1 from os import system, listdir, statvfs, popen, makedirs, stat, major, minor, path, access
2 from Tools.Directories import SCOPE_HDD, resolveFilename
3 from Tools.CList import CList
4 from SystemInfo import SystemInfo
6 from Components.Console import Console
9 rdev = stat(path).st_rdev
10 return (major(rdev),minor(rdev))
12 def readFile(filename):
14 data = file.read().strip()
22 def __init__(self, device):
25 if access("/dev/.udev", 0):
26 self.type = self.DEVTYPE_UDEV
27 elif access("/dev/.devfsd", 0):
28 self.type = self.DEVTYPE_DEVFS
30 print "Unable to determine structure of /dev"
32 self.max_idle_time = 0
33 self.idle_running = False
38 self.phys_path = path.realpath(self.sysfsPath('device'))
40 if self.type == self.DEVTYPE_UDEV:
41 self.dev_path = '/dev/' + self.device
42 self.disk_path = self.dev_path
44 elif self.type == self.DEVTYPE_DEVFS:
45 tmp = readFile(self.sysfsPath('dev')).split(':')
48 for disc in listdir("/dev/discs"):
49 dev_path = path.realpath('/dev/discs/' + disc)
50 disk_path = dev_path + '/disc'
52 rdev = stat(disk_path).st_rdev
55 if s_major == major(rdev) and s_minor == minor(rdev):
56 self.dev_path = dev_path
57 self.disk_path = disk_path
60 print "new Harddisk", self.device, '->', self.dev_path, '->', self.disk_path
64 return self.device < ob.device
66 def partitionPath(self, n):
67 if self.type == self.DEVTYPE_UDEV:
68 return self.dev_path + n
69 elif self.type == self.DEVTYPE_DEVFS:
70 return self.dev_path + '/part' + n
72 def sysfsPath(self, filename):
73 return path.realpath('/sys/block/' + self.device + '/' + filename)
78 self.timer.callback.remove(self.runIdle)
82 if self.type == self.DEVTYPE_UDEV:
83 ide_cf = False # FIXME
84 elif self.type == self.DEVTYPE_DEVFS:
85 ide_cf = self.device[:2] == "hd" and "host0" not in self.dev_path
87 internal = "pci" in self.phys_path
98 line = readFile(self.sysfsPath('size'))
103 return cap / 1000 * 512 / 1000
106 cap = self.diskSize()
109 return "%d.%03d GB" % (cap/1000, cap%1000)
112 if self.device[:2] == "hd":
113 return readFile('/proc/ide/' + self.device + '/model')
114 elif self.device[:2] == "sd":
115 vendor = readFile(self.sysfsPath('device/vendor'))
116 model = readFile(self.sysfsPath('device/model'))
117 return vendor + '(' + model + ')'
119 assert False, "no hdX or sdX"
123 mounts = open("/proc/mounts")
127 lines = mounts.readlines()
131 parts = line.strip().split(" ")
132 real_path = path.realpath(parts[0])
133 if not real_path[-1].isdigit():
136 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
137 stat = statvfs(parts[1])
138 return stat.f_bfree/1000 * stat.f_bsize/1000
143 def numPartitions(self):
145 if self.type == self.DEVTYPE_UDEV:
147 devdir = listdir('/dev')
150 for filename in devdir:
151 if filename.startswith(self.device):
154 elif self.type == self.DEVTYPE_DEVFS:
156 idedir = listdir(self.dev_path)
159 for filename in idedir:
160 if filename.startswith("disc"):
162 if filename.startswith("part"):
168 mounts = open("/proc/mounts")
172 lines = mounts.readlines()
178 parts = line.strip().split(" ")
179 real_path = path.realpath(parts[0])
180 if not real_path[-1].isdigit():
183 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
184 cmd = ' ' . join([cmd, parts[1]])
192 def createPartition(self):
193 cmd = 'printf "0,\n;\n;\n;\ny\n" | sfdisk -f ' + self.disk_path
199 if self.diskSize() > 4 * 1024:
200 cmd += "-T largefile "
201 cmd += "-m0 -O dir_index " + self.partitionPath("1")
207 fstab = open("/etc/fstab")
211 lines = fstab.readlines()
216 parts = line.strip().split(" ")
217 real_path = path.realpath(parts[0])
218 if not real_path[-1].isdigit():
221 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
222 cmd = "mount -t ext3 " + parts[0]
230 def createMovieFolder(self):
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()
340 print "nr_read", stats[0], "nr_write", stats[1]
342 print "sum", l, "prev_sum", self.last_stat
344 if l != self.last_stat and l >= 0: # access
345 print "hdd was accessed since previous check!"
349 self.is_sleeping = False
353 print "[IDLE]", idle_time, self.max_idle_time, self.is_sleeping
354 if idle_time >= self.max_idle_time and not self.is_sleeping:
356 self.is_sleeping = True
359 Console().ePopen(("hdparm", "hdparm", "-y", self.disk_path))
361 def setIdleTime(self, idle):
362 self.max_idle_time = idle
363 if self.idle_running:
367 self.timer.start(idle * 100, False) # poll 10 times per period.
369 def isSleeping(self):
370 return self.is_sleeping
373 def __init__(self, mountpoint, device = None, description = "", force_mounted = False):
374 self.mountpoint = mountpoint
375 self.description = description
376 self.force_mounted = force_mounted
377 self.is_hotplug = force_mounted # so far; this might change.
381 return statvfs(self.mountpoint)
386 return s.f_bavail * s.f_bsize
393 return s.f_blocks * s.f_bsize
398 # THANK YOU PYTHON FOR STRIPPING AWAY f_fsid.
399 # TODO: can os.path.ismount be used?
400 if self.force_mounted:
404 mounts = open("/proc/mounts")
408 lines = mounts.readlines()
412 if line.split(' ')[1] == self.mountpoint:
420 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": "Front USB Slot",
421 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.2/1-1.2:1.0": "Back, upper USB Slot",
422 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.3/1-1.3:1.0": "Back, lower USB Slot",
423 "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/host1/target1:0:0/1:0:0:0": "DVD Drive",
428 "/devices/platform/brcm-ehci.0/usb1/1-2/1-2:1.0": "Upper USB Slot",
429 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1:1.0": "Lower USB Slot",
434 "/devices/pci0000:00/0000:00:14.1/ide1/1.0": "CF Card Slot", #hdc
435 "/devices/pci0000:00/0000:00:14.1/ide0/0.0": "Internal Harddisk"
439 class HarddiskManager:
443 self.partitions = [ ]
445 self.on_partition_list_change = CList()
447 self.enumerateBlockDevices()
449 # currently, this is just an enumeration of what's possible,
450 # this probably has to be changed to support automount stuff.
451 # still, if stuff is mounted into the correct mountpoints by
452 # external tools, everything is fine (until somebody inserts
453 # a second usb stick.)
455 ("/media/hdd", _("Harddisk")),
456 ("/media/card", _("Card")),
457 ("/media/cf", _("Compact Flash")),
458 ("/media/mmc1", _("MMC Card")),
459 ("/media/net", _("Network Mount")),
460 ("/media/ram", _("Ram Disk")),
461 ("/media/usb", _("USB Stick")),
462 ("/", _("Internal Flash"))
465 self.partitions.extend([ Partition(mountpoint = x[0], description = x[1]) for x in p ])
467 def getBlockDevInfo(self, blockdev):
468 devpath = "/sys/block/" + blockdev
475 removable = bool(int(readFile(devpath + "/removable")))
476 dev = int(readFile(devpath + "/dev").split(':')[0])
477 if dev in (7, 31): # loop, mtdblock
479 if blockdev[0:2] == 'sr':
481 if blockdev[0:2] == 'hd':
483 media = readFile("/proc/ide/%s/media" % blockdev)
488 # check for partitions
490 for partition in listdir(devpath):
491 if partition[0:len(blockdev)] != blockdev:
493 partitions.append(partition)
501 open("/dev/" + blockdev).close()
503 if err.errno == 159: # no medium present
506 return error, blacklisted, removable, is_cdrom, partitions, medium_found
508 def enumerateBlockDevices(self):
509 print "enumerating block devices..."
510 for blockdev in listdir("/sys/block"):
511 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(blockdev)
512 print "found block device '%s':" % blockdev,
514 print "error querying properties"
517 elif not medium_found:
520 print "ok, removable=%s, cdrom=%s, partitions=%s, device=%s" % (removable, is_cdrom, partitions, blockdev)
522 self.addHotplugPartition(blockdev)
523 for part in partitions:
524 self.addHotplugPartition(part)
526 def getAutofsMountpoint(self, device):
527 return "/autofs/%s/" % (device)
529 def addHotplugPartition(self, device, physdev = None):
531 dev, part = self.splitDeviceName(device)
533 physdev = path.realpath('/sys/block/' + dev + '/device')[4:]
536 print "couldn't determine blockdev physdev for device", device
538 # device is the device name, without /dev
539 # physdev is the physical device path, which we (might) use to determine the userfriendly name
540 description = self.getUserfriendlyDeviceName(device, physdev)
542 p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True, device = device)
543 self.partitions.append(p)
544 self.on_partition_list_change("add", p)
546 # see if this is a harddrive
548 if l and not device[l-1].isdigit():
549 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(device)
550 if not blacklisted and not removable and not is_cdrom and medium_found:
551 self.hdd.append(Harddisk(device))
553 SystemInfo["Harddisk"] = len(self.hdd) > 0
555 def removeHotplugPartition(self, device):
556 mountpoint = self.getAutofsMountpoint(device)
557 for x in self.partitions[:]:
558 if x.mountpoint == mountpoint:
559 self.partitions.remove(x)
560 self.on_partition_list_change("remove", x)
562 if l and not device[l-1].isdigit():
564 if hdd.device == device:
568 SystemInfo["Harddisk"] = len(self.hdd) > 0
576 hdd = hd.model() + " - " + hd.bus()
579 hdd += " (" + cap + ")"
580 list.append((hdd, hd))
586 def getMountedPartitions(self, onlyhotplug = False):
587 parts = [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()]
588 devs = set([x.device for x in parts])
589 for devname in devs.copy():
592 dev, part = self.splitDeviceName(devname)
593 if part and dev in devs: # if this is a partition and we still have the wholedisk, remove wholedisk
596 # return all devices which are not removed due to being a wholedisk when a partition exists
597 return [x for x in parts if not x.device or x.device in devs]
599 def splitDeviceName(self, devname):
600 # 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.
606 return dev, part and int(part) or 0
608 def getUserfriendlyDeviceName(self, dev, phys):
609 dev, part = self.splitDeviceName(dev)
610 description = "External Storage %s" % dev
612 description = readFile("/sys" + phys + "/model")
614 print "couldn't read model: ", s
615 from Tools.HardwareInfo import HardwareInfo
616 for physdevprefix, pdescription in DEVICEDB.get(HardwareInfo().device_name,{}).items():
617 if phys.startswith(physdevprefix):
618 description = pdescription
620 # not wholedisk and not partition 1
621 if part and part != 1:
622 description += " (Partition %d)" % part
625 def addMountedPartition(self, device, desc):
626 already_mounted = False
627 for x in self.partitions[:]:
628 if x.mountpoint == device:
629 already_mounted = True
630 if not already_mounted:
631 self.partitions.append(Partition(mountpoint = device, description = desc))
633 def removeMountedPartition(self, mountpoint):
634 for x in self.partitions[:]:
635 if x.mountpoint == mountpoint:
636 self.partitions.remove(x)
637 self.on_partition_list_change("remove", x)
639 harddiskmanager = HarddiskManager()