def shutdown(self):
"""
Control network shutdown.
:return: nothing
"""
if self.serverintf is not None:
try:
utils.check_cmd([
constants.BRCTL_BIN, "delif", self.brname, self.serverintf
])
except CoreCommandError:
logging.exception(
"error deleting server interface %s from bridge %s",
self.serverintf, self.brname)
if self.updown_script is not None:
try:
logging.info("interface %s updown script (%s shutdown) called",
self.brname, self.updown_script)
utils.check_cmd([self.updown_script, self.brname, "shutdown"])
except CoreCommandError:
logging.exception("error issuing shutdown script shutdown")
LxBrNet.shutdown(self)
def startup(self):
"""
Startup functionality for the control network.
:return: nothing
:raises CoreCommandError: when there is a command exception
"""
if self.detectoldbridge():
return
LxBrNet.startup(self)
if self.hostid:
addr = self.prefix.addr(self.hostid)
else:
addr = self.prefix.max_addr()
logger.info("added control network bridge: %s %s", self.brname, self.prefix)
if self.assign_address:
addrlist = ["%s/%s" % (addr, self.prefix.prefixlen)]
self.addrconfig(addrlist=addrlist)
logger.info("address %s", addr)
if self.updown_script:
logger.info("interface %s updown script (%s startup) called", self.brname, self.updown_script)
utils.check_cmd([self.updown_script, self.brname, "startup"])
if self.serverintf:
# sets the interface as a port of the bridge
utils.check_cmd([constants.BRCTL_BIN, "addif", self.brname, self.serverintf])
# bring interface up
utils.check_cmd([constants.IP_BIN, "link", "set", self.serverintf, "up"])
def __init__(self,
session,
objid="ctrlnet",
name=None,
prefix=None,
hostid=None,
start=True,
assign_address=True,
updown_script=None,
serverintf=None):
"""
Creates a CtrlNet instance.
:param core.session.Session session: core session instance
:param int objid: node id
:param str name: node namee
:param prefix: control network ipv4 prefix
:param hostid: host id
:param bool start: start flag
:param str assign_address: assigned address
:param str updown_script: updown script
:param serverintf: server interface
:return:
"""
self.prefix = ipaddress.Ipv4Prefix(prefix)
self.hostid = hostid
self.assign_address = assign_address
self.updown_script = updown_script
self.serverintf = serverintf
LxBrNet.__init__(self, session, objid=objid, name=name, start=start)
def startup(self):
"""
Startup functionality for the control network.
:return: nothing
"""
if self.detectoldbridge():
return
LxBrNet.startup(self)
if self.hostid:
addr = self.prefix.addr(self.hostid)
else:
addr = self.prefix.max_addr()
msg = "Added control network bridge: %s %s" % (self.brname, self.prefix)
addrlist = ["%s/%s" % (addr, self.prefix.prefixlen)]
if self.assign_address:
self.addrconfig(addrlist=addrlist)
msg += " address %s" % addr
logger.info(msg)
if self.updown_script is not None:
logger.info("interface %s updown script (%s startup) called",
self.brname, self.updown_script)
subprocess.check_call([self.updown_script, self.brname, "startup"])
if self.serverintf is not None:
try:
subprocess.check_call([constants.BRCTL_BIN, "addif", self.brname, self.serverintf])
subprocess.check_call([constants.IP_BIN, "link", "set", self.serverintf, "up"])
except subprocess.CalledProcessError:
logger.exception("Error joining server interface %s to controlnet bridge %s",
self.serverintf, self.brname)
def linkconfig(self, netif, bw=None, delay=None, loss=None, duplicate=None, jitter=None, netif2=None):
"""
Apply tc queing disciplines using LxBrNet.linkconfig()
"""
# borrow the tc qdisc commands from LxBrNet.linkconfig()
linux_bridge = LxBrNet(session=self.session, start=False)
linux_bridge.up = True
linux_bridge.linkconfig(netif, bw=bw, delay=delay, loss=loss, duplicate=duplicate, jitter=jitter, netif2=netif2)
del linux_bridge
def linkconfig(self, netif, bw=None, delay=None, loss=None, duplicate=None, jitter=None, netif2=None):
"""
Apply tc queing disciplines using LxBrNet.linkconfig()
"""
# borrow the tc qdisc commands from LxBrNet.linkconfig()
linux_bridge = LxBrNet(session=self.session, start=False)
linux_bridge.up = True
linux_bridge.linkconfig(netif, bw=bw, delay=delay, loss=loss, duplicate=duplicate, jitter=jitter, netif2=netif2)
del linux_bridge
def attach(self, netif):
"""
Attach a network interface, but limit attachment to two interfaces.
:param core.coreobj.PyCoreNetIf netif: network interface
:return: nothing
"""
if len(self._netif) >= 2:
raise ValueError("Point-to-point links support at most 2 network interfaces")
LxBrNet.attach(self, netif)
def attach(self, netif):
"""
Attach a network interface, but limit attachment to two interfaces.
:param core.netns.vif.VEth netif: network interface
:return: nothing
"""
if len(self._netif) >= 2:
raise ValueError("Point-to-point links support at most 2 network interfaces")
LxBrNet.attach(self, netif)
def __init__(self, session, objid=None, name=None, start=True):
"""
Creates a HubNode instance.
:param core.session.Session session: core session instance
:param int objid: node id
:param str name: node namee
:param bool start: start flag
"""
LxBrNet.__init__(self, session, objid, name, start)
if start:
subprocess.check_call([constants.BRCTL_BIN, "setageing", self.brname, "0"])
def attach(self, netif):
"""
Attach a network interface.
:param core.coreobj.PyCoreNetIf netif: network interface
:return: nothing
"""
LxBrNet.attach(self, netif)
if self.model:
netif.poshook = self.model.position_callback
if netif.node is None:
return
x, y, z = netif.node.position.get()
# invokes any netif.poshook
netif.setposition(x, y, z)
def __init__(self, session, objid=None, name=None, start=True, policy=None):
"""
Create a WlanNode instance.
:param core.session.Session session: core session instance
:param int objid: node id
:param str name: node name
:param bool start: start flag
:param policy: wlan policy
"""
LxBrNet.__init__(self, session, objid, name, start, policy)
# wireless model such as basic range
self.model = None
# mobility model such as scripted
self.mobility = None
def __init__(self, session, objid=None, name=None, start=True):
"""
Creates a HubNode instance.
:param core.session.Session session: core session instance
:param int objid: node id
:param str name: node namee
:param bool start: start flag
:raises CoreCommandError: when there is a command exception
"""
LxBrNet.__init__(self, session, objid, name, start)
# TODO: move to startup method
if start:
utils.check_cmd([constants.BRCTL_BIN, "setageing", self.brname, "0"])
def __init__(self, session, objid=None, name=None, start=True, policy=None):
"""
Create a WlanNode instance.
:param core.session.Session session: core session instance
:param int objid: node id
:param str name: node name
:param bool start: start flag
:param policy: wlan policy
"""
LxBrNet.__init__(self, session, objid, name, start, policy)
# wireless model such as basic range
self.model = None
# mobility model such as scripted
self.mobility = None
def attach(self, netif):
"""
Attach a network interface.
:param core.netns.vif.VEth netif: network interface
:return: nothing
"""
LxBrNet.attach(self, netif)
if self.model:
netif.poshook = self.model.position_callback
if netif.node is None:
return
x, y, z = netif.node.position.get()
# invokes any netif.poshook
netif.setposition(x, y, z)
def shutdown(self):
"""
Control network shutdown.
:return: nothing
"""
if self.serverintf is not None:
try:
subprocess.check_call([constants.BRCTL_BIN, "delif", self.brname, self.serverintf])
except subprocess.CalledProcessError:
logger.exception("Error deleting server interface %s to controlnet bridge %s",
self.serverintf, self.brname)
if self.updown_script is not None:
logger.info("interface %s updown script (%s shutdown) called" % (self.brname, self.updown_script))
subprocess.check_call([self.updown_script, self.brname, "shutdown"])
LxBrNet.shutdown(self)
def shutdown(self):
"""
Control network shutdown.
:return: nothing
"""
if self.serverintf is not None:
try:
utils.check_cmd([constants.BRCTL_BIN, "delif", self.brname, self.serverintf])
except CoreCommandError:
logger.exception("error deleting server interface %s from bridge %s", self.serverintf, self.brname)
if self.updown_script is not None:
try:
logger.info("interface %s updown script (%s shutdown) called", self.brname, self.updown_script)
utils.check_cmd([self.updown_script, self.brname, "shutdown"])
except CoreCommandError:
logger.exception("error issuing shutdown script shutdown")
LxBrNet.shutdown(self)
def all_link_data(self, flags):
"""
Retrieve all link data.
:param flags: link flags
:return: all link data
:rtype: list[LinkData]
"""
all_links = LxBrNet.all_link_data(self, flags)
if self.model:
all_links.extend(self.model.all_link_data(flags))
return all_links
def all_link_data(self, flags):
"""
Retrieve all link data.
:param flags: message flags
:return: list of link data
:rtype: list[core.data.LinkData]
"""
all_links = LxBrNet.all_link_data(self, flags)
if self.model:
all_links.extend(self.model.all_link_data(flags))
return all_links
def __init__(self, session, objid="ctrlnet", name=None, prefix=None,
hostid=None, start=True, assign_address=True,
updown_script=None, serverintf=None):
"""
Creates a CtrlNet instance.
:param core.session.Session session: core session instance
:param int objid: node id
:param str name: node namee
:param prefix: control network ipv4 prefix
:param hostid: host id
:param bool start: start flag
:param str assign_address: assigned address
:param str updown_script: updown script
:param serverintf: server interface
:return:
"""
self.prefix = ipaddress.Ipv4Prefix(prefix)
self.hostid = hostid
self.assign_address = assign_address
self.updown_script = updown_script
self.serverintf = serverintf
LxBrNet.__init__(self, session, objid=objid, name=name, start=start)