event_datagram Module

Table of Contents

1. Admin Guide
1.1. Overview
1.2. DATAGRAM events syntax
1.3. DATAGRAM socket syntax
1.4. Dependencies
1.4.1. OpenSIPS Modules
1.4.2. External Libraries or Applications
1.5. Exported Parameters
1.6. Exported Functions
1.7. Example
2. Frequently Asked Questions
3. Contributors
3.1. By Commit Statistics
3.2. By Commit Activity
4. Documentation
4.1. Contributors

List of Tables

3.1. Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)
3.2. Most recently active contributors(1) to this module

List of Examples

1.1. E_PIKE_BLOCKED event
1.2. UNIX socket
1.3. UDP socket

Chapter1.Admin Guide


This is a module which provides a UNIX/UDP SOCKET transport layer implementation for the Event Interface.

1.2.DATAGRAM events syntax

The raised events will follow the following grammar:

  • event = event_name (argument '\n')*

  • event_name = non-quoted_string'\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}

The event name can contain any non-quoted string character, but it is recommended to follow the syntax: E_MODULE_NAME_EXTRA_NAME

1.3.DATAGRAM socket syntax

There are two types of sockets used by this module, based on the sockets type. An UNIX socket should follow this syntax:

['unix:'] unix_socket_path

An UDP socket should follow this syntax:

'udp:' address ':' port


1.4.1.OpenSIPS Modules

The following modules must be loaded before this module:

  • No dependencies on other OpenSIPS modules.

1.4.2.External Libraries or Applications

The following libraries or applications must be installed before running OpenSIPS with this module loaded:

  • none

1.5.Exported Parameters

No parameter exported by this module.

1.6.Exported Functions

No function exported to be used from configuration file.


This is an example of an event raised by the pike module when it decides an ip should be blocked:

Example1.1.E_PIKE_BLOCKED event


Example1.2.UNIX socket


Example1.3.UDP socket


Chapter2.Frequently Asked Questions


Both UNIX and UDP type of socket can be used to notify the events?

Yes, you can use the both types.


What is the maximum lenght of a datagram event?

The maximum length of a datagram event is 65457 bytes.


Where can I find more about OpenSIPS?

Take a look at https://opensips.org/.


Where can I post a question about this module?

First at all check if your question was already answered on one of our mailing lists:

E-mails regarding any stable OpenSIPS release should be sent to and e-mails regarding development versions should be sent to .

If you want to keep the mail private, send it to .


How can I report a bug?

Please follow the guidelines provided at: https://github.com/OpenSIPS/opensips/issues.


3.1.By Commit Statistics

Table3.1.Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)

NameDevScoreCommitsLines ++Lines --
1. Razvan Crainea (@razvancrainea)241685437
2. Liviu Chircu (@liviuchircu)861229
3. Bogdan-Andrei Iancu (@bogdan-iancu)4231
4. Peter Lemenkov (@lemenkov)3111
5. Vlad Patrascu (@rvlad-patrascu)2110

(1) DevScore = author_commits + author_lines_added / (project_lines_added / project_commits) + author_lines_deleted / (project_lines_deleted / project_commits)

(2) including any documentation-related commits, excluding merge commits. Regarding imported patches/code, we do our best to count the work on behalf of the proper owner, as per the "fix_authors" and "mod_renames" arrays in opensips/doc/build-contrib.sh. If you identify any patches/commits which do not get properly attributed to you, please submit a pull request which extends "fix_authors" and/or "mod_renames".

(3) ignoring whitespace edits, renamed files and auto-generated files

3.2.By Commit Activity

Table3.2.Most recently active contributors(1) to this module

NameCommit Activity
1. Razvan Crainea (@razvancrainea)May 2011 - Sep 2019
2. Bogdan-Andrei Iancu (@bogdan-iancu)Oct 2014 - Apr 2019
3. Liviu Chircu (@liviuchircu)Mar 2014 - Nov 2018
4. Peter Lemenkov (@lemenkov)Jun 2018 - Jun 2018
5. Vlad Patrascu (@rvlad-patrascu)May 2017 - May 2017

(1) including any documentation-related commits, excluding merge commits



Last edited by: Peter Lemenkov (@lemenkov), Liviu Chircu (@liviuchircu), Razvan Crainea (@razvancrainea).

Documentation Copyrights:

Copyright 2011 www.opensips-solutions.com