… | |
… | |
58 | ASN_CLASS_SHIFT = 6, |
58 | ASN_CLASS_SHIFT = 6, |
59 | |
59 | |
60 | // ASN_APPLICATION SNMP |
60 | // ASN_APPLICATION SNMP |
61 | SNMP_IPADDRESS = 0x00, |
61 | SNMP_IPADDRESS = 0x00, |
62 | SNMP_COUNTER32 = 0x01, |
62 | SNMP_COUNTER32 = 0x01, |
|
|
63 | SNMP_GAUGE32 = 0x02, |
63 | SNMP_UNSIGNED32 = 0x02, |
64 | SNMP_UNSIGNED32 = 0x02, |
64 | SNMP_TIMETICKS = 0x03, |
65 | SNMP_TIMETICKS = 0x03, |
65 | SNMP_OPAQUE = 0x04, |
66 | SNMP_OPAQUE = 0x04, |
66 | SNMP_COUNTER64 = 0x06, |
67 | SNMP_COUNTER64 = 0x06, |
67 | }; |
68 | }; |
… | |
… | |
252 | // get ber-encoded integer (i.e. pack "w") |
253 | // get ber-encoded integer (i.e. pack "w") |
253 | static UV |
254 | static UV |
254 | get_w (void) |
255 | get_w (void) |
255 | { |
256 | { |
256 | UV res = 0; |
257 | UV res = 0; |
|
|
258 | U8 c = get_u8 (); |
|
|
259 | |
|
|
260 | if (expect_false (c == 0x80)) |
|
|
261 | error ("illegal BER padding (X.690 8.1.2.4.2, 8.19.2)"); |
257 | |
262 | |
258 | for (;;) |
263 | for (;;) |
259 | { |
264 | { |
260 | U8 c = get_u8 (); |
|
|
261 | res = (res << 7) | (c & 0x7f); |
265 | res = (res << 7) | (c & 0x7f); |
262 | |
266 | |
263 | if (!(c & 0x80)) |
267 | if (!(c & 0x80)) |
264 | return res; |
268 | return res; |
|
|
269 | |
|
|
270 | c = get_u8 (); |
265 | } |
271 | } |
266 | } |
272 | } |
267 | |
273 | |
268 | static UV |
274 | static UV |
269 | get_length (void) |
275 | get_length (void) |
… | |
… | |
277 | |
283 | |
278 | switch (cnt) |
284 | switch (cnt) |
279 | { |
285 | { |
280 | case 0: |
286 | case 0: |
281 | error ("indefinite ASN.1 lengths not supported"); |
287 | error ("indefinite ASN.1 lengths not supported"); |
282 | return 0; |
288 | |
|
|
289 | case 0x7f: |
|
|
290 | error ("ASN.1 reserved value in length (X.690 8.1.3.5)"); |
283 | |
291 | |
284 | default: |
292 | default: |
285 | error ("ASN.1 length too long"); |
293 | error ("ASN.1 length too long (only up to 2**64 octets supported)"); |
286 | return 0; |
|
|
287 | |
294 | |
288 | case 8: res = (res << 8) | get_u8 (); |
295 | case 8: res = (res << 8) | get_u8 (); |
289 | case 7: res = (res << 8) | get_u8 (); |
296 | case 7: res = (res << 8) | get_u8 (); |
290 | case 6: res = (res << 8) | get_u8 (); |
297 | case 6: res = (res << 8) | get_u8 (); |
291 | case 5: res = (res << 8) | get_u8 (); |
298 | case 5: res = (res << 8) | get_u8 (); |
… | |
… | |
303 | decode_int (void) |
310 | decode_int (void) |
304 | { |
311 | { |
305 | UV len = get_length (); |
312 | UV len = get_length (); |
306 | |
313 | |
307 | if (!len) |
314 | if (!len) |
308 | { |
|
|
309 | error ("invalid integer length equal to zero"); |
315 | error ("invalid integer length equal to zero (X.690 8.3.1)"); |
310 | return 0; |
|
|
311 | } |
|
|
312 | |
316 | |
313 | U8 *data = get_n (len); |
317 | U8 *data = get_n (len); |
|
|
318 | |
|
|
319 | if (expect_false (len > 1)) |
|
|
320 | { |
|
|
321 | U16 mask = (data [0] << 8) | data [1] & 0xff80; |
|
|
322 | |
|
|
323 | if (expect_false (mask == 0xff80 || mask == 0x0000)) |
|
|
324 | error ("illegal padding in integer (X.690 8.3.2)"); |
|
|
325 | } |
314 | |
326 | |
315 | int negative = data [0] & 0x80; |
327 | int negative = data [0] & 0x80; |
316 | |
328 | |
317 | UV val = negative ? -1 : 0; // copy signbit to all bits |
329 | UV val = negative ? -1 : 0; // copy signbit to all bits |
318 | |
330 | |
… | |
… | |
382 | static char oid[MAX_OID_STRLEN]; // static, becaueds too large for stack |
394 | static char oid[MAX_OID_STRLEN]; // static, becaueds too large for stack |
383 | char *app = oid; |
395 | char *app = oid; |
384 | |
396 | |
385 | if (relative) |
397 | if (relative) |
386 | app = write_uv (app, w); |
398 | app = write_uv (app, w); |
387 | else |
399 | else if (w < 2 * 40) |
388 | { |
400 | { |
389 | app = write_uv (app, (U8)w / 40); |
401 | app = write_uv (app, (U8)w / 40); |
390 | *app++ = '.'; |
402 | *app++ = '.'; |
391 | app = write_uv (app, (U8)w % 40); |
403 | app = write_uv (app, (U8)w % 40); |
|
|
404 | } |
|
|
405 | else |
|
|
406 | { |
|
|
407 | app = write_uv (app, 2); |
|
|
408 | *app++ = '.'; |
|
|
409 | app = write_uv (app, w - 2 * 40); |
392 | } |
410 | } |
393 | |
411 | |
394 | while (cur < end) |
412 | while (cur < end) |
395 | { |
413 | { |
396 | // we assume an oid component is never > 64 digits |
414 | // we assume an oid component is never > 64 digits |
… | |
… | |
453 | int tag = identifier & ASN_TAG_MASK; |
471 | int tag = identifier & ASN_TAG_MASK; |
454 | |
472 | |
455 | if (tag == ASN_TAG_BER) |
473 | if (tag == ASN_TAG_BER) |
456 | tag = get_w (); |
474 | tag = get_w (); |
457 | |
475 | |
458 | if (tag == ASN_TAG_BER) |
|
|
459 | tag = get_w (); |
|
|
460 | |
|
|
461 | if (constructed) |
476 | if (constructed) |
462 | { |
477 | { |
463 | UV len = get_length (); |
478 | UV len = get_length (); |
464 | UV seqend = (cur - buf) + len; |
479 | UV seqend = (cur - buf) + len; |
465 | AV *av = (AV *)sv_2mortal ((SV *)newAV ()); |
480 | AV *av = (AV *)sv_2mortal ((SV *)newAV ()); |
466 | |
481 | |
467 | while (cur < buf + seqend) |
482 | while (cur < buf + seqend) |
468 | av_push (av, decode_ber ()); |
483 | av_push (av, decode_ber ()); |
469 | |
484 | |
470 | if (cur > buf + seqend) |
485 | if (cur > buf + seqend) |
471 | croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend); |
486 | croak ("constructed type %02x length overflow (0x%x 0x%x)\n", identifier, (int)(cur - buf), (int)seqend); |
472 | |
487 | |
473 | res = newRV_inc ((SV *)av); |
488 | res = newRV_inc ((SV *)av); |
474 | } |
489 | } |
475 | else |
490 | else |
476 | switch (profile_lookup (cur_profile, klass, tag)) |
491 | switch (profile_lookup (cur_profile, klass, tag)) |
… | |
… | |
478 | case BER_TYPE_NULL: |
493 | case BER_TYPE_NULL: |
479 | { |
494 | { |
480 | UV len = get_length (); |
495 | UV len = get_length (); |
481 | |
496 | |
482 | if (len) |
497 | if (len) |
483 | croak ("BER_TYPE_NULL value with non-zero length %d encountered", len); |
498 | croak ("BER_TYPE_NULL value with non-zero length %d encountered (X.690 8.8.2)", len); |
484 | |
499 | |
485 | res = &PL_sv_undef; |
500 | res = &PL_sv_undef; |
486 | } |
501 | } |
487 | break; |
502 | break; |
488 | |
503 | |
489 | case BER_TYPE_BOOL: |
504 | case BER_TYPE_BOOL: |
490 | { |
505 | { |
491 | UV len = get_length (); |
506 | UV len = get_length (); |
492 | |
507 | |
493 | if (len != 1) |
508 | if (len != 1) |
494 | croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered", len); |
509 | croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered (X.690 8.2.1)", len); |
495 | |
510 | |
496 | res = newSVcacheint (!!get_u8 ()); |
511 | res = newSVcacheint (!!get_u8 ()); |
497 | } |
512 | } |
498 | break; |
513 | break; |
499 | |
514 | |
… | |
… | |
521 | case BER_TYPE_IPADDRESS: |
536 | case BER_TYPE_IPADDRESS: |
522 | { |
537 | { |
523 | UV len = get_length (); |
538 | UV len = get_length (); |
524 | |
539 | |
525 | if (len != 4) |
540 | if (len != 4) |
526 | croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len); |
541 | croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered (RFC 2578 7.1.5)", len); |
527 | |
542 | |
528 | U8 c1 = get_u8 (); |
543 | U8 c1 = get_u8 (); |
529 | U8 c2 = get_u8 (); |
544 | U8 c2 = get_u8 (); |
530 | U8 c3 = get_u8 (); |
545 | U8 c3 = get_u8 (); |
531 | U8 c4 = get_u8 (); |
546 | U8 c4 = get_u8 (); |
… | |
… | |
566 | strlen_sum (STRLEN l1, STRLEN l2) |
581 | strlen_sum (STRLEN l1, STRLEN l2) |
567 | { |
582 | { |
568 | size_t sum = l1 + l2; |
583 | size_t sum = l1 + l2; |
569 | |
584 | |
570 | if (sum < (size_t)l2 || sum != (size_t)(STRLEN)sum) |
585 | if (sum < (size_t)l2 || sum != (size_t)(STRLEN)sum) |
571 | croak ("JSON::XS: string size overflow"); |
586 | croak ("Convert::BER::XS: string size overflow"); |
572 | |
587 | |
573 | return sum; |
588 | return sum; |
574 | } |
589 | } |
575 | |
590 | |
576 | static void |
591 | static void |
… | |
… | |
1055 | const_iv (BER_TYPE_IPADDRESS) |
1070 | const_iv (BER_TYPE_IPADDRESS) |
1056 | const_iv (BER_TYPE_CROAK) |
1071 | const_iv (BER_TYPE_CROAK) |
1057 | |
1072 | |
1058 | const_iv (SNMP_IPADDRESS) |
1073 | const_iv (SNMP_IPADDRESS) |
1059 | const_iv (SNMP_COUNTER32) |
1074 | const_iv (SNMP_COUNTER32) |
|
|
1075 | const_iv (SNMP_GAUGE32) |
1060 | const_iv (SNMP_UNSIGNED32) |
1076 | const_iv (SNMP_UNSIGNED32) |
1061 | const_iv (SNMP_TIMETICKS) |
1077 | const_iv (SNMP_TIMETICKS) |
1062 | const_iv (SNMP_OPAQUE) |
1078 | const_iv (SNMP_OPAQUE) |
1063 | const_iv (SNMP_COUNTER64) |
1079 | const_iv (SNMP_COUNTER64) |
1064 | }; |
1080 | }; |