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if Unknown GUTI in TAU request, MME sends TAU-reject (#42)

This commit is contained in:
Sukchan Lee 2018-03-27 09:42:23 +09:00
parent dab5bae4ed
commit b1055f703a
2 changed files with 14 additions and 4 deletions
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12
src/mme/emm_sm.c
View File

@ -100,7 +100,7 @@ static void common_register_state(fsm_t *s, event_t *e)
if (!MME_UE_HAVE_IMSI(mme_ue))
{
d_warn("Unknown UE");
d_warn("[EMM] Service request : Unknown UE");
rv = nas_send_service_reject(mme_ue,
EMM_CAUSE_UE_IDENTITY_CANNOT_BE_DERIVED_BY_THE_NETWORK);
d_assert(rv == CORE_OK,,
@ -180,6 +180,16 @@ static void common_register_state(fsm_t *s, event_t *e)
return;
}
if (!MME_UE_HAVE_IMSI(mme_ue))
{
d_warn("[EMM] TAU request : Unknown UE");
rv = nas_send_tau_reject(mme_ue, EMM_CAUSE_UE_IDENTITY_CANNOT_BE_DERIVED_BY_THE_NETWORK);
d_assert(rv == CORE_OK,,
"nas_send_tau_reject() failed");
FSM_TRAN(s, &emm_state_exception);
return;
}
break;
}
case NAS_TRACKING_AREA_UPDATE_COMPLETE:

6
src/mme/s1ap_handler.c
View File

@ -1351,8 +1351,8 @@ void s1ap_handle_enb_configuration_transfer(
target_enb = mme_enb_find_by_enb_id(target_enb_id);
if (target_enb == NULL)
{
d_warn("Cannot find target eNB-id[%d] "
"in eNB-Configuration-Transfer", target_enb_id);
d_warn("eNB configuration transfer : cannot find target eNB-id[%d]",
target_enb_id);
return;
}
@ -1447,7 +1447,7 @@ void s1ap_handle_handover_required(mme_enb_t *enb, s1ap_message_t *message)
target_enb = mme_enb_find_by_enb_id(target_enb_id);
if (target_enb == NULL)
{
d_warn("Cannot find target eNB-id[%d] in Handover-Required",
d_warn("Handover required : cannot find target eNB-id[%d]",
target_enb_id);
return;
}