Files
linux/net/netfilter
Pablo Neira Ayuso b5964aac51 netfilter: flowtable: consolidate xmit path
Use dev_queue_xmit() for the XMIT_NEIGH case. Store the interface index
of the real device behind the vlan/pppoe device, this introduces  an
extra lookup for the real device in the xmit path because rt->dst.dev
provides the vlan/pppoe device.

XMIT_NEIGH now looks more similar to XMIT_DIRECT but the check for stale
dst and the neighbour lookup still remain in place which is convenient
to deal with network topology changes.

Note that nft_flow_route() needs to relax the check for _XMIT_NEIGH so
the existing basic xfrm offload (which only works in one direction) does
not break.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-11-27 23:59:56 +00:00
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