1 |
#include <unistd.h> |
2 |
#include <fcntl.h> |
3 |
#include <termios.h> |
4 |
#include <strings.h> |
5 |
#include <sys/ioctl.h> |
6 |
|
7 |
#ifdef HAVE_SYS_MODEM_H |
8 |
#include <sys/modem.h> |
9 |
#endif |
10 |
#ifdef HAVE_SYS_FILIO_H |
11 |
#include <sys/filio.h> |
12 |
#endif |
13 |
#ifdef HAVE_SYS_STRTIO_H |
14 |
#include <sys/strtio.h> |
15 |
#endif |
16 |
|
17 |
#include "rdesktop.h" |
18 |
|
19 |
#ifdef WITH_DEBUG_SERIAL |
20 |
#define DEBUG_SERIAL(args) printf args; |
21 |
#else |
22 |
#define DEBUG_SERIAL(args) |
23 |
#endif |
24 |
|
25 |
#define FILE_DEVICE_SERIAL_PORT 0x1b |
26 |
|
27 |
#define SERIAL_SET_BAUD_RATE 1 |
28 |
#define SERIAL_SET_QUEUE_SIZE 2 |
29 |
#define SERIAL_SET_LINE_CONTROL 3 |
30 |
#define SERIAL_SET_BREAK_ON 4 |
31 |
#define SERIAL_SET_BREAK_OFF 5 |
32 |
#define SERIAL_IMMEDIATE_CHAR 6 |
33 |
#define SERIAL_SET_TIMEOUTS 7 |
34 |
#define SERIAL_GET_TIMEOUTS 8 |
35 |
#define SERIAL_SET_DTR 9 |
36 |
#define SERIAL_CLR_DTR 10 |
37 |
#define SERIAL_RESET_DEVICE 11 |
38 |
#define SERIAL_SET_RTS 12 |
39 |
#define SERIAL_CLR_RTS 13 |
40 |
#define SERIAL_SET_XOFF 14 |
41 |
#define SERIAL_SET_XON 15 |
42 |
#define SERIAL_GET_WAIT_MASK 16 |
43 |
#define SERIAL_SET_WAIT_MASK 17 |
44 |
#define SERIAL_WAIT_ON_MASK 18 |
45 |
#define SERIAL_PURGE 19 |
46 |
#define SERIAL_GET_BAUD_RATE 20 |
47 |
#define SERIAL_GET_LINE_CONTROL 21 |
48 |
#define SERIAL_GET_CHARS 22 |
49 |
#define SERIAL_SET_CHARS 23 |
50 |
#define SERIAL_GET_HANDFLOW 24 |
51 |
#define SERIAL_SET_HANDFLOW 25 |
52 |
#define SERIAL_GET_MODEMSTATUS 26 |
53 |
#define SERIAL_GET_COMMSTATUS 27 |
54 |
#define SERIAL_XOFF_COUNTER 28 |
55 |
#define SERIAL_GET_PROPERTIES 29 |
56 |
#define SERIAL_GET_DTRRTS 30 |
57 |
#define SERIAL_LSRMST_INSERT 31 |
58 |
#define SERIAL_CONFIG_SIZE 32 |
59 |
#define SERIAL_GET_COMMCONFIG 33 |
60 |
#define SERIAL_SET_COMMCONFIG 34 |
61 |
#define SERIAL_GET_STATS 35 |
62 |
#define SERIAL_CLEAR_STATS 36 |
63 |
#define SERIAL_GET_MODEM_CONTROL 37 |
64 |
#define SERIAL_SET_MODEM_CONTROL 38 |
65 |
#define SERIAL_SET_FIFO_CONTROL 39 |
66 |
|
67 |
#define STOP_BITS_1 0 |
68 |
#define STOP_BITS_2 2 |
69 |
|
70 |
#define NO_PARITY 0 |
71 |
#define ODD_PARITY 1 |
72 |
#define EVEN_PARITY 2 |
73 |
|
74 |
#define SERIAL_PURGE_TXABORT 0x00000001 |
75 |
#define SERIAL_PURGE_RXABORT 0x00000002 |
76 |
#define SERIAL_PURGE_TXCLEAR 0x00000004 |
77 |
#define SERIAL_PURGE_RXCLEAR 0x00000008 |
78 |
|
79 |
/* SERIAL_WAIT_ON_MASK */ |
80 |
#define SERIAL_EV_RXCHAR 0x0001 // Any Character received |
81 |
#define SERIAL_EV_RXFLAG 0x0002 // Received certain character |
82 |
#define SERIAL_EV_TXEMPTY 0x0004 // Transmitt Queue Empty |
83 |
#define SERIAL_EV_CTS 0x0008 // CTS changed state |
84 |
#define SERIAL_EV_DSR 0x0010 // DSR changed state |
85 |
#define SERIAL_EV_RLSD 0x0020 // RLSD changed state |
86 |
#define SERIAL_EV_BREAK 0x0040 // BREAK received |
87 |
#define SERIAL_EV_ERR 0x0080 // Line status error occurred |
88 |
#define SERIAL_EV_RING 0x0100 // Ring signal detected |
89 |
#define SERIAL_EV_PERR 0x0200 // Printer error occured |
90 |
#define SERIAL_EV_RX80FULL 0x0400 // Receive buffer is 80 percent full |
91 |
#define SERIAL_EV_EVENT1 0x0800 // Provider specific event 1 |
92 |
#define SERIAL_EV_EVENT2 0x1000 // Provider specific event 2 |
93 |
|
94 |
/* Modem Status */ |
95 |
#define SERIAL_MS_DTR 0x01 |
96 |
#define SERIAL_MS_RTS 0x02 |
97 |
#define SERIAL_MS_CTS 0x10 |
98 |
#define SERIAL_MS_DSR 0x20 |
99 |
#define SERIAL_MS_RNG 0x40 |
100 |
#define SERIAL_MS_CAR 0x80 |
101 |
|
102 |
/* Handflow */ |
103 |
#define SERIAL_DTR_CONTROL 0x01 |
104 |
#define SERIAL_CTS_HANDSHAKE 0x08 |
105 |
#define SERIAL_ERROR_ABORT 0x80000000 |
106 |
|
107 |
#define SERIAL_XON_HANDSHAKE 0x01 |
108 |
#define SERIAL_XOFF_HANDSHAKE 0x02 |
109 |
#define SERIAL_DSR_SENSITIVITY 0x40 |
110 |
|
111 |
#define SERIAL_CHAR_EOF 0 |
112 |
#define SERIAL_CHAR_ERROR 1 |
113 |
#define SERIAL_CHAR_BREAK 2 |
114 |
#define SERIAL_CHAR_EVENT 3 |
115 |
#define SERIAL_CHAR_XON 4 |
116 |
#define SERIAL_CHAR_XOFF 5 |
117 |
|
118 |
#ifndef CRTSCTS |
119 |
#define CRTSCTS 0 |
120 |
#endif |
121 |
|
122 |
/* FIONREAD should really do the same thing as TIOCINQ, where it is |
123 |
* not available */ |
124 |
#ifndef TIOCINQ |
125 |
#define TIOCINQ FIONREAD |
126 |
#endif |
127 |
|
128 |
extern RDPDR_DEVICE g_rdpdr_device[]; |
129 |
|
130 |
static SERIAL_DEVICE * |
131 |
get_serial_info(NTHANDLE handle) |
132 |
{ |
133 |
int index; |
134 |
|
135 |
for (index = 0; index < RDPDR_MAX_DEVICES; index++) |
136 |
{ |
137 |
if (handle == g_rdpdr_device[index].handle) |
138 |
return (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
139 |
} |
140 |
return NULL; |
141 |
} |
142 |
|
143 |
static BOOL |
144 |
get_termios(SERIAL_DEVICE * pser_inf, NTHANDLE serial_fd) |
145 |
{ |
146 |
speed_t speed; |
147 |
struct termios *ptermios; |
148 |
|
149 |
ptermios = pser_inf->ptermios; |
150 |
|
151 |
if (tcgetattr(serial_fd, ptermios) == -1) |
152 |
return False; |
153 |
|
154 |
speed = cfgetispeed(ptermios); |
155 |
switch (speed) |
156 |
{ |
157 |
#ifdef B75 |
158 |
case B75: |
159 |
pser_inf->baud_rate = 75; |
160 |
break; |
161 |
#endif |
162 |
#ifdef B110 |
163 |
case B110: |
164 |
pser_inf->baud_rate = 110; |
165 |
break; |
166 |
#endif |
167 |
#ifdef B134 |
168 |
case B134: |
169 |
pser_inf->baud_rate = 134; |
170 |
break; |
171 |
#endif |
172 |
#ifdef B150 |
173 |
case B150: |
174 |
pser_inf->baud_rate = 150; |
175 |
break; |
176 |
#endif |
177 |
#ifdef B300 |
178 |
case B300: |
179 |
pser_inf->baud_rate = 300; |
180 |
break; |
181 |
#endif |
182 |
#ifdef B600 |
183 |
case B600: |
184 |
pser_inf->baud_rate = 600; |
185 |
break; |
186 |
#endif |
187 |
#ifdef B1200 |
188 |
case B1200: |
189 |
pser_inf->baud_rate = 1200; |
190 |
break; |
191 |
#endif |
192 |
#ifdef B1800 |
193 |
case B1800: |
194 |
pser_inf->baud_rate = 1800; |
195 |
break; |
196 |
#endif |
197 |
#ifdef B2400 |
198 |
case B2400: |
199 |
pser_inf->baud_rate = 2400; |
200 |
break; |
201 |
#endif |
202 |
#ifdef B4800 |
203 |
case B4800: |
204 |
pser_inf->baud_rate = 4800; |
205 |
break; |
206 |
#endif |
207 |
#ifdef B9600 |
208 |
case B9600: |
209 |
pser_inf->baud_rate = 9600; |
210 |
break; |
211 |
#endif |
212 |
#ifdef B19200 |
213 |
case B19200: |
214 |
pser_inf->baud_rate = 19200; |
215 |
break; |
216 |
#endif |
217 |
#ifdef B38400 |
218 |
case B38400: |
219 |
pser_inf->baud_rate = 38400; |
220 |
break; |
221 |
#endif |
222 |
#ifdef B57600 |
223 |
case B57600: |
224 |
pser_inf->baud_rate = 57600; |
225 |
break; |
226 |
#endif |
227 |
#ifdef B115200 |
228 |
case B115200: |
229 |
pser_inf->baud_rate = 115200; |
230 |
break; |
231 |
#endif |
232 |
#ifdef B230400 |
233 |
case B230400: |
234 |
pser_inf->baud_rate = 230400; |
235 |
break; |
236 |
#endif |
237 |
#ifdef B460800 |
238 |
case B460800: |
239 |
pser_inf->baud_rate = 460800; |
240 |
break; |
241 |
#endif |
242 |
default: |
243 |
pser_inf->baud_rate = 9600; |
244 |
break; |
245 |
} |
246 |
|
247 |
speed = cfgetospeed(ptermios); |
248 |
pser_inf->dtr = (speed == B0) ? 0 : 1; |
249 |
|
250 |
pser_inf->stop_bits = (ptermios->c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1; |
251 |
pser_inf->parity = |
252 |
(ptermios-> |
253 |
c_cflag & PARENB) ? ((ptermios-> |
254 |
c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY; |
255 |
switch (ptermios->c_cflag & CSIZE) |
256 |
{ |
257 |
case CS5: |
258 |
pser_inf->word_length = 5; |
259 |
break; |
260 |
case CS6: |
261 |
pser_inf->word_length = 6; |
262 |
break; |
263 |
case CS7: |
264 |
pser_inf->word_length = 7; |
265 |
break; |
266 |
default: |
267 |
pser_inf->word_length = 8; |
268 |
break; |
269 |
} |
270 |
|
271 |
if (ptermios->c_cflag & CRTSCTS) |
272 |
{ |
273 |
pser_inf->control = SERIAL_DTR_CONTROL | SERIAL_CTS_HANDSHAKE | SERIAL_ERROR_ABORT; |
274 |
} |
275 |
else |
276 |
{ |
277 |
pser_inf->control = SERIAL_DTR_CONTROL | SERIAL_ERROR_ABORT; |
278 |
} |
279 |
|
280 |
pser_inf->xonoff = SERIAL_DSR_SENSITIVITY; |
281 |
if (ptermios->c_iflag & IXON) |
282 |
pser_inf->xonoff |= SERIAL_XON_HANDSHAKE; |
283 |
|
284 |
if (ptermios->c_iflag & IXOFF) |
285 |
pser_inf->xonoff |= SERIAL_XOFF_HANDSHAKE; |
286 |
|
287 |
pser_inf->chars[SERIAL_CHAR_XON] = ptermios->c_cc[VSTART]; |
288 |
pser_inf->chars[SERIAL_CHAR_XOFF] = ptermios->c_cc[VSTOP]; |
289 |
pser_inf->chars[SERIAL_CHAR_EOF] = ptermios->c_cc[VEOF]; |
290 |
pser_inf->chars[SERIAL_CHAR_BREAK] = ptermios->c_cc[VINTR]; |
291 |
pser_inf->chars[SERIAL_CHAR_ERROR] = ptermios->c_cc[VKILL]; |
292 |
|
293 |
return True; |
294 |
} |
295 |
|
296 |
static void |
297 |
set_termios(SERIAL_DEVICE * pser_inf, NTHANDLE serial_fd) |
298 |
{ |
299 |
speed_t speed; |
300 |
|
301 |
struct termios *ptermios; |
302 |
|
303 |
ptermios = pser_inf->ptermios; |
304 |
|
305 |
|
306 |
switch (pser_inf->baud_rate) |
307 |
{ |
308 |
#ifdef B75 |
309 |
case 75: |
310 |
speed = B75; |
311 |
break; |
312 |
#endif |
313 |
#ifdef B110 |
314 |
case 110: |
315 |
speed = B110; |
316 |
break; |
317 |
#endif |
318 |
#ifdef B134 |
319 |
case 134: |
320 |
speed = B134; |
321 |
break; |
322 |
#endif |
323 |
#ifdef B150 |
324 |
case 150: |
325 |
speed = B150; |
326 |
break; |
327 |
#endif |
328 |
#ifdef B300 |
329 |
case 300: |
330 |
speed = B300; |
331 |
break; |
332 |
#endif |
333 |
#ifdef B600 |
334 |
case 600: |
335 |
speed = B600; |
336 |
break; |
337 |
#endif |
338 |
#ifdef B1200 |
339 |
case 1200: |
340 |
speed = B1200; |
341 |
break; |
342 |
#endif |
343 |
#ifdef B1800 |
344 |
case 1800: |
345 |
speed = B1800; |
346 |
break; |
347 |
#endif |
348 |
#ifdef B2400 |
349 |
case 2400: |
350 |
speed = B2400; |
351 |
break; |
352 |
#endif |
353 |
#ifdef B4800 |
354 |
case 4800: |
355 |
speed = B4800; |
356 |
break; |
357 |
#endif |
358 |
#ifdef B9600 |
359 |
case 9600: |
360 |
speed = B9600; |
361 |
break; |
362 |
#endif |
363 |
#ifdef B19200 |
364 |
case 19200: |
365 |
speed = B19200; |
366 |
break; |
367 |
#endif |
368 |
#ifdef B38400 |
369 |
case 38400: |
370 |
speed = B38400; |
371 |
break; |
372 |
#endif |
373 |
#ifdef B57600 |
374 |
case 57600: |
375 |
speed = B57600; |
376 |
break; |
377 |
#endif |
378 |
#ifdef B115200 |
379 |
case 115200: |
380 |
speed = B115200; |
381 |
break; |
382 |
#endif |
383 |
#ifdef B230400 |
384 |
case 230400: |
385 |
speed = B115200; |
386 |
break; |
387 |
#endif |
388 |
#ifdef B460800 |
389 |
case 460800: |
390 |
speed = B115200; |
391 |
break; |
392 |
#endif |
393 |
default: |
394 |
speed = B9600; |
395 |
break; |
396 |
} |
397 |
|
398 |
#ifdef CBAUD |
399 |
ptermios->c_cflag &= ~CBAUD; |
400 |
ptermios->c_cflag |= speed; |
401 |
#else |
402 |
/* on systems with separate ispeed and ospeed, we can remember the speed |
403 |
in ispeed while changing DTR with ospeed */ |
404 |
cfsetispeed(pser_inf->ptermios, speed); |
405 |
cfsetospeed(pser_inf->ptermios, pser_inf->dtr ? speed : 0); |
406 |
#endif |
407 |
|
408 |
ptermios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE | CRTSCTS); |
409 |
switch (pser_inf->stop_bits) |
410 |
{ |
411 |
case STOP_BITS_2: |
412 |
ptermios->c_cflag |= CSTOPB; |
413 |
break; |
414 |
default: |
415 |
ptermios->c_cflag &= ~CSTOPB; |
416 |
break; |
417 |
} |
418 |
|
419 |
switch (pser_inf->parity) |
420 |
{ |
421 |
case EVEN_PARITY: |
422 |
ptermios->c_cflag |= PARENB; |
423 |
break; |
424 |
case ODD_PARITY: |
425 |
ptermios->c_cflag |= PARENB | PARODD; |
426 |
break; |
427 |
case NO_PARITY: |
428 |
ptermios->c_cflag &= ~(PARENB | PARODD); |
429 |
break; |
430 |
} |
431 |
|
432 |
switch (pser_inf->word_length) |
433 |
{ |
434 |
case 5: |
435 |
ptermios->c_cflag |= CS5; |
436 |
break; |
437 |
case 6: |
438 |
ptermios->c_cflag |= CS6; |
439 |
break; |
440 |
case 7: |
441 |
ptermios->c_cflag |= CS7; |
442 |
break; |
443 |
default: |
444 |
ptermios->c_cflag |= CS8; |
445 |
break; |
446 |
} |
447 |
|
448 |
#if 0 |
449 |
if (pser_inf->rts) |
450 |
ptermios->c_cflag |= CRTSCTS; |
451 |
else |
452 |
ptermios->c_cflag &= ~CRTSCTS; |
453 |
#endif |
454 |
|
455 |
if (pser_inf->control & SERIAL_CTS_HANDSHAKE) |
456 |
{ |
457 |
ptermios->c_cflag |= CRTSCTS; |
458 |
} |
459 |
else |
460 |
{ |
461 |
ptermios->c_cflag &= ~CRTSCTS; |
462 |
} |
463 |
|
464 |
|
465 |
if (pser_inf->xonoff & SERIAL_XON_HANDSHAKE) |
466 |
{ |
467 |
ptermios->c_iflag |= IXON | IMAXBEL; |
468 |
} |
469 |
if (pser_inf->xonoff & SERIAL_XOFF_HANDSHAKE) |
470 |
{ |
471 |
ptermios->c_iflag |= IXOFF | IMAXBEL; |
472 |
} |
473 |
|
474 |
if ((pser_inf->xonoff & (SERIAL_XOFF_HANDSHAKE | SERIAL_XON_HANDSHAKE)) == 0) |
475 |
{ |
476 |
ptermios->c_iflag &= ~IXON; |
477 |
ptermios->c_iflag &= ~IXOFF; |
478 |
} |
479 |
|
480 |
ptermios->c_cc[VSTART] = pser_inf->chars[SERIAL_CHAR_XON]; |
481 |
ptermios->c_cc[VSTOP] = pser_inf->chars[SERIAL_CHAR_XOFF]; |
482 |
ptermios->c_cc[VEOF] = pser_inf->chars[SERIAL_CHAR_EOF]; |
483 |
ptermios->c_cc[VINTR] = pser_inf->chars[SERIAL_CHAR_BREAK]; |
484 |
ptermios->c_cc[VKILL] = pser_inf->chars[SERIAL_CHAR_ERROR]; |
485 |
|
486 |
tcsetattr(serial_fd, TCSANOW, ptermios); |
487 |
} |
488 |
|
489 |
/* Enumeration of devices from rdesktop.c */ |
490 |
/* returns numer of units found and initialized. */ |
491 |
/* optarg looks like ':com1=/dev/ttyS0' */ |
492 |
/* when it arrives to this function. */ |
493 |
/* :com1=/dev/ttyS0,com2=/dev/ttyS1 */ |
494 |
int |
495 |
serial_enum_devices(uint32 * id, char *optarg) |
496 |
{ |
497 |
SERIAL_DEVICE *pser_inf; |
498 |
|
499 |
char *pos = optarg; |
500 |
char *pos2; |
501 |
int count = 0; |
502 |
|
503 |
// skip the first colon |
504 |
optarg++; |
505 |
while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
506 |
{ |
507 |
// Init data structures for device |
508 |
pser_inf = (SERIAL_DEVICE *) xmalloc(sizeof(SERIAL_DEVICE)); |
509 |
pser_inf->ptermios = (struct termios *) xmalloc(sizeof(struct termios)); |
510 |
memset(pser_inf->ptermios, 0, sizeof(struct termios)); |
511 |
pser_inf->pold_termios = (struct termios *) xmalloc(sizeof(struct termios)); |
512 |
memset(pser_inf->pold_termios, 0, sizeof(struct termios)); |
513 |
|
514 |
pos2 = next_arg(optarg, '='); |
515 |
strcpy(g_rdpdr_device[*id].name, optarg); |
516 |
|
517 |
toupper_str(g_rdpdr_device[*id].name); |
518 |
|
519 |
g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
520 |
strcpy(g_rdpdr_device[*id].local_path, pos2); |
521 |
printf("SERIAL %s to %s\n", g_rdpdr_device[*id].name, |
522 |
g_rdpdr_device[*id].local_path); |
523 |
// set device type |
524 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_SERIAL; |
525 |
g_rdpdr_device[*id].pdevice_data = (void *) pser_inf; |
526 |
count++; |
527 |
(*id)++; |
528 |
|
529 |
optarg = pos; |
530 |
} |
531 |
return count; |
532 |
} |
533 |
|
534 |
static NTSTATUS |
535 |
serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposition, |
536 |
uint32 flags_and_attributes, char *filename, NTHANDLE * handle) |
537 |
{ |
538 |
NTHANDLE serial_fd; |
539 |
SERIAL_DEVICE *pser_inf; |
540 |
struct termios *ptermios; |
541 |
|
542 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[device_id].pdevice_data; |
543 |
ptermios = pser_inf->ptermios; |
544 |
serial_fd = open(g_rdpdr_device[device_id].local_path, O_RDWR | O_NOCTTY | O_NONBLOCK); |
545 |
|
546 |
if (serial_fd == -1) |
547 |
{ |
548 |
perror("open"); |
549 |
return STATUS_ACCESS_DENIED; |
550 |
} |
551 |
|
552 |
if (!get_termios(pser_inf, serial_fd)) |
553 |
{ |
554 |
printf("INFO: SERIAL %s access denied\n", g_rdpdr_device[device_id].name); |
555 |
fflush(stdout); |
556 |
return STATUS_ACCESS_DENIED; |
557 |
} |
558 |
|
559 |
// Store handle for later use |
560 |
g_rdpdr_device[device_id].handle = serial_fd; |
561 |
|
562 |
/* some sane information */ |
563 |
DEBUG_SERIAL(("INFO: SERIAL %s to %s\nINFO: speed %u baud, stop bits %u, parity %u, word length %u bits, dtr %u, rts %u\n", g_rdpdr_device[device_id].name, g_rdpdr_device[device_id].local_path, pser_inf->baud_rate, pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length, pser_inf->dtr, pser_inf->rts)); |
564 |
|
565 |
pser_inf->ptermios->c_iflag &= |
566 |
~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON); |
567 |
pser_inf->ptermios->c_oflag &= ~OPOST; |
568 |
pser_inf->ptermios->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN | XCASE); |
569 |
pser_inf->ptermios->c_cflag &= ~(CSIZE | PARENB); |
570 |
pser_inf->ptermios->c_cflag |= CS8; |
571 |
|
572 |
tcsetattr(serial_fd, TCSANOW, pser_inf->ptermios); |
573 |
|
574 |
pser_inf->event_txempty = 0; |
575 |
pser_inf->event_cts = 0; |
576 |
pser_inf->event_dsr = 0; |
577 |
pser_inf->event_rlsd = 0; |
578 |
pser_inf->event_pending = 0; |
579 |
|
580 |
*handle = serial_fd; |
581 |
|
582 |
/* all read and writes should be non blocking */ |
583 |
if (fcntl(*handle, F_SETFL, O_NONBLOCK) == -1) |
584 |
perror("fcntl"); |
585 |
|
586 |
pser_inf->read_total_timeout_constant = 5; |
587 |
|
588 |
return STATUS_SUCCESS; |
589 |
} |
590 |
|
591 |
static NTSTATUS |
592 |
serial_close(NTHANDLE handle) |
593 |
{ |
594 |
int i = get_device_index(handle); |
595 |
if (i >= 0) |
596 |
g_rdpdr_device[i].handle = 0; |
597 |
|
598 |
rdpdr_abort_io(handle, 0, STATUS_TIMEOUT); |
599 |
close(handle); |
600 |
return STATUS_SUCCESS; |
601 |
} |
602 |
|
603 |
static NTSTATUS |
604 |
serial_read(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
605 |
{ |
606 |
long timeout; |
607 |
SERIAL_DEVICE *pser_inf; |
608 |
struct termios *ptermios; |
609 |
#ifdef WITH_DEBUG_SERIAL |
610 |
int bytes_inqueue; |
611 |
#endif |
612 |
|
613 |
|
614 |
timeout = 90; |
615 |
pser_inf = get_serial_info(handle); |
616 |
ptermios = pser_inf->ptermios; |
617 |
|
618 |
// Set timeouts kind of like the windows serial timeout parameters. Multiply timeout |
619 |
// with requested read size |
620 |
if (pser_inf->read_total_timeout_multiplier | pser_inf->read_total_timeout_constant) |
621 |
{ |
622 |
timeout = |
623 |
(pser_inf->read_total_timeout_multiplier * length + |
624 |
pser_inf->read_total_timeout_constant + 99) / 100; |
625 |
} |
626 |
else if (pser_inf->read_interval_timeout) |
627 |
{ |
628 |
timeout = (pser_inf->read_interval_timeout * length + 99) / 100; |
629 |
} |
630 |
|
631 |
// If a timeout is set, do a blocking read, which times out after some time. |
632 |
// It will make rdesktop less responsive, but it will improve serial performance, by not |
633 |
// reading one character at a time. |
634 |
if (timeout == 0) |
635 |
{ |
636 |
ptermios->c_cc[VTIME] = 0; |
637 |
ptermios->c_cc[VMIN] = 0; |
638 |
} |
639 |
else |
640 |
{ |
641 |
ptermios->c_cc[VTIME] = timeout; |
642 |
ptermios->c_cc[VMIN] = 1; |
643 |
} |
644 |
tcsetattr(handle, TCSANOW, ptermios); |
645 |
|
646 |
#ifdef WITH_DEBUG_SERIAL |
647 |
ioctl(handle, TIOCINQ, &bytes_inqueue); |
648 |
DEBUG_SERIAL(("serial_read inqueue: %d expected %d\n", bytes_inqueue, length)); |
649 |
#endif |
650 |
|
651 |
*result = read(handle, data, length); |
652 |
|
653 |
#ifdef WITH_DEBUG_SERIAL |
654 |
DEBUG_SERIAL(("serial_read Bytes %d\n", *result)); |
655 |
if (*result > 0) |
656 |
hexdump(data, *result); |
657 |
#endif |
658 |
|
659 |
return STATUS_SUCCESS; |
660 |
} |
661 |
|
662 |
static NTSTATUS |
663 |
serial_write(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
664 |
{ |
665 |
SERIAL_DEVICE *pser_inf; |
666 |
|
667 |
pser_inf = get_serial_info(handle); |
668 |
|
669 |
*result = write(handle, data, length); |
670 |
|
671 |
if (*result > 0) |
672 |
pser_inf->event_txempty = *result; |
673 |
|
674 |
DEBUG_SERIAL(("serial_write length %d, offset %d result %d\n", length, offset, *result)); |
675 |
|
676 |
return STATUS_SUCCESS; |
677 |
} |
678 |
|
679 |
static NTSTATUS |
680 |
serial_device_control(NTHANDLE handle, uint32 request, STREAM in, STREAM out) |
681 |
{ |
682 |
int flush_mask, purge_mask; |
683 |
uint32 result, modemstate; |
684 |
uint8 immediate; |
685 |
SERIAL_DEVICE *pser_inf; |
686 |
struct termios *ptermios; |
687 |
|
688 |
if ((request >> 16) != FILE_DEVICE_SERIAL_PORT) |
689 |
return STATUS_INVALID_PARAMETER; |
690 |
|
691 |
pser_inf = get_serial_info(handle); |
692 |
ptermios = pser_inf->ptermios; |
693 |
|
694 |
/* extract operation */ |
695 |
request >>= 2; |
696 |
request &= 0xfff; |
697 |
|
698 |
switch (request) |
699 |
{ |
700 |
case SERIAL_SET_BAUD_RATE: |
701 |
in_uint32_le(in, pser_inf->baud_rate); |
702 |
set_termios(pser_inf, handle); |
703 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BAUD_RATE %d\n", |
704 |
pser_inf->baud_rate)); |
705 |
break; |
706 |
case SERIAL_GET_BAUD_RATE: |
707 |
out_uint32_le(out, pser_inf->baud_rate); |
708 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_BAUD_RATE %d\n", |
709 |
pser_inf->baud_rate)); |
710 |
break; |
711 |
case SERIAL_SET_QUEUE_SIZE: |
712 |
in_uint32_le(in, pser_inf->queue_in_size); |
713 |
in_uint32_le(in, pser_inf->queue_out_size); |
714 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_QUEUE_SIZE in %d out %d\n", |
715 |
pser_inf->queue_in_size, pser_inf->queue_out_size)); |
716 |
break; |
717 |
case SERIAL_SET_LINE_CONTROL: |
718 |
in_uint8(in, pser_inf->stop_bits); |
719 |
in_uint8(in, pser_inf->parity); |
720 |
in_uint8(in, pser_inf->word_length); |
721 |
set_termios(pser_inf, handle); |
722 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_LINE_CONTROL stop %d parity %d word %d\n", pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length)); |
723 |
break; |
724 |
case SERIAL_GET_LINE_CONTROL: |
725 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_LINE_CONTROL\n")); |
726 |
out_uint8(out, pser_inf->stop_bits); |
727 |
out_uint8(out, pser_inf->parity); |
728 |
out_uint8(out, pser_inf->word_length); |
729 |
break; |
730 |
case SERIAL_IMMEDIATE_CHAR: |
731 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_IMMEDIATE_CHAR\n")); |
732 |
in_uint8(in, immediate); |
733 |
serial_write(handle, &immediate, 1, 0, &result); |
734 |
break; |
735 |
case SERIAL_CONFIG_SIZE: |
736 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_CONFIG_SIZE\n")); |
737 |
out_uint32_le(out, 0); |
738 |
break; |
739 |
case SERIAL_GET_CHARS: |
740 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_CHARS\n")); |
741 |
out_uint8a(out, pser_inf->chars, 6); |
742 |
break; |
743 |
case SERIAL_SET_CHARS: |
744 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_CHARS\n")); |
745 |
in_uint8a(in, pser_inf->chars, 6); |
746 |
#ifdef WITH_DEBUG_SERIAL |
747 |
hexdump(pser_inf->chars, 6); |
748 |
#endif |
749 |
set_termios(pser_inf, handle); |
750 |
break; |
751 |
case SERIAL_GET_HANDFLOW: |
752 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_HANDFLOW\n")); |
753 |
get_termios(pser_inf, handle); |
754 |
out_uint32_le(out, pser_inf->control); |
755 |
out_uint32_le(out, pser_inf->xonoff); /* Xon/Xoff */ |
756 |
out_uint32_le(out, pser_inf->onlimit); |
757 |
out_uint32_le(out, pser_inf->offlimit); |
758 |
break; |
759 |
case SERIAL_SET_HANDFLOW: |
760 |
in_uint32_le(in, pser_inf->control); |
761 |
in_uint32_le(in, pser_inf->xonoff); |
762 |
in_uint32_le(in, pser_inf->onlimit); |
763 |
in_uint32_le(in, pser_inf->offlimit); |
764 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_HANDFLOW %x %x %x %x\n", |
765 |
pser_inf->control, pser_inf->xonoff, pser_inf->onlimit, |
766 |
pser_inf->onlimit)); |
767 |
set_termios(pser_inf, handle); |
768 |
break; |
769 |
case SERIAL_SET_TIMEOUTS: |
770 |
in_uint32(in, pser_inf->read_interval_timeout); |
771 |
in_uint32(in, pser_inf->read_total_timeout_multiplier); |
772 |
in_uint32(in, pser_inf->read_total_timeout_constant); |
773 |
in_uint32(in, pser_inf->write_total_timeout_multiplier); |
774 |
in_uint32(in, pser_inf->write_total_timeout_constant); |
775 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_TIMEOUTS read timeout %d %d %d\n", |
776 |
pser_inf->read_interval_timeout, |
777 |
pser_inf->read_total_timeout_multiplier, |
778 |
pser_inf->read_total_timeout_constant)); |
779 |
break; |
780 |
case SERIAL_GET_TIMEOUTS: |
781 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_TIMEOUTS read timeout %d %d %d\n", |
782 |
pser_inf->read_interval_timeout, |
783 |
pser_inf->read_total_timeout_multiplier, |
784 |
pser_inf->read_total_timeout_constant)); |
785 |
|
786 |
out_uint32(out, pser_inf->read_interval_timeout); |
787 |
out_uint32(out, pser_inf->read_total_timeout_multiplier); |
788 |
out_uint32(out, pser_inf->read_total_timeout_constant); |
789 |
out_uint32(out, pser_inf->write_total_timeout_multiplier); |
790 |
out_uint32(out, pser_inf->write_total_timeout_constant); |
791 |
break; |
792 |
case SERIAL_GET_WAIT_MASK: |
793 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_WAIT_MASK %X\n", |
794 |
pser_inf->wait_mask); out_uint32(out, pser_inf->wait_mask)); |
795 |
break; |
796 |
case SERIAL_SET_WAIT_MASK: |
797 |
in_uint32(in, pser_inf->wait_mask); |
798 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_WAIT_MASK %X\n", |
799 |
pser_inf->wait_mask)); |
800 |
break; |
801 |
case SERIAL_SET_DTR: |
802 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_DTR\n")); |
803 |
ioctl(handle, TIOCMGET, &result); |
804 |
result |= TIOCM_DTR; |
805 |
ioctl(handle, TIOCMSET, &result); |
806 |
pser_inf->dtr = 1; |
807 |
break; |
808 |
case SERIAL_CLR_DTR: |
809 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_CLR_DTR\n")); |
810 |
ioctl(handle, TIOCMGET, &result); |
811 |
result &= ~TIOCM_DTR; |
812 |
ioctl(handle, TIOCMSET, &result); |
813 |
pser_inf->dtr = 0; |
814 |
break; |
815 |
case SERIAL_SET_RTS: |
816 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_RTS\n")); |
817 |
ioctl(handle, TIOCMGET, &result); |
818 |
result |= TIOCM_RTS; |
819 |
ioctl(handle, TIOCMSET, &result); |
820 |
pser_inf->rts = 1; |
821 |
break; |
822 |
case SERIAL_CLR_RTS: |
823 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_CLR_RTS\n")); |
824 |
ioctl(handle, TIOCMGET, &result); |
825 |
result &= ~TIOCM_RTS; |
826 |
ioctl(handle, TIOCMSET, &result); |
827 |
pser_inf->rts = 0; |
828 |
break; |
829 |
case SERIAL_GET_MODEMSTATUS: |
830 |
modemstate = 0; |
831 |
#ifdef TIOCMGET |
832 |
ioctl(handle, TIOCMGET, &result); |
833 |
if (result & TIOCM_CTS) |
834 |
modemstate |= SERIAL_MS_CTS; |
835 |
if (result & TIOCM_DSR) |
836 |
modemstate |= SERIAL_MS_DSR; |
837 |
if (result & TIOCM_RNG) |
838 |
modemstate |= SERIAL_MS_RNG; |
839 |
if (result & TIOCM_CAR) |
840 |
modemstate |= SERIAL_MS_CAR; |
841 |
if (result & TIOCM_DTR) |
842 |
modemstate |= SERIAL_MS_DTR; |
843 |
if (result & TIOCM_RTS) |
844 |
modemstate |= SERIAL_MS_RTS; |
845 |
#endif |
846 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_MODEMSTATUS %X\n", modemstate)); |
847 |
out_uint32_le(out, modemstate); |
848 |
break; |
849 |
case SERIAL_GET_COMMSTATUS: |
850 |
out_uint32_le(out, 0); /* Errors */ |
851 |
out_uint32_le(out, 0); /* Hold reasons */ |
852 |
|
853 |
result = 0; |
854 |
ioctl(handle, TIOCINQ, &result); |
855 |
out_uint32_le(out, result); /* Amount in in queue */ |
856 |
if (result) |
857 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_COMMSTATUS in queue %d\n", |
858 |
result)); |
859 |
|
860 |
result = 0; |
861 |
ioctl(handle, TIOCOUTQ, &result); |
862 |
out_uint32_le(out, result); /* Amount in out queue */ |
863 |
if (result) |
864 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_COMMSTATUS out queue %d\n", result)); |
865 |
|
866 |
out_uint8(out, 0); /* EofReceived */ |
867 |
out_uint8(out, 0); /* WaitForImmediate */ |
868 |
break; |
869 |
case SERIAL_PURGE: |
870 |
in_uint32(in, purge_mask); |
871 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_PURGE purge_mask %X\n", purge_mask)); |
872 |
flush_mask = 0; |
873 |
if (purge_mask & SERIAL_PURGE_TXCLEAR) |
874 |
flush_mask |= TCOFLUSH; |
875 |
if (purge_mask & SERIAL_PURGE_RXCLEAR) |
876 |
flush_mask |= TCIFLUSH; |
877 |
if (flush_mask != 0) |
878 |
tcflush(handle, flush_mask); |
879 |
if (purge_mask & SERIAL_PURGE_TXABORT) |
880 |
rdpdr_abort_io(handle, 4, STATUS_CANCELLED); |
881 |
if (purge_mask & SERIAL_PURGE_RXABORT) |
882 |
rdpdr_abort_io(handle, 3, STATUS_CANCELLED); |
883 |
break; |
884 |
case SERIAL_WAIT_ON_MASK: |
885 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_WAIT_ON_MASK %X\n", |
886 |
pser_inf->wait_mask)); |
887 |
pser_inf->event_pending = 1; |
888 |
if (serial_get_event(handle, &result)) |
889 |
{ |
890 |
DEBUG_SERIAL(("WAIT end event = %x\n", result)); |
891 |
out_uint32_le(out, result); |
892 |
break; |
893 |
} |
894 |
return STATUS_PENDING; |
895 |
break; |
896 |
case SERIAL_SET_BREAK_ON: |
897 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BREAK_ON\n")); |
898 |
tcsendbreak(handle, 0); |
899 |
break; |
900 |
case SERIAL_RESET_DEVICE: |
901 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_RESET_DEVICE\n")); |
902 |
break; |
903 |
case SERIAL_SET_BREAK_OFF: |
904 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BREAK_OFF\n")); |
905 |
break; |
906 |
case SERIAL_SET_XOFF: |
907 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_XOFF\n")); |
908 |
break; |
909 |
case SERIAL_SET_XON: |
910 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_XON\n")); |
911 |
tcflow(handle, TCION); |
912 |
break; |
913 |
default: |
914 |
unimpl("SERIAL IOCTL %d\n", request); |
915 |
return STATUS_INVALID_PARAMETER; |
916 |
} |
917 |
|
918 |
return STATUS_SUCCESS; |
919 |
} |
920 |
|
921 |
BOOL |
922 |
serial_get_event(NTHANDLE handle, uint32 * result) |
923 |
{ |
924 |
int index; |
925 |
SERIAL_DEVICE *pser_inf; |
926 |
int bytes; |
927 |
BOOL ret = False; |
928 |
|
929 |
*result = 0; |
930 |
index = get_device_index(handle); |
931 |
if (index < 0) |
932 |
return False; |
933 |
|
934 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
935 |
|
936 |
|
937 |
ioctl(handle, TIOCINQ, &bytes); |
938 |
|
939 |
if (bytes > 0) |
940 |
{ |
941 |
DEBUG_SERIAL(("serial_get_event Bytes %d\n", bytes)); |
942 |
if (bytes > pser_inf->event_rlsd) |
943 |
{ |
944 |
pser_inf->event_rlsd = bytes; |
945 |
if (pser_inf->wait_mask & SERIAL_EV_RLSD) |
946 |
{ |
947 |
DEBUG_SERIAL(("Event -> SERIAL_EV_RLSD \n")); |
948 |
*result |= SERIAL_EV_RLSD; |
949 |
ret = True; |
950 |
} |
951 |
|
952 |
} |
953 |
|
954 |
if ((bytes > 1) && (pser_inf->wait_mask & SERIAL_EV_RXFLAG)) |
955 |
{ |
956 |
DEBUG_SERIAL(("Event -> SERIAL_EV_RXFLAG Bytes %d\n", bytes)); |
957 |
*result |= SERIAL_EV_RXFLAG; |
958 |
ret = True; |
959 |
} |
960 |
if ((pser_inf->wait_mask & SERIAL_EV_RXCHAR)) |
961 |
{ |
962 |
DEBUG_SERIAL(("Event -> SERIAL_EV_RXCHAR Bytes %d\n", bytes)); |
963 |
*result |= SERIAL_EV_RXCHAR; |
964 |
ret = True; |
965 |
} |
966 |
|
967 |
} |
968 |
else |
969 |
{ |
970 |
pser_inf->event_rlsd = 0; |
971 |
} |
972 |
|
973 |
|
974 |
ioctl(handle, TIOCOUTQ, &bytes); |
975 |
if ((bytes == 0) |
976 |
&& (pser_inf->event_txempty > 0) && (pser_inf->wait_mask & SERIAL_EV_TXEMPTY)) |
977 |
{ |
978 |
|
979 |
DEBUG_SERIAL(("Event -> SERIAL_EV_TXEMPTY\n")); |
980 |
*result |= SERIAL_EV_TXEMPTY; |
981 |
ret = True; |
982 |
} |
983 |
pser_inf->event_txempty = bytes; |
984 |
|
985 |
|
986 |
ioctl(handle, TIOCMGET, &bytes); |
987 |
if ((bytes & TIOCM_DSR) != pser_inf->event_dsr) |
988 |
{ |
989 |
pser_inf->event_dsr = bytes & TIOCM_DSR; |
990 |
if (pser_inf->wait_mask & SERIAL_EV_DSR) |
991 |
{ |
992 |
DEBUG_SERIAL(("event -> SERIAL_EV_DSR %s\n", |
993 |
(bytes & TIOCM_DSR) ? "ON" : "OFF")); |
994 |
*result |= SERIAL_EV_DSR; |
995 |
ret = True; |
996 |
} |
997 |
} |
998 |
|
999 |
if ((bytes & TIOCM_CTS) != pser_inf->event_cts) |
1000 |
{ |
1001 |
pser_inf->event_cts = bytes & TIOCM_CTS; |
1002 |
if (pser_inf->wait_mask & SERIAL_EV_CTS) |
1003 |
{ |
1004 |
DEBUG_SERIAL((" EVENT-> SERIAL_EV_CTS %s\n", |
1005 |
(bytes & TIOCM_CTS) ? "ON" : "OFF")); |
1006 |
*result |= SERIAL_EV_CTS; |
1007 |
ret = True; |
1008 |
} |
1009 |
} |
1010 |
|
1011 |
if (ret) |
1012 |
pser_inf->event_pending = 0; |
1013 |
|
1014 |
return ret; |
1015 |
} |
1016 |
|
1017 |
/* Read timeout for a given file descripter (device) when adding fd's to select() */ |
1018 |
BOOL |
1019 |
serial_get_timeout(NTHANDLE handle, uint32 length, uint32 * timeout, uint32 * itv_timeout) |
1020 |
{ |
1021 |
int index; |
1022 |
SERIAL_DEVICE *pser_inf; |
1023 |
|
1024 |
index = get_device_index(handle); |
1025 |
if (index < 0) |
1026 |
return True; |
1027 |
|
1028 |
if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL) |
1029 |
{ |
1030 |
return False; |
1031 |
} |
1032 |
|
1033 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
1034 |
|
1035 |
*timeout = |
1036 |
pser_inf->read_total_timeout_multiplier * length + |
1037 |
pser_inf->read_total_timeout_constant; |
1038 |
*itv_timeout = pser_inf->read_interval_timeout; |
1039 |
return True; |
1040 |
} |
1041 |
|
1042 |
DEVICE_FNS serial_fns = { |
1043 |
serial_create, |
1044 |
serial_close, |
1045 |
serial_read, |
1046 |
serial_write, |
1047 |
serial_device_control |
1048 |
}; |