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bpf: add XDP_TX xdp_action for direct forwarding

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XDP enabled drivers must transmit received packets back out on the same
port they were received on when a program returns this action.

Signed-off-by: Brenden Blanco <[email protected]>
Acked-by: Alexei Starovoitov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Brenden Blanco authored and David S. Miller committed 2016-07-19 21:46:32 -07:00
1 parent d576acf0a2
commit 6ce96ca348
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include/uapi/linux/bpf.h
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@@ -449,6 +449,7 @@ enum xdp_action {
XDP_ABORTED = 0,
XDP_DROP,
XDP_PASS,
XDP_TX,
};
/* user accessible metadata for XDP packet hook