def get_node_file(self, node_id, service_name, filename):
logging.debug("SessionReader(): get_node_file(): instantiated")
#First check if file exists:
logging.debug("SessionReader(): get_node_file(): checking if file exists")
res = str(msg_ifx.send_command('-s'+self.session_number+' CONFIG NODE='+node_id +' OBJECT=services OPAQUE=service:'+service_name+' TYPE=1 -l --tcp'))
file_exists = False
for line in res.splitlines():
if filename in line:
file_exists = True
break
if file_exists == False:
return ""
#Get file contents
logging.debug("SessionReader(): get_node_file(): getting file contents")
res_code = str(msg_ifx.send_command('-s'+self.session_number+' CONFIG NODE='+node_id +' OBJECT=services OPAQUE=service:'+service_name+':'+filename+' TYPE=1 -l --tcp'))
file_code = ""
code_section = False
for code_line in res_code.splitlines():
if code_line.startswith(" DATA:"):
code_section = True
file_code += code_line.split("DATA: ")[1] + "\n"
continue
if code_section:
file_code += code_line + "\n"
return file_code
def __init__(self, session_number=None):
logging.debug("SessionReader(): instantiated")
if session_number == None:
#just get one from /tmp/pycore***
logging.error("SessionReader(): init(): No session number was provided")
return None
self.session_number = session_number
logging.debug("SessionReader(): init(): Retrieving imn filename")
services_resp = str(msg_ifx.send_command('-s'+self.session_number+' SESSION flags=STRING --tcp -l'))
self.imnfilename = ""
for line in services_resp.splitlines():
if "FILE: " in line:
#we know this line has the imn filename
###TODO### Need to make sure we get the correct filename associated with the session
self.imnfilename = line.split("FILE: ")[1].split("|")[0]
break
if self.imnfilename == "":
logging.error("SessionReader(): init(): No associated imn file found. Exiting")
return None
logging.debug("SessionReader(): init(): Found filename: " + str(self.imnfilename))
self.xmlfilename = os.path.join("/tmp","pycore."+str(session_number),"session-deployed.xml")
state = self.get_session_state()
logging.debug("SessionReader(): init(): Current session state: " + str(state))
if state == None:
logging.error("SessionReader(): init(): Session state is not available: " + str(state))
return None
self.conditional_conns = self.relevant_session_to_JSON()
def disable_single_node(self, session_number, cc_dec_number, cc_node):
logging.debug("Swapper(): disable_single_node(): instantiated")
#logging.debug("enable single node cmd: " + '-s'+session_number+' EXECUTE NODE='+cc_dec_number+' NUMBER=1000 COMMAND="ovs-vsctl del-port ovsbr0 '+cc_node["cc_dec_nic"]+' --tcp')
logging.debug("disabling single node cmd: " + '-c /tmp/pycore.' +
session_number + '/' + self.cc_dec_name +
" -- ovs-vsctl del-port ovsbr0 " + cc_node["cc_dec_nic"])
#msg_ifx.send_command('-s'+session_number+' EXECUTE NODE='+cc_dec_number+' NUMBER=1000 COMMAND="ovs-vsctl del-port ovsbr0 '+cc_node["cc_dec_nic"]+'" --tcp')
msg_ifx.run_command('-c /tmp/pycore.' + session_number + '/' +
self.cc_dec_name +
" -- ovs-vsctl del-port ovsbr0 " +
cc_node["cc_dec_nic"])
###TODO: The following does not work with CORE 6.2, there is however a fix in the latest verison of CORE###
msg_ifx.send_command('-s' + session_number + ' LINK N1_NUMBER=' +
cc_dec_number + ' N2_NUMBER=' +
cc_node["number"] +
' GUI_ATTRIBUTES="color=yellow" ')
cc_node["connected"] = False
def enable_single_node(self, session_number, cc_dec_number, cc_node):
logging.debug("Swapper(): enable_single_node(): instantiated")
#logging.debug("enable single node cmd: " + '-s'+session_number+' EXECUTE NODE='+cc_dec_number+' NUMBER=1000 COMMAND="ovs-vsctl add-port ovsbr0 '+cc_node["cc_dec_nic"]+' --tcp')
logging.debug("enable single node cmd: " + '-c /tmp/pycore.' +
session_number + '/' + self.cc_dec_name +
" -- ovs-vsctl add-port ovsbr0 " + cc_node["cc_dec_nic"])
#msg_ifx.send_command('-s'+session_number+' EXECUTE NODE='+cc_dec_number+' NUMBER=1000 COMMAND="ovs-vsctl add-port ovsbr0 '+cc_node["cc_dec_nic"]+'" --tcp')
msg_ifx.run_command('-c /tmp/pycore.' + session_number + '/' +
self.cc_dec_name +
" -- ovs-vsctl add-port ovsbr0 " +
cc_node["cc_dec_nic"])
###TODO: The following will trigger an non-fatal error on core-daemon because it claims the interface numbers need to be specified... still works though
msg_ifx.send_command('-s' + session_number + ' LINK N1_NUMBER=' +
cc_dec_number + ' N2_NUMBER=' +
cc_node["number"] +
' GUI_ATTRIBUTES="color=blue" ')
cc_node["connected"] = True
def set_decnode_conns(self, session_number, cc_dec_number, activate_nodes,
deactivate_nodes):
logging.debug("Swapper(): set_decnode_conns(): instantiated")
activate_cmd_queue = []
deactivate_cmd_queue = []
send_cmd_queue = []
###Queue up the commands; so that we can execute with little delay in-between
for cc_node in deactivate_nodes:
logging.debug("disabling conn to node cmd: " + '-c /tmp/pycore.' +
session_number + '/' + self.cc_dec_name +
" -- ovs-vsctl del-port ovsbr0 " +
cc_node["cc_dec_nic"])
activate_cmd_queue.append('-c /tmp/pycore.' + session_number +
'/' + self.cc_dec_name +
" -- ovs-vsctl del-port ovsbr0 " +
cc_node["cc_dec_nic"])
send_cmd_queue.append('-s' + session_number + ' LINK N1_NUMBER=' +
cc_dec_number + ' N2_NUMBER=' +
cc_node["number"] +
' GUI_ATTRIBUTES="color=yellow" ')
cc_node["connected"] = False
for cc_node in activate_nodes:
logging.debug("activating conn to node cmd: " + '-c /tmp/pycore.' +
session_number + '/' + self.cc_dec_name +
" -- ovs-vsctl add-port ovsbr0 " +
cc_node["cc_dec_nic"])
#msg_ifx.send_command('-s'+session_number+' EXECUTE NODE='+cc_dec_number+' NUMBER=1000 COMMAND="ovs-vsctl del-port ovsbr0 '+cc_node["cc_dec_nic"]+'" --tcp')
deactivate_cmd_queue.append('-c /tmp/pycore.' + session_number +
'/' + self.cc_dec_name +
" -- ovs-vsctl add-port ovsbr0 " +
cc_node["cc_dec_nic"])
###TODO: The following does not work with CORE 6.2, there is however a fix in the latest verison of CORE###
send_cmd_queue.append('-s' + session_number + ' LINK N1_NUMBER=' +
cc_dec_number + ' N2_NUMBER=' +
cc_node["number"] +
' GUI_ATTRIBUTES="color=blue" ')
cc_node["connected"] = True
##execute deactivations first; since it's better to have lag than duplicates
for cmd in deactivate_cmd_queue:
msg_ifx.run_command(cmd)
for cmd in activate_cmd_queue:
msg_ifx.run_command(cmd)
for cmd in send_cmd_queue:
msg_ifx.send_command(cmd)
def get_node_services(self, node):
logging.debug("SessionReader(): get_node_services(): instantiated")
res_services = str(msg_ifx.send_command('-s'+self.session_number+' CONFIG NODE='+node.attrib["id"] +' OBJECT=services OPAQUE=service' +' TYPE=1 -l --tcp'))
return res_services