ntoskrnl/io/pnpmgr/pnpinit.c

   1 /*
   2  * PROJECT:         ReactOS Kernel
   3  * LICENSE:         BSD - See COPYING.ARM in the top level directory
   4  * FILE:            ntoskrnl/io/pnpmgr/pnpinit.c
   5  * PURPOSE:         PnP Initialization Code
   6  * PROGRAMMERS:     ReactOS Portable Systems Group
   7  */
   8
   9 /* INCLUDES *******************************************************************/
  10
  11 #include <ntoskrnl.h>
  12 #define NDEBUG
  13 #include <debug.h>
  14
  15 /* GLOBALS ********************************************************************/
  16
  17 typedef struct _IOPNP_DEVICE_EXTENSION
  18 {
  19     PWCHAR CompatibleIdList;
  20     ULONG CompatibleIdListSize;
  21 } IOPNP_DEVICE_EXTENSION, *PIOPNP_DEVICE_EXTENSION;
  22
  23 PUNICODE_STRING PiInitGroupOrderTable;
  24 USHORT PiInitGroupOrderTableCount;
  25 INTERFACE_TYPE PnpDefaultInterfaceType;
  26
  27 /* FUNCTIONS ******************************************************************/
  28
  29 INTERFACE_TYPE
  30 NTAPI
  31 IopDetermineDefaultInterfaceType(VOID)
  32 {
  33     /* FIXME: ReactOS doesn't support MicroChannel yet */
  34     return Isa;
  35 }
  36
  37 NTSTATUS
  38 NTAPI
  39 IopInitializeArbiters(VOID)
  40 {
  41      /* FIXME: TODO */
  42     return STATUS_SUCCESS;
  43 }
  44
  45 NTSTATUS
  46 NTAPI
  47 INIT_FUNCTION
  48 PiInitCacheGroupInformation(VOID)
  49 {
  50     HANDLE KeyHandle;
  51     NTSTATUS Status;
  52     PKEY_VALUE_FULL_INFORMATION KeyValueInformation;
  53     PUNICODE_STRING GroupTable;
  54     ULONG Count;
  55     UNICODE_STRING GroupString =
  56         RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet"
  57                             L"\\Control\\ServiceGroupOrder");
  58
  59     /* ReactOS HACK for SETUPLDR */
  60     if (KeLoaderBlock->SetupLdrBlock)
  61     {
  62         /* Bogus data */
  63         PiInitGroupOrderTableCount = 0;
  64         PiInitGroupOrderTable = (PVOID)0xBABEB00B;
  65         return STATUS_SUCCESS;
  66     }
  67
  68     /* Open the registry key */
  69     Status = IopOpenRegistryKeyEx(&KeyHandle,
  70                                   NULL,
  71                                   &GroupString,
  72                                   KEY_READ);
  73     if (NT_SUCCESS(Status))
  74     {
  75         /* Get the list */
  76         Status = IopGetRegistryValue(KeyHandle, L"List", &KeyValueInformation);
  77         ZwClose(KeyHandle);
  78
  79         /* Make sure we got it */
  80         if (NT_SUCCESS(Status))
  81         {
  82             /* Make sure it's valid */
  83             if ((KeyValueInformation->Type == REG_MULTI_SZ) &&
  84                 (KeyValueInformation->DataLength))
  85             {
  86                 /* Convert it to unicode strings */
  87                 Status = PnpRegMultiSzToUnicodeStrings(KeyValueInformation,
  88                                                        &GroupTable,
  89                                                        &Count);
  90
  91                 /* Cache it for later */
  92                 PiInitGroupOrderTable = GroupTable;
  93                 PiInitGroupOrderTableCount = (USHORT)Count;
  94             }
  95             else
  96             {
  97                 /* Fail */
  98                 Status = STATUS_UNSUCCESSFUL;
  99             }
 100
 101             /* Free the information */
 102             ExFreePool(KeyValueInformation);
 103         }
 104     }
 105
 106     /* Return status */
 107     return Status;
 108 }
 109
 110 USHORT
 111 NTAPI
 112 PpInitGetGroupOrderIndex(IN HANDLE ServiceHandle)
 113 {
 114     NTSTATUS Status;
 115     PKEY_VALUE_FULL_INFORMATION KeyValueInformation;
 116     USHORT i;
 117     PVOID Buffer;
 118     UNICODE_STRING Group;
 119     PAGED_CODE();
 120
 121     /* Make sure we have a cache */
 122     if (!PiInitGroupOrderTable) return -1;
 123
 124     /* If we don't have a handle, the rest is easy -- return the count */
 125     if (!ServiceHandle) return PiInitGroupOrderTableCount + 1;
 126
 127     /* Otherwise, get the group value */
 128     Status = IopGetRegistryValue(ServiceHandle, L"Group", &KeyValueInformation);
 129     if (!NT_SUCCESS(Status)) return PiInitGroupOrderTableCount;
 130
 131     /* Make sure we have a valid string */
 132     ASSERT(KeyValueInformation->Type == REG_SZ);
 133     ASSERT(KeyValueInformation->DataLength);
 134
 135     /* Convert to unicode string */
 136     Buffer = (PVOID)((ULONG_PTR)KeyValueInformation + KeyValueInformation->DataOffset);
 137     PnpRegSzToString(Buffer, KeyValueInformation->DataLength, &Group.Length);
 138     Group.MaximumLength = (USHORT)KeyValueInformation->DataLength;
 139     Group.Buffer = Buffer;
 140
 141     /* Loop the groups */
 142     for (i = 0; i < PiInitGroupOrderTableCount; i++)
 143     {
 144         /* Try to find a match */
 145         if (RtlEqualUnicodeString(&Group, &PiInitGroupOrderTable[i], TRUE)) break;
 146     }
 147
 148     /* We're done */
 149     ExFreePool(KeyValueInformation);
 150     return i;
 151 }
 152
 153 USHORT
 154 NTAPI
 155 PipGetDriverTagPriority(IN HANDLE ServiceHandle)
 156 {
 157     NTSTATUS Status;
 158     HANDLE KeyHandle = NULL;
 159     PKEY_VALUE_FULL_INFORMATION KeyValueInformation = NULL;
 160     PKEY_VALUE_FULL_INFORMATION KeyValueInformationTag;
 161     PKEY_VALUE_FULL_INFORMATION KeyValueInformationGroupOrderList;
 162     PVOID Buffer;
 163     UNICODE_STRING Group;
 164     PULONG GroupOrder;
 165     ULONG Count, Tag = 0;
 166     USHORT i = -1;
 167     UNICODE_STRING GroupString =
 168     RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet"
 169                         L"\\Control\\ServiceGroupOrder");
 170
 171     /* Open the key */
 172     Status = IopOpenRegistryKeyEx(&KeyHandle, NULL, &GroupString, KEY_READ);
 173     if (!NT_SUCCESS(Status)) goto Quickie;
 174
 175     /* Read the group */
 176     Status = IopGetRegistryValue(ServiceHandle, L"Group", &KeyValueInformation);
 177     if (!NT_SUCCESS(Status)) goto Quickie;
 178
 179     /* Make sure we have a group */
 180     if ((KeyValueInformation->Type == REG_SZ) &&
 181         (KeyValueInformation->DataLength))
 182     {
 183         /* Convert to unicode string */
 184         Buffer = (PVOID)((ULONG_PTR)KeyValueInformation + KeyValueInformation->DataOffset);
 185         PnpRegSzToString(Buffer, KeyValueInformation->DataLength, &Group.Length);
 186         Group.MaximumLength = (USHORT)KeyValueInformation->DataLength;
 187         Group.Buffer = Buffer;
 188     }
 189
 190     /* Now read the tag */
 191     Status = IopGetRegistryValue(ServiceHandle, L"Tag", &KeyValueInformationTag);
 192     if (!NT_SUCCESS(Status)) goto Quickie;
 193
 194     /* Make sure we have a tag */
 195     if ((KeyValueInformationTag->Type == REG_DWORD) &&
 196         (KeyValueInformationTag->DataLength))
 197     {
 198         /* Read it */
 199         Tag = *(PULONG)((ULONG_PTR)KeyValueInformationTag +
 200                         KeyValueInformationTag->DataOffset);
 201     }
 202
 203     /* We can get rid of this now */
 204     ExFreePool(KeyValueInformationTag);
 205
 206     /* Now let's read the group's tag order */
 207     Status = IopGetRegistryValue(KeyHandle,
 208                                  Group.Buffer,
 209                                  &KeyValueInformationGroupOrderList);
 210
 211     /* We can get rid of this now */
 212 Quickie:
 213     if (KeyValueInformation) ExFreePool(KeyValueInformation);
 214     if (KeyHandle) NtClose(KeyHandle);
 215     if (!NT_SUCCESS(Status)) return -1;
 216
 217     /* We're on the success path -- validate the tag order*/
 218     if ((KeyValueInformationGroupOrderList->Type == REG_BINARY) &&
 219         (KeyValueInformationGroupOrderList->DataLength))
 220     {
 221         /* Get the order array */
 222         GroupOrder = (PULONG)((ULONG_PTR)KeyValueInformationGroupOrderList +
 223                               KeyValueInformationGroupOrderList->DataOffset);
 224
 225         /* Get the count */
 226         Count = *GroupOrder;
 227         ASSERT(((Count + 1) * sizeof(ULONG)) <=
 228                KeyValueInformationGroupOrderList->DataLength);
 229
 230         /* Now loop each tag */
 231         GroupOrder++;
 232         for (i = 1; i <= Count; i++)
 233         {
 234             /* If we found it, we're out */
 235             if (Tag == *GroupOrder) break;
 236
 237             /* Try the next one */
 238             GroupOrder++;
 239         }
 240     }
 241
 242     /* Last buffer to free */
 243     ExFreePool(KeyValueInformationGroupOrderList);
 244     return i;
 245 }
 246
 247 NTSTATUS
 248 NTAPI
 249 PipCallDriverAddDevice(IN PDEVICE_NODE DeviceNode,
 250                        IN BOOLEAN LoadDriver,
 251                        IN PDRIVER_OBJECT DriverObject)
 252 {
 253     NTSTATUS Status;
 254     HANDLE EnumRootKey, SubKey, ControlKey, ClassKey, PropertiesKey;
 255     UNICODE_STRING ClassGuid, Properties;
 256     UNICODE_STRING EnumRoot = RTL_CONSTANT_STRING(ENUM_ROOT);
 257     UNICODE_STRING ControlClass =
 258     RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\Class");
 259     PKEY_VALUE_FULL_INFORMATION KeyValueInformation = NULL;
 260     PWCHAR Buffer;
 261
 262     /* Open enumeration root key */
 263     Status = IopOpenRegistryKeyEx(&EnumRootKey,
 264                                   NULL,
 265                                   &EnumRoot,
 266                                   KEY_READ);
 267     if (!NT_SUCCESS(Status))
 268     {
 269         DPRINT1("IopOpenRegistryKeyEx() failed with Status %08X\n", Status);
 270         return Status;
 271     }
 272
 273     /* Open instance subkey */
 274     Status = IopOpenRegistryKeyEx(&SubKey,
 275                                   EnumRootKey,
 276                                   &DeviceNode->InstancePath,
 277                                   KEY_READ);
 278     if (!NT_SUCCESS(Status))
 279     {
 280         DPRINT1("IopOpenRegistryKeyEx() failed with Status %08X\n", Status);
 281         ZwClose(EnumRootKey);
 282         return Status;
 283     }
 284
 285     /* Get class GUID */
 286     Status = IopGetRegistryValue(SubKey,
 287                                  REGSTR_VAL_CLASSGUID,
 288                                  &KeyValueInformation);
 289     if (NT_SUCCESS(Status))
 290     {
 291         /* Convert to unicode string */
 292         Buffer = (PVOID)((ULONG_PTR)KeyValueInformation + KeyValueInformation->DataOffset);
 293         PnpRegSzToString(Buffer, KeyValueInformation->DataLength, &ClassGuid.Length);
 294         ClassGuid.MaximumLength = (USHORT)KeyValueInformation->DataLength;
 295         ClassGuid.Buffer = Buffer;
 296
 297         /* Open the key */
 298         Status = IopOpenRegistryKeyEx(&ControlKey,
 299                                       NULL,
 300                                       &ControlClass,
 301                                       KEY_READ);
 302         if (!NT_SUCCESS(Status))
 303         {
 304             /* No class key */
 305             DPRINT1("IopOpenRegistryKeyEx() failed with Status %08X\n", Status);
 306             ClassKey = NULL;
 307         }
 308         else
 309         {
 310             /* Open the class key */
 311             Status = IopOpenRegistryKeyEx(&ClassKey,
 312                                           ControlKey,
 313                                           &ClassGuid,
 314                                           KEY_READ);
 315             ZwClose(ControlKey);
 316             if (!NT_SUCCESS(Status))
 317             {
 318                 /* No class key */
 319                 DPRINT1("IopOpenRegistryKeyEx() failed with Status %08X\n", Status);
 320                 ClassKey = NULL;
 321             }
 322         }
 323
 324         /* Check if we made it till here */
 325         if (ClassKey)
 326         {
 327             /* Get the device properties */
 328             RtlInitUnicodeString(&Properties, REGSTR_KEY_DEVICE_PROPERTIES);
 329             Status = IopOpenRegistryKeyEx(&PropertiesKey,
 330                                           ClassKey,
 331                                           &Properties,
 332                                           KEY_READ);
 333             if (!NT_SUCCESS(Status))
 334             {
 335                 /* No properties */
 336                 DPRINT("IopOpenRegistryKeyEx() failed with Status %08X\n", Status);
 337                 PropertiesKey = NULL;
 338             }
 339         }
 340
 341         /* Free the registry data */
 342         ExFreePool(KeyValueInformation);
 343     }
 344
 345     /* Do ReactOS-style setup */
 346     IopAttachFilterDrivers(DeviceNode, TRUE);
 347     Status = IopInitializeDevice(DeviceNode, DriverObject);
 348     if (NT_SUCCESS(Status))
 349     {
 350         IopAttachFilterDrivers(DeviceNode, FALSE);
 351         Status = IopStartDevice(DeviceNode);
 352     }
 353
 354     /* Return status */
 355     return Status;
 356 }
 357
 358 NTSTATUS
 359 NTAPI
 360 INIT_FUNCTION
 361 IopInitializePlugPlayServices(VOID)
 362 {
 363     NTSTATUS Status;
 364     ULONG Disposition;
 365     HANDLE KeyHandle, EnumHandle, ParentHandle, TreeHandle;
 366     UNICODE_STRING KeyName = RTL_CONSTANT_STRING(L"\\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET");
 367     PDEVICE_OBJECT Pdo;
 368
 369     /* Initialize locks and such */
 370     KeInitializeSpinLock(&IopDeviceTreeLock);
 371
 372     /* Get the default interface */
 373     PnpDefaultInterfaceType = IopDetermineDefaultInterfaceType();
 374
 375     /* Initialize arbiters */
 376     Status = IopInitializeArbiters();
 377     if (!NT_SUCCESS(Status)) return Status;
 378
 379     /* Setup the group cache */
 380     Status = PiInitCacheGroupInformation();
 381     if (!NT_SUCCESS(Status)) return Status;
 382
 383     /* Open the current control set */
 384     Status = IopOpenRegistryKeyEx(&KeyHandle,
 385                                   NULL,
 386                                   &KeyName,
 387                                   KEY_ALL_ACCESS);
 388     if (!NT_SUCCESS(Status)) return Status;
 389
 390     /* Create the enum key */
 391     RtlInitUnicodeString(&KeyName, REGSTR_KEY_ENUM);
 392     Status = IopCreateRegistryKeyEx(&EnumHandle,
 393                                     KeyHandle,
 394                                     &KeyName,
 395                                     KEY_ALL_ACCESS,
 396                                     REG_OPTION_NON_VOLATILE,
 397                                     &Disposition);
 398     if (!NT_SUCCESS(Status)) return Status;
 399
 400     /* Check if it's a new key */
 401     if (Disposition == REG_CREATED_NEW_KEY)
 402     {
 403         /* FIXME: DACLs */
 404         DPRINT1("Need to build DACL\n");
 405     }
 406
 407     /* Create the root key */
 408     ParentHandle = EnumHandle;
 409     RtlInitUnicodeString(&KeyName, REGSTR_KEY_ROOTENUM);
 410     Status = IopCreateRegistryKeyEx(&EnumHandle,
 411                                     ParentHandle,
 412                                     &KeyName,
 413                                     KEY_ALL_ACCESS,
 414                                     REG_OPTION_NON_VOLATILE,
 415                                     &Disposition);
 416     NtClose(ParentHandle);
 417     if (!NT_SUCCESS(Status)) return Status;
 418     NtClose(EnumHandle);
 419
 420     /* Open the root key now */
 421     RtlInitUnicodeString(&KeyName, L"\\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\ENUM");
 422     Status = IopOpenRegistryKeyEx(&EnumHandle,
 423                                   NULL,
 424                                   &KeyName,
 425                                   KEY_ALL_ACCESS);
 426     if (NT_SUCCESS(Status))
 427     {
 428         /* Create the root dev node */
 429         RtlInitUnicodeString(&KeyName, REGSTR_VAL_ROOT_DEVNODE);
 430         Status = IopCreateRegistryKeyEx(&TreeHandle,
 431                                         EnumHandle,
 432                                         &KeyName,
 433                                         KEY_ALL_ACCESS,
 434                                         REG_OPTION_NON_VOLATILE,
 435                                         NULL);
 436         NtClose(EnumHandle);
 437         if (NT_SUCCESS(Status)) NtClose(TreeHandle);
 438     }
 439
 440     /* Create the root driver */
 441     Status = IoCreateDriver(NULL, PnpRootDriverEntry);
 442     if (!NT_SUCCESS(Status))
 443     {
 444         DPRINT1("IoCreateDriverObject() failed\n");
 445         KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, Status, 0, 0, 0);
 446     }
 447
 448     /* Create the root PDO */
 449     Status = IoCreateDevice(IopRootDriverObject,
 450                             sizeof(IOPNP_DEVICE_EXTENSION),
 451                             NULL,
 452                             FILE_DEVICE_CONTROLLER,
 453                             0,
 454                             FALSE,
 455                             &Pdo);
 456     if (!NT_SUCCESS(Status))
 457     {
 458         DPRINT1("IoCreateDevice() failed\n");
 459         KeBugCheckEx(PHASE1_INITIALIZATION_FAILED, Status, 0, 0, 0);
 460     }
 461
 462     /* This is a bus enumerated device */
 463     Pdo->Flags |= DO_BUS_ENUMERATED_DEVICE;
 464
 465     /* Create the root device node */
 466     IopRootDeviceNode = PipAllocateDeviceNode(Pdo);
 467
 468     /* Set flags */
 469     IopRootDeviceNode->Flags |= DNF_STARTED + DNF_PROCESSED + DNF_ENUMERATED +
 470                                 DNF_MADEUP + DNF_NO_RESOURCE_REQUIRED +
 471                                 DNF_ADDED;
 472
 473     /* Create instance path */
 474     RtlCreateUnicodeString(&IopRootDeviceNode->InstancePath,
 475                            REGSTR_VAL_ROOT_DEVNODE);
 476
 477     /* Call the add device routine */
 478     IopRootDriverObject->DriverExtension->AddDevice(IopRootDriverObject,
 479                                                     IopRootDeviceNode->PhysicalDeviceObject);
 480
 481     /* Initialize PnP-Event notification support */
 482     Status = IopInitPlugPlayEvents();
 483     if (!NT_SUCCESS(Status)) return Status;
 484
 485     /* Report the device to the user-mode pnp manager */
 486     IopQueueTargetDeviceEvent(&GUID_DEVICE_ARRIVAL,
 487                               &IopRootDeviceNode->InstancePath);
 488
 489     /* Initialize the Bus Type GUID List */
 490     PnpBusTypeGuidList = ExAllocatePool(PagedPool, sizeof(IO_BUS_TYPE_GUID_LIST));
 491     RtlZeroMemory(PnpBusTypeGuidList, sizeof(IO_BUS_TYPE_GUID_LIST));
 492     ExInitializeFastMutex(&PnpBusTypeGuidList->Lock);
 493
 494     /* Launch the firmware mapper */
 495     Status = IopUpdateRootKey();
 496     if (!NT_SUCCESS(Status)) return Status;
 497
 498     /* Close the handle to the control set */
 499     NtClose(KeyHandle);
 500
 501     /* We made it */
 502     return STATUS_SUCCESS;
 503 }
 504
 505 /* EOF */