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http_interop.go
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http_interop.go
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// Copyright © 2021 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 identityserver
import (
"context"
"go.thethings.network/lorawan-stack/v3/pkg/errors"
"go.thethings.network/lorawan-stack/v3/pkg/identityserver/store"
"go.thethings.network/lorawan-stack/v3/pkg/interop"
"go.thethings.network/lorawan-stack/v3/pkg/log"
"go.thethings.network/lorawan-stack/v3/pkg/ttnpb"
"go.thethings.network/lorawan-stack/v3/pkg/types"
)
type interopServer struct {
*IdentityServer
interop.Authorizer
}
func (srv *interopServer) HomeNSRequest(ctx context.Context, in *interop.HomeNSReq) (*interop.TTIHomeNSAns, error) {
ctx = log.NewContextWithField(ctx, "namespace", "identityserver/interop")
if err := srv.RequireAuthorized(ctx); err != nil {
return nil, err
}
ids := &ttnpb.EndDeviceIdentifiers{
JoinEui: (*types.EUI64)(&in.ReceiverID).Bytes(),
DevEui: (*types.EUI64)(&in.DevEUI).Bytes(),
}
var dev *ttnpb.EndDevice
err := srv.store.Transact(ctx, func(ctx context.Context, st store.Store) (err error) {
dev, err = st.GetEndDevice(ctx, ids, []string{"network_server_address"})
return err
})
if err != nil {
if errors.IsNotFound(err) {
return nil, interop.ErrUnknownDevEUI.WithCause(err)
}
return nil, err
}
var (
conf = srv.configFromContext(ctx)
hNetID = conf.Network.NetID
hNSID = conf.Network.NSID
)
header, err := in.AnswerHeader()
if err != nil {
return nil, interop.ErrMalformedMessage.WithCause(err)
}
ans := &interop.TTIHomeNSAns{
HomeNSAns: interop.HomeNSAns{
JsNsMessageHeader: interop.JsNsMessageHeader{
MessageHeader: header,
SenderID: in.ReceiverID,
ReceiverID: in.SenderID,
ReceiverNSID: in.SenderNSID,
},
Result: interop.Result{
ResultCode: interop.ResultSuccess,
},
HNetID: interop.NetID(hNetID),
},
TTIVSExtension: interop.TTIVSExtension{
HNSAddress: dev.NetworkServerAddress,
HTenantID: conf.Network.TenantID,
},
}
if in.ProtocolVersion.RequiresNSID() {
ans.HNSID = (*interop.EUI64)(hNSID)
}
return ans, nil
}