mirror of
https://github.com/reactos/reactos.git
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167 lines
4.2 KiB
C
167 lines
4.2 KiB
C
/*
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* PROJECT: ReactOS Session Manager
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* LICENSE: GPL v2 or later - See COPYING in the top level directory
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* FILE: base/system/smss/initss.c
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* PURPOSE: Load the subsystems.
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* PROGRAMMERS: ReactOS Development Team
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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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/* SM handle for its own \SmApiPort */
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HANDLE hSmApiPort = (HANDLE) 0;
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/* TODO:
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*
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* a) look if a special option is set for smss.exe in
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* HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
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*/
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/**********************************************************************
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* SmRegisterInternalSubsystem/3
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*
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* DESCRIPTION
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* Register with itself for ImageSubsystemId
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* (programmatically).
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*/
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NTSTATUS NTAPI SmRegisterInternalSubsystem (LPWSTR PgmName,
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USHORT ImageSubsystemId,
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PHANDLE ApiPort)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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RTL_USER_PROCESS_INFORMATION ProcessInfo;
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DPRINT("SM: %s(%S,%d) called\n",__FUNCTION__, PgmName, ImageSubsystemId);
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RtlZeroMemory (& ProcessInfo, sizeof ProcessInfo);
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ProcessInfo.Size = sizeof ProcessInfo;
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ProcessInfo.ProcessHandle = (HANDLE) UlongToPtr(SmSsProcessId);
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ProcessInfo.ClientId.UniqueProcess = (HANDLE) UlongToPtr(SmSsProcessId);
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DPRINT("SM: %s: ProcessInfo.ProcessHandle=%p\n",
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__FUNCTION__,ProcessInfo.ProcessHandle);
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Status = SmCreateClient (& ProcessInfo, PgmName);
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if (NT_SUCCESS(Status))
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{
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UNICODE_STRING SbApiPortName = {0,0,NULL};
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RtlInitUnicodeString (& SbApiPortName, L"");
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Status = SmConnectApiPort(& SbApiPortName,
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(HANDLE) -1, /* internal SS have no SB port */
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ImageSubsystemId,
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ApiPort);
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if(!NT_SUCCESS(Status))
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{
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DPRINT("SM: %s: SMLIB!SmConnectApiPort failed (Status=0x%08lx)\n",
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__FUNCTION__,Status);
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return Status;
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}
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DPRINT("SM:%s: %S self registered\n", __FUNCTION__, PgmName);
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}
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else
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{
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DPRINT1("SM: %s: SmCreateClient(%S) failed (Status=0x%08lx)\n",
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__FUNCTION__, PgmName, Status);
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}
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/*
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* Note that you don't need to call complete session
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* here because connection handling code autocompletes
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* the client structure for IMAGE_SUBSYSTEM_NATIVE and
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* -1.
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*/
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return Status;
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}
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/**********************************************************************
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* SmpLoadRequiredSubsystems/0
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*/
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static NTSTATUS
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SmpLoadRequiredSubsystems (VOID)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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WCHAR Data [MAX_PATH + 1];
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ULONG DataLength = sizeof Data;
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ULONG DataType = 0;
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DPRINT("SM: %s called\n", __FUNCTION__);
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RtlZeroMemory (Data, DataLength);
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Status = SmLookupSubsystem (L"Required",
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Data,
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& DataLength,
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& DataType,
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NULL);
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if((STATUS_SUCCESS == Status) && (DataLength > sizeof Data[0]))
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{
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PWCHAR Name = NULL;
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ULONG Offset = 0;
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for (Name = Data; (Offset < DataLength); )
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{
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if(L'\0' != *Name)
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{
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UNICODE_STRING Program;
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/* Run the current program */
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RtlInitUnicodeString (& Program, Name);
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Status = SmExecuteProgram (hSmApiPort, & Program);
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if(!NT_SUCCESS(Status))
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{
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DPRINT1("SM: %s failed to run '%S' program (Status=0x%08lx)\n",
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__FUNCTION__, Name, Status);
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}
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/* Look for the next program */
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while ((L'\0' != *Name) && (Offset < DataLength))
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{
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++ Name;
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++ Offset;
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}
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}
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++ Name;
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++ Offset;
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}
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}
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return Status;
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}
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/**********************************************************************
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* SmLoadSubsystems/0
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*/
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NTSTATUS
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SmLoadSubsystems(VOID)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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DPRINT("SM: loading subsystems...\n");
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/*
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* SM self registers: this also opens hSmApiPort to be used
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* in loading required subsystems.
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*/
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Status = SmRegisterInternalSubsystem (L"Session Manager", IMAGE_SUBSYSTEM_NATIVE, & hSmApiPort);
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if(!NT_SUCCESS(Status))
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{
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DPRINT1("SM: %s SmRegisterInternalSubsystem failed Status=%08lx\n", __FUNCTION__, Status);
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return Status;
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}
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/* Load Required subsystems (Debug Windows) */
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Status = SmpLoadRequiredSubsystems();
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if(!NT_SUCCESS(Status))
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{
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DPRINT1("SM: %s SmpLoadRequiredSubsystems failed Status=%08lx\n", __FUNCTION__, Status);
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return Status;
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}
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/* done */
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DPRINT("SM: done loading subsystems\n");
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return Status;
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}
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/* EOF */
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