From: Roy Marples <roy@marples.name>
Date: Thu, 30 Jun 2016 10:39:28 +0000 (+0000)
Subject: Don't add our own IPv6 LLADDR if the OS doesn't allow us turning the OS doing it... 
X-Git-Tag: v6.11.2~34
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4dbfde2bc0bf353e58793a027364a4fd7bbcc87b;p=thirdparty%2Fdhcpcd.git

Don't add our own IPv6 LLADDR if the OS doesn't allow us turning the OS doing it off.
---

diff --git a/ipv6.c b/ipv6.c
index 05c9c3b5..41c2eec3 100644
--- a/ipv6.c
+++ b/ipv6.c
@@ -106,8 +106,14 @@
 #define CAN_ADD_LLADDR(ifp) \
 	(!((ifp)->options->options & DHCPCD_SLAACPRIVATE) || \
 	    (ifp)->carrier != LINK_DOWN)
-#else
+#elif __NetBSD__
+/* Earlier versions of NetBSD don't add duplicate LLADDR's if the interface
+ * is brought up and one already exists. */
 #define CAN_ADD_LLADDR(ifp) (1)
+#else
+/* We have no control over the OS adding the LLADDR, so just let it do it
+ * as we cannot force our own view on it. */
+#define CAN_ADD_LLADDR(ifp) (0)
 #endif
 
 #ifdef IPV6_MANAGETEMPADDR