#ifndef __NET_VXLAN_H #define __NET_VXLAN_H 1 #include <linux/skbuff.h> #include <linux/netdevice.h> #include <linux/udp.h> #define VNI_HASH_BITS 10 #define VNI_HASH_SIZE (1<<VNI_HASH_BITS) struct vxlan_sock; typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key); /* per UDP socket information */ struct vxlan_sock { struct hlist_node hlist; vxlan_rcv_t *rcv; void *data; struct work_struct del_work; struct socket *sock; struct rcu_head rcu; struct hlist_head vni_list[VNI_HASH_SIZE]; atomic_t refcnt; struct udp_offload udp_offloads; }; #define VXLAN_F_LEARN 0x01 #define VXLAN_F_PROXY 0x02 #define VXLAN_F_RSC 0x04 #define VXLAN_F_L2MISS 0x08 #define VXLAN_F_L3MISS 0x10 #define VXLAN_F_IPV6 0x20 #define VXLAN_F_UDP_CSUM 0x40 #define VXLAN_F_UDP_ZERO_CSUM6_TX 0x80 #define VXLAN_F_UDP_ZERO_CSUM6_RX 0x100 struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port, vxlan_rcv_t *rcv, void *data, bool no_share, u32 flags); void vxlan_sock_release(struct vxlan_sock *vs); int vxlan_xmit_skb(struct vxlan_sock *vs, struct rtable *rt, struct sk_buff *skb, __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df, __be16 src_port, __be16 dst_port, __be32 vni, bool xnet); /* IP header + UDP + VXLAN + Ethernet header */ #define VXLAN_HEADROOM (20 + 8 + 8 + 14) /* IPv6 header + UDP + VXLAN + Ethernet header */ #define VXLAN6_HEADROOM (40 + 8 + 8 + 14) #if IS_ENABLED(CONFIG_VXLAN) void vxlan_get_rx_port(struct net_device *netdev); #else static inline void vxlan_get_rx_port(struct net_device *netdev) { } #endif #endif