X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdeModulePkg%2FLibrary%2FUefiHiiLib%2FHiiLib.c;h=384bab4ed6f3d80bb83b9e683c62c1200d008e6b;hb=3e3f86e0b8ce62f6f41f0b81c4876bcc23cc49f9;hp=83e33d2a6ee67b7501df037fe0a83ab93dba2a27;hpb=fa7b3168fdfc8744f658a5ba5c4e433fc0ae7c82;p=mirror_edk2.git diff --git a/MdeModulePkg/Library/UefiHiiLib/HiiLib.c b/MdeModulePkg/Library/UefiHiiLib/HiiLib.c index 83e33d2a6e..384bab4ed6 100644 --- a/MdeModulePkg/Library/UefiHiiLib/HiiLib.c +++ b/MdeModulePkg/Library/UefiHiiLib/HiiLib.c @@ -14,42 +14,15 @@ #include "InternalHiiLib.h" -CONST EFI_HII_DATABASE_PROTOCOL *mHiiDatabaseProt = NULL; -CONST EFI_HII_STRING_PROTOCOL *mHiiStringProt = NULL; - -/** - This function locate Hii relative protocols for later usage. - - The constructor function caches the protocol pointer of HII Database Protocol - and Hii String Protocol. - - It will ASSERT() if either of the protocol can't be located. - - @param ImageHandle The firmware allocated handle for the EFI image. - @param SystemTable A pointer to the EFI System Table. - - @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS. - -**/ -EFI_STATUS -EFIAPI -HiiLibConstructor ( - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - ) -{ - EFI_STATUS Status; - - Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **) &mHiiDatabaseProt); - ASSERT_EFI_ERROR (Status); - - Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &mHiiStringProt); - ASSERT_EFI_ERROR (Status); - - return EFI_SUCCESS; -} - +// +// Template +// +GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR16 mConfigHdrTemplate[] = L"GUID=00000000000000000000000000000000&NAME=0000&PATH=00"; +// +// Form Browser2 Protocol +// +EFI_FORM_BROWSER2_PROTOCOL *mUefiFormBrowser2 = NULL; /** This funciton build the package list based on the package number, @@ -222,7 +195,7 @@ HiiLibAddPackages ( VA_START (Args, HiiHandle); PackageListHeader = InternalHiiLibPreparePackages (NumberOfPackages, GuidId, Args); - Status = mHiiDatabaseProt->NewPackageList (mHiiDatabaseProt, PackageListHeader, DriverHandle, HiiHandle); + Status = gHiiDatabase->NewPackageList (gHiiDatabase, PackageListHeader, DriverHandle, HiiHandle); if (HiiHandle != NULL) { if (EFI_ERROR (Status)) { *HiiHandle = NULL; @@ -254,7 +227,7 @@ HiiLibRemovePackages ( EFI_STATUS Status; ASSERT (IsHiiHandleRegistered (HiiHandle)); - Status = mHiiDatabaseProt->RemovePackageList (mHiiDatabaseProt, HiiHandle); + Status = gHiiDatabase->RemovePackageList (gHiiDatabase, HiiHandle); ASSERT_EFI_ERROR (Status); } @@ -292,8 +265,8 @@ HiiLibGetHiiHandles ( // // Try to find the actual buffer size for HiiHandle Buffer. // - Status = mHiiDatabaseProt->ListPackageLists ( - mHiiDatabaseProt, + Status = gHiiDatabase->ListPackageLists ( + gHiiDatabase, EFI_HII_PACKAGE_TYPE_ALL, NULL, HandleBufferLength, @@ -303,8 +276,8 @@ HiiLibGetHiiHandles ( if (Status == EFI_BUFFER_TOO_SMALL) { *HiiHandleBuffer = AllocateZeroPool (*HandleBufferLength); ASSERT (*HiiHandleBuffer != NULL); - Status = mHiiDatabaseProt->ListPackageLists ( - mHiiDatabaseProt, + Status = gHiiDatabase->ListPackageLists ( + gHiiDatabase, EFI_HII_PACKAGE_TYPE_ALL, NULL, HandleBufferLength, @@ -352,14 +325,14 @@ HiiLibExtractGuidFromHiiHandle ( BufferSize = 0; HiiPackageList = NULL; - Status = mHiiDatabaseProt->ExportPackageLists (mHiiDatabaseProt, Handle, &BufferSize, HiiPackageList); + Status = gHiiDatabase->ExportPackageLists (gHiiDatabase, Handle, &BufferSize, HiiPackageList); ASSERT (Status != EFI_NOT_FOUND); if (Status == EFI_BUFFER_TOO_SMALL) { HiiPackageList = AllocatePool (BufferSize); ASSERT (HiiPackageList != NULL); - Status = mHiiDatabaseProt->ExportPackageLists (mHiiDatabaseProt, Handle, &BufferSize, HiiPackageList); + Status = gHiiDatabase->ExportPackageLists (gHiiDatabase, Handle, &BufferSize, HiiPackageList); } if (EFI_ERROR (Status)) { FreePool (HiiPackageList); @@ -453,8 +426,8 @@ HiiLibDevicePathToHiiHandle ( BufferSize = 0x1000; HiiHandles = AllocatePool (BufferSize); ASSERT (HiiHandles != NULL); - Status = mHiiDatabaseProt->ListPackageLists ( - mHiiDatabaseProt, + Status = gHiiDatabase->ListPackageLists ( + gHiiDatabase, EFI_HII_PACKAGE_TYPE_ALL, NULL, &BufferSize, @@ -465,8 +438,8 @@ HiiLibDevicePathToHiiHandle ( HiiHandles = AllocatePool (BufferSize); ASSERT (HiiHandles != NULL); - Status = mHiiDatabaseProt->ListPackageLists ( - mHiiDatabaseProt, + Status = gHiiDatabase->ListPackageLists ( + gHiiDatabase, EFI_HII_PACKAGE_TYPE_ALL, NULL, &BufferSize, @@ -485,8 +458,8 @@ HiiLibDevicePathToHiiHandle ( HiiHandle = NULL; HandleCount = BufferSize / sizeof (EFI_HII_HANDLE); for (Index = 0; Index < HandleCount; Index++) { - Status = mHiiDatabaseProt->GetPackageListHandle ( - mHiiDatabaseProt, + Status = gHiiDatabase->GetPackageListHandle ( + gHiiDatabase, HiiHandles[Index], &Handle ); @@ -539,8 +512,8 @@ HiiLibExportPackageLists ( Size = 0; PackageListHdr = NULL; - Status = mHiiDatabaseProt->ExportPackageLists ( - mHiiDatabaseProt, + Status = gHiiDatabase->ExportPackageLists ( + gHiiDatabase, Handle, &Size, PackageListHdr @@ -553,8 +526,8 @@ HiiLibExportPackageLists ( if (PackageListHeader == NULL) { return EFI_OUT_OF_RESOURCES; } else { - Status = mHiiDatabaseProt->ExportPackageLists ( - mHiiDatabaseProt, + Status = gHiiDatabase->ExportPackageLists ( + gHiiDatabase, Handle, &Size, PackageListHdr @@ -632,8 +605,8 @@ HiiLibListPackageLists ( ASSERT (PackageGuid == NULL); } - Status = mHiiDatabaseProt->ListPackageLists ( - mHiiDatabaseProt, + Status = gHiiDatabase->ListPackageLists ( + gHiiDatabase, PackageType, PackageGuid, HandleBufferLength, @@ -653,8 +626,8 @@ HiiLibListPackageLists ( return EFI_OUT_OF_RESOURCES; } - return mHiiDatabaseProt->ListPackageLists ( - mHiiDatabaseProt, + return gHiiDatabase->ListPackageLists ( + gHiiDatabase, PackageType, PackageGuid, HandleBufferLength, @@ -685,8 +658,8 @@ IsHiiHandleRegistered ( HiiPackageList = NULL; BufferSize = 0; - Status = mHiiDatabaseProt->ExportPackageLists ( - mHiiDatabaseProt, + Status = gHiiDatabase->ExportPackageLists ( + gHiiDatabase, HiiHandle, &BufferSize, HiiPackageList @@ -695,3 +668,2251 @@ IsHiiHandleRegistered ( return (BOOLEAN) (Status == EFI_BUFFER_TOO_SMALL); } + +/** + Converts all hex dtring characters in range ['A'..'F'] to ['a'..'f'] for + hex digits that appear between a '=' and a '&' in a config string. + + If String is NULL, then ASSERT(). + + @param[in] String Pointer to a Null-terminated Unicode string. + + @return Pointer to the Null-terminated Unicode result string. + +**/ +EFI_STRING +EFIAPI +InternalHiiLowerConfigString ( + IN EFI_STRING ConfigString + ) +{ + EFI_STRING String; + BOOLEAN Lower; + + ASSERT (ConfigString != NULL); + + // + // Convert all hex digits in range [A-F] in the configuration header to [a-f] + // + for (String = ConfigString, Lower = FALSE; *String != L'\0'; String++) { + if (*String == L'=') { + Lower = TRUE; + } else if (*String == L'&') { + Lower = FALSE; + } else if (Lower && *String >= L'A' && *String <= L'F') { + *String = (CHAR16) (*String - L'A' + L'a'); + } + } + + return ConfigString; +} + +/** + Uses the BlockToConfig() service of the Config Routing Protocol to + convert and a buffer to a + + If ConfigRequest is NULL, then ASSERT(). + If Block is NULL, then ASSERT(). + + @param[in] ConfigRequest Pointer to a Null-terminated Unicode string. + @param[in] Block Pointer to a block of data. + @param[in] BlockSize The zie, in bytes, of Block. + + @retval NULL The string could not be generated. + @retval Other Pointer to the Null-terminated Unicode string. + +**/ +EFI_STRING +EFIAPI +InternalHiiBlockToConfig ( + IN CONST EFI_STRING ConfigRequest, + IN CONST UINT8 *Block, + IN UINTN BlockSize + ) +{ + EFI_STATUS Status; + EFI_STRING ConfigResp; + CHAR16 *Progress; + + ASSERT (ConfigRequest != NULL); + ASSERT (Block != NULL); + + // + // Convert to + // + Status = gHiiConfigRouting->BlockToConfig ( + gHiiConfigRouting, + ConfigRequest, + Block, + BlockSize, + &ConfigResp, + &Progress + ); + if (EFI_ERROR (Status)) { + return NULL; + } + return ConfigResp; +} + +/** + Uses the ConfigToBlock() service of the Config Routing Protocol to + convert to a block. The block is allocated using + AllocatePool(). The caller is responsible for freeing the block + using FreePool(). + + If ConfigResp is NULL, then ASSERT(). + + @param[in] ConfigResp Pointer to a Null-terminated Unicode string. + @param[in] BufferSize Length in bytes of buffer to hold retrived data. + + @retval NULL The block could not be generated.. + @retval Other Pointer to the allocated block. + +**/ +UINT8 * +EFIAPI +InternalHiiConfigToBlock ( + IN EFI_STRING ConfigResp, + IN UINTN BlockSize + ) +{ + EFI_STATUS Status; + CHAR16 *Progress; + UINT8 *Block; + + ASSERT (ConfigResp != NULL); + + // + // Allocate a buffer to hold the conversion + // + Block = AllocateZeroPool (BlockSize); + if (Block == NULL) { + return NULL; + } + + // + // Convert to a buffer + // + Status = gHiiConfigRouting->ConfigToBlock ( + gHiiConfigRouting, + ConfigResp, + Block, + &BlockSize, + &Progress + ); + if (EFI_ERROR (Status)) { + FreePool (Block); + return NULL; + } + + // + // Return converted buffer + // + return Block; +} + +/** + Uses the BrowserCallback() service of the Form Browser Protocol to retrieve + or set uncommitted data. If sata i being retrieved, then the buffer is + allocated using AllocatePool(). The caller is then responsible for freeing + the buffer using FreePool(). + + @param[in] VariableName Pointer to a Null-terminated Unicode string. This + is an optional parameter that may be NULL. + @param[in] VariableGuid Pointer to an EFI_GUID structure. This is an optional + parameter that may be NULL. + @param[in] SetResultsData If not NULL, then this parameter specified the buffer + of uncommited data to set. If this parameter is NULL, + then the caller is requesting to get the uncommited data + from the Form Browser. + + @retval NULL The uncommitted data could not be retrieved. + @retval Other A pointer to a buffer containing the uncommitted data. + +**/ +EFI_STRING +EFIAPI +InternalHiiBrowserCallback ( + IN CONST EFI_GUID *VariableGuid, OPTIONAL + IN CONST CHAR16 *VariableName, OPTIONAL + IN CONST EFI_STRING SetResultsData OPTIONAL + ) +{ + EFI_STATUS Status; + UINTN ResultsDataSize; + EFI_STRING ResultsData; + CHAR16 TempResultsData; + + // + // Locate protocols + // + if (mUefiFormBrowser2 == NULL) { + Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **) &mUefiFormBrowser2); + if (EFI_ERROR (Status) || mUefiFormBrowser2 == NULL) { + return NULL; + } + } + + ResultsDataSize = 0; + + if (SetResultsData != NULL) { + // + // Request to to set data in the uncommitted browser state information + // + ResultsData = SetResultsData; + } else { + // + // Retrieve the length of the buffer required ResultsData from the Browser Callback + // + Status = mUefiFormBrowser2->BrowserCallback ( + mUefiFormBrowser2, + &ResultsDataSize, + &TempResultsData, + TRUE, + VariableGuid, + VariableName + ); + if (Status != EFI_BUFFER_TOO_SMALL) { + return NULL; + } + + // + // Allocate the ResultsData buffer + // + ResultsData = AllocateZeroPool (ResultsDataSize); + if (ResultsData == NULL) { + return NULL; + } + } + + // + // Retrieve or set the ResultsData from the Browser Callback + // + Status = mUefiFormBrowser2->BrowserCallback ( + mUefiFormBrowser2, + &ResultsDataSize, + ResultsData, + (BOOLEAN)(SetResultsData == NULL), + VariableGuid, + VariableName + ); + if (EFI_ERROR (Status)) { + return NULL; + } + + return ResultsData; +} + +/** + Allocates and returns a Null-terminated Unicode string using routing + information that includes a GUID, an optional Unicode string name, and a device + path. The string returned is allocated with AllocatePool(). The caller is + responsible for freeing the allocated string with FreePool(). + + The format of a is as follows: + + GUID=32&NAME=NameLength&PATH=DevicePathSize + + @param[in] Guid Pointer to an EFI_GUID that is the routing information + GUID. Each of the 16 bytes in Guid is converted to + a 2 Unicode character hexidecimal string. This is + an optional parameter that may be NULL. + @param[in] Name Pointer to a Null-terminated Unicode string that is + the routing information NAME. This is an optional + parameter that may be NULL. Each 16-bit Unicode + character in Name is converted to a 4 character Unicode + hexidecimal string. + @param[in] DriverHandle The driver handle which supports a Device Path Protocol + that is the routing information PATH. Each byte of + the Device Path associated with DriverHandle is converted + to a 2 Unicode character hexidecimal string. + + @retval NULL DriverHandle does not support the Device Path Protocol. + @retval Other A pointer to the Null-terminate Unicode string + +**/ +EFI_STRING +EFIAPI +HiiConstructConfigHdr ( + IN CONST EFI_GUID *Guid, OPTIONAL + IN CONST CHAR16 *Name, OPTIONAL + IN EFI_HANDLE DriverHandle + ) +{ + UINTN NameLength; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + UINTN DevicePathSize; + CHAR16 *String; + CHAR16 *ReturnString; + UINTN Index; + UINT8 *Buffer; + + // + // Compute the length of Name in Unicode characters. + // If Name is NULL, then the length is 0. + // + NameLength = 0; + if (Name != NULL) { + NameLength = StrLen (Name); + } + + DevicePath = NULL; + DevicePathSize = 0; + // + // Retrieve DevicePath Protocol associated with DriverHandle + // + if (DriverHandle != NULL) { + DevicePath = DevicePathFromHandle (DriverHandle); + if (DevicePath == NULL) { + return NULL; + } + // + // Compute the size of the device path in bytes + // + DevicePathSize = GetDevicePathSize (DevicePath); + } + + // + // GUID=32&NAME=NameLength&PATH=DevicePathSize + // | 5 | sizeof (EFI_GUID) * 2 | 6 | NameStrLen*4 | 6 | DevicePathSize * 2 | 1 | + // + String = AllocateZeroPool ((5 + sizeof (EFI_GUID) * 2 + 6 + NameLength * 4 + 6 + DevicePathSize * 2 + 1) * sizeof (CHAR16)); + if (String == NULL) { + return NULL; + } + + // + // Start with L"GUID=" + // + ReturnString = StrCpy (String, L"GUID="); + String += StrLen (String); + + if (Guid != NULL) { + // + // Append Guid converted to 32 + // + for (Index = 0, Buffer = (UINT8 *)Guid; Index < sizeof (EFI_GUID); Index++) { + String += UnicodeValueToString (String, PREFIX_ZERO | RADIX_HEX, *(Buffer++), 2); + } + } + + // + // Append L"&NAME=" + // + StrCpy (String, L"&NAME="); + String += StrLen (String); + + if (Name != NULL) { + // + // Append Name converted to NameLength + // + for (; *Name != L'\0'; Name++) { + String += UnicodeValueToString (String, PREFIX_ZERO | RADIX_HEX, *Name, 4); + } + } + + // + // Append L"&PATH=" + // + StrCpy (String, L"&PATH="); + String += StrLen (String); + + // + // Append the device path associated with DriverHandle converted to DevicePathSize + // + for (Index = 0, Buffer = (UINT8 *)DevicePath; Index < DevicePathSize; Index++) { + String += UnicodeValueToString (String, PREFIX_ZERO | RADIX_HEX, *(Buffer++), 2); + } + + // + // Null terminate the Unicode string + // + *String = L'\0'; + + // + // Convert all hex digits in range [A-F] in the configuration header to [a-f] + // + return InternalHiiLowerConfigString (ReturnString); +} + +/** + Allocates and returns a Null-terminated Unicode string. + + If Guid is NULL, then ASSERT(). + If Name is NULL, then ASSERT(). + If BlockNameArray is NULL, then ASSERT(). + + @param[in] Guid GUID of the buffer storage. + @param[in] Name Name of the buffer storage. + @param[in] DriverHandle The DriverHandle that support a Device Path + Protocol. + @param[in] BufferStorage Content of the buffer storage. + @param[in] BufferStorageSize Length in bytes of the buffer storage. + @param[in] BlockNameArray Array generated by VFR compiler. This array + contains a UINT32 value that is the length + of BlockNameArray in bytes, followed by pairs + of 16-bit values that are the offset and length + values used to contruct a string. + @param[in] ... A variable argument list that contains pairs of 16-bit + ALTCFG identifiers and pointers to DefaultValueArrays. + The variable argument list is terminated by a NULL + DefaultValueArray pointer. A DefaultValueArray + contains a UINT32 value that is the length, in bytes, + of the DefaultValueArray. The UINT32 length value + is followed by a series of records that contain + a 16-bit WIDTH value followed by a byte array with + WIDTH entries. The records must be parsed from + beginning to end until the UINT32 length limit + is reached. + + @retval NULL There are not enough resources to process the request. + @retval NULL A could not be retrieved from the Config + Routing Protocol. + @retval Other A pointer to the Null-terminate Unicode + string. + +**/ +EFI_STRING +EFIAPI +HiiConstructConfigAltResp ( + IN CONST EFI_GUID *Guid, + IN CONST CHAR16 *Name, + IN EFI_HANDLE DriverHandle, + IN CONST VOID *BufferStorage, + IN UINTN BufferStorageSize, + IN CONST VOID *BlockNameArray, + ... + ) +{ + UINTN Length; + CHAR16 *String; + CHAR16 *ConfigHdr; + UINT8 *Buffer; + UINT8 *BufferEnd; + CHAR16 *ConfigRequest; + EFI_STRING ConfigResp; + EFI_STRING ConfigAltResp; + VA_LIST Args; + UINTN AltCfgId; + UINT16 Width; + UINT16 OffsetValue; + UINT16 WidthValue; + + ASSERT (Guid != NULL); + ASSERT (Name != NULL); + ASSERT (BlockNameArray != NULL); + + // + // Initialize local variables + // + ConfigHdr = NULL; + ConfigRequest = NULL; + ConfigResp = NULL; + + // + // Construct : "GUID=...&NAME=...&PATH=..." + // + ConfigHdr = HiiConstructConfigHdr (Guid, Name, DriverHandle); + if (ConfigHdr == NULL) { + goto Exit; + } + + // + // Compute the length of the entire request starting with and a + // Null-terminator + // + Length = StrLen (ConfigHdr) + 1; + + // + // Determine the size Offset/Width pairs + // + Buffer = (UINT8 *)BlockNameArray; + BufferEnd = Buffer + ReadUnaligned32 ((UINT32 *)Buffer); + Buffer += sizeof (UINT32); + + // + // Add length that is composed of one or more Offset/Width pairs + // + // ::= &OFFSET=1234&WIDTH=1234 + // | 8 | 4 | 7 | 4 | + // + Length += (((BufferEnd - Buffer) / (sizeof (UINT16) + sizeof (UINT16))) * (8 + 4 + 7 + 4)); + + // + // Allocate buffer for the entire + // + ConfigRequest = AllocateZeroPool (Length * sizeof (CHAR16)); + if (ConfigRequest == NULL) { + goto Exit; + } + String = ConfigRequest; + + // + // Start with + // + StrCpy (String, ConfigHdr); + String += StrLen (String); + + // + // Loop through all the Offset/Width pairs and append them to ConfigRequest + // + while (Buffer < BufferEnd) { + // + // Append &OFFSET=XXXX&WIDTH=YYYY + // + OffsetValue = ReadUnaligned16 ((UINT16 *)Buffer); + WidthValue = ReadUnaligned16 ((UINT16 *)(Buffer + sizeof (UINT16))); + UnicodeSPrint ( + String, + (8 + 4 + 7 + 4) * sizeof (CHAR16), + L"&OFFSET=%04X&WIDTH=%04X", + OffsetValue, + WidthValue + ); + + String += StrLen (String); + Buffer += (sizeof (UINT16) + sizeof (UINT16)); + } + + // + // Get the + // + ConfigResp = InternalHiiBlockToConfig (ConfigRequest, BufferStorage, BufferStorageSize); + if (ConfigResp == NULL) { + goto Exit; + } + + // + // Compute the length of the entire response starting with and a + // Null-terminator + // + Length = StrLen (ConfigResp) + 1; + + // + // Add the length associated with each pair of variable argument parameters + // + VA_START (Args, BlockNameArray); + while (TRUE) { + AltCfgId = VA_ARG (Args, UINT16); + Buffer = VA_ARG (Args, UINT8 *); + if (Buffer == NULL) { + break; + } + + // + // Add length for "&&ALTCFG=XXXX" + // |1| StrLen (ConfigHdr) | 8 | 4 | + // + Length += (1 + StrLen (ConfigHdr) + 8 + 4); + + BufferEnd = Buffer + ReadUnaligned32 ((UINT32 *)Buffer); + Buffer += sizeof (UINT32); + while (Buffer < BufferEnd) { + // + // Extract Width field + // + Width = ReadUnaligned16 ((UINT16 *)(Buffer + sizeof (UINT16))); + + // + // Add length for "&OFFSET=XXXX&WIDTH=YYYY&VALUE=zzzzzzzzzzzz" + // | 8 | 4 | 7 | 4 | 7 | Width * 2 | + // + Length += (8 + 4 + 7 + 4 + 7 + Width * 2); + + // + // Update Buffer to the next record + // + Buffer += (sizeof (UINT16) + sizeof (UINT16) + Width); + } + } + VA_END (Args); + + // + // Allocate a buffer for the entire response + // + ConfigAltResp = AllocateZeroPool (Length * sizeof (CHAR16)); + if (ConfigAltResp == NULL) { + goto Exit; + } + String = ConfigAltResp; + + // + // Add + // + StrCpy (String, ConfigResp); + String += StrLen (String); + + // + // Add for each pair of variable argument parameters + // + VA_START (Args, BlockNameArray); + while (TRUE) { + AltCfgId = VA_ARG (Args, UINT16); + Buffer = VA_ARG (Args, UINT8 *); + if (Buffer == NULL) { + break; + } + + // + // Add of the form "&&ALTCFG=XXXX" + // |1| StrLen (ConfigHdr) | 8 | 4 | + // + UnicodeSPrint ( + String, + (1 + StrLen (ConfigHdr) + 8 + 4) * sizeof (CHAR16), + L"&%s&ALTCFG=%04X", + ConfigHdr, + AltCfgId + ); + String += StrLen (String); + + // + // Add ::= * + // + BufferEnd = Buffer + ReadUnaligned32 ((UINT32 *)Buffer); + Buffer += sizeof (UINT32); + while (Buffer < BufferEnd) { + // + // Extract Width field + // + Width = ReadUnaligned16 ((UINT16 *)(Buffer + sizeof (UINT16))); + + // + // Add + // + UnicodeSPrint ( + String, + (8 + 4 + 7 + 4 + 7 + Width * 2) * sizeof (CHAR16), + L"&OFFSET=%04X&WIDTH=%04X&VALUE=", + ReadUnaligned16 ((UINT16 *)Buffer), + Width + ); + String += StrLen (String); + + // + // Update Buffer to point to the value in the current record + // + Buffer += (sizeof (UINT16) + sizeof (UINT16)); + + // + // Convert Value to a hex string in "%x" format + // NOTE: This is in the opposite byte that GUID and PATH use + // + for (; Width > 0; Width--) { + String += UnicodeValueToString (String, PREFIX_ZERO | RADIX_HEX, Buffer[Width - 1], 2); + } + // + // Update Buffer to the next record + // + Buffer += Width; + } + } + VA_END (Args); + + // + // Convert all hex digits in range [A-F] in the configuration header to [a-f] + // + return InternalHiiLowerConfigString (ConfigAltResp); + +Exit: + if (ConfigHdr != NULL) { + FreePool (ConfigHdr); + } + if (ConfigRequest != NULL) { + FreePool (ConfigRequest); + } + if (ConfigResp != NULL) { + FreePool (ConfigResp); + } + + return NULL; +} + +/** + Determines if two values in config strings match. + + Compares the substring between StartSearchString and StopSearchString in + FirstString to the substring between StartSearchString and StopSearchString + in SecondString. If the two substrings match, then TRUE is returned. If the + two substrings do not match, then FALSE is returned. + + If FirstString is NULL, then ASSERT(). + If SecondString is NULL, then ASSERT(). + If StartSearchString is NULL, then ASSERT(). + If StopSearchString is NULL, then ASSERT(). + + @param FirstString Pointer to the first Null-terminated Unicode string. + @param SecondString Pointer to the second Null-terminated Unicode string. + @param StartSearchString Pointer to the Null-terminated Unicode string that + marks the start of the value string to compare. + @param StopSearchString Pointer to the Null-terminated Unicode string that + marks the end of the vakue string to compare. + + @retval FALSE StartSearchString is not present in FirstString. + @retval FALSE StartSearchString is not present in SecondString. + @retval FALSE StopSearchString is not present in FirstString. + @retval FALSE StopSearchString is not present in SecondString. + @retval FALSE The length of the substring in FirstString is not the + same length as the substring in SecondString. + @retval FALSE The value string in FirstString does not matche the + value string in SecondString. + @retval TRUE The value string in FirstString matches the value + string in SecondString. + +**/ +BOOLEAN +EFIAPI +InternalHiiCompareSubString ( + IN CHAR16 *FirstString, + IN CHAR16 *SecondString, + IN CHAR16 *StartSearchString, + IN CHAR16 *StopSearchString + ) +{ + CHAR16 *EndFirstString; + CHAR16 *EndSecondString; + + ASSERT (FirstString != NULL); + ASSERT (SecondString != NULL); + ASSERT (StartSearchString != NULL); + ASSERT (StopSearchString != NULL); + + FirstString = StrStr (FirstString, StartSearchString); + if (FirstString == NULL) { + return FALSE; + } + + SecondString = StrStr (SecondString, StartSearchString); + if (SecondString == NULL) { + return FALSE; + } + + EndFirstString = StrStr (FirstString, StopSearchString); + if (EndFirstString == NULL) { + return FALSE; + } + + EndSecondString = StrStr (SecondString, StopSearchString); + if (EndSecondString == NULL) { + return FALSE; + } + + if ((EndFirstString - FirstString) != (EndSecondString - SecondString)) { + return FALSE; + } + + return (BOOLEAN)(StrnCmp (FirstString, SecondString, EndFirstString - FirstString) == 0); +} + +/** + Determines if the routing data specified by GUID and NAME match a . + + If ConfigHdr is NULL, then ASSERT(). + + @param[in] ConfigHdr Either or . + @param[in] Guid GUID of the storage. + @param[in] Name NAME of the storage. + + @retval TRUE Routing information matches . + @retval FALSE Routing information does not match . + +**/ +BOOLEAN +EFIAPI +HiiIsConfigHdrMatch ( + IN CONST EFI_STRING ConfigHdr, + IN CONST EFI_GUID *Guid, OPTIONAL + IN CONST CHAR16 *Name OPTIONAL + ) +{ + EFI_STRING CompareConfigHdr; + BOOLEAN Result; + + ASSERT (ConfigHdr != NULL); + + // + // Use Guid and Name to generate a string + // + CompareConfigHdr = HiiConstructConfigHdr (Guid, Name, NULL); + if (CompareConfigHdr == NULL) { + return FALSE; + } + + Result = TRUE; + if (Guid != NULL) { + // + // Compare GUID value strings + // + Result = InternalHiiCompareSubString (ConfigHdr, CompareConfigHdr, L"GUID=", L"&NAME="); + } + + if (Result && Name != NULL) { + // + // Compare NAME value strings + // + Result = InternalHiiCompareSubString (ConfigHdr, CompareConfigHdr, L"&NAME=", L"&PATH="); + } + + // + // Free the string + // + FreePool (CompareConfigHdr); + + return Result; +} + +/** + Retrieves uncommited data from the Form Browser and converts it to a binary + buffer. The returned buffer is allocated using AllocatePool(). The caller + is responsible for freeing the returned buffer using FreePool(). + + @param[in] VariableName Pointer to a Null-terminated Unicode string. This + is an optional parameter that may be NULL. + @param[in] VariableGuid Pointer to an EFI_GUID structure. This is an optional + parameter that may be NULL. + @param[in] BufferSize Length in bytes of buffer to hold retrived data. + + @retval NULL The uncommitted data could not be retrieved. + @retval Other A pointer to a buffer containing the uncommitted data. + +**/ +UINT8 * +EFIAPI +HiiGetBrowserData ( + IN CONST EFI_GUID *VariableGuid, OPTIONAL + IN CONST CHAR16 *VariableName, OPTIONAL + IN UINTN BlockSize + ) +{ + EFI_STRING ResultsData; + UINTN Size; + EFI_STRING ConfigResp; + UINT8 *Block; + + // + // Retrieve the results data from the Browser Callback + // + ResultsData = InternalHiiBrowserCallback (VariableGuid, VariableName, NULL); + if (ResultsData == NULL) { + return NULL; + } + + // + // Construct mConfigHdrTemplate L'&' ResultsData L'\0' + // + Size = (StrLen (mConfigHdrTemplate) + 1) * sizeof (CHAR16); + Size = Size + (StrLen (ResultsData) + 1) * sizeof (CHAR16); + ConfigResp = AllocateZeroPool (Size); + UnicodeSPrint (ConfigResp, Size, L"%s&%s", mConfigHdrTemplate, ResultsData); + + // + // Free the allocated buffer + // + FreePool (ResultsData); + if (ConfigResp == NULL) { + return NULL; + } + + // + // Convert to a buffer + // + Block = InternalHiiConfigToBlock (ConfigResp, BlockSize); + FreePool (ConfigResp); + + return Block; +} + +/** + Updates uncommitted data in the Form Browser. + + If Buffer is NULL, then ASSERT(). + + @param[in] VariableName Pointer to a Null-terminated Unicode string. This + is an optional parameter that may be NULL. + @param[in] VariableGuid Pointer to an EFI_GUID structure. This is an optional + parameter that may be NULL. + @param[in] BufferSize Length, in bytes, of Buffer. + @param[in] Buffer Buffer of data to commit. + @param[in] RequestElement An optional field to specify which part of the + buffer data will be send back to Browser. If NULL, + the whole buffer of data will be committed to + Browser. + ::= &OFFSET=&WIDTH=* + + @retval FALSE The uncommitted data could not be updated. + @retval TRUE The uncommitted data was updated. + +**/ +BOOLEAN +EFIAPI +HiiSetBrowserData ( + IN CONST EFI_GUID *VariableGuid, OPTIONAL + IN CONST CHAR16 *VariableName, OPTIONAL + IN UINTN BufferSize, + IN CONST UINT8 *Buffer, + IN CONST CHAR16 *RequestElement OPTIONAL + ) +{ + UINTN Size; + EFI_STRING ConfigRequest; + EFI_STRING ConfigResp; + EFI_STRING ResultsData; + + ASSERT (Buffer != NULL); + + // + // Construct + // + if (RequestElement == NULL) { + // + // Allocate and fill a buffer large enough to hold the template + // followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator + // + Size = (StrLen (mConfigHdrTemplate) + 32 + 1) * sizeof (CHAR16); + ConfigRequest = AllocateZeroPool (Size); + UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", mConfigHdrTemplate, (UINT64)BufferSize); + } else { + // + // Allocate and fill a buffer large enough to hold the template + // followed by followed by a Null-terminator + // + Size = StrLen (mConfigHdrTemplate) * sizeof (CHAR16); + Size = Size + (StrLen (RequestElement) + 1) * sizeof (CHAR16); + ConfigRequest = AllocateZeroPool (Size); + UnicodeSPrint (ConfigRequest, Size, L"%s%s", mConfigHdrTemplate, RequestElement); + } + if (ConfigRequest == NULL) { + return FALSE; + } + + // + // Convert to + // + ConfigResp = InternalHiiBlockToConfig (ConfigRequest, Buffer, BufferSize); + FreePool (ConfigRequest); + if (ConfigResp == NULL) { + return FALSE; + } + + // + // Set data in the uncommitted browser state information + // + ResultsData = InternalHiiBrowserCallback (VariableGuid, VariableName, ConfigResp + StrLen(mConfigHdrTemplate) + 1); + FreePool (ConfigResp); + + return (BOOLEAN)(ResultsData != NULL); +} + +///////////////////////////////////////// +///////////////////////////////////////// +/// IFR Functions +///////////////////////////////////////// +///////////////////////////////////////// + +#define HII_LIB_OPCODE_ALLOCATION_SIZE 0x200 + +typedef struct { + UINT8 *Buffer; + UINTN BufferSize; + UINTN Position; +} HII_LIB_OPCODE_BUFFER; + +/// +/// Lookup table that converts EFI_IFR_TYPE_X enum values to a width in bytes +/// +GLOBAL_REMOVE_IF_UNREFERENCED CONST UINT8 mHiiDefaultTypeToWidth[] = { + 1, // EFI_IFR_TYPE_NUM_SIZE_8 + 2, // EFI_IFR_TYPE_NUM_SIZE_16 + 4, // EFI_IFR_TYPE_NUM_SIZE_32 + 8, // EFI_IFR_TYPE_NUM_SIZE_64 + 1, // EFI_IFR_TYPE_BOOLEAN + 3, // EFI_IFR_TYPE_TIME + 4, // EFI_IFR_TYPE_DATE + 2 // EFI_IFR_TYPE_STRING +}; + +/** + Allocates and returns a new OpCode Handle. OpCode Handles must be freed with + HiiFreeOpCodeHandle(). + + @retval NULL There are not enough resources to allocate a new OpCode Handle. + @retval Other A new OpCode handle. + +**/ +VOID * +EFIAPI +HiiAllocateOpCodeHandle ( + VOID + ) +{ + HII_LIB_OPCODE_BUFFER *OpCodeBuffer; + + OpCodeBuffer = (HII_LIB_OPCODE_BUFFER *)AllocatePool (sizeof (HII_LIB_OPCODE_BUFFER)); + if (OpCodeBuffer == NULL) { + return NULL; + } + OpCodeBuffer->Buffer = (UINT8 *)AllocatePool (HII_LIB_OPCODE_ALLOCATION_SIZE); + if (OpCodeBuffer->Buffer == NULL) { + FreePool (OpCodeBuffer); + return NULL; + } + OpCodeBuffer->BufferSize = HII_LIB_OPCODE_ALLOCATION_SIZE; + OpCodeBuffer->Position = 0; + return (VOID *)OpCodeBuffer; +} + +/** + Frees an OpCode Handle that was peviously allocated with HiiAllocateOpCodeHandle(). + When an OpCode Handle is freed, all of the opcodes associated with the OpCode + Handle are also freed. + + If OpCodeHandle is NULL, then ASSERT(). + +**/ +VOID +EFIAPI +HiiFreeOpCodeHandle ( + VOID *OpCodeHandle + ) +{ + HII_LIB_OPCODE_BUFFER *OpCodeBuffer; + + ASSERT (OpCodeHandle != NULL); + + OpCodeBuffer = (HII_LIB_OPCODE_BUFFER *)OpCodeHandle; + if (OpCodeBuffer->Buffer != NULL) { + FreePool (OpCodeBuffer->Buffer); + } + FreePool (OpCodeBuffer); +} + +UINTN +EFIAPI +InternalHiiOpCodeHandlePosition ( + IN VOID *OpCodeHandle + ) +{ + return ((HII_LIB_OPCODE_BUFFER *)OpCodeHandle)->Position; +} + +UINT8 * +EFIAPI +InternalHiiOpCodeHandleBuffer ( + IN VOID *OpCodeHandle + ) +{ + return ((HII_LIB_OPCODE_BUFFER *)OpCodeHandle)->Buffer; +} + +UINT8 * +EFIAPI +InternalHiiGrowOpCodeHandle ( + VOID *OpCodeHandle, + UINTN Size + ) +{ + HII_LIB_OPCODE_BUFFER *OpCodeBuffer; + UINT8 *Buffer; + + ASSERT (OpCodeHandle != NULL); + + OpCodeBuffer = (HII_LIB_OPCODE_BUFFER *)OpCodeHandle; + if (OpCodeBuffer->Position + Size > OpCodeBuffer->BufferSize) { + Buffer = ReallocatePool ( + OpCodeBuffer->BufferSize, + OpCodeBuffer->BufferSize + (Size + HII_LIB_OPCODE_ALLOCATION_SIZE), + OpCodeBuffer->Buffer + ); + if (Buffer == NULL) { + return NULL; + } + OpCodeBuffer->Buffer = Buffer; + OpCodeBuffer->BufferSize += (Size + HII_LIB_OPCODE_ALLOCATION_SIZE); + } + Buffer = OpCodeBuffer->Buffer + OpCodeBuffer->Position; + OpCodeBuffer->Position += Size; + return Buffer; +} + +UINT8 * +EFIAPI +InternalHiiCreateOpCodeExtended ( + IN VOID *OpCodeHandle, + IN VOID *OpCodeTemplate, + IN UINT8 OpCode, + IN UINTN OpCodeSize, + IN UINTN ExtensionSize, + IN UINT8 Scope + ) +{ + EFI_IFR_OP_HEADER *Header; + UINT8 *Buffer; + + ASSERT (OpCodeTemplate != NULL); + ASSERT ((OpCodeSize + ExtensionSize) <= 0x7F); + + Header = (EFI_IFR_OP_HEADER *)OpCodeTemplate; + Header->OpCode = OpCode; + Header->Scope = Scope; + Header->Length = (UINT8)(OpCodeSize + ExtensionSize); + Buffer = InternalHiiGrowOpCodeHandle (OpCodeHandle, Header->Length); + return (UINT8 *)CopyMem (Buffer, Header, OpCodeSize); +} + +UINT8 * +EFIAPI +InternalHiiCreateOpCode ( + IN VOID *OpCodeHandle, + IN VOID *OpCodeTemplate, + IN UINT8 OpCode, + IN UINTN OpCodeSize + ) +{ + return InternalHiiCreateOpCodeExtended (OpCodeHandle, OpCodeTemplate, OpCode, OpCodeSize, 0, 0); +} + +/** + Append raw opcodes to an OpCodeHandle. + + If OpCodeHandle is NULL, then ASSERT(). + If RawBuffer is NULL, then ASSERT(); + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] RawBuffer Buffer of opcodes to append. + @param[in] RawBufferSize The size, in bytes, of Buffer. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the appended opcodes. + +**/ +UINT8 * +EFIAPI +InternalHiiCreateRawOpCodes ( + IN VOID *OpCodeHandle, + IN UINT8 *RawBuffer, + IN UINTN RawBufferSize + ) +{ + UINT8 *Buffer; + + ASSERT (RawBuffer != NULL); + + Buffer = InternalHiiGrowOpCodeHandle (OpCodeHandle, RawBufferSize); + return (UINT8 *)CopyMem (Buffer, RawBuffer, RawBufferSize); +} + +/** + Append opcodes from one OpCode Handle to another OpCode handle. + + If OpCodeHandle is NULL, then ASSERT(). + If RawOpCodeHandle is NULL, then ASSERT(); + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] RawOpCodeHandle Handle to the buffer of opcodes. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the appended opcodes. + +**/ +UINT8 * +EFIAPI +InternalHiiAppendOpCodes ( + IN VOID *OpCodeHandle, + IN VOID *RawOpCodeHandle + ) +{ + HII_LIB_OPCODE_BUFFER *RawOpCodeBuffer; + + ASSERT (RawOpCodeHandle != NULL); + + RawOpCodeBuffer = (HII_LIB_OPCODE_BUFFER *)RawOpCodeHandle; + return InternalHiiCreateRawOpCodes (OpCodeHandle, RawOpCodeBuffer->Buffer, RawOpCodeBuffer->Position); +} + +/** + Create EFI_IFR_END_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateEndOpCode ( + IN VOID *OpCodeHandle + ) +{ + EFI_IFR_END OpCode; + + return InternalHiiCreateOpCode (OpCodeHandle, &OpCode, EFI_IFR_END_OP, sizeof (OpCode)); +} + +/** + Create EFI_IFR_ONE_OF_OPTION_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If Type is invalid, then ASSERT(). + If Flags is invalid, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] StringId StringId for the option + @param[in] Flags Flags for the option + @param[in] Type Type for the option + @param[in] Value Value for the option + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateOneOfOptionOpCode ( + IN VOID *OpCodeHandle, + IN UINT16 StringId, + IN UINT8 Flags, + IN UINT8 Type, + IN UINT64 Value + ) +{ + EFI_IFR_ONE_OF_OPTION OpCode; + + ASSERT (Type < EFI_IFR_TYPE_OTHER); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Option = StringId; + OpCode.Flags = (UINT8) (Flags & (EFI_IFR_OPTION_DEFAULT | EFI_IFR_OPTION_DEFAULT_MFG)); + OpCode.Type = Type; + CopyMem (&OpCode.Value, &Value, mHiiDefaultTypeToWidth[Type]); + + return InternalHiiCreateOpCode (OpCodeHandle, &OpCode, EFI_IFR_ONE_OF_OPTION_OP, sizeof (OpCode)); +} + +/** + Create EFI_IFR_DEFAULT_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If Type is invalid, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] DefaultId DefaultId for the default + @param[in] Type Type for the default + @param[in] Value Value for the default + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateDefaultOpCode ( + IN VOID *OpCodeHandle, + IN UINT16 DefaultId, + IN UINT8 Type, + IN UINT64 Value + ) +{ + EFI_IFR_DEFAULT OpCode; + + ASSERT (Type < EFI_IFR_TYPE_OTHER); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Type = Type; + OpCode.DefaultId = DefaultId; + CopyMem (&OpCode.Value, &Value, mHiiDefaultTypeToWidth[Type]); + + return InternalHiiCreateOpCode (OpCodeHandle, &OpCode, EFI_IFR_DEFAULT_OP, sizeof (OpCode)); +} + +/** + Create EFI_IFR_GUID opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If Guid is NULL, then ASSERT(). + If OpCodeSize < sizeof (EFI_IFR_GUID), then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] Guid Pointer to EFI_GUID of this guided opcode. + @param[in] GuidOpCode Pointer to an EFI_IFR_GUID opcode. This is an + optional parameter that may be NULL. If this + parameter is NULL, then the GUID extension + region of the created opcode is filled with zeros. + If this parameter is not NULL, then the GUID + extension region of GuidData will be copied to + the GUID extension region of the created opcode. + @param[in] OpCodeSize The size, in bytes, of created opcode. This value + must be >= sizeof(EFI_IFR_GUID). + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateGuidOpCode ( + IN VOID *OpCodeHandle, + IN CONST EFI_GUID *Guid, + IN CONST VOID *GuidOpCode, OPTIONAL + IN UINTN OpCodeSize + ) +{ + EFI_IFR_GUID OpCode; + EFI_IFR_GUID *OpCodePointer; + + ASSERT (Guid != NULL); + ASSERT (OpCodeSize >= sizeof (OpCode)); + + ZeroMem (&OpCode, sizeof (OpCode)); + CopyGuid ((EFI_GUID *)(VOID *)&OpCode.Guid, Guid); + + OpCodePointer = (EFI_IFR_GUID *)InternalHiiCreateOpCodeExtended ( + OpCodeHandle, + &OpCode, + EFI_IFR_GUID_OP, + sizeof (OpCode), + OpCodeSize - sizeof (OpCode), + 0 + ); + if (OpCodePointer != NULL && GuidOpCode != NULL) { + CopyMem (OpCodePointer + 1, (EFI_IFR_GUID *)GuidOpCode + 1, OpCodeSize - sizeof (OpCode)); + } + return (UINT8 *)OpCodePointer; +} + +/** + Create EFI_IFR_ACTION_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If any reserved bits are set in QuestionFlags, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] QuestionId Question ID + @param[in] Prompt String ID for Prompt + @param[in] Help String ID for Help + @param[in] QuestionFlags Flags in Question Header + @param[in] QuestionConfig String ID for configuration + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateActionOpCode ( + IN VOID *OpCodeHandle, + IN EFI_QUESTION_ID QuestionId, + IN EFI_STRING_ID Prompt, + IN EFI_STRING_ID Help, + IN UINT8 QuestionFlags, + IN EFI_STRING_ID QuestionConfig + ) +{ + EFI_IFR_ACTION OpCode; + + ASSERT ((QuestionFlags & (~(EFI_IFR_FLAG_READ_ONLY | EFI_IFR_FLAG_CALLBACK | EFI_IFR_FLAG_RESET_REQUIRED | EFI_IFR_FLAG_OPTIONS_ONLY))) == 0); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Question.QuestionId = QuestionId; + OpCode.Question.Header.Prompt = Prompt; + OpCode.Question.Header.Help = Help; + OpCode.Question.Flags = QuestionFlags; + OpCode.QuestionConfig = QuestionConfig; + + return InternalHiiCreateOpCode (OpCodeHandle, &OpCode, EFI_IFR_ACTION_OP, sizeof (OpCode)); +} + +/** + Create EFI_IFR_SUBTITLE_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If any reserved bits are set in Flags, then ASSERT(). + If Scope > 1, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] Prompt String ID for Prompt + @param[in] Help String ID for Help + @param[in] Flags Subtitle opcode flags + @param[in] Scope 1 if this opcpde is the beginning of a new scope. + 0 if this opcode is within the current scope. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateSubTitleOpCode ( + IN VOID *OpCodeHandle, + IN EFI_STRING_ID Prompt, + IN EFI_STRING_ID Help, + IN UINT8 Flags, + IN UINT8 Scope + ) +{ + EFI_IFR_SUBTITLE OpCode; + + ASSERT (Scope <= 1); + ASSERT ((Flags & (~(EFI_IFR_FLAGS_HORIZONTAL))) == 0); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Statement.Prompt = Prompt; + OpCode.Statement.Help = Help; + OpCode.Flags = Flags; + + return InternalHiiCreateOpCodeExtended ( + OpCodeHandle, + &OpCode, + EFI_IFR_SUBTITLE_OP, + sizeof (OpCode), + 0, + Scope + ); +} + +/** + Create EFI_IFR_REF_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If any reserved bits are set in QuestionFlags, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] FormId Destination Form ID + @param[in] Prompt String ID for Prompt + @param[in] Help String ID for Help + @param[in] QuestionFlags Flags in Question Header + @param[in] QuestionId Question ID + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateGotoOpCode ( + IN VOID *OpCodeHandle, + IN EFI_FORM_ID FormId, + IN EFI_STRING_ID Prompt, + IN EFI_STRING_ID Help, + IN UINT8 QuestionFlags, + IN EFI_QUESTION_ID QuestionId + ) +{ + EFI_IFR_REF OpCode; + + ASSERT ((QuestionFlags & (~(EFI_IFR_FLAG_READ_ONLY | EFI_IFR_FLAG_CALLBACK | EFI_IFR_FLAG_RESET_REQUIRED | EFI_IFR_FLAG_OPTIONS_ONLY))) == 0); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Question.Header.Prompt = Prompt; + OpCode.Question.Header.Help = Help; + OpCode.Question.QuestionId = QuestionId; + OpCode.Question.Flags = QuestionFlags; + OpCode.FormId = FormId; + + return InternalHiiCreateOpCode (OpCodeHandle, &OpCode, EFI_IFR_REF_OP, sizeof (OpCode)); +} + +/** + Create EFI_IFR_CHECKBOX_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If any reserved bits are set in QuestionFlags, then ASSERT(). + If any reserved bits are set in CheckBoxFlags, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] QuestionId Question ID + @param[in] VarStoreId Storage ID + @param[in] VarOffset Offset in Storage + @param[in] Prompt String ID for Prompt + @param[in] Help String ID for Help + @param[in] QuestionFlags Flags in Question Header + @param[in] CheckBoxFlags Flags for checkbox opcode + @param[in] DefaultsOpCodeHandle Handle for a buffer of DEFAULT opcodes. This + is an optional parameter that may be NULL. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateCheckBoxOpCode ( + IN VOID *OpCodeHandle, + IN EFI_QUESTION_ID QuestionId, + IN EFI_VARSTORE_ID VarStoreId, + IN UINT16 VarOffset, + IN EFI_STRING_ID Prompt, + IN EFI_STRING_ID Help, + IN UINT8 QuestionFlags, + IN UINT8 CheckBoxFlags, + IN VOID *DefaultsOpCodeHandle OPTIONAL + ) +{ + EFI_IFR_CHECKBOX OpCode; + UINTN Position; + + ASSERT ((QuestionFlags & (~(EFI_IFR_FLAG_READ_ONLY | EFI_IFR_FLAG_CALLBACK | EFI_IFR_FLAG_RESET_REQUIRED | EFI_IFR_FLAG_OPTIONS_ONLY))) == 0); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Question.QuestionId = QuestionId; + OpCode.Question.VarStoreId = VarStoreId; + OpCode.Question.VarStoreInfo.VarOffset = VarOffset; + OpCode.Question.Header.Prompt = Prompt; + OpCode.Question.Header.Help = Help; + OpCode.Question.Flags = QuestionFlags; + OpCode.Flags = CheckBoxFlags; + + if (DefaultsOpCodeHandle == NULL) { + return InternalHiiCreateOpCode (OpCodeHandle, &OpCode, EFI_IFR_CHECKBOX_OP, sizeof (OpCode)); + } + + Position = InternalHiiOpCodeHandlePosition (OpCodeHandle); + InternalHiiCreateOpCodeExtended (OpCodeHandle, &OpCode, EFI_IFR_CHECKBOX_OP, sizeof (OpCode), 0, 1); + InternalHiiAppendOpCodes (OpCodeHandle, DefaultsOpCodeHandle); + HiiCreateEndOpCode (OpCodeHandle); + return InternalHiiOpCodeHandleBuffer (OpCodeHandle) + Position; +} + +/** + Create EFI_IFR_NUMERIC_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If any reserved bits are set in QuestionFlags, then ASSERT(). + If any reserved bits are set in NumericFlags, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] QuestionId Question ID + @param[in] VarStoreId Storage ID + @param[in] VarOffset Offset in Storage + @param[in] Prompt String ID for Prompt + @param[in] Help String ID for Help + @param[in] QuestionFlags Flags in Question Header + @param[in] NumericFlags Flags for numeric opcode + @param[in] Minimum Numeric minimum value + @param[in] Maximum Numeric maximum value + @param[in] Step Numeric step for edit + @param[in] DefaultsOpCodeHandle Handle for a buffer of DEFAULT opcodes. This + is an optional parameter that may be NULL. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateNumericOpCode ( + IN VOID *OpCodeHandle, + IN EFI_QUESTION_ID QuestionId, + IN EFI_VARSTORE_ID VarStoreId, + IN UINT16 VarOffset, + IN EFI_STRING_ID Prompt, + IN EFI_STRING_ID Help, + IN UINT8 QuestionFlags, + IN UINT8 NumericFlags, + IN UINT64 Minimum, + IN UINT64 Maximum, + IN UINT64 Step, + IN VOID *DefaultsOpCodeHandle OPTIONAL + ) +{ + EFI_IFR_NUMERIC OpCode; + UINTN Position; + + ASSERT ((QuestionFlags & (~(EFI_IFR_FLAG_READ_ONLY | EFI_IFR_FLAG_CALLBACK | EFI_IFR_FLAG_RESET_REQUIRED | EFI_IFR_FLAG_OPTIONS_ONLY))) == 0); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Question.QuestionId = QuestionId; + OpCode.Question.VarStoreId = VarStoreId; + OpCode.Question.VarStoreInfo.VarOffset = VarOffset; + OpCode.Question.Header.Prompt = Prompt; + OpCode.Question.Header.Help = Help; + OpCode.Question.Flags = QuestionFlags; + OpCode.Flags = NumericFlags; + + switch (NumericFlags & EFI_IFR_NUMERIC_SIZE) { + case EFI_IFR_NUMERIC_SIZE_1: + OpCode.data.u8.MinValue = (UINT8)Minimum; + OpCode.data.u8.MaxValue = (UINT8)Maximum; + OpCode.data.u8.Step = (UINT8)Step; + break; + + case EFI_IFR_NUMERIC_SIZE_2: + OpCode.data.u16.MinValue = (UINT16)Minimum; + OpCode.data.u16.MaxValue = (UINT16)Maximum; + OpCode.data.u16.Step = (UINT16)Step; + break; + + case EFI_IFR_NUMERIC_SIZE_4: + OpCode.data.u32.MinValue = (UINT32)Minimum; + OpCode.data.u32.MaxValue = (UINT32)Maximum; + OpCode.data.u32.Step = (UINT32)Step; + break; + + case EFI_IFR_NUMERIC_SIZE_8: + OpCode.data.u64.MinValue = Minimum; + OpCode.data.u64.MaxValue = Maximum; + OpCode.data.u64.Step = Step; + break; + } + + if (DefaultsOpCodeHandle == NULL) { + return InternalHiiCreateOpCode (OpCodeHandle, &OpCode, EFI_IFR_NUMERIC_OP, sizeof (OpCode)); + } + + Position = InternalHiiOpCodeHandlePosition (OpCodeHandle); + InternalHiiCreateOpCodeExtended (OpCodeHandle, &OpCode, EFI_IFR_NUMERIC_OP, sizeof (OpCode), 0, 1); + InternalHiiAppendOpCodes (OpCodeHandle, DefaultsOpCodeHandle); + HiiCreateEndOpCode (OpCodeHandle); + return InternalHiiOpCodeHandleBuffer (OpCodeHandle) + Position; +} + +/** + Create EFI_IFR_STRING_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If any reserved bits are set in QuestionFlags, then ASSERT(). + If any reserved bits are set in StringFlags, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] QuestionId Question ID + @param[in] VarStoreId Storage ID + @param[in] VarOffset Offset in Storage + @param[in] Prompt String ID for Prompt + @param[in] Help String ID for Help + @param[in] QuestionFlags Flags in Question Header + @param[in] StringFlags Flags for string opcode + @param[in] MinSize String minimum length + @param[in] MaxSize String maximum length + @param[in] DefaultsOpCodeHandle Handle for a buffer of DEFAULT opcodes. This + is an optional parameter that may be NULL. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateStringOpCode ( + IN VOID *OpCodeHandle, + IN EFI_QUESTION_ID QuestionId, + IN EFI_VARSTORE_ID VarStoreId, + IN UINT16 VarOffset, + IN EFI_STRING_ID Prompt, + IN EFI_STRING_ID Help, + IN UINT8 QuestionFlags, + IN UINT8 StringFlags, + IN UINT8 MinSize, + IN UINT8 MaxSize, + IN VOID *DefaultsOpCodeHandle OPTIONAL + ) +{ + EFI_IFR_STRING OpCode; + UINTN Position; + + ASSERT ((QuestionFlags & (~(EFI_IFR_FLAG_READ_ONLY | EFI_IFR_FLAG_CALLBACK | EFI_IFR_FLAG_RESET_REQUIRED | EFI_IFR_FLAG_OPTIONS_ONLY))) == 0); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Question.Header.Prompt = Prompt; + OpCode.Question.Header.Help = Help; + OpCode.Question.QuestionId = QuestionId; + OpCode.Question.VarStoreId = VarStoreId; + OpCode.Question.VarStoreInfo.VarOffset = VarOffset; + OpCode.Question.Flags = QuestionFlags; + OpCode.MinSize = MinSize; + OpCode.MaxSize = MaxSize; + OpCode.Flags = (UINT8) (StringFlags & EFI_IFR_STRING_MULTI_LINE); + + if (DefaultsOpCodeHandle == NULL) { + return InternalHiiCreateOpCode (OpCodeHandle, &OpCode, EFI_IFR_STRING_OP, sizeof (OpCode)); + } + + Position = InternalHiiOpCodeHandlePosition (OpCodeHandle); + InternalHiiCreateOpCodeExtended (OpCodeHandle, &OpCode, EFI_IFR_STRING_OP, sizeof (OpCode), 0, 1); + InternalHiiAppendOpCodes (OpCodeHandle, DefaultsOpCodeHandle); + HiiCreateEndOpCode (OpCodeHandle); + return InternalHiiOpCodeHandleBuffer (OpCodeHandle) + Position; +} + +/** + Create EFI_IFR_ONE_OF_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If any reserved bits are set in QuestionFlags, then ASSERT(). + If any reserved bits are set in OneOfFlags, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] QuestionId Question ID + @param[in] VarStoreId Storage ID + @param[in] VarOffset Offset in Storage + @param[in] Prompt String ID for Prompt + @param[in] Help String ID for Help + @param[in] QuestionFlags Flags in Question Header + @param[in] OneOfFlags Flags for oneof opcode + @param[in] OptionsOpCodeHandle Handle for a buffer of ONE_OF_OPTION opcodes. + @param[in] DefaultsOpCodeHandle Handle for a buffer of DEFAULT opcodes. This + is an optional parameter that may be NULL. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateOneOfOpCode ( + IN VOID *OpCodeHandle, + IN EFI_QUESTION_ID QuestionId, + IN EFI_VARSTORE_ID VarStoreId, + IN UINT16 VarOffset, + IN EFI_STRING_ID Prompt, + IN EFI_STRING_ID Help, + IN UINT8 QuestionFlags, + IN UINT8 OneOfFlags, + IN VOID *OptionsOpCodeHandle, + IN VOID *DefaultsOpCodeHandle OPTIONAL + ) +{ + EFI_IFR_ONE_OF OpCode; + UINTN Position; + + ASSERT (OptionsOpCodeHandle != NULL); + ASSERT ((QuestionFlags & (~(EFI_IFR_FLAG_READ_ONLY | EFI_IFR_FLAG_CALLBACK | EFI_IFR_FLAG_RESET_REQUIRED | EFI_IFR_FLAG_OPTIONS_ONLY))) == 0); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Question.Header.Prompt = Prompt; + OpCode.Question.Header.Help = Help; + OpCode.Question.QuestionId = QuestionId; + OpCode.Question.VarStoreId = VarStoreId; + OpCode.Question.VarStoreInfo.VarOffset = VarOffset; + OpCode.Question.Flags = QuestionFlags; + OpCode.Flags = OneOfFlags; + + Position = InternalHiiOpCodeHandlePosition (OpCodeHandle); + InternalHiiCreateOpCodeExtended (OpCodeHandle, &OpCode, EFI_IFR_ONE_OF_OP, sizeof (OpCode), 0, 1); + InternalHiiAppendOpCodes (OpCodeHandle, OptionsOpCodeHandle); + if (DefaultsOpCodeHandle != NULL) { + InternalHiiAppendOpCodes (OpCodeHandle, DefaultsOpCodeHandle); + } + HiiCreateEndOpCode (OpCodeHandle); + return InternalHiiOpCodeHandleBuffer (OpCodeHandle) + Position; +} + +/** + Create EFI_IFR_ORDERED_LIST_OP opcode. + + If OpCodeHandle is NULL, then ASSERT(). + If any reserved bits are set in QuestionFlags, then ASSERT(). + If any reserved bits are set in OrderedListFlags, then ASSERT(). + + @param[in] OpCodeHandle Handle to the buffer of opcodes. + @param[in] QuestionId Question ID + @param[in] VarStoreId Storage ID + @param[in] VarOffset Offset in Storage + @param[in] Prompt String ID for Prompt + @param[in] Help String ID for Help + @param[in] QuestionFlags Flags in Question Header + @param[in] OrderedListFlags Flags for ordered list opcode + @param[in] DataType Type for option value + @param[in] MaxContainers Maximum count for options in this ordered list + @param[in] OptionsOpCodeHandle Handle for a buffer of ONE_OF_OPTION opcodes. + @param[in] DefaultsOpCodeHandle Handle for a buffer of DEFAULT opcodes. This + is an optional parameter that may be NULL. + + @retval NULL There is not enough space left in Buffer to add the opcode. + @retval Other A pointer to the created opcode. + +**/ +UINT8 * +EFIAPI +HiiCreateOrderedListOpCode ( + IN VOID *OpCodeHandle, + IN EFI_QUESTION_ID QuestionId, + IN EFI_VARSTORE_ID VarStoreId, + IN UINT16 VarOffset, + IN EFI_STRING_ID Prompt, + IN EFI_STRING_ID Help, + IN UINT8 QuestionFlags, + IN UINT8 OrderedListFlags, + IN UINT8 DataType, + IN UINT8 MaxContainers, + IN VOID *OptionsOpCodeHandle, + IN VOID *DefaultsOpCodeHandle OPTIONAL + ) +{ + EFI_IFR_ORDERED_LIST OpCode; + UINTN Position; + + ASSERT (OptionsOpCodeHandle != NULL); + ASSERT ((QuestionFlags & (~(EFI_IFR_FLAG_READ_ONLY | EFI_IFR_FLAG_CALLBACK | EFI_IFR_FLAG_RESET_REQUIRED | EFI_IFR_FLAG_OPTIONS_ONLY))) == 0); + + ZeroMem (&OpCode, sizeof (OpCode)); + OpCode.Question.Header.Prompt = Prompt; + OpCode.Question.Header.Help = Help; + OpCode.Question.QuestionId = QuestionId; + OpCode.Question.VarStoreId = VarStoreId; + OpCode.Question.VarStoreInfo.VarOffset = VarOffset; + OpCode.Question.Flags = QuestionFlags; + OpCode.MaxContainers = MaxContainers; + OpCode.Flags = OrderedListFlags; + + Position = InternalHiiOpCodeHandlePosition (OpCodeHandle); + InternalHiiCreateOpCodeExtended (OpCodeHandle, &OpCode, EFI_IFR_ORDERED_LIST_OP, sizeof (OpCode), 0, 1); + InternalHiiAppendOpCodes (OpCodeHandle, OptionsOpCodeHandle); + if (DefaultsOpCodeHandle != NULL) { + InternalHiiAppendOpCodes (OpCodeHandle, DefaultsOpCodeHandle); + } + HiiCreateEndOpCode (OpCodeHandle); + return InternalHiiOpCodeHandleBuffer (OpCodeHandle) + Position; +} + +/** + This is the internal worker function to update the data in + a form specified by FormSetGuid, FormId and Label. + + @param FormSetGuid The optional Formset GUID. + @param FormId The Form ID. + @param Package The package header. + + @param TempPacakge The resultant package. + + @retval EFI_SUCCESS The function completes successfully. + +**/ +EFI_STATUS +EFIAPI +InternalHiiUpdateFormPackageData ( + IN EFI_GUID *FormSetGuid, OPTIONAL + IN EFI_FORM_ID FormId, + IN EFI_HII_PACKAGE_HEADER *Package, + IN HII_LIB_OPCODE_BUFFER *OpCodeBufferStart, + IN HII_LIB_OPCODE_BUFFER *OpCodeBufferEnd, OPTIONAL + OUT EFI_HII_PACKAGE_HEADER *TempPackage + ) +{ + UINTN AddSize; + UINT8 *BufferPos; + EFI_HII_PACKAGE_HEADER PackageHeader; + UINTN Offset; + EFI_IFR_OP_HEADER *IfrOpHdr; + EFI_IFR_OP_HEADER *UpdateIfrOpHdr; + BOOLEAN GetFormSet; + BOOLEAN GetForm; + BOOLEAN Updated; + EFI_IFR_OP_HEADER *AddOpCode; + UINT32 UpdatePackageLength; + + CopyMem (TempPackage, Package, sizeof (EFI_HII_PACKAGE_HEADER)); + UpdatePackageLength = sizeof (EFI_HII_PACKAGE_HEADER); + BufferPos = (UINT8 *) (TempPackage + 1); + + CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER)); + IfrOpHdr = (EFI_IFR_OP_HEADER *)((UINT8 *) Package + sizeof (EFI_HII_PACKAGE_HEADER)); + Offset = sizeof (EFI_HII_PACKAGE_HEADER); + GetFormSet = (BOOLEAN) ((FormSetGuid == NULL) ? TRUE : FALSE); + GetForm = FALSE; + Updated = FALSE; + + while (Offset < PackageHeader.Length) { + CopyMem (BufferPos, IfrOpHdr, IfrOpHdr->Length); + BufferPos += IfrOpHdr->Length; + UpdatePackageLength += IfrOpHdr->Length; + + // + // Find the matched FormSet and Form + // + if ((IfrOpHdr->OpCode == EFI_IFR_FORM_SET_OP) && (FormSetGuid != NULL)) { + if (CompareGuid((GUID *)(VOID *)&((EFI_IFR_FORM_SET *) IfrOpHdr)->Guid, FormSetGuid)) { + GetFormSet = TRUE; + } else { + GetFormSet = FALSE; + } + } else if (IfrOpHdr->OpCode == EFI_IFR_FORM_OP) { + if (CompareMem (&((EFI_IFR_FORM *) IfrOpHdr)->FormId, &FormId, sizeof (EFI_FORM_ID)) == 0) { + GetForm = TRUE; + } else { + GetForm = FALSE; + } + } + + // + // The matched Form is found, and Update data in this form + // + if (GetFormSet && GetForm && !Updated) { + UpdateIfrOpHdr = (EFI_IFR_OP_HEADER *) OpCodeBufferStart->Buffer; + if ((UpdateIfrOpHdr->Length == IfrOpHdr->Length) && \ + (CompareMem (IfrOpHdr, UpdateIfrOpHdr, UpdateIfrOpHdr->Length) == 0)) { + // + // Remove the original data when End OpCode buffer exist. + // + if (OpCodeBufferEnd != NULL) { + Offset += IfrOpHdr->Length; + IfrOpHdr = (EFI_IFR_OP_HEADER *) ((UINT8 *) (IfrOpHdr) + IfrOpHdr->Length); + UpdateIfrOpHdr = (EFI_IFR_OP_HEADER *) OpCodeBufferEnd->Buffer; + while (Offset < PackageHeader.Length) { + // + // Search the matched end opcode + // + if ((UpdateIfrOpHdr->Length == IfrOpHdr->Length) && \ + (CompareMem (IfrOpHdr, UpdateIfrOpHdr, UpdateIfrOpHdr->Length) == 0)) { + break; + } + // + // Go to the next Op-Code + // + Offset += IfrOpHdr->Length; + IfrOpHdr = (EFI_IFR_OP_HEADER *) ((UINT8 *) (IfrOpHdr) + IfrOpHdr->Length); + } + + if (Offset >= PackageHeader.Length) { + // + // The end opcode is not found. + // + return EFI_NOT_FOUND; + } + } + // + // Insert the updated data + // + UpdateIfrOpHdr = (EFI_IFR_OP_HEADER *) OpCodeBufferStart->Buffer; + AddOpCode = (EFI_IFR_OP_HEADER *) (OpCodeBufferStart->Buffer + UpdateIfrOpHdr->Length); + AddSize = UpdateIfrOpHdr->Length; + while (AddSize < OpCodeBufferStart->Position) { + CopyMem (BufferPos, AddOpCode, AddOpCode->Length); + BufferPos += AddOpCode->Length; + UpdatePackageLength += AddOpCode->Length; + + AddOpCode = (EFI_IFR_OP_HEADER *) ((UINT8 *) (AddOpCode) + AddOpCode->Length); + AddSize += AddOpCode->Length; + } + + if (OpCodeBufferEnd != NULL) { + // + // Add the end opcode + // + CopyMem (BufferPos, IfrOpHdr, IfrOpHdr->Length); + BufferPos += IfrOpHdr->Length; + UpdatePackageLength += IfrOpHdr->Length; + } + // + // Set update flag + // + Updated = TRUE; + } + } + + // + // Go to the next Op-Code + // + Offset += IfrOpHdr->Length; + IfrOpHdr = (EFI_IFR_OP_HEADER *) ((CHAR8 *) (IfrOpHdr) + IfrOpHdr->Length); + } + + if (!Updated) { + // + // The updated opcode buffer is not found. + // + return EFI_NOT_FOUND; + } + // + // Update the package length. + // + PackageHeader.Length = UpdatePackageLength; + CopyMem (TempPackage, &PackageHeader, sizeof (EFI_HII_PACKAGE_HEADER)); + + return EFI_SUCCESS; +} + +/** + This function updates a form that has previously been registered with the HII + Database. This function will perform at most one update operation. + + The form to update is specified by Handle, FormSetGuid, and FormId. Binary + comparisons of IFR opcodes are performed from the beginning of the form being + updated until an IFR opcode is found that exactly matches the first IFR opcode + specifed by StartOpCodeHandle. The following rules are used to determine if + an insert, replace, or delete operation is performed. + + 1) If no matches are found, then NULL is returned. + 2) If a match is found, and EndOpCodeHandle is NULL, then all of the IFR opcodes + from StartOpcodeHandle except the first opcode are inserted immediately after + the matching IFR opcode in the form beng updated. + 3) If a match is found, and EndOpCodeHandle is not NULL, then a search is made + from the matching IFR opcode until an IFR opcode exatly matches the first + IFR opcode specified by EndOpCodeHandle. If no match is found for the first + IFR opcode specified by EndOpCodeHandle, then NULL is returned. If a match + is found, then all of the IFR opcodes between the start match and the end + match are deleted from the form being updated and all of the IFR opcodes + from StartOpcodeHandle except the first opcode are inserted immediately after + the matching start IFR opcode. If StartOpCcodeHandle only contains one + IFR instruction, then the result of ths operation will delete all of the IFR + opcodes between the start end matches. + + If HiiHandle is NULL, then ASSERT(). + If StartOpCodeHandle is NULL, then ASSERT(). + + @param[in] HiiHandle The HII Handle of the form to update. + @param[in] FormSetGuid The Formset GUID of the form to update. This + is an optional parameter that may be NULL. + If it is NULL, all FormSet will be updated. + @param[in] FormId The ID of the form to update. + @param[in] StartOpCodeHandle An OpCode Handle that contains the set of IFR + opcodes to be inserted or replaced in the form. + The first IFR instruction in StartOpCodeHandle + is used to find matching IFR opcode in the + form. + @param[in] EndOpCodeHandle An OpCcode Handle that contains the IFR opcode + that marks the end of a replace operation in + the form. This is an optional parameter that + may be NULL. If it is NULL, then an the IFR + opcodes specified by StartOpCodeHandle are + inserted into the form. + + @retval EFI_OUT_OF_RESOURCES No enough memory resource is allocated. + @retval EFI_NOT_FOUND The following cases will return EFI_NOT_FOUND. + 1) The form specified by HiiHandle, FormSetGuid, + and FormId could not be found in the HII Database. + 2) No IFR opcodes in the target form match the first + IFR opcode in StartOpCodeHandle. + 3) EndOpCOde is not NULL, and no IFR opcodes in the + target form following a matching start opcode match + the first IFR opcode in EndOpCodeHandle. + @retval EFI_SUCCESS The matched form is updated by StartOpcode. + +**/ +EFI_STATUS +EFIAPI +HiiUpdateForm ( + IN EFI_HII_HANDLE HiiHandle, + IN EFI_GUID *FormSetGuid, OPTIONAL + IN EFI_FORM_ID FormId, + IN VOID *StartOpcodeHandle, + IN VOID *EndOpcodeHandle OPTIONAL + ) +{ + EFI_STATUS Status; + EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList; + UINT32 PackageListLength; + UINT32 Offset; + EFI_HII_PACKAGE_LIST_HEADER *UpdatePackageList; + UINTN BufferSize; + UINT8 *UpdateBufferPos; + EFI_HII_PACKAGE_HEADER *Package; + EFI_HII_PACKAGE_HEADER *TempPacakge; + EFI_HII_PACKAGE_HEADER PackageHeader; + BOOLEAN Updated; + HII_LIB_OPCODE_BUFFER *OpCodeBufferStart; + HII_LIB_OPCODE_BUFFER *OpCodeBufferEnd; + + // + // Input update data can't be NULL. + // + ASSERT (HiiHandle != NULL); + ASSERT (StartOpcodeHandle != NULL); + UpdatePackageList = NULL; + TempPacakge = NULL; + HiiPackageList = NULL; + + // + // Restrive buffer data from Opcode Handle + // + OpCodeBufferStart = (HII_LIB_OPCODE_BUFFER *) StartOpcodeHandle; + OpCodeBufferEnd = (HII_LIB_OPCODE_BUFFER *) EndOpcodeHandle; + + // + // Get the orginal package list + // + BufferSize = 0; + HiiPackageList = NULL; + Status = gHiiDatabase->ExportPackageLists (gHiiDatabase, HiiHandle, &BufferSize, HiiPackageList); + // + // The return status should always be EFI_BUFFER_TOO_SMALL as input buffer's size is 0. + // + if (Status != EFI_BUFFER_TOO_SMALL) { + return Status; + } + + HiiPackageList = AllocatePool (BufferSize); + if (HiiPackageList == NULL) { + Status = EFI_OUT_OF_RESOURCES; + goto Finish; + } + + Status = gHiiDatabase->ExportPackageLists (gHiiDatabase, HiiHandle, &BufferSize, HiiPackageList); + if (EFI_ERROR (Status)) { + goto Finish; + } + + // + // Calculate and allocate space for retrieval of IFR data + // + BufferSize += OpCodeBufferStart->Position; + UpdatePackageList = AllocateZeroPool (BufferSize); + if (UpdatePackageList == NULL) { + Status = EFI_OUT_OF_RESOURCES; + goto Finish; + } + + // + // Allocate temp buffer to store the temp updated package buffer + // + TempPacakge = AllocateZeroPool (BufferSize); + if (TempPacakge == NULL) { + Status = EFI_OUT_OF_RESOURCES; + goto Finish; + } + + UpdateBufferPos = (UINT8 *) UpdatePackageList; + + // + // Copy the package list header + // + CopyMem (UpdateBufferPos, HiiPackageList, sizeof (EFI_HII_PACKAGE_LIST_HEADER)); + UpdateBufferPos += sizeof (EFI_HII_PACKAGE_LIST_HEADER); + + // + // Go through each package to find the matched pacakge and update one by one + // + Updated = FALSE; + Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER); + PackageListLength = ReadUnaligned32 (&HiiPackageList->PackageLength); + while (Offset < PackageListLength) { + Package = (EFI_HII_PACKAGE_HEADER *) (((UINT8 *) HiiPackageList) + Offset); + CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER)); + Offset += Package->Length; + + if (Package->Type == EFI_HII_PACKAGE_FORMS) { + // + // Check this package is the matched package. + // + Status = InternalHiiUpdateFormPackageData (FormSetGuid, FormId, Package, OpCodeBufferStart, OpCodeBufferEnd, TempPacakge); + // + // The matched package is found. Its pacakge buffer will be updated by the input new data. + // + if (!EFI_ERROR(Status)) { + // + // Set Update Flag + // + Updated = TRUE; + // + // Add updated package buffer + // + Package = TempPacakge; + } + } + + // + // Add pacakge buffer + // + CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER)); + CopyMem (UpdateBufferPos, Package, PackageHeader.Length); + UpdateBufferPos += PackageHeader.Length; + } + + if (Updated) { + // + // Update package list length + // + BufferSize = UpdateBufferPos - (UINT8 *) UpdatePackageList; + WriteUnaligned32 (&UpdatePackageList->PackageLength, (UINT32) BufferSize); + + // + // Update Pacakge to show form + // + Status = gHiiDatabase->UpdatePackageList (gHiiDatabase, HiiHandle, UpdatePackageList); + } else { + // + // Not matched form is found and updated. + // + Status = EFI_NOT_FOUND; + } + +Finish: + if (HiiPackageList != NULL) { + FreePool (HiiPackageList); + } + + if (UpdatePackageList != NULL) { + FreePool (UpdatePackageList); + } + + if (TempPacakge != NULL) { + FreePool (TempPacakge); + } + + return Status; +} + +/** + Configure the buffer accrording to ConfigBody strings in the format of + , , , . + This ConfigBody strings is generated by UEFI VfrCompiler for the default + values in a Form Set. The name of the ConfigBody strings is VfrMyIfrNVDataDefault0000 + constructed following this rule: + "Vfr" + varstore.name + "Default" + defaultstore.attributes. + Check the generated C file in Output for details. + + @param Buffer The start address of buffer. + @param BufferSize The size of buffer. + @param Number The number of the strings. + @param ... Variable argument list for default value in format + generated by the tool. + + @retval EFI_BUFFER_TOO_SMALL the BufferSize is too small to operate. + @retval EFI_INVALID_PARAMETER Buffer is NULL or BufferSize is 0. + @retval EFI_SUCCESS Operation successful. + +**/ +EFI_STATUS +EFIAPI +HiiIfrLibExtractDefault( + IN VOID *Buffer, + IN UINTN *BufferSize, + UINTN Number, + ... + ) +{ + VA_LIST Args; + UINTN Index; + UINT32 TotalLen; + UINT8 *BufCfgArray; + UINT8 *BufferPos; + UINT16 Offset; + UINT16 Width; + UINT8 *Value; + + if ((Buffer == NULL) || (BufferSize == NULL)) { + return EFI_INVALID_PARAMETER; + } + + Offset = 0; + Width = 0; + Value = NULL; + + VA_START (Args, Number); + for (Index = 0; Index < Number; Index++) { + BufCfgArray = (UINT8 *) VA_ARG (Args, VOID *); + TotalLen = ReadUnaligned32 ((UINT32 *)BufCfgArray); + BufferPos = BufCfgArray + sizeof (UINT32); + + while ((UINT32)(BufferPos - BufCfgArray) < TotalLen) { + Offset = ReadUnaligned16 ((UINT16 *)BufferPos); + BufferPos += sizeof (UINT16); + Width = ReadUnaligned16 ((UINT16 *)BufferPos); + BufferPos += sizeof (UINT16); + Value = BufferPos; + BufferPos += Width; + + if ((UINTN)(Offset + Width) > *BufferSize) { + return EFI_BUFFER_TOO_SMALL; + } + + CopyMem ((UINT8 *)Buffer + Offset, Value, Width); + } + } + VA_END (Args); + + *BufferSize = (UINTN)Offset; + + return EFI_SUCCESS; +}