reactos/subsys/csrss/api/wapi.c

   1 /* $Id: wapi.c,v 1.25 2002/11/12 00:48:26 mdill Exp $
   2  *
   3  * reactos/subsys/csrss/api/wapi.c
   4  *
   5  * Initialize the CSRSS subsystem server process.
   6  *
   7  * ReactOS Operating System
   8  *
   9  */
  10
  11 /* INCLUDES ******************************************************************/
  12
  13 #include <ddk/ntddk.h>
  14 #include <windows.h>
  15 #include <ntdll/rtl.h>
  16 #include <csrss/csrss.h>
  17 #include <debug.h>
  18
  19 #include "api.h"
  20
  21 /* GLOBALS *******************************************************************/
  22
  23 HANDLE CsrssApiHeap;
  24
  25 /* FUNCTIONS *****************************************************************/
  26
  27 typedef NTSTATUS (*CsrFunc)( PCSRSS_PROCESS_DATA, PCSRSS_API_REQUEST, PCSRSS_API_REPLY );
  28
  29 static const CsrFunc CsrFuncs[] = {
  30    CsrCreateProcess,
  31    CsrTerminateProcess,
  32    CsrWriteConsole,
  33    CsrReadConsole,
  34    CsrAllocConsole,
  35    CsrFreeConsole,
  36    CsrConnectProcess,
  37    CsrGetScreenBufferInfo,
  38    CsrSetCursor,
  39    CsrFillOutputChar,
  40    CsrReadInputEvent,
  41    CsrWriteConsoleOutputChar,
  42    CsrWriteConsoleOutputAttrib,
  43    CsrFillOutputAttrib,
  44    CsrGetCursorInfo,
  45    CsrSetCursorInfo,
  46    CsrSetTextAttrib,
  47    CsrGetConsoleMode,
  48    CsrSetConsoleMode,
  49    CsrCreateScreenBuffer,
  50    CsrSetScreenBuffer,
  51    CsrSetTitle,
  52    CsrGetTitle,
  53    CsrWriteConsoleOutput,
  54    CsrFlushInputBuffer,
  55    CsrScrollConsoleScreenBuffer,
  56    CsrReadConsoleOutputChar,
  57    CsrReadConsoleOutputAttrib,
  58    CsrGetNumberOfConsoleInputEvents,
  59    CsrRegisterServicesProcess,
  60    CsrExitReactos,
  61    CsrGetShutdownParameters,
  62    CsrSetShutdownParameters,
  63    CsrPeekConsoleInput,
  64    CsrReadConsoleOutput,
  65    CsrWriteConsoleInput,
  66    0 };
  67
  68 static void Thread_Api2(HANDLE ServerPort)
  69 {
  70    NTSTATUS Status;
  71    LPC_MAX_MESSAGE LpcReply;
  72    LPC_MAX_MESSAGE LpcRequest;
  73    PCSRSS_API_REQUEST Request;
  74    PCSRSS_PROCESS_DATA ProcessData;
  75    PCSRSS_API_REPLY Reply;
  76
  77    Reply = NULL;
  78
  79    for (;;)
  80      {
  81         Status = NtReplyWaitReceivePort(ServerPort,
  82                                         0,
  83                                         &Reply->Header,
  84                                         &LpcRequest.Header);
  85         if ( !NT_SUCCESS( Status ) )
  86           {
  87              DisplayString(L"CSR: NtReplyWaitReceivePort failed\n");
  88           }
  89
  90         if ( LpcRequest.Header.MessageType == LPC_PORT_CLOSED )
  91
  92           {
  93              CsrFreeProcessData( (ULONG)LpcRequest.Header.Cid.UniqueProcess );
  94              NtClose(ServerPort);
  95              NtTerminateThread(NtCurrentThread(), STATUS_SUCCESS);
  96              continue;
  97           }
  98
  99         Request = (PCSRSS_API_REQUEST)&LpcRequest;
 100         Reply = (PCSRSS_API_REPLY)&LpcReply;
 101
 102         ProcessData = CsrGetProcessData(
 103                                   (ULONG)LpcRequest.Header.Cid.UniqueProcess);
 104
 105 //      DisplayString(L"CSR: Received request\n");
 106         if( Request->Type >= (sizeof( CsrFuncs ) / sizeof( CsrFunc )) - 1 )
 107             Reply->Status = STATUS_INVALID_SYSTEM_SERVICE;
 108         else CsrFuncs[ Request->Type ]( ProcessData, Request, Reply );
 109      }
 110 }
 111
 112 /**********************************************************************
 113  * NAME
 114  *      Thread_Api
 115  *
 116  * DESCRIPTION
 117  *      Handle connection requests from clients to the port
 118  *      "\Windows\ApiPort".
 119  */
 120 void Thread_Api(PVOID PortHandle)
 121 {
 122    NTSTATUS Status;
 123    LPC_MAX_MESSAGE Request;
 124    HANDLE ServerPort;
 125    HANDLE ServerThread;
 126    PCSRSS_PROCESS_DATA ProcessData;
 127
 128    CsrInitProcessData();
 129
 130    for (;;)
 131      {
 132        LPC_SECTION_READ LpcRead;
 133
 134         Status = NtListenPort(PortHandle, &Request.Header);
 135         if (!NT_SUCCESS(Status))
 136           {
 137              DisplayString(L"CSR: NtListenPort() failed\n");
 138              NtTerminateThread(NtCurrentThread(), Status);
 139           }
 140
 141         Status = NtAcceptConnectPort(&ServerPort,
 142                                      PortHandle,
 143                                      NULL,
 144                                      1,
 145                                      0,
 146                                      &LpcRead);
 147         if (!NT_SUCCESS(Status))
 148           {
 149              DisplayString(L"CSR: NtAcceptConnectPort() failed\n");
 150              NtTerminateThread(NtCurrentThread(), Status);
 151           }
 152
 153         ProcessData = CsrGetProcessData((ULONG)Request.Header.Cid.UniqueProcess);
 154         ProcessData->CsrSectionViewBase = LpcRead.ViewBase;
 155         ProcessData->CsrSectionViewSize = LpcRead.ViewSize;
 156
 157         Status = NtCompleteConnectPort(ServerPort);
 158         if (!NT_SUCCESS(Status))
 159           {
 160              DisplayString(L"CSR: NtCompleteConnectPort() failed\n");
 161              NtTerminateThread(NtCurrentThread(), Status);
 162           }
 163
 164         Status = RtlCreateUserThread(NtCurrentProcess(),
 165                                      NULL,
 166                                      FALSE,
 167                                      0,
 168                                      NULL,
 169                                      NULL,
 170                                      (PTHREAD_START_ROUTINE)Thread_Api2,
 171                                      ServerPort,
 172                                      &ServerThread,
 173                                      NULL);
 174         if (!NT_SUCCESS(Status))
 175           {
 176              DisplayString(L"CSR: Unable to create server thread\n");
 177              NtClose(ServerPort);
 178              NtTerminateThread(NtCurrentThread(), Status);
 179           }
 180         NtClose(ServerThread);
 181      }
 182 }
 183
 184 /* EOF */