Auto merge from 5.1-rep-semisync

Author: He Zhenxing

include/mysql/plugin.h

@@ -66,8 +66,9 @@ typedef struct st_mysql_xid MYSQL_XID;
 #define MYSQL_FTPARSER_PLUGIN        2  /* Full-text parser plugin      */
 #define MYSQL_DAEMON_PLUGIN          3  /* The daemon/raw plugin type */
 #define MYSQL_INFORMATION_SCHEMA_PLUGIN  4  /* The I_S plugin type */
-#define MYSQL_REPLICATION_PLUGIN     5	/* The replication plugin type */
-#define MYSQL_MAX_PLUGIN_TYPE_NUM    6  /* The number of plugin types   */
+#define MYSQL_AUDIT_PLUGIN           5  /* The Audit plugin type        */
+#define MYSQL_REPLICATION_PLUGIN     6	/* The replication plugin type */
+#define MYSQL_MAX_PLUGIN_TYPE_NUM    7  /* The number of plugin types   */
 
 /* We use the following strings to define licenses for plugins */
 #define PLUGIN_LICENSE_PROPRIETARY 0

sql/sql_plugin.cc

@@ -47,6 +47,7 @@ const LEX_STRING plugin_type_names[MYSQL_MAX_PLUGIN_TYPE_NUM]=
   { C_STRING_WITH_LEN("FTPARSER") },
   { C_STRING_WITH_LEN("DAEMON") },
   { C_STRING_WITH_LEN("INFORMATION SCHEMA") },
+  { C_STRING_WITH_LEN("AUDIT") },
   { C_STRING_WITH_LEN("REPLICATION") },
 };
 
@@ -87,6 +88,7 @@ static int min_plugin_info_interface_version[MYSQL_MAX_PLUGIN_TYPE_NUM]=
   MYSQL_FTPARSER_INTERFACE_VERSION,
   MYSQL_DAEMON_INTERFACE_VERSION,
   MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION,
+  0x0000, /* place holder for audit plugin */
   MYSQL_REPLICATION_INTERFACE_VERSION,
 };
 static int cur_plugin_info_interface_version[MYSQL_MAX_PLUGIN_TYPE_NUM]=
@@ -96,6 +98,7 @@ static int cur_plugin_info_interface_version[MYSQL_MAX_PLUGIN_TYPE_NUM]=
   MYSQL_FTPARSER_INTERFACE_VERSION,
   MYSQL_DAEMON_INTERFACE_VERSION,
   MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION,
+  0x0000, /* place holder for audit plugin */
   MYSQL_REPLICATION_INTERFACE_VERSION,
 };
 
@@ -745,6 +748,14 @@ static bool plugin_add(MEM_ROOT *tmp_root,
                        name_len))
     {
       struct st_plugin_int *tmp_plugin_ptr;
+
+      if (plugin->type == MYSQL_AUDIT_PLUGIN)
+      {
+        /* Bug#49894 */
+        sql_print_error("Plugin type 'AUDIT' not supported by this server.");
+        goto err;
+      }
+
       if (*(int*)plugin->info <
           min_plugin_info_interface_version[plugin->type] ||
           ((*(int*)plugin->info) >> 8) >