OSX/sec/Security/SecIdentity.c

   1 /*
   2  * Copyright (c) 2002-2004,2007-2008,2010,2012-2017 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  *  SecIdentity.c - CoreFoundation based object containing a
  26  *  private key, certificate tuple.
  27  */
  28
  29
  30 #include <Security/SecIdentity.h>
  31
  32 #include <CoreFoundation/CFRuntime.h>
  33 #include <CoreFoundation/CFString.h>
  34 #include <Security/SecCertificate.h>
  35 #include <Security/SecKey.h>
  36 #include <pthread.h>
  37 #include "SecIdentityPriv.h"
  38 #include <Security/SecInternal.h>
  39 #include <utilities/SecCFWrappers.h>
  40
  41 struct __SecIdentity {
  42     CFRuntimeBase               _base;
  43         SecCertificateRef       _certificate;
  44         SecKeyRef                       _privateKey;
  45 };
  46
  47 CFGiblisWithHashFor(SecIdentity)
  48
  49 /* Static functions. */
  50 static CFStringRef SecIdentityCopyFormatDescription(CFTypeRef cf, CFDictionaryRef formatOptions) {
  51     SecIdentityRef identity = (SecIdentityRef)cf;
  52     return CFStringCreateWithFormat(kCFAllocatorDefault, NULL,
  53         CFSTR("<SecIdentityRef: %p>"), identity);
  54 }
  55
  56 static void SecIdentityDestroy(CFTypeRef cf) {
  57     SecIdentityRef identity = (SecIdentityRef)cf;
  58         CFReleaseNull(identity->_certificate);
  59         CFReleaseNull(identity->_privateKey);
  60 }
  61
  62 static Boolean SecIdentityCompare(CFTypeRef cf1, CFTypeRef cf2) {
  63     SecIdentityRef identity1 = (SecIdentityRef)cf1;
  64     SecIdentityRef identity2 = (SecIdentityRef)cf2;
  65     if (identity1 == identity2)
  66         return true;
  67     if (!identity2)
  68         return false;
  69     return CFEqual(identity1->_certificate, identity2->_certificate) &&
  70                 CFEqual(identity1->_privateKey, identity2->_privateKey);
  71 }
  72
  73 /* Hash of identity is hash of certificate plus hash of key. */
  74 static CFHashCode SecIdentityHash(CFTypeRef cf) {
  75     SecIdentityRef identity = (SecIdentityRef)cf;
  76         return CFHash(identity->_certificate) + CFHash(identity->_privateKey);
  77 }
  78
  79 OSStatus SecIdentityCopyCertificate(SecIdentityRef identity,
  80         SecCertificateRef *certificateRef) {
  81         *certificateRef = identity->_certificate;
  82         CFRetain(*certificateRef);
  83         return 0;
  84 }
  85
  86 OSStatus SecIdentityCopyPrivateKey(SecIdentityRef identity,
  87         SecKeyRef *privateKeyRef) {
  88         *privateKeyRef = identity->_privateKey;
  89         CFRetain(*privateKeyRef);
  90         return 0;
  91 }
  92
  93 SecIdentityRef SecIdentityCreate(CFAllocatorRef allocator,
  94         SecCertificateRef certificate, SecKeyRef privateKey) {
  95     if (!certificate || CFGetTypeID(certificate) != SecCertificateGetTypeID() ||
  96         !privateKey || CFGetTypeID(privateKey) != SecKeyGetTypeID()) {
  97         return NULL;
  98     }
  99     CFIndex size = sizeof(struct __SecIdentity);
 100     SecIdentityRef result = (SecIdentityRef)_CFRuntimeCreateInstance(
 101                 allocator, SecIdentityGetTypeID(), size - sizeof(CFRuntimeBase), 0);
 102         if (result) {
 103                 CFRetain(certificate);
 104                 CFRetain(privateKey);
 105                 result->_certificate = certificate;
 106                 result->_privateKey = privateKey;
 107     }
 108     return result;
 109 }
 110