Add ICMPv6 Parameter Problem reason code.

portreasons.cc

@@ -164,6 +164,7 @@ reason_map_type::reason_map_type(){
     reason_map[ER_NOROUTE] = reason_string("no-route", "no-routes");
     reason_map[ER_BEYONDSCOPE] = reason_string("beyond-scope", "beyond-scopes");
     reason_map[ER_REJECTROUTE] = reason_string("reject-route", "reject-routes");
+    reason_map[ER_PARAMPROBLEM] = reason_string("param-problem", "param-problems");
 }
 
 /* Map holding plural and singular versions of error codes */
@@ -241,6 +242,9 @@ static reason_codes icmpv6_to_reason(int icmp_type, int icmp_code) {
             }
             return ER_UNKNOWN;
 
+        case ICMPV6_PARAMPROBLEM:
+	    return ER_PARAMPROBLEM;
+
         case ICMPV6_TIMEXCEED:
             return ER_TIMEEXCEEDED;
     }

portreasons.h

@@ -153,7 +153,7 @@ enum reason_codes {
 	ER_ARPRESPONSE, ER_TCPRESPONSE, ER_NORESPONSE,
 	ER_INITACK, ER_ABORT,
 	ER_LOCALHOST, ER_SCRIPT, ER_UNKNOWN, ER_USER,
-	ER_NOROUTE, ER_BEYONDSCOPE, ER_REJECTROUTE,
+	ER_NOROUTE, ER_BEYONDSCOPE, ER_REJECTROUTE, ER_PARAMPROBLEM,
 };
 
 /* A map of reason_codes to plural and singular *