2017-03-27 10:32:24 +00:00
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#define TRACE_MODULE _esm_handler
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#include "core_debug.h"
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#include "nas_message.h"
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2017-04-11 06:13:30 +00:00
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#include "mme_context.h"
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2017-04-04 01:49:19 +00:00
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#include "mme_event.h"
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2017-04-13 10:58:58 +00:00
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#include "esm_build.h"
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#include "s1ap_build.h"
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#include "s1ap_path.h"
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2017-08-10 07:47:18 +00:00
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#include "nas_path.h"
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2017-09-05 04:15:04 +00:00
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#include "mme_s11_build.h"
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2017-04-08 02:38:09 +00:00
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2017-08-26 09:52:06 +00:00
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void esm_handle_pdn_connectivity_request(mme_sess_t *sess,
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2017-04-08 02:38:09 +00:00
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nas_pdn_connectivity_request_t *pdn_connectivity_request)
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{
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2017-09-06 15:37:16 +00:00
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mme_ue_t *mme_ue = NULL;
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2017-08-26 09:52:06 +00:00
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d_assert(sess, return, "Null param");
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2017-09-06 15:37:16 +00:00
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mme_ue = sess->mme_ue;
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d_assert(mme_ue, return, "Null param");
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if (pdn_connectivity_request->presencemask &
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NAS_PDN_CONNECTIVITY_REQUEST_ACCESS_POINT_NAME_PRESENT)
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{
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sess->pdn = mme_pdn_find_by_apn(mme_ue,
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pdn_connectivity_request->access_point_name.apn);
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d_assert(sess->pdn, return, "No PDN Context[APN:%s])",
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pdn_connectivity_request->access_point_name.apn);
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}
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2017-08-26 09:52:06 +00:00
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2017-04-14 02:51:27 +00:00
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if (pdn_connectivity_request->presencemask &
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2017-04-14 10:18:08 +00:00
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NAS_PDN_CONNECTIVITY_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT)
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2017-04-14 02:51:27 +00:00
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{
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nas_protocol_configuration_options_t *protocol_configuration_options =
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&pdn_connectivity_request->protocol_configuration_options;
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2017-09-06 11:29:55 +00:00
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NAS_STORE_DATA(&sess->ue_pco, protocol_configuration_options);
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2017-04-14 02:51:27 +00:00
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}
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2017-04-08 02:38:09 +00:00
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}
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2017-04-11 06:07:46 +00:00
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2017-08-26 09:52:06 +00:00
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void esm_handle_information_response(mme_sess_t *sess,
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2017-04-11 06:07:46 +00:00
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nas_esm_information_response_t *esm_information_response)
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{
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2017-04-28 07:11:45 +00:00
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mme_ue_t *mme_ue = NULL;
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2017-04-11 06:13:30 +00:00
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2017-08-11 06:21:03 +00:00
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d_assert(sess, return, "Null param");
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2017-08-26 09:52:06 +00:00
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mme_ue = sess->mme_ue;
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d_assert(mme_ue, return, "Null param");
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2017-04-12 04:45:57 +00:00
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2017-04-11 12:38:24 +00:00
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if (esm_information_response->presencemask &
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NAS_ESM_INFORMATION_RESPONSE_ACCESS_POINT_NAME_PRESENT)
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{
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2017-08-11 11:25:52 +00:00
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sess->pdn = mme_pdn_find_by_apn(mme_ue,
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2017-04-11 12:38:24 +00:00
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esm_information_response->access_point_name.apn);
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2017-08-11 11:25:52 +00:00
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d_assert(sess->pdn, return, "No PDN Context[APN:%s])",
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2017-04-11 12:38:24 +00:00
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esm_information_response->access_point_name.apn);
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}
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2017-04-11 14:25:33 +00:00
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if (esm_information_response->presencemask &
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NAS_ESM_INFORMATION_RESPONSE_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT)
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{
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nas_protocol_configuration_options_t *protocol_configuration_options =
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&esm_information_response->protocol_configuration_options;
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2017-09-06 11:29:55 +00:00
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NAS_STORE_DATA(&sess->ue_pco, protocol_configuration_options);
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2017-04-11 14:25:33 +00:00
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}
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2017-04-11 06:07:46 +00:00
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}
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2017-09-04 15:04:05 +00:00
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2017-09-05 04:15:04 +00:00
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void esm_handle_activate_default_bearer_accept(mme_bearer_t *bearer)
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{
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status_t rv;
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gtp_header_t h;
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gtp_xact_t *xact = NULL;
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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 *dedicated_bearer = NULL;
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pkbuf_t *pkbuf = NULL;
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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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if (MME_HAVE_ENB_S1U_PATH(bearer))
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{
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memset(&h, 0, sizeof(gtp_header_t));
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h.type = GTP_MODIFY_BEARER_REQUEST_TYPE;
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h.teid = mme_ue->sgw_s11_teid;
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rv = mme_s11_build_modify_bearer_request(&pkbuf, h.type, bearer);
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d_assert(rv == CORE_OK, return, "S11 build error");
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xact = gtp_xact_local_create(sess->sgw, &h, pkbuf);
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d_assert(xact, return, "Null param");
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rv = gtp_xact_commit(xact);
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d_assert(rv == CORE_OK, return, "xact_commit error");
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2017-09-06 15:37:16 +00:00
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dedicated_bearer = mme_bearer_next(bearer);
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while(dedicated_bearer)
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2017-09-05 04:15:04 +00:00
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{
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2017-09-05 05:52:19 +00:00
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enb_ue_t *enb_ue = NULL;
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pkbuf_t *esmbuf = NULL, *s1apbuf = NULL;
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enb_ue = mme_ue->enb_ue;
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d_assert(enb_ue, return, "Null param");
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rv = esm_build_activate_dedicated_bearer_context(
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&esmbuf, dedicated_bearer);
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d_assert(rv == CORE_OK && esmbuf, return, "esm build error");
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d_trace(3, "[NAS] Activate dedicated bearer context request : "
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"EMM <-- ESM\n");
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rv = s1ap_build_e_rab_setup_request(
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&s1apbuf, dedicated_bearer, esmbuf);
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d_assert(rv == CORE_OK && s1apbuf,
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pkbuf_free(esmbuf); return, "s1ap build error");
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d_assert(nas_send_to_enb(enb_ue, s1apbuf) == CORE_OK,,);
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2017-09-06 15:37:16 +00:00
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dedicated_bearer = mme_bearer_next(dedicated_bearer);
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2017-09-05 04:15:04 +00:00
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}
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}
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}
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void esm_handle_activate_dedicated_bearer_accept(mme_bearer_t *bearer)
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{
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status_t rv;
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gtp_header_t h;
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gtp_xact_t *xact = NULL;
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mme_ue_t *mme_ue = NULL;
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mme_sess_t *sess = NULL;
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pkbuf_t *pkbuf = NULL;
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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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xact = bearer->xact;
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d_assert(xact, return, "Null param");
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if (MME_HAVE_ENB_S1U_PATH(bearer))
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{
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memset(&h, 0, sizeof(gtp_header_t));
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h.type = GTP_CREATE_BEARER_RESPONSE_TYPE;
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h.teid = mme_ue->sgw_s11_teid;
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rv = mme_s11_build_create_bearer_response(&pkbuf, h.type, bearer);
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d_assert(rv == CORE_OK, return, "S11 build error");
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rv = gtp_xact_update_tx(xact, &h, pkbuf);
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d_assert(xact, return, "Null param");
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rv = gtp_xact_commit(xact);
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d_assert(rv == CORE_OK, return, "xact_commit error");
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}
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}
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