| Pravin B Shelar | 012a572 | 2013-08-19 11:23:07 -0700 | [diff] [blame] | 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; |
| Or Gerlitz | dc01e7d | 2014-01-20 13:59:21 +0200 | [diff] [blame] | 24 | struct udp_offload udp_offloads; |
| Pravin B Shelar | 012a572 | 2013-08-19 11:23:07 -0700 | [diff] [blame] | 25 | }; |
| 26 | |
| Tom Herbert | 359a0ea | 2014-06-04 17:20:29 -0700 | [diff] [blame^] | 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 | |
| Pravin B Shelar | 012a572 | 2013-08-19 11:23:07 -0700 | [diff] [blame] | 37 | struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port, |
| 38 | vxlan_rcv_t *rcv, void *data, |
| Tom Herbert | 359a0ea | 2014-06-04 17:20:29 -0700 | [diff] [blame^] | 39 | bool no_share, u32 flags); |
| Pravin B Shelar | 012a572 | 2013-08-19 11:23:07 -0700 | [diff] [blame] | 40 | |
| 41 | void vxlan_sock_release(struct vxlan_sock *vs); |
| Pravin B Shelar | 4956053 | 2013-08-19 11:23:17 -0700 | [diff] [blame] | 42 | |
| Nicolas Dichtel | 1179618 | 2013-09-02 15:34:55 +0200 | [diff] [blame] | 43 | int vxlan_xmit_skb(struct vxlan_sock *vs, |
| Pravin B Shelar | 4956053 | 2013-08-19 11:23:17 -0700 | [diff] [blame] | 44 | struct rtable *rt, struct sk_buff *skb, |
| 45 | __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df, |
| Nicolas Dichtel | f01ec1c | 2014-04-24 10:02:49 +0200 | [diff] [blame] | 46 | __be16 src_port, __be16 dst_port, __be32 vni, bool xnet); |
| Pravin B Shelar | 4956053 | 2013-08-19 11:23:17 -0700 | [diff] [blame] | 47 | |
| 48 | __be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb); |
| 49 | |
| Joseph Gasparakis | e6cd988 | 2013-10-24 06:27:10 +0000 | [diff] [blame] | 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) |
| Joseph Gasparakis | 53cf5275 | 2013-09-04 02:13:38 -0700 | [diff] [blame] | 56 | void vxlan_get_rx_port(struct net_device *netdev); |
| Joseph Gasparakis | e6cd988 | 2013-10-24 06:27:10 +0000 | [diff] [blame] | 57 | #else |
| 58 | static inline void vxlan_get_rx_port(struct net_device *netdev) |
| 59 | { |
| 60 | } |
| 61 | #endif |
| Pravin B Shelar | 012a572 | 2013-08-19 11:23:07 -0700 | [diff] [blame] | 62 | #endif |