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

Completely minor snmp doc conflict.

Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 34 insertions, 23 deletions

diff --git a/net/ipv6/fou6.c b/net/ipv6/fou6.c
index 7da7bf3b7fe3..b858bd5280bf 100644
--- a/net/ipv6/fou6.c
+++ b/net/ipv6/fou6.c
@@ -90,10 +90,11 @@ static int gue6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 {
 	int transport_offset = skb_transport_offset(skb);
 	struct guehdr *guehdr;
-	size_t optlen;
+	size_t len, optlen;
 	int ret;
 
-	if (skb->len < sizeof(struct udphdr) + sizeof(struct guehdr))
+	len = sizeof(struct udphdr) + sizeof(struct guehdr);
+	if (!pskb_may_pull(skb, len))
 		return -EINVAL;
 
 	guehdr = (struct guehdr *)&udp_hdr(skb)[1];
@@ -128,6 +129,10 @@ static int gue6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 
 	optlen = guehdr->hlen << 2;
 
+	if (!pskb_may_pull(skb, len + optlen))
+		return -EINVAL;
+
+	guehdr = (struct guehdr *)&udp_hdr(skb)[1];
 	if (validate_gue_flags(guehdr, optlen))
 		return -EINVAL;
 
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 4a1a86e9c0e9..c465d8a102f2 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -922,6 +922,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
 	__u8 dsfield = false;
 	struct flowi6 fl6;
 	int err = -EINVAL;
+	__be16 proto;
 	__u32 mtu;
 	int nhoff;
 	int thoff;
@@ -1035,8 +1036,9 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
 	}
 
 	/* Push GRE header. */
-	gre_build_header(skb, 8, TUNNEL_SEQ,
-			 htons(ETH_P_ERSPAN), 0, htonl(t->o_seqno++));
+	proto = (t->parms.erspan_ver == 1) ? htons(ETH_P_ERSPAN)
+					   : htons(ETH_P_ERSPAN2);
+	gre_build_header(skb, 8, TUNNEL_SEQ, proto, 0, htonl(t->o_seqno++));
 
 	/* TooBig packet may have updated dst->dev's mtu */
 	if (!t->parms.collect_md && dst && dst_mtu(dst) > dst->dev->mtu)
@@ -1169,6 +1171,10 @@ static void ip6gre_tnl_copy_tnl_parm(struct ip6_tnl *t,
 	t->parms.i_flags = p->i_flags;
 	t->parms.o_flags = p->o_flags;
 	t->parms.fwmark = p->fwmark;
+	t->parms.erspan_ver = p->erspan_ver;
+	t->parms.index = p->index;
+	t->parms.dir = p->dir;
+	t->parms.hwid = p->hwid;
 	dst_cache_reset(&t->dst_cache);
 }
 
@@ -2025,9 +2031,9 @@ static int ip6gre_changelink(struct net_device *dev, struct nlattr *tb[],
 			     struct nlattr *data[],
 			     struct netlink_ext_ack *extack)
 {
-	struct ip6gre_net *ign = net_generic(dev_net(dev), ip6gre_net_id);
+	struct ip6_tnl *t = netdev_priv(dev);
+	struct ip6gre_net *ign = net_generic(t->net, ip6gre_net_id);
 	struct __ip6_tnl_parm p;
-	struct ip6_tnl *t;
 
 	t = ip6gre_changelink_common(dev, tb, data, &p, extack);
 	if (IS_ERR(t))
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 8e11f9a557b1..dc066fdf7e46 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4251,17 +4251,6 @@ struct rt6_nh {
 	struct list_head next;
 };
 
-static void ip6_print_replace_route_err(struct list_head *rt6_nh_list)
-{
-	struct rt6_nh *nh;
-
-	list_for_each_entry(nh, rt6_nh_list, next) {
-		pr_warn("IPV6: multipath route replace failed (check consistency of installed routes): %pI6c nexthop %pI6c ifi %d\n",
-		        &nh->r_cfg.fc_dst, &nh->r_cfg.fc_gateway,
-		        nh->r_cfg.fc_ifindex);
-	}
-}
-
 static int ip6_route_info_append(struct net *net,
 				 struct list_head *rt6_nh_list,
 				 struct fib6_info *rt,
@@ -4407,7 +4396,8 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
 		nh->fib6_info = NULL;
 		if (err) {
 			if (replace && nhn)
-				ip6_print_replace_route_err(&rt6_nh_list);
+				NL_SET_ERR_MSG_MOD(extack,
+						   "multipath route replace failed (check consistency of installed routes)");
 			err_nh = nh;
 			goto add_errout;
 		}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 7c3505006f8e..2596ffdeebea 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -102,7 +102,7 @@ int udp_v6_get_port(struct sock *sk, unsigned short snum)
 	return udp_lib_get_port(sk, snum, hash2_nulladdr);
 }
 
-static void udp_v6_rehash(struct sock *sk)
+void udp_v6_rehash(struct sock *sk)
 {
 	u16 new_hash = ipv6_portaddr_hash(sock_net(sk),
 					  &sk->sk_v6_rcv_saddr,
@@ -1132,15 +1132,23 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6,
 		const int hlen = skb_network_header_len(skb) +
 				 sizeof(struct udphdr);
 
-		if (hlen + cork->gso_size > cork->fragsize)
+		if (hlen + cork->gso_size > cork->fragsize) {
+			kfree_skb(skb);
 			return -EINVAL;
-		if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS)
+		}
+		if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
+			kfree_skb(skb);
 			return -EINVAL;
-		if (udp_sk(sk)->no_check6_tx)
+		}
+		if (udp_sk(sk)->no_check6_tx) {
+			kfree_skb(skb);
 			return -EINVAL;
+		}
 		if (skb->ip_summed != CHECKSUM_PARTIAL || is_udplite ||
-		    dst_xfrm(skb_dst(skb)))
+		    dst_xfrm(skb_dst(skb))) {
+			kfree_skb(skb);
 			return -EIO;
+		}
 
 		skb_shinfo(skb)->gso_size = cork->gso_size;
 		skb_shinfo(skb)->gso_type = SKB_GSO_UDP_L4;
diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h
index 5730e6503cb4..20e324b6f358 100644
--- a/net/ipv6/udp_impl.h
+++ b/net/ipv6/udp_impl.h
@@ -13,6 +13,7 @@ int __udp6_lib_err(struct sk_buff *, struct inet6_skb_parm *, u8, u8, int,
 		   __be32, struct udp_table *);
 
 int udp_v6_get_port(struct sock *sk, unsigned short snum);
+void udp_v6_rehash(struct sock *sk);
 
 int udpv6_getsockopt(struct sock *sk, int level, int optname,
 		     char __user *optval, int __user *optlen);
diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c
index a125aebc29e5..f35907836444 100644
--- a/net/ipv6/udplite.c
+++ b/net/ipv6/udplite.c
@@ -49,6 +49,7 @@ struct proto udplitev6_prot = {
 	.recvmsg	   = udpv6_recvmsg,
 	.hash		   = udp_lib_hash,
 	.unhash		   = udp_lib_unhash,
+	.rehash		   = udp_v6_rehash,
 	.get_port	   = udp_v6_get_port,
 	.memory_allocated  = &udp_memory_allocated,
 	.sysctl_mem	   = sysctl_udp_mem,