| /* |
| * Copyright (C) 2020 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 "StorageManager" |
| #include <android-base/file.h> |
| #include <android-base/logging.h> |
| #include <android-base/properties.h> |
| #include <android-base/unique_fd.h> |
| #include <fcntl.h> |
| #include <linux/fs.h> |
| |
| #include <nativehelper/JNIHelp.h> |
| #include "core_jni_helpers.h" |
| #include "filesystem_utils.h" |
| |
| namespace android { |
| |
| jboolean android_os_storage_StorageManager_setQuotaProjectId(JNIEnv* env, jobject self, |
| jstring path, jlong projectId) { |
| struct fsxattr fsx; |
| ScopedUtfChars utf_chars_path(env, path); |
| |
| static bool sdcardFsSupported = IsSdcardfsUsed(); |
| if (sdcardFsSupported) { |
| // sdcardfs doesn't support project ID quota tracking and takes care of quota |
| // in a different way. |
| return JNI_TRUE; |
| } |
| |
| if (projectId > UINT32_MAX) { |
| LOG(ERROR) << "Invalid project id: " << projectId; |
| return JNI_FALSE; |
| } |
| |
| android::base::unique_fd fd( |
| TEMP_FAILURE_RETRY(open(utf_chars_path.c_str(), O_RDONLY | O_CLOEXEC))); |
| if (fd == -1) { |
| PLOG(ERROR) << "Failed to open " << utf_chars_path.c_str() << " to set project id."; |
| return JNI_FALSE; |
| } |
| |
| int ret = ioctl(fd, FS_IOC_FSGETXATTR, &fsx); |
| if (ret == -1) { |
| PLOG(ERROR) << "Failed to get extended attributes for " << utf_chars_path.c_str() |
| << " to get project id."; |
| return JNI_FALSE; |
| } |
| |
| fsx.fsx_projid = projectId; |
| ret = ioctl(fd, FS_IOC_FSSETXATTR, &fsx); |
| if (ret == -1) { |
| PLOG(ERROR) << "Failed to set extended attributes for " << utf_chars_path.c_str() |
| << " to set project id."; |
| return JNI_FALSE; |
| } |
| |
| return JNI_TRUE; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| static const JNINativeMethod gStorageManagerMethods[] = { |
| {"setQuotaProjectId", "(Ljava/lang/String;J)Z", |
| (void*)android_os_storage_StorageManager_setQuotaProjectId}, |
| }; |
| |
| const char* const kStorageManagerPathName = "android/os/storage/StorageManager"; |
| |
| int register_android_os_storage_StorageManager(JNIEnv* env) { |
| return RegisterMethodsOrDie(env, kStorageManagerPathName, gStorageManagerMethods, |
| NELEM(gStorageManagerMethods)); |
| } |
| |
| }; // namespace android |