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upstream.go
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upstream.go
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// Copyright © 2019 The Things Network Foundation, The Things Industries B.V.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package upstream
import (
"context"
"go.thethings.network/lorawan-stack/v3/pkg/gatewayserver/io"
"go.thethings.network/lorawan-stack/v3/pkg/ttnpb"
"go.thethings.network/lorawan-stack/v3/pkg/types"
)
// Handler represents the upstream handler that connects to an upstream host.
type Handler interface {
// DevAddrPrefixes returns the DevAddr prefixes for this upstream handler.
DevAddrPrefixes() []types.DevAddrPrefix
// Setup performs all the preparation necessary to connect the handler to a particular upstream host.
Setup(context.Context) error
// ConnectGateway informs the upstream handler that a particular gateway is connected to the frontend.
ConnectGateway(context.Context, ttnpb.GatewayIdentifiers, *io.Connection) error
// HandleUp handles ttnpb.GatewayUplinkMessage. It must not mutate the gateway uplink message.
HandleUplink(context.Context, ttnpb.GatewayIdentifiers, *ttnpb.EndDeviceIdentifiers, *ttnpb.GatewayUplinkMessage) error
// HandleStatus handles ttnpb.GatewayStatus.
HandleStatus(context.Context, ttnpb.GatewayIdentifiers, *ttnpb.GatewayStatus) error
// HandleTxAck handles ttnpb.TxAcknowledgment.
HandleTxAck(context.Context, ttnpb.GatewayIdentifiers, *ttnpb.TxAcknowledgment) error
}