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homedirs_unittest.cc
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homedirs_unittest.cc
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// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cryptohome/homedirs.h"
#include <memory>
#include <vector>
#include <base/files/file_path.h>
#include <base/files/scoped_temp_dir.h>
#include <base/strings/string_number_conversions.h>
#include <base/strings/stringprintf.h>
#include <brillo/cryptohome.h>
#include <brillo/data_encoding.h>
#include <brillo/secure_blob.h>
#include <chromeos/constants/cryptohome.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <policy/mock_device_policy.h>
#include "cryptohome/credentials.h"
#include "cryptohome/crypto_error.h"
#include "cryptohome/cryptolib.h"
#include "cryptohome/make_tests.h"
#include "cryptohome/mock_crypto.h"
#include "cryptohome/mock_platform.h"
#include "cryptohome/mock_tpm.h"
#include "cryptohome/mock_user_oldest_activity_timestamp_cache.h"
#include "cryptohome/mock_vault_keyset.h"
#include "cryptohome/mock_vault_keyset_factory.h"
#include "cryptohome/mount.h"
#include "signed_secret.pb.h" // NOLINT(build/include)
using base::FilePath;
using base::StringPrintf;
using brillo::SecureBlob;
using ::testing::DoAll;
using ::testing::EndsWith;
using ::testing::HasSubstr;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::InvokeWithoutArgs;
using ::testing::MatchesRegex;
using ::testing::NiceMock;
using ::testing::Return;
using ::testing::ReturnRef;
using ::testing::SetArgPointee;
using ::testing::SetArrayArgument;
using ::testing::StartsWith;
using ::testing::StrEq;
using ::testing::_;
namespace cryptohome {
extern const char kKeyFile[];
extern const int kKeyFileMax;
extern const char kKeyLegacyPrefix[];
ACTION_P2(SetOwner, owner_known, owner) {
if (owner_known)
*arg0 = owner;
return owner_known;
}
ACTION_P(SetEphemeralUsersEnabled, ephemeral_users_enabled) {
*arg0 = ephemeral_users_enabled;
return true;
}
ACTION_P(SetCleanUpStrategy, clean_up_strategy) {
if (!clean_up_strategy.empty()) {
*arg0 = clean_up_strategy;
return true;
}
return false;
}
namespace {
const FilePath kTestRoot("alt_test_home_dir");
struct homedir {
const char *name;
base::Time::Exploded time;
};
const char *kOwner = "<<OWNER>>";
// Note, the order is important. These should be oldest to newest.
const struct homedir kHomedirs[] = {
{ "d5510a8dda6d743c46dadd979a61ae5603529742", { 2011, 1, 6, 1 } },
{ "8f995cdee8f0711fd32e1cf6246424002c483d47", { 2011, 2, 2, 1 } },
{ "973b9640e86f6073c6b6e2759ff3cf3084515e61", { 2011, 3, 2, 1 } },
{ kOwner, { 2011, 4, 5, 1 } }
};
NiceMock<MockFileEnumerator>* CreateMockFileEnumerator() {
return new NiceMock<MockFileEnumerator>;
}
FileEnumerator::FileInfo CreateFileInfo(const FilePath& path, ino_t inode) {
struct stat file_stat;
file_stat.st_ino = inode;
return FileEnumerator::FileInfo(path, file_stat);
}
} // namespace
class HomeDirsTest
: public ::testing::TestWithParam<bool /* should_test_ecryptfs */> {
public:
HomeDirsTest() : crypto_(&platform_) { }
virtual ~HomeDirsTest() { }
void SetUp() {
test_helper_.SetUpSystemSalt();
// TODO(wad) Only generate the user data we need. This is time consuming.
test_helper_.InitTestData(kTestRoot, kDefaultUsers, kDefaultUserCount,
ShouldTestEcryptfs());
homedirs_.set_shadow_root(kTestRoot);
test_helper_.InjectSystemSalt(&platform_, kTestRoot.Append("salt"));
set_policy(true, kOwner, false, "");
homedirs_.Init(&platform_, &crypto_, ×tamp_cache_);
FilePath fp = FilePath(kTestRoot);
for (const auto& hd : kHomedirs) {
FilePath path = fp.Append(hd.name);
std::string user;
if (hd.name == std::string(kOwner))
homedirs_.GetOwner(&user);
else
user = hd.name;
homedir_paths_.push_back(fp.Append(user));
user_paths_.push_back(brillo::cryptohome::home::GetHashedUserPath(user));
base::Time t;
CHECK(base::Time::FromUTCExploded(hd.time, &t));
homedir_times_.push_back(t);
}
EXPECT_CALL(platform_, HasExtendedFileAttribute(_, kRemovableFileAttribute))
.WillRepeatedly(Return(false));
}
void TearDown() {
test_helper_.TearDownSystemSalt();
}
void set_policy(bool owner_known,
const std::string& owner,
bool ephemeral_users_enabled,
const std::string& clean_up_strategy) {
policy::MockDevicePolicy* device_policy = new policy::MockDevicePolicy();
EXPECT_CALL(*device_policy, LoadPolicy())
.WillRepeatedly(Return(true));
EXPECT_CALL(*device_policy, GetOwner(_))
.WillRepeatedly(SetOwner(owner_known, owner));
EXPECT_CALL(*device_policy, GetEphemeralUsersEnabled(_))
.WillRepeatedly(SetEphemeralUsersEnabled(ephemeral_users_enabled));
homedirs_.own_policy_provider(new policy::PolicyProvider(
std::unique_ptr<policy::MockDevicePolicy>(device_policy)));
}
// Create an enumerator that will enumerate the given child_directories.
NiceMock<MockFileEnumerator>* CreateFileEnumerator(
const std::vector<FilePath>& child_directories) {
auto* mock = new NiceMock<MockFileEnumerator>;
for (const auto& child : child_directories) {
struct stat stat = {};
mock->entries_.push_back(FileEnumerator::FileInfo(child, stat));
}
return mock;
}
// Sets up expectations for the given tracked directories which belong to the
// same parent directory.
void ExpectTrackedDirectoryEnumeration(
const std::vector<FilePath>& child_directories) {
DCHECK(!child_directories.empty());
FilePath parent_directory = child_directories[0].DirName();
// xattr is used to track directories.
for (const auto& child : child_directories) {
DCHECK_EQ(parent_directory.value(), child.DirName().value());
EXPECT_CALL(platform_, GetExtendedFileAttributeAsString(
child, kTrackedDirectoryNameAttribute, _))
.WillRepeatedly(DoAll(SetArgPointee<2>(child.BaseName().value()),
Return(true)));
EXPECT_CALL(platform_, HasExtendedFileAttribute(
child, kTrackedDirectoryNameAttribute))
.WillRepeatedly(Return(true));
}
// |child_directories| should be enumerated as the parent's children.
auto create_file_enumerator_function = [child_directories]() {
auto* mock = new NiceMock<MockFileEnumerator>;
for (const auto& child : child_directories) {
struct stat stat = {};
mock->entries_.push_back(FileEnumerator::FileInfo(child, stat));
}
return mock;
};
EXPECT_CALL(platform_, GetFileEnumerator(
parent_directory, false, base::FileEnumerator::DIRECTORIES))
.WillRepeatedly(InvokeWithoutArgs(create_file_enumerator_function));
}
// Returns true if the test is running for eCryptfs, false if for dircrypto.
bool ShouldTestEcryptfs() const { return GetParam(); }
protected:
MakeTests test_helper_;
NiceMock<MockPlatform> platform_;
Crypto crypto_;
std::vector<FilePath> homedir_paths_;
std::vector<FilePath> user_paths_;
MockUserOldestActivityTimestampCache timestamp_cache_;
std::vector<base::Time> homedir_times_;
MockVaultKeysetFactory vault_keyset_factory_;
HomeDirs homedirs_;
static const uid_t kAndroidSystemRealUid =
HomeDirs::kAndroidSystemUid + kArcContainerShiftUid;
private:
DISALLOW_COPY_AND_ASSIGN(HomeDirsTest);
};
INSTANTIATE_TEST_CASE_P(WithEcryptfs, HomeDirsTest, ::testing::Values(true));
INSTANTIATE_TEST_CASE_P(WithDircrypto, HomeDirsTest, ::testing::Values(false));
TEST_P(HomeDirsTest, RemoveNonOwnerCryptohomes) {
// Ensure that RemoveNonOwnerCryptohomes does.
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillOnce(
DoAll(SetArgPointee<2>(homedir_paths_),
Return(true)));
FilePath user_prefix = brillo::cryptohome::home::GetUserPathPrefix();
FilePath root_prefix = brillo::cryptohome::home::GetRootPathPrefix();
EXPECT_CALL(platform_, EnumerateDirectoryEntries(user_prefix, _, _))
.WillOnce(Return(true));
EXPECT_CALL(platform_, EnumerateDirectoryEntries(root_prefix, _, _))
.WillOnce(Return(true));
EXPECT_CALL(platform_, DirectoryExists(_))
.WillRepeatedly(Return(true));
EXPECT_CALL(platform_, DirectoryExists(Property(&FilePath::value,
EndsWith(kEcryptfsVaultDir))))
.WillRepeatedly(Return(ShouldTestEcryptfs()));
EXPECT_CALL(platform_, IsDirectoryMounted(_))
.WillRepeatedly(Return(false));
EXPECT_CALL(platform_, DeleteFile(homedir_paths_[0], true))
.WillOnce(Return(true));
EXPECT_CALL(platform_, DeleteFile(homedir_paths_[1], true))
.WillOnce(Return(true));
EXPECT_CALL(platform_, DeleteFile(homedir_paths_[2], true))
.WillOnce(Return(true));
homedirs_.RemoveNonOwnerCryptohomes();
}
TEST_P(HomeDirsTest, RenameCryptohome) {
ASSERT_TRUE(
base::CreateDirectory(FilePath(test_helper_.users[0].base_path)));
ASSERT_TRUE(
base::CreateDirectory(FilePath(test_helper_.users[1].base_path)));
ASSERT_TRUE(
base::CreateDirectory(FilePath(test_helper_.users[2].base_path)));
const char kNewUserId[] = "some_new_user";
EXPECT_TRUE(homedirs_.Rename(kDefaultUsers[0].username, kNewUserId));
// If source directory doesn't exist, assume renamed.
EXPECT_TRUE(homedirs_.Rename(kDefaultUsers[0].username, kNewUserId));
// This should fail as target directory already exists.
EXPECT_FALSE(
homedirs_.Rename(kDefaultUsers[1].username, kDefaultUsers[2].username));
// Rename back.
EXPECT_TRUE(homedirs_.Rename(kNewUserId, kDefaultUsers[0].username));
}
TEST_P(HomeDirsTest, ComputeSize) {
FilePath base_path(test_helper_.users[0].base_path);
FilePath user_path = brillo::cryptohome::home::GetUserPathPrefix()
.Append(test_helper_.users[0].obfuscated_username);
FilePath root_path = brillo::cryptohome::home::GetRootPathPrefix()
.Append(test_helper_.users[0].obfuscated_username);
ASSERT_TRUE(base::CreateDirectory(base_path));
// Put test files under base_path and user_path.
const char kTestFileName0[] = "test.txt";
const char kExpectedData0[] = "file content";
int expected_bytes_0 = arraysize(kExpectedData0);
ASSERT_EQ(expected_bytes_0,
base::WriteFile(base_path.Append(kTestFileName0),
kExpectedData0, expected_bytes_0));
const char kTestFileName1[] = "test1.txt";
const char kExpectedData1[] = "file content";
int expected_bytes_1 = arraysize(kExpectedData1);
ASSERT_EQ(expected_bytes_1,
base::WriteFile(base_path.Append(kTestFileName1),
kExpectedData1, expected_bytes_1));
EXPECT_CALL(platform_, ComputeDirectorySize(base_path))
.WillOnce(Return(expected_bytes_0));
EXPECT_CALL(platform_, ComputeDirectorySize(user_path))
.WillOnce(Return(expected_bytes_1));
EXPECT_CALL(platform_, ComputeDirectorySize(root_path))
.WillOnce(Return(0));
EXPECT_EQ(expected_bytes_0 + expected_bytes_1,
homedirs_.ComputeSize(kDefaultUsers[0].username));
}
TEST_P(HomeDirsTest, ComputeSizeWithNonexistentUser) {
// If the specified user doesn't exist, there is no directory for the user, so
// ComputeSize should return 0.
const char kNonExistentUserId[] = "non_existent_user";
EXPECT_EQ(0, homedirs_.ComputeSize(kNonExistentUserId));
}
TEST_P(HomeDirsTest, GetTrackedDirectoryForDirCrypto) {
Platform real_platform;
// Use real PathExists.
EXPECT_CALL(platform_, FileExists(_)).WillRepeatedly(
Invoke(&real_platform, &Platform::FileExists));
// Use real FileEnumerator.
EXPECT_CALL(platform_, GetFileEnumerator(_, _, _)).WillRepeatedly(
Invoke(&real_platform, &Platform::GetFileEnumerator));
// Use real HasExtendedFileAttribute.
EXPECT_CALL(platform_, HasExtendedFileAttribute(_, _))
.WillRepeatedly(Invoke(&real_platform,
&Platform::HasExtendedFileAttribute));
// Use real GetExtendedFileAttributeAsString.
EXPECT_CALL(platform_, GetExtendedFileAttributeAsString(_, _, _))
.WillRepeatedly(Invoke(&real_platform,
&Platform::GetExtendedFileAttributeAsString));
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
const FilePath mount_dir = temp_dir.GetPath().Append(FilePath(kMountDir));
ASSERT_TRUE(base::CreateDirectory(mount_dir));
const char* const kDirectories[] = {
"aaa",
"bbb",
"bbb/ccc",
"bbb/ccc/ddd",
};
// Prepare directories.
for (const auto& directory : kDirectories) {
const FilePath path = mount_dir.Append(FilePath(directory));
ASSERT_TRUE(base::CreateDirectory(path));
std::string name = path.BaseName().value();
ASSERT_TRUE(real_platform.SetExtendedFileAttribute(
path, kTrackedDirectoryNameAttribute, name.data(), name.length()));
}
// Use GetTrackedDirectoryForDirCrypto() to get the path.
// When dircrypto is being used and we don't have the key, the returned path
// will be encrypted, but here we just get the same path.
for (const auto& directory : kDirectories) {
SCOPED_TRACE(directory);
FilePath result;
EXPECT_TRUE(homedirs_.GetTrackedDirectory(temp_dir.GetPath(),
FilePath(directory), &result));
EXPECT_EQ(mount_dir.Append(FilePath(directory)).value(), result.value());
}
// Return false for unknown directories.
FilePath result;
EXPECT_FALSE(homedirs_.GetTrackedDirectory(
temp_dir.GetPath(), FilePath("zzz"), &result));
EXPECT_FALSE(homedirs_.GetTrackedDirectory(
temp_dir.GetPath(), FilePath("aaa/zzz"), &result));
}
TEST_P(HomeDirsTest, IsFreableDiskSpaceAvaible) {
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillRepeatedly(DoAll(SetArgPointee<2>(homedir_paths_), Return(true)));
std::vector<base::FilePath> home_paths(homedir_paths_.size());
std::vector<bool> is_mounted1(homedir_paths_.size());
std::vector<bool> is_mounted2(homedir_paths_.size(), true);
for (int i = 0; i < homedir_paths_.size(); i++) {
home_paths[i] =
FilePath("/home/user/").Append(homedir_paths_[i].BaseName().value());
EXPECT_CALL(platform_, DirectoryExists(home_paths[i]))
.WillRepeatedly(Return(true));
is_mounted1[i] = i % 2;
}
EXPECT_CALL(platform_, AreDirectoriesMounted(home_paths))
.WillOnce(Return(is_mounted1))
.WillOnce(Return(is_mounted2));
homedirs_.set_enterprise_owned(true);
EXPECT_TRUE(homedirs_.IsFreableDiskSpaceAvaible());
// Does not check dirs as it is not enterprise enrolled
homedirs_.set_enterprise_owned(false);
EXPECT_FALSE(homedirs_.IsFreableDiskSpaceAvaible());
homedirs_.set_enterprise_owned(true);
EXPECT_FALSE(homedirs_.IsFreableDiskSpaceAvaible());
}
TEST_P(HomeDirsTest, GetUnmountedAndroidDataCount) {
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillOnce(DoAll(SetArgPointee<2>(homedir_paths_), Return(true)));
for (const auto& path : homedir_paths_) {
auto homedir_path =
FilePath("/home/user/").Append(path.BaseName().value());
EXPECT_CALL(platform_, DirectoryExists(homedir_path))
.WillRepeatedly(Return(true));
}
if (ShouldTestEcryptfs()) {
// We don't support Ecryptfs.
for (int i = 0; i < homedir_paths_.size(); i++) {
FilePath vault_path = homedir_paths_[i].Append(kEcryptfsVaultDir);
EXPECT_CALL(platform_, DirectoryExists(vault_path))
.WillRepeatedly(Return(true));
}
EXPECT_EQ(0, homedirs_.GetUnmountedAndroidDataCount());
return;
}
// Basic setup.
for (size_t i = 0; i < homedir_paths_.size(); i++) {
// Set up tracked root directory under DirCrypto's home.
FilePath vault_path = homedir_paths_[i].Append(kEcryptfsVaultDir);
EXPECT_CALL(platform_, DirectoryExists(vault_path))
.WillRepeatedly(Return(false));
FilePath mount = homedir_paths_[i].Append(kMountDir);
FilePath root = mount.Append(kRootHomeSuffix);
ExpectTrackedDirectoryEnumeration({root});
}
// Set up a root hierarchy for the encrypted version of homedir_paths_[0]
// (added a suffix _encrypted in the code to mark them encrypted).
// root
// |-android-data
// | |-cache
// | |-data
// |-session_manager
FilePath root = homedir_paths_[0].Append(kMountDir).Append(kRootHomeSuffix);
FilePath android_data = root.Append("android-data_encrypted");
FilePath session_manager = root.Append("session_manager_encrypted");
EXPECT_CALL(platform_,
GetFileEnumerator(root, false, base::FileEnumerator::DIRECTORIES))
.WillOnce(Return(CreateFileEnumerator({android_data, session_manager})));
FilePath data = android_data.Append("data_encrypted");
FilePath cache = android_data.Append("cache_encrypted");
EXPECT_CALL(platform_, GetFileEnumerator(android_data, false,
base::FileEnumerator::DIRECTORIES))
.WillOnce(Return(CreateFileEnumerator({cache, data})));
// This marks dir2 directory under homedir_paths_[0] as android-data by
// assigning System UID as the uid owner of dir4 (dir2's children).
EXPECT_CALL(platform_, GetOwnership(cache, _, _, false))
.WillOnce(DoAll(SetArgPointee<1>(kAndroidSystemRealUid), Return(true)));
// Other homedir_paths_ shouldn't have android-data.
for (size_t i = 1; i < homedir_paths_.size(); i++) {
// Set up a root hierarchy for the encrypted version of homedir_paths
// without android-data (added a suffix _encrypted in the code to mark them
// encrypted).
// root
// |-session_manager
// |-policy
FilePath root = homedir_paths_[i].Append(kMountDir).Append(kRootHomeSuffix);
FilePath session_manager = root.Append("session_manager_encrypted");
EXPECT_CALL(platform_, GetFileEnumerator(root, false,
base::FileEnumerator::DIRECTORIES))
.WillOnce(Return(CreateFileEnumerator({session_manager})));
FilePath policy = session_manager.Append("policy_encrypted");
EXPECT_CALL(platform_, GetFileEnumerator(session_manager, false,
base::FileEnumerator::DIRECTORIES))
.WillOnce(Return(CreateFileEnumerator({policy})));
EXPECT_CALL(platform_, GetOwnership(policy, _, _, false))
.WillOnce(Return(false));
}
// Expect 1 home directory with android-data: homedir_paths_[0].
EXPECT_EQ(1, homedirs_.GetUnmountedAndroidDataCount());
}
class FreeDiskSpaceTest : public HomeDirsTest {
public:
FreeDiskSpaceTest() { }
virtual ~FreeDiskSpaceTest() { }
// Sets up expectaions for tracked directories.
void ExpectTrackedDirectoriesEnumeration() {
if (ShouldTestEcryptfs()) // No expecations needed for eCryptfs.
return;
for (const auto& path : homedir_paths_) {
FilePath mount = path.Append(kMountDir);
FilePath user = mount.Append(kUserHomeSuffix);
FilePath root = mount.Append(kRootHomeSuffix);
FilePath cache = user.Append(kCacheDir);
FilePath gcache = user.Append(kGCacheDir);
FilePath gcache_version1 = gcache.Append(kGCacheVersion1Dir);
FilePath gcache_version2 = gcache.Append(kGCacheVersion2Dir);
FilePath gcache_tmp = gcache_version1.Append(kGCacheTmpDir);
ExpectTrackedDirectoryEnumeration({user, root});
ExpectTrackedDirectoryEnumeration({cache, gcache});
ExpectTrackedDirectoryEnumeration({gcache_version1, gcache_version2});
ExpectTrackedDirectoryEnumeration({gcache_tmp});
}
}
// The first half of HomeDirs::FreeDiskSpace does a purge of the Cache and
// GCached dirs. Unless these are being explicitly tested, we want these to
// always succeed for every test. Set those expectations here for the given
// number of unmounted user directories (mounted dirs aren't processed by
// the code under test).
void ExpectCacheDirCleanupCalls(int user_count) {
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillRepeatedly(
DoAll(SetArgPointee<2>(homedir_paths_),
Return(true)));
EXPECT_CALL(platform_, AmountOfFreeDiskSpace(kTestRoot))
.Times(4).WillRepeatedly(Return(0))
.RetiresOnSaturation();
EXPECT_CALL(platform_, DirectoryExists(_))
.WillRepeatedly(Return(true));
EXPECT_CALL(platform_, DirectoryExists(Property(
&FilePath::value, EndsWith(kEcryptfsVaultDir))))
.WillRepeatedly(Return(ShouldTestEcryptfs()));
// N users * (1 Cache dir + 1 GCache tmp dir)
EXPECT_CALL(platform_, GetFileEnumerator(_, false, _))
.Times(user_count * 2)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
// N users * (2 GCache files dir + 1 Android cache dir)
EXPECT_CALL(platform_, GetFileEnumerator(_, true, _))
.Times(user_count * 3)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
ExpectTrackedDirectoriesEnumeration();
}
// Whenever a user is removed, its shadow directory is searched for LE
// credentials so that they can be removed from the LE backend as well.
void ExpectDeletedLECredentialEnumeration(
const base::FilePath& homedir_path) {
EXPECT_CALL(platform_,
GetFileEnumerator(homedirs_.shadow_root().Append(
homedir_path.BaseName().value()),
false, _))
.WillOnce(InvokeWithoutArgs(CreateMockFileEnumerator));
}
};
INSTANTIATE_TEST_CASE_P(WithEcryptfs, FreeDiskSpaceTest,
::testing::Values(true));
INSTANTIATE_TEST_CASE_P(WithDircrypto, FreeDiskSpaceTest,
::testing::Values(false));
TEST_P(FreeDiskSpaceTest, InitializeTimeCacheWithNoTime) {
// To get to the init logic, we need to fail
// |kTargetFreeSpaceAfterCleanup| checks.
EXPECT_CALL(platform_, AmountOfFreeDiskSpace(kTestRoot))
.WillRepeatedly(Return(0));
// Expect cache clean ups.
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillRepeatedly(
DoAll(SetArgPointee<2>(homedir_paths_),
Return(true)));
EXPECT_CALL(platform_, DirectoryExists(_))
.WillRepeatedly(Return(true));
EXPECT_CALL(platform_, DirectoryExists(Property(&FilePath::value,
EndsWith(kEcryptfsVaultDir))))
.WillRepeatedly(Return(ShouldTestEcryptfs()));
// The master.* enumerators (wildcard matcher first)
EXPECT_CALL(platform_, GetFileEnumerator(_, false, _))
.Times(4).WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
// Empty enumerators per-user per-cache dirs plus
// enumerators for empty vaults.
EXPECT_CALL(platform_, GetFileEnumerator(
Property(&FilePath::value, HasSubstr("user/Cache")),
false, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(platform_, GetFileEnumerator(
Property(&FilePath::value, EndsWith("user/GCache/v1/tmp")),
false, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(platform_, GetFileEnumerator(
Property(&FilePath::value, EndsWith("user/GCache/v1")),
true, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(platform_, GetFileEnumerator(Property(&FilePath::value,
EndsWith("user/GCache/v2")),
true, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(
platform_,
GetFileEnumerator(
Property(&FilePath::value,
EndsWith(std::string(ShouldTestEcryptfs() ? kEcryptfsVaultDir
: kMountDir) +
"/root")),
true, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
ExpectTrackedDirectoriesEnumeration();
// Now cover the actual initialization piece
EXPECT_CALL(timestamp_cache_, initialized())
.WillOnce(Return(false));
EXPECT_CALL(timestamp_cache_, Initialize())
.Times(1);
// It then walks the user vault to populate.
MockVaultKeyset* vk[arraysize(kHomedirs)];
EXPECT_CALL(vault_keyset_factory_, New(_, _))
.WillOnce(Return(vk[0] = new MockVaultKeyset()))
.WillOnce(Return(vk[1] = new MockVaultKeyset()))
.WillOnce(Return(vk[2] = new MockVaultKeyset()))
.WillOnce(Return(vk[3] = new MockVaultKeyset()));
for (size_t i = 0; i < arraysize(vk); ++i) {
EXPECT_CALL(*vk[i], Load(_))
.WillRepeatedly(Return(false));
}
homedirs_.set_vault_keyset_factory(&vault_keyset_factory_);
// Expect an addition for all users with no time.
EXPECT_CALL(timestamp_cache_, AddExistingUserNotime(_))
.Times(4);
// Now skip the deletion steps by not having a legit owner.
set_policy(false, "", false, "");
homedirs_.FreeDiskSpace();
// Could not delete user, so it doesn't have enough space yet.
EXPECT_FALSE(homedirs_.HasTargetFreeSpace());
}
TEST_P(FreeDiskSpaceTest, InitializeTimeCacheWithOneTime) {
// To get to the init logic, we need to fail five
// |kTargetFreeSpaceAfterCleanup| checks.
EXPECT_CALL(platform_, AmountOfFreeDiskSpace(kTestRoot))
.WillRepeatedly(Return(0));
// Expect cache clean ups.
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillRepeatedly(
DoAll(SetArgPointee<2>(homedir_paths_),
Return(true)));
EXPECT_CALL(platform_, DirectoryExists(_))
.WillRepeatedly(Return(true));
EXPECT_CALL(platform_, DirectoryExists(Property(&FilePath::value,
EndsWith(kEcryptfsVaultDir))))
.WillRepeatedly(Return(ShouldTestEcryptfs()));
// The master.* enumerators (wildcard matcher first)
EXPECT_CALL(platform_, GetFileEnumerator(_, false, _))
.Times(3).WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
// Empty enumerators per-user per-cache dirs plus
// enumerators for empty vaults.
EXPECT_CALL(platform_,
GetFileEnumerator(
Property(&FilePath::value, HasSubstr("user/Cache")),
false, _))
.Times(4).WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(platform_,
GetFileEnumerator(
Property(&FilePath::value, EndsWith("user/GCache/v1/tmp")),
false, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(
platform_,
GetFileEnumerator(
Property(&FilePath::value,
EndsWith(std::string(ShouldTestEcryptfs() ? kEcryptfsVaultDir
: kMountDir) +
"/user/GCache/v1")),
true, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(
platform_,
GetFileEnumerator(
Property(&FilePath::value,
EndsWith(std::string(ShouldTestEcryptfs() ? kEcryptfsVaultDir
: kMountDir) +
"/user/GCache/v2")),
true, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(
platform_,
GetFileEnumerator(
Property(&FilePath::value,
EndsWith(std::string(ShouldTestEcryptfs() ? kEcryptfsVaultDir
: kMountDir) +
"/root")),
true, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
ExpectTrackedDirectoriesEnumeration();
// Now cover the actual initialization piece
EXPECT_CALL(timestamp_cache_, initialized())
.WillOnce(Return(false));
EXPECT_CALL(timestamp_cache_, Initialize())
.Times(1);
// Skip vault keyset loading to cause "Notime".
EXPECT_CALL(platform_,
FileExists(
Property(&FilePath::value, StartsWith(homedir_paths_[0].value()))))
.WillRepeatedly(Return(true));
MockVaultKeyset* vk[arraysize(kHomedirs)];
EXPECT_CALL(vault_keyset_factory_, New(_, _))
.WillOnce(Return(vk[0] = new MockVaultKeyset()))
.WillOnce(Return(vk[1] = new MockVaultKeyset()))
.WillOnce(Return(vk[2] = new MockVaultKeyset()))
.WillOnce(Return(vk[3] = new MockVaultKeyset()));
// The first three will have no time.
size_t i;
for (i = 0; i < arraysize(vk) - 1; ++i) {
EXPECT_CALL(*vk[i], Load(_))
.WillRepeatedly(Return(false));
}
// Owner will have a master.0
NiceMock<MockFileEnumerator> *master0;
EXPECT_CALL(platform_, GetFileEnumerator(homedir_paths_[3], false, _))
.WillOnce(Return(master0 = new NiceMock<MockFileEnumerator>));
EXPECT_CALL(*master0, Next())
.WillOnce(Return(homedir_paths_[3].Append(kKeyFile).AddExtension("0")))
.WillRepeatedly(Return(FilePath()));
// The owner will have a time.
EXPECT_CALL(*vk[i], Load(_))
.WillOnce(Return(true));
SerializedVaultKeyset serialized;
serialized.set_last_activity_timestamp(homedir_times_[3].ToInternalValue());
EXPECT_CALL(*vk[i], serialized())
.Times(2)
.WillRepeatedly(ReturnRef(serialized));
homedirs_.set_vault_keyset_factory(&vault_keyset_factory_);
// Expect an addition for all users with no time.
EXPECT_CALL(timestamp_cache_, AddExistingUserNotime(_))
.Times(3);
// Adding the owner
EXPECT_CALL(timestamp_cache_,
AddExistingUser(homedir_paths_[3], homedir_times_[3]))
.Times(1);
// Now skip the deletion steps by not having a legit owner.
set_policy(false, "", false, "");
homedirs_.FreeDiskSpace();
// Could not delete user, so it doesn't have enough space yet.
EXPECT_FALSE(homedirs_.HasTargetFreeSpace());
}
TEST_P(FreeDiskSpaceTest, NoCacheCleanup) {
// Pretend we have lots of free space
EXPECT_CALL(platform_, AmountOfFreeDiskSpace(kTestRoot))
.WillRepeatedly(Return(kTargetFreeSpaceAfterCleanup + 1));
homedirs_.FreeDiskSpace();
EXPECT_TRUE(homedirs_.HasTargetFreeSpace());
}
TEST_P(FreeDiskSpaceTest, OnlyCacheCleanup) {
// Only clean up the Cache data. Not GCache, etc.
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillRepeatedly(
DoAll(SetArgPointee<2>(homedir_paths_),
Return(true)));
EXPECT_CALL(platform_, AmountOfFreeDiskSpace(kTestRoot))
.WillOnce(Return(0))
.WillRepeatedly(Return(kTargetFreeSpaceAfterCleanup + 1));
EXPECT_CALL(platform_, DirectoryExists(_))
.WillRepeatedly(Return(true));
EXPECT_CALL(platform_, DirectoryExists(Property(&FilePath::value,
EndsWith(kEcryptfsVaultDir))))
.WillRepeatedly(Return(ShouldTestEcryptfs()));
// Empty enumerators per-user per-cache dirs
NiceMock<MockFileEnumerator>* fe[arraysize(kHomedirs)];
EXPECT_CALL(platform_, GetFileEnumerator(_, false, _))
.WillOnce(Return(fe[0] = new NiceMock<MockFileEnumerator>))
.WillOnce(Return(fe[1] = new NiceMock<MockFileEnumerator>))
.WillOnce(Return(fe[2] = new NiceMock<MockFileEnumerator>))
.WillOnce(Return(fe[3] = new NiceMock<MockFileEnumerator>));
// Exercise the delete file path.
for (size_t f = 0; f < arraysize(fe); ++f) {
EXPECT_CALL(*fe[f], Next())
.WillOnce(Return(homedir_paths_[f].Append("Cache/foo")))
.WillRepeatedly(Return(FilePath()));
}
EXPECT_CALL(platform_,
DeleteFile(
Property(&FilePath::value, EndsWith("/Cache/foo")),
true))
.Times(4)
.WillRepeatedly(Return(true));
ExpectTrackedDirectoriesEnumeration();
homedirs_.FreeDiskSpace();
EXPECT_TRUE(homedirs_.HasTargetFreeSpace());
}
TEST_P(FreeDiskSpaceTest, GCacheCleanup) {
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillRepeatedly(
DoAll(SetArgPointee<2>(homedir_paths_),
Return(true)));
EXPECT_CALL(platform_, AmountOfFreeDiskSpace(kTestRoot))
.WillOnce(Return(0))
.WillOnce(Return(0))
.WillRepeatedly(Return(kTargetFreeSpaceAfterCleanup + 1));
EXPECT_CALL(platform_, DirectoryExists(_))
.WillRepeatedly(Return(true));
EXPECT_CALL(platform_, DirectoryExists(Property(&FilePath::value,
EndsWith(kEcryptfsVaultDir))))
.WillRepeatedly(Return(ShouldTestEcryptfs()));
// Empty enumerators per-user per-cache dirs
EXPECT_CALL(platform_,
GetFileEnumerator(
Property(&FilePath::value, EndsWith("/Cache")),
false, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(platform_,
GetFileEnumerator(
Property(&FilePath::value, EndsWith("/GCache/v1/tmp")),
false, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
// Irrelevant directory without +d file attribute.
EXPECT_CALL(platform_, HasNoDumpFileAttribute(Property(
&FilePath::value, EndsWith("irrelevant_dir"))))
.WillRepeatedly(Return(false));
// Enumerate user 0, do nothing for users 1-3.
NiceMock<MockFileEnumerator>* fe_v1_2 = new NiceMock<MockFileEnumerator>;
NiceMock<MockFileEnumerator>* fe_v2_2 = new NiceMock<MockFileEnumerator>;
// The cache directory contains removable (having +d) and unremovable files.
EXPECT_CALL(platform_, GetFileEnumerator(
Property(&FilePath::value, EndsWith("GCache/v1")),
true, base::FileEnumerator::FILES))
.WillOnce(Return(fe_v1_2))
.WillOnce(InvokeWithoutArgs(CreateMockFileEnumerator))
.WillOnce(InvokeWithoutArgs(CreateMockFileEnumerator))
.WillOnce(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(platform_, GetFileEnumerator(
Property(&FilePath::value, EndsWith("GCache/v2")),
true, base::FileEnumerator::FILES))
.WillOnce(Return(fe_v2_2))
.WillOnce(InvokeWithoutArgs(CreateMockFileEnumerator))
.WillOnce(InvokeWithoutArgs(CreateMockFileEnumerator))
.WillOnce(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(*fe_v1_2, Next())
.WillOnce(Return(homedir_paths_[0].Append("GCache/v1/files/removable")))
.WillOnce(Return(homedir_paths_[0].Append("GCache/v1/files/unremovable")))
.WillRepeatedly(Return(FilePath()));
EXPECT_CALL(platform_,
HasNoDumpFileAttribute(
Property(&FilePath::value,
EndsWith("GCache/v1/files/removable"))))
.WillOnce(Return(true));
EXPECT_CALL(platform_,
HasNoDumpFileAttribute(
Property(&FilePath::value,
EndsWith("GCache/v1/files/unremovable"))))
.WillOnce(Return(false));
EXPECT_CALL(*fe_v2_2, Next())
.WillOnce(Return(homedir_paths_[0].Append("GCache/v2/foobar/removable")))
.WillOnce(
Return(homedir_paths_[0].Append("GCache/v2/foobar/unremovable")))
.WillRepeatedly(Return(FilePath()));
EXPECT_CALL(platform_,
HasNoDumpFileAttribute(Property(
&FilePath::value, EndsWith("GCache/v2/foobar/removable"))))
.WillOnce(Return(true));
EXPECT_CALL(platform_,
HasNoDumpFileAttribute(Property(
&FilePath::value, EndsWith("GCache/v2/foobar/unremovable"))))
.WillOnce(Return(false));
ExpectTrackedDirectoriesEnumeration();
// Confirm removable file is removed.
EXPECT_CALL(platform_,
DeleteFile(
Property(&FilePath::value,
EndsWith("/GCache/v1/files/removable")),
_))
.WillOnce(Return(true));
EXPECT_CALL(platform_,
DeleteFile(Property(&FilePath::value,
EndsWith("/GCache/v2/foobar/removable")),
_))
.WillOnce(Return(true));
homedirs_.FreeDiskSpace();
EXPECT_TRUE(homedirs_.HasTargetFreeSpace());
}
TEST_P(FreeDiskSpaceTest, CacheAndGCacheCleanup) {
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))
.WillRepeatedly(
DoAll(SetArgPointee<2>(homedir_paths_),
Return(true)));
EXPECT_CALL(platform_, AmountOfFreeDiskSpace(kTestRoot))
.WillOnce(Return(0)) // Before cleanup
.WillOnce(Return(0)) // After removing cache
.WillRepeatedly( // After removing gcache
Return(kFreeSpaceThresholdToTriggerAggressiveCleanup + 1));
EXPECT_CALL(platform_, DirectoryExists(_))
.WillRepeatedly(Return(true));
EXPECT_CALL(platform_, DirectoryExists(Property(&FilePath::value,
EndsWith(kEcryptfsVaultDir))))
.WillRepeatedly(Return(ShouldTestEcryptfs()));
// Skip per-cache and Cache enumerations done per user in order to
// test cache and GCache deletion.
EXPECT_CALL(platform_, GetFileEnumerator(
Property(&FilePath::value, EndsWith("/user/Cache")),
false, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
// DeleteGCacheTmpCallback enumerate all GCache directories to find removable
// files.
EXPECT_CALL(
platform_,
GetFileEnumerator(
Property(&FilePath::value,
EndsWith(std::string(ShouldTestEcryptfs() ? kEcryptfsVaultDir
: kMountDir) +
"/user/GCache/v1")),
true, base::FileEnumerator::FILES))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(
platform_,
GetFileEnumerator(
Property(&FilePath::value,
EndsWith(std::string(ShouldTestEcryptfs() ? kEcryptfsVaultDir
: kMountDir) +
"/user/GCache/v2")),
true, base::FileEnumerator::FILES))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
EXPECT_CALL(platform_, GetFileEnumerator(
Property(&FilePath::value, EndsWith("user/GCache/v1/tmp")),
false, _))
.Times(4)
.WillRepeatedly(InvokeWithoutArgs(CreateMockFileEnumerator));
// Should not attempt to remove Android cache. (by getting enumerator first)
EXPECT_CALL(
platform_,
GetFileEnumerator(
Property(&FilePath::value,
EndsWith(std::string(ShouldTestEcryptfs() ? kEcryptfsVaultDir
: kMountDir) +
"/root")),
true, _))
.Times(0);
ExpectTrackedDirectoriesEnumeration();
homedirs_.FreeDiskSpace();
// Should finish cleaning up because the free space size exceeds
// |kFreeSpaceThresholdToTriggerAggressiveCleanup| after deleting gcache,
// although it's still below |kTargetFreeSpaceAfterCleanup|.
EXPECT_FALSE(homedirs_.HasTargetFreeSpace());
}
TEST_P(FreeDiskSpaceTest, CacheAndGCacheAndAndroidCleanup) {
EXPECT_CALL(platform_, EnumerateDirectoryEntries(kTestRoot, false, _))