45 lines
1,003 B
Go
45 lines
1,003 B
Go
package modbus
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import (
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"fmt"
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"net"
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"github.com/andig/mbserver"
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"github.com/evcc-io/evcc/api"
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"github.com/evcc-io/evcc/util"
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"github.com/evcc-io/evcc/util/modbus"
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"github.com/evcc-io/evcc/util/sponsor"
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)
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func StartProxy(port int, config modbus.Settings, readOnly bool) error {
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conn, err := modbus.NewConnection(config.URI, config.Device, config.Comset, config.Baudrate, modbus.ProtocolFromRTU(config.RTU), config.ID)
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if err != nil {
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return err
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}
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if !sponsor.IsAuthorized() {
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return api.ErrSponsorRequired
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}
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h := &handler{
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log: util.NewLogger(fmt.Sprintf("proxy-%d", port)),
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readOnly: readOnly,
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RequestHandler: new(mbserver.DummyHandler), // supplies HandleDiscreteInputs
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conn: conn,
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}
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l, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
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if err != nil {
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return err
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}
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h.log.DEBUG.Printf("modbus proxy for %s listening at :%d", config.String(), port)
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srv, err := mbserver.New(h)
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if err == nil {
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err = srv.Start(l)
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}
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return err
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}
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