Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

net/ipv4/af_inet.c

@@ -228,13 +228,14 @@ static int inet_create(struct socket *sock, int protocol)
 	unsigned char answer_flags;
 	char answer_no_check;
 	int try_loading_module = 0;
-	int err = -ESOCKTNOSUPPORT;
+	int err;
 
 	sock->state = SS_UNCONNECTED;
 
 	/* Look for the requested type/protocol pair. */
 	answer = NULL;
 lookup_protocol:
+	err = -ESOCKTNOSUPPORT;
 	rcu_read_lock();
 	list_for_each_rcu(p, &inetsw[sock->type]) {
 		answer = list_entry(p, struct inet_protosw, list);
@@ -252,6 +253,7 @@ lookup_protocol:
 			if (IPPROTO_IP == answer->protocol)
 				break;
 		}
+		err = -EPROTONOSUPPORT;
 		answer = NULL;
 	}
 
@@ -280,9 +282,6 @@ lookup_protocol:
 	err = -EPERM;
 	if (answer->capability > 0 && !capable(answer->capability))
 		goto out_rcu_unlock;
-	err = -EPROTONOSUPPORT;
-	if (!protocol)
-		goto out_rcu_unlock;
 
 	sock->ops = answer->ops;
 	answer_prot = answer->prot;

net/ipv4/igmp.c

@@ -897,6 +897,9 @@ int igmp_rcv(struct sk_buff *skb)
 		/* Is it our report looped back? */
 		if (((struct rtable*)skb->dst)->fl.iif == 0)
 			break;
+		/* don't rely on MC router hearing unicast reports */
+		if (skb->pkt_type == PACKET_MULTICAST ||
+		    skb->pkt_type == PACKET_BROADCAST)
 			igmp_heard_report(in_dev, ih->group);
 		break;
 	case IGMP_PIM:

net/ipv6/af_inet6.c

@@ -92,10 +92,13 @@ static int inet6_create(struct socket *sock, int protocol)
 	struct proto *answer_prot;
 	unsigned char answer_flags;
 	char answer_no_check;
-	int rc;
+	int try_loading_module = 0;
+	int err;
 
 	/* Look for the requested type/protocol pair. */
 	answer = NULL;
+lookup_protocol:
+	err = -ESOCKTNOSUPPORT;
 	rcu_read_lock();
 	list_for_each_rcu(p, &inetsw6[sock->type]) {
 		answer = list_entry(p, struct inet_protosw, list);
@@ -113,21 +116,37 @@ static int inet6_create(struct socket *sock, int protocol)
 			if (IPPROTO_IP == answer->protocol)
 				break;
 		}
+		err = -EPROTONOSUPPORT;
 		answer = NULL;
 	}
 
-	rc = -ESOCKTNOSUPPORT;
-	if (!answer)
+	if (!answer) {
+		if (try_loading_module < 2) {
+			rcu_read_unlock();
+			/*
+			 * Be more specific, e.g. net-pf-10-proto-132-type-1
+			 * (net-pf-PF_INET6-proto-IPPROTO_SCTP-type-SOCK_STREAM)
+			 */
+			if (++try_loading_module == 1)
+				request_module("net-pf-%d-proto-%d-type-%d",
+						PF_INET6, protocol, sock->type);
+			/*
+			 * Fall back to generic, e.g. net-pf-10-proto-132
+			 * (net-pf-PF_INET6-proto-IPPROTO_SCTP)
+			 */
+			else
+				request_module("net-pf-%d-proto-%d",
+						PF_INET6, protocol);
+			goto lookup_protocol;
+		} else
 			goto out_rcu_unlock;
-	rc = -EPERM;
+	}
+
+	err = -EPERM;
 	if (answer->capability > 0 && !capable(answer->capability))
 		goto out_rcu_unlock;
-	rc = -EPROTONOSUPPORT;
-	if (!protocol)
-		goto out_rcu_unlock;
 
 	sock->ops = answer->ops;
-
 	answer_prot = answer->prot;
 	answer_no_check = answer->no_check;
 	answer_flags = answer->flags;
@@ -135,14 +154,14 @@ static int inet6_create(struct socket *sock, int protocol)
 
 	BUG_TRAP(answer_prot->slab != NULL);
 
-	rc = -ENOBUFS;
+	err = -ENOBUFS;
 	sk = sk_alloc(PF_INET6, GFP_KERNEL, answer_prot, 1);
 	if (sk == NULL)
 		goto out;
 
 	sock_init_data(sock, sk);
 
-	rc = 0;
+	err = 0;
 	sk->sk_no_check = answer_no_check;
 	if (INET_PROTOSW_REUSE & answer_flags)
 		sk->sk_reuse = 1;
@@ -202,14 +221,14 @@ static int inet6_create(struct socket *sock, int protocol)
 		sk->sk_prot->hash(sk);
 	}
 	if (sk->sk_prot->init) {
-		rc = sk->sk_prot->init(sk);
-		if (rc) {
+		err = sk->sk_prot->init(sk);
+		if (err) {
 			sk_common_release(sk);
 			goto out;
 		}
 	}
 out:
-	return rc;
+	return err;
 out_rcu_unlock:
 	rcu_read_unlock();
 	goto out;

net/ipv6/mcast.c

@@ -1231,6 +1231,11 @@ int igmp6_event_report(struct sk_buff *skb)
 	if (skb->pkt_type == PACKET_LOOPBACK)
 		return 0;
 
+	/* send our report if the MC router may not have heard this report */
+	if (skb->pkt_type != PACKET_MULTICAST &&
+	    skb->pkt_type != PACKET_BROADCAST)
+		return 0;
+
 	if (!pskb_may_pull(skb, sizeof(struct in6_addr)))
 		return -EINVAL;
 

net/sctp/socket.c

@@ -4743,11 +4743,6 @@ static struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
 	struct sk_buff *skb;
 	long timeo;
 
-	/* Caller is allowed not to check sk->sk_err before calling.  */
-	error = sock_error(sk);
-	if (error)
-		goto no_packet;
-
 	timeo = sock_rcvtimeo(sk, noblock);
 
 	SCTP_DEBUG_PRINTK("Timeout: timeo: %ld, MAX: %ld.\n",
@@ -4774,6 +4769,11 @@ static struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
 		if (skb)
 			return skb;
 
+		/* Caller is allowed not to check sk->sk_err before calling. */
+		error = sock_error(sk);
+		if (error)
+			goto no_packet;
+
 		if (sk->sk_shutdown & RCV_SHUTDOWN)
 			break;
 

net/sctp/transport.c

@@ -261,7 +261,8 @@ void sctp_transport_route(struct sctp_transport *transport,
 		 * association's active path for getsockname().
 		 */ 
 		if (asoc && (transport == asoc->peer.active_path))
-			af->to_sk_saddr(&transport->saddr, asoc->base.sk);
+			opt->pf->af->to_sk_saddr(&transport->saddr,
+						 asoc->base.sk);
 	} else
 		transport->pmtu = SCTP_DEFAULT_MAXSEGMENT;
 }