+++ /dev/null
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS CSR Sub System
- * FILE: subsys/csr/csrsrv/session.c
- * PURPOSE: CSR Server DLL Session Implementation
- * PROGRAMMERS: Alex Ionescu (alex@relsoft.net)
- */
-
-/* INCLUDES ******************************************************************/
-
-#include "srv.h"
-
-#define NDEBUG
-#include <debug.h>
-
-/* DATA **********************************************************************/
-
-RTL_CRITICAL_SECTION CsrNtSessionLock;
-LIST_ENTRY CsrNtSessionList;
-HANDLE CsrSmApiPort;
-
-PSB_API_ROUTINE CsrServerSbApiDispatch[5] =
-{
- CsrSbCreateSession,
- CsrSbTerminateSession,
- CsrSbForeignSessionComplete,
- CsrSbCreateProcess,
- NULL
-};
-
-PCHAR CsrServerSbApiName[5] =
-{
- "SbCreateSession",
- "SbTerminateSession",
- "SbForeignSessionComplete",
- "SbCreateProcess",
- "Unknown Csr Sb Api Number"
-};
-
-/* PRIVATE FUNCTIONS *********************************************************/
-
-/*++
- * @name CsrInitializeNtSessionList
- *
- * The CsrInitializeNtSessionList routine sets up support for CSR Sessions.
- *
- * @param None
- *
- * @return None
- *
- * @remarks None.
- *
- *--*/
-NTSTATUS
-NTAPI
-CsrInitializeNtSessionList(VOID)
-{
- DPRINT("CSRSRV: %s called\n", __FUNCTION__);
-
- /* Initialize the Session List */
- InitializeListHead(&CsrNtSessionList);
-
- /* Initialize the Session Lock */
- return RtlInitializeCriticalSection(&CsrNtSessionLock);
-}
-
-/*++
- * @name CsrAllocateNtSession
- *
- * The CsrAllocateNtSession routine allocates a new CSR NT Session.
- *
- * @param SessionId
- * Session ID of the CSR NT Session to allocate.
- *
- * @return Pointer to the newly allocated CSR NT Session.
- *
- * @remarks None.
- *
- *--*/
-PCSR_NT_SESSION
-NTAPI
-CsrAllocateNtSession(IN ULONG SessionId)
-{
- PCSR_NT_SESSION NtSession;
-
- /* Allocate an NT Session Object */
- NtSession = RtlAllocateHeap(CsrHeap, 0, sizeof(CSR_NT_SESSION));
- if (NtSession)
- {
- /* Setup the Session Object */
- NtSession->SessionId = SessionId;
- NtSession->ReferenceCount = 1;
-
- /* Insert it into the Session List */
- CsrAcquireNtSessionLock();
- InsertHeadList(&CsrNtSessionList, &NtSession->SessionLink);
- CsrReleaseNtSessionLock();
- }
- else
- {
- ASSERT(NtSession != NULL);
- }
-
- /* Return the Session (or NULL) */
- return NtSession;
-}
-
-/*++
- * @name CsrReferenceNtSession
- *
- * The CsrReferenceNtSession increases the reference count of a CSR NT Session.
- *
- * @param Session
- * Pointer to the CSR NT Session to reference.
- *
- * @return None.
- *
- * @remarks None.
- *
- *--*/
-VOID
-NTAPI
-CsrReferenceNtSession(IN PCSR_NT_SESSION Session)
-{
- /* Acquire the lock */
- CsrAcquireNtSessionLock();
-
- /* Sanity checks */
- ASSERT(!IsListEmpty(&Session->SessionLink));
- ASSERT(Session->SessionId != 0);
- ASSERT(Session->ReferenceCount != 0);
-
- /* Increase the reference count */
- Session->ReferenceCount++;
-
- /* Release the lock */
- CsrReleaseNtSessionLock();
-}
-
-/*++
- * @name CsrDereferenceNtSession
- *
- * The CsrDereferenceNtSession decreases the reference count of a
- * CSR NT Session.
- *
- * @param Session
- * Pointer to the CSR NT Session to reference.
- *
- * @param ExitStatus
- * If this is the last reference to the session, this argument
- * specifies the exit status.
- *
- * @return None.
- *
- * @remarks CsrDereferenceNtSession will complete the session if
- * the last reference to it has been closed.
- *
- *--*/
-VOID
-NTAPI
-CsrDereferenceNtSession(IN PCSR_NT_SESSION Session,
- IN NTSTATUS ExitStatus)
-{
- /* Acquire the lock */
- CsrAcquireNtSessionLock();
-
- /* Sanity checks */
- ASSERT(!IsListEmpty(&Session->SessionLink));
- ASSERT(Session->SessionId != 0);
- ASSERT(Session->ReferenceCount != 0);
-
- /* Dereference the Session Object */
- if (!(--Session->ReferenceCount))
- {
- /* Remove it from the list */
- RemoveEntryList(&Session->SessionLink);
-
- /* Release the lock */
- CsrReleaseNtSessionLock();
-
- /* Tell SM that we're done here */
- SmSessionComplete(CsrSmApiPort, Session->SessionId, ExitStatus);
-
- /* Free the Session Object */
- RtlFreeHeap(CsrHeap, 0, Session);
- }
- else
- {
- /* Release the lock, the Session is still active */
- CsrReleaseNtSessionLock();
- }
-}
-
-
-/* SESSION MANAGER FUNCTIONS**************************************************/
-
-/*++
- * @name CsrSbCreateSession
- *
- * The CsrSbCreateSession API is called by the Session Manager whenever a new
- * session is created.
- *
- * @param ApiMessage
- * Pointer to the Session Manager API Message.
- *
- * @return TRUE in case of success, FALSE othwerwise.
- *
- * @remarks The CsrSbCreateSession routine will initialize a new CSR NT
- * Session and allocate a new CSR Process for the subsystem process.
- *
- *--*/
-BOOLEAN
-NTAPI
-CsrSbCreateSession(IN PSB_API_MSG ApiMessage)
-{
- PSB_CREATE_SESSION_MSG CreateSession = &ApiMessage->CreateSession;
- HANDLE hProcess, hThread;
- PCSR_PROCESS CsrProcess;
- NTSTATUS Status;
- KERNEL_USER_TIMES KernelTimes;
- PCSR_THREAD CsrThread;
- PVOID ProcessData;
- ULONG i;
-
- /* Save the Process and Thread Handles */
- hProcess = CreateSession->ProcessInfo.ProcessHandle;
- hThread = CreateSession->ProcessInfo.ThreadHandle;
-
- /* Lock the Processes */
- CsrAcquireProcessLock();
-
- /* Allocate a new process */
- CsrProcess = CsrAllocateProcess();
- if (!CsrProcess)
- {
- /* Fail */
- ApiMessage->ReturnValue = STATUS_NO_MEMORY;
- CsrReleaseProcessLock();
- return TRUE;
- }
-
- /* Set the exception port */
- Status = NtSetInformationProcess(hProcess,
- ProcessExceptionPort,
- &CsrApiPort,
- sizeof(HANDLE));
-
- /* Check for success */
- if (!NT_SUCCESS(Status))
- {
- /* Fail the request */
- CsrDeallocateProcess(CsrProcess);
- CsrReleaseProcessLock();
-
- /* Strange as it seems, NTSTATUSes are actually returned */
- return (BOOLEAN)STATUS_NO_MEMORY;
- }
-
- /* Get the Create Time */
- Status = NtQueryInformationThread(hThread,
- ThreadTimes,
- &KernelTimes,
- sizeof(KERNEL_USER_TIMES),
- NULL);
-
- /* Check for success */
- if (!NT_SUCCESS(Status))
- {
- /* Fail the request */
- CsrDeallocateProcess(CsrProcess);
- CsrReleaseProcessLock();
-
- /* Strange as it seems, NTSTATUSes are actually returned */
- return (BOOLEAN)Status;
- }
-
- /* Allocate a new Thread */
- CsrThread = CsrAllocateThread(CsrProcess);
- if (!CsrThread)
- {
- /* Fail the request */
- CsrDeallocateProcess(CsrProcess);
- ApiMessage->ReturnValue = STATUS_NO_MEMORY;
- CsrReleaseProcessLock();
- return TRUE;
- }
-
- /* Setup the Thread Object */
- CsrThread->CreateTime = KernelTimes.CreateTime;
- CsrThread->ClientId = CreateSession->ProcessInfo.ClientId;
- CsrThread->ThreadHandle = hThread;
- ProtectHandle(hThread);
- CsrThread->Flags = 0;
-
- /* Insert it into the Process List */
- CsrInsertThread(CsrProcess, CsrThread);
-
- /* Setup Process Data */
- CsrProcess->ClientId = CreateSession->ProcessInfo.ClientId;
- CsrProcess->ProcessHandle = hProcess;
- CsrProcess->NtSession = CsrAllocateNtSession(CreateSession->SessionId);
-
- /* Set the Process Priority */
- CsrSetBackgroundPriority(CsrProcess);
-
- /* Get the first data location */
- ProcessData = &CsrProcess->ServerData[CSR_SERVER_DLL_MAX];
-
- /* Loop every DLL */
- for (i = 0; i < CSR_SERVER_DLL_MAX; i++)
- {
- /* Check if the DLL is loaded and has Process Data */
- if (CsrLoadedServerDll[i] && CsrLoadedServerDll[i]->SizeOfProcessData)
- {
- /* Write the pointer to the data */
- CsrProcess->ServerData[i] = ProcessData;
-
- /* Move to the next data location */
- ProcessData = (PVOID)((ULONG_PTR)ProcessData +
- CsrLoadedServerDll[i]->SizeOfProcessData);
- }
- else
- {
- /* Nothing for this Process */
- CsrProcess->ServerData[i] = NULL;
- }
- }
-
- /* Insert the Process */
- CsrInsertProcess(NULL, NULL, CsrProcess);
-
- /* Activate the Thread */
- ApiMessage->ReturnValue = NtResumeThread(hThread, NULL);
-
- /* Release lock and return */
- CsrReleaseProcessLock();
- return TRUE;
-}
-
-/*++
- * @name CsrSbForeignSessionComplete
- *
- * The CsrSbForeignSessionComplete API is called by the Session Manager
- * whenever a foreign session is completed (ie: terminated).
- *
- * @param ApiMessage
- * Pointer to the Session Manager API Message.
- *
- * @return TRUE in case of success, FALSE othwerwise.
- *
- * @remarks The CsrSbForeignSessionComplete API is not yet implemented.
- *
- *--*/
-BOOLEAN
-NTAPI
-CsrSbForeignSessionComplete(IN PSB_API_MSG ApiMessage)
-{
- /* Deprecated/Unimplemented in NT */
- ApiMessage->ReturnValue = STATUS_NOT_IMPLEMENTED;
- return TRUE;
-}
-
-/*++
- * @name CsrSbTerminateSession
- *
- * The CsrSbTerminateSession API is called by the Session Manager
- * whenever a foreign session should be destroyed.
- *
- * @param ApiMessage
- * Pointer to the Session Manager API Message.
- *
- * @return TRUE in case of success, FALSE othwerwise.
- *
- * @remarks The CsrSbTerminateSession API is not yet implemented.
- *
- *--*/
-BOOLEAN
-NTAPI
-CsrSbTerminateSession(IN PSB_API_MSG ApiMessage)
-{
- ApiMessage->ReturnValue = STATUS_NOT_IMPLEMENTED;
- return TRUE;
-}
-
-/*++
- * @name CsrSbCreateProcess
- *
- * The CsrSbCreateProcess API is called by the Session Manager
- * whenever a foreign session is created and a new process should be started.
- *
- * @param ApiMessage
- * Pointer to the Session Manager API Message.
- *
- * @return TRUE in case of success, FALSE othwerwise.
- *
- * @remarks The CsrSbCreateProcess API is not yet implemented.
- *
- *--*/
-BOOLEAN
-NTAPI
-CsrSbCreateProcess(IN PSB_API_MSG ApiMessage)
-{
- ApiMessage->ReturnValue = STATUS_NOT_IMPLEMENTED;
- return TRUE;
-}
-
-/* EOF */
projects / reactos.git / blobdiff