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Fix returned tc and hoplimit values for route with IPv6 encapsulation

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For a route with IPv6 encapsulation, the traffic class and hop limit
values are interchanged when returned to userspace by the kernel.
For example, see below.

># ip route add 192.168.0.1 dev eth0.2 encap ip6 dst 0x50 tc 0x50 hoplimit 100 table 1000
># ip route show table 1000
192.168.0.1  encap ip6 id 0 src :: dst fe83::1 hoplimit 80 tc 100 dev eth0.2  scope link

Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Quentin Armitage 2016-03-27 17:06:11 +01:00 committed by David S. Miller
parent a69f0e281d
commit 995096a0a4
1 changed files with 2 additions and 2 deletions
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4
net/ipv4/ip_tunnel_core.c
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@ -372,8 +372,8 @@ static int ip6_tun_fill_encap_info(struct sk_buff *skb,
if (nla_put_be64(skb, LWTUNNEL_IP6_ID, tun_info->key.tun_id) ||
nla_put_in6_addr(skb, LWTUNNEL_IP6_DST, &tun_info->key.u.ipv6.dst) ||
nla_put_in6_addr(skb, LWTUNNEL_IP6_SRC, &tun_info->key.u.ipv6.src) ||
nla_put_u8(skb, LWTUNNEL_IP6_HOPLIMIT, tun_info->key.tos) ||
nla_put_u8(skb, LWTUNNEL_IP6_TC, tun_info->key.ttl) ||
nla_put_u8(skb, LWTUNNEL_IP6_TC, tun_info->key.tos) ||
nla_put_u8(skb, LWTUNNEL_IP6_HOPLIMIT, tun_info->key.ttl) ||
nla_put_be16(skb, LWTUNNEL_IP6_FLAGS, tun_info->key.tun_flags))
return -ENOMEM;