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[03/19] ipv6: add ip6_route_lookup

Message ID 1324778255-2830-4-git-send-email-pablo@netfilter.org
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Pablo Neira Ayuso Dec. 25, 2011, 1:57 a.m. UTC 
From: Florian Westphal <fw@strlen.de>

like rt6_lookup, but allows caller to pass in flowi6 structure.
Will be used by the upcoming ipv6 netfilter reverse path filter
match.

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/ip6_route.h |    2 ++
 net/ipv6/route.c        |    7 +++++++
 2 files changed, 9 insertions(+), 0 deletions(-)
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Patch

diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 5e91b72..9c9399c 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -70,6 +70,8 @@  extern void			ip6_route_input(struct sk_buff *skb);
 extern struct dst_entry *	ip6_route_output(struct net *net,
 						 const struct sock *sk,
 						 struct flowi6 *fl6);
+extern struct dst_entry *	ip6_route_lookup(struct net *net,
+						 struct flowi6 *fl6, int flags);
 
 extern int			ip6_route_init(void);
 extern void			ip6_route_cleanup(void);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 1138b0a..ab48b02 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -658,6 +658,13 @@  out:
 
 }
 
+struct dst_entry * ip6_route_lookup(struct net *net, struct flowi6 *fl6,
+				    int flags)
+{
+	return fib6_rule_lookup(net, fl6, flags, ip6_pol_route_lookup);
+}
+EXPORT_SYMBOL_GPL(ip6_route_lookup);
+
 struct rt6_info *rt6_lookup(struct net *net, const struct in6_addr *daddr,
 			    const struct in6_addr *saddr, int oif, int strict)
 {