projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 012a5729 PS |
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 | ||
| 11bf7828 JS |
11 | /* VXLAN protocol header */ |
| 12 | struct vxlanhdr { | |
| 13 | __be32 vx_flags; | |
| 14 | __be32 vx_vni; | |
| 15 | }; | |
| 16 | ||
| 012a5729 PS |
17 | struct vxlan_sock; |
| 18 | typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key); | |
| 19 | ||
| 20 | /* per UDP socket information */ | |
| 21 | struct vxlan_sock { | |
| 22 | struct hlist_node hlist; | |
| 23 | vxlan_rcv_t *rcv; | |
| 24 | void *data; | |
| 25 | struct work_struct del_work; | |
| 26 | struct socket *sock; | |
| 27 | struct rcu_head rcu; | |
| 28 | struct hlist_head vni_list[VNI_HASH_SIZE]; | |
| 29 | atomic_t refcnt; | |
| dc01e7d3 | 30 | struct udp_offload udp_offloads; |
| 012a5729 PS |
31 | }; |
| 32 | ||
| 359a0ea9 TH |
33 | #define VXLAN_F_LEARN 0x01 |
| 34 | #define VXLAN_F_PROXY 0x02 | |
| 35 | #define VXLAN_F_RSC 0x04 | |
| 36 | #define VXLAN_F_L2MISS 0x08 | |
| 37 | #define VXLAN_F_L3MISS 0x10 | |
| 38 | #define VXLAN_F_IPV6 0x20 | |
| 39 | #define VXLAN_F_UDP_CSUM 0x40 | |
| 40 | #define VXLAN_F_UDP_ZERO_CSUM6_TX 0x80 | |
| 41 | #define VXLAN_F_UDP_ZERO_CSUM6_RX 0x100 | |
| 42 | ||
| 012a5729 PS |
43 | struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port, |
| 44 | vxlan_rcv_t *rcv, void *data, | |
| 359a0ea9 | 45 | bool no_share, u32 flags); |
| 012a5729 PS |
46 | |
| 47 | void vxlan_sock_release(struct vxlan_sock *vs); | |
| 49560532 | 48 | |
| 11796187 | 49 | int vxlan_xmit_skb(struct vxlan_sock *vs, |
| 49560532 PS |
50 | struct rtable *rt, struct sk_buff *skb, |
| 51 | __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df, | |
| f01ec1c0 | 52 | __be16 src_port, __be16 dst_port, __be32 vni, bool xnet); |
| 49560532 | 53 | |
| 11bf7828 JS |
54 | static inline bool vxlan_gso_check(struct sk_buff *skb) |
| 55 | { | |
| 56 | if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) && | |
| 57 | (skb->inner_protocol_type != ENCAP_TYPE_ETHER || | |
| 58 | skb->inner_protocol != htons(ETH_P_TEB) || | |
| 59 | (skb_inner_mac_header(skb) - skb_transport_header(skb) != | |
| 60 | sizeof(struct udphdr) + sizeof(struct vxlanhdr)))) | |
| 61 | return false; | |
| 62 | ||
| 63 | return true; | |
| 64 | } | |
| 23e62de3 | 65 | |
| e6cd988c JG |
66 | /* IP header + UDP + VXLAN + Ethernet header */ |
| 67 | #define VXLAN_HEADROOM (20 + 8 + 8 + 14) | |
| 68 | /* IPv6 header + UDP + VXLAN + Ethernet header */ | |
| 69 | #define VXLAN6_HEADROOM (40 + 8 + 8 + 14) | |
| 70 | ||
| 71 | #if IS_ENABLED(CONFIG_VXLAN) | |
| 53cf5275 | 72 | void vxlan_get_rx_port(struct net_device *netdev); |
| e6cd988c JG |
73 | #else |
| 74 | static inline void vxlan_get_rx_port(struct net_device *netdev) | |
| 75 | { | |
| 76 | } | |
| 77 | #endif | |
| 012a5729 | 78 | #endif |