#ifndef COMPAT_H
#define COMPAT_H 1
+#include <linux/in.h>
+#include <linux/in_route.h>
#include <linux/netlink.h>
-
-#ifndef HAVE_NLA_NUL_STRING
-static inline int CHECK_NUL_STRING(struct nlattr *attr, int maxlen)
-{
- char *s;
- int len;
- if (!attr)
- return 0;
-
- len = nla_len(attr);
- if (len >= maxlen)
- return -EINVAL;
-
- s = nla_data(attr);
- if (s[len - 1] != '\0')
- return -EINVAL;
-
- return 0;
-}
-#else
-static inline int CHECK_NUL_STRING(struct nlattr *attr, int maxlen)
-{
- return 0;
-}
-#endif /* !HAVE_NLA_NUL_STRING */
+#include <net/route.h>
+#include <net/xfrm.h>
static inline void skb_clear_rxhash(struct sk_buff *skb)
{
#endif
}
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
-#define GENL_SOCK(net) (genl_sock)
-#define SET_NETNSOK
-#else
-#define GENL_SOCK(net) ((net)->genl_sock)
-#define SET_NETNSOK .netnsok = true,
-#endif
-
#ifdef HAVE_PARALLEL_OPS
#define SET_PARALLEL_OPS .parallel_ops = true,
#else
#define SET_PARALLEL_OPS
#endif
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-#ifdef CONFIG_NETFILTER
-static inline u32 skb_get_mark(struct sk_buff *skb)
-{
- return skb->nfmark;
-}
-
-static inline void skb_set_mark(struct sk_buff *skb, u32 mark)
-{
- skb->nfmark = mark;
-}
-#else /* CONFIG_NETFILTER */
-static inline u32 skb_get_mark(struct sk_buff *skb)
-{
- return 0;
-}
-
-static inline void skb_set_mark(struct sk_buff *skb, u32 mark)
-{
-}
-#endif
-#else /* before 2.6.20 */
-static inline u32 skb_get_mark(struct sk_buff *skb)
-{
- return skb->mark;
-}
-
-static inline void skb_set_mark(struct sk_buff *skb, u32 mark)
-{
- skb->mark = mark;
-}
-#endif /* after 2.6.20 */
-
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
#define rt_dst(rt) (rt->dst)
#else
#define inet_sport(sk) (inet_sk(sk)->inet_sport)
#endif
+static inline struct rtable *find_route(struct net *net,
+ __be32 *saddr, __be32 daddr,
+ u8 ipproto, u8 tos, u32 skb_mark)
+{
+ struct rtable *rt;
+ /* Tunnel configuration keeps DSCP part of TOS bits, But Linux
+ * router expect RT_TOS bits only. */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)
+ struct flowi fl = { .nl_u = { .ip4_u = {
+ .daddr = daddr,
+ .saddr = *saddr,
+ .tos = RT_TOS(tos) } },
+ .mark = skb_mark,
+ .proto = ipproto };
+
+ if (unlikely(ip_route_output_key(net, &rt, &fl)))
+ return ERR_PTR(-EADDRNOTAVAIL);
+ *saddr = fl.nl_u.ip4_u.saddr;
+ return rt;
+#else
+ struct flowi4 fl = { .daddr = daddr,
+ .saddr = *saddr,
+ .flowi4_tos = RT_TOS(tos),
+ .flowi4_mark = skb_mark,
+ .flowi4_proto = ipproto };
+
+ rt = ip_route_output_key(net, &fl);
+ *saddr = fl.saddr;
+ return rt;
+#endif
+}
#endif /* compat.h */