code.vuplus.com Git - vuplus_dvbapp/blob - lib/python/Components/Harddisk.py

   1 from os import system, listdir, statvfs, popen, makedirs, stat, major, minor, path, access
   2
   3 from Tools.Directories import SCOPE_HDD, resolveFilename, fileExists
   4
   5 from Tools.CList import CList
   6 from SystemInfo import SystemInfo
   7 import time
   8 from Components.Console import Console
   9
  10 def MajorMinor(path):
  11         rdev = stat(path).st_rdev
  12         return (major(rdev),minor(rdev))
  13
  14 def readFile(filename):
  15         file = open(filename)
  16         data = file.read().strip()
  17         file.close()
  18         return data
  19
  20 def getProcMounts():
  21         try:
  22                 mounts = open("/proc/mounts", 'r')
  23         except IOError, ex:
  24                 print "[Harddisk] Failed to open /proc/mounts", ex
  25                 return []
  26         result = [line.strip().split(' ') for line in mounts]
  27         for item in result:
  28                 # Spaces are encoded as \040 in mounts
  29                 item[1] = item[1].replace('\\040', ' ')
  30         return result
  31
  32 DEVTYPE_UDEV = 0
  33 DEVTYPE_DEVFS = 1
  34
  35 class Harddisk:
  36         def __init__(self, device):
  37                 self.device = device
  38
  39                 if access("/dev/.udev", 0):
  40                         self.type = DEVTYPE_UDEV
  41                 elif access("/dev/.devfsd", 0):
  42                         self.type = DEVTYPE_DEVFS
  43                 else:
  44                         print "Unable to determine structure of /dev"
  45
  46                 self.max_idle_time = 0
  47                 self.idle_running = False
  48                 self.timer = None
  49
  50                 self.dev_path = ''
  51                 self.disk_path = ''
  52                 self.mount_path = None
  53                 self.mount_device = None
  54                 self.phys_path = path.realpath(self.sysfsPath('device'))
  55
  56                 if self.type == DEVTYPE_UDEV:
  57                         self.dev_path = '/dev/' + self.device
  58                         self.disk_path = self.dev_path
  59
  60                 elif self.type == DEVTYPE_DEVFS:
  61                         tmp = readFile(self.sysfsPath('dev')).split(':')
  62                         s_major = int(tmp[0])
  63                         s_minor = int(tmp[1])
  64                         for disc in listdir("/dev/discs"):
  65                                 dev_path = path.realpath('/dev/discs/' + disc)
  66                                 disk_path = dev_path + '/disc'
  67                                 try:
  68                                         rdev = stat(disk_path).st_rdev
  69                                 except OSError:
  70                                         continue
  71                                 if s_major == major(rdev) and s_minor == minor(rdev):
  72                                         self.dev_path = dev_path
  73                                         self.disk_path = disk_path
  74                                         break
  75
  76                 print "new Harddisk", self.device, '->', self.dev_path, '->', self.disk_path
  77                 self.startIdle()
  78
  79         def __lt__(self, ob):
  80                 return self.device < ob.device
  81
  82         def partitionPath(self, n):
  83                 if self.type == DEVTYPE_UDEV:
  84                         return self.dev_path + n
  85                 elif self.type == DEVTYPE_DEVFS:
  86                         return self.dev_path + '/part' + n
  87
  88         def sysfsPath(self, filename):
  89                 return path.realpath('/sys/block/' + self.device + '/' + filename)
  90
  91         def stop(self):
  92                 if self.timer:
  93                         self.timer.stop()
  94                         self.timer.callback.remove(self.runIdle)
  95
  96         def bus(self):
  97                 # CF (7025 specific)
  98                 if self.type == DEVTYPE_UDEV:
  99                         ide_cf = False  # FIXME
 100                 elif self.type == DEVTYPE_DEVFS:
 101                         ide_cf = self.device[:2] == "hd" and "host0" not in self.dev_path
 102
 103                 internal = "pci" in self.phys_path
 104
 105                 if ide_cf:
 106                         ret = "External (CF)"
 107                 elif internal:
 108                         ret = "Internal"
 109                 else:
 110                         ret = "External"
 111                 return ret
 112
 113         def diskSize(self):
 114                 try:
 115                         line = readFile(self.sysfsPath('size'))
 116                 except:
 117                         harddiskmanager.removeHotplugPartition(self.device)
 118                         print "error remove",self.device
 119                         return -1
 120                 try:
 121                         cap = int(line)
 122                 except:
 123                         return 0;
 124                 return cap / 1000 * 512 / 1000
 125
 126         def capacity(self):
 127                 cap = self.diskSize()
 128                 if cap == 0:
 129                         return ""
 130                 return "%d.%03d GB" % (cap/1000, cap%1000)
 131
 132         def model(self):
 133                 try:
 134                         if self.device[:2] == "hd":
 135                                 return readFile('/proc/ide/' + self.device + '/model')
 136                         elif self.device[:2] == "sd":
 137                                 vendor = readFile(self.sysfsPath('device/vendor'))
 138                                 model = readFile(self.sysfsPath('device/model'))
 139                                 return vendor + '(' + model + ')'
 140                         else:
 141                                 assert False, "no hdX or sdX"
 142                 except:
 143                         harddiskmanager.removeHotplugPartition(self.device)
 144                         print "error remove",self.device
 145                         return -1
 146
 147         def free(self):
 148                 try:
 149                         mounts = open("/proc/mounts")
 150                 except IOError:
 151                         return -1
 152
 153                 lines = mounts.readlines()
 154                 mounts.close()
 155
 156                 for line in lines:
 157                         parts = line.strip().split(" ")
 158                         real_path = path.realpath(parts[0])
 159                         if not real_path[-1].isdigit():
 160                                 continue
 161                         try:
 162                                 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
 163                                         stat = statvfs(parts[1])
 164                                         return stat.f_bfree/1000 * stat.f_bsize/1000
 165                         except OSError:
 166                                 pass
 167                 return -1
 168
 169         def numPartitions(self):
 170                 numPart = -1
 171                 if self.type == DEVTYPE_UDEV:
 172                         try:
 173                                 devdir = listdir('/dev')
 174                         except OSError:
 175                                 return -1
 176                         for filename in devdir:
 177                                 if filename.startswith(self.device):
 178                                         numPart += 1
 179
 180                 elif self.type == DEVTYPE_DEVFS:
 181                         try:
 182                                 idedir = listdir(self.dev_path)
 183                         except OSError:
 184                                 return -1
 185                         for filename in idedir:
 186                                 if filename.startswith("disc"):
 187                                         numPart += 1
 188                                 if filename.startswith("part"):
 189                                         numPart += 1
 190                 return numPart
 191
 192         def mountDevice(self):
 193                 for parts in getProcMounts():
 194                         if path.realpath(parts[0]).startswith(self.dev_path):
 195                                 self.mount_device = parts[0]
 196                                 self.mount_path = parts[1]
 197                                 return parts[1]
 198
 199         def findMount(self):
 200                 if self.mount_path is None:
 201                         return self.mountDevice()
 202                 return self.mount_path
 203
 204         def unmount(self):
 205                 try:
 206                         mounts = open("/proc/mounts")
 207                 except IOError:
 208                         return -1
 209
 210                 lines = mounts.readlines()
 211                 mounts.close()
 212
 213                 cmd = "umount"
 214
 215                 for line in lines:
 216                         parts = line.strip().split(" ")
 217                         real_path = path.realpath(parts[0])
 218                         if not real_path[-1].isdigit():
 219                                 continue
 220                         try:
 221                                 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
 222                                         cmd = ' ' . join([cmd, parts[1]])
 223                                         break
 224                         except OSError:
 225                                 pass
 226
 227                 res = system(cmd)
 228                 return (res >> 8)
 229
 230         def checkPartionPath(self, path):
 231                 import time, os
 232                 for i in range(1,10):
 233                         if os.path.exists(path):
 234                                 return True
 235                         time.sleep(1)
 236                 return False
 237
 238         def createPartition(self):
 239                 def CheckPartedVer():
 240                         cmd = 'parted --version'
 241                         lines = popen(cmd).readlines()
 242                         for l in lines:
 243                                 if l.find("parted (GNU parted)") != -1:
 244                                         ver = l.split()[3].strip()
 245                                         break
 246                         try:
 247                                 ver = float(ver)
 248                         except:
 249                                 print "[CheckPartedVer] check parted version Failed!"
 250                                 return 0
 251                         return ver
 252
 253                 disk_size = self.diskSize()
 254
 255                 if disk_size > 2.2 * 1000 * 1000: # if 2.2 TB
 256                         setAlign = ""
 257                         partedVer = CheckPartedVer()
 258                         if partedVer >= 2.1: # align option is supported in version 2.1 or later
 259                                 setAlign = "--align optimal"
 260                         cmd = 'parted %s %s --script mklabel gpt mkpart disk ext2 0%% 100%%' % ( setAlign, self.disk_path )
 261
 262                 else:
 263                         cmd = 'printf "8,\n;0,0\n;0,0\n;0,0\ny\n" | sfdisk -f -uS ' + self.disk_path
 264
 265                 res = system(cmd)
 266                 if not self.checkPartionPath(self.partitionPath("1")):
 267                         print "no exist : ", self.partitionPath("1")
 268                         return 1
 269                 return (res >> 8)
 270
 271         def mkfs(self):
 272                 cmd = "mkfs.ext3 "
 273                 if self.diskSize() > 4 * 1024:
 274                         cmd += "-T largefile "
 275                 cmd += "-m0 -O dir_index " + self.partitionPath("1")
 276                 res = system(cmd)
 277                 return (res >> 8)
 278
 279         def mount(self):
 280                 try:
 281                         fstab = open("/etc/fstab")
 282                 except IOError:
 283                         return -1
 284
 285                 lines = fstab.readlines()
 286                 fstab.close()
 287
 288                 res = -1
 289                 for line in lines:
 290                         parts = line.strip().split(" ")
 291                         real_path = path.realpath(parts[0])
 292                         if not real_path[-1].isdigit():
 293                                 continue
 294                         try:
 295                                 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
 296                                         cmd = "mount -t ext3 " + parts[0]
 297                                         res = system(cmd)
 298                                         break
 299                         except OSError:
 300                                 pass
 301
 302                 return (res >> 8)
 303
 304         def createMovieFolder(self):
 305                 try:
 306                         if not fileExists("/hdd", 0):
 307                                 print "not found /hdd"
 308                                 system("ln -s /media/hdd /hdd")
 309
 310                         makedirs(resolveFilename(SCOPE_HDD))
 311                 except OSError:
 312                         return -1
 313                 return 0
 314
 315         def fsck(self):
 316                 # We autocorrect any failures
 317                 # TODO: we could check if the fs is actually ext3
 318                 cmd = "fsck.ext3 -f -p " + self.partitionPath("1")
 319                 res = system(cmd)
 320                 return (res >> 8)
 321
 322         def killPartition(self, n):
 323                 part = self.partitionPath(n)
 324
 325                 if access(part, 0):
 326                         cmd = 'dd bs=512 count=3 if=/dev/zero of=' + part
 327                         res = system(cmd)
 328                 else:
 329                         res = 0
 330
 331                 return (res >> 8)
 332
 333         errorList = [ _("Everything is fine"), _("Creating partition failed"), _("Mkfs failed"), _("Mount failed"), _("Create movie folder failed"), _("Fsck failed"), _("Please Reboot"), _("Filesystem contains uncorrectable errors"), _("Unmount failed")]
 334
 335         def initialize(self):
 336                 self.unmount()
 337
 338                 # Udev tries to mount the partition immediately if there is an
 339                 # old filesystem on it when fdisk reloads the partition table.
 340                 # To prevent that, we overwrite the first 3 sectors of the
 341                 # partition, if the partition existed before. That's enough for
 342                 # ext3 at least.
 343                 self.killPartition("1")
 344
 345                 if self.createPartition() != 0:
 346                         return -1
 347
 348                 if self.mkfs() != 0:
 349                         return -2
 350
 351                 if self.mount() != 0:
 352                         return -3
 353
 354                 if self.createMovieFolder() != 0:
 355                         return -4
 356
 357                 return 0
 358
 359         def check(self):
 360                 self.unmount()
 361
 362                 res = self.fsck()
 363                 if res & 2 == 2:
 364                         return -6
 365
 366                 if res & 4 == 4:
 367                         return -7
 368
 369                 if res != 0 and res != 1:
 370                         # A sum containing 1 will also include a failure
 371                         return -5
 372
 373                 if self.mount() != 0:
 374                         return -3
 375
 376                 return 0
 377
 378         def getDeviceDir(self):
 379                 return self.dev_path
 380
 381         def getDeviceName(self):
 382                 return self.disk_path
 383
 384         # the HDD idle poll daemon.
 385         # as some harddrives have a buggy standby timer, we are doing this by hand here.
 386         # first, we disable the hardware timer. then, we check every now and then if
 387         # any access has been made to the disc. If there has been no access over a specifed time,
 388         # we set the hdd into standby.
 389         def readStats(self):
 390                 try:
 391                         l = open("/sys/block/%s/stat" % self.device).read()
 392                 except IOError:
 393                         return -1,-1
 394                 (nr_read, _, _, _, nr_write) = l.split()[:5]
 395                 return int(nr_read), int(nr_write)
 396
 397         def startIdle(self):
 398                 self.last_access = time.time()
 399                 self.last_stat = 0
 400                 self.is_sleeping = False
 401                 from enigma import eTimer
 402
 403                 # disable HDD standby timer
 404                 Console().ePopen(("hdparm", "hdparm", "-S0", self.disk_path))
 405                 self.timer = eTimer()
 406                 self.timer.callback.append(self.runIdle)
 407                 self.idle_running = True
 408                 self.setIdleTime(self.max_idle_time) # kick the idle polling loop
 409
 410         def runIdle(self):
 411                 if not self.max_idle_time:
 412                         return
 413                 t = time.time()
 414
 415                 idle_time = t - self.last_access
 416
 417                 stats = self.readStats()
 418
 419                 if stats == -1:
 420                         self.setIdleTime(0)
 421                         return
 422                 print "nr_read", stats[0], "nr_write", stats[1]
 423                 l = sum(stats)
 424                 print "sum", l, "prev_sum", self.last_stat
 425
 426                 if l != self.last_stat and l >= 0: # access
 427                         print "hdd was accessed since previous check!"
 428                         self.last_stat = l
 429                         self.last_access = t
 430                         idle_time = 0
 431                         self.is_sleeping = False
 432                 else:
 433                         print "hdd IDLE!"
 434
 435                 print "[IDLE]", idle_time, self.max_idle_time, self.is_sleeping
 436                 if idle_time >= self.max_idle_time and not self.is_sleeping:
 437                         self.setSleep()
 438                         self.is_sleeping = True
 439
 440         def setSleep(self):
 441                 Console().ePopen(("hdparm", "hdparm", "-y", self.disk_path))
 442
 443         def setIdleTime(self, idle):
 444                 self.max_idle_time = idle
 445                 if self.idle_running:
 446                         if not idle:
 447                                 self.timer.stop()
 448                         else:
 449                                 self.timer.start(idle * 100, False)  # poll 10 times per period.
 450
 451         def isSleeping(self):
 452                 return self.is_sleeping
 453
 454 class Partition:
 455         def __init__(self, mountpoint, device = None, description = "", force_mounted = False):
 456                 self.mountpoint = mountpoint
 457                 self.description = description
 458                 self.force_mounted = force_mounted
 459                 self.is_hotplug = force_mounted # so far; this might change.
 460                 self.device = device
 461
 462         def stat(self):
 463                 return statvfs(self.mountpoint)
 464
 465         def free(self):
 466                 try:
 467                         s = self.stat()
 468                         return s.f_bavail * s.f_bsize
 469                 except OSError:
 470                         return None
 471
 472         def total(self):
 473                 try:
 474                         s = self.stat()
 475                         return s.f_blocks * s.f_bsize
 476                 except OSError:
 477                         return None
 478
 479         def mounted(self):
 480                 # THANK YOU PYTHON FOR STRIPPING AWAY f_fsid.
 481                 # TODO: can os.path.ismount be used?
 482                 if self.force_mounted:
 483                         return True
 484
 485                 try:
 486                         mounts = open("/proc/mounts")
 487                 except IOError:
 488                         return False
 489
 490                 lines = mounts.readlines()
 491                 mounts.close()
 492
 493                 for line in lines:
 494                         if line.split(' ')[1] == self.mountpoint:
 495                                 return True
 496                 return False
 497
 498 DEVICEDB_SR = \
 499         {"dm8000":
 500                 {
 501                         "/devices/pci0000:01/0000:01:00.0/host0/target0:0:0/0:0:0:0": _("DVD Drive"),
 502                         "/devices/pci0000:01/0000:01:00.0/host1/target1:0:0/1:0:0:0": _("DVD Drive"),
 503                         "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/host3/target3:0:0/3:0:0:0": _("DVD Drive"),
 504                 },
 505         "dm800":
 506         {
 507         },
 508         "dm7025":
 509         {
 510         }
 511         }
 512
 513 DEVICEDB = \
 514         {"dm8000":
 515                 {
 516                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": _("Front USB Slot"),
 517                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.2/1-1.2:1.0": _("Back, upper USB Slot"),
 518                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.3/1-1.3:1.0": _("Back, lower USB Slot"),
 519                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": _("Front USB Slot"),
 520                         "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/": _("Internal USB Slot"),
 521                         "/devices/platform/brcm-ohci-1.1/usb4/4-1/4-1:1.0/": _("Internal USB Slot"),
 522                 },
 523         "dm800":
 524         {
 525                 "/devices/platform/brcm-ehci.0/usb1/1-2/1-2:1.0": "Upper USB Slot",
 526                 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1:1.0": "Lower USB Slot",
 527         },
 528         "dm7025":
 529         {
 530                 "/devices/pci0000:00/0000:00:14.1/ide1/1.0": "CF Card Slot", #hdc
 531                 "/devices/pci0000:00/0000:00:14.1/ide0/0.0": "Internal Harddisk"
 532         }
 533         }
 534
 535 class HarddiskManager:
 536         def __init__(self):
 537                 self.hdd = [ ]
 538                 self.cd = ""
 539                 self.partitions = [ ]
 540                 self.devices_scanned_on_init = [ ]
 541
 542                 self.on_partition_list_change = CList()
 543
 544                 self.enumerateBlockDevices()
 545
 546                 # currently, this is just an enumeration of what's possible,
 547                 # this probably has to be changed to support automount stuff.
 548                 # still, if stuff is mounted into the correct mountpoints by
 549                 # external tools, everything is fine (until somebody inserts
 550                 # a second usb stick.)
 551                 p = [
 552                                         ("/media/hdd", _("Harddisk")),
 553                                         ("/media/card", _("Card")),
 554                                         ("/media/cf", _("Compact Flash")),
 555                                         ("/media/mmc1", _("MMC Card")),
 556                                         ("/media/net", _("Network Mount")),
 557                                         ("/media/ram", _("Ram Disk")),
 558                                         ("/media/usb", _("USB Stick")),
 559                                         ("/", _("Internal Flash"))
 560                                 ]
 561
 562                 self.partitions.extend([ Partition(mountpoint = x[0], description = x[1]) for x in p ])
 563
 564         def getBlockDevInfo(self, blockdev):
 565                 devpath = "/sys/block/" + blockdev
 566                 error = False
 567                 removable = False
 568                 blacklisted = False
 569                 is_cdrom = False
 570                 partitions = []
 571                 try:
 572                         removable = bool(int(readFile(devpath + "/removable")))
 573                         dev = int(readFile(devpath + "/dev").split(':')[0])
 574                         if dev in (7, 31): # loop, mtdblock
 575                                 blacklisted = True
 576                         if blockdev[0:2] == 'sr':
 577                                 is_cdrom = True
 578                         if blockdev[0:2] == 'hd':
 579                                 try:
 580                                         media = readFile("/proc/ide/%s/media" % blockdev)
 581                                         if "cdrom" in media:
 582                                                 is_cdrom = True
 583                                 except IOError:
 584                                         error = True
 585                         # check for partitions
 586                         if not is_cdrom:
 587                                 for partition in listdir(devpath):
 588                                         if partition[0:len(blockdev)] != blockdev:
 589                                                 continue
 590                                         partitions.append(partition)
 591                         else:
 592                                 self.cd = blockdev
 593                 except IOError:
 594                         error = True
 595                 # check for medium
 596                 medium_found = True
 597                 try:
 598                         open("/dev/" + blockdev).close()
 599                 except IOError, err:
 600                         if err.errno == 159: # no medium present
 601                                 medium_found = False
 602
 603                 return error, blacklisted, removable, is_cdrom, partitions, medium_found
 604
 605         def enumerateBlockDevices(self):
 606                 print "enumerating block devices..."
 607                 for blockdev in listdir("/sys/block"):
 608                         error, blacklisted, removable, is_cdrom, partitions, medium_found = self.addHotplugPartition(blockdev)
 609                         if not error and not blacklisted:
 610                                 if medium_found:
 611                                         for part in partitions:
 612                                                 self.addHotplugPartition(part)
 613                                 self.devices_scanned_on_init.append((blockdev, removable, is_cdrom, medium_found))
 614
 615         def getAutofsMountpoint(self, device):
 616                 return "/autofs/%s/" % (device)
 617
 618
 619         def is_hard_mounted(self, device):
 620                 mounts = file('/proc/mounts').read().split('\n')
 621                 for x in mounts:
 622                         if x.find('/autofs') == -1 and x.find(device) != -1:
 623                                 return True
 624                 return False
 625
 626         def addHotplugPartition(self, device, physdev = None):
 627                 if not physdev:
 628                         dev, part = self.splitDeviceName(device)
 629                         try:
 630                                 physdev = path.realpath('/sys/block/' + dev + '/device')[4:]
 631                         except OSError:
 632                                 physdev = dev
 633                                 print "couldn't determine blockdev physdev for device", device
 634
 635                 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(device)
 636                 print "found block device '%s':" % device,
 637
 638                 if blacklisted:
 639                         print "blacklisted"
 640                 else:
 641                         if error:
 642                                 print "error querying properties"
 643                         elif not medium_found:
 644                                 print "no medium"
 645                         else:
 646                                 print "ok, removable=%s, cdrom=%s, partitions=%s" % (removable, is_cdrom, partitions)
 647
 648                         l = len(device)
 649                         if l:
 650                                 # see if this is a harddrive
 651                                 if not device[l-1].isdigit() and not removable and not is_cdrom:
 652                                         self.hdd.append(Harddisk(device))
 653                                         self.hdd.sort()
 654                                         SystemInfo["Harddisk"] = len(self.hdd) > 0
 655
 656                                 if (not removable or medium_found) and not self.is_hard_mounted(device):
 657                                         # device is the device name, without /dev
 658                                         # physdev is the physical device path, which we (might) use to determine the userfriendly name
 659                                         description = self.getUserfriendlyDeviceName(device, physdev)
 660                                         p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True, device = device)
 661                                         self.partitions.append(p)
 662                                         self.on_partition_list_change("add", p)
 663
 664                 return error, blacklisted, removable, is_cdrom, partitions, medium_found
 665
 666         def removeHotplugPartition(self, device):
 667                 mountpoint = self.getAutofsMountpoint(device)
 668                 for x in self.partitions[:]:
 669                         if x.mountpoint == mountpoint:
 670                                 self.partitions.remove(x)
 671                                 self.on_partition_list_change("remove", x)
 672                 l = len(device)
 673                 if l and not device[l-1].isdigit():
 674                         for hdd in self.hdd:
 675                                 if hdd.device == device:
 676                                         hdd.stop()
 677                                         self.hdd.remove(hdd)
 678                                         break
 679                         SystemInfo["Harddisk"] = len(self.hdd) > 0
 680
 681         def HDDCount(self):
 682                 return len(self.hdd)
 683
 684         def HDDList(self):
 685                 list = [ ]
 686                 for hd in self.hdd:
 687                         if hd.model() == -1:
 688                                 continue
 689                         hdd = hd.model() + " - " + hd.bus()
 690                         cap = hd.capacity()
 691                         if cap != "":
 692                                 hdd += " (" + cap + ")"
 693                         list.append((hdd, hd))
 694                 return list
 695
 696         def getCD(self):
 697                 return self.cd
 698
 699         def getMountedPartitions(self, onlyhotplug = False):
 700                 parts = [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()]
 701                 devs = set([x.device for x in parts])
 702                 for devname in devs.copy():
 703                         if not devname:
 704                                 continue
 705                         dev, part = self.splitDeviceName(devname)
 706                         if part and dev in devs: # if this is a partition and we still have the wholedisk, remove wholedisk
 707                                 devs.remove(dev)
 708
 709                 # return all devices which are not removed due to being a wholedisk when a partition exists
 710                 return [x for x in parts if not x.device or x.device in devs]
 711
 712         def splitDeviceName(self, devname):
 713                 # this works for: sdaX, hdaX, sr0 (which is in fact dev="sr0", part=""). It doesn't work for other names like mtdblock3, but they are blacklisted anyway.
 714                 dev = devname[:3]
 715                 part = devname[3:]
 716                 for p in part:
 717                         if not p.isdigit():
 718                                 return devname, 0
 719                 return dev, part and int(part) or 0
 720
 721         def getUserfriendlyDeviceName(self, dev, phys):
 722                 dev, part = self.splitDeviceName(dev)
 723                 description = "External Storage %s" % dev
 724                 have_model_descr = False
 725                 try:
 726                         description = readFile("/sys" + phys + "/model")
 727                         have_model_descr = True
 728                 except IOError, s:
 729                         print "couldn't read model: ", s
 730                 from Tools.HardwareInfo import HardwareInfo
 731                 if dev.find('sr') == 0 and dev[2].isdigit():
 732                         devicedb = DEVICEDB_SR
 733                 else:
 734                         devicedb = DEVICEDB
 735                 for physdevprefix, pdescription in devicedb.get(HardwareInfo().device_name,{}).items():
 736                         if phys.startswith(physdevprefix):
 737                                 if have_model_descr:
 738                                         description = pdescription + ' - ' + description
 739                                 else:
 740                                         description = pdescription
 741                 # not wholedisk and not partition 1
 742                 if part and part != 1:
 743                         description += " (Partition %d)" % part
 744                 return description
 745
 746         def addMountedPartition(self, device, desc):
 747                 already_mounted = False
 748                 for x in self.partitions[:]:
 749                         if x.mountpoint == device:
 750                                 already_mounted = True
 751                 if not already_mounted:
 752                         self.partitions.append(Partition(mountpoint = device, description = desc))
 753
 754         def removeMountedPartition(self, mountpoint):
 755                 for x in self.partitions[:]:
 756                         if x.mountpoint == mountpoint:
 757                                 self.partitions.remove(x)
 758                                 self.on_partition_list_change("remove", x)
 759
 760 harddiskmanager = HarddiskManager()