diff options
Diffstat (limited to 'proto/bgp/attrs.c')
| -rw-r--r-- | proto/bgp/attrs.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c index a713b7a2..73939bf0 100644 --- a/proto/bgp/attrs.c +++ b/proto/bgp/attrs.c @@ -372,8 +372,10 @@ bgp_aigp_set_metric(struct linpool *pool, const struct adata *ad, u64 metric) } int -bgp_total_aigp_metric_(struct rta *a, u64 *metric, const struct adata **ad) +bgp_total_aigp_metric_(const rte *e, u64 *metric, const struct adata **ad) { + rta *a = e->attrs; + eattr *ea = ea_find(a->eattrs, BGP_EA_ID(BA_AIGP)); if (!ea) return 0; @@ -383,7 +385,7 @@ bgp_total_aigp_metric_(struct rta *a, u64 *metric, const struct adata **ad) return 0; u64 aigp = get_u64(b + 3); - u64 step = a->igp_metric; + u64 step = rt_get_igp_metric(e); if (!rta_resolvable(a) || (step >= IGP_METRIC_UNKNOWN)) step = BGP_AIGP_MAX; @@ -411,9 +413,9 @@ bgp_init_aigp_metric(rte *e, u64 *metric, const struct adata **ad) } u32 -bgp_rte_igp_metric(struct rte *rt) +bgp_rte_igp_metric(const rte *rt) { - u64 metric = bgp_total_aigp_metric(rt->attrs); + u64 metric = bgp_total_aigp_metric(rt); return (u32) MIN(metric, (u64) IGP_METRIC_UNKNOWN); } @@ -1814,7 +1816,7 @@ bgp_update_attrs(struct bgp_proto *p, struct bgp_channel *c, rte *e, ea_list *at /* AIGP attribute - accumulate local metric or originate new one */ u64 metric; if (s.local_next_hop && - (bgp_total_aigp_metric_(e->attrs, &metric, &ad) || + (bgp_total_aigp_metric_(e, &metric, &ad) || (c->cf->aigp_originate && bgp_init_aigp_metric(e, &metric, &ad)))) { ad = bgp_aigp_set_metric(pool, ad, metric); @@ -1986,8 +1988,8 @@ bgp_rte_better(rte *new, rte *old) return 0; /* RFC 7311 4.1 - Apply AIGP metric */ - u64 n2 = bgp_total_aigp_metric(new->attrs); - u64 o2 = bgp_total_aigp_metric(old->attrs); + u64 n2 = bgp_total_aigp_metric(new); + u64 o2 = bgp_total_aigp_metric(old); if (n2 < o2) return 1; if (n2 > o2) @@ -2047,8 +2049,8 @@ bgp_rte_better(rte *new, rte *old) return 1; /* RFC 4271 9.1.2.2. e) Compare IGP metrics */ - n = new_bgp->cf->igp_metric ? new->attrs->igp_metric : 0; - o = old_bgp->cf->igp_metric ? old->attrs->igp_metric : 0; + n = new_bgp->cf->igp_metric ? rt_get_igp_metric(new) : 0; + o = old_bgp->cf->igp_metric ? rt_get_igp_metric(old) : 0; if (n < o) return 1; if (n > o) @@ -2156,8 +2158,8 @@ bgp_rte_mergable(rte *pri, rte *sec) return 0; /* RFC 4271 9.1.2.2. e) Compare IGP metrics */ - p = pri_bgp->cf->igp_metric ? pri->attrs->igp_metric : 0; - s = sec_bgp->cf->igp_metric ? sec->attrs->igp_metric : 0; + p = pri_bgp->cf->igp_metric ? rt_get_igp_metric(pri) : 0; + s = sec_bgp->cf->igp_metric ? rt_get_igp_metric(sec) : 0; if (p != s) return 0; @@ -2394,19 +2396,19 @@ bgp_get_route_info(rte *e, byte *buf) if (rte_stale(e)) buf += bsprintf(buf, "s"); - u64 metric = bgp_total_aigp_metric(e->attrs); + u64 metric = bgp_total_aigp_metric(e); if (metric < BGP_AIGP_MAX) { buf += bsprintf(buf, "/%lu", metric); } - else if (e->attrs->igp_metric) + else if (metric = rt_get_igp_metric(e)) { if (!rta_resolvable(e->attrs)) buf += bsprintf(buf, "/-"); - else if (e->attrs->igp_metric >= IGP_METRIC_UNKNOWN) + else if (metric >= IGP_METRIC_UNKNOWN) buf += bsprintf(buf, "/?"); else - buf += bsprintf(buf, "/%d", e->attrs->igp_metric); + buf += bsprintf(buf, "/%d", metric); } buf += bsprintf(buf, ") ["); |