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/*
* Copyright (C) 2017 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.
*/
#define LOG_TAG "VintfObject"
//#define LOG_NDEBUG 0
#include <android-base/logging.h>
#include <vector>
#include <string>
#include <nativehelper/JNIHelp.h>
#include <vintf/VintfObject.h>
#include <vintf/parse_string.h>
#include <vintf/parse_xml.h>
#include "core_jni_helpers.h"
static jclass gString;
static jclass gHashMapClazz;
static jmethodID gHashMapInit;
static jmethodID gHashMapPut;
namespace android {
using vintf::HalManifest;
using vintf::SchemaType;
using vintf::VintfObject;
using vintf::XmlConverter;
using vintf::Vndk;
using vintf::gHalManifestConverter;
using vintf::gCompatibilityMatrixConverter;
using vintf::to_string;
template<typename V>
static inline jobjectArray toJavaStringArray(JNIEnv* env, const V& v) {
size_t i;
typename V::const_iterator it;
jobjectArray ret = env->NewObjectArray(v.size(), gString, NULL /* init element */);
for (i = 0, it = v.begin(); it != v.end(); ++i, ++it) {
env->SetObjectArrayElement(ret, i, env->NewStringUTF(it->c_str()));
}
return ret;
}
template<typename T>
static void tryAddSchema(const T* object, const XmlConverter<T>& converter,
const std::string& description,
std::vector<std::string>* cStrings) {
if (object == nullptr) {
LOG(WARNING) << __FUNCTION__ << "Cannot get " << description;
} else {
cStrings->push_back(converter(*object));
}
}
static void tryAddHalNamesAndVersions(const HalManifest *manifest,
const std::string& description,
std::set<std::string> *output) {
if (manifest == nullptr) {
LOG(WARNING) << __FUNCTION__ << "Cannot get " << description;
} else {
auto names = manifest->getHalNamesAndVersions();
output->insert(names.begin(), names.end());
}
}
static jobjectArray android_os_VintfObject_report(JNIEnv* env, jclass)
{
std::vector<std::string> cStrings;
tryAddSchema(VintfObject::GetDeviceHalManifest(), gHalManifestConverter,
"device manifest", &cStrings);
tryAddSchema(VintfObject::GetFrameworkHalManifest(), gHalManifestConverter,
"framework manifest", &cStrings);
tryAddSchema(VintfObject::GetDeviceCompatibilityMatrix(), gCompatibilityMatrixConverter,
"device compatibility matrix", &cStrings);
tryAddSchema(VintfObject::GetFrameworkCompatibilityMatrix(), gCompatibilityMatrixConverter,
"framework compatibility matrix", &cStrings);
return toJavaStringArray(env, cStrings);
}
static jint android_os_VintfObject_verify(JNIEnv* env, jclass, jobjectArray packageInfo) {
size_t count = env->GetArrayLength(packageInfo);
std::vector<std::string> cPackageInfo{count};
for (size_t i = 0; i < count; ++i) {
jstring element = (jstring)env->GetObjectArrayElement(packageInfo, i);
const char *cString = env->GetStringUTFChars(element, NULL /* isCopy */);
cPackageInfo[i] = cString;
env->ReleaseStringUTFChars(element, cString);
}
std::string error;
int32_t status = VintfObject::CheckCompatibility(cPackageInfo, &error);
if (status)
LOG(WARNING) << "VintfObject.verify() returns " << status << ": " << error;
return status;
}
static jobjectArray android_os_VintfObject_getHalNamesAndVersions(JNIEnv* env, jclass) {
std::set<std::string> halNames;
tryAddHalNamesAndVersions(VintfObject::GetDeviceHalManifest(),
"device manifest", &halNames);
tryAddHalNamesAndVersions(VintfObject::GetFrameworkHalManifest(),
"framework manifest", &halNames);
return toJavaStringArray(env, halNames);
}
static jstring android_os_VintfObject_getSepolicyVersion(JNIEnv* env, jclass) {
const HalManifest *manifest = VintfObject::GetDeviceHalManifest();
if (manifest == nullptr || manifest->type() != SchemaType::DEVICE) {
LOG(WARNING) << __FUNCTION__ << "Cannot get device manifest";
return nullptr;
}
std::string cString = to_string(manifest->sepolicyVersion());
return env->NewStringUTF(cString.c_str());
}
static jobject android_os_VintfObject_getVndkSnapshots(JNIEnv* env, jclass) {
const HalManifest *manifest = VintfObject::GetFrameworkHalManifest();
if (manifest == nullptr || manifest->type() != SchemaType::FRAMEWORK) {
LOG(WARNING) << __FUNCTION__ << "Cannot get framework manifest";
return nullptr;
}
jobject jMap = env->NewObject(gHashMapClazz, gHashMapInit);
for (const Vndk &vndk : manifest->vndks()) {
std::string key = to_string(vndk.versionRange());
env->CallObjectMethod(jMap, gHashMapPut,
env->NewStringUTF(key.c_str()), toJavaStringArray(env, vndk.libraries()));
}
return jMap;
}
// ----------------------------------------------------------------------------
static const JNINativeMethod gVintfObjectMethods[] = {
{"report", "()[Ljava/lang/String;", (void*)android_os_VintfObject_report},
{"verify", "([Ljava/lang/String;)I", (void*)android_os_VintfObject_verify},
{"getHalNamesAndVersions", "()[Ljava/lang/String;", (void*)android_os_VintfObject_getHalNamesAndVersions},
{"getSepolicyVersion", "()Ljava/lang/String;", (void*)android_os_VintfObject_getSepolicyVersion},
{"getVndkSnapshots", "()Ljava/util/Map;", (void*)android_os_VintfObject_getVndkSnapshots},
};
const char* const kVintfObjectPathName = "android/os/VintfObject";
int register_android_os_VintfObject(JNIEnv* env)
{
gString = MakeGlobalRefOrDie(env, FindClassOrDie(env, "java/lang/String"));
gHashMapClazz = MakeGlobalRefOrDie(env, FindClassOrDie(env, "java/util/HashMap"));
gHashMapInit = GetMethodIDOrDie(env, gHashMapClazz, "<init>", "()V");
gHashMapPut = GetMethodIDOrDie(env, gHashMapClazz,
"put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
return RegisterMethodsOrDie(env, kVintfObjectPathName, gVintfObjectMethods,
NELEM(gVintfObjectMethods));
}
};
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