+#!/usr/bin/python /usr/bin/plcsh
# $Id$
import os
import socket
import time
import tempfile
+import errno
import sioc
import modprobe
-def InitInterfaces(logger, plc, data, root="", files_only=False):
+global version
+version = 4.3
+
+def InitInterfaces(logger, plc, data, root="", files_only=False, program="NodeManager"):
+ global version
+
sysconfig = "%s/etc/sysconfig/network-scripts" % root
+ try:
+ os.makedirs(sysconfig)
+ except OSError, e:
+ if e.errno != errno.EEXIST:
+ raise e
# query running network interfaces
devs = sioc.gifconf()
for dev in devs:
macs[sioc.gifhwaddr(dev).lower()] = dev
- # assume data['networks'] contains this node's NodeNetworks
- interfaces = {}
- interface = 1
+ devices_map = {}
+ device_id = 1
hostname = data.get('hostname',socket.gethostname())
- networks = data['networks']
+ gateway = None
+ # assume data['interfaces'] contains this node's Interfaces
+ # can cope with 4.3 ('networks') or 5.0 ('interfaces')
+ try:
+ interfaces = data['interfaces']
+ except:
+ interfaces = data['networks']
failedToGetSettings = False
- for network in networks:
- logger.verbose('net:InitInterfaces interface %d: %s'%(interface,network))
- logger.verbose('net:InitInterfaces macs = %s' % macs)
- logger.verbose('net:InitInterfaces ips = %s' % ips)
+
+ # NOTE: GetInterfaces/NodeNetworks does not necessarily order the interfaces
+ # returned. Because 'interface'is decremented as each interface is processed,
+ # by the time is_primary=True (primary) interface is reached, the device
+ # "eth%s" % interface, is not eth0. But, something like eth-4, or eth-12.
+ # This code sorts the interfaces, placing is_primary=True interfaces first.
+ # There is a lot of room for improvement to how this
+ # script handles interfaces and how it chooses the primary interface.
+ def compare_by (fieldname):
+ def compare_two_dicts (a, b):
+ return cmp(a[fieldname], b[fieldname])
+ return compare_two_dicts
+
+ # NOTE: by sorting on 'is_primary' and then reversing (since False is sorted
+ # before True) all 'is_primary' interfaces are at the beginning of the list.
+ interfaces.sort( compare_by('is_primary') )
+ interfaces.reverse()
+
+ for interface in interfaces:
+ logger.verbose('net:InitInterfaces interface %d: %r'%(device_id,interface))
+ logger.verbose('net:InitInterfaces macs = %r' % macs)
+ logger.verbose('net:InitInterfaces ips = %r' % ips)
# Get interface name preferably from MAC address, falling back
# on IP address.
- hwaddr=network['mac']
+ hwaddr=interface['mac']
if hwaddr <> None: hwaddr=hwaddr.lower()
if hwaddr in macs:
orig_ifname = macs[hwaddr]
- elif network['ip'] in ips:
- orig_ifname = ips[network['ip']]
+ elif interface['ip'] in ips:
+ orig_ifname = ips[interface['ip']]
else:
orig_ifname = None
- if orig_ifname:
- logger.verbose('net:InitInterfaces orig_ifname = %s' % orig_ifname)
-
- inter = {}
- inter['ONBOOT']='yes'
- inter['USERCTL']='no'
- if network['mac']:
- inter['HWADDR'] = network['mac']
-
- if network['method'] == "static":
- inter['BOOTPROTO'] = "static"
- inter['IPADDR'] = network['ip']
- inter['NETMASK'] = network['netmask']
-
- elif network['method'] == "dhcp":
- inter['BOOTPROTO'] = "dhcp"
- if network['hostname']:
- inter['DHCP_HOSTNAME'] = network['hostname']
+ if orig_ifname:
+ logger.verbose('net:InitInterfaces orig_ifname = %s' % orig_ifname)
+
+ details = {}
+ details['ONBOOT']='yes'
+ details['USERCTL']='no'
+ if interface['mac']:
+ details['HWADDR'] = interface['mac']
+ if interface['is_primary']:
+ details['PRIMARY']='yes'
+
+ if interface['method'] == "static":
+ details['BOOTPROTO'] = "static"
+ details['IPADDR'] = interface['ip']
+ details['NETMASK'] = interface['netmask']
+ details['GATEWAY'] = interface['gateway']
+ if interface['is_primary']:
+ gateway = interface['gateway']
+ if interface['dns1']:
+ details['DNS1'] = interface['dns1']
+ if interface['dns2']:
+ details['DNS2'] = interface['dns2']
+
+ elif interface['method'] == "dhcp":
+ details['BOOTPROTO'] = "dhcp"
+ details['PERSISTENT_DHCLIENT'] = "yes"
+ if interface['hostname']:
+ details['DHCP_HOSTNAME'] = interface['hostname']
else:
- inter['DHCP_HOSTNAME'] = hostname
- if not network['is_primary']:
- inter['DHCLIENTARGS'] = "-R subnet-mask"
+ details['DHCP_HOSTNAME'] = hostname
+ if not interface['is_primary']:
+ details['DHCLIENTARGS'] = "-R subnet-mask"
+
+ if 'interface_tag_ids' in interface:
+ version = 4.3
+ interface_tag_ids = "interface_tag_ids"
+ interface_tag_id = "interface_tag_id"
+ name_key = "tagname"
+ else:
+ version = 4.2
+ interface_tag_ids = "nodenetwork_setting_ids"
+ interface_tag_id = "nodenetwork_setting_id"
+ name_key = "name"
- if len(network['interface_tag_ids']) > 0:
+ if len(interface[interface_tag_ids]) > 0:
try:
- settings = plc.GetInterfaceTags({'interface_tag_id':
- network['interface_tag_ids']})
+ if version == 4.3:
+ settings = plc.GetInterfaceTags({interface_tag_id:interface[interface_tag_ids]})
+ else:
+ settings = plc.GetNodeNetworkSettings({interface_tag_id:interface[interface_tag_ids]})
except:
logger.log("net:InitInterfaces FATAL: failed call GetInterfaceTags({'interface_tag_id':{%s})"% \
- network['interface_tag_ids'])
+ interface[interface_tag_ids])
failedToGetSettings = True
- continue # on to the next network
+ continue # on to the next interface
for setting in settings:
- # to explicitly set interface name
- settingname = setting['name'].upper()
+ settingname = setting[name_key].upper()
if settingname in ('IFNAME','ALIAS','CFGOPTIONS','DRIVER'):
- inter[settingname]=setting['value']
+ details[settingname]=setting['value']
+ # wireless settings
+ elif settingname in \
+ [ "MODE", "ESSID", "NW", "FREQ", "CHANNEL", "SENS", "RATE",
+ "KEY", "KEY1", "KEY2", "KEY3", "KEY4", "SECURITYMODE",
+ "IWCONFIG", "IWPRIV" ] :
+ details [settingname] = setting['value']
+ details ['TYPE']='Wireless'
else:
- logger.log("net:InitInterfaces WARNING: ignored setting named %s"%setting['name'])
+ logger.log("net:InitInterfaces WARNING: ignored setting named %s"%setting[name_key])
# support aliases to interfaces either by name or HWADDR
- if 'ALIAS' in inter:
- if 'HWADDR' in inter:
- hwaddr = inter['HWADDR'].lower()
- del inter['HWADDR']
+ if 'ALIAS' in details:
+ if 'HWADDR' in details:
+ hwaddr = details['HWADDR'].lower()
+ del details['HWADDR']
if hwaddr in macs:
hwifname = macs[hwaddr]
- if ('IFNAME' in inter) and inter['IFNAME'] <> hwifname:
+ if ('IFNAME' in details) and details['IFNAME'] <> hwifname:
logger.log("net:InitInterfaces WARNING: alias ifname (%s) and hwaddr ifname (%s) do not match"%\
- (inter['IFNAME'],hwifname))
- inter['IFNAME'] = hwifname
+ (details['IFNAME'],hwifname))
+ details['IFNAME'] = hwifname
else:
- logger.log('net:InitInterfaces WARNING: mac addr %s for alias not found' %(hwaddr,alias))
+ logger.log('net:InitInterfaces WARNING: mac addr %s for alias not found' %(hwaddr))
- if 'IFNAME' in inter:
+ if 'IFNAME' in details:
# stupid RH /etc/sysconfig/network-scripts/ifup-aliases:new_interface()
# checks if the "$DEVNUM" only consists of '^[0-9A-Za-z_]*$'. Need to make
# our aliases compliant.
- parts = inter['ALIAS'].split('_')
+ parts = details['ALIAS'].split('_')
isValid=True
for part in parts:
isValid=isValid and part.isalnum()
if isValid:
- interfaces["%s:%s" % (inter['IFNAME'],inter['ALIAS'])] = inter
+ devices_map["%s:%s" % (details['IFNAME'],details['ALIAS'])] = details
else:
- logger.log("net:InitInterfaces WARNING: interface alias (%s) not a valid string for RH ifup-aliases"% inter['ALIAS'])
+ logger.log("net:InitInterfaces WARNING: interface alias (%s) not a valid string for RH ifup-aliases"% details['ALIAS'])
else:
- logger.log("net:InitInterfaces WARNING: interface alias (%s) not matched to an interface"% inter['ALIAS'])
- interface -= 1
+ logger.log("net:InitInterfaces WARNING: interface alias (%s) not matched to an interface"% details['ALIAS'])
+ device_id -= 1
else:
- if ('IFNAME' not in inter) and not orig_ifname:
- ifname="eth%d" % (interface-1)
- # should check if $ifname is an eth already defines
+ if 'IFNAME' in details:
+ ifname = details['IFNAME']
+ device_id -= 1
+ elif orig_ifname:
+ ifname = orig_ifname
+ device_id -= 1
+ else:
+ while True:
+ ifname="eth%d" % (device_id-1)
+ if ifname not in devices_map:
+ break
+ device_id += 1
if os.path.exists("%s/ifcfg-%s"%(sysconfig,ifname)):
logger.log("net:InitInterfaces WARNING: possibly blowing away %s configuration"%ifname)
- else:
- if ('IFNAME' not in inter) and orig_ifname:
- ifname = orig_ifname
- else:
- ifname = inter['IFNAME']
- interface -= 1
- interfaces[ifname] = inter
-
+ devices_map[ifname] = details
+ device_id += 1
m = modprobe.Modprobe()
- m.input("%s/etc/modprobe.conf" % root)
- for (dev, inter) in interfaces.iteritems():
+ try:
+ m.input("%s/etc/modprobe.conf" % root)
+ except:
+ pass
+ for (dev, details) in devices_map.iteritems():
# get the driver string "moduleName option1=a option2=b"
- driver=inter.get('DRIVER','')
+ driver=details.get('DRIVER','')
if driver <> '':
driver=driver.split()
kernelmodule=driver[0]
options=" ".join(driver[1:])
if options <> '':
m.optionsset(dev,options)
- m.output("%s/etc/modprobe.conf" % root)
+ m.output("%s/etc/modprobe.conf" % root, program)
# clean up after any ifcfg-$dev script that's no longer listed as
- # part of the NodeNetworks associated with this node
+ # part of the Interfaces associated with this node
# list all network-scripts
files = os.listdir(sysconfig)
if lo in ifcfgs: ifcfgs.remove(lo)
# remove known devices from icfgs list
- for (dev, inter) in interfaces.iteritems():
+ for (dev, details) in devices_map.iteritems():
ifcfg = 'ifcfg-'+dev
if ifcfg in ifcfgs: ifcfgs.remove(ifcfg)
for ifcfg in ifcfgs:
dev = ifcfg[len('ifcfg-'):]
path = "%s/ifcfg-%s" % (sysconfig,dev)
- logger.verbose("net:InitInterfaces removing %s %s"%(dev,path))
- os.system("/sbin/ifdown %s" % dev)
+ if not files_only:
+ logger.verbose("net:InitInterfaces removing %s %s"%(dev,path))
+ os.system("/sbin/ifdown %s" % dev)
deletedSomething=True
os.unlink(path)
if deletedSomething:
time.sleep(2)
- # Process ifcg-$dev changes / additions
+ # Write network configuration file
+ networkconf = file("%s/etc/sysconfig/network" % root, "w")
+ networkconf.write("NETWORKING=yes\nHOSTNAME=%s\n" % hostname)
+ if gateway is not None:
+ networkconf.write("GATEWAY=%s\n" % gateway)
+ networkconf.close()
+
+ # Process ifcfg-$dev changes / additions
newdevs = []
- for (dev, inter) in interfaces.iteritems():
+ for (dev, details) in devices_map.iteritems():
(fd, tmpnam) = tempfile.mkstemp(dir=sysconfig)
f = os.fdopen(fd, "w")
- f.write("# Autogenerated by NodeManager/net.py.... do not edit!\n")
- if 'DRIVER' in inter:
- f.write("# using %s driver for device %s\n" % (inter['DRIVER'],dev))
- f.write('DEVICE="%s"\n' % dev)
+ f.write("# Autogenerated by pyplnet... do not edit!\n")
+ if 'DRIVER' in details:
+ f.write("# using %s driver for device %s\n" % (details['DRIVER'],dev))
+ f.write('DEVICE=%s\n' % dev)
# print the configuration values
- for (key, val) in inter.iteritems():
+ for (key, val) in details.iteritems():
if key not in ('IFNAME','ALIAS','CFGOPTIONS','DRIVER'):
- f.write('%s="%s"\n' % (key, val))
+ f.write('%s=%s\n' % (key, val))
# print the configuration specific option values (if any)
- if 'CFGOPTIONS' in inter:
- cfgoptions = inter['CFGOPTIONS']
+ if 'CFGOPTIONS' in details:
+ cfgoptions = details['CFGOPTIONS']
f.write('#CFGOPTIONS are %s\n' % cfgoptions)
for cfgoption in cfgoptions.split():
key,val = cfgoption.split('=')
val=val.strip()
f.write('%s="%s"\n' % (key,val))
f.close()
+ os.close(fd)
# compare whether two files are the same
def comparefiles(a,b):
try:
- logger.verbose("net:InitInterfaces comparing %s with %s" % (a,b))
+ logger.verbose("net:InitInterfaces comparing %s with %s" % (a,b))
if not os.path.exists(a): return False
fb = open(a)
buf_a = fb.read()
except IOError, e:
return False
+ src_route_changed = False
+ if ('PRIMARY' not in details and 'GATEWAY' in details and
+ details['GATEWAY'] != ''):
+ i = len(dev) - 1
+ while dev[i - 1].isdigit():
+ i -= 1
+ table = 10 + int(dev[i:])
+ (fd, rule_tmpnam) = tempfile.mkstemp(dir=sysconfig)
+ os.write(fd, "from %s lookup %d\n" % (details['IPADDR'], table))
+ os.close(fd)
+ rule_dest = "%s/rule-%s" % (sysconfig, dev)
+ if not comparefiles(rule_tmpnam, rule_dest):
+ os.unlink(rule_dest)
+ os.rename(rule_tmpnam, rule_dest)
+ os.chmod(0644, rule_dest)
+ src_route_changed = True
+ else:
+ os.unlink(rule_tmpnam)
+ (fd, route_tmpnam) = tempfile.mkstemp(dir=sysconfig)
+ netmask = struct.unpack("I", socket.inet_aton(details['NETMASK']))[0]
+ ip = struct.unpack("I", socket.inet_aton(details['IPADDR']))[0]
+ network = socket.inet_ntoa(struct.pack("I", (ip & netmask)))
+ netmask = socket.ntohl(netmask)
+ i = 0
+ while (netmask & (1 << i)) == 0:
+ i += 1
+ prefix = 32 - i
+ os.write(fd, "%s/%d dev %s table %d\n" % (network, prefix, dev, table))
+ os.write(fd, "default via %s dev %s table %d\n" % (details['GATEWAY'], dev, table))
+ os.close(fd)
+ route_dest = "%s/route-%s" % (sysconfig, dev)
+ if not comparefiles(route_tmpnam, route_dest):
+ os.unlink(route_dest)
+ os.rename(route_tmpnam, route_dest)
+ os.chmod(0644, route_dest)
+ src_route_changed = True
+ else:
+ os.unlink(route_tmpnam)
+
path = "%s/ifcfg-%s" % (sysconfig,dev)
if not os.path.exists(path):
logger.verbose('net:InitInterfaces adding configuration for %s' % dev)
os.chmod(path,0644)
newdevs.append(dev)
- elif not comparefiles(tmpnam,path):
+ elif not comparefiles(tmpnam,path) or src_route_changed:
logger.verbose('net:InitInterfaces Configuration change for %s' % dev)
- logger.verbose('net:InitInterfaces ifdown %s' % dev)
- # invoke ifdown for the old configuration
- os.system("/sbin/ifdown %s" % dev)
- # wait a few secs for ifdown to complete
- time.sleep(2)
+ if not files_only:
+ logger.verbose('net:InitInterfaces ifdown %s' % dev)
+ # invoke ifdown for the old configuration
+ os.system("/sbin/ifdown %s" % dev)
+ # wait a few secs for ifdown to complete
+ time.sleep(2)
logger.log('replacing configuration for %s' % dev)
# replace ifcfg-$dev configuration file
# handle those correctly
if getvar("SLAVE") == 'yes': continue
- logger.verbose('net:InitInterfaces bringing up %s' % dev)
- os.system("/sbin/ifup %s" % dev)
-
+ if not files_only:
+ logger.verbose('net:InitInterfaces bringing up %s' % dev)
+ os.system("/sbin/ifup %s" % dev)
+
+if __name__ == "__main__":
+ import optparse
+ import sys
+
+ parser = optparse.OptionParser(usage="plnet [-v] [-f] [-p <program>] -r root node_id")
+ parser.add_option("-v", "--verbose", action="store_true", dest="verbose")
+ parser.add_option("-r", "--root", action="store", type="string",
+ dest="root", default=None)
+ parser.add_option("-f", "--files-only", action="store_true",
+ dest="files_only")
+ parser.add_option("-p", "--program", action="store", type="string",
+ dest="program", default="plnet")
+ (options, args) = parser.parse_args()
+ if len(args) != 1 or options.root is None:
+ print >>sys.stderr, "Missing root or node_id"
+ parser.print_help()
+ sys.exit(1)
+
+ node = shell.GetNodes({'node_id': [int(args[0])]})
+ try:
+ interfaces = shell.GetInterfaces({'interface_id': node[0]['interface_ids']})
+ except AttributeError:
+ interfaces = shell.GetNodeNetworks({'nodenetwork_id':node[0]['nodenetwork_ids']})
+ version = 4.2
+
+
+ data = {'hostname': node[0]['hostname'], 'interfaces': interfaces}
+ class logger:
+ def __init__(self, verbose):
+ self.verbosity = verbose
+ def log(self, msg, loglevel=2):
+ if self.verbosity:
+ print msg
+ def verbose(self, msg):
+ self.log(msg, 1)
+ l = logger(options.verbose)
+ InitInterfaces(l, shell, data, options.root, options.files_only)
git://git.onelab.eu / pyplnet.git / blobdiff