cryptonas-archive/v0.3.5/plugins/partition/root_action.py
2009-07-18 04:12:08 +00:00

134 lines
3.8 KiB
Python
Executable file

#!/usr/bin/env python
#
# Copyright 2006 sense.lab e.V.
#
# This file is part of the CryptoBox.
#
# The CryptoBox is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# The CryptoBox is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the CryptoBox; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
__revision__ = "$Id$"
## necessary: otherwise CryptoBoxRootActions.py will refuse to execute this script
PLUGIN_TYPE = "cryptobox"
BLKDEV_BIN = "/sbin/blockdev"
SFDISK_BIN = "/sbin/sfdisk"
MKFS_BIN = "/sbin/mkfs"
LABEL_BIN = "/sbin/e2label"
import subprocess
import re
import sys
import os
def __partitionDevice(device):
## do not use the "-q" flag, as this spoils the exit code of sfdisk (seems to be a bug)
proc = subprocess.Popen(
shell = False,
args = [
SFDISK_BIN,
"-uM",
device])
proc.wait()
return proc.returncode == 0
def __rereadPartitions(device):
proc = subprocess.Popen(
shell = False,
args = [
BLKDEV_BIN,
"--rereadpt",
device])
proc.wait()
return proc.returncode == 0
def __formatPartition(device, type):
##TODO: This function is *probably* no longer used, since
##the user "cryptobox" is now a member of group "disk", but
##now (right before a release) is not the best time to remove it.
import time, threading
result = True
def formatting():
proc = subprocess.Popen(
shell = False,
stdin = subprocess.PIPE,
stdout = subprocess.PIPE,
stderr = subprocess.PIPE,
args = [
MKFS_BIN,
"-t", type,
device])
proc.wait()
## TODO: very ugly way of communication: it assumes, that failures are fast - success is slow
if proc.returncode == 0:
time.sleep(1)
return True
else:
return False
thread = threading.Thread()
thread.setDaemon(True)
thread.run = formatting
thread.start()
time.sleep(0.5)
return thread.isAlive()
def __labelPartition(device, label):
proc = subprocess.Popen(
shell = False,
args = [
LABEL_BIN,
device,
label])
proc.wait()
return proc.returncode == 0
if __name__ == "__main__":
args = sys.argv[1:]
self_bin =sys.argv[0]
if len(args) == 0:
sys.stderr.write("%s: no argument supplied\n" % self_bin)
sys.exit(1)
try:
if args[0] == "partition":
if len(args) != 2: raise "InvalidArgNum"
result = __partitionDevice(args[1])
elif args[0] == "format":
if len(args) != 3: raise "InvalidArgNum"
result = __formatPartition(args[1], args[2])
elif args[0] == "label":
if len(args) != 3: raise "InvalidArgNum"
result = __labelPartition(args[1], args[2])
elif args[0] == "rereadpt":
if len(args) != 2: raise "InvalidArgNum"
result = __rereadPartitions(args[1])
else:
sys.stderr.write("%s: invalid action (%s)\n" % (self_bin, args[0]))
sys.exit(1)
if result:
sys.exit(0)
else:
sys.exit(1)
except "InvalidArgNum":
sys.stderr.write("%s: invalid number of arguments (%s)\n" % (self_bin, args))
sys.exit(1)