def __init__(self):
"""
Initialize sessionManager util.
"""
self._session_stub = SessionProxyResponderStub(
get_rpc_channel("sessiond"))
self._abort_session_stub = AbortSessionResponderStub(
get_rpc_channel("abort_session_service"))
self._directorydstub = GatewayDirectoryServiceStub(
get_rpc_channel("directoryd"))
def send_abort_session(client, args):
abort_session_chan = ServiceRegistry.get_rpc_channel("abort_session_service", ServiceRegistry.LOCAL)
abort_session_client = AbortSessionResponderStub(abort_session_chan)
asr = AbortSessionRequest(
session_id=args.session_id,
user_name=args.user_name,
)
asa = abort_session_client.AbortSession(asr)
print(asa)
class SessionManagerUtil(object):
"""
Helper class to communicate with session manager for the tests.
"""
def __init__(self):
"""
Initialize sessionManager util.
"""
self._session_stub = SessionProxyResponderStub(
get_rpc_channel("sessiond"))
self._abort_session_stub = AbortSessionResponderStub(
get_rpc_channel("abort_session_service"))
self._directorydstub = GatewayDirectoryServiceStub(
get_rpc_channel("directoryd"))
def get_flow_match(self, flow_list, flow_match_list):
"""
Populates flow match list
"""
for flow in flow_list:
flow_direction = flow["direction"]
ip_protocol = flow["ip_proto"]
if ip_protocol == FlowMatch.IPPROTO_TCP:
udp_src_port = 0
udp_dst_port = 0
tcp_src_port = (int(flow["tcp_src_port"])
if "tcp_src_port" in flow else 0)
tcp_dst_port = (int(flow["tcp_dst_port"])
if "tcp_dst_port" in flow else 0)
elif ip_protocol == FlowMatch.IPPROTO_UDP:
tcp_src_port = 0
tcp_dst_port = 0
udp_src_port = (int(flow["udp_src_port"])
if "udp_src_port" in flow else 0)
udp_dst_port = (int(flow["udp_dst_port"])
if "udp_dst_port" in flow else 0)
else:
udp_src_port = 0
udp_dst_port = 0
tcp_src_port = 0
tcp_dst_port = 0
src_addr = None
if flow.get("ipv4_src", None):
src_addr = IPAddress(
version=IPAddress.IPV4,
address=flow.get("ipv4_src").encode('utf-8'))
elif flow.get("ipv6_src", None):
src_addr = IPAddress(
version=IPAddress.IPV6,
address=flow.get("ipv6_src").encode('utf-8'))
dst_addr = None
if flow.get("ipv4_dst", None):
dst_addr = IPAddress(
version=IPAddress.IPV4,
address=flow.get("ipv4_dst").encode('utf-8'))
elif flow.get("ipv6_dst", None):
dst_addr = IPAddress(
version=IPAddress.IPV6,
address=flow.get("ipv6_dst").encode('utf-8'))
flow_match_list.append(
FlowDescription(
match=FlowMatch(
ip_dst=dst_addr,
ip_src=src_addr,
tcp_src=tcp_src_port,
tcp_dst=tcp_dst_port,
udp_src=udp_src_port,
udp_dst=udp_dst_port,
ip_proto=ip_protocol,
direction=flow_direction,
),
action=FlowDescription.PERMIT,
))
def create_ReAuthRequest(self, imsi, policy_id, flow_list, qos):
"""
Sends Policy RAR message to session manager
"""
print("Sending Policy RAR message to session manager")
flow_match_list = []
res = None
self.get_flow_match(flow_list, flow_match_list)
policy_qos = FlowQos(
qci=qos["qci"],
max_req_bw_ul=qos["max_req_bw_ul"],
max_req_bw_dl=qos["max_req_bw_dl"],
gbr_ul=qos["gbr_ul"],
gbr_dl=qos["gbr_dl"],
arp=QosArp(
priority_level=qos["arp_prio"],
pre_capability=qos["pre_cap"],
pre_vulnerability=qos["pre_vul"],
),
)
policy_rule = PolicyRule(
id=policy_id,
priority=qos["priority"],
flow_list=flow_match_list,
tracking_type=PolicyRule.NO_TRACKING,
rating_group=1,
monitoring_key=None,
qos=policy_qos,
)
qos = QoSInformation(qci=qos["qci"])
# Get sessionid
req = GetDirectoryFieldRequest(id=imsi, field_key="session_id")
try:
res = self._directorydstub.GetDirectoryField(
req, DEFAULT_GRPC_TIMEOUT)
except grpc.RpcError as err:
logging.error(
"GetDirectoryFieldRequest error for id: %s! [%s] %s",
imsi,
err.code(),
err.details(),
)
self._session_stub.PolicyReAuth(
PolicyReAuthRequest(
session_id=res.value,
imsi=imsi,
rules_to_remove=[],
rules_to_install=[],
dynamic_rules_to_install=[
DynamicRuleInstall(policy_rule=policy_rule)
],
event_triggers=[],
revalidation_time=None,
usage_monitoring_credits=[],
qos_info=qos,
))
def create_AbortSessionRequest(self, imsi: str) -> AbortSessionResult:
# Get SessionID
req = GetDirectoryFieldRequest(id=imsi, field_key="session_id")
try:
res = self._directorydstub.GetDirectoryField(
req, DEFAULT_GRPC_TIMEOUT)
except grpc.RpcError as err:
logging.error(
"GetDirectoryFieldRequest error for id: %s! [%s] %s",
imsi,
err.code(),
err.details(),
)
return self._abort_session_stub.AbortSession(
AbortSessionRequest(
session_id=res.value,
user_name=imsi,
))