Re: sockets APIs extensions for Host Identity Protocol
Chris Newman <Chris.Newman@Sun.COM> Mon, 07 May 2007 21:31 UTC
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Date: Mon, 07 May 2007 14:31:31 -0700
From: Chris Newman <Chris.Newman@Sun.COM>
Subject: Re: sockets APIs extensions for Host Identity Protocol
In-reply-to: <Pine.SOL.4.64.0705041801060.14418@kekkonen.cs.hut.fi>
To: Miika Komu <miika@iki.fi>, discuss@apps.ietf.org
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Speaking as a technical participant, not as an area director... Application software wants to work with strings. When I want to make a network connection, I have a string which says what I want to connect to. It might be a DNS name, an IPv4 address literal, and IPv6 address literal, the field after the "//" in a URL or whatever the string format for a HIP endpoint is going to be. As an application developer I don't want to care what that string means. I might want a way to turn that string into an opaque object (or objects) and back (with a timeout) and then use that opaque object in something equivalent to connect and/or bind. I also want a way to enumerate the string representations of the local interfaces on a server so that I can offer the administrator a choice of which interface(s) the listen ports bind to. I don't want to care whether those are IPv4, IPv6 or HIP or something else. The only reason I might care what the string or opaque object refers to is for debugging/logging/diagnostic purposes. If I change my "connectbyname" code again, I will change it once more to use a new OS API that hides all the v4 vs. v6 vs. HIP vs. whatever junk, preferably to something much simpler than the code today. If such an API isn't produced, I will be very reluctant to change that code no matter how cool HIP might or might not be. So the API described in your document is one I plan to never use if at all possible. That might have consequences for HIP deployment, just as the present state of IPv6 C socket APIs has not been great for IPv6 deployment. - Chris Miika Komu wrote on 5/4/07 18:28 +0300: > Hi all, > > we are contemplating a level of indirection in naming hosts to future-proof > the Host Identity Protocol (HIP). The proposed sockets API extensions use > locally-scoped "handles" instead of Host Identity Tags (HITs, that is, > cryptographically generated IPv6-like addresses). One could conceive that > such a level of indirection could be used more generally outside of HIP, to > enable applications to be more compatible across IP versions, for instance. > What are the benefits and costs that you see about migrating the basic socket > API calls towards end-system handles rather than explicit end-system > addresses? > > A potential benefit of the handles is that it would make the API future-proof > againts changes to the HIT size. Similarly, one might argue that the IPv6 > transition would have been a lot easier for applications if the concept of > endpoint descriptor were already available for the past twenty years; IPv6 > could have been hidden in the system. This latter observation makes me > wonder whether there have been such considerations previously in the > applications area? > > The sockets API extensions are defined here: > > http://www.ietf.org/internet-drafts/draft-ietf-hip-native-api-01.txt > > -- > Miika & Tom > > >
- sockets APIs extensions for Host Identity Protocol Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Stephane Bortzmeyer
- Re: sockets APIs extensions for Host Identity Pro… Chris Newman
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Stephane Bortzmeyer
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Stephane Bortzmeyer
- Re: sockets APIs extensions for Host Identity Pro… Stephane Bortzmeyer
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- RE: sockets APIs extensions for Host Identity Pro… Henderson, Thomas R
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Tony Finch
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- RE: sockets APIs extensions for Host Identity Pro… Chris Newman
- Re: sockets APIs extensions for Host Identity Pro… Chris Newman
- Re: sockets APIs extensions for Host Identity Pro… Chris Newman
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Tony Finch
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Keith Moore
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Tony Finch
- Re: sockets APIs extensions for Host Identity Pro… der Mouse
- Re: sockets APIs extensions for Host Identity Pro… Miika Komu