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1 /*
2 * Copyright (c) 2000-2001,2003-2004,2006,2011,2014 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24
25 //
26 // cssmcred - enhanced PodWrappers and construction aids for ACL credentials
27 //
28 #include <security_cdsa_utilities/cssmcred.h>
29
30
31 namespace Security {
32
33
34 //
35 // The null credential constant.
36 //
37 static const CSSM_ACCESS_CREDENTIALS null_credentials = { "" }; // and more nulls
38 #if BUG_GCC
39 const AccessCredentials &AccessCredentials::null =
40 *static_cast<const AccessCredentials *>(&null_credentials);
41 #else
42 const AccessCredentials &AccessCredentials::null =
43 static_cast<const AccessCredentials &>(null_credentials);
44 #endif
45
46
47 //
48 // Scan a SampleGroup for samples with a given CSSM_SAMPLE_TYPE.
49 // Collect all matching samples into a list (which is cleared to begin with).
50 // Return true if any were found, false if none.
51 // Throw if any of the samples are obviously malformed.
52 //
53 bool SampleGroup::collect(CSSM_SAMPLE_TYPE sampleType, list<CssmSample> &matches) const
54 {
55 for (uint32 n = 0; n < length(); n++) {
56 TypedList sample = (*this)[n];
57 sample.checkProper();
58 if (sample.type() == sampleType) {
59 sample.snip(); // skip sample type
60 matches.push_back(sample);
61 }
62 }
63 return !matches.empty();
64 }
65
66
67 //
68 // AccessCredentials
69 //
70 void AccessCredentials::tag(const char *tagString)
71 {
72 if (tagString == NULL)
73 EntryTag[0] = '\0';
74 else if (strlen(tagString) > CSSM_MODULE_STRING_SIZE)
75 CssmError::throwMe(CSSM_ERRCODE_INVALID_ACL_ENTRY_TAG);
76 else
77 strcpy(EntryTag, tagString);
78 }
79
80
81 //
82 // AutoCredentials self-constructing credentials structure
83 //
84 AutoCredentials::AutoCredentials(Allocator &alloc) : allocator(alloc)
85 {
86 init();
87 }
88
89 AutoCredentials::AutoCredentials(Allocator &alloc, uint32 nSamples) : allocator(alloc)
90 {
91 init();
92 getSample(nSamples - 1); // extend array to nSamples elements
93 }
94
95 void AutoCredentials::init()
96 {
97 sampleArray = NULL;
98 nSamples = 0;
99 }
100
101
102 CssmSample &AutoCredentials::getSample(uint32 n)
103 {
104 if (n >= nSamples) {
105 sampleArray = allocator.alloc<CssmSample>(sampleArray, nSamples = n + 1);
106 Samples.Samples = sampleArray;
107 Samples.NumberOfSamples = nSamples;
108 }
109 return sampleArray[n];
110 }
111
112 } // end namespace Security