/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <string.h>
#include <sys/statvfs.h>
#include <sys/xattr.h>
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
#include <cutils/properties.h>
#include <gtest/gtest.h>
#include "InstalldNativeService.h"
#include "globals.h"
#include "utils.h"
using android::base::StringPrintf;
namespace android {
namespace installd {
constexpr const char* kTestUuid = "TEST";
constexpr int64_t kKbInBytes = 1024;
constexpr int64_t kMbInBytes = 1024 * kKbInBytes;
constexpr int64_t kGbInBytes = 1024 * kMbInBytes;
constexpr int64_t kTbInBytes = 1024 * kGbInBytes;
static constexpr int FLAG_FREE_CACHE_V2 = 1 << 13;
static constexpr int FLAG_FREE_CACHE_V2_DEFY_QUOTA = 1 << 14;
int get_property(const char *key, char *value, const char *default_value) {
return property_get(key, value, default_value);
}
bool calculate_oat_file_path(char path[PKG_PATH_MAX] ATTRIBUTE_UNUSED,
const char *oat_dir ATTRIBUTE_UNUSED,
const char *apk_path ATTRIBUTE_UNUSED,
const char *instruction_set ATTRIBUTE_UNUSED) {
return false;
}
bool calculate_odex_file_path(char path[PKG_PATH_MAX] ATTRIBUTE_UNUSED,
const char *apk_path ATTRIBUTE_UNUSED,
const char *instruction_set ATTRIBUTE_UNUSED) {
return false;
}
bool create_cache_path(char path[PKG_PATH_MAX] ATTRIBUTE_UNUSED,
const char *src ATTRIBUTE_UNUSED,
const char *instruction_set ATTRIBUTE_UNUSED) {
return false;
}
static void mkdir(const char* path) {
const char* fullPath = StringPrintf("/data/local/tmp/user/0/%s", path).c_str();
::mkdir(fullPath, 0755);
}
static void touch(const char* path, int len, int time) {
const char* fullPath = StringPrintf("/data/local/tmp/user/0/%s", path).c_str();
int fd = ::open(fullPath, O_RDWR | O_CREAT, 0644);
::fallocate(fd, 0, 0, len);
::close(fd);
struct utimbuf times;
times.actime = times.modtime = std::time(0) + time;
::utime(fullPath, ×);
}
static int exists(const char* path) {
const char* fullPath = StringPrintf("/data/local/tmp/user/0/%s", path).c_str();
return ::access(fullPath, F_OK);
}
static int64_t size(const char* path) {
const char* fullPath = StringPrintf("/data/local/tmp/user/0/%s", path).c_str();
struct stat buf;
if (!stat(fullPath, &buf)) {
return buf.st_size;
} else {
return -1;
}
}
static int64_t free() {
struct statvfs buf;
if (!statvfs("/data/local/tmp", &buf)) {
return static_cast<int64_t>(buf.f_bavail) * buf.f_frsize;
} else {
PLOG(ERROR) << "Failed to statvfs";
return -1;
}
}
static void setxattr(const char* path, const char* key) {
const char* fullPath = StringPrintf("/data/local/tmp/user/0/%s", path).c_str();
::setxattr(fullPath, key, "", 0, 0);
}
class CacheTest : public testing::Test {
protected:
InstalldNativeService* service;
std::unique_ptr<std::string> testUuid;
virtual void SetUp() {
setenv("ANDROID_LOG_TAGS", "*:v", 1);
android::base::InitLogging(nullptr);
service = new InstalldNativeService();
testUuid = std::make_unique<std::string>();
*testUuid = std::string(kTestUuid);
system("mkdir -p /data/local/tmp/user/0");
}
virtual void TearDown() {
delete service;
system("rm -rf /data/local/tmp/user");
}
};
TEST_F(CacheTest, FreeCache_All) {
LOG(INFO) << "FreeCache_All";
mkdir("com.example");
touch("com.example/normal", 1 * kMbInBytes, 60);
mkdir("com.example/cache");
mkdir("com.example/cache/foo");
touch("com.example/cache/foo/one", 1 * kMbInBytes, 60);
touch("com.example/cache/foo/two", 2 * kMbInBytes, 120);
EXPECT_EQ(0, exists("com.example/normal"));
EXPECT_EQ(0, exists("com.example/cache/foo/one"));
EXPECT_EQ(0, exists("com.example/cache/foo/two"));
service->freeCache(testUuid, kTbInBytes, 0,
FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
EXPECT_EQ(0, exists("com.example/normal"));
EXPECT_EQ(-1, exists("com.example/cache/foo/one"));
EXPECT_EQ(-1, exists("com.example/cache/foo/two"));
}
TEST_F(CacheTest, FreeCache_Age) {
LOG(INFO) << "FreeCache_Age";
mkdir("com.example");
mkdir("com.example/cache");
mkdir("com.example/cache/foo");
touch("com.example/cache/foo/one", kMbInBytes, 60);
touch("com.example/cache/foo/two", kMbInBytes, 120);
service->freeCache(testUuid, free() + kKbInBytes, 0,
FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
EXPECT_EQ(-1, exists("com.example/cache/foo/one"));
EXPECT_EQ(0, exists("com.example/cache/foo/two"));
service->freeCache(testUuid, free() + kKbInBytes, 0,
FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
EXPECT_EQ(-1, exists("com.example/cache/foo/one"));
EXPECT_EQ(-1, exists("com.example/cache/foo/two"));
}
TEST_F(CacheTest, FreeCache_Tombstone) {
LOG(INFO) << "FreeCache_Tombstone";
mkdir("com.example");
mkdir("com.example/cache");
mkdir("com.example/cache/foo");
touch("com.example/cache/foo/foo1", 1 * kMbInBytes, 60);
touch("com.example/cache/foo/foo2", 1 * kMbInBytes, 60);
mkdir("com.example/cache/bar");
touch("com.example/cache/bar/bar1", 2 * kMbInBytes, 120);
touch("com.example/cache/bar/bar2", 2 * kMbInBytes, 120);
setxattr("com.example/cache/bar", "user.cache_tombstone");
EXPECT_EQ(0, exists("com.example/cache/foo/foo1"));
EXPECT_EQ(0, exists("com.example/cache/foo/foo2"));
EXPECT_EQ(0, exists("com.example/cache/bar/bar1"));
EXPECT_EQ(0, exists("com.example/cache/bar/bar2"));
EXPECT_EQ(2 * kMbInBytes, size("com.example/cache/bar/bar1"));
EXPECT_EQ(2 * kMbInBytes, size("com.example/cache/bar/bar2"));
service->freeCache(testUuid, kTbInBytes, 0,
FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
EXPECT_EQ(-1, exists("com.example/cache/foo/foo1"));
EXPECT_EQ(-1, exists("com.example/cache/foo/foo2"));
EXPECT_EQ(0, exists("com.example/cache/bar/bar1"));
EXPECT_EQ(0, exists("com.example/cache/bar/bar2"));
EXPECT_EQ(0, size("com.example/cache/bar/bar1"));
EXPECT_EQ(0, size("com.example/cache/bar/bar2"));
}
TEST_F(CacheTest, FreeCache_Group) {
LOG(INFO) << "FreeCache_Group";
mkdir("com.example");
mkdir("com.example/cache");
mkdir("com.example/cache/foo");
touch("com.example/cache/foo/foo1", 1 * kMbInBytes, 60);
touch("com.example/cache/foo/foo2", 1 * kMbInBytes, 120);
setxattr("com.example/cache/foo", "user.cache_group");
service->freeCache(testUuid, free() + kKbInBytes, 0,
FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
EXPECT_EQ(-1, exists("com.example/cache/foo/foo1"));
EXPECT_EQ(-1, exists("com.example/cache/foo/foo2"));
}
TEST_F(CacheTest, FreeCache_GroupTombstone) {
LOG(INFO) << "FreeCache_GroupTombstone";
mkdir("com.example");
mkdir("com.example/cache");
// this dir must look really old for some reason?
mkdir("com.example/cache/group");
touch("com.example/cache/group/file1", kMbInBytes, 120);
touch("com.example/cache/group/file2", kMbInBytes, 120);
mkdir("com.example/cache/group/dir");
touch("com.example/cache/group/dir/file1", kMbInBytes, 120);
touch("com.example/cache/group/dir/file2", kMbInBytes, 120);
mkdir("com.example/cache/group/tomb");
touch("com.example/cache/group/tomb/file1", kMbInBytes, 120);
touch("com.example/cache/group/tomb/file2", kMbInBytes, 120);
mkdir("com.example/cache/group/tomb/dir");
touch("com.example/cache/group/tomb/dir/file1", kMbInBytes, 120);
touch("com.example/cache/group/tomb/dir/file2", kMbInBytes, 120);
mkdir("com.example/cache/tomb");
touch("com.example/cache/tomb/file1", kMbInBytes, 240);
touch("com.example/cache/tomb/file2", kMbInBytes, 240);
mkdir("com.example/cache/tomb/dir");
touch("com.example/cache/tomb/dir/file1", kMbInBytes, 240);
touch("com.example/cache/tomb/dir/file2", kMbInBytes, 240);
mkdir("com.example/cache/tomb/group");
touch("com.example/cache/tomb/group/file1", kMbInBytes, 60);
touch("com.example/cache/tomb/group/file2", kMbInBytes, 60);
mkdir("com.example/cache/tomb/group/dir");
touch("com.example/cache/tomb/group/dir/file1", kMbInBytes, 60);
touch("com.example/cache/tomb/group/dir/file2", kMbInBytes, 60);
setxattr("com.example/cache/group", "user.cache_group");
setxattr("com.example/cache/group/tomb", "user.cache_tombstone");
setxattr("com.example/cache/tomb", "user.cache_tombstone");
setxattr("com.example/cache/tomb/group", "user.cache_group");
service->freeCache(testUuid, free() + kKbInBytes, 0,
FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
EXPECT_EQ(kMbInBytes, size("com.example/cache/group/file1"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/group/file2"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/group/dir/file1"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/group/dir/file2"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/group/tomb/file1"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/group/tomb/file2"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/group/tomb/dir/file1"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/group/tomb/dir/file2"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/tomb/file1"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/tomb/file2"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/tomb/dir/file1"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/tomb/dir/file2"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/file1"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/file2"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file1"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file2"));
service->freeCache(testUuid, free() + kKbInBytes, 0,
FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
EXPECT_EQ(-1, size("com.example/cache/group/file1"));
EXPECT_EQ(-1, size("com.example/cache/group/file2"));
EXPECT_EQ(-1, size("com.example/cache/group/dir/file1"));
EXPECT_EQ(-1, size("com.example/cache/group/dir/file2"));
EXPECT_EQ(0, size("com.example/cache/group/tomb/file1"));
EXPECT_EQ(0, size("com.example/cache/group/tomb/file2"));
EXPECT_EQ(0, size("com.example/cache/group/tomb/dir/file1"));
EXPECT_EQ(0, size("com.example/cache/group/tomb/dir/file2"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/tomb/file1"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/tomb/file2"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/tomb/dir/file1"));
EXPECT_EQ(kMbInBytes, size("com.example/cache/tomb/dir/file2"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/file1"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/file2"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file1"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file2"));
service->freeCache(testUuid, kTbInBytes, 0,
FLAG_FREE_CACHE_V2 | FLAG_FREE_CACHE_V2_DEFY_QUOTA);
EXPECT_EQ(-1, size("com.example/cache/group/file1"));
EXPECT_EQ(-1, size("com.example/cache/group/file2"));
EXPECT_EQ(-1, size("com.example/cache/group/dir/file1"));
EXPECT_EQ(-1, size("com.example/cache/group/dir/file2"));
EXPECT_EQ(0, size("com.example/cache/group/tomb/file1"));
EXPECT_EQ(0, size("com.example/cache/group/tomb/file2"));
EXPECT_EQ(0, size("com.example/cache/group/tomb/dir/file1"));
EXPECT_EQ(0, size("com.example/cache/group/tomb/dir/file2"));
EXPECT_EQ(0, size("com.example/cache/tomb/file1"));
EXPECT_EQ(0, size("com.example/cache/tomb/file2"));
EXPECT_EQ(0, size("com.example/cache/tomb/dir/file1"));
EXPECT_EQ(0, size("com.example/cache/tomb/dir/file2"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/file1"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/file2"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file1"));
EXPECT_EQ(0, size("com.example/cache/tomb/group/dir/file2"));
}
} // namespace installd
} // namespace android