From: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Date: Tue, 21 Mar 2006 01:01:06 +0000 (-0800)
Subject: [IPV6]: ROUTE: Try selecting better route for non-default routes as well.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=118f8c1654b8f2e79fa0eb8b2d84283ab62a5498;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

[IPV6]: ROUTE: Try selecting better route for non-default routes as well.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index ea6eb44618e7..605e6f14d6ab 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -415,7 +415,7 @@ void ip6_route_input(struct sk_buff *skb)
 	int attempts = 3;
 	int err;
 
-	strict = ipv6_addr_type(&skb->nh.ipv6h->daddr) & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL);
+	strict = ipv6_addr_type(&skb->nh.ipv6h->daddr) & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL) ? RT6_SELECT_F_IFACE : 0;
 
 relookup:
 	read_lock_bh(&rt6_lock);
@@ -427,12 +427,16 @@ restart:
 	rt = fn->leaf;
 
 	if ((rt->rt6i_flags & RTF_CACHE)) {
-		rt = rt6_device_match(rt, skb->dev->ifindex, strict);
+		rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict | RT6_SELECT_F_REACHABLE);
+		if (rt == &ip6_null_entry)
+			rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict);
 		BACKTRACK();
 		goto out;
 	}
 
-	rt = rt6_device_match(rt, skb->dev->ifindex, strict);
+	rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict | RT6_SELECT_F_REACHABLE);
+	if (rt == &ip6_null_entry)
+		rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict);
 	BACKTRACK();
 
 	dst_hold(&rt->u.dst);
@@ -497,7 +501,9 @@ restart:
 	rt = fn->leaf;
 
 	if ((rt->rt6i_flags & RTF_CACHE)) {
-		rt = rt6_device_match(rt, fl->oif, strict);
+		rt = rt6_select(&fn->leaf, fl->oif, strict | RT6_SELECT_F_REACHABLE);
+		if (rt == &ip6_null_entry)
+			rt = rt6_select(&fn->leaf, fl->oif, strict);
 		BACKTRACK();
 		goto out;
 	}
@@ -506,7 +512,9 @@ restart:
 		if (rt == &ip6_null_entry)
 			rt = rt6_select(&fn->leaf, fl->oif, strict);
 	} else {
-		rt = rt6_device_match(rt, fl->oif, strict);
+		rt = rt6_select(&fn->leaf, fl->oif, strict | RT6_SELECT_F_REACHABLE);
+		if (rt == &ip6_null_entry)
+			rt = rt6_select(&fn->leaf, fl->oif, strict);
 		BACKTRACK();
 	}