def process_session_message(self, new_session, process_pdr_rules):
"""
Process the messages recevied from session. Return True
if parsing is successfull.
"""
# Assume things are green
context_response =\
UPFSessionContextState(cause_info=CauseIE(cause_ie=CauseIE.REQUEST_ACCEPTED),
session_snapshot=UPFSessionState(subscriber_id=new_session.subscriber_id,
local_f_teid=new_session.local_f_teid,
session_version=new_session.session_version))
context_response.cause_info.cause_ie = \
SessionStateManager.validate_session_msg(new_session)
if context_response.cause_info.cause_ie != CauseIE.REQUEST_ACCEPTED:
self.logger.error(
"Error : Parsing Error in SetInterface Message %d",
context_response.cause_info.cause_ie)
return context_response
#Create PDR rules
pdr_validator = SessionStateManager._pdr_create_rule_group(
new_session, process_pdr_rules)
if pdr_validator:
context_response.failure_rule_id.pdr.extend(
[pdr_validator.offending_ie])
context_response.cause_info.cause_ie = pdr_validator.cause_info
return context_response
def _prepare_session_config_report(self, stats_msgs):
session_config_dict = {}
for flow_stats in stats_msgs:
for stat in flow_stats:
if stat.table_id != self.tbl_num:
continue
local_f_teid_ng = _get_ng_local_f_id(stat)
if not local_f_teid_ng or local_f_teid_ng == REG_ZERO_VAL:
continue
# Already present
if local_f_teid_ng in session_config_dict:
if local_f_teid_ng != session_config_dict[
local_f_teid_ng].local_f_teid:
self.logger.error(
"Mismatch local TEID value. Need to investigate")
continue
sid = _get_sid(stat)
if not sid:
continue
rule_version = _get_version(stat)
if rule_version == 0:
continue
session_config_dict[local_f_teid_ng] = \
UPFSessionState(
subscriber_id=sid,
session_version=rule_version,
local_f_teid=local_f_teid_ng,
)
SessionStateManager.report_session_config_state(
session_config_dict,
self.ng_config.sessiond_setinterface,
)