datapath/linux/compat/include/net/dst_metadata.h

   1 #ifndef __NET_DST_METADATA_WRAPPER_H
   2 #define __NET_DST_METADATA_WRAPPER_H 1
   3
   4 #ifdef HAVE_METADATA_DST
   5 #include_next <net/dst_metadata.h>
   6 #else
   7 #include <linux/skbuff.h>
   8 #include <net/ip_tunnels.h>
   9 #include <net/dst.h>
  10
  11 struct metadata_dst {
  12         unsigned long dst;
  13         union {
  14                 struct ip_tunnel_info   tun_info;
  15         } u;
  16 };
  17
  18 static inline struct metadata_dst *metadata_dst_alloc(u8 optslen, gfp_t flags)
  19 {
  20         struct metadata_dst *md_dst;
  21
  22         md_dst = kmalloc(sizeof(*md_dst) + optslen, flags);
  23         if (!md_dst)
  24                 return NULL;
  25
  26         return md_dst;
  27 }
  28 #define skb_tunnel_info ovs_skb_tunnel_info
  29 #endif
  30 static inline void ovs_ip_tun_rx_dst(struct ip_tunnel_info *tun_info,
  31                                  struct sk_buff *skb, __be16 flags,
  32                                  __be64 tunnel_id, int md_size)
  33 {
  34         const struct iphdr *iph = ip_hdr(skb);
  35
  36         ip_tunnel_key_init(&tun_info->key,
  37                            iph->saddr, iph->daddr, iph->tos, iph->ttl,
  38                            0, 0, tunnel_id, flags);
  39         tun_info->mode = 0;
  40 }
  41
  42 void ovs_ip_tunnel_rcv(struct net_device *dev, struct sk_buff *skb,
  43                       struct metadata_dst *tun_dst);
  44 #endif /* __NET_DST_METADATA_WRAPPER_H */