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This commit is contained in:
Ondrej Filip 2004-06-06 09:37:54 +00:00
parent 66261211a9
commit 2e10a170fe
14 changed files with 1629 additions and 1481 deletions
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6
proto/ospf/hello.c
View file

@ -36,13 +36,15 @@ ospf_hello_receive(struct ospf_hello_packet *ps,
if (ntohs(ps->helloint) != ifa->helloint)
{
log(L_WARN "%s%I%shello interval mismatch (%d).", beg, faddr, rec, ntohs(ps->helloint));
log(L_WARN "%s%I%shello interval mismatch (%d).", beg, faddr, rec,
ntohs(ps->helloint));
return;
}
if (ntohl(ps->deadint) != ifa->helloint * ifa->deadc)
{
log(L_ERR "%s%I%sdead interval mismatch (%d).", beg, faddr, rec, ntohl(ps->deadint));
log(L_ERR "%s%I%sdead interval mismatch (%d).", beg, faddr, rec,
ntohl(ps->deadint));
return;
}

6
proto/ospf/iface.c
View file

@ -150,8 +150,7 @@ ospf_iface_sm(struct ospf_iface *ifa, int event)
{
struct ospf_area *oa = ifa->oa;
DBG("SM on iface %s. Event is \"%s\".",
ifa->iface->name, ospf_ism[event]);
DBG("SM on iface %s. Event is \"%s\".", ifa->iface->name, ospf_ism[event]);
switch (event)
{
@ -386,8 +385,7 @@ ospf_iface_notify(struct proto *p, unsigned flags, struct iface *iface)
ifa->options = 2; /* FIXME what options? */
if (ip->type == OSPF_IT_UNDEF)
ifa->type =
ospf_iface_clasify(ifa->iface);
ifa->type = ospf_iface_clasify(ifa->iface);
else
ifa->type = ip->type;

50
proto/ospf/lsalib.c
View file

@ -12,10 +12,12 @@ void
flush_lsa(struct top_hash_entry *en, struct ospf_area *oa)
{
struct proto *p = &oa->po->proto;
OSPF_TRACE(D_EVENTS, "Going to remove node Type: %u, Id: %I, Rt: %I, Age: %u",
OSPF_TRACE(D_EVENTS,
"Going to remove node Type: %u, Id: %I, Rt: %I, Age: %u",
en->lsa.type, en->lsa.id, en->lsa.rt, en->lsa.age);
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(oa->gr, en);
}
@ -58,10 +60,12 @@ ospf_age(struct ospf_area *oa)
}
if (en->lsa.age == LSA_MAXAGE)
{
if(flush) flush_lsa(en,oa);
if (flush)
flush_lsa(en, oa);
continue;
}
if((en->lsa.rt==p->cf->global->router_id)&&(en->lsa.age>=LSREFRESHTIME))
if ((en->lsa.rt == p->cf->global->router_id) &&(en->lsa.age >=
LSREFRESHTIME))
{
OSPF_TRACE(D_EVENTS, "Refreshing my LSA: Type: %u, Id: %I, Rt: %I",
en->lsa.type, en->lsa.id, en->lsa.rt);
@ -80,7 +84,8 @@ ospf_age(struct ospf_area *oa)
flush_lsa(en, oa);
schedule_rtcalc(oa);
}
else en->lsa.age=LSA_MAXAGE;
else
en->lsa.age = LSA_MAXAGE;
}
}
}
@ -205,7 +210,8 @@ htonlsab(void *h, void *n, u8 type, u16 len)
}
break;
}
default: bug("(hton): Unknown LSA");
default:
bug("(hton): Unknown LSA");
}
};
@ -302,7 +308,8 @@ ntohlsab(void *n, void *h, u8 type, u16 len)
}
break;
}
default: bug("(ntoh): Unknown LSA");
default:
bug("(ntoh): Unknown LSA");
}
};
@ -349,7 +356,8 @@ lsasum_check(struct ospf_lsa_header *h,void *body,struct proto_ospf *po)
for (ep = sp + length; sp < ep; sp = q)
{ /* Actually MODX is very large, do we need the for-cyclus? */
q = sp + MODX;
if (q > ep) q = ep;
if (q > ep)
q = ep;
for (p = sp; p < q; p++)
{
/*
@ -374,9 +382,11 @@ lsasum_check(struct ospf_lsa_header *h,void *body,struct proto_ospf *po)
}
x = ((length - LSA_CHECKSUM_OFFSET) * c0 - c1) % 255;
if (x <= 0) x += 255;
if (x <= 0)
x += 255;
y = 510 - c0 - x;
if (y > 255) y -= 255;
if (y > 255)
y -= 255;
((u8 *) & h->checksum)[0] = x;
((u8 *) & h->checksum)[1] = y;
@ -392,14 +402,18 @@ lsa_comp(struct ospf_lsa_header *l1, struct ospf_lsa_header *l2)
sn1 = l1->sn - LSA_INITSEQNO + 1;
sn2 = l2->sn - LSA_INITSEQNO + 1;
if(sn1>sn2) return CMP_NEWER;
if(sn1<sn2) return CMP_OLDER;
if (sn1 > sn2)
return CMP_NEWER;
if (sn1 < sn2)
return CMP_OLDER;
if (l1->checksum != l2->checksum)
return l1->checksum < l2->checksum ? CMP_OLDER : CMP_NEWER;
if((l1->age==LSA_MAXAGE)&&(l2->age!=LSA_MAXAGE)) return CMP_NEWER;
if((l2->age==LSA_MAXAGE)&&(l1->age!=LSA_MAXAGE)) return CMP_OLDER;
if ((l1->age == LSA_MAXAGE) && (l2->age != LSA_MAXAGE))
return CMP_NEWER;
if ((l2->age == LSA_MAXAGE) && (l1->age != LSA_MAXAGE))
return CMP_OLDER;
if (ABS(l1->age - l2->age) > LSA_MAXAGEDIFF)
return l1->age < l2->age ? CMP_NEWER : CMP_OLDER;
@ -432,8 +446,9 @@ lsa_install_new(struct ospf_lsa_header *lsa, void *body, struct ospf_area *oa)
}
else
{
if((en->lsa.length!=lsa->length)||(en->lsa.options!=lsa->options)||
((en->lsa.age==LSA_MAXAGE)||(lsa->age==LSA_MAXAGE))) change=1;
if ((en->lsa.length != lsa->length) || (en->lsa.options != lsa->options)
|| ((en->lsa.age == LSA_MAXAGE) || (lsa->age == LSA_MAXAGE)))
change = 1;
else
{
u8 *k = en->lsa_body, *l = body;
@ -454,7 +469,8 @@ lsa_install_new(struct ospf_lsa_header *lsa, void *body, struct ospf_area *oa)
s_add_tail(&oa->lsal, SNODE en);
en->inst_t = now;
if(en->lsa_body!=NULL) mb_free(en->lsa_body);
if (en->lsa_body != NULL)
mb_free(en->lsa_body);
en->lsa_body = body;
memcpy(&en->lsa, lsa, sizeof(struct ospf_lsa_header));
en->ini_age = en->lsa.age;

7
proto/ospf/lsalib.h
View file

@ -16,13 +16,14 @@ void htonlsab(void *h, void *n, u8 type, u16 len);
void ntohlsab(void *n, void *h, u8 type, u16 len);
void lsasum_calculate(struct ospf_lsa_header *header, void *body,
struct proto_ospf *p);
u16 lsasum_check(struct ospf_lsa_header *h,void *body,struct proto_ospf *po);
u16 lsasum_check(struct ospf_lsa_header *h, void *body,
struct proto_ospf *po);
#define CMP_NEWER 1
#define CMP_SAME 0
#define CMP_OLDER -1
int lsa_comp(struct ospf_lsa_header *l1, struct ospf_lsa_header *l2);
struct top_hash_entry *lsa_install_new(struct ospf_lsa_header *lsa, void *body,
struct ospf_area *oa);
struct top_hash_entry *lsa_install_new(struct ospf_lsa_header *lsa,
void *body, struct ospf_area *oa);
void ospf_age(struct ospf_area *oa);
void flush_lsa(struct top_hash_entry *en, struct ospf_area *oa);

3
proto/ospf/lsreq.c
View file

@ -109,7 +109,8 @@ ospf_lsreq_receive(struct ospf_lsreq_packet *ps,
if (ospf_hash_find(n->ifa->oa->gr, llsh->lsh.id, llsh->lsh.rt,
llsh->lsh.type) == NULL)
{
log(L_WARN "Received bad LS req from: %I looking: RT: %I, ID: %I, Type: %u",
log(L_WARN
"Received bad LS req from: %I looking: RT: %I, ID: %I, Type: %u",
n->ip, lsh->rt, lsh->id, lsh->type);
ospf_neigh_sm(n, INM_BADLSREQ);
rfree(upslab);

127
proto/ospf/neighbor.c
View file

@ -15,12 +15,15 @@ char *ospf_ns[]={" down",
" exstart",
"exchange",
" loading",
" full"};
" full"
};
const char *ospf_inm[]={ "hello received", "neighbor start", "2-way received",
const char *ospf_inm[] =
{ "hello received", "neighbor start", "2-way received",
"negotiation done", "exstart done", "bad ls request", "load done",
"adjacency ok?", "sequence mismatch", "1-way received", "kill neighbor",
"inactivity timer", "line down" };
"inactivity timer", "line down"
};
void neighbor_timer_hook(timer * timer);
@ -132,7 +135,8 @@ neigh_chstate(struct ospf_neighbor *n, u8 state)
n->myimms.bit.m = 1;
n->myimms.bit.i = 1;
}
if(state>NEIGHBOR_EXSTART) n->myimms.bit.i=0;
if (state > NEIGHBOR_EXSTART)
n->myimms.bit.i = 0;
}
}
@ -153,9 +157,11 @@ electbdr(list nl)
{
if (n1 != NULL)
{
if(neigh->priority>n1->priority) n1=neigh;
if (neigh->priority > n1->priority)
n1 = neigh;
else if (neigh->priority == n1->priority)
if(neigh->rid>n1->rid) n1=neigh;
if (neigh->rid > n1->rid)
n1 = neigh;
}
else
{
@ -166,9 +172,11 @@ electbdr(list nl)
{
if (n2 != NULL)
{
if(neigh->priority>n2->priority) n2=neigh;
if (neigh->priority > n2->priority)
n2 = neigh;
else if (neigh->priority == n2->priority)
if(neigh->rid>n2->rid) n2=neigh;
if (neigh->rid > n2->rid)
n2 = neigh;
}
else
{
@ -177,7 +185,8 @@ electbdr(list nl)
}
}
}
if(n1==NULL) n1=n2;
if (n1 == NULL)
n1 = n2;
return (n1);
}
@ -196,9 +205,11 @@ electdr(list nl)
{
if (n != NULL)
{
if(neigh->priority>n->priority) n=neigh;
if (neigh->priority > n->priority)
n = neigh;
else if (neigh->priority == n->priority)
if(neigh->rid>n->rid) n=neigh;
if (neigh->rid > n->rid)
n = neigh;
}
else
{
@ -239,12 +250,14 @@ can_do_adj(struct ospf_neighbor *n)
break;
case OSPF_IS_DROTHER:
if (((n->rid == ifa->drid) || (n->rid == ifa->bdrid))
&& (n->state>=NEIGHBOR_2WAY)) i=1;
&& (n->state >= NEIGHBOR_2WAY))
i = 1;
break;
case OSPF_IS_PTP:
case OSPF_IS_BACKUP:
case OSPF_IS_DR:
if(n->state>=NEIGHBOR_2WAY) i=1;
if (n->state >= NEIGHBOR_2WAY)
i = 1;
break;
default:
bug("%s: Iface %s in unknown state?", p->name, ifa->iface->name);
@ -277,8 +290,9 @@ ospf_neigh_sm(struct ospf_neighbor *n, int event)
struct proto_ospf *po = n->ifa->proto;
struct proto *p = (struct proto *) po;
OSPF_TRACE(D_EVENTS, "Neighbor state machine for neighbor %I, event \"%s\".",
n->ip, ospf_inm[event]);
OSPF_TRACE(D_EVENTS,
"Neighbor state machine for neighbor %I, event \"%s\".", n->ip,
ospf_inm[event]);
switch (event)
{
@ -298,7 +312,8 @@ ospf_neigh_sm(struct ospf_neighbor *n, int event)
}
break;
case INM_2WAYREC:
if(n->state<NEIGHBOR_2WAY) neigh_chstate(n,NEIGHBOR_2WAY);
if (n->state < NEIGHBOR_2WAY)
neigh_chstate(n, NEIGHBOR_2WAY);
if ((n->state == NEIGHBOR_2WAY) && can_do_adj(n))
neigh_chstate(n, NEIGHBOR_EXSTART);
break;
@ -315,7 +330,8 @@ ospf_neigh_sm(struct ospf_neighbor *n, int event)
mb_free(no);
}
}
else bug("NEGDONE and I'm not in EXSTART?");
else
bug("NEGDONE and I'm not in EXSTART?");
break;
case INM_EXDONE:
neigh_chstate(n, NEIGHBOR_LOADING);
@ -397,31 +413,41 @@ bdr_election(struct ospf_iface *ifa)
nbdr = electbdr(ifa->neigh_list);
ndr = electdr(ifa->neigh_list);
if(ndr==NULL) ndr=nbdr;
if (ndr == NULL)
ndr = nbdr;
if (((ifa->drid == myid) && (ndr != &me))
|| ((ifa->drid != myid) && (ndr == &me))
|| ((ifa->bdrid == myid) && (nbdr != &me))
|| ((ifa->bdrid != myid) && (nbdr == &me)))
{
if(ndr==NULL) ifa->drip=me.dr=ipa_from_u32(0);
else ifa->drip=me.dr=ndr->ip;
if (ndr == NULL)
ifa->drip = me.dr = ipa_from_u32(0);
else
ifa->drip = me.dr = ndr->ip;
if(nbdr==NULL) ifa->bdrip=me.bdr=ipa_from_u32(0);
else ifa->bdrip=me.bdr=nbdr->ip;
if (nbdr == NULL)
ifa->bdrip = me.bdr = ipa_from_u32(0);
else
ifa->bdrip = me.bdr = nbdr->ip;
nbdr = electbdr(ifa->neigh_list);
ndr = electdr(ifa->neigh_list);
}
if(ndr==NULL) ndrip=ipa_from_u32(0);
else ndrip=ndr->ip;
if (ndr == NULL)
ndrip = ipa_from_u32(0);
else
ndrip = ndr->ip;
if(nbdr==NULL) nbdrip=ipa_from_u32(0);
else nbdrip=nbdr->ip;
if (nbdr == NULL)
nbdrip = ipa_from_u32(0);
else
nbdrip = nbdr->ip;
doadj = 0;
if((ipa_compare(ifa->drip,ndrip)!=0) || (ipa_compare(ifa->bdrip,nbdrip)!=0))
if ((ipa_compare(ifa->drip, ndrip) != 0)
|| (ipa_compare(ifa->bdrip, nbdrip) != 0))
doadj = 1;
if (ndr == NULL)
@ -448,11 +474,14 @@ bdr_election(struct ospf_iface *ifa)
DBG("DR=%I, BDR=%I\n", ifa->drid, ifa->bdrid);
if(myid==ifa->drid) ospf_iface_chstate(ifa, OSPF_IS_DR);
if (myid == ifa->drid)
ospf_iface_chstate(ifa, OSPF_IS_DR);
else
{
if(myid==ifa->bdrid) ospf_iface_chstate(ifa, OSPF_IS_BACKUP);
else ospf_iface_chstate(ifa, OSPF_IS_DROTHER);
if (myid == ifa->bdrid)
ospf_iface_chstate(ifa, OSPF_IS_BACKUP);
else
ospf_iface_chstate(ifa, OSPF_IS_DROTHER);
}
rem_node(NODE & me);
@ -471,8 +500,7 @@ find_neigh(struct ospf_iface *ifa, u32 rid)
{
struct ospf_neighbor *n;
WALK_LIST (n, ifa->neigh_list)
if(n->rid == rid)
WALK_LIST(n, ifa->neigh_list) if (n->rid == rid)
return n;
return NULL;
}
@ -485,14 +513,14 @@ find_neigh_noifa(struct proto_ospf *po, u32 rid)
struct ospf_neighbor *n = NULL, *m;
struct ospf_iface *ifa;
WALK_LIST (ifa, po->iface_list)
if((m=find_neigh(ifa, rid))!=NULL)
WALK_LIST(ifa, po->iface_list) if ((m = find_neigh(ifa, rid)) != NULL)
{
if (m->state >= NEIGHBOR_2WAY)
{
if(n==NULL) n=m;
else
if(m->ifa->cost < n->ifa->cost) n=m;
if (n == NULL)
n = m;
else if (m->ifa->cost < n->ifa->cost)
n = m;
}
}
return n;
@ -503,7 +531,8 @@ ospf_find_area(struct proto_ospf *po, u32 aid)
{
struct ospf_area *oa;
WALK_LIST(NODE oa, po->area_list)
if(((struct ospf_area *)oa)->areaid==aid) return oa;
if (((struct ospf_area *) oa)->areaid == aid)
return oa;
return NULL;
}
@ -518,7 +547,8 @@ neighbor_timer_hook(timer *timer)
n = (struct ospf_neighbor *) timer->data;
ifa = n->ifa;
p = (struct proto *) (ifa->proto);
OSPF_TRACE(D_EVENTS,"Inactivity timer fired on interface %s for neighbor %I.",
OSPF_TRACE(D_EVENTS,
"Inactivity timer fired on interface %s for neighbor %I.",
ifa->iface->name, n->ip);
ospf_neigh_remove(n);
}
@ -557,9 +587,12 @@ ospf_sh_neigh_info(struct ospf_neighbor *n)
bsprintf(etime, "%02u:%02u", min, sec);
}
if(n->rid==ifa->drid) pos="dr ";
if(n->rid==ifa->bdrid) pos="bdr ";
if(n->ifa->type==OSPF_IT_PTP) pos="ptp ";
if (n->rid == ifa->drid)
pos = "dr ";
if (n->rid == ifa->bdrid)
pos = "bdr ";
if (n->ifa->type == OSPF_IT_PTP)
pos = "ptp ";
cli_msg(-1013, "%-1I\t%3u\t%s/%s\t%-5s\t%-1I\t%-10s", n->rid, n->priority,
ospf_ns[n->state], pos, etime, n->ip, ifa->iface->name);
@ -573,9 +606,11 @@ rxmt_timer_hook(timer *timer)
DBG("%s: RXMT timer fired on interface %s for neigh: %I.\n",
p->name, ifa->iface->name, n->ip);
if (n->state < NEIGHBOR_LOADING) ospf_dbdes_send(n);
if (n->state < NEIGHBOR_LOADING)
ospf_dbdes_send(n);
if(n->state < NEIGHBOR_FULL) ospf_lsreq_send(n);
if (n->state < NEIGHBOR_FULL)
ospf_lsreq_send(n);
else
{
if (!EMPTY_SLIST(n->lsrtl))
@ -589,7 +624,8 @@ rxmt_timer_hook(timer *timer)
WALK_SLIST(SNODE en, n->lsrtl)
{
if((SNODE en)->next==(SNODE en)) bug("RTList is cycled");
if ((SNODE en)->next == (SNODE en))
bug("RTList is cycled");
llsh = sl_alloc(upslab);
llsh->lsh.id = en->lsa.id;
llsh->lsh.rt = en->lsa.rt;
@ -610,4 +646,3 @@ ackd_timer_hook(timer *t)
struct ospf_neighbor *n = t->data;
ospf_lsack_send(n, ACKL_DELAY);
}

158
proto/ospf/ospf.c
View file

@ -121,7 +121,8 @@ ospf_start(struct proto *p)
antmp->hidden = anet->hidden;
add_tail(&oa->net_list, NODE antmp);
}
fib_init(&oa->infib,po->proto.pool,sizeof(struct infib),16,init_infib);
fib_init(&oa->infib, po->proto.pool, sizeof(struct infib), 16,
init_infib);
}
return PS_UP;
}
@ -152,7 +153,8 @@ ospf_dump(struct proto *p)
{
OSPF_TRACE(D_EVENTS, "LSA graph dump for area \"%I\" start:", oa->areaid);
ospf_top_dump(oa->gr, p);
OSPF_TRACE(D_EVENTS, "LSA graph dump for area \"%I\" finished", oa->areaid);
OSPF_TRACE(D_EVENTS, "LSA graph dump for area \"%I\" finished",
oa->areaid);
}
neigh_dump_all();
}
@ -181,23 +183,30 @@ ospf_init(struct proto_config *c)
static int
ospf_rte_better(struct rte *new, struct rte *old)
{
if(new->u.ospf.metric1==LSINFINITY) return 0;
if (new->u.ospf.metric1 == LSINFINITY)
return 0;
/* External paths are always longer that internal */
if(((new->attrs->source==RTS_OSPF) || (new->attrs->source==RTS_OSPF_IA))
&& (old->attrs->source==RTS_OSPF_EXT)) return 1;
if(((old->attrs->source==RTS_OSPF) || (old->attrs->source==RTS_OSPF_IA))
&& (new->attrs->source==RTS_OSPF_EXT)) return 0;
if (((new->attrs->source == RTS_OSPF)
|| (new->attrs->source == RTS_OSPF_IA))
&& (old->attrs->source == RTS_OSPF_EXT))
return 1;
if (((old->attrs->source == RTS_OSPF)
|| (old->attrs->source == RTS_OSPF_IA))
&& (new->attrs->source == RTS_OSPF_EXT))
return 0;
if (new->u.ospf.metric2 < old->u.ospf.metric2)
{
if(old->u.ospf.metric2==LSINFINITY) return 0; /* Old is E1, new is E2 */
if (old->u.ospf.metric2 == LSINFINITY)
return 0; /* Old is E1, new is E2 */
return 1; /* Both are E2 */
}
if (new->u.ospf.metric2 > old->u.ospf.metric2)
{
if(new->u.ospf.metric2==LSINFINITY) return 1; /* New is E1, old is E2 */
if (new->u.ospf.metric2 == LSINFINITY)
return 1; /* New is E1, old is E2 */
return 0; /* Both are E2 */
}
@ -207,7 +216,8 @@ ospf_rte_better(struct rte *new, struct rte *old)
* 2) Paths are E1.
*/
if(new->u.ospf.metric1<old->u.ospf.metric1) return 1;
if (new->u.ospf.metric1 < old->u.ospf.metric1)
return 1;
return 0; /* Old is shorter or same */
}
@ -222,9 +232,11 @@ ospf_rte_same(struct rte *new, struct rte *old)
}
static ea_list *
ospf_build_attrs(ea_list *next, struct linpool *pool, u32 m1, u32 m2, u32 tag)
ospf_build_attrs(ea_list * next, struct linpool *pool, u32 m1, u32 m2,
u32 tag)
{
struct ea_list *l = lp_alloc(pool, sizeof(struct ea_list) + 3*sizeof(eattr));
struct ea_list *l =
lp_alloc(pool, sizeof(struct ea_list) + 3 * sizeof(eattr));
l->next = next;
l->flags = EALF_SORTED;
@ -267,10 +279,10 @@ schedule_rtcalc(struct ospf_area *oa)
struct proto_ospf *po = oa->po;
struct proto *p = &po->proto;
if(oa->calcrt) return;
if (oa->calcrt)
return;
OSPF_TRACE(D_EVENTS, "Scheduling RT calculation for area %I.",
oa->areaid);
OSPF_TRACE(D_EVENTS, "Scheduling RT calculation for area %I.", oa->areaid);
oa->calcrt = 1;
}
@ -292,19 +304,22 @@ area_disp(timer *timer)
struct ospf_iface *ifa;
/* Now try to originage rt_lsa */
if(oa->origrt) originate_rt_lsa(oa);
if (oa->origrt)
originate_rt_lsa(oa);
/* Now try to originate network LSA's */
WALK_LIST(ifa, po->iface_list)
{
if(ifa->orignet&&(ifa->an==oa->areaid)) originate_net_lsa(ifa);
if (ifa->orignet && (ifa->an == oa->areaid))
originate_net_lsa(ifa);
}
/* Age LSA DB */
ospf_age(oa);
/* Calculate routing table */
if(oa->calcrt) ospf_rt_spfa(oa);
if (oa->calcrt)
ospf_rt_spfa(oa);
oa->calcrt = 0;
}
@ -320,11 +335,13 @@ area_disp(timer *timer)
*/
int
ospf_import_control(struct proto *p, rte **new, ea_list **attrs, struct linpool *pool)
ospf_import_control(struct proto *p, rte ** new, ea_list ** attrs,
struct linpool *pool)
{
rte *e = *new;
if(p==e->attrs->proto) return -1; /* Reject our own routes */
if (p == e->attrs->proto)
return -1; /* Reject our own routes */
*attrs = ospf_build_attrs(*attrs, pool, LSINFINITY, 10000, 0);
return 0; /* Leave decision to the filters */
}
@ -332,7 +349,8 @@ ospf_import_control(struct proto *p, rte **new, ea_list **attrs, struct linpool
struct ea_list *
ospf_make_tmp_attrs(struct rte *rt, struct linpool *pool)
{
return ospf_build_attrs(NULL, pool, rt->u.ospf.metric1, rt->u.ospf.metric2, rt->u.ospf.tag);
return ospf_build_attrs(NULL, pool, rt->u.ospf.metric1, rt->u.ospf.metric2,
rt->u.ospf.tag);
}
void
@ -361,14 +379,14 @@ ospf_shutdown(struct proto *p)
OSPF_TRACE(D_EVENTS, "Shutdown requested");
/* And send to all my neighbors 1WAY */
WALK_LIST(ifa, po->iface_list)
ospf_iface_shutdown(ifa);
WALK_LIST(ifa, po->iface_list) ospf_iface_shutdown(ifa);
return PS_DOWN;
}
void
ospf_rt_notify(struct proto *p, net *n, rte *new, rte *old UNUSED, ea_list *attrs)
ospf_rt_notify(struct proto *p, net * n, rte * new, rte * old UNUSED,
ea_list * attrs)
{
struct proto_ospf *po = (struct proto_ospf *) p;
@ -415,7 +433,8 @@ ospf_get_status(struct proto *p, byte *buf)
{
struct proto_ospf *po = (struct proto_ospf *) p;
if (p->proto_state == PS_DOWN) buf[0] = 0;
if (p->proto_state == PS_DOWN)
buf[0] = 0;
else
{
struct ospf_iface *ifa;
@ -423,11 +442,13 @@ ospf_get_status(struct proto *p, byte *buf)
int adj = 0;
WALK_LIST(ifa, po->iface_list)
WALK_LIST(n,ifa->neigh_list)
if(n->state==NEIGHBOR_FULL) adj=1;
WALK_LIST(n, ifa->neigh_list) if (n->state == NEIGHBOR_FULL)
adj = 1;
if(adj==0) strcpy(buf, "Alone");
else strcpy(buf, "Running");
if (adj == 0)
strcpy(buf, "Alone");
else
strcpy(buf, "Running");
}
}
@ -443,13 +464,18 @@ ospf_get_route_info(rte *rte, byte *buf, ea_list *attrs UNUSED)
type = 'E';
}
if(rte->u.ospf.metric2!=LSINFINITY) met='2';
if(rte->attrs->source==RTS_OSPF_IA) type='A';
if(rte->attrs->source==RTS_OSPF) type='I';
if (rte->u.ospf.metric2 != LSINFINITY)
met = '2';
if (rte->attrs->source == RTS_OSPF_IA)
type = 'A';
if (rte->attrs->source == RTS_OSPF)
type = 'I';
buf += bsprintf(buf, " %c", type);
if(met!=' ') buf += bsprintf(buf, "%c", met);
if (met != ' ')
buf += bsprintf(buf, "%c", met);
buf += bsprintf(buf, " (%d/%d", rte->pref, rte->u.ospf.metric1);
if(rte->u.ospf.metric2!=LSINFINITY) buf += bsprintf(buf, "/%d", rte->u.ospf.metric2);
if (rte->u.ospf.metric2 != LSINFINITY)
buf += bsprintf(buf, "/%d", rte->u.ospf.metric2);
buf += bsprintf(buf, ")");
if (rte->attrs->source == RTS_OSPF_EXT && rte->u.ospf.tag)
{
@ -462,10 +488,17 @@ ospf_get_attr(eattr *a, byte *buf)
{
switch (a->id)
{
case EA_OSPF_METRIC1: bsprintf(buf, "metric1"); return GA_NAME;
case EA_OSPF_METRIC2: bsprintf(buf, "metric2"); return GA_NAME;
case EA_OSPF_TAG: bsprintf(buf, "tag: %08x", a->u.data); return GA_FULL;
default: return GA_UNKNOWN;
case EA_OSPF_METRIC1:
bsprintf(buf, "metric1");
return GA_NAME;
case EA_OSPF_METRIC2:
bsprintf(buf, "metric2");
return GA_NAME;
case EA_OSPF_TAG:
bsprintf(buf, "tag: %08x", a->u.data);
return GA_FULL;
default:
return GA_UNKNOWN;
}
}
@ -512,13 +545,16 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
while (((NODE(ac1))->next != NULL) && ((NODE(ac2))->next != NULL))
{
if(ac1->areaid!=ac2->areaid) return 0;
if(ac1->stub!=ac2->stub) return 0; /* FIXME: non zero values can change */
if (ac1->areaid != ac2->areaid)
return 0;
if (ac1->stub != ac2->stub)
return 0; /* FIXME: non zero values can change */
WALK_LIST(oa,po->area_list)
if(oa->areaid==ac2->areaid) break;
WALK_LIST(oa, po->area_list) if (oa->areaid == ac2->areaid)
break;
if(!oa) return 0;
if (!oa)
return 0;
if (ac1->tick != ac2->tick)
{
@ -559,7 +595,8 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
{
/* Now reconfigure interface */
if (!(ip2 = (struct ospf_iface_patt *)
iface_patt_match(&ac2->patt_list, ifa->iface))) return 0;
iface_patt_match(&ac2->patt_list, ifa->iface)))
return 0;
/* HELLO TIMER */
if (ip1->helloint != ip2->helloint)
@ -598,8 +635,7 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
{
ifa->strictnbma = ip2->strictnbma;
OSPF_TRACE(D_EVENTS,
"Interface %s is now strict NBMA.",
ifa->iface->name);
"Interface %s is now strict NBMA.", ifa->iface->name);
}
if ((ip1->strictnbma != 0) && (ip2->strictnbma == 0))
{
@ -613,19 +649,15 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
if ((ip1->stub == 0) && (ip2->stub != 0))
{
ifa->stub = ip2->stub;
OSPF_TRACE(D_EVENTS,
"Interface %s is now stub.",
ifa->iface->name);
OSPF_TRACE(D_EVENTS, "Interface %s is now stub.", ifa->iface->name);
}
if ((ip1->stub != 0) && (ip2->stub == 0) &&
((ifa->ioprob & OSPF_I_IP) == 0) &&
(((ifa->ioprob & OSPF_I_MC)==0)||
(ifa->type==OSPF_IT_NBMA)))
(((ifa->ioprob & OSPF_I_MC) == 0) || (ifa->type == OSPF_IT_NBMA)))
{
ifa->stub = ip2->stub;
OSPF_TRACE(D_EVENTS,
"Interface %s is no longer stub.",
ifa->iface->name);
"Interface %s is no longer stub.", ifa->iface->name);
}
/* AUTHENTICATION */
@ -640,8 +672,7 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
{
memcpy(ifa->aukey, ip2->password, 8);
OSPF_TRACE(D_EVENTS,
"Changing password on interface %s",
ifa->iface->name);
"Changing password on interface %s", ifa->iface->name);
}
/* RXMT */
@ -670,7 +701,8 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
ifa->inftransdelay = ip2->inftransdelay;
OSPF_TRACE(D_EVENTS,
"Changing transmit delay on interface %s from %d to %d",
ifa->iface->name,ip1->inftransdelay,ip2->inftransdelay);
ifa->iface->name, ip1->inftransdelay,
ip2->inftransdelay);
}
/* DEAD COUNT */
@ -771,8 +803,8 @@ ospf_sh_neigh(struct proto *p, char *iff)
return;
}
cli_msg(-1013, "%s:", p->name);
cli_msg(-1013,"%-12s\t%3s\t%-15s\t%-5s\t%-12s\t%-10s","Router ID","Pri",
" State", "DTime", "Router IP", "Interface");
cli_msg(-1013, "%-12s\t%3s\t%-15s\t%-5s\t%-12s\t%-10s", "Router ID",
"Pri", " State", "DTime", "Router IP", "Interface");
WALK_LIST(n, ifa->neigh_list) ospf_sh_neigh_info(n);
cli_msg(0, "");
return;
@ -782,8 +814,7 @@ ospf_sh_neigh(struct proto *p, char *iff)
cli_msg(-1013, "%-12s\t%3s\t%-15s\t%-5s\t%-12s\t%-10s", "Router ID", "Pri",
" State", "DTime", "Router IP", "Interface");
WALK_LIST(ifa, po->iface_list)
WALK_LIST(n, ifa->neigh_list)
ospf_sh_neigh_info(n);
WALK_LIST(n, ifa->neigh_list) ospf_sh_neigh_info(n);
cli_msg(0, "");
}
@ -817,11 +848,13 @@ ospf_sh(struct proto *p)
adjno = 0;
WALK_LIST(ifa, po->iface_list)
{
if(oa==ifa->oa) ifano++;
if (oa == ifa->oa)
ifano++;
WALK_LIST(n, ifa->neigh_list)
{
nno++;
if(n->state==NEIGHBOR_FULL) adjno++;
if (n->state == NEIGHBOR_FULL)
adjno++;
}
}
cli_msg(-1014, "\t\tStub:\t%s", oa->stub ? "Yes" : "No");
@ -896,4 +929,3 @@ struct protocol proto_ospf = {
get_status:ospf_get_status,
reconfigure:ospf_reconfigure
};

90
proto/ospf/ospf.h
View file

@ -53,19 +53,22 @@
#define LSINFINITY 0xffff /* RFC says 0xffffff ??? */
#define DISPTICK 7
struct ospf_config {
struct ospf_config
{
struct proto_config c;
int rfc1583;
list area_list;
};
struct nbma_node {
struct nbma_node
{
node n;
ip_addr ip;
int eligible;
};
struct area_net {
struct area_net
{
node n;
struct prefix px;
int hidden;
@ -73,7 +76,8 @@ struct area_net {
int oldactive;
};
struct ospf_area_config {
struct ospf_area_config
{
node n;
u32 areaid;
int stub;
@ -82,7 +86,8 @@ struct ospf_area_config {
list net_list;
};
struct ospf_iface {
struct ospf_iface
{
node n;
struct proto_ospf *proto;
struct iface *iface; /* Nest's iface */
@ -150,7 +155,8 @@ struct ospf_iface {
list nbma_list;
};
struct ospf_packet {
struct ospf_packet
{
u8 version;
u8 type;
#define HELLO_P 1 /* Hello */
@ -167,7 +173,8 @@ struct ospf_packet {
u8 authetication[8];
};
struct ospf_hello_packet {
struct ospf_hello_packet
{
struct ospf_packet ospf_packet;
ip_addr netmask;
u16 helloint;
@ -178,7 +185,8 @@ struct ospf_hello_packet {
ip_addr bdr;
};
struct immsb {
struct immsb
{
#ifdef _BIG_ENDIAN
u8 padding:5;
u8 i:1;
@ -192,12 +200,14 @@ struct immsb {
#endif
};
union imms {
union imms
{
u8 byte;
struct immsb bit;
};
struct ospf_dbdes_packet {
struct ospf_dbdes_packet
{
struct ospf_packet ospf_packet;
u16 iface_mtu;
u8 options;
@ -209,7 +219,8 @@ struct ospf_dbdes_packet {
};
struct ospf_lsa_header {
struct ospf_lsa_header
{
u16 age; /* LS Age */
#define LSA_MAXAGE 3600 /* 1 hour */
#define LSA_CHECKAGE 300 /* 5 minutes */
@ -230,19 +241,22 @@ struct ospf_lsa_header {
u16 length;
};
struct vebb {
struct vebb
{
u8 b:1;
u8 e:1;
u8 v:1;
u8 padding:5;
};
union veb {
union veb
{
u8 byte;
struct vebb bit;
};
struct ospf_lsa_rt {
struct ospf_lsa_rt
{
union veb veb;
#define LSA_RT_V 5
#define LSA_RT_E 6
@ -251,7 +265,8 @@ struct ospf_lsa_rt {
u16 links;
};
struct ospf_lsa_rt_link {
struct ospf_lsa_rt_link
{
u32 id;
u32 data;
u8 type;
@ -263,31 +278,37 @@ struct ospf_lsa_rt_link {
u16 metric;
};
struct ospf_lsa_rt_link_tos { /* Actually we ignore TOS. This is useless */
struct ospf_lsa_rt_link_tos
{ /* Actually we ignore TOS. This is useless */
u8 tos;
u8 padding;
u16 metric;
};
struct ospf_lsa_net {
struct ospf_lsa_net
{
ip_addr netmask;
};
struct ospf_lsa_summ {
struct ospf_lsa_summ
{
ip_addr netmask;
};
struct ospf_lsa_summ_net {
struct ospf_lsa_summ_net
{
u8 tos;
u8 padding;
u16 metric;
};
struct ospf_lsa_ext {
struct ospf_lsa_ext
{
ip_addr netmask;
};
struct ospf_lsa_ext_tos {
struct ospf_lsa_ext_tos
{
u8 etos;
u8 padding;
u16 metric;
@ -295,11 +316,13 @@ struct ospf_lsa_ext_tos {
u32 tag;
};
struct ospf_lsreq_packet {
struct ospf_lsreq_packet
{
struct ospf_packet ospf_packet;
};
struct ospf_lsreq_header {
struct ospf_lsreq_header
{
u16 padd1;
u8 padd2;
u8 type;
@ -307,17 +330,20 @@ struct ospf_lsreq_header {
u32 rt; /* Advertising router */
};
struct l_lsr_head {
struct l_lsr_head
{
node n;
struct ospf_lsreq_header lsh;
};
struct ospf_lsupd_packet {
struct ospf_lsupd_packet
{
struct ospf_packet ospf_packet;
u32 lsano; /* Number of LSA's */
};
struct ospf_lsack_packet {
struct ospf_lsack_packet
{
struct ospf_packet ospf_packet;
};
@ -387,7 +413,8 @@ struct ospf_neighbor
#define INM_INACTTIM 11 /* Inactivity timer */
#define INM_LLDOWN 12 /* Line down */
struct ospf_area {
struct ospf_area
{
node n;
u32 areaid;
timer *disp_timer; /* Area's dispatcher hear beat */
@ -405,7 +432,8 @@ struct ospf_area {
unsigned tick;
};
struct proto_ospf {
struct proto_ospf
{
struct proto proto;
list iface_list; /* Interfaces we really use */
list area_list;
@ -415,7 +443,8 @@ struct proto_ospf {
int ebit; /* Did I originate any ext lsa? */
};
struct ospf_iface_patt {
struct ospf_iface_patt
{
struct iface_patt i;
int cost;
int helloint;
@ -441,7 +470,8 @@ int ospf_import_control(struct proto *p, rte **new, ea_list **attrs,
struct linpool *pool);
struct ea_list *ospf_make_tmp_attrs(struct rte *rt, struct linpool *pool);
void ospf_store_tmp_attrs(struct rte *rt, struct ea_list *attrs);
void ospf_rt_notify(struct proto *p, net *n, rte *new, rte *old,ea_list *attrs);
void ospf_rt_notify(struct proto *p, net * n, rte * new, rte * old,
ea_list * attrs);
void area_disp(timer * timer);
void schedule_rt_lsa(struct ospf_area *oa);
void schedule_rtcalc(struct ospf_area *oa);

18
proto/ospf/packet.c
View file

@ -101,16 +101,14 @@ ospf_rx_hook (sock *sk, int size)
if ((unsigned) size < sizeof(struct ospf_packet))
{
log ("%s: Bad OSPF packet received: too short (%u bytes)", p->name,
size);
log("%s: Bad OSPF packet received: too short (%u bytes)", p->name, size);
log("%s: Discarding", p->name);
return (1);
}
if ((ntohs(ps->length) != size) || (size != (4 * (size / 4))))
{
log ("%s: Bad OSPF packet received: size field does not match",
p->name);
log("%s: Bad OSPF packet received: size field does not match", p->name);
log("%s: Discarding", p->name);
return (1);
}
@ -138,24 +136,21 @@ ospf_rx_hook (sock *sk, int size)
if (ntohl(ps->areaid) != ifa->an)
{
log ("%s: Bad OSPF packet received: other area %ld", p->name,
ps->areaid);
log("%s: Bad OSPF packet received: other area %ld", p->name, ps->areaid);
log("%s: Discarding", p->name);
return (1);
}
if (ntohl(ps->routerid) == p->cf->global->router_id)
{
log ("%s: Bad OSPF packet received: received my own router ID!",
p->name);
log("%s: Bad OSPF packet received: received my own router ID!", p->name);
log("%s: Discarding", p->name);
return (1);
}
if (ntohl(ps->routerid) == 0)
{
log ("%s: Bad OSPF packet received: Id 0.0.0.0 is not allowed.",
p->name);
log("%s: Bad OSPF packet received: Id 0.0.0.0 is not allowed.", p->name);
log("%s: Discarding", p->name);
return (1);
}
@ -172,8 +167,7 @@ ospf_rx_hook (sock *sk, int size)
{
case HELLO_P:
DBG("%s: Hello received.\n", p->name);
ospf_hello_receive((struct ospf_hello_packet *) ps, ifa, size,
sk->faddr);
ospf_hello_receive((struct ospf_hello_packet *) ps, ifa, size, sk->faddr);
break;
case DBDES_P:
DBG("%s: Database description received.\n", p->name);

111
proto/ospf/rt.c
View file

@ -60,7 +60,8 @@ ospf_rt_spfa(struct ospf_area *oa)
OSPF_TRACE(D_EVENTS, "Starting routing table calculation for area %I",
oa->areaid);
if(oa->rt==NULL) return;
if (oa->rt == NULL)
return;
FIB_WALK(in, nftmp)
{
@ -99,7 +100,8 @@ ospf_rt_spfa(struct ospf_area *oa)
{
case LSA_T_RT:
rt = (struct ospf_lsa_rt *) act->lsa_body;
if(rt->veb.bit.v) oa->trcap=1;
if (rt->veb.bit.v)
oa->trcap = 1;
rr = (struct ospf_lsa_rt_link *) (rt + 1);
DBG(" Number of links: %u\n", rt->links);
for (i = 0; i < rt->links; i++)
@ -117,14 +119,17 @@ ospf_rt_spfa(struct ospf_area *oa)
if (nf->metric > (met = act->dist + rtl->metric))
{
DBG(" Adding stub route....\n");
if(oa->rt==act) break;
if(act->nhi==NULL) break;
if (oa->rt == act)
break;
if (act->nhi == NULL)
break;
nf->metric = met;
nf->en = act;
DBG(" Adding stub route: %I\n", ip);
DBG(" Next hop=%I\n", nf->en->nh);
}
else DBG(" NOT adding stub route: %I\n",ip);
else
DBG(" NOT adding stub route: %I\n", ip);
break;
case LSART_VLNK:
DBG("Ignoring\n");
@ -132,8 +137,10 @@ ospf_rt_spfa(struct ospf_area *oa)
break;
case LSART_NET:
tmp = ospf_hash_find(oa->gr, rtl->id, rtl->id, LSA_T_NET);
if(tmp==NULL) DBG("Not found!\n");
else DBG("Found. :-)\n");
if (tmp == NULL)
DBG("Not found!\n");
else
DBG("Found. :-)\n");
break;
case LSART_PTP:
tmp = ospf_hash_find(oa->gr, rtl->id, rtl->id, LSA_T_RT);
@ -143,7 +150,8 @@ ospf_rt_spfa(struct ospf_area *oa)
log("Unknown link type in router lsa.");
break;
}
if(tmp) DBG("Going to add cand, Mydist: %u, Req: %u\n",
if (tmp)
DBG("Going to add cand, Mydist: %u, Req: %u\n",
tmp->dist, act->dist + rtl->metric);
add_cand(&oa->cand, tmp, act, act->dist + rtl->metric, oa);
}
@ -164,8 +172,10 @@ ospf_rt_spfa(struct ospf_area *oa)
{
DBG(" Working on router %I ", *(rts + i));
tmp = ospf_hash_find(oa->gr, *(rts + i), *(rts + i), LSA_T_RT);
if(tmp!=NULL) DBG("Found :-)\n");
else DBG("Not found!\n");
if (tmp != NULL)
DBG("Found :-)\n");
else
DBG("Not found!\n");
add_cand(&oa->cand, tmp, act, act->dist, oa);
}
break;
@ -228,8 +238,10 @@ again:
a0.source = RTS_OSPF;
a0.scope = SCOPE_UNIVERSE;
a0.cast = RTC_UNICAST;
if(ipa_to_u32(en->nh)==0) a0.dest=RTD_DEVICE;
else a0.dest=RTD_ROUTER;
if (ipa_to_u32(en->nh) == 0)
a0.dest = RTD_DEVICE;
else
a0.dest = RTD_ROUTER;
a0.flags = 0;
a0.aflags = 0;
a0.iface = en->nhi;
@ -297,16 +309,21 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
WALK_LIST(oa, po->area_list)
{
if(!oa->stub) break;
if (!oa->stub)
break;
}
if(oa==NULL) return;
if (oa == NULL)
return;
WALK_SLIST(en, oa->lsal)
{
if(en->lsa.type!=LSA_T_EXT) continue;
if(en->lsa.age==LSA_MAXAGE) continue;
if(en->lsa.rt==p->cf->global->router_id) continue;
if (en->lsa.type != LSA_T_EXT)
continue;
if (en->lsa.age == LSA_MAXAGE)
continue;
if (en->lsa.rt == p->cf->global->router_id)
continue;
le = en->lsa_body;
lt = (struct ospf_lsa_ext_tos *) (le + 1);
@ -314,7 +331,8 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
DBG("%s: Working on LSA. ID: %I, RT: %I, Type: %u, Mask %I\n",
p->name, en->lsa.id, en->lsa.rt, en->lsa.type, le->netmask);
if(lt->metric==LSINFINITY) continue;
if (lt->metric == LSINFINITY)
continue;
ip = ipa_and(ipa_from_u32(en->lsa.id), le->netmask);
mlen = ipa_mklen(le->netmask);
if ((mlen < 0) || (mlen > 32))
@ -328,24 +346,30 @@ ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
WALK_LIST(atmp, po->area_list)
{
if((nf=fib_find(&atmp->infib,&ip, mlen))!=NULL) break;
if ((nf = fib_find(&atmp->infib, &ip, mlen)) != NULL)
break;
}
if(nf!=NULL) continue; /* Some intra area path exists */
if (nf != NULL)
continue; /* Some intra area path exists */
absr = NULL;
absroa = NULL;
nnhi = NULL;
nnh = IPA_NONE;
met=0;met2=0;tag=0;
met = 0;
met2 = 0;
tag = 0;
WALK_LIST(atmp, po->area_list) /*
* Find shortest path
* to advertising router
*/
{
if((etmp=ospf_hash_find(atmp->gr,en->lsa.rt,en->lsa.rt,LSA_T_RT))!=NULL)
if ((etmp =
ospf_hash_find(atmp->gr, en->lsa.rt, en->lsa.rt,
LSA_T_RT)) != NULL)
{
if ((absr == NULL) || (absr->dist > etmp->dist) ||
((etmp->dist == absr->dist) && (absroa->areaid < atmp->areaid)))
@ -536,24 +560,30 @@ add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
int added = 0;
struct top_hash_entry *act;
if(en==NULL) return;
if(en->lsa.age==LSA_MAXAGE) return;
if (en == NULL)
return;
if (en->lsa.age == LSA_MAXAGE)
return;
/* FIXME Does it have link back? Test it! */
if(en->color==INSPF) return;
if (en->color == INSPF)
return;
if(dist>=en->dist) return;
if (dist >= en->dist)
return;
/*
* FIXME The line above is not a bug, but we don't support
* multiple next hops. I'll start as soon as nest will
*/
DBG(" Adding candidate: rt: %I, id: %I, type: %u\n",en->lsa.rt,en->lsa.id,en->lsa.type);
DBG(" Adding candidate: rt: %I, id: %I, type: %u\n", en->lsa.rt,
en->lsa.id, en->lsa.type);
en->nhi = NULL;
en->nh = IPA_NONE;
calc_next_hop(en, par, oa);
if(!en->nhi) return; /* We cannot find next hop, ignore it */
if (!en->nhi)
return; /* We cannot find next hop, ignore it */
if (en->color == CANDIDATE) /* We found a shorter path */
{
@ -577,8 +607,10 @@ add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
if ((act->dist > dist) ||
((act->dist == dist) && (act->lsa.type == LSA_T_NET)))
{
if(prev==NULL) add_head(l,&en->cn);
else insert_node(&en->cn,prev);
if (prev == NULL)
add_head(l, &en->cn);
else
insert_node(&en->cn, prev);
added = 1;
break;
}
@ -617,7 +649,8 @@ calc_next_hop(struct top_hash_entry *en, struct top_hash_entry *par,
if (en->lsa.rt == myrid)
{
WALK_LIST(ifa, po->iface_list)
if(ipa_compare(ifa->iface->addr->ip,ipa_from_u32(en->lsa.id))==0)
if (ipa_compare(ifa->iface->addr->ip, ipa_from_u32(en->lsa.id)) ==
0)
{
en->nhi = ifa->iface;
return;
@ -630,13 +663,15 @@ calc_next_hop(struct top_hash_entry *en, struct top_hash_entry *par,
{
ip_addr ip = ipa_from_u32(en->lsa.id);
nn = neigh_find(p, &ip, 0);
if(nn) en->nhi=nn->iface;
if (nn)
en->nhi = nn->iface;
return;
}
}
else
{
if((neigh=find_neigh_noifa(po,en->lsa.rt))==NULL) return;
if ((neigh = find_neigh_noifa(po, en->lsa.rt)) == NULL)
return;
en->nhi = neigh->ifa->iface;
en->nh = neigh->ip; /* Yes, neighbor is it's own next hop */
return;
@ -645,17 +680,20 @@ calc_next_hop(struct top_hash_entry *en, struct top_hash_entry *par,
if (par->lsa.type == LSA_T_NET)
{
if(en->lsa.type==LSA_T_NET) bug("Parent for net is net?");
if (en->lsa.type == LSA_T_NET)
bug("Parent for net is net?");
if ((en->nhi = par->nhi) == NULL)
bug("Did not find next hop interface for INSPF lsa!");
if((neigh=find_neigh_noifa(po,en->lsa.rt))==NULL) return;
if ((neigh = find_neigh_noifa(po, en->lsa.rt)) == NULL)
return;
en->nhi = neigh->ifa->iface;
en->nh = neigh->ip; /* Yes, neighbor is it's own next hop */
return;
}
else /* Parent is some RT neighbor */
{
log(L_ERR "Router's parent has no next hop. (EN=%I, PAR=%I)", en->lsa.id, par->lsa.id);
log(L_ERR "Router's parent has no next hop. (EN=%I, PAR=%I)",
en->lsa.id, par->lsa.id);
/* I hoped this would never happen */
return;
}
@ -664,4 +702,3 @@ calc_next_hop(struct top_hash_entry *en, struct top_hash_entry *par,
en->nhi = par->nhi;
DBG(" Next hop calculated: %I.\n", en->nh);
}

6
proto/ospf/rt.h
View file

@ -10,7 +10,8 @@
#ifndef _BIRD_OSPF_RT_H_
#define _BIRD_OSPF_RT_H_
struct infib {
struct infib
{
struct fib_node fn;
u16 metric;
u16 oldmetric;
@ -18,7 +19,8 @@ struct infib {
struct top_hash_entry *olden;
};
struct extfib {
struct extfib
{
struct fib_node fn;
u16 metric;
u16 metric2;