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Comparing cluster list length should be later in bgp_rte_better().

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This commit is contained in:
Ondrej Zajicek 2010-02-26 14:09:24 +01:00
parent 212ff33582
commit 3075824dbd
1 changed files with 10 additions and 10 deletions
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20
proto/bgp/attrs.c
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@ -1070,16 +1070,6 @@ bgp_rte_better(rte *new, rte *old)
/* Skipping RFC 4271 9.1.2.2. e) */ /* Skipping RFC 4271 9.1.2.2. e) */
/* We don't have interior distances */ /* We don't have interior distances */
/* RFC 4456 9. b) Compare cluster list lengths */
x = ea_find(new->attrs->eattrs, EA_CODE(EAP_BGP, BA_CLUSTER_LIST));
y = ea_find(old->attrs->eattrs, EA_CODE(EAP_BGP, BA_CLUSTER_LIST));
n = x ? int_set_get_size(x->u.ptr) : 0;
o = y ? int_set_get_size(y->u.ptr) : 0;
if (n < o)
return 1;
if (n > o)
return 0;
/* RFC 4271 9.1.2.2. f) Compare BGP identifiers */ /* RFC 4271 9.1.2.2. f) Compare BGP identifiers */
/* RFC 4456 9. a) Use ORIGINATOR_ID instead of local neighor ID */ /* RFC 4456 9. a) Use ORIGINATOR_ID instead of local neighor ID */
x = ea_find(new->attrs->eattrs, EA_CODE(EAP_BGP, BA_ORIGINATOR_ID)); x = ea_find(new->attrs->eattrs, EA_CODE(EAP_BGP, BA_ORIGINATOR_ID));
@ -1099,6 +1089,16 @@ bgp_rte_better(rte *new, rte *old)
if (n > o) if (n > o)
return 0; return 0;
/* RFC 4456 9. b) Compare cluster list lengths */
x = ea_find(new->attrs->eattrs, EA_CODE(EAP_BGP, BA_CLUSTER_LIST));
y = ea_find(old->attrs->eattrs, EA_CODE(EAP_BGP, BA_CLUSTER_LIST));
n = x ? int_set_get_size(x->u.ptr) : 0;
o = y ? int_set_get_size(y->u.ptr) : 0;
if (n < o)
return 1;
if (n > o)
return 0;
/* RFC 4271 9.1.2.2. g) Compare peer IP adresses */ /* RFC 4271 9.1.2.2. g) Compare peer IP adresses */
return (ipa_compare(new_bgp->cf->remote_ip, old_bgp->cf->remote_ip) < 0); return (ipa_compare(new_bgp->cf->remote_ip, old_bgp->cf->remote_ip) < 0);
} }