Jonghwan Hyun | 3731d6a | 2017-10-19 11:59:31 -0700 | [diff] [blame] | 1 | #!/usr/bin/python |
| 2 | |
| 3 | """ |
| 4 | Libraries for Trellis hosts. |
| 5 | """ |
| 6 | |
| 7 | import sys |
| 8 | sys.path.append('..') |
| 9 | from mininet.node import Host |
| 10 | from routinglib import RoutedHost, RoutedHost6, Router |
| 11 | |
| 12 | class TaggedRoutedHost(RoutedHost): |
| 13 | """Host that can be configured with multiple IP addresses.""" |
| 14 | def __init__(self, name, ips, gateway, vlan, *args, **kwargs): |
| 15 | super(RoutedHost, self).__init__(name, *args, **kwargs) |
| 16 | self.ips = ips |
| 17 | self.gateway = gateway |
| 18 | self.vlan = vlan |
| 19 | self.vlanIntf = None |
| 20 | |
| 21 | def config(self, **kwargs): |
| 22 | Host.config(self, **kwargs) |
| 23 | intf = self.defaultIntf() |
| 24 | self.vlanIntf = "%s.%s" % (intf, self.vlan) |
| 25 | self.cmd('ip -4 addr flush dev %s' % intf) |
| 26 | self.cmd('ip link add link %s name %s type vlan id %s' % (intf, self.vlanIntf, self.vlan)) |
| 27 | self.cmd('ip link set up %s' % self.vlanIntf) |
| 28 | |
| 29 | for ip in self.ips: |
| 30 | self.cmd('ip addr add %s dev %s' % (ip, self.vlanIntf)) |
| 31 | |
| 32 | self.cmd('ip route add default via %s' % self.gateway) |
| 33 | intf.name = self.vlanIntf |
| 34 | self.nameToIntf[self.vlanIntf] = intf |
| 35 | |
| 36 | def terminate(self, **kwargs): |
| 37 | self.cmd('ip link remove link %s' % self.vlanIntf) |
| 38 | super(TaggedRoutedHost, self).terminate() |
| 39 | |
| 40 | class DualHomedRoutedHost(Host): |
| 41 | def __init__(self, name, ips, gateway, *args, **kwargs): |
| 42 | super(DualHomedRoutedHost, self).__init__(name, **kwargs) |
| 43 | self.bond0 = None |
| 44 | self.ips = ips |
| 45 | self.gateway = gateway |
| 46 | |
| 47 | def config(self, **kwargs): |
| 48 | super(DualHomedRoutedHost, self).config(**kwargs) |
Jon Hall | e9fcd34 | 2018-02-21 14:59:35 -0800 | [diff] [blame] | 49 | self.bondIntfs( self.intfs[0], self.intfs[1] ) |
Jonghwan Hyun | 3731d6a | 2017-10-19 11:59:31 -0700 | [diff] [blame] | 50 | |
| 51 | for ip in self.ips: |
| 52 | self.cmd('ip addr add %s dev %s' % (ip, self.bond0)) |
| 53 | |
| 54 | self.cmd('ip route add default via %s' % self.gateway) |
Jon Hall | e9fcd34 | 2018-02-21 14:59:35 -0800 | [diff] [blame] | 55 | |
| 56 | def bondIntfs( self, intf1, intf2, bondedName="bond0" ): |
| 57 | ''' |
| 58 | Bond two interfaces together |
| 59 | intf1 - the first interface to bond |
| 60 | intf2 - the second interface to bond |
| 61 | bondedName - the prefix of the new interface name |
| 62 | ''' |
| 63 | # Setup bonded interface |
| 64 | # TODO: support multiple bonded interfaces. Maybe just changed self.bond0 to a list of bonded intf names? |
| 65 | self.bond0 = "%s-%s" % ( self.name, bondedName ) |
| 66 | self.cmd('modprobe bonding') |
| 67 | self.cmd('ip link add %s type bond' % self.bond0) |
| 68 | self.cmd('ip link set %s down' % intf1.name) |
| 69 | self.cmd('ip link set %s down' % intf2.name) |
| 70 | self.cmd('ip link set %s master %s' % (intf1.name, self.bond0)) |
| 71 | self.cmd('ip link set %s master %s' % (intf2.name, self.bond0)) |
| 72 | self.cmd('ip addr flush dev %s' % intf1.name) |
| 73 | self.cmd('ip addr flush dev %s' % intf2.name) |
| 74 | self.cmd('ip link set %s up' % self.bond0) |
| 75 | # NOTE: Issues with bonded intfs in mn data structures. Either only show bonded intf |
| 76 | # or create a custom class to handle bonded infs?? |
| 77 | lowestIntf = min( [ intf1, intf2 ] ) |
| 78 | highestIntf = max( [ intf1, intf2 ] ) |
| 79 | lowestIntf.name = self.bond0 |
| 80 | self.nameToIntf[self.bond0] = lowestIntf |
| 81 | del self.intfs[ self.ports[ highestIntf ] ] |
| 82 | del self.ports[ highestIntf ] |
Jonghwan Hyun | 3731d6a | 2017-10-19 11:59:31 -0700 | [diff] [blame] | 83 | |
| 84 | def terminate(self, **kwargs): |
| 85 | self.cmd('ip link set %s down' % self.bond0) |
| 86 | self.cmd('ip link delete %s' % self.bond0) |
| 87 | super(DualHomedRoutedHost, self).terminate() |
| 88 | |
| 89 | class DualHomedTaggedRoutedHost(DualHomedRoutedHost): |
| 90 | def __init__(self, name, ips, gateway, vlan, *args, **kwargs): |
| 91 | super(DualHomedTaggedRoutedHost, self).__init__(name, ips, gateway, *args, **kwargs) |
| 92 | self.ips = ips |
| 93 | self.gateway = gateway |
| 94 | self.vlan = vlan |
| 95 | self.vlanIntf = None |
| 96 | |
| 97 | def config(self, **kwargs): |
| 98 | super(DualHomedTaggedRoutedHost, self).config(**kwargs) |
| 99 | default_intf = self.defaultIntf() |
| 100 | self.vlanIntf = "%s.%s" % (default_intf, self.vlan) |
| 101 | self.cmd('ip -4 addr flush dev %s' % default_intf) |
| 102 | self.cmd('ip link add link %s name %s type vlan id %s' % (default_intf, self.vlanIntf, self.vlan)) |
| 103 | self.cmd('ip link set up %s' % self.vlanIntf) |
| 104 | |
| 105 | for ip in self.ips: |
| 106 | self.cmd('ip addr add %s dev %s' % (ip, self.vlanIntf)) |
| 107 | |
| 108 | self.cmd('ip route add default via %s' % self.gateway) |
| 109 | default_intf.name = self.vlanIntf |
| 110 | self.nameToIntf[self.vlanIntf] = default_intf |
| 111 | |
| 112 | def terminate(self, **kwargs): |
| 113 | self.cmd('ip link remove link %s' % self.vlanIntf) |
| 114 | super(DualHomedTaggedRoutedHost, self).terminate() |
| 115 | |
| 116 | class DhcpClient(Host): |
| 117 | def __init__(self, name, *args, **kwargs): |
| 118 | super(DhcpClient, self).__init__(name, **kwargs) |
| 119 | self.pidFile = '/run/dhclient-%s.pid' % self.name |
| 120 | self.leaseFile = '/var/lib/dhcp/dhcpclient-%s.lease' % (self.name, ) |
| 121 | |
| 122 | def config(self, **kwargs): |
| 123 | super(DhcpClient, self).config(**kwargs) |
| 124 | self.cmd('ip addr flush dev %s' % self.defaultIntf()) |
| 125 | self.cmd('dhclient -q -4 -nw -pf %s -lf %s %s' % (self.pidFile, self.leaseFile, self.defaultIntf())) |
| 126 | |
| 127 | def terminate(self, **kwargs): |
| 128 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 129 | self.cmd('rm -rf %s' % self.pidFile) |
| 130 | super(DhcpClient, self).terminate() |
| 131 | |
| 132 | class Dhcp6Client(Host): |
| 133 | def __init__(self, name, *args, **kwargs): |
| 134 | super(Dhcp6Client, self).__init__(name, **kwargs) |
| 135 | self.pidFile = '/run/dhclient-%s.pid' % self.name |
| 136 | self.leaseFile = '/var/lib/dhcp/dhcpclient6-%s.lease' % (self.name, ) |
| 137 | |
| 138 | def config(self, **kwargs): |
| 139 | super(Dhcp6Client, self).config(**kwargs) |
| 140 | self.cmd('ip -4 addr flush dev %s' % self.defaultIntf()) |
| 141 | self.cmd('dhclient -q -6 -nw -pf %s -lf %s %s' % (self.pidFile, self.leaseFile, self.defaultIntf())) |
| 142 | |
| 143 | def terminate(self, **kwargs): |
| 144 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 145 | self.cmd('rm -rf %s' % self.pidFile) |
| 146 | super(Dhcp6Client, self).terminate() |
| 147 | |
| 148 | class DhcpServer(RoutedHost): |
| 149 | binFile = '/usr/sbin/dhcpd' |
| 150 | pidFile = '/run/dhcp-server-dhcpd.pid' |
| 151 | configFile = './dhcpd.conf' |
| 152 | leasesFile = '/var/lib/dhcp/dhcpd.leases' |
| 153 | |
| 154 | def config(self, **kwargs): |
| 155 | super(DhcpServer, self).config(**kwargs) |
| 156 | self.cmd('touch %s' % self.leasesFile) |
| 157 | self.cmd('%s -q -4 -pf %s -cf %s %s' % (self.binFile, self.pidFile, self.configFile, self.defaultIntf())) |
| 158 | |
| 159 | def terminate(self, **kwargs): |
| 160 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 161 | self.cmd('rm -rf %s' % self.pidFile) |
| 162 | super(DhcpServer, self).terminate() |
| 163 | |
| 164 | class Dhcp6Server(RoutedHost6): |
| 165 | binFile = '/usr/sbin/dhcpd' |
| 166 | pidFile = '/run/dhcp-server-dhcpd6.pid' |
| 167 | configFile = './dhcpd6.conf' |
| 168 | leasesFile = '/var/lib/dhcp/dhcpd6.leases' |
| 169 | |
| 170 | def config(self, **kwargs): |
| 171 | super(Dhcp6Server, self).config(**kwargs) |
| 172 | linkLocalAddr = mac_to_ipv6_linklocal(kwargs['mac']) |
| 173 | self.cmd('ip -6 addr add dev %s scope link %s' % (self.defaultIntf(), linkLocalAddr)) |
| 174 | self.cmd('touch %s' % self.leasesFile) |
| 175 | self.cmd('%s -q -6 -pf %s -cf %s %s' % (self.binFile, self.pidFile, self.configFile, self.defaultIntf())) |
| 176 | |
| 177 | def terminate(self, **kwargs): |
| 178 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 179 | self.cmd('rm -rf %s' % self.pidFile) |
| 180 | self.cmd('rm -rf %s' % self.leasesFile) |
| 181 | super(Dhcp6Server, self).terminate() |
| 182 | |
| 183 | class DhcpRelay(Router): |
| 184 | binFile = '/usr/sbin/dhcrelay' |
| 185 | pidFile = '/run/dhcp-relay.pid' |
| 186 | serverIp = None |
| 187 | gateway = None |
| 188 | |
| 189 | def __init__(self, name, serverIp, gateway, *args, **kwargs): |
| 190 | super(DhcpRelay, self).__init__(name, **kwargs) |
| 191 | self.serverIp = serverIp |
| 192 | self.gateway = gateway |
| 193 | |
| 194 | def config(self, **kwargs): |
| 195 | super(DhcpRelay, self).config(**kwargs) |
| 196 | ifacesStr = ' '.join(["-i " + ifaceName for ifaceName in self.interfaces.keys()]) |
| 197 | self.cmd('route add default gw %s' % self.gateway) |
| 198 | self.cmd('%s -4 -a -pf %s %s %s' % (self.binFile, self.pidFile, ifacesStr, self.serverIp)) |
| 199 | |
| 200 | def terminate(self, **kwargs): |
| 201 | self.cmd('kill -9 `cat %s`', self.pidFile) |
| 202 | self.cmd('rm -rf %s' % self.pidFile) |
| 203 | super(DhcpRelay, self).terminate() |
| 204 | |
| 205 | class TaggedDhcpClient(Host): |
| 206 | def __init__(self, name, vlan, *args, **kwargs): |
| 207 | super(TaggedDhcpClient, self).__init__(name, **kwargs) |
| 208 | self.pidFile = '/run/dhclient-%s.pid' % self.name |
| 209 | self.vlan = vlan |
| 210 | self.vlanIntf = None |
| 211 | |
| 212 | def config(self, **kwargs): |
| 213 | super(TaggedDhcpClient, self).config(**kwargs) |
| 214 | self.vlanIntf = "%s.%s" % (self.defaultIntf(), self.vlan) |
| 215 | self.cmd('ip addr flush dev %s' % self.defaultIntf()) |
| 216 | self.cmd('ip link add link %s name %s type vlan id %s' % (self.defaultIntf(), self.vlanIntf, self.vlan)) |
| 217 | self.cmd('ip link set up %s' % self.vlanIntf) |
| 218 | self.cmd('dhclient -q -4 -nw -pf %s %s' % (self.pidFile, self.vlanIntf)) |
| 219 | |
| 220 | def terminate(self, **kwargs): |
| 221 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 222 | self.cmd('rm -rf %s' % self.pidFile) |
| 223 | self.cmd('ip link remove link %s' % self.vlanIntf) |
| 224 | super(TaggedDhcpClient, self).terminate() |
| 225 | |
| 226 | class TaggedDhcpServer(TaggedRoutedHost): |
| 227 | binFile = '/usr/sbin/dhcpd' |
| 228 | pidFile = '/run/dhcp-server/dhcpd.pid' |
| 229 | configFile = './dhcpd.conf' |
| 230 | |
| 231 | def config(self, **kwargs): |
| 232 | super(TaggedDhcpServer, self).config(**kwargs) |
| 233 | self.cmd('%s -q -4 -pf %s -cf %s %s' % (self.binFile, self.pidFile, self.configFile, self.vlanIntf)) |
| 234 | |
| 235 | def terminate(self, **kwargs): |
| 236 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 237 | self.cmd('rm -rf %s' % self.pidFile) |
| 238 | super(TaggedDhcpServer, self).terminate() |
| 239 | |
| 240 | class DualHomedDhcpClient(Host): |
| 241 | def __init__(self, name, *args, **kwargs): |
| 242 | super(DualHomedDhcpClient, self).__init__(name, **kwargs) |
| 243 | self.pidFile = '/run/dhclient-%s.pid' % self.name |
| 244 | self.bond0 = None |
| 245 | |
| 246 | def config(self, **kwargs): |
| 247 | super(DualHomedDhcpClient, self).config(**kwargs) |
Jon Hall | e9fcd34 | 2018-02-21 14:59:35 -0800 | [diff] [blame] | 248 | self.bondIntfs( self.intfs[0], self.intfs[1] ) |
| 249 | self.cmd('dhclient -q -4 -nw -pf %s %s' % (self.pidFile, self.bond0)) |
| 250 | |
| 251 | def bondIntfs( self, intf1, intf2, bondedName="bond0" ): |
| 252 | ''' |
| 253 | Bond two interfaces together |
| 254 | intf1 - the first interface to bond |
| 255 | intf2 - the second interface to bond |
| 256 | bondedName - the prefix of the new interface name |
| 257 | ''' |
| 258 | # Setup bonded interface |
| 259 | # TODO: support multiple bonded interfaces. Maybe just changed self.bond0 to a list of bonded intf names? |
| 260 | self.bond0 = "%s-%s" % ( self.name, bondedName ) |
Jonghwan Hyun | 3731d6a | 2017-10-19 11:59:31 -0700 | [diff] [blame] | 261 | self.cmd('modprobe bonding') |
| 262 | self.cmd('ip link add %s type bond' % self.bond0) |
Jon Hall | e9fcd34 | 2018-02-21 14:59:35 -0800 | [diff] [blame] | 263 | self.cmd('ip link set %s down' % intf1.name) |
| 264 | self.cmd('ip link set %s down' % intf2.name) |
| 265 | self.cmd('ip link set %s master %s' % (intf1.name, self.bond0)) |
| 266 | self.cmd('ip link set %s master %s' % (intf2.name, self.bond0)) |
| 267 | self.cmd('ip addr flush dev %s' % intf1.name) |
| 268 | self.cmd('ip addr flush dev %s' % intf2.name) |
Jonghwan Hyun | 3731d6a | 2017-10-19 11:59:31 -0700 | [diff] [blame] | 269 | self.cmd('ip link set %s up' % self.bond0) |
Jon Hall | e9fcd34 | 2018-02-21 14:59:35 -0800 | [diff] [blame] | 270 | # NOTE: Issues with bonded intfs in mn data structures. Either only show bonded intf |
| 271 | # or create a custom class to handle bonded infs?? |
| 272 | lowestIntf = min( [ intf1, intf2 ] ) |
| 273 | highestIntf = max( [ intf1, intf2 ] ) |
| 274 | lowestIntf.name = self.bond0 |
| 275 | self.nameToIntf[self.bond0] = lowestIntf |
| 276 | del self.intfs[ self.ports[ highestIntf ] ] |
| 277 | del self.ports[ highestIntf ] |
Jonghwan Hyun | 3731d6a | 2017-10-19 11:59:31 -0700 | [diff] [blame] | 278 | |
| 279 | def terminate(self, **kwargs): |
| 280 | self.cmd('ip link set %s down' % self.bond0) |
| 281 | self.cmd('ip link delete %s' % self.bond0) |
| 282 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 283 | self.cmd('rm -rf %s' % self.pidFile) |
| 284 | super(DualHomedDhcpClient, self).terminate() |
| 285 | |
You Wang | 5102af1 | 2018-02-08 12:30:12 -0800 | [diff] [blame] | 286 | class TrellisHost(Host): |
| 287 | def __init__(self, name, ips=[], gateway="", dualHomed=False, vlan=None, dhcpClient=False, dhcpServer=False, ipv6=False, *args, **kwargs): |
| 288 | super(TrellisHost, self).__init__(name, *args, **kwargs) |
| 289 | self.dualHomed = dualHomed |
| 290 | self.bond0 = None |
| 291 | self.vlan = vlan |
| 292 | self.vlanIntf = None |
| 293 | self.dhcpClient = dhcpClient |
| 294 | self.dhcpServer = dhcpServer |
| 295 | if dhcpClient: |
| 296 | self.pidFile = '/run/dhclient-%s.pid' % self.name |
| 297 | self.leaseFile = '/var/lib/dhcp/dhcpclient%s-%s.lease' % ("6" if ipv6 else "", self.name) |
| 298 | else: |
| 299 | self.ips = ips |
| 300 | self.gateway = gateway |
| 301 | if dhcpServer: |
| 302 | self.binFile = '/usr/sbin/dhcpd' |
| 303 | self.pidFile = '/run/dhcp-server-dhcpd%s.pid' % ("6" if ipv6 else "") |
| 304 | self.configFile = './dhcpd%s.conf' % ("6" if ipv6 else "") |
| 305 | self.leasesFile = '/var/lib/dhcp/dhcpd%s.leases' % ("6" if ipv6 else "") |
| 306 | self.ipv6 = ipv6 |
| 307 | |
| 308 | def config(self, **kwargs): |
| 309 | super(TrellisHost, self).config(**kwargs) |
| 310 | |
| 311 | if self.dualHomed: |
Jon Hall | e9fcd34 | 2018-02-21 14:59:35 -0800 | [diff] [blame] | 312 | self.bondIntfs( self.intfs[0], self.intfs[1] ) |
You Wang | 5102af1 | 2018-02-08 12:30:12 -0800 | [diff] [blame] | 313 | |
| 314 | self.cmd('ip %s addr flush dev %s' % ("-4" if self.ipv6 else "", self.defaultIntf())) |
| 315 | |
| 316 | if self.vlan: |
| 317 | # Setup vlan interface |
| 318 | defaultIntf = self.defaultIntf() |
| 319 | self.vlanIntf = "%s.%s" % (defaultIntf, self.vlan) |
| 320 | self.cmd('ip link add link %s name %s type vlan id %s' % (defaultIntf, self.vlanIntf, self.vlan)) |
| 321 | self.cmd('ip link set up %s' % self.vlanIntf) |
| 322 | defaultIntf.name = self.vlanIntf |
| 323 | self.nameToIntf[self.vlanIntf] = defaultIntf |
| 324 | |
| 325 | if self.dhcpClient: |
You Wang | b097c0f | 2018-02-16 16:19:41 -0800 | [diff] [blame] | 326 | self.cmd('dhclient -q -%s -nw -pf %s -lf %s %s' % (6 if self.ipv6 else 4, self.pidFile, self.leaseFile, self.defaultIntf())) |
You Wang | 5102af1 | 2018-02-08 12:30:12 -0800 | [diff] [blame] | 327 | else: |
| 328 | # Setup IP addresses |
| 329 | for ip in self.ips: |
| 330 | self.cmd('ip addr add %s dev %s' % (ip, self.defaultIntf())) |
| 331 | self.cmd('ip route add default via %s' % self.gateway) |
| 332 | |
| 333 | if self.dhcpServer: |
| 334 | if self.ipv6: |
| 335 | linkLocalAddr = mac_to_ipv6_linklocal(kwargs['mac']) |
| 336 | self.cmd('ip -6 addr add dev %s scope link %s' % (self.defaultIntf(), linkLocalAddr)) |
| 337 | self.cmd('touch %s' % self.leasesFile) |
| 338 | self.cmd('%s -q -%s -pf %s -cf %s %s' % (self.binFile, 6 if self.ipv6 else 4, self.pidFile, self.configFile, self.defaultIntf())) |
| 339 | |
Jon Hall | e9fcd34 | 2018-02-21 14:59:35 -0800 | [diff] [blame] | 340 | def bondIntfs( self, intf1, intf2, bondedName="bond0" ): |
| 341 | ''' |
| 342 | Bond two interfaces together |
| 343 | intf1 - the first interface to bond |
| 344 | intf2 - the second interface to bond |
| 345 | bondedName - the prefix of the new interface name |
| 346 | ''' |
| 347 | # Setup bonded interface |
| 348 | # TODO: support multiple bonded interfaces. Maybe just changed self.bond0 to a list of bonded intf names? |
| 349 | self.bond0 = "%s-%s" % ( self.name, bondedName ) |
| 350 | self.cmd('modprobe bonding') |
| 351 | self.cmd('ip link add %s type bond' % self.bond0) |
| 352 | self.cmd('ip link set %s down' % intf1.name) |
| 353 | self.cmd('ip link set %s down' % intf2.name) |
| 354 | self.cmd('ip link set %s master %s' % (intf1.name, self.bond0)) |
| 355 | self.cmd('ip link set %s master %s' % (intf2.name, self.bond0)) |
| 356 | self.cmd('ip addr flush dev %s' % intf1.name) |
| 357 | self.cmd('ip addr flush dev %s' % intf2.name) |
| 358 | self.cmd('ip link set %s up' % self.bond0) |
| 359 | # NOTE: Issues with bonded intfs in mn data structures. Either only show bonded intf |
| 360 | # or create a custom class to handle bonded infs?? |
| 361 | lowestIntf = min( [ intf1, intf2 ] ) |
| 362 | highestIntf = max( [ intf1, intf2 ] ) |
| 363 | lowestIntf.name = self.bond0 |
| 364 | self.nameToIntf[self.bond0] = lowestIntf |
| 365 | del self.intfs[ self.ports[ highestIntf ] ] |
| 366 | del self.ports[ highestIntf ] |
| 367 | |
You Wang | 5102af1 | 2018-02-08 12:30:12 -0800 | [diff] [blame] | 368 | def terminate(self, **kwargs): |
| 369 | if self.vlan: |
| 370 | self.cmd('ip link remove link %s' % self.vlanIntf) |
| 371 | if self.dualHomed: |
| 372 | self.cmd('ip link set %s down' % self.bond0) |
| 373 | self.cmd('ip link delete %s' % self.bond0) |
| 374 | if self.dhcpClient: |
| 375 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 376 | self.cmd('rm -rf %s' % self.pidFile) |
| 377 | if self.dhcpServer: |
| 378 | self.cmd('kill -9 `cat %s`' % self.pidFile) |
| 379 | self.cmd('rm -rf %s' % self.pidFile) |
| 380 | super(TrellisHost, self).terminate() |
| 381 | |
Jonghwan Hyun | 3731d6a | 2017-10-19 11:59:31 -0700 | [diff] [blame] | 382 | # Utility for IPv6 |
| 383 | def mac_to_ipv6_linklocal(mac): |
| 384 | ''' |
| 385 | Convert mac address to link-local IPv6 address |
| 386 | ''' |
| 387 | # Remove the most common delimiters; dots, dashes, etc. |
| 388 | mac_value = int(mac.translate(None, ' .:-'), 16) |
| 389 | |
| 390 | # Split out the bytes that slot into the IPv6 address |
| 391 | # XOR the most significant byte with 0x02, inverting the |
| 392 | # Universal / Local bit |
| 393 | high2 = mac_value >> 32 & 0xffff ^ 0x0200 |
| 394 | high1 = mac_value >> 24 & 0xff |
| 395 | low1 = mac_value >> 16 & 0xff |
| 396 | low2 = mac_value & 0xffff |
| 397 | |
| 398 | return 'fe80::{:04x}:{:02x}ff:fe{:02x}:{:04x}'.format(high2, high1, low1, low2) |