[PATCH net-next (V4) 08/11] ipv6: Introduce rt6_nexthop() to select nexthop address.
From: YOSHIFUJI Hideaki <hidden>
Date: 2013-01-17 22:53:49
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
For RTF_GATEWAY route, return rt->rt6i_gateway. Otherwise, return 2nd argument (destination address). This will be used by following patches which remove rt->n dependency patches in ip6_dst_lookup_tail() and ip6_finish_output2(). Signed-off-by: YOSHIFUJI Hideaki <redacted> --- include/net/ip6_route.h | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 27d8318..30cbb15 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h@@ -23,6 +23,7 @@ struct route_info { #include <net/sock.h> #include <linux/ip.h> #include <linux/ipv6.h> +#include <linux/route.h> #define RT6_LOOKUP_F_IFACE 0x00000001 #define RT6_LOOKUP_F_REACHABLE 0x00000002
@@ -194,4 +195,11 @@ static inline int ip6_skb_dst_mtu(struct sk_buff *skb) skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb)); } +static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt, struct in6_addr *dest) +{ + if (rt->rt6i_flags & RTF_GATEWAY) + return &rt->rt6i_gateway; + return dest; +} + #endif
--
1.7.9.5