ipv6: weaken the v4mapped source check

[linux-2.6-microblaze.git] / net / dccp / ipv6.c

diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 1f73603..2be5c69 100644 (file)
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -319,6 +319,11 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
        if (!ipv6_unicast_destination(skb))
                return 0;       /* discard, don't send a reset here */
 
+       if (ipv6_addr_v4mapped(&ipv6_hdr(skb)->saddr)) {
+               __IP6_INC_STATS(sock_net(sk), NULL, IPSTATS_MIB_INHDRERRORS);
+               return 0;
+       }
+
        if (dccp_bad_service_code(sk, service)) {
                dcb->dccpd_reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
                goto drop;