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This commit is contained in:
Ondrej Filip 2004-06-04 16:55:53 +00:00
parent c76ba51a5f
commit fb9bf6888c
2 changed files with 84 additions and 86 deletions
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43
proto/ospf/lsack.c
View file

@ -15,6 +15,7 @@ char *s_queue[]={ "direct", "delayed" };
* Note, that h is in network endianity!
* =====================================
*/
void
ospf_lsack_enqueue(struct ospf_neighbor *n, struct ospf_lsa_header *h,
struct proto *p, int queue)
@ -24,8 +25,8 @@ ospf_lsack_enqueue(struct ospf_neighbor *n,struct ospf_lsa_header *h,
no = mb_alloc(n->pool, sizeof(struct lsah_n));
memcpy(&no->lsa, h, sizeof(struct ospf_lsa_header));
add_tail(&n->ackl[queue], NODE no);
DBG("Adding (%s) ack for %I, ID: %I, RT: %I, Type: %u\n", s_queue[queue], n->rid,
ntohl(h->id), ntohl(h->rt),h->type);
DBG("Adding (%s) ack for %I, ID: %I, RT: %I, Type: %u\n", s_queue[queue],
n->rid, ntohl(h->id), ntohl(h->rt), h->type);
}
void
@ -40,18 +41,15 @@ ospf_lsack_send(struct ospf_neighbor *n, int queue)
struct ospf_iface *ifa = n->ifa;
struct proto *p = &n->ifa->proto->proto;
if(EMPTY_LIST(n->ackl[queue])) return;
if (EMPTY_LIST(n->ackl[queue]))
return;
OSPF_TRACE(D_PACKETS, "LS ack sent to %I (%s)", n->ip, s_queue[queue]);
if (ifa->type == OSPF_IT_BCAST)
{
sk = ifa->hello_sk;
}
else
{
sk = ifa->ip_sk;
}
pk = (struct ospf_lsack_packet *) sk->tbuf;
op = (struct ospf_packet *) sk->tbuf;
@ -68,37 +66,31 @@ ospf_lsack_send(struct ospf_neighbor *n, int queue)
ntohl((h + i)->rt), (h + i)->type);
rem_node(NODE no);
mb_free(no);
if((i*sizeof(struct ospf_lsa_header)+sizeof(struct ospf_lsack_packet)+SIPH)>
n->ifa->iface->mtu)
if ((i * sizeof(struct ospf_lsa_header) +
sizeof(struct ospf_lsack_packet) + SIPH) > n->ifa->iface->mtu)
{
if (!EMPTY_LIST(n->ackl[queue]))
{
len=sizeof(struct ospf_lsack_packet)+i*sizeof(struct ospf_lsa_header);
len =
sizeof(struct ospf_lsack_packet) +
i * sizeof(struct ospf_lsa_header);
op->length = htons(len);
ospf_pkt_finalize(n->ifa, op);
DBG("Sending and continuing! Len=%u\n", len);
if (ifa->type == OSPF_IT_BCAST)
{
if ((ifa->state == OSPF_IS_DR) || (ifa->state == OSPF_IS_BACKUP))
{
sk_send_to(sk, len, AllSPFRouters, OSPF_PROTO);
}
else
{
sk_send_to(sk, len, AllDRouters, OSPF_PROTO);
}
}
else
{
if ((ifa->state == OSPF_IS_DR) || (ifa->state == OSPF_IS_BACKUP))
{
sk_send_to_agt(sk, len, ifa, NEIGHBOR_EXCHANGE);
}
else
{
sk_send_to_bdr(sk, len, ifa);
}
}
fill_ospf_pkt_hdr(n->ifa, pk, LSACK_P);
i = 0;
@ -145,15 +137,15 @@ ospf_lsack_receive(struct ospf_lsack_packet *ps, struct proto *p,
if ((n = find_neigh(ifa, nrid)) == NULL)
{
OSPF_TRACE(D_PACKETS, "Received LS ack from unknown neigbor! (%I)",
nrid);
OSPF_TRACE(D_PACKETS, "Received LS ack from unknown neigbor! (%I)", nrid);
return;
}
OSPF_TRACE(D_PACKETS, "Received LS ack from %I", n->ip);
ospf_neigh_sm(n, INM_HELLOREC);
if(n->state<NEIGHBOR_EXCHANGE) return;
if (n->state < NEIGHBOR_EXCHANGE)
return;
nolsa = (lenn - sizeof(struct ospf_lsack_packet)) /
sizeof(struct ospf_lsa_header);
@ -170,11 +162,13 @@ ospf_lsack_receive(struct ospf_lsack_packet *ps, struct proto *p,
for (i = 0; i < nolsa; i++)
{
ntohlsah(plsa + i, &lsa);
if((en=ospf_hash_find_header(n->lsrth,&lsa))==NULL) continue;
if ((en = ospf_hash_find_header(n->lsrth, &lsa)) == NULL)
continue;
if (lsa_comp(&lsa, &en->lsa) != CMP_SAME)
{
if((lsa.sn==LSA_MAXSEQNO)&&(lsa.age==LSA_MAXAGE)) continue;
if ((lsa.sn == LSA_MAXSEQNO) && (lsa.age == LSA_MAXAGE))
continue;
OSPF_TRACE(D_PACKETS, "Strange LS acknoledgement from %I", n->ip);
OSPF_TRACE(D_PACKETS, "Id: %I, Rt: %I, Type: %u",
@ -189,7 +183,8 @@ ospf_lsack_receive(struct ospf_lsack_packet *ps, struct proto *p,
DBG("Deleting LS Id: %I RT: %I Type: %u from LS Retl for neighbor %I\n",
lsa.id, lsa.rt, lsa.type, n->rid);
s_rem_node(SNODE en);
if(en->lsa_body!=NULL) mb_free(en->lsa_body);
if (en->lsa_body != NULL)
mb_free(en->lsa_body);
en->lsa_body = NULL;
ospf_hash_delete(n->lsrth, en);
}

5
proto/ospf/lsack.h
View file

@ -9,7 +9,9 @@
#ifndef _BIRD_OSPF_LSACK_H_
#define _BIRD_OSPF_LSACK_H_
struct lsah_n {
struct lsah_n
{
node n;
struct ospf_lsa_header lsa;
};
@ -19,4 +21,5 @@ void ospf_lsack_receive(struct ospf_lsack_packet *ps, struct proto *p,
void ospf_lsack_send(struct ospf_neighbor *n, int queue);
void ospf_lsack_enqueue(struct ospf_neighbor *n, struct ospf_lsa_header *h,
struct proto *p, int queue);
#endif /* _BIRD_OSPF_LSACK_H_ */