2 # vsys_vnet_admin.py - basic command-line client to show assigned network
3 # segments to the vsys_vnet tag in PlanetLab, and to assign new vsys_vnet tags
4 # using available segments
6 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
10 from optparse import OptionParser
17 """ Returns a XMLRPC proxy to the PLAPI service on the given url """
18 return xmlrpclib.ServerProxy(url, allow_none = True)
20 def get_assigned(plapi, auth):
21 """ Returns a dictionary with the assigned network segments as key
22 and the slice name as value"""
23 info = plapi.GetSliceTags(auth, {'tagname': 'vsys_vnet'}, ('name', 'value'))
24 return dict((d['value'], d['name']) for d in info)
26 def get_next_available(assigned, base, prefix):
27 """ Returns the next available network segment to be assigned to a
29 net = ipaddr.IPNetwork(base)
30 iter_sub = net.iter_subnets(new_prefix=prefix)
37 if not [ s for s in map(ipaddr.IPNetwork, assigned.keys()) \
38 if sub == s or s in sub or sub in s]:
45 def assign_vsys_vent(plapi, auth, vsys_vnet, pl_slice):
46 return plapi.AddSliceTag(auth, pl_slice, 'vsys_vnet', vsys_vnet)
48 if __name__ == "__main__":
49 pl_user = os.environ.get('PL_USER')
50 pl_pwd = os.environ.get('PL_PASS')
51 pl_url = "https://www.planet-lab.eu:443/PLCAPI/"
52 pl_slice = os.environ.get('PL_SLICE')
54 usage = "usage: %prog -u <user> -p <password> -l <url> --show --assign -b <base_address> -n <prefix>"
55 parser = OptionParser(usage=usage)
56 parser.add_option("-u", "--user", dest="pl_user", help="PlanetLab account user name", default=pl_user)
57 parser.add_option("-p", "--password", dest="pl_pwd", help="PlanetLab account password", default=pl_pwd)
58 parser.add_option("-l", "--url", dest="pl_url", help="PlanetLab XMLRPC url", default=pl_url)
59 parser.add_option("-b", "--base", dest="basenet", help="Base network address to perform assignment (defaults to 10.0.0.0/8)", default="10.0.0.0/8")
60 parser.add_option("-n", "--prefix", dest="prefix", help="Network prefix for segments (defaults to 21)", default = "21")
61 parser.add_option("-s", "--show", action="store_false", dest="show", default=True,
62 help="Show all assigned vsys_vnet tags")
63 parser.add_option("-a", "--assign", action="store_true", dest="assign", default=False,
64 help="Assign next available network segment as a vsys_vnet tag to the user slice")
66 (options, args) = parser.parse_args()
68 if not options.pl_user or not options.pl_pwd:
69 print "Error: PlanetLab user and password are required to proceed."
72 api = plapi(options.pl_url)
74 auth = dict(AuthMethod='password', Username=options.pl_user, AuthString=options.pl_pwd)
75 assigned = get_assigned(api, auth)
78 vsys_vnet = get_next_available(assigned, options.basenet, int(options.prefix))
80 print "Error: There are no available network segments at the moment to assign"
83 print "The next available network segment is %s." % vsys_vnet
84 proceed = raw_input ("Do you wish to proceed with the assignment of the vsys_vnet tag? [y/N] ")
85 if proceed.lower() in ['yes', 'y']:
87 pl_slice = raw_input ("Please, enter your slice name \n")
89 if pl_slice in assigned.values():
90 print "Error: This slice already has a tag vsys_vnet assigned!!!"
93 slice_tag_id = assign_vsys_vent(api, auth, vsys_vnet, pl_slice)
95 if slice_tag_id and slice_tag_id > 0:
96 print "Success: the new slice tag id is %d" % slice_tag_id
98 print "Error: Something wrong happened!"
101 pp = pprint.PrettyPrinter(indent=4)