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#!/usr/bin/env python
from subprocess import call, Popen, PIPE
from IPy import IP
import sys
import subprocess
import dbus
import string
import socket
import re
import os
import fcntl
import glib
import gobject
import dbus.service
import dbus.mainloop.glib
from ConfigParser import SafeConfigParser
import glob
import obmc.mapper
#MAC address mask for locally administered.
MAC_LOCAL_ADMIN_MASK = 0x20000000000
BROADCAST_MAC = 0xFFFFFFFFFFFF
DBUS_NAME = 'org.openbmc.NetworkManager'
OBJ_NAME = '/org/openbmc/NetworkManager/Interface'
INV_INTF_NAME = 'xyz.openbmc_project.Inventory.Item.NetworkInterface'
INVENTORY_ROOT = '/xyz/openbmc_project/inventory'
MAC_PROPERTY = 'MACAddress'
network_providers = {
'networkd' : {
'bus_name' : 'org.freedesktop.network1',
'ip_object_name' : '/org/freedesktop/network1/network/default',
'hw_object_name' : '/org/freedesktop/network1/link/_31',
'ip_if_name' : 'org.freedesktop.network1.Network',
'hw_if_name' : 'org.freedesktop.network1.Link',
'method' : 'org.freedesktop.network1.Network.SetAddr'
},
'NetworkManager' : {
'bus_name' : 'org.freedesktop.NetworkManager',
'ip_object_name' : '/org/freedesktop/NetworkManager',
'hw_object_name' : '/org/freedesktop/NetworkManager',
'ip_if_name' : 'org.freedesktop.NetworkManager',
'hw_if_name' : 'org.freedesktop.NetworkManager',
'method' : 'org.freedesktop.NetworkManager' # FIXME:
},
}
def getPrefixLen(mask):
prefixLen = sum([bin(int(x)).count('1') for x in mask.split('.')])
return prefixLen
# Enable / Disable the UseDHCP setting in .network file
def modifyNetConfig(confFile, usentp):
parser = SafeConfigParser()
parser.optionxform = str
parser.read(confFile)
sections = parser.sections()
if "Match" not in sections:
raise NameError, "[Match] section not found"
interface = parser.get('Match', 'Name')
if interface == '':
raise NameError, "Invalid interface"
if "DHCP" not in sections:
parser.add_section("DHCP")
if usentp.lower() == "yes":
parser.set('DHCP', 'UseNTP', "true")
elif usentp.lower() == "no":
parser.set('DHCP', 'UseNTP', "false")
print "Updating" + confFile + '\n'
with open(confFile, 'wb') as configfile:
parser.write(configfile)
rc = call(["ip", "addr", "flush", interface])
rc = call(["systemctl", "restart", "systemd-networkd.service"])
rc = call(["systemctl", "try-restart", "systemd-timesyncd.service"])
return rc
# Get Mac address from the eeprom
def get_mac_from_eeprom():
bus = dbus.SystemBus()
mapper = obmc.mapper.Mapper(bus)
# Get the inventory subtree, limited
# to objects that implement NetworkInterface.
for path, info in \
mapper.get_subtree(
path=INVENTORY_ROOT,
interfaces=[INV_INTF_NAME]).iteritems():
# Find a NetworkInterface with 'bmc' in the path.
if 'bmc' not in path:
continue
# Only expecting a single service to implement
# NetworkInterface. Get the service connection
# from the mapper response
conn = info.keys()[0]
# Get the inventory object implementing NetworkInterface.
obj = bus.get_object(conn, path)
# Get the MAC address
mproxy = obj.get_dbus_method('Get', dbus.PROPERTIES_IFACE)
return mproxy(INV_INTF_NAME, MAC_PROPERTY)
class IfAddr ():
def __init__ (self, family, scope, flags, prefixlen, addr, gw):
self.family = family
self.scope = scope
self.flags = flags
self.prefixlen = prefixlen
self.addr = addr
self.gw = gw
class NetMan (dbus.service.Object):
def __init__(self, bus, name):
self.bus = bus
self.name = name
dbus.service.Object.__init__(self,bus,name)
def setNetworkProvider(self, provider):
self.provider = provider
def _isvaliddev(self, device):
devices = os.listdir ("/sys/class/net")
if not device in devices : return False
else: return True
def _ishwdev (self, device):
f = open ("/sys/class/net/"+device+"/type")
type = f.read()
return False if (int(type) == 772) else True
def _isvalidmask (self, mask):
for x in mask.split('.'):
try:
y = int(x)
except:
return False
if y > 255: return False
return mask.count('.') == 3
def validatemac(self, mac):
macre = '([a-fA-F0-9]{2}[:|\-]?){6}'
if re.compile(macre).search(mac) is None:
raise ValueError("Malformed MAC address")
# Don't allow Broadcast or global unique mac
int_mac = int(mac.replace(":", ""), 16)
if not (int_mac ^ BROADCAST_MAC):
raise ValueError("Given Mac is BroadCast Mac Address")
if not int_mac & MAC_LOCAL_ADMIN_MASK:
eep_mac = get_mac_from_eeprom()
if eep_mac:
int_eep_mac = int(eep_mac, 16)
if int_eep_mac != int_mac:
raise ValueError("Given MAC address is neither a local Admin type \
nor is same as in eeprom")
def _isvalidipv4(self, ipstr, netmask):
ip_parts = ipstr.split(".")
if len(ip_parts) != 4:
return "Malformed"
first, second, third, fourth = [int(part) for part in ip_parts]
if first == 0 and second == 0 and third == 0 and fourth == 0:
return "Invalid" # "this" network disallowed
if first == 169 and second == 254:
return "Link Local"
if first >= 224:
return "Invalid" # class D multicast and class E disallowed
if first == 192 and second == 88 and third == 99:
return "Invalid" # ipv6 relay
# check validity against netmask
if netmask != '0':
ip_bin = (first << 24) + (second << 16) + (third << 8) + fourth
mask_parts = netmask.split(".")
if len(mask_parts) == 4: # long form netmask
mask_bin = (int(mask_parts[0]) << 24) + (int(mask_parts[1]) << 16) + (int(mask_parts[2]) << 8) + int(mask_parts[3])
elif netmask.count(".") == 0: # short form netmask
mask_bin = 0xffffffff ^ (1 << 32 - int(netmask)) - 1
else:
return "Malformed" # bad netmask
if ip_bin & ~mask_bin == 0:
return "Invalid" # disallowed by this netmask
if ip_bin | mask_bin == 0xFFFFFFFF:
return "Invalid" # disallowed by this netmask
return "Valid"
def _isvalidip(self, ipaddr, netmask = '0'):
try:
ip = IP(ipaddr)
except ValueError:
return "Malformed"
ipstr = ip.strNormal(0)
ipstr_masked = ip.strNormal(2)
if ipstr_masked.count("/") != 0 and netmask == '0':
netmask = ipstr_masked.split("/")[1]
if ip.version() == 4: # additional checks for ipv4
return self._isvalidipv4(ipstr, netmask)
# TODO: check ipv6 openbmc/openbmc#496
return "Valid"
def _getAddr (self, target, device):
netprov = network_providers [self.provider]
bus_name = netprov ['bus_name']
if (target == "ip"):
ipaddr = ""
defgw = ""
prefixlen = "0"
proc = subprocess.Popen(["ip", "addr", "show", "dev", device], stdout=PIPE)
procout = proc.communicate()
if procout:
ipout = procout[0].splitlines()[2].strip()
ipaddr,prefixlen = ipout.split ()[1].split("/")
proc = subprocess.Popen(["ip", "route", "show", "dev", device, "default", "0.0.0.0/0"], stdout=PIPE)
procout = proc.communicate()
if procout[0]:
ipout = procout[0].splitlines()[0].strip()
defgw = ipout.split ()[2]
return 2, int(prefixlen), ipaddr, defgw
if (target == "mac"):
proc = subprocess.Popen(["ip", "link", "show", "dev", device], stdout=PIPE)
ipout = proc.communicate()[0].splitlines()[1].strip()
mac = ipout.split ()[1]
return mac
def _checkNetworkForRequiredFields(self, device):
parser = SafeConfigParser()
parser.optionxform = str
parser.read("/etc/systemd/network/00-bmc-" + device + ".network")
sections = parser.sections()
if "Match" not in sections:
parser.add_section("Match")
parser.set("Match", "Name", device)
if "Network" not in sections:
parser.add_section("Network")
if "Link" not in sections:
parser.add_section("Link")
mac = self._getAddr("mac", device)
try:
self.validatemac(mac)
parser.set("Link", MAC_PROPERTY, mac)
except ValueError as e:
print("System MAC Address invalid:" + e)
return parser
def _upDownNetworkService(self, device, mac=None):
print "Restarting networkd service..."
subprocess.check_call(["ip", "link", "set", "dev", device, "down"])
if mac is not None:
subprocess.check_call(["fw_setenv", "ethaddr", mac])
subprocess.check_call(
["ip", "link", "set", "dev", device, "address", mac])
subprocess.check_call(
["systemctl", "restart", "systemd-networkd.service"])
return 0
@dbus.service.method(DBUS_NAME, "sas", "x")
def SetNtpServer (self, device, ntpservers):
if not self._isvaliddev (device) : raise ValueError, "Invalid Device"
# Convert the array into space separated value string
ntp_ip = " ".join(ntpservers)
if not ntp_ip : raise ValueError, "Invalid Data"
confFile = "/etc/systemd/network/00-bmc-" + device + ".network"
parser = SafeConfigParser()
parser.optionxform = str
parser.read(confFile)
sections = parser.sections()
if "Match" not in sections:
raise NameError, "[Match] section not found"
interface = parser.get('Match', 'Name')
if interface != device:
raise ValueError, "Device [" + device + "] Not Configured"
if "Network" not in sections:
raise NameError, "[Network] section not found"
parser.set('Network', 'NTP', ntp_ip)
print "Updating " + confFile + '\n'
with open(confFile, 'wb') as configfile:
parser.write(configfile)
rc = call(["ip", "addr", "flush", device])
rc = call(["systemctl", "restart", "systemd-networkd.service"])
rc = call(["systemctl", "try-restart", "systemd-timesyncd.service"])
return rc
@dbus.service.method(DBUS_NAME, "s", "x")
def UpdateUseNtpField (self, usentp):
filelist = glob.glob("/etc/systemd/network/*.network")
for configfile in filelist:
modifyNetConfig(configfile,usentp)
return 0
@dbus.service.method(DBUS_NAME, "s", "x")
def EnableDHCP(self, device):
if not self._isvaliddev(device):
raise ValueError("Invalid Device")
parser = self._checkNetworkForRequiredFields(device)
parser.set("Network", "DHCP", "yes")
if "DHCP" not in parser.sections():
parser.add_section("DHCP")
parser.set("DHCP", "ClientIdentifier", "mac")
# Write to config file
with open("/etc/systemd/network/00-bmc-" + device + ".network", 'w') \
as configfile:
parser.write(configfile)
return (subprocess.check_call(
["systemctl", "restart", "systemd-networkd.service"]))
@dbus.service.method(DBUS_NAME, "ssss", "x")
def SetAddress4(self, device, ipaddr, netmask, gateway):
if not self._isvaliddev(device): raise ValueError, "Invalid Device"
if not self._isvalidmask(netmask): raise ValueError, "Invalid Mask"
prefixLen = getPrefixLen(netmask)
if prefixLen == 0: raise ValueError, "Invalid Mask"
valid = self._isvalidip(ipaddr, netmask)
if valid != "Valid": raise ValueError, valid + " IP Address"
valid = self._isvalidip(gateway)
if valid != "Valid": raise ValueError, valid + " IP Address"
parser = self._checkNetworkForRequiredFields(device)
parser.set("Network", "DHCP", "no")
parser.set("Network", "Address", '{}/{}'.format(ipaddr, prefixLen))
parser.set("Network", "Gateway", gateway)
with open("/etc/systemd/network/00-bmc-" + device + ".network", 'w') \
as configfile:
parser.write(configfile)
return (subprocess.check_call(
["systemctl", "restart", "systemd-networkd.service"]))
@dbus.service.method(DBUS_NAME, "s", "s")
def GetAddressType (self, device):
if not self._isvaliddev (device) : raise ValueError, "Invalid Device"
confFile = "/etc/systemd/network/00-bmc-" + device + ".network"
if not os.path.exists(confFile):
print "Config file (%s) not found !" % confFile
netprov = network_providers [self.provider]
bus_name = netprov ['bus_name']
obj_name = netprov ['ip_object_name']
o = self.bus.get_object(bus_name, obj_name, introspect=False)
i = dbus.Interface(o, 'org.freedesktop.DBus.Properties')
f = i.Get (netprov ['ip_if_name'], "SourcePath")
print "Using default networkd config file (%s)" % f
confFile = f
parser = self._checkNetworkForRequiredFields(device)
if parser.has_option("Network", "DHCP") is True:
mode = parser.get("Network", "DHCP")
else:
return "Unknown"
setting = {
'yes': 'DHCP',
'true': 'DHCP',
'no': 'STATIC'
}
setting.get(mode.lower(), "Unknown")
return setting
#family, prefixlen, ip, defgw
@dbus.service.method(DBUS_NAME, "s", "iyss")
def GetAddress4 (self, device):
if not self._isvaliddev (device) : raise ValueError, "Invalid Device"
return self._getAddr ("ip", device)
@dbus.service.method(DBUS_NAME, "s", "s")
def GetHwAddress (self, device):
if not self._isvaliddev (device) : raise ValueError, "Invalid Device"
return self._getAddr ("mac", device)
@dbus.service.method(DBUS_NAME, "ss", "i")
def SetHwAddress (self, device, mac):
if not self._isvaliddev (device) : raise ValueError, "Invalid Device"
if not self._ishwdev (device) : raise ValueError, "Not a Hardware Device"
self.validatemac(mac)
parser = self._checkNetworkForRequiredFields(device)
parser.set("Link", MAC_PROPERTY, mac)
with open("/etc/systemd/network/00-bmc-" + device + ".network", 'w') as configfile:
parser.write(configfile)
rc = subprocess.call(["fw_setenv", "ethaddr", mac])
print("Restarting networkd service...")
rc = call(["ip", "link", "set", "dev", device, "down"])
rc = call(["ip", "link", "set", "dev", device, "address", mac])
rc = call(["ip", "link", "set", "dev", device, "up"])
rc = call(["systemctl", "restart", "systemd-networkd.service"])
return rc
#string of nameservers
@dbus.service.method(DBUS_NAME,"s", "s")
def SetNameServers (self, nameservers):
dns_entry = nameservers.split()
fail_msg = ''
dhcp_auto = False
file_opened = False
if len(dns_entry) > 0:
for dns in dns_entry:
valid = self._isvalidip (dns)
if valid != "Valid":
if dns == "DHCP_AUTO=":
#This DNS is supplied by DHCP.
dhcp_auto = True
else:
print valid + " DNS Address [" + dns + "]"
fail_msg = fail_msg + '[' + dns + ']'
else:
#Only over write on a first valid input
if file_opened == False:
resolv_conf = open("/etc/resolv.conf",'w')
file_opened = True
if dhcp_auto == True:
resolv_conf.write("### Generated automatically via DHCP ###\n")
else:
resolv_conf.write("### Generated manually via dbus settings ###\n")
dns_ip = 'nameserver ' + dns + '\n'
resolv_conf.write(dns_ip)
if file_opened == True:
resolv_conf.close()
else:
raise ValueError, "Invalid DNS entry"
if len(fail_msg) > 0:
return 'Failures encountered processing' + fail_msg
else:
return "DNS entries updated Successfully"
@dbus.service.method(DBUS_NAME, "s", "x")
def SetHostname(self, hostname):
subprocess.check_call(["hostnamectl", "set-hostname", hostname])
subprocess.check_call(
["systemctl", "restart", "systemd-networkd.service"])
return 0
@dbus.service.method(DBUS_NAME, "", "s")
def GetHostname(self):
value = subprocess.check_output("hostname")
return value.rstrip()
@dbus.service.method(DBUS_NAME, "ss", "x")
def SetGateway(self, device, gateway):
if not self._isvaliddev(device):
raise ValueError("Invalid Device")
valid = self._isvalidip(gateway)
if valid != "Valid":
raise ValueError(valid + " IP Address")
parser = self._checkNetworkForRequiredFields(device)
if "no" not in parser.get("Network", "DHCP"):
raise EnvironmentError("DHCP is on")
parser.set("Network", "Gateway", gateway)
with open("/etc/systemd/network/00-bmc-" + device + ".network", 'w') \
as configfile:
parser.write(configfile)
return (subprocess.check_call(
["systemctl", "restart", "systemd-networkd.service"]))
@dbus.service.method(DBUS_NAME, "s", "s")
def GetGateway(self, device):
if not self._isvaliddev(device):
raise ValueError("Invalid Device")
return self._getAddr("ip", device)[3]
def main():
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
bus = dbus.SystemBus()
name = dbus.service.BusName(DBUS_NAME, bus)
obj = NetMan (bus, OBJ_NAME)
obj.setNetworkProvider ("networkd")
mainloop = gobject.MainLoop()
print("Started")
mainloop.run()
if __name__ == '__main__':
sys.exit(main())
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