diff options
Diffstat (limited to 'release/src/linux/linux/include/net/dn_fib.h')
| -rw-r--r-- | release/src/linux/linux/include/net/dn_fib.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/release/src/linux/linux/include/net/dn_fib.h b/release/src/linux/linux/include/net/dn_fib.h new file mode 100644 index 00000000..e3e5d7b9 --- /dev/null +++ b/release/src/linux/linux/include/net/dn_fib.h @@ -0,0 +1,203 @@ +#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 */ |