201-multiple_default_gateways.patch

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Index: linux-2.6.21.7/include/linux/netfilter_ipv4/ip_nat.h
===================================================================
--- linux-2.6.21.7.orig/include/linux/netfilter_ipv4/ip_nat.h
+++ linux-2.6.21.7/include/linux/netfilter_ipv4/ip_nat.h
@@ -64,6 +64,13 @@ struct ip_nat_info
 
 struct ip_conntrack;
 
+/* Call input routing for SNAT-ed traffic */
+extern unsigned int ip_nat_route_input(unsigned int hooknum,
+				       struct sk_buff **pskb,
+				       const struct net_device *in,
+				       const struct net_device *out,
+				       int (*okfn)(struct sk_buff *));
+
 /* Set up the info structure to map into this range. */
 extern unsigned int ip_nat_setup_info(struct ip_conntrack *conntrack,
 				      const struct ip_nat_range *range,
Index: linux-2.6.21.7/include/linux/rtnetlink.h
===================================================================
--- linux-2.6.21.7.orig/include/linux/rtnetlink.h
+++ linux-2.6.21.7/include/linux/rtnetlink.h
@@ -293,6 +293,8 @@ struct rtnexthop
 #define RTNH_F_DEAD		1	/* Nexthop is dead (used by multipath)	*/
 #define RTNH_F_PERVASIVE	2	/* Do recursive gateway lookup	*/
 #define RTNH_F_ONLINK		4	/* Gateway is forced on link	*/
+#define RTNH_F_SUSPECT		8	/* We don't know the real state	*/
+#define RTNH_F_BADSTATE		(RTNH_F_DEAD | RTNH_F_SUSPECT)
 
 /* Macros to handle hexthops */
 
Index: linux-2.6.21.7/include/net/flow.h
===================================================================
--- linux-2.6.21.7.orig/include/net/flow.h
+++ linux-2.6.21.7/include/net/flow.h
@@ -19,6 +19,8 @@ struct flowi {
 		struct {
 			__be32			daddr;
 			__be32			saddr;
+			__u32			lsrc;
+			__u32			gw;
 			__u8			tos;
 			__u8			scope;
 		} ip4_u;
@@ -43,6 +45,8 @@ struct flowi {
 #define fl6_flowlabel	nl_u.ip6_u.flowlabel
 #define fl4_dst		nl_u.ip4_u.daddr
 #define fl4_src		nl_u.ip4_u.saddr
+#define fl4_lsrc        nl_u.ip4_u.lsrc
+#define fl4_gw		nl_u.ip4_u.gw
 #define fl4_tos		nl_u.ip4_u.tos
 #define fl4_scope	nl_u.ip4_u.scope