Hello,
the seInfo field is defined in libopensc/pkcs15.c as:
{ "seInfo", SC_ASN1_SEQUENCE, SC_ASN1_CONS |
SC_ASN1_TAG_SEQUENCE, SC_ASN1_OPTIONAL, NULL, NULL },
but SC_ASN1_SEQUENCE type is not managed by asn1_decode_entry() in
libopensc/asn1.c
I guess nothing bad happens if the field is not present. Unfortunately
it is present in my card and I have an error:
iso7816.c:302:iso7816_process_fci: processing FCI bytes
iso7816.c:308:iso7816_process_fci: file identifier: 0x5032
iso7816.c:322:iso7816_process_fci: bytes in file: 284
iso7816.c:335:iso7816_process_fci: shareable: no
iso7816.c:355:iso7816_process_fci: type: working EF
iso7816.c:357:iso7816_process_fci: EF structure: 1
card.c:576:sc_select_file: returning with: 0
card.c:398:sc_read_binary: called; 284 bytes at index 0
card.c:398:sc_read_binary: called; 252 bytes at index 0
apdu.c:504:sc_transmit_apdu: called
apdu.c:184:sc_apdu_log:
Outgoing APDU data [ 5 bytes] =====================================
00 B0 00 00 FC .....
======================================================================
apdu.c:184:sc_apdu_log:
Incoming APDU data [ 254 bytes] =====================================
30 82 01 18 02 01 01 80 05 41 64 E8 6C 65 03 02 0........Ad.le..
05 60 30 5F 30 11 02 01 02 04 0C D2 50 00 00 04 .`0_0.......P...
41 64 E8 6C 65 01 01 30 11 02 01 04 04 0C D2 50 Ad.le..0.......P
00 00 04 41 64 E8 6C 65 01 01 30 11 02 01 07 04 ...Ad.le..0.....
0C D2 50 00 00 04 41 64 E8 6C 65 01 01 30 11 02 ..P...Ad.le..0..
01 08 04 0C D2 50 00 00 04 41 64 E8 6C 65 01 01 .....P...Ad.le..
30 11 02 01 09 04 0C D2 50 00 00 04 41 64 E8 6C 0.......P...Ad.l
65 01 01 A2 81 A6 30 17 02 01 01 02 02 02 20 05 e.....0....... .
00 03 02 01 02 06 05 2B 0E 03 02 1A 02 01 10 30 .......+.......0
1B 02 01 02 02 02 02 50 05 00 03 02 01 02 06 09 .......P........
60 86 48 01 65 03 04 02 01 02 01 20 30 1A 02 01 `.H.e...... 0...
03 02 01 06 05 00 03 02 06 40 06 09 2A 86 48 86 [EMAIL PROTECTED]
F7 0D 01 01 05 02 01 12 30 1A 02 01 04 02 01 40 ........0......@
05 00 03 02 06 40 06 09 2A 86 48 86 F7 0D 01 01 [EMAIL PROTECTED]
0B 02 01 22 30 1A 02 01 05 02 01 01 05 00 03 02 ..."0...........
06 40 06 09 2A 86 48 86 F7 0D 01 01 90 00 [EMAIL PROTECTED]
======================================================================
card.c:311:sc_unlock: called
iso7816.c:132:iso7816_read_binary: returning with: 252
card.c:429:sc_read_binary: returning with: 252
card.c:398:sc_read_binary: called; 32 bytes at index 252
apdu.c:504:sc_transmit_apdu: called
apdu.c:184:sc_apdu_log:
Outgoing APDU data [ 5 bytes] =====================================
00 B0 00 FC 20 ....
======================================================================
apdu.c:184:sc_apdu_log:
Incoming APDU data [ 34 bytes] =====================================
01 02 01 02 30 1A 02 01 06 02 01 01 05 00 03 02 ....0...........
02 04 06 09 2A 86 48 86 F7 0D 01 01 01 02 01 1A ....*.H.........
90 00 ..
======================================================================
card.c:311:sc_unlock: called
iso7816.c:132:iso7816_read_binary: returning with: 32
card.c:429:sc_read_binary: returning with: 32
card.c:311:sc_unlock: called
card.c:426:sc_read_binary: returning with: 284
asn1.c:1064:asn1_decode: called, left=284, depth 0
asn1.c:1089:asn1_decode: Looking for 'TokenInfo', tag 0x1000010
asn1.c:888:asn1_decode_entry: decoding 'TokenInfo'
asn1.c:1064:asn1_decode: called, left=280, depth 1
asn1.c:1089:asn1_decode: Looking for 'version', tag 0x2
asn1.c:888:asn1_decode_entry: decoding 'version'
asn1.c:1089:asn1_decode: Looking for 'serialNumber', tag 0x4, OPTIONAL
asn1.c:1105:asn1_decode: not present
asn1.c:1089:asn1_decode: Looking for 'manufacturerID', tag 0xc, OPTIONAL
asn1.c:1105:asn1_decode: not present
asn1.c:1089:asn1_decode: Looking for 'label', tag 0x20000000, OPTIONAL
asn1.c:888:asn1_decode_entry: decoding 'label'
asn1.c:1089:asn1_decode: Looking for 'label-tw', tag 0x21000000, OPTIONAL
asn1.c:1105:asn1_decode: not present
asn1.c:1089:asn1_decode: Looking for 'tokenflags', tag 0x3
asn1.c:888:asn1_decode_entry: decoding 'tokenflags'
asn1.c:1089:asn1_decode: Looking for 'seInfo', tag 0x1000010, OPTIONAL
asn1.c:888:asn1_decode_entry: decoding 'seInfo'
asn1.c:1039:asn1_decode_entry: invalid ASN.1 type: 16
asn1.c:1044:asn1_decode_entry: decoding of ASN.1 object 'TokenInfo'
failed: Invalid ASN.1 object
pkcs15.c:99:sc_pkcs15_parse_tokeninfo: ASN.1 parsing of EF(TokenInfo)
failed: Invalid ASN.1 object
I am not yet an ASN.1 expert :-) so help is very welcome here.
I would first like to skip the optional field to see how far I can go.
Implementing a proper decoding of the field will be done later.
What I did is:
--- libopensc/asn1.c (révision 3040)
+++ libopensc/asn1.c (copie de travail)
@@ -1018,6 +1035,11 @@ static int asn1_decode_entry(sc_context_
if (entry->parm != NULL)
r = callback_func(ctx, entry->arg, obj, objlen, depth);
break;
+ case SC_ASN1_SEQUENCE:
+ if (parm != NULL)
+ r = asn1_decode(ctx, (struct sc_asn1_entry *) parm, obj,
+ objlen, NULL, NULL, 0, depth + 1);
+ break;
default:
sc_error(ctx, "invalid ASN.1 type: %d\n", entry->type);
return SC_ERROR_INVALID_ASN1_OBJECT;
and the code does not crash. But I have no idea if it is a correct to
skip the field or not.
Is my patch harmful?
Thanks
--
Dr. Ludovic Rousseau
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