From: Roy Marples <roy@marples.name>
Date: Thu, 29 May 2014 06:43:54 +0000 (+0000)
Subject: Only process IPv6 neighbour messages from the link socket if we have inited
X-Git-Tag: v6.4.0~41
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=362153f5b4dde84c1a56320db935becf44a2db03;p=thirdparty%2Fdhcpcd.git

Only process IPv6 neighbour messages from the link socket if we have inited
our internal IPv6 state.
---

diff --git a/ipv6nd.c b/ipv6nd.c
index 3cbdd892..a277889e 100644
--- a/ipv6nd.c
+++ b/ipv6nd.c
@@ -350,10 +350,12 @@ ipv6nd_neighbour(struct dhcpcd_ctx *ctx, struct in6_addr *addr, int flags)
 {
 	struct ra *rap;
 
-	TAILQ_FOREACH(rap, ctx->ipv6->ra_routers, next) {
-		if (IN6_ARE_ADDR_EQUAL(&rap->from, addr)) {
-			ipv6nd_reachable(rap, flags);
-			break;
+	if (ctx->ipv6) {
+	        TAILQ_FOREACH(rap, ctx->ipv6->ra_routers, next) {
+			if (IN6_ARE_ADDR_EQUAL(&rap->from, addr)) {
+				ipv6nd_reachable(rap, flags);
+				break;
+			}
 		}
 	}
 }