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#!/usr/bin/python
# Copyright (C) 2011 Gluster, Inc. <http://www.gluster.com>
# This file is part of Gluster Management Gateway (GlusterMG).
#
# GlusterMG 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 3 of the License,
# or (at your option) any later version.
#
# GlusterMG 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 this program. If not, see
# <http://www.gnu.org/licenses/>.
#
import os
import sys
p1 = os.path.abspath(os.path.dirname(sys.argv[0]))
p2 = "%s/common" % os.path.dirname(p1)
if not p1 in sys.path:
sys.path.append(p1)
if not p2 in sys.path:
sys.path.append(p2)
import glob
import Globals
import Utils
import FsTabUtils
def _stripDev(device):
if Utils.isString(device) and device.startswith("/dev/"):
return device[5:]
return device
def _addDev(deviceName):
if Utils.isString(deviceName) and not deviceName.startswith("/dev/"):
return "/dev/" + deviceName
return deviceName
def getDeviceName(device):
if type(device) == type([]):
nameList = []
for d in device:
nameList.append(_stripDev(d))
return nameList
return _stripDev(device)
def getDevice(deviceName):
if Utils.isString(deviceName):
return _addDev(deviceName)
if type(deviceName) == type([]):
nameList = []
for d in deviceName:
nameList.append(_addDev(d))
return nameList
return _addDev(deviceName)
def getDiskPartitionByUuid(uuid):
uuidFile = "/dev/disk/by-uuid/%s" % uuid
if os.path.exists(uuidFile):
return getDeviceName(os.path.realpath(uuidFile))
return None
def getUuidByDiskPartition(device):
for uuidFile in glob.glob("/dev/disk/by-uuid/*"):
if os.path.realpath(uuidFile) == device:
return os.path.basename(uuidFile)
return None
def getDiskPartitionByLabel(label):
## TODO: Finding needs to be enhanced
labelFile = "/dev/disk/by-label/%s" % label
if os.path.exists(labelFile):
if os.path.islink(labelFile):
return getDeviceName(os.path.realpath(labelFile))
return None
def getDiskPartitionLabel(device):
rv = Utils.runCommand("e2label %s" % device, output=True, root=True)
if rv["Status"] == 0:
return rv["Stdout"].strip()
return False
def getDiskInfo(diskNameList=None):
procPartitionsDict = getProcPartitions()
diskDict = {}
for name, values in procPartitionsDict.iteritems():
values["Description"] = None
values["Uuid"] = None
values["FsType"] = None
values["MountPoint"] = None
values["SpaceInUse"] = None
values["Member"] = None
## extras ?!?!
values["Init"] = False
values["Status"] = None
values["Interface"] = None
values["DriveType"] = None
values["Type"] = None
values["FsVersion"] = None
values["ReadOnlyAccess"] = None
device = getDevice(name)
values["Uuid"] = getUuidByDiskPartition(device)
rv = Utils.runCommand("blkid -c /dev/null -o value %s" % device, output=True, root=True)
if rv["Status"] == 0:
lines = rv["Stdout"].strip().split("\n")
values["FsType"] = lines[-1].strip()
values["MountPoint"] = getDeviceMountPoint(device)
if values["FsType"]:
values["Init"] = True
if values["MountPoint"]:
rv = Utils.runCommand(["df", values["MountPoint"]], output=True)
if rv["Status"] == 0:
try:
values["SpaceInUse"] = long(rv["Stdout"].split("\n")[1].split()[2])
except IndexError, e:
pass
except ValueError, e:
pass
if os.path.isdir("/sys/block/%s" % name):
model = Utils.readFile("/sys/block/%s/device/model" % name)
vendor = Utils.readFile("/sys/block/%s/device/vendor" % name)
values["Description"] = "%s %s" % (model.strip(), vendor.strip())
values["Partitions"] = {}
diskDict[name] = values
for diskName in diskDict.keys():
del procPartitionsDict[diskName]
for partName, values in procPartitionsDict.iteritems():
if os.path.isdir("/sys/block/%s/%s" % (diskName, partName)):
diskDict[diskName]["Partitions"][partName] = values
procMdstatDict = getProcMdstat()
for name, values in procMdstatDict.iteritems():
try:
diskDict[name]["Description"] = "Software Raid Array - %s - %s" % (values["Type"], values["Status"])
diskDict[name]["Member"] = values["Member"]
except KeyError, e:
pass
diskNameList = getDeviceName(diskNameList)
if Utils.isString(diskNameList):
diskNameList = [diskNameList]
if not diskNameList:
return diskDict
outputDict = {}
for diskName in list(set(diskDict.keys()).intersection(set(diskNameList))):
outputDict[diskName] = diskDict[diskName]
return outputDict
def isDataDiskPartitionFormatted(device):
rv = Utils.runCommand("blkid -c /dev/null -o value %s" % device, output=True, root=True)
if rv["Status"] != 0:
return False
uuid = getUuidByDiskPartition(device)
if not uuid:
return False
for fsTabEntry in FsTabUtils.readFsTab():
if fsTabEntry["Device"] == ("UUID=%s" % uuid) or fsTabEntry["Device"] == device:
return True
return False
def isDiskInFormatting(device):
DEVICE_FORMAT_LOCK_FILE = "/var/lock/%s.lock" % device
return os.path.exists(DEVICE_FORMAT_LOCK_FILE)
def getDeviceMountPoint(device):
lines = Utils.readFile("/proc/mounts", lines=True)
uuid = getUuidByDiskPartition(device)
for line in lines:
tokens = line.split()
if tokens[0] == device or (uuid and tokens[0].endswith(uuid)):
return tokens[1]
return None
def getProcPartitions():
procPartitionsDict = {}
s = Utils.readFile("/proc/partitions", lines=True)
for line in s[2:]:
tokens = line.strip().split()
procPartitionsDict[tokens[3]] = {"Size" : long(tokens[2])}
return procPartitionsDict
def getProcMdstat():
raidArrayDict = {}
lines = Utils.readFile("/proc/mdstat", lines=True)
for line in lines[1:]:
tokens = line.strip().split()
if not tokens:
continue
if tokens[0].startswith("md"):
raidArrayDict[tokens[0]] = {"Status" : tokens[2], "Type" : tokens[3], "Member" : [token.split('[')[0] for token in tokens[4:]]}
return raidArrayDict
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