--- /dev/null
+"""
+IPv6 test! version: 0.3
+"""
+
+import logger
+import os
+import socket
+import re
+
+import tools
+import libvirt
+import uuid
+from sliver_libvirt import Sliver_Libvirt
+from xml.dom.minidom import parseString
+
+priority=4
+
+radvdConfFile = '/etc/radvd.conf'
+ipv6addrtag = 'ipv6_address'
+
+def start():
+ logger.log("ipv6: plugin starting up...")
+
+def buildLibvirtDefaultNetConfig(dom):
+
+ # create the <network> element
+ networkElem = dom.createElement("network")
+ # create <name> element
+ nameElem = dom.createElement("name")
+ textName = dom.createTextNode("default")
+ nameElem.appendChild(textName)
+ # create <uuid> element
+ uuidElem = dom.createElement("uuid")
+ textUUID = dom.createTextNode(str(uuid.uuid1()))
+ uuidElem.appendChild(textUUID)
+ # create <forward> element
+ forwardElem = dom.createElement("forward")
+ forwardElem.setAttribute("mode", "nat")
+ # create <nat> element
+ natElem = dom.createElement("nat")
+ # create <port> element
+ portElem = dom.createElement("port")
+ portElem.setAttribute("end", "65535")
+ portElem.setAttribute("start", "1024")
+ # create the ipv4 <ip> element
+ ipElem0 = dom.createElement("ip")
+ ipElem0.setAttribute("address", "192.168.122.1")
+ ipElem0.setAttribute("netmask", "255.255.255.0")
+ # create the <dhcp> element
+ dhcpElem = dom.createElement("dhcp")
+ # create the <range> element
+ rangeElem = dom.createElement("range")
+ rangeElem.setAttribute("end", "192.168.122.254")
+ rangeElem.setAttribute("start", "192.168.122.2")
+ # create the <bridge> element
+ bridgeElem = dom.createElement("bridge")
+ bridgeElem.setAttribute("delay", "0")
+ bridgeElem.setAttribute("name", "virbr0")
+ bridgeElem.setAttribute("stp", "on")
+
+ # build the whole thing
+ natElem.appendChild(portElem)
+ forwardElem.appendChild(natElem)
+
+ dhcpElem.appendChild(rangeElem)
+ ipElem0.appendChild(dhcpElem)
+ networkElem.appendChild(nameElem)
+ networkElem.appendChild(uuidElem)
+ networkElem.appendChild(forwardElem)
+ networkElem.appendChild(bridgeElem)
+ networkElem.appendChild(ipElem0)
+ return networkElem
+
+def checkForIPv6(defaultNetworkConfig):
+ netnodes = defaultNetworkConfig.getElementsByTagName('network')
+ hasIPv6 = False
+ for netnode in netnodes:
+ ips = netnode.getElementsByTagName('ip')
+ for ip in ips:
+ if ip.getAttribute('family')=='ipv6':
+ logger.log("ipv6: the configuration already have an IPv6 address/prefix set for the slivers! %s/%s" % (ip.getAttribute('address'), ip.getAttribute('prefix')) )
+ hasIPv6 = True
+ return hasIPv6
+
+
+
+def addIPv6(defaultNetworkConfig, ipv6addr, prefix):
+
+ netnodes = defaultNetworkConfig.getElementsByTagName('network')
+ for netnode in netnodes:
+ # create the ipv6 <ip> element 1
+ ipElem1 = defaultNetworkConfig.createElement("ip")
+ ipElem1.setAttribute("family", "ipv6")
+ ipElem1.setAttribute("address", ipv6addr)
+ ipElem1.setAttribute("prefix", prefix)
+ # create the ipv6 <ip> element 2
+ # it's ugly, I know, but we need a link-local address on the interface!
+ ipElem2 = defaultNetworkConfig.createElement("ip")
+ ipElem2.setAttribute("family", "ipv6")
+ ipElem2.setAttribute("address", "fe80:1234::1")
+ ipElem2.setAttribute("prefix", "64")
+ # adding to the 'defaultNetworkConfig'
+ netnode.appendChild(ipElem1)
+ netnode.appendChild(ipElem2)
+ return defaultNetworkConfig
+
+def changeIPv6(dom, ipv6addr, prefix):
+ ips = dom.getElementsByTagName('ip')
+ for ip in ips:
+ if ip.getAttribute("family")=='ipv6' and not(re.match(r'fe80(.*)', ip.getAttribute("address"), re.I)):
+ ip.setAttribute("address", ipv6addr)
+ ip.setAttribute("prefix", prefix)
+ return dom
+
+
+def removeIPv6(dom):
+ networks = dom.getElementsByTagName('network')
+ for network in networks:
+ ips = network.getElementsByTagName('ip')
+ for ip in ips:
+ if ip.getAttribute("family")=='ipv6':
+ network.removeChild(ip)
+ return dom
+
+
+def checkIfIPv6IsDifferent(dom, ipv6addr, prefix):
+ netnodes = dom.getElementsByTagName('network')
+ for netnode in netnodes:
+ ips = netnode.getElementsByTagName('ip')
+ for ip in ips:
+ if ip.getAttribute('family')=='ipv6' and not( re.match(r'fe80(.*)', ip.getAttribute("address"), re.I) ) and (ip.getAttribute('address')!=ipv6addr or ip.getAttribute('prefix')!=prefix):
+ logger.log("ipv6: the IPv6 address or prefix are different. Change detected!")
+ return True
+
+ return False
+
+
+def setAutostart(network):
+ try:
+ network.setAutostart(1)
+ except:
+ logger.log("ipv6: network could not set to autostart")
+
+
+def setUp(networkLibvirt, connLibvirt, networkElem, ipv6addr, prefix):
+ newXml = networkElem.toxml()
+ #logger.log(networkElem.toxml())
+ #ret = dir(conn)
+ #for method in ret:
+ # logger.log(repr(method))
+ networkLibvirt.undefine()
+ networkLibvirt.destroy()
+ connLibvirt.networkCreateXML(newXml)
+ networkDefault = connLibvirt.networkDefineXML(newXml)
+ setAutostart(networkDefault)
+ commandForwarding = ['sysctl', '-w', 'net.ipv6.conf.all.forwarding=1']
+ logger.log_call(commandForwarding, timeout=15*60)
+ configRadvd = """
+interface virbr0
+{
+ AdvSendAdvert on;
+ MinRtrAdvInterval 30;
+ MaxRtrAdvInterval 100;
+ prefix %s
+ {
+ AdvOnLink on;
+ AdvAutonomous on;
+ AdvRouterAddr off;
+ };
+
+};
+""" % (ipv6addr+"/"+prefix)
+ f=open(radvdConfFile,'w')
+ f.write(configRadvd)
+ f.close()
+ killRadvd()
+ startRadvd()
+ logger.log("ipv6: set up process finalized. Enabled IPv6 address to the slivers!")
+
+def cleanUp(networkLibvirt, connLibvirt, networkElem):
+ dom = removeIPv6(networkElem)
+ newXml = dom.toxml()
+ networkLibvirt.undefine()
+ networkLibvirt.destroy()
+ # TODO: set autostart for the network
+ connLibvirt.networkCreateXML(newXml)
+ networkDefault = connLibvirt.networkDefineXML(newXml)
+ setAutostart(networkDefault)
+ killRadvd()
+ logger.log("ipv6: cleanup process finalized. The IPv6 support on the slivers was removed.")
+
+def killRadvd():
+ commandKillRadvd = ['killall', 'radvd']
+ logger.log_call(commandKillRadvd, timeout=15*60)
+
+def startRadvd():
+ commandRadvd = ['radvd']
+ logger.log_call(commandRadvd, timeout=15*60)
+
+def getSliverTagId(slivertags):
+ for slivertag in slivertags:
+ if slivertag['tagname']==ipv6addrtag:
+ return slivertag['slice_tag_id']
+
+
+def SetSliverTag(plc, data, tagname):
+
+ for sliver in data['slivers']:
+ # TODO: what about the prefixlen? should we add on it as well?
+ # here, I'm just taking the ipv6addr (value)
+ value,prefixlen = tools.get_sliver_ipv6(sliver['name'])
+
+ node_id = tools.node_id()
+ logger.log("ipv6: slice %s" % (slice) )
+ logger.log("ipv6: nodeid %s" % (node_id) )
+ slivertags = plc.GetSliceTags({"name":slice['name'],"node_id":node_id,"tagname":tagname})
+ logger.log(repr(str(slivertags)))
+ for tag in slivertags:
+ logger.log(repr(str(tag)))
+
+ ipv6addr = plc.GetSliceIPv6Address(slice['name'])
+ # if the value to set is null...
+ if value is None:
+ if ipv6addr is not None or len(ipv6addr)==0:
+ # then, let's remove the slice tag
+ slivertag_id = getSliverTagId(slivertags)
+ plc.DeleteSliceTag(slivertag_id)
+ else:
+ # if the ipv6 addr set on the slice does not exist yet, so, let's add it
+ if (len(ipv6addr)==0 or ipv6addr is None) and len(value)>0:
+ try:
+ slivertag_id=plc.AddSliceTag(slice['name'],tagname,value,node_id)
+ logger.log("ipv6: slice tag added to slice %s" % (slice['name']) )
+ except:
+ logger.log_exc ("ipv6: could not set ipv6 addr tag to the slive. slice=%(slice['name'])s tag=%(tagname)s node_id=%(node_id)d" % locals() )
+ # if the ipv6 addr set on the slice is different on the value provided, let's update it
+ if len(value)>0 and ipv6addr!=value:
+ #slivertag_id=slivertags[0]['slice_tag_id']
+ slivertag_id = getSliverTagId(slivertags)
+ plc.UpdateSliceTag(slivertag_id,value)
+
+
+def GetSlivers(data, config, plc):
+
+ #return
+ #for sliver in data['slivers']:
+ #ipv6addr,prefixlen = tools.get_sliver_ipv6(sliver['name'])
+ #tools.add_ipv6addr_hosts_line(sliver['name'], data['hostname'], ipv6addr)
+ #result = tools.search_ipv6addr_hosts(sliver['name'], ipv6addr)
+ #logger.log("tools: result=%s" % (str(result)) )
+ #tools.remove_all_ipv6addr_hosts(sliver['name'], data['hostname'])
+ #return
+
+
+ type = 'sliver.LXC'
+
+ interfaces = data['interfaces']
+ logger.log(repr(interfaces))
+ for interface in interfaces:
+ logger.log('ipv6: get interface 1: %r'%(interface))
+ if 'interface_tag_ids' in interface:
+ interface_tag_ids = "interface_tag_ids"
+ interface_tag_id = "interface_tag_id"
+ settings = plc.GetInterfaceTags({interface_tag_id:interface[interface_tag_ids]})
+ isSliversIPv6PrefixSet = False
+ for setting in settings:
+ #logger.log(repr(setting))
+ if setting['tagname']=='sliversipv6prefix':
+ ipv6addrprefix = setting['value'].split('/', 1)
+ ipv6addr = ipv6addrprefix[0]
+ prefix = ipv6addrprefix[1]
+ logger.log("ipv6: %s" % (ipv6addr) )
+ validIPv6 = tools.isValidIPv6(ipv6addr)
+ if not(validIPv6):
+ logger.log("ipv6: the 'sliversipv6prefix' tag presented a non-valid IPv6 address!")
+ else:
+ # connecting to the libvirtd
+ connLibvirt = Sliver_Libvirt.getConnection(type)
+ list = connLibvirt.listAllNetworks()
+ for networkLibvirt in list:
+ xmldesc = networkLibvirt.XMLDesc()
+ dom = parseString(xmldesc)
+ hasIPv6 = checkForIPv6(dom)
+ if hasIPv6:
+ # let's first check if the IPv6 is different or is it the same...
+ isDifferent = checkIfIPv6IsDifferent(dom, ipv6addr, prefix)
+ if isDifferent:
+ logger.log("ipv6: the tag 'sliversipv6prefix' was modified! Updating the configuration with the new one...")
+ networkElem = changeIPv6(dom, ipv6addr, prefix)
+ setUp(networkLibvirt, connLibvirt, networkElem, ipv6addr, prefix)
+ logger.log("ipv6: trying to reboot the slivers...")
+ tools.reboot_sliver('blah')
+ else:
+ logger.log("ipv6: starting to redefine the virtual network...")
+ #networkElem = buildLibvirtDefaultNetConfig(dom,ipv6addr,prefix)
+ networkElem = addIPv6(dom, ipv6addr, prefix)
+ setUp(networkLibvirt, connLibvirt, networkElem, ipv6addr, prefix)
+ logger.log("ipv6: trying to reboot the slivers...")
+ tools.reboot_sliver('blah')
+ isSliversIPv6PrefixSet = True
+ if not(isSliversIPv6PrefixSet):
+ # connecting to the libvirtd
+ connLibvirt = Sliver_Libvirt.getConnection(type)
+ list = connLibvirt.listAllNetworks()
+ for networkLibvirt in list:
+ xmldesc = networkLibvirt.XMLDesc()
+ dom = parseString(xmldesc)
+ if checkForIPv6(dom):
+ cleanUp(networkLibvirt, connLibvirt, dom)
+ logger.log("ipv6: trying to reboot the slivers...")
+ tools.reboot_sliver('blah')
+
+ logger.log("ipv6: all done!")
--- /dev/null
+"""
+IPv6 test! version: 0.3
+"""
+
+import logger
+import os
+import socket
+import re
+
+import tools
+import libvirt
+import uuid
+from sliver_libvirt import Sliver_Libvirt
+from xml.dom.minidom import parseString
+
+priority=150
+
+ipv6addrtag = 'ipv6_address'
+
+def start():
+ logger.log("update_ipv6addr_slivertag: plugin starting up...")
+
+
+def getSliverTagId(slivertags):
+ for slivertag in slivertags:
+ if slivertag['tagname']==ipv6addrtag:
+ return slivertag['slice_tag_id']
+ return None
+
+def SetSliverTag(plc, data, tagname):
+
+ for slice in data['slivers']:
+ logger.log("update_ipv6addr_slivertag: starting the update procedure for slice=%s" % (slice['name']) )
+
+ # TODO: what about the prefixlen? should we add on it as well?
+ # here, I'm just taking the ipv6addr (value)
+ value,prefixlen = tools.get_sliver_ipv6(slice['name'])
+
+ node_id = tools.node_id()
+ slivertags = plc.GetSliceTags({"name":slice['name'],"node_id":node_id,"tagname":tagname})
+ #logger.log(repr(str(slivertags)))
+ #for tag in slivertags:
+ # logger.log(repr(str(tag)))
+
+ ipv6addr = plc.GetSliceIPv6Address(slice['name'])
+ logger.log("update_ipv6addr_slivertag: slice=%s getSliceIPv6Address=%s" % (slice['name'],ipv6addr) )
+ # if the value to set is null...
+ if value is None:
+ if ipv6addr is not None:
+ # then, let's remove the slice tag
+ slivertag_id = getSliverTagId(slivertags)
+ if slivertag_id:
+ try:
+ plc.DeleteSliceTag(slivertag_id)
+ logger.log("update_ipv6addr_slivertag: slice tag deleted for slice=%s" % (slice['name']) )
+ except:
+ logger.log("update_ipv6addr_slivertag: slice tag not deleted for slice=%s" % (slice['name']) )
+ # if there's no ipv6 address anymore, then remove everything from the /etc/hosts
+ tools.remove_all_ipv6addr_hosts(slice['name'], data['hostname'])
+ else:
+ # if the ipv6 addr set on the slice does not exist yet, so, let's add it
+ if (ipv6addr is None) and len(value)>0:
+ try:
+ logger.log("update_ipv6addr_slivertag: slice name=%s" % (slice['name']) )
+ slivertag_id=plc.AddSliceTag(slice['name'],tagname,value,node_id)
+ logger.log("update_ipv6addr_slivertag: slice tag added to slice %s" % (slice['name']) )
+ except:
+ logger.log("update_ipv6addr_slivertag: could not set ipv6 addr tag to the sliver. slice=%s tag=%s node_id=%d" % (slice['name'],tagname,node_id) )
+ # if the ipv6 addr set on the slice is different on the value provided, let's update it
+ if (ipv6addr is not None) and (len(value)>0) and (ipv6addr!=value):
+ slivertag_id = getSliverTagId(slivertags)
+ plc.UpdateSliceTag(slivertag_id,value)
+ # ipv6 entry on /etc/hosts of each slice
+ result = tools.search_ipv6addr_hosts(slice['name'], value)
+ if not result:
+ tools.remove_all_ipv6addr_hosts(slice['name'], data['hostname'])
+ tools.add_ipv6addr_hosts_line(slice['name'], data['hostname'], value)
+ logger.log("update_ipv6addr_slivertag: finishing the update process for slice=%s" % (slice['name']) )
+
+def GetSlivers(data, config, plc):
+
+ SetSliverTag(plc, data, ipv6addrtag)
+
+ logger.log("update_ipv6addr_slivertag: all done!")
import sys
import signal
+###################################################
+# Added by Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+
+import re
+import socket
+import fileinput
+
+# TODO: is there anything better to do if the "libvirt", "sliver_libvirt",
+# and "sliver_lxc" are not in place?
+try:
+ import libvirt
+ from sliver_libvirt import Sliver_Libvirt
+ import sliver_lxc
+except:
+ logger.log("Could not import sliver_lxc or libvirt or sliver_libvirt -- which is required here.")
+###################################################
+
import logger
PID_FILE = '/var/run/nodemanager.pid'
return (cgroup_fn, pid)
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# Basically this method is just a copy from "get_process()", just
+# adding one more split() to correctly parse the processes for LXC.
+# Only for LXC!
+# TODO: maybe merge both methods, and put the type as an argument, if
+# it is LXC or vserver
+###################################################
+def get_sliver_process_lxc(slice_name, process_cmdline):
+ """ Utility function to find a process inside of an LXC sliver. Returns
+ (cgroup_fn, pid). cgroup_fn is the filename of the cgroup file for
+ the process, for example /proc/2592/cgroup. Pid is the process id of
+ the process. If the process is not found then (None, None) is returned.
+ """
+ try:
+ cmd = 'grep %s /proc/*/cgroup | grep freezer'%slice_name
+ output = os.popen(cmd).readlines()
+ except:
+ # the slice couldn't be found
+ logger.log("get_sliver_process: couldn't find slice %s" % slice_name)
+ return (None, None)
+
+ cgroup_fn = None
+ pid = None
+ for e in output:
+ try:
+ l = e.rstrip()
+ #logger.log("tools: l=%s" % (l) )
+ path = l.split(':')[0]
+ #logger.log("tools: path=%s" % (path) )
+ comp = l.rsplit(':')[-1]
+ #logger.log("tools: comp=%s" % (comp) )
+ slice_name_check1 = comp.rsplit('/')[-1]
+ #logger.log("tools: slice_name_check1=%s" % (slice_name_check1) )
+ slice_name_check2 = slice_name_check1.rsplit('.')[0]
+ #logger.log("tools: slice_name_check2=%s" % (slice_name_check2) )
+
+ if (slice_name_check2 == slice_name):
+ slice_path = path
+ pid = slice_path.split('/')[2]
+ #logger.log("tools: pid=%s" % (pid) )
+ cmdline = open('/proc/%s/cmdline'%pid).read().rstrip('\n\x00')
+ #logger.log("tools: cmdline=%s" % (cmdline) )
+ #logger.log("tools: process_cmdline=%s" % (process_cmdline) )
+ if (cmdline == process_cmdline):
+ cgroup_fn = slice_path
+ break
+ except:
+ #logger.log("tools: break!")
+ break
+
+ if (not cgroup_fn) or (not pid):
+ logger.log("get_sliver_process: process %s not running in slice %s" % (process_cmdline, slice_name))
+ return (None, None)
+
+ return (cgroup_fn, pid)
+
+
def get_sliver_ifconfig(slice_name, device="eth0"):
""" return the output of "ifconfig" run from inside the sliver.
return result
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# Basically this method is just a copy from "get_sliver_ifconfig()", but,
+# instead, calls the "get_sliver_process_lxc()" method.
+# Only for LXC!
+# TODO: maybe merge both methods, and put the type as an argument, if
+# it is LXC or vserver
+###################################################
+def get_sliver_ifconfig_lxc(slice_name, device="eth0"):
+ """ return the output of "ifconfig" run from inside the sliver.
+
+ side effects: adds "/usr/sbin" to sys.path
+ """
+
+ # See if setns is installed. If it's not then we're probably not running
+ # LXC.
+ if not os.path.exists("/usr/sbin/setns.so"):
+ return None
+
+ # setns is part of lxcsu and is installed to /usr/sbin
+ if not "/usr/sbin" in sys.path:
+ sys.path.append("/usr/sbin")
+ import setns
+
+ (cgroup_fn, pid) = get_sliver_process_lxc(slice_name, "/sbin/init")
+ if (not cgroup_fn) or (not pid):
+ return None
+
+ path = '/proc/%s/ns/net'%pid
+
+ result = None
+ try:
+ setns.chcontext(path)
+
+ args = ["/sbin/ifconfig", device]
+ sub = subprocess.Popen(args, stderr = subprocess.PIPE, stdout = subprocess.PIPE)
+ sub.wait()
+
+ if (sub.returncode != 0):
+ logger.log("get_slice_ifconfig: error in ifconfig: %s" % sub.stderr.read())
+
+ result = sub.stdout.read()
+ finally:
+ setns.chcontext("/proc/1/ns/net")
+
+ return result
+
+
def get_sliver_ip(slice_name):
ifconfig = get_sliver_ifconfig(slice_name)
if not ifconfig:
return None
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# Get the slice ipv6 address
+# Only for LXC!
+###################################################
+def get_sliver_ipv6(slice_name):
+ ifconfig = get_sliver_ifconfig_lxc(slice_name)
+ if not ifconfig:
+ return None,None
+
+ # example: 'inet6 2001:67c:16dc:1302:5054:ff:fea7:7882 prefixlen 64 scopeid 0x0<global>'
+ prog = re.compile(r'inet6\s+(.*)\s+prefixlen\s+(\d+)\s+scopeid\s+(.+)<global>')
+ for line in ifconfig.split("\n"):
+ search = prog.search(line)
+ if search:
+ ipv6addr = search.group(1)
+ prefixlen = search.group(2)
+ return (ipv6addr,prefixlen)
+ return None,None
+
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# Check if the address is a AF_INET6 family address
+###################################################
+def isValidIPv6(ipv6addr):
+ try:
+ socket.inet_pton(socket.AF_INET6, ipv6addr)
+ except socket.error:
+ return False
+ return True
+
### this returns the kind of virtualization on the node
# either 'vs' or 'lxc'
# also caches it in /etc/planetlab/virt for next calls
_has_systemctl = (subprocess.call([ 'systemctl', '--help' ]) == 0)
return _has_systemctl
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# This method was developed to support the ipv6 plugin
+# Only for LXC!
+###################################################
+def reboot_sliver(name):
+ type = 'sliver.LXC'
+ # connecting to the libvirtd
+ connLibvirt = Sliver_Libvirt.getConnection(type)
+ domains = connLibvirt.listAllDomains()
+ for domain in domains:
+ #ret = dir(domain)
+ #for method in ret:
+ # logger.log("ipv6: " + repr(method))
+ #logger.log("tools: " + str(domain.name()) )
+ try:
+ domain.destroy()
+ logger.log("tools: %s destroyed" % (domain.name()) )
+ domain.create()
+ logger.log("tools: %s created" % (domain.name()) )
+ except:
+ logger.log("tools: %s could not be rebooted" % (domain.name()) )
+
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# Get the /etc/hosts file path
+###################################################
+def get_hosts_file_path(slicename):
+ containerDir = os.path.join(sliver_lxc.Sliver_LXC.CON_BASE_DIR, slicename)
+ logger.log("tools: %s" % (containerDir) )
+ return os.path.join(containerDir, 'etc', 'hosts')
+
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# Search if there is a specific ipv6 address in the /etc/hosts file of a given slice
+###################################################
+def search_ipv6addr_hosts(slicename, ipv6addr):
+ hostsFilePath = get_hosts_file_path(slicename)
+ found=False
+ try:
+ for line in fileinput.input(r'%s' % (hostsFilePath)):
+ if re.search(r'%s' % (ipv6addr), line):
+ found=True
+ fileinput.close()
+ return found
+ except:
+ logger.log("tools: error when finding ipv6 address %s in the /etc/hosts file of slice=%s" % (ipv6addr, slicename) )
+
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# Removes all ipv6 addresses from the /etc/hosts file of a given slice
+###################################################
+def remove_all_ipv6addr_hosts(slicename, node):
+ hostsFilePath = get_hosts_file_path(slicename)
+ try:
+ for line in fileinput.input(r'%s' % (hostsFilePath), inplace=True):
+ logger.log("tools: line=%s" % (line) )
+ search = re.search(r'^(.*)\s+(%s|%s)$' % (node,'localhost'), line)
+ if search:
+ ipv6candidate = search.group(1)
+ ipv6candidatestrip = ipv6candidate.strip()
+ logger.log("tools: group1=%s" % (ipv6candidatestrip) )
+ valid = isValidIPv6(ipv6candidatestrip)
+ if not valid:
+ logger.log("tools: address=%s not valid" % (ipv6candidatestrip) )
+ print line,
+ fileinput.close()
+ except:
+ logger.log("tools: could not delete the ipv6 address from the hosts file of slice=%s" % (slicename) )
+
+###################################################
+# Author: Guilherme Sperb Machado <gsm@machados.org>
+###################################################
+# Adds an ipv6 address to the /etc/hosts file within a slice
+###################################################
+def add_ipv6addr_hosts_line(slicename, node, ipv6addr):
+ hostsFilePath = get_hosts_file_path(slicename)
+ logger.log("tools: %s" % (hostsFilePath) )
+ # debugging purposes:
+ #string = "127.0.0.1\tlocalhost\n192.168.100.179\tmyplc-node1-vm.mgmt.local\n"
+ #string = "127.0.0.1\tlocalhost\n"
+ try:
+ with open(hostsFilePath, "a") as file:
+ # debugging purposes only:
+ #file.write(string)
+ file.write(ipv6addr + " " + node + "\n")
+ file.close()
+ except:
+ logger.log("tools: could not add the IPv6 address to the hosts file of slice=%s" % (slicename) )
+
+
+
# how to run a command in a slice
# now this is a painful matter
# the problem is with capsh that forces a bash command to be injected in its exec'ed command
git://git.onelab.eu / nodemanager.git / commitdiff