From: Roy Marples <roy@marples.name>
Date: Mon, 5 Sep 2016 21:19:29 +0000 (+0000)
Subject: If we need to poll for address flags, do this for tentative link-local addresses... 
X-Git-Tag: v6.11.4~45
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0cc611febe68b004bee2cadf61c946d2c41fdb5d;p=thirdparty%2Fdhcpcd.git

If we need to poll for address flags, do this for tentative link-local addresses too.
---

diff --git a/ipv6.c b/ipv6.c
index a43301d1..4e594bb5 100644
--- a/ipv6.c
+++ b/ipv6.c
@@ -1437,14 +1437,28 @@ nextslaacprivate:
 static int
 ipv6_tryaddlinklocal(struct interface *ifp)
 {
+	struct ipv6_addr *ia;
 
 	/* We can't assign a link-locak address to this,
 	 * the ppp process has to. */
 	if (ifp->flags & IFF_POINTOPOINT)
 		return 0;
 
-	if (ipv6_iffindaddr(ifp, NULL, IN6_IFF_DUPLICATED) != NULL ||
-	    !CAN_ADD_LLADDR(ifp))
+	ia = ipv6_iffindaddr(ifp, NULL, IN6_IFF_DUPLICATED);
+	if (ia != NULL) {
+#ifdef IPV6_POLLADDRFLAG
+		if (ia->addr_flags & IN6_IFF_TENTATIVE) {
+			struct timespec tv;
+
+			ms_to_ts(&tv, RETRANS_TIMER / 2);
+			eloop_timeout_add_tv(
+			    ia->iface->ctx->eloop,
+			    &tv, ipv6_checkaddrflags, ia);
+		}
+#endif
+		return 0;
+	}
+	if (!CAN_ADD_LLADDR(ifp))
 		return 0;
 
 	return ipv6_addlinklocal(ifp);