reactos/services/eventlog/logport.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2002 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id$
  20  *
  21  * COPYRIGHT:        See COPYING in the top level directory
  22  * PROJECT:          ReactOS kernel
  23  * FILE:             services/eventlog/logport.c
  24  * PURPOSE:          Event logger service
  25  * PROGRAMMER:       Eric Kohl
  26  */
  27
  28 /* INCLUDES *****************************************************************/
  29
  30 #define UNICODE
  31
  32 #define NTOS_MODE_USER
  33 #include <ntos.h>
  34 #include <windows.h>
  35 #include <string.h>
  36
  37 #include "eventlog.h"
  38
  39 #define NDEBUG
  40 #include <debug.h>
  41
  42
  43 /* GLOBALS ******************************************************************/
  44
  45 HANDLE PortThreadHandle = NULL;
  46 HANDLE ConnectPortHandle = NULL;
  47 HANDLE MessagePortHandle = NULL;
  48
  49
  50 /* FUNCTIONS ****************************************************************/
  51
  52 static NTSTATUS
  53 InitLogPort (VOID)
  54 {
  55   OBJECT_ATTRIBUTES ObjectAttributes;
  56   UNICODE_STRING PortName;
  57   LPC_MAX_MESSAGE Request;
  58   NTSTATUS Status;
  59
  60   ConnectPortHandle = NULL;
  61   MessagePortHandle = NULL;
  62
  63   RtlInitUnicodeString(&PortName,
  64                        L"\\ErrorLogPort");
  65   InitializeObjectAttributes(&ObjectAttributes,
  66                              &PortName,
  67                              0,
  68                              NULL,
  69                              NULL);
  70
  71   Status = NtCreatePort(&ConnectPortHandle,
  72                         &ObjectAttributes,
  73                         0,
  74                         0x100,
  75                         0x2000);
  76   if (!NT_SUCCESS(Status))
  77     {
  78       DPRINT1("NtCreatePort() failed (Status %lx)\n", Status);
  79       goto ByeBye;
  80     }
  81
  82   Status = NtListenPort(ConnectPortHandle,
  83                         &Request.Header);
  84   if (!NT_SUCCESS(Status))
  85     {
  86       DPRINT1("NtListenPort() failed (Status %lx)\n", Status);
  87       goto ByeBye;
  88     }
  89
  90   Status = NtAcceptConnectPort(&MessagePortHandle,
  91                                ConnectPortHandle,
  92                                NULL,
  93                                TRUE,
  94                                NULL,
  95                                NULL);
  96   if (!NT_SUCCESS (Status))
  97     {
  98       DPRINT1("NtAcceptConnectPort() failed (Status %lx)\n", Status);
  99       goto ByeBye;
 100     }
 101
 102   Status = NtCompleteConnectPort (MessagePortHandle);
 103   if (!NT_SUCCESS (Status))
 104     {
 105       DPRINT1("NtCompleteConnectPort() failed (Status %lx)\n", Status);
 106       goto ByeBye;
 107     }
 108
 109 ByeBye:
 110   if (!NT_SUCCESS (Status))
 111     {
 112       if (ConnectPortHandle != NULL)
 113         NtClose (ConnectPortHandle);
 114
 115       if (MessagePortHandle != NULL)
 116         NtClose (MessagePortHandle);
 117     }
 118
 119   return Status;
 120 }
 121
 122
 123 static NTSTATUS
 124 ProcessPortMessage(VOID)
 125 {
 126   LPC_MAX_MESSAGE Request;
 127   PIO_ERROR_LOG_MESSAGE Message;
 128 //#ifndef NDEBUG
 129   ULONG i;
 130   PWSTR p;
 131 //#endif
 132   NTSTATUS Status;
 133
 134
 135   DPRINT1("ProcessPortMessage() called\n");
 136
 137   Status = STATUS_SUCCESS;
 138
 139   while (TRUE)
 140     {
 141       Status = NtReplyWaitReceivePort(MessagePortHandle,
 142                                       0,
 143                                       NULL,
 144                                       &Request.Header);
 145       if (!NT_SUCCESS(Status))
 146         {
 147           DPRINT1("NtReplyWaitReceivePort() failed (Status %lx)\n", Status);
 148           break;
 149         }
 150
 151       DPRINT ("Received message\n");
 152
 153       if (Request.Header.MessageType == LPC_PORT_CLOSED)
 154         {
 155           DPRINT ("Port closed\n");
 156
 157           return (STATUS_UNSUCCESSFUL);
 158         }
 159       if (Request.Header.MessageType == LPC_REQUEST)
 160         {
 161           DPRINT ("Received request\n");
 162
 163         }
 164       else if (Request.Header.MessageType == LPC_DATAGRAM)
 165         {
 166           DPRINT ("Received datagram\n");
 167
 168
 169           Message = (PIO_ERROR_LOG_MESSAGE)&Request.Data;
 170
 171           DPRINT ("Message->Type %hx\n", Message->Type);
 172           DPRINT ("Message->Size %hu\n", Message->Size);
 173
 174 //#ifndef NDEBUG
 175           DbgPrint ("\n Error mesage:\n");
 176           DbgPrint ("Error code: %lx\n", Message->EntryData.ErrorCode);
 177           DbgPrint ("Retry count: %u\n", Message->EntryData.RetryCount);
 178           DbgPrint ("Sequence number: %lu\n", Message->EntryData.SequenceNumber);
 179
 180           if (Message->DriverNameLength != 0)
 181             {
 182               DbgPrint ("Driver name: %.*S\n",
 183                         Message->DriverNameLength / sizeof(WCHAR),
 184                         (PWCHAR)((ULONG_PTR)Message + Message->DriverNameOffset));
 185             }
 186
 187           if (Message->EntryData.NumberOfStrings != 0)
 188             {
 189               p = (PWSTR)((ULONG_PTR)&Message->EntryData + Message->EntryData.StringOffset);
 190               for (i = 0; i < Message->EntryData.NumberOfStrings; i++)
 191                 {
 192                   DbgPrint ("String %lu: %S\n", i, p);
 193                   p += wcslen(p) + 1;
 194                 }
 195               DbgPrint("\n");
 196             }
 197
 198 //#endif
 199         }
 200     }
 201
 202   return Status;
 203 }
 204
 205
 206 static NTSTATUS STDCALL
 207 PortThreadRoutine(PVOID Param)
 208 {
 209   NTSTATUS Status = STATUS_SUCCESS;
 210
 211   Status = InitLogPort();
 212   if (!NT_SUCCESS(Status))
 213     return(Status);
 214
 215   while (NT_SUCCESS(Status))
 216     {
 217       Status = ProcessPortMessage();
 218     }
 219
 220   if (ConnectPortHandle != NULL)
 221     NtClose (ConnectPortHandle);
 222
 223   if (MessagePortHandle != NULL)
 224     NtClose (MessagePortHandle);
 225
 226   return(Status);
 227 }
 228
 229
 230 BOOL
 231 StartPortThread(VOID)
 232 {
 233   DWORD ThreadId;
 234
 235   PortThreadHandle = CreateThread(NULL,
 236                                   0x1000,
 237                                   (LPTHREAD_START_ROUTINE)PortThreadRoutine,
 238                                   NULL,
 239                                   0,
 240                                   &ThreadId);
 241
 242   return((PortThreadHandle != NULL));
 243 }
 244
 245 /* EOF */