From: Roy Marples <roy@marples.name>
Date: Fri, 7 Sep 2018 13:01:36 +0000 (+0100)
Subject: dhcp6: only send dhcp6 to an interface if it has a send object.
X-Git-Tag: v7.1.0~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dfd89cbc1fd2dc461d413dd2c29d28021571201e;p=thirdparty%2Fdhcpcd.git

dhcp6: only send dhcp6 to an interface if it has a send object.
---

diff --git a/src/dhcp6.c b/src/dhcp6.c
index b95dcd41..de51ee56 100644
--- a/src/dhcp6.c
+++ b/src/dhcp6.c
@@ -3542,7 +3542,8 @@ dhcp6_recv(struct dhcpcd_ctx *ctx, struct ipv6_addr *ia)
 		    " sending to all interfaces",
 		    ifp->name, ctx->sfrom);
 		TAILQ_FOREACH(ifp, ctx->ifaces, next) {
-			if (D6_CSTATE(ifp) != NULL)
+			state = D6_CSTATE(ifp);
+			if (state != NULL && state->send != NULL)
 				dhcp6_recvif(ifp, r, len);
 		}
 		return;