1 | #!/usr/local/bin/python |
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2 | |
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3 | import logging |
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4 | import util |
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5 | from deter import topdl |
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6 | |
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7 | from M2Crypto import SSL |
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8 | from M2Crypto.m2xmlrpclib import SSL_Transport |
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9 | from xmlrpclib import ServerProxy, dumps, loads, Fault, Error, Binary |
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10 | from M2Crypto.SSL import SSLError |
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11 | from M2Crypto.BIO import BIOError |
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12 | from socket import error as socket_error |
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13 | from socket import sslerror |
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14 | import httplib |
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15 | from federation.util import fedd_ssl_context |
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16 | from federation import service_error |
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17 | from federation.operation_status import operation_status |
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18 | |
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19 | class xmlrpc_emulab_segment: |
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20 | class node_info: |
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21 | def __init__(self, name, pname, lname=None, status=None, osname=None, |
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22 | osversion=None, image=None): |
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23 | self.name = name |
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24 | self.pname = pname |
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25 | self.lname = lname |
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26 | self.status = status |
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27 | self.osname = osname |
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28 | self.osversion = osversion |
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29 | self.image = image |
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30 | def getOS(self): |
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31 | rv = None |
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32 | if self.osname or self.osversion: |
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33 | rv = topdl.OperatingSystem(name=self.osname, |
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34 | version=self.osversion) |
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35 | if self.image and rv: |
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36 | rv.set_attribute('emulab_access:image', self.image) |
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37 | return rv |
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38 | |
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39 | class lan_info: |
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40 | def __init__(self, name, cap=None, delay=None): |
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41 | self.name = name |
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42 | self.cap = cap |
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43 | self.delay = delay |
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44 | def __repr__(self): |
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45 | return "%s %s %s" % (self.name, self.cap, self.delay) |
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46 | |
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47 | class interface_info: |
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48 | def __init__(self, name, node, sub, cap=None, delay=None): |
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49 | self.name = name |
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50 | self.node = node |
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51 | self.sub = sub |
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52 | self.cap = cap |
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53 | self.delay = delay |
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54 | def __repr__(self): |
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55 | return "%s %s %s %s %s" % (self.name, self.node, self.sub, |
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56 | self.cap, self.delay) |
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57 | |
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58 | |
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59 | def __init__(self, boss, ops, cert): |
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60 | self.ctxt = fedd_ssl_context(my_cert=cert) |
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61 | self.ctxt.set_verify(SSL.verify_none, 10) |
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62 | self.boss = boss |
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63 | self.ops = ops |
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64 | self.null = """ |
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65 | set ns [new Simulator] |
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66 | source tb_compat.tcl |
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67 | |
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68 | set a [$ns node] |
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69 | |
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70 | $ns rtproto Session |
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71 | $ns run |
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72 | """ |
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73 | self.log = getattr(self, 'log', None) |
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74 | self.debug = getattr(self, 'debug', False) |
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75 | self.node = { } |
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76 | self.subs = { } |
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77 | self.interfaces = { } |
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78 | self.status = [ ] |
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79 | self.node_info = xmlrpc_emulab_segment.node_info |
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80 | self.lan_info = xmlrpc_emulab_segment.lan_info |
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81 | self.interface_info = xmlrpc_emulab_segment.interface_info |
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82 | |
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83 | def emulab_call(self, method, params): |
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84 | VERSION = 0.1 |
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85 | try: |
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86 | transport = SSL_Transport(self.ctxt) |
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87 | port = ServerProxy(self.boss, transport=transport) |
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88 | remote_method = getattr(port, method, None) |
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89 | if remote_method is not None: |
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90 | resp = remote_method(VERSION, params) |
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91 | else: |
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92 | raise service_error(service_error.internal, |
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93 | "Bad method: %s" % method) |
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94 | except socket_error, e: |
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95 | raise service_error(service_error.connect, |
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96 | "Cannot connect" % e) |
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97 | raise e |
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98 | except BIOError, e: |
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99 | if self.log: |
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100 | self.log.warn("BIO error: %s" % e) |
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101 | raise e |
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102 | except sslerror, e: |
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103 | if self.log: |
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104 | self.log.warn("SSL (socket) error: %s" % e) |
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105 | raise e |
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106 | except SSLError, e: |
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107 | if self.log: |
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108 | self.log.warn("SSL error: %s" % e) |
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109 | raise e |
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110 | except httplib.HTTPException, e: |
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111 | if self.log: |
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112 | self.log.warn("HTTP error: %s" % e) |
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113 | raise e |
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114 | except Fault, f: |
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115 | raise service_error(service_error.protocol, |
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116 | "Remote XMLRPC Fault: %s" % f) |
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117 | except Error, e: |
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118 | raise service_error(service_error.protocol, |
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119 | "Remote XMLRPC Fault: %s" % e) |
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120 | |
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121 | code = resp.get('code', -1) |
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122 | if code ==0: |
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123 | return (code, resp.get('value', None)) |
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124 | else: |
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125 | return (code, resp.get('output', None)) |
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126 | |
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127 | def get_state(self, pid, eid): |
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128 | """ |
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129 | Return the state of the experiment as reported by emulab |
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130 | """ |
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131 | |
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132 | if self.debug: |
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133 | state = 'swapped' |
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134 | else: |
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135 | params = { 'proj': pid, 'exp': eid } |
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136 | code, state = self.emulab_call('experiment.state', params) |
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137 | if code != 0: |
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138 | state = 'none' |
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139 | |
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140 | if self.log: |
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141 | self.log.debug("State is %s" % state) |
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142 | return state |
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143 | |
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144 | def make_null_experiment(self, pid, eid, tmpdir, gid=None): |
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145 | """ |
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146 | Create a null copy of the experiment so that we capture any logs there |
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147 | if the modify fails. Emulab software discards the logs from a failed |
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148 | startexp. |
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149 | """ |
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150 | |
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151 | if self.debug: |
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152 | if self.log: |
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153 | self.log.debug("[make_null_experiment]: " + \ |
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154 | "(debug) Creating experiment") |
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155 | return True |
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156 | else: |
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157 | params = { |
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158 | 'proj': pid, |
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159 | 'exp': eid, |
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160 | 'nsfilestr': self.null, |
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161 | 'batch': False, |
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162 | 'idleswap': 0, |
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163 | 'noidleswap_reason': 'Federated experiment', |
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164 | 'noswapin': True, |
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165 | 'wait': True |
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166 | } |
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167 | if gid is not None: |
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168 | params['group'] = gid |
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169 | if self.log: |
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170 | self.log.info("[make_null_experiment]: Creating experiment") |
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171 | code, value = self.emulab_call('experiment.startexp', params) |
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172 | |
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173 | if self.log: |
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174 | if code == 0: |
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175 | self.log.info('[make_null_experiment]: Create succeeded') |
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176 | else: |
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177 | self.log.error('[make_null_experiment]: Create failed: %s' \ |
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178 | % value) |
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179 | |
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180 | return code == 0 |
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181 | |
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182 | def swap_exp(self, pid, eid, direction='out', wait=True): |
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183 | """ |
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184 | Swap experiment in. |
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185 | """ |
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186 | if self.debug: |
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187 | if self.log: |
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188 | self.log.info("[swap_exp]: (debug) Swapping %s %s" % \ |
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189 | (eid, direction)) |
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190 | return True |
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191 | else: |
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192 | if self.log: |
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193 | self.log.info("[swap_exp]: Swapping %s %s" % (eid, direction)) |
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194 | params = { |
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195 | 'proj': pid, |
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196 | 'exp': eid, |
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197 | 'direction': direction, |
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198 | 'wait': wait, |
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199 | } |
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200 | code, value = self.emulab_call('experiment.swapexp', params) |
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201 | |
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202 | if self.log: |
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203 | if code == 0: self.log.info('[swap_exp]: Swap succeeded') |
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204 | else: self.log.error('[swap_exp]: Swap failed: %s' % value) |
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205 | |
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206 | return code == 0 |
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207 | |
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208 | def terminate_exp(self, pid, eid, wait=True): |
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209 | """ |
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210 | Completely terminate experiment |
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211 | """ |
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212 | if self.debug: |
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213 | if self.log: |
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214 | self.log.info("[swap_exp]: (debug) terminate %s" % eid) |
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215 | return True |
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216 | else: |
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217 | if self.log: |
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218 | self.log.info("[swap_exp]: Terminating %s" % eid) |
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219 | params = { |
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220 | 'proj': pid, |
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221 | 'exp': eid, |
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222 | 'wait': wait, |
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223 | } |
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224 | code, value = self.emulab_call('experiment.endexp', params) |
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225 | |
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226 | if self.log: |
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227 | if code == 0: self.log.info('[swap_exp]: Terminate succeeded') |
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228 | else: self.log.error('[swap_exp]: Terminate failed: %s' % value) |
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229 | |
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230 | return code == 0 |
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231 | |
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232 | def modify_exp(self, pid, eid, tcl, wait=True): |
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233 | if self.debug: |
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234 | self.log.info("[modify_exp]: (debug) Modifying %s" % eid) |
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235 | return True |
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236 | else: |
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237 | self.log.info("[modify_exp]: Modifying %s" % eid) |
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238 | params = { |
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239 | 'proj': pid, |
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240 | 'exp': eid, |
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241 | 'nsfilestr': tcl, |
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242 | 'wait': wait, |
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243 | 'reboot': True, |
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244 | 'restart_eventsys': True, |
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245 | } |
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246 | code, value = self.emulab_call('experiment.modify', params) |
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247 | if self.log: |
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248 | if code == 0: |
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249 | self.log.info('[modify_exp]: Modify succeeded') |
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250 | else: |
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251 | self.log.error('[modify_exp]: Modify failed: %s' \ |
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252 | % value) |
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253 | return code == 0 |
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254 | |
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255 | def get_osid_map(self): |
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256 | oses = { } |
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257 | code, osids = self.emulab_call('osid.getlist', {}) |
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258 | for key, val in osids.items(): |
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259 | val['imageid'] = key |
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260 | oses[val['osid']] = val |
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261 | return oses |
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262 | |
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263 | def get_links(self, pid, eid): |
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264 | params = { |
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265 | 'proj': pid, |
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266 | 'exp': eid, |
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267 | 'aspect': 'links' |
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268 | } |
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269 | code, links = self.emulab_call('experiment.info', params) |
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270 | if code ==0: |
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271 | lans = { } |
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272 | # Links contains per-interface information about all the LANs in |
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273 | # the emulab experiment. First construct the LANs, then look for |
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274 | # overrides. |
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275 | for i in links.values(): |
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276 | if i['name'] not in lans: |
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277 | lans[i['name']] = { 'cap': None, 'delay': None }; |
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278 | cap = max(i['bandwidth'], i['r_bandwidth']) |
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279 | delay = max(i['delay'], i['r_delay']) |
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280 | if delay == 0.0: delay = None |
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281 | if lans[i['name']]['cap'] is None or \ |
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282 | cap > lans[i['name']]['cap']: |
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283 | lans[i['name']]['cap'] = cap |
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284 | |
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285 | if (lans[i['name']]['delay'] is None and delay is not None) or \ |
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286 | delay > lans[i['name']]['delay']: |
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287 | lans[i['name']]['delay'] = delay |
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288 | |
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289 | for s, info in lans.items(): |
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290 | self.subs[s] = self.lan_info(s, info['cap'], info['delay']) |
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291 | |
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292 | # XXX: should deal better with r_delay != delay, etc |
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293 | for i in links.values(): |
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294 | li = self.subs[i['name']] |
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295 | cap = max(i['bandwidth'], i['r_bandwidth']) |
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296 | delay = max(i['delay'], i['r_delay']) |
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297 | if delay == 0.0: delay = None |
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298 | if cap != li.cap or delay != li.delay: |
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299 | node, dummy = i['member'].split(':', 1) |
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300 | self.interfaces[i['member']] = \ |
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301 | self.interface_info(i['member'], node, i['name'], |
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302 | cap, delay) |
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303 | |
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304 | if self.log: |
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305 | self.log.info("Link mapping complete") |
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306 | return True |
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307 | else: |
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308 | raise service_error(service_error.internal, |
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309 | "Cannot get link mapping of segment:%s/%s" % (pid, eid)) |
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310 | |
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311 | def get_nodes(self, pid, eid): |
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312 | |
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313 | ev_active = ('ISUP', 'ALWAYSUP' ) |
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314 | ev_starting = ('REBOOTED', 'REBOOTING','PXEBOOTING', |
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315 | 'BOOTING', 'RELOADSETUP', 'RELOADING', 'RELOADDONE', |
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316 | 'RELOADDONEV2', 'TBSETUP') |
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317 | ev_terminating = ( 'SHUTDOWN' ) |
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318 | |
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319 | osidmap = self.get_osid_map() |
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320 | |
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321 | params = { |
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322 | 'proj': pid, |
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323 | 'exp': eid, |
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324 | 'aspect': 'mapping' |
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325 | } |
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326 | code, nodes = self.emulab_call('experiment.info', params) |
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327 | if code ==0: |
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328 | for k, v in nodes.items(): |
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329 | if v.get('erole', False) and 'pnode' in v: |
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330 | st = v.get('status', 'up') |
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331 | ev = v.get('eventstatus', 'ISUP') |
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332 | os = v.get('osid', None) |
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333 | lname = "%s.%s.%s" % (k, eid, pid) |
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334 | |
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335 | if st == 'up': |
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336 | if ev in ev_active: st = 'active' |
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337 | elif ev in ev_starting: st = 'starting' |
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338 | elif ev in ev_terminating: st = 'terminating' |
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339 | else: st = 'failed' |
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340 | else: st = 'failed' |
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341 | |
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342 | if os and os in osidmap: |
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343 | osname = osidmap[os].get('OS', None) |
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344 | osversion = osidmap[os].get('version', None) |
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345 | osimage = "%s/%s" % \ |
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346 | ( osidmap[os].get('pid', ''), |
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347 | osidmap[os].get('imageid', '')) |
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348 | else: |
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349 | osname = osversion = osimage = None |
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350 | |
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351 | self.node[k] = self.node_info(k, v['pnode'], lname, |
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352 | st, osname, osversion, osimage) |
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353 | if self.log: |
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354 | self.log.info("Node mapping complete") |
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355 | return True |
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356 | else: |
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357 | raise service_error(service_error.internal, |
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358 | "Cannot get node mapping of segment:%s/%s" % (pid, eid)) |
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359 | |
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360 | def get_mapping(self, pid, eid): |
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361 | """ |
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362 | Get the physical to virtual mapping from the expinfo command and save |
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363 | it in the self.map member. |
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364 | """ |
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365 | |
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366 | if self.debug: |
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367 | if self.log: |
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368 | self.log.info("[get_mapping] (debug) Generating mapping") |
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369 | return True |
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370 | else: |
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371 | if self.log: |
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372 | self.log.info("[get_mapping] Generating mapping") |
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373 | self.get_nodes(pid, eid) |
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374 | self.get_links(pid, eid) |
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375 | return True |
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376 | |
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377 | def get_initial_image(self, node, top): |
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378 | for e in top.elements: |
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379 | if isinstance(e, topdl.Computer): |
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380 | if node == e.name: |
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381 | if e.os and len(e.os) == 1: |
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382 | return e.os[0].get_attribute( |
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383 | 'emulab_access:initial_image') |
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384 | return None |
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385 | |
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386 | |
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387 | def do_operation(self, op, lnode, pnode, params, top): |
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388 | """ |
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389 | Carry out operation on node in the given experiment. |
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390 | """ |
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391 | def get_param(params, name): |
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392 | if params is None: |
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393 | return None |
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394 | for d in params: |
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395 | if 'attribute' in d and d['attribute'] == name: |
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396 | return d.get('value', None) |
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397 | else: |
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398 | return None |
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399 | |
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400 | op = op.lower() |
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401 | |
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402 | if op == 'restore': |
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403 | state = get_param(params, 'state') |
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404 | if state is None: |
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405 | self.status.append(operation_status(lnode, |
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406 | operation_status.bad_param, 'No state to restore')) |
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407 | return False |
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408 | elif state == 'initial': |
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409 | image = self.get_initial_image(lnode, top) |
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410 | if image: |
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411 | pid, iid = image.split('/') |
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412 | p = {'nodes': pnode, 'imagename': iid, 'imageproj': pid, |
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413 | 'wait': False} |
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414 | code, result = self.emulab_call('node.reload', p) |
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415 | if code == 0: |
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416 | self.status.append(operation_status(lnode, |
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417 | operation_status.success, 'reloading')) |
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418 | return True |
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419 | else: |
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420 | self.status.append(operation_status(lnode, |
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421 | operation_status.federant, |
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422 | 'Error code: %d' % code)) |
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423 | return False |
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424 | else: |
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425 | self.status.append(operation_status(lnode, |
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426 | operation_status.federant, |
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427 | 'cannot find imageid??')) |
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428 | return False |
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429 | elif state == 'boot': |
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430 | p = {'nodes': pnode, 'wait': False} |
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431 | code, result = self.emulab_call('node.reboot', p) |
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432 | if code == 0: |
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433 | self.status.append(operation_status(lnode, |
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434 | operation_status.success, 'rebooting')) |
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435 | return True |
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436 | else: |
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437 | self.status.append(operation_status(lnode, |
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438 | operation_status.federant, 'Error code: %d' % code)) |
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439 | return False |
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440 | else: |
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441 | if '/' in state: |
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442 | pid, iid = state.split('/') |
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443 | else: |
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444 | pid = 'emulab-ops' |
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445 | iid = state |
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446 | |
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447 | p = {'nodes': pnode, 'imagename': iid, 'imageproj': pid, |
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448 | 'wait': False} |
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449 | code, result = self.emulab_call('node.reload', p) |
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450 | if code == 0: |
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451 | self.status.append(operation_status(lnode, |
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452 | operation_status.success, 'reloading')) |
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453 | return True |
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454 | else: |
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455 | self.status.append(operation_status(lnode, |
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456 | operation_status.federant, |
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457 | 'Error code: %d' % code)) |
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458 | return False |
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459 | else: |
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460 | self.status.append(operation_status(lnode, operation_status.unsupp)) |
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461 | return False |
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462 | |
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