4 """network configuration"""
6 # system provided modules
7 import os, string, time, socket
9 # PlanetLab system modules
13 import bwlimit, logger, iptables
15 def GetSlivers(plc, data, config):
16 logger.verbose("net:GetSlivers called.")
17 InitInterfaces(plc, data) # writes sysconfig files.
18 if 'OVERRIDES' in dir(config):
19 if config.OVERRIDES.get('net_max_rate') == '-1':
20 logger.log("net: Slice and node BW Limits disabled.")
21 if len(bwlimit.tc("class show dev eth0")):
22 logger.verbose("*** DISABLING NODE BW LIMITS ***")
33 def InitNodeLimit(data):
34 # query running network interfaces
36 ips = dict(zip(devs.values(), devs.keys()))
39 macs[sioc.gifhwaddr(dev).lower()] = dev
41 for network in data['networks']:
42 # Get interface name preferably from MAC address, falling
44 if macs.has_key(network['mac'].lower()):
45 dev = macs[network['mac'].lower()]
46 elif ips.has_key(network['ip']):
47 dev = ips[network['ip']]
49 logger.log('%s: no such interface with address %s/%s' % (network['hostname'], network['ip'], network['mac']))
52 # Get current node cap
54 old_bwlimit = bwlimit.get_bwcap(dev)
58 # Get desired node cap
59 if network['bwlimit'] is None or network['bwlimit'] < 0:
60 new_bwlimit = bwlimit.bwmax
62 new_bwlimit = network['bwlimit']
64 if old_bwlimit != new_bwlimit:
65 # Reinitialize bandwidth limits
66 bwlimit.init(dev, new_bwlimit)
68 # XXX This should trigger an rspec refresh in case
69 # some previously invalid sliver bwlimit is now valid
70 # again, or vice-versa.
72 def InitI2(plc, data):
73 if "Internet2" in data['groups']:
74 logger.log("This is an Internet2 node. Setting rules.")
76 i2nodeids = plc.GetNodeGroups(["Internet2"])[0]['node_ids']
77 for node in plc.GetInterfaces({"node_id": i2nodeids}, ["ip"]):
79 i2nodes.append(node['ip'])
80 # this will create the set if it doesn't already exist
81 # and add IPs that don't exist in the set rather than
82 # just recreateing the set.
83 bwlimit.exempt_init('Internet2', i2nodes)
85 # set the iptables classification rule if it doesnt exist.
86 cmd = '-A POSTROUTING -m set --set Internet2 dst -j CLASSIFY --set-class 0001:2000 --add-mark'
88 ipt = os.popen("/sbin/iptables-save")
89 for line in ipt.readlines(): rules.append(line.strip(" \n"))
92 logger.verbose("net: Adding iptables rule for Internet2")
93 os.popen("/sbin/iptables -t mangle " + cmd)
95 def InitNAT(plc, data):
96 # query running network interfaces
98 ips = dict(zip(devs.values(), devs.keys()))
101 macs[sioc.gifhwaddr(dev).lower()] = dev
103 ipt = iptables.IPTables()
104 for network in data['networks']:
105 # Get interface name preferably from MAC address, falling
106 # back on IP address.
107 if macs.has_key(network['mac']):
108 dev = macs[network['mac'].lower()]
109 elif ips.has_key(network['ip']):
110 dev = ips[network['ip']]
112 logger.log('%s: no such interface with address %s/%s' % (network['hostname'], network['ip'], network['mac']))
116 settings = plc.GetInterfaceTags({'interface_tag_id': network['interface_tag_ids']})
119 # XXX arbitrary names
120 for setting in settings:
121 if setting['category'].upper() != 'FIREWALL':
123 if setting['name'].upper() == 'EXTERNAL':
124 # Enable NAT for this interface
126 elif setting['name'].upper() == 'INTERNAL':
128 elif setting['name'].upper() == 'PF': # XXX Uglier code is hard to find...
129 for pf in setting['value'].split("\n"):
131 for field in pf.split(","):
132 (key, val) = field.split("=", 2)
134 if 'new_dport' not in fields:
135 fields['new_dport'] = fields['dport']
136 if 'source' not in fields:
137 fields['source'] = "0.0.0.0/0"
141 def InitInterfaces(plc, data):
142 if not 'networks' in data:
144 plnet.InitInterfaces(logger, plc, data)
146 def start(options, config):