From: Roy Marples <roy@marples.name>
Date: Sat, 7 Sep 2013 11:13:05 +0000 (+0000)
Subject: Don't bother managing a /128 prefix.
X-Git-Tag: v6.1.0~19
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=eea72a8a972b0dc017205a1af8b5a9e061a3f47f;p=thirdparty%2Fdhcpcd.git

Don't bother managing a /128 prefix.
---

diff --git a/ipv6.c b/ipv6.c
index e384e9af..a47c4fc5 100644
--- a/ipv6.c
+++ b/ipv6.c
@@ -815,7 +815,13 @@ make_prefix(const struct interface * ifp, const struct ra *rap,
 {
 	struct rt6 *r;
 
-	if (addr == NULL || addr->prefix_len > 128)
+	if (addr == NULL || addr->prefix_len > 128) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	/* There is no point in trying to manage a /128 prefix. */
+	if (addr->prefix_len == 128)
 		return NULL;
 
 	r = make_route(ifp, rap);