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Huge OSPF database redesign. Since now, all LSAs of all areas

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are in single database. This avoids duplication of external LSAs and
fixes bug in external LSA distribution.
This commit is contained in:
Ondrej Filip
2004-07-15 16:37:52 +00:00
parent 777acf91bb
commit 86c84d76b7
17 changed files with 233 additions and 234 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
proto/ospf/rt.c
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@@ -13,7 +13,7 @@ add_cand(list * l, struct top_hash_entry *en,
static void
calc_next_hop(struct top_hash_entry *en,
struct top_hash_entry *par, struct ospf_area *oa);
static void ospf_ext_spfa(struct ospf_area *oa);
static void ospf_ext_spf(struct proto_ospf *po);
static void rt_sync(struct proto_ospf *po);
static void
@@ -231,7 +231,7 @@ ospf_rt_spfa(struct ospf_area *oa)
break;
case LSART_NET:
tmp = ospf_hash_find(oa->gr, rtl->id, rtl->id, LSA_T_NET);
tmp = ospf_hash_find(po->gr, oa->areaid, rtl->id, rtl->id, LSA_T_NET);
if (tmp == NULL)
DBG("Not found!\n");
else
@@ -241,7 +241,7 @@ ospf_rt_spfa(struct ospf_area *oa)
case LSART_VLNK:
vlink = 1;
case LSART_PTP:
tmp = ospf_hash_find(oa->gr, rtl->id, rtl->id, LSA_T_RT);
tmp = ospf_hash_find(po->gr, oa->areaid, rtl->id, rtl->id, LSA_T_RT);
DBG("PTP found.\n");
break;
default:
@@ -272,7 +272,7 @@ ospf_rt_spfa(struct ospf_area *oa)
sizeof(struct ospf_lsa_net)) / sizeof(u32); i++)
{
DBG(" Working on router %I ", *(rts + i));
tmp = ospf_hash_find(oa->gr, *(rts + i), *(rts + i), LSA_T_RT);
tmp = ospf_hash_find(po->gr, oa->areaid, *(rts + i), *(rts + i), LSA_T_RT);
if (tmp != NULL)
DBG("Found :-)\n");
else
@@ -288,7 +288,7 @@ ospf_rt_spfa(struct ospf_area *oa)
{
if ((iface->type == OSPF_IT_VLINK) && (iface->voa == oa))
{
if ((tmp = ospf_hash_find(oa->gr, iface->vid, iface->vid, LSA_T_RT)) &&
if ((tmp = ospf_hash_find(po->gr, oa->areaid, iface->vid, iface->vid, LSA_T_RT)) &&
(!ipa_equal(tmp->lb, IPA_NONE)))
{
if ((iface->state != OSPF_IS_PTP) || (iface->iface != tmp->nhi) || (!ipa_equal(iface->vip, tmp->lb)))
@@ -319,6 +319,7 @@ link_back(struct ospf_area *oa, struct top_hash_entry *fol, struct top_hash_entr
struct ospf_lsa_net *ln;
struct ospf_lsa_rt *rt;
struct ospf_lsa_rt_link *rtl, *rr;
struct proto_ospf *po = oa->po;
if(!pre) return 0;
if(!fol) return 0;
@@ -335,7 +336,7 @@ link_back(struct ospf_area *oa, struct top_hash_entry *fol, struct top_hash_entr
case LSART_STUB:
break;
case LSART_NET:
if (ospf_hash_find(oa->gr, rtl->id, rtl->id, LSA_T_NET) == pre)
if (ospf_hash_find(po->gr, oa->areaid, rtl->id, rtl->id, LSA_T_NET) == pre)
{
fol->lb = ipa_from_u32(rtl->data);
return 1;
@@ -343,7 +344,7 @@ link_back(struct ospf_area *oa, struct top_hash_entry *fol, struct top_hash_entr
break;
case LSART_VLNK:
case LSART_PTP:
if (ospf_hash_find(oa->gr, rtl->id, rtl->id, LSA_T_RT) == pre)
if (ospf_hash_find(po->gr, oa->areaid, rtl->id, rtl->id, LSA_T_RT) == pre)
{
fol->lb = ipa_from_u32(rtl->data);
return 1;
@@ -361,7 +362,7 @@ link_back(struct ospf_area *oa, struct top_hash_entry *fol, struct top_hash_entr
for (i = 0; i < (fol->lsa.length - sizeof(struct ospf_lsa_header) -
sizeof(struct ospf_lsa_net)) / sizeof(u32); i++)
{
if (ospf_hash_find(oa->gr, *(rts + i), *(rts + i), LSA_T_RT) == pre)
if (ospf_hash_find(po->gr, oa->areaid, *(rts + i), *(rts + i), LSA_T_RT) == pre)
{
return 1;
}
@@ -388,8 +389,10 @@ ospf_rt_sum_tr(struct ospf_area *oa)
if(!bb) return;
WALK_SLIST(en, oa->lsal)
WALK_SLIST(en, po->lsal)
{
if (en->oa != oa)
continue;
if (en->lsa.age == LSA_MAXAGE)
continue;
if (en->dist == LSINFINITY)
@@ -398,7 +401,7 @@ ospf_rt_sum_tr(struct ospf_area *oa)
if (en->lsa.rt == p->cf->global->router_id)
continue;
if((en->lsa.type != LSA_T_SUM_RT) && (en->lsa.type != LSA_T_SUM_NET))
if ((en->lsa.type != LSA_T_SUM_RT) && (en->lsa.type != LSA_T_SUM_NET))
continue;
mask = (ip_addr *)en->lsa_body;
@@ -457,8 +460,10 @@ ospf_rt_sum(struct ospf_area *oa)
OSPF_TRACE(D_EVENTS, "Starting routing table calculation for inter-area routes");
WALK_SLIST(en, oa->lsal)
WALK_SLIST(en, po->lsal)
{
if (en->oa != oa)
continue;
/* Page 169 (1) */
if (en->lsa.age == LSA_MAXAGE)
continue;
@@ -528,6 +533,8 @@ ospf_rt_spf(struct proto_ospf *po)
if (po->areano == 0) return;
po->cleanup = 1;
OSPF_TRACE(D_EVENTS, "Starting routing table calculation");
/* Invalidate old routing table */
@@ -580,20 +587,16 @@ ospf_rt_spf(struct proto_ospf *po)
}
}
WALK_LIST(oa, po->area_list)
{
if (!oa->stub)
{
ospf_ext_spfa(oa);
break;
}
}
ospf_ext_spf(po);
rt_sync(po);
po->calcrt = 0;
}
/**
* ospf_ext_spfa - calculate external paths
* ospf_ext_spf - calculate external paths
* @po: protocol
*
* After routing table for any area is calculated, calculation of external
@@ -601,9 +604,8 @@ ospf_rt_spf(struct proto_ospf *po)
* Inter- and Intra-area paths are always prefered over externals.
*/
static void
ospf_ext_spfa(struct ospf_area *oa)
ospf_ext_spf(struct proto_ospf *po)
{
struct proto_ospf *po = oa->po;
ort *nf1, *nf2, *nfh;
orta nfa;
struct top_hash_entry *en;
@@ -621,7 +623,7 @@ ospf_ext_spfa(struct ospf_area *oa)
OSPF_TRACE(D_EVENTS, "Starting routing table calculation for ext routes");
WALK_SLIST(en, oa->lsal)
WALK_SLIST(en, po->lsal)
{
if (en->lsa.type != LSA_T_EXT)
continue;
@@ -729,7 +731,7 @@ ospf_ext_spfa(struct ospf_area *oa)
nfa.capa = 0;
nfa.metric1 = met1;
nfa.metric2 = met2;
nfa.oa = oa;
nfa.oa = NULL;
nfa.ar = nf1->n.ar;
nfa.nh = nh;
nfa.ifa = nhi;
@@ -941,7 +943,7 @@ again1:
{
if ((ifa->type == OSPF_IT_VLINK) && ipa_equal(ifa->vip, nf->n.nh))
{
if ((en = ospf_hash_find(ifa->voa->gr, ifa->vid, ifa->vid, LSA_T_RT)) &&
if ((en = ospf_hash_find(po->gr, ifa->voa->areaid, ifa->vid, ifa->vid, LSA_T_RT)) &&
(!ipa_equal(en->nh, IPA_NONE)))
{
a0.gw = en->nh;