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6f97dba0 AL |
1 | /* |
2 | * QEMU System Emulator | |
3 | * | |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include "qemu-common.h" | |
25 | #include "net.h" | |
26 | #include "console.h" | |
27 | #include "sysemu.h" | |
28 | #include "qemu-timer.h" | |
29 | #include "qemu-char.h" | |
30 | #include "block.h" | |
cf3ebac7 AJ |
31 | #include "hw/usb.h" |
32 | #include "hw/baum.h" | |
aa71cf80 | 33 | #include "hw/msmouse.h" |
6f97dba0 AL |
34 | |
35 | #include <unistd.h> | |
36 | #include <fcntl.h> | |
37 | #include <signal.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> | |
24646c7e | 49 | #include <sys/resource.h> |
6f97dba0 AL |
50 | #include <sys/socket.h> |
51 | #include <netinet/in.h> | |
24646c7e BS |
52 | #include <net/if.h> |
53 | #ifdef __NetBSD__ | |
54 | #include <net/if_tap.h> | |
55 | #endif | |
56 | #ifdef __linux__ | |
57 | #include <linux/if_tun.h> | |
58 | #endif | |
59 | #include <arpa/inet.h> | |
6f97dba0 AL |
60 | #include <dirent.h> |
61 | #include <netdb.h> | |
62 | #include <sys/select.h> | |
6f97dba0 AL |
63 | #ifdef _BSD |
64 | #include <sys/stat.h> | |
24646c7e | 65 | #ifdef __FreeBSD__ |
6f97dba0 | 66 | #include <libutil.h> |
6972f935 BS |
67 | #include <dev/ppbus/ppi.h> |
68 | #include <dev/ppbus/ppbconf.h> | |
24646c7e BS |
69 | #else |
70 | #include <util.h> | |
6f97dba0 AL |
71 | #endif |
72 | #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__) | |
73 | #include <freebsd/stdlib.h> | |
74 | #else | |
75 | #ifdef __linux__ | |
6f97dba0 AL |
76 | #include <pty.h> |
77 | ||
78 | #include <linux/ppdev.h> | |
79 | #include <linux/parport.h> | |
80 | #endif | |
81 | #ifdef __sun__ | |
82 | #include <sys/stat.h> | |
83 | #include <sys/ethernet.h> | |
84 | #include <sys/sockio.h> | |
85 | #include <netinet/arp.h> | |
86 | #include <netinet/in.h> | |
87 | #include <netinet/in_systm.h> | |
88 | #include <netinet/ip.h> | |
89 | #include <netinet/ip_icmp.h> // must come after ip.h | |
90 | #include <netinet/udp.h> | |
91 | #include <netinet/tcp.h> | |
92 | #include <net/if.h> | |
93 | #include <syslog.h> | |
94 | #include <stropts.h> | |
95 | #endif | |
96 | #endif | |
97 | #endif | |
98 | ||
99 | #include "qemu_socket.h" | |
100 | ||
101 | /***********************************************************/ | |
102 | /* character device */ | |
103 | ||
2970a6c9 AL |
104 | static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs = |
105 | TAILQ_HEAD_INITIALIZER(chardevs); | |
106 | static int initial_reset_issued; | |
107 | ||
6f97dba0 AL |
108 | static void qemu_chr_event(CharDriverState *s, int event) |
109 | { | |
110 | if (!s->chr_event) | |
111 | return; | |
112 | s->chr_event(s->handler_opaque, event); | |
113 | } | |
114 | ||
115 | static void qemu_chr_reset_bh(void *opaque) | |
116 | { | |
117 | CharDriverState *s = opaque; | |
118 | qemu_chr_event(s, CHR_EVENT_RESET); | |
119 | qemu_bh_delete(s->bh); | |
120 | s->bh = NULL; | |
121 | } | |
122 | ||
123 | void qemu_chr_reset(CharDriverState *s) | |
124 | { | |
2970a6c9 | 125 | if (s->bh == NULL && initial_reset_issued) { |
6f97dba0 AL |
126 | s->bh = qemu_bh_new(qemu_chr_reset_bh, s); |
127 | qemu_bh_schedule(s->bh); | |
128 | } | |
129 | } | |
130 | ||
2970a6c9 AL |
131 | void qemu_chr_initial_reset(void) |
132 | { | |
133 | CharDriverState *chr; | |
134 | ||
135 | initial_reset_issued = 1; | |
136 | ||
137 | TAILQ_FOREACH(chr, &chardevs, next) { | |
138 | qemu_chr_reset(chr); | |
139 | } | |
140 | } | |
141 | ||
6f97dba0 AL |
142 | int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len) |
143 | { | |
144 | return s->chr_write(s, buf, len); | |
145 | } | |
146 | ||
147 | int qemu_chr_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_can_read(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_read(CharDriverState *s, uint8_t *buf, int len) | |
162 | { | |
163 | s->chr_read(s->handler_opaque, buf, len); | |
164 | } | |
165 | ||
166 | void qemu_chr_accept_input(CharDriverState *s) | |
167 | { | |
168 | if (s->chr_accept_input) | |
169 | s->chr_accept_input(s); | |
170 | } | |
171 | ||
172 | void qemu_chr_printf(CharDriverState *s, const char *fmt, ...) | |
173 | { | |
174 | char buf[4096]; | |
175 | va_list ap; | |
176 | va_start(ap, fmt); | |
177 | vsnprintf(buf, sizeof(buf), fmt, ap); | |
178 | qemu_chr_write(s, (uint8_t *)buf, strlen(buf)); | |
179 | va_end(ap); | |
180 | } | |
181 | ||
182 | void qemu_chr_send_event(CharDriverState *s, int event) | |
183 | { | |
184 | if (s->chr_send_event) | |
185 | s->chr_send_event(s, event); | |
186 | } | |
187 | ||
188 | void qemu_chr_add_handlers(CharDriverState *s, | |
189 | IOCanRWHandler *fd_can_read, | |
190 | IOReadHandler *fd_read, | |
191 | IOEventHandler *fd_event, | |
192 | void *opaque) | |
193 | { | |
194 | s->chr_can_read = fd_can_read; | |
195 | s->chr_read = fd_read; | |
196 | s->chr_event = fd_event; | |
197 | s->handler_opaque = opaque; | |
198 | if (s->chr_update_read_handler) | |
199 | s->chr_update_read_handler(s); | |
200 | } | |
201 | ||
202 | static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
203 | { | |
204 | return len; | |
205 | } | |
206 | ||
207 | static CharDriverState *qemu_chr_open_null(void) | |
208 | { | |
209 | CharDriverState *chr; | |
210 | ||
211 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 AL |
212 | chr->chr_write = null_chr_write; |
213 | return chr; | |
214 | } | |
215 | ||
216 | /* MUX driver for serial I/O splitting */ | |
217 | static int term_timestamps; | |
218 | static int64_t term_timestamps_start; | |
219 | #define MAX_MUX 4 | |
220 | #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ | |
221 | #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) | |
222 | typedef struct { | |
223 | IOCanRWHandler *chr_can_read[MAX_MUX]; | |
224 | IOReadHandler *chr_read[MAX_MUX]; | |
225 | IOEventHandler *chr_event[MAX_MUX]; | |
226 | void *ext_opaque[MAX_MUX]; | |
227 | CharDriverState *drv; | |
228 | unsigned char buffer[MUX_BUFFER_SIZE]; | |
229 | int prod; | |
230 | int cons; | |
231 | int mux_cnt; | |
232 | int term_got_escape; | |
233 | int max_size; | |
234 | } MuxDriver; | |
235 | ||
236 | ||
237 | static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
238 | { | |
239 | MuxDriver *d = chr->opaque; | |
240 | int ret; | |
241 | if (!term_timestamps) { | |
242 | ret = d->drv->chr_write(d->drv, buf, len); | |
243 | } else { | |
244 | int i; | |
245 | ||
246 | ret = 0; | |
247 | for(i = 0; i < len; i++) { | |
248 | ret += d->drv->chr_write(d->drv, buf+i, 1); | |
249 | if (buf[i] == '\n') { | |
250 | char buf1[64]; | |
251 | int64_t ti; | |
252 | int secs; | |
253 | ||
254 | ti = qemu_get_clock(rt_clock); | |
255 | if (term_timestamps_start == -1) | |
256 | term_timestamps_start = ti; | |
257 | ti -= term_timestamps_start; | |
a4bb1db8 | 258 | secs = ti / 1000; |
6f97dba0 AL |
259 | snprintf(buf1, sizeof(buf1), |
260 | "[%02d:%02d:%02d.%03d] ", | |
261 | secs / 3600, | |
262 | (secs / 60) % 60, | |
263 | secs % 60, | |
a4bb1db8 | 264 | (int)(ti % 1000)); |
6f97dba0 AL |
265 | d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1)); |
266 | } | |
267 | } | |
268 | } | |
269 | return ret; | |
270 | } | |
271 | ||
272 | static const char * const mux_help[] = { | |
273 | "% h print this help\n\r", | |
274 | "% x exit emulator\n\r", | |
275 | "% s save disk data back to file (if -snapshot)\n\r", | |
276 | "% t toggle console timestamps\n\r" | |
277 | "% b send break (magic sysrq)\n\r", | |
278 | "% c switch between console and monitor\n\r", | |
279 | "% % sends %\n\r", | |
280 | NULL | |
281 | }; | |
282 | ||
283 | int term_escape_char = 0x01; /* ctrl-a is used for escape */ | |
284 | static void mux_print_help(CharDriverState *chr) | |
285 | { | |
286 | int i, j; | |
287 | char ebuf[15] = "Escape-Char"; | |
288 | char cbuf[50] = "\n\r"; | |
289 | ||
290 | if (term_escape_char > 0 && term_escape_char < 26) { | |
291 | snprintf(cbuf, sizeof(cbuf), "\n\r"); | |
292 | snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); | |
293 | } else { | |
294 | snprintf(cbuf, sizeof(cbuf), | |
295 | "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r", | |
296 | term_escape_char); | |
297 | } | |
298 | chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); | |
299 | for (i = 0; mux_help[i] != NULL; i++) { | |
300 | for (j=0; mux_help[i][j] != '\0'; j++) { | |
301 | if (mux_help[i][j] == '%') | |
302 | chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); | |
303 | else | |
304 | chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1); | |
305 | } | |
306 | } | |
307 | } | |
308 | ||
309 | static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) | |
310 | { | |
311 | if (d->term_got_escape) { | |
312 | d->term_got_escape = 0; | |
313 | if (ch == term_escape_char) | |
314 | goto send_char; | |
315 | switch(ch) { | |
316 | case '?': | |
317 | case 'h': | |
318 | mux_print_help(chr); | |
319 | break; | |
320 | case 'x': | |
321 | { | |
322 | const char *term = "QEMU: Terminated\n\r"; | |
323 | chr->chr_write(chr,(uint8_t *)term,strlen(term)); | |
324 | exit(0); | |
325 | break; | |
326 | } | |
327 | case 's': | |
328 | { | |
329 | int i; | |
330 | for (i = 0; i < nb_drives; i++) { | |
331 | bdrv_commit(drives_table[i].bdrv); | |
332 | } | |
333 | } | |
334 | break; | |
335 | case 'b': | |
336 | qemu_chr_event(chr, CHR_EVENT_BREAK); | |
337 | break; | |
338 | case 'c': | |
339 | /* Switch to the next registered device */ | |
340 | chr->focus++; | |
341 | if (chr->focus >= d->mux_cnt) | |
342 | chr->focus = 0; | |
343 | break; | |
344 | case 't': | |
345 | term_timestamps = !term_timestamps; | |
346 | term_timestamps_start = -1; | |
347 | break; | |
348 | } | |
349 | } else if (ch == term_escape_char) { | |
350 | d->term_got_escape = 1; | |
351 | } else { | |
352 | send_char: | |
353 | return 1; | |
354 | } | |
355 | return 0; | |
356 | } | |
357 | ||
358 | static void mux_chr_accept_input(CharDriverState *chr) | |
359 | { | |
360 | int m = chr->focus; | |
361 | MuxDriver *d = chr->opaque; | |
362 | ||
363 | while (d->prod != d->cons && | |
364 | d->chr_can_read[m] && | |
365 | d->chr_can_read[m](d->ext_opaque[m])) { | |
366 | d->chr_read[m](d->ext_opaque[m], | |
367 | &d->buffer[d->cons++ & MUX_BUFFER_MASK], 1); | |
368 | } | |
369 | } | |
370 | ||
371 | static int mux_chr_can_read(void *opaque) | |
372 | { | |
373 | CharDriverState *chr = opaque; | |
374 | MuxDriver *d = chr->opaque; | |
375 | ||
376 | if ((d->prod - d->cons) < MUX_BUFFER_SIZE) | |
377 | return 1; | |
378 | if (d->chr_can_read[chr->focus]) | |
379 | return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]); | |
380 | return 0; | |
381 | } | |
382 | ||
383 | static void mux_chr_read(void *opaque, const uint8_t *buf, int size) | |
384 | { | |
385 | CharDriverState *chr = opaque; | |
386 | MuxDriver *d = chr->opaque; | |
387 | int m = chr->focus; | |
388 | int i; | |
389 | ||
390 | mux_chr_accept_input (opaque); | |
391 | ||
392 | for(i = 0; i < size; i++) | |
393 | if (mux_proc_byte(chr, d, buf[i])) { | |
394 | if (d->prod == d->cons && | |
395 | d->chr_can_read[m] && | |
396 | d->chr_can_read[m](d->ext_opaque[m])) | |
397 | d->chr_read[m](d->ext_opaque[m], &buf[i], 1); | |
398 | else | |
399 | d->buffer[d->prod++ & MUX_BUFFER_MASK] = buf[i]; | |
400 | } | |
401 | } | |
402 | ||
403 | static void mux_chr_event(void *opaque, int event) | |
404 | { | |
405 | CharDriverState *chr = opaque; | |
406 | MuxDriver *d = chr->opaque; | |
407 | int i; | |
408 | ||
409 | /* Send the event to all registered listeners */ | |
410 | for (i = 0; i < d->mux_cnt; i++) | |
411 | if (d->chr_event[i]) | |
412 | d->chr_event[i](d->ext_opaque[i], event); | |
413 | } | |
414 | ||
415 | static void mux_chr_update_read_handler(CharDriverState *chr) | |
416 | { | |
417 | MuxDriver *d = chr->opaque; | |
418 | ||
419 | if (d->mux_cnt >= MAX_MUX) { | |
420 | fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n"); | |
421 | return; | |
422 | } | |
423 | d->ext_opaque[d->mux_cnt] = chr->handler_opaque; | |
424 | d->chr_can_read[d->mux_cnt] = chr->chr_can_read; | |
425 | d->chr_read[d->mux_cnt] = chr->chr_read; | |
426 | d->chr_event[d->mux_cnt] = chr->chr_event; | |
427 | /* Fix up the real driver with mux routines */ | |
428 | if (d->mux_cnt == 0) { | |
429 | qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, | |
430 | mux_chr_event, chr); | |
431 | } | |
432 | chr->focus = d->mux_cnt; | |
433 | d->mux_cnt++; | |
434 | } | |
435 | ||
436 | static CharDriverState *qemu_chr_open_mux(CharDriverState *drv) | |
437 | { | |
438 | CharDriverState *chr; | |
439 | MuxDriver *d; | |
440 | ||
441 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 | 442 | d = qemu_mallocz(sizeof(MuxDriver)); |
6f97dba0 AL |
443 | |
444 | chr->opaque = d; | |
445 | d->drv = drv; | |
446 | chr->focus = -1; | |
447 | chr->chr_write = mux_chr_write; | |
448 | chr->chr_update_read_handler = mux_chr_update_read_handler; | |
449 | chr->chr_accept_input = mux_chr_accept_input; | |
450 | return chr; | |
451 | } | |
452 | ||
453 | ||
454 | #ifdef _WIN32 | |
d247d25f | 455 | int send_all(int fd, const void *buf, int len1) |
6f97dba0 AL |
456 | { |
457 | int ret, len; | |
458 | ||
459 | len = len1; | |
460 | while (len > 0) { | |
461 | ret = send(fd, buf, len, 0); | |
462 | if (ret < 0) { | |
6f97dba0 AL |
463 | errno = WSAGetLastError(); |
464 | if (errno != WSAEWOULDBLOCK) { | |
465 | return -1; | |
466 | } | |
467 | } else if (ret == 0) { | |
468 | break; | |
469 | } else { | |
470 | buf += ret; | |
471 | len -= ret; | |
472 | } | |
473 | } | |
474 | return len1 - len; | |
475 | } | |
476 | ||
477 | #else | |
478 | ||
479 | static int unix_write(int fd, const uint8_t *buf, int len1) | |
480 | { | |
481 | int ret, len; | |
482 | ||
483 | len = len1; | |
484 | while (len > 0) { | |
485 | ret = write(fd, buf, len); | |
486 | if (ret < 0) { | |
487 | if (errno != EINTR && errno != EAGAIN) | |
488 | return -1; | |
489 | } else if (ret == 0) { | |
490 | break; | |
491 | } else { | |
492 | buf += ret; | |
493 | len -= ret; | |
494 | } | |
495 | } | |
496 | return len1 - len; | |
497 | } | |
498 | ||
d247d25f | 499 | int send_all(int fd, const void *buf, int len1) |
6f97dba0 AL |
500 | { |
501 | return unix_write(fd, buf, len1); | |
502 | } | |
503 | #endif /* !_WIN32 */ | |
504 | ||
505 | #ifndef _WIN32 | |
506 | ||
507 | typedef struct { | |
508 | int fd_in, fd_out; | |
509 | int max_size; | |
510 | } FDCharDriver; | |
511 | ||
512 | #define STDIO_MAX_CLIENTS 1 | |
513 | static int stdio_nb_clients = 0; | |
514 | ||
515 | static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
516 | { | |
517 | FDCharDriver *s = chr->opaque; | |
518 | return send_all(s->fd_out, buf, len); | |
519 | } | |
520 | ||
521 | static int fd_chr_read_poll(void *opaque) | |
522 | { | |
523 | CharDriverState *chr = opaque; | |
524 | FDCharDriver *s = chr->opaque; | |
525 | ||
526 | s->max_size = qemu_chr_can_read(chr); | |
527 | return s->max_size; | |
528 | } | |
529 | ||
530 | static void fd_chr_read(void *opaque) | |
531 | { | |
532 | CharDriverState *chr = opaque; | |
533 | FDCharDriver *s = chr->opaque; | |
534 | int size, len; | |
535 | uint8_t buf[1024]; | |
536 | ||
537 | len = sizeof(buf); | |
538 | if (len > s->max_size) | |
539 | len = s->max_size; | |
540 | if (len == 0) | |
541 | return; | |
542 | size = read(s->fd_in, buf, len); | |
543 | if (size == 0) { | |
544 | /* FD has been closed. Remove it from the active list. */ | |
545 | qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); | |
546 | return; | |
547 | } | |
548 | if (size > 0) { | |
549 | qemu_chr_read(chr, buf, size); | |
550 | } | |
551 | } | |
552 | ||
553 | static void fd_chr_update_read_handler(CharDriverState *chr) | |
554 | { | |
555 | FDCharDriver *s = chr->opaque; | |
556 | ||
557 | if (s->fd_in >= 0) { | |
558 | if (nographic && s->fd_in == 0) { | |
559 | } else { | |
560 | qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, | |
561 | fd_chr_read, NULL, chr); | |
562 | } | |
563 | } | |
564 | } | |
565 | ||
566 | static void fd_chr_close(struct CharDriverState *chr) | |
567 | { | |
568 | FDCharDriver *s = chr->opaque; | |
569 | ||
570 | if (s->fd_in >= 0) { | |
571 | if (nographic && s->fd_in == 0) { | |
572 | } else { | |
573 | qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); | |
574 | } | |
575 | } | |
576 | ||
577 | qemu_free(s); | |
578 | } | |
579 | ||
580 | /* open a character device to a unix fd */ | |
581 | static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) | |
582 | { | |
583 | CharDriverState *chr; | |
584 | FDCharDriver *s; | |
585 | ||
586 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 | 587 | s = qemu_mallocz(sizeof(FDCharDriver)); |
6f97dba0 AL |
588 | s->fd_in = fd_in; |
589 | s->fd_out = fd_out; | |
590 | chr->opaque = s; | |
591 | chr->chr_write = fd_chr_write; | |
592 | chr->chr_update_read_handler = fd_chr_update_read_handler; | |
593 | chr->chr_close = fd_chr_close; | |
594 | ||
595 | qemu_chr_reset(chr); | |
596 | ||
597 | return chr; | |
598 | } | |
599 | ||
600 | static CharDriverState *qemu_chr_open_file_out(const char *file_out) | |
601 | { | |
602 | int fd_out; | |
603 | ||
604 | TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666)); | |
605 | if (fd_out < 0) | |
606 | return NULL; | |
607 | return qemu_chr_open_fd(-1, fd_out); | |
608 | } | |
609 | ||
610 | static CharDriverState *qemu_chr_open_pipe(const char *filename) | |
611 | { | |
612 | int fd_in, fd_out; | |
613 | char filename_in[256], filename_out[256]; | |
614 | ||
615 | snprintf(filename_in, 256, "%s.in", filename); | |
616 | snprintf(filename_out, 256, "%s.out", filename); | |
617 | TFR(fd_in = open(filename_in, O_RDWR | O_BINARY)); | |
618 | TFR(fd_out = open(filename_out, O_RDWR | O_BINARY)); | |
619 | if (fd_in < 0 || fd_out < 0) { | |
620 | if (fd_in >= 0) | |
621 | close(fd_in); | |
622 | if (fd_out >= 0) | |
623 | close(fd_out); | |
624 | TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); | |
625 | if (fd_in < 0) | |
626 | return NULL; | |
627 | } | |
628 | return qemu_chr_open_fd(fd_in, fd_out); | |
629 | } | |
630 | ||
631 | ||
632 | /* for STDIO, we handle the case where several clients use it | |
633 | (nographic mode) */ | |
634 | ||
635 | #define TERM_FIFO_MAX_SIZE 1 | |
636 | ||
637 | static uint8_t term_fifo[TERM_FIFO_MAX_SIZE]; | |
638 | static int term_fifo_size; | |
639 | ||
640 | static int stdio_read_poll(void *opaque) | |
641 | { | |
642 | CharDriverState *chr = opaque; | |
643 | ||
644 | /* try to flush the queue if needed */ | |
645 | if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { | |
646 | qemu_chr_read(chr, term_fifo, 1); | |
647 | term_fifo_size = 0; | |
648 | } | |
649 | /* see if we can absorb more chars */ | |
650 | if (term_fifo_size == 0) | |
651 | return 1; | |
652 | else | |
653 | return 0; | |
654 | } | |
655 | ||
656 | static void stdio_read(void *opaque) | |
657 | { | |
658 | int size; | |
659 | uint8_t buf[1]; | |
660 | CharDriverState *chr = opaque; | |
661 | ||
662 | size = read(0, buf, 1); | |
663 | if (size == 0) { | |
664 | /* stdin has been closed. Remove it from the active list. */ | |
665 | qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); | |
666 | return; | |
667 | } | |
668 | if (size > 0) { | |
669 | if (qemu_chr_can_read(chr) > 0) { | |
670 | qemu_chr_read(chr, buf, 1); | |
671 | } else if (term_fifo_size == 0) { | |
672 | term_fifo[term_fifo_size++] = buf[0]; | |
673 | } | |
674 | } | |
675 | } | |
676 | ||
677 | /* init terminal so that we can grab keys */ | |
678 | static struct termios oldtty; | |
679 | static int old_fd0_flags; | |
680 | static int term_atexit_done; | |
681 | ||
682 | static void term_exit(void) | |
683 | { | |
684 | tcsetattr (0, TCSANOW, &oldtty); | |
685 | fcntl(0, F_SETFL, old_fd0_flags); | |
686 | } | |
687 | ||
688 | static void term_init(void) | |
689 | { | |
690 | struct termios tty; | |
691 | ||
692 | tcgetattr (0, &tty); | |
693 | oldtty = tty; | |
694 | old_fd0_flags = fcntl(0, F_GETFL); | |
695 | ||
696 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP | |
697 | |INLCR|IGNCR|ICRNL|IXON); | |
698 | tty.c_oflag |= OPOST; | |
699 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); | |
700 | /* if graphical mode, we allow Ctrl-C handling */ | |
701 | if (nographic) | |
702 | tty.c_lflag &= ~ISIG; | |
703 | tty.c_cflag &= ~(CSIZE|PARENB); | |
704 | tty.c_cflag |= CS8; | |
705 | tty.c_cc[VMIN] = 1; | |
706 | tty.c_cc[VTIME] = 0; | |
707 | ||
708 | tcsetattr (0, TCSANOW, &tty); | |
709 | ||
710 | if (!term_atexit_done++) | |
711 | atexit(term_exit); | |
712 | ||
713 | fcntl(0, F_SETFL, O_NONBLOCK); | |
714 | } | |
715 | ||
716 | static void qemu_chr_close_stdio(struct CharDriverState *chr) | |
717 | { | |
718 | term_exit(); | |
719 | stdio_nb_clients--; | |
720 | qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); | |
721 | fd_chr_close(chr); | |
722 | } | |
723 | ||
724 | static CharDriverState *qemu_chr_open_stdio(void) | |
725 | { | |
726 | CharDriverState *chr; | |
727 | ||
728 | if (stdio_nb_clients >= STDIO_MAX_CLIENTS) | |
729 | return NULL; | |
730 | chr = qemu_chr_open_fd(0, 1); | |
731 | chr->chr_close = qemu_chr_close_stdio; | |
732 | qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); | |
733 | stdio_nb_clients++; | |
734 | term_init(); | |
735 | ||
736 | return chr; | |
737 | } | |
738 | ||
739 | #ifdef __sun__ | |
740 | /* Once Solaris has openpty(), this is going to be removed. */ | |
741 | int openpty(int *amaster, int *aslave, char *name, | |
742 | struct termios *termp, struct winsize *winp) | |
743 | { | |
744 | const char *slave; | |
745 | int mfd = -1, sfd = -1; | |
746 | ||
747 | *amaster = *aslave = -1; | |
748 | ||
749 | mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY); | |
750 | if (mfd < 0) | |
751 | goto err; | |
752 | ||
753 | if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) | |
754 | goto err; | |
755 | ||
756 | if ((slave = ptsname(mfd)) == NULL) | |
757 | goto err; | |
758 | ||
759 | if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) | |
760 | goto err; | |
761 | ||
762 | if (ioctl(sfd, I_PUSH, "ptem") == -1 || | |
763 | (termp != NULL && tcgetattr(sfd, termp) < 0)) | |
764 | goto err; | |
765 | ||
766 | if (amaster) | |
767 | *amaster = mfd; | |
768 | if (aslave) | |
769 | *aslave = sfd; | |
770 | if (winp) | |
771 | ioctl(sfd, TIOCSWINSZ, winp); | |
772 | ||
773 | return 0; | |
774 | ||
775 | err: | |
776 | if (sfd != -1) | |
777 | close(sfd); | |
778 | close(mfd); | |
779 | return -1; | |
780 | } | |
781 | ||
782 | void cfmakeraw (struct termios *termios_p) | |
783 | { | |
784 | termios_p->c_iflag &= | |
785 | ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); | |
786 | termios_p->c_oflag &= ~OPOST; | |
787 | termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); | |
788 | termios_p->c_cflag &= ~(CSIZE|PARENB); | |
789 | termios_p->c_cflag |= CS8; | |
790 | ||
791 | termios_p->c_cc[VMIN] = 0; | |
792 | termios_p->c_cc[VTIME] = 0; | |
793 | } | |
794 | #endif | |
795 | ||
796 | #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ | |
797 | || defined(__NetBSD__) || defined(__OpenBSD__) | |
798 | ||
799 | typedef struct { | |
800 | int fd; | |
801 | int connected; | |
802 | int polling; | |
803 | int read_bytes; | |
804 | QEMUTimer *timer; | |
805 | } PtyCharDriver; | |
806 | ||
807 | static void pty_chr_update_read_handler(CharDriverState *chr); | |
808 | static void pty_chr_state(CharDriverState *chr, int connected); | |
809 | ||
810 | static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
811 | { | |
812 | PtyCharDriver *s = chr->opaque; | |
813 | ||
814 | if (!s->connected) { | |
815 | /* guest sends data, check for (re-)connect */ | |
816 | pty_chr_update_read_handler(chr); | |
817 | return 0; | |
818 | } | |
819 | return send_all(s->fd, buf, len); | |
820 | } | |
821 | ||
822 | static int pty_chr_read_poll(void *opaque) | |
823 | { | |
824 | CharDriverState *chr = opaque; | |
825 | PtyCharDriver *s = chr->opaque; | |
826 | ||
827 | s->read_bytes = qemu_chr_can_read(chr); | |
828 | return s->read_bytes; | |
829 | } | |
830 | ||
831 | static void pty_chr_read(void *opaque) | |
832 | { | |
833 | CharDriverState *chr = opaque; | |
834 | PtyCharDriver *s = chr->opaque; | |
835 | int size, len; | |
836 | uint8_t buf[1024]; | |
837 | ||
838 | len = sizeof(buf); | |
839 | if (len > s->read_bytes) | |
840 | len = s->read_bytes; | |
841 | if (len == 0) | |
842 | return; | |
843 | size = read(s->fd, buf, len); | |
844 | if ((size == -1 && errno == EIO) || | |
845 | (size == 0)) { | |
846 | pty_chr_state(chr, 0); | |
847 | return; | |
848 | } | |
849 | if (size > 0) { | |
850 | pty_chr_state(chr, 1); | |
851 | qemu_chr_read(chr, buf, size); | |
852 | } | |
853 | } | |
854 | ||
855 | static void pty_chr_update_read_handler(CharDriverState *chr) | |
856 | { | |
857 | PtyCharDriver *s = chr->opaque; | |
858 | ||
859 | qemu_set_fd_handler2(s->fd, pty_chr_read_poll, | |
860 | pty_chr_read, NULL, chr); | |
861 | s->polling = 1; | |
862 | /* | |
863 | * Short timeout here: just need wait long enougth that qemu makes | |
864 | * it through the poll loop once. When reconnected we want a | |
865 | * short timeout so we notice it almost instantly. Otherwise | |
866 | * read() gives us -EIO instantly, making pty_chr_state() reset the | |
867 | * timeout to the normal (much longer) poll interval before the | |
868 | * timer triggers. | |
869 | */ | |
870 | qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10); | |
871 | } | |
872 | ||
873 | static void pty_chr_state(CharDriverState *chr, int connected) | |
874 | { | |
875 | PtyCharDriver *s = chr->opaque; | |
876 | ||
877 | if (!connected) { | |
878 | qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); | |
879 | s->connected = 0; | |
880 | s->polling = 0; | |
881 | /* (re-)connect poll interval for idle guests: once per second. | |
882 | * We check more frequently in case the guests sends data to | |
883 | * the virtual device linked to our pty. */ | |
884 | qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000); | |
885 | } else { | |
886 | if (!s->connected) | |
887 | qemu_chr_reset(chr); | |
888 | s->connected = 1; | |
889 | } | |
890 | } | |
891 | ||
892 | static void pty_chr_timer(void *opaque) | |
893 | { | |
894 | struct CharDriverState *chr = opaque; | |
895 | PtyCharDriver *s = chr->opaque; | |
896 | ||
897 | if (s->connected) | |
898 | return; | |
899 | if (s->polling) { | |
900 | /* If we arrive here without polling being cleared due | |
901 | * read returning -EIO, then we are (re-)connected */ | |
902 | pty_chr_state(chr, 1); | |
903 | return; | |
904 | } | |
905 | ||
906 | /* Next poll ... */ | |
907 | pty_chr_update_read_handler(chr); | |
908 | } | |
909 | ||
910 | static void pty_chr_close(struct CharDriverState *chr) | |
911 | { | |
912 | PtyCharDriver *s = chr->opaque; | |
913 | ||
914 | qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); | |
915 | close(s->fd); | |
916 | qemu_free(s); | |
917 | } | |
918 | ||
919 | static CharDriverState *qemu_chr_open_pty(void) | |
920 | { | |
921 | CharDriverState *chr; | |
922 | PtyCharDriver *s; | |
923 | struct termios tty; | |
924 | int slave_fd, len; | |
925 | #if defined(__OpenBSD__) | |
926 | char pty_name[PATH_MAX]; | |
927 | #define q_ptsname(x) pty_name | |
928 | #else | |
929 | char *pty_name = NULL; | |
930 | #define q_ptsname(x) ptsname(x) | |
931 | #endif | |
932 | ||
933 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 | 934 | s = qemu_mallocz(sizeof(PtyCharDriver)); |
6f97dba0 AL |
935 | |
936 | if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { | |
937 | return NULL; | |
938 | } | |
939 | ||
940 | /* Set raw attributes on the pty. */ | |
c3b972c3 | 941 | tcgetattr(slave_fd, &tty); |
6f97dba0 AL |
942 | cfmakeraw(&tty); |
943 | tcsetattr(slave_fd, TCSAFLUSH, &tty); | |
944 | close(slave_fd); | |
945 | ||
946 | len = strlen(q_ptsname(s->fd)) + 5; | |
947 | chr->filename = qemu_malloc(len); | |
948 | snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd)); | |
949 | fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd)); | |
950 | ||
951 | chr->opaque = s; | |
952 | chr->chr_write = pty_chr_write; | |
953 | chr->chr_update_read_handler = pty_chr_update_read_handler; | |
954 | chr->chr_close = pty_chr_close; | |
955 | ||
956 | s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr); | |
957 | ||
958 | return chr; | |
959 | } | |
960 | ||
961 | static void tty_serial_init(int fd, int speed, | |
962 | int parity, int data_bits, int stop_bits) | |
963 | { | |
964 | struct termios tty; | |
965 | speed_t spd; | |
966 | ||
967 | #if 0 | |
968 | printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n", | |
969 | speed, parity, data_bits, stop_bits); | |
970 | #endif | |
971 | tcgetattr (fd, &tty); | |
972 | ||
973 | #define MARGIN 1.1 | |
974 | if (speed <= 50 * MARGIN) | |
975 | spd = B50; | |
976 | else if (speed <= 75 * MARGIN) | |
977 | spd = B75; | |
978 | else if (speed <= 300 * MARGIN) | |
979 | spd = B300; | |
980 | else if (speed <= 600 * MARGIN) | |
981 | spd = B600; | |
982 | else if (speed <= 1200 * MARGIN) | |
983 | spd = B1200; | |
984 | else if (speed <= 2400 * MARGIN) | |
985 | spd = B2400; | |
986 | else if (speed <= 4800 * MARGIN) | |
987 | spd = B4800; | |
988 | else if (speed <= 9600 * MARGIN) | |
989 | spd = B9600; | |
990 | else if (speed <= 19200 * MARGIN) | |
991 | spd = B19200; | |
992 | else if (speed <= 38400 * MARGIN) | |
993 | spd = B38400; | |
994 | else if (speed <= 57600 * MARGIN) | |
995 | spd = B57600; | |
996 | else if (speed <= 115200 * MARGIN) | |
997 | spd = B115200; | |
998 | else | |
999 | spd = B115200; | |
1000 | ||
1001 | cfsetispeed(&tty, spd); | |
1002 | cfsetospeed(&tty, spd); | |
1003 | ||
1004 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP | |
1005 | |INLCR|IGNCR|ICRNL|IXON); | |
1006 | tty.c_oflag |= OPOST; | |
1007 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); | |
1008 | tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); | |
1009 | switch(data_bits) { | |
1010 | default: | |
1011 | case 8: | |
1012 | tty.c_cflag |= CS8; | |
1013 | break; | |
1014 | case 7: | |
1015 | tty.c_cflag |= CS7; | |
1016 | break; | |
1017 | case 6: | |
1018 | tty.c_cflag |= CS6; | |
1019 | break; | |
1020 | case 5: | |
1021 | tty.c_cflag |= CS5; | |
1022 | break; | |
1023 | } | |
1024 | switch(parity) { | |
1025 | default: | |
1026 | case 'N': | |
1027 | break; | |
1028 | case 'E': | |
1029 | tty.c_cflag |= PARENB; | |
1030 | break; | |
1031 | case 'O': | |
1032 | tty.c_cflag |= PARENB | PARODD; | |
1033 | break; | |
1034 | } | |
1035 | if (stop_bits == 2) | |
1036 | tty.c_cflag |= CSTOPB; | |
1037 | ||
1038 | tcsetattr (fd, TCSANOW, &tty); | |
1039 | } | |
1040 | ||
1041 | static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) | |
1042 | { | |
1043 | FDCharDriver *s = chr->opaque; | |
1044 | ||
1045 | switch(cmd) { | |
1046 | case CHR_IOCTL_SERIAL_SET_PARAMS: | |
1047 | { | |
1048 | QEMUSerialSetParams *ssp = arg; | |
1049 | tty_serial_init(s->fd_in, ssp->speed, ssp->parity, | |
1050 | ssp->data_bits, ssp->stop_bits); | |
1051 | } | |
1052 | break; | |
1053 | case CHR_IOCTL_SERIAL_SET_BREAK: | |
1054 | { | |
1055 | int enable = *(int *)arg; | |
1056 | if (enable) | |
1057 | tcsendbreak(s->fd_in, 1); | |
1058 | } | |
1059 | break; | |
1060 | case CHR_IOCTL_SERIAL_GET_TIOCM: | |
1061 | { | |
1062 | int sarg = 0; | |
1063 | int *targ = (int *)arg; | |
1064 | ioctl(s->fd_in, TIOCMGET, &sarg); | |
1065 | *targ = 0; | |
b4abdfa4 | 1066 | if (sarg & TIOCM_CTS) |
6f97dba0 | 1067 | *targ |= CHR_TIOCM_CTS; |
b4abdfa4 | 1068 | if (sarg & TIOCM_CAR) |
6f97dba0 | 1069 | *targ |= CHR_TIOCM_CAR; |
b4abdfa4 | 1070 | if (sarg & TIOCM_DSR) |
6f97dba0 | 1071 | *targ |= CHR_TIOCM_DSR; |
b4abdfa4 | 1072 | if (sarg & TIOCM_RI) |
6f97dba0 | 1073 | *targ |= CHR_TIOCM_RI; |
b4abdfa4 | 1074 | if (sarg & TIOCM_DTR) |
6f97dba0 | 1075 | *targ |= CHR_TIOCM_DTR; |
b4abdfa4 | 1076 | if (sarg & TIOCM_RTS) |
6f97dba0 AL |
1077 | *targ |= CHR_TIOCM_RTS; |
1078 | } | |
1079 | break; | |
1080 | case CHR_IOCTL_SERIAL_SET_TIOCM: | |
1081 | { | |
1082 | int sarg = *(int *)arg; | |
1083 | int targ = 0; | |
b4abdfa4 AJ |
1084 | ioctl(s->fd_in, TIOCMGET, &targ); |
1085 | targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR | |
1086 | | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); | |
1087 | if (sarg & CHR_TIOCM_CTS) | |
1088 | targ |= TIOCM_CTS; | |
1089 | if (sarg & CHR_TIOCM_CAR) | |
1090 | targ |= TIOCM_CAR; | |
1091 | if (sarg & CHR_TIOCM_DSR) | |
1092 | targ |= TIOCM_DSR; | |
1093 | if (sarg & CHR_TIOCM_RI) | |
1094 | targ |= TIOCM_RI; | |
1095 | if (sarg & CHR_TIOCM_DTR) | |
6f97dba0 | 1096 | targ |= TIOCM_DTR; |
b4abdfa4 | 1097 | if (sarg & CHR_TIOCM_RTS) |
6f97dba0 AL |
1098 | targ |= TIOCM_RTS; |
1099 | ioctl(s->fd_in, TIOCMSET, &targ); | |
1100 | } | |
1101 | break; | |
1102 | default: | |
1103 | return -ENOTSUP; | |
1104 | } | |
1105 | return 0; | |
1106 | } | |
1107 | ||
1108 | static CharDriverState *qemu_chr_open_tty(const char *filename) | |
1109 | { | |
1110 | CharDriverState *chr; | |
1111 | int fd; | |
1112 | ||
1113 | TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); | |
1114 | tty_serial_init(fd, 115200, 'N', 8, 1); | |
1115 | chr = qemu_chr_open_fd(fd, fd); | |
1116 | if (!chr) { | |
1117 | close(fd); | |
1118 | return NULL; | |
1119 | } | |
1120 | chr->chr_ioctl = tty_serial_ioctl; | |
1121 | qemu_chr_reset(chr); | |
1122 | return chr; | |
1123 | } | |
1124 | #else /* ! __linux__ && ! __sun__ */ | |
1125 | static CharDriverState *qemu_chr_open_pty(void) | |
1126 | { | |
1127 | return NULL; | |
1128 | } | |
1129 | #endif /* __linux__ || __sun__ */ | |
1130 | ||
1131 | #if defined(__linux__) | |
1132 | typedef struct { | |
1133 | int fd; | |
1134 | int mode; | |
1135 | } ParallelCharDriver; | |
1136 | ||
1137 | static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) | |
1138 | { | |
1139 | if (s->mode != mode) { | |
1140 | int m = mode; | |
1141 | if (ioctl(s->fd, PPSETMODE, &m) < 0) | |
1142 | return 0; | |
1143 | s->mode = mode; | |
1144 | } | |
1145 | return 1; | |
1146 | } | |
1147 | ||
1148 | static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) | |
1149 | { | |
1150 | ParallelCharDriver *drv = chr->opaque; | |
1151 | int fd = drv->fd; | |
1152 | uint8_t b; | |
1153 | ||
1154 | switch(cmd) { | |
1155 | case CHR_IOCTL_PP_READ_DATA: | |
1156 | if (ioctl(fd, PPRDATA, &b) < 0) | |
1157 | return -ENOTSUP; | |
1158 | *(uint8_t *)arg = b; | |
1159 | break; | |
1160 | case CHR_IOCTL_PP_WRITE_DATA: | |
1161 | b = *(uint8_t *)arg; | |
1162 | if (ioctl(fd, PPWDATA, &b) < 0) | |
1163 | return -ENOTSUP; | |
1164 | break; | |
1165 | case CHR_IOCTL_PP_READ_CONTROL: | |
1166 | if (ioctl(fd, PPRCONTROL, &b) < 0) | |
1167 | return -ENOTSUP; | |
1168 | /* Linux gives only the lowest bits, and no way to know data | |
1169 | direction! For better compatibility set the fixed upper | |
1170 | bits. */ | |
1171 | *(uint8_t *)arg = b | 0xc0; | |
1172 | break; | |
1173 | case CHR_IOCTL_PP_WRITE_CONTROL: | |
1174 | b = *(uint8_t *)arg; | |
1175 | if (ioctl(fd, PPWCONTROL, &b) < 0) | |
1176 | return -ENOTSUP; | |
1177 | break; | |
1178 | case CHR_IOCTL_PP_READ_STATUS: | |
1179 | if (ioctl(fd, PPRSTATUS, &b) < 0) | |
1180 | return -ENOTSUP; | |
1181 | *(uint8_t *)arg = b; | |
1182 | break; | |
1183 | case CHR_IOCTL_PP_DATA_DIR: | |
1184 | if (ioctl(fd, PPDATADIR, (int *)arg) < 0) | |
1185 | return -ENOTSUP; | |
1186 | break; | |
1187 | case CHR_IOCTL_PP_EPP_READ_ADDR: | |
1188 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) { | |
1189 | struct ParallelIOArg *parg = arg; | |
1190 | int n = read(fd, parg->buffer, parg->count); | |
1191 | if (n != parg->count) { | |
1192 | return -EIO; | |
1193 | } | |
1194 | } | |
1195 | break; | |
1196 | case CHR_IOCTL_PP_EPP_READ: | |
1197 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) { | |
1198 | struct ParallelIOArg *parg = arg; | |
1199 | int n = read(fd, parg->buffer, parg->count); | |
1200 | if (n != parg->count) { | |
1201 | return -EIO; | |
1202 | } | |
1203 | } | |
1204 | break; | |
1205 | case CHR_IOCTL_PP_EPP_WRITE_ADDR: | |
1206 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) { | |
1207 | struct ParallelIOArg *parg = arg; | |
1208 | int n = write(fd, parg->buffer, parg->count); | |
1209 | if (n != parg->count) { | |
1210 | return -EIO; | |
1211 | } | |
1212 | } | |
1213 | break; | |
1214 | case CHR_IOCTL_PP_EPP_WRITE: | |
1215 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) { | |
1216 | struct ParallelIOArg *parg = arg; | |
1217 | int n = write(fd, parg->buffer, parg->count); | |
1218 | if (n != parg->count) { | |
1219 | return -EIO; | |
1220 | } | |
1221 | } | |
1222 | break; | |
1223 | default: | |
1224 | return -ENOTSUP; | |
1225 | } | |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | static void pp_close(CharDriverState *chr) | |
1230 | { | |
1231 | ParallelCharDriver *drv = chr->opaque; | |
1232 | int fd = drv->fd; | |
1233 | ||
1234 | pp_hw_mode(drv, IEEE1284_MODE_COMPAT); | |
1235 | ioctl(fd, PPRELEASE); | |
1236 | close(fd); | |
1237 | qemu_free(drv); | |
1238 | } | |
1239 | ||
1240 | static CharDriverState *qemu_chr_open_pp(const char *filename) | |
1241 | { | |
1242 | CharDriverState *chr; | |
1243 | ParallelCharDriver *drv; | |
1244 | int fd; | |
1245 | ||
1246 | TFR(fd = open(filename, O_RDWR)); | |
1247 | if (fd < 0) | |
1248 | return NULL; | |
1249 | ||
1250 | if (ioctl(fd, PPCLAIM) < 0) { | |
1251 | close(fd); | |
1252 | return NULL; | |
1253 | } | |
1254 | ||
1255 | drv = qemu_mallocz(sizeof(ParallelCharDriver)); | |
6f97dba0 AL |
1256 | drv->fd = fd; |
1257 | drv->mode = IEEE1284_MODE_COMPAT; | |
1258 | ||
1259 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 AL |
1260 | chr->chr_write = null_chr_write; |
1261 | chr->chr_ioctl = pp_ioctl; | |
1262 | chr->chr_close = pp_close; | |
1263 | chr->opaque = drv; | |
1264 | ||
1265 | qemu_chr_reset(chr); | |
1266 | ||
1267 | return chr; | |
1268 | } | |
1269 | #endif /* __linux__ */ | |
1270 | ||
6972f935 BS |
1271 | #if defined(__FreeBSD__) |
1272 | static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) | |
1273 | { | |
1274 | int fd = (int)chr->opaque; | |
1275 | uint8_t b; | |
1276 | ||
1277 | switch(cmd) { | |
1278 | case CHR_IOCTL_PP_READ_DATA: | |
1279 | if (ioctl(fd, PPIGDATA, &b) < 0) | |
1280 | return -ENOTSUP; | |
1281 | *(uint8_t *)arg = b; | |
1282 | break; | |
1283 | case CHR_IOCTL_PP_WRITE_DATA: | |
1284 | b = *(uint8_t *)arg; | |
1285 | if (ioctl(fd, PPISDATA, &b) < 0) | |
1286 | return -ENOTSUP; | |
1287 | break; | |
1288 | case CHR_IOCTL_PP_READ_CONTROL: | |
1289 | if (ioctl(fd, PPIGCTRL, &b) < 0) | |
1290 | return -ENOTSUP; | |
1291 | *(uint8_t *)arg = b; | |
1292 | break; | |
1293 | case CHR_IOCTL_PP_WRITE_CONTROL: | |
1294 | b = *(uint8_t *)arg; | |
1295 | if (ioctl(fd, PPISCTRL, &b) < 0) | |
1296 | return -ENOTSUP; | |
1297 | break; | |
1298 | case CHR_IOCTL_PP_READ_STATUS: | |
1299 | if (ioctl(fd, PPIGSTATUS, &b) < 0) | |
1300 | return -ENOTSUP; | |
1301 | *(uint8_t *)arg = b; | |
1302 | break; | |
1303 | default: | |
1304 | return -ENOTSUP; | |
1305 | } | |
1306 | return 0; | |
1307 | } | |
1308 | ||
1309 | static CharDriverState *qemu_chr_open_pp(const char *filename) | |
1310 | { | |
1311 | CharDriverState *chr; | |
1312 | int fd; | |
1313 | ||
1314 | fd = open(filename, O_RDWR); | |
1315 | if (fd < 0) | |
1316 | return NULL; | |
1317 | ||
1318 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6972f935 BS |
1319 | chr->opaque = (void *)fd; |
1320 | chr->chr_write = null_chr_write; | |
1321 | chr->chr_ioctl = pp_ioctl; | |
1322 | return chr; | |
1323 | } | |
1324 | #endif | |
1325 | ||
6f97dba0 AL |
1326 | #else /* _WIN32 */ |
1327 | ||
1328 | typedef struct { | |
1329 | int max_size; | |
1330 | HANDLE hcom, hrecv, hsend; | |
1331 | OVERLAPPED orecv, osend; | |
1332 | BOOL fpipe; | |
1333 | DWORD len; | |
1334 | } WinCharState; | |
1335 | ||
1336 | #define NSENDBUF 2048 | |
1337 | #define NRECVBUF 2048 | |
1338 | #define MAXCONNECT 1 | |
1339 | #define NTIMEOUT 5000 | |
1340 | ||
1341 | static int win_chr_poll(void *opaque); | |
1342 | static int win_chr_pipe_poll(void *opaque); | |
1343 | ||
1344 | static void win_chr_close(CharDriverState *chr) | |
1345 | { | |
1346 | WinCharState *s = chr->opaque; | |
1347 | ||
1348 | if (s->hsend) { | |
1349 | CloseHandle(s->hsend); | |
1350 | s->hsend = NULL; | |
1351 | } | |
1352 | if (s->hrecv) { | |
1353 | CloseHandle(s->hrecv); | |
1354 | s->hrecv = NULL; | |
1355 | } | |
1356 | if (s->hcom) { | |
1357 | CloseHandle(s->hcom); | |
1358 | s->hcom = NULL; | |
1359 | } | |
1360 | if (s->fpipe) | |
1361 | qemu_del_polling_cb(win_chr_pipe_poll, chr); | |
1362 | else | |
1363 | qemu_del_polling_cb(win_chr_poll, chr); | |
1364 | } | |
1365 | ||
1366 | static int win_chr_init(CharDriverState *chr, const char *filename) | |
1367 | { | |
1368 | WinCharState *s = chr->opaque; | |
1369 | COMMCONFIG comcfg; | |
1370 | COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; | |
1371 | COMSTAT comstat; | |
1372 | DWORD size; | |
1373 | DWORD err; | |
1374 | ||
1375 | s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1376 | if (!s->hsend) { | |
1377 | fprintf(stderr, "Failed CreateEvent\n"); | |
1378 | goto fail; | |
1379 | } | |
1380 | s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1381 | if (!s->hrecv) { | |
1382 | fprintf(stderr, "Failed CreateEvent\n"); | |
1383 | goto fail; | |
1384 | } | |
1385 | ||
1386 | s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, | |
1387 | OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0); | |
1388 | if (s->hcom == INVALID_HANDLE_VALUE) { | |
1389 | fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError()); | |
1390 | s->hcom = NULL; | |
1391 | goto fail; | |
1392 | } | |
1393 | ||
1394 | if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) { | |
1395 | fprintf(stderr, "Failed SetupComm\n"); | |
1396 | goto fail; | |
1397 | } | |
1398 | ||
1399 | ZeroMemory(&comcfg, sizeof(COMMCONFIG)); | |
1400 | size = sizeof(COMMCONFIG); | |
1401 | GetDefaultCommConfig(filename, &comcfg, &size); | |
1402 | comcfg.dcb.DCBlength = sizeof(DCB); | |
1403 | CommConfigDialog(filename, NULL, &comcfg); | |
1404 | ||
1405 | if (!SetCommState(s->hcom, &comcfg.dcb)) { | |
1406 | fprintf(stderr, "Failed SetCommState\n"); | |
1407 | goto fail; | |
1408 | } | |
1409 | ||
1410 | if (!SetCommMask(s->hcom, EV_ERR)) { | |
1411 | fprintf(stderr, "Failed SetCommMask\n"); | |
1412 | goto fail; | |
1413 | } | |
1414 | ||
1415 | cto.ReadIntervalTimeout = MAXDWORD; | |
1416 | if (!SetCommTimeouts(s->hcom, &cto)) { | |
1417 | fprintf(stderr, "Failed SetCommTimeouts\n"); | |
1418 | goto fail; | |
1419 | } | |
1420 | ||
1421 | if (!ClearCommError(s->hcom, &err, &comstat)) { | |
1422 | fprintf(stderr, "Failed ClearCommError\n"); | |
1423 | goto fail; | |
1424 | } | |
1425 | qemu_add_polling_cb(win_chr_poll, chr); | |
1426 | return 0; | |
1427 | ||
1428 | fail: | |
1429 | win_chr_close(chr); | |
1430 | return -1; | |
1431 | } | |
1432 | ||
1433 | static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) | |
1434 | { | |
1435 | WinCharState *s = chr->opaque; | |
1436 | DWORD len, ret, size, err; | |
1437 | ||
1438 | len = len1; | |
1439 | ZeroMemory(&s->osend, sizeof(s->osend)); | |
1440 | s->osend.hEvent = s->hsend; | |
1441 | while (len > 0) { | |
1442 | if (s->hsend) | |
1443 | ret = WriteFile(s->hcom, buf, len, &size, &s->osend); | |
1444 | else | |
1445 | ret = WriteFile(s->hcom, buf, len, &size, NULL); | |
1446 | if (!ret) { | |
1447 | err = GetLastError(); | |
1448 | if (err == ERROR_IO_PENDING) { | |
1449 | ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); | |
1450 | if (ret) { | |
1451 | buf += size; | |
1452 | len -= size; | |
1453 | } else { | |
1454 | break; | |
1455 | } | |
1456 | } else { | |
1457 | break; | |
1458 | } | |
1459 | } else { | |
1460 | buf += size; | |
1461 | len -= size; | |
1462 | } | |
1463 | } | |
1464 | return len1 - len; | |
1465 | } | |
1466 | ||
1467 | static int win_chr_read_poll(CharDriverState *chr) | |
1468 | { | |
1469 | WinCharState *s = chr->opaque; | |
1470 | ||
1471 | s->max_size = qemu_chr_can_read(chr); | |
1472 | return s->max_size; | |
1473 | } | |
1474 | ||
1475 | static void win_chr_readfile(CharDriverState *chr) | |
1476 | { | |
1477 | WinCharState *s = chr->opaque; | |
1478 | int ret, err; | |
1479 | uint8_t buf[1024]; | |
1480 | DWORD size; | |
1481 | ||
1482 | ZeroMemory(&s->orecv, sizeof(s->orecv)); | |
1483 | s->orecv.hEvent = s->hrecv; | |
1484 | ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); | |
1485 | if (!ret) { | |
1486 | err = GetLastError(); | |
1487 | if (err == ERROR_IO_PENDING) { | |
1488 | ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | if (size > 0) { | |
1493 | qemu_chr_read(chr, buf, size); | |
1494 | } | |
1495 | } | |
1496 | ||
1497 | static void win_chr_read(CharDriverState *chr) | |
1498 | { | |
1499 | WinCharState *s = chr->opaque; | |
1500 | ||
1501 | if (s->len > s->max_size) | |
1502 | s->len = s->max_size; | |
1503 | if (s->len == 0) | |
1504 | return; | |
1505 | ||
1506 | win_chr_readfile(chr); | |
1507 | } | |
1508 | ||
1509 | static int win_chr_poll(void *opaque) | |
1510 | { | |
1511 | CharDriverState *chr = opaque; | |
1512 | WinCharState *s = chr->opaque; | |
1513 | COMSTAT status; | |
1514 | DWORD comerr; | |
1515 | ||
1516 | ClearCommError(s->hcom, &comerr, &status); | |
1517 | if (status.cbInQue > 0) { | |
1518 | s->len = status.cbInQue; | |
1519 | win_chr_read_poll(chr); | |
1520 | win_chr_read(chr); | |
1521 | return 1; | |
1522 | } | |
1523 | return 0; | |
1524 | } | |
1525 | ||
1526 | static CharDriverState *qemu_chr_open_win(const char *filename) | |
1527 | { | |
1528 | CharDriverState *chr; | |
1529 | WinCharState *s; | |
1530 | ||
1531 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 | 1532 | s = qemu_mallocz(sizeof(WinCharState)); |
6f97dba0 AL |
1533 | chr->opaque = s; |
1534 | chr->chr_write = win_chr_write; | |
1535 | chr->chr_close = win_chr_close; | |
1536 | ||
1537 | if (win_chr_init(chr, filename) < 0) { | |
1538 | free(s); | |
1539 | free(chr); | |
1540 | return NULL; | |
1541 | } | |
1542 | qemu_chr_reset(chr); | |
1543 | return chr; | |
1544 | } | |
1545 | ||
1546 | static int win_chr_pipe_poll(void *opaque) | |
1547 | { | |
1548 | CharDriverState *chr = opaque; | |
1549 | WinCharState *s = chr->opaque; | |
1550 | DWORD size; | |
1551 | ||
1552 | PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); | |
1553 | if (size > 0) { | |
1554 | s->len = size; | |
1555 | win_chr_read_poll(chr); | |
1556 | win_chr_read(chr); | |
1557 | return 1; | |
1558 | } | |
1559 | return 0; | |
1560 | } | |
1561 | ||
1562 | static int win_chr_pipe_init(CharDriverState *chr, const char *filename) | |
1563 | { | |
1564 | WinCharState *s = chr->opaque; | |
1565 | OVERLAPPED ov; | |
1566 | int ret; | |
1567 | DWORD size; | |
1568 | char openname[256]; | |
1569 | ||
1570 | s->fpipe = TRUE; | |
1571 | ||
1572 | s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1573 | if (!s->hsend) { | |
1574 | fprintf(stderr, "Failed CreateEvent\n"); | |
1575 | goto fail; | |
1576 | } | |
1577 | s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1578 | if (!s->hrecv) { | |
1579 | fprintf(stderr, "Failed CreateEvent\n"); | |
1580 | goto fail; | |
1581 | } | |
1582 | ||
1583 | snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); | |
1584 | s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, | |
1585 | PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | | |
1586 | PIPE_WAIT, | |
1587 | MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL); | |
1588 | if (s->hcom == INVALID_HANDLE_VALUE) { | |
1589 | fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError()); | |
1590 | s->hcom = NULL; | |
1591 | goto fail; | |
1592 | } | |
1593 | ||
1594 | ZeroMemory(&ov, sizeof(ov)); | |
1595 | ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); | |
1596 | ret = ConnectNamedPipe(s->hcom, &ov); | |
1597 | if (ret) { | |
1598 | fprintf(stderr, "Failed ConnectNamedPipe\n"); | |
1599 | goto fail; | |
1600 | } | |
1601 | ||
1602 | ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); | |
1603 | if (!ret) { | |
1604 | fprintf(stderr, "Failed GetOverlappedResult\n"); | |
1605 | if (ov.hEvent) { | |
1606 | CloseHandle(ov.hEvent); | |
1607 | ov.hEvent = NULL; | |
1608 | } | |
1609 | goto fail; | |
1610 | } | |
1611 | ||
1612 | if (ov.hEvent) { | |
1613 | CloseHandle(ov.hEvent); | |
1614 | ov.hEvent = NULL; | |
1615 | } | |
1616 | qemu_add_polling_cb(win_chr_pipe_poll, chr); | |
1617 | return 0; | |
1618 | ||
1619 | fail: | |
1620 | win_chr_close(chr); | |
1621 | return -1; | |
1622 | } | |
1623 | ||
1624 | ||
1625 | static CharDriverState *qemu_chr_open_win_pipe(const char *filename) | |
1626 | { | |
1627 | CharDriverState *chr; | |
1628 | WinCharState *s; | |
1629 | ||
1630 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 | 1631 | s = qemu_mallocz(sizeof(WinCharState)); |
6f97dba0 AL |
1632 | chr->opaque = s; |
1633 | chr->chr_write = win_chr_write; | |
1634 | chr->chr_close = win_chr_close; | |
1635 | ||
1636 | if (win_chr_pipe_init(chr, filename) < 0) { | |
1637 | free(s); | |
1638 | free(chr); | |
1639 | return NULL; | |
1640 | } | |
1641 | qemu_chr_reset(chr); | |
1642 | return chr; | |
1643 | } | |
1644 | ||
1645 | static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out) | |
1646 | { | |
1647 | CharDriverState *chr; | |
1648 | WinCharState *s; | |
1649 | ||
1650 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 | 1651 | s = qemu_mallocz(sizeof(WinCharState)); |
6f97dba0 AL |
1652 | s->hcom = fd_out; |
1653 | chr->opaque = s; | |
1654 | chr->chr_write = win_chr_write; | |
1655 | qemu_chr_reset(chr); | |
1656 | return chr; | |
1657 | } | |
1658 | ||
1659 | static CharDriverState *qemu_chr_open_win_con(const char *filename) | |
1660 | { | |
1661 | return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE)); | |
1662 | } | |
1663 | ||
1664 | static CharDriverState *qemu_chr_open_win_file_out(const char *file_out) | |
1665 | { | |
1666 | HANDLE fd_out; | |
1667 | ||
1668 | fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL, | |
1669 | OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); | |
1670 | if (fd_out == INVALID_HANDLE_VALUE) | |
1671 | return NULL; | |
1672 | ||
1673 | return qemu_chr_open_win_file(fd_out); | |
1674 | } | |
1675 | #endif /* !_WIN32 */ | |
1676 | ||
1677 | /***********************************************************/ | |
1678 | /* UDP Net console */ | |
1679 | ||
1680 | typedef struct { | |
1681 | int fd; | |
1682 | struct sockaddr_in daddr; | |
1683 | uint8_t buf[1024]; | |
1684 | int bufcnt; | |
1685 | int bufptr; | |
1686 | int max_size; | |
1687 | } NetCharDriver; | |
1688 | ||
1689 | static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
1690 | { | |
1691 | NetCharDriver *s = chr->opaque; | |
1692 | ||
1693 | return sendto(s->fd, buf, len, 0, | |
1694 | (struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in)); | |
1695 | } | |
1696 | ||
1697 | static int udp_chr_read_poll(void *opaque) | |
1698 | { | |
1699 | CharDriverState *chr = opaque; | |
1700 | NetCharDriver *s = chr->opaque; | |
1701 | ||
1702 | s->max_size = qemu_chr_can_read(chr); | |
1703 | ||
1704 | /* If there were any stray characters in the queue process them | |
1705 | * first | |
1706 | */ | |
1707 | while (s->max_size > 0 && s->bufptr < s->bufcnt) { | |
1708 | qemu_chr_read(chr, &s->buf[s->bufptr], 1); | |
1709 | s->bufptr++; | |
1710 | s->max_size = qemu_chr_can_read(chr); | |
1711 | } | |
1712 | return s->max_size; | |
1713 | } | |
1714 | ||
1715 | static void udp_chr_read(void *opaque) | |
1716 | { | |
1717 | CharDriverState *chr = opaque; | |
1718 | NetCharDriver *s = chr->opaque; | |
1719 | ||
1720 | if (s->max_size == 0) | |
1721 | return; | |
1722 | s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0); | |
1723 | s->bufptr = s->bufcnt; | |
1724 | if (s->bufcnt <= 0) | |
1725 | return; | |
1726 | ||
1727 | s->bufptr = 0; | |
1728 | while (s->max_size > 0 && s->bufptr < s->bufcnt) { | |
1729 | qemu_chr_read(chr, &s->buf[s->bufptr], 1); | |
1730 | s->bufptr++; | |
1731 | s->max_size = qemu_chr_can_read(chr); | |
1732 | } | |
1733 | } | |
1734 | ||
1735 | static void udp_chr_update_read_handler(CharDriverState *chr) | |
1736 | { | |
1737 | NetCharDriver *s = chr->opaque; | |
1738 | ||
1739 | if (s->fd >= 0) { | |
1740 | qemu_set_fd_handler2(s->fd, udp_chr_read_poll, | |
1741 | udp_chr_read, NULL, chr); | |
1742 | } | |
1743 | } | |
1744 | ||
1745 | static CharDriverState *qemu_chr_open_udp(const char *def) | |
1746 | { | |
1747 | CharDriverState *chr = NULL; | |
1748 | NetCharDriver *s = NULL; | |
1749 | int fd = -1; | |
1750 | struct sockaddr_in saddr; | |
1751 | ||
1752 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 | 1753 | s = qemu_mallocz(sizeof(NetCharDriver)); |
6f97dba0 AL |
1754 | |
1755 | fd = socket(PF_INET, SOCK_DGRAM, 0); | |
1756 | if (fd < 0) { | |
1757 | perror("socket(PF_INET, SOCK_DGRAM)"); | |
1758 | goto return_err; | |
1759 | } | |
1760 | ||
1761 | if (parse_host_src_port(&s->daddr, &saddr, def) < 0) { | |
1762 | printf("Could not parse: %s\n", def); | |
1763 | goto return_err; | |
1764 | } | |
1765 | ||
1766 | if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) | |
1767 | { | |
1768 | perror("bind"); | |
1769 | goto return_err; | |
1770 | } | |
1771 | ||
1772 | s->fd = fd; | |
1773 | s->bufcnt = 0; | |
1774 | s->bufptr = 0; | |
1775 | chr->opaque = s; | |
1776 | chr->chr_write = udp_chr_write; | |
1777 | chr->chr_update_read_handler = udp_chr_update_read_handler; | |
1778 | return chr; | |
1779 | ||
1780 | return_err: | |
1781 | if (chr) | |
1782 | free(chr); | |
1783 | if (s) | |
1784 | free(s); | |
1785 | if (fd >= 0) | |
1786 | closesocket(fd); | |
1787 | return NULL; | |
1788 | } | |
1789 | ||
1790 | /***********************************************************/ | |
1791 | /* TCP Net console */ | |
1792 | ||
1793 | typedef struct { | |
1794 | int fd, listen_fd; | |
1795 | int connected; | |
1796 | int max_size; | |
1797 | int do_telnetopt; | |
1798 | int do_nodelay; | |
1799 | int is_unix; | |
1800 | } TCPCharDriver; | |
1801 | ||
1802 | static void tcp_chr_accept(void *opaque); | |
1803 | ||
1804 | static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
1805 | { | |
1806 | TCPCharDriver *s = chr->opaque; | |
1807 | if (s->connected) { | |
1808 | return send_all(s->fd, buf, len); | |
1809 | } else { | |
1810 | /* XXX: indicate an error ? */ | |
1811 | return len; | |
1812 | } | |
1813 | } | |
1814 | ||
1815 | static int tcp_chr_read_poll(void *opaque) | |
1816 | { | |
1817 | CharDriverState *chr = opaque; | |
1818 | TCPCharDriver *s = chr->opaque; | |
1819 | if (!s->connected) | |
1820 | return 0; | |
1821 | s->max_size = qemu_chr_can_read(chr); | |
1822 | return s->max_size; | |
1823 | } | |
1824 | ||
1825 | #define IAC 255 | |
1826 | #define IAC_BREAK 243 | |
1827 | static void tcp_chr_process_IAC_bytes(CharDriverState *chr, | |
1828 | TCPCharDriver *s, | |
1829 | uint8_t *buf, int *size) | |
1830 | { | |
1831 | /* Handle any telnet client's basic IAC options to satisfy char by | |
1832 | * char mode with no echo. All IAC options will be removed from | |
1833 | * the buf and the do_telnetopt variable will be used to track the | |
1834 | * state of the width of the IAC information. | |
1835 | * | |
1836 | * IAC commands come in sets of 3 bytes with the exception of the | |
1837 | * "IAC BREAK" command and the double IAC. | |
1838 | */ | |
1839 | ||
1840 | int i; | |
1841 | int j = 0; | |
1842 | ||
1843 | for (i = 0; i < *size; i++) { | |
1844 | if (s->do_telnetopt > 1) { | |
1845 | if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { | |
1846 | /* Double IAC means send an IAC */ | |
1847 | if (j != i) | |
1848 | buf[j] = buf[i]; | |
1849 | j++; | |
1850 | s->do_telnetopt = 1; | |
1851 | } else { | |
1852 | if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { | |
1853 | /* Handle IAC break commands by sending a serial break */ | |
1854 | qemu_chr_event(chr, CHR_EVENT_BREAK); | |
1855 | s->do_telnetopt++; | |
1856 | } | |
1857 | s->do_telnetopt++; | |
1858 | } | |
1859 | if (s->do_telnetopt >= 4) { | |
1860 | s->do_telnetopt = 1; | |
1861 | } | |
1862 | } else { | |
1863 | if ((unsigned char)buf[i] == IAC) { | |
1864 | s->do_telnetopt = 2; | |
1865 | } else { | |
1866 | if (j != i) | |
1867 | buf[j] = buf[i]; | |
1868 | j++; | |
1869 | } | |
1870 | } | |
1871 | } | |
1872 | *size = j; | |
1873 | } | |
1874 | ||
1875 | static void tcp_chr_read(void *opaque) | |
1876 | { | |
1877 | CharDriverState *chr = opaque; | |
1878 | TCPCharDriver *s = chr->opaque; | |
1879 | uint8_t buf[1024]; | |
1880 | int len, size; | |
1881 | ||
1882 | if (!s->connected || s->max_size <= 0) | |
1883 | return; | |
1884 | len = sizeof(buf); | |
1885 | if (len > s->max_size) | |
1886 | len = s->max_size; | |
1887 | size = recv(s->fd, buf, len, 0); | |
1888 | if (size == 0) { | |
1889 | /* connection closed */ | |
1890 | s->connected = 0; | |
1891 | if (s->listen_fd >= 0) { | |
1892 | qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr); | |
1893 | } | |
1894 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); | |
1895 | closesocket(s->fd); | |
1896 | s->fd = -1; | |
1897 | } else if (size > 0) { | |
1898 | if (s->do_telnetopt) | |
1899 | tcp_chr_process_IAC_bytes(chr, s, buf, &size); | |
1900 | if (size > 0) | |
1901 | qemu_chr_read(chr, buf, size); | |
1902 | } | |
1903 | } | |
1904 | ||
1905 | static void tcp_chr_connect(void *opaque) | |
1906 | { | |
1907 | CharDriverState *chr = opaque; | |
1908 | TCPCharDriver *s = chr->opaque; | |
1909 | ||
1910 | s->connected = 1; | |
1911 | qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, | |
1912 | tcp_chr_read, NULL, chr); | |
1913 | qemu_chr_reset(chr); | |
1914 | } | |
1915 | ||
1916 | #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; | |
1917 | static void tcp_chr_telnet_init(int fd) | |
1918 | { | |
1919 | char buf[3]; | |
1920 | /* Send the telnet negotion to put telnet in binary, no echo, single char mode */ | |
1921 | IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ | |
1922 | send(fd, (char *)buf, 3, 0); | |
1923 | IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ | |
1924 | send(fd, (char *)buf, 3, 0); | |
1925 | IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ | |
1926 | send(fd, (char *)buf, 3, 0); | |
1927 | IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ | |
1928 | send(fd, (char *)buf, 3, 0); | |
1929 | } | |
1930 | ||
1931 | static void socket_set_nodelay(int fd) | |
1932 | { | |
1933 | int val = 1; | |
1934 | setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); | |
1935 | } | |
1936 | ||
1937 | static void tcp_chr_accept(void *opaque) | |
1938 | { | |
1939 | CharDriverState *chr = opaque; | |
1940 | TCPCharDriver *s = chr->opaque; | |
1941 | struct sockaddr_in saddr; | |
1942 | #ifndef _WIN32 | |
1943 | struct sockaddr_un uaddr; | |
1944 | #endif | |
1945 | struct sockaddr *addr; | |
1946 | socklen_t len; | |
1947 | int fd; | |
1948 | ||
1949 | for(;;) { | |
1950 | #ifndef _WIN32 | |
1951 | if (s->is_unix) { | |
1952 | len = sizeof(uaddr); | |
1953 | addr = (struct sockaddr *)&uaddr; | |
1954 | } else | |
1955 | #endif | |
1956 | { | |
1957 | len = sizeof(saddr); | |
1958 | addr = (struct sockaddr *)&saddr; | |
1959 | } | |
1960 | fd = accept(s->listen_fd, addr, &len); | |
1961 | if (fd < 0 && errno != EINTR) { | |
1962 | return; | |
1963 | } else if (fd >= 0) { | |
1964 | if (s->do_telnetopt) | |
1965 | tcp_chr_telnet_init(fd); | |
1966 | break; | |
1967 | } | |
1968 | } | |
1969 | socket_set_nonblock(fd); | |
1970 | if (s->do_nodelay) | |
1971 | socket_set_nodelay(fd); | |
1972 | s->fd = fd; | |
1973 | qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); | |
1974 | tcp_chr_connect(chr); | |
1975 | } | |
1976 | ||
1977 | static void tcp_chr_close(CharDriverState *chr) | |
1978 | { | |
1979 | TCPCharDriver *s = chr->opaque; | |
1980 | if (s->fd >= 0) | |
1981 | closesocket(s->fd); | |
1982 | if (s->listen_fd >= 0) | |
1983 | closesocket(s->listen_fd); | |
1984 | qemu_free(s); | |
1985 | } | |
1986 | ||
1987 | static CharDriverState *qemu_chr_open_tcp(const char *host_str, | |
1988 | int is_telnet, | |
1989 | int is_unix) | |
1990 | { | |
1991 | CharDriverState *chr = NULL; | |
1992 | TCPCharDriver *s = NULL; | |
f07b6003 | 1993 | int fd = -1, offset = 0; |
6f97dba0 AL |
1994 | int is_listen = 0; |
1995 | int is_waitconnect = 1; | |
1996 | int do_nodelay = 0; | |
1997 | const char *ptr; | |
6f97dba0 AL |
1998 | |
1999 | ptr = host_str; | |
2000 | while((ptr = strchr(ptr,','))) { | |
2001 | ptr++; | |
2002 | if (!strncmp(ptr,"server",6)) { | |
2003 | is_listen = 1; | |
2004 | } else if (!strncmp(ptr,"nowait",6)) { | |
2005 | is_waitconnect = 0; | |
2006 | } else if (!strncmp(ptr,"nodelay",6)) { | |
2007 | do_nodelay = 1; | |
f07b6003 AL |
2008 | } else if (!strncmp(ptr,"to=",3)) { |
2009 | /* nothing, inet_listen() parses this one */; | |
84694dd2 AJ |
2010 | } else if (!strncmp(ptr,"ipv4",4)) { |
2011 | /* nothing, inet_connect() and inet_listen() parse this one */; | |
2012 | } else if (!strncmp(ptr,"ipv6",4)) { | |
2013 | /* nothing, inet_connect() and inet_listen() parse this one */; | |
6f97dba0 AL |
2014 | } else { |
2015 | printf("Unknown option: %s\n", ptr); | |
2016 | goto fail; | |
2017 | } | |
2018 | } | |
2019 | if (!is_listen) | |
2020 | is_waitconnect = 0; | |
2021 | ||
2022 | chr = qemu_mallocz(sizeof(CharDriverState)); | |
6f97dba0 | 2023 | s = qemu_mallocz(sizeof(TCPCharDriver)); |
6f97dba0 | 2024 | |
f07b6003 AL |
2025 | if (is_listen) { |
2026 | chr->filename = qemu_malloc(256); | |
2027 | if (is_unix) { | |
00766a4e | 2028 | pstrcpy(chr->filename, 256, "unix:"); |
f07b6003 | 2029 | } else if (is_telnet) { |
00766a4e | 2030 | pstrcpy(chr->filename, 256, "telnet:"); |
f07b6003 | 2031 | } else { |
00766a4e | 2032 | pstrcpy(chr->filename, 256, "tcp:"); |
f07b6003 AL |
2033 | } |
2034 | offset = strlen(chr->filename); | |
2035 | } | |
2036 | if (is_unix) { | |
2037 | if (is_listen) { | |
2038 | fd = unix_listen(host_str, chr->filename + offset, 256 - offset); | |
2039 | } else { | |
2040 | fd = unix_connect(host_str); | |
2041 | } | |
2042 | } else { | |
2043 | if (is_listen) { | |
2044 | fd = inet_listen(host_str, chr->filename + offset, 256 - offset, | |
2045 | SOCK_STREAM, 0); | |
2046 | } else { | |
2047 | fd = inet_connect(host_str, SOCK_STREAM); | |
2048 | } | |
2049 | } | |
6f97dba0 AL |
2050 | if (fd < 0) |
2051 | goto fail; | |
2052 | ||
2053 | if (!is_waitconnect) | |
2054 | socket_set_nonblock(fd); | |
2055 | ||
2056 | s->connected = 0; | |
2057 | s->fd = -1; | |
2058 | s->listen_fd = -1; | |
2059 | s->is_unix = is_unix; | |
2060 | s->do_nodelay = do_nodelay && !is_unix; | |
2061 | ||
2062 | chr->opaque = s; | |
2063 | chr->chr_write = tcp_chr_write; | |
2064 | chr->chr_close = tcp_chr_close; | |
2065 | ||
2066 | if (is_listen) { | |
6f97dba0 AL |
2067 | s->listen_fd = fd; |
2068 | qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr); | |
2069 | if (is_telnet) | |
2070 | s->do_telnetopt = 1; | |
2071 | } else { | |
f07b6003 | 2072 | s->connected = 1; |
6f97dba0 AL |
2073 | s->fd = fd; |
2074 | socket_set_nodelay(fd); | |
f07b6003 | 2075 | tcp_chr_connect(chr); |
6f97dba0 AL |
2076 | } |
2077 | ||
2078 | if (is_listen && is_waitconnect) { | |
f07b6003 AL |
2079 | printf("QEMU waiting for connection on: %s\n", |
2080 | chr->filename ? chr->filename : host_str); | |
6f97dba0 AL |
2081 | tcp_chr_accept(chr); |
2082 | socket_set_nonblock(s->listen_fd); | |
2083 | } | |
2084 | ||
2085 | return chr; | |
2086 | fail: | |
2087 | if (fd >= 0) | |
2088 | closesocket(fd); | |
2089 | qemu_free(s); | |
2090 | qemu_free(chr); | |
2091 | return NULL; | |
2092 | } | |
2093 | ||
ceecf1d1 | 2094 | CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
6f97dba0 AL |
2095 | { |
2096 | const char *p; | |
2097 | CharDriverState *chr; | |
2098 | ||
2099 | if (!strcmp(filename, "vc")) { | |
2796dae0 | 2100 | chr = text_console_init(0); |
6f97dba0 AL |
2101 | } else |
2102 | if (strstart(filename, "vc:", &p)) { | |
2796dae0 | 2103 | chr = text_console_init(p); |
6f97dba0 AL |
2104 | } else |
2105 | if (!strcmp(filename, "null")) { | |
2106 | chr = qemu_chr_open_null(); | |
2107 | } else | |
2108 | if (strstart(filename, "tcp:", &p)) { | |
2109 | chr = qemu_chr_open_tcp(p, 0, 0); | |
2110 | } else | |
2111 | if (strstart(filename, "telnet:", &p)) { | |
2112 | chr = qemu_chr_open_tcp(p, 1, 0); | |
2113 | } else | |
2114 | if (strstart(filename, "udp:", &p)) { | |
2115 | chr = qemu_chr_open_udp(p); | |
2116 | } else | |
2117 | if (strstart(filename, "mon:", &p)) { | |
ceecf1d1 | 2118 | chr = qemu_chr_open(label, p, NULL); |
6f97dba0 AL |
2119 | if (chr) { |
2120 | chr = qemu_chr_open_mux(chr); | |
2121 | monitor_init(chr, !nographic); | |
2122 | } else { | |
2123 | printf("Unable to open driver: %s\n", p); | |
2124 | } | |
aa71cf80 AJ |
2125 | } else if (!strcmp(filename, "msmouse")) { |
2126 | chr = qemu_chr_open_msmouse(); | |
6f97dba0 AL |
2127 | } else |
2128 | #ifndef _WIN32 | |
2129 | if (strstart(filename, "unix:", &p)) { | |
2130 | chr = qemu_chr_open_tcp(p, 0, 1); | |
2131 | } else if (strstart(filename, "file:", &p)) { | |
2132 | chr = qemu_chr_open_file_out(p); | |
2133 | } else if (strstart(filename, "pipe:", &p)) { | |
2134 | chr = qemu_chr_open_pipe(p); | |
2135 | } else if (!strcmp(filename, "pty")) { | |
2136 | chr = qemu_chr_open_pty(); | |
2137 | } else if (!strcmp(filename, "stdio")) { | |
2138 | chr = qemu_chr_open_stdio(); | |
2139 | } else | |
2140 | #if defined(__linux__) | |
2141 | if (strstart(filename, "/dev/parport", NULL)) { | |
2142 | chr = qemu_chr_open_pp(filename); | |
2143 | } else | |
6972f935 BS |
2144 | #elif defined(__FreeBSD__) |
2145 | if (strstart(filename, "/dev/ppi", NULL)) { | |
2146 | chr = qemu_chr_open_pp(filename); | |
2147 | } else | |
6f97dba0 AL |
2148 | #endif |
2149 | #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ | |
2150 | || defined(__NetBSD__) || defined(__OpenBSD__) | |
2151 | if (strstart(filename, "/dev/", NULL)) { | |
2152 | chr = qemu_chr_open_tty(filename); | |
2153 | } else | |
2154 | #endif | |
2155 | #else /* !_WIN32 */ | |
2156 | if (strstart(filename, "COM", NULL)) { | |
2157 | chr = qemu_chr_open_win(filename); | |
2158 | } else | |
2159 | if (strstart(filename, "pipe:", &p)) { | |
2160 | chr = qemu_chr_open_win_pipe(p); | |
2161 | } else | |
2162 | if (strstart(filename, "con:", NULL)) { | |
2163 | chr = qemu_chr_open_win_con(filename); | |
2164 | } else | |
2165 | if (strstart(filename, "file:", &p)) { | |
2166 | chr = qemu_chr_open_win_file_out(p); | |
2167 | } else | |
2168 | #endif | |
2169 | #ifdef CONFIG_BRLAPI | |
2170 | if (!strcmp(filename, "braille")) { | |
2171 | chr = chr_baum_init(); | |
2172 | } else | |
2173 | #endif | |
2174 | { | |
2175 | chr = NULL; | |
2176 | } | |
2177 | ||
2178 | if (chr) { | |
2179 | if (!chr->filename) | |
2180 | chr->filename = qemu_strdup(filename); | |
ceecf1d1 | 2181 | chr->init = init; |
6f97dba0 AL |
2182 | chr->label = qemu_strdup(label); |
2183 | TAILQ_INSERT_TAIL(&chardevs, chr, next); | |
2184 | } | |
2185 | return chr; | |
2186 | } | |
2187 | ||
2188 | void qemu_chr_close(CharDriverState *chr) | |
2189 | { | |
2190 | TAILQ_REMOVE(&chardevs, chr, next); | |
2191 | if (chr->chr_close) | |
2192 | chr->chr_close(chr); | |
2193 | qemu_free(chr->filename); | |
2194 | qemu_free(chr->label); | |
2195 | qemu_free(chr); | |
2196 | } | |
2197 | ||
2198 | void qemu_chr_info(void) | |
2199 | { | |
2200 | CharDriverState *chr; | |
2201 | ||
2202 | TAILQ_FOREACH(chr, &chardevs, next) { | |
2203 | term_printf("%s: filename=%s\n", chr->label, chr->filename); | |
2204 | } | |
2205 | } |