def test_010_reg_agent_post(self): """Test registrar's POST /v2/agents/{UUID} Interface""" global keyblob, aik, vtpm, ek # Change CWD for TPM-related operations cwd = os.getcwd() common.ch_dir(common.WORK_DIR, None) secdir = secure_mount.mount() # Initialize the TPM with AIK (ek, ekcert, aik, ek_tpm, aik_name) = tpm.tpm_init(self_activate=False, config_pw=config.get('cloud_agent', 'tpm_ownerpassword')) vtpm = tpm.is_vtpm() # Seed RNG (root only) if common.REQUIRE_ROOT: tpm.init_system_rand() # Handle virtualized and emulated TPMs if ekcert is None: if vtpm: ekcert = 'virtual' elif tpm.is_emulator(): ekcert = 'emulator' # Get back to our original CWD common.ch_dir(cwd, None) data = { 'ek': ek, 'ekcert': ekcert, 'aik': aik, 'aik_name': aik_name, 'ek_tpm': ek_tpm, 'tpm_version': tpm.get_tpm_version(), } v_json_message = json.dumps(data) params = f"/v{self.api_version}/agents/{tenant_templ.agent_uuid}" response = httpclient_requests.request( "POST", "%s" % tenant_templ.registrar_ip, tenant_templ.registrar_boot_port, params=params, data=v_json_message, context=None) self.assertEqual(response.status, 200, "Non-successful Registrar agent Add return code!") json_response = json.loads(response.read().decode()) # Ensure response is well-formed self.assertIn("results", json_response, "Malformed response body!") self.assertIn("blob", json_response["results"], "Malformed response body!") keyblob = json_response["results"]["blob"] self.assertIsNotNone(keyblob, "Malformed response body!")
def cmd_init(workingdir): cwd = os.getcwd() try: common.ch_dir(workingdir,logger) rmfiles("*.pem") rmfiles("*.crt") rmfiles("*.zip") rmfiles("*.der") rmfiles("private.yml") if common.CA_IMPL=='cfssl': pk_str, cacert, ca_pk, _ = ca_impl.mk_cacert() elif common.CA_IMPL=='openssl': cacert, ca_pk, _ = ca_impl.mk_cacert() else: raise Exception("Unknown CA implementation: %s"%common.CA_IMPL) priv=read_private() # write out keys with open('cacert.crt', 'wb') as f: f.write(cacert.as_pem()) f = BIO.MemoryBuffer() ca_pk.save_key_bio(f,None) priv[0]['ca']=f.getvalue() f.close() # store the last serial number created. # the CA is always serial # 1 priv[0]['lastserial'] = 1 write_private(priv) ca_pk.get_rsa().save_pub_key('ca-public.pem') # generate an empty crl if common.CA_IMPL=='cfssl': crl = ca_impl.gencrl([],cacert.as_pem(), pk_str) elif common.CA_IMPL=='openssl': crl = ca_impl.gencrl([],cacert.as_pem(),str(priv[0]['ca'])) else: raise Exception("Unknown CA implementation: %s"%common.CA_IMPL) if isinstance(crl, str): crl = crl.encode('utf-8') with open('cacrl.der','wb') as f: f.write(crl) convert_crl_to_pem("cacrl.der","cacrl.pem") # Sanity checks... cac = X509.load_cert('cacert.crt') if cac.verify(): logger.info("CA certificate created successfully in %s"%workingdir) else: logger.error("ERROR: Cert does not self validate") finally: os.chdir(cwd)
def cmd_mkcert(workingdir, name): cwd = os.getcwd() try: common.ch_dir(workingdir, logger) priv = read_private() cacert = X509.load_cert('cacert.crt') ca_pk = EVP.load_key_string(priv[0]['ca']) cert, pk = ca_impl.mk_signed_cert(cacert, ca_pk, name, priv[0]['lastserial'] + 1) with open('%s-cert.crt' % name, 'wb') as f: f.write(cert.as_pem()) f = BIO.MemoryBuffer() pk.save_key_bio(f, None) priv[0][name] = f.getvalue() f.close() #increment serial number after successful creation priv[0]['lastserial'] += 1 write_private(priv) # write out the private key with password with os.fdopen( os.open("%s-private.pem" % name, os.O_WRONLY | os.O_CREAT, 0o600), 'wb') as f: biofile = BIO.File(f) pk.save_key_bio(biofile, 'aes_256_cbc', globalcb) biofile.close() pk.get_rsa().save_pub_key('%s-public.pem' % name) cc = X509.load_cert('%s-cert.crt' % name) if cc.verify(cacert.get_pubkey()): logger.info("Created certificate for name %s successfully in %s" % (name, workingdir)) else: logger.error("ERROR: Cert does not validate against CA") finally: os.chdir(cwd)
def cmd_revoke(workingdir, name=None, serial=None): cwd = os.getcwd() try: common.ch_dir(workingdir, logger) priv = read_private() if name is not None and serial is not None: raise Exception( "You may not specify a cert and a serial at the same time") if name is None and serial is None: raise Exception("You must specify a cert or a serial to revoke") if name is not None: # load up the cert cert = X509.load_cert("%s-cert.crt" % name) serial = cert.get_serial_number() #convert serial to string serial = str(serial) # get the ca key cert and keys as strings with open('cacert.crt', 'r') as f: cacert = f.read() ca_pk = priv[0]['ca'].decode('utf-8') if serial not in priv[0]['revoked_keys']: priv[0]['revoked_keys'].append(serial) crl = ca_impl.gencrl(priv[0]['revoked_keys'], cacert, ca_pk) write_private(priv) # write out the CRL to the disk with open('cacrl.der', 'wb') as f: f.write(crl) convert_crl_to_pem("cacrl.der", "cacrl.pem") finally: os.chdir(cwd) return crl
def cmd_regencrl(workingdir): cwd = os.getcwd() try: common.ch_dir(workingdir,logger) priv = read_private() # get the ca key cert and keys as strings with open('cacert.crt','r') as f: cacert = f.read() ca_pk = str(priv[0]['ca']) crl = ca_impl.gencrl(priv[0]['revoked_keys'],cacert,ca_pk) write_private(priv) # write out the CRL to the disk with open('cacrl.der','wb') as f: f.write(crl) convert_crl_to_pem("cacrl.der","cacrl.pem") finally: os.chdir(cwd) return crl
def main(argv=sys.argv): if os.getuid() != 0 and common.REQUIRE_ROOT: logger.critical("This process must be run as root.") return # get params for initialization registrar_ip = config.get('general', 'registrar_ip') registrar_port = config.get('general', 'registrar_port') # initialize the tmpfs partition to store keys if it isn't already available secdir = secure_mount.mount() # change dir to working dir common.ch_dir(common.WORK_DIR, logger) #initialize tpm (ek, ekcert, aik, ek_tpm, aik_name) = tpm.tpm_init( self_activate=False, config_pw=config.get('cloud_agent', 'tpm_ownerpassword') ) # this tells initialize not to self activate the AIK virtual_agent = tpm.is_vtpm() # try to get some TPM randomness into the system entropy pool tpm.init_system_rand() if ekcert is None: if virtual_agent: ekcert = 'virtual' elif tpm.is_emulator(): ekcert = 'emulator' # now we need the UUID try: agent_uuid = config.get('cloud_agent', 'agent_uuid') except configparser.NoOptionError: agent_uuid = None if agent_uuid == 'openstack': agent_uuid = openstack.get_openstack_uuid() elif agent_uuid == 'hash_ek': agent_uuid = hashlib.sha256(ek).hexdigest() elif agent_uuid == 'generate' or agent_uuid is None: agent_uuid = str(uuid.uuid4()) if common.DEVELOP_IN_ECLIPSE: agent_uuid = "C432FBB3-D2F1-4A97-9EF7-75BD81C866E9" if common.STUB_VTPM and common.TPM_CANNED_VALUES is not None: # Use canned values for stubbing jsonIn = common.TPM_CANNED_VALUES if "add_vtpm_to_group" in jsonIn: # The value we're looking for has been canned! agent_uuid = jsonIn['add_vtpm_to_group']['retout'] else: # Our command hasn't been canned! raise Exception("Command %s not found in canned json!" % ("add_vtpm_to_group")) logger.info("Agent UUID: %s" % agent_uuid) # register it and get back a blob keyblob = registrar_client.doRegisterAgent(registrar_ip, registrar_port, agent_uuid, tpm_version, ek, ekcert, aik, ek_tpm, aik_name) if keyblob is None: raise Exception("Registration failed") # get the ephemeral registrar key key = tpm.activate_identity(keyblob) if key is None: raise Exception("Activation failed") # tell the registrar server we know the key retval = False if virtual_agent: deepquote = tpm.create_deep_quote( hashlib.sha1(key).hexdigest(), agent_uuid + aik + ek) retval = registrar_client.doActivateVirtualAgent( registrar_ip, registrar_port, agent_uuid, deepquote) else: retval = registrar_client.doActivateAgent(registrar_ip, registrar_port, agent_uuid, key) if not retval: raise Exception("Registration failed on activate") serveraddr = ('', config.getint('general', 'cloudagent_port')) server = CloudAgentHTTPServer(serveraddr, Handler, agent_uuid) serverthread = threading.Thread(target=server.serve_forever) logger.info('Starting Cloud Agent on port %s use <Ctrl-C> to stop' % serveraddr[1]) serverthread.start() # want to listen for revocations? if config.getboolean('cloud_agent', 'listen_notfications'): cert_path = config.get('cloud_agent', 'revocation_cert') if cert_path == "default": cert_path = '%s/unzipped/RevocationNotifier-cert.crt' % (secdir) elif cert_path[0] != '/': # if it is a relative, convert to absolute in work_dir cert_path = os.path.abspath('%s/%s' % (common.WORK_DIR, cert_path)) def perform_actions(revocation): actionlist = [] # load the actions from inside the keylime module actionlisttxt = config.get('cloud_agent', 'revocation_actions') if actionlisttxt.strip() != "": actionlist = actionlisttxt.split(',') actionlist = ["revocation_actions.%s" % i for i in actionlist] # load actions from unzipped if os.path.exists("%s/unzipped/action_list" % secdir): with open("%s/unzipped/action_list" % secdir, 'r') as f: actionlisttxt = f.read() if actionlisttxt.strip() != "": localactions = actionlisttxt.strip().split(',') for action in localactions: if not action.startswith('local_action_'): logger.warning( "invalid local action: %s. must start with local_action_" % action) else: actionlist.append(action) uzpath = "%s/unzipped" % secdir if uzpath not in sys.path: sys.path.append(uzpath) for action in actionlist: logger.debug("executing revocation action %s" % action) try: module = importlib.import_module(action) execute = getattr(module, 'execute') asyncio.get_event_loop().run_until_complete( execute(revocation)) except Exception as e: logger.warn( "Exception during execution of revocation action %s: %s" % (action, e)) try: while True: try: revocation_notifier.await_notifications( perform_actions, revocation_cert_path=cert_path) except Exception as e: logger.exception(e) logger.warn( "No connection to revocation server, retrying in 10s..." ) time.sleep(10) except KeyboardInterrupt: logger.info("TERM Signal received, shutting down...") tpm.flush_keys() server.shutdown() else: try: while True: time.sleep(1) except KeyboardInterrupt: logger.info("TERM Signal received, shutting down...") tpm.flush_keys() server.shutdown()
def cmd_certpkg(workingdir,name,insecure=False): cwd = os.getcwd() try: common.ch_dir(workingdir,logger) # zip up the crt, private key, and public key with open('cacert.crt','r') as f: cacert = f.read() with open("%s-public.pem"%name,'r') as f: pub = f.read() with open("%s-cert.crt"%name,'r') as f: cert = f.read() with open('cacrl.der','rb') as f: crl = f.read() with open('cacrl.pem','r') as f: crlpem = f.read() cert_obj = X509.load_cert_string(cert) serial = cert_obj.get_serial_number() subject = str(cert_obj.get_subject()) priv = read_private() private = priv[0][name] with open("%s-private.pem"%name,'r') as f: prot_priv = f.read() #code to create a pem formatted protected private key using the keystore password # pk = EVP.load_key_string(str(priv[0][name])) # f = BIO.MemoryBuffer() # # globalcb will return the global password provided by the user # pk.save_key_bio(f, 'aes_256_cbc', globalcb) # prot_priv = f.getvalue() # f.close() # no compression to avoid extraction errors in tmpfs sf = io.BytesIO() with zipfile.ZipFile(sf,'w',compression=zipfile.ZIP_STORED) as f: f.writestr('%s-public.pem'%name,pub) f.writestr('%s-cert.crt'%name,cert) f.writestr('%s-private.pem'%name,private) f.writestr('cacert.crt',cacert) f.writestr('cacrl.der',crl) f.writestr('cacrl.pem',crlpem) pkg = sf.getvalue() if insecure: logger.warn("Unprotected private keys in cert package being written to disk") with open('%s-pkg.zip'%name,'w') as f: f.write(pkg) else: # actually output the package to disk with a protected private key with zipfile.ZipFile('%s-pkg.zip'%name,'w',compression=zipfile.ZIP_STORED) as f: f.writestr('%s-public.pem'%name,pub) f.writestr('%s-cert.crt'%name,cert) f.writestr('%s-private.pem'%name,prot_priv) f.writestr('cacert.crt',cacert) f.writestr('cacrl.der',crl) f.writestr('cacrl.pem',crlpem) logger.info("Creating cert package for %s in %s-pkg.zip"%(name,name)) return pkg,serial,subject finally: os.chdir(cwd)
def cmd_listen(workingdir,cert_path): cwd = os.getcwd() try: common.ch_dir(workingdir,logger) #just load up the password for later read_private(True) serveraddr = ('', common.CRL_PORT) server = ThreadedCRLServer(serveraddr,CRLHandler) if os.path.exists('cacrl.der'): logger.info("Loading existing crl: %s"%os.path.abspath("cacrl.der")) with open('cacrl.der','rb') as f: server.setcrl(f.read()) t = threading.Thread(target=server.serve_forever) logger.info("Hosting CRL on %s:%d"%(socket.getfqdn(),common.CRL_PORT)) t.start() def check_expiration(): logger.info("checking CRL for expiration every hour") while True: try: if os.path.exists('cacrl.der'): retout = cmd_exec.run("openssl crl -inform der -in cacrl.der -text -noout",lock=False)['retout'] for line in retout: line = line.strip() if line.startswith(b"Next Update:"): expire = datetime.datetime.strptime(line[13:].decode('utf-8'),"%b %d %H:%M:%S %Y %Z") # check expiration within 6 hours in1hour = datetime.datetime.utcnow()+datetime.timedelta(hours=6) if expire<=in1hour: logger.info("Certificate to expire soon %s, re-issuing"%expire) cmd_regencrl(workingdir) # check a little less than every hour time.sleep(3540) except KeyboardInterrupt: logger.info("TERM Signal received, shutting down...") #server.shutdown() break t2 = threading.Thread(target=check_expiration) t2.setDaemon(True) t2.start() def revoke_callback(revocation): json_meta = json.loads(revocation['meta_data']) serial = json_meta['cert_serial'] if revocation.get('type',None) != 'revocation' or serial is None: logger.error("Unsupported revocation message: %s"%revocation) return logger.info("Revoking certificate: %s"%serial) server.setcrl(cmd_revoke(workingdir, None, serial)) try: while True: try: revocation_notifier.await_notifications(revoke_callback,revocation_cert_path=cert_path) except Exception as e: logger.exception(e) logger.warning("No connection to revocation server, retrying in 10s...") time.sleep(10) except KeyboardInterrupt: logger.info("TERM Signal received, shutting down...") server.shutdown() sys.exit() finally: os.chdir(cwd)