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Change PfsProcess to use FsProcess and VirtualFileSystem

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This commit is contained in:
jakcron 2021-10-02 22:57:35 +08:00
parent 7a9ef48a38
commit 649bfb1f11
2 changed files with 27 additions and 85 deletions
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100
src/PfsProcess.cpp
View file

@ -4,17 +4,21 @@
#include <nn/hac/PartitionFsUtil.h>
#include <tc/io/LocalStorage.h>
#include "FsProcess.h"
#include <tc/io/VirtualFileSystem.h>
#include <nn/hac/PartitionFsMetaGenerator.h>
nstool::PfsProcess::PfsProcess() :
mModuleName("nstool::PfsProcess"),
mFile(),
mCliOutputMode(true, false, false, false),
mVerify(false),
mExtractPath(),
mMountName(),
mListFs(false),
mPfs()
mPfs(),
mFileSystem(),
mFsProcess()
{
mFsProcess.setFsLabel("PartitionFS");
}
void nstool::PfsProcess::process()
@ -24,13 +28,9 @@ void nstool::PfsProcess::process()
if (mCliOutputMode.show_basic_info)
{
displayHeader();
if (mListFs || mCliOutputMode.show_extended_info)
displayFs();
}
if (mPfs.getFsType() == mPfs.TYPE_HFS0 && mVerify)
validateHfs();
if (mExtractPath.isSet())
extractFs();
mFsProcess.process();
}
void nstool::PfsProcess::setInputFile(const std::shared_ptr<tc::io::IStream>& file)
@ -50,17 +50,17 @@ void nstool::PfsProcess::setVerifyMode(bool verify)
void nstool::PfsProcess::setMountPointName(const std::string& mount_name)
{
mMountName = mount_name;
mFsProcess.setFsLabel(mount_name);
}
void nstool::PfsProcess::setExtractPath(const tc::io::Path& path)
{
mExtractPath = path;
mFsProcess.setExtractPath(path);
}
void nstool::PfsProcess::setListFs(bool list_fs)
{
mListFs = list_fs;
mFsProcess.setCliOutputMode(list_fs);
}
const nn::hac::PartitionFsHeader& nstool::PfsProcess::getPfsHeader() const
@ -68,6 +68,11 @@ const nn::hac::PartitionFsHeader& nstool::PfsProcess::getPfsHeader() const
return mPfs;
}
const std::shared_ptr<tc::io::IStorage>& nstool::PfsProcess::getFileSystem() const
{
return mFileSystem;
}
void nstool::PfsProcess::importHeader()
{
if (mFile == nullptr)
@ -104,6 +109,10 @@ void nstool::PfsProcess::importHeader()
// process PFS
mPfs.fromBytes(scratch.data(), scratch.size());
// create virtual filesystem
mFileSystem = std::make_shared<tc::io::VirtualFileSystem>(tc::io::VirtualFileSystem(nn::hac::PartitionFsMetaGenerator(mFile, mVerify ? nn::hac::PartitionFsMetaGenerator::ValidationMode_Warn : nn::hac::PartitionFsMetaGenerator::ValidationMode_None)));
mFsProcess.setInputFileSystem(mFileSystem);
}
void nstool::PfsProcess::displayHeader()
@ -111,36 +120,6 @@ void nstool::PfsProcess::displayHeader()
fmt::print("[PartitionFS]\n");
fmt::print(" Type: {:s}\n", nn::hac::PartitionFsUtil::getFsTypeAsString(mPfs.getFsType()));
fmt::print(" FileNum: {:d}\n", mPfs.getFileList().size());
if (mMountName.empty() == false)
{
fmt::print(" MountPoint: {:s}");
if (mMountName.at(mMountName.length()-1) != '/')
fmt::print("/");
fmt::print("\n");
}
}
void nstool::PfsProcess::displayFs()
{
auto file_list = mPfs.getFileList();
for (auto itr = file_list.begin(); itr != file_list.end(); itr++)
{
fmt::print(" {:s}", itr->name);
if (mCliOutputMode.show_layout)
{
switch (mPfs.getFsType())
{
case (nn::hac::PartitionFsHeader::TYPE_PFS0):
fmt::print(" (offset=0x{:x}, size=0x{:x})", itr->offset, itr->size);
break;
case (nn::hac::PartitionFsHeader::TYPE_HFS0):
fmt::print(" (offset=0x{:x}, size=0x{:x}, hash_protected_size=0x{:x})", itr->offset, itr->size, itr->hash_protected_size);
break;
}
}
fmt::print("\n");
}
}
size_t nstool::PfsProcess::determineHeaderSize(const nn::hac::sPfsHeader* hdr)
@ -157,39 +136,4 @@ size_t nstool::PfsProcess::determineHeaderSize(const nn::hac::sPfsHeader* hdr)
bool nstool::PfsProcess::validateHeaderMagic(const nn::hac::sPfsHeader* hdr)
{
return hdr->st_magic.unwrap() == nn::hac::pfs::kPfsStructMagic || hdr->st_magic.unwrap() == nn::hac::pfs::kHashedPfsStructMagic;
}
void nstool::PfsProcess::validateHfs()
{
nn::hac::detail::sha256_hash_t hash;
auto file_list = mPfs.getFileList();
for (auto itr = file_list.begin(); itr != file_list.end(); itr++)
{
tc::ByteData cache = tc::ByteData(tc::io::IOUtil::castInt64ToSize(itr->hash_protected_size));
mFile->seek(itr->offset, tc::io::SeekOrigin::Begin);
mFile->read(cache.data(), cache.size());
tc::crypto::GenerateSha256Hash(hash.data(), cache.data(), cache.size());
if (hash != itr->hash)
{
fmt::print("[WARNING] HFS0 {:s}{:s}{:s}: FAIL (bad hash)\n", !mMountName.empty()? mMountName.c_str() : "", (!mMountName.empty() && mMountName.at(mMountName.length()-1) != '/' )? "/" : "", itr->name);
}
}
}
void nstool::PfsProcess::extractFs()
{
// create extract directory
tc::io::LocalStorage fs;
fs.createDirectory(mExtractPath.get());
// extract files
tc::ByteData cache_for_extract = tc::ByteData(kCacheSize);
auto file_list = mPfs.getFileList();
for (auto itr = file_list.begin(); itr != file_list.end(); itr++)
{
tc::io::Path extract_path = mExtractPath.get() + itr->name;
writeSubStreamToFile(mFile, itr->offset, itr->size, extract_path, cache_for_extract);
}
}

12
src/PfsProcess.h
View file

@ -1,5 +1,6 @@
#pragma once
#include "types.h"
#include "FsProcess.h"
#include <nn/hac/PartitionFsHeader.h>
@ -23,6 +24,7 @@ public:
void setListFs(bool list_fs);
const nn::hac::PartitionFsHeader& getPfsHeader() const;
const std::shared_ptr<tc::io::IStorage>& getFileSystem() const;
private:
static const size_t kCacheSize = 0x10000;
@ -33,19 +35,15 @@ private:
CliOutputMode mCliOutputMode;
bool mVerify;
tc::Optional<tc::io::Path> mExtractPath;
std::string mMountName;
bool mListFs;
nn::hac::PartitionFsHeader mPfs;
std::shared_ptr<tc::io::IStorage> mFileSystem;
FsProcess mFsProcess;
void importHeader();
void displayHeader();
void displayFs();
size_t determineHeaderSize(const nn::hac::sPfsHeader* hdr);
bool validateHeaderMagic(const nn::hac::sPfsHeader* hdr);
void validateHfs();
void extractFs();
};
}