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Merge pull request #1332 from chiragshah6/ospf_vrf_dev

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ospf6d: Handle lsupdate upto max ospf6 payload
This commit is contained in:
Renato Westphal 2017-10-18 23:46:48 -02:00 committed by GitHub
commit 61f07c9fa2
2 changed files with 106 additions and 31 deletions
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134
ospf6d/ospf6_message.c
View File

@ -1199,8 +1199,10 @@ static unsigned ospf6_packet_examin(struct ospf6_header *oh,
if (bytesonwire != ntohs(oh->length)) {
if (IS_OSPF6_DEBUG_MESSAGE(OSPF6_MESSAGE_TYPE_UNKNOWN, RECV))
zlog_debug(
"%s: packet length error (%u real, %u declared)",
__func__, bytesonwire, ntohs(oh->length));
"%s: %s packet length error (%u real, %u declared)",
__func__, lookup_msg(ospf6_message_type_str,
oh->type, NULL),
bytesonwire, ntohs(oh->length));
return MSG_NG;
}
/* version check */
@ -1971,6 +1973,32 @@ int ospf6_lsreq_send(struct thread *thread)
return 0;
}
static void ospf6_send_lsupdate(struct ospf6_neighbor *on,
struct ospf6_interface *oi,
struct ospf6_header *oh)
{
if (on) {
if ((on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT) ||
(on->ospf6_if->state == OSPF6_INTERFACE_DR) ||
(on->ospf6_if->state == OSPF6_INTERFACE_BDR)) {
ospf6_send(on->ospf6_if->linklocal_addr,
&allspfrouters6, on->ospf6_if, oh);
} else {
ospf6_send(on->ospf6_if->linklocal_addr,
&on->linklocal_addr, on->ospf6_if, oh);
}
} else if (oi) {
if ((oi->state == OSPF6_INTERFACE_POINTTOPOINT) ||
(oi->state == OSPF6_INTERFACE_DR) ||
(oi->state == OSPF6_INTERFACE_BDR)) {
ospf6_send(oi->linklocal_addr, &allspfrouters6, oi, oh);
} else {
ospf6_send(oi->linklocal_addr, &alldrouters6, oi, oh);
}
}
}
int ospf6_lsupdate_send_neighbor(struct thread *thread)
{
struct ospf6_neighbor *on;
@ -2007,8 +2035,22 @@ int ospf6_lsupdate_send_neighbor(struct thread *thread)
/* MTU check */
if ((p - sendbuf + (unsigned int)OSPF6_LSA_SIZE(lsa->header))
> ospf6_packet_max(on->ospf6_if)) {
ospf6_lsdb_lsa_unlock(lsa);
break;
if (lsa_cnt) {
oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE;
oh->length = htons(p - sendbuf);
lsupdate->lsa_number = htonl(lsa_cnt);
ospf6_send_lsupdate(on, NULL, oh);
memset(sendbuf, 0, iobuflen);
oh = (struct ospf6_header *)sendbuf;
lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh
+ sizeof(struct ospf6_header));
p = (u_char *)((caddr_t)lsupdate
+ sizeof(struct ospf6_lsupdate));
lsa_cnt = 0;
}
}
ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay);
@ -2024,15 +2066,7 @@ int ospf6_lsupdate_send_neighbor(struct thread *thread)
oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE;
oh->length = htons(p - sendbuf);
lsupdate->lsa_number = htonl(lsa_cnt);
if ((on->ospf6_if->state == OSPF6_INTERFACE_POINTTOPOINT)
|| (on->ospf6_if->state == OSPF6_INTERFACE_DR)
|| (on->ospf6_if->state == OSPF6_INTERFACE_BDR))
ospf6_send(on->ospf6_if->linklocal_addr,
&allspfrouters6, on->ospf6_if, oh);
else
ospf6_send(on->ospf6_if->linklocal_addr,
&on->linklocal_addr, on->ospf6_if, oh);
ospf6_send_lsupdate(on, NULL, oh);
}
/* The addresses used for retransmissions are different from those sent
@ -2050,8 +2084,30 @@ int ospf6_lsupdate_send_neighbor(struct thread *thread)
/* MTU check */
if ((p - sendbuf + (unsigned int)OSPF6_LSA_SIZE(lsa->header))
> ospf6_packet_max(on->ospf6_if)) {
ospf6_lsdb_lsa_unlock(lsa);
break;
if (lsa_cnt) {
oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE;
oh->length = htons(p - sendbuf);
lsupdate->lsa_number = htonl(lsa_cnt);
if (on->ospf6_if->state ==
OSPF6_INTERFACE_POINTTOPOINT) {
ospf6_send(on->ospf6_if->linklocal_addr,
&allspfrouters6,
on->ospf6_if, oh);
} else {
ospf6_send(on->ospf6_if->linklocal_addr,
&on->linklocal_addr,
on->ospf6_if, oh);
}
memset(sendbuf, 0, iobuflen);
oh = (struct ospf6_header *)sendbuf;
lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh
+ sizeof(struct ospf6_header));
p = (u_char *)((caddr_t)lsupdate +
sizeof(struct ospf6_lsupdate));
lsa_cnt = 0;
}
}
ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay);
@ -2123,8 +2179,24 @@ int ospf6_lsupdate_send_interface(struct thread *thread)
/* MTU check */
if ((p - sendbuf + ((unsigned int)OSPF6_LSA_SIZE(lsa->header)))
> ospf6_packet_max(oi)) {
ospf6_lsdb_lsa_unlock(lsa);
break;
if (lsa_cnt) {
oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE;
oh->length = htons(p - sendbuf);
lsupdate->lsa_number = htonl(lsa_cnt);
ospf6_send_lsupdate(NULL, oi, oh);
zlog_debug("%s: LSUpdate length %d",
__PRETTY_FUNCTION__, ntohs(oh->length));
memset(sendbuf, 0, iobuflen);
oh = (struct ospf6_header *)sendbuf;
lsupdate = (struct ospf6_lsupdate *)((caddr_t)oh
+ sizeof(struct ospf6_header));
p = (u_char *)((caddr_t)lsupdate
+ sizeof(struct ospf6_lsupdate));
lsa_cnt = 0;
}
}
ospf6_lsa_age_update_to_send(lsa, oi->transdelay);
@ -2137,17 +2209,11 @@ int ospf6_lsupdate_send_interface(struct thread *thread)
}
if (lsa_cnt) {
lsupdate->lsa_number = htonl(lsa_cnt);
oh->type = OSPF6_MESSAGE_TYPE_LSUPDATE;
oh->length = htons(p - sendbuf);
lsupdate->lsa_number = htonl(lsa_cnt);
if ((oi->state == OSPF6_INTERFACE_POINTTOPOINT)
|| (oi->state == OSPF6_INTERFACE_DR)
|| (oi->state == OSPF6_INTERFACE_BDR))
ospf6_send(oi->linklocal_addr, &allspfrouters6, oi, oh);
else
ospf6_send(oi->linklocal_addr, &alldrouters6, oi, oh);
ospf6_send_lsupdate(NULL, oi, oh);
}
if (oi->lsupdate_list->count > 0) {
@ -2193,12 +2259,20 @@ int ospf6_lsack_send_neighbor(struct thread *thread)
> ospf6_packet_max(on->ospf6_if)) {
/* if we run out of packet size/space here,
better to try again soon. */
THREAD_OFF(on->thread_send_lsack);
thread_add_event(master, ospf6_lsack_send_neighbor, on,
0, &on->thread_send_lsack);
if (lsa_cnt) {
oh->type = OSPF6_MESSAGE_TYPE_LSACK;
oh->length = htons(p - sendbuf);
ospf6_lsdb_lsa_unlock(lsa);
break;
ospf6_send(on->ospf6_if->linklocal_addr,
&on->linklocal_addr,
on->ospf6_if, oh);
memset(sendbuf, 0, iobuflen);
oh = (struct ospf6_header *)sendbuf;
p = (u_char *)((caddr_t)oh +
sizeof(struct ospf6_header));
lsa_cnt = 0;
}
}
ospf6_lsa_age_update_to_send(lsa, on->ospf6_if->transdelay);

3
ospf6d/ospf6_spf.c
View File

@ -240,7 +240,8 @@ static char *ospf6_lsdesc_backlink(struct ospf6_lsa *lsa, caddr_t lsdesc,
}
if (IS_OSPF6_DEBUG_SPF(PROCESS))
zlog_debug(" Backlink %s", (found ? "OK" : "FAIL"));
zlog_debug("Vertex %s Lsa %s Backlink %s", v->name, lsa->name,
(found ? "OK" : "FAIL"));
return found;
}