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service request procedure updated

This commit is contained in:
Sukchan Lee 2017-09-11 14:18:18 +09:00
parent 3b418ca8f9
commit 8490a148de
2 changed files with 61 additions and 24 deletions
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83
src/mme/emm_handler.c
View File

@ -38,11 +38,23 @@ void emm_handle_attach_request(
d_assert(esm_message_container, return, "Null param");
d_assert(esm_message_container->length, return, "Null param");
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32, mme_ue->kenb);
/*
* ATTACH_REQUEST
* Clear EBI generator
* Clear Paging Timer and Message
* Update KeNB
*
* TAU_REQUEST
* Clear Paging Timer and Message
*
* SERVICE_REQUEST
* Clear Paging Timer and Message
* Update KeNB
*/
CLEAR_EPS_BEARER_ID(mme_ue);
CLEAR_PAGING_INFO(mme_ue);
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32, mme_ue->kenb);
/* Set EPS Attach Type */
memcpy(&mme_ue->nas_eps.attach, eps_attach_type,
@ -127,7 +139,6 @@ void emm_handle_attach_request(
if (!MME_UE_HAVE_IMSI(mme_ue))
{
/* Unknown GUTI */
FSM_TRAN(&mme_ue->sm, &emm_state_identity);
}
else
@ -373,24 +384,35 @@ void emm_handle_service_request(
d_assert(mme_ue, return, "Null param");
/*
* ATTACH_REQUEST
* Clear EBI generator
* Clear Paging Timer and Message
* Update KeNB
*
* TAU_REQUEST
* Clear Paging Timer and Message
*
* SERVICE_REQUEST
* Clear Paging Timer and Message
* Update KeNB
*/
CLEAR_PAGING_INFO(mme_ue);
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32, mme_ue->kenb);
/* Set EPS Update Type */
mme_ue->nas_eps.type = MME_UE_EPS_UPDATE_TYPE;
if (!MME_UE_HAVE_IMSI(mme_ue))
{
/* Unknown UE. Send Service_reject to force UE to attach
*
* FIXME : how about FSM_TRAN(&mme_ue->sm, emm_state_identity);
*/
nas_send_service_reject(mme_ue,
EMM_CAUSE_UE_IDENTITY_CANNOT_BE_DERIVED_BY_THE_NETWORK);
FSM_TRAN(&mme_ue->sm, &emm_state_identity);
}
else
{
CLEAR_PAGING_INFO(mme_ue);
/* Update Kenb */
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
{
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32, mme_ue->kenb);
/* Send Initial Context Setup Request */
rv = s1ap_send_initial_context_setup_request(mme_ue);
d_assert(rv == CORE_OK, return, "s1ap send error");
}
@ -398,16 +420,17 @@ void emm_handle_service_request(
{
if (MME_HAVE_SGW_S11_PATH(mme_ue))
{
rv = mme_gtp_send_delete_all_sessions(mme_ue);
d_assert(rv == CORE_OK, return,
"mme_gtp_send_delete_all_sessions failed");
/* Re-authentication */
mme_s6a_send_air(mme_ue);
FSM_TRAN(&mme_ue->sm, &emm_state_authentication);
}
else
{
mme_s6a_send_air(mme_ue);
/* Send Service Reject */
nas_send_service_reject(mme_ue,
EMM_CAUSE_UE_IDENTITY_CANNOT_BE_DERIVED_BY_THE_NETWORK);
FSM_TRAN(&mme_ue->sm, &emm_state_detached);
}
FSM_TRAN(&mme_ue->sm, &emm_state_authentication);
}
}
}
@ -435,9 +458,22 @@ void emm_handle_tau_request(
enb_ue = mme_ue->enb_ue;
d_assert(enb_ue, return, "Null param");
/*
* ATTACH_REQUEST
* Clear EBI generator
* Clear Paging Timer and Message
* Update KeNB
*
* TAU_REQUEST
* Clear Paging Timer and Message
*
* SERVICE_REQUEST
* Clear Paging Timer and Message
* Update KeNB
*/
CLEAR_PAGING_INFO(mme_ue);
/* Set EPS Attach Type */
/* Set EPS Update Type */
memcpy(&mme_ue->nas_eps.update, eps_update_type,
sizeof(nas_eps_update_type_t));
mme_ue->nas_eps.type = MME_UE_EPS_UPDATE_TYPE;
@ -523,7 +559,7 @@ void emm_handle_tau_request(
{
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
{
/* Send TAU accept */
/* Send TAU Accept */
rv = nas_send_tau_accept(mme_ue);
d_assert(rv == CORE_OK, return, "nas_send_tau_accept failed");
}
@ -531,6 +567,7 @@ void emm_handle_tau_request(
{
if (MME_HAVE_SGW_S11_PATH(mme_ue))
{
/* Re-authentication */
mme_s6a_send_air(mme_ue);
FSM_TRAN(&mme_ue->sm, &emm_state_authentication);
}

2
src/mme/nas_path.c
View File

@ -362,7 +362,7 @@ status_t nas_send_service_reject(mme_ue_t *mme_ue, nas_emm_cause_t emm_cause)
enb_ue = mme_ue->enb_ue;
d_assert(enb_ue, return CORE_ERROR, "Null param");
/* Build TAU reject */
/* Build Service Reject */
if (emm_build_service_reject(&emmbuf, emm_cause, mme_ue) != CORE_OK)
{
d_error("emm_build_service_reject error");