1 # Copyright (c) 2017 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 5 """Library to run xfstests in autotest. 6 7 """ 8 9 import os 10 from autotest_lib.client.bin import partition 11 12 class xfstests_env: 13 """ 14 Setup the environment for running xfstests. 15 """ 16 XFS_MOUNT_PATH = '/mnt/stateful_partition/unencrypted/cache' 17 18 env_names={} 19 env_partition={} 20 env_vp={} 21 env_device={} 22 fs_types={} 23 24 def setup_partitions(self, job, fs_types, crypto=False, 25 env_names=['TEST', 'SCRATCH']): 26 """ 27 xfttests needs 2 partitions: TEST and SCRATCH. 28 - TEST_DEV: "device containing TEST PARTITION" 29 - TEST_DIR: "mount point of TEST PARTITION" 30 - SCRATCH_DEV "device containing SCRATCH PARTITION" 31 - SCRATCH_MNT "mount point for SCRATCH PARTITION" 32 33 - SCRATCH_DIR "directory on a large partition" 34 35 @param job: The job object. 36 """ 37 38 self.env_names = env_names 39 self.fs_types = fs_types 40 for name in self.env_names: 41 file_name = 'xfstests_%s' % name 42 file_img = os.path.join( 43 self.XFS_MOUNT_PATH, '%s.img' % file_name) 44 self.env_vp[name] = partition.virtual_partition( 45 file_img=file_img, file_size=4096) 46 self.env_device[name] = self.env_vp[name].device 47 48 # You can use real block devices, such as /dev/sdc1 by populating 49 # env_device directly, but going through the virtual partition 50 # object. 51 52 # By default, we create a directory under autotest 53 mountpoint = os.path.join(job.tmpdir, file_name) 54 if not os.path.isdir(mountpoint): 55 os.makedirs(mountpoint) 56 57 self.env_partition[name] = job.partition( 58 device=self.env_device[name], mountpoint=mountpoint) 59 60 # 61 # Job configuration, instead of editing xfstests config files, set them 62 # right here as environment variables 63 # 64 for name in self.env_names: 65 os.environ['%s_DEV' % name] = self.env_partition[name].device 66 67 test_dir = self.env_partition['TEST'].mountpoint 68 69 os.environ['TEST_DIR'] = test_dir 70 os.environ['SCRATCH_MNT'] = self.env_partition['SCRATCH'].mountpoint 71 os.environ['SCRATCH_DIR'] = self.XFS_MOUNT_PATH 72 73 # ChromeOS does not need special option when SELinux is enabled. 74 os.environ['SELINUX_MOUNT_OPTIONS'] = ' ' 75 76 mkfs_args = '' 77 mnt_options = '' 78 if crypto: 79 mkfs_args += '-O encrypt' 80 mnt_options += '-o test_dummy_encryption' 81 82 for fs_type in self.fs_types: 83 for name in self.env_names: 84 self.env_partition[name].mkfs(fstype=fs_type, args=mkfs_args) 85 86 os.environ['EXT_MOUNT_OPTIONS'] = mnt_options 87 88 def unmount_partitions(self): 89 """ 90 Unmount the partition created. 91 """ 92 for name in self.env_names: 93 self.env_partition[name].unmount(ignore_status=True) 94 self.env_vp[name].destroy() 95
