(ActionType == ACTION_SET_DEFAUTL_VALUE) ? &DefaultName:NULL, // it can be NULL to get the current setting.\r
&ConfigResp\r
);\r
-\r
+ \r
+ //\r
+ // The required setting can't be found. So, it is not required to be validated and set.\r
+ //\r
if (EFI_ERROR (Status)) {\r
Status = EFI_SUCCESS;\r
goto NextConfigAltResp;\r
}\r
+ //\r
+ // Only the ConfigHdr is found. Not any block data is found. No data is required to be validated and set.\r
+ //\r
+ if (StrStr (ConfigResp, L"&OFFSET=") == NULL) {\r
+ goto NextConfigAltResp;\r
+ }\r
\r
//\r
// 4. Set the default configuration information or Validate current setting by parse IFR code.\r
HiiPackageList = NULL;\r
}\r
\r
- if (ConfigResp != NULL) {\r
- FreePool (ConfigResp);\r
- ConfigResp = NULL;\r
- }\r
+ if (ConfigResp != NULL) {\r
+ FreePool (ConfigResp);\r
+ ConfigResp = NULL;\r
+ }\r
\r
//\r
// Free the allocated buffer.\r
return InternalHiiIfrValueAction (Request, DefaultId, ACTION_SET_DEFAUTL_VALUE);\r
}\r
\r
-/**\r
- Allocates and returns a Null-terminated Unicode <ConfigAltResp> string.\r
-\r
- If Guid is NULL, then ASSERT().\r
- If Name is NULL, then ASSERT().\r
- If BlockNameArray is NULL, then ASSERT().\r
-\r
- @param[in] Guid GUID of the buffer storage.\r
- @param[in] Name Name of the buffer storage.\r
- @param[in] DriverHandle The DriverHandle that support a Device Path\r
- Protocol. \r
- @param[in] BufferStorage Content of the buffer storage.\r
- @param[in] BufferStorageSize Length in bytes of the buffer storage.\r
- @param[in] BlockNameArray Array generated by VFR compiler. This array\r
- contains a UINT32 value that is the length\r
- of BlockNameArray in bytes, followed by pairs\r
- of 16-bit values that are the offset and length\r
- values used to contruct a <ConfigRequest> string.\r
- @param[in] ... A variable argument list that contains pairs of 16-bit\r
- ALTCFG identifiers and pointers to DefaultValueArrays.\r
- The variable argument list is terminated by a NULL \r
- DefaultValueArray pointer. A DefaultValueArray \r
- contains a UINT32 value that is the length, in bytes,\r
- of the DefaultValueArray. The UINT32 length value \r
- is followed by a series of records that contain\r
- a 16-bit WIDTH value followed by a byte array with \r
- WIDTH entries. The records must be parsed from\r
- beginning to end until the UINT32 length limit\r
- is reached. \r
-\r
- @retval NULL There are not enough resources to process the request.\r
- @retval NULL A <ConfigResp> could not be retrieved from the Config \r
- Routing Protocol.\r
- @retval Other A pointer to the Null-terminate Unicode <ConfigAltResp>\r
- string.\r
-\r
-**/\r
-EFI_STRING\r
-EFIAPI\r
-HiiConstructConfigAltResp (\r
- IN CONST EFI_GUID *Guid,\r
- IN CONST CHAR16 *Name,\r
- IN EFI_HANDLE DriverHandle,\r
- IN CONST VOID *BufferStorage,\r
- IN UINTN BufferStorageSize,\r
- IN CONST VOID *BlockNameArray, \r
- ...\r
- )\r
-{\r
- UINTN Length;\r
- CHAR16 *String;\r
- CHAR16 *ConfigHdr;\r
- UINT8 *Buffer;\r
- UINT8 *BufferEnd;\r
- CHAR16 *ConfigRequest;\r
- EFI_STRING ConfigResp;\r
- EFI_STRING ConfigAltResp;\r
- VA_LIST Args;\r
- UINTN AltCfgId;\r
- UINT16 Width;\r
- UINT16 OffsetValue;\r
- UINT16 WidthValue;\r
-\r
- ASSERT (Guid != NULL);\r
- ASSERT (Name != NULL);\r
- ASSERT (BlockNameArray != NULL);\r
-\r
- //\r
- // Initialize local variables\r
- //\r
- ConfigHdr = NULL;\r
- ConfigRequest = NULL; \r
- ConfigResp = NULL;\r
-\r
- //\r
- // Construct <ConfigHdr> : "GUID=...&NAME=...&PATH=..."\r
- //\r
- ConfigHdr = HiiConstructConfigHdr (Guid, Name, DriverHandle);\r
- if (ConfigHdr == NULL) {\r
- goto Exit;\r
- }\r
-\r
- //\r
- // Compute the length of the entire request starting with <ConfigHdr> and a \r
- // Null-terminator\r
- //\r
- Length = StrLen (ConfigHdr) + 1;\r
-\r
- //\r
- // Determine the size <BlockName> Offset/Width pairs\r
- //\r
- Buffer = (UINT8 *)BlockNameArray;\r
- BufferEnd = Buffer + ReadUnaligned32 ((UINT32 *)Buffer);\r
- Buffer += sizeof (UINT32);\r
-\r
- //\r
- // Add <BlockName> length that is composed of one or more Offset/Width pairs\r
- //\r
- // <BlockName> ::= &OFFSET=1234&WIDTH=1234\r
- // | 8 | 4 | 7 | 4 |\r
- //\r
- Length += (((BufferEnd - Buffer) / (sizeof (UINT16) + sizeof (UINT16))) * (8 + 4 + 7 + 4));\r
-\r
- //\r
- // Allocate buffer for the entire <ConfigRequest>\r
- //\r
- ConfigRequest = AllocateZeroPool (Length * sizeof (CHAR16));\r
- if (ConfigRequest == NULL) {\r
- goto Exit;\r
- }\r
- String = ConfigRequest;\r
-\r
- //\r
- // Start with <ConfigHdr>\r
- //\r
- StrCpy (String, ConfigHdr);\r
- String += StrLen (String);\r
-\r
- //\r
- // Loop through all the Offset/Width pairs and append them to ConfigRequest\r
- //\r
- while (Buffer < BufferEnd) {\r
- //\r
- // Append &OFFSET=XXXX&WIDTH=YYYY\r
- //\r
- OffsetValue = ReadUnaligned16 ((UINT16 *)Buffer);\r
- WidthValue = ReadUnaligned16 ((UINT16 *)(Buffer + sizeof (UINT16)));\r
- UnicodeSPrint (\r
- String, \r
- (8 + 4 + 7 + 4) * sizeof (CHAR16), \r
- L"&OFFSET=%04X&WIDTH=%04X", \r
- OffsetValue, \r
- WidthValue\r
- );\r
-\r
- String += StrLen (String);\r
- Buffer += (sizeof (UINT16) + sizeof (UINT16));\r
- }\r
-\r
- //\r
- // Get the <ConfigResp>\r
- //\r
- ConfigResp = InternalHiiBlockToConfig (ConfigRequest, BufferStorage, BufferStorageSize);\r
- if (ConfigResp == NULL) {\r
- goto Exit;\r
- }\r
-\r
- //\r
- // Compute the length of the entire response starting with <ConfigResp> and a \r
- // Null-terminator\r
- //\r
- Length = StrLen (ConfigResp) + 1;\r
-\r
- //\r
- // Add the length associated with each pair of variable argument parameters\r
- //\r
- VA_START (Args, BlockNameArray);\r
- while (TRUE) {\r
- AltCfgId = VA_ARG (Args, UINTN);\r
- Buffer = VA_ARG (Args, UINT8 *);\r
- if (Buffer == NULL) {\r
- break;\r
- }\r
-\r
- //\r
- // Add length for "&<ConfigHdr>&ALTCFG=XXXX"\r
- // |1| StrLen (ConfigHdr) | 8 | 4 |\r
- //\r
- Length += (1 + StrLen (ConfigHdr) + 8 + 4);\r
-\r
- BufferEnd = Buffer + ReadUnaligned32 ((UINT32 *)Buffer);\r
- Buffer += sizeof (UINT32);\r
- while (Buffer < BufferEnd) {\r
- //\r
- // Extract Width field\r
- //\r
- Width = ReadUnaligned16 ((UINT16 *)(Buffer + sizeof (UINT16)));\r
-\r
- //\r
- // Add length for "&OFFSET=XXXX&WIDTH=YYYY&VALUE=zzzzzzzzzzzz"\r
- // | 8 | 4 | 7 | 4 | 7 | Width * 2 |\r
- //\r
- Length += (8 + 4 + 7 + 4 + 7 + Width * 2);\r
-\r
- //\r
- // Update Buffer to the next record\r
- //\r
- Buffer += (sizeof (UINT16) + sizeof (UINT16) + Width);\r
- }\r
- }\r
- VA_END (Args);\r
-\r
- //\r
- // Allocate a buffer for the entire response\r
- //\r
- ConfigAltResp = AllocateZeroPool (Length * sizeof (CHAR16));\r
- if (ConfigAltResp == NULL) {\r
- goto Exit;\r
- }\r
- String = ConfigAltResp;\r
-\r
- //\r
- // Add <ConfigResp>\r
- //\r
- StrCpy (String, ConfigResp);\r
- String += StrLen (String);\r
-\r
- //\r
- // Add <AltResp> for each pair of variable argument parameters\r
- //\r
- VA_START (Args, BlockNameArray);\r
- while (TRUE) {\r
- AltCfgId = VA_ARG (Args, UINTN);\r
- Buffer = VA_ARG (Args, UINT8 *);\r
- if (Buffer == NULL) {\r
- break;\r
- }\r
-\r
- //\r
- // Add <AltConfigHdr> of the form "&<ConfigHdr>&ALTCFG=XXXX"\r
- // |1| StrLen (ConfigHdr) | 8 | 4 |\r
- //\r
- UnicodeSPrint (\r
- String, \r
- (1 + StrLen (ConfigHdr) + 8 + 4) * sizeof (CHAR16), \r
- L"&%s&ALTCFG=%04X", \r
- ConfigHdr, \r
- AltCfgId\r
- );\r
- String += StrLen (String);\r
-\r
- //\r
- // Add <ConfigBody> ::= <ConfigElement>*\r
- //\r
- BufferEnd = Buffer + ReadUnaligned32 ((UINT32 *)Buffer);\r
- Buffer += sizeof (UINT32);\r
- while (Buffer < BufferEnd) {\r
- //\r
- // Extract Width field\r
- //\r
- Width = ReadUnaligned16 ((UINT16 *)(Buffer + sizeof (UINT16)));\r
-\r
- //\r
- // Add <BlockConfig>\r
- //\r
- UnicodeSPrint (\r
- String, \r
- (8 + 4 + 7 + 4 + 7 + Width * 2) * sizeof (CHAR16),\r
- L"&OFFSET=%04X&WIDTH=%04X&VALUE=", \r
- ReadUnaligned16 ((UINT16 *)Buffer), \r
- Width\r
- );\r
- String += StrLen (String);\r
-\r
- //\r
- // Update Buffer to point to the value in the current record\r
- //\r
- Buffer += (sizeof (UINT16) + sizeof (UINT16));\r
-\r
- //\r
- // Convert Value to a hex string in "%x" format\r
- // NOTE: This is in the opposite byte that GUID and PATH use\r
- //\r
- for (; Width > 0; Width--) {\r
- String += UnicodeValueToString (String, PREFIX_ZERO | RADIX_HEX, Buffer[Width - 1], 2);\r
- }\r
- //\r
- // Update Buffer to the next record\r
- //\r
- Buffer += Width;\r
- }\r
- }\r
- VA_END (Args);\r
-\r
- //\r
- // Convert all hex digits in range [A-F] in the configuration header to [a-f]\r
- //\r
- return InternalHiiLowerConfigString (ConfigAltResp);\r
-\r
-Exit:\r
- if (ConfigHdr != NULL) {\r
- FreePool (ConfigHdr);\r
- }\r
- if (ConfigRequest != NULL) {\r
- FreePool (ConfigRequest);\r
- }\r
- if (ConfigResp != NULL) {\r
- FreePool (ConfigResp);\r
- }\r
-\r
- return NULL;\r
-}\r
-\r
/**\r
Determines if two values in config strings match.\r
\r
\r
return Status; \r
}\r
-\r
-/**\r
- Configure the buffer accrording to ConfigBody strings in the format of\r
- <Length:4 bytes>, <Offset: 2 bytes>, <Width:2 bytes>, <Data:n bytes>.\r
- This ConfigBody strings is generated by UEFI VfrCompiler for the default\r
- values in a Form Set. The name of the ConfigBody strings is VfrMyIfrNVDataDefault0000\r
- constructed following this rule: \r
- "Vfr" + varstore.name + "Default" + defaultstore.attributes.\r
- Check the generated C file in Output for details.\r
-\r
- @param Buffer The start address of buffer.\r
- @param BufferSize The size of buffer.\r
- @param Number The number of the strings.\r
- @param ... Variable argument list for default value in <AltResp> format \r
- generated by the tool.\r
-\r
- @retval EFI_BUFFER_TOO_SMALL the BufferSize is too small to operate.\r
- @retval EFI_INVALID_PARAMETER Buffer is NULL or BufferSize is 0.\r
- @retval EFI_SUCCESS Operation successful.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-HiiIfrLibExtractDefault(\r
- IN VOID *Buffer,\r
- IN UINTN *BufferSize,\r
- UINTN Number,\r
- ...\r
- )\r
-{\r
- VA_LIST Args;\r
- UINTN Index;\r
- UINT32 TotalLen;\r
- UINT8 *BufCfgArray;\r
- UINT8 *BufferPos;\r
- UINT16 Offset;\r
- UINT16 Width;\r
- UINT8 *Value;\r
-\r
- if ((Buffer == NULL) || (BufferSize == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Offset = 0;\r
- Width = 0;\r
- Value = NULL;\r
-\r
- VA_START (Args, Number);\r
- for (Index = 0; Index < Number; Index++) {\r
- BufCfgArray = (UINT8 *) VA_ARG (Args, VOID *);\r
- TotalLen = ReadUnaligned32 ((UINT32 *)BufCfgArray);\r
- BufferPos = BufCfgArray + sizeof (UINT32);\r
-\r
- while ((UINT32)(BufferPos - BufCfgArray) < TotalLen) {\r
- Offset = ReadUnaligned16 ((UINT16 *)BufferPos);\r
- BufferPos += sizeof (UINT16);\r
- Width = ReadUnaligned16 ((UINT16 *)BufferPos);\r
- BufferPos += sizeof (UINT16);\r
- Value = BufferPos;\r
- BufferPos += Width;\r
-\r
- if ((UINTN)(Offset + Width) > *BufferSize) {\r
- return EFI_BUFFER_TOO_SMALL;\r
- }\r
-\r
- CopyMem ((UINT8 *)Buffer + Offset, Value, Width);\r
- }\r
- }\r
- VA_END (Args);\r
-\r
- *BufferSize = (UINTN)Offset;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
projects / mirror_edk2.git / blobdiff