aidl_impl/Weaver.cpp

/******************************************************************************
 *
 *  Copyright 2023 NXP
 *
 *  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 "Weaver.h"
#include <log/log.h>

namespace aidl {
namespace android {
namespace hardware {
namespace weaver {

using ::ndk::ScopedAStatus;
using std::vector;

// Methods from ::android::hardware::weaver::IWeaver follow.

Weaver::Weaver() {
  ALOGD("Weaver Constructor");
  pInterface = WeaverImpl::getInstance();
  if (pInterface != NULL) {
    pInterface->Init();
  } else {
    ALOGE("Failed to get Weaver Interface");
  }
}

ScopedAStatus Weaver::getConfig(WeaverConfig *out_config) {
  ALOGD("Weaver::getConfig");

  if (out_config == NULL) {
    ALOGE("Invalid param");
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(
        STATUS_FAILED, "Null pointer passed");
  }
  memset(out_config, 0, sizeof(WeaverConfig));

  if (pInterface == NULL) {
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(
        STATUS_FAILED, "Weaver interface not defined");
  }
  SlotInfo slotInfo;
  Status_Weaver status = pInterface->GetSlots(slotInfo);
  if (status == WEAVER_STATUS_OK) {
    out_config->slots = slotInfo.slots;
    out_config->keySize = slotInfo.keySize;
    out_config->valueSize = slotInfo.valueSize;
    ALOGD("Weaver Success for getSlots Slots :(%d)", out_config->slots);
    return ScopedAStatus::ok();
  } else {
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(
        STATUS_FAILED, "Failed to retrieve slots info");
  }
}

ScopedAStatus Weaver::read(int32_t in_slotId, const vector<uint8_t> &in_key,
                           WeaverReadResponse *out_response) {

  ALOGD("Weaver::read slot %d", in_slotId);
  if (out_response == NULL) {
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(
        STATUS_FAILED, "Null pointer passed");
  }
  if (in_key.empty()) {
    out_response->status = WeaverReadStatus::FAILED;
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(
        STATUS_FAILED, "Empty key input passed");
  }
  if (pInterface == NULL) {
    out_response->status = WeaverReadStatus::FAILED;
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(
        STATUS_FAILED, "Weaver interface not defined");
  }
  memset(out_response, 0, sizeof(WeaverReadResponse));

  ReadRespInfo readInfo;
  ScopedAStatus retStatus;
  Status_Weaver status;

  status = pInterface->Read(in_slotId, in_key, readInfo);
  switch (status) {
  case WEAVER_STATUS_OK:
    ALOGD("Read slot %d OK", in_slotId);
    out_response->value = readInfo.value;
    out_response->status = WeaverReadStatus::OK;
    retStatus = ScopedAStatus::ok();
    break;
  case WEAVER_STATUS_INCORRECT_KEY:
    ALOGE("Read Incorrect Key");
    out_response->value.resize(0);
    out_response->timeout = readInfo.timeout;
    out_response->status = WeaverReadStatus::INCORRECT_KEY;
    retStatus = ScopedAStatus::ok();
    break;
  case WEAVER_STATUS_THROTTLE:
    ALOGE("Read WEAVER_THROTTLE");
    out_response->value.resize(0);
    out_response->timeout = readInfo.timeout;
    out_response->status = WeaverReadStatus::THROTTLE;
    retStatus = ScopedAStatus::ok();
    break;
  default:
    out_response->timeout = 0;
    out_response->value.resize(0);
    out_response->status = WeaverReadStatus::FAILED;
    retStatus = ScopedAStatus::ok();
    break;
  }
  return retStatus;
}

ScopedAStatus Weaver::write(int32_t in_slotId, const vector<uint8_t> &in_key,
                            const vector<uint8_t> &in_value) {
  ALOGD("Weaver::write slot %d", in_slotId);
  if (in_key.empty() || in_value.empty()) {
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(
        STATUS_FAILED, "Invalid parameters passed");
  }
  if (pInterface == NULL) {
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(
        STATUS_FAILED, "Weaver interface not defined");
  }
  if (pInterface->Write(in_slotId, in_key, in_value) == WEAVER_STATUS_OK) {
    ALOGD("Write slot %d OK", in_slotId);
    return ScopedAStatus::ok();
  } else {
    return ScopedAStatus::fromServiceSpecificErrorWithMessage(STATUS_FAILED,
                                                              "Unknown error");
  }
}

} // namespace weaver
} // namespace hardware
} // namespace android
} // namespace aidl