def extra_pdrs(self):
return [
IE_CreatePDR(IE_list=[
IE_FAR_Id(id=3),
IE_PDI(IE_list=[
IE_NetworkInstance(instance="access"),
self.ie_sdf_filter_for_redirect(),
IE_SourceInterface(interface="Access"),
self.ie_ue_ip_address(),
]),
IE_PDR_Id(id=3),
IE_Precedence(precedence=100),
]),
IE_CreatePDR(IE_list=[
IE_FAR_Id(id=4),
IE_PDI(IE_list=[
IE_NetworkInstance(instance="access"),
IE_SDF_Filter(
FD=1,
flow_description="permit out ip from %s to assigned" %
self.drop_ip),
IE_SourceInterface(interface="Access"),
self.ie_ue_ip_address(),
]),
IE_PDR_Id(id=4),
IE_Precedence(precedence=100),
]),
]
def establish_session(self):
self.cur_seid = seid()
resp = self.chat(
PFCPSessionEstablishmentRequest(IE_list=[
IE_CreateFAR(IE_list=[
IE_ApplyAction(FORW=1),
IE_FAR_Id(id=1),
IE_ForwardingParameters(IE_list=[
IE_DestinationInterface(interface="SGi-LAN/N6-LAN"),
IE_NetworkInstance(instance="sgi")
])
]),
self.reverse_far(),
# FIXME: this is not handled properly :(
IE_CreateFAR(IE_list=[
IE_ApplyAction(FORW=1),
IE_FAR_Id(id=3),
IE_ForwardingParameters(IE_list=[
IE_DestinationInterface(interface="SGi-LAN/N6-LAN"),
IE_NetworkInstance(instance="sgi"),
self.ie_redirect_information(),
])
]),
IE_CreateFAR(IE_list=[
IE_ApplyAction(DROP=1),
IE_FAR_Id(id=4),
]),
self.forward_pdr(),
IE_CreatePDR(IE_list=[
IE_FAR_Id(id=2),
IE_PDI(IE_list=[
IE_NetworkInstance(instance="sgi"),
IE_SDF_Filter(FD=1,
flow_description=
"permit out ip from any to assigned"),
IE_SourceInterface(interface="SGi-LAN/N6-LAN"),
self.ie_ue_ip_address(SD=1)
]),
IE_PDR_Id(id=2),
IE_Precedence(precedence=200),
])
] + self.extra_pdrs(
) + [self.ie_fseid(),
IE_NodeId(id_type=2, id="ergw")]),
PFCPSessionEstablishmentResponse,
seid=self.cur_seid)
self.assertEqual(CauseValues[resp[IE_Cause].cause], "Request accepted")
self.verify_ie_fseid(resp[IE_FSEID])
self.assertEqual(resp[IE_FSEID].seid, self.cur_seid)
if IE_CreatedPDR in resp:
self.teid = resp[IE_CreatedPDR][IE_FTEID].TEID
self.logger.info(self.teid)
def forward_pdr(self):
return IE_CreatePDR(IE_list=[
IE_FAR_Id(id=1),
IE_PDI(IE_list=[
IE_NetworkInstance(instance="access"),
IE_SDF_Filter(
FD=1,
flow_description="permit out ip from any to assigned"),
IE_SourceInterface(interface="Access"),
self.ie_ue_ip_address(),
]),
IE_PDR_Id(id=1),
IE_Precedence(precedence=200),
])
def establish_session_request(self):
self.cur_seid = seid()
resp = self.chat(
PFCPSessionEstablishmentRequest(IE_list=[
#UPLINK FAR=1,PDR=1
IE_CreateFAR(IE_list=[IE_ApplyAction(
FORW=1), IE_FAR_Id(id=1)]),
IE_CreatePDR(IE_list=[
IE_FAR_Id(id=1),
IE_PDI(IE_list=[
IE_NetworkInstance(instance="access"),
IE_SDF_Filter(FD=1,
flow_description=
"permit out ip from any to assigned"),
IE_SourceInterface(interface="Access"),
self.ie_ue_ip_address(SD=0),
IE_FTEID(V4=1, TEID=1111, ipv4=N3_IP_V4)
]),
IE_PDR_Id(id=1),
IE_Precedence(precedence=200),
IE_OuterHeaderRemoval(),
]),
#DOWNLINK FAR=2,PDR=2
IE_CreateFAR(IE_list=[
IE_ApplyAction(FORW=1),
IE_FAR_Id(id=2),
IE_ForwardingParameters(IE_list=[
IE_DestinationInterface(interface="Access"),
IE_NetworkInstance(instance="n6"),
IE_OuterHeaderCreation(
GTPUUDPIPV4=1, TEID=2222, ipv4=GNB_IP_V4)
])
]),
IE_CreatePDR(IE_list=[
IE_FAR_Id(id=2),
IE_PDI(IE_list=[
IE_NetworkInstance(instance="n6"),
IE_SourceInterface(interface="Core"),
self.ie_ue_ip_address(SD=1)
]),
IE_PDR_Id(id=2),
IE_Precedence(precedence=200),
IE_OuterHeaderRemoval(),
]),
self.ie_fseid(),
IE_NodeId(id_type=2, id="cp")
]),
seid=self.cur_seid)
def establish_reporting_session(self, report_app=False):
self.cur_seid = seid()
resp = self.chat(
PFCPSessionEstablishmentRequest(IE_list=filter_ies([
IE_CreateFAR(IE_list=[
IE_ApplyAction(FORW=1),
IE_FAR_Id(id=1),
IE_ForwardingParameters(IE_list=[
IE_DestinationInterface(interface="SGi-LAN/N6-LAN"),
IE_NetworkInstance(instance="sgi")
])
]),
IE_CreateFAR(IE_list=[
IE_ApplyAction(FORW=1),
IE_FAR_Id(id=2),
IE_ForwardingParameters(IE_list=[
IE_DestinationInterface(interface="Access"),
IE_NetworkInstance(instance="access")
])
]),
IE_CreateURR(IE_list=[
IE_MeasurementMethod(EVENT=1, VOLUM=1, DURAT=1),
IE_ReportingTriggers(start_of_traffic=1),
IE_TimeQuota(quota=60),
IE_URR_Id(id=1)
]) if not report_app else None,
IE_CreatePDR(IE_list=filter_ies([
IE_FAR_Id(id=1),
IE_PDI(IE_list=[
IE_NetworkInstance(instance="access"),
IE_SDF_Filter(FD=1,
flow_description=
"permit out ip from any to assigned"),
IE_SourceInterface(interface="Access"),
self.ie_ue_ip_address()
]),
IE_PDR_Id(id=1),
IE_Precedence(precedence=200),
IE_URR_Id(id=1) if not report_app else None
])),
IE_CreatePDR(IE_list=[
IE_FAR_Id(id=2),
IE_PDI(IE_list=[
IE_NetworkInstance(instance="sgi"),
IE_SDF_Filter(FD=1,
flow_description=
"permit out ip from any to assigned"),
IE_SourceInterface(interface="SGi-LAN/N6-LAN"),
self.ie_ue_ip_address(SD=1)
]),
IE_PDR_Id(id=2),
IE_Precedence(precedence=200),
]),
IE_CreateURR(IE_list=[
IE_MeasurementMethod(VOLUM=1, DURAT=1),
IE_ReportingTriggers(),
IE_TimeQuota(quota=60),
IE_URR_Id(id=2)
]) if report_app else None,
IE_CreatePDR(IE_list=[
IE_FAR_Id(id=1),
IE_PDI(IE_list=[
self.ie_sdf_filter_extra_for_app_pdi(),
IE_ApplicationId(id="TST"),
IE_NetworkInstance(instance="access"),
IE_SourceInterface(interface="Access"),
self.ie_ue_ip_address(),
]),
IE_PDR_Id(id=3),
IE_Precedence(precedence=100),
IE_URR_Id(id=2)
]) if report_app else None,
IE_CreatePDR(IE_list=[
IE_FAR_Id(id=2),
IE_PDI(IE_list=[
# FIXME: this currently appears not to work
# (to be fixed in ip-rules branch)
# IE_SDF_Filter(
# FD=1,
# flow_description="permit out ip from %s to assigned"
# % self.extra_sdf_ip),
IE_ApplicationId(id="TST"),
IE_NetworkInstance(instance="sgi"),
IE_SourceInterface(interface="SGi-LAN/N6-LAN"),
self.ie_ue_ip_address(SD=1),
]),
IE_PDR_Id(id=4),
# FIXME: likely a bug in 20.01 branch: PDR for DL
# traffic must have lower precedence
IE_Precedence(precedence=10),
IE_URR_Id(id=2)
]) if report_app else None,
self.ie_fseid(),
IE_NodeId(id_type=2, id="ergw")
])),
PFCPSessionEstablishmentResponse,
seid=self.cur_seid)
self.assertEqual(CauseValues[resp[IE_Cause].cause], "Request accepted")
self.verify_ie_fseid(resp[IE_FSEID])
self.assertEqual(resp[IE_FSEID].seid, self.cur_seid)
def ie_sdf_filter_extra_for_app_pdi(self):
return IE_SDF_Filter(
FD=1,
flow_description="permit out ip from %s to assigned" %
EXTRA_SDF_IP_V6)
def ie_sdf_filter_for_redirect(self):
return IE_SDF_Filter(
FD=1,
flow_description="permit out ip from %s to assigned" % REDIR_IP_V6)