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After contemplating about RIP route timeouts for a long time, I've implemented

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protocol callbacks for route insertion and deletion from the central table.
RIP should maintain its own per-protocol queue of existing routes, scan it
periodically and call rte_discard() for routes that have timed out.
This commit is contained in:
Martin Mares 1998-10-18 11:13:16 +00:00
parent 570ce189d7
commit 5b22683d2f
3 changed files with 16 additions and 2 deletions
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3
nest/protocol.h
View File

@ -58,7 +58,6 @@ struct proto {
unsigned debug; /* Debugging flags */ unsigned debug; /* Debugging flags */
pool *pool; /* Local objects */ pool *pool; /* Local objects */
unsigned preference; /* Default route preference */ unsigned preference; /* Default route preference */
int ready; /* Already initialized */
void (*if_notify)(struct proto *, unsigned flags, struct iface *new, struct iface *old); void (*if_notify)(struct proto *, unsigned flags, struct iface *new, struct iface *old);
void (*rt_notify)(struct proto *, struct network *net, struct rte *new, struct rte *old); void (*rt_notify)(struct proto *, struct network *net, struct rte *new, struct rte *old);
@ -69,6 +68,8 @@ struct proto {
int (*rta_same)(struct rtattr *, struct rtattr *); int (*rta_same)(struct rtattr *, struct rtattr *);
int (*rte_better)(struct rte *, struct rte *); int (*rte_better)(struct rte *, struct rte *);
int (*rte_insert)(struct network *, struct rte *);
int (*rte_remove)(struct network *, struct rte *);
/* Reconfigure function? */ /* Reconfigure function? */
/* Interface patterns */ /* Interface patterns */

1
nest/route.h
View File

@ -123,6 +123,7 @@ net *net_get(rtable *tab, unsigned tos, ip_addr addr, unsigned len);
rte *rte_find(net *net, struct proto *p); rte *rte_find(net *net, struct proto *p);
rte *rte_get_temp(struct rtattr *); rte *rte_get_temp(struct rtattr *);
void rte_update(net *net, struct proto *p, rte *new); void rte_update(net *net, struct proto *p, rte *new);
void rte_discard(net *net, rte *old);
void rte_dump(net *, rte *); void rte_dump(net *, rte *);
void rt_dump(rtable *); void rt_dump(rtable *);
void rt_dump_all(void); void rt_dump_all(void);

12
nest/rt-table.c
View File

@ -198,8 +198,20 @@ rte_update(net *net, struct proto *p, rte *new)
} }
} }
if (old) if (old)
{
if (p->rte_remove)
p->rte_remove(net, old);
rte_free(old); rte_free(old);
}
new->lastmod = now; new->lastmod = now;
if (p->rte_insert)
p->rte_insert(net, new);
}
void
rte_discard(net *net, rte *old) /* Non-filtered route deletion, used during garbage collection */
{
rte_update(net, old->attrs->proto, NULL);
} }
void void