Re: [sip-clf] Strawman proposal to handle bodies
Peter Musgrave <peter.musgrave@magorcorp.com> Thu, 20 January 2011 10:53 UTC
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From: Peter Musgrave <peter.musgrave@magorcorp.com>
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Date: Thu, 20 Jan 2011 05:56:23 -0500
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To: "Vijay K. Gurbani" <vkg@bell-labs.com>
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Subject: Re: [sip-clf] Strawman proposal to handle bodies
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Hi Vijay, Thanks for getting this on the list so fast. This works for me. (As for John's comment, I can live with having to decode the content type as opposed to trying to enumerate them). Peter Musgrave (as individual) On 2011-01-19, at 11:29 AM, Vijay K. Gurbani wrote: > Folks: In the virtual meeting we had this morning, I volunteered > to draft a proposal for handling message bodies. > > As I understand it, the bounds are that logging bodies is optional > and that bodies should not be logged as vendor extensions as that > will hinder interoperability. > > Furthermore, we are interested in logging different body types, > or more concretely bodies containing: > > - SDP (Content-Type: application/sdp) > - XML payloads (Content-type: application/*+xml) > - binary (Content-Type: application/{isup,qsig}) > - miscellaneous text content (Content-type: message/sipfrag, > message/http, text/plain, ...) > > To support this, we reserve a tag field for bodies as described > in [1], say 0x0004. The value of this tag field would be the > content type itself plus the body. > > To take a concrete example, > > Type: 0x0004 > Length: 160 > Value: application/sdp v=0\r\no=alice 2890844526 2890844526 IN IP4 > host.atlanta.example.com\r\ns=\r\nc=IN IP4 > host.atlanta.example.com\r\nt=0 0\r\n > m=audio 49170 RTP/AVP 0 8 97\r\n > > Couple of points to note: (a) the MIME type is saved in the Value; > (b) the octets in Value are all logically on one line; (c) the > Length includes the payload + length of the MIME type + LWS separator > between the MIME type and the content. > > Also note that for now let's keep aside the \r\n tokens delimiting > the lines in the example above. Once we agree to the proposal, we > can work the details out on how to represent \r\n in a text-based > body. > > Binary bodies would have to be byte encoded to render them in the > ASCII file. > > Please comment on this approach so I can update the problem statement > and Gonzalo can start thinking about the representation format for > these in [1]. > > [1] http://tools.ietf.org/html/draft-salgueiro-sipclf-indexed-ascii-02 > > Thanks, > > - vijay > -- > Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent > 1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60566 (USA) > Email: vkg@{bell-labs.com,acm.org} / vijay.gurbani@alcatel-lucent.com > Web: http://ect.bell-labs.com/who/vkg/ > _______________________________________________ > sip-clf mailing list > sip-clf@ietf.org > https://www.ietf.org/mailman/listinfo/sip-clf
- [sip-clf] Strawman proposal to handle bodies Vijay K. Gurbani
- Re: [sip-clf] Strawman proposal to handle bodies Elwell, John
- Re: [sip-clf] Strawman proposal to handle bodies Peter Musgrave
- Re: [sip-clf] Strawman proposal to handle bodies Vijay K. Gurbani
- Re: [sip-clf] Strawman proposal to handle bodies Elwell, John
- Re: [sip-clf] Strawman proposal to handle bodies Vijay K. Gurbani
- Re: [sip-clf] Strawman proposal to handle bodies Peter Musgrave