mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-22 03:03:05 +00:00
99f5303c8b
Some filesystem tests are failing when their image is prepared with
guestmount, but succeeding if loop mounts are used instead. The reason
seems to be a race condition the guestmount(1) manual page explains:
When guestunmount(1)/fusermount(1) exits, guestmount may still be
running and cleaning up the mountpoint. The disk image will not be
fully finalized.
This means that scripts like the following have a nasty race condition:
guestmount -a disk.img -i /mnt
# copy things into /mnt
guestunmount /mnt
# immediately try to use 'disk.img' ** UNSAFE **
The solution is to use the --pid-file option to write the guestmount
PID to a file, then after guestunmount spin waiting for this PID to
exit.
The Python standard library has an os.waitpid() function for waiting a
child to terminate, but it cannot wait on non-child processes. Implement
a utility function that can do this by polling the process repeatedly
for a given duration, optionally killing the process if it won't
terminate on its own. Apply the suggested solution with this utility
function, which makes the failing tests succeed again.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
672 lines
21 KiB
Python
672 lines
21 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2018, Linaro Limited
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# Author: Takahiro Akashi <takahiro.akashi@linaro.org>
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import os
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import os.path
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import pytest
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import re
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from subprocess import call, check_call, check_output, CalledProcessError
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from fstest_defs import *
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import u_boot_utils as util
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supported_fs_basic = ['fat16', 'fat32', 'ext4']
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supported_fs_ext = ['fat16', 'fat32']
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supported_fs_mkdir = ['fat16', 'fat32']
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supported_fs_unlink = ['fat16', 'fat32']
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supported_fs_symlink = ['ext4']
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#
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# Filesystem test specific setup
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#
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def pytest_addoption(parser):
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"""Enable --fs-type option.
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See pytest_configure() about how it works.
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Args:
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parser: Pytest command-line parser.
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Returns:
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Nothing.
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"""
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parser.addoption('--fs-type', action='append', default=None,
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help='Targeting Filesystem Types')
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def pytest_configure(config):
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"""Restrict a file system(s) to be tested.
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A file system explicitly named with --fs-type option is selected
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if it belongs to a default supported_fs_xxx list.
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Multiple options can be specified.
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Args:
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config: Pytest configuration.
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Returns:
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Nothing.
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"""
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global supported_fs_basic
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global supported_fs_ext
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global supported_fs_mkdir
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global supported_fs_unlink
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global supported_fs_symlink
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def intersect(listA, listB):
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return [x for x in listA if x in listB]
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supported_fs = config.getoption('fs_type')
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if supported_fs:
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print('*** FS TYPE modified: %s' % supported_fs)
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supported_fs_basic = intersect(supported_fs, supported_fs_basic)
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supported_fs_ext = intersect(supported_fs, supported_fs_ext)
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supported_fs_mkdir = intersect(supported_fs, supported_fs_mkdir)
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supported_fs_unlink = intersect(supported_fs, supported_fs_unlink)
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supported_fs_symlink = intersect(supported_fs, supported_fs_symlink)
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def pytest_generate_tests(metafunc):
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"""Parametrize fixtures, fs_obj_xxx
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Each fixture will be parametrized with a corresponding support_fs_xxx
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list.
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Args:
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metafunc: Pytest test function.
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Returns:
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Nothing.
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"""
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if 'fs_obj_basic' in metafunc.fixturenames:
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metafunc.parametrize('fs_obj_basic', supported_fs_basic,
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indirect=True, scope='module')
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if 'fs_obj_ext' in metafunc.fixturenames:
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metafunc.parametrize('fs_obj_ext', supported_fs_ext,
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indirect=True, scope='module')
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if 'fs_obj_mkdir' in metafunc.fixturenames:
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metafunc.parametrize('fs_obj_mkdir', supported_fs_mkdir,
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indirect=True, scope='module')
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if 'fs_obj_unlink' in metafunc.fixturenames:
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metafunc.parametrize('fs_obj_unlink', supported_fs_unlink,
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indirect=True, scope='module')
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if 'fs_obj_symlink' in metafunc.fixturenames:
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metafunc.parametrize('fs_obj_symlink', supported_fs_symlink,
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indirect=True, scope='module')
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#
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# Helper functions
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#
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def fstype_to_ubname(fs_type):
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"""Convert a file system type to an U-boot specific string
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A generated string can be used as part of file system related commands
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or a config name in u-boot. Currently fat16 and fat32 are handled
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specifically.
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Args:
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fs_type: File system type.
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Return:
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A corresponding string for file system type.
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"""
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if re.match('fat', fs_type):
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return 'fat'
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else:
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return fs_type
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def check_ubconfig(config, fs_type):
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"""Check whether a file system is enabled in u-boot configuration.
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This function is assumed to be called in a fixture function so that
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the whole test cases will be skipped if a given file system is not
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enabled.
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Args:
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fs_type: File system type.
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Return:
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Nothing.
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"""
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if not config.buildconfig.get('config_cmd_%s' % fs_type, None):
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pytest.skip('.config feature "CMD_%s" not enabled' % fs_type.upper())
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if not config.buildconfig.get('config_%s_write' % fs_type, None):
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pytest.skip('.config feature "%s_WRITE" not enabled'
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% fs_type.upper())
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def mk_fs(config, fs_type, size, id):
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"""Create a file system volume.
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Args:
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fs_type: File system type.
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size: Size of file system in MiB.
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id: Prefix string of volume's file name.
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Return:
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Nothing.
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"""
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fs_img = '%s.%s.img' % (id, fs_type)
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fs_img = config.persistent_data_dir + '/' + fs_img
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if fs_type == 'fat16':
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mkfs_opt = '-F 16'
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elif fs_type == 'fat32':
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mkfs_opt = '-F 32'
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else:
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mkfs_opt = ''
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if re.match('fat', fs_type):
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fs_lnxtype = 'vfat'
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else:
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fs_lnxtype = fs_type
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count = (size + 1048576 - 1) / 1048576
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# Some distributions do not add /sbin to the default PATH, where mkfs lives
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if '/sbin' not in os.environ["PATH"].split(os.pathsep):
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os.environ["PATH"] += os.pathsep + '/sbin'
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try:
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check_call('rm -f %s' % fs_img, shell=True)
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check_call('dd if=/dev/zero of=%s bs=1M count=%d'
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% (fs_img, count), shell=True)
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check_call('mkfs.%s %s %s'
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% (fs_lnxtype, mkfs_opt, fs_img), shell=True)
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if fs_type == 'ext4':
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sb_content = check_output('tune2fs -l %s' % fs_img, shell=True).decode()
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if 'metadata_csum' in sb_content:
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check_call('tune2fs -O ^metadata_csum %s' % fs_img, shell=True)
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return fs_img
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except CalledProcessError:
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call('rm -f %s' % fs_img, shell=True)
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raise
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# from test/py/conftest.py
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def tool_is_in_path(tool):
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"""Check whether a given command is available on host.
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Args:
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tool: Command name.
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Return:
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True if available, False if not.
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"""
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for path in os.environ['PATH'].split(os.pathsep):
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fn = os.path.join(path, tool)
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if os.path.isfile(fn) and os.access(fn, os.X_OK):
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return True
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return False
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fuse_mounted = False
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def mount_fs(fs_type, device, mount_point):
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"""Mount a volume.
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Args:
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fs_type: File system type.
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device: Volume's file name.
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mount_point: Mount point.
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Return:
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Nothing.
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"""
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global fuse_mounted
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try:
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check_call('guestmount --pid-file guestmount.pid -a %s -m /dev/sda %s'
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% (device, mount_point), shell=True)
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fuse_mounted = True
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return
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except CalledProcessError:
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fuse_mounted = False
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mount_opt = 'loop,rw'
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if re.match('fat', fs_type):
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mount_opt += ',umask=0000'
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check_call('sudo mount -o %s %s %s'
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% (mount_opt, device, mount_point), shell=True)
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# may not be effective for some file systems
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check_call('sudo chmod a+rw %s' % mount_point, shell=True)
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def umount_fs(mount_point):
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"""Unmount a volume.
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Args:
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mount_point: Mount point.
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Return:
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Nothing.
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"""
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if fuse_mounted:
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call('sync')
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call('guestunmount %s' % mount_point, shell=True)
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try:
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with open("guestmount.pid", "r") as pidfile:
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pid = int(pidfile.read())
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util.waitpid(pid, kill=True)
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os.remove("guestmount.pid")
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except FileNotFoundError:
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pass
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else:
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call('sudo umount %s' % mount_point, shell=True)
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#
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# Fixture for basic fs test
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# derived from test/fs/fs-test.sh
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#
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@pytest.fixture()
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def fs_obj_basic(request, u_boot_config):
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"""Set up a file system to be used in basic fs test.
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Args:
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request: Pytest request object.
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u_boot_config: U-boot configuration.
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Return:
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A fixture for basic fs test, i.e. a triplet of file system type,
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volume file name and a list of MD5 hashes.
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"""
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fs_type = request.param
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fs_img = ''
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fs_ubtype = fstype_to_ubname(fs_type)
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check_ubconfig(u_boot_config, fs_ubtype)
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mount_dir = u_boot_config.persistent_data_dir + '/mnt'
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small_file = mount_dir + '/' + SMALL_FILE
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big_file = mount_dir + '/' + BIG_FILE
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try:
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# 3GiB volume
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fs_img = mk_fs(u_boot_config, fs_type, 0xc0000000, '3GB')
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except CalledProcessError as err:
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pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
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return
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try:
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check_call('mkdir -p %s' % mount_dir, shell=True)
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except CalledProcessError as err:
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pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
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call('rm -f %s' % fs_img, shell=True)
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return
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try:
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# Mount the image so we can populate it.
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mount_fs(fs_type, fs_img, mount_dir)
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except CalledProcessError as err:
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pytest.skip('Mounting to folder failed for filesystem: ' + fs_type + '. {}'.format(err))
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call('rmdir %s' % mount_dir, shell=True)
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call('rm -f %s' % fs_img, shell=True)
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return
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try:
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# Create a subdirectory.
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check_call('mkdir %s/SUBDIR' % mount_dir, shell=True)
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# Create big file in this image.
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# Note that we work only on the start 1MB, couple MBs in the 2GB range
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# and the last 1 MB of the huge 2.5GB file.
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# So, just put random values only in those areas.
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check_call('dd if=/dev/urandom of=%s bs=1M count=1'
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% big_file, shell=True)
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check_call('dd if=/dev/urandom of=%s bs=1M count=2 seek=2047'
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% big_file, shell=True)
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check_call('dd if=/dev/urandom of=%s bs=1M count=1 seek=2499'
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% big_file, shell=True)
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# Create a small file in this image.
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check_call('dd if=/dev/urandom of=%s bs=1M count=1'
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% small_file, shell=True)
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# Delete the small file copies which possibly are written as part of a
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# previous test.
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# check_call('rm -f "%s.w"' % MB1, shell=True)
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# check_call('rm -f "%s.w2"' % MB1, shell=True)
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# Generate the md5sums of reads that we will test against small file
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out = check_output(
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'dd if=%s bs=1M skip=0 count=1 2> /dev/null | md5sum'
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% small_file, shell=True).decode()
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md5val = [ out.split()[0] ]
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# Generate the md5sums of reads that we will test against big file
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# One from beginning of file.
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out = check_output(
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'dd if=%s bs=1M skip=0 count=1 2> /dev/null | md5sum'
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% big_file, shell=True).decode()
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md5val.append(out.split()[0])
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# One from end of file.
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out = check_output(
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'dd if=%s bs=1M skip=2499 count=1 2> /dev/null | md5sum'
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% big_file, shell=True).decode()
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md5val.append(out.split()[0])
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# One from the last 1MB chunk of 2GB
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out = check_output(
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'dd if=%s bs=1M skip=2047 count=1 2> /dev/null | md5sum'
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% big_file, shell=True).decode()
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md5val.append(out.split()[0])
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# One from the start 1MB chunk from 2GB
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out = check_output(
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'dd if=%s bs=1M skip=2048 count=1 2> /dev/null | md5sum'
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% big_file, shell=True).decode()
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md5val.append(out.split()[0])
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# One 1MB chunk crossing the 2GB boundary
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out = check_output(
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'dd if=%s bs=512K skip=4095 count=2 2> /dev/null | md5sum'
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% big_file, shell=True).decode()
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md5val.append(out.split()[0])
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except CalledProcessError as err:
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pytest.skip('Setup failed for filesystem: ' + fs_type + '. {}'.format(err))
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umount_fs(mount_dir)
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return
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else:
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umount_fs(mount_dir)
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yield [fs_ubtype, fs_img, md5val]
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finally:
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call('rmdir %s' % mount_dir, shell=True)
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call('rm -f %s' % fs_img, shell=True)
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#
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# Fixture for extended fs test
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#
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@pytest.fixture()
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def fs_obj_ext(request, u_boot_config):
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"""Set up a file system to be used in extended fs test.
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Args:
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request: Pytest request object.
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u_boot_config: U-boot configuration.
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Return:
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A fixture for extended fs test, i.e. a triplet of file system type,
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volume file name and a list of MD5 hashes.
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"""
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fs_type = request.param
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fs_img = ''
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fs_ubtype = fstype_to_ubname(fs_type)
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check_ubconfig(u_boot_config, fs_ubtype)
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mount_dir = u_boot_config.persistent_data_dir + '/mnt'
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min_file = mount_dir + '/' + MIN_FILE
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tmp_file = mount_dir + '/tmpfile'
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try:
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# 128MiB volume
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fs_img = mk_fs(u_boot_config, fs_type, 0x8000000, '128MB')
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except CalledProcessError as err:
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pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
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return
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try:
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check_call('mkdir -p %s' % mount_dir, shell=True)
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except CalledProcessError as err:
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pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
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call('rm -f %s' % fs_img, shell=True)
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return
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try:
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# Mount the image so we can populate it.
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mount_fs(fs_type, fs_img, mount_dir)
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except CalledProcessError as err:
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pytest.skip('Mounting to folder failed for filesystem: ' + fs_type + '. {}'.format(err))
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call('rmdir %s' % mount_dir, shell=True)
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call('rm -f %s' % fs_img, shell=True)
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return
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try:
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# Create a test directory
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check_call('mkdir %s/dir1' % mount_dir, shell=True)
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# Create a small file and calculate md5
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check_call('dd if=/dev/urandom of=%s bs=1K count=20'
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% min_file, shell=True)
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out = check_output(
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'dd if=%s bs=1K 2> /dev/null | md5sum'
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% min_file, shell=True).decode()
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md5val = [ out.split()[0] ]
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# Calculate md5sum of Test Case 4
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check_call('dd if=%s of=%s bs=1K count=20'
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% (min_file, tmp_file), shell=True)
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check_call('dd if=%s of=%s bs=1K seek=5 count=20'
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% (min_file, tmp_file), shell=True)
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out = check_output('dd if=%s bs=1K 2> /dev/null | md5sum'
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% tmp_file, shell=True).decode()
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md5val.append(out.split()[0])
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# Calculate md5sum of Test Case 5
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check_call('dd if=%s of=%s bs=1K count=20'
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% (min_file, tmp_file), shell=True)
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check_call('dd if=%s of=%s bs=1K seek=5 count=5'
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% (min_file, tmp_file), shell=True)
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out = check_output('dd if=%s bs=1K 2> /dev/null | md5sum'
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% tmp_file, shell=True).decode()
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md5val.append(out.split()[0])
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# Calculate md5sum of Test Case 7
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check_call('dd if=%s of=%s bs=1K count=20'
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% (min_file, tmp_file), shell=True)
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check_call('dd if=%s of=%s bs=1K seek=20 count=20'
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% (min_file, tmp_file), shell=True)
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out = check_output('dd if=%s bs=1K 2> /dev/null | md5sum'
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% tmp_file, shell=True).decode()
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md5val.append(out.split()[0])
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check_call('rm %s' % tmp_file, shell=True)
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except CalledProcessError:
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pytest.skip('Setup failed for filesystem: ' + fs_type)
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umount_fs(mount_dir)
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return
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else:
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umount_fs(mount_dir)
|
|
yield [fs_ubtype, fs_img, md5val]
|
|
finally:
|
|
call('rmdir %s' % mount_dir, shell=True)
|
|
call('rm -f %s' % fs_img, shell=True)
|
|
|
|
#
|
|
# Fixture for mkdir test
|
|
#
|
|
@pytest.fixture()
|
|
def fs_obj_mkdir(request, u_boot_config):
|
|
"""Set up a file system to be used in mkdir test.
|
|
|
|
Args:
|
|
request: Pytest request object.
|
|
u_boot_config: U-boot configuration.
|
|
|
|
Return:
|
|
A fixture for mkdir test, i.e. a duplet of file system type and
|
|
volume file name.
|
|
"""
|
|
fs_type = request.param
|
|
fs_img = ''
|
|
|
|
fs_ubtype = fstype_to_ubname(fs_type)
|
|
check_ubconfig(u_boot_config, fs_ubtype)
|
|
|
|
try:
|
|
# 128MiB volume
|
|
fs_img = mk_fs(u_boot_config, fs_type, 0x8000000, '128MB')
|
|
except:
|
|
pytest.skip('Setup failed for filesystem: ' + fs_type)
|
|
return
|
|
else:
|
|
yield [fs_ubtype, fs_img]
|
|
call('rm -f %s' % fs_img, shell=True)
|
|
|
|
#
|
|
# Fixture for unlink test
|
|
#
|
|
@pytest.fixture()
|
|
def fs_obj_unlink(request, u_boot_config):
|
|
"""Set up a file system to be used in unlink test.
|
|
|
|
Args:
|
|
request: Pytest request object.
|
|
u_boot_config: U-boot configuration.
|
|
|
|
Return:
|
|
A fixture for unlink test, i.e. a duplet of file system type and
|
|
volume file name.
|
|
"""
|
|
fs_type = request.param
|
|
fs_img = ''
|
|
|
|
fs_ubtype = fstype_to_ubname(fs_type)
|
|
check_ubconfig(u_boot_config, fs_ubtype)
|
|
|
|
mount_dir = u_boot_config.persistent_data_dir + '/mnt'
|
|
|
|
try:
|
|
|
|
# 128MiB volume
|
|
fs_img = mk_fs(u_boot_config, fs_type, 0x8000000, '128MB')
|
|
except CalledProcessError as err:
|
|
pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
|
|
return
|
|
|
|
try:
|
|
check_call('mkdir -p %s' % mount_dir, shell=True)
|
|
except CalledProcessError as err:
|
|
pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
|
|
call('rm -f %s' % fs_img, shell=True)
|
|
return
|
|
|
|
try:
|
|
# Mount the image so we can populate it.
|
|
mount_fs(fs_type, fs_img, mount_dir)
|
|
except CalledProcessError as err:
|
|
pytest.skip('Mounting to folder failed for filesystem: ' + fs_type + '. {}'.format(err))
|
|
call('rmdir %s' % mount_dir, shell=True)
|
|
call('rm -f %s' % fs_img, shell=True)
|
|
return
|
|
|
|
try:
|
|
# Test Case 1 & 3
|
|
check_call('mkdir %s/dir1' % mount_dir, shell=True)
|
|
check_call('dd if=/dev/urandom of=%s/dir1/file1 bs=1K count=1'
|
|
% mount_dir, shell=True)
|
|
check_call('dd if=/dev/urandom of=%s/dir1/file2 bs=1K count=1'
|
|
% mount_dir, shell=True)
|
|
|
|
# Test Case 2
|
|
check_call('mkdir %s/dir2' % mount_dir, shell=True)
|
|
for i in range(0, 20):
|
|
check_call('mkdir %s/dir2/0123456789abcdef%02x'
|
|
% (mount_dir, i), shell=True)
|
|
|
|
# Test Case 4
|
|
check_call('mkdir %s/dir4' % mount_dir, shell=True)
|
|
|
|
# Test Case 5, 6 & 7
|
|
check_call('mkdir %s/dir5' % mount_dir, shell=True)
|
|
check_call('dd if=/dev/urandom of=%s/dir5/file1 bs=1K count=1'
|
|
% mount_dir, shell=True)
|
|
|
|
except CalledProcessError:
|
|
pytest.skip('Setup failed for filesystem: ' + fs_type)
|
|
umount_fs(mount_dir)
|
|
return
|
|
else:
|
|
umount_fs(mount_dir)
|
|
yield [fs_ubtype, fs_img]
|
|
finally:
|
|
call('rmdir %s' % mount_dir, shell=True)
|
|
call('rm -f %s' % fs_img, shell=True)
|
|
|
|
#
|
|
# Fixture for symlink fs test
|
|
#
|
|
@pytest.fixture()
|
|
def fs_obj_symlink(request, u_boot_config):
|
|
"""Set up a file system to be used in symlink fs test.
|
|
|
|
Args:
|
|
request: Pytest request object.
|
|
u_boot_config: U-boot configuration.
|
|
|
|
Return:
|
|
A fixture for basic fs test, i.e. a triplet of file system type,
|
|
volume file name and a list of MD5 hashes.
|
|
"""
|
|
fs_type = request.param
|
|
fs_img = ''
|
|
|
|
fs_ubtype = fstype_to_ubname(fs_type)
|
|
check_ubconfig(u_boot_config, fs_ubtype)
|
|
|
|
mount_dir = u_boot_config.persistent_data_dir + '/mnt'
|
|
|
|
small_file = mount_dir + '/' + SMALL_FILE
|
|
medium_file = mount_dir + '/' + MEDIUM_FILE
|
|
|
|
try:
|
|
|
|
# 1GiB volume
|
|
fs_img = mk_fs(u_boot_config, fs_type, 0x40000000, '1GB')
|
|
except CalledProcessError as err:
|
|
pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
|
|
return
|
|
|
|
try:
|
|
check_call('mkdir -p %s' % mount_dir, shell=True)
|
|
except CalledProcessError as err:
|
|
pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
|
|
call('rm -f %s' % fs_img, shell=True)
|
|
return
|
|
|
|
try:
|
|
# Mount the image so we can populate it.
|
|
mount_fs(fs_type, fs_img, mount_dir)
|
|
except CalledProcessError as err:
|
|
pytest.skip('Mounting to folder failed for filesystem: ' + fs_type + '. {}'.format(err))
|
|
call('rmdir %s' % mount_dir, shell=True)
|
|
call('rm -f %s' % fs_img, shell=True)
|
|
return
|
|
|
|
try:
|
|
# Create a subdirectory.
|
|
check_call('mkdir %s/SUBDIR' % mount_dir, shell=True)
|
|
|
|
# Create a small file in this image.
|
|
check_call('dd if=/dev/urandom of=%s bs=1M count=1'
|
|
% small_file, shell=True)
|
|
|
|
# Create a medium file in this image.
|
|
check_call('dd if=/dev/urandom of=%s bs=10M count=1'
|
|
% medium_file, shell=True)
|
|
|
|
# Generate the md5sums of reads that we will test against small file
|
|
out = check_output(
|
|
'dd if=%s bs=1M skip=0 count=1 2> /dev/null | md5sum'
|
|
% small_file, shell=True).decode()
|
|
md5val = [out.split()[0]]
|
|
out = check_output(
|
|
'dd if=%s bs=10M skip=0 count=1 2> /dev/null | md5sum'
|
|
% medium_file, shell=True).decode()
|
|
md5val.extend([out.split()[0]])
|
|
|
|
except CalledProcessError:
|
|
pytest.skip('Setup failed for filesystem: ' + fs_type)
|
|
umount_fs(mount_dir)
|
|
return
|
|
else:
|
|
umount_fs(mount_dir)
|
|
yield [fs_ubtype, fs_img, md5val]
|
|
finally:
|
|
call('rmdir %s' % mount_dir, shell=True)
|
|
call('rm -f %s' % fs_img, shell=True)
|