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path: root/src/manager/service/ckm-logic.h
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/*
 *  Copyright (c) 2014 - 2018 Samsung Electronics Co., Ltd All Rights Reserved
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License
 *
 *
 * @file        ckm-logic.h
 * @author      Bartlomiej Grzelewski (b.grzelewski@samsung.com)
 * @version     1.0
 * @brief       Sample service implementation.
 */
#pragma once

#include <string>
#include <vector>

#include <message-buffer.h>
#include <protocols.h>
#include <ckm/ckm-type.h>
#include <connection-info.h>
#include <db-crypto.h>
#include <key-provider.h>
#include <crypto-logic.h>
#include <file-lock.h>
#include <access-control.h>
#include <certificate-impl.h>
#include <sys/types.h>
#include <generic-backend/gobj.h>

#include <platform/decider.h>

namespace CKM {

struct UserData {
	KeyProvider    keyProvider;
	DB::Crypto     database;
	CryptoLogic    crypto;
};

class CKMLogic {
public:
	static const uid_t SYSTEM_DB_UID;
	static const uid_t ADMIN_USER_DB_UID;

	CKMLogic();
	CKMLogic(const CKMLogic &) = delete;
	CKMLogic(CKMLogic &&) = delete;
	CKMLogic &operator=(const CKMLogic &) = delete;
	CKMLogic &operator=(CKMLogic &&) = delete;
	virtual ~CKMLogic();

	RawBuffer unlockUserKey(uid_t user, const Password &password);
	RawBuffer lockUserKey(uid_t user);

	RawBuffer removeUserData(uid_t user);

	RawBuffer changeUserPassword(
		uid_t user,
		const Password &oldPassword,
		const Password &newPassword);

	RawBuffer resetUserPassword(
		uid_t user,
		const Password &newPassword);

	RawBuffer removeApplicationData(
		const ClientId &owner);

	RawBuffer saveData(
		const Credentials &cred,
		int commandId,
		const Name &name,
		const ClientId &explicitOwner,
		const Crypto::Data &data,
		const PolicySerializable &policy);

	RawBuffer savePKCS12(
		const Credentials &cred,
		int commandId,
		const Name &name,
		const ClientId &explicitOwner,
		const PKCS12Serializable &pkcs,
		const PolicySerializable &keyPolicy,
		const PolicySerializable &certPolicy);

	RawBuffer removeData(
		const Credentials &cred,
		int commandId,
		const Name &name,
		const ClientId &explicitOwner);

	RawBuffer getData(
		const Credentials &cred,
		int commandId,
		DataType dataType,
		const Name &name,
		const ClientId &explicitOwner,
		const Password &password);

	RawBuffer getPKCS12(
		const Credentials &cred,
		int commandId,
		const Name &name,
		const ClientId &explicitOwner,
		const Password &keyPassword,
		const Password &certPassword);

	RawBuffer getDataList(
		const Credentials &cred,
		int commandId,
		DataType dataType);

	RawBuffer createKeyPair(
		const Credentials &cred,
		int commandId,
		const CryptoAlgorithmSerializable &keyGenParams,
		const Name &namePrivate,
		const ClientId &explicitOwnerPrivate,
		const Name &namePublic,
		const ClientId &explicitOwnerPublic,
		const PolicySerializable &policyPrivate,
		const PolicySerializable &policyPublic);

	RawBuffer createKeyAES(
		const Credentials &cred,
		int commandId,
		const int size,
		const Name &name,
		const ClientId &explicitOwner,
		const PolicySerializable &policy);

	RawBuffer getCertificateChain(
		const Credentials &cred,
		int commandId,
		const RawBuffer &certificate,
		const RawBufferVector &untrustedCertificates,
		const RawBufferVector &trustedCertificates,
		bool useTrustedSystemCertificates);

	RawBuffer getCertificateChain(
		const Credentials &cred,
		int commandId,
		const RawBuffer &certificate,
		const OwnerNameVector &untrustedCertificates,
		const OwnerNameVector &trustedCertificates,
		bool useTrustedSystemCertificates);

	RawBuffer  createSignature(
		const Credentials &cred,
		int commandId,
		const Name &privateKeyName,
		const ClientId &explicitOwner,
		const Password &password,           // password for private_key
		const RawBuffer &message,
		const CryptoAlgorithm &cryptoAlgorithm);

	RawBuffer verifySignature(
		const Credentials &cred,
		int commandId,
		const Name &publicKeyOrCertName,
		const ClientId &explicitOwner,
		const Password &password,           // password for public_key (optional)
		const RawBuffer &message,
		const RawBuffer &signature,
		const CryptoAlgorithm &cryptoAlgorithm);

	RawBuffer updateCCMode();

	RawBuffer setPermission(
		const Credentials &cred,
		const int command,
		const int msgID,
		const Name &name,
		const ClientId &explicitOwner,
		const ClientId &accessor,
		const PermissionMask permissionMask);

	int setPermissionHelper(
		const Credentials &cred,
		const Name &name,
		const ClientId &explicitOwner,
		const ClientId &accessor,
		const PermissionMask permissionMask);

	int verifyAndSaveDataHelper(
		const Credentials &cred,
		const Name &name,
		const ClientId &explicitOwner,
		const Crypto::Data &data,
		const PolicySerializable &policy);

	int getKeyForService(
		const Credentials &cred,
		const Name &name,
		const ClientId &explicitOwner,
		const Password &pass,
		Crypto::GObjShPtr &key);

	int importInitialData(
		const Name &name,
		const Crypto::Data &data,
		const RawBuffer &iv,
		const Policy &policy);

	int unlockSystemDB();

private:
	// select private/system database depending on asking uid and owner id.
	// output: database handler for effective owner
	UserData &selectDatabase(const Credentials &cred,
							 const ClientId &explicitOwner);

	int unlockDatabase(uid_t user,
					   const Password &password);

	void loadDKEKFile(
		uid_t user,
		const Password &password);

	void saveDKEKFile(
		uid_t user,
		const Password &password);

	int verifyBinaryData(Crypto::Data &input_data) const;

	int toBinaryData(
		const Crypto::Data &input_data,
		Crypto::Data &output_data) const;

	int checkSaveConditions(
		const Credentials &cred,
		UserData &handler,
		const Name &name,
		const ClientId &owner);

	int saveDataHelper(
		const Credentials &cred,
		const Name &name,
		const ClientId &explicitOwner,
		const Crypto::Data &data,
		const PolicySerializable &policy);

	int saveDataHelper(
		const Credentials &cred,
		const Name &name,
		const ClientId &explicitOwner,
		const PKCS12Serializable &pkcs,
		const PolicySerializable &keyPolicy,
		const PolicySerializable &certPolicy);

	DB::Row createEncryptedRow(
		CryptoLogic &crypto,
		const Name &name,
		const ClientId &owner,
		const Crypto::Data &data,
		const Policy &policy) const;

	int getPKCS12Helper(
		const Credentials &cred,
		const Name &name,
		const ClientId &explicitOwner,
		const Password &keyPassword,
		const Password &certPassword,
		KeyShPtr &privKey,
		CertificateShPtr &cert,
		CertificateShPtrVector &caChain);

	int extractPKCS12Data(
		CryptoLogic &crypto,
		const Name &name,
		const ClientId &owner,
		const PKCS12Serializable &pkcs,
		const PolicySerializable &keyPolicy,
		const PolicySerializable &certPolicy,
		DB::RowVector &output) const;

	int removeDataHelper(
		const Credentials &cred,
		const Name &name,
		const ClientId &explicitOwner);

	int readSingleRow(
		const Name &name,
		const ClientId &owner,
		DataType dataType,
		DB::Crypto &database,
		DB::Row &row);

	int readMultiRow(const Name &name,
					 const ClientId &owner,
					 DataType dataType,
					 DB::Crypto &database,
					 DB::RowVector &output);

	int checkDataPermissionsHelper(
		const Credentials &accessorCred,
		const Name &name,
		const ClientId &owner,
		const DB::Row &row,
		bool exportFlag,
		DB::Crypto &database);

	Crypto::GObjUPtr rowToObject(
		UserData &handler,
		DB::Row row,
		const Password &password);

	int readDataHelper(
		bool exportFlag,
		const Credentials &cred,
		DataType dataType,
		const Name &name,
		const ClientId &explicitOwner,
		const Password &password,
		Crypto::GObjUPtr &obj);

	int readDataHelper(
		bool exportFlag,
		const Credentials &cred,
		DataType dataType,
		const Name &name,
		const ClientId &explicitOwner,
		const Password &password,
		Crypto::GObjUPtr &obj,
		DataType &objDataType);

	int readDataHelper(
		bool exportFlag,
		const Credentials &cred,
		DataType dataType,
		const Name &name,
		const ClientId &explicitOwner,
		const Password &password,
		Crypto::GObjUPtrVector &objs);

	int createKeyAESHelper(
		const Credentials &cred,
		const int size,
		const Name &name,
		const ClientId &explicitOwner,
		const PolicySerializable &policy);

	int createKeyPairHelper(
		const Credentials &cred,
		const CryptoAlgorithmSerializable &keyGenParams,
		const Name &namePrivate,
		const ClientId &explicitOwnerPrivate,
		const Name &namePublic,
		const ClientId &explicitOwnerPublic,
		const PolicySerializable &policyPrivate,
		const PolicySerializable &policyPublic);

	int readCertificateHelper(
		const Credentials &cred,
		const OwnerNameVector &ownerNameVector,
		CertificateImplVector &certVector);

	int getCertificateChainHelper(
		const CertificateImpl &cert,
		const RawBufferVector &untrustedCertificates,
		const RawBufferVector &trustedCertificates,
		bool useTrustedSystemCertificates,
		RawBufferVector &chainRawVector);

	int getCertificateChainHelper(
		const Credentials &cred,
		const CertificateImpl &cert,
		const OwnerNameVector &untrusted,
		const OwnerNameVector &trusted,
		bool useTrustedSystemCertificates,
		RawBufferVector &chainRawVector);

	int getDataListHelper(
		const Credentials &cred,
		const DataType dataType,
		OwnerNameVector &ownerNameVector);

	int changeUserPasswordHelper(uid_t user,
								 const Password &oldPassword,
								 const Password &newPassword);

	int resetUserPasswordHelper(uid_t user, const Password &newPassword);

	int loadAppKey(UserData &handle, const ClientId &owner);

	void migrateSecureStorageData(bool isAdminUser);

	AccessControl m_accessControl;
	Crypto::Decider m_decider;
	//FileLock m_lock;

protected:
	std::map<uid_t, UserData> m_userDataMap;
};

} // namespace CKM