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- Update Kenb when required(after NAS SMC and after Attach req if 

security_ctx avilable)
- attach & detach & attach : Passed
- attach & idel & ServiceRequest : Passed
This commit is contained in:
James Park 2017-08-01 15:17:12 -07:00
parent 67003aef5a
commit 60166055f6
3 changed files with 72 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
src/mme/emm_handler.c
View File

@ -128,7 +128,35 @@ void emm_handle_attach_request(
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
{
emm_handle_attach_accept(mme_ue);
/* Update Kenb */
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32, mme_ue->kenb);
/* FIXME :
* Need to refine the code to start from ESM_Info_req.
* Call esm_handle_s6a_update_location(bearer) here
* or send event ?
*/
{
mme_sess_t *sess = mme_sess_first(mme_ue);
while(sess)
{
mme_bearer_t *bearer = mme_bearer_first(sess);
while(bearer)
{
event_t e;
event_set(&e, MME_EVT_ESM_BEARER_FROM_S6A);
event_set_param1(&e, (c_uintptr_t)bearer->index);
event_set_param2(&e,
(c_uintptr_t)S6A_CMD_UPDATE_LOCATION);
mme_event_send(&e);
bearer = mme_bearer_next(bearer);
}
sess = mme_sess_next(sess);
}
}
}
else
{
@ -168,7 +196,36 @@ void emm_handle_attach_request(
/* Known GUTI */
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
{
emm_handle_attach_accept(mme_ue);
/* Update Kenb */
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32,
mme_ue->kenb);
/* FIXME :
* Need to refine the code to start from ESM_Info_req.
* Call esm_handle_s6a_update_location(bearer) here
* or send event ?
*/
{
mme_sess_t *sess = mme_sess_first(mme_ue);
while(sess)
{
mme_bearer_t *bearer = mme_bearer_first(sess);
while(bearer)
{
event_t e;
event_set(&e, MME_EVT_ESM_BEARER_FROM_S6A);
event_set_param1(&e, (c_uintptr_t)bearer->index);
event_set_param2(&e,
(c_uintptr_t)S6A_CMD_UPDATE_LOCATION);
mme_event_send(&e);
bearer = mme_bearer_next(bearer);
}
sess = mme_sess_next(sess);
}
}
}
else
{
@ -404,6 +461,7 @@ void emm_handle_authentication_response(mme_ue_t *mme_ue,
mme_ue->kasme, mme_ue->knas_enc);
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32, mme_ue->kenb);
d_info("[NAS] Security mode command : UE[%s] <-- EMM",
mme_ue->imsi_bcd);

7
src/mme/emm_sm.c
View File

@ -8,6 +8,7 @@
#include "emm_handler.h"
#include "emm_build.h"
#include "mme_s6a_handler.h"
#include "mme_kdf.h"
void emm_state_initial(fsm_t *s, event_t *e)
{
@ -161,6 +162,12 @@ void emm_state_operational(fsm_t *s, event_t *e)
{
d_info("[NAS] Security mode complete : UE[%s] --> EMM",
mme_ue->imsi_bcd);
/* Update Kenb */
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32,
mme_ue->kenb);
mme_s6a_send_ulr(mme_ue);
break;
}

5
src/mme/nas_security.c
View File

@ -4,6 +4,7 @@
#include "nas_message.h"
#include "nas_security.h"
#include "mme_kdf.h"
status_t nas_security_encode(
pkbuf_t **pkbuf, mme_ue_t *mme_ue, nas_message_t *message)
@ -154,6 +155,10 @@ status_t nas_security_decode(mme_ue_t *mme_ue,
mme_ue->mac_failed = 1;
}
/* Update Kenb */
if (SECURITY_CONTEXT_IS_VALID(mme_ue))
mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32, mme_ue->kenb);
return CORE_OK;
}