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
8 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 if path.realpath(parts[0]).startswith(self.dev_path):
134 stat = statvfs(parts[1])
137 return stat.f_bfree/1000 * stat.f_bsize/1000
141 def numPartitions(self):
143 if self.type == self.DEVTYPE_UDEV:
145 devdir = listdir('/dev')
148 for filename in devdir:
149 if filename.startswith(self.device):
152 elif self.type == self.DEVTYPE_DEVFS:
154 idedir = listdir(self.dev_path)
157 for filename in idedir:
158 if filename.startswith("disc"):
160 if filename.startswith("part"):
166 mounts = open("/proc/mounts")
170 lines = mounts.readlines()
176 parts = line.strip().split(" ")
177 if path.realpath(parts[0]).startswith(self.dev_path):
178 cmd = ' ' . join([cmd, parts[1]])
183 def createPartition(self):
184 cmd = 'printf "0,\n;\n;\n;\ny\n" | /sbin/sfdisk -f ' + self.disk_path
189 cmd = "/sbin/mkfs.ext3 "
190 if self.diskSize() > 4 * 1024:
191 cmd += "-T largefile "
192 cmd += "-m0 -O dir_index " + self.partitionPath("1")
198 fstab = open("/etc/fstab")
202 lines = fstab.readlines()
207 parts = line.strip().split(" ")
208 if path.realpath(parts[0]) == self.partitionPath("1"):
209 cmd = "/bin/mount -t ext3 " + parts[0]
215 def createMovieFolder(self):
217 makedirs(resolveFilename(SCOPE_HDD))
223 # We autocorrect any failures
224 # TODO: we could check if the fs is actually ext3
225 cmd = "/sbin/fsck.ext3 -f -p " + self.partitionPath("1")
229 def killPartition(self, n):
230 part = self.partitionPath(n)
233 cmd = '/bin/dd bs=512 count=3 if=/dev/zero of=' + part
240 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")]
242 def initialize(self):
245 # Udev tries to mount the partition immediately if there is an
246 # old filesystem on it when fdisk reloads the partition table.
247 # To prevent that, we overwrite the first 3 sectors of the
248 # partition, if the partition existed before. That's enough for
250 self.killPartition("1")
252 if self.createPartition() != 0:
258 if self.mount() != 0:
261 if self.createMovieFolder() != 0:
276 if res != 0 and res != 1:
277 # A sum containing 1 will also include a failure
280 if self.mount() != 0:
285 def getDeviceDir(self):
288 def getDeviceName(self):
289 return self.disk_path
291 # the HDD idle poll daemon.
292 # as some harddrives have a buggy standby timer, we are doing this by hand here.
293 # first, we disable the hardware timer. then, we check every now and then if
294 # any access has been made to the disc. If there has been no access over a specifed time,
295 # we set the hdd into standby.
297 l = readFile("/sys/block/%s/stat" % self.device)
298 (nr_read, _, _, _, nr_write) = l.split()[:5]
299 return int(nr_read), int(nr_write)
302 self.last_access = time.time()
304 self.is_sleeping = False
305 from enigma import eTimer
307 # disable HDD standby timer
308 Console().ePopen(("hdparm", "hdparm", "-S0", self.disk_path))
309 self.timer = eTimer()
310 self.timer.callback.append(self.runIdle)
311 self.idle_running = True
312 self.setIdleTime(self.max_idle_time) # kick the idle polling loop
315 if not self.max_idle_time:
319 idle_time = t - self.last_access
321 stats = self.readStats()
322 print "nr_read", stats[0], "nr_write", stats[1]
324 print "sum", l, "prev_sum", self.last_stat
326 if l != self.last_stat: # access
327 print "hdd was accessed since previous check!"
331 self.is_sleeping = False
335 print "[IDLE]", idle_time, self.max_idle_time, self.is_sleeping
336 if idle_time >= self.max_idle_time and not self.is_sleeping:
338 self.is_sleeping = True
341 Console().ePopen(("hdparm", "hdparm", "-y", self.disk_path))
343 def setIdleTime(self, idle):
344 self.max_idle_time = idle
345 if self.idle_running:
349 self.timer.start(idle * 100, False) # poll 10 times per period.
351 def isSleeping(self):
352 return self.is_sleeping
355 def __init__(self, mountpoint, device = None, description = "", force_mounted = False):
356 self.mountpoint = mountpoint
357 self.description = description
358 self.force_mounted = force_mounted
359 self.is_hotplug = force_mounted # so far; this might change.
363 return statvfs(self.mountpoint)
368 return s.f_bavail * s.f_bsize
375 return s.f_blocks * s.f_bsize
380 # THANK YOU PYTHON FOR STRIPPING AWAY f_fsid.
381 # TODO: can os.path.ismount be used?
382 if self.force_mounted:
386 mounts = open("/proc/mounts")
390 lines = mounts.readlines()
394 if line.split(' ')[1] == self.mountpoint:
402 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": "Front USB Slot",
403 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.2/1-1.2:1.0": "Back, upper USB Slot",
404 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.3/1-1.3:1.0": "Back, lower USB Slot",
405 "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/host1/target1:0:0/1:0:0:0": "DVD Drive",
410 "/devices/platform/brcm-ehci.0/usb1/1-2/1-2:1.0": "Upper USB Slot",
411 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1:1.0": "Lower USB Slot",
416 "/devices/pci0000:00/0000:00:14.1/ide1/1.0": "CF Card Slot", #hdc
417 "/devices/pci0000:00/0000:00:14.1/ide0/0.0": "Internal Harddisk"
421 class HarddiskManager:
425 self.partitions = [ ]
427 self.on_partition_list_change = CList()
429 self.enumerateBlockDevices()
431 # currently, this is just an enumeration of what's possible,
432 # this probably has to be changed to support automount stuff.
433 # still, if stuff is mounted into the correct mountpoints by
434 # external tools, everything is fine (until somebody inserts
435 # a second usb stick.)
437 ("/media/hdd", _("Harddisk")),
438 ("/media/card", _("Card")),
439 ("/media/cf", _("Compact Flash")),
440 ("/media/mmc1", _("MMC Card")),
441 ("/media/net", _("Network Mount")),
442 ("/media/ram", _("Ram Disk")),
443 ("/media/usb", _("USB Stick")),
444 ("/", _("Internal Flash"))
447 self.partitions.extend([ Partition(mountpoint = x[0], description = x[1]) for x in p ])
449 def getBlockDevInfo(self, blockdev):
450 devpath = "/sys/block/" + blockdev
457 removable = bool(int(readFile(devpath + "/removable")))
458 dev = int(readFile(devpath + "/dev").split(':')[0])
459 if dev in (7, 31): # loop, mtdblock
461 if blockdev[0:2] == 'sr':
463 if blockdev[0:2] == 'hd':
465 media = readFile("/proc/ide/%s/media" % blockdev)
470 # check for partitions
472 for partition in listdir(devpath):
473 if partition[0:len(blockdev)] != blockdev:
475 partitions.append(partition)
483 open("/dev/" + blockdev).close()
485 if err.errno == 159: # no medium present
488 return error, blacklisted, removable, is_cdrom, partitions, medium_found
490 def enumerateBlockDevices(self):
491 print "enumerating block devices..."
492 for blockdev in listdir("/sys/block"):
493 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(blockdev)
494 print "found block device '%s':" % blockdev,
496 print "error querying properties"
499 elif not medium_found:
502 print "ok, removable=%s, cdrom=%s, partitions=%s, device=%s" % (removable, is_cdrom, partitions, blockdev)
504 self.addHotplugPartition(blockdev)
505 for part in partitions:
506 self.addHotplugPartition(part)
508 def getAutofsMountpoint(self, device):
509 return "/autofs/%s/" % (device)
511 def addHotplugPartition(self, device, physdev = None):
513 dev, part = self.splitDeviceName(device)
515 physdev = path.realpath('/sys/block/' + dev + '/device')[4:]
518 print "couldn't determine blockdev physdev for device", device
520 # device is the device name, without /dev
521 # physdev is the physical device path, which we (might) use to determine the userfriendly name
522 description = self.getUserfriendlyDeviceName(device, physdev)
524 p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True, device = device)
525 self.partitions.append(p)
526 self.on_partition_list_change("add", p)
528 # see if this is a harddrive
530 if l and not device[l-1].isdigit():
531 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(device)
532 if not blacklisted and not removable and not is_cdrom and medium_found:
533 self.hdd.append(Harddisk(device))
535 SystemInfo["Harddisk"] = len(self.hdd) > 0
537 def removeHotplugPartition(self, device):
538 mountpoint = self.getAutofsMountpoint(device)
539 for x in self.partitions[:]:
540 if x.mountpoint == mountpoint:
541 self.partitions.remove(x)
542 self.on_partition_list_change("remove", x)
544 if l and not device[l-1].isdigit():
546 if hdd.device == device:
550 SystemInfo["Harddisk"] = len(self.hdd) > 0
558 hdd = hd.model() + " - " + hd.bus()
561 hdd += " (" + cap + ")"
562 list.append((hdd, hd))
568 def getMountedPartitions(self, onlyhotplug = False):
569 parts = [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()]
570 devs = set([x.device for x in parts])
571 for devname in devs.copy():
574 dev, part = self.splitDeviceName(devname)
575 if part and dev in devs: # if this is a partition and we still have the wholedisk, remove wholedisk
578 # return all devices which are not removed due to being a wholedisk when a partition exists
579 return [x for x in parts if not x.device or x.device in devs]
581 def splitDeviceName(self, devname):
582 # 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.
588 return dev, part and int(part) or 0
590 def getUserfriendlyDeviceName(self, dev, phys):
591 dev, part = self.splitDeviceName(dev)
592 description = "External Storage %s" % dev
594 description = readFile("/sys" + phys + "/model")
596 print "couldn't read model: ", s
597 from Tools.HardwareInfo import HardwareInfo
598 for physdevprefix, pdescription in DEVICEDB.get(HardwareInfo().device_name,{}).items():
599 if phys.startswith(physdevprefix):
600 description = pdescription
602 # not wholedisk and not partition 1
603 if part and part != 1:
604 description += " (Partition %d)" % part
607 def addMountedPartition(self, device, desc):
608 already_mounted = False
609 for x in self.partitions[:]:
610 if x.mountpoint == device:
611 already_mounted = True
612 if not already_mounted:
613 self.partitions.append(Partition(mountpoint = device, description = desc))
615 def removeMountedPartition(self, mountpoint):
616 for x in self.partitions[:]:
617 if x.mountpoint == mountpoint:
618 self.partitions.remove(x)
619 self.on_partition_list_change("remove", x)
621 harddiskmanager = HarddiskManager()