Merge tag 'omap-for-v3.16/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / include / net / vxlan.h
1 #ifndef __NET_VXLAN_H
2 #define __NET_VXLAN_H 1
3
4 #include <linux/skbuff.h>
5 #include <linux/netdevice.h>
6 #include <linux/udp.h>
7
8 #define VNI_HASH_BITS 10
9 #define VNI_HASH_SIZE (1<<VNI_HASH_BITS)
10
11 struct vxlan_sock;
12 typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key);
13
14 /* per UDP socket information */
15 struct vxlan_sock {
16 struct hlist_node hlist;
17 vxlan_rcv_t *rcv;
18 void *data;
19 struct work_struct del_work;
20 struct socket *sock;
21 struct rcu_head rcu;
22 struct hlist_head vni_list[VNI_HASH_SIZE];
23 atomic_t refcnt;
24 struct udp_offload udp_offloads;
25 };
26
27 #define VXLAN_F_LEARN 0x01
28 #define VXLAN_F_PROXY 0x02
29 #define VXLAN_F_RSC 0x04
30 #define VXLAN_F_L2MISS 0x08
31 #define VXLAN_F_L3MISS 0x10
32 #define VXLAN_F_IPV6 0x20
33 #define VXLAN_F_UDP_CSUM 0x40
34 #define VXLAN_F_UDP_ZERO_CSUM6_TX 0x80
35 #define VXLAN_F_UDP_ZERO_CSUM6_RX 0x100
36
37 struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port,
38 vxlan_rcv_t *rcv, void *data,
39 bool no_share, u32 flags);
40
41 void vxlan_sock_release(struct vxlan_sock *vs);
42
43 int vxlan_xmit_skb(struct vxlan_sock *vs,
44 struct rtable *rt, struct sk_buff *skb,
45 __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
46 __be16 src_port, __be16 dst_port, __be32 vni, bool xnet);
47
48 __be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb);
49
50 /* IP header + UDP + VXLAN + Ethernet header */
51 #define VXLAN_HEADROOM (20 + 8 + 8 + 14)
52 /* IPv6 header + UDP + VXLAN + Ethernet header */
53 #define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
54
55 #if IS_ENABLED(CONFIG_VXLAN)
56 void vxlan_get_rx_port(struct net_device *netdev);
57 #else
58 static inline void vxlan_get_rx_port(struct net_device *netdev)
59 {
60 }
61 #endif
62 #endif
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