dst.h (75ce7ceaa1221858c0163e75d19eb8a423a212ff) dst.h (1e19e02ca0c5e33ea73a25127dbe6c3b8fcaac4b)
1/*
2 * net/dst.h Protocol independent destination cache definitions.
3 *
4 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
5 *
6 */
7
8#ifndef _NET_DST_H

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32 * is zero, it can be destroyed immediately, otherwise it is added
33 * to gc list and garbage collector periodically checks the refcnt.
34 */
35
36struct sk_buff;
37
38struct dst_entry
39{
1/*
2 * net/dst.h Protocol independent destination cache definitions.
3 *
4 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
5 *
6 */
7
8#ifndef _NET_DST_H

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32 * is zero, it can be destroyed immediately, otherwise it is added
33 * to gc list and garbage collector periodically checks the refcnt.
34 */
35
36struct sk_buff;
37
38struct dst_entry
39{
40 union {
41 struct dst_entry *next;
42 struct rtable *rt_next;
43 struct rt6_info *rt6_next;
44 struct dn_route *dn_next;
45 };
46 atomic_t __refcnt; /* client references */
47 int __use;
40 struct rcu_head rcu_head;
48 struct dst_entry *child;
49 struct net_device *dev;
50 short error;
51 short obsolete;
52 int flags;
53#define DST_HOST 1
54#define DST_NOXFRM 2
55#define DST_NOPOLICY 4
56#define DST_NOHASH 8
57#define DST_BALANCED 0x10
41 struct dst_entry *child;
42 struct net_device *dev;
43 short error;
44 short obsolete;
45 int flags;
46#define DST_HOST 1
47#define DST_NOXFRM 2
48#define DST_NOPOLICY 4
49#define DST_NOHASH 8
50#define DST_BALANCED 0x10
58 unsigned long lastuse;
59 unsigned long expires;
60
61 unsigned short header_len; /* more space at head required */
62 unsigned short nfheader_len; /* more non-fragment space at head required */
63 unsigned short trailer_len; /* space to reserve at tail */
64
65 u32 metrics[RTAX_MAX];
66 struct dst_entry *path;

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75 int (*input)(struct sk_buff*);
76 int (*output)(struct sk_buff*);
77
78#ifdef CONFIG_NET_CLS_ROUTE
79 __u32 tclassid;
80#endif
81
82 struct dst_ops *ops;
51 unsigned long expires;
52
53 unsigned short header_len; /* more space at head required */
54 unsigned short nfheader_len; /* more non-fragment space at head required */
55 unsigned short trailer_len; /* space to reserve at tail */
56
57 u32 metrics[RTAX_MAX];
58 struct dst_entry *path;

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67 int (*input)(struct sk_buff*);
68 int (*output)(struct sk_buff*);
69
70#ifdef CONFIG_NET_CLS_ROUTE
71 __u32 tclassid;
72#endif
73
74 struct dst_ops *ops;
83 struct rcu_head rcu_head;
84
75
76 unsigned long lastuse;
77 atomic_t __refcnt; /* client references */
78 int __use;
79 union {
80 struct dst_entry *next;
81 struct rtable *rt_next;
82 struct rt6_info *rt6_next;
83 struct dn_route *dn_next;
84 };
85 char info[0];
86};
87
88
89struct dst_ops
90{
91 unsigned short family;
92 __be16 protocol;

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86};
87
88
89struct dst_ops
90{
91 unsigned short family;
92 __be16 protocol;

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