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| author | Chris Zankel <chris@zankel.net> | 2014-12-16 07:09:06 +0300 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2014-12-16 07:09:06 +0300 |
| commit | 865566ed33f08637c3486b4d301e96a9064ad2eb (patch) | |
| tree | dfa26622c8feaa57153d87d207133f01aff5858b /include/net/vxlan.h | |
| parent | c0d7aa07504a8f4abd7b02b9144c4a92b7565f45 (diff) | |
| parent | b2776bf7149bddd1f4161f14f79520f17fc1d71d (diff) | |
| download | linux-865566ed33f08637c3486b4d301e96a9064ad2eb.tar.xz | |
Merge tag 'v3.18' into for_next
Linux 3.18
Diffstat (limited to 'include/net/vxlan.h')
| -rw-r--r-- | include/net/vxlan.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h index d5f59f3fc35d..57cccd0052e5 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -8,6 +8,12 @@ #define VNI_HASH_BITS 10 #define VNI_HASH_SIZE (1<<VNI_HASH_BITS) +/* VXLAN protocol header */ +struct vxlanhdr { + __be32 vx_flags; + __be32 vx_vni; +}; + struct vxlan_sock; typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key); @@ -45,6 +51,18 @@ int vxlan_xmit_skb(struct vxlan_sock *vs, __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df, __be16 src_port, __be16 dst_port, __be32 vni, bool xnet); +static inline bool vxlan_gso_check(struct sk_buff *skb) +{ + if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) && + (skb->inner_protocol_type != ENCAP_TYPE_ETHER || + skb->inner_protocol != htons(ETH_P_TEB) || + (skb_inner_mac_header(skb) - skb_transport_header(skb) != + sizeof(struct udphdr) + sizeof(struct vxlanhdr)))) + return false; + + return true; +} + /* IP header + UDP + VXLAN + Ethernet header */ #define VXLAN_HEADROOM (20 + 8 + 8 + 14) /* IPv6 header + UDP + VXLAN + Ethernet header */ |