mi_fifo Module

Bogdan-Andrei Iancu

   Voice Sistem SRL

Edited by

Bogdan-Andrei Iancu

   Copyright © 2006 Voice Sistem SRL
     __________________________________________________________________

   Table of Contents

   1. Admin Guide

        1. Overview
        2. FIFO command syntax
        3. Dependencies

              3.1. Kamailio Modules
              3.2. External Libraries or Applications

        4. Parameters

              4.1. fifo_name (string)
              4.2. fifo_mode (integer)
              4.3. fifo_group (integer) fifo_group (string)
              4.4. fifo_user (integer) fifo_group (string)
              4.5. reply_dir (string)
              4.6. reply_indent (string)

        5. Functions
        6. Example

   List of Examples

   1.1. Set fifo_name parameter
   1.2. Set fifo_mode parameter
   1.3. Set fifo_group parameter
   1.4. Set fifo_user parameter
   1.5. Set reply_dir parameter
   1.6. Set reply_indent parameter
   1.7. FIFO request

Chapter 1. Admin Guide

   Table of Contents

   1. Overview
   2. FIFO command syntax
   3. Dependencies

        3.1. Kamailio Modules
        3.2. External Libraries or Applications

   4. Parameters

        4.1. fifo_name (string)
        4.2. fifo_mode (integer)
        4.3. fifo_group (integer) fifo_group (string)
        4.4. fifo_user (integer) fifo_group (string)
        4.5. reply_dir (string)
        4.6. reply_indent (string)

   5. Functions
   6. Example

1. Overview

   This is a module which provides a FIFO transport layer implementation
   for the Management Interface.

2. FIFO command syntax

   The external commands issued via the FIFO interface must follow the
   following syntax:
     * request = first_line argument*
     * first_line = ':'command_name':'reply_fifo'\n'
     * argument = (arg_name '::' (arg_value)? ) | (arg_value)
     * arg_name = not-quoted_string
     * arg_value = not-quoted_string | '"' string '"'
     * not-quoted_string = string - {',",\n,\r}

3. Dependencies

   3.1. Kamailio Modules
   3.2. External Libraries or Applications

3.1. Kamailio Modules

   The following modules must be loaded before this module:
     * No dependencies on other Kamailio modules.

3.2. External Libraries or Applications

   The following libraries or applications must be installed before
   running Kamailio with this module loaded:
     * none

4. Parameters

   4.1. fifo_name (string)
   4.2. fifo_mode (integer)
   4.3. fifo_group (integer) fifo_group (string)
   4.4. fifo_user (integer) fifo_group (string)
   4.5. reply_dir (string)
   4.6. reply_indent (string)

4.1. fifo_name (string)

   The name of the FIFO file to be created for listening and reading
   external commands. If the value is a file name or does not start with
   '/', the FIFO file is created in the 'run_dir'. The 'run_dir' is a core
   parameter that can specify where to create runtime files, its default
   value is '/var/run/kamailio/'.

   Default value is 'Kamailio_fifo'.

   The full path used by default for FIFO file is
   '/var/run/kamailio/Kamailio_fifo'

   Example 1.1. Set fifo_name parameter
...
modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")
...

4.2. fifo_mode (integer)

   Permission to be used for creating the listening FIFO file. It follows
   the UNIX conventions.

   Default value is 0660 (rw-rw----).

   Example 1.2. Set fifo_mode parameter
...
modparam("mi_fifo", "fifo_mode", 0600)
...

4.3. fifo_group (integer) fifo_group (string)

   System Group to be used for creating the listening FIFO file.

   Default value is the inherited one (process group).

   Example 1.3. Set fifo_group parameter
...
modparam("mi_fifo", "fifo_group", 0)
modparam("mi_fifo", "fifo_group", "root")
...

4.4. fifo_user (integer) fifo_group (string)

   System User to be used for creating the listening FIFO file.

   Default value is the inherited one (process user).

   Example 1.4. Set fifo_user parameter
...
modparam("mi_fifo", "fifo_user", 0)
modparam("mi_fifo", "fifo_user", "root")
...

4.5. reply_dir (string)

   Directory to be used for creating the reply FIFO files.

   Default value is “/tmp/”

   Example 1.5. Set reply_dir parameter
...
modparam("mi_fifo", "reply_dir", "/home/kamailio/tmp/")
...

4.6. reply_indent (string)

   Strings to be used for line indentation. As the MI data structure is
   tree oriented, the depth level will be printed as indentation.

   Default value is “"\t" (TAB)”.

   Example 1.6. Set reply_indent parameter
...
modparam("mi_fifo", "reply_indent", "    ")
...

5. Functions

   No function exported to be used from configuration file.

6. Example

   This is an example showing the FIFO format for the “get_statistics
   dialog: tm:” MI command response.

   Example 1.7. FIFO request
:get_statistics:reply_fifo\n
dialog:\n
tm:\n
\n
