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#!/usr/bin/python
"""
Copyright (C) International Business Machines Corp., 2005, 2006
Authors: Dan Smith <danms@us.ibm.com>
Daniel Stekloff <dsteklof@us.ibm.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; under version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
import sys
import commands
import os
import re
import time
from Xm import *
from Test import *
from config import *
from XenDomain import *
from NetConfig import *
from XmTestLib import *
from __init__ import *
class XenNetDevCmd:
def __init__(self, netDevice, addCmd, removeCmd):
"""Object representing a network device command"""
self.addcmd = addCmd
self.removecmd = removeCmd
self.addhasrun = False
self.rmvhasrun = False
self.netdevice = netDevice
def getAddCmd(self):
return self.addcmd
def getRemoveCmd(self):
return self.removecmd
def hasAddRun(self):
return self.addhasrun
def hasRemoveRun(self):
self.rmvhasrun
def runAddCmd(self, runOnDom0=False):
# Defaults running command on dom0, if console then will run there
if runOnDom0 == False:
dom = self.netdevice.getDomain()
console = dom.getConsole()
console.runCmd(self.addcmd)
else:
status, output = traceCommand(self.addcmd)
if status:
raise NetworkError("Device add cmd failed: %s Status: %d"
% (self.addcmd, status))
self.addhasrun = True
def runRemoveCmd(self, runOnDom0=False):
# Defaults running command on dom0, if console then will run there
if runOnDom0 == False:
dom = self.netdevice.getDomain()
console = dom.getConsole()
console.runCmd(self.removecmd)
else:
status, output = traceCommand(self.removecmd)
if status:
raise NetworkError("Device remove cmd failed: %s Status: %d"
% (self.removecmd, status))
self.removehasrun = True
class XenDevice:
def __init__(self, domain, id, devConfig=None):
"""An object to represent Xen Devices like network and block
@param domain: Domain the device will be added to
@param id: Device identifier
@param devConfig: Initial configuration dictionary for XenDevice
"""
if config:
self.config = devConfig
else:
self.config = {}
self.id = id
self.domain = domain
self.configNode = None
# Commands run when domain is started or devices added and removed.
self.dom0_cmds = []
self.domU_cmds = []
def __str__(self):
"""Convert device config to XenConfig node compatible string"""
confstr = ''
for k, v in self.config.items():
if len(confstr) > 0:
confstr += ', '
if isinstance(v, int):
confstr += "%s=%i" % (k, v)
elif isinstance(v, list) and v:
confstr += "%s=%s" % (k, v)
elif isinstance(v, str) and v:
confstr += "%s=%s" % (k, v)
return confstr
def execAddCmds(self):
# Cmds for when a device is added to the system
if len(self.dom0_cmds) > 0:
for i in range(0, len(self.dom0_cmds)):
if self.dom0_cmds[i].getAddCmd():
self.dom0_cmds[i].runAddCmd(runOnDom0=True)
if len(self.domU_cmds) > 0:
for i in range(0, len(self.domU_cmds)):
if self.domU_cmds[i].getAddCmd():
self.domU_cmds[i].runAddCmd()
def execRemoveCmds(self):
# Cmds for when a device is removed from the system
if len(self.dom0_cmds) > 0:
for i in range(0, len(self.dom0_cmds)):
if (self.dom0_cmds[i].getRemoveCmd()
and self.dom0_cmds[i].hasAddRun() == True):
self.dom0_cmds[i].runRemoveCmd(runOnDom0=True)
if len(self.domU_cmds) > 0:
for i in range(0, len(self.domU_cmds)):
if (self.domU_cmds[i].getRemoveCmd()
and self.domU_cmds[i].hasAddRun() == True):
self.domU_cmds[i].runRemoveCmd()
def removeDevice(self):
self.execRemoveCmds()
def getId(self):
return self.id
def getConfigOpt(self):
return self.configNode
def getDomain(self):
return self.domain
class XenNetDevice(XenDevice):
def __init__(self, domain, id, devConfig=None):
"""An object to represent Xen Network Device
@param domain: Domain the device is being added to
@param id: Network device identifier, interface name like eth0
@param devConfig: Initial dictionary configuration for XenNetDevice
"""
if devConfig:
self.config = devConfig
else:
self.config = {}
self.id = id
self.domain = domain
self.configNode = "vif"
self.dom0_cmds = []
self.domU_cmds = []
self.network = None
self.netmask = None
self.ip = None
self.dom0_alias_ip = None
if domain.getDomainType() == "HVM":
self.config["type"] = "ioemu"
if not self.config.has_key('bridge'):
self.config["bridge"] = "xenbr0"
if self.config.has_key("ip"):
self.setNetDevIP(ip=self.config["ip"])
else:
if NETWORK_IP_RANGE != "dhcp":
self.setNetDevIP()
def __del__(self):
# Make sure we clean up NetConfig's list of ips, so the ip can be
# reused
self.releaseNetDevIP()
def addIfconfigCmd(self, domU=True):
# Method to add start and remove ifconfig functions
if domU == True:
locmd = XenNetDevCmd(self, addCmd="ifconfig lo 127.0.0.1", removeCmd=None)
ifcmd = []
# Start or Add cmd
acmd = 'ifconfig %s inet %s netmask %s up' % (self.id, self.ip, self.netmask)
rcmd = 'ifconfig %s down' % self.id
ifcmd = XenNetDevCmd(self, addCmd=acmd, removeCmd=rcmd)
if domU == True:
self.domU_cmds.append(locmd)
self.domU_cmds.append(ifcmd)
else:
self.dom0_cmds.append(ifcmd)
def removeDevice(self):
self.releaseNetDevIP()
def addDom0AliasCmd(self, dev=DOM0_INTF):
# Method to add start and remove dom0 alias cmds
acmd = 'ip addr add %s dev %s' % (self.dom0_alias_ip, dev)
rcmd = 'ip addr del %s/32 dev %s' % (self.dom0_alias_ip, dev)
aliascmd = XenNetDevCmd(self, addCmd=acmd, removeCmd=rcmd)
self.dom0_cmds.append(aliascmd)
def releaseNetDevIP(self):
# Must remove start cmds for ip configuration and then release from
# NetConfig
self.execRemoveCmds()
self.dom0_cmds = []
self.domU_cmds = []
if self.config.has_key("ip"):
del self.config["ip"]
if self.dom0_alias_ip:
xmtest_netconf.releaseIP("domain0", self.domain.getName(), self.dom0_alias_ip)
xmtest_netconf.releaseIP(self.domain.getName(), self.id, self.ip)
def getNetDevIP(self):
return self.ip
def getDom0AliasIP(self):
return self.dom0_alias_ip
def getNetwork(self):
return self.network
def setNetDevIP(self, ip=None):
# Function to set a new IP for NetDevice.
if NETWORK_IP_RANGE == "dhcp":
raise NetworkError("System configured for dhcp, cannot set new ip.")
if (self.ip and not ip) or ((self.ip and ip) and (self.ip != ip)):
self.releaseNetDevIP()
if not self.netmask:
self.netmask = xmtest_netconf.getNetMask()
if not self.network:
self.network = xmtest_netconf.getNetwork()
if ip:
xmtest_netconf.setIP(self.domain.getName(), self.id, ip)
self.ip = ip
else:
self.ip = xmtest_netconf.getIP(self.domain.getName(), self.id)
self.addIfconfigCmd()
self.config["ip"] = str(self.ip)
# Setup an alias for Dom0
self.dom0_alias_ip = xmtest_netconf.getIP("domain0", self.domain.getName())
self.addDom0AliasCmd()
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