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authorXin Long <lucien.xin@gmail.com>2017-11-11 19:06:49 +0800
committerDavid S. Miller <davem@davemloft.net>2017-11-13 10:44:05 +0900
commit929fc0327569aa745c9c3cb68a213c22fad3f3f9 (patch)
treed891f244d9a5d622685ccc26ca287a73cfb74198 /net/ipv6
parent0d728b844c2dd8dd3875ed304eee43967c5d14f6 (diff)
ip6_gre: add the process for redirect in ip6gre_err
This patch is to add redirect icmp packet process for ip6gre by calling ip6_redirect() in ip6gre_err(), as in vti6_err. Prior to this patch, there's even no route cache generated after receiving redirect. Reported-by: Jianlin Shi <jishi@redhat.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_gre.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 3e10c51e7e0c..0684d0ccaaa5 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -369,6 +369,7 @@ static void ip6gre_tunnel_uninit(struct net_device *dev)
static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
u8 type, u8 code, int offset, __be32 info)
{
+ struct net *net = dev_net(skb->dev);
const struct gre_base_hdr *greh;
const struct ipv6hdr *ipv6h;
int grehlen = sizeof(*greh);
@@ -442,6 +443,10 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
mtu = IPV6_MIN_MTU;
t->dev->mtu = mtu;
return;
+ case NDISC_REDIRECT:
+ ip6_redirect(skb, net, skb->dev->ifindex, 0,
+ sock_net_uid(net, NULL));
+ return;
}
if (time_before(jiffies, t->err_time + IP6TUNNEL_ERR_TIMEO))