mirror of
https://github.com/LongSoft/UEFITool.git
synced 2024-11-21 23:48:22 +08:00
Version 0.2.1
Added checks for files with invalid size
This commit is contained in:
Nikolaj Schlej
parent
4afe74850d
commit
05f1becfe6
@ -70,6 +70,7 @@ typedef uint16_t CHAR16;
|
||||
#define ERR_INVALID_VOLUME 11
|
||||
#define ERR_VOLUME_REVISION_NOT_SUPPORTED 12
|
||||
#define ERR_UNKNOWN_FFS 13
|
||||
#define ERR_INVALID_FILE 14
|
||||
|
||||
|
||||
// EFI GUID
|
||||
|
||||
10
ffs.cpp
10
ffs.cpp
@ -17,7 +17,10 @@ const UINT8 ffsAlignmentTable[] =
|
||||
|
||||
UINT8 calculateChecksum8(UINT8* buffer, UINT32 bufferSize)
|
||||
{
|
||||
UINT8 counter = 0;
|
||||
if(!buffer)
|
||||
return 0;
|
||||
|
||||
UINT8 counter = 0;
|
||||
while(bufferSize--)
|
||||
counter += buffer[bufferSize];
|
||||
return ~counter + 1;
|
||||
@ -25,7 +28,10 @@ UINT8 calculateChecksum8(UINT8* buffer, UINT32 bufferSize)
|
||||
|
||||
UINT16 calculateChecksum16(UINT8* buffer, UINT32 bufferSize)
|
||||
{
|
||||
UINT16 counter = 0;
|
||||
if(!buffer)
|
||||
return 0;
|
||||
|
||||
UINT16 counter = 0;
|
||||
while(bufferSize--)
|
||||
counter += buffer[bufferSize];
|
||||
return ~counter + 1;
|
||||
|
||||
73
uefitool.cpp
73
uefitool.cpp
@ -561,6 +561,13 @@ UINT8 UEFITool::parseVolume(const QByteArray & volume, UINT32 volumeBase, UINT8
|
||||
QByteArray file = volume.mid(fileIndex, uint24ToUint32(fileHeader->Size));
|
||||
QByteArray header = file.left(sizeof(EFI_FFS_FILE_HEADER));
|
||||
|
||||
// Check file size to at least sizeof(EFI_FFS_FILE_HEADER)
|
||||
if (file.size() < sizeof(EFI_FFS_FILE_HEADER))
|
||||
{
|
||||
debug(tr("File with invalid size"));
|
||||
return ERR_INVALID_FILE;
|
||||
}
|
||||
|
||||
// We are at empty space in the end of volume
|
||||
if (header.count(empty) == header.size()) {
|
||||
QByteArray body = volume.right(volume.size() - fileIndex);
|
||||
@ -736,7 +743,6 @@ UINT8 UEFITool::parseFile(const QByteArray & file, UINT8 revision, bool erasePol
|
||||
UINT32 dataSize;
|
||||
QModelIndex index;
|
||||
UINT32 result;
|
||||
bool lzmaHeaderFound;
|
||||
|
||||
switch (sectionHeader->Type)
|
||||
{
|
||||
@ -796,55 +802,26 @@ UINT8 UEFITool::parseFile(const QByteArray & file, UINT8 revision, bool erasePol
|
||||
if (LzmaGetInfo(data, dataSize, &decompressedSize) != ERR_SUCCESS
|
||||
|| decompressedSize != compressedSectionHeader->UncompressedLength)
|
||||
{
|
||||
// Shitty file with some data between COMPRESSED_SECTION_HEADER and LZMA_HEADER
|
||||
// Search for LZMA header in body
|
||||
// Header structure: UINT8 LzmaProperties | UINT32 DictionarySize | UINT64 DecompressedSize
|
||||
// We can't determine first two fiels here, but Decompressed size is known, so search for it
|
||||
INT32 lzmaHeaderIndex = body.indexOf(QByteArray((const char*)&compressedSectionHeader->UncompressedLength,
|
||||
sizeof(compressedSectionHeader->UncompressedLength)).append('\x00').append('\x00').append('\x00').append('\x00'));
|
||||
lzmaHeaderIndex -= LZMA_PROPS_SIZE;
|
||||
// LZMA header not found
|
||||
if (lzmaHeaderIndex < 0)
|
||||
{
|
||||
lzmaHeaderFound = false;
|
||||
debug(tr("Lzma header not found"));
|
||||
}
|
||||
// LZMA header found
|
||||
else if (lzmaHeaderIndex) {
|
||||
data = (VOID*) (file.constData() + sectionIndex + sizeof(EFI_COMPRESSION_SECTION) + lzmaHeaderIndex);
|
||||
dataSize = uint24ToUint32(sectionHeader->Size) - sizeof(EFI_COMPRESSION_SECTION) - lzmaHeaderIndex;
|
||||
// Get buffer sizes again
|
||||
if (LzmaGetInfo(data, dataSize, &decompressedSize) != ERR_SUCCESS
|
||||
|| decompressedSize != compressedSectionHeader->UncompressedLength)
|
||||
{
|
||||
debug(tr("LzmaGetInfo failed on LZMA header"));
|
||||
lzmaHeaderFound = false;
|
||||
}
|
||||
else
|
||||
debug(tr("Padding of size %1 between CompressedSectionHeader and LzmaHeader")
|
||||
.arg(lzmaHeaderIndex));
|
||||
}
|
||||
lzmaHeaderFound = true;
|
||||
// Shitty file with a section header between COMPRESSED_SECTION_HEADER and LZMA_HEADER
|
||||
data = (VOID*) (file.constData() + sectionIndex + sizeof(EFI_COMPRESSION_SECTION) + sizeof(EFI_COMMON_SECTION_HEADER));
|
||||
dataSize = uint24ToUint32(sectionHeader->Size) - sizeof(EFI_COMPRESSION_SECTION) - sizeof(EFI_COMMON_SECTION_HEADER);
|
||||
if (LzmaGetInfo(data, dataSize, &decompressedSize) != ERR_SUCCESS)
|
||||
debug(tr("LzmaGetInfo failed"));
|
||||
}
|
||||
else
|
||||
lzmaHeaderFound = true;
|
||||
// Decompress if header is found
|
||||
if (lzmaHeaderFound) {
|
||||
decompressed = new UINT8[decompressedSize];
|
||||
// Decompress section data
|
||||
if (LzmaDecompress(data, dataSize, decompressed) != ERR_SUCCESS)
|
||||
debug(tr("LzmaDecompress failed"));
|
||||
else
|
||||
{
|
||||
body = QByteArray::fromRawData((const char*) decompressed, decompressedSize);
|
||||
// Parse stored file
|
||||
result = parseFile(body, revision, erasePolarity, index);
|
||||
if (result)
|
||||
debug(tr("Compressed section with LZMA compression can not be parsed as file (%1)").arg(result));
|
||||
}
|
||||
decompressed = new UINT8[decompressedSize];
|
||||
// Decompress section data
|
||||
if (LzmaDecompress(data, dataSize, decompressed) != ERR_SUCCESS)
|
||||
debug(tr("LzmaDecompress failed"));
|
||||
else
|
||||
{
|
||||
body = QByteArray::fromRawData((const char*) decompressed, decompressedSize);
|
||||
// Parse stored file
|
||||
result = parseFile(body, revision, erasePolarity, index);
|
||||
if (result)
|
||||
debug(tr("Compressed section with LZMA compression can not be parsed as file (%1)").arg(result));
|
||||
}
|
||||
|
||||
delete[] decompressed;
|
||||
}
|
||||
delete[] decompressed;
|
||||
break;
|
||||
default:
|
||||
body = file.mid(sectionIndex + sizeof(EFI_COMPRESSION_SECTION), sectionSize - sizeof(EFI_COMPRESSION_SECTION));
|
||||
|
||||
65
uefitool.pro
65
uefitool.pro
@ -1,34 +1,33 @@
|
||||
QT += core gui
|
||||
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
|
||||
|
||||
TARGET = UEFITool
|
||||
TEMPLATE = app
|
||||
|
||||
SOURCES += main.cpp \
|
||||
uefitool.cpp \
|
||||
descriptor.cpp \
|
||||
ffs.cpp \
|
||||
treeitem.cpp \
|
||||
treemodel.cpp \
|
||||
LZMA/LzmaCompress.c \
|
||||
LZMA/LzmaDecompress.c \
|
||||
LZMA/Sdk/C/LzFind.c \
|
||||
LZMA/Sdk/C/LzmaDec.c \
|
||||
LZMA/Sdk/C/LzmaEnc.c \
|
||||
Tiano/EfiTianoDecompress.c \
|
||||
Tiano/EfiCompress.c \
|
||||
Tiano/TianoCompress.c
|
||||
HEADERS += uefitool.h \
|
||||
basetypes.h \
|
||||
descriptor.h \
|
||||
ffs.h \
|
||||
treeitem.h \
|
||||
treemodel.h \
|
||||
LZMA/LzmaCompress.h \
|
||||
LZMA/LzmaDecompress.h \
|
||||
Tiano/EfiTianoDecompress.h \
|
||||
Tiano/EfiTianoCompress.h
|
||||
FORMS += uefitool.ui
|
||||
RC_FILE = uefitool.rc
|
||||
QT += core gui
|
||||
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
|
||||
|
||||
ICON = uefitool.icns
|
||||
TARGET = UEFITool
|
||||
TEMPLATE = app
|
||||
|
||||
SOURCES += main.cpp \
|
||||
uefitool.cpp \
|
||||
descriptor.cpp \
|
||||
ffs.cpp \
|
||||
treeitem.cpp \
|
||||
treemodel.cpp \
|
||||
LZMA/LzmaCompress.c \
|
||||
LZMA/LzmaDecompress.c \
|
||||
LZMA/Sdk/C/LzFind.c \
|
||||
LZMA/Sdk/C/LzmaDec.c \
|
||||
LZMA/Sdk/C/LzmaEnc.c \
|
||||
Tiano/EfiTianoDecompress.c \
|
||||
Tiano/EfiCompress.c \
|
||||
Tiano/TianoCompress.c
|
||||
HEADERS += uefitool.h \
|
||||
basetypes.h \
|
||||
descriptor.h \
|
||||
ffs.h \
|
||||
treeitem.h \
|
||||
treemodel.h \
|
||||
LZMA/LzmaCompress.h \
|
||||
LZMA/LzmaDecompress.h \
|
||||
Tiano/EfiTianoDecompress.h \
|
||||
Tiano/EfiTianoCompress.h
|
||||
FORMS += uefitool.ui
|
||||
RC_FILE = uefitool.rc
|
||||
ICON = uefitool.icns
|
||||
@ -20,7 +20,7 @@
|
||||
<bool>true</bool>
|
||||
</property>
|
||||
<property name="windowTitle">
|
||||
<string>UEFITool 0.2.0</string>
|
||||
<string>UEFITool 0.2.1</string>
|
||||
</property>
|
||||
<widget class="QWidget" name="centralWidget">
|
||||
<property name="sizePolicy">
|
||||
|
||||
Loading…
Reference in New Issue
Block a user