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MMGEOIP module

This module is a lightweight wrapper for the MaxMind GeoIP API. It adds IP address-to-location lookup capability to OpenSIPS scripts.

Lookups are executed against the freely-available GeoLite City database; and the non-free GeoIP City database is drop-in compatible. All lookup fields provided by the API are accessible by the script. Visit the MaxMind website for more information on the location databases.

The following modules must be loaded before this module:

  • No dependencies on other OpenSIPS modules.

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

  • libGeoIP.

Path to either a GeoLite or GeoIP City database file.

Mandatory parameter.

Set 'mmgeoip_city_db_path' parameter
...
modparam("mmgeoip", "mmgeoip_city_db_path",
"/usr/share/GeoIP/GeoLiteCity.dat")
...

Databse memory caching options. The following options are available:

  • STANDARD - Read database from file system; least memory used;
  • MMAP_CACHE - Load database into mmap allocated memory; WARNING: this option will cause a segmentation fault if database file is changed at runtime!
  • MEM_CACHE_CHECK - Load database into memory; this mode checks for database updates; if database was modified, the file will be reloaded after 60 seconds; it will be slower than MMAP_CACHE but it will allow reloads;

Default value for this parameter is MMAP_CACHE.

Set 'cache_type' parameter
...
modparam("mmgeoip", "cache_type","MEM_CACHE_CHECK")
...

Looks up specified fields associated with IP address specified by the src. The resulting data are loaded in reverse order into the dst AVP.

src can be a pseudo-variable or AVP; and dst must be an AVP. fields defaults to “lon:lat,” and is a colon-delimited list of these elements:

  • lat Latitude
  • lon Longitude
  • cont Continent
  • cc Country Code
  • reg Region
  • city City
  • pc Postal Code
  • dma DMA Code
  • ac Area Code
  • TZ Time Zone

This function can be used from REQUEST_ROUTE, FAILURE_ROUTE, ONREPLY_ROUTE, BRANCH_ROUTE,ERROR_ROUTE, and LOCAL_ROUTE.

mmg_lookup usage
...
if(mmg_lookup("lon:lat","$si","$avp(lat_lon)")) {
xlog("L_INFO","Source IP latitude:$(avp(lat_lon)[0])\n");
xlog("L_INFO","Source IP longitude:$(avp(lat_lon)[1])\n");
};
...

It is not currently possible to load an updated location database without first stalling the server.

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

#NameDevScoreCommitsLines++Lines—
1.Bogdan-Andrei Iancu (@bogdan-iancu)973023
2.Kobi Eshun (@ekobi)934804
3.Stefan Darius (@dariusstefan)7418028
4.Razvan Crainea (@razvancrainea)6487
5.Liviu Chircu (@liviuchircu)531211
6.Sergio Gutierrez4253
7.Ionut Ionita (@ionutrazvanionita)31885
8.Anca Vamanu3162

(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

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

#NameCommit Activity
1.Stefan Darius (@dariusstefan)Jun 2026 - Jul 2026
2.Razvan Crainea (@razvancrainea)Jun 2011 - Jun 2026
3.Ionut Ionita (@ionutrazvanionita)May 2016 - May 2016
4.Liviu Chircu (@liviuchircu)Mar 2014 - Mar 2015
5.Bogdan-Andrei Iancu (@bogdan-iancu)Jul 2009 - Oct 2014
6.Kobi Eshun (@ekobi)Nov 2008 - Dec 2009
7.Anca VamanuSep 2009 - Sep 2009
8.Sergio GutierrezNov 2008 - Nov 2008

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

Last edited by: Razvan Crainea (@razvancrainea), Ionut Ionita (@ionutrazvanionita), Bogdan-Andrei Iancu (@bogdan-iancu), Kobi Eshun (@ekobi).

All documentation files (i.e. .md extension) are licensed under the Creative Common License 4.0