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Merged multipath and single-path data structures.

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Dropped struct mpnh and mpnh_*()
Now struct nexthop exists, nexthop_*(), and also included struct nexthop
into struct rta.

Also converted RTD_DEVICE and RTD_ROUTER to RTD_UNICAST. If it is needed
to distinguish between these two cases, RTD_DEVICE is equivalent to
IPA_ZERO(a->nh.gw), RTD_ROUTER is then IPA_NONZERO(a->nh.gw).

From now on, we also explicitely want C99 compatible compiler. We assume
that this 20-year norm should be known almost everywhere.
This commit is contained in:
Jan Moskyto Matejka
2016-05-06 15:48:35 +02:00
parent b7605d5c95
commit 4e276a8920
21 changed files with 434 additions and 499 deletions
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13
proto/bgp/packets.c
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@@ -699,9 +699,10 @@ bgp_apply_next_hop(struct bgp_parse_state *s, rta *a, ip_addr gw, ip_addr ll)
if (!nbr || (nbr->scope == SCOPE_HOST))
WITHDRAW(BAD_NEXT_HOP);
a->dest = RTD_ROUTER;
a->gw = nbr->addr;
a->iface = nbr->iface;
a->dest = RTD_UNICAST;
a->nh.gw = nbr->addr;
a->nh.iface = nbr->iface;
a->nh.next = NULL;
a->hostentry = NULL;
a->igp_metric = 0;
}
@@ -749,7 +750,7 @@ bgp_use_gateway(struct bgp_export_state *s)
return 0;
/* We need valid global gateway */
if ((ra->dest != RTD_ROUTER) || ipa_zero(ra->gw) || ipa_is_link_local(ra->gw))
if ((ra->dest != RTD_UNICAST) || (ra->nh.next) || ipa_zero(ra->nh.gw) || ipa_is_link_local(ra->nh.gw))
return 0;
/* Use it when exported to internal peers */
@@ -757,7 +758,7 @@ bgp_use_gateway(struct bgp_export_state *s)
return 1;
/* Use it when forwarded to single-hop BGP peer on on the same iface */
return p->neigh && (p->neigh->iface == ra->iface);
return p->neigh && (p->neigh->iface == ra->nh.iface);
}
static void
@@ -767,7 +768,7 @@ bgp_update_next_hop_ip(struct bgp_export_state *s, eattr *a, ea_list **to)
{
if (bgp_use_gateway(s))
{
ip_addr nh[1] = { s->route->attrs->gw };
ip_addr nh[1] = { s->route->attrs->nh.gw };
bgp_set_attr_data(to, s->pool, BA_NEXT_HOP, 0, nh, 16);
}
else