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-rw-r--r--proto/ospf/ospf.c213
1 files changed, 213 insertions, 0 deletions
diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index b382df0..1fce709 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -73,6 +73,7 @@
* and conserves memory.
*/
+#include <stdlib.h>
#include "ospf.h"
static int ospf_rte_better(struct rte *new, struct rte *old);
@@ -982,6 +983,218 @@ ospf_sh_iface(struct proto *p, char *iff)
cli_msg(0, "");
}
+/* First we want to separate network-LSAs and other LSAs (because network-LSAs
+ * will be presented as network nodes and other LSAs together as router nodes)
+ * Network-LSAs are sorted according to network prefix, other LSAs are sorted
+ * according to originating router id (to get all LSA needed to represent one
+ * router node together). Then, according to LSA type, ID and age.
+ */
+static int
+he_compare(const void *p1, const void *p2)
+{
+ struct top_hash_entry * he1 = * (struct top_hash_entry **) p1;
+ struct top_hash_entry * he2 = * (struct top_hash_entry **) p2;
+ struct ospf_lsa_header *lsa1 = &(he1->lsa);
+ struct ospf_lsa_header *lsa2 = &(he2->lsa);
+ int nt1 = (lsa1->type == LSA_T_NET);
+ int nt2 = (lsa2->type == LSA_T_NET);
+
+ if (he1->oa->areaid != he2->oa->areaid)
+ return he1->oa->areaid - he2->oa->areaid;
+
+ if (nt1 != nt2)
+ return nt1 - nt2;
+
+ if (nt1)
+ {
+ // we are cheating for now
+ if (lsa1->id != lsa2->id)
+ return lsa1->id - lsa2->id;
+
+ return lsa1->age - lsa2->age;
+ }
+ else
+ {
+ if (lsa1->rt != lsa2->rt)
+ return lsa1->rt - lsa2->rt;
+
+ if (lsa1->type != lsa2->type)
+ return lsa1->type - lsa2->type;
+
+ if (lsa1->id != lsa2->id)
+ return lsa1->id - lsa2->id;
+
+ return lsa1->age - lsa2->age;
+ }
+}
+
+static inline void
+show_lsa_router(struct top_hash_entry *he)
+{
+ struct ospf_lsa_header *lsa = &(he->lsa);
+ struct ospf_lsa_rt *rt = he->lsa_body;
+ struct ospf_lsa_rt_link *rr = (struct ospf_lsa_rt_link *) (rt + 1);
+ u32 i;
+
+ for (i = 0; i < rt->links; i++)
+ if (rr[i].type == LSART_PTP)
+ cli_msg(-1016, "\t\trouter %I metric %u ", rr[i].id, rr[i].metric);
+
+ for (i = 0; i < rt->links; i++)
+ if (rr[i].type == LSART_NET)
+ {
+ struct proto_ospf *po = he->oa->po;
+ struct top_hash_entry *net_he = ospf_hash_find(po->gr, he->oa->areaid, rr[i].id, rr[i].id, LSA_T_NET);
+ if (net_he)
+ {
+ struct ospf_lsa_header *net_lsa = &(net_he->lsa);
+ struct ospf_lsa_net *net_ln = net_he->lsa_body;
+ cli_msg(-1016, "\t\tnetwork %I/%d metric %u ", ipa_and(ipa_from_u32(net_lsa->id), net_ln->netmask), ipa_mklen(net_ln->netmask), rr[i].metric);
+ }
+ else
+ cli_msg(-1016, "\t\tnetwork ??? metric %u ", rr[i].id, ipa_mklen(rr[i].data), rr[i].metric);
+ }
+
+ for (i = 0; i < rt->links; i++)
+ if (rr[i].type == LSART_STUB)
+ cli_msg(-1016, "\t\tstubnet %I/%d metric %u ", rr[i].id, ipa_mklen(rr[i].data), rr[i].metric);
+
+ for (i = 0; i < rt->links; i++)
+ if (rr[i].type == LSART_VLNK)
+ cli_msg(-1016, "\t\tvlink %I metric %u ", rr[i].id, rr[i].metric);
+}
+
+static inline void
+show_lsa_network(struct top_hash_entry *he)
+{
+ struct ospf_lsa_header *lsa = &(he->lsa);
+ struct ospf_lsa_net *ln = he->lsa_body;
+ u32 *rts = (u32 *) (ln + 1);
+ u32 max = (lsa->length - sizeof(struct ospf_lsa_header) - sizeof(struct ospf_lsa_net)) / sizeof(u32);
+ u32 i;
+
+ cli_msg(-1016, "");
+ cli_msg(-1016, "\tnetwork %I/%d", ipa_and(ipa_from_u32(lsa->id), ln->netmask), ipa_mklen(ln->netmask));
+ cli_msg(-1016, "\t\tdr %I", lsa->rt);
+
+ for (i = 0; i < max; i++)
+ cli_msg(-1016, "\t\trouter %I", rts[i]);
+}
+
+static inline void
+show_lsa_sum_net(struct top_hash_entry *he)
+{
+ struct ospf_lsa_header *lsa = &(he->lsa);
+ struct ospf_lsa_sum *sm = he->lsa_body;
+
+ cli_msg(-1016, "\t\txnetwork %I/%d", ipa_and(ipa_from_u32(lsa->id), sm->netmask), ipa_mklen(sm->netmask));
+}
+
+static inline void
+show_lsa_sum_rt(struct top_hash_entry *he)
+{
+ cli_msg(-1016, "\t\txrouter %I", he->lsa.id);
+}
+
+
+static inline void
+show_lsa_external(struct top_hash_entry *he)
+{
+ struct ospf_lsa_header *lsa = &(he->lsa);
+ struct ospf_lsa_ext *ext = he->lsa_body;
+ struct ospf_lsa_ext_tos *et = (struct ospf_lsa_ext_tos *) (ext + 1);
+
+ char str_via[STD_ADDRESS_P_LENGTH + 8] = "";
+ char str_tag[16] = "";
+
+ if (et->fwaddr)
+ bsprintf(str_via, " via %I", et->fwaddr);
+
+ if (et->tag)
+ bsprintf(str_tag, " tag %08x", et->tag);
+
+ cli_msg(-1016, "\t\texternal %I/%d metric%s %u%s%s",
+ ipa_and(ipa_from_u32(lsa->id), ext->netmask),
+ ipa_mklen(ext->netmask), et->etm.etos.ebit ? "2" : "",
+ et->etm.metric & METRIC_MASK, str_via, str_tag);
+}
+
+
+void
+ospf_sh_state(struct proto *p, int verbose)
+{
+ struct proto_ospf *po = (struct proto_ospf *) p;
+ struct top_graph *f = po->gr;
+ unsigned int i, j;
+ u32 last_rt = 0xFFFFFFFF;
+ u32 last_area = 0xFFFFFFFF;
+
+ if (p->proto_state != PS_UP)
+ {
+ cli_msg(-1016, "%s: is not up", p->name);
+ cli_msg(0, "");
+ return;
+ }
+
+ struct top_hash_entry *hea[f->hash_entries];
+ struct top_hash_entry *he;
+
+ j = 0;
+ for (i = 0; i < f->hash_size; i++)
+ for (he = f->hash_table[i]; he != NULL; he = he->next)
+ hea[j++] = he;
+
+ if (j == f->hash_size)
+ die("Fatal mismatch");
+
+ qsort(hea, j, sizeof(struct top_hash_entry *), he_compare);
+
+ for (i = 0; i < j; i++)
+ {
+ if ((verbose == 0) && (hea[i]->lsa.type > LSA_T_NET))
+ continue;
+
+ if (last_area != hea[i]->oa->areaid)
+ {
+ cli_msg(-1016, "");
+ cli_msg(-1016, "area %I", hea[i]->oa->areaid);
+ last_area = hea[i]->oa->areaid;
+ last_rt = 0xFFFFFFFF;
+ }
+
+ if ((hea[i]->lsa.rt != last_rt) && (hea[i]->lsa.type != LSA_T_NET))
+ {
+ cli_msg(-1016, "");
+ cli_msg(-1016, (hea[i]->lsa.type != LSA_T_EXT) ? "\trouter %I" : "\txrouter %I", hea[i]->lsa.rt);
+ last_rt = hea[i]->lsa.rt;
+ }
+
+ switch (hea[i]->lsa.type)
+ {
+ case LSA_T_RT:
+ show_lsa_router(hea[i]);
+ break;
+
+ case LSA_T_NET:
+ show_lsa_network(hea[i]);
+ break;
+
+ case LSA_T_SUM_NET:
+ show_lsa_sum_net(hea[i]);
+ break;
+
+ case LSA_T_SUM_RT:
+ show_lsa_sum_rt(hea[i]);
+ break;
+ case LSA_T_EXT:
+ show_lsa_external(hea[i]);
+ break;
+ }
+ }
+
+ cli_msg(0, "");
+}
+
struct protocol proto_ospf = {
name:"OSPF",
template:"ospf%d",
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 22:15:10 +0100