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/*
* Copyright (C) 2020 The Android Open Source Project
*
* 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.
*/
#include "chpp/services.h"
#include <inttypes.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "chpp/app.h"
#include "chpp/log.h"
#include "chpp/memory.h"
#ifdef CHPP_SERVICE_ENABLED_GNSS
#include "chpp/services/gnss.h"
#endif
#ifdef CHPP_SERVICE_ENABLED_WIFI
#include "chpp/services/wifi.h"
#endif
#ifdef CHPP_SERVICE_ENABLED_WWAN
#include "chpp/services/wwan.h"
#endif
#include "chpp/time.h"
#include "chpp/transport.h"
/************************************************
* Public Functions
***********************************************/
void chppRegisterCommonServices(struct ChppAppState *context) {
UNUSED_VAR(context);
#ifdef CHPP_SERVICE_ENABLED_WWAN
if (context->clientServiceSet.wwanService) {
chppRegisterWwanService(context);
}
#endif
#ifdef CHPP_SERVICE_ENABLED_WIFI
if (context->clientServiceSet.wifiService) {
chppRegisterWifiService(context);
}
#endif
#ifdef CHPP_SERVICE_ENABLED_GNSS
if (context->clientServiceSet.gnssService) {
chppRegisterGnssService(context);
}
#endif
}
void chppDeregisterCommonServices(struct ChppAppState *context) {
UNUSED_VAR(context);
#ifdef CHPP_SERVICE_ENABLED_WWAN
if (context->clientServiceSet.wwanService) {
chppDeregisterWwanService(context);
}
#endif
#ifdef CHPP_SERVICE_ENABLED_WIFI
if (context->clientServiceSet.wifiService) {
chppDeregisterWifiService(context);
}
#endif
#ifdef CHPP_SERVICE_ENABLED_GNSS
if (context->clientServiceSet.gnssService) {
chppDeregisterGnssService(context);
}
#endif
}
void chppRegisterService(struct ChppAppState *appContext, void *serviceContext,
struct ChppServiceState *serviceState,
const struct ChppService *newService) {
CHPP_DEBUG_NOT_NULL(appContext);
CHPP_DEBUG_NOT_NULL(serviceContext);
CHPP_DEBUG_NOT_NULL(serviceState);
CHPP_DEBUG_NOT_NULL(newService);
const uint8_t numServices = appContext->registeredServiceCount;
serviceState->openState = CHPP_OPEN_STATE_CLOSED;
serviceState->appContext = appContext;
if (numServices >= CHPP_MAX_REGISTERED_SERVICES) {
CHPP_LOGE("Max services registered: # %" PRIu8, numServices);
serviceState->handle = CHPP_HANDLE_NONE;
return;
}
serviceState->handle = CHPP_SERVICE_HANDLE_OF_INDEX(numServices);
appContext->registeredServices[numServices] = newService;
appContext->registeredServiceContexts[numServices] = serviceContext;
appContext->registeredServiceCount++;
char uuidText[CHPP_SERVICE_UUID_STRING_LEN];
chppUuidToStr(newService->descriptor.uuid, uuidText);
CHPP_LOGD("Registered service # %" PRIu8
" on handle %d"
" with name=%s, UUID=%s, version=%" PRIu8 ".%" PRIu8 ".%" PRIu16
", min_len=%" PRIuSIZE " ",
numServices, serviceState->handle, newService->descriptor.name,
uuidText, newService->descriptor.version.major,
newService->descriptor.version.minor,
newService->descriptor.version.patch, newService->minLength);
return;
}
struct ChppAppHeader *chppAllocServiceNotification(size_t len) {
CHPP_ASSERT(len >= sizeof(struct ChppAppHeader));
struct ChppAppHeader *result = chppMalloc(len);
if (result) {
result->handle = CHPP_HANDLE_NONE;
result->type = CHPP_MESSAGE_TYPE_SERVICE_NOTIFICATION;
result->transaction = 0;
result->error = CHPP_APP_ERROR_NONE;
result->command = CHPP_APP_COMMAND_NONE;
}
return result;
}
struct ChppAppHeader *chppAllocServiceResponse(
const struct ChppAppHeader *requestHeader, size_t len) {
CHPP_ASSERT(len >= sizeof(struct ChppAppHeader));
struct ChppAppHeader *result = chppMalloc(len);
if (result) {
*result = *requestHeader;
result->type = CHPP_MESSAGE_TYPE_SERVICE_RESPONSE;
result->error = CHPP_APP_ERROR_NONE;
}
return result;
}
void chppServiceTimestampRequest(struct ChppRequestResponseState *rRState,
struct ChppAppHeader *requestHeader) {
if (rRState->responseTimeNs == CHPP_TIME_NONE &&
rRState->requestTimeNs != CHPP_TIME_NONE) {
CHPP_LOGE("RX dupe req t=%" PRIu64,
rRState->requestTimeNs / CHPP_NSEC_PER_MSEC);
}
rRState->requestTimeNs = chppGetCurrentTimeNs();
rRState->responseTimeNs = CHPP_TIME_NONE;
rRState->transaction = requestHeader->transaction;
}
uint64_t chppServiceTimestampResponse(
struct ChppRequestResponseState *rRState) {
uint64_t previousResponseTime = rRState->responseTimeNs;
rRState->responseTimeNs = chppGetCurrentTimeNs();
return previousResponseTime;
}
bool chppSendTimestampedResponseOrFail(struct ChppServiceState *serviceState,
struct ChppRequestResponseState *rRState,
void *buf, size_t len) {
uint64_t previousResponseTime = chppServiceTimestampResponse(rRState);
if (rRState->requestTimeNs == CHPP_TIME_NONE) {
CHPP_LOGE("TX response w/ no req t=%" PRIu64,
rRState->responseTimeNs / CHPP_NSEC_PER_MSEC);
} else if (previousResponseTime != CHPP_TIME_NONE) {
CHPP_LOGW("TX additional response t=%" PRIu64 " for req t=%" PRIu64,
rRState->responseTimeNs / CHPP_NSEC_PER_MSEC,
rRState->requestTimeNs / CHPP_NSEC_PER_MSEC);
} else {
CHPP_LOGD("Sending initial response at t=%" PRIu64
" for request at t=%" PRIu64 " (RTT=%" PRIu64 ")",
rRState->responseTimeNs / CHPP_NSEC_PER_MSEC,
rRState->requestTimeNs / CHPP_NSEC_PER_MSEC,
(rRState->responseTimeNs - rRState->requestTimeNs) /
CHPP_NSEC_PER_MSEC);
}
return chppEnqueueTxDatagramOrFail(serviceState->appContext->transportContext,
buf, len);
}
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