reactos/subsys/csrss/api/process.c

   1 /* $Id$
   2  *
   3  * reactos/subsys/csrss/api/process.c
   4  *
   5  * "\windows\ApiPort" port process management functions
   6  *
   7  * ReactOS Operating System
   8  */
   9
  10 /* INCLUDES ******************************************************************/
  11
  12 #include <csrss.h>
  13
  14 #define NDEBUG
  15 #include <debug.h>
  16
  17 #define LOCK   RtlEnterCriticalSection(&ProcessDataLock)
  18 #define UNLOCK RtlLeaveCriticalSection(&ProcessDataLock)
  19
  20 /* GLOBALS *******************************************************************/
  21
  22 static ULONG NrProcess;
  23 static PCSRSS_PROCESS_DATA ProcessData[256];
  24 RTL_CRITICAL_SECTION ProcessDataLock;
  25
  26 /* FUNCTIONS *****************************************************************/
  27
  28 VOID STDCALL CsrInitProcessData(VOID)
  29 {
  30    RtlZeroMemory (ProcessData, sizeof ProcessData);
  31    NrProcess = sizeof ProcessData / sizeof ProcessData[0];
  32    RtlInitializeCriticalSection( &ProcessDataLock );
  33 }
  34
  35 PCSRSS_PROCESS_DATA STDCALL CsrGetProcessData(HANDLE ProcessId)
  36 {
  37    ULONG hash;
  38    PCSRSS_PROCESS_DATA pProcessData;
  39
  40    hash = ((ULONG_PTR)ProcessId & ~0x3) % (sizeof(ProcessData) / sizeof(*ProcessData));
  41
  42    LOCK;
  43
  44    pProcessData = ProcessData[hash];
  45
  46    while (pProcessData && pProcessData->ProcessId != ProcessId)
  47    {
  48       pProcessData = pProcessData->next;
  49    }
  50    UNLOCK;
  51    return pProcessData;
  52 }
  53
  54 PCSRSS_PROCESS_DATA STDCALL CsrCreateProcessData(HANDLE ProcessId)
  55 {
  56    ULONG hash;
  57    PCSRSS_PROCESS_DATA pProcessData;
  58    OBJECT_ATTRIBUTES ObjectAttributes;
  59    CLIENT_ID ClientId;
  60    NTSTATUS Status;
  61
  62    hash = ((ULONG_PTR)ProcessId & ~0x3) % (sizeof(ProcessData) / sizeof(*ProcessData));
  63
  64    LOCK;
  65
  66    pProcessData = ProcessData[hash];
  67
  68    while (pProcessData && pProcessData->ProcessId != ProcessId)
  69    {
  70       pProcessData = pProcessData->next;
  71    }
  72    if (pProcessData == NULL)
  73    {
  74       pProcessData = RtlAllocateHeap(CsrssApiHeap,
  75                                      HEAP_ZERO_MEMORY,
  76                                      sizeof(CSRSS_PROCESS_DATA));
  77       if (pProcessData)
  78       {
  79          pProcessData->ProcessId = ProcessId;
  80          pProcessData->next = ProcessData[hash];
  81          ProcessData[hash] = pProcessData;
  82
  83          ClientId.UniqueThread = NULL;
  84          ClientId.UniqueProcess = pProcessData->ProcessId;
  85          InitializeObjectAttributes(&ObjectAttributes,
  86                                     NULL,
  87                                     0,
  88                                     NULL,
  89                                     NULL);
  90
  91          /* using OpenProcess is not optimal due to HANDLE vs. DWORD PIDs... */
  92          Status = NtOpenProcess(&pProcessData->Process,
  93                                 PROCESS_DUP_HANDLE | PROCESS_VM_OPERATION |
  94                                 PROCESS_VM_WRITE | PROCESS_CREATE_THREAD | SYNCHRONIZE,
  95                                 &ObjectAttributes,
  96                                 &ClientId);
  97          if (!NT_SUCCESS(Status))
  98          {
  99             ProcessData[hash] = pProcessData->next;
 100             RtlFreeHeap(CsrssApiHeap, 0, pProcessData);
 101             pProcessData = NULL;
 102          }
 103          RtlInitializeCriticalSection(&pProcessData->HandleTableLock);
 104       }
 105    }
 106    else
 107    {
 108       DPRINT("Process data for pid %d already exist\n", ProcessId);
 109    }
 110    UNLOCK;
 111    if (pProcessData == NULL)
 112    {
 113       DbgPrint("CSR: CsrGetProcessData() failed\n");
 114    }
 115    return pProcessData;
 116 }
 117
 118 NTSTATUS STDCALL CsrFreeProcessData(HANDLE Pid)
 119 {
 120   ULONG hash;
 121   UINT c;
 122   PCSRSS_PROCESS_DATA pProcessData, pPrevProcessData = NULL;
 123
 124   hash = ((ULONG_PTR)Pid & ~0x3) % (sizeof(ProcessData) / sizeof(*ProcessData));
 125
 126   LOCK;
 127
 128   pProcessData = ProcessData[hash];
 129
 130   while (pProcessData && pProcessData->ProcessId != Pid)
 131     {
 132       pPrevProcessData = pProcessData;
 133       pProcessData = pProcessData->next;
 134     }
 135
 136   if (pProcessData)
 137     {
 138       DPRINT("CsrFreeProcessData pid: %d\n", Pid);
 139       if (pProcessData->Process)
 140       {
 141          NtClose(pProcessData->Process);
 142       }
 143       if (pProcessData->Console)
 144         {
 145           RtlEnterCriticalSection(&ProcessDataLock);
 146           RemoveEntryList(&pProcessData->ProcessEntry);
 147           RtlLeaveCriticalSection(&ProcessDataLock);
 148         }
 149       if (pProcessData->HandleTable)
 150         {
 151           for (c = 0; c < pProcessData->HandleTableSize; c++)
 152             {
 153               if (pProcessData->HandleTable[c])
 154                 {
 155                   CsrReleaseObject(pProcessData, (HANDLE)(((c + 1) << 2)|0x3));
 156                 }
 157             }
 158           RtlFreeHeap(CsrssApiHeap, 0, pProcessData->HandleTable);
 159         }
 160       RtlDeleteCriticalSection(&pProcessData->HandleTableLock);
 161       if (pProcessData->Console)
 162         {
 163           CsrReleaseObjectByPointer((Object_t *) pProcessData->Console);
 164         }
 165       if (pProcessData->CsrSectionViewBase)
 166         {
 167           NtUnmapViewOfSection(NtCurrentProcess(), pProcessData->CsrSectionViewBase);
 168         }
 169       if (pPrevProcessData)
 170         {
 171           pPrevProcessData->next = pProcessData->next;
 172         }
 173       else
 174         {
 175           ProcessData[hash] = pProcessData->next;
 176         }
 177
 178       RtlFreeHeap(CsrssApiHeap, 0, pProcessData);
 179       UNLOCK;
 180       return STATUS_SUCCESS;
 181    }
 182
 183    UNLOCK;
 184    return STATUS_INVALID_PARAMETER;
 185 }
 186
 187
 188 /**********************************************************************
 189  *      CSRSS API
 190  *********************************************************************/
 191
 192 CSR_API(CsrCreateProcess)
 193 {
 194    PCSRSS_PROCESS_DATA NewProcessData;
 195    NTSTATUS Status;
 196
 197    Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 198    Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 199
 200    NewProcessData = CsrCreateProcessData(Request->Data.CreateProcessRequest.NewProcessId);
 201    if (NewProcessData == NULL)
 202      {
 203         Request->Status = STATUS_NO_MEMORY;
 204         return(STATUS_NO_MEMORY);
 205      }
 206
 207    if (!(Request->Data.CreateProcessRequest.Flags & (CREATE_NEW_CONSOLE|DETACHED_PROCESS)))
 208      {
 209        NewProcessData->ParentConsole = ProcessData->Console;
 210        NewProcessData->bInheritHandles = Request->Data.CreateProcessRequest.bInheritHandles;
 211        if (Request->Data.CreateProcessRequest.bInheritHandles)
 212          {
 213            Status = CsrDuplicateHandleTable(ProcessData, NewProcessData);
 214          }
 215      }
 216
 217    /* Set default shutdown parameters */
 218    NewProcessData->ShutdownLevel = 0x280;
 219    NewProcessData->ShutdownFlags = 0;
 220
 221    Request->Status = STATUS_SUCCESS;
 222    return(STATUS_SUCCESS);
 223 }
 224
 225 CSR_API(CsrTerminateProcess)
 226 {
 227    Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 228    Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE);
 229
 230    if (ProcessData == NULL)
 231    {
 232       return(Request->Status = STATUS_INVALID_PARAMETER);
 233    }
 234
 235    Request->Status = STATUS_SUCCESS;
 236    return STATUS_SUCCESS;
 237 }
 238
 239 CSR_API(CsrConnectProcess)
 240 {
 241    Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 242    Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 243
 244    Request->Status = STATUS_SUCCESS;
 245
 246    return(STATUS_SUCCESS);
 247 }
 248
 249 CSR_API(CsrGetShutdownParameters)
 250 {
 251   Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 252   Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 253
 254   if (ProcessData == NULL)
 255   {
 256      return(Request->Status = STATUS_INVALID_PARAMETER);
 257   }
 258
 259   Request->Data.GetShutdownParametersRequest.Level = ProcessData->ShutdownLevel;
 260   Request->Data.GetShutdownParametersRequest.Flags = ProcessData->ShutdownFlags;
 261
 262   Request->Status = STATUS_SUCCESS;
 263
 264   return(STATUS_SUCCESS);
 265 }
 266
 267 CSR_API(CsrSetShutdownParameters)
 268 {
 269   Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 270   Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 271
 272   if (ProcessData == NULL)
 273   {
 274      return(Request->Status = STATUS_INVALID_PARAMETER);
 275   }
 276
 277   ProcessData->ShutdownLevel = Request->Data.SetShutdownParametersRequest.Level;
 278   ProcessData->ShutdownFlags = Request->Data.SetShutdownParametersRequest.Flags;
 279
 280   Request->Status = STATUS_SUCCESS;
 281
 282   return(STATUS_SUCCESS);
 283 }
 284
 285 CSR_API(CsrGetInputHandle)
 286 {
 287    Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 288    Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 289
 290    if (ProcessData == NULL)
 291    {
 292       Request->Data.GetInputHandleRequest.InputHandle = INVALID_HANDLE_VALUE;
 293       Request->Status = STATUS_INVALID_PARAMETER;
 294    }
 295    else if (ProcessData->Console)
 296    {
 297       Request->Status = CsrInsertObject(ProcessData,
 298                                       &Request->Data.GetInputHandleRequest.InputHandle,
 299                                       (Object_t *)ProcessData->Console);
 300    }
 301    else
 302    {
 303       Request->Data.GetInputHandleRequest.InputHandle = INVALID_HANDLE_VALUE;
 304       Request->Status = STATUS_SUCCESS;
 305    }
 306
 307    return Request->Status;
 308 }
 309
 310 CSR_API(CsrGetOutputHandle)
 311 {
 312    Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 313    Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 314
 315    if (ProcessData == NULL)
 316    {
 317       Request->Data.GetOutputHandleRequest.OutputHandle = INVALID_HANDLE_VALUE;
 318       Request->Status = STATUS_INVALID_PARAMETER;
 319    }
 320    else if (ProcessData->Console)
 321    {
 322       RtlEnterCriticalSection(&ProcessDataLock);
 323       Request->Status = CsrInsertObject(ProcessData,
 324                                       &Request->Data.GetOutputHandleRequest.OutputHandle,
 325                                       &(ProcessData->Console->ActiveBuffer->Header));
 326       RtlLeaveCriticalSection(&ProcessDataLock);
 327    }
 328    else
 329    {
 330       Request->Data.GetOutputHandleRequest.OutputHandle = INVALID_HANDLE_VALUE;
 331       Request->Status = STATUS_SUCCESS;
 332    }
 333
 334    return Request->Status;
 335 }
 336
 337 CSR_API(CsrCloseHandle)
 338 {
 339    Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 340    Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 341
 342    if (ProcessData == NULL)
 343    {
 344       Request->Status = STATUS_INVALID_PARAMETER;
 345    }
 346    else
 347    {
 348       Request->Status = CsrReleaseObject(ProcessData, Request->Data.CloseHandleRequest.Handle);
 349    }
 350    return Request->Status;
 351 }
 352
 353 CSR_API(CsrVerifyHandle)
 354 {
 355    Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 356    Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 357
 358    Request->Status = CsrVerifyObject(ProcessData, Request->Data.VerifyHandleRequest.Handle);
 359    if (!NT_SUCCESS(Request->Status))
 360    {
 361       DPRINT("CsrVerifyObject failed, status=%x\n", Request->Status);
 362    }
 363
 364    return Request->Status;
 365 }
 366
 367 CSR_API(CsrDuplicateHandle)
 368 {
 369   Object_t *Object;
 370
 371   Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 372   Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 373
 374   ProcessData = CsrGetProcessData(Request->Data.DuplicateHandleRequest.ProcessId);
 375   Request->Status = CsrGetObject(ProcessData, Request->Data.DuplicateHandleRequest.Handle, &Object);
 376   if (! NT_SUCCESS(Request->Status))
 377     {
 378       DPRINT("CsrGetObject failed, status=%x\n", Request->Status);
 379     }
 380   else
 381     {
 382       Request->Status = CsrInsertObject(ProcessData,
 383                                       &Request->Data.DuplicateHandleRequest.Handle,
 384                                       Object);
 385     }
 386   return Request->Status;
 387 }
 388
 389 CSR_API(CsrGetInputWaitHandle)
 390 {
 391   Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
 392   Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - LPC_MESSAGE_BASE_SIZE;
 393
 394   if (ProcessData == NULL)
 395   {
 396
 397      Request->Data.GetConsoleInputWaitHandle.InputWaitHandle = INVALID_HANDLE_VALUE;
 398      Request->Status = STATUS_INVALID_PARAMETER;
 399   }
 400   else
 401   {
 402      Request->Data.GetConsoleInputWaitHandle.InputWaitHandle = ProcessData->ConsoleEvent;
 403      Request->Status = STATUS_SUCCESS;
 404   }
 405   return Request->Status;
 406 }
 407
 408 /* EOF */