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1# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5import logging, os, shutil, tempfile
6from autotest_lib.client.bin import fio_util, test, utils
7from autotest_lib.client.common_lib import error
8from autotest_lib.client.cros import cryptohome
9
10TEST_USER = 'test@chromium.org'
11TEST_PASSWORD = 'test'
12
13class platform_CryptohomeFio(test.test):
14    """Run FIO in the crypto partition."""
15
16    version = 2
17
18    USE_CRYPTO = 'crypto'
19    USE_PLAIN = 'plain'
20    USE_TMPFS = 'tmpfs'
21    DISK_CONFIG_KEYS = [ USE_CRYPTO, USE_PLAIN, USE_TMPFS ]
22
23    def initialize(self, from_internal_disk_only=True):
24        """ Check that we are running on the fixed device"""
25        if from_internal_disk_only and not utils.is_booted_from_internal_disk():
26            raise error.TestNAError('Test only on internal disk')
27
28    def run_once(self, runtime, disk_configs,
29                 script=None, sysctls_list=None):
30        """
31        Create a 300MB file in tmpfs/encrypted/unencrypted location
32        and run fio tesst.
33
34        @param disk_configs: list of keys from DISK_CONFIG_KEYS.
35        @param script: fio script to run
36        @param sysctls_list: list of dictionary of sysctls to alter.
37        """
38        if not set(disk_configs).issubset(set(self.DISK_CONFIG_KEYS)):
39            raise error.TestFail('Unknown keys in disk config')
40        for config in disk_configs:
41            for sysctls in sysctls_list or [ {} ]:
42
43                graph_descr = ''
44                for key, val in sysctls.iteritems():
45                    utils.sysctl(key, val)
46                    graph_descr += '-'.join([os.path.basename(key), str(val)])
47                # Mount a test cryptohome vault.
48                if config == self.USE_CRYPTO:
49                    cryptohome.mount_vault(TEST_USER, TEST_PASSWORD,
50                                           create=True)
51                    tmpdir = cryptohome.user_path(TEST_USER)
52                elif config == self.USE_TMPFS:
53                    tmpdir = None
54                else:
55                    tmpdir = self.tmpdir
56                self.__work_dir = tempfile.mkdtemp(dir=tmpdir)
57
58                results = {}
59                # TODO make these parameters to run_once & check disk for space.
60                self.__filesize = '300m'
61                self.__runtime = str(runtime)
62                env_vars = ' '.join(
63                    ['FILENAME=' + os.path.join(self.__work_dir, script),
64                     'FILESIZE=' + self.__filesize,
65                     'RUN_TIME=' + self.__runtime
66                     ])
67                job_file = os.path.join(self.bindir, script)
68                results.update(fio_util.fio_runner(self, job_file, env_vars,
69                    name_prefix=graph_descr + config))
70                self.write_perf_keyval(results)
71
72
73                logging.info('Finished with FS stress, cleaning up.')
74                if config == self.USE_CRYPTO:
75                    cryptohome.unmount_vault(TEST_USER)
76                    cryptohome.remove_vault(TEST_USER)
77                else:
78                    shutil.rmtree(self.__work_dir)
79