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unixodbc Module Marco Lorrai Edited by Marco Lorrai Copyright � 2005, 2006 Marco Lorrai Revision History Revision $Revision$ $Date: 2008-08-06 12:08:33 +0200 (Mi, 06 Aug 2008) $ __________________________________________________________ Table of Contents 1. Admin Guide 1.1. Overview 1.2. Dependencies 1.2.1. Kamailio Modules 1.2.2. External Libraries or Applications 1.3. Exported Parameters 1.3.1. ping_interval (int) 1.3.2. auto_reconnect (int) 1.3.3. use_escape_common (int) 1.4. Exported Functions 1.5. Installation and Running 1.5.1. Installing 1.5.2. Configuring and Running 2. Developer Guide List of Examples 1.1. Set the "ping_interval" parameter 1.2. Set the "auto_reconnect" parameter 1.3. Set the "use_escape_common" parameter Chapter 1. Admin Guide 1.1. Overview This module allows to use the unixodbc package with Kamailio. It have been tested with mysql and the odbc connector, but it should work also with other database. The auth_db module works. For more information, see the project web page. To see what DB engines can be used via unixodbc, look at 1.2. Dependencies 1.2.1. Kamailio Modules The following modules must be loaded before this module: * No dependencies on other Kamailio modules. 1.2.2. External Libraries or Applications The following libraries or applications must be installed before running Kamailio with this module loaded: * None. 1.3. Exported Parameters 1.3.1. ping_interval (int) Sets the ping time interval. Default value is "300" seconds. Example 1.1. Set the "ping_interval" parameter ... modparam("db_unixodbc", "ping_interval", 600) ... 1.3.2. auto_reconnect (int) Turns on or off the auto_reconnect mode. Default value is "1", this means it is enabled. Example 1.2. Set the "auto_reconnect" parameter ... modparam("db_unixodbc", "auto_reconnect", 0) ... 1.3.3. use_escape_common (int) Escape values in query using internal escape_common() function. It escapes single quote ''', double quote '"', backslash '\', and NULL characters. You should enable this parameter if you know that the ODBC driver considers the above characters as special (for marking begin and end of a value, escape other characters ...). It prevents against SQL injection. Default value is "0" (0 = disabled; 1 = enabled). Example 1.3. Set the "use_escape_common" parameter ... modparam("db_unixodbc", "use_escape_common", 1) ... 1.4. Exported Functions NONE 1.5. Installation and Running 1.5.1. Installing Prerequirement: you should first install unixodbc (or another program that implements the odbc standard, such iodbc), your database, and the right connector. Set the DSN in the odbc.ini file and the connector drivers in the odbcinst.ini file. 1.5.2. Configuring and Running In the openser.conf file, add the line: .... loadmodule "/usr/local/lib/kamailio/modules/" .... You should also uncomment this: .... loadmodule "/usr/local/lib/kamailio/modules/" loadmodule "/usr/local/lib/kamailio/modules/" modparam("usrloc", "db_mode", 2) modparam("auth_db", "calculate_ha1", yes) modparam("auth_db", "password_column", "password") .... and setting the DSN specified in the odbc.ini, inserting this with the url adding this line: .... modparam("usrloc|auth_db", "db_url", "unixodbc://openser:openserrw@localhost/my_dsn") .... replacing my_dsn with the correct value. HINT: if unixodbc don't want to connect to mysql server, try restarting mysql server with: shell>safe_mysqld --user=mysql --socket=/var/lib/mysql/mysql.sock The connector search the socket in /var/lib/mysql/mysql.sock and not in /tmp/mysql.sock Chapter 2. Developer Guide The module implements the Kamailio DB API, in order to be used by other modules.