#include <linux/if_tunnel.h>
#include <linux/if_vlan.h>
#include <linux/in.h>
-#include <linux/if_vlan.h>
-#include <linux/in.h>
#include <linux/in_route.h>
#include <linux/inetdevice.h>
#include <linux/jhash.h>
return PACKET_RCVD;
}
+/* Called with rcu_read_lock and BH disabled. */
+static int gre_err(struct sk_buff *skb, u32 info,
+ const struct tnl_ptk_info *tpi)
+{
+ struct ovs_net *ovs_net;
+ struct vport *vport;
+
+ ovs_net = net_generic(dev_net(skb->dev), ovs_net_id);
+ if ((tpi->flags & TUNNEL_KEY) && (tpi->flags & TUNNEL_SEQ))
+ vport = rcu_dereference(ovs_net->vport_net.gre64_vport);
+ else
+ vport = rcu_dereference(ovs_net->vport_net.gre_vport);
+
+ if (unlikely(!vport))
+ return PACKET_REJECT;
+ else
+ return PACKET_RCVD;
+}
+
static int __send(struct vport *vport, struct sk_buff *skb,
int tunnel_hlen,
__be32 seq, __be16 gre64_flag)
{
- struct net *net = ovs_dp_get_net(vport->dp);
struct rtable *rt;
int min_headroom;
__be16 df;
__be32 saddr;
int err;
- forward_ip_summed(skb, true);
-
/* Route lookup */
saddr = OVS_CB(skb)->tun_key->ipv4_src;
rt = find_route(ovs_dp_get_net(vport->dp),
goto err_free_rt;
}
- if (unlikely(vlan_deaccel_tag(skb))) {
- err = -ENOMEM;
- goto err_free_rt;
+ if (vlan_tx_tag_present(skb)) {
+ if (unlikely(!__vlan_put_tag(skb,
+ skb->vlan_proto,
+ vlan_tx_tag_get(skb)))) {
+ err = -ENOMEM;
+ goto err_free_rt;
+ }
+ vlan_set_tci(skb, 0);
}
/* Push Tunnel header. */
skb->local_df = 1;
- return iptunnel_xmit(net, rt, skb, saddr,
+ return iptunnel_xmit(rt, skb, saddr,
OVS_CB(skb)->tun_key->ipv4_dst, IPPROTO_GRE,
OVS_CB(skb)->tun_key->ipv4_tos,
- OVS_CB(skb)->tun_key->ipv4_ttl, df);
+ OVS_CB(skb)->tun_key->ipv4_ttl, df, false);
err_free_rt:
ip_rt_put(rt);
error:
static struct gre_cisco_protocol gre_protocol = {
.handler = gre_rcv,
+ .err_handler = gre_err,
.priority = 1,
};
ovs_net = net_generic(net, ovs_net_id);
- rcu_assign_pointer(ovs_net->vport_net.gre_vport, NULL);
+ RCU_INIT_POINTER(ovs_net->vport_net.gre_vport, NULL);
ovs_vport_deferred_free(vport);
gre_exit();
}