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cleanup in lsupd.c, indenting, "struct proto" removed...

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This commit is contained in:
Ondrej Filip 2004-06-04 21:05:43 +00:00
parent 9b7de4c4d1
commit 6f3203fabf
8 changed files with 308 additions and 277 deletions
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2
proto/ospf/iface.c
View file

@ -102,7 +102,7 @@ iface_chstate(struct ospf_iface *ifa, u8 state)
ifa->nlsa->lsa.age=LSA_MAXAGE; ifa->nlsa->lsa.age=LSA_MAXAGE;
if(state>=OSPF_IS_WAITING) if(state>=OSPF_IS_WAITING)
{ {
net_flush_lsa(ifa->nlsa,po,ifa->oa); ospf_lsupd_flush_nlsa(ifa->nlsa,ifa->oa);
} }
if(can_flush_lsa(ifa->oa)) flush_lsa(ifa->nlsa,ifa->oa); if(can_flush_lsa(ifa->oa)) flush_lsa(ifa->nlsa,ifa->oa);
ifa->nlsa=NULL; ifa->nlsa=NULL;

4
proto/ospf/lsalib.c
View file

@ -1,7 +1,7 @@
/* /*
* BIRD -- OSPF * BIRD -- OSPF
* *
* (c) 1999 - 2000 Ondrej Filip <feela@network.cz> * (c) 1999--2004 Ondrej Filip <feela@network.cz>
* *
* Can be freely distributed and used under the terms of the GNU GPL. * Can be freely distributed and used under the terms of the GNU GPL.
*/ */
@ -70,7 +70,7 @@ ospf_age(struct ospf_area *oa)
en->inst_t=now; en->inst_t=now;
en->ini_age=0; en->ini_age=0;
lsasum_calculate(&en->lsa,en->lsa_body,po); lsasum_calculate(&en->lsa,en->lsa_body,po);
flood_lsa(NULL,NULL,&en->lsa,po,NULL,oa,1); ospf_lsupd_flood(NULL,NULL,&en->lsa,NULL,oa,1);
continue; continue;
} }
if((en->lsa.age=(en->ini_age+(now-en->inst_t)))>=LSA_MAXAGE) if((en->lsa.age=(en->ini_age+(now-en->inst_t)))>=LSA_MAXAGE)

2
proto/ospf/lsreq.c
View file

@ -116,6 +116,6 @@ ospf_lsreq_receive(struct ospf_lsreq_packet *ps,
return; return;
} }
} }
ospf_lsupd_tx_list(n, &uplist); ospf_lsupd_send_list(n, &uplist);
rfree(upslab); rfree(upslab);
} }

549
proto/ospf/lsupd.c
View file

@ -1,7 +1,7 @@
/* /*
* BIRD -- OSPF * 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. * Can be freely distributed and used under the terms of the GNU GPL.
*/ */
@ -9,7 +9,7 @@
#include "ospf.h" #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) * @n: neighbor than sent this lsa (or NULL if generated)
* @hn: LSA header followed by lsa body in network endianity (may be NULL) * @hn: LSA header followed by lsa body in network endianity (may be NULL)
* @hh: LSA header in host endianity (must be filled) * @hh: LSA header in host endianity (must be filled)
@ -22,110 +22,127 @@
*/ */
int int
flood_lsa(struct ospf_neighbor *n, struct ospf_lsa_header *hn, ospf_lsupd_flood(struct ospf_neighbor *n, struct ospf_lsa_header *hn,
struct ospf_lsa_header *hh, struct proto_ospf *po, struct ospf_iface *iff, struct ospf_lsa_header *hh, struct ospf_iface *iff,
struct ospf_area *oa, int rtl) struct ospf_area *oa, int rtl)
{ {
struct ospf_iface *ifa; struct ospf_iface *ifa;
struct ospf_neighbor *nn; struct ospf_neighbor *nn;
struct top_hash_entry *en; 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; int ret, retval = 0;
/* pg 148 */ /* 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->type == OSPF_IT_VLINK)
if(ifa->oa->stub) continue; continue;
if (ifa->oa->stub)
continue;
} }
else 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 else
{ {
if(ifa->oa!=oa) continue; if (ifa->oa != oa)
continue;
} }
} }
ret=0; ret = 0;
WALK_LIST(NODE nn, ifa->neigh_list) WALK_LIST(NODE nn, ifa->neigh_list)
{ {
if(nn->state<NEIGHBOR_EXCHANGE) continue; if (nn->state < NEIGHBOR_EXCHANGE)
if(nn->state<NEIGHBOR_FULL) 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: case CMP_OLDER:
continue; continue;
break; break;
case CMP_SAME: case CMP_SAME:
s_rem_node(SNODE en); s_rem_node(SNODE en);
if(en->lsa_body!=NULL) mb_free(en->lsa_body); if (en->lsa_body != NULL)
en->lsa_body=NULL; mb_free(en->lsa_body);
DBG("Removing from lsreq list for neigh %I\n", nn->rid); en->lsa_body = NULL;
ospf_hash_delete(nn->lsrqh,en); DBG("Removing from lsreq list for neigh %I\n", nn->rid);
if(EMPTY_SLIST(nn->lsrql)) ospf_neigh_sm(nn, INM_LOADDONE); ospf_hash_delete(nn->lsrqh, en);
continue; if (EMPTY_SLIST(nn->lsrql))
break; ospf_neigh_sm(nn, INM_LOADDONE);
case CMP_NEWER: continue;
s_rem_node(SNODE en); break;
if(en->lsa_body!=NULL) mb_free(en->lsa_body); case CMP_NEWER:
en->lsa_body=NULL; s_rem_node(SNODE en);
DBG("Removing from lsreq list for neigh %I\n", nn->rid); if (en->lsa_body != NULL)
ospf_hash_delete(nn->lsrqh,en); mb_free(en->lsa_body);
if(EMPTY_SLIST(nn->lsrql)) ospf_neigh_sm(nn, INM_LOADDONE); en->lsa_body = NULL;
break; DBG("Removing from lsreq list for neigh %I\n", nn->rid);
default: bug("Bug in lsa_comp?"); 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) if ((en = ospf_hash_find_header(nn->lsrth, hh)) == NULL)
{ {
en=ospf_hash_get_header(nn->lsrth, hh); en = ospf_hash_get_header(nn->lsrth, hh);
} }
else else
{ {
s_rem_node(SNODE en); s_rem_node(SNODE en);
} }
s_add_tail(&nn->lsrtl, SNODE en); s_add_tail(&nn->lsrtl, SNODE en);
memcpy(&en->lsa,hh,sizeof(struct ospf_lsa_header)); memcpy(&en->lsa, hh, sizeof(struct ospf_lsa_header));
DBG("Adding LSA lsrt RT: %I, Id: %I, Type: %u for n: %I\n", 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); en->lsa.rt, en->lsa.id, en->lsa.type, nn->ip);
} }
else else
{ {
if((en=ospf_hash_find_header(nn->lsrth, hh))!=NULL) if ((en = ospf_hash_find_header(nn->lsrth, hh)) != NULL)
{ {
s_rem_node(SNODE en); s_rem_node(SNODE en);
if(en->lsa_body!=NULL) mb_free(en->lsa_body); if (en->lsa_body != NULL)
en->lsa_body=NULL; mb_free(en->lsa_body);
ospf_hash_delete(nn->lsrth, en); 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 ((n->rid == iff->drid) || n->rid == iff->bdrid)
if(iff->state==OSPF_IS_BACKUP) continue; /* pg 150 (4) */ continue; /* pg 150 (3) */
retval = 1; /* FIXME !!!!!!!!!!! */ if (iff->state == OSPF_IS_BACKUP)
continue; /* pg 150 (4) */
retval = 1;
} }
{ {
@ -136,65 +153,70 @@ flood_lsa(struct ospf_neighbor *n, struct ospf_lsa_header *hn,
struct ospf_packet *op; struct ospf_packet *op;
struct ospf_lsa_header *lh; struct ospf_lsa_header *lh;
if(ifa->type==OSPF_IT_NBMA) sk=ifa->ip_sk; if (ifa->type == OSPF_IT_NBMA)
else sk=ifa->hello_sk; /* FIXME is this true for PTP? */ sk = ifa->ip_sk;
else
sk = ifa->hello_sk; /* FIXME is this true for PTP? */
pk=(struct ospf_lsupd_packet *)sk->tbuf; pk = (struct ospf_lsupd_packet *) sk->tbuf;
op=(struct ospf_packet *)sk->tbuf; op = (struct ospf_packet *) sk->tbuf;
fill_ospf_pkt_hdr(ifa, pk, LSUPD_P); 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 */ /* Copy LSA into the packet */
if(hn) if (hn)
{ {
memcpy(lh, hn, ntohs(hn->length)); memcpy(lh, hn, ntohs(hn->length));
} }
else else
{ {
u8 *help; u8 *help;
struct top_hash_entry *en; struct top_hash_entry *en;
htonlsah(hh,lh); htonlsah(hh, lh);
help = (u8 *)(lh+1); help = (u8 *) (lh + 1);
en = ospf_hash_find_header(oa->gr,hh); en = ospf_hash_find_header(oa->gr, hh);
htonlsab(en->lsa_body,help,hh->type,hh->length htonlsab(en->lsa_body, help, hh->type, hh->length
-sizeof(struct ospf_lsa_header)); - 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 = ntohs(lh->age);
age += ifa->inftransdelay; age += ifa->inftransdelay;
if( age > LSA_MAXAGE ) age = LSA_MAXAGE; if (age > LSA_MAXAGE)
age = LSA_MAXAGE;
lh->age = htons(age); lh->age = htons(age);
op->length=htons(len); op->length = htons(len);
ospf_pkt_finalize(ifa, op); ospf_pkt_finalize(ifa, op);
OSPF_TRACE(D_PACKETS, "LS upd flooded via %s", ifa->iface->name); 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)) if ((ifa->state == OSPF_IS_BACKUP) || (ifa->state == OSPF_IS_DR))
sk_send_to_agt(sk ,len, ifa, NEIGHBOR_EXCHANGE); sk_send_to_agt(sk, len, ifa, NEIGHBOR_EXCHANGE);
else sk_send_to_bdr(sk ,len, ifa); else
sk_send_to_bdr(sk, len, ifa);
} }
else else
{ {
if((ifa->state==OSPF_IS_BACKUP)||(ifa->state==OSPF_IS_DR)|| if ((ifa->state == OSPF_IS_BACKUP) || (ifa->state == OSPF_IS_DR) ||
(ifa->type==OSPF_IT_PTP)) (ifa->type == OSPF_IT_PTP))
sk_send_to(sk,len, AllSPFRouters, OSPF_PROTO); sk_send_to(sk, len, AllSPFRouters, OSPF_PROTO);
else sk_send_to(sk,len, AllDRouters, OSPF_PROTO); else
sk_send_to(sk, len, AllDRouters, OSPF_PROTO);
} }
} }
} }
return retval; return retval;
} }
void /* I send all I received in LSREQ */ void /* I send all I received in LSREQ */
ospf_lsupd_tx_list(struct ospf_neighbor *n, list *l) ospf_lsupd_send_list(struct ospf_neighbor *n, list * l)
{ {
struct l_lsr_head *llsh; struct l_lsr_head *llsh;
u16 len; u16 len;
@ -202,95 +224,98 @@ ospf_lsupd_tx_list(struct ospf_neighbor *n, list *l)
struct top_hash_entry *en; struct top_hash_entry *en;
struct ospf_lsupd_packet *pk; struct ospf_lsupd_packet *pk;
struct ospf_packet *op; struct ospf_packet *op;
struct proto *p=&n->ifa->oa->po->proto; struct proto *p = &n->ifa->oa->po->proto;
void *pktpos; void *pktpos;
u8 ii; 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; pk = (struct ospf_lsupd_packet *) n->ifa->ip_sk->tbuf;
op=(struct ospf_packet *)n->ifa->ip_sk->tbuf; op = (struct ospf_packet *) n->ifa->ip_sk->tbuf;
DBG("LSupd: 1st packet\n"); DBG("LSupd: 1st packet\n");
fill_ospf_pkt_hdr(n->ifa, pk, LSUPD_P); fill_ospf_pkt_hdr(n->ifa, pk, LSUPD_P);
len=SIPH+sizeof(struct ospf_lsupd_packet); len = SIPH + sizeof(struct ospf_lsupd_packet);
lsano=0; lsano = 0;
pktpos=(pk+1); pktpos = (pk + 1);
WALK_LIST(llsh, *l) WALK_LIST(llsh, *l)
{ {
if((en=ospf_hash_find(n->ifa->oa->gr,llsh->lsh.id,llsh->lsh.rt, if ((en = ospf_hash_find(n->ifa->oa->gr, llsh->lsh.id, llsh->lsh.rt,
llsh->lsh.type))==NULL) continue; /* Probably flushed LSA */ llsh->lsh.type)) == NULL)
continue; /* Probably flushed LSA */
DBG("Sending ID=%I, Type=%u, RT=%I Sn: 0x%x Age: %u\n", 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); 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) if (((u32) (len + en->lsa.length)) > n->ifa->iface->mtu)
{ {
pk->lsano=htonl(lsano); pk->lsano = htonl(lsano);
op->length=htons(len-SIPH); op->length = htons(len - SIPH);
ospf_pkt_finalize(n->ifa, op); 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); OSPF_TRACE(D_PACKETS, "LS upd sent to %I (%d LSAs)", n->ip, lsano);
DBG("LSupd: next packet\n"); DBG("LSupd: next packet\n");
fill_ospf_pkt_hdr(n->ifa, pk, LSUPD_P); fill_ospf_pkt_hdr(n->ifa, pk, LSUPD_P);
len=SIPH+sizeof(struct ospf_lsupd_packet); len = SIPH + sizeof(struct ospf_lsupd_packet);
lsano=0; lsano = 0;
pktpos=(pk+1); pktpos = (pk + 1);
} }
htonlsah(&(en->lsa), pktpos); 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 htonlsab(en->lsa_body, pktpos, en->lsa.type, en->lsa.length
-sizeof(struct ospf_lsa_header)); - sizeof(struct ospf_lsa_header));
pktpos=pktpos+en->lsa.length-sizeof(struct ospf_lsa_header); pktpos = pktpos + en->lsa.length - sizeof(struct ospf_lsa_header);
len+=en->lsa.length; len += en->lsa.length;
lsano++; lsano++;
} }
if(lsano>0) if (lsano > 0)
{ {
pk->lsano=htonl(lsano); pk->lsano = htonl(lsano);
op->length=htons(len-SIPH); op->length = htons(len - SIPH);
ospf_pkt_finalize(n->ifa, op); ospf_pkt_finalize(n->ifa, op);
OSPF_TRACE(D_PACKETS, "LS upd sent to %I (%d LSAs)", n->ip, lsano); 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 void
ospf_lsupd_receive(struct ospf_lsupd_packet *ps, ospf_lsupd_receive(struct ospf_lsupd_packet *ps,
struct ospf_iface *ifa, u16 size) struct ospf_iface *ifa, u16 size)
{ {
u32 area,nrid; u32 area, nrid;
struct ospf_neighbor *n,*ntmp; struct ospf_neighbor *n, *ntmp;
struct ospf_lsa_header *lsa; struct ospf_lsa_header *lsa;
struct ospf_area *oa; struct ospf_area *oa;
struct proto_ospf *po=ifa->proto; struct proto_ospf *po = ifa->proto;
struct proto *p = (struct proto *)po; struct proto *p = (struct proto *) po;
u16 length; u16 length;
u8 i; u8 i;
int sendreq = 1; 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)", OSPF_TRACE(D_PACKETS, "Received lsupd from unknown neighbor! (%I)", nrid);
nrid);
return ;
}
if(n->state<NEIGHBOR_EXCHANGE)
{
OSPF_TRACE(D_PACKETS, "Received lsupd in lesser state than EXCHANGE from (%I)",
n->ip);
return; return;
} }
if(size<=(sizeof(struct ospf_lsupd_packet)+sizeof(struct ospf_lsa_header))) if (n->state < NEIGHBOR_EXCHANGE)
{
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)))
{ {
log(L_WARN "Received lsupd from %I is too short!", n->ip); log(L_WARN "Received lsupd from %I is too short!", n->ip);
return; return;
@ -299,26 +324,28 @@ ospf_lsupd_receive(struct ospf_lsupd_packet *ps,
OSPF_TRACE(D_PACKETS, "Received LS upd from %I", n->ip); OSPF_TRACE(D_PACKETS, "Received LS upd from %I", n->ip);
ospf_neigh_sm(n, INM_HELLOREC); /* Questionable */ ospf_neigh_sm(n, INM_HELLOREC); /* Questionable */
lsa=(struct ospf_lsa_header *)(ps+1); lsa = (struct ospf_lsa_header *) (ps + 1);
area=htonl(ps->ospf_packet.areaid); area = htonl(ps->ospf_packet.areaid);
oa=ospf_find_area((struct proto_ospf *)p,area); oa = ospf_find_area((struct proto_ospf *) p, area);
for(i=0; i<ntohl(ps->lsano); i++, for (i = 0; i < ntohl(ps->lsano); i++,
lsa=(struct ospf_lsa_header *)(((u8 *)lsa)+ntohs(lsa->length))) lsa = (struct ospf_lsa_header *) (((u8 *) lsa) + ntohs(lsa->length)))
{ {
struct ospf_lsa_header lsatmp; struct ospf_lsa_header lsatmp;
struct top_hash_entry *lsadb; struct top_hash_entry *lsadb;
int diff=((u8 *)lsa)-((u8 *)ps); int diff = ((u8 *) lsa) - ((u8 *) ps);
u16 chsum, lenn = ntohs(lsa->length); 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); log(L_WARN "Received lsupd from %I is too short!", n->ip);
ospf_neigh_sm(n, INM_BADLSREQ); ospf_neigh_sm(n, INM_BADLSREQ);
break; 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); log(L_WARN "Received LSA from %I with bad length", n->ip);
ospf_neigh_sm(n, INM_BADLSREQ); ospf_neigh_sm(n, INM_BADLSREQ);
@ -326,53 +353,53 @@ ospf_lsupd_receive(struct ospf_lsupd_packet *ps,
} }
/* pg 143 (1) */ /* pg 143 (1) */
chsum=lsa->checksum; chsum = lsa->checksum;
if(chsum!=lsasum_check(lsa,NULL,po)) if (chsum != lsasum_check(lsa, NULL, po))
{ {
log(L_WARN "Received bad lsa checksum from %I", n->ip); log(L_WARN "Received bad lsa checksum from %I", n->ip);
continue; continue;
} }
/* pg 143 (2) */ /* 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); log(L_WARN "Unknown LSA type from %I", n->ip);
continue; continue;
} }
/* pg 143 (3) */ /* 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); log(L_WARN "Received External LSA in stub area from %I", n->ip);
continue; continue;
} }
ntohlsah(lsa,&lsatmp); ntohlsah(lsa, &lsatmp);
DBG("Update Type: %u ID: %I RT: %I, Sn: 0x%08x Age: %u, Sum: %u\n", 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.type, lsatmp.id, lsatmp.rt, lsatmp.sn, lsatmp.age,
lsatmp.checksum); lsatmp.checksum);
lsadb=ospf_hash_find_header(oa->gr, &lsatmp); lsadb = ospf_hash_find_header(oa->gr, &lsatmp);
#ifdef LOCAL_DEBUG #ifdef LOCAL_DEBUG
if(lsadb) if (lsadb)
DBG("I have Type: %u ID: %I RT: %I, Sn: 0x%08x Age: %u, Sum: %u\n", 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.type, lsadb->lsa.id, lsadb->lsa.rt, lsadb->lsa.sn,
lsadb->lsa.age, lsadb->lsa.checksum); lsadb->lsa.age, lsadb->lsa.checksum);
#endif #endif
/* pg 143 (4) */ /* 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); ospf_lsack_enqueue(n, lsa, ACKL_DIRECT);
continue; continue;
} }
/* pg 144 (5) */ /* 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; void *body;
struct ospf_iface *nifa; struct ospf_iface *nifa;
int self = (lsatmp.rt == p->cf->global->router_id); int self = (lsatmp.rt == p->cf->global->router_id);
@ -380,93 +407,98 @@ ospf_lsupd_receive(struct ospf_lsupd_packet *ps,
DBG("PG143(5): Received LSA is newer\n"); DBG("PG143(5): Received LSA is newer\n");
/* pg 145 (5f) - premature aging of self originated lsa */ /* 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) WALK_LIST(nifa, po->iface_list)
{ {
if(ipa_compare(nifa->iface->addr->ip,ipa_from_u32(lsatmp.id))==0) if (ipa_compare(nifa->iface->addr->ip, ipa_from_u32(lsatmp.id)) ==
{ 0)
self = 1; {
break; self = 1;
} break;
} }
}
} }
if(self) if (self)
{ {
struct top_hash_entry *en; struct top_hash_entry *en;
if((lsatmp.age==LSA_MAXAGE)&&(lsatmp.sn==LSA_MAXSEQNO)) if ((lsatmp.age == LSA_MAXAGE) && (lsatmp.sn == LSA_MAXSEQNO))
{ {
ospf_lsack_enqueue(n, lsa, ACKL_DIRECT); ospf_lsack_enqueue(n, lsa, ACKL_DIRECT);
continue; continue;
} }
lsatmp.age=LSA_MAXAGE; lsatmp.age = LSA_MAXAGE;
lsatmp.sn=LSA_MAXSEQNO; lsatmp.sn = LSA_MAXSEQNO;
lsa->age=htons(LSA_MAXAGE); lsa->age = htons(LSA_MAXAGE);
lsa->sn=htonl(LSA_MAXSEQNO); lsa->sn = htonl(LSA_MAXSEQNO);
OSPF_TRACE(D_EVENTS, "Premature aging self originated lsa."); OSPF_TRACE(D_EVENTS, "Premature aging self originated lsa.");
OSPF_TRACE(D_EVENTS, "Type: %d, Id: %I, Rt: %I",lsatmp.type, OSPF_TRACE(D_EVENTS, "Type: %d, Id: %I, Rt: %I", lsatmp.type,
lsatmp.id, lsatmp.rt); lsatmp.id, lsatmp.rt);
lsasum_check(lsa,(lsa+1),po); /* It also calculates chsum! */ lsasum_check(lsa, (lsa + 1), po); /* It also calculates chsum! */
lsatmp.checksum=ntohs(lsa->checksum); lsatmp.checksum = ntohs(lsa->checksum);
flood_lsa(NULL,lsa,&lsatmp,po,NULL,oa,0); ospf_lsupd_flood(NULL, lsa, &lsatmp, NULL, oa, 0);
if(en=ospf_hash_find_header(oa->gr,&lsatmp)) if (en = ospf_hash_find_header(oa->gr, &lsatmp))
{ {
flood_lsa(NULL,NULL,&en->lsa,po,NULL,oa,1); 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? */
{
DBG("I got it in less that MINLSARRIVAL\n");
sendreq = 0;
continue; continue;
} }
if(flood_lsa(n,lsa,&lsatmp,po,ifa,ifa->oa,1)==0) /* pg 144 (5a) */
if (lsadb && ((now - lsadb->inst_t) <= MINLSARRIVAL)) /* FIXME: test for flooding? */
{ {
DBG("Wasn't flooded back\n"); /* ps 144(5e), pg 153 */ DBG("I got it in less that MINLSARRIVAL\n");
if(ifa->state==OSPF_IS_BACKUP) sendreq = 0;
continue;
}
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)
{ {
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 */ /* Remove old from all ret lists */
/* pg 144 (5c) */ /* pg 144 (5c) */
if(lsadb) if (lsadb)
WALK_LIST(NODE ift,po->iface_list) WALK_LIST(NODE ift, po->iface_list)
WALK_LIST(NODE ntmp,ift->neigh_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))
{ {
flush_lsa(lsadb,oa); struct top_hash_entry *en;
schedule_rtcalc(oa); if (ntmp->state > NEIGHBOR_EXSTART)
continue; if ((en = ospf_hash_find_header(ntmp->lsrth, &lsadb->lsa)) != NULL)
} /* FIXME lsack? */ {
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) */ /* pg 144 (5d) */
body=mb_alloc(p->pool,lsatmp.length-sizeof(struct ospf_lsa_header)); body =
ntohlsab(lsa+1,body,lsatmp.type, mb_alloc(p->pool, lsatmp.length - sizeof(struct ospf_lsa_header));
lsatmp.length-sizeof(struct ospf_lsa_header)); ntohlsab(lsa + 1, body, lsatmp.type,
lsadb=lsa_install_new(&lsatmp,body, oa); lsatmp.length - sizeof(struct ospf_lsa_header));
lsadb = lsa_install_new(&lsatmp, body, oa);
DBG("New LSA installed in DB\n"); DBG("New LSA installed in DB\n");
continue; continue;
@ -475,33 +507,35 @@ ospf_lsupd_receive(struct ospf_lsupd_packet *ps,
/* FIXME pg145 (6) */ /* FIXME pg145 (6) */
/* pg145 (7) */ /* pg145 (7) */
if(lsa_comp(&lsatmp,&lsadb->lsa)==CMP_SAME) if (lsa_comp(&lsatmp, &lsadb->lsa) == CMP_SAME)
{ {
struct top_hash_entry *en; struct top_hash_entry *en;
DBG("PG145(7) Got the same LSA\n"); 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) */ /* pg145 (7a) */
s_rem_node(SNODE en); s_rem_node(SNODE en);
if(en->lsa_body!=NULL) mb_free(en->lsa_body); if (en->lsa_body != NULL)
en->lsa_body=NULL; mb_free(en->lsa_body);
ospf_hash_delete(n->lsrth, en); en->lsa_body = NULL;
if(ifa->state==OSPF_IS_BACKUP) ospf_hash_delete(n->lsrth, en);
{ if (ifa->state == OSPF_IS_BACKUP)
if(n->rid==ifa->drid) ospf_lsack_enqueue(n, lsa, ACKL_DELAY); {
} if (n->rid == ifa->drid)
ospf_lsack_enqueue(n, lsa, ACKL_DELAY);
}
} }
else else
{ {
/* pg145 (7b) */ /* pg145 (7b) */
ospf_lsack_enqueue(n, lsa, ACKL_DIRECT); ospf_lsack_enqueue(n, lsa, ACKL_DIRECT);
} }
sendreq = 0; sendreq = 0;
continue; continue;
} }
/* pg145 (8) */ /* 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; continue;
} }
@ -510,36 +544,35 @@ ospf_lsupd_receive(struct ospf_lsupd_packet *ps,
list l; list l;
struct l_lsr_head ll; struct l_lsr_head ll;
init_list(&l); init_list(&l);
ll.lsh.id=lsadb->lsa.id; ll.lsh.id = lsadb->lsa.id;
ll.lsh.rt=lsadb->lsa.rt; ll.lsh.rt = lsadb->lsa.rt;
ll.lsh.type=lsadb->lsa.type; ll.lsh.type = lsadb->lsa.type;
add_tail(&l, NODE &ll); add_tail(&l, NODE & ll);
ospf_lsupd_tx_list(n, &l); ospf_lsupd_send_list(n, &l);
} }
} }
/* Send direct LSAs */ /* Send direct LSAs */
ospf_lsack_send(n, ACKL_DIRECT); 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 void
net_flush_lsa(struct top_hash_entry *en, struct proto_ospf *po, ospf_lsupd_flush_nlsa(struct top_hash_entry *en, struct ospf_area *oa)
struct ospf_area *oa)
{ {
struct ospf_lsa_header *lsa=&en->lsa; struct ospf_lsa_header *lsa = &en->lsa;
struct proto *p=&po->proto; struct proto_ospf *po = oa->po;
struct proto *p = &po->proto;
lsa->age=LSA_MAXAGE; lsa->age = LSA_MAXAGE;
lsa->sn=LSA_MAXSEQNO; lsa->sn = LSA_MAXSEQNO;
lsasum_calculate(lsa,en->lsa_body,po); lsasum_calculate(lsa, en->lsa_body, po);
OSPF_TRACE(D_EVENTS, "Premature aging self originated lsa!"); OSPF_TRACE(D_EVENTS, "Premature aging self originated lsa!");
OSPF_TRACE(D_EVENTS, "Type: %d, Id: %I, Rt: %I", lsa->type, OSPF_TRACE(D_EVENTS, "Type: %d, Id: %I, Rt: %I", lsa->type,
lsa->id, lsa->rt); lsa->id, lsa->rt);
flood_lsa(NULL,NULL,lsa,po,NULL,oa,0); ospf_lsupd_flood(NULL, NULL, lsa, NULL, oa, 0);
} }

16
proto/ospf/lsupd.h
View file

@ -1,7 +1,7 @@
/* /*
* BIRD -- OSPF * BIRD -- OSPF
* *
* (c) 2000 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. * Can be freely distributed and used under the terms of the GNU GPL.
* *
@ -10,14 +10,12 @@
#ifndef _BIRD_OSPF_LSUPD_H_ #ifndef _BIRD_OSPF_LSUPD_H_
#define _BIRD_OSPF_LSUPD_H_ #define _BIRD_OSPF_LSUPD_H_
void ospf_lsupd_tx_list(struct ospf_neighbor *n, list *l); void ospf_lsupd_send_list(struct ospf_neighbor *n, list * l);
void ospf_lsupd_receive(struct ospf_lsupd_packet *ps, void ospf_lsupd_receive(struct ospf_lsupd_packet *ps,
struct ospf_iface *ifa, u16 size); struct ospf_iface *ifa, u16 size);
int flood_lsa(struct ospf_neighbor *n, struct ospf_lsa_header *hn, int ospf_lsupd_flood(struct ospf_neighbor *n, struct ospf_lsa_header *hn,
struct ospf_lsa_header *hh, struct proto_ospf *po, struct ospf_iface *iff, struct ospf_lsa_header *hh, struct ospf_iface *iff,
struct ospf_area *oa, int rtl); struct ospf_area *oa, int rtl);
void net_flush_lsa(struct top_hash_entry *en, struct proto_ospf *po, void ospf_lsupd_flush_nlsa(struct top_hash_entry *en, struct ospf_area *oa);
struct ospf_area *oa);
#endif /* _BIRD_OSPF_LSUPD_H_ */ #endif /* _BIRD_OSPF_LSUPD_H_ */

2
proto/ospf/neighbor.c
View file

@ -600,7 +600,7 @@ rxmt_timer_hook(timer *timer)
en->lsa.id, en->lsa.rt, en->lsa.type); en->lsa.id, en->lsa.rt, en->lsa.type);
add_tail(&uplist, NODE llsh); add_tail(&uplist, NODE llsh);
} }
ospf_lsupd_tx_list(n, &uplist); ospf_lsupd_send_list(n, &uplist);
rfree(upslab); rfree(upslab);
} }
} }

2
proto/ospf/ospf.c
View file

@ -405,7 +405,7 @@ ospf_rt_notify(struct proto *p, net *n, rte *new, rte *old, ea_list *attrs)
ext=en->lsa_body; ext=en->lsa_body;
if(ipa_compare(ext->netmask, ipa_mkmask(n->n.pxlen))==0) if(ipa_compare(ext->netmask, ipa_mkmask(n->n.pxlen))==0)
{ {
net_flush_lsa(en,po,oa); ospf_lsupd_flush_nlsa(en,oa);
break; break;
} }
} }

10
proto/ospf/topology.c
View file

@ -2,7 +2,7 @@
* BIRD -- OSPF Topological Database * BIRD -- OSPF Topological Database
* *
* (c) 1999 Martin Mares <mj@ucw.cz> * (c) 1999 Martin Mares <mj@ucw.cz>
* (c) 1999 - 2000 Ondrej Filip <feela@network.cz> * (c) 1999 - 2004 Ondrej Filip <feela@network.cz>
* *
* Can be freely distributed and used under the terms of the GNU GPL. * Can be freely distributed and used under the terms of the GNU GPL.
*/ */
@ -215,7 +215,7 @@ originate_rt_lsa(struct ospf_area *oa)
lsasum_calculate(&lsa,body,po); lsasum_calculate(&lsa,body,po);
en=lsa_install_new(&lsa, body, oa); en=lsa_install_new(&lsa, body, oa);
oa->rt=en; oa->rt=en;
flood_lsa(NULL,NULL,&oa->rt->lsa,po,NULL,oa,1); ospf_lsupd_flood(NULL,NULL,&oa->rt->lsa,NULL,oa,1);
schedule_rtcalc(oa); schedule_rtcalc(oa);
oa->origrt=0; oa->origrt=0;
} }
@ -282,7 +282,7 @@ originate_net_lsa(struct ospf_iface *ifa)
ifa->iface->name); ifa->iface->name);
ifa->nlsa->lsa.sn+=1; ifa->nlsa->lsa.sn+=1;
ifa->nlsa->lsa.age=LSA_MAXAGE; ifa->nlsa->lsa.age=LSA_MAXAGE;
flood_lsa(NULL,NULL,&ifa->nlsa->lsa,po,NULL,ifa->oa,0); ospf_lsupd_flood(NULL,NULL,&ifa->nlsa->lsa,NULL,ifa->oa,0);
s_rem_node(SNODE ifa->nlsa); s_rem_node(SNODE ifa->nlsa);
if(ifa->nlsa->lsa_body!=NULL) mb_free(ifa->nlsa->lsa_body); if(ifa->nlsa->lsa_body!=NULL) mb_free(ifa->nlsa->lsa_body);
ifa->nlsa->lsa_body=NULL; ifa->nlsa->lsa_body=NULL;
@ -312,7 +312,7 @@ originate_net_lsa(struct ospf_iface *ifa)
body=originate_net_lsa_body(ifa, &lsa.length, po); body=originate_net_lsa_body(ifa, &lsa.length, po);
lsasum_calculate(&lsa,body,po); lsasum_calculate(&lsa,body,po);
ifa->nlsa=lsa_install_new(&lsa, body, ifa->oa); ifa->nlsa=lsa_install_new(&lsa, body, ifa->oa);
flood_lsa(NULL,NULL,&ifa->nlsa->lsa,po,NULL,ifa->oa,1); ospf_lsupd_flood(NULL,NULL,&ifa->nlsa->lsa,NULL,ifa->oa,1);
ifa->orignet=0; ifa->orignet=0;
} }
@ -445,7 +445,7 @@ originate_ext_lsa(net *n, rte *e, struct proto_ospf *po, struct ea_list *attrs)
WALK_LIST(oa, po->area_list) WALK_LIST(oa, po->area_list)
{ {
en=lsa_install_new(&lsa, body, oa); en=lsa_install_new(&lsa, body, oa);
flood_lsa(NULL,NULL,&en->lsa,po,NULL,oa,1); ospf_lsupd_flood(NULL,NULL,&en->lsa,NULL,oa,1);
body=originate_ext_lsa_body(n, e, po, attrs); body=originate_ext_lsa_body(n, e, po, attrs);
} }
mb_free(body); mb_free(body);