crypto/scoped_nss_types.h

   1 // Copyright 2012 The Chromium Authors
   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 <cert.h>
   9 #include <certt.h>
  10 #include <keyhi.h>
  11 #include <nss.h>
  12 #include <pk11pub.h>
  13 #include <plarena.h>
  14
  15 #include <memory>
  16
  17 namespace crypto {
  18
  19 template <typename Type, void (*Destroyer)(Type*)>
  20 struct NSSDestroyer {
  21   void operator()(Type* ptr) const { Destroyer(ptr); }
  22 };
  23
  24 template <typename Type, void (*Destroyer)(Type*, PRBool), PRBool freeit>
  25 struct NSSDestroyer1 {
  26   void operator()(Type* ptr) const { Destroyer(ptr, freeit); }
  27 };
  28
  29 // Define some convenient scopers around NSS pointers.
  30 typedef std::unique_ptr<
  31     PK11Context,
  32     NSSDestroyer1<PK11Context, PK11_DestroyContext, PR_TRUE>>
  33     ScopedPK11Context;
  34 typedef std::unique_ptr<PK11SlotInfo, NSSDestroyer<PK11SlotInfo, PK11_FreeSlot>>
  35     ScopedPK11Slot;
  36 typedef std::unique_ptr<PK11SlotList,
  37                         NSSDestroyer<PK11SlotList, PK11_FreeSlotList>>
  38     ScopedPK11SlotList;
  39 typedef std::unique_ptr<
  40     SECKEYPublicKeyList,
  41     NSSDestroyer<SECKEYPublicKeyList, SECKEY_DestroyPublicKeyList>>
  42     ScopedSECKEYPublicKeyList;
  43 typedef std::unique_ptr<PK11SymKey, NSSDestroyer<PK11SymKey, PK11_FreeSymKey>>
  44     ScopedPK11SymKey;
  45 typedef std::unique_ptr<SECKEYPublicKey,
  46                         NSSDestroyer<SECKEYPublicKey, SECKEY_DestroyPublicKey>>
  47     ScopedSECKEYPublicKey;
  48 typedef std::unique_ptr<
  49     SECKEYPrivateKey,
  50     NSSDestroyer<SECKEYPrivateKey, SECKEY_DestroyPrivateKey>>
  51     ScopedSECKEYPrivateKey;
  52 typedef std::unique_ptr<
  53     SECAlgorithmID,
  54     NSSDestroyer1<SECAlgorithmID, SECOID_DestroyAlgorithmID, PR_TRUE>>
  55     ScopedSECAlgorithmID;
  56 typedef std::unique_ptr<SECItem,
  57                         NSSDestroyer1<SECItem, SECITEM_FreeItem, PR_TRUE>>
  58     ScopedSECItem;
  59 typedef std::unique_ptr<PLArenaPool,
  60                         NSSDestroyer1<PLArenaPool, PORT_FreeArena, PR_FALSE>>
  61     ScopedPLArenaPool;
  62 typedef std::unique_ptr<
  63     CERTSubjectPublicKeyInfo,
  64     NSSDestroyer<CERTSubjectPublicKeyInfo, SECKEY_DestroySubjectPublicKeyInfo>>
  65     ScopedCERTSubjectPublicKeyInfo;
  66 typedef std::unique_ptr<CERTCertList,
  67                         NSSDestroyer<CERTCertList, CERT_DestroyCertList>>
  68     ScopedCERTCertList;
  69
  70 }  // namespace crypto
  71
  72 #endif  // CRYPTO_SCOPED_NSS_TYPES_H_