/*
* BIRD -- OSPF
*
- * (c) 2000-2004 Ondrej Filip <feela@network.cz>
+ * (c) 2000--2004 Ondrej Filip <feela@network.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include "ospf.h"
/**
- * flood_lsa - send received or generated lsa to the neighbors
+ * ospf_lsupd_flood - send received or generated lsa to the neighbors
* @n: neighbor than sent this lsa (or NULL if generated)
* @hn: LSA header followed by lsa body in network endianity (may be NULL)
* @hh: LSA header in host endianity (must be filled)
*/
int
-flood_lsa(struct ospf_neighbor *n, struct ospf_lsa_header *hn,
- struct ospf_lsa_header *hh, struct proto_ospf *po, struct ospf_iface *iff,
- struct ospf_area *oa, int rtl)
+ospf_lsupd_flood(struct ospf_neighbor *n, struct ospf_lsa_header *hn,
+ struct ospf_lsa_header *hh, struct ospf_iface *iff,
+ struct ospf_area *oa, int rtl)
{
struct ospf_iface *ifa;
struct ospf_neighbor *nn;
struct top_hash_entry *en;
- struct proto *p=&po->proto;
+ struct proto_ospf *po = oa->po;
+ struct proto *p = &po->proto;
int ret, retval = 0;
/* pg 148 */
- WALK_LIST(NODE ifa,po->iface_list)
+ WALK_LIST(NODE ifa, po->iface_list)
{
- if(ifa->stub) continue;
+ if (ifa->stub)
+ continue;
- if(hh->type==LSA_T_EXT)
+ if (hh->type == LSA_T_EXT)
{
- if(ifa->type==OSPF_IT_VLINK) continue;
- if(ifa->oa->stub) continue;
+ if (ifa->type == OSPF_IT_VLINK)
+ continue;
+ if (ifa->oa->stub)
+ continue;
}
else
{
- if(oa->areaid==BACKBONE)
+ if (oa->areaid == BACKBONE)
{
- if((ifa->type!=OSPF_IT_VLINK)&&(ifa->oa!=oa)) continue;
+ if ((ifa->type != OSPF_IT_VLINK) && (ifa->oa != oa))
+ continue;
}
else
{
- if(ifa->oa!=oa) continue;
+ if (ifa->oa != oa)
+ continue;
}
}
- ret=0;
+ ret = 0;
WALK_LIST(NODE nn, ifa->neigh_list)
{
- if(nn->state<NEIGHBOR_EXCHANGE) continue;
- if(nn->state<NEIGHBOR_FULL)
+ if (nn->state < NEIGHBOR_EXCHANGE)
+ continue;
+ if (nn->state < NEIGHBOR_FULL)
{
- if((en=ospf_hash_find_header(nn->lsrqh,hh))!=NULL)
+ if ((en = ospf_hash_find_header(nn->lsrqh, hh)) != NULL)
{
- switch(lsa_comp(hh,&en->lsa))
+ switch (lsa_comp(hh, &en->lsa))
{
- case CMP_OLDER:
- continue;
- break;
- case CMP_SAME:
- s_rem_node(SNODE en);
- if(en->lsa_body!=NULL) mb_free(en->lsa_body);
- en->lsa_body=NULL;
- DBG("Removing from lsreq list for neigh %I\n", nn->rid);
- ospf_hash_delete(nn->lsrqh,en);
- if(EMPTY_SLIST(nn->lsrql)) ospf_neigh_sm(nn, INM_LOADDONE);
- continue;
- break;
- case CMP_NEWER:
- s_rem_node(SNODE en);
- if(en->lsa_body!=NULL) mb_free(en->lsa_body);
- en->lsa_body=NULL;
- DBG("Removing from lsreq list for neigh %I\n", nn->rid);
- ospf_hash_delete(nn->lsrqh,en);
- if(EMPTY_SLIST(nn->lsrql)) ospf_neigh_sm(nn, INM_LOADDONE);
- break;
- default: bug("Bug in lsa_comp?");
+ case CMP_OLDER:
+ continue;
+ break;
+ case CMP_SAME:
+ s_rem_node(SNODE en);
+ if (en->lsa_body != NULL)
+ mb_free(en->lsa_body);
+ en->lsa_body = NULL;
+ DBG("Removing from lsreq list for neigh %I\n", nn->rid);
+ ospf_hash_delete(nn->lsrqh, en);
+ if (EMPTY_SLIST(nn->lsrql))
+ ospf_neigh_sm(nn, INM_LOADDONE);
+ continue;
+ break;
+ case CMP_NEWER:
+ s_rem_node(SNODE en);
+ if (en->lsa_body != NULL)
+ mb_free(en->lsa_body);
+ en->lsa_body = NULL;
+ DBG("Removing from lsreq list for neigh %I\n", nn->rid);
+ ospf_hash_delete(nn->lsrqh, en);
+ if (EMPTY_SLIST(nn->lsrql))
+ ospf_neigh_sm(nn, INM_LOADDONE);
+ break;
+ default:
+ bug("Bug in lsa_comp?");
}
}
}
- if(nn==n) continue;
+ if (nn == n)
+ continue;
- if(rtl)
+ if (rtl)
{
- if((en=ospf_hash_find_header(nn->lsrth, hh))==NULL)
- {
- en=ospf_hash_get_header(nn->lsrth, hh);
- }
- else
- {
- s_rem_node(SNODE en);
- }
- s_add_tail(&nn->lsrtl, SNODE en);
- memcpy(&en->lsa,hh,sizeof(struct ospf_lsa_header));
- DBG("Adding LSA lsrt RT: %I, Id: %I, Type: %u for n: %I\n",
- en->lsa.rt,en->lsa.id, en->lsa.type, nn->ip);
+ if ((en = ospf_hash_find_header(nn->lsrth, hh)) == NULL)
+ {
+ en = ospf_hash_get_header(nn->lsrth, hh);
+ }
+ else
+ {
+ s_rem_node(SNODE en);
+ }
+ s_add_tail(&nn->lsrtl, SNODE en);
+ memcpy(&en->lsa, hh, sizeof(struct ospf_lsa_header));
+ DBG("Adding LSA lsrt RT: %I, Id: %I, Type: %u for n: %I\n",
+ en->lsa.rt, en->lsa.id, en->lsa.type, nn->ip);
}
else
{
- if((en=ospf_hash_find_header(nn->lsrth, hh))!=NULL)
- {
- s_rem_node(SNODE en);
- if(en->lsa_body!=NULL) mb_free(en->lsa_body);
- en->lsa_body=NULL;
- ospf_hash_delete(nn->lsrth, en);
- }
+ if ((en = ospf_hash_find_header(nn->lsrth, hh)) != NULL)
+ {
+ s_rem_node(SNODE en);
+ if (en->lsa_body != NULL)
+ mb_free(en->lsa_body);
+ en->lsa_body = NULL;
+ ospf_hash_delete(nn->lsrth, en);
+ }
}
- ret=1;
+ ret = 1;
}
- if(ret==0) continue; /* pg 150 (2) */
+ if (ret == 0)
+ continue; /* pg 150 (2) */
- if(ifa==iff)
+ if (ifa == iff)
{
- if((n->rid==iff->drid)||n->rid==iff->bdrid) continue; /* pg 150 (3) */
- if(iff->state==OSPF_IS_BACKUP) continue; /* pg 150 (4) */
- retval = 1; /* FIXME !!!!!!!!!!! */
+ if ((n->rid == iff->drid) || n->rid == iff->bdrid)
+ continue; /* pg 150 (3) */
+ if (iff->state == OSPF_IS_BACKUP)
+ continue; /* pg 150 (4) */
+ retval = 1;
}
{
struct ospf_packet *op;
struct ospf_lsa_header *lh;
- if(ifa->type==OSPF_IT_NBMA) sk=ifa->ip_sk;
- else sk=ifa->hello_sk; /* FIXME is this true for PTP? */
+ if (ifa->type == OSPF_IT_NBMA)
+ sk = ifa->ip_sk;
+ else
+ sk = ifa->hello_sk; /* FIXME is this true for PTP? */
- pk=(struct ospf_lsupd_packet *)sk->tbuf;
- op=(struct ospf_packet *)sk->tbuf;
+ pk = (struct ospf_lsupd_packet *) sk->tbuf;
+ op = (struct ospf_packet *) sk->tbuf;
fill_ospf_pkt_hdr(ifa, pk, LSUPD_P);
- pk->lsano=htonl(1);
+ pk->lsano = htonl(1);
- lh = (struct ospf_lsa_header *)(pk+1);
+ lh = (struct ospf_lsa_header *) (pk + 1);
/* Copy LSA into the packet */
- if(hn)
+ if (hn)
{
- memcpy(lh, hn, ntohs(hn->length));
+ memcpy(lh, hn, ntohs(hn->length));
}
else
{
- u8 *help;
+ u8 *help;
struct top_hash_entry *en;
- htonlsah(hh,lh);
- help = (u8 *)(lh+1);
- en = ospf_hash_find_header(oa->gr,hh);
- htonlsab(en->lsa_body,help,hh->type,hh->length
- -sizeof(struct ospf_lsa_header));
+ htonlsah(hh, lh);
+ help = (u8 *) (lh + 1);
+ en = ospf_hash_find_header(oa->gr, hh);
+ htonlsab(en->lsa_body, help, hh->type, hh->length
+ - sizeof(struct ospf_lsa_header));
}
- len = sizeof(struct ospf_lsupd_packet)+ntohs(lh->length);
+ len = sizeof(struct ospf_lsupd_packet) + ntohs(lh->length);
age = ntohs(lh->age);
age += ifa->inftransdelay;
- if( age > LSA_MAXAGE ) age = LSA_MAXAGE;
+ if (age > LSA_MAXAGE)
+ age = LSA_MAXAGE;
lh->age = htons(age);
- op->length=htons(len);
+ op->length = htons(len);
ospf_pkt_finalize(ifa, op);
OSPF_TRACE(D_PACKETS, "LS upd flooded via %s", ifa->iface->name);
- if(ifa->type==OSPF_IT_NBMA)
+ if (ifa->type == OSPF_IT_NBMA)
{
- if((ifa->state==OSPF_IS_BACKUP)||(ifa->state==OSPF_IS_DR))
- sk_send_to_agt(sk ,len, ifa, NEIGHBOR_EXCHANGE);
- else sk_send_to_bdr(sk ,len, ifa);
+ if ((ifa->state == OSPF_IS_BACKUP) || (ifa->state == OSPF_IS_DR))
+ sk_send_to_agt(sk, len, ifa, NEIGHBOR_EXCHANGE);
+ else
+ sk_send_to_bdr(sk, len, ifa);
}
else
{
- if((ifa->state==OSPF_IS_BACKUP)||(ifa->state==OSPF_IS_DR)||
- (ifa->type==OSPF_IT_PTP))
- sk_send_to(sk,len, AllSPFRouters, OSPF_PROTO);
- else sk_send_to(sk,len, AllDRouters, OSPF_PROTO);
+ if ((ifa->state == OSPF_IS_BACKUP) || (ifa->state == OSPF_IS_DR) ||
+ (ifa->type == OSPF_IT_PTP))
+ sk_send_to(sk, len, AllSPFRouters, OSPF_PROTO);
+ else
+ sk_send_to(sk, len, AllDRouters, OSPF_PROTO);
}
}
}
return retval;
}
-void /* I send all I received in LSREQ */
-ospf_lsupd_tx_list(struct ospf_neighbor *n, list *l)
+void /* I send all I received in LSREQ */
+ospf_lsupd_send_list(struct ospf_neighbor *n, list * l)
{
struct l_lsr_head *llsh;
u16 len;
struct top_hash_entry *en;
struct ospf_lsupd_packet *pk;
struct ospf_packet *op;
- struct proto *p=&n->ifa->oa->po->proto;
+ struct proto *p = &n->ifa->oa->po->proto;
void *pktpos;
u8 ii;
- u8 *jj=n->ifa->ip_sk->tbuf;
+ u8 *jj = n->ifa->ip_sk->tbuf;
- if(EMPTY_LIST(*l)) return;
+ if (EMPTY_LIST(*l))
+ return;
- pk=(struct ospf_lsupd_packet *)n->ifa->ip_sk->tbuf;
- op=(struct ospf_packet *)n->ifa->ip_sk->tbuf;
+ pk = (struct ospf_lsupd_packet *) n->ifa->ip_sk->tbuf;
+ op = (struct ospf_packet *) n->ifa->ip_sk->tbuf;
DBG("LSupd: 1st packet\n");
-
+
fill_ospf_pkt_hdr(n->ifa, pk, LSUPD_P);
- len=SIPH+sizeof(struct ospf_lsupd_packet);
- lsano=0;
- pktpos=(pk+1);
+ len = SIPH + sizeof(struct ospf_lsupd_packet);
+ lsano = 0;
+ pktpos = (pk + 1);
WALK_LIST(llsh, *l)
{
- if((en=ospf_hash_find(n->ifa->oa->gr,llsh->lsh.id,llsh->lsh.rt,
- llsh->lsh.type))==NULL) continue; /* Probably flushed LSA */
+ if ((en = ospf_hash_find(n->ifa->oa->gr, llsh->lsh.id, llsh->lsh.rt,
+ llsh->lsh.type)) == NULL)
+ continue; /* Probably flushed LSA */
DBG("Sending ID=%I, Type=%u, RT=%I Sn: 0x%x Age: %u\n",
- llsh->lsh.id, llsh->lsh.type, llsh->lsh.rt, en->lsa.sn, en->lsa.age);
- if(((u32)(len+en->lsa.length))>n->ifa->iface->mtu)
+ llsh->lsh.id, llsh->lsh.type, llsh->lsh.rt, en->lsa.sn, en->lsa.age);
+ if (((u32) (len + en->lsa.length)) > n->ifa->iface->mtu)
{
- pk->lsano=htonl(lsano);
- op->length=htons(len-SIPH);
+ pk->lsano = htonl(lsano);
+ op->length = htons(len - SIPH);
ospf_pkt_finalize(n->ifa, op);
-
- sk_send_to(n->ifa->ip_sk,len-SIPH, n->ip, OSPF_PROTO);
+
+ sk_send_to(n->ifa->ip_sk, len - SIPH, n->ip, OSPF_PROTO);
OSPF_TRACE(D_PACKETS, "LS upd sent to %I (%d LSAs)", n->ip, lsano);
DBG("LSupd: next packet\n");
fill_ospf_pkt_hdr(n->ifa, pk, LSUPD_P);
- len=SIPH+sizeof(struct ospf_lsupd_packet);
- lsano=0;
- pktpos=(pk+1);
+ len = SIPH + sizeof(struct ospf_lsupd_packet);
+ lsano = 0;
+ pktpos = (pk + 1);
}
htonlsah(&(en->lsa), pktpos);
- pktpos=pktpos+sizeof(struct ospf_lsa_header);
+ pktpos = pktpos + sizeof(struct ospf_lsa_header);
htonlsab(en->lsa_body, pktpos, en->lsa.type, en->lsa.length
- -sizeof(struct ospf_lsa_header));
- pktpos=pktpos+en->lsa.length-sizeof(struct ospf_lsa_header);
- len+=en->lsa.length;
+ - sizeof(struct ospf_lsa_header));
+ pktpos = pktpos + en->lsa.length - sizeof(struct ospf_lsa_header);
+ len += en->lsa.length;
lsano++;
}
- if(lsano>0)
+ if (lsano > 0)
{
- pk->lsano=htonl(lsano);
- op->length=htons(len-SIPH);
+ pk->lsano = htonl(lsano);
+ op->length = htons(len - SIPH);
ospf_pkt_finalize(n->ifa, op);
OSPF_TRACE(D_PACKETS, "LS upd sent to %I (%d LSAs)", n->ip, lsano);
- sk_send_to(n->ifa->ip_sk,len-SIPH, n->ip, OSPF_PROTO);
+ sk_send_to(n->ifa->ip_sk, len - SIPH, n->ip, OSPF_PROTO);
}
}
void
ospf_lsupd_receive(struct ospf_lsupd_packet *ps,
- struct ospf_iface *ifa, u16 size)
+ struct ospf_iface *ifa, u16 size)
{
- u32 area,nrid;
- struct ospf_neighbor *n,*ntmp;
+ u32 area, nrid;
+ struct ospf_neighbor *n, *ntmp;
struct ospf_lsa_header *lsa;
struct ospf_area *oa;
- struct proto_ospf *po=ifa->proto;
- struct proto *p = (struct proto *)po;
+ struct proto_ospf *po = ifa->proto;
+ struct proto *p = (struct proto *) po;
u16 length;
u8 i;
int sendreq = 1;
- nrid=ntohl(ps->ospf_packet.routerid);
+ nrid = ntohl(ps->ospf_packet.routerid);
- if((n=find_neigh(ifa, nrid))==NULL)
+ if ((n = find_neigh(ifa, nrid)) == NULL)
{
- OSPF_TRACE(D_PACKETS, "Received lsupd from unknown neighbor! (%I)",
- nrid);
- return ;
+ OSPF_TRACE(D_PACKETS, "Received lsupd from unknown neighbor! (%I)", nrid);
+ return;
}
- if(n->state<NEIGHBOR_EXCHANGE)
+ if (n->state < NEIGHBOR_EXCHANGE)
{
- OSPF_TRACE(D_PACKETS, "Received lsupd in lesser state than EXCHANGE from (%I)",
- n->ip);
+ OSPF_TRACE(D_PACKETS,
+ "Received lsupd in lesser state than EXCHANGE from (%I)",
+ n->ip);
return;
}
- if(size<=(sizeof(struct ospf_lsupd_packet)+sizeof(struct ospf_lsa_header)))
+ if (size <=
+ (sizeof(struct ospf_lsupd_packet) + sizeof(struct ospf_lsa_header)))
{
log(L_WARN "Received lsupd from %I is too short!", n->ip);
return;
OSPF_TRACE(D_PACKETS, "Received LS upd from %I", n->ip);
ospf_neigh_sm(n, INM_HELLOREC); /* Questionable */
- lsa=(struct ospf_lsa_header *)(ps+1);
- area=htonl(ps->ospf_packet.areaid);
- oa=ospf_find_area((struct proto_ospf *)p,area);
+ lsa = (struct ospf_lsa_header *) (ps + 1);
+ area = htonl(ps->ospf_packet.areaid);
+ oa = ospf_find_area((struct proto_ospf *) p, area);
- for(i=0; i<ntohl(ps->lsano); i++,
- lsa=(struct ospf_lsa_header *)(((u8 *)lsa)+ntohs(lsa->length)))
+ for (i = 0; i < ntohl(ps->lsano); i++,
+ lsa = (struct ospf_lsa_header *) (((u8 *) lsa) + ntohs(lsa->length)))
{
struct ospf_lsa_header lsatmp;
struct top_hash_entry *lsadb;
- int diff=((u8 *)lsa)-((u8 *)ps);
+ int diff = ((u8 *) lsa) - ((u8 *) ps);
u16 chsum, lenn = ntohs(lsa->length);
- if(((diff+sizeof(struct ospf_lsa_header))>=size) || ((lenn+diff)>size))
+ if (((diff + sizeof(struct ospf_lsa_header)) >= size)
+ || ((lenn + diff) > size))
{
log(L_WARN "Received lsupd from %I is too short!", n->ip);
ospf_neigh_sm(n, INM_BADLSREQ);
break;
}
- if((lenn<=sizeof(struct ospf_lsa_header))||(lenn!=(4*(lenn/4))))
+ if ((lenn <= sizeof(struct ospf_lsa_header))
+ || (lenn != (4 * (lenn / 4))))
{
log(L_WARN "Received LSA from %I with bad length", n->ip);
ospf_neigh_sm(n, INM_BADLSREQ);
}
/* pg 143 (1) */
- chsum=lsa->checksum;
- if(chsum!=lsasum_check(lsa,NULL,po))
+ chsum = lsa->checksum;
+ if (chsum != lsasum_check(lsa, NULL, po))
{
log(L_WARN "Received bad lsa checksum from %I", n->ip);
continue;
}
/* pg 143 (2) */
- if((lsa->type<LSA_T_RT)||(lsa->type>LSA_T_EXT))
+ if ((lsa->type < LSA_T_RT) || (lsa->type > LSA_T_EXT))
{
log(L_WARN "Unknown LSA type from %I", n->ip);
continue;
}
/* pg 143 (3) */
- if((lsa->type==LSA_T_EXT)&&oa->stub)
+ if ((lsa->type == LSA_T_EXT) && oa->stub)
{
log(L_WARN "Received External LSA in stub area from %I", n->ip);
continue;
}
- ntohlsah(lsa,&lsatmp);
+ ntohlsah(lsa, &lsatmp);
DBG("Update Type: %u ID: %I RT: %I, Sn: 0x%08x Age: %u, Sum: %u\n",
- lsatmp.type, lsatmp.id, lsatmp.rt, lsatmp.sn, lsatmp.age,
- lsatmp.checksum);
+ lsatmp.type, lsatmp.id, lsatmp.rt, lsatmp.sn, lsatmp.age,
+ lsatmp.checksum);
- lsadb=ospf_hash_find_header(oa->gr, &lsatmp);
+ lsadb = ospf_hash_find_header(oa->gr, &lsatmp);
#ifdef LOCAL_DEBUG
- if(lsadb)
+ if (lsadb)
DBG("I have Type: %u ID: %I RT: %I, Sn: 0x%08x Age: %u, Sum: %u\n",
- lsadb->lsa.type, lsadb->lsa.id, lsadb->lsa.rt, lsadb->lsa.sn,
- lsadb->lsa.age, lsadb->lsa.checksum);
+ lsadb->lsa.type, lsadb->lsa.id, lsadb->lsa.rt, lsadb->lsa.sn,
+ lsadb->lsa.age, lsadb->lsa.checksum);
#endif
/* pg 143 (4) */
- if((lsatmp.age==LSA_MAXAGE)&&(lsadb==NULL)&&can_flush_lsa(oa))
+ if ((lsatmp.age == LSA_MAXAGE) && (lsadb == NULL) && can_flush_lsa(oa))
{
ospf_lsack_enqueue(n, lsa, ACKL_DIRECT);
continue;
}
/* pg 144 (5) */
- if((lsadb==NULL)||(lsa_comp(&lsatmp,&lsadb->lsa)==CMP_NEWER))
+ if ((lsadb == NULL) || (lsa_comp(&lsatmp, &lsadb->lsa) == CMP_NEWER))
{
- struct ospf_iface *ift=NULL;
+ struct ospf_iface *ift = NULL;
void *body;
struct ospf_iface *nifa;
int self = (lsatmp.rt == p->cf->global->router_id);
DBG("PG143(5): Received LSA is newer\n");
/* pg 145 (5f) - premature aging of self originated lsa */
- if((!self) && (lsatmp.type==LSA_T_NET))
+ if ((!self) && (lsatmp.type == LSA_T_NET))
{
- WALK_LIST(nifa,po->iface_list)
- {
- if(ipa_compare(nifa->iface->addr->ip,ipa_from_u32(lsatmp.id))==0)
- {
- self = 1;
- break;
- }
- }
+ WALK_LIST(nifa, po->iface_list)
+ {
+ if (ipa_compare(nifa->iface->addr->ip, ipa_from_u32(lsatmp.id)) ==
+ 0)
+ {
+ self = 1;
+ break;
+ }
+ }
}
- if(self)
+ if (self)
{
- struct top_hash_entry *en;
-
- if((lsatmp.age==LSA_MAXAGE)&&(lsatmp.sn==LSA_MAXSEQNO))
- {
- ospf_lsack_enqueue(n, lsa, ACKL_DIRECT);
- continue;
- }
-
- lsatmp.age=LSA_MAXAGE;
- lsatmp.sn=LSA_MAXSEQNO;
- lsa->age=htons(LSA_MAXAGE);
- lsa->sn=htonl(LSA_MAXSEQNO);
- OSPF_TRACE(D_EVENTS, "Premature aging self originated lsa.");
- OSPF_TRACE(D_EVENTS, "Type: %d, Id: %I, Rt: %I",lsatmp.type,
- lsatmp.id, lsatmp.rt);
- lsasum_check(lsa,(lsa+1),po); /* It also calculates chsum! */
- lsatmp.checksum=ntohs(lsa->checksum);
- flood_lsa(NULL,lsa,&lsatmp,po,NULL,oa,0);
- if(en=ospf_hash_find_header(oa->gr,&lsatmp))
- {
- flood_lsa(NULL,NULL,&en->lsa,po,NULL,oa,1);
- }
- continue;
+ struct top_hash_entry *en;
+
+ if ((lsatmp.age == LSA_MAXAGE) && (lsatmp.sn == LSA_MAXSEQNO))
+ {
+ ospf_lsack_enqueue(n, lsa, ACKL_DIRECT);
+ continue;
+ }
+
+ lsatmp.age = LSA_MAXAGE;
+ lsatmp.sn = LSA_MAXSEQNO;
+ lsa->age = htons(LSA_MAXAGE);
+ lsa->sn = htonl(LSA_MAXSEQNO);
+ OSPF_TRACE(D_EVENTS, "Premature aging self originated lsa.");
+ OSPF_TRACE(D_EVENTS, "Type: %d, Id: %I, Rt: %I", lsatmp.type,
+ lsatmp.id, lsatmp.rt);
+ lsasum_check(lsa, (lsa + 1), po); /* It also calculates chsum! */
+ lsatmp.checksum = ntohs(lsa->checksum);
+ ospf_lsupd_flood(NULL, lsa, &lsatmp, NULL, oa, 0);
+ if (en = ospf_hash_find_header(oa->gr, &lsatmp))
+ {
+ ospf_lsupd_flood(NULL, NULL, &en->lsa, NULL, oa, 1);
+ }
+ continue;
}
/* pg 144 (5a) */
- if(lsadb && ((now-lsadb->inst_t)<=MINLSARRIVAL)) /* FIXME: test for flooding? */
+ if (lsadb && ((now - lsadb->inst_t) <= MINLSARRIVAL)) /* FIXME: test for flooding? */
{
- DBG("I got it in less that MINLSARRIVAL\n");
- sendreq = 0;
+ DBG("I got it in less that MINLSARRIVAL\n");
+ sendreq = 0;
continue;
}
-
- if(flood_lsa(n,lsa,&lsatmp,po,ifa,ifa->oa,1)==0)
+
+ if (ospf_lsupd_flood(n, lsa, &lsatmp, ifa, ifa->oa, 1) == 0)
{
- DBG("Wasn't flooded back\n"); /* ps 144(5e), pg 153 */
- if(ifa->state==OSPF_IS_BACKUP)
+ DBG("Wasn't flooded back\n"); /* ps 144(5e), pg 153 */
+ if (ifa->state == OSPF_IS_BACKUP)
{
- if(ifa->drid==n->rid) ospf_lsack_enqueue(n, lsa, ACKL_DELAY);
+ if (ifa->drid == n->rid)
+ ospf_lsack_enqueue(n, lsa, ACKL_DELAY);
}
- else ospf_lsack_enqueue(n, lsa, ACKL_DELAY);
+ else
+ ospf_lsack_enqueue(n, lsa, ACKL_DELAY);
}
/* Remove old from all ret lists */
/* pg 144 (5c) */
- if(lsadb)
- WALK_LIST(NODE ift,po->iface_list)
- WALK_LIST(NODE ntmp,ift->neigh_list)
- {
- struct top_hash_entry *en;
- if(ntmp->state>NEIGHBOR_EXSTART)
- if((en=ospf_hash_find_header(ntmp->lsrth,&lsadb->lsa))!=NULL)
- {
- s_rem_node(SNODE en);
- if(en->lsa_body!=NULL) mb_free(en->lsa_body);
- en->lsa_body=NULL;
- ospf_hash_delete(ntmp->lsrth,en);
- }
- }
-
- if((lsatmp.age==LSA_MAXAGE)&&(lsatmp.sn==LSA_MAXSEQNO)
- &&lsadb&&can_flush_lsa(oa))
+ if (lsadb)
+ WALK_LIST(NODE ift, po->iface_list)
+ WALK_LIST(NODE ntmp, ift->neigh_list)
{
- flush_lsa(lsadb,oa);
- schedule_rtcalc(oa);
- continue;
- } /* FIXME lsack? */
+ struct top_hash_entry *en;
+ if (ntmp->state > NEIGHBOR_EXSTART)
+ if ((en = ospf_hash_find_header(ntmp->lsrth, &lsadb->lsa)) != NULL)
+ {
+ s_rem_node(SNODE en);
+ if (en->lsa_body != NULL)
+ mb_free(en->lsa_body);
+ en->lsa_body = NULL;
+ ospf_hash_delete(ntmp->lsrth, en);
+ }
+ }
+
+ if ((lsatmp.age == LSA_MAXAGE) && (lsatmp.sn == LSA_MAXSEQNO)
+ && lsadb && can_flush_lsa(oa))
+ {
+ flush_lsa(lsadb, oa);
+ schedule_rtcalc(oa);
+ continue;
+ } /* FIXME lsack? */
/* pg 144 (5d) */
- body=mb_alloc(p->pool,lsatmp.length-sizeof(struct ospf_lsa_header));
- ntohlsab(lsa+1,body,lsatmp.type,
- lsatmp.length-sizeof(struct ospf_lsa_header));
- lsadb=lsa_install_new(&lsatmp,body, oa);
+ body =
+ mb_alloc(p->pool, lsatmp.length - sizeof(struct ospf_lsa_header));
+ ntohlsab(lsa + 1, body, lsatmp.type,
+ lsatmp.length - sizeof(struct ospf_lsa_header));
+ lsadb = lsa_install_new(&lsatmp, body, oa);
DBG("New LSA installed in DB\n");
continue;
/* FIXME pg145 (6) */
/* pg145 (7) */
- if(lsa_comp(&lsatmp,&lsadb->lsa)==CMP_SAME)
+ if (lsa_comp(&lsatmp, &lsadb->lsa) == CMP_SAME)
{
struct top_hash_entry *en;
DBG("PG145(7) Got the same LSA\n");
- if((en=ospf_hash_find_header(n->lsrth,&lsadb->lsa))!=NULL)
+ if ((en = ospf_hash_find_header(n->lsrth, &lsadb->lsa)) != NULL)
{
- /* pg145 (7a) */
- s_rem_node(SNODE en);
- if(en->lsa_body!=NULL) mb_free(en->lsa_body);
- en->lsa_body=NULL;
- ospf_hash_delete(n->lsrth, en);
- if(ifa->state==OSPF_IS_BACKUP)
- {
- if(n->rid==ifa->drid) ospf_lsack_enqueue(n, lsa, ACKL_DELAY);
- }
+ /* pg145 (7a) */
+ s_rem_node(SNODE en);
+ if (en->lsa_body != NULL)
+ mb_free(en->lsa_body);
+ en->lsa_body = NULL;
+ ospf_hash_delete(n->lsrth, en);
+ if (ifa->state == OSPF_IS_BACKUP)
+ {
+ if (n->rid == ifa->drid)
+ ospf_lsack_enqueue(n, lsa, ACKL_DELAY);
+ }
}
else
{
- /* pg145 (7b) */
- ospf_lsack_enqueue(n, lsa, ACKL_DIRECT);
+ /* pg145 (7b) */
+ ospf_lsack_enqueue(n, lsa, ACKL_DIRECT);
}
sendreq = 0;
continue;
}
/* pg145 (8) */
- if((lsadb->lsa.age==LSA_MAXAGE)&&(lsadb->lsa.sn==LSA_MAXSEQNO))
+ if ((lsadb->lsa.age == LSA_MAXAGE) && (lsadb->lsa.sn == LSA_MAXSEQNO))
{
continue;
}
list l;
struct l_lsr_head ll;
init_list(&l);
- ll.lsh.id=lsadb->lsa.id;
- ll.lsh.rt=lsadb->lsa.rt;
- ll.lsh.type=lsadb->lsa.type;
- add_tail(&l, NODE &ll);
- ospf_lsupd_tx_list(n, &l);
+ ll.lsh.id = lsadb->lsa.id;
+ ll.lsh.rt = lsadb->lsa.rt;
+ ll.lsh.type = lsadb->lsa.type;
+ add_tail(&l, NODE & ll);
+ ospf_lsupd_send_list(n, &l);
}
}
/* Send direct LSAs */
ospf_lsack_send(n, ACKL_DIRECT);
- if(sendreq && (n->state==NEIGHBOR_LOADING))
+ if (sendreq && (n->state == NEIGHBOR_LOADING))
{
- ospf_lsreq_send(n); /* Ask for another part of neighbor's database */
+ ospf_lsreq_send(n); /* Ask for another part of neighbor's database */
}
}
void
-net_flush_lsa(struct top_hash_entry *en, struct proto_ospf *po,
- struct ospf_area *oa)
+ospf_lsupd_flush_nlsa(struct top_hash_entry *en, struct ospf_area *oa)
{
- struct ospf_lsa_header *lsa=&en->lsa;
- struct proto *p=&po->proto;
+ struct ospf_lsa_header *lsa = &en->lsa;
+ struct proto_ospf *po = oa->po;
+ struct proto *p = &po->proto;
- lsa->age=LSA_MAXAGE;
- lsa->sn=LSA_MAXSEQNO;
- lsasum_calculate(lsa,en->lsa_body,po);
+ lsa->age = LSA_MAXAGE;
+ lsa->sn = LSA_MAXSEQNO;
+ lsasum_calculate(lsa, en->lsa_body, po);
OSPF_TRACE(D_EVENTS, "Premature aging self originated lsa!");
OSPF_TRACE(D_EVENTS, "Type: %d, Id: %I, Rt: %I", lsa->type,
- lsa->id, lsa->rt);
- flood_lsa(NULL,NULL,lsa,po,NULL,oa,0);
+ lsa->id, lsa->rt);
+ ospf_lsupd_flood(NULL, NULL, lsa, NULL, oa, 0);
}
-
projects / thirdparty / bird.git / commitdiff
