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windows-nt/Source/XPSP1/NT/base/fs/npfs/npfskd/npfskd.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1992 Microsoft Corporation
Module Name:
Npfskd.c
Abstract:
KD Extension Api for examining Npfs specific data structures
Author:
Narayanan Ganapathy - 9/21/99
Environment:
User Mode.
Revision History:
--*/
#include "NpProcs.h"
//
// This file should not include wdbgexts.h as it includes windows.h
// windows.h defines a structure called _DCB that clashes with the DCB for NPFS.
// So the debugger functions are called from kdexts.c and indirectly called from this function
//
BOOLEAN NpDumpEventTableEntry(IN PEVENT_TABLE_ENTRY Ptr);
BOOLEAN NpDumpDataQueue(IN PDATA_QUEUE Ptr);
BOOLEAN NpDumpDataEntry(IN PDATA_ENTRY Ptr);
BOOLEAN NpDump(IN PVOID Ptr);
BOOLEAN NpDumpVcb(IN PVCB Ptr);
BOOLEAN NpDumpRootDcb(IN PROOT_DCB Ptr);
BOOLEAN NpDumpFcb(IN PFCB Ptr);
BOOLEAN NpDumpCcb(IN PCCB Ptr);
BOOLEAN NpDumpNonpagedCcb(IN PNONPAGED_CCB Ptr);
BOOLEAN NpDumpRootDcbCcb(IN PROOT_DCB_CCB Ptr);
extern VOID NpfskdPrint(PCHAR, ULONG_PTR);
extern VOID NpfskdPrintString(PCHAR, PCHAR);
extern VOID NpfskdPrintWideString(PWCHAR, PWCHAR);
extern BOOLEAN NpfskdReadMemory(PVOID, PVOID, ULONG);
extern ULONG NpfskdCheckControlC(VOID);
extern ULONG NpDumpFlags;
ULONG NpDumpCurrentColumn;
#define DumpField(Field) NpfskdPrint( #Field , (ULONG_PTR)Ptr->Field)
#define DumpListEntry(Links) \
NpfskdPrint( #Links "->Flink", (ULONG_PTR)Ptr->Links.Flink); \
NpfskdPrint( #Links "->Blink", (ULONG_PTR)Ptr->Links.Blink)
#define DumpName(Field) { \
ULONG i; \
WCHAR _String[64]; \
if (!NpfskdReadMemory(Ptr->Field, _String, sizeof(_String))) \
return FALSE; \
NpfskdPrintWideString(L#Field, _String); \
}
#define DumpTitle(Title, Value) { \
NpfskdPrint("\n "#Title"@ ", (Value)); \
}
#define TestForNull(Name) { \
if (targetPtr == NULL) { \
NpfskdPrintString("Cannot dump a NULL pointer\n", Name); \
return FALSE; \
} \
}
#define NP_READ_MEMORY(targetPtr, localStore, localPtr) \
{ \
if (!NpfskdReadMemory((targetPtr), \
&(localStore), \
sizeof(localStore))) { \
return FALSE; \
} \
localPtr = &(localStore); \
}
#define NPFS_FULL_INFORMATION 1
#define NPFS_WALK_LISTS 2
BOOLEAN
NpDumpEventTableEntry (
IN PEVENT_TABLE_ENTRY targetPtr
)
{
PEVENT_TABLE_ENTRY Ptr;
EVENT_TABLE_ENTRY Event;
TestForNull ("NpDumpEventTableEntry");
DumpTitle (EventTableEntry, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, Event, Ptr);
DumpField (Ccb);
DumpField (NamedPipeEnd);
DumpField (EventHandle);
DumpField (Event);
DumpField (KeyValue);
DumpField (Process);
return TRUE;
}
BOOLEAN NpDumpDataQueue (
IN PDATA_QUEUE targetPtr
)
{
PDATA_ENTRY Entry;
DATA_ENTRY DataEntry;
PDATA_QUEUE Ptr;
DATA_QUEUE Dqueue;
TestForNull ("NpDumpDataQueue");
DumpTitle (DataQueue, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, Dqueue, Ptr);
DumpField (QueueState);
DumpField (BytesInQueue);
DumpField (EntriesInQueue);
DumpField (Quota);
DumpField (QuotaUsed);
DumpField (Queue.Flink);
DumpField (Queue.Blink);
DumpField (NextByteOffset);
Entry = (PDATA_ENTRY) Ptr->Queue.Flink;
if (!(NpDumpFlags & NPFS_WALK_LISTS)) {
return TRUE;
}
while (Entry != (PDATA_ENTRY) &Ptr->Queue){
if (!NpfskdReadMemory(Entry, &DataEntry, sizeof(DataEntry))) {
return FALSE;
}
NpDumpDataEntry( Entry );
if (NpfskdCheckControlC()) {
NpfskdPrintString("^C Typed. Bailing out","");
return FALSE;
}
Entry = (PDATA_ENTRY) DataEntry.Queue.Flink;
}
return TRUE;
}
BOOLEAN NpDumpDataEntry (
IN PDATA_ENTRY targetPtr
)
{
DATA_ENTRY Dentry;
PDATA_ENTRY Ptr;
TestForNull ("NpDumpDataEntry");
DumpTitle (DataEntry, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, Dentry, Ptr);
DumpField (DataEntryType);
DumpField (Queue.Flink);
DumpField (Irp);
DumpField (DataSize);
DumpField (SecurityClientContext);
return TRUE;
}
BOOLEAN NpDump (
IN PVOID Ptr
)
/*++
Routine Description:
This routine determines the type of internal record reference by ptr and
calls the appropriate dump routine.
Arguments:
Ptr - Supplies the pointer to the record to be dumped
Return Value:
None
--*/
{
NODE_TYPE_CODE NodeType;
PNODE_TYPE_CODE pNodeType;
BOOLEAN Ret;
//
// We'll switch on the node type code
//
NP_READ_MEMORY(Ptr, NodeType, pNodeType);
switch (NodeType) {
case NPFS_NTC_VCB: Ret = NpDumpVcb((PVCB)Ptr); break;
case NPFS_NTC_ROOT_DCB: Ret = NpDumpRootDcb((PDCB)Ptr); break;
case NPFS_NTC_FCB: Ret = NpDumpFcb((PFCB)Ptr); break;
case NPFS_NTC_CCB: Ret = NpDumpCcb((PCCB)Ptr); break;
case NPFS_NTC_NONPAGED_CCB: Ret = NpDumpNonpagedCcb((PNONPAGED_CCB)Ptr); break;
case NPFS_NTC_ROOT_DCB_CCB: Ret = NpDumpRootDcbCcb((PROOT_DCB_CCB)Ptr); break;
default :
Ret = TRUE;
NpfskdPrint("NpDump - Unknown Node type code ", NodeType);
break;
}
return Ret;
}
BOOLEAN NpDumpVcb (
IN PVCB targetPtr
)
/*++
Routine Description:
Dump an Vcb structure
Arguments:
Ptr - Supplies the Device record to be dumped
Return Value:
None
--*/
{
VCB Vcb;
PVCB Ptr;
TestForNull ("NpDumpVcb");
DumpTitle (Vcb, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, Vcb, Ptr);
DumpField (NodeTypeCode);
DumpField (RootDcb);
DumpField (OpenCount);
NpDump (Ptr->RootDcb);
return TRUE;
}
BOOLEAN NpDumpRootDcb (
IN PROOT_DCB targetPtr
)
/*++
Routine Description:
Dump a root dcb structure
Arguments:
Ptr - Supplies the Root Dcb record to be dumped
Return Value:
None
--*/
{
PLIST_ENTRY Links;
LIST_ENTRY NextEntry;
ROOT_DCB RootDcb;
PROOT_DCB Ptr;
TestForNull ("NpDumpRootDcb");
DumpTitle (RootDcb, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, RootDcb, Ptr);
DumpField (NodeTypeCode);
DumpListEntry (ParentDcbLinks);
DumpField (ParentDcb);
DumpField (OpenCount);
DumpField (FullFileName.Length);
DumpField (FullFileName.Buffer);
DumpName (FullFileName.Buffer);
DumpField (LastFileName.Length);
DumpName (LastFileName.Buffer);
DumpListEntry (Specific.Dcb.NotifyFullQueue);
DumpListEntry (Specific.Dcb.NotifyPartialQueue);
DumpListEntry (Specific.Dcb.ParentDcbQueue);
Links = Ptr->Specific.Dcb.ParentDcbQueue.Flink;
if (!(NpDumpFlags & NPFS_WALK_LISTS)) {
return TRUE;
}
while (Links != &Ptr->Specific.Dcb.ParentDcbQueue) {
if (!NpfskdReadMemory(Links, &NextEntry, sizeof(NextEntry))) {
return FALSE;
}
if (!NpDump(CONTAINING_RECORD(Links, FCB, ParentDcbLinks))) {
return FALSE;
}
if (NpfskdCheckControlC()) {
NpfskdPrintString("^C Typed. Bailing out","");
return FALSE;
}
Links = NextEntry.Flink;
}
return TRUE;
}
BOOLEAN NpDumpFcb (
IN PFCB targetPtr
)
/*++
Routine Description:
Dump an Fcb structure
Arguments:
Ptr - Supplies the Fcb record to be dumped
Return Value:
None
--*/
{
PLIST_ENTRY Links;
LIST_ENTRY NextEntry;
FCB Fcb;
PFCB Ptr;
TestForNull ("NpDumpFcb");
DumpTitle (Fcb, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, Fcb , Ptr);
DumpField (NodeTypeCode);
DumpField (FullFileName.Length);
DumpField (FullFileName.Buffer);
DumpName (FullFileName.Buffer);
if (NpDumpFlags & NPFS_FULL_INFORMATION) {
DumpListEntry (ParentDcbLinks);
DumpField (ParentDcb);
DumpField (OpenCount);
DumpField (LastFileName.Length);
DumpName (LastFileName.Buffer);
DumpField (Specific.Fcb.NamedPipeConfiguration);
DumpField (Specific.Fcb.NamedPipeType);
DumpField (Specific.Fcb.MaximumInstances);
DumpField (Specific.Fcb.DefaultTimeOut.LowPart);
DumpField (Specific.Fcb.DefaultTimeOut.HighPart);
DumpListEntry (Specific.Fcb.CcbQueue);
}
if (!(NpDumpFlags & NPFS_WALK_LISTS)) {
return TRUE;
}
Links = Ptr->Specific.Fcb.CcbQueue.Flink;
while (Links != &Ptr->Specific.Fcb.CcbQueue) {
if (!NpfskdReadMemory(Links, &NextEntry, sizeof(NextEntry))) {
return FALSE;
}
if (!NpDump(CONTAINING_RECORD(Links, CCB, CcbLinks))) {
return FALSE;
}
if (NpfskdCheckControlC()) {
NpfskdPrintString("^C Typed. Bailing out","");
return FALSE;
}
Links = NextEntry.Flink;
}
return TRUE;
}
BOOLEAN NpDumpCcb (
IN PCCB targetPtr
)
/*++
Routine Description:
Dump a Ccb structure
Arguments:
Ptr - Supplies the Ccb record to be dumped
Return Value:
None
--*/
{
PCCB Ptr;
CCB Ccb;
TestForNull ("NpDumpCcb");
DumpTitle (Ccb, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, Ccb, Ptr);
DumpField (NodeTypeCode);
DumpField (Fcb);
DumpField (FileObject[FILE_PIPE_CLIENT_END]);
DumpField (FileObject[FILE_PIPE_SERVER_END]);
if (NpDumpFlags & NPFS_FULL_INFORMATION) {
DumpField (NamedPipeState);
DumpField (SecurityClientContext);
DumpListEntry (ListeningQueue);
}
if (!NpDumpDataQueue(&targetPtr->DataQueue[FILE_PIPE_CLIENT_END])) {
return FALSE;
}
if (!NpDumpDataQueue(&targetPtr->DataQueue[FILE_PIPE_SERVER_END])) {
return FALSE;
}
return NpDump (Ptr->NonpagedCcb);
}
BOOLEAN NpDumpNonpagedCcb (
IN PNONPAGED_CCB targetPtr
)
/*++
Routine Description:
Dump a Nonpaged Ccb structure
Arguments:
Ptr - Supplies the Nonpaged Ccb record to be dumped
Return Value:
None
--*/
{
NONPAGED_CCB Ccb;
PNONPAGED_CCB Ptr;
TestForNull ("NpDumpNonpagedCcb");
DumpTitle (NonpagedCcb, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, Ccb, Ptr);
DumpField (NodeTypeCode);
DumpField (EventTableEntry[FILE_PIPE_CLIENT_END]);
DumpField (EventTableEntry[FILE_PIPE_SERVER_END]);
return TRUE;
}
BOOLEAN NpDumpRootDcbCcb (
IN PROOT_DCB_CCB targetPtr
)
/*++
Routine Description:
Dump a Root Dcb Ccb structure
Arguments:
Ptr - Supplies the Root Dcb Ccb record to be dumped
Return Value:
None
--*/
{
ROOT_DCB_CCB RootDcbCcb;
PROOT_DCB_CCB Ptr;
TestForNull ("NpDumpRootDcbCcb");
DumpTitle (RootDcbCcb, (ULONG_PTR)(targetPtr));
NP_READ_MEMORY(targetPtr, RootDcbCcb, Ptr);
DumpField (NodeTypeCode);
DumpField (IndexOfLastCcbReturned);
return TRUE;
}
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