abdc2b47b3
This is part of weaning apps off accessing system identifiers via system properties API. Apps should use android.os.Build API instead. Bug: 33700679 Test: Enable MTP mode then check that mtp-detect output same as before this commit Change-Id: I4e6696cdee18b9c3e987c432c095911e85a997db
274 lines
9.8 KiB
C++
274 lines
9.8 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "MtpServerJNI"
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#include "utils/Log.h"
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#include <stdio.h>
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#include <assert.h>
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#include <limits.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <utils/threads.h>
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#include "jni.h"
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#include "JNIHelp.h"
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#include "android_runtime/AndroidRuntime.h"
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#include "private/android_filesystem_config.h"
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#include "MtpServer.h"
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#include "MtpStorage.h"
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using namespace android;
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// MtpServer fields
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static jfieldID field_MtpServer_nativeContext;
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// MtpStorage fields
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static jfieldID field_MtpStorage_storageId;
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static jfieldID field_MtpStorage_path;
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static jfieldID field_MtpStorage_description;
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static jfieldID field_MtpStorage_reserveSpace;
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static jfieldID field_MtpStorage_removable;
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static jfieldID field_MtpStorage_maxFileSize;
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static Mutex sMutex;
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// ----------------------------------------------------------------------------
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// in android_mtp_MtpDatabase.cpp
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extern MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database);
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static inline MtpServer* getMtpServer(JNIEnv *env, jobject thiz) {
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return (MtpServer*)env->GetLongField(thiz, field_MtpServer_nativeContext);
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}
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static void android_mtp_configure(JNIEnv *, jobject, jboolean usePtp) {
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MtpServer::configure(usePtp);
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}
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static void
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android_mtp_MtpServer_setup(JNIEnv *env, jobject thiz, jobject javaDatabase, jboolean usePtp,
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jstring deviceInfoManufacturer,
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jstring deviceInfoModel,
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jstring deviceInfoDeviceVersion,
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jstring deviceInfoSerialNumber)
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{
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const char *deviceInfoManufacturerStr = env->GetStringUTFChars(deviceInfoManufacturer, NULL);
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const char *deviceInfoModelStr = env->GetStringUTFChars(deviceInfoModel, NULL);
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const char *deviceInfoDeviceVersionStr = env->GetStringUTFChars(deviceInfoDeviceVersion, NULL);
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const char *deviceInfoSerialNumberStr = env->GetStringUTFChars(deviceInfoSerialNumber, NULL);
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MtpServer* server = new MtpServer(getMtpDatabase(env, javaDatabase),
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usePtp, AID_MEDIA_RW, 0664, 0775,
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MtpString((deviceInfoManufacturerStr != NULL) ? deviceInfoManufacturerStr : ""),
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MtpString((deviceInfoModelStr != NULL) ? deviceInfoModelStr : ""),
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MtpString((deviceInfoDeviceVersionStr != NULL) ? deviceInfoDeviceVersionStr : ""),
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MtpString((deviceInfoSerialNumberStr != NULL) ? deviceInfoSerialNumberStr : ""));
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if (deviceInfoManufacturerStr != NULL) {
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env->ReleaseStringUTFChars(deviceInfoManufacturer, deviceInfoManufacturerStr);
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}
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if (deviceInfoModelStr != NULL) {
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env->ReleaseStringUTFChars(deviceInfoModel, deviceInfoModelStr);
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}
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if (deviceInfoDeviceVersionStr != NULL) {
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env->ReleaseStringUTFChars(deviceInfoDeviceVersion, deviceInfoDeviceVersionStr);
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}
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if (deviceInfoSerialNumberStr != NULL) {
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env->ReleaseStringUTFChars(deviceInfoSerialNumber, deviceInfoSerialNumberStr);
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}
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env->SetLongField(thiz, field_MtpServer_nativeContext, (jlong)server);
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}
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static void
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android_mtp_MtpServer_run(JNIEnv *env, jobject thiz)
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{
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MtpServer* server = getMtpServer(env, thiz);
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if (server)
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server->run();
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else
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ALOGE("server is null in run");
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}
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static void
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android_mtp_MtpServer_cleanup(JNIEnv *env, jobject thiz)
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{
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Mutex::Autolock autoLock(sMutex);
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MtpServer* server = getMtpServer(env, thiz);
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if (server) {
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delete server;
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env->SetLongField(thiz, field_MtpServer_nativeContext, 0);
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} else {
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ALOGE("server is null in cleanup");
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}
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}
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static void
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android_mtp_MtpServer_send_object_added(JNIEnv *env, jobject thiz, jint handle)
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{
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Mutex::Autolock autoLock(sMutex);
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MtpServer* server = getMtpServer(env, thiz);
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if (server)
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server->sendObjectAdded(handle);
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else
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ALOGE("server is null in send_object_added");
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}
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static void
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android_mtp_MtpServer_send_object_removed(JNIEnv *env, jobject thiz, jint handle)
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{
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Mutex::Autolock autoLock(sMutex);
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MtpServer* server = getMtpServer(env, thiz);
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if (server)
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server->sendObjectRemoved(handle);
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else
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ALOGE("server is null in send_object_removed");
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}
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static void
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android_mtp_MtpServer_send_device_property_changed(JNIEnv *env, jobject thiz, jint property)
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{
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Mutex::Autolock autoLock(sMutex);
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MtpServer* server = getMtpServer(env, thiz);
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if (server)
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server->sendDevicePropertyChanged(property);
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else
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ALOGE("server is null in send_object_removed");
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}
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static void
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android_mtp_MtpServer_add_storage(JNIEnv *env, jobject thiz, jobject jstorage)
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{
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Mutex::Autolock autoLock(sMutex);
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MtpServer* server = getMtpServer(env, thiz);
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if (server) {
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jint storageID = env->GetIntField(jstorage, field_MtpStorage_storageId);
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jstring path = (jstring)env->GetObjectField(jstorage, field_MtpStorage_path);
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jstring description = (jstring)env->GetObjectField(jstorage, field_MtpStorage_description);
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jlong reserveSpace = env->GetLongField(jstorage, field_MtpStorage_reserveSpace);
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jboolean removable = env->GetBooleanField(jstorage, field_MtpStorage_removable);
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jlong maxFileSize = env->GetLongField(jstorage, field_MtpStorage_maxFileSize);
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const char *pathStr = env->GetStringUTFChars(path, NULL);
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if (pathStr != NULL) {
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const char *descriptionStr = env->GetStringUTFChars(description, NULL);
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if (descriptionStr != NULL) {
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MtpStorage* storage = new MtpStorage(storageID, pathStr, descriptionStr,
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reserveSpace, removable, maxFileSize);
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server->addStorage(storage);
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env->ReleaseStringUTFChars(path, pathStr);
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env->ReleaseStringUTFChars(description, descriptionStr);
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} else {
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env->ReleaseStringUTFChars(path, pathStr);
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}
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}
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} else {
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ALOGE("server is null in add_storage");
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}
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}
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static void
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android_mtp_MtpServer_remove_storage(JNIEnv *env, jobject thiz, jint storageId)
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{
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Mutex::Autolock autoLock(sMutex);
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MtpServer* server = getMtpServer(env, thiz);
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if (server) {
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MtpStorage* storage = server->getStorage(storageId);
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if (storage) {
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server->removeStorage(storage);
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delete storage;
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}
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} else
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ALOGE("server is null in remove_storage");
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}
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// ----------------------------------------------------------------------------
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static const JNINativeMethod gMethods[] = {
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{"native_configure", "(Z)V", (void *)android_mtp_configure},
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{"native_setup", "(Landroid/mtp/MtpDatabase;ZLjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V",
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(void *)android_mtp_MtpServer_setup},
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{"native_run", "()V", (void *)android_mtp_MtpServer_run},
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{"native_cleanup", "()V", (void *)android_mtp_MtpServer_cleanup},
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{"native_send_object_added", "(I)V", (void *)android_mtp_MtpServer_send_object_added},
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{"native_send_object_removed", "(I)V", (void *)android_mtp_MtpServer_send_object_removed},
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{"native_send_device_property_changed", "(I)V",
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(void *)android_mtp_MtpServer_send_device_property_changed},
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{"native_add_storage", "(Landroid/mtp/MtpStorage;)V",
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(void *)android_mtp_MtpServer_add_storage},
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{"native_remove_storage", "(I)V", (void *)android_mtp_MtpServer_remove_storage},
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};
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int register_android_mtp_MtpServer(JNIEnv *env)
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{
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jclass clazz;
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clazz = env->FindClass("android/mtp/MtpStorage");
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if (clazz == NULL) {
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ALOGE("Can't find android/mtp/MtpStorage");
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return -1;
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}
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field_MtpStorage_storageId = env->GetFieldID(clazz, "mStorageId", "I");
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if (field_MtpStorage_storageId == NULL) {
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ALOGE("Can't find MtpStorage.mStorageId");
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return -1;
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}
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field_MtpStorage_path = env->GetFieldID(clazz, "mPath", "Ljava/lang/String;");
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if (field_MtpStorage_path == NULL) {
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ALOGE("Can't find MtpStorage.mPath");
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return -1;
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}
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field_MtpStorage_description = env->GetFieldID(clazz, "mDescription", "Ljava/lang/String;");
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if (field_MtpStorage_description == NULL) {
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ALOGE("Can't find MtpStorage.mDescription");
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return -1;
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}
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field_MtpStorage_reserveSpace = env->GetFieldID(clazz, "mReserveSpace", "J");
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if (field_MtpStorage_reserveSpace == NULL) {
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ALOGE("Can't find MtpStorage.mReserveSpace");
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return -1;
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}
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field_MtpStorage_removable = env->GetFieldID(clazz, "mRemovable", "Z");
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if (field_MtpStorage_removable == NULL) {
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ALOGE("Can't find MtpStorage.mRemovable");
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return -1;
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}
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field_MtpStorage_maxFileSize = env->GetFieldID(clazz, "mMaxFileSize", "J");
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if (field_MtpStorage_maxFileSize == NULL) {
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ALOGE("Can't find MtpStorage.mMaxFileSize");
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return -1;
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}
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clazz = env->FindClass("android/mtp/MtpServer");
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if (clazz == NULL) {
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ALOGE("Can't find android/mtp/MtpServer");
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return -1;
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}
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field_MtpServer_nativeContext = env->GetFieldID(clazz, "mNativeContext", "J");
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if (field_MtpServer_nativeContext == NULL) {
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ALOGE("Can't find MtpServer.mNativeContext");
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return -1;
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}
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return AndroidRuntime::registerNativeMethods(env,
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"android/mtp/MtpServer", gMethods, NELEM(gMethods));
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}
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