[19cc408] | 1 | #!/usr/local/bin/python |
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| 2 | |
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| 3 | import os,sys |
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[eeb0088] | 4 | import stat # for chmod constants |
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[19cc408] | 5 | import re |
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[ab847bc] | 6 | import random |
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[19cc408] | 7 | import string |
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| 8 | import copy |
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[d81971a] | 9 | import pickle |
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[c971895] | 10 | import logging |
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[eeb0088] | 11 | import subprocess |
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[06cc65b] | 12 | import traceback |
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[19cc408] | 13 | |
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[f8582c9] | 14 | from threading import * |
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[8e6fe4d] | 15 | from M2Crypto.SSL import SSLError |
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[f8582c9] | 16 | |
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[f771e2f] | 17 | from access import access_base |
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[78f2668] | 18 | from legacy_access import legacy_access |
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[f771e2f] | 19 | |
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[ec4fb42] | 20 | from util import * |
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| 21 | from allocate_project import allocate_project_local, allocate_project_remote |
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[51cc9df] | 22 | from fedid import fedid, generate_fedid |
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[6e63513] | 23 | from authorizer import authorizer, abac_authorizer |
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[6a0c9f4] | 24 | from service_error import service_error |
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[9460b1e] | 25 | from remote_service import xmlrpc_handler, soap_handler, service_caller |
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[e83f2f2] | 26 | from proof import proof as access_proof |
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[11a08b0] | 27 | |
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[6c57fe9] | 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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[11860f52] | 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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[0ea11af] | 37 | |
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| 38 | # Make log messages disappear if noone configures a fedd logger |
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[11a08b0] | 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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[19cc408] | 44 | |
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[78f2668] | 45 | class access(access_base, legacy_access): |
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[19cc408] | 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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[53b5c18] | 53 | max_name_len = 19 |
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| 54 | |
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[3f6bc5f] | 55 | def __init__(self, config=None, auth=None): |
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[866c983] | 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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[f771e2f] | 60 | access_base.__init__(self, config, auth) |
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[866c983] | 61 | |
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[53b5c18] | 62 | self.max_name_len = access.max_name_len |
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| 63 | |
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[866c983] | 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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[eeb0088] | 67 | self.userconfdir = config.get("access","userconfdir") |
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| 68 | self.userconfcmd = config.get("access","userconfcmd") |
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[fe28bb2] | 69 | self.userconfurl = config.get("access","userconfurl") |
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[9b3627e] | 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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[e76f38a] | 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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[49051fb] | 75 | self.seer_master_start = config.get("access", "seer_master_start") |
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[ecca6eb] | 76 | self.ssh_privkey_file = config.get("access","ssh_privkey_file") |
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[3bddd24] | 77 | self.ssh_pubkey_file = config.get("access","ssh_pubkey_file") |
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[6280b1f] | 78 | self.ssh_port = config.get("access","ssh_port") or "22" |
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[181aeb4] | 79 | self.boss = config.get("access", "boss") |
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[814b5e5] | 80 | self.ops = config.get("access", "ops") |
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[181aeb4] | 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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[5e1fb7b] | 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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[f771e2f] | 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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[11860f52] | 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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[866c983] | 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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[6e63513] | 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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[c002cb2] | 122 | self.access = { } |
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[6e63513] | 123 | if accessdb: |
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[78f2668] | 124 | self.legacy_read_access(accessdb, self.legacy_access_tuple) |
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[6e63513] | 125 | elif self.auth_type == 'abac': |
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| 126 | self.auth = abac_authorizer(load=self.auth_dir) |
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[c002cb2] | 127 | self.access = [ ] |
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[6e63513] | 128 | if accessdb: |
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[78f2668] | 129 | self.read_access(accessdb, self.access_tuple) |
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[6e63513] | 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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[f771e2f] | 133 | |
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[06cc65b] | 134 | # read_state in the base_class |
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[f771e2f] | 135 | self.state_lock.acquire() |
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[06cc65b] | 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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[f771e2f] | 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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[6e63513] | 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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[f771e2f] | 154 | self.state_lock.release() |
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[a20a20f] | 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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[866c983] | 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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[cc8d8e9] | 180 | 'StartSegment': soap_handler("StartSegment", self.StartSegment), |
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[e76f38a] | 181 | 'TerminateSegment': soap_handler("TerminateSegment", |
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| 182 | self.TerminateSegment), |
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[866c983] | 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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[5ae3857] | 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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[866c983] | 192 | } |
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| 193 | |
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[2761484] | 194 | self.call_SetValue = service_caller('SetValue') |
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[2ee4226] | 195 | self.call_GetValue = service_caller('GetValue', log=self.log) |
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[866c983] | 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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[e76f38a] | 204 | |
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[866c983] | 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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[f8582c9] | 209 | |
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[e76f38a] | 210 | @staticmethod |
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[78f2668] | 211 | def legacy_access_tuple(str): |
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[06cc65b] | 212 | """ |
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[027b87b] | 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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[06cc65b] | 216 | """ |
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[866c983] | 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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[19cc408] | 220 | |
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[f771e2f] | 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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[027b87b] | 231 | names[0] = first[0] |
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[f771e2f] | 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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[19cc408] | 239 | |
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[6e63513] | 240 | @staticmethod |
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[78f2668] | 241 | def access_tuple(str): |
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[6e63513] | 242 | """ |
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| 243 | Convert a string of the form (id, id) into an access_project. This is |
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[78f2668] | 244 | called by read_access to convert to local attributes. It returns |
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[6e63513] | 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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[725c55d] | 251 | # The slice takes the parens off the string. |
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| 252 | proj, user = str[1:-1].split(',') |
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[027b87b] | 253 | return (proj.strip(), user.strip(), user.strip()) |
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[6e63513] | 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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[06cc65b] | 258 | # RequestAccess support routines |
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| 259 | |
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[78f2668] | 260 | def legacy_lookup_access(self, req, fid): |
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[866c983] | 261 | """ |
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[06cc65b] | 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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[866c983] | 270 | """ |
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| 271 | # Return values |
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[027b87b] | 272 | rp = None |
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[866c983] | 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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[78f2668] | 275 | found, match = self.legacy_lookup_access_base(req, fid) |
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[f771e2f] | 276 | tb, project, user = match |
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[866c983] | 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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[027b87b] | 287 | if found[0] == "<same>": |
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[866c983] | 288 | if project != None: |
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[027b87b] | 289 | rp = project |
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[866c983] | 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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[027b87b] | 294 | elif found[0] == "<dynamic>": |
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| 295 | rp = None |
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[866c983] | 296 | dyn_proj = True |
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| 297 | else: |
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[027b87b] | 298 | rp = found[0] |
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[866c983] | 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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[f771e2f] | 329 | [ fid ] |
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[19cc408] | 330 | |
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[f771e2f] | 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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[eeb0088] | 356 | else: |
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[f771e2f] | 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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[eeb0088] | 377 | |
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[f771e2f] | 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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[c65b7e4] | 387 | self.allocation[aid]['auth'] = set() |
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[eeb0088] | 388 | try: |
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[f771e2f] | 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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[43197eb] | 401 | else: |
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[f771e2f] | 402 | # sproject is a static project associated with this allocation. |
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| 403 | self.allocation[aid]['sproject'] = pname |
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[866c983] | 404 | |
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[f771e2f] | 405 | self.allocation[aid]['keys'] = [ ] |
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[5e1fb7b] | 406 | |
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[f771e2f] | 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) |
---|
| 415 | if self.keys.has_key(kv): self.keys[kv] += 1 |
---|
| 416 | else: self.keys[kv] = 1 |
---|
| 417 | self.allocation[aid]['keys'].append((uname, k)) |
---|
| 418 | except KeyError: |
---|
| 419 | self.state_lock.release() |
---|
| 420 | raise service_error(service_error.internal, |
---|
| 421 | "Misformed allocation response?") |
---|
| 422 | |
---|
| 423 | self.allocation[aid]['owners'] = owners |
---|
| 424 | self.write_state() |
---|
| 425 | self.state_lock.release() |
---|
| 426 | return (pname, uname) |
---|
[19cc408] | 427 | |
---|
[06cc65b] | 428 | # End of RequestAccess support routines |
---|
| 429 | |
---|
[19cc408] | 430 | def RequestAccess(self, req, fid): |
---|
[866c983] | 431 | """ |
---|
| 432 | Handle the access request. Proxy if not for us. |
---|
| 433 | |
---|
| 434 | Parse out the fields and make the allocations or rejections if for us, |
---|
| 435 | otherwise, assuming we're willing to proxy, proxy the request out. |
---|
| 436 | """ |
---|
| 437 | |
---|
| 438 | def gateway_hardware(h): |
---|
[5e1fb7b] | 439 | if h == 'GWTYPE': return self.portal_type or 'GWTYPE' |
---|
[866c983] | 440 | else: return h |
---|
| 441 | |
---|
[43197eb] | 442 | def get_export_project(svcs): |
---|
| 443 | """ |
---|
| 444 | if the service requests includes one to export a project, return |
---|
| 445 | that project. |
---|
| 446 | """ |
---|
| 447 | rv = None |
---|
| 448 | for s in svcs: |
---|
| 449 | if s.get('name', '') == 'project_export' and \ |
---|
| 450 | s.get('visibility', '') == 'export': |
---|
| 451 | if not rv: |
---|
[1f6a573] | 452 | for a in s.get('fedAttr', []): |
---|
[43197eb] | 453 | if a.get('attribute', '') == 'project' \ |
---|
| 454 | and 'value' in a: |
---|
| 455 | rv = a['value'] |
---|
| 456 | else: |
---|
| 457 | raise service_error(service_error, access, |
---|
| 458 | 'Requesting multiple project exports is ' + \ |
---|
| 459 | 'not supported'); |
---|
| 460 | return rv |
---|
| 461 | |
---|
[866c983] | 462 | # The dance to get into the request body |
---|
| 463 | if req.has_key('RequestAccessRequestBody'): |
---|
| 464 | req = req['RequestAccessRequestBody'] |
---|
| 465 | else: |
---|
| 466 | raise service_error(service_error.req, "No request!?") |
---|
| 467 | |
---|
[1f6a573] | 468 | # if this includes a project export request, construct a filter such |
---|
| 469 | # that only the ABAC attributes mapped to that project are checked for |
---|
| 470 | # access. |
---|
| 471 | if 'service' in req: |
---|
| 472 | ep = get_export_project(req['service']) |
---|
[de86b35] | 473 | if ep: pf = lambda(a): a.value[0] == ep |
---|
| 474 | else: pf = None |
---|
[1f6a573] | 475 | else: |
---|
| 476 | ep = None |
---|
| 477 | pf = None |
---|
| 478 | |
---|
[c573278] | 479 | if self.auth.import_credentials( |
---|
| 480 | data_list=req.get('abac_credential', [])): |
---|
| 481 | self.auth.save() |
---|
[866c983] | 482 | |
---|
[6e63513] | 483 | if self.auth_type == "legacy": |
---|
[e83f2f2] | 484 | found, dyn, owners= self.legacy_lookup_access(req, fid) |
---|
| 485 | proof = access_proof("me", fid, "create") |
---|
[6e63513] | 486 | elif self.auth_type == 'abac': |
---|
[e83f2f2] | 487 | found, dyn, owners, proof = self.lookup_access(req, fid, filter=pf) |
---|
[6e63513] | 488 | else: |
---|
| 489 | raise service_error(service_error.internal, |
---|
| 490 | 'Unknown auth_type: %s' % self.auth_type) |
---|
[f771e2f] | 491 | ap = None |
---|
[866c983] | 492 | |
---|
[1f6a573] | 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) |
---|
[f771e2f] | 498 | |
---|
| 499 | if self.ssh_pubkey_file: |
---|
[027b87b] | 500 | ap = self.do_project_allocation(dyn[1], found[0], found[1]) |
---|
[f771e2f] | 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 |
---|
[c65b7e4] | 516 | self.append_allocation_authorization(aid, |
---|
| 517 | set([(o, allocID) for o in owners]), state_attr='allocation') |
---|
[f771e2f] | 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 } , |
---|
[e83f2f2] | 528 | ap, services, proof) |
---|
[f771e2f] | 529 | return resp |
---|
[d81971a] | 530 | |
---|
[8cf2b90e] | 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 | |
---|
[d81971a] | 554 | def ReleaseAccess(self, req, fid): |
---|
[866c983] | 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 | |
---|
[8cf2b90e] | 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 | |
---|
[725c55d] | 573 | self.log.debug("[access] deallocation requested for %s by %s" % \ |
---|
| 574 | (aid, fid)) |
---|
[e83f2f2] | 575 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
---|
| 576 | with_proof=True) |
---|
| 577 | if not access_ok: |
---|
[8cf2b90e] | 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) |
---|
[c65b7e4] | 596 | self.clear_allocation_authorization(aid, state_attr='allocation') |
---|
[8cf2b90e] | 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) |
---|
[e83f2f2] | 631 | return { 'allocID': req['allocID'], 'proof': proof.to_dict() } |
---|
[8cf2b90e] | 632 | else: |
---|
| 633 | self.state_lock.release() |
---|
| 634 | raise service_error(service_error.req, "No such allocation") |
---|
[866c983] | 635 | |
---|
[06cc65b] | 636 | # These are subroutines for StartSegment |
---|
[8cf2b90e] | 637 | def generate_ns2(self, topo, expfn, softdir, connInfo): |
---|
[06cc65b] | 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 | """ |
---|
[617592b] | 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): |
---|
[49051fb] | 657 | if self.node_info.has_key(e.name): |
---|
[fefa026] | 658 | info = self.node_info[e.name] |
---|
| 659 | for ifname, vlan, type in info: |
---|
[617592b] | 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" % \ |
---|
[49051fb] | 668 | (ifname, e.name)) |
---|
[1cf8e2c] | 669 | # XXX: do netmask right |
---|
[617592b] | 670 | if type =='link': |
---|
[06cc65b] | 671 | s = ("tb-allow-external ${%s} " + \ |
---|
| 672 | "dragonportal ip %s vlan %s " + \ |
---|
| 673 | "netmask 255.255.255.0\n") % \ |
---|
[e07c8f3] | 674 | (topdl.to_tcl_name(e.name), addr, vlan) |
---|
[617592b] | 675 | elif type =='lan': |
---|
[06cc65b] | 676 | s = ("tb-allow-external ${%s} " + \ |
---|
| 677 | "dragonportal " + \ |
---|
[617592b] | 678 | "ip %s vlan %s usurp %s\n") % \ |
---|
[e07c8f3] | 679 | (topdl.to_tcl_name(e.name), addr, |
---|
| 680 | vlan, subs) |
---|
[617592b] | 681 | else: |
---|
| 682 | raise service_error(service_error_internal, |
---|
| 683 | "Unknown DRAGON type %s" % type) |
---|
| 684 | return s |
---|
| 685 | |
---|
| 686 | class not_dragon: |
---|
[06cc65b] | 687 | """ |
---|
| 688 | Return true if a node is in the given map of dragon nodes. |
---|
| 689 | """ |
---|
[617592b] | 690 | def __init__(self, map): |
---|
| 691 | self.nodes = set(map.keys()) |
---|
| 692 | |
---|
| 693 | def __call__(self, e): |
---|
[49051fb] | 694 | return e.name not in self.nodes |
---|
[69692a9] | 695 | |
---|
[06cc65b] | 696 | # Main line of generate_ns2 |
---|
[ecca6eb] | 697 | t = topo.clone() |
---|
| 698 | |
---|
[06cc65b] | 699 | # Create the map of nodes that need direct connections (dragon |
---|
| 700 | # connections) from the connInfo |
---|
[617592b] | 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: |
---|
[8cf2b90e] | 708 | raise service_error(service_error.internal, "No vlan tag") |
---|
[617592b] | 709 | members = i.get('member', []) |
---|
| 710 | if len(members) > 1: type = 'lan' |
---|
| 711 | else: type = 'link' |
---|
| 712 | |
---|
| 713 | try: |
---|
| 714 | for m in members: |
---|
[8cf2b90e] | 715 | if m['element'] in dragon_map: |
---|
[617592b] | 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 | |
---|
[35aa3ae] | 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) |
---|
[43649f1] | 734 | if isinstance(e, topdl.Computer): |
---|
[e76f38a] | 735 | self.add_kit(e, self.federation_software) |
---|
[5e1fb7b] | 736 | if e.get_attribute('portal') and self.portal_startcommand: |
---|
[9b3627e] | 737 | # Add local portal support software |
---|
[e76f38a] | 738 | self.add_kit(e, self.portal_software) |
---|
[43649f1] | 739 | # Portals never have a user-specified start command |
---|
[5e1fb7b] | 740 | e.set_attribute('startup', self.portal_startcommand) |
---|
| 741 | elif self.node_startcommand: |
---|
[43649f1] | 742 | if e.get_attribute('startup'): |
---|
[d87778f] | 743 | e.set_attribute('startup', "%s \\$USER '%s'" % \ |
---|
[5e1fb7b] | 744 | (self.node_startcommand, |
---|
| 745 | e.get_attribute('startup'))) |
---|
[43649f1] | 746 | else: |
---|
[5e1fb7b] | 747 | e.set_attribute('startup', self.node_startcommand) |
---|
[0297248] | 748 | |
---|
[49051fb] | 749 | dinf = [i[0] for i in dragon_map.get(e.name, []) ] |
---|
[35aa3ae] | 750 | # Remove portal interfaces that do not connect to DRAGON |
---|
| 751 | e.interface = [i for i in e.interface \ |
---|
[617592b] | 752 | if not i.get_attribute('portal') or i.name in dinf ] |
---|
[9b3627e] | 753 | # Fix software paths |
---|
| 754 | for s in getattr(e, 'software', []): |
---|
| 755 | s.location = re.sub("^.*/", softdir, s.location) |
---|
[35aa3ae] | 756 | |
---|
| 757 | t.substrates = [ s.clone() for s in t.substrates ] |
---|
| 758 | t.incorporate_elements() |
---|
[ecca6eb] | 759 | |
---|
| 760 | # Customize the ns2 output for local portal commands and images |
---|
| 761 | filters = [] |
---|
| 762 | |
---|
[5e1fb7b] | 763 | if self.dragon_endpoint: |
---|
[617592b] | 764 | add_filter = not_dragon(dragon_map) |
---|
| 765 | filters.append(dragon_commands(dragon_map)) |
---|
[69692a9] | 766 | else: |
---|
| 767 | add_filter = None |
---|
| 768 | |
---|
[5e1fb7b] | 769 | if self.portal_command: |
---|
| 770 | filters.append(topdl.generate_portal_command_filter( |
---|
| 771 | self.portal_command, add_filter=add_filter)) |
---|
[ecca6eb] | 772 | |
---|
[5e1fb7b] | 773 | if self.portal_image: |
---|
[ecca6eb] | 774 | filters.append(topdl.generate_portal_image_filter( |
---|
[5e1fb7b] | 775 | self.portal_image)) |
---|
[ecca6eb] | 776 | |
---|
[5e1fb7b] | 777 | if self.portal_type: |
---|
[ecca6eb] | 778 | filters.append(topdl.generate_portal_hardware_filter( |
---|
[5e1fb7b] | 779 | self.portal_type)) |
---|
[ecca6eb] | 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() |
---|
[d3c8759] | 787 | except EnvironmentError: |
---|
[ecca6eb] | 788 | raise service_error(service_error.internal, |
---|
| 789 | "Cannot write experiment file %s: %s" % (expfn,e)) |
---|
[f9ef40b] | 790 | |
---|
[2c1fd21] | 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 | |
---|
[49051fb] | 828 | def add_seer_node(self, topo, name, startup): |
---|
| 829 | """ |
---|
| 830 | Add a seer node to the given topology, with the startup command passed |
---|
[06cc65b] | 831 | in. Used by configure seer_services. |
---|
[49051fb] | 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): |
---|
[8cf2b90e] | 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 |
---|
[49051fb] | 856 | for s in services: |
---|
| 857 | s_name = s.get('name', '') |
---|
| 858 | s_vis = s.get('visibility','') |
---|
| 859 | |
---|
[8cf2b90e] | 860 | if s_name == 'local_seer_control' and s_vis == 'export': |
---|
[49051fb] | 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: |
---|
[acaa9b9] | 881 | startup = "%s -C %s" % (self.local_seer_start, "seer-master") |
---|
[49051fb] | 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: |
---|
[e07c8f3] | 887 | self.add_seer_node(topo, 'seer-master', |
---|
| 888 | "%s -R -n -R seer-master -R -A -R sink" % \ |
---|
| 889 | self.seer_master_start) |
---|
[49051fb] | 890 | |
---|
[06cc65b] | 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)) |
---|
[49051fb] | 913 | |
---|
[06cc65b] | 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)) |
---|
[49051fb] | 919 | |
---|
[6c57fe9] | 920 | |
---|
[06cc65b] | 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 | """ |
---|
[3df9b33] | 927 | configs = ('hosts', 'ssh_pubkey', 'ssh_secretkey', |
---|
| 928 | 'seer_ca_pem', 'seer_node_pem') |
---|
[06cc65b] | 929 | ename = None |
---|
| 930 | pubkey_base = None |
---|
| 931 | secretkey_base = None |
---|
| 932 | proj = None |
---|
| 933 | user = None |
---|
| 934 | alloc_log = None |
---|
[262328f] | 935 | vchars_re = '[^' + string.ascii_letters + string.digits + '-]' |
---|
[06cc65b] | 936 | |
---|
[f3898f7] | 937 | self.state_lock.acquire() |
---|
| 938 | if aid in self.allocation: |
---|
| 939 | proj = self.allocation[aid].get('project', None) |
---|
| 940 | if not proj: |
---|
| 941 | proj = self.allocation[aid].get('sproject', None) |
---|
| 942 | self.state_lock.release() |
---|
| 943 | |
---|
| 944 | if not proj: |
---|
| 945 | raise service_error(service_error.internal, |
---|
| 946 | "Can't find project for %s" %aid) |
---|
| 947 | |
---|
[06cc65b] | 948 | for a in attrs: |
---|
| 949 | if a['attribute'] in configs: |
---|
| 950 | try: |
---|
| 951 | self.log.debug("Retrieving %s from %s" % \ |
---|
| 952 | (a['attribute'], a['value'])) |
---|
| 953 | get_url(a['value'], certfile, tmpdir) |
---|
| 954 | except: |
---|
| 955 | t, v, st = sys.exc_info() |
---|
| 956 | raise service_error(service_error.internal, |
---|
| 957 | "Error retrieving %s: %s" % (a.get('value', ""), v)) |
---|
| 958 | if a['attribute'] == 'ssh_pubkey': |
---|
| 959 | pubkey_base = a['value'].rpartition('/')[2] |
---|
| 960 | if a['attribute'] == 'ssh_secretkey': |
---|
| 961 | secretkey_base = a['value'].rpartition('/')[2] |
---|
| 962 | if a['attribute'] == 'experiment_name': |
---|
| 963 | ename = a['value'] |
---|
| 964 | |
---|
[f3898f7] | 965 | # Names longer than the emulab max are discarded |
---|
| 966 | # Projects with a group require nonce experiment names as well |
---|
| 967 | if ename and len(ename) <= self.max_name_len and '/' not in proj: |
---|
[262328f] | 968 | # Clean up the experiment name so that emulab will accept it. |
---|
| 969 | ename = re.sub(vchars_re, '-', ename) |
---|
| 970 | |
---|
| 971 | else: |
---|
[06cc65b] | 972 | ename = "" |
---|
| 973 | for i in range(0,5): |
---|
| 974 | ename += random.choice(string.ascii_letters) |
---|
[53b5c18] | 975 | self.log.warn("No experiment name or suggestion too long: " + \ |
---|
| 976 | "picked one randomly: %s" % ename) |
---|
[06cc65b] | 977 | |
---|
| 978 | if not pubkey_base: |
---|
| 979 | raise service_error(service_error.req, |
---|
| 980 | "No public key attribute") |
---|
| 981 | |
---|
| 982 | if not secretkey_base: |
---|
| 983 | raise service_error(service_error.req, |
---|
| 984 | "No secret key attribute") |
---|
[6c57fe9] | 985 | |
---|
[06cc65b] | 986 | self.state_lock.acquire() |
---|
| 987 | if aid in self.allocation: |
---|
| 988 | user = self.allocation[aid].get('user', None) |
---|
| 989 | self.allocation[aid]['experiment'] = ename |
---|
| 990 | self.allocation[aid]['log'] = [ ] |
---|
| 991 | # Create a logger that logs to the experiment's state object as |
---|
| 992 | # well as to the main log file. |
---|
| 993 | alloc_log = logging.getLogger('fedd.access.%s' % ename) |
---|
| 994 | h = logging.StreamHandler( |
---|
| 995 | list_log.list_log(self.allocation[aid]['log'])) |
---|
| 996 | # XXX: there should be a global one of these rather than |
---|
| 997 | # repeating the code. |
---|
| 998 | h.setFormatter(logging.Formatter( |
---|
| 999 | "%(asctime)s %(name)s %(message)s", |
---|
| 1000 | '%d %b %y %H:%M:%S')) |
---|
| 1001 | alloc_log.addHandler(h) |
---|
| 1002 | self.write_state() |
---|
| 1003 | self.state_lock.release() |
---|
| 1004 | |
---|
| 1005 | if not user: |
---|
| 1006 | raise service_error(service_error.internal, |
---|
| 1007 | "Can't find creation user for %s" %aid) |
---|
| 1008 | |
---|
| 1009 | return (ename, proj, user, pubkey_base, secretkey_base, alloc_log) |
---|
| 1010 | |
---|
[e83f2f2] | 1011 | def finalize_experiment(self, starter, topo, aid, alloc_id, proof): |
---|
[06cc65b] | 1012 | """ |
---|
| 1013 | Store key bits of experiment state in the global repository, including |
---|
| 1014 | the response that may need to be replayed, and return the response. |
---|
| 1015 | """ |
---|
| 1016 | # Copy the assigned names into the return topology |
---|
| 1017 | embedding = [ ] |
---|
| 1018 | for n in starter.node: |
---|
| 1019 | embedding.append({ |
---|
| 1020 | 'toponame': n, |
---|
| 1021 | 'physname': ["%s%s" % (starter.node[n], self.domain)], |
---|
| 1022 | }) |
---|
| 1023 | # Grab the log (this is some anal locking, but better safe than |
---|
| 1024 | # sorry) |
---|
| 1025 | self.state_lock.acquire() |
---|
| 1026 | logv = "".join(self.allocation[aid]['log']) |
---|
| 1027 | # It's possible that the StartSegment call gets retried (!). |
---|
| 1028 | # if the 'started' key is in the allocation, we'll return it rather |
---|
| 1029 | # than redo the setup. |
---|
| 1030 | self.allocation[aid]['started'] = { |
---|
| 1031 | 'allocID': alloc_id, |
---|
| 1032 | 'allocationLog': logv, |
---|
| 1033 | 'segmentdescription': { |
---|
| 1034 | 'topdldescription': topo.clone().to_dict() |
---|
| 1035 | }, |
---|
[e83f2f2] | 1036 | 'embedding': embedding, |
---|
| 1037 | 'proof': proof.to_dict(), |
---|
[06cc65b] | 1038 | } |
---|
| 1039 | retval = copy.copy(self.allocation[aid]['started']) |
---|
| 1040 | self.write_state() |
---|
| 1041 | self.state_lock.release() |
---|
| 1042 | return retval |
---|
| 1043 | |
---|
| 1044 | # End of StartSegment support routines |
---|
| 1045 | |
---|
| 1046 | def StartSegment(self, req, fid): |
---|
[b770aa0] | 1047 | err = None # Any service_error generated after tmpdir is created |
---|
| 1048 | rv = None # Return value from segment creation |
---|
| 1049 | |
---|
[cc8d8e9] | 1050 | try: |
---|
| 1051 | req = req['StartSegmentRequestBody'] |
---|
[06cc65b] | 1052 | auth_attr = req['allocID']['fedid'] |
---|
| 1053 | topref = req['segmentdescription']['topdldescription'] |
---|
[cc8d8e9] | 1054 | except KeyError: |
---|
| 1055 | raise service_error(server_error.req, "Badly formed request") |
---|
[ecca6eb] | 1056 | |
---|
[e02cd14] | 1057 | connInfo = req.get('connection', []) |
---|
| 1058 | services = req.get('service', []) |
---|
[ecca6eb] | 1059 | aid = "%s" % auth_attr |
---|
[6c57fe9] | 1060 | attrs = req.get('fedAttr', []) |
---|
[e83f2f2] | 1061 | |
---|
| 1062 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
---|
| 1063 | with_proof=True) |
---|
| 1064 | if not access_ok: |
---|
[ecca6eb] | 1065 | raise service_error(service_error.access, "Access denied") |
---|
[cd06678] | 1066 | else: |
---|
| 1067 | # See if this is a replay of an earlier succeeded StartSegment - |
---|
| 1068 | # sometimes SSL kills 'em. If so, replay the response rather than |
---|
| 1069 | # redoing the allocation. |
---|
| 1070 | self.state_lock.acquire() |
---|
| 1071 | retval = self.allocation[aid].get('started', None) |
---|
| 1072 | self.state_lock.release() |
---|
| 1073 | if retval: |
---|
| 1074 | self.log.warning("Duplicate StartSegment for %s: " % aid + \ |
---|
| 1075 | "replaying response") |
---|
| 1076 | return retval |
---|
| 1077 | |
---|
| 1078 | # A new request. Do it. |
---|
[6c57fe9] | 1079 | |
---|
[06cc65b] | 1080 | if topref: topo = topdl.Topology(**topref) |
---|
[6c57fe9] | 1081 | else: |
---|
| 1082 | raise service_error(service_error.req, |
---|
| 1083 | "Request missing segmentdescription'") |
---|
[2761484] | 1084 | |
---|
[6c57fe9] | 1085 | certfile = "%s/%s.pem" % (self.certdir, auth_attr) |
---|
| 1086 | try: |
---|
| 1087 | tmpdir = tempfile.mkdtemp(prefix="access-") |
---|
[ecca6eb] | 1088 | softdir = "%s/software" % tmpdir |
---|
[c23684d] | 1089 | os.mkdir(softdir) |
---|
[d3c8759] | 1090 | except EnvironmentError: |
---|
[6c57fe9] | 1091 | raise service_error(service_error.internal, "Cannot create tmp dir") |
---|
| 1092 | |
---|
[b770aa0] | 1093 | # Try block alllows us to clean up temporary files. |
---|
| 1094 | try: |
---|
[06cc65b] | 1095 | self.retrieve_software(topo, certfile, softdir) |
---|
| 1096 | ename, proj, user, pubkey_base, secretkey_base, alloc_log = \ |
---|
| 1097 | self.initialize_experiment_info(attrs, aid, |
---|
| 1098 | certfile, tmpdir) |
---|
[9b3627e] | 1099 | |
---|
[f3898f7] | 1100 | if '/' in proj: proj, gid = proj.split('/') |
---|
| 1101 | else: gid = None |
---|
| 1102 | |
---|
| 1103 | |
---|
[06cc65b] | 1104 | # Set up userconf and seer if needed |
---|
[c200d36] | 1105 | self.configure_userconf(services, tmpdir) |
---|
[49051fb] | 1106 | self.configure_seer_services(services, topo, softdir) |
---|
[06cc65b] | 1107 | # Get and send synch store variables |
---|
[2761484] | 1108 | self.export_store_info(certfile, proj, ename, connInfo) |
---|
| 1109 | self.import_store_info(certfile, connInfo) |
---|
| 1110 | |
---|
[b770aa0] | 1111 | expfile = "%s/experiment.tcl" % tmpdir |
---|
| 1112 | |
---|
| 1113 | self.generate_portal_configs(topo, pubkey_base, |
---|
[06cc65b] | 1114 | secretkey_base, tmpdir, proj, ename, connInfo, services) |
---|
[b770aa0] | 1115 | self.generate_ns2(topo, expfile, |
---|
[8cf2b90e] | 1116 | "/proj/%s/software/%s/" % (proj, ename), connInfo) |
---|
[f07fa49] | 1117 | |
---|
[b770aa0] | 1118 | starter = self.start_segment(keyfile=self.ssh_privkey_file, |
---|
[181aeb4] | 1119 | debug=self.create_debug, log=alloc_log, boss=self.boss, |
---|
| 1120 | cert=self.xmlrpc_cert) |
---|
[f3898f7] | 1121 | rv = starter(self, ename, proj, user, expfile, tmpdir, gid=gid) |
---|
[b770aa0] | 1122 | except service_error, e: |
---|
| 1123 | err = e |
---|
[06cc65b] | 1124 | except: |
---|
| 1125 | t, v, st = sys.exc_info() |
---|
| 1126 | err = service_error(service_error.internal, "%s: %s" % \ |
---|
| 1127 | (v, traceback.extract_tb(st))) |
---|
[b770aa0] | 1128 | |
---|
[574055e] | 1129 | # Walk up tmpdir, deleting as we go |
---|
[06cc65b] | 1130 | if self.cleanup: self.remove_dirs(tmpdir) |
---|
| 1131 | else: self.log.debug("[StartSegment]: not removing %s" % tmpdir) |
---|
[574055e] | 1132 | |
---|
[fd556d1] | 1133 | if rv: |
---|
[e83f2f2] | 1134 | return self.finalize_experiment(starter, topo, aid, req['allocID'], |
---|
| 1135 | proof) |
---|
[b770aa0] | 1136 | elif err: |
---|
| 1137 | raise service_error(service_error.federant, |
---|
| 1138 | "Swapin failed: %s" % err) |
---|
[fd556d1] | 1139 | else: |
---|
| 1140 | raise service_error(service_error.federant, "Swapin failed") |
---|
[5ae3857] | 1141 | |
---|
| 1142 | def TerminateSegment(self, req, fid): |
---|
| 1143 | try: |
---|
| 1144 | req = req['TerminateSegmentRequestBody'] |
---|
| 1145 | except KeyError: |
---|
| 1146 | raise service_error(server_error.req, "Badly formed request") |
---|
| 1147 | |
---|
| 1148 | auth_attr = req['allocID']['fedid'] |
---|
| 1149 | aid = "%s" % auth_attr |
---|
| 1150 | attrs = req.get('fedAttr', []) |
---|
[e83f2f2] | 1151 | |
---|
| 1152 | access_ok, proof = self.auth.check_attribute(fid, auth_attr, |
---|
| 1153 | with_proof=True) |
---|
| 1154 | if not access_ok: |
---|
[5ae3857] | 1155 | raise service_error(service_error.access, "Access denied") |
---|
| 1156 | |
---|
| 1157 | self.state_lock.acquire() |
---|
[06cc65b] | 1158 | if aid in self.allocation: |
---|
[5ae3857] | 1159 | proj = self.allocation[aid].get('project', None) |
---|
| 1160 | if not proj: |
---|
| 1161 | proj = self.allocation[aid].get('sproject', None) |
---|
| 1162 | user = self.allocation[aid].get('user', None) |
---|
| 1163 | ename = self.allocation[aid].get('experiment', None) |
---|
[1d913e13] | 1164 | else: |
---|
| 1165 | proj = None |
---|
| 1166 | user = None |
---|
| 1167 | ename = None |
---|
[5ae3857] | 1168 | self.state_lock.release() |
---|
| 1169 | |
---|
| 1170 | if not proj: |
---|
| 1171 | raise service_error(service_error.internal, |
---|
| 1172 | "Can't find project for %s" % aid) |
---|
[f3898f7] | 1173 | else: |
---|
| 1174 | if '/' in proj: proj, gid = proj.split('/') |
---|
| 1175 | else: gid = None |
---|
[5ae3857] | 1176 | |
---|
| 1177 | if not user: |
---|
| 1178 | raise service_error(service_error.internal, |
---|
| 1179 | "Can't find creation user for %s" % aid) |
---|
| 1180 | if not ename: |
---|
| 1181 | raise service_error(service_error.internal, |
---|
| 1182 | "Can't find experiment name for %s" % aid) |
---|
[fd556d1] | 1183 | stopper = self.stop_segment(keyfile=self.ssh_privkey_file, |
---|
[181aeb4] | 1184 | debug=self.create_debug, boss=self.boss, cert=self.xmlrpc_cert) |
---|
[f3898f7] | 1185 | stopper(self, user, proj, ename, gid) |
---|
[e83f2f2] | 1186 | return { 'allocID': req['allocID'], 'proof': proof.to_dict() } |
---|