gre: Setup and TX path for gre/UDP foo-over-udp encapsulation

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Added netlink attrs to configure FOU encapsulation for GRE, netlink
handling of these flags, and properly adjust MTU for encapsulation.
ip_tunnel_encap is called from ip_tunnel_xmit to actually perform FOU
encapsulation.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Tom Herbert 2014-09-17 12:26:01 -07:00 • committed by David S. Miller

parent 473ab820dd

commit 4565e9919c

2 changed files with 89 additions and 5 deletions

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include/uapi/linux/if_tunnel.h

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