Posts by author laforge

OsmocomBB RSSI monitor firmware

OsmocomBB team member Andreas Eversberg has been working on a new RSSI monitor firmware application within OsmocomBB.

Using this firmware, it is possible to monitor the RSSI of individual ARFCNs or even the entire spectrum.

ARFCN view Spectrum view

Depending on the hardware capabilities (e.g. Hardware/FilterReplacement), it is also possible to measure the uplink RSSI.

More details are available at rssi.bin.

The current status of this firmware is available from the "laforge/monitor" branch in git, but is expected to be merged soon into master. via IPv6

All osmocom servers / services are now IPv6 enabled.

This means we have AAAA as well as the A records in DNS for our hostnames like, and others.

If you experience any problems connecting to our servers, please contact with a detailed problem description.

New commit log mailing list for all git repositories

We haven't had a functioning commit log mailinglist since mid-2009, when the revision control system of openbsc was converted from svn to git.

Especially today, with the large number of separate git repositories on, it is very easy to loose track of what other developers are doing.

The new mailing list 'osmocom-commitlog' (renamed from openbsc-commits) will receive updates from all repositories on

Feel free to subscribe at

  • Posted: 2011-03-25 12:56 (Updated: 2011-03-25 12:59)
  • Author: laforge
  • Categories: git
  • Comments (0)

Problems with our git repositories

We're sorry to report that there are some problems with our git repositories at the moment, resulting in 'early EOF / index-pack failed' messages when users are attempting to clone one of our repositories.

The problem has been thoroughly analyzed, but even after many hours of analysis, no solution has been found yet. Your best chance is to keep re-trying the clone, in 5-10% of the cases it will succeed.

More technical details are available at this posting to the git mailing list:

Sorry for the inconvenience.

Osmocom TETRA project goes public

Today, we publicly disclose the current development version of a TETRA (Terrestrial Trunked Radio) demodulator + PHY + MAC code.

The project home page, including links to source code and mailing list is

After GSM and DECT, finally yet another popular wireless communications protocol will see a Free Software implementation.

Slides of sideband GSM sniffing talk at 27c3

Sylvain Munaut was presenting on Wideband GSM Sniffing at the 27th annual Chaos Communication Congress, where he was using a series of four phones running OsmocomBB as a GSM packet sniffer.

The slides are available from

A preliminary video recording (simple dump of the stream) can be found at from this mirror

Please note: This talk was using a lot of custom software that has not been released and is not part of OsmocomBB. For more details, read this mailing list post by Sylvain Munaut

Slides of OsmocomBB talk at 27C3

At the 27th Chaos Communication Congress, Harald Welte and Steve Markgraf have presented on OsmocomBB.

You can find the slides linked from and a preliminary video recording at this mirror

The official (cut) version of the video will be released at some later point in time.

This is not a real blog, just a RSS feed for updates

Like in the OpenBSC case, this OsmocomBB blog is merely intended as a news feed.