Sounds great, the bulk of the work here has been getting the structs and helper functions ready, so most changes to libopenflow should be fairly easy to port through
On Sat, Nov 3, 2012 at 5:44 PM, Murphy McCauley <[email protected]>wrote: > Very cool! Seems like a good first step. > > I'll take a closer look when I have more time. > > There are still some changes pending in libopenflow_01, which you might > want to at least be aware of. The two big (related) ones are: > Finally eliminating all vestiges of the length field and only using it for > validation. > Using the new-style unpack (using the helper methods up top), which are > more structured, fail more noticeably, and allow unpacking from arbitrary > offsets in a buffer (reducing the number of copies the OF loop has to do). > > -- Murphy > > On Nov 2, 2012, at 9:34 PM, Sam Russell wrote: > > Here's my POX fork that does enough OpenFlow 1.1 to pass a basic unit test > with an MPLS packet https://github.com/samrussell/pox/tree/of11 > > It breaks wildcarding in the process, and the rest of the spec needs to be > implemented to make it work properly (e.g. pack/unpack fails on most > classes, probably due to the new 32-bit ports), as well as other messages, > but my goal here is just to get it up and running so that there's a python > controller that speaks OpenFlow 1.1 > > Here's the main functionality that I'm aiming for: > > - Can auto-generate matches based on compatible packets (done) > - Implements actions for MPLS stuff > > This should really be all that it needs for it to be integrated into a > label-switched router. The rest will come, as well as ways to make the > 1.0/1.1 split more pretty, but I'm really after a reference MPLS spec in > POX. > > I've found some other stuff on the way: > - the mpls class stores its payload as raw data rather than parsing it as > IP(v4) > - the wildcarding is heavily tied to fields that can be matched - new IP > and ethernet masks will either need more special cases like IP currently > has in 1.0, or a new approach to wildcarding > > >
