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57 lines
1.7 KiB
57 lines
1.7 KiB
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "chpp/services/loopback.h"
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include "chpp/app.h"
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#include "chpp/log.h"
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#include "chpp/memory.h"
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#include "chpp/transport.h"
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/************************************************
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* Public Functions
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***********************************************/
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bool chppDispatchLoopbackClientRequest(struct ChppAppState *context,
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uint8_t *buf, size_t len) {
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uint8_t *response = chppMalloc(len);
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if (response == NULL) {
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CHPP_LOG_OOM();
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chppEnqueueTxErrorDatagram(context->transportContext,
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CHPP_TRANSPORT_ERROR_OOM);
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} else {
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CHPP_LOGI("Looping back len=%" PRIuSIZE, len);
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// Copy received datagram
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memcpy(response, buf, len);
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// Modify response message type per loopback spec.
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struct ChppAppHeader *responseHeader = (struct ChppAppHeader *)response;
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responseHeader->type = CHPP_MESSAGE_TYPE_SERVICE_RESPONSE;
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// Send out response datagram
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chppEnqueueTxDatagramOrFail(context->transportContext, response, len);
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}
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return true;
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}
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