diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 23675ef..bf17aab 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -663,6 +663,27 @@
 
 EXPORT_SYMBOL_GPL(inet6_sk_rebuild_header);
 
+int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb)
+{
+	struct ipv6_pinfo *np = inet6_sk(sk);
+	struct inet6_skb_parm *opt = IP6CB(skb);
+
+	if (np->rxopt.all) {
+		if ((opt->hop && (np->rxopt.bits.hopopts ||
+				  np->rxopt.bits.ohopopts)) ||
+		    ((IPV6_FLOWINFO_MASK & *(u32*)skb->nh.raw) &&
+		     np->rxopt.bits.rxflow) ||
+		    (opt->srcrt && (np->rxopt.bits.srcrt ||
+		     np->rxopt.bits.osrcrt)) ||
+		    ((opt->dst1 || opt->dst0) &&
+		     (np->rxopt.bits.dstopts || np->rxopt.bits.odstopts)))
+			return 1;
+	}
+	return 0;
+}
+
+EXPORT_SYMBOL_GPL(ipv6_opt_accepted);
+
 int
 snmp6_mib_init(void *ptr[2], size_t mibsize, size_t mibalign)
 {