hi does someone familier with any simple paper/presentation about SIP over streaming transport like TCP/TLS please don't refer me to the RFC ... in general, regarding TCP my quastion is how does the transport "know" about the end of each msg, i.e. how streaming is used to send/recieve msg? is there any marker for beginning/end of msg? about TLS, is there anything diffrent then regular TCP inside the msg beside the Socket handeling which is done by the basic layer (i.e. openssl of SecureSocket is the symbian case?) thanks

jay bing schrieb: > hi > > does someone familier with any simple paper/presentation about SIP over > streaming transport like TCP/TLS > please don't refer me to the RFC > ... > > in general, regarding TCP my quastion is how does the transport "know" > about the end of each msg, i.e. how streaming is used to send/recieve msg? > > is there any marker for beginning/end of msg? You just read fromt the socket until double CRLF is received (that's the end of the headers). Then check the value of the content-length header and read that many bytes from the socket. > about TLS, is there anything diffrent then regular TCP inside the msg > beside the Socket handeling which is done by the basic layer (i.e. > openssl of SecureSocket is the symbian case?) not really, except that the contact header and via will have TLS instead of TCP and the application should do some certificate validation (e.g. if the domain in the certificate is the same as the domain in the request URI). regards klaus > > thanks > > > > ------------------------------------------------------------------------ > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org

thanks for your replay. another quick quiastion: about TCP/TLS msg parsing: does the pjsip_transport is responsible for identifing the msg boundries (like u describde) or some upper layer? about TLS: does the transport layer responsible for setting the contact header and via or some upper layer? thanks again, jay 2009/8/10 Klaus Darilion <klaus.mailinglists@pernau.at> > > > jay bing schrieb: > >> hi >> does someone familier with any simple paper/presentation about SIP over >> streaming transport like TCP/TLS >> please don't refer me to the RFC >> ... >> in general, regarding TCP my quastion is how does the transport "know" >> about the end of each msg, i.e. how streaming is used to send/recieve msg? >> is there any marker for beginning/end of msg? >> > > You just read fromt the socket until double CRLF is received (that's the > end of the headers). Then check the value of the content-length header and > read that many bytes from the socket. > > about TLS, is there anything diffrent then regular TCP inside the msg >> beside the Socket handeling which is done by the basic layer (i.e. openssl >> of SecureSocket is the symbian case?) >> > > not really, except that the contact header and via will have TLS instead of > TCP and the application should do some certificate validation (e.g. if the > domain in the certificate is the same as the domain in the request URI). > > regards > klaus > > thanks >> >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org >> >> pjsip mailing list >> pjsip@lists.pjsip.org >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >> > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >

 jay bing schrieb:

     hi
      does someone familier with any simple paper/presentation about
     SIP over streaming transport like TCP/TLS
     please don't refer me to the RFC
     ...
      in general, regarding TCP my quastion is how does the transport
     "know" about the end of each msg, i.e. how streaming is used to
     send/recieve msg?
      is there any marker for beginning/end of msg?


 You just read fromt the socket until double CRLF is received (that's
 the end of the headers). Then check the value of the content-length
 header and read that many bytes from the socket.


     about TLS, is there anything diffrent then regular TCP inside
     the msg beside the Socket handeling which is done by the basic
     layer (i.e. openssl of SecureSocket is the symbian case?)


 not really, except that the contact header and via will have TLS
 instead of TCP and the application should do some certificate
 validation (e.g. if the domain in the certificate is the same as the
 domain in the request URI).

 regards
 klaus

      thanks
      

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 _______________________________________________
 Visit our blog: http://blog.pjsip.org <http://blog.pjsip.org/>

 pjsip mailing list
 pjsip@lists.pjsip.org <mailto:pjsip@lists.pjsip.org>
 http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org

jay bing schrieb: > thanks for your replay. > another quick quiastion: > about TCP/TLS msg parsing: does the pjsip_transport is responsible for > identifing the msg boundries (like u describde) or some upper layer? > about TLS: does the transport layer responsible for setting the contact > header and via or some upper layer? Sorry, I don't know. > > thanks again, > jay > > > > > > 2009/8/10 Klaus Darilion <klaus.mailinglists@pernau.at > <mailto:klaus.mailinglists@pernau.at>> > > > > jay bing schrieb: > > hi > does someone familier with any simple paper/presentation about > SIP over streaming transport like TCP/TLS > please don't refer me to the RFC > ... > in general, regarding TCP my quastion is how does the transport > "know" about the end of each msg, i.e. how streaming is used to > send/recieve msg? > is there any marker for beginning/end of msg? > > > You just read fromt the socket until double CRLF is received (that's > the end of the headers). Then check the value of the content-length > header and read that many bytes from the socket. > > > about TLS, is there anything diffrent then regular TCP inside > the msg beside the Socket handeling which is done by the basic > layer (i.e. openssl of SecureSocket is the symbian case?) > > > not really, except that the contact header and via will have TLS > instead of TCP and the application should do some certificate > validation (e.g. if the domain in the certificate is the same as the > domain in the request URI). > > regards > klaus > > thanks > > > ------------------------------------------------------------------------ > > _______________________________________________ > Visit our blog: http://blog.pjsip.org <http://blog.pjsip.org/> > > pjsip mailing list > pjsip@lists.pjsip.org <mailto:pjsip@lists.pjsip.org> > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org <http://blog.pjsip.org/> > > pjsip mailing list > pjsip@lists.pjsip.org <mailto:pjsip@lists.pjsip.org> > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > > ------------------------------------------------------------------------ > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org