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/*
* Copyright (C) 2016 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 "chre/platform/platform_nanoapp.h"
#include <dlfcn.h>
#include <cinttypes>
#include "chre/platform/assert.h"
#include "chre/platform/log.h"
#include "chre/platform/shared/nanoapp_dso_util.h"
#include "chre_api/chre/version.h"
namespace chre {
PlatformNanoapp::~PlatformNanoapp() {
closeNanoapp();
}
bool PlatformNanoapp::start() {
return openNanoapp() && mAppInfo->entryPoints.start();
}
void PlatformNanoapp::handleEvent(uint32_t senderInstanceId, uint16_t eventType,
const void *eventData) {
mAppInfo->entryPoints.handleEvent(senderInstanceId, eventType, eventData);
}
void PlatformNanoapp::end() {
mAppInfo->entryPoints.end();
closeNanoapp();
}
uint64_t PlatformNanoapp::getAppId() const {
return (mAppInfo == nullptr) ? 0 : mAppInfo->appId;
}
uint32_t PlatformNanoapp::getAppVersion() const {
return mAppInfo->appVersion;
}
uint32_t PlatformNanoapp::getTargetApiVersion() const {
return CHRE_API_VERSION;
}
const char *PlatformNanoapp::getAppName() const {
return (mAppInfo != nullptr) ? mAppInfo->name : "Unknown";
}
bool PlatformNanoapp::isSystemNanoapp() const {
return (mAppInfo != nullptr && mAppInfo->isSystemNanoapp);
}
void PlatformNanoapp::logStateToBuffer(DebugDumpWrapper &debugDump) const {}
void PlatformNanoappBase::loadFromFile(const std::string &filename) {
CHRE_ASSERT(!isLoaded());
mFilename = filename;
}
void PlatformNanoappBase::loadStatic(const struct chreNslNanoappInfo *appInfo) {
CHRE_ASSERT(!isLoaded());
mIsStatic = true;
mAppInfo = appInfo;
}
bool PlatformNanoappBase::isLoaded() const {
return (mIsStatic || mDsoHandle != nullptr);
}
bool PlatformNanoappBase::openNanoapp() {
bool success = false;
if (mIsStatic) {
success = true;
} else if (!mFilename.empty()) {
success = openNanoappFromFile();
} else {
CHRE_ASSERT(false);
}
return success;
}
bool PlatformNanoappBase::openNanoappFromFile() {
CHRE_ASSERT(!mFilename.empty());
CHRE_ASSERT_LOG(mDsoHandle == nullptr, "Re-opening nanoapp");
bool success = false;
mDsoHandle = dlopen(mFilename.c_str(), RTLD_NOW | RTLD_GLOBAL);
if (mDsoHandle == nullptr) {
LOGE("Failed to load nanoapp from file %s: %s", mFilename.c_str(),
dlerror());
} else {
mAppInfo = static_cast<const struct chreNslNanoappInfo *>(
dlsym(mDsoHandle, CHRE_NSL_DSO_NANOAPP_INFO_SYMBOL_NAME));
if (mAppInfo == nullptr) {
LOGE("Failed to find app info symbol in %s: %s", mFilename.c_str(),
dlerror());
} else {
// TODO(b/120778991): reenable this check after adding support for passing
// in the .napp_header to the simulator
// success = validateAppInfo(0 /* skip ID validation */, 0, mAppInfo);
success = true;
if (!success) {
mAppInfo = nullptr;
} else {
LOGI("Successfully loaded nanoapp %s (0x%016" PRIx64
") version 0x%" PRIx32 " uimg %d system %d from file %s",
mAppInfo->name, mAppInfo->appId, mAppInfo->appVersion,
mAppInfo->isTcmNanoapp, mAppInfo->isSystemNanoapp,
mFilename.c_str());
}
}
}
return success;
}
void PlatformNanoappBase::closeNanoapp() {
if (mDsoHandle != nullptr) {
mAppInfo = nullptr;
if (dlclose(mDsoHandle) != 0) {
LOGE("dlclose failed: %s", dlerror());
}
mDsoHandle = nullptr;
}
}
} // namespace chre
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