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