| #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 */ |
| int (*dump)(struct dn_fib_table *t, struct sk_buff *skb, struct netlink_callback *cb); |
| |
| 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 |
| */ |
| 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); |
| |
| #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 */ |