2019-06-11 09:28:25 +00:00
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#include "gtp/gtp-types.h"
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#include "gtp/gtp-conv.h"
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#include "gtp/gtp-xact.h"
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2017-04-12 12:44:18 +00:00
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#include "mme_event.h"
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2017-11-30 11:13:15 +00:00
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#include "mme_sm.h"
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2017-04-12 12:44:18 +00:00
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#include "mme_context.h"
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2017-08-09 15:41:09 +00:00
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2019-06-01 09:52:38 +00:00
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#include "s1ap-path.h"
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2017-08-31 02:05:00 +00:00
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#include "mme_gtp_path.h"
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2017-09-05 05:52:19 +00:00
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#include "nas_path.h"
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2017-09-10 14:03:24 +00:00
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#include "mme_fd_path.h"
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2017-08-10 08:02:07 +00:00
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2017-09-10 14:03:24 +00:00
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#include "mme_s11_build.h"
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#include "mme_s11_handler.h"
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void mme_s11_handle_create_session_response(
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gtp_xact_t *xact, mme_ue_t *mme_ue, gtp_create_session_response_t *rsp)
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2017-04-12 12:44:18 +00:00
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{
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2019-04-27 14:54:30 +00:00
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int rv;
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2017-04-12 12:44:18 +00:00
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gtp_f_teid_t *sgw_s11_teid = NULL;
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gtp_f_teid_t *sgw_s1u_teid = NULL;
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2017-09-10 14:03:24 +00:00
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mme_bearer_t *bearer = NULL;
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2017-09-01 12:35:45 +00:00
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mme_sess_t *sess = NULL;
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2017-04-13 03:21:47 +00:00
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pdn_t *pdn = NULL;
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2017-04-12 12:44:18 +00:00
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2019-04-27 14:54:30 +00:00
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ogs_assert(xact);
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ogs_assert(mme_ue);
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ogs_assert(rsp);
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2017-04-12 12:44:18 +00:00
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2019-04-27 14:54:30 +00:00
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ogs_debug("[MME] Create Session Response");
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2018-01-22 15:00:57 +00:00
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2017-04-12 12:44:18 +00:00
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if (rsp->sender_f_teid_for_control_plane.presence == 0)
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{
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2019-04-27 14:54:30 +00:00
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ogs_error("No S11 TEID");
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2017-04-12 12:44:18 +00:00
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return;
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}
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2017-04-13 03:21:47 +00:00
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if (rsp->pdn_address_allocation.presence == 0)
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{
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2019-04-27 14:54:30 +00:00
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ogs_error("No PDN Address Allocation");
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2017-04-13 03:21:47 +00:00
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return;
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}
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2017-04-12 12:44:18 +00:00
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if (rsp->bearer_contexts_created.s1_u_enodeb_f_teid.presence == 0)
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{
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2019-04-27 14:54:30 +00:00
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ogs_error("No S1U TEID");
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2017-04-12 12:44:18 +00:00
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return;
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}
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2017-09-10 14:03:24 +00:00
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if (rsp->bearer_contexts_created.presence == 0)
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{
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2019-04-27 14:54:30 +00:00
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ogs_error("No Bearer");
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2017-09-10 14:03:24 +00:00
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return;
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}
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if (rsp->bearer_contexts_created. eps_bearer_id.presence == 0)
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{
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2019-04-27 14:54:30 +00:00
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ogs_error("No EPS Bearer ID");
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2017-09-10 14:03:24 +00:00
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return;
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}
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2017-04-12 12:44:18 +00:00
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2019-04-27 14:54:30 +00:00
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ogs_assert(mme_ue);
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2017-09-10 14:03:24 +00:00
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bearer = mme_bearer_find_by_ue_ebi(mme_ue,
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rsp->bearer_contexts_created.eps_bearer_id.u8);
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2019-04-27 14:54:30 +00:00
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ogs_assert(bearer);
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2017-09-02 01:14:40 +00:00
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sess = bearer->sess;
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2019-04-27 14:54:30 +00:00
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ogs_assert(sess);
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2017-09-02 01:14:40 +00:00
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pdn = sess->pdn;
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2019-04-27 14:54:30 +00:00
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ogs_assert(pdn);
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2017-09-02 01:14:40 +00:00
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2017-09-04 13:00:51 +00:00
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/* Control Plane(UL) : SGW-S11 */
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2017-04-12 12:44:18 +00:00
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sgw_s11_teid = rsp->sender_f_teid_for_control_plane.data;
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2017-09-01 12:35:45 +00:00
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mme_ue->sgw_s11_teid = ntohl(sgw_s11_teid->teid);
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2017-04-12 12:44:18 +00:00
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2017-04-13 03:21:47 +00:00
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memcpy(&pdn->paa, rsp->pdn_address_allocation.data,
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rsp->pdn_address_allocation.len);
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2017-09-04 13:00:51 +00:00
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/* PCO */
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2017-04-13 03:21:47 +00:00
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if (rsp->protocol_configuration_options.presence)
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{
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2017-09-06 11:29:55 +00:00
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TLV_STORE_DATA(&sess->pgw_pco, &rsp->protocol_configuration_options);
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2017-04-13 03:21:47 +00:00
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}
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2017-09-04 13:00:51 +00:00
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/* Data Plane(UL) : SGW-S1U */
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2017-04-12 12:44:18 +00:00
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sgw_s1u_teid = rsp->bearer_contexts_created.s1_u_enodeb_f_teid.data;
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2017-04-13 10:15:53 +00:00
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bearer->sgw_s1u_teid = ntohl(sgw_s1u_teid->teid);
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2018-02-01 05:07:01 +00:00
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2019-04-27 14:54:30 +00:00
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ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
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2018-02-01 05:07:01 +00:00
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mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
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2019-04-27 14:54:30 +00:00
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ogs_debug(" ENB_S1U_TEID[%d] SGW_S1U_TEID[%d]",
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2018-02-01 05:07:01 +00:00
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bearer->enb_s1u_teid, bearer->sgw_s1u_teid);
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2017-12-07 08:40:15 +00:00
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rv = gtp_f_teid_to_ip(sgw_s1u_teid, &bearer->sgw_s1u_ip);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2017-04-12 13:27:32 +00:00
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2017-08-31 05:03:00 +00:00
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rv = gtp_xact_commit(xact);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2017-09-10 14:03:24 +00:00
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2019-04-27 14:54:30 +00:00
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if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_initial_context_setup))
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2017-09-10 14:03:24 +00:00
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{
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rv = nas_send_attach_accept(mme_ue);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2017-09-10 14:03:24 +00:00
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}
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2019-04-27 14:54:30 +00:00
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else if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_registered))
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2017-09-10 14:03:24 +00:00
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{
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rv = nas_send_activate_default_bearer_context_request(bearer);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2017-09-10 14:03:24 +00:00
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}
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else
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2019-04-27 14:54:30 +00:00
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ogs_assert_if_reached();
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2017-04-12 12:44:18 +00:00
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}
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2017-04-13 16:26:50 +00:00
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2017-09-04 13:00:51 +00:00
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void mme_s11_handle_modify_bearer_response(
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gtp_xact_t *xact, mme_ue_t *mme_ue, gtp_modify_bearer_response_t *rsp)
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{
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2019-04-27 14:54:30 +00:00
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int rv;
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2017-09-18 10:30:03 +00:00
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enb_ue_t *source_ue = NULL, *target_ue = NULL;
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2017-09-04 13:00:51 +00:00
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2019-04-27 14:54:30 +00:00
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ogs_assert(mme_ue);
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ogs_assert(xact);
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ogs_assert(rsp);
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2017-09-04 13:00:51 +00:00
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2019-04-27 14:54:30 +00:00
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ogs_debug("[MME] Modify Bearer Response");
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ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
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2018-01-11 04:42:33 +00:00
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mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
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2017-09-04 13:00:51 +00:00
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rv = gtp_xact_commit(xact);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2017-09-11 15:49:15 +00:00
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2017-09-13 02:18:17 +00:00
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GTP_COUNTER_CHECK(mme_ue, GTP_COUNTER_MODIFY_BEARER_BY_PATH_SWITCH,
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rv = s1ap_send_path_switch_ack(mme_ue);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2017-09-13 02:18:17 +00:00
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);
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2017-09-14 02:12:02 +00:00
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GTP_COUNTER_CHECK(mme_ue, GTP_COUNTER_MODIFY_BEARER_BY_HANDOVER_NOTIFY,
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2017-09-18 10:30:03 +00:00
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target_ue = mme_ue->enb_ue;
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2019-04-27 14:54:30 +00:00
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ogs_assert(target_ue);
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2017-09-18 10:30:03 +00:00
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source_ue = target_ue->source_ue;
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2019-04-27 14:54:30 +00:00
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ogs_assert(source_ue);
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2017-09-18 10:30:03 +00:00
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2018-01-21 11:31:28 +00:00
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rv = s1ap_send_ue_context_release_command(source_ue,
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2018-03-05 14:01:07 +00:00
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S1AP_Cause_PR_radioNetwork,
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S1AP_CauseRadioNetwork_successful_handover,
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2019-04-27 14:54:30 +00:00
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S1AP_UE_CTX_REL_DELETE_INDIRECT_TUNNEL,
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ogs_time_from_msec(300));
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ogs_assert(rv == OGS_OK);
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2017-09-14 02:12:02 +00:00
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);
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2017-09-04 13:00:51 +00:00
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}
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2017-09-10 14:03:24 +00:00
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void mme_s11_handle_delete_session_response(
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gtp_xact_t *xact, mme_ue_t *mme_ue, gtp_delete_session_response_t *rsp)
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{
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2019-04-27 14:54:30 +00:00
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int rv;
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2017-09-10 14:03:24 +00:00
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mme_sess_t *sess = NULL;
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2019-04-27 14:54:30 +00:00
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ogs_assert(mme_ue);
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ogs_assert(xact);
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2017-09-10 14:03:24 +00:00
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sess = GTP_XACT_RETRIEVE_SESSION(xact);
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2019-04-27 14:54:30 +00:00
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ogs_assert(sess);
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ogs_assert(rsp);
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2017-09-10 14:03:24 +00:00
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2019-04-27 14:54:30 +00:00
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ogs_debug("[MME] Delete Session Response");
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2017-09-10 14:03:24 +00:00
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if (rsp->cause.presence == 0)
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{
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2019-04-27 14:54:30 +00:00
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ogs_error("No Cause");
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2018-01-30 12:57:19 +00:00
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goto cleanup;
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2017-09-10 14:03:24 +00:00
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}
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2019-04-27 14:54:30 +00:00
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ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
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2017-09-10 14:03:24 +00:00
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mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
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rv = gtp_xact_commit(xact);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2017-09-10 14:03:24 +00:00
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2019-04-27 14:54:30 +00:00
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if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_authentication))
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2017-09-10 14:03:24 +00:00
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{
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2018-01-30 12:57:19 +00:00
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if (mme_sess_count(mme_ue) == 1) /* Last Session */
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{
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2017-12-17 15:01:07 +00:00
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mme_s6a_send_air(mme_ue, NULL);
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2018-01-30 12:57:19 +00:00
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}
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2017-09-10 14:03:24 +00:00
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}
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2019-04-27 14:54:30 +00:00
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else if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_de_registered))
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2017-09-10 14:03:24 +00:00
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{
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2018-01-30 12:57:19 +00:00
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if (mme_sess_count(mme_ue) == 1) /* Last Session */
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{
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2017-09-10 14:03:24 +00:00
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rv = nas_send_detach_accept(mme_ue);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2018-01-30 12:57:19 +00:00
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}
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2017-09-10 14:03:24 +00:00
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}
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2019-04-27 14:54:30 +00:00
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else if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_registered))
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2017-09-10 14:03:24 +00:00
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{
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mme_bearer_t *bearer = mme_default_bearer_in_sess(sess);
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2019-04-27 14:54:30 +00:00
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ogs_assert(bearer);
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2017-09-10 14:03:24 +00:00
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2019-04-27 14:54:30 +00:00
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if (OGS_FSM_CHECK(&bearer->sm, esm_state_pdn_will_disconnect))
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2017-09-10 14:03:24 +00:00
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{
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rv = nas_send_deactivate_bearer_context_request(bearer);
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2019-04-27 14:54:30 +00:00
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ogs_assert(rv == OGS_OK);
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2018-01-30 12:57:19 +00:00
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/*
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2018-02-09 07:43:28 +00:00
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* mme_sess_remove() should not be called here.
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2018-01-30 12:57:19 +00:00
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*
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2018-02-09 07:43:28 +00:00
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* Session will be removed if Deactivate bearer context
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* accept is received */
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2018-02-09 07:26:55 +00:00
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CLEAR_SGW_S1U_PATH(sess);
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2018-01-30 12:57:19 +00:00
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return;
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2018-01-13 14:06:21 +00:00
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}
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2019-05-26 03:22:43 +00:00
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else if (OGS_FSM_CHECK(&bearer->sm, esm_state_active))
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{
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if (mme_sess_count(mme_ue) == 1) /* Last Session */
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{
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enb_ue_t *enb_ue = NULL;
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enb_ue = mme_ue->enb_ue;
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ogs_assert(enb_ue);
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rv = s1ap_send_ue_context_release_command(enb_ue,
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S1AP_Cause_PR_nas, S1AP_CauseNas_normal_release,
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S1AP_UE_CTX_REL_UE_CONTEXT_REMOVE, 0);
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ogs_assert(rv == OGS_OK);
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}
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}
|
2017-09-10 14:03:24 +00:00
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else
|
2019-04-27 14:54:30 +00:00
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ogs_assert_if_reached();
|
2017-09-10 14:03:24 +00:00
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}
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2019-04-27 14:54:30 +00:00
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else if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_initial_context_setup) ||
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OGS_FSM_CHECK(&mme_ue->sm, emm_state_exception))
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2018-01-11 23:54:58 +00:00
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{
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2018-01-30 12:57:19 +00:00
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if (mme_sess_count(mme_ue) == 1) /* Last Session */
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{
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2018-01-11 23:54:58 +00:00
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enb_ue_t *enb_ue = NULL;
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enb_ue = mme_ue->enb_ue;
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2019-04-27 14:54:30 +00:00
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ogs_assert(enb_ue);
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2018-01-11 23:54:58 +00:00
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2018-01-21 11:31:28 +00:00
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rv = s1ap_send_ue_context_release_command(enb_ue,
|
2018-03-05 14:01:07 +00:00
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|
|
S1AP_Cause_PR_nas, S1AP_CauseNas_normal_release,
|
2018-02-04 08:05:30 +00:00
|
|
|
S1AP_UE_CTX_REL_UE_CONTEXT_REMOVE, 0);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2018-01-30 12:57:19 +00:00
|
|
|
}
|
2018-01-11 23:54:58 +00:00
|
|
|
}
|
2017-09-10 14:03:24 +00:00
|
|
|
else
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert_if_reached();
|
2017-09-10 14:03:24 +00:00
|
|
|
|
2018-01-30 12:57:19 +00:00
|
|
|
cleanup:
|
|
|
|
if (mme_sess_count(mme_ue) == 1) /* Last Session */
|
2018-02-02 12:09:37 +00:00
|
|
|
CLEAR_SESSION_CONTEXT(mme_ue);
|
2018-01-30 12:57:19 +00:00
|
|
|
|
|
|
|
mme_sess_remove(sess);
|
2017-09-10 14:03:24 +00:00
|
|
|
}
|
2018-01-16 11:49:39 +00:00
|
|
|
|
2017-09-04 13:00:51 +00:00
|
|
|
void mme_s11_handle_create_bearer_request(
|
|
|
|
gtp_xact_t *xact, mme_ue_t *mme_ue, gtp_create_bearer_request_t *req)
|
2017-08-27 07:30:10 +00:00
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
int rv;
|
2018-01-14 13:49:29 +00:00
|
|
|
mme_bearer_t *bearer = NULL, *default_bearer = NULL;
|
2017-09-04 13:00:51 +00:00
|
|
|
mme_sess_t *sess = NULL;
|
|
|
|
|
|
|
|
gtp_f_teid_t *sgw_s1u_teid = NULL;
|
|
|
|
gtp_bearer_qos_t bearer_qos;
|
2017-08-31 05:03:00 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(xact);
|
|
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_assert(req);
|
2017-09-01 12:35:45 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug("[MME] Create Bearer Response");
|
2017-08-31 05:03:00 +00:00
|
|
|
|
2017-09-04 13:00:51 +00:00
|
|
|
if (req->linked_eps_bearer_id.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No Linked EBI");
|
2017-09-04 13:00:51 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (req->bearer_contexts.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No Bearer");
|
2017-09-04 13:00:51 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (req->bearer_contexts.eps_bearer_id.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No EPS Bearer ID");
|
2017-09-04 13:00:51 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (req->bearer_contexts.s1_u_enodeb_f_teid.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No GTP TEID");
|
2017-09-04 13:00:51 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (req->bearer_contexts.bearer_level_qos.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No QoS");
|
2017-09-04 13:00:51 +00:00
|
|
|
return;
|
|
|
|
}
|
2017-09-06 06:38:24 +00:00
|
|
|
if (req->bearer_contexts.tft.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No TFT");
|
2017-09-06 06:38:24 +00:00
|
|
|
return;
|
|
|
|
}
|
2017-09-04 13:00:51 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
2018-01-22 15:00:57 +00:00
|
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
|
|
|
|
2017-09-04 13:00:51 +00:00
|
|
|
sess = mme_sess_find_by_ebi(mme_ue, req->linked_eps_bearer_id.u8);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(sess);
|
2017-09-04 13:00:51 +00:00
|
|
|
|
|
|
|
bearer = mme_bearer_add(sess);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(bearer);
|
2017-09-04 13:00:51 +00:00
|
|
|
|
|
|
|
/* Data Plane(UL) : SGW-S1U */
|
|
|
|
sgw_s1u_teid = req->bearer_contexts.s1_u_enodeb_f_teid.data;
|
|
|
|
bearer->sgw_s1u_teid = ntohl(sgw_s1u_teid->teid);
|
2017-12-07 08:40:15 +00:00
|
|
|
rv = gtp_f_teid_to_ip(sgw_s1u_teid, &bearer->sgw_s1u_ip);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-09-04 13:00:51 +00:00
|
|
|
|
|
|
|
/* Bearer QoS */
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(gtp_parse_bearer_qos(&bearer_qos,
|
2017-09-04 13:00:51 +00:00
|
|
|
&req->bearer_contexts.bearer_level_qos) ==
|
2019-04-27 14:54:30 +00:00
|
|
|
req->bearer_contexts.bearer_level_qos.len);
|
2017-09-04 13:00:51 +00:00
|
|
|
bearer->qos.qci = bearer_qos.qci;
|
|
|
|
bearer->qos.arp.priority_level = bearer_qos.priority_level;
|
|
|
|
bearer->qos.arp.pre_emption_capability =
|
|
|
|
bearer_qos.pre_emption_capability;
|
|
|
|
bearer->qos.arp.pre_emption_vulnerability =
|
|
|
|
bearer_qos.pre_emption_vulnerability;
|
2017-09-04 15:04:05 +00:00
|
|
|
bearer->qos.mbr.downlink = bearer_qos.dl_mbr;
|
|
|
|
bearer->qos.mbr.uplink = bearer_qos.ul_mbr;
|
|
|
|
bearer->qos.gbr.downlink = bearer_qos.dl_gbr;
|
|
|
|
bearer->qos.gbr.uplink = bearer_qos.ul_gbr;
|
2017-09-04 13:00:51 +00:00
|
|
|
|
2017-09-06 15:37:16 +00:00
|
|
|
/* Save Bearer TFT */
|
2017-09-06 11:29:55 +00:00
|
|
|
TLV_STORE_DATA(&bearer->tft, &req->bearer_contexts.tft);
|
2017-09-06 06:38:24 +00:00
|
|
|
|
2017-09-06 15:37:16 +00:00
|
|
|
/* Save Transaction. will be handled after EMM-attached */
|
|
|
|
bearer->xact = xact;
|
2018-01-14 13:49:29 +00:00
|
|
|
|
|
|
|
/* Before Activate DEDICATED bearer, we'll check DEFAULT bearer status */
|
|
|
|
default_bearer = mme_default_bearer_in_sess(sess);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(default_bearer);
|
2018-01-14 13:49:29 +00:00
|
|
|
|
|
|
|
if (/* Check if Activate Default Bearer Accept is received */
|
2019-04-27 14:54:30 +00:00
|
|
|
OGS_FSM_CHECK(&default_bearer->sm, esm_state_active) &&
|
2018-01-14 13:49:29 +00:00
|
|
|
/* Check if Initial Context Setup Response or
|
|
|
|
* E-RAB Setup Response is received */
|
|
|
|
MME_HAVE_ENB_S1U_PATH(default_bearer))
|
|
|
|
{
|
|
|
|
rv = nas_send_activate_dedicated_bearer_context_request(bearer);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2018-01-14 13:49:29 +00:00
|
|
|
}
|
2017-04-28 02:20:09 +00:00
|
|
|
}
|
2017-07-25 12:15:25 +00:00
|
|
|
|
2018-01-17 06:41:45 +00:00
|
|
|
void mme_s11_handle_update_bearer_request(
|
|
|
|
gtp_xact_t *xact, mme_ue_t *mme_ue, gtp_update_bearer_request_t *req)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
int rv;
|
2018-01-17 06:41:45 +00:00
|
|
|
mme_bearer_t *bearer = NULL;
|
|
|
|
gtp_bearer_qos_t bearer_qos;
|
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(xact);
|
|
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_assert(req);
|
2018-01-17 06:41:45 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug("[MME] Update Bearer Request");
|
2018-01-17 06:41:45 +00:00
|
|
|
if (req->bearer_contexts.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No Bearer");
|
2018-01-17 06:41:45 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (req->bearer_contexts.eps_bearer_id.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No EPS Bearer ID");
|
2018-01-17 06:41:45 +00:00
|
|
|
return;
|
|
|
|
}
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
2018-01-22 15:00:57 +00:00
|
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
2018-01-17 06:41:45 +00:00
|
|
|
|
|
|
|
bearer = mme_bearer_find_by_ue_ebi(mme_ue,
|
|
|
|
req->bearer_contexts.eps_bearer_id.u8);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(bearer);
|
2018-01-17 06:41:45 +00:00
|
|
|
|
|
|
|
/* Save Transaction. will be handled after EMM-attached */
|
|
|
|
bearer->xact = xact;
|
|
|
|
|
|
|
|
if (/* Check if Activate Default/Dedicated Bearer Accept is received */
|
2019-04-27 14:54:30 +00:00
|
|
|
OGS_FSM_CHECK(&bearer->sm, esm_state_active) &&
|
2018-01-17 06:41:45 +00:00
|
|
|
/* Check if Initial Context Setup Response or
|
|
|
|
* E-RAB Setup Response is received */
|
|
|
|
MME_HAVE_ENB_S1U_PATH(bearer))
|
|
|
|
{
|
|
|
|
if (req->bearer_contexts.bearer_level_qos.presence == 1)
|
|
|
|
{
|
|
|
|
/* Bearer QoS */
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(gtp_parse_bearer_qos(&bearer_qos,
|
2018-01-17 06:41:45 +00:00
|
|
|
&req->bearer_contexts.bearer_level_qos) ==
|
2019-04-27 14:54:30 +00:00
|
|
|
req->bearer_contexts.bearer_level_qos.len);
|
2018-01-17 06:41:45 +00:00
|
|
|
bearer->qos.qci = bearer_qos.qci;
|
|
|
|
bearer->qos.arp.priority_level = bearer_qos.priority_level;
|
|
|
|
bearer->qos.arp.pre_emption_capability =
|
|
|
|
bearer_qos.pre_emption_capability;
|
|
|
|
bearer->qos.arp.pre_emption_vulnerability =
|
|
|
|
bearer_qos.pre_emption_vulnerability;
|
|
|
|
bearer->qos.mbr.downlink = bearer_qos.dl_mbr;
|
|
|
|
bearer->qos.mbr.uplink = bearer_qos.ul_mbr;
|
|
|
|
bearer->qos.gbr.downlink = bearer_qos.dl_gbr;
|
|
|
|
bearer->qos.gbr.uplink = bearer_qos.ul_gbr;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (req->bearer_contexts.tft.presence == 1)
|
|
|
|
{
|
|
|
|
/* Save Bearer TFT */
|
|
|
|
TLV_STORE_DATA(&bearer->tft, &req->bearer_contexts.tft);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (req->bearer_contexts.bearer_level_qos.presence == 1 ||
|
|
|
|
req->bearer_contexts.tft.presence == 1)
|
|
|
|
{
|
|
|
|
rv = nas_send_modify_bearer_context_request(
|
|
|
|
bearer,
|
|
|
|
req->bearer_contexts.bearer_level_qos.presence,
|
|
|
|
req->bearer_contexts.tft.presence);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2018-01-17 06:41:45 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_warn("[IGNORE] Update Bearer Request : "
|
2018-01-17 06:41:45 +00:00
|
|
|
"Both QoS and TFT is NULL");
|
|
|
|
rv = mme_gtp_send_update_bearer_response(bearer);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2018-01-17 06:41:45 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
if (!OGS_FSM_CHECK(&bearer->sm, esm_state_active))
|
2018-01-17 06:41:45 +00:00
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert_if_reached();
|
2018-01-17 06:41:45 +00:00
|
|
|
}
|
|
|
|
else if (!MME_HAVE_ENB_S1U_PATH(bearer))
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert_if_reached();
|
2018-01-17 06:41:45 +00:00
|
|
|
}
|
|
|
|
else
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert_if_reached();
|
2018-01-17 06:41:45 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
2018-01-16 11:49:39 +00:00
|
|
|
void mme_s11_handle_delete_bearer_request(
|
|
|
|
gtp_xact_t *xact, mme_ue_t *mme_ue, gtp_delete_bearer_request_t *req)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
int rv;
|
2018-01-16 11:49:39 +00:00
|
|
|
mme_bearer_t *bearer = NULL;
|
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(xact);
|
|
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_assert(req);
|
2018-01-16 11:49:39 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug("[MME] Delete Bearer Request");
|
2018-01-16 11:49:39 +00:00
|
|
|
if (req->linked_eps_bearer_id.presence == 1)
|
|
|
|
{
|
|
|
|
bearer = mme_bearer_find_by_ue_ebi(mme_ue, req->linked_eps_bearer_id.u8);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(bearer);
|
2018-01-16 11:49:39 +00:00
|
|
|
}
|
|
|
|
else if (req->eps_bearer_ids.presence == 1)
|
|
|
|
{
|
|
|
|
bearer = mme_bearer_find_by_ue_ebi(
|
|
|
|
mme_ue, req->eps_bearer_ids.u8);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(bearer);
|
2018-01-16 11:49:39 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No Linked EBI or EPS Bearer ID");
|
2018-01-16 11:49:39 +00:00
|
|
|
return;
|
|
|
|
}
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
2018-01-22 15:00:57 +00:00
|
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
2018-01-16 11:49:39 +00:00
|
|
|
|
|
|
|
/* Save Transaction. will be handled after EMM-attached */
|
|
|
|
bearer->xact = xact;
|
|
|
|
|
|
|
|
if (/* Check if Activate Default/Dedicated Bearer Accept is received */
|
2019-04-27 14:54:30 +00:00
|
|
|
OGS_FSM_CHECK(&bearer->sm, esm_state_active) &&
|
2018-01-16 11:49:39 +00:00
|
|
|
/* Check if Initial Context Setup Response or
|
|
|
|
* E-RAB Setup Response is received */
|
|
|
|
MME_HAVE_ENB_S1U_PATH(bearer))
|
|
|
|
{
|
|
|
|
rv = nas_send_deactivate_bearer_context_request(bearer);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2018-01-16 11:49:39 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
if (!OGS_FSM_CHECK(&bearer->sm, esm_state_active))
|
2018-01-16 11:49:39 +00:00
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert_if_reached();
|
2018-01-16 11:49:39 +00:00
|
|
|
}
|
|
|
|
else if (!MME_HAVE_ENB_S1U_PATH(bearer))
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert_if_reached();
|
2018-01-16 11:49:39 +00:00
|
|
|
}
|
|
|
|
else
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert_if_reached();
|
2018-01-16 11:49:39 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
2017-07-25 12:15:25 +00:00
|
|
|
void mme_s11_handle_release_access_bearers_response(
|
2017-09-01 12:35:45 +00:00
|
|
|
gtp_xact_t *xact, mme_ue_t *mme_ue,
|
2017-08-31 05:03:00 +00:00
|
|
|
gtp_release_access_bearers_response_t *rsp)
|
2017-07-25 12:15:25 +00:00
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
int rv;
|
2017-09-10 14:03:24 +00:00
|
|
|
enb_ue_t *enb_ue = NULL;
|
2017-09-01 12:35:45 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(xact);
|
|
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_assert(rsp);
|
2017-07-25 12:15:25 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug("[MME] Release Access Bearers Response");
|
2017-09-10 14:03:24 +00:00
|
|
|
enb_ue = mme_ue->enb_ue;
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(enb_ue);
|
2017-09-10 14:03:24 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
2018-02-01 13:48:59 +00:00
|
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
|
|
|
|
|
|
|
rv = gtp_xact_commit(xact);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2018-02-01 13:48:59 +00:00
|
|
|
|
2017-07-25 12:15:25 +00:00
|
|
|
if (rsp->cause.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No Cause");
|
2017-07-25 12:15:25 +00:00
|
|
|
return;
|
|
|
|
}
|
2017-08-31 05:03:00 +00:00
|
|
|
|
2018-02-03 13:55:05 +00:00
|
|
|
rv = CLEAR_BEARER_CONTEXT(mme_ue);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-09-10 14:03:24 +00:00
|
|
|
|
2018-01-21 11:31:28 +00:00
|
|
|
rv = s1ap_send_ue_context_release_command(enb_ue,
|
2018-03-05 14:01:07 +00:00
|
|
|
S1AP_Cause_PR_nas, S1AP_CauseNas_normal_release,
|
2018-02-04 08:05:30 +00:00
|
|
|
S1AP_UE_CTX_REL_S1_NORMAL_RELEASE, 0);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-07-25 12:15:25 +00:00
|
|
|
}
|
2017-08-02 23:18:19 +00:00
|
|
|
|
|
|
|
void mme_s11_handle_downlink_data_notification(
|
2017-09-01 12:35:45 +00:00
|
|
|
gtp_xact_t *xact, mme_ue_t *mme_ue,
|
2017-08-03 00:32:50 +00:00
|
|
|
gtp_downlink_data_notification_t *noti)
|
2017-08-02 23:18:19 +00:00
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
int rv;
|
2017-09-01 04:51:31 +00:00
|
|
|
gtp_header_t h;
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_pkbuf_t *s11buf = NULL;
|
2017-08-02 23:18:19 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(xact);
|
|
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_assert(noti);
|
2017-08-02 23:18:19 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug("[MME] Downlink Data Notification");
|
|
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
2018-01-11 04:42:33 +00:00
|
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
2017-08-02 23:18:19 +00:00
|
|
|
|
2017-08-09 15:41:09 +00:00
|
|
|
/* Build Downlink data notification ack */
|
2017-09-01 04:51:31 +00:00
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
|
|
h.type = GTP_DOWNLINK_DATA_NOTIFICATION_ACKNOWLEDGE_TYPE;
|
2017-09-01 12:35:45 +00:00
|
|
|
h.teid = mme_ue->sgw_s11_teid;
|
2017-09-01 04:51:31 +00:00
|
|
|
|
2017-09-14 02:12:02 +00:00
|
|
|
rv = mme_s11_build_downlink_data_notification_ack(&s11buf, h.type);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-08-09 15:41:09 +00:00
|
|
|
|
2017-09-01 04:51:31 +00:00
|
|
|
rv = gtp_xact_update_tx(xact, &h, s11buf);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-08-31 05:03:00 +00:00
|
|
|
|
|
|
|
rv = gtp_xact_commit(xact);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-08-02 23:18:19 +00:00
|
|
|
}
|
2017-09-13 11:35:19 +00:00
|
|
|
|
|
|
|
void mme_s11_handle_create_indirect_data_forwarding_tunnel_response(
|
|
|
|
gtp_xact_t *xact, mme_ue_t *mme_ue,
|
|
|
|
gtp_create_indirect_data_forwarding_tunnel_response_t *rsp)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
int rv;
|
2017-09-13 12:51:02 +00:00
|
|
|
mme_bearer_t *bearer = NULL;
|
2017-09-15 03:06:26 +00:00
|
|
|
enb_ue_t *source_ue = NULL;
|
2017-09-13 12:51:02 +00:00
|
|
|
int i;
|
|
|
|
|
|
|
|
tlv_bearer_context_t *bearers[GTP_MAX_NUM_OF_INDIRECT_TUNNEL];
|
|
|
|
gtp_f_teid_t *teid = NULL;
|
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(xact);
|
|
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_assert(rsp);
|
2017-09-13 12:51:02 +00:00
|
|
|
|
2017-09-15 03:06:26 +00:00
|
|
|
source_ue = mme_ue->enb_ue;
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(source_ue);
|
2017-09-15 03:06:26 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug("[MME] Create Indirect Data Forwarding Tunnel Response");
|
2017-09-13 12:51:02 +00:00
|
|
|
if (rsp->cause.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No Cause");
|
2017-09-13 12:51:02 +00:00
|
|
|
return;
|
|
|
|
}
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
2018-01-11 04:42:33 +00:00
|
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
2017-09-13 12:51:02 +00:00
|
|
|
|
|
|
|
rv = gtp_xact_commit(xact);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-09-13 12:51:02 +00:00
|
|
|
|
|
|
|
gtp_bearers_in_create_indirect_tunnel_response(&bearers, rsp);
|
|
|
|
|
|
|
|
for (i = 0; bearers[i]->presence; i++)
|
|
|
|
{
|
|
|
|
if (bearers[i]->eps_bearer_id.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No EBI");
|
2017-09-13 12:51:02 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
bearer = mme_bearer_find_by_ue_ebi(mme_ue,
|
|
|
|
bearers[i]->eps_bearer_id.u8);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(bearer);
|
2017-09-13 12:51:02 +00:00
|
|
|
|
|
|
|
if (bearers[i]->s4_u_sgsn_f_teid.presence)
|
|
|
|
{
|
|
|
|
teid = bearers[i]->s4_u_sgsn_f_teid.data;
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(teid);
|
2017-09-13 12:51:02 +00:00
|
|
|
|
|
|
|
bearer->sgw_dl_teid = ntohl(teid->teid);
|
2017-12-07 08:23:45 +00:00
|
|
|
rv = gtp_f_teid_to_ip(teid, &bearer->sgw_dl_ip);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-09-13 12:51:02 +00:00
|
|
|
}
|
2017-09-14 05:18:47 +00:00
|
|
|
if (bearers[i]->s2b_u_epdg_f_teid_5.presence)
|
2017-09-13 12:51:02 +00:00
|
|
|
{
|
|
|
|
teid = bearers[i]->s2b_u_epdg_f_teid_5.data;
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(teid);
|
2017-09-13 12:51:02 +00:00
|
|
|
|
|
|
|
bearer->sgw_ul_teid = ntohl(teid->teid);
|
2017-12-07 08:23:45 +00:00
|
|
|
rv = gtp_f_teid_to_ip(teid, &bearer->sgw_ul_ip);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-09-13 12:51:02 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-09-15 03:06:26 +00:00
|
|
|
rv = s1ap_send_handover_command(source_ue);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-09-13 11:35:19 +00:00
|
|
|
}
|
2017-09-14 05:18:47 +00:00
|
|
|
|
|
|
|
void mme_s11_handle_delete_indirect_data_forwarding_tunnel_response(
|
|
|
|
gtp_xact_t *xact, mme_ue_t *mme_ue,
|
|
|
|
gtp_delete_indirect_data_forwarding_tunnel_response_t *rsp)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
int rv;
|
2017-09-14 05:18:47 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(xact);
|
|
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_assert(rsp);
|
2017-09-14 05:18:47 +00:00
|
|
|
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug("[MME] Delete Indirect Data Forwarding Tunnel Response");
|
2017-09-14 05:18:47 +00:00
|
|
|
if (rsp->cause.presence == 0)
|
|
|
|
{
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_error("No Cause");
|
2017-09-14 05:18:47 +00:00
|
|
|
return;
|
|
|
|
}
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
2018-01-11 04:42:33 +00:00
|
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
2017-09-14 05:18:47 +00:00
|
|
|
|
|
|
|
rv = gtp_xact_commit(xact);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-09-14 05:18:47 +00:00
|
|
|
|
2018-03-07 13:32:31 +00:00
|
|
|
rv = mme_ue_clear_indirect_tunnel(mme_ue);
|
2019-04-27 14:54:30 +00:00
|
|
|
ogs_assert(rv == OGS_OK);
|
2017-09-14 05:18:47 +00:00
|
|
|
}
|