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chardev: add memory (ringbuf) support to qapi
[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
548cbb36 844static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
6f97dba0
AL		 845{
846 int fd_in, fd_out;
847 char filename_in[256], filename_out[256];
548cbb36 848 const char *filename = opts->device;
7d31544f
GH		 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
e68c5958
GH		 1160static CharDriverState *qemu_chr_open_pty(const char *id,
1161 ChardevReturn *ret)
6f97dba0
AL		 1162{
1163 CharDriverState *chr;
1164 PtyCharDriver *s;
1165 struct termios tty;
e68c5958 1166 int master_fd, slave_fd;
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
e68c5958
GH		 1187 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1188 ret->pty = g_strdup(q_ptsname(master_fd));
1189 ret->has_pty = true;
58650218 1190
e68c5958
GH		 1191 fprintf(stderr, "char device redirected to %s (label %s)\n",
1192 q_ptsname(master_fd), id);
6f97dba0 1193
a4e26048 1194 s = g_malloc0(sizeof(PtyCharDriver));
6f97dba0
AL		 1195 chr->opaque = s;
1196 chr->chr_write = pty_chr_write;
1197 chr->chr_update_read_handler = pty_chr_update_read_handler;
1198 chr->chr_close = pty_chr_close;
e6a87ed8 1199 chr->chr_add_watch = pty_chr_add_watch;
6f97dba0 1200
093d3a20 1201 s->fd = io_channel_from_fd(master_fd);
8aa33caf 1202 s->timer_tag = 0;
6f97dba0 1203
1f51470d 1204 return chr;
6f97dba0
AL		 1205}
1206
1207static void tty_serial_init(int fd, int speed,
1208 int parity, int data_bits, int stop_bits)
1209{
1210 struct termios tty;
1211 speed_t spd;
1212
1213#if 0
1214 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1215 speed, parity, data_bits, stop_bits);
1216#endif
1217 tcgetattr (fd, &tty);
1218
45eea13b
SW		 1219#define check_speed(val) if (speed <= val) { spd = B##val; break; }
1220 speed = speed * 10 / 11;
1221 do {
1222 check_speed(50);
1223 check_speed(75);
1224 check_speed(110);
1225 check_speed(134);
1226 check_speed(150);
1227 check_speed(200);
1228 check_speed(300);
1229 check_speed(600);
1230 check_speed(1200);
1231 check_speed(1800);
1232 check_speed(2400);
1233 check_speed(4800);
1234 check_speed(9600);
1235 check_speed(19200);
1236 check_speed(38400);
1237 /* Non-Posix values follow. They may be unsupported on some systems. */
1238 check_speed(57600);
1239 check_speed(115200);
1240#ifdef B230400
1241 check_speed(230400);
1242#endif
1243#ifdef B460800
1244 check_speed(460800);
1245#endif
1246#ifdef B500000
1247 check_speed(500000);
1248#endif
1249#ifdef B576000
1250 check_speed(576000);
1251#endif
1252#ifdef B921600
1253 check_speed(921600);
1254#endif
1255#ifdef B1000000
1256 check_speed(1000000);
1257#endif
1258#ifdef B1152000
1259 check_speed(1152000);
1260#endif
1261#ifdef B1500000
1262 check_speed(1500000);
1263#endif
1264#ifdef B2000000
1265 check_speed(2000000);
1266#endif
1267#ifdef B2500000
1268 check_speed(2500000);
1269#endif
1270#ifdef B3000000
1271 check_speed(3000000);
1272#endif
1273#ifdef B3500000
1274 check_speed(3500000);
1275#endif
1276#ifdef B4000000
1277 check_speed(4000000);
1278#endif
6f97dba0 1279 spd = B115200;
45eea13b 1280 } while (0);
6f97dba0
AL		 1281
1282 cfsetispeed(&tty, spd);
1283 cfsetospeed(&tty, spd);
1284
1285 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1286 |INLCR|IGNCR|ICRNL|IXON);
1287 tty.c_oflag |= OPOST;
1288 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1289 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1290 switch(data_bits) {
1291 default:
1292 case 8:
1293 tty.c_cflag |= CS8;
1294 break;
1295 case 7:
1296 tty.c_cflag |= CS7;
1297 break;
1298 case 6:
1299 tty.c_cflag |= CS6;
1300 break;
1301 case 5:
1302 tty.c_cflag |= CS5;
1303 break;
1304 }
1305 switch(parity) {
1306 default:
1307 case 'N':
1308 break;
1309 case 'E':
1310 tty.c_cflag |= PARENB;
1311 break;
1312 case 'O':
1313 tty.c_cflag |= PARENB | PARODD;
1314 break;
1315 }
1316 if (stop_bits == 2)
1317 tty.c_cflag |= CSTOPB;
1318
1319 tcsetattr (fd, TCSANOW, &tty);
1320}
1321
1322static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1323{
1324 FDCharDriver *s = chr->opaque;
1325
1326 switch(cmd) {
1327 case CHR_IOCTL_SERIAL_SET_PARAMS:
1328 {
1329 QEMUSerialSetParams *ssp = arg;
a29753f8
AL		 1330 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1331 ssp->speed, ssp->parity,
6f97dba0
AL		 1332 ssp->data_bits, ssp->stop_bits);
1333 }
1334 break;
1335 case CHR_IOCTL_SERIAL_SET_BREAK:
1336 {
1337 int enable = *(int *)arg;
a29753f8
AL		 1338 if (enable) {
1339 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1340 }
6f97dba0
AL		 1341 }
1342 break;
1343 case CHR_IOCTL_SERIAL_GET_TIOCM:
1344 {
1345 int sarg = 0;
1346 int *targ = (int *)arg;
a29753f8 1347 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
6f97dba0 1348 *targ = 0;
b4abdfa4 1349 if (sarg & TIOCM_CTS)
6f97dba0 1350 *targ |= CHR_TIOCM_CTS;
b4abdfa4 1351 if (sarg & TIOCM_CAR)
6f97dba0 1352 *targ |= CHR_TIOCM_CAR;
b4abdfa4 1353 if (sarg & TIOCM_DSR)
6f97dba0 1354 *targ |= CHR_TIOCM_DSR;
b4abdfa4 1355 if (sarg & TIOCM_RI)
6f97dba0 1356 *targ |= CHR_TIOCM_RI;
b4abdfa4 1357 if (sarg & TIOCM_DTR)
6f97dba0 1358 *targ |= CHR_TIOCM_DTR;
b4abdfa4 1359 if (sarg & TIOCM_RTS)
6f97dba0
AL		 1360 *targ |= CHR_TIOCM_RTS;
1361 }
1362 break;
1363 case CHR_IOCTL_SERIAL_SET_TIOCM:
1364 {
1365 int sarg = *(int *)arg;
1366 int targ = 0;
a29753f8 1367 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
b4abdfa4
AJ		 1368 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1369 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1370 if (sarg & CHR_TIOCM_CTS)
1371 targ |= TIOCM_CTS;
1372 if (sarg & CHR_TIOCM_CAR)
1373 targ |= TIOCM_CAR;
1374 if (sarg & CHR_TIOCM_DSR)
1375 targ |= TIOCM_DSR;
1376 if (sarg & CHR_TIOCM_RI)
1377 targ |= TIOCM_RI;
1378 if (sarg & CHR_TIOCM_DTR)
6f97dba0 1379 targ |= TIOCM_DTR;
b4abdfa4 1380 if (sarg & CHR_TIOCM_RTS)
6f97dba0 1381 targ |= TIOCM_RTS;
a29753f8 1382 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
6f97dba0
AL		 1383 }
1384 break;
1385 default:
1386 return -ENOTSUP;
1387 }
1388 return 0;
1389}
1390
4266a134
DA		 1391static void qemu_chr_close_tty(CharDriverState *chr)
1392{
1393 FDCharDriver *s = chr->opaque;
1394 int fd = -1;
1395
1396 if (s) {
a29753f8 1397 fd = g_io_channel_unix_get_fd(s->fd_in);
4266a134
DA		 1398 }
1399
1400 fd_chr_close(chr);
1401
1402 if (fd >= 0) {
1403 close(fd);
1404 }
1405}
1406
d59044ef
GH		 1407static CharDriverState *qemu_chr_open_tty_fd(int fd)
1408{
1409 CharDriverState *chr;
1410
1411 tty_serial_init(fd, 115200, 'N', 8, 1);
1412 chr = qemu_chr_open_fd(fd, fd);
1413 chr->chr_ioctl = tty_serial_ioctl;
1414 chr->chr_close = qemu_chr_close_tty;
1415 return chr;
1416}
6f97dba0
AL		 1417#endif /* __linux__ || __sun__ */
1418
1419#if defined(__linux__)
e551498e
GH		 1420
1421#define HAVE_CHARDEV_PARPORT 1
1422
6f97dba0
AL		 1423typedef struct {
1424 int fd;
1425 int mode;
1426} ParallelCharDriver;
1427
1428static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1429{
1430 if (s->mode != mode) {
1431 int m = mode;
1432 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1433 return 0;
1434 s->mode = mode;
1435 }
1436 return 1;
1437}
1438
1439static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1440{
1441 ParallelCharDriver *drv = chr->opaque;
1442 int fd = drv->fd;
1443 uint8_t b;
1444
1445 switch(cmd) {
1446 case CHR_IOCTL_PP_READ_DATA:
1447 if (ioctl(fd, PPRDATA, &b) < 0)
1448 return -ENOTSUP;
1449 *(uint8_t *)arg = b;
1450 break;
1451 case CHR_IOCTL_PP_WRITE_DATA:
1452 b = *(uint8_t *)arg;
1453 if (ioctl(fd, PPWDATA, &b) < 0)
1454 return -ENOTSUP;
1455 break;
1456 case CHR_IOCTL_PP_READ_CONTROL:
1457 if (ioctl(fd, PPRCONTROL, &b) < 0)
1458 return -ENOTSUP;
1459 /* Linux gives only the lowest bits, and no way to know data
1460 direction! For better compatibility set the fixed upper
1461 bits. */
1462 *(uint8_t *)arg = b | 0xc0;
1463 break;
1464 case CHR_IOCTL_PP_WRITE_CONTROL:
1465 b = *(uint8_t *)arg;
1466 if (ioctl(fd, PPWCONTROL, &b) < 0)
1467 return -ENOTSUP;
1468 break;
1469 case CHR_IOCTL_PP_READ_STATUS:
1470 if (ioctl(fd, PPRSTATUS, &b) < 0)
1471 return -ENOTSUP;
1472 *(uint8_t *)arg = b;
1473 break;
1474 case CHR_IOCTL_PP_DATA_DIR:
1475 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1476 return -ENOTSUP;
1477 break;
1478 case CHR_IOCTL_PP_EPP_READ_ADDR:
1479 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1480 struct ParallelIOArg *parg = arg;
1481 int n = read(fd, parg->buffer, parg->count);
1482 if (n != parg->count) {
1483 return -EIO;
1484 }
1485 }
1486 break;
1487 case CHR_IOCTL_PP_EPP_READ:
1488 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1489 struct ParallelIOArg *parg = arg;
1490 int n = read(fd, parg->buffer, parg->count);
1491 if (n != parg->count) {
1492 return -EIO;
1493 }
1494 }
1495 break;
1496 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1497 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1498 struct ParallelIOArg *parg = arg;
1499 int n = write(fd, parg->buffer, parg->count);
1500 if (n != parg->count) {
1501 return -EIO;
1502 }
1503 }
1504 break;
1505 case CHR_IOCTL_PP_EPP_WRITE:
1506 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1507 struct ParallelIOArg *parg = arg;
1508 int n = write(fd, parg->buffer, parg->count);
1509 if (n != parg->count) {
1510 return -EIO;
1511 }
1512 }
1513 break;
1514 default:
1515 return -ENOTSUP;
1516 }
1517 return 0;
1518}
1519
1520static void pp_close(CharDriverState *chr)
1521{
1522 ParallelCharDriver *drv = chr->opaque;
1523 int fd = drv->fd;
1524
1525 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1526 ioctl(fd, PPRELEASE);
1527 close(fd);
7267c094 1528 g_free(drv);
a425d23f 1529 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1530}
1531
88a946d3 1532static CharDriverState *qemu_chr_open_pp_fd(int fd)
6f97dba0
AL		 1533{
1534 CharDriverState *chr;
1535 ParallelCharDriver *drv;
6f97dba0
AL		 1536
1537 if (ioctl(fd, PPCLAIM) < 0) {
1538 close(fd);
1f51470d 1539 return NULL;
6f97dba0
AL		 1540 }
1541
7267c094 1542 drv = g_malloc0(sizeof(ParallelCharDriver));
6f97dba0
AL		 1543 drv->fd = fd;
1544 drv->mode = IEEE1284_MODE_COMPAT;
1545
7267c094 1546 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0
AL		 1547 chr->chr_write = null_chr_write;
1548 chr->chr_ioctl = pp_ioctl;
1549 chr->chr_close = pp_close;
1550 chr->opaque = drv;
1551
127338e6 1552 qemu_chr_generic_open(chr);
6f97dba0 1553
1f51470d 1554 return chr;
6f97dba0
AL		 1555}
1556#endif /* __linux__ */
1557
a167ba50 1558#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
e551498e
GH		 1559
1560#define HAVE_CHARDEV_PARPORT 1
1561
6972f935
BS		 1562static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1563{
e0efb993 1564 int fd = (int)(intptr_t)chr->opaque;
6972f935
BS		 1565 uint8_t b;
1566
1567 switch(cmd) {
1568 case CHR_IOCTL_PP_READ_DATA:
1569 if (ioctl(fd, PPIGDATA, &b) < 0)
1570 return -ENOTSUP;
1571 *(uint8_t *)arg = b;
1572 break;
1573 case CHR_IOCTL_PP_WRITE_DATA:
1574 b = *(uint8_t *)arg;
1575 if (ioctl(fd, PPISDATA, &b) < 0)
1576 return -ENOTSUP;
1577 break;
1578 case CHR_IOCTL_PP_READ_CONTROL:
1579 if (ioctl(fd, PPIGCTRL, &b) < 0)
1580 return -ENOTSUP;
1581 *(uint8_t *)arg = b;
1582 break;
1583 case CHR_IOCTL_PP_WRITE_CONTROL:
1584 b = *(uint8_t *)arg;
1585 if (ioctl(fd, PPISCTRL, &b) < 0)
1586 return -ENOTSUP;
1587 break;
1588 case CHR_IOCTL_PP_READ_STATUS:
1589 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1590 return -ENOTSUP;
1591 *(uint8_t *)arg = b;
1592 break;
1593 default:
1594 return -ENOTSUP;
1595 }
1596 return 0;
1597}
1598
88a946d3 1599static CharDriverState *qemu_chr_open_pp_fd(int fd)
6972f935
BS		 1600{
1601 CharDriverState *chr;
6972f935 1602
7267c094 1603 chr = g_malloc0(sizeof(CharDriverState));
e0efb993 1604 chr->opaque = (void *)(intptr_t)fd;
6972f935
BS		 1605 chr->chr_write = null_chr_write;
1606 chr->chr_ioctl = pp_ioctl;
1f51470d 1607 return chr;
6972f935
BS		 1608}
1609#endif
1610
6f97dba0
AL		 1611#else /* _WIN32 */
1612
1613typedef struct {
1614 int max_size;
1615 HANDLE hcom, hrecv, hsend;
1616 OVERLAPPED orecv, osend;
1617 BOOL fpipe;
1618 DWORD len;
1619} WinCharState;
1620
db418a0a
FC		 1621typedef struct {
1622 HANDLE hStdIn;
1623 HANDLE hInputReadyEvent;
1624 HANDLE hInputDoneEvent;
1625 HANDLE hInputThread;
1626 uint8_t win_stdio_buf;
1627} WinStdioCharState;
1628
6f97dba0
AL		 1629#define NSENDBUF 2048
1630#define NRECVBUF 2048
1631#define MAXCONNECT 1
1632#define NTIMEOUT 5000
1633
1634static int win_chr_poll(void *opaque);
1635static int win_chr_pipe_poll(void *opaque);
1636
1637static void win_chr_close(CharDriverState *chr)
1638{
1639 WinCharState *s = chr->opaque;
1640
1641 if (s->hsend) {
1642 CloseHandle(s->hsend);
1643 s->hsend = NULL;
1644 }
1645 if (s->hrecv) {
1646 CloseHandle(s->hrecv);
1647 s->hrecv = NULL;
1648 }
1649 if (s->hcom) {
1650 CloseHandle(s->hcom);
1651 s->hcom = NULL;
1652 }
1653 if (s->fpipe)
1654 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1655 else
1656 qemu_del_polling_cb(win_chr_poll, chr);
793cbfb5 1657
a425d23f 1658 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1659}
1660
1661static int win_chr_init(CharDriverState *chr, const char *filename)
1662{
1663 WinCharState *s = chr->opaque;
1664 COMMCONFIG comcfg;
1665 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1666 COMSTAT comstat;
1667 DWORD size;
1668 DWORD err;
1669
1670 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1671 if (!s->hsend) {
1672 fprintf(stderr, "Failed CreateEvent\n");
1673 goto fail;
1674 }
1675 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1676 if (!s->hrecv) {
1677 fprintf(stderr, "Failed CreateEvent\n");
1678 goto fail;
1679 }
1680
1681 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1682 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1683 if (s->hcom == INVALID_HANDLE_VALUE) {
1684 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1685 s->hcom = NULL;
1686 goto fail;
1687 }
1688
1689 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1690 fprintf(stderr, "Failed SetupComm\n");
1691 goto fail;
1692 }
1693
1694 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1695 size = sizeof(COMMCONFIG);
1696 GetDefaultCommConfig(filename, &comcfg, &size);
1697 comcfg.dcb.DCBlength = sizeof(DCB);
1698 CommConfigDialog(filename, NULL, &comcfg);
1699
1700 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1701 fprintf(stderr, "Failed SetCommState\n");
1702 goto fail;
1703 }
1704
1705 if (!SetCommMask(s->hcom, EV_ERR)) {
1706 fprintf(stderr, "Failed SetCommMask\n");
1707 goto fail;
1708 }
1709
1710 cto.ReadIntervalTimeout = MAXDWORD;
1711 if (!SetCommTimeouts(s->hcom, &cto)) {
1712 fprintf(stderr, "Failed SetCommTimeouts\n");
1713 goto fail;
1714 }
1715
1716 if (!ClearCommError(s->hcom, &err, &comstat)) {
1717 fprintf(stderr, "Failed ClearCommError\n");
1718 goto fail;
1719 }
1720 qemu_add_polling_cb(win_chr_poll, chr);
1721 return 0;
1722
1723 fail:
1724 win_chr_close(chr);
1725 return -1;
1726}
1727
1728static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1729{
1730 WinCharState *s = chr->opaque;
1731 DWORD len, ret, size, err;
1732
1733 len = len1;
1734 ZeroMemory(&s->osend, sizeof(s->osend));
1735 s->osend.hEvent = s->hsend;
1736 while (len > 0) {
1737 if (s->hsend)
1738 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1739 else
1740 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1741 if (!ret) {
1742 err = GetLastError();
1743 if (err == ERROR_IO_PENDING) {
1744 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1745 if (ret) {
1746 buf += size;
1747 len -= size;
1748 } else {
1749 break;
1750 }
1751 } else {
1752 break;
1753 }
1754 } else {
1755 buf += size;
1756 len -= size;
1757 }
1758 }
1759 return len1 - len;
1760}
1761
1762static int win_chr_read_poll(CharDriverState *chr)
1763{
1764 WinCharState *s = chr->opaque;
1765
909cda12 1766 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 1767 return s->max_size;
1768}
1769
1770static void win_chr_readfile(CharDriverState *chr)
1771{
1772 WinCharState *s = chr->opaque;
1773 int ret, err;
9bd7854e 1774 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 1775 DWORD size;
1776
1777 ZeroMemory(&s->orecv, sizeof(s->orecv));
1778 s->orecv.hEvent = s->hrecv;
1779 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1780 if (!ret) {
1781 err = GetLastError();
1782 if (err == ERROR_IO_PENDING) {
1783 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1784 }
1785 }
1786
1787 if (size > 0) {
fa5efccb 1788 qemu_chr_be_write(chr, buf, size);
6f97dba0
AL		 1789 }
1790}
1791
1792static void win_chr_read(CharDriverState *chr)
1793{
1794 WinCharState *s = chr->opaque;
1795
1796 if (s->len > s->max_size)
1797 s->len = s->max_size;
1798 if (s->len == 0)
1799 return;
1800
1801 win_chr_readfile(chr);
1802}
1803
1804static int win_chr_poll(void *opaque)
1805{
1806 CharDriverState *chr = opaque;
1807 WinCharState *s = chr->opaque;
1808 COMSTAT status;
1809 DWORD comerr;
1810
1811 ClearCommError(s->hcom, &comerr, &status);
1812 if (status.cbInQue > 0) {
1813 s->len = status.cbInQue;
1814 win_chr_read_poll(chr);
1815 win_chr_read(chr);
1816 return 1;
1817 }
1818 return 0;
1819}
1820
d59044ef 1821static CharDriverState *qemu_chr_open_win_path(const char *filename)
6f97dba0
AL		 1822{
1823 CharDriverState *chr;
1824 WinCharState *s;
1825
7267c094
AL		 1826 chr = g_malloc0(sizeof(CharDriverState));
1827 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1828 chr->opaque = s;
1829 chr->chr_write = win_chr_write;
1830 chr->chr_close = win_chr_close;
1831
1832 if (win_chr_init(chr, filename) < 0) {
2e02e18b
SW		 1833 g_free(s);
1834 g_free(chr);
1f51470d 1835 return NULL;
6f97dba0 1836 }
127338e6 1837 qemu_chr_generic_open(chr);
1f51470d 1838 return chr;
6f97dba0
AL		 1839}
1840
1841static int win_chr_pipe_poll(void *opaque)
1842{
1843 CharDriverState *chr = opaque;
1844 WinCharState *s = chr->opaque;
1845 DWORD size;
1846
1847 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1848 if (size > 0) {
1849 s->len = size;
1850 win_chr_read_poll(chr);
1851 win_chr_read(chr);
1852 return 1;
1853 }
1854 return 0;
1855}
1856
1857static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1858{
1859 WinCharState *s = chr->opaque;
1860 OVERLAPPED ov;
1861 int ret;
1862 DWORD size;
1863 char openname[256];
1864
1865 s->fpipe = TRUE;
1866
1867 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1868 if (!s->hsend) {
1869 fprintf(stderr, "Failed CreateEvent\n");
1870 goto fail;
1871 }
1872 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1873 if (!s->hrecv) {
1874 fprintf(stderr, "Failed CreateEvent\n");
1875 goto fail;
1876 }
1877
1878 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1879 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1880 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1881 PIPE_WAIT,
1882 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1883 if (s->hcom == INVALID_HANDLE_VALUE) {
1884 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1885 s->hcom = NULL;
1886 goto fail;
1887 }
1888
1889 ZeroMemory(&ov, sizeof(ov));
1890 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1891 ret = ConnectNamedPipe(s->hcom, &ov);
1892 if (ret) {
1893 fprintf(stderr, "Failed ConnectNamedPipe\n");
1894 goto fail;
1895 }
1896
1897 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1898 if (!ret) {
1899 fprintf(stderr, "Failed GetOverlappedResult\n");
1900 if (ov.hEvent) {
1901 CloseHandle(ov.hEvent);
1902 ov.hEvent = NULL;
1903 }
1904 goto fail;
1905 }
1906
1907 if (ov.hEvent) {
1908 CloseHandle(ov.hEvent);
1909 ov.hEvent = NULL;
1910 }
1911 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1912 return 0;
1913
1914 fail:
1915 win_chr_close(chr);
1916 return -1;
1917}
1918
1919
548cbb36 1920static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
6f97dba0 1921{
548cbb36 1922 const char *filename = opts->device;
6f97dba0
AL		 1923 CharDriverState *chr;
1924 WinCharState *s;
1925
7267c094
AL		 1926 chr = g_malloc0(sizeof(CharDriverState));
1927 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1928 chr->opaque = s;
1929 chr->chr_write = win_chr_write;
1930 chr->chr_close = win_chr_close;
1931
1932 if (win_chr_pipe_init(chr, filename) < 0) {
2e02e18b
SW		 1933 g_free(s);
1934 g_free(chr);
1f51470d 1935 return NULL;
6f97dba0 1936 }
127338e6 1937 qemu_chr_generic_open(chr);
1f51470d 1938 return chr;
6f97dba0
AL		 1939}
1940
1f51470d 1941static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
6f97dba0
AL		 1942{
1943 CharDriverState *chr;
1944 WinCharState *s;
1945
7267c094
AL		 1946 chr = g_malloc0(sizeof(CharDriverState));
1947 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1948 s->hcom = fd_out;
1949 chr->opaque = s;
1950 chr->chr_write = win_chr_write;
127338e6 1951 qemu_chr_generic_open(chr);
1f51470d 1952 return chr;
6f97dba0
AL		 1953}
1954
d9ac374f 1955static CharDriverState *qemu_chr_open_win_con(void)
6f97dba0 1956{
1f51470d 1957 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
6f97dba0
AL		 1958}
1959
db418a0a
FC		 1960static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1961{
1962 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1963 DWORD dwSize;
1964 int len1;
1965
1966 len1 = len;
1967
1968 while (len1 > 0) {
1969 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1970 break;
1971 }
1972 buf += dwSize;
1973 len1 -= dwSize;
1974 }
1975
1976 return len - len1;
1977}
1978
1979static void win_stdio_wait_func(void *opaque)
1980{
1981 CharDriverState *chr = opaque;
1982 WinStdioCharState *stdio = chr->opaque;
1983 INPUT_RECORD buf[4];
1984 int ret;
1985 DWORD dwSize;
1986 int i;
1987
1988 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1989 &dwSize);
1990
1991 if (!ret) {
1992 /* Avoid error storm */
1993 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1994 return;
1995 }
1996
1997 for (i = 0; i < dwSize; i++) {
1998 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1999
2000 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2001 int j;
2002 if (kev->uChar.AsciiChar != 0) {
2003 for (j = 0; j < kev->wRepeatCount; j++) {
2004 if (qemu_chr_be_can_write(chr)) {
2005 uint8_t c = kev->uChar.AsciiChar;
2006 qemu_chr_be_write(chr, &c, 1);
2007 }
2008 }
2009 }
2010 }
2011 }
2012}
2013
2014static DWORD WINAPI win_stdio_thread(LPVOID param)
2015{
2016 CharDriverState *chr = param;
2017 WinStdioCharState *stdio = chr->opaque;
2018 int ret;
2019 DWORD dwSize;
2020
2021 while (1) {
2022
2023 /* Wait for one byte */
2024 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2025
2026 /* Exit in case of error, continue if nothing read */
2027 if (!ret) {
2028 break;
2029 }
2030 if (!dwSize) {
2031 continue;
2032 }
2033
2034 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2035 if (stdio->win_stdio_buf == '\r') {
2036 continue;
2037 }
2038
2039 /* Signal the main thread and wait until the byte was eaten */
2040 if (!SetEvent(stdio->hInputReadyEvent)) {
2041 break;
2042 }
2043 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2044 != WAIT_OBJECT_0) {
2045 break;
2046 }
2047 }
2048
2049 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2050 return 0;
2051}
2052
2053static void win_stdio_thread_wait_func(void *opaque)
2054{
2055 CharDriverState *chr = opaque;
2056 WinStdioCharState *stdio = chr->opaque;
2057
2058 if (qemu_chr_be_can_write(chr)) {
2059 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2060 }
2061
2062 SetEvent(stdio->hInputDoneEvent);
2063}
2064
2065static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2066{
2067 WinStdioCharState *stdio = chr->opaque;
2068 DWORD dwMode = 0;
2069
2070 GetConsoleMode(stdio->hStdIn, &dwMode);
2071
2072 if (echo) {
2073 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2074 } else {
2075 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2076 }
2077}
2078
2079static void win_stdio_close(CharDriverState *chr)
2080{
2081 WinStdioCharState *stdio = chr->opaque;
2082
2083 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2084 CloseHandle(stdio->hInputReadyEvent);
2085 }
2086 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2087 CloseHandle(stdio->hInputDoneEvent);
2088 }
2089 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2090 TerminateThread(stdio->hInputThread, 0);
2091 }
2092
2093 g_free(chr->opaque);
2094 g_free(chr);
db418a0a
FC		 2095}
2096
7c358031 2097static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
db418a0a
FC		 2098{
2099 CharDriverState *chr;
2100 WinStdioCharState *stdio;
2101 DWORD dwMode;
2102 int is_console = 0;
2103
db418a0a
FC		 2104 chr = g_malloc0(sizeof(CharDriverState));
2105 stdio = g_malloc0(sizeof(WinStdioCharState));
2106
2107 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2108 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2109 fprintf(stderr, "cannot open stdio: invalid handle\n");
2110 exit(1);
2111 }
2112
2113 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2114
2115 chr->opaque = stdio;
2116 chr->chr_write = win_stdio_write;
2117 chr->chr_close = win_stdio_close;
2118
ed7a1540
AL		 2119 if (is_console) {
2120 if (qemu_add_wait_object(stdio->hStdIn,
2121 win_stdio_wait_func, chr)) {
2122 fprintf(stderr, "qemu_add_wait_object: failed\n");
2123 }
2124 } else {
2125 DWORD dwId;
2126
2127 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2128 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2129 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2130 chr, 0, &dwId);
2131
2132 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2133 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2134 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2135 fprintf(stderr, "cannot create stdio thread or event\n");
2136 exit(1);
2137 }
2138 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2139 win_stdio_thread_wait_func, chr)) {
2140 fprintf(stderr, "qemu_add_wait_object: failed\n");
db418a0a
FC		 2141 }
2142 }
2143
2144 dwMode |= ENABLE_LINE_INPUT;
2145
ed7a1540 2146 if (is_console) {
db418a0a
FC		 2147 /* set the terminal in raw mode */
2148 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2149 dwMode |= ENABLE_PROCESSED_INPUT;
2150 }
2151
2152 SetConsoleMode(stdio->hStdIn, dwMode);
2153
2154 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2155 qemu_chr_fe_set_echo(chr, false);
2156
1f51470d 2157 return chr;
db418a0a 2158}
6f97dba0
AL		 2159#endif /* !_WIN32 */
2160
5ab8211b 2161
6f97dba0
AL		 2162/***********************************************************/
2163/* UDP Net console */
2164
2165typedef struct {
2166 int fd;
76a9644b
AL		 2167 GIOChannel *chan;
2168 guint tag;
9bd7854e 2169 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2170 int bufcnt;
2171 int bufptr;
2172 int max_size;
2173} NetCharDriver;
2174
2175static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2176{
2177 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2178 gsize bytes_written;
2179 GIOStatus status;
2180
2181 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2182 if (status == G_IO_STATUS_EOF) {
2183 return 0;
2184 } else if (status != G_IO_STATUS_NORMAL) {
2185 return -1;
2186 }
6f97dba0 2187
76a9644b 2188 return bytes_written;
6f97dba0
AL		 2189}
2190
2191static int udp_chr_read_poll(void *opaque)
2192{
2193 CharDriverState *chr = opaque;
2194 NetCharDriver *s = chr->opaque;
2195
909cda12 2196 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2197
2198 /* If there were any stray characters in the queue process them
2199 * first
2200 */
2201 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2202 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2203 s->bufptr++;
909cda12 2204 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2205 }
2206 return s->max_size;
2207}
2208
76a9644b 2209static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 2210{
2211 CharDriverState *chr = opaque;
2212 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2213 gsize bytes_read = 0;
2214 GIOStatus status;
6f97dba0
AL		 2215
2216 if (s->max_size == 0)
76a9644b
AL		 2217 return FALSE;
2218 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2219 &bytes_read, NULL);
2220 s->bufcnt = bytes_read;
6f97dba0 2221 s->bufptr = s->bufcnt;
76a9644b
AL		 2222 if (status != G_IO_STATUS_NORMAL) {
2223 return FALSE;
2224 }
6f97dba0
AL		 2225
2226 s->bufptr = 0;
2227 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2228 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2229 s->bufptr++;
909cda12 2230 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0 2231 }
76a9644b
AL		 2232
2233 return TRUE;
6f97dba0
AL		 2234}
2235
2236static void udp_chr_update_read_handler(CharDriverState *chr)
2237{
2238 NetCharDriver *s = chr->opaque;
2239
76a9644b
AL		 2240 if (s->tag) {
2241 g_source_remove(s->tag);
2242 s->tag = 0;
2243 }
2244
2245 if (s->chan) {
2246 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
6f97dba0
AL		 2247 }
2248}
2249
819f56b7
AL		 2250static void udp_chr_close(CharDriverState *chr)
2251{
2252 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2253 if (s->tag) {
2254 g_source_remove(s->tag);
2255 }
2256 if (s->chan) {
2257 g_io_channel_unref(s->chan);
819f56b7
AL		 2258 closesocket(s->fd);
2259 }
7267c094 2260 g_free(s);
a425d23f 2261 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
819f56b7
AL		 2262}
2263
1f51470d 2264static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
6f97dba0
AL		 2265{
2266 CharDriverState *chr = NULL;
2267 NetCharDriver *s = NULL;
87d5f24f 2268 Error *local_err = NULL;
6f97dba0 2269 int fd = -1;
6f97dba0 2270
7267c094
AL		 2271 chr = g_malloc0(sizeof(CharDriverState));
2272 s = g_malloc0(sizeof(NetCharDriver));
6f97dba0 2273
87d5f24f 2274 fd = inet_dgram_opts(opts, &local_err);
6f97dba0 2275 if (fd < 0) {
6f97dba0
AL		 2276 goto return_err;
2277 }
2278
2279 s->fd = fd;
76a9644b 2280 s->chan = io_channel_from_socket(s->fd);
6f97dba0
AL		 2281 s->bufcnt = 0;
2282 s->bufptr = 0;
2283 chr->opaque = s;
2284 chr->chr_write = udp_chr_write;
2285 chr->chr_update_read_handler = udp_chr_update_read_handler;
819f56b7 2286 chr->chr_close = udp_chr_close;
1f51470d 2287 return chr;
6f97dba0
AL		 2288
2289return_err:
87d5f24f
PB		 2290 if (local_err) {
2291 qerror_report_err(local_err);
2292 error_free(local_err);
2293 }
7267c094
AL		 2294 g_free(chr);
2295 g_free(s);
6e1db57b 2296 if (fd >= 0) {
6f97dba0 2297 closesocket(fd);
6e1db57b 2298 }
1f51470d 2299 return NULL;
6f97dba0
AL		 2300}
2301
2302/***********************************************************/
2303/* TCP Net console */
2304
2305typedef struct {
2ea5a7af
AL		 2306
2307 GIOChannel *chan, *listen_chan;
2308 guint tag, listen_tag;
6f97dba0
AL		 2309 int fd, listen_fd;
2310 int connected;
2311 int max_size;
2312 int do_telnetopt;
2313 int do_nodelay;
2314 int is_unix;
7d174059 2315 int msgfd;
6f97dba0
AL		 2316} TCPCharDriver;
2317
2ea5a7af 2318static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
6f97dba0
AL		 2319
2320static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2321{
2322 TCPCharDriver *s = chr->opaque;
2323 if (s->connected) {
2ea5a7af 2324 return io_channel_send_all(s->chan, buf, len);
455aa1e0 2325 } else {
6db0fdce 2326 /* XXX: indicate an error ? */
455aa1e0 2327 return len;
6f97dba0
AL		 2328 }
2329}
2330
2331static int tcp_chr_read_poll(void *opaque)
2332{
2333 CharDriverState *chr = opaque;
2334 TCPCharDriver *s = chr->opaque;
2335 if (!s->connected)
2336 return 0;
909cda12 2337 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2338 return s->max_size;
2339}
2340
2341#define IAC 255
2342#define IAC_BREAK 243
2343static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2344 TCPCharDriver *s,
2345 uint8_t *buf, int *size)
2346{
2347 /* Handle any telnet client's basic IAC options to satisfy char by
2348 * char mode with no echo. All IAC options will be removed from
2349 * the buf and the do_telnetopt variable will be used to track the
2350 * state of the width of the IAC information.
2351 *
2352 * IAC commands come in sets of 3 bytes with the exception of the
2353 * "IAC BREAK" command and the double IAC.
2354 */
2355
2356 int i;
2357 int j = 0;
2358
2359 for (i = 0; i < *size; i++) {
2360 if (s->do_telnetopt > 1) {
2361 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2362 /* Double IAC means send an IAC */
2363 if (j != i)
2364 buf[j] = buf[i];
2365 j++;
2366 s->do_telnetopt = 1;
2367 } else {
2368 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2369 /* Handle IAC break commands by sending a serial break */
a425d23f 2370 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 2371 s->do_telnetopt++;
2372 }
2373 s->do_telnetopt++;
2374 }
2375 if (s->do_telnetopt >= 4) {
2376 s->do_telnetopt = 1;
2377 }
2378 } else {
2379 if ((unsigned char)buf[i] == IAC) {
2380 s->do_telnetopt = 2;
2381 } else {
2382 if (j != i)
2383 buf[j] = buf[i];
2384 j++;
2385 }
2386 }
2387 }
2388 *size = j;
2389}
2390
7d174059
MM		 2391static int tcp_get_msgfd(CharDriverState *chr)
2392{
2393 TCPCharDriver *s = chr->opaque;
e53f27b9
PB		 2394 int fd = s->msgfd;
2395 s->msgfd = -1;
2396 return fd;
7d174059
MM		 2397}
2398
73bcc2ac 2399#ifndef _WIN32
7d174059
MM		 2400static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2401{
2402 TCPCharDriver *s = chr->opaque;
2403 struct cmsghdr *cmsg;
2404
2405 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2406 int fd;
2407
2408 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2409 cmsg->cmsg_level != SOL_SOCKET ||
2410 cmsg->cmsg_type != SCM_RIGHTS)
2411 continue;
2412
2413 fd = *((int *)CMSG_DATA(cmsg));
2414 if (fd < 0)
2415 continue;
2416
06138651
CB		 2417#ifndef MSG_CMSG_CLOEXEC
2418 qemu_set_cloexec(fd);
2419#endif
7d174059
MM		 2420 if (s->msgfd != -1)
2421 close(s->msgfd);
2422 s->msgfd = fd;
2423 }
2424}
2425
9977c894
MM		 2426static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2427{
2428 TCPCharDriver *s = chr->opaque;
7cba04f6 2429 struct msghdr msg = { NULL, };
9977c894 2430 struct iovec iov[1];
7d174059
MM		 2431 union {
2432 struct cmsghdr cmsg;
2433 char control[CMSG_SPACE(sizeof(int))];
2434 } msg_control;
06138651 2435 int flags = 0;
7d174059 2436 ssize_t ret;
9977c894
MM		 2437
2438 iov[0].iov_base = buf;
2439 iov[0].iov_len = len;
2440
2441 msg.msg_iov = iov;
2442 msg.msg_iovlen = 1;
7d174059
MM		 2443 msg.msg_control = &msg_control;
2444 msg.msg_controllen = sizeof(msg_control);
2445
06138651
CB		 2446#ifdef MSG_CMSG_CLOEXEC
2447 flags |= MSG_CMSG_CLOEXEC;
2448#endif
2449 ret = recvmsg(s->fd, &msg, flags);
2450 if (ret > 0 && s->is_unix) {
7d174059 2451 unix_process_msgfd(chr, &msg);
06138651 2452 }
9977c894 2453
7d174059 2454 return ret;
9977c894
MM		 2455}
2456#else
2457static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2458{
2459 TCPCharDriver *s = chr->opaque;
00aa0040 2460 return qemu_recv(s->fd, buf, len, 0);
9977c894
MM		 2461}
2462#endif
2463
d3cc5bc4
AS		 2464static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2465{
2466 TCPCharDriver *s = chr->opaque;
2467 return g_io_create_watch(s->chan, cond);
2468}
2469
2ea5a7af 2470static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 2471{
2472 CharDriverState *chr = opaque;
2473 TCPCharDriver *s = chr->opaque;
9bd7854e 2474 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2475 int len, size;
2476
2ea5a7af
AL		 2477 if (!s->connected || s->max_size <= 0) {
2478 return FALSE;
2479 }
6f97dba0
AL		 2480 len = sizeof(buf);
2481 if (len > s->max_size)
2482 len = s->max_size;
9977c894 2483 size = tcp_chr_recv(chr, (void *)buf, len);
6f97dba0
AL		 2484 if (size == 0) {
2485 /* connection closed */
2486 s->connected = 0;
2ea5a7af
AL		 2487 if (s->listen_chan) {
2488 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
6f97dba0 2489 }
2ea5a7af
AL		 2490 g_source_remove(s->tag);
2491 s->tag = 0;
2492 g_io_channel_unref(s->chan);
2493 s->chan = NULL;
6f97dba0
AL		 2494 closesocket(s->fd);
2495 s->fd = -1;
a425d23f 2496 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2497 } else if (size > 0) {
2498 if (s->do_telnetopt)
2499 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2500 if (size > 0)
fa5efccb 2501 qemu_chr_be_write(chr, buf, size);
6f97dba0 2502 }
2ea5a7af
AL		 2503
2504 return TRUE;
6f97dba0
AL		 2505}
2506
68c18d1c
BS		 2507#ifndef _WIN32
2508CharDriverState *qemu_chr_open_eventfd(int eventfd)
2509{
6cbf4c8c 2510 return qemu_chr_open_fd(eventfd, eventfd);
6cbf4c8c 2511}
68c18d1c 2512#endif
6cbf4c8c 2513
6f97dba0
AL		 2514static void tcp_chr_connect(void *opaque)
2515{
2516 CharDriverState *chr = opaque;
2517 TCPCharDriver *s = chr->opaque;
2518
2519 s->connected = 1;
2ea5a7af
AL		 2520 if (s->chan) {
2521 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
bbdd2ad0 2522 }
127338e6 2523 qemu_chr_generic_open(chr);
6f97dba0
AL		 2524}
2525
2526#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2527static void tcp_chr_telnet_init(int fd)
2528{
2529 char buf[3];
2530 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2531 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2532 send(fd, (char *)buf, 3, 0);
2533 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2534 send(fd, (char *)buf, 3, 0);
2535 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2536 send(fd, (char *)buf, 3, 0);
2537 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2538 send(fd, (char *)buf, 3, 0);
2539}
2540
13661089
DB		 2541static int tcp_chr_add_client(CharDriverState *chr, int fd)
2542{
2543 TCPCharDriver *s = chr->opaque;
2544 if (s->fd != -1)
2545 return -1;
2546
2547 socket_set_nonblock(fd);
2548 if (s->do_nodelay)
2549 socket_set_nodelay(fd);
2550 s->fd = fd;
2ea5a7af
AL		 2551 s->chan = io_channel_from_socket(fd);
2552 g_source_remove(s->listen_tag);
2553 s->listen_tag = 0;
13661089
DB		 2554 tcp_chr_connect(chr);
2555
2556 return 0;
2557}
2558
2ea5a7af 2559static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
6f97dba0
AL		 2560{
2561 CharDriverState *chr = opaque;
2562 TCPCharDriver *s = chr->opaque;
2563 struct sockaddr_in saddr;
2564#ifndef _WIN32
2565 struct sockaddr_un uaddr;
2566#endif
2567 struct sockaddr *addr;
2568 socklen_t len;
2569 int fd;
2570
2571 for(;;) {
2572#ifndef _WIN32
2573 if (s->is_unix) {
2574 len = sizeof(uaddr);
2575 addr = (struct sockaddr *)&uaddr;
2576 } else
2577#endif
2578 {
2579 len = sizeof(saddr);
2580 addr = (struct sockaddr *)&saddr;
2581 }
40ff6d7e 2582 fd = qemu_accept(s->listen_fd, addr, &len);
6f97dba0 2583 if (fd < 0 && errno != EINTR) {
2ea5a7af 2584 return FALSE;
6f97dba0
AL		 2585 } else if (fd >= 0) {
2586 if (s->do_telnetopt)
2587 tcp_chr_telnet_init(fd);
2588 break;
2589 }
2590 }
13661089
DB		 2591 if (tcp_chr_add_client(chr, fd) < 0)
2592 close(fd);
2ea5a7af
AL		 2593
2594 return TRUE;
6f97dba0
AL		 2595}
2596
2597static void tcp_chr_close(CharDriverState *chr)
2598{
2599 TCPCharDriver *s = chr->opaque;
819f56b7 2600 if (s->fd >= 0) {
2ea5a7af
AL		 2601 if (s->tag) {
2602 g_source_remove(s->tag);
2603 }
2604 if (s->chan) {
2605 g_io_channel_unref(s->chan);
2606 }
6f97dba0 2607 closesocket(s->fd);
819f56b7
AL		 2608 }
2609 if (s->listen_fd >= 0) {
2ea5a7af
AL		 2610 if (s->listen_tag) {
2611 g_source_remove(s->listen_tag);
2612 }
2613 if (s->listen_chan) {
2614 g_io_channel_unref(s->listen_chan);
2615 }
6f97dba0 2616 closesocket(s->listen_fd);
819f56b7 2617 }
7267c094 2618 g_free(s);
a425d23f 2619 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2620}
2621
f6bd5d6e
GH		 2622static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2623 bool is_listen, bool is_telnet,
2624 bool is_waitconnect,
2625 Error **errp)
6f97dba0
AL		 2626{
2627 CharDriverState *chr = NULL;
2628 TCPCharDriver *s = NULL;
f6bd5d6e
GH		 2629 char host[NI_MAXHOST], serv[NI_MAXSERV];
2630 const char *left = "", *right = "";
2631 struct sockaddr_storage ss;
2632 socklen_t ss_len = sizeof(ss);
2633
2634 memset(&ss, 0, ss_len);
2635 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2636 error_setg(errp, "getsockname: %s", strerror(errno));
2637 return NULL;
2638 }
2639
2640 chr = g_malloc0(sizeof(CharDriverState));
2641 s = g_malloc0(sizeof(TCPCharDriver));
2642
2643 s->connected = 0;
2644 s->fd = -1;
2645 s->listen_fd = -1;
2646 s->msgfd = -1;
2647
2648 chr->filename = g_malloc(256);
2649 switch (ss.ss_family) {
2650#ifndef _WIN32
2651 case AF_UNIX:
2652 s->is_unix = 1;
2653 snprintf(chr->filename, 256, "unix:%s%s",
2654 ((struct sockaddr_un *)(&ss))->sun_path,
2655 is_listen ? ",server" : "");
2656 break;
2657#endif
2658 case AF_INET6:
2659 left = "[";
2660 right = "]";
2661 /* fall through */
2662 case AF_INET:
2663 s->do_nodelay = do_nodelay;
2664 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2665 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2666 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2667 is_telnet ? "telnet" : "tcp",
2668 left, host, right, serv,
2669 is_listen ? ",server" : "");
2670 break;
2671 }
2672
2673 chr->opaque = s;
2674 chr->chr_write = tcp_chr_write;
2675 chr->chr_close = tcp_chr_close;
2676 chr->get_msgfd = tcp_get_msgfd;
2677 chr->chr_add_client = tcp_chr_add_client;
d3cc5bc4 2678 chr->chr_add_watch = tcp_chr_add_watch;
f6bd5d6e
GH		 2679
2680 if (is_listen) {
2681 s->listen_fd = fd;
2ea5a7af
AL		 2682 s->listen_chan = io_channel_from_socket(s->listen_fd);
2683 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
f6bd5d6e
GH		 2684 if (is_telnet) {
2685 s->do_telnetopt = 1;
2686 }
2687 } else {
2688 s->connected = 1;
2689 s->fd = fd;
2690 socket_set_nodelay(fd);
2ea5a7af 2691 s->chan = io_channel_from_socket(s->fd);
f6bd5d6e
GH		 2692 tcp_chr_connect(chr);
2693 }
2694
2695 if (is_listen && is_waitconnect) {
2696 printf("QEMU waiting for connection on: %s\n",
2697 chr->filename);
2ea5a7af 2698 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
f6bd5d6e
GH		 2699 socket_set_nonblock(s->listen_fd);
2700 }
2701 return chr;
2702}
2703
2704static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2705{
2706 CharDriverState *chr = NULL;
87d5f24f 2707 Error *local_err = NULL;
aeb2c47a
GH		 2708 int fd = -1;
2709 int is_listen;
2710 int is_waitconnect;
2711 int do_nodelay;
2712 int is_unix;
2713 int is_telnet;
2714
2715 is_listen = qemu_opt_get_bool(opts, "server", 0);
2716 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2717 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2718 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2719 is_unix = qemu_opt_get(opts, "path") != NULL;
6f97dba0
AL		 2720 if (!is_listen)
2721 is_waitconnect = 0;
2722
f07b6003
AL		 2723 if (is_unix) {
2724 if (is_listen) {
87d5f24f 2725 fd = unix_listen_opts(opts, &local_err);
f07b6003 2726 } else {
87d5f24f 2727 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2728 }
2729 } else {
2730 if (is_listen) {
87d5f24f 2731 fd = inet_listen_opts(opts, 0, &local_err);
f07b6003 2732 } else {
87d5f24f 2733 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2734 }
2735 }
a89dd6c3 2736 if (fd < 0) {
6f97dba0 2737 goto fail;
a89dd6c3 2738 }
6f97dba0
AL		 2739
2740 if (!is_waitconnect)
2741 socket_set_nonblock(fd);
2742
f6bd5d6e
GH		 2743 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2744 is_waitconnect, &local_err);
2745 if (error_is_set(&local_err)) {
2746 goto fail;
6f97dba0 2747 }
1f51470d 2748 return chr;
aeb2c47a 2749
f6bd5d6e 2750
6f97dba0 2751 fail:
87d5f24f
PB		 2752 if (local_err) {
2753 qerror_report_err(local_err);
2754 error_free(local_err);
2755 }
2756 if (fd >= 0) {
6f97dba0 2757 closesocket(fd);
87d5f24f 2758 }
f6bd5d6e
GH		 2759 if (chr) {
2760 g_free(chr->opaque);
2761 g_free(chr);
2762 }
1f51470d 2763 return NULL;
6f97dba0
AL		 2764}
2765
999bd67c
LC		 2766/***********************************************************/
2767/* Memory chardev */
2768typedef struct {
2769 size_t outbuf_size;
2770 size_t outbuf_capacity;
2771 uint8_t *outbuf;
2772} MemoryDriver;
2773
2774static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2775{
2776 MemoryDriver *d = chr->opaque;
2777
2778 /* TODO: the QString implementation has the same code, we should
2779 * introduce a generic way to do this in cutils.c */
2780 if (d->outbuf_capacity < d->outbuf_size + len) {
2781 /* grow outbuf */
2782 d->outbuf_capacity += len;
2783 d->outbuf_capacity *= 2;
7267c094 2784 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
999bd67c
LC		 2785 }
2786
2787 memcpy(d->outbuf + d->outbuf_size, buf, len);
2788 d->outbuf_size += len;
2789
2790 return len;
2791}
2792
2793void qemu_chr_init_mem(CharDriverState *chr)
2794{
2795 MemoryDriver *d;
2796
7267c094 2797 d = g_malloc(sizeof(*d));
999bd67c
LC		 2798 d->outbuf_size = 0;
2799 d->outbuf_capacity = 4096;
7267c094 2800 d->outbuf = g_malloc0(d->outbuf_capacity);
999bd67c
LC		 2801
2802 memset(chr, 0, sizeof(*chr));
2803 chr->opaque = d;
2804 chr->chr_write = mem_chr_write;
2805}
2806
2807QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2808{
2809 MemoryDriver *d = chr->opaque;
2810 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2811}
2812
70f24fb6 2813/* NOTE: this driver can not be closed with qemu_chr_delete()! */
999bd67c
LC		 2814void qemu_chr_close_mem(CharDriverState *chr)
2815{
2816 MemoryDriver *d = chr->opaque;
2817
7267c094
AL		 2818 g_free(d->outbuf);
2819 g_free(chr->opaque);
999bd67c
LC		 2820 chr->opaque = NULL;
2821 chr->chr_write = NULL;
2822}
2823
2824size_t qemu_chr_mem_osize(const CharDriverState *chr)
2825{
2826 const MemoryDriver *d = chr->opaque;
2827 return d->outbuf_size;
2828}
2829
51767e7c 2830/*********************************************************/
3949e594 2831/* Ring buffer chardev */
51767e7c
LL		 2832
2833typedef struct {
2834 size_t size;
2835 size_t prod;
2836 size_t cons;
2837 uint8_t *cbuf;
3949e594 2838} RingBufCharDriver;
51767e7c 2839
3949e594 2840static size_t ringbuf_count(const CharDriverState *chr)
51767e7c 2841{
3949e594 2842 const RingBufCharDriver *d = chr->opaque;
51767e7c 2843
5c230105 2844 return d->prod - d->cons;
51767e7c
LL		 2845}
2846
3949e594 2847static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
51767e7c 2848{
3949e594 2849 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2850 int i;
2851
2852 if (!buf || (len < 0)) {
2853 return -1;
2854 }
2855
2856 for (i = 0; i < len; i++ ) {
5c230105
MA		 2857 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2858 if (d->prod - d->cons > d->size) {
51767e7c
LL		 2859 d->cons = d->prod - d->size;
2860 }
2861 }
2862
2863 return 0;
2864}
2865
3949e594 2866static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
51767e7c 2867{
3949e594 2868 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2869 int i;
2870
5c230105
MA		 2871 for (i = 0; i < len && d->cons != d->prod; i++) {
2872 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
51767e7c
LL		 2873 }
2874
2875 return i;
2876}
2877
3949e594 2878static void ringbuf_chr_close(struct CharDriverState *chr)
51767e7c 2879{
3949e594 2880 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2881
2882 g_free(d->cbuf);
2883 g_free(d);
2884 chr->opaque = NULL;
2885}
2886
1da48c65
GH		 2887static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
2888 Error **errp)
51767e7c
LL		 2889{
2890 CharDriverState *chr;
3949e594 2891 RingBufCharDriver *d;
51767e7c
LL		 2892
2893 chr = g_malloc0(sizeof(CharDriverState));
2894 d = g_malloc(sizeof(*d));
2895
1da48c65 2896 d->size = opts->has_size ? opts->size : 65536;
51767e7c
LL		 2897
2898 /* The size must be power of 2 */
2899 if (d->size & (d->size - 1)) {
1da48c65 2900 error_setg(errp, "size of ringbuf chardev must be power of two");
51767e7c
LL		 2901 goto fail;
2902 }
2903
2904 d->prod = 0;
2905 d->cons = 0;
2906 d->cbuf = g_malloc0(d->size);
2907
2908 chr->opaque = d;
3949e594
MA		 2909 chr->chr_write = ringbuf_chr_write;
2910 chr->chr_close = ringbuf_chr_close;
51767e7c
LL		 2911
2912 return chr;
2913
2914fail:
2915 g_free(d);
2916 g_free(chr);
2917 return NULL;
2918}
2919
3949e594 2920static bool chr_is_ringbuf(const CharDriverState *chr)
1f590cf9 2921{
3949e594 2922 return chr->chr_write == ringbuf_chr_write;
1f590cf9
LL		 2923}
2924
3949e594 2925void qmp_ringbuf_write(const char *device, const char *data,
82e59a67 2926 bool has_format, enum DataFormat format,
1f590cf9
LL		 2927 Error **errp)
2928{
2929 CharDriverState *chr;
c4f331b6 2930 const uint8_t *write_data;
1f590cf9 2931 int ret;
c4f331b6 2932 size_t write_count;
1f590cf9
LL		 2933
2934 chr = qemu_chr_find(device);
2935 if (!chr) {
1a69278e 2936 error_setg(errp, "Device '%s' not found", device);
1f590cf9
LL		 2937 return;
2938 }
2939
3949e594
MA		 2940 if (!chr_is_ringbuf(chr)) {
2941 error_setg(errp,"%s is not a ringbuf device", device);
1f590cf9
LL		 2942 return;
2943 }
2944
1f590cf9
LL		 2945 if (has_format && (format == DATA_FORMAT_BASE64)) {
2946 write_data = g_base64_decode(data, &write_count);
2947 } else {
2948 write_data = (uint8_t *)data;
82e59a67 2949 write_count = strlen(data);
1f590cf9
LL		 2950 }
2951
3949e594 2952 ret = ringbuf_chr_write(chr, write_data, write_count);
1f590cf9 2953
13289fb5
MA		 2954 if (write_data != (uint8_t *)data) {
2955 g_free((void *)write_data);
2956 }
2957
1f590cf9
LL		 2958 if (ret < 0) {
2959 error_setg(errp, "Failed to write to device %s", device);
2960 return;
2961 }
2962}
2963
3949e594 2964char *qmp_ringbuf_read(const char *device, int64_t size,
3ab651fc
MA		 2965 bool has_format, enum DataFormat format,
2966 Error **errp)
49b6d722
LL		 2967{
2968 CharDriverState *chr;
c4f331b6 2969 uint8_t *read_data;
49b6d722 2970 size_t count;
3ab651fc 2971 char *data;
49b6d722
LL		 2972
2973 chr = qemu_chr_find(device);
2974 if (!chr) {
1a69278e 2975 error_setg(errp, "Device '%s' not found", device);
49b6d722
LL		 2976 return NULL;
2977 }
2978
3949e594
MA		 2979 if (!chr_is_ringbuf(chr)) {
2980 error_setg(errp,"%s is not a ringbuf device", device);
49b6d722
LL		 2981 return NULL;
2982 }
2983
2984 if (size <= 0) {
2985 error_setg(errp, "size must be greater than zero");
2986 return NULL;
2987 }
2988
3949e594 2989 count = ringbuf_count(chr);
49b6d722 2990 size = size > count ? count : size;
44f3bcd2 2991 read_data = g_malloc(size + 1);
49b6d722 2992
3949e594 2993 ringbuf_chr_read(chr, read_data, size);
49b6d722
LL		 2994
2995 if (has_format && (format == DATA_FORMAT_BASE64)) {
3ab651fc 2996 data = g_base64_encode(read_data, size);
13289fb5 2997 g_free(read_data);
49b6d722 2998 } else {
3949e594
MA		 2999 /*
3000 * FIXME should read only complete, valid UTF-8 characters up
3001 * to @size bytes. Invalid sequences should be replaced by a
3002 * suitable replacement character. Except when (and only
3003 * when) ring buffer lost characters since last read, initial
3004 * continuation characters should be dropped.
3005 */
44f3bcd2 3006 read_data[size] = 0;
3ab651fc 3007 data = (char *)read_data;
49b6d722
LL		 3008 }
3009
3ab651fc 3010 return data;
49b6d722
LL		 3011}
3012
33521634 3013QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
191bc01b 3014{
6ea314d9 3015 char host[65], port[33], width[8], height[8];
aeb2c47a 3016 int pos;
7d31544f 3017 const char *p;
191bc01b 3018 QemuOpts *opts;
8be7e7e4 3019 Error *local_err = NULL;
191bc01b 3020
8be7e7e4
LC		 3021 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3022 if (error_is_set(&local_err)) {
3023 qerror_report_err(local_err);
3024 error_free(local_err);
191bc01b 3025 return NULL;
8be7e7e4 3026 }
191bc01b 3027
7591c5c1
GH		 3028 if (strstart(filename, "mon:", &p)) {
3029 filename = p;
3030 qemu_opt_set(opts, "mux", "on");
3031 }
3032
f0457e8d
GH		 3033 if (strcmp(filename, "null") == 0 ||
3034 strcmp(filename, "pty") == 0 ||
3035 strcmp(filename, "msmouse") == 0 ||
dc1c21e6 3036 strcmp(filename, "braille") == 0 ||
f0457e8d 3037 strcmp(filename, "stdio") == 0) {
4490dadf 3038 qemu_opt_set(opts, "backend", filename);
191bc01b
GH		 3039 return opts;
3040 }
6ea314d9
GH		 3041 if (strstart(filename, "vc", &p)) {
3042 qemu_opt_set(opts, "backend", "vc");
3043 if (*p == ':') {
3044 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3045 /* pixels */
3046 qemu_opt_set(opts, "width", width);
3047 qemu_opt_set(opts, "height", height);
3048 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3049 /* chars */
3050 qemu_opt_set(opts, "cols", width);
3051 qemu_opt_set(opts, "rows", height);
3052 } else {
3053 goto fail;
3054 }
3055 }
3056 return opts;
3057 }
d6c983cd
GH		 3058 if (strcmp(filename, "con:") == 0) {
3059 qemu_opt_set(opts, "backend", "console");
3060 return opts;
3061 }
48b76496
GH		 3062 if (strstart(filename, "COM", NULL)) {
3063 qemu_opt_set(opts, "backend", "serial");
3064 qemu_opt_set(opts, "path", filename);
3065 return opts;
3066 }
7d31544f
GH		 3067 if (strstart(filename, "file:", &p)) {
3068 qemu_opt_set(opts, "backend", "file");
3069 qemu_opt_set(opts, "path", p);
3070 return opts;
3071 }
3072 if (strstart(filename, "pipe:", &p)) {
3073 qemu_opt_set(opts, "backend", "pipe");
3074 qemu_opt_set(opts, "path", p);
3075 return opts;
3076 }
aeb2c47a
GH		 3077 if (strstart(filename, "tcp:", &p) ||
3078 strstart(filename, "telnet:", &p)) {
3079 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3080 host[0] = 0;
3081 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3082 goto fail;
3083 }
3084 qemu_opt_set(opts, "backend", "socket");
3085 qemu_opt_set(opts, "host", host);
3086 qemu_opt_set(opts, "port", port);
3087 if (p[pos] == ',') {
3088 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3089 goto fail;
3090 }
3091 if (strstart(filename, "telnet:", &p))
3092 qemu_opt_set(opts, "telnet", "on");
3093 return opts;
3094 }
7e1b35b4
GH		 3095 if (strstart(filename, "udp:", &p)) {
3096 qemu_opt_set(opts, "backend", "udp");
3097 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3098 host[0] = 0;
39324ca4 3099 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
7e1b35b4
GH		 3100 goto fail;
3101 }
3102 }
3103 qemu_opt_set(opts, "host", host);
3104 qemu_opt_set(opts, "port", port);
3105 if (p[pos] == '@') {
3106 p += pos + 1;
3107 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3108 host[0] = 0;
3109 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
7e1b35b4
GH		 3110 goto fail;
3111 }
3112 }
3113 qemu_opt_set(opts, "localaddr", host);
3114 qemu_opt_set(opts, "localport", port);
3115 }
3116 return opts;
3117 }
aeb2c47a
GH		 3118 if (strstart(filename, "unix:", &p)) {
3119 qemu_opt_set(opts, "backend", "socket");
3120 if (qemu_opts_do_parse(opts, p, "path") != 0)
3121 goto fail;
3122 return opts;
3123 }
48b76496
GH		 3124 if (strstart(filename, "/dev/parport", NULL) ||
3125 strstart(filename, "/dev/ppi", NULL)) {
3126 qemu_opt_set(opts, "backend", "parport");
3127 qemu_opt_set(opts, "path", filename);
3128 return opts;
3129 }
3130 if (strstart(filename, "/dev/", NULL)) {
3131 qemu_opt_set(opts, "backend", "tty");
3132 qemu_opt_set(opts, "path", filename);
3133 return opts;
3134 }
191bc01b 3135
aeb2c47a 3136fail:
191bc01b
GH		 3137 qemu_opts_del(opts);
3138 return NULL;
3139}
3140
846e2e49
GH		 3141static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3142 Error **errp)
3143{
3144 const char *path = qemu_opt_get(opts, "path");
3145
3146 if (path == NULL) {
3147 error_setg(errp, "chardev: file: no filename given");
3148 return;
3149 }
3150 backend->file = g_new0(ChardevFile, 1);
3151 backend->file->out = g_strdup(path);
3152}
3153
7c358031
GH		 3154static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3155 Error **errp)
3156{
3157 backend->stdio = g_new0(ChardevStdio, 1);
3158 backend->stdio->has_signal = true;
3159 backend->stdio->signal =
3160 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3161}
3162
0f1cb51d
GH		 3163static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3164 Error **errp)
3165{
3166 const char *device = qemu_opt_get(opts, "path");
3167
3168 if (device == NULL) {
3169 error_setg(errp, "chardev: serial/tty: no device path given");
3170 return;
3171 }
3172 backend->serial = g_new0(ChardevHostdev, 1);
3173 backend->serial->device = g_strdup(device);
3174}
3175
dc375097
GH		 3176static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3177 Error **errp)
3178{
3179 const char *device = qemu_opt_get(opts, "path");
3180
3181 if (device == NULL) {
3182 error_setg(errp, "chardev: parallel: no device path given");
3183 return;
3184 }
3185 backend->parallel = g_new0(ChardevHostdev, 1);
3186 backend->parallel->device = g_strdup(device);
3187}
3188
548cbb36
GH		 3189static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3190 Error **errp)
3191{
3192 const char *device = qemu_opt_get(opts, "path");
3193
3194 if (device == NULL) {
3195 error_setg(errp, "chardev: pipe: no device path given");
3196 return;
3197 }
3198 backend->pipe = g_new0(ChardevHostdev, 1);
3199 backend->pipe->device = g_strdup(device);
3200}
3201
1da48c65
GH		 3202static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
3203 Error **errp)
3204{
3205 int val;
3206
3207 backend->memory = g_new0(ChardevRingbuf, 1);
3208
3209 val = qemu_opt_get_number(opts, "size", 0);
3210 if (val != 0) {
3211 backend->memory->has_size = true;
3212 backend->memory->size = val;
3213 }
3214}
3215
d654f34e 3216typedef struct CharDriver {
191bc01b 3217 const char *name;
2c5f4882 3218 /* old, pre qapi */
1f51470d 3219 CharDriverState *(*open)(QemuOpts *opts);
2c5f4882
GH		 3220 /* new, qapi-based */
3221 int kind;
3222 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
d654f34e
AL		 3223} CharDriver;
3224
3225static GSList *backends;
3226
3227void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3228{
3229 CharDriver *s;
3230
3231 s = g_malloc0(sizeof(*s));
3232 s->name = g_strdup(name);
3233 s->open = open;
3234
3235 backends = g_slist_append(backends, s);
3236}
191bc01b 3237
2c5f4882
GH		 3238void register_char_driver_qapi(const char *name, int kind,
3239 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3240{
3241 CharDriver *s;
3242
3243 s = g_malloc0(sizeof(*s));
3244 s->name = g_strdup(name);
3245 s->kind = kind;
3246 s->parse = parse;
3247
3248 backends = g_slist_append(backends, s);
3249}
3250
f69554b9 3251CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
bd2d80b2
GH		 3252 void (*init)(struct CharDriverState *s),
3253 Error **errp)
191bc01b 3254{
d654f34e 3255 CharDriver *cd;
191bc01b 3256 CharDriverState *chr;
d654f34e 3257 GSList *i;
191bc01b
GH		 3258
3259 if (qemu_opts_id(opts) == NULL) {
312fd5f2 3260 error_setg(errp, "chardev: no id specified");
2274ae9d 3261 goto err;
191bc01b
GH		 3262 }
3263
1bbd185f 3264 if (qemu_opt_get(opts, "backend") == NULL) {
312fd5f2 3265 error_setg(errp, "chardev: \"%s\" missing backend",
bd2d80b2 3266 qemu_opts_id(opts));
2274ae9d 3267 goto err;
1bbd185f 3268 }
d654f34e
AL		 3269 for (i = backends; i; i = i->next) {
3270 cd = i->data;
3271
3272 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
191bc01b 3273 break;
d654f34e 3274 }
191bc01b 3275 }
d654f34e 3276 if (i == NULL) {
312fd5f2 3277 error_setg(errp, "chardev: backend \"%s\" not found",
bd2d80b2 3278 qemu_opt_get(opts, "backend"));
d654f34e 3279 return NULL;
191bc01b
GH		 3280 }
3281
2c5f4882
GH		 3282 if (!cd->open) {
3283 /* using new, qapi init */
3284 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3285 ChardevReturn *ret = NULL;
3286 const char *id = qemu_opts_id(opts);
edb2fb3c
GH		 3287 const char *bid = NULL;
3288
3289 if (qemu_opt_get_bool(opts, "mux", 0)) {
3290 bid = g_strdup_printf("%s-base", id);
3291 }
2c5f4882
GH		 3292
3293 chr = NULL;
3294 backend->kind = cd->kind;
3295 if (cd->parse) {
3296 cd->parse(opts, backend, errp);
3297 if (error_is_set(errp)) {
3298 goto qapi_out;
3299 }
3300 }
edb2fb3c 3301 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
2c5f4882
GH		 3302 if (error_is_set(errp)) {
3303 goto qapi_out;
3304 }
edb2fb3c
GH		 3305
3306 if (bid) {
3307 qapi_free_ChardevBackend(backend);
3308 qapi_free_ChardevReturn(ret);
3309 backend = g_new0(ChardevBackend, 1);
3310 backend->mux = g_new0(ChardevMux, 1);
3311 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3312 backend->mux->chardev = g_strdup(bid);
3313 ret = qmp_chardev_add(id, backend, errp);
3314 if (error_is_set(errp)) {
3315 goto qapi_out;
3316 }
3317 }
3318
2c5f4882
GH		 3319 chr = qemu_chr_find(id);
3320
3321 qapi_out:
3322 qapi_free_ChardevBackend(backend);
3323 qapi_free_ChardevReturn(ret);
3324 return chr;
3325 }
3326
d654f34e 3327 chr = cd->open(opts);
1f51470d 3328 if (!chr) {
312fd5f2 3329 error_setg(errp, "chardev: opening backend \"%s\" failed",
bd2d80b2 3330 qemu_opt_get(opts, "backend"));
2274ae9d 3331 goto err;
191bc01b
GH		 3332 }
3333
3334 if (!chr->filename)
7267c094 3335 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
191bc01b 3336 chr->init = init;
72cf2d4f 3337 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
7591c5c1
GH		 3338
3339 if (qemu_opt_get_bool(opts, "mux", 0)) {
3340 CharDriverState *base = chr;
3341 int len = strlen(qemu_opts_id(opts)) + 6;
7267c094 3342 base->label = g_malloc(len);
7591c5c1
GH		 3343 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3344 chr = qemu_chr_open_mux(base);
3345 chr->filename = base->filename;
d5b27167 3346 chr->avail_connections = MAX_MUX;
72cf2d4f 3347 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
d5b27167
KK		 3348 } else {
3349 chr->avail_connections = 1;
7591c5c1 3350 }
7267c094 3351 chr->label = g_strdup(qemu_opts_id(opts));
2274ae9d 3352 chr->opts = opts;
191bc01b 3353 return chr;
2274ae9d
GH		 3354
3355err:
3356 qemu_opts_del(opts);
3357 return NULL;
191bc01b
GH		 3358}
3359
27143a44 3360CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
6f97dba0
AL		 3361{
3362 const char *p;
3363 CharDriverState *chr;
191bc01b 3364 QemuOpts *opts;
bd2d80b2 3365 Error *err = NULL;
191bc01b 3366
c845f401
GH		 3367 if (strstart(filename, "chardev:", &p)) {
3368 return qemu_chr_find(p);
3369 }
3370
191bc01b 3371 opts = qemu_chr_parse_compat(label, filename);
7e1b35b4
GH		 3372 if (!opts)
3373 return NULL;
6f97dba0 3374
bd2d80b2
GH		 3375 chr = qemu_chr_new_from_opts(opts, init, &err);
3376 if (error_is_set(&err)) {
3377 fprintf(stderr, "%s\n", error_get_pretty(err));
3378 error_free(err);
3379 }
7e1b35b4
GH		 3380 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3381 monitor_init(chr, MONITOR_USE_READLINE);
6f97dba0
AL		 3382 }
3383 return chr;
3384}
3385
15f31519 3386void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
c48855e1
PB		 3387{
3388 if (chr->chr_set_echo) {
3389 chr->chr_set_echo(chr, echo);
3390 }
3391}
3392
c9d830ed 3393void qemu_chr_fe_open(struct CharDriverState *chr)
7c32c4fe
HG		 3394{
3395 if (chr->chr_guest_open) {
3396 chr->chr_guest_open(chr);
3397 }
3398}
3399
2817822d 3400void qemu_chr_fe_close(struct CharDriverState *chr)
7c32c4fe
HG		 3401{
3402 if (chr->chr_guest_close) {
3403 chr->chr_guest_close(chr);
3404 }
3405}
3406
23673ca7
AL		 3407guint qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3408 GIOFunc func, void *user_data)
3409{
3410 GSource *src;
3411 guint tag;
3412
3413 if (s->chr_add_watch == NULL) {
3414 return -ENOSYS;
3415 }
3416
3417 src = s->chr_add_watch(s, cond);
3418 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3419 tag = g_source_attach(src, NULL);
3420 g_source_unref(src);
3421
3422 return tag;
3423}
3424
70f24fb6 3425void qemu_chr_delete(CharDriverState *chr)
6f97dba0 3426{
72cf2d4f 3427 QTAILQ_REMOVE(&chardevs, chr, next);
2274ae9d 3428 if (chr->chr_close) {
6f97dba0 3429 chr->chr_close(chr);
2274ae9d 3430 }
7267c094
AL		 3431 g_free(chr->filename);
3432 g_free(chr->label);
2274ae9d
GH		 3433 if (chr->opts) {
3434 qemu_opts_del(chr->opts);
3435 }
7267c094 3436 g_free(chr);
6f97dba0
AL		 3437}
3438
c5a415a0 3439ChardevInfoList *qmp_query_chardev(Error **errp)
6f97dba0 3440{
c5a415a0 3441 ChardevInfoList *chr_list = NULL;
6f97dba0
AL		 3442 CharDriverState *chr;
3443
72cf2d4f 3444 QTAILQ_FOREACH(chr, &chardevs, next) {
c5a415a0
LC		 3445 ChardevInfoList *info = g_malloc0(sizeof(*info));
3446 info->value = g_malloc0(sizeof(*info->value));
3447 info->value->label = g_strdup(chr->label);
3448 info->value->filename = g_strdup(chr->filename);
3449
3450 info->next = chr_list;
3451 chr_list = info;
6f97dba0 3452 }
588b3832 3453
c5a415a0 3454 return chr_list;
6f97dba0 3455}
c845f401
GH		 3456
3457CharDriverState *qemu_chr_find(const char *name)
3458{
3459 CharDriverState *chr;
3460
72cf2d4f 3461 QTAILQ_FOREACH(chr, &chardevs, next) {
c845f401
GH		 3462 if (strcmp(chr->label, name) != 0)
3463 continue;
3464 return chr;
3465 }
3466 return NULL;
3467}
0beb4942
AL		 3468
3469/* Get a character (serial) device interface. */
3470CharDriverState *qemu_char_get_next_serial(void)
3471{
3472 static int next_serial;
3473
3474 /* FIXME: This function needs to go away: use chardev properties! */
3475 return serial_hds[next_serial++];
3476}
3477
4d454574
PB		 3478QemuOptsList qemu_chardev_opts = {
3479 .name = "chardev",
3480 .implied_opt_name = "backend",
3481 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3482 .desc = {
3483 {
3484 .name = "backend",
3485 .type = QEMU_OPT_STRING,
3486 },{
3487 .name = "path",
3488 .type = QEMU_OPT_STRING,
3489 },{
3490 .name = "host",
3491 .type = QEMU_OPT_STRING,
3492 },{
3493 .name = "port",
3494 .type = QEMU_OPT_STRING,
3495 },{
3496 .name = "localaddr",
3497 .type = QEMU_OPT_STRING,
3498 },{
3499 .name = "localport",
3500 .type = QEMU_OPT_STRING,
3501 },{
3502 .name = "to",
3503 .type = QEMU_OPT_NUMBER,
3504 },{
3505 .name = "ipv4",
3506 .type = QEMU_OPT_BOOL,
3507 },{
3508 .name = "ipv6",
3509 .type = QEMU_OPT_BOOL,
3510 },{
3511 .name = "wait",
3512 .type = QEMU_OPT_BOOL,
3513 },{
3514 .name = "server",
3515 .type = QEMU_OPT_BOOL,
3516 },{
3517 .name = "delay",
3518 .type = QEMU_OPT_BOOL,
3519 },{
3520 .name = "telnet",
3521 .type = QEMU_OPT_BOOL,
3522 },{
3523 .name = "width",
3524 .type = QEMU_OPT_NUMBER,
3525 },{
3526 .name = "height",
3527 .type = QEMU_OPT_NUMBER,
3528 },{
3529 .name = "cols",
3530 .type = QEMU_OPT_NUMBER,
3531 },{
3532 .name = "rows",
3533 .type = QEMU_OPT_NUMBER,
3534 },{
3535 .name = "mux",
3536 .type = QEMU_OPT_BOOL,
3537 },{
3538 .name = "signal",
3539 .type = QEMU_OPT_BOOL,
3540 },{
3541 .name = "name",
3542 .type = QEMU_OPT_STRING,
3543 },{
3544 .name = "debug",
3545 .type = QEMU_OPT_NUMBER,
51767e7c 3546 },{
3949e594 3547 .name = "size",
de1cc36e 3548 .type = QEMU_OPT_SIZE,
4d454574
PB		 3549 },
3550 { /* end of list */ }
3551 },
3552};
f1a1a356 3553
ffbdbe59
GH		 3554#ifdef _WIN32
3555
3556static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3557{
3558 HANDLE out;
3559
3560 if (file->in) {
3561 error_setg(errp, "input file not supported");
3562 return NULL;
3563 }
3564
3565 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3566 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3567 if (out == INVALID_HANDLE_VALUE) {
3568 error_setg(errp, "open %s failed", file->out);
3569 return NULL;
3570 }
3571 return qemu_chr_open_win_file(out);
3572}
3573
d36b2b90
MA		 3574static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3575 Error **errp)
d59044ef 3576{
d36b2b90
MA		 3577 return qemu_chr_open_win_path(serial->device);
3578}
3579
3580static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3581 Error **errp)
3582{
3583 error_setg(errp, "character device backend type 'parallel' not supported");
3584 return NULL;
d59044ef
GH		 3585}
3586
ffbdbe59
GH		 3587#else /* WIN32 */
3588
3589static int qmp_chardev_open_file_source(char *src, int flags,
3590 Error **errp)
3591{
3592 int fd = -1;
3593
3594 TFR(fd = qemu_open(src, flags, 0666));
3595 if (fd == -1) {
3596 error_setg(errp, "open %s: %s", src, strerror(errno));
3597 }
3598 return fd;
3599}
3600
3601static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3602{
3603 int flags, in = -1, out = -1;
3604
3605 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3606 out = qmp_chardev_open_file_source(file->out, flags, errp);
3607 if (error_is_set(errp)) {
3608 return NULL;
3609 }
3610
3611 if (file->in) {
3612 flags = O_RDONLY;
3613 in = qmp_chardev_open_file_source(file->in, flags, errp);
3614 if (error_is_set(errp)) {
3615 qemu_close(out);
3616 return NULL;
3617 }
3618 }
3619
3620 return qemu_chr_open_fd(in, out);
3621}
3622
d36b2b90
MA		 3623static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3624 Error **errp)
d59044ef 3625{
d59044ef 3626#ifdef HAVE_CHARDEV_TTY
d36b2b90
MA		 3627 int fd;
3628
3629 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3630 if (error_is_set(errp)) {
3631 return NULL;
39099991 3632 }
d36b2b90
MA		 3633 socket_set_nonblock(fd);
3634 return qemu_chr_open_tty_fd(fd);
3635#else
3636 error_setg(errp, "character device backend type 'serial' not supported");
3637 return NULL;
88a946d3 3638#endif
d36b2b90
MA		 3639}
3640
3641static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3642 Error **errp)
3643{
88a946d3 3644#ifdef HAVE_CHARDEV_PARPORT
d36b2b90
MA		 3645 int fd;
3646
3647 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3648 if (error_is_set(errp)) {
d59044ef
GH		 3649 return NULL;
3650 }
d36b2b90
MA		 3651 return qemu_chr_open_pp_fd(fd);
3652#else
3653 error_setg(errp, "character device backend type 'parallel' not supported");
3654 return NULL;
3655#endif
d59044ef
GH		 3656}
3657
ffbdbe59
GH		 3658#endif /* WIN32 */
3659
f6bd5d6e
GH		 3660static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3661 Error **errp)
3662{
3663 SocketAddress *addr = sock->addr;
3664 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3665 bool is_listen = sock->has_server ? sock->server : true;
3666 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3667 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3668 int fd;
3669
3670 if (is_listen) {
3671 fd = socket_listen(addr, errp);
3672 } else {
3673 fd = socket_connect(addr, errp, NULL, NULL);
3674 }
3675 if (error_is_set(errp)) {
3676 return NULL;
3677 }
3678 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3679 is_telnet, is_waitconnect, errp);
3680}
3681
f1a1a356
GH		 3682ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3683 Error **errp)
3684{
3685 ChardevReturn *ret = g_new0(ChardevReturn, 1);
edb2fb3c 3686 CharDriverState *base, *chr = NULL;
f1a1a356
GH		 3687
3688 chr = qemu_chr_find(id);
3689 if (chr) {
3690 error_setg(errp, "Chardev '%s' already exists", id);
3691 g_free(ret);
3692 return NULL;
3693 }
3694
3695 switch (backend->kind) {
ffbdbe59
GH		 3696 case CHARDEV_BACKEND_KIND_FILE:
3697 chr = qmp_chardev_open_file(backend->file, errp);
3698 break;
d36b2b90
MA		 3699 case CHARDEV_BACKEND_KIND_SERIAL:
3700 chr = qmp_chardev_open_serial(backend->serial, errp);
3701 break;
3702 case CHARDEV_BACKEND_KIND_PARALLEL:
3703 chr = qmp_chardev_open_parallel(backend->parallel, errp);
d59044ef 3704 break;
548cbb36
GH		 3705 case CHARDEV_BACKEND_KIND_PIPE:
3706 chr = qemu_chr_open_pipe(backend->pipe);
3707 break;
f6bd5d6e
GH		 3708 case CHARDEV_BACKEND_KIND_SOCKET:
3709 chr = qmp_chardev_open_socket(backend->socket, errp);
3710 break;
0a1a7fab
GH		 3711#ifdef HAVE_CHARDEV_TTY
3712 case CHARDEV_BACKEND_KIND_PTY:
e68c5958 3713 chr = qemu_chr_open_pty(id, ret);
0a1a7fab 3714 break;
0a1a7fab 3715#endif
f1a1a356 3716 case CHARDEV_BACKEND_KIND_NULL:
80dca9e6 3717 chr = qemu_chr_open_null();
f1a1a356 3718 break;
edb2fb3c
GH		 3719 case CHARDEV_BACKEND_KIND_MUX:
3720 base = qemu_chr_find(backend->mux->chardev);
3721 if (base == NULL) {
3722 error_setg(errp, "mux: base chardev %s not found",
3723 backend->mux->chardev);
3724 break;
3725 }
3726 chr = qemu_chr_open_mux(base);
3727 break;
f5a51cab
GH		 3728 case CHARDEV_BACKEND_KIND_MSMOUSE:
3729 chr = qemu_chr_open_msmouse();
3730 break;
2d57286d
GH		 3731#ifdef CONFIG_BRLAPI
3732 case CHARDEV_BACKEND_KIND_BRAILLE:
3733 chr = chr_baum_init();
3734 break;
3735#endif
7c358031
GH		 3736 case CHARDEV_BACKEND_KIND_STDIO:
3737 chr = qemu_chr_open_stdio(backend->stdio);
3738 break;
d9ac374f
GH		 3739#ifdef _WIN32
3740 case CHARDEV_BACKEND_KIND_CONSOLE:
3741 chr = qemu_chr_open_win_con();
3742 break;
cd153e2a
GH		 3743#endif
3744#ifdef CONFIG_SPICE
3745 case CHARDEV_BACKEND_KIND_SPICEVMC:
3746 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3747 break;
3748 case CHARDEV_BACKEND_KIND_SPICEPORT:
3749 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3750 break;
d9ac374f 3751#endif
702ec69c
GH		 3752 case CHARDEV_BACKEND_KIND_VC:
3753 chr = vc_init(backend->vc);
3754 break;
1da48c65
GH		 3755 case CHARDEV_BACKEND_KIND_MEMORY:
3756 chr = qemu_chr_open_ringbuf(backend->memory, errp);
3757 break;
f1a1a356
GH		 3758 default:
3759 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3760 break;
3761 }
3762
3763 if (chr == NULL && !error_is_set(errp)) {
3764 error_setg(errp, "Failed to create chardev");
3765 }
3766 if (chr) {
3767 chr->label = g_strdup(id);
edb2fb3c
GH		 3768 chr->avail_connections =
3769 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
f1a1a356
GH		 3770 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3771 return ret;
3772 } else {
3773 g_free(ret);
3774 return NULL;
3775 }
3776}
3777
3778void qmp_chardev_remove(const char *id, Error **errp)
3779{
3780 CharDriverState *chr;
3781
3782 chr = qemu_chr_find(id);
3783 if (NULL == chr) {
3784 error_setg(errp, "Chardev '%s' not found", id);
3785 return;
3786 }
3787 if (chr->chr_can_read || chr->chr_read ||
3788 chr->chr_event || chr->handler_opaque) {
3789 error_setg(errp, "Chardev '%s' is busy", id);
3790 return;
3791 }
3792 qemu_chr_delete(chr);
3793}
d654f34e
AL		 3794
3795static void register_types(void)
3796{
80dca9e6 3797 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
d654f34e
AL		 3798 register_char_driver("socket", qemu_chr_open_socket);
3799 register_char_driver("udp", qemu_chr_open_udp);
1da48c65
GH		 3800 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3801 qemu_chr_parse_ringbuf);
846e2e49
GH		 3802 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3803 qemu_chr_parse_file_out);
7c358031
GH		 3804 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3805 qemu_chr_parse_stdio);
0f1cb51d
GH		 3806 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3807 qemu_chr_parse_serial);
3808 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3809 qemu_chr_parse_serial);
dc375097
GH		 3810 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3811 qemu_chr_parse_parallel);
3812 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3813 qemu_chr_parse_parallel);
e68c5958 3814 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
d9ac374f 3815 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
548cbb36
GH		 3816 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3817 qemu_chr_parse_pipe);
d654f34e
AL		 3818}
3819
3820type_init(register_types);
Qemu copy for testing