From 0da472d7e867e31c49fccc4ee45df3ef47c29c9b Mon Sep 17 00:00:00 2001 From: Martin Mares Date: Wed, 8 Dec 1999 14:16:13 +0000 Subject: Except for special protocols (nowadays only the kernel syncer), don't export host and link scope routes. --- nest/rt-table.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) (limited to 'nest/rt-table.c') diff --git a/nest/rt-table.c b/nest/rt-table.c index edbf154..dc13ea7 100644 --- a/nest/rt-table.c +++ b/nest/rt-table.c @@ -102,7 +102,7 @@ rte_better(rte *new, rte *old) } static inline void -do_rte_announce(struct announce_hook *a, net *net, rte *new, rte *old, ea_list *tmpa) +do_rte_announce(struct announce_hook *a, net *net, rte *new, rte *old, ea_list *tmpa, int class) { struct proto *p = a->proto; rte *new0 = new; @@ -110,8 +110,9 @@ do_rte_announce(struct announce_hook *a, net *net, rte *new, rte *old, ea_list * if (new) { - int ok = p->import_control ? p->import_control(p, &new, &tmpa, rte_update_pool) : 0; - if (ok < 0 || + int ok; + if ((class & IADDR_SCOPE_MASK) < p->min_scope || + (ok = p->import_control ? p->import_control(p, &new, &tmpa, rte_update_pool) : 0) < 0 || (!ok && (p->out_filter == FILTER_REJECT || p->out_filter && f_run(p->out_filter, &new, &tmpa, rte_update_pool) > F_MODIFY) ) @@ -142,11 +143,12 @@ static void rte_announce(rtable *tab, net *net, rte *new, rte *old, ea_list *tmpa) { struct announce_hook *a; + int class = ipa_classify(net->n.prefix); WALK_LIST(a, tab->hooks) { ASSERT(a->proto->core_state == FS_HAPPY || a->proto->core_state == FS_FEEDING); - do_rte_announce(a, net, new, old, tmpa); + do_rte_announce(a, net, new, old, tmpa, class); } } @@ -169,7 +171,7 @@ rt_feed_baby(struct proto *p) { 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(h, n, e, NULL, tmpa); + do_rte_announce(h, n, e, NULL, tmpa, ipa_classify(n->n.prefix)); lp_flush(rte_update_pool); } } @@ -195,15 +197,12 @@ rte_validate(rte *e) n->n.prefix, n->n.pxlen, e->attrs->from, e->attrs->proto->name); return 0; } - if ((c & IADDR_SCOPE_MASK) == SCOPE_HOST) + if ((c & IADDR_SCOPE_MASK) < e->attrs->proto->min_scope) { - int s = e->attrs->source; - if (s != RTS_STATIC && s != RTS_DEVICE && s != RTS_STATIC_DEVICE) - { - log(L_WARN "Ignoring host scope route %I/%d received from %I via %s", - n->n.prefix, n->n.pxlen, e->attrs->from, e->attrs->proto->name); - return 0; - } + log(L_WARN "Ignoring %s scope route %I/%d received from %I via %s", + ip_scope_text(c & IADDR_SCOPE_MASK), + n->n.prefix, n->n.pxlen, e->attrs->from, e->attrs->proto->name); + return 0; } } return 1; -- cgit v1.2.3