[PATCH 2/2] ip6_tunnel: fix setting hop_limit value for ipv6 tunnel
From: Haishuang Yan <hidden>
Date: 2017-09-07 06:08:59
Also in:
lkml
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
Similar to vxlan/geneve tunnel, if hop_limit is zero, it should fall back to ip6_dst_hoplimt(). Signed-off-by: Haishuang Yan <redacted> --- net/ipv6/ip6_tunnel.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 3a0ba2a..10a693a 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c@@ -1184,6 +1184,7 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield, init_tel_txopt(&opt, encap_limit); ipv6_push_frag_opts(skb, &opt.ops, &proto); } + hop_limit = hop_limit ? : ip6_dst_hoplimit(dst); /* Calculate max headroom for all the headers and adjust * needed_headroom if necessary.
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1.8.3.1