-"""network configuration"""
+"""
+network configuration
+"""
-import sioc
-import bwlimit
+# system provided modules
+import os
+
+# PlanetLab system modules
+import sioc, plnet
+
+# local modules
+import plnode.bwlimit as bwlimit
import logger
+import iptables
+import tools
+
+# we can't do anything without a network
+priority = 1
+
+dev_default = tools.get_default_if()
+
+
+def start():
+ logger.log("net: plugin starting up...")
+
+def GetSlivers(data, config, plc):
+ # added by caglar
+ # band-aid for short period as old API returns networks instead of interfaces
+ global KEY_NAME
+ KEY_NAME = "interfaces"
+ #################
+
+ logger.verbose("net: GetSlivers called.")
+ if not 'interfaces' in data:
+ # added by caglar
+ # band-aid for short period as old API returns networks instead of interfaces
+ # logger.log_missing_data('net.GetSlivers', 'interfaces')
+ # return
+ if not 'networks' in data:
+ logger.log_missing_data('net.GetSlivers', 'interfaces')
+ return
+ else:
+ KEY_NAME = "networks"
+ ##################
+
+ plnet.InitInterfaces(logger, plc, data)
+ if 'OVERRIDES' in dir(config):
+ if config.OVERRIDES.get('net_max_rate') == '-1':
+ logger.log("net: Slice and node BW Limits disabled.")
+ if len(bwlimit.tc("class show dev %s" % dev_default)):
+ logger.verbose("net: *** DISABLING NODE BW LIMITS ***")
+ bwlimit.stop()
+ else:
+ InitNodeLimit(data)
+ InitI2(plc, data)
+ else:
+ InitNodeLimit(data)
+ InitI2(plc, data)
+ InitNAT(plc, data)
+
+
+def InitNodeLimit(data):
-def GetSlivers(data):
# query running network interfaces
devs = sioc.gifconf()
- ips = dict(zip(devs.values(), devs.keys()))
+ ips = dict(list(zip(list(devs.values()), list(devs.keys()))))
macs = {}
for dev in devs:
macs[sioc.gifhwaddr(dev).lower()] = dev
- # XXX Exempt Internet2 destinations from node bwlimits
- # bwlimit.exempt_init('Internet2', internet2_ips)
-
- for d in data:
- for network in d['networks']:
- # Get interface name preferably from MAC address, falling
- # back on IP address.
- if macs.has_key(network['mac'].lower()):
- dev = macs[network['mac'].lower()]
- elif ips.has_key(network['ip']):
- dev = ips[network['ip']]
- else:
- logger.log('%s: no such interface with address %s/%s' % (self.name, network['ip'], network['mac']))
- continue
+ for interface in data[KEY_NAME]:
+ # Get interface name preferably from MAC address, falling
+ # back on IP address.
+ hwaddr=interface['mac']
+ if hwaddr != None: hwaddr=hwaddr.lower()
+ if hwaddr in macs:
+ dev = macs[interface['mac']]
+ elif interface['ip'] in ips:
+ dev = ips[interface['ip']]
+ else:
+ logger.log('net: %s: no such interface with address %s/%s' % (interface['hostname'], interface['ip'], interface['mac']))
+ continue
+
+ # Get current node cap
+ try:
+ old_bwlimit = bwlimit.get_bwcap(dev)
+ except:
+ old_bwlimit = None
- # Get current node cap
- try:
- old_bwlimit = bwlimit.get_bwcap(dev)
- except:
- old_bwlimit = None
+ # Get desired node cap
+ if interface['bwlimit'] is None or interface['bwlimit'] < 0:
+ new_bwlimit = bwlimit.bwmax
+ else:
+ new_bwlimit = interface['bwlimit']
- # Get desired node cap
- if network['bwlimit'] is None or network['bwlimit'] < 0:
- new_bwlimit = bwlimit.bwmax
- else:
- new_bwlimit = network['bwlimit']
+ if old_bwlimit != new_bwlimit:
+ # Reinitialize bandwidth limits
+ bwlimit.init(dev, new_bwlimit)
- if old_bwlimit != new_bwlimit:
- # Reinitialize bandwidth limits
- bwlimit.init(dev, new_bwlimit)
+ # XXX This should trigger an rspec refresh in case
+ # some previously invalid sliver bwlimit is now valid
+ # again, or vice-versa.
- # XXX This should trigger an rspec refresh in case
- # some previously invalid sliver bwlimit is now valid
- # again, or vice-versa.
+def InitI2(plc, data):
+ if not 'groups' in data: return
-def start(options, config):
- pass
+ if "Internet2" in data['groups']:
+ logger.log("net: This is an Internet2 node. Setting rules.")
+ i2nodes = []
+ i2nodeids = plc.GetNodeGroups(["Internet2"])[0]['node_ids']
+ for node in plc.GetInterfaces({"node_id": i2nodeids}, ["ip"]):
+ # Get the IPs
+ i2nodes.append(node['ip'])
+ # this will create the set if it doesn't already exist
+ # and add IPs that don't exist in the set rather than
+ # just recreateing the set.
+ bwlimit.exempt_init('Internet2', i2nodes)
+
+ # set the iptables classification rule if it doesnt exist.
+ cmd = '-A POSTROUTING -m set --set Internet2 dst -j CLASSIFY --set-class 0001:2000 --add-mark'
+ rules = []
+ ipt = os.popen("/sbin/iptables-save")
+ for line in ipt.readlines(): rules.append(line.strip(" \n"))
+ ipt.close()
+ if cmd not in rules:
+ logger.verbose("net: Adding iptables rule for Internet2")
+ os.popen("/sbin/iptables -t mangle " + cmd)
+
+def InitNAT(plc, data):
+
+ # query running network interfaces
+ devs = sioc.gifconf()
+ ips = dict(list(zip(list(devs.values()), list(devs.keys()))))
+ macs = {}
+ for dev in devs:
+ macs[sioc.gifhwaddr(dev).lower()] = dev
+
+ ipt = iptables.IPTables()
+ for interface in data[KEY_NAME]:
+ # Get interface name preferably from MAC address, falling
+ # back on IP address.
+ hwaddr=interface['mac']
+ if hwaddr != None: hwaddr=hwaddr.lower()
+ if hwaddr in macs:
+ dev = macs[interface['mac']]
+ elif interface['ip'] in ips:
+ dev = ips[interface['ip']]
+ else:
+ logger.log('net: %s: no such interface with address %s/%s' % (interface['hostname'], interface['ip'], interface['mac']))
+ continue
+
+ try:
+ settings = plc.GetInterfaceTags({'interface_tag_id': interface['interface_tag_ids']})
+ except:
+ continue
+
+ for setting in settings:
+ if setting['category'].upper() != 'FIREWALL':
+ continue
+ if setting['name'].upper() == 'EXTERNAL':
+ # Enable NAT for this interface
+ ipt.add_ext(dev)
+ elif setting['name'].upper() == 'INTERNAL':
+ ipt.add_int(dev)
+ elif setting['name'].upper() == 'PF': # XXX Uglier code is hard to find...
+ for pf in setting['value'].split("\n"):
+ fields = {}
+ for field in pf.split(","):
+ (key, val) = field.split("=", 2)
+ fields[key] = val
+ if 'new_dport' not in fields:
+ fields['new_dport'] = fields['dport']
+ if 'source' not in fields:
+ fields['source'] = "0.0.0.0/0"
+ ipt.add_pf(fields)
+ ipt.commit()
git://git.onelab.eu / nodemanager.git / blobdiff