1 from os import system, listdir, statvfs, popen, makedirs, stat, major, minor, path, access
3 from Tools.Directories import SCOPE_HDD, resolveFilename, fileExists
5 from Tools.CList import CList
6 from SystemInfo import SystemInfo
8 from Components.Console import Console
10 def readFile(filename):
12 data = file.read().strip()
20 def __init__(self, device):
23 if access("/dev/.udev", 0):
24 self.type = self.DEVTYPE_UDEV
25 elif access("/dev/.devfsd", 0):
26 self.type = self.DEVTYPE_DEVFS
28 print "Unable to determine structure of /dev"
30 self.max_idle_time = 0
31 self.idle_running = False
36 self.phys_path = path.realpath(self.sysfsPath('device'))
38 if self.type == self.DEVTYPE_UDEV:
39 self.dev_path = '/dev/' + self.device
40 self.disk_path = self.dev_path
42 elif self.type == self.DEVTYPE_DEVFS:
43 tmp = readFile(self.sysfsPath('dev')).split(':')
46 for disc in listdir("/dev/discs"):
47 dev_path = path.realpath('/dev/discs/' + disc)
48 disk_path = dev_path + '/disc'
50 rdev = stat(disk_path).st_rdev
53 if s_major == major(rdev) and s_minor == minor(rdev):
54 self.dev_path = dev_path
55 self.disk_path = disk_path
58 print "new Harddisk", self.device, '->', self.dev_path, '->', self.disk_path
62 return self.device < ob.device
64 def partitionPath(self, n):
65 if self.type == self.DEVTYPE_UDEV:
66 return self.dev_path + n
67 elif self.type == self.DEVTYPE_DEVFS:
68 return self.dev_path + '/part' + n
70 def sysfsPath(self, filename):
71 return path.realpath('/sys/block/' + self.device + '/' + filename)
76 self.timer.callback.remove(self.runIdle)
80 if self.type == self.DEVTYPE_UDEV:
81 ide_cf = False # FIXME
82 elif self.type == self.DEVTYPE_DEVFS:
83 ide_cf = self.device[:2] == "hd" and "host0" not in self.dev_path
85 internal = "pci" in self.phys_path
98 line = readFile(self.sysfsPath('size'))
100 harddiskmanager.removeHotplugPartition(self.device)
101 print "error remove",self.device
107 return cap / 1000 * 512 / 1000
110 cap = self.diskSize()
113 return "%d.%03d GB" % (cap/1000, cap%1000)
118 if self.device[:2] == "hd":
119 return readFile('/proc/ide/' + self.device + '/model')
120 elif self.device[:2] == "sd":
121 vendor = readFile(self.sysfsPath('device/vendor'))
122 model = readFile(self.sysfsPath('device/model'))
123 return vendor + '(' + model + ')'
125 assert False, "no hdX or sdX"
127 harddiskmanager.removeHotplugPartition(self.device)
128 print "error remove",self.device
133 mounts = open("/proc/mounts")
137 lines = mounts.readlines()
141 parts = line.strip().split(" ")
142 if path.realpath(parts[0]).startswith(self.dev_path):
144 stat = statvfs(parts[1])
147 return stat.f_bfree/1000 * stat.f_bsize/1000
151 def numPartitions(self):
153 if self.type == self.DEVTYPE_UDEV:
155 devdir = listdir('/dev')
158 for filename in devdir:
159 if filename.startswith(self.device):
162 elif self.type == self.DEVTYPE_DEVFS:
164 idedir = listdir(self.dev_path)
167 for filename in idedir:
168 if filename.startswith("disc"):
170 if filename.startswith("part"):
176 mounts = open("/proc/mounts")
180 lines = mounts.readlines()
186 parts = line.strip().split(" ")
187 if path.realpath(parts[0]).startswith(self.dev_path):
188 cmd = ' ' . join([cmd, parts[1]])
193 def createPartition(self):
194 cmd = 'printf "0,\n;\n;\n;\ny\n" | sfdisk -f ' + self.disk_path
200 if self.diskSize() > 4 * 1024:
201 cmd += "-T largefile "
202 cmd += "-m0 -O dir_index " + self.partitionPath("1")
208 fstab = open("/etc/fstab")
212 lines = fstab.readlines()
217 parts = line.strip().split(" ")
218 if path.realpath(parts[0]) == self.partitionPath("1"):
219 cmd = "mount -t ext3 " + parts[0]
225 def createMovieFolder(self):
228 if not fileExists("/hdd", 0):
229 print "not found /hdd"
230 system("ln -s /media/hdd /hdd")
232 makedirs(resolveFilename(SCOPE_HDD))
238 # We autocorrect any failures
239 # TODO: we could check if the fs is actually ext3
240 cmd = "fsck.ext3 -f -p " + self.partitionPath("1")
244 def killPartition(self, n):
245 part = self.partitionPath(n)
248 cmd = 'dd bs=512 count=3 if=/dev/zero of=' + part
255 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")]
257 def initialize(self):
260 # Udev tries to mount the partition immediately if there is an
261 # old filesystem on it when fdisk reloads the partition table.
262 # To prevent that, we overwrite the first 3 sectors of the
263 # partition, if the partition existed before. That's enough for
265 self.killPartition("1")
267 if self.createPartition() != 0:
273 if self.mount() != 0:
276 if self.createMovieFolder() != 0:
291 if res != 0 and res != 1:
292 # A sum containing 1 will also include a failure
295 if self.mount() != 0:
300 def getDeviceDir(self):
303 def getDeviceName(self):
304 return self.disk_path
306 # the HDD idle poll daemon.
307 # as some harddrives have a buggy standby timer, we are doing this by hand here.
308 # first, we disable the hardware timer. then, we check every now and then if
309 # any access has been made to the disc. If there has been no access over a specifed time,
310 # we set the hdd into standby.
313 l = open("/sys/block/%s/stat" % self.device).read()
316 (nr_read, _, _, _, nr_write) = l.split()[:5]
317 return int(nr_read), int(nr_write)
320 self.last_access = time.time()
322 self.is_sleeping = False
323 from enigma import eTimer
325 # disable HDD standby timer
326 Console().ePopen(("hdparm", "hdparm", "-S0", self.disk_path))
327 self.timer = eTimer()
328 self.timer.callback.append(self.runIdle)
329 self.idle_running = True
330 self.setIdleTime(self.max_idle_time) # kick the idle polling loop
333 if not self.max_idle_time:
337 idle_time = t - self.last_access
339 stats = self.readStats()
344 print "nr_read", stats[0], "nr_write", stats[1]
346 print "sum", l, "prev_sum", self.last_stat
348 if l != self.last_stat and l >= 0: # access
349 print "hdd was accessed since previous check!"
353 self.is_sleeping = False
357 print "[IDLE]", idle_time, self.max_idle_time, self.is_sleeping
358 if idle_time >= self.max_idle_time and not self.is_sleeping:
360 self.is_sleeping = True
363 Console().ePopen(("hdparm", "hdparm", "-y", self.disk_path))
365 def setIdleTime(self, idle):
366 self.max_idle_time = idle
367 if self.idle_running:
371 self.timer.start(idle * 100, False) # poll 10 times per period.
373 def isSleeping(self):
374 return self.is_sleeping
377 def __init__(self, mountpoint, device = None, description = "", force_mounted = False):
378 self.mountpoint = mountpoint
379 self.description = description
380 self.force_mounted = force_mounted
381 self.is_hotplug = force_mounted # so far; this might change.
385 return statvfs(self.mountpoint)
390 return s.f_bavail * s.f_bsize
397 return s.f_blocks * s.f_bsize
402 # THANK YOU PYTHON FOR STRIPPING AWAY f_fsid.
403 # TODO: can os.path.ismount be used?
404 if self.force_mounted:
408 mounts = open("/proc/mounts")
412 lines = mounts.readlines()
416 if line.split(' ')[1] == self.mountpoint:
424 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": "Front USB Slot",
425 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.2/1-1.2:1.0": "Back, upper USB Slot",
426 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.3/1-1.3:1.0": "Back, lower USB Slot",
427 "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/host1/target1:0:0/1:0:0:0": "DVD Drive",
432 "/devices/platform/brcm-ehci.0/usb1/1-2/1-2:1.0": "Upper USB Slot",
433 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1:1.0": "Lower USB Slot",
438 "/devices/pci0000:00/0000:00:14.1/ide1/1.0": "CF Card Slot", #hdc
439 "/devices/pci0000:00/0000:00:14.1/ide0/0.0": "Internal Harddisk"
443 class HarddiskManager:
447 self.partitions = [ ]
449 self.on_partition_list_change = CList()
451 self.enumerateBlockDevices()
453 # currently, this is just an enumeration of what's possible,
454 # this probably has to be changed to support automount stuff.
455 # still, if stuff is mounted into the correct mountpoints by
456 # external tools, everything is fine (until somebody inserts
457 # a second usb stick.)
459 ("/media/hdd", _("Harddisk")),
460 ("/media/card", _("Card")),
461 ("/media/cf", _("Compact Flash")),
462 ("/media/mmc1", _("MMC Card")),
463 ("/media/net", _("Network Mount")),
464 ("/media/ram", _("Ram Disk")),
465 ("/media/usb", _("USB Stick")),
466 ("/", _("Internal Flash"))
469 self.partitions.extend([ Partition(mountpoint = x[0], description = x[1]) for x in p ])
471 def getBlockDevInfo(self, blockdev):
472 devpath = "/sys/block/" + blockdev
479 removable = bool(int(readFile(devpath + "/removable")))
480 dev = int(readFile(devpath + "/dev").split(':')[0])
481 if dev in (7, 31): # loop, mtdblock
483 if blockdev[0:2] == 'sr':
485 if blockdev[0:2] == 'hd':
487 media = readFile("/proc/ide/%s/media" % blockdev)
492 # check for partitions
494 for partition in listdir(devpath):
495 if partition[0:len(blockdev)] != blockdev:
497 partitions.append(partition)
505 open("/dev/" + blockdev).close()
507 if err.errno == 159: # no medium present
510 return error, blacklisted, removable, is_cdrom, partitions, medium_found
512 def enumerateBlockDevices(self):
513 print "enumerating block devices..."
514 for blockdev in listdir("/sys/block"):
515 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(blockdev)
516 print "found block device '%s':" % blockdev,
518 print "error querying properties"
521 elif not medium_found:
524 print "ok, removable=%s, cdrom=%s, partitions=%s, device=%s" % (removable, is_cdrom, partitions, blockdev)
526 self.addHotplugPartition(blockdev)
527 for part in partitions:
528 self.addHotplugPartition(part)
530 def getAutofsMountpoint(self, device):
531 return "/media/%s/" % (device)
534 def addHotplugPartition(self, device, physdev = None):
536 dev, part = self.splitDeviceName(device)
538 physdev = path.realpath('/sys/block/' + dev + '/device')[4:]
541 print "couldn't determine blockdev physdev for device", device
543 # device is the device name, without /dev
544 # physdev is the physical device path, which we (might) use to determine the userfriendly name
545 description = self.getUserfriendlyDeviceName(device, physdev)
547 p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True, device = device)
548 self.partitions.append(p)
549 self.on_partition_list_change("add", p)
551 # see if this is a harddrive
553 if l and not device[l-1].isdigit():
554 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(device)
555 if not blacklisted and not removable and not is_cdrom and medium_found:
556 self.hdd.append(Harddisk(device))
558 SystemInfo["Harddisk"] = len(self.hdd) > 0
560 def removeHotplugPartition(self, device):
561 mountpoint = self.getAutofsMountpoint(device)
562 for x in self.partitions[:]:
563 if x.mountpoint == mountpoint:
564 self.partitions.remove(x)
565 self.on_partition_list_change("remove", x)
567 if l and not device[l-1].isdigit():
569 if hdd.device == device:
573 SystemInfo["Harddisk"] = len(self.hdd) > 0
584 hdd = hd.model() + " - " + hd.bus()
587 hdd += " (" + cap + ")"
588 list.append((hdd, hd))
594 def getMountedPartitions(self, onlyhotplug = False):
595 parts = [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()]
596 devs = set([x.device for x in parts])
597 for devname in devs.copy():
600 dev, part = self.splitDeviceName(devname)
601 if part and dev in devs: # if this is a partition and we still have the wholedisk, remove wholedisk
604 # return all devices which are not removed due to being a wholedisk when a partition exists
605 return [x for x in parts if not x.device or x.device in devs]
607 def splitDeviceName(self, devname):
608 # 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.
614 return dev, part and int(part) or 0
616 def getUserfriendlyDeviceName(self, dev, phys):
617 dev, part = self.splitDeviceName(dev)
618 description = "External Storage %s" % dev
620 description = readFile("/sys" + phys + "/model")
622 print "couldn't read model: ", s
623 from Tools.HardwareInfo import HardwareInfo
624 for physdevprefix, pdescription in DEVICEDB.get(HardwareInfo().device_name,{}).items():
625 if phys.startswith(physdevprefix):
626 description = pdescription
628 # not wholedisk and not partition 1
629 if part and part != 1:
630 description += " (Partition %d)" % part
633 def addMountedPartition(self, device, desc):
634 already_mounted = False
635 for x in self.partitions[:]:
636 if x.mountpoint == device:
637 already_mounted = True
638 if not already_mounted:
639 self.partitions.append(Partition(mountpoint = device, description = desc))
641 def removeMountedPartition(self, mountpoint):
642 for x in self.partitions[:]:
643 if x.mountpoint == mountpoint:
644 self.partitions.remove(x)
645 self.on_partition_list_change("remove", x)
647 harddiskmanager = HarddiskManager()