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qemu-char: Automatically do fe_open / fe_close on qemu_chr_add_handlers
[qemu.git] / qemu-char.c
CommitLineData
6f97dba0
AL		 1/*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24#include "qemu-common.h"
83c9089e 25#include "monitor/monitor.h"
28ecbaee 26#include "ui/console.h"
9c17d615 27#include "sysemu/sysemu.h"
1de7afc9 28#include "qemu/timer.h"
927d4878 29#include "char/char.h"
cf3ebac7 30#include "hw/usb.h"
c5a415a0 31#include "qmp-commands.h"
6f97dba0
AL		 32
33#include <unistd.h>
34#include <fcntl.h>
6f97dba0
AL		 35#include <time.h>
36#include <errno.h>
37#include <sys/time.h>
38#include <zlib.h>
39
40#ifndef _WIN32
41#include <sys/times.h>
42#include <sys/wait.h>
43#include <termios.h>
44#include <sys/mman.h>
45#include <sys/ioctl.h>
24646c7e 46#include <sys/resource.h>
6f97dba0
AL		 47#include <sys/socket.h>
48#include <netinet/in.h>
24646c7e 49#include <net/if.h>
24646c7e 50#include <arpa/inet.h>
6f97dba0
AL		 51#include <dirent.h>
52#include <netdb.h>
53#include <sys/select.h>
71e72a19 54#ifdef CONFIG_BSD
6f97dba0 55#include <sys/stat.h>
a167ba50
AJ		 56#if defined(__GLIBC__)
57#include <pty.h>
3294ce18
MT		 58#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
59#include <libutil.h>
60#else
61#include <util.h>
a167ba50 62#endif
3294ce18
MT		 63#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
64#include <dev/ppbus/ppi.h>
65#include <dev/ppbus/ppbconf.h>
c5e97233 66#elif defined(__DragonFly__)
c5e97233
BS		 67#include <dev/misc/ppi/ppi.h>
68#include <bus/ppbus/ppbconf.h>
6f97dba0 69#endif
bbe813a2 70#else
6f97dba0 71#ifdef __linux__
6f97dba0
AL		 72#include <pty.h>
73
74#include <linux/ppdev.h>
75#include <linux/parport.h>
76#endif
77#ifdef __sun__
78#include <sys/stat.h>
79#include <sys/ethernet.h>
80#include <sys/sockio.h>
81#include <netinet/arp.h>
82#include <netinet/in.h>
83#include <netinet/in_systm.h>
84#include <netinet/ip.h>
85#include <netinet/ip_icmp.h> // must come after ip.h
86#include <netinet/udp.h>
87#include <netinet/tcp.h>
88#include <net/if.h>
89#include <syslog.h>
90#include <stropts.h>
91#endif
92#endif
93#endif
94
1de7afc9 95#include "qemu/sockets.h"
cbcc6336 96#include "ui/qemu-spice.h"
6f97dba0 97
9bd7854e
AS		 98#define READ_BUF_LEN 4096
99
6f97dba0
AL		 100/***********************************************************/
101/* character device */
102
72cf2d4f
BS		 103static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
104 QTAILQ_HEAD_INITIALIZER(chardevs);
2970a6c9 105
a425d23f 106void qemu_chr_be_event(CharDriverState *s, int event)
6f97dba0 107{
73cdf3f2
AG		 108 /* Keep track if the char device is open */
109 switch (event) {
110 case CHR_EVENT_OPENED:
16665b94 111 s->be_open = 1;
73cdf3f2
AG		 112 break;
113 case CHR_EVENT_CLOSED:
16665b94 114 s->be_open = 0;
73cdf3f2
AG		 115 break;
116 }
117
6f97dba0
AL		 118 if (!s->chr_event)
119 return;
120 s->chr_event(s->handler_opaque, event);
121}
122
fee204fd 123static gboolean qemu_chr_be_generic_open_bh(gpointer opaque)
6f97dba0
AL		 124{
125 CharDriverState *s = opaque;
a425d23f 126 qemu_chr_be_event(s, CHR_EVENT_OPENED);
9f939df9
AL		 127 s->idle_tag = 0;
128 return FALSE;
6f97dba0
AL		 129}
130
fee204fd 131void qemu_chr_be_generic_open(CharDriverState *s)
6f97dba0 132{
9f939df9 133 if (s->idle_tag == 0) {
fee204fd 134 s->idle_tag = g_idle_add(qemu_chr_be_generic_open_bh, s);
6f97dba0
AL		 135 }
136}
137
2cc6e0a1 138int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
6f97dba0
AL		 139{
140 return s->chr_write(s, buf, len);
141}
142
cd18720a
AL		 143int qemu_chr_fe_write_all(CharDriverState *s, const uint8_t *buf, int len)
144{
145 int offset = 0;
146 int res;
147
148 while (offset < len) {
149 do {
150 res = s->chr_write(s, buf + offset, len - offset);
151 if (res == -1 && errno == EAGAIN) {
152 g_usleep(100);
153 }
154 } while (res == -1 && errno == EAGAIN);
155
156 if (res == 0) {
157 break;
158 }
159
160 if (res < 0) {
161 return res;
162 }
163
164 offset += res;
165 }
166
167 return offset;
168}
169
41084f1b 170int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
6f97dba0
AL		 171{
172 if (!s->chr_ioctl)
173 return -ENOTSUP;
174 return s->chr_ioctl(s, cmd, arg);
175}
176
909cda12 177int qemu_chr_be_can_write(CharDriverState *s)
6f97dba0
AL		 178{
179 if (!s->chr_can_read)
180 return 0;
181 return s->chr_can_read(s->handler_opaque);
182}
183
fa5efccb 184void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
6f97dba0 185{
ac310734
SW		 186 if (s->chr_read) {
187 s->chr_read(s->handler_opaque, buf, len);
188 }
6f97dba0
AL		 189}
190
74c0d6f0 191int qemu_chr_fe_get_msgfd(CharDriverState *s)
7d174059
MM		 192{
193 return s->get_msgfd ? s->get_msgfd(s) : -1;
194}
195
13661089
DB		 196int qemu_chr_add_client(CharDriverState *s, int fd)
197{
198 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
199}
200
6f97dba0
AL		 201void qemu_chr_accept_input(CharDriverState *s)
202{
203 if (s->chr_accept_input)
204 s->chr_accept_input(s);
98c8ee1d 205 qemu_notify_event();
6f97dba0
AL		 206}
207
e7e71b0e 208void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
6f97dba0 209{
9bd7854e 210 char buf[READ_BUF_LEN];
6f97dba0
AL		 211 va_list ap;
212 va_start(ap, fmt);
213 vsnprintf(buf, sizeof(buf), fmt, ap);
2cc6e0a1 214 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
6f97dba0
AL		 215 va_end(ap);
216}
217
6f97dba0 218void qemu_chr_add_handlers(CharDriverState *s,
7b27a769 219 IOCanReadHandler *fd_can_read,
6f97dba0
AL		 220 IOReadHandler *fd_read,
221 IOEventHandler *fd_event,
222 void *opaque)
223{
19083228
HG		 224 int fe_open;
225
da7d998b 226 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
2d6c1ef4 227 /* chr driver being released. */
d5b27167 228 ++s->avail_connections;
19083228
HG		 229 fe_open = 0;
230 } else {
231 fe_open = 1;
2d6c1ef4 232 }
6f97dba0
AL		 233 s->chr_can_read = fd_can_read;
234 s->chr_read = fd_read;
235 s->chr_event = fd_event;
236 s->handler_opaque = opaque;
237 if (s->chr_update_read_handler)
238 s->chr_update_read_handler(s);
73cdf3f2 239
19083228
HG		 240 if (!s->explicit_fe_open) {
241 if (fe_open) {
242 qemu_chr_fe_open(s);
243 } else {
244 qemu_chr_fe_close(s);
245 }
246 }
247
73cdf3f2
AG		 248 /* We're connecting to an already opened device, so let's make sure we
249 also get the open event */
16665b94 250 if (s->be_open) {
fee204fd 251 qemu_chr_be_generic_open(s);
73cdf3f2 252 }
6f97dba0
AL		 253}
254
255static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
256{
257 return len;
258}
259
80dca9e6 260static CharDriverState *qemu_chr_open_null(void)
6f97dba0
AL		 261{
262 CharDriverState *chr;
263
7267c094 264 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0 265 chr->chr_write = null_chr_write;
1f51470d 266 return chr;
6f97dba0
AL		 267}
268
269/* MUX driver for serial I/O splitting */
6f97dba0
AL		 270#define MAX_MUX 4
271#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
272#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
273typedef struct {
7b27a769 274 IOCanReadHandler *chr_can_read[MAX_MUX];
6f97dba0
AL		 275 IOReadHandler *chr_read[MAX_MUX];
276 IOEventHandler *chr_event[MAX_MUX];
277 void *ext_opaque[MAX_MUX];
278 CharDriverState *drv;
799f1f23 279 int focus;
6f97dba0
AL		 280 int mux_cnt;
281 int term_got_escape;
282 int max_size;
a80bf99f
AL		 283 /* Intermediate input buffer allows to catch escape sequences even if the
284 currently active device is not accepting any input - but only until it
285 is full as well. */
286 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
287 int prod[MAX_MUX];
288 int cons[MAX_MUX];
2d22959d 289 int timestamps;
4ab312f7 290 int linestart;
2d22959d 291 int64_t timestamps_start;
6f97dba0
AL		 292} MuxDriver;
293
294
295static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
296{
297 MuxDriver *d = chr->opaque;
298 int ret;
2d22959d 299 if (!d->timestamps) {
6f97dba0
AL		 300 ret = d->drv->chr_write(d->drv, buf, len);
301 } else {
302 int i;
303
304 ret = 0;
4ab312f7
JK		 305 for (i = 0; i < len; i++) {
306 if (d->linestart) {
6f97dba0
AL		 307 char buf1[64];
308 int64_t ti;
309 int secs;
310
7bd427d8 311 ti = qemu_get_clock_ms(rt_clock);
2d22959d
JK		 312 if (d->timestamps_start == -1)
313 d->timestamps_start = ti;
314 ti -= d->timestamps_start;
a4bb1db8 315 secs = ti / 1000;
6f97dba0
AL		 316 snprintf(buf1, sizeof(buf1),
317 "[%02d:%02d:%02d.%03d] ",
318 secs / 3600,
319 (secs / 60) % 60,
320 secs % 60,
a4bb1db8 321 (int)(ti % 1000));
6f97dba0 322 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
4ab312f7
JK		 323 d->linestart = 0;
324 }
325 ret += d->drv->chr_write(d->drv, buf+i, 1);
326 if (buf[i] == '\n') {
327 d->linestart = 1;
6f97dba0
AL		 328 }
329 }
330 }
331 return ret;
332}
333
334static const char * const mux_help[] = {
335 "% h print this help\n\r",
336 "% x exit emulator\n\r",
337 "% s save disk data back to file (if -snapshot)\n\r",
338 "% t toggle console timestamps\n\r"
339 "% b send break (magic sysrq)\n\r",
340 "% c switch between console and monitor\n\r",
341 "% % sends %\n\r",
342 NULL
343};
344
345int term_escape_char = 0x01; /* ctrl-a is used for escape */
346static void mux_print_help(CharDriverState *chr)
347{
348 int i, j;
349 char ebuf[15] = "Escape-Char";
350 char cbuf[50] = "\n\r";
351
352 if (term_escape_char > 0 && term_escape_char < 26) {
353 snprintf(cbuf, sizeof(cbuf), "\n\r");
354 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
355 } else {
356 snprintf(cbuf, sizeof(cbuf),
357 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
358 term_escape_char);
359 }
360 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
361 for (i = 0; mux_help[i] != NULL; i++) {
362 for (j=0; mux_help[i][j] != '\0'; j++) {
363 if (mux_help[i][j] == '%')
364 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
365 else
366 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
367 }
368 }
369}
370
2724b180
AL		 371static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
372{
373 if (d->chr_event[mux_nr])
374 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
375}
376
6f97dba0
AL		 377static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
378{
379 if (d->term_got_escape) {
380 d->term_got_escape = 0;
381 if (ch == term_escape_char)
382 goto send_char;
383 switch(ch) {
384 case '?':
385 case 'h':
386 mux_print_help(chr);
387 break;
388 case 'x':
389 {
390 const char *term = "QEMU: Terminated\n\r";
391 chr->chr_write(chr,(uint8_t *)term,strlen(term));
392 exit(0);
393 break;
394 }
395 case 's':
6ab4b5ab 396 bdrv_commit_all();
6f97dba0
AL		 397 break;
398 case 'b':
a425d23f 399 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 400 break;
401 case 'c':
402 /* Switch to the next registered device */
799f1f23
GH		 403 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
404 d->focus++;
405 if (d->focus >= d->mux_cnt)
406 d->focus = 0;
407 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
6f97dba0 408 break;
2d22959d
JK		 409 case 't':
410 d->timestamps = !d->timestamps;
411 d->timestamps_start = -1;
4ab312f7 412 d->linestart = 0;
2d22959d 413 break;
6f97dba0
AL		 414 }
415 } else if (ch == term_escape_char) {
416 d->term_got_escape = 1;
417 } else {
418 send_char:
419 return 1;
420 }
421 return 0;
422}
423
424static void mux_chr_accept_input(CharDriverState *chr)
425{
6f97dba0 426 MuxDriver *d = chr->opaque;
799f1f23 427 int m = d->focus;
6f97dba0 428
a80bf99f 429 while (d->prod[m] != d->cons[m] &&
6f97dba0
AL		 430 d->chr_can_read[m] &&
431 d->chr_can_read[m](d->ext_opaque[m])) {
432 d->chr_read[m](d->ext_opaque[m],
a80bf99f 433 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
6f97dba0
AL		 434 }
435}
436
437static int mux_chr_can_read(void *opaque)
438{
439 CharDriverState *chr = opaque;
440 MuxDriver *d = chr->opaque;
799f1f23 441 int m = d->focus;
6f97dba0 442
a80bf99f 443 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
6f97dba0 444 return 1;
a80bf99f
AL		 445 if (d->chr_can_read[m])
446 return d->chr_can_read[m](d->ext_opaque[m]);
6f97dba0
AL		 447 return 0;
448}
449
450static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
451{
452 CharDriverState *chr = opaque;
453 MuxDriver *d = chr->opaque;
799f1f23 454 int m = d->focus;
6f97dba0
AL		 455 int i;
456
457 mux_chr_accept_input (opaque);
458
459 for(i = 0; i < size; i++)
460 if (mux_proc_byte(chr, d, buf[i])) {
a80bf99f 461 if (d->prod[m] == d->cons[m] &&
6f97dba0
AL		 462 d->chr_can_read[m] &&
463 d->chr_can_read[m](d->ext_opaque[m]))
464 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
465 else
a80bf99f 466 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
6f97dba0
AL		 467 }
468}
469
470static void mux_chr_event(void *opaque, int event)
471{
472 CharDriverState *chr = opaque;
473 MuxDriver *d = chr->opaque;
474 int i;
475
476 /* Send the event to all registered listeners */
477 for (i = 0; i < d->mux_cnt; i++)
2724b180 478 mux_chr_send_event(d, i, event);
6f97dba0
AL		 479}
480
481static void mux_chr_update_read_handler(CharDriverState *chr)
482{
483 MuxDriver *d = chr->opaque;
484
485 if (d->mux_cnt >= MAX_MUX) {
486 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
487 return;
488 }
489 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
490 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
491 d->chr_read[d->mux_cnt] = chr->chr_read;
492 d->chr_event[d->mux_cnt] = chr->chr_event;
493 /* Fix up the real driver with mux routines */
494 if (d->mux_cnt == 0) {
495 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
496 mux_chr_event, chr);
497 }
799f1f23
GH		 498 if (d->focus != -1) {
499 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
a7aec5da 500 }
799f1f23 501 d->focus = d->mux_cnt;
6f97dba0 502 d->mux_cnt++;
799f1f23 503 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
6f97dba0
AL		 504}
505
506static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
507{
508 CharDriverState *chr;
509 MuxDriver *d;
510
7267c094
AL		 511 chr = g_malloc0(sizeof(CharDriverState));
512 d = g_malloc0(sizeof(MuxDriver));
6f97dba0
AL		 513
514 chr->opaque = d;
515 d->drv = drv;
799f1f23 516 d->focus = -1;
6f97dba0
AL		 517 chr->chr_write = mux_chr_write;
518 chr->chr_update_read_handler = mux_chr_update_read_handler;
519 chr->chr_accept_input = mux_chr_accept_input;
7c32c4fe
HG		 520 /* Frontend guest-open / -close notification is not support with muxes */
521 chr->chr_guest_open = NULL;
522 chr->chr_guest_close = NULL;
73cdf3f2
AG		 523
524 /* Muxes are always open on creation */
fee204fd 525 qemu_chr_be_generic_open(chr);
73cdf3f2 526
6f97dba0
AL		 527 return chr;
528}
529
530
531#ifdef _WIN32
d247d25f 532int send_all(int fd, const void *buf, int len1)
6f97dba0
AL		 533{
534 int ret, len;
535
536 len = len1;
537 while (len > 0) {
538 ret = send(fd, buf, len, 0);
539 if (ret < 0) {
6f97dba0
AL		 540 errno = WSAGetLastError();
541 if (errno != WSAEWOULDBLOCK) {
542 return -1;
543 }
544 } else if (ret == 0) {
545 break;
546 } else {
547 buf += ret;
548 len -= ret;
549 }
550 }
551 return len1 - len;
552}
553
554#else
555
5fc9cfed 556int send_all(int fd, const void *_buf, int len1)
6f97dba0
AL		 557{
558 int ret, len;
5fc9cfed 559 const uint8_t *buf = _buf;
6f97dba0
AL		 560
561 len = len1;
562 while (len > 0) {
563 ret = write(fd, buf, len);
564 if (ret < 0) {
565 if (errno != EINTR && errno != EAGAIN)
566 return -1;
567 } else if (ret == 0) {
568 break;
569 } else {
570 buf += ret;
571 len -= ret;
572 }
573 }
574 return len1 - len;
575}
4549a8b7
SB		 576
577int recv_all(int fd, void *_buf, int len1, bool single_read)
578{
579 int ret, len;
580 uint8_t *buf = _buf;
581
582 len = len1;
583 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
584 if (ret < 0) {
585 if (errno != EINTR && errno != EAGAIN) {
586 return -1;
587 }
588 continue;
589 } else {
590 if (single_read) {
591 return ret;
592 }
593 buf += ret;
594 len -= ret;
595 }
596 }
597 return len1 - len;
598}
599
6f97dba0
AL		 600#endif /* !_WIN32 */
601
96c63847
AL		 602typedef struct IOWatchPoll
603{
604 GSource *src;
605 int max_size;
606
607 IOCanReadHandler *fd_can_read;
608 void *opaque;
609
610 QTAILQ_ENTRY(IOWatchPoll) node;
611} IOWatchPoll;
612
613static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
614 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
615
616static IOWatchPoll *io_watch_poll_from_source(GSource *source)
617{
618 IOWatchPoll *i;
619
620 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
621 if (i->src == source) {
622 return i;
623 }
624 }
625
626 return NULL;
627}
628
629static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
630{
631 IOWatchPoll *iwp = io_watch_poll_from_source(source);
632
633 iwp->max_size = iwp->fd_can_read(iwp->opaque);
634 if (iwp->max_size == 0) {
635 return FALSE;
636 }
637
638 return g_io_watch_funcs.prepare(source, timeout_);
639}
640
641static gboolean io_watch_poll_check(GSource *source)
642{
643 IOWatchPoll *iwp = io_watch_poll_from_source(source);
644
645 if (iwp->max_size == 0) {
646 return FALSE;
647 }
648
649 return g_io_watch_funcs.check(source);
650}
651
652static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
653 gpointer user_data)
654{
655 return g_io_watch_funcs.dispatch(source, callback, user_data);
656}
657
658static void io_watch_poll_finalize(GSource *source)
659{
660 IOWatchPoll *iwp = io_watch_poll_from_source(source);
661 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
662 g_io_watch_funcs.finalize(source);
663}
664
665static GSourceFuncs io_watch_poll_funcs = {
666 .prepare = io_watch_poll_prepare,
667 .check = io_watch_poll_check,
668 .dispatch = io_watch_poll_dispatch,
669 .finalize = io_watch_poll_finalize,
670};
671
672/* Can only be used for read */
673static guint io_add_watch_poll(GIOChannel *channel,
674 IOCanReadHandler *fd_can_read,
675 GIOFunc fd_read,
676 gpointer user_data)
677{
678 IOWatchPoll *iwp;
679 GSource *src;
680 guint tag;
681
682 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
683 g_source_set_funcs(src, &io_watch_poll_funcs);
684 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
685 tag = g_source_attach(src, NULL);
686 g_source_unref(src);
687
688 iwp = g_malloc0(sizeof(*iwp));
689 iwp->src = src;
690 iwp->max_size = 0;
691 iwp->fd_can_read = fd_can_read;
692 iwp->opaque = user_data;
693
694 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
695
696 return tag;
697}
698
44ab9ed4 699#ifndef _WIN32
96c63847
AL		 700static GIOChannel *io_channel_from_fd(int fd)
701{
702 GIOChannel *chan;
703
704 if (fd == -1) {
705 return NULL;
706 }
707
708 chan = g_io_channel_unix_new(fd);
709
710 g_io_channel_set_encoding(chan, NULL, NULL);
711 g_io_channel_set_buffered(chan, FALSE);
712
713 return chan;
714}
44ab9ed4 715#endif
96c63847 716
76a9644b
AL		 717static GIOChannel *io_channel_from_socket(int fd)
718{
719 GIOChannel *chan;
720
721 if (fd == -1) {
722 return NULL;
723 }
724
725#ifdef _WIN32
726 chan = g_io_channel_win32_new_socket(fd);
727#else
728 chan = g_io_channel_unix_new(fd);
729#endif
730
731 g_io_channel_set_encoding(chan, NULL, NULL);
732 g_io_channel_set_buffered(chan, FALSE);
733
734 return chan;
735}
736
96c63847
AL		 737static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
738{
739 GIOStatus status;
740 gsize bytes_written;
741 int len;
742 const uint8_t *buf = _buf;
743
744 len = len1;
745 while (len > 0) {
746 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
747 &bytes_written, NULL);
748 if (status != G_IO_STATUS_NORMAL) {
23673ca7
AL		 749 if (status == G_IO_STATUS_AGAIN) {
750 errno = EAGAIN;
751 return -1;
752 } else {
753 errno = EINVAL;
96c63847
AL		 754 return -1;
755 }
756 } else if (status == G_IO_STATUS_EOF) {
757 break;
758 } else {
759 buf += bytes_written;
760 len -= bytes_written;
761 }
762 }
763 return len1 - len;
764}
96c63847 765
44ab9ed4
BS		 766#ifndef _WIN32
767
a29753f8
AL		 768typedef struct FDCharDriver {
769 CharDriverState *chr;
770 GIOChannel *fd_in, *fd_out;
771 guint fd_in_tag;
6f97dba0 772 int max_size;
a29753f8 773 QTAILQ_ENTRY(FDCharDriver) node;
6f97dba0
AL		 774} FDCharDriver;
775
6f97dba0
AL		 776static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
777{
778 FDCharDriver *s = chr->opaque;
a29753f8
AL		 779
780 return io_channel_send_all(s->fd_out, buf, len);
6f97dba0
AL		 781}
782
a29753f8 783static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 784{
785 CharDriverState *chr = opaque;
786 FDCharDriver *s = chr->opaque;
a29753f8 787 int len;
9bd7854e 788 uint8_t buf[READ_BUF_LEN];
a29753f8
AL		 789 GIOStatus status;
790 gsize bytes_read;
6f97dba0
AL		 791
792 len = sizeof(buf);
a29753f8 793 if (len > s->max_size) {
6f97dba0 794 len = s->max_size;
a29753f8
AL		 795 }
796 if (len == 0) {
797 return FALSE;
798 }
799
800 status = g_io_channel_read_chars(chan, (gchar *)buf,
801 len, &bytes_read, NULL);
802 if (status == G_IO_STATUS_EOF) {
a425d23f 803 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
a29753f8 804 return FALSE;
6f97dba0 805 }
a29753f8
AL		 806 if (status == G_IO_STATUS_NORMAL) {
807 qemu_chr_be_write(chr, buf, bytes_read);
6f97dba0 808 }
a29753f8
AL		 809
810 return TRUE;
811}
812
813static int fd_chr_read_poll(void *opaque)
814{
815 CharDriverState *chr = opaque;
816 FDCharDriver *s = chr->opaque;
817
818 s->max_size = qemu_chr_be_can_write(chr);
819 return s->max_size;
6f97dba0
AL		 820}
821
23673ca7
AL		 822static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
823{
824 FDCharDriver *s = chr->opaque;
825 return g_io_create_watch(s->fd_out, cond);
826}
827
6f97dba0
AL		 828static void fd_chr_update_read_handler(CharDriverState *chr)
829{
830 FDCharDriver *s = chr->opaque;
831
a29753f8
AL		 832 if (s->fd_in_tag) {
833 g_source_remove(s->fd_in_tag);
834 }
835
836 if (s->fd_in) {
837 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
6f97dba0
AL		 838 }
839}
840
841static void fd_chr_close(struct CharDriverState *chr)
842{
843 FDCharDriver *s = chr->opaque;
844
a29753f8
AL		 845 if (s->fd_in_tag) {
846 g_source_remove(s->fd_in_tag);
847 s->fd_in_tag = 0;
848 }
849
850 if (s->fd_in) {
851 g_io_channel_unref(s->fd_in);
852 }
853 if (s->fd_out) {
854 g_io_channel_unref(s->fd_out);
6f97dba0
AL		 855 }
856
7267c094 857 g_free(s);
a425d23f 858 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 859}
860
861/* open a character device to a unix fd */
862static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
863{
864 CharDriverState *chr;
865 FDCharDriver *s;
866
7267c094
AL		 867 chr = g_malloc0(sizeof(CharDriverState));
868 s = g_malloc0(sizeof(FDCharDriver));
a29753f8
AL		 869 s->fd_in = io_channel_from_fd(fd_in);
870 s->fd_out = io_channel_from_fd(fd_out);
23673ca7 871 fcntl(fd_out, F_SETFL, O_NONBLOCK);
a29753f8 872 s->chr = chr;
6f97dba0 873 chr->opaque = s;
23673ca7 874 chr->chr_add_watch = fd_chr_add_watch;
6f97dba0
AL		 875 chr->chr_write = fd_chr_write;
876 chr->chr_update_read_handler = fd_chr_update_read_handler;
877 chr->chr_close = fd_chr_close;
878
fee204fd 879 qemu_chr_be_generic_open(chr);
6f97dba0
AL		 880
881 return chr;
882}
883
548cbb36 884static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
6f97dba0
AL		 885{
886 int fd_in, fd_out;
887 char filename_in[256], filename_out[256];
548cbb36 888 const char *filename = opts->device;
7d31544f
GH		 889
890 if (filename == NULL) {
891 fprintf(stderr, "chardev: pipe: no filename given\n");
1f51470d 892 return NULL;
7d31544f 893 }
6f97dba0
AL		 894
895 snprintf(filename_in, 256, "%s.in", filename);
896 snprintf(filename_out, 256, "%s.out", filename);
40ff6d7e
KW		 897 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
898 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
6f97dba0
AL		 899 if (fd_in < 0 || fd_out < 0) {
900 if (fd_in >= 0)
901 close(fd_in);
902 if (fd_out >= 0)
903 close(fd_out);
b181e047 904 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
a89dd6c3 905 if (fd_in < 0) {
1f51470d 906 return NULL;
a89dd6c3 907 }
6f97dba0 908 }
1f51470d 909 return qemu_chr_open_fd(fd_in, fd_out);
6f97dba0
AL		 910}
911
6f97dba0
AL		 912/* init terminal so that we can grab keys */
913static struct termios oldtty;
914static int old_fd0_flags;
bb002513 915static bool stdio_allow_signal;
6f97dba0
AL		 916
917static void term_exit(void)
918{
919 tcsetattr (0, TCSANOW, &oldtty);
920 fcntl(0, F_SETFL, old_fd0_flags);
921}
922
bb002513 923static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
6f97dba0
AL		 924{
925 struct termios tty;
926
0369364b 927 tty = oldtty;
bb002513
PB		 928 if (!echo) {
929 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
6f97dba0 930 |INLCR|IGNCR|ICRNL|IXON);
bb002513
PB		 931 tty.c_oflag |= OPOST;
932 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
933 tty.c_cflag &= ~(CSIZE|PARENB);
934 tty.c_cflag |= CS8;
935 tty.c_cc[VMIN] = 1;
936 tty.c_cc[VTIME] = 0;
937 }
6f97dba0 938 /* if graphical mode, we allow Ctrl-C handling */
bb002513 939 if (!stdio_allow_signal)
6f97dba0 940 tty.c_lflag &= ~ISIG;
6f97dba0
AL		 941
942 tcsetattr (0, TCSANOW, &tty);
6f97dba0
AL		 943}
944
945static void qemu_chr_close_stdio(struct CharDriverState *chr)
946{
947 term_exit();
6f97dba0
AL		 948 fd_chr_close(chr);
949}
950
7c358031 951static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
6f97dba0
AL		 952{
953 CharDriverState *chr;
954
ab51b1d5
MT		 955 if (is_daemonized()) {
956 error_report("cannot use stdio with -daemonize");
957 return NULL;
958 }
ed7a1540
AL		 959 old_fd0_flags = fcntl(0, F_GETFL);
960 tcgetattr (0, &oldtty);
961 fcntl(0, F_SETFL, O_NONBLOCK);
962 atexit(term_exit);
0369364b 963
6f97dba0
AL		 964 chr = qemu_chr_open_fd(0, 1);
965 chr->chr_close = qemu_chr_close_stdio;
bb002513 966 chr->chr_set_echo = qemu_chr_set_echo_stdio;
7c358031
GH		 967 stdio_allow_signal = display_type != DT_NOGRAPHIC;
968 if (opts->has_signal) {
969 stdio_allow_signal = opts->signal;
970 }
15f31519 971 qemu_chr_fe_set_echo(chr, false);
6f97dba0 972
1f51470d 973 return chr;
6f97dba0
AL		 974}
975
976#ifdef __sun__
977/* Once Solaris has openpty(), this is going to be removed. */
3f4cb3d3
BS		 978static int openpty(int *amaster, int *aslave, char *name,
979 struct termios *termp, struct winsize *winp)
6f97dba0
AL		 980{
981 const char *slave;
982 int mfd = -1, sfd = -1;
983
984 *amaster = *aslave = -1;
985
986 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
987 if (mfd < 0)
988 goto err;
989
990 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
991 goto err;
992
993 if ((slave = ptsname(mfd)) == NULL)
994 goto err;
995
996 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
997 goto err;
998
999 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
1000 (termp != NULL && tcgetattr(sfd, termp) < 0))
1001 goto err;
1002
1003 if (amaster)
1004 *amaster = mfd;
1005 if (aslave)
1006 *aslave = sfd;
1007 if (winp)
1008 ioctl(sfd, TIOCSWINSZ, winp);
1009
1010 return 0;
1011
1012err:
1013 if (sfd != -1)
1014 close(sfd);
1015 close(mfd);
1016 return -1;
1017}
1018
3f4cb3d3 1019static void cfmakeraw (struct termios *termios_p)
6f97dba0
AL		 1020{
1021 termios_p->c_iflag &=
1022 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
1023 termios_p->c_oflag &= ~OPOST;
1024 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
1025 termios_p->c_cflag &= ~(CSIZE|PARENB);
1026 termios_p->c_cflag |= CS8;
1027
1028 termios_p->c_cc[VMIN] = 0;
1029 termios_p->c_cc[VTIME] = 0;
1030}
1031#endif
1032
1033#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
a167ba50
AJ		 1034 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1035 || defined(__GLIBC__)
6f97dba0 1036
e551498e
GH		 1037#define HAVE_CHARDEV_TTY 1
1038
6f97dba0 1039typedef struct {
093d3a20
AL		 1040 GIOChannel *fd;
1041 guint fd_tag;
6f97dba0
AL		 1042 int connected;
1043 int polling;
1044 int read_bytes;
8aa33caf 1045 guint timer_tag;
6f97dba0
AL		 1046} PtyCharDriver;
1047
1048static void pty_chr_update_read_handler(CharDriverState *chr);
1049static void pty_chr_state(CharDriverState *chr, int connected);
1050
8aa33caf
AL		 1051static gboolean pty_chr_timer(gpointer opaque)
1052{
1053 struct CharDriverState *chr = opaque;
1054 PtyCharDriver *s = chr->opaque;
1055
1056 if (s->connected) {
1057 goto out;
1058 }
1059 if (s->polling) {
1060 /* If we arrive here without polling being cleared due
1061 * read returning -EIO, then we are (re-)connected */
1062 pty_chr_state(chr, 1);
1063 goto out;
1064 }
1065
1066 /* Next poll ... */
1067 pty_chr_update_read_handler(chr);
1068
1069out:
1070 return FALSE;
1071}
1072
1073static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1074{
1075 PtyCharDriver *s = chr->opaque;
1076
1077 if (s->timer_tag) {
1078 g_source_remove(s->timer_tag);
1079 s->timer_tag = 0;
1080 }
1081
1082 if (ms == 1000) {
1083 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1084 } else {
1085 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1086 }
1087}
1088
6f97dba0
AL		 1089static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1090{
1091 PtyCharDriver *s = chr->opaque;
1092
1093 if (!s->connected) {
1094 /* guest sends data, check for (re-)connect */
1095 pty_chr_update_read_handler(chr);
1096 return 0;
1097 }
093d3a20 1098 return io_channel_send_all(s->fd, buf, len);
6f97dba0
AL		 1099}
1100
e6a87ed8
AL		 1101static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1102{
1103 PtyCharDriver *s = chr->opaque;
1104 return g_io_create_watch(s->fd, cond);
1105}
1106
6f97dba0
AL		 1107static int pty_chr_read_poll(void *opaque)
1108{
1109 CharDriverState *chr = opaque;
1110 PtyCharDriver *s = chr->opaque;
1111
909cda12 1112 s->read_bytes = qemu_chr_be_can_write(chr);
6f97dba0
AL		 1113 return s->read_bytes;
1114}
1115
093d3a20 1116static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 1117{
1118 CharDriverState *chr = opaque;
1119 PtyCharDriver *s = chr->opaque;
093d3a20 1120 gsize size, len;
9bd7854e 1121 uint8_t buf[READ_BUF_LEN];
093d3a20 1122 GIOStatus status;
6f97dba0
AL		 1123
1124 len = sizeof(buf);
1125 if (len > s->read_bytes)
1126 len = s->read_bytes;
1127 if (len == 0)
093d3a20
AL		 1128 return FALSE;
1129 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1130 if (status != G_IO_STATUS_NORMAL) {
6f97dba0 1131 pty_chr_state(chr, 0);
093d3a20
AL		 1132 return FALSE;
1133 } else {
6f97dba0 1134 pty_chr_state(chr, 1);
fa5efccb 1135 qemu_chr_be_write(chr, buf, size);
6f97dba0 1136 }
093d3a20 1137 return TRUE;
6f97dba0
AL		 1138}
1139
1140static void pty_chr_update_read_handler(CharDriverState *chr)
1141{
1142 PtyCharDriver *s = chr->opaque;
1143
093d3a20
AL		 1144 if (s->fd_tag) {
1145 g_source_remove(s->fd_tag);
1146 }
1147
1148 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
6f97dba0
AL		 1149 s->polling = 1;
1150 /*
1151 * Short timeout here: just need wait long enougth that qemu makes
1152 * it through the poll loop once. When reconnected we want a
1153 * short timeout so we notice it almost instantly. Otherwise
1154 * read() gives us -EIO instantly, making pty_chr_state() reset the
1155 * timeout to the normal (much longer) poll interval before the
1156 * timer triggers.
1157 */
8aa33caf 1158 pty_chr_rearm_timer(chr, 10);
6f97dba0
AL		 1159}
1160
1161static void pty_chr_state(CharDriverState *chr, int connected)
1162{
1163 PtyCharDriver *s = chr->opaque;
1164
1165 if (!connected) {
093d3a20
AL		 1166 g_source_remove(s->fd_tag);
1167 s->fd_tag = 0;
6f97dba0
AL		 1168 s->connected = 0;
1169 s->polling = 0;
1170 /* (re-)connect poll interval for idle guests: once per second.
1171 * We check more frequently in case the guests sends data to
1172 * the virtual device linked to our pty. */
8aa33caf 1173 pty_chr_rearm_timer(chr, 1000);
6f97dba0
AL		 1174 } else {
1175 if (!s->connected)
fee204fd 1176 qemu_chr_be_generic_open(chr);
6f97dba0
AL		 1177 s->connected = 1;
1178 }
1179}
1180
6f97dba0
AL		 1181
1182static void pty_chr_close(struct CharDriverState *chr)
1183{
1184 PtyCharDriver *s = chr->opaque;
093d3a20 1185 int fd;
6f97dba0 1186
093d3a20
AL		 1187 if (s->fd_tag) {
1188 g_source_remove(s->fd_tag);
1189 }
1190 fd = g_io_channel_unix_get_fd(s->fd);
1191 g_io_channel_unref(s->fd);
1192 close(fd);
8aa33caf
AL		 1193 if (s->timer_tag) {
1194 g_source_remove(s->timer_tag);
1195 }
7267c094 1196 g_free(s);
a425d23f 1197 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1198}
1199
e68c5958
GH		 1200static CharDriverState *qemu_chr_open_pty(const char *id,
1201 ChardevReturn *ret)
6f97dba0
AL		 1202{
1203 CharDriverState *chr;
1204 PtyCharDriver *s;
1205 struct termios tty;
e68c5958 1206 int master_fd, slave_fd;
c5e97233 1207#if defined(__OpenBSD__) || defined(__DragonFly__)
6f97dba0
AL		 1208 char pty_name[PATH_MAX];
1209#define q_ptsname(x) pty_name
1210#else
1211 char *pty_name = NULL;
1212#define q_ptsname(x) ptsname(x)
1213#endif
1214
a4e26048 1215 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1f51470d 1216 return NULL;
6f97dba0
AL		 1217 }
1218
1219 /* Set raw attributes on the pty. */
c3b972c3 1220 tcgetattr(slave_fd, &tty);
6f97dba0
AL		 1221 cfmakeraw(&tty);
1222 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1223 close(slave_fd);
1224
a4e26048
MA		 1225 chr = g_malloc0(sizeof(CharDriverState));
1226
e68c5958
GH		 1227 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1228 ret->pty = g_strdup(q_ptsname(master_fd));
1229 ret->has_pty = true;
58650218 1230
e68c5958
GH		 1231 fprintf(stderr, "char device redirected to %s (label %s)\n",
1232 q_ptsname(master_fd), id);
6f97dba0 1233
a4e26048 1234 s = g_malloc0(sizeof(PtyCharDriver));
6f97dba0
AL		 1235 chr->opaque = s;
1236 chr->chr_write = pty_chr_write;
1237 chr->chr_update_read_handler = pty_chr_update_read_handler;
1238 chr->chr_close = pty_chr_close;
e6a87ed8 1239 chr->chr_add_watch = pty_chr_add_watch;
6f97dba0 1240
093d3a20 1241 s->fd = io_channel_from_fd(master_fd);
8aa33caf 1242 s->timer_tag = 0;
6f97dba0 1243
1f51470d 1244 return chr;
6f97dba0
AL		 1245}
1246
1247static void tty_serial_init(int fd, int speed,
1248 int parity, int data_bits, int stop_bits)
1249{
1250 struct termios tty;
1251 speed_t spd;
1252
1253#if 0
1254 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1255 speed, parity, data_bits, stop_bits);
1256#endif
1257 tcgetattr (fd, &tty);
1258
45eea13b
SW		 1259#define check_speed(val) if (speed <= val) { spd = B##val; break; }
1260 speed = speed * 10 / 11;
1261 do {
1262 check_speed(50);
1263 check_speed(75);
1264 check_speed(110);
1265 check_speed(134);
1266 check_speed(150);
1267 check_speed(200);
1268 check_speed(300);
1269 check_speed(600);
1270 check_speed(1200);
1271 check_speed(1800);
1272 check_speed(2400);
1273 check_speed(4800);
1274 check_speed(9600);
1275 check_speed(19200);
1276 check_speed(38400);
1277 /* Non-Posix values follow. They may be unsupported on some systems. */
1278 check_speed(57600);
1279 check_speed(115200);
1280#ifdef B230400
1281 check_speed(230400);
1282#endif
1283#ifdef B460800
1284 check_speed(460800);
1285#endif
1286#ifdef B500000
1287 check_speed(500000);
1288#endif
1289#ifdef B576000
1290 check_speed(576000);
1291#endif
1292#ifdef B921600
1293 check_speed(921600);
1294#endif
1295#ifdef B1000000
1296 check_speed(1000000);
1297#endif
1298#ifdef B1152000
1299 check_speed(1152000);
1300#endif
1301#ifdef B1500000
1302 check_speed(1500000);
1303#endif
1304#ifdef B2000000
1305 check_speed(2000000);
1306#endif
1307#ifdef B2500000
1308 check_speed(2500000);
1309#endif
1310#ifdef B3000000
1311 check_speed(3000000);
1312#endif
1313#ifdef B3500000
1314 check_speed(3500000);
1315#endif
1316#ifdef B4000000
1317 check_speed(4000000);
1318#endif
6f97dba0 1319 spd = B115200;
45eea13b 1320 } while (0);
6f97dba0
AL		 1321
1322 cfsetispeed(&tty, spd);
1323 cfsetospeed(&tty, spd);
1324
1325 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1326 |INLCR|IGNCR|ICRNL|IXON);
1327 tty.c_oflag |= OPOST;
1328 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1329 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1330 switch(data_bits) {
1331 default:
1332 case 8:
1333 tty.c_cflag |= CS8;
1334 break;
1335 case 7:
1336 tty.c_cflag |= CS7;
1337 break;
1338 case 6:
1339 tty.c_cflag |= CS6;
1340 break;
1341 case 5:
1342 tty.c_cflag |= CS5;
1343 break;
1344 }
1345 switch(parity) {
1346 default:
1347 case 'N':
1348 break;
1349 case 'E':
1350 tty.c_cflag |= PARENB;
1351 break;
1352 case 'O':
1353 tty.c_cflag |= PARENB | PARODD;
1354 break;
1355 }
1356 if (stop_bits == 2)
1357 tty.c_cflag |= CSTOPB;
1358
1359 tcsetattr (fd, TCSANOW, &tty);
1360}
1361
1362static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1363{
1364 FDCharDriver *s = chr->opaque;
1365
1366 switch(cmd) {
1367 case CHR_IOCTL_SERIAL_SET_PARAMS:
1368 {
1369 QEMUSerialSetParams *ssp = arg;
a29753f8
AL		 1370 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1371 ssp->speed, ssp->parity,
6f97dba0
AL		 1372 ssp->data_bits, ssp->stop_bits);
1373 }
1374 break;
1375 case CHR_IOCTL_SERIAL_SET_BREAK:
1376 {
1377 int enable = *(int *)arg;
a29753f8
AL		 1378 if (enable) {
1379 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1380 }
6f97dba0
AL		 1381 }
1382 break;
1383 case CHR_IOCTL_SERIAL_GET_TIOCM:
1384 {
1385 int sarg = 0;
1386 int *targ = (int *)arg;
a29753f8 1387 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
6f97dba0 1388 *targ = 0;
b4abdfa4 1389 if (sarg & TIOCM_CTS)
6f97dba0 1390 *targ |= CHR_TIOCM_CTS;
b4abdfa4 1391 if (sarg & TIOCM_CAR)
6f97dba0 1392 *targ |= CHR_TIOCM_CAR;
b4abdfa4 1393 if (sarg & TIOCM_DSR)
6f97dba0 1394 *targ |= CHR_TIOCM_DSR;
b4abdfa4 1395 if (sarg & TIOCM_RI)
6f97dba0 1396 *targ |= CHR_TIOCM_RI;
b4abdfa4 1397 if (sarg & TIOCM_DTR)
6f97dba0 1398 *targ |= CHR_TIOCM_DTR;
b4abdfa4 1399 if (sarg & TIOCM_RTS)
6f97dba0
AL		 1400 *targ |= CHR_TIOCM_RTS;
1401 }
1402 break;
1403 case CHR_IOCTL_SERIAL_SET_TIOCM:
1404 {
1405 int sarg = *(int *)arg;
1406 int targ = 0;
a29753f8 1407 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
b4abdfa4
AJ		 1408 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1409 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1410 if (sarg & CHR_TIOCM_CTS)
1411 targ |= TIOCM_CTS;
1412 if (sarg & CHR_TIOCM_CAR)
1413 targ |= TIOCM_CAR;
1414 if (sarg & CHR_TIOCM_DSR)
1415 targ |= TIOCM_DSR;
1416 if (sarg & CHR_TIOCM_RI)
1417 targ |= TIOCM_RI;
1418 if (sarg & CHR_TIOCM_DTR)
6f97dba0 1419 targ |= TIOCM_DTR;
b4abdfa4 1420 if (sarg & CHR_TIOCM_RTS)
6f97dba0 1421 targ |= TIOCM_RTS;
a29753f8 1422 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
6f97dba0
AL		 1423 }
1424 break;
1425 default:
1426 return -ENOTSUP;
1427 }
1428 return 0;
1429}
1430
4266a134
DA		 1431static void qemu_chr_close_tty(CharDriverState *chr)
1432{
1433 FDCharDriver *s = chr->opaque;
1434 int fd = -1;
1435
1436 if (s) {
a29753f8 1437 fd = g_io_channel_unix_get_fd(s->fd_in);
4266a134
DA		 1438 }
1439
1440 fd_chr_close(chr);
1441
1442 if (fd >= 0) {
1443 close(fd);
1444 }
1445}
1446
d59044ef
GH		 1447static CharDriverState *qemu_chr_open_tty_fd(int fd)
1448{
1449 CharDriverState *chr;
1450
1451 tty_serial_init(fd, 115200, 'N', 8, 1);
1452 chr = qemu_chr_open_fd(fd, fd);
1453 chr->chr_ioctl = tty_serial_ioctl;
1454 chr->chr_close = qemu_chr_close_tty;
1455 return chr;
1456}
6f97dba0
AL		 1457#endif /* __linux__ || __sun__ */
1458
1459#if defined(__linux__)
e551498e
GH		 1460
1461#define HAVE_CHARDEV_PARPORT 1
1462
6f97dba0
AL		 1463typedef struct {
1464 int fd;
1465 int mode;
1466} ParallelCharDriver;
1467
1468static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1469{
1470 if (s->mode != mode) {
1471 int m = mode;
1472 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1473 return 0;
1474 s->mode = mode;
1475 }
1476 return 1;
1477}
1478
1479static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1480{
1481 ParallelCharDriver *drv = chr->opaque;
1482 int fd = drv->fd;
1483 uint8_t b;
1484
1485 switch(cmd) {
1486 case CHR_IOCTL_PP_READ_DATA:
1487 if (ioctl(fd, PPRDATA, &b) < 0)
1488 return -ENOTSUP;
1489 *(uint8_t *)arg = b;
1490 break;
1491 case CHR_IOCTL_PP_WRITE_DATA:
1492 b = *(uint8_t *)arg;
1493 if (ioctl(fd, PPWDATA, &b) < 0)
1494 return -ENOTSUP;
1495 break;
1496 case CHR_IOCTL_PP_READ_CONTROL:
1497 if (ioctl(fd, PPRCONTROL, &b) < 0)
1498 return -ENOTSUP;
1499 /* Linux gives only the lowest bits, and no way to know data
1500 direction! For better compatibility set the fixed upper
1501 bits. */
1502 *(uint8_t *)arg = b | 0xc0;
1503 break;
1504 case CHR_IOCTL_PP_WRITE_CONTROL:
1505 b = *(uint8_t *)arg;
1506 if (ioctl(fd, PPWCONTROL, &b) < 0)
1507 return -ENOTSUP;
1508 break;
1509 case CHR_IOCTL_PP_READ_STATUS:
1510 if (ioctl(fd, PPRSTATUS, &b) < 0)
1511 return -ENOTSUP;
1512 *(uint8_t *)arg = b;
1513 break;
1514 case CHR_IOCTL_PP_DATA_DIR:
1515 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1516 return -ENOTSUP;
1517 break;
1518 case CHR_IOCTL_PP_EPP_READ_ADDR:
1519 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1520 struct ParallelIOArg *parg = arg;
1521 int n = read(fd, parg->buffer, parg->count);
1522 if (n != parg->count) {
1523 return -EIO;
1524 }
1525 }
1526 break;
1527 case CHR_IOCTL_PP_EPP_READ:
1528 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1529 struct ParallelIOArg *parg = arg;
1530 int n = read(fd, parg->buffer, parg->count);
1531 if (n != parg->count) {
1532 return -EIO;
1533 }
1534 }
1535 break;
1536 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1537 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1538 struct ParallelIOArg *parg = arg;
1539 int n = write(fd, parg->buffer, parg->count);
1540 if (n != parg->count) {
1541 return -EIO;
1542 }
1543 }
1544 break;
1545 case CHR_IOCTL_PP_EPP_WRITE:
1546 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1547 struct ParallelIOArg *parg = arg;
1548 int n = write(fd, parg->buffer, parg->count);
1549 if (n != parg->count) {
1550 return -EIO;
1551 }
1552 }
1553 break;
1554 default:
1555 return -ENOTSUP;
1556 }
1557 return 0;
1558}
1559
1560static void pp_close(CharDriverState *chr)
1561{
1562 ParallelCharDriver *drv = chr->opaque;
1563 int fd = drv->fd;
1564
1565 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1566 ioctl(fd, PPRELEASE);
1567 close(fd);
7267c094 1568 g_free(drv);
a425d23f 1569 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1570}
1571
88a946d3 1572static CharDriverState *qemu_chr_open_pp_fd(int fd)
6f97dba0
AL		 1573{
1574 CharDriverState *chr;
1575 ParallelCharDriver *drv;
6f97dba0
AL		 1576
1577 if (ioctl(fd, PPCLAIM) < 0) {
1578 close(fd);
1f51470d 1579 return NULL;
6f97dba0
AL		 1580 }
1581
7267c094 1582 drv = g_malloc0(sizeof(ParallelCharDriver));
6f97dba0
AL		 1583 drv->fd = fd;
1584 drv->mode = IEEE1284_MODE_COMPAT;
1585
7267c094 1586 chr = g_malloc0(sizeof(CharDriverState));
6f97dba0
AL		 1587 chr->chr_write = null_chr_write;
1588 chr->chr_ioctl = pp_ioctl;
1589 chr->chr_close = pp_close;
1590 chr->opaque = drv;
1591
fee204fd 1592 qemu_chr_be_generic_open(chr);
6f97dba0 1593
1f51470d 1594 return chr;
6f97dba0
AL		 1595}
1596#endif /* __linux__ */
1597
a167ba50 1598#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
e551498e
GH		 1599
1600#define HAVE_CHARDEV_PARPORT 1
1601
6972f935
BS		 1602static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1603{
e0efb993 1604 int fd = (int)(intptr_t)chr->opaque;
6972f935
BS		 1605 uint8_t b;
1606
1607 switch(cmd) {
1608 case CHR_IOCTL_PP_READ_DATA:
1609 if (ioctl(fd, PPIGDATA, &b) < 0)
1610 return -ENOTSUP;
1611 *(uint8_t *)arg = b;
1612 break;
1613 case CHR_IOCTL_PP_WRITE_DATA:
1614 b = *(uint8_t *)arg;
1615 if (ioctl(fd, PPISDATA, &b) < 0)
1616 return -ENOTSUP;
1617 break;
1618 case CHR_IOCTL_PP_READ_CONTROL:
1619 if (ioctl(fd, PPIGCTRL, &b) < 0)
1620 return -ENOTSUP;
1621 *(uint8_t *)arg = b;
1622 break;
1623 case CHR_IOCTL_PP_WRITE_CONTROL:
1624 b = *(uint8_t *)arg;
1625 if (ioctl(fd, PPISCTRL, &b) < 0)
1626 return -ENOTSUP;
1627 break;
1628 case CHR_IOCTL_PP_READ_STATUS:
1629 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1630 return -ENOTSUP;
1631 *(uint8_t *)arg = b;
1632 break;
1633 default:
1634 return -ENOTSUP;
1635 }
1636 return 0;
1637}
1638
88a946d3 1639static CharDriverState *qemu_chr_open_pp_fd(int fd)
6972f935
BS		 1640{
1641 CharDriverState *chr;
6972f935 1642
7267c094 1643 chr = g_malloc0(sizeof(CharDriverState));
e0efb993 1644 chr->opaque = (void *)(intptr_t)fd;
6972f935
BS		 1645 chr->chr_write = null_chr_write;
1646 chr->chr_ioctl = pp_ioctl;
1f51470d 1647 return chr;
6972f935
BS		 1648}
1649#endif
1650
6f97dba0
AL		 1651#else /* _WIN32 */
1652
1653typedef struct {
1654 int max_size;
1655 HANDLE hcom, hrecv, hsend;
1656 OVERLAPPED orecv, osend;
1657 BOOL fpipe;
1658 DWORD len;
1659} WinCharState;
1660
db418a0a
FC		 1661typedef struct {
1662 HANDLE hStdIn;
1663 HANDLE hInputReadyEvent;
1664 HANDLE hInputDoneEvent;
1665 HANDLE hInputThread;
1666 uint8_t win_stdio_buf;
1667} WinStdioCharState;
1668
6f97dba0
AL		 1669#define NSENDBUF 2048
1670#define NRECVBUF 2048
1671#define MAXCONNECT 1
1672#define NTIMEOUT 5000
1673
1674static int win_chr_poll(void *opaque);
1675static int win_chr_pipe_poll(void *opaque);
1676
1677static void win_chr_close(CharDriverState *chr)
1678{
1679 WinCharState *s = chr->opaque;
1680
1681 if (s->hsend) {
1682 CloseHandle(s->hsend);
1683 s->hsend = NULL;
1684 }
1685 if (s->hrecv) {
1686 CloseHandle(s->hrecv);
1687 s->hrecv = NULL;
1688 }
1689 if (s->hcom) {
1690 CloseHandle(s->hcom);
1691 s->hcom = NULL;
1692 }
1693 if (s->fpipe)
1694 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1695 else
1696 qemu_del_polling_cb(win_chr_poll, chr);
793cbfb5 1697
a425d23f 1698 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 1699}
1700
1701static int win_chr_init(CharDriverState *chr, const char *filename)
1702{
1703 WinCharState *s = chr->opaque;
1704 COMMCONFIG comcfg;
1705 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1706 COMSTAT comstat;
1707 DWORD size;
1708 DWORD err;
1709
1710 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1711 if (!s->hsend) {
1712 fprintf(stderr, "Failed CreateEvent\n");
1713 goto fail;
1714 }
1715 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1716 if (!s->hrecv) {
1717 fprintf(stderr, "Failed CreateEvent\n");
1718 goto fail;
1719 }
1720
1721 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1722 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1723 if (s->hcom == INVALID_HANDLE_VALUE) {
1724 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1725 s->hcom = NULL;
1726 goto fail;
1727 }
1728
1729 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1730 fprintf(stderr, "Failed SetupComm\n");
1731 goto fail;
1732 }
1733
1734 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1735 size = sizeof(COMMCONFIG);
1736 GetDefaultCommConfig(filename, &comcfg, &size);
1737 comcfg.dcb.DCBlength = sizeof(DCB);
1738 CommConfigDialog(filename, NULL, &comcfg);
1739
1740 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1741 fprintf(stderr, "Failed SetCommState\n");
1742 goto fail;
1743 }
1744
1745 if (!SetCommMask(s->hcom, EV_ERR)) {
1746 fprintf(stderr, "Failed SetCommMask\n");
1747 goto fail;
1748 }
1749
1750 cto.ReadIntervalTimeout = MAXDWORD;
1751 if (!SetCommTimeouts(s->hcom, &cto)) {
1752 fprintf(stderr, "Failed SetCommTimeouts\n");
1753 goto fail;
1754 }
1755
1756 if (!ClearCommError(s->hcom, &err, &comstat)) {
1757 fprintf(stderr, "Failed ClearCommError\n");
1758 goto fail;
1759 }
1760 qemu_add_polling_cb(win_chr_poll, chr);
1761 return 0;
1762
1763 fail:
1764 win_chr_close(chr);
1765 return -1;
1766}
1767
1768static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1769{
1770 WinCharState *s = chr->opaque;
1771 DWORD len, ret, size, err;
1772
1773 len = len1;
1774 ZeroMemory(&s->osend, sizeof(s->osend));
1775 s->osend.hEvent = s->hsend;
1776 while (len > 0) {
1777 if (s->hsend)
1778 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1779 else
1780 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1781 if (!ret) {
1782 err = GetLastError();
1783 if (err == ERROR_IO_PENDING) {
1784 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1785 if (ret) {
1786 buf += size;
1787 len -= size;
1788 } else {
1789 break;
1790 }
1791 } else {
1792 break;
1793 }
1794 } else {
1795 buf += size;
1796 len -= size;
1797 }
1798 }
1799 return len1 - len;
1800}
1801
1802static int win_chr_read_poll(CharDriverState *chr)
1803{
1804 WinCharState *s = chr->opaque;
1805
909cda12 1806 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 1807 return s->max_size;
1808}
1809
1810static void win_chr_readfile(CharDriverState *chr)
1811{
1812 WinCharState *s = chr->opaque;
1813 int ret, err;
9bd7854e 1814 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 1815 DWORD size;
1816
1817 ZeroMemory(&s->orecv, sizeof(s->orecv));
1818 s->orecv.hEvent = s->hrecv;
1819 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1820 if (!ret) {
1821 err = GetLastError();
1822 if (err == ERROR_IO_PENDING) {
1823 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1824 }
1825 }
1826
1827 if (size > 0) {
fa5efccb 1828 qemu_chr_be_write(chr, buf, size);
6f97dba0
AL		 1829 }
1830}
1831
1832static void win_chr_read(CharDriverState *chr)
1833{
1834 WinCharState *s = chr->opaque;
1835
1836 if (s->len > s->max_size)
1837 s->len = s->max_size;
1838 if (s->len == 0)
1839 return;
1840
1841 win_chr_readfile(chr);
1842}
1843
1844static int win_chr_poll(void *opaque)
1845{
1846 CharDriverState *chr = opaque;
1847 WinCharState *s = chr->opaque;
1848 COMSTAT status;
1849 DWORD comerr;
1850
1851 ClearCommError(s->hcom, &comerr, &status);
1852 if (status.cbInQue > 0) {
1853 s->len = status.cbInQue;
1854 win_chr_read_poll(chr);
1855 win_chr_read(chr);
1856 return 1;
1857 }
1858 return 0;
1859}
1860
d59044ef 1861static CharDriverState *qemu_chr_open_win_path(const char *filename)
6f97dba0
AL		 1862{
1863 CharDriverState *chr;
1864 WinCharState *s;
1865
7267c094
AL		 1866 chr = g_malloc0(sizeof(CharDriverState));
1867 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1868 chr->opaque = s;
1869 chr->chr_write = win_chr_write;
1870 chr->chr_close = win_chr_close;
1871
1872 if (win_chr_init(chr, filename) < 0) {
2e02e18b
SW		 1873 g_free(s);
1874 g_free(chr);
1f51470d 1875 return NULL;
6f97dba0 1876 }
fee204fd 1877 qemu_chr_be_generic_open(chr);
1f51470d 1878 return chr;
6f97dba0
AL		 1879}
1880
1881static int win_chr_pipe_poll(void *opaque)
1882{
1883 CharDriverState *chr = opaque;
1884 WinCharState *s = chr->opaque;
1885 DWORD size;
1886
1887 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1888 if (size > 0) {
1889 s->len = size;
1890 win_chr_read_poll(chr);
1891 win_chr_read(chr);
1892 return 1;
1893 }
1894 return 0;
1895}
1896
1897static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1898{
1899 WinCharState *s = chr->opaque;
1900 OVERLAPPED ov;
1901 int ret;
1902 DWORD size;
1903 char openname[256];
1904
1905 s->fpipe = TRUE;
1906
1907 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1908 if (!s->hsend) {
1909 fprintf(stderr, "Failed CreateEvent\n");
1910 goto fail;
1911 }
1912 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1913 if (!s->hrecv) {
1914 fprintf(stderr, "Failed CreateEvent\n");
1915 goto fail;
1916 }
1917
1918 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1919 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1920 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1921 PIPE_WAIT,
1922 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1923 if (s->hcom == INVALID_HANDLE_VALUE) {
1924 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1925 s->hcom = NULL;
1926 goto fail;
1927 }
1928
1929 ZeroMemory(&ov, sizeof(ov));
1930 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1931 ret = ConnectNamedPipe(s->hcom, &ov);
1932 if (ret) {
1933 fprintf(stderr, "Failed ConnectNamedPipe\n");
1934 goto fail;
1935 }
1936
1937 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1938 if (!ret) {
1939 fprintf(stderr, "Failed GetOverlappedResult\n");
1940 if (ov.hEvent) {
1941 CloseHandle(ov.hEvent);
1942 ov.hEvent = NULL;
1943 }
1944 goto fail;
1945 }
1946
1947 if (ov.hEvent) {
1948 CloseHandle(ov.hEvent);
1949 ov.hEvent = NULL;
1950 }
1951 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1952 return 0;
1953
1954 fail:
1955 win_chr_close(chr);
1956 return -1;
1957}
1958
1959
548cbb36 1960static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
6f97dba0 1961{
548cbb36 1962 const char *filename = opts->device;
6f97dba0
AL		 1963 CharDriverState *chr;
1964 WinCharState *s;
1965
7267c094
AL		 1966 chr = g_malloc0(sizeof(CharDriverState));
1967 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1968 chr->opaque = s;
1969 chr->chr_write = win_chr_write;
1970 chr->chr_close = win_chr_close;
1971
1972 if (win_chr_pipe_init(chr, filename) < 0) {
2e02e18b
SW		 1973 g_free(s);
1974 g_free(chr);
1f51470d 1975 return NULL;
6f97dba0 1976 }
fee204fd 1977 qemu_chr_be_generic_open(chr);
1f51470d 1978 return chr;
6f97dba0
AL		 1979}
1980
1f51470d 1981static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
6f97dba0
AL		 1982{
1983 CharDriverState *chr;
1984 WinCharState *s;
1985
7267c094
AL		 1986 chr = g_malloc0(sizeof(CharDriverState));
1987 s = g_malloc0(sizeof(WinCharState));
6f97dba0
AL		 1988 s->hcom = fd_out;
1989 chr->opaque = s;
1990 chr->chr_write = win_chr_write;
fee204fd 1991 qemu_chr_be_generic_open(chr);
1f51470d 1992 return chr;
6f97dba0
AL		 1993}
1994
d9ac374f 1995static CharDriverState *qemu_chr_open_win_con(void)
6f97dba0 1996{
1f51470d 1997 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
6f97dba0
AL		 1998}
1999
db418a0a
FC		 2000static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
2001{
2002 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
2003 DWORD dwSize;
2004 int len1;
2005
2006 len1 = len;
2007
2008 while (len1 > 0) {
2009 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
2010 break;
2011 }
2012 buf += dwSize;
2013 len1 -= dwSize;
2014 }
2015
2016 return len - len1;
2017}
2018
2019static void win_stdio_wait_func(void *opaque)
2020{
2021 CharDriverState *chr = opaque;
2022 WinStdioCharState *stdio = chr->opaque;
2023 INPUT_RECORD buf[4];
2024 int ret;
2025 DWORD dwSize;
2026 int i;
2027
2028 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2029 &dwSize);
2030
2031 if (!ret) {
2032 /* Avoid error storm */
2033 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2034 return;
2035 }
2036
2037 for (i = 0; i < dwSize; i++) {
2038 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2039
2040 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2041 int j;
2042 if (kev->uChar.AsciiChar != 0) {
2043 for (j = 0; j < kev->wRepeatCount; j++) {
2044 if (qemu_chr_be_can_write(chr)) {
2045 uint8_t c = kev->uChar.AsciiChar;
2046 qemu_chr_be_write(chr, &c, 1);
2047 }
2048 }
2049 }
2050 }
2051 }
2052}
2053
2054static DWORD WINAPI win_stdio_thread(LPVOID param)
2055{
2056 CharDriverState *chr = param;
2057 WinStdioCharState *stdio = chr->opaque;
2058 int ret;
2059 DWORD dwSize;
2060
2061 while (1) {
2062
2063 /* Wait for one byte */
2064 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2065
2066 /* Exit in case of error, continue if nothing read */
2067 if (!ret) {
2068 break;
2069 }
2070 if (!dwSize) {
2071 continue;
2072 }
2073
2074 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2075 if (stdio->win_stdio_buf == '\r') {
2076 continue;
2077 }
2078
2079 /* Signal the main thread and wait until the byte was eaten */
2080 if (!SetEvent(stdio->hInputReadyEvent)) {
2081 break;
2082 }
2083 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2084 != WAIT_OBJECT_0) {
2085 break;
2086 }
2087 }
2088
2089 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2090 return 0;
2091}
2092
2093static void win_stdio_thread_wait_func(void *opaque)
2094{
2095 CharDriverState *chr = opaque;
2096 WinStdioCharState *stdio = chr->opaque;
2097
2098 if (qemu_chr_be_can_write(chr)) {
2099 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2100 }
2101
2102 SetEvent(stdio->hInputDoneEvent);
2103}
2104
2105static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2106{
2107 WinStdioCharState *stdio = chr->opaque;
2108 DWORD dwMode = 0;
2109
2110 GetConsoleMode(stdio->hStdIn, &dwMode);
2111
2112 if (echo) {
2113 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2114 } else {
2115 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2116 }
2117}
2118
2119static void win_stdio_close(CharDriverState *chr)
2120{
2121 WinStdioCharState *stdio = chr->opaque;
2122
2123 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2124 CloseHandle(stdio->hInputReadyEvent);
2125 }
2126 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2127 CloseHandle(stdio->hInputDoneEvent);
2128 }
2129 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2130 TerminateThread(stdio->hInputThread, 0);
2131 }
2132
2133 g_free(chr->opaque);
2134 g_free(chr);
db418a0a
FC		 2135}
2136
7c358031 2137static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
db418a0a
FC		 2138{
2139 CharDriverState *chr;
2140 WinStdioCharState *stdio;
2141 DWORD dwMode;
2142 int is_console = 0;
2143
db418a0a
FC		 2144 chr = g_malloc0(sizeof(CharDriverState));
2145 stdio = g_malloc0(sizeof(WinStdioCharState));
2146
2147 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2148 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2149 fprintf(stderr, "cannot open stdio: invalid handle\n");
2150 exit(1);
2151 }
2152
2153 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2154
2155 chr->opaque = stdio;
2156 chr->chr_write = win_stdio_write;
2157 chr->chr_close = win_stdio_close;
2158
ed7a1540
AL		 2159 if (is_console) {
2160 if (qemu_add_wait_object(stdio->hStdIn,
2161 win_stdio_wait_func, chr)) {
2162 fprintf(stderr, "qemu_add_wait_object: failed\n");
2163 }
2164 } else {
2165 DWORD dwId;
2166
2167 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2168 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2169 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2170 chr, 0, &dwId);
2171
2172 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2173 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2174 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2175 fprintf(stderr, "cannot create stdio thread or event\n");
2176 exit(1);
2177 }
2178 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2179 win_stdio_thread_wait_func, chr)) {
2180 fprintf(stderr, "qemu_add_wait_object: failed\n");
db418a0a
FC		 2181 }
2182 }
2183
2184 dwMode |= ENABLE_LINE_INPUT;
2185
ed7a1540 2186 if (is_console) {
db418a0a
FC		 2187 /* set the terminal in raw mode */
2188 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2189 dwMode |= ENABLE_PROCESSED_INPUT;
2190 }
2191
2192 SetConsoleMode(stdio->hStdIn, dwMode);
2193
2194 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2195 qemu_chr_fe_set_echo(chr, false);
2196
1f51470d 2197 return chr;
db418a0a 2198}
6f97dba0
AL		 2199#endif /* !_WIN32 */
2200
5ab8211b 2201
6f97dba0
AL		 2202/***********************************************************/
2203/* UDP Net console */
2204
2205typedef struct {
2206 int fd;
76a9644b
AL		 2207 GIOChannel *chan;
2208 guint tag;
9bd7854e 2209 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2210 int bufcnt;
2211 int bufptr;
2212 int max_size;
2213} NetCharDriver;
2214
2215static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2216{
2217 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2218 gsize bytes_written;
2219 GIOStatus status;
2220
2221 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2222 if (status == G_IO_STATUS_EOF) {
2223 return 0;
2224 } else if (status != G_IO_STATUS_NORMAL) {
2225 return -1;
2226 }
6f97dba0 2227
76a9644b 2228 return bytes_written;
6f97dba0
AL		 2229}
2230
2231static int udp_chr_read_poll(void *opaque)
2232{
2233 CharDriverState *chr = opaque;
2234 NetCharDriver *s = chr->opaque;
2235
909cda12 2236 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2237
2238 /* If there were any stray characters in the queue process them
2239 * first
2240 */
2241 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2242 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2243 s->bufptr++;
909cda12 2244 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2245 }
2246 return s->max_size;
2247}
2248
76a9644b 2249static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 2250{
2251 CharDriverState *chr = opaque;
2252 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2253 gsize bytes_read = 0;
2254 GIOStatus status;
6f97dba0
AL		 2255
2256 if (s->max_size == 0)
76a9644b
AL		 2257 return FALSE;
2258 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2259 &bytes_read, NULL);
2260 s->bufcnt = bytes_read;
6f97dba0 2261 s->bufptr = s->bufcnt;
76a9644b
AL		 2262 if (status != G_IO_STATUS_NORMAL) {
2263 return FALSE;
2264 }
6f97dba0
AL		 2265
2266 s->bufptr = 0;
2267 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
fa5efccb 2268 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
6f97dba0 2269 s->bufptr++;
909cda12 2270 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0 2271 }
76a9644b
AL		 2272
2273 return TRUE;
6f97dba0
AL		 2274}
2275
2276static void udp_chr_update_read_handler(CharDriverState *chr)
2277{
2278 NetCharDriver *s = chr->opaque;
2279
76a9644b
AL		 2280 if (s->tag) {
2281 g_source_remove(s->tag);
2282 s->tag = 0;
2283 }
2284
2285 if (s->chan) {
2286 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
6f97dba0
AL		 2287 }
2288}
2289
819f56b7
AL		 2290static void udp_chr_close(CharDriverState *chr)
2291{
2292 NetCharDriver *s = chr->opaque;
76a9644b
AL		 2293 if (s->tag) {
2294 g_source_remove(s->tag);
2295 }
2296 if (s->chan) {
2297 g_io_channel_unref(s->chan);
819f56b7
AL		 2298 closesocket(s->fd);
2299 }
7267c094 2300 g_free(s);
a425d23f 2301 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
819f56b7
AL		 2302}
2303
3ecc059d 2304static CharDriverState *qemu_chr_open_udp_fd(int fd)
6f97dba0
AL		 2305{
2306 CharDriverState *chr = NULL;
2307 NetCharDriver *s = NULL;
6f97dba0 2308
7267c094
AL		 2309 chr = g_malloc0(sizeof(CharDriverState));
2310 s = g_malloc0(sizeof(NetCharDriver));
6f97dba0 2311
6f97dba0 2312 s->fd = fd;
76a9644b 2313 s->chan = io_channel_from_socket(s->fd);
6f97dba0
AL		 2314 s->bufcnt = 0;
2315 s->bufptr = 0;
2316 chr->opaque = s;
2317 chr->chr_write = udp_chr_write;
2318 chr->chr_update_read_handler = udp_chr_update_read_handler;
819f56b7 2319 chr->chr_close = udp_chr_close;
1f51470d 2320 return chr;
3ecc059d 2321}
6f97dba0 2322
3ecc059d
GH		 2323static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2324{
2325 Error *local_err = NULL;
2326 int fd = -1;
2327
2328 fd = inet_dgram_opts(opts, &local_err);
2329 if (fd < 0) {
2330 return NULL;
6e1db57b 2331 }
3ecc059d 2332 return qemu_chr_open_udp_fd(fd);
6f97dba0
AL		 2333}
2334
2335/***********************************************************/
2336/* TCP Net console */
2337
2338typedef struct {
2ea5a7af
AL		 2339
2340 GIOChannel *chan, *listen_chan;
2341 guint tag, listen_tag;
6f97dba0
AL		 2342 int fd, listen_fd;
2343 int connected;
2344 int max_size;
2345 int do_telnetopt;
2346 int do_nodelay;
2347 int is_unix;
7d174059 2348 int msgfd;
6f97dba0
AL		 2349} TCPCharDriver;
2350
2ea5a7af 2351static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
6f97dba0
AL		 2352
2353static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2354{
2355 TCPCharDriver *s = chr->opaque;
2356 if (s->connected) {
2ea5a7af 2357 return io_channel_send_all(s->chan, buf, len);
455aa1e0 2358 } else {
6db0fdce 2359 /* XXX: indicate an error ? */
455aa1e0 2360 return len;
6f97dba0
AL		 2361 }
2362}
2363
2364static int tcp_chr_read_poll(void *opaque)
2365{
2366 CharDriverState *chr = opaque;
2367 TCPCharDriver *s = chr->opaque;
2368 if (!s->connected)
2369 return 0;
909cda12 2370 s->max_size = qemu_chr_be_can_write(chr);
6f97dba0
AL		 2371 return s->max_size;
2372}
2373
2374#define IAC 255
2375#define IAC_BREAK 243
2376static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2377 TCPCharDriver *s,
2378 uint8_t *buf, int *size)
2379{
2380 /* Handle any telnet client's basic IAC options to satisfy char by
2381 * char mode with no echo. All IAC options will be removed from
2382 * the buf and the do_telnetopt variable will be used to track the
2383 * state of the width of the IAC information.
2384 *
2385 * IAC commands come in sets of 3 bytes with the exception of the
2386 * "IAC BREAK" command and the double IAC.
2387 */
2388
2389 int i;
2390 int j = 0;
2391
2392 for (i = 0; i < *size; i++) {
2393 if (s->do_telnetopt > 1) {
2394 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2395 /* Double IAC means send an IAC */
2396 if (j != i)
2397 buf[j] = buf[i];
2398 j++;
2399 s->do_telnetopt = 1;
2400 } else {
2401 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2402 /* Handle IAC break commands by sending a serial break */
a425d23f 2403 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
6f97dba0
AL		 2404 s->do_telnetopt++;
2405 }
2406 s->do_telnetopt++;
2407 }
2408 if (s->do_telnetopt >= 4) {
2409 s->do_telnetopt = 1;
2410 }
2411 } else {
2412 if ((unsigned char)buf[i] == IAC) {
2413 s->do_telnetopt = 2;
2414 } else {
2415 if (j != i)
2416 buf[j] = buf[i];
2417 j++;
2418 }
2419 }
2420 }
2421 *size = j;
2422}
2423
7d174059
MM		 2424static int tcp_get_msgfd(CharDriverState *chr)
2425{
2426 TCPCharDriver *s = chr->opaque;
e53f27b9
PB		 2427 int fd = s->msgfd;
2428 s->msgfd = -1;
2429 return fd;
7d174059
MM		 2430}
2431
73bcc2ac 2432#ifndef _WIN32
7d174059
MM		 2433static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2434{
2435 TCPCharDriver *s = chr->opaque;
2436 struct cmsghdr *cmsg;
2437
2438 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2439 int fd;
2440
2441 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2442 cmsg->cmsg_level != SOL_SOCKET ||
2443 cmsg->cmsg_type != SCM_RIGHTS)
2444 continue;
2445
2446 fd = *((int *)CMSG_DATA(cmsg));
2447 if (fd < 0)
2448 continue;
2449
06138651
CB		 2450#ifndef MSG_CMSG_CLOEXEC
2451 qemu_set_cloexec(fd);
2452#endif
7d174059
MM		 2453 if (s->msgfd != -1)
2454 close(s->msgfd);
2455 s->msgfd = fd;
2456 }
2457}
2458
9977c894
MM		 2459static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2460{
2461 TCPCharDriver *s = chr->opaque;
7cba04f6 2462 struct msghdr msg = { NULL, };
9977c894 2463 struct iovec iov[1];
7d174059
MM		 2464 union {
2465 struct cmsghdr cmsg;
2466 char control[CMSG_SPACE(sizeof(int))];
2467 } msg_control;
06138651 2468 int flags = 0;
7d174059 2469 ssize_t ret;
9977c894
MM		 2470
2471 iov[0].iov_base = buf;
2472 iov[0].iov_len = len;
2473
2474 msg.msg_iov = iov;
2475 msg.msg_iovlen = 1;
7d174059
MM		 2476 msg.msg_control = &msg_control;
2477 msg.msg_controllen = sizeof(msg_control);
2478
06138651
CB		 2479#ifdef MSG_CMSG_CLOEXEC
2480 flags |= MSG_CMSG_CLOEXEC;
2481#endif
2482 ret = recvmsg(s->fd, &msg, flags);
2483 if (ret > 0 && s->is_unix) {
7d174059 2484 unix_process_msgfd(chr, &msg);
06138651 2485 }
9977c894 2486
7d174059 2487 return ret;
9977c894
MM		 2488}
2489#else
2490static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2491{
2492 TCPCharDriver *s = chr->opaque;
00aa0040 2493 return qemu_recv(s->fd, buf, len, 0);
9977c894
MM		 2494}
2495#endif
2496
d3cc5bc4
AS		 2497static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2498{
2499 TCPCharDriver *s = chr->opaque;
2500 return g_io_create_watch(s->chan, cond);
2501}
2502
2ea5a7af 2503static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
6f97dba0
AL		 2504{
2505 CharDriverState *chr = opaque;
2506 TCPCharDriver *s = chr->opaque;
9bd7854e 2507 uint8_t buf[READ_BUF_LEN];
6f97dba0
AL		 2508 int len, size;
2509
2ea5a7af
AL		 2510 if (!s->connected || s->max_size <= 0) {
2511 return FALSE;
2512 }
6f97dba0
AL		 2513 len = sizeof(buf);
2514 if (len > s->max_size)
2515 len = s->max_size;
9977c894 2516 size = tcp_chr_recv(chr, (void *)buf, len);
6f97dba0
AL		 2517 if (size == 0) {
2518 /* connection closed */
2519 s->connected = 0;
2ea5a7af
AL		 2520 if (s->listen_chan) {
2521 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
6f97dba0 2522 }
2ea5a7af
AL		 2523 g_source_remove(s->tag);
2524 s->tag = 0;
2525 g_io_channel_unref(s->chan);
2526 s->chan = NULL;
6f97dba0
AL		 2527 closesocket(s->fd);
2528 s->fd = -1;
a425d23f 2529 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2530 } else if (size > 0) {
2531 if (s->do_telnetopt)
2532 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2533 if (size > 0)
fa5efccb 2534 qemu_chr_be_write(chr, buf, size);
6f97dba0 2535 }
2ea5a7af
AL		 2536
2537 return TRUE;
6f97dba0
AL		 2538}
2539
68c18d1c
BS		 2540#ifndef _WIN32
2541CharDriverState *qemu_chr_open_eventfd(int eventfd)
2542{
6cbf4c8c 2543 return qemu_chr_open_fd(eventfd, eventfd);
6cbf4c8c 2544}
68c18d1c 2545#endif
6cbf4c8c 2546
6f97dba0
AL		 2547static void tcp_chr_connect(void *opaque)
2548{
2549 CharDriverState *chr = opaque;
2550 TCPCharDriver *s = chr->opaque;
2551
2552 s->connected = 1;
2ea5a7af
AL		 2553 if (s->chan) {
2554 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
bbdd2ad0 2555 }
fee204fd 2556 qemu_chr_be_generic_open(chr);
6f97dba0
AL		 2557}
2558
2559#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2560static void tcp_chr_telnet_init(int fd)
2561{
2562 char buf[3];
2563 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2564 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2565 send(fd, (char *)buf, 3, 0);
2566 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2567 send(fd, (char *)buf, 3, 0);
2568 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2569 send(fd, (char *)buf, 3, 0);
2570 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2571 send(fd, (char *)buf, 3, 0);
2572}
2573
13661089
DB		 2574static int tcp_chr_add_client(CharDriverState *chr, int fd)
2575{
2576 TCPCharDriver *s = chr->opaque;
2577 if (s->fd != -1)
2578 return -1;
2579
2580 socket_set_nonblock(fd);
2581 if (s->do_nodelay)
2582 socket_set_nodelay(fd);
2583 s->fd = fd;
2ea5a7af
AL		 2584 s->chan = io_channel_from_socket(fd);
2585 g_source_remove(s->listen_tag);
2586 s->listen_tag = 0;
13661089
DB		 2587 tcp_chr_connect(chr);
2588
2589 return 0;
2590}
2591
2ea5a7af 2592static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
6f97dba0
AL		 2593{
2594 CharDriverState *chr = opaque;
2595 TCPCharDriver *s = chr->opaque;
2596 struct sockaddr_in saddr;
2597#ifndef _WIN32
2598 struct sockaddr_un uaddr;
2599#endif
2600 struct sockaddr *addr;
2601 socklen_t len;
2602 int fd;
2603
2604 for(;;) {
2605#ifndef _WIN32
2606 if (s->is_unix) {
2607 len = sizeof(uaddr);
2608 addr = (struct sockaddr *)&uaddr;
2609 } else
2610#endif
2611 {
2612 len = sizeof(saddr);
2613 addr = (struct sockaddr *)&saddr;
2614 }
40ff6d7e 2615 fd = qemu_accept(s->listen_fd, addr, &len);
6f97dba0 2616 if (fd < 0 && errno != EINTR) {
2ea5a7af 2617 return FALSE;
6f97dba0
AL		 2618 } else if (fd >= 0) {
2619 if (s->do_telnetopt)
2620 tcp_chr_telnet_init(fd);
2621 break;
2622 }
2623 }
13661089
DB		 2624 if (tcp_chr_add_client(chr, fd) < 0)
2625 close(fd);
2ea5a7af
AL		 2626
2627 return TRUE;
6f97dba0
AL		 2628}
2629
2630static void tcp_chr_close(CharDriverState *chr)
2631{
2632 TCPCharDriver *s = chr->opaque;
819f56b7 2633 if (s->fd >= 0) {
2ea5a7af
AL		 2634 if (s->tag) {
2635 g_source_remove(s->tag);
2636 }
2637 if (s->chan) {
2638 g_io_channel_unref(s->chan);
2639 }
6f97dba0 2640 closesocket(s->fd);
819f56b7
AL		 2641 }
2642 if (s->listen_fd >= 0) {
2ea5a7af
AL		 2643 if (s->listen_tag) {
2644 g_source_remove(s->listen_tag);
2645 }
2646 if (s->listen_chan) {
2647 g_io_channel_unref(s->listen_chan);
2648 }
6f97dba0 2649 closesocket(s->listen_fd);
819f56b7 2650 }
7267c094 2651 g_free(s);
a425d23f 2652 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
6f97dba0
AL		 2653}
2654
f6bd5d6e
GH		 2655static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2656 bool is_listen, bool is_telnet,
2657 bool is_waitconnect,
2658 Error **errp)
6f97dba0
AL		 2659{
2660 CharDriverState *chr = NULL;
2661 TCPCharDriver *s = NULL;
f6bd5d6e
GH		 2662 char host[NI_MAXHOST], serv[NI_MAXSERV];
2663 const char *left = "", *right = "";
2664 struct sockaddr_storage ss;
2665 socklen_t ss_len = sizeof(ss);
2666
2667 memset(&ss, 0, ss_len);
2668 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2669 error_setg(errp, "getsockname: %s", strerror(errno));
2670 return NULL;
2671 }
2672
2673 chr = g_malloc0(sizeof(CharDriverState));
2674 s = g_malloc0(sizeof(TCPCharDriver));
2675
2676 s->connected = 0;
2677 s->fd = -1;
2678 s->listen_fd = -1;
2679 s->msgfd = -1;
2680
2681 chr->filename = g_malloc(256);
2682 switch (ss.ss_family) {
2683#ifndef _WIN32
2684 case AF_UNIX:
2685 s->is_unix = 1;
2686 snprintf(chr->filename, 256, "unix:%s%s",
2687 ((struct sockaddr_un *)(&ss))->sun_path,
2688 is_listen ? ",server" : "");
2689 break;
2690#endif
2691 case AF_INET6:
2692 left = "[";
2693 right = "]";
2694 /* fall through */
2695 case AF_INET:
2696 s->do_nodelay = do_nodelay;
2697 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2698 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
e5545854 2699 snprintf(chr->filename, 256, "%s:%s%s%s:%s%s",
f6bd5d6e
GH		 2700 is_telnet ? "telnet" : "tcp",
2701 left, host, right, serv,
2702 is_listen ? ",server" : "");
2703 break;
2704 }
2705
2706 chr->opaque = s;
2707 chr->chr_write = tcp_chr_write;
2708 chr->chr_close = tcp_chr_close;
2709 chr->get_msgfd = tcp_get_msgfd;
2710 chr->chr_add_client = tcp_chr_add_client;
d3cc5bc4 2711 chr->chr_add_watch = tcp_chr_add_watch;
f6bd5d6e
GH		 2712
2713 if (is_listen) {
2714 s->listen_fd = fd;
2ea5a7af
AL		 2715 s->listen_chan = io_channel_from_socket(s->listen_fd);
2716 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
f6bd5d6e
GH		 2717 if (is_telnet) {
2718 s->do_telnetopt = 1;
2719 }
2720 } else {
2721 s->connected = 1;
2722 s->fd = fd;
2723 socket_set_nodelay(fd);
2ea5a7af 2724 s->chan = io_channel_from_socket(s->fd);
f6bd5d6e
GH		 2725 tcp_chr_connect(chr);
2726 }
2727
2728 if (is_listen && is_waitconnect) {
2729 printf("QEMU waiting for connection on: %s\n",
2730 chr->filename);
2ea5a7af 2731 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
f6bd5d6e
GH		 2732 socket_set_nonblock(s->listen_fd);
2733 }
2734 return chr;
2735}
2736
2737static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2738{
2739 CharDriverState *chr = NULL;
87d5f24f 2740 Error *local_err = NULL;
aeb2c47a
GH		 2741 int fd = -1;
2742 int is_listen;
2743 int is_waitconnect;
2744 int do_nodelay;
2745 int is_unix;
2746 int is_telnet;
2747
2748 is_listen = qemu_opt_get_bool(opts, "server", 0);
2749 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2750 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2751 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2752 is_unix = qemu_opt_get(opts, "path") != NULL;
6f97dba0
AL		 2753 if (!is_listen)
2754 is_waitconnect = 0;
2755
f07b6003
AL		 2756 if (is_unix) {
2757 if (is_listen) {
87d5f24f 2758 fd = unix_listen_opts(opts, &local_err);
f07b6003 2759 } else {
87d5f24f 2760 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2761 }
2762 } else {
2763 if (is_listen) {
87d5f24f 2764 fd = inet_listen_opts(opts, 0, &local_err);
f07b6003 2765 } else {
87d5f24f 2766 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
f07b6003
AL		 2767 }
2768 }
a89dd6c3 2769 if (fd < 0) {
6f97dba0 2770 goto fail;
a89dd6c3 2771 }
6f97dba0
AL		 2772
2773 if (!is_waitconnect)
2774 socket_set_nonblock(fd);
2775
f6bd5d6e
GH		 2776 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2777 is_waitconnect, &local_err);
2778 if (error_is_set(&local_err)) {
2779 goto fail;
6f97dba0 2780 }
1f51470d 2781 return chr;
aeb2c47a 2782
f6bd5d6e 2783
6f97dba0 2784 fail:
87d5f24f
PB		 2785 if (local_err) {
2786 qerror_report_err(local_err);
2787 error_free(local_err);
2788 }
2789 if (fd >= 0) {
6f97dba0 2790 closesocket(fd);
87d5f24f 2791 }
f6bd5d6e
GH		 2792 if (chr) {
2793 g_free(chr->opaque);
2794 g_free(chr);
2795 }
1f51470d 2796 return NULL;
6f97dba0
AL		 2797}
2798
999bd67c
LC		 2799/***********************************************************/
2800/* Memory chardev */
2801typedef struct {
2802 size_t outbuf_size;
2803 size_t outbuf_capacity;
2804 uint8_t *outbuf;
2805} MemoryDriver;
2806
2807static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2808{
2809 MemoryDriver *d = chr->opaque;
2810
2811 /* TODO: the QString implementation has the same code, we should
2812 * introduce a generic way to do this in cutils.c */
2813 if (d->outbuf_capacity < d->outbuf_size + len) {
2814 /* grow outbuf */
2815 d->outbuf_capacity += len;
2816 d->outbuf_capacity *= 2;
7267c094 2817 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
999bd67c
LC		 2818 }
2819
2820 memcpy(d->outbuf + d->outbuf_size, buf, len);
2821 d->outbuf_size += len;
2822
2823 return len;
2824}
2825
2826void qemu_chr_init_mem(CharDriverState *chr)
2827{
2828 MemoryDriver *d;
2829
7267c094 2830 d = g_malloc(sizeof(*d));
999bd67c
LC		 2831 d->outbuf_size = 0;
2832 d->outbuf_capacity = 4096;
7267c094 2833 d->outbuf = g_malloc0(d->outbuf_capacity);
999bd67c
LC		 2834
2835 memset(chr, 0, sizeof(*chr));
2836 chr->opaque = d;
2837 chr->chr_write = mem_chr_write;
2838}
2839
2840QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2841{
2842 MemoryDriver *d = chr->opaque;
2843 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2844}
2845
70f24fb6 2846/* NOTE: this driver can not be closed with qemu_chr_delete()! */
999bd67c
LC		 2847void qemu_chr_close_mem(CharDriverState *chr)
2848{
2849 MemoryDriver *d = chr->opaque;
2850
7267c094
AL		 2851 g_free(d->outbuf);
2852 g_free(chr->opaque);
999bd67c
LC		 2853 chr->opaque = NULL;
2854 chr->chr_write = NULL;
2855}
2856
2857size_t qemu_chr_mem_osize(const CharDriverState *chr)
2858{
2859 const MemoryDriver *d = chr->opaque;
2860 return d->outbuf_size;
2861}
2862
51767e7c 2863/*********************************************************/
3949e594 2864/* Ring buffer chardev */
51767e7c
LL		 2865
2866typedef struct {
2867 size_t size;
2868 size_t prod;
2869 size_t cons;
2870 uint8_t *cbuf;
3949e594 2871} RingBufCharDriver;
51767e7c 2872
3949e594 2873static size_t ringbuf_count(const CharDriverState *chr)
51767e7c 2874{
3949e594 2875 const RingBufCharDriver *d = chr->opaque;
51767e7c 2876
5c230105 2877 return d->prod - d->cons;
51767e7c
LL		 2878}
2879
3949e594 2880static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
51767e7c 2881{
3949e594 2882 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2883 int i;
2884
2885 if (!buf || (len < 0)) {
2886 return -1;
2887 }
2888
2889 for (i = 0; i < len; i++ ) {
5c230105
MA		 2890 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2891 if (d->prod - d->cons > d->size) {
51767e7c
LL		 2892 d->cons = d->prod - d->size;
2893 }
2894 }
2895
2896 return 0;
2897}
2898
3949e594 2899static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
51767e7c 2900{
3949e594 2901 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2902 int i;
2903
5c230105
MA		 2904 for (i = 0; i < len && d->cons != d->prod; i++) {
2905 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
51767e7c
LL		 2906 }
2907
2908 return i;
2909}
2910
3949e594 2911static void ringbuf_chr_close(struct CharDriverState *chr)
51767e7c 2912{
3949e594 2913 RingBufCharDriver *d = chr->opaque;
51767e7c
LL		 2914
2915 g_free(d->cbuf);
2916 g_free(d);
2917 chr->opaque = NULL;
2918}
2919
1da48c65
GH		 2920static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
2921 Error **errp)
51767e7c
LL		 2922{
2923 CharDriverState *chr;
3949e594 2924 RingBufCharDriver *d;
51767e7c
LL		 2925
2926 chr = g_malloc0(sizeof(CharDriverState));
2927 d = g_malloc(sizeof(*d));
2928
1da48c65 2929 d->size = opts->has_size ? opts->size : 65536;
51767e7c
LL		 2930
2931 /* The size must be power of 2 */
2932 if (d->size & (d->size - 1)) {
1da48c65 2933 error_setg(errp, "size of ringbuf chardev must be power of two");
51767e7c
LL		 2934 goto fail;
2935 }
2936
2937 d->prod = 0;
2938 d->cons = 0;
2939 d->cbuf = g_malloc0(d->size);
2940
2941 chr->opaque = d;
3949e594
MA		 2942 chr->chr_write = ringbuf_chr_write;
2943 chr->chr_close = ringbuf_chr_close;
51767e7c
LL		 2944
2945 return chr;
2946
2947fail:
2948 g_free(d);
2949 g_free(chr);
2950 return NULL;
2951}
2952
3949e594 2953static bool chr_is_ringbuf(const CharDriverState *chr)
1f590cf9 2954{
3949e594 2955 return chr->chr_write == ringbuf_chr_write;
1f590cf9
LL		 2956}
2957
3949e594 2958void qmp_ringbuf_write(const char *device, const char *data,
82e59a67 2959 bool has_format, enum DataFormat format,
1f590cf9
LL		 2960 Error **errp)
2961{
2962 CharDriverState *chr;
c4f331b6 2963 const uint8_t *write_data;
1f590cf9 2964 int ret;
c4f331b6 2965 size_t write_count;
1f590cf9
LL		 2966
2967 chr = qemu_chr_find(device);
2968 if (!chr) {
1a69278e 2969 error_setg(errp, "Device '%s' not found", device);
1f590cf9
LL		 2970 return;
2971 }
2972
3949e594
MA		 2973 if (!chr_is_ringbuf(chr)) {
2974 error_setg(errp,"%s is not a ringbuf device", device);
1f590cf9
LL		 2975 return;
2976 }
2977
1f590cf9
LL		 2978 if (has_format && (format == DATA_FORMAT_BASE64)) {
2979 write_data = g_base64_decode(data, &write_count);
2980 } else {
2981 write_data = (uint8_t *)data;
82e59a67 2982 write_count = strlen(data);
1f590cf9
LL		 2983 }
2984
3949e594 2985 ret = ringbuf_chr_write(chr, write_data, write_count);
1f590cf9 2986
13289fb5
MA		 2987 if (write_data != (uint8_t *)data) {
2988 g_free((void *)write_data);
2989 }
2990
1f590cf9
LL		 2991 if (ret < 0) {
2992 error_setg(errp, "Failed to write to device %s", device);
2993 return;
2994 }
2995}
2996
3949e594 2997char *qmp_ringbuf_read(const char *device, int64_t size,
3ab651fc
MA		 2998 bool has_format, enum DataFormat format,
2999 Error **errp)
49b6d722
LL		 3000{
3001 CharDriverState *chr;
c4f331b6 3002 uint8_t *read_data;
49b6d722 3003 size_t count;
3ab651fc 3004 char *data;
49b6d722
LL		 3005
3006 chr = qemu_chr_find(device);
3007 if (!chr) {
1a69278e 3008 error_setg(errp, "Device '%s' not found", device);
49b6d722
LL		 3009 return NULL;
3010 }
3011
3949e594
MA		 3012 if (!chr_is_ringbuf(chr)) {
3013 error_setg(errp,"%s is not a ringbuf device", device);
49b6d722
LL		 3014 return NULL;
3015 }
3016
3017 if (size <= 0) {
3018 error_setg(errp, "size must be greater than zero");
3019 return NULL;
3020 }
3021
3949e594 3022 count = ringbuf_count(chr);
49b6d722 3023 size = size > count ? count : size;
44f3bcd2 3024 read_data = g_malloc(size + 1);
49b6d722 3025
3949e594 3026 ringbuf_chr_read(chr, read_data, size);
49b6d722
LL		 3027
3028 if (has_format && (format == DATA_FORMAT_BASE64)) {
3ab651fc 3029 data = g_base64_encode(read_data, size);
13289fb5 3030 g_free(read_data);
49b6d722 3031 } else {
3949e594
MA		 3032 /*
3033 * FIXME should read only complete, valid UTF-8 characters up
3034 * to @size bytes. Invalid sequences should be replaced by a
3035 * suitable replacement character. Except when (and only
3036 * when) ring buffer lost characters since last read, initial
3037 * continuation characters should be dropped.
3038 */
44f3bcd2 3039 read_data[size] = 0;
3ab651fc 3040 data = (char *)read_data;
49b6d722
LL		 3041 }
3042
3ab651fc 3043 return data;
49b6d722
LL		 3044}
3045
33521634 3046QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
191bc01b 3047{
6ea314d9 3048 char host[65], port[33], width[8], height[8];
aeb2c47a 3049 int pos;
7d31544f 3050 const char *p;
191bc01b 3051 QemuOpts *opts;
8be7e7e4 3052 Error *local_err = NULL;
191bc01b 3053
8be7e7e4
LC		 3054 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3055 if (error_is_set(&local_err)) {
3056 qerror_report_err(local_err);
3057 error_free(local_err);
191bc01b 3058 return NULL;
8be7e7e4 3059 }
191bc01b 3060
7591c5c1
GH		 3061 if (strstart(filename, "mon:", &p)) {
3062 filename = p;
3063 qemu_opt_set(opts, "mux", "on");
3064 }
3065
f0457e8d
GH		 3066 if (strcmp(filename, "null") == 0 ||
3067 strcmp(filename, "pty") == 0 ||
3068 strcmp(filename, "msmouse") == 0 ||
dc1c21e6 3069 strcmp(filename, "braille") == 0 ||
f0457e8d 3070 strcmp(filename, "stdio") == 0) {
4490dadf 3071 qemu_opt_set(opts, "backend", filename);
191bc01b
GH		 3072 return opts;
3073 }
6ea314d9
GH		 3074 if (strstart(filename, "vc", &p)) {
3075 qemu_opt_set(opts, "backend", "vc");
3076 if (*p == ':') {
3077 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3078 /* pixels */
3079 qemu_opt_set(opts, "width", width);
3080 qemu_opt_set(opts, "height", height);
3081 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3082 /* chars */
3083 qemu_opt_set(opts, "cols", width);
3084 qemu_opt_set(opts, "rows", height);
3085 } else {
3086 goto fail;
3087 }
3088 }
3089 return opts;
3090 }
d6c983cd
GH		 3091 if (strcmp(filename, "con:") == 0) {
3092 qemu_opt_set(opts, "backend", "console");
3093 return opts;
3094 }
48b76496
GH		 3095 if (strstart(filename, "COM", NULL)) {
3096 qemu_opt_set(opts, "backend", "serial");
3097 qemu_opt_set(opts, "path", filename);
3098 return opts;
3099 }
7d31544f
GH		 3100 if (strstart(filename, "file:", &p)) {
3101 qemu_opt_set(opts, "backend", "file");
3102 qemu_opt_set(opts, "path", p);
3103 return opts;
3104 }
3105 if (strstart(filename, "pipe:", &p)) {
3106 qemu_opt_set(opts, "backend", "pipe");
3107 qemu_opt_set(opts, "path", p);
3108 return opts;
3109 }
aeb2c47a
GH		 3110 if (strstart(filename, "tcp:", &p) ||
3111 strstart(filename, "telnet:", &p)) {
3112 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3113 host[0] = 0;
3114 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3115 goto fail;
3116 }
3117 qemu_opt_set(opts, "backend", "socket");
3118 qemu_opt_set(opts, "host", host);
3119 qemu_opt_set(opts, "port", port);
3120 if (p[pos] == ',') {
3121 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3122 goto fail;
3123 }
3124 if (strstart(filename, "telnet:", &p))
3125 qemu_opt_set(opts, "telnet", "on");
3126 return opts;
3127 }
7e1b35b4
GH		 3128 if (strstart(filename, "udp:", &p)) {
3129 qemu_opt_set(opts, "backend", "udp");
3130 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3131 host[0] = 0;
39324ca4 3132 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
7e1b35b4
GH		 3133 goto fail;
3134 }
3135 }
3136 qemu_opt_set(opts, "host", host);
3137 qemu_opt_set(opts, "port", port);
3138 if (p[pos] == '@') {
3139 p += pos + 1;
3140 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3141 host[0] = 0;
3142 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
7e1b35b4
GH		 3143 goto fail;
3144 }
3145 }
3146 qemu_opt_set(opts, "localaddr", host);
3147 qemu_opt_set(opts, "localport", port);
3148 }
3149 return opts;
3150 }
aeb2c47a
GH		 3151 if (strstart(filename, "unix:", &p)) {
3152 qemu_opt_set(opts, "backend", "socket");
3153 if (qemu_opts_do_parse(opts, p, "path") != 0)
3154 goto fail;
3155 return opts;
3156 }
48b76496
GH		 3157 if (strstart(filename, "/dev/parport", NULL) ||
3158 strstart(filename, "/dev/ppi", NULL)) {
3159 qemu_opt_set(opts, "backend", "parport");
3160 qemu_opt_set(opts, "path", filename);
3161 return opts;
3162 }
3163 if (strstart(filename, "/dev/", NULL)) {
3164 qemu_opt_set(opts, "backend", "tty");
3165 qemu_opt_set(opts, "path", filename);
3166 return opts;
3167 }
191bc01b 3168
aeb2c47a 3169fail:
191bc01b
GH		 3170 qemu_opts_del(opts);
3171 return NULL;
3172}
3173
846e2e49
GH		 3174static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3175 Error **errp)
3176{
3177 const char *path = qemu_opt_get(opts, "path");
3178
3179 if (path == NULL) {
3180 error_setg(errp, "chardev: file: no filename given");
3181 return;
3182 }
3183 backend->file = g_new0(ChardevFile, 1);
3184 backend->file->out = g_strdup(path);
3185}
3186
7c358031
GH		 3187static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3188 Error **errp)
3189{
3190 backend->stdio = g_new0(ChardevStdio, 1);
3191 backend->stdio->has_signal = true;
3192 backend->stdio->signal =
3193 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3194}
3195
0f1cb51d
GH		 3196static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3197 Error **errp)
3198{
3199 const char *device = qemu_opt_get(opts, "path");
3200
3201 if (device == NULL) {
3202 error_setg(errp, "chardev: serial/tty: no device path given");
3203 return;
3204 }
3205 backend->serial = g_new0(ChardevHostdev, 1);
3206 backend->serial->device = g_strdup(device);
3207}
3208
dc375097
GH		 3209static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3210 Error **errp)
3211{
3212 const char *device = qemu_opt_get(opts, "path");
3213
3214 if (device == NULL) {
3215 error_setg(errp, "chardev: parallel: no device path given");
3216 return;
3217 }
3218 backend->parallel = g_new0(ChardevHostdev, 1);
3219 backend->parallel->device = g_strdup(device);
3220}
3221
548cbb36
GH		 3222static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3223 Error **errp)
3224{
3225 const char *device = qemu_opt_get(opts, "path");
3226
3227 if (device == NULL) {
3228 error_setg(errp, "chardev: pipe: no device path given");
3229 return;
3230 }
3231 backend->pipe = g_new0(ChardevHostdev, 1);
3232 backend->pipe->device = g_strdup(device);
3233}
3234
1da48c65
GH		 3235static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
3236 Error **errp)
3237{
3238 int val;
3239
3240 backend->memory = g_new0(ChardevRingbuf, 1);
3241
3242 val = qemu_opt_get_number(opts, "size", 0);
3243 if (val != 0) {
3244 backend->memory->has_size = true;
3245 backend->memory->size = val;
3246 }
3247}
3248
d654f34e 3249typedef struct CharDriver {
191bc01b 3250 const char *name;
2c5f4882 3251 /* old, pre qapi */
1f51470d 3252 CharDriverState *(*open)(QemuOpts *opts);
2c5f4882
GH		 3253 /* new, qapi-based */
3254 int kind;
3255 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
d654f34e
AL		 3256} CharDriver;
3257
3258static GSList *backends;
3259
3260void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3261{
3262 CharDriver *s;
3263
3264 s = g_malloc0(sizeof(*s));
3265 s->name = g_strdup(name);
3266 s->open = open;
3267
3268 backends = g_slist_append(backends, s);
3269}
191bc01b 3270
2c5f4882
GH		 3271void register_char_driver_qapi(const char *name, int kind,
3272 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3273{
3274 CharDriver *s;
3275
3276 s = g_malloc0(sizeof(*s));
3277 s->name = g_strdup(name);
3278 s->kind = kind;
3279 s->parse = parse;
3280
3281 backends = g_slist_append(backends, s);
3282}
3283
f69554b9 3284CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
bd2d80b2
GH		 3285 void (*init)(struct CharDriverState *s),
3286 Error **errp)
191bc01b 3287{
d654f34e 3288 CharDriver *cd;
191bc01b 3289 CharDriverState *chr;
d654f34e 3290 GSList *i;
191bc01b
GH		 3291
3292 if (qemu_opts_id(opts) == NULL) {
312fd5f2 3293 error_setg(errp, "chardev: no id specified");
2274ae9d 3294 goto err;
191bc01b
GH		 3295 }
3296
1bbd185f 3297 if (qemu_opt_get(opts, "backend") == NULL) {
312fd5f2 3298 error_setg(errp, "chardev: \"%s\" missing backend",
bd2d80b2 3299 qemu_opts_id(opts));
2274ae9d 3300 goto err;
1bbd185f 3301 }
d654f34e
AL		 3302 for (i = backends; i; i = i->next) {
3303 cd = i->data;
3304
3305 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
191bc01b 3306 break;
d654f34e 3307 }
191bc01b 3308 }
d654f34e 3309 if (i == NULL) {
312fd5f2 3310 error_setg(errp, "chardev: backend \"%s\" not found",
bd2d80b2 3311 qemu_opt_get(opts, "backend"));
d654f34e 3312 return NULL;
191bc01b
GH		 3313 }
3314
2c5f4882
GH		 3315 if (!cd->open) {
3316 /* using new, qapi init */
3317 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3318 ChardevReturn *ret = NULL;
3319 const char *id = qemu_opts_id(opts);
edb2fb3c
GH		 3320 const char *bid = NULL;
3321
3322 if (qemu_opt_get_bool(opts, "mux", 0)) {
3323 bid = g_strdup_printf("%s-base", id);
3324 }
2c5f4882
GH		 3325
3326 chr = NULL;
3327 backend->kind = cd->kind;
3328 if (cd->parse) {
3329 cd->parse(opts, backend, errp);
3330 if (error_is_set(errp)) {
3331 goto qapi_out;
3332 }
3333 }
edb2fb3c 3334 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
2c5f4882
GH		 3335 if (error_is_set(errp)) {
3336 goto qapi_out;
3337 }
edb2fb3c
GH		 3338
3339 if (bid) {
3340 qapi_free_ChardevBackend(backend);
3341 qapi_free_ChardevReturn(ret);
3342 backend = g_new0(ChardevBackend, 1);
3343 backend->mux = g_new0(ChardevMux, 1);
3344 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3345 backend->mux->chardev = g_strdup(bid);
3346 ret = qmp_chardev_add(id, backend, errp);
3347 if (error_is_set(errp)) {
3348 goto qapi_out;
3349 }
3350 }
3351
2c5f4882
GH		 3352 chr = qemu_chr_find(id);
3353
3354 qapi_out:
3355 qapi_free_ChardevBackend(backend);
3356 qapi_free_ChardevReturn(ret);
3357 return chr;
3358 }
3359
d654f34e 3360 chr = cd->open(opts);
1f51470d 3361 if (!chr) {
312fd5f2 3362 error_setg(errp, "chardev: opening backend \"%s\" failed",
bd2d80b2 3363 qemu_opt_get(opts, "backend"));
2274ae9d 3364 goto err;
191bc01b
GH		 3365 }
3366
3367 if (!chr->filename)
7267c094 3368 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
191bc01b 3369 chr->init = init;
72cf2d4f 3370 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
7591c5c1
GH		 3371
3372 if (qemu_opt_get_bool(opts, "mux", 0)) {
3373 CharDriverState *base = chr;
3374 int len = strlen(qemu_opts_id(opts)) + 6;
7267c094 3375 base->label = g_malloc(len);
7591c5c1
GH		 3376 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3377 chr = qemu_chr_open_mux(base);
3378 chr->filename = base->filename;
d5b27167 3379 chr->avail_connections = MAX_MUX;
72cf2d4f 3380 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
d5b27167
KK		 3381 } else {
3382 chr->avail_connections = 1;
7591c5c1 3383 }
7267c094 3384 chr->label = g_strdup(qemu_opts_id(opts));
2274ae9d 3385 chr->opts = opts;
191bc01b 3386 return chr;
2274ae9d
GH		 3387
3388err:
3389 qemu_opts_del(opts);
3390 return NULL;
191bc01b
GH		 3391}
3392
27143a44 3393CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
6f97dba0
AL		 3394{
3395 const char *p;
3396 CharDriverState *chr;
191bc01b 3397 QemuOpts *opts;
bd2d80b2 3398 Error *err = NULL;
191bc01b 3399
c845f401
GH		 3400 if (strstart(filename, "chardev:", &p)) {
3401 return qemu_chr_find(p);
3402 }
3403
191bc01b 3404 opts = qemu_chr_parse_compat(label, filename);
7e1b35b4
GH		 3405 if (!opts)
3406 return NULL;
6f97dba0 3407
bd2d80b2
GH		 3408 chr = qemu_chr_new_from_opts(opts, init, &err);
3409 if (error_is_set(&err)) {
3410 fprintf(stderr, "%s\n", error_get_pretty(err));
3411 error_free(err);
3412 }
7e1b35b4
GH		 3413 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3414 monitor_init(chr, MONITOR_USE_READLINE);
6f97dba0
AL		 3415 }
3416 return chr;
3417}
3418
15f31519 3419void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
c48855e1
PB		 3420{
3421 if (chr->chr_set_echo) {
3422 chr->chr_set_echo(chr, echo);
3423 }
3424}
3425
c9d830ed 3426void qemu_chr_fe_open(struct CharDriverState *chr)
7c32c4fe 3427{
c0c4bd2c
HG		 3428 if (chr->fe_open) {
3429 return;
3430 }
3431 chr->fe_open = 1;
7c32c4fe
HG		 3432 if (chr->chr_guest_open) {
3433 chr->chr_guest_open(chr);
3434 }
3435}
3436
2817822d 3437void qemu_chr_fe_close(struct CharDriverState *chr)
7c32c4fe 3438{
c0c4bd2c
HG		 3439 if (!chr->fe_open) {
3440 return;
3441 }
3442 chr->fe_open = 0;
7c32c4fe
HG		 3443 if (chr->chr_guest_close) {
3444 chr->chr_guest_close(chr);
3445 }
3446}
3447
2c8a5942
KW		 3448int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3449 GIOFunc func, void *user_data)
23673ca7
AL		 3450{
3451 GSource *src;
3452 guint tag;
3453
3454 if (s->chr_add_watch == NULL) {
3455 return -ENOSYS;
3456 }
3457
3458 src = s->chr_add_watch(s, cond);
3459 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3460 tag = g_source_attach(src, NULL);
3461 g_source_unref(src);
3462
3463 return tag;
3464}
3465
70f24fb6 3466void qemu_chr_delete(CharDriverState *chr)
6f97dba0 3467{
72cf2d4f 3468 QTAILQ_REMOVE(&chardevs, chr, next);
2274ae9d 3469 if (chr->chr_close) {
6f97dba0 3470 chr->chr_close(chr);
2274ae9d 3471 }
7267c094
AL		 3472 g_free(chr->filename);
3473 g_free(chr->label);
2274ae9d
GH		 3474 if (chr->opts) {
3475 qemu_opts_del(chr->opts);
3476 }
7267c094 3477 g_free(chr);
6f97dba0
AL		 3478}
3479
c5a415a0 3480ChardevInfoList *qmp_query_chardev(Error **errp)
6f97dba0 3481{
c5a415a0 3482 ChardevInfoList *chr_list = NULL;
6f97dba0
AL		 3483 CharDriverState *chr;
3484
72cf2d4f 3485 QTAILQ_FOREACH(chr, &chardevs, next) {
c5a415a0
LC		 3486 ChardevInfoList *info = g_malloc0(sizeof(*info));
3487 info->value = g_malloc0(sizeof(*info->value));
3488 info->value->label = g_strdup(chr->label);
3489 info->value->filename = g_strdup(chr->filename);
3490
3491 info->next = chr_list;
3492 chr_list = info;
6f97dba0 3493 }
588b3832 3494
c5a415a0 3495 return chr_list;
6f97dba0 3496}
c845f401
GH		 3497
3498CharDriverState *qemu_chr_find(const char *name)
3499{
3500 CharDriverState *chr;
3501
72cf2d4f 3502 QTAILQ_FOREACH(chr, &chardevs, next) {
c845f401
GH		 3503 if (strcmp(chr->label, name) != 0)
3504 continue;
3505 return chr;
3506 }
3507 return NULL;
3508}
0beb4942
AL		 3509
3510/* Get a character (serial) device interface. */
3511CharDriverState *qemu_char_get_next_serial(void)
3512{
3513 static int next_serial;
3514
3515 /* FIXME: This function needs to go away: use chardev properties! */
3516 return serial_hds[next_serial++];
3517}
3518
4d454574
PB		 3519QemuOptsList qemu_chardev_opts = {
3520 .name = "chardev",
3521 .implied_opt_name = "backend",
3522 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3523 .desc = {
3524 {
3525 .name = "backend",
3526 .type = QEMU_OPT_STRING,
3527 },{
3528 .name = "path",
3529 .type = QEMU_OPT_STRING,
3530 },{
3531 .name = "host",
3532 .type = QEMU_OPT_STRING,
3533 },{
3534 .name = "port",
3535 .type = QEMU_OPT_STRING,
3536 },{
3537 .name = "localaddr",
3538 .type = QEMU_OPT_STRING,
3539 },{
3540 .name = "localport",
3541 .type = QEMU_OPT_STRING,
3542 },{
3543 .name = "to",
3544 .type = QEMU_OPT_NUMBER,
3545 },{
3546 .name = "ipv4",
3547 .type = QEMU_OPT_BOOL,
3548 },{
3549 .name = "ipv6",
3550 .type = QEMU_OPT_BOOL,
3551 },{
3552 .name = "wait",
3553 .type = QEMU_OPT_BOOL,
3554 },{
3555 .name = "server",
3556 .type = QEMU_OPT_BOOL,
3557 },{
3558 .name = "delay",
3559 .type = QEMU_OPT_BOOL,
3560 },{
3561 .name = "telnet",
3562 .type = QEMU_OPT_BOOL,
3563 },{
3564 .name = "width",
3565 .type = QEMU_OPT_NUMBER,
3566 },{
3567 .name = "height",
3568 .type = QEMU_OPT_NUMBER,
3569 },{
3570 .name = "cols",
3571 .type = QEMU_OPT_NUMBER,
3572 },{
3573 .name = "rows",
3574 .type = QEMU_OPT_NUMBER,
3575 },{
3576 .name = "mux",
3577 .type = QEMU_OPT_BOOL,
3578 },{
3579 .name = "signal",
3580 .type = QEMU_OPT_BOOL,
3581 },{
3582 .name = "name",
3583 .type = QEMU_OPT_STRING,
3584 },{
3585 .name = "debug",
3586 .type = QEMU_OPT_NUMBER,
51767e7c 3587 },{
3949e594 3588 .name = "size",
de1cc36e 3589 .type = QEMU_OPT_SIZE,
4d454574
PB		 3590 },
3591 { /* end of list */ }
3592 },
3593};
f1a1a356 3594
ffbdbe59
GH		 3595#ifdef _WIN32
3596
3597static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3598{
3599 HANDLE out;
3600
3601 if (file->in) {
3602 error_setg(errp, "input file not supported");
3603 return NULL;
3604 }
3605
3606 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3607 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3608 if (out == INVALID_HANDLE_VALUE) {
3609 error_setg(errp, "open %s failed", file->out);
3610 return NULL;
3611 }
3612 return qemu_chr_open_win_file(out);
3613}
3614
d36b2b90
MA		 3615static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3616 Error **errp)
d59044ef 3617{
d36b2b90
MA		 3618 return qemu_chr_open_win_path(serial->device);
3619}
3620
3621static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3622 Error **errp)
3623{
3624 error_setg(errp, "character device backend type 'parallel' not supported");
3625 return NULL;
d59044ef
GH		 3626}
3627
ffbdbe59
GH		 3628#else /* WIN32 */
3629
3630static int qmp_chardev_open_file_source(char *src, int flags,
3631 Error **errp)
3632{
3633 int fd = -1;
3634
3635 TFR(fd = qemu_open(src, flags, 0666));
3636 if (fd == -1) {
3637 error_setg(errp, "open %s: %s", src, strerror(errno));
3638 }
3639 return fd;
3640}
3641
3642static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3643{
3644 int flags, in = -1, out = -1;
3645
3646 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3647 out = qmp_chardev_open_file_source(file->out, flags, errp);
3648 if (error_is_set(errp)) {
3649 return NULL;
3650 }
3651
3652 if (file->in) {
3653 flags = O_RDONLY;
3654 in = qmp_chardev_open_file_source(file->in, flags, errp);
3655 if (error_is_set(errp)) {
3656 qemu_close(out);
3657 return NULL;
3658 }
3659 }
3660
3661 return qemu_chr_open_fd(in, out);
3662}
3663
d36b2b90
MA		 3664static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3665 Error **errp)
d59044ef 3666{
d59044ef 3667#ifdef HAVE_CHARDEV_TTY
d36b2b90
MA		 3668 int fd;
3669
3670 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3671 if (error_is_set(errp)) {
3672 return NULL;
39099991 3673 }
d36b2b90
MA		 3674 socket_set_nonblock(fd);
3675 return qemu_chr_open_tty_fd(fd);
3676#else
3677 error_setg(errp, "character device backend type 'serial' not supported");
3678 return NULL;
88a946d3 3679#endif
d36b2b90
MA		 3680}
3681
3682static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3683 Error **errp)
3684{
88a946d3 3685#ifdef HAVE_CHARDEV_PARPORT
d36b2b90
MA		 3686 int fd;
3687
3688 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3689 if (error_is_set(errp)) {
d59044ef
GH		 3690 return NULL;
3691 }
d36b2b90
MA		 3692 return qemu_chr_open_pp_fd(fd);
3693#else
3694 error_setg(errp, "character device backend type 'parallel' not supported");
3695 return NULL;
3696#endif
d59044ef
GH		 3697}
3698
ffbdbe59
GH		 3699#endif /* WIN32 */
3700
f6bd5d6e
GH		 3701static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3702 Error **errp)
3703{
3704 SocketAddress *addr = sock->addr;
3705 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3706 bool is_listen = sock->has_server ? sock->server : true;
3707 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3708 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3709 int fd;
3710
3711 if (is_listen) {
3712 fd = socket_listen(addr, errp);
3713 } else {
3714 fd = socket_connect(addr, errp, NULL, NULL);
3715 }
3716 if (error_is_set(errp)) {
3717 return NULL;
3718 }
3719 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3720 is_telnet, is_waitconnect, errp);
3721}
3722
3ecc059d
GH		 3723static CharDriverState *qmp_chardev_open_dgram(ChardevDgram *dgram,
3724 Error **errp)
3725{
3726 int fd;
3727
3728 fd = socket_dgram(dgram->remote, dgram->local, errp);
3729 if (error_is_set(errp)) {
3730 return NULL;
3731 }
3732 return qemu_chr_open_udp_fd(fd);
3733}
3734
f1a1a356
GH		 3735ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3736 Error **errp)
3737{
3738 ChardevReturn *ret = g_new0(ChardevReturn, 1);
edb2fb3c 3739 CharDriverState *base, *chr = NULL;
f1a1a356
GH		 3740
3741 chr = qemu_chr_find(id);
3742 if (chr) {
3743 error_setg(errp, "Chardev '%s' already exists", id);
3744 g_free(ret);
3745 return NULL;
3746 }
3747
3748 switch (backend->kind) {
ffbdbe59
GH		 3749 case CHARDEV_BACKEND_KIND_FILE:
3750 chr = qmp_chardev_open_file(backend->file, errp);
3751 break;
d36b2b90
MA		 3752 case CHARDEV_BACKEND_KIND_SERIAL:
3753 chr = qmp_chardev_open_serial(backend->serial, errp);
3754 break;
3755 case CHARDEV_BACKEND_KIND_PARALLEL:
3756 chr = qmp_chardev_open_parallel(backend->parallel, errp);
d59044ef 3757 break;
548cbb36
GH		 3758 case CHARDEV_BACKEND_KIND_PIPE:
3759 chr = qemu_chr_open_pipe(backend->pipe);
3760 break;
f6bd5d6e
GH		 3761 case CHARDEV_BACKEND_KIND_SOCKET:
3762 chr = qmp_chardev_open_socket(backend->socket, errp);
3763 break;
3ecc059d
GH		 3764 case CHARDEV_BACKEND_KIND_DGRAM:
3765 chr = qmp_chardev_open_dgram(backend->dgram, errp);
3766 break;
0a1a7fab
GH		 3767#ifdef HAVE_CHARDEV_TTY
3768 case CHARDEV_BACKEND_KIND_PTY:
e68c5958 3769 chr = qemu_chr_open_pty(id, ret);
0a1a7fab 3770 break;
0a1a7fab 3771#endif
f1a1a356 3772 case CHARDEV_BACKEND_KIND_NULL:
80dca9e6 3773 chr = qemu_chr_open_null();
f1a1a356 3774 break;
edb2fb3c
GH		 3775 case CHARDEV_BACKEND_KIND_MUX:
3776 base = qemu_chr_find(backend->mux->chardev);
3777 if (base == NULL) {
3778 error_setg(errp, "mux: base chardev %s not found",
3779 backend->mux->chardev);
3780 break;
3781 }
3782 chr = qemu_chr_open_mux(base);
3783 break;
f5a51cab
GH		 3784 case CHARDEV_BACKEND_KIND_MSMOUSE:
3785 chr = qemu_chr_open_msmouse();
3786 break;
2d57286d
GH		 3787#ifdef CONFIG_BRLAPI
3788 case CHARDEV_BACKEND_KIND_BRAILLE:
3789 chr = chr_baum_init();
3790 break;
3791#endif
7c358031
GH		 3792 case CHARDEV_BACKEND_KIND_STDIO:
3793 chr = qemu_chr_open_stdio(backend->stdio);
3794 break;
d9ac374f
GH		 3795#ifdef _WIN32
3796 case CHARDEV_BACKEND_KIND_CONSOLE:
3797 chr = qemu_chr_open_win_con();
3798 break;
cd153e2a
GH		 3799#endif
3800#ifdef CONFIG_SPICE
3801 case CHARDEV_BACKEND_KIND_SPICEVMC:
3802 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3803 break;
3804 case CHARDEV_BACKEND_KIND_SPICEPORT:
3805 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3806 break;
d9ac374f 3807#endif
702ec69c
GH		 3808 case CHARDEV_BACKEND_KIND_VC:
3809 chr = vc_init(backend->vc);
3810 break;
1da48c65
GH		 3811 case CHARDEV_BACKEND_KIND_MEMORY:
3812 chr = qemu_chr_open_ringbuf(backend->memory, errp);
3813 break;
f1a1a356
GH		 3814 default:
3815 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3816 break;
3817 }
3818
3819 if (chr == NULL && !error_is_set(errp)) {
3820 error_setg(errp, "Failed to create chardev");
3821 }
3822 if (chr) {
3823 chr->label = g_strdup(id);
edb2fb3c
GH		 3824 chr->avail_connections =
3825 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
f1a1a356
GH		 3826 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3827 return ret;
3828 } else {
3829 g_free(ret);
3830 return NULL;
3831 }
3832}
3833
3834void qmp_chardev_remove(const char *id, Error **errp)
3835{
3836 CharDriverState *chr;
3837
3838 chr = qemu_chr_find(id);
3839 if (NULL == chr) {
3840 error_setg(errp, "Chardev '%s' not found", id);
3841 return;
3842 }
3843 if (chr->chr_can_read || chr->chr_read ||
3844 chr->chr_event || chr->handler_opaque) {
3845 error_setg(errp, "Chardev '%s' is busy", id);
3846 return;
3847 }
3848 qemu_chr_delete(chr);
3849}
d654f34e
AL		 3850
3851static void register_types(void)
3852{
80dca9e6 3853 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
d654f34e
AL		 3854 register_char_driver("socket", qemu_chr_open_socket);
3855 register_char_driver("udp", qemu_chr_open_udp);
1da48c65
GH		 3856 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3857 qemu_chr_parse_ringbuf);
846e2e49
GH		 3858 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3859 qemu_chr_parse_file_out);
7c358031
GH		 3860 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3861 qemu_chr_parse_stdio);
0f1cb51d
GH		 3862 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3863 qemu_chr_parse_serial);
3864 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3865 qemu_chr_parse_serial);
dc375097
GH		 3866 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3867 qemu_chr_parse_parallel);
3868 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3869 qemu_chr_parse_parallel);
e68c5958 3870 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
d9ac374f 3871 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
548cbb36
GH		 3872 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3873 qemu_chr_parse_pipe);
d654f34e
AL		 3874}
3875
3876type_init(register_types);
Qemu copy for testing