This patch series provide collect_md mode for ERSPAN tunnel. The fist patch
refactors the existing gre_fb_xmit function by exacting the route cache
portion into a new function called prepare_fb_xmit. The second patch
introduces the collect_md mode for ERSPAN tunnel, by calling the
prepare_fb_xmit function and adding ERSPAN specific logic. The final patch
adds the test case using bpf_skb_{set,get}_tunnel_{key,opt}.
Thank you
William Tu (3):
gre: refactor the gre_fb_xmit
gre: add collect_md mode to ERSPAN tunnel
samples/bpf: extend test_tunnel_bpf.sh with ERSPAN
include/net/ip_tunnels.h | 4 +-
net/ipv4/ip_gre.c | 157 ++++++++++++++++++++++++++++++++++++-----
samples/bpf/tcbpf2_kern.c | 63 ++++++++++++++++-
samples/bpf/test_tunnel_bpf.sh | 29 ++++++++
4 files changed, 232 insertions(+), 21 deletions(-)
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2.7.4
