kaouthera | 3f13ca2 | 2015-05-05 15:01:41 -0700 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | """ |
| 3 | Created on 26-Oct-2012 |
| 4 | |
| 5 | author: Anil Kumar ( anilkumar.s@paxterrasolutions.com ) |
| 6 | |
| 7 | |
| 8 | TestON is free software: you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation, either version 2 of the License, or |
| 11 | ( at your option ) any later version. |
| 12 | |
| 13 | TestON is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with TestON. If not, see <http://www.gnu.org/licenses/>. |
| 20 | |
| 21 | |
| 22 | MininetCliDriver is the basic driver which will handle the Mininet functions |
| 23 | |
| 24 | Some functions rely on STS module. To install this, |
| 25 | git clone https://github.com/jhall11/sts.git |
| 26 | |
| 27 | Some functions rely on a modified version of Mininet. These functions |
| 28 | should all be noted in the comments. To get this MN version run these commands |
| 29 | from within your Mininet folder: |
| 30 | git remote add jhall11 https://github.com/jhall11/mininet.git |
| 31 | git fetch jhall11 |
| 32 | git checkout -b dynamic_topo remotes/jhall11/dynamic_topo |
| 33 | git pull |
| 34 | |
| 35 | |
| 36 | Note that you may need to run 'sudo make develop' if your mnexec.c file |
| 37 | changed when switching branches.""" |
| 38 | import pexpect |
| 39 | import re |
| 40 | import sys |
| 41 | sys.path.append( "../" ) |
| 42 | from math import pow |
| 43 | from drivers.common.cli.emulatordriver import Emulator |
| 44 | |
| 45 | |
| 46 | class MininetCliDriver( Emulator ): |
| 47 | |
| 48 | """ |
| 49 | MininetCliDriver is the basic driver which will handle |
| 50 | the Mininet functions""" |
| 51 | def __init__( self ): |
| 52 | super( Emulator, self ).__init__() |
| 53 | self.handle = self |
| 54 | self.name = None |
| 55 | self.wrapped = sys.modules[ __name__ ] |
| 56 | self.flag = 0 |
| 57 | |
| 58 | def connect( self, **connectargs ): |
| 59 | """ |
| 60 | Here the main is the TestON instance after creating |
| 61 | all the log handles.""" |
| 62 | try: |
| 63 | for key in connectargs: |
| 64 | vars( self )[ key ] = connectargs[ key ] |
| 65 | |
| 66 | self.name = self.options[ 'name' ] |
| 67 | self.handle = super( |
| 68 | MininetCliDriver, |
| 69 | self ).connect( |
| 70 | user_name=self.user_name, |
| 71 | ip_address=self.ip_address, |
| 72 | port=None, |
| 73 | pwd=self.pwd ) |
| 74 | |
| 75 | if self.handle: |
| 76 | main.log.info( "Connection successful to the host " + |
| 77 | self.user_name + |
| 78 | "@" + |
| 79 | self.ip_address ) |
| 80 | return main.TRUE |
| 81 | else: |
| 82 | main.log.error( "Connection failed to the host " + |
| 83 | self.user_name + |
| 84 | "@" + |
| 85 | self.ip_address ) |
| 86 | main.log.error( "Failed to connect to the Mininet CLI" ) |
| 87 | return main.FALSE |
| 88 | except pexpect.EOF: |
| 89 | main.log.error( self.name + ": EOF exception found" ) |
| 90 | main.log.error( self.name + ": " + self.handle.before ) |
| 91 | main.cleanup() |
| 92 | main.exit() |
| 93 | except Exception: |
| 94 | main.log.exception( self.name + ": Uncaught exception!" ) |
| 95 | main.cleanup() |
| 96 | main.exit() |
| 97 | |
| 98 | def startNet( self, topoFile='', args='', timeout=120 ): |
| 99 | """ |
| 100 | Starts Mininet accepts a topology(.py) file and/or an optional |
| 101 | argument ,to start the mininet, as a parameter. |
| 102 | Returns main.TRUE if the mininet starts successfully and |
| 103 | main.FALSE otherwise |
| 104 | """ |
| 105 | if self.handle: |
| 106 | # make sure old networks are cleaned up |
| 107 | main.log.info( self.name + |
| 108 | ": Clearing any residual state or processes" ) |
| 109 | self.handle.sendline( "sudo mn -c" ) |
| 110 | i = self.handle.expect( [ 'password\sfor\s', |
| 111 | 'Cleanup\scomplete', |
| 112 | pexpect.EOF, |
| 113 | pexpect.TIMEOUT ], |
| 114 | timeout ) |
| 115 | if i == 0: |
| 116 | # Sudo asking for password |
| 117 | main.log.info( self.name + ": Sending sudo password" ) |
| 118 | self.handle.sendline( self.pwd ) |
| 119 | i = self.handle.expect( [ '%s:' % self.user, |
| 120 | '\$', |
| 121 | pexpect.EOF, |
| 122 | pexpect.TIMEOUT ], |
| 123 | timeout ) |
| 124 | if i == 1: |
| 125 | main.log.info( self.name + ": Clean" ) |
| 126 | elif i == 2: |
| 127 | main.log.error( self.name + ": Connection terminated" ) |
| 128 | elif i == 3: # timeout |
| 129 | main.log.error( self.name + ": Something while cleaning " + |
| 130 | "Mininet took too long... " ) |
| 131 | # Craft the string to start mininet |
| 132 | cmdString = "sudo " |
| 133 | if topoFile is None or topoFile == '': # If no file is given |
| 134 | main.log.info( self.name + ": building fresh Mininet" ) |
| 135 | cmdString += "mn " |
| 136 | if args is None or args == '': |
| 137 | # If no args given, use args from .topo file |
| 138 | args = self.options[ 'arg1' ] +\ |
| 139 | " " + self.options[ 'arg2' ] +\ |
| 140 | " --mac --controller " +\ |
| 141 | self.options[ 'controller' ] + " " +\ |
| 142 | self.options[ 'arg3' ] |
| 143 | else: # else only use given args |
| 144 | pass |
| 145 | # TODO: allow use of topo args and method args? |
| 146 | else: # Use given topology file |
| 147 | main.log.info( "Starting Mininet from topo file " + topoFile ) |
| 148 | cmdString += topoFile + " " |
| 149 | if args is None: |
| 150 | args = '' |
| 151 | # TODO: allow use of args from .topo file? |
| 152 | cmdString += args |
| 153 | # Send the command and check if network started |
| 154 | self.handle.sendline( "" ) |
| 155 | self.handle.expect( '\$' ) |
| 156 | main.log.info( "Sending '" + cmdString + "' to " + self.name ) |
| 157 | self.handle.sendline( cmdString ) |
| 158 | while True: |
| 159 | i = self.handle.expect( [ 'mininet>', |
| 160 | 'Exception', |
| 161 | '\*\*\*', |
| 162 | pexpect.EOF, |
| 163 | pexpect.TIMEOUT ], |
| 164 | timeout ) |
| 165 | if i == 0: |
| 166 | main.log.info( self.name + ": Mininet built" ) |
| 167 | return main.TRUE |
| 168 | elif i == 1: |
| 169 | response = str( self.handle.before + |
| 170 | self.handle.after ) |
| 171 | self.handle.expect( '\$' ) |
| 172 | response += str( self.handle.before + |
| 173 | self.handle.after ) |
| 174 | main.log.error( |
| 175 | self.name + |
| 176 | ": Launching Mininet failed: " + response ) |
| 177 | return main.FALSE |
| 178 | elif i == 2: |
| 179 | self.handle.expect( [ "\n", |
| 180 | pexpect.EOF, |
| 181 | pexpect.TIMEOUT ], |
| 182 | timeout ) |
| 183 | main.log.info( self.handle.before ) |
| 184 | elif i == 3: |
| 185 | main.log.error( self.name + ": Connection timeout" ) |
| 186 | return main.FALSE |
| 187 | elif i == 4: # timeout |
| 188 | main.log.error( |
| 189 | self.name + |
| 190 | ": Something took too long... " ) |
| 191 | return main.FALSE |
| 192 | # Why did we hit this part? |
| 193 | main.log.error( "startNet did not return correctly" ) |
| 194 | return main.FASLE |
| 195 | else: # if no handle |
| 196 | main.log.error( self.name + ": Connection failed to the host " + |
| 197 | self.user_name + "@" + self.ip_address ) |
| 198 | main.log.error( self.name + ": Failed to connect to the Mininet" ) |
| 199 | return main.FALSE |
| 200 | |
| 201 | def numSwitchesNlinks( self, topoType, depth, fanout ): |
| 202 | if topoType == 'tree': |
| 203 | # In tree topology, if fanout arg is not given, by default it is 2 |
| 204 | if fanout is None: |
| 205 | fanout = 2 |
| 206 | k = 0 |
| 207 | count = 0 |
| 208 | while( k <= depth - 1 ): |
| 209 | count = count + pow( fanout, k ) |
| 210 | k = k + 1 |
| 211 | numSwitches = count |
| 212 | while( k <= depth - 2 ): |
| 213 | # depth-2 gives you only core links and not considering |
| 214 | # edge links as seen by ONOS. If all the links including |
| 215 | # edge links are required, do depth-1 |
| 216 | count = count + pow( fanout, k ) |
| 217 | k = k + 1 |
| 218 | numLinks = count * fanout |
| 219 | # print "num_switches for %s(%d,%d) = %d and links=%d" %( |
| 220 | # topoType,depth,fanout,numSwitches,numLinks ) |
| 221 | |
| 222 | elif topoType == 'linear': |
| 223 | # In linear topology, if fanout or numHostsPerSw is not given, |
| 224 | # by default it is 1 |
| 225 | if fanout is None: |
| 226 | fanout = 1 |
| 227 | numSwitches = depth |
| 228 | numHostsPerSw = fanout |
| 229 | totalNumHosts = numSwitches * numHostsPerSw |
| 230 | numLinks = totalNumHosts + ( numSwitches - 1 ) |
| 231 | print "num_switches for %s(%d,%d) = %d and links=%d" %\ |
| 232 | ( topoType, depth, fanout, numSwitches, numLinks ) |
| 233 | topoDict = { "num_switches": int( numSwitches ), |
| 234 | "num_corelinks": int( numLinks ) } |
| 235 | return topoDict |
| 236 | |
| 237 | def calculateSwAndLinks( self ): |
| 238 | """ |
| 239 | Calculate the number of switches and links in a topo.""" |
| 240 | # TODO: combine this function and numSwitchesNlinks |
| 241 | argList = self.options[ 'arg1' ].split( "," ) |
| 242 | topoArgList = argList[ 0 ].split( " " ) |
| 243 | argList = map( int, argList[ 1: ] ) |
| 244 | topoArgList = topoArgList[ 1: ] + argList |
| 245 | |
| 246 | topoDict = self.numSwitchesNlinks( *topoArgList ) |
| 247 | return topoDict |
| 248 | |
| 249 | def pingall( self, timeout=300, shortCircuit=False, acceptableFailed=0): |
| 250 | """ |
| 251 | Verifies the reachability of the hosts using pingall command. |
| 252 | Optional parameter timeout allows you to specify how long to |
| 253 | wait for pingall to complete |
| 254 | Optional: |
| 255 | timeout(seconds) - This is the pexpect timeout; The function will |
| 256 | timeout if the amount of time between failed |
| 257 | pings exceedes this time and pingall is still |
| 258 | running |
| 259 | shortCircuit - Break the pingall based on the number of failed hosts |
| 260 | ping |
| 261 | acceptableFailed - Set the number of acceptable failed pings for the |
| 262 | function to still return main.TRUE |
| 263 | Returns: |
| 264 | main.TRUE if pingall completes with no pings dropped |
| 265 | otherwise main.FALSE""" |
| 266 | try: |
| 267 | if self.handle: |
| 268 | main.log.info( |
| 269 | self.name + |
| 270 | ": Checking reachabilty to the hosts using pingall" ) |
| 271 | response = "" |
| 272 | failedPings = 0 |
| 273 | returnValue = main.TRUE |
| 274 | self.handle.sendline( "pingall" ) |
| 275 | while True: |
| 276 | i = self.handle.expect( [ "mininet>","X", |
| 277 | pexpect.EOF, |
| 278 | pexpect.TIMEOUT ], |
| 279 | timeout ) |
| 280 | if i == 0: |
| 281 | main.log.info( self.name + ": pingall finished") |
| 282 | response += self.handle.before |
| 283 | break |
| 284 | elif i == 1: |
| 285 | response += self.handle.before + self.handle.after |
| 286 | failedPings = failedPings + 1 |
| 287 | if failedPings > acceptableFailed: |
| 288 | returnValue = main.FALSE |
| 289 | if shortCircuit: |
| 290 | main.log.error( self.name + |
| 291 | ": Aborting pingall - " |
| 292 | + str( failedPings ) + |
| 293 | " pings failed" ) |
| 294 | break |
| 295 | elif i == 2: |
| 296 | main.log.error( self.name + |
| 297 | ": EOF exception found" ) |
| 298 | main.log.error( self.name + ": " + |
| 299 | self.handle.before ) |
| 300 | main.cleanup() |
| 301 | main.exit() |
| 302 | elif i == 3: |
| 303 | response += self.handle.before |
| 304 | main.log.error( self.name + |
| 305 | ": TIMEOUT exception found" ) |
| 306 | main.log.error( self.name + |
| 307 | ": " + |
| 308 | str( response ) ) |
| 309 | # NOTE: Send ctrl-c to make sure pingall is done |
| 310 | self.handle.sendline( "\x03" ) |
| 311 | self.handle.expect( "Interrupt" ) |
| 312 | self.handle.expect( "mininet>" ) |
| 313 | break |
| 314 | pattern = "Results\:" |
| 315 | main.log.info( "Pingall output: " + str( response ) ) |
| 316 | if re.search( pattern, response ): |
| 317 | main.log.info( self.name + ": Pingall finished with " |
| 318 | + str( failedPings ) + " failed pings" ) |
| 319 | return returnValue |
| 320 | else: |
| 321 | # NOTE: Send ctrl-c to make sure pingall is done |
| 322 | self.handle.sendline( "\x03" ) |
| 323 | self.handle.expect( "Interrupt" ) |
| 324 | self.handle.expect( "mininet>" ) |
| 325 | return main.FALSE |
| 326 | else: |
| 327 | main.log.error( self.name + ": Connection failed to the host" ) |
| 328 | main.cleanup() |
| 329 | main.exit() |
| 330 | except pexpect.TIMEOUT: |
| 331 | if response: |
| 332 | main.log.info( "Pingall output: " + str( response ) ) |
| 333 | main.log.error( self.name + ": pexpect.TIMEOUT found" ) |
| 334 | return main.FALSE |
| 335 | except pexpect.EOF: |
| 336 | main.log.error( self.name + ": EOF exception found" ) |
| 337 | main.log.error( self.name + ": " + self.handle.before ) |
| 338 | main.cleanup() |
| 339 | main.exit() |
| 340 | |
| 341 | def fpingHost( self, **pingParams ): |
| 342 | """ |
| 343 | Uses the fping package for faster pinging... |
| 344 | *requires fping to be installed on machine running mininet""" |
| 345 | args = utilities.parse_args( [ "SRC", "TARGET" ], **pingParams ) |
| 346 | command = args[ "SRC" ] + \ |
| 347 | " fping -i 100 -t 20 -C 1 -q " + args[ "TARGET" ] |
| 348 | self.handle.sendline( command ) |
| 349 | self.handle.expect( |
| 350 | [ args[ "TARGET" ], pexpect.EOF, pexpect.TIMEOUT ] ) |
| 351 | self.handle.expect( [ "mininet", pexpect.EOF, pexpect.TIMEOUT ] ) |
| 352 | response = self.handle.before |
| 353 | if re.search( ":\s-", response ): |
| 354 | main.log.info( self.name + ": Ping fail" ) |
| 355 | return main.FALSE |
| 356 | elif re.search( ":\s\d{1,2}\.\d\d", response ): |
| 357 | main.log.info( self.name + ": Ping good!" ) |
| 358 | return main.TRUE |
| 359 | main.log.info( self.name + ": Install fping on mininet machine... " ) |
| 360 | main.log.info( self.name + ": \n---\n" + response ) |
| 361 | return main.FALSE |
| 362 | |
| 363 | def pingHost( self, **pingParams ): |
| 364 | """ |
| 365 | Ping from one mininet host to another |
| 366 | Currently the only supported Params: SRC and TARGET""" |
| 367 | args = utilities.parse_args( [ "SRC", "TARGET" ], **pingParams ) |
| 368 | command = args[ "SRC" ] + " ping " + \ |
| 369 | args[ "TARGET" ] + " -c 1 -i 1 -W 8" |
| 370 | try: |
| 371 | main.log.info( "Sending: " + command ) |
| 372 | self.handle.sendline( command ) |
| 373 | i = self.handle.expect( [ command, pexpect.TIMEOUT ] ) |
| 374 | if i == 1: |
| 375 | main.log.error( |
| 376 | self.name + |
| 377 | ": timeout when waiting for response from mininet" ) |
| 378 | main.log.error( "response: " + str( self.handle.before ) ) |
| 379 | i = self.handle.expect( [ "mininet>", pexpect.TIMEOUT ] ) |
| 380 | if i == 1: |
| 381 | main.log.error( |
| 382 | self.name + |
| 383 | ": timeout when waiting for response from mininet" ) |
| 384 | main.log.error( "response: " + str( self.handle.before ) ) |
| 385 | response = self.handle.before |
| 386 | except pexpect.EOF: |
| 387 | main.log.error( self.name + ": EOF exception found" ) |
| 388 | main.log.error( self.name + ": " + self.handle.before ) |
| 389 | main.cleanup() |
| 390 | main.exit() |
| 391 | main.log.info( self.name + ": Ping Response: " + response ) |
| 392 | if re.search( ',\s0\%\spacket\sloss', response ): |
| 393 | main.log.info( self.name + ": no packets lost, host is reachable" ) |
| 394 | main.lastResult = main.TRUE |
| 395 | return main.TRUE |
| 396 | else: |
| 397 | main.log.error( |
| 398 | self.name + |
| 399 | ": PACKET LOST, HOST IS NOT REACHABLE" ) |
| 400 | main.lastResult = main.FALSE |
| 401 | return main.FALSE |
| 402 | |
| 403 | def checkIP( self, host ): |
| 404 | """ |
| 405 | Verifies the host's ip configured or not.""" |
| 406 | if self.handle: |
| 407 | try: |
| 408 | response = self.execute( |
| 409 | cmd=host + |
| 410 | " ifconfig", |
| 411 | prompt="mininet>", |
| 412 | timeout=10 ) |
| 413 | except pexpect.EOF: |
| 414 | main.log.error( self.name + ": EOF exception found" ) |
| 415 | main.log.error( self.name + ": " + self.handle.before ) |
| 416 | main.cleanup() |
| 417 | main.exit() |
| 418 | |
| 419 | pattern = "inet\s(addr|Mask):([0-1]{1}[0-9]{1,2}|" +\ |
| 420 | "2[0-4][0-9]|25[0-5]|[0-9]{1,2}).([0-1]{1}" +\ |
| 421 | "[0-9]{1,2}|2[0-4][0-9]|25[0-5]|[0-9]{1,2})." +\ |
| 422 | "([0-1]{1}[0-9]{1,2}|2[0-4][0-9]|25[0-5]|" +\ |
| 423 | "[0-9]{1,2}).([0-1]{1}[0-9]{1,2}|2[0-4]" +\ |
| 424 | "[0-9]|25[0-5]|[0-9]{1,2})" |
| 425 | # pattern = "inet addr:10.0.0.6" |
| 426 | if re.search( pattern, response ): |
| 427 | main.log.info( self.name + ": Host Ip configured properly" ) |
| 428 | return main.TRUE |
| 429 | else: |
| 430 | main.log.error( self.name + ": Host IP not found" ) |
| 431 | return main.FALSE |
| 432 | else: |
| 433 | main.log.error( self.name + ": Connection failed to the host" ) |
| 434 | |
| 435 | def verifySSH( self, **connectargs ): |
| 436 | # FIXME: Who uses this and what is the purpose? seems very specific |
| 437 | try: |
| 438 | response = self.execute( |
| 439 | cmd="h1 /usr/sbin/sshd -D&", |
| 440 | prompt="mininet>", |
| 441 | timeout=10 ) |
| 442 | response = self.execute( |
| 443 | cmd="h4 /usr/sbin/sshd -D&", |
| 444 | prompt="mininet>", |
| 445 | timeout=10 ) |
| 446 | for key in connectargs: |
| 447 | vars( self )[ key ] = connectargs[ key ] |
| 448 | response = self.execute( |
| 449 | cmd="xterm h1 h4 ", |
| 450 | prompt="mininet>", |
| 451 | timeout=10 ) |
| 452 | except pexpect.EOF: |
| 453 | main.log.error( self.name + ": EOF exception found" ) |
| 454 | main.log.error( self.name + ": " + self.handle.before ) |
| 455 | main.cleanup() |
| 456 | main.exit() |
| 457 | import time |
| 458 | time.sleep( 20 ) |
| 459 | if self.flag == 0: |
| 460 | self.flag = 1 |
| 461 | return main.FALSE |
| 462 | else: |
| 463 | return main.TRUE |
| 464 | |
| 465 | def moveHost( self, host, oldSw, newSw, ): |
| 466 | """ |
| 467 | Moves a host from one switch to another on the fly |
| 468 | Note: The intf between host and oldSw when detached |
| 469 | using detach(), will still show up in the 'net' |
| 470 | cmd, because switch.detach() doesn't affect switch.intfs[] |
| 471 | (which is correct behavior since the interfaces |
| 472 | haven't moved). |
| 473 | """ |
| 474 | if self.handle: |
| 475 | try: |
| 476 | # Bring link between oldSw-host down |
| 477 | cmd = "py net.configLinkStatus('" + oldSw + "'," + "'"+ host +\ |
| 478 | "'," + "'down')" |
| 479 | print "cmd1= ", cmd |
| 480 | response = self.execute( cmd=cmd, |
| 481 | prompt="mininet>", |
| 482 | timeout=10 ) |
| 483 | |
| 484 | # Determine hostintf and Oldswitchintf |
| 485 | cmd = "px hintf,sintf = " + host + ".connectionsTo(" + oldSw +\ |
| 486 | ")[0]" |
| 487 | print "cmd2= ", cmd |
| 488 | self.handle.sendline( cmd ) |
| 489 | self.handle.expect( "mininet>" ) |
| 490 | |
| 491 | # Determine ip and mac address of the host-oldSw interface |
| 492 | cmd = "px ipaddr = hintf.IP()" |
| 493 | print "cmd3= ", cmd |
| 494 | self.handle.sendline( cmd ) |
| 495 | self.handle.expect( "mininet>" ) |
| 496 | |
| 497 | cmd = "px macaddr = hintf.MAC()" |
| 498 | print "cmd3= ", cmd |
| 499 | self.handle.sendline( cmd ) |
| 500 | self.handle.expect( "mininet>" ) |
| 501 | |
| 502 | # Detach interface between oldSw-host |
| 503 | cmd = "px " + oldSw + ".detach( sintf )" |
| 504 | print "cmd4= ", cmd |
| 505 | self.handle.sendline( cmd ) |
| 506 | self.handle.expect( "mininet>" ) |
| 507 | |
| 508 | # Add link between host-newSw |
| 509 | cmd = "py net.addLink(" + host + "," + newSw + ")" |
| 510 | print "cmd5= ", cmd |
| 511 | self.handle.sendline( cmd ) |
| 512 | self.handle.expect( "mininet>" ) |
| 513 | |
| 514 | # Determine hostintf and Newswitchintf |
| 515 | cmd = "px hintf,sintf = " + host + ".connectionsTo(" + newSw +\ |
| 516 | ")[0]" |
| 517 | print "cmd6= ", cmd |
| 518 | self.handle.sendline( cmd ) |
| 519 | self.handle.expect( "mininet>" ) |
| 520 | |
| 521 | # Attach interface between newSw-host |
| 522 | cmd = "px " + newSw + ".attach( sintf )" |
| 523 | print "cmd3= ", cmd |
| 524 | self.handle.sendline( cmd ) |
| 525 | self.handle.expect( "mininet>" ) |
| 526 | |
| 527 | # Set ipaddress of the host-newSw interface |
| 528 | cmd = "px " + host + ".setIP( ip = ipaddr, intf = hintf)" |
| 529 | print "cmd7 = ", cmd |
| 530 | self.handle.sendline( cmd ) |
| 531 | self.handle.expect( "mininet>" ) |
| 532 | |
| 533 | # Set macaddress of the host-newSw interface |
| 534 | cmd = "px " + host + ".setMAC( mac = macaddr, intf = hintf)" |
| 535 | print "cmd8 = ", cmd |
| 536 | self.handle.sendline( cmd ) |
| 537 | self.handle.expect( "mininet>" ) |
| 538 | |
| 539 | cmd = "net" |
| 540 | print "cmd9 = ", cmd |
| 541 | self.handle.sendline( cmd ) |
| 542 | self.handle.expect( "mininet>" ) |
| 543 | print "output = ", self.handle.before |
| 544 | |
| 545 | # Determine ipaddress of the host-newSw interface |
| 546 | cmd = host + " ifconfig" |
| 547 | print "cmd10= ", cmd |
| 548 | self.handle.sendline( cmd ) |
| 549 | self.handle.expect( "mininet>" ) |
| 550 | print "ifconfig o/p = ", self.handle.before |
| 551 | |
| 552 | return main.TRUE |
| 553 | except pexpect.EOF: |
| 554 | main.log.error( self.name + ": EOF exception found" ) |
| 555 | main.log.error( self.name + ": " + self.handle.before ) |
| 556 | return main.FALSE |
| 557 | |
| 558 | def changeIP( self, host, intf, newIP, newNetmask ): |
| 559 | """ |
| 560 | Changes the ip address of a host on the fly |
| 561 | Ex: h2 ifconfig h2-eth0 10.0.1.2 netmask 255.255.255.0""" |
| 562 | if self.handle: |
| 563 | try: |
| 564 | cmd = host + " ifconfig " + intf + " " + \ |
| 565 | newIP + " " + 'netmask' + " " + newNetmask |
| 566 | self.handle.sendline( cmd ) |
| 567 | self.handle.expect( "mininet>" ) |
| 568 | response = self.handle.before |
| 569 | main.log.info( "response = " + response ) |
| 570 | main.log.info( |
| 571 | "Ip of host " + |
| 572 | host + |
| 573 | " changed to new IP " + |
| 574 | newIP ) |
| 575 | return main.TRUE |
| 576 | except pexpect.EOF: |
| 577 | main.log.error( self.name + ": EOF exception found" ) |
| 578 | main.log.error( self.name + ": " + self.handle.before ) |
| 579 | return main.FALSE |
| 580 | |
| 581 | def changeDefaultGateway( self, host, newGW ): |
| 582 | """ |
| 583 | Changes the default gateway of a host |
| 584 | Ex: h1 route add default gw 10.0.1.2""" |
| 585 | if self.handle: |
| 586 | try: |
| 587 | cmd = host + " route add default gw " + newGW |
| 588 | self.handle.sendline( cmd ) |
| 589 | self.handle.expect( "mininet>" ) |
| 590 | response = self.handle.before |
| 591 | main.log.info( "response = " + response ) |
| 592 | main.log.info( |
| 593 | "Default gateway of host " + |
| 594 | host + |
| 595 | " changed to " + |
| 596 | newGW ) |
| 597 | return main.TRUE |
| 598 | except pexpect.EOF: |
| 599 | main.log.error( self.name + ": EOF exception found" ) |
| 600 | main.log.error( self.name + ": " + self.handle.before ) |
| 601 | return main.FALSE |
| 602 | |
| 603 | def addStaticMACAddress( self, host, GW, macaddr ): |
| 604 | """ |
| 605 | Changes the mac address of a gateway host""" |
| 606 | if self.handle: |
| 607 | try: |
| 608 | # h1 arp -s 10.0.1.254 00:00:00:00:11:11 |
| 609 | cmd = host + " arp -s " + GW + " " + macaddr |
| 610 | self.handle.sendline( cmd ) |
| 611 | self.handle.expect( "mininet>" ) |
| 612 | response = self.handle.before |
| 613 | main.log.info( "response = " + response ) |
| 614 | main.log.info( |
| 615 | "Mac address of gateway " + |
| 616 | GW + |
| 617 | " changed to " + |
| 618 | macaddr ) |
| 619 | return main.TRUE |
| 620 | except pexpect.EOF: |
| 621 | main.log.error( self.name + ": EOF exception found" ) |
| 622 | main.log.error( self.name + ": " + self.handle.before ) |
| 623 | return main.FALSE |
| 624 | |
| 625 | def verifyStaticGWandMAC( self, host ): |
| 626 | """ |
| 627 | Verify if the static gateway and mac address assignment""" |
| 628 | if self.handle: |
| 629 | try: |
| 630 | # h1 arp -an |
| 631 | cmd = host + " arp -an " |
| 632 | self.handle.sendline( cmd ) |
| 633 | self.handle.expect( "mininet>" ) |
| 634 | response = self.handle.before |
| 635 | main.log.info( host + " arp -an = " + response ) |
| 636 | return main.TRUE |
| 637 | except pexpect.EOF: |
| 638 | main.log.error( self.name + ": EOF exception found" ) |
| 639 | main.log.error( self.name + ": " + self.handle.before ) |
| 640 | return main.FALSE |
| 641 | |
| 642 | def getMacAddress( self, host ): |
| 643 | """ |
| 644 | Verifies the host's ip configured or not.""" |
| 645 | if self.handle: |
| 646 | try: |
| 647 | response = self.execute( |
| 648 | cmd=host + |
| 649 | " ifconfig", |
| 650 | prompt="mininet>", |
| 651 | timeout=10 ) |
| 652 | except pexpect.EOF: |
| 653 | main.log.error( self.name + ": EOF exception found" ) |
| 654 | main.log.error( self.name + ": " + self.handle.before ) |
| 655 | main.cleanup() |
| 656 | main.exit() |
| 657 | |
| 658 | pattern = r'HWaddr\s([0-9A-F]{2}[:-]){5}([0-9A-F]{2})' |
| 659 | macAddressSearch = re.search( pattern, response, re.I ) |
| 660 | macAddress = macAddressSearch.group().split( " " )[ 1 ] |
| 661 | main.log.info( |
| 662 | self.name + |
| 663 | ": Mac-Address of Host " + |
| 664 | host + |
| 665 | " is " + |
| 666 | macAddress ) |
| 667 | return macAddress |
| 668 | else: |
| 669 | main.log.error( self.name + ": Connection failed to the host" ) |
| 670 | |
| 671 | def getInterfaceMACAddress( self, host, interface ): |
| 672 | """ |
| 673 | Return the IP address of the interface on the given host""" |
| 674 | if self.handle: |
| 675 | try: |
| 676 | response = self.execute( cmd=host + " ifconfig " + interface, |
| 677 | prompt="mininet>", timeout=10 ) |
| 678 | except pexpect.EOF: |
| 679 | main.log.error( self.name + ": EOF exception found" ) |
| 680 | main.log.error( self.name + ": " + self.handle.before ) |
| 681 | main.cleanup() |
| 682 | main.exit() |
| 683 | |
| 684 | pattern = r'HWaddr\s([0-9A-F]{2}[:-]){5}([0-9A-F]{2})' |
| 685 | macAddressSearch = re.search( pattern, response, re.I ) |
| 686 | if macAddressSearch is None: |
| 687 | main.log.info( "No mac address found in %s" % response ) |
| 688 | return main.FALSE |
| 689 | macAddress = macAddressSearch.group().split( " " )[ 1 ] |
| 690 | main.log.info( |
| 691 | "Mac-Address of " + |
| 692 | host + |
| 693 | ":" + |
| 694 | interface + |
| 695 | " is " + |
| 696 | macAddress ) |
| 697 | return macAddress |
| 698 | else: |
| 699 | main.log.error( "Connection failed to the host" ) |
| 700 | |
| 701 | def getIPAddress( self, host ): |
| 702 | """ |
| 703 | Verifies the host's ip configured or not.""" |
| 704 | if self.handle: |
| 705 | try: |
| 706 | response = self.execute( |
| 707 | cmd=host + |
| 708 | " ifconfig", |
| 709 | prompt="mininet>", |
| 710 | timeout=10 ) |
| 711 | except pexpect.EOF: |
| 712 | main.log.error( self.name + ": EOF exception found" ) |
| 713 | main.log.error( self.name + ": " + self.handle.before ) |
| 714 | main.cleanup() |
| 715 | main.exit() |
| 716 | |
| 717 | pattern = "inet\saddr:(\d+\.\d+\.\d+\.\d+)" |
| 718 | ipAddressSearch = re.search( pattern, response ) |
| 719 | main.log.info( |
| 720 | self.name + |
| 721 | ": IP-Address of Host " + |
| 722 | host + |
| 723 | " is " + |
| 724 | ipAddressSearch.group( 1 ) ) |
| 725 | return ipAddressSearch.group( 1 ) |
| 726 | else: |
| 727 | main.log.error( self.name + ": Connection failed to the host" ) |
| 728 | |
| 729 | def getSwitchDPID( self, switch ): |
| 730 | """ |
| 731 | return the datapath ID of the switch""" |
| 732 | if self.handle: |
| 733 | cmd = "py %s.dpid" % switch |
| 734 | try: |
| 735 | response = self.execute( |
| 736 | cmd=cmd, |
| 737 | prompt="mininet>", |
| 738 | timeout=10 ) |
| 739 | except pexpect.EOF: |
| 740 | main.log.error( self.name + ": EOF exception found" ) |
| 741 | main.log.error( self.name + ": " + self.handle.before ) |
| 742 | main.cleanup() |
| 743 | main.exit() |
| 744 | pattern = r'^(?P<dpid>\w)+' |
| 745 | result = re.search( pattern, response, re.MULTILINE ) |
| 746 | if result is None: |
| 747 | main.log.info( |
| 748 | "Couldn't find DPID for switch %s, found: %s" % |
| 749 | ( switch, response ) ) |
| 750 | return main.FALSE |
| 751 | return str( result.group( 0 ) ).lower() |
| 752 | else: |
| 753 | main.log.error( "Connection failed to the host" ) |
| 754 | |
| 755 | def getDPID( self, switch ): |
| 756 | if self.handle: |
| 757 | self.handle.sendline( "" ) |
| 758 | self.expect( "mininet>" ) |
| 759 | cmd = "py %s.dpid" % switch |
| 760 | try: |
| 761 | response = self.execute( |
| 762 | cmd=cmd, |
| 763 | prompt="mininet>", |
| 764 | timeout=10 ) |
| 765 | self.handle.expect( "mininet>" ) |
| 766 | response = self.handle.before |
| 767 | return response |
| 768 | except pexpect.EOF: |
| 769 | main.log.error( self.name + ": EOF exception found" ) |
| 770 | main.log.error( self.name + ": " + self.handle.before ) |
| 771 | main.cleanup() |
| 772 | main.exit() |
| 773 | |
| 774 | def getInterfaces( self, node ): |
| 775 | """ |
| 776 | return information dict about interfaces connected to the node""" |
| 777 | if self.handle: |
| 778 | cmd = 'py "\\n".join(["name=%s,mac=%s,ip=%s,enabled=%s"' +\ |
| 779 | ' % (i.name, i.MAC(), i.IP(), i.isUp())' |
| 780 | cmd += ' for i in %s.intfs.values()])' % node |
| 781 | try: |
| 782 | response = self.execute( |
| 783 | cmd=cmd, |
| 784 | prompt="mininet>", |
| 785 | timeout=10 ) |
| 786 | except pexpect.EOF: |
| 787 | main.log.error( self.name + ": EOF exception found" ) |
| 788 | main.log.error( self.name + ": " + self.handle.before ) |
| 789 | main.cleanup() |
| 790 | main.exit() |
| 791 | return response |
| 792 | else: |
| 793 | main.log.error( "Connection failed to the node" ) |
| 794 | |
| 795 | def dump( self ): |
| 796 | main.log.info( self.name + ": Dump node info" ) |
| 797 | try: |
| 798 | response = self.execute( |
| 799 | cmd='dump', |
| 800 | prompt='mininet>', |
| 801 | timeout=10 ) |
| 802 | except pexpect.EOF: |
| 803 | main.log.error( self.name + ": EOF exception found" ) |
| 804 | main.log.error( self.name + ": " + self.handle.before ) |
| 805 | main.cleanup() |
| 806 | main.exit() |
| 807 | return response |
| 808 | |
| 809 | def intfs( self ): |
| 810 | main.log.info( self.name + ": List interfaces" ) |
| 811 | try: |
| 812 | response = self.execute( |
| 813 | cmd='intfs', |
| 814 | prompt='mininet>', |
| 815 | timeout=10 ) |
| 816 | except pexpect.EOF: |
| 817 | main.log.error( self.name + ": EOF exception found" ) |
| 818 | main.log.error( self.name + ": " + self.handle.before ) |
| 819 | main.cleanup() |
| 820 | main.exit() |
| 821 | return response |
| 822 | |
| 823 | def net( self ): |
| 824 | main.log.info( self.name + ": List network connections" ) |
| 825 | try: |
| 826 | response = self.execute( cmd='net', prompt='mininet>', timeout=10 ) |
| 827 | except pexpect.EOF: |
| 828 | main.log.error( self.name + ": EOF exception found" ) |
| 829 | main.log.error( self.name + ": " + self.handle.before ) |
| 830 | main.cleanup() |
| 831 | main.exit() |
| 832 | return response |
| 833 | |
| 834 | def iperf( self, host1, host2 ): |
| 835 | main.log.info( |
| 836 | self.name + |
| 837 | ": Simple iperf TCP test between two hosts" ) |
| 838 | try: |
| 839 | cmd1 = 'iperf ' + host1 + " " + host2 |
| 840 | self.handle.sendline( cmd1 ) |
| 841 | self.handle.expect( "mininet>" ) |
| 842 | response = self.handle.before |
| 843 | if re.search( 'Results:', response ): |
| 844 | main.log.info( self.name + ": iperf test successful" ) |
| 845 | return main.TRUE |
| 846 | else: |
| 847 | main.log.error( self.name + ": iperf test failed" ) |
| 848 | return main.FALSE |
| 849 | except pexpect.EOF: |
| 850 | main.log.error( self.name + ": EOF exception found" ) |
| 851 | main.log.error( self.name + ": " + self.handle.before ) |
| 852 | main.cleanup() |
| 853 | main.exit() |
| 854 | |
| 855 | def iperfudp( self ): |
| 856 | main.log.info( |
| 857 | self.name + |
| 858 | ": Simple iperf TCP test between two " + |
| 859 | "(optionally specified) hosts" ) |
| 860 | try: |
| 861 | response = self.execute( |
| 862 | cmd='iperfudp', |
| 863 | prompt='mininet>', |
| 864 | timeout=10 ) |
| 865 | except pexpect.EOF: |
| 866 | main.log.error( self.name + ": EOF exception found" ) |
| 867 | main.log.error( self.name + ": " + self.handle.before ) |
| 868 | main.cleanup() |
| 869 | main.exit() |
| 870 | return response |
| 871 | |
| 872 | def nodes( self ): |
| 873 | main.log.info( self.name + ": List all nodes." ) |
| 874 | try: |
| 875 | response = self.execute( |
| 876 | cmd='nodes', |
| 877 | prompt='mininet>', |
| 878 | timeout=10 ) |
| 879 | except pexpect.EOF: |
| 880 | main.log.error( self.name + ": EOF exception found" ) |
| 881 | main.log.error( self.name + ": " + self.handle.before ) |
| 882 | main.cleanup() |
| 883 | main.exit() |
| 884 | return response |
| 885 | |
| 886 | def pingpair( self ): |
| 887 | main.log.info( self.name + ": Ping between first two hosts" ) |
| 888 | try: |
| 889 | response = self.execute( |
| 890 | cmd='pingpair', |
| 891 | prompt='mininet>', |
| 892 | timeout=20 ) |
| 893 | except pexpect.EOF: |
| 894 | main.log.error( self.name + ": EOF exception found" ) |
| 895 | main.log.error( self.name + ": " + self.handle.before ) |
| 896 | main.cleanup() |
| 897 | main.exit() |
| 898 | |
| 899 | if re.search( ',\s0\%\spacket\sloss', response ): |
| 900 | main.log.info( self.name + ": Ping between two hosts SUCCESSFUL" ) |
| 901 | main.lastResult = main.TRUE |
| 902 | return main.TRUE |
| 903 | else: |
| 904 | main.log.error( self.name + ": PACKET LOST, HOSTS NOT REACHABLE" ) |
| 905 | main.lastResult = main.FALSE |
| 906 | return main.FALSE |
| 907 | |
| 908 | def link( self, **linkargs ): |
| 909 | """ |
| 910 | Bring link( s ) between two nodes up or down""" |
| 911 | args = utilities.parse_args( [ "END1", "END2", "OPTION" ], **linkargs ) |
| 912 | end1 = args[ "END1" ] if args[ "END1" ] is not None else "" |
| 913 | end2 = args[ "END2" ] if args[ "END2" ] is not None else "" |
| 914 | option = args[ "OPTION" ] if args[ "OPTION" ] is not None else "" |
| 915 | main.log.info( |
| 916 | "Bring link between '" + |
| 917 | end1 + |
| 918 | "' and '" + |
| 919 | end2 + |
| 920 | "' '" + |
| 921 | option + |
| 922 | "'" ) |
| 923 | command = "link " + \ |
| 924 | str( end1 ) + " " + str( end2 ) + " " + str( option ) |
| 925 | try: |
| 926 | self.handle.sendline( command ) |
| 927 | self.handle.expect( "mininet>" ) |
| 928 | except pexpect.EOF: |
| 929 | main.log.error( self.name + ": EOF exception found" ) |
| 930 | main.log.error( self.name + ": " + self.handle.before ) |
| 931 | main.cleanup() |
| 932 | main.exit() |
| 933 | return main.TRUE |
| 934 | |
| 935 | def yank( self, **yankargs ): |
| 936 | """ |
| 937 | yank a mininet switch interface to a host""" |
| 938 | main.log.info( 'Yank the switch interface attached to a host' ) |
| 939 | args = utilities.parse_args( [ "SW", "INTF" ], **yankargs ) |
| 940 | sw = args[ "SW" ] if args[ "SW" ] is not None else "" |
| 941 | intf = args[ "INTF" ] if args[ "INTF" ] is not None else "" |
| 942 | command = "py " + str( sw ) + '.detach("' + str(intf) + '")' |
| 943 | try: |
| 944 | response = self.execute( |
| 945 | cmd=command, |
| 946 | prompt="mininet>", |
| 947 | timeout=10 ) |
| 948 | except pexpect.EOF: |
| 949 | main.log.error( self.name + ": EOF exception found" ) |
| 950 | main.log.error( self.name + ": " + self.handle.before ) |
| 951 | main.cleanup() |
| 952 | main.exit() |
| 953 | return main.TRUE |
| 954 | |
| 955 | def plug( self, **plugargs ): |
| 956 | """ |
| 957 | plug the yanked mininet switch interface to a switch""" |
| 958 | main.log.info( 'Plug the switch interface attached to a switch' ) |
| 959 | args = utilities.parse_args( [ "SW", "INTF" ], **plugargs ) |
| 960 | sw = args[ "SW" ] if args[ "SW" ] is not None else "" |
| 961 | intf = args[ "INTF" ] if args[ "INTF" ] is not None else "" |
| 962 | command = "py " + str( sw ) + '.attach("' + str(intf) + '")' |
| 963 | try: |
| 964 | response = self.execute( |
| 965 | cmd=command, |
| 966 | prompt="mininet>", |
| 967 | timeout=10 ) |
| 968 | except pexpect.EOF: |
| 969 | main.log.error( self.name + ": EOF exception found" ) |
| 970 | main.log.error( self.name + ": " + self.handle.before ) |
| 971 | main.cleanup() |
| 972 | main.exit() |
| 973 | return main.TRUE |
| 974 | |
| 975 | def dpctl( self, **dpctlargs ): |
| 976 | """ |
| 977 | Run dpctl command on all switches.""" |
| 978 | main.log.info( 'Run dpctl command on all switches' ) |
| 979 | args = utilities.parse_args( [ "CMD", "ARGS" ], **dpctlargs ) |
| 980 | cmd = args[ "CMD" ] if args[ "CMD" ] is not None else "" |
| 981 | cmdargs = args[ "ARGS" ] if args[ "ARGS" ] is not None else "" |
| 982 | command = "dpctl " + cmd + " " + str( cmdargs ) |
| 983 | try: |
| 984 | response = self.execute( |
| 985 | cmd=command, |
| 986 | prompt="mininet>", |
| 987 | timeout=10 ) |
| 988 | except pexpect.EOF: |
| 989 | main.log.error( self.name + ": EOF exception found" ) |
| 990 | main.log.error( self.name + ": " + self.handle.before ) |
| 991 | main.cleanup() |
| 992 | main.exit() |
| 993 | return main.TRUE |
| 994 | |
| 995 | def getVersion( self ): |
| 996 | #FIXME: What uses this? This should be refactored to get |
| 997 | # version from MN and not some other file |
| 998 | fileInput = path + '/lib/Mininet/INSTALL' |
| 999 | version = super( Mininet, self ).getVersion() |
| 1000 | pattern = 'Mininet\s\w\.\w\.\w\w*' |
| 1001 | for line in open( fileInput, 'r' ).readlines(): |
| 1002 | result = re.match( pattern, line ) |
| 1003 | if result: |
| 1004 | version = result.group( 0 ) |
| 1005 | return version |
| 1006 | |
| 1007 | def getSwController( self, sw ): |
| 1008 | """ |
| 1009 | Parameters: |
| 1010 | sw: The name of an OVS switch. Example "s1" |
| 1011 | Return: |
| 1012 | The output of the command from the mininet cli |
| 1013 | or main.FALSE on timeout""" |
| 1014 | command = "sh ovs-vsctl get-controller " + str( sw ) |
| 1015 | try: |
| 1016 | response = self.execute( |
| 1017 | cmd=command, |
| 1018 | prompt="mininet>", |
| 1019 | timeout=10 ) |
| 1020 | if response: |
| 1021 | return response |
| 1022 | else: |
| 1023 | return main.FALSE |
| 1024 | except pexpect.EOF: |
| 1025 | main.log.error( self.name + ": EOF exception found" ) |
| 1026 | main.log.error( self.name + ": " + self.handle.before ) |
| 1027 | main.cleanup() |
| 1028 | main.exit() |
| 1029 | |
| 1030 | def assignSwController( self, **kwargs ): |
| 1031 | """ |
| 1032 | count is only needed if there is more than 1 controller""" |
| 1033 | args = utilities.parse_args( [ "COUNT" ], **kwargs ) |
| 1034 | count = args[ "COUNT" ] if args != {} else 1 |
| 1035 | |
| 1036 | argstring = "SW" |
| 1037 | for j in range( count ): |
| 1038 | argstring = argstring + ",IP" + \ |
| 1039 | str( j + 1 ) + ",PORT" + str( j + 1 ) |
| 1040 | args = utilities.parse_args( argstring.split( "," ), **kwargs ) |
| 1041 | |
| 1042 | sw = args[ "SW" ] if args[ "SW" ] is not None else "" |
| 1043 | ptcpA = int( args[ "PORT1" ] ) + \ |
| 1044 | int( sw ) if args[ "PORT1" ] is not None else "" |
| 1045 | ptcpB = "ptcp:" + str( ptcpA ) if ptcpA != "" else "" |
| 1046 | |
| 1047 | command = "sh ovs-vsctl set-controller s" + \ |
| 1048 | str( sw ) + " " + ptcpB + " " |
| 1049 | for j in range( count ): |
| 1050 | i = j + 1 |
| 1051 | args = utilities.parse_args( |
| 1052 | [ "IP" + str( i ), "PORT" + str( i ) ], **kwargs ) |
| 1053 | ip = args[ |
| 1054 | "IP" + |
| 1055 | str( i ) ] if args[ |
| 1056 | "IP" + |
| 1057 | str( i ) ] is not None else "" |
| 1058 | port = args[ |
| 1059 | "PORT" + |
| 1060 | str( i ) ] if args[ |
| 1061 | "PORT" + |
| 1062 | str( i ) ] is not None else "" |
| 1063 | tcp = "tcp:" + str( ip ) + ":" + str( port ) + \ |
| 1064 | " " if ip != "" else "" |
| 1065 | command = command + tcp |
| 1066 | try: |
| 1067 | self.execute( cmd=command, prompt="mininet>", timeout=5 ) |
| 1068 | except pexpect.EOF: |
| 1069 | main.log.error( self.name + ": EOF exception found" ) |
| 1070 | main.log.error( self.name + ": " + self.handle.before ) |
| 1071 | main.cleanup() |
| 1072 | main.exit() |
| 1073 | except Exception: |
| 1074 | main.log.exception( self.name + ": Uncaught exception!" ) |
| 1075 | main.cleanup() |
| 1076 | main.exit() |
| 1077 | |
| 1078 | def deleteSwController( self, sw ): |
| 1079 | """ |
| 1080 | Removes the controller target from sw""" |
| 1081 | command = "sh ovs-vsctl del-controller " + str( sw ) |
| 1082 | try: |
| 1083 | response = self.execute( |
| 1084 | cmd=command, |
| 1085 | prompt="mininet>", |
| 1086 | timeout=10 ) |
| 1087 | except pexpect.EOF: |
| 1088 | main.log.error( self.name + ": EOF exception found" ) |
| 1089 | main.log.error( self.name + ": " + self.handle.before ) |
| 1090 | main.cleanup() |
| 1091 | main.exit() |
| 1092 | else: |
| 1093 | main.log.info( response ) |
| 1094 | |
| 1095 | def addSwitch( self, sw, **kwargs ): |
| 1096 | """ |
| 1097 | adds a switch to the mininet topology |
| 1098 | NOTE: This uses a custom mn function. MN repo should be on |
| 1099 | dynamic_topo branch |
| 1100 | NOTE: cannot currently specify what type of switch |
| 1101 | required params: |
| 1102 | sw = name of the new switch as a string |
| 1103 | optional keywords: |
| 1104 | dpid = "dpid" |
| 1105 | returns: main.FALSE on an error, else main.TRUE |
| 1106 | """ |
| 1107 | dpid = kwargs.get( 'dpid', '' ) |
| 1108 | command = "addswitch " + str( sw ) + " " + str( dpid ) |
| 1109 | try: |
| 1110 | response = self.execute( |
| 1111 | cmd=command, |
| 1112 | prompt="mininet>", |
| 1113 | timeout=10 ) |
| 1114 | if re.search( "already exists!", response ): |
| 1115 | main.log.warn( response ) |
| 1116 | return main.FALSE |
| 1117 | elif re.search( "Error", response ): |
| 1118 | main.log.warn( response ) |
| 1119 | return main.FALSE |
| 1120 | elif re.search( "usage:", response ): |
| 1121 | main.log.warn( response ) |
| 1122 | return main.FALSE |
| 1123 | else: |
| 1124 | return main.TRUE |
| 1125 | except pexpect.EOF: |
| 1126 | main.log.error( self.name + ": EOF exception found" ) |
| 1127 | main.log.error( self.name + ": " + self.handle.before ) |
| 1128 | main.cleanup() |
| 1129 | main.exit() |
| 1130 | |
| 1131 | def delSwitch( self, sw ): |
| 1132 | """ |
| 1133 | delete a switch from the mininet topology |
| 1134 | NOTE: This uses a custom mn function. MN repo should be on |
| 1135 | dynamic_topo branch |
| 1136 | required params: |
| 1137 | sw = name of the switch as a string |
| 1138 | returns: main.FALSE on an error, else main.TRUE""" |
| 1139 | command = "delswitch " + str( sw ) |
| 1140 | try: |
| 1141 | response = self.execute( |
| 1142 | cmd=command, |
| 1143 | prompt="mininet>", |
| 1144 | timeout=10 ) |
| 1145 | if re.search( "no switch named", response ): |
| 1146 | main.log.warn( response ) |
| 1147 | return main.FALSE |
| 1148 | elif re.search( "Error", response ): |
| 1149 | main.log.warn( response ) |
| 1150 | return main.FALSE |
| 1151 | elif re.search( "usage:", response ): |
| 1152 | main.log.warn( response ) |
| 1153 | return main.FALSE |
| 1154 | else: |
| 1155 | return main.TRUE |
| 1156 | except pexpect.EOF: |
| 1157 | main.log.error( self.name + ": EOF exception found" ) |
| 1158 | main.log.error( self.name + ": " + self.handle.before ) |
| 1159 | main.cleanup() |
| 1160 | main.exit() |
| 1161 | |
| 1162 | def addLink( self, node1, node2 ): |
| 1163 | """ |
| 1164 | add a link to the mininet topology |
| 1165 | NOTE: This uses a custom mn function. MN repo should be on |
| 1166 | dynamic_topo branch |
| 1167 | NOTE: cannot currently specify what type of link |
| 1168 | required params: |
| 1169 | node1 = the string node name of the first endpoint of the link |
| 1170 | node2 = the string node name of the second endpoint of the link |
| 1171 | returns: main.FALSE on an error, else main.TRUE""" |
| 1172 | command = "addlink " + str( node1 ) + " " + str( node2 ) |
| 1173 | try: |
| 1174 | response = self.execute( |
| 1175 | cmd=command, |
| 1176 | prompt="mininet>", |
| 1177 | timeout=10 ) |
| 1178 | if re.search( "doesnt exist!", response ): |
| 1179 | main.log.warn( response ) |
| 1180 | return main.FALSE |
| 1181 | elif re.search( "Error", response ): |
| 1182 | main.log.warn( response ) |
| 1183 | return main.FALSE |
| 1184 | elif re.search( "usage:", response ): |
| 1185 | main.log.warn( response ) |
| 1186 | return main.FALSE |
| 1187 | else: |
| 1188 | return main.TRUE |
| 1189 | except pexpect.EOF: |
| 1190 | main.log.error( self.name + ": EOF exception found" ) |
| 1191 | main.log.error( self.name + ": " + self.handle.before ) |
| 1192 | main.cleanup() |
| 1193 | main.exit() |
| 1194 | |
| 1195 | def delLink( self, node1, node2 ): |
| 1196 | """ |
| 1197 | delete a link from the mininet topology |
| 1198 | NOTE: This uses a custom mn function. MN repo should be on |
| 1199 | dynamic_topo branch |
| 1200 | required params: |
| 1201 | node1 = the string node name of the first endpoint of the link |
| 1202 | node2 = the string node name of the second endpoint of the link |
| 1203 | returns: main.FALSE on an error, else main.TRUE""" |
| 1204 | command = "dellink " + str( node1 ) + " " + str( node2 ) |
| 1205 | try: |
| 1206 | response = self.execute( |
| 1207 | cmd=command, |
| 1208 | prompt="mininet>", |
| 1209 | timeout=10 ) |
| 1210 | if re.search( "no node named", response ): |
| 1211 | main.log.warn( response ) |
| 1212 | return main.FALSE |
| 1213 | elif re.search( "Error", response ): |
| 1214 | main.log.warn( response ) |
| 1215 | return main.FALSE |
| 1216 | elif re.search( "usage:", response ): |
| 1217 | main.log.warn( response ) |
| 1218 | return main.FALSE |
| 1219 | else: |
| 1220 | return main.TRUE |
| 1221 | except pexpect.EOF: |
| 1222 | main.log.error( self.name + ": EOF exception found" ) |
| 1223 | main.log.error( self.name + ": " + self.handle.before ) |
| 1224 | main.cleanup() |
| 1225 | main.exit() |
| 1226 | |
| 1227 | def addHost( self, hostname, **kwargs ): |
| 1228 | """ |
| 1229 | Add a host to the mininet topology |
| 1230 | NOTE: This uses a custom mn function. MN repo should be on |
| 1231 | dynamic_topo branch |
| 1232 | NOTE: cannot currently specify what type of host |
| 1233 | required params: |
| 1234 | hostname = the string hostname |
| 1235 | optional key-value params |
| 1236 | switch = "switch name" |
| 1237 | returns: main.FALSE on an error, else main.TRUE |
| 1238 | """ |
| 1239 | switch = kwargs.get( 'switch', '' ) |
| 1240 | command = "addhost " + str( hostname ) + " " + str( switch ) |
| 1241 | try: |
| 1242 | response = self.execute( |
| 1243 | cmd=command, |
| 1244 | prompt="mininet>", |
| 1245 | timeout=10 ) |
| 1246 | if re.search( "already exists!", response ): |
| 1247 | main.log.warn( response ) |
| 1248 | return main.FALSE |
| 1249 | elif re.search( "doesnt exists!", response ): |
| 1250 | main.log.warn( response ) |
| 1251 | return main.FALSE |
| 1252 | elif re.search( "Error", response ): |
| 1253 | main.log.warn( response ) |
| 1254 | return main.FALSE |
| 1255 | elif re.search( "usage:", response ): |
| 1256 | main.log.warn( response ) |
| 1257 | return main.FALSE |
| 1258 | else: |
| 1259 | return main.TRUE |
| 1260 | except pexpect.EOF: |
| 1261 | main.log.error( self.name + ": EOF exception found" ) |
| 1262 | main.log.error( self.name + ": " + self.handle.before ) |
| 1263 | main.cleanup() |
| 1264 | main.exit() |
| 1265 | |
| 1266 | def delHost( self, hostname ): |
| 1267 | """ |
| 1268 | delete a host from the mininet topology |
| 1269 | NOTE: This uses a custom mn function. MN repo should be on |
| 1270 | dynamic_topo branch |
| 1271 | NOTE: this uses a custom mn function |
| 1272 | required params: |
| 1273 | hostname = the string hostname |
| 1274 | returns: main.FALSE on an error, else main.TRUE""" |
| 1275 | command = "delhost " + str( hostname ) |
| 1276 | try: |
| 1277 | response = self.execute( |
| 1278 | cmd=command, |
| 1279 | prompt="mininet>", |
| 1280 | timeout=10 ) |
| 1281 | if re.search( "no host named", response ): |
| 1282 | main.log.warn( response ) |
| 1283 | return main.FALSE |
| 1284 | elif re.search( "Error", response ): |
| 1285 | main.log.warn( response ) |
| 1286 | return main.FALSE |
| 1287 | elif re.search( "usage:", response ): |
| 1288 | main.log.warn( response ) |
| 1289 | return main.FALSE |
| 1290 | else: |
| 1291 | return main.TRUE |
| 1292 | except pexpect.EOF: |
| 1293 | main.log.error( self.name + ": EOF exception found" ) |
| 1294 | main.log.error( self.name + ": " + self.handle.before ) |
| 1295 | main.cleanup() |
| 1296 | main.exit() |
| 1297 | |
| 1298 | def disconnect( self ): |
| 1299 | """ |
| 1300 | Called at the end of the test to stop the mininet and |
| 1301 | disconnect the handle. |
| 1302 | """ |
| 1303 | self.handle.sendline('') |
| 1304 | i = self.handle.expect( [ 'mininet>', pexpect.EOF, pexpect.TIMEOUT ], |
| 1305 | timeout=2) |
| 1306 | if i == 0: |
| 1307 | self.stopNet() |
| 1308 | elif i == 1: |
| 1309 | return main.TRUE |
| 1310 | response = main.TRUE |
| 1311 | # print "Disconnecting Mininet" |
| 1312 | if self.handle: |
| 1313 | self.handle.sendline( "exit" ) |
| 1314 | self.handle.expect( "exit" ) |
| 1315 | self.handle.expect( "(.*)" ) |
| 1316 | else: |
| 1317 | main.log.error( "Connection failed to the host" ) |
| 1318 | return response |
| 1319 | |
| 1320 | def stopNet( self, fileName = "", timeout=5): |
| 1321 | """ |
| 1322 | Stops mininet. |
| 1323 | Returns main.TRUE if the mininet successfully stops and |
| 1324 | main.FALSE if the pexpect handle does not exist. |
| 1325 | |
| 1326 | Will cleanup and exit the test if mininet fails to stop |
| 1327 | """ |
| 1328 | |
| 1329 | main.log.info( self.name + ": Stopping mininet..." ) |
| 1330 | response = '' |
| 1331 | if self.handle: |
| 1332 | try: |
| 1333 | self.handle.sendline("") |
| 1334 | i = self.handle.expect( [ 'mininet>', |
| 1335 | '\$', |
| 1336 | pexpect.EOF, |
| 1337 | pexpect.TIMEOUT ], |
| 1338 | timeout ) |
| 1339 | if i == 0: |
| 1340 | main.log.info( "Exiting mininet..." ) |
| 1341 | |
| 1342 | response = self.execute( |
| 1343 | cmd="exit", |
| 1344 | prompt="(.*)", |
| 1345 | timeout=120 ) |
| 1346 | main.log.info( self.name + ": Stopped") |
| 1347 | self.handle.sendline( "sudo mn -c" ) |
| 1348 | response = main.TRUE |
| 1349 | |
| 1350 | if i == 1: |
| 1351 | main.log.info( " Mininet trying to exit while not " + |
| 1352 | "in the mininet prompt" ) |
| 1353 | elif i == 2: |
| 1354 | main.log.error( "Something went wrong exiting mininet" ) |
| 1355 | elif i == 3: # timeout |
| 1356 | main.log.error( "Something went wrong exiting mininet " + |
| 1357 | "TIMEOUT" ) |
| 1358 | |
| 1359 | if fileName: |
| 1360 | self.handle.sendline("") |
| 1361 | self.handle.expect('\$') |
| 1362 | self.handle.sendline("sudo kill -9 \`ps -ef | grep \""+ fileName +"\" | grep -v grep | awk '{print $2}'\`") |
| 1363 | except pexpect.EOF: |
| 1364 | main.log.error( self.name + ": EOF exception found" ) |
| 1365 | main.log.error( self.name + ": " + self.handle.before ) |
| 1366 | main.cleanup() |
| 1367 | main.exit() |
| 1368 | else: |
| 1369 | main.log.error( self.name + ": Connection failed to the host" ) |
| 1370 | response = main.FALSE |
| 1371 | return response |
| 1372 | |
| 1373 | def arping( self, src, dest, destmac ): |
| 1374 | self.handle.sendline( '' ) |
| 1375 | self.handle.expect( [ "mininet", pexpect.EOF, pexpect.TIMEOUT ] ) |
| 1376 | |
| 1377 | self.handle.sendline( src + ' arping ' + dest ) |
| 1378 | try: |
| 1379 | self.handle.expect( [ destmac, pexpect.EOF, pexpect.TIMEOUT ] ) |
| 1380 | main.log.info( self.name + ": ARP successful" ) |
| 1381 | self.handle.expect( [ "mininet", pexpect.EOF, pexpect.TIMEOUT ] ) |
| 1382 | return main.TRUE |
| 1383 | except Exception: |
| 1384 | main.log.warn( self.name + ": ARP FAILURE" ) |
| 1385 | self.handle.expect( [ "mininet", pexpect.EOF, pexpect.TIMEOUT ] ) |
| 1386 | return main.FALSE |
| 1387 | |
| 1388 | def decToHex( self, num ): |
| 1389 | return hex( num ).split( 'x' )[ 1 ] |
| 1390 | |
| 1391 | def getSwitchFlowCount( self, switch ): |
| 1392 | """ |
| 1393 | return the Flow Count of the switch""" |
| 1394 | if self.handle: |
| 1395 | cmd = "sh ovs-ofctl dump-aggregate %s" % switch |
| 1396 | try: |
| 1397 | response = self.execute( |
| 1398 | cmd=cmd, |
| 1399 | prompt="mininet>", |
| 1400 | timeout=10 ) |
| 1401 | except pexpect.EOF: |
| 1402 | main.log.error( self.name + ": EOF exception found" ) |
| 1403 | main.log.error( self.name + " " + self.handle.before ) |
| 1404 | main.cleanup() |
| 1405 | main.exit() |
| 1406 | pattern = "flow_count=(\d+)" |
| 1407 | result = re.search( pattern, response, re.MULTILINE ) |
| 1408 | if result is None: |
| 1409 | main.log.info( |
| 1410 | "Couldn't find flows on switch %s, found: %s" % |
| 1411 | ( switch, response ) ) |
| 1412 | return main.FALSE |
| 1413 | return result.group( 1 ) |
| 1414 | else: |
| 1415 | main.log.error( "Connection failed to the Mininet host" ) |
| 1416 | |
| 1417 | def checkFlows( self, sw, dumpFormat=None ): |
| 1418 | if dumpFormat: |
| 1419 | command = "sh ovs-ofctl -F " + \ |
| 1420 | dumpFormat + " dump-flows " + str( sw ) |
| 1421 | else: |
| 1422 | command = "sh ovs-ofctl dump-flows " + str( sw ) |
| 1423 | try: |
| 1424 | response = self.execute( |
| 1425 | cmd=command, |
| 1426 | prompt="mininet>", |
| 1427 | timeout=10 ) |
| 1428 | return response |
| 1429 | except pexpect.EOF: |
| 1430 | main.log.error( self.name + ": EOF exception found" ) |
| 1431 | main.log.error( self.name + ": " + self.handle.before ) |
| 1432 | main.cleanup() |
| 1433 | main.exit() |
| 1434 | |
| 1435 | def startTcpdump( self, filename, intf="eth0", port="port 6633" ): |
| 1436 | """ |
| 1437 | Runs tpdump on an interface and saves the file |
| 1438 | intf can be specified, or the default eth0 is used""" |
| 1439 | try: |
| 1440 | self.handle.sendline( "" ) |
| 1441 | self.handle.expect( "mininet>" ) |
| 1442 | self.handle.sendline( |
| 1443 | "sh sudo tcpdump -n -i " + |
| 1444 | intf + |
| 1445 | " " + |
| 1446 | port + |
| 1447 | " -w " + |
| 1448 | filename.strip() + |
| 1449 | " &" ) |
| 1450 | self.handle.sendline( "" ) |
| 1451 | i = self.handle.expect( [ 'No\ssuch\device', |
| 1452 | 'listening\son', |
| 1453 | pexpect.TIMEOUT, |
| 1454 | "mininet>" ], |
| 1455 | timeout=10 ) |
| 1456 | main.log.warn( self.handle.before + self.handle.after ) |
| 1457 | self.handle.sendline( "" ) |
| 1458 | self.handle.expect( "mininet>" ) |
| 1459 | if i == 0: |
| 1460 | main.log.error( |
| 1461 | self.name + |
| 1462 | ": tcpdump - No such device exists. " + |
| 1463 | "tcpdump attempted on: " + |
| 1464 | intf ) |
| 1465 | return main.FALSE |
| 1466 | elif i == 1: |
| 1467 | main.log.info( self.name + ": tcpdump started on " + intf ) |
| 1468 | return main.TRUE |
| 1469 | elif i == 2: |
| 1470 | main.log.error( |
| 1471 | self.name + |
| 1472 | ": tcpdump command timed out! Check interface name," + |
| 1473 | " given interface was: " + |
| 1474 | intf ) |
| 1475 | return main.FALSE |
| 1476 | elif i == 3: |
| 1477 | main.log.info( self.name + ": " + self.handle.before ) |
| 1478 | return main.TRUE |
| 1479 | else: |
| 1480 | main.log.error( self.name + ": tcpdump - unexpected response" ) |
| 1481 | return main.FALSE |
| 1482 | except pexpect.EOF: |
| 1483 | main.log.error( self.name + ": EOF exception found" ) |
| 1484 | main.log.error( self.name + ": " + self.handle.before ) |
| 1485 | main.cleanup() |
| 1486 | main.exit() |
| 1487 | except Exception: |
| 1488 | main.log.exception( self.name + ": Uncaught exception!" ) |
| 1489 | main.cleanup() |
| 1490 | main.exit() |
| 1491 | |
| 1492 | def stopTcpdump( self ): |
| 1493 | """ |
| 1494 | pkills tcpdump""" |
| 1495 | try: |
| 1496 | self.handle.sendline( "sh sudo pkill tcpdump" ) |
| 1497 | self.handle.expect( "mininet>" ) |
| 1498 | self.handle.sendline( "" ) |
| 1499 | self.handle.expect( "mininet>" ) |
| 1500 | except pexpect.EOF: |
| 1501 | main.log.error( self.name + ": EOF exception found" ) |
| 1502 | main.log.error( self.name + ": " + self.handle.before ) |
| 1503 | main.cleanup() |
| 1504 | main.exit() |
| 1505 | except Exception: |
| 1506 | main.log.exception( self.name + ": Uncaught exception!" ) |
| 1507 | main.cleanup() |
| 1508 | main.exit() |
| 1509 | |
| 1510 | def compareSwitches( self, topo, switchesJson ): |
| 1511 | """ |
| 1512 | Compare mn and onos switches |
| 1513 | topo: sts TestONTopology object |
| 1514 | switchesJson: parsed json object from the onos devices api |
| 1515 | |
| 1516 | This uses the sts TestONTopology object""" |
| 1517 | # main.log.debug( "Switches_json string: ", switchesJson ) |
| 1518 | output = { "switches": [] } |
| 1519 | # iterate through the MN topology and pull out switches and and port |
| 1520 | # info |
| 1521 | for switch in topo.graph.switches: |
| 1522 | ports = [] |
| 1523 | for port in switch.ports.values(): |
| 1524 | ports.append( { 'of_port': port.port_no, |
| 1525 | 'mac': str( port.hw_addr ).replace( '\'', '' ), |
| 1526 | 'name': port.name } ) |
| 1527 | output[ 'switches' ].append( { |
| 1528 | "name": switch.name, |
| 1529 | "dpid": str( switch.dpid ).zfill( 16 ), |
| 1530 | "ports": ports } ) |
| 1531 | |
| 1532 | # print "mn" |
| 1533 | # print json.dumps( output, |
| 1534 | # sort_keys=True, |
| 1535 | # indent=4, |
| 1536 | # separators=( ',', ': ' ) ) |
| 1537 | # print "onos" |
| 1538 | # print json.dumps( switchesJson, |
| 1539 | # sort_keys=True, |
| 1540 | # indent=4, |
| 1541 | # separators=( ',', ': ' ) ) |
| 1542 | |
| 1543 | # created sorted list of dpid's in MN and ONOS for comparison |
| 1544 | mnDPIDs = [] |
| 1545 | for switch in output[ 'switches' ]: |
| 1546 | mnDPIDs.append( switch[ 'dpid' ].lower() ) |
| 1547 | mnDPIDs.sort() |
| 1548 | # print "List of Mininet switch DPID's" |
| 1549 | # print mnDPIDs |
| 1550 | if switchesJson == "": # if rest call fails |
| 1551 | main.log.error( |
| 1552 | self.name + |
| 1553 | ".compare_switches(): Empty JSON object given from ONOS" ) |
| 1554 | return main.FALSE |
| 1555 | onos = switchesJson |
| 1556 | onosDPIDs = [] |
| 1557 | for switch in onos: |
| 1558 | if switch[ 'available' ]: |
| 1559 | onosDPIDs.append( |
| 1560 | switch[ 'id' ].replace( |
| 1561 | ":", |
| 1562 | '' ).replace( |
| 1563 | "of", |
| 1564 | '' ).lower() ) |
| 1565 | # else: |
| 1566 | # print "Switch is unavailable:" |
| 1567 | # print switch |
| 1568 | onosDPIDs.sort() |
| 1569 | # print "List of ONOS switch DPID's" |
| 1570 | # print onosDPIDs |
| 1571 | |
| 1572 | if mnDPIDs != onosDPIDs: |
| 1573 | switchResults = main.FALSE |
| 1574 | main.log.report( "Switches in MN but not in ONOS:" ) |
| 1575 | list1 = [ switch for switch in mnDPIDs if switch not in onosDPIDs ] |
| 1576 | main.log.report( str( list1 ) ) |
| 1577 | main.log.report( "Switches in ONOS but not in MN:" ) |
| 1578 | list2 = [ switch for switch in onosDPIDs if switch not in mnDPIDs ] |
| 1579 | main.log.report( str( list2 ) ) |
| 1580 | else: # list of dpid's match in onos and mn |
| 1581 | switchResults = main.TRUE |
| 1582 | return switchResults |
| 1583 | |
| 1584 | def comparePorts( self, topo, portsJson ): |
| 1585 | """ |
| 1586 | Compare mn and onos ports |
| 1587 | topo: sts TestONTopology object |
| 1588 | portsJson: parsed json object from the onos ports api |
| 1589 | |
| 1590 | Dependencies: |
| 1591 | 1. This uses the sts TestONTopology object |
| 1592 | 2. numpy - "sudo pip install numpy" |
| 1593 | |
| 1594 | """ |
| 1595 | # FIXME: this does not look for extra ports in ONOS, only checks that |
| 1596 | # ONOS has what is in MN |
| 1597 | from numpy import uint64 |
| 1598 | portsResults = main.TRUE |
| 1599 | output = { "switches": [] } |
| 1600 | # iterate through the MN topology and pull out switches and and port |
| 1601 | # info |
| 1602 | for switch in topo.graph.switches: |
| 1603 | ports = [] |
| 1604 | for port in switch.ports.values(): |
| 1605 | # print port.hw_addr.toStr( separator='' ) |
| 1606 | tmpPort = { 'of_port': port.port_no, |
| 1607 | 'mac': str( port.hw_addr ).replace( '\'', '' ), |
| 1608 | 'name': port.name, |
| 1609 | 'enabled': port.enabled } |
| 1610 | |
| 1611 | ports.append( tmpPort ) |
| 1612 | tmpSwitch = { 'name': switch.name, |
| 1613 | 'dpid': str( switch.dpid ).zfill( 16 ), |
| 1614 | 'ports': ports } |
| 1615 | |
| 1616 | output[ 'switches' ].append( tmpSwitch ) |
| 1617 | |
| 1618 | # PORTS |
| 1619 | for mnSwitch in output[ 'switches' ]: |
| 1620 | mnPorts = [] |
| 1621 | onosPorts = [] |
| 1622 | switchResult = main.TRUE |
| 1623 | for port in mnSwitch[ 'ports' ]: |
| 1624 | if port[ 'enabled' ]: |
| 1625 | mnPorts.append( port[ 'of_port' ] ) |
| 1626 | for onosSwitch in portsJson: |
| 1627 | # print "Iterating through a new switch as seen by ONOS" |
| 1628 | # print onosSwitch |
| 1629 | if onosSwitch[ 'device' ][ 'available' ]: |
| 1630 | if onosSwitch[ 'device' ][ 'id' ].replace( |
| 1631 | ':', |
| 1632 | '' ).replace( |
| 1633 | "of", |
| 1634 | '' ) == mnSwitch[ 'dpid' ]: |
| 1635 | for port in onosSwitch[ 'ports' ]: |
| 1636 | if port[ 'isEnabled' ]: |
| 1637 | if port[ 'port' ] == 'local': |
| 1638 | # onosPorts.append( 'local' ) |
| 1639 | onosPorts.append( long( uint64( -2 ) ) ) |
| 1640 | else: |
| 1641 | onosPorts.append( int( port[ 'port' ] ) ) |
| 1642 | break |
| 1643 | mnPorts.sort( key=float ) |
| 1644 | onosPorts.sort( key=float ) |
| 1645 | # print "\nPorts for Switch %s:" % ( mnSwitch[ 'name' ] ) |
| 1646 | # print "\tmn_ports[] = ", mnPorts |
| 1647 | # print "\tonos_ports[] = ", onosPorts |
| 1648 | mnPortsLog = mnPorts |
| 1649 | onosPortsLog = onosPorts |
| 1650 | mnPorts = [ x for x in mnPorts ] |
| 1651 | onosPorts = [ x for x in onosPorts ] |
| 1652 | |
| 1653 | # TODO: handle other reserved port numbers besides LOCAL |
| 1654 | # NOTE: Reserved ports |
| 1655 | # Local port: -2 in Openflow, ONOS shows 'local', we store as |
| 1656 | # long( uint64( -2 ) ) |
| 1657 | for mnPort in mnPortsLog: |
| 1658 | if mnPort in onosPorts: |
| 1659 | # don't set results to true here as this is just one of |
| 1660 | # many checks and it might override a failure |
| 1661 | mnPorts.remove( mnPort ) |
| 1662 | onosPorts.remove( mnPort ) |
| 1663 | # NOTE: OVS reports this as down since there is no link |
| 1664 | # So ignoring these for now |
| 1665 | # TODO: Come up with a better way of handling these |
| 1666 | if 65534 in mnPorts: |
| 1667 | mnPorts.remove( 65534 ) |
| 1668 | if long( uint64( -2 ) ) in onosPorts: |
| 1669 | onosPorts.remove( long( uint64( -2 ) ) ) |
| 1670 | if len( mnPorts ): # the ports of this switch don't match |
| 1671 | switchResult = main.FALSE |
| 1672 | main.log.warn( "Ports in MN but not ONOS: " + str( mnPorts ) ) |
| 1673 | if len( onosPorts ): # the ports of this switch don't match |
| 1674 | switchResult = main.FALSE |
| 1675 | main.log.warn( |
| 1676 | "Ports in ONOS but not MN: " + |
| 1677 | str( onosPorts ) ) |
| 1678 | if switchResult == main.FALSE: |
| 1679 | main.log.report( |
| 1680 | "The list of ports for switch %s(%s) does not match:" % |
| 1681 | ( mnSwitch[ 'name' ], mnSwitch[ 'dpid' ] ) ) |
| 1682 | main.log.warn( "mn_ports[] = " + str( mnPortsLog ) ) |
| 1683 | main.log.warn( "onos_ports[] = " + str( onosPortsLog ) ) |
| 1684 | portsResults = portsResults and switchResult |
| 1685 | return portsResults |
| 1686 | |
| 1687 | def compareLinks( self, topo, linksJson ): |
| 1688 | """ |
| 1689 | Compare mn and onos links |
| 1690 | topo: sts TestONTopology object |
| 1691 | linksJson: parsed json object from the onos links api |
| 1692 | |
| 1693 | This uses the sts TestONTopology object""" |
| 1694 | # FIXME: this does not look for extra links in ONOS, only checks that |
| 1695 | # ONOS has what is in MN |
| 1696 | output = { "switches": [] } |
| 1697 | onos = linksJson |
| 1698 | # iterate through the MN topology and pull out switches and and port |
| 1699 | # info |
| 1700 | for switch in topo.graph.switches: |
| 1701 | # print "Iterating though switches as seen by Mininet" |
| 1702 | # print switch |
| 1703 | ports = [] |
| 1704 | for port in switch.ports.values(): |
| 1705 | # print port.hw_addr.toStr( separator='' ) |
| 1706 | ports.append( { 'of_port': port.port_no, |
| 1707 | 'mac': str( port.hw_addr ).replace( '\'', '' ), |
| 1708 | 'name': port.name } ) |
| 1709 | output[ 'switches' ].append( { |
| 1710 | "name": switch.name, |
| 1711 | "dpid": str( switch.dpid ).zfill( 16 ), |
| 1712 | "ports": ports } ) |
| 1713 | # LINKS |
| 1714 | |
| 1715 | mnLinks = [ |
| 1716 | link for link in topo.patch_panel.network_links if ( |
| 1717 | link.port1.enabled and link.port2.enabled ) ] |
| 1718 | if 2 * len( mnLinks ) == len( onos ): |
| 1719 | linkResults = main.TRUE |
| 1720 | else: |
| 1721 | linkResults = main.FALSE |
| 1722 | main.log.report( |
| 1723 | "Mininet has " + str( len( mnLinks ) ) + |
| 1724 | " bidirectional links and ONOS has " + |
| 1725 | str( len( onos ) ) + " unidirectional links" ) |
| 1726 | |
| 1727 | # iterate through MN links and check if an ONOS link exists in |
| 1728 | # both directions |
| 1729 | # NOTE: Will currently only show mn links as down if they are |
| 1730 | # cut through STS. We can either do everything through STS or |
| 1731 | # wait for upNetworkLinks and downNetworkLinks to be |
| 1732 | # fully implemented. |
| 1733 | for link in mnLinks: |
| 1734 | # print "Link: %s" % link |
| 1735 | # TODO: Find a more efficient search method |
| 1736 | node1 = None |
| 1737 | port1 = None |
| 1738 | node2 = None |
| 1739 | port2 = None |
| 1740 | firstDir = main.FALSE |
| 1741 | secondDir = main.FALSE |
| 1742 | for switch in output[ 'switches' ]: |
| 1743 | # print "Switch: %s" % switch[ 'name' ] |
| 1744 | if switch[ 'name' ] == link.node1.name: |
| 1745 | node1 = switch[ 'dpid' ] |
| 1746 | for port in switch[ 'ports' ]: |
| 1747 | if str( port[ 'name' ] ) == str( link.port1 ): |
| 1748 | port1 = port[ 'of_port' ] |
| 1749 | if node1 is not None and node2 is not None: |
| 1750 | break |
| 1751 | if switch[ 'name' ] == link.node2.name: |
| 1752 | node2 = switch[ 'dpid' ] |
| 1753 | for port in switch[ 'ports' ]: |
| 1754 | if str( port[ 'name' ] ) == str( link.port2 ): |
| 1755 | port2 = port[ 'of_port' ] |
| 1756 | if node1 is not None and node2 is not None: |
| 1757 | break |
| 1758 | |
| 1759 | for onosLink in onos: |
| 1760 | onosNode1 = onosLink[ 'src' ][ 'device' ].replace( |
| 1761 | ":", |
| 1762 | '' ).replace( |
| 1763 | "of", |
| 1764 | '' ) |
| 1765 | onosNode2 = onosLink[ 'dst' ][ 'device' ].replace( |
| 1766 | ":", |
| 1767 | '' ).replace( |
| 1768 | "of", |
| 1769 | '' ) |
| 1770 | onosPort1 = onosLink[ 'src' ][ 'port' ] |
| 1771 | onosPort2 = onosLink[ 'dst' ][ 'port' ] |
| 1772 | |
| 1773 | # check onos link from node1 to node2 |
| 1774 | if str( onosNode1 ) == str( node1 ) and str( |
| 1775 | onosNode2 ) == str( node2 ): |
| 1776 | if int( onosPort1 ) == int( port1 ) and int( |
| 1777 | onosPort2 ) == int( port2 ): |
| 1778 | firstDir = main.TRUE |
| 1779 | else: |
| 1780 | main.log.warn( |
| 1781 | 'The port numbers do not match for ' + |
| 1782 | str( link ) + |
| 1783 | ' between ONOS and MN. When checking ONOS for ' + |
| 1784 | 'link %s/%s -> %s/%s' % |
| 1785 | ( node1, |
| 1786 | port1, |
| 1787 | node2, |
| 1788 | port2 ) + |
| 1789 | ' ONOS has the values %s/%s -> %s/%s' % |
| 1790 | ( onosNode1, |
| 1791 | onosPort1, |
| 1792 | onosNode2, |
| 1793 | onosPort2 ) ) |
| 1794 | |
| 1795 | # check onos link from node2 to node1 |
| 1796 | elif ( str( onosNode1 ) == str( node2 ) and |
| 1797 | str( onosNode2 ) == str( node1 ) ): |
| 1798 | if ( int( onosPort1 ) == int( port2 ) |
| 1799 | and int( onosPort2 ) == int( port1 ) ): |
| 1800 | secondDir = main.TRUE |
| 1801 | else: |
| 1802 | main.log.warn( |
| 1803 | 'The port numbers do not match for ' + |
| 1804 | str( link ) + |
| 1805 | ' between ONOS and MN. When checking ONOS for ' + |
| 1806 | 'link %s/%s -> %s/%s' % |
| 1807 | ( node2, |
| 1808 | port2, |
| 1809 | node1, |
| 1810 | port1 ) + |
| 1811 | ' ONOS has the values %s/%s -> %s/%s' % |
| 1812 | ( onosNode2, |
| 1813 | onosPort2, |
| 1814 | onosNode1, |
| 1815 | onosPort1 ) ) |
| 1816 | else: # this is not the link you're looking for |
| 1817 | pass |
| 1818 | if not firstDir: |
| 1819 | main.log.report( |
| 1820 | 'ONOS does not have the link %s/%s -> %s/%s' % |
| 1821 | ( node1, port1, node2, port2 ) ) |
| 1822 | if not secondDir: |
| 1823 | main.log.report( |
| 1824 | 'ONOS does not have the link %s/%s -> %s/%s' % |
| 1825 | ( node2, port2, node1, port1 ) ) |
| 1826 | linkResults = linkResults and firstDir and secondDir |
| 1827 | return linkResults |
| 1828 | |
| 1829 | def compareHosts( self, topo, hostsJson ): |
| 1830 | """ |
| 1831 | Compare mn and onos Hosts. |
| 1832 | Since Mininet hosts are quiet, ONOS will only know of them when they |
| 1833 | speak. For this reason, we will only check that the hosts in ONOS |
| 1834 | stores are in Mininet, and not vice versa. |
| 1835 | topo: sts TestONTopology object |
| 1836 | hostsJson: parsed json object from the onos hosts api |
| 1837 | |
| 1838 | This uses the sts TestONTopology object""" |
| 1839 | import json |
| 1840 | hostResults = main.TRUE |
| 1841 | hosts = [] |
| 1842 | # iterate through the MN topology and pull out hosts |
| 1843 | for mnHost in topo.graph.hosts: |
| 1844 | interfaces = [] |
| 1845 | for intf in mnHost.interfaces: |
| 1846 | interfaces.append( { |
| 1847 | "name": intf.name, # str |
| 1848 | "ips": [ str( ip ) for ip in intf.ips ], # list of IPAddrs |
| 1849 | # hw_addr is of type EthAddr, Not JSON serializable |
| 1850 | "hw_addr": str( intf.hw_addr ) } ) |
| 1851 | hosts.append( { |
| 1852 | "name": mnHost.name, # str |
| 1853 | "interfaces": interfaces } ) # list |
| 1854 | for onosHost in hostsJson: |
| 1855 | onosMAC = onosHost[ 'mac' ].lower() |
| 1856 | match = False |
| 1857 | for mnHost in hosts: |
| 1858 | for mnIntf in mnHost[ 'interfaces' ]: |
| 1859 | if onosMAC == mnIntf[ 'hw_addr' ].lower() : |
| 1860 | match = True |
| 1861 | for ip in mnIntf[ 'ips' ]: |
| 1862 | if ip in onosHost[ 'ips' ]: |
| 1863 | pass # all is well |
| 1864 | else: |
| 1865 | # misssing ip |
| 1866 | main.log.error( "ONOS host " + onosHost[ 'id' ] |
| 1867 | + " has a different IP than " + |
| 1868 | "the Mininet host." ) |
| 1869 | output = json.dumps( |
| 1870 | onosHost, |
| 1871 | sort_keys=True, |
| 1872 | indent=4, |
| 1873 | separators=( ',', ': ' ) ) |
| 1874 | main.log.info( output ) |
| 1875 | hostResults = main.FALSE |
| 1876 | if not match: |
| 1877 | hostResults = main.FALSE |
| 1878 | main.log.error( "ONOS host " + onosHost[ 'id' ] + " has no " + |
| 1879 | "corresponding Mininet host." ) |
| 1880 | output = json.dumps( onosHost, |
| 1881 | sort_keys=True, |
| 1882 | indent=4, |
| 1883 | separators=( ',', ': ' ) ) |
| 1884 | main.log.info( output ) |
| 1885 | return hostResults |
| 1886 | |
| 1887 | def getHosts( self ): |
| 1888 | """ |
| 1889 | Returns a list of all hosts |
| 1890 | Don't ask questions just use it""" |
| 1891 | self.handle.sendline( "" ) |
| 1892 | self.handle.expect( "mininet>" ) |
| 1893 | |
| 1894 | self.handle.sendline( "py [ host.name for host in net.hosts ]" ) |
| 1895 | self.handle.expect( "mininet>" ) |
| 1896 | |
| 1897 | handlePy = self.handle.before |
| 1898 | handlePy = handlePy.split( "]\r\n", 1 )[ 1 ] |
| 1899 | handlePy = handlePy.rstrip() |
| 1900 | |
| 1901 | self.handle.sendline( "" ) |
| 1902 | self.handle.expect( "mininet>" ) |
| 1903 | |
| 1904 | hostStr = handlePy.replace( "]", "" ) |
| 1905 | hostStr = hostStr.replace( "'", "" ) |
| 1906 | hostStr = hostStr.replace( "[", "" ) |
| 1907 | hostList = hostStr.split( "," ) |
| 1908 | |
| 1909 | return hostList |
| 1910 | |
| 1911 | def update( self ): |
| 1912 | """ |
| 1913 | updates the port address and status information for |
| 1914 | each port in mn""" |
| 1915 | # TODO: Add error checking. currently the mininet command has no output |
| 1916 | main.log.info( "Updating MN port information" ) |
| 1917 | try: |
| 1918 | self.handle.sendline( "" ) |
| 1919 | self.handle.expect( "mininet>" ) |
| 1920 | |
| 1921 | self.handle.sendline( "update" ) |
| 1922 | self.handle.expect( "update" ) |
| 1923 | self.handle.expect( "mininet>" ) |
| 1924 | |
| 1925 | self.handle.sendline( "" ) |
| 1926 | self.handle.expect( "mininet>" ) |
| 1927 | |
| 1928 | return main.TRUE |
| 1929 | except pexpect.EOF: |
| 1930 | main.log.error( self.name + ": EOF exception found" ) |
| 1931 | main.log.error( self.name + ": " + self.handle.before ) |
| 1932 | main.cleanup() |
| 1933 | main.exit() |
| 1934 | |
| 1935 | if __name__ != "__main__": |
| 1936 | import sys |
| 1937 | sys.modules[ __name__ ] = MininetCliDriver() |