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Hole detection while receiving events and maxbinlogcheck support for encrypted binlog files

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When a hole is detected while receiving events an ignorable event is
written in maxscale binlog. Such event is not sent ti slave servers.

Maxbinlogcheck can now check encrypted binlog files without decrypting
them
This commit is contained in:
MassimilianoPinto
2016-10-14 12:20:57 +02:00
parent 2fe58ebe5b
commit a30782227b
4 changed files with 382 additions and 47 deletions
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33
server/modules/routing/binlog/blr.h
View File

@ -34,6 +34,7 @@
* 11/07/16 Massimiliano Pinto Added SSL backend support
* 22/07/16 Massimiliano Pinto Added Semi-Sync replication support
* 01/08/2016 Massimiliano Pinto Added support for ANNOTATE_ROWS_EVENT in COM_BINLOG_DUMP
* 16/09/2016 Massimiliano Pinto Addition of MARIADB10_START_ENCRYPTION_EVENT 0xa4
*
* @endverbatim
*/
@ -45,6 +46,7 @@
#include <maxscale/thread.h>
#include <zlib.h>
#include <maxscale/protocol/mysql.h>
#include <maxscale/secrets.h>
#define BINLOG_FNAMELEN 255
#define BLR_PROTOCOL "MySQLBackend"
@ -53,7 +55,13 @@
#define BINLOG_NAMEFMT "%s.%06d"
#define BINLOG_NAME_ROOT "mysql-bin"
#define BINLOG_EVENT_HDR_LEN 19
#define BINLOG_EVENT_HDR_LEN 19
#define BINLOG_EVENT_CRC_ALGO_TYPE 1
#define BINLOG_EVENT_CRC_SIZE 4
/* BINLOG_EVENT_LEN_OFFSET points to event_size in event_header */
#define BINLOG_EVENT_LEN_OFFSET 9
#define BINLOG_ENCRYPTION_ALGORYTHM_NAME_LEN 13
#define BINLOG_FATAL_ERROR_READING 1236
/**
* Binlog event types
@ -103,8 +111,9 @@
#define MARIADB10_BINLOG_CHECKPOINT_EVENT 0xa1
#define MARIADB10_GTID_EVENT 0xa2
#define MARIADB10_GTID_GTID_LIST_EVENT 0xa3
#define MARIADB10_START_ENCRYPTION_EVENT 0xa4
#define MAX_EVENT_TYPE_MARIADB10 0xa3
#define MAX_EVENT_TYPE_MARIADB10 0xa4
/* Maximum event type so far */
#define MAX_EVENT_TYPE_END MAX_EVENT_TYPE_MARIADB10
@ -537,6 +546,26 @@ typedef struct router_instance
struct router_instance *next;
} ROUTER_INSTANCE;
/**
* Defines and offsets for binlog encryption
*
* BLRM_FDE_EVENT_TYPES_OFFSET is the offset in FDE event content that points to
* the number of events the master server supports.
*/
#define BLR_FDE_EVENT_BINLOG_VERSION 2
#define BLR_FDE_EVENT_SERVER_VERSION 50
#define BLR_FDE_EVENT_BINLOG_TIME 4
#define BLR_FDE_EVENT_BINLOG_EVENT_HDR_LEN 1
#define BLRM_FDE_EVENT_TYPES_OFFSET (BLR_FDE_EVENT_BINLOG_VERSION + \
BLR_FDE_EVENT_SERVER_VERSION + \
BLR_FDE_EVENT_BINLOG_TIME + \
BLR_FDE_EVENT_BINLOG_EVENT_HDR_LEN)
#define BLRM_CRYPTO_SCHEME_LENGTH 1
#define BLRM_KEY_VERSION_LENGTH 4
#define BLRM_IV_LENGTH AES_BLOCK_SIZE
#define BLRM_IV_OFFS_LENGTH 4
#define BLRM_NONCE_LENGTH (BLRM_IV_LENGTH - BLRM_IV_OFFS_LENGTH)
/**
* State machine for the master to MaxScale replication
*/