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ng_split - netgraph node to separate incoming and outgoing flows
The split node type is used to split a bidirectional stream of packets
into two separate unidirectional streams of packets.
This node type supports the following three hooks:
in Packets received on in are forwarded to mixed.
out Packets received on out will be discarded as illegal.
mixed Packets received on mixed are forwarded to out.
This node type supports only the generic control messages.
This node shuts down upon receipt of a NGM_SHUTDOWN control message, or
when all hooks have been disconnected.
The ng_split node type was implemented in FreeBSD 3.5 but incorporated
into FreeBSD in FreeBSD 5.0.
Julian Elischer 〈julian@FreeBSD.org〉
Vitaly V. Belekhov 〈firstname.lastname@example.org〉