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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_HEADER_H
#define CEPH_LIBRBD_CRYPTO_LUKS_HEADER_H
#include <libcryptsetup.h>
#include "common/ceph_context.h"
#include "include/buffer.h"
namespace librbd {
namespace crypto {
namespace luks {
class Header {
public:
Header(CephContext* cct);
~Header();
int init();
int write(const ceph::bufferlist& bl);
ssize_t read(ceph::bufferlist* bl);
int format(const char* type, const char* alg, const char* key,
size_t key_size, const char* cipher_mode, uint32_t sector_size,
uint32_t data_alignment, bool insecure_fast_mode);
int add_keyslot(const char* passphrase, size_t passphrase_size);
int load(const char* type);
int read_volume_key(const char* passphrase, size_t passphrase_size,
char* volume_key, size_t* volume_key_size);
int get_sector_size();
uint64_t get_data_offset();
const char* get_cipher();
const char* get_cipher_mode();
const char* get_format_name();
private:
void libcryptsetup_log(int level, const char* msg);
static void libcryptsetup_log_wrapper(int level, const char* msg,
void* header);
CephContext* m_cct;
int m_fd;
struct crypt_device *m_cd;
};
} // namespace luks
} // namespace crypto
} // namespace librbd
#endif // CEPH_LIBRBD_CRYPTO_LUKS_HEADER_H
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