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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2017-04-11 06:13:30 +00:00
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#include "mme_s11_build.h"
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#include "mme_s11_path.h"
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2017-04-08 02:38:09 +00:00
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2017-04-13 10:15:53 +00:00
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void esm_handle_pdn_connectivity_request(mme_bearer_t *bearer,
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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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#if 0 /* TODO */
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printf("request type = 0x%x, %d\n",
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pdn_connectivity_request->request_type.request_type,
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pdn_connectivity_request->request_type.pdn_type);
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printf("precesce = 0x%x\n", pdn_connectivity_request->presencemask);
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printf("flag = 0x%x\n",
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pdn_connectivity_request->esm_information_transfer_flag.security_protected_required);
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#endif
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}
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2017-04-11 06:07:46 +00:00
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2017-04-14 01:27:31 +00:00
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void esm_handle_s6a_update_location(mme_bearer_t *bearer)
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2017-04-13 10:58:58 +00:00
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{
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status_t rv;
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mme_ue_t *ue = NULL;
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mme_enb_t *enb = NULL;
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pkbuf_t *esmbuf = NULL, *s1apbuf = NULL;
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d_assert(bearer, return, "Null param");
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ue = bearer->ue;
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d_assert(ue, return, "Null param");
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enb = ue->enb;
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d_assert(ue->enb, return, "Null param");
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rv = esm_build_information_request(&esmbuf, bearer);
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d_assert(rv == CORE_OK && esmbuf, return, "esm_build failed");
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rv = s1ap_build_downlink_nas_transport(&s1apbuf, ue, 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(s1ap_send_to_enb(enb, s1apbuf) == CORE_OK,, "s1ap send error");
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}
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2017-04-14 01:27:31 +00:00
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void esm_handle_modify_bearer_request(mme_bearer_t *bearer)
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2017-04-13 16:26:50 +00:00
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{
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status_t rv;
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mme_ue_t *ue = NULL;
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pkbuf_t *pkbuf = NULL;
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d_assert(bearer, return, "Null param");
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ue = bearer->ue;
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d_assert(ue, return, "Null param");
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rv = mme_s11_build_modify_bearer_request(&pkbuf, bearer);
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d_assert(rv == CORE_OK, return, "S11 build error");
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rv = mme_s11_send_to_sgw(bearer->sgw,
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GTP_MODIFY_BEARER_REQUEST_TYPE, ue->sgw_s11_teid, pkbuf);
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d_assert(rv == CORE_OK, return, "S11 send error");
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}
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2017-04-13 10:15:53 +00:00
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void esm_handle_information_response(mme_bearer_t *bearer,
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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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2017-04-12 04:45:57 +00:00
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mme_ue_t *ue = NULL;
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2017-04-11 11:44:38 +00:00
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pkbuf_t *pkbuf = NULL;
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status_t rv;
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2017-04-11 06:13:30 +00:00
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2017-04-13 10:15:53 +00:00
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d_assert(bearer, return, "Null param");
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ue = bearer->ue;
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2017-04-12 04:45:57 +00:00
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d_assert(ue, return, "Null param");
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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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2017-04-13 10:15:53 +00:00
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bearer->pdn = mme_pdn_find_by_apn(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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2017-04-13 10:15:53 +00:00
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d_assert(bearer->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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2017-04-13 10:15:53 +00:00
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bearer->ue_pco_len = protocol_configuration_options->length;
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d_assert(bearer->ue_pco_len <= MAX_PCO_LEN, return,
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"length(%d) exceeds MAX:%d", bearer->ue_pco_len, MAX_PCO_LEN);
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memcpy(bearer->ue_pco, protocol_configuration_options->buffer,
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bearer->ue_pco_len);
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2017-04-11 14:25:33 +00:00
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}
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2017-04-13 10:15:53 +00:00
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rv = mme_s11_build_create_session_request(&pkbuf, bearer);
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2017-04-11 11:44:38 +00:00
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d_assert(rv == CORE_OK, return, "S11 build error");
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2017-04-13 10:15:53 +00:00
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rv = mme_s11_send_to_sgw(bearer->sgw,
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2017-04-11 11:44:38 +00:00
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GTP_CREATE_SESSION_REQUEST_TYPE, 0, pkbuf);
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d_assert(rv == CORE_OK, return, "S11 send error");
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2017-04-11 06:07:46 +00:00
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}
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