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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 "block.h" | |
32 | #include "hw/usb.h" | |
33 | #include "hw/baum.h" | |
34 | #include "hw/msmouse.h" | |
35 | ||
36 | #include <unistd.h> | |
37 | #include <fcntl.h> | |
38 | #include <signal.h> | |
39 | #include <time.h> | |
40 | #include <errno.h> | |
41 | #include <sys/time.h> | |
42 | #include <zlib.h> | |
43 | ||
44 | #ifndef _WIN32 | |
45 | #include <sys/times.h> | |
46 | #include <sys/wait.h> | |
47 | #include <termios.h> | |
48 | #include <sys/mman.h> | |
49 | #include <sys/ioctl.h> | |
50 | #include <sys/resource.h> | |
51 | #include <sys/socket.h> | |
52 | #include <netinet/in.h> | |
53 | #include <net/if.h> | |
54 | #ifdef __NetBSD__ | |
55 | #include <net/if_tap.h> | |
56 | #endif | |
57 | #ifdef __linux__ | |
58 | #include <linux/if_tun.h> | |
59 | #endif | |
60 | #include <arpa/inet.h> | |
61 | #include <dirent.h> | |
62 | #include <netdb.h> | |
63 | #include <sys/select.h> | |
64 | #ifdef CONFIG_BSD | |
65 | #include <sys/stat.h> | |
66 | #ifdef __FreeBSD__ | |
67 | #include <libutil.h> | |
68 | #include <dev/ppbus/ppi.h> | |
69 | #include <dev/ppbus/ppbconf.h> | |
70 | #elif defined(__DragonFly__) | |
71 | #include <libutil.h> | |
72 | #include <dev/misc/ppi/ppi.h> | |
73 | #include <bus/ppbus/ppbconf.h> | |
74 | #else | |
75 | #include <util.h> | |
76 | #endif | |
77 | #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__) | |
78 | #include <freebsd/stdlib.h> | |
79 | #else | |
80 | #ifdef __linux__ | |
81 | #include <pty.h> | |
82 | ||
83 | #include <linux/ppdev.h> | |
84 | #include <linux/parport.h> | |
85 | #endif | |
86 | #ifdef __sun__ | |
87 | #include <sys/stat.h> | |
88 | #include <sys/ethernet.h> | |
89 | #include <sys/sockio.h> | |
90 | #include <netinet/arp.h> | |
91 | #include <netinet/in.h> | |
92 | #include <netinet/in_systm.h> | |
93 | #include <netinet/ip.h> | |
94 | #include <netinet/ip_icmp.h> // must come after ip.h | |
95 | #include <netinet/udp.h> | |
96 | #include <netinet/tcp.h> | |
97 | #include <net/if.h> | |
98 | #include <syslog.h> | |
99 | #include <stropts.h> | |
100 | #endif | |
101 | #endif | |
102 | #endif | |
103 | ||
104 | #include "qemu_socket.h" | |
105 | ||
106 | /***********************************************************/ | |
107 | /* character device */ | |
108 | ||
109 | static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs = | |
110 | TAILQ_HEAD_INITIALIZER(chardevs); | |
111 | static int initial_reset_issued; | |
112 | ||
113 | static void qemu_chr_event(CharDriverState *s, int event) | |
114 | { | |
115 | if (!s->chr_event) | |
116 | return; | |
117 | s->chr_event(s->handler_opaque, event); | |
118 | } | |
119 | ||
120 | static void qemu_chr_reset_bh(void *opaque) | |
121 | { | |
122 | CharDriverState *s = opaque; | |
123 | qemu_chr_event(s, CHR_EVENT_RESET); | |
124 | qemu_bh_delete(s->bh); | |
125 | s->bh = NULL; | |
126 | } | |
127 | ||
128 | void qemu_chr_reset(CharDriverState *s) | |
129 | { | |
130 | if (s->bh == NULL && initial_reset_issued) { | |
131 | s->bh = qemu_bh_new(qemu_chr_reset_bh, s); | |
132 | qemu_bh_schedule(s->bh); | |
133 | } | |
134 | } | |
135 | ||
136 | void qemu_chr_initial_reset(void) | |
137 | { | |
138 | CharDriverState *chr; | |
139 | ||
140 | initial_reset_issued = 1; | |
141 | ||
142 | TAILQ_FOREACH(chr, &chardevs, next) { | |
143 | qemu_chr_reset(chr); | |
144 | } | |
145 | } | |
146 | ||
147 | int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len) | |
148 | { | |
149 | return s->chr_write(s, buf, len); | |
150 | } | |
151 | ||
152 | int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg) | |
153 | { | |
154 | if (!s->chr_ioctl) | |
155 | return -ENOTSUP; | |
156 | return s->chr_ioctl(s, cmd, arg); | |
157 | } | |
158 | ||
159 | int qemu_chr_can_read(CharDriverState *s) | |
160 | { | |
161 | if (!s->chr_can_read) | |
162 | return 0; | |
163 | return s->chr_can_read(s->handler_opaque); | |
164 | } | |
165 | ||
166 | void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len) | |
167 | { | |
168 | s->chr_read(s->handler_opaque, buf, len); | |
169 | } | |
170 | ||
171 | int qemu_chr_get_msgfd(CharDriverState *s) | |
172 | { | |
173 | return s->get_msgfd ? s->get_msgfd(s) : -1; | |
174 | } | |
175 | ||
176 | void qemu_chr_accept_input(CharDriverState *s) | |
177 | { | |
178 | if (s->chr_accept_input) | |
179 | s->chr_accept_input(s); | |
180 | } | |
181 | ||
182 | void qemu_chr_printf(CharDriverState *s, const char *fmt, ...) | |
183 | { | |
184 | char buf[4096]; | |
185 | va_list ap; | |
186 | va_start(ap, fmt); | |
187 | vsnprintf(buf, sizeof(buf), fmt, ap); | |
188 | qemu_chr_write(s, (uint8_t *)buf, strlen(buf)); | |
189 | va_end(ap); | |
190 | } | |
191 | ||
192 | void qemu_chr_send_event(CharDriverState *s, int event) | |
193 | { | |
194 | if (s->chr_send_event) | |
195 | s->chr_send_event(s, event); | |
196 | } | |
197 | ||
198 | void qemu_chr_add_handlers(CharDriverState *s, | |
199 | IOCanRWHandler *fd_can_read, | |
200 | IOReadHandler *fd_read, | |
201 | IOEventHandler *fd_event, | |
202 | void *opaque) | |
203 | { | |
204 | s->chr_can_read = fd_can_read; | |
205 | s->chr_read = fd_read; | |
206 | s->chr_event = fd_event; | |
207 | s->handler_opaque = opaque; | |
208 | if (s->chr_update_read_handler) | |
209 | s->chr_update_read_handler(s); | |
210 | } | |
211 | ||
212 | static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
213 | { | |
214 | return len; | |
215 | } | |
216 | ||
217 | static CharDriverState *qemu_chr_open_null(QemuOpts *opts) | |
218 | { | |
219 | CharDriverState *chr; | |
220 | ||
221 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
222 | chr->chr_write = null_chr_write; | |
223 | return chr; | |
224 | } | |
225 | ||
226 | /* MUX driver for serial I/O splitting */ | |
227 | #define MAX_MUX 4 | |
228 | #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ | |
229 | #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) | |
230 | typedef struct { | |
231 | IOCanRWHandler *chr_can_read[MAX_MUX]; | |
232 | IOReadHandler *chr_read[MAX_MUX]; | |
233 | IOEventHandler *chr_event[MAX_MUX]; | |
234 | void *ext_opaque[MAX_MUX]; | |
235 | CharDriverState *drv; | |
236 | int mux_cnt; | |
237 | int term_got_escape; | |
238 | int max_size; | |
239 | /* Intermediate input buffer allows to catch escape sequences even if the | |
240 | currently active device is not accepting any input - but only until it | |
241 | is full as well. */ | |
242 | unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE]; | |
243 | int prod[MAX_MUX]; | |
244 | int cons[MAX_MUX]; | |
245 | int timestamps; | |
246 | int linestart; | |
247 | int64_t timestamps_start; | |
248 | } MuxDriver; | |
249 | ||
250 | ||
251 | static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
252 | { | |
253 | MuxDriver *d = chr->opaque; | |
254 | int ret; | |
255 | if (!d->timestamps) { | |
256 | ret = d->drv->chr_write(d->drv, buf, len); | |
257 | } else { | |
258 | int i; | |
259 | ||
260 | ret = 0; | |
261 | for (i = 0; i < len; i++) { | |
262 | if (d->linestart) { | |
263 | char buf1[64]; | |
264 | int64_t ti; | |
265 | int secs; | |
266 | ||
267 | ti = qemu_get_clock(rt_clock); | |
268 | if (d->timestamps_start == -1) | |
269 | d->timestamps_start = ti; | |
270 | ti -= d->timestamps_start; | |
271 | secs = ti / 1000; | |
272 | snprintf(buf1, sizeof(buf1), | |
273 | "[%02d:%02d:%02d.%03d] ", | |
274 | secs / 3600, | |
275 | (secs / 60) % 60, | |
276 | secs % 60, | |
277 | (int)(ti % 1000)); | |
278 | d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1)); | |
279 | d->linestart = 0; | |
280 | } | |
281 | ret += d->drv->chr_write(d->drv, buf+i, 1); | |
282 | if (buf[i] == '\n') { | |
283 | d->linestart = 1; | |
284 | } | |
285 | } | |
286 | } | |
287 | return ret; | |
288 | } | |
289 | ||
290 | static const char * const mux_help[] = { | |
291 | "% h print this help\n\r", | |
292 | "% x exit emulator\n\r", | |
293 | "% s save disk data back to file (if -snapshot)\n\r", | |
294 | "% t toggle console timestamps\n\r" | |
295 | "% b send break (magic sysrq)\n\r", | |
296 | "% c switch between console and monitor\n\r", | |
297 | "% % sends %\n\r", | |
298 | NULL | |
299 | }; | |
300 | ||
301 | int term_escape_char = 0x01; /* ctrl-a is used for escape */ | |
302 | static void mux_print_help(CharDriverState *chr) | |
303 | { | |
304 | int i, j; | |
305 | char ebuf[15] = "Escape-Char"; | |
306 | char cbuf[50] = "\n\r"; | |
307 | ||
308 | if (term_escape_char > 0 && term_escape_char < 26) { | |
309 | snprintf(cbuf, sizeof(cbuf), "\n\r"); | |
310 | snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); | |
311 | } else { | |
312 | snprintf(cbuf, sizeof(cbuf), | |
313 | "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r", | |
314 | term_escape_char); | |
315 | } | |
316 | chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); | |
317 | for (i = 0; mux_help[i] != NULL; i++) { | |
318 | for (j=0; mux_help[i][j] != '\0'; j++) { | |
319 | if (mux_help[i][j] == '%') | |
320 | chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); | |
321 | else | |
322 | chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1); | |
323 | } | |
324 | } | |
325 | } | |
326 | ||
327 | static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) | |
328 | { | |
329 | if (d->chr_event[mux_nr]) | |
330 | d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); | |
331 | } | |
332 | ||
333 | static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) | |
334 | { | |
335 | if (d->term_got_escape) { | |
336 | d->term_got_escape = 0; | |
337 | if (ch == term_escape_char) | |
338 | goto send_char; | |
339 | switch(ch) { | |
340 | case '?': | |
341 | case 'h': | |
342 | mux_print_help(chr); | |
343 | break; | |
344 | case 'x': | |
345 | { | |
346 | const char *term = "QEMU: Terminated\n\r"; | |
347 | chr->chr_write(chr,(uint8_t *)term,strlen(term)); | |
348 | exit(0); | |
349 | break; | |
350 | } | |
351 | case 's': | |
352 | { | |
353 | DriveInfo *dinfo; | |
354 | TAILQ_FOREACH(dinfo, &drives, next) { | |
355 | bdrv_commit(dinfo->bdrv); | |
356 | } | |
357 | } | |
358 | break; | |
359 | case 'b': | |
360 | qemu_chr_event(chr, CHR_EVENT_BREAK); | |
361 | break; | |
362 | case 'c': | |
363 | /* Switch to the next registered device */ | |
364 | mux_chr_send_event(d, chr->focus, CHR_EVENT_MUX_OUT); | |
365 | chr->focus++; | |
366 | if (chr->focus >= d->mux_cnt) | |
367 | chr->focus = 0; | |
368 | mux_chr_send_event(d, chr->focus, CHR_EVENT_MUX_IN); | |
369 | break; | |
370 | case 't': | |
371 | d->timestamps = !d->timestamps; | |
372 | d->timestamps_start = -1; | |
373 | d->linestart = 0; | |
374 | break; | |
375 | } | |
376 | } else if (ch == term_escape_char) { | |
377 | d->term_got_escape = 1; | |
378 | } else { | |
379 | send_char: | |
380 | return 1; | |
381 | } | |
382 | return 0; | |
383 | } | |
384 | ||
385 | static void mux_chr_accept_input(CharDriverState *chr) | |
386 | { | |
387 | int m = chr->focus; | |
388 | MuxDriver *d = chr->opaque; | |
389 | ||
390 | while (d->prod[m] != d->cons[m] && | |
391 | d->chr_can_read[m] && | |
392 | d->chr_can_read[m](d->ext_opaque[m])) { | |
393 | d->chr_read[m](d->ext_opaque[m], | |
394 | &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1); | |
395 | } | |
396 | } | |
397 | ||
398 | static int mux_chr_can_read(void *opaque) | |
399 | { | |
400 | CharDriverState *chr = opaque; | |
401 | MuxDriver *d = chr->opaque; | |
402 | int m = chr->focus; | |
403 | ||
404 | if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE) | |
405 | return 1; | |
406 | if (d->chr_can_read[m]) | |
407 | return d->chr_can_read[m](d->ext_opaque[m]); | |
408 | return 0; | |
409 | } | |
410 | ||
411 | static void mux_chr_read(void *opaque, const uint8_t *buf, int size) | |
412 | { | |
413 | CharDriverState *chr = opaque; | |
414 | MuxDriver *d = chr->opaque; | |
415 | int m = chr->focus; | |
416 | int i; | |
417 | ||
418 | mux_chr_accept_input (opaque); | |
419 | ||
420 | for(i = 0; i < size; i++) | |
421 | if (mux_proc_byte(chr, d, buf[i])) { | |
422 | if (d->prod[m] == d->cons[m] && | |
423 | d->chr_can_read[m] && | |
424 | d->chr_can_read[m](d->ext_opaque[m])) | |
425 | d->chr_read[m](d->ext_opaque[m], &buf[i], 1); | |
426 | else | |
427 | d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; | |
428 | } | |
429 | } | |
430 | ||
431 | static void mux_chr_event(void *opaque, int event) | |
432 | { | |
433 | CharDriverState *chr = opaque; | |
434 | MuxDriver *d = chr->opaque; | |
435 | int i; | |
436 | ||
437 | /* Send the event to all registered listeners */ | |
438 | for (i = 0; i < d->mux_cnt; i++) | |
439 | mux_chr_send_event(d, i, event); | |
440 | } | |
441 | ||
442 | static void mux_chr_update_read_handler(CharDriverState *chr) | |
443 | { | |
444 | MuxDriver *d = chr->opaque; | |
445 | ||
446 | if (d->mux_cnt >= MAX_MUX) { | |
447 | fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n"); | |
448 | return; | |
449 | } | |
450 | d->ext_opaque[d->mux_cnt] = chr->handler_opaque; | |
451 | d->chr_can_read[d->mux_cnt] = chr->chr_can_read; | |
452 | d->chr_read[d->mux_cnt] = chr->chr_read; | |
453 | d->chr_event[d->mux_cnt] = chr->chr_event; | |
454 | /* Fix up the real driver with mux routines */ | |
455 | if (d->mux_cnt == 0) { | |
456 | qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, | |
457 | mux_chr_event, chr); | |
458 | } | |
459 | chr->focus = d->mux_cnt; | |
460 | d->mux_cnt++; | |
461 | } | |
462 | ||
463 | static CharDriverState *qemu_chr_open_mux(CharDriverState *drv) | |
464 | { | |
465 | CharDriverState *chr; | |
466 | MuxDriver *d; | |
467 | ||
468 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
469 | d = qemu_mallocz(sizeof(MuxDriver)); | |
470 | ||
471 | chr->opaque = d; | |
472 | d->drv = drv; | |
473 | chr->focus = -1; | |
474 | chr->chr_write = mux_chr_write; | |
475 | chr->chr_update_read_handler = mux_chr_update_read_handler; | |
476 | chr->chr_accept_input = mux_chr_accept_input; | |
477 | return chr; | |
478 | } | |
479 | ||
480 | ||
481 | #ifdef _WIN32 | |
482 | int send_all(int fd, const void *buf, int len1) | |
483 | { | |
484 | int ret, len; | |
485 | ||
486 | len = len1; | |
487 | while (len > 0) { | |
488 | ret = send(fd, buf, len, 0); | |
489 | if (ret < 0) { | |
490 | errno = WSAGetLastError(); | |
491 | if (errno != WSAEWOULDBLOCK) { | |
492 | return -1; | |
493 | } | |
494 | } else if (ret == 0) { | |
495 | break; | |
496 | } else { | |
497 | buf += ret; | |
498 | len -= ret; | |
499 | } | |
500 | } | |
501 | return len1 - len; | |
502 | } | |
503 | ||
504 | #else | |
505 | ||
506 | static int unix_write(int fd, const uint8_t *buf, int len1) | |
507 | { | |
508 | int ret, len; | |
509 | ||
510 | len = len1; | |
511 | while (len > 0) { | |
512 | ret = write(fd, buf, len); | |
513 | if (ret < 0) { | |
514 | if (errno != EINTR && errno != EAGAIN) | |
515 | return -1; | |
516 | } else if (ret == 0) { | |
517 | break; | |
518 | } else { | |
519 | buf += ret; | |
520 | len -= ret; | |
521 | } | |
522 | } | |
523 | return len1 - len; | |
524 | } | |
525 | ||
526 | int send_all(int fd, const void *buf, int len1) | |
527 | { | |
528 | return unix_write(fd, buf, len1); | |
529 | } | |
530 | #endif /* !_WIN32 */ | |
531 | ||
532 | #ifndef _WIN32 | |
533 | ||
534 | typedef struct { | |
535 | int fd_in, fd_out; | |
536 | int max_size; | |
537 | } FDCharDriver; | |
538 | ||
539 | #define STDIO_MAX_CLIENTS 1 | |
540 | static int stdio_nb_clients = 0; | |
541 | ||
542 | static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
543 | { | |
544 | FDCharDriver *s = chr->opaque; | |
545 | return send_all(s->fd_out, buf, len); | |
546 | } | |
547 | ||
548 | static int fd_chr_read_poll(void *opaque) | |
549 | { | |
550 | CharDriverState *chr = opaque; | |
551 | FDCharDriver *s = chr->opaque; | |
552 | ||
553 | s->max_size = qemu_chr_can_read(chr); | |
554 | return s->max_size; | |
555 | } | |
556 | ||
557 | static void fd_chr_read(void *opaque) | |
558 | { | |
559 | CharDriverState *chr = opaque; | |
560 | FDCharDriver *s = chr->opaque; | |
561 | int size, len; | |
562 | uint8_t buf[1024]; | |
563 | ||
564 | len = sizeof(buf); | |
565 | if (len > s->max_size) | |
566 | len = s->max_size; | |
567 | if (len == 0) | |
568 | return; | |
569 | size = read(s->fd_in, buf, len); | |
570 | if (size == 0) { | |
571 | /* FD has been closed. Remove it from the active list. */ | |
572 | qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); | |
573 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
574 | return; | |
575 | } | |
576 | if (size > 0) { | |
577 | qemu_chr_read(chr, buf, size); | |
578 | } | |
579 | } | |
580 | ||
581 | static void fd_chr_update_read_handler(CharDriverState *chr) | |
582 | { | |
583 | FDCharDriver *s = chr->opaque; | |
584 | ||
585 | if (s->fd_in >= 0) { | |
586 | if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { | |
587 | } else { | |
588 | qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, | |
589 | fd_chr_read, NULL, chr); | |
590 | } | |
591 | } | |
592 | } | |
593 | ||
594 | static void fd_chr_close(struct CharDriverState *chr) | |
595 | { | |
596 | FDCharDriver *s = chr->opaque; | |
597 | ||
598 | if (s->fd_in >= 0) { | |
599 | if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { | |
600 | } else { | |
601 | qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); | |
602 | } | |
603 | } | |
604 | ||
605 | qemu_free(s); | |
606 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
607 | } | |
608 | ||
609 | /* open a character device to a unix fd */ | |
610 | static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) | |
611 | { | |
612 | CharDriverState *chr; | |
613 | FDCharDriver *s; | |
614 | ||
615 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
616 | s = qemu_mallocz(sizeof(FDCharDriver)); | |
617 | s->fd_in = fd_in; | |
618 | s->fd_out = fd_out; | |
619 | chr->opaque = s; | |
620 | chr->chr_write = fd_chr_write; | |
621 | chr->chr_update_read_handler = fd_chr_update_read_handler; | |
622 | chr->chr_close = fd_chr_close; | |
623 | ||
624 | qemu_chr_reset(chr); | |
625 | ||
626 | return chr; | |
627 | } | |
628 | ||
629 | static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts) | |
630 | { | |
631 | int fd_out; | |
632 | ||
633 | TFR(fd_out = open(qemu_opt_get(opts, "path"), | |
634 | O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666)); | |
635 | if (fd_out < 0) | |
636 | return NULL; | |
637 | return qemu_chr_open_fd(-1, fd_out); | |
638 | } | |
639 | ||
640 | static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts) | |
641 | { | |
642 | int fd_in, fd_out; | |
643 | char filename_in[256], filename_out[256]; | |
644 | const char *filename = qemu_opt_get(opts, "path"); | |
645 | ||
646 | if (filename == NULL) { | |
647 | fprintf(stderr, "chardev: pipe: no filename given\n"); | |
648 | return NULL; | |
649 | } | |
650 | ||
651 | snprintf(filename_in, 256, "%s.in", filename); | |
652 | snprintf(filename_out, 256, "%s.out", filename); | |
653 | TFR(fd_in = open(filename_in, O_RDWR | O_BINARY)); | |
654 | TFR(fd_out = open(filename_out, O_RDWR | O_BINARY)); | |
655 | if (fd_in < 0 || fd_out < 0) { | |
656 | if (fd_in >= 0) | |
657 | close(fd_in); | |
658 | if (fd_out >= 0) | |
659 | close(fd_out); | |
660 | TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); | |
661 | if (fd_in < 0) | |
662 | return NULL; | |
663 | } | |
664 | return qemu_chr_open_fd(fd_in, fd_out); | |
665 | } | |
666 | ||
667 | ||
668 | /* for STDIO, we handle the case where several clients use it | |
669 | (nographic mode) */ | |
670 | ||
671 | #define TERM_FIFO_MAX_SIZE 1 | |
672 | ||
673 | static uint8_t term_fifo[TERM_FIFO_MAX_SIZE]; | |
674 | static int term_fifo_size; | |
675 | ||
676 | static int stdio_read_poll(void *opaque) | |
677 | { | |
678 | CharDriverState *chr = opaque; | |
679 | ||
680 | /* try to flush the queue if needed */ | |
681 | if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { | |
682 | qemu_chr_read(chr, term_fifo, 1); | |
683 | term_fifo_size = 0; | |
684 | } | |
685 | /* see if we can absorb more chars */ | |
686 | if (term_fifo_size == 0) | |
687 | return 1; | |
688 | else | |
689 | return 0; | |
690 | } | |
691 | ||
692 | static void stdio_read(void *opaque) | |
693 | { | |
694 | int size; | |
695 | uint8_t buf[1]; | |
696 | CharDriverState *chr = opaque; | |
697 | ||
698 | size = read(0, buf, 1); | |
699 | if (size == 0) { | |
700 | /* stdin has been closed. Remove it from the active list. */ | |
701 | qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); | |
702 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
703 | return; | |
704 | } | |
705 | if (size > 0) { | |
706 | if (qemu_chr_can_read(chr) > 0) { | |
707 | qemu_chr_read(chr, buf, 1); | |
708 | } else if (term_fifo_size == 0) { | |
709 | term_fifo[term_fifo_size++] = buf[0]; | |
710 | } | |
711 | } | |
712 | } | |
713 | ||
714 | /* init terminal so that we can grab keys */ | |
715 | static struct termios oldtty; | |
716 | static int old_fd0_flags; | |
717 | static int term_atexit_done; | |
718 | ||
719 | static void term_exit(void) | |
720 | { | |
721 | tcsetattr (0, TCSANOW, &oldtty); | |
722 | fcntl(0, F_SETFL, old_fd0_flags); | |
723 | } | |
724 | ||
725 | static void term_init(void) | |
726 | { | |
727 | struct termios tty; | |
728 | ||
729 | tcgetattr (0, &tty); | |
730 | oldtty = tty; | |
731 | old_fd0_flags = fcntl(0, F_GETFL); | |
732 | ||
733 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP | |
734 | |INLCR|IGNCR|ICRNL|IXON); | |
735 | tty.c_oflag |= OPOST; | |
736 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); | |
737 | /* if graphical mode, we allow Ctrl-C handling */ | |
738 | if (display_type == DT_NOGRAPHIC) | |
739 | tty.c_lflag &= ~ISIG; | |
740 | tty.c_cflag &= ~(CSIZE|PARENB); | |
741 | tty.c_cflag |= CS8; | |
742 | tty.c_cc[VMIN] = 1; | |
743 | tty.c_cc[VTIME] = 0; | |
744 | ||
745 | tcsetattr (0, TCSANOW, &tty); | |
746 | ||
747 | if (!term_atexit_done++) | |
748 | atexit(term_exit); | |
749 | ||
750 | fcntl(0, F_SETFL, O_NONBLOCK); | |
751 | } | |
752 | ||
753 | static void qemu_chr_close_stdio(struct CharDriverState *chr) | |
754 | { | |
755 | term_exit(); | |
756 | stdio_nb_clients--; | |
757 | qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); | |
758 | fd_chr_close(chr); | |
759 | } | |
760 | ||
761 | static CharDriverState *qemu_chr_open_stdio(void) | |
762 | { | |
763 | CharDriverState *chr; | |
764 | ||
765 | if (stdio_nb_clients >= STDIO_MAX_CLIENTS) | |
766 | return NULL; | |
767 | chr = qemu_chr_open_fd(0, 1); | |
768 | chr->chr_close = qemu_chr_close_stdio; | |
769 | qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); | |
770 | stdio_nb_clients++; | |
771 | term_init(); | |
772 | ||
773 | return chr; | |
774 | } | |
775 | ||
776 | #ifdef __sun__ | |
777 | /* Once Solaris has openpty(), this is going to be removed. */ | |
778 | static int openpty(int *amaster, int *aslave, char *name, | |
779 | struct termios *termp, struct winsize *winp) | |
780 | { | |
781 | const char *slave; | |
782 | int mfd = -1, sfd = -1; | |
783 | ||
784 | *amaster = *aslave = -1; | |
785 | ||
786 | mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY); | |
787 | if (mfd < 0) | |
788 | goto err; | |
789 | ||
790 | if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) | |
791 | goto err; | |
792 | ||
793 | if ((slave = ptsname(mfd)) == NULL) | |
794 | goto err; | |
795 | ||
796 | if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) | |
797 | goto err; | |
798 | ||
799 | if (ioctl(sfd, I_PUSH, "ptem") == -1 || | |
800 | (termp != NULL && tcgetattr(sfd, termp) < 0)) | |
801 | goto err; | |
802 | ||
803 | if (amaster) | |
804 | *amaster = mfd; | |
805 | if (aslave) | |
806 | *aslave = sfd; | |
807 | if (winp) | |
808 | ioctl(sfd, TIOCSWINSZ, winp); | |
809 | ||
810 | return 0; | |
811 | ||
812 | err: | |
813 | if (sfd != -1) | |
814 | close(sfd); | |
815 | close(mfd); | |
816 | return -1; | |
817 | } | |
818 | ||
819 | static void cfmakeraw (struct termios *termios_p) | |
820 | { | |
821 | termios_p->c_iflag &= | |
822 | ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); | |
823 | termios_p->c_oflag &= ~OPOST; | |
824 | termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); | |
825 | termios_p->c_cflag &= ~(CSIZE|PARENB); | |
826 | termios_p->c_cflag |= CS8; | |
827 | ||
828 | termios_p->c_cc[VMIN] = 0; | |
829 | termios_p->c_cc[VTIME] = 0; | |
830 | } | |
831 | #endif | |
832 | ||
833 | #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ | |
834 | || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) | |
835 | ||
836 | typedef struct { | |
837 | int fd; | |
838 | int connected; | |
839 | int polling; | |
840 | int read_bytes; | |
841 | QEMUTimer *timer; | |
842 | } PtyCharDriver; | |
843 | ||
844 | static void pty_chr_update_read_handler(CharDriverState *chr); | |
845 | static void pty_chr_state(CharDriverState *chr, int connected); | |
846 | ||
847 | static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
848 | { | |
849 | PtyCharDriver *s = chr->opaque; | |
850 | ||
851 | if (!s->connected) { | |
852 | /* guest sends data, check for (re-)connect */ | |
853 | pty_chr_update_read_handler(chr); | |
854 | return 0; | |
855 | } | |
856 | return send_all(s->fd, buf, len); | |
857 | } | |
858 | ||
859 | static int pty_chr_read_poll(void *opaque) | |
860 | { | |
861 | CharDriverState *chr = opaque; | |
862 | PtyCharDriver *s = chr->opaque; | |
863 | ||
864 | s->read_bytes = qemu_chr_can_read(chr); | |
865 | return s->read_bytes; | |
866 | } | |
867 | ||
868 | static void pty_chr_read(void *opaque) | |
869 | { | |
870 | CharDriverState *chr = opaque; | |
871 | PtyCharDriver *s = chr->opaque; | |
872 | int size, len; | |
873 | uint8_t buf[1024]; | |
874 | ||
875 | len = sizeof(buf); | |
876 | if (len > s->read_bytes) | |
877 | len = s->read_bytes; | |
878 | if (len == 0) | |
879 | return; | |
880 | size = read(s->fd, buf, len); | |
881 | if ((size == -1 && errno == EIO) || | |
882 | (size == 0)) { | |
883 | pty_chr_state(chr, 0); | |
884 | return; | |
885 | } | |
886 | if (size > 0) { | |
887 | pty_chr_state(chr, 1); | |
888 | qemu_chr_read(chr, buf, size); | |
889 | } | |
890 | } | |
891 | ||
892 | static void pty_chr_update_read_handler(CharDriverState *chr) | |
893 | { | |
894 | PtyCharDriver *s = chr->opaque; | |
895 | ||
896 | qemu_set_fd_handler2(s->fd, pty_chr_read_poll, | |
897 | pty_chr_read, NULL, chr); | |
898 | s->polling = 1; | |
899 | /* | |
900 | * Short timeout here: just need wait long enougth that qemu makes | |
901 | * it through the poll loop once. When reconnected we want a | |
902 | * short timeout so we notice it almost instantly. Otherwise | |
903 | * read() gives us -EIO instantly, making pty_chr_state() reset the | |
904 | * timeout to the normal (much longer) poll interval before the | |
905 | * timer triggers. | |
906 | */ | |
907 | qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10); | |
908 | } | |
909 | ||
910 | static void pty_chr_state(CharDriverState *chr, int connected) | |
911 | { | |
912 | PtyCharDriver *s = chr->opaque; | |
913 | ||
914 | if (!connected) { | |
915 | qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); | |
916 | s->connected = 0; | |
917 | s->polling = 0; | |
918 | /* (re-)connect poll interval for idle guests: once per second. | |
919 | * We check more frequently in case the guests sends data to | |
920 | * the virtual device linked to our pty. */ | |
921 | qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000); | |
922 | } else { | |
923 | if (!s->connected) | |
924 | qemu_chr_reset(chr); | |
925 | s->connected = 1; | |
926 | } | |
927 | } | |
928 | ||
929 | static void pty_chr_timer(void *opaque) | |
930 | { | |
931 | struct CharDriverState *chr = opaque; | |
932 | PtyCharDriver *s = chr->opaque; | |
933 | ||
934 | if (s->connected) | |
935 | return; | |
936 | if (s->polling) { | |
937 | /* If we arrive here without polling being cleared due | |
938 | * read returning -EIO, then we are (re-)connected */ | |
939 | pty_chr_state(chr, 1); | |
940 | return; | |
941 | } | |
942 | ||
943 | /* Next poll ... */ | |
944 | pty_chr_update_read_handler(chr); | |
945 | } | |
946 | ||
947 | static void pty_chr_close(struct CharDriverState *chr) | |
948 | { | |
949 | PtyCharDriver *s = chr->opaque; | |
950 | ||
951 | qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); | |
952 | close(s->fd); | |
953 | qemu_del_timer(s->timer); | |
954 | qemu_free_timer(s->timer); | |
955 | qemu_free(s); | |
956 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
957 | } | |
958 | ||
959 | static CharDriverState *qemu_chr_open_pty(void) | |
960 | { | |
961 | CharDriverState *chr; | |
962 | PtyCharDriver *s; | |
963 | struct termios tty; | |
964 | int slave_fd, len; | |
965 | #if defined(__OpenBSD__) || defined(__DragonFly__) | |
966 | char pty_name[PATH_MAX]; | |
967 | #define q_ptsname(x) pty_name | |
968 | #else | |
969 | char *pty_name = NULL; | |
970 | #define q_ptsname(x) ptsname(x) | |
971 | #endif | |
972 | ||
973 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
974 | s = qemu_mallocz(sizeof(PtyCharDriver)); | |
975 | ||
976 | if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { | |
977 | return NULL; | |
978 | } | |
979 | ||
980 | /* Set raw attributes on the pty. */ | |
981 | tcgetattr(slave_fd, &tty); | |
982 | cfmakeraw(&tty); | |
983 | tcsetattr(slave_fd, TCSAFLUSH, &tty); | |
984 | close(slave_fd); | |
985 | ||
986 | len = strlen(q_ptsname(s->fd)) + 5; | |
987 | chr->filename = qemu_malloc(len); | |
988 | snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd)); | |
989 | fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd)); | |
990 | ||
991 | chr->opaque = s; | |
992 | chr->chr_write = pty_chr_write; | |
993 | chr->chr_update_read_handler = pty_chr_update_read_handler; | |
994 | chr->chr_close = pty_chr_close; | |
995 | ||
996 | s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr); | |
997 | ||
998 | return chr; | |
999 | } | |
1000 | ||
1001 | static void tty_serial_init(int fd, int speed, | |
1002 | int parity, int data_bits, int stop_bits) | |
1003 | { | |
1004 | struct termios tty; | |
1005 | speed_t spd; | |
1006 | ||
1007 | #if 0 | |
1008 | printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n", | |
1009 | speed, parity, data_bits, stop_bits); | |
1010 | #endif | |
1011 | tcgetattr (fd, &tty); | |
1012 | ||
1013 | #define MARGIN 1.1 | |
1014 | if (speed <= 50 * MARGIN) | |
1015 | spd = B50; | |
1016 | else if (speed <= 75 * MARGIN) | |
1017 | spd = B75; | |
1018 | else if (speed <= 300 * MARGIN) | |
1019 | spd = B300; | |
1020 | else if (speed <= 600 * MARGIN) | |
1021 | spd = B600; | |
1022 | else if (speed <= 1200 * MARGIN) | |
1023 | spd = B1200; | |
1024 | else if (speed <= 2400 * MARGIN) | |
1025 | spd = B2400; | |
1026 | else if (speed <= 4800 * MARGIN) | |
1027 | spd = B4800; | |
1028 | else if (speed <= 9600 * MARGIN) | |
1029 | spd = B9600; | |
1030 | else if (speed <= 19200 * MARGIN) | |
1031 | spd = B19200; | |
1032 | else if (speed <= 38400 * MARGIN) | |
1033 | spd = B38400; | |
1034 | else if (speed <= 57600 * MARGIN) | |
1035 | spd = B57600; | |
1036 | else if (speed <= 115200 * MARGIN) | |
1037 | spd = B115200; | |
1038 | else | |
1039 | spd = B115200; | |
1040 | ||
1041 | cfsetispeed(&tty, spd); | |
1042 | cfsetospeed(&tty, spd); | |
1043 | ||
1044 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP | |
1045 | |INLCR|IGNCR|ICRNL|IXON); | |
1046 | tty.c_oflag |= OPOST; | |
1047 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); | |
1048 | tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); | |
1049 | switch(data_bits) { | |
1050 | default: | |
1051 | case 8: | |
1052 | tty.c_cflag |= CS8; | |
1053 | break; | |
1054 | case 7: | |
1055 | tty.c_cflag |= CS7; | |
1056 | break; | |
1057 | case 6: | |
1058 | tty.c_cflag |= CS6; | |
1059 | break; | |
1060 | case 5: | |
1061 | tty.c_cflag |= CS5; | |
1062 | break; | |
1063 | } | |
1064 | switch(parity) { | |
1065 | default: | |
1066 | case 'N': | |
1067 | break; | |
1068 | case 'E': | |
1069 | tty.c_cflag |= PARENB; | |
1070 | break; | |
1071 | case 'O': | |
1072 | tty.c_cflag |= PARENB | PARODD; | |
1073 | break; | |
1074 | } | |
1075 | if (stop_bits == 2) | |
1076 | tty.c_cflag |= CSTOPB; | |
1077 | ||
1078 | tcsetattr (fd, TCSANOW, &tty); | |
1079 | } | |
1080 | ||
1081 | static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) | |
1082 | { | |
1083 | FDCharDriver *s = chr->opaque; | |
1084 | ||
1085 | switch(cmd) { | |
1086 | case CHR_IOCTL_SERIAL_SET_PARAMS: | |
1087 | { | |
1088 | QEMUSerialSetParams *ssp = arg; | |
1089 | tty_serial_init(s->fd_in, ssp->speed, ssp->parity, | |
1090 | ssp->data_bits, ssp->stop_bits); | |
1091 | } | |
1092 | break; | |
1093 | case CHR_IOCTL_SERIAL_SET_BREAK: | |
1094 | { | |
1095 | int enable = *(int *)arg; | |
1096 | if (enable) | |
1097 | tcsendbreak(s->fd_in, 1); | |
1098 | } | |
1099 | break; | |
1100 | case CHR_IOCTL_SERIAL_GET_TIOCM: | |
1101 | { | |
1102 | int sarg = 0; | |
1103 | int *targ = (int *)arg; | |
1104 | ioctl(s->fd_in, TIOCMGET, &sarg); | |
1105 | *targ = 0; | |
1106 | if (sarg & TIOCM_CTS) | |
1107 | *targ |= CHR_TIOCM_CTS; | |
1108 | if (sarg & TIOCM_CAR) | |
1109 | *targ |= CHR_TIOCM_CAR; | |
1110 | if (sarg & TIOCM_DSR) | |
1111 | *targ |= CHR_TIOCM_DSR; | |
1112 | if (sarg & TIOCM_RI) | |
1113 | *targ |= CHR_TIOCM_RI; | |
1114 | if (sarg & TIOCM_DTR) | |
1115 | *targ |= CHR_TIOCM_DTR; | |
1116 | if (sarg & TIOCM_RTS) | |
1117 | *targ |= CHR_TIOCM_RTS; | |
1118 | } | |
1119 | break; | |
1120 | case CHR_IOCTL_SERIAL_SET_TIOCM: | |
1121 | { | |
1122 | int sarg = *(int *)arg; | |
1123 | int targ = 0; | |
1124 | ioctl(s->fd_in, TIOCMGET, &targ); | |
1125 | targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR | |
1126 | | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); | |
1127 | if (sarg & CHR_TIOCM_CTS) | |
1128 | targ |= TIOCM_CTS; | |
1129 | if (sarg & CHR_TIOCM_CAR) | |
1130 | targ |= TIOCM_CAR; | |
1131 | if (sarg & CHR_TIOCM_DSR) | |
1132 | targ |= TIOCM_DSR; | |
1133 | if (sarg & CHR_TIOCM_RI) | |
1134 | targ |= TIOCM_RI; | |
1135 | if (sarg & CHR_TIOCM_DTR) | |
1136 | targ |= TIOCM_DTR; | |
1137 | if (sarg & CHR_TIOCM_RTS) | |
1138 | targ |= TIOCM_RTS; | |
1139 | ioctl(s->fd_in, TIOCMSET, &targ); | |
1140 | } | |
1141 | break; | |
1142 | default: | |
1143 | return -ENOTSUP; | |
1144 | } | |
1145 | return 0; | |
1146 | } | |
1147 | ||
1148 | static CharDriverState *qemu_chr_open_tty(const char *filename) | |
1149 | { | |
1150 | CharDriverState *chr; | |
1151 | int fd; | |
1152 | ||
1153 | TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); | |
1154 | tty_serial_init(fd, 115200, 'N', 8, 1); | |
1155 | chr = qemu_chr_open_fd(fd, fd); | |
1156 | if (!chr) { | |
1157 | close(fd); | |
1158 | return NULL; | |
1159 | } | |
1160 | chr->chr_ioctl = tty_serial_ioctl; | |
1161 | qemu_chr_reset(chr); | |
1162 | return chr; | |
1163 | } | |
1164 | #else /* ! __linux__ && ! __sun__ */ | |
1165 | static CharDriverState *qemu_chr_open_pty(void) | |
1166 | { | |
1167 | return NULL; | |
1168 | } | |
1169 | #endif /* __linux__ || __sun__ */ | |
1170 | ||
1171 | #if defined(__linux__) | |
1172 | typedef struct { | |
1173 | int fd; | |
1174 | int mode; | |
1175 | } ParallelCharDriver; | |
1176 | ||
1177 | static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) | |
1178 | { | |
1179 | if (s->mode != mode) { | |
1180 | int m = mode; | |
1181 | if (ioctl(s->fd, PPSETMODE, &m) < 0) | |
1182 | return 0; | |
1183 | s->mode = mode; | |
1184 | } | |
1185 | return 1; | |
1186 | } | |
1187 | ||
1188 | static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) | |
1189 | { | |
1190 | ParallelCharDriver *drv = chr->opaque; | |
1191 | int fd = drv->fd; | |
1192 | uint8_t b; | |
1193 | ||
1194 | switch(cmd) { | |
1195 | case CHR_IOCTL_PP_READ_DATA: | |
1196 | if (ioctl(fd, PPRDATA, &b) < 0) | |
1197 | return -ENOTSUP; | |
1198 | *(uint8_t *)arg = b; | |
1199 | break; | |
1200 | case CHR_IOCTL_PP_WRITE_DATA: | |
1201 | b = *(uint8_t *)arg; | |
1202 | if (ioctl(fd, PPWDATA, &b) < 0) | |
1203 | return -ENOTSUP; | |
1204 | break; | |
1205 | case CHR_IOCTL_PP_READ_CONTROL: | |
1206 | if (ioctl(fd, PPRCONTROL, &b) < 0) | |
1207 | return -ENOTSUP; | |
1208 | /* Linux gives only the lowest bits, and no way to know data | |
1209 | direction! For better compatibility set the fixed upper | |
1210 | bits. */ | |
1211 | *(uint8_t *)arg = b | 0xc0; | |
1212 | break; | |
1213 | case CHR_IOCTL_PP_WRITE_CONTROL: | |
1214 | b = *(uint8_t *)arg; | |
1215 | if (ioctl(fd, PPWCONTROL, &b) < 0) | |
1216 | return -ENOTSUP; | |
1217 | break; | |
1218 | case CHR_IOCTL_PP_READ_STATUS: | |
1219 | if (ioctl(fd, PPRSTATUS, &b) < 0) | |
1220 | return -ENOTSUP; | |
1221 | *(uint8_t *)arg = b; | |
1222 | break; | |
1223 | case CHR_IOCTL_PP_DATA_DIR: | |
1224 | if (ioctl(fd, PPDATADIR, (int *)arg) < 0) | |
1225 | return -ENOTSUP; | |
1226 | break; | |
1227 | case CHR_IOCTL_PP_EPP_READ_ADDR: | |
1228 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) { | |
1229 | struct ParallelIOArg *parg = arg; | |
1230 | int n = read(fd, parg->buffer, parg->count); | |
1231 | if (n != parg->count) { | |
1232 | return -EIO; | |
1233 | } | |
1234 | } | |
1235 | break; | |
1236 | case CHR_IOCTL_PP_EPP_READ: | |
1237 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) { | |
1238 | struct ParallelIOArg *parg = arg; | |
1239 | int n = read(fd, parg->buffer, parg->count); | |
1240 | if (n != parg->count) { | |
1241 | return -EIO; | |
1242 | } | |
1243 | } | |
1244 | break; | |
1245 | case CHR_IOCTL_PP_EPP_WRITE_ADDR: | |
1246 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) { | |
1247 | struct ParallelIOArg *parg = arg; | |
1248 | int n = write(fd, parg->buffer, parg->count); | |
1249 | if (n != parg->count) { | |
1250 | return -EIO; | |
1251 | } | |
1252 | } | |
1253 | break; | |
1254 | case CHR_IOCTL_PP_EPP_WRITE: | |
1255 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) { | |
1256 | struct ParallelIOArg *parg = arg; | |
1257 | int n = write(fd, parg->buffer, parg->count); | |
1258 | if (n != parg->count) { | |
1259 | return -EIO; | |
1260 | } | |
1261 | } | |
1262 | break; | |
1263 | default: | |
1264 | return -ENOTSUP; | |
1265 | } | |
1266 | return 0; | |
1267 | } | |
1268 | ||
1269 | static void pp_close(CharDriverState *chr) | |
1270 | { | |
1271 | ParallelCharDriver *drv = chr->opaque; | |
1272 | int fd = drv->fd; | |
1273 | ||
1274 | pp_hw_mode(drv, IEEE1284_MODE_COMPAT); | |
1275 | ioctl(fd, PPRELEASE); | |
1276 | close(fd); | |
1277 | qemu_free(drv); | |
1278 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
1279 | } | |
1280 | ||
1281 | static CharDriverState *qemu_chr_open_pp(const char *filename) | |
1282 | { | |
1283 | CharDriverState *chr; | |
1284 | ParallelCharDriver *drv; | |
1285 | int fd; | |
1286 | ||
1287 | TFR(fd = open(filename, O_RDWR)); | |
1288 | if (fd < 0) | |
1289 | return NULL; | |
1290 | ||
1291 | if (ioctl(fd, PPCLAIM) < 0) { | |
1292 | close(fd); | |
1293 | return NULL; | |
1294 | } | |
1295 | ||
1296 | drv = qemu_mallocz(sizeof(ParallelCharDriver)); | |
1297 | drv->fd = fd; | |
1298 | drv->mode = IEEE1284_MODE_COMPAT; | |
1299 | ||
1300 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
1301 | chr->chr_write = null_chr_write; | |
1302 | chr->chr_ioctl = pp_ioctl; | |
1303 | chr->chr_close = pp_close; | |
1304 | chr->opaque = drv; | |
1305 | ||
1306 | qemu_chr_reset(chr); | |
1307 | ||
1308 | return chr; | |
1309 | } | |
1310 | #endif /* __linux__ */ | |
1311 | ||
1312 | #if defined(__FreeBSD__) || defined(__DragonFly__) | |
1313 | static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) | |
1314 | { | |
1315 | int fd = (int)chr->opaque; | |
1316 | uint8_t b; | |
1317 | ||
1318 | switch(cmd) { | |
1319 | case CHR_IOCTL_PP_READ_DATA: | |
1320 | if (ioctl(fd, PPIGDATA, &b) < 0) | |
1321 | return -ENOTSUP; | |
1322 | *(uint8_t *)arg = b; | |
1323 | break; | |
1324 | case CHR_IOCTL_PP_WRITE_DATA: | |
1325 | b = *(uint8_t *)arg; | |
1326 | if (ioctl(fd, PPISDATA, &b) < 0) | |
1327 | return -ENOTSUP; | |
1328 | break; | |
1329 | case CHR_IOCTL_PP_READ_CONTROL: | |
1330 | if (ioctl(fd, PPIGCTRL, &b) < 0) | |
1331 | return -ENOTSUP; | |
1332 | *(uint8_t *)arg = b; | |
1333 | break; | |
1334 | case CHR_IOCTL_PP_WRITE_CONTROL: | |
1335 | b = *(uint8_t *)arg; | |
1336 | if (ioctl(fd, PPISCTRL, &b) < 0) | |
1337 | return -ENOTSUP; | |
1338 | break; | |
1339 | case CHR_IOCTL_PP_READ_STATUS: | |
1340 | if (ioctl(fd, PPIGSTATUS, &b) < 0) | |
1341 | return -ENOTSUP; | |
1342 | *(uint8_t *)arg = b; | |
1343 | break; | |
1344 | default: | |
1345 | return -ENOTSUP; | |
1346 | } | |
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | static CharDriverState *qemu_chr_open_pp(const char *filename) | |
1351 | { | |
1352 | CharDriverState *chr; | |
1353 | int fd; | |
1354 | ||
1355 | fd = open(filename, O_RDWR); | |
1356 | if (fd < 0) | |
1357 | return NULL; | |
1358 | ||
1359 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
1360 | chr->opaque = (void *)fd; | |
1361 | chr->chr_write = null_chr_write; | |
1362 | chr->chr_ioctl = pp_ioctl; | |
1363 | return chr; | |
1364 | } | |
1365 | #endif | |
1366 | ||
1367 | #else /* _WIN32 */ | |
1368 | ||
1369 | typedef struct { | |
1370 | int max_size; | |
1371 | HANDLE hcom, hrecv, hsend; | |
1372 | OVERLAPPED orecv, osend; | |
1373 | BOOL fpipe; | |
1374 | DWORD len; | |
1375 | } WinCharState; | |
1376 | ||
1377 | #define NSENDBUF 2048 | |
1378 | #define NRECVBUF 2048 | |
1379 | #define MAXCONNECT 1 | |
1380 | #define NTIMEOUT 5000 | |
1381 | ||
1382 | static int win_chr_poll(void *opaque); | |
1383 | static int win_chr_pipe_poll(void *opaque); | |
1384 | ||
1385 | static void win_chr_close(CharDriverState *chr) | |
1386 | { | |
1387 | WinCharState *s = chr->opaque; | |
1388 | ||
1389 | if (s->hsend) { | |
1390 | CloseHandle(s->hsend); | |
1391 | s->hsend = NULL; | |
1392 | } | |
1393 | if (s->hrecv) { | |
1394 | CloseHandle(s->hrecv); | |
1395 | s->hrecv = NULL; | |
1396 | } | |
1397 | if (s->hcom) { | |
1398 | CloseHandle(s->hcom); | |
1399 | s->hcom = NULL; | |
1400 | } | |
1401 | if (s->fpipe) | |
1402 | qemu_del_polling_cb(win_chr_pipe_poll, chr); | |
1403 | else | |
1404 | qemu_del_polling_cb(win_chr_poll, chr); | |
1405 | ||
1406 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
1407 | } | |
1408 | ||
1409 | static int win_chr_init(CharDriverState *chr, const char *filename) | |
1410 | { | |
1411 | WinCharState *s = chr->opaque; | |
1412 | COMMCONFIG comcfg; | |
1413 | COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; | |
1414 | COMSTAT comstat; | |
1415 | DWORD size; | |
1416 | DWORD err; | |
1417 | ||
1418 | s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1419 | if (!s->hsend) { | |
1420 | fprintf(stderr, "Failed CreateEvent\n"); | |
1421 | goto fail; | |
1422 | } | |
1423 | s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1424 | if (!s->hrecv) { | |
1425 | fprintf(stderr, "Failed CreateEvent\n"); | |
1426 | goto fail; | |
1427 | } | |
1428 | ||
1429 | s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, | |
1430 | OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0); | |
1431 | if (s->hcom == INVALID_HANDLE_VALUE) { | |
1432 | fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError()); | |
1433 | s->hcom = NULL; | |
1434 | goto fail; | |
1435 | } | |
1436 | ||
1437 | if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) { | |
1438 | fprintf(stderr, "Failed SetupComm\n"); | |
1439 | goto fail; | |
1440 | } | |
1441 | ||
1442 | ZeroMemory(&comcfg, sizeof(COMMCONFIG)); | |
1443 | size = sizeof(COMMCONFIG); | |
1444 | GetDefaultCommConfig(filename, &comcfg, &size); | |
1445 | comcfg.dcb.DCBlength = sizeof(DCB); | |
1446 | CommConfigDialog(filename, NULL, &comcfg); | |
1447 | ||
1448 | if (!SetCommState(s->hcom, &comcfg.dcb)) { | |
1449 | fprintf(stderr, "Failed SetCommState\n"); | |
1450 | goto fail; | |
1451 | } | |
1452 | ||
1453 | if (!SetCommMask(s->hcom, EV_ERR)) { | |
1454 | fprintf(stderr, "Failed SetCommMask\n"); | |
1455 | goto fail; | |
1456 | } | |
1457 | ||
1458 | cto.ReadIntervalTimeout = MAXDWORD; | |
1459 | if (!SetCommTimeouts(s->hcom, &cto)) { | |
1460 | fprintf(stderr, "Failed SetCommTimeouts\n"); | |
1461 | goto fail; | |
1462 | } | |
1463 | ||
1464 | if (!ClearCommError(s->hcom, &err, &comstat)) { | |
1465 | fprintf(stderr, "Failed ClearCommError\n"); | |
1466 | goto fail; | |
1467 | } | |
1468 | qemu_add_polling_cb(win_chr_poll, chr); | |
1469 | return 0; | |
1470 | ||
1471 | fail: | |
1472 | win_chr_close(chr); | |
1473 | return -1; | |
1474 | } | |
1475 | ||
1476 | static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) | |
1477 | { | |
1478 | WinCharState *s = chr->opaque; | |
1479 | DWORD len, ret, size, err; | |
1480 | ||
1481 | len = len1; | |
1482 | ZeroMemory(&s->osend, sizeof(s->osend)); | |
1483 | s->osend.hEvent = s->hsend; | |
1484 | while (len > 0) { | |
1485 | if (s->hsend) | |
1486 | ret = WriteFile(s->hcom, buf, len, &size, &s->osend); | |
1487 | else | |
1488 | ret = WriteFile(s->hcom, buf, len, &size, NULL); | |
1489 | if (!ret) { | |
1490 | err = GetLastError(); | |
1491 | if (err == ERROR_IO_PENDING) { | |
1492 | ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); | |
1493 | if (ret) { | |
1494 | buf += size; | |
1495 | len -= size; | |
1496 | } else { | |
1497 | break; | |
1498 | } | |
1499 | } else { | |
1500 | break; | |
1501 | } | |
1502 | } else { | |
1503 | buf += size; | |
1504 | len -= size; | |
1505 | } | |
1506 | } | |
1507 | return len1 - len; | |
1508 | } | |
1509 | ||
1510 | static int win_chr_read_poll(CharDriverState *chr) | |
1511 | { | |
1512 | WinCharState *s = chr->opaque; | |
1513 | ||
1514 | s->max_size = qemu_chr_can_read(chr); | |
1515 | return s->max_size; | |
1516 | } | |
1517 | ||
1518 | static void win_chr_readfile(CharDriverState *chr) | |
1519 | { | |
1520 | WinCharState *s = chr->opaque; | |
1521 | int ret, err; | |
1522 | uint8_t buf[1024]; | |
1523 | DWORD size; | |
1524 | ||
1525 | ZeroMemory(&s->orecv, sizeof(s->orecv)); | |
1526 | s->orecv.hEvent = s->hrecv; | |
1527 | ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); | |
1528 | if (!ret) { | |
1529 | err = GetLastError(); | |
1530 | if (err == ERROR_IO_PENDING) { | |
1531 | ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); | |
1532 | } | |
1533 | } | |
1534 | ||
1535 | if (size > 0) { | |
1536 | qemu_chr_read(chr, buf, size); | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | static void win_chr_read(CharDriverState *chr) | |
1541 | { | |
1542 | WinCharState *s = chr->opaque; | |
1543 | ||
1544 | if (s->len > s->max_size) | |
1545 | s->len = s->max_size; | |
1546 | if (s->len == 0) | |
1547 | return; | |
1548 | ||
1549 | win_chr_readfile(chr); | |
1550 | } | |
1551 | ||
1552 | static int win_chr_poll(void *opaque) | |
1553 | { | |
1554 | CharDriverState *chr = opaque; | |
1555 | WinCharState *s = chr->opaque; | |
1556 | COMSTAT status; | |
1557 | DWORD comerr; | |
1558 | ||
1559 | ClearCommError(s->hcom, &comerr, &status); | |
1560 | if (status.cbInQue > 0) { | |
1561 | s->len = status.cbInQue; | |
1562 | win_chr_read_poll(chr); | |
1563 | win_chr_read(chr); | |
1564 | return 1; | |
1565 | } | |
1566 | return 0; | |
1567 | } | |
1568 | ||
1569 | static CharDriverState *qemu_chr_open_win(const char *filename) | |
1570 | { | |
1571 | CharDriverState *chr; | |
1572 | WinCharState *s; | |
1573 | ||
1574 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
1575 | s = qemu_mallocz(sizeof(WinCharState)); | |
1576 | chr->opaque = s; | |
1577 | chr->chr_write = win_chr_write; | |
1578 | chr->chr_close = win_chr_close; | |
1579 | ||
1580 | if (win_chr_init(chr, filename) < 0) { | |
1581 | free(s); | |
1582 | free(chr); | |
1583 | return NULL; | |
1584 | } | |
1585 | qemu_chr_reset(chr); | |
1586 | return chr; | |
1587 | } | |
1588 | ||
1589 | static int win_chr_pipe_poll(void *opaque) | |
1590 | { | |
1591 | CharDriverState *chr = opaque; | |
1592 | WinCharState *s = chr->opaque; | |
1593 | DWORD size; | |
1594 | ||
1595 | PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); | |
1596 | if (size > 0) { | |
1597 | s->len = size; | |
1598 | win_chr_read_poll(chr); | |
1599 | win_chr_read(chr); | |
1600 | return 1; | |
1601 | } | |
1602 | return 0; | |
1603 | } | |
1604 | ||
1605 | static int win_chr_pipe_init(CharDriverState *chr, const char *filename) | |
1606 | { | |
1607 | WinCharState *s = chr->opaque; | |
1608 | OVERLAPPED ov; | |
1609 | int ret; | |
1610 | DWORD size; | |
1611 | char openname[256]; | |
1612 | ||
1613 | s->fpipe = TRUE; | |
1614 | ||
1615 | s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1616 | if (!s->hsend) { | |
1617 | fprintf(stderr, "Failed CreateEvent\n"); | |
1618 | goto fail; | |
1619 | } | |
1620 | s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1621 | if (!s->hrecv) { | |
1622 | fprintf(stderr, "Failed CreateEvent\n"); | |
1623 | goto fail; | |
1624 | } | |
1625 | ||
1626 | snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); | |
1627 | s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, | |
1628 | PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | | |
1629 | PIPE_WAIT, | |
1630 | MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL); | |
1631 | if (s->hcom == INVALID_HANDLE_VALUE) { | |
1632 | fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError()); | |
1633 | s->hcom = NULL; | |
1634 | goto fail; | |
1635 | } | |
1636 | ||
1637 | ZeroMemory(&ov, sizeof(ov)); | |
1638 | ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1639 | ret = ConnectNamedPipe(s->hcom, &ov); | |
1640 | if (ret) { | |
1641 | fprintf(stderr, "Failed ConnectNamedPipe\n"); | |
1642 | goto fail; | |
1643 | } | |
1644 | ||
1645 | ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); | |
1646 | if (!ret) { | |
1647 | fprintf(stderr, "Failed GetOverlappedResult\n"); | |
1648 | if (ov.hEvent) { | |
1649 | CloseHandle(ov.hEvent); | |
1650 | ov.hEvent = NULL; | |
1651 | } | |
1652 | goto fail; | |
1653 | } | |
1654 | ||
1655 | if (ov.hEvent) { | |
1656 | CloseHandle(ov.hEvent); | |
1657 | ov.hEvent = NULL; | |
1658 | } | |
1659 | qemu_add_polling_cb(win_chr_pipe_poll, chr); | |
1660 | return 0; | |
1661 | ||
1662 | fail: | |
1663 | win_chr_close(chr); | |
1664 | return -1; | |
1665 | } | |
1666 | ||
1667 | ||
1668 | static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts) | |
1669 | { | |
1670 | const char *filename = qemu_opt_get(opts, "path"); | |
1671 | CharDriverState *chr; | |
1672 | WinCharState *s; | |
1673 | ||
1674 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
1675 | s = qemu_mallocz(sizeof(WinCharState)); | |
1676 | chr->opaque = s; | |
1677 | chr->chr_write = win_chr_write; | |
1678 | chr->chr_close = win_chr_close; | |
1679 | ||
1680 | if (win_chr_pipe_init(chr, filename) < 0) { | |
1681 | free(s); | |
1682 | free(chr); | |
1683 | return NULL; | |
1684 | } | |
1685 | qemu_chr_reset(chr); | |
1686 | return chr; | |
1687 | } | |
1688 | ||
1689 | static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out) | |
1690 | { | |
1691 | CharDriverState *chr; | |
1692 | WinCharState *s; | |
1693 | ||
1694 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
1695 | s = qemu_mallocz(sizeof(WinCharState)); | |
1696 | s->hcom = fd_out; | |
1697 | chr->opaque = s; | |
1698 | chr->chr_write = win_chr_write; | |
1699 | qemu_chr_reset(chr); | |
1700 | return chr; | |
1701 | } | |
1702 | ||
1703 | static CharDriverState *qemu_chr_open_win_con(const char *filename) | |
1704 | { | |
1705 | return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE)); | |
1706 | } | |
1707 | ||
1708 | static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts) | |
1709 | { | |
1710 | const char *file_out = qemu_opt_get(opts, "path"); | |
1711 | HANDLE fd_out; | |
1712 | ||
1713 | fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL, | |
1714 | OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); | |
1715 | if (fd_out == INVALID_HANDLE_VALUE) | |
1716 | return NULL; | |
1717 | ||
1718 | return qemu_chr_open_win_file(fd_out); | |
1719 | } | |
1720 | #endif /* !_WIN32 */ | |
1721 | ||
1722 | /***********************************************************/ | |
1723 | /* UDP Net console */ | |
1724 | ||
1725 | typedef struct { | |
1726 | int fd; | |
1727 | struct sockaddr_in daddr; | |
1728 | uint8_t buf[1024]; | |
1729 | int bufcnt; | |
1730 | int bufptr; | |
1731 | int max_size; | |
1732 | } NetCharDriver; | |
1733 | ||
1734 | static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
1735 | { | |
1736 | NetCharDriver *s = chr->opaque; | |
1737 | ||
1738 | return sendto(s->fd, (const void *)buf, len, 0, | |
1739 | (struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in)); | |
1740 | } | |
1741 | ||
1742 | static int udp_chr_read_poll(void *opaque) | |
1743 | { | |
1744 | CharDriverState *chr = opaque; | |
1745 | NetCharDriver *s = chr->opaque; | |
1746 | ||
1747 | s->max_size = qemu_chr_can_read(chr); | |
1748 | ||
1749 | /* If there were any stray characters in the queue process them | |
1750 | * first | |
1751 | */ | |
1752 | while (s->max_size > 0 && s->bufptr < s->bufcnt) { | |
1753 | qemu_chr_read(chr, &s->buf[s->bufptr], 1); | |
1754 | s->bufptr++; | |
1755 | s->max_size = qemu_chr_can_read(chr); | |
1756 | } | |
1757 | return s->max_size; | |
1758 | } | |
1759 | ||
1760 | static void udp_chr_read(void *opaque) | |
1761 | { | |
1762 | CharDriverState *chr = opaque; | |
1763 | NetCharDriver *s = chr->opaque; | |
1764 | ||
1765 | if (s->max_size == 0) | |
1766 | return; | |
1767 | s->bufcnt = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); | |
1768 | s->bufptr = s->bufcnt; | |
1769 | if (s->bufcnt <= 0) | |
1770 | return; | |
1771 | ||
1772 | s->bufptr = 0; | |
1773 | while (s->max_size > 0 && s->bufptr < s->bufcnt) { | |
1774 | qemu_chr_read(chr, &s->buf[s->bufptr], 1); | |
1775 | s->bufptr++; | |
1776 | s->max_size = qemu_chr_can_read(chr); | |
1777 | } | |
1778 | } | |
1779 | ||
1780 | static void udp_chr_update_read_handler(CharDriverState *chr) | |
1781 | { | |
1782 | NetCharDriver *s = chr->opaque; | |
1783 | ||
1784 | if (s->fd >= 0) { | |
1785 | qemu_set_fd_handler2(s->fd, udp_chr_read_poll, | |
1786 | udp_chr_read, NULL, chr); | |
1787 | } | |
1788 | } | |
1789 | ||
1790 | static void udp_chr_close(CharDriverState *chr) | |
1791 | { | |
1792 | NetCharDriver *s = chr->opaque; | |
1793 | if (s->fd >= 0) { | |
1794 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
1795 | closesocket(s->fd); | |
1796 | } | |
1797 | qemu_free(s); | |
1798 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
1799 | } | |
1800 | ||
1801 | static CharDriverState *qemu_chr_open_udp(const char *def) | |
1802 | { | |
1803 | CharDriverState *chr = NULL; | |
1804 | NetCharDriver *s = NULL; | |
1805 | int fd = -1; | |
1806 | struct sockaddr_in saddr; | |
1807 | ||
1808 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
1809 | s = qemu_mallocz(sizeof(NetCharDriver)); | |
1810 | ||
1811 | fd = socket(PF_INET, SOCK_DGRAM, 0); | |
1812 | if (fd < 0) { | |
1813 | perror("socket(PF_INET, SOCK_DGRAM)"); | |
1814 | goto return_err; | |
1815 | } | |
1816 | ||
1817 | if (parse_host_src_port(&s->daddr, &saddr, def) < 0) { | |
1818 | printf("Could not parse: %s\n", def); | |
1819 | goto return_err; | |
1820 | } | |
1821 | ||
1822 | if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) | |
1823 | { | |
1824 | perror("bind"); | |
1825 | goto return_err; | |
1826 | } | |
1827 | ||
1828 | s->fd = fd; | |
1829 | s->bufcnt = 0; | |
1830 | s->bufptr = 0; | |
1831 | chr->opaque = s; | |
1832 | chr->chr_write = udp_chr_write; | |
1833 | chr->chr_update_read_handler = udp_chr_update_read_handler; | |
1834 | chr->chr_close = udp_chr_close; | |
1835 | return chr; | |
1836 | ||
1837 | return_err: | |
1838 | if (chr) | |
1839 | free(chr); | |
1840 | if (s) | |
1841 | free(s); | |
1842 | if (fd >= 0) | |
1843 | closesocket(fd); | |
1844 | return NULL; | |
1845 | } | |
1846 | ||
1847 | /***********************************************************/ | |
1848 | /* TCP Net console */ | |
1849 | ||
1850 | typedef struct { | |
1851 | int fd, listen_fd; | |
1852 | int connected; | |
1853 | int max_size; | |
1854 | int do_telnetopt; | |
1855 | int do_nodelay; | |
1856 | int is_unix; | |
1857 | int msgfd; | |
1858 | } TCPCharDriver; | |
1859 | ||
1860 | static void tcp_chr_accept(void *opaque); | |
1861 | ||
1862 | static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
1863 | { | |
1864 | TCPCharDriver *s = chr->opaque; | |
1865 | if (s->connected) { | |
1866 | return send_all(s->fd, buf, len); | |
1867 | } else { | |
1868 | /* XXX: indicate an error ? */ | |
1869 | return len; | |
1870 | } | |
1871 | } | |
1872 | ||
1873 | static int tcp_chr_read_poll(void *opaque) | |
1874 | { | |
1875 | CharDriverState *chr = opaque; | |
1876 | TCPCharDriver *s = chr->opaque; | |
1877 | if (!s->connected) | |
1878 | return 0; | |
1879 | s->max_size = qemu_chr_can_read(chr); | |
1880 | return s->max_size; | |
1881 | } | |
1882 | ||
1883 | #define IAC 255 | |
1884 | #define IAC_BREAK 243 | |
1885 | static void tcp_chr_process_IAC_bytes(CharDriverState *chr, | |
1886 | TCPCharDriver *s, | |
1887 | uint8_t *buf, int *size) | |
1888 | { | |
1889 | /* Handle any telnet client's basic IAC options to satisfy char by | |
1890 | * char mode with no echo. All IAC options will be removed from | |
1891 | * the buf and the do_telnetopt variable will be used to track the | |
1892 | * state of the width of the IAC information. | |
1893 | * | |
1894 | * IAC commands come in sets of 3 bytes with the exception of the | |
1895 | * "IAC BREAK" command and the double IAC. | |
1896 | */ | |
1897 | ||
1898 | int i; | |
1899 | int j = 0; | |
1900 | ||
1901 | for (i = 0; i < *size; i++) { | |
1902 | if (s->do_telnetopt > 1) { | |
1903 | if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { | |
1904 | /* Double IAC means send an IAC */ | |
1905 | if (j != i) | |
1906 | buf[j] = buf[i]; | |
1907 | j++; | |
1908 | s->do_telnetopt = 1; | |
1909 | } else { | |
1910 | if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { | |
1911 | /* Handle IAC break commands by sending a serial break */ | |
1912 | qemu_chr_event(chr, CHR_EVENT_BREAK); | |
1913 | s->do_telnetopt++; | |
1914 | } | |
1915 | s->do_telnetopt++; | |
1916 | } | |
1917 | if (s->do_telnetopt >= 4) { | |
1918 | s->do_telnetopt = 1; | |
1919 | } | |
1920 | } else { | |
1921 | if ((unsigned char)buf[i] == IAC) { | |
1922 | s->do_telnetopt = 2; | |
1923 | } else { | |
1924 | if (j != i) | |
1925 | buf[j] = buf[i]; | |
1926 | j++; | |
1927 | } | |
1928 | } | |
1929 | } | |
1930 | *size = j; | |
1931 | } | |
1932 | ||
1933 | static int tcp_get_msgfd(CharDriverState *chr) | |
1934 | { | |
1935 | TCPCharDriver *s = chr->opaque; | |
1936 | ||
1937 | return s->msgfd; | |
1938 | } | |
1939 | ||
1940 | #ifndef _WIN32 | |
1941 | static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) | |
1942 | { | |
1943 | TCPCharDriver *s = chr->opaque; | |
1944 | struct cmsghdr *cmsg; | |
1945 | ||
1946 | for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) { | |
1947 | int fd; | |
1948 | ||
1949 | if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) || | |
1950 | cmsg->cmsg_level != SOL_SOCKET || | |
1951 | cmsg->cmsg_type != SCM_RIGHTS) | |
1952 | continue; | |
1953 | ||
1954 | fd = *((int *)CMSG_DATA(cmsg)); | |
1955 | if (fd < 0) | |
1956 | continue; | |
1957 | ||
1958 | if (s->msgfd != -1) | |
1959 | close(s->msgfd); | |
1960 | s->msgfd = fd; | |
1961 | } | |
1962 | } | |
1963 | ||
1964 | static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) | |
1965 | { | |
1966 | TCPCharDriver *s = chr->opaque; | |
1967 | struct msghdr msg = { NULL, }; | |
1968 | struct iovec iov[1]; | |
1969 | union { | |
1970 | struct cmsghdr cmsg; | |
1971 | char control[CMSG_SPACE(sizeof(int))]; | |
1972 | } msg_control; | |
1973 | ssize_t ret; | |
1974 | ||
1975 | iov[0].iov_base = buf; | |
1976 | iov[0].iov_len = len; | |
1977 | ||
1978 | msg.msg_iov = iov; | |
1979 | msg.msg_iovlen = 1; | |
1980 | msg.msg_control = &msg_control; | |
1981 | msg.msg_controllen = sizeof(msg_control); | |
1982 | ||
1983 | ret = recvmsg(s->fd, &msg, 0); | |
1984 | if (ret > 0 && s->is_unix) | |
1985 | unix_process_msgfd(chr, &msg); | |
1986 | ||
1987 | return ret; | |
1988 | } | |
1989 | #else | |
1990 | static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) | |
1991 | { | |
1992 | TCPCharDriver *s = chr->opaque; | |
1993 | return recv(s->fd, buf, len, 0); | |
1994 | } | |
1995 | #endif | |
1996 | ||
1997 | static void tcp_chr_read(void *opaque) | |
1998 | { | |
1999 | CharDriverState *chr = opaque; | |
2000 | TCPCharDriver *s = chr->opaque; | |
2001 | uint8_t buf[1024]; | |
2002 | int len, size; | |
2003 | ||
2004 | if (!s->connected || s->max_size <= 0) | |
2005 | return; | |
2006 | len = sizeof(buf); | |
2007 | if (len > s->max_size) | |
2008 | len = s->max_size; | |
2009 | size = tcp_chr_recv(chr, (void *)buf, len); | |
2010 | if (size == 0) { | |
2011 | /* connection closed */ | |
2012 | s->connected = 0; | |
2013 | if (s->listen_fd >= 0) { | |
2014 | qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr); | |
2015 | } | |
2016 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
2017 | closesocket(s->fd); | |
2018 | s->fd = -1; | |
2019 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
2020 | } else if (size > 0) { | |
2021 | if (s->do_telnetopt) | |
2022 | tcp_chr_process_IAC_bytes(chr, s, buf, &size); | |
2023 | if (size > 0) | |
2024 | qemu_chr_read(chr, buf, size); | |
2025 | if (s->msgfd != -1) { | |
2026 | close(s->msgfd); | |
2027 | s->msgfd = -1; | |
2028 | } | |
2029 | } | |
2030 | } | |
2031 | ||
2032 | static void tcp_chr_connect(void *opaque) | |
2033 | { | |
2034 | CharDriverState *chr = opaque; | |
2035 | TCPCharDriver *s = chr->opaque; | |
2036 | ||
2037 | s->connected = 1; | |
2038 | qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, | |
2039 | tcp_chr_read, NULL, chr); | |
2040 | qemu_chr_reset(chr); | |
2041 | } | |
2042 | ||
2043 | #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; | |
2044 | static void tcp_chr_telnet_init(int fd) | |
2045 | { | |
2046 | char buf[3]; | |
2047 | /* Send the telnet negotion to put telnet in binary, no echo, single char mode */ | |
2048 | IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ | |
2049 | send(fd, (char *)buf, 3, 0); | |
2050 | IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ | |
2051 | send(fd, (char *)buf, 3, 0); | |
2052 | IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ | |
2053 | send(fd, (char *)buf, 3, 0); | |
2054 | IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ | |
2055 | send(fd, (char *)buf, 3, 0); | |
2056 | } | |
2057 | ||
2058 | static void socket_set_nodelay(int fd) | |
2059 | { | |
2060 | int val = 1; | |
2061 | setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); | |
2062 | } | |
2063 | ||
2064 | static void tcp_chr_accept(void *opaque) | |
2065 | { | |
2066 | CharDriverState *chr = opaque; | |
2067 | TCPCharDriver *s = chr->opaque; | |
2068 | struct sockaddr_in saddr; | |
2069 | #ifndef _WIN32 | |
2070 | struct sockaddr_un uaddr; | |
2071 | #endif | |
2072 | struct sockaddr *addr; | |
2073 | socklen_t len; | |
2074 | int fd; | |
2075 | ||
2076 | for(;;) { | |
2077 | #ifndef _WIN32 | |
2078 | if (s->is_unix) { | |
2079 | len = sizeof(uaddr); | |
2080 | addr = (struct sockaddr *)&uaddr; | |
2081 | } else | |
2082 | #endif | |
2083 | { | |
2084 | len = sizeof(saddr); | |
2085 | addr = (struct sockaddr *)&saddr; | |
2086 | } | |
2087 | fd = accept(s->listen_fd, addr, &len); | |
2088 | if (fd < 0 && errno != EINTR) { | |
2089 | return; | |
2090 | } else if (fd >= 0) { | |
2091 | if (s->do_telnetopt) | |
2092 | tcp_chr_telnet_init(fd); | |
2093 | break; | |
2094 | } | |
2095 | } | |
2096 | socket_set_nonblock(fd); | |
2097 | if (s->do_nodelay) | |
2098 | socket_set_nodelay(fd); | |
2099 | s->fd = fd; | |
2100 | qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); | |
2101 | tcp_chr_connect(chr); | |
2102 | } | |
2103 | ||
2104 | static void tcp_chr_close(CharDriverState *chr) | |
2105 | { | |
2106 | TCPCharDriver *s = chr->opaque; | |
2107 | if (s->fd >= 0) { | |
2108 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
2109 | closesocket(s->fd); | |
2110 | } | |
2111 | if (s->listen_fd >= 0) { | |
2112 | qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); | |
2113 | closesocket(s->listen_fd); | |
2114 | } | |
2115 | qemu_free(s); | |
2116 | qemu_chr_event(chr, CHR_EVENT_CLOSED); | |
2117 | } | |
2118 | ||
2119 | static CharDriverState *qemu_chr_open_tcp(const char *host_str, | |
2120 | int is_telnet, | |
2121 | int is_unix) | |
2122 | { | |
2123 | CharDriverState *chr = NULL; | |
2124 | TCPCharDriver *s = NULL; | |
2125 | int fd = -1, offset = 0; | |
2126 | int is_listen = 0; | |
2127 | int is_waitconnect = 1; | |
2128 | int do_nodelay = 0; | |
2129 | const char *ptr; | |
2130 | ||
2131 | ptr = host_str; | |
2132 | while((ptr = strchr(ptr,','))) { | |
2133 | ptr++; | |
2134 | if (!strncmp(ptr,"server",6)) { | |
2135 | is_listen = 1; | |
2136 | } else if (!strncmp(ptr,"nowait",6)) { | |
2137 | is_waitconnect = 0; | |
2138 | } else if (!strncmp(ptr,"nodelay",6)) { | |
2139 | do_nodelay = 1; | |
2140 | } else if (!strncmp(ptr,"to=",3)) { | |
2141 | /* nothing, inet_listen() parses this one */; | |
2142 | } else if (!strncmp(ptr,"ipv4",4)) { | |
2143 | /* nothing, inet_connect() and inet_listen() parse this one */; | |
2144 | } else if (!strncmp(ptr,"ipv6",4)) { | |
2145 | /* nothing, inet_connect() and inet_listen() parse this one */; | |
2146 | } else { | |
2147 | printf("Unknown option: %s\n", ptr); | |
2148 | goto fail; | |
2149 | } | |
2150 | } | |
2151 | if (!is_listen) | |
2152 | is_waitconnect = 0; | |
2153 | ||
2154 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
2155 | s = qemu_mallocz(sizeof(TCPCharDriver)); | |
2156 | ||
2157 | if (is_listen) { | |
2158 | chr->filename = qemu_malloc(256); | |
2159 | if (is_unix) { | |
2160 | pstrcpy(chr->filename, 256, "unix:"); | |
2161 | } else if (is_telnet) { | |
2162 | pstrcpy(chr->filename, 256, "telnet:"); | |
2163 | } else { | |
2164 | pstrcpy(chr->filename, 256, "tcp:"); | |
2165 | } | |
2166 | offset = strlen(chr->filename); | |
2167 | } | |
2168 | if (is_unix) { | |
2169 | if (is_listen) { | |
2170 | fd = unix_listen(host_str, chr->filename + offset, 256 - offset); | |
2171 | } else { | |
2172 | fd = unix_connect(host_str); | |
2173 | } | |
2174 | } else { | |
2175 | if (is_listen) { | |
2176 | fd = inet_listen(host_str, chr->filename + offset, 256 - offset, | |
2177 | SOCK_STREAM, 0); | |
2178 | } else { | |
2179 | fd = inet_connect(host_str, SOCK_STREAM); | |
2180 | } | |
2181 | } | |
2182 | if (fd < 0) | |
2183 | goto fail; | |
2184 | ||
2185 | if (!is_waitconnect) | |
2186 | socket_set_nonblock(fd); | |
2187 | ||
2188 | s->connected = 0; | |
2189 | s->fd = -1; | |
2190 | s->listen_fd = -1; | |
2191 | s->msgfd = -1; | |
2192 | s->is_unix = is_unix; | |
2193 | s->do_nodelay = do_nodelay && !is_unix; | |
2194 | ||
2195 | chr->opaque = s; | |
2196 | chr->chr_write = tcp_chr_write; | |
2197 | chr->chr_close = tcp_chr_close; | |
2198 | chr->get_msgfd = tcp_get_msgfd; | |
2199 | ||
2200 | if (is_listen) { | |
2201 | s->listen_fd = fd; | |
2202 | qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr); | |
2203 | if (is_telnet) | |
2204 | s->do_telnetopt = 1; | |
2205 | } else { | |
2206 | s->connected = 1; | |
2207 | s->fd = fd; | |
2208 | socket_set_nodelay(fd); | |
2209 | tcp_chr_connect(chr); | |
2210 | } | |
2211 | ||
2212 | if (is_listen && is_waitconnect) { | |
2213 | printf("QEMU waiting for connection on: %s\n", | |
2214 | chr->filename ? chr->filename : host_str); | |
2215 | tcp_chr_accept(chr); | |
2216 | socket_set_nonblock(s->listen_fd); | |
2217 | } | |
2218 | ||
2219 | return chr; | |
2220 | fail: | |
2221 | if (fd >= 0) | |
2222 | closesocket(fd); | |
2223 | qemu_free(s); | |
2224 | qemu_free(chr); | |
2225 | return NULL; | |
2226 | } | |
2227 | ||
2228 | static QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) | |
2229 | { | |
2230 | const char *p; | |
2231 | QemuOpts *opts; | |
2232 | ||
2233 | opts = qemu_opts_create(&qemu_chardev_opts, label, 1); | |
2234 | if (NULL == opts) | |
2235 | return NULL; | |
2236 | ||
2237 | if (strcmp(filename, "null") == 0) { | |
2238 | qemu_opt_set(opts, "backend", "null"); | |
2239 | return opts; | |
2240 | } | |
2241 | if (strstart(filename, "file:", &p)) { | |
2242 | qemu_opt_set(opts, "backend", "file"); | |
2243 | qemu_opt_set(opts, "path", p); | |
2244 | return opts; | |
2245 | } | |
2246 | if (strstart(filename, "pipe:", &p)) { | |
2247 | qemu_opt_set(opts, "backend", "pipe"); | |
2248 | qemu_opt_set(opts, "path", p); | |
2249 | return opts; | |
2250 | } | |
2251 | ||
2252 | qemu_opts_del(opts); | |
2253 | return NULL; | |
2254 | } | |
2255 | ||
2256 | static const struct { | |
2257 | const char *name; | |
2258 | CharDriverState *(*open)(QemuOpts *opts); | |
2259 | } backend_table[] = { | |
2260 | { .name = "null", .open = qemu_chr_open_null }, | |
2261 | #ifdef _WIN32 | |
2262 | { .name = "file", .open = qemu_chr_open_win_file_out }, | |
2263 | { .name = "pipe", .open = qemu_chr_open_win_pipe }, | |
2264 | #else | |
2265 | { .name = "file", .open = qemu_chr_open_file_out }, | |
2266 | { .name = "pipe", .open = qemu_chr_open_pipe }, | |
2267 | #endif | |
2268 | }; | |
2269 | ||
2270 | CharDriverState *qemu_chr_open_opts(QemuOpts *opts, | |
2271 | void (*init)(struct CharDriverState *s)) | |
2272 | { | |
2273 | CharDriverState *chr; | |
2274 | int i; | |
2275 | ||
2276 | if (qemu_opts_id(opts) == NULL) { | |
2277 | fprintf(stderr, "chardev: no id specified\n"); | |
2278 | return NULL; | |
2279 | } | |
2280 | ||
2281 | for (i = 0; i < ARRAY_SIZE(backend_table); i++) { | |
2282 | if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0) | |
2283 | break; | |
2284 | } | |
2285 | if (i == ARRAY_SIZE(backend_table)) { | |
2286 | fprintf(stderr, "chardev: backend \"%s\" not found\n", | |
2287 | qemu_opt_get(opts, "backend")); | |
2288 | return NULL; | |
2289 | } | |
2290 | ||
2291 | chr = backend_table[i].open(opts); | |
2292 | if (!chr) { | |
2293 | fprintf(stderr, "chardev: opening backend \"%s\" failed\n", | |
2294 | qemu_opt_get(opts, "backend")); | |
2295 | return NULL; | |
2296 | } | |
2297 | ||
2298 | if (!chr->filename) | |
2299 | chr->filename = qemu_strdup(qemu_opt_get(opts, "backend")); | |
2300 | chr->init = init; | |
2301 | chr->label = qemu_strdup(qemu_opts_id(opts)); | |
2302 | TAILQ_INSERT_TAIL(&chardevs, chr, next); | |
2303 | return chr; | |
2304 | } | |
2305 | ||
2306 | CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) | |
2307 | { | |
2308 | const char *p; | |
2309 | CharDriverState *chr; | |
2310 | QemuOpts *opts; | |
2311 | ||
2312 | opts = qemu_chr_parse_compat(label, filename); | |
2313 | if (opts) { | |
2314 | return qemu_chr_open_opts(opts, init); | |
2315 | } | |
2316 | ||
2317 | if (!strcmp(filename, "vc")) { | |
2318 | chr = text_console_init(NULL); | |
2319 | } else | |
2320 | if (strstart(filename, "vc:", &p)) { | |
2321 | chr = text_console_init(p); | |
2322 | } else | |
2323 | if (strstart(filename, "tcp:", &p)) { | |
2324 | chr = qemu_chr_open_tcp(p, 0, 0); | |
2325 | } else | |
2326 | if (strstart(filename, "telnet:", &p)) { | |
2327 | chr = qemu_chr_open_tcp(p, 1, 0); | |
2328 | } else | |
2329 | if (strstart(filename, "udp:", &p)) { | |
2330 | chr = qemu_chr_open_udp(p); | |
2331 | } else | |
2332 | if (strstart(filename, "mon:", &p)) { | |
2333 | chr = qemu_chr_open(label, p, NULL); | |
2334 | if (chr) { | |
2335 | chr = qemu_chr_open_mux(chr); | |
2336 | monitor_init(chr, MONITOR_USE_READLINE); | |
2337 | } else { | |
2338 | printf("Unable to open driver: %s\n", p); | |
2339 | } | |
2340 | } else if (!strcmp(filename, "msmouse")) { | |
2341 | chr = qemu_chr_open_msmouse(); | |
2342 | } else | |
2343 | #ifndef _WIN32 | |
2344 | if (strstart(filename, "unix:", &p)) { | |
2345 | chr = qemu_chr_open_tcp(p, 0, 1); | |
2346 | } else if (!strcmp(filename, "pty")) { | |
2347 | chr = qemu_chr_open_pty(); | |
2348 | } else if (!strcmp(filename, "stdio")) { | |
2349 | chr = qemu_chr_open_stdio(); | |
2350 | } else | |
2351 | #if defined(__linux__) | |
2352 | if (strstart(filename, "/dev/parport", NULL)) { | |
2353 | chr = qemu_chr_open_pp(filename); | |
2354 | } else | |
2355 | #elif defined(__FreeBSD__) || defined(__DragonFly__) | |
2356 | if (strstart(filename, "/dev/ppi", NULL)) { | |
2357 | chr = qemu_chr_open_pp(filename); | |
2358 | } else | |
2359 | #endif | |
2360 | #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ | |
2361 | || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) | |
2362 | if (strstart(filename, "/dev/", NULL)) { | |
2363 | chr = qemu_chr_open_tty(filename); | |
2364 | } else | |
2365 | #endif | |
2366 | #else /* !_WIN32 */ | |
2367 | if (strstart(filename, "COM", NULL)) { | |
2368 | chr = qemu_chr_open_win(filename); | |
2369 | } else | |
2370 | if (strstart(filename, "con:", NULL)) { | |
2371 | chr = qemu_chr_open_win_con(filename); | |
2372 | } else | |
2373 | #endif | |
2374 | #ifdef CONFIG_BRLAPI | |
2375 | if (!strcmp(filename, "braille")) { | |
2376 | chr = chr_baum_init(); | |
2377 | } else | |
2378 | #endif | |
2379 | { | |
2380 | chr = NULL; | |
2381 | } | |
2382 | ||
2383 | if (chr) { | |
2384 | if (!chr->filename) | |
2385 | chr->filename = qemu_strdup(filename); | |
2386 | chr->init = init; | |
2387 | chr->label = qemu_strdup(label); | |
2388 | TAILQ_INSERT_TAIL(&chardevs, chr, next); | |
2389 | } | |
2390 | return chr; | |
2391 | } | |
2392 | ||
2393 | void qemu_chr_close(CharDriverState *chr) | |
2394 | { | |
2395 | TAILQ_REMOVE(&chardevs, chr, next); | |
2396 | if (chr->chr_close) | |
2397 | chr->chr_close(chr); | |
2398 | qemu_free(chr->filename); | |
2399 | qemu_free(chr->label); | |
2400 | qemu_free(chr); | |
2401 | } | |
2402 | ||
2403 | void qemu_chr_info(Monitor *mon) | |
2404 | { | |
2405 | CharDriverState *chr; | |
2406 | ||
2407 | TAILQ_FOREACH(chr, &chardevs, next) { | |
2408 | monitor_printf(mon, "%s: filename=%s\n", chr->label, chr->filename); | |
2409 | } | |
2410 | } |