Hi, Please find attached a patch proposal adding a DPI engine in openvswitch. The patch doesn't include the DPI engine and has been tested with Qosmos ixEngine, but is not tight to Qosmos in any way: see lib/dpi.h and lib/dpi.c in the patch.
This tiny patch demonstrates how to inject just enough packet in the DPI engine
(as DPI processing can be CPU consuming), but is hooked on all new flow
creation. But it would be better to inject only targeted packets in the DPI, by
adding a new OpenFlow non terminal "dpi" output action. For instance:
ovs-ofctl add-flow br0 in_port=1,action=dpi,resubmit(,1)
To keep in mind for later discussions: how can we extend OpenFlow matcher with
the DPI classification result? Via new OXM that we could call Application
eXtensible Matchers (AXM)? For instance:
ovs-ofctl add-flow br0
dpi_appid=0x1234/0xF000,action=resubmit(,2)
Best Regards,
Franck
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0001-DPI-plugin-addition-proposal.patch
Description: 0001-DPI-plugin-addition-proposal.patch
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