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GNU Gatekeeper 3.7 has been released
by Jan Willamowius 15 Aug '14

15 Aug '14

Hi, I'm happy to announce version 3.7 of the GNU Gatekeeper. http://www.gnugk.org/h323download.html This is mainly a bugfix release that corrects a number of errors and crashes (see below). Please follow these compile instructions: http://www.gnugk.org/compiling-gnugk.html Enjoy! Detailed change log: - allow Comment= in all sections - new status port command: "debug cfg all" to print the full configuration - stub code to fake support for Avaya 2.16.840.1.114187.1.3 authentication (disabled by default) - BUGFIX(Neighbor.cxx) fix outbound rules for GWRewriteE164 with neighbors - BUGFIX(RasSrv.cxx) fix crash on shutdown - BUGFIX(gkauth.cxx) for passwort auth look at correct src or dest info - BUGFIX(Toolkit.cxx) more flexible column handling for [SQLConfig] PermanentEndpountsQuery, document priority and vendor info setting - BUGFIX(gksql_sqlite.cxx) return empty string for NULL columns, like the other DB drivers do - BUGFIX(RasTbl.cxx) fix formatting of PrintAllRegistrations and PrintAllRegistrationsVerbose - BUGFIX(GkStatus.cxx) better handling when status clients don't quit properly - BUGFIX(Toolkit.cxx) fix selection of reply address for IPv6 -- Jan Willamowius, Founder of the GNU Gatekeeper Project EMail : jan(a)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) USt-IdNr: DE286003584

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Re: [h323plus] [Openh323gk-users] Using LibreSSL instead of OpenSSL with GnuGk / H323Plus / PTLib
by Jan Willamowius 29 Jul '14

29 Jul '14

It would be nice if PTLib would do a pgk-config check for "openssl" or "libressl" to activate the OpenSSL code. I simply named the pgk-config file for LibreSSL "openssl.pc" to work around that. To use GnuTLS for the H.323 media encryption in GnuGk and H323Plus, PSSLxxx wrappers won't help. The OpenSSL compatibility mode of GnuTLS also isn't enough. regards, Jan Robert Jongbloed wrote: > Excellent! > > Are there any tweaks to the configure.ac that should happen to find > LibreSSL? > > > And re GnuTLS, the whole point of the PSSLxxx class wrappers in PTLib > was to allow for use of other API's to OpenSSL/LibreSSL. At least as a > configure/compile time option. One of these years, someone may cough up > the time/money to actually do the implementation .... > > *Robert Jongbloed* > OPAL/OpenH323/PTLib Architect and Co-founder. > Commercial support at http://www.voxlucida.com.au > /Travelling, so email responses may be slow!/ > > Robert. On 29/07/2014 5:30 pm, Jan Willamowius wrote: > > Hi, > > > > with the bugs recently found in OpenSSL, there is some concern how many > > more issues still lurk in the old and crufty OpenSSL code. There is a > > great effort by some OpenBSD developers to fork OpenSSL into > > "LibreSSL" (www.libressl.org) and clean up the code while keeping the > > public interface stable. > > > > I did a quick check and can report that GnuGk / H323Plus / PTLib > > compile well with LibreSSL instead of OpenSSL. All I had to do was > > provide a pkg-config file. So now we have a choice which library to use. > > > > I used LibreSSL Portable 2.0.3 for my test. > > > > Another interesting project would be to use GnuTLS as a replacement, > > but thats going to require a number of code changes on our side. > > > > Regards, > > Jan > > > -- Jan Willamowius, jan(a)willamowius.de, http://www.gnugk.org/

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Using LibreSSL instead of OpenSSL with GnuGk / H323Plus / PTLib
by Jan Willamowius 29 Jul '14

29 Jul '14

Hi, with the bugs recently found in OpenSSL, there is some concern how many more issues still lurk in the old and crufty OpenSSL code. There is a great effort by some OpenBSD developers to fork OpenSSL into "LibreSSL" (www.libressl.org) and clean up the code while keeping the public interface stable. I did a quick check and can report that GnuGk / H323Plus / PTLib compile well with LibreSSL instead of OpenSSL. All I had to do was provide a pkg-config file. So now we have a choice which library to use. I used LibreSSL Portable 2.0.3 for my test. Another interesting project would be to use GnuTLS as a replacement, but thats going to require a number of code changes on our side. Regards, Jan -- Jan Willamowius, Founder of the GNU Gatekeeper Project EMail : jan(a)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) USt-IdNr: DE286003584

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FW: [h323-announce] H.323 Update Following the Sapporo Meeting
by Simon Horne 19 Jul '14

19 Jul '14

FYI The updates will be included in H.323v8 Simon From: h323-announce-bounces(a)lists.packetizer.com [mailto:h323-announce-bounces@lists.packetizer.com] On Behalf Of Paul E. Jones Sent: Sunday, July 20, 2014 8:19 AM To: H.323 Announce List Subject: [h323-announce] H.323 Update Following the Sapporo Meeting <http://www.packetizer.com> Folks, The most recent ITU-T SG16 meeting was held in Sapporo, Japan 30 June - 11 July 2014. Perhaps most significant at this meeting relating to H.323 is the fact that we approved two new Recommendations related to Telepresence systems: * ITU-T Rec. F.734, "Definitions, requirements, and use cases for Telepresence Systems" * ITU-T Rec. H.420, "Telepresence System Architecture" Progress was also made on revisions to each of the core H.323 Recommendations, namely H.323, H.225.0, and H.245. Some of the enhancements introduced are to support Telepresence systems, including the CLUE signaling channel. Support for the WebRTC Data Channel was also introduced in H.245. Of course, the work on Telepresence and WebRTC support is not complete, but progress is being made. We also adopted baseline text for the end-to-end Session Identifier, which is work that was initiated a few years ago. The work is being progressed in both the IETF and ITU in parallel, with the IETF work nearing completion. This work will allow for the identification of a communication session end-to-end from the point of origin to the point of termination, even if the call is carried over a mixture of H.323 and SIP networks. I have updated the document status page here: http://www.packetizer.com/ipmc/h323/doc_status.html. This shows the current status of the various H.323-related work items in ITU-T SG16. Best regards, Paul E. Jones http://paulej.com/

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Avaya Authentication methods
by Jan Willamowius 27 Jun '14

27 Jun '14

Hi, I was just discussing with Simon if anybody would need the Avaya authentication procedures OID 1.3.14.3.2.6 and OID 2.16.840.1.114187.1.3 in H323Plus. Both are said to be DES based, so they don't offer much security, but they can be useful with legacy equipment. I have an almost complete implementation for OID 1.3.14.3.2.6 in GnuGk, that just needs a little fleshing out for the encryption part which GnuGk doesn't need, before it can be moved into H323Plus. For OID 2.16.840.1.114187.1.3 I have some stub code that allows endpoints to register with GnuGk, but some crypto details are still uncertain. So, if anybody needs this stuff, please speak up. ;-) Cheers, Jan -- Jan Willamowius, Founder of the GNU Gatekeeper Project EMail : jan(a)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) USt-IdNr: DE286003584

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GNU Gatekeeper 3.6 has been released
by Jan Willamowius 07 May '14

07 May '14

Hi, I'm happy to announce version 3.6 of the GNU Gatekeeper. http://www.gnugk.org/h323download.html This version contains support for Polycom's domain##alias addressing, a new policy to route by URI prefix, better config checking, fixes for H.460.19 port detection and a number of other bugfixes and smaller features. I'm trying to cut down on the time I have to spend on each release, so I will only provide executable to support client for this version. Please follow these instructions to compile GnuGk yourself: http://www.gnugk.org/compiling-gnugk.html Detailed change log: - support Polycom's domain##alias addressing in DNS policy - new command line switch: --strict (don't start with config errors) - new routing policy [Routing::URIService] to define service specific URI routing policy. - allow SendTo= without AlternateGKs= switch - new switch [EP::...] ForceGateway=1 to treat an endpoint as a gateway - new switch [EP::...] AddCallingPartyToSourceAddress=1 - new switch [EP::...] DisableCallCreditCapabilities=1 - verify the correct payloadType on H.460.19 keep-alive packets (disable with [Proxy] CheckH46019KeepAlivePT=0) - support libssh 0.6.x - BUGFIX(ProxyChannel.cxx) fix memory leak on TLS errors - BUGFIX(RasTbl.cxx) use 64bit numbers for AddNumbers= ranges - BUGFIX(RasSrv.cxx) fill destCallSignallAddress in answer ACF in direct mode - BUGFIX(RasSrv.cxx) fix callSignalPort in LCF when H.460.22 is enabled - BUGFIX(ProxyChannel.cxx) read ProxyHandlerHighPrio switch earlier - BUGFIX(ProxyChannel.cxx) wait 4 sec before using regular RTP packets for H.460.19 port detection - BUGFIX(gk.cxx) small fixes for MacOSX -- Jan Willamowius, Founder of the GNU Gatekeeper Project EMail : jan(a)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) USt-IdNr: DE286003584

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Null pointer reference
by Ankur Deep Jaiswal 05 May '14

05 May '14

Hi, I am using H323plus v 1.26.3. With the External rtp example, I am getting a 'Assertion fail: Null pointer reference, file channels.cxx, line 629, Error=22' while trying to open a channel with capability G.711-ALaw-64k. it happens at H323_ExternalRTPChannel::OnSendingPDU at line number 1329. Help appreciated -- Ankur Deep Jaiswal

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OnConnectionEstablished fired twice in the same call
by Ankur Deep Jaiswal 08 Apr '14

08 Apr '14

Hi, I was testing h323plus v 1.26.0 using sample/simple. i have come across a scenario where OnConnectionEstablished is being called twice in the same call. i am attaching a level 4 trace file. Help appreciated. -- Ankur Deep Jaiswal

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report bugs and seek help
by 李银城 06 Apr '14

06 Apr '14

Dear H323plus Team: I want to report some bugs(maybe) and seek help, for these days I'm installing the package and come across some problem. The first thing I want to mention is that when compiling the h235auth.cxx file, error occurs: [CC] h235auth.cxx h235auth.cxx: In member function ‘void H235Authenticators::PrepareSignalPDU(unsigned int, PASN_Array&, PASN_Array&, PINDEX) const’: h235auth.cxx:449:39: error: ‘m_maxTokenLength’ was not declared in this scope PINDEX keyLength = (max_keyLength > m_maxTokenLength) ? m_maxTokenLength : max_keyLength; I trace the source file and find that "m_maxTokenLength" actually defined in h235auth.h, but with a precompile header #ifdef H323_H235. Problem is that the function error occuring function PrepareSignalPDU doesn't wrapped by that header and use the wrapped variables which may not be defined. So if one can make the H323_H235 available, it will be cured. I trace through and find that this header require #define OPENSSL, so I install the package on windows(XP) then it really compile well. But on my Ubuntu, still fails. So I make the undefind variables out the precompile section and then the "make" progresses smoothly but I don't know what consequences will be. Secondly, I want to enable h263 feature, it requires the ffmpeg codec and I install the newest version 2.2. But it didn't work. Configure says: checking for LIBAVCODEC... yes configure: libavcodec stack align hack disabled checking for h263p_encoder in -lavcodec... no checking for h263p_encoder in -lavcodec... (cached) no checking for mpeg4_encoder in -lavcodec... no checking for h264_decoder in -lavcodec... no I think the "no" checks are the causes. Is " -lavcodec" are passed to ffmpeg as its arguments to check if it support the codecs? I check the ffmpeg's option and only find that ffmpeg has a similar option "codec" which list out all its suport codes where I find h264. There goes what I want to seek help: 1. The oh323tut require a wav file. What's its effects, a tmp file as a buff? The web says it requires the format 16 bit with 8000 Hz and I use cool edit software to produce such a wav file but the program still report wrong file format error. So I got stuck. 2. How can I catch video from my computer camera. I can't run the h323plus sample "simple", it crash when come to the call PVideoInputDevice::GetDeviceCapabilities in arg initialization. I debug and found that the ptlib function calls in a cycle: A call B; B call C; C call A. Then the stack runs out. So, what's the trouble here? How can I get my device name pass it to the program instead of "*"? Last but not least, I want to ask Is there any detailed tutorial to learn. I search the net using google, the valuable one is almost only the oh323tut. But the oh323tut is a little too simple. It only shows the audio feature. How is the video? The simple sample shows an example I guess I can try to understand. Is there any related code or project using H323plus, for example using glade to show the video. Best regards Yincheng Li South China Normal University ------------------

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help
by 李银城 06 Apr '14

06 Apr '14

Dear H323plus Team: I want to report some bugs(maybe) and seek help, for these days I'm installing the package and come across some problem. The first thing I want to mention is that when compiling the h235auth.cxx file, error occurs: [CC] h235auth.cxx h235auth.cxx: In member function ‘void H235Authenticators::PrepareSignalPDU(unsigned int, PASN_Array&, PASN_Array&, PINDEX) const’: h235auth.cxx:449:39: error: ‘m_maxTokenLength’ was not declared in this scope PINDEX keyLength = (max_keyLength > m_maxTokenLength) ? m_maxTokenLength : max_keyLength; I trace the source file and find that "m_maxTokenLength" actually defined in h235auth.h, but with a precompile header #ifdef H323_H235. Problem is that the function error occuring function PrepareSignalPDU doesn't wrapped by that header and use the wrapped variables which may not be defined. So if one can make the H323_H235 available, it will be cured. I trace through and find that this header require #define OPENSSL, so I install the package on windows(XP) then it really compile well. But on my Ubuntu, still fails. So I make the undefind variables out the precompile section and then the "make" progresses smoothly but I don't know what consequences will be. Secondly, I want to enable h263 feature, it requires the ffmpeg codec and I install the newest version 2.2. But it didn't work. Configure says: checking for LIBAVCODEC... yes configure: libavcodec stack align hack disabled checking for h263p_encoder in -lavcodec... no checking for h263p_encoder in -lavcodec... (cached) no checking for mpeg4_encoder in -lavcodec... no checking for h264_decoder in -lavcodec... no I think the "no" checks are the causes. Is " -lavcodec" are passed to ffmpeg as its arguments to check if it support the codecs? I check the ffmpeg's option and only find that ffmpeg has a similar option "codec" which list out all its suport codes where I find h264. There goes what I want to seek help: 1. The oh323tut require a wav file. What's its effects, a tmp file as a buff? The web says it requires the format 16 bit with 8000 Hz and I use cool edit software to produce such a wav file but the program still report wrong file format error. So I got stuck. 2. How can I catch video from my computer camera. I can't run the h323plus sample "simple", it crash when come to the call PVideoInputDevice::GetDeviceCapabilities in arg initialization. I debug and found that the ptlib function calls in a cycle: A call B; B call C; C call A. Then the stack runs out. So, what's the trouble here? How can I get my device name pass it to the program instead of "*"? If pass -v option with "/dev/video0" or "USB2.0 Camera" it will says that: Using video driver USB2.0 Camera No Video Grabber available Disabling Video Support! And the audio also has some problem: Could not open sound device Null Audio - Check permissions or full duplex capability. Then I type c: Using video driver USB2.0 Camera No Video Grabber available Disabling Video Support! Last but not least, I want to ask Is there any detailed tutorial to learn. I search the net using google, the valuable one is almost only the oh323tut. But the oh323tut is a little too simple. It only shows the audio feature. How is the video? The simple sample shows an example I guess I can try to understand. Is there any related code or project using H323plus, for example using glade to show the video. A big job without a good explanation is less power full then something is useful and simple. By contract, Glade has many tutorial if one searches the net. I really really get stuck. Hope to receive from you! Thank you!! Best regards Yincheng Li South China Normal University ------------------

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