/usr/share/checkbox/scripts/removable_storage_test is in checkbox 0.13.7.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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import dbus
import sys
import random
import os
import tempfile
import hashlib
import argparse
from shutil import copy2
import subprocess
import threading
class DiskTest():
def __init__(self):
self.process = None
self.cmd = None
self.timeout = 3
self.returnCode = None
self.rem_disks = {} # mounted before the script running
self.rem_disks_nm = {} # not mounted before the script running
''' Class to contain various methods for testing USB disks '''
def generate_test_data(self,size):
'''Generate a random data file of a given size'''
r = random
min = 100
max = 1000000
self.tfile = tempfile.NamedTemporaryFile(delete=False)
print "Creating Temp Data file"
while os.path.getsize(self.tfile.name) < size:
self.tfile.write(str(r.randint(min,max)))
print "File name is :%s" % self.tfile.name
print "File size is %s bytes" % os.path.getsize(self.tfile.name)
def md5_hash_file(self,path):
fh = open(path,'r')
md5 = hashlib.md5()
try:
while True:
data = fh.read(8192)
if not data:
break
md5.update(data)
finally:
fh.close()
return md5.hexdigest()
def copy_file(self,source,dest):
try:
copy2(source,dest)
except IOError:
print "ERROR: Unable to copy the file to %s" % dest
return False
else:
return True
def compare_hash(self,parent,child):
if not parent == child:
return False
else:
return True
def clean_up(self,target):
try:
os.unlink(target)
except:
print "ERROR: Unable to remove tempfile %s" % target
def get_disk_info(self, device):
''' Probes dbus to find any attached/mounted devices'''
bus = dbus.SystemBus()
ud_manager_obj = bus.get_object("org.freedesktop.UDisks", "/org/freedesktop/UDisks")
ud_manager = dbus.Interface(ud_manager_obj, 'org.freedesktop.UDisks')
self.rem_disks = {}
self.rem_disks_nm = {}
for dev in ud_manager.EnumerateDevices():
device_obj = bus.get_object("org.freedesktop.UDisks", dev)
device_props = dbus.Interface(device_obj, dbus.PROPERTIES_IFACE)
if not device_props.Get('org.freedesktop.UDisks.Device',"DeviceIsDrive"):
if device_props.Get('org.freedesktop.UDisks.Device', "DriveConnectionInterface") in device:
dev_file = str(device_props.Get('org.freedesktop.UDisks.Device',"DeviceFile"))
if len(device_props.Get('org.freedesktop.UDisks.Device',"DeviceMountPaths")) > 0:
devPath = str(device_props.Get('org.freedesktop.UDisks.Device',"DeviceMountPaths")[0])
self.rem_disks[dev_file] = devPath
else:
self.rem_disks_nm[dev_file] = None
def mount(self):
passed_mount = {}
for k, _ in self.rem_disks_nm.items():
t = tempfile.mkdtemp(dir='/tmp')
r = False
try:
r = self.make_thread(self._mount(k, t))
except:
pass
# remove those devices fail at mounting
if r:
passed_mount[k] = t
print "Now mounting %s on %s" % (k, t)
else:
print "Error: can't mount %s" % (k)
if len(self.rem_disks_nm) == len(passed_mount):
self.rem_disks_nm = passed_mount
return 0
else:
c = len(self.rem_disks_nm) - len(passed_mount)
self.rem_disks_nm = passed_mount
return c
def _mount(self, dev_file, tmp_dir):
cmd = ['/bin/mount', dev_file, tmp_dir]
self.process = subprocess.Popen(cmd)
self.process.communicate()
def umount(self):
errors = 0
for d in self.rem_disks_nm:
r = False
try:
r = self.make_thread(self._umount(d))
except:
errors += 1
pass
if r:
print "Now umounting %s on %s" % (d, self.rem_disks_nm[d])
else:
print "Error: can't umount %s on %s" % (d, self.rem_disks_nm[d])
return errors
def _umount(self, dir):
# '-l': lazy umount, dealing problem of unable to umount the device.
cmd = ['/bin/umount', '-l', dir]
self.process = subprocess.Popen(cmd)
self.process.communicate()
def clean_tmp_dir(self):
for d in self.rem_disks_nm:
if not os.path.ismount(self.rem_disks_nm[d]):
os.rmdir(self.rem_disks_nm[d])
def make_thread(self, target):
thread = threading.Thread(target=target)
thread.start()
thread.join(self.timeout)
if thread.is_alive():
self.process.terminate()
thread.join()
r = getattr(self.process,'returncode', 1)
if r == 0:
return True
else:
return False
def main():
parser = argparse.ArgumentParser()
parser.add_argument('device',
choices=['usb','firewire','sdio', 'scsi'],
nargs = '+',
help="The type of removable media (usb, firewire, sdio) to test.")
parser.add_argument('-l','--list',
action='store_true',
default=False,
help="List the removable devices and mounting status")
parser.add_argument('-c','--count',
action='store',
default='1',
type=int,
help='The number of times to run the test')
parser.add_argument('-s','--size',
action='store',
type=int,
default=1048576,
help="The size of the test data file to use in Bytes. Default is %(default)s")
parser.add_argument('-n','--skip-not-mount',
action='store_true',
default=False,
help="skip the removable devices which haven't been mounted before the test.")
args = parser.parse_args()
test = DiskTest()
test.get_disk_info(args.device)
errors = 0
if len(test.rem_disks) > 0 or len(test.rem_disks_nm) > 0: #If we do have removable drives attached and mounted
if args.list: #Simply output a list of drives detected
print '-' * 20
print "removable devices currently mounted:"
if len(test.rem_disks) > 0:
for k,v in test.rem_disks.iteritems():
print "%s : %s" % (k, v)
else:
print "None"
print "removable devices currently not mounted:"
if len(test.rem_disks_nm) > 0:
for k, _ in test.rem_disks_nm.iteritems():
print k
else:
print "None"
print '-' * 20
return 0
else: #Create a file, copy to USB and compare hashes
if args.skip_not_mount:
disks_all = test.rem_disks
else:
# mount those haven't be mounted yet.
errors_mount = test.mount()
if errors_mount > 0:
print "There're total %d device(s) failed at mounting." % errors_mount
errors += errors_mount
disks_all = dict(test.rem_disks.items() + test.rem_disks_nm.items())
if len(disks_all) > 0:
print "Found the following mounted %s partitions:" % args.device
for k,v in disks_all.iteritems():
print "%s : %s" % (k, v)
print '-' * 20
print "Running %s file transfer test for %s iterations" % (args.device, args.count)
try:
for i in range(args.count):
test.generate_test_data(args.size)
parent_hash = test.md5_hash_file(test.tfile.name)
print "Parent hash is: %s" % parent_hash
for k,v in disks_all.iteritems():
print "Copying %s to %s" % (test.tfile.name, v)
if not test.copy_file(test.tfile.name, v):
errors += 1
continue
print "Hashing copy on %s" % v
target = ''.join((v,'/',os.path.basename(test.tfile.name)))
child_hash = test.md5_hash_file(target)
print "Hash of %s on %s is %s" % (target, v, child_hash)
if not test.compare_hash(parent_hash,child_hash):
print "[Iteration %s] Failure on file copy to %s" % (i, k)
errors += 1
test.clean_up(target)
test.clean_up(test.tfile.name)
finally:
if( len(test.rem_disks_nm) > 0 ):
if test.umount() != 0:
errors += 1
test.clean_tmp_dir()
if errors > 0:
print "Completed %s test iterations, but there were errors" % args.count
return 1
else:
print "Successfully completed %s %s file transfer test iterations" % (args.count, args.device)
return 0
else:
print "No device being mounted successfully for testing, aborting"
return 1
else: #If we don't have removable drives attached and mounted
print "No removable drives were detected, aborting"
return 1
if __name__ == '__main__':
sys.exit(main())
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