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ip_tunnel: add support for setting flow label via collect metadata

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This patch extends udp_tunnel6_xmit_skb() to pass in the IPv6 flow label
from call sites. Currently, there's no such option and it's always set to
zero when writing ip6_flow_hdr(). Add a label member to ip_tunnel_key, so
that flow-based tunnels via collect metadata frontends can make use of it.
vxlan and geneve will be converted to add flow label support separately.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann
2016-03-09 03:00:02 +01:00
committed by David S. Miller
parent e327f4e193
commit 134611446d
7 changed files with 15 additions and 10 deletions
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2
net/tipc/udp_media.c
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@@ -196,7 +196,7 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
ttl = ip6_dst_hoplimit(ndst);
err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, skb,
ndst->dev, &src->ipv6,
&dst->ipv6, 0, ttl, src->udp_port,
&dst->ipv6, 0, ttl, 0, src->udp_port,
dst->udp_port, false);
#endif
}