Function CompileBootOption

rEFIt_UEFI/Platform/BootOptions.cpp:627–680

Compiles boot option params set in BootOption to valid BootXXXX var content (BootOption->Variable). * BootOption fields Attributes, FilePathListLength, FilePathList, Description, OptionalData * and OptionalDataSize must be set. */

 * and OptionalDataSize must be set.
 */
EFI_STATUS
CompileBootOption (
    BO_BOOT_OPTION      *BootOption
    )
{
    UINT8               *Ptr8;
    
    
    if (BootOption->Description == NULL ||
        BootOption->FilePathList == NULL ||
        BootOption->FilePathListLength == 0 ||
        (BootOption->OptionalData != NULL && BootOption->OptionalDataSize == 0)
        ) {
        DBG("CompileBootOption: invalid input params\n");
        return EFI_INVALID_PARAMETER;
    }
    
    BootOption->DescriptionSize = StrSize(BootOption->Description);
    BootOption->VariableSize = sizeof(BootOption->Attributes)   //UINT32
                                + sizeof(BootOption->FilePathListLength) //UINT16
                                + BootOption->DescriptionSize 
                                + BootOption->FilePathListLength
                                + BootOption->OptionalDataSize;
    BootOption->Variable = (__typeof__(BootOption->Variable))AllocateZeroPool(BootOption->VariableSize);
    if (BootOption->Variable == NULL) {
        DBG("CompileBootOption: EFI_OUT_OF_RESOURCES\n");
        return EFI_OUT_OF_RESOURCES;
    }
    Ptr8 = (UINT8*)BootOption->Variable;
    
    // Attributes
    *((UINT32*)Ptr8) = BootOption->Attributes;
    Ptr8 += sizeof(BootOption->Attributes);
    
    // FilePathListLength;
    *((UINT16*)Ptr8) = BootOption->FilePathListLength;
    Ptr8 += sizeof(BootOption->FilePathListLength);
    
    // Description
    CopyMem((CHAR16*)Ptr8, BootOption->Description, BootOption->DescriptionSize);
    Ptr8 += BootOption->DescriptionSize;
    
    // FilePathList
    CopyMem(Ptr8, BootOption->FilePathList, BootOption->FilePathListLength);
    Ptr8 += BootOption->FilePathListLength;
    
    // OptionalData
    if (BootOption->OptionalDataSize > 0) {
        CopyMem(Ptr8, BootOption->OptionalData, BootOption->OptionalDataSize);
//        Ptr8 += BootOption->OptionalDataSize;
    }
    
    return EFI_SUCCESS;
}


/** Reads BootXXXX (XXXX = BootNum) var, parses it and returns in BootOption.