Area networks added into configuration.

proto/ospf/config.Y

@@ -17,14 +17,15 @@ static struct ospf_area_config *this_area;
 static struct iface_patt *this_ipatt;
 #define OSPF_PATT ((struct ospf_iface_patt *) this_ipatt)
 static struct nbma_node *this_nbma;
+static struct area_net *this_pref;
 
 CF_DECLS
 
 CF_KEYWORDS(OSPF, AREA, OSPF_METRIC1, OSPF_METRIC2, OSPF_TAG)
 CF_KEYWORDS(NEIGHBORS, RFC1583COMPAT, STUB, TICK, COST, RETRANSMIT)
 CF_KEYWORDS(HELLO, TRANSMIT, PRIORITY, DEAD, NONBROADCAST, POINTOPOINT, TYPE)
-CF_KEYWORDS(NEIGHBORS, NONE, SIMPLE, AUTHENTICATION, PASSWORD, STRICT)
-CF_KEYWORDS(ELIGIBLE, POLL)
+CF_KEYWORDS(NONE, SIMPLE, AUTHENTICATION, PASSWORD, STRICT)
+CF_KEYWORDS(ELIGIBLE, POLL, NETWORKS, HIDDEN)
 
 %type <t> opttext
 
@@ -58,6 +59,7 @@ ospf_area_start: AREA idval '{' {
   this_area->tick = DISPTICK;
   this_area->stub = 0;
   init_list(&this_area->patt_list);
+  init_list(&this_area->net_list);
  }
  ;
 
@@ -72,6 +74,7 @@ ospf_area_opts:
 ospf_area_item:
    STUB COST expr { this_area->stub = $3 ; if($3<=0) cf_error("Stub cost must be greater than zero"); }
  | TICK expr { this_area->tick = $2 ; if($2<=0) cf_error("Tick must be greater than zero"); }
+ | NETWORKS '{' pref_list '}'
  | INTERFACE ospf_iface_list
  ;
 
@@ -96,6 +99,34 @@ ospf_iface_item:
  |
  ;
 
+pref_list:
+ /* empty */
+ | pref_list pref_item
+ ;
+
+pref_item:
+   pref_el;
+ | pref_hid;
+
+pref_el: prefix ';'
+ {
+   this_pref = cfg_allocz(sizeof(struct area_net));
+   add_tail(&this_area->net_list, NODE this_pref);
+   this_pref->net = $1.addr;
+   this_pref->mlen = $1.len;
+ }
+;
+
+pref_hid: prefix HIDDEN ';'
+ {
+   this_pref = cfg_allocz(sizeof(struct area_net));
+   add_tail(&this_area->net_list, NODE this_pref);
+   this_pref->net = $1.addr;
+   this_pref->mlen = $1.len;
+   this_pref->hidden = 1;
+ }
+;
+
 ipa_list:
  /* empty */
  | ipa_list ipa_item

proto/ospf/ospf.c

@@ -77,6 +77,7 @@ ospf_start(struct proto *p)
   struct ospf_config *c=(struct ospf_config *)(p->cf);
   struct ospf_area_config *ac;
   struct ospf_area *oa;
+  struct area_net *anet,*antmp;
 
   fib_init(&po->efib,p->pool,sizeof(struct extfib),16,init_efib);
   init_list(&(po->iface_list));
@@ -91,7 +92,7 @@ ospf_start(struct proto *p)
   WALK_LIST(ac,c->area_list)
   {
     oa=mb_allocz(po->proto.pool, sizeof(struct ospf_area));
-    add_tail(&po->area_list,NODE oa);
+    add_tail(&po->area_list, NODE oa);
     po->areano++;
     oa->stub=ac->stub;
     oa->tick=ac->tick;
@@ -108,6 +109,15 @@ ospf_start(struct proto *p)
     tm_start(oa->disp_timer,oa->tick);
     oa->calcrt=0;
     oa->origrt=0;
+    init_list(&oa->net_list);
+    WALK_LIST(anet,ac->net_list)
+    {
+      antmp=mb_allocz(po->proto.pool, sizeof(struct area_net));
+      antmp->net=anet->net;
+      antmp->mlen=anet->mlen;
+      antmp->hidden=anet->hidden;
+      add_tail(&oa->net_list, NODE antmp);
+    }
     fib_init(&oa->infib,po->proto.pool,sizeof(struct infib),16,init_infib);
   }
   return PS_UP;
@@ -485,7 +495,8 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
   struct ospf_iface_patt *ip1,*ip2;
   struct ospf_iface *ifa;
   struct nbma_node *nb1,*nb2,*nbnx;
-  struct ospf_area *oa;
+  struct ospf_area *oa=NULL;
+  struct area_net *anet,*antmp;
   int found;
 
   po->rfc1583=new->rfc1583;
@@ -502,23 +513,41 @@ 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;
+    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;
+
+    if(!oa) return 0;
+
     if(ac1->tick!=ac2->tick)
     {
-      WALK_LIST(oa,po->area_list)
+      if(oa->areaid==ac2->areaid)
       {
-        if(oa->areaid==ac2->areaid)
-	{
-	  oa->tick=ac2->tick;
-	  tm_start(oa->disp_timer,oa->tick);
-	  OSPF_TRACE(D_EVENTS,
-	    "Changing tick interval on area %I from %d to %d",
-	    oa->areaid, ac1->tick, ac2->tick);
-	  break;
-	}
+        oa->tick=ac2->tick;
+        tm_start(oa->disp_timer,oa->tick);
+        OSPF_TRACE(D_EVENTS,
+         "Changing tick interval on area %I from %d to %d",
+         oa->areaid, ac1->tick, ac2->tick);
+        break;
       }
     }
 
+    /* Change net_list */
+    WALK_LIST_DELSAFE(anet, antmp, oa->net_list)
+    {
+       rem_node(NODE anet);
+       mb_free(anet);
+    }
+    WALK_LIST(anet, ac2->net_list)
+    {
+       antmp=mb_alloc(p->pool, sizeof(struct area_net));
+       antmp->net=anet->net;
+       antmp->mlen=anet->mlen;
+       antmp->hidden=anet->hidden;
+       add_tail(&oa->net_list, NODE antmp);
+    }
+
     if(!iface_patts_equal(&ac1->patt_list, &ac2->patt_list,
       (void *) ospf_patt_compare))
         return 0;
@@ -801,6 +830,16 @@ ospf_sh(struct proto *p)
     cli_msg(-1014,"\t\tNumber of LSAs in DB:\t%u", oa->gr->hash_entries);
     cli_msg(-1014,"\t\tNumber of neighbors:\t%u", nno);
     cli_msg(-1014,"\t\tNumber of adjacent neighbors:\t%u", adjno);
+    if(!EMPTY_LIST(oa->net_list))
+    {
+      struct area_net *anet;
+      cli_msg(-1014,"\t\tArea networks:");
+      WALK_LIST(anet, oa->net_list)
+      {
+        cli_msg(-1014,"\t\t\t%18I/%u\t%s", anet->net, anet->mlen,
+          anet->hidden ? "Hidden" : "Advertise");
+      }
+    }
   }
   cli_msg(0,"");
 }

proto/ospf/ospf.h

@@ -65,12 +65,20 @@ struct nbma_node {
   int eligible;
 };
 
+struct area_net {
+  node n;
+  ip_addr net;
+  int mlen;
+  int hidden;
+};
+
 struct ospf_area_config {
   node n;
   u32 areaid;
   int stub;
   unsigned tick;
   list patt_list;
+  list net_list;
 };
 
 struct ospf_iface {
@@ -379,6 +387,7 @@ struct ospf_area {
   slist lsal;			/* List of all LSA's */
   struct top_hash_entry *rt;	/* My own router LSA */
   list cand;			/* List of candidates for RT calc. */
+  list net_list;		/* Networks to advertise or not */
   int stub;
   int trcap;			/* Transit capability? */
   struct proto_ospf *po;