ipv6: sr: add support for encapsulation of L2 frames

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This patch implements the L2 frame encapsulation mechanism, referred to
as T.Encaps.L2 in the SRv6 specifications [1].

A new type of SRv6 tunnel mode is added (SEG6_IPTUN_MODE_L2ENCAP). It only
accepts packets with an existing MAC header (i.e., it will not work for
locally generated packets). The resulting packet looks like IPv6 -> SRH ->
Ethernet -> original L3 payload. The next header field of the SRH is set to
NEXTHDR_NONE.

[1] https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-01

Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

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David Lebrun 2017-08-25 09:56:45 +02:00 • committed by David S. Miller

parent 32d99d0b67

commit 38ee7f2d47

2 changed files with 37 additions and 6 deletions

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include/uapi/linux/seg6_iptunnel.h

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