[h323plus] GNU Gatekeeper 5.3 released

[Jan Willamowius]

Hi,

I have just released GNU Gatekeeper version 5.3.

You can download it from https://www.gnugk.org/h323download.html

This release has a number of new features as well as some important bug
fixes.

Whats new ?

- LRQ loop detection to optimize calls flows between multiple
  neighbor gatekeepers
  This new feature has the potential to significantly reduce the load
  on all gatekeepers and prevent "LRQ storms".

- new routing policy to set call destinations by querying HTTP
  or REST servers, see [Routing::Http]

- much improved support for SNMP 

- important bug fix for TLS encryption of signaling channels

- important bug fixes for H.460.18 (for H.245 tunneling and for
  multi-homed servers)

- performance optimization: this version can handle 5-10% more proxied
  calls on the same hardware 

- performance optimization: re-authenticate lightweight, additive
  registrations only when new aliases differ
  This significantly reduces the load on password databases.

Enjoy!


Full change log:

- BUGFIX(ProxyChannel.cxx) don't send H.245 address to tunneling
  H.460.18 endpoint, breaks call when H.245 multiplexing
- performance optimization: 5% faster UDP handling
- changed default: [SNMP] Implementation=PTlib
- remove unfinished Windows-SNMP implementation, use PTLib-SNMP on Windows
- support SET and GET-NEXT in PTLib-SNMP
- support SNMP sysUpTime when running as standalone agent
- BUGFIX(configure.in) LARGE_FDSET defaults to off
- new SNMP OID 1.3.6.1.4.1.27938.11.1.9 to query total bandwidth allocated to ongoing calls
- BUGFIX(ProxyChannel.cxx) fix hangup when making many TLS calls quickly one after another
- BUGFIX(RasSrv.cxx) don't require H.460.22 parameters in ARQs
- BUGFIX(ProxyChannel.cxx) fix TLS without LARGE_FDSET
- BUGFIX(ProxyChannel.cxx) don't send H.460.22 priority field in SCI
- BUGFIX(gkauth.cxx) free memory from cached and expired passwords
- re-authenticate lightweight, additive registrations only when new aliases differ
- remove switch [Proxy]DisableRTPQueueing, always disabled now
- new routing policy: http with config section [Routing::Http]
- BUGFIX(ProxyChannel.cxx) fix H.460.18 on multi-homed servers (SCI comes from the correct IP now)
- new switch to disable SNMP traps [SNMP] EnableTraps=0
- BUGFIX(ProxyChannel.cxx) don't throw SNMP trap on H.245 connection errors
  (causes crash under load with Net-SNMP)
- BUGFIX(snmp.cxx) shutdown GnuGk when SNMP agent can't be started
- BUGFIX(snmp.cxx) protect NetSNMP library calls with mutex
- changed default: ForwardResponse now defaults to 1 in [RasSrv::LRQFeatures] and [Neighbor::...]
- new feature: loop detection for LRQs [RasSrv::LRQFeatures] LoopDetection=1
- BUGFIX(Neighbor.cxx) some settings in [RasSrv::LRQFeatures] were ignored if not set in [Neighbor::...]


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

Relaxed Communications GmbH
Frahmredder 91
22393 Hamburg
Geschäftsführer: Jan Willamowius
HRB 125261 (Amtsgericht Hamburg)
USt-IdNr: DE286003584