[h323plus] GNU Gatekeeper 4.3 released

Jan Willamowius jan at willamowius.de
Wed Nov 16 17:18:16 EST 2016


I'm happy to announce the release of GNU Gatekeeper 4.3.

This new version contains a number bug fixes and some security fixes.

Fuzzy testing surfaced methods to crash GnuGk remotely, causing at
least a denial of service. So all users are encouraged to update.

The most notable new feature are probably the events for Setup messages
on the status port so now you can see all calls. In addition, LuaAuth
has been given access to more information about received messages and
can end your status port sessions with Ctrl-C now.

Important bug fixes are in the H.460 NAT traversal code where sometimes
keep-alive intervals could be too long in older versions and a bug
where GnuGk might have missed port re-negotiations in some cases.

The IgnoreSignaledIPs port detection code also has a few bug fixes to
detect cases where it should be turned off automatically because its
either not needed because the parties use another form of NAT traversal
or non-symmetric ports where the detection algorithm may cause more harm
than good.

You can download the new version from

Please see the full change log below.


Changes from 4.2 to 4.3
- BUGFIX(ProxyChannel.cxx, gkh235.cxx, gkauth.h) fix crashes found with
- new authentication policies LuaPasswordAuth, HttpPasswordAuth
- BUGFIX(configure.in) fix check for LUA 5.2 or higher
- connection to the status port can now also be ended with Ctrl-C
- new switch [Routing::DNS] RewriteARQDestination= to preserve URLs in
- disable IgnoreSignaledIPs when one party is not using the same RTP
  ports for forward and reverse channels in same RTP session
- BUGFIX(RasTbl.cxx) don't allow higher TTL for H.460.18 registrations
  than set by H46018KeepAliveInterval= switch
- add variables message, srcInfo and vendor to LuaAuth
- print message on status port when Setup is received
- BUGFIX(ProxyChannel.cxx) disregard IgnoreSignaledIPs=1 switch when
  caller supports some form of NAT traversal (to avoid both sides
  waiting for first RTP packet)
- BUGFIX(ProxyChannel.cxx) enable H.245 tunneling for H.460.17 even
  when Innovaphone forgets the flag
- BUGFIX(ProxyChannel.cxx) make sure CRV is 0 for all RAS messages when
  using H.460.17 even when they relate to a call
- BUGFIX(ProxyChannel.cxx) re-do H.460.19 port detection when a new
  logical channel is opened on the same port
- print number of CPU cores and thread configuration on startup
- BUGFIX(RasTbl.cxx) fix display of H.460.17 for registrations on
  status port
- BUGFIX(ProxyChannel.cxx) fix dead lock causing reroutes to fail

Jan Willamowius, Founder of the GNU Gatekeeper Project
EMail  : jan at willamowius.de
Website: http://www.gnugk.org
Support: http://www.willamowius.com/gnugk-support.html

Relaxed Communications GmbH
Frahmredder 91
22393 Hamburg
Geschäftsführer: Jan Willamowius
HRB 125261 (Amtsgericht Hamburg)
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