# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible 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.
#
# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.

import os
import sys
import stat
import array
import errno
import fcntl
import fnmatch
import glob
import platform
import re
import signal
import socket
import struct
import datetime
import getpass
import pwd
import ConfigParser
import StringIO

from string import maketrans

try:
    import selinux
    HAVE_SELINUX=True
except ImportError:
    HAVE_SELINUX=False

try:
    import json
    # Detect python-json which is incompatible and fallback to simplejson in
    # that case
    try:
        json.loads
        json.dumps
    except AttributeError:
        raise ImportError
except ImportError:
    import simplejson as json


# --------------------------------------------------------------
# timeout function to make sure some fact gathering
# steps do not exceed a time limit

class TimeoutError(Exception):
    pass

def timeout(seconds=10, error_message="Timer expired"):
    def decorator(func):
        def _handle_timeout(signum, frame):
            raise TimeoutError(error_message)

        def wrapper(*args, **kwargs):
            signal.signal(signal.SIGALRM, _handle_timeout)
            signal.alarm(seconds)
            try:
                result = func(*args, **kwargs)
            finally:
                signal.alarm(0)
            return result

        return wrapper

    return decorator

# --------------------------------------------------------------

class Facts(object):
    """
    This class should only attempt to populate those facts that
    are mostly generic to all systems.  This includes platform facts,
    service facts (e.g. ssh keys or selinux), and distribution facts.
    Anything that requires extensive code or may have more than one
    possible implementation to establish facts for a given topic should
    subclass Facts.
    """

    # i86pc is a Solaris and derivatives-ism
    _I386RE = re.compile(r'i([3456]86|86pc)')
    # For the most part, we assume that platform.dist() will tell the truth.
    # This is the fallback to handle unknowns or exceptions
    OSDIST_LIST = ( ('/etc/oracle-release', 'OracleLinux'),
                    ('/etc/redhat-release', 'RedHat'),
                    ('/etc/vmware-release', 'VMwareESX'),
                    ('/etc/openwrt_release', 'OpenWrt'),
                    ('/etc/system-release', 'OtherLinux'),
                    ('/etc/alpine-release', 'Alpine'),
                    ('/etc/release', 'Solaris'),
                    ('/etc/arch-release', 'Archlinux'),
                    ('/etc/SuSE-release', 'SuSE'),
                    ('/etc/os-release', 'SuSE'),
                    ('/etc/gentoo-release', 'Gentoo'),
                    ('/etc/os-release', 'Debian'),
                    ('/etc/lsb-release', 'Mandriva'),
                    ('/etc/os-release', 'NA'),
                )
    SELINUX_MODE_DICT = { 1: 'enforcing', 0: 'permissive', -1: 'disabled' }

    # A list of dicts.  If there is a platform with more than one
    # package manager, put the preferred one last.  If there is an
    # ansible module, use that as the value for the 'name' key.
    PKG_MGRS = [ { 'path' : '/usr/bin/yum',         'name' : 'yum' },
                 { 'path' : '/usr/bin/dnf',         'name' : 'dnf' },
                 { 'path' : '/usr/bin/apt-get',     'name' : 'apt' },
                 { 'path' : '/usr/bin/zypper',      'name' : 'zypper' },
                 { 'path' : '/usr/sbin/urpmi',      'name' : 'urpmi' },
                 { 'path' : '/usr/bin/pacman',      'name' : 'pacman' },
                 { 'path' : '/bin/opkg',            'name' : 'opkg' },
                 { 'path' : '/opt/local/bin/pkgin', 'name' : 'pkgin' },
                 { 'path' : '/opt/local/bin/port',  'name' : 'macports' },
                 { 'path' : '/usr/local/bin/brew',  'name' : 'homebrew' },
                 { 'path' : '/sbin/apk',            'name' : 'apk' },
                 { 'path' : '/usr/sbin/pkg',        'name' : 'pkgng' },
                 { 'path' : '/usr/sbin/swlist',     'name' : 'SD-UX' },
                 { 'path' : '/usr/bin/emerge',      'name' : 'portage' },
                 { 'path' : '/usr/sbin/pkgadd',     'name' : 'svr4pkg' },
                 { 'path' : '/usr/bin/pkg',         'name' : 'pkg' },
    ]

    def __init__(self, load_on_init=True):

        self.facts = {}

        if load_on_init:
            self.get_platform_facts()
            self.get_distribution_facts()
            self.get_cmdline()
            self.get_public_ssh_host_keys()
            self.get_selinux_facts()
            self.get_fips_facts()
            self.get_pkg_mgr_facts()
            self.get_lsb_facts()
            self.get_date_time_facts()
            self.get_user_facts()
            self.get_local_facts()
            self.get_env_facts()
            self.get_dns_facts()

    def populate(self):
        return self.facts

    # Platform
    # platform.system() can be Linux, Darwin, Java, or Windows
    def get_platform_facts(self):
        self.facts['system'] = platform.system()
        self.facts['kernel'] = platform.release()
        self.facts['machine'] = platform.machine()
        self.facts['python_version'] = platform.python_version()
        self.facts['fqdn'] = socket.getfqdn()
        self.facts['hostname'] = platform.node().split('.')[0]
        self.facts['nodename'] = platform.node()
        self.facts['domain'] = '.'.join(self.facts['fqdn'].split('.')[1:])
        arch_bits = platform.architecture()[0]
        self.facts['userspace_bits'] = arch_bits.replace('bit', '')
        if self.facts['machine'] == 'x86_64':
            self.facts['architecture'] = self.facts['machine']
            if self.facts['userspace_bits'] == '64':
                self.facts['userspace_architecture'] = 'x86_64'
            elif self.facts['userspace_bits'] == '32':
                self.facts['userspace_architecture'] = 'i386'
        elif Facts._I386RE.search(self.facts['machine']):
            self.facts['architecture'] = 'i386'
            if self.facts['userspace_bits'] == '64':
                self.facts['userspace_architecture'] = 'x86_64'
            elif self.facts['userspace_bits'] == '32':
                self.facts['userspace_architecture'] = 'i386'
        else:
            self.facts['architecture'] = self.facts['machine']
        if self.facts['system'] == 'Linux':
            self.get_distribution_facts()
        elif self.facts['system'] == 'AIX':
            # Attempt to use getconf to figure out architecture
            # fall back to bootinfo if needed
            if module.get_bin_path('getconf'):
                rc, out, err = module.run_command([module.get_bin_path('getconf'),
                                                   'MACHINE_ARCHITECTURE'])
                data = out.split('\n')
                self.facts['architecture'] = data[0]
            else:
                rc, out, err = module.run_command([module.get_bin_path('bootinfo'),
                                                   '-p'])
                data = out.split('\n')
                self.facts['architecture'] = data[0]
        elif self.facts['system'] == 'OpenBSD':
            self.facts['architecture'] = platform.uname()[5]

    def get_local_facts(self):

        fact_path = module.params.get('fact_path', None)
        if not fact_path or not os.path.exists(fact_path):
            return

        local = {}
        for fn in sorted(glob.glob(fact_path + '/*.fact')):
            # where it will sit under local facts
            fact_base = os.path.basename(fn).replace('.fact','')
            if stat.S_IXUSR & os.stat(fn)[stat.ST_MODE]:
                # run it
                # try to read it as json first
                # if that fails read it with ConfigParser
                # if that fails, skip it
                rc, out, err = module.run_command(fn)
            else:
                out = get_file_content(fn, default='')

            # load raw json
            fact = 'loading %s' % fact_base
            try:
                fact = json.loads(out)
            except ValueError, e:
                # load raw ini
                cp = ConfigParser.ConfigParser()
                try:
                    cp.readfp(StringIO.StringIO(out))
                except ConfigParser.Error, e:
                    fact="error loading fact - please check content"
                else:
                    fact = {}
                    #print cp.sections()
                    for sect in cp.sections():
                        if sect not in fact:
                            fact[sect] = {}
                        for opt in cp.options(sect):
                            val = cp.get(sect, opt)
                            fact[sect][opt]=val

            local[fact_base] = fact
        if not local:
            return
        self.facts['local'] = local

    # platform.dist() is deprecated in 2.6
    # in 2.6 and newer, you should use platform.linux_distribution()
    def get_distribution_facts(self):

        # A list with OS Family members
        OS_FAMILY = dict(
            RedHat = 'RedHat', Fedora = 'RedHat', CentOS = 'RedHat', Scientific = 'RedHat',
            SLC = 'RedHat', Ascendos = 'RedHat', CloudLinux = 'RedHat', PSBM = 'RedHat',
            OracleLinux = 'RedHat', OVS = 'RedHat', OEL = 'RedHat', Amazon = 'RedHat',
            XenServer = 'RedHat', Ubuntu = 'Debian', Debian = 'Debian', Raspbian = 'Debian', SLES = 'Suse',
            SLED = 'Suse', openSUSE = 'Suse', SuSE = 'Suse', Gentoo = 'Gentoo', Funtoo = 'Gentoo',
            Archlinux = 'Archlinux', Mandriva = 'Mandrake', Mandrake = 'Mandrake',
            Solaris = 'Solaris', Nexenta = 'Solaris', OmniOS = 'Solaris', OpenIndiana = 'Solaris',
            SmartOS = 'Solaris', AIX = 'AIX', Alpine = 'Alpine', MacOSX = 'Darwin',
            FreeBSD = 'FreeBSD', HPUX = 'HP-UX'
        )

        # TODO: Rewrite this to use the function references in a dict pattern
        # as it's much cleaner than this massive if-else
        if self.facts['system'] == 'AIX':
            self.facts['distribution'] = 'AIX'
            rc, out, err = module.run_command("/usr/bin/oslevel")
            data = out.split('.')
            self.facts['distribution_version'] = data[0]
            self.facts['distribution_release'] = data[1]
        elif self.facts['system'] == 'HP-UX':
            self.facts['distribution'] = 'HP-UX'
            rc, out, err = module.run_command("/usr/sbin/swlist |egrep 'HPUX.*OE.*[AB].[0-9]+\.[0-9]+'", use_unsafe_shell=True)
            data = re.search('HPUX.*OE.*([AB].[0-9]+\.[0-9]+)\.([0-9]+).*', out)
            if data:
                self.facts['distribution_version'] = data.groups()[0]
                self.facts['distribution_release'] = data.groups()[1]
        elif self.facts['system'] == 'Darwin':
            self.facts['distribution'] = 'MacOSX'
            rc, out, err = module.run_command("/usr/bin/sw_vers -productVersion")
            data = out.split()[-1]
            self.facts['distribution_version'] = data
        elif self.facts['system'] == 'FreeBSD':
            self.facts['distribution'] = 'FreeBSD'
            self.facts['distribution_release'] = platform.release()
            self.facts['distribution_version'] = platform.version()
        elif self.facts['system'] == 'NetBSD':
            self.facts['distribution'] = 'NetBSD'
            self.facts['distribution_release'] = platform.release()
            self.facts['distribution_version'] = platform.version()
        elif self.facts['system'] == 'OpenBSD':
            self.facts['distribution'] = 'OpenBSD'
            self.facts['distribution_release'] = platform.release()
            rc, out, err = module.run_command("/sbin/sysctl -n kern.version")
            match = re.match('OpenBSD\s[0-9]+.[0-9]+-(\S+)\s.*', out)
            if match:
                self.facts['distribution_version'] = match.groups()[0]
            else:
                self.facts['distribution_version'] = 'release'
        else:
            dist = platform.dist()
            self.facts['distribution'] = dist[0].capitalize() or 'NA'
            self.facts['distribution_version'] = dist[1] or 'NA'
            self.facts['distribution_major_version'] = dist[1].split('.')[0] or 'NA'
            self.facts['distribution_release'] = dist[2] or 'NA'
            # Try to handle the exceptions now ...
            for (path, name) in Facts.OSDIST_LIST:
                if os.path.exists(path):
                    if os.path.getsize(path) > 0:
                        if self.facts['distribution'] in ('Fedora', ):
                            # Once we determine the value is one of these distros
                            # we trust the values are always correct
                            break
                        elif name == 'OracleLinux':
                            data = get_file_content(path)
                            if 'Oracle Linux' in data:
                                self.facts['distribution'] = name
                            else:
                                self.facts['distribution'] = data.split()[0]
                            break
                        elif name == 'RedHat':
                            data = get_file_content(path)
                            if 'Red Hat' in data:
                                self.facts['distribution'] = name
                            else:
                                self.facts['distribution'] = data.split()[0]
                            break
                        elif name == 'OtherLinux':
                            data = get_file_content(path)
                            if 'Amazon' in data:
                                self.facts['distribution'] = 'Amazon'
                                self.facts['distribution_version'] = data.split()[-1]
                                break
                        elif name == 'OpenWrt':
                            data = get_file_content(path)
                            if 'OpenWrt' in data:
                                self.facts['distribution'] = name
                                version = re.search('DISTRIB_RELEASE="(.*)"', data)
                                if version:
                                    self.facts['distribution_version'] = version.groups()[0]
                                release = re.search('DISTRIB_CODENAME="(.*)"', data)
                                if release:
                                    self.facts['distribution_release'] = release.groups()[0]
                                break
                        elif name == 'Alpine':
                            data = get_file_content(path)
                            self.facts['distribution'] = name
                            self.facts['distribution_version'] = data
                            break
                        elif name == 'Solaris':
                            data = get_file_content(path).split('\n')[0]
                            if 'Solaris' in data:
                                ora_prefix = ''
                                if 'Oracle Solaris' in data:
                                    data = data.replace('Oracle ','')
                                    ora_prefix = 'Oracle '
                                self.facts['distribution'] = data.split()[0]
                                self.facts['distribution_version'] = data.split()[1]
                                self.facts['distribution_release'] = ora_prefix + data
                                break

                            uname_rc, uname_out, uname_err = module.run_command(['uname', '-v'])
                            distribution_version = None
                            if 'SmartOS' in data:
                                self.facts['distribution'] = 'SmartOS'
                                if os.path.exists('/etc/product'):
                                    product_data = dict([l.split(': ', 1) for l in get_file_content('/etc/product').split('\n') if ': ' in l])
                                    if 'Image' in product_data:
                                        distribution_version = product_data.get('Image').split()[-1]
                            elif 'OpenIndiana' in data:
                                self.facts['distribution'] = 'OpenIndiana'
                            elif 'OmniOS' in data:
                                self.facts['distribution'] = 'OmniOS'
                                distribution_version = data.split()[-1]
                            elif uname_rc == 0 and 'NexentaOS_' in uname_out:
                                self.facts['distribution'] = 'Nexenta'
                                distribution_version = data.split()[-1].lstrip('v')

                            if self.facts['distribution'] in ('SmartOS', 'OpenIndiana', 'OmniOS', 'Nexenta'):
                                self.facts['distribution_release'] = data.strip()
                                if distribution_version is not None:
                                    self.facts['distribution_version'] = distribution_version
                                elif uname_rc == 0:
                                    self.facts['distribution_version'] = uname_out.split('\n')[0].strip()
                                break

                        elif name == 'SuSE':
                            data = get_file_content(path)
                            if 'suse' in data.lower():
                                if path == '/etc/os-release':
                                    for line in data.splitlines():
                                        distribution = re.search("^NAME=(.*)", line)
                                        if distribution:
                                            self.facts['distribution'] = distribution.group(1).strip('"')
                                        distribution_version = re.search('^VERSION_ID="?([0-9]+\.?[0-9]*)"?', line) # example pattern are 13.04 13.0 13
                                        if distribution_version:
                                             self.facts['distribution_version'] = distribution_version.group(1)
                                        if 'open' in data.lower():
                                            release = re.search("^PRETTY_NAME=[^(]+ \(?([^)]+?)\)", line)
                                            if release:
                                                self.facts['distribution_release'] = release.groups()[0]
                                        elif 'enterprise' in data.lower():
                                             release = re.search('^VERSION_ID="?[0-9]+\.?([0-9]*)"?', line) # SLES doesn't got funny release names
                                             if release:
                                                 release = release.group(1)
                                             else:
                                                 release = "0" # no minor number, so it is the first release
                                             self.facts['distribution_release'] = release
                                    break
                                elif path == '/etc/SuSE-release':
                                    if 'open' in data.lower():
                                        data = data.splitlines()
                                        distdata = get_file_content(path).split('\n')[0]
                                        self.facts['distribution'] = distdata.split()[0]
                                        for line in data:
                                            release = re.search('CODENAME *= *([^\n]+)', line)
                                            if release:
                                                self.facts['distribution_release'] = release.groups()[0].strip()
                                    elif 'enterprise' in data.lower():
                                        lines = data.splitlines()
                                        distribution = lines[0].split()[0]
                                        if "Server" in data:
                                            self.facts['distribution'] = "SLES"
                                        elif "Desktop" in data:
                                            self.facts['distribution'] = "SLED"
                                        for line in lines:
                                            release = re.search('PATCHLEVEL = ([0-9]+)', line) # SLES doesn't got funny release names
                                            if release:
                                                self.facts['distribution_release'] = release.group(1)
                                                self.facts['distribution_version'] = self.facts['distribution_version'] + '.' + release.group(1)
                        elif name == 'Debian':
                            data = get_file_content(path)
                            if 'Debian' in data or 'Raspbian' in data:
                                release = re.search("PRETTY_NAME=[^(]+ \(?([^)]+?)\)", data)
                                if release:
                                    self.facts['distribution_release'] = release.groups()[0]
                                    break
                            elif 'Ubuntu' in data:
                                break # Ubuntu gets correct info from python functions
                        elif name == 'Mandriva':
                            data = get_file_content(path)
                            if 'Mandriva' in data:
                                version = re.search('DISTRIB_RELEASE="(.*)"', data)
                                if version:
                                    self.facts['distribution_version'] = version.groups()[0]
                                release = re.search('DISTRIB_CODENAME="(.*)"', data)
                                if release:
                                    self.facts['distribution_release'] = release.groups()[0]
                                self.facts['distribution'] = name
                                break
                        elif name == 'NA':
                            data = get_file_content(path)
                            for line in data.splitlines():
                                if self.facts['distribution'] == 'NA':
                                    distribution = re.search("^NAME=(.*)", line)
                                    if distribution:
                                        self.facts['distribution'] = distribution.group(1).strip('"')
                                if self.facts['distribution_version'] == 'NA':
                                    version = re.search("^VERSION=(.*)", line)
                                    if version:
                                        self.facts['distribution_version'] = version.group(1).strip('"')

                            if self.facts['distribution'].lower() == 'coreos':
                                data = get_file_content('/etc/coreos/update.conf')
                                release = re.search("^GROUP=(.*)", data)
                                if release:
                                    self.facts['distribution_release'] = release.group(1).strip('"')
                    else:
                        self.facts['distribution'] = name
        machine_id = get_file_content("/var/lib/dbus/machine-id") or get_file_content("/etc/machine-id")
        if machine_id:
            machine_id = machine_id.split('\n')[0]
            self.facts["machine_id"] = machine_id
        self.facts['os_family'] = self.facts['distribution']
        if self.facts['distribution'] in OS_FAMILY:
            self.facts['os_family'] = OS_FAMILY[self.facts['distribution']]

    def get_cmdline(self):
        data = get_file_content('/proc/cmdline')
        if data:
            self.facts['cmdline'] = {}
            try:
                for piece in shlex.split(data):
                    item = piece.split('=', 1)
                    if len(item) == 1:
                        self.facts['cmdline'][item[0]] = True
                    else:
                        self.facts['cmdline'][item[0]] = item[1]
            except ValueError, e:
                pass

    def get_public_ssh_host_keys(self):
        keytypes = ('dsa', 'rsa', 'ecdsa', 'ed25519')

        if self.facts['system'] == 'Darwin':
            keydir = '/etc'
        else:
            keydir = '/etc/ssh'

        for type_ in keytypes:
            key_filename = '%s/ssh_host_%s_key.pub' % (keydir, type_)
            keydata = get_file_content(key_filename)
            if keydata is not None:
                factname = 'ssh_host_key_%s_public' % type_
                self.facts[factname] = keydata.split()[1]

    def get_pkg_mgr_facts(self):
        self.facts['pkg_mgr'] = 'unknown'
        for pkg in Facts.PKG_MGRS:
            if os.path.exists(pkg['path']):
                self.facts['pkg_mgr'] = pkg['name']
        if self.facts['system'] == 'OpenBSD':
                self.facts['pkg_mgr'] = 'openbsd_pkg'

    def get_lsb_facts(self):
        lsb_path = module.get_bin_path('lsb_release')
        if lsb_path:
            rc, out, err = module.run_command([lsb_path, "-a"])
            if rc == 0:
                self.facts['lsb'] = {}
            for line in out.split('\n'):
                if len(line) < 1 or ':' not in line:
                    continue
                value = line.split(':', 1)[1].strip()
                if 'LSB Version:' in line:
                    self.facts['lsb']['release'] = value
                elif 'Distributor ID:' in line:
                    self.facts['lsb']['id'] = value
                elif 'Description:' in line:
                    self.facts['lsb']['description'] = value
                elif 'Release:' in line:
                    self.facts['lsb']['release'] = value
                elif 'Codename:' in line:
                    self.facts['lsb']['codename'] = value
            if 'lsb' in self.facts and 'release' in self.facts['lsb']:
                self.facts['lsb']['major_release'] = self.facts['lsb']['release'].split('.')[0]
        elif lsb_path is None and os.path.exists('/etc/lsb-release'):
            self.facts['lsb'] = {}
            for line in get_file_lines('/etc/lsb-release'):
                value = line.split('=',1)[1].strip()
                if 'DISTRIB_ID' in line:
                    self.facts['lsb']['id'] = value
                elif 'DISTRIB_RELEASE' in line:
                    self.facts['lsb']['release'] = value
                elif 'DISTRIB_DESCRIPTION' in line:
                    self.facts['lsb']['description'] = value
                elif 'DISTRIB_CODENAME' in line:
                    self.facts['lsb']['codename'] = value
        else:
            return self.facts

        if 'lsb' in self.facts and 'release' in self.facts['lsb']:
            self.facts['lsb']['major_release'] = self.facts['lsb']['release'].split('.')[0]


    def get_selinux_facts(self):
        if not HAVE_SELINUX:
            self.facts['selinux'] = False
            return
        self.facts['selinux'] = {}
        if not selinux.is_selinux_enabled():
            self.facts['selinux']['status'] = 'disabled'
        else:
            self.facts['selinux']['status'] = 'enabled'
            try:
                self.facts['selinux']['policyvers'] = selinux.security_policyvers()
            except OSError, e:
                self.facts['selinux']['policyvers'] = 'unknown'
            try:
                (rc, configmode) = selinux.selinux_getenforcemode()
                if rc == 0:
                    self.facts['selinux']['config_mode'] = Facts.SELINUX_MODE_DICT.get(configmode, 'unknown')
                else:
                    self.facts['selinux']['config_mode'] = 'unknown'
            except OSError, e:
                self.facts['selinux']['config_mode'] = 'unknown'
            try:
                mode = selinux.security_getenforce()
                self.facts['selinux']['mode'] = Facts.SELINUX_MODE_DICT.get(mode, 'unknown')
            except OSError, e:
                self.facts['selinux']['mode'] = 'unknown'
            try:
                (rc, policytype) = selinux.selinux_getpolicytype()
                if rc == 0:
                    self.facts['selinux']['type'] = policytype
                else:
                    self.facts['selinux']['type'] = 'unknown'
            except OSError, e:
                self.facts['selinux']['type'] = 'unknown'


    def get_fips_facts(self):
        self.facts['fips'] = False
        data = get_file_content('/proc/sys/crypto/fips_enabled')
        if data and data == '1':
            self.facts['fips'] = True


    def get_date_time_facts(self):
        self.facts['date_time'] = {}

        now = datetime.datetime.now()
        self.facts['date_time']['year'] = now.strftime('%Y')
        self.facts['date_time']['month'] = now.strftime('%m')
        self.facts['date_time']['weekday'] = now.strftime('%A')
        self.facts['date_time']['day'] = now.strftime('%d')
        self.facts['date_time']['hour'] = now.strftime('%H')
        self.facts['date_time']['minute'] = now.strftime('%M')
        self.facts['date_time']['second'] = now.strftime('%S')
        self.facts['date_time']['epoch'] = now.strftime('%s')
        if self.facts['date_time']['epoch'] == '' or self.facts['date_time']['epoch'][0] == '%':
            self.facts['date_time']['epoch'] = str(int(time.time()))
        self.facts['date_time']['date'] = now.strftime('%Y-%m-%d')
        self.facts['date_time']['time'] = now.strftime('%H:%M:%S')
        self.facts['date_time']['iso8601_micro'] = now.utcnow().strftime("%Y-%m-%dT%H:%M:%S.%fZ")
        self.facts['date_time']['iso8601'] = now.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ")
        self.facts['date_time']['iso8601_basic'] = now.strftime("%Y%m%dT%H%M%S%f")
        self.facts['date_time']['iso8601_basic_short'] = now.strftime("%Y%m%dT%H%M%S")
        self.facts['date_time']['tz'] = time.strftime("%Z")
        self.facts['date_time']['tz_offset'] = time.strftime("%z")


    # User
    def get_user_facts(self):
        self.facts['user_id'] = getpass.getuser()
        pwent = pwd.getpwnam(getpass.getuser())
        self.facts['user_uid'] = pwent.pw_uid
        self.facts['user_gid'] = pwent.pw_gid
        self.facts['user_gecos'] = pwent.pw_gecos
        self.facts['user_dir'] = pwent.pw_dir
        self.facts['user_shell'] = pwent.pw_shell

    def get_env_facts(self):
        self.facts['env'] = {}
        for k,v in os.environ.iteritems():
            self.facts['env'][k] = v

    def get_dns_facts(self):
        self.facts['dns'] = {}
        for line in get_file_lines('/etc/resolv.conf'):
            if line.startswith('#') or line.startswith(';') or line.strip() == '':
                continue
            tokens = line.split()
            if len(tokens) == 0:
                continue
            if tokens[0] == 'nameserver':
                self.facts['dns']['nameservers'] = []
                for nameserver in tokens[1:]:
                    self.facts['dns']['nameservers'].append(nameserver)
            elif tokens[0] == 'domain':
                self.facts['dns']['domain'] = tokens[1]
            elif tokens[0] == 'search':
                self.facts['dns']['search'] = []
                for suffix in tokens[1:]:
                    self.facts['dns']['search'].append(suffix)
            elif tokens[0] == 'sortlist':
                self.facts['dns']['sortlist'] = []
                for address in tokens[1:]:
                    self.facts['dns']['sortlist'].append(address)
            elif tokens[0] == 'options':
                self.facts['dns']['options'] = {}
                for option in tokens[1:]:
                    option_tokens = option.split(':', 1)
                    if len(option_tokens) == 0:
                        continue
                    val = len(option_tokens) == 2 and option_tokens[1] or True
                    self.facts['dns']['options'][option_tokens[0]] = val

class Hardware(Facts):
    """
    This is a generic Hardware subclass of Facts.  This should be further
    subclassed to implement per platform.  If you subclass this, it
    should define:
    - memfree_mb
    - memtotal_mb
    - swapfree_mb
    - swaptotal_mb
    - processor (a list)
    - processor_cores
    - processor_count

    All subclasses MUST define platform.
    """
    platform = 'Generic'

    def __new__(cls, *arguments, **keyword):
        subclass = cls
        for sc in Hardware.__subclasses__():
            if sc.platform == platform.system():
                subclass = sc
        return super(cls, subclass).__new__(subclass, *arguments, **keyword)

    def __init__(self):
        Facts.__init__(self)

    def populate(self):
        return self.facts

class LinuxHardware(Hardware):
    """
    Linux-specific subclass of Hardware.  Defines memory and CPU facts:
    - memfree_mb
    - memtotal_mb
    - swapfree_mb
    - swaptotal_mb
    - processor (a list)
    - processor_cores
    - processor_count

    In addition, it also defines number of DMI facts and device facts.
    """

    platform = 'Linux'

    # Originally only had these four as toplevelfacts
    ORIGINAL_MEMORY_FACTS = frozenset(('MemTotal', 'SwapTotal', 'MemFree', 'SwapFree'))
    # Now we have all of these in a dict structure
    MEMORY_FACTS = ORIGINAL_MEMORY_FACTS.union(('Buffers', 'Cached', 'SwapCached'))

    def __init__(self):
        Hardware.__init__(self)

    def populate(self):
        self.get_cpu_facts()
        self.get_memory_facts()
        self.get_dmi_facts()
        self.get_device_facts()
        self.get_uptime_facts()
        self.get_lvm_facts()
        try:
            self.get_mount_facts()
        except TimeoutError:
            pass
        return self.facts

    def get_memory_facts(self):
        if not os.access("/proc/meminfo", os.R_OK):
            return

        memstats = {}
        for line in get_file_lines("/proc/meminfo"):
            data = line.split(":", 1)
            key = data[0]
            if key in self.ORIGINAL_MEMORY_FACTS:
                val = data[1].strip().split(' ')[0]
                self.facts["%s_mb" % key.lower()] = long(val) / 1024

            if key in self.MEMORY_FACTS:
                 val = data[1].strip().split(' ')[0]
                 memstats[key.lower()] = long(val) / 1024

        if None not in (memstats.get('memtotal'), memstats.get('memfree')):
            memstats['real:used'] = memstats['memtotal'] - memstats['memfree']
        if None not in (memstats.get('cached'), memstats.get('memfree'), memstats.get('buffers')):
            memstats['nocache:free'] = memstats['cached'] + memstats['memfree'] + memstats['buffers']
        if None not in (memstats.get('memtotal'), memstats.get('nocache:free')):
            memstats['nocache:used'] = memstats['memtotal'] - memstats['nocache:free']
        if None not in (memstats.get('swaptotal'), memstats.get('swapfree')):
            memstats['swap:used'] = memstats['swaptotal'] - memstats['swapfree']

        self.facts['memory_mb'] = {
                     'real' : {
                         'total': memstats.get('memtotal'),
                         'used': memstats.get('real:used'),
                         'free': memstats.get('memfree'),
                     },
                     'nocache' : {
                         'free': memstats.get('nocache:free'),
                         'used': memstats.get('nocache:used'),
                     },
                     'swap' : {
                         'total': memstats.get('swaptotal'),
                         'free': memstats.get('swapfree'),
                         'used': memstats.get('swap:used'),
                         'cached': memstats.get('swapcached'),
                     },
                 }

    def get_cpu_facts(self):
        i = 0
        vendor_id_occurrence = 0
        model_name_occurrence = 0
        physid = 0
        coreid = 0
        sockets = {}
        cores = {}

        xen = False
        xen_paravirt = False
        try:
            if os.path.exists('/proc/xen'):
                xen = True
            else:
                for line in get_file_lines('/sys/hypervisor/type'):
                    if line.strip() == 'xen':
                        xen = True
                    # Only interested in the first line
                    break
        except IOError:
            pass

        if not os.access("/proc/cpuinfo", os.R_OK):
            return
        self.facts['processor'] = []
        for line in get_file_lines('/proc/cpuinfo'):
            data = line.split(":", 1)
            key = data[0].strip()

            if xen:
                if key == 'flags':
                    # Check for vme cpu flag, Xen paravirt does not expose this.
                    #   Need to detect Xen paravirt because it exposes cpuinfo
                    #   differently than Xen HVM or KVM and causes reporting of
                    #   only a single cpu core.
                    if 'vme' not in data:
                        xen_paravirt = True

            # model name is for Intel arch, Processor (mind the uppercase P)
            # works for some ARM devices, like the Sheevaplug.
            if key in ['model name', 'Processor', 'vendor_id', 'cpu', 'Vendor']:
                if 'processor' not in self.facts:
                    self.facts['processor'] = []
                self.facts['processor'].append(data[1].strip())
                if key == 'vendor_id':
                    vendor_id_occurrence += 1
                if key == 'model name':
                    model_name_occurrence += 1
                i += 1
            elif key == 'physical id':
                physid = data[1].strip()
                if physid not in sockets:
                    sockets[physid] = 1
            elif key == 'core id':
                coreid = data[1].strip()
                if coreid not in sockets:
                    cores[coreid] = 1
            elif key == 'cpu cores':
                sockets[physid] = int(data[1].strip())
            elif key == 'siblings':
                cores[coreid] = int(data[1].strip())
            elif key == '# processors':
                self.facts['processor_cores'] = int(data[1].strip())

        if vendor_id_occurrence == model_name_occurrence:
            i = vendor_id_occurrence

        if self.facts['architecture'] != 's390x':
            if xen_paravirt:
                self.facts['processor_count'] = i
                self.facts['processor_cores'] = i
                self.facts['processor_threads_per_core'] = 1
                self.facts['processor_vcpus'] = i
            else:
                self.facts['processor_count'] = sockets and len(sockets) or i
                self.facts['processor_cores'] = sockets.values() and sockets.values()[0] or 1
                self.facts['processor_threads_per_core'] = ((cores.values() and
                    cores.values()[0] or 1) / self.facts['processor_cores'])
                self.facts['processor_vcpus'] = (self.facts['processor_threads_per_core'] *
                    self.facts['processor_count'] * self.facts['processor_cores'])

    def get_dmi_facts(self):
        ''' learn dmi facts from system

        Try /sys first for dmi related facts.
        If that is not available, fall back to dmidecode executable '''

        if os.path.exists('/sys/devices/virtual/dmi/id/product_name'):
            # Use kernel DMI info, if available

            # DMI SPEC -- http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.0.pdf
            FORM_FACTOR = [ "Unknown", "Other", "Unknown", "Desktop",
                            "Low Profile Desktop", "Pizza Box", "Mini Tower", "Tower",
                            "Portable", "Laptop", "Notebook", "Hand Held", "Docking Station",
                            "All In One", "Sub Notebook", "Space-saving", "Lunch Box",
                            "Main Server Chassis", "Expansion Chassis", "Sub Chassis",
                            "Bus Expansion Chassis", "Peripheral Chassis", "RAID Chassis",
                            "Rack Mount Chassis", "Sealed-case PC", "Multi-system",
                            "CompactPCI", "AdvancedTCA", "Blade" ]

            DMI_DICT = {
                    'bios_date': '/sys/devices/virtual/dmi/id/bios_date',
                    'bios_version': '/sys/devices/virtual/dmi/id/bios_version',
                    'form_factor': '/sys/devices/virtual/dmi/id/chassis_type',
                    'product_name': '/sys/devices/virtual/dmi/id/product_name',
                    'product_serial': '/sys/devices/virtual/dmi/id/product_serial',
                    'product_uuid': '/sys/devices/virtual/dmi/id/product_uuid',
                    'product_version': '/sys/devices/virtual/dmi/id/product_version',
                    'system_vendor': '/sys/devices/virtual/dmi/id/sys_vendor'
                    }

            for (key,path) in DMI_DICT.items():
                data = get_file_content(path)
                if data is not None:
                    if key == 'form_factor':
                        try:
                            self.facts['form_factor'] = FORM_FACTOR[int(data)]
                        except IndexError, e:
                            self.facts['form_factor'] = 'unknown (%s)' % data
                    else:
                        self.facts[key] = data
                else:
                    self.facts[key] = 'NA'

        else:
            # Fall back to using dmidecode, if available
            dmi_bin = module.get_bin_path('dmidecode')
            DMI_DICT = {
                    'bios_date': 'bios-release-date',
                    'bios_version': 'bios-version',
                    'form_factor': 'chassis-type',
                    'product_name': 'system-product-name',
                    'product_serial': 'system-serial-number',
                    'product_uuid': 'system-uuid',
                    'product_version': 'system-version',
                    'system_vendor': 'system-manufacturer'
                    }
            for (k, v) in DMI_DICT.items():
                if dmi_bin is not None:
                    (rc, out, err) = module.run_command('%s -s %s' % (dmi_bin, v))
                    if rc == 0:
                        # Strip out commented lines (specific dmidecode output)
                        thisvalue = ''.join([ line for line in out.split('\n') if not line.startswith('#') ])
                        try:
                            json.dumps(thisvalue)
                        except UnicodeDecodeError:
                            thisvalue = "NA"

                        self.facts[k] = thisvalue
                    else:
                        self.facts[k] = 'NA'
                else:
                    self.facts[k] = 'NA'

    @timeout(10)
    def get_mount_facts(self):
        self.facts['mounts'] = []
        mtab = get_file_content('/etc/mtab', '')
        for line in mtab.split('\n'):
            if line.startswith('/'):
                fields = line.rstrip('\n').split()
                if(fields[2] != 'none'):
                    size_total = None
                    size_available = None
                    try:
                        statvfs_result = os.statvfs(fields[1])
                        size_total = statvfs_result.f_bsize * statvfs_result.f_blocks
                        size_available = statvfs_result.f_bsize * (statvfs_result.f_bavail)
                    except OSError, e:
                        continue

                    uuid = 'NA'
                    lsblkPath = module.get_bin_path("lsblk")
                    if lsblkPath:
                        rc, out, err = module.run_command("%s -ln --output UUID %s" % (lsblkPath, fields[0]), use_unsafe_shell=True)

                        if rc == 0:
                            uuid = out.strip()

                    self.facts['mounts'].append(
                        {'mount': fields[1],
                         'device':fields[0],
                         'fstype': fields[2],
                         'options': fields[3],
                         # statvfs data
                         'size_total': size_total,
                         'size_available': size_available,
                         'uuid': uuid,
                         })

    def get_device_facts(self):
        self.facts['devices'] = {}
        lspci = module.get_bin_path('lspci')
        if lspci:
            rc, pcidata, err = module.run_command([lspci, '-D'])
        else:
            pcidata = None

        try:
            block_devs = os.listdir("/sys/block")
        except OSError:
            return

        for block in block_devs:
            virtual = 1
            sysfs_no_links = 0
            try:
                path = os.readlink(os.path.join("/sys/block/", block))
            except OSError, e:
                if e.errno == errno.EINVAL:
                    path = block
                    sysfs_no_links = 1
                else:
                    continue
            if "virtual" in path:
                continue
            sysdir = os.path.join("/sys/block", path)
            if sysfs_no_links == 1:
                for folder in os.listdir(sysdir):
                    if "device" in folder:
                        virtual = 0
                        break
                if virtual:
                    continue
            d = {}
            diskname = os.path.basename(sysdir)
            for key in ['vendor', 'model']:
                d[key] = get_file_content(sysdir + "/device/" + key)

            for key,test in [ ('removable','/removable'), \
                              ('support_discard','/queue/discard_granularity'),
                              ]:
                d[key] = get_file_content(sysdir + test)

            d['partitions'] = {}
            for folder in os.listdir(sysdir):
                m = re.search("(" + diskname + "\d+)", folder)
                if m:
                    part = {}
                    partname = m.group(1)
                    part_sysdir = sysdir + "/" + partname

                    part['start'] = get_file_content(part_sysdir + "/start",0)
                    part['sectors'] = get_file_content(part_sysdir + "/size",0)
                    part['sectorsize'] = get_file_content(part_sysdir + "/queue/logical_block_size")
                    if not part['sectorsize']:
                        part['sectorsize'] = get_file_content(part_sysdir + "/queue/hw_sector_size",512)
                    part['size'] = module.pretty_bytes((float(part['sectors']) * float(part['sectorsize'])))
                    d['partitions'][partname] = part

            d['rotational'] = get_file_content(sysdir + "/queue/rotational")
            d['scheduler_mode'] = ""
            scheduler = get_file_content(sysdir + "/queue/scheduler")
            if scheduler is not None:
                m = re.match(".*?(\[(.*)\])", scheduler)
                if m:
                    d['scheduler_mode'] = m.group(2)

            d['sectors'] = get_file_content(sysdir + "/size")
            if not d['sectors']:
                d['sectors'] = 0
            d['sectorsize'] = get_file_content(sysdir + "/queue/logical_block_size")
            if not d['sectorsize']:
                d['sectorsize'] = get_file_content(sysdir + "/queue/hw_sector_size",512)
            d['size'] = module.pretty_bytes(float(d['sectors']) * float(d['sectorsize']))

            d['host'] = ""

            # domains are numbered (0 to ffff), bus (0 to ff), slot (0 to 1f), and function (0 to 7).
            m = re.match(".+/([a-f0-9]{4}:[a-f0-9]{2}:[0|1][a-f0-9]\.[0-7])/", sysdir)
            if m and pcidata:
                pciid = m.group(1)
                did = re.escape(pciid)
                m = re.search("^" + did + "\s(.*)$", pcidata, re.MULTILINE)
                if m:
                    d['host'] = m.group(1)

            d['holders'] = []
            if os.path.isdir(sysdir + "/holders"):
                for folder in os.listdir(sysdir + "/holders"):
                    if not folder.startswith("dm-"):
                        continue
                    name = get_file_content(sysdir + "/holders/" + folder + "/dm/name")
                    if name:
                        d['holders'].append(name)
                    else:
                        d['holders'].append(folder)

            self.facts['devices'][diskname] = d

    def get_uptime_facts(self):
        uptime_seconds_string = get_file_content('/proc/uptime').split(' ')[0]
        self.facts['uptime_seconds'] = int(float(uptime_seconds_string))

    def get_lvm_facts(self):
        """ Get LVM Facts if running as root and lvm utils are available """

        if os.getuid() == 0 and module.get_bin_path('vgs'):
            lvm_util_options = '--noheadings --nosuffix --units g'

            vgs_path = module.get_bin_path('vgs')
            #vgs fields: VG #PV #LV #SN Attr VSize VFree
            vgs={}
            if vgs_path:
                rc, vg_lines, err = module.run_command( '%s %s' % (vgs_path, lvm_util_options))
                for vg_line in vg_lines.splitlines():
                    items = vg_line.split()
                    vgs[items[0]] = {'size_g':items[-2],
                                     'free_g':items[-1],
                                     'num_lvs': items[2],
                                     'num_pvs': items[1]}

            lvs_path = module.get_bin_path('lvs')
            #lvs fields:
            #LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
            lvs = {}
            if lvs_path:
                rc, lv_lines, err = module.run_command( '%s %s' % (lvs_path, lvm_util_options))
                for lv_line in lv_lines.splitlines():
                    items = lv_line.split()
                    lvs[items[0]] = {'size_g': items[3], 'vg': items[1]}

            self.facts['lvm'] = {'lvs': lvs, 'vgs': vgs}


class SunOSHardware(Hardware):
    """
    In addition to the generic memory and cpu facts, this also sets
    swap_reserved_mb and swap_allocated_mb that is available from *swap -s*.
    """
    platform = 'SunOS'

    def __init__(self):
        Hardware.__init__(self)

    def populate(self):
        self.get_cpu_facts()
        self.get_memory_facts()
        try:
            self.get_mount_facts()
        except TimeoutError:
            pass
        return self.facts

    def get_cpu_facts(self):
        physid = 0
        sockets = {}
        rc, out, err = module.run_command("/usr/bin/kstat cpu_info")
        self.facts['processor'] = []
        for line in out.split('\n'):
            if len(line) < 1:
                continue
            data = line.split(None, 1)
            key = data[0].strip()
            # "brand" works on Solaris 10 & 11. "implementation" for Solaris 9.
            if key == 'module:':
                brand = ''
            elif key == 'brand':
                brand = data[1].strip()
            elif key == 'clock_MHz':
                clock_mhz = data[1].strip()
            elif key == 'implementation':
                processor = brand or data[1].strip()
                # Add clock speed to description for SPARC CPU
                if self.facts['machine'] != 'i86pc':
                    processor += " @ " + clock_mhz + "MHz"
                if 'processor' not in self.facts:
                    self.facts['processor'] = []
                self.facts['processor'].append(processor)
            elif key == 'chip_id':
                physid = data[1].strip()
                if physid not in sockets:
                    sockets[physid] = 1
                else:
                    sockets[physid] += 1
        # Counting cores on Solaris can be complicated.
        # https://blogs.oracle.com/mandalika/entry/solaris_show_me_the_cpu
        # Treat 'processor_count' as physical sockets and 'processor_cores' as
        # virtual CPUs visisble to Solaris. Not a true count of cores for modern SPARC as
        # these processors have: sockets -> cores -> threads/virtual CPU.
        if len(sockets) > 0:
            self.facts['processor_count'] = len(sockets)
            self.facts['processor_cores'] = reduce(lambda x, y: x + y, sockets.values())
        else:
            self.facts['processor_cores'] = 'NA'
            self.facts['processor_count'] = len(self.facts['processor'])

    def get_memory_facts(self):
        rc, out, err = module.run_command(["/usr/sbin/prtconf"])
        for line in out.split('\n'):
            if 'Memory size' in line:
                self.facts['memtotal_mb'] = line.split()[2]
        rc, out, err = module.run_command("/usr/sbin/swap -s")
        allocated = long(out.split()[1][:-1])
        reserved = long(out.split()[5][:-1])
        used = long(out.split()[8][:-1])
        free = long(out.split()[10][:-1])
        self.facts['swapfree_mb'] = free / 1024
        self.facts['swaptotal_mb'] = (free + used) / 1024
        self.facts['swap_allocated_mb'] = allocated / 1024
        self.facts['swap_reserved_mb'] = reserved / 1024

    @timeout(10)
    def get_mount_facts(self):
        self.facts['mounts'] = []
        # For a detailed format description see mnttab(4)
        #   special mount_point fstype options time
        fstab = get_file_content('/etc/mnttab')
        if fstab:
            for line in fstab.split('\n'):
                fields = line.rstrip('\n').split('\t')
                self.facts['mounts'].append({'mount': fields[1], 'device': fields[0], 'fstype' : fields[2], 'options': fields[3], 'time': fields[4]})

class OpenBSDHardware(Hardware):
    """
    OpenBSD-specific subclass of Hardware. Defines memory, CPU and device facts:
    - memfree_mb
    - memtotal_mb
    - swapfree_mb
    - swaptotal_mb
    - processor (a list)
    - processor_cores
    - processor_count
    - processor_speed
    - devices
    """
    platform = 'OpenBSD'
    DMESG_BOOT = '/var/run/dmesg.boot'

    def __init__(self):
        Hardware.__init__(self)

    def populate(self):
        self.sysctl = self.get_sysctl()
        self.get_memory_facts()
        self.get_processor_facts()
        self.get_device_facts()
        self.get_mount_facts()
        return self.facts

    def get_sysctl(self):
        rc, out, err = module.run_command(["/sbin/sysctl", "hw"])
        if rc != 0:
            return dict()
        sysctl = dict()
        for line in out.splitlines():
            (key, value) = line.split('=')
            sysctl[key] = value.strip()
        return sysctl

    @timeout(10)
    def get_mount_facts(self):
        self.facts['mounts'] = []
        fstab = get_file_content('/etc/fstab')
        if fstab:
            for line in fstab.split('\n'):
                if line.startswith('#') or line.strip() == '':
                    continue
                fields = re.sub(r'\s+',' ',line.rstrip('\n')).split()
                if fields[1] == 'none' or fields[3] == 'xx':
                    continue
                self.facts['mounts'].append({'mount': fields[1], 'device': fields[0], 'fstype' : fields[2], 'options': fields[3]})

    def get_memory_facts(self):
        # Get free memory. vmstat output looks like:
        #  procs    memory       page                    disks    traps          cpu
        #  r b w    avm     fre  flt  re  pi  po  fr  sr wd0 fd0  int   sys   cs us sy id
        #  0 0 0  47512   28160   51   0   0   0   0   0   1   0  116    89   17  0  1 99
        rc, out, err = module.run_command("/usr/bin/vmstat")
        if rc == 0:
            self.facts['memfree_mb'] = long(out.splitlines()[-1].split()[4]) / 1024
            self.facts['memtotal_mb'] = long(self.sysctl['hw.usermem']) / 1024 / 1024

        # Get swapctl info. swapctl output looks like:
        # total: 69268 1K-blocks allocated, 0 used, 69268 available
        # And for older OpenBSD:
        # total: 69268k bytes allocated = 0k used, 69268k available
        rc, out, err = module.run_command("/sbin/swapctl -sk")
        if rc == 0:
            swaptrans = maketrans(' ', ' ')
            data = out.split()
            self.facts['swapfree_mb'] = long(data[-2].translate(swaptrans, "kmg")) / 1024
            self.facts['swaptotal_mb'] = long(data[1].translate(swaptrans, "kmg")) / 1024

    def get_processor_facts(self):
        processor = []
        dmesg_boot = get_file_content(OpenBSDHardware.DMESG_BOOT)
        if not dmesg_boot:
            rc, dmesg_boot, err = module.run_command("/sbin/dmesg")
        i = 0
        for line in dmesg_boot.splitlines():
            if line.split(' ', 1)[0] == 'cpu%i:' % i:
                processor.append(line.split(' ', 1)[1])
                i = i + 1
        processor_count = i
        self.facts['processor'] = processor
        self.facts['processor_count'] = processor_count
        # I found no way to figure out the number of Cores per CPU in OpenBSD
        self.facts['processor_cores'] = 'NA'

    def get_device_facts(self):
        devices = []
        devices.extend(self.sysctl['hw.disknames'].split(','))
        self.facts['devices'] = devices

class FreeBSDHardware(Hardware):
    """
    FreeBSD-specific subclass of Hardware.  Defines memory and CPU facts:
    - memfree_mb
    - memtotal_mb
    - swapfree_mb
    - swaptotal_mb
    - processor (a list)
    - processor_cores
    - processor_count
    - devices
    """
    platform = 'FreeBSD'
    DMESG_BOOT = '/var/run/dmesg.boot'

    def __init__(self):
        Hardware.__init__(self)

    def populate(self):
        self.get_cpu_facts()
        self.get_memory_facts()
        self.get_dmi_facts()
        self.get_device_facts()
        try:
            self.get_mount_facts()
        except TimeoutError:
            pass
        return self.facts

    def get_cpu_facts(self):
        self.facts['processor'] = []
        rc, out, err = module.run_command("/sbin/sysctl -n hw.ncpu")
        self.facts['processor_count'] = out.strip()

        dmesg_boot = get_file_content(FreeBSDHardware.DMESG_BOOT)
        if not dmesg_boot:
            rc, dmesg_boot, err = module.run_command("/sbin/dmesg")
        for line in dmesg_boot.split('\n'):
            if 'CPU:' in line:
                cpu = re.sub(r'CPU:\s+', r"", line)
                self.facts['processor'].append(cpu.strip())
            if 'Logical CPUs per core' in line:
                self.facts['processor_cores'] = line.split()[4]


    def get_memory_facts(self):
        rc, out, err = module.run_command("/sbin/sysctl vm.stats")
        for line in out.split('\n'):
            data = line.split()
            if 'vm.stats.vm.v_page_size' in line:
                pagesize = long(data[1])
            if 'vm.stats.vm.v_page_count' in line:
                pagecount = long(data[1])
            if 'vm.stats.vm.v_free_count' in line:
                freecount = long(data[1])
        self.facts['memtotal_mb'] = pagesize * pagecount / 1024 / 1024
        self.facts['memfree_mb'] = pagesize * freecount / 1024 / 1024
        # Get swapinfo.  swapinfo output looks like:
        # Device          1M-blocks     Used    Avail Capacity
        # /dev/ada0p3        314368        0   314368     0%
        #
        rc, out, err = module.run_command("/usr/sbin/swapinfo -k")
        lines = out.split('\n')
        if len(lines[-1]) == 0:
            lines.pop()
        data = lines[-1].split()
        if data[0] != 'Device':
            self.facts['swaptotal_mb'] = int(data[1]) / 1024
            self.facts['swapfree_mb'] = int(data[3]) / 1024

    @timeout(10)
    def get_mount_facts(self):
        self.facts['mounts'] = []
        fstab = get_file_content('/etc/fstab')
        if fstab:
            for line in fstab.split('\n'):
                if line.startswith('#') or line.strip() == '':
                    continue
                fields = re.sub(r'\s+',' ',line.rstrip('\n')).split()
                self.facts['mounts'].append({'mount': fields[1], 'device': fields[0], 'fstype' : fields[2], 'options': fields[3]})

    def get_device_facts(self):
        sysdir = '/dev'
        self.facts['devices'] = {}
        drives = re.compile('(ada?\d+|da\d+|a?cd\d+)') #TODO: rc, disks, err = module.run_command("/sbin/sysctl kern.disks")
        slices = re.compile('(ada?\d+s\d+\w*|da\d+s\d+\w*)')
        if os.path.isdir(sysdir):
            dirlist = sorted(os.listdir(sysdir))
            for device in dirlist:
                d = drives.match(device)
                if d:
                    self.facts['devices'][d.group(1)] = []
                s = slices.match(device)
                if s:
                    self.facts['devices'][d.group(1)].append(s.group(1))

    def get_dmi_facts(self):
        ''' learn dmi facts from system

        Use dmidecode executable if available'''

        # Fall back to using dmidecode, if available
        dmi_bin = module.get_bin_path('dmidecode')
        DMI_DICT = dict(
            bios_date='bios-release-date',
            bios_version='bios-version',
            form_factor='chassis-type',
            product_name='system-product-name',
            product_serial='system-serial-number',
            product_uuid='system-uuid',
            product_version='system-version',
            system_vendor='system-manufacturer'
        )
        for (k, v) in DMI_DICT.items():
            if dmi_bin is not None:
                (rc, out, err) = module.run_command('%s -s %s' % (dmi_bin, v))
                if rc == 0:
                    # Strip out commented lines (specific dmidecode output)
                    self.facts[k] = ''.join([ line for line in out.split('\n') if not line.startswith('#') ])
                    try:
                        json.dumps(self.facts[k])
                    except UnicodeDecodeError:
                        self.facts[k] = 'NA'
                else:
                    self.facts[k] = 'NA'
            else:
                self.facts[k] = 'NA'


class NetBSDHardware(Hardware):
    """
    NetBSD-specific subclass of Hardware.  Defines memory and CPU facts:
    - memfree_mb
    - memtotal_mb
    - swapfree_mb
    - swaptotal_mb
    - processor (a list)
    - processor_cores
    - processor_count
    - devices
    """
    platform = 'NetBSD'
    MEMORY_FACTS = ['MemTotal', 'SwapTotal', 'MemFree', 'SwapFree']

    def __init__(self):
        Hardware.__init__(self)

    def populate(self):
        self.get_cpu_facts()
        self.get_memory_facts()
        try:
            self.get_mount_facts()
        except TimeoutError:
            pass
        return self.facts

    def get_cpu_facts(self):

        i = 0
        physid = 0
        sockets = {}
        if not os.access("/proc/cpuinfo", os.R_OK):
            return
        self.facts['processor'] = []
        for line in get_file_lines("/proc/cpuinfo"):
            data = line.split(":", 1)
            key = data[0].strip()
            # model name is for Intel arch, Processor (mind the uppercase P)
            # works for some ARM devices, like the Sheevaplug.
            if key == 'model name' or key == 'Processor':
                if 'processor' not in self.facts:
                    self.facts['processor'] = []
                self.facts['processor'].append(data[1].strip())
                i += 1
            elif key == 'physical id':
                physid = data[1].strip()
                if physid not in sockets:
                    sockets[physid] = 1
            elif key == 'cpu cores':
                sockets[physid] = int(data[1].strip())
        if len(sockets) > 0:
            self.facts['processor_count'] = len(sockets)
            self.facts['processor_cores'] = reduce(lambda x, y: x + y, sockets.values())
        else:
            self.facts['processor_count'] = i
            self.facts['processor_cores'] = 'NA'

    def get_memory_facts(self):
        if not os.access("/proc/meminfo", os.R_OK):
            return
        for line in get_file_lines("/proc/meminfo"):
            data = line.split(":", 1)
            key = data[0]
            if key in NetBSDHardware.MEMORY_FACTS:
                val = data[1].strip().split(' ')[0]
                self.facts["%s_mb" % key.lower()] = long(val) / 1024

    @timeout(10)
    def get_mount_facts(self):
        self.facts['mounts'] = []
        fstab = get_file_content('/etc/fstab')
        if fstab:
            for line in fstab.split('\n'):
                if line.startswith('#') or line.strip() == '':
                    continue
                fields = re.sub(r'\s+',' ',line.rstrip('\n')).split()
                self.facts['mounts'].append({'mount': fields[1], 'device': fields[0], 'fstype' : fields[2], 'options': fields[3]})

class AIX(Hardware):
    """
    AIX-specific subclass of Hardware.  Defines memory and CPU facts:
    - memfree_mb
    - memtotal_mb
    - swapfree_mb
    - swaptotal_mb
    - processor (a list)
    - processor_cores
    - processor_count
    """
    platform = 'AIX'

    def __init__(self):
        Hardware.__init__(self)

    def populate(self):
        self.get_cpu_facts()
        self.get_memory_facts()
        self.get_dmi_facts()
        return self.facts

    def get_cpu_facts(self):
        self.facts['processor'] = []


        rc, out, err = module.run_command("/usr/sbin/lsdev -Cc processor")
        if out:
            i = 0
            for line in out.split('\n'):

                if 'Available' in line:
                    if i == 0:
                        data = line.split(' ')
                        cpudev = data[0]

                    i += 1
            self.facts['processor_count'] = int(i)

            rc, out, err = module.run_command("/usr/sbin/lsattr -El " + cpudev + " -a type")

            data = out.split(' ')
            self.facts['processor'] = data[1]

            rc, out, err = module.run_command("/usr/sbin/lsattr -El " + cpudev + " -a smt_threads")

            data = out.split(' ')
            self.facts['processor_cores'] = int(data[1])

    def get_memory_facts(self):
        pagesize = 4096
        rc, out, err = module.run_command("/usr/bin/vmstat -v")
        for line in out.split('\n'):
            data = line.split()
            if 'memory pages' in line:
                pagecount = long(data[0])
            if 'free pages' in line:
                freecount = long(data[0])
        self.facts['memtotal_mb'] = pagesize * pagecount / 1024 / 1024
        self.facts['memfree_mb'] = pagesize * freecount / 1024 / 1024
        # Get swapinfo.  swapinfo output looks like:
        # Device          1M-blocks     Used    Avail Capacity
        # /dev/ada0p3        314368        0   314368     0%
        #
        rc, out, err = module.run_command("/usr/sbin/lsps -s")
        if out:
            lines = out.split('\n')
            data = lines[1].split()
            swaptotal_mb = long(data[0].rstrip('MB'))
            percused = int(data[1].rstrip('%'))
            self.facts['swaptotal_mb'] = swaptotal_mb
            self.facts['swapfree_mb'] = long(swaptotal_mb * ( 100 - percused ) / 100)

    def get_dmi_facts(self):
        rc, out, err = module.run_command("/usr/sbin/lsattr -El sys0 -a fwversion")
        data = out.split()
        self.facts['firmware_version'] = data[1].strip('IBM,')

class HPUX(Hardware):
    """
    HP-UX-specific subclass of Hardware. Defines memory and CPU facts:
    - memfree_mb
    - memtotal_mb
    - swapfree_mb
    - swaptotal_mb
    - processor
    - processor_cores
    - processor_count
    - model
    - firmware
    """

    platform = 'HP-UX'

    def __init__(self):
        Hardware.__init__(self)

    def populate(self):
        self.get_cpu_facts()
        self.get_memory_facts()
        self.get_hw_facts()
        return self.facts

    def get_cpu_facts(self):
        if self.facts['architecture'] == '9000/800':
            rc, out, err = module.run_command("ioscan -FkCprocessor | wc -l", use_unsafe_shell=True)
            self.facts['processor_count'] = int(out.strip())
        #Working with machinfo mess
        elif self.facts['architecture'] == 'ia64':
            if self.facts['distribution_version'] == "B.11.23":
                rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep 'Number of CPUs'", use_unsafe_shell=True)
                self.facts['processor_count'] = int(out.strip().split('=')[1])
                rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep 'processor family'", use_unsafe_shell=True)
                self.facts['processor'] = re.search('.*(Intel.*)', out).groups()[0].strip()
                rc, out, err = module.run_command("ioscan -FkCprocessor | wc -l", use_unsafe_shell=True)
                self.facts['processor_cores'] = int(out.strip())
            if self.facts['distribution_version'] == "B.11.31":
                #if machinfo return cores strings release B.11.31 > 1204
                rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep core | wc -l", use_unsafe_shell=True)
                if out.strip()== '0':
                    rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep Intel", use_unsafe_shell=True)
                    self.facts['processor_count'] = int(out.strip().split(" ")[0])
                    #If hyperthreading is active divide cores by 2
                    rc, out, err = module.run_command("/usr/sbin/psrset | grep LCPU", use_unsafe_shell=True)
                    data = re.sub(' +',' ',out).strip().split(' ')
                    if len(data) == 1:
                        hyperthreading = 'OFF'
                    else:
                        hyperthreading = data[1]
                    rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep logical", use_unsafe_shell=True)
                    data = out.strip().split(" ")
                    if hyperthreading == 'ON':
                        self.facts['processor_cores'] = int(data[0])/2
                    else:
                        if len(data) == 1:
                            self.facts['processor_cores'] = self.facts['processor_count']
                        else:
                            self.facts['processor_cores'] = int(data[0])
                    rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep Intel |cut -d' ' -f4-", use_unsafe_shell=True)
                    self.facts['processor'] = out.strip()
                else:
                    rc, out, err = module.run_command("/usr/contrib/bin/machinfo | egrep 'socket[s]?$' | tail -1", use_unsafe_shell=True)
                    self.facts['processor_count'] = int(out.strip().split(" ")[0])
                    rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep -e '[0-9] core' | tail -1", use_unsafe_shell=True)
                    self.facts['processor_cores'] = int(out.strip().split(" ")[0])
                    rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep Intel", use_unsafe_shell=True)
                    self.facts['processor'] = out.strip()

    def get_memory_facts(self):
        pagesize = 4096
        rc, out, err = module.run_command("/usr/bin/vmstat | tail -1", use_unsafe_shell=True)
        data = int(re.sub(' +',' ',out).split(' ')[5].strip())
        self.facts['memfree_mb'] = pagesize * data / 1024 / 1024
        if self.facts['architecture'] == '9000/800':
            try:
                rc, out, err = module.run_command("grep Physical /var/adm/syslog/syslog.log")
                data = re.search('.*Physical: ([0-9]*) Kbytes.*',out).groups()[0].strip()
                self.facts['memtotal_mb'] = int(data) / 1024
            except AttributeError:
                #For systems where memory details aren't sent to syslog or the log has rotated, use parsed
                #adb output. Unfortunately /dev/kmem doesn't have world-read, so this only works as root.
                if os.access("/dev/kmem", os.R_OK):
                    rc, out, err = module.run_command("echo 'phys_mem_pages/D' | adb -k /stand/vmunix /dev/kmem | tail -1 | awk '{print $2}'", use_unsafe_shell=True)
                    if not err:
                      data = out
                      self.facts['memtotal_mb'] = int(data) / 256
        else:
            rc, out, err = module.run_command("/usr/contrib/bin/machinfo | grep Memory", use_unsafe_shell=True)
            data = re.search('Memory[\ :=]*([0-9]*).*MB.*',out).groups()[0].strip()
            self.facts['memtotal_mb'] = int(data)
        rc, out, err = module.run_command("/usr/sbin/swapinfo -m -d -f -q")
        self.facts['swaptotal_mb'] = int(out.strip())
        rc, out, err = module.run_command("/usr/sbin/swapinfo -m -d -f | egrep '^dev|^fs'", use_unsafe_shell=True)
        swap = 0
        for line in out.strip().split('\n'):
            swap += int(re.sub(' +',' ',line).split(' ')[3].strip())
        self.facts['swapfree_mb'] = swap

    def get_hw_facts(self):
        rc, out, err = module.run_command("model")
        self.facts['model'] = out.strip()
        if self.facts['architecture'] == 'ia64':
            separator = ':'
            if self.facts['distribution_version'] == "B.11.23":
                separator = '='
            rc, out, err = module.run_command("/usr/contrib/bin/machinfo |grep -i 'Firmware revision' | grep -v BMC", use_unsafe_shell=True)
            self.facts['firmware_version'] = out.split(separator)[1].strip()


class Darwin(Hardware):
    """
    Darwin-specific subclass of Hardware.  Defines memory and CPU facts:
    - processor
    - processor_cores
    - memtotal_mb
    - memfree_mb
    - model
    - osversion
    - osrevision
    """
    platform = 'Darwin'

    def __init__(self):
        Hardware.__init__(self)

    def populate(self):
        self.sysctl = self.get_sysctl()
        self.get_mac_facts()
        self.get_cpu_facts()
        self.get_memory_facts()
        return self.facts

    def get_sysctl(self):
        rc, out, err = module.run_command(["/usr/sbin/sysctl", "hw", "machdep", "kern"])
        if rc != 0:
            return dict()
        sysctl = dict()
        for line in out.splitlines():
            if line.rstrip("\n"):
                (key, value) = re.split(' = |: ', line, maxsplit=1)
                sysctl[key] = value.strip()
        return sysctl

    def get_system_profile(self):
        rc, out, err = module.run_command(["/usr/sbin/system_profiler", "SPHardwareDataType"])
        if rc != 0:
            return dict()
        system_profile = dict()
        for line in out.splitlines():
            if ': ' in line:
                (key, value) = line.split(': ', 1)
                system_profile[key.strip()] = ' '.join(value.strip().split())
        return system_profile

    def get_mac_facts(self):
        rc, out, err = module.run_command("sysctl hw.model")
        if rc == 0:
            self.facts['model'] = out.splitlines()[-1].split()[1]
        self.facts['osversion'] = self.sysctl['kern.osversion']
        self.facts['osrevision'] = self.sysctl['kern.osrevision']

    def get_cpu_facts(self):
        if 'machdep.cpu.brand_string' in self.sysctl: # Intel
            self.facts['processor'] = self.sysctl['machdep.cpu.brand_string']
            self.facts['processor_cores'] = self.sysctl['machdep.cpu.core_count']
        else: # PowerPC
            system_profile = self.get_system_profile()
            self.facts['processor'] = '%s @ %s' % (system_profile['Processor Name'], system_profile['Processor Speed'])
            self.facts['processor_cores'] = self.sysctl['hw.physicalcpu']

    def get_memory_facts(self):
        self.facts['memtotal_mb'] = long(self.sysctl['hw.memsize']) / 1024 / 1024

        rc, out, err = module.run_command("sysctl hw.usermem")
        if rc == 0:
            self.facts['memfree_mb'] = long(out.splitlines()[-1].split()[1]) / 1024 / 1024


class Network(Facts):
    """
    This is a generic Network subclass of Facts.  This should be further
    subclassed to implement per platform.  If you subclass this,
    you must define:
    - interfaces (a list of interface names)
    - interface_<name> dictionary of ipv4, ipv6, and mac address information.

    All subclasses MUST define platform.
    """
    platform = 'Generic'

    IPV6_SCOPE = { '0' : 'global',
                   '10' : 'host',
                   '20' : 'link',
                   '40' : 'admin',
                   '50' : 'site',
                   '80' : 'organization' }

    def __new__(cls, *arguments, **keyword):
        subclass = cls
        for sc in Network.__subclasses__():
            if sc.platform == platform.system():
                subclass = sc
        return super(cls, subclass).__new__(subclass, *arguments, **keyword)

    def __init__(self, module):
        self.module = module
        Facts.__init__(self)

    def populate(self):
        return self.facts

class LinuxNetwork(Network):
    """
    This is a Linux-specific subclass of Network.  It defines
    - interfaces (a list of interface names)
    - interface_<name> dictionary of ipv4, ipv6, and mac address information.
    - all_ipv4_addresses and all_ipv6_addresses: lists of all configured addresses.
    - ipv4_address and ipv6_address: the first non-local address for each family.
    """
    platform = 'Linux'

    def __init__(self, module):
        Network.__init__(self, module)

    def populate(self):
        ip_path = self.module.get_bin_path('ip')
        if ip_path is None:
            return self.facts
        default_ipv4, default_ipv6 = self.get_default_interfaces(ip_path)
        interfaces, ips = self.get_interfaces_info(ip_path, default_ipv4, default_ipv6)
        self.facts['interfaces'] = interfaces.keys()
        for iface in interfaces:
            self.facts[iface] = interfaces[iface]
        self.facts['default_ipv4'] = default_ipv4
        self.facts['default_ipv6'] = default_ipv6
        self.facts['all_ipv4_addresses'] = ips['all_ipv4_addresses']
        self.facts['all_ipv6_addresses'] = ips['all_ipv6_addresses']
        return self.facts

    def get_default_interfaces(self, ip_path):
        # Use the commands:
        #     ip -4 route get 8.8.8.8                     -> Google public DNS
        #     ip -6 route get 2404:6800:400a:800::1012    -> ipv6.google.com
        # to find out the default outgoing interface, address, and gateway
        command = dict(
            v4 = [ip_path, '-4', 'route', 'get', '8.8.8.8'],
            v6 = [ip_path, '-6', 'route', 'get', '2404:6800:400a:800::1012']
        )
        interface = dict(v4 = {}, v6 = {})
        for v in 'v4', 'v6':
            if v == 'v6' and self.facts['os_family'] == 'RedHat' \
                and self.facts['distribution_version'].startswith('4.'):
                continue
            if v == 'v6' and not socket.has_ipv6:
                continue
            rc, out, err = module.run_command(command[v])
            if not out:
                # v6 routing may result in
                #   RTNETLINK answers: Invalid argument
                continue
            words = out.split('\n')[0].split()
            # A valid output starts with the queried address on the first line
            if len(words) > 0 and words[0] == command[v][-1]:
                for i in range(len(words) - 1):
                    if words[i] == 'dev':
                        interface[v]['interface'] = words[i+1]
                    elif words[i] == 'src':
                        interface[v]['address'] = words[i+1]
                    elif words[i] == 'via' and words[i+1] != command[v][-1]:
                        interface[v]['gateway'] = words[i+1]
        return interface['v4'], interface['v6']

    def get_interfaces_info(self, ip_path, default_ipv4, default_ipv6):
        interfaces = {}
        ips = dict(
            all_ipv4_addresses = [],
            all_ipv6_addresses = [],
        )

        for path in glob.glob('/sys/class/net/*'):
            if not os.path.isdir(path):
                continue
            device = os.path.basename(path)
            interfaces[device] = { 'device': device }
            if os.path.exists(os.path.join(path, 'address')):
                macaddress = get_file_content(os.path.join(path, 'address'), default='')
                if macaddress and macaddress != '00:00:00:00:00:00':
                    interfaces[device]['macaddress'] = macaddress
            if os.path.exists(os.path.join(path, 'mtu')):
                interfaces[device]['mtu'] = int(get_file_content(os.path.join(path, 'mtu')))
            if os.path.exists(os.path.join(path, 'operstate')):
                interfaces[device]['active'] = get_file_content(os.path.join(path, 'operstate')) != 'down'
#            if os.path.exists(os.path.join(path, 'carrier')):
#                interfaces[device]['link'] = get_file_content(os.path.join(path, 'carrier')) == '1'
            if os.path.exists(os.path.join(path, 'device','driver', 'module')):
                interfaces[device]['module'] = os.path.basename(os.path.realpath(os.path.join(path, 'device', 'driver', 'module')))
            if os.path.exists(os.path.join(path, 'type')):
                _type = get_file_content(os.path.join(path, 'type'))
                if _type == '1':
                    interfaces[device]['type'] = 'ether'
                elif _type == '512':
                    interfaces[device]['type'] = 'ppp'
                elif _type == '772':
                    interfaces[device]['type'] = 'loopback'
            if os.path.exists(os.path.join(path, 'bridge')):
                interfaces[device]['type'] = 'bridge'
                interfaces[device]['interfaces'] = [ os.path.basename(b) for b in glob.glob(os.path.join(path, 'brif', '*')) ]
                if os.path.exists(os.path.join(path, 'bridge', 'bridge_id')):
                    interfaces[device]['id'] = get_file_content(os.path.join(path, 'bridge', 'bridge_id'), default='')
                if os.path.exists(os.path.join(path, 'bridge', 'stp_state')):
                    interfaces[device]['stp'] = get_file_content(os.path.join(path, 'bridge', 'stp_state')) == '1'
            if os.path.exists(os.path.join(path, 'bonding')):
                interfaces[device]['type'] = 'bonding'
                interfaces[device]['slaves'] = get_file_content(os.path.join(path, 'bonding', 'slaves'), default='').split()
                interfaces[device]['mode'] = get_file_content(os.path.join(path, 'bonding', 'mode'), default='').split()[0]
                interfaces[device]['miimon'] = get_file_content(os.path.join(path, 'bonding', 'miimon'), default='').split()[0]
                interfaces[device]['lacp_rate'] = get_file_content(os.path.join(path, 'bonding', 'lacp_rate'), default='').split()[0]
                primary = get_file_content(os.path.join(path, 'bonding', 'primary'))
                if primary:
                    interfaces[device]['primary'] = primary
                    path = os.path.join(path, 'bonding', 'all_slaves_active')
                    if os.path.exists(path):
                        interfaces[device]['all_slaves_active'] = get_file_content(path) == '1'
            if os.path.exists(os.path.join(path,'device')):
                interfaces[device]['pciid'] = os.path.basename(os.readlink(os.path.join(path,'device')))

            # Check whether an interface is in promiscuous mode
            if os.path.exists(os.path.join(path,'flags')):
                promisc_mode = False
                # The second byte indicates whether the interface is in promiscuous mode.
                # 1 = promisc
                # 0 = no promisc
                data = int(get_file_content(os.path.join(path, 'flags')),16)
                promisc_mode = (data & 0x0100 > 0)
                interfaces[device]['promisc'] = promisc_mode

            def parse_ip_output(output, secondary=False):
                for line in output.split('\n'):
                    if not line:
                        continue
                    words = line.split()
                    broadcast = ''
                    if words[0] == 'inet':
                        if '/' in words[1]:
                            address, netmask_length = words[1].split('/')
                            if len(words) > 3:
                                broadcast = words[3]
                        else:
                            # pointopoint interfaces do not have a prefix
                            address = words[1]
                            netmask_length = "32"
                        address_bin = struct.unpack('!L', socket.inet_aton(address))[0]
                        netmask_bin = (1<<32) - (1<<32>>int(netmask_length))
                        netmask = socket.inet_ntoa(struct.pack('!L', netmask_bin))
                        network = socket.inet_ntoa(struct.pack('!L', address_bin & netmask_bin))
                        iface = words[-1]
                        if iface != device:
                            interfaces[iface] = {}
                        if not secondary and "ipv4" not in interfaces[iface]:
                            interfaces[iface]['ipv4'] = {'address': address,
                                                         'broadcast': broadcast,
                                                         'netmask': netmask,
                                                         'network': network}
                        else:
                            if "ipv4_secondaries" not in interfaces[iface]:
                                interfaces[iface]["ipv4_secondaries"] = []
                            interfaces[iface]["ipv4_secondaries"].append({
                                'address': address,
                                'broadcast': broadcast,
                                'netmask': netmask,
                                'network': network,
                            })

                        # add this secondary IP to the main device
                        if secondary:
                            if "ipv4_secondaries" not in interfaces[device]:
                                interfaces[device]["ipv4_secondaries"] = []
                            interfaces[device]["ipv4_secondaries"].append({
                                'address': address,
                                'broadcast': broadcast,
                                'netmask': netmask,
                                'network': network,
                            })

                        # If this is the default address, update default_ipv4
                        if 'address' in default_ipv4 and default_ipv4['address'] == address:
                            default_ipv4['broadcast'] = broadcast 
                            default_ipv4['netmask'] = netmask
                            default_ipv4['network'] = network
                            default_ipv4['macaddress'] = macaddress
                            default_ipv4['mtu'] = interfaces[device]['mtu']
                            default_ipv4['type'] = interfaces[device].get("type", "unknown")
                            default_ipv4['alias'] = words[-1]
                        if not address.startswith('127.'):
                            ips['all_ipv4_addresses'].append(address)
                    elif words[0] == 'inet6':
                        address, prefix = words[1].split('/')
                        scope = words[3]
                        if 'ipv6' not in interfaces[device]:
                            interfaces[device]['ipv6'] = []
                        interfaces[device]['ipv6'].append({
                            'address' : address,
                            'prefix'  : prefix,
                            'scope'   : scope
                        })
                        # If this is the default address, update default_ipv6
                        if 'address' in default_ipv6 and default_ipv6['address'] == address:
                            default_ipv6['prefix']     = prefix
                            default_ipv6['scope']      = scope
                            default_ipv6['macaddress'] = macaddress
                            default_ipv6['mtu']        = interfaces[device]['mtu']
                            default_ipv6['type']       = interfaces[device].get("type", "unknown")
                        if not address == '::1':
                            ips['all_ipv6_addresses'].append(address)

            ip_path = module.get_bin_path("ip")

            args = [ip_path, 'addr', 'show', 'primary', device]
            rc, stdout, stderr = self.module.run_command(args)
            primary_data = stdout

            args = [ip_path, 'addr', 'show', 'secondary', device]
            rc, stdout, stderr = self.module.run_command(args)
            secondary_data = stdout

            parse_ip_output(primary_data)
            parse_ip_output(secondary_data, secondary=True)

        # replace : by _ in interface name since they are hard to use in template
        new_interfaces = {}
        for i in interfaces:
            if ':' in i:
                new_interfaces[i.replace(':','_')] = interfaces[i]
            else:
                new_interfaces[i] = interfaces[i]
        return new_interfaces, ips

class GenericBsdIfconfigNetwork(Network):
    """
    This is a generic BSD subclass of Network using the ifconfig command.
    It defines
    - interfaces (a list of interface names)
    - interface_<name> dictionary of ipv4, ipv6, and mac address information.
    - all_ipv4_addresses and all_ipv6_addresses: lists of all configured addresses.
    It currently does not define
    - default_ipv4 and default_ipv6
    - type, mtu and network on interfaces
    """
    platform = 'Generic_BSD_Ifconfig'

    def __init__(self, module):
        Network.__init__(self, module)

    def populate(self):

        ifconfig_path = module.get_bin_path('ifconfig')

        if ifconfig_path is None:
            return self.facts
        route_path = module.get_bin_path('route')

        if route_path is None:
            return self.facts

        default_ipv4, default_ipv6 = self.get_default_interfaces(route_path)
        interfaces, ips = self.get_interfaces_info(ifconfig_path)
        self.merge_default_interface(default_ipv4, interfaces, 'ipv4')
        self.merge_default_interface(default_ipv6, interfaces, 'ipv6')
        self.facts['interfaces'] = interfaces.keys()

        for iface in interfaces:
            self.facts[iface] = interfaces[iface]

        self.facts['default_ipv4'] = default_ipv4
        self.facts['default_ipv6'] = default_ipv6
        self.facts['all_ipv4_addresses'] = ips['all_ipv4_addresses']
        self.facts['all_ipv6_addresses'] = ips['all_ipv6_addresses']

        return self.facts

    def get_default_interfaces(self, route_path):

        # Use the commands:
        #     route -n get 8.8.8.8                            -> Google public DNS
        #     route -n get -inet6 2404:6800:400a:800::1012    -> ipv6.google.com
        # to find out the default outgoing interface, address, and gateway

        command = dict(
            v4 = [route_path, '-n', 'get', '8.8.8.8'],
            v6 = [route_path, '-n', 'get', '-inet6', '2404:6800:400a:800::1012']
        )

        interface = dict(v4 = {}, v6 = {})

        for v in 'v4', 'v6':

            if v == 'v6' and not socket.has_ipv6:
                continue
            rc, out, err = module.run_command(command[v])
            if not out:
                # v6 routing may result in
                #   RTNETLINK answers: Invalid argument
                continue
            lines = out.split('\n')
            for line in lines:
                words = line.split()
                # Collect output from route command
                if len(words) > 1:
                    if words[0] == 'interface:':
                        interface[v]['interface'] = words[1]
                    if words[0] == 'gateway:':
                        interface[v]['gateway'] = words[1]

        return interface['v4'], interface['v6']

    def get_interfaces_info(self, ifconfig_path, ifconfig_options='-a'):
        interfaces = {}
        current_if = {}
        ips = dict(
            all_ipv4_addresses = [],
            all_ipv6_addresses = [],
        )
        # FreeBSD, DragonflyBSD, NetBSD, OpenBSD and OS X all implicitly add '-a'
        # when running the command 'ifconfig'.
        # Solaris must explicitly run the command 'ifconfig -a'.
        rc, out, err = module.run_command([ifconfig_path, ifconfig_options])

        for line in out.split('\n'):

            if line:
                words = line.split()

                if words[0] == 'pass':
                    continue
                elif re.match('^\S', line) and len(words) > 3:
                    current_if = self.parse_interface_line(words)
                    interfaces[ current_if['device'] ] = current_if
                elif words[0].startswith('options='):
                    self.parse_options_line(words, current_if, ips)
                elif words[0] == 'nd6':
                    self.parse_nd6_line(words, current_if, ips)
                elif words[0] == 'ether':
                    self.parse_ether_line(words, current_if, ips)
                elif words[0] == 'media:':
                    self.parse_media_line(words, current_if, ips)
                elif words[0] == 'status:':
                    self.parse_status_line(words, current_if, ips)
                elif words[0] == 'lladdr':
                    self.parse_lladdr_line(words, current_if, ips)
                elif words[0] == 'inet':
                    self.parse_inet_line(words, current_if, ips)
                elif words[0] == 'inet6':
                    self.parse_inet6_line(words, current_if, ips)
                else:
                    self.parse_unknown_line(words, current_if, ips)

        return interfaces, ips

    def parse_interface_line(self, words):
        device = words[0][0:-1]
        current_if = {'device': device, 'ipv4': [], 'ipv6': [], 'type': 'unknown'}
        current_if['flags']  = self.get_options(words[1])
        current_if['macaddress'] = 'unknown'    # will be overwritten later

        if len(words) >= 5 : # Newer FreeBSD versions
            current_if['metric'] = words[3]
            current_if['mtu'] = words[5]
        else:
            current_if['mtu'] = words[3]

        return current_if

    def parse_options_line(self, words, current_if, ips):
        # Mac has options like this...
        current_if['options'] = self.get_options(words[0])

    def parse_nd6_line(self, words, current_if, ips):
        # FreeBSD has options like this...
        current_if['options'] = self.get_options(words[1])

    def parse_ether_line(self, words, current_if, ips):
        current_if['macaddress'] = words[1]

    def parse_media_line(self, words, current_if, ips):
        # not sure if this is useful - we also drop information
        current_if['media'] = words[1]
        if len(words) > 2:
            current_if['media_select'] = words[2]
        if len(words) > 3:
            current_if['media_type'] = words[3][1:]
        if len(words) > 4:
            current_if['media_options'] = self.get_options(words[4])

    def parse_status_line(self, words, current_if, ips):
        current_if['status'] = words[1]

    def parse_lladdr_line(self, words, current_if, ips):
        current_if['lladdr'] = words[1]

    def parse_inet_line(self, words, current_if, ips):
        address = {'address': words[1]}
        # deal with hex netmask
        if re.match('([0-9a-f]){8}', words[3]) and len(words[3]) == 8:
            words[3] = '0x' + words[3]
        if words[3].startswith('0x'):
            address['netmask'] = socket.inet_ntoa(struct.pack('!L', int(words[3], base=16)))
        else:
            # otherwise assume this is a dotted quad
            address['netmask'] = words[3]
        # calculate the network
        address_bin = struct.unpack('!L', socket.inet_aton(address['address']))[0]
        netmask_bin = struct.unpack('!L', socket.inet_aton(address['netmask']))[0]
        address['network'] = socket.inet_ntoa(struct.pack('!L', address_bin & netmask_bin))
        # broadcast may be given or we need to calculate
        if len(words) > 5:
            address['broadcast'] = words[5]
        else:
            address['broadcast'] = socket.inet_ntoa(struct.pack('!L', address_bin | (~netmask_bin & 0xffffffff)))
        # add to our list of addresses
        if not words[1].startswith('127.'):
            ips['all_ipv4_addresses'].append(address['address'])
        current_if['ipv4'].append(address)

    def parse_inet6_line(self, words, current_if, ips):
        address = {'address': words[1]}
        if (len(words) >= 4) and (words[2] == 'prefixlen'):
            address['prefix'] = words[3]
        if (len(words) >= 6) and (words[4] == 'scopeid'):
            address['scope'] = words[5]
        localhost6 = ['::1', '::1/128', 'fe80::1%lo0']
        if address['address'] not in localhost6:
            ips['all_ipv6_addresses'].append(address['address'])
        current_if['ipv6'].append(address)

    def parse_unknown_line(self, words, current_if, ips):
        # we are going to ignore unknown lines here - this may be
        # a bad idea - but you can override it in your subclass
        pass

    def get_options(self, option_string):
        start = option_string.find('<') + 1
        end = option_string.rfind('>')
        if (start > 0) and (end > 0) and (end > start + 1):
            option_csv = option_string[start:end]
            return option_csv.split(',')
        else:
            return []

    def merge_default_interface(self, defaults, interfaces, ip_type):
        if not 'interface' in defaults.keys():
            return
        if not defaults['interface'] in interfaces:
            return
        ifinfo = interfaces[defaults['interface']]
        # copy all the interface values across except addresses
        for item in ifinfo.keys():
            if item != 'ipv4' and item != 'ipv6':
                defaults[item] = ifinfo[item]
        if len(ifinfo[ip_type]) > 0:
            for item in ifinfo[ip_type][0].keys():
                defaults[item] = ifinfo[ip_type][0][item]

class HPUXNetwork(Network):
    """
    HP-UX-specifig subclass of Network. Defines networking facts:
    - default_interface
    - interfaces (a list of interface names)
    - interface_<name> dictionary of ipv4 address information.
    """
    platform = 'HP-UX'

    def __init__(self, module):
        Network.__init__(self, module)

    def populate(self):
        netstat_path = self.module.get_bin_path('netstat')
        if netstat_path is None:
            return self.facts
        self.get_default_interfaces()
        interfaces = self.get_interfaces_info()
        self.facts['interfaces'] = interfaces.keys()
        for iface in interfaces:
                self.facts[iface] = interfaces[iface]
        return self.facts

    def get_default_interfaces(self):
        rc, out, err = module.run_command("/usr/bin/netstat -nr")
        lines = out.split('\n')
        for line in lines:
                words = line.split()
                if len(words) > 1:
                    if words[0] == 'default':
                        self.facts['default_interface'] = words[4]
                        self.facts['default_gateway'] = words[1]

    def get_interfaces_info(self):
        interfaces = {}
        rc, out, err = module.run_command("/usr/bin/netstat -ni")
        lines = out.split('\n')
        for line in lines:
            words = line.split()
            for i in range(len(words) - 1):
                if words[i][:3] == 'lan':
                    device = words[i]
                    interfaces[device] = { 'device': device }
                    address = words[i+3]
                    interfaces[device]['ipv4'] = { 'address': address }
                    network = words[i+2]
                    interfaces[device]['ipv4'] = { 'network': network,
                                                   'interface': device,
                                                   'address': address }
        return interfaces

class DarwinNetwork(GenericBsdIfconfigNetwork, Network):
    """
    This is the Mac OS X/Darwin Network Class.
    It uses the GenericBsdIfconfigNetwork unchanged
    """
    platform = 'Darwin'

    # media line is different to the default FreeBSD one
    def parse_media_line(self, words, current_if, ips):
        # not sure if this is useful - we also drop information
        current_if['media'] = 'Unknown' # Mac does not give us this
        current_if['media_select'] = words[1]
        if len(words) > 2:
            current_if['media_type'] = words[2][1:-1]
        if len(words) > 3:
            current_if['media_options'] = self.get_options(words[3])


class FreeBSDNetwork(GenericBsdIfconfigNetwork, Network):
    """
    This is the FreeBSD Network Class.
    It uses the GenericBsdIfconfigNetwork unchanged.
    """
    platform = 'FreeBSD'

class AIXNetwork(GenericBsdIfconfigNetwork, Network):
    """
    This is the AIX Network Class.
    It uses the GenericBsdIfconfigNetwork unchanged.
    """
    platform = 'AIX'

    def get_default_interfaces(self, route_path):
        netstat_path = module.get_bin_path('netstat')

        rc, out, err = module.run_command([netstat_path, '-nr'])

        interface = dict(v4 = {}, v6 = {})

        lines = out.split('\n')
        for line in lines:
            words = line.split()
            if len(words) > 1 and words[0] == 'default':
                if '.' in words[1]:
                    interface['v4']['gateway'] = words[1]
                    interface['v4']['interface'] = words[5]
                elif ':' in words[1]:
                    interface['v6']['gateway'] = words[1]
                    interface['v6']['interface'] = words[5]

        return interface['v4'], interface['v6']

    # AIX 'ifconfig -a' does not have three words in the interface line
    def get_interfaces_info(self, ifconfig_path, ifconfig_options):
        interfaces = {}
        current_if = {}
        ips = dict(
            all_ipv4_addresses = [],
            all_ipv6_addresses = [],
        )
        rc, out, err = module.run_command([ifconfig_path, ifconfig_options])

        for line in out.split('\n'):

            if line:
                words = line.split()

		# only this condition differs from GenericBsdIfconfigNetwork
                if re.match('^\w*\d*:', line):
                    current_if = self.parse_interface_line(words)
                    interfaces[ current_if['device'] ] = current_if
                elif words[0].startswith('options='):
                    self.parse_options_line(words, current_if, ips)
                elif words[0] == 'nd6':
                    self.parse_nd6_line(words, current_if, ips)
                elif words[0] == 'ether':
                    self.parse_ether_line(words, current_if, ips)
                elif words[0] == 'media:':
                    self.parse_media_line(words, current_if, ips)
                elif words[0] == 'status:':
                    self.parse_status_line(words, current_if, ips)
                elif words[0] == 'lladdr':
                    self.parse_lladdr_line(words, current_if, ips)
                elif words[0] == 'inet':
                    self.parse_inet_line(words, current_if, ips)
                elif words[0] == 'inet6':
                    self.parse_inet6_line(words, current_if, ips)
                else:
                    self.parse_unknown_line(words, current_if, ips)
            uname_path = module.get_bin_path('uname')
            if uname_path:
                rc, out, err = module.run_command([uname_path, '-W'])
                # don't bother with wpars it does not work
                # zero means not in wpar
                if not rc and out.split()[0] == '0':
                    if current_if['macaddress'] == 'unknown' and re.match('^en', current_if['device']):
                        entstat_path = module.get_bin_path('entstat')
                        if entstat_path:
                            rc, out, err = module.run_command([entstat_path, current_if['device'] ])
                            if rc != 0:
                                break
                            for line in out.split('\n'):
                                if not line:
                                    pass
                                buff = re.match('^Hardware Address: (.*)', line)
                                if buff:
                                    current_if['macaddress'] = buff.group(1)

                                buff = re.match('^Device Type:', line)
                                if buff and re.match('.*Ethernet', line):
                                    current_if['type'] = 'ether'
                    # device must have mtu attribute in ODM
                    if 'mtu' not in current_if:
                        lsattr_path = module.get_bin_path('lsattr')
                        if lsattr_path:
                            rc, out, err = module.run_command([lsattr_path,'-El', current_if['device'] ])
                            if rc != 0:
                                break
                            for line in out.split('\n'):
                                if line:
                                    words = line.split()
                                    if words[0] == 'mtu':
                                        current_if['mtu'] = words[1]
        return interfaces, ips

    # AIX 'ifconfig -a' does not inform about MTU, so remove current_if['mtu'] here
    def parse_interface_line(self, words):
        device = words[0][0:-1]
        current_if = {'device': device, 'ipv4': [], 'ipv6': [], 'type': 'unknown'}
        current_if['flags'] = self.get_options(words[1])
        current_if['macaddress'] = 'unknown'    # will be overwritten later
        return current_if

class OpenBSDNetwork(GenericBsdIfconfigNetwork, Network):
    """
    This is the OpenBSD Network Class.
    It uses the GenericBsdIfconfigNetwork.
    """
    platform = 'OpenBSD'

    # OpenBSD 'ifconfig -a' does not have information about aliases
    def get_interfaces_info(self, ifconfig_path, ifconfig_options='-aA'):
       return super(OpenBSDNetwork, self).get_interfaces_info(ifconfig_path, ifconfig_options)

    # Return macaddress instead of lladdr
    def parse_lladdr_line(self, words, current_if, ips):
        current_if['macaddress'] = words[1]

class SunOSNetwork(GenericBsdIfconfigNetwork, Network):
    """
    This is the SunOS Network Class.
    It uses the GenericBsdIfconfigNetwork.

    Solaris can have different FLAGS and MTU for IPv4 and IPv6 on the same interface
    so these facts have been moved inside the 'ipv4' and 'ipv6' lists.
    """
    platform = 'SunOS'

    # Solaris 'ifconfig -a' will print interfaces twice, once for IPv4 and again for IPv6.
    # MTU and FLAGS also may differ between IPv4 and IPv6 on the same interface.
    # 'parse_interface_line()' checks for previously seen interfaces before defining
    # 'current_if' so that IPv6 facts don't clobber IPv4 facts (or vice versa).
    def get_interfaces_info(self, ifconfig_path):
        interfaces = {}
        current_if = {}
        ips = dict(
            all_ipv4_addresses = [],
            all_ipv6_addresses = [],
        )
        rc, out, err = module.run_command([ifconfig_path, '-a'])

        for line in out.split('\n'):

            if line:
                words = line.split()

                if re.match('^\S', line) and len(words) > 3:
                    current_if = self.parse_interface_line(words, current_if, interfaces)
                    interfaces[ current_if['device'] ] = current_if
                elif words[0].startswith('options='):
                    self.parse_options_line(words, current_if, ips)
                elif words[0] == 'nd6':
                    self.parse_nd6_line(words, current_if, ips)
                elif words[0] == 'ether':
                    self.parse_ether_line(words, current_if, ips)
                elif words[0] == 'media:':
                    self.parse_media_line(words, current_if, ips)
                elif words[0] == 'status:':
                    self.parse_status_line(words, current_if, ips)
                elif words[0] == 'lladdr':
                    self.parse_lladdr_line(words, current_if, ips)
                elif words[0] == 'inet':
                    self.parse_inet_line(words, current_if, ips)
                elif words[0] == 'inet6':
                    self.parse_inet6_line(words, current_if, ips)
                else:
                    self.parse_unknown_line(words, current_if, ips)

        # 'parse_interface_line' and 'parse_inet*_line' leave two dicts in the
        # ipv4/ipv6 lists which is ugly and hard to read.
        # This quick hack merges the dictionaries. Purely cosmetic.
        for iface in interfaces:
            for v in 'ipv4', 'ipv6':
                combined_facts = {}
                for facts in interfaces[iface][v]:
                    combined_facts.update(facts)
                if len(combined_facts.keys()) > 0:
                    interfaces[iface][v] = [combined_facts]

        return interfaces, ips

    def parse_interface_line(self, words, current_if, interfaces):
        device = words[0][0:-1]
        if device not in interfaces.keys():
            current_if = {'device': device, 'ipv4': [], 'ipv6': [], 'type': 'unknown'}
        else:
            current_if = interfaces[device]
        flags = self.get_options(words[1])
        v = 'ipv4'
        if 'IPv6' in flags:
            v = 'ipv6'
        current_if[v].append({'flags': flags, 'mtu': words[3]})
        current_if['macaddress'] = 'unknown'    # will be overwritten later
        return current_if

    # Solaris displays single digit octets in MAC addresses e.g. 0:1:2:d:e:f
    # Add leading zero to each octet where needed.
    def parse_ether_line(self, words, current_if, ips):
        macaddress = ''
        for octet in words[1].split(':'):
            octet = ('0' + octet)[-2:None]
            macaddress += (octet + ':')
        current_if['macaddress'] = macaddress[0:-1]

class Virtual(Facts):
    """
    This is a generic Virtual subclass of Facts.  This should be further
    subclassed to implement per platform.  If you subclass this,
    you should define:
    - virtualization_type
    - virtualization_role
    - container (e.g. solaris zones, freebsd jails, linux containers)

    All subclasses MUST define platform.
    """

    def __new__(cls, *arguments, **keyword):
        subclass = cls
        for sc in Virtual.__subclasses__():
            if sc.platform == platform.system():
                subclass = sc
        return super(cls, subclass).__new__(subclass, *arguments, **keyword)

    def __init__(self):
        Facts.__init__(self)

    def populate(self):
        return self.facts

class LinuxVirtual(Virtual):
    """
    This is a Linux-specific subclass of Virtual.  It defines
    - virtualization_type
    - virtualization_role
    """
    platform = 'Linux'

    def __init__(self):
        Virtual.__init__(self)

    def populate(self):
        self.get_virtual_facts()
        return self.facts

    # For more information, check: http://people.redhat.com/~rjones/virt-what/
    def get_virtual_facts(self):
        if os.path.exists("/proc/xen"):
            self.facts['virtualization_type'] = 'xen'
            self.facts['virtualization_role'] = 'guest'
            try:
                for line in get_file_lines('/proc/xen/capabilities'):
                    if "control_d" in line:
                        self.facts['virtualization_role'] = 'host'
            except IOError:
                pass
            return

        if os.path.exists('/proc/vz'):
            self.facts['virtualization_type'] = 'openvz'
            if os.path.exists('/proc/bc'):
                self.facts['virtualization_role'] = 'host'
            else:
                self.facts['virtualization_role'] = 'guest'
            return

        systemd_container = get_file_content('/run/systemd/container')
        if systemd_container:
            self.facts['virtualization_type'] = systemd_container
            self.facts['virtualization_role'] = 'guest'
            return

        if os.path.exists('/proc/1/cgroup'):
            for line in get_file_lines('/proc/1/cgroup'):
                if re.search(r'/docker(/|-[0-9a-f]+\.scope)', line):
                    self.facts['virtualization_type'] = 'docker'
                    self.facts['virtualization_role'] = 'guest'
                    return
                if re.search('/lxc/', line):
                    self.facts['virtualization_type'] = 'lxc'
                    self.facts['virtualization_role'] = 'guest'
                    return

        product_name = get_file_content('/sys/devices/virtual/dmi/id/product_name')

        if product_name in ['KVM', 'Bochs']:
            self.facts['virtualization_type'] = 'kvm'
            self.facts['virtualization_role'] = 'guest'
            return

        if product_name == 'RHEV Hypervisor':
            self.facts['virtualization_type'] = 'RHEV'
            self.facts['virtualization_role'] = 'guest'
            return

        if product_name == 'VMware Virtual Platform':
            self.facts['virtualization_type'] = 'VMware'
            self.facts['virtualization_role'] = 'guest'
            return

        bios_vendor = get_file_content('/sys/devices/virtual/dmi/id/bios_vendor')

        if bios_vendor == 'Xen':
            self.facts['virtualization_type'] = 'xen'
            self.facts['virtualization_role'] = 'guest'
            return

        if bios_vendor == 'innotek GmbH':
            self.facts['virtualization_type'] = 'virtualbox'
            self.facts['virtualization_role'] = 'guest'
            return

        sys_vendor = get_file_content('/sys/devices/virtual/dmi/id/sys_vendor')

        # FIXME: This does also match hyperv
        if sys_vendor == 'Microsoft Corporation':
            self.facts['virtualization_type'] = 'VirtualPC'
            self.facts['virtualization_role'] = 'guest'
            return

        if sys_vendor == 'Parallels Software International Inc.':
            self.facts['virtualization_type'] = 'parallels'
            self.facts['virtualization_role'] = 'guest'
            return

        if sys_vendor == 'QEMU':
            self.facts['virtualization_type'] = 'kvm'
            self.facts['virtualization_role'] = 'guest'
            return

        if sys_vendor == 'oVirt':
            self.facts['virtualization_type'] = 'kvm'
            self.facts['virtualization_role'] = 'guest'
            return

        if os.path.exists('/proc/self/status'):
            for line in get_file_lines('/proc/self/status'):
                if re.match('^VxID: \d+', line):
                    self.facts['virtualization_type'] = 'linux_vserver'
                    if re.match('^VxID: 0', line):
                        self.facts['virtualization_role'] = 'host'
                    else:
                        self.facts['virtualization_role'] = 'guest'
                    return

        if os.path.exists('/proc/cpuinfo'):
            for line in get_file_lines('/proc/cpuinfo'):
                if re.match('^model name.*QEMU Virtual CPU', line):
                    self.facts['virtualization_type'] = 'kvm'
                elif re.match('^vendor_id.*User Mode Linux', line):
                    self.facts['virtualization_type'] = 'uml'
                elif re.match('^model name.*UML', line):
                    self.facts['virtualization_type'] = 'uml'
                elif re.match('^vendor_id.*PowerVM Lx86', line):
                    self.facts['virtualization_type'] = 'powervm_lx86'
                elif re.match('^vendor_id.*IBM/S390', line):
                    self.facts['virtualization_type'] = 'PR/SM'
                    lscpu = module.get_bin_path('lscpu')
                    if lscpu:
                        rc, out, err = module.run_command(["lscpu"])
                        if rc == 0:
                            for line in out.split("\n"):
                                data = line.split(":", 1)
                                key = data[0].strip()
                                if key == 'Hypervisor':
                                    self.facts['virtualization_type'] = data[1].strip()
                    else:
                        self.facts['virtualization_type'] = 'ibm_systemz'
                else:
                    continue
                if self.facts['virtualization_type'] == 'PR/SM':
                    self.facts['virtualization_role'] = 'LPAR'
                else:
                    self.facts['virtualization_role'] = 'guest'
                return

        # Beware that we can have both kvm and virtualbox running on a single system
        if os.path.exists("/proc/modules") and os.access('/proc/modules', os.R_OK):
            modules = []
            for line in get_file_lines("/proc/modules"):
                data = line.split(" ", 1)
                modules.append(data[0])

            if 'kvm' in modules:
                self.facts['virtualization_type'] = 'kvm'
                self.facts['virtualization_role'] = 'host'
                return

            if 'vboxdrv' in modules:
                self.facts['virtualization_type'] = 'virtualbox'
                self.facts['virtualization_role'] = 'host'
                return

        # If none of the above matches, return 'NA' for virtualization_type
        # and virtualization_role. This allows for proper grouping.
        self.facts['virtualization_type'] = 'NA'
        self.facts['virtualization_role'] = 'NA'
        return

class FreeBSDVirtual(Virtual):
    """
    This is a FreeBSD-specific subclass of Virtual.  It defines
    - virtualization_type
    - virtualization_role
    """
    platform = 'FreeBSD'

    def __init__(self):
        Virtual.__init__(self)

    def populate(self):
        self.get_virtual_facts()
        return self.facts

    def get_virtual_facts(self):
        self.facts['virtualization_type'] = ''
        self.facts['virtualization_role'] = ''

class OpenBSDVirtual(Virtual):
    """
    This is a OpenBSD-specific subclass of Virtual.  It defines
    - virtualization_type
    - virtualization_role
    """
    platform = 'OpenBSD'

    def __init__(self):
        Virtual.__init__(self)

    def populate(self):
        self.get_virtual_facts()
        return self.facts

    def get_virtual_facts(self):
        self.facts['virtualization_type'] = ''
        self.facts['virtualization_role'] = ''

class HPUXVirtual(Virtual):
    """
    This is a HP-UX specific subclass of Virtual. It defines
    - virtualization_type
    - virtualization_role
    """
    platform = 'HP-UX'

    def __init__(self):
        Virtual.__init__(self)

    def populate(self):
        self.get_virtual_facts()
        return self.facts

    def get_virtual_facts(self):
        if os.path.exists('/usr/sbin/vecheck'):
            rc, out, err = module.run_command("/usr/sbin/vecheck")
            if rc == 0:
                self.facts['virtualization_type'] = 'guest'
                self.facts['virtualization_role'] = 'HP vPar'
        if os.path.exists('/opt/hpvm/bin/hpvminfo'):
            rc, out, err = module.run_command("/opt/hpvm/bin/hpvminfo")
            if rc == 0 and re.match('.*Running.*HPVM vPar.*', out):
                self.facts['virtualization_type'] = 'guest'
                self.facts['virtualization_role'] = 'HPVM vPar'
            elif rc == 0 and re.match('.*Running.*HPVM guest.*', out):
                self.facts['virtualization_type'] = 'guest'
                self.facts['virtualization_role'] = 'HPVM IVM'
            elif rc == 0 and re.match('.*Running.*HPVM host.*', out):
                self.facts['virtualization_type'] = 'host'
                self.facts['virtualization_role'] = 'HPVM'
        if os.path.exists('/usr/sbin/parstatus'):
            rc, out, err = module.run_command("/usr/sbin/parstatus")
            if rc == 0:
                self.facts['virtualization_type'] = 'guest'
                self.facts['virtualization_role'] = 'HP nPar'


class SunOSVirtual(Virtual):
    """
    This is a SunOS-specific subclass of Virtual.  It defines
    - virtualization_type
    - virtualization_role
    - container
    """
    platform = 'SunOS'

    def __init__(self):
        Virtual.__init__(self)

    def populate(self):
        self.get_virtual_facts()
        return self.facts

    def get_virtual_facts(self):
        rc, out, err = module.run_command("/usr/sbin/prtdiag")
        for line in out.split('\n'):
            if 'VMware' in line:
                self.facts['virtualization_type'] = 'vmware'
                self.facts['virtualization_role'] = 'guest'
            if 'Parallels' in line:
                self.facts['virtualization_type'] = 'parallels'
                self.facts['virtualization_role'] = 'guest'
            if 'VirtualBox' in line:
                self.facts['virtualization_type'] = 'virtualbox'
                self.facts['virtualization_role'] = 'guest'
            if 'HVM domU' in line:
                self.facts['virtualization_type'] = 'xen'
                self.facts['virtualization_role'] = 'guest'
        # Check if it's a zone
        if os.path.exists("/usr/bin/zonename"):
            rc, out, err = module.run_command("/usr/bin/zonename")
            if out.rstrip() != "global":
                self.facts['container'] = 'zone'
        # Check if it's a branded zone (i.e. Solaris 8/9 zone)
        if os.path.isdir('/.SUNWnative'):
            self.facts['container'] = 'zone'
        # If it's a zone check if we can detect if our global zone is itself virtualized.
        # Relies on the "guest tools" (e.g. vmware tools) to be installed
        if 'container' in self.facts and self.facts['container'] == 'zone':
            rc, out, err = module.run_command("/usr/sbin/modinfo")
            for line in out.split('\n'):
                if 'VMware' in line:
                    self.facts['virtualization_type'] = 'vmware'
                    self.facts['virtualization_role'] = 'guest'
                if 'VirtualBox' in line:
                    self.facts['virtualization_type'] = 'virtualbox'
                    self.facts['virtualization_role'] = 'guest'
        # Detect domaining on Sparc hardware
        if os.path.exists("/usr/sbin/virtinfo"):
            # The output of virtinfo is different whether we are on a machine with logical
            # domains ('LDoms') on a T-series or domains ('Domains') on a M-series. Try LDoms first.
            rc, out, err = module.run_command("/usr/sbin/virtinfo -p")
            # The output contains multiple lines with different keys like this:
            #   DOMAINROLE|impl=LDoms|control=false|io=false|service=false|root=false
            # The output may also be not formatted and the returncode is set to 0 regardless of the error condition:
            #   virtinfo can only be run from the global zone
            try:
                for line in out.split('\n'):
                    fields = line.split('|')
                    if( fields[0] == 'DOMAINROLE' and fields[1] == 'impl=LDoms' ):
                        self.facts['virtualization_type'] = 'ldom'
                        self.facts['virtualization_role'] = 'guest'
                        hostfeatures = []
                        for field in fields[2:]:
                            arg = field.split('=')
                            if( arg[1] == 'true' ):
                                hostfeatures.append(arg[0])
                        if( len(hostfeatures) > 0 ):
                            self.facts['virtualization_role'] = 'host (' + ','.join(hostfeatures) + ')'
            except ValueError, e:
                pass

def get_file_content(path, default=None, strip=True):
    data = default
    if os.path.exists(path) and os.access(path, os.R_OK):
        try:
            datafile = open(path)
            data = datafile.read()
            if strip:
                data = data.strip()
            if len(data) == 0:
                data = default
        finally:
            datafile.close()
    return data

def get_file_lines(path):
    '''file.readlines() that closes the file'''
    datafile = open(path)
    try:
        return datafile.readlines()
    finally:
        datafile.close()

def ansible_facts(module):
    facts = {}
    facts.update(Facts().populate())
    facts.update(Hardware().populate())
    facts.update(Network(module).populate())
    facts.update(Virtual().populate())
    return facts

# ===========================================

def get_all_facts(module):

    setup_options = dict(module_setup=True)
    facts = ansible_facts(module)

    for (k, v) in facts.items():
        setup_options["ansible_%s" % k.replace('-', '_')] = v

    # Look for the path to the facter, cfacter, and ohai binaries and set
    # the variable to that path.

    facter_path = module.get_bin_path('facter')
    cfacter_path = module.get_bin_path('cfacter')
    ohai_path = module.get_bin_path('ohai')

    # Prefer to use cfacter if available
    if cfacter_path is not None:
        facter_path = cfacter_path
    # if facter is installed, and we can use --json because
    # ruby-json is ALSO installed, include facter data in the JSON

    if facter_path is not None:
        rc, out, err = module.run_command(facter_path + " --json")
        facter = True
        try:
            facter_ds = json.loads(out)
        except:
            facter = False
        if facter:
            for (k,v) in facter_ds.items():
                setup_options["facter_%s" % k] = v

    # ditto for ohai

    if ohai_path is not None:
        rc, out, err = module.run_command(ohai_path)
        ohai = True
        try:
            ohai_ds = json.loads(out)
        except:
            ohai = False
        if ohai:
            for (k,v) in ohai_ds.items():
                k2 = "ohai_%s" % k.replace('-', '_')
                setup_options[k2] = v

    setup_result = { 'ansible_facts': {} }

    for (k,v) in setup_options.items():
        if module.params['filter'] == '*' or fnmatch.fnmatch(k, module.params['filter']):
            setup_result['ansible_facts'][k] = v

    # hack to keep --verbose from showing all the setup module results
    setup_result['_ansible_verbose_override'] = True

    return setup_result
