use libpcap (and bind it to FPC and share with us all :)) and then you can sniff packets (that's the easiest way I know).
Ido http://ik.homelinux.org/ On Tue, Jan 5, 2010 at 16:48, lloyd thomas <lloydi...@googlemail.com> wrote: > Also came across this which uses pcap, but seems to be delphi only > http://www.magsys.co.uk/delphi/magmonsock.asp > > is there something similar for fpc? > > 2010/1/5 lloyd thomas <lloydi...@googlemail.com> > > OK. I wish to monitor and record calls between a SIP endpoint and SIP >> Gateway. At the moment I am doing that by connecting the SIP endpoint and my >> machine to an ethernet hub so that I can see all the traffic. >> In the first instance I just need to correctly capture, read and >> interprete the SIP messages so that I can make an informed decision which >> RDP packets to capture. >> >> Then I suppose I will have an even harder task capturing the RDP packets >> and joining both legs together (my coding skills is not great)! >> >> Lloydie T >> >> 2010/1/5 ik <ido...@gmail.com> >> >> Hello, >>> >>> SIP first of all uses UDP most of the times (and rarely TCP) . >>> It only create a tunnel that other protocols such as RDP and SDP are >>> going inside. >>> >>> Can you explain a bit more what exactly do you wish to implement (i'm not >>> sure that I understand) ? >>> >>> Ido >>> >>> http://ik.homelinux.org/ >>> >>> >>> On Tue, Jan 5, 2010 at 15:08, lloyd thomas <lloydi...@googlemail.com>wrote: >>> >>>> Please forgive my ignorance regarding the project I am about to embark >>>> on. >>>> Need some advice on Lnet and capturing SIP RTP data to file. In the >>>> first instance I just need to work with the sip messages. I believe the SIP >>>> messages are similar to HTTP. I am using wireshark to understand how the >>>> SIP >>>> messages are processed, but I am not sure how to capture and read each >>>> frame >>>> (wireshark speak) using Lnet. >>>> >>>> (FYI: >>>> http://en.wikipedia.org/wiki/Session_Initiation_Protocol#SIP_network_elements >>>> ) >>>> >>>> For instance the following is from frame 12 (935 bytes) >>>> >>>> ---------------------------------------------------------------------------------------------- >>>> INVITE sip:1...@192.168.91.200 <sip%3a1...@192.168.91.200> SIP/2.0 >>>> Via:SIP/2.0/UDP 192.168.91.190:5060;rport;branch=z9hG4bK83570061 >>>> From:"Lloyd" <sip:1...@192.168.91.200 <sip%3a1...@192.168.91.200> >>>> >;tag=4b428357-2fa-1ec5d4e >>>> To:<sip:1...@192.168.91.200 <sip%3a1...@192.168.91.200>> >>>> Contact:"Lloyd" <sip:1...@192.168.91.190:5060;transport=UDP> >>>> Call-ID:83570000-4ce59...@192.168.91.200<call-id%3a83570000-4ce59...@192.168.91.200> >>>> Subject:sip phone call >>>> CSeq:2112045024 INVITE >>>> User-Agent:Mitel-5212-SIP-Phone 07.02.00.04 08000F24BEE5 >>>> Allow:INVITE,ACK,CANCEL,BYE,OPTIONS,REFER,NOTIFY,PRACK,UPDATE >>>> Allow-Events:talk,hold,conference >>>> Supported:timer,100rel,replaces >>>> Session-Expires: 1800 >>>> Min-SE: 90 >>>> Max-Forwards:70 >>>> Content-Type:application/sdp >>>> Content-Length:247 >>>> >>>> v=0 >>>> o=1000 1262650963 1262650962 IN IP4 192.168.91.190 >>>> s=SIP Call >>>> c=IN IP4 192.168.91.190 >>>> t=0 0 >>>> a=sendrecv >>>> m=audio 20036 RTP/AVP 0 8 18 96 >>>> a=rtpmap:0 PCMU/8000 >>>> a=rtpmap:8 PCMA/8000 >>>> a=rtpmap:18 G729/8000 >>>> a=rtpmap:96 telephone-event/8000 >>>> >>>> ----------------------------------------------------------------------------------------------- >>>> >>>> I get a response from the sip server on frame 13 (371 bytes) >>>> >>>> ---------------------------------------------------------------------------------------------- >>>> SIP/2.0 100 Trying >>>> Via: SIP/2.0/UDP 192.168.91.190:5060;rport=5060;branch=z9hG4bK83570061 >>>> From: "Lloyd" <sip:1...@192.168.91.200 <sip%3a1...@192.168.91.200> >>>> >;tag=4b428357-2fa-1ec5d4e >>>> To: <sip:1...@192.168.91.200 <sip%3a1...@192.168.91.200>> >>>> Call-ID: 83570000-4ce59...@192.168.91.200 >>>> CSeq: 2112045024 INVITE >>>> User-Agent: FreeSWITCH-mod_sofia/1.0.trunk-15355M >>>> Content-Length: 0 >>>> >>>> ----------------------------------------------------------------------------------------------- >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> fpc-pascal maillist - fpc-pascal@lists.freepascal.org >>>> http://lists.freepascal.org/mailman/listinfo/fpc-pascal >>>> >>> >>> >>> _______________________________________________ >>> fpc-pascal maillist - fpc-pascal@lists.freepascal.org >>> http://lists.freepascal.org/mailman/listinfo/fpc-pascal >>> >> >> > > _______________________________________________ > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-pascal >
_______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
