Merge branch 'for-arm' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal...

[firefly-linux-kernel-4.4.55.git] / net / openvswitch / datapath.c

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 4cb615d46363b06daa7706d09fd6d012fdb627f4..2c74daa5aca5d762deb98488b17e7fe427828f41 100644 (file)
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -321,7 +321,7 @@ static int queue_userspace_packet(int dp_ifindex, struct sk_buff *skb,
                        return -ENOMEM;
 
                nskb = __vlan_put_tag(nskb, vlan_tx_tag_get(nskb));
-               if (!skb)
+               if (!nskb)
                        return -ENOMEM;
 
                nskb->vlan_tci = 0;
@@ -421,6 +421,19 @@ static int validate_sample(const struct nlattr *attr,
        return validate_actions(actions, key, depth + 1);
 }
 
+static int validate_tp_port(const struct sw_flow_key *flow_key)
+{
+       if (flow_key->eth.type == htons(ETH_P_IP)) {
+               if (flow_key->ipv4.tp.src && flow_key->ipv4.tp.dst)
+                       return 0;
+       } else if (flow_key->eth.type == htons(ETH_P_IPV6)) {
+               if (flow_key->ipv6.tp.src && flow_key->ipv6.tp.dst)
+                       return 0;
+       }
+
+       return -EINVAL;
+}
+
 static int validate_set(const struct nlattr *a,
                        const struct sw_flow_key *flow_key)
 {
@@ -462,18 +475,13 @@ static int validate_set(const struct nlattr *a,
                if (flow_key->ip.proto != IPPROTO_TCP)
                        return -EINVAL;
 
-               if (!flow_key->ipv4.tp.src || !flow_key->ipv4.tp.dst)
-                       return -EINVAL;
-
-               break;
+               return validate_tp_port(flow_key);
 
        case OVS_KEY_ATTR_UDP:
                if (flow_key->ip.proto != IPPROTO_UDP)
                        return -EINVAL;
 
-               if (!flow_key->ipv4.tp.src || !flow_key->ipv4.tp.dst)
-                       return -EINVAL;
-               break;
+               return validate_tp_port(flow_key);
 
        default:
                return -EINVAL;
@@ -778,15 +786,18 @@ static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
        tcp_flags = flow->tcp_flags;
        spin_unlock_bh(&flow->lock);
 
-       if (used)
-               NLA_PUT_U64(skb, OVS_FLOW_ATTR_USED, ovs_flow_used_time(used));
+       if (used &&
+           nla_put_u64(skb, OVS_FLOW_ATTR_USED, ovs_flow_used_time(used)))
+               goto nla_put_failure;
 
-       if (stats.n_packets)
-               NLA_PUT(skb, OVS_FLOW_ATTR_STATS,
-                       sizeof(struct ovs_flow_stats), &stats);
+       if (stats.n_packets &&
+           nla_put(skb, OVS_FLOW_ATTR_STATS,
+                   sizeof(struct ovs_flow_stats), &stats))
+               goto nla_put_failure;
 
-       if (tcp_flags)
-               NLA_PUT_U8(skb, OVS_FLOW_ATTR_TCP_FLAGS, tcp_flags);
+       if (tcp_flags &&
+           nla_put_u8(skb, OVS_FLOW_ATTR_TCP_FLAGS, tcp_flags))
+               goto nla_put_failure;
 
        /* If OVS_FLOW_ATTR_ACTIONS doesn't fit, skip dumping the actions if
         * this is the first flow to be dumped into 'skb'.  This is unusual for
@@ -1168,7 +1179,8 @@ static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb,
                goto nla_put_failure;
 
        get_dp_stats(dp, &dp_stats);
-       NLA_PUT(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats), &dp_stats);
+       if (nla_put(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats), &dp_stats))
+               goto nla_put_failure;
 
        return genlmsg_end(skb, ovs_header);
 
@@ -1468,14 +1480,16 @@ static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb,
 
        ovs_header->dp_ifindex = get_dpifindex(vport->dp);
 
-       NLA_PUT_U32(skb, OVS_VPORT_ATTR_PORT_NO, vport->port_no);
-       NLA_PUT_U32(skb, OVS_VPORT_ATTR_TYPE, vport->ops->type);
-       NLA_PUT_STRING(skb, OVS_VPORT_ATTR_NAME, vport->ops->get_name(vport));
-       NLA_PUT_U32(skb, OVS_VPORT_ATTR_UPCALL_PID, vport->upcall_pid);
+       if (nla_put_u32(skb, OVS_VPORT_ATTR_PORT_NO, vport->port_no) ||
+           nla_put_u32(skb, OVS_VPORT_ATTR_TYPE, vport->ops->type) ||
+           nla_put_string(skb, OVS_VPORT_ATTR_NAME, vport->ops->get_name(vport)) ||
+           nla_put_u32(skb, OVS_VPORT_ATTR_UPCALL_PID, vport->upcall_pid))
+               goto nla_put_failure;
 
        ovs_vport_get_stats(vport, &vport_stats);
-       NLA_PUT(skb, OVS_VPORT_ATTR_STATS, sizeof(struct ovs_vport_stats),
-               &vport_stats);
+       if (nla_put(skb, OVS_VPORT_ATTR_STATS, sizeof(struct ovs_vport_stats),
+                   &vport_stats))
+               goto nla_put_failure;
 
        err = ovs_vport_get_options(vport, skb);
        if (err == -EMSGSIZE)