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5.5 merge

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This commit is contained in:
Sergei Golubchik
2013-01-29 15:10:47 +01:00
parent cf20de000b 52fbe44fbb
commit 0af4b6c6ee
372 changed files with 11040 additions and 2969 deletions
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46
sql/sql_parse.cc
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@ -991,7 +991,18 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
thd->security_ctx->user= 0;
thd->user_connect= 0;
rc= acl_authenticate(thd, 0, packet_length);
/*
to limit COM_CHANGE_USER ability to brute-force passwords,
we only allow three unsuccessful COM_CHANGE_USER per connection.
*/
if (thd->failed_com_change_user >= 3)
{
my_message(ER_UNKNOWN_COM_ERROR, ER(ER_UNKNOWN_COM_ERROR), MYF(0));
rc= 1;
}
else
rc= acl_authenticate(thd, 0, packet_length);
MYSQL_AUDIT_NOTIFY_CONNECTION_CHANGE_USER(thd);
if (rc)
{
@ -1006,6 +1017,8 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
thd->variables.collation_connection= save_collation_connection;
thd->variables.character_set_results= save_character_set_results;
thd->update_charset();
thd->failed_com_change_user++;
my_sleep(1000000);
}
else
{
@ -4633,16 +4646,20 @@ finish:
if (! thd->in_sub_stmt)
{
/* report error issued during command execution */
if (thd->killed_errno())
if (thd->killed != NOT_KILLED)
{
if (! thd->stmt_da->is_set())
thd->send_kill_message();
}
if (thd->killed < KILL_CONNECTION)
{
thd->killed= NOT_KILLED;
thd->mysys_var->abort= 0;
/* report error issued during command execution */
if (thd->killed_errno())
{
/* If we already sent 'ok', we can ignore any kill query statements */
if (! thd->stmt_da->is_set())
thd->send_kill_message();
}
if (thd->killed < KILL_CONNECTION)
{
thd->reset_killed();
thd->mysys_var->abort= 0;
}
}
if (thd->is_error() || (thd->variables.option_bits & OPTION_MASTER_SQL_ERROR))
trans_rollback_stmt(thd);
@ -6266,8 +6283,13 @@ TABLE_LIST *st_select_lex::add_table_to_list(THD *thd,
ptr->next_name_resolution_table= NULL;
/* Link table in global list (all used tables) */
lex->add_to_query_tables(ptr);
ptr->mdl_request.init(MDL_key::TABLE, ptr->db, ptr->table_name, mdl_type,
MDL_TRANSACTION);
// Pure table aliases do not need to be locked:
if (!test(table_options & TL_OPTION_ALIAS))
{
ptr->mdl_request.init(MDL_key::TABLE, ptr->db, ptr->table_name, mdl_type,
MDL_TRANSACTION);
}
DBUG_RETURN(ptr);
}