installd: parameterize user data snapshots with snapshot_id
- snapshot_id will be provided by RollbackManagerService and for a given
rollback will be equal to its rollback_id.
- snapshotAppData now creates a folder to snapshot data to, in case it
does not exist.
- removed ceDataInode from restoreAppDataSnapshot API, since it's only
called if users phone is unlocked, meaning that CE data is available and
doesn't require inode to be accessed.
- refactored installd_service_test to reduce test set up boilerplate.
- added a test to cover case when snapshots for different packages have
the same snapshot_id.
Bug: 124029909
Test: installd_utils_test installd_service_test, RollbackTest
Change-Id: I4177a44a60cdfdc5429a28c613ce661b24482b8b
diff --git a/cmds/installd/tests/installd_utils_test.cpp b/cmds/installd/tests/installd_utils_test.cpp
index 1782aa2..e61eb6e 100644
--- a/cmds/installd/tests/installd_utils_test.cpp
+++ b/cmds/installd/tests/installd_utils_test.cpp
@@ -546,56 +546,86 @@
}
TEST_F(UtilsTest, TestRollbackPaths) {
- EXPECT_EQ("/data/misc_ce/0/rollback/com.foo",
- create_data_misc_ce_rollback_package_path(nullptr, 0, "com.foo"));
- EXPECT_EQ("/data/misc_ce/10/rollback/com.foo",
- create_data_misc_ce_rollback_package_path(nullptr, 10, "com.foo"));
+ EXPECT_EQ("/data/misc_ce/0/rollback/239/com.foo",
+ create_data_misc_ce_rollback_package_path(nullptr, 0, 239, "com.foo"));
+ EXPECT_EQ("/data/misc_ce/10/rollback/37/com.foo",
+ create_data_misc_ce_rollback_package_path(nullptr, 10, 37, "com.foo"));
- EXPECT_EQ("/data/misc_de/0/rollback/com.foo",
- create_data_misc_de_rollback_package_path(nullptr, 0, "com.foo"));
- EXPECT_EQ("/data/misc_de/10/rollback/com.foo",
- create_data_misc_de_rollback_package_path(nullptr, 10, "com.foo"));
+ EXPECT_EQ("/data/misc_de/0/rollback/73/com.foo",
+ create_data_misc_de_rollback_package_path(nullptr, 0, 73, "com.foo"));
+ EXPECT_EQ("/data/misc_de/10/rollback/13/com.foo",
+ create_data_misc_de_rollback_package_path(nullptr, 10, 13, "com.foo"));
- EXPECT_EQ("/data/misc_ce/0/rollback",
- create_data_misc_ce_rollback_path(nullptr, 0));
- EXPECT_EQ("/data/misc_ce/10/rollback",
- create_data_misc_ce_rollback_path(nullptr, 10));
+ EXPECT_EQ("/data/misc_ce/0/rollback/57",
+ create_data_misc_ce_rollback_path(nullptr, 0, 57));
+ EXPECT_EQ("/data/misc_ce/10/rollback/1543",
+ create_data_misc_ce_rollback_path(nullptr, 10, 1543));
- EXPECT_EQ("/data/misc_de/0/rollback",
- create_data_misc_de_rollback_path(nullptr, 0));
- EXPECT_EQ("/data/misc_de/10/rollback",
- create_data_misc_de_rollback_path(nullptr, 10));
+ EXPECT_EQ("/data/misc_de/0/rollback/43",
+ create_data_misc_de_rollback_path(nullptr, 0, 43));
+ EXPECT_EQ("/data/misc_de/10/rollback/41",
+ create_data_misc_de_rollback_path(nullptr, 10, 41));
- EXPECT_EQ("/data/misc_ce/0/rollback/com.foo",
- create_data_misc_ce_rollback_package_path(nullptr, 0, "com.foo", 0));
- EXPECT_EQ("/data/misc_ce/0/rollback/com.foo",
- create_data_misc_ce_rollback_package_path(nullptr, 0, "com.foo", 239));
+ EXPECT_EQ("/data/misc_ce/0/rollback/17/com.foo",
+ create_data_misc_ce_rollback_package_path(nullptr, 0, 17, "com.foo", 0));
+ EXPECT_EQ("/data/misc_ce/0/rollback/19/com.foo",
+ create_data_misc_ce_rollback_package_path(nullptr, 0, 19, "com.foo", 239));
- auto rollback_ce_package_path = create_data_misc_ce_rollback_package_path(nullptr, 0, "com.foo");
- auto deleter = [&rollback_ce_package_path]() {
- delete_dir_contents_and_dir(rollback_ce_package_path, true /* ignore_if_missing */);
+ auto rollback_ce_path = create_data_misc_ce_rollback_path(nullptr, 0, 53);
+ auto rollback_ce_package_path = create_data_misc_ce_rollback_package_path(nullptr, 0, 53,
+ "com.foo");
+ auto deleter = [&rollback_ce_path]() {
+ delete_dir_contents_and_dir(rollback_ce_path, true /* ignore_if_missing */);
};
auto scope_guard = android::base::make_scope_guard(deleter);
- ASSERT_NE(-1, mkdir(rollback_ce_package_path.c_str(), 700));
+ EXPECT_NE(-1, mkdir(rollback_ce_path.c_str(), 700));
+ EXPECT_NE(-1, mkdir(rollback_ce_package_path.c_str(), 700));
ino_t ce_data_inode;
- ASSERT_EQ(0, get_path_inode(rollback_ce_package_path, &ce_data_inode));
+ EXPECT_EQ(0, get_path_inode(rollback_ce_package_path, &ce_data_inode));
- EXPECT_EQ("/data/misc_ce/0/rollback/com.foo",
- create_data_misc_ce_rollback_package_path(nullptr, 0, "com.foo", ce_data_inode));
+ EXPECT_EQ("/data/misc_ce/0/rollback/53/com.foo",
+ create_data_misc_ce_rollback_package_path(nullptr, 0, 53, "com.foo", ce_data_inode));
// Check that path defined by inode is picked even if it's not the same as
// the fallback one.
- EXPECT_EQ("/data/misc_ce/0/rollback/com.foo",
- create_data_misc_ce_rollback_package_path(nullptr, 0, "com.bar", ce_data_inode));
+ EXPECT_EQ("/data/misc_ce/0/rollback/53/com.foo",
+ create_data_misc_ce_rollback_package_path(nullptr, 0, 53, "com.bar", ce_data_inode));
// These last couple of cases are never exercised in production because we
// only snapshot apps in the primary data partition. Exercise them here for
// the sake of completeness.
- EXPECT_EQ("/mnt/expand/57f8f4bc-abf4-655f-bf67-946fc0f9f25b/misc_ce/0/rollback/com.example",
- create_data_misc_ce_rollback_package_path("57f8f4bc-abf4-655f-bf67-946fc0f9f25b", 0, "com.example"));
- EXPECT_EQ("/mnt/expand/57f8f4bc-abf4-655f-bf67-946fc0f9f25b/misc_de/0/rollback/com.example",
- create_data_misc_de_rollback_package_path("57f8f4bc-abf4-655f-bf67-946fc0f9f25b", 0, "com.example"));
+ EXPECT_EQ("/mnt/expand/57f8f4bc-abf4-655f-bf67-946fc0f9f25b/misc_ce/0/rollback/7/com.example",
+ create_data_misc_ce_rollback_package_path("57f8f4bc-abf4-655f-bf67-946fc0f9f25b", 0, 7,
+ "com.example"));
+ EXPECT_EQ("/mnt/expand/57f8f4bc-abf4-655f-bf67-946fc0f9f25b/misc_de/0/rollback/11/com.example",
+ create_data_misc_de_rollback_package_path("57f8f4bc-abf4-655f-bf67-946fc0f9f25b", 0, 11,
+ "com.example"));
+}
+
+TEST_F(UtilsTest, TestCreateDirIfNeeded) {
+ system("mkdir -p /data/local/tmp/user/0");
+
+ auto deleter = [&]() {
+ delete_dir_contents_and_dir("/data/local/tmp/user/0", true /* ignore_if_missing */);
+ };
+ auto scope_guard = android::base::make_scope_guard(deleter);
+
+ // Create folder and check it's permissions.
+ ASSERT_EQ(0, create_dir_if_needed("/data/local/tmp/user/0/foo", 0700));
+ struct stat st;
+ ASSERT_EQ(0, stat("/data/local/tmp/user/0/foo", &st));
+ ASSERT_EQ(0700, st.st_mode & ALLPERMS);
+
+ // Check that create_dir_if_needed is no-op if folder already exists with
+ // correct permissions.
+ ASSERT_EQ(0, create_dir_if_needed("/data/local/tmp/user/0/foo", 0700));
+
+ // Check -1 is returned if folder exists but with different permissions.
+ ASSERT_EQ(-1, create_dir_if_needed("/data/local/tmp/user/0/foo", 0750));
+
+ // Check that call fails if parent doesn't exist.
+ ASSERT_NE(0, create_dir_if_needed("/data/local/tmp/user/0/bar/baz", 0700));
}
} // namespace installd