func (d *of12Driver) handlePkt(pkt of.Header, c *ofConn) error {
pkt12, err := of12.ToHeader12(pkt)
if err != nil {
return err
}
switch {
case of12.IsEchoRequest(pkt12):
return d.handleEchoRequest(of12.NewEchoRequestWithBuf(pkt12.Buf), c)
case of12.IsFeaturesReply(pkt12):
return d.handleFeaturesReply(of12.NewFeaturesReplyWithBuf(pkt12.Buf), c)
case of12.IsPacketIn(pkt12):
return d.handlePacketIn(of12.NewPacketInWithBuf(pkt12.Buf), c)
case of12.IsErrorMsg(pkt12):
return d.handleErrorMsg(of12.NewErrorMsgWithBuf(pkt12.Buf), c)
case of12.IsStatsReply(pkt12):
return d.handleStatsReply(of12.NewStatsReplyWithBuf(pkt12.Buf), c)
case of12.IsRoleReply(pkt12):
return d.handleRoleReply(of12.NewRoleReplyWithBuf(pkt12.Buf), c)
case of12.IsPortStatus(pkt12):
return d.handlePortStatus(of12.NewPortStatusWithBuf(pkt12.Buf), c)
default:
return fmt.Errorf("received unsupported packet: %v", pkt.Type())
}
}
func doHandleEchoRequest(req of.Header, res of.Header, c *ofConn) error {
glog.V(2).Infof("Received echo request from %v", c.node)
res.SetXid(req.Xid())
err := c.WriteHeaders([]of.Header{res})
if err != nil {
return err
}
c.Flush()
glog.V(2).Infof("Sent echo reply to %v", c.node)
return nil
}