Hi Dave, I'm trying to create a flexible way to build new network app without touching the source code. Initially, we need to develop basic/atom nodes such as SetMac, SetVLAN, SetIP, LookUpIP, LookUpMac ... After that, we can create a new app by using the above atom nodes to define a graph in a file and VPP parser this file to build the graph. Does this break any VPP philosophies?
On Fri, Sep 8, 2017 at 7:09 PM, Dave Barach (dbarach) <dbar...@cisco.com> wrote: > One could do that, but what problem are you trying to solve? The data > structures involved are not super-complicated, but what you’ve described is > neither a beginner project nor a worthwhile project IMO. > > > > If you want to spoof MAC addresses in the L2 path, add an L2 feature node > which does that. Generally speaking, two nodes A and B have a contract in > terms of buffer metadata setup. Arbitrary graph rewiring would result in > either gross or subtle malfunction. > > > > In terms of how to build a plugin: look at .../src/examples/sample-plugin. > > > > > I maintain (sporadically) a set of emacs skeletons in .../extras/emacs. If > you M-x eval-buffer all-skel.el, a subsequent M-x make-plugin will create a > boilerplate plugin for you. > > > > Thanks… Dave > > > > *From:* vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] *On > Behalf Of *Ngo Doan Lap > *Sent:* Thursday, September 7, 2017 10:18 PM > *To:* vpp-dev@lists.fd.io > *Subject:* [vpp-dev] Rearrangement of graph nodes > > > > Hi, > > From this page https://wiki.fd.io/view/VPP/What_is_VPP%3F > > There is an option to create a plugin to rearrange graph nodes. > > I want to write a plugin that builds graph nodes from a file, for example > > graph.txt: > > dpdk-input-->ethernet-input->change-mac > > > > I would like to know from your opinion that is it possible with VPP? > > And if yes, can you tell me how to write a plugin to rearrange graph nodes? > > (I'm unable to find the example/doc to build a plugin to rearrange graph > nodes) > > -- > > Thanks and Best Regards, > Ngo Doan Lap > > > -- Thanks and Best Regards, Ngo Doan Lap Mobile: 0977.833.757
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