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authorOle Troan <ot@cisco.com>2017-05-16 14:59:29 +0200
committerDamjan Marion <dmarion.lists@gmail.com>2017-09-05 12:07:22 +0000
commitf7a55ad74c90928d86f1bbf56590d9571c1b828f (patch)
treee00a9cfa4d28e2f8bf4acc6d4c95ccee03fb6f45 /src/plugins
parent809bc74b5b73634678e6f1444344fd1c0a89e877 (diff)
PUNT socket: External control plane processes connected via UNIX domain sockets.
An external (to VPP) process can register (over the VPP binary API) to receive control plane packets over a UNIX domain socket. The packets are prepended with a packet descriptor containing meta-data (if_index of interface, etc). Currently only UDP is supported. The socket supports sending of packets/frames as well. The sent packet is prepended with a descriptor, telling VPP to route the packet (via ip4-lookup, ip6-lookup) or as an pre-formed Ethernet frame that is sent directly to interface-output. The intended use case for this is for an external DHCP client or a RIP implementation. New configuration option: punt { socket <socket path> } To register use the punt_socket API message. TODO: - Add support for pre-routing. I.e send L3 packet to given TX interface, but do ARP/ND (ip[46]-rewrite) - Add test scripts - Support for abstract names (starting with \0) - Add rate limiting (COP) - Support for other protocols, e.g. IPv6 ND Change-Id: I4a0afc8020deebb3d9d74686dde694ee5bcb8d0f Signed-off-by: Ole Troan <ot@cisco.com>
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