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
31namespace Security {
32
33
34//
35// The null credential constant.
36//
37static const CSSM_ACCESS_CREDENTIALS null_credentials = { "" };	// and more nulls
38#if BUG_GCC
39const AccessCredentials &AccessCredentials::null =
40    *static_cast<const AccessCredentials *>(&null_credentials);
41#else
42const 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//
53bool 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//
70void 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//
84AutoCredentials::AutoCredentials(Allocator &alloc) : allocator(alloc)
85{
86	init();
87}
88
89AutoCredentials::AutoCredentials(Allocator &alloc, uint32 nSamples) : allocator(alloc)
90{
91	init();
92	getSample(nSamples - 1);	// extend array to nSamples elements
93}
94
95void AutoCredentials::init()
96{
97	sampleArray = NULL;
98	nSamples = 0;
99}
100
101
102CssmSample &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
113