def newnetif(self,
net=None,
addrlist=None,
hwaddr=None,
ifindex=None,
ifname=None):
"""
Create a new network interface.
:param net: network to associate with
:param list addrlist: addresses to add on the interface
:param core.misc.ipaddress.MacAddress hwaddr: hardware address to set for interface
:param int ifindex: index of interface to create
:param str ifname: name for interface
:return: interface index
:rtype: int
"""
self.lock.acquire()
try:
# TODO: see if you can move this to emane specific code
if nodeutils.is_node(net, NodeTypes.EMANE):
ifindex = self.newtuntap(ifindex=ifindex,
ifname=ifname,
net=net)
# TUN/TAP is not ready for addressing yet; the device may
# take some time to appear, and installing it into a
# namespace after it has been bound removes addressing;
# save addresses with the interface now
self.attachnet(ifindex, net)
netif = self.netif(ifindex)
netif.sethwaddr(hwaddr)
for addr in utils.maketuple(addrlist):
netif.addaddr(addr)
return ifindex
else:
ifindex = self.newveth(ifindex=ifindex, ifname=ifname, net=net)
if net is not None:
self.attachnet(ifindex, net)
if hwaddr:
self.sethwaddr(ifindex, hwaddr)
if addrlist:
for addr in utils.maketuple(addrlist):
self.addaddr(ifindex, addr)
self.ifup(ifindex)
return ifindex
finally:
self.lock.release()
def newnetif(self,
net=None,
addrlist=None,
hwaddr=None,
ifindex=None,
ifname=None):
"""
Add a network interface. If we are attaching to a CoreNs3Net, this
will be a TunTap. Otherwise dispatch to CoreNode.newnetif().
"""
if not addrlist:
addrlist = []
if not isinstance(net, CoreNs3Net):
return CoreNode.newnetif(self, net, addrlist, hwaddr, ifindex,
ifname)
ifindex = self.newtuntap(ifindex=ifindex, ifname=ifname, net=net)
self.attachnet(ifindex, net)
netif = self.netif(ifindex)
netif.sethwaddr(hwaddr)
for addr in maketuple(addrlist):
netif.addaddr(addr)
addrstr = netif.addrlist[0]
(addr, mask) = addrstr.split('/')
tap = net._tapdevs[netif]
tap.SetAttribute(
"IpAddress",
ns.network.Ipv4AddressValue(ns.network.Ipv4Address(addr)))
tap.SetAttribute(
"Netmask",
ns.network.Ipv4MaskValue(ns.network.Ipv4Mask("/" + mask)))
ns.core.Simulator.Schedule(ns.core.Time('0'), netif.install)
return ifindex
def newnetif(self, net=None, addrlist=None, hwaddr=None, ifindex=None, ifname=None):
"""
This is called when linking with another node. Since this node
represents an interface, we do not create another object here,
but attach ourselves to the given network.
:param core.coreobj.PyCoreNet net: new network instance
:param list[str] addrlist: address list
:param str hwaddr: hardware address
:param int ifindex: interface index
:param str ifname: interface name
:return:
"""
with self.lock:
if ifindex is None:
ifindex = 0
if self.net is not None:
raise ValueError("RJ45 nodes support at most 1 network interface")
self._netif[ifindex] = self
# PyCoreNetIf.node is self
self.node = self
self.ifindex = ifindex
if net is not None:
self.attachnet(net)
if addrlist:
for addr in utils.maketuple(addrlist):
self.addaddr(addr)
return ifindex
def adoptnetif(self, netif, ifindex, hwaddr, addrlist):
"""
The broker builds a GreTap tunnel device to this physical node.
When a link message is received linking this node to another part of
the emulation, no new interface is created; instead, adopt the
GreTap netif as the node interface.
"""
netif.name = "gt%d" % ifindex
netif.node = self
self.addnetif(netif, ifindex)
# use a more reasonable name, e.g. "gt0" instead of "gt.56286.150"
if self.up:
self.cmd([
constants.IP_BIN, "link", "set", "dev", netif.localname, "down"
])
self.cmd([
constants.IP_BIN, "link", "set", netif.localname, "name",
netif.name
])
netif.localname = netif.name
if hwaddr:
self.sethwaddr(ifindex, hwaddr)
for addr in utils.maketuple(addrlist):
self.addaddr(ifindex, addr)
if self.up:
self.cmd([
constants.IP_BIN, "link", "set", "dev", netif.localname, "up"
])
def __init__(self, routers, logfile, debugs=()):
"""
Create a QuaggaConf instance.
:param list routers: routers
:param str logfile: log file name
:param debugs: debug options
"""
routers = "\n!\n".join(map(str, utils.maketuple(routers)))
if debugs:
debugs = "\n".join(utils.maketuple(debugs))
else:
debugs = "! no debugs"
forwarding = "ip forwarding\nipv6 forwarding"
Conf.__init__(self,
logfile=logfile,
debugs=debugs,
routers=routers,
forwarding=forwarding)
def newnetif(self,
net=None,
addrlist=[],
hwaddr=None,
ifindex=None,
ifname=None):
self.lock.acquire()
try:
ifindex = self.newveth(ifindex=ifindex, ifname=ifname, net=net)
if net is not None:
self.attachnet(ifindex, net)
if hwaddr:
self.sethwaddr(ifindex, hwaddr)
for addr in utils.maketuple(addrlist):
self.addaddr(ifindex, addr)
self.ifup(ifindex)
return ifindex
finally:
self.lock.release()
def __init__(self,
ospf6ifs,
area,
routerid,
redistribute="! no redistribute"):
"""
Create a QuaggaOSPF6 instance.
:param list ospf6ifs: ospf6 interfaces
:param area: area
:param routerid: router id
:param str redistribute: redistribute value
"""
ospf6ifs = utils.maketuple(ospf6ifs)
interfaces = "\n!\n".join(map(str, ospf6ifs))
ospfifs = "\n ".join(
map(lambda x: "interface %s area %s" % (x.name(), area), ospf6ifs))
Conf.__init__(self,
interfaces=interfaces,
routerid=routerid,
ospfifs=ospfifs,
redistribute=redistribute)
def newnetif(self, net = None, addrlist = [], hwaddr = None,
ifindex = None, ifname = None):
''' Add a network interface. If we are attaching to a CoreNs3Net, this
will be a TunTap. Otherwise dispatch to CoreNode.newnetif().
'''
if not isinstance(net, CoreNs3Net):
return CoreNode.newnetif(self, net, addrlist, hwaddr, ifindex,
ifname)
ifindex = self.newtuntap(ifindex = ifindex, ifname = ifname, net = net)
self.attachnet(ifindex, net)
netif = self.netif(ifindex)
netif.sethwaddr(hwaddr)
for addr in maketuple(addrlist):
netif.addaddr(addr)
addrstr = netif.addrlist[0]
(addr, mask) = addrstr.split('/')
tap = net._tapdevs[netif]
tap.SetAttribute("IpAddress",
ns.network.Ipv4AddressValue(ns.network.Ipv4Address(addr)))
tap.SetAttribute("Netmask",
ns.network.Ipv4MaskValue(ns.network.Ipv4Mask("/" + mask)))
ns.core.Simulator.Schedule(ns.core.Time('0'), netif.install)
return ifindex
def newnetif(self,
net=None,
addrlist=[],
hwaddr=None,
ifindex=None,
ifname=None):
logger.warn("XEN PVM newnetif(ifindex=%s, ifname=%s) called", ifindex,
ifname)
self.lock.acquire()
if not self.up:
self.lock.release()
raise Exception("Can't access add veth as VM disk isn't ready")
if self.booted:
self.lock.release()
raise Exception("Can't access add veth as VM is already running")
try:
if nodeutils.is_node(net, NodeTypes.EMANE):
raise Exception("Xen PVM doesn't yet support Emane nets")
# ifindex = self.newtuntap(ifindex = ifindex, ifname = ifname,
# net = net)
# # TUN/TAP is not ready for addressing yet; the device may
# # take some time to appear, and installing it into a
# # namespace after it has been bound removes addressing;
# # save addresses with the interface now
# self.attachnet(ifindex, net)
# netif = self.netif(ifindex)
# netif.sethwaddr(hwaddr)
# for addr in maketuple(addrlist):
# netif.addaddr(addr)
# return ifindex
else:
ifindex = self.newveth(ifindex=ifindex,
ifname=ifname,
net=net,
hwaddr=hwaddr)
if net is not None:
self.attachnet(ifindex, net)
rulefile = os.path.join(self.getconfigitem("mount_path"),
self.etcdir,
"udev/rules.d/70-persistent-net.rules")
f = self.openpausednodefile(rulefile, "a")
f.write(
"\n# Xen PVM virtual interface #%s %s with MAC address %s\n" %
(ifindex, self.ifname(ifindex), hwaddr))
# Using MAC address as we"re now loading PVM net driver "early"
# OLD: Would like to use MAC address, but udev isn"t working with paravirtualized NICs. Perhaps the "set hw address" isn"t triggering a rescan.
f.write(
'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="%s", KERNEL=="eth*", NAME="%s"\n'
% (hwaddr, self.ifname(ifindex)))
# f.write("SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", DEVPATH=="/devices/vif-%s/?*", KERNEL=="eth*", NAME="%s"\n" % (ifindex, self.ifname(ifindex)))
f.close()
if hwaddr:
self.sethwaddr(ifindex, hwaddr)
for addr in utils.maketuple(addrlist):
self.addaddr(ifindex, addr)
# self.ifup(ifindex)
return ifindex
finally:
self.lock.release()
