reactos/lib/ntdll/dbg/debug.c

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