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- fix Building without Nagra not possible at Nagra_Merlin https://trac.streamboard...
[oscam.git] / reader-bulcrypt.c
blob2f8dad58620cfacccc1cd38b0bd5271cd9162e91
1 /*
2 * Bulcrypt card reader for OSCAM
3 * Copyright (C) 2012 Unix Solutions Ltd.
4 *
5 * Authors: Anton Tinchev (atl@unixsol.org)
6 * Georgi Chorbadzhiyski (gf@unixsol.org)
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 *
21 * =========================================================================
22 *
23 * For more information read the code and the comments. We have tried to
24 * write clear code with lots of comments so it is easy for others to
25 * understand what is going on. There are some things marked *FIXME*,
26 * that are mostly unknown or not fully understand.
27 *
28 * WHAT WAS TESTED AND WAS WORKING:
29 * - Cards with bulcrypt v1 ("cherga"/carpet) are working (we have cards
30 * that report CardType: 0x4c and 0x75.
31 * - Cards return valid code words for subscribed channels.
32 * - Tested with channels encrypted with CAID 0x5581 and 0x4aee on
33 * Hellas 39E. Both MPEG2 (SD) and H.264 (SD and HD) channels were
34 * decrypted.
35 * - Brand new cards were inited without ever being put into providers STBs.
36 * as long the protocol you are using is sending EMMs to the card.
37 * - AU was working (subscription dates and packages were updated)
38 * as long the protocol you are using is sending EMMs to the card.
39 *
40 * WHAT WE DON'T KNOW (YET!):
41 * - How to deobfuscate v2 codewords.
42 *
43 * PERSONAL MESSAGES:
44 * - Many thanks to ilian_71 @ satfriends forum for the protocol info.
45 * - Shouts to yuriks for oscam-ymod, pity it is violating the GPL.
46 *
47 */
48
49 #include "globals.h"
50 #ifdef READER_BULCRYPT
51 #include "oscam-work.h"
52 #include "reader-common.h"
53
54 static const uint8_t atr_carpet[] = { 0x3b, 0x20, 0x00 };
55
56 // *FIXME* We do not know how every 4th byte of the sess_key is calculated.
57 // Currently they are correct thou and code words checksums are correct are
58 // the deobfuscation.
59 static const uint8_t sess_key[] = { 0xF2, 0x21, 0xC5, 0x69, 0x28, 0x86, 0xFB, 0x9E,
60 0xC0, 0x20, 0x28, 0x06, 0xD2, 0x23, 0x72, 0x31 };
61
62 static const uint8_t cmd_set_key[] = { 0xDE, 0x1C, 0x00, 0x00, 0x0A, 0x12, 0x08, 0x56,
63 0x47, 0x38, 0x29, 0x10, 0xAF, 0xBE, 0xCD };
64
65 static const uint8_t cmd_set_key_v2[] = { 0xDE, 0x1C, 0x00, 0x00, 0x0A, 0x12, 0x08, 0x00,
66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
67 // Response: 90 00
68
69 // V2
70 static const uint8_t cmd_card_v2_key1[] = { 0xDE, 0x12, 0x00, 0x00, 0x00, 0x00 };
71 static const uint8_t cmd_card_v2_key2[] = { 0xDE, 0x1E, 0x00, 0x00, 0x12, 0x00 };
72
73 static const uint8_t cmd_cardtype1[] = { 0xDE, 0x16, 0x00, 0x00, 0x00, 0x00 };
74 static const uint8_t cmd_cardtype2[] = { 0xDE, 0x1E, 0x00, 0x00, 0x03, 0x00 };
75 // Response1: 90 03
76 // Response2: 01 01 4C 90 00 or 01 01 xx 90 00
77 // xx - 4C or 75 (Card type)
78
79 static const uint8_t cmd_unkn_0a1[] = { 0xDE, 0x0A, 0x00, 0x00, 0x00, 0x00 };
80 static const uint8_t cmd_unkn_0a2[] = { 0xDE, 0x1E, 0x00, 0x00, 0x03, 0x00 };
81 // Response1: 90 03
82 // Response2: 08 01 00 90 00
83
84 static const uint8_t cmd_cardsn1[] = { 0xDE, 0x18, 0x00, 0x00, 0x00, 0x00 };
85 static const uint8_t cmd_cardsn2[] = { 0xDE, 0x1E, 0x00, 0x00, 0x06, 0x00 };
86 // Response1: 90 06
87 // Response2: 02 04 xx xx xx xy 90 00
88 // xx - Card HEX serial
89 // y - Unknown *FIXME*
90
91 static const uint8_t cmd_ascsn1[] = { 0xDE, 0x1A, 0x00, 0x00, 0x00, 0x00 };
92 static const uint8_t cmd_ascsn2[] = { 0xDE, 0x1E, 0x00, 0x00, 0x0F, 0x00 };
93 // Response1: 90 0F
94 // Response2: 05 0D xx xx 20 xx xx xx xx xx xx 20 xx xx xx 90 00
95 // xx - Card ASCII serial
96
97 static const uint8_t cmd_ecm_empty[] = { 0xDE, 0x20, 0x00, 0x00, 0x00, 0x00 };
98 // Response: 90 00
99
100 static const uint8_t cmd_ecm[] = { 0xDE, 0x20, 0x00, 0x00, 0x4c };
101 // The last byte is ECM length
102
103 static const uint8_t cmd_ecm_get_cw[] = { 0xDE, 0x1E, 0x00, 0x00, 0x13, 0x00 };
104 // Response: 0A 11 80 xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx 90 00
105 // 80 - Returned codeword type? *FIXME*
106 // xx - Obfuscated CW
107
108 static const uint8_t cmd_emm1[] = { 0xDE, 0x02, 0x82, 0x00, 0xb0 };
109 // Response: 90 00 (EMM written OK) or
110 // Response: 90 0A (Subscription data was updated)
111 // The last byte is EMM length (0xb0)
112
113 static const uint8_t cmd_emm2[] = { 0xDE, 0x04, 0x00, 0x00, 0xb0 };
114 // Response: 90 00 (EMM written OK)
115 // cmd_emm[2] = emm_cmd1
116 // cmd_emm[3] = emm_cmd2
117 // The last byte is EMM length (0xb0)
118
119 static const uint8_t cmd_sub_info1[] = { 0xDE, 0x06, 0x00, 0x00, 0x00, 0x00 };
120 static const uint8_t cmd_sub_info2[] = { 0xDE, 0x1E, 0x00, 0x00, 0x2B, 0x00 };
121 // See bulcrypt_card_info() for reponse description
122
123 struct bulcrypt_data
124 {
125 uint8_t bulcrypt_version;
126 };
127
128 static int32_t bulcrypt_card_init(struct s_reader *reader, ATR *newatr)
129 {
130 int i;
131 char tmp[1024];
132 char card_serial[16];
133 const uint8_t *set_key_command;
134 uint8_t card_type;
135
136 get_atr
137 def_resp
138
139 if(memcmp(atr, atr_carpet, MIN(sizeof(atr_carpet), atr_size)) != 0)
140 {
141 if(atr_size == 3)
142 {
143 rdr_log(reader, "ATR_len=3 but ATR is unknown: %s",
144 cs_hexdump(1, atr, atr_size, tmp, sizeof(tmp)));
145 }
146 return ERROR;
147 }
148
149 if(!cs_malloc(&reader->csystem_data, sizeof(struct bulcrypt_data)))
150 { return ERROR; }
151
152 struct bulcrypt_data *csystem_data = reader->csystem_data;
153
154 reader->nprov = 1;
155 memset(reader->prid, 0, sizeof(reader->prid));
156 memset(reader->hexserial, 0, sizeof(reader->hexserial));
157 memset(card_serial, 0, sizeof(card_serial));
158
159 rdr_log(reader, "Bulcrypt card detected, checking card version.");
160
161 // Do we have Bulcrypt V2 card?
162 write_cmd(cmd_card_v2_key1, NULL);
163 write_cmd(cmd_card_v2_key2, NULL);
164 if(cta_lr < 18 || (cta_res[0] != 0x11 && cta_res[1] != 0x10))
165 {
166 // The card is v1
167 csystem_data->bulcrypt_version = 1;
168 set_key_command = cmd_set_key;
169 }
170 else
171 {
172 // The card is v2
173 csystem_data->bulcrypt_version = 2;
174 set_key_command = cmd_set_key_v2;
175 }
176
177 // Set CW obfuscation key
178 write_cmd(set_key_command, set_key_command + 5);
179 if(cta_lr < 2 || (cta_res[0] != 0x90 && cta_res[1] != 0x00))
180 {
181 rdr_log(reader, "(cmd_set_key) Unexpected card answer: %s",
182 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
183 return ERROR;
184 }
185
186 rdr_log(reader, "Bulcrypt v%d card detected.%s", csystem_data->bulcrypt_version,
187 csystem_data->bulcrypt_version != 1 ? " *UNSUPPORTED CARD VERSION*" : "");
188
189 // Read card type
190 write_cmd(cmd_cardtype1, NULL);
191 write_cmd(cmd_cardtype2, NULL);
192 if(cta_lr < 5 || (cta_res[0] != 0x01 && cta_res[1] != 0x01))
193 {
194 rdr_log(reader, "(cmd_cardtype) Unexpected card answer: %s",
195 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
196 return ERROR;
197 }
198 card_type = cta_res[2]; // We have seen 0x4c and 0x75
199
200 // *FIXME* Unknown command
201 write_cmd(cmd_unkn_0a1, NULL);
202 write_cmd(cmd_unkn_0a2, NULL);
203
204 // Read card HEX serial
205 write_cmd(cmd_cardsn1, NULL);
206 write_cmd(cmd_cardsn2, NULL);
207 if(cta_lr < 6 || (cta_res[0] != 0x02 && cta_res[1] != 0x04))
208 {
209 rdr_log(reader, "(card_sn) Unexpected card answer: %s",
210 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
211 return ERROR;
212 }
213 memcpy(reader->hexserial, cta_res + 2, 4);
214 // Skip bottom four bits (they are 0x0b on our cards)
215 reader->hexserial[3] = reader->hexserial[3] & 0xF0;
216
217 // Read card ASCII serial
218 write_cmd(cmd_ascsn1, NULL);
219 write_cmd(cmd_ascsn2, NULL);
220
221 if(cta_lr < 15 || (cta_res[0] != 0x05 && cta_res[1] != 0x0d))
222 {
223 rdr_log(reader, "(asc_sn) Unexpected card answer: %s",
224 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
225 return ERROR;
226 }
227 memcpy(card_serial, cta_res + 2, 13);
228 cta_lr = cs_strlen(card_serial);
229
230 for(i = 0; i < cta_lr; i++)
231 {
232 if(card_serial[i] == ' ')
233 { continue; }
234
235 // Sanity check
236 if(!isdigit((uint8_t)card_serial[i]))
237 { card_serial[i] = '*'; }
238 }
239
240 // Write empty ECM, *FIXME* why are we doing this? To prepare the card somehow?
241 write_cmd(cmd_ecm_empty, NULL);
242
243 // The HEX serial have nothing to do with Serial (they do not match)
244 rdr_log_sensitive(reader, "CAID: 0x4AEE|0x5581, CardType: 0x%02x, Serial: {%s}, HexSerial: {%02X %02X %02X %02X}",
245 card_type,
246 card_serial,
247 reader->hexserial[0], reader->hexserial[1], reader->hexserial[2], reader->hexserial[3]);
248
249 rdr_log(reader, "Ready for requests.");
250
251 return OK;
252 }
253
254 static int cw_is_valid(struct s_reader *reader, uint8_t *cw)
255 {
256 unsigned int i = 0, cnt = 0;
257 do
258 {
259 if(cw[i++] == 0)
260 { cnt++; }
261 }
262 while(i < 8);
263
264 if(cnt == 8)
265 {
266 rdr_log(reader, "Invalid CW (all zeroes)");
267 return ERROR;
268 }
269
270 uint8_t cksum1 = cw[0] + cw[1] + cw[2];
271 uint8_t cksum2 = cw[4] + cw[5] + cw[6];
272 if(cksum1 != cw[3] || cksum2 != cw[7])
273 {
274 if(cksum1 != cw[3])
275 { rdr_log(reader, "Invalid CW (cksum1 mismatch expected 0x%02x got 0x%02x)", cksum1, cw[3]); }
276 if(cksum2 != cw[7])
277 { rdr_log(reader, "Invalid CW (cksum2 mismatch expected 0x%02x got 0x%02x)", cksum2, cw[7]); }
278 return ERROR;
279 }
280
281 return OK;
282 }
283
284 /*
285 Bulcrypt ECM structure:
286
287 80 70 - ECM header (80 | 81)
288 4c - ECM length after this field (0x4c == 76 bytes)
289 4f 8d 87 0b - unixts == 1334675211 == Tue Apr 17 18:06:51 EEST 2012
290 00 66 - *FIXME* Program number?
291 00 7d - *FIXME*
292 ce 70 - ECM counter
293 0b 88 - ECM type
294 xx yy zz .. - Encrypted ECM payload (64 bytes)
295
296 */
297 static int32_t bulcrypt_do_ecm(struct s_reader *reader, const ECM_REQUEST *er, struct s_ecm_answer *ea)
298 {
299 char tmp[512];
300 uint8_t ecm_cmd[256];
301 struct bulcrypt_data *csystem_data = reader->csystem_data;
302
303 def_resp
304
305 int32_t ecm_len = check_sct_len(er->ecm, 3);
306 if(ecm_len < 64 || ecm_len > 188)
307 {
308 rdr_log(reader, "Wrong ECM length: %d", ecm_len);
309 return ERROR;
310 }
311
312 // CMD: DE 20 00 00 4C
313 memcpy(ecm_cmd, cmd_ecm, sizeof(cmd_ecm));
314 ecm_cmd[4] = er->ecm[2]; // Set ECM length
315 memcpy(ecm_cmd + sizeof(cmd_ecm), er->ecm + 3, ecm_cmd[4]);
316
317 // Send ECM
318 write_cmd(ecm_cmd, ecm_cmd + 5);
319 if(cta_lr != 2)
320 {
321 rdr_log(reader, "(ecm_cmd) Unexpected card answer: %s",
322 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
323 return ERROR;
324 }
325
326 if(cta_res[0] == 0x90 && cta_res[1] == 0x03)
327 {
328 rdr_log(reader, "No active subscription.");
329 return ERROR;
330 }
331
332 if(!(cta_res[0] == 0x90 && cta_res[1] == 0x13))
333 {
334 rdr_log(reader, "(ecm_cmd) Unexpected card answer: %s",
335 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
336 return ERROR;
337 }
338
339 // Call get_cw
340 write_cmd(cmd_ecm_get_cw, NULL);
341
342 // rdr_log(reader, "CW_LOG: %s", cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
343 if(cta_lr < 20 || (cta_res[0] != 0x0a && cta_res[1] != 0x11))
344 {
345 rdr_log(reader, "(get_cw) Unexpected card answer: %s",
346 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
347 return ERROR;
348 }
349
350 // *FIXME* is the bellow info true?
351 // 0x80 (ver 1) is supported
352 // 0xc0 (ver 2) is *NOT* supported currently
353 if(cta_res[2] == 0xc0)
354 {
355 rdr_log(reader, "Possibly unsupported codeword (bulcrypt v2): %s",
356 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
357 // *FIXME* commented for testing, this really should be an error
358 //return ERROR;
359 }
360
361 // Remove code word obfuscation
362 uint8_t *cw = cta_res + 3;
363 if(csystem_data->bulcrypt_version == 1)
364 {
365 int i;
366 for(i = 0 ; i < 16; i++)
367 {
368 cw[i] = cw[i] ^ sess_key[i];
369 }
370 }
371
372 if(er->ecm[0] == 0x81)
373 {
374 // Even/Odd CWs should be exchanged
375 memcpy(ea->cw, cw + 8, 8);
376 memcpy(ea->cw + 8, cw, 8);
377 }
378 else
379 {
380 memcpy(ea->cw, cw, 8);
381 memcpy(ea->cw + 8, cw + 8, 8);
382 }
383
384 // Check if DCW is valid
385 if(!cw_is_valid(reader, ea->cw) || !cw_is_valid(reader, ea->cw + 8))
386 { return ERROR; }
387
388 return OK;
389 }
390
391 /*
392 Bulcrypt EMMs structure
393
394 All EMMs are with section length 183 (0xb7)
395 3 bytes section header
396 7 bytes EMM header
397 173 bytes payload
398
399 82 70 - UNUQUE_EMM_82|8a
400 b4 - Payload length (0xb4 == 180)
401 xx xx xx xy - Card HEX SN (the last 4 bits (y) must be masked)
402 payload
403
404 85 70 - GLOBAL_EMM_85|8b
405 b4 - Payload length (0xb4 == 180)
406 xx xx yy yy - Card HEX SN (the last 16 bits (y) must be masked)
407 payload
408
409 84 70 - SHARED_EMM_84
410 b4 - Payload length (0xb4 == 180)
411 xx xx - Card HEX SN Prefix
412 yy -
413 zz -
414 payload
415
416 Padding EMM:
417 8f 70 b4 ff ff ff ff ff ff ff ff ff .. .. (ff to the end)
418
419 Stats for EMMs collected for a period of 1 hours and 24 minutes
420
421 2279742 - 82 70 b4 - unique_82
422 19051 - 8a 70 b4 - unique_8a (polaris equivallent of 0x82)
423 199949 - 84 70 b4 - shared_84
424 595309 - 85 70 b4 - global_85
425 6417 - 8b 70 b4 - global_8b (polaris equivallent of 0x85)
426 74850 - 8f 70 b4 - filler
427
428 Total EMMs for the period: 3175317
429 */
430
431 #define BULCRYPT_EMM_UNIQUE_82 0x82 // Addressed at single card (updates subscription info)
432 #define BULCRYPT_EMM_UNIQUE_8a 0x8a // Addressed at single card (like 0x82) used for Polaris
433 #define BULCRYPT_EMM_SHARED_84 0x84 // Addressed to 4096 cards (updates keys)
434 #define BULCRYPT_EMM_GLOBAL_85 0x85 // Addressed at 4096 cards (updates packages)
435 #define BULCRYPT_EMM_GLOBAL_8b 0x8b // Addressed at 4096 cards (like 0x85) used for Polaris
436 #define BULCRYPT_EMM_FILLER 0x8f // Filler to pad the EMM stream
437
438 static int32_t bulcrypt_get_emm_type(EMM_PACKET *ep, struct s_reader *reader)
439 {
440 char dump_emm_sn[64];
441 int32_t emm_len = check_sct_len(ep->emm, 3);
442
443 memset(ep->hexserial, 0, 8);
444
445 if(emm_len < 176)
446 {
447 rdr_log_dbg(reader, D_TRACE | D_EMM, "emm_len < 176 (%u): %s",
448 emm_len, cs_hexdump(1, ep->emm, 12, dump_emm_sn, sizeof(dump_emm_sn)));
449 ep->type = UNKNOWN;
450 return 0;
451 }
452
453 ep->type = UNKNOWN;
454 switch(ep->emm[0])
455 {
456 case BULCRYPT_EMM_UNIQUE_82:
457 ep->type = UNIQUE;
458 break; // Bulsatcom
459
460 case BULCRYPT_EMM_UNIQUE_8a:
461 ep->type = UNIQUE;
462 break; // Polaris
463
464 case BULCRYPT_EMM_SHARED_84:
465 ep->type = SHARED;
466 break;
467
468 case BULCRYPT_EMM_GLOBAL_85:
469 ep->type = GLOBAL;
470 break; // Bulsatcom
471
472 case BULCRYPT_EMM_GLOBAL_8b:
473 ep->type = GLOBAL;
474 break; // Polaris
475 }
476
477 bool ret = false;
478 if(ep->type == UNIQUE)
479 {
480 // The serial numbers looks like this:
481 // aa bb cc dd
482 memcpy(ep->hexserial, ep->emm + 3, 4);
483 ret = reader->hexserial[0] == ep->hexserial[0] &&
484 reader->hexserial[1] == ep->hexserial[1] &&
485 reader->hexserial[2] == ep->hexserial[2] &&
486 ((reader->hexserial[3] & 0xF0) == (ep->hexserial[3] & 0xF0));
487 }
488 else
489 {
490 // To match EMM_84, EMM_85, EMM_8b
491 // aa bb -- --
492 memcpy(ep->hexserial, ep->emm + 3, 2);
493 ret = reader->hexserial[0] == ep->hexserial[0] &&
494 reader->hexserial[1] == ep->hexserial[1];
495 }
496
497 if(ret)
498 {
499 char dump_card_sn[64];
500 cs_hexdump(1, reader->hexserial, 4, dump_card_sn, sizeof(dump_card_sn));
501 cs_hexdump(1, ep->hexserial, 4, dump_emm_sn, sizeof(dump_emm_sn));
502 rdr_log_sensitive(reader, "EMM_%s-%02x, emm_sn = {%s}, card_sn = {%s}",
503 ep->type == UNIQUE ? "UNIQUE" :
504 ep->type == SHARED ? "SHARED" :
505 ep->type == GLOBAL ? "GLOBAL" : "??????",
506 ep->emm[0],
507 dump_emm_sn,
508 dump_card_sn);
509 }
510
511 return ret;
512 }
513
514 static int32_t bulcrypt_get_emm_filter(struct s_reader *rdr, struct s_csystem_emm_filter **emm_filters, unsigned int *filter_count)
515 {
516 if(*emm_filters == NULL)
517 {
518 const unsigned int max_filter_count = 5;
519 if(!cs_malloc(emm_filters, max_filter_count * sizeof(struct s_csystem_emm_filter)))
520 { return ERROR; }
521
522 struct s_csystem_emm_filter *filters = *emm_filters;
523 *filter_count = 0;
524
525 int32_t idx = 0;
526
527 filters[idx].type = EMM_UNIQUE;
528 filters[idx].enabled = 1;
529 filters[idx].filter[0] = 0x82;
530 filters[idx].filter[1] = rdr->hexserial[0];
531 filters[idx].filter[2] = rdr->hexserial[1];
532 filters[idx].filter[3] = rdr->hexserial[2];
533 filters[idx].filter[4] = rdr->hexserial[3];
534 filters[idx].mask[0] = 0xFF;
535 filters[idx].mask[1] = 0xFF;
536 filters[idx].mask[2] = 0xFF;
537 filters[idx].mask[3] = 0xFF;
538 filters[idx].mask[4] = 0xF0;
539 idx++;
540
541 filters[idx].type = EMM_UNIQUE;
542 filters[idx].enabled = 1;
543 filters[idx].filter[0] = 0x8a;
544 filters[idx].filter[1] = rdr->hexserial[0];
545 filters[idx].filter[2] = rdr->hexserial[1];
546 filters[idx].filter[3] = rdr->hexserial[2];
547 filters[idx].filter[4] = rdr->hexserial[3];
548 filters[idx].mask[0] = 0xFF;
549 filters[idx].mask[1] = 0xFF;
550 filters[idx].mask[2] = 0xFF;
551 filters[idx].mask[3] = 0xFF;
552 filters[idx].mask[4] = 0xF0;
553 idx++;
554
555 filters[idx].type = EMM_SHARED;
556 filters[idx].enabled = 1;
557 filters[idx].filter[0] = 0x84;
558 filters[idx].filter[1] = rdr->hexserial[0];
559 filters[idx].filter[2] = rdr->hexserial[1];
560 filters[idx].mask[0] = 0xFF;
561 filters[idx].mask[1] = 0xFF;
562 filters[idx].mask[2] = 0xFF;
563 idx++;
564
565 filters[idx].type = EMM_GLOBAL;
566 filters[idx].enabled = 1;
567 filters[idx].filter[0] = 0x85;
568 filters[idx].filter[1] = rdr->hexserial[0];
569 filters[idx].filter[2] = rdr->hexserial[1];
570 filters[idx].mask[0] = 0xFF;
571 filters[idx].mask[1] = 0xFF;
572 filters[idx].mask[2] = 0xFF;
573 idx++;
574
575 filters[idx].type = EMM_GLOBAL;
576 filters[idx].enabled = 1;
577 filters[idx].filter[0] = 0x8b;
578 filters[idx].filter[1] = rdr->hexserial[0];
579 filters[idx].filter[2] = rdr->hexserial[1];
580 filters[idx].mask[0] = 0xFF;
581 filters[idx].mask[1] = 0xFF;
582 filters[idx].mask[2] = 0xFF;
583 idx++;
584
585 *filter_count = idx;
586 }
587
588 return OK;
589 }
590
591 static int32_t bulcrypt_do_emm(struct s_reader *reader, EMM_PACKET *ep)
592 {
593 char tmp[512];
594 uint8_t emm_cmd[1024];
595
596 def_resp
597
598 // DE 04 xx yy B0
599 // xx == EMM type (emm[0])
600 // yy == EMM type2 (emm[5])
601 // B0 == EMM len (176)
602 memcpy(emm_cmd, cmd_emm1, sizeof(cmd_emm1));
603 memcpy(emm_cmd + sizeof(cmd_emm1), ep->emm + 7, 176);
604
605 switch(ep->emm[0])
606 {
607 case BULCRYPT_EMM_UNIQUE_82:
608 emm_cmd[2] = ep->emm[0]; // 0x82
609 break;
610
611 case BULCRYPT_EMM_UNIQUE_8a: // Polaris equivallent of 0x82
612 emm_cmd[2] = 0x82;
613 emm_cmd[3] = 0x0b;
614 break;
615
616 case BULCRYPT_EMM_SHARED_84:
617 emm_cmd[2] = ep->emm[0]; // 0x84
618 emm_cmd[3] = ep->emm[5]; // 0x0b
619 break;
620
621 case BULCRYPT_EMM_GLOBAL_85:
622 case BULCRYPT_EMM_GLOBAL_8b: // Polaris 0x85 equivallent of 0x85
623 memcpy(emm_cmd, cmd_emm2, sizeof(cmd_emm2));
624 emm_cmd[2] = ep->emm[5]; // 0xXX (Last bytes of the serial)
625 emm_cmd[3] = ep->emm[6]; // 0x0b
626 break;
627 }
628
629 // Write emm
630 write_cmd(emm_cmd, emm_cmd + 5);
631 if(cta_lr != 2 || cta_res[0] != 0x90 || (cta_res[1] != 0x00 && cta_res[1] != 0x0a && cta_res[1] != 0x12))
632 {
633 rdr_log(reader, "(emm_cmd) Unexpected card answer: %s",
634 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
635 return ERROR;
636 }
637
638 // V2 answers of 82 EMM
639 if(cta_res[0] == 0x90 && cta_res[1] == 0x12)
640 {
641 write_cmd(cmd_card_v2_key2, NULL);
642 if(cta_res[18] == 0x90 && cta_res[19] == 0x12)
643 {
644 write_cmd(cmd_card_v2_key2, NULL);
645 }
646 }
647
648 if(ep->emm[0] == BULCRYPT_EMM_UNIQUE_82 && cta_res[0] == 0x90 && (cta_res[1] == 0x0a || cta_res[1] == 0x00))
649 {
650 rdr_log(reader, "Your subscription data was updated.");
651 add_job(reader->client, ACTION_READER_CARDINFO, NULL, 0);
652 }
653
654 return OK;
655 }
656
657 static char *dec2bin_str(unsigned int d, char *s)
658 {
659 unsigned int i, r = 8;
660 memset(s, 0, 9);
661 for(i = 1; i < 256; i <<= 1)
662 { s[--r] = (d & i) == i ? '+' : '-'; }
663 return s;
664 }
665
666 static int32_t bulcrypt_card_info(struct s_reader *reader)
667 {
668 char tmp[512];
669 time_t last_upd_ts, subs_end_ts;
670 struct tm tm;
671 def_resp
672
673 rdr_log(reader, "Reading subscription info.");
674
675 cs_clear_entitlement(reader);
676
677 write_cmd(cmd_sub_info1, NULL);
678 write_cmd(cmd_sub_info2, NULL);
679
680 if(cta_lr < 45)
681 {
682 rdr_log(reader, "(info_cmd) Unexpected card answer: %s",
683 cs_hexdump(1, cta_res, cta_lr, tmp, sizeof(tmp)));
684 return ERROR;
685 }
686
687 // Response contains:
688 // 13 29 0B
689 // 4F 8F 00 E9 - Unix ts set by UNIQUE_EMM_82
690 // 3C 65 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 BF
691 // 3C 84 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 BF
692 // 90 2B
693
694 last_upd_ts = b2i(4, cta_res + 3);
695 subs_end_ts = last_upd_ts + (31 * 86400); // *FIXME* this is just a guess
696
697 reader->card_valid_to = subs_end_ts;
698
699 gmtime_r(&last_upd_ts, &tm);
700 memset(tmp, 0, sizeof(tmp));
701 strftime(tmp, sizeof(tmp), "%Y-%m-%d %H:%M:%S %Z", &tm);
702 rdr_log(reader, "Subscription data last update : %s", tmp);
703
704 gmtime_r(&subs_end_ts, &tm);
705 memset(tmp, 0, sizeof(tmp));
706 strftime(tmp, sizeof(tmp), "%Y-%m-%d %H:%M:%S %Z", &tm);
707 rdr_log(reader, "Subscription should be active to : %s", tmp);
708
709 unsigned int subs1 = b2i(2, cta_res + 3 + 4 + 16);
710 unsigned int subs2 = b2i(2, cta_res + 3 + 4 + 16 + 18);
711
712 if(subs1 == 0xffff)
713 {
714 rdr_log(reader, "No active subscriptions (0x%04x, 0x%04x)", subs1, subs2);
715 }
716 else
717 {
718 unsigned int i;
719 rdr_log(reader, "Subscription data 1 (0x%04x): %s",
720 subs1, dec2bin_str(subs1, tmp));
721 rdr_log(reader, "Subscription data 2 (0x%04x): %s",
722 subs2, dec2bin_str(subs2, tmp));
723
724 // Configure your tiers to get subscription packets name resolution
725 // # Example oscam.tiers file
726 // 5581:0001|Economic
727 // 5581:0002|Standard
728 // 5581:0004|Premium
729 // 5581:0008|HBO
730 // 5581:0010|Cinemax
731 // 5581:0020|Unknown Package 20
732 // 5581:0040|Film Plus - Sport Plus HD & Hobby TV HD
733 // 5581:0080|Unknown Package 80
734 for(i = 1; i < 256; i <<= 1)
735 {
736 if((subs1 & i) == i)
737 {
738 cs_add_entitlement(reader, 0x4AEE,
739 0, /* provid */
740 i, /* id */
741 0, /* class */
742 last_upd_ts, /* start_ts */
743 subs_end_ts, /* end_ts */
744 4, /* type: Tier */
745 1 /* add */
746 );
747 cs_add_entitlement(reader, 0x5581,
748 0, /* provid */
749 i, /* id */
750 0, /* class */
751 last_upd_ts, /* start_ts */
752 subs_end_ts, /* end_ts */
753 4, /* type: Tier */
754 1 /* add */
755 );
756 get_tiername(i, 0x4aee, tmp);
757 if(tmp[0] == 0x00)
758 { get_tiername(i, 0x5581, tmp); }
759 rdr_log(reader, "Package %02x is active: %s", i, tmp);
760 }
761 }
762 }
763
764 rdr_log(reader, "End subscription info.");
765 return OK;
766 }
767
768 const struct s_cardsystem reader_bulcrypt =
769 {
770 .desc = "bulcrypt",
771 .caids = (uint16_t[]){ 0x5581, 0x4AEE, 0 },
772 .do_emm = bulcrypt_do_emm,
773 .do_ecm = bulcrypt_do_ecm,
774 .card_info = bulcrypt_card_info,
775 .card_init = bulcrypt_card_init,
776 .get_emm_type = bulcrypt_get_emm_type,
777 .get_emm_filter = bulcrypt_get_emm_filter,
778 };
779
780 #endif
Open Source Conditional Access Modul