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aliguori6f97dba2008-10-31 18:49:55 +00001/*
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"
25#include "net.h"
aliguori376253e2009-03-05 23:01:23 +000026#include "monitor.h"
aliguori6f97dba2008-10-31 18:49:55 +000027#include "console.h"
28#include "sysemu.h"
29#include "qemu-timer.h"
30#include "qemu-char.h"
aurel32cf3ebac2008-11-01 00:53:09 +000031#include "hw/usb.h"
32#include "hw/baum.h"
aurel32aa71cf82009-02-08 15:53:20 +000033#include "hw/msmouse.h"
Luiz Capitulinoc5a415a2011-09-14 16:05:49 -030034#include "qmp-commands.h"
aliguori6f97dba2008-10-31 18:49:55 +000035
36#include <unistd.h>
37#include <fcntl.h>
aliguori6f97dba2008-10-31 18:49:55 +000038#include <time.h>
39#include <errno.h>
40#include <sys/time.h>
41#include <zlib.h>
42
43#ifndef _WIN32
44#include <sys/times.h>
45#include <sys/wait.h>
46#include <termios.h>
47#include <sys/mman.h>
48#include <sys/ioctl.h>
blueswir124646c72008-11-07 16:55:48 +000049#include <sys/resource.h>
aliguori6f97dba2008-10-31 18:49:55 +000050#include <sys/socket.h>
51#include <netinet/in.h>
blueswir124646c72008-11-07 16:55:48 +000052#include <net/if.h>
blueswir124646c72008-11-07 16:55:48 +000053#include <arpa/inet.h>
aliguori6f97dba2008-10-31 18:49:55 +000054#include <dirent.h>
55#include <netdb.h>
56#include <sys/select.h>
Juan Quintela71e72a12009-07-27 16:12:56 +020057#ifdef CONFIG_BSD
aliguori6f97dba2008-10-31 18:49:55 +000058#include <sys/stat.h>
Aurelien Jarnoa167ba52009-11-29 18:00:41 +010059#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
aliguori6f97dba2008-10-31 18:49:55 +000060#include <libutil.h>
blueswir16972f932008-11-22 20:49:12 +000061#include <dev/ppbus/ppi.h>
62#include <dev/ppbus/ppbconf.h>
Aurelien Jarnoa167ba52009-11-29 18:00:41 +010063#if defined(__GLIBC__)
64#include <pty.h>
65#endif
blueswir1c5e97232009-03-07 20:06:23 +000066#elif defined(__DragonFly__)
67#include <libutil.h>
68#include <dev/misc/ppi/ppi.h>
69#include <bus/ppbus/ppbconf.h>
blueswir124646c72008-11-07 16:55:48 +000070#else
71#include <util.h>
aliguori6f97dba2008-10-31 18:49:55 +000072#endif
Aurelien Jarnobbe813a2009-11-30 15:42:59 +010073#else
aliguori6f97dba2008-10-31 18:49:55 +000074#ifdef __linux__
aliguori6f97dba2008-10-31 18:49:55 +000075#include <pty.h>
76
77#include <linux/ppdev.h>
78#include <linux/parport.h>
79#endif
80#ifdef __sun__
81#include <sys/stat.h>
82#include <sys/ethernet.h>
83#include <sys/sockio.h>
84#include <netinet/arp.h>
85#include <netinet/in.h>
86#include <netinet/in_systm.h>
87#include <netinet/ip.h>
88#include <netinet/ip_icmp.h> // must come after ip.h
89#include <netinet/udp.h>
90#include <netinet/tcp.h>
91#include <net/if.h>
92#include <syslog.h>
93#include <stropts.h>
94#endif
95#endif
96#endif
97
98#include "qemu_socket.h"
Alon Levycbcc6332011-01-19 10:49:50 +020099#include "ui/qemu-spice.h"
aliguori6f97dba2008-10-31 18:49:55 +0000100
Amit Shah9bd78542009-11-03 19:59:54 +0530101#define READ_BUF_LEN 4096
102
aliguori6f97dba2008-10-31 18:49:55 +0000103/***********************************************************/
104/* character device */
105
Blue Swirl72cf2d42009-09-12 07:36:22 +0000106static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
107 QTAILQ_HEAD_INITIALIZER(chardevs);
aliguori2970a6c2009-03-05 22:59:58 +0000108
Hans de Goedea425d232011-11-19 10:22:43 +0100109void qemu_chr_be_event(CharDriverState *s, int event)
aliguori6f97dba2008-10-31 18:49:55 +0000110{
Alexander Graf73cdf3f2010-04-01 18:42:39 +0200111 /* Keep track if the char device is open */
112 switch (event) {
113 case CHR_EVENT_OPENED:
114 s->opened = 1;
115 break;
116 case CHR_EVENT_CLOSED:
117 s->opened = 0;
118 break;
119 }
120
aliguori6f97dba2008-10-31 18:49:55 +0000121 if (!s->chr_event)
122 return;
123 s->chr_event(s->handler_opaque, event);
124}
125
Amit Shah127338e2009-11-03 19:59:56 +0530126static void qemu_chr_generic_open_bh(void *opaque)
aliguori6f97dba2008-10-31 18:49:55 +0000127{
128 CharDriverState *s = opaque;
Hans de Goedea425d232011-11-19 10:22:43 +0100129 qemu_chr_be_event(s, CHR_EVENT_OPENED);
aliguori6f97dba2008-10-31 18:49:55 +0000130 qemu_bh_delete(s->bh);
131 s->bh = NULL;
132}
133
Amit Shah127338e2009-11-03 19:59:56 +0530134void qemu_chr_generic_open(CharDriverState *s)
aliguori6f97dba2008-10-31 18:49:55 +0000135{
Amit Shah69795d62009-10-07 18:31:15 +0530136 if (s->bh == NULL) {
Amit Shah127338e2009-11-03 19:59:56 +0530137 s->bh = qemu_bh_new(qemu_chr_generic_open_bh, s);
aliguori6f97dba2008-10-31 18:49:55 +0000138 qemu_bh_schedule(s->bh);
139 }
140}
141
Anthony Liguori2cc6e0a2011-08-15 11:17:28 -0500142int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
aliguori6f97dba2008-10-31 18:49:55 +0000143{
144 return s->chr_write(s, buf, len);
145}
146
Anthony Liguori41084f12011-08-15 11:17:34 -0500147int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
aliguori6f97dba2008-10-31 18:49:55 +0000148{
149 if (!s->chr_ioctl)
150 return -ENOTSUP;
151 return s->chr_ioctl(s, cmd, arg);
152}
153
Anthony Liguori909cda12011-08-15 11:17:31 -0500154int qemu_chr_be_can_write(CharDriverState *s)
aliguori6f97dba2008-10-31 18:49:55 +0000155{
156 if (!s->chr_can_read)
157 return 0;
158 return s->chr_can_read(s->handler_opaque);
159}
160
Anthony Liguorifa5efcc2011-08-15 11:17:30 -0500161void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
aliguori6f97dba2008-10-31 18:49:55 +0000162{
163 s->chr_read(s->handler_opaque, buf, len);
164}
165
Anthony Liguori74c0d6f2011-08-15 11:17:39 -0500166int qemu_chr_fe_get_msgfd(CharDriverState *s)
Mark McLoughlin7d174052009-07-22 09:11:39 +0100167{
168 return s->get_msgfd ? s->get_msgfd(s) : -1;
169}
170
Daniel P. Berrange13661082011-06-23 13:31:42 +0100171int qemu_chr_add_client(CharDriverState *s, int fd)
172{
173 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
174}
175
aliguori6f97dba2008-10-31 18:49:55 +0000176void qemu_chr_accept_input(CharDriverState *s)
177{
178 if (s->chr_accept_input)
179 s->chr_accept_input(s);
180}
181
Anthony Liguorie7e71b02011-08-15 11:17:29 -0500182void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
aliguori6f97dba2008-10-31 18:49:55 +0000183{
Amit Shah9bd78542009-11-03 19:59:54 +0530184 char buf[READ_BUF_LEN];
aliguori6f97dba2008-10-31 18:49:55 +0000185 va_list ap;
186 va_start(ap, fmt);
187 vsnprintf(buf, sizeof(buf), fmt, ap);
Anthony Liguori2cc6e0a2011-08-15 11:17:28 -0500188 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
aliguori6f97dba2008-10-31 18:49:55 +0000189 va_end(ap);
190}
191
aliguori6f97dba2008-10-31 18:49:55 +0000192void qemu_chr_add_handlers(CharDriverState *s,
Juan Quintela7b27a762010-03-11 17:55:39 +0100193 IOCanReadHandler *fd_can_read,
aliguori6f97dba2008-10-31 18:49:55 +0000194 IOReadHandler *fd_read,
195 IOEventHandler *fd_event,
196 void *opaque)
197{
Amit Shahda7d9982011-04-25 15:18:22 +0530198 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
Amit Shah2d6c1ef2011-02-10 12:55:20 +0530199 /* chr driver being released. */
Kusanagi Kouichid5b27162011-04-26 19:19:26 +0900200 ++s->avail_connections;
Amit Shah2d6c1ef2011-02-10 12:55:20 +0530201 }
aliguori6f97dba2008-10-31 18:49:55 +0000202 s->chr_can_read = fd_can_read;
203 s->chr_read = fd_read;
204 s->chr_event = fd_event;
205 s->handler_opaque = opaque;
206 if (s->chr_update_read_handler)
207 s->chr_update_read_handler(s);
Alexander Graf73cdf3f2010-04-01 18:42:39 +0200208
209 /* We're connecting to an already opened device, so let's make sure we
210 also get the open event */
211 if (s->opened) {
212 qemu_chr_generic_open(s);
213 }
aliguori6f97dba2008-10-31 18:49:55 +0000214}
215
216static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
217{
218 return len;
219}
220
Kevin Wolf6e1db572011-06-01 13:29:11 +0200221static int qemu_chr_open_null(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +0000222{
223 CharDriverState *chr;
224
Anthony Liguori7267c092011-08-20 22:09:37 -0500225 chr = g_malloc0(sizeof(CharDriverState));
aliguori6f97dba2008-10-31 18:49:55 +0000226 chr->chr_write = null_chr_write;
Kevin Wolf6e1db572011-06-01 13:29:11 +0200227
228 *_chr= chr;
229 return 0;
aliguori6f97dba2008-10-31 18:49:55 +0000230}
231
232/* MUX driver for serial I/O splitting */
aliguori6f97dba2008-10-31 18:49:55 +0000233#define MAX_MUX 4
234#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
235#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
236typedef struct {
Juan Quintela7b27a762010-03-11 17:55:39 +0100237 IOCanReadHandler *chr_can_read[MAX_MUX];
aliguori6f97dba2008-10-31 18:49:55 +0000238 IOReadHandler *chr_read[MAX_MUX];
239 IOEventHandler *chr_event[MAX_MUX];
240 void *ext_opaque[MAX_MUX];
241 CharDriverState *drv;
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200242 int focus;
aliguori6f97dba2008-10-31 18:49:55 +0000243 int mux_cnt;
244 int term_got_escape;
245 int max_size;
aliguoria80bf992009-03-05 23:00:02 +0000246 /* Intermediate input buffer allows to catch escape sequences even if the
247 currently active device is not accepting any input - but only until it
248 is full as well. */
249 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
250 int prod[MAX_MUX];
251 int cons[MAX_MUX];
Jan Kiszka2d229592009-06-15 22:25:30 +0200252 int timestamps;
Jan Kiszka4ab312f2009-06-15 22:25:34 +0200253 int linestart;
Jan Kiszka2d229592009-06-15 22:25:30 +0200254 int64_t timestamps_start;
aliguori6f97dba2008-10-31 18:49:55 +0000255} MuxDriver;
256
257
258static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
259{
260 MuxDriver *d = chr->opaque;
261 int ret;
Jan Kiszka2d229592009-06-15 22:25:30 +0200262 if (!d->timestamps) {
aliguori6f97dba2008-10-31 18:49:55 +0000263 ret = d->drv->chr_write(d->drv, buf, len);
264 } else {
265 int i;
266
267 ret = 0;
Jan Kiszka4ab312f2009-06-15 22:25:34 +0200268 for (i = 0; i < len; i++) {
269 if (d->linestart) {
aliguori6f97dba2008-10-31 18:49:55 +0000270 char buf1[64];
271 int64_t ti;
272 int secs;
273
Paolo Bonzini7bd427d2011-03-11 16:47:48 +0100274 ti = qemu_get_clock_ms(rt_clock);
Jan Kiszka2d229592009-06-15 22:25:30 +0200275 if (d->timestamps_start == -1)
276 d->timestamps_start = ti;
277 ti -= d->timestamps_start;
aliguoria4bb1db2009-01-22 17:15:16 +0000278 secs = ti / 1000;
aliguori6f97dba2008-10-31 18:49:55 +0000279 snprintf(buf1, sizeof(buf1),
280 "[%02d:%02d:%02d.%03d] ",
281 secs / 3600,
282 (secs / 60) % 60,
283 secs % 60,
aliguoria4bb1db2009-01-22 17:15:16 +0000284 (int)(ti % 1000));
aliguori6f97dba2008-10-31 18:49:55 +0000285 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
Jan Kiszka4ab312f2009-06-15 22:25:34 +0200286 d->linestart = 0;
287 }
288 ret += d->drv->chr_write(d->drv, buf+i, 1);
289 if (buf[i] == '\n') {
290 d->linestart = 1;
aliguori6f97dba2008-10-31 18:49:55 +0000291 }
292 }
293 }
294 return ret;
295}
296
297static const char * const mux_help[] = {
298 "% h print this help\n\r",
299 "% x exit emulator\n\r",
300 "% s save disk data back to file (if -snapshot)\n\r",
301 "% t toggle console timestamps\n\r"
302 "% b send break (magic sysrq)\n\r",
303 "% c switch between console and monitor\n\r",
304 "% % sends %\n\r",
305 NULL
306};
307
308int term_escape_char = 0x01; /* ctrl-a is used for escape */
309static void mux_print_help(CharDriverState *chr)
310{
311 int i, j;
312 char ebuf[15] = "Escape-Char";
313 char cbuf[50] = "\n\r";
314
315 if (term_escape_char > 0 && term_escape_char < 26) {
316 snprintf(cbuf, sizeof(cbuf), "\n\r");
317 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
318 } else {
319 snprintf(cbuf, sizeof(cbuf),
320 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
321 term_escape_char);
322 }
323 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
324 for (i = 0; mux_help[i] != NULL; i++) {
325 for (j=0; mux_help[i][j] != '\0'; j++) {
326 if (mux_help[i][j] == '%')
327 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
328 else
329 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
330 }
331 }
332}
333
aliguori2724b182009-03-05 23:01:47 +0000334static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
335{
336 if (d->chr_event[mux_nr])
337 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
338}
339
aliguori6f97dba2008-10-31 18:49:55 +0000340static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
341{
342 if (d->term_got_escape) {
343 d->term_got_escape = 0;
344 if (ch == term_escape_char)
345 goto send_char;
346 switch(ch) {
347 case '?':
348 case 'h':
349 mux_print_help(chr);
350 break;
351 case 'x':
352 {
353 const char *term = "QEMU: Terminated\n\r";
354 chr->chr_write(chr,(uint8_t *)term,strlen(term));
355 exit(0);
356 break;
357 }
358 case 's':
Markus Armbruster6ab4b5a2010-06-02 18:55:18 +0200359 bdrv_commit_all();
aliguori6f97dba2008-10-31 18:49:55 +0000360 break;
361 case 'b':
Hans de Goedea425d232011-11-19 10:22:43 +0100362 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
aliguori6f97dba2008-10-31 18:49:55 +0000363 break;
364 case 'c':
365 /* Switch to the next registered device */
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200366 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
367 d->focus++;
368 if (d->focus >= d->mux_cnt)
369 d->focus = 0;
370 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
aliguori6f97dba2008-10-31 18:49:55 +0000371 break;
Jan Kiszka2d229592009-06-15 22:25:30 +0200372 case 't':
373 d->timestamps = !d->timestamps;
374 d->timestamps_start = -1;
Jan Kiszka4ab312f2009-06-15 22:25:34 +0200375 d->linestart = 0;
Jan Kiszka2d229592009-06-15 22:25:30 +0200376 break;
aliguori6f97dba2008-10-31 18:49:55 +0000377 }
378 } else if (ch == term_escape_char) {
379 d->term_got_escape = 1;
380 } else {
381 send_char:
382 return 1;
383 }
384 return 0;
385}
386
387static void mux_chr_accept_input(CharDriverState *chr)
388{
aliguori6f97dba2008-10-31 18:49:55 +0000389 MuxDriver *d = chr->opaque;
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200390 int m = d->focus;
aliguori6f97dba2008-10-31 18:49:55 +0000391
aliguoria80bf992009-03-05 23:00:02 +0000392 while (d->prod[m] != d->cons[m] &&
aliguori6f97dba2008-10-31 18:49:55 +0000393 d->chr_can_read[m] &&
394 d->chr_can_read[m](d->ext_opaque[m])) {
395 d->chr_read[m](d->ext_opaque[m],
aliguoria80bf992009-03-05 23:00:02 +0000396 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
aliguori6f97dba2008-10-31 18:49:55 +0000397 }
398}
399
400static int mux_chr_can_read(void *opaque)
401{
402 CharDriverState *chr = opaque;
403 MuxDriver *d = chr->opaque;
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200404 int m = d->focus;
aliguori6f97dba2008-10-31 18:49:55 +0000405
aliguoria80bf992009-03-05 23:00:02 +0000406 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
aliguori6f97dba2008-10-31 18:49:55 +0000407 return 1;
aliguoria80bf992009-03-05 23:00:02 +0000408 if (d->chr_can_read[m])
409 return d->chr_can_read[m](d->ext_opaque[m]);
aliguori6f97dba2008-10-31 18:49:55 +0000410 return 0;
411}
412
413static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
414{
415 CharDriverState *chr = opaque;
416 MuxDriver *d = chr->opaque;
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200417 int m = d->focus;
aliguori6f97dba2008-10-31 18:49:55 +0000418 int i;
419
420 mux_chr_accept_input (opaque);
421
422 for(i = 0; i < size; i++)
423 if (mux_proc_byte(chr, d, buf[i])) {
aliguoria80bf992009-03-05 23:00:02 +0000424 if (d->prod[m] == d->cons[m] &&
aliguori6f97dba2008-10-31 18:49:55 +0000425 d->chr_can_read[m] &&
426 d->chr_can_read[m](d->ext_opaque[m]))
427 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
428 else
aliguoria80bf992009-03-05 23:00:02 +0000429 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
aliguori6f97dba2008-10-31 18:49:55 +0000430 }
431}
432
433static void mux_chr_event(void *opaque, int event)
434{
435 CharDriverState *chr = opaque;
436 MuxDriver *d = chr->opaque;
437 int i;
438
439 /* Send the event to all registered listeners */
440 for (i = 0; i < d->mux_cnt; i++)
aliguori2724b182009-03-05 23:01:47 +0000441 mux_chr_send_event(d, i, event);
aliguori6f97dba2008-10-31 18:49:55 +0000442}
443
444static void mux_chr_update_read_handler(CharDriverState *chr)
445{
446 MuxDriver *d = chr->opaque;
447
448 if (d->mux_cnt >= MAX_MUX) {
449 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
450 return;
451 }
452 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
453 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
454 d->chr_read[d->mux_cnt] = chr->chr_read;
455 d->chr_event[d->mux_cnt] = chr->chr_event;
456 /* Fix up the real driver with mux routines */
457 if (d->mux_cnt == 0) {
458 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
459 mux_chr_event, chr);
460 }
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200461 if (d->focus != -1) {
462 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
Gerd Hoffmanna7aec5d2009-09-10 10:58:54 +0200463 }
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200464 d->focus = d->mux_cnt;
aliguori6f97dba2008-10-31 18:49:55 +0000465 d->mux_cnt++;
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200466 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
aliguori6f97dba2008-10-31 18:49:55 +0000467}
468
469static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
470{
471 CharDriverState *chr;
472 MuxDriver *d;
473
Anthony Liguori7267c092011-08-20 22:09:37 -0500474 chr = g_malloc0(sizeof(CharDriverState));
475 d = g_malloc0(sizeof(MuxDriver));
aliguori6f97dba2008-10-31 18:49:55 +0000476
477 chr->opaque = d;
478 d->drv = drv;
Gerd Hoffmann799f1f22009-09-10 10:58:55 +0200479 d->focus = -1;
aliguori6f97dba2008-10-31 18:49:55 +0000480 chr->chr_write = mux_chr_write;
481 chr->chr_update_read_handler = mux_chr_update_read_handler;
482 chr->chr_accept_input = mux_chr_accept_input;
Hans de Goede7c32c4f2011-03-24 11:12:02 +0100483 /* Frontend guest-open / -close notification is not support with muxes */
484 chr->chr_guest_open = NULL;
485 chr->chr_guest_close = NULL;
Alexander Graf73cdf3f2010-04-01 18:42:39 +0200486
487 /* Muxes are always open on creation */
488 qemu_chr_generic_open(chr);
489
aliguori6f97dba2008-10-31 18:49:55 +0000490 return chr;
491}
492
493
494#ifdef _WIN32
aliguorid247d252008-11-11 20:46:40 +0000495int send_all(int fd, const void *buf, int len1)
aliguori6f97dba2008-10-31 18:49:55 +0000496{
497 int ret, len;
498
499 len = len1;
500 while (len > 0) {
501 ret = send(fd, buf, len, 0);
502 if (ret < 0) {
aliguori6f97dba2008-10-31 18:49:55 +0000503 errno = WSAGetLastError();
504 if (errno != WSAEWOULDBLOCK) {
505 return -1;
506 }
507 } else if (ret == 0) {
508 break;
509 } else {
510 buf += ret;
511 len -= ret;
512 }
513 }
514 return len1 - len;
515}
516
517#else
518
Jes Sorensen5fc9cfe2010-11-01 20:02:23 +0100519int send_all(int fd, const void *_buf, int len1)
aliguori6f97dba2008-10-31 18:49:55 +0000520{
521 int ret, len;
Jes Sorensen5fc9cfe2010-11-01 20:02:23 +0100522 const uint8_t *buf = _buf;
aliguori6f97dba2008-10-31 18:49:55 +0000523
524 len = len1;
525 while (len > 0) {
526 ret = write(fd, buf, len);
527 if (ret < 0) {
528 if (errno != EINTR && errno != EAGAIN)
529 return -1;
530 } else if (ret == 0) {
531 break;
532 } else {
533 buf += ret;
534 len -= ret;
535 }
536 }
537 return len1 - len;
538}
aliguori6f97dba2008-10-31 18:49:55 +0000539#endif /* !_WIN32 */
540
Fabien Chouteaudb418a02011-10-06 16:37:51 +0200541#define STDIO_MAX_CLIENTS 1
542static int stdio_nb_clients;
543
aliguori6f97dba2008-10-31 18:49:55 +0000544#ifndef _WIN32
545
546typedef struct {
547 int fd_in, fd_out;
548 int max_size;
549} FDCharDriver;
550
aliguori6f97dba2008-10-31 18:49:55 +0000551
552static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
553{
554 FDCharDriver *s = chr->opaque;
555 return send_all(s->fd_out, buf, len);
556}
557
558static int fd_chr_read_poll(void *opaque)
559{
560 CharDriverState *chr = opaque;
561 FDCharDriver *s = chr->opaque;
562
Anthony Liguori909cda12011-08-15 11:17:31 -0500563 s->max_size = qemu_chr_be_can_write(chr);
aliguori6f97dba2008-10-31 18:49:55 +0000564 return s->max_size;
565}
566
567static void fd_chr_read(void *opaque)
568{
569 CharDriverState *chr = opaque;
570 FDCharDriver *s = chr->opaque;
571 int size, len;
Amit Shah9bd78542009-11-03 19:59:54 +0530572 uint8_t buf[READ_BUF_LEN];
aliguori6f97dba2008-10-31 18:49:55 +0000573
574 len = sizeof(buf);
575 if (len > s->max_size)
576 len = s->max_size;
577 if (len == 0)
578 return;
579 size = read(s->fd_in, buf, len);
580 if (size == 0) {
581 /* FD has been closed. Remove it from the active list. */
582 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
Hans de Goedea425d232011-11-19 10:22:43 +0100583 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori6f97dba2008-10-31 18:49:55 +0000584 return;
585 }
586 if (size > 0) {
Anthony Liguorifa5efcc2011-08-15 11:17:30 -0500587 qemu_chr_be_write(chr, buf, size);
aliguori6f97dba2008-10-31 18:49:55 +0000588 }
589}
590
591static void fd_chr_update_read_handler(CharDriverState *chr)
592{
593 FDCharDriver *s = chr->opaque;
594
595 if (s->fd_in >= 0) {
Anthony Liguori993fbfd2009-05-21 16:54:00 -0500596 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
aliguori6f97dba2008-10-31 18:49:55 +0000597 } else {
598 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
599 fd_chr_read, NULL, chr);
600 }
601 }
602}
603
604static void fd_chr_close(struct CharDriverState *chr)
605{
606 FDCharDriver *s = chr->opaque;
607
608 if (s->fd_in >= 0) {
Anthony Liguori993fbfd2009-05-21 16:54:00 -0500609 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
aliguori6f97dba2008-10-31 18:49:55 +0000610 } else {
611 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
612 }
613 }
614
Anthony Liguori7267c092011-08-20 22:09:37 -0500615 g_free(s);
Hans de Goedea425d232011-11-19 10:22:43 +0100616 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori6f97dba2008-10-31 18:49:55 +0000617}
618
619/* open a character device to a unix fd */
620static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
621{
622 CharDriverState *chr;
623 FDCharDriver *s;
624
Anthony Liguori7267c092011-08-20 22:09:37 -0500625 chr = g_malloc0(sizeof(CharDriverState));
626 s = g_malloc0(sizeof(FDCharDriver));
aliguori6f97dba2008-10-31 18:49:55 +0000627 s->fd_in = fd_in;
628 s->fd_out = fd_out;
629 chr->opaque = s;
630 chr->chr_write = fd_chr_write;
631 chr->chr_update_read_handler = fd_chr_update_read_handler;
632 chr->chr_close = fd_chr_close;
633
Amit Shah127338e2009-11-03 19:59:56 +0530634 qemu_chr_generic_open(chr);
aliguori6f97dba2008-10-31 18:49:55 +0000635
636 return chr;
637}
638
Kevin Wolf6e1db572011-06-01 13:29:11 +0200639static int qemu_chr_open_file_out(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +0000640{
641 int fd_out;
642
Kevin Wolf40ff6d72009-12-02 12:24:42 +0100643 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
Gerd Hoffmann7d315442009-09-10 10:58:36 +0200644 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
Kevin Wolf6e1db572011-06-01 13:29:11 +0200645 if (fd_out < 0) {
646 return -errno;
647 }
648
649 *_chr = qemu_chr_open_fd(-1, fd_out);
650 return 0;
aliguori6f97dba2008-10-31 18:49:55 +0000651}
652
Kevin Wolf6e1db572011-06-01 13:29:11 +0200653static int qemu_chr_open_pipe(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +0000654{
655 int fd_in, fd_out;
656 char filename_in[256], filename_out[256];
Gerd Hoffmann7d315442009-09-10 10:58:36 +0200657 const char *filename = qemu_opt_get(opts, "path");
658
659 if (filename == NULL) {
660 fprintf(stderr, "chardev: pipe: no filename given\n");
Kevin Wolf6e1db572011-06-01 13:29:11 +0200661 return -EINVAL;
Gerd Hoffmann7d315442009-09-10 10:58:36 +0200662 }
aliguori6f97dba2008-10-31 18:49:55 +0000663
664 snprintf(filename_in, 256, "%s.in", filename);
665 snprintf(filename_out, 256, "%s.out", filename);
Kevin Wolf40ff6d72009-12-02 12:24:42 +0100666 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
667 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
aliguori6f97dba2008-10-31 18:49:55 +0000668 if (fd_in < 0 || fd_out < 0) {
669 if (fd_in >= 0)
670 close(fd_in);
671 if (fd_out >= 0)
672 close(fd_out);
Kevin Wolf6e1db572011-06-01 13:29:11 +0200673 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
674 if (fd_in < 0) {
675 return -errno;
676 }
aliguori6f97dba2008-10-31 18:49:55 +0000677 }
Kevin Wolf6e1db572011-06-01 13:29:11 +0200678
679 *_chr = qemu_chr_open_fd(fd_in, fd_out);
680 return 0;
aliguori6f97dba2008-10-31 18:49:55 +0000681}
682
683
684/* for STDIO, we handle the case where several clients use it
685 (nographic mode) */
686
687#define TERM_FIFO_MAX_SIZE 1
688
689static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
690static int term_fifo_size;
691
692static int stdio_read_poll(void *opaque)
693{
694 CharDriverState *chr = opaque;
695
696 /* try to flush the queue if needed */
Anthony Liguori909cda12011-08-15 11:17:31 -0500697 if (term_fifo_size != 0 && qemu_chr_be_can_write(chr) > 0) {
Anthony Liguorifa5efcc2011-08-15 11:17:30 -0500698 qemu_chr_be_write(chr, term_fifo, 1);
aliguori6f97dba2008-10-31 18:49:55 +0000699 term_fifo_size = 0;
700 }
701 /* see if we can absorb more chars */
702 if (term_fifo_size == 0)
703 return 1;
704 else
705 return 0;
706}
707
708static void stdio_read(void *opaque)
709{
710 int size;
711 uint8_t buf[1];
712 CharDriverState *chr = opaque;
713
714 size = read(0, buf, 1);
715 if (size == 0) {
716 /* stdin has been closed. Remove it from the active list. */
717 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
Hans de Goedea425d232011-11-19 10:22:43 +0100718 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori6f97dba2008-10-31 18:49:55 +0000719 return;
720 }
721 if (size > 0) {
Anthony Liguori909cda12011-08-15 11:17:31 -0500722 if (qemu_chr_be_can_write(chr) > 0) {
Anthony Liguorifa5efcc2011-08-15 11:17:30 -0500723 qemu_chr_be_write(chr, buf, 1);
aliguori6f97dba2008-10-31 18:49:55 +0000724 } else if (term_fifo_size == 0) {
725 term_fifo[term_fifo_size++] = buf[0];
726 }
727 }
728}
729
730/* init terminal so that we can grab keys */
731static struct termios oldtty;
732static int old_fd0_flags;
Paolo Bonzinibb002512010-12-23 13:42:50 +0100733static bool stdio_allow_signal;
aliguori6f97dba2008-10-31 18:49:55 +0000734
735static void term_exit(void)
736{
737 tcsetattr (0, TCSANOW, &oldtty);
738 fcntl(0, F_SETFL, old_fd0_flags);
739}
740
Paolo Bonzinibb002512010-12-23 13:42:50 +0100741static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
aliguori6f97dba2008-10-31 18:49:55 +0000742{
743 struct termios tty;
744
Paolo Bonzini03693642010-12-23 13:42:49 +0100745 tty = oldtty;
Paolo Bonzinibb002512010-12-23 13:42:50 +0100746 if (!echo) {
747 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
aliguori6f97dba2008-10-31 18:49:55 +0000748 |INLCR|IGNCR|ICRNL|IXON);
Paolo Bonzinibb002512010-12-23 13:42:50 +0100749 tty.c_oflag |= OPOST;
750 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
751 tty.c_cflag &= ~(CSIZE|PARENB);
752 tty.c_cflag |= CS8;
753 tty.c_cc[VMIN] = 1;
754 tty.c_cc[VTIME] = 0;
755 }
aliguori6f97dba2008-10-31 18:49:55 +0000756 /* if graphical mode, we allow Ctrl-C handling */
Paolo Bonzinibb002512010-12-23 13:42:50 +0100757 if (!stdio_allow_signal)
aliguori6f97dba2008-10-31 18:49:55 +0000758 tty.c_lflag &= ~ISIG;
aliguori6f97dba2008-10-31 18:49:55 +0000759
760 tcsetattr (0, TCSANOW, &tty);
aliguori6f97dba2008-10-31 18:49:55 +0000761}
762
763static void qemu_chr_close_stdio(struct CharDriverState *chr)
764{
765 term_exit();
766 stdio_nb_clients--;
767 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
768 fd_chr_close(chr);
769}
770
Kevin Wolf6e1db572011-06-01 13:29:11 +0200771static int qemu_chr_open_stdio(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +0000772{
773 CharDriverState *chr;
774
Kevin Wolf6e1db572011-06-01 13:29:11 +0200775 if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
776 return -EBUSY;
777 }
778
Paolo Bonzini03693642010-12-23 13:42:49 +0100779 if (stdio_nb_clients == 0) {
780 old_fd0_flags = fcntl(0, F_GETFL);
781 tcgetattr (0, &oldtty);
782 fcntl(0, F_SETFL, O_NONBLOCK);
783 atexit(term_exit);
784 }
785
aliguori6f97dba2008-10-31 18:49:55 +0000786 chr = qemu_chr_open_fd(0, 1);
787 chr->chr_close = qemu_chr_close_stdio;
Paolo Bonzinibb002512010-12-23 13:42:50 +0100788 chr->chr_set_echo = qemu_chr_set_echo_stdio;
aliguori6f97dba2008-10-31 18:49:55 +0000789 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
790 stdio_nb_clients++;
Paolo Bonzinibb002512010-12-23 13:42:50 +0100791 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
792 display_type != DT_NOGRAPHIC);
Anthony Liguori15f31512011-08-15 11:17:35 -0500793 qemu_chr_fe_set_echo(chr, false);
aliguori6f97dba2008-10-31 18:49:55 +0000794
Kevin Wolf6e1db572011-06-01 13:29:11 +0200795 *_chr = chr;
796 return 0;
aliguori6f97dba2008-10-31 18:49:55 +0000797}
798
799#ifdef __sun__
800/* Once Solaris has openpty(), this is going to be removed. */
blueswir13f4cb3d2009-04-13 16:31:01 +0000801static int openpty(int *amaster, int *aslave, char *name,
802 struct termios *termp, struct winsize *winp)
aliguori6f97dba2008-10-31 18:49:55 +0000803{
804 const char *slave;
805 int mfd = -1, sfd = -1;
806
807 *amaster = *aslave = -1;
808
809 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
810 if (mfd < 0)
811 goto err;
812
813 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
814 goto err;
815
816 if ((slave = ptsname(mfd)) == NULL)
817 goto err;
818
819 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
820 goto err;
821
822 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
823 (termp != NULL && tcgetattr(sfd, termp) < 0))
824 goto err;
825
826 if (amaster)
827 *amaster = mfd;
828 if (aslave)
829 *aslave = sfd;
830 if (winp)
831 ioctl(sfd, TIOCSWINSZ, winp);
832
833 return 0;
834
835err:
836 if (sfd != -1)
837 close(sfd);
838 close(mfd);
839 return -1;
840}
841
blueswir13f4cb3d2009-04-13 16:31:01 +0000842static void cfmakeraw (struct termios *termios_p)
aliguori6f97dba2008-10-31 18:49:55 +0000843{
844 termios_p->c_iflag &=
845 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
846 termios_p->c_oflag &= ~OPOST;
847 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
848 termios_p->c_cflag &= ~(CSIZE|PARENB);
849 termios_p->c_cflag |= CS8;
850
851 termios_p->c_cc[VMIN] = 0;
852 termios_p->c_cc[VTIME] = 0;
853}
854#endif
855
856#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
Aurelien Jarnoa167ba52009-11-29 18:00:41 +0100857 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
858 || defined(__GLIBC__)
aliguori6f97dba2008-10-31 18:49:55 +0000859
860typedef struct {
861 int fd;
862 int connected;
863 int polling;
864 int read_bytes;
865 QEMUTimer *timer;
866} PtyCharDriver;
867
868static void pty_chr_update_read_handler(CharDriverState *chr);
869static void pty_chr_state(CharDriverState *chr, int connected);
870
871static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
872{
873 PtyCharDriver *s = chr->opaque;
874
875 if (!s->connected) {
876 /* guest sends data, check for (re-)connect */
877 pty_chr_update_read_handler(chr);
878 return 0;
879 }
880 return send_all(s->fd, buf, len);
881}
882
883static int pty_chr_read_poll(void *opaque)
884{
885 CharDriverState *chr = opaque;
886 PtyCharDriver *s = chr->opaque;
887
Anthony Liguori909cda12011-08-15 11:17:31 -0500888 s->read_bytes = qemu_chr_be_can_write(chr);
aliguori6f97dba2008-10-31 18:49:55 +0000889 return s->read_bytes;
890}
891
892static void pty_chr_read(void *opaque)
893{
894 CharDriverState *chr = opaque;
895 PtyCharDriver *s = chr->opaque;
896 int size, len;
Amit Shah9bd78542009-11-03 19:59:54 +0530897 uint8_t buf[READ_BUF_LEN];
aliguori6f97dba2008-10-31 18:49:55 +0000898
899 len = sizeof(buf);
900 if (len > s->read_bytes)
901 len = s->read_bytes;
902 if (len == 0)
903 return;
904 size = read(s->fd, buf, len);
905 if ((size == -1 && errno == EIO) ||
906 (size == 0)) {
907 pty_chr_state(chr, 0);
908 return;
909 }
910 if (size > 0) {
911 pty_chr_state(chr, 1);
Anthony Liguorifa5efcc2011-08-15 11:17:30 -0500912 qemu_chr_be_write(chr, buf, size);
aliguori6f97dba2008-10-31 18:49:55 +0000913 }
914}
915
916static void pty_chr_update_read_handler(CharDriverState *chr)
917{
918 PtyCharDriver *s = chr->opaque;
919
920 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
921 pty_chr_read, NULL, chr);
922 s->polling = 1;
923 /*
924 * Short timeout here: just need wait long enougth that qemu makes
925 * it through the poll loop once. When reconnected we want a
926 * short timeout so we notice it almost instantly. Otherwise
927 * read() gives us -EIO instantly, making pty_chr_state() reset the
928 * timeout to the normal (much longer) poll interval before the
929 * timer triggers.
930 */
Paolo Bonzini7bd427d2011-03-11 16:47:48 +0100931 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
aliguori6f97dba2008-10-31 18:49:55 +0000932}
933
934static void pty_chr_state(CharDriverState *chr, int connected)
935{
936 PtyCharDriver *s = chr->opaque;
937
938 if (!connected) {
939 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
940 s->connected = 0;
941 s->polling = 0;
942 /* (re-)connect poll interval for idle guests: once per second.
943 * We check more frequently in case the guests sends data to
944 * the virtual device linked to our pty. */
Paolo Bonzini7bd427d2011-03-11 16:47:48 +0100945 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
aliguori6f97dba2008-10-31 18:49:55 +0000946 } else {
947 if (!s->connected)
Amit Shah127338e2009-11-03 19:59:56 +0530948 qemu_chr_generic_open(chr);
aliguori6f97dba2008-10-31 18:49:55 +0000949 s->connected = 1;
950 }
951}
952
953static void pty_chr_timer(void *opaque)
954{
955 struct CharDriverState *chr = opaque;
956 PtyCharDriver *s = chr->opaque;
957
958 if (s->connected)
959 return;
960 if (s->polling) {
961 /* If we arrive here without polling being cleared due
962 * read returning -EIO, then we are (re-)connected */
963 pty_chr_state(chr, 1);
964 return;
965 }
966
967 /* Next poll ... */
968 pty_chr_update_read_handler(chr);
969}
970
971static void pty_chr_close(struct CharDriverState *chr)
972{
973 PtyCharDriver *s = chr->opaque;
974
975 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
976 close(s->fd);
aliguori819f56b2009-03-28 17:58:14 +0000977 qemu_del_timer(s->timer);
978 qemu_free_timer(s->timer);
Anthony Liguori7267c092011-08-20 22:09:37 -0500979 g_free(s);
Hans de Goedea425d232011-11-19 10:22:43 +0100980 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori6f97dba2008-10-31 18:49:55 +0000981}
982
Kevin Wolf6e1db572011-06-01 13:29:11 +0200983static int qemu_chr_open_pty(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +0000984{
985 CharDriverState *chr;
986 PtyCharDriver *s;
987 struct termios tty;
Markus Armbrustera4e26042011-11-11 10:40:05 +0100988 int master_fd, slave_fd, len;
blueswir1c5e97232009-03-07 20:06:23 +0000989#if defined(__OpenBSD__) || defined(__DragonFly__)
aliguori6f97dba2008-10-31 18:49:55 +0000990 char pty_name[PATH_MAX];
991#define q_ptsname(x) pty_name
992#else
993 char *pty_name = NULL;
994#define q_ptsname(x) ptsname(x)
995#endif
996
Markus Armbrustera4e26042011-11-11 10:40:05 +0100997 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
Kevin Wolf6e1db572011-06-01 13:29:11 +0200998 return -errno;
aliguori6f97dba2008-10-31 18:49:55 +0000999 }
1000
1001 /* Set raw attributes on the pty. */
aliguoric3b972c2008-11-12 15:00:36 +00001002 tcgetattr(slave_fd, &tty);
aliguori6f97dba2008-10-31 18:49:55 +00001003 cfmakeraw(&tty);
1004 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1005 close(slave_fd);
1006
Markus Armbrustera4e26042011-11-11 10:40:05 +01001007 chr = g_malloc0(sizeof(CharDriverState));
aliguori6f97dba2008-10-31 18:49:55 +00001008
Markus Armbrustera4e26042011-11-11 10:40:05 +01001009 len = strlen(q_ptsname(master_fd)) + 5;
1010 chr->filename = g_malloc(len);
1011 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1012 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1013 fprintf(stderr, "char device redirected to %s\n", q_ptsname(master_fd));
1014
1015 s = g_malloc0(sizeof(PtyCharDriver));
aliguori6f97dba2008-10-31 18:49:55 +00001016 chr->opaque = s;
1017 chr->chr_write = pty_chr_write;
1018 chr->chr_update_read_handler = pty_chr_update_read_handler;
1019 chr->chr_close = pty_chr_close;
1020
Markus Armbrustera4e26042011-11-11 10:40:05 +01001021 s->fd = master_fd;
Paolo Bonzini7bd427d2011-03-11 16:47:48 +01001022 s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
aliguori6f97dba2008-10-31 18:49:55 +00001023
Kevin Wolf6e1db572011-06-01 13:29:11 +02001024 *_chr = chr;
1025 return 0;
aliguori6f97dba2008-10-31 18:49:55 +00001026}
1027
1028static void tty_serial_init(int fd, int speed,
1029 int parity, int data_bits, int stop_bits)
1030{
1031 struct termios tty;
1032 speed_t spd;
1033
1034#if 0
1035 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1036 speed, parity, data_bits, stop_bits);
1037#endif
1038 tcgetattr (fd, &tty);
1039
Stefan Weil45eea132009-10-26 16:10:10 +01001040#define check_speed(val) if (speed <= val) { spd = B##val; break; }
1041 speed = speed * 10 / 11;
1042 do {
1043 check_speed(50);
1044 check_speed(75);
1045 check_speed(110);
1046 check_speed(134);
1047 check_speed(150);
1048 check_speed(200);
1049 check_speed(300);
1050 check_speed(600);
1051 check_speed(1200);
1052 check_speed(1800);
1053 check_speed(2400);
1054 check_speed(4800);
1055 check_speed(9600);
1056 check_speed(19200);
1057 check_speed(38400);
1058 /* Non-Posix values follow. They may be unsupported on some systems. */
1059 check_speed(57600);
1060 check_speed(115200);
1061#ifdef B230400
1062 check_speed(230400);
1063#endif
1064#ifdef B460800
1065 check_speed(460800);
1066#endif
1067#ifdef B500000
1068 check_speed(500000);
1069#endif
1070#ifdef B576000
1071 check_speed(576000);
1072#endif
1073#ifdef B921600
1074 check_speed(921600);
1075#endif
1076#ifdef B1000000
1077 check_speed(1000000);
1078#endif
1079#ifdef B1152000
1080 check_speed(1152000);
1081#endif
1082#ifdef B1500000
1083 check_speed(1500000);
1084#endif
1085#ifdef B2000000
1086 check_speed(2000000);
1087#endif
1088#ifdef B2500000
1089 check_speed(2500000);
1090#endif
1091#ifdef B3000000
1092 check_speed(3000000);
1093#endif
1094#ifdef B3500000
1095 check_speed(3500000);
1096#endif
1097#ifdef B4000000
1098 check_speed(4000000);
1099#endif
aliguori6f97dba2008-10-31 18:49:55 +00001100 spd = B115200;
Stefan Weil45eea132009-10-26 16:10:10 +01001101 } while (0);
aliguori6f97dba2008-10-31 18:49:55 +00001102
1103 cfsetispeed(&tty, spd);
1104 cfsetospeed(&tty, spd);
1105
1106 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1107 |INLCR|IGNCR|ICRNL|IXON);
1108 tty.c_oflag |= OPOST;
1109 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1110 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1111 switch(data_bits) {
1112 default:
1113 case 8:
1114 tty.c_cflag |= CS8;
1115 break;
1116 case 7:
1117 tty.c_cflag |= CS7;
1118 break;
1119 case 6:
1120 tty.c_cflag |= CS6;
1121 break;
1122 case 5:
1123 tty.c_cflag |= CS5;
1124 break;
1125 }
1126 switch(parity) {
1127 default:
1128 case 'N':
1129 break;
1130 case 'E':
1131 tty.c_cflag |= PARENB;
1132 break;
1133 case 'O':
1134 tty.c_cflag |= PARENB | PARODD;
1135 break;
1136 }
1137 if (stop_bits == 2)
1138 tty.c_cflag |= CSTOPB;
1139
1140 tcsetattr (fd, TCSANOW, &tty);
1141}
1142
1143static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1144{
1145 FDCharDriver *s = chr->opaque;
1146
1147 switch(cmd) {
1148 case CHR_IOCTL_SERIAL_SET_PARAMS:
1149 {
1150 QEMUSerialSetParams *ssp = arg;
1151 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1152 ssp->data_bits, ssp->stop_bits);
1153 }
1154 break;
1155 case CHR_IOCTL_SERIAL_SET_BREAK:
1156 {
1157 int enable = *(int *)arg;
1158 if (enable)
1159 tcsendbreak(s->fd_in, 1);
1160 }
1161 break;
1162 case CHR_IOCTL_SERIAL_GET_TIOCM:
1163 {
1164 int sarg = 0;
1165 int *targ = (int *)arg;
1166 ioctl(s->fd_in, TIOCMGET, &sarg);
1167 *targ = 0;
aurel32b4abdfa2009-02-08 14:46:17 +00001168 if (sarg & TIOCM_CTS)
aliguori6f97dba2008-10-31 18:49:55 +00001169 *targ |= CHR_TIOCM_CTS;
aurel32b4abdfa2009-02-08 14:46:17 +00001170 if (sarg & TIOCM_CAR)
aliguori6f97dba2008-10-31 18:49:55 +00001171 *targ |= CHR_TIOCM_CAR;
aurel32b4abdfa2009-02-08 14:46:17 +00001172 if (sarg & TIOCM_DSR)
aliguori6f97dba2008-10-31 18:49:55 +00001173 *targ |= CHR_TIOCM_DSR;
aurel32b4abdfa2009-02-08 14:46:17 +00001174 if (sarg & TIOCM_RI)
aliguori6f97dba2008-10-31 18:49:55 +00001175 *targ |= CHR_TIOCM_RI;
aurel32b4abdfa2009-02-08 14:46:17 +00001176 if (sarg & TIOCM_DTR)
aliguori6f97dba2008-10-31 18:49:55 +00001177 *targ |= CHR_TIOCM_DTR;
aurel32b4abdfa2009-02-08 14:46:17 +00001178 if (sarg & TIOCM_RTS)
aliguori6f97dba2008-10-31 18:49:55 +00001179 *targ |= CHR_TIOCM_RTS;
1180 }
1181 break;
1182 case CHR_IOCTL_SERIAL_SET_TIOCM:
1183 {
1184 int sarg = *(int *)arg;
1185 int targ = 0;
aurel32b4abdfa2009-02-08 14:46:17 +00001186 ioctl(s->fd_in, TIOCMGET, &targ);
1187 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1188 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1189 if (sarg & CHR_TIOCM_CTS)
1190 targ |= TIOCM_CTS;
1191 if (sarg & CHR_TIOCM_CAR)
1192 targ |= TIOCM_CAR;
1193 if (sarg & CHR_TIOCM_DSR)
1194 targ |= TIOCM_DSR;
1195 if (sarg & CHR_TIOCM_RI)
1196 targ |= TIOCM_RI;
1197 if (sarg & CHR_TIOCM_DTR)
aliguori6f97dba2008-10-31 18:49:55 +00001198 targ |= TIOCM_DTR;
aurel32b4abdfa2009-02-08 14:46:17 +00001199 if (sarg & CHR_TIOCM_RTS)
aliguori6f97dba2008-10-31 18:49:55 +00001200 targ |= TIOCM_RTS;
1201 ioctl(s->fd_in, TIOCMSET, &targ);
1202 }
1203 break;
1204 default:
1205 return -ENOTSUP;
1206 }
1207 return 0;
1208}
1209
David Ahern4266a132010-02-10 18:27:17 -07001210static void qemu_chr_close_tty(CharDriverState *chr)
1211{
1212 FDCharDriver *s = chr->opaque;
1213 int fd = -1;
1214
1215 if (s) {
1216 fd = s->fd_in;
1217 }
1218
1219 fd_chr_close(chr);
1220
1221 if (fd >= 0) {
1222 close(fd);
1223 }
1224}
1225
Kevin Wolf6e1db572011-06-01 13:29:11 +02001226static int qemu_chr_open_tty(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +00001227{
Gerd Hoffmann48b76492009-09-10 10:58:48 +02001228 const char *filename = qemu_opt_get(opts, "path");
aliguori6f97dba2008-10-31 18:49:55 +00001229 CharDriverState *chr;
1230 int fd;
1231
Kevin Wolf6e1db572011-06-01 13:29:11 +02001232 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
Evgeniy Dushistovafc535a2010-01-28 21:44:46 +03001233 if (fd < 0) {
Kevin Wolf6e1db572011-06-01 13:29:11 +02001234 return -errno;
Evgeniy Dushistovafc535a2010-01-28 21:44:46 +03001235 }
aliguori6f97dba2008-10-31 18:49:55 +00001236 tty_serial_init(fd, 115200, 'N', 8, 1);
1237 chr = qemu_chr_open_fd(fd, fd);
aliguori6f97dba2008-10-31 18:49:55 +00001238 chr->chr_ioctl = tty_serial_ioctl;
David Ahern4266a132010-02-10 18:27:17 -07001239 chr->chr_close = qemu_chr_close_tty;
Kevin Wolf6e1db572011-06-01 13:29:11 +02001240
1241 *_chr = chr;
1242 return 0;
aliguori6f97dba2008-10-31 18:49:55 +00001243}
1244#else /* ! __linux__ && ! __sun__ */
Kevin Wolf6e1db572011-06-01 13:29:11 +02001245static int qemu_chr_open_pty(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +00001246{
Kevin Wolf6e1db572011-06-01 13:29:11 +02001247 return -ENOTSUP;
aliguori6f97dba2008-10-31 18:49:55 +00001248}
1249#endif /* __linux__ || __sun__ */
1250
1251#if defined(__linux__)
1252typedef struct {
1253 int fd;
1254 int mode;
1255} ParallelCharDriver;
1256
1257static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1258{
1259 if (s->mode != mode) {
1260 int m = mode;
1261 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1262 return 0;
1263 s->mode = mode;
1264 }
1265 return 1;
1266}
1267
1268static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1269{
1270 ParallelCharDriver *drv = chr->opaque;
1271 int fd = drv->fd;
1272 uint8_t b;
1273
1274 switch(cmd) {
1275 case CHR_IOCTL_PP_READ_DATA:
1276 if (ioctl(fd, PPRDATA, &b) < 0)
1277 return -ENOTSUP;
1278 *(uint8_t *)arg = b;
1279 break;
1280 case CHR_IOCTL_PP_WRITE_DATA:
1281 b = *(uint8_t *)arg;
1282 if (ioctl(fd, PPWDATA, &b) < 0)
1283 return -ENOTSUP;
1284 break;
1285 case CHR_IOCTL_PP_READ_CONTROL:
1286 if (ioctl(fd, PPRCONTROL, &b) < 0)
1287 return -ENOTSUP;
1288 /* Linux gives only the lowest bits, and no way to know data
1289 direction! For better compatibility set the fixed upper
1290 bits. */
1291 *(uint8_t *)arg = b | 0xc0;
1292 break;
1293 case CHR_IOCTL_PP_WRITE_CONTROL:
1294 b = *(uint8_t *)arg;
1295 if (ioctl(fd, PPWCONTROL, &b) < 0)
1296 return -ENOTSUP;
1297 break;
1298 case CHR_IOCTL_PP_READ_STATUS:
1299 if (ioctl(fd, PPRSTATUS, &b) < 0)
1300 return -ENOTSUP;
1301 *(uint8_t *)arg = b;
1302 break;
1303 case CHR_IOCTL_PP_DATA_DIR:
1304 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1305 return -ENOTSUP;
1306 break;
1307 case CHR_IOCTL_PP_EPP_READ_ADDR:
1308 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1309 struct ParallelIOArg *parg = arg;
1310 int n = read(fd, parg->buffer, parg->count);
1311 if (n != parg->count) {
1312 return -EIO;
1313 }
1314 }
1315 break;
1316 case CHR_IOCTL_PP_EPP_READ:
1317 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1318 struct ParallelIOArg *parg = arg;
1319 int n = read(fd, parg->buffer, parg->count);
1320 if (n != parg->count) {
1321 return -EIO;
1322 }
1323 }
1324 break;
1325 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1326 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1327 struct ParallelIOArg *parg = arg;
1328 int n = write(fd, parg->buffer, parg->count);
1329 if (n != parg->count) {
1330 return -EIO;
1331 }
1332 }
1333 break;
1334 case CHR_IOCTL_PP_EPP_WRITE:
1335 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1336 struct ParallelIOArg *parg = arg;
1337 int n = write(fd, parg->buffer, parg->count);
1338 if (n != parg->count) {
1339 return -EIO;
1340 }
1341 }
1342 break;
1343 default:
1344 return -ENOTSUP;
1345 }
1346 return 0;
1347}
1348
1349static void pp_close(CharDriverState *chr)
1350{
1351 ParallelCharDriver *drv = chr->opaque;
1352 int fd = drv->fd;
1353
1354 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1355 ioctl(fd, PPRELEASE);
1356 close(fd);
Anthony Liguori7267c092011-08-20 22:09:37 -05001357 g_free(drv);
Hans de Goedea425d232011-11-19 10:22:43 +01001358 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori6f97dba2008-10-31 18:49:55 +00001359}
1360
Kevin Wolf6e1db572011-06-01 13:29:11 +02001361static int qemu_chr_open_pp(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +00001362{
Gerd Hoffmann48b76492009-09-10 10:58:48 +02001363 const char *filename = qemu_opt_get(opts, "path");
aliguori6f97dba2008-10-31 18:49:55 +00001364 CharDriverState *chr;
1365 ParallelCharDriver *drv;
1366 int fd;
1367
1368 TFR(fd = open(filename, O_RDWR));
Kevin Wolf6e1db572011-06-01 13:29:11 +02001369 if (fd < 0) {
1370 return -errno;
1371 }
aliguori6f97dba2008-10-31 18:49:55 +00001372
1373 if (ioctl(fd, PPCLAIM) < 0) {
1374 close(fd);
Kevin Wolf6e1db572011-06-01 13:29:11 +02001375 return -errno;
aliguori6f97dba2008-10-31 18:49:55 +00001376 }
1377
Anthony Liguori7267c092011-08-20 22:09:37 -05001378 drv = g_malloc0(sizeof(ParallelCharDriver));
aliguori6f97dba2008-10-31 18:49:55 +00001379 drv->fd = fd;
1380 drv->mode = IEEE1284_MODE_COMPAT;
1381
Anthony Liguori7267c092011-08-20 22:09:37 -05001382 chr = g_malloc0(sizeof(CharDriverState));
aliguori6f97dba2008-10-31 18:49:55 +00001383 chr->chr_write = null_chr_write;
1384 chr->chr_ioctl = pp_ioctl;
1385 chr->chr_close = pp_close;
1386 chr->opaque = drv;
1387
Amit Shah127338e2009-11-03 19:59:56 +05301388 qemu_chr_generic_open(chr);
aliguori6f97dba2008-10-31 18:49:55 +00001389
Kevin Wolf6e1db572011-06-01 13:29:11 +02001390 *_chr = chr;
1391 return 0;
aliguori6f97dba2008-10-31 18:49:55 +00001392}
1393#endif /* __linux__ */
1394
Aurelien Jarnoa167ba52009-11-29 18:00:41 +01001395#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
blueswir16972f932008-11-22 20:49:12 +00001396static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1397{
Stefan Weile0efb992011-02-23 19:09:16 +01001398 int fd = (int)(intptr_t)chr->opaque;
blueswir16972f932008-11-22 20:49:12 +00001399 uint8_t b;
1400
1401 switch(cmd) {
1402 case CHR_IOCTL_PP_READ_DATA:
1403 if (ioctl(fd, PPIGDATA, &b) < 0)
1404 return -ENOTSUP;
1405 *(uint8_t *)arg = b;
1406 break;
1407 case CHR_IOCTL_PP_WRITE_DATA:
1408 b = *(uint8_t *)arg;
1409 if (ioctl(fd, PPISDATA, &b) < 0)
1410 return -ENOTSUP;
1411 break;
1412 case CHR_IOCTL_PP_READ_CONTROL:
1413 if (ioctl(fd, PPIGCTRL, &b) < 0)
1414 return -ENOTSUP;
1415 *(uint8_t *)arg = b;
1416 break;
1417 case CHR_IOCTL_PP_WRITE_CONTROL:
1418 b = *(uint8_t *)arg;
1419 if (ioctl(fd, PPISCTRL, &b) < 0)
1420 return -ENOTSUP;
1421 break;
1422 case CHR_IOCTL_PP_READ_STATUS:
1423 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1424 return -ENOTSUP;
1425 *(uint8_t *)arg = b;
1426 break;
1427 default:
1428 return -ENOTSUP;
1429 }
1430 return 0;
1431}
1432
Kevin Wolf6e1db572011-06-01 13:29:11 +02001433static int qemu_chr_open_pp(QemuOpts *opts, CharDriverState **_chr)
blueswir16972f932008-11-22 20:49:12 +00001434{
Gerd Hoffmann48b76492009-09-10 10:58:48 +02001435 const char *filename = qemu_opt_get(opts, "path");
blueswir16972f932008-11-22 20:49:12 +00001436 CharDriverState *chr;
1437 int fd;
1438
Kevin Wolf6e1db572011-06-01 13:29:11 +02001439 fd = qemu_open(filename, O_RDWR);
1440 if (fd < 0) {
1441 return -errno;
1442 }
blueswir16972f932008-11-22 20:49:12 +00001443
Anthony Liguori7267c092011-08-20 22:09:37 -05001444 chr = g_malloc0(sizeof(CharDriverState));
Stefan Weile0efb992011-02-23 19:09:16 +01001445 chr->opaque = (void *)(intptr_t)fd;
blueswir16972f932008-11-22 20:49:12 +00001446 chr->chr_write = null_chr_write;
1447 chr->chr_ioctl = pp_ioctl;
Kevin Wolf6e1db572011-06-01 13:29:11 +02001448
1449 *_chr = chr;
1450 return 0;
blueswir16972f932008-11-22 20:49:12 +00001451}
1452#endif
1453
aliguori6f97dba2008-10-31 18:49:55 +00001454#else /* _WIN32 */
1455
Fabien Chouteaudb418a02011-10-06 16:37:51 +02001456static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
1457
aliguori6f97dba2008-10-31 18:49:55 +00001458typedef struct {
1459 int max_size;
1460 HANDLE hcom, hrecv, hsend;
1461 OVERLAPPED orecv, osend;
1462 BOOL fpipe;
1463 DWORD len;
1464} WinCharState;
1465
Fabien Chouteaudb418a02011-10-06 16:37:51 +02001466typedef struct {
1467 HANDLE hStdIn;
1468 HANDLE hInputReadyEvent;
1469 HANDLE hInputDoneEvent;
1470 HANDLE hInputThread;
1471 uint8_t win_stdio_buf;
1472} WinStdioCharState;
1473
aliguori6f97dba2008-10-31 18:49:55 +00001474#define NSENDBUF 2048
1475#define NRECVBUF 2048
1476#define MAXCONNECT 1
1477#define NTIMEOUT 5000
1478
1479static int win_chr_poll(void *opaque);
1480static int win_chr_pipe_poll(void *opaque);
1481
1482static void win_chr_close(CharDriverState *chr)
1483{
1484 WinCharState *s = chr->opaque;
1485
1486 if (s->hsend) {
1487 CloseHandle(s->hsend);
1488 s->hsend = NULL;
1489 }
1490 if (s->hrecv) {
1491 CloseHandle(s->hrecv);
1492 s->hrecv = NULL;
1493 }
1494 if (s->hcom) {
1495 CloseHandle(s->hcom);
1496 s->hcom = NULL;
1497 }
1498 if (s->fpipe)
1499 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1500 else
1501 qemu_del_polling_cb(win_chr_poll, chr);
Amit Shah793cbfb2009-08-11 21:27:48 +05301502
Hans de Goedea425d232011-11-19 10:22:43 +01001503 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori6f97dba2008-10-31 18:49:55 +00001504}
1505
1506static int win_chr_init(CharDriverState *chr, const char *filename)
1507{
1508 WinCharState *s = chr->opaque;
1509 COMMCONFIG comcfg;
1510 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1511 COMSTAT comstat;
1512 DWORD size;
1513 DWORD err;
1514
1515 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1516 if (!s->hsend) {
1517 fprintf(stderr, "Failed CreateEvent\n");
1518 goto fail;
1519 }
1520 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1521 if (!s->hrecv) {
1522 fprintf(stderr, "Failed CreateEvent\n");
1523 goto fail;
1524 }
1525
1526 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1527 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1528 if (s->hcom == INVALID_HANDLE_VALUE) {
1529 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1530 s->hcom = NULL;
1531 goto fail;
1532 }
1533
1534 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1535 fprintf(stderr, "Failed SetupComm\n");
1536 goto fail;
1537 }
1538
1539 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1540 size = sizeof(COMMCONFIG);
1541 GetDefaultCommConfig(filename, &comcfg, &size);
1542 comcfg.dcb.DCBlength = sizeof(DCB);
1543 CommConfigDialog(filename, NULL, &comcfg);
1544
1545 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1546 fprintf(stderr, "Failed SetCommState\n");
1547 goto fail;
1548 }
1549
1550 if (!SetCommMask(s->hcom, EV_ERR)) {
1551 fprintf(stderr, "Failed SetCommMask\n");
1552 goto fail;
1553 }
1554
1555 cto.ReadIntervalTimeout = MAXDWORD;
1556 if (!SetCommTimeouts(s->hcom, &cto)) {
1557 fprintf(stderr, "Failed SetCommTimeouts\n");
1558 goto fail;
1559 }
1560
1561 if (!ClearCommError(s->hcom, &err, &comstat)) {
1562 fprintf(stderr, "Failed ClearCommError\n");
1563 goto fail;
1564 }
1565 qemu_add_polling_cb(win_chr_poll, chr);
1566 return 0;
1567
1568 fail:
1569 win_chr_close(chr);
1570 return -1;
1571}
1572
1573static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1574{
1575 WinCharState *s = chr->opaque;
1576 DWORD len, ret, size, err;
1577
1578 len = len1;
1579 ZeroMemory(&s->osend, sizeof(s->osend));
1580 s->osend.hEvent = s->hsend;
1581 while (len > 0) {
1582 if (s->hsend)
1583 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1584 else
1585 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1586 if (!ret) {
1587 err = GetLastError();
1588 if (err == ERROR_IO_PENDING) {
1589 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1590 if (ret) {
1591 buf += size;
1592 len -= size;
1593 } else {
1594 break;
1595 }
1596 } else {
1597 break;
1598 }
1599 } else {
1600 buf += size;
1601 len -= size;
1602 }
1603 }
1604 return len1 - len;
1605}
1606
1607static int win_chr_read_poll(CharDriverState *chr)
1608{
1609 WinCharState *s = chr->opaque;
1610
Anthony Liguori909cda12011-08-15 11:17:31 -05001611 s->max_size = qemu_chr_be_can_write(chr);
aliguori6f97dba2008-10-31 18:49:55 +00001612 return s->max_size;
1613}
1614
1615static void win_chr_readfile(CharDriverState *chr)
1616{
1617 WinCharState *s = chr->opaque;
1618 int ret, err;
Amit Shah9bd78542009-11-03 19:59:54 +05301619 uint8_t buf[READ_BUF_LEN];
aliguori6f97dba2008-10-31 18:49:55 +00001620 DWORD size;
1621
1622 ZeroMemory(&s->orecv, sizeof(s->orecv));
1623 s->orecv.hEvent = s->hrecv;
1624 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1625 if (!ret) {
1626 err = GetLastError();
1627 if (err == ERROR_IO_PENDING) {
1628 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1629 }
1630 }
1631
1632 if (size > 0) {
Anthony Liguorifa5efcc2011-08-15 11:17:30 -05001633 qemu_chr_be_write(chr, buf, size);
aliguori6f97dba2008-10-31 18:49:55 +00001634 }
1635}
1636
1637static void win_chr_read(CharDriverState *chr)
1638{
1639 WinCharState *s = chr->opaque;
1640
1641 if (s->len > s->max_size)
1642 s->len = s->max_size;
1643 if (s->len == 0)
1644 return;
1645
1646 win_chr_readfile(chr);
1647}
1648
1649static int win_chr_poll(void *opaque)
1650{
1651 CharDriverState *chr = opaque;
1652 WinCharState *s = chr->opaque;
1653 COMSTAT status;
1654 DWORD comerr;
1655
1656 ClearCommError(s->hcom, &comerr, &status);
1657 if (status.cbInQue > 0) {
1658 s->len = status.cbInQue;
1659 win_chr_read_poll(chr);
1660 win_chr_read(chr);
1661 return 1;
1662 }
1663 return 0;
1664}
1665
Kevin Wolf6e1db572011-06-01 13:29:11 +02001666static int qemu_chr_open_win(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +00001667{
Gerd Hoffmann48b76492009-09-10 10:58:48 +02001668 const char *filename = qemu_opt_get(opts, "path");
aliguori6f97dba2008-10-31 18:49:55 +00001669 CharDriverState *chr;
1670 WinCharState *s;
1671
Anthony Liguori7267c092011-08-20 22:09:37 -05001672 chr = g_malloc0(sizeof(CharDriverState));
1673 s = g_malloc0(sizeof(WinCharState));
aliguori6f97dba2008-10-31 18:49:55 +00001674 chr->opaque = s;
1675 chr->chr_write = win_chr_write;
1676 chr->chr_close = win_chr_close;
1677
1678 if (win_chr_init(chr, filename) < 0) {
Stefan Weil2e02e182011-10-07 07:38:46 +02001679 g_free(s);
1680 g_free(chr);
Kevin Wolf6e1db572011-06-01 13:29:11 +02001681 return -EIO;
aliguori6f97dba2008-10-31 18:49:55 +00001682 }
Amit Shah127338e2009-11-03 19:59:56 +05301683 qemu_chr_generic_open(chr);
Kevin Wolf6e1db572011-06-01 13:29:11 +02001684
1685 *_chr = chr;
1686 return 0;
aliguori6f97dba2008-10-31 18:49:55 +00001687}
1688
1689static int win_chr_pipe_poll(void *opaque)
1690{
1691 CharDriverState *chr = opaque;
1692 WinCharState *s = chr->opaque;
1693 DWORD size;
1694
1695 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1696 if (size > 0) {
1697 s->len = size;
1698 win_chr_read_poll(chr);
1699 win_chr_read(chr);
1700 return 1;
1701 }
1702 return 0;
1703}
1704
1705static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1706{
1707 WinCharState *s = chr->opaque;
1708 OVERLAPPED ov;
1709 int ret;
1710 DWORD size;
1711 char openname[256];
1712
1713 s->fpipe = TRUE;
1714
1715 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1716 if (!s->hsend) {
1717 fprintf(stderr, "Failed CreateEvent\n");
1718 goto fail;
1719 }
1720 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1721 if (!s->hrecv) {
1722 fprintf(stderr, "Failed CreateEvent\n");
1723 goto fail;
1724 }
1725
1726 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1727 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1728 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1729 PIPE_WAIT,
1730 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1731 if (s->hcom == INVALID_HANDLE_VALUE) {
1732 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1733 s->hcom = NULL;
1734 goto fail;
1735 }
1736
1737 ZeroMemory(&ov, sizeof(ov));
1738 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1739 ret = ConnectNamedPipe(s->hcom, &ov);
1740 if (ret) {
1741 fprintf(stderr, "Failed ConnectNamedPipe\n");
1742 goto fail;
1743 }
1744
1745 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1746 if (!ret) {
1747 fprintf(stderr, "Failed GetOverlappedResult\n");
1748 if (ov.hEvent) {
1749 CloseHandle(ov.hEvent);
1750 ov.hEvent = NULL;
1751 }
1752 goto fail;
1753 }
1754
1755 if (ov.hEvent) {
1756 CloseHandle(ov.hEvent);
1757 ov.hEvent = NULL;
1758 }
1759 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1760 return 0;
1761
1762 fail:
1763 win_chr_close(chr);
1764 return -1;
1765}
1766
1767
Kevin Wolf6e1db572011-06-01 13:29:11 +02001768static int qemu_chr_open_win_pipe(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +00001769{
Gerd Hoffmann7d315442009-09-10 10:58:36 +02001770 const char *filename = qemu_opt_get(opts, "path");
aliguori6f97dba2008-10-31 18:49:55 +00001771 CharDriverState *chr;
1772 WinCharState *s;
1773
Anthony Liguori7267c092011-08-20 22:09:37 -05001774 chr = g_malloc0(sizeof(CharDriverState));
1775 s = g_malloc0(sizeof(WinCharState));
aliguori6f97dba2008-10-31 18:49:55 +00001776 chr->opaque = s;
1777 chr->chr_write = win_chr_write;
1778 chr->chr_close = win_chr_close;
1779
1780 if (win_chr_pipe_init(chr, filename) < 0) {
Stefan Weil2e02e182011-10-07 07:38:46 +02001781 g_free(s);
1782 g_free(chr);
Kevin Wolf6e1db572011-06-01 13:29:11 +02001783 return -EIO;
aliguori6f97dba2008-10-31 18:49:55 +00001784 }
Amit Shah127338e2009-11-03 19:59:56 +05301785 qemu_chr_generic_open(chr);
Kevin Wolf6e1db572011-06-01 13:29:11 +02001786
1787 *_chr = chr;
1788 return 0;
aliguori6f97dba2008-10-31 18:49:55 +00001789}
1790
Blue Swirlaad04cd2011-07-23 19:26:08 +00001791static int qemu_chr_open_win_file(HANDLE fd_out, CharDriverState **pchr)
aliguori6f97dba2008-10-31 18:49:55 +00001792{
1793 CharDriverState *chr;
1794 WinCharState *s;
1795
Anthony Liguori7267c092011-08-20 22:09:37 -05001796 chr = g_malloc0(sizeof(CharDriverState));
1797 s = g_malloc0(sizeof(WinCharState));
aliguori6f97dba2008-10-31 18:49:55 +00001798 s->hcom = fd_out;
1799 chr->opaque = s;
1800 chr->chr_write = win_chr_write;
Amit Shah127338e2009-11-03 19:59:56 +05301801 qemu_chr_generic_open(chr);
Blue Swirlaad04cd2011-07-23 19:26:08 +00001802 *pchr = chr;
1803 return 0;
aliguori6f97dba2008-10-31 18:49:55 +00001804}
1805
Blue Swirlaad04cd2011-07-23 19:26:08 +00001806static int qemu_chr_open_win_con(QemuOpts *opts, CharDriverState **chr)
aliguori6f97dba2008-10-31 18:49:55 +00001807{
Kevin Wolf6e1db572011-06-01 13:29:11 +02001808 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE), chr);
aliguori6f97dba2008-10-31 18:49:55 +00001809}
1810
Kevin Wolf6e1db572011-06-01 13:29:11 +02001811static int qemu_chr_open_win_file_out(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +00001812{
Gerd Hoffmann7d315442009-09-10 10:58:36 +02001813 const char *file_out = qemu_opt_get(opts, "path");
aliguori6f97dba2008-10-31 18:49:55 +00001814 HANDLE fd_out;
1815
1816 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1817 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
Kevin Wolf6e1db572011-06-01 13:29:11 +02001818 if (fd_out == INVALID_HANDLE_VALUE) {
1819 return -EIO;
1820 }
aliguori6f97dba2008-10-31 18:49:55 +00001821
Kevin Wolf6e1db572011-06-01 13:29:11 +02001822 return qemu_chr_open_win_file(fd_out, _chr);
aliguori6f97dba2008-10-31 18:49:55 +00001823}
Fabien Chouteaudb418a02011-10-06 16:37:51 +02001824
1825static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1826{
1827 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1828 DWORD dwSize;
1829 int len1;
1830
1831 len1 = len;
1832
1833 while (len1 > 0) {
1834 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1835 break;
1836 }
1837 buf += dwSize;
1838 len1 -= dwSize;
1839 }
1840
1841 return len - len1;
1842}
1843
1844static void win_stdio_wait_func(void *opaque)
1845{
1846 CharDriverState *chr = opaque;
1847 WinStdioCharState *stdio = chr->opaque;
1848 INPUT_RECORD buf[4];
1849 int ret;
1850 DWORD dwSize;
1851 int i;
1852
1853 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1854 &dwSize);
1855
1856 if (!ret) {
1857 /* Avoid error storm */
1858 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1859 return;
1860 }
1861
1862 for (i = 0; i < dwSize; i++) {
1863 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1864
1865 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1866 int j;
1867 if (kev->uChar.AsciiChar != 0) {
1868 for (j = 0; j < kev->wRepeatCount; j++) {
1869 if (qemu_chr_be_can_write(chr)) {
1870 uint8_t c = kev->uChar.AsciiChar;
1871 qemu_chr_be_write(chr, &c, 1);
1872 }
1873 }
1874 }
1875 }
1876 }
1877}
1878
1879static DWORD WINAPI win_stdio_thread(LPVOID param)
1880{
1881 CharDriverState *chr = param;
1882 WinStdioCharState *stdio = chr->opaque;
1883 int ret;
1884 DWORD dwSize;
1885
1886 while (1) {
1887
1888 /* Wait for one byte */
1889 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
1890
1891 /* Exit in case of error, continue if nothing read */
1892 if (!ret) {
1893 break;
1894 }
1895 if (!dwSize) {
1896 continue;
1897 }
1898
1899 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1900 if (stdio->win_stdio_buf == '\r') {
1901 continue;
1902 }
1903
1904 /* Signal the main thread and wait until the byte was eaten */
1905 if (!SetEvent(stdio->hInputReadyEvent)) {
1906 break;
1907 }
1908 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
1909 != WAIT_OBJECT_0) {
1910 break;
1911 }
1912 }
1913
1914 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
1915 return 0;
1916}
1917
1918static void win_stdio_thread_wait_func(void *opaque)
1919{
1920 CharDriverState *chr = opaque;
1921 WinStdioCharState *stdio = chr->opaque;
1922
1923 if (qemu_chr_be_can_write(chr)) {
1924 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
1925 }
1926
1927 SetEvent(stdio->hInputDoneEvent);
1928}
1929
1930static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
1931{
1932 WinStdioCharState *stdio = chr->opaque;
1933 DWORD dwMode = 0;
1934
1935 GetConsoleMode(stdio->hStdIn, &dwMode);
1936
1937 if (echo) {
1938 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
1939 } else {
1940 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
1941 }
1942}
1943
1944static void win_stdio_close(CharDriverState *chr)
1945{
1946 WinStdioCharState *stdio = chr->opaque;
1947
1948 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
1949 CloseHandle(stdio->hInputReadyEvent);
1950 }
1951 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
1952 CloseHandle(stdio->hInputDoneEvent);
1953 }
1954 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
1955 TerminateThread(stdio->hInputThread, 0);
1956 }
1957
1958 g_free(chr->opaque);
1959 g_free(chr);
1960 stdio_nb_clients--;
1961}
1962
1963static int qemu_chr_open_win_stdio(QemuOpts *opts, CharDriverState **_chr)
1964{
1965 CharDriverState *chr;
1966 WinStdioCharState *stdio;
1967 DWORD dwMode;
1968 int is_console = 0;
1969
1970 if (stdio_nb_clients >= STDIO_MAX_CLIENTS
1971 || ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
1972 return -EIO;
1973 }
1974
1975 chr = g_malloc0(sizeof(CharDriverState));
1976 stdio = g_malloc0(sizeof(WinStdioCharState));
1977
1978 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
1979 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
1980 fprintf(stderr, "cannot open stdio: invalid handle\n");
1981 exit(1);
1982 }
1983
1984 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
1985
1986 chr->opaque = stdio;
1987 chr->chr_write = win_stdio_write;
1988 chr->chr_close = win_stdio_close;
1989
1990 if (stdio_nb_clients == 0) {
1991 if (is_console) {
1992 if (qemu_add_wait_object(stdio->hStdIn,
1993 win_stdio_wait_func, chr)) {
1994 fprintf(stderr, "qemu_add_wait_object: failed\n");
1995 }
1996 } else {
1997 DWORD dwId;
1998
1999 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2000 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2001 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2002 chr, 0, &dwId);
2003
2004 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2005 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2006 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2007 fprintf(stderr, "cannot create stdio thread or event\n");
2008 exit(1);
2009 }
2010 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2011 win_stdio_thread_wait_func, chr)) {
2012 fprintf(stderr, "qemu_add_wait_object: failed\n");
2013 }
2014 }
2015 }
2016
2017 dwMode |= ENABLE_LINE_INPUT;
2018
2019 stdio_clients[stdio_nb_clients++] = chr;
2020 if (stdio_nb_clients == 1 && is_console) {
2021 /* set the terminal in raw mode */
2022 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2023 dwMode |= ENABLE_PROCESSED_INPUT;
2024 }
2025
2026 SetConsoleMode(stdio->hStdIn, dwMode);
2027
2028 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2029 qemu_chr_fe_set_echo(chr, false);
2030
2031 *_chr = chr;
2032
2033 return 0;
2034}
aliguori6f97dba2008-10-31 18:49:55 +00002035#endif /* !_WIN32 */
2036
2037/***********************************************************/
2038/* UDP Net console */
2039
2040typedef struct {
2041 int fd;
Amit Shah9bd78542009-11-03 19:59:54 +05302042 uint8_t buf[READ_BUF_LEN];
aliguori6f97dba2008-10-31 18:49:55 +00002043 int bufcnt;
2044 int bufptr;
2045 int max_size;
2046} NetCharDriver;
2047
2048static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2049{
2050 NetCharDriver *s = chr->opaque;
2051
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002052 return send(s->fd, (const void *)buf, len, 0);
aliguori6f97dba2008-10-31 18:49:55 +00002053}
2054
2055static int udp_chr_read_poll(void *opaque)
2056{
2057 CharDriverState *chr = opaque;
2058 NetCharDriver *s = chr->opaque;
2059
Anthony Liguori909cda12011-08-15 11:17:31 -05002060 s->max_size = qemu_chr_be_can_write(chr);
aliguori6f97dba2008-10-31 18:49:55 +00002061
2062 /* If there were any stray characters in the queue process them
2063 * first
2064 */
2065 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
Anthony Liguorifa5efcc2011-08-15 11:17:30 -05002066 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
aliguori6f97dba2008-10-31 18:49:55 +00002067 s->bufptr++;
Anthony Liguori909cda12011-08-15 11:17:31 -05002068 s->max_size = qemu_chr_be_can_write(chr);
aliguori6f97dba2008-10-31 18:49:55 +00002069 }
2070 return s->max_size;
2071}
2072
2073static void udp_chr_read(void *opaque)
2074{
2075 CharDriverState *chr = opaque;
2076 NetCharDriver *s = chr->opaque;
2077
2078 if (s->max_size == 0)
2079 return;
Blue Swirl00aa0042011-07-23 20:04:29 +00002080 s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
aliguori6f97dba2008-10-31 18:49:55 +00002081 s->bufptr = s->bufcnt;
2082 if (s->bufcnt <= 0)
2083 return;
2084
2085 s->bufptr = 0;
2086 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
Anthony Liguorifa5efcc2011-08-15 11:17:30 -05002087 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
aliguori6f97dba2008-10-31 18:49:55 +00002088 s->bufptr++;
Anthony Liguori909cda12011-08-15 11:17:31 -05002089 s->max_size = qemu_chr_be_can_write(chr);
aliguori6f97dba2008-10-31 18:49:55 +00002090 }
2091}
2092
2093static void udp_chr_update_read_handler(CharDriverState *chr)
2094{
2095 NetCharDriver *s = chr->opaque;
2096
2097 if (s->fd >= 0) {
2098 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
2099 udp_chr_read, NULL, chr);
2100 }
2101}
2102
aliguori819f56b2009-03-28 17:58:14 +00002103static void udp_chr_close(CharDriverState *chr)
2104{
2105 NetCharDriver *s = chr->opaque;
2106 if (s->fd >= 0) {
Marcelo Tosatti069c1592011-09-16 18:19:55 -03002107 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
aliguori819f56b2009-03-28 17:58:14 +00002108 closesocket(s->fd);
2109 }
Anthony Liguori7267c092011-08-20 22:09:37 -05002110 g_free(s);
Hans de Goedea425d232011-11-19 10:22:43 +01002111 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori819f56b2009-03-28 17:58:14 +00002112}
2113
Kevin Wolf6e1db572011-06-01 13:29:11 +02002114static int qemu_chr_open_udp(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +00002115{
2116 CharDriverState *chr = NULL;
2117 NetCharDriver *s = NULL;
2118 int fd = -1;
Kevin Wolf6e1db572011-06-01 13:29:11 +02002119 int ret;
aliguori6f97dba2008-10-31 18:49:55 +00002120
Anthony Liguori7267c092011-08-20 22:09:37 -05002121 chr = g_malloc0(sizeof(CharDriverState));
2122 s = g_malloc0(sizeof(NetCharDriver));
aliguori6f97dba2008-10-31 18:49:55 +00002123
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002124 fd = inet_dgram_opts(opts);
aliguori6f97dba2008-10-31 18:49:55 +00002125 if (fd < 0) {
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002126 fprintf(stderr, "inet_dgram_opts failed\n");
Kevin Wolf6e1db572011-06-01 13:29:11 +02002127 ret = -errno;
aliguori6f97dba2008-10-31 18:49:55 +00002128 goto return_err;
2129 }
2130
2131 s->fd = fd;
2132 s->bufcnt = 0;
2133 s->bufptr = 0;
2134 chr->opaque = s;
2135 chr->chr_write = udp_chr_write;
2136 chr->chr_update_read_handler = udp_chr_update_read_handler;
aliguori819f56b2009-03-28 17:58:14 +00002137 chr->chr_close = udp_chr_close;
Kevin Wolf6e1db572011-06-01 13:29:11 +02002138
2139 *_chr = chr;
2140 return 0;
aliguori6f97dba2008-10-31 18:49:55 +00002141
2142return_err:
Anthony Liguori7267c092011-08-20 22:09:37 -05002143 g_free(chr);
2144 g_free(s);
Kevin Wolf6e1db572011-06-01 13:29:11 +02002145 if (fd >= 0) {
aliguori6f97dba2008-10-31 18:49:55 +00002146 closesocket(fd);
Kevin Wolf6e1db572011-06-01 13:29:11 +02002147 }
2148 return ret;
aliguori6f97dba2008-10-31 18:49:55 +00002149}
2150
2151/***********************************************************/
2152/* TCP Net console */
2153
2154typedef struct {
2155 int fd, listen_fd;
2156 int connected;
2157 int max_size;
2158 int do_telnetopt;
2159 int do_nodelay;
2160 int is_unix;
Mark McLoughlin7d174052009-07-22 09:11:39 +01002161 int msgfd;
aliguori6f97dba2008-10-31 18:49:55 +00002162} TCPCharDriver;
2163
2164static void tcp_chr_accept(void *opaque);
2165
2166static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2167{
2168 TCPCharDriver *s = chr->opaque;
2169 if (s->connected) {
2170 return send_all(s->fd, buf, len);
2171 } else {
2172 /* XXX: indicate an error ? */
2173 return len;
2174 }
2175}
2176
2177static int tcp_chr_read_poll(void *opaque)
2178{
2179 CharDriverState *chr = opaque;
2180 TCPCharDriver *s = chr->opaque;
2181 if (!s->connected)
2182 return 0;
Anthony Liguori909cda12011-08-15 11:17:31 -05002183 s->max_size = qemu_chr_be_can_write(chr);
aliguori6f97dba2008-10-31 18:49:55 +00002184 return s->max_size;
2185}
2186
2187#define IAC 255
2188#define IAC_BREAK 243
2189static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2190 TCPCharDriver *s,
2191 uint8_t *buf, int *size)
2192{
2193 /* Handle any telnet client's basic IAC options to satisfy char by
2194 * char mode with no echo. All IAC options will be removed from
2195 * the buf and the do_telnetopt variable will be used to track the
2196 * state of the width of the IAC information.
2197 *
2198 * IAC commands come in sets of 3 bytes with the exception of the
2199 * "IAC BREAK" command and the double IAC.
2200 */
2201
2202 int i;
2203 int j = 0;
2204
2205 for (i = 0; i < *size; i++) {
2206 if (s->do_telnetopt > 1) {
2207 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2208 /* Double IAC means send an IAC */
2209 if (j != i)
2210 buf[j] = buf[i];
2211 j++;
2212 s->do_telnetopt = 1;
2213 } else {
2214 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2215 /* Handle IAC break commands by sending a serial break */
Hans de Goedea425d232011-11-19 10:22:43 +01002216 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
aliguori6f97dba2008-10-31 18:49:55 +00002217 s->do_telnetopt++;
2218 }
2219 s->do_telnetopt++;
2220 }
2221 if (s->do_telnetopt >= 4) {
2222 s->do_telnetopt = 1;
2223 }
2224 } else {
2225 if ((unsigned char)buf[i] == IAC) {
2226 s->do_telnetopt = 2;
2227 } else {
2228 if (j != i)
2229 buf[j] = buf[i];
2230 j++;
2231 }
2232 }
2233 }
2234 *size = j;
2235}
2236
Mark McLoughlin7d174052009-07-22 09:11:39 +01002237static int tcp_get_msgfd(CharDriverState *chr)
2238{
2239 TCPCharDriver *s = chr->opaque;
Paolo Bonzinie53f27b2010-04-16 17:25:23 +02002240 int fd = s->msgfd;
2241 s->msgfd = -1;
2242 return fd;
Mark McLoughlin7d174052009-07-22 09:11:39 +01002243}
2244
Anthony Liguori73bcc2a2009-07-27 14:55:25 -05002245#ifndef _WIN32
Mark McLoughlin7d174052009-07-22 09:11:39 +01002246static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2247{
2248 TCPCharDriver *s = chr->opaque;
2249 struct cmsghdr *cmsg;
2250
2251 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2252 int fd;
2253
2254 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2255 cmsg->cmsg_level != SOL_SOCKET ||
2256 cmsg->cmsg_type != SCM_RIGHTS)
2257 continue;
2258
2259 fd = *((int *)CMSG_DATA(cmsg));
2260 if (fd < 0)
2261 continue;
2262
2263 if (s->msgfd != -1)
2264 close(s->msgfd);
2265 s->msgfd = fd;
2266 }
2267}
2268
Mark McLoughlin9977c892009-07-22 09:11:38 +01002269static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2270{
2271 TCPCharDriver *s = chr->opaque;
Blue Swirl7cba04f2009-08-01 10:13:20 +00002272 struct msghdr msg = { NULL, };
Mark McLoughlin9977c892009-07-22 09:11:38 +01002273 struct iovec iov[1];
Mark McLoughlin7d174052009-07-22 09:11:39 +01002274 union {
2275 struct cmsghdr cmsg;
2276 char control[CMSG_SPACE(sizeof(int))];
2277 } msg_control;
2278 ssize_t ret;
Mark McLoughlin9977c892009-07-22 09:11:38 +01002279
2280 iov[0].iov_base = buf;
2281 iov[0].iov_len = len;
2282
2283 msg.msg_iov = iov;
2284 msg.msg_iovlen = 1;
Mark McLoughlin7d174052009-07-22 09:11:39 +01002285 msg.msg_control = &msg_control;
2286 msg.msg_controllen = sizeof(msg_control);
Mark McLoughlin9977c892009-07-22 09:11:38 +01002287
Mark McLoughlin7d174052009-07-22 09:11:39 +01002288 ret = recvmsg(s->fd, &msg, 0);
2289 if (ret > 0 && s->is_unix)
2290 unix_process_msgfd(chr, &msg);
2291
2292 return ret;
Mark McLoughlin9977c892009-07-22 09:11:38 +01002293}
2294#else
2295static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2296{
2297 TCPCharDriver *s = chr->opaque;
Blue Swirl00aa0042011-07-23 20:04:29 +00002298 return qemu_recv(s->fd, buf, len, 0);
Mark McLoughlin9977c892009-07-22 09:11:38 +01002299}
2300#endif
2301
aliguori6f97dba2008-10-31 18:49:55 +00002302static void tcp_chr_read(void *opaque)
2303{
2304 CharDriverState *chr = opaque;
2305 TCPCharDriver *s = chr->opaque;
Amit Shah9bd78542009-11-03 19:59:54 +05302306 uint8_t buf[READ_BUF_LEN];
aliguori6f97dba2008-10-31 18:49:55 +00002307 int len, size;
2308
2309 if (!s->connected || s->max_size <= 0)
2310 return;
2311 len = sizeof(buf);
2312 if (len > s->max_size)
2313 len = s->max_size;
Mark McLoughlin9977c892009-07-22 09:11:38 +01002314 size = tcp_chr_recv(chr, (void *)buf, len);
aliguori6f97dba2008-10-31 18:49:55 +00002315 if (size == 0) {
2316 /* connection closed */
2317 s->connected = 0;
2318 if (s->listen_fd >= 0) {
Marcelo Tosatti069c1592011-09-16 18:19:55 -03002319 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
aliguori6f97dba2008-10-31 18:49:55 +00002320 }
Marcelo Tosatti069c1592011-09-16 18:19:55 -03002321 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
aliguori6f97dba2008-10-31 18:49:55 +00002322 closesocket(s->fd);
2323 s->fd = -1;
Hans de Goedea425d232011-11-19 10:22:43 +01002324 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori6f97dba2008-10-31 18:49:55 +00002325 } else if (size > 0) {
2326 if (s->do_telnetopt)
2327 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2328 if (size > 0)
Anthony Liguorifa5efcc2011-08-15 11:17:30 -05002329 qemu_chr_be_write(chr, buf, size);
aliguori6f97dba2008-10-31 18:49:55 +00002330 }
2331}
2332
Blue Swirl68c18d12010-08-15 09:46:24 +00002333#ifndef _WIN32
2334CharDriverState *qemu_chr_open_eventfd(int eventfd)
2335{
Cam Macdonell6cbf4c82010-07-27 10:54:13 -06002336 return qemu_chr_open_fd(eventfd, eventfd);
Cam Macdonell6cbf4c82010-07-27 10:54:13 -06002337}
Blue Swirl68c18d12010-08-15 09:46:24 +00002338#endif
Cam Macdonell6cbf4c82010-07-27 10:54:13 -06002339
aliguori6f97dba2008-10-31 18:49:55 +00002340static void tcp_chr_connect(void *opaque)
2341{
2342 CharDriverState *chr = opaque;
2343 TCPCharDriver *s = chr->opaque;
2344
2345 s->connected = 1;
2346 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2347 tcp_chr_read, NULL, chr);
Amit Shah127338e2009-11-03 19:59:56 +05302348 qemu_chr_generic_open(chr);
aliguori6f97dba2008-10-31 18:49:55 +00002349}
2350
2351#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2352static void tcp_chr_telnet_init(int fd)
2353{
2354 char buf[3];
2355 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2356 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2357 send(fd, (char *)buf, 3, 0);
2358 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2359 send(fd, (char *)buf, 3, 0);
2360 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2361 send(fd, (char *)buf, 3, 0);
2362 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2363 send(fd, (char *)buf, 3, 0);
2364}
2365
2366static void socket_set_nodelay(int fd)
2367{
2368 int val = 1;
2369 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2370}
2371
Daniel P. Berrange13661082011-06-23 13:31:42 +01002372static int tcp_chr_add_client(CharDriverState *chr, int fd)
2373{
2374 TCPCharDriver *s = chr->opaque;
2375 if (s->fd != -1)
2376 return -1;
2377
2378 socket_set_nonblock(fd);
2379 if (s->do_nodelay)
2380 socket_set_nodelay(fd);
2381 s->fd = fd;
Marcelo Tosatti069c1592011-09-16 18:19:55 -03002382 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
Daniel P. Berrange13661082011-06-23 13:31:42 +01002383 tcp_chr_connect(chr);
2384
2385 return 0;
2386}
2387
aliguori6f97dba2008-10-31 18:49:55 +00002388static void tcp_chr_accept(void *opaque)
2389{
2390 CharDriverState *chr = opaque;
2391 TCPCharDriver *s = chr->opaque;
2392 struct sockaddr_in saddr;
2393#ifndef _WIN32
2394 struct sockaddr_un uaddr;
2395#endif
2396 struct sockaddr *addr;
2397 socklen_t len;
2398 int fd;
2399
2400 for(;;) {
2401#ifndef _WIN32
2402 if (s->is_unix) {
2403 len = sizeof(uaddr);
2404 addr = (struct sockaddr *)&uaddr;
2405 } else
2406#endif
2407 {
2408 len = sizeof(saddr);
2409 addr = (struct sockaddr *)&saddr;
2410 }
Kevin Wolf40ff6d72009-12-02 12:24:42 +01002411 fd = qemu_accept(s->listen_fd, addr, &len);
aliguori6f97dba2008-10-31 18:49:55 +00002412 if (fd < 0 && errno != EINTR) {
2413 return;
2414 } else if (fd >= 0) {
2415 if (s->do_telnetopt)
2416 tcp_chr_telnet_init(fd);
2417 break;
2418 }
2419 }
Daniel P. Berrange13661082011-06-23 13:31:42 +01002420 if (tcp_chr_add_client(chr, fd) < 0)
2421 close(fd);
aliguori6f97dba2008-10-31 18:49:55 +00002422}
2423
2424static void tcp_chr_close(CharDriverState *chr)
2425{
2426 TCPCharDriver *s = chr->opaque;
aliguori819f56b2009-03-28 17:58:14 +00002427 if (s->fd >= 0) {
Marcelo Tosatti069c1592011-09-16 18:19:55 -03002428 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
aliguori6f97dba2008-10-31 18:49:55 +00002429 closesocket(s->fd);
aliguori819f56b2009-03-28 17:58:14 +00002430 }
2431 if (s->listen_fd >= 0) {
Marcelo Tosatti069c1592011-09-16 18:19:55 -03002432 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
aliguori6f97dba2008-10-31 18:49:55 +00002433 closesocket(s->listen_fd);
aliguori819f56b2009-03-28 17:58:14 +00002434 }
Anthony Liguori7267c092011-08-20 22:09:37 -05002435 g_free(s);
Hans de Goedea425d232011-11-19 10:22:43 +01002436 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
aliguori6f97dba2008-10-31 18:49:55 +00002437}
2438
Kevin Wolf6e1db572011-06-01 13:29:11 +02002439static int qemu_chr_open_socket(QemuOpts *opts, CharDriverState **_chr)
aliguori6f97dba2008-10-31 18:49:55 +00002440{
2441 CharDriverState *chr = NULL;
2442 TCPCharDriver *s = NULL;
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002443 int fd = -1;
2444 int is_listen;
2445 int is_waitconnect;
2446 int do_nodelay;
2447 int is_unix;
2448 int is_telnet;
Kevin Wolf6e1db572011-06-01 13:29:11 +02002449 int ret;
aliguori6f97dba2008-10-31 18:49:55 +00002450
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002451 is_listen = qemu_opt_get_bool(opts, "server", 0);
2452 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2453 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2454 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2455 is_unix = qemu_opt_get(opts, "path") != NULL;
aliguori6f97dba2008-10-31 18:49:55 +00002456 if (!is_listen)
2457 is_waitconnect = 0;
2458
Anthony Liguori7267c092011-08-20 22:09:37 -05002459 chr = g_malloc0(sizeof(CharDriverState));
2460 s = g_malloc0(sizeof(TCPCharDriver));
aliguori6f97dba2008-10-31 18:49:55 +00002461
aliguorif07b6002008-11-11 20:54:09 +00002462 if (is_unix) {
2463 if (is_listen) {
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002464 fd = unix_listen_opts(opts);
aliguorif07b6002008-11-11 20:54:09 +00002465 } else {
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002466 fd = unix_connect_opts(opts);
aliguorif07b6002008-11-11 20:54:09 +00002467 }
2468 } else {
2469 if (is_listen) {
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002470 fd = inet_listen_opts(opts, 0);
aliguorif07b6002008-11-11 20:54:09 +00002471 } else {
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002472 fd = inet_connect_opts(opts);
aliguorif07b6002008-11-11 20:54:09 +00002473 }
2474 }
Kevin Wolf6e1db572011-06-01 13:29:11 +02002475 if (fd < 0) {
2476 ret = -errno;
aliguori6f97dba2008-10-31 18:49:55 +00002477 goto fail;
Kevin Wolf6e1db572011-06-01 13:29:11 +02002478 }
aliguori6f97dba2008-10-31 18:49:55 +00002479
2480 if (!is_waitconnect)
2481 socket_set_nonblock(fd);
2482
2483 s->connected = 0;
2484 s->fd = -1;
2485 s->listen_fd = -1;
Mark McLoughlin7d174052009-07-22 09:11:39 +01002486 s->msgfd = -1;
aliguori6f97dba2008-10-31 18:49:55 +00002487 s->is_unix = is_unix;
2488 s->do_nodelay = do_nodelay && !is_unix;
2489
2490 chr->opaque = s;
2491 chr->chr_write = tcp_chr_write;
2492 chr->chr_close = tcp_chr_close;
Mark McLoughlin7d174052009-07-22 09:11:39 +01002493 chr->get_msgfd = tcp_get_msgfd;
Daniel P. Berrange13661082011-06-23 13:31:42 +01002494 chr->chr_add_client = tcp_chr_add_client;
aliguori6f97dba2008-10-31 18:49:55 +00002495
2496 if (is_listen) {
aliguori6f97dba2008-10-31 18:49:55 +00002497 s->listen_fd = fd;
Marcelo Tosatti069c1592011-09-16 18:19:55 -03002498 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
aliguori6f97dba2008-10-31 18:49:55 +00002499 if (is_telnet)
2500 s->do_telnetopt = 1;
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002501
aliguori6f97dba2008-10-31 18:49:55 +00002502 } else {
aliguorif07b6002008-11-11 20:54:09 +00002503 s->connected = 1;
aliguori6f97dba2008-10-31 18:49:55 +00002504 s->fd = fd;
2505 socket_set_nodelay(fd);
aliguorif07b6002008-11-11 20:54:09 +00002506 tcp_chr_connect(chr);
aliguori6f97dba2008-10-31 18:49:55 +00002507 }
2508
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002509 /* for "info chardev" monitor command */
Anthony Liguori7267c092011-08-20 22:09:37 -05002510 chr->filename = g_malloc(256);
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002511 if (is_unix) {
2512 snprintf(chr->filename, 256, "unix:%s%s",
2513 qemu_opt_get(opts, "path"),
2514 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2515 } else if (is_telnet) {
2516 snprintf(chr->filename, 256, "telnet:%s:%s%s",
2517 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2518 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2519 } else {
2520 snprintf(chr->filename, 256, "tcp:%s:%s%s",
2521 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2522 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2523 }
2524
aliguori6f97dba2008-10-31 18:49:55 +00002525 if (is_listen && is_waitconnect) {
aliguorif07b6002008-11-11 20:54:09 +00002526 printf("QEMU waiting for connection on: %s\n",
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002527 chr->filename);
aliguori6f97dba2008-10-31 18:49:55 +00002528 tcp_chr_accept(chr);
2529 socket_set_nonblock(s->listen_fd);
2530 }
Kevin Wolf6e1db572011-06-01 13:29:11 +02002531
2532 *_chr = chr;
2533 return 0;
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002534
aliguori6f97dba2008-10-31 18:49:55 +00002535 fail:
2536 if (fd >= 0)
2537 closesocket(fd);
Anthony Liguori7267c092011-08-20 22:09:37 -05002538 g_free(s);
2539 g_free(chr);
Kevin Wolf6e1db572011-06-01 13:29:11 +02002540 return ret;
aliguori6f97dba2008-10-31 18:49:55 +00002541}
2542
Luiz Capitulino999bd672010-10-22 16:09:05 -02002543/***********************************************************/
2544/* Memory chardev */
2545typedef struct {
2546 size_t outbuf_size;
2547 size_t outbuf_capacity;
2548 uint8_t *outbuf;
2549} MemoryDriver;
2550
2551static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2552{
2553 MemoryDriver *d = chr->opaque;
2554
2555 /* TODO: the QString implementation has the same code, we should
2556 * introduce a generic way to do this in cutils.c */
2557 if (d->outbuf_capacity < d->outbuf_size + len) {
2558 /* grow outbuf */
2559 d->outbuf_capacity += len;
2560 d->outbuf_capacity *= 2;
Anthony Liguori7267c092011-08-20 22:09:37 -05002561 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
Luiz Capitulino999bd672010-10-22 16:09:05 -02002562 }
2563
2564 memcpy(d->outbuf + d->outbuf_size, buf, len);
2565 d->outbuf_size += len;
2566
2567 return len;
2568}
2569
2570void qemu_chr_init_mem(CharDriverState *chr)
2571{
2572 MemoryDriver *d;
2573
Anthony Liguori7267c092011-08-20 22:09:37 -05002574 d = g_malloc(sizeof(*d));
Luiz Capitulino999bd672010-10-22 16:09:05 -02002575 d->outbuf_size = 0;
2576 d->outbuf_capacity = 4096;
Anthony Liguori7267c092011-08-20 22:09:37 -05002577 d->outbuf = g_malloc0(d->outbuf_capacity);
Luiz Capitulino999bd672010-10-22 16:09:05 -02002578
2579 memset(chr, 0, sizeof(*chr));
2580 chr->opaque = d;
2581 chr->chr_write = mem_chr_write;
2582}
2583
2584QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2585{
2586 MemoryDriver *d = chr->opaque;
2587 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2588}
2589
Anthony Liguori70f24fb2011-08-15 11:17:38 -05002590/* NOTE: this driver can not be closed with qemu_chr_delete()! */
Luiz Capitulino999bd672010-10-22 16:09:05 -02002591void qemu_chr_close_mem(CharDriverState *chr)
2592{
2593 MemoryDriver *d = chr->opaque;
2594
Anthony Liguori7267c092011-08-20 22:09:37 -05002595 g_free(d->outbuf);
2596 g_free(chr->opaque);
Luiz Capitulino999bd672010-10-22 16:09:05 -02002597 chr->opaque = NULL;
2598 chr->chr_write = NULL;
2599}
2600
2601size_t qemu_chr_mem_osize(const CharDriverState *chr)
2602{
2603 const MemoryDriver *d = chr->opaque;
2604 return d->outbuf_size;
2605}
2606
Gerd Hoffmann33521632009-12-08 13:11:49 +01002607QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002608{
Gerd Hoffmann6ea314d2009-09-10 10:58:49 +02002609 char host[65], port[33], width[8], height[8];
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002610 int pos;
Gerd Hoffmann7d315442009-09-10 10:58:36 +02002611 const char *p;
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002612 QemuOpts *opts;
2613
Gerd Hoffmann3329f072010-08-20 13:52:01 +02002614 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1);
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002615 if (NULL == opts)
2616 return NULL;
2617
Gerd Hoffmann7591c5c2009-09-10 10:58:50 +02002618 if (strstart(filename, "mon:", &p)) {
2619 filename = p;
2620 qemu_opt_set(opts, "mux", "on");
2621 }
2622
Gerd Hoffmannf0457e82009-09-10 10:58:45 +02002623 if (strcmp(filename, "null") == 0 ||
2624 strcmp(filename, "pty") == 0 ||
2625 strcmp(filename, "msmouse") == 0 ||
Gerd Hoffmanndc1c21e2009-09-10 10:58:46 +02002626 strcmp(filename, "braille") == 0 ||
Gerd Hoffmannf0457e82009-09-10 10:58:45 +02002627 strcmp(filename, "stdio") == 0) {
Gerd Hoffmann4490dad2009-09-10 10:58:43 +02002628 qemu_opt_set(opts, "backend", filename);
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002629 return opts;
2630 }
Gerd Hoffmann6ea314d2009-09-10 10:58:49 +02002631 if (strstart(filename, "vc", &p)) {
2632 qemu_opt_set(opts, "backend", "vc");
2633 if (*p == ':') {
2634 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2635 /* pixels */
2636 qemu_opt_set(opts, "width", width);
2637 qemu_opt_set(opts, "height", height);
2638 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2639 /* chars */
2640 qemu_opt_set(opts, "cols", width);
2641 qemu_opt_set(opts, "rows", height);
2642 } else {
2643 goto fail;
2644 }
2645 }
2646 return opts;
2647 }
Gerd Hoffmannd6c983c2009-09-10 10:58:47 +02002648 if (strcmp(filename, "con:") == 0) {
2649 qemu_opt_set(opts, "backend", "console");
2650 return opts;
2651 }
Gerd Hoffmann48b76492009-09-10 10:58:48 +02002652 if (strstart(filename, "COM", NULL)) {
2653 qemu_opt_set(opts, "backend", "serial");
2654 qemu_opt_set(opts, "path", filename);
2655 return opts;
2656 }
Gerd Hoffmann7d315442009-09-10 10:58:36 +02002657 if (strstart(filename, "file:", &p)) {
2658 qemu_opt_set(opts, "backend", "file");
2659 qemu_opt_set(opts, "path", p);
2660 return opts;
2661 }
2662 if (strstart(filename, "pipe:", &p)) {
2663 qemu_opt_set(opts, "backend", "pipe");
2664 qemu_opt_set(opts, "path", p);
2665 return opts;
2666 }
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002667 if (strstart(filename, "tcp:", &p) ||
2668 strstart(filename, "telnet:", &p)) {
2669 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2670 host[0] = 0;
2671 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2672 goto fail;
2673 }
2674 qemu_opt_set(opts, "backend", "socket");
2675 qemu_opt_set(opts, "host", host);
2676 qemu_opt_set(opts, "port", port);
2677 if (p[pos] == ',') {
2678 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2679 goto fail;
2680 }
2681 if (strstart(filename, "telnet:", &p))
2682 qemu_opt_set(opts, "telnet", "on");
2683 return opts;
2684 }
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002685 if (strstart(filename, "udp:", &p)) {
2686 qemu_opt_set(opts, "backend", "udp");
2687 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2688 host[0] = 0;
Jan Kiszka39324ca2010-03-07 11:28:48 +01002689 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002690 goto fail;
2691 }
2692 }
2693 qemu_opt_set(opts, "host", host);
2694 qemu_opt_set(opts, "port", port);
2695 if (p[pos] == '@') {
2696 p += pos + 1;
2697 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2698 host[0] = 0;
2699 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002700 goto fail;
2701 }
2702 }
2703 qemu_opt_set(opts, "localaddr", host);
2704 qemu_opt_set(opts, "localport", port);
2705 }
2706 return opts;
2707 }
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002708 if (strstart(filename, "unix:", &p)) {
2709 qemu_opt_set(opts, "backend", "socket");
2710 if (qemu_opts_do_parse(opts, p, "path") != 0)
2711 goto fail;
2712 return opts;
2713 }
Gerd Hoffmann48b76492009-09-10 10:58:48 +02002714 if (strstart(filename, "/dev/parport", NULL) ||
2715 strstart(filename, "/dev/ppi", NULL)) {
2716 qemu_opt_set(opts, "backend", "parport");
2717 qemu_opt_set(opts, "path", filename);
2718 return opts;
2719 }
2720 if (strstart(filename, "/dev/", NULL)) {
2721 qemu_opt_set(opts, "backend", "tty");
2722 qemu_opt_set(opts, "path", filename);
2723 return opts;
2724 }
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002725
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002726fail:
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002727 qemu_opts_del(opts);
2728 return NULL;
2729}
2730
2731static const struct {
2732 const char *name;
Kevin Wolf6e1db572011-06-01 13:29:11 +02002733 int (*open)(QemuOpts *opts, CharDriverState **chr);
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002734} backend_table[] = {
2735 { .name = "null", .open = qemu_chr_open_null },
Gerd Hoffmannaeb2c472009-09-10 10:58:42 +02002736 { .name = "socket", .open = qemu_chr_open_socket },
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002737 { .name = "udp", .open = qemu_chr_open_udp },
Gerd Hoffmannf0457e82009-09-10 10:58:45 +02002738 { .name = "msmouse", .open = qemu_chr_open_msmouse },
Gerd Hoffmann6ea314d2009-09-10 10:58:49 +02002739 { .name = "vc", .open = text_console_init },
Gerd Hoffmann7d315442009-09-10 10:58:36 +02002740#ifdef _WIN32
2741 { .name = "file", .open = qemu_chr_open_win_file_out },
2742 { .name = "pipe", .open = qemu_chr_open_win_pipe },
Gerd Hoffmannd6c983c2009-09-10 10:58:47 +02002743 { .name = "console", .open = qemu_chr_open_win_con },
Gerd Hoffmann48b76492009-09-10 10:58:48 +02002744 { .name = "serial", .open = qemu_chr_open_win },
Fabien Chouteaudb418a02011-10-06 16:37:51 +02002745 { .name = "stdio", .open = qemu_chr_open_win_stdio },
Gerd Hoffmann7d315442009-09-10 10:58:36 +02002746#else
2747 { .name = "file", .open = qemu_chr_open_file_out },
2748 { .name = "pipe", .open = qemu_chr_open_pipe },
Gerd Hoffmann4490dad2009-09-10 10:58:43 +02002749 { .name = "pty", .open = qemu_chr_open_pty },
Gerd Hoffmann3c17aff2009-09-10 10:58:44 +02002750 { .name = "stdio", .open = qemu_chr_open_stdio },
Gerd Hoffmann7d315442009-09-10 10:58:36 +02002751#endif
Gerd Hoffmanndc1c21e2009-09-10 10:58:46 +02002752#ifdef CONFIG_BRLAPI
2753 { .name = "braille", .open = chr_baum_init },
2754#endif
Gerd Hoffmann48b76492009-09-10 10:58:48 +02002755#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
Aurelien Jarnoa167ba52009-11-29 18:00:41 +01002756 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2757 || defined(__FreeBSD_kernel__)
Gerd Hoffmann48b76492009-09-10 10:58:48 +02002758 { .name = "tty", .open = qemu_chr_open_tty },
2759#endif
Aurelien Jarnoa167ba52009-11-29 18:00:41 +01002760#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2761 || defined(__FreeBSD_kernel__)
Gerd Hoffmann48b76492009-09-10 10:58:48 +02002762 { .name = "parport", .open = qemu_chr_open_pp },
2763#endif
Alon Levycbcc6332011-01-19 10:49:50 +02002764#ifdef CONFIG_SPICE
2765 { .name = "spicevmc", .open = qemu_chr_open_spice },
2766#endif
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002767};
2768
Anthony Liguorif69554b2011-08-15 11:17:37 -05002769CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002770 void (*init)(struct CharDriverState *s))
2771{
2772 CharDriverState *chr;
2773 int i;
Kevin Wolf6e1db572011-06-01 13:29:11 +02002774 int ret;
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002775
2776 if (qemu_opts_id(opts) == NULL) {
2777 fprintf(stderr, "chardev: no id specified\n");
2778 return NULL;
2779 }
2780
Stefan Hajnoczi1bbd1852011-01-22 13:07:26 +00002781 if (qemu_opt_get(opts, "backend") == NULL) {
2782 fprintf(stderr, "chardev: \"%s\" missing backend\n",
2783 qemu_opts_id(opts));
2784 return NULL;
2785 }
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002786 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
2787 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
2788 break;
2789 }
2790 if (i == ARRAY_SIZE(backend_table)) {
2791 fprintf(stderr, "chardev: backend \"%s\" not found\n",
2792 qemu_opt_get(opts, "backend"));
2793 return NULL;
2794 }
2795
Kevin Wolf6e1db572011-06-01 13:29:11 +02002796 ret = backend_table[i].open(opts, &chr);
2797 if (ret < 0) {
2798 fprintf(stderr, "chardev: opening backend \"%s\" failed: %s\n",
2799 qemu_opt_get(opts, "backend"), strerror(-ret));
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002800 return NULL;
2801 }
2802
2803 if (!chr->filename)
Anthony Liguori7267c092011-08-20 22:09:37 -05002804 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002805 chr->init = init;
Blue Swirl72cf2d42009-09-12 07:36:22 +00002806 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
Gerd Hoffmann7591c5c2009-09-10 10:58:50 +02002807
2808 if (qemu_opt_get_bool(opts, "mux", 0)) {
2809 CharDriverState *base = chr;
2810 int len = strlen(qemu_opts_id(opts)) + 6;
Anthony Liguori7267c092011-08-20 22:09:37 -05002811 base->label = g_malloc(len);
Gerd Hoffmann7591c5c2009-09-10 10:58:50 +02002812 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
2813 chr = qemu_chr_open_mux(base);
2814 chr->filename = base->filename;
Kusanagi Kouichid5b27162011-04-26 19:19:26 +09002815 chr->avail_connections = MAX_MUX;
Blue Swirl72cf2d42009-09-12 07:36:22 +00002816 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
Kusanagi Kouichid5b27162011-04-26 19:19:26 +09002817 } else {
2818 chr->avail_connections = 1;
Gerd Hoffmann7591c5c2009-09-10 10:58:50 +02002819 }
Anthony Liguori7267c092011-08-20 22:09:37 -05002820 chr->label = g_strdup(qemu_opts_id(opts));
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002821 return chr;
2822}
2823
Anthony Liguori27143a42011-08-15 11:17:36 -05002824CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
aliguori6f97dba2008-10-31 18:49:55 +00002825{
2826 const char *p;
2827 CharDriverState *chr;
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002828 QemuOpts *opts;
2829
Gerd Hoffmannc845f402009-09-10 10:58:52 +02002830 if (strstart(filename, "chardev:", &p)) {
2831 return qemu_chr_find(p);
2832 }
2833
Gerd Hoffmann191bc012009-09-10 10:58:35 +02002834 opts = qemu_chr_parse_compat(label, filename);
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002835 if (!opts)
2836 return NULL;
aliguori6f97dba2008-10-31 18:49:55 +00002837
Anthony Liguorif69554b2011-08-15 11:17:37 -05002838 chr = qemu_chr_new_from_opts(opts, init);
Gerd Hoffmann7e1b35b2009-09-10 10:58:51 +02002839 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
2840 monitor_init(chr, MONITOR_USE_READLINE);
aliguori6f97dba2008-10-31 18:49:55 +00002841 }
Paolo Bonzini363f8cb2010-12-23 13:42:54 +01002842 qemu_opts_del(opts);
aliguori6f97dba2008-10-31 18:49:55 +00002843 return chr;
2844}
2845
Anthony Liguori15f31512011-08-15 11:17:35 -05002846void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
Paolo Bonzinic48855e2010-12-23 13:42:48 +01002847{
2848 if (chr->chr_set_echo) {
2849 chr->chr_set_echo(chr, echo);
2850 }
2851}
2852
Anthony Liguoric9d830e2011-08-15 11:17:32 -05002853void qemu_chr_fe_open(struct CharDriverState *chr)
Hans de Goede7c32c4f2011-03-24 11:12:02 +01002854{
2855 if (chr->chr_guest_open) {
2856 chr->chr_guest_open(chr);
2857 }
2858}
2859
Anthony Liguori28178222011-08-15 11:17:33 -05002860void qemu_chr_fe_close(struct CharDriverState *chr)
Hans de Goede7c32c4f2011-03-24 11:12:02 +01002861{
2862 if (chr->chr_guest_close) {
2863 chr->chr_guest_close(chr);
2864 }
2865}
2866
Anthony Liguori70f24fb2011-08-15 11:17:38 -05002867void qemu_chr_delete(CharDriverState *chr)
aliguori6f97dba2008-10-31 18:49:55 +00002868{
Blue Swirl72cf2d42009-09-12 07:36:22 +00002869 QTAILQ_REMOVE(&chardevs, chr, next);
aliguori6f97dba2008-10-31 18:49:55 +00002870 if (chr->chr_close)
2871 chr->chr_close(chr);
Anthony Liguori7267c092011-08-20 22:09:37 -05002872 g_free(chr->filename);
2873 g_free(chr->label);
2874 g_free(chr);
aliguori6f97dba2008-10-31 18:49:55 +00002875}
2876
Luiz Capitulinoc5a415a2011-09-14 16:05:49 -03002877ChardevInfoList *qmp_query_chardev(Error **errp)
aliguori6f97dba2008-10-31 18:49:55 +00002878{
Luiz Capitulinoc5a415a2011-09-14 16:05:49 -03002879 ChardevInfoList *chr_list = NULL;
aliguori6f97dba2008-10-31 18:49:55 +00002880 CharDriverState *chr;
2881
Blue Swirl72cf2d42009-09-12 07:36:22 +00002882 QTAILQ_FOREACH(chr, &chardevs, next) {
Luiz Capitulinoc5a415a2011-09-14 16:05:49 -03002883 ChardevInfoList *info = g_malloc0(sizeof(*info));
2884 info->value = g_malloc0(sizeof(*info->value));
2885 info->value->label = g_strdup(chr->label);
2886 info->value->filename = g_strdup(chr->filename);
2887
2888 info->next = chr_list;
2889 chr_list = info;
aliguori6f97dba2008-10-31 18:49:55 +00002890 }
Luiz Capitulino588b3832009-12-10 17:16:08 -02002891
Luiz Capitulinoc5a415a2011-09-14 16:05:49 -03002892 return chr_list;
aliguori6f97dba2008-10-31 18:49:55 +00002893}
Gerd Hoffmannc845f402009-09-10 10:58:52 +02002894
2895CharDriverState *qemu_chr_find(const char *name)
2896{
2897 CharDriverState *chr;
2898
Blue Swirl72cf2d42009-09-12 07:36:22 +00002899 QTAILQ_FOREACH(chr, &chardevs, next) {
Gerd Hoffmannc845f402009-09-10 10:58:52 +02002900 if (strcmp(chr->label, name) != 0)
2901 continue;
2902 return chr;
2903 }
2904 return NULL;
2905}