4 """network configuration"""
6 # system provided modules
7 import os, string, time, socket
9 # PlanetLab system modules
13 import bwlimit, logger, iptables, tools
15 dev_default = tools.get_default_if()
17 def start(options, conf):
18 logger.log("net: plugin starting up...")
20 def GetSlivers(data, config, plc):
21 logger.verbose("net: GetSlivers called.")
22 if not 'interfaces' in data:
23 logger.log_missing_data('net.GetSlivers','interfaces')
25 plnet.InitInterfaces(logger, plc, data)
26 if 'OVERRIDES' in dir(config):
27 if config.OVERRIDES.get('net_max_rate') == '-1':
28 logger.log("net: Slice and node BW Limits disabled.")
29 if len(bwlimit.tc("class show dev %s" % dev_default)):
30 logger.verbose("net: *** DISABLING NODE BW LIMITS ***")
41 def InitNodeLimit(data):
43 # query running network interfaces
45 ips = dict(zip(devs.values(), devs.keys()))
48 macs[sioc.gifhwaddr(dev).lower()] = dev
50 for interface in data['interfaces']:
51 # Get interface name preferably from MAC address, falling
53 hwaddr=interface['mac']
54 if hwaddr <> None: hwaddr=hwaddr.lower()
56 dev = macs[interface['mac']]
57 elif interface['ip'] in ips:
58 dev = ips[interface['ip']]
60 logger.log('net: %s: no such interface with address %s/%s' % (interface['hostname'], interface['ip'], interface['mac']))
63 # Get current node cap
65 old_bwlimit = bwlimit.get_bwcap(dev)
69 # Get desired node cap
70 if interface['bwlimit'] is None or interface['bwlimit'] < 0:
71 new_bwlimit = bwlimit.bwmax
73 new_bwlimit = interface['bwlimit']
75 if old_bwlimit != new_bwlimit:
76 # Reinitialize bandwidth limits
77 bwlimit.init(dev, new_bwlimit)
79 # XXX This should trigger an rspec refresh in case
80 # some previously invalid sliver bwlimit is now valid
81 # again, or vice-versa.
83 def InitI2(plc, data):
84 if not 'groups' in data: return
86 if "Internet2" in data['groups']:
87 logger.log("net: This is an Internet2 node. Setting rules.")
89 i2nodeids = plc.GetNodeGroups(["Internet2"])[0]['node_ids']
90 for node in plc.GetInterfaces({"node_id": i2nodeids}, ["ip"]):
92 i2nodes.append(node['ip'])
93 # this will create the set if it doesn't already exist
94 # and add IPs that don't exist in the set rather than
95 # just recreateing the set.
96 bwlimit.exempt_init('Internet2', i2nodes)
98 # set the iptables classification rule if it doesnt exist.
99 cmd = '-A POSTROUTING -m set --set Internet2 dst -j CLASSIFY --set-class 0001:2000 --add-mark'
101 ipt = os.popen("/sbin/iptables-save")
102 for line in ipt.readlines(): rules.append(line.strip(" \n"))
105 logger.verbose("net: Adding iptables rule for Internet2")
106 os.popen("/sbin/iptables -t mangle " + cmd)
108 def InitNAT(plc, data):
110 # query running network interfaces
111 devs = sioc.gifconf()
112 ips = dict(zip(devs.values(), devs.keys()))
115 macs[sioc.gifhwaddr(dev).lower()] = dev
117 ipt = iptables.IPTables()
118 for interface in data['interfaces']:
119 # Get interface name preferably from MAC address, falling
120 # back on IP address.
121 hwaddr=interface['mac']
122 if hwaddr <> None: hwaddr=hwaddr.lower()
124 dev = macs[interface['mac']]
125 elif interface['ip'] in ips:
126 dev = ips[interface['ip']]
128 logger.log('net: %s: no such interface with address %s/%s' % (interface['hostname'], interface['ip'], interface['mac']))
132 settings = plc.GetInterfaceTags({'interface_tag_id': interface['interface_tag_ids']})
136 for setting in settings:
137 if setting['category'].upper() != 'FIREWALL':
139 if setting['name'].upper() == 'EXTERNAL':
140 # Enable NAT for this interface
142 elif setting['name'].upper() == 'INTERNAL':
144 elif setting['name'].upper() == 'PF': # XXX Uglier code is hard to find...
145 for pf in setting['value'].split("\n"):
147 for field in pf.split(","):
148 (key, val) = field.split("=", 2)
150 if 'new_dport' not in fields:
151 fields['new_dport'] = fields['dport']
152 if 'source' not in fields:
153 fields['source'] = "0.0.0.0/0"
157 def start(options, config):