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196 lines
5.9 KiB
C
196 lines
5.9 KiB
C
![]() |
/* $Id: api.c,v 1.3 2002/10/29 04:45:58 rex Exp $
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*
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* PROJECT : ReactOS / POSIX+ Environment Subsystem Server
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* FILE : reactos/subsys/psx/server/port/api.c
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* DESCRIPTION: \POSIX+\ApiPort LPC port logic.
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* DATE : 2001-04-04
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* AUTHOR : Emanuele Aliberti <eal@users.sf.net>
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*
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* --------------------------------------------------------------------
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*
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* This software is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write
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* to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
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* MA 02139, USA.
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*
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* --------------------------------------------------------------------
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*/
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#include <psxss.h>
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#include <psx/lpcproto.h>
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#include "utils.h"
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/**********************************************************************
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* ProcessConnectionRequest/ PRIVATE
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*
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* DESCRIPTION
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* This is called when a PSX process attaches to PSXDLL.DLL.
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*/
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PRIVATE NTSTATUS STDCALL
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ProcessConnectionRequest (PLPC_MAX_MESSAGE pRequest)
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{
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PPSX_CONNECT_PORT_DATA pConnectData = (PPSX_CONNECT_PORT_DATA) & pRequest->Data;
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NTSTATUS Status;
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HANDLE hConnectedPort;
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ULONG ulPortIdentifier;
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debug_print (L"PSXSS: ->"__FUNCTION__);
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/* Check if the caller is a process */
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Status = PsxCheckConnectionRequest (
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pConnectData,
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PSX_CONNECTION_TYPE_PROCESS
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);
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if (!NT_SUCCESS(Status))
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{
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Status = NtAcceptConnectPort (
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& hConnectedPort,
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NULL,
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& pRequest->Header,
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FALSE, /* reject connection request */
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NULL,
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NULL
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);
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if (!NT_SUCCESS(Status))
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{
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debug_print(
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L"PSXSS: "__FUNCTION__": NtAcceptConnectPort failed with status=%08x",
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Status
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);
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}
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return STATUS_UNSUCCESSFUL;
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}
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/* OK, accept the connection */
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Status = NtAcceptConnectPort (
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& hConnectedPort,
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& ulPortIdentifier,
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& pRequest->Header,
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TRUE, /* accept connection request */
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NULL,
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NULL
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);
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if (!NT_SUCCESS(Status))
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{
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debug_print(L"PSXSS: "__FUNCTION__": NtAcceptConnectPort failed with status=%08x", Status);
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return Status;
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}
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Status = PsxCreateProcess (pRequest,hConnectedPort,ulPortIdentifier);
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if (!NT_SUCCESS(Status))
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{
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debug_print(L"PSXSS: "__FUNCTION__": PsxCreateProcess failed with status=%08x", Status);
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return Status;
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}
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Status = NtCompleteConnectPort (hConnectedPort);
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if (!NT_SUCCESS(Status))
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{
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debug_print(L"PSXSS: "__FUNCTION__": NtCompleteConnectPort failed with status=%08x", Status);
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return Status;
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}
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debug_print (L"PSXSS: <-"__FUNCTION__);
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return STATUS_SUCCESS;
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}
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/**********************************************************************
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* ProcessRequest/ PRIVATE
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*
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* DESCRIPTION
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* This is the actual POSIX system calls dispatcher.
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*/
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PRIVATE NTSTATUS STDCALL
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ProcessRequest (PPSX_MAX_MESSAGE pRequest)
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{
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debug_print (L"PSXSS: ->"__FUNCTION__);
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if (pRequest->PsxHeader.Procedure < PSX_SYSCALL_APIPORT_COUNT)
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{
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pRequest->PsxHeader.Status =
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SystemCall [pRequest->PsxHeader.Procedure] (pRequest);
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}
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else
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{
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pRequest->PsxHeader.Status = STATUS_INVALID_SYSTEM_SERVICE;
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}
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return STATUS_SUCCESS;
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}
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/**********************************************************************
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* ApiPortListener/1
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*
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* DESCRIPTION
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* The thread to process messages from the \POSIX+\ApiPort
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* LPC port. Mostly used by PSXDLL.DLL.
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*/
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VOID STDCALL
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ApiPortListener (PVOID pArg)
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{
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ULONG ulIndex = (ULONG) pArg;
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NTSTATUS Status;
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LPC_TYPE RequestType;
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ULONG PortIdentifier;
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PSX_MAX_MESSAGE Request;
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PPSX_MAX_MESSAGE Reply = NULL;
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BOOL NullReply = FALSE;
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debug_print (L"PSXSS: ->"__FUNCTION__" pArg=%d", ulIndex);
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while (TRUE)
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{
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Reply = NULL;
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NullReply = FALSE;
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while (!NullReply)
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{
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Status = NtReplyWaitReceivePort (
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Server.Port[ulIndex].hObject,
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0,
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(PLPC_MESSAGE) Reply,
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(PLPC_MESSAGE) & Request
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);
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if (!NT_SUCCESS(Status))
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{
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break;
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}
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RequestType = PORT_MESSAGE_TYPE(Request);
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switch (RequestType)
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{
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case LPC_CONNECTION_REQUEST:
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ProcessConnectionRequest ((PLPC_MAX_MESSAGE) & Request);
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NullReply = TRUE;
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continue;
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case LPC_CLIENT_DIED:
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case LPC_PORT_CLOSED:
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case LPC_DEBUG_EVENT:
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case LPC_ERROR_EVENT:
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case LPC_EXCEPTION:
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NullReply = TRUE;
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continue;
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default:
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if (RequestType != LPC_REQUEST)
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{
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NullReply = TRUE;
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continue;
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}
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}
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Reply = & Request;
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Reply->PsxHeader.Status = ProcessRequest (& Request);
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NullReply = FALSE;
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}
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if ((STATUS_INVALID_HANDLE == Status) ||
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(STATUS_OBJECT_TYPE_MISMATCH == Status))
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{
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break;
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}
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}
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#ifdef __PSXSS_ON_W32__
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TerminateThread(GetCurrentThread(),Status);
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#else
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NtTerminateThread(NtCurrentThread(),Status);
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#endif
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}
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/* EOF */
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