From: Roy Marples <roy@marples.name>
Date: Wed, 25 May 2016 10:32:39 +0000 (+0000)
Subject: Fix some routing issues for POINTOPOINT interfaces.
X-Git-Tag: v6.11.1~16
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eeb8d62f485b39c1e4e9ad789123fd8050dfab34;p=thirdparty%2Fdhcpcd.git

Fix some routing issues for POINTOPOINT interfaces.
---

diff --git a/ipv4.c b/ipv4.c
index 09c65d7f..12945b34 100644
--- a/ipv4.c
+++ b/ipv4.c
@@ -548,6 +548,10 @@ add_subnet_route(struct rt_head *rt, const struct interface *ifp)
 	if (rt == NULL) /* earlier malloc failed */
 		return NULL;
 
+	/* P2P interfaces don't have subnet routes as such. */
+	if (ifp->flags & IFF_POINTOPOINT)
+		return rt;
+
 	state = D_CSTATE(ifp);
 	/* Don't create a subnet route for these addresses */
 	if (state->addr->mask.s_addr == INADDR_ANY)
@@ -677,6 +681,10 @@ add_router_host_route(struct rt_head *rt, const struct interface *ifp)
 	if (rt == NULL) /* earlier malloc failed */
 		return NULL;
 
+	/* Don't add a host route for these interfaces. */
+	if (ifp->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))
+		return rt;
+
 	TAILQ_FOREACH(rtp, rt, next) {
 		if (rtp->dest.s_addr != INADDR_ANY)
 			continue;