reactos/subsys/csrss/api/wapi.c

   1 /* $Id: wapi.c,v 1.24 2002/10/31 01:50:00 ekohl 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    0 };
  65
  66 static void Thread_Api2(HANDLE ServerPort)
  67 {
  68    NTSTATUS Status;
  69    LPC_MAX_MESSAGE LpcReply;
  70    LPC_MAX_MESSAGE LpcRequest;
  71    PCSRSS_API_REQUEST Request;
  72    PCSRSS_PROCESS_DATA ProcessData;
  73    PCSRSS_API_REPLY Reply;
  74
  75    Reply = NULL;
  76
  77    for (;;)
  78      {
  79         Status = NtReplyWaitReceivePort(ServerPort,
  80                                         0,
  81                                         &Reply->Header,
  82                                         &LpcRequest.Header);
  83         if ( !NT_SUCCESS( Status ) )
  84           {
  85              DisplayString(L"CSR: NtReplyWaitReceivePort failed\n");
  86           }
  87
  88         if ( LpcRequest.Header.MessageType == LPC_PORT_CLOSED )
  89
  90           {
  91              CsrFreeProcessData( (ULONG)LpcRequest.Header.Cid.UniqueProcess );
  92              NtClose(ServerPort);
  93              NtTerminateThread(NtCurrentThread(), STATUS_SUCCESS);
  94              continue;
  95           }
  96
  97         Request = (PCSRSS_API_REQUEST)&LpcRequest;
  98         Reply = (PCSRSS_API_REPLY)&LpcReply;
  99
 100         ProcessData = CsrGetProcessData(
 101                                   (ULONG)LpcRequest.Header.Cid.UniqueProcess);
 102
 103 //      DisplayString(L"CSR: Received request\n");
 104         if( Request->Type >= (sizeof( CsrFuncs ) / sizeof( CsrFunc )) - 1 )
 105             Reply->Status = STATUS_INVALID_SYSTEM_SERVICE;
 106         else CsrFuncs[ Request->Type ]( ProcessData, Request, Reply );
 107      }
 108 }
 109
 110 /**********************************************************************
 111  * NAME
 112  *      Thread_Api
 113  *
 114  * DESCRIPTION
 115  *      Handle connection requests from clients to the port
 116  *      "\Windows\ApiPort".
 117  */
 118 void Thread_Api(PVOID PortHandle)
 119 {
 120    NTSTATUS Status;
 121    LPC_MAX_MESSAGE Request;
 122    HANDLE ServerPort;
 123    HANDLE ServerThread;
 124    PCSRSS_PROCESS_DATA ProcessData;
 125
 126    CsrInitProcessData();
 127
 128    for (;;)
 129      {
 130        LPC_SECTION_READ LpcRead;
 131
 132         Status = NtListenPort(PortHandle, &Request.Header);
 133         if (!NT_SUCCESS(Status))
 134           {
 135              DisplayString(L"CSR: NtListenPort() failed\n");
 136              NtTerminateThread(NtCurrentThread(), Status);
 137           }
 138
 139         Status = NtAcceptConnectPort(&ServerPort,
 140                                      PortHandle,
 141                                      NULL,
 142                                      1,
 143                                      0,
 144                                      &LpcRead);
 145         if (!NT_SUCCESS(Status))
 146           {
 147              DisplayString(L"CSR: NtAcceptConnectPort() failed\n");
 148              NtTerminateThread(NtCurrentThread(), Status);
 149           }
 150
 151         ProcessData = CsrGetProcessData((ULONG)Request.Header.Cid.UniqueProcess);
 152         ProcessData->CsrSectionViewBase = LpcRead.ViewBase;
 153         ProcessData->CsrSectionViewSize = LpcRead.ViewSize;
 154
 155         Status = NtCompleteConnectPort(ServerPort);
 156         if (!NT_SUCCESS(Status))
 157           {
 158              DisplayString(L"CSR: NtCompleteConnectPort() failed\n");
 159              NtTerminateThread(NtCurrentThread(), Status);
 160           }
 161
 162         Status = RtlCreateUserThread(NtCurrentProcess(),
 163                                      NULL,
 164                                      FALSE,
 165                                      0,
 166                                      NULL,
 167                                      NULL,
 168                                      (PTHREAD_START_ROUTINE)Thread_Api2,
 169                                      ServerPort,
 170                                      &ServerThread,
 171                                      NULL);
 172         if (!NT_SUCCESS(Status))
 173           {
 174              DisplayString(L"CSR: Unable to create server thread\n");
 175              NtClose(ServerPort);
 176              NtTerminateThread(NtCurrentThread(), Status);
 177           }
 178         NtClose(ServerThread);
 179      }
 180 }
 181
 182 /* EOF */