test/py: ums: add filesystem-based testing
Enhance the UMS test to optionally mount a partition and read/write a file to it, validating that the content written and read back are identical. This enhancement is backwards-compatible; old boardenv contents that don't define the new configuration data will cause the test code to perform as before. test/ums/ is deleted since the Python test now performs the same testing that it did. The code is also re-written to make use of the recently added utility module, and split it up into nested functions so the overall logic of the test process can be followed more easily without the details cluttering the code. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stephen Warren
Simon Glass
parent
76b4693928
commit
d054f4c2cb
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@ -2,13 +2,17 @@
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#
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# SPDX-License-Identifier: GPL-2.0
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# Test U-Boot's "ums" command. At present, this test only ensures that a UMS
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# device can be enumerated by the host/test machine. In the future, this test
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# should be enhanced to validate disk IO.
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# Test U-Boot's "ums" command. The test starts UMS in U-Boot, waits for USB
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# device enumeration on the host, reads a small block of data from the UMS
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# block device, optionally mounts a partition and performs filesystem-based
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# read/write tests, and finally aborts the "ums" command in U-Boot.
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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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import time
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import u_boot_utils
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'''
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Note: This test relies on:
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@ -17,13 +21,36 @@ a) boardenv_* to contain configuration values to define which USB ports are
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available for testing. Without this, this test will be automatically skipped.
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For example:
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# Leave this list empty if you have no block_devs below with writable
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# partitions defined.
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env__mount_points = (
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"/mnt/ubtest-mnt-p2371-2180-na",
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)
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env__usb_dev_ports = (
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{'tgt_usb_ctlr': '0', 'host_ums_dev_node': '/dev/disk/by-path/pci-0000:00:14.0-usb-0:13:1.0-scsi-0:0:0:0'},
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{
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"tgt_usb_ctlr": "0",
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"host_ums_dev_node": "/dev/disk/by-path/pci-0000:00:14.0-usb-0:13:1.0-scsi-0:0:0:0",
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},
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)
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env__block_devs = (
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{'type': 'mmc', 'id': '0'}, # eMMC; always present
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{'type': 'mmc', 'id': '1'}, # SD card; present since I plugged one in
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# eMMC; always present
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{
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"type": "mmc",
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"id": "0",
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# The following two properties are optional.
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# If present, the partition will be mounted and a file written-to and
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# read-from it. If missing, only a simple block read test will be
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# performed.
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"writable_fs_partition": 1,
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"writable_fs_subdir": "tmp/",
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},
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# SD card; present since I plugged one in
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{
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"type": "mmc",
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"id": "1"
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},
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)
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b) udev rules to set permissions on devices nodes, so that sudo is not
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@ -34,47 +61,42 @@ ACTION=="add", SUBSYSTEM=="block", SUBSYSTEMS=="usb", KERNELS=="3-13", MODE:="66
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(You may wish to change the group ID instead of setting the permissions wide
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open. All that matters is that the user ID running the test can access the
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device.)
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c) /etc/fstab entries to allow the block device to be mounted without requiring
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root permissions. For example:
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/dev/disk/by-path/pci-0000:00:14.0-usb-0:13:1.0-scsi-0:0:0:0-part1 /mnt/ubtest-mnt-p2371-2180-na ext4 noauto,user,nosuid,nodev
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This entry is only needed if any block_devs above contain a
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writable_fs_partition value.
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'''
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def open_ums_device(host_ums_dev_node):
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'''Attempt to open a device node, returning either the opened file handle,
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or None on any error.'''
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try:
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return open(host_ums_dev_node, 'rb')
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except:
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return None
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def wait_for_ums_device(host_ums_dev_node):
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'''Continually attempt to open the device node exported by the "ums"
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command, and either return the opened file handle, or raise an exception
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after a timeout.'''
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for i in xrange(100):
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fh = open_ums_device(host_ums_dev_node)
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if fh:
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return fh
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time.sleep(0.1)
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raise Exception('UMS device did not appear')
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def wait_for_ums_device_gone(host_ums_dev_node):
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'''Continually attempt to open the device node exported by the "ums"
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command, and either return once the device has disappeared, or raise an
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exception if it does not before a timeout occurs.'''
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for i in xrange(100):
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fh = open_ums_device(host_ums_dev_node)
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if not fh:
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return
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fh.close()
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time.sleep(0.1)
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raise Exception('UMS device did not disappear')
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@pytest.mark.buildconfigspec('cmd_usb_mass_storage')
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def test_ums(u_boot_console, env__usb_dev_port, env__block_devs):
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'''Test the "ums" command; the host system must be able to enumerate a UMS
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device when "ums" is running, and this device must disappear when "ums" is
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aborted.'''
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device when "ums" is running, block and optionally file I/O are tested,
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and this device must disappear when "ums" is aborted.
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Args:
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u_boot_console: A U-Boot console connection.
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env__usb_dev_port: The single USB device-mode port specification on
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which to run the test. See the file-level comment above for
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details of the format.
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env__block_devs: The list of block devices that the target U-Boot
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device has attached. See the file-level comment above for details
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of the format.
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Returns:
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Nothing.
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'''
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have_writable_fs_partition = 'writable_fs_partition' in env__block_devs[0]
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if not have_writable_fs_partition:
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# If 'writable_fs_subdir' is missing, we'll skip all parts of the
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# testing which mount filesystems.
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u_boot_console.log.warning(
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'boardenv missing "writable_fs_partition"; ' +
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'UMS testing will be limited.')
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tgt_usb_ctlr = env__usb_dev_port['tgt_usb_ctlr']
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host_ums_dev_node = env__usb_dev_port['host_ums_dev_node']
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@ -84,11 +106,129 @@ def test_ums(u_boot_console, env__usb_dev_port, env__block_devs):
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# device list here. We'll test each block device somewhere else.
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tgt_dev_type = env__block_devs[0]['type']
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tgt_dev_id = env__block_devs[0]['id']
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if have_writable_fs_partition:
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mount_point = u_boot_console.config.env['env__mount_points'][0]
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mount_subdir = env__block_devs[0]['writable_fs_subdir']
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part_num = env__block_devs[0]['writable_fs_partition']
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host_ums_part_node = '%s-part%d' % (host_ums_dev_node, part_num)
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else:
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host_ums_part_node = host_ums_dev_node
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cmd = 'ums %s %s %s' % (tgt_usb_ctlr, tgt_dev_type, tgt_dev_id)
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u_boot_console.run_command('ums 0 mmc 0', wait_for_prompt=False)
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fh = wait_for_ums_device(host_ums_dev_node)
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fh.read(4096)
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fh.close()
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u_boot_console.ctrlc()
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wait_for_ums_device_gone(host_ums_dev_node)
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test_f = u_boot_utils.PersistentRandomFile(u_boot_console, 'ums.bin',
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1024 * 1024);
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if have_writable_fs_partition:
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mounted_test_fn = mount_point + '/' + mount_subdir + test_f.fn
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def start_ums():
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'''Start U-Boot's ums shell command.
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This also waits for the host-side USB enumeration process to complete.
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Args:
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None.
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Returns:
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Nothing.
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'''
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u_boot_console.log.action(
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'Starting long-running U-Boot ums shell command')
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cmd = 'ums %s %s %s' % (tgt_usb_ctlr, tgt_dev_type, tgt_dev_id)
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u_boot_console.run_command(cmd, wait_for_prompt=False)
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u_boot_console.wait_for(re.compile('UMS: LUN.*[\r\n]'))
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fh = u_boot_utils.wait_until_open_succeeds(host_ums_part_node)
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u_boot_console.log.action('Reading raw data from UMS device')
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fh.read(4096)
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fh.close()
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def mount():
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'''Mount the block device that U-Boot exports.
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Args:
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None.
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Returns:
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Nothing.
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'''
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u_boot_console.log.action('Mounting exported UMS device')
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cmd = ('/bin/mount', host_ums_part_node)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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def umount(ignore_errors):
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'''Unmount the block device that U-Boot exports.
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Args:
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ignore_errors: Ignore any errors. This is useful if an error has
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already been detected, and the code is performing best-effort
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cleanup. In this case, we do not want to mask the original
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error by "honoring" any new errors.
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Returns:
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Nothing.
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'''
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u_boot_console.log.action('Unmounting UMS device')
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cmd = ('/bin/umount', host_ums_part_node)
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u_boot_utils.run_and_log(u_boot_console, cmd, ignore_errors)
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def stop_ums(ignore_errors):
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'''Stop U-Boot's ums shell command from executing.
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This also waits for the host-side USB de-enumeration process to
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complete.
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Args:
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ignore_errors: Ignore any errors. This is useful if an error has
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already been detected, and the code is performing best-effort
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cleanup. In this case, we do not want to mask the original
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error by "honoring" any new errors.
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Returns:
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Nothing.
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'''
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u_boot_console.log.action(
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'Stopping long-running U-Boot ums shell command')
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u_boot_console.ctrlc()
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u_boot_utils.wait_until_file_open_fails(host_ums_part_node,
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ignore_errors)
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ignore_cleanup_errors = True
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try:
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start_ums()
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if not have_writable_fs_partition:
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# Skip filesystem-based testing if not configured
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return
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try:
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mount()
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u_boot_console.log.action('Writing test file via UMS')
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cmd = ('rm', '-f', mounted_test_fn)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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if os.path.exists(mounted_test_fn):
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raise Exception('Could not rm target UMS test file')
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cmd = ('cp', test_f.abs_fn, mounted_test_fn)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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ignore_cleanup_errors = False
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finally:
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umount(ignore_errors=ignore_cleanup_errors)
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finally:
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stop_ums(ignore_errors=ignore_cleanup_errors)
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ignore_cleanup_errors = True
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try:
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start_ums()
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try:
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mount()
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u_boot_console.log.action('Reading test file back via UMS')
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read_back_hash = u_boot_utils.md5sum_file(mounted_test_fn)
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cmd = ('rm', '-f', mounted_test_fn)
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u_boot_utils.run_and_log(u_boot_console, cmd)
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ignore_cleanup_errors = False
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finally:
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umount(ignore_errors=ignore_cleanup_errors)
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finally:
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stop_ums(ignore_errors=ignore_cleanup_errors)
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written_hash = test_f.content_hash
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assert(written_hash == read_back_hash)
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@ -1,30 +0,0 @@
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UMS test script.
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ums_gadget_test.sh
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==================
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Example usage:
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1. On the target:
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create UMS exportable partitions (with e.g. gpt write), or specify a
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partition number (PART_NUM) as "-" to use the entire device
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ums 0 mmc 0
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2. On the host:
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sudo test/ums/ums_gadget_test.sh VID PID PART_NUM [-f FILE_SYSTEM] [test_file]
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e.g. sudo test/ums/ums_gadget_test.sh 0525 a4a5 6 -f vfat ./dat_14M.img
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... where:
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VID - UMS device USB Vendor ID
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PID - UMS device USB Product ID
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PART_NUM - is the partition number on which UMS operates or "-" to use the
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whole device
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Information about available partitions on the target one can read with using
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the 'mmc part' or 'part list' commands.
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The partition num (PART_NUM) can be specified as '-' for using the whole device.
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The [-f FILE_SYSTEM] optional switch allows for formatting target partition to
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FILE_SYSTEM.
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The last, optional [test_file] parameter is for specifying the exact test file
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to use.
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@ -1,183 +0,0 @@
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#! /bin/bash
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# Copyright (C) 2014 Samsung Electronics
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# Lukasz Majewski <l.majewski@samsung.com>
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#
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# UMS operation test script
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#
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# SPDX-License-Identifier: GPL-2.0+
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clear
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COLOUR_RED="\33[31m"
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COLOUR_GREEN="\33[32m"
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COLOUR_ORANGE="\33[33m"
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COLOUR_DEFAULT="\33[0m"
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DIR=./
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SUFFIX=img
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RCV_DIR=rcv/
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LOG_FILE=./log/log-`date +%d-%m-%Y_%H-%M-%S`
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cd `dirname $0`
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../dfu/dfu_gadget_test_init.sh 33M 97M
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cleanup () {
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rm -rf $RCV_DIR $MNT_DIR
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}
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control_c()
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# run if user hits control-c
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{
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echo -en "\n*** CTRL+C ***\n"
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umount $MNT_DIR
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cleanup
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exit 0
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}
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# trap keyboard interrupt (control-c)
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trap control_c SIGINT
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die () {
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printf " $COLOUR_RED FAILED $COLOUR_DEFAULT \n"
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cleanup
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exit 1
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}
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calculate_md5sum () {
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MD5SUM=`md5sum $1`
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MD5SUM=`echo $MD5SUM | cut -d ' ' -f1`
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echo "md5sum:"$MD5SUM
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}
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ums_test_file () {
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printf "$COLOUR_GREEN========================================================================================= $COLOUR_DEFAULT\n"
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printf "File:$COLOUR_GREEN %s $COLOUR_DEFAULT\n" $1
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mount /dev/$MEM_DEV $MNT_DIR
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if [ -f $MNT_DIR/dat_* ]; then
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rm $MNT_DIR/dat_*
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fi
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cp ./$1 $MNT_DIR
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while true; do
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umount $MNT_DIR > /dev/null 2>&1
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if [ $? -eq 0 ]; then
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break
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fi
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printf "$COLOUR_ORANGE\tSleeping to wait for umount...$COLOUR_DEFAULT\n"
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sleep 1
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done
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echo -n "TX: "
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calculate_md5sum $1
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MD5_TX=$MD5SUM
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sleep 1
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N_FILE=$DIR$RCV_DIR${1:2}"_rcv"
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mount /dev/$MEM_DEV $MNT_DIR
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cp $MNT_DIR/$1 $N_FILE || die $?
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rm $MNT_DIR/$1
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umount $MNT_DIR
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echo -n "RX: "
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calculate_md5sum $N_FILE
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MD5_RX=$MD5SUM
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if [ "$MD5_TX" == "$MD5_RX" ]; then
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printf " $COLOUR_GREEN -------> OK $COLOUR_DEFAULT \n"
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else
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printf " $COLOUR_RED -------> FAILED $COLOUR_DEFAULT \n"
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cleanup
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exit 1
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fi
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}
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printf "$COLOUR_GREEN========================================================================================= $COLOUR_DEFAULT\n"
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echo "U-boot UMS test program"
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if [ $EUID -ne 0 ]; then
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echo "You must be root to do this." 1>&2
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exit 100
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fi
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if [ $# -lt 3 ]; then
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echo "Wrong number of arguments"
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echo "Example:"
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echo "sudo ./ums_gadget_test.sh VID PID PART_NUM [-f ext4] [test_file]"
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die
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fi
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MNT_DIR="/mnt/tmp-ums-test"
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VID=$1; shift
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PID=$1; shift
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PART_NUM=$1; shift
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if [ "$1" == "-f" ]; then
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shift
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FS_TO_FORMAT=$1; shift
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fi
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TEST_FILE=$1
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for f in `find /sys -type f -name idProduct`; do
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d=`dirname ${f}`
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if [ `cat ${d}/idVendor` != "${VID}" ]; then
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continue
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fi
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if [ `cat ${d}/idProduct` != "${PID}" ]; then
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continue
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fi
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USB_DEV=${d}
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break
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done
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if [ -z "${USB_DEV}" ]; then
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echo "Connect target"
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echo "e.g. ums 0 mmc 0"
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exit 1
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fi
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MEM_DEV=`find $USB_DEV -type d -name "sd[a-z]" | awk -F/ '{print $(NF)}' -`
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mkdir -p $RCV_DIR
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if [ ! -d $MNT_DIR ]; then
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||||
mkdir -p $MNT_DIR
|
||||
fi
|
||||
|
||||
if [ "$PART_NUM" == "-" ]; then
|
||||
PART_NUM=""
|
||||
fi
|
||||
MEM_DEV=$MEM_DEV$PART_NUM
|
||||
|
||||
if [ -n "$FS_TO_FORMAT" ]; then
|
||||
echo -n "Formatting partition /dev/$MEM_DEV to $FS_TO_FORMAT"
|
||||
mkfs -t $FS_TO_FORMAT /dev/$MEM_DEV > /dev/null 2>&1
|
||||
if [ $? -eq 0 ]; then
|
||||
printf " $COLOUR_GREEN DONE $COLOUR_DEFAULT \n"
|
||||
else
|
||||
die
|
||||
fi
|
||||
fi
|
||||
|
||||
printf "Mount: /dev/$MEM_DEV \n"
|
||||
|
||||
if [ -n "$TEST_FILE" ]; then
|
||||
if [ ! -e $TEST_FILE ]; then
|
||||
echo "No file: $TEST_FILE"
|
||||
die
|
||||
fi
|
||||
ums_test_file $TEST_FILE
|
||||
else
|
||||
for file in $DIR*.$SUFFIX
|
||||
do
|
||||
ums_test_file $file
|
||||
done
|
||||
fi
|
||||
|
||||
cleanup
|
||||
|
||||
exit 0
|
||||
Loading…
Reference in New Issue