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bpf: allow to propagate df in bpf_skb_set_tunnel_key

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Added by 9a628224a6 ("ip_tunnel: Add dont fragment flag."), allow to
feed df flag into tunneling facilities (currently supported on TX by
vxlan, geneve and gre) as a hint from eBPF's bpf_skb_set_tunnel_key()
helper.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann
2016-03-04 15:15:05 +01:00
committed by David S. Miller
parent 577c50aade
commit 2208087061
2 changed files with 6 additions and 1 deletions
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include/uapi/linux/bpf.h
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@@ -330,6 +330,7 @@ enum bpf_func_id {
/* BPF_FUNC_skb_set_tunnel_key flags. */
#define BPF_F_ZERO_CSUM_TX (1ULL << 1)
#define BPF_F_DONT_FRAGMENT (1ULL << 2)
/* user accessible mirror of in-kernel sk_buff.
* new fields can only be added to the end of this structure