Similar to gre, vxlan, geneve, ipip tunnels, allow ip6gretap tunnels to operate in collect metadata mode. The first patch adds the support to ip6_gre.c. The second patch enables unsetting the csum for ipv6 tunnel, when using bpf_skb_[gs]et_tunnel_key() helpers. Finally, the last patch adds the ip6 gre and gretap tunnel test cases to BPF sample code.
The corresponding iproute2 patch: https://marc.info/?l=linux-netdev&m=151216943128087&w=2 William Tu (3): ip6_gre: add ip6 gre and gretap collect_md mode bpf: allow disabling tunnel csum for ipv6 samples/bpf: extend test_tunnel_bpf.sh with ip6gre net/core/filter.c | 5 +- net/ipv6/ip6_gre.c | 105 +++++++++++++++++++++++++++++++++++++---- net/ipv6/ip6_tunnel.c | 5 +- samples/bpf/tcbpf2_kern.c | 43 +++++++++++++++++ samples/bpf/test_tunnel_bpf.sh | 65 +++++++++++++++++++++++++ 5 files changed, 210 insertions(+), 13 deletions(-) -- 2.7.4
