124 lines
3.8 KiB
C
124 lines
3.8 KiB
C
/*
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* Copyright 2004-2020 Sandboxie Holdings, LLC
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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//---------------------------------------------------------------------------
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// Windows File Protection
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//---------------------------------------------------------------------------
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#include "dll.h"
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//---------------------------------------------------------------------------
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// Functions
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//---------------------------------------------------------------------------
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static BOOL Sfc_SfcIsFileProtected(HANDLE RpcHandle, LPCWSTR *FileName);
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static BOOL Sfc_SfcIsKeyProtected(HKEY hKey, LPCWSTR lpSubKey, REGSAM sam);
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static BOOL Sfc_SfcGetNextProtectedFile(HANDLE RpcHandle, void *FileData);
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//---------------------------------------------------------------------------
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typedef BOOL (*P_SfcIsFileProtected)(HANDLE RpcHandle, LPCWSTR *FileName);
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typedef BOOL (*P_SfcIsKeyProtected)(HKEY hKey, LPCWSTR lpSubKey, REGSAM sam);
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typedef BOOL (*P_SfcGetNextProtectedFile)(HANDLE RpcHandle, void *FileData);
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//---------------------------------------------------------------------------
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static P_SfcIsFileProtected __sys_SfcIsFileProtected = NULL;
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static P_SfcIsKeyProtected __sys_SfcIsKeyProtected = NULL;
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static P_SfcGetNextProtectedFile __sys_SfcGetNextProtectedFile = NULL;
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//---------------------------------------------------------------------------
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// Sfc_Init
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//---------------------------------------------------------------------------
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_FX BOOLEAN Sfc_Init(HMODULE module)
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{
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void *SfcIsFileProtected, *SfcIsKeyProtected, *SfcGetNextProtectedFile;
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//
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// intercept SECUR32 entry points
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//
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SfcIsFileProtected = (P_SfcIsFileProtected)
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GetProcAddress(module, "SfcIsFileProtected");
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SfcIsKeyProtected = (P_SfcIsKeyProtected)
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GetProcAddress(module, "SfcIsKeyProtected");
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SfcGetNextProtectedFile = (P_SfcGetNextProtectedFile)
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GetProcAddress(module, "SfcGetNextProtectedFile");
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if (SfcIsFileProtected) {
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SBIEDLL_HOOK(Sfc_,SfcIsFileProtected);
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}
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if (SfcIsKeyProtected) {
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SBIEDLL_HOOK(Sfc_,SfcIsKeyProtected);
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}
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if (SfcGetNextProtectedFile) {
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SBIEDLL_HOOK(Sfc_,SfcGetNextProtectedFile);
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}
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return TRUE;
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}
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//---------------------------------------------------------------------------
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// Sfc_SfcIsFileProtected
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//---------------------------------------------------------------------------
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_FX BOOL Sfc_SfcIsFileProtected(HANDLE RpcHandle, LPCWSTR *FileName)
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{
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SetLastError(ERROR_FILE_NOT_FOUND);
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return FALSE;
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}
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//---------------------------------------------------------------------------
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// Sfc_SfcIsKeyProtected
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//---------------------------------------------------------------------------
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_FX BOOL Sfc_SfcIsKeyProtected(HKEY hKey, LPCWSTR lpSubKey, REGSAM sam)
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{
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SetLastError(ERROR_FILE_NOT_FOUND);
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return FALSE;
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}
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//---------------------------------------------------------------------------
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// Sfc_SfcGetNextProtectedFile
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//---------------------------------------------------------------------------
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_FX BOOL Sfc_SfcGetNextProtectedFile(HANDLE RpcHandle, void *FileData)
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{
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SetLastError(ERROR_NO_MORE_FILES);
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return FALSE;
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}
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