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678 lines
25 KiB
C
678 lines
25 KiB
C
/*
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* PROJECT: ReactOS Windows-Compatible Session Manager
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* LICENSE: BSD 2-Clause License
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* FILE: base/system/smss/smsubsys.c
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* PURPOSE: Main SMSS Code
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* PROGRAMMERS: Alex Ionescu
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*/
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/* INCLUDES *******************************************************************/
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#include "smss.h"
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#define NDEBUG
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#include <debug.h>
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/* GLOBALS ********************************************************************/
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RTL_CRITICAL_SECTION SmpKnownSubSysLock;
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LIST_ENTRY SmpKnownSubSysHead;
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HANDLE SmpWindowsSubSysProcess;
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HANDLE SmpWindowsSubSysProcessId;
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BOOLEAN RegPosixSingleInstance;
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WCHAR InitialCommandBuffer[256];
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/* FUNCTIONS ******************************************************************/
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NTSTATUS
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NTAPI
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SmpCallCsrCreateProcess(IN PSB_API_MSG SbApiMsg,
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IN USHORT MessageLength,
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IN HANDLE PortHandle)
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{
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NTSTATUS Status;
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/* Initialize the header and send the message to CSRSS */
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SbApiMsg->h.u2.ZeroInit = 0;
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SbApiMsg->h.u1.s1.DataLength = MessageLength + 8;
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SbApiMsg->h.u1.s1.TotalLength = sizeof(SB_API_MSG);
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SbApiMsg->ApiNumber = SbpCreateProcess;
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Status = NtRequestWaitReplyPort(PortHandle, &SbApiMsg->h, &SbApiMsg->h);
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if (NT_SUCCESS(Status)) Status = SbApiMsg->ReturnValue;
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return Status;
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}
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VOID
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NTAPI
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SmpDereferenceSubsystem(IN PSMP_SUBSYSTEM SubSystem)
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{
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/* Acquire the database lock while we (potentially) destroy this subsystem */
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RtlEnterCriticalSection(&SmpKnownSubSysLock);
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/* Drop the reference and see if it's terminating */
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if (!(--SubSystem->ReferenceCount) && (SubSystem->Terminating))
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{
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/* Close all handles and free it */
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if (SubSystem->Event) NtClose(SubSystem->Event);
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if (SubSystem->ProcessHandle) NtClose(SubSystem->ProcessHandle);
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if (SubSystem->SbApiPort) NtClose(SubSystem->SbApiPort);
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RtlFreeHeap(SmpHeap, 0, SubSystem);
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}
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/* Release the database lock */
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
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}
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PSMP_SUBSYSTEM
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NTAPI
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SmpLocateKnownSubSysByCid(IN PCLIENT_ID ClientId)
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{
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PSMP_SUBSYSTEM Subsystem = NULL;
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PLIST_ENTRY NextEntry;
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/* Lock the subsystem database */
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RtlEnterCriticalSection(&SmpKnownSubSysLock);
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/* Loop each subsystem in the database */
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NextEntry = SmpKnownSubSysHead.Flink;
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while (NextEntry != &SmpKnownSubSysHead)
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{
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/* Check if this one matches the client ID and is still valid */
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Subsystem = CONTAINING_RECORD(NextEntry, SMP_SUBSYSTEM, Entry);
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if ((*(PULONGLONG)&Subsystem->ClientId == *(PULONGLONG)ClientId) &&
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!(Subsystem->Terminating))
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{
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/* Add a reference and return it */
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Subsystem->ReferenceCount++;
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break;
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}
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/* Reset the current pointer and keep earching */
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Subsystem = NULL;
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NextEntry = NextEntry->Flink;
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}
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/* Release the lock and return the subsystem we found */
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
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return Subsystem;
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}
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PSMP_SUBSYSTEM
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NTAPI
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SmpLocateKnownSubSysByType(IN ULONG MuSessionId,
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IN ULONG ImageType)
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{
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PSMP_SUBSYSTEM Subsystem = NULL;
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PLIST_ENTRY NextEntry;
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/* Lock the subsystem database */
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RtlEnterCriticalSection(&SmpKnownSubSysLock);
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/* Loop each subsystem in the database */
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NextEntry = SmpKnownSubSysHead.Flink;
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while (NextEntry != &SmpKnownSubSysHead)
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{
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/* Check if this one matches the image and uID, and is still valid */
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Subsystem = CONTAINING_RECORD(NextEntry, SMP_SUBSYSTEM, Entry);
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if ((Subsystem->ImageType == ImageType) &&
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!(Subsystem->Terminating) &&
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(Subsystem->MuSessionId == MuSessionId))
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{
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/* Return it referenced for the caller */
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Subsystem->ReferenceCount++;
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break;
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}
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/* Reset the current pointer and keep earching */
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Subsystem = NULL;
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NextEntry = NextEntry->Flink;
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}
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/* Release the lock and return the subsystem we found */
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
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return Subsystem;
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}
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NTSTATUS
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NTAPI
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SmpLoadSubSystem(IN PUNICODE_STRING FileName,
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IN PUNICODE_STRING Directory,
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IN PUNICODE_STRING CommandLine,
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IN ULONG MuSessionId,
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OUT PHANDLE ProcessId,
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IN ULONG Flags)
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{
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PSMP_SUBSYSTEM Subsystem, NewSubsystem, KnownSubsystem = NULL;
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HANDLE SubSysProcessId;
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NTSTATUS Status = STATUS_SUCCESS;
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SB_API_MSG SbApiMsg, SbApiMsg2;
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RTL_USER_PROCESS_INFORMATION ProcessInformation;
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LARGE_INTEGER Timeout;
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PVOID State;
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PSB_CREATE_PROCESS_MSG CreateProcess = &SbApiMsg.CreateProcess;
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PSB_CREATE_SESSION_MSG CreateSession = &SbApiMsg.CreateSession;
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/* Make sure this is a found subsystem */
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if (Flags & SMP_INVALID_PATH)
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{
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DPRINT1("SMSS: Unable to find subsystem - %wZ\n", FileName);
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return STATUS_OBJECT_NAME_NOT_FOUND;
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}
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/* Don't use a session if the flag is set */
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if (Flags & 0x80) MuSessionId = 0;
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/* Lock the subsystems while we do a look up */
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RtlEnterCriticalSection(&SmpKnownSubSysLock);
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while (TRUE)
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{
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/* Check if we found a subsystem not yet fully initialized */
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Subsystem = SmpLocateKnownSubSysByType(MuSessionId, -1);
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if (!Subsystem) break;
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
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/* Wait on it to initialize */
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NtWaitForSingleObject(Subsystem->Event, FALSE, NULL);
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/* Dereference it and try the next one */
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RtlEnterCriticalSection(&SmpKnownSubSysLock);
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SmpDereferenceSubsystem(Subsystem);
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}
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/* Check if this is a POSIX subsystem */
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if (Flags & SMP_POSIX_FLAG)
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{
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/* Do we already have it? */
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Subsystem = SmpLocateKnownSubSysByType(MuSessionId, IMAGE_SUBSYSTEM_POSIX_CUI);
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}
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else if (Flags & SMP_OS2_FLAG)
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{
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/* This is an OS/2 subsystem, do we we already have it? */
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Subsystem = SmpLocateKnownSubSysByType(MuSessionId, IMAGE_SUBSYSTEM_OS2_CUI);
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}
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/* Check if we already have one of the optional subsystems for the session */
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if (Subsystem)
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{
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/* Dereference and return, no work to do */
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SmpDereferenceSubsystem(Subsystem);
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
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return STATUS_SUCCESS;
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}
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/* Allocate a new subsystem! */
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NewSubsystem = RtlAllocateHeap(SmpHeap, SmBaseTag, sizeof(SMP_SUBSYSTEM));
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if (!NewSubsystem)
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{
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
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return STATUS_NO_MEMORY;
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}
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/* Initialize its header and reference count */
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NewSubsystem->ReferenceCount = 1;
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NewSubsystem->MuSessionId = MuSessionId;
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NewSubsystem->ImageType = -1;
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/* Clear out all the other data for now */
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NewSubsystem->Terminating = FALSE;
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NewSubsystem->ProcessHandle = NULL;
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NewSubsystem->Event = NULL;
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NewSubsystem->PortHandle = NULL;
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NewSubsystem->SbApiPort = NULL;
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/* Create the event we'll be waiting on for initialization */
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Status = NtCreateEvent(&NewSubsystem->Event,
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EVENT_ALL_ACCESS,
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NULL,
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NotificationEvent,
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FALSE);
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if (!NT_SUCCESS(Status))
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{
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/* This failed, bail out */
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RtlFreeHeap(SmpHeap, 0, NewSubsystem);
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
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return STATUS_NO_MEMORY;
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}
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/* Insert the subsystem and release the lock. It can now be found */
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InsertTailList(&SmpKnownSubSysHead, &NewSubsystem->Entry);
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
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/* The OS/2 and POSIX subsystems are actually Windows applications! */
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if (Flags & (SMP_POSIX_FLAG | SMP_OS2_FLAG))
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{
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/* Locate the Windows subsystem for this session */
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KnownSubsystem = SmpLocateKnownSubSysByType(MuSessionId,
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IMAGE_SUBSYSTEM_WINDOWS_GUI);
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if (!KnownSubsystem)
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{
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DPRINT1("SMSS: SmpLoadSubSystem - SmpLocateKnownSubSysByType Failed\n");
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goto Quickie2;
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}
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/* Fill out all the process details and call CSRSS to launch it */
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CreateProcess->In.ImageName = FileName;
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CreateProcess->In.CurrentDirectory = Directory;
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CreateProcess->In.CommandLine = CommandLine;
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CreateProcess->In.DllPath = SmpDefaultLibPath.Length ?
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&SmpDefaultLibPath : NULL;
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CreateProcess->In.Flags = Flags | SMP_DEFERRED_FLAG;
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CreateProcess->In.DebugFlags = SmpDebug;
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Status = SmpCallCsrCreateProcess(&SbApiMsg,
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sizeof(*CreateProcess),
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KnownSubsystem->SbApiPort);
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if (!NT_SUCCESS(Status))
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{
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/* Handle failures */
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DPRINT1("SMSS: SmpLoadSubSystem - SmpCallCsrCreateProcess Failed with Status %lx\n",
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Status);
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goto Quickie2;
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}
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/* Save the process information we'll need for the create session */
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ProcessInformation.ProcessHandle = CreateProcess->Out.ProcessHandle;
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ProcessInformation.ThreadHandle = CreateProcess->Out.ThreadHandle;
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ProcessInformation.ClientId = CreateProcess->Out.ClientId;
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ProcessInformation.ImageInformation.SubSystemType = CreateProcess->Out.SubsystemType;
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}
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else
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{
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/* This must be CSRSS itself, so just launch it and that's it */
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Status = SmpExecuteImage(FileName,
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Directory,
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CommandLine,
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MuSessionId,
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Flags | SMP_DEFERRED_FLAG,
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&ProcessInformation);
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if (!NT_SUCCESS(Status))
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{
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/* Handle failures */
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DPRINT1("SMSS: SmpLoadSubSystem - SmpExecuteImage Failed with Status %lx\n",
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Status);
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goto Quickie2;
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}
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}
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/* Fill out the handle and client ID in the subsystem structure now */
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NewSubsystem->ProcessHandle = ProcessInformation.ProcessHandle;
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NewSubsystem->ClientId = ProcessInformation.ClientId;
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/* Check if we launched a native image or a subsystem-backed image */
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if (ProcessInformation.ImageInformation.SubSystemType == IMAGE_SUBSYSTEM_NATIVE)
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{
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/* This must be CSRSS itself, since it's a native subsystem image */
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SubSysProcessId = ProcessInformation.ClientId.UniqueProcess;
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if ((ProcessId) && !(*ProcessId)) *ProcessId = SubSysProcessId;
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/* Was this the initial CSRSS on Session 0? */
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if (!MuSessionId)
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{
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/* Then save it in the global variables */
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SmpWindowsSubSysProcessId = SubSysProcessId;
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SmpWindowsSubSysProcess = ProcessInformation.ProcessHandle;
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}
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ASSERT(NT_SUCCESS(Status));
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}
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else
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{
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/* This is the POSIX or OS/2 subsystem process, copy its information */
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RtlCopyMemory(&CreateSession->ProcessInfo,
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&ProcessInformation,
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sizeof(CreateSession->ProcessInfo));
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/* Not sure these field mean what I think they do -- but clear them */
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*(PULONGLONG)&CreateSession->ClientId = 0;
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CreateSession->MuSessionId = 0;
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/* This should find CSRSS because they are POSIX or OS/2 subsystems */
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Subsystem = SmpLocateKnownSubSysByType(MuSessionId,
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ProcessInformation.ImageInformation.SubSystemType);
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if (!Subsystem)
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{
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/* Odd failure -- but handle it anyway */
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Status = STATUS_NO_SUCH_PACKAGE;
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DPRINT1("SMSS: SmpLoadSubSystem - SmpLocateKnownSubSysByType Failed with Status %lx for sessionid %lu\n",
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Status,
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MuSessionId);
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goto Quickie;
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}
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/* Duplicate the parent process handle for the subsystem to have */
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Status = NtDuplicateObject(NtCurrentProcess(),
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ProcessInformation.ProcessHandle,
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Subsystem->ProcessHandle,
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&CreateSession->ProcessInfo.ProcessHandle,
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PROCESS_ALL_ACCESS,
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0,
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0);
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if (!NT_SUCCESS(Status))
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{
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/* Fail since this is critical */
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DPRINT1("SMSS: SmpLoadSubSystem - NtDuplicateObject Failed with Status %lx for sessionid %lu\n",
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Status,
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MuSessionId);
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goto Quickie;
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}
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/* Duplicate the initial thread handle for the subsystem to have */
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Status = NtDuplicateObject(NtCurrentProcess(),
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ProcessInformation.ThreadHandle,
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Subsystem->ProcessHandle,
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&CreateSession->ProcessInfo.ThreadHandle,
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THREAD_ALL_ACCESS,
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0,
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0);
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if (!NT_SUCCESS(Status))
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{
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/* Fail since this is critical */
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DPRINT1("SMSS: SmpLoadSubSystem - NtDuplicateObject Failed with Status %lx for sessionid %lu\n",
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Status,
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MuSessionId);
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goto Quickie;
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}
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/* Allocate an internal Session ID for this subsystem */
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MuSessionId = SmpAllocateSessionId(Subsystem, 0);
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CreateSession->SessionId = MuSessionId;
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/* Send the create session message to the subsystem */
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SbApiMsg2.ReturnValue = STATUS_SUCCESS;
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SbApiMsg2.h.u2.ZeroInit = 0;
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SbApiMsg2.h.u1.s1.DataLength = sizeof(SB_CREATE_SESSION_MSG) + 8;
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SbApiMsg2.h.u1.s1.TotalLength = sizeof(SB_API_MSG);
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Status = NtRequestWaitReplyPort(Subsystem->SbApiPort,
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&SbApiMsg2.h,
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&SbApiMsg2.h);
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if (NT_SUCCESS(Status)) Status = SbApiMsg2.ReturnValue;
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if (!NT_SUCCESS(Status))
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{
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/* Delete the session and handle failure if the LPC call failed */
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SmpDeleteSession(CreateSession->SessionId);
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DPRINT1("SMSS: SmpLoadSubSystem - NtRequestWaitReplyPort Failed with Status %lx for sessionid %lu\n",
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Status,
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CreateSession->SessionId);
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goto Quickie;
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}
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}
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/* Okay, everything looks good to go, initialize this subsystem now! */
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Status = NtResumeThread(ProcessInformation.ThreadHandle, NULL);
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if (!NT_SUCCESS(Status))
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{
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/* That didn't work -- back out of everything */
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DPRINT1("SMSS: SmpLoadSubSystem - NtResumeThread failed Status %lx\n", Status);
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goto Quickie;
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}
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/* Check if this was the subsystem for a different session */
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if (MuSessionId)
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{
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/* Wait up to 60 seconds for it to initialize */
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Timeout.QuadPart = -600000000;
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Status = NtWaitForSingleObject(NewSubsystem->Event, FALSE, &Timeout);
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/* Timeout is done -- does this session still exist? */
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if (!SmpCheckDuplicateMuSessionId(MuSessionId))
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{
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/* Nope, it died. Cleanup should've ocurred in a different path. */
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DPRINT1("SMSS: SmpLoadSubSystem - session deleted\n");
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return STATUS_DELETE_PENDING;
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}
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/* Check if we timed our or there was another error with the wait */
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if (Status != STATUS_WAIT_0)
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{
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/* Something is wrong with the subsystem, so back out of everything */
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DPRINT1("SMSS: SmpLoadSubSystem - Timeout waiting for subsystem connect with Status %lx for sessionid %lu\n",
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Status,
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MuSessionId);
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goto Quickie;
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}
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}
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else
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{
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/* This a session 0 subsystem, just wait for it to initialize */
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NtWaitForSingleObject(NewSubsystem->Event, FALSE, NULL);
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}
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/* Subsystem is created, resumed, and initialized. Close handles and exit */
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NtClose(ProcessInformation.ThreadHandle);
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Status = STATUS_SUCCESS;
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goto Quickie2;
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Quickie:
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/* This is the failure path. First check if we need to detach from session */
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if ((AttachedSessionId == -1) || (Flags & (SMP_POSIX_FLAG | SMP_OS2_FLAG)))
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{
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/* We were not attached, or did not launch subsystems that required it */
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DPRINT1("SMSS: Did not detach from Session Space: SessionId=%x Flags=%x Status=%x\n",
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AttachedSessionId,
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Flags | SMP_DEFERRED_FLAG,
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Status);
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}
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else
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{
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/* Get the privilege we need for detachment */
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Status = SmpAcquirePrivilege(SE_LOAD_DRIVER_PRIVILEGE, &State);
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if (!NT_SUCCESS(Status))
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{
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/* We can't detach without it */
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DPRINT1("SMSS: Did not detach from Session Space: SessionId=%x Flags=%x Status=%x\n",
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AttachedSessionId,
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Flags | SMP_DEFERRED_FLAG,
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Status);
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}
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else
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{
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/* Now detach from the session */
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Status = NtSetSystemInformation(SystemSessionDetach,
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&AttachedSessionId,
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sizeof(AttachedSessionId));
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if (!NT_SUCCESS(Status))
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{
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/* Failed to detach. Note the DPRINT1 has a typo in Windows */
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DPRINT1("SMSS: SmpStartCsr, Couldn't Detach from Session Space. Status=%x\n", Status);
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ASSERT(NT_SUCCESS(Status));
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}
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else
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{
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/* Detachment worked, reset our attached session ID */
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AttachedSessionId = -1;
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}
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/* And release the privilege we acquired */
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SmpReleasePrivilege(State);
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}
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}
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/* Since this is the failure path, terminate the subsystem process */
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NtTerminateProcess(ProcessInformation.ProcessHandle, Status);
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NtClose(ProcessInformation.ThreadHandle);
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Quickie2:
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/* This is the cleanup path -- first dereference our subsystems */
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RtlEnterCriticalSection(&SmpKnownSubSysLock);
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if (Subsystem) SmpDereferenceSubsystem(Subsystem);
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if (KnownSubsystem) SmpDereferenceSubsystem(KnownSubsystem);
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/* In the failure case, destroy the new subsystem we just created */
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if (!NT_SUCCESS(Status))
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{
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RemoveEntryList(&NewSubsystem->Entry);
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NtSetEvent(NewSubsystem->Event, 0);
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SmpDereferenceSubsystem(NewSubsystem);
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}
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/* Finally, we're all done! */
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RtlLeaveCriticalSection(&SmpKnownSubSysLock);
|
|
return Status;
|
|
}
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
SmpLoadSubSystemsForMuSession(IN PULONG MuSessionId,
|
|
OUT PHANDLE ProcessId,
|
|
IN PUNICODE_STRING InitialCommand)
|
|
{
|
|
NTSTATUS Status = STATUS_SUCCESS, Status2;
|
|
PSMP_REGISTRY_VALUE RegEntry;
|
|
UNICODE_STRING DestinationString, NtPath;
|
|
PLIST_ENTRY NextEntry;
|
|
LARGE_INTEGER Timeout;
|
|
PVOID State;
|
|
|
|
/* Write a few last registry keys with the boot partition information */
|
|
SmpTranslateSystemPartitionInformation();
|
|
|
|
/* Process "SetupExecute" values */
|
|
NextEntry = SmpSetupExecuteList.Flink;
|
|
while (NextEntry != &SmpSetupExecuteList)
|
|
{
|
|
/* Execute each one and move on */
|
|
RegEntry = CONTAINING_RECORD(NextEntry, SMP_REGISTRY_VALUE, Entry);
|
|
SmpExecuteCommand(&RegEntry->Name, 0, NULL, 0);
|
|
NextEntry = NextEntry->Flink;
|
|
}
|
|
|
|
/* Now process the subsystems */
|
|
NextEntry = SmpSubSystemList.Flink;
|
|
while (NextEntry != &SmpSubSystemList)
|
|
{
|
|
/* Get the entry and check if this is the special Win32k entry */
|
|
RegEntry = CONTAINING_RECORD(NextEntry, SMP_REGISTRY_VALUE, Entry);
|
|
if (_wcsicmp(RegEntry->Name.Buffer, L"Kmode") == 0)
|
|
{
|
|
/* Translate it */
|
|
if (!RtlDosPathNameToNtPathName_U(RegEntry->Value.Buffer,
|
|
&NtPath,
|
|
NULL,
|
|
NULL))
|
|
{
|
|
Status = STATUS_OBJECT_PATH_SYNTAX_BAD;
|
|
DPRINT1("Failed: %lx\n", Status);
|
|
}
|
|
else
|
|
{
|
|
/* Get the driver privilege */
|
|
Status = SmpAcquirePrivilege(SE_LOAD_DRIVER_PRIVILEGE, &State);
|
|
if (NT_SUCCESS(Status))
|
|
{
|
|
/* Create the new session */
|
|
ASSERT(AttachedSessionId == -1);
|
|
Status = NtSetSystemInformation(SystemSessionCreate,
|
|
MuSessionId,
|
|
sizeof(*MuSessionId));
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DPRINT1("SMSS: Session space creation failed\n");
|
|
SmpReleasePrivilege(State);
|
|
RtlFreeHeap(RtlGetProcessHeap(), 0, NtPath.Buffer);
|
|
return Status;
|
|
}
|
|
AttachedSessionId = *MuSessionId;
|
|
|
|
/*
|
|
* Start Win32k.sys on this session. Use a hardcoded value
|
|
* instead of the Kmode one...
|
|
*/
|
|
RtlInitUnicodeString(&DestinationString,
|
|
L"\\SystemRoot\\System32\\win32k.sys");
|
|
Status = NtSetSystemInformation(SystemExtendServiceTableInformation,
|
|
&DestinationString,
|
|
sizeof(DestinationString));
|
|
RtlFreeHeap(RtlGetProcessHeap(), 0, NtPath.Buffer);
|
|
SmpReleasePrivilege(State);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DPRINT1("SMSS: Load of WIN32K failed.\n");
|
|
return Status;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Next entry */
|
|
NextEntry = NextEntry->Flink;
|
|
}
|
|
|
|
/* Now parse the required subsystem list */
|
|
NextEntry = SmpSubSystemsToLoad.Flink;
|
|
while (NextEntry != &SmpSubSystemsToLoad)
|
|
{
|
|
/* Get each entry and check if it's the internal debug or not */
|
|
RegEntry = CONTAINING_RECORD(NextEntry, SMP_REGISTRY_VALUE, Entry);
|
|
if (_wcsicmp(RegEntry->Name.Buffer, L"Debug") == 0)
|
|
{
|
|
/* Load the internal debug system */
|
|
Status = SmpExecuteCommand(&RegEntry->Value,
|
|
*MuSessionId,
|
|
ProcessId,
|
|
SMP_DEBUG_FLAG | SMP_SUBSYSTEM_FLAG);
|
|
}
|
|
else
|
|
{
|
|
/* Load the required subsystem */
|
|
Status = SmpExecuteCommand(&RegEntry->Value,
|
|
*MuSessionId,
|
|
ProcessId,
|
|
SMP_SUBSYSTEM_FLAG);
|
|
}
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
DbgPrint("SMSS: Subsystem execute failed (%wZ)\n", &RegEntry->Value);
|
|
return Status;
|
|
}
|
|
|
|
/* Move to the next entry */
|
|
NextEntry = NextEntry->Flink;
|
|
}
|
|
|
|
/* Process the "Execute" list now */
|
|
NextEntry = SmpExecuteList.Blink;
|
|
if (NextEntry != &SmpExecuteList)
|
|
{
|
|
/* Get the custom initial command */
|
|
RegEntry = CONTAINING_RECORD(NextEntry, SMP_REGISTRY_VALUE, Entry);
|
|
|
|
/* Write the initial command and wait for 5 seconds (why??!) */
|
|
*InitialCommand = RegEntry->Name;
|
|
Timeout.QuadPart = -50000000;
|
|
NtDelayExecution(FALSE, &Timeout);
|
|
}
|
|
else
|
|
{
|
|
/* Use the default Winlogon initial command */
|
|
RtlInitUnicodeString(InitialCommand, L"winlogon.exe");
|
|
InitialCommandBuffer[0] = UNICODE_NULL;
|
|
|
|
/* Check if there's a debugger for Winlogon */
|
|
Status2 = LdrQueryImageFileExecutionOptions(InitialCommand,
|
|
L"Debugger",
|
|
REG_SZ,
|
|
InitialCommandBuffer,
|
|
sizeof(InitialCommandBuffer) -
|
|
InitialCommand->Length,
|
|
NULL);
|
|
if ((NT_SUCCESS(Status2)) && (InitialCommandBuffer[0]))
|
|
{
|
|
/* Put the debugger string with the Winlogon string */
|
|
wcscat(InitialCommandBuffer, L" ");
|
|
wcscat(InitialCommandBuffer, InitialCommand->Buffer);
|
|
RtlInitUnicodeString(InitialCommand, InitialCommandBuffer);
|
|
}
|
|
}
|
|
|
|
/* Finally check if there was a custom initial command */
|
|
NextEntry = SmpExecuteList.Flink;
|
|
while (NextEntry != &SmpExecuteList)
|
|
{
|
|
/* Execute each one */
|
|
RegEntry = CONTAINING_RECORD(NextEntry, SMP_REGISTRY_VALUE, Entry);
|
|
SmpExecuteCommand(&RegEntry->Name, *MuSessionId, NULL, 0);
|
|
NextEntry = NextEntry->Flink;
|
|
}
|
|
|
|
/* Return status */
|
|
return Status;
|
|
}
|