Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "MtpServerJNI" |
| 18 | #include "utils/Log.h" |
| 19 | |
| 20 | #include <stdio.h> |
| 21 | #include <assert.h> |
| 22 | #include <limits.h> |
| 23 | #include <unistd.h> |
| 24 | #include <fcntl.h> |
| 25 | #include <utils/threads.h> |
| 26 | |
| 27 | #include "jni.h" |
| 28 | #include "JNIHelp.h" |
| 29 | #include "android_runtime/AndroidRuntime.h" |
Mike Lockwood | dad6927 | 2010-07-02 15:15:07 -0400 | [diff] [blame] | 30 | #include "private/android_filesystem_config.h" |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 31 | |
| 32 | #include "MtpServer.h" |
Mike Lockwood | 467ca0d | 2011-02-18 09:07:14 -0500 | [diff] [blame] | 33 | #include "MtpStorage.h" |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 34 | |
Mike Lockwood | 81ea83d | 2010-06-30 17:49:41 -0400 | [diff] [blame] | 35 | using namespace android; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 36 | |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 37 | // MtpServer fields |
| 38 | static jfieldID field_MtpServer_nativeContext; |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 39 | |
| 40 | // MtpStorage fields |
| 41 | static jfieldID field_MtpStorage_storageId; |
| 42 | static jfieldID field_MtpStorage_path; |
| 43 | static jfieldID field_MtpStorage_description; |
| 44 | static jfieldID field_MtpStorage_reserveSpace; |
Mike Lockwood | 5169054 | 2011-05-09 20:16:05 -0700 | [diff] [blame] | 45 | static jfieldID field_MtpStorage_removable; |
Mike Lockwood | 7a59dd2 | 2011-07-11 09:18:03 -0400 | [diff] [blame] | 46 | static jfieldID field_MtpStorage_maxFileSize; |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 47 | |
| 48 | static Mutex sMutex; |
| 49 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 50 | // ---------------------------------------------------------------------------- |
| 51 | |
Mike Lockwood | 0cd0136 | 2010-12-30 11:54:33 -0500 | [diff] [blame] | 52 | // in android_mtp_MtpDatabase.cpp |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 53 | extern MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 54 | |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 55 | static inline MtpServer* getMtpServer(JNIEnv *env, jobject thiz) { |
Ashok Bhat | e2e5932 | 2013-12-17 19:04:19 +0000 | [diff] [blame] | 56 | return (MtpServer*)env->GetLongField(thiz, field_MtpServer_nativeContext); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 57 | } |
| 58 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 59 | static void |
Mike Lockwood | 7d40d42 | 2011-06-21 08:27:06 -0400 | [diff] [blame] | 60 | android_mtp_MtpServer_setup(JNIEnv *env, jobject thiz, jobject javaDatabase, jboolean usePtp) |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 61 | { |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 62 | int fd = open("/dev/mtp_usb", O_RDWR); |
| 63 | if (fd >= 0) { |
| 64 | MtpServer* server = new MtpServer(fd, getMtpDatabase(env, javaDatabase), |
| 65 | usePtp, AID_MEDIA_RW, 0664, 0775); |
Ashok Bhat | e2e5932 | 2013-12-17 19:04:19 +0000 | [diff] [blame] | 66 | env->SetLongField(thiz, field_MtpServer_nativeContext, (jlong)server); |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 67 | } else { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 68 | ALOGE("could not open MTP driver, errno: %d", errno); |
Mike Lockwood | 071b2b6 | 2011-01-25 09:29:27 -0800 | [diff] [blame] | 69 | } |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | static void |
| 73 | android_mtp_MtpServer_run(JNIEnv *env, jobject thiz) |
| 74 | { |
| 75 | MtpServer* server = getMtpServer(env, thiz); |
| 76 | if (server) |
| 77 | server->run(); |
| 78 | else |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 79 | ALOGE("server is null in run"); |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | static void |
| 83 | android_mtp_MtpServer_cleanup(JNIEnv *env, jobject thiz) |
| 84 | { |
| 85 | Mutex::Autolock autoLock(sMutex); |
| 86 | |
| 87 | MtpServer* server = getMtpServer(env, thiz); |
| 88 | if (server) { |
| 89 | delete server; |
Ashok Bhat | e2e5932 | 2013-12-17 19:04:19 +0000 | [diff] [blame] | 90 | env->SetLongField(thiz, field_MtpServer_nativeContext, 0); |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 91 | } else { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 92 | ALOGE("server is null in cleanup"); |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 93 | } |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 94 | } |
| 95 | |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 96 | static void |
Mike Lockwood | 0cd0136 | 2010-12-30 11:54:33 -0500 | [diff] [blame] | 97 | android_mtp_MtpServer_send_object_added(JNIEnv *env, jobject thiz, jint handle) |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 98 | { |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 99 | Mutex::Autolock autoLock(sMutex); |
| 100 | |
| 101 | MtpServer* server = getMtpServer(env, thiz); |
| 102 | if (server) |
| 103 | server->sendObjectAdded(handle); |
| 104 | else |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 105 | ALOGE("server is null in send_object_added"); |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | static void |
Mike Lockwood | 0cd0136 | 2010-12-30 11:54:33 -0500 | [diff] [blame] | 109 | android_mtp_MtpServer_send_object_removed(JNIEnv *env, jobject thiz, jint handle) |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 110 | { |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 111 | Mutex::Autolock autoLock(sMutex); |
| 112 | |
| 113 | MtpServer* server = getMtpServer(env, thiz); |
| 114 | if (server) |
| 115 | server->sendObjectRemoved(handle); |
| 116 | else |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 117 | ALOGE("server is null in send_object_removed"); |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 118 | } |
| 119 | |
Mike Lockwood | eabe8bf | 2010-08-31 14:35:23 -0400 | [diff] [blame] | 120 | static void |
Mike Lockwood | 56c8524 | 2014-03-07 13:29:08 -0800 | [diff] [blame] | 121 | android_mtp_MtpServer_send_device_property_changed(JNIEnv *env, jobject thiz, jint property) |
| 122 | { |
| 123 | Mutex::Autolock autoLock(sMutex); |
| 124 | |
| 125 | MtpServer* server = getMtpServer(env, thiz); |
| 126 | if (server) |
| 127 | server->sendDevicePropertyChanged(property); |
| 128 | else |
| 129 | ALOGE("server is null in send_object_removed"); |
| 130 | } |
| 131 | |
| 132 | static void |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 133 | android_mtp_MtpServer_add_storage(JNIEnv *env, jobject thiz, jobject jstorage) |
Mike Lockwood | 66e57f6 | 2011-02-18 13:24:01 -0500 | [diff] [blame] | 134 | { |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 135 | Mutex::Autolock autoLock(sMutex); |
| 136 | |
| 137 | MtpServer* server = getMtpServer(env, thiz); |
| 138 | if (server) { |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 139 | jint storageID = env->GetIntField(jstorage, field_MtpStorage_storageId); |
| 140 | jstring path = (jstring)env->GetObjectField(jstorage, field_MtpStorage_path); |
| 141 | jstring description = (jstring)env->GetObjectField(jstorage, field_MtpStorage_description); |
| 142 | jlong reserveSpace = env->GetLongField(jstorage, field_MtpStorage_reserveSpace); |
Mike Lockwood | 5169054 | 2011-05-09 20:16:05 -0700 | [diff] [blame] | 143 | jboolean removable = env->GetBooleanField(jstorage, field_MtpStorage_removable); |
Mike Lockwood | 7a59dd2 | 2011-07-11 09:18:03 -0400 | [diff] [blame] | 144 | jlong maxFileSize = env->GetLongField(jstorage, field_MtpStorage_maxFileSize); |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 145 | |
| 146 | const char *pathStr = env->GetStringUTFChars(path, NULL); |
James Dong | 3977472 | 2011-04-06 11:57:48 -0700 | [diff] [blame] | 147 | if (pathStr != NULL) { |
| 148 | const char *descriptionStr = env->GetStringUTFChars(description, NULL); |
| 149 | if (descriptionStr != NULL) { |
Mike Lockwood | 7a59dd2 | 2011-07-11 09:18:03 -0400 | [diff] [blame] | 150 | MtpStorage* storage = new MtpStorage(storageID, pathStr, descriptionStr, |
| 151 | reserveSpace, removable, maxFileSize); |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 152 | server->addStorage(storage); |
James Dong | 3977472 | 2011-04-06 11:57:48 -0700 | [diff] [blame] | 153 | env->ReleaseStringUTFChars(path, pathStr); |
| 154 | env->ReleaseStringUTFChars(description, descriptionStr); |
| 155 | } else { |
| 156 | env->ReleaseStringUTFChars(path, pathStr); |
| 157 | } |
| 158 | } |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 159 | } else { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 160 | ALOGE("server is null in add_storage"); |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 161 | } |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 162 | } |
| 163 | |
| 164 | static void |
| 165 | android_mtp_MtpServer_remove_storage(JNIEnv *env, jobject thiz, jint storageId) |
| 166 | { |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 167 | Mutex::Autolock autoLock(sMutex); |
| 168 | |
| 169 | MtpServer* server = getMtpServer(env, thiz); |
| 170 | if (server) { |
| 171 | MtpStorage* storage = server->getStorage(storageId); |
| 172 | if (storage) { |
| 173 | server->removeStorage(storage); |
| 174 | delete storage; |
| 175 | } |
| 176 | } else |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 177 | ALOGE("server is null in remove_storage"); |
Mike Lockwood | 66e57f6 | 2011-02-18 13:24:01 -0500 | [diff] [blame] | 178 | } |
| 179 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 180 | // ---------------------------------------------------------------------------- |
| 181 | |
Daniel Micay | 76f6a86 | 2015-09-19 17:31:01 -0400 | [diff] [blame^] | 182 | static const JNINativeMethod gMethods[] = { |
Mike Lockwood | 7d40d42 | 2011-06-21 08:27:06 -0400 | [diff] [blame] | 183 | {"native_setup", "(Landroid/mtp/MtpDatabase;Z)V", |
Mike Lockwood | 0cd0136 | 2010-12-30 11:54:33 -0500 | [diff] [blame] | 184 | (void *)android_mtp_MtpServer_setup}, |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 185 | {"native_run", "()V", (void *)android_mtp_MtpServer_run}, |
| 186 | {"native_cleanup", "()V", (void *)android_mtp_MtpServer_cleanup}, |
Mike Lockwood | 0cd0136 | 2010-12-30 11:54:33 -0500 | [diff] [blame] | 187 | {"native_send_object_added", "(I)V", (void *)android_mtp_MtpServer_send_object_added}, |
| 188 | {"native_send_object_removed", "(I)V", (void *)android_mtp_MtpServer_send_object_removed}, |
Mike Lockwood | 56c8524 | 2014-03-07 13:29:08 -0800 | [diff] [blame] | 189 | {"native_send_device_property_changed", "(I)V", |
| 190 | (void *)android_mtp_MtpServer_send_device_property_changed}, |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 191 | {"native_add_storage", "(Landroid/mtp/MtpStorage;)V", |
| 192 | (void *)android_mtp_MtpServer_add_storage}, |
| 193 | {"native_remove_storage", "(I)V", (void *)android_mtp_MtpServer_remove_storage}, |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 194 | }; |
| 195 | |
Mike Lockwood | 0cd0136 | 2010-12-30 11:54:33 -0500 | [diff] [blame] | 196 | int register_android_mtp_MtpServer(JNIEnv *env) |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 197 | { |
| 198 | jclass clazz; |
| 199 | |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 200 | clazz = env->FindClass("android/mtp/MtpStorage"); |
| 201 | if (clazz == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 202 | ALOGE("Can't find android/mtp/MtpStorage"); |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 203 | return -1; |
| 204 | } |
| 205 | field_MtpStorage_storageId = env->GetFieldID(clazz, "mStorageId", "I"); |
| 206 | if (field_MtpStorage_storageId == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 207 | ALOGE("Can't find MtpStorage.mStorageId"); |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 208 | return -1; |
| 209 | } |
| 210 | field_MtpStorage_path = env->GetFieldID(clazz, "mPath", "Ljava/lang/String;"); |
| 211 | if (field_MtpStorage_path == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 212 | ALOGE("Can't find MtpStorage.mPath"); |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 213 | return -1; |
| 214 | } |
| 215 | field_MtpStorage_description = env->GetFieldID(clazz, "mDescription", "Ljava/lang/String;"); |
| 216 | if (field_MtpStorage_description == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 217 | ALOGE("Can't find MtpStorage.mDescription"); |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 218 | return -1; |
| 219 | } |
| 220 | field_MtpStorage_reserveSpace = env->GetFieldID(clazz, "mReserveSpace", "J"); |
| 221 | if (field_MtpStorage_reserveSpace == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 222 | ALOGE("Can't find MtpStorage.mReserveSpace"); |
Mike Lockwood | 5169054 | 2011-05-09 20:16:05 -0700 | [diff] [blame] | 223 | return -1; |
| 224 | } |
| 225 | field_MtpStorage_removable = env->GetFieldID(clazz, "mRemovable", "Z"); |
| 226 | if (field_MtpStorage_removable == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 227 | ALOGE("Can't find MtpStorage.mRemovable"); |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 228 | return -1; |
| 229 | } |
Mike Lockwood | 7a59dd2 | 2011-07-11 09:18:03 -0400 | [diff] [blame] | 230 | field_MtpStorage_maxFileSize = env->GetFieldID(clazz, "mMaxFileSize", "J"); |
| 231 | if (field_MtpStorage_maxFileSize == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 232 | ALOGE("Can't find MtpStorage.mMaxFileSize"); |
Mike Lockwood | 7a59dd2 | 2011-07-11 09:18:03 -0400 | [diff] [blame] | 233 | return -1; |
| 234 | } |
Mike Lockwood | b239b683 | 2011-04-05 10:21:27 -0400 | [diff] [blame] | 235 | |
Mike Lockwood | 0cd0136 | 2010-12-30 11:54:33 -0500 | [diff] [blame] | 236 | clazz = env->FindClass("android/mtp/MtpServer"); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 237 | if (clazz == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 238 | ALOGE("Can't find android/mtp/MtpServer"); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 239 | return -1; |
| 240 | } |
Ashok Bhat | e2e5932 | 2013-12-17 19:04:19 +0000 | [diff] [blame] | 241 | field_MtpServer_nativeContext = env->GetFieldID(clazz, "mNativeContext", "J"); |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 242 | if (field_MtpServer_nativeContext == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 243 | ALOGE("Can't find MtpServer.mNativeContext"); |
Mike Lockwood | dcc3194 | 2011-07-11 15:04:38 -0400 | [diff] [blame] | 244 | return -1; |
| 245 | } |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 246 | |
| 247 | return AndroidRuntime::registerNativeMethods(env, |
Mike Lockwood | 0cd0136 | 2010-12-30 11:54:33 -0500 | [diff] [blame] | 248 | "android/mtp/MtpServer", gMethods, NELEM(gMethods)); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 249 | } |