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Use more light-weight versions of routing lookup functions in ng_netflow.

Authored by melifaro on Dec 18 2020, 8:57 PM.



Use recently-added combination of fib[46]_lookup_rt() which returns rtentry & raw nexthop with
rt_get_inet[6]_plen() which returns address/prefix length of prefix inside rt instead of rib_lookup_info().

New calls does not require reference counting objects and reduce the amount of copied/processed rtentry data.

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R10 FreeBSD src repository
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melifaro added a reviewer: network.

Excellent example how to apply the new API.

This revision was not accepted when it landed; it landed in state Needs Review.Dec 26 2020, 11:33 AM
This revision was automatically updated to reflect the committed changes.