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hw/block/pflash_cfi01: Report correct size info for parallel configs
[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"
dccfcd0e 29#include "sysemu/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>
3294ce18
MT		 56#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
57#include <dev/ppbus/ppi.h>
58#include <dev/ppbus/ppbconf.h>
c5e97233 59#elif defined(__DragonFly__)
c5e97233
BS		 60#include <dev/misc/ppi/ppi.h>
61#include <bus/ppbus/ppbconf.h>
6f97dba0 62#endif
bbe813a2 63#else
6f97dba0 64#ifdef __linux__
6f97dba0
AL		 65#include <linux/ppdev.h>
66#include <linux/parport.h>
67#endif
68#ifdef __sun__
69#include <sys/stat.h>
70#include <sys/ethernet.h>
71#include <sys/sockio.h>
72#include <netinet/arp.h>
73#include <netinet/in.h>
74#include <netinet/in_systm.h>
75#include <netinet/ip.h>
76#include <netinet/ip_icmp.h> // must come after ip.h
77#include <netinet/udp.h>
78#include <netinet/tcp.h>
6f97dba0
AL		 79#endif
80#endif
81#endif
82
1de7afc9 83#include "qemu/sockets.h"
cbcc6336 84#include "ui/qemu-spice.h"
6f97dba0 85
9bd7854e
AS		 86#define READ_BUF_LEN 4096
87
6f97dba0
AL		 88/***********************************************************/
89/* character device */
90
72cf2d4f
BS		 91static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
92 QTAILQ_HEAD_INITIALIZER(chardevs);
2970a6c9 93
a425d23f 94void qemu_chr_be_event(CharDriverState *s, int event)
6f97dba0 95{
73cdf3f2
AG		 96 /* Keep track if the char device is open */
97 switch (event) {
98 case CHR_EVENT_OPENED:
16665b94 99 s->be_open = 1;
73cdf3f2
AG		 100 break;
101 case CHR_EVENT_CLOSED:
16665b94 102 s->be_open = 0;
73cdf3f2
AG		 103 break;
104 }
105
6f97dba0
AL		 106 if (!s->chr_event)
107 return;
108 s->chr_event(s->handler_opaque, event);
109}
110
fee204fd 111void qemu_chr_be_generic_open(CharDriverState *s)
6f97dba0 112{
bd5c51ee 113 qemu_chr_be_event(s, CHR_EVENT_OPENED);
6f97dba0
AL		 114}
115
2cc6e0a1 116int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
6f97dba0
AL		 117{
118 return s->chr_write(s, buf, len);
119}
120
cd18720a
AL		 121int qemu_chr_fe_write_all(CharDriverState *s, const uint8_t *buf, int len)
122{
123 int offset = 0;
124 int res;
125
126 while (offset < len) {
127 do {
128 res = s->chr_write(s, buf + offset, len - offset);
129 if (res == -1 && errno == EAGAIN) {
130 g_usleep(100);
131 }
132 } while (res == -1 && errno == EAGAIN);
133
134 if (res == 0) {
135 break;
136 }
137
138 if (res < 0) {
139 return res;
140 }
141
142 offset += res;
143 }
144
145 return offset;
146}
147
41084f1b 148int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
6f97dba0
AL		 149{
150 if (!s->chr_ioctl)
151 return -ENOTSUP;
152 return s->chr_ioctl(s, cmd, arg);
153}
154
909cda12 155int qemu_chr_be_can_write(CharDriverState *s)
6f97dba0
AL		 156{
157 if (!s->chr_can_read)
158 return 0;
159 return s->chr_can_read(s->handler_opaque);
160}
161
fa5efccb 162void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
6f97dba0 163{
ac310734
SW		 164 if (s->chr_read) {
165 s->chr_read(s->handler_opaque, buf, len);
166 }
6f97dba0
AL		 167}
168
74c0d6f0 169int qemu_chr_fe_get_msgfd(CharDriverState *s)
7d174059
MM		 170{
171 return s->get_msgfd ? s->get_msgfd(s) : -1;
172}
173
13661089
DB		 174int qemu_chr_add_client(CharDriverState *s, int fd)
175{
176 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
177}
178
6f97dba0
AL		 179void qemu_chr_accept_input(CharDriverState *s)
180{
181 if (s->chr_accept_input)
182 s->chr_accept_input(s);
98c8ee1d 183 qemu_notify_event();
6f97dba0
AL		 184}
185
e7e71b0e 186void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
6f97dba0 187{
9bd7854e 188 char buf[READ_BUF_LEN];
6f97dba0
AL		 189 va_list ap;
190 va_start(ap, fmt);
191 vsnprintf(buf, sizeof(buf), fmt, ap);
2cc6e0a1 192 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
6f97dba0
AL		 193 va_end(ap);
194}
195
386a5a1e
AS		 196static void remove_fd_in_watch(CharDriverState *chr);
197
6f97dba0 198void qemu_chr_add_handlers(CharDriverState *s,
7b27a769 199 IOCanReadHandler *fd_can_read,
6f97dba0
AL		 200 IOReadHandler *fd_read,
201 IOEventHandler *fd_event,
202 void *opaque)
203{
19083228
HG		 204 int fe_open;
205
da7d998b 206 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
19083228 207 fe_open = 0;
386a5a1e 208 remove_fd_in_watch(s);
19083228
HG		 209 } else {
210 fe_open = 1;
2d6c1ef4 211 }
6f97dba0
AL		 212 s->chr_can_read = fd_can_read;
213 s->chr_read = fd_read;
214 s->chr_event = fd_event;
215 s->handler_opaque = opaque;
ac1b84dd 216 if (fe_open && s->chr_update_read_handler)
6f97dba0 217 s->chr_update_read_handler(s);
73cdf3f2 218
19083228 219 if (!s->explicit_fe_open) {
8e25daa8 220 qemu_chr_fe_set_open(s, fe_open);
19083228
HG		 221 }
222
73cdf3f2
AG		 223 /* We're connecting to an already opened device, so let's make sure we
224 also get the open event */
a59bcd31 225 if (fe_open && s->be_open) {
fee204fd 226 qemu_chr_be_generic_open(s);
73cdf3f2 227 }
6f97dba0
AL		 228}
229
230static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
231{
232 return len;
233}
234
80dca9e6 235static CharDriverState *qemu_chr_open_null(void)
6f97dba0
AL		 236{
237 CharDriverState *chr;
238
7267c094 239 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0 240 chr->chr_write = null_chr_write;
bd5c51ee 241 chr->explicit_be_open = true;
1f51470d 242 return chr;
6f97dba0
AL		 243}
244
245/* MUX driver for serial I/O splitting */
6f97dba0
AL		 246#define MAX_MUX 4
247#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
248#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
249typedef struct {
7b27a769 250 IOCanReadHandler *chr_can_read[MAX_MUX];
6f97dba0
AL		 251 IOReadHandler *chr_read[MAX_MUX];
252 IOEventHandler *chr_event[MAX_MUX];
253 void *ext_opaque[MAX_MUX];
254 CharDriverState *drv;
799f1f23 255 int focus;
6f97dba0
AL		 256 int mux_cnt;
257 int term_got_escape;
258 int max_size;
a80bf99f
AL		 259 /* Intermediate input buffer allows to catch escape sequences even if the
260 currently active device is not accepting any input - but only until it
261 is full as well. */
262 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
263 int prod[MAX_MUX];
264 int cons[MAX_MUX];
2d22959d 265 int timestamps;
4ab312f7 266 int linestart;
2d22959d 267 int64_t timestamps_start;
6f97dba0
AL		 268} MuxDriver;
269
270
271static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
272{
273 MuxDriver *d = chr->opaque;
274 int ret;
2d22959d 275 if (!d->timestamps) {
6f97dba0
AL		 276 ret = d->drv->chr_write(d->drv, buf, len);
277 } else {
278 int i;
279
280 ret = 0;
4ab312f7
JK		 281 for (i = 0; i < len; i++) {
282 if (d->linestart) {
6f97dba0
AL		 283 char buf1[64];
284 int64_t ti;
285 int secs;
286
bc72ad67 287 ti = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
2d22959d
JK		 288 if (d->timestamps_start == -1)
289 d->timestamps_start = ti;
290 ti -= d->timestamps_start;
a4bb1db8 291 secs = ti / 1000;
6f97dba0
AL		 292 snprintf(buf1, sizeof(buf1),
293 "[%02d:%02d:%02d.%03d] ",
294 secs / 3600,
295 (secs / 60) % 60,
296 secs % 60,
a4bb1db8 297 (int)(ti % 1000));
6f97dba0 298 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
4ab312f7
JK		 299 d->linestart = 0;
300 }
301 ret += d->drv->chr_write(d->drv, buf+i, 1);
302 if (buf[i] == '\n') {
303 d->linestart = 1;
6f97dba0
AL		 304 }
305 }
306 }
307 return ret;
308}
309
310static const char * const mux_help[] = {
311 "% h print this help\n\r",
312 "% x exit emulator\n\r",
313 "% s save disk data back to file (if -snapshot)\n\r",
314 "% t toggle console timestamps\n\r"
315 "% b send break (magic sysrq)\n\r",
316 "% c switch between console and monitor\n\r",
317 "% % sends %\n\r",
318 NULL
319};
320
321int term_escape_char = 0x01; /* ctrl-a is used for escape */
322static void mux_print_help(CharDriverState *chr)
323{
324 int i, j;
325 char ebuf[15] = "Escape-Char";
326 char cbuf[50] = "\n\r";
327
328 if (term_escape_char > 0 && term_escape_char < 26) {
329 snprintf(cbuf, sizeof(cbuf), "\n\r");
330 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
331 } else {
332 snprintf(cbuf, sizeof(cbuf),
333 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
334 term_escape_char);
335 }
336 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
337 for (i = 0; mux_help[i] != NULL; i++) {
338 for (j=0; mux_help[i][j] != '\0'; j++) {
339 if (mux_help[i][j] == '%')
340 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
341 else
342 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
343 }
344 }
345}
346
2724b180
AL		 347static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
348{
349 if (d->chr_event[mux_nr])
350 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
351}
352
6f97dba0
AL		 353static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
354{
355 if (d->term_got_escape) {
356 d->term_got_escape = 0;
357 if (ch == term_escape_char)
358 goto send_char;
359 switch(ch) {
360 case '?':
361 case 'h':
362 mux_print_help(chr);
363 break;
364 case 'x':
365 {
366 const char *term = "QEMU: Terminated\n\r";
367 chr->chr_write(chr,(uint8_t *)term,strlen(term));
368 exit(0);
369 break;
370 }
371 case 's':
6ab4b5ab 372 bdrv_commit_all();
6f97dba0
AL		 373 break;
374 case 'b':
a425d23f 375 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 376 break;
377 case 'c':
378 /* Switch to the next registered device */
799f1f23
GH		 379 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
380 d->focus++;
381 if (d->focus >= d->mux_cnt)
382 d->focus = 0;
383 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
6f97dba0 384 break;
2d22959d
JK		 385 case 't':
386 d->timestamps = !d->timestamps;
387 d->timestamps_start = -1;
4ab312f7 388 d->linestart = 0;
2d22959d 389 break;
6f97dba0
AL		 390 }
391 } else if (ch == term_escape_char) {
392 d->term_got_escape = 1;
393 } else {
394 send_char:
395 return 1;
396 }
397 return 0;
398}
399
400static void mux_chr_accept_input(CharDriverState *chr)
401{
6f97dba0 402 MuxDriver *d = chr->opaque;
799f1f23 403 int m = d->focus;
6f97dba0 404
a80bf99f 405 while (d->prod[m] != d->cons[m] &&
6f97dba0
AL		 406 d->chr_can_read[m] &&
407 d->chr_can_read[m](d->ext_opaque[m])) {
408 d->chr_read[m](d->ext_opaque[m],
a80bf99f 409 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
6f97dba0
AL		 410 }
411}
412
413static int mux_chr_can_read(void *opaque)
414{
415 CharDriverState *chr = opaque;
416 MuxDriver *d = chr->opaque;
799f1f23 417 int m = d->focus;
6f97dba0 418
a80bf99f 419 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
6f97dba0 420 return 1;
a80bf99f
AL		 421 if (d->chr_can_read[m])
422 return d->chr_can_read[m](d->ext_opaque[m]);
6f97dba0
AL		 423 return 0;
424}
425
426static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
427{
428 CharDriverState *chr = opaque;
429 MuxDriver *d = chr->opaque;
799f1f23 430 int m = d->focus;
6f97dba0
AL		 431 int i;
432
433 mux_chr_accept_input (opaque);
434
435 for(i = 0; i < size; i++)
436 if (mux_proc_byte(chr, d, buf[i])) {
a80bf99f 437 if (d->prod[m] == d->cons[m] &&
6f97dba0
AL		 438 d->chr_can_read[m] &&
439 d->chr_can_read[m](d->ext_opaque[m]))
440 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
441 else
a80bf99f 442 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
6f97dba0
AL		 443 }
444}
445
446static void mux_chr_event(void *opaque, int event)
447{
448 CharDriverState *chr = opaque;
449 MuxDriver *d = chr->opaque;
450 int i;
451
452 /* Send the event to all registered listeners */
453 for (i = 0; i < d->mux_cnt; i++)
2724b180 454 mux_chr_send_event(d, i, event);
6f97dba0
AL		 455}
456
457static void mux_chr_update_read_handler(CharDriverState *chr)
458{
459 MuxDriver *d = chr->opaque;
460
461 if (d->mux_cnt >= MAX_MUX) {
462 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
463 return;
464 }
465 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
466 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
467 d->chr_read[d->mux_cnt] = chr->chr_read;
468 d->chr_event[d->mux_cnt] = chr->chr_event;
469 /* Fix up the real driver with mux routines */
470 if (d->mux_cnt == 0) {
471 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
472 mux_chr_event, chr);
473 }
799f1f23
GH		 474 if (d->focus != -1) {
475 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
a7aec5da 476 }
799f1f23 477 d->focus = d->mux_cnt;
6f97dba0 478 d->mux_cnt++;
799f1f23 479 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
6f97dba0
AL		 480}
481
7b7ab18d
MR		 482static bool muxes_realized;
483
484/**
485 * Called after processing of default and command-line-specified
486 * chardevs to deliver CHR_EVENT_OPENED events to any FEs attached
487 * to a mux chardev. This is done here to ensure that
488 * output/prompts/banners are only displayed for the FE that has
489 * focus when initial command-line processing/machine init is
490 * completed.
491 *
492 * After this point, any new FE attached to any new or existing
493 * mux will receive CHR_EVENT_OPENED notifications for the BE
494 * immediately.
495 */
496static void muxes_realize_done(Notifier *notifier, void *unused)
497{
498 CharDriverState *chr;
499
500 QTAILQ_FOREACH(chr, &chardevs, next) {
501 if (chr->is_mux) {
502 MuxDriver *d = chr->opaque;
503 int i;
504
505 /* send OPENED to all already-attached FEs */
506 for (i = 0; i < d->mux_cnt; i++) {
507 mux_chr_send_event(d, i, CHR_EVENT_OPENED);
508 }
509 /* mark mux as OPENED so any new FEs will immediately receive
510 * OPENED event
511 */
512 qemu_chr_be_generic_open(chr);
513 }
514 }
515 muxes_realized = true;
516}
517
518static Notifier muxes_realize_notify = {
519 .notify = muxes_realize_done,
520};
521
6f97dba0
AL		 522static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
523{
524 CharDriverState *chr;
525 MuxDriver *d;
526
7267c094
AL		 527 chr = g_malloc0(sizeof(CharDriverState));
528 d = g_malloc0(sizeof(MuxDriver));
6f97dba0
AL		 529
530 chr->opaque = d;
531 d->drv = drv;
799f1f23 532 d->focus = -1;
6f97dba0
AL		 533 chr->chr_write = mux_chr_write;
534 chr->chr_update_read_handler = mux_chr_update_read_handler;
535 chr->chr_accept_input = mux_chr_accept_input;
7c32c4fe 536 /* Frontend guest-open / -close notification is not support with muxes */
574b711a 537 chr->chr_set_fe_open = NULL;
7b7ab18d
MR		 538 /* only default to opened state if we've realized the initial
539 * set of muxes
540 */
541 chr->explicit_be_open = muxes_realized ? 0 : 1;
542 chr->is_mux = 1;
73cdf3f2 543
6f97dba0
AL		 544 return chr;
545}
546
547
548#ifdef _WIN32
d247d25f 549int send_all(int fd, const void *buf, int len1)
6f97dba0
AL		 550{
551 int ret, len;
552
553 len = len1;
554 while (len > 0) {
555 ret = send(fd, buf, len, 0);
556 if (ret < 0) {
6f97dba0
AL		 557 errno = WSAGetLastError();
558 if (errno != WSAEWOULDBLOCK) {
559 return -1;
560 }
561 } else if (ret == 0) {
562 break;
563 } else {
564 buf += ret;
565 len -= ret;
566 }
567 }
568 return len1 - len;
569}
570
571#else
572
5fc9cfed 573int send_all(int fd, const void *_buf, int len1)
6f97dba0
AL		 574{
575 int ret, len;
5fc9cfed 576 const uint8_t *buf = _buf;
6f97dba0
AL		 577
578 len = len1;
579 while (len > 0) {
580 ret = write(fd, buf, len);
581 if (ret < 0) {
582 if (errno != EINTR && errno != EAGAIN)
583 return -1;
584 } else if (ret == 0) {
585 break;
586 } else {
587 buf += ret;
588 len -= ret;
589 }
590 }
591 return len1 - len;
592}
4549a8b7
SB		 593
594int recv_all(int fd, void *_buf, int len1, bool single_read)
595{
596 int ret, len;
597 uint8_t *buf = _buf;
598
599 len = len1;
600 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
601 if (ret < 0) {
602 if (errno != EINTR && errno != EAGAIN) {
603 return -1;
604 }
605 continue;
606 } else {
607 if (single_read) {
608 return ret;
609 }
610 buf += ret;
611 len -= ret;
612 }
613 }
614 return len1 - len;
615}
616
6f97dba0
AL		 617#endif /* !_WIN32 */
618
96c63847
AL		 619typedef struct IOWatchPoll
620{
d185c094
PB		 621 GSource parent;
622
1e885b25 623 GIOChannel *channel;
96c63847 624 GSource *src;
96c63847
AL		 625
626 IOCanReadHandler *fd_can_read;
1e885b25 627 GSourceFunc fd_read;
96c63847 628 void *opaque;
96c63847
AL		 629} IOWatchPoll;
630
96c63847
AL		 631static IOWatchPoll *io_watch_poll_from_source(GSource *source)
632{
d185c094 633 return container_of(source, IOWatchPoll, parent);
96c63847
AL		 634}
635
636static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
637{
638 IOWatchPoll *iwp = io_watch_poll_from_source(source);
d185c094 639 bool now_active = iwp->fd_can_read(iwp->opaque) > 0;
1e885b25 640 bool was_active = iwp->src != NULL;
d185c094 641 if (was_active == now_active) {
96c63847
AL		 642 return FALSE;
643 }
644
d185c094 645 if (now_active) {
1e885b25
PB		 646 iwp->src = g_io_create_watch(iwp->channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
647 g_source_set_callback(iwp->src, iwp->fd_read, iwp->opaque, NULL);
d185c094
PB		 648 g_source_attach(iwp->src, NULL);
649 } else {
1e885b25
PB		 650 g_source_destroy(iwp->src);
651 g_source_unref(iwp->src);
652 iwp->src = NULL;
d185c094
PB		 653 }
654 return FALSE;
96c63847
AL		 655}
656
657static gboolean io_watch_poll_check(GSource *source)
658{
d185c094 659 return FALSE;
96c63847
AL		 660}
661
662static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
663 gpointer user_data)
664{
d185c094 665 abort();
96c63847
AL		 666}
667
668static void io_watch_poll_finalize(GSource *source)
669{
2b316774
PB		 670 /* Due to a glib bug, removing the last reference to a source
671 * inside a finalize callback causes recursive locking (and a
672 * deadlock). This is not a problem inside other callbacks,
673 * including dispatch callbacks, so we call io_remove_watch_poll
674 * to remove this source. At this point, iwp->src must
675 * be NULL, or we would leak it.
676 *
677 * This would be solved much more elegantly by child sources,
678 * but we support older glib versions that do not have them.
679 */
96c63847 680 IOWatchPoll *iwp = io_watch_poll_from_source(source);
2b316774 681 assert(iwp->src == NULL);
96c63847
AL		 682}
683
684static GSourceFuncs io_watch_poll_funcs = {
685 .prepare = io_watch_poll_prepare,
686 .check = io_watch_poll_check,
687 .dispatch = io_watch_poll_dispatch,
688 .finalize = io_watch_poll_finalize,
689};
690
691/* Can only be used for read */
692static guint io_add_watch_poll(GIOChannel *channel,
693 IOCanReadHandler *fd_can_read,
694 GIOFunc fd_read,
695 gpointer user_data)
696{
697 IOWatchPoll *iwp;
0ca5aa4f 698 int tag;
96c63847 699
d185c094 700 iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs, sizeof(IOWatchPoll));
96c63847
AL		 701 iwp->fd_can_read = fd_can_read;
702 iwp->opaque = user_data;
1e885b25
PB		 703 iwp->channel = channel;
704 iwp->fd_read = (GSourceFunc) fd_read;
705 iwp->src = NULL;
96c63847 706
0ca5aa4f
PB		 707 tag = g_source_attach(&iwp->parent, NULL);
708 g_source_unref(&iwp->parent);
709 return tag;
96c63847
AL		 710}
711
2b316774
PB		 712static void io_remove_watch_poll(guint tag)
713{
714 GSource *source;
715 IOWatchPoll *iwp;
716
717 g_return_if_fail (tag > 0);
718
719 source = g_main_context_find_source_by_id(NULL, tag);
720 g_return_if_fail (source != NULL);
721
722 iwp = io_watch_poll_from_source(source);
723 if (iwp->src) {
724 g_source_destroy(iwp->src);
725 g_source_unref(iwp->src);
726 iwp->src = NULL;
727 }
728 g_source_destroy(&iwp->parent);
729}
730
26da70c7
AS		 731static void remove_fd_in_watch(CharDriverState *chr)
732{
733 if (chr->fd_in_tag) {
734 io_remove_watch_poll(chr->fd_in_tag);
735 chr->fd_in_tag = 0;
736 }
737}
738
44ab9ed4 739#ifndef _WIN32
96c63847
AL		 740static GIOChannel *io_channel_from_fd(int fd)
741{
742 GIOChannel *chan;
743
744 if (fd == -1) {
745 return NULL;
746 }
747
748 chan = g_io_channel_unix_new(fd);
749
750 g_io_channel_set_encoding(chan, NULL, NULL);
751 g_io_channel_set_buffered(chan, FALSE);
752
753 return chan;
754}
44ab9ed4 755#endif
96c63847 756
76a9644b
AL		 757static GIOChannel *io_channel_from_socket(int fd)
758{
759 GIOChannel *chan;
760
761 if (fd == -1) {
762 return NULL;
763 }
764
765#ifdef _WIN32
766 chan = g_io_channel_win32_new_socket(fd);
767#else
768 chan = g_io_channel_unix_new(fd);
769#endif
770
771 g_io_channel_set_encoding(chan, NULL, NULL);
772 g_io_channel_set_buffered(chan, FALSE);
773
774 return chan;
775}
776
684a096e 777static int io_channel_send(GIOChannel *fd, const void *buf, size_t len)
96c63847 778{
ac8c26f6
LE		 779 size_t offset = 0;
780 GIOStatus status = G_IO_STATUS_NORMAL;
96c63847 781
ac8c26f6
LE		 782 while (offset < len && status == G_IO_STATUS_NORMAL) {
783 gsize bytes_written = 0;
684a096e
AL		 784
785 status = g_io_channel_write_chars(fd, buf + offset, len - offset,
96c63847 786 &bytes_written, NULL);
684a096e 787 offset += bytes_written;
96c63847 788 }
684a096e 789
ac8c26f6
LE		 790 if (offset > 0) {
791 return offset;
792 }
793 switch (status) {
794 case G_IO_STATUS_NORMAL:
795 g_assert(len == 0);
796 return 0;
797 case G_IO_STATUS_AGAIN:
798 errno = EAGAIN;
799 return -1;
800 default:
801 break;
802 }
803 errno = EINVAL;
804 return -1;
96c63847 805}
96c63847 806
44ab9ed4
BS		 807#ifndef _WIN32
808
a29753f8
AL		 809typedef struct FDCharDriver {
810 CharDriverState *chr;
811 GIOChannel *fd_in, *fd_out;
6f97dba0 812 int max_size;
a29753f8 813 QTAILQ_ENTRY(FDCharDriver) node;
6f97dba0
AL		 814} FDCharDriver;
815
6f97dba0
AL		 816static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
817{
818 FDCharDriver *s = chr->opaque;
a29753f8 819
684a096e 820 return io_channel_send(s->fd_out, buf, len);
6f97dba0
AL		 821}
822
a29753f8 823static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 824{
825 CharDriverState *chr = opaque;
826 FDCharDriver *s = chr->opaque;
a29753f8 827 int len;
9bd7854e 828 uint8_t buf[READ_BUF_LEN];
a29753f8
AL		 829 GIOStatus status;
830 gsize bytes_read;
6f97dba0
AL		 831
832 len = sizeof(buf);
a29753f8 833 if (len > s->max_size) {
6f97dba0 834 len = s->max_size;
a29753f8
AL		 835 }
836 if (len == 0) {
cdbf6e16 837 return TRUE;
a29753f8
AL		 838 }
839
840 status = g_io_channel_read_chars(chan, (gchar *)buf,
841 len, &bytes_read, NULL);
842 if (status == G_IO_STATUS_EOF) {
26da70c7 843 remove_fd_in_watch(chr);
a425d23f 844 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
a29753f8 845 return FALSE;
6f97dba0 846 }
a29753f8
AL		 847 if (status == G_IO_STATUS_NORMAL) {
848 qemu_chr_be_write(chr, buf, bytes_read);
6f97dba0 849 }
a29753f8
AL		 850
851 return TRUE;
852}
853
854static int fd_chr_read_poll(void *opaque)
855{
856 CharDriverState *chr = opaque;
857 FDCharDriver *s = chr->opaque;
858
859 s->max_size = qemu_chr_be_can_write(chr);
860 return s->max_size;
6f97dba0
AL		 861}
862
23673ca7
AL		 863static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
864{
865 FDCharDriver *s = chr->opaque;
866 return g_io_create_watch(s->fd_out, cond);
867}
868
6f97dba0
AL		 869static void fd_chr_update_read_handler(CharDriverState *chr)
870{
871 FDCharDriver *s = chr->opaque;
872
26da70c7 873 remove_fd_in_watch(chr);
a29753f8 874 if (s->fd_in) {
7ba9addc
AS		 875 chr->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll,
876 fd_chr_read, chr);
6f97dba0
AL		 877 }
878}
879
880static void fd_chr_close(struct CharDriverState *chr)
881{
882 FDCharDriver *s = chr->opaque;
883
26da70c7 884 remove_fd_in_watch(chr);
a29753f8
AL		 885 if (s->fd_in) {
886 g_io_channel_unref(s->fd_in);
887 }
888 if (s->fd_out) {
889 g_io_channel_unref(s->fd_out);
6f97dba0
AL		 890 }
891
7267c094 892 g_free(s);
a425d23f 893 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 894}
895
896/* open a character device to a unix fd */
897static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
898{
899 CharDriverState *chr;
900 FDCharDriver *s;
901
7267c094
AL		 902 chr = g_malloc0(sizeof(CharDriverState));
903 s = g_malloc0(sizeof(FDCharDriver));
a29753f8
AL		 904 s->fd_in = io_channel_from_fd(fd_in);
905 s->fd_out = io_channel_from_fd(fd_out);
23673ca7 906 fcntl(fd_out, F_SETFL, O_NONBLOCK);
a29753f8 907 s->chr = chr;
6f97dba0 908 chr->opaque = s;
23673ca7 909 chr->chr_add_watch = fd_chr_add_watch;
6f97dba0
AL		 910 chr->chr_write = fd_chr_write;
911 chr->chr_update_read_handler = fd_chr_update_read_handler;
912 chr->chr_close = fd_chr_close;
913
6f97dba0
AL		 914 return chr;
915}
916
548cbb36 917static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
6f97dba0
AL		 918{
919 int fd_in, fd_out;
920 char filename_in[256], filename_out[256];
548cbb36 921 const char *filename = opts->device;
7d31544f
GH		 922
923 if (filename == NULL) {
924 fprintf(stderr, "chardev: pipe: no filename given\n");
1f51470d 925 return NULL;
7d31544f 926 }
6f97dba0
AL		 927
928 snprintf(filename_in, 256, "%s.in", filename);
929 snprintf(filename_out, 256, "%s.out", filename);
40ff6d7e
KW		 930 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
931 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
6f97dba0
AL		 932 if (fd_in < 0 || fd_out < 0) {
933 if (fd_in >= 0)
934 close(fd_in);
935 if (fd_out >= 0)
936 close(fd_out);
b181e047 937 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
a89dd6c3 938 if (fd_in < 0) {
1f51470d 939 return NULL;
a89dd6c3 940 }
6f97dba0 941 }
1f51470d 942 return qemu_chr_open_fd(fd_in, fd_out);
6f97dba0
AL		 943}
944
6f97dba0
AL		 945/* init terminal so that we can grab keys */
946static struct termios oldtty;
947static int old_fd0_flags;
bb002513 948static bool stdio_allow_signal;
6f97dba0
AL		 949
950static void term_exit(void)
951{
952 tcsetattr (0, TCSANOW, &oldtty);
953 fcntl(0, F_SETFL, old_fd0_flags);
954}
955
bb002513 956static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
6f97dba0
AL		 957{
958 struct termios tty;
959
0369364b 960 tty = oldtty;
bb002513
PB		 961 if (!echo) {
962 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
6f97dba0 963 |INLCR|IGNCR|ICRNL|IXON);
bb002513
PB		 964 tty.c_oflag |= OPOST;
965 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
966 tty.c_cflag &= ~(CSIZE|PARENB);
967 tty.c_cflag |= CS8;
968 tty.c_cc[VMIN] = 1;
969 tty.c_cc[VTIME] = 0;
970 }
bb002513 971 if (!stdio_allow_signal)
6f97dba0 972 tty.c_lflag &= ~ISIG;
6f97dba0
AL		 973
974 tcsetattr (0, TCSANOW, &tty);
6f97dba0
AL		 975}
976
977static void qemu_chr_close_stdio(struct CharDriverState *chr)
978{
979 term_exit();
6f97dba0
AL		 980 fd_chr_close(chr);
981}
982
7c358031 983static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
6f97dba0
AL		 984{
985 CharDriverState *chr;
986
ab51b1d5
MT		 987 if (is_daemonized()) {
988 error_report("cannot use stdio with -daemonize");
989 return NULL;
990 }
ed7a1540
AL		 991 old_fd0_flags = fcntl(0, F_GETFL);
992 tcgetattr (0, &oldtty);
993 fcntl(0, F_SETFL, O_NONBLOCK);
994 atexit(term_exit);
0369364b 995
6f97dba0
AL		 996 chr = qemu_chr_open_fd(0, 1);
997 chr->chr_close = qemu_chr_close_stdio;
bb002513 998 chr->chr_set_echo = qemu_chr_set_echo_stdio;
7c358031
GH		 999 if (opts->has_signal) {
1000 stdio_allow_signal = opts->signal;
1001 }
15f31519 1002 qemu_chr_fe_set_echo(chr, false);
6f97dba0 1003
1f51470d 1004 return chr;
6f97dba0
AL		 1005}
1006
6f97dba0 1007#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
a167ba50
AJ		 1008 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1009 || defined(__GLIBC__)
6f97dba0 1010
e551498e
GH		 1011#define HAVE_CHARDEV_TTY 1
1012
6f97dba0 1013typedef struct {
093d3a20 1014 GIOChannel *fd;
6f97dba0 1015 int connected;
6f97dba0 1016 int read_bytes;
8aa33caf 1017 guint timer_tag;
6f97dba0
AL		 1018} PtyCharDriver;
1019
1020static void pty_chr_update_read_handler(CharDriverState *chr);
1021static void pty_chr_state(CharDriverState *chr, int connected);
1022
8aa33caf
AL		 1023static gboolean pty_chr_timer(gpointer opaque)
1024{
1025 struct CharDriverState *chr = opaque;
1026 PtyCharDriver *s = chr->opaque;
1027
79f20075 1028 s->timer_tag = 0;
b0d768c3
GH		 1029 if (!s->connected) {
1030 /* Next poll ... */
1031 pty_chr_update_read_handler(chr);
1032 }
8aa33caf
AL		 1033 return FALSE;
1034}
1035
1036static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1037{
1038 PtyCharDriver *s = chr->opaque;
1039
1040 if (s->timer_tag) {
1041 g_source_remove(s->timer_tag);
1042 s->timer_tag = 0;
1043 }
1044
1045 if (ms == 1000) {
1046 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1047 } else {
1048 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1049 }
1050}
1051
6f97dba0
AL		 1052static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1053{
1054 PtyCharDriver *s = chr->opaque;
1055
1056 if (!s->connected) {
1057 /* guest sends data, check for (re-)connect */
1058 pty_chr_update_read_handler(chr);
1059 return 0;
1060 }
684a096e 1061 return io_channel_send(s->fd, buf, len);
6f97dba0
AL		 1062}
1063
e6a87ed8
AL		 1064static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1065{
1066 PtyCharDriver *s = chr->opaque;
1067 return g_io_create_watch(s->fd, cond);
1068}
1069
6f97dba0
AL		 1070static int pty_chr_read_poll(void *opaque)
1071{
1072 CharDriverState *chr = opaque;
1073 PtyCharDriver *s = chr->opaque;
1074
909cda12 1075 s->read_bytes = qemu_chr_be_can_write(chr);
6f97dba0
AL		 1076 return s->read_bytes;
1077}
1078
093d3a20 1079static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 1080{
1081 CharDriverState *chr = opaque;
1082 PtyCharDriver *s = chr->opaque;
093d3a20 1083 gsize size, len;
9bd7854e 1084 uint8_t buf[READ_BUF_LEN];
093d3a20 1085 GIOStatus status;
6f97dba0
AL		 1086
1087 len = sizeof(buf);
1088 if (len > s->read_bytes)
1089 len = s->read_bytes;
cdbf6e16
PB		 1090 if (len == 0) {
1091 return TRUE;
1092 }
093d3a20
AL		 1093 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1094 if (status != G_IO_STATUS_NORMAL) {
6f97dba0 1095 pty_chr_state(chr, 0);
093d3a20
AL		 1096 return FALSE;
1097 } else {
6f97dba0 1098 pty_chr_state(chr, 1);
fa5efccb 1099 qemu_chr_be_write(chr, buf, size);
6f97dba0 1100 }
093d3a20 1101 return TRUE;
6f97dba0
AL		 1102}
1103
1104static void pty_chr_update_read_handler(CharDriverState *chr)
1105{
1106 PtyCharDriver *s = chr->opaque;
85a67692 1107 GPollFD pfd;
6f97dba0 1108
85a67692
PB		 1109 pfd.fd = g_io_channel_unix_get_fd(s->fd);
1110 pfd.events = G_IO_OUT;
1111 pfd.revents = 0;
1112 g_poll(&pfd, 1, 0);
1113 if (pfd.revents & G_IO_HUP) {
1114 pty_chr_state(chr, 0);
1115 } else {
1116 pty_chr_state(chr, 1);
093d3a20 1117 }
6f97dba0
AL		 1118}
1119
1120static void pty_chr_state(CharDriverState *chr, int connected)
1121{
1122 PtyCharDriver *s = chr->opaque;
1123
1124 if (!connected) {
26da70c7 1125 remove_fd_in_watch(chr);
6f97dba0 1126 s->connected = 0;
6f97dba0
AL		 1127 /* (re-)connect poll interval for idle guests: once per second.
1128 * We check more frequently in case the guests sends data to
1129 * the virtual device linked to our pty. */
8aa33caf 1130 pty_chr_rearm_timer(chr, 1000);
6f97dba0 1131 } else {
85a67692
PB		 1132 if (s->timer_tag) {
1133 g_source_remove(s->timer_tag);
1134 s->timer_tag = 0;
1135 }
1136 if (!s->connected) {
85a67692 1137 s->connected = 1;
3a3567d3 1138 qemu_chr_be_generic_open(chr);
ac1b84dd
GH		 1139 }
1140 if (!chr->fd_in_tag) {
7ba9addc
AS		 1141 chr->fd_in_tag = io_add_watch_poll(s->fd, pty_chr_read_poll,
1142 pty_chr_read, chr);
85a67692 1143 }
6f97dba0
AL		 1144 }
1145}
1146
6f97dba0
AL		 1147static void pty_chr_close(struct CharDriverState *chr)
1148{
1149 PtyCharDriver *s = chr->opaque;
093d3a20 1150 int fd;
6f97dba0 1151
26da70c7 1152 remove_fd_in_watch(chr);
093d3a20
AL		 1153 fd = g_io_channel_unix_get_fd(s->fd);
1154 g_io_channel_unref(s->fd);
1155 close(fd);
8aa33caf
AL		 1156 if (s->timer_tag) {
1157 g_source_remove(s->timer_tag);
910b6368 1158 s->timer_tag = 0;
8aa33caf 1159 }
7267c094 1160 g_free(s);
a425d23f 1161 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1162}
1163
e68c5958
GH		 1164static CharDriverState *qemu_chr_open_pty(const char *id,
1165 ChardevReturn *ret)
6f97dba0
AL		 1166{
1167 CharDriverState *chr;
1168 PtyCharDriver *s;
e68c5958 1169 int master_fd, slave_fd;
6f97dba0 1170 char pty_name[PATH_MAX];
6f97dba0 1171
4efeabbb
MT		 1172 master_fd = qemu_openpty_raw(&slave_fd, pty_name);
1173 if (master_fd < 0) {
1f51470d 1174 return NULL;
6f97dba0
AL		 1175 }
1176
6f97dba0
AL		 1177 close(slave_fd);
1178
a4e26048
MA		 1179 chr = g_malloc0(sizeof(CharDriverState));
1180
4efeabbb
MT		 1181 chr->filename = g_strdup_printf("pty:%s", pty_name);
1182 ret->pty = g_strdup(pty_name);
e68c5958 1183 ret->has_pty = true;
58650218 1184
e68c5958 1185 fprintf(stderr, "char device redirected to %s (label %s)\n",
4efeabbb 1186 pty_name, id);
6f97dba0 1187
a4e26048 1188 s = g_malloc0(sizeof(PtyCharDriver));
6f97dba0
AL		 1189 chr->opaque = s;
1190 chr->chr_write = pty_chr_write;
1191 chr->chr_update_read_handler = pty_chr_update_read_handler;
1192 chr->chr_close = pty_chr_close;
e6a87ed8 1193 chr->chr_add_watch = pty_chr_add_watch;
bd5c51ee 1194 chr->explicit_be_open = true;
6f97dba0 1195
093d3a20 1196 s->fd = io_channel_from_fd(master_fd);
8aa33caf 1197 s->timer_tag = 0;
6f97dba0 1198
1f51470d 1199 return chr;
6f97dba0
AL		 1200}
1201
1202static void tty_serial_init(int fd, int speed,
1203 int parity, int data_bits, int stop_bits)
1204{
1205 struct termios tty;
1206 speed_t spd;
1207
1208#if 0
1209 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1210 speed, parity, data_bits, stop_bits);
1211#endif
1212 tcgetattr (fd, &tty);
1213
45eea13b
SW		 1214#define check_speed(val) if (speed <= val) { spd = B##val; break; }
1215 speed = speed * 10 / 11;
1216 do {
1217 check_speed(50);
1218 check_speed(75);
1219 check_speed(110);
1220 check_speed(134);
1221 check_speed(150);
1222 check_speed(200);
1223 check_speed(300);
1224 check_speed(600);
1225 check_speed(1200);
1226 check_speed(1800);
1227 check_speed(2400);
1228 check_speed(4800);
1229 check_speed(9600);
1230 check_speed(19200);
1231 check_speed(38400);
1232 /* Non-Posix values follow. They may be unsupported on some systems. */
1233 check_speed(57600);
1234 check_speed(115200);
1235#ifdef B230400
1236 check_speed(230400);
1237#endif
1238#ifdef B460800
1239 check_speed(460800);
1240#endif
1241#ifdef B500000
1242 check_speed(500000);
1243#endif
1244#ifdef B576000
1245 check_speed(576000);
1246#endif
1247#ifdef B921600
1248 check_speed(921600);
1249#endif
1250#ifdef B1000000
1251 check_speed(1000000);
1252#endif
1253#ifdef B1152000
1254 check_speed(1152000);
1255#endif
1256#ifdef B1500000
1257 check_speed(1500000);
1258#endif
1259#ifdef B2000000
1260 check_speed(2000000);
1261#endif
1262#ifdef B2500000
1263 check_speed(2500000);
1264#endif
1265#ifdef B3000000
1266 check_speed(3000000);
1267#endif
1268#ifdef B3500000
1269 check_speed(3500000);
1270#endif
1271#ifdef B4000000
1272 check_speed(4000000);
1273#endif
6f97dba0 1274 spd = B115200;
45eea13b 1275 } while (0);
6f97dba0
AL		 1276
1277 cfsetispeed(&tty, spd);
1278 cfsetospeed(&tty, spd);
1279
1280 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1281 |INLCR|IGNCR|ICRNL|IXON);
1282 tty.c_oflag |= OPOST;
1283 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1284 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1285 switch(data_bits) {
1286 default:
1287 case 8:
1288 tty.c_cflag |= CS8;
1289 break;
1290 case 7:
1291 tty.c_cflag |= CS7;
1292 break;
1293 case 6:
1294 tty.c_cflag |= CS6;
1295 break;
1296 case 5:
1297 tty.c_cflag |= CS5;
1298 break;
1299 }
1300 switch(parity) {
1301 default:
1302 case 'N':
1303 break;
1304 case 'E':
1305 tty.c_cflag |= PARENB;
1306 break;
1307 case 'O':
1308 tty.c_cflag |= PARENB | PARODD;
1309 break;
1310 }
1311 if (stop_bits == 2)
1312 tty.c_cflag |= CSTOPB;
1313
1314 tcsetattr (fd, TCSANOW, &tty);
1315}
1316
1317static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1318{
1319 FDCharDriver *s = chr->opaque;
1320
1321 switch(cmd) {
1322 case CHR_IOCTL_SERIAL_SET_PARAMS:
1323 {
1324 QEMUSerialSetParams *ssp = arg;
a29753f8
AL		 1325 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1326 ssp->speed, ssp->parity,
6f97dba0
AL		 1327 ssp->data_bits, ssp->stop_bits);
1328 }
1329 break;
1330 case CHR_IOCTL_SERIAL_SET_BREAK:
1331 {
1332 int enable = *(int *)arg;
a29753f8
AL		 1333 if (enable) {
1334 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1335 }
6f97dba0
AL		 1336 }
1337 break;
1338 case CHR_IOCTL_SERIAL_GET_TIOCM:
1339 {
1340 int sarg = 0;
1341 int *targ = (int *)arg;
a29753f8 1342 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
6f97dba0 1343 *targ = 0;
b4abdfa4 1344 if (sarg & TIOCM_CTS)
6f97dba0 1345 *targ |= CHR_TIOCM_CTS;
b4abdfa4 1346 if (sarg & TIOCM_CAR)
6f97dba0 1347 *targ |= CHR_TIOCM_CAR;
b4abdfa4 1348 if (sarg & TIOCM_DSR)
6f97dba0 1349 *targ |= CHR_TIOCM_DSR;
b4abdfa4 1350 if (sarg & TIOCM_RI)
6f97dba0 1351 *targ |= CHR_TIOCM_RI;
b4abdfa4 1352 if (sarg & TIOCM_DTR)
6f97dba0 1353 *targ |= CHR_TIOCM_DTR;
b4abdfa4 1354 if (sarg & TIOCM_RTS)
6f97dba0
AL		 1355 *targ |= CHR_TIOCM_RTS;
1356 }
1357 break;
1358 case CHR_IOCTL_SERIAL_SET_TIOCM:
1359 {
1360 int sarg = *(int *)arg;
1361 int targ = 0;
a29753f8 1362 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
b4abdfa4
AJ		 1363 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1364 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1365 if (sarg & CHR_TIOCM_CTS)
1366 targ |= TIOCM_CTS;
1367 if (sarg & CHR_TIOCM_CAR)
1368 targ |= TIOCM_CAR;
1369 if (sarg & CHR_TIOCM_DSR)
1370 targ |= TIOCM_DSR;
1371 if (sarg & CHR_TIOCM_RI)
1372 targ |= TIOCM_RI;
1373 if (sarg & CHR_TIOCM_DTR)
6f97dba0 1374 targ |= TIOCM_DTR;
b4abdfa4 1375 if (sarg & CHR_TIOCM_RTS)
6f97dba0 1376 targ |= TIOCM_RTS;
a29753f8 1377 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
6f97dba0
AL		 1378 }
1379 break;
1380 default:
1381 return -ENOTSUP;
1382 }
1383 return 0;
1384}
1385
4266a134
DA		 1386static void qemu_chr_close_tty(CharDriverState *chr)
1387{
1388 FDCharDriver *s = chr->opaque;
1389 int fd = -1;
1390
1391 if (s) {
a29753f8 1392 fd = g_io_channel_unix_get_fd(s->fd_in);
4266a134
DA		 1393 }
1394
1395 fd_chr_close(chr);
1396
1397 if (fd >= 0) {
1398 close(fd);
1399 }
1400}
1401
d59044ef
GH		 1402static CharDriverState *qemu_chr_open_tty_fd(int fd)
1403{
1404 CharDriverState *chr;
1405
1406 tty_serial_init(fd, 115200, 'N', 8, 1);
1407 chr = qemu_chr_open_fd(fd, fd);
1408 chr->chr_ioctl = tty_serial_ioctl;
1409 chr->chr_close = qemu_chr_close_tty;
1410 return chr;
1411}
6f97dba0
AL		 1412#endif /* __linux__ || __sun__ */
1413
1414#if defined(__linux__)
e551498e
GH		 1415
1416#define HAVE_CHARDEV_PARPORT 1
1417
6f97dba0
AL		 1418typedef struct {
1419 int fd;
1420 int mode;
1421} ParallelCharDriver;
1422
1423static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1424{
1425 if (s->mode != mode) {
1426 int m = mode;
1427 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1428 return 0;
1429 s->mode = mode;
1430 }
1431 return 1;
1432}
1433
1434static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1435{
1436 ParallelCharDriver *drv = chr->opaque;
1437 int fd = drv->fd;
1438 uint8_t b;
1439
1440 switch(cmd) {
1441 case CHR_IOCTL_PP_READ_DATA:
1442 if (ioctl(fd, PPRDATA, &b) < 0)
1443 return -ENOTSUP;
1444 *(uint8_t *)arg = b;
1445 break;
1446 case CHR_IOCTL_PP_WRITE_DATA:
1447 b = *(uint8_t *)arg;
1448 if (ioctl(fd, PPWDATA, &b) < 0)
1449 return -ENOTSUP;
1450 break;
1451 case CHR_IOCTL_PP_READ_CONTROL:
1452 if (ioctl(fd, PPRCONTROL, &b) < 0)
1453 return -ENOTSUP;
1454 /* Linux gives only the lowest bits, and no way to know data
1455 direction! For better compatibility set the fixed upper
1456 bits. */
1457 *(uint8_t *)arg = b | 0xc0;
1458 break;
1459 case CHR_IOCTL_PP_WRITE_CONTROL:
1460 b = *(uint8_t *)arg;
1461 if (ioctl(fd, PPWCONTROL, &b) < 0)
1462 return -ENOTSUP;
1463 break;
1464 case CHR_IOCTL_PP_READ_STATUS:
1465 if (ioctl(fd, PPRSTATUS, &b) < 0)
1466 return -ENOTSUP;
1467 *(uint8_t *)arg = b;
1468 break;
1469 case CHR_IOCTL_PP_DATA_DIR:
1470 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1471 return -ENOTSUP;
1472 break;
1473 case CHR_IOCTL_PP_EPP_READ_ADDR:
1474 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1475 struct ParallelIOArg *parg = arg;
1476 int n = read(fd, parg->buffer, parg->count);
1477 if (n != parg->count) {
1478 return -EIO;
1479 }
1480 }
1481 break;
1482 case CHR_IOCTL_PP_EPP_READ:
1483 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1484 struct ParallelIOArg *parg = arg;
1485 int n = read(fd, parg->buffer, parg->count);
1486 if (n != parg->count) {
1487 return -EIO;
1488 }
1489 }
1490 break;
1491 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1492 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1493 struct ParallelIOArg *parg = arg;
1494 int n = write(fd, parg->buffer, parg->count);
1495 if (n != parg->count) {
1496 return -EIO;
1497 }
1498 }
1499 break;
1500 case CHR_IOCTL_PP_EPP_WRITE:
1501 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1502 struct ParallelIOArg *parg = arg;
1503 int n = write(fd, parg->buffer, parg->count);
1504 if (n != parg->count) {
1505 return -EIO;
1506 }
1507 }
1508 break;
1509 default:
1510 return -ENOTSUP;
1511 }
1512 return 0;
1513}
1514
1515static void pp_close(CharDriverState *chr)
1516{
1517 ParallelCharDriver *drv = chr->opaque;
1518 int fd = drv->fd;
1519
1520 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1521 ioctl(fd, PPRELEASE);
1522 close(fd);
7267c094 1523 g_free(drv);
a425d23f 1524 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1525}
1526
88a946d3 1527static CharDriverState *qemu_chr_open_pp_fd(int fd)
6f97dba0
AL		 1528{
1529 CharDriverState *chr;
1530 ParallelCharDriver *drv;
6f97dba0
AL		 1531
1532 if (ioctl(fd, PPCLAIM) < 0) {
1533 close(fd);
1f51470d 1534 return NULL;
6f97dba0
AL		 1535 }
1536
7267c094 1537 drv = g_malloc0(sizeof(ParallelCharDriver));
6f97dba0
AL		 1538 drv->fd = fd;
1539 drv->mode = IEEE1284_MODE_COMPAT;
1540
7267c094 1541 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0
AL		 1542 chr->chr_write = null_chr_write;
1543 chr->chr_ioctl = pp_ioctl;
1544 chr->chr_close = pp_close;
1545 chr->opaque = drv;
1546
1f51470d 1547 return chr;
6f97dba0
AL		 1548}
1549#endif /* __linux__ */
1550
a167ba50 1551#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
e551498e
GH		 1552
1553#define HAVE_CHARDEV_PARPORT 1
1554
6972f935
BS		 1555static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1556{
e0efb993 1557 int fd = (int)(intptr_t)chr->opaque;
6972f935
BS		 1558 uint8_t b;
1559
1560 switch(cmd) {
1561 case CHR_IOCTL_PP_READ_DATA:
1562 if (ioctl(fd, PPIGDATA, &b) < 0)
1563 return -ENOTSUP;
1564 *(uint8_t *)arg = b;
1565 break;
1566 case CHR_IOCTL_PP_WRITE_DATA:
1567 b = *(uint8_t *)arg;
1568 if (ioctl(fd, PPISDATA, &b) < 0)
1569 return -ENOTSUP;
1570 break;
1571 case CHR_IOCTL_PP_READ_CONTROL:
1572 if (ioctl(fd, PPIGCTRL, &b) < 0)
1573 return -ENOTSUP;
1574 *(uint8_t *)arg = b;
1575 break;
1576 case CHR_IOCTL_PP_WRITE_CONTROL:
1577 b = *(uint8_t *)arg;
1578 if (ioctl(fd, PPISCTRL, &b) < 0)
1579 return -ENOTSUP;
1580 break;
1581 case CHR_IOCTL_PP_READ_STATUS:
1582 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1583 return -ENOTSUP;
1584 *(uint8_t *)arg = b;
1585 break;
1586 default:
1587 return -ENOTSUP;
1588 }
1589 return 0;
1590}
1591
88a946d3 1592static CharDriverState *qemu_chr_open_pp_fd(int fd)
6972f935
BS		 1593{
1594 CharDriverState *chr;
6972f935 1595
7267c094 1596 chr = g_malloc0(sizeof(CharDriverState));
e0efb993 1597 chr->opaque = (void *)(intptr_t)fd;
6972f935
BS		 1598 chr->chr_write = null_chr_write;
1599 chr->chr_ioctl = pp_ioctl;
bd5c51ee 1600 chr->explicit_be_open = true;
1f51470d 1601 return chr;
6972f935
BS		 1602}
1603#endif
1604
6f97dba0
AL		 1605#else /* _WIN32 */
1606
1607typedef struct {
1608 int max_size;
1609 HANDLE hcom, hrecv, hsend;
1610 OVERLAPPED orecv, osend;
1611 BOOL fpipe;
1612 DWORD len;
1613} WinCharState;
1614
db418a0a
FC		 1615typedef struct {
1616 HANDLE hStdIn;
1617 HANDLE hInputReadyEvent;
1618 HANDLE hInputDoneEvent;
1619 HANDLE hInputThread;
1620 uint8_t win_stdio_buf;
1621} WinStdioCharState;
1622
6f97dba0
AL		 1623#define NSENDBUF 2048
1624#define NRECVBUF 2048
1625#define MAXCONNECT 1
1626#define NTIMEOUT 5000
1627
1628static int win_chr_poll(void *opaque);
1629static int win_chr_pipe_poll(void *opaque);
1630
1631static void win_chr_close(CharDriverState *chr)
1632{
1633 WinCharState *s = chr->opaque;
1634
1635 if (s->hsend) {
1636 CloseHandle(s->hsend);
1637 s->hsend = NULL;
1638 }
1639 if (s->hrecv) {
1640 CloseHandle(s->hrecv);
1641 s->hrecv = NULL;
1642 }
1643 if (s->hcom) {
1644 CloseHandle(s->hcom);
1645 s->hcom = NULL;
1646 }
1647 if (s->fpipe)
1648 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1649 else
1650 qemu_del_polling_cb(win_chr_poll, chr);
793cbfb5 1651
a425d23f 1652 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1653}
1654
1655static int win_chr_init(CharDriverState *chr, const char *filename)
1656{
1657 WinCharState *s = chr->opaque;
1658 COMMCONFIG comcfg;
1659 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1660 COMSTAT comstat;
1661 DWORD size;
1662 DWORD err;
1663
1664 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1665 if (!s->hsend) {
1666 fprintf(stderr, "Failed CreateEvent\n");
1667 goto fail;
1668 }
1669 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1670 if (!s->hrecv) {
1671 fprintf(stderr, "Failed CreateEvent\n");
1672 goto fail;
1673 }
1674
1675 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1676 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1677 if (s->hcom == INVALID_HANDLE_VALUE) {
1678 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1679 s->hcom = NULL;
1680 goto fail;
1681 }
1682
1683 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1684 fprintf(stderr, "Failed SetupComm\n");
1685 goto fail;
1686 }
1687
1688 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1689 size = sizeof(COMMCONFIG);
1690 GetDefaultCommConfig(filename, &comcfg, &size);
1691 comcfg.dcb.DCBlength = sizeof(DCB);
1692 CommConfigDialog(filename, NULL, &comcfg);
1693
1694 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1695 fprintf(stderr, "Failed SetCommState\n");
1696 goto fail;
1697 }
1698
1699 if (!SetCommMask(s->hcom, EV_ERR)) {
1700 fprintf(stderr, "Failed SetCommMask\n");
1701 goto fail;
1702 }
1703
1704 cto.ReadIntervalTimeout = MAXDWORD;
1705 if (!SetCommTimeouts(s->hcom, &cto)) {
1706 fprintf(stderr, "Failed SetCommTimeouts\n");
1707 goto fail;
1708 }
1709
1710 if (!ClearCommError(s->hcom, &err, &comstat)) {
1711 fprintf(stderr, "Failed ClearCommError\n");
1712 goto fail;
1713 }
1714 qemu_add_polling_cb(win_chr_poll, chr);
1715 return 0;
1716
1717 fail:
1718 win_chr_close(chr);
1719 return -1;
1720}
1721
1722static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1723{
1724 WinCharState *s = chr->opaque;
1725 DWORD len, ret, size, err;
1726
1727 len = len1;
1728 ZeroMemory(&s->osend, sizeof(s->osend));
1729 s->osend.hEvent = s->hsend;
1730 while (len > 0) {
1731 if (s->hsend)
1732 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1733 else
1734 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1735 if (!ret) {
1736 err = GetLastError();
1737 if (err == ERROR_IO_PENDING) {
1738 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1739 if (ret) {
1740 buf += size;
1741 len -= size;
1742 } else {
1743 break;
1744 }
1745 } else {
1746 break;
1747 }
1748 } else {
1749 buf += size;
1750 len -= size;
1751 }
1752 }
1753 return len1 - len;
1754}
1755
1756static int win_chr_read_poll(CharDriverState *chr)
1757{
1758 WinCharState *s = chr->opaque;
1759
909cda12 1760 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 1761 return s->max_size;
1762}
1763
1764static void win_chr_readfile(CharDriverState *chr)
1765{
1766 WinCharState *s = chr->opaque;
1767 int ret, err;
9bd7854e 1768 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 1769 DWORD size;
1770
1771 ZeroMemory(&s->orecv, sizeof(s->orecv));
1772 s->orecv.hEvent = s->hrecv;
1773 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1774 if (!ret) {
1775 err = GetLastError();
1776 if (err == ERROR_IO_PENDING) {
1777 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1778 }
1779 }
1780
1781 if (size > 0) {
fa5efccb 1782 qemu_chr_be_write(chr, buf, size);
6f97dba0
AL		 1783 }
1784}
1785
1786static void win_chr_read(CharDriverState *chr)
1787{
1788 WinCharState *s = chr->opaque;
1789
1790 if (s->len > s->max_size)
1791 s->len = s->max_size;
1792 if (s->len == 0)
1793 return;
1794
1795 win_chr_readfile(chr);
1796}
1797
1798static int win_chr_poll(void *opaque)
1799{
1800 CharDriverState *chr = opaque;
1801 WinCharState *s = chr->opaque;
1802 COMSTAT status;
1803 DWORD comerr;
1804
1805 ClearCommError(s->hcom, &comerr, &status);
1806 if (status.cbInQue > 0) {
1807 s->len = status.cbInQue;
1808 win_chr_read_poll(chr);
1809 win_chr_read(chr);
1810 return 1;
1811 }
1812 return 0;
1813}
1814
d59044ef 1815static CharDriverState *qemu_chr_open_win_path(const char *filename)
6f97dba0
AL		 1816{
1817 CharDriverState *chr;
1818 WinCharState *s;
1819
7267c094
AL		 1820 chr = g_malloc0(sizeof(CharDriverState));
1821 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1822 chr->opaque = s;
1823 chr->chr_write = win_chr_write;
1824 chr->chr_close = win_chr_close;
1825
1826 if (win_chr_init(chr, filename) < 0) {
2e02e18b
SW		 1827 g_free(s);
1828 g_free(chr);
1f51470d 1829 return NULL;
6f97dba0 1830 }
1f51470d 1831 return chr;
6f97dba0
AL		 1832}
1833
1834static int win_chr_pipe_poll(void *opaque)
1835{
1836 CharDriverState *chr = opaque;
1837 WinCharState *s = chr->opaque;
1838 DWORD size;
1839
1840 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1841 if (size > 0) {
1842 s->len = size;
1843 win_chr_read_poll(chr);
1844 win_chr_read(chr);
1845 return 1;
1846 }
1847 return 0;
1848}
1849
1850static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1851{
1852 WinCharState *s = chr->opaque;
1853 OVERLAPPED ov;
1854 int ret;
1855 DWORD size;
1856 char openname[256];
1857
1858 s->fpipe = TRUE;
1859
1860 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1861 if (!s->hsend) {
1862 fprintf(stderr, "Failed CreateEvent\n");
1863 goto fail;
1864 }
1865 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1866 if (!s->hrecv) {
1867 fprintf(stderr, "Failed CreateEvent\n");
1868 goto fail;
1869 }
1870
1871 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1872 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1873 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1874 PIPE_WAIT,
1875 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1876 if (s->hcom == INVALID_HANDLE_VALUE) {
1877 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1878 s->hcom = NULL;
1879 goto fail;
1880 }
1881
1882 ZeroMemory(&ov, sizeof(ov));
1883 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1884 ret = ConnectNamedPipe(s->hcom, &ov);
1885 if (ret) {
1886 fprintf(stderr, "Failed ConnectNamedPipe\n");
1887 goto fail;
1888 }
1889
1890 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1891 if (!ret) {
1892 fprintf(stderr, "Failed GetOverlappedResult\n");
1893 if (ov.hEvent) {
1894 CloseHandle(ov.hEvent);
1895 ov.hEvent = NULL;
1896 }
1897 goto fail;
1898 }
1899
1900 if (ov.hEvent) {
1901 CloseHandle(ov.hEvent);
1902 ov.hEvent = NULL;
1903 }
1904 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1905 return 0;
1906
1907 fail:
1908 win_chr_close(chr);
1909 return -1;
1910}
1911
1912
548cbb36 1913static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
6f97dba0 1914{
548cbb36 1915 const char *filename = opts->device;
6f97dba0
AL		 1916 CharDriverState *chr;
1917 WinCharState *s;
1918
7267c094
AL		 1919 chr = g_malloc0(sizeof(CharDriverState));
1920 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1921 chr->opaque = s;
1922 chr->chr_write = win_chr_write;
1923 chr->chr_close = win_chr_close;
1924
1925 if (win_chr_pipe_init(chr, filename) < 0) {
2e02e18b
SW		 1926 g_free(s);
1927 g_free(chr);
1f51470d 1928 return NULL;
6f97dba0 1929 }
1f51470d 1930 return chr;
6f97dba0
AL		 1931}
1932
1f51470d 1933static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
6f97dba0
AL		 1934{
1935 CharDriverState *chr;
1936 WinCharState *s;
1937
7267c094
AL		 1938 chr = g_malloc0(sizeof(CharDriverState));
1939 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1940 s->hcom = fd_out;
1941 chr->opaque = s;
1942 chr->chr_write = win_chr_write;
1f51470d 1943 return chr;
6f97dba0
AL		 1944}
1945
d9ac374f 1946static CharDriverState *qemu_chr_open_win_con(void)
6f97dba0 1947{
1f51470d 1948 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
6f97dba0
AL		 1949}
1950
db418a0a
FC		 1951static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1952{
1953 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1954 DWORD dwSize;
1955 int len1;
1956
1957 len1 = len;
1958
1959 while (len1 > 0) {
1960 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1961 break;
1962 }
1963 buf += dwSize;
1964 len1 -= dwSize;
1965 }
1966
1967 return len - len1;
1968}
1969
1970static void win_stdio_wait_func(void *opaque)
1971{
1972 CharDriverState *chr = opaque;
1973 WinStdioCharState *stdio = chr->opaque;
1974 INPUT_RECORD buf[4];
1975 int ret;
1976 DWORD dwSize;
1977 int i;
1978
dff7424d 1979 ret = ReadConsoleInput(stdio->hStdIn, buf, ARRAY_SIZE(buf), &dwSize);
db418a0a
FC		 1980
1981 if (!ret) {
1982 /* Avoid error storm */
1983 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1984 return;
1985 }
1986
1987 for (i = 0; i < dwSize; i++) {
1988 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1989
1990 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1991 int j;
1992 if (kev->uChar.AsciiChar != 0) {
1993 for (j = 0; j < kev->wRepeatCount; j++) {
1994 if (qemu_chr_be_can_write(chr)) {
1995 uint8_t c = kev->uChar.AsciiChar;
1996 qemu_chr_be_write(chr, &c, 1);
1997 }
1998 }
1999 }
2000 }
2001 }
2002}
2003
2004static DWORD WINAPI win_stdio_thread(LPVOID param)
2005{
2006 CharDriverState *chr = param;
2007 WinStdioCharState *stdio = chr->opaque;
2008 int ret;
2009 DWORD dwSize;
2010
2011 while (1) {
2012
2013 /* Wait for one byte */
2014 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2015
2016 /* Exit in case of error, continue if nothing read */
2017 if (!ret) {
2018 break;
2019 }
2020 if (!dwSize) {
2021 continue;
2022 }
2023
2024 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2025 if (stdio->win_stdio_buf == '\r') {
2026 continue;
2027 }
2028
2029 /* Signal the main thread and wait until the byte was eaten */
2030 if (!SetEvent(stdio->hInputReadyEvent)) {
2031 break;
2032 }
2033 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2034 != WAIT_OBJECT_0) {
2035 break;
2036 }
2037 }
2038
2039 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2040 return 0;
2041}
2042
2043static void win_stdio_thread_wait_func(void *opaque)
2044{
2045 CharDriverState *chr = opaque;
2046 WinStdioCharState *stdio = chr->opaque;
2047
2048 if (qemu_chr_be_can_write(chr)) {
2049 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2050 }
2051
2052 SetEvent(stdio->hInputDoneEvent);
2053}
2054
2055static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2056{
2057 WinStdioCharState *stdio = chr->opaque;
2058 DWORD dwMode = 0;
2059
2060 GetConsoleMode(stdio->hStdIn, &dwMode);
2061
2062 if (echo) {
2063 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2064 } else {
2065 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2066 }
2067}
2068
2069static void win_stdio_close(CharDriverState *chr)
2070{
2071 WinStdioCharState *stdio = chr->opaque;
2072
2073 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2074 CloseHandle(stdio->hInputReadyEvent);
2075 }
2076 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2077 CloseHandle(stdio->hInputDoneEvent);
2078 }
2079 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2080 TerminateThread(stdio->hInputThread, 0);
2081 }
2082
2083 g_free(chr->opaque);
2084 g_free(chr);
db418a0a
FC		 2085}
2086
7c358031 2087static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
db418a0a
FC		 2088{
2089 CharDriverState *chr;
2090 WinStdioCharState *stdio;
2091 DWORD dwMode;
2092 int is_console = 0;
2093
db418a0a
FC		 2094 chr = g_malloc0(sizeof(CharDriverState));
2095 stdio = g_malloc0(sizeof(WinStdioCharState));
2096
2097 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2098 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2099 fprintf(stderr, "cannot open stdio: invalid handle\n");
2100 exit(1);
2101 }
2102
2103 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2104
2105 chr->opaque = stdio;
2106 chr->chr_write = win_stdio_write;
2107 chr->chr_close = win_stdio_close;
2108
ed7a1540
AL		 2109 if (is_console) {
2110 if (qemu_add_wait_object(stdio->hStdIn,
2111 win_stdio_wait_func, chr)) {
2112 fprintf(stderr, "qemu_add_wait_object: failed\n");
2113 }
2114 } else {
2115 DWORD dwId;
2116
2117 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2118 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2119 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2120 chr, 0, &dwId);
2121
2122 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2123 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2124 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2125 fprintf(stderr, "cannot create stdio thread or event\n");
2126 exit(1);
2127 }
2128 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2129 win_stdio_thread_wait_func, chr)) {
2130 fprintf(stderr, "qemu_add_wait_object: failed\n");
db418a0a
FC		 2131 }
2132 }
2133
2134 dwMode |= ENABLE_LINE_INPUT;
2135
ed7a1540 2136 if (is_console) {
db418a0a
FC		 2137 /* set the terminal in raw mode */
2138 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2139 dwMode |= ENABLE_PROCESSED_INPUT;
2140 }
2141
2142 SetConsoleMode(stdio->hStdIn, dwMode);
2143
2144 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2145 qemu_chr_fe_set_echo(chr, false);
2146
1f51470d 2147 return chr;
db418a0a 2148}
6f97dba0
AL		 2149#endif /* !_WIN32 */
2150
5ab8211b 2151
6f97dba0
AL		 2152/***********************************************************/
2153/* UDP Net console */
2154
2155typedef struct {
2156 int fd;
76a9644b 2157 GIOChannel *chan;
9bd7854e 2158 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2159 int bufcnt;
2160 int bufptr;
2161 int max_size;
2162} NetCharDriver;
2163
2164static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2165{
2166 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2167 gsize bytes_written;
2168 GIOStatus status;
2169
2170 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2171 if (status == G_IO_STATUS_EOF) {
2172 return 0;
2173 } else if (status != G_IO_STATUS_NORMAL) {
2174 return -1;
2175 }
6f97dba0 2176
76a9644b 2177 return bytes_written;
6f97dba0
AL		 2178}
2179
2180static int udp_chr_read_poll(void *opaque)
2181{
2182 CharDriverState *chr = opaque;
2183 NetCharDriver *s = chr->opaque;
2184
909cda12 2185 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2186
2187 /* If there were any stray characters in the queue process them
2188 * first
2189 */
2190 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2191 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2192 s->bufptr++;
909cda12 2193 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2194 }
2195 return s->max_size;
2196}
2197
76a9644b 2198static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 2199{
2200 CharDriverState *chr = opaque;
2201 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2202 gsize bytes_read = 0;
2203 GIOStatus status;
6f97dba0 2204
cdbf6e16
PB		 2205 if (s->max_size == 0) {
2206 return TRUE;
2207 }
76a9644b
AL		 2208 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2209 &bytes_read, NULL);
2210 s->bufcnt = bytes_read;
6f97dba0 2211 s->bufptr = s->bufcnt;
76a9644b 2212 if (status != G_IO_STATUS_NORMAL) {
26da70c7 2213 remove_fd_in_watch(chr);
76a9644b
AL		 2214 return FALSE;
2215 }
6f97dba0
AL		 2216
2217 s->bufptr = 0;
2218 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2219 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2220 s->bufptr++;
909cda12 2221 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0 2222 }
76a9644b
AL		 2223
2224 return TRUE;
6f97dba0
AL		 2225}
2226
2227static void udp_chr_update_read_handler(CharDriverState *chr)
2228{
2229 NetCharDriver *s = chr->opaque;
2230
26da70c7 2231 remove_fd_in_watch(chr);
76a9644b 2232 if (s->chan) {
7ba9addc
AS		 2233 chr->fd_in_tag = io_add_watch_poll(s->chan, udp_chr_read_poll,
2234 udp_chr_read, chr);
6f97dba0
AL		 2235 }
2236}
2237
819f56b7
AL		 2238static void udp_chr_close(CharDriverState *chr)
2239{
2240 NetCharDriver *s = chr->opaque;
26da70c7
AS		 2241
2242 remove_fd_in_watch(chr);
76a9644b
AL		 2243 if (s->chan) {
2244 g_io_channel_unref(s->chan);
819f56b7
AL		 2245 closesocket(s->fd);
2246 }
7267c094 2247 g_free(s);
a425d23f 2248 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
819f56b7
AL		 2249}
2250
3ecc059d 2251static CharDriverState *qemu_chr_open_udp_fd(int fd)
6f97dba0
AL		 2252{
2253 CharDriverState *chr = NULL;
2254 NetCharDriver *s = NULL;
6f97dba0 2255
7267c094
AL		 2256 chr = g_malloc0(sizeof(CharDriverState));
2257 s = g_malloc0(sizeof(NetCharDriver));
6f97dba0 2258
6f97dba0 2259 s->fd = fd;
76a9644b 2260 s->chan = io_channel_from_socket(s->fd);
6f97dba0
AL		 2261 s->bufcnt = 0;
2262 s->bufptr = 0;
2263 chr->opaque = s;
2264 chr->chr_write = udp_chr_write;
2265 chr->chr_update_read_handler = udp_chr_update_read_handler;
819f56b7 2266 chr->chr_close = udp_chr_close;
bd5c51ee
MR		 2267 /* be isn't opened until we get a connection */
2268 chr->explicit_be_open = true;
1f51470d 2269 return chr;
3ecc059d 2270}
6f97dba0 2271
3ecc059d
GH		 2272static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2273{
2274 Error *local_err = NULL;
2275 int fd = -1;
2276
2277 fd = inet_dgram_opts(opts, &local_err);
2278 if (fd < 0) {
58a3714c
GH		 2279 qerror_report_err(local_err);
2280 error_free(local_err);
3ecc059d 2281 return NULL;
6e1db57b 2282 }
3ecc059d 2283 return qemu_chr_open_udp_fd(fd);
6f97dba0
AL		 2284}
2285
2286/***********************************************************/
2287/* TCP Net console */
2288
2289typedef struct {
2ea5a7af
AL		 2290
2291 GIOChannel *chan, *listen_chan;
7ba9addc 2292 guint listen_tag;
6f97dba0
AL		 2293 int fd, listen_fd;
2294 int connected;
2295 int max_size;
2296 int do_telnetopt;
2297 int do_nodelay;
2298 int is_unix;
7d174059 2299 int msgfd;
6f97dba0
AL		 2300} TCPCharDriver;
2301
2ea5a7af 2302static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
6f97dba0
AL		 2303
2304static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2305{
2306 TCPCharDriver *s = chr->opaque;
2307 if (s->connected) {
684a096e 2308 return io_channel_send(s->chan, buf, len);
455aa1e0 2309 } else {
6db0fdce 2310 /* XXX: indicate an error ? */
455aa1e0 2311 return len;
6f97dba0
AL		 2312 }
2313}
2314
2315static int tcp_chr_read_poll(void *opaque)
2316{
2317 CharDriverState *chr = opaque;
2318 TCPCharDriver *s = chr->opaque;
2319 if (!s->connected)
2320 return 0;
909cda12 2321 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2322 return s->max_size;
2323}
2324
2325#define IAC 255
2326#define IAC_BREAK 243
2327static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2328 TCPCharDriver *s,
2329 uint8_t *buf, int *size)
2330{
2331 /* Handle any telnet client's basic IAC options to satisfy char by
2332 * char mode with no echo. All IAC options will be removed from
2333 * the buf and the do_telnetopt variable will be used to track the
2334 * state of the width of the IAC information.
2335 *
2336 * IAC commands come in sets of 3 bytes with the exception of the
2337 * "IAC BREAK" command and the double IAC.
2338 */
2339
2340 int i;
2341 int j = 0;
2342
2343 for (i = 0; i < *size; i++) {
2344 if (s->do_telnetopt > 1) {
2345 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2346 /* Double IAC means send an IAC */
2347 if (j != i)
2348 buf[j] = buf[i];
2349 j++;
2350 s->do_telnetopt = 1;
2351 } else {
2352 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2353 /* Handle IAC break commands by sending a serial break */
a425d23f 2354 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 2355 s->do_telnetopt++;
2356 }
2357 s->do_telnetopt++;
2358 }
2359 if (s->do_telnetopt >= 4) {
2360 s->do_telnetopt = 1;
2361 }
2362 } else {
2363 if ((unsigned char)buf[i] == IAC) {
2364 s->do_telnetopt = 2;
2365 } else {
2366 if (j != i)
2367 buf[j] = buf[i];
2368 j++;
2369 }
2370 }
2371 }
2372 *size = j;
2373}
2374
7d174059
MM		 2375static int tcp_get_msgfd(CharDriverState *chr)
2376{
2377 TCPCharDriver *s = chr->opaque;
e53f27b9
PB		 2378 int fd = s->msgfd;
2379 s->msgfd = -1;
2380 return fd;
7d174059
MM		 2381}
2382
73bcc2ac 2383#ifndef _WIN32
7d174059
MM		 2384static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2385{
2386 TCPCharDriver *s = chr->opaque;
2387 struct cmsghdr *cmsg;
2388
2389 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2390 int fd;
2391
2392 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2393 cmsg->cmsg_level != SOL_SOCKET ||
2394 cmsg->cmsg_type != SCM_RIGHTS)
2395 continue;
2396
2397 fd = *((int *)CMSG_DATA(cmsg));
2398 if (fd < 0)
2399 continue;
2400
9b938c72
SH		 2401 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
2402 qemu_set_block(fd);
2403
06138651
CB		 2404#ifndef MSG_CMSG_CLOEXEC
2405 qemu_set_cloexec(fd);
2406#endif
7d174059
MM		 2407 if (s->msgfd != -1)
2408 close(s->msgfd);
2409 s->msgfd = fd;
2410 }
2411}
2412
9977c894
MM		 2413static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2414{
2415 TCPCharDriver *s = chr->opaque;
7cba04f6 2416 struct msghdr msg = { NULL, };
9977c894 2417 struct iovec iov[1];
7d174059
MM		 2418 union {
2419 struct cmsghdr cmsg;
2420 char control[CMSG_SPACE(sizeof(int))];
2421 } msg_control;
06138651 2422 int flags = 0;
7d174059 2423 ssize_t ret;
9977c894
MM		 2424
2425 iov[0].iov_base = buf;
2426 iov[0].iov_len = len;
2427
2428 msg.msg_iov = iov;
2429 msg.msg_iovlen = 1;
7d174059
MM		 2430 msg.msg_control = &msg_control;
2431 msg.msg_controllen = sizeof(msg_control);
2432
06138651
CB		 2433#ifdef MSG_CMSG_CLOEXEC
2434 flags |= MSG_CMSG_CLOEXEC;
2435#endif
2436 ret = recvmsg(s->fd, &msg, flags);
2437 if (ret > 0 && s->is_unix) {
7d174059 2438 unix_process_msgfd(chr, &msg);
06138651 2439 }
9977c894 2440
7d174059 2441 return ret;
9977c894
MM		 2442}
2443#else
2444static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2445{
2446 TCPCharDriver *s = chr->opaque;
00aa0040 2447 return qemu_recv(s->fd, buf, len, 0);
9977c894
MM		 2448}
2449#endif
2450
d3cc5bc4
AS		 2451static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2452{
2453 TCPCharDriver *s = chr->opaque;
2454 return g_io_create_watch(s->chan, cond);
2455}
2456
2ea5a7af 2457static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 2458{
2459 CharDriverState *chr = opaque;
2460 TCPCharDriver *s = chr->opaque;
9bd7854e 2461 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2462 int len, size;
2463
2ea5a7af 2464 if (!s->connected || s->max_size <= 0) {
cdbf6e16 2465 return TRUE;
2ea5a7af 2466 }
6f97dba0
AL		 2467 len = sizeof(buf);
2468 if (len > s->max_size)
2469 len = s->max_size;
9977c894 2470 size = tcp_chr_recv(chr, (void *)buf, len);
6f97dba0
AL		 2471 if (size == 0) {
2472 /* connection closed */
2473 s->connected = 0;
2ea5a7af
AL		 2474 if (s->listen_chan) {
2475 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
6f97dba0 2476 }
26da70c7 2477 remove_fd_in_watch(chr);
2ea5a7af
AL		 2478 g_io_channel_unref(s->chan);
2479 s->chan = NULL;
6f97dba0
AL		 2480 closesocket(s->fd);
2481 s->fd = -1;
a425d23f 2482 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2483 } else if (size > 0) {
2484 if (s->do_telnetopt)
2485 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2486 if (size > 0)
fa5efccb 2487 qemu_chr_be_write(chr, buf, size);
6f97dba0 2488 }
2ea5a7af
AL		 2489
2490 return TRUE;
6f97dba0
AL		 2491}
2492
68c18d1c
BS		 2493#ifndef _WIN32
2494CharDriverState *qemu_chr_open_eventfd(int eventfd)
2495{
e9d21c43
DM		 2496 CharDriverState *chr = qemu_chr_open_fd(eventfd, eventfd);
2497
2498 if (chr) {
2499 chr->avail_connections = 1;
2500 }
2501
2502 return chr;
6cbf4c8c 2503}
68c18d1c 2504#endif
6cbf4c8c 2505
6f97dba0
AL		 2506static void tcp_chr_connect(void *opaque)
2507{
2508 CharDriverState *chr = opaque;
2509 TCPCharDriver *s = chr->opaque;
2510
2511 s->connected = 1;
2ea5a7af 2512 if (s->chan) {
7ba9addc
AS		 2513 chr->fd_in_tag = io_add_watch_poll(s->chan, tcp_chr_read_poll,
2514 tcp_chr_read, chr);
bbdd2ad0 2515 }
fee204fd 2516 qemu_chr_be_generic_open(chr);
6f97dba0
AL		 2517}
2518
ac1b84dd
GH		 2519static void tcp_chr_update_read_handler(CharDriverState *chr)
2520{
2521 TCPCharDriver *s = chr->opaque;
2522
2523 remove_fd_in_watch(chr);
2524 if (s->chan) {
2525 chr->fd_in_tag = io_add_watch_poll(s->chan, tcp_chr_read_poll,
2526 tcp_chr_read, chr);
2527 }
2528}
2529
6f97dba0
AL		 2530#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2531static void tcp_chr_telnet_init(int fd)
2532{
2533 char buf[3];
2534 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2535 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2536 send(fd, (char *)buf, 3, 0);
2537 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2538 send(fd, (char *)buf, 3, 0);
2539 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2540 send(fd, (char *)buf, 3, 0);
2541 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2542 send(fd, (char *)buf, 3, 0);
2543}
2544
13661089
DB		 2545static int tcp_chr_add_client(CharDriverState *chr, int fd)
2546{
2547 TCPCharDriver *s = chr->opaque;
2548 if (s->fd != -1)
2549 return -1;
2550
f9e8cacc 2551 qemu_set_nonblock(fd);
13661089
DB		 2552 if (s->do_nodelay)
2553 socket_set_nodelay(fd);
2554 s->fd = fd;
2ea5a7af 2555 s->chan = io_channel_from_socket(fd);
910b6368
PB		 2556 if (s->listen_tag) {
2557 g_source_remove(s->listen_tag);
2558 s->listen_tag = 0;
2559 }
13661089
DB		 2560 tcp_chr_connect(chr);
2561
2562 return 0;
2563}
2564
2ea5a7af 2565static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
6f97dba0
AL		 2566{
2567 CharDriverState *chr = opaque;
2568 TCPCharDriver *s = chr->opaque;
2569 struct sockaddr_in saddr;
2570#ifndef _WIN32
2571 struct sockaddr_un uaddr;
2572#endif
2573 struct sockaddr *addr;
2574 socklen_t len;
2575 int fd;
2576
2577 for(;;) {
2578#ifndef _WIN32
2579 if (s->is_unix) {
2580 len = sizeof(uaddr);
2581 addr = (struct sockaddr *)&uaddr;
2582 } else
2583#endif
2584 {
2585 len = sizeof(saddr);
2586 addr = (struct sockaddr *)&saddr;
2587 }
40ff6d7e 2588 fd = qemu_accept(s->listen_fd, addr, &len);
6f97dba0 2589 if (fd < 0 && errno != EINTR) {
79f20075 2590 s->listen_tag = 0;
2ea5a7af 2591 return FALSE;
6f97dba0
AL		 2592 } else if (fd >= 0) {
2593 if (s->do_telnetopt)
2594 tcp_chr_telnet_init(fd);
2595 break;
2596 }
2597 }
13661089
DB		 2598 if (tcp_chr_add_client(chr, fd) < 0)
2599 close(fd);
2ea5a7af
AL		 2600
2601 return TRUE;
6f97dba0
AL		 2602}
2603
2604static void tcp_chr_close(CharDriverState *chr)
2605{
2606 TCPCharDriver *s = chr->opaque;
819f56b7 2607 if (s->fd >= 0) {
26da70c7 2608 remove_fd_in_watch(chr);
2ea5a7af
AL		 2609 if (s->chan) {
2610 g_io_channel_unref(s->chan);
2611 }
6f97dba0 2612 closesocket(s->fd);
819f56b7
AL		 2613 }
2614 if (s->listen_fd >= 0) {
2ea5a7af
AL		 2615 if (s->listen_tag) {
2616 g_source_remove(s->listen_tag);
910b6368 2617 s->listen_tag = 0;
2ea5a7af
AL		 2618 }
2619 if (s->listen_chan) {
2620 g_io_channel_unref(s->listen_chan);
2621 }
6f97dba0 2622 closesocket(s->listen_fd);
819f56b7 2623 }
7267c094 2624 g_free(s);
a425d23f 2625 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2626}
2627
f6bd5d6e
GH		 2628static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2629 bool is_listen, bool is_telnet,
2630 bool is_waitconnect,
2631 Error **errp)
6f97dba0
AL		 2632{
2633 CharDriverState *chr = NULL;
2634 TCPCharDriver *s = NULL;
f6bd5d6e
GH		 2635 char host[NI_MAXHOST], serv[NI_MAXSERV];
2636 const char *left = "", *right = "";
2637 struct sockaddr_storage ss;
2638 socklen_t ss_len = sizeof(ss);
2639
2640 memset(&ss, 0, ss_len);
2641 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
20c39760 2642 error_setg_errno(errp, errno, "getsockname");
f6bd5d6e
GH		 2643 return NULL;
2644 }
2645
2646 chr = g_malloc0(sizeof(CharDriverState));
2647 s = g_malloc0(sizeof(TCPCharDriver));
2648
2649 s->connected = 0;
2650 s->fd = -1;
2651 s->listen_fd = -1;
2652 s->msgfd = -1;
2653
2654 chr->filename = g_malloc(256);
2655 switch (ss.ss_family) {
2656#ifndef _WIN32
2657 case AF_UNIX:
2658 s->is_unix = 1;
2659 snprintf(chr->filename, 256, "unix:%s%s",
2660 ((struct sockaddr_un *)(&ss))->sun_path,
2661 is_listen ? ",server" : "");
2662 break;
2663#endif
2664 case AF_INET6:
2665 left = "[";
2666 right = "]";
2667 /* fall through */
2668 case AF_INET:
2669 s->do_nodelay = do_nodelay;
2670 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2671 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
e5545854 2672 snprintf(chr->filename, 256, "%s:%s%s%s:%s%s",
f6bd5d6e
GH		 2673 is_telnet ? "telnet" : "tcp",
2674 left, host, right, serv,
2675 is_listen ? ",server" : "");
2676 break;
2677 }
2678
2679 chr->opaque = s;
2680 chr->chr_write = tcp_chr_write;
2681 chr->chr_close = tcp_chr_close;
2682 chr->get_msgfd = tcp_get_msgfd;
2683 chr->chr_add_client = tcp_chr_add_client;
d3cc5bc4 2684 chr->chr_add_watch = tcp_chr_add_watch;
ac1b84dd 2685 chr->chr_update_read_handler = tcp_chr_update_read_handler;
bd5c51ee
MR		 2686 /* be isn't opened until we get a connection */
2687 chr->explicit_be_open = true;
f6bd5d6e
GH		 2688
2689 if (is_listen) {
2690 s->listen_fd = fd;
2ea5a7af
AL		 2691 s->listen_chan = io_channel_from_socket(s->listen_fd);
2692 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
f6bd5d6e
GH		 2693 if (is_telnet) {
2694 s->do_telnetopt = 1;
2695 }
2696 } else {
2697 s->connected = 1;
2698 s->fd = fd;
2699 socket_set_nodelay(fd);
2ea5a7af 2700 s->chan = io_channel_from_socket(s->fd);
f6bd5d6e
GH		 2701 tcp_chr_connect(chr);
2702 }
2703
2704 if (is_listen && is_waitconnect) {
fdca2124
GH		 2705 fprintf(stderr, "QEMU waiting for connection on: %s\n",
2706 chr->filename);
2ea5a7af 2707 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
f9e8cacc 2708 qemu_set_nonblock(s->listen_fd);
f6bd5d6e
GH		 2709 }
2710 return chr;
2711}
2712
2713static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2714{
2715 CharDriverState *chr = NULL;
87d5f24f 2716 Error *local_err = NULL;
aeb2c47a 2717 int fd = -1;
e990a393
LG		 2718
2719 bool is_listen = qemu_opt_get_bool(opts, "server", false);
2720 bool is_waitconnect = is_listen && qemu_opt_get_bool(opts, "wait", true);
2721 bool is_telnet = qemu_opt_get_bool(opts, "telnet", false);
2722 bool do_nodelay = !qemu_opt_get_bool(opts, "delay", true);
2723 bool is_unix = qemu_opt_get(opts, "path") != NULL;
6f97dba0 2724
f07b6003
AL		 2725 if (is_unix) {
2726 if (is_listen) {
87d5f24f 2727 fd = unix_listen_opts(opts, &local_err);
f07b6003 2728 } else {
87d5f24f 2729 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2730 }
2731 } else {
2732 if (is_listen) {
87d5f24f 2733 fd = inet_listen_opts(opts, 0, &local_err);
f07b6003 2734 } else {
87d5f24f 2735 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2736 }
2737 }
a89dd6c3 2738 if (fd < 0) {
6f97dba0 2739 goto fail;
a89dd6c3 2740 }
6f97dba0
AL		 2741
2742 if (!is_waitconnect)
f9e8cacc 2743 qemu_set_nonblock(fd);
6f97dba0 2744
f6bd5d6e
GH		 2745 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2746 is_waitconnect, &local_err);
84d18f06 2747 if (local_err) {
f6bd5d6e 2748 goto fail;
6f97dba0 2749 }
1f51470d 2750 return chr;
aeb2c47a 2751
f6bd5d6e 2752
6f97dba0 2753 fail:
87d5f24f
PB		 2754 if (local_err) {
2755 qerror_report_err(local_err);
2756 error_free(local_err);
2757 }
2758 if (fd >= 0) {
6f97dba0 2759 closesocket(fd);
87d5f24f 2760 }
f6bd5d6e
GH		 2761 if (chr) {
2762 g_free(chr->opaque);
2763 g_free(chr);
2764 }
1f51470d 2765 return NULL;
6f97dba0
AL		 2766}
2767
51767e7c 2768/*********************************************************/
3949e594 2769/* Ring buffer chardev */
51767e7c
LL		 2770
2771typedef struct {
2772 size_t size;
2773 size_t prod;
2774 size_t cons;
2775 uint8_t *cbuf;
3949e594 2776} RingBufCharDriver;
51767e7c 2777
3949e594 2778static size_t ringbuf_count(const CharDriverState *chr)
51767e7c 2779{
3949e594 2780 const RingBufCharDriver *d = chr->opaque;
51767e7c 2781
5c230105 2782 return d->prod - d->cons;
51767e7c
LL		 2783}
2784
3949e594 2785static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
51767e7c 2786{
3949e594 2787 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2788 int i;
2789
2790 if (!buf || (len < 0)) {
2791 return -1;
2792 }
2793
2794 for (i = 0; i < len; i++ ) {
5c230105
MA		 2795 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2796 if (d->prod - d->cons > d->size) {
51767e7c
LL		 2797 d->cons = d->prod - d->size;
2798 }
2799 }
2800
2801 return 0;
2802}
2803
3949e594 2804static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
51767e7c 2805{
3949e594 2806 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2807 int i;
2808
5c230105
MA		 2809 for (i = 0; i < len && d->cons != d->prod; i++) {
2810 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
51767e7c
LL		 2811 }
2812
2813 return i;
2814}
2815
3949e594 2816static void ringbuf_chr_close(struct CharDriverState *chr)
51767e7c 2817{
3949e594 2818 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2819
2820 g_free(d->cbuf);
2821 g_free(d);
2822 chr->opaque = NULL;
2823}
2824
4f57378f
MA		 2825static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
2826 Error **errp)
51767e7c
LL		 2827{
2828 CharDriverState *chr;
3949e594 2829 RingBufCharDriver *d;
51767e7c
LL		 2830
2831 chr = g_malloc0(sizeof(CharDriverState));
2832 d = g_malloc(sizeof(*d));
2833
1da48c65 2834 d->size = opts->has_size ? opts->size : 65536;
51767e7c
LL		 2835
2836 /* The size must be power of 2 */
2837 if (d->size & (d->size - 1)) {
4f57378f 2838 error_setg(errp, "size of ringbuf chardev must be power of two");
51767e7c
LL		 2839 goto fail;
2840 }
2841
2842 d->prod = 0;
2843 d->cons = 0;
2844 d->cbuf = g_malloc0(d->size);
2845
2846 chr->opaque = d;
3949e594
MA		 2847 chr->chr_write = ringbuf_chr_write;
2848 chr->chr_close = ringbuf_chr_close;
51767e7c
LL		 2849
2850 return chr;
2851
2852fail:
2853 g_free(d);
2854 g_free(chr);
2855 return NULL;
2856}
2857
8e597779 2858bool chr_is_ringbuf(const CharDriverState *chr)
1f590cf9 2859{
3949e594 2860 return chr->chr_write == ringbuf_chr_write;
1f590cf9
LL		 2861}
2862
3949e594 2863void qmp_ringbuf_write(const char *device, const char *data,
82e59a67 2864 bool has_format, enum DataFormat format,
1f590cf9
LL		 2865 Error **errp)
2866{
2867 CharDriverState *chr;
c4f331b6 2868 const uint8_t *write_data;
1f590cf9 2869 int ret;
3d1bba20 2870 gsize write_count;
1f590cf9
LL		 2871
2872 chr = qemu_chr_find(device);
2873 if (!chr) {
1a69278e 2874 error_setg(errp, "Device '%s' not found", device);
1f590cf9
LL		 2875 return;
2876 }
2877
3949e594
MA		 2878 if (!chr_is_ringbuf(chr)) {
2879 error_setg(errp,"%s is not a ringbuf device", device);
1f590cf9
LL		 2880 return;
2881 }
2882
1f590cf9
LL		 2883 if (has_format && (format == DATA_FORMAT_BASE64)) {
2884 write_data = g_base64_decode(data, &write_count);
2885 } else {
2886 write_data = (uint8_t *)data;
82e59a67 2887 write_count = strlen(data);
1f590cf9
LL		 2888 }
2889
3949e594 2890 ret = ringbuf_chr_write(chr, write_data, write_count);
1f590cf9 2891
13289fb5
MA		 2892 if (write_data != (uint8_t *)data) {
2893 g_free((void *)write_data);
2894 }
2895
1f590cf9
LL		 2896 if (ret < 0) {
2897 error_setg(errp, "Failed to write to device %s", device);
2898 return;
2899 }
2900}
2901
3949e594 2902char *qmp_ringbuf_read(const char *device, int64_t size,
3ab651fc
MA		 2903 bool has_format, enum DataFormat format,
2904 Error **errp)
49b6d722
LL		 2905{
2906 CharDriverState *chr;
c4f331b6 2907 uint8_t *read_data;
49b6d722 2908 size_t count;
3ab651fc 2909 char *data;
49b6d722
LL		 2910
2911 chr = qemu_chr_find(device);
2912 if (!chr) {
1a69278e 2913 error_setg(errp, "Device '%s' not found", device);
49b6d722
LL		 2914 return NULL;
2915 }
2916
3949e594
MA		 2917 if (!chr_is_ringbuf(chr)) {
2918 error_setg(errp,"%s is not a ringbuf device", device);
49b6d722
LL		 2919 return NULL;
2920 }
2921
2922 if (size <= 0) {
2923 error_setg(errp, "size must be greater than zero");
2924 return NULL;
2925 }
2926
3949e594 2927 count = ringbuf_count(chr);
49b6d722 2928 size = size > count ? count : size;
44f3bcd2 2929 read_data = g_malloc(size + 1);
49b6d722 2930
3949e594 2931 ringbuf_chr_read(chr, read_data, size);
49b6d722
LL		 2932
2933 if (has_format && (format == DATA_FORMAT_BASE64)) {
3ab651fc 2934 data = g_base64_encode(read_data, size);
13289fb5 2935 g_free(read_data);
49b6d722 2936 } else {
3949e594
MA		 2937 /*
2938 * FIXME should read only complete, valid UTF-8 characters up
2939 * to @size bytes. Invalid sequences should be replaced by a
2940 * suitable replacement character. Except when (and only
2941 * when) ring buffer lost characters since last read, initial
2942 * continuation characters should be dropped.
2943 */
44f3bcd2 2944 read_data[size] = 0;
3ab651fc 2945 data = (char *)read_data;
49b6d722
LL		 2946 }
2947
3ab651fc 2948 return data;
49b6d722
LL		 2949}
2950
33521634 2951QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
191bc01b 2952{
6ea314d9 2953 char host[65], port[33], width[8], height[8];
aeb2c47a 2954 int pos;
7d31544f 2955 const char *p;
191bc01b 2956 QemuOpts *opts;
8be7e7e4 2957 Error *local_err = NULL;
191bc01b 2958
8be7e7e4 2959 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
84d18f06 2960 if (local_err) {
8be7e7e4
LC		 2961 qerror_report_err(local_err);
2962 error_free(local_err);
191bc01b 2963 return NULL;
8be7e7e4 2964 }
191bc01b 2965
7591c5c1
GH		 2966 if (strstart(filename, "mon:", &p)) {
2967 filename = p;
2968 qemu_opt_set(opts, "mux", "on");
02c4bdf1
PB		 2969 if (strcmp(filename, "stdio") == 0) {
2970 /* Monitor is muxed to stdio: do not exit on Ctrl+C by default
2971 * but pass it to the guest. Handle this only for compat syntax,
2972 * for -chardev syntax we have special option for this.
2973 * This is what -nographic did, redirecting+muxing serial+monitor
2974 * to stdio causing Ctrl+C to be passed to guest. */
2975 qemu_opt_set(opts, "signal", "off");
2976 }
7591c5c1
GH		 2977 }
2978
f0457e8d
GH		 2979 if (strcmp(filename, "null") == 0 ||
2980 strcmp(filename, "pty") == 0 ||
2981 strcmp(filename, "msmouse") == 0 ||
dc1c21e6 2982 strcmp(filename, "braille") == 0 ||
f0457e8d 2983 strcmp(filename, "stdio") == 0) {
4490dadf 2984 qemu_opt_set(opts, "backend", filename);
191bc01b
GH		 2985 return opts;
2986 }
6ea314d9
GH		 2987 if (strstart(filename, "vc", &p)) {
2988 qemu_opt_set(opts, "backend", "vc");
2989 if (*p == ':') {
49aa4058 2990 if (sscanf(p+1, "%7[0-9]x%7[0-9]", width, height) == 2) {
6ea314d9
GH		 2991 /* pixels */
2992 qemu_opt_set(opts, "width", width);
2993 qemu_opt_set(opts, "height", height);
49aa4058 2994 } else if (sscanf(p+1, "%7[0-9]Cx%7[0-9]C", width, height) == 2) {
6ea314d9
GH		 2995 /* chars */
2996 qemu_opt_set(opts, "cols", width);
2997 qemu_opt_set(opts, "rows", height);
2998 } else {
2999 goto fail;
3000 }
3001 }
3002 return opts;
3003 }
d6c983cd
GH		 3004 if (strcmp(filename, "con:") == 0) {
3005 qemu_opt_set(opts, "backend", "console");
3006 return opts;
3007 }
48b76496
GH		 3008 if (strstart(filename, "COM", NULL)) {
3009 qemu_opt_set(opts, "backend", "serial");
3010 qemu_opt_set(opts, "path", filename);
3011 return opts;
3012 }
7d31544f
GH		 3013 if (strstart(filename, "file:", &p)) {
3014 qemu_opt_set(opts, "backend", "file");
3015 qemu_opt_set(opts, "path", p);
3016 return opts;
3017 }
3018 if (strstart(filename, "pipe:", &p)) {
3019 qemu_opt_set(opts, "backend", "pipe");
3020 qemu_opt_set(opts, "path", p);
3021 return opts;
3022 }
aeb2c47a
GH		 3023 if (strstart(filename, "tcp:", &p) ||
3024 strstart(filename, "telnet:", &p)) {
3025 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3026 host[0] = 0;
3027 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3028 goto fail;
3029 }
3030 qemu_opt_set(opts, "backend", "socket");
3031 qemu_opt_set(opts, "host", host);
3032 qemu_opt_set(opts, "port", port);
3033 if (p[pos] == ',') {
3034 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3035 goto fail;
3036 }
3037 if (strstart(filename, "telnet:", &p))
3038 qemu_opt_set(opts, "telnet", "on");
3039 return opts;
3040 }
7e1b35b4
GH		 3041 if (strstart(filename, "udp:", &p)) {
3042 qemu_opt_set(opts, "backend", "udp");
3043 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3044 host[0] = 0;
39324ca4 3045 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
7e1b35b4
GH		 3046 goto fail;
3047 }
3048 }
3049 qemu_opt_set(opts, "host", host);
3050 qemu_opt_set(opts, "port", port);
3051 if (p[pos] == '@') {
3052 p += pos + 1;
3053 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3054 host[0] = 0;
3055 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
7e1b35b4
GH		 3056 goto fail;
3057 }
3058 }
3059 qemu_opt_set(opts, "localaddr", host);
3060 qemu_opt_set(opts, "localport", port);
3061 }
3062 return opts;
3063 }
aeb2c47a
GH		 3064 if (strstart(filename, "unix:", &p)) {
3065 qemu_opt_set(opts, "backend", "socket");
3066 if (qemu_opts_do_parse(opts, p, "path") != 0)
3067 goto fail;
3068 return opts;
3069 }
48b76496
GH		 3070 if (strstart(filename, "/dev/parport", NULL) ||
3071 strstart(filename, "/dev/ppi", NULL)) {
3072 qemu_opt_set(opts, "backend", "parport");
3073 qemu_opt_set(opts, "path", filename);
3074 return opts;
3075 }
3076 if (strstart(filename, "/dev/", NULL)) {
3077 qemu_opt_set(opts, "backend", "tty");
3078 qemu_opt_set(opts, "path", filename);
3079 return opts;
3080 }
191bc01b 3081
aeb2c47a 3082fail:
191bc01b
GH		 3083 qemu_opts_del(opts);
3084 return NULL;
3085}
3086
846e2e49
GH		 3087static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3088 Error **errp)
3089{
3090 const char *path = qemu_opt_get(opts, "path");
3091
3092 if (path == NULL) {
3093 error_setg(errp, "chardev: file: no filename given");
3094 return;
3095 }
3096 backend->file = g_new0(ChardevFile, 1);
3097 backend->file->out = g_strdup(path);
3098}
3099
7c358031
GH		 3100static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3101 Error **errp)
3102{
3103 backend->stdio = g_new0(ChardevStdio, 1);
3104 backend->stdio->has_signal = true;
02c4bdf1 3105 backend->stdio->signal = qemu_opt_get_bool(opts, "signal", true);
7c358031
GH		 3106}
3107
0f1cb51d
GH		 3108static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3109 Error **errp)
3110{
3111 const char *device = qemu_opt_get(opts, "path");
3112
3113 if (device == NULL) {
3114 error_setg(errp, "chardev: serial/tty: no device path given");
3115 return;
3116 }
3117 backend->serial = g_new0(ChardevHostdev, 1);
3118 backend->serial->device = g_strdup(device);
3119}
3120
dc375097
GH		 3121static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3122 Error **errp)
3123{
3124 const char *device = qemu_opt_get(opts, "path");
3125
3126 if (device == NULL) {
3127 error_setg(errp, "chardev: parallel: no device path given");
3128 return;
3129 }
3130 backend->parallel = g_new0(ChardevHostdev, 1);
3131 backend->parallel->device = g_strdup(device);
3132}
3133
548cbb36
GH		 3134static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3135 Error **errp)
3136{
3137 const char *device = qemu_opt_get(opts, "path");
3138
3139 if (device == NULL) {
3140 error_setg(errp, "chardev: pipe: no device path given");
3141 return;
3142 }
3143 backend->pipe = g_new0(ChardevHostdev, 1);
3144 backend->pipe->device = g_strdup(device);
3145}
3146
4f57378f
MA		 3147static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
3148 Error **errp)
1da48c65
GH		 3149{
3150 int val;
3151
3a1da42e 3152 backend->ringbuf = g_new0(ChardevRingbuf, 1);
1da48c65 3153
0f953051 3154 val = qemu_opt_get_size(opts, "size", 0);
1da48c65 3155 if (val != 0) {
3a1da42e
MA		 3156 backend->ringbuf->has_size = true;
3157 backend->ringbuf->size = val;
1da48c65
GH		 3158 }
3159}
3160
bb6fb7c0
GH		 3161static void qemu_chr_parse_mux(QemuOpts *opts, ChardevBackend *backend,
3162 Error **errp)
3163{
3164 const char *chardev = qemu_opt_get(opts, "chardev");
3165
3166 if (chardev == NULL) {
3167 error_setg(errp, "chardev: mux: no chardev given");
3168 return;
3169 }
3170 backend->mux = g_new0(ChardevMux, 1);
3171 backend->mux->chardev = g_strdup(chardev);
3172}
3173
d654f34e 3174typedef struct CharDriver {
191bc01b 3175 const char *name;
2c5f4882 3176 /* old, pre qapi */
1f51470d 3177 CharDriverState *(*open)(QemuOpts *opts);
2c5f4882 3178 /* new, qapi-based */
99aec012 3179 ChardevBackendKind kind;
2c5f4882 3180 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
d654f34e
AL		 3181} CharDriver;
3182
3183static GSList *backends;
3184
3185void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3186{
3187 CharDriver *s;
3188
3189 s = g_malloc0(sizeof(*s));
3190 s->name = g_strdup(name);
3191 s->open = open;
3192
3193 backends = g_slist_append(backends, s);
3194}
191bc01b 3195
99aec012 3196void register_char_driver_qapi(const char *name, ChardevBackendKind kind,
2c5f4882
GH		 3197 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3198{
3199 CharDriver *s;
3200
3201 s = g_malloc0(sizeof(*s));
3202 s->name = g_strdup(name);
3203 s->kind = kind;
3204 s->parse = parse;
3205
3206 backends = g_slist_append(backends, s);
3207}
3208
f69554b9 3209CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
bd2d80b2
GH		 3210 void (*init)(struct CharDriverState *s),
3211 Error **errp)
191bc01b 3212{
0aff637e 3213 Error *local_err = NULL;
d654f34e 3214 CharDriver *cd;
191bc01b 3215 CharDriverState *chr;
d654f34e 3216 GSList *i;
191bc01b
GH		 3217
3218 if (qemu_opts_id(opts) == NULL) {
312fd5f2 3219 error_setg(errp, "chardev: no id specified");
2274ae9d 3220 goto err;
191bc01b
GH		 3221 }
3222
1bbd185f 3223 if (qemu_opt_get(opts, "backend") == NULL) {
312fd5f2 3224 error_setg(errp, "chardev: \"%s\" missing backend",
bd2d80b2 3225 qemu_opts_id(opts));
2274ae9d 3226 goto err;
1bbd185f 3227 }
d654f34e
AL		 3228 for (i = backends; i; i = i->next) {
3229 cd = i->data;
3230
3231 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
191bc01b 3232 break;
d654f34e 3233 }
191bc01b 3234 }
d654f34e 3235 if (i == NULL) {
312fd5f2 3236 error_setg(errp, "chardev: backend \"%s\" not found",
bd2d80b2 3237 qemu_opt_get(opts, "backend"));
e668287d 3238 goto err;
191bc01b
GH		 3239 }
3240
2c5f4882
GH		 3241 if (!cd->open) {
3242 /* using new, qapi init */
3243 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3244 ChardevReturn *ret = NULL;
3245 const char *id = qemu_opts_id(opts);
dc2c4eca 3246 char *bid = NULL;
edb2fb3c
GH		 3247
3248 if (qemu_opt_get_bool(opts, "mux", 0)) {
3249 bid = g_strdup_printf("%s-base", id);
3250 }
2c5f4882
GH		 3251
3252 chr = NULL;
3253 backend->kind = cd->kind;
3254 if (cd->parse) {
0aff637e
MA		 3255 cd->parse(opts, backend, &local_err);
3256 if (local_err) {
3257 error_propagate(errp, local_err);
2c5f4882
GH		 3258 goto qapi_out;
3259 }
3260 }
edb2fb3c 3261 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
5f758366 3262 if (!ret) {
2c5f4882
GH		 3263 goto qapi_out;
3264 }
edb2fb3c
GH		 3265
3266 if (bid) {
3267 qapi_free_ChardevBackend(backend);
3268 qapi_free_ChardevReturn(ret);
3269 backend = g_new0(ChardevBackend, 1);
3270 backend->mux = g_new0(ChardevMux, 1);
3271 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3272 backend->mux->chardev = g_strdup(bid);
3273 ret = qmp_chardev_add(id, backend, errp);
5f758366 3274 if (!ret) {
ee6ee83d
GH		 3275 chr = qemu_chr_find(bid);
3276 qemu_chr_delete(chr);
3277 chr = NULL;
3278 goto qapi_out;
3279 }
edb2fb3c
GH		 3280 }
3281
2c5f4882 3282 chr = qemu_chr_find(id);
2ea3e2c1 3283 chr->opts = opts;
2c5f4882
GH		 3284
3285 qapi_out:
3286 qapi_free_ChardevBackend(backend);
3287 qapi_free_ChardevReturn(ret);
dc2c4eca 3288 g_free(bid);
2c5f4882
GH		 3289 return chr;
3290 }
3291
d654f34e 3292 chr = cd->open(opts);
1f51470d 3293 if (!chr) {
312fd5f2 3294 error_setg(errp, "chardev: opening backend \"%s\" failed",
bd2d80b2 3295 qemu_opt_get(opts, "backend"));
2274ae9d 3296 goto err;
191bc01b
GH		 3297 }
3298
3299 if (!chr->filename)
7267c094 3300 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
191bc01b 3301 chr->init = init;
bd5c51ee
MR		 3302 /* if we didn't create the chardev via qmp_chardev_add, we
3303 * need to send the OPENED event here
3304 */
3305 if (!chr->explicit_be_open) {
3306 qemu_chr_be_event(chr, CHR_EVENT_OPENED);
3307 }
72cf2d4f 3308 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
7591c5c1
GH		 3309
3310 if (qemu_opt_get_bool(opts, "mux", 0)) {
3311 CharDriverState *base = chr;
3312 int len = strlen(qemu_opts_id(opts)) + 6;
7267c094 3313 base->label = g_malloc(len);
7591c5c1
GH		 3314 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3315 chr = qemu_chr_open_mux(base);
3316 chr->filename = base->filename;
d5b27167 3317 chr->avail_connections = MAX_MUX;
72cf2d4f 3318 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
d5b27167
KK		 3319 } else {
3320 chr->avail_connections = 1;
7591c5c1 3321 }
7267c094 3322 chr->label = g_strdup(qemu_opts_id(opts));
2274ae9d 3323 chr->opts = opts;
191bc01b 3324 return chr;
2274ae9d
GH		 3325
3326err:
3327 qemu_opts_del(opts);
3328 return NULL;
191bc01b
GH		 3329}
3330
27143a44 3331CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
6f97dba0
AL		 3332{
3333 const char *p;
3334 CharDriverState *chr;
191bc01b 3335 QemuOpts *opts;
bd2d80b2 3336 Error *err = NULL;
191bc01b 3337
c845f401
GH		 3338 if (strstart(filename, "chardev:", &p)) {
3339 return qemu_chr_find(p);
3340 }
3341
191bc01b 3342 opts = qemu_chr_parse_compat(label, filename);
7e1b35b4
GH		 3343 if (!opts)
3344 return NULL;
6f97dba0 3345
bd2d80b2 3346 chr = qemu_chr_new_from_opts(opts, init, &err);
84d18f06 3347 if (err) {
4a44d85e 3348 error_report("%s", error_get_pretty(err));
bd2d80b2
GH		 3349 error_free(err);
3350 }
7e1b35b4 3351 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
456d6069 3352 qemu_chr_fe_claim_no_fail(chr);
7e1b35b4 3353 monitor_init(chr, MONITOR_USE_READLINE);
6f97dba0
AL		 3354 }
3355 return chr;
3356}
3357
15f31519 3358void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
c48855e1
PB		 3359{
3360 if (chr->chr_set_echo) {
3361 chr->chr_set_echo(chr, echo);
3362 }
3363}
3364
8e25daa8 3365void qemu_chr_fe_set_open(struct CharDriverState *chr, int fe_open)
7c32c4fe 3366{
8e25daa8 3367 if (chr->fe_open == fe_open) {
c0c4bd2c
HG		 3368 return;
3369 }
8e25daa8 3370 chr->fe_open = fe_open;
574b711a
HG		 3371 if (chr->chr_set_fe_open) {
3372 chr->chr_set_fe_open(chr, fe_open);
7c32c4fe
HG		 3373 }
3374}
3375
d61b0c9a
MAL		 3376void qemu_chr_fe_event(struct CharDriverState *chr, int event)
3377{
3378 if (chr->chr_fe_event) {
3379 chr->chr_fe_event(chr, event);
3380 }
3381}
3382
2c8a5942
KW		 3383int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3384 GIOFunc func, void *user_data)
23673ca7
AL		 3385{
3386 GSource *src;
3387 guint tag;
3388
3389 if (s->chr_add_watch == NULL) {
3390 return -ENOSYS;
3391 }
3392
3393 src = s->chr_add_watch(s, cond);
3394 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3395 tag = g_source_attach(src, NULL);
3396 g_source_unref(src);
3397
3398 return tag;
3399}
3400
44c473de
HG		 3401int qemu_chr_fe_claim(CharDriverState *s)
3402{
3403 if (s->avail_connections < 1) {
3404 return -1;
3405 }
3406 s->avail_connections--;
3407 return 0;
3408}
3409
3410void qemu_chr_fe_claim_no_fail(CharDriverState *s)
3411{
3412 if (qemu_chr_fe_claim(s) != 0) {
3413 fprintf(stderr, "%s: error chardev \"%s\" already used\n",
3414 __func__, s->label);
3415 exit(1);
3416 }
3417}
3418
3419void qemu_chr_fe_release(CharDriverState *s)
3420{
3421 s->avail_connections++;
3422}
3423
70f24fb6 3424void qemu_chr_delete(CharDriverState *chr)
6f97dba0 3425{
72cf2d4f 3426 QTAILQ_REMOVE(&chardevs, chr, next);
2274ae9d 3427 if (chr->chr_close) {
6f97dba0 3428 chr->chr_close(chr);
2274ae9d 3429 }
7267c094
AL		 3430 g_free(chr->filename);
3431 g_free(chr->label);
2274ae9d
GH		 3432 if (chr->opts) {
3433 qemu_opts_del(chr->opts);
3434 }
7267c094 3435 g_free(chr);
6f97dba0
AL		 3436}
3437
c5a415a0 3438ChardevInfoList *qmp_query_chardev(Error **errp)
6f97dba0 3439{
c5a415a0 3440 ChardevInfoList *chr_list = NULL;
6f97dba0
AL		 3441 CharDriverState *chr;
3442
72cf2d4f 3443 QTAILQ_FOREACH(chr, &chardevs, next) {
c5a415a0
LC		 3444 ChardevInfoList *info = g_malloc0(sizeof(*info));
3445 info->value = g_malloc0(sizeof(*info->value));
3446 info->value->label = g_strdup(chr->label);
3447 info->value->filename = g_strdup(chr->filename);
3448
3449 info->next = chr_list;
3450 chr_list = info;
6f97dba0 3451 }
588b3832 3452
c5a415a0 3453 return chr_list;
6f97dba0 3454}
c845f401 3455
77d1c3c6
MK		 3456ChardevBackendInfoList *qmp_query_chardev_backends(Error **errp)
3457{
3458 ChardevBackendInfoList *backend_list = NULL;
3459 CharDriver *c = NULL;
3460 GSList *i = NULL;
3461
3462 for (i = backends; i; i = i->next) {
3463 ChardevBackendInfoList *info = g_malloc0(sizeof(*info));
3464 c = i->data;
3465 info->value = g_malloc0(sizeof(*info->value));
3466 info->value->name = g_strdup(c->name);
3467
3468 info->next = backend_list;
3469 backend_list = info;
3470 }
3471
3472 return backend_list;
3473}
3474
c845f401
GH		 3475CharDriverState *qemu_chr_find(const char *name)
3476{
3477 CharDriverState *chr;
3478
72cf2d4f 3479 QTAILQ_FOREACH(chr, &chardevs, next) {
c845f401
GH		 3480 if (strcmp(chr->label, name) != 0)
3481 continue;
3482 return chr;
3483 }
3484 return NULL;
3485}
0beb4942
AL		 3486
3487/* Get a character (serial) device interface. */
3488CharDriverState *qemu_char_get_next_serial(void)
3489{
3490 static int next_serial;
456d6069 3491 CharDriverState *chr;
0beb4942
AL		 3492
3493 /* FIXME: This function needs to go away: use chardev properties! */
456d6069
HG		 3494
3495 while (next_serial < MAX_SERIAL_PORTS && serial_hds[next_serial]) {
3496 chr = serial_hds[next_serial++];
3497 qemu_chr_fe_claim_no_fail(chr);
3498 return chr;
3499 }
3500 return NULL;
0beb4942
AL		 3501}
3502
4d454574
PB		 3503QemuOptsList qemu_chardev_opts = {
3504 .name = "chardev",
3505 .implied_opt_name = "backend",
3506 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3507 .desc = {
3508 {
3509 .name = "backend",
3510 .type = QEMU_OPT_STRING,
3511 },{
3512 .name = "path",
3513 .type = QEMU_OPT_STRING,
3514 },{
3515 .name = "host",
3516 .type = QEMU_OPT_STRING,
3517 },{
3518 .name = "port",
3519 .type = QEMU_OPT_STRING,
3520 },{
3521 .name = "localaddr",
3522 .type = QEMU_OPT_STRING,
3523 },{
3524 .name = "localport",
3525 .type = QEMU_OPT_STRING,
3526 },{
3527 .name = "to",
3528 .type = QEMU_OPT_NUMBER,
3529 },{
3530 .name = "ipv4",
3531 .type = QEMU_OPT_BOOL,
3532 },{
3533 .name = "ipv6",
3534 .type = QEMU_OPT_BOOL,
3535 },{
3536 .name = "wait",
3537 .type = QEMU_OPT_BOOL,
3538 },{
3539 .name = "server",
3540 .type = QEMU_OPT_BOOL,
3541 },{
3542 .name = "delay",
3543 .type = QEMU_OPT_BOOL,
3544 },{
3545 .name = "telnet",
3546 .type = QEMU_OPT_BOOL,
3547 },{
3548 .name = "width",
3549 .type = QEMU_OPT_NUMBER,
3550 },{
3551 .name = "height",
3552 .type = QEMU_OPT_NUMBER,
3553 },{
3554 .name = "cols",
3555 .type = QEMU_OPT_NUMBER,
3556 },{
3557 .name = "rows",
3558 .type = QEMU_OPT_NUMBER,
3559 },{
3560 .name = "mux",
3561 .type = QEMU_OPT_BOOL,
3562 },{
3563 .name = "signal",
3564 .type = QEMU_OPT_BOOL,
3565 },{
3566 .name = "name",
3567 .type = QEMU_OPT_STRING,
3568 },{
3569 .name = "debug",
3570 .type = QEMU_OPT_NUMBER,
51767e7c 3571 },{
3949e594 3572 .name = "size",
de1cc36e 3573 .type = QEMU_OPT_SIZE,
bb6fb7c0
GH		 3574 },{
3575 .name = "chardev",
3576 .type = QEMU_OPT_STRING,
4d454574
PB		 3577 },
3578 { /* end of list */ }
3579 },
3580};
f1a1a356 3581
ffbdbe59
GH		 3582#ifdef _WIN32
3583
3584static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3585{
3586 HANDLE out;
3587
e859eda5 3588 if (file->has_in) {
ffbdbe59
GH		 3589 error_setg(errp, "input file not supported");
3590 return NULL;
3591 }
3592
3593 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3594 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3595 if (out == INVALID_HANDLE_VALUE) {
3596 error_setg(errp, "open %s failed", file->out);
3597 return NULL;
3598 }
3599 return qemu_chr_open_win_file(out);
3600}
3601
d36b2b90
MA		 3602static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3603 Error **errp)
d59044ef 3604{
d36b2b90
MA		 3605 return qemu_chr_open_win_path(serial->device);
3606}
3607
3608static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3609 Error **errp)
3610{
3611 error_setg(errp, "character device backend type 'parallel' not supported");
3612 return NULL;
d59044ef
GH		 3613}
3614
ffbdbe59
GH		 3615#else /* WIN32 */
3616
3617static int qmp_chardev_open_file_source(char *src, int flags,
3618 Error **errp)
3619{
3620 int fd = -1;
3621
3622 TFR(fd = qemu_open(src, flags, 0666));
3623 if (fd == -1) {
20c39760 3624 error_setg_file_open(errp, errno, src);
ffbdbe59
GH		 3625 }
3626 return fd;
3627}
3628
3629static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3630{
5f758366 3631 int flags, in = -1, out;
ffbdbe59
GH		 3632
3633 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3634 out = qmp_chardev_open_file_source(file->out, flags, errp);
5f758366 3635 if (out < 0) {
ffbdbe59
GH		 3636 return NULL;
3637 }
3638
e859eda5 3639 if (file->has_in) {
ffbdbe59
GH		 3640 flags = O_RDONLY;
3641 in = qmp_chardev_open_file_source(file->in, flags, errp);
5f758366 3642 if (in < 0) {
ffbdbe59
GH		 3643 qemu_close(out);
3644 return NULL;
3645 }
3646 }
3647
3648 return qemu_chr_open_fd(in, out);
3649}
3650
d36b2b90
MA		 3651static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3652 Error **errp)
d59044ef 3653{
d59044ef 3654#ifdef HAVE_CHARDEV_TTY
d36b2b90
MA		 3655 int fd;
3656
3657 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
5f758366 3658 if (fd < 0) {
d36b2b90 3659 return NULL;
39099991 3660 }
f9e8cacc 3661 qemu_set_nonblock(fd);
d36b2b90
MA		 3662 return qemu_chr_open_tty_fd(fd);
3663#else
3664 error_setg(errp, "character device backend type 'serial' not supported");
3665 return NULL;
88a946d3 3666#endif
d36b2b90
MA		 3667}
3668
3669static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3670 Error **errp)
3671{
88a946d3 3672#ifdef HAVE_CHARDEV_PARPORT
d36b2b90
MA		 3673 int fd;
3674
3675 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
5f758366 3676 if (fd < 0) {
d59044ef
GH		 3677 return NULL;
3678 }
d36b2b90
MA		 3679 return qemu_chr_open_pp_fd(fd);
3680#else
3681 error_setg(errp, "character device backend type 'parallel' not supported");
3682 return NULL;
3683#endif
d59044ef
GH		 3684}
3685
ffbdbe59
GH		 3686#endif /* WIN32 */
3687
f6bd5d6e
GH		 3688static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3689 Error **errp)
3690{
3691 SocketAddress *addr = sock->addr;
3692 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3693 bool is_listen = sock->has_server ? sock->server : true;
3694 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3695 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3696 int fd;
3697
3698 if (is_listen) {
3699 fd = socket_listen(addr, errp);
3700 } else {
3701 fd = socket_connect(addr, errp, NULL, NULL);
3702 }
5f758366 3703 if (fd < 0) {
f6bd5d6e
GH		 3704 return NULL;
3705 }
3706 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3707 is_telnet, is_waitconnect, errp);
3708}
3709
08d0ab3f
LL		 3710static CharDriverState *qmp_chardev_open_udp(ChardevUdp *udp,
3711 Error **errp)
3ecc059d
GH		 3712{
3713 int fd;
3714
08d0ab3f 3715 fd = socket_dgram(udp->remote, udp->local, errp);
5f758366 3716 if (fd < 0) {
3ecc059d
GH		 3717 return NULL;
3718 }
3719 return qemu_chr_open_udp_fd(fd);
3720}
3721
f1a1a356
GH		 3722ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3723 Error **errp)
3724{
3725 ChardevReturn *ret = g_new0(ChardevReturn, 1);
edb2fb3c 3726 CharDriverState *base, *chr = NULL;
f1a1a356
GH		 3727
3728 chr = qemu_chr_find(id);
3729 if (chr) {
3730 error_setg(errp, "Chardev '%s' already exists", id);
3731 g_free(ret);
3732 return NULL;
3733 }
3734
3735 switch (backend->kind) {
ffbdbe59
GH		 3736 case CHARDEV_BACKEND_KIND_FILE:
3737 chr = qmp_chardev_open_file(backend->file, errp);
3738 break;
d36b2b90
MA		 3739 case CHARDEV_BACKEND_KIND_SERIAL:
3740 chr = qmp_chardev_open_serial(backend->serial, errp);
3741 break;
3742 case CHARDEV_BACKEND_KIND_PARALLEL:
3743 chr = qmp_chardev_open_parallel(backend->parallel, errp);
d59044ef 3744 break;
548cbb36
GH		 3745 case CHARDEV_BACKEND_KIND_PIPE:
3746 chr = qemu_chr_open_pipe(backend->pipe);
3747 break;
f6bd5d6e
GH		 3748 case CHARDEV_BACKEND_KIND_SOCKET:
3749 chr = qmp_chardev_open_socket(backend->socket, errp);
3750 break;
08d0ab3f
LL		 3751 case CHARDEV_BACKEND_KIND_UDP:
3752 chr = qmp_chardev_open_udp(backend->udp, errp);
3ecc059d 3753 break;
0a1a7fab
GH		 3754#ifdef HAVE_CHARDEV_TTY
3755 case CHARDEV_BACKEND_KIND_PTY:
e68c5958 3756 chr = qemu_chr_open_pty(id, ret);
0a1a7fab 3757 break;
0a1a7fab 3758#endif
f1a1a356 3759 case CHARDEV_BACKEND_KIND_NULL:
80dca9e6 3760 chr = qemu_chr_open_null();
f1a1a356 3761 break;
edb2fb3c
GH		 3762 case CHARDEV_BACKEND_KIND_MUX:
3763 base = qemu_chr_find(backend->mux->chardev);
3764 if (base == NULL) {
3765 error_setg(errp, "mux: base chardev %s not found",
3766 backend->mux->chardev);
3767 break;
3768 }
3769 chr = qemu_chr_open_mux(base);
3770 break;
f5a51cab
GH		 3771 case CHARDEV_BACKEND_KIND_MSMOUSE:
3772 chr = qemu_chr_open_msmouse();
3773 break;
2d57286d
GH		 3774#ifdef CONFIG_BRLAPI
3775 case CHARDEV_BACKEND_KIND_BRAILLE:
3776 chr = chr_baum_init();
3777 break;
3778#endif
7c358031
GH		 3779 case CHARDEV_BACKEND_KIND_STDIO:
3780 chr = qemu_chr_open_stdio(backend->stdio);
3781 break;
d9ac374f
GH		 3782#ifdef _WIN32
3783 case CHARDEV_BACKEND_KIND_CONSOLE:
3784 chr = qemu_chr_open_win_con();
3785 break;
cd153e2a
GH		 3786#endif
3787#ifdef CONFIG_SPICE
3788 case CHARDEV_BACKEND_KIND_SPICEVMC:
3789 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3790 break;
3791 case CHARDEV_BACKEND_KIND_SPICEPORT:
3792 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3793 break;
d9ac374f 3794#endif
702ec69c
GH		 3795 case CHARDEV_BACKEND_KIND_VC:
3796 chr = vc_init(backend->vc);
3797 break;
3a1da42e 3798 case CHARDEV_BACKEND_KIND_RINGBUF:
1da48c65 3799 case CHARDEV_BACKEND_KIND_MEMORY:
3a1da42e 3800 chr = qemu_chr_open_ringbuf(backend->ringbuf, errp);
1da48c65 3801 break;
f1a1a356
GH		 3802 default:
3803 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3804 break;
3805 }
3806
3894c787
MA		 3807 /*
3808 * Character backend open hasn't been fully converted to the Error
3809 * API. Some opens fail without setting an error. Set a generic
3810 * error then.
3811 * TODO full conversion to Error API
3812 */
3813 if (chr == NULL && errp && !*errp) {
f1a1a356
GH		 3814 error_setg(errp, "Failed to create chardev");
3815 }
3816 if (chr) {
3817 chr->label = g_strdup(id);
edb2fb3c
GH		 3818 chr->avail_connections =
3819 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
60d95386
GH		 3820 if (!chr->filename) {
3821 chr->filename = g_strdup(ChardevBackendKind_lookup[backend->kind]);
3822 }
bd5c51ee
MR		 3823 if (!chr->explicit_be_open) {
3824 qemu_chr_be_event(chr, CHR_EVENT_OPENED);
3825 }
f1a1a356
GH		 3826 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3827 return ret;
3828 } else {
3829 g_free(ret);
3830 return NULL;
3831 }
3832}
3833
3834void qmp_chardev_remove(const char *id, Error **errp)
3835{
3836 CharDriverState *chr;
3837
3838 chr = qemu_chr_find(id);
3839 if (NULL == chr) {
3840 error_setg(errp, "Chardev '%s' not found", id);
3841 return;
3842 }
3843 if (chr->chr_can_read || chr->chr_read ||
3844 chr->chr_event || chr->handler_opaque) {
3845 error_setg(errp, "Chardev '%s' is busy", id);
3846 return;
3847 }
3848 qemu_chr_delete(chr);
3849}
d654f34e
AL		 3850
3851static void register_types(void)
3852{
80dca9e6 3853 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
d654f34e
AL		 3854 register_char_driver("socket", qemu_chr_open_socket);
3855 register_char_driver("udp", qemu_chr_open_udp);
3a1da42e 3856 register_char_driver_qapi("ringbuf", CHARDEV_BACKEND_KIND_RINGBUF,
4f57378f 3857 qemu_chr_parse_ringbuf);
846e2e49
GH		 3858 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3859 qemu_chr_parse_file_out);
7c358031
GH		 3860 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3861 qemu_chr_parse_stdio);
0f1cb51d
GH		 3862 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3863 qemu_chr_parse_serial);
3864 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3865 qemu_chr_parse_serial);
dc375097
GH		 3866 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3867 qemu_chr_parse_parallel);
3868 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3869 qemu_chr_parse_parallel);
e68c5958 3870 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
d9ac374f 3871 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
548cbb36
GH		 3872 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3873 qemu_chr_parse_pipe);
bb6fb7c0
GH		 3874 register_char_driver_qapi("mux", CHARDEV_BACKEND_KIND_MUX,
3875 qemu_chr_parse_mux);
c11ed966
MA		 3876 /* Bug-compatibility: */
3877 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3878 qemu_chr_parse_ringbuf);
7b7ab18d
MR		 3879 /* this must be done after machine init, since we register FEs with muxes
3880 * as part of realize functions like serial_isa_realizefn when -nographic
3881 * is specified
3882 */
3883 qemu_add_machine_init_done_notifier(&muxes_realize_notify);
d654f34e
AL		 3884}
3885
3886type_init(register_types);
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