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/*
* Quicktun tunnel driver - compatiblity definitions
* Copyright (C) 2011 Matthias Schiffer <mschiffer@universe-factory.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __QUICKTUN_COMPAT_H
#define __QUICKTUN_COMPAT_H
#include <linux/version.h>
#include <net/inet_sock.h>
#include <net/route.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39)
static inline struct rtable *ip_route_output_ports(struct net *net, struct sock *sk,
__be32 daddr, __be32 saddr,
__be16 dport, __be16 sport,
__u8 proto, __u8 tos, int oif)
{
struct rtable *rt;
struct flowi fl = {
.nl_u = {
.ip4_u = {
.saddr = saddr,
.daddr = daddr,
.tos = tos,
}
},
.oif = oif,
.proto = proto
};
if (ip_route_output_key(net, &rt, &fl))
return NULL;
return rt;
}
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 37)
static inline void __skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev)
{
skb->dev = dev;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
skb->rxhash = 0;
#endif
skb_set_queue_mapping(skb, 0);
skb_dst_drop(skb);
nf_reset(skb);
}
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 36)
#define RTABLE_DST(rtable) (&(rtable)->u.dst)
#else
#define RTABLE_DST(rtable) (&(rtable)->dst)
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 34)
#define rcu_dereference_protected(p, c) rcu_dereference(p)
#endif
#endif /* __QUICKTUN_COMPAT_H */
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