include/net/dn_fib.h

   1 #ifndef _NET_DN_FIB_H
   2 #define _NET_DN_FIB_H
   3
   4 #include <linux/config.h>
   5
   6 #ifdef CONFIG_DECNET_ROUTER
   7
   8
   9 struct dn_fib_res {
  10         dn_address res_addr;
  11         dn_address res_mask;
  12         int res_ifindex;
  13         int res_proto;
  14         int res_cost;
  15         int res_type;
  16         struct dn_fib_node *res_fn;
  17         struct dn_fib_action *res_fa;
  18 };
  19
  20 struct dn_fib_action {
  21         struct dn_fib_action *fa_next;
  22         dn_address fa_key;
  23         dn_address fa_mask;
  24         int fa_ifindex;
  25         int fa_proto;
  26         int fa_cost;
  27         int fa_type;
  28         union {
  29                 struct neighbour *fau_neigh;    /* Normal route */
  30                 int fau_error;                  /* Reject       */
  31                 int fau_table;                  /* Throw        */
  32         } fa_u;
  33 #define fa_neigh fa_u.fau_neigh
  34 #define fa_error fa_u.fau_error
  35 #define fa_table fa_u.fau_table
  36 };
  37
  38 struct dn_fib_node {
  39         struct dn_fib_node *fn_up;
  40         dn_address fn_cmpmask;
  41         dn_address fn_key;
  42         int fn_shift;
  43         struct dn_fib_action *fn_action;
  44         struct dn_fib_node *fn_children[2];
  45 };
  46
  47 #define DN_FIB_NEXT(fibnode, key) ((fibnode)->fn_children[((key) ^ (fibnode)->fn_cmpmask) >> (fibnode)->fn_shift])
  48
  49 struct dn_fib_walker_t;
  50
  51 struct dn_fib_table {
  52         int n;
  53         unsigned long count;
  54         struct dn_fib_node *root;
  55
  56         int (*insert)(struct dn_fib_table *t, struct dn_fib_action *fa);
  57         int (*delete)(struct dn_fib_table *t, struct dn_fib_action *fa);
  58         int (*lookup)(struct dn_fib_table *t, struct dn_fib_res *res);
  59         int (*walk)(struct dn_fib_walker_t *fwt);
  60 #ifdef CONFIG_RTNETLINK
  61         int (*dump)(struct dn_fib_table *t, struct sk_buff *skb, struct netlink_callback *cb);
  62 #endif /* CONFIG_RTNETLINK */
  63 };
  64
  65 struct dn_fib_walker_t {
  66         struct dn_fib_table *table;
  67         void *arg;
  68         int (*fxn)(struct dn_fib_walker_t *fwt, struct dn_fib_node *n);
  69 };
  70
  71 extern void dn_fib_init(void);
  72 extern void dn_fib_cleanup(void);
  73
  74 extern int dn_fib_rt_message(struct sk_buff *skb);
  75 extern int dn_fib_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
  76
  77 #ifdef CONFIG_RTNETLINK
  78 extern int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
  79 extern int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
  80 extern int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb);
  81 extern int dn_fib_rtm_getroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
  82 #endif /* CONFIG_RTNETLINK */
  83 #endif /* CONFIG_DECNET_ROUTER */
  84
  85 #endif /* _NET_DN_FIB_H */