import time from types import StringTypes from collections import defaultdict from sfa.util.sfatime import utcparse, datetime_to_epoch from sfa.util.sfalogging import logger from sfa.util.xrn import Xrn, get_leaf, get_authority, urn_to_hrn from sfa.rspecs.rspec import RSpec from sfa.planetlab.vlink import VLink from sfa.planetlab.topology import Topology from sfa.planetlab.plxrn import PlXrn, hrn_to_pl_slicename, xrn_to_hostname, top_auth, hash_loginbase from sfa.storage.model import SliverAllocation MAXINT = 2L**31-1 class PlSlices: rspec_to_slice_tag = {'max_rate':'net_max_rate'} def __init__(self, driver): self.driver = driver def get_slivers(self, xrn, node=None): hrn, type = urn_to_hrn(xrn) slice_name = hrn_to_pl_slicename(hrn) # XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead # of doing all of this? #return self.driver.shell.GetSliceTicket(self.auth, slice_name) # from PLCAPI.GetSlivers.get_slivers() slice_fields = ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids'] slices = self.driver.shell.GetSlices(slice_name, slice_fields) # Build up list of users and slice attributes person_ids = set() all_slice_tag_ids = set() for slice in slices: person_ids.update(slice['person_ids']) all_slice_tag_ids.update(slice['slice_tag_ids']) person_ids = list(person_ids) all_slice_tag_ids = list(all_slice_tag_ids) # Get user information all_persons_list = self.driver.shell.GetPersons({'person_id':person_ids,'enabled':True}, ['person_id', 'enabled', 'key_ids']) all_persons = {} for person in all_persons_list: all_persons[person['person_id']] = person # Build up list of keys key_ids = set() for person in all_persons.values(): key_ids.update(person['key_ids']) key_ids = list(key_ids) # Get user account keys all_keys_list = self.driver.shell.GetKeys(key_ids, ['key_id', 'key', 'key_type']) all_keys = {} for key in all_keys_list: all_keys[key['key_id']] = key # Get slice attributes all_slice_tags_list = self.driver.shell.GetSliceTags(all_slice_tag_ids) all_slice_tags = {} for slice_tag in all_slice_tags_list: all_slice_tags[slice_tag['slice_tag_id']] = slice_tag slivers = [] for slice in slices: keys = [] for person_id in slice['person_ids']: if person_id in all_persons: person = all_persons[person_id] if not person['enabled']: continue for key_id in person['key_ids']: if key_id in all_keys: key = all_keys[key_id] keys += [{'key_type': key['key_type'], 'key': key['key']}] attributes = [] # All (per-node and global) attributes for this slice slice_tags = [] for slice_tag_id in slice['slice_tag_ids']: if slice_tag_id in all_slice_tags: slice_tags.append(all_slice_tags[slice_tag_id]) # Per-node sliver attributes take precedence over global # slice attributes, so set them first. # Then comes nodegroup slice attributes # Followed by global slice attributes sliver_attributes = [] if node is not None: for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags): sliver_attributes.append(sliver_attribute['tagname']) attributes.append({'tagname': sliver_attribute['tagname'], 'value': sliver_attribute['value']}) # set nodegroup slice attributes for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags): # Do not set any nodegroup slice attributes for # which there is at least one sliver attribute # already set. if slice_tag not in slice_tags: attributes.append({'tagname': slice_tag['tagname'], 'value': slice_tag['value']}) for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags): # Do not set any global slice attributes for # which there is at least one sliver attribute # already set. if slice_tag['tagname'] not in sliver_attributes: attributes.append({'tagname': slice_tag['tagname'], 'value': slice_tag['value']}) # XXX Sanity check; though technically this should be a system invariant # checked with an assertion if slice['expires'] > MAXINT: slice['expires']= MAXINT slivers.append({ 'hrn': hrn, 'name': slice['name'], 'slice_id': slice['slice_id'], 'instantiation': slice['instantiation'], 'expires': slice['expires'], 'keys': keys, 'attributes': attributes }) return slivers def get_sfa_peer(self, xrn): hrn, type = urn_to_hrn(xrn) # return the authority for this hrn or None if we are the authority sfa_peer = None slice_authority = get_authority(hrn) site_authority = get_authority(slice_authority) if site_authority != self.driver.hrn: sfa_peer = site_authority return sfa_peer def verify_slice_leases(self, slice, rspec_requested_leases): leases = self.driver.shell.GetLeases({'name':slice['name'], 'clip':int(time.time())}, ['lease_id','name', 'hostname', 't_from', 't_until']) grain = self.driver.shell.GetLeaseGranularity() requested_leases = [] for lease in rspec_requested_leases: requested_lease = {} slice_hrn, _ = urn_to_hrn(lease['slice_id']) top_auth_hrn = top_auth(slice_hrn) site_hrn = '.'.join(slice_hrn.split('.')[:-1]) slice_part = slice_hrn.split('.')[-1] if top_auth_hrn == self.driver.hrn: login_base = slice_hrn.split('.')[-2][:12] else: login_base = hash_loginbase(site_hrn) slice_name = '_'.join([login_base, slice_part]) if slice_name != slice['name']: continue elif Xrn(lease['component_id']).get_authority_urn().split(':')[0] != self.driver.hrn: continue hostname = xrn_to_hostname(lease['component_id']) # fill the requested node with nitos ids requested_lease['name'] = slice['name'] requested_lease['hostname'] = hostname requested_lease['t_from'] = int(lease['start_time']) requested_lease['t_until'] = int(lease['duration']) * grain + int(lease['start_time']) requested_leases.append(requested_lease) # prepare actual slice leases by lease_id leases_by_id = {} for lease in leases: leases_by_id[lease['lease_id']] = {'name': lease['name'], 'hostname': lease['hostname'], \ 't_from': lease['t_from'], 't_until': lease['t_until']} added_leases = [] kept_leases_id = [] deleted_leases_id = [] for lease_id in leases_by_id: if leases_by_id[lease_id] not in requested_leases: deleted_leases_id.append(lease_id) else: kept_leases_id.append(lease_id) requested_leases.remove(leases_by_id[lease_id]) added_leases = requested_leases try: self.driver.shell.DeleteLeases(deleted_leases_id) for lease in added_leases: self.driver.shell.AddLeases(lease['hostname'], slice['name'], lease['t_from'], lease['t_until']) except: logger.log_exc('Failed to add/remove slice leases') return leases def verify_slice_nodes(self, slice_urn, slice, rspec_nodes): slivers = {} for node in rspec_nodes: hostname = node.get('component_name') client_id = node.get('client_id') component_id = node.get('component_id').strip() if hostname: hostname = hostname.strip() elif component_id: hostname = xrn_to_hostname(component_id) if hostname: slivers[hostname] = {'client_id': client_id, 'component_id': component_id} nodes = self.driver.shell.GetNodes(slice['node_ids'], ['node_id', 'hostname', 'interface_ids']) current_slivers = [node['hostname'] for node in nodes] # remove nodes not in rspec deleted_nodes = list(set(current_slivers).difference(slivers.keys())) # add nodes from rspec added_nodes = list(set(slivers.keys()).difference(current_slivers)) try: self.driver.shell.AddSliceToNodes(slice['name'], added_nodes) self.driver.shell.DeleteSliceFromNodes(slice['name'], deleted_nodes) except: logger.log_exc('Failed to add/remove slice from nodes') slices = self.driver.shell.GetSlices(slice['name'], ['node_ids']) resulting_nodes = self.driver.shell.GetNodes(slices[0]['node_ids']) # update sliver allocations for node in resulting_nodes: client_id = slivers[node['hostname']]['client_id'] component_id = slivers[node['hostname']]['component_id'] sliver_hrn = '%s.%s-%s' % (self.driver.hrn, slice['slice_id'], node['node_id']) sliver_id = Xrn(sliver_hrn, type='sliver').urn record = SliverAllocation(sliver_id=sliver_id, client_id=client_id, component_id=component_id, slice_urn = slice_urn, allocation_state='geni_allocated') record.sync(self.driver.api.dbsession()) return resulting_nodes def free_egre_key(self): used = set() for tag in self.driver.shell.GetSliceTags({'tagname': 'egre_key'}): used.add(int(tag['value'])) for i in range(1, 256): if i not in used: key = i break else: raise KeyError("No more EGRE keys available") return str(key) def verify_slice_links(self, slice, requested_links, nodes): if not requested_links: return # exit if links are not supported here topology = Topology() if not topology: return # build dict of nodes nodes_dict = {} interface_ids = [] for node in nodes: nodes_dict[node['node_id']] = node interface_ids.extend(node['interface_ids']) # build dict of interfaces interfaces = self.driver.shell.GetInterfaces(interface_ids) interfaces_dict = {} for interface in interfaces: interfaces_dict[interface['interface_id']] = interface slice_tags = [] # set egre key slice_tags.append({'name': 'egre_key', 'value': self.free_egre_key()}) # set netns slice_tags.append({'name': 'netns', 'value': '1'}) # set cap_net_admin # need to update the attribute string? slice_tags.append({'name': 'capabilities', 'value': 'CAP_NET_ADMIN'}) for link in requested_links: # get the ip address of the first node in the link ifname1 = Xrn(link['interface1']['component_id']).get_leaf() if ifname1: ifname_parts = ifname1.split(':') node_raw = ifname_parts[0] device = None if len(ifname_parts) > 1: device = ifname_parts[1] node_id = int(node_raw.replace('node', '')) node = nodes_dict[node_id] if1 = interfaces_dict[node['interface_ids'][0]] ipaddr = if1['ip'] topo_rspec = VLink.get_topo_rspec(link, ipaddr) # set topo_rspec tag slice_tags.append({'name': 'topo_rspec', 'value': str([topo_rspec]), 'node_id': node_id}) # set vini_topo tag slice_tags.append({'name': 'vini_topo', 'value': 'manual', 'node_id': node_id}) #self.driver.shell.AddSliceTag(slice['name'], 'topo_rspec', str([topo_rspec]), node_id) self.verify_slice_attributes(slice, slice_tags, {'append': True}, admin=True) def verify_site(self, slice_xrn, slice_record={}, sfa_peer=None, options={}): (slice_hrn, type) = urn_to_hrn(slice_xrn) top_auth_hrn = top_auth(slice_hrn) site_hrn = '.'.join(slice_hrn.split('.')[:-1]) if top_auth_hrn == self.driver.hrn: login_base = slice_hrn.split('.')[-2][:12] else: login_base = hash_loginbase(site_hrn) sites = self.driver.shell.GetSites({'peer_id': None},['site_id','name','abbreviated_name','login_base','hrn']) # filter sites by hrn site_exists = [site for site in sites if site['hrn'] == site_hrn] if not site_exists: # create new site record site = {'name': 'sfa:%s' % site_hrn, 'abbreviated_name': site_hrn, 'login_base': login_base, 'max_slices': 100, 'max_slivers': 1000, 'enabled': True, 'peer_site_id': None} site['site_id'] = self.driver.shell.AddSite(site) # Set site HRN self.driver.shell.SetSiteHrn(int(site['site_id']), site_hrn) # Tag this as created through SFA self.driver.shell.SetSiteSfaCreated(int(site['site_id']), 'True') # exempt federated sites from monitor policies self.driver.shell.AddSiteTag(int(site['site_id']), 'exempt_site_until', "20200101") else: site = site_exists[0] return site def verify_slice(self, slice_hrn, slice_record, sfa_peer, expiration, options={}): top_auth_hrn = top_auth(slice_hrn) site_hrn = '.'.join(slice_hrn.split('.')[:-1]) slice_part = slice_hrn.split('.')[-1] if top_auth_hrn == self.driver.hrn: login_base = slice_hrn.split('.')[-2][:12] else: login_base = hash_loginbase(site_hrn) slice_name = '_'.join([login_base, slice_part]) slices = self.driver.shell.GetSlices({'peer_id': None},['slice_id','name','hrn']) # Filter slices by HRN slice_exists = [slice for slice in slices if slice['hrn'] == slice_hrn] expires = int(datetime_to_epoch(utcparse(expiration))) if not slice_exists: slice = {'name': slice_name, 'url': slice_record.get('url', slice_hrn), 'description': slice_record.get('description', slice_hrn)} # add the slice slice['slice_id'] = self.driver.shell.AddSlice(slice) # set the slice HRN self.driver.shell.SetSliceHrn(int(slice['slice_id']), slice_hrn) # Tag this as created through SFA self.driver.shell.SetSliceSfaCreated(int(slice['slice_id']), 'True') # set the expiration self.driver.shell.UpdateSlice(int(slice['slice_id']), {'expires': expires}) else: slice = slice_exists[0] #Update expiration if necessary if slice.get('expires', None) != expires: self.driver.shell.UpdateSlice( int(slice['slice_id']), {'expires' : expires}) return self.driver.shell.GetSlices(int(slice['slice_id']))[0] def verify_persons(self, slice_hrn, slice_record, users, sfa_peer, options={}): top_auth_hrn = top_auth(slice_hrn) site_hrn = '.'.join(slice_hrn.split('.')[:-1]) slice_part = slice_hrn.split('.')[-1] users_by_hrn = {} for user in users: user['hrn'], _ = urn_to_hrn(user['urn']) users_by_hrn[user['hrn']] = user if top_auth_hrn == self.driver.hrn: login_base = slice_hrn.split('.')[-2][:12] else: login_base = hash_loginbase(site_hrn) slice_name = '_'.join([login_base, slice_part]) persons = self.driver.shell.GetPersons({'peer_id': None},['person_id','email','hrn']) sites = self.driver.shell.GetSites({'peer_id': None}, ['node_ids', 'site_id', 'name', 'person_ids', 'slice_ids', 'login_base', 'hrn']) site = [site for site in sites if site['hrn'] == site_hrn][0] slices = self.driver.shell.GetSlices({'peer_id': None}, ['slice_id', 'node_ids', 'person_ids', 'expires', 'site_id', 'name', 'hrn']) slice = [slice for slice in slices if slice['hrn'] == slice_hrn][0] slice_persons = self.driver.shell.GetPersons({'peer_id': None, 'person_id': slice['person_ids']},['person_id','email','hrn']) persons_by_hrn = {} persons_by_email = {} for person in persons: persons_by_hrn[person['hrn']] = person persons_by_email[person['email']] = person slice_persons_by_hrn = {} for slice_person in slice_persons: slice_persons_by_hrn[slice_person['hrn']] = slice_person # sort persons by HRN persons_to_add = set(users_by_hrn.keys()).difference(slice_persons_by_hrn.keys()) persons_to_delete = set(slice_persons_by_hrn.keys()).difference(users_by_hrn.keys()) persons_to_keep = set(users_by_hrn.keys()).intersection(slice_persons_by_hrn.keys()) persons_to_verify_keys = {} # Add persons or add persons to slice for person_hrn in persons_to_add: person_email = users_by_hrn[person_hrn].get('email', None) if person_email and person_email in persons_by_email.keys(): # check if the user already exist in PL person_id = persons_by_email[person_email]['person_id'] self.driver.shell.AddPersonToSlice(person_id, slice['slice_id']) persons_to_verify_keys[person_id] = users_by_hrn[person_hrn] else: person = { 'first_name': person_hrn, 'last_name': person_hrn, 'email': users_by_hrn[person_hrn].get('email', "%s@geni.net"%person_hrn.split('.')[-1]), } person_id = self.driver.shell.AddPerson(person) self.driver.shell.AddRoleToPerson('user', int(person_id)) # enable the account self.driver.shell.UpdatePerson(int(person_id), {'enabled': True}) self.driver.shell.SetPersonSfaCreated(int(person_id), 'True') self.driver.shell.AddPersonToSite(int(person_id), site['site_id']) self.driver.shell.AddPersonToSlice(int(person_id), slice['slice_id']) self.driver.shell.SetPersonHrn(int(person_id), person_hrn) # Add keys for key in users_by_hrn[person_hrn].get('keys', []): key = {'key':key, 'key_type':'ssh'} self.driver.shell.AddPersonKey(person_id, key) # Delete persons from slice for person_hrn in persons_to_delete: person_id = slice_persons_by_hrn[person_hrn].get('person_id') slice_id = slice['slice_id'] self.driver.shell.DeletePersonFromSlice(person_id, slice_id) # Update kept persons for person_hrn in persons_to_keep: person_id = slice_persons_by_hrn[person_hrn].get('person_id') persons_to_verify_keys[person_id] = users_by_hrn[person_hrn] self.verify_keys(persons_to_verify_keys, options) return persons_to_add def verify_keys(self, persons_to_verify_keys, options={}): # we only add keys that comes from sfa to persons in PL for person_id in persons_to_verify_keys: person_sfa_keys = persons_to_verify_keys[person_id].get('keys', []) person_pl_keys = self.driver.shell.GetKeys({'person_id': int(person_id)}) person_pl_keys_list = [key['key'] for key in person_pl_keys] keys_to_add = set(person_sfa_keys).difference(person_pl_keys_list) for key_string in keys_to_add: key = {'key': key_string, 'key_type': 'ssh'} self.driver.shell.AddPersonKey(int(person_id), key) def verify_slice_attributes(self, slice, requested_slice_attributes, options={}, admin=False): append = options.get('append', True) # get list of attributes users ar able to manage filter = {'category': '*slice*'} if not admin: filter['|roles'] = ['user'] slice_attributes = self.driver.shell.GetTagTypes(filter) valid_slice_attribute_names = [attribute['tagname'] for attribute in slice_attributes] # get sliver attributes added_slice_attributes = [] removed_slice_attributes = [] # we need to keep the slice hrn anyway ignored_slice_attribute_names = ['hrn'] existing_slice_attributes = self.driver.shell.GetSliceTags({'slice_id': slice['slice_id']}) # get attributes that should be removed for slice_tag in existing_slice_attributes: if slice_tag['tagname'] in ignored_slice_attribute_names: # If a slice already has a admin only role it was probably given to them by an # admin, so we should ignore it. ignored_slice_attribute_names.append(slice_tag['tagname']) attribute_found=True else: # If an existing slice attribute was not found in the request it should # be removed attribute_found=False for requested_attribute in requested_slice_attributes: if requested_attribute['name'] == slice_tag['tagname'] and \ requested_attribute['value'] == slice_tag['value']: attribute_found=True break if not attribute_found and not append: removed_slice_attributes.append(slice_tag) # get attributes that should be added: for requested_attribute in requested_slice_attributes: # if the requested attribute wasn't found we should add it if requested_attribute['name'] in valid_slice_attribute_names: attribute_found = False for existing_attribute in existing_slice_attributes: if requested_attribute['name'] == existing_attribute['tagname'] and \ requested_attribute['value'] == existing_attribute['value']: attribute_found=True break if not attribute_found: added_slice_attributes.append(requested_attribute) # remove stale attributes for attribute in removed_slice_attributes: try: self.driver.shell.DeleteSliceTag(attribute['slice_tag_id']) except Exception, e: logger.warn('Failed to remove sliver attribute. name: %s, value: %s, node_id: %s\nCause:%s'\ % (slice['name'], attribute['value'], attribute.get('node_id'), str(e))) # add requested_attributes for attribute in added_slice_attributes: try: self.driver.shell.AddSliceTag(slice['name'], attribute['name'], attribute['value'], attribute.get('node_id', None)) except Exception, e: logger.warn('Failed to add sliver attribute. name: %s, value: %s, node_id: %s\nCause:%s'\ % (slice['name'], attribute['value'], attribute.get('node_id'), str(e)))