Re: [btns] Minor connection-latch problem in AUTH48
Nicolas Williams <Nicolas.Williams@sun.com> Fri, 16 October 2009 17:37 UTC
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Date: Fri, 16 Oct 2009 12:25:42 -0500
From: Nicolas Williams <Nicolas.Williams@sun.com>
To: Michael Richardson <mcr@sandelman.ca>
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Cc: btns@ietf.org
Subject: Re: [btns] Minor connection-latch problem in AUTH48
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On Thu, Oct 15, 2009 at 08:54:18PM -0400, Michael Richardson wrote: > > >>>>> "Nicolas" == Nicolas Williams <Nicolas.Williams@sun.com> writes: > Nicolas> The third highlighted sentence is the correct one: the IKE > Nicolas> exchange need not be triggered until the ULP sends a > Nicolas> packet. The IKE exchange _can_ be triggered before then > Nicolas> (since the key manager knows, from the fact that > Nicolas> CREATE_CONNECTION_LATCH() was used, that that packet is > Nicolas> coming, but it doesn't need to be. > > Nicolas> Now, if the key manager waits for the ULP to send a packet > Nicolas> then the latch that gets created cannot have all parameters > Nicolas> filled in. That is, we have a "larval" state to consider. > > Right. > > Nicolas> Comments? > > I have no other solution. It all makes sense to me. Thanks! I've beautified the state machine figure a bit (no arrows cross now), clarified the trigger events in the figure, and restored dotted lines that I'd accidentally made non-dotted. The new figure is below. Anyone else have comments? <CREATE_LISTENER_LATCH(3-tuple, ...)> : : <CREATE_CONNECTION_LATCH(5-tuple, ...)> V : : : /--------\ : : : +-----|LISTENER|--+ : : : | \--------/ | : : : | | | : : : | | | : /------\ : | | | : |LARVAL| : +--------------------+ | | | : \------/ : |Legend: | | | | : | | : | dotted lines denote| | <matching child : <matching : | latch creation | | SAs installed> : child SAs : | | | [e.g., for TCP] : installed> : | solid lines denote | | [ SYN soon to ] : [e.g., TCP] : | state transition| | [ be received ] : [ SYN sent] : | | | | | : | | : | semi-solid lines | | | v v v | : | denote async | | | /-----------\ | : | notification | | | |ESTABLISHED| | : +--------------------+ | <conflict> \-----------/ | : | | ^ | | : | | | <conflict : | | <conflict or DPD> : | | cleared> | | : | | | | | : | | | v v v | | /---------------------\ | +------>| BROKEN |-.-.-.-> <ALERT()> | \---------------------/ | | <RELEASE_LATCH()> <RELEASE_LATCH()> | | | v | /------\ +------------------->|CLOSED| \------/ Nico --
- [btns] Minor connection-latch problem in AUTH48 Nicolas Williams
- Re: [btns] Minor connection-latch problem in AUTH… Michael Richardson
- Re: [btns] Minor connection-latch problem in AUTH… Michael Richardson
- Re: [btns] Minor connection-latch problem in AUTH… Nicolas Williams
- Re: [btns] Minor connection-latch problem in AUTH… Laganier, Julien
- Re: [btns] Minor connection-latch problem in AUTH… Nicolas Williams
- Re: [btns] Minor connection-latch problem in AUTH… Laganier, Julien
- Re: [btns] Minor connection-latch problem in AUTH… Nicolas Williams
- Re: [btns] Minor connection-latch problem in AUTH… Laganier, Julien
- Re: [btns] Minor connection-latch problem in AUTH… Nicolas Williams
- Re: [btns] Minor connection-latch problem in AUTH… Laganier, Julien
- Re: [btns] Minor connection-latch problem in AUTH… Nicolas Williams
- Re: [btns] Minor connection-latch problem in AUTH… Laganier, Julien
- Re: [btns] Minor connection-latch problem in AUTH… Nicolas Williams
- [btns] Security UDT DB
- Re: [btns] Security UDT Joe Touch
- Re: [btns] Security UDT Joe Touch