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1359 lines
32 KiB
1359 lines
32 KiB
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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lpc.c
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Abstract:
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WinDbg Extension Api
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Author:
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Ramon J San Andres (ramonsa) 8-Nov-1993
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Environment:
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User Mode.
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Revision History:
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Adrian Marinescu (adrmarin) 20-April-1999
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Change the most of the original code.
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To activate the previous extension define OLD_LPC_EXTENSION_IS_BETTER
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--*/
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#include "precomp.h"
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#pragma hdrstop
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//
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// Nuke these definitions from kxmips.h as they conflict with
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// LPC_MESSAGE structure in ntlpcapi.h
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//
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#undef s1
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#undef s2
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char *LpcpMessageTypeName[] = {
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"UNUSED_MSG_TYPE",
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"LPC_REQUEST",
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"LPC_REPLY",
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"LPC_DATAGRAM",
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"LPC_LOST_REPLY",
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"LPC_PORT_CLOSED",
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"LPC_CLIENT_DIED",
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"LPC_EXCEPTION",
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"LPC_DEBUG_EVENT",
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"LPC_ERROR_EVENT",
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"LPC_CONNECTION_REQUEST"
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};
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typedef BOOLEAN (*ENUM_TYPE_ROUTINE)(
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IN ULONG64 pObjectHeader,
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IN PVOID Parameter
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);
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VOID
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DumpPortInfo (
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ULONG64 PortObject,
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BOOLEAN DisplayRelated
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);
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BOOLEAN
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LpcpDumpMessage(
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IN char *Indent,
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IN ULONG64 pMsg,
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IN ULONG DisplayMessage
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);
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VOID
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LpcpGetProcessImageName (
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IN ULONG64 pProcess,
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IN OUT PUCHAR ImageFileName,
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IN ULONG ImageFileNameSize
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);
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VOID
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DumpMessagesInfo ();
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VOID
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SearchForMessage (
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ULONG Message
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);
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VOID
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DumpPortDataInfo (
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ULONG64 PortObject
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);
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VOID
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DumpRunDownQueue (
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ULONG64 PortObject
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);
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VOID
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SearchThreadsForMessage (
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ULONG Message
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);
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BOOLEAN
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SearchThreads (
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ULONG64 Thread
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);
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//
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// Global variables
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//
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static WCHAR ObjectNameBuffer[ MAX_PATH ];
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static ULONG64 PortObjectFound = 0;
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static ULONG64 LpcPortObjectType = 0;
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static ULONG64 LpcWaitablePortObjectType = 0;
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static ULONG64 LastSeverPortDisplayied = 0;
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static int DoPoolSearch = 0;
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ULONG GetValueAt(
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ULONG64 P
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)
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{
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ULONG Result;
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ULONG Value;
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if (!ReadMemory( P,
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&Value,
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sizeof(Value),
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&Result)) {
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dprintf( " Failed to read value at 0x%lx\n", P );
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return 0;
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}
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return Value;
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}
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BOOLEAN GetBooleanValueAt(
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ULONG64 P
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)
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{
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ULONG Result;
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BOOLEAN Value;
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if (!ReadMemory( P,
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&Value,
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sizeof(Value),
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&Result)) {
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dprintf( " Failed to read value at 0x%lx\n", P );
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return 0;
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}
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return Value;
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}
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VOID
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LpcHelp ()
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{
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dprintf("Usage:\n\
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!lpc - Display this help\n\
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!lpc message [MessageId] - Display the message with a given ID and all related information\n\
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If MessageId is not specified, dump all messages\n\
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!lpc port [PortAddress] - Display the port information\n\
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!lpc scan PortAddress - Search this port and any connected port\n\
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!lpc thread [ThreadAddr] - Search the thread in rundown port queues and display the port info\n\
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If ThreadAddr is missing, display all threads marked as doing some lpc operations\n\
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!lpc PoolSearch - Toggle ON / OFF searching the current message in the kernel pool\n\
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\n");
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}
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ULONG64
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LookupProcessUniqueId (
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HANDLE UniqueId
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)
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{
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ULONG64 ProcessHead, Process;
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ULONG64 ProcessNext;
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ULONG Off;
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//
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// Get the process list head
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//
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ProcessHead = GetExpression( "nt!PsActiveProcessHead" );
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if (!ProcessHead) {
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return 0;
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}
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if (!ReadPointer(ProcessHead, &ProcessNext))
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{
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return 0;
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}
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//
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// Walk through the list and find the process with the desired Id
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//
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GetFieldOffset("nt!_EPROCESS", "ActiveProcessLinks", &Off);
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while(ProcessNext != 0 && ProcessNext != ProcessHead) {
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ULONG64 Id;
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Process = ProcessNext - Off;
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if (GetFieldValue(Process, "nt!_EPROCESS", "UniqueProcessId", Id)) {
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dprintf("Cannot read nt!_EPROCESS at %p\n", Process);
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}
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if (UniqueId == (HANDLE) Id) {
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return Process;
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}
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if (!ReadPointer(ProcessNext, &ProcessNext))
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{
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return 0;
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}
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if (CheckControlC()) {
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return 0;
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}
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}
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return 0;
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}
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BOOLEAN
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FetchGlobalVariables()
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{
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//
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// Save the LPC object type information
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//
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LpcPortObjectType = GetPointerValue("nt!LpcPortObjectType") ;
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if (!LpcPortObjectType) {
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dprintf("Reading LpcPortObjectType failed\n");
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}
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LpcWaitablePortObjectType = GetPointerValue("nt!LpcWaitablePortObjectType") ;
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if (!LpcWaitablePortObjectType) {
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dprintf("Reading LpcWaitablePortObjectType failed\n");
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}
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return TRUE;
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}
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BOOLEAN
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LpcWalkObjectsByType(
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IN ULONG64 pObjectType,
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IN ENUM_TYPE_ROUTINE EnumRoutine,
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IN PVOID Parameter
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)
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{
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ULONG Result;
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ULONG64 Head, Next;
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ULONG64 pObjectHeader;
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BOOLEAN WalkingBackwards;
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ULONG64 pCreatorInfo, ObjBlink;
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ULONG TotalNumberOfObjects, Off, CreatorOff, SizeOfCreat;
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if (pObjectType == 0) {
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return FALSE;
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}
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if ( GetFieldValue( pObjectType,"nt!_OBJECT_TYPE",
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"TotalNumberOfObjects", TotalNumberOfObjects) ) {
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dprintf( "%08p: Unable to read object type\n", pObjectType );
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return FALSE;
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}
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dprintf( "Scanning %u objects\n", TotalNumberOfObjects & 0x00FFFFFF);
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GetFieldOffset("nt!_OBJECT_TYPE", "TypeList", &Off);
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GetFieldOffset("nt!_OBJECT_HEADER_CREATOR_INFO", "TypeList", &CreatorOff);
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SizeOfCreat = GetTypeSize("OBJECT_HEADER_CREATOR_INFO");
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Head = pObjectType + Off;
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GetFieldValue(Head, "nt!_LIST_ENTRY", "Flink", Next);
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GetFieldValue(Head, "nt!_LIST_ENTRY", "Blink", ObjBlink);
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WalkingBackwards = FALSE;
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if ((TotalNumberOfObjects & 0x00FFFFFF) != 0 && Next == Head) {
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dprintf( "*** objects of the same type are only linked together if the %x flag is set in NtGlobalFlags\n",
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FLG_MAINTAIN_OBJECT_TYPELIST
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);
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return TRUE;
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}
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while (Next != Head) {
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ULONG64 Flink, Blink;
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if ( GetFieldValue(Next, "nt!_LIST_ENTRY", "Flink", Flink) ||
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GetFieldValue(Next, "nt!_LIST_ENTRY", "Blink", Blink)) {
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if (WalkingBackwards) {
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dprintf( "%08p: Unable to read object type list\n", Next );
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return FALSE;
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}
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//
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// Switch to walk in reverse direction
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//
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WalkingBackwards = TRUE ;
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Next = ObjBlink;
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dprintf( "%08lx: Switch to walking backwards\n", Next );
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continue;
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}
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pCreatorInfo = ( Next - CreatorOff );
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pObjectHeader = (pCreatorInfo + SizeOfCreat);
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if ( GetFieldValue( pObjectHeader,"nt!_OBJECT_HEADER","Flags", Result) ) {
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dprintf( "%08p: Not a valid object header\n", pObjectHeader );
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return FALSE;
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}
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if (!(EnumRoutine)( pObjectHeader, Parameter )) {
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return FALSE;
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}
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if ( CheckControlC() ) {
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return FALSE;
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}
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if (WalkingBackwards) {
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Next = Blink;
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} else {
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Next = Flink;
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}
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}
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return TRUE;
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}
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BOOLEAN
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LpcCaptureObjectName(
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IN ULONG64 pObjectHeader,
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IN PWSTR Buffer,
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IN ULONG BufferSize
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)
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{
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ULONG Result;
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PWSTR s1 = L"*** unable to get object name";
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ULONG64 pNameInfo;
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UNICODE_STRING64 ObjectName;
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Buffer[ 0 ] = UNICODE_NULL;
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KD_OBJECT_HEADER_TO_NAME_INFO( pObjectHeader, &pNameInfo );
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if (pNameInfo == 0) {
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return TRUE;
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}
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if ( GetFieldValue( pNameInfo, "nt!_OBJECT_HEADER_NAME_INFO",
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"Name.Length", ObjectName.Length) ) {
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wcscpy( Buffer, s1 );
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return FALSE;
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}
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GetFieldValue( pNameInfo, "nt!_OBJECT_HEADER_NAME_INFO","Name.Buffer", ObjectName.Buffer);
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ObjectName.MaximumLength = ObjectName.Length;
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if (ObjectName.Length >= BufferSize ) {
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ObjectName.Length = (unsigned short)BufferSize - sizeof( UNICODE_NULL );
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}
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if (ObjectName.Length != 0) {
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if (!ReadMemory( ObjectName.Buffer,
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Buffer,
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ObjectName.Length,
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&Result
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)) {
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wcscpy( Buffer, s1 );
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} else {
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Buffer[ ObjectName.Length / sizeof( WCHAR ) ] = UNICODE_NULL;
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}
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}
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return TRUE;
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}
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VOID
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LpcpGetProcessImageName(
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IN ULONG64 pProcess,
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IN OUT PUCHAR ImageFileName,
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IN ULONG ImageFileNameSize
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)
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{
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ULONG Result;
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UCHAR local[32];
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PUCHAR s;
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int i;
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if (pProcess != 0) {
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if (!GetFieldValue( pProcess,"nt!_EPROCESS",
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"ImageFileName", local)) {
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i = 16;
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s = local;
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while (i--) {
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if (*s == '\0') {
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if (i == 15) {
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i = 0;
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}
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break;
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}
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if (*s < ' ' || *s >= '|') {
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i = 0;
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break;
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}
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s += 1;
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}
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if (i != 0) {
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if (StringCchCopy( ImageFileName, ImageFileNameSize, local ) != S_OK)
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{
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if (ImageFileName) ImageFileName[0] = 0;
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}
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return;
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}
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}
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}
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if (ImageFileName) ImageFileName[0] = 0;
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return;
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}
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#define LPCP_ZONE_MESSAGE_ALLOCATED (USHORT)0x8000
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BOOLEAN
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LpcpDumpMessage(
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IN char *Indent,
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IN ULONG64 pMsg,
|
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IN ULONG DisplayMessage
|
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)
|
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{
|
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ULONG Result;
|
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ULONG i;
|
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ULONG cb;
|
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ULONG MsgData[ 8 ];
|
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UCHAR ImageFileName[ 32 ];
|
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ULONG MessageId0, Off, SizeOfMsg, DataLength;
|
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BOOLEAN MessageMatch = FALSE;
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|
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if ( GetFieldValue( pMsg, "nt!_LPCP_MESSAGE",
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"Request.MessageId", MessageId0) ) {
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dprintf( "%s*** unable to read LPC message at %08p\n", Indent, pMsg );
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return MessageMatch;
|
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}
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|
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if (DisplayMessage != 0) {
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|
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if (DisplayMessage == MessageId0) {
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MessageMatch = TRUE;
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|
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} else {
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|
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return FALSE;
|
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}
|
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}
|
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|
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GetFieldOffset("nt!_LPCP_MESSAGE", "Entry", &Off);
|
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SizeOfMsg = GetTypeSize("nt!_LPCP_MESSAGE");
|
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|
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InitTypeRead(pMsg, nt!_LPCP_MESSAGE);
|
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|
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if (MessageId0 == 0) {
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|
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dprintf( "%s%04x %08x - %s Id=%04x From: %04p.%04p\n",
|
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Indent,
|
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(ULONG) ReadField(ZoneIndex) & ~LPCP_ZONE_MESSAGE_ALLOCATED,
|
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pMsg,
|
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(ULONG) ReadField(Reserved0) != 0 ? "Busy" : "Free",
|
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MessageId0,
|
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ReadField(Request.ClientId.UniqueProcess),
|
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ReadField(Request.ClientId.UniqueThread)
|
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);
|
|
|
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return MessageMatch;
|
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}
|
|
|
|
//
|
|
// Getting the process image affect dramaticaly the performances
|
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//
|
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|
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// LpcpGetProcessImageName( LookupProcessUniqueId(Msg.Request.ClientId.UniqueProcess), ImageFileName );
|
|
|
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dprintf( "%s%s%04lx %p - %s Id=%08lx From: %04p.%04p Context=%08p",
|
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Indent,
|
|
MessageId0 == DisplayMessage ? "*" : "",
|
|
(ULONG) ReadField(ZoneIndex) & ~LPCP_ZONE_MESSAGE_ALLOCATED,
|
|
pMsg,
|
|
(ULONG) ReadField(Reserved0) != 0 ? "Busy" : "Free",
|
|
MessageId0,
|
|
ReadField(Request.ClientId.UniqueProcess),
|
|
ReadField(Request.ClientId.UniqueThread),
|
|
ReadField(PortContext)
|
|
);
|
|
|
|
if (ReadField(Entry.Flink) != pMsg + Off) {
|
|
|
|
dprintf( " [%p . %p]", ReadField(Entry.Blink), ReadField(Entry.Flink) );
|
|
}
|
|
|
|
dprintf( "\n%s Length=%08x Type=%08x (%s)\n",
|
|
Indent,
|
|
(ULONG) ReadField(Request.u1.Length),
|
|
(ULONG) ReadField(Request.u2.ZeroInit),
|
|
(ULONG) ReadField(Request.u2.s2.Type) > LPC_CONNECTION_REQUEST ? LpcpMessageTypeName[ 0 ]
|
|
: LpcpMessageTypeName[ (ULONG) ReadField(Request.u2.s2.Type) ]
|
|
);
|
|
|
|
cb = (DataLength = (ULONG) ReadField(Request.u1.s1.DataLength)) > sizeof( MsgData ) ?
|
|
sizeof( MsgData ) :
|
|
DataLength;
|
|
|
|
if ( !ReadMemory( (pMsg + SizeOfMsg),
|
|
MsgData,
|
|
cb,
|
|
&Result) ) {
|
|
|
|
dprintf( "%s*** unable to read LPC message data at %08x\n", Indent, pMsg + 1 );
|
|
return MessageMatch;
|
|
}
|
|
|
|
dprintf( "%s Data:", Indent );
|
|
|
|
for (i=0; i<(DataLength / sizeof( ULONG )); i++) {
|
|
|
|
if (i > 5) {
|
|
|
|
break;
|
|
}
|
|
|
|
dprintf( " %08x", MsgData[ i ] );
|
|
}
|
|
|
|
dprintf( "\n" );
|
|
return MessageMatch;
|
|
}
|
|
|
|
|
|
BOOLEAN
|
|
FindPortCallback(
|
|
IN ULONG64 pObjectHeader,
|
|
IN PVOID Parameter
|
|
)
|
|
{
|
|
ULONG Result;
|
|
WCHAR CapturedName[MAX_PATH];
|
|
ULONG64 PortObject, ConnectionPort;
|
|
ULONG64 Addr=0;
|
|
|
|
if (Parameter) Addr = *((PULONG64) Parameter);
|
|
|
|
PortObject = KD_OBJECT_HEADER_TO_OBJECT(pObjectHeader);
|
|
|
|
if ( GetFieldValue( PortObject,
|
|
"nt!_LPCP_PORT_OBJECT",
|
|
"ConnectionPort",
|
|
ConnectionPort) ) {
|
|
|
|
dprintf( "%08p: Unable to read port object\n", PortObject );
|
|
}
|
|
|
|
InitTypeRead(PortObject, nt!_LPCP_PORT_OBJECT);
|
|
if ((Addr == 0)||
|
|
(Addr == PortObject) ||
|
|
(Addr == ConnectionPort) ||
|
|
(Addr == ReadField(ConnectedPort))
|
|
) {
|
|
|
|
LpcCaptureObjectName( pObjectHeader, ObjectNameBuffer, MAX_PATH );
|
|
|
|
dprintf( "%8lx Port: 0x%08p Connection: 0x%08p Communication: 0x%08p '%ws' \n",
|
|
(ULONG) ReadField(Flags),
|
|
PortObject,
|
|
ConnectionPort,
|
|
ReadField(ConnectedPort),
|
|
ObjectNameBuffer
|
|
);
|
|
|
|
|
|
DumpRunDownQueue(PortObject);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
VOID
|
|
DumpServerPort(
|
|
ULONG64 PortObject,
|
|
ULONG64 PortInfo
|
|
)
|
|
{
|
|
ULONG SemaphoreBuffer[8];
|
|
ULONG64 Head, Next;
|
|
ULONG Result;
|
|
ULONG64 Msg;
|
|
ULONG MsgCount;
|
|
ULONG64 pObjectHeader;
|
|
UCHAR ImageFileName[ 32 ];
|
|
ULONG64 HandleCount, PointerCount;
|
|
|
|
if (LastSeverPortDisplayied == PortObject) {
|
|
|
|
//
|
|
// This port was already displayied
|
|
//
|
|
|
|
return;
|
|
}
|
|
LastSeverPortDisplayied = PortObject;
|
|
|
|
pObjectHeader = KD_OBJECT_TO_OBJECT_HEADER(PortObject);
|
|
|
|
if ( GetFieldValue(pObjectHeader, "nt!_OBJECT_HEADER", "HandleCount", HandleCount) ) {
|
|
dprintf(" *** %08p: Unable to read _OBJECT_HEADER\n", pObjectHeader );
|
|
}
|
|
|
|
GetFieldValue(pObjectHeader, "nt!_OBJECT_HEADER", "PointerCount",PointerCount);
|
|
LpcCaptureObjectName( pObjectHeader, ObjectNameBuffer, MAX_PATH );
|
|
|
|
dprintf( "\n");
|
|
|
|
dprintf( "Server connection port %08p Name: %ws\n", PortObject , ObjectNameBuffer);
|
|
dprintf( " Handles: %ld References: %ld\n", (ULONG)HandleCount, (ULONG)PointerCount);
|
|
|
|
InitTypeRead(PortInfo, nt!_LPCP_PORT_OBJECT);
|
|
|
|
LpcpGetProcessImageName( ReadField(ServerProcess), ImageFileName, sizeof(ImageFileName) );
|
|
|
|
dprintf( " Server process : %08p (%s)\n", ReadField(ServerProcess), ImageFileName);
|
|
dprintf( " Queue semaphore : %08p\n", ReadField(MsgQueue.Semaphore) );
|
|
|
|
if ( !ReadMemory( ReadField(MsgQueue.Semaphore),
|
|
SemaphoreBuffer,
|
|
sizeof( SemaphoreBuffer ),
|
|
&Result) ) {
|
|
dprintf(" *** %08p: Unable to read semaphore contents\n", ReadField(MsgQueue.Semaphore) );
|
|
}
|
|
else {
|
|
ULONG Off;
|
|
|
|
dprintf( " Semaphore state %ld (0x%lx) \n", SemaphoreBuffer[1], SemaphoreBuffer[1] );
|
|
|
|
//
|
|
// Walk list of messages queued to this port. Remove each message from
|
|
// the list and free it.
|
|
//
|
|
|
|
GetFieldOffset("nt!_LPCP_PORT_OBJECT", "MsgQueue.ReceiveHead", &Off);
|
|
|
|
Head = PortObject + Off;
|
|
|
|
if (Head) {
|
|
|
|
if ( !ReadPointer( Head, &Next ) ) {
|
|
dprintf( " Failed to read Head 0x%p\n", Head );
|
|
return;
|
|
}
|
|
|
|
MsgCount = 0;
|
|
|
|
while ((Next != 0) && (Next != Head)) {
|
|
|
|
if (MsgCount == 0) {
|
|
|
|
dprintf (" Messages in queue:\n");
|
|
}
|
|
|
|
Msg = Next;
|
|
|
|
LpcpDumpMessage(" ", Msg, 0);
|
|
|
|
if ( !ReadPointer( Next, &Next ) ) {
|
|
|
|
dprintf( " Error reading 0x%p\n", Next );
|
|
return;
|
|
}
|
|
|
|
MsgCount++;
|
|
|
|
if ( CheckControlC() ) {
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (MsgCount) {
|
|
|
|
dprintf( " The message queue contains %ld messages\n", MsgCount );
|
|
}
|
|
else {
|
|
|
|
dprintf( " The message queue is empty\n");
|
|
}
|
|
}
|
|
|
|
DumpPortDataInfo(PortObject);
|
|
DumpRunDownQueue(PortObject);
|
|
}
|
|
}
|
|
|
|
|
|
VOID
|
|
DumpPortDataInfo(
|
|
ULONG64 PortObject
|
|
)
|
|
{
|
|
ULONG64 Head, Next;
|
|
ULONG64 Msg;
|
|
ULONG MsgCount, Off, EntryOff;
|
|
|
|
GetFieldOffset("nt!_LPCP_MESSAGE", "Entry", &EntryOff);
|
|
GetFieldOffset("nt!_LPCP_PORT_OBJECT", "LpcDataInfoChainHead.Flink", &Off);
|
|
|
|
Head = PortObject + Off;
|
|
|
|
if (Head) {
|
|
|
|
Next = 0;
|
|
if (!ReadPointer( Head, &Next ))
|
|
{
|
|
return;
|
|
}
|
|
|
|
MsgCount = 0;
|
|
|
|
while ((Next != 0) && (Next != Head)) {
|
|
|
|
if (MsgCount == 0) {
|
|
|
|
dprintf ("\n Messages in LpcDataInfoChainHead:\n");
|
|
}
|
|
|
|
Msg = ( Next - EntryOff );
|
|
|
|
LpcpDumpMessage(" ", Msg, 0);
|
|
|
|
if (!ReadPointer( Next, &Next ))
|
|
{
|
|
return;
|
|
}
|
|
|
|
MsgCount++;
|
|
|
|
if ( CheckControlC() ) {
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (MsgCount) {
|
|
|
|
dprintf( " The LpcDataInfoChainHead queue contains %ld messages\n", MsgCount );
|
|
}
|
|
else {
|
|
|
|
dprintf( " The LpcDataInfoChainHead queue is empty\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
VOID
|
|
DumpRunDownQueue(
|
|
ULONG64 PortObject
|
|
)
|
|
{
|
|
ULONG64 Head, Next;
|
|
ULONG64 Thread;
|
|
ULONG Count;
|
|
ULONG Off, ChainOff;
|
|
|
|
GetFieldOffset("nt!_ETHREAD", "LpcReplyChain", &ChainOff);
|
|
GetFieldOffset("nt!_LPCP_PORT_OBJECT", "LpcDataInfoChainHead.Flink", &Off);
|
|
Head = PortObject + Off;
|
|
Next = 0;
|
|
|
|
if (!ReadPointer( Head, &Next))
|
|
{
|
|
return;
|
|
}
|
|
|
|
Count = 0;
|
|
|
|
while ((Next != 0) && (Next != Head)) {
|
|
|
|
if (Count == 0) {
|
|
|
|
dprintf (" Threads in RunDown queue : ");
|
|
}
|
|
|
|
Thread = ( Next - ChainOff);
|
|
|
|
dprintf (" 0x%08p", Thread);
|
|
|
|
if (!ReadPointer( Next, &Next))
|
|
{
|
|
return;
|
|
}
|
|
|
|
Count++;
|
|
|
|
if ( CheckControlC() ) {
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (Count) {
|
|
|
|
dprintf("\n");
|
|
}
|
|
}
|
|
|
|
|
|
VOID
|
|
DumpCommunicationPort(
|
|
ULONG64 PortObject,
|
|
ULONG64 PortInfo,
|
|
BOOLEAN DisplayRelated
|
|
)
|
|
{
|
|
ULONG SemaphoreBuffer[8];
|
|
ULONG64 Head, Next;
|
|
ULONG Result;
|
|
ULONG64 Msg;
|
|
|
|
ULONG64 pObjectHeader;
|
|
ULONG64 HandleCount, PointerCount;
|
|
ULONG Flags;
|
|
|
|
pObjectHeader = KD_OBJECT_TO_OBJECT_HEADER(PortObject);
|
|
|
|
if ( GetFieldValue(pObjectHeader, "nt!_OBJECT_HEADER", "HandleCount", HandleCount) ) {
|
|
dprintf(" *** %08p: Unable to read object header\n", pObjectHeader );
|
|
}
|
|
|
|
GetFieldValue(pObjectHeader, "nt!_OBJECT_HEADER", "PointerCount",PointerCount);
|
|
dprintf( "\n");
|
|
|
|
if ( GetFieldValue(PortInfo, "nt!_LPCP_PORT_OBJECT", "Flags", Flags) ) {
|
|
dprintf(" *** %08p: Unable to read port object\n", PortInfo );
|
|
}
|
|
|
|
if ((Flags & PORT_TYPE) == SERVER_COMMUNICATION_PORT) {
|
|
|
|
dprintf( "Server communication port 0x%08lx\n", PortObject);
|
|
}
|
|
else if ((Flags & PORT_TYPE) == CLIENT_COMMUNICATION_PORT) {
|
|
|
|
dprintf( "Client communication port 0x%08p\n", PortObject);
|
|
}
|
|
else {
|
|
dprintf( "Invalid port flags 0x%08p, 0x%08lx\n", PortObject, Flags);
|
|
return;
|
|
}
|
|
|
|
dprintf( " Handles: %ld References: %ld\n", (ULONG)HandleCount, (ULONG)PointerCount);
|
|
|
|
DumpPortDataInfo(PortObject);
|
|
DumpRunDownQueue(PortObject);
|
|
|
|
if (DisplayRelated) {
|
|
ULONG64 ConnectedPort, ConnectionPort;
|
|
|
|
InitTypeRead(PortInfo, nt!_LPCP_PORT_OBJECT);
|
|
dprintf( " Connected port: 0x%08p Server connection port: 0x%08p\n",
|
|
(ConnectedPort = ReadField( ConnectedPort)), (ConnectionPort = ReadField(ConnectionPort)));
|
|
|
|
if (ConnectedPort) {
|
|
|
|
DumpPortInfo(ConnectedPort, FALSE);
|
|
}
|
|
if (ConnectionPort) {
|
|
|
|
DumpPortInfo(ConnectionPort, FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
VOID
|
|
DumpPortInfo (
|
|
ULONG64 PortObject,
|
|
BOOLEAN DisplayRelated
|
|
)
|
|
{
|
|
ULONG Result;
|
|
|
|
if ( GetFieldValue(PortObject, "nt!_LPCP_PORT_OBJECT", "Flags", Result) ) {
|
|
dprintf( "%08p: Unable to read port object\n", PortObject );
|
|
}
|
|
|
|
if ((Result & PORT_TYPE) == SERVER_CONNECTION_PORT) {
|
|
|
|
DumpServerPort(PortObject, PortObject);
|
|
}
|
|
else {
|
|
|
|
DumpCommunicationPort(PortObject, PortObject, DisplayRelated);
|
|
}
|
|
}
|
|
|
|
BOOLEAN WINAPI
|
|
CheckForMessages(
|
|
IN PCHAR Tag,
|
|
IN PCHAR Filter,
|
|
IN ULONG Flags,
|
|
IN ULONG64 PoolHeader,
|
|
IN ULONG64 BlockSize,
|
|
IN ULONG64 Data,
|
|
IN PVOID Context
|
|
)
|
|
{
|
|
|
|
ULONG PoolIndex;
|
|
|
|
if (!PoolHeader) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (GetFieldValue(PoolHeader, "nt!_POOL_HEADER", "PoolIndex", PoolIndex)) {
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
if ((PoolIndex & 0x80) == 0) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CheckSingleFilter (Tag, Filter)) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (LpcpDumpMessage("", Data, (ULONG)(ULONG_PTR)Context)) {
|
|
|
|
ULONG64 Head, Next;
|
|
ULONG EntryOff, ChainOff, RcvOff, HeaderOff;
|
|
ULONG64 PortToDump;
|
|
ULONG64 ObjectHeader;
|
|
ULONG64 ObjectType;
|
|
|
|
GetFieldOffset("nt!_LPCP_MESSAGE", "Entry", &EntryOff);
|
|
GetFieldOffset("nt!_LPCP_PORT_OBJECT", "LpcDataInfoChainHead", &ChainOff);
|
|
GetFieldOffset("nt!_LPCP_PORT_OBJECT", "MsgQueue.ReceiveHead", &RcvOff);
|
|
|
|
|
|
Head = Data + EntryOff;
|
|
Next = 0;
|
|
if (!ReadPointer(Head, &Next))
|
|
{
|
|
Next = 0;
|
|
}
|
|
|
|
GetFieldOffset("nt!_OBJECT_HEADER", "Body", &HeaderOff);
|
|
|
|
while ((Next != 0) && (Next != Head)) {
|
|
|
|
PortToDump = ( Next - ChainOff );
|
|
|
|
ObjectHeader = PortToDump - HeaderOff;
|
|
|
|
GetFieldValue(ObjectHeader, "nt!_OBJECT_HEADER", "Type", ObjectType);
|
|
|
|
if ( (ObjectType == (LpcPortObjectType)) ||
|
|
(ObjectType == (LpcWaitablePortObjectType))) {
|
|
|
|
DumpPortInfo(PortToDump, TRUE);
|
|
|
|
}
|
|
else {
|
|
|
|
PortToDump = Next - RcvOff;
|
|
|
|
ObjectHeader = PortToDump - HeaderOff;
|
|
|
|
GetFieldValue(ObjectHeader, "nt!_OBJECT_HEADER", "Type", ObjectType);
|
|
|
|
if ( (ObjectType == (LpcPortObjectType)) ||
|
|
(ObjectType == (LpcWaitablePortObjectType))) {
|
|
|
|
DumpPortInfo(PortToDump, TRUE);
|
|
|
|
}
|
|
}
|
|
|
|
if (!ReadPointer(Next, &Next))
|
|
{
|
|
Next = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
|
|
VOID
|
|
DumpMessagesInfo ()
|
|
{
|
|
SearchPool ('McpL', 1, 0, &CheckForMessages, NULL);
|
|
|
|
}
|
|
|
|
|
|
VOID
|
|
SearchForMessage (ULONG Message)
|
|
{
|
|
SearchThreadsForMessage(Message);
|
|
|
|
if (DoPoolSearch) {
|
|
SearchPool ('McpL', 1, 0, &CheckForMessages, (PVOID)UIntToPtr(Message));
|
|
}
|
|
}
|
|
|
|
|
|
VOID
|
|
SearchThreadsForMessage (
|
|
ULONG Message
|
|
)
|
|
{
|
|
ULONG64 ProcessHead;
|
|
ULONG64 ProcessNext;
|
|
ULONG64 Process;
|
|
|
|
ULONG64 ThreadHead;
|
|
ULONG64 ThreadNext;
|
|
ULONG64 Thread;
|
|
ULONG MsgId;
|
|
ULONG64 ClientThread;
|
|
ULONG ActOff, PcbThrdOff, ThrdListOff;
|
|
|
|
ClientThread = 0;
|
|
|
|
dprintf("Searching message %lx in threads ...\n", Message);
|
|
|
|
ProcessHead = GetExpression( "nt!PsActiveProcessHead" );
|
|
|
|
if (!ProcessHead) {
|
|
dprintf("Unable to get value of PsActiveProcessHead\n");
|
|
return;
|
|
}
|
|
|
|
ProcessNext = GetPointerFromAddress(ProcessHead);
|
|
GetFieldOffset("nt!_EPROCESS", "ActiveProcessLinks", &ActOff);
|
|
GetFieldOffset("nt!_EPROCESS", "Pcb.ThreadListHead.Flink", &PcbThrdOff);
|
|
GetFieldOffset("nt!_KTHREAD", "ThreadListEntry", &ThrdListOff);
|
|
|
|
while(ProcessNext != 0 && ProcessNext != ProcessHead) {
|
|
|
|
Process = ProcessNext - ActOff;
|
|
|
|
ThreadHead = Process + PcbThrdOff;
|
|
ThreadNext = GetPointerFromAddress(ThreadHead);
|
|
|
|
while(ThreadNext != 0 && ThreadNext != ThreadHead) {
|
|
|
|
Thread = ThreadNext - ThrdListOff;
|
|
|
|
dprintf(" Proc 0x%08p, Thrd 0x%08p\r", Process, Thread);
|
|
GetFieldValue(Thread, "nt!_ETHREAD", "LpcReplyMessageId", MsgId);
|
|
|
|
if ((MsgId != 0) &&
|
|
((Message == 0) || (Message == MsgId))) {
|
|
|
|
dprintf("Client thread %08p waiting a reply from %lx \n", Thread, MsgId);
|
|
|
|
ClientThread = Thread;
|
|
}
|
|
|
|
GetFieldValue(Thread, "nt!_ETHREAD", "LpcReceivedMsgIdValid", MsgId);
|
|
|
|
if (MsgId) {
|
|
|
|
GetFieldValue(Thread, "nt!_ETHREAD", "LpcReceivedMessageId", MsgId);
|
|
|
|
if ((Message == 0) || (Message == MsgId)) {
|
|
|
|
dprintf("Server thread %08p is working on message %lx \n", Thread, MsgId);
|
|
}
|
|
}
|
|
|
|
ThreadNext = GetPointerFromAddress(ThreadNext);
|
|
|
|
if (CheckControlC()) {
|
|
dprintf("\nQuitting\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
ProcessNext = GetPointerFromAddress(ProcessNext/*&Process->ActiveProcessLinks.Flink*/);
|
|
|
|
if (CheckControlC()) {
|
|
dprintf("\nQuitting\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (Message && ClientThread) {
|
|
|
|
SearchThreads(ClientThread);
|
|
}
|
|
dprintf("Done. \n");
|
|
return;
|
|
}
|
|
|
|
|
|
BOOLEAN
|
|
SearchThreads (
|
|
ULONG64 Thread
|
|
)
|
|
{
|
|
ULONG64 PortObject;
|
|
ULONG64 ObjectHeader;
|
|
ULONG64 ObjectType;
|
|
ULONG64 Head, Next;
|
|
ULONG Count;
|
|
ULONG ChainOff, HeadOff;
|
|
|
|
dprintf("Searching thread %08p in port rundown queues ...\n", Thread);
|
|
|
|
GetFieldOffset("nt!_ETHREAD", "LpcReplyChain.Flink", &ChainOff);
|
|
GetFieldOffset("nt!_LPCP_PORT_OBJECT", "LpcReplyChainHead", &HeadOff);
|
|
Head = Thread + ChainOff;
|
|
|
|
Next = GetPointerFromAddress(Head);
|
|
|
|
while ((Next != 0) && (Next != Head)) {
|
|
|
|
PortObject = Next - HeadOff ;
|
|
|
|
ObjectHeader = KD_OBJECT_TO_OBJECT_HEADER(PortObject);
|
|
|
|
GetFieldValue(ObjectHeader, "nt!_OBJECT_HEADER", "Type", ObjectType);
|
|
|
|
if ( (ObjectType == (LpcPortObjectType)) ||
|
|
(ObjectType == (LpcWaitablePortObjectType))) {
|
|
|
|
DumpPortInfo(PortObject, TRUE);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
Next = GetPointerFromAddress( Next);
|
|
|
|
if ( CheckControlC() ) {
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
dprintf("Thread %08p not found in any reply chain queue\n", Thread);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
DECLARE_API( lpc )
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Dump lpc ports and messages
|
|
|
|
Arguments:
|
|
|
|
args - [TypeName]
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
|
|
{
|
|
ULONG Result;
|
|
LONG SegmentSize;
|
|
ULONG64 pMsg;
|
|
ULONG64 PortToDump;
|
|
char Param1[ MAX_PATH ];
|
|
char Param2[ MAX_PATH ];
|
|
ULONG64 object;
|
|
ULONG64 ThreadAddress;
|
|
ULONG MessageId = 0;
|
|
|
|
Param1[0] = 0;
|
|
Param2[0] = 0;
|
|
LastSeverPortDisplayied = 0;
|
|
|
|
if (!sscanf(args,"%255s %255s",Param1, Param2)) {
|
|
Param1[0] = 0;
|
|
Param2[0] = 0;
|
|
}
|
|
|
|
FetchGlobalVariables();
|
|
|
|
if ((LpcPortObjectType == 0) || (LpcWaitablePortObjectType == 0)) {
|
|
|
|
dprintf("The values for LpcPortObjectType or LpcWaitablePortObjectType are invalid. Please ckeck the symbols.\n");
|
|
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
if (!_stricmp(Param1, "port")) {
|
|
|
|
PortToDump = 0;
|
|
|
|
if (Param2[0]) {
|
|
|
|
PortToDump = GetExpression(Param2);
|
|
}
|
|
|
|
if (!PortToDump) {
|
|
|
|
LpcWalkObjectsByType( LpcPortObjectType, FindPortCallback, 0);
|
|
|
|
LpcWalkObjectsByType( LpcWaitablePortObjectType, FindPortCallback, 0);
|
|
|
|
}
|
|
else {
|
|
|
|
if ((PortToDump >> 32) == 0) {
|
|
|
|
PortToDump = (ULONG64) (LONG64) (LONG)PortToDump;
|
|
}
|
|
|
|
DumpPortInfo(PortToDump, TRUE);
|
|
}
|
|
}
|
|
else if (!_stricmp(Param1, "scan")) {
|
|
|
|
PortToDump = 0;
|
|
|
|
if (Param2[0]) {
|
|
|
|
PortToDump = GetExpression(Param2);
|
|
}
|
|
|
|
if (PortToDump) {
|
|
|
|
LpcWalkObjectsByType( LpcPortObjectType, FindPortCallback, &PortToDump);
|
|
|
|
LpcWalkObjectsByType( LpcWaitablePortObjectType, FindPortCallback, &PortToDump);
|
|
}
|
|
}
|
|
else if (!_stricmp(Param1, "message")) {
|
|
|
|
if (Param2[0]) {
|
|
|
|
if (!sscanf(Param2, "%lx",&MessageId)) {
|
|
MessageId = 0;
|
|
}
|
|
}
|
|
|
|
if (MessageId){
|
|
|
|
SearchForMessage(MessageId);
|
|
}
|
|
else {
|
|
|
|
DumpMessagesInfo();
|
|
}
|
|
}
|
|
else if (!_stricmp(Param1, "PoolSearch")) {
|
|
|
|
DoPoolSearch = !DoPoolSearch;
|
|
|
|
if (DoPoolSearch) {
|
|
|
|
dprintf( "LPC will search the message in the kernel pool\n");
|
|
} else {
|
|
|
|
dprintf( "LPC will not search the message in the kernel pool\n");
|
|
}
|
|
}
|
|
else if (!_stricmp(Param1, "thread")) {
|
|
|
|
ThreadAddress = 0;
|
|
|
|
if (Param2[0]) {
|
|
|
|
ThreadAddress = GetExpression(Param2);
|
|
}
|
|
|
|
if (ThreadAddress) {
|
|
|
|
if ((ThreadAddress >> 32) == 0) {
|
|
|
|
ThreadAddress = (ULONG64) (LONG64) (LONG)ThreadAddress;
|
|
}
|
|
|
|
SearchThreads(ThreadAddress);
|
|
}
|
|
else {
|
|
SearchThreadsForMessage(0);
|
|
}
|
|
}
|
|
else {
|
|
|
|
LpcHelp();
|
|
}
|
|
return S_OK;
|
|
}
|