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3042 lines
113 KiB
3042 lines
113 KiB
/*
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** Copyright 2008, 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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#include "InstalldNativeService.h"
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#define ATRACE_TAG ATRACE_TAG_PACKAGE_MANAGER
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#include <algorithm>
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#include <errno.h>
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#include <fstream>
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#include <fts.h>
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#include <functional>
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#include <inttypes.h>
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#include <regex>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/capability.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/mount.h>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <sys/statvfs.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/xattr.h>
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#include <unistd.h>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/parseint.h>
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#include <android-base/properties.h>
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#include <android-base/scopeguard.h>
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#include <android-base/stringprintf.h>
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#include <android-base/strings.h>
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#include <android-base/unique_fd.h>
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#include <cutils/ashmem.h>
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#include <cutils/fs.h>
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#include <cutils/properties.h>
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#include <cutils/sched_policy.h>
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#include <log/log.h> // TODO: Move everything to base/logging.
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#include <logwrap/logwrap.h>
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#include <private/android_filesystem_config.h>
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#include <private/android_projectid_config.h>
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#include <selinux/android.h>
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#include <system/thread_defs.h>
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#include <utils/Trace.h>
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#include "dexopt.h"
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#include "globals.h"
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#include "installd_deps.h"
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#include "otapreopt_utils.h"
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#include "utils.h"
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#include "view_compiler.h"
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#include "CacheTracker.h"
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#include "CrateManager.h"
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#include "MatchExtensionGen.h"
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#include "QuotaUtils.h"
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#ifndef LOG_TAG
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#define LOG_TAG "installd"
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#endif
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using android::base::ParseUint;
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using android::base::StringPrintf;
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using std::endl;
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namespace android {
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namespace installd {
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// An uuid used in unit tests.
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static constexpr const char* kTestUuid = "TEST";
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static constexpr const mode_t kRollbackFolderMode = 0700;
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static constexpr const char* kCpPath = "/system/bin/cp";
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static constexpr const char* kXattrDefault = "user.default";
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static constexpr const char* kDataMirrorCePath = "/data_mirror/data_ce";
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static constexpr const char* kDataMirrorDePath = "/data_mirror/data_de";
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static constexpr const int MIN_RESTRICTED_HOME_SDK_VERSION = 24; // > M
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static constexpr const char* PKG_LIB_POSTFIX = "/lib";
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static constexpr const char* CACHE_DIR_POSTFIX = "/cache";
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static constexpr const char* CODE_CACHE_DIR_POSTFIX = "/code_cache";
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// fsverity assumes the page size is always 4096. If not, the feature can not be
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// enabled.
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static constexpr int kVerityPageSize = 4096;
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static constexpr size_t kSha256Size = 32;
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static constexpr const char* kPropApkVerityMode = "ro.apk_verity.mode";
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static constexpr const char* kFuseProp = "persist.sys.fuse";
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/**
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* Property to control if app data isolation is enabled.
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*/
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static constexpr const char* kAppDataIsolationEnabledProperty = "persist.zygote.app_data_isolation";
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static constexpr const char* kMntSdcardfs = "/mnt/runtime/default/";
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static constexpr const char* kMntFuse = "/mnt/pass_through/0/";
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static std::atomic<bool> sAppDataIsolationEnabled(false);
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namespace {
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constexpr const char* kDump = "android.permission.DUMP";
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static binder::Status ok() {
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return binder::Status::ok();
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}
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static binder::Status exception(uint32_t code, const std::string& msg) {
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LOG(ERROR) << msg << " (" << code << ")";
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return binder::Status::fromExceptionCode(code, String8(msg.c_str()));
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}
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static binder::Status error() {
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return binder::Status::fromServiceSpecificError(errno);
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}
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static binder::Status error(const std::string& msg) {
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PLOG(ERROR) << msg;
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return binder::Status::fromServiceSpecificError(errno, String8(msg.c_str()));
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}
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static binder::Status error(uint32_t code, const std::string& msg) {
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LOG(ERROR) << msg << " (" << code << ")";
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return binder::Status::fromServiceSpecificError(code, String8(msg.c_str()));
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}
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binder::Status checkPermission(const char* permission) {
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pid_t pid;
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uid_t uid;
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if (checkCallingPermission(String16(permission), reinterpret_cast<int32_t*>(&pid),
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reinterpret_cast<int32_t*>(&uid))) {
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return ok();
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} else {
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return exception(binder::Status::EX_SECURITY,
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StringPrintf("UID %d / PID %d lacks permission %s", uid, pid, permission));
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}
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}
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binder::Status checkUid(uid_t expectedUid) {
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uid_t uid = IPCThreadState::self()->getCallingUid();
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if (uid == expectedUid || uid == AID_ROOT) {
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return ok();
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} else {
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return exception(binder::Status::EX_SECURITY,
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StringPrintf("UID %d is not expected UID %d", uid, expectedUid));
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}
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}
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binder::Status checkArgumentUuid(const std::optional<std::string>& uuid) {
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if (!uuid || is_valid_filename(*uuid)) {
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return ok();
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} else {
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return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
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StringPrintf("UUID %s is malformed", uuid->c_str()));
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}
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}
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binder::Status checkArgumentUuidTestOrNull(const std::optional<std::string>& uuid) {
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if (!uuid || strcmp(uuid->c_str(), kTestUuid) == 0) {
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return ok();
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} else {
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return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
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StringPrintf("UUID must be null or \"%s\", got: %s", kTestUuid, uuid->c_str()));
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}
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}
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binder::Status checkArgumentPackageName(const std::string& packageName) {
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if (is_valid_package_name(packageName)) {
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return ok();
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} else {
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return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
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StringPrintf("Package name %s is malformed", packageName.c_str()));
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}
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}
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binder::Status checkArgumentPath(const std::string& path) {
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if (path.empty()) {
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return exception(binder::Status::EX_ILLEGAL_ARGUMENT, "Missing path");
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}
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if (path[0] != '/') {
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return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
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StringPrintf("Path %s is relative", path.c_str()));
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}
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if ((path + '/').find("/../") != std::string::npos) {
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return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
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StringPrintf("Path %s is shady", path.c_str()));
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}
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for (const char& c : path) {
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if (c == '\0' || c == '\n') {
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return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
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StringPrintf("Path %s is malformed", path.c_str()));
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}
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}
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return ok();
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}
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binder::Status checkArgumentPath(const std::optional<std::string>& path) {
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if (path) {
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return checkArgumentPath(*path);
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} else {
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return ok();
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}
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}
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#define ENFORCE_UID(uid) { \
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binder::Status status = checkUid((uid)); \
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if (!status.isOk()) { \
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return status; \
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} \
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}
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#define CHECK_ARGUMENT_UUID(uuid) { \
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binder::Status status = checkArgumentUuid((uuid)); \
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if (!status.isOk()) { \
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return status; \
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} \
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}
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#define CHECK_ARGUMENT_UUID_IS_TEST_OR_NULL(uuid) { \
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auto status = checkArgumentUuidTestOrNull(uuid); \
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if (!status.isOk()) { \
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return status; \
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} \
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} \
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#define CHECK_ARGUMENT_PACKAGE_NAME(packageName) { \
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binder::Status status = \
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checkArgumentPackageName((packageName)); \
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if (!status.isOk()) { \
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return status; \
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} \
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}
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#define CHECK_ARGUMENT_PATH(path) { \
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binder::Status status = checkArgumentPath((path)); \
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if (!status.isOk()) { \
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return status; \
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} \
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}
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#define ASSERT_PAGE_SIZE_4K() { \
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if (getpagesize() != kVerityPageSize) { \
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return error("FSVerity only supports 4K pages"); \
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} \
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}
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} // namespace
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status_t InstalldNativeService::start() {
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IPCThreadState::self()->disableBackgroundScheduling(true);
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status_t ret = BinderService<InstalldNativeService>::publish();
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if (ret != android::OK) {
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return ret;
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}
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sp<ProcessState> ps(ProcessState::self());
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ps->startThreadPool();
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ps->giveThreadPoolName();
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sAppDataIsolationEnabled = android::base::GetBoolProperty(
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kAppDataIsolationEnabledProperty, true);
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return android::OK;
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}
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status_t InstalldNativeService::dump(int fd, const Vector<String16> & /* args */) {
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auto out = std::fstream(StringPrintf("/proc/self/fd/%d", fd));
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const binder::Status dump_permission = checkPermission(kDump);
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if (!dump_permission.isOk()) {
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out << dump_permission.toString8() << endl;
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return PERMISSION_DENIED;
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}
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std::lock_guard<std::recursive_mutex> lock(mLock);
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out << "installd is happy!" << endl;
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{
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std::lock_guard<std::recursive_mutex> lock(mMountsLock);
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out << endl << "Storage mounts:" << endl;
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for (const auto& n : mStorageMounts) {
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out << " " << n.first << " = " << n.second << endl;
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}
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}
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{
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std::lock_guard<std::recursive_mutex> lock(mQuotasLock);
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out << endl << "Per-UID cache quotas:" << endl;
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for (const auto& n : mCacheQuotas) {
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out << " " << n.first << " = " << n.second << endl;
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}
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}
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out << endl;
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out.flush();
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return NO_ERROR;
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}
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/**
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* Perform restorecon of the given path, but only perform recursive restorecon
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* if the label of that top-level file actually changed. This can save us
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* significant time by avoiding no-op traversals of large filesystem trees.
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*/
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static int restorecon_app_data_lazy(const std::string& path, const std::string& seInfo, uid_t uid,
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bool existing) {
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int res = 0;
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char* before = nullptr;
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char* after = nullptr;
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// Note that SELINUX_ANDROID_RESTORECON_DATADATA flag is set by
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// libselinux. Not needed here.
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if (lgetfilecon(path.c_str(), &before) < 0) {
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PLOG(ERROR) << "Failed before getfilecon for " << path;
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goto fail;
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}
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if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid, 0) < 0) {
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PLOG(ERROR) << "Failed top-level restorecon for " << path;
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goto fail;
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}
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if (lgetfilecon(path.c_str(), &after) < 0) {
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PLOG(ERROR) << "Failed after getfilecon for " << path;
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goto fail;
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}
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// If the initial top-level restorecon above changed the label, then go
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// back and restorecon everything recursively
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if (strcmp(before, after)) {
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if (existing) {
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LOG(DEBUG) << "Detected label change from " << before << " to " << after << " at "
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<< path << "; running recursive restorecon";
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}
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if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid,
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SELINUX_ANDROID_RESTORECON_RECURSE) < 0) {
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PLOG(ERROR) << "Failed recursive restorecon for " << path;
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goto fail;
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}
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}
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goto done;
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fail:
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res = -1;
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done:
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free(before);
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free(after);
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return res;
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}
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static int restorecon_app_data_lazy(const std::string& parent, const char* name,
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const std::string& seInfo, uid_t uid, bool existing) {
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return restorecon_app_data_lazy(StringPrintf("%s/%s", parent.c_str(), name), seInfo, uid,
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existing);
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}
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static int prepare_app_dir(const std::string& path, mode_t target_mode, uid_t uid) {
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if (fs_prepare_dir_strict(path.c_str(), target_mode, uid, uid) != 0) {
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PLOG(ERROR) << "Failed to prepare " << path;
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return -1;
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}
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return 0;
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}
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static bool prepare_app_profile_dir(const std::string& packageName, int32_t appId, int32_t userId) {
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if (!property_get_bool("dalvik.vm.usejitprofiles", false)) {
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return true;
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}
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int32_t uid = multiuser_get_uid(userId, appId);
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int shared_app_gid = multiuser_get_shared_gid(userId, appId);
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if (shared_app_gid == -1) {
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// TODO(calin): this should no longer be possible but do not continue if we don't get
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// a valid shared gid.
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PLOG(WARNING) << "Invalid shared_app_gid for " << packageName;
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return true;
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}
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const std::string profile_dir =
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create_primary_current_profile_package_dir_path(userId, packageName);
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// read-write-execute only for the app user.
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if (fs_prepare_dir_strict(profile_dir.c_str(), 0700, uid, uid) != 0) {
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PLOG(ERROR) << "Failed to prepare " << profile_dir;
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return false;
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}
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if (selinux_android_restorecon(profile_dir.c_str(), 0)) {
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PLOG(ERROR) << "Failed to restorecon " << profile_dir;
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return false;
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}
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|
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const std::string ref_profile_path =
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create_primary_reference_profile_package_dir_path(packageName);
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|
|
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// Prepare the reference profile directory. Note that we use the non strict version of
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// fs_prepare_dir. This will fix the permission and the ownership to the correct values.
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// This is particularly important given that in O there were some fixes for how the
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// shared_app_gid is computed.
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//
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// Note that by the time we get here we know that we are using a correct uid (otherwise
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// prepare_app_dir and the above fs_prepare_file_strict which check the uid). So we
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// are sure that the gid being used belongs to the owning app and not someone else.
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//
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// dex2oat/profman runs under the shared app gid and it needs to read/write reference profiles.
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if (fs_prepare_dir(ref_profile_path.c_str(), 0770, AID_SYSTEM, shared_app_gid) != 0) {
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PLOG(ERROR) << "Failed to prepare " << ref_profile_path;
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return false;
|
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}
|
|
|
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return true;
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}
|
|
|
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binder::Status InstalldNativeService::createAppData(const std::optional<std::string>& uuid,
|
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const std::string& packageName, int32_t userId, int32_t flags, int32_t appId,
|
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const std::string& seInfo, int32_t targetSdkVersion, int64_t* _aidl_return) {
|
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ENFORCE_UID(AID_SYSTEM);
|
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CHECK_ARGUMENT_UUID(uuid);
|
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CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
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std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
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const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
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const char* pkgname = packageName.c_str();
|
|
|
|
// Assume invalid inode unless filled in below
|
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if (_aidl_return != nullptr) *_aidl_return = -1;
|
|
|
|
int32_t uid = multiuser_get_uid(userId, appId);
|
|
int32_t cacheGid = multiuser_get_cache_gid(userId, appId);
|
|
mode_t targetMode = targetSdkVersion >= MIN_RESTRICTED_HOME_SDK_VERSION ? 0700 : 0751;
|
|
|
|
// If UID doesn't have a specific cache GID, use UID value
|
|
if (cacheGid == -1) {
|
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cacheGid = uid;
|
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}
|
|
|
|
if (flags & FLAG_STORAGE_CE) {
|
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auto path = create_data_user_ce_package_path(uuid_, userId, pkgname);
|
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bool existing = (access(path.c_str(), F_OK) == 0);
|
|
|
|
if (prepare_app_dir(path, targetMode, uid) ||
|
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prepare_app_cache_dir(path, "cache", 02771, uid, cacheGid) ||
|
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prepare_app_cache_dir(path, "code_cache", 02771, uid, cacheGid)) {
|
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return error("Failed to prepare " + path);
|
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}
|
|
|
|
// Consider restorecon over contents if label changed
|
|
if (restorecon_app_data_lazy(path, seInfo, uid, existing) ||
|
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restorecon_app_data_lazy(path, "cache", seInfo, uid, existing) ||
|
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restorecon_app_data_lazy(path, "code_cache", seInfo, uid, existing)) {
|
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return error("Failed to restorecon " + path);
|
|
}
|
|
|
|
// Remember inode numbers of cache directories so that we can clear
|
|
// contents while CE storage is locked
|
|
if (write_path_inode(path, "cache", kXattrInodeCache) ||
|
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write_path_inode(path, "code_cache", kXattrInodeCodeCache)) {
|
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return error("Failed to write_path_inode for " + path);
|
|
}
|
|
|
|
// And return the CE inode of the top-level data directory so we can
|
|
// clear contents while CE storage is locked
|
|
if (_aidl_return != nullptr) {
|
|
ino_t result;
|
|
if (get_path_inode(path, &result) != 0) {
|
|
return error("Failed to get_path_inode for " + path);
|
|
}
|
|
*_aidl_return = static_cast<uint64_t>(result);
|
|
}
|
|
}
|
|
if (flags & FLAG_STORAGE_DE) {
|
|
auto path = create_data_user_de_package_path(uuid_, userId, pkgname);
|
|
bool existing = (access(path.c_str(), F_OK) == 0);
|
|
|
|
if (prepare_app_dir(path, targetMode, uid) ||
|
|
prepare_app_cache_dir(path, "cache", 02771, uid, cacheGid) ||
|
|
prepare_app_cache_dir(path, "code_cache", 02771, uid, cacheGid)) {
|
|
return error("Failed to prepare " + path);
|
|
}
|
|
|
|
// Consider restorecon over contents if label changed
|
|
if (restorecon_app_data_lazy(path, seInfo, uid, existing) ||
|
|
restorecon_app_data_lazy(path, "cache", seInfo, uid, existing) ||
|
|
restorecon_app_data_lazy(path, "code_cache", seInfo, uid, existing)) {
|
|
return error("Failed to restorecon " + path);
|
|
}
|
|
|
|
if (!prepare_app_profile_dir(packageName, appId, userId)) {
|
|
return error("Failed to prepare profiles for " + packageName);
|
|
}
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
|
|
binder::Status InstalldNativeService::createAppData(
|
|
const android::os::CreateAppDataArgs& args,
|
|
android::os::CreateAppDataResult* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
int64_t ceDataInode = -1;
|
|
auto status = createAppData(args.uuid, args.packageName, args.userId, args.flags, args.appId,
|
|
args.seInfo, args.targetSdkVersion, &ceDataInode);
|
|
_aidl_return->ceDataInode = ceDataInode;
|
|
_aidl_return->exceptionCode = status.exceptionCode();
|
|
_aidl_return->exceptionMessage = status.exceptionMessage();
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::createAppDataBatched(
|
|
const std::vector<android::os::CreateAppDataArgs>& args,
|
|
std::vector<android::os::CreateAppDataResult>* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
std::vector<android::os::CreateAppDataResult> results;
|
|
for (auto arg : args) {
|
|
android::os::CreateAppDataResult result;
|
|
createAppData(arg, &result);
|
|
results.push_back(result);
|
|
}
|
|
*_aidl_return = results;
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::migrateAppData(const std::optional<std::string>& uuid,
|
|
const std::string& packageName, int32_t userId, int32_t flags) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
const char* pkgname = packageName.c_str();
|
|
|
|
// This method only exists to upgrade system apps that have requested
|
|
// forceDeviceEncrypted, so their default storage always lives in a
|
|
// consistent location. This only works on non-FBE devices, since we
|
|
// never want to risk exposing data on a device with real CE/DE storage.
|
|
|
|
auto ce_path = create_data_user_ce_package_path(uuid_, userId, pkgname);
|
|
auto de_path = create_data_user_de_package_path(uuid_, userId, pkgname);
|
|
|
|
// If neither directory is marked as default, assume CE is default
|
|
if (getxattr(ce_path.c_str(), kXattrDefault, nullptr, 0) == -1
|
|
&& getxattr(de_path.c_str(), kXattrDefault, nullptr, 0) == -1) {
|
|
if (setxattr(ce_path.c_str(), kXattrDefault, nullptr, 0, 0) != 0) {
|
|
return error("Failed to mark default storage " + ce_path);
|
|
}
|
|
}
|
|
|
|
// Migrate default data location if needed
|
|
auto target = (flags & FLAG_STORAGE_DE) ? de_path : ce_path;
|
|
auto source = (flags & FLAG_STORAGE_DE) ? ce_path : de_path;
|
|
|
|
if (getxattr(target.c_str(), kXattrDefault, nullptr, 0) == -1) {
|
|
LOG(WARNING) << "Requested default storage " << target
|
|
<< " is not active; migrating from " << source;
|
|
if (delete_dir_contents_and_dir(target) != 0) {
|
|
return error("Failed to delete " + target);
|
|
}
|
|
if (rename(source.c_str(), target.c_str()) != 0) {
|
|
return error("Failed to rename " + source + " to " + target);
|
|
}
|
|
}
|
|
|
|
return ok();
|
|
}
|
|
|
|
|
|
binder::Status InstalldNativeService::clearAppProfiles(const std::string& packageName,
|
|
const std::string& profileName) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
binder::Status res = ok();
|
|
if (!clear_primary_reference_profile(packageName, profileName)) {
|
|
res = error("Failed to clear reference profile for " + packageName);
|
|
}
|
|
if (!clear_primary_current_profiles(packageName, profileName)) {
|
|
res = error("Failed to clear current profiles for " + packageName);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::clearAppData(const std::optional<std::string>& uuid,
|
|
const std::string& packageName, int32_t userId, int32_t flags, int64_t ceDataInode) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
const char* pkgname = packageName.c_str();
|
|
|
|
binder::Status res = ok();
|
|
if (flags & FLAG_STORAGE_CE) {
|
|
auto path = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInode);
|
|
if (flags & FLAG_CLEAR_CACHE_ONLY) {
|
|
path = read_path_inode(path, "cache", kXattrInodeCache);
|
|
} else if (flags & FLAG_CLEAR_CODE_CACHE_ONLY) {
|
|
path = read_path_inode(path, "code_cache", kXattrInodeCodeCache);
|
|
}
|
|
if (access(path.c_str(), F_OK) == 0) {
|
|
if (delete_dir_contents(path) != 0) {
|
|
res = error("Failed to delete contents of " + path);
|
|
} else if ((flags & (FLAG_CLEAR_CACHE_ONLY | FLAG_CLEAR_CODE_CACHE_ONLY)) == 0) {
|
|
remove_path_xattr(path, kXattrInodeCache);
|
|
remove_path_xattr(path, kXattrInodeCodeCache);
|
|
}
|
|
}
|
|
}
|
|
if (flags & FLAG_STORAGE_DE) {
|
|
std::string suffix = "";
|
|
bool only_cache = false;
|
|
if (flags & FLAG_CLEAR_CACHE_ONLY) {
|
|
suffix = CACHE_DIR_POSTFIX;
|
|
only_cache = true;
|
|
} else if (flags & FLAG_CLEAR_CODE_CACHE_ONLY) {
|
|
suffix = CODE_CACHE_DIR_POSTFIX;
|
|
only_cache = true;
|
|
}
|
|
|
|
auto path = create_data_user_de_package_path(uuid_, userId, pkgname) + suffix;
|
|
if (access(path.c_str(), F_OK) == 0) {
|
|
if (delete_dir_contents(path) != 0) {
|
|
res = error("Failed to delete contents of " + path);
|
|
}
|
|
}
|
|
}
|
|
if (flags & FLAG_STORAGE_EXTERNAL) {
|
|
std::lock_guard<std::recursive_mutex> lock(mMountsLock);
|
|
for (const auto& n : mStorageMounts) {
|
|
auto extPath = n.second;
|
|
|
|
if (android::base::GetBoolProperty(kFuseProp, false)) {
|
|
std::regex re("^\\/mnt\\/pass_through\\/[0-9]+\\/emulated");
|
|
if (std::regex_match(extPath, re)) {
|
|
extPath += "/" + std::to_string(userId);
|
|
}
|
|
} else {
|
|
if (n.first.compare(0, 14, "/mnt/media_rw/") != 0) {
|
|
extPath += StringPrintf("/%d", userId);
|
|
} else if (userId != 0) {
|
|
// TODO: support devices mounted under secondary users
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (flags & FLAG_CLEAR_CACHE_ONLY) {
|
|
// Clear only cached data from shared storage
|
|
auto path = StringPrintf("%s/Android/data/%s/cache", extPath.c_str(), pkgname);
|
|
if (delete_dir_contents(path, true) != 0) {
|
|
res = error("Failed to delete contents of " + path);
|
|
}
|
|
} else if (flags & FLAG_CLEAR_CODE_CACHE_ONLY) {
|
|
// No code cache on shared storage
|
|
} else {
|
|
// Clear everything on shared storage
|
|
auto path = StringPrintf("%s/Android/data/%s", extPath.c_str(), pkgname);
|
|
if (delete_dir_contents(path, true) != 0) {
|
|
res = error("Failed to delete contents of " + path);
|
|
}
|
|
path = StringPrintf("%s/Android/media/%s", extPath.c_str(), pkgname);
|
|
if (delete_dir_contents(path, true) != 0) {
|
|
res = error("Failed to delete contents of " + path);
|
|
}
|
|
// Note that we explicitly don't delete OBBs - those are only removed on
|
|
// app uninstall.
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static int destroy_app_reference_profile(const std::string& pkgname) {
|
|
return delete_dir_contents_and_dir(
|
|
create_primary_reference_profile_package_dir_path(pkgname),
|
|
/*ignore_if_missing*/ true);
|
|
}
|
|
|
|
static int destroy_app_current_profiles(const std::string& pkgname, userid_t userid) {
|
|
return delete_dir_contents_and_dir(
|
|
create_primary_current_profile_package_dir_path(userid, pkgname),
|
|
/*ignore_if_missing*/ true);
|
|
}
|
|
|
|
binder::Status InstalldNativeService::destroyAppProfiles(const std::string& packageName) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
binder::Status res = ok();
|
|
std::vector<userid_t> users = get_known_users(/*volume_uuid*/ nullptr);
|
|
for (auto user : users) {
|
|
if (destroy_app_current_profiles(packageName, user) != 0) {
|
|
res = error("Failed to destroy current profiles for " + packageName);
|
|
}
|
|
}
|
|
if (destroy_app_reference_profile(packageName) != 0) {
|
|
res = error("Failed to destroy reference profile for " + packageName);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::destroyAppData(const std::optional<std::string>& uuid,
|
|
const std::string& packageName, int32_t userId, int32_t flags, int64_t ceDataInode) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
const char* pkgname = packageName.c_str();
|
|
|
|
binder::Status res = ok();
|
|
if (flags & FLAG_STORAGE_CE) {
|
|
auto path = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInode);
|
|
if (delete_dir_contents_and_dir(path) != 0) {
|
|
res = error("Failed to delete " + path);
|
|
}
|
|
}
|
|
if (flags & FLAG_STORAGE_DE) {
|
|
auto path = create_data_user_de_package_path(uuid_, userId, pkgname);
|
|
if (delete_dir_contents_and_dir(path) != 0) {
|
|
res = error("Failed to delete " + path);
|
|
}
|
|
if ((flags & FLAG_CLEAR_APP_DATA_KEEP_ART_PROFILES) == 0) {
|
|
destroy_app_current_profiles(packageName, userId);
|
|
// TODO(calin): If the package is still installed by other users it's probably
|
|
// beneficial to keep the reference profile around.
|
|
// Verify if it's ok to do that.
|
|
destroy_app_reference_profile(packageName);
|
|
}
|
|
}
|
|
if (flags & FLAG_STORAGE_EXTERNAL) {
|
|
std::lock_guard<std::recursive_mutex> lock(mMountsLock);
|
|
for (const auto& n : mStorageMounts) {
|
|
auto extPath = n.second;
|
|
|
|
if (android::base::GetBoolProperty(kFuseProp, false)) {
|
|
std::regex re("^\\/mnt\\/pass_through\\/[0-9]+\\/emulated");
|
|
if (std::regex_match(extPath, re)) {
|
|
extPath += "/" + std::to_string(userId);
|
|
}
|
|
} else {
|
|
if (n.first.compare(0, 14, "/mnt/media_rw/") != 0) {
|
|
extPath += StringPrintf("/%d", userId);
|
|
} else if (userId != 0) {
|
|
// TODO: support devices mounted under secondary users
|
|
continue;
|
|
}
|
|
}
|
|
|
|
auto path = StringPrintf("%s/Android/data/%s", extPath.c_str(), pkgname);
|
|
if (delete_dir_contents_and_dir(path, true) != 0) {
|
|
res = error("Failed to delete contents of " + path);
|
|
}
|
|
|
|
path = StringPrintf("%s/Android/media/%s", extPath.c_str(), pkgname);
|
|
if (delete_dir_contents_and_dir(path, true) != 0) {
|
|
res = error("Failed to delete contents of " + path);
|
|
}
|
|
path = StringPrintf("%s/Android/obb/%s", extPath.c_str(), pkgname);
|
|
if (delete_dir_contents_and_dir(path, true) != 0) {
|
|
res = error("Failed to delete contents of " + path);
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static gid_t get_cache_gid(uid_t uid) {
|
|
int32_t gid = multiuser_get_cache_gid(multiuser_get_user_id(uid), multiuser_get_app_id(uid));
|
|
return (gid != -1) ? gid : uid;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::fixupAppData(const std::optional<std::string>& uuid,
|
|
int32_t flags) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
for (auto user : get_known_users(uuid_)) {
|
|
ATRACE_BEGIN("fixup user");
|
|
FTS* fts;
|
|
FTSENT* p;
|
|
auto ce_path = create_data_user_ce_path(uuid_, user);
|
|
auto de_path = create_data_user_de_path(uuid_, user);
|
|
char *argv[] = { (char*) ce_path.c_str(), (char*) de_path.c_str(), nullptr };
|
|
if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, nullptr))) {
|
|
return error("Failed to fts_open");
|
|
}
|
|
while ((p = fts_read(fts)) != nullptr) {
|
|
if (p->fts_info == FTS_D && p->fts_level == 1) {
|
|
// Track down inodes of cache directories
|
|
uint64_t raw = 0;
|
|
ino_t inode_cache = 0;
|
|
ino_t inode_code_cache = 0;
|
|
if (getxattr(p->fts_path, kXattrInodeCache, &raw, sizeof(raw)) == sizeof(raw)) {
|
|
inode_cache = raw;
|
|
}
|
|
if (getxattr(p->fts_path, kXattrInodeCodeCache, &raw, sizeof(raw)) == sizeof(raw)) {
|
|
inode_code_cache = raw;
|
|
}
|
|
|
|
// Figure out expected GID of each child
|
|
FTSENT* child = fts_children(fts, 0);
|
|
while (child != nullptr) {
|
|
if ((child->fts_statp->st_ino == inode_cache)
|
|
|| (child->fts_statp->st_ino == inode_code_cache)
|
|
|| !strcmp(child->fts_name, "cache")
|
|
|| !strcmp(child->fts_name, "code_cache")) {
|
|
child->fts_number = get_cache_gid(p->fts_statp->st_uid);
|
|
} else {
|
|
child->fts_number = p->fts_statp->st_uid;
|
|
}
|
|
child = child->fts_link;
|
|
}
|
|
} else if (p->fts_level >= 2) {
|
|
if (p->fts_level > 2) {
|
|
// Inherit GID from parent once we're deeper into tree
|
|
p->fts_number = p->fts_parent->fts_number;
|
|
}
|
|
|
|
uid_t uid = p->fts_parent->fts_statp->st_uid;
|
|
gid_t cache_gid = get_cache_gid(uid);
|
|
gid_t expected = p->fts_number;
|
|
gid_t actual = p->fts_statp->st_gid;
|
|
if (actual == expected) {
|
|
#if FIXUP_DEBUG
|
|
LOG(DEBUG) << "Ignoring " << p->fts_path << " with expected GID " << expected;
|
|
#endif
|
|
if (!(flags & FLAG_FORCE)) {
|
|
fts_set(fts, p, FTS_SKIP);
|
|
}
|
|
} else if ((actual == uid) || (actual == cache_gid)) {
|
|
// Only consider fixing up when current GID belongs to app
|
|
if (p->fts_info != FTS_D) {
|
|
LOG(INFO) << "Fixing " << p->fts_path << " with unexpected GID " << actual
|
|
<< " instead of " << expected;
|
|
}
|
|
switch (p->fts_info) {
|
|
case FTS_DP:
|
|
// If we're moving towards cache GID, we need to set S_ISGID
|
|
if (expected == cache_gid) {
|
|
if (chmod(p->fts_path, 02771) != 0) {
|
|
PLOG(WARNING) << "Failed to chmod " << p->fts_path;
|
|
}
|
|
}
|
|
[[fallthrough]]; // also set GID
|
|
case FTS_F:
|
|
if (chown(p->fts_path, -1, expected) != 0) {
|
|
PLOG(WARNING) << "Failed to chown " << p->fts_path;
|
|
}
|
|
break;
|
|
case FTS_SL:
|
|
case FTS_SLNONE:
|
|
if (lchown(p->fts_path, -1, expected) != 0) {
|
|
PLOG(WARNING) << "Failed to chown " << p->fts_path;
|
|
}
|
|
break;
|
|
}
|
|
} else {
|
|
// Ignore all other GID transitions, since they're kinda shady
|
|
LOG(WARNING) << "Ignoring " << p->fts_path << " with unexpected GID " << actual
|
|
<< " instead of " << expected;
|
|
if (!(flags & FLAG_FORCE)) {
|
|
fts_set(fts, p, FTS_SKIP);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
fts_close(fts);
|
|
ATRACE_END();
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
static int32_t copy_directory_recursive(const char* from, const char* to) {
|
|
char *argv[] = {
|
|
(char*) kCpPath,
|
|
(char*) "-F", /* delete any existing destination file first (--remove-destination) */
|
|
(char*) "-p", /* preserve timestamps, ownership, and permissions */
|
|
(char*) "-R", /* recurse into subdirectories (DEST must be a directory) */
|
|
(char*) "-P", /* Do not follow symlinks [default] */
|
|
(char*) "-d", /* don't dereference symlinks */
|
|
(char*) from,
|
|
(char*) to
|
|
};
|
|
|
|
LOG(DEBUG) << "Copying " << from << " to " << to;
|
|
return logwrap_fork_execvp(ARRAY_SIZE(argv), argv, nullptr, false, LOG_ALOG, false, nullptr);
|
|
}
|
|
|
|
binder::Status InstalldNativeService::snapshotAppData(
|
|
const std::optional<std::string>& volumeUuid,
|
|
const std::string& packageName, int32_t user, int32_t snapshotId,
|
|
int32_t storageFlags, int64_t* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID_IS_TEST_OR_NULL(volumeUuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* volume_uuid = volumeUuid ? volumeUuid->c_str() : nullptr;
|
|
const char* package_name = packageName.c_str();
|
|
|
|
binder::Status res = ok();
|
|
// Default result to 0, it will be populated with inode of ce data snapshot
|
|
// if FLAG_STORAGE_CE has been passed.
|
|
if (_aidl_return != nullptr) *_aidl_return = 0;
|
|
|
|
bool clear_ce_on_exit = false;
|
|
bool clear_de_on_exit = false;
|
|
|
|
auto deleter = [&clear_ce_on_exit, &clear_de_on_exit, &volume_uuid, &user, &package_name,
|
|
&snapshotId] {
|
|
if (clear_de_on_exit) {
|
|
auto to = create_data_misc_de_rollback_package_path(volume_uuid, user, snapshotId,
|
|
package_name);
|
|
if (delete_dir_contents(to.c_str(), 1, nullptr) != 0) {
|
|
LOG(WARNING) << "Failed to delete app data snapshot: " << to;
|
|
}
|
|
}
|
|
|
|
if (clear_ce_on_exit) {
|
|
auto to = create_data_misc_ce_rollback_package_path(volume_uuid, user, snapshotId,
|
|
package_name);
|
|
if (delete_dir_contents(to.c_str(), 1, nullptr) != 0) {
|
|
LOG(WARNING) << "Failed to delete app data snapshot: " << to;
|
|
}
|
|
}
|
|
};
|
|
|
|
auto scope_guard = android::base::make_scope_guard(deleter);
|
|
|
|
if (storageFlags & FLAG_STORAGE_DE) {
|
|
auto from = create_data_user_de_package_path(volume_uuid, user, package_name);
|
|
auto to = create_data_misc_de_rollback_path(volume_uuid, user, snapshotId);
|
|
auto rollback_package_path = create_data_misc_de_rollback_package_path(volume_uuid, user,
|
|
snapshotId, package_name);
|
|
|
|
int rc = create_dir_if_needed(to.c_str(), kRollbackFolderMode);
|
|
if (rc != 0) {
|
|
return error(rc, "Failed to create folder " + to);
|
|
}
|
|
|
|
rc = delete_dir_contents(rollback_package_path, true /* ignore_if_missing */);
|
|
if (rc != 0) {
|
|
return error(rc, "Failed clearing existing snapshot " + rollback_package_path);
|
|
}
|
|
|
|
// Check if we have data to copy.
|
|
if (access(from.c_str(), F_OK) == 0) {
|
|
rc = copy_directory_recursive(from.c_str(), to.c_str());
|
|
}
|
|
if (rc != 0) {
|
|
res = error(rc, "Failed copying " + from + " to " + to);
|
|
clear_de_on_exit = true;
|
|
return res;
|
|
}
|
|
}
|
|
|
|
// The app may not have any data at all, in which case it's OK to skip here.
|
|
auto from_ce = create_data_user_ce_package_path(volume_uuid, user, package_name);
|
|
if (access(from_ce.c_str(), F_OK) != 0) {
|
|
LOG(INFO) << "Missing source " << from_ce;
|
|
return ok();
|
|
}
|
|
|
|
// ce_data_inode is not needed when FLAG_CLEAR_CACHE_ONLY is set.
|
|
binder::Status clear_cache_result = clearAppData(volumeUuid, packageName, user,
|
|
storageFlags | FLAG_CLEAR_CACHE_ONLY, 0);
|
|
if (!clear_cache_result.isOk()) {
|
|
// It should be fine to continue snapshot if we for some reason failed
|
|
// to clear cache.
|
|
LOG(WARNING) << "Failed to clear cache of app " << packageName;
|
|
}
|
|
|
|
// ce_data_inode is not needed when FLAG_CLEAR_CODE_CACHE_ONLY is set.
|
|
binder::Status clear_code_cache_result = clearAppData(volumeUuid, packageName, user,
|
|
storageFlags | FLAG_CLEAR_CODE_CACHE_ONLY, 0);
|
|
if (!clear_code_cache_result.isOk()) {
|
|
// It should be fine to continue snapshot if we for some reason failed
|
|
// to clear code_cache.
|
|
LOG(WARNING) << "Failed to clear code_cache of app " << packageName;
|
|
}
|
|
|
|
if (storageFlags & FLAG_STORAGE_CE) {
|
|
auto from = create_data_user_ce_package_path(volume_uuid, user, package_name);
|
|
auto to = create_data_misc_ce_rollback_path(volume_uuid, user, snapshotId);
|
|
auto rollback_package_path = create_data_misc_ce_rollback_package_path(volume_uuid, user,
|
|
snapshotId, package_name);
|
|
|
|
int rc = create_dir_if_needed(to.c_str(), kRollbackFolderMode);
|
|
if (rc != 0) {
|
|
return error(rc, "Failed to create folder " + to);
|
|
}
|
|
|
|
rc = delete_dir_contents(rollback_package_path, true /* ignore_if_missing */);
|
|
if (rc != 0) {
|
|
return error(rc, "Failed clearing existing snapshot " + rollback_package_path);
|
|
}
|
|
|
|
rc = copy_directory_recursive(from.c_str(), to.c_str());
|
|
if (rc != 0) {
|
|
res = error(rc, "Failed copying " + from + " to " + to);
|
|
clear_ce_on_exit = true;
|
|
return res;
|
|
}
|
|
if (_aidl_return != nullptr) {
|
|
auto ce_snapshot_path = create_data_misc_ce_rollback_package_path(volume_uuid, user,
|
|
snapshotId, package_name);
|
|
rc = get_path_inode(ce_snapshot_path, reinterpret_cast<ino_t*>(_aidl_return));
|
|
if (rc != 0) {
|
|
res = error(rc, "Failed to get_path_inode for " + ce_snapshot_path);
|
|
clear_ce_on_exit = true;
|
|
return res;
|
|
}
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::restoreAppDataSnapshot(
|
|
const std::optional<std::string>& volumeUuid, const std::string& packageName,
|
|
const int32_t appId, const std::string& seInfo, const int32_t user,
|
|
const int32_t snapshotId, int32_t storageFlags) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID_IS_TEST_OR_NULL(volumeUuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* volume_uuid = volumeUuid ? volumeUuid->c_str() : nullptr;
|
|
const char* package_name = packageName.c_str();
|
|
|
|
auto from_ce = create_data_misc_ce_rollback_package_path(volume_uuid,
|
|
user, snapshotId, package_name);
|
|
auto from_de = create_data_misc_de_rollback_package_path(volume_uuid,
|
|
user, snapshotId, package_name);
|
|
|
|
const bool needs_ce_rollback = (storageFlags & FLAG_STORAGE_CE) &&
|
|
(access(from_ce.c_str(), F_OK) == 0);
|
|
const bool needs_de_rollback = (storageFlags & FLAG_STORAGE_DE) &&
|
|
(access(from_de.c_str(), F_OK) == 0);
|
|
|
|
if (!needs_ce_rollback && !needs_de_rollback) {
|
|
return ok();
|
|
}
|
|
|
|
// We know we're going to rollback one of the CE or DE data, so we clear
|
|
// application data first. Note that it's possible that we're asked to
|
|
// restore both CE & DE data but that one of the restores fail. Leaving the
|
|
// app with no data in those cases is arguably better than leaving the app
|
|
// with mismatched / stale data.
|
|
LOG(INFO) << "Clearing app data for " << packageName << " to restore snapshot.";
|
|
// It's fine to pass 0 as ceDataInode here, because restoreAppDataSnapshot
|
|
// can only be called when user unlocks the phone, meaning that CE user data
|
|
// is decrypted.
|
|
binder::Status res = clearAppData(volumeUuid, packageName, user, storageFlags,
|
|
0 /* ceDataInode */);
|
|
if (!res.isOk()) {
|
|
return res;
|
|
}
|
|
|
|
if (needs_ce_rollback) {
|
|
auto to_ce = create_data_user_ce_path(volume_uuid, user);
|
|
int rc = copy_directory_recursive(from_ce.c_str(), to_ce.c_str());
|
|
if (rc != 0) {
|
|
res = error(rc, "Failed copying " + from_ce + " to " + to_ce);
|
|
return res;
|
|
}
|
|
delete_dir_contents_and_dir(from_ce, true /* ignore_if_missing */);
|
|
}
|
|
|
|
if (needs_de_rollback) {
|
|
auto to_de = create_data_user_de_path(volume_uuid, user);
|
|
int rc = copy_directory_recursive(from_de.c_str(), to_de.c_str());
|
|
if (rc != 0) {
|
|
if (needs_ce_rollback) {
|
|
auto ce_data = create_data_user_ce_package_path(volume_uuid, user, package_name);
|
|
LOG(WARNING) << "de_data rollback failed. Erasing rolled back ce_data " << ce_data;
|
|
if (delete_dir_contents(ce_data.c_str(), 1, nullptr) != 0) {
|
|
LOG(WARNING) << "Failed to delete rolled back ce_data " << ce_data;
|
|
}
|
|
}
|
|
res = error(rc, "Failed copying " + from_de + " to " + to_de);
|
|
return res;
|
|
}
|
|
delete_dir_contents_and_dir(from_de, true /* ignore_if_missing */);
|
|
}
|
|
|
|
// Finally, restore the SELinux label on the app data.
|
|
return restoreconAppData(volumeUuid, packageName, user, storageFlags, appId, seInfo);
|
|
}
|
|
|
|
binder::Status InstalldNativeService::destroyAppDataSnapshot(
|
|
const std::optional<std::string> &volumeUuid, const std::string& packageName,
|
|
const int32_t user, const int64_t ceSnapshotInode, const int32_t snapshotId,
|
|
int32_t storageFlags) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID_IS_TEST_OR_NULL(volumeUuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* volume_uuid = volumeUuid ? volumeUuid->c_str() : nullptr;
|
|
const char* package_name = packageName.c_str();
|
|
|
|
if (storageFlags & FLAG_STORAGE_DE) {
|
|
auto de_snapshot_path = create_data_misc_de_rollback_package_path(volume_uuid,
|
|
user, snapshotId, package_name);
|
|
|
|
int res = delete_dir_contents_and_dir(de_snapshot_path, true /* ignore_if_missing */);
|
|
if (res != 0) {
|
|
return error(res, "Failed clearing snapshot " + de_snapshot_path);
|
|
}
|
|
}
|
|
|
|
if (storageFlags & FLAG_STORAGE_CE) {
|
|
auto ce_snapshot_path = create_data_misc_ce_rollback_package_path(volume_uuid,
|
|
user, snapshotId, package_name, ceSnapshotInode);
|
|
int res = delete_dir_contents_and_dir(ce_snapshot_path, true /* ignore_if_missing */);
|
|
if (res != 0) {
|
|
return error(res, "Failed clearing snapshot " + ce_snapshot_path);
|
|
}
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::destroyCeSnapshotsNotSpecified(
|
|
const std::optional<std::string> &volumeUuid, const int32_t user,
|
|
const std::vector<int32_t>& retainSnapshotIds) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID_IS_TEST_OR_NULL(volumeUuid);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* volume_uuid = volumeUuid ? volumeUuid->c_str() : nullptr;
|
|
|
|
auto base_path = create_data_misc_ce_rollback_base_path(volume_uuid, user);
|
|
|
|
std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(base_path.c_str()), closedir);
|
|
if (!dir) {
|
|
return error(-1, "Failed to open rollback base dir " + base_path);
|
|
}
|
|
|
|
struct dirent* ent;
|
|
while ((ent = readdir(dir.get()))) {
|
|
if (ent->d_type != DT_DIR) {
|
|
continue;
|
|
}
|
|
|
|
uint snapshot_id;
|
|
bool parse_ok = ParseUint(ent->d_name, &snapshot_id);
|
|
if (parse_ok &&
|
|
std::find(retainSnapshotIds.begin(), retainSnapshotIds.end(),
|
|
snapshot_id) == retainSnapshotIds.end()) {
|
|
auto rollback_path = create_data_misc_ce_rollback_path(
|
|
volume_uuid, user, snapshot_id);
|
|
int res = delete_dir_contents_and_dir(rollback_path, true /* ignore_if_missing */);
|
|
if (res != 0) {
|
|
return error(res, "Failed clearing snapshot " + rollback_path);
|
|
}
|
|
}
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::moveCompleteApp(const std::optional<std::string>& fromUuid,
|
|
const std::optional<std::string>& toUuid, const std::string& packageName,
|
|
int32_t appId, const std::string& seInfo,
|
|
int32_t targetSdkVersion, const std::string& fromCodePath) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(fromUuid);
|
|
CHECK_ARGUMENT_UUID(toUuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* from_uuid = fromUuid ? fromUuid->c_str() : nullptr;
|
|
const char* to_uuid = toUuid ? toUuid->c_str() : nullptr;
|
|
const char* package_name = packageName.c_str();
|
|
|
|
binder::Status res = ok();
|
|
std::vector<userid_t> users = get_known_users(from_uuid);
|
|
|
|
auto to_app_package_path_parent = create_data_app_path(to_uuid);
|
|
auto to_app_package_path = StringPrintf("%s/%s", to_app_package_path_parent.c_str(),
|
|
android::base::Basename(fromCodePath).c_str());
|
|
|
|
// Copy app
|
|
{
|
|
int rc = copy_directory_recursive(fromCodePath.c_str(), to_app_package_path_parent.c_str());
|
|
if (rc != 0) {
|
|
res = error(rc, "Failed copying " + fromCodePath + " to " + to_app_package_path);
|
|
goto fail;
|
|
}
|
|
|
|
if (selinux_android_restorecon(to_app_package_path.c_str(), SELINUX_ANDROID_RESTORECON_RECURSE) != 0) {
|
|
res = error("Failed to restorecon " + to_app_package_path);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
// Copy private data for all known users
|
|
for (auto user : users) {
|
|
|
|
// Data source may not exist for all users; that's okay
|
|
auto from_ce = create_data_user_ce_package_path(from_uuid, user, package_name);
|
|
if (access(from_ce.c_str(), F_OK) != 0) {
|
|
LOG(INFO) << "Missing source " << from_ce;
|
|
continue;
|
|
}
|
|
|
|
if (!createAppData(toUuid, packageName, user, FLAG_STORAGE_CE | FLAG_STORAGE_DE, appId,
|
|
seInfo, targetSdkVersion, nullptr).isOk()) {
|
|
res = error("Failed to create package target");
|
|
goto fail;
|
|
}
|
|
|
|
{
|
|
auto from = create_data_user_de_package_path(from_uuid, user, package_name);
|
|
auto to = create_data_user_de_path(to_uuid, user);
|
|
|
|
int rc = copy_directory_recursive(from.c_str(), to.c_str());
|
|
if (rc != 0) {
|
|
res = error(rc, "Failed copying " + from + " to " + to);
|
|
goto fail;
|
|
}
|
|
}
|
|
{
|
|
auto from = create_data_user_ce_package_path(from_uuid, user, package_name);
|
|
auto to = create_data_user_ce_path(to_uuid, user);
|
|
|
|
int rc = copy_directory_recursive(from.c_str(), to.c_str());
|
|
if (rc != 0) {
|
|
res = error(rc, "Failed copying " + from + " to " + to);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (!restoreconAppData(toUuid, packageName, user, FLAG_STORAGE_CE | FLAG_STORAGE_DE,
|
|
appId, seInfo).isOk()) {
|
|
res = error("Failed to restorecon");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
// We let the framework scan the new location and persist that before
|
|
// deleting the data in the old location; this ordering ensures that
|
|
// we can recover from things like battery pulls.
|
|
return ok();
|
|
|
|
fail:
|
|
// Nuke everything we might have already copied
|
|
{
|
|
if (delete_dir_contents(to_app_package_path.c_str(), 1, nullptr) != 0) {
|
|
LOG(WARNING) << "Failed to rollback " << to_app_package_path;
|
|
}
|
|
}
|
|
for (auto user : users) {
|
|
{
|
|
auto to = create_data_user_de_package_path(to_uuid, user, package_name);
|
|
if (delete_dir_contents(to.c_str(), 1, nullptr) != 0) {
|
|
LOG(WARNING) << "Failed to rollback " << to;
|
|
}
|
|
}
|
|
{
|
|
auto to = create_data_user_ce_package_path(to_uuid, user, package_name);
|
|
if (delete_dir_contents(to.c_str(), 1, nullptr) != 0) {
|
|
LOG(WARNING) << "Failed to rollback " << to;
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::createUserData(const std::optional<std::string>& uuid,
|
|
int32_t userId, int32_t userSerial ATTRIBUTE_UNUSED, int32_t flags) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
if (flags & FLAG_STORAGE_DE) {
|
|
if (uuid_ == nullptr) {
|
|
if (ensure_config_user_dirs(userId) != 0) {
|
|
return error(StringPrintf("Failed to ensure dirs for %d", userId));
|
|
}
|
|
}
|
|
}
|
|
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::destroyUserData(const std::optional<std::string>& uuid,
|
|
int32_t userId, int32_t flags) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
binder::Status res = ok();
|
|
if (flags & FLAG_STORAGE_DE) {
|
|
auto path = create_data_user_de_path(uuid_, userId);
|
|
if (delete_dir_contents_and_dir(path, true) != 0) {
|
|
res = error("Failed to delete " + path);
|
|
}
|
|
if (uuid_ == nullptr) {
|
|
path = create_data_misc_legacy_path(userId);
|
|
if (delete_dir_contents_and_dir(path, true) != 0) {
|
|
res = error("Failed to delete " + path);
|
|
}
|
|
path = create_primary_cur_profile_dir_path(userId);
|
|
if (delete_dir_contents_and_dir(path, true) != 0) {
|
|
res = error("Failed to delete " + path);
|
|
}
|
|
}
|
|
}
|
|
if (flags & FLAG_STORAGE_CE) {
|
|
auto path = create_data_user_ce_path(uuid_, userId);
|
|
if (delete_dir_contents_and_dir(path, true) != 0) {
|
|
res = error("Failed to delete " + path);
|
|
}
|
|
path = findDataMediaPath(uuid, userId);
|
|
if (delete_dir_contents_and_dir(path, true) != 0) {
|
|
res = error("Failed to delete " + path);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::freeCache(const std::optional<std::string>& uuid,
|
|
int64_t targetFreeBytes, int64_t cacheReservedBytes, int32_t flags) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
auto uuidString = uuid.value_or("");
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
auto data_path = create_data_path(uuid_);
|
|
auto noop = (flags & FLAG_FREE_CACHE_NOOP);
|
|
|
|
int64_t free = data_disk_free(data_path);
|
|
if (free < 0) {
|
|
return error("Failed to determine free space for " + data_path);
|
|
}
|
|
|
|
int64_t cleared = 0;
|
|
int64_t needed = targetFreeBytes - free;
|
|
LOG(DEBUG) << "Device " << data_path << " has " << free << " free; requested "
|
|
<< targetFreeBytes << "; needed " << needed;
|
|
|
|
if (free >= targetFreeBytes) {
|
|
return ok();
|
|
}
|
|
|
|
if (flags & FLAG_FREE_CACHE_V2) {
|
|
// This new cache strategy fairly removes files from UIDs by deleting
|
|
// files from the UIDs which are most over their allocated quota
|
|
|
|
// 1. Create trackers for every known UID
|
|
ATRACE_BEGIN("create");
|
|
std::unordered_map<uid_t, std::shared_ptr<CacheTracker>> trackers;
|
|
for (auto user : get_known_users(uuid_)) {
|
|
FTS *fts;
|
|
FTSENT *p;
|
|
auto ce_path = create_data_user_ce_path(uuid_, user);
|
|
auto de_path = create_data_user_de_path(uuid_, user);
|
|
auto media_path = findDataMediaPath(uuid, user) + "/Android/data/";
|
|
char *argv[] = { (char*) ce_path.c_str(), (char*) de_path.c_str(),
|
|
(char*) media_path.c_str(), nullptr };
|
|
if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, nullptr))) {
|
|
return error("Failed to fts_open");
|
|
}
|
|
while ((p = fts_read(fts)) != nullptr) {
|
|
if (p->fts_info == FTS_D && p->fts_level == 1) {
|
|
uid_t uid = p->fts_statp->st_uid;
|
|
if (multiuser_get_app_id(uid) == AID_MEDIA_RW) {
|
|
uid = (multiuser_get_app_id(p->fts_statp->st_gid) - AID_EXT_GID_START)
|
|
+ AID_APP_START;
|
|
}
|
|
auto search = trackers.find(uid);
|
|
if (search != trackers.end()) {
|
|
search->second->addDataPath(p->fts_path);
|
|
} else {
|
|
auto tracker = std::shared_ptr<CacheTracker>(new CacheTracker(
|
|
multiuser_get_user_id(uid), multiuser_get_app_id(uid), uuidString));
|
|
tracker->addDataPath(p->fts_path);
|
|
{
|
|
std::lock_guard<std::recursive_mutex> lock(mQuotasLock);
|
|
tracker->cacheQuota = mCacheQuotas[uid];
|
|
}
|
|
if (tracker->cacheQuota == 0) {
|
|
#if MEASURE_DEBUG
|
|
LOG(WARNING) << "UID " << uid << " has no cache quota; assuming 64MB";
|
|
#endif
|
|
tracker->cacheQuota = 67108864;
|
|
}
|
|
trackers[uid] = tracker;
|
|
}
|
|
fts_set(fts, p, FTS_SKIP);
|
|
}
|
|
}
|
|
fts_close(fts);
|
|
}
|
|
ATRACE_END();
|
|
|
|
// 2. Populate tracker stats and insert into priority queue
|
|
ATRACE_BEGIN("populate");
|
|
int64_t cacheTotal = 0;
|
|
auto cmp = [](std::shared_ptr<CacheTracker> left, std::shared_ptr<CacheTracker> right) {
|
|
return (left->getCacheRatio() < right->getCacheRatio());
|
|
};
|
|
std::priority_queue<std::shared_ptr<CacheTracker>,
|
|
std::vector<std::shared_ptr<CacheTracker>>, decltype(cmp)> queue(cmp);
|
|
for (const auto& it : trackers) {
|
|
it.second->loadStats();
|
|
queue.push(it.second);
|
|
cacheTotal += it.second->cacheUsed;
|
|
}
|
|
ATRACE_END();
|
|
|
|
// 3. Bounce across the queue, freeing items from whichever tracker is
|
|
// the most over their assigned quota
|
|
ATRACE_BEGIN("bounce");
|
|
std::shared_ptr<CacheTracker> active;
|
|
while (active || !queue.empty()) {
|
|
// Only look at apps under quota when explicitly requested
|
|
if (active && (active->getCacheRatio() < 10000)
|
|
&& !(flags & FLAG_FREE_CACHE_V2_DEFY_QUOTA)) {
|
|
LOG(DEBUG) << "Active ratio " << active->getCacheRatio()
|
|
<< " isn't over quota, and defy not requested";
|
|
break;
|
|
}
|
|
|
|
// Only keep clearing when we haven't pushed into reserved area
|
|
if (cacheReservedBytes > 0 && cleared >= (cacheTotal - cacheReservedBytes)) {
|
|
LOG(DEBUG) << "Refusing to clear cached data in reserved space";
|
|
break;
|
|
}
|
|
|
|
// Find the best tracker to work with; this might involve swapping
|
|
// if the active tracker is no longer the most over quota
|
|
bool nextBetter = active && !queue.empty()
|
|
&& active->getCacheRatio() < queue.top()->getCacheRatio();
|
|
if (!active || nextBetter) {
|
|
if (active) {
|
|
// Current tracker still has items, so we'll consider it
|
|
// again later once it bubbles up to surface
|
|
queue.push(active);
|
|
}
|
|
active = queue.top(); queue.pop();
|
|
active->ensureItems();
|
|
continue;
|
|
}
|
|
|
|
// If no items remain, go find another tracker
|
|
if (active->items.empty()) {
|
|
active = nullptr;
|
|
continue;
|
|
} else {
|
|
auto item = active->items.back();
|
|
active->items.pop_back();
|
|
|
|
LOG(DEBUG) << "Purging " << item->toString() << " from " << active->toString();
|
|
if (!noop) {
|
|
item->purge();
|
|
}
|
|
active->cacheUsed -= item->size;
|
|
needed -= item->size;
|
|
cleared += item->size;
|
|
}
|
|
|
|
// Verify that we're actually done before bailing, since sneaky
|
|
// apps might be using hardlinks
|
|
if (needed <= 0) {
|
|
free = data_disk_free(data_path);
|
|
needed = targetFreeBytes - free;
|
|
if (needed <= 0) {
|
|
break;
|
|
} else {
|
|
LOG(WARNING) << "Expected to be done but still need " << needed;
|
|
}
|
|
}
|
|
}
|
|
ATRACE_END();
|
|
|
|
} else {
|
|
return error("Legacy cache logic no longer supported");
|
|
}
|
|
|
|
free = data_disk_free(data_path);
|
|
if (free >= targetFreeBytes) {
|
|
return ok();
|
|
} else {
|
|
return error(StringPrintf("Failed to free up %" PRId64 " on %s; final free space %" PRId64,
|
|
targetFreeBytes, data_path.c_str(), free));
|
|
}
|
|
}
|
|
|
|
binder::Status InstalldNativeService::rmdex(const std::string& codePath,
|
|
const std::string& instructionSet) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PATH(codePath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
char dex_path[PKG_PATH_MAX];
|
|
|
|
const char* path = codePath.c_str();
|
|
const char* instruction_set = instructionSet.c_str();
|
|
|
|
if (validate_apk_path(path) && validate_system_app_path(path)) {
|
|
return error("Invalid path " + codePath);
|
|
}
|
|
|
|
if (!create_cache_path(dex_path, path, instruction_set)) {
|
|
return error("Failed to create cache path for " + codePath);
|
|
}
|
|
|
|
ALOGV("unlink %s\n", dex_path);
|
|
if (unlink(dex_path) < 0) {
|
|
// It's ok if we don't have a dalvik cache path. Report error only when the path exists
|
|
// but could not be unlinked.
|
|
if (errno != ENOENT) {
|
|
return error(StringPrintf("Failed to unlink %s", dex_path));
|
|
}
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
struct stats {
|
|
int64_t codeSize;
|
|
int64_t dataSize;
|
|
int64_t cacheSize;
|
|
};
|
|
|
|
#if MEASURE_DEBUG
|
|
static std::string toString(std::vector<int64_t> values) {
|
|
std::stringstream res;
|
|
res << "[";
|
|
for (size_t i = 0; i < values.size(); i++) {
|
|
res << values[i];
|
|
if (i < values.size() - 1) {
|
|
res << ",";
|
|
}
|
|
}
|
|
res << "]";
|
|
return res.str();
|
|
}
|
|
#endif
|
|
|
|
static void collectQuotaStats(const std::string& uuid, int32_t userId,
|
|
int32_t appId, struct stats* stats, struct stats* extStats) {
|
|
int64_t space;
|
|
uid_t uid = multiuser_get_uid(userId, appId);
|
|
if (stats != nullptr) {
|
|
if ((space = GetOccupiedSpaceForUid(uuid, uid)) != -1) {
|
|
stats->dataSize += space;
|
|
}
|
|
|
|
int cacheGid = multiuser_get_cache_gid(userId, appId);
|
|
if (cacheGid != -1) {
|
|
if ((space = GetOccupiedSpaceForGid(uuid, cacheGid)) != -1) {
|
|
stats->cacheSize += space;
|
|
}
|
|
}
|
|
|
|
int sharedGid = multiuser_get_shared_gid(0, appId);
|
|
if (sharedGid != -1) {
|
|
if ((space = GetOccupiedSpaceForGid(uuid, sharedGid)) != -1) {
|
|
stats->codeSize += space;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (extStats != nullptr) {
|
|
static const bool supportsSdCardFs = supports_sdcardfs();
|
|
space = get_occupied_app_space_external(uuid, userId, appId);
|
|
|
|
if (space != -1) {
|
|
extStats->dataSize += space;
|
|
if (!supportsSdCardFs && stats != nullptr) {
|
|
// On devices without sdcardfs, if internal and external are on
|
|
// the same volume, a uid such as u0_a123 is used for
|
|
// application dirs on both internal and external storage;
|
|
// therefore, substract that amount from internal to make sure
|
|
// we don't count it double.
|
|
stats->dataSize -= space;
|
|
}
|
|
}
|
|
|
|
space = get_occupied_app_cache_space_external(uuid, userId, appId);
|
|
if (space != -1) {
|
|
extStats->dataSize += space; // cache counts for "data"
|
|
extStats->cacheSize += space;
|
|
if (!supportsSdCardFs && stats != nullptr) {
|
|
// On devices without sdcardfs, if internal and external are on
|
|
// the same volume, a uid such as u0_a123 is used for both
|
|
// internal and external storage; therefore, substract that
|
|
// amount from internal to make sure we don't count it double.
|
|
stats->dataSize -= space;
|
|
}
|
|
}
|
|
|
|
if (!supportsSdCardFs && stats != nullptr) {
|
|
// On devices without sdcardfs, the UID of OBBs on external storage
|
|
// matches the regular app UID (eg u0_a123); therefore, to avoid
|
|
// OBBs being include in stats->dataSize, compute the OBB size for
|
|
// this app, and substract it from the size reported on internal
|
|
// storage
|
|
long obbProjectId = uid - AID_APP_START + PROJECT_ID_EXT_OBB_START;
|
|
int64_t appObbSize = GetOccupiedSpaceForProjectId(uuid, obbProjectId);
|
|
stats->dataSize -= appObbSize;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void collectManualStats(const std::string& path, struct stats* stats) {
|
|
DIR *d;
|
|
int dfd;
|
|
struct dirent *de;
|
|
struct stat s;
|
|
|
|
d = opendir(path.c_str());
|
|
if (d == nullptr) {
|
|
if (errno != ENOENT) {
|
|
PLOG(WARNING) << "Failed to open " << path;
|
|
}
|
|
return;
|
|
}
|
|
dfd = dirfd(d);
|
|
while ((de = readdir(d))) {
|
|
const char *name = de->d_name;
|
|
|
|
int64_t size = 0;
|
|
if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
|
|
size = s.st_blocks * 512;
|
|
}
|
|
|
|
if (de->d_type == DT_DIR) {
|
|
if (!strcmp(name, ".")) {
|
|
// Don't recurse, but still count node size
|
|
} else if (!strcmp(name, "..")) {
|
|
// Don't recurse or count node size
|
|
continue;
|
|
} else {
|
|
// Measure all children nodes
|
|
size = 0;
|
|
calculate_tree_size(StringPrintf("%s/%s", path.c_str(), name), &size);
|
|
}
|
|
|
|
if (!strcmp(name, "cache") || !strcmp(name, "code_cache")) {
|
|
stats->cacheSize += size;
|
|
}
|
|
}
|
|
|
|
// Legacy symlink isn't owned by app
|
|
if (de->d_type == DT_LNK && !strcmp(name, "lib")) {
|
|
continue;
|
|
}
|
|
|
|
// Everything found inside is considered data
|
|
stats->dataSize += size;
|
|
}
|
|
closedir(d);
|
|
}
|
|
|
|
static void collectManualStatsForUser(const std::string& path, struct stats* stats,
|
|
bool exclude_apps = false) {
|
|
DIR *d;
|
|
int dfd;
|
|
struct dirent *de;
|
|
struct stat s;
|
|
|
|
d = opendir(path.c_str());
|
|
if (d == nullptr) {
|
|
if (errno != ENOENT) {
|
|
PLOG(WARNING) << "Failed to open " << path;
|
|
}
|
|
return;
|
|
}
|
|
dfd = dirfd(d);
|
|
while ((de = readdir(d))) {
|
|
if (de->d_type == DT_DIR) {
|
|
const char *name = de->d_name;
|
|
if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) != 0) {
|
|
continue;
|
|
}
|
|
int32_t user_uid = multiuser_get_app_id(s.st_uid);
|
|
if (!strcmp(name, ".") || !strcmp(name, "..")) {
|
|
continue;
|
|
} else if (exclude_apps && (user_uid >= AID_APP_START && user_uid <= AID_APP_END)) {
|
|
continue;
|
|
} else {
|
|
collectManualStats(StringPrintf("%s/%s", path.c_str(), name), stats);
|
|
}
|
|
}
|
|
}
|
|
closedir(d);
|
|
}
|
|
|
|
static void collectManualExternalStatsForUser(const std::string& path, struct stats* stats) {
|
|
FTS *fts;
|
|
FTSENT *p;
|
|
char *argv[] = { (char*) path.c_str(), nullptr };
|
|
if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, nullptr))) {
|
|
PLOG(ERROR) << "Failed to fts_open " << path;
|
|
return;
|
|
}
|
|
while ((p = fts_read(fts)) != nullptr) {
|
|
p->fts_number = p->fts_parent->fts_number;
|
|
switch (p->fts_info) {
|
|
case FTS_D:
|
|
if (p->fts_level == 4
|
|
&& !strcmp(p->fts_name, "cache")
|
|
&& !strcmp(p->fts_parent->fts_parent->fts_name, "data")
|
|
&& !strcmp(p->fts_parent->fts_parent->fts_parent->fts_name, "Android")) {
|
|
p->fts_number = 1;
|
|
}
|
|
[[fallthrough]]; // to count the directory
|
|
case FTS_DEFAULT:
|
|
case FTS_F:
|
|
case FTS_SL:
|
|
case FTS_SLNONE:
|
|
int64_t size = (p->fts_statp->st_blocks * 512);
|
|
if (p->fts_number == 1) {
|
|
stats->cacheSize += size;
|
|
}
|
|
stats->dataSize += size;
|
|
break;
|
|
}
|
|
}
|
|
fts_close(fts);
|
|
}
|
|
|
|
binder::Status InstalldNativeService::getAppSize(const std::optional<std::string>& uuid,
|
|
const std::vector<std::string>& packageNames, int32_t userId, int32_t flags,
|
|
int32_t appId, const std::vector<int64_t>& ceDataInodes,
|
|
const std::vector<std::string>& codePaths, std::vector<int64_t>* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
if (packageNames.size() != ceDataInodes.size()) {
|
|
return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
|
|
"packageNames/ceDataInodes size mismatch.");
|
|
}
|
|
for (const auto& packageName : packageNames) {
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
}
|
|
for (const auto& codePath : codePaths) {
|
|
CHECK_ARGUMENT_PATH(codePath);
|
|
}
|
|
// NOTE: Locking is relaxed on this method, since it's limited to
|
|
// read-only measurements without mutation.
|
|
|
|
// When modifying this logic, always verify using tests:
|
|
// runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetAppSize
|
|
|
|
#if MEASURE_DEBUG
|
|
LOG(INFO) << "Measuring user " << userId << " app " << appId;
|
|
#endif
|
|
|
|
// Here's a summary of the common storage locations across the platform,
|
|
// and how they're each tagged:
|
|
//
|
|
// /data/app/com.example UID system
|
|
// /data/app/com.example/oat UID system
|
|
// /data/user/0/com.example UID u0_a10 GID u0_a10
|
|
// /data/user/0/com.example/cache UID u0_a10 GID u0_a10_cache
|
|
// /data/media/0/foo.txt UID u0_media_rw
|
|
// /data/media/0/bar.jpg UID u0_media_rw GID u0_media_image
|
|
// /data/media/0/Android/data/com.example UID u0_media_rw GID u0_a10_ext
|
|
// /data/media/0/Android/data/com.example/cache UID u0_media_rw GID u0_a10_ext_cache
|
|
// /data/media/obb/com.example UID system
|
|
|
|
struct stats stats;
|
|
struct stats extStats;
|
|
memset(&stats, 0, sizeof(stats));
|
|
memset(&extStats, 0, sizeof(extStats));
|
|
|
|
auto uuidString = uuid.value_or("");
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
|
|
if (!IsQuotaSupported(uuidString)) {
|
|
flags &= ~FLAG_USE_QUOTA;
|
|
}
|
|
|
|
ATRACE_BEGIN("obb");
|
|
for (const auto& packageName : packageNames) {
|
|
auto obbCodePath = create_data_media_package_path(uuid_, userId,
|
|
"obb", packageName.c_str());
|
|
calculate_tree_size(obbCodePath, &extStats.codeSize);
|
|
}
|
|
ATRACE_END();
|
|
|
|
if (flags & FLAG_USE_QUOTA && appId >= AID_APP_START) {
|
|
ATRACE_BEGIN("code");
|
|
for (const auto& codePath : codePaths) {
|
|
calculate_tree_size(codePath, &stats.codeSize, -1,
|
|
multiuser_get_shared_gid(0, appId));
|
|
}
|
|
ATRACE_END();
|
|
|
|
ATRACE_BEGIN("quota");
|
|
collectQuotaStats(uuidString, userId, appId, &stats, &extStats);
|
|
ATRACE_END();
|
|
} else {
|
|
ATRACE_BEGIN("code");
|
|
for (const auto& codePath : codePaths) {
|
|
calculate_tree_size(codePath, &stats.codeSize);
|
|
}
|
|
ATRACE_END();
|
|
|
|
for (size_t i = 0; i < packageNames.size(); i++) {
|
|
const char* pkgname = packageNames[i].c_str();
|
|
|
|
ATRACE_BEGIN("data");
|
|
auto cePath = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInodes[i]);
|
|
collectManualStats(cePath, &stats);
|
|
auto dePath = create_data_user_de_package_path(uuid_, userId, pkgname);
|
|
collectManualStats(dePath, &stats);
|
|
ATRACE_END();
|
|
|
|
if (!uuid) {
|
|
ATRACE_BEGIN("profiles");
|
|
calculate_tree_size(
|
|
create_primary_current_profile_package_dir_path(userId, pkgname),
|
|
&stats.dataSize);
|
|
calculate_tree_size(
|
|
create_primary_reference_profile_package_dir_path(pkgname),
|
|
&stats.codeSize);
|
|
ATRACE_END();
|
|
}
|
|
|
|
ATRACE_BEGIN("external");
|
|
auto extPath = create_data_media_package_path(uuid_, userId, "data", pkgname);
|
|
collectManualStats(extPath, &extStats);
|
|
auto mediaPath = create_data_media_package_path(uuid_, userId, "media", pkgname);
|
|
calculate_tree_size(mediaPath, &extStats.dataSize);
|
|
ATRACE_END();
|
|
}
|
|
|
|
if (!uuid) {
|
|
ATRACE_BEGIN("dalvik");
|
|
int32_t sharedGid = multiuser_get_shared_gid(0, appId);
|
|
if (sharedGid != -1) {
|
|
calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize,
|
|
sharedGid, -1);
|
|
}
|
|
ATRACE_END();
|
|
}
|
|
}
|
|
|
|
std::vector<int64_t> ret;
|
|
ret.push_back(stats.codeSize);
|
|
ret.push_back(stats.dataSize);
|
|
ret.push_back(stats.cacheSize);
|
|
ret.push_back(extStats.codeSize);
|
|
ret.push_back(extStats.dataSize);
|
|
ret.push_back(extStats.cacheSize);
|
|
#if MEASURE_DEBUG
|
|
LOG(DEBUG) << "Final result " << toString(ret);
|
|
#endif
|
|
*_aidl_return = ret;
|
|
return ok();
|
|
}
|
|
|
|
struct external_sizes {
|
|
int64_t audioSize;
|
|
int64_t videoSize;
|
|
int64_t imageSize;
|
|
int64_t totalSize; // excludes OBBs (Android/obb), but includes app data + cache
|
|
int64_t obbSize;
|
|
};
|
|
|
|
#define PER_USER_RANGE 100000
|
|
|
|
static long getProjectIdForUser(int userId, long projectId) {
|
|
return userId * PER_USER_RANGE + projectId;
|
|
}
|
|
|
|
static external_sizes getExternalSizesForUserWithQuota(const std::string& uuid, int32_t userId, const std::vector<int32_t>& appIds) {
|
|
struct external_sizes sizes = {};
|
|
int64_t space;
|
|
|
|
if (supports_sdcardfs()) {
|
|
uid_t uid = multiuser_get_uid(userId, AID_MEDIA_RW);
|
|
if ((space = GetOccupiedSpaceForUid(uuid, uid)) != -1) {
|
|
sizes.totalSize = space;
|
|
}
|
|
|
|
gid_t audioGid = multiuser_get_uid(userId, AID_MEDIA_AUDIO);
|
|
if ((space = GetOccupiedSpaceForGid(uuid, audioGid)) != -1) {
|
|
sizes.audioSize = space;
|
|
}
|
|
|
|
gid_t videoGid = multiuser_get_uid(userId, AID_MEDIA_VIDEO);
|
|
if ((space = GetOccupiedSpaceForGid(uuid, videoGid)) != -1) {
|
|
sizes.videoSize = space;
|
|
}
|
|
|
|
gid_t imageGid = multiuser_get_uid(userId, AID_MEDIA_IMAGE);
|
|
if ((space = GetOccupiedSpaceForGid(uuid, imageGid)) != -1) {
|
|
sizes.imageSize = space;
|
|
}
|
|
|
|
if ((space = GetOccupiedSpaceForGid(uuid, AID_MEDIA_OBB)) != -1) {
|
|
sizes.obbSize = space;
|
|
}
|
|
} else {
|
|
int64_t totalSize = 0;
|
|
long defaultProjectId = getProjectIdForUser(userId, PROJECT_ID_EXT_DEFAULT);
|
|
if ((space = GetOccupiedSpaceForProjectId(uuid, defaultProjectId)) != -1) {
|
|
// This is all files that are not audio/video/images, excluding
|
|
// OBBs and app-private data
|
|
totalSize += space;
|
|
}
|
|
|
|
long audioProjectId = getProjectIdForUser(userId, PROJECT_ID_EXT_MEDIA_AUDIO);
|
|
if ((space = GetOccupiedSpaceForProjectId(uuid, audioProjectId)) != -1) {
|
|
sizes.audioSize = space;
|
|
totalSize += space;
|
|
}
|
|
|
|
long videoProjectId = getProjectIdForUser(userId, PROJECT_ID_EXT_MEDIA_VIDEO);
|
|
if ((space = GetOccupiedSpaceForProjectId(uuid, videoProjectId)) != -1) {
|
|
sizes.videoSize = space;
|
|
totalSize += space;
|
|
}
|
|
|
|
long imageProjectId = getProjectIdForUser(userId, PROJECT_ID_EXT_MEDIA_IMAGE);
|
|
if ((space = GetOccupiedSpaceForProjectId(uuid, imageProjectId)) != -1) {
|
|
sizes.imageSize = space;
|
|
totalSize += space;
|
|
}
|
|
|
|
int64_t totalAppDataSize = 0;
|
|
int64_t totalAppCacheSize = 0;
|
|
int64_t totalAppObbSize = 0;
|
|
for (auto appId : appIds) {
|
|
if (appId >= AID_APP_START) {
|
|
// App data
|
|
uid_t uid = multiuser_get_uid(userId, appId);
|
|
long projectId = uid - AID_APP_START + PROJECT_ID_EXT_DATA_START;
|
|
totalAppDataSize += GetOccupiedSpaceForProjectId(uuid, projectId);
|
|
|
|
// App cache
|
|
long cacheProjectId = uid - AID_APP_START + PROJECT_ID_EXT_CACHE_START;
|
|
totalAppCacheSize += GetOccupiedSpaceForProjectId(uuid, cacheProjectId);
|
|
|
|
// App OBBs
|
|
long obbProjectId = uid - AID_APP_START + PROJECT_ID_EXT_OBB_START;
|
|
totalAppObbSize += GetOccupiedSpaceForProjectId(uuid, obbProjectId);
|
|
}
|
|
}
|
|
// Total size should include app data + cache
|
|
totalSize += totalAppDataSize;
|
|
totalSize += totalAppCacheSize;
|
|
sizes.totalSize = totalSize;
|
|
|
|
// Only OBB is separate
|
|
sizes.obbSize = totalAppObbSize;
|
|
}
|
|
|
|
return sizes;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::getUserSize(const std::optional<std::string>& uuid,
|
|
int32_t userId, int32_t flags, const std::vector<int32_t>& appIds,
|
|
std::vector<int64_t>* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
// NOTE: Locking is relaxed on this method, since it's limited to
|
|
// read-only measurements without mutation.
|
|
|
|
// When modifying this logic, always verify using tests:
|
|
// runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetUserSize
|
|
|
|
#if MEASURE_DEBUG
|
|
LOG(INFO) << "Measuring user " << userId;
|
|
#endif
|
|
|
|
struct stats stats;
|
|
struct stats extStats;
|
|
memset(&stats, 0, sizeof(stats));
|
|
memset(&extStats, 0, sizeof(extStats));
|
|
|
|
auto uuidString = uuid.value_or("");
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
|
|
if (!IsQuotaSupported(uuidString)) {
|
|
flags &= ~FLAG_USE_QUOTA;
|
|
}
|
|
|
|
if (flags & FLAG_USE_QUOTA) {
|
|
ATRACE_BEGIN("code");
|
|
calculate_tree_size(create_data_app_path(uuid_), &stats.codeSize, -1, -1, true);
|
|
ATRACE_END();
|
|
|
|
ATRACE_BEGIN("data");
|
|
auto cePath = create_data_user_ce_path(uuid_, userId);
|
|
collectManualStatsForUser(cePath, &stats, true);
|
|
auto dePath = create_data_user_de_path(uuid_, userId);
|
|
collectManualStatsForUser(dePath, &stats, true);
|
|
ATRACE_END();
|
|
|
|
if (!uuid) {
|
|
ATRACE_BEGIN("profile");
|
|
auto userProfilePath = create_primary_cur_profile_dir_path(userId);
|
|
calculate_tree_size(userProfilePath, &stats.dataSize, -1, -1, true);
|
|
auto refProfilePath = create_primary_ref_profile_dir_path();
|
|
calculate_tree_size(refProfilePath, &stats.codeSize, -1, -1, true);
|
|
ATRACE_END();
|
|
}
|
|
|
|
ATRACE_BEGIN("external");
|
|
auto sizes = getExternalSizesForUserWithQuota(uuidString, userId, appIds);
|
|
extStats.dataSize += sizes.totalSize;
|
|
extStats.codeSize += sizes.obbSize;
|
|
ATRACE_END();
|
|
|
|
if (!uuid) {
|
|
ATRACE_BEGIN("dalvik");
|
|
calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize,
|
|
-1, -1, true);
|
|
calculate_tree_size(create_primary_cur_profile_dir_path(userId), &stats.dataSize,
|
|
-1, -1, true);
|
|
ATRACE_END();
|
|
}
|
|
ATRACE_BEGIN("quota");
|
|
int64_t dataSize = extStats.dataSize;
|
|
for (auto appId : appIds) {
|
|
if (appId >= AID_APP_START) {
|
|
collectQuotaStats(uuidString, userId, appId, &stats, &extStats);
|
|
#if MEASURE_DEBUG
|
|
// Sleep to make sure we don't lose logs
|
|
usleep(1);
|
|
#endif
|
|
}
|
|
}
|
|
extStats.dataSize = dataSize;
|
|
ATRACE_END();
|
|
} else {
|
|
ATRACE_BEGIN("obb");
|
|
auto obbPath = create_data_path(uuid_) + "/media/obb";
|
|
calculate_tree_size(obbPath, &extStats.codeSize);
|
|
ATRACE_END();
|
|
|
|
ATRACE_BEGIN("code");
|
|
calculate_tree_size(create_data_app_path(uuid_), &stats.codeSize);
|
|
ATRACE_END();
|
|
|
|
ATRACE_BEGIN("data");
|
|
auto cePath = create_data_user_ce_path(uuid_, userId);
|
|
collectManualStatsForUser(cePath, &stats);
|
|
auto dePath = create_data_user_de_path(uuid_, userId);
|
|
collectManualStatsForUser(dePath, &stats);
|
|
ATRACE_END();
|
|
|
|
if (!uuid) {
|
|
ATRACE_BEGIN("profile");
|
|
auto userProfilePath = create_primary_cur_profile_dir_path(userId);
|
|
calculate_tree_size(userProfilePath, &stats.dataSize);
|
|
auto refProfilePath = create_primary_ref_profile_dir_path();
|
|
calculate_tree_size(refProfilePath, &stats.codeSize);
|
|
ATRACE_END();
|
|
}
|
|
|
|
ATRACE_BEGIN("external");
|
|
auto dataMediaPath = create_data_media_path(uuid_, userId);
|
|
collectManualExternalStatsForUser(dataMediaPath, &extStats);
|
|
#if MEASURE_DEBUG
|
|
LOG(DEBUG) << "Measured external data " << extStats.dataSize << " cache "
|
|
<< extStats.cacheSize;
|
|
#endif
|
|
ATRACE_END();
|
|
|
|
if (!uuid) {
|
|
ATRACE_BEGIN("dalvik");
|
|
calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize);
|
|
calculate_tree_size(create_primary_cur_profile_dir_path(userId), &stats.dataSize);
|
|
ATRACE_END();
|
|
}
|
|
}
|
|
|
|
std::vector<int64_t> ret;
|
|
ret.push_back(stats.codeSize);
|
|
ret.push_back(stats.dataSize);
|
|
ret.push_back(stats.cacheSize);
|
|
ret.push_back(extStats.codeSize);
|
|
ret.push_back(extStats.dataSize);
|
|
ret.push_back(extStats.cacheSize);
|
|
#if MEASURE_DEBUG
|
|
LOG(DEBUG) << "Final result " << toString(ret);
|
|
#endif
|
|
*_aidl_return = ret;
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::getExternalSize(const std::optional<std::string>& uuid,
|
|
int32_t userId, int32_t flags, const std::vector<int32_t>& appIds,
|
|
std::vector<int64_t>* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
// NOTE: Locking is relaxed on this method, since it's limited to
|
|
// read-only measurements without mutation.
|
|
|
|
// When modifying this logic, always verify using tests:
|
|
// runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetExternalSize
|
|
|
|
#if MEASURE_DEBUG
|
|
LOG(INFO) << "Measuring external " << userId;
|
|
#endif
|
|
|
|
auto uuidString = uuid.value_or("");
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
|
|
int64_t totalSize = 0;
|
|
int64_t audioSize = 0;
|
|
int64_t videoSize = 0;
|
|
int64_t imageSize = 0;
|
|
int64_t appSize = 0;
|
|
int64_t obbSize = 0;
|
|
|
|
if (!IsQuotaSupported(uuidString)) {
|
|
flags &= ~FLAG_USE_QUOTA;
|
|
}
|
|
|
|
if (flags & FLAG_USE_QUOTA) {
|
|
ATRACE_BEGIN("quota");
|
|
auto sizes = getExternalSizesForUserWithQuota(uuidString, userId, appIds);
|
|
totalSize = sizes.totalSize;
|
|
audioSize = sizes.audioSize;
|
|
videoSize = sizes.videoSize;
|
|
imageSize = sizes.imageSize;
|
|
obbSize = sizes.obbSize;
|
|
ATRACE_END();
|
|
|
|
ATRACE_BEGIN("apps");
|
|
struct stats extStats;
|
|
memset(&extStats, 0, sizeof(extStats));
|
|
for (auto appId : appIds) {
|
|
if (appId >= AID_APP_START) {
|
|
collectQuotaStats(uuidString, userId, appId, nullptr, &extStats);
|
|
}
|
|
}
|
|
appSize = extStats.dataSize;
|
|
ATRACE_END();
|
|
} else {
|
|
ATRACE_BEGIN("manual");
|
|
FTS *fts;
|
|
FTSENT *p;
|
|
auto path = create_data_media_path(uuid_, userId);
|
|
char *argv[] = { (char*) path.c_str(), nullptr };
|
|
if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, nullptr))) {
|
|
return error("Failed to fts_open " + path);
|
|
}
|
|
while ((p = fts_read(fts)) != nullptr) {
|
|
char* ext;
|
|
int64_t size = (p->fts_statp->st_blocks * 512);
|
|
switch (p->fts_info) {
|
|
case FTS_F:
|
|
// Only categorize files not belonging to apps
|
|
if (p->fts_parent->fts_number == 0) {
|
|
ext = strrchr(p->fts_name, '.');
|
|
if (ext != nullptr) {
|
|
switch (MatchExtension(++ext)) {
|
|
case AID_MEDIA_AUDIO: audioSize += size; break;
|
|
case AID_MEDIA_VIDEO: videoSize += size; break;
|
|
case AID_MEDIA_IMAGE: imageSize += size; break;
|
|
}
|
|
}
|
|
}
|
|
[[fallthrough]]; // always count against total
|
|
case FTS_D:
|
|
// Ignore data belonging to specific apps
|
|
p->fts_number = p->fts_parent->fts_number;
|
|
if (p->fts_level == 1 && !strcmp(p->fts_name, "Android")) {
|
|
p->fts_number = 1;
|
|
}
|
|
[[fallthrough]]; // always count against total
|
|
case FTS_DEFAULT:
|
|
case FTS_SL:
|
|
case FTS_SLNONE:
|
|
if (p->fts_parent->fts_number == 1) {
|
|
appSize += size;
|
|
}
|
|
totalSize += size;
|
|
break;
|
|
}
|
|
}
|
|
fts_close(fts);
|
|
ATRACE_END();
|
|
|
|
ATRACE_BEGIN("obb");
|
|
auto obbPath = StringPrintf("%s/Android/obb",
|
|
create_data_media_path(uuid_, userId).c_str());
|
|
calculate_tree_size(obbPath, &obbSize);
|
|
ATRACE_END();
|
|
}
|
|
|
|
std::vector<int64_t> ret;
|
|
ret.push_back(totalSize);
|
|
ret.push_back(audioSize);
|
|
ret.push_back(videoSize);
|
|
ret.push_back(imageSize);
|
|
ret.push_back(appSize);
|
|
ret.push_back(obbSize);
|
|
#if MEASURE_DEBUG
|
|
LOG(DEBUG) << "Final result " << toString(ret);
|
|
#endif
|
|
*_aidl_return = ret;
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::getAppCrates(
|
|
const std::optional<std::string>& uuid,
|
|
const std::vector<std::string>& packageNames, int32_t userId,
|
|
std::optional<std::vector<std::optional<CrateMetadata>>>* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
for (const auto& packageName : packageNames) {
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
}
|
|
#ifdef ENABLE_STORAGE_CRATES
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
auto retVector = std::vector<std::optional<CrateMetadata>>();
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
|
|
std::function<void(CratedFolder, CrateMetadata&&)> onCreateCrate =
|
|
[&](CratedFolder cratedFolder, CrateMetadata&& crateMetadata) -> void {
|
|
if (cratedFolder == nullptr) {
|
|
return;
|
|
}
|
|
retVector.push_back(std::move(crateMetadata));
|
|
};
|
|
|
|
for (const auto& packageName : packageNames) {
|
|
#if CRATE_DEBUG
|
|
LOG(DEBUG) << "packageName = " << packageName;
|
|
#endif
|
|
auto crateManager = std::make_unique<CrateManager>(uuid_, userId, packageName);
|
|
crateManager->traverseAllCrates(onCreateCrate);
|
|
}
|
|
|
|
#if CRATE_DEBUG
|
|
LOG(WARNING) << "retVector.size() =" << retVector.size();
|
|
for (auto& item : retVector) {
|
|
CrateManager::dump(*item);
|
|
}
|
|
#endif
|
|
|
|
*_aidl_return = std::move(retVector);
|
|
#else // ENABLE_STORAGE_CRATES
|
|
_aidl_return->reset();
|
|
|
|
/* prevent compile warning fail */
|
|
if (userId < 0) {
|
|
return error();
|
|
}
|
|
#endif // ENABLE_STORAGE_CRATES
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::getUserCrates(
|
|
const std::optional<std::string>& uuid, int32_t userId,
|
|
std::optional<std::vector<std::optional<CrateMetadata>>>* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
#ifdef ENABLE_STORAGE_CRATES
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
auto retVector = std::vector<std::optional<CrateMetadata>>();
|
|
|
|
std::function<void(CratedFolder, CrateMetadata&&)> onCreateCrate =
|
|
[&](CratedFolder cratedFolder, CrateMetadata&& crateMetadata) -> void {
|
|
if (cratedFolder == nullptr) {
|
|
return;
|
|
}
|
|
retVector.push_back(std::move(crateMetadata));
|
|
};
|
|
|
|
std::function<void(FTSENT*)> onHandingPackage = [&](FTSENT* packageDir) -> void {
|
|
auto crateManager = std::make_unique<CrateManager>(uuid_, userId, packageDir->fts_name);
|
|
crateManager->traverseAllCrates(onCreateCrate);
|
|
};
|
|
CrateManager::traverseAllPackagesForUser(uuid, userId, onHandingPackage);
|
|
|
|
#if CRATE_DEBUG
|
|
LOG(DEBUG) << "retVector.size() =" << retVector.size();
|
|
for (auto& item : retVector) {
|
|
CrateManager::dump(*item);
|
|
}
|
|
#endif
|
|
|
|
*_aidl_return = std::move(retVector);
|
|
#else // ENABLE_STORAGE_CRATES
|
|
_aidl_return->reset();
|
|
|
|
/* prevent compile warning fail */
|
|
if (userId < 0) {
|
|
return error();
|
|
}
|
|
#endif // ENABLE_STORAGE_CRATES
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::setAppQuota(const std::optional<std::string>& uuid,
|
|
int32_t userId, int32_t appId, int64_t cacheQuota) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
std::lock_guard<std::recursive_mutex> lock(mQuotasLock);
|
|
|
|
int32_t uid = multiuser_get_uid(userId, appId);
|
|
mCacheQuotas[uid] = cacheQuota;
|
|
|
|
return ok();
|
|
}
|
|
|
|
// Dumps the contents of a profile file, using pkgname's dex files for pretty
|
|
// printing the result.
|
|
binder::Status InstalldNativeService::dumpProfiles(int32_t uid, const std::string& packageName,
|
|
const std::string& profileName, const std::string& codePath, bool* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
CHECK_ARGUMENT_PATH(codePath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
*_aidl_return = dump_profiles(uid, packageName, profileName, codePath);
|
|
return ok();
|
|
}
|
|
|
|
// Copy the contents of a system profile over the data profile.
|
|
binder::Status InstalldNativeService::copySystemProfile(const std::string& systemProfile,
|
|
int32_t packageUid, const std::string& packageName, const std::string& profileName,
|
|
bool* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
*_aidl_return = copy_system_profile(systemProfile, packageUid, packageName, profileName);
|
|
return ok();
|
|
}
|
|
|
|
// TODO: Consider returning error codes.
|
|
binder::Status InstalldNativeService::mergeProfiles(int32_t uid, const std::string& packageName,
|
|
const std::string& profileName, int* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
*_aidl_return = analyze_primary_profiles(uid, packageName, profileName);
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::createProfileSnapshot(int32_t appId,
|
|
const std::string& packageName, const std::string& profileName,
|
|
const std::string& classpath, bool* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
*_aidl_return = create_profile_snapshot(appId, packageName, profileName, classpath);
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::destroyProfileSnapshot(const std::string& packageName,
|
|
const std::string& profileName) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
std::string snapshot = create_snapshot_profile_path(packageName, profileName);
|
|
if ((unlink(snapshot.c_str()) != 0) && (errno != ENOENT)) {
|
|
return error("Failed to destroy profile snapshot for " + packageName + ":" + profileName);
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
static const char* getCStr(const std::optional<std::string>& data,
|
|
const char* default_value = nullptr) {
|
|
return data ? data->c_str() : default_value;
|
|
}
|
|
binder::Status InstalldNativeService::dexopt(const std::string& apkPath, int32_t uid,
|
|
const std::optional<std::string>& packageName, const std::string& instructionSet,
|
|
int32_t dexoptNeeded, const std::optional<std::string>& outputPath, int32_t dexFlags,
|
|
const std::string& compilerFilter, const std::optional<std::string>& uuid,
|
|
const std::optional<std::string>& classLoaderContext,
|
|
const std::optional<std::string>& seInfo, bool downgrade, int32_t targetSdkVersion,
|
|
const std::optional<std::string>& profileName,
|
|
const std::optional<std::string>& dexMetadataPath,
|
|
const std::optional<std::string>& compilationReason) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
CHECK_ARGUMENT_PATH(apkPath);
|
|
if (packageName && *packageName != "*") {
|
|
CHECK_ARGUMENT_PACKAGE_NAME(*packageName);
|
|
}
|
|
CHECK_ARGUMENT_PATH(outputPath);
|
|
CHECK_ARGUMENT_PATH(dexMetadataPath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* oat_dir = getCStr(outputPath);
|
|
const char* instruction_set = instructionSet.c_str();
|
|
if (oat_dir != nullptr && !createOatDir(oat_dir, instruction_set).isOk()) {
|
|
// Can't create oat dir - let dexopt use cache dir.
|
|
oat_dir = nullptr;
|
|
}
|
|
|
|
const char* apk_path = apkPath.c_str();
|
|
const char* pkgname = getCStr(packageName, "*");
|
|
const char* compiler_filter = compilerFilter.c_str();
|
|
const char* volume_uuid = getCStr(uuid);
|
|
const char* class_loader_context = getCStr(classLoaderContext);
|
|
const char* se_info = getCStr(seInfo);
|
|
const char* profile_name = getCStr(profileName);
|
|
const char* dm_path = getCStr(dexMetadataPath);
|
|
const char* compilation_reason = getCStr(compilationReason);
|
|
std::string error_msg;
|
|
int res = android::installd::dexopt(apk_path, uid, pkgname, instruction_set, dexoptNeeded,
|
|
oat_dir, dexFlags, compiler_filter, volume_uuid, class_loader_context, se_info,
|
|
downgrade, targetSdkVersion, profile_name, dm_path, compilation_reason, &error_msg);
|
|
return res ? error(res, error_msg) : ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::compileLayouts(const std::string& apkPath,
|
|
const std::string& packageName,
|
|
const std ::string& outDexFile, int uid,
|
|
bool* _aidl_return) {
|
|
const char* apk_path = apkPath.c_str();
|
|
const char* package_name = packageName.c_str();
|
|
const char* out_dex_file = outDexFile.c_str();
|
|
*_aidl_return = android::installd::view_compiler(apk_path, package_name, out_dex_file, uid);
|
|
return *_aidl_return ? ok() : error("viewcompiler failed");
|
|
}
|
|
|
|
binder::Status InstalldNativeService::linkNativeLibraryDirectory(
|
|
const std::optional<std::string>& uuid, const std::string& packageName,
|
|
const std::string& nativeLibPath32, int32_t userId) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
CHECK_ARGUMENT_PATH(nativeLibPath32);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
const char* pkgname = packageName.c_str();
|
|
const char* asecLibDir = nativeLibPath32.c_str();
|
|
struct stat s, libStat;
|
|
binder::Status res = ok();
|
|
|
|
auto _pkgdir = create_data_user_ce_package_path(uuid_, userId, pkgname);
|
|
auto _libsymlink = _pkgdir + PKG_LIB_POSTFIX;
|
|
|
|
const char* pkgdir = _pkgdir.c_str();
|
|
const char* libsymlink = _libsymlink.c_str();
|
|
|
|
if (stat(pkgdir, &s) < 0) {
|
|
return error("Failed to stat " + _pkgdir);
|
|
}
|
|
|
|
char *con = nullptr;
|
|
if (lgetfilecon(pkgdir, &con) < 0) {
|
|
return error("Failed to lgetfilecon " + _pkgdir);
|
|
}
|
|
|
|
if (chown(pkgdir, AID_INSTALL, AID_INSTALL) < 0) {
|
|
res = error("Failed to chown " + _pkgdir);
|
|
goto out;
|
|
}
|
|
|
|
if (chmod(pkgdir, 0700) < 0) {
|
|
res = error("Failed to chmod " + _pkgdir);
|
|
goto out;
|
|
}
|
|
|
|
if (lstat(libsymlink, &libStat) < 0) {
|
|
if (errno != ENOENT) {
|
|
res = error("Failed to stat " + _libsymlink);
|
|
goto out;
|
|
}
|
|
} else {
|
|
if (S_ISDIR(libStat.st_mode)) {
|
|
if (delete_dir_contents(libsymlink, 1, nullptr) < 0) {
|
|
res = error("Failed to delete " + _libsymlink);
|
|
goto out;
|
|
}
|
|
} else if (S_ISLNK(libStat.st_mode)) {
|
|
if (unlink(libsymlink) < 0) {
|
|
res = error("Failed to unlink " + _libsymlink);
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (symlink(asecLibDir, libsymlink) < 0) {
|
|
res = error("Failed to symlink " + _libsymlink + " to " + nativeLibPath32);
|
|
goto out;
|
|
}
|
|
|
|
if (lsetfilecon(libsymlink, con) < 0) {
|
|
res = error("Failed to lsetfilecon " + _libsymlink);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
free(con);
|
|
if (chmod(pkgdir, s.st_mode) < 0) {
|
|
auto msg = "Failed to cleanup chmod " + _pkgdir;
|
|
if (res.isOk()) {
|
|
res = error(msg);
|
|
} else {
|
|
PLOG(ERROR) << msg;
|
|
}
|
|
}
|
|
|
|
if (chown(pkgdir, s.st_uid, s.st_gid) < 0) {
|
|
auto msg = "Failed to cleanup chown " + _pkgdir;
|
|
if (res.isOk()) {
|
|
res = error(msg);
|
|
} else {
|
|
PLOG(ERROR) << msg;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::restoreconAppData(const std::optional<std::string>& uuid,
|
|
const std::string& packageName, int32_t userId, int32_t flags, int32_t appId,
|
|
const std::string& seInfo) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
binder::Status res = ok();
|
|
|
|
// SELINUX_ANDROID_RESTORECON_DATADATA flag is set by libselinux. Not needed here.
|
|
unsigned int seflags = SELINUX_ANDROID_RESTORECON_RECURSE;
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
const char* pkgName = packageName.c_str();
|
|
const char* seinfo = seInfo.c_str();
|
|
|
|
uid_t uid = multiuser_get_uid(userId, appId);
|
|
if (flags & FLAG_STORAGE_CE) {
|
|
auto path = create_data_user_ce_package_path(uuid_, userId, pkgName);
|
|
if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, seflags) < 0) {
|
|
res = error("restorecon failed for " + path);
|
|
}
|
|
}
|
|
if (flags & FLAG_STORAGE_DE) {
|
|
auto path = create_data_user_de_package_path(uuid_, userId, pkgName);
|
|
if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, seflags) < 0) {
|
|
res = error("restorecon failed for " + path);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
binder::Status InstalldNativeService::createOatDir(const std::string& oatDir,
|
|
const std::string& instructionSet) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PATH(oatDir);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* oat_dir = oatDir.c_str();
|
|
const char* instruction_set = instructionSet.c_str();
|
|
char oat_instr_dir[PKG_PATH_MAX];
|
|
|
|
if (validate_apk_path(oat_dir)) {
|
|
return error("Invalid path " + oatDir);
|
|
}
|
|
if (fs_prepare_dir(oat_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) {
|
|
return error("Failed to prepare " + oatDir);
|
|
}
|
|
if (selinux_android_restorecon(oat_dir, 0)) {
|
|
return error("Failed to restorecon " + oatDir);
|
|
}
|
|
snprintf(oat_instr_dir, PKG_PATH_MAX, "%s/%s", oat_dir, instruction_set);
|
|
if (fs_prepare_dir(oat_instr_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) {
|
|
return error(StringPrintf("Failed to prepare %s", oat_instr_dir));
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::rmPackageDir(const std::string& packageDir) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PATH(packageDir);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
if (validate_apk_path(packageDir.c_str())) {
|
|
return error("Invalid path " + packageDir);
|
|
}
|
|
if (rm_package_dir(packageDir) != 0) {
|
|
return error("Failed to delete " + packageDir);
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::linkFile(const std::string& relativePath,
|
|
const std::string& fromBase, const std::string& toBase) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PATH(fromBase);
|
|
CHECK_ARGUMENT_PATH(toBase);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* relative_path = relativePath.c_str();
|
|
const char* from_base = fromBase.c_str();
|
|
const char* to_base = toBase.c_str();
|
|
char from_path[PKG_PATH_MAX];
|
|
char to_path[PKG_PATH_MAX];
|
|
snprintf(from_path, PKG_PATH_MAX, "%s/%s", from_base, relative_path);
|
|
snprintf(to_path, PKG_PATH_MAX, "%s/%s", to_base, relative_path);
|
|
|
|
if (validate_apk_path_subdirs(from_path)) {
|
|
return error(StringPrintf("Invalid from path %s", from_path));
|
|
}
|
|
|
|
if (validate_apk_path_subdirs(to_path)) {
|
|
return error(StringPrintf("Invalid to path %s", to_path));
|
|
}
|
|
|
|
if (link(from_path, to_path) < 0) {
|
|
return error(StringPrintf("Failed to link from %s to %s", from_path, to_path));
|
|
}
|
|
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::moveAb(const std::string& apkPath,
|
|
const std::string& instructionSet, const std::string& outputPath) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PATH(apkPath);
|
|
CHECK_ARGUMENT_PATH(outputPath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* apk_path = apkPath.c_str();
|
|
const char* instruction_set = instructionSet.c_str();
|
|
const char* oat_dir = outputPath.c_str();
|
|
|
|
bool success = move_ab(apk_path, instruction_set, oat_dir);
|
|
return success ? ok() : error();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::deleteOdex(const std::string& apkPath,
|
|
const std::string& instructionSet, const std::optional<std::string>& outputPath,
|
|
int64_t* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PATH(apkPath);
|
|
CHECK_ARGUMENT_PATH(outputPath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
const char* apk_path = apkPath.c_str();
|
|
const char* instruction_set = instructionSet.c_str();
|
|
const char* oat_dir = outputPath ? outputPath->c_str() : nullptr;
|
|
|
|
*_aidl_return = delete_odex(apk_path, instruction_set, oat_dir);
|
|
return *_aidl_return == -1 ? error() : ok();
|
|
}
|
|
|
|
// This kernel feature is experimental.
|
|
// TODO: remove local definition once upstreamed
|
|
#ifndef FS_IOC_ENABLE_VERITY
|
|
|
|
#define FS_IOC_ENABLE_VERITY _IO('f', 133)
|
|
#define FS_IOC_SET_VERITY_MEASUREMENT _IOW('f', 134, struct fsverity_measurement)
|
|
|
|
#define FS_VERITY_ALG_SHA256 1
|
|
|
|
struct fsverity_measurement {
|
|
__u16 digest_algorithm;
|
|
__u16 digest_size;
|
|
__u32 reserved1;
|
|
__u64 reserved2[3];
|
|
__u8 digest[];
|
|
};
|
|
|
|
#endif
|
|
|
|
binder::Status InstalldNativeService::installApkVerity(const std::string& filePath,
|
|
android::base::unique_fd verityInputAshmem, int32_t contentSize) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PATH(filePath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
if (!android::base::GetBoolProperty(kPropApkVerityMode, false)) {
|
|
return ok();
|
|
}
|
|
#ifndef NDEBUG
|
|
ASSERT_PAGE_SIZE_4K();
|
|
#endif
|
|
// TODO: also check fsverity support in the current file system if compiled with DEBUG.
|
|
// TODO: change ashmem to some temporary file to support huge apk.
|
|
if (!ashmem_valid(verityInputAshmem.get())) {
|
|
return error("FD is not an ashmem");
|
|
}
|
|
|
|
// 1. Seek to the next page boundary beyond the end of the file.
|
|
::android::base::unique_fd wfd(open(filePath.c_str(), O_WRONLY));
|
|
if (wfd.get() < 0) {
|
|
return error("Failed to open " + filePath);
|
|
}
|
|
struct stat st;
|
|
if (fstat(wfd.get(), &st) < 0) {
|
|
return error("Failed to stat " + filePath);
|
|
}
|
|
// fsverity starts from the block boundary.
|
|
off_t padding = kVerityPageSize - st.st_size % kVerityPageSize;
|
|
if (padding == kVerityPageSize) {
|
|
padding = 0;
|
|
}
|
|
if (lseek(wfd.get(), st.st_size + padding, SEEK_SET) < 0) {
|
|
return error("Failed to lseek " + filePath);
|
|
}
|
|
|
|
// 2. Write everything in the ashmem to the file. Note that allocated
|
|
// ashmem size is multiple of page size, which is different from the
|
|
// actual content size.
|
|
int shmSize = ashmem_get_size_region(verityInputAshmem.get());
|
|
if (shmSize < 0) {
|
|
return error("Failed to get ashmem size: " + std::to_string(shmSize));
|
|
}
|
|
if (contentSize < 0) {
|
|
return error("Invalid content size: " + std::to_string(contentSize));
|
|
}
|
|
if (contentSize > shmSize) {
|
|
return error("Content size overflow: " + std::to_string(contentSize) + " > " +
|
|
std::to_string(shmSize));
|
|
}
|
|
auto data = std::unique_ptr<void, std::function<void (void *)>>(
|
|
mmap(nullptr, contentSize, PROT_READ, MAP_SHARED, verityInputAshmem.get(), 0),
|
|
[contentSize] (void* ptr) {
|
|
if (ptr != MAP_FAILED) {
|
|
munmap(ptr, contentSize);
|
|
}
|
|
});
|
|
|
|
if (data.get() == MAP_FAILED) {
|
|
return error("Failed to mmap the ashmem");
|
|
}
|
|
char* cursor = reinterpret_cast<char*>(data.get());
|
|
int remaining = contentSize;
|
|
while (remaining > 0) {
|
|
int ret = TEMP_FAILURE_RETRY(write(wfd.get(), cursor, remaining));
|
|
if (ret < 0) {
|
|
return error("Failed to write to " + filePath + " (" + std::to_string(remaining) +
|
|
+ "/" + std::to_string(contentSize) + ")");
|
|
}
|
|
cursor += ret;
|
|
remaining -= ret;
|
|
}
|
|
wfd.reset();
|
|
|
|
// 3. Enable fsverity (needs readonly fd. Once it's done, the file becomes immutable.
|
|
::android::base::unique_fd rfd(open(filePath.c_str(), O_RDONLY));
|
|
if (ioctl(rfd.get(), FS_IOC_ENABLE_VERITY, nullptr) < 0) {
|
|
return error("Failed to enable fsverity on " + filePath);
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::assertFsverityRootHashMatches(const std::string& filePath,
|
|
const std::vector<uint8_t>& expectedHash) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PATH(filePath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
if (!android::base::GetBoolProperty(kPropApkVerityMode, false)) {
|
|
return ok();
|
|
}
|
|
// TODO: also check fsverity support in the current file system if compiled with DEBUG.
|
|
if (expectedHash.size() != kSha256Size) {
|
|
return error("verity hash size should be " + std::to_string(kSha256Size) + " but is " +
|
|
std::to_string(expectedHash.size()));
|
|
}
|
|
|
|
::android::base::unique_fd fd(open(filePath.c_str(), O_RDONLY));
|
|
if (fd.get() < 0) {
|
|
return error("Failed to open " + filePath + ": " + strerror(errno));
|
|
}
|
|
|
|
unsigned int buffer_size = sizeof(fsverity_measurement) + kSha256Size;
|
|
std::vector<char> buffer(buffer_size, 0);
|
|
|
|
fsverity_measurement* config = reinterpret_cast<fsverity_measurement*>(buffer.data());
|
|
config->digest_algorithm = FS_VERITY_ALG_SHA256;
|
|
config->digest_size = kSha256Size;
|
|
memcpy(config->digest, expectedHash.data(), kSha256Size);
|
|
if (ioctl(fd.get(), FS_IOC_SET_VERITY_MEASUREMENT, config) < 0) {
|
|
// This includes an expected failure case with no FSVerity setup. It normally happens when
|
|
// the apk does not contains the Merkle tree root hash.
|
|
return error("Failed to measure fsverity on " + filePath + ": " + strerror(errno));
|
|
}
|
|
return ok(); // hashes match
|
|
}
|
|
|
|
binder::Status InstalldNativeService::reconcileSecondaryDexFile(
|
|
const std::string& dexPath, const std::string& packageName, int32_t uid,
|
|
const std::vector<std::string>& isas, const std::optional<std::string>& volumeUuid,
|
|
int32_t storage_flag, bool* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(volumeUuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
CHECK_ARGUMENT_PATH(dexPath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
bool result = android::installd::reconcile_secondary_dex_file(
|
|
dexPath, packageName, uid, isas, volumeUuid, storage_flag, _aidl_return);
|
|
return result ? ok() : error();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::hashSecondaryDexFile(
|
|
const std::string& dexPath, const std::string& packageName, int32_t uid,
|
|
const std::optional<std::string>& volumeUuid, int32_t storageFlag,
|
|
std::vector<uint8_t>* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(volumeUuid);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
CHECK_ARGUMENT_PATH(dexPath);
|
|
|
|
// mLock is not taken here since we will never modify the file system.
|
|
// If a file is modified just as we are reading it this may result in an
|
|
// anomalous hash, but that's ok.
|
|
bool result = android::installd::hash_secondary_dex_file(
|
|
dexPath, packageName, uid, volumeUuid, storageFlag, _aidl_return);
|
|
return result ? ok() : error();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::invalidateMounts() {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
std::lock_guard<std::recursive_mutex> lock(mMountsLock);
|
|
|
|
mStorageMounts.clear();
|
|
|
|
#if !BYPASS_QUOTA
|
|
if (!InvalidateQuotaMounts()) {
|
|
return error("Failed to read mounts");
|
|
}
|
|
#endif
|
|
|
|
std::ifstream in("/proc/mounts");
|
|
if (!in.is_open()) {
|
|
return error("Failed to read mounts");
|
|
}
|
|
|
|
std::string source;
|
|
std::string target;
|
|
std::string ignored;
|
|
while (!in.eof()) {
|
|
std::getline(in, source, ' ');
|
|
std::getline(in, target, ' ');
|
|
std::getline(in, ignored);
|
|
|
|
if (android::base::GetBoolProperty(kFuseProp, false)) {
|
|
if (target.find(kMntFuse) == 0) {
|
|
LOG(DEBUG) << "Found storage mount " << source << " at " << target;
|
|
mStorageMounts[source] = target;
|
|
}
|
|
} else {
|
|
#if !BYPASS_SDCARDFS
|
|
if (target.find(kMntSdcardfs) == 0) {
|
|
LOG(DEBUG) << "Found storage mount " << source << " at " << target;
|
|
mStorageMounts[source] = target;
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
// Mount volume's CE and DE storage to mirror
|
|
binder::Status InstalldNativeService::tryMountDataMirror(
|
|
const std::optional<std::string>& uuid) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
if (!sAppDataIsolationEnabled) {
|
|
return ok();
|
|
}
|
|
if (!uuid) {
|
|
return error("Should not happen, mounting uuid == null");
|
|
}
|
|
|
|
const char* uuid_ = uuid->c_str();
|
|
|
|
std::string mirrorVolCePath(StringPrintf("%s/%s", kDataMirrorCePath, uuid_));
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
if (fs_prepare_dir(mirrorVolCePath.c_str(), 0711, AID_SYSTEM, AID_SYSTEM) != 0) {
|
|
return error("Failed to create CE mirror");
|
|
}
|
|
|
|
std::string mirrorVolDePath(StringPrintf("%s/%s", kDataMirrorDePath, uuid_));
|
|
if (fs_prepare_dir(mirrorVolDePath.c_str(), 0711, AID_SYSTEM, AID_SYSTEM) != 0) {
|
|
return error("Failed to create DE mirror");
|
|
}
|
|
|
|
auto cePath = StringPrintf("%s/user", create_data_path(uuid_).c_str());
|
|
auto dePath = StringPrintf("%s/user_de", create_data_path(uuid_).c_str());
|
|
|
|
if (access(cePath.c_str(), F_OK) != 0) {
|
|
return error("Cannot access CE path: " + cePath);
|
|
}
|
|
if (access(dePath.c_str(), F_OK) != 0) {
|
|
return error("Cannot access DE path: " + dePath);
|
|
}
|
|
|
|
struct stat ceStat, mirrorCeStat;
|
|
if (stat(cePath.c_str(), &ceStat) != 0) {
|
|
return error("Failed to stat " + cePath);
|
|
}
|
|
if (stat(mirrorVolCePath.c_str(), &mirrorCeStat) != 0) {
|
|
return error("Failed to stat " + mirrorVolCePath);
|
|
}
|
|
|
|
if (mirrorCeStat.st_ino == ceStat.st_ino) {
|
|
// As it's being called by prepareUserStorage, it can be called multiple times.
|
|
// Hence, we if we mount it already, we should skip it.
|
|
LOG(WARNING) << "CE dir is mounted already: " + cePath;
|
|
return ok();
|
|
}
|
|
|
|
// Mount CE mirror
|
|
if (TEMP_FAILURE_RETRY(mount(cePath.c_str(), mirrorVolCePath.c_str(), NULL,
|
|
MS_NOSUID | MS_NODEV | MS_NOATIME | MS_BIND | MS_NOEXEC, nullptr)) == -1) {
|
|
return error("Failed to mount " + mirrorVolCePath);
|
|
}
|
|
|
|
// Mount DE mirror
|
|
if (TEMP_FAILURE_RETRY(mount(dePath.c_str(), mirrorVolDePath.c_str(), NULL,
|
|
MS_NOSUID | MS_NODEV | MS_NOATIME | MS_BIND | MS_NOEXEC, nullptr)) == -1) {
|
|
return error("Failed to mount " + mirrorVolDePath);
|
|
}
|
|
return ok();
|
|
}
|
|
|
|
// Unmount volume's CE and DE storage from mirror
|
|
binder::Status InstalldNativeService::onPrivateVolumeRemoved(
|
|
const std::optional<std::string>& uuid) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_UUID(uuid);
|
|
if (!sAppDataIsolationEnabled) {
|
|
return ok();
|
|
}
|
|
if (!uuid) {
|
|
// It happens when private volume failed to mount.
|
|
LOG(INFO) << "Ignore unmount uuid=null";
|
|
return ok();
|
|
}
|
|
const char* uuid_ = uuid->c_str();
|
|
|
|
binder::Status res = ok();
|
|
|
|
std::string mirrorCeVolPath(StringPrintf("%s/%s", kDataMirrorCePath, uuid_));
|
|
std::string mirrorDeVolPath(StringPrintf("%s/%s", kDataMirrorDePath, uuid_));
|
|
|
|
// Unmount CE storage
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
if (TEMP_FAILURE_RETRY(umount(mirrorCeVolPath.c_str())) != 0) {
|
|
if (errno != ENOENT) {
|
|
res = error(StringPrintf("Failed to umount %s %s", mirrorCeVolPath.c_str(),
|
|
strerror(errno)));
|
|
}
|
|
}
|
|
if (delete_dir_contents_and_dir(mirrorCeVolPath, true) != 0) {
|
|
res = error("Failed to delete " + mirrorCeVolPath);
|
|
}
|
|
|
|
// Unmount DE storage
|
|
if (TEMP_FAILURE_RETRY(umount(mirrorDeVolPath.c_str())) != 0) {
|
|
if (errno != ENOENT) {
|
|
res = error(StringPrintf("Failed to umount %s %s", mirrorDeVolPath.c_str(),
|
|
strerror(errno)));
|
|
}
|
|
}
|
|
if (delete_dir_contents_and_dir(mirrorDeVolPath, true) != 0) {
|
|
res = error("Failed to delete " + mirrorDeVolPath);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
std::string InstalldNativeService::findDataMediaPath(
|
|
const std::optional<std::string>& uuid, userid_t userid) {
|
|
std::lock_guard<std::recursive_mutex> lock(mMountsLock);
|
|
const char* uuid_ = uuid ? uuid->c_str() : nullptr;
|
|
auto path = StringPrintf("%s/media", create_data_path(uuid_).c_str());
|
|
auto resolved = mStorageMounts[path];
|
|
if (resolved.empty()) {
|
|
LOG(WARNING) << "Failed to find storage mount for " << path;
|
|
resolved = path;
|
|
}
|
|
return StringPrintf("%s/%u", resolved.c_str(), userid);
|
|
}
|
|
|
|
binder::Status InstalldNativeService::isQuotaSupported(
|
|
const std::optional<std::string>& uuid, bool* _aidl_return) {
|
|
*_aidl_return = IsQuotaSupported(uuid.value_or(""));
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::prepareAppProfile(const std::string& packageName,
|
|
int32_t userId, int32_t appId, const std::string& profileName, const std::string& codePath,
|
|
const std::optional<std::string>& dexMetadata, bool* _aidl_return) {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
CHECK_ARGUMENT_PACKAGE_NAME(packageName);
|
|
CHECK_ARGUMENT_PATH(codePath);
|
|
std::lock_guard<std::recursive_mutex> lock(mLock);
|
|
|
|
*_aidl_return = prepare_app_profile(packageName, userId, appId, profileName, codePath,
|
|
dexMetadata);
|
|
return ok();
|
|
}
|
|
|
|
binder::Status InstalldNativeService::migrateLegacyObbData() {
|
|
ENFORCE_UID(AID_SYSTEM);
|
|
// NOTE: The lint warning doesn't apply to the use of system(3) with
|
|
// absolute parse and no command line arguments.
|
|
if (system("/system/bin/migrate_legacy_obb_data.sh") != 0) { // NOLINT(cert-env33-c)
|
|
LOG(ERROR) << "Unable to migrate legacy obb data";
|
|
}
|
|
|
|
return ok();
|
|
}
|
|
|
|
} // namespace installd
|
|
} // namespace android
|