OSX/sec/securityd/SecKeybagSupport.h

   1 /*
   2  * Copyright (c) 2013-2014 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  @header SecKeybagSupport.h - The thing that does the stuff with the gibli.
  26  */
  27
  28 #ifndef _SECURITYD_SECKEYBAGSUPPORT_H_
  29 #define _SECURITYD_SECKEYBAGSUPPORT_H_
  30
  31 #include <CoreFoundation/CoreFoundation.h>
  32 #include <utilities/SecAKSWrappers.h>
  33 #include <libaks_acl_cf_keys.h>
  34
  35 #ifndef USE_KEYSTORE
  36 #define USE_KEYSTORE TARGET_HAS_KEYSTORE
  37 #endif
  38
  39 #if USE_KEYSTORE
  40 #include <Kernel/IOKit/crypto/AppleKeyStoreDefs.h>
  41 #include <Security/SecAccessControlPriv.h>
  42 #endif /* USE_KEYSTORE */
  43
  44 __BEGIN_DECLS
  45
  46 #if !USE_KEYSTORE
  47 /* TODO: this needs to be available in the sim! */
  48 typedef int32_t keyclass_t;
  49 typedef int32_t key_handle_t;
  50 enum key_classes {
  51     key_class_ak = 6,
  52     key_class_ck,
  53     key_class_dk,
  54     key_class_aku,
  55     key_class_cku,
  56     key_class_dku,
  57     key_class_akpu
  58 };
  59 #endif /* !USE_KEYSTORE */
  60
  61 /* KEYBAG_NONE is private to security and have special meaning.
  62  They should not collide with AppleKeyStore constants, but are only referenced
  63  in here.
  64  */
  65 #define KEYBAG_NONE (-1)   /* Set q_keybag to KEYBAG_NONE to obtain cleartext data. */
  66 #define KEYBAG_DEVICE (g_keychain_keybag) /* actual keybag used to encrypt items */
  67 extern keybag_handle_t g_keychain_keybag;
  68
  69 bool use_hwaes(void);
  70 bool ks_crypt(CFTypeRef operation, keybag_handle_t keybag,
  71               keyclass_t keyclass, uint32_t textLength, const uint8_t *source, keyclass_t *actual_class,
  72               CFMutableDataRef dest, CFErrorRef *error);
  73 #if USE_KEYSTORE
  74 bool ks_encrypt_acl(keybag_handle_t keybag, keyclass_t keyclass, uint32_t textLength, const uint8_t *source,
  75                   CFMutableDataRef dest, CFDataRef auth_data, CFDataRef acm_context,
  76                   SecAccessControlRef access_control, CFErrorRef *error);
  77 bool ks_decrypt_acl(aks_ref_key_t ref_key, CFDataRef encrypted_data, CFMutableDataRef dest,
  78                     CFDataRef acm_context, CFDataRef caller_access_groups,
  79                     SecAccessControlRef access_control, CFErrorRef *error);
  80 bool ks_delete_acl(aks_ref_key_t ref_key, CFDataRef encrypted_data,
  81                    CFDataRef acm_context, CFDataRef caller_access_groups,
  82                    SecAccessControlRef access_control, CFErrorRef *error);
  83 const void* ks_ref_key_get_external_data(keybag_handle_t keybag, CFDataRef key_data,
  84                                          aks_ref_key_t *ref_key, size_t *external_data_len, CFErrorRef *error);
  85 bool ks_separate_data_and_key(CFDictionaryRef blob_dict, CFDataRef *ed_data, CFDataRef *key_data);
  86 #endif
  87 bool ks_open_keybag(CFDataRef keybag, CFDataRef password, keybag_handle_t *handle, CFErrorRef *error);
  88 bool ks_close_keybag(keybag_handle_t keybag, CFErrorRef *error);
  89
  90 __END_DECLS
  91
  92 #endif /* _SECURITYD_SECKEYBAGSUPPORT_H_ */