def parse_interface(self, node, device_id, interface):
"""
Each interface can have multiple 'address' elements.
"""
if_name = interface.getAttribute('name')
network = self.find_interface_network_object(interface)
if not network:
msg = 'skipping node \'%s\' interface \'%s\': ' \
'unknown network' % (node.name, if_name)
logger.warn(msg)
assert False # XXX for testing
mac, ipv4, ipv6, hostname = self.parse_addresses(interface)
if mac:
hwaddr = MacAddress.from_string(mac[0])
else:
hwaddr = None
ifindex = node.newnetif(network,
addrlist=ipv4 + ipv6,
hwaddr=hwaddr,
ifindex=None,
ifname=if_name)
# TODO: 'hostname' addresses are unused
msg = 'node \'%s\' interface \'%s\' connected ' \
'to network \'%s\'' % (node.name, if_name, network.name)
logger.info(msg)
# set link parameters for wired links
if nodeutils.is_node(
network,
(NodeTypes.HUB, NodeTypes.PEER_TO_PEER, NodeTypes.SWITCH)):
netif = node.netif(ifindex)
self.set_wired_link_parameters(network, netif, device_id)
def parse_interface(self, node, device_id, interface):
"""
Each interface can have multiple 'address' elements.
"""
if_name = interface.getAttribute('name')
network = self.find_interface_network_object(interface)
if not network:
msg = 'skipping node \'%s\' interface \'%s\': ' \
'unknown network' % (node.name, if_name)
logger.warn(msg)
assert False # XXX for testing
mac, ipv4, ipv6, hostname = self.parse_addresses(interface)
if mac:
hwaddr = MacAddress.from_string(mac[0])
else:
hwaddr = None
ifindex = node.newnetif(network, addrlist=ipv4 + ipv6, hwaddr=hwaddr, ifindex=None, ifname=if_name)
# TODO: 'hostname' addresses are unused
msg = 'node \'%s\' interface \'%s\' connected ' \
'to network \'%s\'' % (node.name, if_name, network.name)
logger.info(msg)
# set link parameters for wired links
if nodeutils.is_node(network, (NodeTypes.HUB, NodeTypes.PEER_TO_PEER, NodeTypes.SWITCH)):
netif = node.netif(ifindex)
self.set_wired_link_parameters(network, netif, device_id)
def newveth(self, ifindex=None, ifname=None, net=None):
"""
Create a new interface.
:param int ifindex: index for the new interface
:param str ifname: name for the new interface
:param net: network to associate interface with
:return: nothing
"""
with self.lock:
if ifindex is None:
ifindex = self.newifindex()
if ifname is None:
ifname = "eth%d" % ifindex
sessionid = self.session.short_session_id()
try:
suffix = "%x.%s.%s" % (self.objid, ifindex, sessionid)
except TypeError:
suffix = "%s.%s.%s" % (self.objid, ifindex, sessionid)
localname = "veth" + suffix
if len(localname) >= 16:
raise ValueError("interface local name (%s) too long" % localname)
name = localname + "p"
if len(name) >= 16:
raise ValueError("interface name (%s) too long" % name)
veth = VEth(node=self, name=name, localname=localname, net=net, start=self.up)
if self.up:
utils.check_cmd([constants.IP_BIN, "link", "set", veth.name, "netns", str(self.pid)])
self.check_cmd([constants.IP_BIN, "link", "set", veth.name, "name", ifname])
veth.name = ifname
if self.up:
# TODO: potentially find better way to query interface ID
# retrieve interface information
output = self.check_cmd(["ip", "link", "show", veth.name])
logger.debug("interface command output: %s", output)
output = output.split("\n")
veth.flow_id = int(output[0].strip().split(":")[0]) + 1
logger.debug("interface flow index: %s - %s", veth.name, veth.flow_id)
veth.hwaddr = MacAddress.from_string(output[1].strip().split()[1])
logger.debug("interface mac: %s - %s", veth.name, veth.hwaddr)
try:
self.addnetif(veth, ifindex)
except ValueError as e:
veth.shutdown()
del veth
raise e
return ifindex
def create_interface_data(interface_element):
interface_id = int(interface_element.get("id"))
name = interface_element.get("name")
mac = interface_element.get("mac")
if mac:
mac = MacAddress.from_string(mac)
ip4 = interface_element.get("ip4")
ip4_mask = get_int(interface_element, "ip4_mask")
ip6 = interface_element.get("ip6")
ip6_mask = get_int(interface_element, "ip6_mask")
return InterfaceData(interface_id, name, mac, ip4, ip4_mask, ip6, ip6_mask)
def create_interface_data(interface_element):
interface_id = int(interface_element.get("id"))
name = interface_element.get("name")
mac = interface_element.get("mac")
if mac:
mac = MacAddress.from_string(mac)
ip4 = interface_element.get("ip4")
ip4_mask = get_int(interface_element, "ip4_mask")
ip6 = interface_element.get("ip6")
ip6_mask = get_int(interface_element, "ip6_mask")
return InterfaceData(interface_id, name, mac, ip4, ip4_mask, ip6, ip6_mask)
def buildplatformxml(self, ctrlnet):
"""
Build a platform.xml file now that all nodes are configured.
"""
values = self.getconfig(None, "emane",
self.emane_config.getdefaultvalues())[1]
nemid = int(self.emane_config.valueof("nem_id_start", values))
platformxmls = {}
# assume self._objslock is already held here
for key in sorted(self._emane_nodes.keys()):
emane_node = self._emane_nodes[key]
nems = emane_node.buildplatformxmlentry(self.xmldoc("platform"))
for netif in sorted(nems, key=lambda x: x.node.objid):
nementry = nems[netif]
nementry.setAttribute("id", "%d" % nemid)
key = netif.node.objid
if netif.transport_type == "raw":
key = "host"
otadev = ctrlnet.brname
eventdev = ctrlnet.brname
else:
otadev = None
eventdev = None
if key not in platformxmls:
platformxmls[key] = self.newplatformxmldoc(
values, otadev, eventdev)
doc = platformxmls[key]
plat = doc.getElementsByTagName("platform").pop()
plat.appendChild(nementry)
emane_node.setnemid(netif, nemid)
macstr = self._hwaddr_prefix + ":00:00:"
macstr += "%02X:%02X" % ((nemid >> 8) & 0xFF, nemid & 0xFF)
netif.sethwaddr(MacAddress.from_string(macstr))
nemid += 1
for key in sorted(platformxmls.keys()):
if key == "host":
self.xmlwrite(platformxmls["host"], "platform.xml")
continue
self.xmlwrite(platformxmls[key], "platform%d.xml" % key)
def build_node_platform_xml(emane_manager, control_net, node, nem_id,
platform_xmls):
"""
Create platform xml for a specific node.
:param core.emane.emanemanager.EmaneManager emane_manager: emane manager with emane configurations
:param core.netns.nodes.CtrlNet control_net: control net node for this emane network
:param core.emane.nodes.EmaneNode node: node to write platform xml for
:param int nem_id: nem id to use for interfaces for this node
:param dict platform_xmls: stores platform xml elements to append nem entries to
:return: the next nem id that can be used for creating platform xml files
:rtype: int
"""
logging.debug("building emane platform xml for node(%s): %s", node,
node.name)
nem_entries = {}
if node.model is None:
logging.warn("warning: EmaneNode %s has no associated model",
node.name)
return nem_entries
for netif in node.netifs():
# build nem xml
nem_definition = nem_file_name(node.model, netif)
nem_element = etree.Element("nem",
id=str(nem_id),
name=netif.localname,
definition=nem_definition)
# check if this is an external transport, get default config if an interface specific one does not exist
config = emane_manager.getifcconfig(node.model.object_id, netif,
node.model.name)
if is_external(config):
nem_element.set("transport", "external")
platform_endpoint = "platformendpoint"
add_param(nem_element, platform_endpoint,
config[platform_endpoint])
transport_endpoint = "transportendpoint"
add_param(nem_element, transport_endpoint,
config[transport_endpoint])
else:
# build transport xml
transport_type = netif.transport_type
if not transport_type:
logging.info("warning: %s interface type unsupported!",
netif.name)
transport_type = "raw"
transport_file = transport_file_name(node.objid, transport_type)
transport_element = etree.SubElement(nem_element,
"transport",
definition=transport_file)
# add transport parameter
add_param(transport_element, "device", netif.name)
# add nem entry
nem_entries[netif] = nem_element
# merging code
key = netif.node.objid
if netif.transport_type == "raw":
key = "host"
otadev = control_net.brname
eventdev = control_net.brname
else:
otadev = None
eventdev = None
platform_element = platform_xmls.get(key)
if platform_element is None:
platform_element = etree.Element("platform")
if otadev:
emane_manager.set_config("otamanagerdevice", otadev)
if eventdev:
emane_manager.set_config("eventservicedevice", eventdev)
# append all platform options (except starting id) to doc
for configuration in emane_manager.emane_config.emulator_config:
name = configuration.id
if name == "platform_id_start":
continue
value = emane_manager.get_config(name)
add_param(platform_element, name, value)
# add platform xml
platform_xmls[key] = platform_element
platform_element.append(nem_element)
node.setnemid(netif, nem_id)
macstr = _hwaddr_prefix + ":00:00:"
macstr += "%02X:%02X" % ((nem_id >> 8) & 0xFF, nem_id & 0xFF)
netif.sethwaddr(MacAddress.from_string(macstr))
# increment nem id
nem_id += 1
for key in sorted(platform_xmls.keys()):
if key == "host":
file_name = "platform.xml"
else:
file_name = "platform%d.xml" % key
platform_element = platform_xmls[key]
doc_name = "platform"
file_path = os.path.join(emane_manager.session.session_dir, file_name)
create_file(platform_element, doc_name, file_path)
return nem_id
def build_node_platform_xml(emane_manager, control_net, node, nem_id, platform_xmls):
"""
Create platform xml for a specific node.
:param core.emane.emanemanager.EmaneManager emane_manager: emane manager with emane configurations
:param core.netns.nodes.CtrlNet control_net: control net node for this emane network
:param core.emane.nodes.EmaneNode node: node to write platform xml for
:param int nem_id: nem id to use for interfaces for this node
:param dict platform_xmls: stores platform xml elements to append nem entries to
:return: the next nem id that can be used for creating platform xml files
:rtype: int
"""
logger.debug("building emane platform xml for node(%s): %s", node, node.name)
nem_entries = {}
if node.model is None:
logger.warn("warning: EmaneNode %s has no associated model", node.name)
return nem_entries
for netif in node.netifs():
# build nem xml
nem_definition = nem_file_name(node.model, netif)
nem_element = etree.Element("nem", id=str(nem_id), name=netif.localname, definition=nem_definition)
# check if this is an external transport, get default config if an interface specific one does not exist
config = emane_manager.getifcconfig(node.model.object_id, netif, node.model.name)
if is_external(config):
nem_element.set("transport", "external")
platform_endpoint = "platformendpoint"
add_param(nem_element, platform_endpoint, config[platform_endpoint])
transport_endpoint = "transportendpoint"
add_param(nem_element, transport_endpoint, config[transport_endpoint])
else:
# build transport xml
transport_type = netif.transport_type
if not transport_type:
logger.info("warning: %s interface type unsupported!", netif.name)
transport_type = "raw"
transport_file = transport_file_name(node.objid, transport_type)
transport_element = etree.SubElement(nem_element, "transport", definition=transport_file)
# add transport parameter
add_param(transport_element, "device", netif.name)
# add nem entry
nem_entries[netif] = nem_element
# merging code
key = netif.node.objid
if netif.transport_type == "raw":
key = "host"
otadev = control_net.brname
eventdev = control_net.brname
else:
otadev = None
eventdev = None
platform_element = platform_xmls.get(key)
if platform_element is None:
platform_element = etree.Element("platform")
if otadev:
emane_manager.set_config("otamanagerdevice", otadev)
if eventdev:
emane_manager.set_config("eventservicedevice", eventdev)
# append all platform options (except starting id) to doc
for configuration in emane_manager.emane_config.emulator_config:
name = configuration.id
if name == "platform_id_start":
continue
value = emane_manager.get_config(name)
add_param(platform_element, name, value)
# add platform xml
platform_xmls[key] = platform_element
platform_element.append(nem_element)
node.setnemid(netif, nem_id)
macstr = _hwaddr_prefix + ":00:00:"
macstr += "%02X:%02X" % ((nem_id >> 8) & 0xFF, nem_id & 0xFF)
netif.sethwaddr(MacAddress.from_string(macstr))
# increment nem id
nem_id += 1
for key in sorted(platform_xmls.keys()):
if key == "host":
file_name = "platform.xml"
else:
file_name = "platform%d.xml" % key
platform_element = platform_xmls[key]
doc_name = "platform"
file_path = os.path.join(emane_manager.session.session_dir, file_name)
create_file(platform_element, doc_name, file_path)
return nem_id