First attempt at protocol configuration (now done only for RIP).

nest/config.Y

@@ -8,18 +8,22 @@
 
 CF_HDR
 
+static struct proto *this_proto;
+
 CF_DECLS
 
-CF_KEYWORDS(ROUTER, ID)
+CF_KEYWORDS(ROUTER, ID, PROTOCOL, PREFERENCE)
 
 %type <i> idval
 
 CF_GRAMMAR
 
+/* Setting of router ID */
+
 CF_ADDTO(conf, rtrid)
 rtrid: ROUTER ID idval {
    router_id = $3;
- }
+   }
  ;
 
 idval:
@@ -27,6 +31,35 @@ idval:
  | IPA { $$ = ipa_to_u32($1); }
  ;
 
+/* Definition of protocols */
+
+CF_ADDTO(conf, proto)
+
+proto_start: PROTOCOL
+
+proto_name:
+   /* EMPTY */ {
+     struct symbol *s = cf_default_name(this_proto->proto->name);
+     s->class = SYM_PROTO;
+     s->def = this_proto;
+     this_proto->name = s->name;
+     }
+ | SYM {
+     if ($1->class) cf_error("Symbol already defined");
+     $1->class = SYM_PROTO;
+     $1->def = this_proto;
+     this_proto->name = $1->name;
+   }
+ ;
+
+proto_item:
+   /* EMPTY */
+ | PREFERENCE NUM {
+     if ($2 < 0 || $2 > 255) cf_error("Invalid preference");
+     this_proto->preference = $2;
+   }
+ ;
+
 CF_CODE
 
 CF_END