sfa/managers/registry_manager.py

   1 import types
   2 # for get_key_from_incoming_ip
   3 import tempfile
   4 import os
   5 import commands
   6
   7 from sfa.util.faults import RecordNotFound, AccountNotEnabled, PermissionError, MissingAuthority, \
   8     UnknownSfaType, ExistingRecord, NonExistingRecord
   9 from sfa.util.sfatime import utcparse, datetime_to_epoch
  10 from sfa.util.prefixTree import prefixTree
  11 from sfa.util.xrn import Xrn, get_authority, hrn_to_urn, urn_to_hrn
  12 from sfa.util.version import version_core
  13 from sfa.util.sfalogging import logger
  14
  15 from sfa.util.printable import printable
  16
  17 from sfa.trust.gid import GID
  18 from sfa.trust.credential import Credential
  19 from sfa.trust.certificate import Certificate, Keypair, convert_public_key
  20 from sfa.trust.gid import create_uuid
  21
  22 from sfa.storage.model import make_record, RegRecord, RegAuthority, RegUser, RegSlice, RegKey, \
  23     augment_with_sfa_builtins
  24 ### the types that we need to exclude from sqlobjects before being able to dump
  25 # them on the xmlrpc wire
  26 from sqlalchemy.orm.collections import InstrumentedList
  27
  28 ### historical note -- april 2014
  29 # the myslice chaps rightfully complained about the following discrepancy
  30 # they found that
  31 # * read operations (resolve) expose stuff like e.g.
  32 #   'reg-researchers', or 'reg-pis', but that
  33 # * write operations (register, update) need e.g.
  34 #   'researcher' or 'pi' to be set - reg-* are just ignored
  35 #
  36 # the 'normalize' helper functions below aim at ironing this out
  37 # however in order to break as few code as possible we essentially make sure that *both* fields are set
  38 # upon entering the write methods (so again register and update) for legacy, as some driver code
  39 # might depend on the presence of, say, 'researcher'
  40
  41 # normalize an input record to a write method - register or update
  42 # e.g. registry calls this 'reg-researchers'
  43 # while some drivers call this 'researcher'
  44 # we need to make sure that both keys appear and are the same
  45 def _normalize_input (record, reg_key, driver_key):
  46     # this looks right, use this for both keys
  47     if reg_key in record:
  48         # and issue a warning if they were both set and different
  49         # as we're overwriting some user data here
  50         if driver_key in record:
  51             logger.warning ("normalize_input_researcher: incoming record has both values, using reg-researchers")
  52         record[driver_key]=record[reg_key]
  53     # we only have one key set, duplicate for the other one
  54     elif driver_key in record:
  55         logger.warning ("normalize_input_researcher: you should use '%s' instead ot '%s'"%(reg_key,driver_key))
  56         record[reg_key]=record[driver_key]
  57
  58 def normalize_input_record (record):
  59     _normalize_input (record, 'reg-researchers','researcher')
  60     return record
  61
  62 class RegistryManager:
  63
  64     def __init__ (self, config):
  65         logger.info("Creating RegistryManager[%s]"%id(self))
  66
  67     # The GENI GetVersion call
  68     def GetVersion(self, api, options):
  69         peers = dict ( [ (hrn,interface.get_url()) for (hrn,interface) in api.registries.iteritems()
  70                        if hrn != api.hrn])
  71         xrn=Xrn(api.hrn,type='authority')
  72         return version_core({'interface':'registry',
  73                              'sfa': 2,
  74                              'geni_api': 2,
  75                              'hrn':xrn.get_hrn(),
  76                              'urn':xrn.get_urn(),
  77                              'peers':peers})
  78
  79     def GetCredential(self, api, xrn, input_type, caller_xrn=None):
  80         # convert xrn to hrn
  81         if input_type:
  82             hrn, _ = urn_to_hrn(xrn)
  83             type = input_type
  84         else:
  85             hrn, type = urn_to_hrn(xrn)
  86
  87         # Slivers don't have credentials but users should be able to
  88         # specify a sliver xrn and receive the slice's credential
  89         # However if input_type is specified
  90         if type == 'sliver' or ( not input_type and '-' in Xrn(hrn).leaf):
  91             slice_xrn = api.driver.sliver_to_slice_xrn(hrn)
  92             hrn = slice_xrn.hrn
  93
  94         # Is this a root or sub authority
  95         auth_hrn = api.auth.get_authority(hrn)
  96         if not auth_hrn or hrn == api.config.SFA_INTERFACE_HRN:
  97             auth_hrn = hrn
  98         auth_info = api.auth.get_auth_info(auth_hrn)
  99
 100         # get record info
 101         dbsession = api.dbsession()
 102         record=dbsession.query(RegRecord).filter_by(type=type,hrn=hrn).first()
 103         if not record:
 104             raise RecordNotFound("hrn=%s, type=%s"%(hrn,type))
 105
 106         # get the callers gid
 107         # if caller_xrn is not specified assume the caller is the record
 108         # object itself.
 109         if not caller_xrn:
 110             caller_hrn = hrn
 111             caller_gid = record.get_gid_object()
 112         else:
 113             caller_hrn, caller_type = urn_to_hrn(caller_xrn)
 114             if caller_type:
 115                 caller_record = dbsession.query(RegRecord).filter_by(hrn=caller_hrn,type=caller_type).first()
 116             else:
 117                 caller_record = dbsession.query(RegRecord).filter_by(hrn=caller_hrn).first()
 118             if not caller_record:
 119                 raise RecordNotFound("Unable to associated caller (hrn=%s, type=%s) with credential for (hrn: %s, type: %s)"%(caller_hrn, caller_type, hrn, type))
 120             caller_gid = GID(string=caller_record.gid)
 121
 122         object_hrn = record.get_gid_object().get_hrn()
 123         # call the builtin authorization/credential generation engine
 124         rights = api.auth.determine_user_rights(caller_hrn, record)
 125         # make sure caller has rights to this object
 126         if rights.is_empty():
 127             raise PermissionError("%s has no rights to %s (%s)" % \
 128                                   (caller_hrn, object_hrn, xrn))
 129         object_gid = GID(string=record.gid)
 130         new_cred = Credential(subject = object_gid.get_subject())
 131         new_cred.set_gid_caller(caller_gid)
 132         new_cred.set_gid_object(object_gid)
 133         new_cred.set_issuer_keys(auth_info.get_privkey_filename(), auth_info.get_gid_filename())
 134         #new_cred.set_pubkey(object_gid.get_pubkey())
 135         new_cred.set_privileges(rights)
 136         new_cred.get_privileges().delegate_all_privileges(True)
 137         if hasattr(record,'expires'):
 138             date = utcparse(record.expires)
 139             expires = datetime_to_epoch(date)
 140             new_cred.set_expiration(int(expires))
 141         auth_kind = "authority,ma,sa"
 142         # Parent not necessary, verify with certs
 143         #new_cred.set_parent(api.auth.hierarchy.get_auth_cred(auth_hrn, kind=auth_kind))
 144         new_cred.encode()
 145         new_cred.sign()
 146
 147         return new_cred.save_to_string(save_parents=True)
 148
 149
 150     # the default for full, which means 'dig into the testbed as well', should be false
 151     def Resolve(self, api, xrns, type=None, details=False):
 152
 153         dbsession = api.dbsession()
 154         if not isinstance(xrns, types.ListType):
 155             # try to infer type if not set and we get a single input
 156             if not type:
 157                 type = Xrn(xrns).get_type()
 158             xrns = [xrns]
 159         hrns = [urn_to_hrn(xrn)[0] for xrn in xrns]
 160
 161         # load all known registry names into a prefix tree and attempt to find
 162         # the longest matching prefix
 163         # create a dict where key is a registry hrn and its value is a list
 164         # of hrns at that registry (determined by the known prefix tree).
 165         xrn_dict = {}
 166         registries = api.registries
 167         tree = prefixTree()
 168         registry_hrns = registries.keys()
 169         tree.load(registry_hrns)
 170         for xrn in xrns:
 171             registry_hrn = tree.best_match(urn_to_hrn(xrn)[0])
 172             if registry_hrn not in xrn_dict:
 173                 xrn_dict[registry_hrn] = []
 174             xrn_dict[registry_hrn].append(xrn)
 175
 176         records = []
 177         for registry_hrn in xrn_dict:
 178             # skip the hrn without a registry hrn
 179             # XX should we let the user know the authority is unknown?
 180             if not registry_hrn:
 181                 continue
 182
 183             # if the best match (longest matching hrn) is not the local registry,
 184             # forward the request
 185             xrns = xrn_dict[registry_hrn]
 186             if registry_hrn != api.hrn:
 187                 credential = api.getCredential()
 188                 interface = api.registries[registry_hrn]
 189                 server_proxy = api.server_proxy(interface, credential)
 190                 # should propagate the details flag but that's not supported in the xmlrpc interface yet
 191                 #peer_records = server_proxy.Resolve(xrns, credential,type, details=details)
 192                 peer_records = server_proxy.Resolve(xrns, credential)
 193                 # pass foreign records as-is
 194                 # previous code used to read
 195                 # records.extend([SfaRecord(dict=record).as_dict() for record in peer_records])
 196                 # not sure why the records coming through xmlrpc had to be processed at all
 197                 records.extend(peer_records)
 198
 199         # try resolving the remaining unfound records at the local registry
 200         local_hrns = list ( set(hrns).difference([record['hrn'] for record in records]) )
 201         #
 202         local_records = dbsession.query(RegRecord).filter(RegRecord.hrn.in_(local_hrns))
 203         if type:
 204             local_records = local_records.filter_by(type=type)
 205         local_records=local_records.all()
 206
 207         for local_record in local_records:
 208             augment_with_sfa_builtins (local_record)
 209
 210         logger.info("Resolve, (details=%s,type=%s) local_records=%s "%(details,type,local_records))
 211         local_dicts = [ record.__dict__ for record in local_records ]
 212
 213         if details:
 214             # in details mode we get as much info as we can, which involves contacting the
 215             # testbed for getting implementation details about the record
 216             api.driver.augment_records_with_testbed_info(local_dicts)
 217             # also we fill the 'url' field for known authorities
 218             # used to be in the driver code, sounds like a poorman thing though
 219             def solve_neighbour_url (record):
 220                 if not record.type.startswith('authority'): return
 221                 hrn=record.hrn
 222                 for neighbour_dict in [ api.aggregates, api.registries ]:
 223                     if hrn in neighbour_dict:
 224                         record.url=neighbour_dict[hrn].get_url()
 225                         return
 226             for record in local_records: solve_neighbour_url (record)
 227
 228         # convert local record objects to dicts for xmlrpc
 229         # xxx somehow here calling dict(record) issues a weird error
 230         # however record.todict() seems to work fine
 231         # records.extend( [ dict(record) for record in local_records ] )
 232         records.extend( [ record.todict(exclude_types=[InstrumentedList]) for record in local_records ] )
 233
 234         if not records:
 235             raise RecordNotFound(str(hrns))
 236
 237         return records
 238
 239     def List (self, api, xrn, origin_hrn=None, options={}):
 240         dbsession=api.dbsession()
 241         # load all know registry names into a prefix tree and attempt to find
 242         # the longest matching prefix
 243         hrn, type = urn_to_hrn(xrn)
 244         registries = api.registries
 245         registry_hrns = registries.keys()
 246         tree = prefixTree()
 247         tree.load(registry_hrns)
 248         registry_hrn = tree.best_match(hrn)
 249
 250         #if there was no match then this record belongs to an unknow registry
 251         if not registry_hrn:
 252             raise MissingAuthority(xrn)
 253         # if the best match (longest matching hrn) is not the local registry,
 254         # forward the request
 255         record_dicts = []
 256         if registry_hrn != api.hrn:
 257             credential = api.getCredential()
 258             interface = api.registries[registry_hrn]
 259             server_proxy = api.server_proxy(interface, credential)
 260             record_list = server_proxy.List(xrn, credential, options)
 261             # same as above, no need to process what comes from through xmlrpc
 262             # pass foreign records as-is
 263             record_dicts = record_list
 264
 265         # if we still have not found the record yet, try the local registry
 266 #        logger.debug("before trying local records, %d foreign records"% len(record_dicts))
 267         if not record_dicts:
 268             recursive = False
 269             if ('recursive' in options and options['recursive']):
 270                 recursive = True
 271             elif hrn.endswith('*'):
 272                 hrn = hrn[:-1]
 273                 recursive = True
 274
 275             if not api.auth.hierarchy.auth_exists(hrn):
 276                 raise MissingAuthority(hrn)
 277             if recursive:
 278                 records = dbsession.query(RegRecord).filter(RegRecord.hrn.startswith(hrn)).all()
 279 #                logger.debug("recursive mode, found %d local records"%(len(records)))
 280             else:
 281                 records = dbsession.query(RegRecord).filter_by(authority=hrn).all()
 282 #                logger.debug("non recursive mode, found %d local records"%(len(records)))
 283             # so that sfi list can show more than plain names...
 284             for record in records: augment_with_sfa_builtins (record)
 285             record_dicts=[ record.todict(exclude_types=[InstrumentedList]) for record in records ]
 286
 287         return record_dicts
 288
 289
 290     def CreateGid(self, api, xrn, cert):
 291         # get the authority
 292         authority = Xrn(xrn=xrn).get_authority_hrn()
 293         auth_info = api.auth.get_auth_info(authority)
 294         if not cert:
 295             pkey = Keypair(create=True)
 296         else:
 297             certificate = Certificate(string=cert)
 298             pkey = certificate.get_pubkey()
 299         gid = api.auth.hierarchy.create_gid(xrn, create_uuid(), pkey)
 300         return gid.save_to_string(save_parents=True)
 301
 302     ####################
 303     # utility for handling relationships among the SFA objects
 304
 305     # subject_record describes the subject of the relationships
 306     # ref_record contains the target values for the various relationships we need to manage
 307     # (to begin with, this is just the slice x person (researcher) and authority x person (pi) relationships)
 308     def update_driver_relations (self, api, subject_obj, ref_obj):
 309         type=subject_obj.type
 310         #for (k,v) in subject_obj.__dict__.items(): print k,'=',v
 311         if type=='slice' and hasattr(ref_obj,'researcher'):
 312             self.update_driver_relation(api, subject_obj, ref_obj.researcher, 'user', 'researcher')
 313         elif type=='authority' and hasattr(ref_obj,'pi'):
 314             self.update_driver_relation(api, subject_obj,ref_obj.pi, 'user', 'pi')
 315
 316     # field_key is the name of one field in the record, typically 'researcher' for a 'slice' record
 317     # hrns is the list of hrns that should be linked to the subject from now on
 318     # target_type would be e.g. 'user' in the 'slice' x 'researcher' example
 319     def update_driver_relation (self, api, record_obj, hrns, target_type, relation_name):
 320         dbsession=api.dbsession()
 321         # locate the linked objects in our db
 322         subject_type=record_obj.type
 323         subject_id=record_obj.pointer
 324         # get the 'pointer' field of all matching records
 325         link_id_tuples = dbsession.query(RegRecord.pointer).filter_by(type=target_type).filter(RegRecord.hrn.in_(hrns)).all()
 326         # sqlalchemy returns named tuples for columns
 327         link_ids = [ tuple.pointer for tuple in link_id_tuples ]
 328         api.driver.update_relation (subject_type, target_type, relation_name, subject_id, link_ids)
 329
 330     def Register(self, api, record_dict):
 331
 332         logger.debug("Register: entering with record_dict=%s"%printable(record_dict))
 333         normalize_input_record (record_dict)
 334         logger.debug("Register: normalized record_dict=%s"%printable(record_dict))
 335
 336         dbsession=api.dbsession()
 337         hrn, type = record_dict['hrn'], record_dict['type']
 338         urn = hrn_to_urn(hrn,type)
 339         # validate the type
 340         if type not in ['authority', 'slice', 'node', 'user']:
 341             raise UnknownSfaType(type)
 342
 343         # check if record_dict already exists
 344         existing_records = dbsession.query(RegRecord).filter_by(type=type,hrn=hrn).all()
 345         if existing_records:
 346             raise ExistingRecord(hrn)
 347
 348         assert ('type' in record_dict)
 349         # returns the right type of RegRecord according to type in record
 350         record = make_record(dict=record_dict)
 351         record.just_created()
 352         record.authority = get_authority(record.hrn)
 353         auth_info = api.auth.get_auth_info(record.authority)
 354         pub_key = None
 355         # make sure record has a gid
 356         if not record.gid:
 357             uuid = create_uuid()
 358             pkey = Keypair(create=True)
 359             if getattr(record,'keys',None):
 360                 pub_key=record.keys
 361                 # use only first key in record
 362                 if isinstance(record.keys, types.ListType):
 363                     pub_key = record.keys[0]
 364                 pkey = convert_public_key(pub_key)
 365
 366             gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey)
 367             gid = gid_object.save_to_string(save_parents=True)
 368             record.gid = gid
 369
 370         if isinstance (record, RegAuthority):
 371             # update the tree
 372             if not api.auth.hierarchy.auth_exists(hrn):
 373                 api.auth.hierarchy.create_auth(hrn_to_urn(hrn,'authority'))
 374
 375             # get the GID from the newly created authority
 376             auth_info = api.auth.get_auth_info(hrn)
 377             gid = auth_info.get_gid_object()
 378             record.gid=gid.save_to_string(save_parents=True)
 379
 380             # locate objects for relationships
 381             pi_hrns = getattr(record,'pi',None)
 382             if pi_hrns is not None: record.update_pis (pi_hrns, dbsession)
 383
 384         elif isinstance (record, RegSlice):
 385             researcher_hrns = getattr(record,'reg-researchers',None)
 386             if researcher_hrns is not None: record.update_researchers (researcher_hrns, dbsession)
 387
 388         elif isinstance (record, RegUser):
 389             # create RegKey objects for incoming keys
 390             if hasattr(record,'keys'):
 391                 logger.debug ("creating %d keys for user %s"%(len(record.keys),record.hrn))
 392                 record.reg_keys = [ RegKey (key) for key in record.keys ]
 393
 394         # update testbed-specific data if needed
 395         pointer = api.driver.register (record.__dict__, hrn, pub_key)
 396
 397         record.pointer=pointer
 398         dbsession.add(record)
 399         dbsession.commit()
 400
 401         # update membership for researchers, pis, owners, operators
 402         self.update_driver_relations (api, record, record)
 403
 404         return record.get_gid_object().save_to_string(save_parents=True)
 405
 406     def Update(self, api, record_dict):
 407
 408         logger.debug("Update: entering with record_dict=%s"%printable(record_dict))
 409         normalize_input_record (record_dict)
 410         logger.debug("Update: normalized record_dict=%s"%printable(record_dict))
 411
 412         dbsession=api.dbsession()
 413         assert ('type' in record_dict)
 414         new_record=make_record(dict=record_dict)
 415         (type,hrn) = (new_record.type, new_record.hrn)
 416
 417         # make sure the record exists
 418         record = dbsession.query(RegRecord).filter_by(type=type,hrn=hrn).first()
 419         if not record:
 420             raise RecordNotFound("hrn=%s, type=%s"%(hrn,type))
 421         record.just_updated()
 422
 423         # Use the pointer from the existing record, not the one that the user
 424         # gave us. This prevents the user from inserting a forged pointer
 425         pointer = record.pointer
 426
 427         # is there a change in keys ?
 428         new_key=None
 429         if type=='user':
 430             if getattr(new_record,'keys',None):
 431                 new_key=new_record.keys
 432                 if isinstance (new_key,types.ListType):
 433                     new_key=new_key[0]
 434
 435         # take new_key into account
 436         if new_key:
 437             # update the openssl key and gid
 438             pkey = convert_public_key(new_key)
 439             uuid = create_uuid()
 440             urn = hrn_to_urn(hrn,type)
 441             gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey)
 442             gid = gid_object.save_to_string(save_parents=True)
 443
 444         # xxx should do side effects from new_record to record
 445         # not too sure how to do that
 446         # not too big a deal with planetlab as the driver is authoritative, but...
 447
 448         # update native relations
 449         if isinstance (record, RegSlice):
 450             researcher_hrns = getattr(new_record,'reg-researchers',None)
 451             if researcher_hrns is not None: record.update_researchers (researcher_hrns, dbsession)
 452
 453         elif isinstance (record, RegAuthority):
 454             pi_hrns = getattr(new_record,'pi',None)
 455             if pi_hrns is not None: record.update_pis (pi_hrns, dbsession)
 456
 457         # update the PLC information that was specified with the record
 458         # xxx oddly enough, without this useless statement,
 459         # record.__dict__ as received by the driver seems to be off
 460         # anyway the driver should receive an object
 461         # (and then extract __dict__ itself if needed)
 462         print "DO NOT REMOVE ME before driver.update, record=%s"%record
 463         new_key_pointer = -1
 464         try:
 465            (pointer, new_key_pointer) = api.driver.update (record.__dict__, new_record.__dict__, hrn, new_key)
 466         except:
 467            pass
 468         if new_key and new_key_pointer:
 469             record.reg_keys=[ RegKey (new_key, new_key_pointer)]
 470             record.gid = gid
 471
 472         dbsession.commit()
 473         # update membership for researchers, pis, owners, operators
 474         self.update_driver_relations (api, record, new_record)
 475
 476         return 1
 477
 478     # expecting an Xrn instance
 479     def Remove(self, api, xrn, origin_hrn=None):
 480         dbsession=api.dbsession()
 481         hrn=xrn.get_hrn()
 482         type=xrn.get_type()
 483         request=dbsession.query(RegRecord).filter_by(hrn=hrn)
 484         if type and type not in ['all', '*']:
 485             request=request.filter_by(type=type)
 486
 487         record = request.first()
 488         if not record:
 489             msg="Could not find hrn %s"%hrn
 490             if type: msg += " type=%s"%type
 491             raise RecordNotFound(msg)
 492
 493         type = record.type
 494         if type not in ['slice', 'user', 'node', 'authority'] :
 495             raise UnknownSfaType(type)
 496
 497         credential = api.getCredential()
 498         registries = api.registries
 499
 500         # Try to remove the object from the PLCDB of federated agg.
 501         # This is attempted before removing the object from the local agg's PLCDB and sfa table
 502         if hrn.startswith(api.hrn) and type in ['user', 'slice', 'authority']:
 503             for registry in registries:
 504                 if registry not in [api.hrn]:
 505                     try:
 506                         result=registries[registry].remove_peer_object(credential, record, origin_hrn)
 507                     except:
 508                         pass
 509
 510         # call testbed callback first
 511         # IIUC this is done on the local testbed TOO because of the refreshpeer link
 512         if not api.driver.remove(record.__dict__):
 513             logger.warning("driver.remove failed")
 514
 515         # delete from sfa db
 516         dbsession.delete(record)
 517         dbsession.commit()
 518
 519         return 1
 520
 521     # This is a PLC-specific thing, won't work with other platforms
 522     def get_key_from_incoming_ip (self, api):
 523         dbsession=api.dbsession()
 524         # verify that the callers's ip address exist in the db and is an interface
 525         # for a node in the db
 526         (ip, port) = api.remote_addr
 527         interfaces = api.driver.shell.GetInterfaces({'ip': ip}, ['node_id'])
 528         if not interfaces:
 529             raise NonExistingRecord("no such ip %(ip)s" % locals())
 530         nodes = api.driver.shell.GetNodes([interfaces[0]['node_id']], ['node_id', 'hostname'])
 531         if not nodes:
 532             raise NonExistingRecord("no such node using ip %(ip)s" % locals())
 533         node = nodes[0]
 534
 535         # look up the sfa record
 536         record=dbsession.query(RegRecord).filter_by(type='node',pointer=node['node_id']).first()
 537         if not record:
 538             raise RecordNotFound("node with pointer %s"%node['node_id'])
 539
 540         # generate a new keypair and gid
 541         uuid = create_uuid()
 542         pkey = Keypair(create=True)
 543         urn = hrn_to_urn(record.hrn, record.type)
 544         gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey)
 545         gid = gid_object.save_to_string(save_parents=True)
 546         record.gid = gid
 547
 548         # update the record
 549         dbsession.commit()
 550
 551         # attempt the scp the key
 552         # and gid onto the node
 553         # this will only work for planetlab based components
 554         (kfd, key_filename) = tempfile.mkstemp()
 555         (gfd, gid_filename) = tempfile.mkstemp()
 556         pkey.save_to_file(key_filename)
 557         gid_object.save_to_file(gid_filename, save_parents=True)
 558         host = node['hostname']
 559         key_dest="/etc/sfa/node.key"
 560         gid_dest="/etc/sfa/node.gid"
 561         scp = "/usr/bin/scp"
 562         #identity = "/etc/planetlab/root_ssh_key.rsa"
 563         identity = "/etc/sfa/root_ssh_key"
 564         scp_options=" -i %(identity)s " % locals()
 565         scp_options+="-o StrictHostKeyChecking=no " % locals()
 566         scp_key_command="%(scp)s %(scp_options)s %(key_filename)s root@%(host)s:%(key_dest)s" %\
 567                          locals()
 568         scp_gid_command="%(scp)s %(scp_options)s %(gid_filename)s root@%(host)s:%(gid_dest)s" %\
 569                          locals()
 570
 571         all_commands = [scp_key_command, scp_gid_command]
 572
 573         for command in all_commands:
 574             (status, output) = commands.getstatusoutput(command)
 575             if status:
 576                 raise Exception, output
 577
 578         for filename in [key_filename, gid_filename]:
 579             os.unlink(filename)
 580
 581         return 1