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