| 1 | #!/usr/local/bin/python |
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| 2 | |
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| 3 | import os,sys |
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| 4 | import stat # for chmod constants |
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| 5 | import re |
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| 6 | import random |
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| 7 | import string |
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| 8 | import copy |
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| 9 | import pickle |
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| 10 | import logging |
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| 11 | import subprocess |
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| 12 | import traceback |
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| 13 | import socket |
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| 14 | |
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| 15 | from threading import * |
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| 16 | from M2Crypto.SSL import SSLError |
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| 17 | |
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| 18 | from access import access_base |
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| 19 | |
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| 20 | from util import * |
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| 21 | from deter import fedid, generate_fedid |
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| 22 | from authorizer import authorizer, abac_authorizer |
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| 23 | from service_error import service_error |
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| 24 | from remote_service import xmlrpc_handler, soap_handler, service_caller |
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| 25 | from proof import proof as access_proof |
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| 26 | |
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| 27 | import httplib |
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| 28 | import tempfile |
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| 29 | from urlparse import urlparse |
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| 30 | |
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| 31 | from deter import topdl |
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| 32 | import list_log |
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| 33 | import emulab_segment |
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| 34 | |
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| 35 | |
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| 36 | # Make log messages disappear if noone configures a fedd logger |
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| 37 | class nullHandler(logging.Handler): |
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| 38 | def emit(self, record): pass |
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| 39 | |
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| 40 | fl = logging.getLogger("fedd.access") |
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| 41 | fl.addHandler(nullHandler()) |
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| 42 | |
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| 43 | class access(access_base): |
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| 44 | """ |
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| 45 | The implementation of access control based on mapping users to projects. |
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| 46 | |
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| 47 | Users can be mapped to existing projects or have projects created |
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| 48 | dynamically. This implements both direct requests and proxies. |
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| 49 | """ |
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| 50 | |
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| 51 | max_name_len = 19 |
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| 52 | |
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| 53 | def __init__(self, config=None, auth=None): |
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| 54 | """ |
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| 55 | Initializer. Pulls parameters out of the ConfigParser's access section. |
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| 56 | """ |
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| 57 | |
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| 58 | access_base.__init__(self, config, auth) |
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| 59 | |
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| 60 | self.max_name_len = access.max_name_len |
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| 61 | |
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| 62 | self.allow_proxy = config.getboolean("access", "allow_proxy") |
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| 63 | |
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| 64 | self.domain = config.get("access", "domain") |
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| 65 | self.userconfdir = config.get("access","userconfdir") |
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| 66 | self.userconfcmd = config.get("access","userconfcmd") |
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| 67 | self.userconfurl = config.get("access","userconfurl") |
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| 68 | self.federation_software = config.get("access", "federation_software") |
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| 69 | self.portal_software = config.get("access", "portal_software") |
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| 70 | self.local_seer_software = config.get("access", "local_seer_software") |
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| 71 | self.local_seer_image = config.get("access", "local_seer_image") |
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| 72 | self.local_seer_start = config.get("access", "local_seer_start") |
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| 73 | self.seer_master_start = config.get("access", "seer_master_start") |
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| 74 | self.ssh_privkey_file = config.get("access","ssh_privkey_file") |
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| 75 | self.ssh_pubkey_file = config.get("access","ssh_pubkey_file") |
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| 76 | self.ssh_port = config.get("access","ssh_port") or "22" |
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| 77 | self.boss = config.get("access", "boss") |
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| 78 | self.ops = config.get("access", "ops") |
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| 79 | self.xmlrpc_cert = config.get("access", "xmlrpc_cert") |
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| 80 | self.xmlrpc_certpw = config.get("access", "xmlrpc_certpw") |
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| 81 | |
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| 82 | self.dragon_endpoint = config.get("access", "dragon") |
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| 83 | self.dragon_vlans = config.get("access", "dragon_vlans") |
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| 84 | self.deter_internal = config.get("access", "deter_internal") |
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| 85 | |
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| 86 | self.tunnel_config = config.getboolean("access", "tunnel_config") |
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| 87 | self.portal_command = config.get("access", "portal_command") |
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| 88 | self.portal_image = config.get("access", "portal_image") |
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| 89 | self.portal_type = config.get("access", "portal_type") or "pc" |
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| 90 | self.portal_startcommand = config.get("access", "portal_startcommand") |
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| 91 | self.node_startcommand = config.get("access", "node_startcommand") |
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| 92 | |
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| 93 | self.uri = 'https://%s:%d' % (socket.getfqdn(), |
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| 94 | self.get_port(config.get("globals", "services", "23235"))) |
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| 95 | |
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| 96 | self.federation_software = self.software_list(self.federation_software) |
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| 97 | self.portal_software = self.software_list(self.portal_software) |
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| 98 | self.local_seer_software = self.software_list(self.local_seer_software) |
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| 99 | |
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| 100 | self.access_type = self.access_type.lower() |
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| 101 | self.start_segment = emulab_segment.start_segment |
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| 102 | self.stop_segment = emulab_segment.stop_segment |
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| 103 | self.info_segment = emulab_segment.info_segment |
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| 104 | self.operation_segment = emulab_segment.operation_segment |
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| 105 | |
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| 106 | self.restricted = [ ] |
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| 107 | tb = config.get('access', 'testbed') |
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| 108 | if tb: self.testbed = [ t.strip() for t in tb.split(',') ] |
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| 109 | else: self.testbed = [ ] |
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| 110 | |
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| 111 | # authorization information |
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| 112 | self.auth_type = config.get('access', 'auth_type') \ |
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| 113 | or 'abac' |
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| 114 | self.auth_dir = config.get('access', 'auth_dir') |
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| 115 | accessdb = config.get("access", "accessdb") |
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| 116 | # initialize the authorization system |
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| 117 | if self.auth_type == 'abac': |
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| 118 | self.auth = abac_authorizer(load=self.auth_dir) |
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| 119 | self.access = [ ] |
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| 120 | if accessdb: |
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| 121 | self.read_access(accessdb, self.access_tuple) |
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| 122 | else: |
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| 123 | raise service_error(service_error.internal, |
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| 124 | "Unknown auth_type: %s" % self.auth_type) |
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| 125 | |
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| 126 | # read_state in the base_class |
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| 127 | self.state_lock.acquire() |
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| 128 | if 'allocation' not in self.state: self.state['allocation']= { } |
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| 129 | self.allocation = self.state['allocation'] |
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| 130 | self.state_lock.release() |
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| 131 | self.exports = { |
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| 132 | 'SMB': self.export_SMB, |
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| 133 | 'seer': self.export_seer, |
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| 134 | 'tmcd': self.export_tmcd, |
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| 135 | 'userconfig': self.export_userconfig, |
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| 136 | 'project_export': self.export_project_export, |
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| 137 | 'local_seer_control': self.export_local_seer, |
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| 138 | 'seer_master': self.export_seer_master, |
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| 139 | 'hide_hosts': self.export_hide_hosts, |
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| 140 | } |
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| 141 | |
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| 142 | if not self.local_seer_image or not self.local_seer_software or \ |
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| 143 | not self.local_seer_start: |
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| 144 | if 'local_seer_control' in self.exports: |
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| 145 | del self.exports['local_seer_control'] |
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| 146 | |
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| 147 | if not self.local_seer_image or not self.local_seer_software or \ |
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| 148 | not self.seer_master_start: |
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| 149 | if 'seer_master' in self.exports: |
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| 150 | del self.exports['seer_master'] |
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| 151 | |
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| 152 | |
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| 153 | self.soap_services = {\ |
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| 154 | 'RequestAccess': soap_handler("RequestAccess", self.RequestAccess), |
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| 155 | 'ReleaseAccess': soap_handler("ReleaseAccess", self.ReleaseAccess), |
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| 156 | 'StartSegment': soap_handler("StartSegment", self.StartSegment), |
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| 157 | 'TerminateSegment': soap_handler("TerminateSegment", |
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| 158 | self.TerminateSegment), |
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| 159 | 'InfoSegment': soap_handler("InfoSegment", self.InfoSegment), |
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| 160 | 'OperationSegment': soap_handler("OperationSegment", |
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| 161 | self.OperationSegment), |
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| 162 | } |
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| 163 | self.xmlrpc_services = {\ |
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| 164 | 'RequestAccess': xmlrpc_handler('RequestAccess', |
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| 165 | self.RequestAccess), |
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| 166 | 'ReleaseAccess': xmlrpc_handler('ReleaseAccess', |
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| 167 | self.ReleaseAccess), |
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| 168 | 'StartSegment': xmlrpc_handler("StartSegment", self.StartSegment), |
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| 169 | 'TerminateSegment': xmlrpc_handler('TerminateSegment', |
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| 170 | self.TerminateSegment), |
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| 171 | 'InfoSegment': xmlrpc_handler("InfoSegment", self.InfoSegment), |
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| 172 | 'OperationSegment': xmlrpc_handler("OperationSegment", |
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| 173 | self.OperationSegment), |
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| 174 | } |
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| 175 | |
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| 176 | self.call_SetValue = service_caller('SetValue') |
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| 177 | self.call_GetValue = service_caller('GetValue', log=self.log) |
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| 178 | |
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| 179 | @staticmethod |
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| 180 | def get_port(ps): |
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| 181 | ''' |
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| 182 | Take a fedd service string and return the first port. Used in |
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| 183 | creating the testbed uri identifier. |
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| 184 | ''' |
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| 185 | p = ps.split(',') |
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| 186 | smallport = p[0].split(':') |
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| 187 | try: |
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| 188 | rv = int(smallport[0]) |
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| 189 | except ValueError: |
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| 190 | rv = 23235 |
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| 191 | return rv |
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| 192 | |
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| 193 | @staticmethod |
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| 194 | def access_tuple(str): |
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| 195 | """ |
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| 196 | Convert a string of the form (id, id, id) into an access_project. This |
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| 197 | is called by read_access to convert to local attributes. It returns a |
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| 198 | tuple of the form (project, user, certificate_file). |
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| 199 | """ |
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| 200 | |
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| 201 | str = str.strip() |
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| 202 | if str.startswith('(') and str.endswith(')') and str.count(',') == 2: |
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| 203 | # The slice takes the parens off the string. |
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| 204 | proj, user, cert = str[1:-1].split(',') |
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| 205 | return (proj.strip(), user.strip(), cert.strip()) |
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| 206 | else: |
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| 207 | raise self.parse_error( |
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| 208 | 'Bad mapping (unbalanced parens or more than 2 commas)') |
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| 209 | |
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| 210 | # RequestAccess support routines |
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| 211 | |
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| 212 | def save_project_state(self, aid, pname, uname, certf, owners): |
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| 213 | """ |
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| 214 | Save the project, user, and owners associated with this allocation. |
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| 215 | This creates the allocation entry. |
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| 216 | """ |
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| 217 | self.state_lock.acquire() |
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| 218 | self.allocation[aid] = { } |
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| 219 | self.allocation[aid]['project'] = pname |
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| 220 | self.allocation[aid]['user'] = uname |
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| 221 | self.allocation[aid]['cert'] = certf |
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| 222 | self.allocation[aid]['owners'] = owners |
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| 223 | self.write_state() |
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| 224 | self.state_lock.release() |
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| 225 | return (pname, uname) |
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| 226 | |
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| 227 | # End of RequestAccess support routines |
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| 228 | |
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| 229 | def RequestAccess(self, req, fid): |
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| 230 | """ |
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| 231 | Handle the access request. Proxy if not for us. |
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| 232 | |
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| 233 | Parse out the fields and make the allocations or rejections if for us, |
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| 234 | otherwise, assuming we're willing to proxy, proxy the request out. |
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| 235 | """ |
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| 236 | |
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| 237 | def gateway_hardware(h): |
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| 238 | if h == 'GWTYPE': return self.portal_type or 'GWTYPE' |
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| 239 | else: return h |
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| 240 | |
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| 241 | def get_export_project(svcs): |
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| 242 | """ |
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| 243 | if the service requests includes one to export a project, return |
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| 244 | that project. |
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| 245 | """ |
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| 246 | rv = None |
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| 247 | for s in svcs: |
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| 248 | if s.get('name', '') == 'project_export' and \ |
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| 249 | s.get('visibility', '') == 'export': |
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| 250 | if not rv: |
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| 251 | for a in s.get('fedAttr', []): |
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| 252 | if a.get('attribute', '') == 'project' \ |
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| 253 | and 'value' in a: |
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| 254 | rv = a['value'] |
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| 255 | else: |
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| 256 | raise service_error(service_error, access, |
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| 257 | 'Requesting multiple project exports is ' + \ |
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| 258 | 'not supported'); |
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| 259 | return rv |
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| 260 | |
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| 261 | self.log.info("RequestAccess called by %s" % fid) |
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| 262 | # The dance to get into the request body |
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| 263 | if req.has_key('RequestAccessRequestBody'): |
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| 264 | req = req['RequestAccessRequestBody'] |
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| 265 | else: |
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| 266 | raise service_error(service_error.req, "No request!?") |
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| 267 | |
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| 268 | # if this includes a project export request, construct a filter such |
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| 269 | # that only the ABAC attributes mapped to that project are checked for |
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| 270 | # access. |
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| 271 | if 'service' in req: |
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| 272 | ep = get_export_project(req['service']) |
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| 273 | if ep: pf = lambda(a): a.value[0] == ep |
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| 274 | else: pf = None |
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| 275 | else: |
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| 276 | ep = None |
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| 277 | pf = None |
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| 278 | |
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| 279 | if self.auth.import_credentials( |
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| 280 | data_list=req.get('abac_credential', [])): |
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| 281 | self.auth.save() |
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| 282 | else: |
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| 283 | self.log.debug('failed to import incoming credentials') |
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| 284 | |
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| 285 | if self.auth_type == 'abac': |
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| 286 | found, owners, proof = self.lookup_access(req, fid, filter=pf) |
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| 287 | else: |
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| 288 | raise service_error(service_error.internal, |
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| 289 | 'Unknown auth_type: %s' % self.auth_type) |
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| 290 | ap = None |
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| 291 | |
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| 292 | # keep track of what's been added |
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| 293 | allocID, alloc_cert = generate_fedid(subj="alloc", log=self.log) |
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| 294 | aid = unicode(allocID) |
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| 295 | |
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| 296 | pname, uname = self.save_project_state(aid, found[0], found[1], |
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| 297 | found[2], owners) |
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| 298 | |
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| 299 | services, svc_state = self.export_services(req.get('service',[]), |
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| 300 | pname, uname) |
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| 301 | self.state_lock.acquire() |
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| 302 | # Store services state in global state |
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| 303 | for k, v in svc_state.items(): |
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| 304 | self.allocation[aid][k] = v |
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| 305 | self.append_allocation_authorization(aid, |
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| 306 | set([(o, allocID) for o in owners]), state_attr='allocation') |
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| 307 | self.write_state() |
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| 308 | self.state_lock.release() |
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| 309 | try: |
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| 310 | f = open("%s/%s.pem" % (self.certdir, aid), "w") |
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| 311 | print >>f, alloc_cert |
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| 312 | f.close() |
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| 313 | except EnvironmentError, e: |
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| 314 | self.log.info("RequestAccess failed for by %s: internal error" \ |
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| 315 | % fid) |
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| 316 | raise service_error(service_error.internal, |
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| 317 | "Can't open %s/%s : %s" % (self.certdir, aid, e)) |
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| 318 | self.log.debug('RequestAccess Returning allocation ID: %s' % allocID) |
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| 319 | resp = self.build_access_response({ 'fedid': allocID } , |
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| 320 | pname, services, proof) |
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| 321 | return resp |
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| 322 | |
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| 323 | def ReleaseAccess(self, req, fid): |
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| 324 | self.log.info("ReleaseAccess called by %s" % fid) |
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| 325 | # The dance to get into the request body |
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| 326 | if req.has_key('ReleaseAccessRequestBody'): |
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| 327 | req = req['ReleaseAccessRequestBody'] |
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| 328 | else: |
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| 329 | raise service_error(service_error.req, "No request!?") |
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| 330 | |
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| 331 | try: |
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| 332 | if req['allocID'].has_key('localname'): |
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| 333 | auth_attr = aid = req['allocID']['localname'] |
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| 334 | elif req['allocID'].has_key('fedid'): |
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| 335 | aid = unicode(req['allocID']['fedid']) |
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| 336 | auth_attr = req['allocID']['fedid'] |
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| 337 | else: |
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| 338 | raise service_error(service_error.req, |
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| 339 | "Only localnames and fedids are understood") |
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| 340 | except KeyError: |
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| 341 | raise service_error(service_error.req, "Badly formed request") |
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| 342 | |
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| 343 | self.log.debug("[access] deallocation requested for %s by %s" % \ |
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| 344 | (aid, fid)) |
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| 345 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
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| 346 | with_proof=True) |
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| 347 | if not access_ok: |
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| 348 | self.log.debug("[access] deallocation denied for %s", aid) |
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| 349 | raise service_error(service_error.access, "Access Denied") |
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| 350 | |
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| 351 | self.state_lock.acquire() |
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| 352 | if aid in self.allocation: |
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| 353 | self.log.debug("Found allocation for %s" %aid) |
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| 354 | self.clear_allocation_authorization(aid, state_attr='allocation') |
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| 355 | del self.allocation[aid] |
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| 356 | self.write_state() |
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| 357 | self.state_lock.release() |
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| 358 | # Remove the access cert |
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| 359 | cf = "%s/%s.pem" % (self.certdir, aid) |
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| 360 | self.log.debug("Removing %s" % cf) |
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| 361 | os.remove(cf) |
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| 362 | self.log.info("ReleaseAccess succeeded for %s" % fid) |
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| 363 | return { 'allocID': req['allocID'], 'proof': proof.to_dict() } |
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| 364 | else: |
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| 365 | self.state_lock.release() |
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| 366 | raise service_error(service_error.req, "No such allocation") |
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| 367 | |
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| 368 | # These are subroutines for StartSegment |
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| 369 | def generate_ns2(self, topo, expfn, softdir, connInfo): |
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| 370 | """ |
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| 371 | Convert topo into an ns2 file, decorated with appropriate commands for |
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| 372 | the particular testbed setup. Convert all requests for software, etc |
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| 373 | to point at the staged copies on this testbed and add the federation |
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| 374 | startcommands. |
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| 375 | """ |
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| 376 | class dragon_commands: |
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| 377 | """ |
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| 378 | Functor to spit out approrpiate dragon commands for nodes listed in |
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| 379 | the connectivity description. The constructor makes a dict mapping |
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| 380 | dragon nodes to their parameters and the __call__ checks each |
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| 381 | element in turn for membership. |
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| 382 | """ |
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| 383 | def __init__(self, map): |
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| 384 | self.node_info = map |
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| 385 | |
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| 386 | def __call__(self, e): |
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| 387 | s = "" |
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| 388 | if isinstance(e, topdl.Computer): |
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| 389 | if self.node_info.has_key(e.name): |
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| 390 | info = self.node_info[e.name] |
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| 391 | for ifname, vlan, type in info: |
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| 392 | for i in e.interface: |
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| 393 | if i.name == ifname: |
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| 394 | addr = i.get_attribute('ip4_address') |
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| 395 | subs = i.substrate[0] |
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| 396 | break |
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| 397 | else: |
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| 398 | raise service_error(service_error.internal, |
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| 399 | "No interface %s on element %s" % \ |
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| 400 | (ifname, e.name)) |
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| 401 | # XXX: do netmask right |
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| 402 | if type =='link': |
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| 403 | s = ("tb-allow-external ${%s} " + \ |
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| 404 | "dragonportal ip %s vlan %s " + \ |
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| 405 | "netmask 255.255.255.0\n") % \ |
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| 406 | (topdl.to_tcl_name(e.name), addr, vlan) |
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| 407 | elif type =='lan': |
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| 408 | s = ("tb-allow-external ${%s} " + \ |
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| 409 | "dragonportal " + \ |
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| 410 | "ip %s vlan %s usurp %s\n") % \ |
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| 411 | (topdl.to_tcl_name(e.name), addr, |
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| 412 | vlan, subs) |
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| 413 | else: |
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| 414 | raise service_error(service_error_internal, |
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| 415 | "Unknown DRAGON type %s" % type) |
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| 416 | return s |
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| 417 | |
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| 418 | class not_dragon: |
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| 419 | """ |
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| 420 | Return true if a node is in the given map of dragon nodes. |
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| 421 | """ |
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| 422 | def __init__(self, map): |
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| 423 | self.nodes = set(map.keys()) |
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| 424 | |
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| 425 | def __call__(self, e): |
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| 426 | return e.name not in self.nodes |
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| 427 | |
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| 428 | def have_portals(top): |
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| 429 | ''' |
|---|
| 430 | Return true if the topology has a portal node |
|---|
| 431 | ''' |
|---|
| 432 | # The else is on the for |
|---|
| 433 | for e in top.elements: |
|---|
| 434 | if isinstance(e, topdl.Computer) and e.get_attribute('portal'): |
|---|
| 435 | return True |
|---|
| 436 | else: |
|---|
| 437 | return False |
|---|
| 438 | |
|---|
| 439 | |
|---|
| 440 | # Main line of generate_ns2 |
|---|
| 441 | t = topo.clone() |
|---|
| 442 | |
|---|
| 443 | # Create the map of nodes that need direct connections (dragon |
|---|
| 444 | # connections) from the connInfo |
|---|
| 445 | dragon_map = { } |
|---|
| 446 | for i in [ i for i in connInfo if i['type'] == 'transit']: |
|---|
| 447 | for a in i.get('fedAttr', []): |
|---|
| 448 | if a['attribute'] == 'vlan_id': |
|---|
| 449 | vlan = a['value'] |
|---|
| 450 | break |
|---|
| 451 | else: |
|---|
| 452 | raise service_error(service_error.internal, "No vlan tag") |
|---|
| 453 | members = i.get('member', []) |
|---|
| 454 | if len(members) > 1: type = 'lan' |
|---|
| 455 | else: type = 'link' |
|---|
| 456 | |
|---|
| 457 | try: |
|---|
| 458 | for m in members: |
|---|
| 459 | if m['element'] in dragon_map: |
|---|
| 460 | dragon_map[m['element']].append(( m['interface'], |
|---|
| 461 | vlan, type)) |
|---|
| 462 | else: |
|---|
| 463 | dragon_map[m['element']] = [( m['interface'], |
|---|
| 464 | vlan, type),] |
|---|
| 465 | except KeyError: |
|---|
| 466 | raise service_error(service_error.req, |
|---|
| 467 | "Missing connectivity info") |
|---|
| 468 | |
|---|
| 469 | # Weed out the things we aren't going to instantiate: Segments, portal |
|---|
| 470 | # substrates, and portal interfaces. (The copy in the for loop allows |
|---|
| 471 | # us to delete from e.elements in side the for loop). While we're |
|---|
| 472 | # touching all the elements, we also adjust paths from the original |
|---|
| 473 | # testbed to local testbed paths and put the federation commands into |
|---|
| 474 | # the start commands |
|---|
| 475 | local = len(dragon_map) == 0 and not have_portals(t) |
|---|
| 476 | if local: routing = 'Static' |
|---|
| 477 | else: routing = 'Manual' |
|---|
| 478 | |
|---|
| 479 | if local: |
|---|
| 480 | self.log.debug("Local experiment.") |
|---|
| 481 | for e in [e for e in t.elements]: |
|---|
| 482 | if isinstance(e, topdl.Segment): |
|---|
| 483 | t.elements.remove(e) |
|---|
| 484 | if isinstance(e, topdl.Computer): |
|---|
| 485 | self.add_kit(e, self.federation_software) |
|---|
| 486 | if e.get_attribute('portal') and self.portal_startcommand: |
|---|
| 487 | # Add local portal support software |
|---|
| 488 | self.add_kit(e, self.portal_software) |
|---|
| 489 | # Portals never have a user-specified start command |
|---|
| 490 | e.set_attribute('startup', self.portal_startcommand) |
|---|
| 491 | elif not local and self.node_startcommand: |
|---|
| 492 | if e.get_attribute('startup'): |
|---|
| 493 | e.set_attribute('startup', "%s \\$USER '%s'" % \ |
|---|
| 494 | (self.node_startcommand, |
|---|
| 495 | e.get_attribute('startup'))) |
|---|
| 496 | else: |
|---|
| 497 | e.set_attribute('startup', self.node_startcommand) |
|---|
| 498 | |
|---|
| 499 | dinf = [i[0] for i in dragon_map.get(e.name, []) ] |
|---|
| 500 | # Remove portal interfaces that do not connect to DRAGON |
|---|
| 501 | e.interface = [i for i in e.interface \ |
|---|
| 502 | if not i.get_attribute('portal') or i.name in dinf ] |
|---|
| 503 | # Fix software paths |
|---|
| 504 | for s in getattr(e, 'software', []): |
|---|
| 505 | s.location = re.sub("^.*/", softdir, s.location) |
|---|
| 506 | |
|---|
| 507 | t.substrates = [ s.clone() for s in t.substrates ] |
|---|
| 508 | t.incorporate_elements() |
|---|
| 509 | |
|---|
| 510 | # Customize the ns2 output for local portal commands and images |
|---|
| 511 | filters = [] |
|---|
| 512 | |
|---|
| 513 | if self.dragon_endpoint: |
|---|
| 514 | add_filter = not_dragon(dragon_map) |
|---|
| 515 | filters.append(dragon_commands(dragon_map)) |
|---|
| 516 | else: |
|---|
| 517 | add_filter = None |
|---|
| 518 | |
|---|
| 519 | if self.portal_command: |
|---|
| 520 | filters.append(topdl.generate_portal_command_filter( |
|---|
| 521 | self.portal_command, add_filter=add_filter)) |
|---|
| 522 | |
|---|
| 523 | if self.portal_image: |
|---|
| 524 | filters.append(topdl.generate_portal_image_filter( |
|---|
| 525 | self.portal_image)) |
|---|
| 526 | |
|---|
| 527 | if self.portal_type: |
|---|
| 528 | filters.append(topdl.generate_portal_hardware_filter( |
|---|
| 529 | self.portal_type)) |
|---|
| 530 | |
|---|
| 531 | # Convert to ns and write it out |
|---|
| 532 | expfile = topdl.topology_to_ns2(t, filters, routing=routing) |
|---|
| 533 | try: |
|---|
| 534 | f = open(expfn, "w") |
|---|
| 535 | print >>f, expfile |
|---|
| 536 | f.close() |
|---|
| 537 | except EnvironmentError: |
|---|
| 538 | raise service_error(service_error.internal, |
|---|
| 539 | "Cannot write experiment file %s: %s" % (expfn,e)) |
|---|
| 540 | |
|---|
| 541 | def export_store_info(self, cf, proj, ename, connInfo): |
|---|
| 542 | """ |
|---|
| 543 | For the export requests in the connection info, install the peer names |
|---|
| 544 | at the experiment controller via SetValue calls. |
|---|
| 545 | """ |
|---|
| 546 | |
|---|
| 547 | for c in connInfo: |
|---|
| 548 | for p in [ p for p in c.get('parameter', []) \ |
|---|
| 549 | if p.get('type', '') == 'output']: |
|---|
| 550 | |
|---|
| 551 | if p.get('name', '') == 'peer': |
|---|
| 552 | k = p.get('key', None) |
|---|
| 553 | surl = p.get('store', None) |
|---|
| 554 | if surl and k and k.index('/') != -1: |
|---|
| 555 | value = "%s.%s.%s%s" % \ |
|---|
| 556 | (k[k.index('/')+1:], ename, proj, self.domain) |
|---|
| 557 | req = { 'name': k, 'value': value } |
|---|
| 558 | self.log.debug("Setting %s to %s on %s" % \ |
|---|
| 559 | (k, value, surl)) |
|---|
| 560 | self.call_SetValue(surl, req, cf) |
|---|
| 561 | else: |
|---|
| 562 | self.log.error("Bad export request: %s" % p) |
|---|
| 563 | elif p.get('name', '') == 'ssh_port': |
|---|
| 564 | k = p.get('key', None) |
|---|
| 565 | surl = p.get('store', None) |
|---|
| 566 | if surl and k: |
|---|
| 567 | req = { 'name': k, 'value': self.ssh_port } |
|---|
| 568 | self.log.debug("Setting %s to %s on %s" % \ |
|---|
| 569 | (k, self.ssh_port, surl)) |
|---|
| 570 | self.call_SetValue(surl, req, cf) |
|---|
| 571 | else: |
|---|
| 572 | self.log.error("Bad export request: %s" % p) |
|---|
| 573 | else: |
|---|
| 574 | self.log.error("Unknown export parameter: %s" % \ |
|---|
| 575 | p.get('name')) |
|---|
| 576 | continue |
|---|
| 577 | |
|---|
| 578 | def add_seer_node(self, topo, name, startup): |
|---|
| 579 | """ |
|---|
| 580 | Add a seer node to the given topology, with the startup command passed |
|---|
| 581 | in. Used by configure seer_services. |
|---|
| 582 | """ |
|---|
| 583 | c_node = topdl.Computer( |
|---|
| 584 | name=name, |
|---|
| 585 | os= topdl.OperatingSystem( |
|---|
| 586 | attribute=[ |
|---|
| 587 | { 'attribute': 'osid', |
|---|
| 588 | 'value': self.local_seer_image }, |
|---|
| 589 | ]), |
|---|
| 590 | attribute=[ |
|---|
| 591 | { 'attribute': 'startup', 'value': startup }, |
|---|
| 592 | ] |
|---|
| 593 | ) |
|---|
| 594 | self.add_kit(c_node, self.local_seer_software) |
|---|
| 595 | topo.elements.append(c_node) |
|---|
| 596 | |
|---|
| 597 | def configure_seer_services(self, services, topo, softdir): |
|---|
| 598 | """ |
|---|
| 599 | Make changes to the topology required for the seer requests being made. |
|---|
| 600 | Specifically, add any control or master nodes required and set up the |
|---|
| 601 | start commands on the nodes to interconnect them. |
|---|
| 602 | """ |
|---|
| 603 | local_seer = False # True if we need to add a control node |
|---|
| 604 | collect_seer = False # True if there is a seer-master node |
|---|
| 605 | seer_master= False # True if we need to add the seer-master |
|---|
| 606 | for s in services: |
|---|
| 607 | s_name = s.get('name', '') |
|---|
| 608 | s_vis = s.get('visibility','') |
|---|
| 609 | |
|---|
| 610 | if s_name == 'local_seer_control' and s_vis == 'export': |
|---|
| 611 | local_seer = True |
|---|
| 612 | elif s_name == 'seer_master': |
|---|
| 613 | if s_vis == 'import': |
|---|
| 614 | collect_seer = True |
|---|
| 615 | elif s_vis == 'export': |
|---|
| 616 | seer_master = True |
|---|
| 617 | |
|---|
| 618 | # We've got the whole picture now, so add nodes if needed and configure |
|---|
| 619 | # them to interconnect properly. |
|---|
| 620 | if local_seer or seer_master: |
|---|
| 621 | # Copy local seer control node software to the tempdir |
|---|
| 622 | for l, f in self.local_seer_software: |
|---|
| 623 | base = os.path.basename(f) |
|---|
| 624 | copy_file(f, "%s/%s" % (softdir, base)) |
|---|
| 625 | # If we're collecting seers somewhere the controllers need to talk to |
|---|
| 626 | # the master. In testbeds that export the service, that will be a |
|---|
| 627 | # local node that we'll add below. Elsewhere it will be the control |
|---|
| 628 | # portal that will port forward to the exporting master. |
|---|
| 629 | if local_seer: |
|---|
| 630 | if collect_seer: |
|---|
| 631 | startup = "%s -C %s" % (self.local_seer_start, "seer-master") |
|---|
| 632 | else: |
|---|
| 633 | startup = self.local_seer_start |
|---|
| 634 | self.add_seer_node(topo, 'control', startup) |
|---|
| 635 | # If this is the seer master, add that node, too. |
|---|
| 636 | if seer_master: |
|---|
| 637 | self.add_seer_node(topo, 'seer-master', |
|---|
| 638 | "%s -R -n -R seer-master -R -A -R sink" % \ |
|---|
| 639 | self.seer_master_start) |
|---|
| 640 | |
|---|
| 641 | def retrieve_software(self, topo, certfile, softdir): |
|---|
| 642 | """ |
|---|
| 643 | Collect the software that nodes in the topology need loaded and stage |
|---|
| 644 | it locally. This implies retrieving it from the experiment_controller |
|---|
| 645 | and placing it into softdir. Certfile is used to prove that this node |
|---|
| 646 | has access to that data (it's the allocation/segment fedid). Finally |
|---|
| 647 | local portal and federation software is also copied to the same staging |
|---|
| 648 | directory for simplicity - all software needed for experiment creation |
|---|
| 649 | is in softdir. |
|---|
| 650 | """ |
|---|
| 651 | sw = set() |
|---|
| 652 | for e in topo.elements: |
|---|
| 653 | for s in getattr(e, 'software', []): |
|---|
| 654 | sw.add(s.location) |
|---|
| 655 | for s in sw: |
|---|
| 656 | self.log.debug("Retrieving %s" % s) |
|---|
| 657 | try: |
|---|
| 658 | get_url(s, certfile, softdir) |
|---|
| 659 | except: |
|---|
| 660 | t, v, st = sys.exc_info() |
|---|
| 661 | raise service_error(service_error.internal, |
|---|
| 662 | "Error retrieving %s: %s" % (s, v)) |
|---|
| 663 | |
|---|
| 664 | # Copy local federation and portal node software to the tempdir |
|---|
| 665 | for s in (self.federation_software, self.portal_software): |
|---|
| 666 | for l, f in s: |
|---|
| 667 | base = os.path.basename(f) |
|---|
| 668 | copy_file(f, "%s/%s" % (softdir, base)) |
|---|
| 669 | |
|---|
| 670 | |
|---|
| 671 | def initialize_experiment_info(self, attrs, aid, certfile, tmpdir): |
|---|
| 672 | """ |
|---|
| 673 | Gather common configuration files, retrieve or create an experiment |
|---|
| 674 | name and project name, and return the ssh_key filenames. Create an |
|---|
| 675 | allocation log bound to the state log variable as well. |
|---|
| 676 | """ |
|---|
| 677 | configs = ('hosts', 'ssh_pubkey', 'ssh_secretkey', |
|---|
| 678 | 'seer_ca_pem', 'seer_node_pem') |
|---|
| 679 | ename = None |
|---|
| 680 | pubkey_base = None |
|---|
| 681 | secretkey_base = None |
|---|
| 682 | proj = None |
|---|
| 683 | user = None |
|---|
| 684 | alloc_log = None |
|---|
| 685 | nonce_experiment = False |
|---|
| 686 | vchars_re = '[^' + string.ascii_letters + string.digits + '-]' |
|---|
| 687 | |
|---|
| 688 | self.state_lock.acquire() |
|---|
| 689 | if aid in self.allocation: |
|---|
| 690 | proj = self.allocation[aid].get('project', None) |
|---|
| 691 | self.state_lock.release() |
|---|
| 692 | |
|---|
| 693 | if not proj: |
|---|
| 694 | raise service_error(service_error.internal, |
|---|
| 695 | "Can't find project for %s" %aid) |
|---|
| 696 | |
|---|
| 697 | for a in attrs: |
|---|
| 698 | if a['attribute'] in configs: |
|---|
| 699 | try: |
|---|
| 700 | self.log.debug("Retrieving %s from %s" % \ |
|---|
| 701 | (a['attribute'], a['value'])) |
|---|
| 702 | get_url(a['value'], certfile, tmpdir) |
|---|
| 703 | except: |
|---|
| 704 | t, v, st = sys.exc_info() |
|---|
| 705 | raise service_error(service_error.internal, |
|---|
| 706 | "Error retrieving %s: %s" % (a.get('value', ""), v)) |
|---|
| 707 | if a['attribute'] == 'ssh_pubkey': |
|---|
| 708 | pubkey_base = a['value'].rpartition('/')[2] |
|---|
| 709 | if a['attribute'] == 'ssh_secretkey': |
|---|
| 710 | secretkey_base = a['value'].rpartition('/')[2] |
|---|
| 711 | if a['attribute'] == 'experiment_name': |
|---|
| 712 | ename = a['value'] |
|---|
| 713 | |
|---|
| 714 | # Names longer than the emulab max are discarded |
|---|
| 715 | if ename and len(ename) <= self.max_name_len: |
|---|
| 716 | # Clean up the experiment name so that emulab will accept it. |
|---|
| 717 | ename = re.sub(vchars_re, '-', ename) |
|---|
| 718 | |
|---|
| 719 | else: |
|---|
| 720 | ename = "" |
|---|
| 721 | for i in range(0,5): |
|---|
| 722 | ename += random.choice(string.ascii_letters) |
|---|
| 723 | nonce_experiment = True |
|---|
| 724 | self.log.warn("No experiment name or suggestion too long: " + \ |
|---|
| 725 | "picked one randomly: %s" % ename) |
|---|
| 726 | |
|---|
| 727 | if not pubkey_base: |
|---|
| 728 | raise service_error(service_error.req, |
|---|
| 729 | "No public key attribute") |
|---|
| 730 | |
|---|
| 731 | if not secretkey_base: |
|---|
| 732 | raise service_error(service_error.req, |
|---|
| 733 | "No secret key attribute") |
|---|
| 734 | |
|---|
| 735 | self.state_lock.acquire() |
|---|
| 736 | if aid in self.allocation: |
|---|
| 737 | user = self.allocation[aid].get('user', None) |
|---|
| 738 | cert = self.allocation[aid].get('cert', None) |
|---|
| 739 | self.allocation[aid]['experiment'] = ename |
|---|
| 740 | self.allocation[aid]['nonce'] = nonce_experiment |
|---|
| 741 | self.allocation[aid]['log'] = [ ] |
|---|
| 742 | # Create a logger that logs to the experiment's state object as |
|---|
| 743 | # well as to the main log file. |
|---|
| 744 | alloc_log = logging.getLogger('fedd.access.%s' % ename) |
|---|
| 745 | h = logging.StreamHandler( |
|---|
| 746 | list_log.list_log(self.allocation[aid]['log'])) |
|---|
| 747 | # XXX: there should be a global one of these rather than |
|---|
| 748 | # repeating the code. |
|---|
| 749 | h.setFormatter(logging.Formatter( |
|---|
| 750 | "%(asctime)s %(name)s %(message)s", |
|---|
| 751 | '%d %b %y %H:%M:%S')) |
|---|
| 752 | alloc_log.addHandler(h) |
|---|
| 753 | self.write_state() |
|---|
| 754 | self.state_lock.release() |
|---|
| 755 | |
|---|
| 756 | if not user: |
|---|
| 757 | raise service_error(service_error.internal, |
|---|
| 758 | "Can't find creation user for %s" %aid) |
|---|
| 759 | |
|---|
| 760 | return (ename, proj, user, cert, pubkey_base, secretkey_base, alloc_log) |
|---|
| 761 | |
|---|
| 762 | def decorate_topology(self, info, t): |
|---|
| 763 | """ |
|---|
| 764 | Copy the physical mapping and status onto the topology. Used by |
|---|
| 765 | StartSegment and InfoSegment |
|---|
| 766 | """ |
|---|
| 767 | def add_new(ann, attr): |
|---|
| 768 | for a in ann: |
|---|
| 769 | if a not in attr: attr.append(a) |
|---|
| 770 | |
|---|
| 771 | def merge_os(os, e): |
|---|
| 772 | if len(e.os) == 0: |
|---|
| 773 | # No OS at all: |
|---|
| 774 | if os.get_attribute('emulab_access:image'): |
|---|
| 775 | os.set_attribute('emulab_access:initial_image', |
|---|
| 776 | os.get_attribute('emulab_access:image')) |
|---|
| 777 | e.os = [ os ] |
|---|
| 778 | elif len(e.os) == 1: |
|---|
| 779 | # There's one OS, copy the initial image and replace |
|---|
| 780 | eos = e.os[0] |
|---|
| 781 | initial = eos.get_attribute('emulab_access:initial_image') |
|---|
| 782 | if initial: |
|---|
| 783 | os.set_attribute('emulab_access:initial_image', initial) |
|---|
| 784 | e.os = [ os] |
|---|
| 785 | else: |
|---|
| 786 | # Multiple OSes, replace or append |
|---|
| 787 | for eos in e.os: |
|---|
| 788 | if os.name == eos.name: |
|---|
| 789 | eos.version = os.version |
|---|
| 790 | eos.version = os.distribution |
|---|
| 791 | eos.version = os.distributionversion |
|---|
| 792 | for a in os.attribute: |
|---|
| 793 | if eos.get_attribute(a.attribute): |
|---|
| 794 | eos.remove_attribute(a.attribute) |
|---|
| 795 | eos.set_attribute(a.attribute, a.value) |
|---|
| 796 | break |
|---|
| 797 | else: |
|---|
| 798 | e.os.append(os) |
|---|
| 799 | |
|---|
| 800 | |
|---|
| 801 | if t is None: return |
|---|
| 802 | i = 0 # For fake debugging instantiation |
|---|
| 803 | # Copy the assigned names into the return topology |
|---|
| 804 | for e in t.elements: |
|---|
| 805 | if isinstance(e, topdl.Computer): |
|---|
| 806 | if not self.create_debug: |
|---|
| 807 | if e.name in info.node: |
|---|
| 808 | add_new(("%s%s" % |
|---|
| 809 | (info.node[e.name].pname, self.domain),), |
|---|
| 810 | e.localname) |
|---|
| 811 | add_new(("%s%s" % |
|---|
| 812 | (info.node[e.name].lname, self.domain),), |
|---|
| 813 | e.localname) |
|---|
| 814 | e.status = info.node[e.name].status |
|---|
| 815 | os = info.node[e.name].getOS() |
|---|
| 816 | if os: merge_os(os, e) |
|---|
| 817 | else: |
|---|
| 818 | # Simple debugging assignment |
|---|
| 819 | add_new(("node%d%s" % (i, self.domain),), e.localname) |
|---|
| 820 | e.status = 'active' |
|---|
| 821 | add_new(('testop1', 'testop2'), e.operation) |
|---|
| 822 | i += 1 |
|---|
| 823 | |
|---|
| 824 | for s in t.substrates: |
|---|
| 825 | if s.name in info.subs: |
|---|
| 826 | sub = info.subs[s.name] |
|---|
| 827 | if sub.cap is not None: |
|---|
| 828 | s.capacity = topdl.Capacity(sub.cap, 'max') |
|---|
| 829 | if sub.delay is not None: |
|---|
| 830 | s.delay = topdl.Latency(sub.delay, 'max') |
|---|
| 831 | # XXX interfaces |
|---|
| 832 | |
|---|
| 833 | |
|---|
| 834 | def finalize_experiment(self, starter, topo, aid, alloc_id, proof): |
|---|
| 835 | """ |
|---|
| 836 | Store key bits of experiment state in the global repository, including |
|---|
| 837 | the response that may need to be replayed, and return the response. |
|---|
| 838 | """ |
|---|
| 839 | def get_localnames(t): |
|---|
| 840 | names = [ ] |
|---|
| 841 | for e in t.elements: |
|---|
| 842 | if isinstance(e, topdl.Computer): |
|---|
| 843 | n = e.get_attribute('testbed') |
|---|
| 844 | if n is not None and n not in names: |
|---|
| 845 | names.append(n) |
|---|
| 846 | return names |
|---|
| 847 | i = 0 |
|---|
| 848 | t = topo.clone() |
|---|
| 849 | self.decorate_topology(starter, t) |
|---|
| 850 | # Grab the log (this is some anal locking, but better safe than |
|---|
| 851 | # sorry) |
|---|
| 852 | self.state_lock.acquire() |
|---|
| 853 | # Put information about this testbed into the topdl |
|---|
| 854 | tb = topdl.Testbed(self.uri, "deter", |
|---|
| 855 | localname=get_localnames(t), |
|---|
| 856 | attribute=[ |
|---|
| 857 | { |
|---|
| 858 | 'attribute': 'project', |
|---|
| 859 | 'value': self.allocation[aid]['project'] |
|---|
| 860 | }, |
|---|
| 861 | { |
|---|
| 862 | 'attribute': 'experiment', |
|---|
| 863 | 'value': self.allocation[aid]['experiment'] |
|---|
| 864 | }]) |
|---|
| 865 | t.elements.append(tb) |
|---|
| 866 | logv = "".join(self.allocation[aid]['log']) |
|---|
| 867 | # It's possible that the StartSegment call gets retried (!). |
|---|
| 868 | # if the 'started' key is in the allocation, we'll return it rather |
|---|
| 869 | # than redo the setup. |
|---|
| 870 | self.allocation[aid]['started'] = { |
|---|
| 871 | 'allocID': alloc_id, |
|---|
| 872 | 'allocationLog': logv, |
|---|
| 873 | 'segmentdescription': { |
|---|
| 874 | 'topdldescription': t.to_dict() |
|---|
| 875 | }, |
|---|
| 876 | 'proof': proof.to_dict(), |
|---|
| 877 | } |
|---|
| 878 | self.allocation[aid]['topo'] = t |
|---|
| 879 | retval = copy.copy(self.allocation[aid]['started']) |
|---|
| 880 | self.write_state() |
|---|
| 881 | self.state_lock.release() |
|---|
| 882 | return retval |
|---|
| 883 | |
|---|
| 884 | # End of StartSegment support routines |
|---|
| 885 | |
|---|
| 886 | def StartSegment(self, req, fid): |
|---|
| 887 | err = None # Any service_error generated after tmpdir is created |
|---|
| 888 | rv = None # Return value from segment creation |
|---|
| 889 | |
|---|
| 890 | self.log.info("StartSegment called by %s" % fid) |
|---|
| 891 | try: |
|---|
| 892 | req = req['StartSegmentRequestBody'] |
|---|
| 893 | auth_attr = req['allocID']['fedid'] |
|---|
| 894 | topref = req['segmentdescription']['topdldescription'] |
|---|
| 895 | except KeyError: |
|---|
| 896 | raise service_error(server_error.req, "Badly formed request") |
|---|
| 897 | |
|---|
| 898 | connInfo = req.get('connection', []) |
|---|
| 899 | services = req.get('service', []) |
|---|
| 900 | aid = "%s" % auth_attr |
|---|
| 901 | attrs = req.get('fedAttr', []) |
|---|
| 902 | |
|---|
| 903 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
|---|
| 904 | with_proof=True) |
|---|
| 905 | if not access_ok: |
|---|
| 906 | self.log.info("StartSegment for %s failed: access denied" % fid) |
|---|
| 907 | raise service_error(service_error.access, "Access denied") |
|---|
| 908 | else: |
|---|
| 909 | # See if this is a replay of an earlier succeeded StartSegment - |
|---|
| 910 | # sometimes SSL kills 'em. If so, replay the response rather than |
|---|
| 911 | # redoing the allocation. |
|---|
| 912 | self.state_lock.acquire() |
|---|
| 913 | retval = self.allocation[aid].get('started', None) |
|---|
| 914 | self.state_lock.release() |
|---|
| 915 | if retval: |
|---|
| 916 | self.log.warning("Duplicate StartSegment for %s: " % aid + \ |
|---|
| 917 | "replaying response") |
|---|
| 918 | return retval |
|---|
| 919 | |
|---|
| 920 | # A new request. Do it. |
|---|
| 921 | |
|---|
| 922 | if topref: topo = topdl.Topology(**topref) |
|---|
| 923 | else: |
|---|
| 924 | raise service_error(service_error.req, |
|---|
| 925 | "Request missing segmentdescription'") |
|---|
| 926 | |
|---|
| 927 | certfile = "%s/%s.pem" % (self.certdir, auth_attr) |
|---|
| 928 | try: |
|---|
| 929 | tmpdir = tempfile.mkdtemp(prefix="access-") |
|---|
| 930 | softdir = "%s/software" % tmpdir |
|---|
| 931 | os.mkdir(softdir) |
|---|
| 932 | except EnvironmentError: |
|---|
| 933 | self.log.info("StartSegment for %s failed: internal error" % fid) |
|---|
| 934 | raise service_error(service_error.internal, "Cannot create tmp dir") |
|---|
| 935 | |
|---|
| 936 | # Try block alllows us to clean up temporary files. |
|---|
| 937 | try: |
|---|
| 938 | self.retrieve_software(topo, certfile, softdir) |
|---|
| 939 | ename, proj, user, xmlrpc_cert, pubkey_base, secretkey_base, \ |
|---|
| 940 | alloc_log = self.initialize_experiment_info(attrs, aid, |
|---|
| 941 | certfile, tmpdir) |
|---|
| 942 | # A misconfigured cert in the ABAC map can be confusing... |
|---|
| 943 | if not os.access(xmlrpc_cert, os.R_OK): |
|---|
| 944 | self.log.error("Cannot open user's emulab SSL cert: %s" % \ |
|---|
| 945 | xmlrpc_cert) |
|---|
| 946 | raise service_error(service_error.internal, |
|---|
| 947 | "Cannot open user's emulab SSL cert: %s" % xmlrpc_cert) |
|---|
| 948 | |
|---|
| 949 | |
|---|
| 950 | if '/' in proj: proj, gid = proj.split('/') |
|---|
| 951 | else: gid = None |
|---|
| 952 | |
|---|
| 953 | |
|---|
| 954 | # Set up userconf and seer if needed |
|---|
| 955 | self.configure_userconf(services, tmpdir) |
|---|
| 956 | self.configure_seer_services(services, topo, softdir) |
|---|
| 957 | # Get and send synch store variables |
|---|
| 958 | self.export_store_info(certfile, proj, ename, connInfo) |
|---|
| 959 | self.import_store_info(certfile, connInfo) |
|---|
| 960 | |
|---|
| 961 | expfile = "%s/experiment.tcl" % tmpdir |
|---|
| 962 | |
|---|
| 963 | self.generate_portal_configs(topo, pubkey_base, |
|---|
| 964 | secretkey_base, tmpdir, proj, ename, connInfo, services) |
|---|
| 965 | self.generate_ns2(topo, expfile, |
|---|
| 966 | "/proj/%s/software/%s/" % (proj, ename), connInfo) |
|---|
| 967 | |
|---|
| 968 | starter = self.start_segment(keyfile=self.ssh_privkey_file, |
|---|
| 969 | debug=self.create_debug, log=alloc_log, boss=self.boss, |
|---|
| 970 | ops=self.ops, cert=xmlrpc_cert) |
|---|
| 971 | rv = starter(self, ename, proj, user, expfile, tmpdir, gid=gid) |
|---|
| 972 | except service_error, e: |
|---|
| 973 | self.log.info("StartSegment for %s failed: %s" % (fid, e)) |
|---|
| 974 | err = e |
|---|
| 975 | except: |
|---|
| 976 | t, v, st = sys.exc_info() |
|---|
| 977 | self.log.info("StartSegment for %s failed:unexpected error: %s" \ |
|---|
| 978 | % (fid, traceback.extract_tb(st))) |
|---|
| 979 | err = service_error(service_error.internal, "%s: %s" % \ |
|---|
| 980 | (v, traceback.extract_tb(st))) |
|---|
| 981 | |
|---|
| 982 | # Walk up tmpdir, deleting as we go |
|---|
| 983 | if self.cleanup: self.remove_dirs(tmpdir) |
|---|
| 984 | else: self.log.debug("[StartSegment]: not removing %s" % tmpdir) |
|---|
| 985 | |
|---|
| 986 | if rv: |
|---|
| 987 | self.log.info("StartSegment for %s succeeded" % fid) |
|---|
| 988 | return self.finalize_experiment(starter, topo, aid, req['allocID'], |
|---|
| 989 | proof) |
|---|
| 990 | elif err: |
|---|
| 991 | raise service_error(service_error.federant, |
|---|
| 992 | "Swapin failed: %s" % err) |
|---|
| 993 | else: |
|---|
| 994 | raise service_error(service_error.federant, "Swapin failed") |
|---|
| 995 | |
|---|
| 996 | def TerminateSegment(self, req, fid): |
|---|
| 997 | self.log.info("TerminateSegment called by %s" % fid) |
|---|
| 998 | try: |
|---|
| 999 | req = req['TerminateSegmentRequestBody'] |
|---|
| 1000 | except KeyError: |
|---|
| 1001 | raise service_error(server_error.req, "Badly formed request") |
|---|
| 1002 | |
|---|
| 1003 | auth_attr = req['allocID']['fedid'] |
|---|
| 1004 | aid = "%s" % auth_attr |
|---|
| 1005 | attrs = req.get('fedAttr', []) |
|---|
| 1006 | |
|---|
| 1007 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
|---|
| 1008 | with_proof=True) |
|---|
| 1009 | if not access_ok: |
|---|
| 1010 | raise service_error(service_error.access, "Access denied") |
|---|
| 1011 | |
|---|
| 1012 | self.state_lock.acquire() |
|---|
| 1013 | if aid in self.allocation: |
|---|
| 1014 | proj = self.allocation[aid].get('project', None) |
|---|
| 1015 | user = self.allocation[aid].get('user', None) |
|---|
| 1016 | xmlrpc_cert = self.allocation[aid].get('cert', None) |
|---|
| 1017 | ename = self.allocation[aid].get('experiment', None) |
|---|
| 1018 | nonce = self.allocation[aid].get('nonce', False) |
|---|
| 1019 | else: |
|---|
| 1020 | proj = None |
|---|
| 1021 | user = None |
|---|
| 1022 | ename = None |
|---|
| 1023 | nonce = False |
|---|
| 1024 | xmlrpc_cert = None |
|---|
| 1025 | self.state_lock.release() |
|---|
| 1026 | |
|---|
| 1027 | if not proj: |
|---|
| 1028 | self.log.info("TerminateSegment failed for %s: cannot find project"\ |
|---|
| 1029 | % fid) |
|---|
| 1030 | raise service_error(service_error.internal, |
|---|
| 1031 | "Can't find project for %s" % aid) |
|---|
| 1032 | else: |
|---|
| 1033 | if '/' in proj: proj, gid = proj.split('/') |
|---|
| 1034 | else: gid = None |
|---|
| 1035 | |
|---|
| 1036 | if not user: |
|---|
| 1037 | self.log.info("TerminateSegment failed for %s: cannot find user"\ |
|---|
| 1038 | % fid) |
|---|
| 1039 | raise service_error(service_error.internal, |
|---|
| 1040 | "Can't find creation user for %s" % aid) |
|---|
| 1041 | if not ename: |
|---|
| 1042 | self.log.info( |
|---|
| 1043 | "TerminateSegment failed for %s: cannot find experiment"\ |
|---|
| 1044 | % fid) |
|---|
| 1045 | raise service_error(service_error.internal, |
|---|
| 1046 | "Can't find experiment name for %s" % aid) |
|---|
| 1047 | stopper = self.stop_segment(keyfile=self.ssh_privkey_file, |
|---|
| 1048 | debug=self.create_debug, boss=self.boss, ops=self.ops, |
|---|
| 1049 | cert=xmlrpc_cert) |
|---|
| 1050 | stopper(self, user, proj, ename, gid, nonce) |
|---|
| 1051 | self.log.info("TerminateSegment succeeded for %s %s %s" % \ |
|---|
| 1052 | (fid, proj, ename)) |
|---|
| 1053 | return { 'allocID': req['allocID'], 'proof': proof.to_dict() } |
|---|
| 1054 | |
|---|
| 1055 | def InfoSegment(self, req, fid): |
|---|
| 1056 | self.log.info("InfoSegment called by %s" % fid) |
|---|
| 1057 | try: |
|---|
| 1058 | req = req['InfoSegmentRequestBody'] |
|---|
| 1059 | except KeyError: |
|---|
| 1060 | raise service_error(server_error.req, "Badly formed request") |
|---|
| 1061 | |
|---|
| 1062 | auth_attr = req['allocID']['fedid'] |
|---|
| 1063 | aid = "%s" % auth_attr |
|---|
| 1064 | |
|---|
| 1065 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
|---|
| 1066 | with_proof=True) |
|---|
| 1067 | if not access_ok: |
|---|
| 1068 | raise service_error(service_error.access, "Access denied") |
|---|
| 1069 | |
|---|
| 1070 | self.state_lock.acquire() |
|---|
| 1071 | if aid in self.allocation: |
|---|
| 1072 | topo = self.allocation[aid].get('topo', None) |
|---|
| 1073 | if topo: topo = topo.clone() |
|---|
| 1074 | proj = self.allocation[aid].get('project', None) |
|---|
| 1075 | user = self.allocation[aid].get('user', None) |
|---|
| 1076 | xmlrpc_cert = self.allocation[aid].get('cert', None) |
|---|
| 1077 | ename = self.allocation[aid].get('experiment', None) |
|---|
| 1078 | else: |
|---|
| 1079 | proj = None |
|---|
| 1080 | user = None |
|---|
| 1081 | ename = None |
|---|
| 1082 | topo = None |
|---|
| 1083 | xmlrpc_cert = None |
|---|
| 1084 | self.state_lock.release() |
|---|
| 1085 | |
|---|
| 1086 | if not proj: |
|---|
| 1087 | self.log.info("InfoSegment failed for %s: cannot find project"% fid) |
|---|
| 1088 | raise service_error(service_error.internal, |
|---|
| 1089 | "Can't find project for %s" % aid) |
|---|
| 1090 | else: |
|---|
| 1091 | if '/' in proj: proj, gid = proj.split('/') |
|---|
| 1092 | else: gid = None |
|---|
| 1093 | |
|---|
| 1094 | if not user: |
|---|
| 1095 | self.log.info("InfoSegment failed for %s: cannot find user"% fid) |
|---|
| 1096 | raise service_error(service_error.internal, |
|---|
| 1097 | "Can't find creation user for %s" % aid) |
|---|
| 1098 | if not ename: |
|---|
| 1099 | self.log.info("InfoSegment failed for %s: cannot find exp"% fid) |
|---|
| 1100 | raise service_error(service_error.internal, |
|---|
| 1101 | "Can't find experiment name for %s" % aid) |
|---|
| 1102 | info = self.info_segment(keyfile=self.ssh_privkey_file, |
|---|
| 1103 | debug=self.create_debug, boss=self.boss, ops=self.ops, |
|---|
| 1104 | cert=xmlrpc_cert) |
|---|
| 1105 | info(self, user, proj, ename) |
|---|
| 1106 | self.log.info("InfoSegment gathered info for %s %s %s %s" % \ |
|---|
| 1107 | (fid, user, proj, ename)) |
|---|
| 1108 | self.decorate_topology(info, topo) |
|---|
| 1109 | self.state_lock.acquire() |
|---|
| 1110 | if aid in self.allocation: |
|---|
| 1111 | self.allocation[aid]['topo'] = topo |
|---|
| 1112 | self.write_state() |
|---|
| 1113 | self.state_lock.release() |
|---|
| 1114 | self.log.info("InfoSegment updated info for %s %s %s %s" % \ |
|---|
| 1115 | (fid, user, proj, ename)) |
|---|
| 1116 | |
|---|
| 1117 | rv = { |
|---|
| 1118 | 'allocID': req['allocID'], |
|---|
| 1119 | 'proof': proof.to_dict(), |
|---|
| 1120 | } |
|---|
| 1121 | self.log.info("InfoSegment succeeded info for %s %s %s %s" % \ |
|---|
| 1122 | (fid, user, proj, ename)) |
|---|
| 1123 | if topo: |
|---|
| 1124 | rv['segmentdescription'] = { 'topdldescription' : topo.to_dict() } |
|---|
| 1125 | return rv |
|---|
| 1126 | |
|---|
| 1127 | def OperationSegment(self, req, fid): |
|---|
| 1128 | def get_pname(e): |
|---|
| 1129 | """ |
|---|
| 1130 | Get the physical name of a node |
|---|
| 1131 | """ |
|---|
| 1132 | if e.localname: |
|---|
| 1133 | return re.sub('\..*','', e.localname[0]) |
|---|
| 1134 | else: |
|---|
| 1135 | return None |
|---|
| 1136 | |
|---|
| 1137 | self.log.info("OperationSegment called by %s" % fid) |
|---|
| 1138 | try: |
|---|
| 1139 | req = req['OperationSegmentRequestBody'] |
|---|
| 1140 | except KeyError: |
|---|
| 1141 | raise service_error(server_error.req, "Badly formed request") |
|---|
| 1142 | |
|---|
| 1143 | auth_attr = req['allocID']['fedid'] |
|---|
| 1144 | aid = "%s" % auth_attr |
|---|
| 1145 | |
|---|
| 1146 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
|---|
| 1147 | with_proof=True) |
|---|
| 1148 | if not access_ok: |
|---|
| 1149 | self.log.info("OperationSegment failed for %s: access denied" % fid) |
|---|
| 1150 | raise service_error(service_error.access, "Access denied") |
|---|
| 1151 | |
|---|
| 1152 | op = req.get('operation', None) |
|---|
| 1153 | targets = req.get('target', None) |
|---|
| 1154 | params = req.get('parameter', None) |
|---|
| 1155 | |
|---|
| 1156 | if op is None : |
|---|
| 1157 | self.log.info("OperationSegment failed for %s: no operation" % fid) |
|---|
| 1158 | raise service_error(service_error.req, "missing operation") |
|---|
| 1159 | elif targets is None: |
|---|
| 1160 | self.log.info("OperationSegment failed for %s: no targets" % fid) |
|---|
| 1161 | raise service_error(service_error.req, "no targets") |
|---|
| 1162 | |
|---|
| 1163 | self.state_lock.acquire() |
|---|
| 1164 | if aid in self.allocation: |
|---|
| 1165 | topo = self.allocation[aid].get('topo', None) |
|---|
| 1166 | if topo: topo = topo.clone() |
|---|
| 1167 | xmlrpc_cert = self.allocation[aid].get('cert', None) |
|---|
| 1168 | else: |
|---|
| 1169 | topo = None |
|---|
| 1170 | xmlrpc_cert = None |
|---|
| 1171 | self.state_lock.release() |
|---|
| 1172 | |
|---|
| 1173 | targets = copy.copy(targets) |
|---|
| 1174 | ptargets = { } |
|---|
| 1175 | for e in topo.elements: |
|---|
| 1176 | if isinstance(e, topdl.Computer): |
|---|
| 1177 | if e.name in targets: |
|---|
| 1178 | targets.remove(e.name) |
|---|
| 1179 | pn = get_pname(e) |
|---|
| 1180 | if pn: ptargets[e.name] = pn |
|---|
| 1181 | |
|---|
| 1182 | status = [ operation_status(t, operation_status.no_target) \ |
|---|
| 1183 | for t in targets] |
|---|
| 1184 | |
|---|
| 1185 | ops = self.operation_segment(keyfile=self.ssh_privkey_file, |
|---|
| 1186 | debug=self.create_debug, boss=self.boss, ops=self.ops, |
|---|
| 1187 | cert=xmlrpc_cert) |
|---|
| 1188 | ops(self, op, ptargets, params, topo) |
|---|
| 1189 | self.log.info("OperationSegment operated for %s" % fid) |
|---|
| 1190 | |
|---|
| 1191 | status.extend(ops.status) |
|---|
| 1192 | self.log.info("OperationSegment succeed for %s" % fid) |
|---|
| 1193 | |
|---|
| 1194 | return { |
|---|
| 1195 | 'allocID': req['allocID'], |
|---|
| 1196 | 'status': [s.to_dict() for s in status], |
|---|
| 1197 | 'proof': proof.to_dict(), |
|---|
| 1198 | } |
|---|