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-rw-r--r--nest/route.h19
-rw-r--r--nest/rt-attr.c5
-rw-r--r--nest/rt-dev.c6
-rw-r--r--nest/rt-table.c114
4 files changed, 50 insertions, 94 deletions
diff --git a/nest/route.h b/nest/route.h
index ebe10f1..10628cd 100644
--- a/nest/route.h
+++ b/nest/route.h
@@ -94,17 +94,17 @@ void fit_put(struct fib_iterator *, struct fib_node *);
#define FIB_ITERATE_PUT(it, z) fit_put(it, z)
/*
- * Master Routing Tables. Generally speaking, each of them is a list
- * of FIB (one per TOS) with each entry pointing to a list of route entries
- * representing routes to given network.
+ * Master Routing Tables. Generally speaking, each of them contains a FIB
+ * with each entry pointing to a list of route entries representing routes
+ * to given network (with the selected one at the head).
+ *
* Each of the RTE's contains variable data (the preference and protocol-dependent
* metrics) and a pointer to a route attribute block common for many routes).
- * It's guaranteed that there is at most one RTE for every (prefix,proto,source) triplet.
+ *
+ * It's guaranteed that there is at most one RTE for every (prefix,proto) pair.
*/
typedef struct rtable {
- struct rtable *sibling; /* Our sibling for different TOS */
- byte tos; /* TOS for this table */
struct fib fib;
char *name; /* Name of this table */
} rtable;
@@ -156,8 +156,8 @@ extern rtable master_table;
void rt_init(void);
void rt_setup(pool *, rtable *, char *);
-net *net_find(rtable *tab, unsigned tos, ip_addr addr, unsigned len);
-net *net_get(rtable *tab, unsigned tos, ip_addr addr, unsigned len);
+static inline net *net_find(rtable *tab, ip_addr addr, unsigned len) { return (net *) fib_find(&tab->fib, &addr, len); }
+static inline net *net_get(rtable *tab, ip_addr addr, unsigned len) { return (net *) fib_get(&tab->fib, &addr, len); }
rte *rte_find(net *net, struct proto *p);
rte *rte_get_temp(struct rta *);
void rte_update(net *net, struct proto *p, rte *new);
@@ -188,10 +188,9 @@ typedef struct rta {
byte scope; /* Route scope (SCOPE_... -- see ip.h) */
byte cast; /* Casting type (RTC_...) */
byte dest; /* Route destination type (RTD_...) */
- byte tos; /* TOS of this route */
byte flags; /* Route flags (RTF_...) */
byte aflags; /* Attribute cache flags (RTAF_...) */
- byte rfu; /* Padding */
+ byte rfu, rfu2; /* Padding */
ip_addr gw; /* Next hop */
ip_addr from; /* Advertising router */
struct iface *iface; /* Outgoing interface */
diff --git a/nest/rt-attr.c b/nest/rt-attr.c
index 2cb2bc5..2a369ce 100644
--- a/nest/rt-attr.c
+++ b/nest/rt-attr.c
@@ -271,7 +271,6 @@ rta_same(rta *x, rta *y)
x->scope == y->scope &&
x->cast == y->cast &&
x->dest == y->dest &&
- x->tos == y->tos &&
x->flags == y->flags &&
ipa_equal(x->gw, y->gw) &&
ipa_equal(x->from, y->from) &&
@@ -334,9 +333,9 @@ rta_dump(rta *a)
static char *rtc[] = { "", " BC", " MC", " AC" };
static char *rtd[] = { "", " DEV", " HOLE", " UNREACH", " PROHIBIT" };
- debug("p=%s uc=%d %s %s%s%s TOS=%d",
+ debug("p=%s uc=%d %s %s%s%s",
a->proto->name, a->uc, rts[a->source], sco[a->scope], rtc[a->cast],
- rtd[a->dest], a->tos);
+ rtd[a->dest]);
if (a->flags & RTF_EXTERIOR)
debug(" EXT");
if (a->flags & RTF_TAGGED)
diff --git a/nest/rt-dev.c b/nest/rt-dev.c
index a92fe6f..d6035f5 100644
--- a/nest/rt-dev.c
+++ b/nest/rt-dev.c
@@ -31,7 +31,7 @@ dev_if_notify(struct proto *p, unsigned c, struct iface *new, struct iface *old)
net *n;
debug("dev_if_notify: %s going down\n", old->name);
- n = net_find(p->table, 0, old->prefix, old->pxlen);
+ n = net_find(p->table, old->prefix, old->pxlen);
if (!n)
{
debug("dev_if_notify: device shutdown: prefix not found\n");
@@ -56,9 +56,9 @@ dev_if_notify(struct proto *p, unsigned c, struct iface *new, struct iface *old)
A.attrs = NULL;
a = rta_lookup(&A);
if (new->flags & IF_UNNUMBERED)
- n = net_get(p->table, 0, new->opposite, new->pxlen);
+ n = net_get(p->table, new->opposite, new->pxlen);
else
- n = net_get(p->table, 0, new->prefix, new->pxlen);
+ n = net_get(p->table, new->prefix, new->pxlen);
e = rte_get_temp(a);
e->net = n;
e->pflags = 0;
diff --git a/nest/rt-table.c b/nest/rt-table.c
index 47b4bb7..2b60bb8 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -46,35 +46,6 @@ rt_setup(pool *p, rtable *t, char *name)
t->name = name;
}
-net *
-net_find(rtable *tab, unsigned tos, ip_addr mask, unsigned len)
-{
- while (tab && tab->tos != tos)
- tab = tab->sibling;
- if (!tab)
- return NULL;
- return (net *) fib_find(&tab->fib, &mask, len);
-}
-
-net *
-net_get(rtable *tab, unsigned tos, ip_addr mask, unsigned len)
-{
- rtable *t = tab;
-
- while (t && t->tos != tos)
- t = t->sibling;
- if (!t)
- {
- while (tab->sibling)
- tab = tab->sibling;
- t = mb_alloc(&root_pool, sizeof(rtable));
- rt_setup(&root_pool, t, NULL); /* FIXME: Either delete all the TOS logic or use the right pool */
- tab->sibling = t;
- t->tos = tos;
- }
- return (net *) fib_get(&t->fib, &mask, len);
-}
-
rte *
rte_find(net *net, struct proto *p)
{
@@ -181,23 +152,19 @@ rt_feed_baby(struct proto *p)
if (!p->rt_notify)
return;
debug("Announcing routes to new protocol %s\n", p->name);
- while (t)
+ FIB_WALK(&t->fib, fn)
{
- FIB_WALK(&t->fib, fn)
+ net *n = (net *) fn;
+ rte *e;
+ for(e=n->routes; e; e=e->next)
{
- net *n = (net *) fn;
- rte *e;
- for(e=n->routes; e; e=e->next)
- {
- struct proto *q = e->attrs->proto;
- ea_list *tmpa = q->make_tmp_attrs ? q->make_tmp_attrs(e, rte_update_pool) : NULL;
- do_rte_announce(p, n, e, NULL, tmpa);
- lp_flush(rte_update_pool);
- }
+ struct proto *q = e->attrs->proto;
+ ea_list *tmpa = q->make_tmp_attrs ? q->make_tmp_attrs(e, rte_update_pool) : NULL;
+ do_rte_announce(p, n, e, NULL, tmpa);
+ lp_flush(rte_update_pool);
}
- FIB_WALK_END;
- t = t->sibling;
}
+ FIB_WALK_END;
}
static inline int
@@ -396,21 +363,16 @@ rt_dump(rtable *t)
net *n;
debug("Dump of routing table <%s>\n", t->name);
- while (t)
- {
- debug("Routes for TOS %02x:\n", t->tos);
#ifdef DEBUGGING
- fib_check(&t->fib);
+ fib_check(&t->fib);
#endif
- FIB_WALK(&t->fib, fn)
- {
- n = (net *) fn;
- for(e=n->routes; e; e=e->next)
- rte_dump(e);
- }
- FIB_WALK_END;
- t = t->sibling;
+ FIB_WALK(&t->fib, fn)
+ {
+ n = (net *) fn;
+ for(e=n->routes; e; e=e->next)
+ rte_dump(e);
}
+ FIB_WALK_END;
debug("\n");
}
@@ -449,33 +411,29 @@ rt_prune(rtable *tab)
int rcnt = 0, rdel = 0, ncnt = 0, ndel = 0;
DBG("Pruning route table %s\n", tab->name);
- while (tab)
+ FIB_ITERATE_INIT(&fit, &tab->fib);
+again:
+ FIB_ITERATE_START(&tab->fib, &fit, f)
{
- FIB_ITERATE_INIT(&fit, &tab->fib);
- again:
- FIB_ITERATE_START(&tab->fib, &fit, f)
+ net *n = (net *) f;
+ rte *e;
+ ncnt++;
+ rescan:
+ for (e=n->routes; e; e=e->next, rcnt++)
+ if (e->attrs->proto->core_state != FS_HAPPY)
+ {
+ rte_discard(e);
+ rdel++;
+ goto rescan;
+ }
+ if (!n->routes) /* Orphaned FIB entry? */
{
- net *n = (net *) f;
- rte *e;
- ncnt++;
- rescan:
- for (e=n->routes; e; e=e->next, rcnt++)
- if (e->attrs->proto->core_state != FS_HAPPY)
- {
- rte_discard(e);
- rdel++;
- goto rescan;
- }
- if (!n->routes) /* Orphaned FIB entry? */
- {
- FIB_ITERATE_PUT(&fit, f);
- fib_delete(&tab->fib, f);
- ndel++;
- goto again;
- }
+ FIB_ITERATE_PUT(&fit, f);
+ fib_delete(&tab->fib, f);
+ ndel++;
+ goto again;
}
- FIB_ITERATE_END(f);
- tab = tab->sibling;
}
+ FIB_ITERATE_END(f);
DBG("Pruned %d of %d routes and %d of %d networks\n", rcnt, rdel, ncnt, ndel);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 00:02:33 +0100