nstool/lib/libhac/source/ContentArchiveHeader.cpp
2018-10-27 15:06:33 +08:00

334 lines
9.1 KiB
C++

#include <nn/hac/ContentArchiveHeader.h>
nn::hac::ContentArchiveHeader::ContentArchiveHeader()
{
mRightsId.alloc(nca::kRightsIdLen);
mKeyArea.alloc(nca::kKeyAreaSize);
clear();
}
nn::hac::ContentArchiveHeader::ContentArchiveHeader(const ContentArchiveHeader & other) :
ContentArchiveHeader()
{
*this = other;
}
bool nn::hac::ContentArchiveHeader::operator==(const ContentArchiveHeader & other) const
{
return (mFormatVersion == other.mFormatVersion) \
&& (mDistributionType == other.mDistributionType) \
&& (mContentType == other.mContentType) \
&& (mKeyGeneration == other.mKeyGeneration) \
&& (mKaekIndex == other.mKaekIndex) \
&& (mContentSize == other.mContentSize) \
&& (mProgramId == other.mProgramId) \
&& (mContentIndex == other.mContentIndex) \
&& (mSdkAddonVersion == other.mSdkAddonVersion) \
&& (mRightsId == other.mRightsId) \
&& (mPartitionEntryList == other.mPartitionEntryList) \
&& (mKeyArea == other.mKeyArea);
}
bool nn::hac::ContentArchiveHeader::operator!=(const ContentArchiveHeader & other) const
{
return !(*this == other);
}
void nn::hac::ContentArchiveHeader::operator=(const ContentArchiveHeader & other)
{
mRawBinary = other.mRawBinary;
mDistributionType = other.mDistributionType;
mContentType = other.mContentType;
mKeyGeneration = other.mKeyGeneration;
mKaekIndex = other.mKaekIndex;
mContentSize = other.mContentSize;
mProgramId = other.mProgramId;
mContentIndex = other.mContentIndex;
mSdkAddonVersion = other.mSdkAddonVersion;
mRightsId = other.mRightsId;
mPartitionEntryList = other.mPartitionEntryList;
mKeyArea = other.mKeyArea;
}
void nn::hac::ContentArchiveHeader::toBytes()
{
mRawBinary.alloc(sizeof(sContentArchiveHeader));
sContentArchiveHeader* hdr = (sContentArchiveHeader*)mRawBinary.data();
// set header magic
switch(mFormatVersion)
{
case (nca::FORMAT_NCA2):
hdr->st_magic = nca::kNca2StructMagic;
break;
case (nca::FORMAT_NCA3):
hdr->st_magic = nca::kNca3StructMagic;
break;
default:
throw fnd::Exception(kModuleName, "Unsupported format version");
}
// set variables
hdr->distribution_type = mDistributionType;
hdr->content_type = mContentType;
if (mKeyGeneration > 2)
{
hdr->key_generation = 2;
hdr->key_generation_2 = mKeyGeneration;
}
else
{
hdr->key_generation = mKeyGeneration;
hdr->key_generation_2 = 0;
}
hdr->key_area_encryption_key_index = mKaekIndex;
hdr->content_size = mContentSize;
hdr->program_id = mProgramId;
hdr->content_index = mContentIndex;
hdr->sdk_addon_version = mSdkAddonVersion;
memcpy(hdr->rights_id, mRightsId.data(), nca::kRightsIdLen);
memcpy(hdr->key_area, mKeyArea.data(), nca::kKeyAreaSize);
for (size_t i = 0; i < mPartitionEntryList.size(); i++)
{
byte_t index = mPartitionEntryList[i].header_index;
if (index >= nca::kPartitionNum) continue;
hdr->partition_entry[index].start_blk = sizeToBlockNum(mPartitionEntryList[index].offset);
hdr->partition_entry[index].end_blk = (sizeToBlockNum(mPartitionEntryList[index].offset) + sizeToBlockNum(mPartitionEntryList[index].size));
hdr->partition_entry[index].enabled = true;
hdr->fs_header_hash[index] = mPartitionEntryList[i].fs_header_hash;
}
}
void nn::hac::ContentArchiveHeader::fromBytes(const byte_t * data, size_t len)
{
if (len < sizeof(sContentArchiveHeader))
{
throw fnd::Exception(kModuleName, "ContentArchive header size is too small");
}
clear();
mRawBinary.alloc(sizeof(sContentArchiveHeader));
memcpy(mRawBinary.data(), data, sizeof(sContentArchiveHeader));
sContentArchiveHeader* hdr = (sContentArchiveHeader*)mRawBinary.data();
// check magic
switch(hdr->st_magic.get())
{
case (nca::kNca2StructMagic) :
mFormatVersion = nca::FORMAT_NCA2;
break;
case (nca::kNca3StructMagic) :
mFormatVersion = nca::FORMAT_NCA3;
break;
throw fnd::Exception(kModuleName, "ContentArchive header corrupt (unrecognised header magic).");
}
// variables
mDistributionType = (nca::DistributionType)hdr->distribution_type;
mContentType = (nca::ContentType)hdr->content_type;
mKeyGeneration = _MAX(hdr->key_generation, hdr->key_generation_2);
mKaekIndex = hdr->key_area_encryption_key_index;
mContentSize = *hdr->content_size;
mProgramId = *hdr->program_id;
mContentIndex = *hdr->content_index;
mSdkAddonVersion = *hdr->sdk_addon_version;
memcpy(mRightsId.data(), hdr->rights_id, nca::kRightsIdLen);
memcpy(mKeyArea.data(), hdr->key_area, nca::kKeyAreaSize);
for (size_t i = 0; i < nca::kPartitionNum; i++)
{
if (hdr->partition_entry[i].enabled)
{
mPartitionEntryList.addElement({(byte_t)i, blockNumToSize(hdr->partition_entry[i].start_blk.get()), blockNumToSize(hdr->partition_entry[i].end_blk.get() - hdr->partition_entry[i].start_blk.get()), hdr->fs_header_hash[i] });
}
}
}
const fnd::Vec<byte_t>& nn::hac::ContentArchiveHeader::getBytes() const
{
return mRawBinary;
}
void nn::hac::ContentArchiveHeader::clear()
{
mFormatVersion = nca::FORMAT_NCA3;
mDistributionType = nca::DIST_DOWNLOAD;
mContentType = nca::TYPE_PROGRAM;
mKeyGeneration = 0;
mKaekIndex = 0;
mContentSize = 0;
mProgramId = 0;
mContentIndex = 0;
mSdkAddonVersion = 0;
memset(mRightsId.data(), 0, mRightsId.size());
mPartitionEntryList.clear();
memset(mKeyArea.data(), 0, mKeyArea.size());
}
byte_t nn::hac::ContentArchiveHeader::getFormatVersion() const
{
return mFormatVersion;
}
void nn::hac::ContentArchiveHeader::setFormatVersion(byte_t version)
{
mFormatVersion = version;
}
nn::hac::nca::DistributionType nn::hac::ContentArchiveHeader::getDistributionType() const
{
return mDistributionType;
}
void nn::hac::ContentArchiveHeader::setDistributionType(nca::DistributionType type)
{
mDistributionType = type;
}
nn::hac::nca::ContentType nn::hac::ContentArchiveHeader::getContentType() const
{
return mContentType;
}
void nn::hac::ContentArchiveHeader::setContentType(nca::ContentType type)
{
mContentType = type;
}
byte_t nn::hac::ContentArchiveHeader::getKeyGeneration() const
{
return mKeyGeneration;
}
void nn::hac::ContentArchiveHeader::setKeyGeneration(byte_t gen)
{
mKeyGeneration = gen;
}
byte_t nn::hac::ContentArchiveHeader::getKeyAreaEncryptionKeyIndex() const
{
return mKaekIndex;
}
void nn::hac::ContentArchiveHeader::setKeyAreaEncryptionKeyIndex(byte_t index)
{
mKaekIndex = index;
}
uint64_t nn::hac::ContentArchiveHeader::getContentSize() const
{
return mContentSize;
}
void nn::hac::ContentArchiveHeader::setContentSize(uint64_t size)
{
mContentSize = size;
}
uint64_t nn::hac::ContentArchiveHeader::getProgramId() const
{
return mProgramId;
}
void nn::hac::ContentArchiveHeader::setProgramId(uint64_t program_id)
{
mProgramId = program_id;
}
uint32_t nn::hac::ContentArchiveHeader::getContentIndex() const
{
return mContentIndex;
}
void nn::hac::ContentArchiveHeader::setContentIndex(uint32_t index)
{
mContentIndex = index;
}
uint32_t nn::hac::ContentArchiveHeader::getSdkAddonVersion() const
{
return mSdkAddonVersion;
}
void nn::hac::ContentArchiveHeader::setSdkAddonVersion(uint32_t version)
{
mSdkAddonVersion = version;
}
bool nn::hac::ContentArchiveHeader::hasRightsId() const
{
bool rightsIdIsSet = false;
for (size_t i = 0; i < nca::kRightsIdLen; i++)
{
if (mRightsId[i] != 0)
rightsIdIsSet = true;
}
return rightsIdIsSet;
}
const byte_t* nn::hac::ContentArchiveHeader::getRightsId() const
{
return mRightsId.data();
}
void nn::hac::ContentArchiveHeader::setRightsId(const byte_t* rights_id)
{
memcpy(mRightsId.data(), rights_id, nca::kRightsIdLen);
}
const fnd::List<nn::hac::ContentArchiveHeader::sPartitionEntry>& nn::hac::ContentArchiveHeader::getPartitionEntryList() const
{
return mPartitionEntryList;
}
void nn::hac::ContentArchiveHeader::setPartitionEntryList(const fnd::List<nn::hac::ContentArchiveHeader::sPartitionEntry>& partition_entry_list)
{
mPartitionEntryList = partition_entry_list;
// sanity check the list
if (mPartitionEntryList.size() >= nca::kPartitionNum)
{
throw fnd::Exception(kModuleName, "Too many partitions");
}
for (size_t i = 0; i < mPartitionEntryList.size(); i++)
{
if (mPartitionEntryList[i].header_index >= nca::kPartitionNum)
{
throw fnd::Exception(kModuleName, "Illegal partition index");
}
for (size_t j = i+1; j < mPartitionEntryList.size(); j++)
{
if (mPartitionEntryList[i].header_index == mPartitionEntryList[j].header_index)
{
throw fnd::Exception(kModuleName, "Duplicated partition index");
}
}
}
}
const byte_t* nn::hac::ContentArchiveHeader::getKeyArea() const
{
return mKeyArea.data();
}
void nn::hac::ContentArchiveHeader::setKeyArea(const byte_t* key_area)
{
memcpy(mKeyArea.data(), key_area, nca::kKeyAreaSize);
}
uint64_t nn::hac::ContentArchiveHeader::blockNumToSize(uint32_t block_num) const
{
return block_num * nca::kSectorSize;
}
uint32_t nn::hac::ContentArchiveHeader::sizeToBlockNum(uint64_t real_size) const
{
return (uint32_t)(align(real_size, nca::kSectorSize) / nca::kSectorSize);
}