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/*++
Copyright (c) 1997 Microsoft Corporation
Module Name:
debug.c
Abstract:
This module contains all debug-related code.
--*/
#include <precomp.h>
#define __FILENUMBER 'GBED'
#if DBG
INT ndisprotDebugLevel=DL_WARN;
NDIS_SPIN_LOCK ndisprotDbgLogLock;
PNPROTD_ALLOCATION ndisprotdMemoryHead = (PNPROTD_ALLOCATION)NULL;
PNPROTD_ALLOCATION ndisprotdMemoryTail = (PNPROTD_ALLOCATION)NULL;
ULONG ndisprotdAllocCount = 0; // how many allocated so far (unfreed)
NDIS_SPIN_LOCK ndisprotdMemoryLock;
BOOLEAN ndisprotdInitDone = FALSE;
PVOID
ndisprotAuditAllocMem(
PVOID pPointer,
ULONG Size,
ULONG FileNumber,
ULONG LineNumber
)
{
PVOID pBuffer;
PNPROTD_ALLOCATION pAllocInfo;
if (!ndisprotdInitDone)
{
NdisAllocateSpinLock(&(ndisprotdMemoryLock));
ndisprotdInitDone = TRUE;
}
NdisAllocateMemoryWithTag(
(PVOID *)&pAllocInfo,
Size+sizeof(NPROTD_ALLOCATION),
(ULONG)'oiuN'
);
if (pAllocInfo == (PNPROTD_ALLOCATION)NULL)
{
DEBUGP(DL_VERY_LOUD+50,
("ndisprotAuditAllocMem: file %d, line %d, Size %d failed!\n",
FileNumber, LineNumber, Size));
pBuffer = NULL;
}
else
{
pBuffer = (PVOID)&(pAllocInfo->UserData);
NPROT_SET_MEM(pBuffer, 0xaf, Size);
pAllocInfo->Signature = NPROTD_MEMORY_SIGNATURE;
pAllocInfo->FileNumber = FileNumber;
pAllocInfo->LineNumber = LineNumber;
pAllocInfo->Size = Size;
pAllocInfo->Location = (ULONG_PTR)pPointer;
pAllocInfo->Next = (PNPROTD_ALLOCATION)NULL;
NdisAcquireSpinLock(&(ndisprotdMemoryLock));
pAllocInfo->Prev = ndisprotdMemoryTail;
if (ndisprotdMemoryTail == (PNPROTD_ALLOCATION)NULL)
{
// empty list
ndisprotdMemoryHead = ndisprotdMemoryTail = pAllocInfo;
}
else
{
ndisprotdMemoryTail->Next = pAllocInfo;
}
ndisprotdMemoryTail = pAllocInfo;
ndisprotdAllocCount++;
NdisReleaseSpinLock(&(ndisprotdMemoryLock));
}
DEBUGP(DL_VERY_LOUD+100,
("ndisprotAuditAllocMem: file %c%c%c%c, line %d, %d bytes, [0x%p] <- 0x%p\n",
(CHAR)(FileNumber & 0xff),
(CHAR)((FileNumber >> 8) & 0xff),
(CHAR)((FileNumber >> 16) & 0xff),
(CHAR)((FileNumber >> 24) & 0xff),
LineNumber, Size, pPointer, pBuffer));
return (pBuffer);
}
VOID
ndisprotAuditFreeMem(
PVOID Pointer
)
{
PNPROTD_ALLOCATION pAllocInfo;
NdisAcquireSpinLock(&(ndisprotdMemoryLock));
pAllocInfo = CONTAINING_RECORD(Pointer, NPROTD_ALLOCATION, UserData);
if (pAllocInfo->Signature != NPROTD_MEMORY_SIGNATURE)
{
DEBUGP(DL_ERROR,
("ndisprotAuditFreeMem: unknown buffer 0x%p!\n", Pointer));
NdisReleaseSpinLock(&(ndisprotdMemoryLock));
#if DBG
DbgBreakPoint();
#endif
return;
}
pAllocInfo->Signature = (ULONG)'DEAD';
if (pAllocInfo->Prev != (PNPROTD_ALLOCATION)NULL)
{
pAllocInfo->Prev->Next = pAllocInfo->Next;
}
else
{
ndisprotdMemoryHead = pAllocInfo->Next;
}
if (pAllocInfo->Next != (PNPROTD_ALLOCATION)NULL)
{
pAllocInfo->Next->Prev = pAllocInfo->Prev;
}
else
{
ndisprotdMemoryTail = pAllocInfo->Prev;
}
ndisprotdAllocCount--;
NdisReleaseSpinLock(&(ndisprotdMemoryLock));
NdisFreeMemory(pAllocInfo, 0, 0);
}
VOID
ndisprotAuditShutdown(
VOID
)
{
if (ndisprotdInitDone)
{
if (ndisprotdAllocCount != 0)
{
DEBUGP(DL_ERROR, ("AuditShutdown: unfreed memory, %d blocks!\n",
ndisprotdAllocCount));
DEBUGP(DL_ERROR, ("MemoryHead: 0x%p, MemoryTail: 0x%p\n",
ndisprotdMemoryHead, ndisprotdMemoryTail));
DbgBreakPoint();
{
PNPROTD_ALLOCATION pAllocInfo;
while (ndisprotdMemoryHead != (PNPROTD_ALLOCATION)NULL)
{
pAllocInfo = ndisprotdMemoryHead;
DEBUGP(DL_INFO, ("AuditShutdown: will free 0x%p\n", pAllocInfo));
ndisprotAuditFreeMem(&(pAllocInfo->UserData));
}
}
}
ndisprotdInitDone = FALSE;
}
}
#define MAX_HD_LENGTH 128
VOID
DbgPrintHexDump(
IN PUCHAR pBuffer,
IN ULONG Length
)
/*++
Routine Description:
Print a hex dump of the given contiguous buffer. If the length
is too long, we truncate it.
Arguments:
pBuffer - Points to start of data to be dumped
Length - Length of above.
Return Value:
None
--*/
{
ULONG i;
if (Length > MAX_HD_LENGTH)
{
Length = MAX_HD_LENGTH;
}
for (i = 0; i < Length; i++)
{
//
// Check if we are at the end of a line
//
if ((i > 0) && ((i & 0xf) == 0))
{
DbgPrint("\n");
}
//
// Print addr if we are at start of a new line
//
if ((i & 0xf) == 0)
{
DbgPrint("%p ", pBuffer);
}
DbgPrint(" %02x", *pBuffer++);
}
//
// Terminate the last line.
//
if (Length > 0)
{
DbgPrint("\n");
}
}
#endif // DBG
#if DBG_SPIN_LOCK
ULONG ndisprotdSpinLockInitDone = 0;
NDIS_SPIN_LOCK ndisprotdLockLock;
VOID
ndisprotAllocateSpinLock(
IN PNPROT_LOCK pLock,
IN ULONG FileNumber,
IN ULONG LineNumber
)
{
if (ndisprotdSpinLockInitDone == 0)
{
ndisprotdSpinLockInitDone = 1;
NdisAllocateSpinLock(&(ndisprotdLockLock));
}
NdisAcquireSpinLock(&(ndisprotdLockLock));
pLock->Signature = NPROTL_SIG;
pLock->TouchedByFileNumber = FileNumber;
pLock->TouchedInLineNumber = LineNumber;
pLock->IsAcquired = 0;
pLock->OwnerThread = 0;
NdisAllocateSpinLock(&(pLock->NdisLock));
NdisReleaseSpinLock(&(ndisprotdLockLock));
}
VOID
ndisprotFreeSpinLock(
IN PNPROT_LOCK pLock,
IN ULONG FileNumber,
IN ULONG LineNumber
)
{
NdisAcquireSpinLock(&(ndisprotdLockLock));
pLock->Signature = NPROTL_SIG;
pLock->TouchedByFileNumber = FileNumber;
pLock->TouchedInLineNumber = LineNumber;
pLock->IsAcquired = 0;
pLock->OwnerThread = 0;
NdisFreeSpinLock(&(pLock->NdisLock));
NdisReleaseSpinLock(&(ndisprotdLockLock));
}
VOID
ndisprotFreeDbgLock(
VOID
)
{
ASSERT(ndisprotdSpinLockInitDone == 1);
ndisprotdSpinLockInitDone = 0;
NdisFreeSpinLock(&(ndisprotdLockLock));
}
VOID
ndisprotAcquireSpinLock(
IN PNPROT_LOCK pLock,
IN BOOLEAN DispatchLevel,
IN ULONG FileNumber,
IN ULONG LineNumber
)
{
PKTHREAD pThread;
pThread = KeGetCurrentThread();
if (DispatchLevel == TRUE)
{
NdisDprAcquireSpinLock(&(ndisprotdLockLock));
}
else
{
NdisAcquireSpinLock(&(ndisprotdLockLock));
}
if (pLock->Signature != NPROTL_SIG)
{
DbgPrint("Trying to acquire uninited lock 0x%x, File %c%c%c%c, Line %d\n",
pLock,
(CHAR)(FileNumber & 0xff),
(CHAR)((FileNumber >> 8) & 0xff),
(CHAR)((FileNumber >> 16) & 0xff),
(CHAR)((FileNumber >> 24) & 0xff),
LineNumber);
DbgBreakPoint();
}
if (pLock->IsAcquired != 0)
{
if (pLock->OwnerThread == pThread)
{
DbgPrint("Detected multiple locking!: pLock 0x%x, File %c%c%c%c, Line %d\n",
pLock,
(CHAR)(FileNumber & 0xff),
(CHAR)((FileNumber >> 8) & 0xff),
(CHAR)((FileNumber >> 16) & 0xff),
(CHAR)((FileNumber >> 24) & 0xff),
LineNumber);
DbgPrint("pLock 0x%x already acquired in File %c%c%c%c, Line %d\n",
pLock,
(CHAR)(pLock->TouchedByFileNumber & 0xff),
(CHAR)((pLock->TouchedByFileNumber >> 8) & 0xff),
(CHAR)((pLock->TouchedByFileNumber >> 16) & 0xff),
(CHAR)((pLock->TouchedByFileNumber >> 24) & 0xff),
pLock->TouchedInLineNumber);
DbgBreakPoint();
}
}
pLock->IsAcquired++;
if (DispatchLevel == TRUE)
{
NdisDprReleaseSpinLock(&(ndisprotdLockLock));
NdisDprAcquireSpinLock(&(pLock->NdisLock));
}
else
{
NdisReleaseSpinLock(&(ndisprotdLockLock));
NdisAcquireSpinLock(&(pLock->NdisLock));
}
//
// Mark this lock.
//
pLock->OwnerThread = pThread;
pLock->TouchedByFileNumber = FileNumber;
pLock->TouchedInLineNumber = LineNumber;
}
VOID
ndisprotReleaseSpinLock(
IN PNPROT_LOCK pLock,
IN BOOLEAN DispatchLevel,
IN ULONG FileNumber,
IN ULONG LineNumber
)
{
NdisDprAcquireSpinLock(&(ndisprotdLockLock));
if (pLock->Signature != NPROTL_SIG)
{
DbgPrint("Trying to release uninited lock 0x%x, File %c%c%c%c, Line %d\n",
pLock,
(CHAR)(FileNumber & 0xff),
(CHAR)((FileNumber >> 8) & 0xff),
(CHAR)((FileNumber >> 16) & 0xff),
(CHAR)((FileNumber >> 24) & 0xff),
LineNumber);
DbgBreakPoint();
}
if (pLock->IsAcquired == 0)
{
DbgPrint("Detected release of unacquired lock 0x%x, File %c%c%c%c, Line %d\n",
pLock,
(CHAR)(FileNumber & 0xff),
(CHAR)((FileNumber >> 8) & 0xff),
(CHAR)((FileNumber >> 16) & 0xff),
(CHAR)((FileNumber >> 24) & 0xff),
LineNumber);
DbgBreakPoint();
}
pLock->TouchedByFileNumber = FileNumber;
pLock->TouchedInLineNumber = LineNumber;
pLock->IsAcquired--;
pLock->OwnerThread = 0;
NdisDprReleaseSpinLock(&(ndisprotdLockLock));
if (DispatchLevel == TRUE)
{
NdisDprReleaseSpinLock(&(pLock->NdisLock));
}
else
{
NdisReleaseSpinLock(&(pLock->NdisLock));
}
}
#endif // DBG_SPIN_LOCK
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