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include/net/dn_fib.h
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#ifndef _NET_DN_FIB_H #define _NET_DN_FIB_H /* WARNING: The ordering of these elements must match ordering * of RTA_* rtnetlink attribute numbers. */ |
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struct dn_kern_rta { |
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void *rta_dst; void *rta_src; int *rta_iif; int *rta_oif; void *rta_gw; u32 *rta_priority; void *rta_prefsrc; struct rtattr *rta_mx; struct rtattr *rta_mp; unsigned char *rta_protoinfo; u32 *rta_flow; struct rta_cacheinfo *rta_ci; struct rta_session *rta_sess; }; struct dn_fib_res { |
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struct fib_rule *r; |
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struct dn_fib_info *fi; unsigned char prefixlen; unsigned char nh_sel; unsigned char type; unsigned char scope; }; struct dn_fib_nh { struct net_device *nh_dev; unsigned nh_flags; unsigned char nh_scope; int nh_weight; int nh_power; int nh_oif; |
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__le16 nh_gw; |
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}; struct dn_fib_info { struct dn_fib_info *fib_next; struct dn_fib_info *fib_prev; int fib_treeref; atomic_t fib_clntref; int fib_dead; unsigned fib_flags; int fib_protocol; |
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__le16 fib_prefsrc; |
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__u32 fib_priority; __u32 fib_metrics[RTAX_MAX]; |
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int fib_nhs; int fib_power; struct dn_fib_nh fib_nh[0]; #define dn_fib_dev fib_nh[0].nh_dev }; #define DN_FIB_RES_RESET(res) ((res).nh_sel = 0) #define DN_FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel]) #define DN_FIB_RES_PREFSRC(res) ((res).fi->fib_prefsrc ? : __dn_fib_res_prefsrc(&res)) #define DN_FIB_RES_GW(res) (DN_FIB_RES_NH(res).nh_gw) #define DN_FIB_RES_DEV(res) (DN_FIB_RES_NH(res).nh_dev) #define DN_FIB_RES_OIF(res) (DN_FIB_RES_NH(res).nh_oif) typedef struct { |
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__le16 datum; |
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} dn_fib_key_t; typedef struct { |
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__le16 datum; |
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} dn_fib_hash_t; typedef struct { |
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__u16 datum; |
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} dn_fib_idx_t; struct dn_fib_node { struct dn_fib_node *fn_next; struct dn_fib_info *fn_info; #define DN_FIB_INFO(f) ((f)->fn_info) dn_fib_key_t fn_key; u8 fn_type; u8 fn_scope; u8 fn_state; }; struct dn_fib_table { |
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struct hlist_node hlist; |
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u32 n; |
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int (*insert)(struct dn_fib_table *t, struct rtmsg *r, struct dn_kern_rta *rta, struct nlmsghdr *n, struct netlink_skb_parms *req); int (*delete)(struct dn_fib_table *t, struct rtmsg *r, struct dn_kern_rta *rta, struct nlmsghdr *n, struct netlink_skb_parms *req); |
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int (*lookup)(struct dn_fib_table *t, const struct flowidn *fld, |
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struct dn_fib_res *res); int (*flush)(struct dn_fib_table *t); int (*dump)(struct dn_fib_table *t, struct sk_buff *skb, struct netlink_callback *cb); unsigned char data[0]; }; #ifdef CONFIG_DECNET_ROUTER /* * dn_fib.c */ extern void dn_fib_init(void); extern void dn_fib_cleanup(void); extern int dn_fib_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); extern struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct dn_kern_rta *rta, const struct nlmsghdr *nlh, int *errp); extern int dn_fib_semantic_match(int type, struct dn_fib_info *fi, |
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const struct flowidn *fld, |
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struct dn_fib_res *res); extern void dn_fib_release_info(struct dn_fib_info *fi); |
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extern __le16 dn_fib_get_attr16(struct rtattr *attr, int attrlen, int type); |
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extern void dn_fib_flush(void); |
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extern void dn_fib_select_multipath(const struct flowidn *fld, |
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struct dn_fib_res *res); |
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/* * dn_tables.c */ |
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extern struct dn_fib_table *dn_fib_get_table(u32 n, int creat); |
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extern struct dn_fib_table *dn_fib_empty_table(void); extern void dn_fib_table_init(void); extern void dn_fib_table_cleanup(void); /* * dn_rules.c */ extern void dn_fib_rules_init(void); extern void dn_fib_rules_cleanup(void); |
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extern unsigned dnet_addr_type(__le16 addr); |
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extern int dn_fib_lookup(struct flowidn *fld, struct dn_fib_res *res); |
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extern int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb); |
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extern void dn_fib_free_info(struct dn_fib_info *fi); static inline void dn_fib_info_put(struct dn_fib_info *fi) { if (atomic_dec_and_test(&fi->fib_clntref)) dn_fib_free_info(fi); } static inline void dn_fib_res_put(struct dn_fib_res *res) { if (res->fi) dn_fib_info_put(res->fi); if (res->r) |
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fib_rule_put(res->r); |
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} |
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#else /* Endnode */ #define dn_fib_init() do { } while(0) #define dn_fib_cleanup() do { } while(0) #define dn_fib_lookup(fl, res) (-ESRCH) #define dn_fib_info_put(fi) do { } while(0) #define dn_fib_select_multipath(fl, res) do { } while(0) #define dn_fib_rules_policy(saddr,res,flags) (0) #define dn_fib_res_put(res) do { } while(0) #endif /* CONFIG_DECNET_ROUTER */ |
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static inline __le16 dnet_make_mask(int n) |
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{ |
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if (n) return cpu_to_le16(~((1 << (16 - n)) - 1)); return cpu_to_le16(0); |
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} #endif /* _NET_DN_FIB_H */ |