OSX/libsecurity_keychain/lib/SecPassword.h

   1 /*
   2  * Copyright (c) 2000-2004,2011,2014 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 @header SecPassword
  26         SecPassword implements logic to use the system facilities for acquiring a password,
  27     optionally stored and retrieved from the user's keychain.
  28  */
  29
  30 #include <Security/SecBase.h>
  31 #include <Security/SecKeychainItem.h>
  32 #include <Security/cssmapple.h>
  33
  34 #ifndef _SECURITY_SECPASSWORD_H_
  35 #define _SECURITY_SECPASSWORD_H_
  36
  37 #if defined(__cplusplus)
  38 extern "C" {
  39 #endif
  40
  41 /*!
  42     @abstract Flags to specify SecPasswordAction behavior, as the application steps through the options
  43     Get, just get it.
  44     Get|Set, get it and set it if it wasn't in the keychain; client doesn't verify it before it's stored
  45     Get|Fail, get it and flag that the previously given or stored password is busted.
  46     Get|Set|Fail, same as above but also store it.
  47     New instead of Get toggles between asking for a new passphrase and an existing one.
  48 */
  49 enum {
  50     kSecPasswordGet     = 1<<0, // Get password from keychain or user
  51     kSecPasswordSet     = 1<<1, // Set password (passed in if kSecPasswordGet not set, otherwise from user)
  52     kSecPasswordFail    = 1<<2,  // Wrong password (ignore item in keychain and flag error)
  53     kSecPasswordNew     = 1<<3  // Explicitly get a new passphrase
  54 };
  55
  56 /*!
  57     @function SecGenericPasswordCreate
  58     @abstract Create an SecPassword object be used with SecPasswordAction to query and/or set a password used in the client.
  59                         The keychain list is searched for a generic password with the supplied attributes.  If
  60                         the item is not found, SecPasswordAction will create a new password in the default keychain.
  61                         Otherwise, the existing item is updated.
  62                         searchAttrList and itemAttrList are optional - pass NULL for both of them if you only wish to query the user for a password.
  63             Use CFRelease on the returned SecPasswordRef when it is no longer needed.
  64     @param searchAttrList (in/opt) The list of search attributes for the item.
  65         @param itemAttrList (in/opt) A list of attributes which will be used for item creation.
  66     @param itemRef (out) On return, a pointer to a password reference.  Release this by calling the CFRelease function.
  67  */
  68 OSStatus SecGenericPasswordCreate(SecKeychainAttributeList *searchAttrList, SecKeychainAttributeList *itemAttrList, SecPasswordRef *itemRef) API_UNAVAILABLE(ios, watchos, tvos, bridgeos, iosmac);
  69
  70 /*!
  71     @function SecPasswordAction
  72     @abstract Get the password for a SecPassword, either from the user or the keychain and return it.
  73     Use SecKeychainItemFreeContent to free the data.
  74
  75         @param itemRef An itemRef previously obtained from SecGenericPasswordCreate.
  76     @param message Message to display to the user as a CFString or nil for a default message.
  77         (future extension accepts CFDictionary for other hints, icon, secaccess)
  78     @param flags (in) The mode of operation.  See the flags documentation above.
  79     @param length (out) The length of the buffer pointed to by data.
  80         @param data A pointer to a buffer containing the data to store.
  81
  82  */
  83 OSStatus SecPasswordAction(SecPasswordRef itemRef, CFTypeRef message, UInt32 flags, UInt32 *length, const void **data) API_UNAVAILABLE(ios, watchos, tvos, bridgeos, iosmac);
  84
  85 /*!
  86     @function SecPasswordSetInitialAccess
  87     @abstract Set the initial access ref.  Only used when a password is first added to the keychain.
  88  */
  89 OSStatus SecPasswordSetInitialAccess(SecPasswordRef itemRef, SecAccessRef accessRef) API_UNAVAILABLE(ios, watchos, tvos, bridgeos, iosmac);
  90
  91 #if defined(__cplusplus)
  92 }
  93 #endif
  94
  95 #endif /* !_SECURITY_SECPASSWORD_H_ */