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#ifndef _NET_DN_FIB_H
#define _NET_DN_FIB_H
#include <linux/config.h>
#ifdef CONFIG_DECNET_ROUTER
#include <linux/rtnetlink.h>
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;
unsigned char *rta_flow;
struct rta_cacheinfo *rta_ci;
};
struct dn_fib_key {
dn_address src;
dn_address dst;
int iif;
int oif;
u32 fwmark;
unsigned char scope;
};
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;
u32 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;
dn_address fib_prefsrc;
u32 fib_priority;
int fib_nhs;
int fib_power;
struct dn_fib_nh fib_nh[0];
#define fib_dev fib_nh[0].nh_dev
};
#define DN_FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel])
#define DN_FIB_RES_RESET(res) ((res).nh_sel = 0)
#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 {
u16 datum;
} dn_fib_key_t;
typedef struct {
u16 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 dn_fib_key *key,
struct dn_fib_res *res);
int (*flush)(struct dn_fib_table *t);
#ifdef CONFIG_PROC_FS
int (*get_info)(struct dn_fib_table *table, char *buf,
int first, int count);
#endif /* CONFIG_PROC_FS */
#ifdef CONFIG_RTNETLINK
int (*dump)(struct dn_fib_table *t, struct sk_buff *skb, struct netlink_callback *cb);
#endif /* CONFIG_RTNETLINK */
unsigned char data[0];
};
/*
* dn_fib.c
*/
extern void dn_fib_init(void);
extern void dn_fib_cleanup(void);
extern int dn_fib_rt_message(struct sk_buff *skb);
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 dn_fib_key *key, struct dn_fib_res *res);
extern void dn_fib_release_info(struct dn_fib_info *fi);
extern u16 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 dn_fib_key *key,
struct dn_fib_res *res);
extern int dn_fib_sync_down(dn_address 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 int dn_fib_lookup(struct dn_fib_key *key, struct dn_fib_res *res);
/*
* rtnetlink interface
*/
#ifdef CONFIG_RTNETLINK
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);
#endif /* CONFIG_RTNETLINK */
#define DN_NUM_TABLES 255
#define DN_MIN_TABLE 1
#define DN_DEFAULT_TABLE 1
#define DN_L1_TABLE 1
#define DN_L2_TABLE 2
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);
}
static __inline__ u16 dnet_make_mask(int n)
{
if (n)
return htons(~((1<<(16-n))-1));
return 0;
}
#endif /* CONFIG_DECNET_ROUTER */
#endif /* _NET_DN_FIB_H */
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