Redo log - encryption. More...

#include "log0handler_interface.h"
#include "log0sys.h"
#include "os0enc.h"
#include "log0log.h"
#include "univ.i"

Functions
Log - encryption management.
bool	log_file_header_fill_encryption (const Encryption_metadata &encryption_metadata, bool encrypt_key, byte *buf)
	Writes encryption information to log header. More...

dberr_t	log_encryption_read (log_t &log, ib::redo::Handler_interface::Metadata_value &block)
	Reads the log encryption header to get the redo log encryption information. More...

dberr_t	log_read_encryption_info (log_t &log)
	Read the log encryption information from Redo Log Handler and update log.m_encryption_metadata and log.m_encryption_buf. More...

dberr_t	log_encryption_update_and_write_header (log_t &log, const ib::redo::Handler_interface::Metadata_value block)
	Update in-mem encryption information with the new information and also write this new information to encryption header. More...

dberr_t	log_encryption_generate_metadata ()
	Generate new encryption information for REDO log. More...

bool	log_can_encrypt (const log_t &log)

Detailed Description

Redo log - encryption.

Function Documentation

bool log_can_encrypt ( const log_t & log )

Returns: true iff redo log is encrypted (checks in-memory metadata in log_t).

dberr_t log_encryption_generate_metadata ( )

Generate new encryption information for REDO log.

dberr_t log_encryption_read	(	log_t &	log,
		ib::redo::Handler_interface::Metadata_value &	block
	)

Reads the log encryption header to get the redo log encryption information.

Read is done using the file which contains the current checkpoint_lsn.

Parameters

[in]	log	redo log
[out]	block	block to read encryption information into

dberr_t log_encryption_update_and_write_header	(	log_t &	log,
		const ib::redo::Handler_interface::Metadata_value	block
	)

Update in-mem encryption information with the new information and also write this new information to encryption header.

Parameters

[in,out]	log	redo log
[in]	block	block containing new encryption information

bool log_file_header_fill_encryption	(	const Encryption_metadata &	encryption_metadata,
		bool	encrypt_key,
		byte *	buf
	)

Writes encryption information to log header.

Parameters

[in]	encryption_metadata	encryption metadata (algorithm, key, iv)
[in]	encrypt_key	encrypt with master key
[in,out]	buf	log file encryption header

dberr_t log_read_encryption_info ( log_t & log )

Read the log encryption information from Redo Log Handler and update log.m_encryption_metadata and log.m_encryption_buf.

Parameters

[out] log redo log