root / qemu-char.c @ 4870852c
History | View | Annotate | Download (56.1 kB)
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 HOST_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 |
void qemu_chr_accept_input(CharDriverState *s)
|
172 |
{ |
173 |
if (s->chr_accept_input)
|
174 |
s->chr_accept_input(s); |
175 |
} |
176 |
|
177 |
void qemu_chr_printf(CharDriverState *s, const char *fmt, ...) |
178 |
{ |
179 |
char buf[4096]; |
180 |
va_list ap; |
181 |
va_start(ap, fmt); |
182 |
vsnprintf(buf, sizeof(buf), fmt, ap);
|
183 |
qemu_chr_write(s, (uint8_t *)buf, strlen(buf)); |
184 |
va_end(ap); |
185 |
} |
186 |
|
187 |
void qemu_chr_send_event(CharDriverState *s, int event) |
188 |
{ |
189 |
if (s->chr_send_event)
|
190 |
s->chr_send_event(s, event); |
191 |
} |
192 |
|
193 |
void qemu_chr_add_handlers(CharDriverState *s,
|
194 |
IOCanRWHandler *fd_can_read, |
195 |
IOReadHandler *fd_read, |
196 |
IOEventHandler *fd_event, |
197 |
void *opaque)
|
198 |
{ |
199 |
s->chr_can_read = fd_can_read; |
200 |
s->chr_read = fd_read; |
201 |
s->chr_event = fd_event; |
202 |
s->handler_opaque = opaque; |
203 |
if (s->chr_update_read_handler)
|
204 |
s->chr_update_read_handler(s); |
205 |
} |
206 |
|
207 |
static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
208 |
{ |
209 |
return len;
|
210 |
} |
211 |
|
212 |
static CharDriverState *qemu_chr_open_null(void) |
213 |
{ |
214 |
CharDriverState *chr; |
215 |
|
216 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
217 |
chr->chr_write = null_chr_write; |
218 |
return chr;
|
219 |
} |
220 |
|
221 |
/* MUX driver for serial I/O splitting */
|
222 |
static int term_timestamps; |
223 |
static int64_t term_timestamps_start;
|
224 |
#define MAX_MUX 4 |
225 |
#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ |
226 |
#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) |
227 |
typedef struct { |
228 |
IOCanRWHandler *chr_can_read[MAX_MUX]; |
229 |
IOReadHandler *chr_read[MAX_MUX]; |
230 |
IOEventHandler *chr_event[MAX_MUX]; |
231 |
void *ext_opaque[MAX_MUX];
|
232 |
CharDriverState *drv; |
233 |
int mux_cnt;
|
234 |
int term_got_escape;
|
235 |
int max_size;
|
236 |
/* Intermediate input buffer allows to catch escape sequences even if the
|
237 |
currently active device is not accepting any input - but only until it
|
238 |
is full as well. */
|
239 |
unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE]; |
240 |
int prod[MAX_MUX];
|
241 |
int cons[MAX_MUX];
|
242 |
} MuxDriver; |
243 |
|
244 |
|
245 |
static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
246 |
{ |
247 |
MuxDriver *d = chr->opaque; |
248 |
int ret;
|
249 |
if (!term_timestamps) {
|
250 |
ret = d->drv->chr_write(d->drv, buf, len); |
251 |
} else {
|
252 |
int i;
|
253 |
|
254 |
ret = 0;
|
255 |
for(i = 0; i < len; i++) { |
256 |
ret += d->drv->chr_write(d->drv, buf+i, 1);
|
257 |
if (buf[i] == '\n') { |
258 |
char buf1[64]; |
259 |
int64_t ti; |
260 |
int secs;
|
261 |
|
262 |
ti = qemu_get_clock(rt_clock); |
263 |
if (term_timestamps_start == -1) |
264 |
term_timestamps_start = ti; |
265 |
ti -= term_timestamps_start; |
266 |
secs = ti / 1000;
|
267 |
snprintf(buf1, sizeof(buf1),
|
268 |
"[%02d:%02d:%02d.%03d] ",
|
269 |
secs / 3600,
|
270 |
(secs / 60) % 60, |
271 |
secs % 60,
|
272 |
(int)(ti % 1000)); |
273 |
d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1)); |
274 |
} |
275 |
} |
276 |
} |
277 |
return ret;
|
278 |
} |
279 |
|
280 |
static const char * const mux_help[] = { |
281 |
"% h print this help\n\r",
|
282 |
"% x exit emulator\n\r",
|
283 |
"% s save disk data back to file (if -snapshot)\n\r",
|
284 |
"% t toggle console timestamps\n\r"
|
285 |
"% b send break (magic sysrq)\n\r",
|
286 |
"% c switch between console and monitor\n\r",
|
287 |
"% % sends %\n\r",
|
288 |
NULL
|
289 |
}; |
290 |
|
291 |
int term_escape_char = 0x01; /* ctrl-a is used for escape */ |
292 |
static void mux_print_help(CharDriverState *chr) |
293 |
{ |
294 |
int i, j;
|
295 |
char ebuf[15] = "Escape-Char"; |
296 |
char cbuf[50] = "\n\r"; |
297 |
|
298 |
if (term_escape_char > 0 && term_escape_char < 26) { |
299 |
snprintf(cbuf, sizeof(cbuf), "\n\r"); |
300 |
snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); |
301 |
} else {
|
302 |
snprintf(cbuf, sizeof(cbuf),
|
303 |
"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
|
304 |
term_escape_char); |
305 |
} |
306 |
chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
307 |
for (i = 0; mux_help[i] != NULL; i++) { |
308 |
for (j=0; mux_help[i][j] != '\0'; j++) { |
309 |
if (mux_help[i][j] == '%') |
310 |
chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
311 |
else
|
312 |
chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
|
313 |
} |
314 |
} |
315 |
} |
316 |
|
317 |
static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) |
318 |
{ |
319 |
if (d->chr_event[mux_nr])
|
320 |
d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); |
321 |
} |
322 |
|
323 |
static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
324 |
{ |
325 |
if (d->term_got_escape) {
|
326 |
d->term_got_escape = 0;
|
327 |
if (ch == term_escape_char)
|
328 |
goto send_char;
|
329 |
switch(ch) {
|
330 |
case '?': |
331 |
case 'h': |
332 |
mux_print_help(chr); |
333 |
break;
|
334 |
case 'x': |
335 |
{ |
336 |
const char *term = "QEMU: Terminated\n\r"; |
337 |
chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
338 |
exit(0);
|
339 |
break;
|
340 |
} |
341 |
case 's': |
342 |
{ |
343 |
int i;
|
344 |
for (i = 0; i < nb_drives; i++) { |
345 |
bdrv_commit(drives_table[i].bdrv); |
346 |
} |
347 |
} |
348 |
break;
|
349 |
case 'b': |
350 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
351 |
break;
|
352 |
case 'c': |
353 |
/* Switch to the next registered device */
|
354 |
mux_chr_send_event(d, chr->focus, CHR_EVENT_MUX_OUT); |
355 |
chr->focus++; |
356 |
if (chr->focus >= d->mux_cnt)
|
357 |
chr->focus = 0;
|
358 |
mux_chr_send_event(d, chr->focus, CHR_EVENT_MUX_IN); |
359 |
break;
|
360 |
case 't': |
361 |
term_timestamps = !term_timestamps; |
362 |
term_timestamps_start = -1;
|
363 |
break;
|
364 |
} |
365 |
} else if (ch == term_escape_char) { |
366 |
d->term_got_escape = 1;
|
367 |
} else {
|
368 |
send_char:
|
369 |
return 1; |
370 |
} |
371 |
return 0; |
372 |
} |
373 |
|
374 |
static void mux_chr_accept_input(CharDriverState *chr) |
375 |
{ |
376 |
int m = chr->focus;
|
377 |
MuxDriver *d = chr->opaque; |
378 |
|
379 |
while (d->prod[m] != d->cons[m] &&
|
380 |
d->chr_can_read[m] && |
381 |
d->chr_can_read[m](d->ext_opaque[m])) { |
382 |
d->chr_read[m](d->ext_opaque[m], |
383 |
&d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
|
384 |
} |
385 |
} |
386 |
|
387 |
static int mux_chr_can_read(void *opaque) |
388 |
{ |
389 |
CharDriverState *chr = opaque; |
390 |
MuxDriver *d = chr->opaque; |
391 |
int m = chr->focus;
|
392 |
|
393 |
if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
|
394 |
return 1; |
395 |
if (d->chr_can_read[m])
|
396 |
return d->chr_can_read[m](d->ext_opaque[m]);
|
397 |
return 0; |
398 |
} |
399 |
|
400 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
401 |
{ |
402 |
CharDriverState *chr = opaque; |
403 |
MuxDriver *d = chr->opaque; |
404 |
int m = chr->focus;
|
405 |
int i;
|
406 |
|
407 |
mux_chr_accept_input (opaque); |
408 |
|
409 |
for(i = 0; i < size; i++) |
410 |
if (mux_proc_byte(chr, d, buf[i])) {
|
411 |
if (d->prod[m] == d->cons[m] &&
|
412 |
d->chr_can_read[m] && |
413 |
d->chr_can_read[m](d->ext_opaque[m])) |
414 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
415 |
else
|
416 |
d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
417 |
} |
418 |
} |
419 |
|
420 |
static void mux_chr_event(void *opaque, int event) |
421 |
{ |
422 |
CharDriverState *chr = opaque; |
423 |
MuxDriver *d = chr->opaque; |
424 |
int i;
|
425 |
|
426 |
/* Send the event to all registered listeners */
|
427 |
for (i = 0; i < d->mux_cnt; i++) |
428 |
mux_chr_send_event(d, i, event); |
429 |
} |
430 |
|
431 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
432 |
{ |
433 |
MuxDriver *d = chr->opaque; |
434 |
|
435 |
if (d->mux_cnt >= MAX_MUX) {
|
436 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
437 |
return;
|
438 |
} |
439 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
440 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
441 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
442 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
443 |
/* Fix up the real driver with mux routines */
|
444 |
if (d->mux_cnt == 0) { |
445 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
446 |
mux_chr_event, chr); |
447 |
} |
448 |
chr->focus = d->mux_cnt; |
449 |
d->mux_cnt++; |
450 |
} |
451 |
|
452 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
453 |
{ |
454 |
CharDriverState *chr; |
455 |
MuxDriver *d; |
456 |
|
457 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
458 |
d = qemu_mallocz(sizeof(MuxDriver));
|
459 |
|
460 |
chr->opaque = d; |
461 |
d->drv = drv; |
462 |
chr->focus = -1;
|
463 |
chr->chr_write = mux_chr_write; |
464 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
465 |
chr->chr_accept_input = mux_chr_accept_input; |
466 |
return chr;
|
467 |
} |
468 |
|
469 |
|
470 |
#ifdef _WIN32
|
471 |
int send_all(int fd, const void *buf, int len1) |
472 |
{ |
473 |
int ret, len;
|
474 |
|
475 |
len = len1; |
476 |
while (len > 0) { |
477 |
ret = send(fd, buf, len, 0);
|
478 |
if (ret < 0) { |
479 |
errno = WSAGetLastError(); |
480 |
if (errno != WSAEWOULDBLOCK) {
|
481 |
return -1; |
482 |
} |
483 |
} else if (ret == 0) { |
484 |
break;
|
485 |
} else {
|
486 |
buf += ret; |
487 |
len -= ret; |
488 |
} |
489 |
} |
490 |
return len1 - len;
|
491 |
} |
492 |
|
493 |
#else
|
494 |
|
495 |
static int unix_write(int fd, const uint8_t *buf, int len1) |
496 |
{ |
497 |
int ret, len;
|
498 |
|
499 |
len = len1; |
500 |
while (len > 0) { |
501 |
ret = write(fd, buf, len); |
502 |
if (ret < 0) { |
503 |
if (errno != EINTR && errno != EAGAIN)
|
504 |
return -1; |
505 |
} else if (ret == 0) { |
506 |
break;
|
507 |
} else {
|
508 |
buf += ret; |
509 |
len -= ret; |
510 |
} |
511 |
} |
512 |
return len1 - len;
|
513 |
} |
514 |
|
515 |
int send_all(int fd, const void *buf, int len1) |
516 |
{ |
517 |
return unix_write(fd, buf, len1);
|
518 |
} |
519 |
#endif /* !_WIN32 */ |
520 |
|
521 |
#ifndef _WIN32
|
522 |
|
523 |
typedef struct { |
524 |
int fd_in, fd_out;
|
525 |
int max_size;
|
526 |
} FDCharDriver; |
527 |
|
528 |
#define STDIO_MAX_CLIENTS 1 |
529 |
static int stdio_nb_clients = 0; |
530 |
|
531 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
532 |
{ |
533 |
FDCharDriver *s = chr->opaque; |
534 |
return send_all(s->fd_out, buf, len);
|
535 |
} |
536 |
|
537 |
static int fd_chr_read_poll(void *opaque) |
538 |
{ |
539 |
CharDriverState *chr = opaque; |
540 |
FDCharDriver *s = chr->opaque; |
541 |
|
542 |
s->max_size = qemu_chr_can_read(chr); |
543 |
return s->max_size;
|
544 |
} |
545 |
|
546 |
static void fd_chr_read(void *opaque) |
547 |
{ |
548 |
CharDriverState *chr = opaque; |
549 |
FDCharDriver *s = chr->opaque; |
550 |
int size, len;
|
551 |
uint8_t buf[1024];
|
552 |
|
553 |
len = sizeof(buf);
|
554 |
if (len > s->max_size)
|
555 |
len = s->max_size; |
556 |
if (len == 0) |
557 |
return;
|
558 |
size = read(s->fd_in, buf, len); |
559 |
if (size == 0) { |
560 |
/* FD has been closed. Remove it from the active list. */
|
561 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
562 |
return;
|
563 |
} |
564 |
if (size > 0) { |
565 |
qemu_chr_read(chr, buf, size); |
566 |
} |
567 |
} |
568 |
|
569 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
570 |
{ |
571 |
FDCharDriver *s = chr->opaque; |
572 |
|
573 |
if (s->fd_in >= 0) { |
574 |
if (nographic && s->fd_in == 0) { |
575 |
} else {
|
576 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
577 |
fd_chr_read, NULL, chr);
|
578 |
} |
579 |
} |
580 |
} |
581 |
|
582 |
static void fd_chr_close(struct CharDriverState *chr) |
583 |
{ |
584 |
FDCharDriver *s = chr->opaque; |
585 |
|
586 |
if (s->fd_in >= 0) { |
587 |
if (nographic && s->fd_in == 0) { |
588 |
} else {
|
589 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
590 |
} |
591 |
} |
592 |
|
593 |
qemu_free(s); |
594 |
} |
595 |
|
596 |
/* open a character device to a unix fd */
|
597 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
598 |
{ |
599 |
CharDriverState *chr; |
600 |
FDCharDriver *s; |
601 |
|
602 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
603 |
s = qemu_mallocz(sizeof(FDCharDriver));
|
604 |
s->fd_in = fd_in; |
605 |
s->fd_out = fd_out; |
606 |
chr->opaque = s; |
607 |
chr->chr_write = fd_chr_write; |
608 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
609 |
chr->chr_close = fd_chr_close; |
610 |
|
611 |
qemu_chr_reset(chr); |
612 |
|
613 |
return chr;
|
614 |
} |
615 |
|
616 |
static CharDriverState *qemu_chr_open_file_out(const char *file_out) |
617 |
{ |
618 |
int fd_out;
|
619 |
|
620 |
TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
621 |
if (fd_out < 0) |
622 |
return NULL; |
623 |
return qemu_chr_open_fd(-1, fd_out); |
624 |
} |
625 |
|
626 |
static CharDriverState *qemu_chr_open_pipe(const char *filename) |
627 |
{ |
628 |
int fd_in, fd_out;
|
629 |
char filename_in[256], filename_out[256]; |
630 |
|
631 |
snprintf(filename_in, 256, "%s.in", filename); |
632 |
snprintf(filename_out, 256, "%s.out", filename); |
633 |
TFR(fd_in = open(filename_in, O_RDWR | O_BINARY)); |
634 |
TFR(fd_out = open(filename_out, O_RDWR | O_BINARY)); |
635 |
if (fd_in < 0 || fd_out < 0) { |
636 |
if (fd_in >= 0) |
637 |
close(fd_in); |
638 |
if (fd_out >= 0) |
639 |
close(fd_out); |
640 |
TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); |
641 |
if (fd_in < 0) |
642 |
return NULL; |
643 |
} |
644 |
return qemu_chr_open_fd(fd_in, fd_out);
|
645 |
} |
646 |
|
647 |
|
648 |
/* for STDIO, we handle the case where several clients use it
|
649 |
(nographic mode) */
|
650 |
|
651 |
#define TERM_FIFO_MAX_SIZE 1 |
652 |
|
653 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
654 |
static int term_fifo_size; |
655 |
|
656 |
static int stdio_read_poll(void *opaque) |
657 |
{ |
658 |
CharDriverState *chr = opaque; |
659 |
|
660 |
/* try to flush the queue if needed */
|
661 |
if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { |
662 |
qemu_chr_read(chr, term_fifo, 1);
|
663 |
term_fifo_size = 0;
|
664 |
} |
665 |
/* see if we can absorb more chars */
|
666 |
if (term_fifo_size == 0) |
667 |
return 1; |
668 |
else
|
669 |
return 0; |
670 |
} |
671 |
|
672 |
static void stdio_read(void *opaque) |
673 |
{ |
674 |
int size;
|
675 |
uint8_t buf[1];
|
676 |
CharDriverState *chr = opaque; |
677 |
|
678 |
size = read(0, buf, 1); |
679 |
if (size == 0) { |
680 |
/* stdin has been closed. Remove it from the active list. */
|
681 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
682 |
return;
|
683 |
} |
684 |
if (size > 0) { |
685 |
if (qemu_chr_can_read(chr) > 0) { |
686 |
qemu_chr_read(chr, buf, 1);
|
687 |
} else if (term_fifo_size == 0) { |
688 |
term_fifo[term_fifo_size++] = buf[0];
|
689 |
} |
690 |
} |
691 |
} |
692 |
|
693 |
/* init terminal so that we can grab keys */
|
694 |
static struct termios oldtty; |
695 |
static int old_fd0_flags; |
696 |
static int term_atexit_done; |
697 |
|
698 |
static void term_exit(void) |
699 |
{ |
700 |
tcsetattr (0, TCSANOW, &oldtty);
|
701 |
fcntl(0, F_SETFL, old_fd0_flags);
|
702 |
} |
703 |
|
704 |
static void term_init(void) |
705 |
{ |
706 |
struct termios tty;
|
707 |
|
708 |
tcgetattr (0, &tty);
|
709 |
oldtty = tty; |
710 |
old_fd0_flags = fcntl(0, F_GETFL);
|
711 |
|
712 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
713 |
|INLCR|IGNCR|ICRNL|IXON); |
714 |
tty.c_oflag |= OPOST; |
715 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
716 |
/* if graphical mode, we allow Ctrl-C handling */
|
717 |
if (nographic)
|
718 |
tty.c_lflag &= ~ISIG; |
719 |
tty.c_cflag &= ~(CSIZE|PARENB); |
720 |
tty.c_cflag |= CS8; |
721 |
tty.c_cc[VMIN] = 1;
|
722 |
tty.c_cc[VTIME] = 0;
|
723 |
|
724 |
tcsetattr (0, TCSANOW, &tty);
|
725 |
|
726 |
if (!term_atexit_done++)
|
727 |
atexit(term_exit); |
728 |
|
729 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
730 |
} |
731 |
|
732 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
733 |
{ |
734 |
term_exit(); |
735 |
stdio_nb_clients--; |
736 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
737 |
fd_chr_close(chr); |
738 |
} |
739 |
|
740 |
static CharDriverState *qemu_chr_open_stdio(void) |
741 |
{ |
742 |
CharDriverState *chr; |
743 |
|
744 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
|
745 |
return NULL; |
746 |
chr = qemu_chr_open_fd(0, 1); |
747 |
chr->chr_close = qemu_chr_close_stdio; |
748 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
749 |
stdio_nb_clients++; |
750 |
term_init(); |
751 |
|
752 |
return chr;
|
753 |
} |
754 |
|
755 |
#ifdef __sun__
|
756 |
/* Once Solaris has openpty(), this is going to be removed. */
|
757 |
static int openpty(int *amaster, int *aslave, char *name, |
758 |
struct termios *termp, struct winsize *winp) |
759 |
{ |
760 |
const char *slave; |
761 |
int mfd = -1, sfd = -1; |
762 |
|
763 |
*amaster = *aslave = -1;
|
764 |
|
765 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
766 |
if (mfd < 0) |
767 |
goto err;
|
768 |
|
769 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
770 |
goto err;
|
771 |
|
772 |
if ((slave = ptsname(mfd)) == NULL) |
773 |
goto err;
|
774 |
|
775 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
776 |
goto err;
|
777 |
|
778 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
779 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
780 |
goto err;
|
781 |
|
782 |
if (amaster)
|
783 |
*amaster = mfd; |
784 |
if (aslave)
|
785 |
*aslave = sfd; |
786 |
if (winp)
|
787 |
ioctl(sfd, TIOCSWINSZ, winp); |
788 |
|
789 |
return 0; |
790 |
|
791 |
err:
|
792 |
if (sfd != -1) |
793 |
close(sfd); |
794 |
close(mfd); |
795 |
return -1; |
796 |
} |
797 |
|
798 |
static void cfmakeraw (struct termios *termios_p) |
799 |
{ |
800 |
termios_p->c_iflag &= |
801 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
802 |
termios_p->c_oflag &= ~OPOST; |
803 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
804 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
805 |
termios_p->c_cflag |= CS8; |
806 |
|
807 |
termios_p->c_cc[VMIN] = 0;
|
808 |
termios_p->c_cc[VTIME] = 0;
|
809 |
} |
810 |
#endif
|
811 |
|
812 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
813 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) |
814 |
|
815 |
typedef struct { |
816 |
int fd;
|
817 |
int connected;
|
818 |
int polling;
|
819 |
int read_bytes;
|
820 |
QEMUTimer *timer; |
821 |
} PtyCharDriver; |
822 |
|
823 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
824 |
static void pty_chr_state(CharDriverState *chr, int connected); |
825 |
|
826 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
827 |
{ |
828 |
PtyCharDriver *s = chr->opaque; |
829 |
|
830 |
if (!s->connected) {
|
831 |
/* guest sends data, check for (re-)connect */
|
832 |
pty_chr_update_read_handler(chr); |
833 |
return 0; |
834 |
} |
835 |
return send_all(s->fd, buf, len);
|
836 |
} |
837 |
|
838 |
static int pty_chr_read_poll(void *opaque) |
839 |
{ |
840 |
CharDriverState *chr = opaque; |
841 |
PtyCharDriver *s = chr->opaque; |
842 |
|
843 |
s->read_bytes = qemu_chr_can_read(chr); |
844 |
return s->read_bytes;
|
845 |
} |
846 |
|
847 |
static void pty_chr_read(void *opaque) |
848 |
{ |
849 |
CharDriverState *chr = opaque; |
850 |
PtyCharDriver *s = chr->opaque; |
851 |
int size, len;
|
852 |
uint8_t buf[1024];
|
853 |
|
854 |
len = sizeof(buf);
|
855 |
if (len > s->read_bytes)
|
856 |
len = s->read_bytes; |
857 |
if (len == 0) |
858 |
return;
|
859 |
size = read(s->fd, buf, len); |
860 |
if ((size == -1 && errno == EIO) || |
861 |
(size == 0)) {
|
862 |
pty_chr_state(chr, 0);
|
863 |
return;
|
864 |
} |
865 |
if (size > 0) { |
866 |
pty_chr_state(chr, 1);
|
867 |
qemu_chr_read(chr, buf, size); |
868 |
} |
869 |
} |
870 |
|
871 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
872 |
{ |
873 |
PtyCharDriver *s = chr->opaque; |
874 |
|
875 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
876 |
pty_chr_read, NULL, chr);
|
877 |
s->polling = 1;
|
878 |
/*
|
879 |
* Short timeout here: just need wait long enougth that qemu makes
|
880 |
* it through the poll loop once. When reconnected we want a
|
881 |
* short timeout so we notice it almost instantly. Otherwise
|
882 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
883 |
* timeout to the normal (much longer) poll interval before the
|
884 |
* timer triggers.
|
885 |
*/
|
886 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
|
887 |
} |
888 |
|
889 |
static void pty_chr_state(CharDriverState *chr, int connected) |
890 |
{ |
891 |
PtyCharDriver *s = chr->opaque; |
892 |
|
893 |
if (!connected) {
|
894 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
895 |
s->connected = 0;
|
896 |
s->polling = 0;
|
897 |
/* (re-)connect poll interval for idle guests: once per second.
|
898 |
* We check more frequently in case the guests sends data to
|
899 |
* the virtual device linked to our pty. */
|
900 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
|
901 |
} else {
|
902 |
if (!s->connected)
|
903 |
qemu_chr_reset(chr); |
904 |
s->connected = 1;
|
905 |
} |
906 |
} |
907 |
|
908 |
static void pty_chr_timer(void *opaque) |
909 |
{ |
910 |
struct CharDriverState *chr = opaque;
|
911 |
PtyCharDriver *s = chr->opaque; |
912 |
|
913 |
if (s->connected)
|
914 |
return;
|
915 |
if (s->polling) {
|
916 |
/* If we arrive here without polling being cleared due
|
917 |
* read returning -EIO, then we are (re-)connected */
|
918 |
pty_chr_state(chr, 1);
|
919 |
return;
|
920 |
} |
921 |
|
922 |
/* Next poll ... */
|
923 |
pty_chr_update_read_handler(chr); |
924 |
} |
925 |
|
926 |
static void pty_chr_close(struct CharDriverState *chr) |
927 |
{ |
928 |
PtyCharDriver *s = chr->opaque; |
929 |
|
930 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
931 |
close(s->fd); |
932 |
qemu_del_timer(s->timer); |
933 |
qemu_free_timer(s->timer); |
934 |
qemu_free(s); |
935 |
} |
936 |
|
937 |
static CharDriverState *qemu_chr_open_pty(void) |
938 |
{ |
939 |
CharDriverState *chr; |
940 |
PtyCharDriver *s; |
941 |
struct termios tty;
|
942 |
int slave_fd, len;
|
943 |
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
944 |
char pty_name[PATH_MAX];
|
945 |
#define q_ptsname(x) pty_name
|
946 |
#else
|
947 |
char *pty_name = NULL; |
948 |
#define q_ptsname(x) ptsname(x)
|
949 |
#endif
|
950 |
|
951 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
952 |
s = qemu_mallocz(sizeof(PtyCharDriver));
|
953 |
|
954 |
if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
955 |
return NULL; |
956 |
} |
957 |
|
958 |
/* Set raw attributes on the pty. */
|
959 |
tcgetattr(slave_fd, &tty); |
960 |
cfmakeraw(&tty); |
961 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
962 |
close(slave_fd); |
963 |
|
964 |
len = strlen(q_ptsname(s->fd)) + 5;
|
965 |
chr->filename = qemu_malloc(len); |
966 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
|
967 |
fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
|
968 |
|
969 |
chr->opaque = s; |
970 |
chr->chr_write = pty_chr_write; |
971 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
972 |
chr->chr_close = pty_chr_close; |
973 |
|
974 |
s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr); |
975 |
|
976 |
return chr;
|
977 |
} |
978 |
|
979 |
static void tty_serial_init(int fd, int speed, |
980 |
int parity, int data_bits, int stop_bits) |
981 |
{ |
982 |
struct termios tty;
|
983 |
speed_t spd; |
984 |
|
985 |
#if 0
|
986 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
987 |
speed, parity, data_bits, stop_bits);
|
988 |
#endif
|
989 |
tcgetattr (fd, &tty); |
990 |
|
991 |
#define MARGIN 1.1 |
992 |
if (speed <= 50 * MARGIN) |
993 |
spd = B50; |
994 |
else if (speed <= 75 * MARGIN) |
995 |
spd = B75; |
996 |
else if (speed <= 300 * MARGIN) |
997 |
spd = B300; |
998 |
else if (speed <= 600 * MARGIN) |
999 |
spd = B600; |
1000 |
else if (speed <= 1200 * MARGIN) |
1001 |
spd = B1200; |
1002 |
else if (speed <= 2400 * MARGIN) |
1003 |
spd = B2400; |
1004 |
else if (speed <= 4800 * MARGIN) |
1005 |
spd = B4800; |
1006 |
else if (speed <= 9600 * MARGIN) |
1007 |
spd = B9600; |
1008 |
else if (speed <= 19200 * MARGIN) |
1009 |
spd = B19200; |
1010 |
else if (speed <= 38400 * MARGIN) |
1011 |
spd = B38400; |
1012 |
else if (speed <= 57600 * MARGIN) |
1013 |
spd = B57600; |
1014 |
else if (speed <= 115200 * MARGIN) |
1015 |
spd = B115200; |
1016 |
else
|
1017 |
spd = B115200; |
1018 |
|
1019 |
cfsetispeed(&tty, spd); |
1020 |
cfsetospeed(&tty, spd); |
1021 |
|
1022 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
1023 |
|INLCR|IGNCR|ICRNL|IXON); |
1024 |
tty.c_oflag |= OPOST; |
1025 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
1026 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
1027 |
switch(data_bits) {
|
1028 |
default:
|
1029 |
case 8: |
1030 |
tty.c_cflag |= CS8; |
1031 |
break;
|
1032 |
case 7: |
1033 |
tty.c_cflag |= CS7; |
1034 |
break;
|
1035 |
case 6: |
1036 |
tty.c_cflag |= CS6; |
1037 |
break;
|
1038 |
case 5: |
1039 |
tty.c_cflag |= CS5; |
1040 |
break;
|
1041 |
} |
1042 |
switch(parity) {
|
1043 |
default:
|
1044 |
case 'N': |
1045 |
break;
|
1046 |
case 'E': |
1047 |
tty.c_cflag |= PARENB; |
1048 |
break;
|
1049 |
case 'O': |
1050 |
tty.c_cflag |= PARENB | PARODD; |
1051 |
break;
|
1052 |
} |
1053 |
if (stop_bits == 2) |
1054 |
tty.c_cflag |= CSTOPB; |
1055 |
|
1056 |
tcsetattr (fd, TCSANOW, &tty); |
1057 |
} |
1058 |
|
1059 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
1060 |
{ |
1061 |
FDCharDriver *s = chr->opaque; |
1062 |
|
1063 |
switch(cmd) {
|
1064 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
1065 |
{ |
1066 |
QEMUSerialSetParams *ssp = arg; |
1067 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
1068 |
ssp->data_bits, ssp->stop_bits); |
1069 |
} |
1070 |
break;
|
1071 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
1072 |
{ |
1073 |
int enable = *(int *)arg; |
1074 |
if (enable)
|
1075 |
tcsendbreak(s->fd_in, 1);
|
1076 |
} |
1077 |
break;
|
1078 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
1079 |
{ |
1080 |
int sarg = 0; |
1081 |
int *targ = (int *)arg; |
1082 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
1083 |
*targ = 0;
|
1084 |
if (sarg & TIOCM_CTS)
|
1085 |
*targ |= CHR_TIOCM_CTS; |
1086 |
if (sarg & TIOCM_CAR)
|
1087 |
*targ |= CHR_TIOCM_CAR; |
1088 |
if (sarg & TIOCM_DSR)
|
1089 |
*targ |= CHR_TIOCM_DSR; |
1090 |
if (sarg & TIOCM_RI)
|
1091 |
*targ |= CHR_TIOCM_RI; |
1092 |
if (sarg & TIOCM_DTR)
|
1093 |
*targ |= CHR_TIOCM_DTR; |
1094 |
if (sarg & TIOCM_RTS)
|
1095 |
*targ |= CHR_TIOCM_RTS; |
1096 |
} |
1097 |
break;
|
1098 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
1099 |
{ |
1100 |
int sarg = *(int *)arg; |
1101 |
int targ = 0; |
1102 |
ioctl(s->fd_in, TIOCMGET, &targ); |
1103 |
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
1104 |
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
1105 |
if (sarg & CHR_TIOCM_CTS)
|
1106 |
targ |= TIOCM_CTS; |
1107 |
if (sarg & CHR_TIOCM_CAR)
|
1108 |
targ |= TIOCM_CAR; |
1109 |
if (sarg & CHR_TIOCM_DSR)
|
1110 |
targ |= TIOCM_DSR; |
1111 |
if (sarg & CHR_TIOCM_RI)
|
1112 |
targ |= TIOCM_RI; |
1113 |
if (sarg & CHR_TIOCM_DTR)
|
1114 |
targ |= TIOCM_DTR; |
1115 |
if (sarg & CHR_TIOCM_RTS)
|
1116 |
targ |= TIOCM_RTS; |
1117 |
ioctl(s->fd_in, TIOCMSET, &targ); |
1118 |
} |
1119 |
break;
|
1120 |
default:
|
1121 |
return -ENOTSUP;
|
1122 |
} |
1123 |
return 0; |
1124 |
} |
1125 |
|
1126 |
static CharDriverState *qemu_chr_open_tty(const char *filename) |
1127 |
{ |
1128 |
CharDriverState *chr; |
1129 |
int fd;
|
1130 |
|
1131 |
TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); |
1132 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
1133 |
chr = qemu_chr_open_fd(fd, fd); |
1134 |
if (!chr) {
|
1135 |
close(fd); |
1136 |
return NULL; |
1137 |
} |
1138 |
chr->chr_ioctl = tty_serial_ioctl; |
1139 |
qemu_chr_reset(chr); |
1140 |
return chr;
|
1141 |
} |
1142 |
#else /* ! __linux__ && ! __sun__ */ |
1143 |
static CharDriverState *qemu_chr_open_pty(void) |
1144 |
{ |
1145 |
return NULL; |
1146 |
} |
1147 |
#endif /* __linux__ || __sun__ */ |
1148 |
|
1149 |
#if defined(__linux__)
|
1150 |
typedef struct { |
1151 |
int fd;
|
1152 |
int mode;
|
1153 |
} ParallelCharDriver; |
1154 |
|
1155 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
1156 |
{ |
1157 |
if (s->mode != mode) {
|
1158 |
int m = mode;
|
1159 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
1160 |
return 0; |
1161 |
s->mode = mode; |
1162 |
} |
1163 |
return 1; |
1164 |
} |
1165 |
|
1166 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1167 |
{ |
1168 |
ParallelCharDriver *drv = chr->opaque; |
1169 |
int fd = drv->fd;
|
1170 |
uint8_t b; |
1171 |
|
1172 |
switch(cmd) {
|
1173 |
case CHR_IOCTL_PP_READ_DATA:
|
1174 |
if (ioctl(fd, PPRDATA, &b) < 0) |
1175 |
return -ENOTSUP;
|
1176 |
*(uint8_t *)arg = b; |
1177 |
break;
|
1178 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1179 |
b = *(uint8_t *)arg; |
1180 |
if (ioctl(fd, PPWDATA, &b) < 0) |
1181 |
return -ENOTSUP;
|
1182 |
break;
|
1183 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1184 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
1185 |
return -ENOTSUP;
|
1186 |
/* Linux gives only the lowest bits, and no way to know data
|
1187 |
direction! For better compatibility set the fixed upper
|
1188 |
bits. */
|
1189 |
*(uint8_t *)arg = b | 0xc0;
|
1190 |
break;
|
1191 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1192 |
b = *(uint8_t *)arg; |
1193 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
1194 |
return -ENOTSUP;
|
1195 |
break;
|
1196 |
case CHR_IOCTL_PP_READ_STATUS:
|
1197 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
1198 |
return -ENOTSUP;
|
1199 |
*(uint8_t *)arg = b; |
1200 |
break;
|
1201 |
case CHR_IOCTL_PP_DATA_DIR:
|
1202 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
1203 |
return -ENOTSUP;
|
1204 |
break;
|
1205 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
1206 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1207 |
struct ParallelIOArg *parg = arg;
|
1208 |
int n = read(fd, parg->buffer, parg->count);
|
1209 |
if (n != parg->count) {
|
1210 |
return -EIO;
|
1211 |
} |
1212 |
} |
1213 |
break;
|
1214 |
case CHR_IOCTL_PP_EPP_READ:
|
1215 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1216 |
struct ParallelIOArg *parg = arg;
|
1217 |
int n = read(fd, parg->buffer, parg->count);
|
1218 |
if (n != parg->count) {
|
1219 |
return -EIO;
|
1220 |
} |
1221 |
} |
1222 |
break;
|
1223 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
1224 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1225 |
struct ParallelIOArg *parg = arg;
|
1226 |
int n = write(fd, parg->buffer, parg->count);
|
1227 |
if (n != parg->count) {
|
1228 |
return -EIO;
|
1229 |
} |
1230 |
} |
1231 |
break;
|
1232 |
case CHR_IOCTL_PP_EPP_WRITE:
|
1233 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1234 |
struct ParallelIOArg *parg = arg;
|
1235 |
int n = write(fd, parg->buffer, parg->count);
|
1236 |
if (n != parg->count) {
|
1237 |
return -EIO;
|
1238 |
} |
1239 |
} |
1240 |
break;
|
1241 |
default:
|
1242 |
return -ENOTSUP;
|
1243 |
} |
1244 |
return 0; |
1245 |
} |
1246 |
|
1247 |
static void pp_close(CharDriverState *chr) |
1248 |
{ |
1249 |
ParallelCharDriver *drv = chr->opaque; |
1250 |
int fd = drv->fd;
|
1251 |
|
1252 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
1253 |
ioctl(fd, PPRELEASE); |
1254 |
close(fd); |
1255 |
qemu_free(drv); |
1256 |
} |
1257 |
|
1258 |
static CharDriverState *qemu_chr_open_pp(const char *filename) |
1259 |
{ |
1260 |
CharDriverState *chr; |
1261 |
ParallelCharDriver *drv; |
1262 |
int fd;
|
1263 |
|
1264 |
TFR(fd = open(filename, O_RDWR)); |
1265 |
if (fd < 0) |
1266 |
return NULL; |
1267 |
|
1268 |
if (ioctl(fd, PPCLAIM) < 0) { |
1269 |
close(fd); |
1270 |
return NULL; |
1271 |
} |
1272 |
|
1273 |
drv = qemu_mallocz(sizeof(ParallelCharDriver));
|
1274 |
drv->fd = fd; |
1275 |
drv->mode = IEEE1284_MODE_COMPAT; |
1276 |
|
1277 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1278 |
chr->chr_write = null_chr_write; |
1279 |
chr->chr_ioctl = pp_ioctl; |
1280 |
chr->chr_close = pp_close; |
1281 |
chr->opaque = drv; |
1282 |
|
1283 |
qemu_chr_reset(chr); |
1284 |
|
1285 |
return chr;
|
1286 |
} |
1287 |
#endif /* __linux__ */ |
1288 |
|
1289 |
#if defined(__FreeBSD__) || defined(__DragonFly__)
|
1290 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1291 |
{ |
1292 |
int fd = (int)chr->opaque; |
1293 |
uint8_t b; |
1294 |
|
1295 |
switch(cmd) {
|
1296 |
case CHR_IOCTL_PP_READ_DATA:
|
1297 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
1298 |
return -ENOTSUP;
|
1299 |
*(uint8_t *)arg = b; |
1300 |
break;
|
1301 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1302 |
b = *(uint8_t *)arg; |
1303 |
if (ioctl(fd, PPISDATA, &b) < 0) |
1304 |
return -ENOTSUP;
|
1305 |
break;
|
1306 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1307 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
1308 |
return -ENOTSUP;
|
1309 |
*(uint8_t *)arg = b; |
1310 |
break;
|
1311 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1312 |
b = *(uint8_t *)arg; |
1313 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
1314 |
return -ENOTSUP;
|
1315 |
break;
|
1316 |
case CHR_IOCTL_PP_READ_STATUS:
|
1317 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
1318 |
return -ENOTSUP;
|
1319 |
*(uint8_t *)arg = b; |
1320 |
break;
|
1321 |
default:
|
1322 |
return -ENOTSUP;
|
1323 |
} |
1324 |
return 0; |
1325 |
} |
1326 |
|
1327 |
static CharDriverState *qemu_chr_open_pp(const char *filename) |
1328 |
{ |
1329 |
CharDriverState *chr; |
1330 |
int fd;
|
1331 |
|
1332 |
fd = open(filename, O_RDWR); |
1333 |
if (fd < 0) |
1334 |
return NULL; |
1335 |
|
1336 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1337 |
chr->opaque = (void *)fd;
|
1338 |
chr->chr_write = null_chr_write; |
1339 |
chr->chr_ioctl = pp_ioctl; |
1340 |
return chr;
|
1341 |
} |
1342 |
#endif
|
1343 |
|
1344 |
#else /* _WIN32 */ |
1345 |
|
1346 |
typedef struct { |
1347 |
int max_size;
|
1348 |
HANDLE hcom, hrecv, hsend; |
1349 |
OVERLAPPED orecv, osend; |
1350 |
BOOL fpipe; |
1351 |
DWORD len; |
1352 |
} WinCharState; |
1353 |
|
1354 |
#define NSENDBUF 2048 |
1355 |
#define NRECVBUF 2048 |
1356 |
#define MAXCONNECT 1 |
1357 |
#define NTIMEOUT 5000 |
1358 |
|
1359 |
static int win_chr_poll(void *opaque); |
1360 |
static int win_chr_pipe_poll(void *opaque); |
1361 |
|
1362 |
static void win_chr_close(CharDriverState *chr) |
1363 |
{ |
1364 |
WinCharState *s = chr->opaque; |
1365 |
|
1366 |
if (s->hsend) {
|
1367 |
CloseHandle(s->hsend); |
1368 |
s->hsend = NULL;
|
1369 |
} |
1370 |
if (s->hrecv) {
|
1371 |
CloseHandle(s->hrecv); |
1372 |
s->hrecv = NULL;
|
1373 |
} |
1374 |
if (s->hcom) {
|
1375 |
CloseHandle(s->hcom); |
1376 |
s->hcom = NULL;
|
1377 |
} |
1378 |
if (s->fpipe)
|
1379 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
1380 |
else
|
1381 |
qemu_del_polling_cb(win_chr_poll, chr); |
1382 |
} |
1383 |
|
1384 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
1385 |
{ |
1386 |
WinCharState *s = chr->opaque; |
1387 |
COMMCONFIG comcfg; |
1388 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; |
1389 |
COMSTAT comstat; |
1390 |
DWORD size; |
1391 |
DWORD err; |
1392 |
|
1393 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1394 |
if (!s->hsend) {
|
1395 |
fprintf(stderr, "Failed CreateEvent\n");
|
1396 |
goto fail;
|
1397 |
} |
1398 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1399 |
if (!s->hrecv) {
|
1400 |
fprintf(stderr, "Failed CreateEvent\n");
|
1401 |
goto fail;
|
1402 |
} |
1403 |
|
1404 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
1405 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
1406 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1407 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
1408 |
s->hcom = NULL;
|
1409 |
goto fail;
|
1410 |
} |
1411 |
|
1412 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
1413 |
fprintf(stderr, "Failed SetupComm\n");
|
1414 |
goto fail;
|
1415 |
} |
1416 |
|
1417 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
1418 |
size = sizeof(COMMCONFIG);
|
1419 |
GetDefaultCommConfig(filename, &comcfg, &size); |
1420 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
1421 |
CommConfigDialog(filename, NULL, &comcfg);
|
1422 |
|
1423 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
1424 |
fprintf(stderr, "Failed SetCommState\n");
|
1425 |
goto fail;
|
1426 |
} |
1427 |
|
1428 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
1429 |
fprintf(stderr, "Failed SetCommMask\n");
|
1430 |
goto fail;
|
1431 |
} |
1432 |
|
1433 |
cto.ReadIntervalTimeout = MAXDWORD; |
1434 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
1435 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
1436 |
goto fail;
|
1437 |
} |
1438 |
|
1439 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
1440 |
fprintf(stderr, "Failed ClearCommError\n");
|
1441 |
goto fail;
|
1442 |
} |
1443 |
qemu_add_polling_cb(win_chr_poll, chr); |
1444 |
return 0; |
1445 |
|
1446 |
fail:
|
1447 |
win_chr_close(chr); |
1448 |
return -1; |
1449 |
} |
1450 |
|
1451 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
1452 |
{ |
1453 |
WinCharState *s = chr->opaque; |
1454 |
DWORD len, ret, size, err; |
1455 |
|
1456 |
len = len1; |
1457 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
1458 |
s->osend.hEvent = s->hsend; |
1459 |
while (len > 0) { |
1460 |
if (s->hsend)
|
1461 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
1462 |
else
|
1463 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
1464 |
if (!ret) {
|
1465 |
err = GetLastError(); |
1466 |
if (err == ERROR_IO_PENDING) {
|
1467 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
1468 |
if (ret) {
|
1469 |
buf += size; |
1470 |
len -= size; |
1471 |
} else {
|
1472 |
break;
|
1473 |
} |
1474 |
} else {
|
1475 |
break;
|
1476 |
} |
1477 |
} else {
|
1478 |
buf += size; |
1479 |
len -= size; |
1480 |
} |
1481 |
} |
1482 |
return len1 - len;
|
1483 |
} |
1484 |
|
1485 |
static int win_chr_read_poll(CharDriverState *chr) |
1486 |
{ |
1487 |
WinCharState *s = chr->opaque; |
1488 |
|
1489 |
s->max_size = qemu_chr_can_read(chr); |
1490 |
return s->max_size;
|
1491 |
} |
1492 |
|
1493 |
static void win_chr_readfile(CharDriverState *chr) |
1494 |
{ |
1495 |
WinCharState *s = chr->opaque; |
1496 |
int ret, err;
|
1497 |
uint8_t buf[1024];
|
1498 |
DWORD size; |
1499 |
|
1500 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
1501 |
s->orecv.hEvent = s->hrecv; |
1502 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
1503 |
if (!ret) {
|
1504 |
err = GetLastError(); |
1505 |
if (err == ERROR_IO_PENDING) {
|
1506 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
1507 |
} |
1508 |
} |
1509 |
|
1510 |
if (size > 0) { |
1511 |
qemu_chr_read(chr, buf, size); |
1512 |
} |
1513 |
} |
1514 |
|
1515 |
static void win_chr_read(CharDriverState *chr) |
1516 |
{ |
1517 |
WinCharState *s = chr->opaque; |
1518 |
|
1519 |
if (s->len > s->max_size)
|
1520 |
s->len = s->max_size; |
1521 |
if (s->len == 0) |
1522 |
return;
|
1523 |
|
1524 |
win_chr_readfile(chr); |
1525 |
} |
1526 |
|
1527 |
static int win_chr_poll(void *opaque) |
1528 |
{ |
1529 |
CharDriverState *chr = opaque; |
1530 |
WinCharState *s = chr->opaque; |
1531 |
COMSTAT status; |
1532 |
DWORD comerr; |
1533 |
|
1534 |
ClearCommError(s->hcom, &comerr, &status); |
1535 |
if (status.cbInQue > 0) { |
1536 |
s->len = status.cbInQue; |
1537 |
win_chr_read_poll(chr); |
1538 |
win_chr_read(chr); |
1539 |
return 1; |
1540 |
} |
1541 |
return 0; |
1542 |
} |
1543 |
|
1544 |
static CharDriverState *qemu_chr_open_win(const char *filename) |
1545 |
{ |
1546 |
CharDriverState *chr; |
1547 |
WinCharState *s; |
1548 |
|
1549 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1550 |
s = qemu_mallocz(sizeof(WinCharState));
|
1551 |
chr->opaque = s; |
1552 |
chr->chr_write = win_chr_write; |
1553 |
chr->chr_close = win_chr_close; |
1554 |
|
1555 |
if (win_chr_init(chr, filename) < 0) { |
1556 |
free(s); |
1557 |
free(chr); |
1558 |
return NULL; |
1559 |
} |
1560 |
qemu_chr_reset(chr); |
1561 |
return chr;
|
1562 |
} |
1563 |
|
1564 |
static int win_chr_pipe_poll(void *opaque) |
1565 |
{ |
1566 |
CharDriverState *chr = opaque; |
1567 |
WinCharState *s = chr->opaque; |
1568 |
DWORD size; |
1569 |
|
1570 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
1571 |
if (size > 0) { |
1572 |
s->len = size; |
1573 |
win_chr_read_poll(chr); |
1574 |
win_chr_read(chr); |
1575 |
return 1; |
1576 |
} |
1577 |
return 0; |
1578 |
} |
1579 |
|
1580 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
1581 |
{ |
1582 |
WinCharState *s = chr->opaque; |
1583 |
OVERLAPPED ov; |
1584 |
int ret;
|
1585 |
DWORD size; |
1586 |
char openname[256]; |
1587 |
|
1588 |
s->fpipe = TRUE; |
1589 |
|
1590 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1591 |
if (!s->hsend) {
|
1592 |
fprintf(stderr, "Failed CreateEvent\n");
|
1593 |
goto fail;
|
1594 |
} |
1595 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1596 |
if (!s->hrecv) {
|
1597 |
fprintf(stderr, "Failed CreateEvent\n");
|
1598 |
goto fail;
|
1599 |
} |
1600 |
|
1601 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
1602 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
1603 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
1604 |
PIPE_WAIT, |
1605 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
1606 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1607 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
1608 |
s->hcom = NULL;
|
1609 |
goto fail;
|
1610 |
} |
1611 |
|
1612 |
ZeroMemory(&ov, sizeof(ov));
|
1613 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
1614 |
ret = ConnectNamedPipe(s->hcom, &ov); |
1615 |
if (ret) {
|
1616 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
1617 |
goto fail;
|
1618 |
} |
1619 |
|
1620 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
1621 |
if (!ret) {
|
1622 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
1623 |
if (ov.hEvent) {
|
1624 |
CloseHandle(ov.hEvent); |
1625 |
ov.hEvent = NULL;
|
1626 |
} |
1627 |
goto fail;
|
1628 |
} |
1629 |
|
1630 |
if (ov.hEvent) {
|
1631 |
CloseHandle(ov.hEvent); |
1632 |
ov.hEvent = NULL;
|
1633 |
} |
1634 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
1635 |
return 0; |
1636 |
|
1637 |
fail:
|
1638 |
win_chr_close(chr); |
1639 |
return -1; |
1640 |
} |
1641 |
|
1642 |
|
1643 |
static CharDriverState *qemu_chr_open_win_pipe(const char *filename) |
1644 |
{ |
1645 |
CharDriverState *chr; |
1646 |
WinCharState *s; |
1647 |
|
1648 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1649 |
s = qemu_mallocz(sizeof(WinCharState));
|
1650 |
chr->opaque = s; |
1651 |
chr->chr_write = win_chr_write; |
1652 |
chr->chr_close = win_chr_close; |
1653 |
|
1654 |
if (win_chr_pipe_init(chr, filename) < 0) { |
1655 |
free(s); |
1656 |
free(chr); |
1657 |
return NULL; |
1658 |
} |
1659 |
qemu_chr_reset(chr); |
1660 |
return chr;
|
1661 |
} |
1662 |
|
1663 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
1664 |
{ |
1665 |
CharDriverState *chr; |
1666 |
WinCharState *s; |
1667 |
|
1668 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1669 |
s = qemu_mallocz(sizeof(WinCharState));
|
1670 |
s->hcom = fd_out; |
1671 |
chr->opaque = s; |
1672 |
chr->chr_write = win_chr_write; |
1673 |
qemu_chr_reset(chr); |
1674 |
return chr;
|
1675 |
} |
1676 |
|
1677 |
static CharDriverState *qemu_chr_open_win_con(const char *filename) |
1678 |
{ |
1679 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
1680 |
} |
1681 |
|
1682 |
static CharDriverState *qemu_chr_open_win_file_out(const char *file_out) |
1683 |
{ |
1684 |
HANDLE fd_out; |
1685 |
|
1686 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
1687 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
1688 |
if (fd_out == INVALID_HANDLE_VALUE)
|
1689 |
return NULL; |
1690 |
|
1691 |
return qemu_chr_open_win_file(fd_out);
|
1692 |
} |
1693 |
#endif /* !_WIN32 */ |
1694 |
|
1695 |
/***********************************************************/
|
1696 |
/* UDP Net console */
|
1697 |
|
1698 |
typedef struct { |
1699 |
int fd;
|
1700 |
struct sockaddr_in daddr;
|
1701 |
uint8_t buf[1024];
|
1702 |
int bufcnt;
|
1703 |
int bufptr;
|
1704 |
int max_size;
|
1705 |
} NetCharDriver; |
1706 |
|
1707 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1708 |
{ |
1709 |
NetCharDriver *s = chr->opaque; |
1710 |
|
1711 |
return sendto(s->fd, buf, len, 0, |
1712 |
(struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in)); |
1713 |
} |
1714 |
|
1715 |
static int udp_chr_read_poll(void *opaque) |
1716 |
{ |
1717 |
CharDriverState *chr = opaque; |
1718 |
NetCharDriver *s = chr->opaque; |
1719 |
|
1720 |
s->max_size = qemu_chr_can_read(chr); |
1721 |
|
1722 |
/* If there were any stray characters in the queue process them
|
1723 |
* first
|
1724 |
*/
|
1725 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
1726 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
1727 |
s->bufptr++; |
1728 |
s->max_size = qemu_chr_can_read(chr); |
1729 |
} |
1730 |
return s->max_size;
|
1731 |
} |
1732 |
|
1733 |
static void udp_chr_read(void *opaque) |
1734 |
{ |
1735 |
CharDriverState *chr = opaque; |
1736 |
NetCharDriver *s = chr->opaque; |
1737 |
|
1738 |
if (s->max_size == 0) |
1739 |
return;
|
1740 |
s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0); |
1741 |
s->bufptr = s->bufcnt; |
1742 |
if (s->bufcnt <= 0) |
1743 |
return;
|
1744 |
|
1745 |
s->bufptr = 0;
|
1746 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
1747 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
1748 |
s->bufptr++; |
1749 |
s->max_size = qemu_chr_can_read(chr); |
1750 |
} |
1751 |
} |
1752 |
|
1753 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
1754 |
{ |
1755 |
NetCharDriver *s = chr->opaque; |
1756 |
|
1757 |
if (s->fd >= 0) { |
1758 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
1759 |
udp_chr_read, NULL, chr);
|
1760 |
} |
1761 |
} |
1762 |
|
1763 |
static void udp_chr_close(CharDriverState *chr) |
1764 |
{ |
1765 |
NetCharDriver *s = chr->opaque; |
1766 |
if (s->fd >= 0) { |
1767 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1768 |
closesocket(s->fd); |
1769 |
} |
1770 |
qemu_free(s); |
1771 |
} |
1772 |
|
1773 |
static CharDriverState *qemu_chr_open_udp(const char *def) |
1774 |
{ |
1775 |
CharDriverState *chr = NULL;
|
1776 |
NetCharDriver *s = NULL;
|
1777 |
int fd = -1; |
1778 |
struct sockaddr_in saddr;
|
1779 |
|
1780 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1781 |
s = qemu_mallocz(sizeof(NetCharDriver));
|
1782 |
|
1783 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
1784 |
if (fd < 0) { |
1785 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
1786 |
goto return_err;
|
1787 |
} |
1788 |
|
1789 |
if (parse_host_src_port(&s->daddr, &saddr, def) < 0) { |
1790 |
printf("Could not parse: %s\n", def);
|
1791 |
goto return_err;
|
1792 |
} |
1793 |
|
1794 |
if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) |
1795 |
{ |
1796 |
perror("bind");
|
1797 |
goto return_err;
|
1798 |
} |
1799 |
|
1800 |
s->fd = fd; |
1801 |
s->bufcnt = 0;
|
1802 |
s->bufptr = 0;
|
1803 |
chr->opaque = s; |
1804 |
chr->chr_write = udp_chr_write; |
1805 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
1806 |
chr->chr_close = udp_chr_close; |
1807 |
return chr;
|
1808 |
|
1809 |
return_err:
|
1810 |
if (chr)
|
1811 |
free(chr); |
1812 |
if (s)
|
1813 |
free(s); |
1814 |
if (fd >= 0) |
1815 |
closesocket(fd); |
1816 |
return NULL; |
1817 |
} |
1818 |
|
1819 |
/***********************************************************/
|
1820 |
/* TCP Net console */
|
1821 |
|
1822 |
typedef struct { |
1823 |
int fd, listen_fd;
|
1824 |
int connected;
|
1825 |
int max_size;
|
1826 |
int do_telnetopt;
|
1827 |
int do_nodelay;
|
1828 |
int is_unix;
|
1829 |
} TCPCharDriver; |
1830 |
|
1831 |
static void tcp_chr_accept(void *opaque); |
1832 |
|
1833 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1834 |
{ |
1835 |
TCPCharDriver *s = chr->opaque; |
1836 |
if (s->connected) {
|
1837 |
return send_all(s->fd, buf, len);
|
1838 |
} else {
|
1839 |
/* XXX: indicate an error ? */
|
1840 |
return len;
|
1841 |
} |
1842 |
} |
1843 |
|
1844 |
static int tcp_chr_read_poll(void *opaque) |
1845 |
{ |
1846 |
CharDriverState *chr = opaque; |
1847 |
TCPCharDriver *s = chr->opaque; |
1848 |
if (!s->connected)
|
1849 |
return 0; |
1850 |
s->max_size = qemu_chr_can_read(chr); |
1851 |
return s->max_size;
|
1852 |
} |
1853 |
|
1854 |
#define IAC 255 |
1855 |
#define IAC_BREAK 243 |
1856 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
1857 |
TCPCharDriver *s, |
1858 |
uint8_t *buf, int *size)
|
1859 |
{ |
1860 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
1861 |
* char mode with no echo. All IAC options will be removed from
|
1862 |
* the buf and the do_telnetopt variable will be used to track the
|
1863 |
* state of the width of the IAC information.
|
1864 |
*
|
1865 |
* IAC commands come in sets of 3 bytes with the exception of the
|
1866 |
* "IAC BREAK" command and the double IAC.
|
1867 |
*/
|
1868 |
|
1869 |
int i;
|
1870 |
int j = 0; |
1871 |
|
1872 |
for (i = 0; i < *size; i++) { |
1873 |
if (s->do_telnetopt > 1) { |
1874 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
1875 |
/* Double IAC means send an IAC */
|
1876 |
if (j != i)
|
1877 |
buf[j] = buf[i]; |
1878 |
j++; |
1879 |
s->do_telnetopt = 1;
|
1880 |
} else {
|
1881 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
1882 |
/* Handle IAC break commands by sending a serial break */
|
1883 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
1884 |
s->do_telnetopt++; |
1885 |
} |
1886 |
s->do_telnetopt++; |
1887 |
} |
1888 |
if (s->do_telnetopt >= 4) { |
1889 |
s->do_telnetopt = 1;
|
1890 |
} |
1891 |
} else {
|
1892 |
if ((unsigned char)buf[i] == IAC) { |
1893 |
s->do_telnetopt = 2;
|
1894 |
} else {
|
1895 |
if (j != i)
|
1896 |
buf[j] = buf[i]; |
1897 |
j++; |
1898 |
} |
1899 |
} |
1900 |
} |
1901 |
*size = j; |
1902 |
} |
1903 |
|
1904 |
static void tcp_chr_read(void *opaque) |
1905 |
{ |
1906 |
CharDriverState *chr = opaque; |
1907 |
TCPCharDriver *s = chr->opaque; |
1908 |
uint8_t buf[1024];
|
1909 |
int len, size;
|
1910 |
|
1911 |
if (!s->connected || s->max_size <= 0) |
1912 |
return;
|
1913 |
len = sizeof(buf);
|
1914 |
if (len > s->max_size)
|
1915 |
len = s->max_size; |
1916 |
size = recv(s->fd, buf, len, 0);
|
1917 |
if (size == 0) { |
1918 |
/* connection closed */
|
1919 |
s->connected = 0;
|
1920 |
if (s->listen_fd >= 0) { |
1921 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
1922 |
} |
1923 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1924 |
closesocket(s->fd); |
1925 |
s->fd = -1;
|
1926 |
} else if (size > 0) { |
1927 |
if (s->do_telnetopt)
|
1928 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
1929 |
if (size > 0) |
1930 |
qemu_chr_read(chr, buf, size); |
1931 |
} |
1932 |
} |
1933 |
|
1934 |
static void tcp_chr_connect(void *opaque) |
1935 |
{ |
1936 |
CharDriverState *chr = opaque; |
1937 |
TCPCharDriver *s = chr->opaque; |
1938 |
|
1939 |
s->connected = 1;
|
1940 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
1941 |
tcp_chr_read, NULL, chr);
|
1942 |
qemu_chr_reset(chr); |
1943 |
} |
1944 |
|
1945 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
1946 |
static void tcp_chr_telnet_init(int fd) |
1947 |
{ |
1948 |
char buf[3]; |
1949 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
1950 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
1951 |
send(fd, (char *)buf, 3, 0); |
1952 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
1953 |
send(fd, (char *)buf, 3, 0); |
1954 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
1955 |
send(fd, (char *)buf, 3, 0); |
1956 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
1957 |
send(fd, (char *)buf, 3, 0); |
1958 |
} |
1959 |
|
1960 |
static void socket_set_nodelay(int fd) |
1961 |
{ |
1962 |
int val = 1; |
1963 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
1964 |
} |
1965 |
|
1966 |
static void tcp_chr_accept(void *opaque) |
1967 |
{ |
1968 |
CharDriverState *chr = opaque; |
1969 |
TCPCharDriver *s = chr->opaque; |
1970 |
struct sockaddr_in saddr;
|
1971 |
#ifndef _WIN32
|
1972 |
struct sockaddr_un uaddr;
|
1973 |
#endif
|
1974 |
struct sockaddr *addr;
|
1975 |
socklen_t len; |
1976 |
int fd;
|
1977 |
|
1978 |
for(;;) {
|
1979 |
#ifndef _WIN32
|
1980 |
if (s->is_unix) {
|
1981 |
len = sizeof(uaddr);
|
1982 |
addr = (struct sockaddr *)&uaddr;
|
1983 |
} else
|
1984 |
#endif
|
1985 |
{ |
1986 |
len = sizeof(saddr);
|
1987 |
addr = (struct sockaddr *)&saddr;
|
1988 |
} |
1989 |
fd = accept(s->listen_fd, addr, &len); |
1990 |
if (fd < 0 && errno != EINTR) { |
1991 |
return;
|
1992 |
} else if (fd >= 0) { |
1993 |
if (s->do_telnetopt)
|
1994 |
tcp_chr_telnet_init(fd); |
1995 |
break;
|
1996 |
} |
1997 |
} |
1998 |
socket_set_nonblock(fd); |
1999 |
if (s->do_nodelay)
|
2000 |
socket_set_nodelay(fd); |
2001 |
s->fd = fd; |
2002 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
2003 |
tcp_chr_connect(chr); |
2004 |
} |
2005 |
|
2006 |
static void tcp_chr_close(CharDriverState *chr) |
2007 |
{ |
2008 |
TCPCharDriver *s = chr->opaque; |
2009 |
if (s->fd >= 0) { |
2010 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
2011 |
closesocket(s->fd); |
2012 |
} |
2013 |
if (s->listen_fd >= 0) { |
2014 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
2015 |
closesocket(s->listen_fd); |
2016 |
} |
2017 |
qemu_free(s); |
2018 |
} |
2019 |
|
2020 |
static CharDriverState *qemu_chr_open_tcp(const char *host_str, |
2021 |
int is_telnet,
|
2022 |
int is_unix)
|
2023 |
{ |
2024 |
CharDriverState *chr = NULL;
|
2025 |
TCPCharDriver *s = NULL;
|
2026 |
int fd = -1, offset = 0; |
2027 |
int is_listen = 0; |
2028 |
int is_waitconnect = 1; |
2029 |
int do_nodelay = 0; |
2030 |
const char *ptr; |
2031 |
|
2032 |
ptr = host_str; |
2033 |
while((ptr = strchr(ptr,','))) { |
2034 |
ptr++; |
2035 |
if (!strncmp(ptr,"server",6)) { |
2036 |
is_listen = 1;
|
2037 |
} else if (!strncmp(ptr,"nowait",6)) { |
2038 |
is_waitconnect = 0;
|
2039 |
} else if (!strncmp(ptr,"nodelay",6)) { |
2040 |
do_nodelay = 1;
|
2041 |
} else if (!strncmp(ptr,"to=",3)) { |
2042 |
/* nothing, inet_listen() parses this one */;
|
2043 |
} else if (!strncmp(ptr,"ipv4",4)) { |
2044 |
/* nothing, inet_connect() and inet_listen() parse this one */;
|
2045 |
} else if (!strncmp(ptr,"ipv6",4)) { |
2046 |
/* nothing, inet_connect() and inet_listen() parse this one */;
|
2047 |
} else {
|
2048 |
printf("Unknown option: %s\n", ptr);
|
2049 |
goto fail;
|
2050 |
} |
2051 |
} |
2052 |
if (!is_listen)
|
2053 |
is_waitconnect = 0;
|
2054 |
|
2055 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
2056 |
s = qemu_mallocz(sizeof(TCPCharDriver));
|
2057 |
|
2058 |
if (is_listen) {
|
2059 |
chr->filename = qemu_malloc(256);
|
2060 |
if (is_unix) {
|
2061 |
pstrcpy(chr->filename, 256, "unix:"); |
2062 |
} else if (is_telnet) { |
2063 |
pstrcpy(chr->filename, 256, "telnet:"); |
2064 |
} else {
|
2065 |
pstrcpy(chr->filename, 256, "tcp:"); |
2066 |
} |
2067 |
offset = strlen(chr->filename); |
2068 |
} |
2069 |
if (is_unix) {
|
2070 |
if (is_listen) {
|
2071 |
fd = unix_listen(host_str, chr->filename + offset, 256 - offset);
|
2072 |
} else {
|
2073 |
fd = unix_connect(host_str); |
2074 |
} |
2075 |
} else {
|
2076 |
if (is_listen) {
|
2077 |
fd = inet_listen(host_str, chr->filename + offset, 256 - offset,
|
2078 |
SOCK_STREAM, 0);
|
2079 |
} else {
|
2080 |
fd = inet_connect(host_str, SOCK_STREAM); |
2081 |
} |
2082 |
} |
2083 |
if (fd < 0) |
2084 |
goto fail;
|
2085 |
|
2086 |
if (!is_waitconnect)
|
2087 |
socket_set_nonblock(fd); |
2088 |
|
2089 |
s->connected = 0;
|
2090 |
s->fd = -1;
|
2091 |
s->listen_fd = -1;
|
2092 |
s->is_unix = is_unix; |
2093 |
s->do_nodelay = do_nodelay && !is_unix; |
2094 |
|
2095 |
chr->opaque = s; |
2096 |
chr->chr_write = tcp_chr_write; |
2097 |
chr->chr_close = tcp_chr_close; |
2098 |
|
2099 |
if (is_listen) {
|
2100 |
s->listen_fd = fd; |
2101 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
2102 |
if (is_telnet)
|
2103 |
s->do_telnetopt = 1;
|
2104 |
} else {
|
2105 |
s->connected = 1;
|
2106 |
s->fd = fd; |
2107 |
socket_set_nodelay(fd); |
2108 |
tcp_chr_connect(chr); |
2109 |
} |
2110 |
|
2111 |
if (is_listen && is_waitconnect) {
|
2112 |
printf("QEMU waiting for connection on: %s\n",
|
2113 |
chr->filename ? chr->filename : host_str); |
2114 |
tcp_chr_accept(chr); |
2115 |
socket_set_nonblock(s->listen_fd); |
2116 |
} |
2117 |
|
2118 |
return chr;
|
2119 |
fail:
|
2120 |
if (fd >= 0) |
2121 |
closesocket(fd); |
2122 |
qemu_free(s); |
2123 |
qemu_free(chr); |
2124 |
return NULL; |
2125 |
} |
2126 |
|
2127 |
CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
2128 |
{ |
2129 |
const char *p; |
2130 |
CharDriverState *chr; |
2131 |
|
2132 |
if (!strcmp(filename, "vc")) { |
2133 |
chr = text_console_init(0);
|
2134 |
} else
|
2135 |
if (strstart(filename, "vc:", &p)) { |
2136 |
chr = text_console_init(p); |
2137 |
} else
|
2138 |
if (!strcmp(filename, "null")) { |
2139 |
chr = qemu_chr_open_null(); |
2140 |
} else
|
2141 |
if (strstart(filename, "tcp:", &p)) { |
2142 |
chr = qemu_chr_open_tcp(p, 0, 0); |
2143 |
} else
|
2144 |
if (strstart(filename, "telnet:", &p)) { |
2145 |
chr = qemu_chr_open_tcp(p, 1, 0); |
2146 |
} else
|
2147 |
if (strstart(filename, "udp:", &p)) { |
2148 |
chr = qemu_chr_open_udp(p); |
2149 |
} else
|
2150 |
if (strstart(filename, "mon:", &p)) { |
2151 |
chr = qemu_chr_open(label, p, NULL);
|
2152 |
if (chr) {
|
2153 |
chr = qemu_chr_open_mux(chr); |
2154 |
monitor_init(chr, MONITOR_USE_READLINE); |
2155 |
} else {
|
2156 |
printf("Unable to open driver: %s\n", p);
|
2157 |
} |
2158 |
} else if (!strcmp(filename, "msmouse")) { |
2159 |
chr = qemu_chr_open_msmouse(); |
2160 |
} else
|
2161 |
#ifndef _WIN32
|
2162 |
if (strstart(filename, "unix:", &p)) { |
2163 |
chr = qemu_chr_open_tcp(p, 0, 1); |
2164 |
} else if (strstart(filename, "file:", &p)) { |
2165 |
chr = qemu_chr_open_file_out(p); |
2166 |
} else if (strstart(filename, "pipe:", &p)) { |
2167 |
chr = qemu_chr_open_pipe(p); |
2168 |
} else if (!strcmp(filename, "pty")) { |
2169 |
chr = qemu_chr_open_pty(); |
2170 |
} else if (!strcmp(filename, "stdio")) { |
2171 |
chr = qemu_chr_open_stdio(); |
2172 |
} else
|
2173 |
#if defined(__linux__)
|
2174 |
if (strstart(filename, "/dev/parport", NULL)) { |
2175 |
chr = qemu_chr_open_pp(filename); |
2176 |
} else
|
2177 |
#elif defined(__FreeBSD__) || defined(__DragonFly__)
|
2178 |
if (strstart(filename, "/dev/ppi", NULL)) { |
2179 |
chr = qemu_chr_open_pp(filename); |
2180 |
} else
|
2181 |
#endif
|
2182 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
2183 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) |
2184 |
if (strstart(filename, "/dev/", NULL)) { |
2185 |
chr = qemu_chr_open_tty(filename); |
2186 |
} else
|
2187 |
#endif
|
2188 |
#else /* !_WIN32 */ |
2189 |
if (strstart(filename, "COM", NULL)) { |
2190 |
chr = qemu_chr_open_win(filename); |
2191 |
} else
|
2192 |
if (strstart(filename, "pipe:", &p)) { |
2193 |
chr = qemu_chr_open_win_pipe(p); |
2194 |
} else
|
2195 |
if (strstart(filename, "con:", NULL)) { |
2196 |
chr = qemu_chr_open_win_con(filename); |
2197 |
} else
|
2198 |
if (strstart(filename, "file:", &p)) { |
2199 |
chr = qemu_chr_open_win_file_out(p); |
2200 |
} else
|
2201 |
#endif
|
2202 |
#ifdef CONFIG_BRLAPI
|
2203 |
if (!strcmp(filename, "braille")) { |
2204 |
chr = chr_baum_init(); |
2205 |
} else
|
2206 |
#endif
|
2207 |
{ |
2208 |
chr = NULL;
|
2209 |
} |
2210 |
|
2211 |
if (chr) {
|
2212 |
if (!chr->filename)
|
2213 |
chr->filename = qemu_strdup(filename); |
2214 |
chr->init = init; |
2215 |
chr->label = qemu_strdup(label); |
2216 |
TAILQ_INSERT_TAIL(&chardevs, chr, next); |
2217 |
} |
2218 |
return chr;
|
2219 |
} |
2220 |
|
2221 |
void qemu_chr_close(CharDriverState *chr)
|
2222 |
{ |
2223 |
TAILQ_REMOVE(&chardevs, chr, next); |
2224 |
if (chr->chr_close)
|
2225 |
chr->chr_close(chr); |
2226 |
qemu_free(chr->filename); |
2227 |
qemu_free(chr->label); |
2228 |
qemu_free(chr); |
2229 |
} |
2230 |
|
2231 |
void qemu_chr_info(Monitor *mon)
|
2232 |
{ |
2233 |
CharDriverState *chr; |
2234 |
|
2235 |
TAILQ_FOREACH(chr, &chardevs, next) { |
2236 |
monitor_printf(mon, "%s: filename=%s\n", chr->label, chr->filename);
|
2237 |
} |
2238 |
} |