net/ipv6/ila/ila.h

   1 /*
   2  * Copyright (c) 2015 Tom Herbert <tom@herbertland.com>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of
   7  * the License, or (at your option) any later version.
   8  *
   9  */
  10
  11 #ifndef __ILA_H
  12 #define __ILA_H
  13
  14 #include <linux/errno.h>
  15 #include <linux/ip.h>
  16 #include <linux/kernel.h>
  17 #include <linux/module.h>
  18 #include <linux/socket.h>
  19 #include <linux/skbuff.h>
  20 #include <linux/types.h>
  21 #include <net/checksum.h>
  22 #include <net/ip.h>
  23 #include <net/protocol.h>
  24 #include <uapi/linux/ila.h>
  25
  26 struct ila_params {
  27         __be64 locator;
  28         __be64 locator_match;
  29         __wsum csum_diff;
  30 };
  31
  32 static inline __wsum compute_csum_diff8(const __be32 *from, const __be32 *to)
  33 {
  34         __be32 diff[] = {
  35                 ~from[0], ~from[1], to[0], to[1],
  36         };
  37
  38         return csum_partial(diff, sizeof(diff), 0);
  39 }
  40
  41 void update_ipv6_locator(struct sk_buff *skb, struct ila_params *p);
  42
  43 int ila_lwt_init(void);
  44 void ila_lwt_fini(void);
  45 int ila_xlat_init(void);
  46 void ila_xlat_fini(void);
  47
  48 #endif /* __ILA_H */