]> git.proxmox.com Git - qemu.git/blame - qemu-char.c
projects / qemu.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
move socket_set_nodelay to osdep.c
[qemu.git] / qemu-char.c
CommitLineData
6f97dba0
AL		 1/*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24#include "qemu-common.h"
83c9089e 25#include "monitor/monitor.h"
28ecbaee 26#include "ui/console.h"
9c17d615 27#include "sysemu/sysemu.h"
1de7afc9 28#include "qemu/timer.h"
927d4878 29#include "char/char.h"
cf3ebac7
AJ		 30#include "hw/usb.h"
31#include "hw/baum.h"
aa71cf80 32#include "hw/msmouse.h"
c5a415a0 33#include "qmp-commands.h"
6f97dba0
AL		 34
35#include <unistd.h>
36#include <fcntl.h>
6f97dba0
AL		 37#include <time.h>
38#include <errno.h>
39#include <sys/time.h>
40#include <zlib.h>
41
42#ifndef _WIN32
43#include <sys/times.h>
44#include <sys/wait.h>
45#include <termios.h>
46#include <sys/mman.h>
47#include <sys/ioctl.h>
24646c7e 48#include <sys/resource.h>
6f97dba0
AL		 49#include <sys/socket.h>
50#include <netinet/in.h>
24646c7e 51#include <net/if.h>
24646c7e 52#include <arpa/inet.h>
6f97dba0
AL		 53#include <dirent.h>
54#include <netdb.h>
55#include <sys/select.h>
71e72a19 56#ifdef CONFIG_BSD
6f97dba0 57#include <sys/stat.h>
a167ba50
AJ		 58#if defined(__GLIBC__)
59#include <pty.h>
3294ce18
MT		 60#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
61#include <libutil.h>
62#else
63#include <util.h>
a167ba50 64#endif
3294ce18
MT		 65#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
66#include <dev/ppbus/ppi.h>
67#include <dev/ppbus/ppbconf.h>
c5e97233 68#elif defined(__DragonFly__)
c5e97233
BS		 69#include <dev/misc/ppi/ppi.h>
70#include <bus/ppbus/ppbconf.h>
6f97dba0 71#endif
bbe813a2 72#else
6f97dba0 73#ifdef __linux__
6f97dba0
AL		 74#include <pty.h>
75
76#include <linux/ppdev.h>
77#include <linux/parport.h>
78#endif
79#ifdef __sun__
80#include <sys/stat.h>
81#include <sys/ethernet.h>
82#include <sys/sockio.h>
83#include <netinet/arp.h>
84#include <netinet/in.h>
85#include <netinet/in_systm.h>
86#include <netinet/ip.h>
87#include <netinet/ip_icmp.h> // must come after ip.h
88#include <netinet/udp.h>
89#include <netinet/tcp.h>
90#include <net/if.h>
91#include <syslog.h>
92#include <stropts.h>
93#endif
94#endif
95#endif
96
1de7afc9 97#include "qemu/sockets.h"
cbcc6336 98#include "ui/qemu-spice.h"
6f97dba0 99
9bd7854e
AS		 100#define READ_BUF_LEN 4096
101
6f97dba0
AL		 102/***********************************************************/
103/* character device */
104
72cf2d4f
BS		 105static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
106 QTAILQ_HEAD_INITIALIZER(chardevs);
2970a6c9 107
a425d23f 108void qemu_chr_be_event(CharDriverState *s, int event)
6f97dba0 109{
73cdf3f2
AG		 110 /* Keep track if the char device is open */
111 switch (event) {
112 case CHR_EVENT_OPENED:
113 s->opened = 1;
114 break;
115 case CHR_EVENT_CLOSED:
116 s->opened = 0;
117 break;
118 }
119
6f97dba0
AL		 120 if (!s->chr_event)
121 return;
122 s->chr_event(s->handler_opaque, event);
123}
124
ac4119c0 125static void qemu_chr_fire_open_event(void *opaque)
6f97dba0
AL		 126{
127 CharDriverState *s = opaque;
a425d23f 128 qemu_chr_be_event(s, CHR_EVENT_OPENED);
ac4119c0
JK		 129 qemu_free_timer(s->open_timer);
130 s->open_timer = NULL;
6f97dba0
AL		 131}
132
127338e6 133void qemu_chr_generic_open(CharDriverState *s)
6f97dba0 134{
ac4119c0 135 if (s->open_timer == NULL) {
06dec083 136 s->open_timer = qemu_new_timer_ms(rt_clock,
ac4119c0 137 qemu_chr_fire_open_event, s);
06dec083 138 qemu_mod_timer(s->open_timer, qemu_get_clock_ms(rt_clock) - 1);
6f97dba0
AL		 139 }
140}
141
2cc6e0a1 142int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
6f97dba0
AL		 143{
144 return s->chr_write(s, buf, len);
145}
146
41084f1b 147int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
6f97dba0
AL		 148{
149 if (!s->chr_ioctl)
150 return -ENOTSUP;
151 return s->chr_ioctl(s, cmd, arg);
152}
153
909cda12 154int qemu_chr_be_can_write(CharDriverState *s)
6f97dba0
AL		 155{
156 if (!s->chr_can_read)
157 return 0;
158 return s->chr_can_read(s->handler_opaque);
159}
160
fa5efccb 161void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
6f97dba0 162{
ac310734
SW		 163 if (s->chr_read) {
164 s->chr_read(s->handler_opaque, buf, len);
165 }
6f97dba0
AL		 166}
167
74c0d6f0 168int qemu_chr_fe_get_msgfd(CharDriverState *s)
7d174059
MM		 169{
170 return s->get_msgfd ? s->get_msgfd(s) : -1;
171}
172
13661089
DB		 173int qemu_chr_add_client(CharDriverState *s, int fd)
174{
175 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
176}
177
6f97dba0
AL		 178void qemu_chr_accept_input(CharDriverState *s)
179{
180 if (s->chr_accept_input)
181 s->chr_accept_input(s);
98c8ee1d 182 qemu_notify_event();
6f97dba0
AL		 183}
184
e7e71b0e 185void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
6f97dba0 186{
9bd7854e 187 char buf[READ_BUF_LEN];
6f97dba0
AL		 188 va_list ap;
189 va_start(ap, fmt);
190 vsnprintf(buf, sizeof(buf), fmt, ap);
2cc6e0a1 191 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
6f97dba0
AL		 192 va_end(ap);
193}
194
6f97dba0 195void qemu_chr_add_handlers(CharDriverState *s,
7b27a769 196 IOCanReadHandler *fd_can_read,
6f97dba0
AL		 197 IOReadHandler *fd_read,
198 IOEventHandler *fd_event,
199 void *opaque)
200{
da7d998b 201 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
2d6c1ef4 202 /* chr driver being released. */
d5b27167 203 ++s->avail_connections;
2d6c1ef4 204 }
6f97dba0
AL		 205 s->chr_can_read = fd_can_read;
206 s->chr_read = fd_read;
207 s->chr_event = fd_event;
208 s->handler_opaque = opaque;
209 if (s->chr_update_read_handler)
210 s->chr_update_read_handler(s);
73cdf3f2
AG		 211
212 /* We're connecting to an already opened device, so let's make sure we
213 also get the open event */
214 if (s->opened) {
215 qemu_chr_generic_open(s);
216 }
6f97dba0
AL		 217}
218
219static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
220{
221 return len;
222}
223
1f51470d 224static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
6f97dba0
AL		 225{
226 CharDriverState *chr;
227
7267c094 228 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0 229 chr->chr_write = null_chr_write;
1f51470d 230 return chr;
6f97dba0
AL		 231}
232
233/* MUX driver for serial I/O splitting */
6f97dba0
AL		 234#define MAX_MUX 4
235#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
236#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
237typedef struct {
7b27a769 238 IOCanReadHandler *chr_can_read[MAX_MUX];
6f97dba0
AL		 239 IOReadHandler *chr_read[MAX_MUX];
240 IOEventHandler *chr_event[MAX_MUX];
241 void *ext_opaque[MAX_MUX];
242 CharDriverState *drv;
799f1f23 243 int focus;
6f97dba0
AL		 244 int mux_cnt;
245 int term_got_escape;
246 int max_size;
a80bf99f
AL		 247 /* Intermediate input buffer allows to catch escape sequences even if the
248 currently active device is not accepting any input - but only until it
249 is full as well. */
250 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
251 int prod[MAX_MUX];
252 int cons[MAX_MUX];
2d22959d 253 int timestamps;
4ab312f7 254 int linestart;
2d22959d 255 int64_t timestamps_start;
6f97dba0
AL		 256} MuxDriver;
257
258
259static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
260{
261 MuxDriver *d = chr->opaque;
262 int ret;
2d22959d 263 if (!d->timestamps) {
6f97dba0
AL		 264 ret = d->drv->chr_write(d->drv, buf, len);
265 } else {
266 int i;
267
268 ret = 0;
4ab312f7
JK		 269 for (i = 0; i < len; i++) {
270 if (d->linestart) {
6f97dba0
AL		 271 char buf1[64];
272 int64_t ti;
273 int secs;
274
7bd427d8 275 ti = qemu_get_clock_ms(rt_clock);
2d22959d
JK		 276 if (d->timestamps_start == -1)
277 d->timestamps_start = ti;
278 ti -= d->timestamps_start;
a4bb1db8 279 secs = ti / 1000;
6f97dba0
AL		 280 snprintf(buf1, sizeof(buf1),
281 "[%02d:%02d:%02d.%03d] ",
282 secs / 3600,
283 (secs / 60) % 60,
284 secs % 60,
a4bb1db8 285 (int)(ti % 1000));
6f97dba0 286 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
4ab312f7
JK		 287 d->linestart = 0;
288 }
289 ret += d->drv->chr_write(d->drv, buf+i, 1);
290 if (buf[i] == '\n') {
291 d->linestart = 1;
6f97dba0
AL		 292 }
293 }
294 }
295 return ret;
296}
297
298static const char * const mux_help[] = {
299 "% h print this help\n\r",
300 "% x exit emulator\n\r",
301 "% s save disk data back to file (if -snapshot)\n\r",
302 "% t toggle console timestamps\n\r"
303 "% b send break (magic sysrq)\n\r",
304 "% c switch between console and monitor\n\r",
305 "% % sends %\n\r",
306 NULL
307};
308
309int term_escape_char = 0x01; /* ctrl-a is used for escape */
310static void mux_print_help(CharDriverState *chr)
311{
312 int i, j;
313 char ebuf[15] = "Escape-Char";
314 char cbuf[50] = "\n\r";
315
316 if (term_escape_char > 0 && term_escape_char < 26) {
317 snprintf(cbuf, sizeof(cbuf), "\n\r");
318 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
319 } else {
320 snprintf(cbuf, sizeof(cbuf),
321 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
322 term_escape_char);
323 }
324 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
325 for (i = 0; mux_help[i] != NULL; i++) {
326 for (j=0; mux_help[i][j] != '\0'; j++) {
327 if (mux_help[i][j] == '%')
328 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
329 else
330 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
331 }
332 }
333}
334
2724b180
AL		 335static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
336{
337 if (d->chr_event[mux_nr])
338 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
339}
340
6f97dba0
AL		 341static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
342{
343 if (d->term_got_escape) {
344 d->term_got_escape = 0;
345 if (ch == term_escape_char)
346 goto send_char;
347 switch(ch) {
348 case '?':
349 case 'h':
350 mux_print_help(chr);
351 break;
352 case 'x':
353 {
354 const char *term = "QEMU: Terminated\n\r";
355 chr->chr_write(chr,(uint8_t *)term,strlen(term));
356 exit(0);
357 break;
358 }
359 case 's':
6ab4b5ab 360 bdrv_commit_all();
6f97dba0
AL		 361 break;
362 case 'b':
a425d23f 363 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 364 break;
365 case 'c':
366 /* Switch to the next registered device */
799f1f23
GH		 367 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
368 d->focus++;
369 if (d->focus >= d->mux_cnt)
370 d->focus = 0;
371 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
6f97dba0 372 break;
2d22959d
JK		 373 case 't':
374 d->timestamps = !d->timestamps;
375 d->timestamps_start = -1;
4ab312f7 376 d->linestart = 0;
2d22959d 377 break;
6f97dba0
AL		 378 }
379 } else if (ch == term_escape_char) {
380 d->term_got_escape = 1;
381 } else {
382 send_char:
383 return 1;
384 }
385 return 0;
386}
387
388static void mux_chr_accept_input(CharDriverState *chr)
389{
6f97dba0 390 MuxDriver *d = chr->opaque;
799f1f23 391 int m = d->focus;
6f97dba0 392
a80bf99f 393 while (d->prod[m] != d->cons[m] &&
6f97dba0
AL		 394 d->chr_can_read[m] &&
395 d->chr_can_read[m](d->ext_opaque[m])) {
396 d->chr_read[m](d->ext_opaque[m],
a80bf99f 397 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
6f97dba0
AL		 398 }
399}
400
401static int mux_chr_can_read(void *opaque)
402{
403 CharDriverState *chr = opaque;
404 MuxDriver *d = chr->opaque;
799f1f23 405 int m = d->focus;
6f97dba0 406
a80bf99f 407 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
6f97dba0 408 return 1;
a80bf99f
AL		 409 if (d->chr_can_read[m])
410 return d->chr_can_read[m](d->ext_opaque[m]);
6f97dba0
AL		 411 return 0;
412}
413
414static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
415{
416 CharDriverState *chr = opaque;
417 MuxDriver *d = chr->opaque;
799f1f23 418 int m = d->focus;
6f97dba0
AL		 419 int i;
420
421 mux_chr_accept_input (opaque);
422
423 for(i = 0; i < size; i++)
424 if (mux_proc_byte(chr, d, buf[i])) {
a80bf99f 425 if (d->prod[m] == d->cons[m] &&
6f97dba0
AL		 426 d->chr_can_read[m] &&
427 d->chr_can_read[m](d->ext_opaque[m]))
428 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
429 else
a80bf99f 430 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
6f97dba0
AL		 431 }
432}
433
434static void mux_chr_event(void *opaque, int event)
435{
436 CharDriverState *chr = opaque;
437 MuxDriver *d = chr->opaque;
438 int i;
439
440 /* Send the event to all registered listeners */
441 for (i = 0; i < d->mux_cnt; i++)
2724b180 442 mux_chr_send_event(d, i, event);
6f97dba0
AL		 443}
444
445static void mux_chr_update_read_handler(CharDriverState *chr)
446{
447 MuxDriver *d = chr->opaque;
448
449 if (d->mux_cnt >= MAX_MUX) {
450 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
451 return;
452 }
453 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
454 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
455 d->chr_read[d->mux_cnt] = chr->chr_read;
456 d->chr_event[d->mux_cnt] = chr->chr_event;
457 /* Fix up the real driver with mux routines */
458 if (d->mux_cnt == 0) {
459 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
460 mux_chr_event, chr);
461 }
799f1f23
GH		 462 if (d->focus != -1) {
463 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
a7aec5da 464 }
799f1f23 465 d->focus = d->mux_cnt;
6f97dba0 466 d->mux_cnt++;
799f1f23 467 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
6f97dba0
AL		 468}
469
470static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
471{
472 CharDriverState *chr;
473 MuxDriver *d;
474
7267c094
AL		 475 chr = g_malloc0(sizeof(CharDriverState));
476 d = g_malloc0(sizeof(MuxDriver));
6f97dba0
AL		 477
478 chr->opaque = d;
479 d->drv = drv;
799f1f23 480 d->focus = -1;
6f97dba0
AL		 481 chr->chr_write = mux_chr_write;
482 chr->chr_update_read_handler = mux_chr_update_read_handler;
483 chr->chr_accept_input = mux_chr_accept_input;
7c32c4fe
HG		 484 /* Frontend guest-open / -close notification is not support with muxes */
485 chr->chr_guest_open = NULL;
486 chr->chr_guest_close = NULL;
73cdf3f2
AG		 487
488 /* Muxes are always open on creation */
489 qemu_chr_generic_open(chr);
490
6f97dba0
AL		 491 return chr;
492}
493
494
495#ifdef _WIN32
d247d25f 496int send_all(int fd, const void *buf, int len1)
6f97dba0
AL		 497{
498 int ret, len;
499
500 len = len1;
501 while (len > 0) {
502 ret = send(fd, buf, len, 0);
503 if (ret < 0) {
6f97dba0
AL		 504 errno = WSAGetLastError();
505 if (errno != WSAEWOULDBLOCK) {
506 return -1;
507 }
508 } else if (ret == 0) {
509 break;
510 } else {
511 buf += ret;
512 len -= ret;
513 }
514 }
515 return len1 - len;
516}
517
518#else
519
5fc9cfed 520int send_all(int fd, const void *_buf, int len1)
6f97dba0
AL		 521{
522 int ret, len;
5fc9cfed 523 const uint8_t *buf = _buf;
6f97dba0
AL		 524
525 len = len1;
526 while (len > 0) {
527 ret = write(fd, buf, len);
528 if (ret < 0) {
529 if (errno != EINTR && errno != EAGAIN)
530 return -1;
531 } else if (ret == 0) {
532 break;
533 } else {
534 buf += ret;
535 len -= ret;
536 }
537 }
538 return len1 - len;
539}
6f97dba0
AL		 540#endif /* !_WIN32 */
541
db418a0a
FC		 542#define STDIO_MAX_CLIENTS 1
543static int stdio_nb_clients;
544
6f97dba0
AL		 545#ifndef _WIN32
546
547typedef struct {
548 int fd_in, fd_out;
549 int max_size;
550} FDCharDriver;
551
6f97dba0
AL		 552
553static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
554{
555 FDCharDriver *s = chr->opaque;
556 return send_all(s->fd_out, buf, len);
557}
558
559static int fd_chr_read_poll(void *opaque)
560{
561 CharDriverState *chr = opaque;
562 FDCharDriver *s = chr->opaque;
563
909cda12 564 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 565 return s->max_size;
566}
567
568static void fd_chr_read(void *opaque)
569{
570 CharDriverState *chr = opaque;
571 FDCharDriver *s = chr->opaque;
572 int size, len;
9bd7854e 573 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 574
575 len = sizeof(buf);
576 if (len > s->max_size)
577 len = s->max_size;
578 if (len == 0)
579 return;
580 size = read(s->fd_in, buf, len);
581 if (size == 0) {
582 /* FD has been closed. Remove it from the active list. */
583 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
a425d23f 584 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 585 return;
586 }
587 if (size > 0) {
fa5efccb 588 qemu_chr_be_write(chr, buf, size);
6f97dba0
AL		 589 }
590}
591
592static void fd_chr_update_read_handler(CharDriverState *chr)
593{
594 FDCharDriver *s = chr->opaque;
595
596 if (s->fd_in >= 0) {
993fbfdb 597 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
6f97dba0
AL		 598 } else {
599 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
600 fd_chr_read, NULL, chr);
601 }
602 }
603}
604
605static void fd_chr_close(struct CharDriverState *chr)
606{
607 FDCharDriver *s = chr->opaque;
608
609 if (s->fd_in >= 0) {
993fbfdb 610 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
6f97dba0
AL		 611 } else {
612 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
613 }
614 }
615
7267c094 616 g_free(s);
a425d23f 617 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 618}
619
620/* open a character device to a unix fd */
621static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
622{
623 CharDriverState *chr;
624 FDCharDriver *s;
625
7267c094
AL		 626 chr = g_malloc0(sizeof(CharDriverState));
627 s = g_malloc0(sizeof(FDCharDriver));
6f97dba0
AL		 628 s->fd_in = fd_in;
629 s->fd_out = fd_out;
630 chr->opaque = s;
631 chr->chr_write = fd_chr_write;
632 chr->chr_update_read_handler = fd_chr_update_read_handler;
633 chr->chr_close = fd_chr_close;
634
127338e6 635 qemu_chr_generic_open(chr);
6f97dba0
AL		 636
637 return chr;
638}
639
1f51470d 640static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
6f97dba0
AL		 641{
642 int fd_out;
643
40ff6d7e 644 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
7d31544f 645 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
a89dd6c3 646 if (fd_out < 0) {
1f51470d 647 return NULL;
a89dd6c3 648 }
1f51470d 649 return qemu_chr_open_fd(-1, fd_out);
6f97dba0
AL		 650}
651
1f51470d 652static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
6f97dba0
AL		 653{
654 int fd_in, fd_out;
655 char filename_in[256], filename_out[256];
7d31544f
GH		 656 const char *filename = qemu_opt_get(opts, "path");
657
658 if (filename == NULL) {
659 fprintf(stderr, "chardev: pipe: no filename given\n");
1f51470d 660 return NULL;
7d31544f 661 }
6f97dba0
AL		 662
663 snprintf(filename_in, 256, "%s.in", filename);
664 snprintf(filename_out, 256, "%s.out", filename);
40ff6d7e
KW		 665 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
666 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
6f97dba0
AL		 667 if (fd_in < 0 || fd_out < 0) {
668 if (fd_in >= 0)
669 close(fd_in);
670 if (fd_out >= 0)
671 close(fd_out);
b181e047 672 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
a89dd6c3 673 if (fd_in < 0) {
1f51470d 674 return NULL;
a89dd6c3 675 }
6f97dba0 676 }
1f51470d 677 return qemu_chr_open_fd(fd_in, fd_out);
6f97dba0
AL		 678}
679
680
681/* for STDIO, we handle the case where several clients use it
682 (nographic mode) */
683
684#define TERM_FIFO_MAX_SIZE 1
685
686static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
687static int term_fifo_size;
688
689static int stdio_read_poll(void *opaque)
690{
691 CharDriverState *chr = opaque;
692
693 /* try to flush the queue if needed */
909cda12 694 if (term_fifo_size != 0 && qemu_chr_be_can_write(chr) > 0) {
fa5efccb 695 qemu_chr_be_write(chr, term_fifo, 1);
6f97dba0
AL		 696 term_fifo_size = 0;
697 }
698 /* see if we can absorb more chars */
699 if (term_fifo_size == 0)
700 return 1;
701 else
702 return 0;
703}
704
705static void stdio_read(void *opaque)
706{
707 int size;
708 uint8_t buf[1];
709 CharDriverState *chr = opaque;
710
711 size = read(0, buf, 1);
712 if (size == 0) {
713 /* stdin has been closed. Remove it from the active list. */
714 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
a425d23f 715 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 716 return;
717 }
718 if (size > 0) {
909cda12 719 if (qemu_chr_be_can_write(chr) > 0) {
fa5efccb 720 qemu_chr_be_write(chr, buf, 1);
6f97dba0
AL		 721 } else if (term_fifo_size == 0) {
722 term_fifo[term_fifo_size++] = buf[0];
723 }
724 }
725}
726
727/* init terminal so that we can grab keys */
728static struct termios oldtty;
729static int old_fd0_flags;
bb002513 730static bool stdio_allow_signal;
6f97dba0
AL		 731
732static void term_exit(void)
733{
734 tcsetattr (0, TCSANOW, &oldtty);
735 fcntl(0, F_SETFL, old_fd0_flags);
736}
737
bb002513 738static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
6f97dba0
AL		 739{
740 struct termios tty;
741
0369364b 742 tty = oldtty;
bb002513
PB		 743 if (!echo) {
744 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
6f97dba0 745 |INLCR|IGNCR|ICRNL|IXON);
bb002513
PB		 746 tty.c_oflag |= OPOST;
747 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
748 tty.c_cflag &= ~(CSIZE|PARENB);
749 tty.c_cflag |= CS8;
750 tty.c_cc[VMIN] = 1;
751 tty.c_cc[VTIME] = 0;
752 }
6f97dba0 753 /* if graphical mode, we allow Ctrl-C handling */
bb002513 754 if (!stdio_allow_signal)
6f97dba0 755 tty.c_lflag &= ~ISIG;
6f97dba0
AL		 756
757 tcsetattr (0, TCSANOW, &tty);
6f97dba0
AL		 758}
759
760static void qemu_chr_close_stdio(struct CharDriverState *chr)
761{
762 term_exit();
763 stdio_nb_clients--;
764 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
765 fd_chr_close(chr);
766}
767
1f51470d 768static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
6f97dba0
AL		 769{
770 CharDriverState *chr;
771
a89dd6c3 772 if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
1f51470d 773 return NULL;
a89dd6c3 774 }
ab51b1d5
MT		 775 if (is_daemonized()) {
776 error_report("cannot use stdio with -daemonize");
777 return NULL;
778 }
0369364b
PB		 779 if (stdio_nb_clients == 0) {
780 old_fd0_flags = fcntl(0, F_GETFL);
781 tcgetattr (0, &oldtty);
782 fcntl(0, F_SETFL, O_NONBLOCK);
783 atexit(term_exit);
784 }
785
6f97dba0
AL		 786 chr = qemu_chr_open_fd(0, 1);
787 chr->chr_close = qemu_chr_close_stdio;
bb002513 788 chr->chr_set_echo = qemu_chr_set_echo_stdio;
6f97dba0
AL		 789 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
790 stdio_nb_clients++;
bb002513
PB		 791 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
792 display_type != DT_NOGRAPHIC);
15f31519 793 qemu_chr_fe_set_echo(chr, false);
6f97dba0 794
1f51470d 795 return chr;
6f97dba0
AL		 796}
797
798#ifdef __sun__
799/* Once Solaris has openpty(), this is going to be removed. */
3f4cb3d3
BS		 800static int openpty(int *amaster, int *aslave, char *name,
801 struct termios *termp, struct winsize *winp)
6f97dba0
AL		 802{
803 const char *slave;
804 int mfd = -1, sfd = -1;
805
806 *amaster = *aslave = -1;
807
808 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
809 if (mfd < 0)
810 goto err;
811
812 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
813 goto err;
814
815 if ((slave = ptsname(mfd)) == NULL)
816 goto err;
817
818 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
819 goto err;
820
821 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
822 (termp != NULL && tcgetattr(sfd, termp) < 0))
823 goto err;
824
825 if (amaster)
826 *amaster = mfd;
827 if (aslave)
828 *aslave = sfd;
829 if (winp)
830 ioctl(sfd, TIOCSWINSZ, winp);
831
832 return 0;
833
834err:
835 if (sfd != -1)
836 close(sfd);
837 close(mfd);
838 return -1;
839}
840
3f4cb3d3 841static void cfmakeraw (struct termios *termios_p)
6f97dba0
AL		 842{
843 termios_p->c_iflag &=
844 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
845 termios_p->c_oflag &= ~OPOST;
846 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
847 termios_p->c_cflag &= ~(CSIZE|PARENB);
848 termios_p->c_cflag |= CS8;
849
850 termios_p->c_cc[VMIN] = 0;
851 termios_p->c_cc[VTIME] = 0;
852}
853#endif
854
855#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
a167ba50
AJ		 856 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
857 || defined(__GLIBC__)
6f97dba0 858
e551498e
GH		 859#define HAVE_CHARDEV_TTY 1
860
6f97dba0
AL		 861typedef struct {
862 int fd;
863 int connected;
864 int polling;
865 int read_bytes;
866 QEMUTimer *timer;
867} PtyCharDriver;
868
869static void pty_chr_update_read_handler(CharDriverState *chr);
870static void pty_chr_state(CharDriverState *chr, int connected);
871
872static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
873{
874 PtyCharDriver *s = chr->opaque;
875
876 if (!s->connected) {
877 /* guest sends data, check for (re-)connect */
878 pty_chr_update_read_handler(chr);
879 return 0;
880 }
881 return send_all(s->fd, buf, len);
882}
883
884static int pty_chr_read_poll(void *opaque)
885{
886 CharDriverState *chr = opaque;
887 PtyCharDriver *s = chr->opaque;
888
909cda12 889 s->read_bytes = qemu_chr_be_can_write(chr);
6f97dba0
AL		 890 return s->read_bytes;
891}
892
893static void pty_chr_read(void *opaque)
894{
895 CharDriverState *chr = opaque;
896 PtyCharDriver *s = chr->opaque;
897 int size, len;
9bd7854e 898 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 899
900 len = sizeof(buf);
901 if (len > s->read_bytes)
902 len = s->read_bytes;
903 if (len == 0)
904 return;
905 size = read(s->fd, buf, len);
906 if ((size == -1 && errno == EIO) ||
907 (size == 0)) {
908 pty_chr_state(chr, 0);
909 return;
910 }
911 if (size > 0) {
912 pty_chr_state(chr, 1);
fa5efccb 913 qemu_chr_be_write(chr, buf, size);
6f97dba0
AL		 914 }
915}
916
917static void pty_chr_update_read_handler(CharDriverState *chr)
918{
919 PtyCharDriver *s = chr->opaque;
920
921 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
922 pty_chr_read, NULL, chr);
923 s->polling = 1;
924 /*
925 * Short timeout here: just need wait long enougth that qemu makes
926 * it through the poll loop once. When reconnected we want a
927 * short timeout so we notice it almost instantly. Otherwise
928 * read() gives us -EIO instantly, making pty_chr_state() reset the
929 * timeout to the normal (much longer) poll interval before the
930 * timer triggers.
931 */
7bd427d8 932 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
6f97dba0
AL		 933}
934
935static void pty_chr_state(CharDriverState *chr, int connected)
936{
937 PtyCharDriver *s = chr->opaque;
938
939 if (!connected) {
940 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
941 s->connected = 0;
942 s->polling = 0;
943 /* (re-)connect poll interval for idle guests: once per second.
944 * We check more frequently in case the guests sends data to
945 * the virtual device linked to our pty. */
7bd427d8 946 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
6f97dba0
AL		 947 } else {
948 if (!s->connected)
127338e6 949 qemu_chr_generic_open(chr);
6f97dba0
AL		 950 s->connected = 1;
951 }
952}
953
954static void pty_chr_timer(void *opaque)
955{
956 struct CharDriverState *chr = opaque;
957 PtyCharDriver *s = chr->opaque;
958
959 if (s->connected)
960 return;
961 if (s->polling) {
962 /* If we arrive here without polling being cleared due
963 * read returning -EIO, then we are (re-)connected */
964 pty_chr_state(chr, 1);
965 return;
966 }
967
968 /* Next poll ... */
969 pty_chr_update_read_handler(chr);
970}
971
972static void pty_chr_close(struct CharDriverState *chr)
973{
974 PtyCharDriver *s = chr->opaque;
975
976 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
977 close(s->fd);
819f56b7
AL		 978 qemu_del_timer(s->timer);
979 qemu_free_timer(s->timer);
7267c094 980 g_free(s);
a425d23f 981 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 982}
983
1f51470d 984static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
6f97dba0
AL		 985{
986 CharDriverState *chr;
987 PtyCharDriver *s;
988 struct termios tty;
58650218 989 const char *label;
a4e26048 990 int master_fd, slave_fd, len;
c5e97233 991#if defined(__OpenBSD__) || defined(__DragonFly__)
6f97dba0
AL		 992 char pty_name[PATH_MAX];
993#define q_ptsname(x) pty_name
994#else
995 char *pty_name = NULL;
996#define q_ptsname(x) ptsname(x)
997#endif
998
a4e26048 999 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1f51470d 1000 return NULL;
6f97dba0
AL		 1001 }
1002
1003 /* Set raw attributes on the pty. */
c3b972c3 1004 tcgetattr(slave_fd, &tty);
6f97dba0
AL		 1005 cfmakeraw(&tty);
1006 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1007 close(slave_fd);
1008
a4e26048
MA		 1009 chr = g_malloc0(sizeof(CharDriverState));
1010
1011 len = strlen(q_ptsname(master_fd)) + 5;
7267c094 1012 chr->filename = g_malloc(len);
a4e26048
MA		 1013 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1014 qemu_opt_set(opts, "path", q_ptsname(master_fd));
58650218
LL		 1015
1016 label = qemu_opts_id(opts);
25bbf61e
GH		 1017 fprintf(stderr, "char device redirected to %s%s%s%s\n",
1018 q_ptsname(master_fd),
1019 label ? " (label " : "",
1020 label ? label : "",
1021 label ? ")" : "");
6f97dba0 1022
a4e26048 1023 s = g_malloc0(sizeof(PtyCharDriver));
6f97dba0
AL		 1024 chr->opaque = s;
1025 chr->chr_write = pty_chr_write;
1026 chr->chr_update_read_handler = pty_chr_update_read_handler;
1027 chr->chr_close = pty_chr_close;
1028
a4e26048 1029 s->fd = master_fd;
7bd427d8 1030 s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
6f97dba0 1031
1f51470d 1032 return chr;
6f97dba0
AL		 1033}
1034
1035static void tty_serial_init(int fd, int speed,
1036 int parity, int data_bits, int stop_bits)
1037{
1038 struct termios tty;
1039 speed_t spd;
1040
1041#if 0
1042 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1043 speed, parity, data_bits, stop_bits);
1044#endif
1045 tcgetattr (fd, &tty);
1046
45eea13b
SW		 1047#define check_speed(val) if (speed <= val) { spd = B##val; break; }
1048 speed = speed * 10 / 11;
1049 do {
1050 check_speed(50);
1051 check_speed(75);
1052 check_speed(110);
1053 check_speed(134);
1054 check_speed(150);
1055 check_speed(200);
1056 check_speed(300);
1057 check_speed(600);
1058 check_speed(1200);
1059 check_speed(1800);
1060 check_speed(2400);
1061 check_speed(4800);
1062 check_speed(9600);
1063 check_speed(19200);
1064 check_speed(38400);
1065 /* Non-Posix values follow. They may be unsupported on some systems. */
1066 check_speed(57600);
1067 check_speed(115200);
1068#ifdef B230400
1069 check_speed(230400);
1070#endif
1071#ifdef B460800
1072 check_speed(460800);
1073#endif
1074#ifdef B500000
1075 check_speed(500000);
1076#endif
1077#ifdef B576000
1078 check_speed(576000);
1079#endif
1080#ifdef B921600
1081 check_speed(921600);
1082#endif
1083#ifdef B1000000
1084 check_speed(1000000);
1085#endif
1086#ifdef B1152000
1087 check_speed(1152000);
1088#endif
1089#ifdef B1500000
1090 check_speed(1500000);
1091#endif
1092#ifdef B2000000
1093 check_speed(2000000);
1094#endif
1095#ifdef B2500000
1096 check_speed(2500000);
1097#endif
1098#ifdef B3000000
1099 check_speed(3000000);
1100#endif
1101#ifdef B3500000
1102 check_speed(3500000);
1103#endif
1104#ifdef B4000000
1105 check_speed(4000000);
1106#endif
6f97dba0 1107 spd = B115200;
45eea13b 1108 } while (0);
6f97dba0
AL		 1109
1110 cfsetispeed(&tty, spd);
1111 cfsetospeed(&tty, spd);
1112
1113 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1114 |INLCR|IGNCR|ICRNL|IXON);
1115 tty.c_oflag |= OPOST;
1116 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1117 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1118 switch(data_bits) {
1119 default:
1120 case 8:
1121 tty.c_cflag |= CS8;
1122 break;
1123 case 7:
1124 tty.c_cflag |= CS7;
1125 break;
1126 case 6:
1127 tty.c_cflag |= CS6;
1128 break;
1129 case 5:
1130 tty.c_cflag |= CS5;
1131 break;
1132 }
1133 switch(parity) {
1134 default:
1135 case 'N':
1136 break;
1137 case 'E':
1138 tty.c_cflag |= PARENB;
1139 break;
1140 case 'O':
1141 tty.c_cflag |= PARENB | PARODD;
1142 break;
1143 }
1144 if (stop_bits == 2)
1145 tty.c_cflag |= CSTOPB;
1146
1147 tcsetattr (fd, TCSANOW, &tty);
1148}
1149
1150static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1151{
1152 FDCharDriver *s = chr->opaque;
1153
1154 switch(cmd) {
1155 case CHR_IOCTL_SERIAL_SET_PARAMS:
1156 {
1157 QEMUSerialSetParams *ssp = arg;
1158 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1159 ssp->data_bits, ssp->stop_bits);
1160 }
1161 break;
1162 case CHR_IOCTL_SERIAL_SET_BREAK:
1163 {
1164 int enable = *(int *)arg;
1165 if (enable)
1166 tcsendbreak(s->fd_in, 1);
1167 }
1168 break;
1169 case CHR_IOCTL_SERIAL_GET_TIOCM:
1170 {
1171 int sarg = 0;
1172 int *targ = (int *)arg;
1173 ioctl(s->fd_in, TIOCMGET, &sarg);
1174 *targ = 0;
b4abdfa4 1175 if (sarg & TIOCM_CTS)
6f97dba0 1176 *targ |= CHR_TIOCM_CTS;
b4abdfa4 1177 if (sarg & TIOCM_CAR)
6f97dba0 1178 *targ |= CHR_TIOCM_CAR;
b4abdfa4 1179 if (sarg & TIOCM_DSR)
6f97dba0 1180 *targ |= CHR_TIOCM_DSR;
b4abdfa4 1181 if (sarg & TIOCM_RI)
6f97dba0 1182 *targ |= CHR_TIOCM_RI;
b4abdfa4 1183 if (sarg & TIOCM_DTR)
6f97dba0 1184 *targ |= CHR_TIOCM_DTR;
b4abdfa4 1185 if (sarg & TIOCM_RTS)
6f97dba0
AL		 1186 *targ |= CHR_TIOCM_RTS;
1187 }
1188 break;
1189 case CHR_IOCTL_SERIAL_SET_TIOCM:
1190 {
1191 int sarg = *(int *)arg;
1192 int targ = 0;
b4abdfa4
AJ		 1193 ioctl(s->fd_in, TIOCMGET, &targ);
1194 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1195 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1196 if (sarg & CHR_TIOCM_CTS)
1197 targ |= TIOCM_CTS;
1198 if (sarg & CHR_TIOCM_CAR)
1199 targ |= TIOCM_CAR;
1200 if (sarg & CHR_TIOCM_DSR)
1201 targ |= TIOCM_DSR;
1202 if (sarg & CHR_TIOCM_RI)
1203 targ |= TIOCM_RI;
1204 if (sarg & CHR_TIOCM_DTR)
6f97dba0 1205 targ |= TIOCM_DTR;
b4abdfa4 1206 if (sarg & CHR_TIOCM_RTS)
6f97dba0
AL		 1207 targ |= TIOCM_RTS;
1208 ioctl(s->fd_in, TIOCMSET, &targ);
1209 }
1210 break;
1211 default:
1212 return -ENOTSUP;
1213 }
1214 return 0;
1215}
1216
4266a134
DA		 1217static void qemu_chr_close_tty(CharDriverState *chr)
1218{
1219 FDCharDriver *s = chr->opaque;
1220 int fd = -1;
1221
1222 if (s) {
1223 fd = s->fd_in;
1224 }
1225
1226 fd_chr_close(chr);
1227
1228 if (fd >= 0) {
1229 close(fd);
1230 }
1231}
1232
d59044ef
GH		 1233static CharDriverState *qemu_chr_open_tty_fd(int fd)
1234{
1235 CharDriverState *chr;
1236
1237 tty_serial_init(fd, 115200, 'N', 8, 1);
1238 chr = qemu_chr_open_fd(fd, fd);
1239 chr->chr_ioctl = tty_serial_ioctl;
1240 chr->chr_close = qemu_chr_close_tty;
1241 return chr;
1242}
1243
1f51470d 1244static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
6f97dba0 1245{
48b76496 1246 const char *filename = qemu_opt_get(opts, "path");
6f97dba0
AL		 1247 int fd;
1248
b181e047 1249 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
afc535ac 1250 if (fd < 0) {
1f51470d 1251 return NULL;
afc535ac 1252 }
d59044ef 1253 return qemu_chr_open_tty_fd(fd);
6f97dba0 1254}
6f97dba0
AL		 1255#endif /* __linux__ || __sun__ */
1256
1257#if defined(__linux__)
e551498e
GH		 1258
1259#define HAVE_CHARDEV_PARPORT 1
1260
6f97dba0
AL		 1261typedef struct {
1262 int fd;
1263 int mode;
1264} ParallelCharDriver;
1265
1266static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1267{
1268 if (s->mode != mode) {
1269 int m = mode;
1270 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1271 return 0;
1272 s->mode = mode;
1273 }
1274 return 1;
1275}
1276
1277static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1278{
1279 ParallelCharDriver *drv = chr->opaque;
1280 int fd = drv->fd;
1281 uint8_t b;
1282
1283 switch(cmd) {
1284 case CHR_IOCTL_PP_READ_DATA:
1285 if (ioctl(fd, PPRDATA, &b) < 0)
1286 return -ENOTSUP;
1287 *(uint8_t *)arg = b;
1288 break;
1289 case CHR_IOCTL_PP_WRITE_DATA:
1290 b = *(uint8_t *)arg;
1291 if (ioctl(fd, PPWDATA, &b) < 0)
1292 return -ENOTSUP;
1293 break;
1294 case CHR_IOCTL_PP_READ_CONTROL:
1295 if (ioctl(fd, PPRCONTROL, &b) < 0)
1296 return -ENOTSUP;
1297 /* Linux gives only the lowest bits, and no way to know data
1298 direction! For better compatibility set the fixed upper
1299 bits. */
1300 *(uint8_t *)arg = b | 0xc0;
1301 break;
1302 case CHR_IOCTL_PP_WRITE_CONTROL:
1303 b = *(uint8_t *)arg;
1304 if (ioctl(fd, PPWCONTROL, &b) < 0)
1305 return -ENOTSUP;
1306 break;
1307 case CHR_IOCTL_PP_READ_STATUS:
1308 if (ioctl(fd, PPRSTATUS, &b) < 0)
1309 return -ENOTSUP;
1310 *(uint8_t *)arg = b;
1311 break;
1312 case CHR_IOCTL_PP_DATA_DIR:
1313 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1314 return -ENOTSUP;
1315 break;
1316 case CHR_IOCTL_PP_EPP_READ_ADDR:
1317 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1318 struct ParallelIOArg *parg = arg;
1319 int n = read(fd, parg->buffer, parg->count);
1320 if (n != parg->count) {
1321 return -EIO;
1322 }
1323 }
1324 break;
1325 case CHR_IOCTL_PP_EPP_READ:
1326 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1327 struct ParallelIOArg *parg = arg;
1328 int n = read(fd, parg->buffer, parg->count);
1329 if (n != parg->count) {
1330 return -EIO;
1331 }
1332 }
1333 break;
1334 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1335 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1336 struct ParallelIOArg *parg = arg;
1337 int n = write(fd, parg->buffer, parg->count);
1338 if (n != parg->count) {
1339 return -EIO;
1340 }
1341 }
1342 break;
1343 case CHR_IOCTL_PP_EPP_WRITE:
1344 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1345 struct ParallelIOArg *parg = arg;
1346 int n = write(fd, parg->buffer, parg->count);
1347 if (n != parg->count) {
1348 return -EIO;
1349 }
1350 }
1351 break;
1352 default:
1353 return -ENOTSUP;
1354 }
1355 return 0;
1356}
1357
1358static void pp_close(CharDriverState *chr)
1359{
1360 ParallelCharDriver *drv = chr->opaque;
1361 int fd = drv->fd;
1362
1363 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1364 ioctl(fd, PPRELEASE);
1365 close(fd);
7267c094 1366 g_free(drv);
a425d23f 1367 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1368}
1369
88a946d3 1370static CharDriverState *qemu_chr_open_pp_fd(int fd)
6f97dba0
AL		 1371{
1372 CharDriverState *chr;
1373 ParallelCharDriver *drv;
6f97dba0
AL		 1374
1375 if (ioctl(fd, PPCLAIM) < 0) {
1376 close(fd);
1f51470d 1377 return NULL;
6f97dba0
AL		 1378 }
1379
7267c094 1380 drv = g_malloc0(sizeof(ParallelCharDriver));
6f97dba0
AL		 1381 drv->fd = fd;
1382 drv->mode = IEEE1284_MODE_COMPAT;
1383
7267c094 1384 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0
AL		 1385 chr->chr_write = null_chr_write;
1386 chr->chr_ioctl = pp_ioctl;
1387 chr->chr_close = pp_close;
1388 chr->opaque = drv;
1389
127338e6 1390 qemu_chr_generic_open(chr);
6f97dba0 1391
1f51470d 1392 return chr;
6f97dba0
AL		 1393}
1394#endif /* __linux__ */
1395
a167ba50 1396#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
e551498e
GH		 1397
1398#define HAVE_CHARDEV_PARPORT 1
1399
6972f935
BS		 1400static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1401{
e0efb993 1402 int fd = (int)(intptr_t)chr->opaque;
6972f935
BS		 1403 uint8_t b;
1404
1405 switch(cmd) {
1406 case CHR_IOCTL_PP_READ_DATA:
1407 if (ioctl(fd, PPIGDATA, &b) < 0)
1408 return -ENOTSUP;
1409 *(uint8_t *)arg = b;
1410 break;
1411 case CHR_IOCTL_PP_WRITE_DATA:
1412 b = *(uint8_t *)arg;
1413 if (ioctl(fd, PPISDATA, &b) < 0)
1414 return -ENOTSUP;
1415 break;
1416 case CHR_IOCTL_PP_READ_CONTROL:
1417 if (ioctl(fd, PPIGCTRL, &b) < 0)
1418 return -ENOTSUP;
1419 *(uint8_t *)arg = b;
1420 break;
1421 case CHR_IOCTL_PP_WRITE_CONTROL:
1422 b = *(uint8_t *)arg;
1423 if (ioctl(fd, PPISCTRL, &b) < 0)
1424 return -ENOTSUP;
1425 break;
1426 case CHR_IOCTL_PP_READ_STATUS:
1427 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1428 return -ENOTSUP;
1429 *(uint8_t *)arg = b;
1430 break;
1431 default:
1432 return -ENOTSUP;
1433 }
1434 return 0;
1435}
1436
88a946d3 1437static CharDriverState *qemu_chr_open_pp_fd(int fd)
6972f935
BS		 1438{
1439 CharDriverState *chr;
6972f935 1440
7267c094 1441 chr = g_malloc0(sizeof(CharDriverState));
e0efb993 1442 chr->opaque = (void *)(intptr_t)fd;
6972f935
BS		 1443 chr->chr_write = null_chr_write;
1444 chr->chr_ioctl = pp_ioctl;
1f51470d 1445 return chr;
6972f935
BS		 1446}
1447#endif
1448
6f97dba0
AL		 1449#else /* _WIN32 */
1450
db418a0a
FC		 1451static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
1452
6f97dba0
AL		 1453typedef struct {
1454 int max_size;
1455 HANDLE hcom, hrecv, hsend;
1456 OVERLAPPED orecv, osend;
1457 BOOL fpipe;
1458 DWORD len;
1459} WinCharState;
1460
db418a0a
FC		 1461typedef struct {
1462 HANDLE hStdIn;
1463 HANDLE hInputReadyEvent;
1464 HANDLE hInputDoneEvent;
1465 HANDLE hInputThread;
1466 uint8_t win_stdio_buf;
1467} WinStdioCharState;
1468
6f97dba0
AL		 1469#define NSENDBUF 2048
1470#define NRECVBUF 2048
1471#define MAXCONNECT 1
1472#define NTIMEOUT 5000
1473
1474static int win_chr_poll(void *opaque);
1475static int win_chr_pipe_poll(void *opaque);
1476
1477static void win_chr_close(CharDriverState *chr)
1478{
1479 WinCharState *s = chr->opaque;
1480
1481 if (s->hsend) {
1482 CloseHandle(s->hsend);
1483 s->hsend = NULL;
1484 }
1485 if (s->hrecv) {
1486 CloseHandle(s->hrecv);
1487 s->hrecv = NULL;
1488 }
1489 if (s->hcom) {
1490 CloseHandle(s->hcom);
1491 s->hcom = NULL;
1492 }
1493 if (s->fpipe)
1494 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1495 else
1496 qemu_del_polling_cb(win_chr_poll, chr);
793cbfb5 1497
a425d23f 1498 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1499}
1500
1501static int win_chr_init(CharDriverState *chr, const char *filename)
1502{
1503 WinCharState *s = chr->opaque;
1504 COMMCONFIG comcfg;
1505 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1506 COMSTAT comstat;
1507 DWORD size;
1508 DWORD err;
1509
1510 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1511 if (!s->hsend) {
1512 fprintf(stderr, "Failed CreateEvent\n");
1513 goto fail;
1514 }
1515 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1516 if (!s->hrecv) {
1517 fprintf(stderr, "Failed CreateEvent\n");
1518 goto fail;
1519 }
1520
1521 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1522 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1523 if (s->hcom == INVALID_HANDLE_VALUE) {
1524 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1525 s->hcom = NULL;
1526 goto fail;
1527 }
1528
1529 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1530 fprintf(stderr, "Failed SetupComm\n");
1531 goto fail;
1532 }
1533
1534 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1535 size = sizeof(COMMCONFIG);
1536 GetDefaultCommConfig(filename, &comcfg, &size);
1537 comcfg.dcb.DCBlength = sizeof(DCB);
1538 CommConfigDialog(filename, NULL, &comcfg);
1539
1540 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1541 fprintf(stderr, "Failed SetCommState\n");
1542 goto fail;
1543 }
1544
1545 if (!SetCommMask(s->hcom, EV_ERR)) {
1546 fprintf(stderr, "Failed SetCommMask\n");
1547 goto fail;
1548 }
1549
1550 cto.ReadIntervalTimeout = MAXDWORD;
1551 if (!SetCommTimeouts(s->hcom, &cto)) {
1552 fprintf(stderr, "Failed SetCommTimeouts\n");
1553 goto fail;
1554 }
1555
1556 if (!ClearCommError(s->hcom, &err, &comstat)) {
1557 fprintf(stderr, "Failed ClearCommError\n");
1558 goto fail;
1559 }
1560 qemu_add_polling_cb(win_chr_poll, chr);
1561 return 0;
1562
1563 fail:
1564 win_chr_close(chr);
1565 return -1;
1566}
1567
1568static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1569{
1570 WinCharState *s = chr->opaque;
1571 DWORD len, ret, size, err;
1572
1573 len = len1;
1574 ZeroMemory(&s->osend, sizeof(s->osend));
1575 s->osend.hEvent = s->hsend;
1576 while (len > 0) {
1577 if (s->hsend)
1578 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1579 else
1580 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1581 if (!ret) {
1582 err = GetLastError();
1583 if (err == ERROR_IO_PENDING) {
1584 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1585 if (ret) {
1586 buf += size;
1587 len -= size;
1588 } else {
1589 break;
1590 }
1591 } else {
1592 break;
1593 }
1594 } else {
1595 buf += size;
1596 len -= size;
1597 }
1598 }
1599 return len1 - len;
1600}
1601
1602static int win_chr_read_poll(CharDriverState *chr)
1603{
1604 WinCharState *s = chr->opaque;
1605
909cda12 1606 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 1607 return s->max_size;
1608}
1609
1610static void win_chr_readfile(CharDriverState *chr)
1611{
1612 WinCharState *s = chr->opaque;
1613 int ret, err;
9bd7854e 1614 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 1615 DWORD size;
1616
1617 ZeroMemory(&s->orecv, sizeof(s->orecv));
1618 s->orecv.hEvent = s->hrecv;
1619 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1620 if (!ret) {
1621 err = GetLastError();
1622 if (err == ERROR_IO_PENDING) {
1623 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1624 }
1625 }
1626
1627 if (size > 0) {
fa5efccb 1628 qemu_chr_be_write(chr, buf, size);
6f97dba0
AL		 1629 }
1630}
1631
1632static void win_chr_read(CharDriverState *chr)
1633{
1634 WinCharState *s = chr->opaque;
1635
1636 if (s->len > s->max_size)
1637 s->len = s->max_size;
1638 if (s->len == 0)
1639 return;
1640
1641 win_chr_readfile(chr);
1642}
1643
1644static int win_chr_poll(void *opaque)
1645{
1646 CharDriverState *chr = opaque;
1647 WinCharState *s = chr->opaque;
1648 COMSTAT status;
1649 DWORD comerr;
1650
1651 ClearCommError(s->hcom, &comerr, &status);
1652 if (status.cbInQue > 0) {
1653 s->len = status.cbInQue;
1654 win_chr_read_poll(chr);
1655 win_chr_read(chr);
1656 return 1;
1657 }
1658 return 0;
1659}
1660
d59044ef 1661static CharDriverState *qemu_chr_open_win_path(const char *filename)
6f97dba0
AL		 1662{
1663 CharDriverState *chr;
1664 WinCharState *s;
1665
7267c094
AL		 1666 chr = g_malloc0(sizeof(CharDriverState));
1667 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1668 chr->opaque = s;
1669 chr->chr_write = win_chr_write;
1670 chr->chr_close = win_chr_close;
1671
1672 if (win_chr_init(chr, filename) < 0) {
2e02e18b
SW		 1673 g_free(s);
1674 g_free(chr);
1f51470d 1675 return NULL;
6f97dba0 1676 }
127338e6 1677 qemu_chr_generic_open(chr);
1f51470d 1678 return chr;
6f97dba0
AL		 1679}
1680
d59044ef
GH		 1681static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1682{
1683 return qemu_chr_open_win_path(qemu_opt_get(opts, "path"));
1684}
1685
6f97dba0
AL		 1686static int win_chr_pipe_poll(void *opaque)
1687{
1688 CharDriverState *chr = opaque;
1689 WinCharState *s = chr->opaque;
1690 DWORD size;
1691
1692 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1693 if (size > 0) {
1694 s->len = size;
1695 win_chr_read_poll(chr);
1696 win_chr_read(chr);
1697 return 1;
1698 }
1699 return 0;
1700}
1701
1702static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1703{
1704 WinCharState *s = chr->opaque;
1705 OVERLAPPED ov;
1706 int ret;
1707 DWORD size;
1708 char openname[256];
1709
1710 s->fpipe = TRUE;
1711
1712 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1713 if (!s->hsend) {
1714 fprintf(stderr, "Failed CreateEvent\n");
1715 goto fail;
1716 }
1717 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1718 if (!s->hrecv) {
1719 fprintf(stderr, "Failed CreateEvent\n");
1720 goto fail;
1721 }
1722
1723 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1724 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1725 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1726 PIPE_WAIT,
1727 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1728 if (s->hcom == INVALID_HANDLE_VALUE) {
1729 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1730 s->hcom = NULL;
1731 goto fail;
1732 }
1733
1734 ZeroMemory(&ov, sizeof(ov));
1735 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1736 ret = ConnectNamedPipe(s->hcom, &ov);
1737 if (ret) {
1738 fprintf(stderr, "Failed ConnectNamedPipe\n");
1739 goto fail;
1740 }
1741
1742 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1743 if (!ret) {
1744 fprintf(stderr, "Failed GetOverlappedResult\n");
1745 if (ov.hEvent) {
1746 CloseHandle(ov.hEvent);
1747 ov.hEvent = NULL;
1748 }
1749 goto fail;
1750 }
1751
1752 if (ov.hEvent) {
1753 CloseHandle(ov.hEvent);
1754 ov.hEvent = NULL;
1755 }
1756 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1757 return 0;
1758
1759 fail:
1760 win_chr_close(chr);
1761 return -1;
1762}
1763
1764
1f51470d 1765static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
6f97dba0 1766{
7d31544f 1767 const char *filename = qemu_opt_get(opts, "path");
6f97dba0
AL		 1768 CharDriverState *chr;
1769 WinCharState *s;
1770
7267c094
AL		 1771 chr = g_malloc0(sizeof(CharDriverState));
1772 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1773 chr->opaque = s;
1774 chr->chr_write = win_chr_write;
1775 chr->chr_close = win_chr_close;
1776
1777 if (win_chr_pipe_init(chr, filename) < 0) {
2e02e18b
SW		 1778 g_free(s);
1779 g_free(chr);
1f51470d 1780 return NULL;
6f97dba0 1781 }
127338e6 1782 qemu_chr_generic_open(chr);
1f51470d 1783 return chr;
6f97dba0
AL		 1784}
1785
1f51470d 1786static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
6f97dba0
AL		 1787{
1788 CharDriverState *chr;
1789 WinCharState *s;
1790
7267c094
AL		 1791 chr = g_malloc0(sizeof(CharDriverState));
1792 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1793 s->hcom = fd_out;
1794 chr->opaque = s;
1795 chr->chr_write = win_chr_write;
127338e6 1796 qemu_chr_generic_open(chr);
1f51470d 1797 return chr;
6f97dba0
AL		 1798}
1799
1f51470d 1800static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
6f97dba0 1801{
1f51470d 1802 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
6f97dba0
AL		 1803}
1804
1f51470d 1805static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
6f97dba0 1806{
7d31544f 1807 const char *file_out = qemu_opt_get(opts, "path");
6f97dba0
AL		 1808 HANDLE fd_out;
1809
1810 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1811 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
a89dd6c3 1812 if (fd_out == INVALID_HANDLE_VALUE) {
1f51470d 1813 return NULL;
a89dd6c3 1814 }
6f97dba0 1815
1f51470d 1816 return qemu_chr_open_win_file(fd_out);
6f97dba0 1817}
db418a0a
FC		 1818
1819static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1820{
1821 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1822 DWORD dwSize;
1823 int len1;
1824
1825 len1 = len;
1826
1827 while (len1 > 0) {
1828 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1829 break;
1830 }
1831 buf += dwSize;
1832 len1 -= dwSize;
1833 }
1834
1835 return len - len1;
1836}
1837
1838static void win_stdio_wait_func(void *opaque)
1839{
1840 CharDriverState *chr = opaque;
1841 WinStdioCharState *stdio = chr->opaque;
1842 INPUT_RECORD buf[4];
1843 int ret;
1844 DWORD dwSize;
1845 int i;
1846
1847 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1848 &dwSize);
1849
1850 if (!ret) {
1851 /* Avoid error storm */
1852 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1853 return;
1854 }
1855
1856 for (i = 0; i < dwSize; i++) {
1857 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1858
1859 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1860 int j;
1861 if (kev->uChar.AsciiChar != 0) {
1862 for (j = 0; j < kev->wRepeatCount; j++) {
1863 if (qemu_chr_be_can_write(chr)) {
1864 uint8_t c = kev->uChar.AsciiChar;
1865 qemu_chr_be_write(chr, &c, 1);
1866 }
1867 }
1868 }
1869 }
1870 }
1871}
1872
1873static DWORD WINAPI win_stdio_thread(LPVOID param)
1874{
1875 CharDriverState *chr = param;
1876 WinStdioCharState *stdio = chr->opaque;
1877 int ret;
1878 DWORD dwSize;
1879
1880 while (1) {
1881
1882 /* Wait for one byte */
1883 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
1884
1885 /* Exit in case of error, continue if nothing read */
1886 if (!ret) {
1887 break;
1888 }
1889 if (!dwSize) {
1890 continue;
1891 }
1892
1893 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1894 if (stdio->win_stdio_buf == '\r') {
1895 continue;
1896 }
1897
1898 /* Signal the main thread and wait until the byte was eaten */
1899 if (!SetEvent(stdio->hInputReadyEvent)) {
1900 break;
1901 }
1902 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
1903 != WAIT_OBJECT_0) {
1904 break;
1905 }
1906 }
1907
1908 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
1909 return 0;
1910}
1911
1912static void win_stdio_thread_wait_func(void *opaque)
1913{
1914 CharDriverState *chr = opaque;
1915 WinStdioCharState *stdio = chr->opaque;
1916
1917 if (qemu_chr_be_can_write(chr)) {
1918 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
1919 }
1920
1921 SetEvent(stdio->hInputDoneEvent);
1922}
1923
1924static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
1925{
1926 WinStdioCharState *stdio = chr->opaque;
1927 DWORD dwMode = 0;
1928
1929 GetConsoleMode(stdio->hStdIn, &dwMode);
1930
1931 if (echo) {
1932 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
1933 } else {
1934 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
1935 }
1936}
1937
1938static void win_stdio_close(CharDriverState *chr)
1939{
1940 WinStdioCharState *stdio = chr->opaque;
1941
1942 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
1943 CloseHandle(stdio->hInputReadyEvent);
1944 }
1945 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
1946 CloseHandle(stdio->hInputDoneEvent);
1947 }
1948 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
1949 TerminateThread(stdio->hInputThread, 0);
1950 }
1951
1952 g_free(chr->opaque);
1953 g_free(chr);
1954 stdio_nb_clients--;
1955}
1956
1f51470d 1957static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
db418a0a
FC		 1958{
1959 CharDriverState *chr;
1960 WinStdioCharState *stdio;
1961 DWORD dwMode;
1962 int is_console = 0;
1963
1964 if (stdio_nb_clients >= STDIO_MAX_CLIENTS
1965 || ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
1f51470d 1966 return NULL;
db418a0a
FC		 1967 }
1968
1969 chr = g_malloc0(sizeof(CharDriverState));
1970 stdio = g_malloc0(sizeof(WinStdioCharState));
1971
1972 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
1973 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
1974 fprintf(stderr, "cannot open stdio: invalid handle\n");
1975 exit(1);
1976 }
1977
1978 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
1979
1980 chr->opaque = stdio;
1981 chr->chr_write = win_stdio_write;
1982 chr->chr_close = win_stdio_close;
1983
1984 if (stdio_nb_clients == 0) {
1985 if (is_console) {
1986 if (qemu_add_wait_object(stdio->hStdIn,
1987 win_stdio_wait_func, chr)) {
1988 fprintf(stderr, "qemu_add_wait_object: failed\n");
1989 }
1990 } else {
1991 DWORD dwId;
1992
1993 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
1994 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
1995 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
1996 chr, 0, &dwId);
1997
1998 if (stdio->hInputThread == INVALID_HANDLE_VALUE
1999 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2000 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2001 fprintf(stderr, "cannot create stdio thread or event\n");
2002 exit(1);
2003 }
2004 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2005 win_stdio_thread_wait_func, chr)) {
2006 fprintf(stderr, "qemu_add_wait_object: failed\n");
2007 }
2008 }
2009 }
2010
2011 dwMode |= ENABLE_LINE_INPUT;
2012
2013 stdio_clients[stdio_nb_clients++] = chr;
2014 if (stdio_nb_clients == 1 && is_console) {
2015 /* set the terminal in raw mode */
2016 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2017 dwMode |= ENABLE_PROCESSED_INPUT;
2018 }
2019
2020 SetConsoleMode(stdio->hStdIn, dwMode);
2021
2022 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2023 qemu_chr_fe_set_echo(chr, false);
2024
1f51470d 2025 return chr;
db418a0a 2026}
6f97dba0
AL		 2027#endif /* !_WIN32 */
2028
2029/***********************************************************/
2030/* UDP Net console */
2031
2032typedef struct {
2033 int fd;
9bd7854e 2034 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2035 int bufcnt;
2036 int bufptr;
2037 int max_size;
2038} NetCharDriver;
2039
2040static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2041{
2042 NetCharDriver *s = chr->opaque;
2043
7e1b35b4 2044 return send(s->fd, (const void *)buf, len, 0);
6f97dba0
AL		 2045}
2046
2047static int udp_chr_read_poll(void *opaque)
2048{
2049 CharDriverState *chr = opaque;
2050 NetCharDriver *s = chr->opaque;
2051
909cda12 2052 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2053
2054 /* If there were any stray characters in the queue process them
2055 * first
2056 */
2057 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2058 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2059 s->bufptr++;
909cda12 2060 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2061 }
2062 return s->max_size;
2063}
2064
2065static void udp_chr_read(void *opaque)
2066{
2067 CharDriverState *chr = opaque;
2068 NetCharDriver *s = chr->opaque;
2069
2070 if (s->max_size == 0)
2071 return;
00aa0040 2072 s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
6f97dba0
AL		 2073 s->bufptr = s->bufcnt;
2074 if (s->bufcnt <= 0)
2075 return;
2076
2077 s->bufptr = 0;
2078 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2079 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2080 s->bufptr++;
909cda12 2081 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2082 }
2083}
2084
2085static void udp_chr_update_read_handler(CharDriverState *chr)
2086{
2087 NetCharDriver *s = chr->opaque;
2088
2089 if (s->fd >= 0) {
2090 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
2091 udp_chr_read, NULL, chr);
2092 }
2093}
2094
819f56b7
AL		 2095static void udp_chr_close(CharDriverState *chr)
2096{
2097 NetCharDriver *s = chr->opaque;
2098 if (s->fd >= 0) {
069c159e 2099 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
819f56b7
AL		 2100 closesocket(s->fd);
2101 }
7267c094 2102 g_free(s);
a425d23f 2103 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
819f56b7
AL		 2104}
2105
1f51470d 2106static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
6f97dba0
AL		 2107{
2108 CharDriverState *chr = NULL;
2109 NetCharDriver *s = NULL;
87d5f24f 2110 Error *local_err = NULL;
6f97dba0 2111 int fd = -1;
6f97dba0 2112
7267c094
AL		 2113 chr = g_malloc0(sizeof(CharDriverState));
2114 s = g_malloc0(sizeof(NetCharDriver));
6f97dba0 2115
87d5f24f 2116 fd = inet_dgram_opts(opts, &local_err);
6f97dba0 2117 if (fd < 0) {
6f97dba0
AL		 2118 goto return_err;
2119 }
2120
2121 s->fd = fd;
2122 s->bufcnt = 0;
2123 s->bufptr = 0;
2124 chr->opaque = s;
2125 chr->chr_write = udp_chr_write;
2126 chr->chr_update_read_handler = udp_chr_update_read_handler;
819f56b7 2127 chr->chr_close = udp_chr_close;
1f51470d 2128 return chr;
6f97dba0
AL		 2129
2130return_err:
87d5f24f
PB		 2131 if (local_err) {
2132 qerror_report_err(local_err);
2133 error_free(local_err);
2134 }
7267c094
AL		 2135 g_free(chr);
2136 g_free(s);
6e1db57b 2137 if (fd >= 0) {
6f97dba0 2138 closesocket(fd);
6e1db57b 2139 }
1f51470d 2140 return NULL;
6f97dba0
AL		 2141}
2142
2143/***********************************************************/
2144/* TCP Net console */
2145
2146typedef struct {
2147 int fd, listen_fd;
2148 int connected;
2149 int max_size;
2150 int do_telnetopt;
2151 int do_nodelay;
2152 int is_unix;
7d174059 2153 int msgfd;
6f97dba0
AL		 2154} TCPCharDriver;
2155
2156static void tcp_chr_accept(void *opaque);
2157
2158static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2159{
2160 TCPCharDriver *s = chr->opaque;
2161 if (s->connected) {
2162 return send_all(s->fd, buf, len);
455aa1e0 2163 } else {
6db0fdce 2164 /* XXX: indicate an error ? */
455aa1e0 2165 return len;
6f97dba0
AL		 2166 }
2167}
2168
2169static int tcp_chr_read_poll(void *opaque)
2170{
2171 CharDriverState *chr = opaque;
2172 TCPCharDriver *s = chr->opaque;
2173 if (!s->connected)
2174 return 0;
909cda12 2175 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2176 return s->max_size;
2177}
2178
2179#define IAC 255
2180#define IAC_BREAK 243
2181static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2182 TCPCharDriver *s,
2183 uint8_t *buf, int *size)
2184{
2185 /* Handle any telnet client's basic IAC options to satisfy char by
2186 * char mode with no echo. All IAC options will be removed from
2187 * the buf and the do_telnetopt variable will be used to track the
2188 * state of the width of the IAC information.
2189 *
2190 * IAC commands come in sets of 3 bytes with the exception of the
2191 * "IAC BREAK" command and the double IAC.
2192 */
2193
2194 int i;
2195 int j = 0;
2196
2197 for (i = 0; i < *size; i++) {
2198 if (s->do_telnetopt > 1) {
2199 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2200 /* Double IAC means send an IAC */
2201 if (j != i)
2202 buf[j] = buf[i];
2203 j++;
2204 s->do_telnetopt = 1;
2205 } else {
2206 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2207 /* Handle IAC break commands by sending a serial break */
a425d23f 2208 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 2209 s->do_telnetopt++;
2210 }
2211 s->do_telnetopt++;
2212 }
2213 if (s->do_telnetopt >= 4) {
2214 s->do_telnetopt = 1;
2215 }
2216 } else {
2217 if ((unsigned char)buf[i] == IAC) {
2218 s->do_telnetopt = 2;
2219 } else {
2220 if (j != i)
2221 buf[j] = buf[i];
2222 j++;
2223 }
2224 }
2225 }
2226 *size = j;
2227}
2228
7d174059
MM		 2229static int tcp_get_msgfd(CharDriverState *chr)
2230{
2231 TCPCharDriver *s = chr->opaque;
e53f27b9
PB		 2232 int fd = s->msgfd;
2233 s->msgfd = -1;
2234 return fd;
7d174059
MM		 2235}
2236
73bcc2ac 2237#ifndef _WIN32
7d174059
MM		 2238static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2239{
2240 TCPCharDriver *s = chr->opaque;
2241 struct cmsghdr *cmsg;
2242
2243 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2244 int fd;
2245
2246 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2247 cmsg->cmsg_level != SOL_SOCKET ||
2248 cmsg->cmsg_type != SCM_RIGHTS)
2249 continue;
2250
2251 fd = *((int *)CMSG_DATA(cmsg));
2252 if (fd < 0)
2253 continue;
2254
06138651
CB		 2255#ifndef MSG_CMSG_CLOEXEC
2256 qemu_set_cloexec(fd);
2257#endif
7d174059
MM		 2258 if (s->msgfd != -1)
2259 close(s->msgfd);
2260 s->msgfd = fd;
2261 }
2262}
2263
9977c894
MM		 2264static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2265{
2266 TCPCharDriver *s = chr->opaque;
7cba04f6 2267 struct msghdr msg = { NULL, };
9977c894 2268 struct iovec iov[1];
7d174059
MM		 2269 union {
2270 struct cmsghdr cmsg;
2271 char control[CMSG_SPACE(sizeof(int))];
2272 } msg_control;
06138651 2273 int flags = 0;
7d174059 2274 ssize_t ret;
9977c894
MM		 2275
2276 iov[0].iov_base = buf;
2277 iov[0].iov_len = len;
2278
2279 msg.msg_iov = iov;
2280 msg.msg_iovlen = 1;
7d174059
MM		 2281 msg.msg_control = &msg_control;
2282 msg.msg_controllen = sizeof(msg_control);
2283
06138651
CB		 2284#ifdef MSG_CMSG_CLOEXEC
2285 flags |= MSG_CMSG_CLOEXEC;
2286#endif
2287 ret = recvmsg(s->fd, &msg, flags);
2288 if (ret > 0 && s->is_unix) {
7d174059 2289 unix_process_msgfd(chr, &msg);
06138651 2290 }
9977c894 2291
7d174059 2292 return ret;
9977c894
MM		 2293}
2294#else
2295static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2296{
2297 TCPCharDriver *s = chr->opaque;
00aa0040 2298 return qemu_recv(s->fd, buf, len, 0);
9977c894
MM		 2299}
2300#endif
2301
6f97dba0
AL		 2302static void tcp_chr_read(void *opaque)
2303{
2304 CharDriverState *chr = opaque;
2305 TCPCharDriver *s = chr->opaque;
9bd7854e 2306 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2307 int len, size;
2308
2309 if (!s->connected || s->max_size <= 0)
2310 return;
2311 len = sizeof(buf);
2312 if (len > s->max_size)
2313 len = s->max_size;
9977c894 2314 size = tcp_chr_recv(chr, (void *)buf, len);
6f97dba0
AL		 2315 if (size == 0) {
2316 /* connection closed */
2317 s->connected = 0;
2318 if (s->listen_fd >= 0) {
069c159e 2319 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
6f97dba0 2320 }
069c159e 2321 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
6f97dba0
AL		 2322 closesocket(s->fd);
2323 s->fd = -1;
a425d23f 2324 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2325 } else if (size > 0) {
2326 if (s->do_telnetopt)
2327 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2328 if (size > 0)
fa5efccb 2329 qemu_chr_be_write(chr, buf, size);
6f97dba0
AL		 2330 }
2331}
2332
68c18d1c
BS		 2333#ifndef _WIN32
2334CharDriverState *qemu_chr_open_eventfd(int eventfd)
2335{
6cbf4c8c 2336 return qemu_chr_open_fd(eventfd, eventfd);
6cbf4c8c 2337}
68c18d1c 2338#endif
6cbf4c8c 2339
6f97dba0
AL		 2340static void tcp_chr_connect(void *opaque)
2341{
2342 CharDriverState *chr = opaque;
2343 TCPCharDriver *s = chr->opaque;
2344
2345 s->connected = 1;
bbdd2ad0
DG		 2346 if (s->fd >= 0) {
2347 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2348 tcp_chr_read, NULL, chr);
2349 }
127338e6 2350 qemu_chr_generic_open(chr);
6f97dba0
AL		 2351}
2352
2353#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2354static void tcp_chr_telnet_init(int fd)
2355{
2356 char buf[3];
2357 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2358 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2359 send(fd, (char *)buf, 3, 0);
2360 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2361 send(fd, (char *)buf, 3, 0);
2362 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2363 send(fd, (char *)buf, 3, 0);
2364 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2365 send(fd, (char *)buf, 3, 0);
2366}
2367
13661089
DB		 2368static int tcp_chr_add_client(CharDriverState *chr, int fd)
2369{
2370 TCPCharDriver *s = chr->opaque;
2371 if (s->fd != -1)
2372 return -1;
2373
2374 socket_set_nonblock(fd);
2375 if (s->do_nodelay)
2376 socket_set_nodelay(fd);
2377 s->fd = fd;
069c159e 2378 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
13661089
DB		 2379 tcp_chr_connect(chr);
2380
2381 return 0;
2382}
2383
6f97dba0
AL		 2384static void tcp_chr_accept(void *opaque)
2385{
2386 CharDriverState *chr = opaque;
2387 TCPCharDriver *s = chr->opaque;
2388 struct sockaddr_in saddr;
2389#ifndef _WIN32
2390 struct sockaddr_un uaddr;
2391#endif
2392 struct sockaddr *addr;
2393 socklen_t len;
2394 int fd;
2395
2396 for(;;) {
2397#ifndef _WIN32
2398 if (s->is_unix) {
2399 len = sizeof(uaddr);
2400 addr = (struct sockaddr *)&uaddr;
2401 } else
2402#endif
2403 {
2404 len = sizeof(saddr);
2405 addr = (struct sockaddr *)&saddr;
2406 }
40ff6d7e 2407 fd = qemu_accept(s->listen_fd, addr, &len);
6f97dba0
AL		 2408 if (fd < 0 && errno != EINTR) {
2409 return;
2410 } else if (fd >= 0) {
2411 if (s->do_telnetopt)
2412 tcp_chr_telnet_init(fd);
2413 break;
2414 }
2415 }
13661089
DB		 2416 if (tcp_chr_add_client(chr, fd) < 0)
2417 close(fd);
6f97dba0
AL		 2418}
2419
2420static void tcp_chr_close(CharDriverState *chr)
2421{
2422 TCPCharDriver *s = chr->opaque;
819f56b7 2423 if (s->fd >= 0) {
069c159e 2424 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
6f97dba0 2425 closesocket(s->fd);
819f56b7
AL		 2426 }
2427 if (s->listen_fd >= 0) {
069c159e 2428 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
6f97dba0 2429 closesocket(s->listen_fd);
819f56b7 2430 }
7267c094 2431 g_free(s);
a425d23f 2432 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2433}
2434
f6bd5d6e
GH		 2435static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2436 bool is_listen, bool is_telnet,
2437 bool is_waitconnect,
2438 Error **errp)
6f97dba0
AL		 2439{
2440 CharDriverState *chr = NULL;
2441 TCPCharDriver *s = NULL;
f6bd5d6e
GH		 2442 char host[NI_MAXHOST], serv[NI_MAXSERV];
2443 const char *left = "", *right = "";
2444 struct sockaddr_storage ss;
2445 socklen_t ss_len = sizeof(ss);
2446
2447 memset(&ss, 0, ss_len);
2448 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2449 error_setg(errp, "getsockname: %s", strerror(errno));
2450 return NULL;
2451 }
2452
2453 chr = g_malloc0(sizeof(CharDriverState));
2454 s = g_malloc0(sizeof(TCPCharDriver));
2455
2456 s->connected = 0;
2457 s->fd = -1;
2458 s->listen_fd = -1;
2459 s->msgfd = -1;
2460
2461 chr->filename = g_malloc(256);
2462 switch (ss.ss_family) {
2463#ifndef _WIN32
2464 case AF_UNIX:
2465 s->is_unix = 1;
2466 snprintf(chr->filename, 256, "unix:%s%s",
2467 ((struct sockaddr_un *)(&ss))->sun_path,
2468 is_listen ? ",server" : "");
2469 break;
2470#endif
2471 case AF_INET6:
2472 left = "[";
2473 right = "]";
2474 /* fall through */
2475 case AF_INET:
2476 s->do_nodelay = do_nodelay;
2477 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2478 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2479 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2480 is_telnet ? "telnet" : "tcp",
2481 left, host, right, serv,
2482 is_listen ? ",server" : "");
2483 break;
2484 }
2485
2486 chr->opaque = s;
2487 chr->chr_write = tcp_chr_write;
2488 chr->chr_close = tcp_chr_close;
2489 chr->get_msgfd = tcp_get_msgfd;
2490 chr->chr_add_client = tcp_chr_add_client;
2491
2492 if (is_listen) {
2493 s->listen_fd = fd;
2494 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2495 if (is_telnet) {
2496 s->do_telnetopt = 1;
2497 }
2498 } else {
2499 s->connected = 1;
2500 s->fd = fd;
2501 socket_set_nodelay(fd);
2502 tcp_chr_connect(chr);
2503 }
2504
2505 if (is_listen && is_waitconnect) {
2506 printf("QEMU waiting for connection on: %s\n",
2507 chr->filename);
2508 tcp_chr_accept(chr);
2509 socket_set_nonblock(s->listen_fd);
2510 }
2511 return chr;
2512}
2513
2514static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2515{
2516 CharDriverState *chr = NULL;
87d5f24f 2517 Error *local_err = NULL;
aeb2c47a
GH		 2518 int fd = -1;
2519 int is_listen;
2520 int is_waitconnect;
2521 int do_nodelay;
2522 int is_unix;
2523 int is_telnet;
2524
2525 is_listen = qemu_opt_get_bool(opts, "server", 0);
2526 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2527 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2528 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2529 is_unix = qemu_opt_get(opts, "path") != NULL;
6f97dba0
AL		 2530 if (!is_listen)
2531 is_waitconnect = 0;
2532
f07b6003
AL		 2533 if (is_unix) {
2534 if (is_listen) {
87d5f24f 2535 fd = unix_listen_opts(opts, &local_err);
f07b6003 2536 } else {
87d5f24f 2537 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2538 }
2539 } else {
2540 if (is_listen) {
87d5f24f 2541 fd = inet_listen_opts(opts, 0, &local_err);
f07b6003 2542 } else {
87d5f24f 2543 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2544 }
2545 }
a89dd6c3 2546 if (fd < 0) {
6f97dba0 2547 goto fail;
a89dd6c3 2548 }
6f97dba0
AL		 2549
2550 if (!is_waitconnect)
2551 socket_set_nonblock(fd);
2552
f6bd5d6e
GH		 2553 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2554 is_waitconnect, &local_err);
2555 if (error_is_set(&local_err)) {
2556 goto fail;
6f97dba0 2557 }
1f51470d 2558 return chr;
aeb2c47a 2559
f6bd5d6e 2560
6f97dba0 2561 fail:
87d5f24f
PB		 2562 if (local_err) {
2563 qerror_report_err(local_err);
2564 error_free(local_err);
2565 }
2566 if (fd >= 0) {
6f97dba0 2567 closesocket(fd);
87d5f24f 2568 }
f6bd5d6e
GH		 2569 if (chr) {
2570 g_free(chr->opaque);
2571 g_free(chr);
2572 }
1f51470d 2573 return NULL;
6f97dba0
AL		 2574}
2575
999bd67c
LC		 2576/***********************************************************/
2577/* Memory chardev */
2578typedef struct {
2579 size_t outbuf_size;
2580 size_t outbuf_capacity;
2581 uint8_t *outbuf;
2582} MemoryDriver;
2583
2584static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2585{
2586 MemoryDriver *d = chr->opaque;
2587
2588 /* TODO: the QString implementation has the same code, we should
2589 * introduce a generic way to do this in cutils.c */
2590 if (d->outbuf_capacity < d->outbuf_size + len) {
2591 /* grow outbuf */
2592 d->outbuf_capacity += len;
2593 d->outbuf_capacity *= 2;
7267c094 2594 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
999bd67c
LC		 2595 }
2596
2597 memcpy(d->outbuf + d->outbuf_size, buf, len);
2598 d->outbuf_size += len;
2599
2600 return len;
2601}
2602
2603void qemu_chr_init_mem(CharDriverState *chr)
2604{
2605 MemoryDriver *d;
2606
7267c094 2607 d = g_malloc(sizeof(*d));
999bd67c
LC		 2608 d->outbuf_size = 0;
2609 d->outbuf_capacity = 4096;
7267c094 2610 d->outbuf = g_malloc0(d->outbuf_capacity);
999bd67c
LC		 2611
2612 memset(chr, 0, sizeof(*chr));
2613 chr->opaque = d;
2614 chr->chr_write = mem_chr_write;
2615}
2616
2617QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2618{
2619 MemoryDriver *d = chr->opaque;
2620 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2621}
2622
70f24fb6 2623/* NOTE: this driver can not be closed with qemu_chr_delete()! */
999bd67c
LC		 2624void qemu_chr_close_mem(CharDriverState *chr)
2625{
2626 MemoryDriver *d = chr->opaque;
2627
7267c094
AL		 2628 g_free(d->outbuf);
2629 g_free(chr->opaque);
999bd67c
LC		 2630 chr->opaque = NULL;
2631 chr->chr_write = NULL;
2632}
2633
2634size_t qemu_chr_mem_osize(const CharDriverState *chr)
2635{
2636 const MemoryDriver *d = chr->opaque;
2637 return d->outbuf_size;
2638}
2639
51767e7c 2640/*********************************************************/
3949e594 2641/* Ring buffer chardev */
51767e7c
LL		 2642
2643typedef struct {
2644 size_t size;
2645 size_t prod;
2646 size_t cons;
2647 uint8_t *cbuf;
3949e594 2648} RingBufCharDriver;
51767e7c 2649
3949e594 2650static size_t ringbuf_count(const CharDriverState *chr)
51767e7c 2651{
3949e594 2652 const RingBufCharDriver *d = chr->opaque;
51767e7c 2653
5c230105 2654 return d->prod - d->cons;
51767e7c
LL		 2655}
2656
3949e594 2657static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
51767e7c 2658{
3949e594 2659 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2660 int i;
2661
2662 if (!buf || (len < 0)) {
2663 return -1;
2664 }
2665
2666 for (i = 0; i < len; i++ ) {
5c230105
MA		 2667 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2668 if (d->prod - d->cons > d->size) {
51767e7c
LL		 2669 d->cons = d->prod - d->size;
2670 }
2671 }
2672
2673 return 0;
2674}
2675
3949e594 2676static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
51767e7c 2677{
3949e594 2678 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2679 int i;
2680
5c230105
MA		 2681 for (i = 0; i < len && d->cons != d->prod; i++) {
2682 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
51767e7c
LL		 2683 }
2684
2685 return i;
2686}
2687
3949e594 2688static void ringbuf_chr_close(struct CharDriverState *chr)
51767e7c 2689{
3949e594 2690 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2691
2692 g_free(d->cbuf);
2693 g_free(d);
2694 chr->opaque = NULL;
2695}
2696
3949e594 2697static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
51767e7c
LL		 2698{
2699 CharDriverState *chr;
3949e594 2700 RingBufCharDriver *d;
51767e7c
LL		 2701
2702 chr = g_malloc0(sizeof(CharDriverState));
2703 d = g_malloc(sizeof(*d));
2704
de1cc36e 2705 d->size = qemu_opt_get_size(opts, "size", 0);
51767e7c 2706 if (d->size == 0) {
de1cc36e 2707 d->size = 65536;
51767e7c
LL		 2708 }
2709
2710 /* The size must be power of 2 */
2711 if (d->size & (d->size - 1)) {
3949e594 2712 error_report("size of ringbuf device must be power of two");
51767e7c
LL		 2713 goto fail;
2714 }
2715
2716 d->prod = 0;
2717 d->cons = 0;
2718 d->cbuf = g_malloc0(d->size);
2719
2720 chr->opaque = d;
3949e594
MA		 2721 chr->chr_write = ringbuf_chr_write;
2722 chr->chr_close = ringbuf_chr_close;
51767e7c
LL		 2723
2724 return chr;
2725
2726fail:
2727 g_free(d);
2728 g_free(chr);
2729 return NULL;
2730}
2731
3949e594 2732static bool chr_is_ringbuf(const CharDriverState *chr)
1f590cf9 2733{
3949e594 2734 return chr->chr_write == ringbuf_chr_write;
1f590cf9
LL		 2735}
2736
3949e594 2737void qmp_ringbuf_write(const char *device, const char *data,
82e59a67 2738 bool has_format, enum DataFormat format,
1f590cf9
LL		 2739 Error **errp)
2740{
2741 CharDriverState *chr;
c4f331b6 2742 const uint8_t *write_data;
1f590cf9 2743 int ret;
c4f331b6 2744 size_t write_count;
1f590cf9
LL		 2745
2746 chr = qemu_chr_find(device);
2747 if (!chr) {
1a69278e 2748 error_setg(errp, "Device '%s' not found", device);
1f590cf9
LL		 2749 return;
2750 }
2751
3949e594
MA		 2752 if (!chr_is_ringbuf(chr)) {
2753 error_setg(errp,"%s is not a ringbuf device", device);
1f590cf9
LL		 2754 return;
2755 }
2756
1f590cf9
LL		 2757 if (has_format && (format == DATA_FORMAT_BASE64)) {
2758 write_data = g_base64_decode(data, &write_count);
2759 } else {
2760 write_data = (uint8_t *)data;
82e59a67 2761 write_count = strlen(data);
1f590cf9
LL		 2762 }
2763
3949e594 2764 ret = ringbuf_chr_write(chr, write_data, write_count);
1f590cf9 2765
13289fb5
MA		 2766 if (write_data != (uint8_t *)data) {
2767 g_free((void *)write_data);
2768 }
2769
1f590cf9
LL		 2770 if (ret < 0) {
2771 error_setg(errp, "Failed to write to device %s", device);
2772 return;
2773 }
2774}
2775
3949e594 2776char *qmp_ringbuf_read(const char *device, int64_t size,
3ab651fc
MA		 2777 bool has_format, enum DataFormat format,
2778 Error **errp)
49b6d722
LL		 2779{
2780 CharDriverState *chr;
c4f331b6 2781 uint8_t *read_data;
49b6d722 2782 size_t count;
3ab651fc 2783 char *data;
49b6d722
LL		 2784
2785 chr = qemu_chr_find(device);
2786 if (!chr) {
1a69278e 2787 error_setg(errp, "Device '%s' not found", device);
49b6d722
LL		 2788 return NULL;
2789 }
2790
3949e594
MA		 2791 if (!chr_is_ringbuf(chr)) {
2792 error_setg(errp,"%s is not a ringbuf device", device);
49b6d722
LL		 2793 return NULL;
2794 }
2795
2796 if (size <= 0) {
2797 error_setg(errp, "size must be greater than zero");
2798 return NULL;
2799 }
2800
3949e594 2801 count = ringbuf_count(chr);
49b6d722 2802 size = size > count ? count : size;
44f3bcd2 2803 read_data = g_malloc(size + 1);
49b6d722 2804
3949e594 2805 ringbuf_chr_read(chr, read_data, size);
49b6d722
LL		 2806
2807 if (has_format && (format == DATA_FORMAT_BASE64)) {
3ab651fc 2808 data = g_base64_encode(read_data, size);
13289fb5 2809 g_free(read_data);
49b6d722 2810 } else {
3949e594
MA		 2811 /*
2812 * FIXME should read only complete, valid UTF-8 characters up
2813 * to @size bytes. Invalid sequences should be replaced by a
2814 * suitable replacement character. Except when (and only
2815 * when) ring buffer lost characters since last read, initial
2816 * continuation characters should be dropped.
2817 */
44f3bcd2 2818 read_data[size] = 0;
3ab651fc 2819 data = (char *)read_data;
49b6d722
LL		 2820 }
2821
3ab651fc 2822 return data;
49b6d722
LL		 2823}
2824
33521634 2825QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
191bc01b 2826{
6ea314d9 2827 char host[65], port[33], width[8], height[8];
aeb2c47a 2828 int pos;
7d31544f 2829 const char *p;
191bc01b 2830 QemuOpts *opts;
8be7e7e4 2831 Error *local_err = NULL;
191bc01b 2832
8be7e7e4
LC		 2833 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2834 if (error_is_set(&local_err)) {
2835 qerror_report_err(local_err);
2836 error_free(local_err);
191bc01b 2837 return NULL;
8be7e7e4 2838 }
191bc01b 2839
7591c5c1
GH		 2840 if (strstart(filename, "mon:", &p)) {
2841 filename = p;
2842 qemu_opt_set(opts, "mux", "on");
2843 }
2844
f0457e8d
GH		 2845 if (strcmp(filename, "null") == 0 ||
2846 strcmp(filename, "pty") == 0 ||
2847 strcmp(filename, "msmouse") == 0 ||
dc1c21e6 2848 strcmp(filename, "braille") == 0 ||
f0457e8d 2849 strcmp(filename, "stdio") == 0) {
4490dadf 2850 qemu_opt_set(opts, "backend", filename);
191bc01b
GH		 2851 return opts;
2852 }
6ea314d9
GH		 2853 if (strstart(filename, "vc", &p)) {
2854 qemu_opt_set(opts, "backend", "vc");
2855 if (*p == ':') {
2856 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2857 /* pixels */
2858 qemu_opt_set(opts, "width", width);
2859 qemu_opt_set(opts, "height", height);
2860 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2861 /* chars */
2862 qemu_opt_set(opts, "cols", width);
2863 qemu_opt_set(opts, "rows", height);
2864 } else {
2865 goto fail;
2866 }
2867 }
2868 return opts;
2869 }
d6c983cd
GH		 2870 if (strcmp(filename, "con:") == 0) {
2871 qemu_opt_set(opts, "backend", "console");
2872 return opts;
2873 }
48b76496
GH		 2874 if (strstart(filename, "COM", NULL)) {
2875 qemu_opt_set(opts, "backend", "serial");
2876 qemu_opt_set(opts, "path", filename);
2877 return opts;
2878 }
7d31544f
GH		 2879 if (strstart(filename, "file:", &p)) {
2880 qemu_opt_set(opts, "backend", "file");
2881 qemu_opt_set(opts, "path", p);
2882 return opts;
2883 }
2884 if (strstart(filename, "pipe:", &p)) {
2885 qemu_opt_set(opts, "backend", "pipe");
2886 qemu_opt_set(opts, "path", p);
2887 return opts;
2888 }
aeb2c47a
GH		 2889 if (strstart(filename, "tcp:", &p) ||
2890 strstart(filename, "telnet:", &p)) {
2891 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2892 host[0] = 0;
2893 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2894 goto fail;
2895 }
2896 qemu_opt_set(opts, "backend", "socket");
2897 qemu_opt_set(opts, "host", host);
2898 qemu_opt_set(opts, "port", port);
2899 if (p[pos] == ',') {
2900 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2901 goto fail;
2902 }
2903 if (strstart(filename, "telnet:", &p))
2904 qemu_opt_set(opts, "telnet", "on");
2905 return opts;
2906 }
7e1b35b4
GH		 2907 if (strstart(filename, "udp:", &p)) {
2908 qemu_opt_set(opts, "backend", "udp");
2909 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2910 host[0] = 0;
39324ca4 2911 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
7e1b35b4
GH		 2912 goto fail;
2913 }
2914 }
2915 qemu_opt_set(opts, "host", host);
2916 qemu_opt_set(opts, "port", port);
2917 if (p[pos] == '@') {
2918 p += pos + 1;
2919 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2920 host[0] = 0;
2921 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
7e1b35b4
GH		 2922 goto fail;
2923 }
2924 }
2925 qemu_opt_set(opts, "localaddr", host);
2926 qemu_opt_set(opts, "localport", port);
2927 }
2928 return opts;
2929 }
aeb2c47a
GH		 2930 if (strstart(filename, "unix:", &p)) {
2931 qemu_opt_set(opts, "backend", "socket");
2932 if (qemu_opts_do_parse(opts, p, "path") != 0)
2933 goto fail;
2934 return opts;
2935 }
48b76496
GH		 2936 if (strstart(filename, "/dev/parport", NULL) ||
2937 strstart(filename, "/dev/ppi", NULL)) {
2938 qemu_opt_set(opts, "backend", "parport");
2939 qemu_opt_set(opts, "path", filename);
2940 return opts;
2941 }
2942 if (strstart(filename, "/dev/", NULL)) {
2943 qemu_opt_set(opts, "backend", "tty");
2944 qemu_opt_set(opts, "path", filename);
2945 return opts;
2946 }
191bc01b 2947
aeb2c47a 2948fail:
191bc01b
GH		 2949 qemu_opts_del(opts);
2950 return NULL;
2951}
2952
88a946d3
GH		 2953#ifdef HAVE_CHARDEV_PARPORT
2954
2955static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
2956{
2957 const char *filename = qemu_opt_get(opts, "path");
2958 int fd;
2959
2960 fd = qemu_open(filename, O_RDWR);
2961 if (fd < 0) {
2962 return NULL;
2963 }
2964 return qemu_chr_open_pp_fd(fd);
2965}
2966
2967#endif
2968
191bc01b
GH		 2969static const struct {
2970 const char *name;
1f51470d 2971 CharDriverState *(*open)(QemuOpts *opts);
191bc01b
GH		 2972} backend_table[] = {
2973 { .name = "null", .open = qemu_chr_open_null },
aeb2c47a 2974 { .name = "socket", .open = qemu_chr_open_socket },
7e1b35b4 2975 { .name = "udp", .open = qemu_chr_open_udp },
f0457e8d 2976 { .name = "msmouse", .open = qemu_chr_open_msmouse },
d82831db 2977 { .name = "vc", .open = vc_init },
3949e594 2978 { .name = "memory", .open = qemu_chr_open_ringbuf },
7d31544f
GH		 2979#ifdef _WIN32
2980 { .name = "file", .open = qemu_chr_open_win_file_out },
2981 { .name = "pipe", .open = qemu_chr_open_win_pipe },
d6c983cd 2982 { .name = "console", .open = qemu_chr_open_win_con },
48b76496 2983 { .name = "serial", .open = qemu_chr_open_win },
db418a0a 2984 { .name = "stdio", .open = qemu_chr_open_win_stdio },
7d31544f
GH		 2985#else
2986 { .name = "file", .open = qemu_chr_open_file_out },
2987 { .name = "pipe", .open = qemu_chr_open_pipe },
3c17affb 2988 { .name = "stdio", .open = qemu_chr_open_stdio },
7d31544f 2989#endif
dc1c21e6
GH		 2990#ifdef CONFIG_BRLAPI
2991 { .name = "braille", .open = chr_baum_init },
2992#endif
e551498e 2993#ifdef HAVE_CHARDEV_TTY
48b76496 2994 { .name = "tty", .open = qemu_chr_open_tty },
d59044ef 2995 { .name = "serial", .open = qemu_chr_open_tty },
e551498e 2996 { .name = "pty", .open = qemu_chr_open_pty },
48b76496 2997#endif
e551498e 2998#ifdef HAVE_CHARDEV_PARPORT
88a946d3 2999 { .name = "parallel", .open = qemu_chr_open_pp },
48b76496
GH		 3000 { .name = "parport", .open = qemu_chr_open_pp },
3001#endif
cbcc6336
AL		 3002#ifdef CONFIG_SPICE
3003 { .name = "spicevmc", .open = qemu_chr_open_spice },
5a49d3e9
MAL		 3004#if SPICE_SERVER_VERSION >= 0x000c02
3005 { .name = "spiceport", .open = qemu_chr_open_spice_port },
3006#endif
cbcc6336 3007#endif
191bc01b
GH		 3008};
3009
f69554b9 3010CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
bd2d80b2
GH		 3011 void (*init)(struct CharDriverState *s),
3012 Error **errp)
191bc01b
GH		 3013{
3014 CharDriverState *chr;
3015 int i;
3016
3017 if (qemu_opts_id(opts) == NULL) {
312fd5f2 3018 error_setg(errp, "chardev: no id specified");
2274ae9d 3019 goto err;
191bc01b
GH		 3020 }
3021
1bbd185f 3022 if (qemu_opt_get(opts, "backend") == NULL) {
312fd5f2 3023 error_setg(errp, "chardev: \"%s\" missing backend",
bd2d80b2 3024 qemu_opts_id(opts));
2274ae9d 3025 goto err;
1bbd185f 3026 }
191bc01b
GH		 3027 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
3028 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
3029 break;
3030 }
3031 if (i == ARRAY_SIZE(backend_table)) {
312fd5f2 3032 error_setg(errp, "chardev: backend \"%s\" not found",
bd2d80b2 3033 qemu_opt_get(opts, "backend"));
2274ae9d 3034 goto err;
191bc01b
GH		 3035 }
3036
1f51470d
MA		 3037 chr = backend_table[i].open(opts);
3038 if (!chr) {
312fd5f2 3039 error_setg(errp, "chardev: opening backend \"%s\" failed",
bd2d80b2 3040 qemu_opt_get(opts, "backend"));
2274ae9d 3041 goto err;
191bc01b
GH		 3042 }
3043
3044 if (!chr->filename)
7267c094 3045 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
191bc01b 3046 chr->init = init;
72cf2d4f 3047 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
7591c5c1
GH		 3048
3049 if (qemu_opt_get_bool(opts, "mux", 0)) {
3050 CharDriverState *base = chr;
3051 int len = strlen(qemu_opts_id(opts)) + 6;
7267c094 3052 base->label = g_malloc(len);
7591c5c1
GH		 3053 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3054 chr = qemu_chr_open_mux(base);
3055 chr->filename = base->filename;
d5b27167 3056 chr->avail_connections = MAX_MUX;
72cf2d4f 3057 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
d5b27167
KK		 3058 } else {
3059 chr->avail_connections = 1;
7591c5c1 3060 }
7267c094 3061 chr->label = g_strdup(qemu_opts_id(opts));
2274ae9d 3062 chr->opts = opts;
191bc01b 3063 return chr;
2274ae9d
GH		 3064
3065err:
3066 qemu_opts_del(opts);
3067 return NULL;
191bc01b
GH		 3068}
3069
27143a44 3070CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
6f97dba0
AL		 3071{
3072 const char *p;
3073 CharDriverState *chr;
191bc01b 3074 QemuOpts *opts;
bd2d80b2 3075 Error *err = NULL;
191bc01b 3076
c845f401
GH		 3077 if (strstart(filename, "chardev:", &p)) {
3078 return qemu_chr_find(p);
3079 }
3080
191bc01b 3081 opts = qemu_chr_parse_compat(label, filename);
7e1b35b4
GH		 3082 if (!opts)
3083 return NULL;
6f97dba0 3084
bd2d80b2
GH		 3085 chr = qemu_chr_new_from_opts(opts, init, &err);
3086 if (error_is_set(&err)) {
3087 fprintf(stderr, "%s\n", error_get_pretty(err));
3088 error_free(err);
3089 }
7e1b35b4
GH		 3090 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3091 monitor_init(chr, MONITOR_USE_READLINE);
6f97dba0
AL		 3092 }
3093 return chr;
3094}
3095
15f31519 3096void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
c48855e1
PB		 3097{
3098 if (chr->chr_set_echo) {
3099 chr->chr_set_echo(chr, echo);
3100 }
3101}
3102
c9d830ed 3103void qemu_chr_fe_open(struct CharDriverState *chr)
7c32c4fe
HG		 3104{
3105 if (chr->chr_guest_open) {
3106 chr->chr_guest_open(chr);
3107 }
3108}
3109
2817822d 3110void qemu_chr_fe_close(struct CharDriverState *chr)
7c32c4fe
HG		 3111{
3112 if (chr->chr_guest_close) {
3113 chr->chr_guest_close(chr);
3114 }
3115}
3116
70f24fb6 3117void qemu_chr_delete(CharDriverState *chr)
6f97dba0 3118{
72cf2d4f 3119 QTAILQ_REMOVE(&chardevs, chr, next);
2274ae9d 3120 if (chr->chr_close) {
6f97dba0 3121 chr->chr_close(chr);
2274ae9d 3122 }
7267c094
AL		 3123 g_free(chr->filename);
3124 g_free(chr->label);
2274ae9d
GH		 3125 if (chr->opts) {
3126 qemu_opts_del(chr->opts);
3127 }
7267c094 3128 g_free(chr);
6f97dba0
AL		 3129}
3130
c5a415a0 3131ChardevInfoList *qmp_query_chardev(Error **errp)
6f97dba0 3132{
c5a415a0 3133 ChardevInfoList *chr_list = NULL;
6f97dba0
AL		 3134 CharDriverState *chr;
3135
72cf2d4f 3136 QTAILQ_FOREACH(chr, &chardevs, next) {
c5a415a0
LC		 3137 ChardevInfoList *info = g_malloc0(sizeof(*info));
3138 info->value = g_malloc0(sizeof(*info->value));
3139 info->value->label = g_strdup(chr->label);
3140 info->value->filename = g_strdup(chr->filename);
3141
3142 info->next = chr_list;
3143 chr_list = info;
6f97dba0 3144 }
588b3832 3145
c5a415a0 3146 return chr_list;
6f97dba0 3147}
c845f401
GH		 3148
3149CharDriverState *qemu_chr_find(const char *name)
3150{
3151 CharDriverState *chr;
3152
72cf2d4f 3153 QTAILQ_FOREACH(chr, &chardevs, next) {
c845f401
GH		 3154 if (strcmp(chr->label, name) != 0)
3155 continue;
3156 return chr;
3157 }
3158 return NULL;
3159}
0beb4942
AL		 3160
3161/* Get a character (serial) device interface. */
3162CharDriverState *qemu_char_get_next_serial(void)
3163{
3164 static int next_serial;
3165
3166 /* FIXME: This function needs to go away: use chardev properties! */
3167 return serial_hds[next_serial++];
3168}
3169
4d454574
PB		 3170QemuOptsList qemu_chardev_opts = {
3171 .name = "chardev",
3172 .implied_opt_name = "backend",
3173 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3174 .desc = {
3175 {
3176 .name = "backend",
3177 .type = QEMU_OPT_STRING,
3178 },{
3179 .name = "path",
3180 .type = QEMU_OPT_STRING,
3181 },{
3182 .name = "host",
3183 .type = QEMU_OPT_STRING,
3184 },{
3185 .name = "port",
3186 .type = QEMU_OPT_STRING,
3187 },{
3188 .name = "localaddr",
3189 .type = QEMU_OPT_STRING,
3190 },{
3191 .name = "localport",
3192 .type = QEMU_OPT_STRING,
3193 },{
3194 .name = "to",
3195 .type = QEMU_OPT_NUMBER,
3196 },{
3197 .name = "ipv4",
3198 .type = QEMU_OPT_BOOL,
3199 },{
3200 .name = "ipv6",
3201 .type = QEMU_OPT_BOOL,
3202 },{
3203 .name = "wait",
3204 .type = QEMU_OPT_BOOL,
3205 },{
3206 .name = "server",
3207 .type = QEMU_OPT_BOOL,
3208 },{
3209 .name = "delay",
3210 .type = QEMU_OPT_BOOL,
3211 },{
3212 .name = "telnet",
3213 .type = QEMU_OPT_BOOL,
3214 },{
3215 .name = "width",
3216 .type = QEMU_OPT_NUMBER,
3217 },{
3218 .name = "height",
3219 .type = QEMU_OPT_NUMBER,
3220 },{
3221 .name = "cols",
3222 .type = QEMU_OPT_NUMBER,
3223 },{
3224 .name = "rows",
3225 .type = QEMU_OPT_NUMBER,
3226 },{
3227 .name = "mux",
3228 .type = QEMU_OPT_BOOL,
3229 },{
3230 .name = "signal",
3231 .type = QEMU_OPT_BOOL,
3232 },{
3233 .name = "name",
3234 .type = QEMU_OPT_STRING,
3235 },{
3236 .name = "debug",
3237 .type = QEMU_OPT_NUMBER,
51767e7c 3238 },{
3949e594 3239 .name = "size",
de1cc36e 3240 .type = QEMU_OPT_SIZE,
4d454574
PB		 3241 },
3242 { /* end of list */ }
3243 },
3244};
f1a1a356 3245
ffbdbe59
GH		 3246#ifdef _WIN32
3247
3248static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3249{
3250 HANDLE out;
3251
3252 if (file->in) {
3253 error_setg(errp, "input file not supported");
3254 return NULL;
3255 }
3256
3257 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3258 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3259 if (out == INVALID_HANDLE_VALUE) {
3260 error_setg(errp, "open %s failed", file->out);
3261 return NULL;
3262 }
3263 return qemu_chr_open_win_file(out);
3264}
3265
d36b2b90
MA		 3266static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3267 Error **errp)
d59044ef 3268{
d36b2b90
MA		 3269 return qemu_chr_open_win_path(serial->device);
3270}
3271
3272static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3273 Error **errp)
3274{
3275 error_setg(errp, "character device backend type 'parallel' not supported");
3276 return NULL;
d59044ef
GH		 3277}
3278
ffbdbe59
GH		 3279#else /* WIN32 */
3280
3281static int qmp_chardev_open_file_source(char *src, int flags,
3282 Error **errp)
3283{
3284 int fd = -1;
3285
3286 TFR(fd = qemu_open(src, flags, 0666));
3287 if (fd == -1) {
3288 error_setg(errp, "open %s: %s", src, strerror(errno));
3289 }
3290 return fd;
3291}
3292
3293static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3294{
3295 int flags, in = -1, out = -1;
3296
3297 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3298 out = qmp_chardev_open_file_source(file->out, flags, errp);
3299 if (error_is_set(errp)) {
3300 return NULL;
3301 }
3302
3303 if (file->in) {
3304 flags = O_RDONLY;
3305 in = qmp_chardev_open_file_source(file->in, flags, errp);
3306 if (error_is_set(errp)) {
3307 qemu_close(out);
3308 return NULL;
3309 }
3310 }
3311
3312 return qemu_chr_open_fd(in, out);
3313}
3314
d36b2b90
MA		 3315static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3316 Error **errp)
d59044ef 3317{
d59044ef 3318#ifdef HAVE_CHARDEV_TTY
d36b2b90
MA		 3319 int fd;
3320
3321 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3322 if (error_is_set(errp)) {
3323 return NULL;
39099991 3324 }
d36b2b90
MA		 3325 socket_set_nonblock(fd);
3326 return qemu_chr_open_tty_fd(fd);
3327#else
3328 error_setg(errp, "character device backend type 'serial' not supported");
3329 return NULL;
88a946d3 3330#endif
d36b2b90
MA		 3331}
3332
3333static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3334 Error **errp)
3335{
88a946d3 3336#ifdef HAVE_CHARDEV_PARPORT
d36b2b90
MA		 3337 int fd;
3338
3339 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3340 if (error_is_set(errp)) {
d59044ef
GH		 3341 return NULL;
3342 }
d36b2b90
MA		 3343 return qemu_chr_open_pp_fd(fd);
3344#else
3345 error_setg(errp, "character device backend type 'parallel' not supported");
3346 return NULL;
3347#endif
d59044ef
GH		 3348}
3349
ffbdbe59
GH		 3350#endif /* WIN32 */
3351
f6bd5d6e
GH		 3352static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3353 Error **errp)
3354{
3355 SocketAddress *addr = sock->addr;
3356 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3357 bool is_listen = sock->has_server ? sock->server : true;
3358 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3359 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3360 int fd;
3361
3362 if (is_listen) {
3363 fd = socket_listen(addr, errp);
3364 } else {
3365 fd = socket_connect(addr, errp, NULL, NULL);
3366 }
3367 if (error_is_set(errp)) {
3368 return NULL;
3369 }
3370 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3371 is_telnet, is_waitconnect, errp);
3372}
3373
f1a1a356
GH		 3374ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3375 Error **errp)
3376{
3377 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3378 CharDriverState *chr = NULL;
3379
3380 chr = qemu_chr_find(id);
3381 if (chr) {
3382 error_setg(errp, "Chardev '%s' already exists", id);
3383 g_free(ret);
3384 return NULL;
3385 }
3386
3387 switch (backend->kind) {
ffbdbe59
GH		 3388 case CHARDEV_BACKEND_KIND_FILE:
3389 chr = qmp_chardev_open_file(backend->file, errp);
3390 break;
d36b2b90
MA		 3391 case CHARDEV_BACKEND_KIND_SERIAL:
3392 chr = qmp_chardev_open_serial(backend->serial, errp);
3393 break;
3394 case CHARDEV_BACKEND_KIND_PARALLEL:
3395 chr = qmp_chardev_open_parallel(backend->parallel, errp);
d59044ef 3396 break;
f6bd5d6e
GH		 3397 case CHARDEV_BACKEND_KIND_SOCKET:
3398 chr = qmp_chardev_open_socket(backend->socket, errp);
3399 break;
0a1a7fab
GH		 3400#ifdef HAVE_CHARDEV_TTY
3401 case CHARDEV_BACKEND_KIND_PTY:
3402 {
3403 /* qemu_chr_open_pty sets "path" in opts */
3404 QemuOpts *opts;
3405 opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
3406 chr = qemu_chr_open_pty(opts);
3407 ret->pty = g_strdup(qemu_opt_get(opts, "path"));
3408 ret->has_pty = true;
3409 qemu_opts_del(opts);
3410 break;
3411 }
3412#endif
f1a1a356
GH		 3413 case CHARDEV_BACKEND_KIND_NULL:
3414 chr = qemu_chr_open_null(NULL);
3415 break;
3416 default:
3417 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3418 break;
3419 }
3420
3421 if (chr == NULL && !error_is_set(errp)) {
3422 error_setg(errp, "Failed to create chardev");
3423 }
3424 if (chr) {
3425 chr->label = g_strdup(id);
3426 chr->avail_connections = 1;
3427 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3428 return ret;
3429 } else {
3430 g_free(ret);
3431 return NULL;
3432 }
3433}
3434
3435void qmp_chardev_remove(const char *id, Error **errp)
3436{
3437 CharDriverState *chr;
3438
3439 chr = qemu_chr_find(id);
3440 if (NULL == chr) {
3441 error_setg(errp, "Chardev '%s' not found", id);
3442 return;
3443 }
3444 if (chr->chr_can_read || chr->chr_read ||
3445 chr->chr_event || chr->handler_opaque) {
3446 error_setg(errp, "Chardev '%s' is busy", id);
3447 return;
3448 }
3449 qemu_chr_delete(chr);
3450}
Qemu copy for testing