Leaked source code of windows server 2003
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58 KiB

/*++
Copyright (c) 1991-1999 Microsoft Corporation
Module Name:
unlodctr.c
Abstract:
Program to remove the counter names belonging to the driver specified
in the command line and update the registry accordingly
Author:
Bob Watson (a-robw) 12 Feb 93
Revision History:
Bob Watson (bobw) 10 Mar 99 added event log messages
--*/
//
// Windows Include files
//
#include <windows.h>
#include "strsafe.h"
#define __LOADPERF__
#include <loadperf.h>
#include "wmistr.h"
#include "evntrace.h"
//
// local include files
//
#include "winperf.h"
#include "winperfp.h"
#include "common.h"
#include "unlodctr.h"
#include "ldprfmsg.h"
#define OUTPUT_MESSAGE wprintf
LPWSTR
* UnlodctrBuildNameTable(
HKEY hKeyPerflib, // handle to perflib key with counter names
HKEY hPerfData,
LPWSTR lpszLangId, // unicode value of Language subkey
DWORD dwCounterItems,
DWORD dwHelpItems,
PDWORD pdwLastItem // size of array in elements
)
/*++
UnlodctrBuildNameTable
Caches the counter names and explain text to accelerate name lookups
for display.
Arguments:
hKeyPerflib
Handle to an open registry (this can be local or remote.) and
is the value returned by RegConnectRegistry or a default key.
lpszLangId
The unicode id of the language to look up. (default is 009)
pdwLastItem
The last array element
Return Value:
pointer to an allocated table. (the caller must free it when finished!)
the table is an array of pointers to zero terminated TEXT strings.
A NULL pointer is returned if an error occured. (error value is
available using the GetLastError function).
The structure of the buffer returned is:
Array of pointers to zero terminated strings consisting of
pdwLastItem elements
MULTI_SZ string containing counter id's and names returned from
registry for the specified language
MULTI_SZ string containing explain text id's and explain text strings
as returned by the registry for the specified language
The structures listed above are contiguous so that they may be freed
by a single "free" call when finished with them, however only the
array elements are intended to be used.
--*/
{
LPWSTR * lpReturnValue; // returned pointer to buffer
LPWSTR * lpCounterId; //
LPWSTR lpCounterNames; // pointer to Names buffer returned by reg.
LPWSTR lpHelpText; // pointet to exlpain buffer returned by reg.
LPWSTR lpThisName; // working pointer
BOOL bStatus; // return status from TRUE/FALSE fn. calls
BOOL bReported;
LONG lWin32Status; // return status from fn. calls
DWORD dwValueType; // value type of buffer returned by reg.
DWORD dwArraySize; // size of pointer array in bytes
DWORD dwBufferSize; // size of total buffer in bytes
DWORD dwCounterSize; // size of counter text buffer in bytes
DWORD dwHelpSize; // size of help text buffer in bytes
DWORD dwThisCounter; // working counter
DWORD dwLastId; // largest ID value used by explain/counter text
DWORD dwLastCounterIdUsed;
DWORD dwLastHelpIdUsed;
LPWSTR lpValueNameString; // pointer to buffer conatining subkey name
LPWSTR CounterNameBuffer = NULL;
LPWSTR HelpNameBuffer = NULL;
HRESULT hr;
//initialize pointers to NULL
lpValueNameString = NULL;
lpReturnValue = NULL;
// check for null arguments and insert defaults if necessary
if (! lpszLangId) {
lpszLangId = (LPWSTR) DefaultLangId;
}
// use the greater of Help items or Counter Items to size array
if (dwHelpItems >= dwCounterItems) {
dwLastId = dwHelpItems;
}
else {
dwLastId = dwCounterItems;
}
// array size is # of elements (+ 1, since names are "1" based)
// times the size of a pointer
dwArraySize = (dwLastId + 1) * sizeof(LPWSTR);
// allocate string buffer for language ID key string
CounterNameBuffer = MemoryAllocate(MAX_PATH * sizeof(WCHAR));
HelpNameBuffer = MemoryAllocate(MAX_PATH * sizeof(WCHAR));
dwBufferSize = sizeof(WCHAR) * lstrlenW(NamesKey)
+ sizeof(WCHAR) * lstrlenW(Slash)
+ sizeof(WCHAR) * lstrlenW(lpszLangId)
+ sizeof(WCHAR);
lpValueNameString = MemoryAllocate(dwBufferSize);
if (lpValueNameString == NULL || CounterNameBuffer == NULL || HelpNameBuffer == NULL) {
lWin32Status = ERROR_OUTOFMEMORY;
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_MEMORY_ALLOCATION_FAILURE, // event,
1, __LINE__, 0, 0, 0,
0, NULL, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
0,
lWin32Status,
NULL));
goto BNT_BAILOUT;
}
hr = StringCchPrintfW(CounterNameBuffer, MAX_PATH, L"%ws%ws", CounterNameStr, lpszLangId);
hr = StringCchPrintfW(HelpNameBuffer, MAX_PATH, L"%ws%ws", HelpNameStr, lpszLangId);
lWin32Status = ERROR_SUCCESS;
// get size of counter names
dwBufferSize = 0;
__try {
lWin32Status = RegQueryValueExW(hPerfData,
CounterNameBuffer,
RESERVED,
& dwValueType,
NULL,
& dwBufferSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lWin32Status = GetExceptionCode();
}
if (lWin32Status != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_WARNING_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_COUNTER_STRINGS, // event,
3, lWin32Status, dwBufferSize, __LINE__, 0,
1, lpszLangId, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
lWin32Status,
TRACE_WSTR(lpszLangId),
TRACE_WSTR(Counters),
TRACE_DWORD(dwBufferSize),
NULL));
goto BNT_BAILOUT;
}
dwCounterSize = dwBufferSize;
// get size of help text
dwBufferSize = 0;
__try {
lWin32Status = RegQueryValueExW(hPerfData,
HelpNameBuffer,
RESERVED,
& dwValueType,
NULL,
& dwBufferSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lWin32Status = GetExceptionCode();
}
if (lWin32Status != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_HELP_STRINGS, // event,
3, lWin32Status, dwBufferSize, __LINE__, 0,
1, lpszLangId, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
lWin32Status,
TRACE_WSTR(lpszLangId),
TRACE_WSTR(Help),
TRACE_DWORD(dwBufferSize),
NULL));
goto BNT_BAILOUT;
}
dwHelpSize = dwBufferSize;
// allocate buffer with room for pointer array, counter name
// strings and help name strings
lpReturnValue = MemoryAllocate(dwArraySize + dwCounterSize + dwHelpSize);
if (!lpReturnValue) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_MEMORY_ALLOCATION_FAILURE, // event,
4, dwArraySize, dwCounterSize, dwHelpSize, __LINE__,
0, NULL, NULL, NULL);
lWin32Status = ERROR_OUTOFMEMORY;
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
0,
lWin32Status,
TRACE_DWORD(dwArraySize),
TRACE_DWORD(dwCounterSize),
TRACE_DWORD(dwHelpSize),
NULL));
goto BNT_BAILOUT;
}
// initialize pointers into buffer
lpCounterId = lpReturnValue;
lpCounterNames = (LPWSTR) ((LPBYTE) lpCounterId + dwArraySize);
lpHelpText = (LPWSTR) ((LPBYTE) lpCounterNames + dwCounterSize);
// read counter names into buffer. Counter names will be stored as
// a MULTI_SZ string in the format of "###" "Name"
dwBufferSize = dwCounterSize;
__try {
lWin32Status = RegQueryValueExW(hPerfData,
CounterNameBuffer,
RESERVED,
& dwValueType,
(LPVOID) lpCounterNames,
& dwBufferSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lWin32Status = GetExceptionCode();
}
if (lWin32Status != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_WARNING_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_COUNTER_STRINGS, // event,
3, lWin32Status, dwBufferSize, __LINE__, 0,
1, lpszLangId, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
lWin32Status,
TRACE_WSTR(lpszLangId),
TRACE_WSTR(Counters),
TRACE_DWORD(dwBufferSize),
NULL));
goto BNT_BAILOUT;
}
// read explain text into buffer. Counter names will be stored as
// a MULTI_SZ string in the format of "###" "Text..."
dwBufferSize = dwHelpSize;
__try {
lWin32Status = RegQueryValueExW(hPerfData,
HelpNameBuffer,
RESERVED,
& dwValueType,
(LPVOID) lpHelpText,
& dwBufferSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lWin32Status = GetExceptionCode();
}
if (lWin32Status != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_HELP_STRINGS, // event,
3, lWin32Status, dwBufferSize, __LINE__, 0,
1, lpszLangId, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
lWin32Status,
TRACE_WSTR(lpszLangId),
TRACE_WSTR(Help),
TRACE_DWORD(dwBufferSize),
NULL));
goto BNT_BAILOUT;
}
dwLastCounterIdUsed = 0;
dwLastHelpIdUsed = 0;
// load counter array items, by locating each text string
// in the returned buffer and loading the
// address of it in the corresponding pointer array element.
bReported = FALSE;
for (lpThisName = lpCounterNames; * lpThisName != L'\0'; lpThisName += (lstrlenW(lpThisName) + 1)) {
// first string should be an integer (in decimal digit characters)
// so translate to an integer for use in array element identification
do {
bStatus = StringToInt(lpThisName, &dwThisCounter);
if (! bStatus) {
if (! bReported) {
ReportLoadPerfEvent(
EVENTLOG_WARNING_TYPE, // error type
(DWORD) LDPRFMSG_REGISTRY_CORRUPT_MULTI_SZ, // event,
1, __LINE__, 0, 0, 0,
2, CounterNameBuffer, lpThisName, NULL);
TRACE((WINPERF_DBG_TRACE_WARNING),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
ERROR_BADKEY,
TRACE_WSTR(Counters),
TRACE_WSTR(lpThisName),
NULL));
bReported = TRUE;
}
lpThisName += (lstrlenW(lpThisName) + 1);
}
}
while ((! bStatus) && (* lpThisName != L'\0'));
if (! bStatus) {
lWin32Status = ERROR_BADKEY;
goto BNT_BAILOUT; // bad entry
}
if (dwThisCounter > dwCounterItems || dwThisCounter > dwLastId) {
lWin32Status = ERROR_BADKEY;
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_REGISTRY_COUNTER_STRINGS_CORRUPT, // event,
4, dwThisCounter, dwCounterItems, dwLastId, __LINE__,
1, lpThisName, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
ARG_DEF(ARG_TYPE_WSTR, 1),
ERROR_BADKEY,
TRACE_WSTR(lpThisName),
TRACE_DWORD(dwThisCounter),
TRACE_DWORD(dwCounterItems),
TRACE_DWORD(dwHelpItems),
NULL));
goto BNT_BAILOUT;
}
// point to corresponding counter name which follows the id number
// string.
lpThisName += (lstrlenW(lpThisName) + 1);
// and load array element with pointer to string
lpCounterId[dwThisCounter] = lpThisName;
if (dwThisCounter > dwLastCounterIdUsed) dwLastCounterIdUsed = dwThisCounter;
}
// repeat the above for the explain text strings
bReported = FALSE;
for (lpThisName = lpHelpText; * lpThisName != L'\0'; lpThisName += (lstrlenW(lpThisName) + 1)) {
// first string should be an integer (in decimal unicode digits)
do {
bStatus = StringToInt(lpThisName, &dwThisCounter);
if (! bStatus) {
if (! bReported) {
ReportLoadPerfEvent(
EVENTLOG_WARNING_TYPE, // error type
(DWORD) LDPRFMSG_REGISTRY_CORRUPT_MULTI_SZ, // event,
1, __LINE__, 0, 0, 0,
2, HelpNameBuffer, lpThisName, NULL);
TRACE((WINPERF_DBG_TRACE_WARNING),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
ERROR_BADKEY,
TRACE_WSTR(Help),
TRACE_WSTR(lpThisName),
NULL));
bReported = TRUE;
}
lpThisName += (lstrlenW(lpThisName) + 1);
}
}
while ((! bStatus) && (* lpThisName != L'\0'));
if (!bStatus) {
lWin32Status = ERROR_BADKEY;
goto BNT_BAILOUT; // bad entry
}
if (dwThisCounter > dwHelpItems || dwThisCounter > dwLastId) {
lWin32Status = ERROR_BADKEY;
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_REGISTRY_COUNTER_STRINGS_CORRUPT, // event,
4, dwThisCounter, dwHelpItems, dwLastId, __LINE__,
1, lpThisName, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
ARG_DEF(ARG_TYPE_WSTR, 1),
ERROR_BADKEY,
TRACE_WSTR(lpThisName),
TRACE_DWORD(dwThisCounter),
TRACE_DWORD(dwCounterItems),
TRACE_DWORD(dwHelpItems),
NULL));
goto BNT_BAILOUT;
}
// point to corresponding counter name
lpThisName += (lstrlenW(lpThisName) + 1);
// and load array element;
lpCounterId[dwThisCounter] = lpThisName;
if (dwThisCounter > dwLastHelpIdUsed) dwLastHelpIdUsed= dwThisCounter;
}
TRACE((WINPERF_DBG_TRACE_INFO),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLODCTR_BUILDNAMETABLE,
0,
ERROR_SUCCESS,
TRACE_DWORD(dwLastId),
TRACE_DWORD(dwLastCounterIdUsed),
TRACE_DWORD(dwLastHelpIdUsed),
TRACE_DWORD(dwCounterItems),
TRACE_DWORD(dwHelpItems),
NULL));
if (dwLastHelpIdUsed > dwLastId || dwLastCounterIdUsed > dwLastId) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_REGISTRY_INDEX_CORRUPT, // event,
4, dwLastId, dwLastCounterIdUsed, dwLastHelpIdUsed, __LINE__,
0, NULL, NULL, NULL);
lWin32Status = ERROR_BADKEY;
goto BNT_BAILOUT; // bad registry
}
// if the last item arugment was used, then load the last ID value in it
if (pdwLastItem) * pdwLastItem = dwLastId;
BNT_BAILOUT:
// free the temporary buffer used
MemoryFree(lpValueNameString);
MemoryFree(CounterNameBuffer);
MemoryFree(HelpNameBuffer);
if (lWin32Status != ERROR_SUCCESS) {
// if lWin32Status has error, then set last error value to it,
// otherwise assume that last error already has value in it
SetLastError(lWin32Status);
MemoryFree(lpReturnValue);
lpReturnValue = NULL;
}
// exit returning the pointer to the buffer
return lpReturnValue;
} // UnlodctrBuildNameTable
BOOL
GetDriverFromCommandLine(
LPWSTR lpCommandLine,
HKEY * hKeyMachine,
LPWSTR lpDriverName,
HKEY * hDriverPerf,
HKEY * hKeyDriver,
BOOL bQuietMode
)
/*++
GetDriverFromCommandLine
locates the first argument in the command line string (after the
image name) and checks to see if
a) it's there
b) it's the name of a device driver listed in the
Registry\Machine\System\CurrentControlSet\Services key
in the registry and it has a "Performance" subkey
c) that the "First Counter" value under the Performance subkey
is defined.
if all these criteria are true, then the routine returns TRUE and
passes the pointer to the driver name back in the argument. If any
one of them fail, then NULL is returned in the DriverName arg and
the routine returns FALSE
Arguments
lpDriverName
the address of a LPWSTR to recive the pointer to the driver name
hDriverPerf
the key to the driver's performance subkey
Return Value
TRUE if a valid driver was found in the command line
FALSE if not (see above)
--*/
{
LPWSTR lpDriverKey = NULL; // buffer to build driver key name in
LPWSTR lpTmpDrive = NULL;
LONG lStatus;
DWORD dwFirstCounter;
DWORD dwSize;
DWORD dwType;
BOOL bReturn = FALSE;
HRESULT hr;
if (! lpDriverName || ! hDriverPerf) {
SetLastError(ERROR_BAD_ARGUMENTS);
goto Cleanup;
}
* hDriverPerf = NULL;
// an argument was found so see if it's a driver "<DriverPathRoot>\<pDriverName>\Performance"
dwSize = lstrlenW(DriverPathRoot)+ lstrlenW(lpCommandLine) + 32;
if (dwSize < SMALL_BUFFER_SIZE) dwSize = SMALL_BUFFER_SIZE;
lpDriverKey = MemoryAllocate(2 * dwSize * sizeof (WCHAR));
if (lpDriverKey == NULL) {
SetLastError(ERROR_OUTOFMEMORY);
goto Cleanup;
}
lpTmpDrive = lpDriverKey + dwSize;
// No remote LODCTR/UNLODCTR cases, so ignore computer name from command-line argument.
//
hr = StringCchCopyW(lpTmpDrive, dwSize, GetItemFromString(lpCommandLine, 2, cSpace));
hr = StringCchCopyW(lpDriverName, dwSize, GetItemFromString(lpCommandLine, 3, cSpace));
if (lpTmpDrive[1] == cQuestion) {
if (! bQuietMode) {
DisplayCommandHelp(UC_FIRST_CMD_HELP, UC_LAST_CMD_HELP);
}
SetLastError(ERROR_SUCCESS);
goto Cleanup;
}
// no /? so process args read
if (lstrlenW(lpDriverName) == 0) {
// then no computer name is specifed so assume the local computer
// and the driver name is listed in the computer name param
if (lstrlenW(lpTmpDrive) == 0) {
// no input command-line parameter, bail out now.
if (! bQuietMode) {
DisplayCommandHelp(UC_FIRST_CMD_HELP, UC_LAST_CMD_HELP);
}
SetLastError(ERROR_INVALID_PARAMETER);
goto Cleanup;
}
else {
hr = StringCchCopyW(lpDriverName, dwSize, lpTmpDrive);
}
}
* hKeyMachine = HKEY_LOCAL_MACHINE;
hr = StringCchPrintfW(lpDriverKey, dwSize, L"%ws%ws%ws", DriverPathRoot, Slash, lpDriverName);
__try {
lStatus = RegOpenKeyExW(* hKeyMachine, lpDriverKey, RESERVED, KEY_READ | KEY_WRITE, hKeyDriver);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus == ERROR_SUCCESS) {
hr = StringCchPrintfW(lpDriverKey, dwSize, L"%ws%ws%ws%ws%ws",
DriverPathRoot, Slash, lpDriverName, Slash, Performance);
__try {
lStatus = RegOpenKeyExW(* hKeyMachine, lpDriverKey, RESERVED, KEY_READ | KEY_WRITE, hDriverPerf);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
}
if (lStatus == ERROR_SUCCESS) {
// this driver has a performance section so see if its
// counters are installed by checking the First Counter
// value key for a valid return. If it returns a value
// then chances are, it has some counters installed, if
// not, then display a message and quit.
//
dwType = 0;
dwSize = sizeof (dwFirstCounter);
__try {
lStatus = RegQueryValueExW(* hDriverPerf,
FirstCounter,
RESERVED,
& dwType,
(LPBYTE) & dwFirstCounter,
& dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus == ERROR_SUCCESS) {
// counter names are installed so return success
SetLastError(ERROR_SUCCESS);
bReturn = TRUE;
}
else {
// counter names are probably not installed so return FALSE
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_NOTINSTALLED), lpDriverName);
* lpDriverName = cNull; // remove driver name
SetLastError(ERROR_BADKEY);
}
}
else { // key not found
if (lStatus != ERROR_INVALID_PARAMETER) {
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource (UC_DRIVERNOTFOUND), lpDriverKey, lStatus);
}
else {
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource (UC_BAD_DRIVER_NAME), 0);
}
SetLastError(lStatus);
}
Cleanup:
MemoryFree(lpDriverKey);
if (bReturn) {
TRACE((WINPERF_DBG_TRACE_INFO),
(& LoadPerfGuid,
__LINE__,
LOADPERF_GETDRIVERFROMCOMMANDLINE,
ARG_DEF(ARG_TYPE_WSTR, 1),
ERROR_SUCCESS,
TRACE_WSTR(lpDriverName),
NULL));
}
else {
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_GETDRIVERFROMCOMMANDLINE,
0,
GetLastError(),
NULL));
}
return bReturn;
}
LONG
FixNames(
HANDLE hKeyLang,
LPWSTR * lpOldNameTable,
LPWSTR lpszLangId, // unicode value of Language subkey
DWORD dwLastItem,
DWORD dwFirstNameToRemove,
DWORD dwLastNameToRemove,
LPDWORD pdwLastCounter,
LPDWORD pdwLastHelp,
BOOL bQuietMode
)
{
LONG lStatus;
LPWSTR lpNameBuffer = NULL;
LPWSTR lpHelpBuffer = NULL;
DWORD dwTextIndex, dwSize, dwValueType;
LPWSTR lpNextHelpText;
DWORD dwHelpText;
LPWSTR lpNextNameText;
DWORD dwNameText;
LPWSTR AddCounterNameBuffer = NULL;
LPWSTR AddHelpNameBuffer = NULL;
DWORD dwLastCounter = * pdwLastCounter;
DWORD dwLastHelp = * pdwLastHelp;
HRESULT hr;
// allocate space for the array of new text it will point
// into the text buffer returned in the lpOldNameTable buffer)
lpNameBuffer = MemoryAllocate(MemorySize(lpOldNameTable) * sizeof(WCHAR));
lpHelpBuffer = MemoryAllocate(MemorySize(lpOldNameTable) * sizeof(WCHAR));
AddCounterNameBuffer = MemoryAllocate(MAX_PATH * sizeof(WCHAR));
AddHelpNameBuffer = MemoryAllocate(MAX_PATH * sizeof(WCHAR));
if (lpNameBuffer == NULL || lpHelpBuffer == NULL || AddCounterNameBuffer == NULL || AddHelpNameBuffer == NULL) {
lStatus = ERROR_OUTOFMEMORY;
goto UCN_FinishLang;
}
// remove this driver's counters from array
for (dwTextIndex = dwFirstNameToRemove; dwTextIndex <= dwLastNameToRemove; dwTextIndex++) {
if (dwTextIndex > dwLastItem) break;
lpOldNameTable[dwTextIndex] = NULL;
}
lpNextHelpText = lpHelpBuffer;
lpNextNameText = lpNameBuffer;
dwHelpText = MemorySize(lpHelpBuffer);
dwNameText = MemorySize(lpNameBuffer);
// build new Multi_SZ strings from New Table
for (dwTextIndex = 0; dwTextIndex <= dwLastItem; dwTextIndex ++) {
if (lpOldNameTable[dwTextIndex] != NULL) {
// if there's a text string at that index, then ...
if ((dwTextIndex & 0x1) && dwTextIndex != 1) { // ODD number == Help Text
hr = StringCchPrintfW(lpNextHelpText, dwHelpText, L"%d", dwTextIndex);
dwSize = lstrlenW(lpNextHelpText) + 1;
dwHelpText -= dwSize;
lpNextHelpText += dwSize;
hr = StringCchCopyW(lpNextHelpText, dwHelpText, lpOldNameTable[dwTextIndex]);
dwSize = lstrlenW(lpNextHelpText) + 1;
dwHelpText -= dwSize;
lpNextHelpText += dwSize;
if (dwTextIndex > dwLastHelp) {
dwLastHelp = dwTextIndex;
}
}
else { // EVEN number == counter name text
hr = StringCchPrintfW(lpNextNameText, dwNameText, L"%d", dwTextIndex);
dwSize = lstrlenW(lpNextNameText) + 1;
dwNameText -= dwSize;
lpNextNameText += dwSize;
hr = StringCchCopyW(lpNextNameText, dwNameText, lpOldNameTable[dwTextIndex]);
dwSize = lstrlenW(lpNextNameText) + 1;
dwNameText -= dwSize;
lpNextNameText += dwSize;
if (dwTextIndex > dwLastCounter) {
dwLastCounter = dwTextIndex;
}
}
}
} // for dwTextIndex
TRACE((WINPERF_DBG_TRACE_INFO),
(& LoadPerfGuid,
__LINE__,
LOADPERF_FIXNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
ERROR_SUCCESS,
TRACE_WSTR(lpszLangId),
TRACE_DWORD(dwLastItem),
TRACE_DWORD(dwLastCounter),
TRACE_DWORD(dwLastHelp),
TRACE_DWORD(dwFirstNameToRemove),
TRACE_DWORD(dwLastNameToRemove),
NULL));
if (dwLastCounter < PERFLIB_BASE_INDEX - 1 || dwLastHelp < PERFLIB_BASE_INDEX) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_REGISTRY_BASEINDEX_CORRUPT, // event,
4, PERFLIB_BASE_INDEX, dwLastCounter, dwLastHelp, __LINE__,
1, (LPWSTR) Performance, NULL, NULL);
lStatus = ERROR_BADKEY;
goto UCN_FinishLang;
}
// add MULTI_SZ terminating NULL
* lpNextNameText ++ = L'\0';
* lpNextHelpText ++ = L'\0';
// update counter name text buffer
dwSize = (DWORD) ((LPBYTE) lpNextNameText - (LPBYTE) lpNameBuffer);
hr = StringCchPrintfW(AddCounterNameBuffer, MAX_PATH, L"%ws%ws", AddCounterNameStr, lpszLangId);
__try {
lStatus = RegQueryValueExW(hKeyLang,
AddCounterNameBuffer,
RESERVED,
& dwValueType,
(LPBYTE) lpNameBuffer,
& dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_UPDATE_COUNTER_STRINGS, // event,
3, lStatus, dwSize, __LINE__, 0,
1, lpszLangId, NULL, NULL);
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLELOADLANG), Counters, lpszLangId, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_FIXNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(Counters),
TRACE_DWORD(dwSize),
NULL));
goto UCN_FinishLang;
}
dwSize = (DWORD) ((LPBYTE) lpNextHelpText - (LPBYTE) lpHelpBuffer);
hr = StringCchPrintfW(AddHelpNameBuffer, MAX_PATH, L"%ws%ws", AddHelpNameStr, lpszLangId);
__try {
lStatus = RegQueryValueExW(hKeyLang,
AddHelpNameBuffer,
RESERVED,
& dwValueType,
(LPBYTE) lpHelpBuffer,
& dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_UPDATE_HELP_STRINGS, // event,
3, lStatus, dwSize, __LINE__, 0,
1, lpszLangId, NULL, NULL);
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLELOADLANG), Help, lpszLangId, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_FIXNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(Help),
TRACE_DWORD(dwSize),
NULL));
goto UCN_FinishLang;
}
UCN_FinishLang:
* pdwLastCounter = dwLastCounter;
* pdwLastHelp = dwLastHelp;
MemoryFree(lpNameBuffer);
MemoryFree(lpHelpBuffer);
MemoryFree(AddCounterNameBuffer);
MemoryFree(AddHelpNameBuffer);
MemoryFree(lpOldNameTable);
return lStatus;
}
LONG
UnloadCounterNames(
HKEY hKeyMachine,
HKEY hDriverPerf,
HKEY hKeyDriver,
LPWSTR lpDriverName,
BOOL bQuietMode
)
/*++
UnloadCounterNames
removes the names and explain text for the driver referenced by
hDriverPerf and updates the first and last counter values accordingly
update process:
- set "updating" flag under Perflib to name of driver being modified
- FOR each language under perflib key
-- load current counter names and explain text into array of
pointers
-- look at all drivers and copy their names and text into a new
buffer adjusting for the removed counter's entries keeping
track of the lowest entry copied. (the names for the driver
to be removed will not be copied, of course)
-- update each driver's "first" and "last" index values
-- copy all other entries from 0 to the lowest copied (i.e. the
system counters)
-- build a new MULIT_SZ string of help text and counter names
-- load new strings into registry
- update perflibl "last" counters
- delete updating flag
******************************************************
* *
* NOTE: FUNDAMENTAL ASSUMPTION..... *
* *
* this routine assumes that: *
* *
* ALL COUNTER NAMES are even numbered and *
* ALL HELP TEXT STRINGS are odd numbered *
* *
******************************************************
Arguments
hKeyMachine
handle to HKEY_LOCAL_MACHINE node of registry on system to
remove counters from
hDrivefPerf
handle to registry key of driver to be de-installed
lpDriverName
name of driver being de-installed
Return Value
DOS Error code.
ERROR_SUCCESS if all went OK
error value if not.
--*/
{
HKEY hPerflib = NULL;
HKEY hPerfData = NULL;
LONG lStatus = ERROR_SUCCESS;
DWORD dwLangIndex;
DWORD dwSize;
DWORD dwType;
DWORD dwCounterItems;
DWORD dwHelpItems;
DWORD dwLastItem;
DWORD dwLastCounter;
DWORD dwLastHelp;
DWORD dwRemLastDriverCounter;
DWORD dwRemFirstDriverCounter;
DWORD dwRemLastDriverHelp;
DWORD dwRemFirstDriverHelp;
DWORD dwFirstNameToRemove;
DWORD dwLastNameToRemove;
DWORD dwLastNameInTable;
LPWSTR * lpOldNameTable;
BOOL bPerflibUpdated = FALSE;
DWORD dwBufferSize; // size of total buffer in bytes
LPWSTR szServiceDisplayName = NULL;
LONG_PTR TempFileHandle = -1;
HRESULT hr;
if (LoadPerfGrabMutex() == FALSE) {
return (GetLastError());
}
szServiceDisplayName = MemoryAllocate(SMALL_BUFFER_SIZE * sizeof(WCHAR));
if (szServiceDisplayName == NULL) {
lStatus = ERROR_OUTOFMEMORY;
goto UCN_ExitPoint;
}
if (hKeyDriver != NULL) {
dwBufferSize = SMALL_BUFFER_SIZE * sizeof(WCHAR);
lStatus = RegQueryValueExW(hKeyDriver,
szDisplayName,
RESERVED,
& dwType,
(LPBYTE) szServiceDisplayName,
& dwBufferSize);
if (lStatus != ERROR_SUCCESS) {
hr = StringCchCopyW(szServiceDisplayName, SMALL_BUFFER_SIZE, lpDriverName);
}
}
else {
hr = StringCchCopyW(szServiceDisplayName, SMALL_BUFFER_SIZE, lpDriverName);
}
// open registry handle to perflib key
__try {
lStatus = RegOpenKeyExW(hKeyMachine, NamesKey, RESERVED, KEY_READ | KEY_WRITE, & hPerflib);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_OPEN_KEY, // event,
2, lStatus, __LINE__, 0, 0,
1, (LPWSTR) NamesKey, NULL, NULL);
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLEOPENKEY), NamesKey, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(NamesKey),
NULL));
goto UCN_ExitPoint;
}
dwBufferSize = lstrlenW(lpDriverName) * sizeof(WCHAR);
__try {
lStatus = RegSetValueExW( hPerflib, Busy, RESERVED, REG_SZ, (LPBYTE) lpDriverName, dwBufferSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS) {
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLESETVALUE), Busy, NamesKey, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(Busy),
NULL));
goto UCN_ExitPoint;
}
// query registry to get number of Explain text items
dwBufferSize = sizeof(dwHelpItems);
__try {
lStatus = RegQueryValueExW(hPerflib,
LastHelp,
RESERVED,
& dwType,
(LPBYTE) & dwHelpItems,
& dwBufferSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS || dwType != REG_DWORD) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_VALUE, // event,
2, lStatus, __LINE__, 0, 0,
1, (LPWSTR) LastHelp, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(LastHelp),
NULL));
goto UCN_ExitPoint;
}
// query registry to get number of counter and object name items
dwBufferSize = sizeof(dwCounterItems);
__try {
lStatus = RegQueryValueExW(hPerflib,
LastCounter,
RESERVED,
& dwType,
(LPBYTE) & dwCounterItems,
& dwBufferSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS || dwType != REG_DWORD) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_VALUE, // event,
2, lStatus, __LINE__, 0, 0,
1, (LPWSTR) LastCounter, NULL, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(LastCounter),
NULL));
goto UCN_ExitPoint;
}
dwLastNameInTable = dwHelpItems;
if (dwLastNameInTable < dwCounterItems) dwLastNameInTable = dwCounterItems;
// set the hPerfData to HKEY_PERFORMANCE_DATA for new version
hPerfData = HKEY_PERFORMANCE_DATA;
// Get the values that are in use by the driver to be removed
dwSize = sizeof(dwRemLastDriverCounter);
__try {
lStatus = RegQueryValueExW(hDriverPerf,
LastCounter,
RESERVED,
& dwType,
(LPBYTE) & dwRemLastDriverCounter,
& dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS || dwType != REG_DWORD) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_VALUE, // event,
2, lStatus, __LINE__, 0, 0,
1, (LPWSTR) LastCounter, NULL, NULL);
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLEREADVALUE), lpDriverName, LastCounter, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
lStatus,
TRACE_WSTR(lpDriverName),
TRACE_WSTR(LastCounter),
NULL));
goto UCN_ExitPoint;
}
dwSize = sizeof(dwRemFirstDriverCounter);
__try {
lStatus = RegQueryValueExW(hDriverPerf,
FirstCounter,
RESERVED,
& dwType,
(LPBYTE) & dwRemFirstDriverCounter,
& dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS || dwType != REG_DWORD) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_VALUE, // event,
2, lStatus, __LINE__, 0, 0,
1, (LPWSTR) FirstCounter, NULL, NULL);
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLEREADVALUE), lpDriverName, FirstCounter, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
lStatus,
TRACE_WSTR(lpDriverName),
TRACE_WSTR(FirstCounter),
NULL));
goto UCN_ExitPoint;
}
dwSize = sizeof(dwRemLastDriverHelp);
__try {
lStatus = RegQueryValueExW(hDriverPerf,
LastHelp,
RESERVED,
& dwType,
(LPBYTE) & dwRemLastDriverHelp,
& dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS || dwType != REG_DWORD) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_VALUE, // event,
2, lStatus, __LINE__, 0, 0,
1, (LPWSTR) LastHelp, NULL, NULL);
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLEREADVALUE), lpDriverName, LastHelp, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
lStatus,
TRACE_WSTR(lpDriverName),
TRACE_WSTR(LastHelp),
NULL));
goto UCN_ExitPoint;
}
dwSize = sizeof(dwRemFirstDriverHelp);
__try {
lStatus = RegQueryValueExW(hDriverPerf,
FirstHelp,
RESERVED,
& dwType,
(LPBYTE) & dwRemFirstDriverHelp,
& dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS || dwType != REG_DWORD) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_READ_VALUE, // event,
2, lStatus, __LINE__, 0, 0,
1, (LPWSTR) FirstHelp, NULL, NULL);
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLEREADVALUE), lpDriverName, FirstHelp, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1) | ARG_DEF(ARG_TYPE_WSTR, 2),
lStatus,
TRACE_WSTR(lpDriverName),
TRACE_WSTR(FirstHelp),
NULL));
goto UCN_ExitPoint;
}
TRACE((WINPERF_DBG_TRACE_INFO),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(lpDriverName),
TRACE_DWORD(dwLastNameInTable),
TRACE_DWORD(dwCounterItems),
TRACE_DWORD(dwHelpItems),
TRACE_DWORD(dwRemFirstDriverCounter),
TRACE_DWORD(dwRemLastDriverCounter),
TRACE_DWORD(dwRemFirstDriverHelp),
TRACE_DWORD(dwRemLastDriverHelp),
NULL));
// get the first and last counters to define block of names used
// by this device
dwFirstNameToRemove = (dwRemFirstDriverCounter <= dwRemFirstDriverHelp ?
dwRemFirstDriverCounter : dwRemFirstDriverHelp);
dwLastNameToRemove = (dwRemLastDriverCounter >= dwRemLastDriverHelp ?
dwRemLastDriverCounter : dwRemLastDriverHelp);
dwLastCounter = dwLastHelp = 0;
if (lStatus != ERROR_SUCCESS) {
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_UNABLEREADVALUE), lpDriverName, FirstHelp, lStatus);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(lpDriverName),
NULL));
goto UCN_ExitPoint;
}
{
LPWSTR mszLangList = NULL;
LPWSTR LangId;
BOOL bStatus = GetInstalledLanguageList(hPerflib, & mszLangList);
if (! bStatus) {
lStatus = GetLastError();
}
else {
for (LangId = mszLangList; * LangId != L'\0'; LangId += (lstrlenW(LangId) + 1)) {
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_DOINGLANG), LangId);
lpOldNameTable = UnlodctrBuildNameTable(hPerflib,
hPerfData,
LangId,
dwCounterItems,
dwHelpItems,
& dwLastItem);
if (lpOldNameTable != NULL) {
if (dwLastItem <= dwLastNameInTable) {
// registry is OK so continue
if ((lStatus = FixNames(hPerfData,
lpOldNameTable,
LangId,
dwLastItem,
dwFirstNameToRemove,
dwLastNameToRemove,
& dwLastCounter,
& dwLastHelp,
bQuietMode)) == ERROR_SUCCESS) {
bPerflibUpdated = TRUE;
}
}
else {
lStatus = ERROR_BADDB;
break;
}
}
else { // unable to unload names for this language
lStatus = GetLastError();
if (lStatus == ERROR_FILE_NOT_FOUND) {
// somehow there is language subkey without "Counters" and "Help" values,
// usually this happens in MUI or LOC systems.
lStatus = ERROR_SUCCESS;
}
}
}
}
MemoryFree(mszLangList);
} // end of NEW_VERSION
if (bPerflibUpdated && lStatus == ERROR_SUCCESS) {
// update perflib's "last" values
dwSize = sizeof(dwLastCounter);
__try {
lStatus = RegSetValueExW(hPerflib,
LastCounter,
RESERVED,
REG_DWORD,
(LPBYTE) & dwLastCounter,
dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus == ERROR_SUCCESS) {
dwSize = sizeof(dwLastHelp);
__try {
lStatus = RegSetValueExW(hPerflib,
LastHelp,
RESERVED,
REG_DWORD,
(LPBYTE) & dwLastHelp,
dwSize);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lStatus = GetExceptionCode();
}
if (lStatus != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_UPDATE_VALUE, // event,
3, lStatus, dwLastHelp, __LINE__, 0,
2, (LPWSTR) LastHelp, (LPWSTR) NamesKey, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(LastHelp),
TRACE_DWORD(dwLastHelp),
NULL));
}
}
else {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNABLE_UPDATE_VALUE, // event,
3, lStatus, dwLastCounter, __LINE__, 0,
2, (LPWSTR) LastCounter, (LPWSTR) NamesKey, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(LastCounter),
TRACE_DWORD(dwLastCounter),
NULL));
}
if (lStatus == ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_INFORMATION_TYPE, // error type
(DWORD) LDPRFMSG_UNLOAD_SUCCESS, // event,
3, dwLastCounter, dwLastHelp, __LINE__, 0,
2, (LPWSTR) lpDriverName, (LPWSTR) szServiceDisplayName, NULL);
TRACE((WINPERF_DBG_TRACE_INFO),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(lpDriverName),
TRACE_DWORD(dwLastCounter),
TRACE_DWORD(dwLastHelp),
NULL));
RegDeleteValueW(hDriverPerf, FirstCounter);
RegDeleteValueW(hDriverPerf, LastCounter);
RegDeleteValueW(hDriverPerf, FirstHelp);
RegDeleteValueW(hDriverPerf, LastHelp);
RegDeleteValueW(hDriverPerf, szObjectList);
RegDeleteValueW(hDriverPerf, szLibraryValidationCode);
}
}
UCN_ExitPoint:
if (lStatus != ERROR_SUCCESS) {
ReportLoadPerfEvent(
EVENTLOG_ERROR_TYPE, // error type
(DWORD) LDPRFMSG_UNLOAD_FAILURE, // event,
2, lStatus, __LINE__, 0, 0,
2, (LPWSTR) lpDriverName, (LPWSTR) szServiceDisplayName, NULL);
TRACE((WINPERF_DBG_TRACE_ERROR),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADCOUNTERNAMES,
ARG_DEF(ARG_TYPE_WSTR, 1),
lStatus,
TRACE_WSTR(lpDriverName),
NULL));
}
MemoryFree(szServiceDisplayName);
if (hPerflib != NULL) {
RegDeleteValueW(hPerflib, Busy);
RegCloseKey(hPerflib);
}
ReleaseMutex(hLoadPerfMutex);
return lStatus;
}
LOADPERF_FUNCTION
UnloadPerfCounterTextStringsW(
IN LPWSTR lpCommandLine,
IN BOOL bQuietMode
)
/*++
UnloadPerfCounterTextStringsW
entry point to Counter Name Unloader
Arguments
command line string in the format:
"/?" displays the usage help
"driver" driver containing the performance counters
"\\machine driver" removes the counters from the driver on \\machine
ReturnValue
0 (ERROR_SUCCESS) if command was processed
Non-Zero if command error was detected.
--*/
{
LPWSTR lpDriverName = NULL; // name of driver to delete from perflib
DWORD dwDriverName = 0;
HKEY hDriverPerf = NULL; // handle to performance sub-key of driver
HKEY hMachineKey = NULL; // handle to remote machine HKEY_LOCAL_MACHINE
HKEY hKeyDriver = NULL;
DWORD dwStatus = ERROR_SUCCESS; // return status of fn. calls
WinPerfStartTrace(NULL);
if (lpCommandLine == NULL) {
dwStatus = ERROR_INVALID_PARAMETER;
}
else {
__try {
dwDriverName = lstrlenW(lpCommandLine) + 1;
if (dwDriverName == 1) dwStatus = ERROR_INVALID_PARAMETER;
}
__except(EXCEPTION_EXECUTE_HANDLER) {
dwStatus = ERROR_INVALID_PARAMETER;
}
}
if (dwStatus != ERROR_SUCCESS) goto Exit0;
lpDriverName = (LPWSTR) MemoryAllocate(dwDriverName * sizeof(WCHAR));
if (lpDriverName != NULL) {
if (! GetDriverFromCommandLine(lpCommandLine,
& hMachineKey,
lpDriverName,
& hDriverPerf,
& hKeyDriver,
bQuietMode)) {
// error message was printed in routine if there was an error
dwStatus = GetLastError();
goto Exit0;
}
}
else {
dwStatus = ERROR_OUTOFMEMORY;
goto Exit0;
}
if (! bQuietMode) OUTPUT_MESSAGE(GetFormatResource(UC_REMOVINGDRIVER), lpDriverName);
// removes names and explain text for driver in lpDriverName
// displays error messages for errors encountered
dwStatus = (DWORD) UnloadCounterNames(hMachineKey, hDriverPerf, hKeyDriver, lpDriverName, bQuietMode);
if (dwStatus == ERROR_SUCCESS) {
LoadPerfSignalWmiWithNewData (WMI_UNLODCTR_EVENT);
}
Exit0:
TRACE((WINPERF_DBG_TRACE_INFO),
(& LoadPerfGuid,
__LINE__,
LOADPERF_UNLOADPERFCOUNTERTEXTSTRINGS,
ARG_DEF(ARG_TYPE_WSTR, 1),
dwStatus,
TRACE_WSTR(lpDriverName),
NULL));
MemoryFree(lpDriverName);
if (hDriverPerf != NULL) RegCloseKey(hDriverPerf);
if (hMachineKey != HKEY_LOCAL_MACHINE && hMachineKey != NULL) {
RegCloseKey (hMachineKey);
}
return dwStatus;
}
LOADPERF_FUNCTION
UnloadPerfCounterTextStringsA(
IN LPSTR lpAnsiCommandLine,
IN BOOL bQuietMode
)
{
LPWSTR lpWideCommandLine = NULL;
DWORD lReturn = ERROR_SUCCESS;
if (lpAnsiCommandLine == NULL) {
lReturn = ERROR_INVALID_PARAMETER;
}
else {
__try {
DWORD dwDriverName = lstrlenA(lpAnsiCommandLine);
if (dwDriverName == 0) lReturn = ERROR_INVALID_PARAMETER;
}
__except (EXCEPTION_EXECUTE_HANDLER) {
lReturn = ERROR_INVALID_PARAMETER;
}
}
if (lReturn == ERROR_SUCCESS) { // to catch bogus parameters
lpWideCommandLine = LoadPerfMultiByteToWideChar(CP_ACP, lpAnsiCommandLine);
if (lpWideCommandLine != NULL) {
lReturn = UnloadPerfCounterTextStringsW(lpWideCommandLine, bQuietMode);
MemoryFree(lpWideCommandLine);
}
else {
lReturn = ERROR_OUTOFMEMORY;
}
}
return lReturn;
}