#ifndef _NET_DN_FIB_H#define _NET_DN_FIB_H /* WARNING: The ordering of these elements must match ordering *          of RTA_* rtnetlink attribute numbers. */struct dn_kern_rta{        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 {	struct dn_fib_rule *r;	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;	__le16			nh_gw;}; 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;	__le16			fib_prefsrc;	__u32			fib_priority;	__u32			fib_metrics[RTAX_MAX];#define dn_fib_mtu  fib_metrics[RTAX_MTU-1]#define dn_fib_window fib_metrics[RTAX_WINDOW-1]#define dn_fib_rtt fib_metrics[RTAX_RTT-1]#define dn_fib_advmss fib_metrics[RTAX_ADVMSS-1]	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 {	__le16	datum;} dn_fib_key_t; typedef struct {	__le16	datum;} dn_fib_hash_t; typedef struct {	__u16	datum;} 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 {	int n; 	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);	int (*lookup)(struct dn_fib_table *t, const struct flowi *fl,			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, 			const struct flowi *fl,			struct dn_fib_res *res);extern void dn_fib_release_info(struct dn_fib_info *fi);extern __le16 dn_fib_get_attr16(struct rtattr *attr, int attrlen, int type);extern void dn_fib_flush(void);extern void dn_fib_select_multipath(const struct flowi *fl,					struct dn_fib_res *res);extern int dn_fib_sync_down(__le16 local, struct net_device *dev,				int force);extern int dn_fib_sync_up(struct net_device *dev); /* * dn_tables.c */extern struct dn_fib_table *dn_fib_get_table(int n, int creat);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);extern void dn_fib_rule_put(struct dn_fib_rule *);extern __le16 dn_fib_rules_policy(__le16 saddr, struct dn_fib_res *res, unsigned *flags);extern unsigned dnet_addr_type(__le16 addr);extern int dn_fib_lookup(const struct flowi *fl, struct dn_fib_res *res); /* * rtnetlink interface */extern int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);extern int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);extern int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb); extern int dn_fib_rtm_delrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);extern int dn_fib_rtm_newrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);extern int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb); 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)		dn_fib_rule_put(res->r);} extern struct dn_fib_table *dn_fib_tables[]; #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 */ static inline __le16 dnet_make_mask(int n){        if (n)                return dn_htons(~((1<<(16-n))-1));        return 0;} #endif /* _NET_DN_FIB_H */