X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/8b53d866f6e2a7770a9ebeb4eb4693fb73447e6d..c668e555f7f57a878b8295abfeeb87d0f4550fbd:/lib/python/Components/Harddisk.py

diff --git a/lib/python/Components/Harddisk.py b/lib/python/Components/Harddisk.py
index 0009a6b8..ad7f28de 100644
--- a/lib/python/Components/Harddisk.py
+++ b/lib/python/Components/Harddisk.py
@@ -1,4 +1,8 @@
-import os
+from os import system, listdir, statvfs, popen, makedirs, readlink, stat, major, minor
+from Tools.Directories import SCOPE_HDD, resolveFilename
+from Tools.CList import CList
+from SystemInfo import SystemInfo
+import string
 
 def tryOpen(filename):
 	try:
@@ -7,48 +11,76 @@ def tryOpen(filename):
 		return ""
 	return procFile
 
-def num2prochdx(num):
-	return "/proc/ide/hd" + ("a","b","c","d","e","f","g","h","i")[num] + "/"
-
 class Harddisk:
-	def __init__(self, index):
-		self.index = index
+	def __init__(self, device):
+		self.device = device
+		procfile = tryOpen("/sys/block/"+self.device+"/dev")
+		tmp = procfile.readline().split(':')
+		s_major = int(tmp[0])
+		s_minor = int(tmp[1])
+		for disc in listdir("/dev/discs"):
+			path = readlink('/dev/discs/'+disc)
+			devidex = '/dev/discs/'+disc+'/'
+			devidex2 = '/dev'+path[2:]+'/'
+			disc = devidex2+'disc'
+			ret = stat(disc).st_rdev
+			if s_major == major(ret) and s_minor == minor(ret):
+				self.devidex = devidex
+				self.devidex2 = devidex2
+				print "new Harddisk", device, '->', self.devidex, '->', self.devidex2
+				break
 
-		host = self.index / 4
-		bus = (self.index & 2)
-		target = (self.index & 1)
+	def __lt__(self, ob):
+		return self.device < ob.device
 
-		self.prochdx = num2prochdx(index)
-		self.devidex = "/dev/ide/host%d/bus%d/target%d/lun0/" % (host, bus, target)
+	def bus(self):
+		ide_cf = self.device.find("hd") == 0 and self.devidex2.find("host0") == -1 # 7025 specific
+		internal = self.device.find("hd") == 0
+		if ide_cf:
+			ret = "External (CF)"
+		elif internal:
+			ret = "Internal"
+		else:
+			ret = "External"
+		return ret
 
-	def hdindex(self):
-		return self.index
-	def capacity(self):
-		procfile = tryOpen(self.prochdx + "capacity")
-		
+	def diskSize(self):
+		procfile = tryOpen("/sys/block/"+self.device+"/size")
 		if procfile == "":
-			return -1
-
+			return 0
 		line = procfile.readline()
 		procfile.close()
-		
 		try:
 			cap = int(line)
 		except:
-			return -1
-		
-		return cap	
-						
-	def model(self):
-		procfile = tryOpen(self.prochdx + "model")
-		
-		if procfile == "":
-			return ""
+			return 0;
+		return cap / 1000 * 512 / 1000
 
-		line = procfile.readline()
-		procfile.close()
+	def capacity(self):
+		cap = self.diskSize()
+		if cap == 0:
+			return ""
+		return "%d.%03d GB" % (cap/1024, cap%1024)
 
-		return line.strip()
+	def model(self):
+		if self.device.find("hd") == 0:
+			procfile = tryOpen("/proc/ide/"+self.device+"/model")
+			if procfile == "":
+				return ""
+			line = procfile.readline()
+			procfile.close()
+			return line.strip()
+		elif self.device.find("sd") == 0:
+			procfile = tryOpen("/sys/block/"+self.device+"/device/vendor")
+			if procfile == "":
+				return ""
+			vendor = procfile.readline().strip()
+			procfile.close()
+			procfile = tryOpen("/sys/block/"+self.device+"/device/model")
+			model = procfile.readline().strip()
+			return vendor+'('+model+')'
+		else:
+			assert False, "no hdX or sdX"
 
 	def free(self):
 		procfile = tryOpen("/proc/mounts")
@@ -64,17 +96,17 @@ class Harddisk:
 			if line.startswith(self.devidex):
 				parts = line.strip().split(" ")
 				try:
-					stat = os.statvfs(parts[1])
+					stat = statvfs(parts[1])
 				except OSError:
 					continue
 				free = stat.f_bfree/1000 * stat.f_bsize/1000
 				break
 		procfile.close()
-		return free		
+		return free
 
 	def numPartitions(self):
 		try:
-			idedir = os.listdir(self.devidex)
+			idedir = listdir(self.devidex)
 		except OSError:
 			return -1
 		numPart = -1
@@ -85,45 +117,331 @@ class Harddisk:
 				numPart += 1
 		return numPart
 
+	def unmount(self):
+		procfile = tryOpen("/proc/mounts")
+
+		if procfile == "":
+			return -1
+
+		cmd = "/bin/umount"
+
+		for line in procfile:
+			if line.startswith(self.devidex):
+				parts = line.split()
+				cmd = ' '.join([cmd, parts[1]])
+
+		procfile.close()
+
+		res = system(cmd)
+		return (res >> 8)
+
+	def createPartition(self):
+		cmd = "/sbin/sfdisk -f " + self.devidex + "disc"
+		sfdisk = popen(cmd, "w")
+		sfdisk.write("0,\n;\n;\n;\ny\n")
+		sfdisk.close()
+		return 0
+
+	def mkfs(self):
+		cmd = "/sbin/mkfs.ext3 "
+		if self.diskSize() > 4 * 1024:
+			cmd += "-T largefile "
+		cmd += "-m0 " + self.devidex + "part1"
+		res = system(cmd)
+		return (res >> 8)
+
+	def mount(self):
+		cmd = "/bin/mount -t ext3 " + self.devidex + "part1"
+		res = system(cmd)
+		return (res >> 8)
+
+	def createMovieFolder(self):
+		try:
+			makedirs(resolveFilename(SCOPE_HDD))
+		except OSError:
+			return -1
+		return 0
+
+	def fsck(self):
+		# We autocorrect any failures
+		# TODO: we could check if the fs is actually ext3
+		cmd = "/sbin/fsck.ext3 -f -p " + self.devidex + "part1"
+		res = system(cmd)
+		return (res >> 8)
+
+	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")]
+
+	def initialize(self):
+		self.unmount()
+
+		if self.createPartition() != 0:
+			return -1
+
+		if self.mkfs() != 0:
+			return -2
+
+		if self.mount() != 0:
+			return -3
+
+		if self.createMovieFolder() != 0:
+			return -4
 
-def existHDD(num):
-	mediafile = tryOpen(num2prochdx(num) + "media")
+		return 0
 
-	if mediafile == "":
-		return -1
+	def check(self):
+		self.unmount()
 
-	line = mediafile.readline()
-	mediafile.close()
+		res = self.fsck()
+		if res & 2 == 2:
+			return -6
+
+		if res & 4 == 4:
+			return -7
+
+		if res != 0 and res != 1:
+			# A sum containing 1 will also include a failure
+			return -5
+
+		if self.mount() != 0:
+			return -3
+
+		return 0
+	
+	def getDeviceDir(self):
+		return self.devidex
 	
-	if line.startswith("disk"):
-		return 1
+	def getDeviceName(self):
+		return self.getDeviceDir() + "disc"
+
+class Partition:
+	def __init__(self, mountpoint, device = None, description = "", force_mounted = False):
+		self.mountpoint = mountpoint
+		self.description = description
+		self.force_mounted = force_mounted
+		self.is_hotplug = force_mounted # so far; this might change.
+		self.device = device
+
+	def stat(self):
+		return statvfs(self.mountpoint)
+
+	def free(self):
+		try:
+			s = self.stat()
+			return s.f_bavail * s.f_bsize
+		except OSError:
+			return None
 	
-	return -1
+	def total(self):
+		try:
+			s = self.stat()
+			return s.f_blocks * s.f_bsize
+		except OSError:
+			return None
+
+	def mounted(self):
+		# THANK YOU PYTHON FOR STRIPPING AWAY f_fsid.
+		# TODO: can os.path.ismount be used?
+		if self.force_mounted:
+			return True
+		procfile = tryOpen("/proc/mounts")
+		for n in procfile.readlines():
+			if n.split(' ')[1] == self.mountpoint:
+				return True
+		return False
+
+DEVICEDB =  \
+	{
+		# dm8000:
+		"/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": "Front USB Slot",
+		"/devices/platform/brcm-ehci.0/usb1/1-1/1-1.2/1-1.2:1.0": "Back, upper USB Slot",
+		"/devices/platform/brcm-ehci.0/usb1/1-1/1-1.3/1-1.3:1.0": "Back, lower USB Slot",
+		"/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/host1/target1:0:0/1:0:0:0": "DVD Drive",
+	}
 
 class HarddiskManager:
 	def __init__(self):
-		hddNum = 0
 		self.hdd = [ ]
-		while 1:
-			if existHDD(hddNum) == 1:
-				self.hdd.append(Harddisk(hddNum))
-			hddNum += 1
+		self.cd = ""
+		self.partitions = [ ]
+		
+		self.on_partition_list_change = CList()
+		
+		self.enumerateBlockDevices()
+		
+		# currently, this is just an enumeration of what's possible,
+		# this probably has to be changed to support automount stuff.
+		# still, if stuff is mounted into the correct mountpoints by
+		# external tools, everything is fine (until somebody inserts 
+		# a second usb stick.)
+		p = [
+					("/media/hdd", _("Harddisk")), 
+					("/media/card", _("Card")), 
+					("/media/cf", _("Compact Flash")),
+					("/media/mmc1", _("MMC Card")),
+					("/media/net", _("Network Mount")),
+					("/media/ram", _("Ram Disk")),
+					("/media/usb", _("USB Stick")),
+					("/", _("Internal Flash"))
+				]
+		
+		for x in p:
+			self.partitions.append(Partition(mountpoint = x[0], description = x[1]))
+
+	def getBlockDevInfo(self, blockdev):
+		devpath = "/sys/block/" + blockdev
+		error = False
+		removable = False
+		blacklisted = False
+		is_cdrom = False
+		partitions = []
+		try:
+			removable = bool(int(open(devpath + "/removable").read()))
+			dev = int(open(devpath + "/dev").read().split(':')[0])
+			if dev in [7, 31]: # loop, mtdblock
+				blacklisted = True
+			if blockdev[0:2] == 'sr':
+				is_cdrom = True
+			if blockdev[0:2] == 'hd':
+				try:
+					media = open("/proc/ide/%s/media" % blockdev).read()
+					if media.find("cdrom") != -1:
+						is_cdrom = True
+				except IOError:
+					error = True
+			# check for partitions
+			if not is_cdrom:
+				for partition in listdir(devpath):
+					if partition[0:len(blockdev)] != blockdev:
+						continue
+					partitions.append(partition)
+			else:
+				self.cd = blockdev
+		except IOError:
+			error = True
+		# check for medium
+		medium_found = True
+		try:
+			open("/dev/" + blockdev).close()
+		except IOError, err:
+			if err.errno == 159: # no medium present
+				medium_found = False
 			
-			if hddNum > 8:
-				break
+		return error, blacklisted, removable, is_cdrom, partitions, medium_found
+
+	def enumerateBlockDevices(self):
+		print "enumerating block devices..."
+		for blockdev in listdir("/sys/block"):
+			error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(blockdev)
+			print "found block device '%s':" % blockdev, 
+			if error:
+				print "error querying properties"
+			elif blacklisted:
+				print "blacklisted"
+			elif not medium_found:
+				print "no medium"
+			else:
+				print "ok, removable=%s, cdrom=%s, partitions=%s, device=%s" % (removable, is_cdrom, partitions, blockdev)
+
+				self.addHotplugPartition(blockdev)
+				for part in partitions:
+					self.addHotplugPartition(part)
+
+	def getAutofsMountpoint(self, device):
+		return "/autofs/%s/" % (device)
+
+	def addHotplugPartition(self, device, physdev = None):
+		if not physdev:
+			dev, part = self.splitDeviceName(device)
+			try:
+				physdev = readlink("/sys/block/" + dev + "/device")[5:]
+			except OSError:
+				physdev = dev
+				print "couldn't determine blockdev physdev for device", device
+
+		# device is the device name, without /dev 
+		# physdev is the physical device path, which we (might) use to determine the userfriendly name
+		description = self.getUserfriendlyDeviceName(device, physdev)
 		
+		p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True, device = device)
+		self.partitions.append(p)
+		self.on_partition_list_change("add", p)
+
+		# see if this is a harddrive
+		l = len(device)
+		if l and device[l-1] not in string.digits:
+			error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(device)
+			if not blacklisted and not removable and not is_cdrom and medium_found:
+				self.hdd.append(Harddisk(device))
+				self.hdd.sort()
+				SystemInfo["Harddisk"] = len(self.hdd) > 0
+
+	def removeHotplugPartition(self, device):
+		mountpoint = self.getAutofsMountpoint(device)
+		for x in self.partitions[:]:
+			if x.mountpoint == mountpoint:
+				self.partitions.remove(x)
+				self.on_partition_list_change("remove", x)
+		l = len(device)
+		if l and device[l-1] not in string.digits:
+			idx = 0
+			for hdd in self.hdd:
+				if hdd.device == device:
+					del self.hdd[idx]
+					break
+			SystemInfo["Harddisk"] = len(self.hdd) > 0
+
+	def HDDCount(self):
+		return len(self.hdd)
+
 	def HDDList(self):
 		list = [ ]
 		for hd in self.hdd:
-			cap = hd.capacity() / 1000 * 512 / 1000
-			hdd = hd.model() + " (" 
-			if hd.index & 1:
-				hdd += "slave"
-			else:	
-				hdd += "master"
-			if cap > 0:
-				hdd += ", %d,%d GB" % (cap/1024, cap%1024)
-			hdd += ")"
-
+			hdd = hd.model() + " - " + hd.bus()
+			cap = hd.capacity()
+			if cap != "":
+				hdd += " (" + cap + ")"
 			list.append((hdd, hd))
 		return list
+
+	def getCD(self):
+		return self.cd
+
+	def getMountedPartitions(self, onlyhotplug = False):
+		parts = [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()]
+		devs = set([x.device for x in parts])
+		for devname in devs.copy():
+			if not devname:
+				continue
+			dev, part = self.splitDeviceName(devname)
+			if part and dev in devs: # if this is a partition and we still have the wholedisk, remove wholedisk
+				devs.remove(dev)
+
+		# return all devices which are not removed due to being a wholedisk when a partition exists
+		return [x for x in parts if not x.device or x.device in devs]
+
+	def splitDeviceName(self, devname):
+		# 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.
+		dev = devname[:3]
+		part = devname[3:]
+		for p in part:
+			if p not in string.digits:
+				return devname, 0
+		return dev, part and int(part) or 0
+
+	def getUserfriendlyDeviceName(self, dev, phys):
+		dev, part = self.splitDeviceName(dev)
+		description = "External Storage %s" % dev
+		try:
+			description = open("/sys" + phys + "/model").read().strip()
+		except IOError, s:
+			print "couldn't read model: ", s
+		for physdevprefix, pdescription in DEVICEDB.items():
+			if phys.startswith(physdevprefix):
+				description = pdescription
+
+		# not wholedisk and not partition 1
+		if part and part != 1:
+			description += " (Partition %d)" % part
+		return description
+
+harddiskmanager = HarddiskManager()