lars
de3280806f
plugin interface changed ("prepareForm" removed)
plugins do not raise exceptions anymore
first part of the partitioning plugin
device-specific stuff moved to CryptoBoxTools
132 lines
3.4 KiB
Python
132 lines
3.4 KiB
Python
import re
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import subprocess
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import imp
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import os
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import logging
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import CryptoBoxTools
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PartTypes = {
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"linux" : "L",
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"windows" : "0xC"}
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logger = logging.getLogger("CryptoBox")
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def doAction(hdf, cbox, **args):
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try:
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step = args["step"]
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del args["step"]
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except KeyError:
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step = "select_device"
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if step == "add_partition":
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return __actionAddPartition(hdf, cbox, args)
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if step == "del_partition":
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return __actionDelPartition(hdf, cbox, args)
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elif step == "finish":
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return __actionFinish(hdf, cbox, args)
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else: # for "select_device" and for invalid targets
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return __actionSelectDevice(hdf, cbox, args)
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def getStatus(cbox):
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return "%d.%d.%d.%d" % __getCurrentIP(cbox)
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def __isDeviceValid(device, cbox):
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if not cbox.isDeviceAllowed(device):
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return False
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if not device in CryptoBoxTools.getParentBlockDevices():
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return False
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def __actionSelectDevice(hdf, cbox, args):
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block_devices = [e
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for e in CryptoBoxTools.getParentBlockDevices()
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if cbox.isDeviceAllowed(e)]
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counter = 0
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for a in block_devices:
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hdf["Data.Plugins.partition.BlockDevices.%d" % counter] = a
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cbox.log.debug("found a suitable block device: %s" % a)
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counter += 1
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return "select_device"
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def __actionAddPartition(hdf, cbox, args):
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try:
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device = args["block_device"]
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except KeyError:
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return __actionSelectDevice(hdf, cbox, args)
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#FIXME: the following check should obviuosly get reversed
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if __isDeviceValid(device, cbox): return __actionSelectDevice(hdf, cbox, args)
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size = __getDeviceSize(device)
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hdf["Data.Plugins.partition.Device"] = device
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hdf["Data.Plugins.partition.Device.Size"] = size
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parts = __getPartitionsFromArgs(args, size)
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__setPartitionData(hdf, parts, size)
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return "set_partitions"
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def __actionDelPartition(hdf, cbox, args):
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try:
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device = args["block_device"]
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except KeyError:
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return __actionSelectDevice(hdf, cbox, args)
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#FIXME: the following check should obviuosly get reversed
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if __isDeviceValid(device, cbox): return __actionSelectDevice(hdf, cbox, args)
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size = __getDeviceSize(device)
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hdf["Data.Plugins.partition.Device"] = device
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hdf["Data.Plugins.partition.Device.Size"] = size
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parts = __getPartitionsFromArgs(args, size)
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__setPartitionData(hdf, parts[:-1], size)
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return "set_partitions"
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def __setPartitionData(hdf, parts, size):
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availSize = size
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i = 0
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for part in parts:
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logger.debug(part)
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hdf["Data.Plugins.partition.Parts.%d.Size" % i] = part["size"]
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hdf["Data.Plugins.partition.Parts.%d.Type" % i] = part["type"]
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availSize -= part["size"]
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i += 1
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hdf["Data.Plugins.partition.availSize"] = availSize
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for t in PartTypes.keys():
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hdf["Data.Plugins.partition.Types.%s" % t] = t
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def __getPartitionsFromArgs(args, maxSize):
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parts = []
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done = False
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availSize = maxSize
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i = -1
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while not done:
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i += 1
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try:
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size = int(args["part%d_size" % i])
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partType = args["part%d_type" % i]
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if int(size) > availSize: continue
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if int(size) <= 0: continue
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if not partType in PartTypes.keys(): continue
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parts.append({"size":size, "type":partType})
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availSize -= size
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except TypeError:
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pass
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except KeyError:
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done = True
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return parts
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def __getDeviceSize(device):
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rdev = os.stat(device).st_rdev
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minor = os.minor(rdev)
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major = os.major(rdev)
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for f in file("/proc/partitions"):
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try:
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elements = f.split()
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if len(elements) != 4: continue
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if (int(elements[0]) == major) and (int(elements[1]) == minor):
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return int(elements[2])
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except ValueError:
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pass
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return 0
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