X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net.py;h=2bd220c019e37461e777ec0244c0b0ab1ec28e8b;hb=956140ef211c9353634c0b4be1c598bf1f3ddfe1;hp=bfd9113a28d86e7ae8ed82ad82f92dedbe8604bd;hpb=a53c6df31a0acdd9a0081d6ded652f6b0d734e54;p=nodemanager.git diff --git a/net.py b/net.py index bfd9113..2bd220c 100644 --- a/net.py +++ b/net.py @@ -1,10 +1,20 @@ +# +# $Id$ +# """network configuration""" import sioc import bwlimit import logger +import string +import iptables -def GetSlivers(data): +def GetSlivers(plc, data): + InitNodeLimit(data) + InitI2(plc, data) + InitNAT(plc, data) + +def InitNodeLimit(data): # query running network interfaces devs = sioc.gifconf() ips = dict(zip(devs.values(), devs.keys())) @@ -14,16 +24,15 @@ def GetSlivers(data): # XXX Exempt Internet2 destinations from node bwlimits # bwlimit.exempt_init('Internet2', internet2_ips) - - for network in d['networks']: + for network in data['networks']: # Get interface name preferably from MAC address, falling # back on IP address. - if macs.has_key(network['mac'].lower()): + if macs.has_key(network['mac']): 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'])) + logger.log('%s: no such interface with address %s/%s' % (network['hostname'], network['ip'], network['mac'])) continue # Get current node cap @@ -46,5 +55,60 @@ def GetSlivers(data): # some previously invalid sliver bwlimit is now valid # again, or vice-versa. +def InitI2(plc, data): + if "Internet2" in data['groups']: + logger.log("This is an Internet2 node. Setting rules.") + i2nodes = [] + i2nodeids = plc.GetNodeGroups(["Internet2"])[0]['node_ids'] + for node in plc.GetInterfaces({"node_id": i2nodeids}, ["ip"]): + i2nodes.append(node['ip']) + bwlimit.exempt_init('Internet2', i2nodes) + +def InitNAT(plc, data): + # query running network interfaces + devs = sioc.gifconf() + ips = dict(zip(devs.values(), devs.keys())) + macs = {} + for dev in devs: + macs[sioc.gifhwaddr(dev).lower()] = dev + + ipt = iptables.IPTables() + for network in data['networks']: + # Get interface name preferably from MAC address, falling + # back on IP address. + if macs.has_key(network['mac']): + 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' % (network['hostname'], network['ip'], network['mac'])) + continue + + try: + settings = plc.GetInterfaceSettings({'interface_setting_id': network['interface_setting_ids']}) + except: + continue + # XXX arbitrary names + 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() + def start(options, config): pass