def handlenodemsg(self, msg):
''' Determine and return the servers to which this node message should
be forwarded. Also keep track of link-layer nodes and the mapping of
nodes to servers.
'''
serverlist = []
handle_locally = False
serverfiletxt = None
# snoop Node Message for emulation server TLV and record mapping
n = msg.tlvdata[coreapi.CORE_TLV_NODE_NUMBER]
# replicate link-layer nodes on all servers
nodetype = msg.gettlv(coreapi.CORE_TLV_NODE_TYPE)
if nodetype is not None:
try:
nodecls = coreapi.node_class(nodetype)
except KeyError:
self.session.warn("broker invalid node type %s" % nodetype)
return (False, serverlist)
if nodecls is None:
self.session.warn("broker unimplemented node type %s" %
nodetype)
return (False, serverlist)
if issubclass(nodecls, PyCoreNet) and \
nodetype != coreapi.CORE_NODE_WLAN:
# network node replicated on all servers; could be optimized
# don't replicate WLANs, because ebtables rules won't work
serverlist = self.getserverlist()
handle_locally = True
self.addnet(n)
for server in serverlist:
self.addnodemap(server, n)
# do not record server name for networks since network
# nodes are replicated across all server
return (handle_locally, serverlist)
if issubclass(nodecls, PyCoreNet) and \
nodetype == coreapi.CORE_NODE_WLAN:
# special case where remote WLANs not in session._objs, and no
# node response message received, so they are counted here
if msg.gettlv(coreapi.CORE_TLV_NODE_EMUSRV) is not None:
self.incrbootcount()
elif issubclass(nodecls, PyCoreNode):
name = msg.gettlv(coreapi.CORE_TLV_NODE_NAME)
if name:
serverfiletxt = "%s %s %s" % (n, name, nodecls)
if issubclass(nodecls, PhysicalNode):
# remember physical nodes
self.addphys(n)
# emulation server TLV specifies server
server = msg.gettlv(coreapi.CORE_TLV_NODE_EMUSRV)
if server is not None:
self.addnodemap(server, n)
if server not in serverlist:
serverlist.append(server)
if serverfiletxt and self.session.master:
self.writenodeserver(serverfiletxt, server)
# hook to update coordinates of physical nodes
if n in self.phys:
self.session.mobility.physnodeupdateposition(msg)
return (handle_locally, serverlist)
def handlenodemsg(self, msg):
''' Determine and return the servers to which this node message should
be forwarded. Also keep track of link-layer nodes and the mapping of
nodes to servers.
'''
serverlist = []
handle_locally = False
serverfiletxt = None
# snoop Node Message for emulation server TLV and record mapping
n = msg.tlvdata[coreapi.CORE_TLV_NODE_NUMBER]
# replicate link-layer nodes on all servers
nodetype = msg.gettlv(coreapi.CORE_TLV_NODE_TYPE)
if nodetype is not None:
try:
nodecls = coreapi.node_class(nodetype)
except KeyError:
self.session.warn("broker invalid node type %s" % nodetype)
return (False, serverlist)
if nodecls is None:
self.session.warn("broker unimplemented node type %s" % nodetype)
return (False, serverlist)
if issubclass(nodecls, PyCoreNet) and \
nodetype != coreapi.CORE_NODE_WLAN:
# network node replicated on all servers; could be optimized
# don't replicate WLANs, because ebtables rules won't work
serverlist = self.getserverlist()
handle_locally = True
self.addnet(n)
for server in serverlist:
self.addnodemap(server, n)
# do not record server name for networks since network
# nodes are replicated across all server
return (handle_locally, serverlist)
if issubclass(nodecls, PyCoreNet) and \
nodetype == coreapi.CORE_NODE_WLAN:
# special case where remote WLANs not in session._objs, and no
# node response message received, so they are counted here
if msg.gettlv(coreapi.CORE_TLV_NODE_EMUSRV) is not None:
self.incrbootcount()
elif issubclass(nodecls, PyCoreNode):
name = msg.gettlv(coreapi.CORE_TLV_NODE_NAME)
if name:
serverfiletxt = "%s %s %s" % (n, name, nodecls)
if issubclass(nodecls, PhysicalNode):
# remember physical nodes
self.addphys(n)
# emulation server TLV specifies server
server = msg.gettlv(coreapi.CORE_TLV_NODE_EMUSRV)
if server is not None:
self.addnodemap(server, n)
if server not in serverlist:
serverlist.append(server)
if serverfiletxt and self.session.master:
self.writenodeserver(serverfiletxt, server)
# hook to update coordinates of physical nodes
if n in self.phys:
self.session.mobility.physnodeupdateposition(msg)
return (handle_locally, serverlist)
def handlenodemsg(self, msg):
''' Process a Node Message to add/delete or move a node on
the SDT display. Node properties are found in session._objs or
self.remotes for remote nodes (or those not yet instantiated).
'''
# for distributed sessions to work properly, the SDT option should be
# enabled prior to starting the session
if not self.is_enabled():
return False
# node.(objid, type, icon, name) are used.
nodenum = msg.gettlv(coreapi.CORE_TLV_NODE_NUMBER)
if not nodenum:
return
x = msg.gettlv(coreapi.CORE_TLV_NODE_XPOS)
y = msg.gettlv(coreapi.CORE_TLV_NODE_YPOS)
z = None
name = msg.gettlv(coreapi.CORE_TLV_NODE_NAME)
nodetype = msg.gettlv(coreapi.CORE_TLV_NODE_TYPE)
model = msg.gettlv(coreapi.CORE_TLV_NODE_MODEL)
icon = msg.gettlv(coreapi.CORE_TLV_NODE_ICON)
net = False
if nodetype == coreapi.CORE_NODE_DEF or \
nodetype == coreapi.CORE_NODE_PHYS or \
nodetype == coreapi.CORE_NODE_XEN:
if model is None:
model = "router"
type = model
elif nodetype != None:
type = coreapi.node_class(nodetype).type
net = True
else:
type = None
try:
node = self.session.obj(nodenum)
except KeyError:
node = None
if node:
self.updatenode(node.objid, msg.flags, x, y, z,
node.name, node.type, node.icon)
else:
if nodenum in self.remotes:
remote = self.remotes[nodenum]
if name is None:
name = remote.name
if type is None:
type = remote.type
if icon is None:
icon = remote.icon
else:
remote = self.Bunch(objid=nodenum, type=type, icon=icon,
name=name, net=net, links=set())
self.remotes[nodenum] = remote
remote.pos = (x, y, z)
self.updatenode(nodenum, msg.flags, x, y, z, name, type, icon)
def handlenodemsg(self, msg):
''' Process a Node Message to add/delete or move a node on
the SDT display. Node properties are found in session._objs or
self.remotes for remote nodes (or those not yet instantiated).
'''
# for distributed sessions to work properly, the SDT option should be
# enabled prior to starting the session
if not self.is_enabled():
return False
# node.(objid, type, icon, name) are used.
nodenum = msg.gettlv(coreapi.CORE_TLV_NODE_NUMBER)
if not nodenum:
return
x = msg.gettlv(coreapi.CORE_TLV_NODE_XPOS)
y = msg.gettlv(coreapi.CORE_TLV_NODE_YPOS)
z = None
name = msg.gettlv(coreapi.CORE_TLV_NODE_NAME)
nodetype = msg.gettlv(coreapi.CORE_TLV_NODE_TYPE)
model = msg.gettlv(coreapi.CORE_TLV_NODE_MODEL)
icon = msg.gettlv(coreapi.CORE_TLV_NODE_ICON)
net = False
if nodetype == coreapi.CORE_NODE_DEF or \
nodetype == coreapi.CORE_NODE_PHYS or \
nodetype == coreapi.CORE_NODE_XEN:
if model is None:
model = "router"
type = model
elif nodetype != None:
type = coreapi.node_class(nodetype).type
net = True
else:
type = None
try:
node = self.session.obj(nodenum)
except KeyError:
node = None
if node:
self.updatenode(node.objid, msg.flags, x, y, z, node.name,
node.type, node.icon)
else:
if nodenum in self.remotes:
remote = self.remotes[nodenum]
if name is None:
name = remote.name
if type is None:
type = remote.type
if icon is None:
icon = remote.icon
else:
remote = self.Bunch(objid=nodenum,
type=type,
icon=icon,
name=name,
net=net,
links=set())
self.remotes[nodenum] = remote
remote.pos = (x, y, z)
self.updatenode(nodenum, msg.flags, x, y, z, name, type, icon)
