From b7289d6dc5b8de6573903f55994a4483f3ece389 Mon Sep 17 00:00:00 2001
From: He Zhenxing <zhenxing.he@sun.com>
Date: Thu, 4 Feb 2010 12:14:32 +0800
Subject: [PATCH] Bug#49894 shifted MYSQL_REPLICATION_PLUGIN number

The number for MYSQL_REPLICATION_PLUGIN was shifted when backporting
because MYSQL_AUDIT_PLUGIN was not backported.

This problem is fixed by backporting only the number of audit plugin
and print an error when trying to load audit plugins. Note that
replication plugins compiled against old MYSQL_REPLICATION_PLUGIN
number will also be recognized as audit plugin and be rejected.
---
 include/mysql/plugin.h |  5 +++--
 sql/sql_plugin.cc      | 11 +++++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/include/mysql/plugin.h b/include/mysql/plugin.h
index 45d0234cb67..98b1cec0641 100644
--- a/include/mysql/plugin.h
+++ b/include/mysql/plugin.h
@@ -80,8 +80,9 @@ 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
diff --git a/sql/sql_plugin.cc b/sql/sql_plugin.cc
index 8cf8c4cb81f..c977a30b37b 100644
--- a/sql/sql_plugin.cc
+++ b/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,
 };
 
@@ -738,6 +741,14 @@ 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) >