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https://github.com/reactos/reactos.git
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188 lines
7.2 KiB
C
188 lines
7.2 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/smsbapi.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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PCHAR SmpSubSystemNames[] =
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{
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"Unknown",
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"Native",
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"Windows",
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"Posix",
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"OS/2"
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};
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/* FUNCTIONS ******************************************************************/
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NTSTATUS
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NTAPI
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SmpSbCreateSession(IN PVOID Reserved,
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IN PSMP_SUBSYSTEM OtherSubsystem,
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IN PRTL_USER_PROCESS_INFORMATION ProcessInformation,
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IN ULONG MuSessionId,
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IN PCLIENT_ID DbgClientId)
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{
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NTSTATUS Status;
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PSMP_SUBSYSTEM KnownSubsys;
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SB_API_MSG SbApiMsg;
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ULONG SessionId;
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PSB_CREATE_SESSION_MSG CreateSessionMsg;
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/* Write out the create session message including its initial process */
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CreateSessionMsg = &SbApiMsg.CreateSession;
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CreateSessionMsg->ProcessInfo = *ProcessInformation;
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CreateSessionMsg->MuSessionId = MuSessionId;
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if (DbgClientId)
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{
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CreateSessionMsg->ClientId = *DbgClientId;
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}
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else
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{
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CreateSessionMsg->ClientId.UniqueThread = NULL;
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CreateSessionMsg->ClientId.UniqueProcess = NULL;
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}
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/* Find a subsystem responsible for this session */
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SmpGetProcessMuSessionId(ProcessInformation->ProcessHandle, &MuSessionId);
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if (!SmpCheckDuplicateMuSessionId(MuSessionId))
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{
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NtClose(ProcessInformation->ProcessHandle);
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NtClose(ProcessInformation->ThreadHandle);
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DPRINT1("SMSS: CreateSession status=%x\n", STATUS_OBJECT_NAME_NOT_FOUND);
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return STATUS_OBJECT_NAME_NOT_FOUND;
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}
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/* Find the subsystem we have for this initial process */
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KnownSubsys = SmpLocateKnownSubSysByType(MuSessionId,
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ProcessInformation->
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ImageInformation.SubSystemType);
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if (KnownSubsys)
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{
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/* Duplicate the process handle into the message */
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Status = NtDuplicateObject(NtCurrentProcess(),
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ProcessInformation->ProcessHandle,
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KnownSubsys->ProcessHandle,
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&CreateSessionMsg->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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/* Duplicate the thread handle into the message */
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Status = NtDuplicateObject(NtCurrentProcess(),
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ProcessInformation->ThreadHandle,
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KnownSubsys->ProcessHandle,
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&CreateSessionMsg->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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/* Close everything on failure */
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NtClose(ProcessInformation->ProcessHandle);
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NtClose(ProcessInformation->ThreadHandle);
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SmpDereferenceSubsystem(KnownSubsys);
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DbgPrint("SmpSbCreateSession: NtDuplicateObject (Thread) Failed %lx\n", Status);
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return Status;
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}
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/* Close the original handles as they are no longer needed */
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NtClose(ProcessInformation->ProcessHandle);
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NtClose(ProcessInformation->ThreadHandle);
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/* Finally, allocate a new SMSS session ID for this session */
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SessionId = SmpAllocateSessionId(KnownSubsys, OtherSubsystem);
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CreateSessionMsg->SessionId = SessionId;
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/* Fill out the LPC message header and send it to the client! */
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SbApiMsg.ApiNumber = SbpCreateSession;
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SbApiMsg.h.u2.ZeroInit = 0;
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SbApiMsg.h.u1.s1.DataLength = sizeof(SB_CREATE_SESSION_MSG) + 8;
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SbApiMsg.h.u1.s1.TotalLength = sizeof(SbApiMsg);
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Status = NtRequestWaitReplyPort(KnownSubsys->SbApiPort,
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&SbApiMsg.h,
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&SbApiMsg.h);
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if (!NT_SUCCESS(Status))
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{
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/* Bail out */
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DPRINT1("SmpSbCreateSession: NtRequestWaitReply Failed %lx\n", Status);
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}
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else
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{
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/* If the API succeeded, get the result value from the LPC */
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Status = SbApiMsg.ReturnValue;
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}
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/* Delete the session on any kind of failure */
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if (!NT_SUCCESS(Status)) SmpDeleteSession(SessionId);
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}
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else
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{
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/* Close the handles on failure */
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DPRINT1("SmpSbCreateSession: NtDuplicateObject (Process) Failed %lx\n", Status);
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NtClose(ProcessInformation->ProcessHandle);
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NtClose(ProcessInformation->ThreadHandle);
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}
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/* Dereference the subsystem and return the status of the LPC call */
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SmpDereferenceSubsystem(KnownSubsys);
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return Status;
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}
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/* If we don't yet have a subsystem, only native images can be launched */
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if (ProcessInformation->ImageInformation.SubSystemType != IMAGE_SUBSYSTEM_NATIVE)
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{
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/* Fail */
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DPRINT1("SMSS: %s SubSystem has not been started.\n",
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SmpSubSystemNames[ProcessInformation->ImageInformation.SubSystemType]);
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Status = STATUS_UNSUCCESSFUL;
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NtClose(ProcessInformation->ProcessHandle);
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NtClose(ProcessInformation->ThreadHandle);
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return Status;
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}
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#if 0
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/* This code handles debug applications, but it seems vestigial... */
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if ((*(ULONGLONG)&CreateSessionMsg.ClientId) && (SmpDbgSsLoaded))
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{
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Process = RtlAllocateHeap(SmpHeap, SmBaseTag, sizeof(SMP_PROCESS));
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if (!Process)
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{
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DPRINT1("Unable to initialize debugging for Native App %lx.%lx -- out of memory\n",
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ProcessInformation->ClientId.UniqueProcess,
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ProcessInformation->ClientId.UniqueThread);
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NtClose(ProcessInformation->ProcessHandle);
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NtClose(ProcessInformation->ThreadHandle);
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return STATUS_NO_MEMORY;
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}
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Process->DbgClientId = CreateSessionMsg->ClientId;
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Process->ClientId = ProcessInformation->ClientId;
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InsertHeadList(&NativeProcessList, &Process->Entry);
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DPRINT1("Native Debug App %lx.%lx\n", Process->ClientId.UniqueProcess, Process->ClientId.UniqueThread);
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Status = NtSetInformationProcess(ProcessInformation->ProcessHandle, 7, &SmpDebugPort, 4);
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ASSERT(NT_SUCCESS(Status));
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}
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#endif
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/* This is a native application being started as the initial command */
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DPRINT("Subsystem active, starting thread\n");
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NtClose(ProcessInformation->ProcessHandle);
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NtResumeThread(ProcessInformation->ThreadHandle, NULL);
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NtClose(ProcessInformation->ThreadHandle);
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return STATUS_SUCCESS;
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}
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