[mirror_edk2.git] / MdeModulePkg / Universal / BdsDxe / Capsules.c

/** @file\r
  BDS routines to handle capsules.\r
\r
Copyright (c) 2004 - 2008, Intel Corporation. <BR>\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
#include "Bds.h"\r
\r
/**\r
  This function locks the block \r
\r
  @param CpuIo           A instance of EFI_CPU_IO_PROTOCOL. \r
  @param Base            The base address flash region to be locked.\r
\r
  @return VOID           No return.\r
\r
**/\r
VOID\r
BdsLockFv (\r
  IN EFI_CPU_IO_PROTOCOL          *CpuIo,\r
  IN EFI_PHYSICAL_ADDRESS         Base\r
  )\r
{\r
  EFI_FV_BLOCK_MAP_ENTRY      *BlockMap;\r
  EFI_FIRMWARE_VOLUME_HEADER  *FvHeader;\r
  EFI_PHYSICAL_ADDRESS        BaseAddress;\r
  UINT8                       Data;\r
  UINT32                      BlockLength;\r
  UINTN                       Index;\r
\r
  BaseAddress = Base - 0x400000 + 2;\r
  FvHeader    = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINTN) (Base));\r
  BlockMap    = &(FvHeader->BlockMap[0]);\r
\r
  while ((BlockMap->NumBlocks != 0) && (BlockMap->Length != 0)) {\r
    BlockLength = BlockMap->Length;\r
    for (Index = 0; Index < BlockMap->NumBlocks; Index++) {\r
      CpuIo->Mem.Read (\r
                  CpuIo,\r
                  EfiCpuIoWidthUint8,\r
                  BaseAddress,\r
                  1,\r
                  &Data\r
                  );\r
      Data = (UINT8) (Data | 0x3);\r
      CpuIo->Mem.Write (\r
                  CpuIo,\r
                  EfiCpuIoWidthUint8,\r
                  BaseAddress,\r
                  1,\r
                  &Data\r
                  );\r
      BaseAddress += BlockLength;\r
    }\r
\r
    BlockMap++;\r
  }\r
}\r
\r
/**\r
\r
  This routine is called to see if there are any capsules we need to process.\r
  If the boot mode is not UPDATE, then we do nothing. Otherwise find the\r
  capsule HOBS and produce firmware volumes for them via the DXE service.\r
  Then call the dispatcher to dispatch drivers from them. Finally, check\r
  the status of the updates.\r
\r
\r
  @param BootMode        - the current boot mode\r
\r
  @retval  EFI_INVALID_PARAMETER  boot mode is not correct for an update\r
                                  Note:\r
                                  This function should be called by BDS in case we need to do some\r
                                  sort of processing even if there is no capsule to process. We\r
                                  need to do this if an earlier update went awry and we need to\r
                                  clear the capsule variable so on the next reset PEI does not see it and\r
                                  think there is a capsule available.\r
\r
**/\r
EFI_STATUS\r
ProcessCapsules (\r
  EFI_BOOT_MODE BootMode\r
  )\r
{\r
  EFI_STATUS                  Status;\r
  EFI_PEI_HOB_POINTERS        HobPointer;\r
  EFI_CAPSULE_HEADER          *CapsuleHeader;\r
  UINT32                      Size;\r
  UINT32                      CapsuleNumber;\r
  UINT32                      CapsuleTotalNumber;\r
  EFI_CAPSULE_TABLE           *CapsuleTable;\r
  UINT32                      Index;\r
  UINT32                      CacheIndex;\r
  UINT32                      CacheNumber;\r
  VOID                        **CapsulePtr;\r
  VOID                        **CapsulePtrCache;\r
  EFI_GUID                    *CapsuleGuidCache; \r
  CAPSULE_HOB_INFO            *CapsuleHobInfo;\r
\r
  CapsuleNumber = 0;\r
  CapsuleTotalNumber = 0;\r
  CacheIndex   = 0;\r
  CacheNumber  = 0;\r
  CapsulePtr        = NULL;\r
  CapsulePtrCache   = NULL;\r
  CapsuleGuidCache  = NULL;\r
\r
  //\r
  // We don't do anything else if the boot mode is not flash-update\r
  //\r
  if (BootMode != BOOT_ON_FLASH_UPDATE) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
  \r
  Status = EFI_SUCCESS;\r
  //\r
  // Find all capsule images from hob\r
  //\r
  HobPointer.Raw = GetHobList ();\r
  while ((HobPointer.Raw = GetNextGuidHob (&gEfiCapsuleVendorGuid, HobPointer.Raw)) != NULL) {\r
    CapsuleTotalNumber ++;\r
\r
    HobPointer.Raw = GET_NEXT_HOB (HobPointer);\r
  }\r
  \r
  if (CapsuleTotalNumber == 0) {\r
    //\r
    // We didn't find a hob, so had no errors.\r
    //\r
    PlatformBdsLockNonUpdatableFlash ();\r
    return EFI_SUCCESS;\r
  }\r
  \r
  //\r
  // Init temp Capsule Data table.\r
  //\r
  CapsulePtr       = (VOID **) AllocateZeroPool (sizeof (VOID *) * CapsuleTotalNumber);\r
  ASSERT (CapsulePtr != NULL);\r
  CapsulePtrCache  = (VOID **) AllocateZeroPool (sizeof (VOID *) * CapsuleTotalNumber);\r
  ASSERT (CapsulePtrCache != NULL);\r
  CapsuleGuidCache = (EFI_GUID *) AllocateZeroPool (sizeof (EFI_GUID) * CapsuleTotalNumber);\r
  ASSERT (CapsuleGuidCache != NULL);\r
  \r
  //\r
  // Find all capsule images from hob\r
  //\r
  HobPointer.Raw = GetHobList ();\r
  while ((HobPointer.Raw = GetNextGuidHob (&gEfiCapsuleVendorGuid, HobPointer.Raw)) != NULL) {\r
    CapsuleHobInfo = GET_GUID_HOB_DATA (HobPointer.Guid);\r
    CapsulePtr [CapsuleNumber++] = (VOID *)(UINTN)(CapsuleHobInfo->BaseAddress);\r
\r
    HobPointer.Raw = GET_NEXT_HOB (HobPointer);\r
  }\r
\r
  //\r
  //Check the capsule flags,if contains CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE, install\r
  //capsuleTable to configure table with EFI_CAPSULE_GUID\r
  //\r
\r
  //\r
  // Capsules who have CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE always are used for operating\r
  // System to have information persist across a system reset. EFI System Table must \r
  // point to an array of capsules that contains the same CapsuleGuid value. And agents\r
  // searching for this type capsule will look in EFI System Table and search for the \r
  // capsule's Guid and associated pointer to retrieve the data. Two steps below describes\r
  // how to sorting the capsules by the unique guid and install the array to EFI System Table. \r
  // Firstly, Loop for all coalesced capsules, record unique CapsuleGuids and cache them in an \r
  // array for later sorting capsules by CapsuleGuid.\r
  //\r
  for (Index = 0; Index < CapsuleTotalNumber; Index++) {\r
    CapsuleHeader = (EFI_CAPSULE_HEADER*) CapsulePtr [Index];\r
    if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) != 0) {\r
      //\r
      // For each capsule, we compare it with known CapsuleGuid in the CacheArray.\r
      // If already has the Guid, skip it. Whereas, record it in the CacheArray as \r
      // an additional one.\r
      //\r
      CacheIndex = 0;\r
      while (CacheIndex < CacheNumber) {\r
        if (CompareGuid(&CapsuleGuidCache[CacheIndex],&CapsuleHeader->CapsuleGuid)) {\r
          break;\r
        }\r
        CacheIndex++;\r
      }\r
      if (CacheIndex == CacheNumber) {\r
        CopyMem(&CapsuleGuidCache[CacheNumber++],&CapsuleHeader->CapsuleGuid,sizeof(EFI_GUID));\r
      }\r
    }\r
  }\r
\r
  //\r
  // Secondly, for each unique CapsuleGuid in CacheArray, gather all coalesced capsules\r
  // whose guid is the same as it, and malloc memory for an array which preceding\r
  // with UINT32. The array fills with entry point of capsules that have the same\r
  // CapsuleGuid, and UINT32 represents the size of the array of capsules. Then install\r
  // this array into EFI System Table, so that agents searching for this type capsule\r
  // will look in EFI System Table and search for the capsule's Guid and associated\r
  // pointer to retrieve the data.\r
  //\r
  CacheIndex = 0;\r
  while (CacheIndex < CacheNumber) {\r
    CapsuleNumber = 0;  \r
    for (Index = 0; Index < CapsuleTotalNumber; Index++) {\r
      CapsuleHeader = (EFI_CAPSULE_HEADER*) CapsulePtr [Index];\r
      if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) != 0) {\r
        if (CompareGuid (&CapsuleGuidCache[CacheIndex], &CapsuleHeader->CapsuleGuid)) {\r
          //\r
          // Cache Caspuleheader to the array, this array is uniqued with certain CapsuleGuid.\r
          //\r
          CapsulePtrCache[CapsuleNumber++] = (VOID*)CapsuleHeader;\r
        }\r
      }\r
    }\r
    if (CapsuleNumber != 0) {\r
      Size = sizeof(EFI_CAPSULE_TABLE) + (CapsuleNumber - 1) * sizeof(VOID*);  \r
      CapsuleTable = AllocateRuntimePool (Size);\r
      ASSERT (CapsuleTable != NULL);\r
      CapsuleTable->CapsuleArrayNumber =  CapsuleNumber;\r
      CopyMem(&CapsuleTable->CapsulePtr[0], CapsulePtrCache, CapsuleNumber * sizeof(VOID*));\r
      Status = gBS->InstallConfigurationTable (&CapsuleGuidCache[CacheIndex], (VOID*)CapsuleTable);\r
      ASSERT_EFI_ERROR (Status);\r
    }\r
    CacheIndex++;\r
  }\r
\r
  //\r
  // Besides ones with CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flag, all capsules left are\r
  // recognized by platform with CapsuleGuid. For general platform driver, UpdateFlash \r
  // type is commonly supported, so here only deal with encapsuled FVs capsule. Additional\r
  // type capsule transaction could be extended. It depends on platform policy.\r
  //\r
  for (Index = 0; Index < CapsuleTotalNumber; Index++) {\r
    CapsuleHeader = (EFI_CAPSULE_HEADER*) CapsulePtr [Index];\r
    if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) == 0) {\r
      //\r
      // Call capsule library to process capsule image.\r
      //\r
      ProcessCapsuleImage (CapsuleHeader);\r
    }\r
  }\r
\r
  PlatformBdsLockNonUpdatableFlash ();\r
  \r
  //\r
  // Free the allocated temp memory space.\r
  //\r
  FreePool (CapsuleGuidCache);\r
  FreePool (CapsulePtrCache);\r
  FreePool (CapsulePtr);\r
\r
  return Status;\r
}\r
Commit	Line	Data
fd6a62f3	1	/** @file\r
fd6a62f3	2	BDS routines to handle capsules.\r
93e3992d	3	\r
fd6a62f3	4	Copyright (c) 2004 - 2008, Intel Corporation. <BR>\r
93e3992d	5	All rights reserved. This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
fd6a62f3	13	**/\r
93e3992d	14	#include "Bds.h"\r
93e3992d	15	\r
b30312ba	16	/**\r
	17	This function locks the block \r
	18	\r
	19	@param CpuIo A instance of EFI_CPU_IO_PROTOCOL. \r
	20	@param Base The base address flash region to be locked.\r
	21	\r
	22	@return VOID No return.\r
	23	\r
	24	**/\r
93e3992d	25	VOID\r
	26	BdsLockFv (\r
	27	IN EFI_CPU_IO_PROTOCOL *CpuIo,\r
	28	IN EFI_PHYSICAL_ADDRESS Base\r
	29	)\r
	30	{\r
	31	EFI_FV_BLOCK_MAP_ENTRY *BlockMap;\r
	32	EFI_FIRMWARE_VOLUME_HEADER *FvHeader;\r
	33	EFI_PHYSICAL_ADDRESS BaseAddress;\r
	34	UINT8 Data;\r
	35	UINT32 BlockLength;\r
	36	UINTN Index;\r
	37	\r
	38	BaseAddress = Base - 0x400000 + 2;\r
	39	FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINTN) (Base));\r
	40	BlockMap = &(FvHeader->BlockMap[0]);\r
	41	\r
	42	while ((BlockMap->NumBlocks != 0) && (BlockMap->Length != 0)) {\r
	43	BlockLength = BlockMap->Length;\r
	44	for (Index = 0; Index < BlockMap->NumBlocks; Index++) {\r
	45	CpuIo->Mem.Read (\r
	46	CpuIo,\r
	47	EfiCpuIoWidthUint8,\r
	48	BaseAddress,\r
	49	1,\r
	50	&Data\r
	51	);\r
	52	Data = (UINT8) (Data \| 0x3);\r
	53	CpuIo->Mem.Write (\r
	54	CpuIo,\r
	55	EfiCpuIoWidthUint8,\r
	56	BaseAddress,\r
	57	1,\r
	58	&Data\r
	59	);\r
	60	BaseAddress += BlockLength;\r
	61	}\r
	62	\r
	63	BlockMap++;\r
	64	}\r
	65	}\r
	66	\r
b30312ba	67	/**\r
93e3992d	68	\r
	69	This routine is called to see if there are any capsules we need to process.\r
	70	If the boot mode is not UPDATE, then we do nothing. Otherwise find the\r
	71	capsule HOBS and produce firmware volumes for them via the DXE service.\r
	72	Then call the dispatcher to dispatch drivers from them. Finally, check\r
	73	the status of the updates.\r
	74	\r
93e3992d	75	\r
b30312ba	76	@param BootMode - the current boot mode\r
93e3992d	77	\r
b30312ba	78	@retval EFI_INVALID_PARAMETER boot mode is not correct for an update\r
	79	Note:\r
	80	This function should be called by BDS in case we need to do some\r
	81	sort of processing even if there is no capsule to process. We\r
	82	need to do this if an earlier update went awry and we need to\r
	83	clear the capsule variable so on the next reset PEI does not see it and\r
	84	think there is a capsule available.\r
93e3992d	85	\r
b30312ba	86	**/\r
	87	EFI_STATUS\r
	88	ProcessCapsules (\r
	89	EFI_BOOT_MODE BootMode\r
	90	)\r
93e3992d	91	{\r
	92	EFI_STATUS Status;\r
	93	EFI_PEI_HOB_POINTERS HobPointer;\r
	94	EFI_CAPSULE_HEADER *CapsuleHeader;\r
	95	UINT32 Size;\r
	96	UINT32 CapsuleNumber;\r
	97	UINT32 CapsuleTotalNumber;\r
	98	EFI_CAPSULE_TABLE *CapsuleTable;\r
	99	UINT32 Index;\r
	100	UINT32 CacheIndex;\r
	101	UINT32 CacheNumber;\r
	102	VOID **CapsulePtr;\r
	103	VOID **CapsulePtrCache;\r
	104	EFI_GUID *CapsuleGuidCache; \r
	105	CAPSULE_HOB_INFO *CapsuleHobInfo;\r
	106	\r
	107	CapsuleNumber = 0;\r
	108	CapsuleTotalNumber = 0;\r
	109	CacheIndex = 0;\r
	110	CacheNumber = 0;\r
	111	CapsulePtr = NULL;\r
	112	CapsulePtrCache = NULL;\r
	113	CapsuleGuidCache = NULL;\r
	114	\r
	115	//\r
	116	// We don't do anything else if the boot mode is not flash-update\r
	117	//\r
	118	if (BootMode != BOOT_ON_FLASH_UPDATE) {\r
	119	return EFI_INVALID_PARAMETER;\r
	120	}\r
	121	\r
	122	Status = EFI_SUCCESS;\r
	123	//\r
	124	// Find all capsule images from hob\r
	125	//\r
	126	HobPointer.Raw = GetHobList ();\r
	127	while ((HobPointer.Raw = GetNextGuidHob (&gEfiCapsuleVendorGuid, HobPointer.Raw)) != NULL) {\r
	128	CapsuleTotalNumber ++;\r
	129	\r
	130	HobPointer.Raw = GET_NEXT_HOB (HobPointer);\r
	131	}\r
	132	\r
	133	if (CapsuleTotalNumber == 0) {\r
	134	//\r
	135	// We didn't find a hob, so had no errors.\r
	136	//\r
	137	PlatformBdsLockNonUpdatableFlash ();\r
	138	return EFI_SUCCESS;\r
	139	}\r
	140	\r
	141	//\r
	142	// Init temp Capsule Data table.\r
	143	//\r
	144	CapsulePtr = (VOID *) AllocateZeroPool (sizeof (VOID ) * CapsuleTotalNumber);\r
	145	ASSERT (CapsulePtr != NULL);\r
	146	CapsulePtrCache = (VOID *) AllocateZeroPool (sizeof (VOID ) * CapsuleTotalNumber);\r
	147	ASSERT (CapsulePtrCache != NULL);\r
	148	CapsuleGuidCache = (EFI_GUID ) AllocateZeroPool (sizeof (EFI_GUID) CapsuleTotalNumber);\r
	149	ASSERT (CapsuleGuidCache != NULL);\r
	150	\r
	151	//\r
	152	// Find all capsule images from hob\r
	153	//\r
	154	HobPointer.Raw = GetHobList ();\r
155	while ((HobPointer.Raw = GetNextGuidHob (&gEfiCapsuleVendorGuid, HobPointer.Raw)) != NULL) {\r
156	CapsuleHobInfo = GET_GUID_HOB_DATA (HobPointer.Guid);\r
157	CapsulePtr [CapsuleNumber++] = (VOID *)(UINTN)(CapsuleHobInfo->BaseAddress);\r
158	\r
159	HobPointer.Raw = GET_NEXT_HOB (HobPointer);\r
160	}\r
161	\r
162	//\r
163	//Check the capsule flags,if contains CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE, install\r
164	//capsuleTable to configure table with EFI_CAPSULE_GUID\r
165	//\r
166	\r
167	//\r
168	// Capsules who have CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE always are used for operating\r
169	// System to have information persist across a system reset. EFI System Table must \r
170	// point to an array of capsules that contains the same CapsuleGuid value. And agents\r
171	// searching for this type capsule will look in EFI System Table and search for the \r
172	// capsule's Guid and associated pointer to retrieve the data. Two steps below describes\r
173	// how to sorting the capsules by the unique guid and install the array to EFI System Table. \r
174	// Firstly, Loop for all coalesced capsules, record unique CapsuleGuids and cache them in an \r
175	// array for later sorting capsules by CapsuleGuid.\r
176	//\r
177	for (Index = 0; Index < CapsuleTotalNumber; Index++) {\r
178	CapsuleHeader = (EFI_CAPSULE_HEADER*) CapsulePtr [Index];\r
179	if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) != 0) {\r
180	//\r
181	// For each capsule, we compare it with known CapsuleGuid in the CacheArray.\r
182	// If already has the Guid, skip it. Whereas, record it in the CacheArray as \r
183	// an additional one.\r
184	//\r
185	CacheIndex = 0;\r
186	while (CacheIndex < CacheNumber) {\r
187	if (CompareGuid(&CapsuleGuidCache[CacheIndex],&CapsuleHeader->CapsuleGuid)) {\r
188	break;\r
189	}\r
190	CacheIndex++;\r
191	}\r
192	if (CacheIndex == CacheNumber) {\r
193	CopyMem(&CapsuleGuidCache[CacheNumber++],&CapsuleHeader->CapsuleGuid,sizeof(EFI_GUID));\r
194	}\r
195	}\r
196	}\r
197	\r
198	//\r
199	// Secondly, for each unique CapsuleGuid in CacheArray, gather all coalesced capsules\r
200	// whose guid is the same as it, and malloc memory for an array which preceding\r
201	// with UINT32. The array fills with entry point of capsules that have the same\r
202	// CapsuleGuid, and UINT32 represents the size of the array of capsules. Then install\r
203	// this array into EFI System Table, so that agents searching for this type capsule\r
204	// will look in EFI System Table and search for the capsule's Guid and associated\r
205	// pointer to retrieve the data.\r
206	//\r
207	CacheIndex = 0;\r
208	while (CacheIndex < CacheNumber) {\r
209	CapsuleNumber = 0; \r
210	for (Index = 0; Index < CapsuleTotalNumber; Index++) {\r
211	CapsuleHeader = (EFI_CAPSULE_HEADER*) CapsulePtr [Index];\r
212	if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) != 0) {\r
213	if (CompareGuid (&CapsuleGuidCache[CacheIndex], &CapsuleHeader->CapsuleGuid)) {\r
214	//\r
215	// Cache Caspuleheader to the array, this array is uniqued with certain CapsuleGuid.\r
216	//\r
217	CapsulePtrCache[CapsuleNumber++] = (VOID*)CapsuleHeader;\r
218	}\r
219	}\r
220	}\r
221	if (CapsuleNumber != 0) {\r
222	Size = sizeof(EFI_CAPSULE_TABLE) + (CapsuleNumber - 1) * sizeof(VOID*); \r
223	CapsuleTable = AllocateRuntimePool (Size);\r
224	ASSERT (CapsuleTable != NULL);\r
225	CapsuleTable->CapsuleArrayNumber = CapsuleNumber;\r
226	CopyMem(&CapsuleTable->CapsulePtr[0], CapsulePtrCache, CapsuleNumber * sizeof(VOID*));\r
227	Status = gBS->InstallConfigurationTable (&CapsuleGuidCache[CacheIndex], (VOID*)CapsuleTable);\r
228	ASSERT_EFI_ERROR (Status);\r
229	}\r
230	CacheIndex++;\r
231	}\r
232	\r
233	//\r
234	// Besides ones with CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flag, all capsules left are\r
235	// recognized by platform with CapsuleGuid. For general platform driver, UpdateFlash \r
236	// type is commonly supported, so here only deal with encapsuled FVs capsule. Additional\r
237	// type capsule transaction could be extended. It depends on platform policy.\r
238	//\r
239	for (Index = 0; Index < CapsuleTotalNumber; Index++) {\r
240	CapsuleHeader = (EFI_CAPSULE_HEADER*) CapsulePtr [Index];\r
241	if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) == 0) {\r
242	//\r
243	// Call capsule library to process capsule image.\r
244	//\r
245	ProcessCapsuleImage (CapsuleHeader);\r
246	}\r
247	}\r
248	\r
249	PlatformBdsLockNonUpdatableFlash ();\r
250	\r
251	//\r
252	// Free the allocated temp memory space.\r
253	//\r
254	FreePool (CapsuleGuidCache);\r
255	FreePool (CapsulePtrCache);\r
256	FreePool (CapsulePtr);\r
257	\r
258	return Status;\r
259	}\r