Subject: [PATCH net 0/3] ipgre: fix lwtunnel support

From: Jiri Benc <[email-masked]>
Date: Fri, 22 Apr 2016 19:44:05 +0200

lwtunnels currently work only with gretap. This patchset fixes the bugs in
ipgre metadata mode implementation.

As an example, in this setup:

ip a a 192.168.1.1/24 dev eth0
ip l a gre1 type gre external
ip l s gre1 up
ip a a 192.168.99.1/24 dev gre1
ip r a 192.168.99.2/32 encap ip dst 192.168.1.2 ttl 10 dev gre1
ping 192.168.99.2

the traffic does not go through before this patchset and does as expected
with it applied.

Jiri Benc (3):
  gre: do not assign header_ops in collect metadata mode
  gre: build header correctly for collect metadata tunnels
  gre: receive also TEB packets for lwtunnels

 include/net/ip_tunnels.h |  1 +
 net/ipv4/ip_gre.c        | 48 +++++++++++++++++++++++++++++++++---------------
 2 files changed, 34 insertions(+), 15 deletions(-)

-- 
1.8.3.1