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Minor bug fix in neighbor state machine.

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This commit is contained in:
Ondrej Filip 2004-05-31 13:22:49 +00:00
parent de259a41e3
commit 781aa475aa
4 changed files with 24 additions and 11 deletions
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18
proto/ospf/dbdes.c
View file

@ -39,6 +39,7 @@ ospf_dbdes_tx(struct ospf_neighbor *n)
switch(n->state)
{
case NEIGHBOR_EXSTART: /* Send empty packets */
n->myimms.bit.i=1;
pkt=(struct ospf_dbdes_packet *)(ifa->ip_sk->tbuf);
op=(struct ospf_packet *)pkt;
fill_ospf_pkt_hdr(ifa, pkt, DBDES_P);
@ -55,6 +56,8 @@ ospf_dbdes_tx(struct ospf_neighbor *n)
break;
case NEIGHBOR_EXCHANGE:
n->myimms.bit.i=0;
if(((n->myimms.bit.ms) && (n->dds==n->ddr+1)) ||
((!(n->myimms.bit.ms)) && (n->dds==n->ddr)))
{
@ -139,6 +142,7 @@ ospf_dbdes_tx(struct ospf_neighbor *n)
{
ospf_neigh_sm(n, INM_EXDONE);
if(n->myimms.bit.ms) tm_stop(n->rxmt_timer);
else tm_start(n->rxmt_timer,ifa->rxmtint);
}
}
break;
@ -277,7 +281,7 @@ ospf_dbdes_rx(struct ospf_dbdes_packet *ps, struct proto *p,
break;
}
}
if(ps->imms.bit.i) break;
case NEIGHBOR_EXCHANGE:
if((ps->imms.byte==n->imms.byte) && (ps->options==n->options) &&
(ntohl(ps->ddseq)==n->ddr))
@ -295,14 +299,14 @@ ospf_dbdes_rx(struct ospf_dbdes_packet *ps, struct proto *p,
if(ps->imms.bit.ms!=n->imms.bit.ms) /* M/S bit differs */
{
DBG("SEQMIS-BIT-MS\n");
log("SEQMIS-BIT-MS\n");
ospf_neigh_sm(n, INM_SEQMIS);
break;
}
if(ps->imms.bit.i) /* I bit is set */
{
DBG("SEQMIS-BIT-I\n");
log("SEQMIS-BIT-I\n");
ospf_neigh_sm(n, INM_SEQMIS);
break;
}
@ -311,7 +315,7 @@ ospf_dbdes_rx(struct ospf_dbdes_packet *ps, struct proto *p,
if(ps->options!=n->options) /* Options differs */
{
DBG("SEQMIS-OPT\n");
log("SEQMIS-OPT\n");
ospf_neigh_sm(n, INM_SEQMIS);
break;
}
@ -320,7 +324,7 @@ ospf_dbdes_rx(struct ospf_dbdes_packet *ps, struct proto *p,
{
if(ntohl(ps->ddseq)!=n->dds) /* MASTER */
{
DBG("SEQMIS-MASTER\n");
log("SEQMIS-MASTER\n");
ospf_neigh_sm(n, INM_SEQMIS);
break;
}
@ -341,7 +345,7 @@ ospf_dbdes_rx(struct ospf_dbdes_packet *ps, struct proto *p,
{
if(ntohl(ps->ddseq)!=(n->dds+1)) /* SLAVE */
{
DBG("SEQMIS-SLAVE\n");
log("SEQMIS-SLAVE\n");
ospf_neigh_sm(n, INM_SEQMIS);
break;
}
@ -362,7 +366,7 @@ ospf_dbdes_rx(struct ospf_dbdes_packet *ps, struct proto *p,
}
else
{
DBG("SEQMIS-FULL\n");
log("SEQMIS-FULL\n");
ospf_neigh_sm(n, INM_SEQMIS);
}
break;

5
proto/ospf/hello.c
View file

@ -7,6 +7,8 @@
*/
#include "ospf.h"
#include <sys/socket.h>
#include "lib/sysio.h"
void
install_inactim(struct ospf_neighbor *n)
@ -59,8 +61,7 @@ ospf_hello_rx(struct ospf_hello_packet *ps, struct proto *p,
{
u32 nrid, *pnrid;
struct ospf_neighbor *neigh,*n;
u8 twoway,oldpriority;
u32 i;
u8 i,twoway,oldpriority;
ip_addr olddr,oldbdr;
ip_addr mask;
char *beg=": Bad OSPF hello packet from ", *rec=" received: ";

6
proto/ospf/iface.c
View file

@ -47,8 +47,9 @@ iface_chstate(struct ospf_iface *ifa, u8 state)
DBG("%s: Adding new multicast socket for (B)DR\n", p->name);
ifa->dr_sk=sk_new(p->pool);
ifa->dr_sk->type=SK_IP_MC;
ifa->dr_sk->sport=0;
ifa->dr_sk->dport=OSPF_PROTO;
ifa->dr_sk->saddr=AllDRouters;
ifa->dr_sk->saddr=ipa_from_u32(0);
ifa->dr_sk->daddr=AllDRouters;
ifa->dr_sk->tos=IP_PREC_INTERNET_CONTROL;
ifa->dr_sk->ttl=1;
@ -222,8 +223,9 @@ ospf_open_mc_socket(struct ospf_iface *ifa)
mcsk=sk_new(p->pool);
mcsk->type=SK_IP_MC;
mcsk->sport=0;
mcsk->dport=OSPF_PROTO;
mcsk->saddr=AllSPFRouters;
mcsk->saddr=ipa_from_u32(0);
mcsk->daddr=AllSPFRouters;
mcsk->tos=IP_PREC_INTERNET_CONTROL;
mcsk->ttl=1;

6
proto/ospf/neighbor.c
View file

@ -67,6 +67,11 @@ neigh_chstate(struct ospf_neighbor *n, u8 state)
schedule_rt_lsa(ifa->oa);
schedule_net_lsa(ifa);
}
if(oldstate>=NEIGHBOR_EXSTART && state<NEIGHBOR_EXSTART)
{
/* Stop RXMT timer */
tm_stop(n->rxmt_timer);
}
if(state==NEIGHBOR_EXSTART)
{
if(n->adj==0) /* First time adjacency */
@ -294,6 +299,7 @@ ospf_neigh_sm(struct ospf_neighbor *n, int event)
}
break;
case INM_SEQMIS:
OSPF_TRACE(D_EVENTS, "Seq mis!");
case INM_BADLSREQ:
OSPF_TRACE(D_EVENTS, "Bad LS req!");
if(n->state>=NEIGHBOR_EXCHANGE)