vxlan: Inline vxlan_gso_check().
Suggested-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Joe Stringer <joestringer@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -67,12 +67,6 @@
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#define VXLAN_FLAGS 0x08000000 /* struct vxlanhdr.vx_flags required value. */
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/* VXLAN protocol header */
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struct vxlanhdr {
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__be32 vx_flags;
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__be32 vx_vni;
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};
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/* UDP port for VXLAN traffic.
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* The IANA assigned port is 4789, but the Linux default is 8472
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* for compatibility with early adopters.
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@ -1571,19 +1565,6 @@ static bool route_shortcircuit(struct net_device *dev, struct sk_buff *skb)
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return false;
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}
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bool vxlan_gso_check(struct sk_buff *skb)
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{
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if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) &&
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(skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
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skb->inner_protocol != htons(ETH_P_TEB) ||
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(skb_inner_mac_header(skb) - skb_transport_header(skb) !=
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sizeof(struct udphdr) + sizeof(struct vxlanhdr))))
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return false;
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return true;
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}
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EXPORT_SYMBOL_GPL(vxlan_gso_check);
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#if IS_ENABLED(CONFIG_IPV6)
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static int vxlan6_xmit_skb(struct vxlan_sock *vs,
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struct dst_entry *dst, struct sk_buff *skb,
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@ -8,6 +8,12 @@
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#define VNI_HASH_BITS 10
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#define VNI_HASH_SIZE (1<<VNI_HASH_BITS)
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/* VXLAN protocol header */
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struct vxlanhdr {
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__be32 vx_flags;
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__be32 vx_vni;
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};
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struct vxlan_sock;
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typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key);
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@ -45,7 +51,17 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
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__be16 src_port, __be16 dst_port, __be32 vni, bool xnet);
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bool vxlan_gso_check(struct sk_buff *skb);
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static inline bool vxlan_gso_check(struct sk_buff *skb)
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{
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if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) &&
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(skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
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skb->inner_protocol != htons(ETH_P_TEB) ||
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(skb_inner_mac_header(skb) - skb_transport_header(skb) !=
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sizeof(struct udphdr) + sizeof(struct vxlanhdr))))
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return false;
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return true;
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}
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/* IP header + UDP + VXLAN + Ethernet header */
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#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
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