reactos/lib/ntdll/dbg/debug.c

   1 /* $Id: debug.c,v 1.13 2003/12/30 05:10:32 hyperion Exp $
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            lib/ntdll/dbg/debug.c
   6  * PURPOSE:         User mode debugger support functions
   7  * PROGRAMMER:      Eric Kohl
   8  * UPDATE HISTORY:
   9  *                  14/04/2000 Created
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ddk/ntddk.h>
  15 #include <ntdll/rtl.h>
  16 #include <rosrtl/string.h>
  17 #include <rosrtl/thread.h>
  18 #include <ntdll/dbg.h>
  19 #include <napi/lpc.h>
  20
  21 /* FUNCTIONS *****************************************************************/
  22
  23 static HANDLE DbgSsApiPort = NULL;
  24 static HANDLE DbgSsReplyPort = NULL;
  25
  26
  27 typedef struct _LPC_DBGSS_MESSAGE
  28 {
  29         LPC_MESSAGE Header;
  30         ULONG Unknown1;
  31         ULONG Unknown2;
  32         ULONG Unknown3;
  33         ULONG Unknown4;
  34 } LPC_DBGSS_MESSAGE, *PLPC_DBGSS_MESSAGE;
  35
  36
  37 /* FUNCTIONS *****************************************************************/
  38
  39 VOID STDCALL
  40 DbgSsServerThread(PVOID Unused)
  41 {
  42         LPC_DBGSS_MESSAGE Message;
  43         NTSTATUS Status;
  44
  45         for (;;)
  46         {
  47                 Status = NtReplyWaitReceivePort (DbgSsApiPort,
  48                                                  NULL,
  49                                                  NULL,
  50                                                  (PLPC_MESSAGE)&Message);
  51                 if (!NT_SUCCESS(Status))
  52                 {
  53                         DbgPrint ("DbgSs: NtReplyWaitReceivePort failed - Status == %lx\n",
  54                                   Status);
  55
  56                         DbgBreakPoint ();
  57                 }
  58                 else
  59                 {
  60                         /* FIXME: missing code!! */
  61
  62                 }
  63         }
  64 }
  65
  66
  67 /*
  68  * @unimplemented
  69  */
  70 NTSTATUS STDCALL
  71 DbgSsHandleKmApiMsg(ULONG Unknown1,
  72                     HANDLE EventHandle)
  73 {
  74   return STATUS_NOT_IMPLEMENTED;
  75 }
  76
  77
  78 /*
  79  * @implemented
  80  */
  81 NTSTATUS STDCALL
  82 DbgSsInitialize(HANDLE ReplyPort,
  83                 ULONG Unknown1,
  84                 ULONG Unknown2,
  85                 ULONG Unknown3)
  86 {
  87         SECURITY_QUALITY_OF_SERVICE Qos;
  88         UNICODE_STRING PortName = ROS_STRING_INITIALIZER(L"\\DbgSsApiPort");
  89         NTSTATUS Status;
  90
  91         Qos.Length = sizeof(SECURITY_QUALITY_OF_SERVICE);
  92         Qos.ImpersonationLevel = SecurityIdentification;
  93         Qos.ContextTrackingMode = SECURITY_DYNAMIC_TRACKING;
  94         Qos.EffectiveOnly = TRUE;
  95
  96         Status = NtConnectPort (&DbgSsApiPort,
  97                                 &PortName,
  98                                 &Qos,
  99                                 NULL,
 100                                 NULL,
 101                                 NULL,
 102                                 NULL,
 103                                 NULL);
 104         if (!NT_SUCCESS(Status))
 105                 return Status;
 106
 107         DbgSsReplyPort = ReplyPort;
 108 //      UnknownData1 = Unknown1;
 109 //      UnknownData2 = Unknown2;
 110 //      UnknownData3 = Unknown3;
 111
 112         Status = RtlCreateUserThread (NtCurrentProcess (),
 113                                       NULL,
 114                                       FALSE,
 115                                       0,
 116                                       NULL,
 117                                       NULL,
 118                                       (PTHREAD_START_ROUTINE)DbgSsServerThread,
 119                                       NULL,
 120                                       NULL,
 121                                       NULL);
 122
 123         return Status;
 124 }
 125
 126
 127 /*
 128  * @implemented
 129  */
 130 NTSTATUS STDCALL
 131 DbgUiConnectToDbg(VOID)
 132 {
 133         SECURITY_QUALITY_OF_SERVICE Qos;
 134         UNICODE_STRING PortName = ROS_STRING_INITIALIZER(L"\\DbgUiApiPort");
 135         NTSTATUS Status;
 136         PTEB Teb;
 137         ULONG InfoSize;
 138
 139         Teb = NtCurrentTeb ();
 140
 141         Qos.Length = sizeof(SECURITY_QUALITY_OF_SERVICE);
 142         Qos.ImpersonationLevel = SecurityIdentification;
 143         Qos.ContextTrackingMode = SECURITY_DYNAMIC_TRACKING;
 144         Qos.EffectiveOnly = TRUE;
 145
 146         InfoSize = sizeof(ULONG);
 147
 148         Status = NtConnectPort (&Teb->DbgSsReserved[1],
 149                                 &PortName,
 150                                 &Qos,
 151                                 NULL,
 152                                 NULL,
 153                                 NULL,
 154                                 &Teb->DbgSsReserved[0],
 155                                 &InfoSize);
 156         if (!NT_SUCCESS(Status))
 157         {
 158                 Teb->DbgSsReserved[1] = NULL;
 159                 return Status;
 160         }
 161
 162         NtRegisterThreadTerminatePort(Teb->DbgSsReserved[1]);
 163
 164         return Status;
 165 }
 166
 167
 168 /*
 169  * @unimplemented
 170  */
 171 NTSTATUS STDCALL
 172 DbgUiContinue(PCLIENT_ID ClientId,
 173               ULONG ContinueStatus)
 174 {
 175   return STATUS_NOT_IMPLEMENTED;
 176 }
 177
 178
 179 /*
 180  * @unimplemented
 181  */
 182 NTSTATUS STDCALL
 183 DbgUiWaitStateChange(ULONG Unknown1,
 184                      ULONG Unknown2)
 185 {
 186   return STATUS_NOT_IMPLEMENTED;
 187 }
 188
 189 NTSTATUS STDCALL DbgUiRemoteBreakin(VOID)
 190 {
 191  DbgBreakPoint();
 192
 193  RtlRosExitUserThread(0);
 194
 195  DbgBreakPoint();
 196  return STATUS_SUCCESS;
 197 }
 198
 199 NTSTATUS STDCALL DbgUiIssueRemoteBreakin(HANDLE Process)
 200 {
 201  HANDLE hThread;
 202  CLIENT_ID cidClientId;
 203  NTSTATUS nErrCode;
 204  ULONG nStackSize = PAGE_SIZE;
 205
 206  nErrCode = RtlCreateUserThread
 207  (
 208   Process,
 209   NULL,
 210   FALSE,
 211   0,
 212   &nStackSize,
 213   &nStackSize,
 214   (PTHREAD_START_ROUTINE)DbgUiRemoteBreakin,
 215   NULL,
 216   &hThread,
 217   &cidClientId
 218  );
 219
 220  if(!NT_SUCCESS(nErrCode)) return nErrCode;
 221
 222  NtClose(hThread);
 223
 224  return STATUS_SUCCESS;
 225 }
 226
 227 /* EOF */