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Diffstat (limited to 'proto/ospf/topology.c')
-rw-r--r--proto/ospf/topology.c99
1 files changed, 59 insertions, 40 deletions
diff --git a/proto/ospf/topology.c b/proto/ospf/topology.c
index 8f64c4ca..cadf4eaa 100644
--- a/proto/ospf/topology.c
+++ b/proto/ospf/topology.c
@@ -168,9 +168,6 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 *length)
struct ospf_lsa_rt_link *ln;
struct ospf_neighbor *neigh;
- DBG("%s: Originating RT_lsa body for area %R.\n", po->proto.name,
- oa->areaid);
-
ASSERT(po->lsab_used == 0);
rt = lsab_allocz(po, sizeof(struct ospf_lsa_rt));
@@ -322,9 +319,6 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 *length)
struct ospf_lsa_rt *rt;
struct ospf_neighbor *neigh;
- DBG("%s: Originating RT_lsa body for area %R.\n", po->proto.name,
- oa->areaid);
-
ASSERT(po->lsab_used == 0);
rt = lsab_allocz(po, sizeof(struct ospf_lsa_rt));
@@ -411,7 +405,7 @@ originate_rt_lsa(struct ospf_area *oa)
u32 rid = po->proto.cf->global->router_id;
void *body;
- OSPF_TRACE(D_EVENTS, "Originating RT_lsa for area %R.", oa->areaid);
+ OSPF_TRACE(D_EVENTS, "Originating router-LSA for area %R", oa->areaid);
lsa.age = 0;
lsa.type = LSA_T_RT;
@@ -522,7 +516,7 @@ originate_net_lsa(struct ospf_iface *ifa)
struct proto *p = &po->proto;
void *body;
- OSPF_TRACE(D_EVENTS, "Originating Net lsa for iface \"%s\".",
+ OSPF_TRACE(D_EVENTS, "Originating network-LSA for iface %s",
ifa->iface->name);
lsa.age = 0;
@@ -554,7 +548,7 @@ flush_net_lsa(struct ospf_iface *ifa)
if (ifa->net_lsa == NULL)
return;
- OSPF_TRACE(D_EVENTS, "Deleting Net lsa for iface \"%s\".",
+ OSPF_TRACE(D_EVENTS, "Flushing network-LSA for iface %s",
ifa->iface->name);
ifa->net_lsa->lsa.sn += 1;
ifa->net_lsa->lsa.age = LSA_MAXAGE;
@@ -685,14 +679,14 @@ originate_sum_lsa(struct ospf_area *oa, struct fib_node *fn, int type, int metri
if (type == ORT_NET)
{
- OSPF_TRACE(D_EVENTS, "Originating Net-Summary-LSA for %I/%d (metric %d).",
+ OSPF_TRACE(D_EVENTS, "Originating summary-LSA for %I/%d (metric %d)",
fn->prefix, fn->pxlen, metric);
body = originate_sum_net_lsa_body(po, &lsa.length, fn, metric);
}
else
{
- OSPF_TRACE(D_EVENTS, "Originating RT-Summary-LSA for %R (metric %d).",
+ OSPF_TRACE(D_EVENTS, "Originating summary-LSA for %R (metric %d)",
lsa.id, metric);
body = originate_sum_rt_lsa_body(po, &lsa.length, lsa.id, metric, options);
@@ -734,7 +728,7 @@ flush_sum_lsa(struct ospf_area *oa, struct fib_node *fn, int type)
en->lsa.sn = LSA_MAXSEQNO;
lsasum_calculate(&en->lsa, sum);
- OSPF_TRACE(D_EVENTS, "Flushing summary lsa. (id=%R, type=%d)",
+ OSPF_TRACE(D_EVENTS, "Flushing summary-LSA (id=%R, type=%d)",
en->lsa.id, en->lsa.type);
ospf_lsupd_flood(po, NULL, NULL, &en->lsa, oa->areaid, 1);
if (can_flush_lsa(po)) flush_lsa(en, po);
@@ -879,15 +873,15 @@ void
originate_ext_lsa(net * n, rte * e, struct proto_ospf *po,
struct ea_list *attrs)
{
+ struct proto *p = &po->proto;
struct ospf_lsa_header lsa;
u32 rid = po->proto.cf->global->router_id;
struct top_hash_entry *en = NULL;
void *body;
- struct proto *p = &po->proto;
struct ospf_area *oa;
- OSPF_TRACE(D_EVENTS, "Originating Ext lsa for %I/%d.", n->n.prefix,
- n->n.pxlen);
+ OSPF_TRACE(D_EVENTS, "Originating AS-external-LSA for %I/%d",
+ n->n.prefix, n->n.pxlen);
lsa.age = 0;
lsa.type = LSA_T_EXT;
@@ -924,10 +918,14 @@ originate_ext_lsa(net * n, rte * e, struct proto_ospf *po,
void
flush_ext_lsa(net *n, struct proto_ospf *po)
{
+ struct proto *p = &po->proto;
u32 rid = po->proto.cf->global->router_id;
struct ospf_area *oa;
struct top_hash_entry *en;
+ OSPF_TRACE(D_EVENTS, "Flushing AS-external-LSA for %I/%d",
+ n->n.prefix, n->n.pxlen);
+
/* FIXME proper handling of LSA IDs and check for the same network */
u32 lsaid = ipa_to_lsaid(n->n.prefix);
@@ -987,7 +985,7 @@ originate_link_lsa(struct ospf_iface *ifa)
void *body;
/* FIXME check for vlink and skip that? */
- OSPF_TRACE(D_EVENTS, "Originating Link_lsa for iface %s.", ifa->iface->name);
+ OSPF_TRACE(D_EVENTS, "Originating link-LSA for iface %s", ifa->iface->name);
lsa.age = 0;
lsa.type = LSA_T_LINK;
@@ -1000,6 +998,10 @@ originate_link_lsa(struct ospf_iface *ifa)
lsasum_calculate(&lsa, body);
ifa->link_lsa = lsa_install_new(po, &lsa, dom, body);
ospf_lsupd_flood(po, NULL, NULL, &lsa, dom, 1);
+
+ /* Just to be sure to not forget on our link LSA */
+ if (ifa->state == OSPF_IS_DR)
+ schedule_net_lsa(ifa);
}
void
@@ -1050,6 +1052,7 @@ originate_prefix_rt_lsa_body(struct ospf_area *oa, u16 *length)
if (((a->pxlen < MAX_PREFIX_LENGTH) && net_lsa) ||
(a->flags & IA_SECONDARY) ||
(a->flags & IA_UNNUMBERED) ||
+ (a->scope <= SCOPE_LINK) ||
configured_stubnet(oa, a))
continue;
@@ -1081,14 +1084,17 @@ originate_prefix_rt_lsa_body(struct ospf_area *oa, u16 *length)
void
originate_prefix_rt_lsa(struct ospf_area *oa)
{
- struct ospf_lsa_header lsa;
struct proto_ospf *po = oa->po;
+ struct proto *p = &po->proto;
u32 rid = po->proto.cf->global->router_id;
+ struct ospf_lsa_header lsa;
void *body;
+ OSPF_TRACE(D_EVENTS, "Originating router prefix-LSA for area %R", oa->areaid);
+
lsa.age = 0;
lsa.type = LSA_T_PREFIX;
- lsa.id = 1 << 31;
+ lsa.id = 0;
lsa.rt = rid;
lsa.sn = oa->pxr_lsa ? (oa->pxr_lsa->lsa.sn + 1) : LSA_INITSEQNO;
u32 dom = oa->areaid;
@@ -1128,12 +1134,14 @@ prefix_same(u32 *b1, u32 *b2)
static inline u32 *
prefix_advance(u32 *buf)
{
- return buf + prefix_space(buf);
+ int pxl = *buf >> 24;
+ return buf + IPV6_PREFIX_WORDS(pxl);
}
static void
-add_prefix(struct proto_ospf *po, u32 *px, u32 *pxl, int *pxc)
+add_prefix(struct proto_ospf *po, u32 *px, int offset, int *pxc)
{
+ u32 *pxl = lsab_offset(po, offset);
int i;
for (i = 0; i < *pxc; i++)
{
@@ -1154,19 +1162,31 @@ add_prefix(struct proto_ospf *po, u32 *px, u32 *pxl, int *pxc)
(*pxc)++;
}
+static void
+add_link_lsa(struct proto_ospf *po, struct top_hash_entry *en, int offset, int *pxc)
+{
+ struct ospf_lsa_link *ll = en->lsa_body;
+ u32 *pxb = ll->rest;
+ int j;
+
+ for (j = 0; j < ll->pxcount; j++)
+ {
+ add_prefix(po, pxb, offset, pxc);
+ pxb = prefix_advance(pxb);
+ }
+}
+
+
static void *
originate_prefix_net_lsa_body(struct ospf_iface *ifa, u16 *length)
{
struct proto_ospf *po = ifa->oa->po;
struct ospf_lsa_prefix *lp;
- struct ospf_lsa_link *ll;
struct ospf_neighbor *n;
struct top_hash_entry *en;
u32 rid = po->proto.cf->global->router_id;
- u32 *pxb;
- int i, j, offset;
-
+ int pxc, offset;
ASSERT(po->lsab_used == 0);
lp = lsab_allocz(po, sizeof(struct ospf_lsa_prefix));
@@ -1175,26 +1195,20 @@ originate_prefix_net_lsa_body(struct ospf_iface *ifa, u16 *length)
lp->ref_rt = rid;
lp = NULL; /* buffer might be reallocated later */
- i = 0;
+ pxc = 0;
offset = po->lsab_used;
- /* Find all Link LSA associated with the link and merge their prefixes */
+ /* Find all Link LSAs associated with the link and merge their prefixes */
+ if (ifa->link_lsa)
+ add_link_lsa(po, ifa->link_lsa, offset, &pxc);
+
WALK_LIST(n, ifa->neigh_list)
if ((n->state == NEIGHBOR_FULL) &&
(en = ospf_hash_find(po->gr, ifa->iface->index, n->iface_id, n->rid, LSA_T_LINK)))
- {
- ll = en->lsa_body;
- pxb = ll->rest;
-
- for (j = 0; j < ll->pxcount; j++)
- {
- add_prefix(po, pxb, lsab_offset(po, offset), &i);
- pxb = prefix_advance(pxb);
- }
- }
+ add_link_lsa(po, en, offset, &pxc);
lp = po->lsab;
- lp->pxcount = i;
+ lp->pxcount = pxc;
*length = po->lsab_used + sizeof(struct ospf_lsa_header);
return lsab_flush(po);
}
@@ -1202,11 +1216,15 @@ originate_prefix_net_lsa_body(struct ospf_iface *ifa, u16 *length)
void
originate_prefix_net_lsa(struct ospf_iface *ifa)
{
- struct ospf_lsa_header lsa;
struct proto_ospf *po = ifa->oa->po;
+ struct proto *p = &po->proto;
u32 rid = po->proto.cf->global->router_id;
+ struct ospf_lsa_header lsa;
void *body;
+ OSPF_TRACE(D_EVENTS, "Originating network prefix-LSA for iface %s",
+ ifa->iface->name);
+
lsa.age = 0;
lsa.type = LSA_T_PREFIX;
lsa.id = ifa->iface->index;
@@ -1231,8 +1249,9 @@ flush_prefix_net_lsa(struct ospf_iface *ifa)
if (en == NULL)
return;
- OSPF_TRACE(D_EVENTS, "Flushing Net Prefix lsa for iface \"%s\".",
+ OSPF_TRACE(D_EVENTS, "Flushing network prefix-LSA for iface %s",
ifa->iface->name);
+
en->lsa.sn += 1;
en->lsa.age = LSA_MAXAGE;
lsasum_calculate(&en->lsa, en->lsa_body);
@@ -1283,7 +1302,7 @@ ospf_top_hash_u32(u32 a)
static inline unsigned
ospf_top_hash(struct top_graph *f, u32 domain, u32 lsaid, u32 rtrid, u32 type)
{
- /* In OSPFv2, we don't know Router ID when looking for network lsas.
+ /* In OSPFv2, we don't know Router ID when looking for network LSAs.
dirty patch to make rt table calculation work. */
return (ospf_top_hash_u32(lsaid) + type +
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 07:01:49 +0000