zhanghaoyu | 451c139 | 2015-08-07 19:21:16 +0800 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | |
| 3 | """ |
| 4 | drivers for ovsdb commands. |
| 5 | |
| 6 | zhanghaoyu7@huawei.com |
| 7 | AUG 10 2015 |
| 8 | """ |
| 9 | import pexpect |
| 10 | import re |
| 11 | import json |
| 12 | import types |
| 13 | import time |
| 14 | import os |
| 15 | from drivers.common.clidriver import CLI |
| 16 | |
| 17 | |
| 18 | class OvsdbDriver( CLI ): |
| 19 | |
| 20 | def __init__( self ): |
| 21 | """ |
| 22 | Initialize client |
| 23 | """ |
| 24 | self.name = None |
| 25 | self.home = None |
| 26 | self.handle = None |
| 27 | super( CLI, self ).__init__() |
| 28 | |
| 29 | def connect( self, **connectargs ): |
| 30 | try: |
| 31 | for key in connectargs: |
| 32 | vars( self)[ key ] = connectargs[ key ] |
| 33 | |
| 34 | self.name = self.options[ 'name' ] |
| 35 | if os.getenv( str( self.ip_address ) ) != None: |
| 36 | self.ip_address = os.getenv(str ( self.ip_address ) ) |
| 37 | else: |
| 38 | main.log.info( self.name + ": Trying to connect to " + |
| 39 | self.ip_address ) |
| 40 | self.handle = super( OvsdbDriver, self ).connect( |
| 41 | user_name=self.user_name, |
| 42 | ip_address=self.ip_address, |
| 43 | port=self.port, |
| 44 | pwd=self.pwd) |
| 45 | |
| 46 | if self.handle: |
| 47 | return self.handle |
| 48 | main.log.onfo( "Connection successful to the ovsdb node " + |
| 49 | self.name ) |
| 50 | else: |
| 51 | main.log.error( "Connection failed to the ovsdb node " + |
| 52 | self.name ) |
| 53 | except pexpect.EOF: |
| 54 | main.log.error( self.name + ": EOF exception found" ) |
| 55 | main.log.error( self.name + ": " + self.handle.before ) |
| 56 | main.cleanup() |
| 57 | main.exit() |
| 58 | except Exception: |
| 59 | main.log.exception( self.name + ": Uncaught exception!" ) |
| 60 | main.cleanup() |
| 61 | main.exit() |
| 62 | |
| 63 | def disconnect( self ): |
| 64 | try: |
| 65 | self.handle.sendline( "exit" ) |
| 66 | self.handle.expect( "closed" ) |
| 67 | response = main.TRUE |
| 68 | except pexpect.ExceptionPexpect: |
| 69 | response = main.FALSE |
| 70 | main.log.exception( self.name + ": Uncaught exception!" ) |
| 71 | return response |
| 72 | |
| 73 | def setManager( self, ip, port, delaytime="5" ): |
| 74 | command= "sudo ovs-vsctl set-manager tcp:" + str( ip ) + ":" + str( port ) |
| 75 | try: |
| 76 | handle = self.execute( |
| 77 | cmd=command, |
| 78 | timeout=10 ) |
| 79 | if re.search( "Error", handle ): |
| 80 | main.log.error( "Error in set ovsdb manager" ) |
| 81 | main.log.error( handle ) |
| 82 | return main.FALSE |
| 83 | else: |
| 84 | main.log.info( "Ovsdb manager " + str( ip ) + " set" ) |
| 85 | #delay time for ovsdb connection create |
| 86 | main.log.info( "Wait " + str( delaytime ) + " seconds for ovsdb connection create" ) |
| 87 | time.sleep( int( delaytime ) ) |
| 88 | return main.TRUE |
| 89 | except pexpect.EOF: |
| 90 | main.log.error( self.name + ": EOF exception found" ) |
| 91 | main.log.error( self.name + ": " + self.handle.before ) |
| 92 | main.cleanup() |
| 93 | main.exit() |
| 94 | |
| 95 | def delManager( self, delaytime="5" ): |
| 96 | command= "sudo ovs-vsctl del-manager" |
| 97 | try: |
| 98 | handle = self.execute( |
| 99 | cmd=command, |
| 100 | timeout=10 ) |
| 101 | if re.search( "Error", handle ): |
| 102 | main.log.error( "Error in delete ovsdb manager" ) |
| 103 | main.log.error( handle ) |
| 104 | return main.FALSE |
| 105 | else: |
| 106 | main.log.info( "Ovsdb manager delete" ) |
| 107 | #delay time for ovsdb connection delete |
| 108 | main.log.info( "Wait " + str( delaytime ) + " seconds for ovsdb connection delete" ) |
| 109 | time.sleep( int( delaytime ) ) |
| 110 | return main.TRUE |
| 111 | except pexpect.EOF: |
| 112 | main.log.error( self.name + ": EOF exception found" ) |
| 113 | main.log.error( self.name + ": " + self.handle.before ) |
| 114 | main.cleanup() |
| 115 | main.exit() |
| 116 | |
| 117 | def getManager( self ): |
| 118 | command= "sudo ovs-vsctl get-manager" |
| 119 | try: |
| 120 | response = self.execute( |
| 121 | cmd=command, |
| 122 | timeout=10 ) |
| 123 | return response |
| 124 | except pexpect.EOF: |
| 125 | main.log.error( self.name + ": EOF exception found" ) |
| 126 | main.log.error( self.name + ": " + self.handle.before ) |
| 127 | main.cleanup() |
| 128 | main.exit() |
| 129 | |
| 130 | def listBr( self ): |
| 131 | """ |
| 132 | Parameters: |
| 133 | none |
| 134 | Return: |
| 135 | The output of the command from the linux |
| 136 | or main.FALSE on timeout |
| 137 | """ |
| 138 | command= "sudo ovs-vsctl list-br" |
| 139 | try: |
| 140 | response = self.execute( |
| 141 | cmd=command, |
| 142 | timeout=10 ) |
| 143 | if response: |
| 144 | return response |
| 145 | else: |
| 146 | return main.FALSE |
| 147 | except pexpect.EOF: |
| 148 | main.log.error( self.name + ": EOF exception found" ) |
| 149 | main.log.error( self.name + ": " + self.handle.before ) |
| 150 | main.cleanup() |
| 151 | main.exit() |
| 152 | |
| 153 | def listPorts( self, sw ): |
| 154 | """ |
| 155 | Parameters: |
| 156 | sw: The name of an OVS switch. Example "s1" |
| 157 | Return: |
| 158 | The output of the command from the linux |
| 159 | or main.FALSE on timeout |
| 160 | """ |
| 161 | command= "sudo ovs-vsctl list-ports " + str( sw ) |
| 162 | try: |
| 163 | response = self.execute( |
| 164 | cmd=command, |
| 165 | timeout=10 ) |
| 166 | if response: |
| 167 | return response |
| 168 | else: |
| 169 | return main.FALSE |
| 170 | except pexpect.EOF: |
| 171 | main.log.error( self.name + ": EOF exception found" ) |
| 172 | main.log.error( self.name + ": " + self.handle.before ) |
| 173 | main.cleanup() |
| 174 | main.exit() |
| 175 | |
| 176 | def getController( self, sw ): |
| 177 | """ |
| 178 | Parameters: |
| 179 | sw: The name of an OVS switch. Example "s1" |
| 180 | Return: |
| 181 | The output of the command from the mininet cli |
| 182 | or main.FALSE on timeout""" |
| 183 | command = "sudo ovs-vsctl get-controller " + str( sw ) |
| 184 | try: |
| 185 | response = self.execute( |
| 186 | cmd=command, |
| 187 | timeout=10) |
| 188 | if response: |
| 189 | return response |
| 190 | else: |
| 191 | return main.FALSE |
| 192 | except pexpect.EOF: |
| 193 | main.log.error( self.name + ": EOF exception found" ) |
| 194 | main.log.error( self.name + ": " + self.handle.before ) |
| 195 | main.cleanup() |
| 196 | main.exit() |
zhanghaoyu7 | 474d8c6 | 2015-08-26 14:53:28 +0800 | [diff] [blame] | 197 | |
zhanghaoyu | 451c139 | 2015-08-07 19:21:16 +0800 | [diff] [blame] | 198 | def show( self ): |
| 199 | """ |
| 200 | Parameters: |
| 201 | none |
| 202 | Return: |
| 203 | The output of the command from the linux |
| 204 | or main.FALSE on timeout""" |
| 205 | command = "sudo ovs-vsctl show " |
| 206 | try: |
| 207 | response = self.execute( |
| 208 | cmd=command, |
| 209 | timeout=10) |
| 210 | if response: |
| 211 | return response |
| 212 | else: |
| 213 | return main.FALSE |
| 214 | except pexpect.EOF: |
| 215 | main.log.error( self.name + ": EOF exception found" ) |
| 216 | main.log.error( self.name + ": " + self.handle.before ) |
| 217 | main.cleanup() |
| 218 | main.exit() |
zhanghaoyu7 | 474d8c6 | 2015-08-26 14:53:28 +0800 | [diff] [blame] | 219 | |
| 220 | def dumpFlows( self, sw, protocols=None ): |
| 221 | """ |
| 222 | Parameters: |
| 223 | sw: The name of an OVS switch. Example "s1" |
| 224 | Return: |
| 225 | The output of the command from the linux |
| 226 | or main.FALSE on timeout""" |
| 227 | if protocols: |
| 228 | command = "sudo ovs-ofctl -O " + \ |
| 229 | protocols + " dump-flows " + str( sw ) |
| 230 | else: |
| 231 | command = "sudo ovs-ofctl dump-flows " + str( sw ) |
| 232 | try: |
| 233 | response = self.execute( |
| 234 | cmd=command, |
| 235 | timeout=10 ) |
| 236 | if response: |
| 237 | return response |
| 238 | else: |
| 239 | return main.FALSE |
| 240 | except pexpect.EOF: |
| 241 | main.log.error(self.name + ": EOF exception found") |
| 242 | main.log.error(self.name + ": " + self.handle.before) |
| 243 | main.cleanup() |
| 244 | main.exit() |
| 245 | |
| 246 | def createHost( self, hostname ): |
| 247 | command = "sudo ip netns add " + str( hostname ) |
| 248 | try: |
| 249 | handle = self.execute( |
| 250 | cmd=command, |
| 251 | timeout=10) |
| 252 | if re.search( "Error", handle ): |
| 253 | main.log.error( "Error in create host" + str( hostname ) ) |
| 254 | main.log.error( handle ) |
| 255 | return main.FALSE |
| 256 | else: |
| 257 | main.log.info( "Create " + str( hostname ) + " sucess" ) |
| 258 | return main.TRUE |
| 259 | except pexpect.EOF: |
| 260 | main.log.error(self.name + ": EOF exception found") |
| 261 | main.log.error(self.name + ": " + self.handle.before) |
| 262 | main.cleanup() |
| 263 | main.exit() |
| 264 | |
| 265 | def createHostport(self, hostname="host1", hostport="host1-eth0", ovsport="port1", hostportmac="000000000001" ): |
| 266 | command = "sudo ip link add " + str(hostport) +" type veth peer name " + str(ovsport) |
| 267 | command += ";" +" sudo ifconfig " + str(hostport) + " hw ether " + str(hostportmac) |
| 268 | command += ";" +" sudo ip link set " + str(hostport) + " netns " + str(hostname) |
| 269 | try: |
| 270 | handle = self.execute( |
| 271 | cmd=command, |
| 272 | timeout=10) |
| 273 | if re.search( "Error", handle ): |
| 274 | main.log.error( "Error in create host port " + str( hostport ) + " on " + str( hostname ) ) |
| 275 | main.log.error( handle ) |
| 276 | return main.FALSE |
| 277 | else: |
| 278 | main.log.info( "Create host port " + str( hostport ) + " on " + str( hostname ) + " sucess" ) |
| 279 | return main.TRUE |
| 280 | except pexpect.EOF: |
| 281 | main.log.error(self.name + ": EOF exception found") |
| 282 | main.log.error(self.name + ": " + self.handle.before) |
| 283 | main.cleanup() |
| 284 | main.exit() |
| 285 | |
| 286 | def addPortToOvs(self, ifaceId, attachedMac, vmuuid, port="port1", ovsname="br-int" ): |
| 287 | command = "sudo ovs-vsctl add-port " + str(ovsname) +" " + str(port) |
| 288 | if ifaceId: |
| 289 | command += " -- set Interface " + str(port) + " external-ids:iface-id=" + str(ifaceId) + " external-ids:iface-status=active" |
| 290 | if attachedMac: |
| 291 | command += " external-ids:attached-mac=" + str(attachedMac) |
| 292 | if vmuuid: |
| 293 | command += " external-ids:vm-uuid=" + str(vmuuid) |
| 294 | try: |
| 295 | handle = self.execute( |
| 296 | cmd=command, |
| 297 | timeout=10) |
| 298 | if re.search( "Error", handle ): |
| 299 | main.log.error( "Error in add port " + str(port) + " to ovs " + str( ovsname ) ) |
| 300 | main.log.error( handle ) |
| 301 | return main.FALSE |
| 302 | else: |
| 303 | main.log.info( "Add port " + str(port) + " to ovs " + str( ovsname ) + " sucess" ) |
| 304 | return main.TRUE |
| 305 | except pexpect.EOF: |
| 306 | main.log.error(self.name + ": EOF exception found") |
| 307 | main.log.error(self.name + ": " + self.handle.before) |
| 308 | main.cleanup() |
| 309 | main.exit() |
| 310 | |
| 311 | def setHostportIp(self, ip, hostname="host1", hostport1="host1-eth0" ): |
| 312 | command = "sudo ip netns exec " + str(hostname) +" ifconfig " + str(hostport1) + " " + str(ip) |
| 313 | try: |
| 314 | handle = self.execute( |
| 315 | cmd=command, |
| 316 | timeout=10) |
| 317 | if re.search( "Error", handle ): |
| 318 | main.log.error( "Error in set host ip for " + str( hostport1 ) + " on host " + str( hostname ) ) |
| 319 | main.log.error( handle ) |
| 320 | return main.FALSE |
| 321 | else: |
| 322 | main.log.info( "Set host ip for " + str( hostport1 ) + " on host " + str( hostname ) + " sucess" ) |
| 323 | return main.TRUE |
| 324 | except pexpect.EOF: |
| 325 | main.log.error(self.name + ": EOF exception found") |
| 326 | main.log.error(self.name + ": " + self.handle.before) |
| 327 | main.cleanup() |
| 328 | main.exit() |
| 329 | |
| 330 | def hostPing(self, src, target, hostname="host1" ): |
| 331 | if src: |
| 332 | command = "sudo ip netns exec " + str( hostname ) +" ping -c 1 -S " +\ |
| 333 | str( src ) + " " + str( target ) |
| 334 | else: |
| 335 | command = "sudo ip netns exec " + str( hostname ) +" ping -c 1 " + str( target ) |
| 336 | try: |
| 337 | for i in range(1,5): |
| 338 | handle = self.execute( |
| 339 | cmd=command, |
| 340 | timeout=10) |
| 341 | if re.search(',\s0\%\spacket\sloss', handle): |
| 342 | main.log.info(self.name + ": no packets lost, host is reachable") |
| 343 | return main.TRUE |
| 344 | break |
| 345 | time.sleep(5) |
| 346 | else: |
| 347 | main.log.info(self.name + ": packets lost, host is unreachable") |
| 348 | return main.FALSE |
| 349 | except pexpect.EOF: |
| 350 | main.log.error(self.name + ": EOF exception found") |
| 351 | main.log.error(self.name + ": " + self.handle.before) |
| 352 | main.cleanup() |
| 353 | main.exit() |
| 354 | |
| 355 | def delBr( self, sw ): |
| 356 | """ |
| 357 | Parameters: |
| 358 | sw: The name of an OVS switch. Example "br-int" |
| 359 | Return: |
| 360 | Delete sucess return main.TRUE or main.FALSE on delete failed |
| 361 | """ |
| 362 | command= "sudo ovs-vsctl del-br " + str( sw ) |
| 363 | try: |
| 364 | response = self.execute( |
| 365 | cmd=command, |
| 366 | timeout=10 ) |
| 367 | if response: |
| 368 | return main.TRUE |
| 369 | else: |
| 370 | return main.FALSE |
| 371 | except pexpect.EOF: |
| 372 | main.log.error( self.name + ": EOF exception found" ) |
| 373 | main.log.error( self.name + ": " + self.handle.before ) |
| 374 | main.cleanup() |
| 375 | main.exit() |
| 376 | |
| 377 | def delHost( self, hostname ): |
| 378 | """ |
| 379 | Parameters: |
| 380 | hostname: The name of an ip netns name. Example "host1" |
| 381 | Return: |
| 382 | Delete sucess return main.TRUE or main.FALSE on delete failed |
| 383 | """ |
| 384 | command= "sudo ip netns delete " + str( hostname ) |
| 385 | try: |
| 386 | response = self.execute( |
| 387 | cmd=command, |
| 388 | timeout=10 ) |
| 389 | if response: |
| 390 | return main.TRUE |
| 391 | else: |
| 392 | return main.FALSE |
| 393 | except pexpect.EOF: |
| 394 | main.log.error( self.name + ": EOF exception found" ) |
| 395 | main.log.error( self.name + ": " + self.handle.before ) |
| 396 | main.cleanup() |
| 397 | main.exit() |