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[PATCH 1/2] ip_tunnel: fix setting ttl and tos value in collect_md mode

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  [PATCH 1/2] ip_tunnel: fix setting ttl and tos value in collect_md mode Haishuang Yan <yanhaishuang@cmss.chinamobile.com> - 2017-09-07 08:10 +0200
    [PATCH 2/2] ip6_tunnel: fix setting hop_limit value for ipv6 tunnel Haishuang Yan <yanhaishuang@cmss.chinamobile.com> - 2017-09-07 08:10 +0200
      Re: [PATCH 2/2] ip6_tunnel: fix setting hop_limit value for ipv6  tunnel David Miller <davem@davemloft.net> - 2017-09-09 05:50 +0200
    Re: [PATCH 1/2] ip_tunnel: fix setting ttl and tos value in  collect_md mode David Miller <davem@davemloft.net> - 2017-09-09 05:50 +0200

#1727929 — [PATCH 1/2] ip_tunnel: fix setting ttl and tos value in collect_md mode

ttl and tos variables are declared and assigned, but are not used in
iptunnel_xmit() function.

Fixes: cfc7381b3002 ("ip_tunnel: add collect_md mode to IPIP tunnel")
Cc: Alexei Starovoitov <ast@fb.com>
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
---
 net/ipv4/ip_tunnel.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 129d1a3..e1856bf 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -618,8 +618,8 @@ void ip_md_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, u8 proto)
 		ip_rt_put(rt);
 		goto tx_dropped;
 	}
-	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, proto, key->tos,
-		      key->ttl, df, !net_eq(tunnel->net, dev_net(dev)));
+	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, proto, tos, ttl,
+		      df, !net_eq(tunnel->net, dev_net(dev)));
 	return;
 tx_error:
 	dev->stats.tx_errors++;
-- 
1.8.3.1

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#1727932 — [PATCH 2/2] ip6_tunnel: fix setting hop_limit value for ipv6 tunnel

Similar to vxlan/geneve tunnel, if hop_limit is zero, it should fall
back to ip6_dst_hoplimt().

Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
---
 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.
-- 
1.8.3.1

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#1729376 — Re: [PATCH 2/2] ip6_tunnel: fix setting hop_limit value for ipv6 tunnel

From: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Date: Thu,  7 Sep 2017 14:08:35 +0800

> Similar to vxlan/geneve tunnel, if hop_limit is zero, it should fall
> back to ip6_dst_hoplimt().
> 
> Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>

Applied.

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#1729377 — Re: [PATCH 1/2] ip_tunnel: fix setting ttl and tos value in collect_md mode

From: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Date: Thu,  7 Sep 2017 14:08:34 +0800

> ttl and tos variables are declared and assigned, but are not used in
> iptunnel_xmit() function.
> 
> Fixes: cfc7381b3002 ("ip_tunnel: add collect_md mode to IPIP tunnel")
> Cc: Alexei Starovoitov <ast@fb.com>
> Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>

Applied.

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