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b1ab9ed8 | 1 | /* |
d8f41ccd | 2 | * Copyright (c) 2002,2011,2014 Apple Inc. All Rights Reserved. |
b1ab9ed8 A |
3 | * |
4 | * The contents of this file constitute Original Code as defined in and are | |
5 | * subject to the Apple Public Source License Version 1.2 (the 'License'). | |
6 | * You may not use this file except in compliance with the License. Please obtain | |
7 | * a copy of the License at http://www.apple.com/publicsource and read it before | |
8 | * using this file. | |
9 | * | |
10 | * This Original Code and all software distributed under the License are | |
11 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS | |
12 | * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT | |
13 | * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR | |
14 | * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the | |
15 | * specific language governing rights and limitations under the License. | |
16 | */ | |
17 | ||
18 | ||
19 | /* | |
20 | * DecodedItem.cpp - class representing the common portions of NSS-style | |
21 | * certs and CRLs, with extensions parsed and decoded (still in NSS | |
22 | * format). | |
23 | */ | |
24 | ||
25 | #include "DecodedItem.h" | |
26 | #include "cldebugging.h" | |
27 | #include "AppleX509CLSession.h" | |
28 | #include "CSPAttacher.h" | |
29 | #include "CLFieldsCommon.h" | |
30 | #include "clNssUtils.h" | |
31 | #include <Security/cssmapple.h> | |
32 | ||
33 | ||
34 | DecodedItem::DecodedItem( | |
35 | AppleX509CLSession &session) | |
36 | : mState(IS_Empty), | |
37 | mAlloc(session), | |
38 | mSession(session), | |
39 | mDecodedExtensions(mCoder, session) | |
40 | { | |
41 | } | |
42 | ||
43 | DecodedItem::~DecodedItem() | |
44 | { | |
45 | /* nothing for now */ | |
46 | } | |
47 | ||
48 | /* | |
49 | * Search for DecodedExten by AsnOid or "any unknown extension". | |
50 | * Called from getField*() and inferKeyUsage. | |
51 | * Returns NULL if specified extension not found. | |
52 | */ | |
53 | const DecodedExten *DecodedItem::findDecodedExt( | |
54 | const CSSM_OID &extnId, // for known extensions | |
55 | bool unknown, // otherwise | |
56 | uint32 index, | |
57 | uint32 &numFields) const | |
58 | { | |
59 | unsigned dex; | |
60 | const DecodedExten *rtnExt = NULL; | |
61 | unsigned found = 0; | |
62 | ||
63 | for(dex=0; dex<mDecodedExtensions.numExtensions(); dex++) { | |
64 | const DecodedExten *decodedExt = mDecodedExtensions.getExtension(dex); | |
65 | /* | |
66 | * known extensions: OID match AND successful decode (In case | |
67 | * we encountered a known extension which we couldn't | |
68 | * decode and fell back to giving the app an unparsed | |
69 | * BER blob). | |
70 | * unknown extensions: just know that we didn't decode it | |
71 | */ | |
72 | if( ( !unknown && !decodedExt->berEncoded() && | |
73 | (clCompareCssmData(&decodedExt->extnId(), &extnId)) | |
74 | ) || | |
75 | (unknown && decodedExt->berEncoded()) | |
76 | ) { | |
77 | ||
78 | if(found++ == index) { | |
79 | /* the one we want */ | |
80 | rtnExt = decodedExt; | |
81 | } | |
82 | if((rtnExt != NULL) && (index != 0)) { | |
83 | /* only determine numFields on search for first one */ | |
84 | break; | |
85 | } | |
86 | } | |
87 | } | |
88 | if(rtnExt != NULL) { | |
b54c578e | 89 | /* successful return */ |
b1ab9ed8 A |
90 | if(index == 0) { |
91 | numFields = found; | |
92 | } | |
93 | return rtnExt; | |
94 | } | |
95 | else { | |
96 | return NULL; | |
97 | } | |
98 | } | |
99 |