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Diffstat (limited to 'libdde-linux26/libdde_linux26/contrib/include/net/dst.h')
-rw-r--r--libdde-linux26/libdde_linux26/contrib/include/net/dst.h312
1 files changed, 0 insertions, 312 deletions
diff --git a/libdde-linux26/libdde_linux26/contrib/include/net/dst.h b/libdde-linux26/libdde_linux26/contrib/include/net/dst.h
deleted file mode 100644
index 6be3b082..00000000
--- a/libdde-linux26/libdde_linux26/contrib/include/net/dst.h
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * net/dst.h Protocol independent destination cache definitions.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- */
-
-#ifndef _NET_DST_H
-#define _NET_DST_H
-
-#include <linux/netdevice.h>
-#include <linux/rtnetlink.h>
-#include <linux/rcupdate.h>
-#include <linux/jiffies.h>
-#include <net/neighbour.h>
-#include <asm/processor.h>
-
-/*
- * 0 - no debugging messages
- * 1 - rare events and bugs (default)
- * 2 - trace mode.
- */
-#define RT_CACHE_DEBUG 0
-
-#define DST_GC_MIN (HZ/10)
-#define DST_GC_INC (HZ/2)
-#define DST_GC_MAX (120*HZ)
-
-/* Each dst_entry has reference count and sits in some parent list(s).
- * When it is removed from parent list, it is "freed" (dst_free).
- * After this it enters dead state (dst->obsolete > 0) and if its refcnt
- * is zero, it can be destroyed immediately, otherwise it is added
- * to gc list and garbage collector periodically checks the refcnt.
- */
-
-struct sk_buff;
-
-struct dst_entry
-{
- struct rcu_head rcu_head;
- struct dst_entry *child;
- struct net_device *dev;
- short error;
- short obsolete;
- int flags;
-#define DST_HOST 1
-#define DST_NOXFRM 2
-#define DST_NOPOLICY 4
-#define DST_NOHASH 8
- unsigned long expires;
-
- unsigned short header_len; /* more space at head required */
- unsigned short trailer_len; /* space to reserve at tail */
-
- unsigned int rate_tokens;
- unsigned long rate_last; /* rate limiting for ICMP */
-
- struct dst_entry *path;
-
- struct neighbour *neighbour;
- struct hh_cache *hh;
-#ifdef CONFIG_XFRM
- struct xfrm_state *xfrm;
-#else
- void *__pad1;
-#endif
- int (*input)(struct sk_buff*);
- int (*output)(struct sk_buff*);
-
- struct dst_ops *ops;
-
- u32 metrics[RTAX_MAX];
-
-#ifdef CONFIG_NET_CLS_ROUTE
- __u32 tclassid;
-#else
- __u32 __pad2;
-#endif
-
-
- /*
- * Align __refcnt to a 64 bytes alignment
- * (L1_CACHE_SIZE would be too much)
- */
-#ifdef CONFIG_64BIT
- long __pad_to_align_refcnt[2];
-#else
- long __pad_to_align_refcnt[1];
-#endif
- /*
- * __refcnt wants to be on a different cache line from
- * input/output/ops or performance tanks badly
- */
- atomic_t __refcnt; /* client references */
- int __use;
- unsigned long lastuse;
- union {
- struct dst_entry *next;
- struct rtable *rt_next;
- struct rt6_info *rt6_next;
- struct dn_route *dn_next;
- };
-};
-
-
-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
-dst_metric(const struct dst_entry *dst, int metric)
-{
- return dst->metrics[metric-1];
-}
-
-static inline u32 dst_mtu(const struct dst_entry *dst)
-{
- u32 mtu = dst_metric(dst, RTAX_MTU);
- /*
- * Alexey put it here, so ask him about it :)
- */
- barrier();
- return mtu;
-}
-
-/* RTT metrics are stored in milliseconds for user ABI, but used as jiffies */
-static inline unsigned long dst_metric_rtt(const struct dst_entry *dst, int metric)
-{
- return msecs_to_jiffies(dst_metric(dst, metric));
-}
-
-static inline void set_dst_metric_rtt(struct dst_entry *dst, int metric,
- unsigned long rtt)
-{
- dst->metrics[metric-1] = jiffies_to_msecs(rtt);
-}
-
-static inline u32
-dst_allfrag(const struct dst_entry *dst)
-{
- int ret = dst_metric(dst, RTAX_FEATURES) & RTAX_FEATURE_ALLFRAG;
- /* Yes, _exactly_. This is paranoia. */
- barrier();
- return ret;
-}
-
-static inline int
-dst_metric_locked(struct dst_entry *dst, int metric)
-{
- return dst_metric(dst, RTAX_LOCK) & (1<<metric);
-}
-
-static inline void dst_hold(struct dst_entry * dst)
-{
- /*
- * If your kernel compilation stops here, please check
- * __pad_to_align_refcnt declaration in struct dst_entry
- */
- BUILD_BUG_ON(offsetof(struct dst_entry, __refcnt) & 63);
- atomic_inc(&dst->__refcnt);
-}
-
-static inline void dst_use(struct dst_entry *dst, unsigned long time)
-{
- dst_hold(dst);
- dst->__use++;
- dst->lastuse = time;
-}
-
-static inline
-struct dst_entry * dst_clone(struct dst_entry * dst)
-{
- if (dst)
- atomic_inc(&dst->__refcnt);
- return dst;
-}
-
-extern void dst_release(struct dst_entry *dst);
-
-/* Children define the path of the packet through the
- * Linux networking. Thus, destinations are stackable.
- */
-
-static inline struct dst_entry *dst_pop(struct dst_entry *dst)
-{
- struct dst_entry *child = dst_clone(dst->child);
-
- dst_release(dst);
- return child;
-}
-
-extern int dst_discard(struct sk_buff *skb);
-extern void * dst_alloc(struct dst_ops * ops);
-extern void __dst_free(struct dst_entry * dst);
-extern struct dst_entry *dst_destroy(struct dst_entry * dst);
-
-static inline void dst_free(struct dst_entry * dst)
-{
- if (dst->obsolete > 1)
- return;
- if (!atomic_read(&dst->__refcnt)) {
- dst = dst_destroy(dst);
- if (!dst)
- return;
- }
- __dst_free(dst);
-}
-
-static inline void dst_rcu_free(struct rcu_head *head)
-{
- struct dst_entry *dst = container_of(head, struct dst_entry, rcu_head);
- dst_free(dst);
-}
-
-static inline void dst_confirm(struct dst_entry *dst)
-{
- if (dst)
- neigh_confirm(dst->neighbour);
-}
-
-static inline void dst_negative_advice(struct dst_entry **dst_p)
-{
- struct dst_entry * dst = *dst_p;
- if (dst && dst->ops->negative_advice)
- *dst_p = dst->ops->negative_advice(dst);
-}
-
-static inline void dst_link_failure(struct sk_buff *skb)
-{
- struct dst_entry * dst = skb->dst;
- if (dst && dst->ops && dst->ops->link_failure)
- dst->ops->link_failure(skb);
-}
-
-static inline void dst_set_expires(struct dst_entry *dst, int timeout)
-{
- unsigned long expires = jiffies + timeout;
-
- if (expires == 0)
- expires = 1;
-
- if (dst->expires == 0 || time_before(expires, dst->expires))
- dst->expires = expires;
-}
-
-/* Output packet to network from transport. */
-static inline int dst_output(struct sk_buff *skb)
-{
- return skb->dst->output(skb);
-}
-
-/* Input packet from network to transport. */
-static inline int dst_input(struct sk_buff *skb)
-{
- return skb->dst->input(skb);
-}
-
-static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie)
-{
- if (dst->obsolete)
- dst = dst->ops->check(dst, cookie);
- return dst;
-}
-
-extern void dst_init(void);
-
-/* Flags for xfrm_lookup flags argument. */
-enum {
- XFRM_LOOKUP_WAIT = 1 << 0,
- XFRM_LOOKUP_ICMP = 1 << 1,
-};
-
-struct flowi;
-#ifndef CONFIG_XFRM
-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 net *net, struct dst_entry **dst_p,
- struct flowi *fl, struct sock *sk, int flags)
-{
- return 0;
-}
-#else
-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
-
-#endif /* _NET_DST_H */
generated by cgit v1.2.3 (git 2.46.0) at 2025-05-29 16:11:16 +0000