1 files changed, 125 insertions, 113 deletions

diff --git a/proto/ospf/hello.c b/proto/ospf/hello.c
index 2f7baac..6837858 100644
--- a/proto/ospf/hello.c
+++ b/proto/ospf/hello.c
@@ -9,112 +9,115 @@
 #include "ospf.h"
 
 void
-ospf_hello_receive(struct ospf_hello_packet *ps, struct proto *p,
-  struct ospf_iface *ifa, int size, ip_addr faddr)
+ospf_hello_receive(struct ospf_hello_packet *ps,
+		   struct ospf_iface *ifa, int size, ip_addr faddr)
 {
   u32 nrid, *pnrid;
-  struct ospf_neighbor *neigh,*n;
-  u8 i,twoway,oldpriority;
-  ip_addr olddr,oldbdr;
+  struct ospf_neighbor *neigh, *n;
+  u8 i, twoway, oldpriority;
+  ip_addr olddr, oldbdr;
   ip_addr mask;
-  char *beg=": Bad OSPF hello packet from ", *rec=" received: ";
-  int eligible=0;
+  char *beg = "Bad OSPF hello packet from ", *rec = " received: ";
+  int eligible = 0;
   pool *pool;
+  struct proto *p = (struct proto *) ifa->proto;
 
-  nrid=ntohl(((struct ospf_packet *)ps)->routerid);
+  nrid = ntohl(((struct ospf_packet *) ps)->routerid);
 
-  OSPF_TRACE(D_PACKETS, "Received hello from %I via %s",faddr,ifa->iface->name);
-  mask=ps->netmask;
+  OSPF_TRACE(D_PACKETS, "Received hello from %I via %s", faddr,
+	     ifa->iface->name);
+  mask = ps->netmask;
   ipa_ntoh(mask);
 
-  if((unsigned)ipa_mklen(mask)!=ifa->iface->addr->pxlen)
+  if ((unsigned) ipa_mklen(mask) != ifa->iface->addr->pxlen)
   {
-    log("%s%s%I%sbad netmask %I.", p->name, beg, nrid, rec,
-      mask);
+    log(L_ERR, "%s%I%sbad netmask %I.", beg, nrid, rec, mask);
     return;
   }
-  
-  if(ntohs(ps->helloint)!=ifa->helloint)
+
+  if (ntohs(ps->helloint) != ifa->helloint)
   {
-    log("%s%s%I%shello interval mismatch.", p->name, beg, faddr, rec);
+    log(L_WARN "%s%I%shello interval mismatch.", beg, faddr, rec);
     return;
   }
 
-  if(ntohl(ps->deadint)!=ifa->helloint*ifa->deadc)
+  if (ntohl(ps->deadint) != ifa->helloint * ifa->deadc)
   {
-    log("%s%s%I%sdead interval mismatch.", p->name, beg, faddr, rec);
+    log(L_ERR "%s%I%sdead interval mismatch.", beg, faddr, rec);
     return;
   }
 
-  if(ps->options!=ifa->options)
+  if (ps->options != ifa->options)
   {
-    log("%s%s%I%soptions mismatch.", p->name, beg, faddr, rec);
+    log(L_ERR "%s%I%soptions mismatch.", beg, faddr, rec);
     return;
   }
 
-  if((n=find_neigh(ifa, nrid))==NULL)
+  if ((n = find_neigh(ifa, nrid)) == NULL)
   {
-    if((ifa->type==OSPF_IT_NBMA))
+    if ((ifa->type == OSPF_IT_NBMA))
     {
       struct nbma_node *nn;
-      int found=0;
+      int found = 0;
 
-      WALK_LIST(nn,ifa->nbma_list)
+      WALK_LIST(nn, ifa->nbma_list)
       {
-        if(ipa_compare(faddr,nn->ip)==0)
+	if (ipa_compare(faddr, nn->ip) == 0)
 	{
-	  found=1;
+	  found = 1;
 	  break;
 	}
       }
-      if((found==0)&&(ifa->strictnbma))
+      if ((found == 0) && (ifa->strictnbma))
       {
-        log("%s: Ignoring new neighbor: %I on %s.", p->name, faddr,
-          ifa->iface->name);
+	log(L_WARN "Ignoring new neighbor: %I on %s.", faddr,
+	    ifa->iface->name);
 	return;
       }
-      if(found)
+      if (found)
       {
-        eligible=nn->eligible;
-        if(((ps->priority==0)&&eligible)||((ps->priority>0)&&(eligible==0)))
-        {
-          log("%s: Eligibility mismatch for neighbor: %I on %s", p->name,
-            faddr, ifa->iface->name);
+	eligible = nn->eligible;
+	if (((ps->priority == 0) && eligible)
+	    || ((ps->priority > 0) && (eligible == 0)))
+	{
+	  log(L_ERR "Eligibility mismatch for neighbor: %I on %s",
+	      faddr, ifa->iface->name);
 	  return;
-        }
+	}
       }
     }
     OSPF_TRACE(D_EVENTS, "New neighbor found: %I on %s.", faddr,
-      ifa->iface->name);
+	       ifa->iface->name);
 
     n = ospf_neighbor_new(ifa);
 
-    n->rid=nrid;
-    n->ip=faddr;
-    n->dr=ps->dr;
+    n->rid = nrid;
+    n->ip = faddr;
+    n->dr = ps->dr;
     ipa_ntoh(n->dr);
-    n->bdr=ps->bdr;
+    n->bdr = ps->bdr;
     ipa_ntoh(n->bdr);
-    n->priority=ps->priority;
-    n->options=ps->options;
+    n->priority = ps->priority;
+    n->options = ps->options;
   }
   ospf_neigh_sm(n, INM_HELLOREC);
 
-  pnrid=(u32 *)((struct ospf_hello_packet *)(ps+1));
+  pnrid = (u32 *) ((struct ospf_hello_packet *) (ps + 1));
 
-  twoway=0;
-  for(i=0;i<size-(sizeof(struct ospf_hello_packet));i++)
+  twoway = 0;
+  for (i = 0; i < size - (sizeof(struct ospf_hello_packet)); i++)
   {
-    if(ntohl(*(pnrid+i))==p->cf->global->router_id)
+    if (ntohl(*(pnrid + i)) == p->cf->global->router_id)
     {
       DBG("%s: Twoway received from %I\n", p->name, faddr);
       ospf_neigh_sm(n, INM_2WAYREC);
-      twoway=1;
+      twoway = 1;
       break;
     }
   }
 
-  if(!twoway) ospf_neigh_sm(n, INM_1WAYREC);
+  if (!twoway)
+    ospf_neigh_sm(n, INM_1WAYREC);
 
   olddr = n->dr;
   n->dr = ipa_ntoh(ps->dr);
@@ -124,39 +127,43 @@ ospf_hello_receive(struct ospf_hello_packet *ps, struct proto *p,
   n->priority = ps->priority;
 
   /* Check priority change */
-  if(n->state>=NEIGHBOR_2WAY)
+  if (n->state >= NEIGHBOR_2WAY)
   {
-    if(n->priority!=oldpriority) ospf_int_sm(ifa, ISM_NEICH);
+    if (n->priority != oldpriority)
+      ospf_int_sm(ifa, ISM_NEICH);
 
     /* Router is declaring itself ad DR and there is no BDR */
-    if((ipa_compare(n->ip,n->dr)==0) && (ipa_to_u32(n->bdr)==0)
-      && (n->state!=NEIGHBOR_FULL))
+    if ((ipa_compare(n->ip, n->dr) == 0) && (ipa_to_u32(n->bdr) == 0)
+	&& (n->state != NEIGHBOR_FULL))
       ospf_int_sm(ifa, ISM_BACKS);
 
     /* Neighbor is declaring itself as BDR */
-    if((ipa_compare(n->ip,n->bdr)==0) && (n->state!=NEIGHBOR_FULL))
+    if ((ipa_compare(n->ip, n->bdr) == 0) && (n->state != NEIGHBOR_FULL))
       ospf_int_sm(ifa, ISM_BACKS);
 
     /* Neighbor is newly declaring itself as DR or BDR */
-    if(((ipa_compare(n->ip,n->dr)==0) && (ipa_compare(n->dr,olddr)!=0))
-      || ((ipa_compare(n->ip,n->bdr)==0) && (ipa_compare(n->bdr,oldbdr)!=0)))
+    if (((ipa_compare(n->ip, n->dr) == 0) && (ipa_compare(n->dr, olddr) != 0))
+	|| ((ipa_compare(n->ip, n->bdr) == 0)
+	    && (ipa_compare(n->bdr, oldbdr) != 0)))
       ospf_int_sm(ifa, ISM_NEICH);
 
     /* Neighbor is no more declaring itself as DR or BDR */
-    if(((ipa_compare(n->ip,olddr)==0) && (ipa_compare(n->dr,olddr)!=0))
-      || ((ipa_compare(n->ip,oldbdr)==0) && (ipa_compare(n->bdr,oldbdr)!=0)))
+    if (((ipa_compare(n->ip, olddr) == 0) && (ipa_compare(n->dr, olddr) != 0))
+	|| ((ipa_compare(n->ip, oldbdr) == 0)
+	    && (ipa_compare(n->bdr, oldbdr) != 0)))
       ospf_int_sm(ifa, ISM_NEICH);
   }
 
-  if(ifa->type!=OSPF_IT_NBMA)
+  if (ifa->type != OSPF_IT_NBMA)
   {
-    if((ifa->priority==0)&&(n->priority>0)) ospf_hello_send(NULL, 0, n);
+    if ((ifa->priority == 0) && (n->priority > 0))
+      ospf_hello_send(NULL, 0, n);
   }
   ospf_neigh_sm(n, INM_HELLOREC);
 }
 
 void
-ospf_hello_send(timer *timer,int poll, struct ospf_neighbor *dirn)
+ospf_hello_send(timer * timer, int poll, struct ospf_neighbor *dirn)
 {
   struct ospf_iface *ifa;
   struct ospf_hello_packet *pkt;
@@ -167,104 +174,109 @@ ospf_hello_send(timer *timer,int poll, struct ospf_neighbor *dirn)
   u32 *pp;
   u8 i;
 
-  if(timer==NULL) ifa=dirn->ifa;
-  else ifa=(struct ospf_iface *)timer->data;
+  if (timer == NULL)
+    ifa = dirn->ifa;
+  else
+    ifa = (struct ospf_iface *) timer->data;
 
-  if(ifa->stub) return;		/* Don't send any packet on stub iface */
+  if (ifa->stub)
+    return;			/* Don't send any packet on stub iface */
 
-  p=(struct proto *)(ifa->proto);
+  p = (struct proto *) (ifa->proto);
   DBG("%s: Hello/Poll timer fired on interface %s.\n",
-    p->name, ifa->iface->name);
+      p->name, ifa->iface->name);
   /* Now we should send a hello packet */
   /* First a common packet header */
-  if(ifa->type!=OSPF_IT_NBMA)
+  if (ifa->type != OSPF_IT_NBMA)
   {
-    pkt=(struct ospf_hello_packet *)(ifa->hello_sk->tbuf);
+    pkt = (struct ospf_hello_packet *) (ifa->hello_sk->tbuf);
   }
-  else 
+  else
   {
-    pkt=(struct ospf_hello_packet *)(ifa->ip_sk->tbuf);
+    pkt = (struct ospf_hello_packet *) (ifa->ip_sk->tbuf);
   }
 
   /* Now fill ospf_hello header */
-  op=(struct ospf_packet *)pkt;
+  op = (struct ospf_packet *) pkt;
 
   fill_ospf_pkt_hdr(ifa, pkt, HELLO_P);
 
-  pkt->netmask=ipa_mkmask(ifa->iface->addr->pxlen);
+  pkt->netmask = ipa_mkmask(ifa->iface->addr->pxlen);
   ipa_hton(pkt->netmask);
-  pkt->helloint=ntohs(ifa->helloint);
-  pkt->options=ifa->options;
-  pkt->priority=ifa->priority;
-  pkt->deadint=htonl(ifa->deadc*ifa->helloint);
-  pkt->dr=ifa->drip;
+  pkt->helloint = ntohs(ifa->helloint);
+  pkt->options = ifa->options;
+  pkt->priority = ifa->priority;
+  pkt->deadint = htonl(ifa->deadc * ifa->helloint);
+  pkt->dr = ifa->drip;
   ipa_hton(pkt->dr);
-  pkt->bdr=ifa->bdrip;
+  pkt->bdr = ifa->bdrip;
   ipa_hton(pkt->bdr);
 
   /* Fill all neighbors */
-  i=0;
-  pp=(u32 *)(((u8 *)pkt)+sizeof(struct ospf_hello_packet));
-  WALK_LIST (neigh, ifa->neigh_list)
+  i = 0;
+  pp = (u32 *) (((u8 *) pkt) + sizeof(struct ospf_hello_packet));
+  WALK_LIST(neigh, ifa->neigh_list)
   {
-    *(pp+i)=htonl(neigh->rid);
+    *(pp + i) = htonl(neigh->rid);
     i++;
   }
 
-  length=sizeof(struct ospf_hello_packet)+i*sizeof(u32);
-  op->length=htons(length);
+  length = sizeof(struct ospf_hello_packet) + i * sizeof(u32);
+  op->length = htons(length);
 
   ospf_pkt_finalize(ifa, op);
 
-    /* And finally send it :-) */
-  if(ifa->type!=OSPF_IT_NBMA)
+  /* And finally send it :-) */
+  if (ifa->type != OSPF_IT_NBMA)
   {
-    sk_send(ifa->hello_sk,length);
+    sk_send(ifa->hello_sk, length);
   }
-  else	/* NBMA */
+  else				/* NBMA */
   {
     struct ospf_neighbor *n1;
     struct nbma_node *nb;
     int send;
 
-    if(timer==NULL)	/* Response to received hello */
+    if (timer == NULL)		/* Response to received hello */
     {
       sk_send_to(ifa->ip_sk, length, dirn->ip, OSPF_PROTO);
     }
     else
     {
-      int toall=0;
-      int meeli=0;
-      if(ifa->state>OSPF_IS_DROTHER) toall=1;
-      if(ifa->priority>0) meeli=1;
-
-      WALK_LIST(nb,ifa->nbma_list)
+      int toall = 0;
+      int meeli = 0;
+      if (ifa->state > OSPF_IS_DROTHER)
+	toall = 1;
+      if (ifa->priority > 0)
+	meeli = 1;
+
+      WALK_LIST(nb, ifa->nbma_list)
       {
-        send=1;
-        WALK_LIST(n1, ifa->neigh_list)
-        {
-          if(ipa_compare(nb->ip,n1->ip)==0)
+	send = 1;
+	WALK_LIST(n1, ifa->neigh_list)
+	{
+	  if (ipa_compare(nb->ip, n1->ip) == 0)
 	  {
-	    send=0;
+	    send = 0;
 	    break;
-          }
-        }
-        if((poll==1)&&(send))
+	  }
+	}
+	if ((poll == 1) && (send))
 	{
-          if(toall||(meeli&&nb->eligible))
-            sk_send_to(ifa->ip_sk, length, nb->ip, OSPF_PROTO);
+	  if (toall || (meeli && nb->eligible))
+	    sk_send_to(ifa->ip_sk, length, nb->ip, OSPF_PROTO);
 	}
       }
-      if(poll==0)
+      if (poll == 0)
       {
-        WALK_LIST(n1,ifa->neigh_list)
-        {
-          if(toall||(n1->rid==ifa->drid)||(n1->rid==ifa->bdrid)||
-            (meeli&&(n1->priority>0)))
-            sk_send_to(ifa->ip_sk, length, n1->ip, OSPF_PROTO);
-        }
+	WALK_LIST(n1, ifa->neigh_list)
+	{
+	  if (toall || (n1->rid == ifa->drid) || (n1->rid == ifa->bdrid) ||
+	      (meeli && (n1->priority > 0)))
+	    sk_send_to(ifa->ip_sk, length, n1->ip, OSPF_PROTO);
+	}
       }
     }
   }
-  OSPF_TRACE(D_PACKETS, "Hello sent via %s",ifa->iface->name);
+  OSPF_TRACE(D_PACKETS, "Hello sent via %s", ifa->iface->name);
 }