1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CRYPTO_SCOPED_NSS_TYPES_H_ 6 #define CRYPTO_SCOPED_NSS_TYPES_H_ 7 8 #include <keyhi.h> 9 #include <nss.h> 10 #include <pk11pub.h> 11 #include <plarena.h> 12 13 #include <memory> 14 15 namespace crypto { 16 17 template <typename Type, void (*Destroyer)(Type*)> 18 struct NSSDestroyer { 19 void operator()(Type* ptr) const { 20 Destroyer(ptr); 21 } 22 }; 23 24 template <typename Type, void (*Destroyer)(Type*, PRBool), PRBool freeit> 25 struct NSSDestroyer1 { 26 void operator()(Type* ptr) const { 27 Destroyer(ptr, freeit); 28 } 29 }; 30 31 // Define some convenient scopers around NSS pointers. 32 typedef std::unique_ptr< 33 PK11Context, 34 NSSDestroyer1<PK11Context, PK11_DestroyContext, PR_TRUE>> 35 ScopedPK11Context; 36 typedef std::unique_ptr<PK11SlotInfo, NSSDestroyer<PK11SlotInfo, PK11_FreeSlot>> 37 ScopedPK11Slot; 38 typedef std::unique_ptr<PK11SlotList, 39 NSSDestroyer<PK11SlotList, PK11_FreeSlotList>> 40 ScopedPK11SlotList; 41 typedef std::unique_ptr<PK11SymKey, NSSDestroyer<PK11SymKey, PK11_FreeSymKey>> 42 ScopedPK11SymKey; 43 typedef std::unique_ptr<SECKEYPublicKey, 44 NSSDestroyer<SECKEYPublicKey, SECKEY_DestroyPublicKey>> 45 ScopedSECKEYPublicKey; 46 typedef std::unique_ptr< 47 SECKEYPrivateKey, 48 NSSDestroyer<SECKEYPrivateKey, SECKEY_DestroyPrivateKey>> 49 ScopedSECKEYPrivateKey; 50 typedef std::unique_ptr< 51 SECAlgorithmID, 52 NSSDestroyer1<SECAlgorithmID, SECOID_DestroyAlgorithmID, PR_TRUE>> 53 ScopedSECAlgorithmID; 54 typedef std::unique_ptr<SECItem, 55 NSSDestroyer1<SECItem, SECITEM_FreeItem, PR_TRUE>> 56 ScopedSECItem; 57 typedef std::unique_ptr<PLArenaPool, 58 NSSDestroyer1<PLArenaPool, PORT_FreeArena, PR_FALSE>> 59 ScopedPLArenaPool; 60 61 } // namespace crypto 62 63 #endif // CRYPTO_SCOPED_NSS_TYPES_H_ 64
