#ifndef _NET_DST_H
#define _NET_DST_H
+#include <net/dst_ops.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <linux/rcupdate.h>
};
};
-
-struct dst_ops
-{
- unsigned short family;
- __be16 protocol;
- unsigned gc_thresh;
-
- int (*gc)(struct dst_ops *ops);
- struct dst_entry * (*check)(struct dst_entry *, __u32 cookie);
- void (*destroy)(struct dst_entry *);
- void (*ifdown)(struct dst_entry *,
- struct net_device *dev, int how);
- struct dst_entry * (*negative_advice)(struct dst_entry *);
- void (*link_failure)(struct sk_buff *);
- void (*update_pmtu)(struct dst_entry *dst, u32 mtu);
- int (*local_out)(struct sk_buff *skb);
-
- atomic_t entries;
- struct kmem_cache *kmem_cachep;
- struct net *dst_net;
-};
-
#ifdef __KERNEL__
static inline u32
}
extern void dst_release(struct dst_entry *dst);
+static inline void skb_dst_drop(struct sk_buff *skb)
+{
+ if (skb->_skb_dst)
+ dst_release(skb_dst(skb));
+ skb->_skb_dst = 0UL;
+}
/* Children define the path of the packet through the
* Linux networking. Thus, destinations are stackable.
static inline void dst_link_failure(struct sk_buff *skb)
{
- struct dst_entry * dst = skb->dst;
+ struct dst_entry *dst = skb_dst(skb);
if (dst && dst->ops && dst->ops->link_failure)
dst->ops->link_failure(skb);
}
/* Output packet to network from transport. */
static inline int dst_output(struct sk_buff *skb)
{
- return skb->dst->output(skb);
+ return skb_dst(skb)->output(skb);
}
/* Input packet from network to transport. */
static inline int dst_input(struct sk_buff *skb)
{
- return skb->dst->input(skb);
+ return skb_dst(skb)->input(skb);
}
static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie)
struct flowi;
#ifndef CONFIG_XFRM
-static inline int xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
- struct sock *sk, int flags)
+static inline int xfrm_lookup(struct net *net, struct dst_entry **dst_p,
+ struct flowi *fl, struct sock *sk, int flags)
{
return 0;
}
-static inline int __xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
- struct sock *sk, int flags)
+static inline int __xfrm_lookup(struct net *net, struct dst_entry **dst_p,
+ struct flowi *fl, struct sock *sk, int flags)
{
return 0;
}
#else
-extern int xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
- struct sock *sk, int flags);
-extern int __xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
- struct sock *sk, int flags);
+extern int xfrm_lookup(struct net *net, struct dst_entry **dst_p,
+ struct flowi *fl, struct sock *sk, int flags);
+extern int __xfrm_lookup(struct net *net, struct dst_entry **dst_p,
+ struct flowi *fl, struct sock *sk, int flags);
#endif
#endif