From: Roy Marples <roy@marples.name>
Date: Fri, 17 Mar 2017 17:38:42 +0000 (+0000)
Subject: If the kernel isn't doing DAD for our newly added address, let it pass so we can... 
X-Git-Tag: v7.0.0-beta1~43
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2ced8364da244926a2b8f80a99813bdfe63ec30;p=thirdparty%2Fdhcpcd.git

If the kernel isn't doing DAD for our newly added address, let it pass so we can mark it as DAD complete.
---

diff --git a/src/if-bsd.c b/src/if-bsd.c
index 97674083..cad721d5 100644
--- a/src/if-bsd.c
+++ b/src/if-bsd.c
@@ -958,8 +958,15 @@ if_ifa(struct dhcpcd_ctx *ctx, const struct ifa_msghdr *ifam)
 	int addrflags;
 
 #ifdef HAVE_IFAM_PID
-	if (if_ownmsgpid(ctx, ifam->ifam_pid, 0))
-		return;
+	if (if_ownmsgpid(ctx, ifam->ifam_pid, 0)) {
+#ifdef HAVE_IFAM_ADDRFLAGS
+		/* If the kernel isn't doing DAD for the newly added
+		 * address we need to let it through. */
+		if (ifam->ifam_type != RTM_NEWADDR ||
+		    ifam->ifam_addrflags & IN_IFF_TENTATIVE)
+#endif
+			return;
+	}
 #endif
 
 	if ((ifp = if_findindex(ctx->ifaces, ifam->ifam_index)) == NULL)