416 lines
9.8 KiB
C
416 lines
9.8 KiB
C
|
/*++
|
||
|
|
|
||
|
|
Copyright (C) Microsoft Corporation, 1999 - 1999
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
debug.c
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
Common code for debugging.
|
||
|
|
|
||
|
|
Author:
|
||
|
|
|
||
|
|
Keisuke Tsuchida (KeisukeT)
|
||
|
|
|
||
|
|
Environment:
|
||
|
|
|
||
|
|
kernel mode only
|
||
|
|
|
||
|
|
Notes:
|
||
|
|
|
||
|
|
Revision History:
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
//
|
||
|
|
// Includes
|
||
|
|
//
|
||
|
|
|
||
|
|
#include "stddef.h"
|
||
|
|
#include "wdm.h"
|
||
|
|
#include "debug.h"
|
||
|
|
|
||
|
|
//
|
||
|
|
// Globals
|
||
|
|
//
|
||
|
|
|
||
|
|
ULONG DebugTraceLevel = MIN_TRACE | DEBUG_FLAG_DISABLE;
|
||
|
|
// ULONG DebugTraceLevel = MAX_TRACE | DEBUG_FLAG_DISABLE | TRACE_PROC_ENTER | TRACE_PROC_LEAVE;
|
||
|
|
LONG AllocateCount = 0;
|
||
|
|
ULONG DebugDumpMax = MAX_DUMPSIZE;
|
||
|
|
|
||
|
|
#ifdef ORIGINAL_POOLTRACK
|
||
|
|
|
||
|
|
PVOID
|
||
|
|
MyAllocatePool(
|
||
|
|
IN POOL_TYPE PoolType,
|
||
|
|
IN ULONG ulNumberOfBytes
|
||
|
|
)
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Wrapper for pool allocation. Use tag to avoid heap corruption.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
PoolType - type of pool memory to allocate
|
||
|
|
ulNumberOfBytes - number of bytes to allocate
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
Pointer to the allocated memory
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
PVOID pvRet;
|
||
|
|
|
||
|
|
DebugTrace(TRACE_PROC_ENTER,("MyAllocatePool: Enter.. Size = %d\n", ulNumberOfBytes));
|
||
|
|
|
||
|
|
pvRet = ExAllocatePoolWithTag(PoolType,
|
||
|
|
ulNumberOfBytes,
|
||
|
|
NAME_POOLTAG);
|
||
|
|
|
||
|
|
#if DBG
|
||
|
|
if(NULL == pvRet){
|
||
|
|
DebugTrace(TRACE_ERROR,("MyAllocatePool: ERROR!! Cannot allocate pool.\n"));
|
||
|
|
} else {
|
||
|
|
if(++AllocateCount > MAXNUM_POOL){
|
||
|
|
DebugTrace(TRACE_WARNING,("MyAllocatePool: WARNING!! Allocate called %dtimes more than Free\n", MAXNUM_POOL));
|
||
|
|
}
|
||
|
|
DebugTrace(TRACE_STATUS,("MyAllocatePool: Count = %d\n", AllocateCount));
|
||
|
|
}
|
||
|
|
#endif // DBG
|
||
|
|
|
||
|
|
DebugTrace(TRACE_PROC_LEAVE,("MyAllocatePool: Leaving.. pvRet = %x\n", pvRet));
|
||
|
|
return pvRet;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
VOID
|
||
|
|
MyFreePool(
|
||
|
|
IN PVOID pvAddress
|
||
|
|
)
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Wrapper for pool free. Check tag to avoid heap corruption
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
pvAddress - Pointer to the allocated memory
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
none.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
|
||
|
|
DebugTrace(TRACE_PROC_ENTER,("USFreePool: Enter..\n"));
|
||
|
|
|
||
|
|
#if DBG
|
||
|
|
{
|
||
|
|
ULONG ulTag;
|
||
|
|
|
||
|
|
ulTag = *((PULONG)pvAddress-1);
|
||
|
|
// if( (NAME_POOLTAG == ulTag) || (DebugTraceLevel & TRACE_IGNORE_TAG) ){
|
||
|
|
if(NAME_POOLTAG == ulTag){
|
||
|
|
if(--AllocateCount < 0){
|
||
|
|
DebugTrace(TRACE_WARNING,("MyFreePool: Warning!! Free called more than Allocate.\n"));
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
DebugTrace(TRACE_WARNING,("MyFreePool: WARNING!! tag = %c%c%c%c\n",
|
||
|
|
((PUCHAR)&ulTag)[0],
|
||
|
|
((PUCHAR)&ulTag)[1],
|
||
|
|
((PUCHAR)&ulTag)[2],
|
||
|
|
((PUCHAR)&ulTag)[3] ));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif // DBG
|
||
|
|
|
||
|
|
ExFreePool(pvAddress);
|
||
|
|
|
||
|
|
DebugTrace(TRACE_PROC_LEAVE,("MyFreePool: Leaving.. Return = NONE\n"));
|
||
|
|
}
|
||
|
|
#endif // ORIGINAL_POOLTRACK
|
||
|
|
|
||
|
|
|
||
|
|
VOID
|
||
|
|
MyDebugInit(
|
||
|
|
IN PUNICODE_STRING pRegistryPath
|
||
|
|
)
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Read DebugTraceLevel key from driver's registry if exists.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
pRegistryPath - pointer to a unicode string representing the path
|
||
|
|
to driver-specific key in the registry
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
none.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
|
||
|
|
HANDLE hDriverRegistry;
|
||
|
|
OBJECT_ATTRIBUTES ObjectAttributes;
|
||
|
|
UNICODE_STRING unicodeKeyName;
|
||
|
|
ULONG DataSize;
|
||
|
|
PKEY_VALUE_PARTIAL_INFORMATION pValueInfo;
|
||
|
|
NTSTATUS Status;
|
||
|
|
|
||
|
|
DebugTrace(TRACE_PROC_ENTER,("MyDebugInit: Enter... \n"));
|
||
|
|
|
||
|
|
//
|
||
|
|
// Initialize local variables.
|
||
|
|
//
|
||
|
|
|
||
|
|
Status = STATUS_SUCCESS;
|
||
|
|
hDriverRegistry = NULL;
|
||
|
|
pValueInfo = NULL;
|
||
|
|
DataSize = 0;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Initialize object attribute and open registry key.
|
||
|
|
//
|
||
|
|
|
||
|
|
RtlZeroMemory(&ObjectAttributes, sizeof(ObjectAttributes));
|
||
|
|
InitializeObjectAttributes(&ObjectAttributes,
|
||
|
|
pRegistryPath,
|
||
|
|
OBJ_CASE_INSENSITIVE,
|
||
|
|
NULL,
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
Status = ZwOpenKey(&hDriverRegistry,
|
||
|
|
KEY_READ,
|
||
|
|
&ObjectAttributes);
|
||
|
|
if(!NT_SUCCESS(Status)){
|
||
|
|
DebugTrace(TRACE_ERROR,("MyDebugInit: ERROR!! Can't open driver registry key.\n"));
|
||
|
|
goto MyDebugInit_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Read "DebugTraceLevel" key.
|
||
|
|
//
|
||
|
|
|
||
|
|
DebugTrace(TRACE_CRITICAL,("MyDebugInit: Query %wZ\\%ws.\n", pRegistryPath, REG_DEBUGLEVEL));
|
||
|
|
|
||
|
|
//
|
||
|
|
// Query required size.
|
||
|
|
//
|
||
|
|
|
||
|
|
RtlInitUnicodeString(&unicodeKeyName, REG_DEBUGLEVEL);
|
||
|
|
Status = ZwQueryValueKey(hDriverRegistry,
|
||
|
|
&unicodeKeyName,
|
||
|
|
KeyValuePartialInformation,
|
||
|
|
NULL,
|
||
|
|
0,
|
||
|
|
&DataSize);
|
||
|
|
if( (Status != STATUS_BUFFER_OVERFLOW)
|
||
|
|
&& (Status != STATUS_BUFFER_TOO_SMALL)
|
||
|
|
&& (Status != STATUS_SUCCESS) )
|
||
|
|
{
|
||
|
|
if(Status == STATUS_OBJECT_NAME_NOT_FOUND){
|
||
|
|
DebugTrace(TRACE_STATUS,("MyDebugInit: DebugTraceLevel doesn't exist. Use default(0x%x).\n", DebugTraceLevel));
|
||
|
|
} else {
|
||
|
|
DebugTrace(TRACE_ERROR,("MyDebugInit: ERROR!! ZwQueryValueKey failed. Status=0x%x\n", Status));
|
||
|
|
}
|
||
|
|
goto MyDebugInit_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Check size of data.
|
||
|
|
//
|
||
|
|
|
||
|
|
if (MAX_TEMPBUF < DataSize) {
|
||
|
|
DebugTrace(TRACE_ERROR, ("MyDebugInit: ERROR!! DataSize (0x%x) is too big.\n", DataSize));
|
||
|
|
goto MyDebugInit_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (0 == DataSize) {
|
||
|
|
DebugTrace(TRACE_ERROR, ("MyDebugInit: ERROR!! Cannot retrieve required data size.\n"));
|
||
|
|
goto MyDebugInit_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Allocate memory for temp buffer. size +2 for NULL.
|
||
|
|
//
|
||
|
|
|
||
|
|
pValueInfo = MyAllocatePool(NonPagedPool, DataSize+2);
|
||
|
|
if(NULL == pValueInfo){
|
||
|
|
DebugTrace(TRACE_CRITICAL, ("MyDebugInit: ERROR!! Buffer allocate failed.\n"));
|
||
|
|
Status = STATUS_INSUFFICIENT_RESOURCES;
|
||
|
|
goto MyDebugInit_return;
|
||
|
|
}
|
||
|
|
RtlZeroMemory(pValueInfo, DataSize+2);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Query specified value.
|
||
|
|
//
|
||
|
|
|
||
|
|
Status = ZwQueryValueKey(hDriverRegistry,
|
||
|
|
&unicodeKeyName,
|
||
|
|
KeyValuePartialInformation,
|
||
|
|
pValueInfo,
|
||
|
|
DataSize,
|
||
|
|
&DataSize);
|
||
|
|
if(!NT_SUCCESS(Status)){
|
||
|
|
DebugTrace(TRACE_ERROR, ("MyDebugInit: ERROR!! ZwQueryValueKey failed.\n"));
|
||
|
|
goto MyDebugInit_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Set DebugTraceLevel.
|
||
|
|
//
|
||
|
|
|
||
|
|
DebugTraceLevel = *((PULONG)pValueInfo->Data);
|
||
|
|
DebugTrace(TRACE_CRITICAL, ("MyDebugInit: Reg-key found. DebugTraceLevel=0x%x.\n", *((PULONG)pValueInfo->Data)));
|
||
|
|
|
||
|
|
MyDebugInit_return:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Clean up.
|
||
|
|
//
|
||
|
|
|
||
|
|
if(pValueInfo){
|
||
|
|
MyFreePool(pValueInfo);
|
||
|
|
}
|
||
|
|
|
||
|
|
if(NULL != hDriverRegistry){
|
||
|
|
ZwClose(hDriverRegistry);
|
||
|
|
}
|
||
|
|
|
||
|
|
DebugTrace(TRACE_PROC_LEAVE,("MyDebugInit: Leaving... Status=0x%x, Ret=VOID.\n", Status));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if DBG
|
||
|
|
|
||
|
|
VOID
|
||
|
|
MyDumpMemory(
|
||
|
|
PUCHAR pDumpBuffer,
|
||
|
|
ULONG dwSize,
|
||
|
|
BOOLEAN bRead
|
||
|
|
)
|
||
|
|
{
|
||
|
|
NTSTATUS Status;
|
||
|
|
ULONG ulCounter;
|
||
|
|
ULONG ulMaxSize;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Check the flag first.
|
||
|
|
//
|
||
|
|
|
||
|
|
if(bRead){
|
||
|
|
if(!(DebugTraceLevel & TRACE_FLAG_DUMP_READ)){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
} else { // if(bRead)
|
||
|
|
if(!(DebugTraceLevel & TRACE_FLAG_DUMP_WRITE)){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
} // if(bRead)
|
||
|
|
|
||
|
|
DebugTrace(TRACE_PROC_ENTER,("MyDebugDump: Enter... \n"));
|
||
|
|
|
||
|
|
//
|
||
|
|
// Initialize local.
|
||
|
|
//
|
||
|
|
|
||
|
|
Status = STATUS_SUCCESS;
|
||
|
|
ulCounter = 0;
|
||
|
|
ulMaxSize = DebugDumpMax;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Check the arguments.
|
||
|
|
//
|
||
|
|
|
||
|
|
if(NULL == pDumpBuffer){
|
||
|
|
DebugTrace(TRACE_WARNING,("MyDebugDump: WARNING!! pDumpBuffer = NULL \n"));
|
||
|
|
Status = STATUS_INVALID_PARAMETER_1;
|
||
|
|
goto MyDumpMemory_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(0 == dwSize){
|
||
|
|
DebugTrace(TRACE_STATUS,("MyDebugDump: WARNING!! dwSize = 0 \n"));
|
||
|
|
Status = STATUS_INVALID_PARAMETER_2;
|
||
|
|
goto MyDumpMemory_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(bRead){
|
||
|
|
DebugTrace(TRACE_ERROR,("MyDebugDump: Received buffer. Size=0x%x.\n", dwSize));
|
||
|
|
} else {
|
||
|
|
DebugTrace(TRACE_ERROR,("MyDebugDump: Passing buffer. Size=0x%x.\n", dwSize));
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
//
|
||
|
|
// Probe the buffer.
|
||
|
|
//
|
||
|
|
|
||
|
|
try {
|
||
|
|
ProbeForRead(pDumpBuffer,
|
||
|
|
dwSize,
|
||
|
|
sizeof(UCHAR));
|
||
|
|
} except(EXCEPTION_EXECUTE_HANDLER) {
|
||
|
|
Status = GetExceptionCode();
|
||
|
|
DebugTrace(TRACE_ERROR,("MyDebugDump: Buffer pointer (0x%x) is invalid. Status=0x%x\n", pDumpBuffer, Status));
|
||
|
|
goto MyDumpMemory_return;
|
||
|
|
} // except
|
||
|
|
*/
|
||
|
|
//
|
||
|
|
// Max dump size = 1k;
|
||
|
|
//
|
||
|
|
|
||
|
|
ulMaxSize = min(ulMaxSize , dwSize);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Dump the buffer.
|
||
|
|
//
|
||
|
|
|
||
|
|
for(ulCounter = 0; ulCounter < ulMaxSize; ulCounter++){
|
||
|
|
if(0 == (ulCounter & 0xfF)){
|
||
|
|
DbgPrint("\n");
|
||
|
|
DbgPrint(NAME_DRIVER);
|
||
|
|
DbgPrint(" +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +a +b +c +d +e +f\n");
|
||
|
|
DbgPrint(NAME_DRIVER);
|
||
|
|
DbgPrint("------------------------------------------------------------\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
if(0 == (ulCounter & 0xf)){
|
||
|
|
DbgPrint(NAME_DRIVER);
|
||
|
|
DbgPrint("%p :", pDumpBuffer+ulCounter);
|
||
|
|
}
|
||
|
|
|
||
|
|
DbgPrint(" %02x", *(pDumpBuffer+ulCounter));
|
||
|
|
|
||
|
|
if(0x7 == (ulCounter & 0xf)){
|
||
|
|
DbgPrint(" -");
|
||
|
|
}
|
||
|
|
|
||
|
|
if(0xf == (ulCounter & 0xf)){
|
||
|
|
DbgPrint("\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
DbgPrint("\n");
|
||
|
|
DbgPrint(NAME_DRIVER);
|
||
|
|
DbgPrint("------------------------------------------------------------\n\n");
|
||
|
|
|
||
|
|
MyDumpMemory_return:
|
||
|
|
DebugTrace(TRACE_PROC_LEAVE,("MyDebugDump: Leaving... Status=0x%x, Ret=VOID.\n", Status));
|
||
|
|
return;
|
||
|
|
|
||
|
|
} // MyDumpMemory(
|
||
|
|
|
||
|
|
#endif // DBG
|