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| 1 // Copyright 2013 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 CHROME_ELF_BLACKLIST_BLACKLIST_H_ |
| 6 #define CHROME_ELF_BLACKLIST_BLACKLIST_H_ |
| 7 |
| 8 namespace blacklist { |
| 9 |
| 10 // Max size of the DLL blacklist. |
| 11 const int kTroublesomeDllsMaxCount = 64; |
| 12 |
| 13 // The DLL blacklist. |
| 14 extern const wchar_t* g_troublesome_dlls[kTroublesomeDllsMaxCount]; |
| 15 |
| 16 // Cursor to the current last element in the blacklist. |
| 17 extern int g_troublesome_dlls_cur_index; |
| 18 |
| 19 // The registry path of the blacklist beacon. Exposed here for testing. |
| 20 extern const wchar_t kRegistryBeaconPath[]; |
| 21 |
| 22 // Attempts to create a beacon in the current user's registry hive. |
| 23 // If the beacon already exists or any other error occurs when creating the |
| 24 // beacon, returns false. Otherwise returns true. |
| 25 // The intent of the beacon is to act as an extra failure mode protection |
| 26 // whereby if Chrome for some reason fails to start during blacklist setup, |
| 27 // it will skip blacklisting on the subsequent run. |
| 28 bool CreateBeacon(); |
| 29 |
| 30 // Looks for the beacon that CreateBeacon() creates and attempts to delete it. |
| 31 // Returns true if the beacon was found and deleted. |
| 32 bool ClearBeacon(); |
| 33 |
| 34 // Adds the given dll name to the blacklist. Returns true if the dll name is in |
| 35 // the blacklist when this returns, false on error. Note that this will copy |
| 36 // |dll_name| and will leak it on exit if the string is not subsequently removed |
| 37 // using RemoveDllFromBlacklist. |
| 38 extern "C" bool AddDllToBlacklist(const wchar_t* dll_name); |
| 39 |
| 40 // Removes the given dll name from the blacklist. Returns true if it was |
| 41 // removed, false on error. |
| 42 extern "C" bool RemoveDllFromBlacklist(const wchar_t* dll_name); |
| 43 |
| 44 // Initializes the DLL blacklist in the current process. This should be called |
| 45 // before any undesirable DLLs might be loaded. If |force| is set to true, then |
| 46 // initialization will take place even if a beacon is present. This is useful |
| 47 // for tests. |
| 48 bool Initialize(bool force); |
| 49 |
| 50 } // namespace blacklist |
| 51 |
| 52 #endif // CHROME_ELF_BLACKLIST_BLACKLIST_H_ |
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