| … | |
… | |
| 252 | // get ber-encoded integer (i.e. pack "w") |
252 | // get ber-encoded integer (i.e. pack "w") |
| 253 | static UV |
253 | static UV |
| 254 | get_w (void) |
254 | get_w (void) |
| 255 | { |
255 | { |
| 256 | UV res = 0; |
256 | UV res = 0; |
|
|
257 | U8 c = get_u8 (); |
|
|
258 | |
|
|
259 | if (expect_false (c == 0x80)) |
|
|
260 | error ("illegal BER padding (X.690 8.1.2.4.2, 8.19.2)"); |
| 257 | |
261 | |
| 258 | for (;;) |
262 | for (;;) |
| 259 | { |
263 | { |
| 260 | U8 c = get_u8 (); |
|
|
| 261 | res = (res << 7) | (c & 0x7f); |
264 | res = (res << 7) | (c & 0x7f); |
| 262 | |
265 | |
| 263 | if (!(c & 0x80)) |
266 | if (!(c & 0x80)) |
| 264 | return res; |
267 | return res; |
|
|
268 | |
|
|
269 | c = get_u8 (); |
| 265 | } |
270 | } |
| 266 | } |
271 | } |
| 267 | |
272 | |
| 268 | static UV |
273 | static UV |
| 269 | get_length (void) |
274 | get_length (void) |
| … | |
… | |
| 277 | |
282 | |
| 278 | switch (cnt) |
283 | switch (cnt) |
| 279 | { |
284 | { |
| 280 | case 0: |
285 | case 0: |
| 281 | error ("indefinite ASN.1 lengths not supported"); |
286 | error ("indefinite ASN.1 lengths not supported"); |
| 282 | return 0; |
287 | |
|
|
288 | case 0x7f: |
|
|
289 | error ("ASN.1 reserved value in length (X.690 8.1.3.5)"); |
| 283 | |
290 | |
| 284 | default: |
291 | default: |
| 285 | error ("ASN.1 length too long"); |
292 | error ("ASN.1 length too long (only up to 2**64 octets supported)"); |
| 286 | return 0; |
|
|
| 287 | |
293 | |
| 288 | case 8: res = (res << 8) | get_u8 (); |
294 | case 8: res = (res << 8) | get_u8 (); |
| 289 | case 7: res = (res << 8) | get_u8 (); |
295 | case 7: res = (res << 8) | get_u8 (); |
| 290 | case 6: res = (res << 8) | get_u8 (); |
296 | case 6: res = (res << 8) | get_u8 (); |
| 291 | case 5: res = (res << 8) | get_u8 (); |
297 | case 5: res = (res << 8) | get_u8 (); |
| … | |
… | |
| 303 | decode_int (void) |
309 | decode_int (void) |
| 304 | { |
310 | { |
| 305 | UV len = get_length (); |
311 | UV len = get_length (); |
| 306 | |
312 | |
| 307 | if (!len) |
313 | if (!len) |
| 308 | { |
|
|
| 309 | error ("invalid integer length equal to zero"); |
314 | error ("invalid integer length equal to zero (X.690 8.3.1)"); |
| 310 | return 0; |
|
|
| 311 | } |
|
|
| 312 | |
315 | |
| 313 | U8 *data = get_n (len); |
316 | U8 *data = get_n (len); |
|
|
317 | |
|
|
318 | if (expect_false (len > 1)) |
|
|
319 | { |
|
|
320 | U16 mask = (data [0] << 8) | data [1] & 0xff80; |
|
|
321 | |
|
|
322 | if (expect_false (mask == 0xff80 || mask == 0x0000)) |
|
|
323 | error ("illegal padding in integer (X.690 8.3.2)"); |
|
|
324 | } |
| 314 | |
325 | |
| 315 | int negative = data [0] & 0x80; |
326 | int negative = data [0] & 0x80; |
| 316 | |
327 | |
| 317 | UV val = negative ? -1 : 0; // copy signbit to all bits |
328 | UV val = negative ? -1 : 0; // copy signbit to all bits |
| 318 | |
329 | |
| … | |
… | |
| 382 | static char oid[MAX_OID_STRLEN]; // static, becaueds too large for stack |
393 | static char oid[MAX_OID_STRLEN]; // static, becaueds too large for stack |
| 383 | char *app = oid; |
394 | char *app = oid; |
| 384 | |
395 | |
| 385 | if (relative) |
396 | if (relative) |
| 386 | app = write_uv (app, w); |
397 | app = write_uv (app, w); |
| 387 | else |
398 | else if (w < 2 * 40) |
| 388 | { |
399 | { |
| 389 | app = write_uv (app, (U8)w / 40); |
400 | app = write_uv (app, (U8)w / 40); |
| 390 | *app++ = '.'; |
401 | *app++ = '.'; |
| 391 | app = write_uv (app, (U8)w % 40); |
402 | app = write_uv (app, (U8)w % 40); |
|
|
403 | } |
|
|
404 | else |
|
|
405 | { |
|
|
406 | app = write_uv (app, 2); |
|
|
407 | *app++ = '.'; |
|
|
408 | app = write_uv (app, w - 2 * 40); |
| 392 | } |
409 | } |
| 393 | |
410 | |
| 394 | while (cur < end) |
411 | while (cur < end) |
| 395 | { |
412 | { |
| 396 | // we assume an oid component is never > 64 digits |
413 | // we assume an oid component is never > 64 digits |
| … | |
… | |
| 453 | int tag = identifier & ASN_TAG_MASK; |
470 | int tag = identifier & ASN_TAG_MASK; |
| 454 | |
471 | |
| 455 | if (tag == ASN_TAG_BER) |
472 | if (tag == ASN_TAG_BER) |
| 456 | tag = get_w (); |
473 | tag = get_w (); |
| 457 | |
474 | |
| 458 | if (tag == ASN_TAG_BER) |
|
|
| 459 | tag = get_w (); |
|
|
| 460 | |
|
|
| 461 | if (constructed) |
475 | if (constructed) |
| 462 | { |
476 | { |
| 463 | UV len = get_length (); |
477 | UV len = get_length (); |
| 464 | UV seqend = (cur - buf) + len; |
478 | UV seqend = (cur - buf) + len; |
| 465 | AV *av = (AV *)sv_2mortal ((SV *)newAV ()); |
479 | AV *av = (AV *)sv_2mortal ((SV *)newAV ()); |
| 466 | |
480 | |
| 467 | while (cur < buf + seqend) |
481 | while (cur < buf + seqend) |
| 468 | av_push (av, decode_ber ()); |
482 | av_push (av, decode_ber ()); |
| 469 | |
483 | |
| 470 | if (cur > buf + seqend) |
484 | if (cur > buf + seqend) |
| 471 | croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend); |
485 | croak ("constructed type %02x length overflow (0x%x 0x%x)\n", identifier, (int)(cur - buf), (int)seqend); |
| 472 | |
486 | |
| 473 | res = newRV_inc ((SV *)av); |
487 | res = newRV_inc ((SV *)av); |
| 474 | } |
488 | } |
| 475 | else |
489 | else |
| 476 | switch (profile_lookup (cur_profile, klass, tag)) |
490 | switch (profile_lookup (cur_profile, klass, tag)) |
| … | |
… | |
| 478 | case BER_TYPE_NULL: |
492 | case BER_TYPE_NULL: |
| 479 | { |
493 | { |
| 480 | UV len = get_length (); |
494 | UV len = get_length (); |
| 481 | |
495 | |
| 482 | if (len) |
496 | if (len) |
| 483 | croak ("BER_TYPE_NULL value with non-zero length %d encountered", len); |
497 | croak ("BER_TYPE_NULL value with non-zero length %d encountered (X.690 8.8.2)", len); |
| 484 | |
498 | |
| 485 | res = &PL_sv_undef; |
499 | res = &PL_sv_undef; |
| 486 | } |
500 | } |
| 487 | break; |
501 | break; |
| 488 | |
502 | |
| 489 | case BER_TYPE_BOOL: |
503 | case BER_TYPE_BOOL: |
| 490 | { |
504 | { |
| 491 | UV len = get_length (); |
505 | UV len = get_length (); |
| 492 | |
506 | |
| 493 | if (len != 1) |
507 | if (len != 1) |
| 494 | croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered", len); |
508 | croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered (X.690 8.2.1)", len); |
| 495 | |
509 | |
| 496 | res = newSVcacheint (!!get_u8 ()); |
510 | res = newSVcacheint (!!get_u8 ()); |
| 497 | } |
511 | } |
| 498 | break; |
512 | break; |
| 499 | |
513 | |
| … | |
… | |
| 521 | case BER_TYPE_IPADDRESS: |
535 | case BER_TYPE_IPADDRESS: |
| 522 | { |
536 | { |
| 523 | UV len = get_length (); |
537 | UV len = get_length (); |
| 524 | |
538 | |
| 525 | if (len != 4) |
539 | if (len != 4) |
| 526 | croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len); |
540 | croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered (RFC 2578 7.1.5)", len); |
| 527 | |
541 | |
| 528 | U8 c1 = get_u8 (); |
542 | U8 c1 = get_u8 (); |
| 529 | U8 c2 = get_u8 (); |
543 | U8 c2 = get_u8 (); |
| 530 | U8 c3 = get_u8 (); |
544 | U8 c3 = get_u8 (); |
| 531 | U8 c4 = get_u8 (); |
545 | U8 c4 = get_u8 (); |
| … | |
… | |
| 566 | strlen_sum (STRLEN l1, STRLEN l2) |
580 | strlen_sum (STRLEN l1, STRLEN l2) |
| 567 | { |
581 | { |
| 568 | size_t sum = l1 + l2; |
582 | size_t sum = l1 + l2; |
| 569 | |
583 | |
| 570 | if (sum < (size_t)l2 || sum != (size_t)(STRLEN)sum) |
584 | if (sum < (size_t)l2 || sum != (size_t)(STRLEN)sum) |
| 571 | croak ("JSON::XS: string size overflow"); |
585 | croak ("Convert::BER::XS: string size overflow"); |
| 572 | |
586 | |
| 573 | return sum; |
587 | return sum; |
| 574 | } |
588 | } |
| 575 | |
589 | |
| 576 | static void |
590 | static void |
| … | |
… | |
| 925 | put_length (0); |
939 | put_length (0); |
| 926 | break; |
940 | break; |
| 927 | |
941 | |
| 928 | case BER_TYPE_BOOL: |
942 | case BER_TYPE_BOOL: |
| 929 | put_length (1); |
943 | put_length (1); |
| 930 | *cur++ = SvTRUE (data) ? 0xff : 0x00; |
944 | *cur++ = SvTRUE (data) ? 0xff : 0x00; // 0xff = DER/CER |
| 931 | break; |
945 | break; |
| 932 | |
946 | |
| 933 | case BER_TYPE_OID: |
947 | case BER_TYPE_OID: |
| 934 | encode_oid (data, 0); |
948 | encode_oid (data, 0); |
| 935 | break; |
949 | break; |
