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Implement Mac Image parsing support

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This commit is contained in:
vit9696 2019-08-17 13:22:32 +03:00
parent 2e7aa8133a
commit a01d2c6003
5 changed files with 71 additions and 14 deletions
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37
common/ffsparser.cpp
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@ -133,6 +133,12 @@ USTATUS FfsParser::performFirstPass(const UByteArray & buffer, UModelIndex & ind
return result;
}
// Try parsing as Mac EFI
result = parseMacImage(buffer, 0, UModelIndex(), index);;
if (result != U_ITEM_NOT_FOUND) {
return result;
}
// Try parsing as Intel image
result = parseIntelImage(buffer, 0, UModelIndex(), index);
if (result != U_ITEM_NOT_FOUND) {
@ -300,6 +306,37 @@ USTATUS FfsParser::parseCapsule(const UByteArray & capsule, const UINT32 localOf
return U_ITEM_NOT_FOUND;
}
USTATUS FfsParser::parseMacImage(const UByteArray & macImage, const UINT32 localOffset, const UModelIndex & parent, UModelIndex & index)
{
// Check buffer size to be more than or equal to size of MAC_IMAGE_HEADER
if ((UINT32)macImage.size() < sizeof(MAC_IMAGE_HEADER)) {
return U_ITEM_NOT_FOUND;
}
// Check buffer for being normal Mac Image header
if (macImage.startsWith(MAC_IMAGE_MAGIC)) {
UByteArray header = macImage.left(sizeof(MAC_IMAGE_HEADER));
UByteArray body = macImage.mid(sizeof(MAC_IMAGE_HEADER));
UString name("Mac image");
// Add tree item
index = model->addItem(localOffset, Types::MacImage, Subtypes::MacGenericImage, name, UString(), UString(), header, body, UByteArray(), Fixed, parent);
UModelIndex imageIndex;
// Try parsing as Intel image
USTATUS result = parseIntelImage(body, sizeof(MAC_IMAGE_HEADER), index, imageIndex);
if (result != U_ITEM_NOT_FOUND) {
return result;
}
// Parse as generic image
return parseGenericImage(body, sizeof(MAC_IMAGE_HEADER), index, imageIndex);
}
return U_ITEM_NOT_FOUND;
}
USTATUS FfsParser::parseIntelImage(const UByteArray & intelImage, const UINT32 localOffset, const UModelIndex & parent, UModelIndex & index)
{
// Check for buffer size to be greater or equal to descriptor region size