mirror of
https://github.com/Atmosphere-NX/Atmosphere-libs.git
synced 2025-06-28 05:52:39 +02:00
227 lines
11 KiB
C++
227 lines
11 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#pragma once
|
|
#include <vapours.hpp>
|
|
#include <stratosphere/fs/impl/fs_newable.hpp>
|
|
#include <stratosphere/fs/fs_istorage.hpp>
|
|
#include <stratosphere/fssystem/fssystem_nca_header.hpp>
|
|
#include <stratosphere/fssystem/buffers/fssystem_i_buffer_manager.hpp>
|
|
|
|
namespace ams::fssystem {
|
|
|
|
class AesCtrCounterExtendedStorage;
|
|
class IndirectStorage;
|
|
class SparseStorage;
|
|
|
|
struct NcaCryptoConfiguration;
|
|
|
|
using KeyGenerationFunction = void (*)(void *dst_key, size_t dst_key_size, const void *src_key, size_t src_key_size, s32 key_type, const NcaCryptoConfiguration &cfg);
|
|
using DecryptAesCtrFunction = void (*)(void *dst, size_t dst_size, s32 key_type, const void *src_key, size_t src_key_size, const void *iv, size_t iv_size, const void *src, size_t src_size);
|
|
|
|
struct NcaCryptoConfiguration {
|
|
static constexpr size_t Rsa2048KeyModulusSize = crypto::Rsa2048PssSha256Verifier::ModulusSize;
|
|
static constexpr size_t Rsa2048KeyPublicExponentSize = crypto::Rsa2048PssSha256Verifier::MaximumExponentSize;
|
|
static constexpr size_t Rsa2048KeyPrivateExponentSize = Rsa2048KeyModulusSize;
|
|
|
|
static constexpr size_t Aes128KeySize = crypto::AesEncryptor128::KeySize;
|
|
|
|
static constexpr size_t Header1SignatureKeyGenerationMax = 1;
|
|
|
|
static constexpr s32 KeyAreaEncryptionKeyIndexCount = 3;
|
|
static constexpr s32 HeaderEncryptionKeyCount = 2;
|
|
|
|
static constexpr size_t KeyGenerationMax = 32;
|
|
|
|
const u8 *header_1_sign_key_moduli[Header1SignatureKeyGenerationMax + 1];
|
|
u8 header_1_sign_key_public_exponent[Rsa2048KeyPublicExponentSize];
|
|
u8 key_area_encryption_key_source[KeyAreaEncryptionKeyIndexCount][Aes128KeySize];
|
|
u8 header_encryption_key_source[Aes128KeySize];
|
|
u8 header_encrypted_encryption_keys[HeaderEncryptionKeyCount][Aes128KeySize];
|
|
KeyGenerationFunction generate_key;
|
|
DecryptAesCtrFunction decrypt_aes_ctr;
|
|
DecryptAesCtrFunction decrypt_aes_ctr_external;
|
|
bool is_plaintext_header_available;
|
|
};
|
|
static_assert(std::is_pod<NcaCryptoConfiguration>::value);
|
|
|
|
constexpr inline bool IsInvalidKeyTypeValue(s32 key_type) {
|
|
return key_type < 0;
|
|
}
|
|
|
|
constexpr inline s32 GetKeyTypeValue(u8 key_index, u8 key_generation) {
|
|
constexpr s32 InvalidKeyTypeValue = -1;
|
|
static_assert(IsInvalidKeyTypeValue(InvalidKeyTypeValue));
|
|
|
|
if (key_index >= NcaCryptoConfiguration::KeyAreaEncryptionKeyIndexCount) {
|
|
return InvalidKeyTypeValue;
|
|
}
|
|
|
|
return NcaCryptoConfiguration::KeyAreaEncryptionKeyIndexCount * key_generation + key_index;
|
|
}
|
|
|
|
constexpr inline s32 KeyAreaEncryptionKeyCount = NcaCryptoConfiguration::KeyAreaEncryptionKeyIndexCount * NcaCryptoConfiguration::KeyGenerationMax;
|
|
|
|
enum class KeyType : s32 {
|
|
NcaHeaderKey = KeyAreaEncryptionKeyCount + 0,
|
|
NcaExternalKey = KeyAreaEncryptionKeyCount + 1,
|
|
SaveDataDeviceUniqueMac = KeyAreaEncryptionKeyCount + 2,
|
|
SaveDataSeedUniqueMac = KeyAreaEncryptionKeyCount + 3,
|
|
};
|
|
|
|
class NcaReader : public ::ams::fs::impl::Newable {
|
|
NON_COPYABLE(NcaReader);
|
|
NON_MOVEABLE(NcaReader);
|
|
private:
|
|
NcaHeader header;
|
|
u8 decryption_keys[NcaHeader::DecryptionKey_Count][NcaCryptoConfiguration::Aes128KeySize];
|
|
std::shared_ptr<fs::IStorage> shared_base_storage;
|
|
std::unique_ptr<fs::IStorage> header_storage;
|
|
fs::IStorage *body_storage;
|
|
u8 external_decryption_key[NcaCryptoConfiguration::Aes128KeySize];
|
|
DecryptAesCtrFunction decrypt_aes_ctr;
|
|
DecryptAesCtrFunction decrypt_aes_ctr_external;
|
|
bool is_software_aes_prioritized;
|
|
NcaHeader::EncryptionType header_encryption_type;
|
|
public:
|
|
NcaReader();
|
|
~NcaReader();
|
|
|
|
Result Initialize(fs::IStorage *base_storage, const NcaCryptoConfiguration &crypto_cfg);
|
|
Result Initialize(std::shared_ptr<fs::IStorage> base_storage, const NcaCryptoConfiguration &crypto_cfg);
|
|
|
|
fs::IStorage *GetBodyStorage();
|
|
u32 GetMagic() const;
|
|
NcaHeader::DistributionType GetDistributionType() const;
|
|
NcaHeader::ContentType GetContentType() const;
|
|
u8 GetKeyGeneration() const;
|
|
u8 GetKeyIndex() const;
|
|
u64 GetContentSize() const;
|
|
u64 GetProgramId() const;
|
|
u32 GetContentIndex() const;
|
|
u32 GetSdkAddonVersion() const;
|
|
void GetRightsId(u8 *dst, size_t dst_size) const;
|
|
bool HasFsInfo(s32 index) const;
|
|
s32 GetFsCount() const;
|
|
const Hash &GetFsHeaderHash(s32 index) const;
|
|
void GetFsHeaderHash(Hash *dst, s32 index) const;
|
|
void GetFsInfo(NcaHeader::FsInfo *dst, s32 index) const;
|
|
u64 GetFsOffset(s32 index) const;
|
|
u64 GetFsEndOffset(s32 index) const;
|
|
u64 GetFsSize(s32 index) const;
|
|
void GetEncryptedKey(void *dst, size_t size) const;
|
|
const void *GetDecryptionKey(s32 index) const;
|
|
bool HasValidInternalKey() const;
|
|
bool HasInternalDecryptionKeyForAesHardwareSpeedEmulation() const;
|
|
bool IsSoftwareAesPrioritized() const;
|
|
void PrioritizeSoftwareAes();
|
|
bool HasExternalDecryptionKey() const;
|
|
const void *GetExternalDecryptionKey() const;
|
|
void SetExternalDecryptionKey(const void *src, size_t size);
|
|
void GetRawData(void *dst, size_t dst_size) const;
|
|
DecryptAesCtrFunction GetExternalDecryptAesCtrFunction() const;
|
|
DecryptAesCtrFunction GetExternalDecryptAesCtrFunctionForExternalKey() const;
|
|
NcaHeader::EncryptionType GetEncryptionType() const;
|
|
Result ReadHeader(NcaFsHeader *dst, s32 index) const;
|
|
|
|
Result VerifyHeaderSign2(const void *key, size_t key_size);
|
|
};
|
|
|
|
class NcaFsHeaderReader : public ::ams::fs::impl::Newable {
|
|
NON_COPYABLE(NcaFsHeaderReader);
|
|
NON_MOVEABLE(NcaFsHeaderReader);
|
|
private:
|
|
NcaFsHeader data;
|
|
s32 fs_index;
|
|
public:
|
|
NcaFsHeaderReader() : fs_index(-1) {
|
|
std::memset(std::addressof(this->data), 0, sizeof(this->data));
|
|
}
|
|
|
|
Result Initialize(const NcaReader &reader, s32 index);
|
|
bool IsInitialized() const { return this->fs_index >= 0; }
|
|
|
|
NcaFsHeader &GetData() { return this->data; }
|
|
const NcaFsHeader &GetData() const { return this->data; }
|
|
void GetRawData(void *dst, size_t dst_size) const;
|
|
|
|
NcaFsHeader::HashData &GetHashData();
|
|
const NcaFsHeader::HashData &GetHashData() const;
|
|
u16 GetVersion() const;
|
|
s32 GetFsIndex() const;
|
|
NcaFsHeader::FsType GetFsType() const;
|
|
NcaFsHeader::HashType GetHashType() const;
|
|
NcaFsHeader::EncryptionType GetEncryptionType() const;
|
|
NcaPatchInfo &GetPatchInfo();
|
|
const NcaPatchInfo &GetPatchInfo() const;
|
|
const NcaAesCtrUpperIv GetAesCtrUpperIv() const;
|
|
bool ExistsSparseLayer() const;
|
|
NcaSparseInfo &GetSparseInfo();
|
|
const NcaSparseInfo &GetSparseInfo() const;
|
|
};
|
|
|
|
class NcaFileSystemDriver : public ::ams::fs::impl::Newable {
|
|
NON_COPYABLE(NcaFileSystemDriver);
|
|
NON_MOVEABLE(NcaFileSystemDriver);
|
|
public:
|
|
class StorageOption;
|
|
class StorageOptionWithHeaderReader;
|
|
private:
|
|
std::shared_ptr<NcaReader> original_reader;
|
|
std::shared_ptr<NcaReader> reader;
|
|
MemoryResource * const allocator;
|
|
fssystem::IBufferManager * const buffer_manager;
|
|
public:
|
|
static Result SetupFsHeaderReader(NcaFsHeaderReader *out, const NcaReader &reader, s32 fs_index);
|
|
public:
|
|
NcaFileSystemDriver(std::shared_ptr<NcaReader> reader, MemoryResource *allocator, IBufferManager *buffer_manager) : original_reader(), reader(reader), allocator(allocator), buffer_manager(buffer_manager) {
|
|
AMS_ASSERT(this->reader != nullptr);
|
|
}
|
|
|
|
NcaFileSystemDriver(std::shared_ptr<NcaReader> original_reader, std::shared_ptr<NcaReader> reader, MemoryResource *allocator, IBufferManager *buffer_manager) : original_reader(original_reader), reader(reader), allocator(allocator), buffer_manager(buffer_manager) {
|
|
AMS_ASSERT(this->reader != nullptr);
|
|
}
|
|
|
|
Result OpenRawStorage(std::shared_ptr<fs::IStorage> *out, s32 fs_index);
|
|
|
|
Result OpenStorage(std::shared_ptr<fs::IStorage> *out, NcaFsHeaderReader *out_header_reader, s32 fs_index);
|
|
Result OpenStorage(std::shared_ptr<fs::IStorage> *out, StorageOption *option);
|
|
|
|
Result OpenStorage(std::shared_ptr<fs::IStorage> *out, s32 fs_index) {
|
|
NcaFsHeaderReader dummy;
|
|
return this->OpenStorage(out, std::addressof(dummy), fs_index);
|
|
}
|
|
|
|
Result OpenDecryptableStorage(std::shared_ptr<fs::IStorage> *out, StorageOption *option, bool indirect_needed);
|
|
|
|
private:
|
|
class BaseStorage;
|
|
|
|
Result CreateBaseStorage(BaseStorage *out, StorageOption *option);
|
|
|
|
Result CreateDecryptableStorage(std::unique_ptr<fs::IStorage> *out, StorageOption *option, BaseStorage *base_storage);
|
|
Result CreateAesXtsStorage(std::unique_ptr<fs::IStorage> *out, BaseStorage *base_storage);
|
|
Result CreateAesCtrStorage(std::unique_ptr<fs::IStorage> *out, BaseStorage *base_storage);
|
|
Result CreateAesCtrExStorage(std::unique_ptr<fs::IStorage> *out, StorageOption *option, BaseStorage *base_storage);
|
|
|
|
Result CreateIndirectStorage(std::unique_ptr<fs::IStorage> *out, StorageOption *option, std::unique_ptr<fs::IStorage> base_storage);
|
|
|
|
Result CreateVerificationStorage(std::unique_ptr<fs::IStorage> *out, std::unique_ptr<fs::IStorage> base_storage, NcaFsHeaderReader *header_reader);
|
|
Result CreateSha256Storage(std::unique_ptr<fs::IStorage> *out, std::unique_ptr<fs::IStorage> base_storage, NcaFsHeaderReader *header_reader);
|
|
Result CreateIntegrityVerificationStorage(std::unique_ptr<fs::IStorage> *out, std::unique_ptr<fs::IStorage> base_storage, NcaFsHeaderReader *header_reader);
|
|
};
|
|
|
|
}
|