Re: [OpenSIPStack] GIPs integration to OpenSIPStack
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Re: [OpenSIPStack] GIPs integration to OpenSIPStack
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From: <jo...@op...> - 2008-08-14 01:35:45
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Firing up file search in visual studio for "Engine::Encrypt" C:\var\home\oss\devel\opensipstack\src\SIPMessage.cxx(8963): return Encryption::Engine::Encrypt( in, out ); C:\var\home\oss\devel\opensipstack\src\SIPUDPTransport.cxx(346): Encryption::Engine::Encrypt( in, out ); C:\var\home\oss\devel\opensipstack\src\opal\src\rtp\rtp.cxx(2201): Encryption::Engine::Encrypt( frame, out ); C:\var\home\oss\devel\opensipstack\src\opal\src\rtp\rtp.cxx(2244): Encryption::Engine::Encrypt( frame, out ); By process of elimination, I would say SIPUDPTransport is the place you should be looking at for SIP Encryption. The key for encryption is a static member variable of Encryption::Engine::m_Key. Just set it to the value you like and off you go. Manoj Kumar Joshi wrote: > I guess there is one way to use non-gips codecs also. I will do some more > research and answer you. Please also answer following . > >From what places Encryption related functions are being called (Like enable > encrytion, then encrypting and decrpting all SIP messages) Also if i > understand correctly threre is some key involved in order to encrypt RTP. > > Best Regards, > > Manoj > > -----Original Message----- > From: jo...@op... [mailto:joe...@gm...] > Sent: Wednesday, August 13, 2008 3:42 PM > To: ma...@as...; ope...@li... > Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack > > > If GIPs has its own RTP and media input/output channels, would GIPS be > willing to share it with other codecs as well if SDP negotiation ended > up with a none-GIPS codec? If not, then you wouldn't be able to re-use > the SoftPhone classes and instead implement your own subclass of > CallSession and CallSessionManager. If GIPS RTP and Audio Channels are > exposed to other codecs, then it would be doable by merely replacing > RTP_UDPSession with the GIPS counterpart and a GIPS wrapper to > PSoundChannel. > > > Manoj Kumar Joshi wrote: > >> Yes >> >> -----Original Message----- >> From: jo...@op... [mailto:joe...@gm...] >> Sent: Wednesday, August 13, 2008 2:26 PM >> To: ma...@as... >> Cc: ope...@li... >> Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack >> >> >> GIPS has its own RTP Stack, audio input/output channels? >> >> Manoj Kumar Joshi wrote: >> >> >>> Dear Joegen, >>> >>> GIPS is not only a set of few codec rather it has its own media >>> > processing > >>> system. The functions i specified in last email need to be called from >>> various points of opensipstack. If you can direct me from where all media >>> processing is done i will be able to understand better. >>> >>> In addition to that please also tell me following... >>> >>> >From what places Encryption related functions are being called (Like >>> >>> >> enable >> >> >>> encrytion, then encrypting and decrpting all SIP messages) Also if i >>> understand correctly threre is some key involved in order to encrypt RTP. >>> >>> >> If >> >> >>> you can plaese give me complete flow it will be a great help. >>> >>> Best Regards, >>> >>> Manoj >>> >>> -----Original Message----- >>> From: jo...@op... [mailto:joe...@gm...] >>> Sent: Wednesday, August 13, 2008 1:37 PM >>> To: ma...@as... >>> Cc: ope...@li... >>> Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack >>> >>> >>> Manoj Kumar Joshi wrote: >>> >>> >>> >>>> Actually in my opinion i will have to do more than codec inclusion. I am >>>> >>>> >>>> >>> not >>> >>> >>> >>>> sure if you have seen GIPS functions..they way they use is... >>>> >>>> (When Softphone is Registered) >>>> - We create an instance of GIPS using Initialize function. >>>> (When a new call is initiated i.e. INVITE is about to sent) >>>> - We create a new channel >>>> - We specify RTP listen port (Same is sent in SIP SDP) >>>> (When Session progress comes) >>>> - We start listening to RTP port. >>>> - We start playing incoming media. >>>> - We set the "Send IP" and "Send port" (That comes in session progress >>>> >>>> >>>> >>> SDP) >>> >>> >>> >>>> (When 200 OK comes) >>>> - We start sending RTP to Mediaproxy IP and port >>>> (Hangup) >>>> - We close all channels. >>>> >>>> >>>> >>>> >>> As far as i can tell this will be done for you by the OpenSIPStack >>> subsystem. Just register your codec to it. I do not know anything >>> about GIPs but if its the same as all other codecs which basically has >>> the ability to expose, encode and decode methods, then all you need is >>> plug it in. >>> >>> >>> >>> >>> >>> >>>> I have included a PDF file with this email. In page 31 there is a table >>>> which explains above points more. In Page 29 there is provision to add >>>> Encryption scheme. >>>> >>>> As i understand i might need to touch more than codec part in >>>> >>>> >> opensipstack >> >> >>>> but you will know better than me. >>>> >>>> >>>> >>>> >>>> >>>> >>> I was under the impression that you are referring to the XOR encryption >>> of opensipstack. If its another proprietary encryption other than srtp, >>> then you will have to give more info how it works and probably I could >>> point you to the right place where to hack it in OpenSIPStack. >>> >>> >>> >>> >>> >>>> -----Original Message----- >>>> From: jo...@op... [mailto:joe...@gm...] >>>> Sent: Wednesday, August 13, 2008 5:27 AM >>>> To: ma...@as...; ope...@li... >>>> Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack >>>> >>>> >>>> Manoj Kumar Joshi wrote: >>>> >>>> >>>> >>>> >>>>> Thanks for Replying joegen. I am on it already. What about ... >>>>> 1 - Starting Audio devices? >>>>> 2- Start/Stop RTP >>>>> >>>>> >>>>> >>>>> >>>>> >>>> Both these two should be seamless after you have successfully registered >>>> your codec. Unless, what you want is to rewrite everything and start >>>> from scratch? >>>> >>>> >>>> >>>> >>>>> I also need to understand how encryption is implemented as i would need >>>>> >>>>> >>>>> >>> to >>> >>> >>> >>>>> encrypt RTP also using same functions right? If i get an overall >>>>> > picture > >>>>> >>>>> >>>> it >>>> >>>> >>>> >>>> >>>>> would be real easy for me to device some flowchart on paper and proceed >>>>> >>>>> >>>>> >>>>> >>>> with >>>> >>>> >>>> >>>> >>>>> work. >>>>> >>>>> >>>>> >>>>> >>>>> >>>> Encryption is implemented in rtp.cxx and Encryption.cxx >>>> >>>> RTP_Session::SendReceiveStatus RTP_UDP::ReadDataOrControlPDU() >>>> BOOL RTP_UDP::WriteData() >>>> BOOL RTP_UDP::WriteControl() >>>> >>>> This too should be seamless after you introduced your codec. >>>> >>>> >>>> >>>> >>>>> Regards, >>>>> >>>>> Manoj >>>>> >>>>> -----Original Message----- >>>>> From: jo...@op... [mailto:joe...@gm...] >>>>> Sent: Tuesday, August 12, 2008 6:57 PM >>>>> To: ma...@as...; ope...@li... >>>>> Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack >>>>> >>>>> >>>>> The first thing you need to do is to implement your codec as a subclass >>>>> of OpalFramedTranscoder. You can check out how Speex is implemented >>>>> (speexcodec.h, speexcodec.cxx) and base you custom codec from there. >>>>> The next step is to call your codec registration macro in allcodecs.h. >>>>> >>>>> Manoj Kumar Joshi wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> Hello, >>>>>> >>>>>> I am looking forward to integrate GIPS media processing to >>>>>> >>>>>> >> opensipstack. >> >> >>>>>> Initially i want to incorporate it only on its Softphone interface and >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> build >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> ATLSip with it. >>>>>> >>>>>> I think i would need to make changes in SDP, Audio devices handling, >>>>>> Start/stop RTP and encryption. I tried to find some documentation on >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> openSBC >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> architecture but did not find much. Please give me some of your >>>>>> >>>>>> >> valuable >> >> >>>>>> directions on how should i start with this. >>>>>> >>>>>> Regards, >>>>>> >>>>>> Manoj >>>>>> >>>>>> >>>>>> ---------------------------------------------------------------------- >>>>>> > - > >> - >> >> >>> - >>> >>> >>> >>>>>> This SF.Net email is sponsored by the Moblin Your Move Developer's >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> challenge >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> Build the coolest Linux based applications with Moblin SDK & win great >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> prizes >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> Grand prize is a trip for two to an Open Source event anywhere in the >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> world >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >>>>>> _______________________________________________ >>>>>> opensipstack-devel mailing list >>>>>> ope...@li... >>>>>> https://lists.sourceforge.net/lists/listinfo/opensipstack-devel >>>>>> >>>>>> >>>>>> No virus found in this incoming message. >>>>>> Checked by AVG - http://www.avg.com >>>>>> Version: 8.0.138 / Virus Database: 270.6.1/1605 - Release Date: >>>>>> >>>>>> >>>>>> >>> 8/11/2008 >>> >>> >>> >>>>> 4:59 PM >>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Internal Virus Database is out-of-date. >>>>> Checked by AVG. >>>>> Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: >>>>> >>>>> >> 8/4/2008 >> >> >>>>> 7:23 PM >>>>> >>>>> >>>>> >>>>> ----------------------------------------------------------------------- >>>>> > - > >> - >> >> >>>>> This SF.Net email is sponsored by the Moblin Your Move Developer's >>>>> >>>>> >>>>> >>>>> >>>> challenge >>>> >>>> >>>> >>>> >>>>> Build the coolest Linux based applications with Moblin SDK & win great >>>>> >>>>> >>>>> >>>>> >>>> prizes >>>> >>>> >>>> >>>> >>>>> Grand prize is a trip for two to an Open Source event anywhere in the >>>>> >>>>> >>>>> >>>>> >>>> world >>>> >>>> >>>> >>>> >>>>> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >>>>> _______________________________________________ >>>>> opensipstack-devel mailing list >>>>> ope...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/opensipstack-devel >>>>> >>>>> >>>>> No virus found in this incoming message. >>>>> Checked by AVG - http://www.avg.com >>>>> Version: 8.0.138 / Virus Database: 270.6.1/1605 - Release Date: >>>>> >>>>> >> 8/11/2008 >> >> >>>> 4:59 PM >>>> >>>> >>>> >>>> >>>> -- >>>> Internal Virus Database is out-of-date. >>>> Checked by AVG. >>>> Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: >>>> > 8/4/2008 > >>>> 7:23 PM >>>> >>>> >>>> >>>> >>>> >>> -- >>> Internal Virus Database is out-of-date. >>> Checked by AVG. >>> Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: 8/4/2008 >>> 7:23 PM >>> >>> >>> >>> >>> >>> >>> >> >> -- >> Internal Virus Database is out-of-date. >> Checked by AVG. >> Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: 8/4/2008 >> 7:23 PM >> >> >> >> ------------------------------------------------------------------------- >> This SF.Net email is sponsored by the Moblin Your Move Developer's >> > challenge > >> Build the coolest Linux based applications with Moblin SDK & win great >> > prizes > >> Grand prize is a trip for two to an Open Source event anywhere in the >> > world > >> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> opensipstack-devel mailing list >> ope...@li... >> https://lists.sourceforge.net/lists/listinfo/opensipstack-devel >> >> >> No virus found in this incoming message. >> Checked by AVG - http://www.avg.com >> Version: 8.0.138 / Virus Database: 270.6.1/1608 - Release Date: 8/12/2008 >> > 4:59 PM > >> >> >> > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG. > Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: 8/4/2008 > 7:23 PM > > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > opensipstack-devel mailing list > ope...@li... > https://lists.sourceforge.net/lists/listinfo/opensipstack-devel > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.138 / Virus Database: 270.6.1/1608 - Release Date: 8/12/2008 4:59 PM > > > > |
