mirror of
https://github.com/LongSoft/UEFITool.git
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416 lines
15 KiB
C++
416 lines
15 KiB
C++
/* fssbuilder.cpp
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Copyright (c) 2015, Nikolaj Schlej. All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*/
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#include "ffsbuilder.h"
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#include "descriptor.h"
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#include "ffs.h"
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#include "peimage.h"
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#include "utility.h"
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#include "nvram.h"
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#include <cstring>
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USTATUS FfsBuilder::erase(const UModelIndex & index, UByteArray & erased)
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{
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// Sanity check
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if (!index.isValid())
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return U_INVALID_PARAMETER;
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// Try to get emptyByte value from item's parsing data
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UINT8 emptyByte = 0xFF;
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if (!model->hasEmptyParsingData(index)) {
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if (model->type(index) == Types::Volume) {
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VOLUME_PARSING_DATA pdata = *(VOLUME_PARSING_DATA*)model->parsingData(index).constData();
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emptyByte = pdata.emptyByte;
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}
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else if (model->type(index) == Types::File) {
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FILE_PARSING_DATA pdata = *(FILE_PARSING_DATA*)model->parsingData(index).constData();
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emptyByte = pdata.emptyByte;
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}
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}
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erased = UByteArray(model->header(index).size() + model->body(index).size() + model->tail(index).size(), emptyByte);
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return U_SUCCESS;
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}
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USTATUS FfsBuilder::build(const UModelIndex & root, UByteArray & image)
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{
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// Sanity check
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if (!root.isValid())
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return U_INVALID_PARAMETER;
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if (model->type(root) == Types::Capsule) {
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return buildCapsule(root, image);
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}
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else if (model->type(root) == Types::Image) {
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if (model->subtype(root) == Subtypes::IntelImage) {
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return buildIntelImage(root, image);
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}
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else if (model->subtype(root) == Subtypes::UefiImage) {
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return buildRawArea(root, image);
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}
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}
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildCapsule(const UModelIndex & index, UByteArray & capsule)
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{
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// Sanity check
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if (!index.isValid())
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return U_INVALID_PARAMETER;
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// No action
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if (model->action(index) == Actions::NoAction) {
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// Use original item data
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capsule = model->header(index) + model->body(index) + model->tail(index);
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return U_SUCCESS;
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}
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// Rebuild or Replace
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else if (model->action(index) == Actions::Rebuild
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|| model->action(index) == Actions::Replace) {
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if (model->rowCount(index)) {
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// Clear the supplied UByteArray
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capsule.clear();
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// Right now there is only one capsule image element supported
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if (model->rowCount(index) != 1) {
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msg(usprintf("buildCapsule: building of capsules with %d items is not yet supported", model->rowCount(index)), index);
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return U_NOT_IMPLEMENTED;
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}
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// Build image
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UModelIndex imageIndex = index.child(0, 0);
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UByteArray imageData;
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// Check image type
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if (model->type(imageIndex) == Types::Image) {
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USTATUS result = U_SUCCESS;
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if (model->subtype(imageIndex) == Subtypes::IntelImage) {
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result = buildIntelImage(imageIndex, imageData);
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}
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else if (model->subtype(imageIndex) == Subtypes::UefiImage) {
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result = buildRawArea(imageIndex, imageData);
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}
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else {
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msg(UString("buildCapsule: unexpected item subtype ") + itemSubtypeToUString(model->type(imageIndex), model->subtype(imageIndex)), imageIndex);
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return U_UNKNOWN_ITEM_TYPE;
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}
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// Check build result
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if (result) {
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msg(UString("buildCapsule: building of ") + model->name(imageIndex) + UString(" failed with error ") + errorCodeToUString(result), imageIndex);
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return result;
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}
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else
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capsule += imageData;
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}
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else {
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msg(UString("buildCapsule: unexpected item type ") + itemTypeToUString(model->type(imageIndex)), imageIndex);
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return U_UNKNOWN_ITEM_TYPE;
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}
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// Check size of reconstructed capsule body, it must remain the same
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UINT32 newSize = capsule.size();
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UINT32 oldSize = model->body(index).size();
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if (newSize > oldSize) {
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msg(usprintf("buildCapsule: new capsule size %Xh (%u) is bigger than the original %Xh (%u)", newSize, newSize, oldSize, oldSize), index);
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return U_INVALID_CAPSULE;
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}
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else if (newSize < oldSize) {
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msg(usprintf("buildCapsule: new capsule size %Xh (%u) is smaller than the original %Xh (%u)", newSize, newSize, oldSize, oldSize), index);
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return U_INVALID_CAPSULE;
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}
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}
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else
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capsule = model->body(index);
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// Build successful, append header and tail
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capsule = model->header(index) + capsule + model->tail(index);
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return U_SUCCESS;
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}
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msg(UString("buildCapsule: unexpected action " + actionTypeToUString(model->action(index))), index);
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildIntelImage(const UModelIndex & index, UByteArray & intelImage)
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{
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// Sanity check
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if (!index.isValid())
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return U_SUCCESS;
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// No action
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if (model->action(index) == Actions::NoAction) {
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intelImage = model->header(index) + model->body(index) + model->tail(index);
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return U_SUCCESS;
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}
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// Remove
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else if (model->action(index) == Actions::Remove) {
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intelImage.clear();
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return U_SUCCESS;
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}
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// Rebuild
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else if (model->action(index) == Actions::Rebuild) {
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// First child will always be descriptor for this type of image, and it's read only for now
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intelImage = model->header(index.child(0, 0)) + model->body(index.child(0, 0)) + model->tail(index.child(0, 0));
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// Process other regions
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for (int i = 1; i < model->rowCount(index); i++) {
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UModelIndex currentRegion = index.child(i, 0);
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// Skip regions with Remove action
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if (model->action(currentRegion) == Actions::Remove)
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continue;
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// Check item type to be either region or padding
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UINT8 type = model->type(currentRegion);
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if (type == Types::Padding) {
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// Add padding as is
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intelImage += model->header(currentRegion) + model->body(currentRegion) + model->tail(currentRegion);
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continue;
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}
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// Check region subtype
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USTATUS result;
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UByteArray region;
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UINT8 regionType = model->subtype(currentRegion);
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switch (regionType) {
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case Subtypes::BiosRegion:
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case Subtypes::PdrRegion:
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result = buildRawArea(currentRegion, region);
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if (result) {
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msg(UString("buildIntelImage: building of region ") + regionTypeToUString(regionType) + UString(" failed with error ") + errorCodeToUString(result), currentRegion);
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return result;
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}
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break;
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case Subtypes::MeRegion:
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case Subtypes::GbeRegion:
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case Subtypes::DevExp1Region:
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case Subtypes::Bios2Region:
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case Subtypes::MicrocodeRegion:
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case Subtypes::EcRegion:
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case Subtypes::DevExp2Region:
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case Subtypes::IeRegion:
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case Subtypes::Tgbe1Region:
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case Subtypes::Tgbe2Region:
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case Subtypes::Reserved1Region:
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case Subtypes::Reserved2Region:
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case Subtypes::PttRegion:
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// Add region as is
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region = model->header(currentRegion) + model->body(currentRegion);
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break;
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default:
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msg(UString("buildIntelImage: unknown region type"), currentRegion);
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return U_UNKNOWN_ITEM_TYPE;
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}
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// Append the resulting region
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intelImage += region;
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}
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// Check size of new image, it must be same as old one
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UINT32 newSize = intelImage.size();
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UINT32 oldSize = model->body(index).size();
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if (newSize > oldSize) {
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msg(usprintf("buildIntelImage: new image size %Xh (%u) is bigger than the original %Xh (%u)", newSize, newSize, oldSize, oldSize), index);
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return U_INVALID_IMAGE;
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}
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else if (newSize < oldSize) {
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msg(usprintf("buildIntelImage: new image size %Xh (%u) is smaller than the original %Xh (%u)", newSize, newSize, oldSize, oldSize), index);
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return U_INVALID_IMAGE;
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}
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// Build successful, append header and tail
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intelImage = model->header(index) + intelImage + model->tail(index);
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return U_SUCCESS;
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}
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msg(UString("buildIntelImage: unexpected action " + actionTypeToUString(model->action(index))), index);
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildRawArea(const UModelIndex & index, UByteArray & rawArea)
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{
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// Sanity check
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if (!index.isValid())
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return U_INVALID_PARAMETER;
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// No action required
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if (model->action(index) == Actions::NoAction) {
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rawArea = model->header(index) + model->body(index) + model->tail(index);
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return U_SUCCESS;
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}
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// Remove
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else if (model->action(index) == Actions::Remove) {
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rawArea.clear();
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return U_SUCCESS;
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}
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// Rebuild or Replace
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else if (model->action(index) == Actions::Rebuild
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|| model->action(index) == Actions::Replace) {
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// Rebuild if there is at least 1 child
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if (model->rowCount(index)) {
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// Clear the supplied UByteArray
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rawArea.clear();
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// Build children
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for (int i = 0; i < model->rowCount(index); i++) {
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USTATUS result = U_SUCCESS;
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UModelIndex currentChild = index.child(i, 0);
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UByteArray currentData;
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// Check child type
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if (model->type(currentChild) == Types::Volume) {
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result = buildVolume(currentChild, currentData);
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}
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else if (model->type(currentChild) == Types::Padding) {
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result = buildPadding(currentChild, currentData);
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}
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else {
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msg(UString("buildRawArea: unexpected item type ") + itemTypeToUString(model->type(currentChild)), currentChild);
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return U_UNKNOWN_ITEM_TYPE;
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}
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// Check build result
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if (result) {
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msg(UString("buildRawArea: building of ") + model->name(currentChild) + UString(" failed with error ") + errorCodeToUString(result), currentChild);
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return result;
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}
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// Append current data
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rawArea += currentData;
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}
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// Check size of new raw area, it must be same as original one
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UINT32 newSize = rawArea.size();
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UINT32 oldSize = model->body(index).size();
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if (newSize > oldSize) {
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msg(usprintf("buildRawArea: new area size %Xh (%u) is bigger than the original %Xh (%u)", newSize, newSize, oldSize, oldSize), index);
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return U_INVALID_RAW_AREA;
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}
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else if (newSize < oldSize) {
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msg(usprintf("buildRawArea: new area size %Xh (%u) is smaller than the original %Xh (%u)", newSize, newSize, oldSize, oldSize), index);
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return U_INVALID_RAW_AREA;
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}
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}
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// No need to rebuild a raw area with no children
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else {
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rawArea = model->body(index);
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}
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// Build successful, add header if needed
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rawArea = model->header(index) + rawArea + model->tail(index);
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return U_SUCCESS;
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}
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msg(UString("buildRawArea: unexpected action " + actionTypeToUString(model->action(index))), index);
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildPadding(const UModelIndex & index, UByteArray & padding)
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{
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// Sanity check
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if (!index.isValid())
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return U_INVALID_PARAMETER;
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// No action required
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if (model->action(index) == Actions::NoAction) {
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padding = model->header(index) + model->body(index) + model->tail(index);
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return U_SUCCESS;
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}
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// Remove
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else if (model->action(index) == Actions::Remove) {
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padding.clear();
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return U_SUCCESS;
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}
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// Erase
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else if (model->action(index) == Actions::Erase) {
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return erase(index, padding);
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}
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msg(UString("buildPadding: unexpected action " + actionTypeToUString(model->action(index))), index);
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildNonUefiData(const UModelIndex & index, UByteArray & data)
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{
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// Sanity check
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if (!index.isValid())
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return U_INVALID_PARAMETER;
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// No action required
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if (model->action(index) == Actions::NoAction) {
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data = model->header(index) + model->body(index) + model->tail(index);
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return U_SUCCESS;
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}
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// Remove
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else if (model->action(index) == Actions::Remove) {
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data.clear();
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return U_SUCCESS;
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}
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// Erase
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else if (model->action(index) == Actions::Erase) {
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return erase(index, data);
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}
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// TODO: rebuild properly
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msg(UString("buildNoUefiData: unexpected action " + actionTypeToUString(model->action(index))), index);
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildFreeSpace(const UModelIndex & index, UByteArray & freeSpace)
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{
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// Sanity check
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if (!index.isValid())
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return U_INVALID_PARAMETER;
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// No actions possible for free space
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freeSpace = model->header(index) + model->body(index) + model->tail(index);
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return U_SUCCESS;
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}
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USTATUS FfsBuilder::buildVolume(const UModelIndex & index, UByteArray & volume)
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{
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U_UNUSED_PARAMETER(index);
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U_UNUSED_PARAMETER(volume);
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildPadFile(const UModelIndex & index, UByteArray & padFile)
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{
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U_UNUSED_PARAMETER(index);
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U_UNUSED_PARAMETER(padFile);
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildFile(const UModelIndex & index, UByteArray & file)
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{
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U_UNUSED_PARAMETER(index);
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U_UNUSED_PARAMETER(file);
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return U_NOT_IMPLEMENTED;
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}
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USTATUS FfsBuilder::buildSection(const UModelIndex & index, UByteArray & section)
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{
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U_UNUSED_PARAMETER(index);
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U_UNUSED_PARAMETER(section);
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return U_NOT_IMPLEMENTED;
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}
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