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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef CEPH_LIBRBD_CRYPTO_LUKS_ENCRYPTION_FORMAT_H
#define CEPH_LIBRBD_CRYPTO_LUKS_ENCRYPTION_FORMAT_H
#include <string_view>
#include "include/rbd/librbd.hpp"
#include "librbd/crypto/CryptoInterface.h"
#include "librbd/crypto/EncryptionFormat.h"
namespace librbd {
struct ImageCtx;
namespace crypto {
namespace luks {
template <typename ImageCtxT>
class EncryptionFormat : public crypto::EncryptionFormat<ImageCtxT> {
public:
void flatten(ImageCtxT* ictx, Context* on_finish) override;
CryptoInterface* get_crypto() override {
ceph_assert(m_crypto);
return m_crypto.get();
}
protected:
std::unique_ptr<CryptoInterface> m_crypto;
};
template <typename ImageCtxT>
class LUKSEncryptionFormat : public EncryptionFormat<ImageCtxT> {
public:
LUKSEncryptionFormat(std::string_view passphrase)
: m_passphrase(passphrase) {}
std::unique_ptr<crypto::EncryptionFormat<ImageCtxT>> clone() const override {
return std::make_unique<LUKSEncryptionFormat>(m_passphrase);
}
void format(ImageCtxT* ictx, Context* on_finish) override;
void load(ImageCtxT* ictx, std::string* detected_format_name,
Context* on_finish) override;
private:
std::string_view m_passphrase;
};
template <typename ImageCtxT>
class LUKS1EncryptionFormat : public EncryptionFormat<ImageCtxT> {
public:
LUKS1EncryptionFormat(encryption_algorithm_t alg, std::string_view passphrase)
: m_alg(alg), m_passphrase(passphrase) {}
std::unique_ptr<crypto::EncryptionFormat<ImageCtxT>> clone() const override {
return std::make_unique<LUKS1EncryptionFormat>(m_alg, m_passphrase);
}
void format(ImageCtxT* ictx, Context* on_finish) override;
void load(ImageCtxT* ictx, std::string* detected_format_name,
Context* on_finish) override;
private:
encryption_algorithm_t m_alg;
std::string_view m_passphrase;
};
template <typename ImageCtxT>
class LUKS2EncryptionFormat : public EncryptionFormat<ImageCtxT> {
public:
LUKS2EncryptionFormat(encryption_algorithm_t alg, std::string_view passphrase)
: m_alg(alg), m_passphrase(passphrase) {}
std::unique_ptr<crypto::EncryptionFormat<ImageCtxT>> clone() const override {
return std::make_unique<LUKS2EncryptionFormat>(m_alg, m_passphrase);
}
void format(ImageCtxT* ictx, Context* on_finish) override;
void load(ImageCtxT* ictx, std::string* detected_format_name,
Context* on_finish) override;
private:
encryption_algorithm_t m_alg;
std::string_view m_passphrase;
};
} // namespace luks
} // namespace crypto
} // namespace librbd
extern template class librbd::crypto::luks::LUKSEncryptionFormat<
librbd::ImageCtx>;
extern template class librbd::crypto::luks::LUKS1EncryptionFormat<
librbd::ImageCtx>;
extern template class librbd::crypto::luks::LUKS2EncryptionFormat<
librbd::ImageCtx>;
#endif // CEPH_LIBRBD_CRYPTO_LUKS_ENCRYPTION_FORMAT_H
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