s1ap_eNB_overload.c 4.22 KB
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/*! \file s1ap_eNB_overload.c
 * \brief s1ap procedures for overload messages within eNB
 * \author Sebastien ROUX <sebastien.roux@eurecom.fr>
 * \date 2012
 * \version 0.1
 */

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>

#include "intertask_interface.h"

#include "s1ap_common.h"
#include "s1ap_ies_defs.h"
#include "s1ap_eNB_defs.h"

#include "s1ap_eNB.h"
#include "s1ap_eNB_ue_context.h"
#include "s1ap_eNB_encoder.h"
#include "s1ap_eNB_overload.h"

#include "sctp_primitives_client.h"

#include "assertions.h"

// int s1ap_eNB_handle_overload_start(eNB_mme_desc_t *eNB_desc_p,
//                                    sctp_queue_item_t *packet_p,
//                                    struct s1ap_message_s *message_p)
int s1ap_eNB_handle_overload_start(uint32_t               assoc_id,
                                   uint32_t               stream,
                                   struct s1ap_message_s *message_p)
{
    OverloadStartIEs_t  *overload_start_p;
    s1ap_eNB_mme_data_t *mme_desc_p;

    DevAssert(message_p != NULL);

    overload_start_p = &message_p->msg.overloadStartIEs;

//     DevCheck(overload_start_p->overloadResponse.present ==
//              OverloadResponse_PR_overloadAction,
//              OverloadResponse_PR_overloadAction, 0, 0);
// 
//     /* Non UE-associated signalling -> stream 0 */
//     DevCheck(packet_p->local_stream == 0, packet_p->local_stream,
//              packet_p->remote_port, packet_p->assoc_id);
// 
//     if ((mme_desc_p = s1ap_eNB_get_MME(eNB_desc_p, packet_p->assoc_id)) == NULL) {
//         /* No MME context associated */
//         return -1;
//     }
// 
//     /* Mark the MME as overloaded and set the overload state according to
//      * the value received.
//      */
//     mme_desc_p->state = S1AP_ENB_OVERLOAD;
//     mme_desc_p->overload_state =
//         overload_start_p->overloadResponse.choice.overloadAction;

    return 0;
}

int s1ap_eNB_handle_overload_stop(uint32_t               assoc_id,
                                  uint32_t               stream,
                                  struct s1ap_message_s *message_p)
// int s1ap_eNB_handle_overload_stop(eNB_mme_desc_t *eNB_desc_p,
//                                   sctp_queue_item_t *packet_p,
//                                   struct s1ap_message_s *message_p)
{
    /* We received Overload stop message, meaning that the MME is no more
     * overloaded. This is an empty message, with only message header and no
     * Information Element.
     */

    DevAssert(message_p != NULL);

//     s1ap_eNB_mme_data_t *mme_desc_p;
// 
//     /* Non UE-associated signalling -> stream 0 */
//     DevCheck(packet_p->local_stream == 0, packet_p->local_stream,
//              packet_p->remote_port, packet_p->assoc_id);
// 
//     if ((mme_desc_p = s1ap_eNB_get_MME(eNB_desc_p, packet_p->assoc_id)) == NULL) {
//         /* No MME context associated */
//         return -1;
//     }
// 
//     mme_desc_p->state = S1AP_ENB_STATE_CONNECTED;
//     mme_desc_p->overload_state = S1AP_NO_OVERLOAD;
    return 0;
}