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 | |
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14 | from threading import * |
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15 | from M2Crypto.SSL import SSLError |
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16 | |
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17 | from access import access_base |
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18 | from legacy_access import legacy_access |
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19 | |
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20 | from util import * |
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21 | from allocate_project import allocate_project_local, allocate_project_remote |
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22 | from fedid import fedid, generate_fedid |
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23 | from authorizer import authorizer, abac_authorizer |
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24 | from service_error import service_error |
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25 | from remote_service import xmlrpc_handler, soap_handler, service_caller |
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26 | from proof import proof as access_proof |
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27 | |
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28 | import httplib |
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29 | import tempfile |
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30 | from urlparse import urlparse |
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31 | |
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32 | import topdl |
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33 | import list_log |
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34 | import proxy_emulab_segment |
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35 | import local_emulab_segment |
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36 | |
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37 | |
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38 | # Make log messages disappear if noone configures a fedd logger |
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39 | class nullHandler(logging.Handler): |
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40 | def emit(self, record): pass |
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41 | |
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42 | fl = logging.getLogger("fedd.access") |
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43 | fl.addHandler(nullHandler()) |
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44 | |
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45 | class access(access_base, legacy_access): |
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46 | """ |
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47 | The implementation of access control based on mapping users to projects. |
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48 | |
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49 | Users can be mapped to existing projects or have projects created |
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50 | dynamically. This implements both direct requests and proxies. |
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51 | """ |
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52 | |
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53 | max_name_len = 19 |
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54 | |
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55 | def __init__(self, config=None, auth=None): |
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56 | """ |
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57 | Initializer. Pulls parameters out of the ConfigParser's access section. |
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58 | """ |
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59 | |
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60 | access_base.__init__(self, config, auth) |
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61 | |
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62 | self.max_name_len = access.max_name_len |
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63 | |
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64 | self.allow_proxy = config.getboolean("access", "allow_proxy") |
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65 | |
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66 | self.domain = config.get("access", "domain") |
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67 | self.userconfdir = config.get("access","userconfdir") |
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68 | self.userconfcmd = config.get("access","userconfcmd") |
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69 | self.userconfurl = config.get("access","userconfurl") |
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70 | self.federation_software = config.get("access", "federation_software") |
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71 | self.portal_software = config.get("access", "portal_software") |
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72 | self.local_seer_software = config.get("access", "local_seer_software") |
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73 | self.local_seer_image = config.get("access", "local_seer_image") |
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74 | self.local_seer_start = config.get("access", "local_seer_start") |
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75 | self.seer_master_start = config.get("access", "seer_master_start") |
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76 | self.ssh_privkey_file = config.get("access","ssh_privkey_file") |
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77 | self.ssh_pubkey_file = config.get("access","ssh_pubkey_file") |
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78 | self.ssh_port = config.get("access","ssh_port") or "22" |
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79 | self.boss = config.get("access", "boss") |
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80 | self.ops = config.get("access", "ops") |
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81 | self.xmlrpc_cert = config.get("access", "xmlrpc_cert") |
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82 | self.xmlrpc_certpw = config.get("access", "xmlrpc_certpw") |
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83 | |
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84 | self.dragon_endpoint = config.get("access", "dragon") |
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85 | self.dragon_vlans = config.get("access", "dragon_vlans") |
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86 | self.deter_internal = config.get("access", "deter_internal") |
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87 | |
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88 | self.tunnel_config = config.getboolean("access", "tunnel_config") |
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89 | self.portal_command = config.get("access", "portal_command") |
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90 | self.portal_image = config.get("access", "portal_image") |
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91 | self.portal_type = config.get("access", "portal_type") or "pc" |
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92 | self.portal_startcommand = config.get("access", "portal_startcommand") |
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93 | self.node_startcommand = config.get("access", "node_startcommand") |
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94 | |
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95 | self.federation_software = self.software_list(self.federation_software) |
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96 | self.portal_software = self.software_list(self.portal_software) |
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97 | self.local_seer_software = self.software_list(self.local_seer_software) |
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98 | |
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99 | self.access_type = self.access_type.lower() |
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100 | if self.access_type == 'remote_emulab': |
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101 | self.start_segment = proxy_emulab_segment.start_segment |
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102 | self.stop_segment = proxy_emulab_segment.stop_segment |
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103 | elif self.access_type == 'local_emulab': |
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104 | self.start_segment = local_emulab_segment.start_segment |
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105 | self.stop_segment = local_emulab_segment.stop_segment |
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106 | else: |
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107 | self.start_segment = None |
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108 | self.stop_segment = None |
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109 | |
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110 | self.restricted = [ ] |
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111 | tb = config.get('access', 'testbed') |
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112 | if tb: self.testbed = [ t.strip() for t in tb.split(',') ] |
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113 | else: self.testbed = [ ] |
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114 | |
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115 | # authorization information |
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116 | self.auth_type = config.get('access', 'auth_type') \ |
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117 | or 'legacy' |
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118 | self.auth_dir = config.get('access', 'auth_dir') |
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119 | accessdb = config.get("access", "accessdb") |
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120 | # initialize the authorization system |
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121 | if self.auth_type == 'legacy': |
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122 | self.access = { } |
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123 | if accessdb: |
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124 | self.legacy_read_access(accessdb, self.legacy_access_tuple) |
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125 | elif self.auth_type == 'abac': |
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126 | self.auth = abac_authorizer(load=self.auth_dir) |
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127 | self.access = [ ] |
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128 | if accessdb: |
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129 | self.read_access(accessdb, self.access_tuple) |
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130 | else: |
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131 | raise service_error(service_error.internal, |
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132 | "Unknown auth_type: %s" % self.auth_type) |
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133 | |
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134 | # read_state in the base_class |
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135 | self.state_lock.acquire() |
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136 | for a in ('allocation', 'projects', 'keys', 'types'): |
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137 | if a not in self.state: |
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138 | self.state[a] = { } |
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139 | self.allocation = self.state['allocation'] |
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140 | self.projects = self.state['projects'] |
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141 | self.keys = self.state['keys'] |
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142 | self.types = self.state['types'] |
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143 | if self.auth_type == "legacy": |
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144 | # Add the ownership attributes to the authorizer. Note that the |
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145 | # indices of the allocation dict are strings, but the attributes are |
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146 | # fedids, so there is a conversion. |
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147 | for k in self.allocation.keys(): |
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148 | for o in self.allocation[k].get('owners', []): |
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149 | self.auth.set_attribute(o, fedid(hexstr=k)) |
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150 | if self.allocation[k].has_key('userconfig'): |
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151 | sfid = self.allocation[k]['userconfig'] |
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152 | fid = fedid(hexstr=sfid) |
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153 | self.auth.set_attribute(fid, "/%s" % sfid) |
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154 | self.state_lock.release() |
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155 | self.exports = { |
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156 | 'SMB': self.export_SMB, |
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157 | 'seer': self.export_seer, |
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158 | 'tmcd': self.export_tmcd, |
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159 | 'userconfig': self.export_userconfig, |
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160 | 'project_export': self.export_project_export, |
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161 | 'local_seer_control': self.export_local_seer, |
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162 | 'seer_master': self.export_seer_master, |
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163 | 'hide_hosts': self.export_hide_hosts, |
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164 | } |
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165 | |
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166 | if not self.local_seer_image or not self.local_seer_software or \ |
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167 | not self.local_seer_start: |
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168 | if 'local_seer_control' in self.exports: |
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169 | del self.exports['local_seer_control'] |
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170 | |
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171 | if not self.local_seer_image or not self.local_seer_software or \ |
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172 | not self.seer_master_start: |
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173 | if 'seer_master' in self.exports: |
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174 | del self.exports['seer_master'] |
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175 | |
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176 | |
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177 | self.soap_services = {\ |
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178 | 'RequestAccess': soap_handler("RequestAccess", self.RequestAccess), |
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179 | 'ReleaseAccess': soap_handler("ReleaseAccess", self.ReleaseAccess), |
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180 | 'StartSegment': soap_handler("StartSegment", self.StartSegment), |
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181 | 'TerminateSegment': soap_handler("TerminateSegment", |
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182 | self.TerminateSegment), |
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183 | } |
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184 | self.xmlrpc_services = {\ |
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185 | 'RequestAccess': xmlrpc_handler('RequestAccess', |
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186 | self.RequestAccess), |
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187 | 'ReleaseAccess': xmlrpc_handler('ReleaseAccess', |
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188 | self.ReleaseAccess), |
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189 | 'StartSegment': xmlrpc_handler("StartSegment", self.StartSegment), |
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190 | 'TerminateSegment': xmlrpc_handler('TerminateSegment', |
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191 | self.TerminateSegment), |
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192 | } |
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193 | |
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194 | self.call_SetValue = service_caller('SetValue') |
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195 | self.call_GetValue = service_caller('GetValue', log=self.log) |
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196 | |
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197 | if not config.has_option("allocate", "uri"): |
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198 | self.allocate_project = \ |
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199 | allocate_project_local(config, auth) |
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200 | else: |
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201 | self.allocate_project = \ |
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202 | allocate_project_remote(config, auth) |
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203 | |
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204 | |
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205 | # If the project allocator exports services, put them in this object's |
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206 | # maps so that classes that instantiate this can call the services. |
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207 | self.soap_services.update(self.allocate_project.soap_services) |
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208 | self.xmlrpc_services.update(self.allocate_project.xmlrpc_services) |
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209 | |
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210 | @staticmethod |
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211 | def legacy_access_tuple(str): |
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212 | """ |
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213 | Convert a string of the form (id[:resources:resouces], id, id) into a |
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214 | tuple of the form (project, user, user) where users may be names or |
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215 | fedids. The resources strings are obsolete and ignored. |
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216 | """ |
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217 | def parse_name(n): |
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218 | if n.startswith('fedid:'): return fedid(hexstr=n[len('fedid:'):]) |
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219 | else: return n |
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220 | |
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221 | str = str.strip() |
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222 | if str.startswith('(') and str.endswith(')'): |
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223 | str = str[1:-1] |
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224 | names = [ s.strip() for s in str.split(",")] |
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225 | if len(names) > 3: |
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226 | raise self.parse_error("More than three fields in name") |
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227 | first = names[0].split(":") |
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228 | if first == 'fedid:': |
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229 | del first[0] |
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230 | first[0] = fedid(hexstr=first[0]) |
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231 | names[0] = first[0] |
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232 | |
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233 | for i in range(1,2): |
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234 | names[i] = parse_name(names[i]) |
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235 | |
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236 | return tuple(names) |
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237 | else: |
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238 | raise self.parse_error('Bad mapping (unbalanced parens)') |
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239 | |
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240 | @staticmethod |
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241 | def access_tuple(str): |
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242 | """ |
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243 | Convert a string of the form (id, id) into an access_project. This is |
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244 | called by read_access to convert to local attributes. It returns |
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245 | a tuple of the form (project, user, user) where the two users are |
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246 | always the same. |
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247 | """ |
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248 | |
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249 | str = str.strip() |
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250 | if str.startswith('(') and str.endswith(')') and str.count(',') == 1: |
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251 | # The slice takes the parens off the string. |
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252 | proj, user = str[1:-1].split(',') |
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253 | return (proj.strip(), user.strip(), user.strip()) |
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254 | else: |
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255 | raise self.parse_error( |
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256 | 'Bad mapping (unbalanced parens or more than 1 comma)') |
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257 | |
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258 | # RequestAccess support routines |
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259 | |
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260 | def legacy_lookup_access(self, req, fid): |
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261 | """ |
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262 | Look up the local access control information mapped to this fedid and |
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263 | credentials. In this case it is a (project, create_user, access_user) |
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264 | triple, and a triple of three booleans indicating which, if any will |
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265 | need to be dynamically created. Finally a list of owners for that |
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266 | allocation is returned. |
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267 | |
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268 | lookup_access_base pulls the first triple out, and it is parsed by this |
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269 | routine into the boolean map. Owners is always the controlling fedid. |
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270 | """ |
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271 | # Return values |
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272 | rp = None |
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273 | ru = None |
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274 | # This maps a valid user to the Emulab projects and users to use |
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275 | found, match = self.legacy_lookup_access_base(req, fid) |
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276 | tb, project, user = match |
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277 | |
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278 | if found == None: |
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279 | raise service_error(service_error.access, |
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280 | "Access denied - cannot map access") |
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281 | |
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282 | # resolve <dynamic> and <same> in found |
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283 | dyn_proj = False |
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284 | dyn_create_user = False |
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285 | dyn_service_user = False |
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286 | |
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287 | if found[0] == "<same>": |
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288 | if project != None: |
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289 | rp = project |
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290 | else : |
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291 | raise service_error(\ |
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292 | service_error.server_config, |
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293 | "Project matched <same> when no project given") |
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294 | elif found[0] == "<dynamic>": |
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295 | rp = None |
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296 | dyn_proj = True |
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297 | else: |
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298 | rp = found[0] |
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299 | |
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300 | if found[1] == "<same>": |
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301 | if user_match == "<any>": |
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302 | if user != None: rcu = user[0] |
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303 | else: raise service_error(\ |
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304 | service_error.server_config, |
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305 | "Matched <same> on anonymous request") |
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306 | else: |
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307 | rcu = user_match |
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308 | elif found[1] == "<dynamic>": |
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309 | rcu = None |
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310 | dyn_create_user = True |
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311 | else: |
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312 | rcu = found[1] |
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313 | |
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314 | if found[2] == "<same>": |
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315 | if user_match == "<any>": |
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316 | if user != None: rsu = user[0] |
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317 | else: raise service_error(\ |
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318 | service_error.server_config, |
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319 | "Matched <same> on anonymous request") |
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320 | else: |
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321 | rsu = user_match |
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322 | elif found[2] == "<dynamic>": |
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323 | rsu = None |
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324 | dyn_service_user = True |
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325 | else: |
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326 | rsu = found[2] |
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327 | |
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328 | return (rp, rcu, rsu), (dyn_create_user, dyn_service_user, dyn_proj),\ |
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329 | [ fid ] |
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330 | |
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331 | def do_project_allocation(self, dyn, project, user): |
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332 | """ |
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333 | Call the project allocation routines and return the info. |
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334 | """ |
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335 | if dyn: |
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336 | # Compose the dynamic project request |
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337 | # (only dynamic, dynamic currently allowed) |
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338 | preq = { 'AllocateProjectRequestBody': \ |
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339 | { 'project' : {\ |
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340 | 'user': [ \ |
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341 | { \ |
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342 | 'access': [ { |
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343 | 'sshPubkey': self.ssh_pubkey_file } ], |
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344 | 'role': "serviceAccess",\ |
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345 | }, \ |
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346 | { \ |
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347 | 'access': [ { |
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348 | 'sshPubkey': self.ssh_pubkey_file } ], |
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349 | 'role': "experimentCreation",\ |
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350 | }, \ |
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351 | ], \ |
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352 | }\ |
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353 | }\ |
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354 | } |
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355 | return self.allocate_project.dynamic_project(preq) |
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356 | else: |
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357 | preq = {'StaticProjectRequestBody' : \ |
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358 | { 'project': \ |
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359 | { 'name' : { 'localname' : project },\ |
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360 | 'user' : [ \ |
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361 | {\ |
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362 | 'userID': { 'localname' : user }, \ |
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363 | 'access': [ { |
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364 | 'sshPubkey': self.ssh_pubkey_file } ], |
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365 | 'role': 'experimentCreation'\ |
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366 | },\ |
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367 | {\ |
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368 | 'userID': { 'localname' : user}, \ |
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369 | 'access': [ { |
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370 | 'sshPubkey': self.ssh_pubkey_file } ], |
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371 | 'role': 'serviceAccess'\ |
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372 | },\ |
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373 | ]}\ |
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374 | }\ |
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375 | } |
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376 | return self.allocate_project.static_project(preq) |
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377 | |
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378 | def save_project_state(self, aid, ap, dyn, owners): |
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379 | """ |
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380 | Parse out and save the information relevant to the project created for |
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381 | this experiment. That info is largely in ap and owners. dyn indicates |
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382 | that the project was created dynamically. Return the user and project |
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383 | names. |
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384 | """ |
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385 | self.state_lock.acquire() |
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386 | self.allocation[aid] = { } |
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387 | self.allocation[aid]['auth'] = set() |
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388 | try: |
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389 | pname = ap['project']['name']['localname'] |
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390 | except KeyError: |
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391 | pname = None |
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392 | |
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393 | if dyn: |
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394 | if not pname: |
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395 | self.state_lock.release() |
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396 | raise service_error(service_error.internal, |
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397 | "Misformed allocation response?") |
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398 | if pname in self.projects: self.projects[pname] += 1 |
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399 | else: self.projects[pname] = 1 |
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400 | self.allocation[aid]['project'] = pname |
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401 | else: |
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402 | # sproject is a static project associated with this allocation. |
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403 | self.allocation[aid]['sproject'] = pname |
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404 | |
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405 | self.allocation[aid]['keys'] = [ ] |
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406 | |
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407 | try: |
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408 | for u in ap['project']['user']: |
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409 | uname = u['userID']['localname'] |
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410 | if u['role'] == 'experimentCreation': |
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411 | self.allocation[aid]['user'] = uname |
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412 | for k in [ k['sshPubkey'] for k in u['access'] \ |
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413 | if k.has_key('sshPubkey') ]: |
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414 | kv = "%s:%s" % (uname, k) |
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415 | if self.keys.has_key(kv): self.keys[kv] += 1 |
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416 | else: self.keys[kv] = 1 |
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417 | self.allocation[aid]['keys'].append((uname, k)) |
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418 | except KeyError: |
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419 | self.state_lock.release() |
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420 | raise service_error(service_error.internal, |
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421 | "Misformed allocation response?") |
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422 | |
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423 | self.allocation[aid]['owners'] = owners |
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424 | self.write_state() |
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425 | self.state_lock.release() |
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426 | return (pname, uname) |
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427 | |
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428 | # End of RequestAccess support routines |
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429 | |
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430 | def RequestAccess(self, req, fid): |
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431 | """ |
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432 | Handle the access request. Proxy if not for us. |
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433 | |
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434 | Parse out the fields and make the allocations or rejections if for us, |
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435 | otherwise, assuming we're willing to proxy, proxy the request out. |
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436 | """ |
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437 | |
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438 | def gateway_hardware(h): |
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439 | if h == 'GWTYPE': return self.portal_type or 'GWTYPE' |
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440 | else: return h |
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441 | |
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442 | def get_export_project(svcs): |
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443 | """ |
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444 | if the service requests includes one to export a project, return |
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445 | that project. |
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446 | """ |
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447 | rv = None |
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448 | for s in svcs: |
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449 | if s.get('name', '') == 'project_export' and \ |
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450 | s.get('visibility', '') == 'export': |
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451 | if not rv: |
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452 | for a in s.get('fedAttr', []): |
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453 | if a.get('attribute', '') == 'project' \ |
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454 | and 'value' in a: |
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455 | rv = a['value'] |
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456 | else: |
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457 | raise service_error(service_error, access, |
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458 | 'Requesting multiple project exports is ' + \ |
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459 | 'not supported'); |
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460 | return rv |
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461 | |
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462 | # The dance to get into the request body |
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463 | if req.has_key('RequestAccessRequestBody'): |
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464 | req = req['RequestAccessRequestBody'] |
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465 | else: |
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466 | raise service_error(service_error.req, "No request!?") |
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467 | |
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468 | # if this includes a project export request, construct a filter such |
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469 | # that only the ABAC attributes mapped to that project are checked for |
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470 | # access. |
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471 | if 'service' in req: |
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472 | ep = get_export_project(req['service']) |
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473 | if ep: pf = lambda(a): a.value[0] == ep |
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474 | else: pf = None |
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475 | else: |
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476 | ep = None |
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477 | pf = None |
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478 | |
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479 | if self.auth.import_credentials( |
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480 | data_list=req.get('abac_credential', [])): |
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481 | self.auth.save() |
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482 | |
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483 | if self.auth_type == "legacy": |
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484 | found, dyn, owners= self.legacy_lookup_access(req, fid) |
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485 | proof = access_proof("me", fid, "create") |
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486 | elif self.auth_type == 'abac': |
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487 | found, dyn, owners, proof = self.lookup_access(req, fid, filter=pf) |
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488 | else: |
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489 | raise service_error(service_error.internal, |
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490 | 'Unknown auth_type: %s' % self.auth_type) |
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491 | ap = None |
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492 | |
---|
493 | # This only happens in legacy lookups, but if this user has access to |
---|
494 | # the testbed but not the project to be exported, raise the error. |
---|
495 | if ep and ep != found[0]: |
---|
496 | raise service_error(service_error.access, |
---|
497 | "Cannot export %s" % ep) |
---|
498 | |
---|
499 | if self.ssh_pubkey_file: |
---|
500 | ap = self.do_project_allocation(dyn[1], found[0], found[1]) |
---|
501 | else: |
---|
502 | raise service_error(service_error.internal, |
---|
503 | "SSH access parameters required") |
---|
504 | # keep track of what's been added |
---|
505 | allocID, alloc_cert = generate_fedid(subj="alloc", log=self.log) |
---|
506 | aid = unicode(allocID) |
---|
507 | |
---|
508 | pname, uname = self.save_project_state(aid, ap, dyn[1], owners) |
---|
509 | |
---|
510 | services, svc_state = self.export_services(req.get('service',[]), |
---|
511 | pname, uname) |
---|
512 | self.state_lock.acquire() |
---|
513 | # Store services state in global state |
---|
514 | for k, v in svc_state.items(): |
---|
515 | self.allocation[aid][k] = v |
---|
516 | self.append_allocation_authorization(aid, |
---|
517 | set([(o, allocID) for o in owners]), state_attr='allocation') |
---|
518 | self.write_state() |
---|
519 | self.state_lock.release() |
---|
520 | try: |
---|
521 | f = open("%s/%s.pem" % (self.certdir, aid), "w") |
---|
522 | print >>f, alloc_cert |
---|
523 | f.close() |
---|
524 | except EnvironmentError, e: |
---|
525 | raise service_error(service_error.internal, |
---|
526 | "Can't open %s/%s : %s" % (self.certdir, aid, e)) |
---|
527 | resp = self.build_access_response({ 'fedid': allocID } , |
---|
528 | ap, services, proof) |
---|
529 | return resp |
---|
530 | |
---|
531 | def do_release_project(self, del_project, del_users, del_types): |
---|
532 | """ |
---|
533 | If a project and users has to be deleted, make the call. |
---|
534 | """ |
---|
535 | msg = { 'project': { }} |
---|
536 | if del_project: |
---|
537 | msg['project']['name']= {'localname': del_project} |
---|
538 | users = [ ] |
---|
539 | for u in del_users.keys(): |
---|
540 | users.append({ 'userID': { 'localname': u },\ |
---|
541 | 'access' : \ |
---|
542 | [ {'sshPubkey' : s } for s in del_users[u]]\ |
---|
543 | }) |
---|
544 | if users: |
---|
545 | msg['project']['user'] = users |
---|
546 | if len(del_types) > 0: |
---|
547 | msg['resources'] = { 'node': \ |
---|
548 | [ {'hardware': [ h ] } for h in del_types ]\ |
---|
549 | } |
---|
550 | if self.allocate_project.release_project: |
---|
551 | msg = { 'ReleaseProjectRequestBody' : msg} |
---|
552 | self.allocate_project.release_project(msg) |
---|
553 | |
---|
554 | def ReleaseAccess(self, req, fid): |
---|
555 | # The dance to get into the request body |
---|
556 | if req.has_key('ReleaseAccessRequestBody'): |
---|
557 | req = req['ReleaseAccessRequestBody'] |
---|
558 | else: |
---|
559 | raise service_error(service_error.req, "No request!?") |
---|
560 | |
---|
561 | try: |
---|
562 | if req['allocID'].has_key('localname'): |
---|
563 | auth_attr = aid = req['allocID']['localname'] |
---|
564 | elif req['allocID'].has_key('fedid'): |
---|
565 | aid = unicode(req['allocID']['fedid']) |
---|
566 | auth_attr = req['allocID']['fedid'] |
---|
567 | else: |
---|
568 | raise service_error(service_error.req, |
---|
569 | "Only localnames and fedids are understood") |
---|
570 | except KeyError: |
---|
571 | raise service_error(service_error.req, "Badly formed request") |
---|
572 | |
---|
573 | self.log.debug("[access] deallocation requested for %s by %s" % \ |
---|
574 | (aid, fid)) |
---|
575 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
---|
576 | with_proof=True) |
---|
577 | if not access_ok: |
---|
578 | self.log.debug("[access] deallocation denied for %s", aid) |
---|
579 | raise service_error(service_error.access, "Access Denied") |
---|
580 | |
---|
581 | # If we know this allocation, reduce the reference counts and |
---|
582 | # remove the local allocations. Otherwise report an error. If |
---|
583 | # there is an allocation to delete, del_users will be a dictonary |
---|
584 | # of sets where the key is the user that owns the keys in the set. |
---|
585 | # We use a set to avoid duplicates. del_project is just the name |
---|
586 | # of any dynamic project to delete. We're somewhat lazy about |
---|
587 | # deleting authorization attributes. Having access to something |
---|
588 | # that doesn't exist isn't harmful. |
---|
589 | del_users = { } |
---|
590 | del_project = None |
---|
591 | del_types = set() |
---|
592 | |
---|
593 | self.state_lock.acquire() |
---|
594 | if aid in self.allocation: |
---|
595 | self.log.debug("Found allocation for %s" %aid) |
---|
596 | self.clear_allocation_authorization(aid, state_attr='allocation') |
---|
597 | for k in self.allocation[aid]['keys']: |
---|
598 | kk = "%s:%s" % k |
---|
599 | self.keys[kk] -= 1 |
---|
600 | if self.keys[kk] == 0: |
---|
601 | if not del_users.has_key(k[0]): |
---|
602 | del_users[k[0]] = set() |
---|
603 | del_users[k[0]].add(k[1]) |
---|
604 | del self.keys[kk] |
---|
605 | |
---|
606 | if 'project' in self.allocation[aid]: |
---|
607 | pname = self.allocation[aid]['project'] |
---|
608 | self.projects[pname] -= 1 |
---|
609 | if self.projects[pname] == 0: |
---|
610 | del_project = pname |
---|
611 | del self.projects[pname] |
---|
612 | |
---|
613 | if 'types' in self.allocation[aid]: |
---|
614 | for t in self.allocation[aid]['types']: |
---|
615 | self.types[t] -= 1 |
---|
616 | if self.types[t] == 0: |
---|
617 | if not del_project: del_project = t[0] |
---|
618 | del_types.add(t[1]) |
---|
619 | del self.types[t] |
---|
620 | |
---|
621 | del self.allocation[aid] |
---|
622 | self.write_state() |
---|
623 | self.state_lock.release() |
---|
624 | # If we actually have resources to deallocate, prepare the call. |
---|
625 | if del_project or del_users: |
---|
626 | self.do_release_project(del_project, del_users, del_types) |
---|
627 | # And remove the access cert |
---|
628 | cf = "%s/%s.pem" % (self.certdir, aid) |
---|
629 | self.log.debug("Removing %s" % cf) |
---|
630 | os.remove(cf) |
---|
631 | return { 'allocID': req['allocID'], 'proof': proof.to_dict() } |
---|
632 | else: |
---|
633 | self.state_lock.release() |
---|
634 | raise service_error(service_error.req, "No such allocation") |
---|
635 | |
---|
636 | # These are subroutines for StartSegment |
---|
637 | def generate_ns2(self, topo, expfn, softdir, connInfo): |
---|
638 | """ |
---|
639 | Convert topo into an ns2 file, decorated with appropriate commands for |
---|
640 | the particular testbed setup. Convert all requests for software, etc |
---|
641 | to point at the staged copies on this testbed and add the federation |
---|
642 | startcommands. |
---|
643 | """ |
---|
644 | class dragon_commands: |
---|
645 | """ |
---|
646 | Functor to spit out approrpiate dragon commands for nodes listed in |
---|
647 | the connectivity description. The constructor makes a dict mapping |
---|
648 | dragon nodes to their parameters and the __call__ checks each |
---|
649 | element in turn for membership. |
---|
650 | """ |
---|
651 | def __init__(self, map): |
---|
652 | self.node_info = map |
---|
653 | |
---|
654 | def __call__(self, e): |
---|
655 | s = "" |
---|
656 | if isinstance(e, topdl.Computer): |
---|
657 | if self.node_info.has_key(e.name): |
---|
658 | info = self.node_info[e.name] |
---|
659 | for ifname, vlan, type in info: |
---|
660 | for i in e.interface: |
---|
661 | if i.name == ifname: |
---|
662 | addr = i.get_attribute('ip4_address') |
---|
663 | subs = i.substrate[0] |
---|
664 | break |
---|
665 | else: |
---|
666 | raise service_error(service_error.internal, |
---|
667 | "No interface %s on element %s" % \ |
---|
668 | (ifname, e.name)) |
---|
669 | # XXX: do netmask right |
---|
670 | if type =='link': |
---|
671 | s = ("tb-allow-external ${%s} " + \ |
---|
672 | "dragonportal ip %s vlan %s " + \ |
---|
673 | "netmask 255.255.255.0\n") % \ |
---|
674 | (topdl.to_tcl_name(e.name), addr, vlan) |
---|
675 | elif type =='lan': |
---|
676 | s = ("tb-allow-external ${%s} " + \ |
---|
677 | "dragonportal " + \ |
---|
678 | "ip %s vlan %s usurp %s\n") % \ |
---|
679 | (topdl.to_tcl_name(e.name), addr, |
---|
680 | vlan, subs) |
---|
681 | else: |
---|
682 | raise service_error(service_error_internal, |
---|
683 | "Unknown DRAGON type %s" % type) |
---|
684 | return s |
---|
685 | |
---|
686 | class not_dragon: |
---|
687 | """ |
---|
688 | Return true if a node is in the given map of dragon nodes. |
---|
689 | """ |
---|
690 | def __init__(self, map): |
---|
691 | self.nodes = set(map.keys()) |
---|
692 | |
---|
693 | def __call__(self, e): |
---|
694 | return e.name not in self.nodes |
---|
695 | |
---|
696 | # Main line of generate_ns2 |
---|
697 | t = topo.clone() |
---|
698 | |
---|
699 | # Create the map of nodes that need direct connections (dragon |
---|
700 | # connections) from the connInfo |
---|
701 | dragon_map = { } |
---|
702 | for i in [ i for i in connInfo if i['type'] == 'transit']: |
---|
703 | for a in i.get('fedAttr', []): |
---|
704 | if a['attribute'] == 'vlan_id': |
---|
705 | vlan = a['value'] |
---|
706 | break |
---|
707 | else: |
---|
708 | raise service_error(service_error.internal, "No vlan tag") |
---|
709 | members = i.get('member', []) |
---|
710 | if len(members) > 1: type = 'lan' |
---|
711 | else: type = 'link' |
---|
712 | |
---|
713 | try: |
---|
714 | for m in members: |
---|
715 | if m['element'] in dragon_map: |
---|
716 | dragon_map[m['element']].append(( m['interface'], |
---|
717 | vlan, type)) |
---|
718 | else: |
---|
719 | dragon_map[m['element']] = [( m['interface'], |
---|
720 | vlan, type),] |
---|
721 | except KeyError: |
---|
722 | raise service_error(service_error.req, |
---|
723 | "Missing connectivity info") |
---|
724 | |
---|
725 | # Weed out the things we aren't going to instantiate: Segments, portal |
---|
726 | # substrates, and portal interfaces. (The copy in the for loop allows |
---|
727 | # us to delete from e.elements in side the for loop). While we're |
---|
728 | # touching all the elements, we also adjust paths from the original |
---|
729 | # testbed to local testbed paths and put the federation commands into |
---|
730 | # the start commands |
---|
731 | for e in [e for e in t.elements]: |
---|
732 | if isinstance(e, topdl.Segment): |
---|
733 | t.elements.remove(e) |
---|
734 | if isinstance(e, topdl.Computer): |
---|
735 | self.add_kit(e, self.federation_software) |
---|
736 | if e.get_attribute('portal') and self.portal_startcommand: |
---|
737 | # Add local portal support software |
---|
738 | self.add_kit(e, self.portal_software) |
---|
739 | # Portals never have a user-specified start command |
---|
740 | e.set_attribute('startup', self.portal_startcommand) |
---|
741 | elif self.node_startcommand: |
---|
742 | if e.get_attribute('startup'): |
---|
743 | e.set_attribute('startup', "%s \\$USER '%s'" % \ |
---|
744 | (self.node_startcommand, |
---|
745 | e.get_attribute('startup'))) |
---|
746 | else: |
---|
747 | e.set_attribute('startup', self.node_startcommand) |
---|
748 | |
---|
749 | dinf = [i[0] for i in dragon_map.get(e.name, []) ] |
---|
750 | # Remove portal interfaces that do not connect to DRAGON |
---|
751 | e.interface = [i for i in e.interface \ |
---|
752 | if not i.get_attribute('portal') or i.name in dinf ] |
---|
753 | # Fix software paths |
---|
754 | for s in getattr(e, 'software', []): |
---|
755 | s.location = re.sub("^.*/", softdir, s.location) |
---|
756 | |
---|
757 | t.substrates = [ s.clone() for s in t.substrates ] |
---|
758 | t.incorporate_elements() |
---|
759 | |
---|
760 | # Customize the ns2 output for local portal commands and images |
---|
761 | filters = [] |
---|
762 | |
---|
763 | if self.dragon_endpoint: |
---|
764 | add_filter = not_dragon(dragon_map) |
---|
765 | filters.append(dragon_commands(dragon_map)) |
---|
766 | else: |
---|
767 | add_filter = None |
---|
768 | |
---|
769 | if self.portal_command: |
---|
770 | filters.append(topdl.generate_portal_command_filter( |
---|
771 | self.portal_command, add_filter=add_filter)) |
---|
772 | |
---|
773 | if self.portal_image: |
---|
774 | filters.append(topdl.generate_portal_image_filter( |
---|
775 | self.portal_image)) |
---|
776 | |
---|
777 | if self.portal_type: |
---|
778 | filters.append(topdl.generate_portal_hardware_filter( |
---|
779 | self.portal_type)) |
---|
780 | |
---|
781 | # Convert to ns and write it out |
---|
782 | expfile = topdl.topology_to_ns2(t, filters) |
---|
783 | try: |
---|
784 | f = open(expfn, "w") |
---|
785 | print >>f, expfile |
---|
786 | f.close() |
---|
787 | except EnvironmentError: |
---|
788 | raise service_error(service_error.internal, |
---|
789 | "Cannot write experiment file %s: %s" % (expfn,e)) |
---|
790 | |
---|
791 | def export_store_info(self, cf, proj, ename, connInfo): |
---|
792 | """ |
---|
793 | For the export requests in the connection info, install the peer names |
---|
794 | at the experiment controller via SetValue calls. |
---|
795 | """ |
---|
796 | |
---|
797 | for c in connInfo: |
---|
798 | for p in [ p for p in c.get('parameter', []) \ |
---|
799 | if p.get('type', '') == 'output']: |
---|
800 | |
---|
801 | if p.get('name', '') == 'peer': |
---|
802 | k = p.get('key', None) |
---|
803 | surl = p.get('store', None) |
---|
804 | if surl and k and k.index('/') != -1: |
---|
805 | value = "%s.%s.%s%s" % \ |
---|
806 | (k[k.index('/')+1:], ename, proj, self.domain) |
---|
807 | req = { 'name': k, 'value': value } |
---|
808 | self.log.debug("Setting %s to %s on %s" % \ |
---|
809 | (k, value, surl)) |
---|
810 | self.call_SetValue(surl, req, cf) |
---|
811 | else: |
---|
812 | self.log.error("Bad export request: %s" % p) |
---|
813 | elif p.get('name', '') == 'ssh_port': |
---|
814 | k = p.get('key', None) |
---|
815 | surl = p.get('store', None) |
---|
816 | if surl and k: |
---|
817 | req = { 'name': k, 'value': self.ssh_port } |
---|
818 | self.log.debug("Setting %s to %s on %s" % \ |
---|
819 | (k, self.ssh_port, surl)) |
---|
820 | self.call_SetValue(surl, req, cf) |
---|
821 | else: |
---|
822 | self.log.error("Bad export request: %s" % p) |
---|
823 | else: |
---|
824 | self.log.error("Unknown export parameter: %s" % \ |
---|
825 | p.get('name')) |
---|
826 | continue |
---|
827 | |
---|
828 | def add_seer_node(self, topo, name, startup): |
---|
829 | """ |
---|
830 | Add a seer node to the given topology, with the startup command passed |
---|
831 | in. Used by configure seer_services. |
---|
832 | """ |
---|
833 | c_node = topdl.Computer( |
---|
834 | name=name, |
---|
835 | os= topdl.OperatingSystem( |
---|
836 | attribute=[ |
---|
837 | { 'attribute': 'osid', |
---|
838 | 'value': self.local_seer_image }, |
---|
839 | ]), |
---|
840 | attribute=[ |
---|
841 | { 'attribute': 'startup', 'value': startup }, |
---|
842 | ] |
---|
843 | ) |
---|
844 | self.add_kit(c_node, self.local_seer_software) |
---|
845 | topo.elements.append(c_node) |
---|
846 | |
---|
847 | def configure_seer_services(self, services, topo, softdir): |
---|
848 | """ |
---|
849 | Make changes to the topology required for the seer requests being made. |
---|
850 | Specifically, add any control or master nodes required and set up the |
---|
851 | start commands on the nodes to interconnect them. |
---|
852 | """ |
---|
853 | local_seer = False # True if we need to add a control node |
---|
854 | collect_seer = False # True if there is a seer-master node |
---|
855 | seer_master= False # True if we need to add the seer-master |
---|
856 | for s in services: |
---|
857 | s_name = s.get('name', '') |
---|
858 | s_vis = s.get('visibility','') |
---|
859 | |
---|
860 | if s_name == 'local_seer_control' and s_vis == 'export': |
---|
861 | local_seer = True |
---|
862 | elif s_name == 'seer_master': |
---|
863 | if s_vis == 'import': |
---|
864 | collect_seer = True |
---|
865 | elif s_vis == 'export': |
---|
866 | seer_master = True |
---|
867 | |
---|
868 | # We've got the whole picture now, so add nodes if needed and configure |
---|
869 | # them to interconnect properly. |
---|
870 | if local_seer or seer_master: |
---|
871 | # Copy local seer control node software to the tempdir |
---|
872 | for l, f in self.local_seer_software: |
---|
873 | base = os.path.basename(f) |
---|
874 | copy_file(f, "%s/%s" % (softdir, base)) |
---|
875 | # If we're collecting seers somewhere the controllers need to talk to |
---|
876 | # the master. In testbeds that export the service, that will be a |
---|
877 | # local node that we'll add below. Elsewhere it will be the control |
---|
878 | # portal that will port forward to the exporting master. |
---|
879 | if local_seer: |
---|
880 | if collect_seer: |
---|
881 | startup = "%s -C %s" % (self.local_seer_start, "seer-master") |
---|
882 | else: |
---|
883 | startup = self.local_seer_start |
---|
884 | self.add_seer_node(topo, 'control', startup) |
---|
885 | # If this is the seer master, add that node, too. |
---|
886 | if seer_master: |
---|
887 | self.add_seer_node(topo, 'seer-master', |
---|
888 | "%s -R -n -R seer-master -R -A -R sink" % \ |
---|
889 | self.seer_master_start) |
---|
890 | |
---|
891 | def retrieve_software(self, topo, certfile, softdir): |
---|
892 | """ |
---|
893 | Collect the software that nodes in the topology need loaded and stage |
---|
894 | it locally. This implies retrieving it from the experiment_controller |
---|
895 | and placing it into softdir. Certfile is used to prove that this node |
---|
896 | has access to that data (it's the allocation/segment fedid). Finally |
---|
897 | local portal and federation software is also copied to the same staging |
---|
898 | directory for simplicity - all software needed for experiment creation |
---|
899 | is in softdir. |
---|
900 | """ |
---|
901 | sw = set() |
---|
902 | for e in topo.elements: |
---|
903 | for s in getattr(e, 'software', []): |
---|
904 | sw.add(s.location) |
---|
905 | for s in sw: |
---|
906 | self.log.debug("Retrieving %s" % s) |
---|
907 | try: |
---|
908 | get_url(s, certfile, softdir) |
---|
909 | except: |
---|
910 | t, v, st = sys.exc_info() |
---|
911 | raise service_error(service_error.internal, |
---|
912 | "Error retrieving %s: %s" % (s, v)) |
---|
913 | |
---|
914 | # Copy local federation and portal node software to the tempdir |
---|
915 | for s in (self.federation_software, self.portal_software): |
---|
916 | for l, f in s: |
---|
917 | base = os.path.basename(f) |
---|
918 | copy_file(f, "%s/%s" % (softdir, base)) |
---|
919 | |
---|
920 | |
---|
921 | def initialize_experiment_info(self, attrs, aid, certfile, tmpdir): |
---|
922 | """ |
---|
923 | Gather common configuration files, retrieve or create an experiment |
---|
924 | name and project name, and return the ssh_key filenames. Create an |
---|
925 | allocation log bound to the state log variable as well. |
---|
926 | """ |
---|
927 | configs = ('hosts', 'ssh_pubkey', 'ssh_secretkey', |
---|
928 | 'seer_ca_pem', 'seer_node_pem') |
---|
929 | ename = None |
---|
930 | pubkey_base = None |
---|
931 | secretkey_base = None |
---|
932 | proj = None |
---|
933 | user = None |
---|
934 | alloc_log = None |
---|
935 | nonce_experiment = False |
---|
936 | vchars_re = '[^' + string.ascii_letters + string.digits + '-]' |
---|
937 | |
---|
938 | self.state_lock.acquire() |
---|
939 | if aid in self.allocation: |
---|
940 | proj = self.allocation[aid].get('project', None) |
---|
941 | if not proj: |
---|
942 | proj = self.allocation[aid].get('sproject', None) |
---|
943 | self.state_lock.release() |
---|
944 | |
---|
945 | if not proj: |
---|
946 | raise service_error(service_error.internal, |
---|
947 | "Can't find project for %s" %aid) |
---|
948 | |
---|
949 | for a in attrs: |
---|
950 | if a['attribute'] in configs: |
---|
951 | try: |
---|
952 | self.log.debug("Retrieving %s from %s" % \ |
---|
953 | (a['attribute'], a['value'])) |
---|
954 | get_url(a['value'], certfile, tmpdir) |
---|
955 | except: |
---|
956 | t, v, st = sys.exc_info() |
---|
957 | raise service_error(service_error.internal, |
---|
958 | "Error retrieving %s: %s" % (a.get('value', ""), v)) |
---|
959 | if a['attribute'] == 'ssh_pubkey': |
---|
960 | pubkey_base = a['value'].rpartition('/')[2] |
---|
961 | if a['attribute'] == 'ssh_secretkey': |
---|
962 | secretkey_base = a['value'].rpartition('/')[2] |
---|
963 | if a['attribute'] == 'experiment_name': |
---|
964 | ename = a['value'] |
---|
965 | |
---|
966 | # Names longer than the emulab max are discarded |
---|
967 | if ename and len(ename) <= self.max_name_len: |
---|
968 | # Clean up the experiment name so that emulab will accept it. |
---|
969 | ename = re.sub(vchars_re, '-', ename) |
---|
970 | |
---|
971 | else: |
---|
972 | ename = "" |
---|
973 | for i in range(0,5): |
---|
974 | ename += random.choice(string.ascii_letters) |
---|
975 | nonce_experiment = True |
---|
976 | self.log.warn("No experiment name or suggestion too long: " + \ |
---|
977 | "picked one randomly: %s" % ename) |
---|
978 | |
---|
979 | if not pubkey_base: |
---|
980 | raise service_error(service_error.req, |
---|
981 | "No public key attribute") |
---|
982 | |
---|
983 | if not secretkey_base: |
---|
984 | raise service_error(service_error.req, |
---|
985 | "No secret key attribute") |
---|
986 | |
---|
987 | self.state_lock.acquire() |
---|
988 | if aid in self.allocation: |
---|
989 | user = self.allocation[aid].get('user', None) |
---|
990 | self.allocation[aid]['experiment'] = ename |
---|
991 | self.allocation[aid]['nonce'] = nonce_experiment |
---|
992 | self.allocation[aid]['log'] = [ ] |
---|
993 | # Create a logger that logs to the experiment's state object as |
---|
994 | # well as to the main log file. |
---|
995 | alloc_log = logging.getLogger('fedd.access.%s' % ename) |
---|
996 | h = logging.StreamHandler( |
---|
997 | list_log.list_log(self.allocation[aid]['log'])) |
---|
998 | # XXX: there should be a global one of these rather than |
---|
999 | # repeating the code. |
---|
1000 | h.setFormatter(logging.Formatter( |
---|
1001 | "%(asctime)s %(name)s %(message)s", |
---|
1002 | '%d %b %y %H:%M:%S')) |
---|
1003 | alloc_log.addHandler(h) |
---|
1004 | self.write_state() |
---|
1005 | self.state_lock.release() |
---|
1006 | |
---|
1007 | if not user: |
---|
1008 | raise service_error(service_error.internal, |
---|
1009 | "Can't find creation user for %s" %aid) |
---|
1010 | |
---|
1011 | return (ename, proj, user, pubkey_base, secretkey_base, alloc_log) |
---|
1012 | |
---|
1013 | def finalize_experiment(self, starter, topo, aid, alloc_id, proof): |
---|
1014 | """ |
---|
1015 | Store key bits of experiment state in the global repository, including |
---|
1016 | the response that may need to be replayed, and return the response. |
---|
1017 | """ |
---|
1018 | i = 0 |
---|
1019 | t = topo.clone() |
---|
1020 | # Copy the assigned names into the return topology |
---|
1021 | for e in t.elements: |
---|
1022 | if isinstance(e, topdl.Computer): |
---|
1023 | if not self.create_debug: |
---|
1024 | if e.name in starter.node: |
---|
1025 | e.localname.append("%s%s" % \ |
---|
1026 | (starter.node[e.name][0], self.domain)) |
---|
1027 | e.status = starter.node[e.name][1] |
---|
1028 | else: |
---|
1029 | # Simple debugging assignment |
---|
1030 | e.localname.append("node%d%s" % (i, self.domain)) |
---|
1031 | e.status = 'active' |
---|
1032 | e.operation.extend(('testop1', 'testop2')) |
---|
1033 | i += 1 |
---|
1034 | |
---|
1035 | # Grab the log (this is some anal locking, but better safe than |
---|
1036 | # sorry) |
---|
1037 | self.state_lock.acquire() |
---|
1038 | logv = "".join(self.allocation[aid]['log']) |
---|
1039 | # It's possible that the StartSegment call gets retried (!). |
---|
1040 | # if the 'started' key is in the allocation, we'll return it rather |
---|
1041 | # than redo the setup. |
---|
1042 | self.allocation[aid]['started'] = { |
---|
1043 | 'allocID': alloc_id, |
---|
1044 | 'allocationLog': logv, |
---|
1045 | 'segmentdescription': { |
---|
1046 | 'topdldescription': t.clone().to_dict() |
---|
1047 | }, |
---|
1048 | 'proof': proof.to_dict(), |
---|
1049 | } |
---|
1050 | self.allocation[aid]['topo'] = topo.clone() |
---|
1051 | retval = copy.copy(self.allocation[aid]['started']) |
---|
1052 | self.write_state() |
---|
1053 | self.state_lock.release() |
---|
1054 | return retval |
---|
1055 | |
---|
1056 | # End of StartSegment support routines |
---|
1057 | |
---|
1058 | def StartSegment(self, req, fid): |
---|
1059 | err = None # Any service_error generated after tmpdir is created |
---|
1060 | rv = None # Return value from segment creation |
---|
1061 | |
---|
1062 | try: |
---|
1063 | req = req['StartSegmentRequestBody'] |
---|
1064 | auth_attr = req['allocID']['fedid'] |
---|
1065 | topref = req['segmentdescription']['topdldescription'] |
---|
1066 | except KeyError: |
---|
1067 | raise service_error(server_error.req, "Badly formed request") |
---|
1068 | |
---|
1069 | connInfo = req.get('connection', []) |
---|
1070 | services = req.get('service', []) |
---|
1071 | aid = "%s" % auth_attr |
---|
1072 | attrs = req.get('fedAttr', []) |
---|
1073 | |
---|
1074 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
---|
1075 | with_proof=True) |
---|
1076 | if not access_ok: |
---|
1077 | raise service_error(service_error.access, "Access denied") |
---|
1078 | else: |
---|
1079 | # See if this is a replay of an earlier succeeded StartSegment - |
---|
1080 | # sometimes SSL kills 'em. If so, replay the response rather than |
---|
1081 | # redoing the allocation. |
---|
1082 | self.state_lock.acquire() |
---|
1083 | retval = self.allocation[aid].get('started', None) |
---|
1084 | self.state_lock.release() |
---|
1085 | if retval: |
---|
1086 | self.log.warning("Duplicate StartSegment for %s: " % aid + \ |
---|
1087 | "replaying response") |
---|
1088 | return retval |
---|
1089 | |
---|
1090 | # A new request. Do it. |
---|
1091 | |
---|
1092 | if topref: topo = topdl.Topology(**topref) |
---|
1093 | else: |
---|
1094 | raise service_error(service_error.req, |
---|
1095 | "Request missing segmentdescription'") |
---|
1096 | |
---|
1097 | certfile = "%s/%s.pem" % (self.certdir, auth_attr) |
---|
1098 | try: |
---|
1099 | tmpdir = tempfile.mkdtemp(prefix="access-") |
---|
1100 | softdir = "%s/software" % tmpdir |
---|
1101 | os.mkdir(softdir) |
---|
1102 | except EnvironmentError: |
---|
1103 | raise service_error(service_error.internal, "Cannot create tmp dir") |
---|
1104 | |
---|
1105 | # Try block alllows us to clean up temporary files. |
---|
1106 | try: |
---|
1107 | self.retrieve_software(topo, certfile, softdir) |
---|
1108 | ename, proj, user, pubkey_base, secretkey_base, alloc_log = \ |
---|
1109 | self.initialize_experiment_info(attrs, aid, |
---|
1110 | certfile, tmpdir) |
---|
1111 | |
---|
1112 | if '/' in proj: proj, gid = proj.split('/') |
---|
1113 | else: gid = None |
---|
1114 | |
---|
1115 | |
---|
1116 | # Set up userconf and seer if needed |
---|
1117 | self.configure_userconf(services, tmpdir) |
---|
1118 | self.configure_seer_services(services, topo, softdir) |
---|
1119 | # Get and send synch store variables |
---|
1120 | self.export_store_info(certfile, proj, ename, connInfo) |
---|
1121 | self.import_store_info(certfile, connInfo) |
---|
1122 | |
---|
1123 | expfile = "%s/experiment.tcl" % tmpdir |
---|
1124 | |
---|
1125 | self.generate_portal_configs(topo, pubkey_base, |
---|
1126 | secretkey_base, tmpdir, proj, ename, connInfo, services) |
---|
1127 | self.generate_ns2(topo, expfile, |
---|
1128 | "/proj/%s/software/%s/" % (proj, ename), connInfo) |
---|
1129 | |
---|
1130 | starter = self.start_segment(keyfile=self.ssh_privkey_file, |
---|
1131 | debug=self.create_debug, log=alloc_log, boss=self.boss, |
---|
1132 | cert=self.xmlrpc_cert) |
---|
1133 | rv = starter(self, ename, proj, user, expfile, tmpdir, gid=gid) |
---|
1134 | except service_error, e: |
---|
1135 | err = e |
---|
1136 | except: |
---|
1137 | t, v, st = sys.exc_info() |
---|
1138 | err = service_error(service_error.internal, "%s: %s" % \ |
---|
1139 | (v, traceback.extract_tb(st))) |
---|
1140 | |
---|
1141 | # Walk up tmpdir, deleting as we go |
---|
1142 | if self.cleanup: self.remove_dirs(tmpdir) |
---|
1143 | else: self.log.debug("[StartSegment]: not removing %s" % tmpdir) |
---|
1144 | |
---|
1145 | if rv: |
---|
1146 | return self.finalize_experiment(starter, topo, aid, req['allocID'], |
---|
1147 | proof) |
---|
1148 | elif err: |
---|
1149 | raise service_error(service_error.federant, |
---|
1150 | "Swapin failed: %s" % err) |
---|
1151 | else: |
---|
1152 | raise service_error(service_error.federant, "Swapin failed") |
---|
1153 | |
---|
1154 | def TerminateSegment(self, req, fid): |
---|
1155 | try: |
---|
1156 | req = req['TerminateSegmentRequestBody'] |
---|
1157 | except KeyError: |
---|
1158 | raise service_error(server_error.req, "Badly formed request") |
---|
1159 | |
---|
1160 | auth_attr = req['allocID']['fedid'] |
---|
1161 | aid = "%s" % auth_attr |
---|
1162 | attrs = req.get('fedAttr', []) |
---|
1163 | |
---|
1164 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
---|
1165 | with_proof=True) |
---|
1166 | if not access_ok: |
---|
1167 | raise service_error(service_error.access, "Access denied") |
---|
1168 | |
---|
1169 | self.state_lock.acquire() |
---|
1170 | if aid in self.allocation: |
---|
1171 | proj = self.allocation[aid].get('project', None) |
---|
1172 | if not proj: |
---|
1173 | proj = self.allocation[aid].get('sproject', None) |
---|
1174 | user = self.allocation[aid].get('user', None) |
---|
1175 | ename = self.allocation[aid].get('experiment', None) |
---|
1176 | nonce = self.allocation[aid].get('nonce', False) |
---|
1177 | else: |
---|
1178 | proj = None |
---|
1179 | user = None |
---|
1180 | ename = None |
---|
1181 | nonce = False |
---|
1182 | self.state_lock.release() |
---|
1183 | |
---|
1184 | if not proj: |
---|
1185 | raise service_error(service_error.internal, |
---|
1186 | "Can't find project for %s" % aid) |
---|
1187 | else: |
---|
1188 | if '/' in proj: proj, gid = proj.split('/') |
---|
1189 | else: gid = None |
---|
1190 | |
---|
1191 | if not user: |
---|
1192 | raise service_error(service_error.internal, |
---|
1193 | "Can't find creation user for %s" % aid) |
---|
1194 | if not ename: |
---|
1195 | raise service_error(service_error.internal, |
---|
1196 | "Can't find experiment name for %s" % aid) |
---|
1197 | stopper = self.stop_segment(keyfile=self.ssh_privkey_file, |
---|
1198 | debug=self.create_debug, boss=self.boss, cert=self.xmlrpc_cert) |
---|
1199 | stopper(self, user, proj, ename, gid, nonce) |
---|
1200 | return { 'allocID': req['allocID'], 'proof': proof.to_dict() } |
---|