannel *chan;
663
664 if (fd == -1) {
665 return NULL;
666 }
667
668 chan = g_io_channel_unix_new(fd);
669
670 g_io_channel_set_encoding(chan, NULL, NULL);
671 g_io_channel_set_buffered(chan, FALSE);
672
673 return chan;
674}
44ab9ed4 675#endif
96c63847 676
76a9644b
AL		 677static GIOChannel *io_channel_from_socket(int fd)
678{
679 GIOChannel *chan;
680
681 if (fd == -1) {
682 return NULL;
683 }
684
685#ifdef _WIN32
686 chan = g_io_channel_win32_new_socket(fd);
687#else
688 chan = g_io_channel_unix_new(fd);
689#endif
690
691 g_io_channel_set_encoding(chan, NULL, NULL);
692 g_io_channel_set_buffered(chan, FALSE);
693
694 return chan;
695}
696
96c63847
AL		 697static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
698{
699 GIOStatus status;
700 gsize bytes_written;
701 int len;
702 const uint8_t *buf = _buf;
703
704 len = len1;
705 while (len > 0) {
706 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
707 &bytes_written, NULL);
708 if (status != G_IO_STATUS_NORMAL) {
23673ca7
AL		 709 if (status == G_IO_STATUS_AGAIN) {
710 errno = EAGAIN;
711 return -1;
712 } else {
713 errno = EINVAL;
96c63847
AL		 714 return -1;
715 }
716 } else if (status == G_IO_STATUS_EOF) {
717 break;
718 } else {
719 buf += bytes_written;
720 len -= bytes_written;
721 }
722 }
723 return len1 - len;
724}
96c63847 725
44ab9ed4
BS		 726#ifndef _WIN32
727
a29753f8
AL		 728typedef struct FDCharDriver {
729 CharDriverState *chr;
730 GIOChannel *fd_in, *fd_out;
731 guint fd_in_tag;
6f97dba0 732 int max_size;
a29753f8 733 QTAILQ_ENTRY(FDCharDriver) node;
6f97dba0
AL		 734} FDCharDriver;
735
6f97dba0
AL		 736static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
737{
738 FDCharDriver *s = chr->opaque;
a29753f8
AL		 739
740 return io_channel_send_all(s->fd_out, buf, len);
6f97dba0
AL		 741}
742
a29753f8 743static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 744{
745 CharDriverState *chr = opaque;
746 FDCharDriver *s = chr->opaque;
a29753f8 747 int len;
9bd7854e 748 uint8_t buf[READ_BUF_LEN];
a29753f8
AL		 749 GIOStatus status;
750 gsize bytes_read;
6f97dba0
AL		 751
752 len = sizeof(buf);
a29753f8 753 if (len > s->max_size) {
6f97dba0 754 len = s->max_size;
a29753f8
AL		 755 }
756 if (len == 0) {
757 return FALSE;
758 }
759
760 status = g_io_channel_read_chars(chan, (gchar *)buf,
761 len, &bytes_read, NULL);
762 if (status == G_IO_STATUS_EOF) {
a425d23f 763 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
a29753f8 764 return FALSE;
6f97dba0 765 }
a29753f8
AL		 766 if (status == G_IO_STATUS_NORMAL) {
767 qemu_chr_be_write(chr, buf, bytes_read);
6f97dba0 768 }
a29753f8
AL		 769
770 return TRUE;
771}
772
773static int fd_chr_read_poll(void *opaque)
774{
775 CharDriverState *chr = opaque;
776 FDCharDriver *s = chr->opaque;
777
778 s->max_size = qemu_chr_be_can_write(chr);
779 return s->max_size;
6f97dba0
AL		 780}
781
23673ca7
AL		 782static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
783{
784 FDCharDriver *s = chr->opaque;
785 return g_io_create_watch(s->fd_out, cond);
786}
787
6f97dba0
AL		 788static void fd_chr_update_read_handler(CharDriverState *chr)
789{
790 FDCharDriver *s = chr->opaque;
791
a29753f8
AL		 792 if (s->fd_in_tag) {
793 g_source_remove(s->fd_in_tag);
794 }
795
796 if (s->fd_in) {
797 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
6f97dba0
AL		 798 }
799}
800
801static void fd_chr_close(struct CharDriverState *chr)
802{
803 FDCharDriver *s = chr->opaque;
804
a29753f8
AL		 805 if (s->fd_in_tag) {
806 g_source_remove(s->fd_in_tag);
807 s->fd_in_tag = 0;
808 }
809
810 if (s->fd_in) {
811 g_io_channel_unref(s->fd_in);
812 }
813 if (s->fd_out) {
814 g_io_channel_unref(s->fd_out);
6f97dba0
AL		 815 }
816
7267c094 817 g_free(s);
a425d23f 818 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 819}
820
821/* open a character device to a unix fd */
822static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
823{
824 CharDriverState *chr;
825 FDCharDriver *s;
826
7267c094
AL		 827 chr = g_malloc0(sizeof(CharDriverState));
828 s = g_malloc0(sizeof(FDCharDriver));
a29753f8
AL		 829 s->fd_in = io_channel_from_fd(fd_in);
830 s->fd_out = io_channel_from_fd(fd_out);
23673ca7 831 fcntl(fd_out, F_SETFL, O_NONBLOCK);
a29753f8 832 s->chr = chr;
6f97dba0 833 chr->opaque = s;
23673ca7 834 chr->chr_add_watch = fd_chr_add_watch;
6f97dba0
AL		 835 chr->chr_write = fd_chr_write;
836 chr->chr_update_read_handler = fd_chr_update_read_handler;
837 chr->chr_close = fd_chr_close;
838
127338e6 839 qemu_chr_generic_open(chr);
6f97dba0
AL		 840
841 return chr;
842}
843
1f51470d 844static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
6f97dba0
AL		 845{
846 int fd_in, fd_out;
847 char filename_in[256], filename_out[256];
7d31544f
GH		 848 const char *filename = qemu_opt_get(opts, "path");
849
850 if (filename == NULL) {
851 fprintf(stderr, "chardev: pipe: no filename given\n");
1f51470d 852 return NULL;
7d31544f 853 }
6f97dba0
AL		 854
855 snprintf(filename_in, 256, "%s.in", filename);
856 snprintf(filename_out, 256, "%s.out", filename);
40ff6d7e
KW		 857 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
858 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
6f97dba0
AL		 859 if (fd_in < 0 || fd_out < 0) {
860 if (fd_in >= 0)
861 close(fd_in);
862 if (fd_out >= 0)
863 close(fd_out);
b181e047 864 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
a89dd6c3 865 if (fd_in < 0) {
1f51470d 866 return NULL;
a89dd6c3 867 }
6f97dba0 868 }
1f51470d 869 return qemu_chr_open_fd(fd_in, fd_out);
6f97dba0
AL		 870}
871
6f97dba0
AL		 872/* init terminal so that we can grab keys */
873static struct termios oldtty;
874static int old_fd0_flags;
bb002513 875static bool stdio_allow_signal;
6f97dba0
AL		 876
877static void term_exit(void)
878{
879 tcsetattr (0, TCSANOW, &oldtty);
880 fcntl(0, F_SETFL, old_fd0_flags);
881}
882
bb002513 883static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
6f97dba0
AL		 884{
885 struct termios tty;
886
0369364b 887 tty = oldtty;
bb002513
PB		 888 if (!echo) {
889 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
6f97dba0 890 |INLCR|IGNCR|ICRNL|IXON);
bb002513
PB		 891 tty.c_oflag |= OPOST;
892 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
893 tty.c_cflag &= ~(CSIZE|PARENB);
894 tty.c_cflag |= CS8;
895 tty.c_cc[VMIN] = 1;
896 tty.c_cc[VTIME] = 0;
897 }
6f97dba0 898 /* if graphical mode, we allow Ctrl-C handling */
bb002513 899 if (!stdio_allow_signal)
6f97dba0 900 tty.c_lflag &= ~ISIG;
6f97dba0
AL		 901
902 tcsetattr (0, TCSANOW, &tty);
6f97dba0
AL		 903}
904
905static void qemu_chr_close_stdio(struct CharDriverState *chr)
906{
907 term_exit();
6f97dba0
AL		 908 fd_chr_close(chr);
909}
910
7c358031 911static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
6f97dba0
AL		 912{
913 CharDriverState *chr;
914
ab51b1d5
MT		 915 if (is_daemonized()) {
916 error_report("cannot use stdio with -daemonize");
917 return NULL;
918 }
ed7a1540
AL		 919 old_fd0_flags = fcntl(0, F_GETFL);
920 tcgetattr (0, &oldtty);
921 fcntl(0, F_SETFL, O_NONBLOCK);
922 atexit(term_exit);
0369364b 923
6f97dba0
AL		 924 chr = qemu_chr_open_fd(0, 1);
925 chr->chr_close = qemu_chr_close_stdio;
bb002513 926 chr->chr_set_echo = qemu_chr_set_echo_stdio;
7c358031
GH		 927 stdio_allow_signal = display_type != DT_NOGRAPHIC;
928 if (opts->has_signal) {
929 stdio_allow_signal = opts->signal;
930 }
15f31519 931 qemu_chr_fe_set_echo(chr, false);
6f97dba0 932
1f51470d 933 return chr;
6f97dba0
AL		 934}
935
936#ifdef __sun__
937/* Once Solaris has openpty(), this is going to be removed. */
3f4cb3d3
BS		 938static int openpty(int *amaster, int *aslave, char *name,
939 struct termios *termp, struct winsize *winp)
6f97dba0
AL		 940{
941 const char *slave;
942 int mfd = -1, sfd = -1;
943
944 *amaster = *aslave = -1;
945
946 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
947 if (mfd < 0)
948 goto err;
949
950 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
951 goto err;
952
953 if ((slave = ptsname(mfd)) == NULL)
954 goto err;
955
956 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
957 goto err;
958
959 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
960 (termp != NULL && tcgetattr(sfd, termp) < 0))
961 goto err;
962
963 if (amaster)
964 *amaster = mfd;
965 if (aslave)
966 *aslave = sfd;
967 if (winp)
968 ioctl(sfd, TIOCSWINSZ, winp);
969
970 return 0;
971
972err:
973 if (sfd != -1)
974 close(sfd);
975 close(mfd);
976 return -1;
977}
978
3f4cb3d3 979static void cfmakeraw (struct termios *termios_p)
6f97dba0
AL		 980{
981 termios_p->c_iflag &=
982 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
983 termios_p->c_oflag &= ~OPOST;
984 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
985 termios_p->c_cflag &= ~(CSIZE|PARENB);
986 termios_p->c_cflag |= CS8;
987
988 termios_p->c_cc[VMIN] = 0;
989 termios_p->c_cc[VTIME] = 0;
990}
991#endif
992
993#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
a167ba50
AJ		 994 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
995 || defined(__GLIBC__)
6f97dba0 996
e551498e
GH		 997#define HAVE_CHARDEV_TTY 1
998
6f97dba0 999typedef struct {
093d3a20
AL		 1000 GIOChannel *fd;
1001 guint fd_tag;
6f97dba0
AL		 1002 int connected;
1003 int polling;
1004 int read_bytes;
8aa33caf 1005 guint timer_tag;
6f97dba0
AL		 1006} PtyCharDriver;
1007
1008static void pty_chr_update_read_handler(CharDriverState *chr);
1009static void pty_chr_state(CharDriverState *chr, int connected);
1010
8aa33caf
AL		 1011static gboolean pty_chr_timer(gpointer opaque)
1012{
1013 struct CharDriverState *chr = opaque;
1014 PtyCharDriver *s = chr->opaque;
1015
1016 if (s->connected) {
1017 goto out;
1018 }
1019 if (s->polling) {
1020 /* If we arrive here without polling being cleared due
1021 * read returning -EIO, then we are (re-)connected */
1022 pty_chr_state(chr, 1);
1023 goto out;
1024 }
1025
1026 /* Next poll ... */
1027 pty_chr_update_read_handler(chr);
1028
1029out:
1030 return FALSE;
1031}
1032
1033static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1034{
1035 PtyCharDriver *s = chr->opaque;
1036
1037 if (s->timer_tag) {
1038 g_source_remove(s->timer_tag);
1039 s->timer_tag = 0;
1040 }
1041
1042 if (ms == 1000) {
1043 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1044 } else {
1045 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1046 }
1047}
1048
6f97dba0
AL		 1049static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1050{
1051 PtyCharDriver *s = chr->opaque;
1052
1053 if (!s->connected) {
1054 /* guest sends data, check for (re-)connect */
1055 pty_chr_update_read_handler(chr);
1056 return 0;
1057 }
093d3a20 1058 return io_channel_send_all(s->fd, buf, len);
6f97dba0
AL		 1059}
1060
e6a87ed8
AL		 1061static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1062{
1063 PtyCharDriver *s = chr->opaque;
1064 return g_io_create_watch(s->fd, cond);
1065}
1066
6f97dba0
AL		 1067static int pty_chr_read_poll(void *opaque)
1068{
1069 CharDriverState *chr = opaque;
1070 PtyCharDriver *s = chr->opaque;
1071
909cda12 1072 s->read_bytes = qemu_chr_be_can_write(chr);
6f97dba0
AL		 1073 return s->read_bytes;
1074}
1075
093d3a20 1076static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 1077{
1078 CharDriverState *chr = opaque;
1079 PtyCharDriver *s = chr->opaque;
093d3a20 1080 gsize size, len;
9bd7854e 1081 uint8_t buf[READ_BUF_LEN];
093d3a20 1082 GIOStatus status;
6f97dba0
AL		 1083
1084 len = sizeof(buf);
1085 if (len > s->read_bytes)
1086 len = s->read_bytes;
1087 if (len == 0)
093d3a20
AL		 1088 return FALSE;
1089 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1090 if (status != G_IO_STATUS_NORMAL) {
6f97dba0 1091 pty_chr_state(chr, 0);
093d3a20
AL		 1092 return FALSE;
1093 } else {
6f97dba0 1094 pty_chr_state(chr, 1);
fa5efccb 1095 qemu_chr_be_write(chr, buf, size);
6f97dba0 1096 }
093d3a20 1097 return TRUE;
6f97dba0
AL		 1098}
1099
1100static void pty_chr_update_read_handler(CharDriverState *chr)
1101{
1102 PtyCharDriver *s = chr->opaque;
1103
093d3a20
AL		 1104 if (s->fd_tag) {
1105 g_source_remove(s->fd_tag);
1106 }
1107
1108 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
6f97dba0
AL		 1109 s->polling = 1;
1110 /*
1111 * Short timeout here: just need wait long enougth that qemu makes
1112 * it through the poll loop once. When reconnected we want a
1113 * short timeout so we notice it almost instantly. Otherwise
1114 * read() gives us -EIO instantly, making pty_chr_state() reset the
1115 * timeout to the normal (much longer) poll interval before the
1116 * timer triggers.
1117 */
8aa33caf 1118 pty_chr_rearm_timer(chr, 10);
6f97dba0
AL		 1119}
1120
1121static void pty_chr_state(CharDriverState *chr, int connected)
1122{
1123 PtyCharDriver *s = chr->opaque;
1124
1125 if (!connected) {
093d3a20
AL		 1126 g_source_remove(s->fd_tag);
1127 s->fd_tag = 0;
6f97dba0
AL		 1128 s->connected = 0;
1129 s->polling = 0;
1130 /* (re-)connect poll interval for idle guests: once per second.
1131 * We check more frequently in case the guests sends data to
1132 * the virtual device linked to our pty. */
8aa33caf 1133 pty_chr_rearm_timer(chr, 1000);
6f97dba0
AL		 1134 } else {
1135 if (!s->connected)
127338e6 1136 qemu_chr_generic_open(chr);
6f97dba0
AL		 1137 s->connected = 1;
1138 }
1139}
1140
6f97dba0
AL		 1141
1142static void pty_chr_close(struct CharDriverState *chr)
1143{
1144 PtyCharDriver *s = chr->opaque;
093d3a20 1145 int fd;
6f97dba0 1146
093d3a20
AL		 1147 if (s->fd_tag) {
1148 g_source_remove(s->fd_tag);
1149 }
1150 fd = g_io_channel_unix_get_fd(s->fd);
1151 g_io_channel_unref(s->fd);
1152 close(fd);
8aa33caf
AL		 1153 if (s->timer_tag) {
1154 g_source_remove(s->timer_tag);
1155 }
7267c094 1156 g_free(s);
a425d23f 1157 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1158}
1159
1f51470d 1160static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
6f97dba0
AL		 1161{
1162 CharDriverState *chr;
1163 PtyCharDriver *s;
1164 struct termios tty;
58650218 1165 const char *label;
a4e26048 1166 int master_fd, slave_fd, len;
c5e97233 1167#if defined(__OpenBSD__) || defined(__DragonFly__)
6f97dba0
AL		 1168 char pty_name[PATH_MAX];
1169#define q_ptsname(x) pty_name
1170#else
1171 char *pty_name = NULL;
1172#define q_ptsname(x) ptsname(x)
1173#endif
1174
a4e26048 1175 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1f51470d 1176 return NULL;
6f97dba0
AL		 1177 }
1178
1179 /* Set raw attributes on the pty. */
c3b972c3 1180 tcgetattr(slave_fd, &tty);
6f97dba0
AL		 1181 cfmakeraw(&tty);
1182 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1183 close(slave_fd);
1184
a4e26048
MA		 1185 chr = g_malloc0(sizeof(CharDriverState));
1186
1187 len = strlen(q_ptsname(master_fd)) + 5;
7267c094 1188 chr->filename = g_malloc(len);
a4e26048
MA		 1189 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1190 qemu_opt_set(opts, "path", q_ptsname(master_fd));
58650218
LL		 1191
1192 label = qemu_opts_id(opts);
25bbf61e
GH		 1193 fprintf(stderr, "char device redirected to %s%s%s%s\n",
1194 q_ptsname(master_fd),
1195 label ? " (label " : "",
1196 label ? label : "",
1197 label ? ")" : "");
6f97dba0 1198
a4e26048 1199 s = g_malloc0(sizeof(PtyCharDriver));
6f97dba0
AL		 1200 chr->opaque = s;
1201 chr->chr_write = pty_chr_write;
1202 chr->chr_update_read_handler = pty_chr_update_read_handler;
1203 chr->chr_close = pty_chr_close;
e6a87ed8 1204 chr->chr_add_watch = pty_chr_add_watch;
6f97dba0 1205
093d3a20 1206 s->fd = io_channel_from_fd(master_fd);
8aa33caf 1207 s->timer_tag = 0;
6f97dba0 1208
1f51470d 1209 return chr;
6f97dba0
AL		 1210}
1211
1212static void tty_serial_init(int fd, int speed,
1213 int parity, int data_bits, int stop_bits)
1214{
1215 struct termios tty;
1216 speed_t spd;
1217
1218#if 0
1219 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1220 speed, parity, data_bits, stop_bits);
1221#endif
1222 tcgetattr (fd, &tty);
1223
45eea13b
SW		 1224#define check_speed(val) if (speed <= val) { spd = B##val; break; }
1225 speed = speed * 10 / 11;
1226 do {
1227 check_speed(50);
1228 check_speed(75);
1229 check_speed(110);
1230 check_speed(134);
1231 check_speed(150);
1232 check_speed(200);
1233 check_speed(300);
1234 check_speed(600);
1235 check_speed(1200);
1236 check_speed(1800);
1237 check_speed(2400);
1238 check_speed(4800);
1239 check_speed(9600);
1240 check_speed(19200);
1241 check_speed(38400);
1242 /* Non-Posix values follow. They may be unsupported on some systems. */
1243 check_speed(57600);
1244 check_speed(115200);
1245#ifdef B230400
1246 check_speed(230400);
1247#endif
1248#ifdef B460800
1249 check_speed(460800);
1250#endif
1251#ifdef B500000
1252 check_speed(500000);
1253#endif
1254#ifdef B576000
1255 check_speed(576000);
1256#endif
1257#ifdef B921600
1258 check_speed(921600);
1259#endif
1260#ifdef B1000000
1261 check_speed(1000000);
1262#endif
1263#ifdef B1152000
1264 check_speed(1152000);
1265#endif
1266#ifdef B1500000
1267 check_speed(1500000);
1268#endif
1269#ifdef B2000000
1270 check_speed(2000000);
1271#endif
1272#ifdef B2500000
1273 check_speed(2500000);
1274#endif
1275#ifdef B3000000
1276 check_speed(3000000);
1277#endif
1278#ifdef B3500000
1279 check_speed(3500000);
1280#endif
1281#ifdef B4000000
1282 check_speed(4000000);
1283#endif
6f97dba0 1284 spd = B115200;
45eea13b 1285 } while (0);
6f97dba0
AL		 1286
1287 cfsetispeed(&tty, spd);
1288 cfsetospeed(&tty, spd);
1289
1290 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1291 |INLCR|IGNCR|ICRNL|IXON);
1292 tty.c_oflag |= OPOST;
1293 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1294 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1295 switch(data_bits) {
1296 default:
1297 case 8:
1298 tty.c_cflag |= CS8;
1299 break;
1300 case 7:
1301 tty.c_cflag |= CS7;
1302 break;
1303 case 6:
1304 tty.c_cflag |= CS6;
1305 break;
1306 case 5:
1307 tty.c_cflag |= CS5;
1308 break;
1309 }
1310 switch(parity) {
1311 default:
1312 case 'N':
1313 break;
1314 case 'E':
1315 tty.c_cflag |= PARENB;
1316 break;
1317 case 'O':
1318 tty.c_cflag |= PARENB | PARODD;
1319 break;
1320 }
1321 if (stop_bits == 2)
1322 tty.c_cflag |= CSTOPB;
1323
1324 tcsetattr (fd, TCSANOW, &tty);
1325}
1326
1327static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1328{
1329 FDCharDriver *s = chr->opaque;
1330
1331 switch(cmd) {
1332 case CHR_IOCTL_SERIAL_SET_PARAMS:
1333 {
1334 QEMUSerialSetParams *ssp = arg;
a29753f8
AL		 1335 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1336 ssp->speed, ssp->parity,
6f97dba0
AL		 1337 ssp->data_bits, ssp->stop_bits);
1338 }
1339 break;
1340 case CHR_IOCTL_SERIAL_SET_BREAK:
1341 {
1342 int enable = *(int *)arg;
a29753f8
AL		 1343 if (enable) {
1344 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1345 }
6f97dba0
AL		 1346 }
1347 break;
1348 case CHR_IOCTL_SERIAL_GET_TIOCM:
1349 {
1350 int sarg = 0;
1351 int *targ = (int *)arg;
a29753f8 1352 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
6f97dba0 1353 *targ = 0;
b4abdfa4 1354 if (sarg & TIOCM_CTS)
6f97dba0 1355 *targ |= CHR_TIOCM_CTS;
b4abdfa4 1356 if (sarg & TIOCM_CAR)
6f97dba0 1357 *targ |= CHR_TIOCM_CAR;
b4abdfa4 1358 if (sarg & TIOCM_DSR)
6f97dba0 1359 *targ |= CHR_TIOCM_DSR;
b4abdfa4 1360 if (sarg & TIOCM_RI)
6f97dba0 1361 *targ |= CHR_TIOCM_RI;
b4abdfa4 1362 if (sarg & TIOCM_DTR)
6f97dba0 1363 *targ |= CHR_TIOCM_DTR;
b4abdfa4 1364 if (sarg & TIOCM_RTS)
6f97dba0
AL		 1365 *targ |= CHR_TIOCM_RTS;
1366 }
1367 break;
1368 case CHR_IOCTL_SERIAL_SET_TIOCM:
1369 {
1370 int sarg = *(int *)arg;
1371 int targ = 0;
a29753f8 1372 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
b4abdfa4
AJ		 1373 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1374 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1375 if (sarg & CHR_TIOCM_CTS)
1376 targ |= TIOCM_CTS;
1377 if (sarg & CHR_TIOCM_CAR)
1378 targ |= TIOCM_CAR;
1379 if (sarg & CHR_TIOCM_DSR)
1380 targ |= TIOCM_DSR;
1381 if (sarg & CHR_TIOCM_RI)
1382 targ |= TIOCM_RI;
1383 if (sarg & CHR_TIOCM_DTR)
6f97dba0 1384 targ |= TIOCM_DTR;
b4abdfa4 1385 if (sarg & CHR_TIOCM_RTS)
6f97dba0 1386 targ |= TIOCM_RTS;
a29753f8 1387 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
6f97dba0
AL		 1388 }
1389 break;
1390 default:
1391 return -ENOTSUP;
1392 }
1393 return 0;
1394}
1395
4266a134
DA		 1396static void qemu_chr_close_tty(CharDriverState *chr)
1397{
1398 FDCharDriver *s = chr->opaque;
1399 int fd = -1;
1400
1401 if (s) {
a29753f8 1402 fd = g_io_channel_unix_get_fd(s->fd_in);
4266a134
DA		 1403 }
1404
1405 fd_chr_close(chr);
1406
1407 if (fd >= 0) {
1408 close(fd);
1409 }
1410}
1411
d59044ef
GH		 1412static CharDriverState *qemu_chr_open_tty_fd(int fd)
1413{
1414 CharDriverState *chr;
1415
1416 tty_serial_init(fd, 115200, 'N', 8, 1);
1417 chr = qemu_chr_open_fd(fd, fd);
1418 chr->chr_ioctl = tty_serial_ioctl;
1419 chr->chr_close = qemu_chr_close_tty;
1420 return chr;
1421}
1422
1f51470d 1423static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
6f97dba0 1424{
48b76496 1425 const char *filename = qemu_opt_get(opts, "path");
6f97dba0
AL		 1426 int fd;
1427
b181e047 1428 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
afc535ac 1429 if (fd < 0) {
1f51470d 1430 return NULL;
afc535ac 1431 }
d59044ef 1432 return qemu_chr_open_tty_fd(fd);
6f97dba0 1433}
6f97dba0
AL		 1434#endif /* __linux__ || __sun__ */
1435
1436#if defined(__linux__)
e551498e
GH		 1437
1438#define HAVE_CHARDEV_PARPORT 1
1439
6f97dba0
AL		 1440typedef struct {
1441 int fd;
1442 int mode;
1443} ParallelCharDriver;
1444
1445static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1446{
1447 if (s->mode != mode) {
1448 int m = mode;
1449 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1450 return 0;
1451 s->mode = mode;
1452 }
1453 return 1;
1454}
1455
1456static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1457{
1458 ParallelCharDriver *drv = chr->opaque;
1459 int fd = drv->fd;
1460 uint8_t b;
1461
1462 switch(cmd) {
1463 case CHR_IOCTL_PP_READ_DATA:
1464 if (ioctl(fd, PPRDATA, &b) < 0)
1465 return -ENOTSUP;
1466 *(uint8_t *)arg = b;
1467 break;
1468 case CHR_IOCTL_PP_WRITE_DATA:
1469 b = *(uint8_t *)arg;
1470 if (ioctl(fd, PPWDATA, &b) < 0)
1471 return -ENOTSUP;
1472 break;
1473 case CHR_IOCTL_PP_READ_CONTROL:
1474 if (ioctl(fd, PPRCONTROL, &b) < 0)
1475 return -ENOTSUP;
1476 /* Linux gives only the lowest bits, and no way to know data
1477 direction! For better compatibility set the fixed upper
1478 bits. */
1479 *(uint8_t *)arg = b | 0xc0;
1480 break;
1481 case CHR_IOCTL_PP_WRITE_CONTROL:
1482 b = *(uint8_t *)arg;
1483 if (ioctl(fd, PPWCONTROL, &b) < 0)
1484 return -ENOTSUP;
1485 break;
1486 case CHR_IOCTL_PP_READ_STATUS:
1487 if (ioctl(fd, PPRSTATUS, &b) < 0)
1488 return -ENOTSUP;
1489 *(uint8_t *)arg = b;
1490 break;
1491 case CHR_IOCTL_PP_DATA_DIR:
1492 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1493 return -ENOTSUP;
1494 break;
1495 case CHR_IOCTL_PP_EPP_READ_ADDR:
1496 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1497 struct ParallelIOArg *parg = arg;
1498 int n = read(fd, parg->buffer, parg->count);
1499 if (n != parg->count) {
1500 return -EIO;
1501 }
1502 }
1503 break;
1504 case CHR_IOCTL_PP_EPP_READ:
1505 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1506 struct ParallelIOArg *parg = arg;
1507 int n = read(fd, parg->buffer, parg->count);
1508 if (n != parg->count) {
1509 return -EIO;
1510 }
1511 }
1512 break;
1513 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1514 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1515 struct ParallelIOArg *parg = arg;
1516 int n = write(fd, parg->buffer, parg->count);
1517 if (n != parg->count) {
1518 return -EIO;
1519 }
1520 }
1521 break;
1522 case CHR_IOCTL_PP_EPP_WRITE:
1523 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1524 struct ParallelIOArg *parg = arg;
1525 int n = write(fd, parg->buffer, parg->count);
1526 if (n != parg->count) {
1527 return -EIO;
1528 }
1529 }
1530 break;
1531 default:
1532 return -ENOTSUP;
1533 }
1534 return 0;
1535}
1536
1537static void pp_close(CharDriverState *chr)
1538{
1539 ParallelCharDriver *drv = chr->opaque;
1540 int fd = drv->fd;
1541
1542 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1543 ioctl(fd, PPRELEASE);
1544 close(fd);
7267c094 1545 g_free(drv);
a425d23f 1546 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1547}
1548
88a946d3 1549static CharDriverState *qemu_chr_open_pp_fd(int fd)
6f97dba0
AL		 1550{
1551 CharDriverState *chr;
1552 ParallelCharDriver *drv;
6f97dba0
AL		 1553
1554 if (ioctl(fd, PPCLAIM) < 0) {
1555 close(fd);
1f51470d 1556 return NULL;
6f97dba0
AL		 1557 }
1558
7267c094 1559 drv = g_malloc0(sizeof(ParallelCharDriver));
6f97dba0
AL		 1560 drv->fd = fd;
1561 drv->mode = IEEE1284_MODE_COMPAT;
1562
7267c094 1563 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0
AL		 1564 chr->chr_write = null_chr_write;
1565 chr->chr_ioctl = pp_ioctl;
1566 chr->chr_close = pp_close;
1567 chr->opaque = drv;
1568
127338e6 1569 qemu_chr_generic_open(chr);
6f97dba0 1570
1f51470d 1571 return chr;
6f97dba0
AL		 1572}
1573#endif /* __linux__ */
1574
a167ba50 1575#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
e551498e
GH		 1576
1577#define HAVE_CHARDEV_PARPORT 1
1578
6972f935
BS		 1579static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1580{
e0efb993 1581 int fd = (int)(intptr_t)chr->opaque;
6972f935
BS		 1582 uint8_t b;
1583
1584 switch(cmd) {
1585 case CHR_IOCTL_PP_READ_DATA:
1586 if (ioctl(fd, PPIGDATA, &b) < 0)
1587 return -ENOTSUP;
1588 *(uint8_t *)arg = b;
1589 break;
1590 case CHR_IOCTL_PP_WRITE_DATA:
1591 b = *(uint8_t *)arg;
1592 if (ioctl(fd, PPISDATA, &b) < 0)
1593 return -ENOTSUP;
1594 break;
1595 case CHR_IOCTL_PP_READ_CONTROL:
1596 if (ioctl(fd, PPIGCTRL, &b) < 0)
1597 return -ENOTSUP;
1598 *(uint8_t *)arg = b;
1599 break;
1600 case CHR_IOCTL_PP_WRITE_CONTROL:
1601 b = *(uint8_t *)arg;
1602 if (ioctl(fd, PPISCTRL, &b) < 0)
1603 return -ENOTSUP;
1604 break;
1605 case CHR_IOCTL_PP_READ_STATUS:
1606 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1607 return -ENOTSUP;
1608 *(uint8_t *)arg = b;
1609 break;
1610 default:
1611 return -ENOTSUP;
1612 }
1613 return 0;
1614}
1615
88a946d3 1616static CharDriverState *qemu_chr_open_pp_fd(int fd)
6972f935
BS		 1617{
1618 CharDriverState *chr;
6972f935 1619
7267c094 1620 chr = g_malloc0(sizeof(CharDriverState));
e0efb993 1621 chr->opaque = (void *)(intptr_t)fd;
6972f935
BS		 1622 chr->chr_write = null_chr_write;
1623 chr->chr_ioctl = pp_ioctl;
1f51470d 1624 return chr;
6972f935
BS		 1625}
1626#endif
1627
6f97dba0
AL		 1628#else /* _WIN32 */
1629
1630typedef struct {
1631 int max_size;
1632 HANDLE hcom, hrecv, hsend;
1633 OVERLAPPED orecv, osend;
1634 BOOL fpipe;
1635 DWORD len;
1636} WinCharState;
1637
db418a0a
FC		 1638typedef struct {
1639 HANDLE hStdIn;
1640 HANDLE hInputReadyEvent;
1641 HANDLE hInputDoneEvent;
1642 HANDLE hInputThread;
1643 uint8_t win_stdio_buf;
1644} WinStdioCharState;
1645
6f97dba0
AL		 1646#define NSENDBUF 2048
1647#define NRECVBUF 2048
1648#define MAXCONNECT 1
1649#define NTIMEOUT 5000
1650
1651static int win_chr_poll(void *opaque);
1652static int win_chr_pipe_poll(void *opaque);
1653
1654static void win_chr_close(CharDriverState *chr)
1655{
1656 WinCharState *s = chr->opaque;
1657
1658 if (s->hsend) {
1659 CloseHandle(s->hsend);
1660 s->hsend = NULL;
1661 }
1662 if (s->hrecv) {
1663 CloseHandle(s->hrecv);
1664 s->hrecv = NULL;
1665 }
1666 if (s->hcom) {
1667 CloseHandle(s->hcom);
1668 s->hcom = NULL;
1669 }
1670 if (s->fpipe)
1671 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1672 else
1673 qemu_del_polling_cb(win_chr_poll, chr);
793cbfb5 1674
a425d23f 1675 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1676}
1677
1678static int win_chr_init(CharDriverState *chr, const char *filename)
1679{
1680 WinCharState *s = chr->opaque;
1681 COMMCONFIG comcfg;
1682 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1683 COMSTAT comstat;
1684 DWORD size;
1685 DWORD err;
1686
1687 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1688 if (!s->hsend) {
1689 fprintf(stderr, "Failed CreateEvent\n");
1690 goto fail;
1691 }
1692 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1693 if (!s->hrecv) {
1694 fprintf(stderr, "Failed CreateEvent\n");
1695 goto fail;
1696 }
1697
1698 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1699 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1700 if (s->hcom == INVALID_HANDLE_VALUE) {
1701 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1702 s->hcom = NULL;
1703 goto fail;
1704 }
1705
1706 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1707 fprintf(stderr, "Failed SetupComm\n");
1708 goto fail;
1709 }
1710
1711 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1712 size = sizeof(COMMCONFIG);
1713 GetDefaultCommConfig(filename, &comcfg, &size);
1714 comcfg.dcb.DCBlength = sizeof(DCB);
1715 CommConfigDialog(filename, NULL, &comcfg);
1716
1717 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1718 fprintf(stderr, "Failed SetCommState\n");
1719 goto fail;
1720 }
1721
1722 if (!SetCommMask(s->hcom, EV_ERR)) {
1723 fprintf(stderr, "Failed SetCommMask\n");
1724 goto fail;
1725 }
1726
1727 cto.ReadIntervalTimeout = MAXDWORD;
1728 if (!SetCommTimeouts(s->hcom, &cto)) {
1729 fprintf(stderr, "Failed SetCommTimeouts\n");
1730 goto fail;
1731 }
1732
1733 if (!ClearCommError(s->hcom, &err, &comstat)) {
1734 fprintf(stderr, "Failed ClearCommError\n");
1735 goto fail;
1736 }
1737 qemu_add_polling_cb(win_chr_poll, chr);
1738 return 0;
1739
1740 fail:
1741 win_chr_close(chr);
1742 return -1;
1743}
1744
1745static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1746{
1747 WinCharState *s = chr->opaque;
1748 DWORD len, ret, size, err;
1749
1750 len = len1;
1751 ZeroMemory(&s->osend, sizeof(s->osend));
1752 s->osend.hEvent = s->hsend;
1753 while (len > 0) {
1754 if (s->hsend)
1755 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1756 else
1757 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1758 if (!ret) {
1759 err = GetLastError();
1760 if (err == ERROR_IO_PENDING) {
1761 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1762 if (ret) {
1763 buf += size;
1764 len -= size;
1765 } else {
1766 break;
1767 }
1768 } else {
1769 break;
1770 }
1771 } else {
1772 buf += size;
1773 len -= size;
1774 }
1775 }
1776 return len1 - len;
1777}
1778
1779static int win_chr_read_poll(CharDriverState *chr)
1780{
1781 WinCharState *s = chr->opaque;
1782
909cda12 1783 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 1784 return s->max_size;
1785}
1786
1787static void win_chr_readfile(CharDriverState *chr)
1788{
1789 WinCharState *s = chr->opaque;
1790 int ret, err;
9bd7854e 1791 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 1792 DWORD size;
1793
1794 ZeroMemory(&s->orecv, sizeof(s->orecv));
1795 s->orecv.hEvent = s->hrecv;
1796 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1797 if (!ret) {
1798 err = GetLastError();
1799 if (err == ERROR_IO_PENDING) {
1800 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1801 }
1802 }
1803
1804 if (size > 0) {
fa5efccb 1805 qemu_chr_be_write(chr, buf, size);
6f97dba0
AL		 1806 }
1807}
1808
1809static void win_chr_read(CharDriverState *chr)
1810{
1811 WinCharState *s = chr->opaque;
1812
1813 if (s->len > s->max_size)
1814 s->len = s->max_size;
1815 if (s->len == 0)
1816 return;
1817
1818 win_chr_readfile(chr);
1819}
1820
1821static int win_chr_poll(void *opaque)
1822{
1823 CharDriverState *chr = opaque;
1824 WinCharState *s = chr->opaque;
1825 COMSTAT status;
1826 DWORD comerr;
1827
1828 ClearCommError(s->hcom, &comerr, &status);
1829 if (status.cbInQue > 0) {
1830 s->len = status.cbInQue;
1831 win_chr_read_poll(chr);
1832 win_chr_read(chr);
1833 return 1;
1834 }
1835 return 0;
1836}
1837
d59044ef 1838static CharDriverState *qemu_chr_open_win_path(const char *filename)
6f97dba0
AL		 1839{
1840 CharDriverState *chr;
1841 WinCharState *s;
1842
7267c094
AL		 1843 chr = g_malloc0(sizeof(CharDriverState));
1844 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1845 chr->opaque = s;
1846 chr->chr_write = win_chr_write;
1847 chr->chr_close = win_chr_close;
1848
1849 if (win_chr_init(chr, filename) < 0) {
2e02e18b
SW		 1850 g_free(s);
1851 g_free(chr);
1f51470d 1852 return NULL;
6f97dba0 1853 }
127338e6 1854 qemu_chr_generic_open(chr);
1f51470d 1855 return chr;
6f97dba0
AL		 1856}
1857
d59044ef
GH		 1858static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1859{
1860 return qemu_chr_open_win_path(qemu_opt_get(opts, "path"));
1861}
1862
6f97dba0
AL		 1863static int win_chr_pipe_poll(void *opaque)
1864{
1865 CharDriverState *chr = opaque;
1866 WinCharState *s = chr->opaque;
1867 DWORD size;
1868
1869 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1870 if (size > 0) {
1871 s->len = size;
1872 win_chr_read_poll(chr);
1873 win_chr_read(chr);
1874 return 1;
1875 }
1876 return 0;
1877}
1878
1879static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1880{
1881 WinCharState *s = chr->opaque;
1882 OVERLAPPED ov;
1883 int ret;
1884 DWORD size;
1885 char openname[256];
1886
1887 s->fpipe = TRUE;
1888
1889 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1890 if (!s->hsend) {
1891 fprintf(stderr, "Failed CreateEvent\n");
1892 goto fail;
1893 }
1894 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1895 if (!s->hrecv) {
1896 fprintf(stderr, "Failed CreateEvent\n");
1897 goto fail;
1898 }
1899
1900 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1901 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1902 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1903 PIPE_WAIT,
1904 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1905 if (s->hcom == INVALID_HANDLE_VALUE) {
1906 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1907 s->hcom = NULL;
1908 goto fail;
1909 }
1910
1911 ZeroMemory(&ov, sizeof(ov));
1912 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1913 ret = ConnectNamedPipe(s->hcom, &ov);
1914 if (ret) {
1915 fprintf(stderr, "Failed ConnectNamedPipe\n");
1916 goto fail;
1917 }
1918
1919 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1920 if (!ret) {
1921 fprintf(stderr, "Failed GetOverlappedResult\n");
1922 if (ov.hEvent) {
1923 CloseHandle(ov.hEvent);
1924 ov.hEvent = NULL;
1925 }
1926 goto fail;
1927 }
1928
1929 if (ov.hEvent) {
1930 CloseHandle(ov.hEvent);
1931 ov.hEvent = NULL;
1932 }
1933 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1934 return 0;
1935
1936 fail:
1937 win_chr_close(chr);
1938 return -1;
1939}
1940
1941
1f51470d 1942static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
6f97dba0 1943{
7d31544f 1944 const char *filename = qemu_opt_get(opts, "path");
6f97dba0
AL		 1945 CharDriverState *chr;
1946 WinCharState *s;
1947
7267c094
AL		 1948 chr = g_malloc0(sizeof(CharDriverState));
1949 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1950 chr->opaque = s;
1951 chr->chr_write = win_chr_write;
1952 chr->chr_close = win_chr_close;
1953
1954 if (win_chr_pipe_init(chr, filename) < 0) {
2e02e18b
SW		 1955 g_free(s);
1956 g_free(chr);
1f51470d 1957 return NULL;
6f97dba0 1958 }
127338e6 1959 qemu_chr_generic_open(chr);
1f51470d 1960 return chr;
6f97dba0
AL		 1961}
1962
1f51470d 1963static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
6f97dba0
AL		 1964{
1965 CharDriverState *chr;
1966 WinCharState *s;
1967
7267c094
AL		 1968 chr = g_malloc0(sizeof(CharDriverState));
1969 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1970 s->hcom = fd_out;
1971 chr->opaque = s;
1972 chr->chr_write = win_chr_write;
127338e6 1973 qemu_chr_generic_open(chr);
1f51470d 1974 return chr;
6f97dba0
AL		 1975}
1976
1f51470d 1977static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
6f97dba0 1978{
1f51470d 1979 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
6f97dba0
AL		 1980}
1981
db418a0a
FC		 1982static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1983{
1984 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1985 DWORD dwSize;
1986 int len1;
1987
1988 len1 = len;
1989
1990 while (len1 > 0) {
1991 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1992 break;
1993 }
1994 buf += dwSize;
1995 len1 -= dwSize;
1996 }
1997
1998 return len - len1;
1999}
2000
2001static void win_stdio_wait_func(void *opaque)
2002{
2003 CharDriverState *chr = opaque;
2004 WinStdioCharState *stdio = chr->opaque;
2005 INPUT_RECORD buf[4];
2006 int ret;
2007 DWORD dwSize;
2008 int i;
2009
2010 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2011 &dwSize);
2012
2013 if (!ret) {
2014 /* Avoid error storm */
2015 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2016 return;
2017 }
2018
2019 for (i = 0; i < dwSize; i++) {
2020 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2021
2022 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2023 int j;
2024 if (kev->uChar.AsciiChar != 0) {
2025 for (j = 0; j < kev->wRepeatCount; j++) {
2026 if (qemu_chr_be_can_write(chr)) {
2027 uint8_t c = kev->uChar.AsciiChar;
2028 qemu_chr_be_write(chr, &c, 1);
2029 }
2030 }
2031 }
2032 }
2033 }
2034}
2035
2036static DWORD WINAPI win_stdio_thread(LPVOID param)
2037{
2038 CharDriverState *chr = param;
2039 WinStdioCharState *stdio = chr->opaque;
2040 int ret;
2041 DWORD dwSize;
2042
2043 while (1) {
2044
2045 /* Wait for one byte */
2046 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2047
2048 /* Exit in case of error, continue if nothing read */
2049 if (!ret) {
2050 break;
2051 }
2052 if (!dwSize) {
2053 continue;
2054 }
2055
2056 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2057 if (stdio->win_stdio_buf == '\r') {
2058 continue;
2059 }
2060
2061 /* Signal the main thread and wait until the byte was eaten */
2062 if (!SetEvent(stdio->hInputReadyEvent)) {
2063 break;
2064 }
2065 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2066 != WAIT_OBJECT_0) {
2067 break;
2068 }
2069 }
2070
2071 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2072 return 0;
2073}
2074
2075static void win_stdio_thread_wait_func(void *opaque)
2076{
2077 CharDriverState *chr = opaque;
2078 WinStdioCharState *stdio = chr->opaque;
2079
2080 if (qemu_chr_be_can_write(chr)) {
2081 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2082 }
2083
2084 SetEvent(stdio->hInputDoneEvent);
2085}
2086
2087static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2088{
2089 WinStdioCharState *stdio = chr->opaque;
2090 DWORD dwMode = 0;
2091
2092 GetConsoleMode(stdio->hStdIn, &dwMode);
2093
2094 if (echo) {
2095 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2096 } else {
2097 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2098 }
2099}
2100
2101static void win_stdio_close(CharDriverState *chr)
2102{
2103 WinStdioCharState *stdio = chr->opaque;
2104
2105 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2106 CloseHandle(stdio->hInputReadyEvent);
2107 }
2108 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2109 CloseHandle(stdio->hInputDoneEvent);
2110 }
2111 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2112 TerminateThread(stdio->hInputThread, 0);
2113 }
2114
2115 g_free(chr->opaque);
2116 g_free(chr);
db418a0a
FC		 2117}
2118
7c358031 2119static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
db418a0a
FC		 2120{
2121 CharDriverState *chr;
2122 WinStdioCharState *stdio;
2123 DWORD dwMode;
2124 int is_console = 0;
2125
db418a0a
FC		 2126 chr = g_malloc0(sizeof(CharDriverState));
2127 stdio = g_malloc0(sizeof(WinStdioCharState));
2128
2129 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2130 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2131 fprintf(stderr, "cannot open stdio: invalid handle\n");
2132 exit(1);
2133 }
2134
2135 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2136
2137 chr->opaque = stdio;
2138 chr->chr_write = win_stdio_write;
2139 chr->chr_close = win_stdio_close;
2140
ed7a1540
AL		 2141 if (is_console) {
2142 if (qemu_add_wait_object(stdio->hStdIn,
2143 win_stdio_wait_func, chr)) {
2144 fprintf(stderr, "qemu_add_wait_object: failed\n");
2145 }
2146 } else {
2147 DWORD dwId;
2148
2149 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2150 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2151 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2152 chr, 0, &dwId);
2153
2154 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2155 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2156 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2157 fprintf(stderr, "cannot create stdio thread or event\n");
2158 exit(1);
2159 }
2160 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2161 win_stdio_thread_wait_func, chr)) {
2162 fprintf(stderr, "qemu_add_wait_object: failed\n");
db418a0a
FC		 2163 }
2164 }
2165
2166 dwMode |= ENABLE_LINE_INPUT;
2167
ed7a1540 2168 if (is_console) {
db418a0a
FC		 2169 /* set the terminal in raw mode */
2170 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2171 dwMode |= ENABLE_PROCESSED_INPUT;
2172 }
2173
2174 SetConsoleMode(stdio->hStdIn, dwMode);
2175
2176 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2177 qemu_chr_fe_set_echo(chr, false);
2178
1f51470d 2179 return chr;
db418a0a 2180}
6f97dba0
AL		 2181#endif /* !_WIN32 */
2182
5ab8211b 2183
6f97dba0
AL		 2184/***********************************************************/
2185/* UDP Net console */
2186
2187typedef struct {
2188 int fd;
76a9644b
AL		 2189 GIOChannel *chan;
2190 guint tag;
9bd7854e 2191 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2192 int bufcnt;
2193 int bufptr;
2194 int max_size;
2195} NetCharDriver;
2196
2197static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2198{
2199 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2200 gsize bytes_written;
2201 GIOStatus status;
2202
2203 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2204 if (status == G_IO_STATUS_EOF) {
2205 return 0;
2206 } else if (status != G_IO_STATUS_NORMAL) {
2207 return -1;
2208 }
6f97dba0 2209
76a9644b 2210 return bytes_written;
6f97dba0
AL		 2211}
2212
2213static int udp_chr_read_poll(void *opaque)
2214{
2215 CharDriverState *chr = opaque;
2216 NetCharDriver *s = chr->opaque;
2217
909cda12 2218 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2219
2220 /* If there were any stray characters in the queue process them
2221 * first
2222 */
2223 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2224 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2225 s->bufptr++;
909cda12 2226 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2227 }
2228 return s->max_size;
2229}
2230
76a9644b 2231static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 2232{
2233 CharDriverState *chr = opaque;
2234 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2235 gsize bytes_read = 0;
2236 GIOStatus status;
6f97dba0
AL		 2237
2238 if (s->max_size == 0)
76a9644b
AL		 2239 return FALSE;
2240 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2241 &bytes_read, NULL);
2242 s->bufcnt = bytes_read;
6f97dba0 2243 s->bufptr = s->bufcnt;
76a9644b
AL		 2244 if (status != G_IO_STATUS_NORMAL) {
2245 return FALSE;
2246 }
6f97dba0
AL		 2247
2248 s->bufptr = 0;
2249 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2250 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2251 s->bufptr++;
909cda12 2252 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0 2253 }
76a9644b
AL		 2254
2255 return TRUE;
6f97dba0
AL		 2256}
2257
2258static void udp_chr_update_read_handler(CharDriverState *chr)
2259{
2260 NetCharDriver *s = chr->opaque;
2261
76a9644b
AL		 2262 if (s->tag) {
2263 g_source_remove(s->tag);
2264 s->tag = 0;
2265 }
2266
2267 if (s->chan) {
2268 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
6f97dba0
AL		 2269 }
2270}
2271
819f56b7
AL		 2272static void udp_chr_close(CharDriverState *chr)
2273{
2274 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2275 if (s->tag) {
2276 g_source_remove(s->tag);
2277 }
2278 if (s->chan) {
2279 g_io_channel_unref(s->chan);
819f56b7
AL		 2280 closesocket(s->fd);
2281 }
7267c094 2282 g_free(s);
a425d23f 2283 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
819f56b7
AL		 2284}
2285
1f51470d 2286static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
6f97dba0
AL		 2287{
2288 CharDriverState *chr = NULL;
2289 NetCharDriver *s = NULL;
87d5f24f 2290 Error *local_err = NULL;
6f97dba0 2291 int fd = -1;
6f97dba0 2292
7267c094
AL		 2293 chr = g_malloc0(sizeof(CharDriverState));
2294 s = g_malloc0(sizeof(NetCharDriver));
6f97dba0 2295
87d5f24f 2296 fd = inet_dgram_opts(opts, &local_err);
6f97dba0 2297 if (fd < 0) {
6f97dba0
AL		 2298 goto return_err;
2299 }
2300
2301 s->fd = fd;
76a9644b 2302 s->chan = io_channel_from_socket(s->fd);
6f97dba0
AL		 2303 s->bufcnt = 0;
2304 s->bufptr = 0;
2305 chr->opaque = s;
2306 chr->chr_write = udp_chr_write;
2307 chr->chr_update_read_handler = udp_chr_update_read_handler;
819f56b7 2308 chr->chr_close = udp_chr_close;
1f51470d 2309 return chr;
6f97dba0
AL		 2310
2311return_err:
87d5f24f
PB		 2312 if (local_err) {
2313 qerror_report_err(local_err);
2314 error_free(local_err);
2315 }
7267c094
AL		 2316 g_free(chr);
2317 g_free(s);
6e1db57b 2318 if (fd >= 0) {
6f97dba0 2319 closesocket(fd);
6e1db57b 2320 }
1f51470d 2321 return NULL;
6f97dba0
AL		 2322}
2323
2324/***********************************************************/
2325/* TCP Net console */
2326
2327typedef struct {
2ea5a7af
AL		 2328
2329 GIOChannel *chan, *listen_chan;
2330 guint tag, listen_tag;
6f97dba0
AL		 2331 int fd, listen_fd;
2332 int connected;
2333 int max_size;
2334 int do_telnetopt;
2335 int do_nodelay;
2336 int is_unix;
7d174059 2337 int msgfd;
6f97dba0
AL		 2338} TCPCharDriver;
2339
2ea5a7af 2340static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
6f97dba0
AL		 2341
2342static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2343{
2344 TCPCharDriver *s = chr->opaque;
2345 if (s->connected) {
2ea5a7af 2346 return io_channel_send_all(s->chan, buf, len);
455aa1e0 2347 } else {
6db0fdce 2348 /* XXX: indicate an error ? */
455aa1e0 2349 return len;
6f97dba0
AL		 2350 }
2351}
2352
2353static int tcp_chr_read_poll(void *opaque)
2354{
2355 CharDriverState *chr = opaque;
2356 TCPCharDriver *s = chr->opaque;
2357 if (!s->connected)
2358 return 0;
909cda12 2359 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2360 return s->max_size;
2361}
2362
2363#define IAC 255
2364#define IAC_BREAK 243
2365static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2366 TCPCharDriver *s,
2367 uint8_t *buf, int *size)
2368{
2369 /* Handle any telnet client's basic IAC options to satisfy char by
2370 * char mode with no echo. All IAC options will be removed from
2371 * the buf and the do_telnetopt variable will be used to track the
2372 * state of the width of the IAC information.
2373 *
2374 * IAC commands come in sets of 3 bytes with the exception of the
2375 * "IAC BREAK" command and the double IAC.
2376 */
2377
2378 int i;
2379 int j = 0;
2380
2381 for (i = 0; i < *size; i++) {
2382 if (s->do_telnetopt > 1) {
2383 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2384 /* Double IAC means send an IAC */
2385 if (j != i)
2386 buf[j] = buf[i];
2387 j++;
2388 s->do_telnetopt = 1;
2389 } else {
2390 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2391 /* Handle IAC break commands by sending a serial break */
a425d23f 2392 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 2393 s->do_telnetopt++;
2394 }
2395 s->do_telnetopt++;
2396 }
2397 if (s->do_telnetopt >= 4) {
2398 s->do_telnetopt = 1;
2399 }
2400 } else {
2401 if ((unsigned char)buf[i] == IAC) {
2402 s->do_telnetopt = 2;
2403 } else {
2404 if (j != i)
2405 buf[j] = buf[i];
2406 j++;
2407 }
2408 }
2409 }
2410 *size = j;
2411}
2412
7d174059
MM		 2413static int tcp_get_msgfd(CharDriverState *chr)
2414{
2415 TCPCharDriver *s = chr->opaque;
e53f27b9
PB		 2416 int fd = s->msgfd;
2417 s->msgfd = -1;
2418 return fd;
7d174059
MM		 2419}
2420
73bcc2ac 2421#ifndef _WIN32
7d174059
MM		 2422static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2423{
2424 TCPCharDriver *s = chr->opaque;
2425 struct cmsghdr *cmsg;
2426
2427 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2428 int fd;
2429
2430 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2431 cmsg->cmsg_level != SOL_SOCKET ||
2432 cmsg->cmsg_type != SCM_RIGHTS)
2433 continue;
2434
2435 fd = *((int *)CMSG_DATA(cmsg));
2436 if (fd < 0)
2437 continue;
2438
06138651
CB		 2439#ifndef MSG_CMSG_CLOEXEC
2440 qemu_set_cloexec(fd);
2441#endif
7d174059
MM		 2442 if (s->msgfd != -1)
2443 close(s->msgfd);
2444 s->msgfd = fd;
2445 }
2446}
2447
9977c894
MM		 2448static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2449{
2450 TCPCharDriver *s = chr->opaque;
7cba04f6 2451 struct msghdr msg = { NULL, };
9977c894 2452 struct iovec iov[1];
7d174059
MM		 2453 union {
2454 struct cmsghdr cmsg;
2455 char control[CMSG_SPACE(sizeof(int))];
2456 } msg_control;
06138651 2457 int flags = 0;
7d174059 2458 ssize_t ret;
9977c894
MM		 2459
2460 iov[0].iov_base = buf;
2461 iov[0].iov_len = len;
2462
2463 msg.msg_iov = iov;
2464 msg.msg_iovlen = 1;
7d174059
MM		 2465 msg.msg_control = &msg_control;
2466 msg.msg_controllen = sizeof(msg_control);
2467
06138651
CB		 2468#ifdef MSG_CMSG_CLOEXEC
2469 flags |= MSG_CMSG_CLOEXEC;
2470#endif
2471 ret = recvmsg(s->fd, &msg, flags);
2472 if (ret > 0 && s->is_unix) {
7d174059 2473 unix_process_msgfd(chr, &msg);
06138651 2474 }
9977c894 2475
7d174059 2476 return ret;
9977c894
MM		 2477}
2478#else
2479static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2480{
2481 TCPCharDriver *s = chr->opaque;
00aa0040 2482 return qemu_recv(s->fd, buf, len, 0);
9977c894
MM		 2483}
2484#endif
2485
d3cc5bc4
AS		 2486static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2487{
2488 TCPCharDriver *s = chr->opaque;
2489 return g_io_create_watch(s->chan, cond);
2490}
2491
2ea5a7af 2492static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 2493{
2494 CharDriverState *chr = opaque;
2495 TCPCharDriver *s = chr->opaque;
9bd7854e 2496 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2497 int len, size;
2498
2ea5a7af
AL		 2499 if (!s->connected || s->max_size <= 0) {
2500 return FALSE;
2501 }
6f97dba0
AL		 2502 len = sizeof(buf);
2503 if (len > s->max_size)
2504 len = s->max_size;
9977c894 2505 size = tcp_chr_recv(chr, (void *)buf, len);
6f97dba0
AL		 2506 if (size == 0) {
2507 /* connection closed */
2508 s->connected = 0;
2ea5a7af
AL		 2509 if (s->listen_chan) {
2510 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
6f97dba0 2511 }
2ea5a7af
AL		 2512 g_source_remove(s->tag);
2513 s->tag = 0;
2514 g_io_channel_unref(s->chan);
2515 s->chan = NULL;
6f97dba0
AL		 2516 closesocket(s->fd);
2517 s->fd = -1;
a425d23f 2518 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2519 } else if (size > 0) {
2520 if (s->do_telnetopt)
2521 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2522 if (size > 0)
fa5efccb 2523 qemu_chr_be_write(chr, buf, size);
6f97dba0 2524 }
2ea5a7af
AL		 2525
2526 return TRUE;
6f97dba0
AL		 2527}
2528
68c18d1c
BS		 2529#ifndef _WIN32
2530CharDriverState *qemu_chr_open_eventfd(int eventfd)
2531{
6cbf4c8c 2532 return qemu_chr_open_fd(eventfd, eventfd);
6cbf4c8c 2533}
68c18d1c 2534#endif
6cbf4c8c 2535
6f97dba0
AL		 2536static void tcp_chr_connect(void *opaque)
2537{
2538 CharDriverState *chr = opaque;
2539 TCPCharDriver *s = chr->opaque;
2540
2541 s->connected = 1;
2ea5a7af
AL		 2542 if (s->chan) {
2543 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
bbdd2ad0 2544 }
127338e6 2545 qemu_chr_generic_open(chr);
6f97dba0
AL		 2546}
2547
2548#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2549static void tcp_chr_telnet_init(int fd)
2550{
2551 char buf[3];
2552 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2553 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2554 send(fd, (char *)buf, 3, 0);
2555 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2556 send(fd, (char *)buf, 3, 0);
2557 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2558 send(fd, (char *)buf, 3, 0);
2559 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2560 send(fd, (char *)buf, 3, 0);
2561}
2562
13661089
DB		 2563static int tcp_chr_add_client(CharDriverState *chr, int fd)
2564{
2565 TCPCharDriver *s = chr->opaque;
2566 if (s->fd != -1)
2567 return -1;
2568
2569 socket_set_nonblock(fd);
2570 if (s->do_nodelay)
2571 socket_set_nodelay(fd);
2572 s->fd = fd;
2ea5a7af
AL		 2573 s->chan = io_channel_from_socket(fd);
2574 g_source_remove(s->listen_tag);
2575 s->listen_tag = 0;
13661089
DB		 2576 tcp_chr_connect(chr);
2577
2578 return 0;
2579}
2580
2ea5a7af 2581static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
6f97dba0
AL		 2582{
2583 CharDriverState *chr = opaque;
2584 TCPCharDriver *s = chr->opaque;
2585 struct sockaddr_in saddr;
2586#ifndef _WIN32
2587 struct sockaddr_un uaddr;
2588#endif
2589 struct sockaddr *addr;
2590 socklen_t len;
2591 int fd;
2592
2593 for(;;) {
2594#ifndef _WIN32
2595 if (s->is_unix) {
2596 len = sizeof(uaddr);
2597 addr = (struct sockaddr *)&uaddr;
2598 } else
2599#endif
2600 {
2601 len = sizeof(saddr);
2602 addr = (struct sockaddr *)&saddr;
2603 }
40ff6d7e 2604 fd = qemu_accept(s->listen_fd, addr, &len);
6f97dba0 2605 if (fd < 0 && errno != EINTR) {
2ea5a7af 2606 return FALSE;
6f97dba0
AL		 2607 } else if (fd >= 0) {
2608 if (s->do_telnetopt)
2609 tcp_chr_telnet_init(fd);
2610 break;
2611 }
2612 }
13661089
DB		 2613 if (tcp_chr_add_client(chr, fd) < 0)
2614 close(fd);
2ea5a7af
AL		 2615
2616 return TRUE;
6f97dba0
AL		 2617}
2618
2619static void tcp_chr_close(CharDriverState *chr)
2620{
2621 TCPCharDriver *s = chr->opaque;
819f56b7 2622 if (s->fd >= 0) {
2ea5a7af
AL		 2623 if (s->tag) {
2624 g_source_remove(s->tag);
2625 }
2626 if (s->chan) {
2627 g_io_channel_unref(s->chan);
2628 }
6f97dba0 2629 closesocket(s->fd);
819f56b7
AL		 2630 }
2631 if (s->listen_fd >= 0) {
2ea5a7af
AL		 2632 if (s->listen_tag) {
2633 g_source_remove(s->listen_tag);
2634 }
2635 if (s->listen_chan) {
2636 g_io_channel_unref(s->listen_chan);
2637 }
6f97dba0 2638 closesocket(s->listen_fd);
819f56b7 2639 }
7267c094 2640 g_free(s);
a425d23f 2641 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2642}
2643
f6bd5d6e
GH		 2644static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2645 bool is_listen, bool is_telnet,
2646 bool is_waitconnect,
2647 Error **errp)
6f97dba0
AL		 2648{
2649 CharDriverState *chr = NULL;
2650 TCPCharDriver *s = NULL;
f6bd5d6e
GH		 2651 char host[NI_MAXHOST], serv[NI_MAXSERV];
2652 const char *left = "", *right = "";
2653 struct sockaddr_storage ss;
2654 socklen_t ss_len = sizeof(ss);
2655
2656 memset(&ss, 0, ss_len);
2657 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2658 error_setg(errp, "getsockname: %s", strerror(errno));
2659 return NULL;
2660 }
2661
2662 chr = g_malloc0(sizeof(CharDriverState));
2663 s = g_malloc0(sizeof(TCPCharDriver));
2664
2665 s->connected = 0;
2666 s->fd = -1;
2667 s->listen_fd = -1;
2668 s->msgfd = -1;
2669
2670 chr->filename = g_malloc(256);
2671 switch (ss.ss_family) {
2672#ifndef _WIN32
2673 case AF_UNIX:
2674 s->is_unix = 1;
2675 snprintf(chr->filename, 256, "unix:%s%s",
2676 ((struct sockaddr_un *)(&ss))->sun_path,
2677 is_listen ? ",server" : "");
2678 break;
2679#endif
2680 case AF_INET6:
2681 left = "[";
2682 right = "]";
2683 /* fall through */
2684 case AF_INET:
2685 s->do_nodelay = do_nodelay;
2686 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2687 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2688 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2689 is_telnet ? "telnet" : "tcp",
2690 left, host, right, serv,
2691 is_listen ? ",server" : "");
2692 break;
2693 }
2694
2695 chr->opaque = s;
2696 chr->chr_write = tcp_chr_write;
2697 chr->chr_close = tcp_chr_close;
2698 chr->get_msgfd = tcp_get_msgfd;
2699 chr->chr_add_client = tcp_chr_add_client;
d3cc5bc4 2700 chr->chr_add_watch = tcp_chr_add_watch;
f6bd5d6e
GH		 2701
2702 if (is_listen) {
2703 s->listen_fd = fd;
2ea5a7af
AL		 2704 s->listen_chan = io_channel_from_socket(s->listen_fd);
2705 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
f6bd5d6e
GH		 2706 if (is_telnet) {
2707 s->do_telnetopt = 1;
2708 }
2709 } else {
2710 s->connected = 1;
2711 s->fd = fd;
2712 socket_set_nodelay(fd);
2ea5a7af 2713 s->chan = io_channel_from_socket(s->fd);
f6bd5d6e
GH		 2714 tcp_chr_connect(chr);
2715 }
2716
2717 if (is_listen && is_waitconnect) {
2718 printf("QEMU waiting for connection on: %s\n",
2719 chr->filename);
2ea5a7af 2720 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
f6bd5d6e
GH		 2721 socket_set_nonblock(s->listen_fd);
2722 }
2723 return chr;
2724}
2725
2726static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2727{
2728 CharDriverState *chr = NULL;
87d5f24f 2729 Error *local_err = NULL;
aeb2c47a
GH		 2730 int fd = -1;
2731 int is_listen;
2732 int is_waitconnect;
2733 int do_nodelay;
2734 int is_unix;
2735 int is_telnet;
2736
2737 is_listen = qemu_opt_get_bool(opts, "server", 0);
2738 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2739 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2740 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2741 is_unix = qemu_opt_get(opts, "path") != NULL;
6f97dba0
AL		 2742 if (!is_listen)
2743 is_waitconnect = 0;
2744
f07b6003
AL		 2745 if (is_unix) {
2746 if (is_listen) {
87d5f24f 2747 fd = unix_listen_opts(opts, &local_err);
f07b6003 2748 } else {
87d5f24f 2749 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2750 }
2751 } else {
2752 if (is_listen) {
87d5f24f 2753 fd = inet_listen_opts(opts, 0, &local_err);
f07b6003 2754 } else {
87d5f24f 2755 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2756 }
2757 }
a89dd6c3 2758 if (fd < 0) {
6f97dba0 2759 goto fail;
a89dd6c3 2760 }
6f97dba0
AL		 2761
2762 if (!is_waitconnect)
2763 socket_set_nonblock(fd);
2764
f6bd5d6e
GH		 2765 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2766 is_waitconnect, &local_err);
2767 if (error_is_set(&local_err)) {
2768 goto fail;
6f97dba0 2769 }
1f51470d 2770 return chr;
aeb2c47a 2771
f6bd5d6e 2772
6f97dba0 2773 fail:
87d5f24f
PB		 2774 if (local_err) {
2775 qerror_report_err(local_err);
2776 error_free(local_err);
2777 }
2778 if (fd >= 0) {
6f97dba0 2779 closesocket(fd);
87d5f24f 2780 }
f6bd5d6e
GH		 2781 if (chr) {
2782 g_free(chr->opaque);
2783 g_free(chr);
2784 }
1f51470d 2785 return NULL;
6f97dba0
AL		 2786}
2787
999bd67c
LC		 2788/***********************************************************/
2789/* Memory chardev */
2790typedef struct {
2791 size_t outbuf_size;
2792 size_t outbuf_capacity;
2793 uint8_t *outbuf;
2794} MemoryDriver;
2795
2796static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2797{
2798 MemoryDriver *d = chr->opaque;
2799
2800 /* TODO: the QString implementation has the same code, we should
2801 * introduce a generic way to do this in cutils.c */
2802 if (d->outbuf_capacity < d->outbuf_size + len) {
2803 /* grow outbuf */
2804 d->outbuf_capacity += len;
2805 d->outbuf_capacity *= 2;
7267c094 2806 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
999bd67c
LC		 2807 }
2808
2809 memcpy(d->outbuf + d->outbuf_size, buf, len);
2810 d->outbuf_size += len;
2811
2812 return len;
2813}
2814
2815void qemu_chr_init_mem(CharDriverState *chr)
2816{
2817 MemoryDriver *d;
2818
7267c094 2819 d = g_malloc(sizeof(*d));
999bd67c
LC		 2820 d->outbuf_size = 0;
2821 d->outbuf_capacity = 4096;
7267c094 2822 d->outbuf = g_malloc0(d->outbuf_capacity);
999bd67c
LC		 2823
2824 memset(chr, 0, sizeof(*chr));
2825 chr->opaque = d;
2826 chr->chr_write = mem_chr_write;
2827}
2828
2829QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2830{
2831 MemoryDriver *d = chr->opaque;
2832 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2833}
2834
70f24fb6 2835/* NOTE: this driver can not be closed with qemu_chr_delete()! */
999bd67c
LC		 2836void qemu_chr_close_mem(CharDriverState *chr)
2837{
2838 MemoryDriver *d = chr->opaque;
2839
7267c094
AL		 2840 g_free(d->outbuf);
2841 g_free(chr->opaque);
999bd67c
LC		 2842 chr->opaque = NULL;
2843 chr->chr_write = NULL;
2844}
2845
2846size_t qemu_chr_mem_osize(const CharDriverState *chr)
2847{
2848 const MemoryDriver *d = chr->opaque;
2849 return d->outbuf_size;
2850}
2851
51767e7c 2852/*********************************************************/
3949e594 2853/* Ring buffer chardev */
51767e7c
LL		 2854
2855typedef struct {
2856 size_t size;
2857 size_t prod;
2858 size_t cons;
2859 uint8_t *cbuf;
3949e594 2860} RingBufCharDriver;
51767e7c 2861
3949e594 2862static size_t ringbuf_count(const CharDriverState *chr)
51767e7c 2863{
3949e594 2864 const RingBufCharDriver *d = chr->opaque;
51767e7c 2865
5c230105 2866 return d->prod - d->cons;
51767e7c
LL		 2867}
2868
3949e594 2869static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
51767e7c 2870{
3949e594 2871 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2872 int i;
2873
2874 if (!buf || (len < 0)) {
2875 return -1;
2876 }
2877
2878 for (i = 0; i < len; i++ ) {
5c230105
MA		 2879 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2880 if (d->prod - d->cons > d->size) {
51767e7c
LL		 2881 d->cons = d->prod - d->size;
2882 }
2883 }
2884
2885 return 0;
2886}
2887
3949e594 2888static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
51767e7c 2889{
3949e594 2890 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2891 int i;
2892
5c230105
MA		 2893 for (i = 0; i < len && d->cons != d->prod; i++) {
2894 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
51767e7c
LL		 2895 }
2896
2897 return i;
2898}
2899
3949e594 2900static void ringbuf_chr_close(struct CharDriverState *chr)
51767e7c 2901{
3949e594 2902 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2903
2904 g_free(d->cbuf);
2905 g_free(d);
2906 chr->opaque = NULL;
2907}
2908
3949e594 2909static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
51767e7c
LL		 2910{
2911 CharDriverState *chr;
3949e594 2912 RingBufCharDriver *d;
51767e7c
LL		 2913
2914 chr = g_malloc0(sizeof(CharDriverState));
2915 d = g_malloc(sizeof(*d));
2916
de1cc36e 2917 d->size = qemu_opt_get_size(opts, "size", 0);
51767e7c 2918 if (d->size == 0) {
de1cc36e 2919 d->size = 65536;
51767e7c
LL		 2920 }
2921
2922 /* The size must be power of 2 */
2923 if (d->size & (d->size - 1)) {
3949e594 2924 error_report("size of ringbuf device must be power of two");
51767e7c
LL		 2925 goto fail;
2926 }
2927
2928 d->prod = 0;
2929 d->cons = 0;
2930 d->cbuf = g_malloc0(d->size);
2931
2932 chr->opaque = d;
3949e594
MA		 2933 chr->chr_write = ringbuf_chr_write;
2934 chr->chr_close = ringbuf_chr_close;
51767e7c
LL		 2935
2936 return chr;
2937
2938fail:
2939 g_free(d);
2940 g_free(chr);
2941 return NULL;
2942}
2943
3949e594 2944static bool chr_is_ringbuf(const CharDriverState *chr)
1f590cf9 2945{
3949e594 2946 return chr->chr_write == ringbuf_chr_write;
1f590cf9
LL		 2947}
2948
3949e594 2949void qmp_ringbuf_write(const char *device, const char *data,
82e59a67 2950 bool has_format, enum DataFormat format,
1f590cf9
LL		 2951 Error **errp)
2952{
2953 CharDriverState *chr;
c4f331b6 2954 const uint8_t *write_data;
1f590cf9 2955 int ret;
c4f331b6 2956 size_t write_count;
1f590cf9
LL		 2957
2958 chr = qemu_chr_find(device);
2959 if (!chr) {
1a69278e 2960 error_setg(errp, "Device '%s' not found", device);
1f590cf9
LL		 2961 return;
2962 }
2963
3949e594
MA		 2964 if (!chr_is_ringbuf(chr)) {
2965 error_setg(errp,"%s is not a ringbuf device", device);
1f590cf9
LL		 2966 return;
2967 }
2968
1f590cf9
LL		 2969 if (has_format && (format == DATA_FORMAT_BASE64)) {
2970 write_data = g_base64_decode(data, &write_count);
2971 } else {
2972 write_data = (uint8_t *)data;
82e59a67 2973 write_count = strlen(data);
1f590cf9
LL		 2974 }
2975
3949e594 2976 ret = ringbuf_chr_write(chr, write_data, write_count);
1f590cf9 2977
13289fb5
MA		 2978 if (write_data != (uint8_t *)data) {
2979 g_free((void *)write_data);
2980 }
2981
1f590cf9
LL		 2982 if (ret < 0) {
2983 error_setg(errp, "Failed to write to device %s", device);
2984 return;
2985 }
2986}
2987
3949e594 2988char *qmp_ringbuf_read(const char *device, int64_t size,
3ab651fc
MA		 2989 bool has_format, enum DataFormat format,
2990 Error **errp)
49b6d722
LL		 2991{
2992 CharDriverState *chr;
c4f331b6 2993 uint8_t *read_data;
49b6d722 2994 size_t count;
3ab651fc 2995 char *data;
49b6d722
LL		 2996
2997 chr = qemu_chr_find(device);
2998 if (!chr) {
1a69278e 2999 error_setg(errp, "Device '%s' not found", device);
49b6d722
LL		 3000 return NULL;
3001 }
3002
3949e594
MA		 3003 if (!chr_is_ringbuf(chr)) {
3004 error_setg(errp,"%s is not a ringbuf device", device);
49b6d722
LL		 3005 return NULL;
3006 }
3007
3008 if (size <= 0) {
3009 error_setg(errp, "size must be greater than zero");
3010 return NULL;
3011 }
3012
3949e594 3013 count = ringbuf_count(chr);
49b6d722 3014 size = size > count ? count : size;
44f3bcd2 3015 read_data = g_malloc(size + 1);
49b6d722 3016
3949e594 3017 ringbuf_chr_read(chr, read_data, size);
49b6d722
LL		 3018
3019 if (has_format && (format == DATA_FORMAT_BASE64)) {
3ab651fc 3020 data = g_base64_encode(read_data, size);
13289fb5 3021 g_free(read_data);
49b6d722 3022 } else {
3949e594
MA		 3023 /*
3024 * FIXME should read only complete, valid UTF-8 characters up
3025 * to @size bytes. Invalid sequences should be replaced by a
3026 * suitable replacement character. Except when (and only
3027 * when) ring buffer lost characters since last read, initial
3028 * continuation characters should be dropped.
3029 */
44f3bcd2 3030 read_data[size] = 0;
3ab651fc 3031 data = (char *)read_data;
49b6d722
LL		 3032 }
3033
3ab651fc 3034 return data;
49b6d722
LL		 3035}
3036
33521634 3037QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
191bc01b 3038{
6ea314d9 3039 char host[65], port[33], width[8], height[8];
aeb2c47a 3040 int pos;
7d31544f 3041 const char *p;
191bc01b 3042 QemuOpts *opts;
8be7e7e4 3043 Error *local_err = NULL;
191bc01b 3044
8be7e7e4
LC		 3045 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3046 if (error_is_set(&local_err)) {
3047 qerror_report_err(local_err);
3048 error_free(local_err);
191bc01b 3049 return NULL;
8be7e7e4 3050 }
191bc01b 3051
7591c5c1
GH		 3052 if (strstart(filename, "mon:", &p)) {
3053 filename = p;
3054 qemu_opt_set(opts, "mux", "on");
3055 }
3056
f0457e8d
GH		 3057 if (strcmp(filename, "null") == 0 ||
3058 strcmp(filename, "pty") == 0 ||
3059 strcmp(filename, "msmouse") == 0 ||
dc1c21e6 3060 strcmp(filename, "braille") == 0 ||
f0457e8d 3061 strcmp(filename, "stdio") == 0) {
4490dadf 3062 qemu_opt_set(opts, "backend", filename);
191bc01b
GH		 3063 return opts;
3064 }
6ea314d9
GH		 3065 if (strstart(filename, "vc", &p)) {
3066 qemu_opt_set(opts, "backend", "vc");
3067 if (*p == ':') {
3068 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3069 /* pixels */
3070 qemu_opt_set(opts, "width", width);
3071 qemu_opt_set(opts, "height", height);
3072 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3073 /* chars */
3074 qemu_opt_set(opts, "cols", width);
3075 qemu_opt_set(opts, "rows", height);
3076 } else {
3077 goto fail;
3078 }
3079 }
3080 return opts;
3081 }
d6c983cd
GH		 3082 if (strcmp(filename, "con:") == 0) {
3083 qemu_opt_set(opts, "backend", "console");
3084 return opts;
3085 }
48b76496
GH		 3086 if (strstart(filename, "COM", NULL)) {
3087 qemu_opt_set(opts, "backend", "serial");
3088 qemu_opt_set(opts, "path", filename);
3089 return opts;
3090 }
7d31544f
GH		 3091 if (strstart(filename, "file:", &p)) {
3092 qemu_opt_set(opts, "backend", "file");
3093 qemu_opt_set(opts, "path", p);
3094 return opts;
3095 }
3096 if (strstart(filename, "pipe:", &p)) {
3097 qemu_opt_set(opts, "backend", "pipe");
3098 qemu_opt_set(opts, "path", p);
3099 return opts;
3100 }
aeb2c47a
GH		 3101 if (strstart(filename, "tcp:", &p) ||
3102 strstart(filename, "telnet:", &p)) {
3103 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3104 host[0] = 0;
3105 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3106 goto fail;
3107 }
3108 qemu_opt_set(opts, "backend", "socket");
3109 qemu_opt_set(opts, "host", host);
3110 qemu_opt_set(opts, "port", port);
3111 if (p[pos] == ',') {
3112 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3113 goto fail;
3114 }
3115 if (strstart(filename, "telnet:", &p))
3116 qemu_opt_set(opts, "telnet", "on");
3117 return opts;
3118 }
7e1b35b4
GH		 3119 if (strstart(filename, "udp:", &p)) {
3120 qemu_opt_set(opts, "backend", "udp");
3121 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3122 host[0] = 0;
39324ca4 3123 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
7e1b35b4
GH		 3124 goto fail;
3125 }
3126 }
3127 qemu_opt_set(opts, "host", host);
3128 qemu_opt_set(opts, "port", port);
3129 if (p[pos] == '@') {
3130 p += pos + 1;
3131 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3132 host[0] = 0;
3133 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
7e1b35b4
GH		 3134 goto fail;
3135 }
3136 }
3137 qemu_opt_set(opts, "localaddr", host);
3138 qemu_opt_set(opts, "localport", port);
3139 }
3140 return opts;
3141 }
aeb2c47a
GH		 3142 if (strstart(filename, "unix:", &p)) {
3143 qemu_opt_set(opts, "backend", "socket");
3144 if (qemu_opts_do_parse(opts, p, "path") != 0)
3145 goto fail;
3146 return opts;
3147 }
48b76496
GH		 3148 if (strstart(filename, "/dev/parport", NULL) ||
3149 strstart(filename, "/dev/ppi", NULL)) {
3150 qemu_opt_set(opts, "backend", "parport");
3151 qemu_opt_set(opts, "path", filename);
3152 return opts;
3153 }
3154 if (strstart(filename, "/dev/", NULL)) {
3155 qemu_opt_set(opts, "backend", "tty");
3156 qemu_opt_set(opts, "path", filename);
3157 return opts;
3158 }
191bc01b 3159
aeb2c47a 3160fail:
191bc01b
GH		 3161 qemu_opts_del(opts);
3162 return NULL;
3163}
3164
88a946d3
GH		 3165#ifdef HAVE_CHARDEV_PARPORT
3166
3167static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
3168{
3169 const char *filename = qemu_opt_get(opts, "path");
3170 int fd;
3171
3172 fd = qemu_open(filename, O_RDWR);
3173 if (fd < 0) {
3174 return NULL;
3175 }
3176 return qemu_chr_open_pp_fd(fd);
3177}
3178
3179#endif
3180
846e2e49
GH		 3181static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3182 Error **errp)
3183{
3184 const char *path = qemu_opt_get(opts, "path");
3185
3186 if (path == NULL) {
3187 error_setg(errp, "chardev: file: no filename given");
3188 return;
3189 }
3190 backend->file = g_new0(ChardevFile, 1);
3191 backend->file->out = g_strdup(path);
3192}
3193
7c358031
GH		 3194static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3195 Error **errp)
3196{
3197 backend->stdio = g_new0(ChardevStdio, 1);
3198 backend->stdio->has_signal = true;
3199 backend->stdio->signal =
3200 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3201}
3202
d654f34e 3203typedef struct CharDriver {
191bc01b 3204 const char *name;
2c5f4882 3205 /* old, pre qapi */
1f51470d 3206 CharDriverState *(*open)(QemuOpts *opts);
2c5f4882
GH		 3207 /* new, qapi-based */
3208 int kind;
3209 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
d654f34e
AL		 3210} CharDriver;
3211
3212static GSList *backends;
3213
3214void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3215{
3216 CharDriver *s;
3217
3218 s = g_malloc0(sizeof(*s));
3219 s->name = g_strdup(name);
3220 s->open = open;
3221
3222 backends = g_slist_append(backends, s);
3223}
191bc01b 3224
2c5f4882
GH		 3225void register_char_driver_qapi(const char *name, int kind,
3226 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3227{
3228 CharDriver *s;
3229
3230 s = g_malloc0(sizeof(*s));
3231 s->name = g_strdup(name);
3232 s->kind = kind;
3233 s->parse = parse;
3234
3235 backends = g_slist_append(backends, s);
3236}
3237
f69554b9 3238CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
bd2d80b2
GH		 3239 void (*init)(struct CharDriverState *s),
3240 Error **errp)
191bc01b 3241{
d654f34e 3242 CharDriver *cd;
191bc01b 3243 CharDriverState *chr;
d654f34e 3244 GSList *i;
191bc01b
GH		 3245
3246 if (qemu_opts_id(opts) == NULL) {
312fd5f2 3247 error_setg(errp, "chardev: no id specified");
2274ae9d 3248 goto err;
191bc01b
GH		 3249 }
3250
1bbd185f 3251 if (qemu_opt_get(opts, "backend") == NULL) {
312fd5f2 3252 error_setg(errp, "chardev: \"%s\" missing backend",
bd2d80b2 3253 qemu_opts_id(opts));
2274ae9d 3254 goto err;
1bbd185f 3255 }
d654f34e
AL		 3256 for (i = backends; i; i = i->next) {
3257 cd = i->data;
3258
3259 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
191bc01b 3260 break;
d654f34e 3261 }
191bc01b 3262 }
d654f34e 3263 if (i == NULL) {
312fd5f2 3264 error_setg(errp, "chardev: backend \"%s\" not found",
bd2d80b2 3265 qemu_opt_get(opts, "backend"));
d654f34e 3266 return NULL;
191bc01b
GH		 3267 }
3268
2c5f4882
GH		 3269 if (!cd->open) {
3270 /* using new, qapi init */
3271 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3272 ChardevReturn *ret = NULL;
3273 const char *id = qemu_opts_id(opts);
edb2fb3c
GH		 3274 const char *bid = NULL;
3275
3276 if (qemu_opt_get_bool(opts, "mux", 0)) {
3277 bid = g_strdup_printf("%s-base", id);
3278 }
2c5f4882
GH		 3279
3280 chr = NULL;
3281 backend->kind = cd->kind;
3282 if (cd->parse) {
3283 cd->parse(opts, backend, errp);
3284 if (error_is_set(errp)) {
3285 goto qapi_out;
3286 }
3287 }
edb2fb3c 3288 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
2c5f4882
GH		 3289 if (error_is_set(errp)) {
3290 goto qapi_out;
3291 }
edb2fb3c
GH		 3292
3293 if (bid) {
3294 qapi_free_ChardevBackend(backend);
3295 qapi_free_ChardevReturn(ret);
3296 backend = g_new0(ChardevBackend, 1);
3297 backend->mux = g_new0(ChardevMux, 1);
3298 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3299 backend->mux->chardev = g_strdup(bid);
3300 ret = qmp_chardev_add(id, backend, errp);
3301 if (error_is_set(errp)) {
3302 goto qapi_out;
3303 }
3304 }
3305
2c5f4882
GH		 3306 chr = qemu_chr_find(id);
3307
3308 qapi_out:
3309 qapi_free_ChardevBackend(backend);
3310 qapi_free_ChardevReturn(ret);
3311 return chr;
3312 }
3313
d654f34e 3314 chr = cd->open(opts);
1f51470d 3315 if (!chr) {
312fd5f2 3316 error_setg(errp, "chardev: opening backend \"%s\" failed",
bd2d80b2 3317 qemu_opt_get(opts, "backend"));
2274ae9d 3318 goto err;
191bc01b
GH		 3319 }
3320
3321 if (!chr->filename)
7267c094 3322 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
191bc01b 3323 chr->init = init;
72cf2d4f 3324 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
7591c5c1
GH		 3325
3326 if (qemu_opt_get_bool(opts, "mux", 0)) {
3327 CharDriverState *base = chr;
3328 int len = strlen(qemu_opts_id(opts)) + 6;
7267c094 3329 base->label = g_malloc(len);
7591c5c1
GH		 3330 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3331 chr = qemu_chr_open_mux(base);
3332 chr->filename = base->filename;
d5b27167 3333 chr->avail_connections = MAX_MUX;
72cf2d4f 3334 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
d5b27167
KK		 3335 } else {
3336 chr->avail_connections = 1;
7591c5c1 3337 }
7267c094 3338 chr->label = g_strdup(qemu_opts_id(opts));
2274ae9d 3339 chr->opts = opts;
191bc01b 3340 return chr;
2274ae9d
GH		 3341
3342err:
3343 qemu_opts_del(opts);
3344 return NULL;
191bc01b
GH		 3345}
3346
27143a44 3347CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
6f97dba0
AL		 3348{
3349 const char *p;
3350 CharDriverState *chr;
191bc01b 3351 QemuOpts *opts;
bd2d80b2 3352 Error *err = NULL;
191bc01b 3353
c845f401
GH		 3354 if (strstart(filename, "chardev:", &p)) {
3355 return qemu_chr_find(p);
3356 }
3357
191bc01b 3358 opts = qemu_chr_parse_compat(label, filename);
7e1b35b4
GH		 3359 if (!opts)
3360 return NULL;
6f97dba0 3361
bd2d80b2
GH		 3362 chr = qemu_chr_new_from_opts(opts, init, &err);
3363 if (error_is_set(&err)) {
3364 fprintf(stderr, "%s\n", error_get_pretty(err));
3365 error_free(err);
3366 }
7e1b35b4
GH		 3367 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3368 monitor_init(chr, MONITOR_USE_READLINE);
6f97dba0
AL		 3369 }
3370 return chr;
3371}
3372
15f31519 3373void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
c48855e1
PB		 3374{
3375 if (chr->chr_set_echo) {
3376 chr->chr_set_echo(chr, echo);
3377 }
3378}
3379
c9d830ed 3380void qemu_chr_fe_open(struct CharDriverState *chr)
7c32c4fe
HG		 3381{
3382 if (chr->chr_guest_open) {
3383 chr->chr_guest_open(chr);
3384 }
3385}
3386
2817822d 3387void qemu_chr_fe_close(struct CharDriverState *chr)
7c32c4fe
HG		 3388{
3389 if (chr->chr_guest_close) {
3390 chr->chr_guest_close(chr);
3391 }
3392}
3393
23673ca7
AL		 3394guint qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3395 GIOFunc func, void *user_data)
3396{
3397 GSource *src;
3398 guint tag;
3399
3400 if (s->chr_add_watch == NULL) {
3401 return -ENOSYS;
3402 }
3403
3404 src = s->chr_add_watch(s, cond);
3405 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3406 tag = g_source_attach(src, NULL);
3407 g_source_unref(src);
3408
3409 return tag;
3410}
3411
70f24fb6 3412void qemu_chr_delete(CharDriverState *chr)
6f97dba0 3413{
72cf2d4f 3414 QTAILQ_REMOVE(&chardevs, chr, next);
2274ae9d 3415 if (chr->chr_close) {
6f97dba0 3416 chr->chr_close(chr);
2274ae9d 3417 }
7267c094
AL		 3418 g_free(chr->filename);
3419 g_free(chr->label);
2274ae9d
GH		 3420 if (chr->opts) {
3421 qemu_opts_del(chr->opts);
3422 }
7267c094 3423 g_free(chr);
6f97dba0
AL		 3424}
3425
c5a415a0 3426ChardevInfoList *qmp_query_chardev(Error **errp)
6f97dba0 3427{
c5a415a0 3428 ChardevInfoList *chr_list = NULL;
6f97dba0
AL		 3429 CharDriverState *chr;
3430
72cf2d4f 3431 QTAILQ_FOREACH(chr, &chardevs, next) {
c5a415a0
LC		 3432 ChardevInfoList *info = g_malloc0(sizeof(*info));
3433 info->value = g_malloc0(sizeof(*info->value));
3434 info->value->label = g_strdup(chr->label);
3435 info->value->filename = g_strdup(chr->filename);
3436
3437 info->next = chr_list;
3438 chr_list = info;
6f97dba0 3439 }
588b3832 3440
c5a415a0 3441 return chr_list;
6f97dba0 3442}
c845f401
GH		 3443
3444CharDriverState *qemu_chr_find(const char *name)
3445{
3446 CharDriverState *chr;
3447
72cf2d4f 3448 QTAILQ_FOREACH(chr, &chardevs, next) {
c845f401
GH		 3449 if (strcmp(chr->label, name) != 0)
3450 continue;
3451 return chr;
3452 }
3453 return NULL;
3454}
0beb4942
AL		 3455
3456/* Get a character (serial) device interface. */
3457CharDriverState *qemu_char_get_next_serial(void)
3458{
3459 static int next_serial;
3460
3461 /* FIXME: This function needs to go away: use chardev properties! */
3462 return serial_hds[next_serial++];
3463}
3464
4d454574
PB		 3465QemuOptsList qemu_chardev_opts = {
3466 .name = "chardev",
3467 .implied_opt_name = "backend",
3468 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3469 .desc = {
3470 {
3471 .name = "backend",
3472 .type = QEMU_OPT_STRING,
3473 },{
3474 .name = "path",
3475 .type = QEMU_OPT_STRING,
3476 },{
3477 .name = "host",
3478 .type = QEMU_OPT_STRING,
3479 },{
3480 .name = "port",
3481 .type = QEMU_OPT_STRING,
3482 },{
3483 .name = "localaddr",
3484 .type = QEMU_OPT_STRING,
3485 },{
3486 .name = "localport",
3487 .type = QEMU_OPT_STRING,
3488 },{
3489 .name = "to",
3490 .type = QEMU_OPT_NUMBER,
3491 },{
3492 .name = "ipv4",
3493 .type = QEMU_OPT_BOOL,
3494 },{
3495 .name = "ipv6",
3496 .type = QEMU_OPT_BOOL,
3497 },{
3498 .name = "wait",
3499 .type = QEMU_OPT_BOOL,
3500 },{
3501 .name = "server",
3502 .type = QEMU_OPT_BOOL,
3503 },{
3504 .name = "delay",
3505 .type = QEMU_OPT_BOOL,
3506 },{
3507 .name = "telnet",
3508 .type = QEMU_OPT_BOOL,
3509 },{
3510 .name = "width",
3511 .type = QEMU_OPT_NUMBER,
3512 },{
3513 .name = "height",
3514 .type = QEMU_OPT_NUMBER,
3515 },{
3516 .name = "cols",
3517 .type = QEMU_OPT_NUMBER,
3518 },{
3519 .name = "rows",
3520 .type = QEMU_OPT_NUMBER,
3521 },{
3522 .name = "mux",
3523 .type = QEMU_OPT_BOOL,
3524 },{
3525 .name = "signal",
3526 .type = QEMU_OPT_BOOL,
3527 },{
3528 .name = "name",
3529 .type = QEMU_OPT_STRING,
3530 },{
3531 .name = "debug",
3532 .type = QEMU_OPT_NUMBER,
51767e7c 3533 },{
3949e594 3534 .name = "size",
de1cc36e 3535 .type = QEMU_OPT_SIZE,
4d454574
PB		 3536 },
3537 { /* end of list */ }
3538 },
3539};
f1a1a356 3540
ffbdbe59
GH		 3541#ifdef _WIN32
3542
3543static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3544{
3545 HANDLE out;
3546
3547 if (file->in) {
3548 error_setg(errp, "input file not supported");
3549 return NULL;
3550 }
3551
3552 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3553 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3554 if (out == INVALID_HANDLE_VALUE) {
3555 error_setg(errp, "open %s failed", file->out);
3556 return NULL;
3557 }
3558 return qemu_chr_open_win_file(out);
3559}
3560
d36b2b90
MA		 3561static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3562 Error **errp)
d59044ef 3563{
d36b2b90
MA		 3564 return qemu_chr_open_win_path(serial->device);
3565}
3566
3567static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3568 Error **errp)
3569{
3570 error_setg(errp, "character device backend type 'parallel' not supported");
3571 return NULL;
d59044ef
GH		 3572}
3573
ffbdbe59
GH		 3574#else /* WIN32 */
3575
3576static int qmp_chardev_open_file_source(char *src, int flags,
3577 Error **errp)
3578{
3579 int fd = -1;
3580
3581 TFR(fd = qemu_open(src, flags, 0666));
3582 if (fd == -1) {
3583 error_setg(errp, "open %s: %s", src, strerror(errno));
3584 }
3585 return fd;
3586}
3587
3588static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3589{
3590 int flags, in = -1, out = -1;
3591
3592 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3593 out = qmp_chardev_open_file_source(file->out, flags, errp);
3594 if (error_is_set(errp)) {
3595 return NULL;
3596 }
3597
3598 if (file->in) {
3599 flags = O_RDONLY;
3600 in = qmp_chardev_open_file_source(file->in, flags, errp);
3601 if (error_is_set(errp)) {
3602 qemu_close(out);
3603 return NULL;
3604 }
3605 }
3606
3607 return qemu_chr_open_fd(in, out);
3608}
3609
d36b2b90
MA		 3610static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3611 Error **errp)
d59044ef 3612{
d59044ef 3613#ifdef HAVE_CHARDEV_TTY
d36b2b90
MA		 3614 int fd;
3615
3616 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3617 if (error_is_set(errp)) {
3618 return NULL;
39099991 3619 }
d36b2b90
MA		 3620 socket_set_nonblock(fd);
3621 return qemu_chr_open_tty_fd(fd);
3622#else
3623 error_setg(errp, "character device backend type 'serial' not supported");
3624 return NULL;
88a946d3 3625#endif
d36b2b90
MA		 3626}
3627
3628static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3629 Error **errp)
3630{
88a946d3 3631#ifdef HAVE_CHARDEV_PARPORT
d36b2b90
MA		 3632 int fd;
3633
3634 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3635 if (error_is_set(errp)) {
d59044ef
GH		 3636 return NULL;
3637 }
d36b2b90
MA		 3638 return qemu_chr_open_pp_fd(fd);
3639#else
3640 error_setg(errp, "character device backend type 'parallel' not supported");
3641 return NULL;
3642#endif
d59044ef
GH		 3643}
3644
ffbdbe59
GH		 3645#endif /* WIN32 */
3646
f6bd5d6e
GH		 3647static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3648 Error **errp)
3649{
3650 SocketAddress *addr = sock->addr;
3651 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3652 bool is_listen = sock->has_server ? sock->server : true;
3653 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3654 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3655 int fd;
3656
3657 if (is_listen) {
3658 fd = socket_listen(addr, errp);
3659 } else {
3660 fd = socket_connect(addr, errp, NULL, NULL);
3661 }
3662 if (error_is_set(errp)) {
3663 return NULL;
3664 }
3665 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3666 is_telnet, is_waitconnect, errp);
3667}
3668
f1a1a356
GH		 3669ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3670 Error **errp)
3671{
3672 ChardevReturn *ret = g_new0(ChardevReturn, 1);
edb2fb3c 3673 CharDriverState *base, *chr = NULL;
f1a1a356
GH		 3674
3675 chr = qemu_chr_find(id);
3676 if (chr) {
3677 error_setg(errp, "Chardev '%s' already exists", id);
3678 g_free(ret);
3679 return NULL;
3680 }
3681
3682 switch (backend->kind) {
ffbdbe59
GH		 3683 case CHARDEV_BACKEND_KIND_FILE:
3684 chr = qmp_chardev_open_file(backend->file, errp);
3685 break;
d36b2b90
MA		 3686 case CHARDEV_BACKEND_KIND_SERIAL:
3687 chr = qmp_chardev_open_serial(backend->serial, errp);
3688 break;
3689 case CHARDEV_BACKEND_KIND_PARALLEL:
3690 chr = qmp_chardev_open_parallel(backend->parallel, errp);
d59044ef 3691 break;
f6bd5d6e
GH		 3692 case CHARDEV_BACKEND_KIND_SOCKET:
3693 chr = qmp_chardev_open_socket(backend->socket, errp);
3694 break;
0a1a7fab
GH		 3695#ifdef HAVE_CHARDEV_TTY
3696 case CHARDEV_BACKEND_KIND_PTY:
3697 {
3698 /* qemu_chr_open_pty sets "path" in opts */
3699 QemuOpts *opts;
3700 opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
3701 chr = qemu_chr_open_pty(opts);
3702 ret->pty = g_strdup(qemu_opt_get(opts, "path"));
3703 ret->has_pty = true;
3704 qemu_opts_del(opts);
3705 break;
3706 }
3707#endif
f1a1a356 3708 case CHARDEV_BACKEND_KIND_NULL:
80dca9e6 3709 chr = qemu_chr_open_null();
f1a1a356 3710 break;
edb2fb3c
GH		 3711 case CHARDEV_BACKEND_KIND_MUX:
3712 base = qemu_chr_find(backend->mux->chardev);
3713 if (base == NULL) {
3714 error_setg(errp, "mux: base chardev %s not found",
3715 backend->mux->chardev);
3716 break;
3717 }
3718 chr = qemu_chr_open_mux(base);
3719 break;
f5a51cab
GH		 3720 case CHARDEV_BACKEND_KIND_MSMOUSE:
3721 chr = qemu_chr_open_msmouse();
3722 break;
2d57286d
GH		 3723#ifdef CONFIG_BRLAPI
3724 case CHARDEV_BACKEND_KIND_BRAILLE:
3725 chr = chr_baum_init();
3726 break;
3727#endif
7c358031
GH		 3728 case CHARDEV_BACKEND_KIND_STDIO:
3729 chr = qemu_chr_open_stdio(backend->stdio);
3730 break;
f1a1a356
GH		 3731 default:
3732 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3733 break;
3734 }
3735
3736 if (chr == NULL && !error_is_set(errp)) {
3737 error_setg(errp, "Failed to create chardev");
3738 }
3739 if (chr) {
3740 chr->label = g_strdup(id);
edb2fb3c
GH		 3741 chr->avail_connections =
3742 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
f1a1a356
GH		 3743 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3744 return ret;
3745 } else {
3746 g_free(ret);
3747 return NULL;
3748 }
3749}
3750
3751void qmp_chardev_remove(const char *id, Error **errp)
3752{
3753 CharDriverState *chr;
3754
3755 chr = qemu_chr_find(id);
3756 if (NULL == chr) {
3757 error_setg(errp, "Chardev '%s' not found", id);
3758 return;
3759 }
3760 if (chr->chr_can_read || chr->chr_read ||
3761 chr->chr_event || chr->handler_opaque) {
3762 error_setg(errp, "Chardev '%s' is busy", id);
3763 return;
3764 }
3765 qemu_chr_delete(chr);
3766}
d654f34e
AL		 3767
3768static void register_types(void)
3769{
80dca9e6 3770 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
d654f34e
AL		 3771 register_char_driver("socket", qemu_chr_open_socket);
3772 register_char_driver("udp", qemu_chr_open_udp);
d654f34e 3773 register_char_driver("memory", qemu_chr_open_ringbuf);
846e2e49
GH		 3774 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3775 qemu_chr_parse_file_out);
7c358031
GH		 3776 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3777 qemu_chr_parse_stdio);
d654f34e 3778#ifdef _WIN32
d654f34e
AL		 3779 register_char_driver("pipe", qemu_chr_open_win_pipe);
3780 register_char_driver("console", qemu_chr_open_win_con);
3781 register_char_driver("serial", qemu_chr_open_win);
d654f34e 3782#else
d654f34e 3783 register_char_driver("pipe", qemu_chr_open_pipe);
d654f34e 3784#endif
d654f34e
AL		 3785#ifdef HAVE_CHARDEV_TTY
3786 register_char_driver("tty", qemu_chr_open_tty);
3787 register_char_driver("serial", qemu_chr_open_tty);
3788 register_char_driver("pty", qemu_chr_open_pty);
3789#endif
3790#ifdef HAVE_CHARDEV_PARPORT
3791 register_char_driver("parallel", qemu_chr_open_pp);
3792 register_char_driver("parport", qemu_chr_open_pp);
3793#endif
d654f34e
AL		 3794}
3795
3796type_init(register_types);
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