Parses BootXXXX (XXXX = BootNum) var (from BootOption->Variable) and returns it in BootOption. * BootOption->Variable, BootOption->VariableSize and BootOption->BootNum must be set. */
| 561 | * BootOption->Variable, BootOption->VariableSize and BootOption->BootNum must be set. |
| 562 | */ |
| 563 | EFI_STATUS |
| 564 | ParseBootOption ( |
| 565 | OUT BO_BOOT_OPTION *BootOption |
| 566 | ) |
| 567 | { |
| 568 | UINT8 *Ptr8; |
| 569 | UINT8 *VarStart; |
| 570 | UINT8 *VarEnd; |
| 571 | |
| 572 | |
| 573 | if (BootOption->Variable == NULL || |
| 574 | BootOption->VariableSize <= sizeof(BootOption->Attributes) + sizeof(BootOption->FilePathListLength) |
| 575 | ) { |
| 576 | DBG("ParseBootOption: invalid input params\n"); |
| 577 | return EFI_INVALID_PARAMETER; |
| 578 | } |
| 579 | |
| 580 | VarStart = (UINT8*)BootOption->Variable; |
| 581 | VarEnd = VarStart + BootOption->VariableSize; |
| 582 | Ptr8 = VarStart; |
| 583 | |
| 584 | // Attributes |
| 585 | BootOption->Attributes = *((UINT32*)Ptr8); |
| 586 | Ptr8 += sizeof(BootOption->Attributes); |
| 587 | |
| 588 | // FilePathListLength |
| 589 | BootOption->FilePathListLength = *((UINT16*)Ptr8); |
| 590 | Ptr8 += sizeof(BootOption->FilePathListLength); |
| 591 | |
| 592 | // Description and it's size |
| 593 | BootOption->Description = (CHAR16*)Ptr8; |
| 594 | BootOption->DescriptionSize = StrSize(BootOption->Description); |
| 595 | Ptr8 += BootOption->DescriptionSize; |
| 596 | if (Ptr8 > VarEnd) { |
| 597 | DBG("ParseBootOption: invalid boot variable\n"); |
| 598 | return EFI_INVALID_PARAMETER; |
| 599 | } |
| 600 | |
| 601 | // FilePathList |
| 602 | BootOption->FilePathList = (EFI_DEVICE_PATH_PROTOCOL*)Ptr8; |
| 603 | Ptr8 += BootOption->FilePathListLength; |
| 604 | if (Ptr8 > VarEnd) { |
| 605 | DBG("ParseBootOption: invalid boot variable\n"); |
| 606 | return EFI_INVALID_PARAMETER; |
| 607 | } |
| 608 | |
| 609 | // OptionalData and it's size |
| 610 | if (Ptr8 < VarEnd) { |
| 611 | BootOption->OptionalData = Ptr8; |
| 612 | BootOption->OptionalDataSize = VarEnd - Ptr8; |
| 613 | } else { |
| 614 | BootOption->OptionalData = NULL; |
| 615 | BootOption->OptionalDataSize = 0; |
| 616 | } |
| 617 | Ptr8 += BootOption->OptionalDataSize; |
| 618 | |
| 619 | return EFI_SUCCESS; |
| 620 | } |
no test coverage detected