03bc75f298
At the layer right under HIDL impl, where the callback objs are received from HIDL and used by HAL layer, there is race condition volnerability which could yield using a incompletely copied sp obj. Added mutex protection. Change-Id: I611db590d1fadbe43c74db71a1ea906dbe067c6d CRs-Fixed: 2144976
263 lines
12 KiB
C++
263 lines
12 KiB
C++
/* Copyright (c) 2017, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation, nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#define LOG_NDEBUG 0
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#define LOG_TAG "LocSvc_MeasurementAPIClient"
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#include <log_util.h>
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#include <loc_cfg.h>
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#include "LocationUtil.h"
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#include "MeasurementAPIClient.h"
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namespace android {
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namespace hardware {
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namespace gnss {
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namespace V1_0 {
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namespace implementation {
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static void convertGnssData(GnssMeasurementsNotification& in,
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IGnssMeasurementCallback::GnssData& out);
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static void convertGnssMeasurement(GnssMeasurementsData& in,
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IGnssMeasurementCallback::GnssMeasurement& out);
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static void convertGnssClock(GnssMeasurementsClock& in, IGnssMeasurementCallback::GnssClock& out);
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MeasurementAPIClient::MeasurementAPIClient() :
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mGnssMeasurementCbIface(nullptr),
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mTracking(false)
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{
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LOC_LOGD("%s]: ()", __FUNCTION__);
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}
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MeasurementAPIClient::~MeasurementAPIClient()
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{
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LOC_LOGD("%s]: ()", __FUNCTION__);
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}
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// for GpsInterface
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Return<IGnssMeasurement::GnssMeasurementStatus>
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MeasurementAPIClient::measurementSetCallback(const sp<IGnssMeasurementCallback>& callback)
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{
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LOC_LOGD("%s]: (%p)", __FUNCTION__, &callback);
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mMutex.lock();
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mGnssMeasurementCbIface = callback;
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mMutex.unlock();
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LocationCallbacks locationCallbacks;
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memset(&locationCallbacks, 0, sizeof(LocationCallbacks));
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locationCallbacks.size = sizeof(LocationCallbacks);
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locationCallbacks.trackingCb = nullptr;
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locationCallbacks.batchingCb = nullptr;
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locationCallbacks.geofenceBreachCb = nullptr;
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locationCallbacks.geofenceStatusCb = nullptr;
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locationCallbacks.gnssLocationInfoCb = nullptr;
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locationCallbacks.gnssNiCb = nullptr;
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locationCallbacks.gnssSvCb = nullptr;
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locationCallbacks.gnssNmeaCb = nullptr;
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locationCallbacks.gnssMeasurementsCb = nullptr;
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if (mGnssMeasurementCbIface != nullptr) {
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locationCallbacks.gnssMeasurementsCb =
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[this](GnssMeasurementsNotification gnssMeasurementsNotification) {
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onGnssMeasurementsCb(gnssMeasurementsNotification);
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};
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}
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locAPISetCallbacks(locationCallbacks);
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LocationOptions options;
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memset(&options, 0, sizeof(LocationOptions));
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options.size = sizeof(LocationOptions);
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options.minInterval = 1000;
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options.mode = GNSS_SUPL_MODE_STANDALONE;
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mTracking = true;
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LOC_LOGD("%s]: start tracking session", __FUNCTION__);
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locAPIStartTracking(options);
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return IGnssMeasurement::GnssMeasurementStatus::SUCCESS;
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}
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// for GpsMeasurementInterface
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void MeasurementAPIClient::measurementClose() {
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LOC_LOGD("%s]: ()", __FUNCTION__);
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mTracking = false;
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locAPIStopTracking();
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}
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// callbacks
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void MeasurementAPIClient::onGnssMeasurementsCb(
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GnssMeasurementsNotification gnssMeasurementsNotification)
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{
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LOC_LOGD("%s]: (count: %zu active: %zu)",
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__FUNCTION__, gnssMeasurementsNotification.count, mTracking);
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if (mTracking) {
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mMutex.lock();
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auto gnssMeasurementCbIface(mGnssMeasurementCbIface);
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mMutex.unlock();
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if (gnssMeasurementCbIface != nullptr) {
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IGnssMeasurementCallback::GnssData gnssData;
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convertGnssData(gnssMeasurementsNotification, gnssData);
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auto r = gnssMeasurementCbIface->GnssMeasurementCb(gnssData);
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if (!r.isOk()) {
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LOC_LOGE("%s] Error from GnssMeasurementCb description=%s",
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__func__, r.description().c_str());
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}
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}
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}
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}
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static void convertGnssMeasurement(GnssMeasurementsData& in,
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IGnssMeasurementCallback::GnssMeasurement& out)
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{
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memset(&out, 0, sizeof(IGnssMeasurementCallback::GnssMeasurement));
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if (in.flags & GNSS_MEASUREMENTS_DATA_SIGNAL_TO_NOISE_RATIO_BIT)
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out.flags |= IGnssMeasurementCallback::GnssMeasurementFlags::HAS_SNR;
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if (in.flags & GNSS_MEASUREMENTS_DATA_CARRIER_FREQUENCY_BIT)
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out.flags |= IGnssMeasurementCallback::GnssMeasurementFlags::HAS_CARRIER_FREQUENCY;
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if (in.flags & GNSS_MEASUREMENTS_DATA_CARRIER_CYCLES_BIT)
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out.flags |= IGnssMeasurementCallback::GnssMeasurementFlags::HAS_CARRIER_CYCLES;
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if (in.flags & GNSS_MEASUREMENTS_DATA_CARRIER_PHASE_BIT)
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out.flags |= IGnssMeasurementCallback::GnssMeasurementFlags::HAS_CARRIER_PHASE;
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if (in.flags & GNSS_MEASUREMENTS_DATA_CARRIER_PHASE_UNCERTAINTY_BIT)
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out.flags |= IGnssMeasurementCallback::GnssMeasurementFlags::HAS_CARRIER_PHASE_UNCERTAINTY;
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if (in.flags & GNSS_MEASUREMENTS_DATA_AUTOMATIC_GAIN_CONTROL_BIT)
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out.flags |= IGnssMeasurementCallback::GnssMeasurementFlags::HAS_AUTOMATIC_GAIN_CONTROL;
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out.svid = in.svId;
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convertGnssConstellationType(in.svType, out.constellation);
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out.timeOffsetNs = in.timeOffsetNs;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_CODE_LOCK_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_CODE_LOCK;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_BIT_SYNC_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_BIT_SYNC;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_SUBFRAME_SYNC_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_SUBFRAME_SYNC;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_TOW_DECODED_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_TOW_DECODED;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_MSEC_AMBIGUOUS_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_MSEC_AMBIGUOUS;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_SYMBOL_SYNC_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_SYMBOL_SYNC;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_GLO_STRING_SYNC_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_GLO_STRING_SYNC;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_GLO_TOD_DECODED_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_GLO_TOD_DECODED;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_BDS_D2_BIT_SYNC_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_BDS_D2_BIT_SYNC;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_BDS_D2_SUBFRAME_SYNC_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_BDS_D2_SUBFRAME_SYNC;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_GAL_E1BC_CODE_LOCK_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_GAL_E1BC_CODE_LOCK;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_GAL_E1C_2ND_CODE_LOCK_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_GAL_E1C_2ND_CODE_LOCK;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_GAL_E1B_PAGE_SYNC_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_GAL_E1B_PAGE_SYNC;
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if (in.stateMask & GNSS_MEASUREMENTS_STATE_SBAS_SYNC_BIT)
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out.state |= IGnssMeasurementCallback::GnssMeasurementState::STATE_SBAS_SYNC;
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out.receivedSvTimeInNs = in.receivedSvTimeNs;
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out.receivedSvTimeUncertaintyInNs = in.receivedSvTimeUncertaintyNs;
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out.cN0DbHz = in.carrierToNoiseDbHz;
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out.pseudorangeRateMps = in.pseudorangeRateMps;
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out.pseudorangeRateUncertaintyMps = in.pseudorangeRateUncertaintyMps;
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if (in.adrStateMask & GNSS_MEASUREMENTS_ACCUMULATED_DELTA_RANGE_STATE_VALID_BIT)
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out.accumulatedDeltaRangeState |=
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IGnssMeasurementCallback::GnssAccumulatedDeltaRangeState::ADR_STATE_VALID;
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if (in.adrStateMask & GNSS_MEASUREMENTS_ACCUMULATED_DELTA_RANGE_STATE_RESET_BIT)
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out.accumulatedDeltaRangeState |=
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IGnssMeasurementCallback::GnssAccumulatedDeltaRangeState::ADR_STATE_RESET;
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if (in.adrStateMask & GNSS_MEASUREMENTS_ACCUMULATED_DELTA_RANGE_STATE_CYCLE_SLIP_BIT)
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out.accumulatedDeltaRangeState |=
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IGnssMeasurementCallback::GnssAccumulatedDeltaRangeState::ADR_STATE_CYCLE_SLIP;
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out.accumulatedDeltaRangeM = in.adrMeters;
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out.accumulatedDeltaRangeUncertaintyM = in.adrUncertaintyMeters;
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out.carrierFrequencyHz = in.carrierFrequencyHz;
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out.carrierCycles = in.carrierCycles;
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out.carrierPhase = in.carrierPhase;
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out.carrierPhaseUncertainty = in.carrierPhaseUncertainty;
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uint8_t indicator =
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static_cast<uint8_t>(IGnssMeasurementCallback::GnssMultipathIndicator::INDICATOR_UNKNOWN);
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if (in.multipathIndicator & GNSS_MEASUREMENTS_MULTIPATH_INDICATOR_PRESENT)
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indicator |= IGnssMeasurementCallback::GnssMultipathIndicator::INDICATOR_PRESENT;
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if (in.multipathIndicator & GNSS_MEASUREMENTS_MULTIPATH_INDICATOR_NOT_PRESENT)
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indicator |= IGnssMeasurementCallback::GnssMultipathIndicator::INDICATIOR_NOT_PRESENT;
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out.multipathIndicator =
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static_cast<IGnssMeasurementCallback::GnssMultipathIndicator>(indicator);
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out.snrDb = in.signalToNoiseRatioDb;
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out.agcLevelDb = in.agcLevelDb;
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}
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static void convertGnssClock(GnssMeasurementsClock& in, IGnssMeasurementCallback::GnssClock& out)
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{
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memset(&out, 0, sizeof(IGnssMeasurementCallback::GnssClock));
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if (in.flags & GNSS_MEASUREMENTS_CLOCK_FLAGS_LEAP_SECOND_BIT)
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out.gnssClockFlags |= IGnssMeasurementCallback::GnssClockFlags::HAS_LEAP_SECOND;
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if (in.flags & GNSS_MEASUREMENTS_CLOCK_FLAGS_TIME_UNCERTAINTY_BIT)
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out.gnssClockFlags |= IGnssMeasurementCallback::GnssClockFlags::HAS_TIME_UNCERTAINTY;
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if (in.flags & GNSS_MEASUREMENTS_CLOCK_FLAGS_FULL_BIAS_BIT)
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out.gnssClockFlags |= IGnssMeasurementCallback::GnssClockFlags::HAS_FULL_BIAS;
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if (in.flags & GNSS_MEASUREMENTS_CLOCK_FLAGS_BIAS_BIT)
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out.gnssClockFlags |= IGnssMeasurementCallback::GnssClockFlags::HAS_BIAS;
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if (in.flags & GNSS_MEASUREMENTS_CLOCK_FLAGS_BIAS_UNCERTAINTY_BIT)
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out.gnssClockFlags |= IGnssMeasurementCallback::GnssClockFlags::HAS_BIAS_UNCERTAINTY;
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if (in.flags & GNSS_MEASUREMENTS_CLOCK_FLAGS_DRIFT_BIT)
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out.gnssClockFlags |= IGnssMeasurementCallback::GnssClockFlags::HAS_DRIFT;
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if (in.flags & GNSS_MEASUREMENTS_CLOCK_FLAGS_DRIFT_UNCERTAINTY_BIT)
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out.gnssClockFlags |= IGnssMeasurementCallback::GnssClockFlags::HAS_DRIFT_UNCERTAINTY;
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out.leapSecond = in.leapSecond;
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out.timeNs = in.timeNs;
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out.timeUncertaintyNs = in.timeUncertaintyNs;
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out.fullBiasNs = in.fullBiasNs;
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out.biasNs = in.biasNs;
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out.biasUncertaintyNs = in.biasUncertaintyNs;
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out.driftNsps = in.driftNsps;
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out.driftUncertaintyNsps = in.driftUncertaintyNsps;
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out.hwClockDiscontinuityCount = in.hwClockDiscontinuityCount;
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}
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static void convertGnssData(GnssMeasurementsNotification& in,
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IGnssMeasurementCallback::GnssData& out)
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{
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out.measurementCount = in.count;
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if (out.measurementCount > static_cast<uint32_t>(GnssMax::SVS_COUNT)) {
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LOC_LOGW("%s]: Too many measurement %zd. Clamps to %d.",
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__FUNCTION__, out.measurementCount, GnssMax::SVS_COUNT);
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out.measurementCount = static_cast<uint32_t>(GnssMax::SVS_COUNT);
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}
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for (size_t i = 0; i < out.measurementCount; i++) {
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convertGnssMeasurement(in.measurements[i], out.measurements[i]);
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}
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convertGnssClock(in.clock, out.clock);
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}
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} // namespace implementation
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} // namespace V1_0
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} // namespace gnss
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} // namespace hardware
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} // namespace android
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