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.
5 #ifndef CRYPTO_NSS_UTIL_INTERNAL_H_
6 #define CRYPTO_NSS_UTIL_INTERNAL_H_
12 #include "base/callback.h"
13 #include "base/compiler_specific.h"
14 #include "base/macros.h"
15 #include "crypto/crypto_export.h"
16 #include "crypto/scoped_nss_types.h"
22 // These functions return a type defined in an NSS header, and so cannot be
23 // declared in nss_util.h. Hence, they are declared here.
27 // Opens an NSS software database in folder |path|, with the (potentially)
28 // user-visible description |description|. Returns the slot for the opened
29 // database, or nullptr if the database could not be opened.
30 CRYPTO_EXPORT ScopedPK11Slot OpenSoftwareNSSDB(const base::FilePath& path,
31 const std::string& description);
33 // A helper class that acquires the SECMOD list read lock while the
34 // AutoSECMODListReadLock is in scope.
35 class CRYPTO_EXPORT AutoSECMODListReadLock {
37 AutoSECMODListReadLock();
38 ~AutoSECMODListReadLock();
41 SECMODListLock* lock_;
42 DISALLOW_COPY_AND_ASSIGN(AutoSECMODListReadLock);
45 #if defined(OS_CHROMEOS)
46 // Returns a reference to the system-wide TPM slot if it is loaded. If it is not
47 // loaded and |callback| is non-null, the |callback| will be run once the slot
49 CRYPTO_EXPORT ScopedPK11Slot GetSystemNSSKeySlot(
50 base::OnceCallback<void(ScopedPK11Slot)> callback) WARN_UNUSED_RESULT;
52 // Sets the test system slot to |slot|, which means that |slot| will be exposed
53 // through |GetSystemNSSKeySlot| and |IsTPMTokenReady| will return true.
54 // |InitializeTPMTokenAndSystemSlot|, which triggers the TPM initialization,
55 // does not have to be called if the test system slot is set.
56 // This must must not be called consecutively with a |slot| != nullptr. If
57 // |slot| is nullptr, the test system slot is unset.
58 CRYPTO_EXPORT void SetSystemKeySlotForTesting(ScopedPK11Slot slot);
60 // Injects the given |slot| as a system slot set by the future
61 // |InitializeTPMTokenAndSystemSlot| call.
62 // This must must not be called consecutively with a |slot| != nullptr. If
63 // |slot| is nullptr and the system slot is already initialized to the
64 // previously passed test value, the system slot is unset.
65 CRYPTO_EXPORT void SetSystemKeySlotWithoutInitializingTPMForTesting(
68 // Prepare per-user NSS slot mapping. It is safe to call this function multiple
69 // times. Returns true if the user was added, or false if it already existed.
70 CRYPTO_EXPORT bool InitializeNSSForChromeOSUser(
71 const std::string& username_hash,
72 const base::FilePath& path);
74 // Returns whether TPM for ChromeOS user still needs initialization. If
75 // true is returned, the caller can proceed to initialize TPM slot for the
76 // user, but should call |WillInitializeTPMForChromeOSUser| first.
77 // |InitializeNSSForChromeOSUser| must have been called first.
78 CRYPTO_EXPORT bool ShouldInitializeTPMForChromeOSUser(
79 const std::string& username_hash) WARN_UNUSED_RESULT;
81 // Makes |ShouldInitializeTPMForChromeOSUser| start returning false.
82 // Should be called before starting TPM initialization for the user.
83 // Assumes |InitializeNSSForChromeOSUser| had already been called.
84 CRYPTO_EXPORT void WillInitializeTPMForChromeOSUser(
85 const std::string& username_hash);
87 // Use TPM slot |slot_id| for user. InitializeNSSForChromeOSUser must have been
89 CRYPTO_EXPORT void InitializeTPMForChromeOSUser(
90 const std::string& username_hash,
93 // Use the software slot as the private slot for user.
94 // InitializeNSSForChromeOSUser must have been called first.
95 CRYPTO_EXPORT void InitializePrivateSoftwareSlotForChromeOSUser(
96 const std::string& username_hash);
98 // Returns a reference to the public slot for user.
99 CRYPTO_EXPORT ScopedPK11Slot GetPublicSlotForChromeOSUser(
100 const std::string& username_hash) WARN_UNUSED_RESULT;
102 // Returns the private slot for |username_hash| if it is loaded. If it is not
103 // loaded and |callback| is non-null, the |callback| will be run once the slot
105 CRYPTO_EXPORT ScopedPK11Slot GetPrivateSlotForChromeOSUser(
106 const std::string& username_hash,
107 base::OnceCallback<void(ScopedPK11Slot)> callback) WARN_UNUSED_RESULT;
109 // Closes the NSS DB for |username_hash| that was previously opened by the
110 // *Initialize*ForChromeOSUser functions.
111 CRYPTO_EXPORT void CloseChromeOSUserForTesting(
112 const std::string& username_hash);
114 // Sets the slot which should be used as private slot for the next
115 // |InitializePrivateSoftwareSlotForChromeOSUser| called. This is intended for
116 // simulating a separate private slot in Chrome OS browser tests.
117 // As a sanity check, it is recommended to check that the private slot of the
118 // profile's certificate database is set to |slot| when the profile is
119 // available, because |slot| will be used as private slot for whichever profile
120 // is initialized next.
121 CRYPTO_EXPORT void SetPrivateSoftwareSlotForChromeOSUserForTesting(
122 ScopedPK11Slot slot);
124 // Returns true if chaps is the module to which |slot| is attached.
125 CRYPTO_EXPORT bool IsSlotProvidedByChaps(PK11SlotInfo* slot);
127 #endif // defined(OS_CHROMEOS)
129 // Loads the given module for this NSS session.
130 SECMODModule* LoadNSSModule(const char* name,
131 const char* library_path,
134 // Returns the current NSS error message.
135 std::string GetNSSErrorMessage();
137 } // namespace crypto
139 #endif // CRYPTO_NSS_UTIL_INTERNAL_H_