2 * Copyright (c) 2007-2012 Nicira, Inc.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of version 2 of the GNU General Public
6 * License as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 #include <linux/version.h>
23 #include <net/net_namespace.h>
24 #include <net/netns/generic.h>
29 struct rtable *find_route(struct net *net,
30 __be32 *saddr, __be32 daddr, u8 ipproto,
31 u8 tos, u32 skb_mark);
33 u16 ovs_tnl_get_src_port(struct sk_buff *skb);
35 int ovs_tnl_send(struct vport *vport, struct sk_buff *skb,
36 u8 ipproto, int tunnel_hlen,
37 void (*build_header)(const struct vport *,
41 void ovs_tnl_rcv(struct vport *vport, struct sk_buff *skb,
42 struct ovs_key_ipv4_tunnel *tun_key);
44 static inline void tnl_tun_key_init(struct ovs_key_ipv4_tunnel *tun_key,
45 const struct iphdr *iph, __be64 tun_id,
48 tun_key->tun_id = tun_id;
49 tun_key->ipv4_src = iph->saddr;
50 tun_key->ipv4_dst = iph->daddr;
51 tun_key->ipv4_tos = iph->tos;
52 tun_key->ipv4_ttl = iph->ttl;
53 tun_key->tun_flags = tun_flags;
55 /* clear struct padding. */
56 memset((unsigned char*) tun_key + OVS_TUNNEL_KEY_SIZE, 0,
57 sizeof(*tun_key) - OVS_TUNNEL_KEY_SIZE);