Exemple #1
0
func UpdatePathAggregator4ByteAs(msg *bgp.BGPUpdate) error {
	var aggAttr *bgp.PathAttributeAggregator
	var agg4Attr *bgp.PathAttributeAs4Aggregator
	agg4AttrPos := 0
	for i, attr := range msg.PathAttributes {
		switch attr.(type) {
		case *bgp.PathAttributeAggregator:
			attr := attr.(*bgp.PathAttributeAggregator)
			if attr.Value.Askind == reflect.Uint16 {
				aggAttr = attr
				aggAttr.Value.Askind = reflect.Uint32
			}
		case *bgp.PathAttributeAs4Aggregator:
			agg4Attr = attr.(*bgp.PathAttributeAs4Aggregator)
			agg4AttrPos = i
		}
	}
	if aggAttr == nil && agg4Attr == nil {
		return nil
	}

	if aggAttr == nil && agg4Attr != nil {
		return bgp.NewMessageError(bgp.BGP_ERROR_UPDATE_MESSAGE_ERROR, bgp.BGP_ERROR_SUB_MALFORMED_ATTRIBUTE_LIST, nil, "AS4 AGGREGATOR attribute exists, but AGGREGATOR doesn't")
	}

	if agg4Attr != nil {
		msg.PathAttributes = append(msg.PathAttributes[:agg4AttrPos], msg.PathAttributes[agg4AttrPos+1:]...)
		aggAttr.Value.AS = agg4Attr.Value.AS
	}
	return nil
}
Exemple #2
0
func (fsm *FSM) sendNotification(code, subType uint8, data []byte, msg string) error {
	e := bgp.NewMessageError(code, subType, data, msg)
	return fsm.sendNotificationFromErrorMsg(e.(*bgp.MessageError))
}