1 files changed, 25 insertions, 18 deletions

diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index cd479903d..6c54e03fe 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -128,6 +128,7 @@ static inline struct sock *l2tp_ip6_bind_lookup(struct net *net,
  */
 static int l2tp_ip6_recv(struct sk_buff *skb)
 {
+	struct net *net = dev_net(skb->dev);
 	struct sock *sk;
 	u32 session_id;
 	u32 tunnel_id;
@@ -154,7 +155,7 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
 	}
 
 	/* Ok, this is a data packet. Lookup the session. */
-	session = l2tp_session_find(&init_net, NULL, session_id);
+	session = l2tp_session_find(net, NULL, session_id);
 	if (session == NULL)
 		goto discard;
 
@@ -188,14 +189,14 @@ pass_up:
 		goto discard;
 
 	tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
-	tunnel = l2tp_tunnel_find(&init_net, tunnel_id);
+	tunnel = l2tp_tunnel_find(net, tunnel_id);
 	if (tunnel != NULL)
 		sk = tunnel->sock;
 	else {
 		struct ipv6hdr *iph = ipv6_hdr(skb);
 
 		read_lock_bh(&l2tp_ip6_lock);
-		sk = __l2tp_ip6_bind_lookup(&init_net, &iph->daddr,
+		sk = __l2tp_ip6_bind_lookup(net, &iph->daddr,
 					    0, tunnel_id);
 		read_unlock_bh(&l2tp_ip6_lock);
 	}
@@ -263,6 +264,7 @@ static int l2tp_ip6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	struct inet_sock *inet = inet_sk(sk);
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct sockaddr_l2tpip6 *addr = (struct sockaddr_l2tpip6 *) uaddr;
+	struct net *net = sock_net(sk);
 	__be32 v4addr = 0;
 	int addr_type;
 	int err;
@@ -286,7 +288,7 @@ static int l2tp_ip6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 
 	err = -EADDRINUSE;
 	read_lock_bh(&l2tp_ip6_lock);
-	if (__l2tp_ip6_bind_lookup(&init_net, &addr->l2tp_addr,
+	if (__l2tp_ip6_bind_lookup(net, &addr->l2tp_addr,
 				   sk->sk_bound_dev_if, addr->l2tp_conn_id))
 		goto out_in_use;
 	read_unlock_bh(&l2tp_ip6_lock);
@@ -456,7 +458,7 @@ static int l2tp_ip6_backlog_recv(struct sock *sk, struct sk_buff *skb)
 	return 0;
 
 drop:
-	IP_INC_STATS(&init_net, IPSTATS_MIB_INDISCARDS);
+	IP_INC_STATS(sock_net(sk), IPSTATS_MIB_INDISCARDS);
 	kfree_skb(skb);
 	return -1;
 }
@@ -494,10 +496,9 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 	struct ip6_flowlabel *flowlabel = NULL;
 	struct dst_entry *dst = NULL;
 	struct flowi6 fl6;
+	struct sockcm_cookie sockc_unused = {0};
+	struct ipcm6_cookie ipc6;
 	int addr_len = msg->msg_namelen;
-	int hlimit = -1;
-	int tclass = -1;
-	int dontfrag = -1;
 	int transhdrlen = 4; /* zero session-id */
 	int ulen = len + transhdrlen;
 	int err;
@@ -519,6 +520,10 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 
 	fl6.flowi6_mark = sk->sk_mark;
 
+	ipc6.hlimit = -1;
+	ipc6.tclass = -1;
+	ipc6.dontfrag = -1;
+
 	if (lsa) {
 		if (addr_len < SIN6_LEN_RFC2133)
 			return -EINVAL;
@@ -563,9 +568,10 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		opt = &opt_space;
 		memset(opt, 0, sizeof(struct ipv6_txoptions));
 		opt->tot_len = sizeof(struct ipv6_txoptions);
+		ipc6.opt = opt;
 
-		err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, opt,
-					    &hlimit, &tclass, &dontfrag);
+		err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, &ipc6,
+					    &sockc_unused);
 		if (err < 0) {
 			fl6_sock_release(flowlabel);
 			return err;
@@ -586,6 +592,7 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 	if (flowlabel)
 		opt = fl6_merge_options(&opt_space, flowlabel, opt);
 	opt = ipv6_fixup_options(&opt_space, opt);
+	ipc6.opt = opt;
 
 	fl6.flowi6_proto = sk->sk_protocol;
 	if (!ipv6_addr_any(daddr))
@@ -610,14 +617,14 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		goto out;
 	}
 
-	if (hlimit < 0)
-		hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst);
+	if (ipc6.hlimit < 0)
+		ipc6.hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst);
 
-	if (tclass < 0)
-		tclass = np->tclass;
+	if (ipc6.tclass < 0)
+		ipc6.tclass = np->tclass;
 
-	if (dontfrag < 0)
-		dontfrag = np->dontfrag;
+	if (ipc6.dontfrag < 0)
+		ipc6.dontfrag = np->dontfrag;
 
 	if (msg->msg_flags & MSG_CONFIRM)
 		goto do_confirm;
@@ -625,9 +632,9 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 back_from_confirm:
 	lock_sock(sk);
 	err = ip6_append_data(sk, ip_generic_getfrag, msg,
-			      ulen, transhdrlen, hlimit, tclass, opt,
+			      ulen, transhdrlen, &ipc6,
 			      &fl6, (struct rt6_info *)dst,
-			      msg->msg_flags, dontfrag);
+			      msg->msg_flags, &sockc_unused);
 	if (err)
 		ip6_flush_pending_frames(sk);
 	else if (!(msg->msg_flags & MSG_MORE))