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ospf6d: fix display of unknown LSAs in show ipv6 ospf6 database command

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When an unknown LSA is in the database and the user issues the
"show ipv6 ospf6 database" command there is a crash.  The code currently
doesn't properly handle display of unknown LSAs.

Signed-off-by: Lynne Morrison <lynne@voltaio.net>
This commit is contained in:
lynne 2021-02-23 12:07:28 -05:00
parent 68009c04f3
commit 3e67830c5f
1 changed files with 15 additions and 6 deletions
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21
ospf6d/ospf6_lsa.c
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@ -145,7 +145,7 @@ const char *ospf6_lstype_short_name(uint16_t type)
const struct ospf6_lsa_handler *handler;
handler = ospf6_get_lsa_handler(type);
if (handler && handler != &unknown_handler)
if (handler)
return handler->lh_short_name;
snprintf(buf, sizeof(buf), "0x%04hx", ntohs(type));
@ -420,9 +420,10 @@ void ospf6_lsa_show_summary(struct vty *vty, struct ospf6_lsa *lsa,
if (use_json)
json_obj = json_object_new_object();
if ((type == OSPF6_LSTYPE_INTER_PREFIX)
|| (type == OSPF6_LSTYPE_INTER_ROUTER)
|| (type == OSPF6_LSTYPE_AS_EXTERNAL)) {
switch (type) {
case OSPF6_LSTYPE_INTER_PREFIX:
case OSPF6_LSTYPE_INTER_ROUTER:
case OSPF6_LSTYPE_AS_EXTERNAL:
if (use_json) {
json_object_string_add(
json_obj, "type",
@ -447,7 +448,13 @@ void ospf6_lsa_show_summary(struct vty *vty, struct ospf6_lsa *lsa,
(unsigned long)ntohl(lsa->header->seqnum),
handler->lh_get_prefix_str(lsa, buf,
sizeof(buf), 0));
} else if (type != OSPF6_LSTYPE_UNKNOWN) {
break;
case OSPF6_LSTYPE_ROUTER:
case OSPF6_LSTYPE_NETWORK:
case OSPF6_LSTYPE_GROUP_MEMBERSHIP:
case OSPF6_LSTYPE_TYPE_7:
case OSPF6_LSTYPE_LINK:
case OSPF6_LSTYPE_INTRA_PREFIX:
while (handler->lh_get_prefix_str(lsa, buf, sizeof(buf), cnt)
!= NULL) {
if (use_json) {
@ -481,7 +488,8 @@ void ospf6_lsa_show_summary(struct vty *vty, struct ospf6_lsa *lsa,
}
if (use_json)
json_object_free(json_obj);
} else {
break;
default:
if (use_json) {
json_object_string_add(
json_obj, "type",
@ -500,6 +508,7 @@ void ospf6_lsa_show_summary(struct vty *vty, struct ospf6_lsa *lsa,
ospf6_lstype_short_name(lsa->header->type), id,
adv_router, ospf6_lsa_age_current(lsa),
(unsigned long)ntohl(lsa->header->seqnum));
break;
}
}