Leaked source code of windows server 2003
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//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) Microsoft Corporation
//
// Module Name:
//
// iasmdbtool.cpp
//
// Abstract:
//
// dump the "Properties" table from ias.mdb to a text format
// and also restore ias.mdb from such dump
// saves and restore the reg keys too.
//
//////////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include <string>
#include <shlwapi.h>
#include "datastore2.h"
using namespace std;
//////////////////////////////////////////////////////////////////////////////
HRESULT IASExpandString(const wchar_t* pInputString, wchar_t** ppOutputString);
//////////////////////////////////////////////////////////////////////////////
#ifdef DEBUG
#define CHECK_CALL_HRES(expr) \
hres = expr; \
if (FAILED(hres)) \
{ \
wprintf(L"### %S returned 0x%X ###\n", ## #expr, hres); \
return hres; \
}
#define CHECK_CALL_HRES_NO_RETURN(expr) \
hres = expr; \
if (FAILED(hres)) \
{ \
wprintf(L"### %S returned 0x%X ###\n", ## #expr, hres); \
}
#define CHECK_CALL_HRES_BREAK(expr) \
hres = expr; \
if (FAILED(hres)) \
{ \
wprintf(L"### %S returned 0x%X ###\n", ## #expr, hres); \
break; \
}
#else //no printf, only the error code return if needed
#define CHECK_CALL_HRES(expr) \
hres = expr; \
if (FAILED(hres)) \
{ \
return hres; \
}
#define CHECK_CALL_HRES_NO_RETURN(expr) \
hres = expr;
#define CHECK_CALL_HRES_BREAK(expr) \
hres = expr; \
if (FAILED(hres)) break;
#endif //DEBUG
#define celems(_x) (sizeof(_x) / sizeof(_x[0]))
#ifdef DBG
#define IgnoreVariable(v) { (v) = (v); }
#else
#define IgnoreVariable(v)
#endif
namespace
{
const int SIZELINEMAX = 512;
const int SIZE_LONG_MAX = 33;
// Number of files generated
// here one: backup.mdb
const int MAX_FILES = 1;
const int EXTRA_CHAR_SPACE = 32;
// file order
const int BACKUP_NB = 0;
const int BINARY_NB = 100;
// that's a lot
const int DECOMPRESS_FACTOR = 100;
const int FILE_BUFFER_SIZE = 1024;
struct IASKEY
{
const wchar_t* c_wcKey;
const wchar_t* c_wcValue;
DWORD c_dwType;
} IAS_Key_Struct;
IASKEY c_wcKEYS[] =
{
{
L"SYSTEM\\CurrentControlSet\\Services\\IAS\\Parameters",
L"Allow SNMP Set",
REG_DWORD
},
{
L"SYSTEM\\CurrentControlSet\\Services\\RasMan\\PPP\\ControlProtocols\\BuiltIn",
L"DefaultDomain",
REG_SZ
},
{
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Parameters\\AccountLockout",
L"MaxDenials",
REG_DWORD
},
{
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Parameters\\AccountLockout",
L"ResetTime (mins)",
REG_DWORD
},
{
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Policy",
L"Allow LM Authentication",
REG_DWORD
},
{
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Policy",
L"Default User Identity",
REG_SZ
},
{
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Policy",
L"User Identity Attribute",
REG_DWORD
},
{
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Policy",
L"Override User-Name",
REG_DWORD
},
{
L"SYSTEM\\CurrentControlSet\\Services\\IAS\\Parameters",
L"Ping User-Name",
REG_SZ
},
};
const wchar_t c_wcKEYS_FILE[] = L"%TEMP%\\";
#ifdef _WIN64
const wchar_t c_wcIAS_MDB_FILE_NAME[] =
L"%SystemRoot%\\SysWow64\\ias\\ias.mdb";
const wchar_t c_wcIAS_OLD[] = L"%SystemRoot%\\SysWow64\\ias\\iasold.mdb";
#else
const wchar_t c_wcIAS_MDB_FILE_NAME[] =
L"%SystemRoot%\\System32\\ias\\ias.mdb";
const wchar_t c_wcIAS_OLD[] = L"%SystemRoot%\\System32\\ias\\iasold.mdb";
#endif
const wchar_t c_wcFILE_BACKUP[] = L"%TEMP%\\Backup.mdb";
const wchar_t c_wcSELECT_PROPERTIES_INTO[] =
L"SELECT * "
L"INTO Properties IN "
L"\"%TEMP%\\Backup.mdb\" "
L"FROM Properties;";
const wchar_t c_wcSELECT_OBJECTS_INTO[] =
L"SELECT * "
L"INTO Objects IN "
L"\"%TEMP%\\Backup.mdb\" "
L"FROM Objects;";
const wchar_t c_wcSELECT_VERSION_INTO[] =
L"SELECT * "
L"INTO Version IN "
L"\"%TEMP%\\Backup.mdb\" "
L"FROM Version;";
}
//////////////////////////////////////////////////////////////////////////////
//
// WideToAnsi
//
// CALLED BY:everywhere
//
// PARAMETERS: lpStr - destination string
// lpWStr - string to convert
// cchStr - size of dest buffer
//
// DESCRIPTION:
// converts unicode lpWStr to ansi lpStr.
// fills in unconvertable chars w/ DPLAY_DEFAULT_CHAR "-"
//
//
// RETURNS: if cchStr is 0, returns the size required to hold the string
// otherwise, returns the number of chars converted
//
//////////////////////////////////////////////////////////////////////////////
int WideToAnsi(char* lpStr,unsigned short* lpWStr, int cchStr)
{
BOOL bDefault;
// use the default code page (CP_ACP)
// -1 indicates WStr must be null terminated
return WideCharToMultiByte(GetConsoleOutputCP(),0,lpWStr,-1,lpStr,cchStr,"-",&bDefault);
}
/////////////////////////////////////////////////////////////////////////////
//
// IASEnableBackupPrivilege
//
/////////////////////////////////////////////////////////////////////////////
HRESULT IASEnableBackupPrivilege()
{
LONG lResult = ERROR_SUCCESS;
HANDLE hToken = NULL;
do
{
if ( ! OpenProcessToken(
GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES,
&hToken
))
{
lResult = ERROR_CAN_NOT_COMPLETE;
break;
}
LUID luidB;
if ( ! LookupPrivilegeValue(NULL, SE_BACKUP_NAME, &luidB))
{
lResult = ERROR_CAN_NOT_COMPLETE;
break;
}
LUID luidR;
if ( ! LookupPrivilegeValue(NULL, SE_RESTORE_NAME, &luidR))
{
lResult = ERROR_CAN_NOT_COMPLETE;
break;
}
TOKEN_PRIVILEGES tp;
tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luidB;
tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if ( ! AdjustTokenPrivileges(
hToken,
FALSE,
&tp,
sizeof(TOKEN_PRIVILEGES),
NULL,
NULL
) )
{
lResult = ERROR_CAN_NOT_COMPLETE;
break;
}
tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luidR;
tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if ( ! AdjustTokenPrivileges(
hToken,
FALSE,
&tp,
sizeof(TOKEN_PRIVILEGES),
NULL,
NULL
) )
{
lResult = ERROR_CAN_NOT_COMPLETE;
break;
}
} while (false);
if ( hToken )
{
CloseHandle(hToken);
}
if ( lResult == ERROR_SUCCESS )
{
return S_OK;
}
else
{
return E_FAIL;
}
}
/////////////////////////////////////////////////////////////////////////////
//
// IASSaveRegKeys
//
/////////////////////////////////////////////////////////////////////////////
HRESULT IASSaveRegKeys()
{
ASSERT(celems(c_wcKEYS) != 0);
////////////////////////////
// Enable backup privilege.
////////////////////////////
HRESULT hres;
CHECK_CALL_HRES (IASEnableBackupPrivilege());
wchar_t* completeFile;
CHECK_CALL_HRES (IASExpandString(c_wcKEYS_FILE, &completeFile));
size_t c_NbKeys = celems(c_wcKEYS);
for ( int i = 0; i < c_NbKeys; ++i )
{
DWORD dwType = 0;
DWORD cbData = SIZELINEMAX / 2;
LPVOID pvData = CoTaskMemAlloc(sizeof(wchar_t) * SIZELINEMAX);
if (!pvData)
{
hres = E_OUTOFMEMORY;
break;
}
DWORD lResult = SHGetValueW(
HKEY_LOCAL_MACHINE,
c_wcKEYS[i].c_wcKey,
c_wcKEYS[i].c_wcValue,
&dwType,
pvData,
&cbData
);
//
// Try to allocate more memory if cbData returned the size needed
//
if ((lResult != ERROR_SUCCESS) && (cbData > SIZELINEMAX))
{
CoTaskMemFree(pvData);
pvData = CoTaskMemAlloc(sizeof(wchar_t) * cbData);
if ( !pvData )
{
hres = E_OUTOFMEMORY;
break;
}
lResult = SHGetValue(
HKEY_LOCAL_MACHINE,
c_wcKEYS[i].c_wcKey,
c_wcKEYS[i].c_wcValue,
&dwType,
pvData,
&cbData
);
if ( lResult != ERROR_SUCCESS )
{
hres = E_OUTOFMEMORY;
CoTaskMemFree(pvData);
break;
}
}
//
// Create the file (in all situations)
//
wstring sFileName(completeFile);
wchar_t buffer[SIZE_LONG_MAX];
_itow(i, buffer, 10); // 10 means base 10
sFileName += buffer;
sFileName += L".txt";
HANDLE hFile = CreateFileW(
sFileName.c_str(),
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL
);
if ( hFile == INVALID_HANDLE_VALUE )
{
hres = E_FAIL;
CoTaskMemFree(pvData);
break;
}
//
// lResult = result of SHGetValue
// and might be an error but not
// a memory problem
//
if ( lResult == ERROR_SUCCESS )
{
//
// Wrong data type
//
if ( dwType != c_wcKEYS[i].c_dwType )
{
hres = E_FAIL;
CoTaskMemFree(pvData);
CloseHandle(hFile);
break;
}
else
{
//
// Save the value to the file
//
BYTE* bBuffer = static_cast<BYTE*>(VirtualAlloc
(
NULL,
(cbData > FILE_BUFFER_SIZE)?
cbData:FILE_BUFFER_SIZE,
MEM_COMMIT,
PAGE_READWRITE
));
if ( !bBuffer )
{
CoTaskMemFree(pvData);
CloseHandle(hFile);
hres = E_FAIL;
break;
}
memset(bBuffer, '\0', (cbData > FILE_BUFFER_SIZE)?
cbData:FILE_BUFFER_SIZE);
if ( REG_SZ == c_wcKEYS[i].c_dwType )
{
wcscpy((wchar_t*)bBuffer, (wchar_t*)pvData);
}
else
{
memcpy(bBuffer, pvData, cbData);
}
CoTaskMemFree(pvData);
DWORD NumberOfBytesWritten;
BOOL bResult = WriteFile(
hFile,
bBuffer,
(cbData > FILE_BUFFER_SIZE)?
cbData:FILE_BUFFER_SIZE,
&NumberOfBytesWritten,
NULL
);
VirtualFree(
bBuffer,
(cbData > FILE_BUFFER_SIZE)?
cbData:FILE_BUFFER_SIZE,
MEM_RELEASE
); // ignore result
CloseHandle(hFile);
if ( bResult )
{
hres = S_OK;
}
else
{
hres = E_FAIL;
break;
}
}
}
else
{
//
// create an empty file
BYTE bBuffer[FILE_BUFFER_SIZE];
memset(bBuffer, '#', (cbData > FILE_BUFFER_SIZE)?
cbData:FILE_BUFFER_SIZE);
DWORD NumberOfBytesWritten;
BOOL bResult = WriteFile(
hFile,
&bBuffer,
FILE_BUFFER_SIZE,
&NumberOfBytesWritten,
NULL
);
CoTaskMemFree(pvData);
CloseHandle(hFile);
if ( bResult == TRUE )
{
hres = S_OK;
}
else
{
hres = E_FAIL;
break;
}
}
}
////////////
// Clean
////////////
CoTaskMemFree(completeFile);
return hres;
}
//////////////////////////////////////////////////////////////////////////////
//
// KeyShouldBeRestored
//
// maps the reg keys to the netsh tokens
/*
L"SYSTEM\\CurrentControlSet\\Services\\IAS\\Parameters",
L"Allow SNMP Set",
server
L"SYSTEM\\CurrentControlSet\\Services\\RasMan\\PPP\\ControlProtocols\\BuiltIn",
L"DefaultDomain",
rap
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Parameters\\AccountLockout",
L"MaxDenials",
server
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Parameters\\AccountLockout",
L"ResetTime (mins)",
server
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Policy",
L"Allow LM Authentication",
rap
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Policy",
L"Default User Identity",
rap
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Policy",
L"User Identity Attribute",
rap
L"SYSTEM\\CurrentControlSet\\Services\\RemoteAccess\\Policy",
L"Override User-Name",
rap
L"SYSTEM\\CurrentControlSet\\Services\\IAS\\Parameters",
L"Ping User-Name",
server
*/
//
//////////////////////////////////////////////////////////////////////////////
bool KeyShouldBeRestored(size_t keyIndex, IAS_SHOW_TOKEN_LIST configType)
{
// keyIndex maps to the index of the key in the array of keys
// configType is the token to use.
bool retVal = false;
switch(configType)
{
case CONFIG:
{
// true for everything
retVal = true;
break;
}
case SERVER_SETTINGS:
{
if ( (keyIndex == 0) ||
(keyIndex == 2) ||
(keyIndex == 3) ||
(keyIndex == 8)
)
{
retVal = true;
}
break;
}
case REMOTE_ACCESS_POLICIES:
{
if ( (keyIndex == 1) ||
(keyIndex == 4) ||
(keyIndex == 5) ||
(keyIndex == 6) ||
(keyIndex == 7)
)
{
retVal = true;
}
break;
}
case CONNECTION_REQUEST_POLICIES:
case CLIENTS:
case LOGGING:
default:
{
retVal = false;
break;
}
}
return retVal;
}
//////////////////////////////////////////////////////////////////////////////
//
// IASRestoreRegKeys
//
// if something cannot be restored because of an empty
// backup file (no key saved), that's not an error
//
//////////////////////////////////////////////////////////////////////////////
HRESULT IASRestoreRegKeys(/*in*/ IAS_SHOW_TOKEN_LIST configType)
{
ASSERT(celems(c_wcKEYS) != 0);
////////////////////////////
// Enable backup privilege.
// and sets hres
////////////////////////////
HRESULT hres;
CHECK_CALL_HRES (IASEnableBackupPrivilege());
wchar_t* completeFile;
CHECK_CALL_HRES (IASExpandString(c_wcKEYS_FILE, &completeFile));
size_t c_NbKeys = celems(c_wcKEYS);
for (size_t i = 0; i < c_NbKeys; ++i )
{
if (!KeyShouldBeRestored(i, configType))
{
continue;
}
wstring sFileName(completeFile);
wchar_t buffer[SIZE_LONG_MAX];
DWORD dwDisposition;
_itow(i, buffer, 10); // 10 means base 10
sFileName += buffer;
sFileName += L".txt";
// open the file
HANDLE hFile = CreateFileW(
sFileName.c_str(),
GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL
);
if (INVALID_HANDLE_VALUE == hFile)
{
// maybe some reg keys were not saved in that file.
// for instance Ping User-Name wasn't saved.
continue;
}
// check the type of data expected
LPVOID lpBuffer = NULL;
DWORD SizeToRead;
if (REG_SZ == c_wcKEYS[i].c_dwType)
{
lpBuffer = CoTaskMemAlloc(sizeof(wchar_t) * FILE_BUFFER_SIZE);
SizeToRead = FILE_BUFFER_SIZE;
}
else if (REG_DWORD == c_wcKEYS[i].c_dwType)
{
lpBuffer = CoTaskMemAlloc(sizeof(DWORD));
SizeToRead = sizeof(DWORD);
}
else
{
// unknown
ASSERT(FALSE);
}
if (!lpBuffer)
{
CloseHandle(hFile);
hres = E_OUTOFMEMORY;
break;
}
memset(lpBuffer,'\0',SizeToRead);
// read the file
DWORD NumberOfBytesRead;
BOOL b = ReadFile(
hFile,
lpBuffer,
SizeToRead,
&NumberOfBytesRead,
NULL
); // ignore return value. uses NumberOfBytesRead
// to determine success condition
IgnoreVariable(b);
CloseHandle(hFile);
// check if the file contains ####
if ( NumberOfBytesRead == 0 )
{
// problem
CoTaskMemFree(lpBuffer);
hres = E_FAIL;
break;
}
else
{
BYTE TempBuffer[sizeof(DWORD)];
memset(TempBuffer, '#', sizeof(DWORD));
if (0 == memcmp(lpBuffer, TempBuffer, sizeof(DWORD)))
{
// no key saved, delete existing key if any
HKEY hKeyToDelete = NULL;
if (ERROR_SUCCESS == RegOpenKeyW(
HKEY_LOCAL_MACHINE,
c_wcKEYS[i].c_wcKey,
&hKeyToDelete
))
{
if (ERROR_SUCCESS != RegDeleteValueW
(
hKeyToDelete,
c_wcKEYS[i].c_wcValue
))
{
// delete existing key failed\n");
}
RegCloseKey(hKeyToDelete);
}
//
// else do nothing: key doesn't exist
//
}
else
{
// key saved: restore value
// what if the value is bigger than
// the buffer size?
HKEY hKeyToUpdate;
LONG lResult = RegCreateKeyExW(
HKEY_LOCAL_MACHINE,
c_wcKEYS[i].c_wcKey,
0,
NULL,
REG_OPTION_NON_VOLATILE |
REG_OPTION_BACKUP_RESTORE ,
KEY_ALL_ACCESS,
NULL,
&hKeyToUpdate,
&dwDisposition
);
if (ERROR_SUCCESS != lResult)
{
lResult = RegCreateKeyW(
HKEY_LOCAL_MACHINE,
c_wcKEYS[i].c_wcKey,
&hKeyToUpdate
);
if (ERROR_SUCCESS != lResult)
{
RegCloseKey(hKeyToUpdate);
hres = E_FAIL;
break;
}
}
if (REG_SZ == c_wcKEYS[i].c_dwType)
{
// nb of
NumberOfBytesRead = (
( wcslen((wchar_t*)lpBuffer)
+ 1 // for /0
) * sizeof(wchar_t)
);
};
//
// Key created or key existing
// both can be here (error = break)
//
if (ERROR_SUCCESS != RegSetValueExW(
hKeyToUpdate,
c_wcKEYS[i].c_wcValue,
0,
c_wcKEYS[i].c_dwType,
(BYTE*)lpBuffer,
NumberOfBytesRead
))
{
RegCloseKey(hKeyToUpdate);
hres = E_FAIL;
break;
}
RegCloseKey(hKeyToUpdate);
hres = S_OK;
}
CoTaskMemFree(lpBuffer);
}
}
/////////
// Clean
/////////
CoTaskMemFree(completeFile);
return hres;
}
/////////////////////////////////////////////////////////////////////////////
//
// IASExpandString
//
// Expands strings containing %ENV_VARIABLE%
//
// The output string is allocated only when the function succeed
/////////////////////////////////////////////////////////////////////////////
HRESULT
IASExpandString(const wchar_t* pInputString, /*in/out*/ wchar_t** ppOutputString)
{
_ASSERTE(pInputString);
_ASSERTE(pppOutputString);
HRESULT hres;
*ppOutputString = static_cast<wchar_t*>(CoTaskMemAlloc(
SIZELINEMAX
* sizeof(wchar_t)
));
if ( ! *ppOutputString )
{
hres = E_OUTOFMEMORY;
}
else
{
if ( ExpandEnvironmentStringsForUserW(
NULL,
pInputString,
*ppOutputString,
SIZELINEMAX
)
)
{
hres = S_OK;
}
else
{
CoTaskMemFree(*ppOutputString);
hres = E_FAIL;
}
}
#ifdef DEBUG // DEBUG
wprintf(L"#ExpandString: %s\n", *ppOutputString);
#endif //DEBUG
return hres;
};
/////////////////////////////////////////////////////////////////////////////
//
// DeleteTemporaryFiles()
//
// delete the temporary files if any
//
/////////////////////////////////////////////////////////////////////////////
HRESULT DeleteTemporaryFiles()
{
HRESULT hres;
wchar_t* sz_FileBackup;
CHECK_CALL_HRES (IASExpandString(c_wcFILE_BACKUP,
&sz_FileBackup
)
);
DeleteFile(sz_FileBackup); //return value not checked
CoTaskMemFree(sz_FileBackup);
wchar_t* TempPath;
CHECK_CALL_HRES (IASExpandString(c_wcKEYS_FILE, &TempPath));
int c_NbKeys = celems(c_wcKEYS);
for ( int i = 0; i < c_NbKeys; ++i )
{
wstring sFileName(TempPath);
wchar_t buffer[SIZE_LONG_MAX];
_itow(i, buffer, 10); // 10 means base 10
sFileName += buffer;
sFileName += L".txt";
DeleteFile(sFileName.c_str()); //return value not checked
}
CoTaskMemFree(TempPath);
return hres;
}
/////////////////////////////////////////////////////////////////////////////
//
// IASCompress
//
// Wrapper for RtlCompressBuffer
//
/////////////////////////////////////////////////////////////////////////////
HRESULT IASCompress(
PUCHAR pInputBuffer,
ULONG* pulFileSize,
PUCHAR* ppCompressedBuffer
)
{
ULONG size, ignore;
NTSTATUS status = RtlGetCompressionWorkSpaceSize(
COMPRESSION_FORMAT_LZNT1 | COMPRESSION_ENGINE_MAXIMUM,
&size,
&ignore
);
if (!NT_SUCCESS(status))
{
#ifdef DEBUG
printf("RtlGetCompressionWorkSpaceSize returned 0x%08X.\n", status);
#endif //DEBUG
return E_FAIL;
}
PVOID workSpace;
workSpace = RtlAllocateHeap(
RtlProcessHeap(),
0,
size
);
if ( !workSpace )
{
return E_OUTOFMEMORY;
}
size = *pulFileSize;
// That's a minimum buffer size that can be used
if ( size < FILE_BUFFER_SIZE )
{
size = FILE_BUFFER_SIZE;
}
*ppCompressedBuffer = static_cast<PUCHAR>(RtlAllocateHeap(
RtlProcessHeap(),
0,
size
));
if ( !*ppCompressedBuffer )
{
return E_OUTOFMEMORY;
}
status = RtlCompressBuffer(
COMPRESSION_FORMAT_LZNT1 | COMPRESSION_ENGINE_MAXIMUM,
pInputBuffer,
size,
*ppCompressedBuffer,
size,
0,
&size,
workSpace
);
if (!NT_SUCCESS(status))
{
if (STATUS_BUFFER_TOO_SMALL == status)
{
#ifdef DEBUG
printf("STATUS_BUFFER_TOO_SMALL\n");
printf("RtlCompressBuffer returned 0x%08X.\n", status);
#endif //DEBUG
}
else
{
#ifdef DEBUG
printf("RtlCompressBuffer returned 0x%08X.\n", status);
#endif //DEBUG
}
return E_FAIL;
}
*pulFileSize = size;
RtlFreeHeap(
RtlProcessHeap(),
0,
workSpace
);
return S_OK;
}
/////////////////////////////////////////////////////////////////////////////
//
// IASUnCompress
//
//
/////////////////////////////////////////////////////////////////////////////
HRESULT IASUnCompress(
PUCHAR pInputBuffer,
ULONG* pulFileSize,
PUCHAR* ppDeCompressedBuffer
)
{
ULONG size, ignore;
NTSTATUS status = RtlGetCompressionWorkSpaceSize(
COMPRESSION_FORMAT_LZNT1 | COMPRESSION_ENGINE_MAXIMUM,
&size,
&ignore
);
if ( !NT_SUCCESS(status) )
{
#ifdef DEBUG
printf("RtlGetCompressionWorkSpaceSize returned 0x%08X.\n", status);
#endif //DEBUG
return E_FAIL;
}
size = *pulFileSize;
if( FILE_BUFFER_SIZE >= size)
{
size = FILE_BUFFER_SIZE;
}
*ppDeCompressedBuffer = static_cast<PUCHAR>(RtlAllocateHeap(
RtlProcessHeap(),
0,
size * DECOMPRESS_FACTOR
));
if ( !*ppDeCompressedBuffer )
{
return E_OUTOFMEMORY;
}
ULONG UncompressedSize;
status = RtlDecompressBuffer(
COMPRESSION_FORMAT_LZNT1 | COMPRESSION_ENGINE_MAXIMUM,
*ppDeCompressedBuffer,
size * DECOMPRESS_FACTOR,
pInputBuffer,
*pulFileSize ,
&UncompressedSize
);
if ( !NT_SUCCESS(status) )
{
#ifdef DEBUG
printf("RtlUnCompressBuffer returned 0x%08X.\n", status);
#endif //DEBUG
switch (status)
{
case STATUS_INVALID_PARAMETER:
#ifdef DEBUG
printf("STATUS_INVALID_PARAMETER");
#endif //DEBUG
break;
case STATUS_BAD_COMPRESSION_BUFFER:
#ifdef DEBUG
printf("STATUS_BAD_COMPRESSION_BUFFER ");
printf("size = %d %d",pulFileSize,UncompressedSize);
#endif //DEBUG
break;
case STATUS_UNSUPPORTED_COMPRESSION:
#ifdef DEBUG
printf("STATUS_UNSUPPORTED_COMPRESSION ");
#endif //DEBUG
break;
}
return E_FAIL;
}
*pulFileSize = UncompressedSize;
return S_OK;
}
/////////////////////////////////////////////////////////////////////////////
//
// IASFileToBase64
//
// Compress then encode to Base64
//
// BSTR by Allocated IASFileToBase64, should be freed by the caller
//
/////////////////////////////////////////////////////////////////////////////
HRESULT
IASFileToBase64(const wchar_t* pFileName, /*out*/ BSTR* pOutputBSTR)
{
_ASSERTE(pFileName);
_ASSERTE(pppOutputString);
HRESULT hres;
HANDLE hFileHandle = CreateFileW(
pFileName,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL
);
if ( hFileHandle == INVALID_HANDLE_VALUE )
{
#ifdef DEBUG
wprintf(L"#filename = %s",pFileName);
wprintf(L"### INVALID_HANDLE_VALUE ###\n");
#endif //DEBUG
hres = E_FAIL;
return hres;
}
// safe cast from DWORD to ULONG
ULONG ulFileSize = (ULONG) GetFileSize(
hFileHandle, // file for which to get size
NULL// high-order word of file size
);
if (0xFFFFFFFF == ulFileSize)
{
#ifdef DEBUG
wprintf(L"### GetFileSize Failed ###\n");
#endif //DEBUG
hres = E_FAIL;
return hres;
}
HANDLE hFileMapping = CreateFileMapping(
hFileHandle, // handle to file to map
NULL, // optional security attributes
PAGE_READONLY, // protection for mapping object
0, // high-order 32 bits of object size
0, // low-order 32 bits of object size
NULL // name of file-mapping object
);
if (NULL == hFileMapping)
{
#ifdef DEBUG
wprintf(L"### CreateFileMapping Failed ###\n");
#endif //DEBUG
hres = E_FAIL;
return hres;
}
LPVOID pMemoryFile = MapViewOfFile(
hFileMapping, // file-mapping object to map into
// address space
FILE_MAP_READ, // access mode
0, // high-order 32 bits of file offset
0, // low-order 32 bits of file offset
0 // number of bytes to map
);
if (NULL == pMemoryFile)
{
#ifdef DEBUG
wprintf(L"### MapViewOfFile Failed ###\n");
#endif //DEBUG
hres = E_FAIL;
return hres;
}
/////////////////////////////
// NOW compress
/////////////////////////////
wchar_t* pCompressedBuffer;
CHECK_CALL_HRES (IASCompress((PUCHAR) pMemoryFile,
/*IN OUT*/(ULONG *) &ulFileSize,
/*IN OUT*/(PUCHAR*) &pCompressedBuffer));
/////////////////////
// Encode to Base64
/////////////////////
CHECK_CALL_HRES (ToBase64(
pCompressedBuffer,
(ULONG) ulFileSize,
pOutputBSTR
)
);
/////////////////////////////
// Clean
/////////////////////////////
RtlFreeHeap(
RtlProcessHeap(),
0,
pCompressedBuffer
);
BOOL bResult = UnmapViewOfFile(
pMemoryFile// address where mapped view begins
);
if (FALSE == bResult)
{
#ifdef DEBUG
wprintf(L"### UnmapViewOfFile Failed ###\n");
#endif //DEBUG
hres = E_FAIL;
}
CloseHandle(hFileMapping);
CloseHandle(hFileHandle);
return hres;
}
/////////////////////////////////////////////////////////////////////////////
//
// IASDumpConfig
//
// Dump the configuration to some temporary files, then indidually
// compress then encode them.
// one big string is created from those multiple Base64 strings.
//
// Remarks: IASDumpConfig does a malloc and allocates memory for
// *ppDumpString. The calling function will have to free that memory
//
/////////////////////////////////////////////////////////////////////////////
HRESULT
IASDumpConfig(/*inout*/ wchar_t **ppDumpString, /*inout*/ ULONG *ulSize)
{
_ASSERTE(ppDumpString);
_ASSERTE(ulSize);
HRESULT hres;
///////////////////////////////////////
// delete the temporary files if any
///////////////////////////////////////
CHECK_CALL_HRES (DeleteTemporaryFiles());
////////////////////////////////////////////////////
// Save the Registry keys. that creates many files
////////////////////////////////////////////////////
CHECK_CALL_HRES (IASSaveRegKeys());
//////////////////////
// connect to the DB
//////////////////////
wchar_t* sz_DBPath;
CHECK_CALL_HRES (IASExpandString(c_wcIAS_MDB_FILE_NAME, &sz_DBPath));
CComPtr<IIASNetshJetHelper> JetHelper;
CHECK_CALL_HRES (CoCreateInstance(
__uuidof(CIASNetshJetHelper),
NULL,
CLSCTX_SERVER,
__uuidof(IIASNetshJetHelper),
(PVOID*) &JetHelper
));
CComBSTR DBPath(sz_DBPath);
if ( !DBPath ) { return E_OUTOFMEMORY; }
CHECK_CALL_HRES (JetHelper->OpenJetDatabase(DBPath, TRUE));
//////////////////////////////////////
// Create a new DB named "Backup.mdb"
//////////////////////////////////////
wchar_t* sz_FileBackup;
CHECK_CALL_HRES (IASExpandString(c_wcFILE_BACKUP,
&sz_FileBackup
)
);
CComBSTR BackupDb(sz_FileBackup);
if ( !BackupDb ) { return E_OUTOFMEMORY; }
CHECK_CALL_HRES (JetHelper->CreateJetDatabase(BackupDb));
//////////////////////////////////////////////////////////
// exec the sql statements (to export)
// the content into the temp database
//////////////////////////////////////////////////////////
wchar_t* sz_SelectProperties;
CHECK_CALL_HRES (IASExpandString(c_wcSELECT_PROPERTIES_INTO,
&sz_SelectProperties
)
);
CComBSTR SelectProperties(sz_SelectProperties);
if ( !SelectProperties ) { return E_OUTOFMEMORY; }
CHECK_CALL_HRES (JetHelper->ExecuteSQLCommand(SelectProperties));
wchar_t* sz_SelectObjects;
CHECK_CALL_HRES (IASExpandString(c_wcSELECT_OBJECTS_INTO,
&sz_SelectObjects
)
);
CComBSTR SelectObjects(sz_SelectObjects);
if ( !SelectObjects ) { return E_OUTOFMEMORY; }
CHECK_CALL_HRES (JetHelper->ExecuteSQLCommand(SelectObjects));
wchar_t* sz_SelectVersion;
CHECK_CALL_HRES (IASExpandString(c_wcSELECT_VERSION_INTO,
&sz_SelectVersion
)
);
CComBSTR SelectVersion(sz_SelectVersion);
if ( !SelectVersion ) { return E_OUTOFMEMORY; }
CHECK_CALL_HRES (JetHelper->ExecuteSQLCommand(SelectVersion));
/////////////////////////////////////////////
// transform the file into Base64 BSTR
/////////////////////////////////////////////
BSTR FileBackupBSTR;
CHECK_CALL_HRES (IASFileToBase64(
sz_FileBackup,
&FileBackupBSTR
)
);
int NumberOfKeyFiles = celems(c_wcKEYS);
BSTR pFileKeys[celems(c_wcKEYS)];
wchar_t* sz_FileRegistry;
CHECK_CALL_HRES (IASExpandString(c_wcKEYS_FILE,
&sz_FileRegistry
)
);
for ( int i = 0; i < NumberOfKeyFiles; ++i )
{
wstring sFileName(sz_FileRegistry);
wchar_t buffer[SIZE_LONG_MAX];
_itow(i, buffer, 10); // 10 means base 10
sFileName += buffer;
sFileName += L".txt";
CHECK_CALL_HRES (IASFileToBase64(
sFileName.c_str(),
&pFileKeys[i]
)
);
}
CoTaskMemFree(sz_FileRegistry);
///////////////////////////////////////////////
// alloc the memory for full the Base64 string
///////////////////////////////////////////////
*ulSize = SysStringByteLen(FileBackupBSTR)
+ EXTRA_CHAR_SPACE;
for ( int j = 0; j < NumberOfKeyFiles; ++j )
{
*ulSize += SysStringByteLen(pFileKeys[j]);
*ulSize += 2; // extra characters
}
*ppDumpString = (wchar_t *) calloc(
*ulSize ,
sizeof(wchar_t)
);
//////////////////////////////////////////////////
// copy the different strings into one big string
//////////////////////////////////////////////////
if (*ppDumpString)
{
wcsncpy(
(wchar_t*) *ppDumpString,
(wchar_t*) FileBackupBSTR,
SysStringLen(FileBackupBSTR)
);
for ( int k = 0; k < NumberOfKeyFiles; ++k )
{
wcscat(
(wchar_t*) *ppDumpString,
L"*\\\n"
);
wcsncat(
(wchar_t*) *ppDumpString,
(wchar_t*) pFileKeys[k],
SysStringLen(pFileKeys[k])
);
}
wcscat(
(wchar_t*) *ppDumpString,
L"QWER * QWER\\\n"
);
*ulSize = wcslen(*ppDumpString);
}
else
{
hres = E_OUTOFMEMORY;
#ifdef DEBUG
wprintf(L"### calloc failed ###\n");
#endif //DEBUG
}
///////////////////////////////////////
// delete the temporary files if any
///////////////////////////////////////
CHECK_CALL_HRES (DeleteTemporaryFiles());
/////////////////////////////////////////////
// Clean
/////////////////////////////////////////////
for ( int k = 0; k < NumberOfKeyFiles; ++k )
{
SysFreeString(pFileKeys[k]);
}
CoTaskMemFree(sz_SelectVersion);
CoTaskMemFree(sz_SelectProperties);
CoTaskMemFree(sz_SelectObjects);
CoTaskMemFree(sz_FileBackup);
CoTaskMemFree(sz_DBPath);
SysFreeString(FileBackupBSTR);
CHECK_CALL_HRES (JetHelper->CloseJetDatabase());
return hres;
}
/////////////////////////////////////////////////////////////////////////////
//
// IASSaveToFile
//
// Remark: if a new table has to be saved, an "entry" for that should be
// created in that function to deal with the filemname
//
/////////////////////////////////////////////////////////////////////////////
HRESULT IASSaveToFile(
/* in */ int Index,
/* in */ wchar_t* pContent,
DWORD lSize = 0
)
{
HRESULT hres;
wstring sFileName;
switch (Index)
{
case BACKUP_NB:
{
wchar_t* sz_FileBackup;
CHECK_CALL_HRES (IASExpandString(c_wcIAS_OLD,
&sz_FileBackup
)
);
sFileName = sz_FileBackup;
CoTaskMemFree(sz_FileBackup);
break;
}
///////////
// binary
///////////
default:
{
///////////////////////////////////
// i + BINARY_NB is the parameter
///////////////////////////////////
wchar_t* sz_FileRegistry;
CHECK_CALL_HRES (IASExpandString(c_wcKEYS_FILE,
&sz_FileRegistry
)
);
sFileName = sz_FileRegistry;
wchar_t buffer[SIZE_LONG_MAX];
_itow(Index - BINARY_NB, buffer, 10); // 10 means base 10
sFileName += buffer;
sFileName += L".txt";
CoTaskMemFree(sz_FileRegistry);
break;
}
}
HANDLE hFile = CreateFileW(
sFileName.c_str(),
GENERIC_WRITE,
FILE_SHARE_WRITE | FILE_SHARE_READ,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL
);
if (INVALID_HANDLE_VALUE == hFile)
{
hres = E_FAIL;
}
else
{
DWORD NumberOfBytesWritten;
BOOL bResult = WriteFile(
hFile,
(LPVOID) pContent,
lSize,
&NumberOfBytesWritten,
NULL
);
if (bResult)
{
hres = S_OK;
}
else
{
hres = E_FAIL;
}
CloseHandle(hFile);
}
return hres;
}
/////////////////////////////////////////////////////////////////////////////
// IASRestoreConfig
//
// Clean the DB first, then insert back everything.
/////////////////////////////////////////////////////////////////////////////
HRESULT IASRestoreConfig(
/*in*/ const wchar_t *pRestoreString,
/*in*/ IAS_SHOW_TOKEN_LIST configType
)
{
_ASSERTE(pRestoreString);
bool bCoInitialized = false;
HRESULT hres = CoInitializeEx(NULL, COINIT_MULTITHREADED);
if (FAILED(hres))
{
if (RPC_E_CHANGED_MODE == hres)
{
hres = S_OK;
}
else
{
return hres;
}
}
else
{
bCoInitialized = true;
}
BSTR bstr = NULL;
do
{
///////////////////////////////////////
// delete the temporary files if any
///////////////////////////////////////
CHECK_CALL_HRES_BREAK (DeleteTemporaryFiles());
CComPtr<IIASNetshJetHelper> JetHelper;
CHECK_CALL_HRES_BREAK (CoCreateInstance(
__uuidof(CIASNetshJetHelper),
NULL,
CLSCTX_SERVER,
__uuidof(IIASNetshJetHelper),
(PVOID*) &JetHelper
));
bstr = SysAllocStringLen(
pRestoreString,
wcslen(pRestoreString) + 2
);
if (bstr == NULL)
{
#ifdef DEBUG
wprintf(L"### IASRestoreConfig->SysAllocStringLen failed\n");
#endif //DEBUG
return E_OUTOFMEMORY;
}
int RealNumberOfFiles = MAX_FILES + celems(c_wcKEYS);
for ( int i = 0; i < RealNumberOfFiles; ++i )
{
BLOB lBlob;
lBlob.cbSize = 0;
lBlob.pBlobData = NULL;
// split the files and registry info
// uncompress (in memory ?)
CHECK_CALL_HRES_BREAK (FromBase64(bstr, &lBlob, i));
ULONG ulSize = lBlob.cbSize;
PUCHAR pDeCompressedBuffer;
if (ulSize == 0)
{
// file with less sections than expected
// for instance before the number of reg keys increased
// ignore
continue;
}
////////////////////////////////////
// decode and decompress the base64
////////////////////////////////////
CHECK_CALL_HRES_BREAK (IASUnCompress(
lBlob.pBlobData,
&ulSize,
&pDeCompressedBuffer
))
if ( i >= MAX_FILES )
{
/////////////////////////////////////
// Binary; i + BINARY_NB used here
/////////////////////////////////////
IASSaveToFile(
i - MAX_FILES + BINARY_NB,
(wchar_t*)pDeCompressedBuffer,
(DWORD) ulSize
);
}
else
{
IASSaveToFile(
i,
(wchar_t*)pDeCompressedBuffer,
(DWORD) ulSize
);
}
////////////
// Clean
////////////
RtlFreeHeap(RtlProcessHeap(), 0, pDeCompressedBuffer);
CoTaskMemFree(lBlob.pBlobData);
}
///////////////////////////////////////////////////
// Now Upgrade the database (That's transactional)
///////////////////////////////////////////////////
hres = JetHelper->MigrateOrUpgradeDatabase(configType);
if ( SUCCEEDED(hres) )
{
#ifdef DEBUG
wprintf(L"### IASRestoreConfig->DB stuff successful\n");
#endif //DEBUG
////////////////////////////////////////////////////////
// Now restore the registry.
////////////////////////////////////////////////////////
hres = IASRestoreRegKeys(configType);
if ( FAILED(hres) )
{
#ifdef DEBUG
wprintf(L"### IASRestoreConfig->restore reg keys failed\n");
#endif //DEBUG
}
}
// delete the temporary files
DeleteTemporaryFiles(); // do not check the result
} while (false);
SysFreeString(bstr);
if (bCoInitialized)
{
CoUninitialize();
}
return hres;
}