mirror of
https://github.com/jakcron/nstool.git
synced 2024-12-23 11:15:28 +00:00
327 lines
7.4 KiB
C++
327 lines
7.4 KiB
C++
#include <nn/hac/NcaHeader.h>
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nn::hac::NcaHeader::NcaHeader()
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{
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clear();
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}
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nn::hac::NcaHeader::NcaHeader(const NcaHeader & other)
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{
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*this = other;
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}
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bool nn::hac::NcaHeader::operator==(const NcaHeader & other) const
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{
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return (mDistributionType == other.mDistributionType) \
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&& (mContentType == other.mContentType) \
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&& (mKeyGeneration == other.mKeyGeneration) \
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&& (mKaekIndex == other.mKaekIndex) \
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&& (mContentSize == other.mContentSize) \
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&& (mProgramId == other.mProgramId) \
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&& (mContentIndex == other.mContentIndex) \
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&& (mSdkAddonVersion == other.mSdkAddonVersion) \
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&& (mPartitions == other.mPartitions) \
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&& (mEncAesKeys == other.mEncAesKeys);
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}
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bool nn::hac::NcaHeader::operator!=(const NcaHeader & other) const
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{
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return !(*this == other);
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}
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void nn::hac::NcaHeader::operator=(const NcaHeader & other)
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{
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if (other.getBytes().size())
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{
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fromBytes(other.getBytes().data(), other.getBytes().size());
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}
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else
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{
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mRawBinary.clear();
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mDistributionType = other.mDistributionType;
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mContentType = other.mContentType;
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mKeyGeneration = other.mKeyGeneration;
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mKaekIndex = other.mKaekIndex;
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mContentSize = other.mContentSize;
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mProgramId = other.mProgramId;
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mContentIndex = other.mContentIndex;
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mSdkAddonVersion = other.mSdkAddonVersion;
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mPartitions = other.mPartitions;
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mEncAesKeys = other.mEncAesKeys;
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}
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}
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void nn::hac::NcaHeader::toBytes()
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{
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mRawBinary.alloc(sizeof(sNcaHeader));
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sNcaHeader* hdr = (sNcaHeader*)mRawBinary.data();
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switch(mFormatVersion)
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{
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case (NCA2_FORMAT):
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hdr->st_magic = nca::kNca2StructMagic;
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break;
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case (NCA3_FORMAT):
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hdr->st_magic = nca::kNca3StructMagic;
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break;
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default:
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throw fnd::Exception(kModuleName, "Unsupported format version");
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}
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hdr->distribution_type = mDistributionType;
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hdr->content_type = mContentType;
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if (mKeyGeneration > 2)
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{
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hdr->key_generation = 2;
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hdr->key_generation_2 = mKeyGeneration;
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}
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else
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{
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hdr->key_generation = mKeyGeneration;
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hdr->key_generation_2 = 0;
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}
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hdr->key_area_encryption_key_index = mKaekIndex;
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hdr->content_size = mContentSize;
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hdr->program_id = mProgramId;
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hdr->content_index = mContentIndex;
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hdr->sdk_addon_version = mSdkAddonVersion;
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memcpy(hdr->rights_id, mRightsId, nca::kRightsIdLen);
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// TODO: properly reconstruct NCA layout? atm in hands of user
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for (size_t i = 0; i < mPartitions.size(); i++)
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{
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// determine partition index
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byte_t idx = mPartitions[i].index;
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if (mPartitions[i].index >= nca::kPartitionNum || hdr->partition[idx].enabled) continue;
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hdr->partition[idx].start = sizeToBlockNum(mPartitions[i].offset);
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hdr->partition[idx].end = (sizeToBlockNum(mPartitions[i].offset) + sizeToBlockNum(mPartitions[i].size));
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hdr->partition[idx].enabled = true;
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hdr->partition_hash[idx] = mPartitions[i].hash;
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}
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for (size_t i = 0; i < nca::kAesKeyNum; i++)
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{
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hdr->enc_aes_key[i] = mEncAesKeys[i];
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}
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}
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void nn::hac::NcaHeader::fromBytes(const byte_t * data, size_t len)
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{
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if (len < sizeof(sNcaHeader))
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{
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throw fnd::Exception(kModuleName, "NCA header size is too small");
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}
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clear();
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mRawBinary.alloc(sizeof(sNcaHeader));
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memcpy(mRawBinary.data(), data, sizeof(sNcaHeader));
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sNcaHeader* hdr = (sNcaHeader*)mRawBinary.data();
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switch(hdr->st_magic.get())
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{
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case (nca::kNca2StructMagic) :
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mFormatVersion = NCA2_FORMAT;
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break;
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case (nca::kNca3StructMagic) :
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mFormatVersion = NCA3_FORMAT;
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break;
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throw fnd::Exception(kModuleName, "NCA header corrupt");
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}
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mDistributionType = (nca::DistributionType)hdr->distribution_type;
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mContentType = (nca::ContentType)hdr->content_type;
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mKeyGeneration = _MAX(hdr->key_generation, hdr->key_generation_2);
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mKaekIndex = hdr->key_area_encryption_key_index;
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mContentSize = *hdr->content_size;
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mProgramId = *hdr->program_id;
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mContentIndex = *hdr->content_index;
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mSdkAddonVersion = *hdr->sdk_addon_version;
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memcpy(mRightsId, hdr->rights_id, nca::kRightsIdLen);
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for (size_t i = 0; i < nca::kPartitionNum; i++)
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{
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// skip sections that don't exist
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if (hdr->partition[i].enabled == 0) continue;
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// add high level struct
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mPartitions.addElement({(byte_t)i, blockNumToSize(hdr->partition[i].start.get()), blockNumToSize(hdr->partition[i].end.get() - hdr->partition[i].start.get()), hdr->partition_hash[i] });
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}
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for (size_t i = 0; i < nca::kAesKeyNum; i++)
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{
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mEncAesKeys.addElement(hdr->enc_aes_key[i]);
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}
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}
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const fnd::Vec<byte_t>& nn::hac::NcaHeader::getBytes() const
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{
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return mRawBinary;
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}
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void nn::hac::NcaHeader::clear()
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{
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mFormatVersion = NCA3_FORMAT;
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mDistributionType = nca::DIST_DOWNLOAD;
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mContentType = nca::TYPE_PROGRAM;
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mKeyGeneration = 0;
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mKaekIndex = 0;
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mContentSize = 0;
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mProgramId = 0;
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mContentIndex = 0;
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mSdkAddonVersion = 0;
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mPartitions.clear();
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mEncAesKeys.clear();
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}
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nn::hac::NcaHeader::FormatVersion nn::hac::NcaHeader::getFormatVersion() const
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{
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return mFormatVersion;
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}
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void nn::hac::NcaHeader::setFormatVersion(FormatVersion version)
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{
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mFormatVersion = version;
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}
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nn::hac::nca::DistributionType nn::hac::NcaHeader::getDistributionType() const
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{
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return mDistributionType;
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}
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void nn::hac::NcaHeader::setDistributionType(nca::DistributionType type)
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{
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mDistributionType = type;
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}
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nn::hac::nca::ContentType nn::hac::NcaHeader::getContentType() const
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{
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return mContentType;
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}
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void nn::hac::NcaHeader::setContentType(nca::ContentType type)
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{
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mContentType = type;
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}
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byte_t nn::hac::NcaHeader::getKeyGeneration() const
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{
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return mKeyGeneration;
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}
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void nn::hac::NcaHeader::setKeyGeneration(byte_t gen)
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{
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mKeyGeneration = gen;
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}
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byte_t nn::hac::NcaHeader::getKaekIndex() const
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{
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return mKaekIndex;
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}
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void nn::hac::NcaHeader::setKaekIndex(byte_t index)
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{
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mKaekIndex = index;
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}
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uint64_t nn::hac::NcaHeader::getContentSize() const
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{
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return mContentSize;
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}
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void nn::hac::NcaHeader::setContentSize(uint64_t size)
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{
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mContentSize = size;
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}
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uint64_t nn::hac::NcaHeader::getProgramId() const
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{
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return mProgramId;
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}
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void nn::hac::NcaHeader::setProgramId(uint64_t program_id)
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{
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mProgramId = program_id;
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}
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uint32_t nn::hac::NcaHeader::getContentIndex() const
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{
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return mContentIndex;
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}
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void nn::hac::NcaHeader::setContentIndex(uint32_t index)
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{
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mContentIndex = index;
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}
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uint32_t nn::hac::NcaHeader::getSdkAddonVersion() const
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{
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return mSdkAddonVersion;
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}
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void nn::hac::NcaHeader::setSdkAddonVersion(uint32_t version)
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{
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mSdkAddonVersion = version;
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}
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bool nn::hac::NcaHeader::hasRightsId() const
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{
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bool rightsIdIsSet = false;
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for (size_t i = 0; i < nca::kRightsIdLen; i++)
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{
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if (mRightsId[i] != 0)
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rightsIdIsSet = true;
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}
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return rightsIdIsSet;
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}
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const byte_t* nn::hac::NcaHeader::getRightsId() const
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{
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return mRightsId;
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}
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void nn::hac::NcaHeader::setRightsId(const byte_t* rights_id)
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{
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memcpy(mRightsId, rights_id, nca::kRightsIdLen);
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}
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const fnd::List<nn::hac::NcaHeader::sPartition>& nn::hac::NcaHeader::getPartitions() const
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{
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return mPartitions;
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}
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void nn::hac::NcaHeader::setPartitions(const fnd::List<nn::hac::NcaHeader::sPartition>& partitions)
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{
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mPartitions = partitions;
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if (mPartitions.size() >= nca::kPartitionNum)
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{
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throw fnd::Exception(kModuleName, "Too many NCA partitions");
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}
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}
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const fnd::List<crypto::aes::sAes128Key>& nn::hac::NcaHeader::getEncAesKeys() const
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{
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return mEncAesKeys;
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}
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void nn::hac::NcaHeader::setEncAesKeys(const fnd::List<crypto::aes::sAes128Key>& keys)
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{
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mEncAesKeys = keys;
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}
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uint64_t nn::hac::NcaHeader::blockNumToSize(uint32_t block_num) const
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{
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return block_num*nca::kSectorSize;
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}
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uint32_t nn::hac::NcaHeader::sizeToBlockNum(uint64_t real_size) const
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{
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return (uint32_t)(align(real_size, nca::kSectorSize) / nca::kSectorSize);
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} |