Re: [OPSAWG] [Mud] Declaring something to be a controller in MUD
Michael Richardson <mcr+ietf@sandelman.ca> Wed, 26 June 2019 15:34 UTC
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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Eliot Lear <lear@cisco.com>
cc: opsawg@ietf.org, mud@ietf.org
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Date: Wed, 26 Jun 2019 11:34:35 -0400
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Subject: Re: [OPSAWG] [Mud] Declaring something to be a controller in MUD
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Eliot Lear <lear@cisco.com> wrote: >>> In either case, right now the administrator has to manually know and >>> populate information, to say - some device 1.2.3.4 is a controller, >>> either for MUD URL https://example.com/mud <https://example.com/mud> or >>> a class http://example.com/mudclass1 <http://example.com/mudclass1>. >>> That can be laborious. To assist, we are examining ways to have a >>> controller declare itself as a candidate controller. That at least >>> provides a hint to the administrator that this particular device is >>> capable of serving in a particular role. >> >> I think that anything that requires administrator activity to be a fail for >> residential use. It's too complex. > There will ALWAYS be a need for an administrator in the enterprise > case. But maybe with the options above we can ease the consumer burden > over time. In the consumer case, you might want an app for initial > device admission control anyway, no? Can we not rely on that > interaction as an approval step in this instance? I think we'd all like to have a generic app (with an RFC standard API) that can onboard any device and can do admission control for any controller. I think this is what you are saying as well. >>> One possibility to address this is to incorporate the new RESTful >>> endpoint into an ANIMA BRSKI join registrar, which may already be >>> exposed. But that requires that ANIMA BRSKI be in play, which it may >>> not. >> It is, however, a really good idea for the case where it is in play. >> >>> My thinking is that we do this work in two stages. First handle the >>> easy case, which is the MUD file extension, and then figure out how to >>> do the app version of this. >> >>> Thoughts? >> >> yes. >> > Was that “yes” to the two stage approach? "Yes" :-) Eliot Lear <lear@cisco.com> wrote: >> 1) insist that to user the my-controller connections that the two devices >> have to be signed by the "same" entity. ["same" could mean literal the >> same key, the same certificate Issuer/DN, or something more complex] >> >> 2) we could have devices declare in an MUD extension the >> DN/certificate/entity which must sign their controller device. >> >> 3) (2) above, but with some level of indirection through some URL. > Another thought here: > We could provide a level of dereference for authorized controllers in > the device’s MUD file, in the form of a URL list that would look > something like: > { [ > “controller” : “controller-name" > “mud-urls” : [ some mud urls of valid controllers here ] > “include” : “https://levelofindirection.example.com” that points to a file that contains a JSON serialization of this grouping > } yes, this is exactly what I was thinking about. Would "mud-urls" / "include" be mutually exclusive? -- ] Never tell me the odds! | ipv6 mesh networks [ ] Michael Richardson, Sandelman Software Works | IoT architect [ ] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on rails [ -- Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works -= IPv6 IoT consulting =-
- [OPSAWG] Declaring something to be a controller i… Eliot Lear
- Re: [OPSAWG] Declaring something to be a controll… M. Ranganathan
- Re: [OPSAWG] Declaring something to be a controll… Michael Richardson
- Re: [OPSAWG] [Mud] Declaring something to be a co… Eliot Lear
- Re: [OPSAWG] [Mud] Declaring something to be a co… Eliot Lear
- Re: [OPSAWG] [Mud] Declaring something to be a co… M. Ranganathan
- Re: [OPSAWG] [Mud] Declaring something to be a co… Michael Richardson
- Re: [OPSAWG] [Mud] Declaring something to be a co… Eliot Lear
- Re: [OPSAWG] [Mud] Declaring something to be a co… Michael Richardson
- Re: [OPSAWG] [Mud] Declaring something to be a co… Eliot Lear
- Re: [OPSAWG] Declaring something to be a controll… Qin Wu
- Re: [OPSAWG] Declaring something to be a controll… Eliot Lear
- Re: [OPSAWG] Declaring something to be a controll… Qin Wu
- Re: [OPSAWG] Declaring something to be a controll… Eliot Lear
- Re: [OPSAWG] Declaring something to be a controll… Eliot Lear
- Re: [OPSAWG] [Mud] Declaring something to be a co… M. Ranganathan
- Re: [OPSAWG] Declaring something to be a controll… Qin Wu
- Re: [OPSAWG] Declaring something to be a controll… Qin Wu
- Re: [OPSAWG] [Mud] Declaring something to be a co… Eliot Lear
- Re: [OPSAWG] [Mud] Declaring something to be a co… Eliot Lear
- Re: [OPSAWG] [Mud] Declaring something to be a co… M. Ranganathan