mirror of
https://github.com/jakcron/nstool
synced 2024-11-22 21:49:30 +00:00
285 lines
No EOL
9.9 KiB
C++
285 lines
No EOL
9.9 KiB
C++
#include "NsoProcess.h"
|
|
|
|
#include <lz4.h>
|
|
|
|
nstool::NsoProcess::NsoProcess() :
|
|
mModuleName("nstool::NsoProcess"),
|
|
mFile(),
|
|
mCliOutputMode(true, false, false, false),
|
|
mVerify(false),
|
|
mIs64BitInstruction(true),
|
|
mListApi(false),
|
|
mListSymbols(false)
|
|
{
|
|
}
|
|
|
|
void nstool::NsoProcess::process()
|
|
{
|
|
importHeader();
|
|
importCodeSegments();
|
|
if (mCliOutputMode.show_basic_info)
|
|
displayNsoHeader();
|
|
|
|
processRoMeta();
|
|
}
|
|
|
|
void nstool::NsoProcess::setInputFile(const std::shared_ptr<tc::io::IStream>& file)
|
|
{
|
|
mFile = file;
|
|
}
|
|
|
|
void nstool::NsoProcess::setCliOutputMode(CliOutputMode type)
|
|
{
|
|
mCliOutputMode = type;
|
|
}
|
|
|
|
void nstool::NsoProcess::setVerifyMode(bool verify)
|
|
{
|
|
mVerify = verify;
|
|
}
|
|
|
|
void nstool::NsoProcess::setIs64BitInstruction(bool flag)
|
|
{
|
|
mRoMeta.setIs64BitInstruction(flag);
|
|
}
|
|
|
|
void nstool::NsoProcess::setListApi(bool listApi)
|
|
{
|
|
mRoMeta.setListApi(listApi);
|
|
}
|
|
|
|
void nstool::NsoProcess::setListSymbols(bool listSymbols)
|
|
{
|
|
mRoMeta.setListSymbols(listSymbols);
|
|
}
|
|
|
|
const nstool::RoMetadataProcess& nstool::NsoProcess::getRoMetadataProcess() const
|
|
{
|
|
return mRoMeta;
|
|
}
|
|
|
|
void nstool::NsoProcess::importHeader()
|
|
{
|
|
if (mFile == nullptr)
|
|
{
|
|
throw tc::Exception(mModuleName, "No file reader set.");
|
|
}
|
|
if (mFile->canRead() == false || mFile->canSeek() == false)
|
|
{
|
|
throw tc::NotSupportedException(mModuleName, "Input stream requires read/seek permissions.");
|
|
}
|
|
|
|
// check if file_size is smaller than NSO header size
|
|
size_t file_size = tc::io::IOUtil::castInt64ToSize(mFile->length());
|
|
if (file_size < sizeof(pie::hac::sNsoHeader))
|
|
{
|
|
throw tc::Exception(mModuleName, "Corrupt NSO: file too small.");
|
|
}
|
|
|
|
// read nso
|
|
tc::ByteData scratch = tc::ByteData(sizeof(pie::hac::sNsoHeader));
|
|
mFile->seek(0, tc::io::SeekOrigin::Begin);
|
|
mFile->read(scratch.data(), scratch.size());
|
|
|
|
// parse nso header
|
|
mHdr.fromBytes(scratch.data(), scratch.size());
|
|
}
|
|
|
|
void nstool::NsoProcess::importCodeSegments()
|
|
{
|
|
tc::ByteData scratch;
|
|
pie::hac::detail::sha256_hash_t calc_hash;
|
|
|
|
// process text segment
|
|
if (mHdr.getTextSegmentInfo().is_compressed)
|
|
{
|
|
// allocate/read compressed text
|
|
scratch = tc::ByteData(mHdr.getTextSegmentInfo().file_layout.size);
|
|
mFile->seek(mHdr.getTextSegmentInfo().file_layout.offset, tc::io::SeekOrigin::Begin);
|
|
mFile->read(scratch.data(), scratch.size());
|
|
|
|
// allocate for decompressed text segment
|
|
mTextBlob = tc::ByteData(mHdr.getTextSegmentInfo().memory_layout.size);
|
|
|
|
// decompress text segment
|
|
if (decompressData(scratch.data(), scratch.size(), mTextBlob.data(), mTextBlob.size()) != mTextBlob.size())
|
|
{
|
|
throw tc::Exception(mModuleName, "NSO text segment failed to decompress");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// read text segment directly (not compressed)
|
|
mTextBlob = tc::ByteData(mHdr.getTextSegmentInfo().file_layout.size);
|
|
mFile->seek(mHdr.getTextSegmentInfo().file_layout.offset, tc::io::SeekOrigin::Begin);
|
|
mFile->read(mTextBlob.data(), mTextBlob.size());
|
|
}
|
|
if (mHdr.getTextSegmentInfo().is_hashed)
|
|
{
|
|
tc::crypto::GenerateSha256Hash(calc_hash.data(), mTextBlob.data(), mTextBlob.size());
|
|
if (calc_hash != mHdr.getTextSegmentInfo().hash)
|
|
{
|
|
throw tc::Exception(mModuleName, "NSO text segment failed SHA256 verification");
|
|
}
|
|
}
|
|
|
|
// process ro segment
|
|
if (mHdr.getRoSegmentInfo().is_compressed)
|
|
{
|
|
// allocate/read compressed ro segment
|
|
scratch = tc::ByteData(mHdr.getRoSegmentInfo().file_layout.size);
|
|
mFile->seek(mHdr.getRoSegmentInfo().file_layout.offset, tc::io::SeekOrigin::Begin);
|
|
mFile->read(scratch.data(), scratch.size());
|
|
|
|
// allocate for decompressed ro segment
|
|
mRoBlob = tc::ByteData(mHdr.getRoSegmentInfo().memory_layout.size);
|
|
|
|
// decompress ro segment
|
|
if (decompressData(scratch.data(), scratch.size(), mRoBlob.data(), mRoBlob.size()) != mRoBlob.size())
|
|
{
|
|
throw tc::Exception(mModuleName, "NSO ro segment failed to decompress");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// read ro segment directly (not compressed)
|
|
mRoBlob = tc::ByteData(mHdr.getRoSegmentInfo().file_layout.size);
|
|
mFile->seek(mHdr.getRoSegmentInfo().file_layout.offset, tc::io::SeekOrigin::Begin);
|
|
mFile->read(mRoBlob.data(), mRoBlob.size());
|
|
}
|
|
if (mHdr.getRoSegmentInfo().is_hashed)
|
|
{
|
|
tc::crypto::GenerateSha256Hash(calc_hash.data(), mRoBlob.data(), mRoBlob.size());
|
|
if (calc_hash != mHdr.getRoSegmentInfo().hash)
|
|
{
|
|
throw tc::Exception(mModuleName, "NSO ro segment failed SHA256 verification");
|
|
}
|
|
}
|
|
|
|
// process ro segment
|
|
if (mHdr.getDataSegmentInfo().is_compressed)
|
|
{
|
|
// allocate/read compressed ro segment
|
|
scratch = tc::ByteData(mHdr.getDataSegmentInfo().file_layout.size);
|
|
mFile->seek(mHdr.getDataSegmentInfo().file_layout.offset, tc::io::SeekOrigin::Begin);
|
|
mFile->read(scratch.data(), scratch.size());
|
|
|
|
// allocate for decompressed ro segment
|
|
mDataBlob = tc::ByteData(mHdr.getDataSegmentInfo().memory_layout.size);
|
|
|
|
// decompress ro segment
|
|
if (decompressData(scratch.data(), scratch.size(), mDataBlob.data(), mDataBlob.size()) != mDataBlob.size())
|
|
{
|
|
throw tc::Exception(mModuleName, "NSO data segment failed to decompress");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// read ro segment directly (not compressed)
|
|
mDataBlob = tc::ByteData(mHdr.getDataSegmentInfo().file_layout.size);
|
|
mFile->seek(mHdr.getDataSegmentInfo().file_layout.offset, tc::io::SeekOrigin::Begin);
|
|
mFile->read(mDataBlob.data(), mDataBlob.size());
|
|
}
|
|
if (mHdr.getDataSegmentInfo().is_hashed)
|
|
{
|
|
tc::crypto::GenerateSha256Hash(calc_hash.data(), mDataBlob.data(), mDataBlob.size());
|
|
if (calc_hash != mHdr.getDataSegmentInfo().hash)
|
|
{
|
|
throw tc::Exception(mModuleName, "NSO data segment failed SHA256 verification");
|
|
}
|
|
}
|
|
}
|
|
|
|
void nstool::NsoProcess::displayNsoHeader()
|
|
{
|
|
fmt::print("[NSO Header]\n");
|
|
fmt::print(" ModuleId: {:s}\n", tc::cli::FormatUtil::formatBytesAsString(mHdr.getModuleId().data(), mHdr.getModuleId().size(), false, ""));
|
|
if (mCliOutputMode.show_layout)
|
|
{
|
|
fmt::print(" Program Segments:\n");
|
|
fmt::print(" .module_name:\n");
|
|
fmt::print(" FileOffset: 0x{:x}\n", mHdr.getModuleNameInfo().offset);
|
|
fmt::print(" FileSize: 0x{:x}\n", mHdr.getModuleNameInfo().size);
|
|
fmt::print(" .text:\n");
|
|
fmt::print(" FileOffset: 0x{:x}\n", mHdr.getTextSegmentInfo().file_layout.offset);
|
|
fmt::print(" FileSize: 0x{:x}{:s}\n", mHdr.getTextSegmentInfo().file_layout.size, (mHdr.getTextSegmentInfo().is_compressed? " (COMPRESSED)" : ""));
|
|
fmt::print(" .ro:\n");
|
|
fmt::print(" FileOffset: 0x{:x}\n", mHdr.getRoSegmentInfo().file_layout.offset);
|
|
fmt::print(" FileSize: 0x{:x}{:s}\n", mHdr.getRoSegmentInfo().file_layout.size, (mHdr.getRoSegmentInfo().is_compressed? " (COMPRESSED)" : ""));
|
|
fmt::print(" .data:\n");
|
|
fmt::print(" FileOffset: 0x{:x}\n", mHdr.getDataSegmentInfo().file_layout.offset);
|
|
fmt::print(" FileSize: 0x{:x}{:s}\n", mHdr.getDataSegmentInfo().file_layout.size, (mHdr.getDataSegmentInfo().is_compressed? " (COMPRESSED)" : ""));
|
|
}
|
|
fmt::print(" Program Sections:\n");
|
|
fmt::print(" .text:\n");
|
|
fmt::print(" MemoryOffset: 0x{:x}\n", mHdr.getTextSegmentInfo().memory_layout.offset);
|
|
fmt::print(" MemorySize: 0x{:x}\n", mHdr.getTextSegmentInfo().memory_layout.size);
|
|
if (mHdr.getTextSegmentInfo().is_hashed && mCliOutputMode.show_extended_info)
|
|
{
|
|
fmt::print(" Hash: {:s}\n", tc::cli::FormatUtil::formatBytesAsString(mHdr.getTextSegmentInfo().hash.data(), mHdr.getTextSegmentInfo().hash.size(), false, ""));
|
|
}
|
|
fmt::print(" .ro:\n");
|
|
fmt::print(" MemoryOffset: 0x{:x}\n", mHdr.getRoSegmentInfo().memory_layout.offset);
|
|
fmt::print(" MemorySize: 0x{:x}\n", mHdr.getRoSegmentInfo().memory_layout.size);
|
|
if (mHdr.getRoSegmentInfo().is_hashed && mCliOutputMode.show_extended_info)
|
|
{
|
|
fmt::print(" Hash: {:s}\n", tc::cli::FormatUtil::formatBytesAsString(mHdr.getRoSegmentInfo().hash.data(), mHdr.getRoSegmentInfo().hash.size(), false, ""));
|
|
}
|
|
if (mCliOutputMode.show_extended_info)
|
|
{
|
|
fmt::print(" .api_info:\n");
|
|
fmt::print(" MemoryOffset: 0x{:x}\n", mHdr.getRoEmbeddedInfo().offset);
|
|
fmt::print(" MemorySize: 0x{:x}\n", mHdr.getRoEmbeddedInfo().size);
|
|
fmt::print(" .dynstr:\n");
|
|
fmt::print(" MemoryOffset: 0x{:x}\n", mHdr.getRoDynStrInfo().offset);
|
|
fmt::print(" MemorySize: 0x{:x}\n", mHdr.getRoDynStrInfo().size);
|
|
fmt::print(" .dynsym:\n");
|
|
fmt::print(" MemoryOffset: 0x{:x}\n", mHdr.getRoDynSymInfo().offset);
|
|
fmt::print(" MemorySize: 0x{:x}\n", mHdr.getRoDynSymInfo().size);
|
|
}
|
|
|
|
fmt::print(" .data:\n");
|
|
fmt::print(" MemoryOffset: 0x{:x}\n", mHdr.getDataSegmentInfo().memory_layout.offset);
|
|
fmt::print(" MemorySize: 0x{:x}\n", mHdr.getDataSegmentInfo().memory_layout.size);
|
|
if (mHdr.getDataSegmentInfo().is_hashed && mCliOutputMode.show_extended_info)
|
|
{
|
|
fmt::print(" Hash: {:s}\n", tc::cli::FormatUtil::formatBytesAsString(mHdr.getDataSegmentInfo().hash.data(), mHdr.getDataSegmentInfo().hash.size(), false, ""));
|
|
}
|
|
fmt::print(" .bss:\n");
|
|
fmt::print(" MemorySize: 0x{:x}\n", mHdr.getBssSize());
|
|
}
|
|
|
|
void nstool::NsoProcess::processRoMeta()
|
|
{
|
|
if (mRoBlob.size())
|
|
{
|
|
// setup ro metadata
|
|
mRoMeta.setApiInfo(mHdr.getRoEmbeddedInfo().offset, mHdr.getRoEmbeddedInfo().size);
|
|
mRoMeta.setDynSym(mHdr.getRoDynSymInfo().offset, mHdr.getRoDynSymInfo().size);
|
|
mRoMeta.setDynStr(mHdr.getRoDynStrInfo().offset, mHdr.getRoDynStrInfo().size);
|
|
mRoMeta.setRoBinary(mRoBlob);
|
|
mRoMeta.setCliOutputMode(mCliOutputMode);
|
|
mRoMeta.process();
|
|
}
|
|
}
|
|
|
|
size_t nstool::NsoProcess::decompressData(const byte_t* src, size_t src_len, byte_t* dst, size_t dst_capacity)
|
|
{
|
|
if (src_len >= LZ4_MAX_INPUT_SIZE)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int32_t src_len_input = int32_t(src_len);
|
|
int32_t dst_capcacity_input = (dst_capacity < LZ4_MAX_INPUT_SIZE) ? int32_t(dst_capacity) : LZ4_MAX_INPUT_SIZE;
|
|
|
|
int32_t decomp_size = LZ4_decompress_safe((const char*)src, (char*)dst, src_len_input, dst_capcacity_input);
|
|
|
|
if (decomp_size < 0)
|
|
{
|
|
memset(dst, 0, dst_capacity);
|
|
return 0;
|
|
}
|
|
|
|
return size_t(decomp_size);
|
|
} |