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Date: Sun, 12 Dec 2010 21:16:48 -0800 (PST)
From: David Miller <davem@...emloft.net>
To: netdev@...r.kernel.org
Subject: [PATCH] ipv6: Use ip6_dst_hoplimit() instead of direct
dst_metric() calls.
Signed-off-by: David S. Miller <davem@...emloft.net>
---
I just noticed this while hacking on metrics. IPV6 has to use
this special function because the default has a dynamic
per-interface value. So it can't do the same trick ipv4 does
by pre-seeding the cached route metric.
net/ipv6/netfilter/ip6t_REJECT.c | 2 +-
net/ipv6/route.c | 1 +
net/ipv6/xfrm6_mode_tunnel.c | 3 ++-
3 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 2933396..bf998fe 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -124,7 +124,7 @@ static void send_reset(struct net *net, struct sk_buff *oldskb)
skb_reset_network_header(nskb);
ip6h = ipv6_hdr(nskb);
ip6h->version = 6;
- ip6h->hop_limit = dst_metric(dst, RTAX_HOPLIMIT);
+ ip6h->hop_limit = ip6_dst_hoplimit(dst);
ip6h->nexthdr = IPPROTO_TCP;
ipv6_addr_copy(&ip6h->saddr, &oip6h->daddr);
ipv6_addr_copy(&ip6h->daddr, &oip6h->saddr);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 4aed081..9b2d7bc 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1119,6 +1119,7 @@ int ip6_dst_hoplimit(struct dst_entry *dst)
}
return hoplimit;
}
+EXPORT_SYMBOL(ip6_dst_hoplimit);
/*
*
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index b809812..645cb96 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -14,6 +14,7 @@
#include <net/dsfield.h>
#include <net/dst.h>
#include <net/inet_ecn.h>
+#include <net/ip6_route.h>
#include <net/ipv6.h>
#include <net/xfrm.h>
@@ -53,7 +54,7 @@ static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
if (x->props.flags & XFRM_STATE_NOECN)
dsfield &= ~INET_ECN_MASK;
ipv6_change_dsfield(top_iph, 0, dsfield);
- top_iph->hop_limit = dst_metric(dst->child, RTAX_HOPLIMIT);
+ top_iph->hop_limit = ip6_dst_hoplimit(dst->child);
ipv6_addr_copy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr);
ipv6_addr_copy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr);
return 0;
--
1.7.3.2
--
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