2017-07-31 13:35:25 +00:00
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#define TRACE_MODULE _esm_sm
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2017-03-05 07:49:57 +00:00
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#include "core_debug.h"
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2017-03-26 05:57:33 +00:00
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#include "nas_message.h"
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2017-03-26 06:34:34 +00:00
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2017-04-04 01:49:19 +00:00
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#include "mme_event.h"
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2017-08-25 11:31:08 +00:00
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#include "mme_fd_path.h"
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2017-08-10 07:47:18 +00:00
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#include "emm_handler.h"
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2017-04-11 03:57:54 +00:00
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#include "esm_build.h"
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2017-08-10 07:47:18 +00:00
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#include "esm_handler.h"
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2017-08-10 08:02:07 +00:00
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#include "mme_s11_handler.h"
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2017-09-04 13:00:51 +00:00
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#include "nas_path.h"
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2017-09-07 10:44:08 +00:00
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#include "mme_gtp_path.h"
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2017-03-06 00:00:37 +00:00
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2017-09-05 03:37:27 +00:00
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static void esm_state_pdn_connectivity_request(
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fsm_t *s, event_t *e, mme_ue_t *mme_ue, mme_sess_t *sess,
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mme_bearer_t *bearer, nas_message_t *message);
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2017-04-11 00:32:34 +00:00
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void esm_state_initial(fsm_t *s, event_t *e)
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2017-03-05 07:49:57 +00:00
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{
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d_assert(s, return, "Null param");
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2017-08-02 10:33:57 +00:00
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mme_sm_trace(3, e);
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2017-03-05 07:49:57 +00:00
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2017-09-05 03:37:27 +00:00
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FSM_TRAN(s, &esm_state_inactive);
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2017-03-05 07:49:57 +00:00
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}
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2017-04-11 00:32:34 +00:00
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void esm_state_final(fsm_t *s, event_t *e)
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2017-03-05 07:49:57 +00:00
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{
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d_assert(s, return, "Null param");
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2017-08-02 10:33:57 +00:00
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mme_sm_trace(3, e);
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2017-03-05 07:49:57 +00:00
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}
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2017-09-05 03:37:27 +00:00
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void esm_state_inactive(fsm_t *s, event_t *e)
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2017-03-05 07:49:57 +00:00
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{
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2017-09-03 15:06:39 +00:00
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mme_ue_t *mme_ue = NULL;
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2017-09-04 13:00:51 +00:00
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mme_sess_t *sess = NULL;
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mme_bearer_t *bearer = NULL;
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2017-09-03 15:06:39 +00:00
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2017-03-05 07:49:57 +00:00
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d_assert(s, return, "Null param");
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d_assert(e, return, "Null param");
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2017-08-02 10:33:57 +00:00
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mme_sm_trace(3, e);
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2017-03-05 07:49:57 +00:00
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2017-09-04 13:00:51 +00:00
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bearer = mme_bearer_find(event_get_param1(e));
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d_assert(bearer, return, "Null param");
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sess = bearer->sess;
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2017-09-03 15:06:39 +00:00
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d_assert(sess, return, "Null param");
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mme_ue = sess->mme_ue;
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d_assert(mme_ue, return, "Null param");
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2017-03-05 07:49:57 +00:00
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switch (event_get(e))
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{
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case FSM_ENTRY_SIG:
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{
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break;
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}
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case FSM_EXIT_SIG:
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{
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break;
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}
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2017-08-25 15:25:55 +00:00
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case MME_EVT_ESM_MESSAGE:
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2017-03-05 07:49:57 +00:00
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{
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2017-09-03 15:06:39 +00:00
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nas_message_t *message = (nas_message_t *)event_get_param3(e);
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2017-04-09 05:57:07 +00:00
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d_assert(message, break, "Null param");
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2017-03-05 08:36:16 +00:00
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2017-04-09 05:57:07 +00:00
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switch(message->esm.h.message_type)
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2017-03-05 09:09:34 +00:00
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{
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2017-03-27 10:32:24 +00:00
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case NAS_PDN_CONNECTIVITY_REQUEST:
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2017-03-05 09:09:34 +00:00
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{
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2017-09-05 03:37:27 +00:00
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esm_state_pdn_connectivity_request(s, e,
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mme_ue, sess, bearer, message);
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2017-03-06 12:45:41 +00:00
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break;
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}
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2017-04-13 14:30:56 +00:00
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case NAS_ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_ACCEPT:
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{
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2017-09-05 03:37:27 +00:00
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d_trace(3, "[NAS] Activate default EPS bearer "
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2017-08-02 06:11:08 +00:00
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"context accept : UE[%s] --> ESM[%d]\n",
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2017-09-07 12:28:12 +00:00
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mme_ue->imsi_bcd, bearer->ebi);
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2017-09-05 04:15:04 +00:00
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esm_handle_activate_default_bearer_accept(bearer);
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2017-09-05 03:37:27 +00:00
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FSM_TRAN(s, esm_state_active);
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break;
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}
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case NAS_ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_ACCEPT:
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{
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2017-09-07 10:44:08 +00:00
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status_t rv;
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2017-09-05 03:37:27 +00:00
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d_trace(3, "[NAS] Activate dedicated EPS bearer "
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"context accept : UE[%s] --> ESM[%d]\n",
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2017-09-07 12:28:12 +00:00
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mme_ue->imsi_bcd, bearer->ebi);
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2017-09-07 10:44:08 +00:00
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rv = mme_gtp_send_create_bearer_response(bearer);
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d_assert(rv == CORE_OK, return,
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"mme_gtp_send_create_bearer_response failed");
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2017-09-05 03:37:27 +00:00
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FSM_TRAN(s, esm_state_active);
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2017-04-13 14:30:56 +00:00
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break;
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}
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2017-03-05 09:09:34 +00:00
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default:
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{
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2017-04-09 05:57:07 +00:00
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d_warn("Not implemented(type:%d)",
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message->esm.h.message_type);
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2017-03-05 09:09:34 +00:00
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break;
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}
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}
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2017-03-05 07:49:57 +00:00
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break;
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}
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default:
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{
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2017-03-24 09:47:05 +00:00
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d_error("Unknown event %s", mme_event_get_name(e));
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2017-03-05 07:49:57 +00:00
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break;
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}
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}
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}
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2017-09-06 15:37:16 +00:00
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void esm_state_information(fsm_t *s, event_t *e)
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{
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mme_ue_t *mme_ue = NULL;
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mme_sess_t *sess = NULL;
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mme_bearer_t *bearer = NULL;
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d_assert(s, return, "Null param");
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d_assert(e, return, "Null param");
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mme_sm_trace(3, e);
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bearer = mme_bearer_find(event_get_param1(e));
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d_assert(bearer, return, "Null param");
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sess = bearer->sess;
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d_assert(sess, return, "Null param");
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mme_ue = sess->mme_ue;
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d_assert(mme_ue, return, "Null param");
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switch (event_get(e))
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{
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case FSM_ENTRY_SIG:
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{
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status_t rv;
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pkbuf_t *esmbuf = NULL;
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rv = esm_build_information_request(&esmbuf, bearer);
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d_assert(rv == CORE_OK && esmbuf, return,
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"esm_build failed");
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d_assert(nas_send_to_downlink_nas_transport(
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mme_ue, esmbuf) == CORE_OK,,);
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break;
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}
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case FSM_EXIT_SIG:
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{
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break;
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}
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case MME_EVT_ESM_MESSAGE:
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{
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nas_message_t *message = (nas_message_t *)event_get_param3(e);
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d_assert(message, break, "Null param");
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switch(message->esm.h.message_type)
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{
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case NAS_ESM_INFORMATION_RESPONSE:
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{
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d_trace(3, "[NAS] ESM information response : "
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"UE[%s] --> ESM[%d]\n",
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2017-09-07 12:28:12 +00:00
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mme_ue->imsi_bcd, sess->pti);
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2017-09-06 15:37:16 +00:00
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esm_handle_information_response(
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sess, &message->esm.esm_information_response);
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mme_s11_handle_create_session_request(sess);
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FSM_TRAN(s, esm_state_inactive);
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break;
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}
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default:
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{
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d_warn("Not implemented(type:%d)",
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message->esm.h.message_type);
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break;
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}
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}
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break;
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}
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default:
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{
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d_error("Unknown event %s", mme_event_get_name(e));
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break;
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}
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}
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}
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2017-09-05 03:37:27 +00:00
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void esm_state_active(fsm_t *s, event_t *e)
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2017-03-05 07:49:57 +00:00
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{
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2017-09-07 13:22:42 +00:00
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status_t rv;
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2017-09-05 03:37:27 +00:00
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mme_ue_t *mme_ue = NULL;
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mme_sess_t *sess = NULL;
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mme_bearer_t *bearer = NULL;
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2017-03-05 07:49:57 +00:00
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d_assert(s, return, "Null param");
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d_assert(e, return, "Null param");
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2017-08-02 10:33:57 +00:00
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mme_sm_trace(3, e);
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2017-03-05 07:49:57 +00:00
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2017-09-05 03:37:27 +00:00
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bearer = mme_bearer_find(event_get_param1(e));
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d_assert(bearer, return, "Null param");
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sess = bearer->sess;
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d_assert(sess, return, "Null param");
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mme_ue = sess->mme_ue;
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d_assert(mme_ue, return, "Null param");
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2017-03-05 07:49:57 +00:00
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switch (event_get(e))
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{
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case FSM_ENTRY_SIG:
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{
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break;
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}
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case FSM_EXIT_SIG:
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{
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break;
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}
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2017-09-05 03:37:27 +00:00
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case MME_EVT_ESM_MESSAGE:
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{
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nas_message_t *message = (nas_message_t *)event_get_param3(e);
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d_assert(message, break, "Null param");
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switch(message->esm.h.message_type)
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{
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case NAS_PDN_CONNECTIVITY_REQUEST:
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{
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esm_state_pdn_connectivity_request(s, e,
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mme_ue, sess, bearer, message);
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FSM_TRAN(s, esm_state_inactive);
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break;
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}
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2017-09-07 13:22:42 +00:00
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case NAS_PDN_DISCONNECT_REQUEST:
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{
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if (MME_HAVE_SGW_S1U_PATH(sess))
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{
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rv = mme_gtp_send_delete_session_request(sess);
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d_assert(rv == CORE_OK, return,
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"mme_gtp_send_delete_session_request error");
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}
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else
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{
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mme_sess_remove(sess);
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}
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FSM_TRAN(s, esm_state_disconnect);
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break;
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}
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default:
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{
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d_warn("Not implemented(type:%d)",
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message->esm.h.message_type);
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break;
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}
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}
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break;
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}
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default:
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{
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d_error("Unknown event %s", mme_event_get_name(e));
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break;
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}
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}
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}
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void esm_state_disconnect(fsm_t *s, event_t *e)
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{
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mme_ue_t *mme_ue = NULL;
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mme_sess_t *sess = NULL;
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mme_bearer_t *bearer = NULL;
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d_assert(s, return, "Null param");
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d_assert(e, return, "Null param");
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mme_sm_trace(3, e);
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bearer = mme_bearer_find(event_get_param1(e));
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d_assert(bearer, return, "Null param");
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sess = bearer->sess;
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d_assert(sess, return, "Null param");
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mme_ue = sess->mme_ue;
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d_assert(mme_ue, return, "Null param");
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switch (event_get(e))
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{
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case FSM_ENTRY_SIG:
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{
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break;
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}
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case FSM_EXIT_SIG:
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{
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break;
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}
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case MME_EVT_ESM_MESSAGE:
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{
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nas_message_t *message = (nas_message_t *)event_get_param3(e);
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d_assert(message, break, "Null param");
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switch(message->esm.h.message_type)
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{
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2017-09-05 03:37:27 +00:00
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default:
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{
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d_warn("Not implemented(type:%d)",
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message->esm.h.message_type);
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break;
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}
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}
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break;
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}
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|
2017-03-05 07:49:57 +00:00
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default:
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{
|
2017-03-24 09:47:05 +00:00
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d_error("Unknown event %s", mme_event_get_name(e));
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2017-03-05 07:49:57 +00:00
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break;
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}
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}
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}
|
2017-09-05 03:37:27 +00:00
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2017-09-06 15:37:16 +00:00
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void esm_state_session_exception(fsm_t *s, event_t *e)
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{
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switch (event_get(e))
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{
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case FSM_ENTRY_SIG:
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{
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|
|
|
break;
|
|
|
|
}
|
|
|
|
case FSM_EXIT_SIG:
|
|
|
|
{
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
{
|
|
|
|
d_error("Unknown event %s", mme_event_get_name(e));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void esm_state_bearer_exception(fsm_t *s, event_t *e)
|
|
|
|
{
|
|
|
|
switch (event_get(e))
|
|
|
|
{
|
|
|
|
case FSM_ENTRY_SIG:
|
|
|
|
{
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case FSM_EXIT_SIG:
|
|
|
|
{
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
{
|
|
|
|
d_error("Unknown event %s", mme_event_get_name(e));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-09-05 03:37:27 +00:00
|
|
|
static void esm_state_pdn_connectivity_request(
|
|
|
|
fsm_t *s, event_t *e, mme_ue_t *mme_ue, mme_sess_t *sess,
|
|
|
|
mme_bearer_t *bearer, nas_message_t *message)
|
|
|
|
{
|
|
|
|
d_assert(s, return, "Null param");
|
|
|
|
d_assert(e, return, "Null param");
|
|
|
|
d_assert(mme_ue, return, "Null param");
|
|
|
|
d_assert(sess, return, "Null param");
|
|
|
|
d_assert(bearer, return, "Null param");
|
|
|
|
d_assert(message, return, "Null param");
|
|
|
|
|
|
|
|
d_trace(3, "[NAS] PDN connectivity request : UE[%s] --> ESM[%d]\n",
|
2017-09-07 12:28:12 +00:00
|
|
|
mme_ue->imsi_bcd, sess->pti);
|
2017-09-05 03:37:27 +00:00
|
|
|
|
|
|
|
d_assert(MME_UE_HAVE_IMSI(mme_ue), return,
|
|
|
|
"No IMSI in PDN_CPNNECTIVITY_REQUEST");
|
|
|
|
d_assert(SECURITY_CONTEXT_IS_VALID(mme_ue), return,
|
|
|
|
"No Security Context in PDN_CPNNECTIVITY_REQUEST");
|
|
|
|
|
|
|
|
esm_handle_pdn_connectivity_request(
|
|
|
|
sess, &message->esm.pdn_connectivity_request);
|
|
|
|
|
|
|
|
if (MME_UE_HAVE_APN(mme_ue))
|
|
|
|
{
|
2017-09-06 15:37:16 +00:00
|
|
|
if (FSM_CHECK(&mme_ue->sm, emm_state_attached))
|
2017-09-05 03:37:27 +00:00
|
|
|
{
|
2017-09-06 15:37:16 +00:00
|
|
|
mme_s11_handle_create_session_request(sess);
|
2017-09-05 03:37:27 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2017-09-06 15:37:16 +00:00
|
|
|
if (MME_HAVE_SGW_S11_PATH(mme_ue))
|
|
|
|
{
|
2017-09-07 06:56:31 +00:00
|
|
|
status_t rv;
|
|
|
|
rv = nas_send_attach_accept(mme_ue);
|
|
|
|
d_assert(rv == CORE_OK, return,
|
|
|
|
"nas_send_attach_accept failed");
|
2017-09-06 15:37:16 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
mme_s11_handle_create_session_request(sess);
|
|
|
|
}
|
2017-09-05 03:37:27 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2017-09-06 15:37:16 +00:00
|
|
|
FSM_TRAN(s, esm_state_information);
|
2017-09-05 03:37:27 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|