enb_agent_mac.c 47.3 KB
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/*******************************************************************************
    OpenAirInterface
    Copyright(c) 1999 - 2014 Eurecom

    OpenAirInterface is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.


    OpenAirInterface is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with OpenAirInterface.The full GNU General Public License is
   included in this distribution in the file called "COPYING". If not,
   see <http://www.gnu.org/licenses/>.

  Contact Information
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr

  Address      : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.

 *******************************************************************************/

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/*! \file enb_agent_mac.c
 * \brief enb agent message handler for MAC layer
 * \author Navid Nikaein and Xenofon Foukas
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 * \date 2016
 * \version 0.1
 */

#include "enb_agent_mac.h"
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#include "enb_agent_extern.h"
#include "enb_agent_common.h"
#include "enb_agent_mac_internal.h"
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#include "LAYER2/MAC/proto.h"
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#include "LAYER2/MAC/enb_agent_mac_proto.h"
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#include "log.h"

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/*Flags showing if a mac agent has already been registered*/
unsigned int mac_agent_registered[NUM_MAX_ENB];

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/*Array containing the Agent-MAC interfaces*/
AGENT_MAC_xface *agent_mac_xface[NUM_MAX_ENB];

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int enb_agent_mac_handle_stats(mid_t mod_id, const void *params, Protocol__ProgranMessage **msg){
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  // TODO: Must deal with sanitization of input
  // TODO: Must check if RNTIs and cell ids of the request actually exist
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  // TODO: Must resolve conflicts among stats requests
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  int i;
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  void *buffer;
  int size;
  err_code_t err_code;
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  xid_t xid;
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  uint32_t usec_interval, sec_interval;
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  //TODO: We do not deal with multiple CCs at the moment and eNB id is 0
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  int cc_id = 0;
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  int enb_id = mod_id;
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  //eNB_MAC_INST *eNB = &eNB_mac_inst[enb_id];
  //UE_list_t *eNB_UE_list=  &eNB->UE_list;
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  report_config_t report_config;

  uint32_t ue_flags = 0;
  uint32_t c_flags = 0;

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  Protocol__ProgranMessage *input = (Protocol__ProgranMessage *)params;

  Protocol__PrpStatsRequest *stats_req = input->stats_request_msg;
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  xid = (stats_req->header)->xid;
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  // Check the type of request that is made
  switch(stats_req->body_case) {
  case PROTOCOL__PRP_STATS_REQUEST__BODY_COMPLETE_STATS_REQUEST: ;
    Protocol__PrpCompleteStatsRequest *comp_req = stats_req->complete_stats_request;
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    if (comp_req->report_frequency == PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_OFF) {
      /*Disable both periodic and continuous updates*/
      enb_agent_disable_cont_mac_stats_update(mod_id);
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      enb_agent_destroy_timer_by_task_id(xid);
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      *msg = NULL;
      return 0;
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    } else { //One-off, periodical or continuous reporting
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      //Set the proper flags
      ue_flags = comp_req->ue_report_flags;
      c_flags = comp_req->cell_report_flags;
      //Create a list of all eNB RNTIs and cells
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      //Set the number of UEs and create list with their RNTIs stats configs
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      report_config.nr_ue = get_num_ues(mod_id); //eNB_UE_list->num_UEs
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      report_config.ue_report_type = (ue_report_type_t *) malloc(sizeof(ue_report_type_t) * report_config.nr_ue);
      if (report_config.ue_report_type == NULL) {
	// TODO: Add appropriate error code
	err_code = -100;
	goto error;
      }
      for (i = 0; i < report_config.nr_ue; i++) {
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	report_config.ue_report_type[i].ue_rnti = get_ue_crnti(enb_id, i); //eNB_UE_list->eNB_UE_stats[UE_PCCID(enb_id,i)][i].crnti;
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	report_config.ue_report_type[i].ue_report_flags = ue_flags;
      }
      //Set the number of CCs and create a list with the cell stats configs
      report_config.nr_cc = MAX_NUM_CCs;
      report_config.cc_report_type = (cc_report_type_t *) malloc(sizeof(cc_report_type_t) * report_config.nr_cc);
      if (report_config.cc_report_type == NULL) {
	// TODO: Add appropriate error code
	err_code = -100;
	goto error;
      }
      for (i = 0; i < report_config.nr_cc; i++) {
	//TODO: Must fill in the proper cell ids
	report_config.cc_report_type[i].cc_id = i;
	report_config.cc_report_type[i].cc_report_flags = c_flags;
      }
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      /* Check if request was periodical */
      if (comp_req->report_frequency == PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_PERIODICAL) {
	/* Create a one off progran message as an argument for the periodical task */
	Protocol__ProgranMessage *timer_msg;
	stats_request_config_t request_config;
	request_config.report_type = PROTOCOL__PRP_STATS_TYPE__PRST_COMPLETE_STATS;
	request_config.report_frequency = PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_ONCE;
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	request_config.period = 0;
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	request_config.config = &report_config;
	enb_agent_mac_stats_request(enb_id, xid, &request_config, &timer_msg);
	/* Create a timer */
	long timer_id = 0;
	enb_agent_timer_args_t *timer_args;
	timer_args = malloc(sizeof(enb_agent_timer_args_t));
	memset (timer_args, 0, sizeof(enb_agent_timer_args_t));
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	timer_args->mod_id = enb_id;
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	timer_args->msg = timer_msg;
	/*Convert subframes to usec time*/
	usec_interval = 1000*comp_req->sf;
	sec_interval = 0;
	/*add seconds if required*/
	if (usec_interval >= 1000*1000) {
	  sec_interval = usec_interval/(1000*1000);
	  usec_interval = usec_interval%(1000*1000);
	}
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	enb_agent_create_timer(sec_interval, usec_interval, ENB_AGENT_DEFAULT, enb_id, ENB_AGENT_TIMER_TYPE_PERIODIC, xid, enb_agent_handle_timed_task,(void*) timer_args, &timer_id);
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      } else if (comp_req->report_frequency == PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_CONTINUOUS) {
	/*If request was for continuous updates, disable the previous configuration and
	  set up a new one*/
	enb_agent_disable_cont_mac_stats_update(mod_id);
	stats_request_config_t request_config;
	request_config.report_type = PROTOCOL__PRP_STATS_TYPE__PRST_COMPLETE_STATS;
	request_config.report_frequency = PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_ONCE;
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	request_config.period = 0;
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	request_config.config = &report_config;
	enb_agent_enable_cont_mac_stats_update(enb_id, xid, &request_config);
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      }
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    }
    break;
  case PROTOCOL__PRP_STATS_REQUEST__BODY_CELL_STATS_REQUEST:;
    Protocol__PrpCellStatsRequest *cell_req = stats_req->cell_stats_request;
    // UE report config will be blank
    report_config.nr_ue = 0;
    report_config.ue_report_type = NULL;
    report_config.nr_cc = cell_req->n_cell;
    report_config.cc_report_type = (cc_report_type_t *) malloc(sizeof(cc_report_type_t) * report_config.nr_cc);
    if (report_config.cc_report_type == NULL) {
      // TODO: Add appropriate error code
      err_code = -100;
      goto error;
    }
    for (i = 0; i < report_config.nr_cc; i++) {
	//TODO: Must fill in the proper cell ids
      report_config.cc_report_type[i].cc_id = cell_req->cell[i];
      report_config.cc_report_type[i].cc_report_flags = cell_req->flags;
    }
    break;
  case PROTOCOL__PRP_STATS_REQUEST__BODY_UE_STATS_REQUEST:;
    Protocol__PrpUeStatsRequest *ue_req = stats_req->ue_stats_request;
    // Cell report config will be blank
    report_config.nr_cc = 0;
    report_config.cc_report_type = NULL;
    report_config.nr_ue = ue_req->n_rnti;
    report_config.ue_report_type = (ue_report_type_t *) malloc(sizeof(ue_report_type_t) * report_config.nr_ue);
    if (report_config.ue_report_type == NULL) {
      // TODO: Add appropriate error code
      err_code = -100;
      goto error;
    }
    for (i = 0; i < report_config.nr_ue; i++) {
      report_config.ue_report_type[i].ue_rnti = ue_req->rnti[i];
      report_config.ue_report_type[i].ue_report_flags = ue_req->flags;
    }
    break;
  default:
    //TODO: Add appropriate error code
    err_code = -100;
    goto error;
  }
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  if (enb_agent_mac_stats_reply(enb_id, xid, &report_config, msg) < 0 ){
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    err_code = PROTOCOL__PROGRAN_ERR__MSG_BUILD;
    goto error;
  }

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  free(report_config.ue_report_type);
  free(report_config.cc_report_type);

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  return 0;

 error :
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  LOG_E(ENB_AGENT, "errno %d occured\n", err_code);
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  return err_code;
}

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int enb_agent_mac_stats_request(mid_t mod_id,
				xid_t xid,
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				const stats_request_config_t *report_config,
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				Protocol__ProgranMessage **msg) {
  Protocol__PrpHeader *header;
  int i;
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  if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_STATS_REQUEST, &header) != 0)
    goto error;
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  Protocol__PrpStatsRequest *stats_request_msg;
  stats_request_msg = malloc(sizeof(Protocol__PrpStatsRequest));
  if(stats_request_msg == NULL)
    goto error;

  protocol__prp_stats_request__init(stats_request_msg);
  stats_request_msg->header = header;
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  stats_request_msg->type = report_config->report_type;
  stats_request_msg->has_type = 1;
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  switch (report_config->report_type) {
  case PROTOCOL__PRP_STATS_TYPE__PRST_COMPLETE_STATS:
    stats_request_msg->body_case =  PROTOCOL__PRP_STATS_REQUEST__BODY_COMPLETE_STATS_REQUEST;
    Protocol__PrpCompleteStatsRequest *complete_stats;
    complete_stats = malloc(sizeof(Protocol__PrpCompleteStatsRequest));
    if(complete_stats == NULL)
      goto error;
    protocol__prp_complete_stats_request__init(complete_stats);
    complete_stats->report_frequency = report_config->report_frequency;
    complete_stats->has_report_frequency = 1;
    complete_stats->sf = report_config->period;
    complete_stats->has_sf = 1;
    complete_stats->has_cell_report_flags = 1;
    complete_stats->has_ue_report_flags = 1;
    if (report_config->config->nr_cc > 0) {
      complete_stats->cell_report_flags = report_config->config->cc_report_type[0].cc_report_flags;
    }
    if (report_config->config->nr_ue > 0) {
      complete_stats->ue_report_flags = report_config->config->ue_report_type[0].ue_report_flags;
    }
    stats_request_msg->complete_stats_request = complete_stats;
    break;
  case  PROTOCOL__PRP_STATS_TYPE__PRST_CELL_STATS:
    stats_request_msg->body_case = PROTOCOL__PRP_STATS_REQUEST__BODY_CELL_STATS_REQUEST;
     Protocol__PrpCellStatsRequest *cell_stats;
     cell_stats = malloc(sizeof(Protocol__PrpCellStatsRequest));
    if(cell_stats == NULL)
      goto error;
    protocol__prp_cell_stats_request__init(cell_stats);
    cell_stats->n_cell = report_config->config->nr_cc;
    cell_stats->has_flags = 1;
    if (cell_stats->n_cell > 0) {
      uint32_t *cells;
      cells = (uint32_t *) malloc(sizeof(uint32_t)*cell_stats->n_cell);
      for (i = 0; i < cell_stats->n_cell; i++) {
	cells[i] = report_config->config->cc_report_type[i].cc_id;
      }
      cell_stats->cell = cells;
      cell_stats->flags = report_config->config->cc_report_type[i].cc_report_flags;
    }
    stats_request_msg->cell_stats_request = cell_stats;
    break;
  case PROTOCOL__PRP_STATS_TYPE__PRST_UE_STATS:
    stats_request_msg->body_case = PROTOCOL__PRP_STATS_REQUEST__BODY_UE_STATS_REQUEST;
     Protocol__PrpUeStatsRequest *ue_stats;
     ue_stats = malloc(sizeof(Protocol__PrpUeStatsRequest));
    if(ue_stats == NULL)
      goto error;
    protocol__prp_ue_stats_request__init(ue_stats);
    ue_stats->n_rnti = report_config->config->nr_ue;
    ue_stats->has_flags = 1;
    if (ue_stats->n_rnti > 0) {
      uint32_t *ues;
      ues = (uint32_t *) malloc(sizeof(uint32_t)*ue_stats->n_rnti);
      for (i = 0; i < ue_stats->n_rnti; i++) {
	ues[i] = report_config->config->ue_report_type[i].ue_rnti;
      }
      ue_stats->rnti = ues;
      ue_stats->flags = report_config->config->ue_report_type[i].ue_report_flags;
    }
    stats_request_msg->ue_stats_request = ue_stats;
    break;
  default:
    goto error;
  }
  *msg = malloc(sizeof(Protocol__ProgranMessage));
  if(*msg == NULL)
    goto error;
  protocol__progran_message__init(*msg);
  (*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REQUEST_MSG;
  (*msg)->msg_dir = PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
  (*msg)->stats_request_msg = stats_request_msg;
  return 0;
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 error:
  // TODO: Need to make proper error handling
  if (header != NULL)
    free(header);
  if (stats_request_msg != NULL)
    free(stats_request_msg);
  if(*msg != NULL)
    free(*msg);
  //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
  return -1;
}

int enb_agent_mac_destroy_stats_request(Protocol__ProgranMessage *msg) {
   if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REQUEST_MSG)
    goto error;
  free(msg->stats_request_msg->header);
  if (msg->stats_request_msg->body_case == PROTOCOL__PRP_STATS_REQUEST__BODY_CELL_STATS_REQUEST) {
    free(msg->stats_request_msg->cell_stats_request->cell);
  }
  if (msg->stats_request_msg->body_case == PROTOCOL__PRP_STATS_REQUEST__BODY_UE_STATS_REQUEST) {
    free(msg->stats_request_msg->ue_stats_request->rnti);
  }
  free(msg->stats_request_msg);
  free(msg);
  return 0;
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 error:
  //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
  return -1;
}

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int enb_agent_mac_stats_reply(mid_t mod_id,
			      xid_t xid,
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			      const report_config_t *report_config,
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			      Protocol__ProgranMessage **msg) {
  Protocol__PrpHeader *header;
  int i, j, k;
  int cc_id = 0;
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  int enb_id = mod_id;
  //eNB_MAC_INST *eNB = &eNB_mac_inst[enb_id];
  //UE_list_t *eNB_UE_list=  &eNB->UE_list;
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  if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_STATS_REPLY, &header) != 0)
    goto error;

  Protocol__PrpStatsReply *stats_reply_msg;
  stats_reply_msg = malloc(sizeof(Protocol__PrpStatsReply));
  if (stats_reply_msg == NULL)
    goto error;
  protocol__prp_stats_reply__init(stats_reply_msg);
  stats_reply_msg->header = header;

  stats_reply_msg->n_ue_report = report_config->nr_ue;
  stats_reply_msg->n_cell_report = report_config->nr_cc;

  Protocol__PrpUeStatsReport **ue_report;
  Protocol__PrpCellStatsReport **cell_report;

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  /* Allocate memory for list of UE reports */
  if (report_config->nr_ue > 0) {
    ue_report = malloc(sizeof(Protocol__PrpUeStatsReport *) * report_config->nr_ue);
    if (ue_report == NULL)
      goto error;
    for (i = 0; i < report_config->nr_ue; i++) {
      ue_report[i] = malloc(sizeof(Protocol__PrpUeStatsReport));
      protocol__prp_ue_stats_report__init(ue_report[i]);
      ue_report[i]->rnti = report_config->ue_report_type[i].ue_rnti;
      ue_report[i]->has_rnti = 1;
      ue_report[i]->flags = report_config->ue_report_type[i].ue_report_flags;
      ue_report[i]->has_flags = 1;
      /* Check the types of reports that need to be constructed based on flag values */

      /* Check flag for creation of buffer status report */
      if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_BSR) {
	//TODO: Create a report for each LCG (4 elements). See prp_ue_stats_report of
	// progRAN specifications for more details
	ue_report[i]->n_bsr = 4;
	uint32_t *elem;
	elem = (uint32_t *) malloc(sizeof(uint32_t)*ue_report[i]->n_bsr);
	if (elem == NULL)
	  goto error;
	for (j = 0; j++; j < ue_report[i]->n_bsr) {
	  // Set the actual BSR for LCG j of the current UE
	  // NN: we need to know the cc_id here, consider the first one
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	  elem[j] = get_ue_bsr (enb_id, i, j); //eNB_UE_list->UE_template[UE_PCCID(enb_id,i)][i].bsr_info[j];
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	}
	ue_report[i]->bsr = elem;
      }
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      /* Check flag for creation of PRH report */
      if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PRH) {
	// TODO: Fill in the actual power headroom value for the RNTI
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	ue_report[i]->phr = get_ue_phr (enb_id, i); // eNB_UE_list->UE_template[UE_PCCID(enb_id,i)][i].phr_info;
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	ue_report[i]->has_phr = 1;
      }

      /* Check flag for creation of RLC buffer status report */
      if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_RLC_BS) {
	// TODO: Fill in the actual RLC buffer status reports
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	ue_report[i]->n_rlc_report = 3; // Set this to the number of LCs for this UE
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	Protocol__PrpRlcBsr ** rlc_reports;
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	rlc_reports = malloc(sizeof(Protocol__PrpRlcBsr *) * ue_report[i]->n_rlc_report);
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	if (rlc_reports == NULL)
	  goto error;
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	// Fill the buffer status report for each logical channel of the UE
	// NN: see LAYER2/openair2_proc.c for rlc status
	for (j = 0; j < ue_report[i]->n_rlc_report; j++) {
	  rlc_reports[j] = malloc(sizeof(Protocol__PrpRlcBsr));
	  if (rlc_reports[j] == NULL)
	    goto error;
	  protocol__prp_rlc_bsr__init(rlc_reports[j]);
	  //TODO:Set logical channel id
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	  rlc_reports[j]->lc_id = j+1;
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	  rlc_reports[j]->has_lc_id = 1;
	  //TODO:Set tx queue size in bytes
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	  rlc_reports[j]->tx_queue_size = get_tx_queue_size(enb_id,i,j+1);
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	  rlc_reports[j]->has_tx_queue_size = 1;
	  //TODO:Set tx queue head of line delay in ms
	  rlc_reports[j]->tx_queue_hol_delay = 100;
	  rlc_reports[j]->has_tx_queue_hol_delay = 1;
	  //TODO:Set retransmission queue size in bytes
	  rlc_reports[j]->retransmission_queue_size = 10;
	  rlc_reports[j]->has_retransmission_queue_size = 1;
	  //TODO:Set retransmission queue head of line delay in ms
	  rlc_reports[j]->retransmission_queue_hol_delay = 100;
	  rlc_reports[j]->has_retransmission_queue_hol_delay = 1;
	  //TODO:Set current size of the pending message in bytes
	  rlc_reports[j]->status_pdu_size = 100;
	  rlc_reports[j]->has_status_pdu_size = 1;
	}
	// Add RLC buffer status reports to the full report
	if (ue_report[i]->n_rlc_report > 0)
	  ue_report[i]->rlc_report = rlc_reports;
      }

      /* Check flag for creation of MAC CE buffer status report */
      if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_MAC_CE_BS) {
	// TODO: Fill in the actual MAC CE buffer status report
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	ue_report[i]->pending_mac_ces = (get_MAC_CE_bitmap_TA(enb_id,i) | (0 << 1) | (0 << 2) | (0 << 3)) & 15; /* Use as bitmap. Set one or more of the; /* Use as bitmap. Set one or more of the
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					       PROTOCOL__PRP_CE_TYPE__PRPCET_ values
					       found in stats_common.pb-c.h. See
					       prp_ce_type in progRAN specification */
	ue_report[i]->has_pending_mac_ces = 1;
      }
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      /* Check flag for creation of DL CQI report */
      if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_DL_CQI) {
	// TODO: Fill in the actual DL CQI report for the UE based on its configuration
	Protocol__PrpDlCqiReport * dl_report;
	dl_report = malloc(sizeof(Protocol__PrpDlCqiReport));
	if (dl_report == NULL)
	  goto error;
	protocol__prp_dl_cqi_report__init(dl_report);
	//TODO:Set the SFN and SF of the last report held in the agent.
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	dl_report->sfn_sn = get_sfn_sf(enb_id);
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	dl_report->has_sfn_sn = 1;
	//TODO:Set the number of DL CQI reports for this UE. One for each CC
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	dl_report->n_csi_report = get_active_CC(enb_id,i);
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	//TODO:Create the actual CSI reports.
	Protocol__PrpDlCsi **csi_reports;
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	csi_reports = malloc(sizeof(Protocol__PrpDlCsi *)*dl_report->n_csi_report);
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	if (csi_reports == NULL)
	  goto error;
	for (j = 0; j < dl_report->n_csi_report; j++) {
	  csi_reports[j] = malloc(sizeof(Protocol__PrpDlCsi));
	  if (csi_reports[j] == NULL)
	    goto error;
	  protocol__prp_dl_csi__init(csi_reports[j]);
	  //TODO: the servCellIndex for this report
487
	  csi_reports[j]->serv_cell_index = j;
488 489
	  csi_reports[j]->has_serv_cell_index = 1;
	  //TODO: the rank indicator value for this cc
490
	  csi_reports[j]->ri = get_current_RI(enb_id,i,j);
491 492 493 494 495
	  csi_reports[j]->has_ri = 1;
	  //TODO: the type of CSI report based on the configuration of the UE
	  //For this example we use type P10, which only needs a wideband value
	  //The full set of types can be found in stats_common.pb-c.h and
	  //in the progRAN specifications
496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536
    csi_reports[j]->type =  PROTOCOL__PRP_CSI_TYPE__PRCSIT_P10;
		  csi_reports[j]->has_type = 1;
		  csi_reports[j]->report_case = PROTOCOL__PRP_DL_CSI__REPORT_P10CSI;
		  if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_P10CSI){
			  Protocol__PrpCsiP10 *csi10;
			  csi10 = malloc(sizeof(Protocol__PrpCsiP10));
			  if (csi10 == NULL)
				goto error;
			  protocol__prp_csi_p10__init(csi10);
			  //TODO: set the wideband value
			  // NN: this is also depends on cc_id
			  csi10->wb_cqi = get_ue_wcqi (enb_id, i); //eNB_UE_list->eNB_UE_stats[UE_PCCID(enb_id,i)][i].dl_cqi;
			  csi10->has_wb_cqi = 1;
			  //Add the type of measurements to the csi report in the proper union type
			  csi_reports[j]->p10csi = csi10;
		  }
		  else if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_P11CSI){

		  }
		  else if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_P20CSI){

		  }
		  else if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_P21CSI){

		  }
		  else if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_A12CSI){

		  }
		  else if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_A22CSI){

		  }
		  else if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_A20CSI){

		  }
		  else if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_A30CSI){

		  }
		  else if(csi_reports[j]->report_case == PROTOCOL__PRP_DL_CSI__REPORT_A31CSI){

		  }
		}
537 538 539 540 541
	//Add the csi reports to the full DL CQI report
	dl_report->csi_report = csi_reports;
	//Add the DL CQI report to the stats report
	ue_report[i]->dl_cqi_report = dl_report;
      }
542

543 544 545 546 547 548 549 550 551 552 553 554 555
      /* Check flag for creation of paging buffer status report */
      if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PBS) {
	//TODO: Fill in the actual paging buffer status report. For this field to be valid, the RNTI
	//set in the report must be a P-RNTI
	Protocol__PrpPagingBufferReport *paging_report;
	paging_report = malloc(sizeof(Protocol__PrpPagingBufferReport));
	if (paging_report == NULL)
	  goto error;
	protocol__prp_paging_buffer_report__init(paging_report);
	//Set the number of pending paging messages
	paging_report->n_paging_info = 1;
	//Provide a report for each pending paging message
	Protocol__PrpPagingInfo **p_info;
556
	p_info = malloc(sizeof(Protocol__PrpPagingInfo *) * paging_report->n_paging_info);
557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582
	if (p_info == NULL)
	  goto error;
	for (j = 0; j < paging_report->n_paging_info; j++) {
	  p_info[j] = malloc(sizeof(Protocol__PrpPagingInfo));
	  if(p_info[j] == NULL)
	    goto error;
	  protocol__prp_paging_info__init(p_info[j]);
	  //TODO: Set paging index. This index is the same that will be used for the scheduling of the
	  //paging message by the controller
	  p_info[j]->paging_index = 10;
	  p_info[j]->has_paging_index = 1;
	  //TODO:Set the paging message size
	  p_info[j]->paging_message_size = 100;
	  p_info[j]->has_paging_message_size = 1;
	  //TODO: Set the paging subframe
	  p_info[j]->paging_subframe = 10;
	  p_info[j]->has_paging_subframe = 1;
	  //TODO: Set the carrier index for the pending paging message
	  p_info[j]->carrier_index = 0;
	  p_info[j]->has_carrier_index = 1;
	}
	//Add all paging info to the paging buffer rerport
	paging_report->paging_info = p_info;
	//Add the paging report to the UE report
	ue_report[i]->pbr = paging_report;
      }
583

584 585 586 587 588 589 590 591 592
      /* Check flag for creation of UL CQI report */
      if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_UL_CQI) {
	//Fill in the full UL CQI report of the UE
	Protocol__PrpUlCqiReport *full_ul_report;
	full_ul_report = malloc(sizeof(Protocol__PrpUlCqiReport));
	if(full_ul_report == NULL)
	  goto error;
	protocol__prp_ul_cqi_report__init(full_ul_report);
	//TODO:Set the SFN and SF of the generated report
593
	full_ul_report->sfn_sn = get_sfn_sf(enb_id);
594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645
	full_ul_report->has_sfn_sn = 1;
	//TODO:Set the number of UL measurement reports based on the types of measurements
	//configured for this UE and on the servCellIndex
	full_ul_report->n_cqi_meas = 1;
	Protocol__PrpUlCqi **ul_report;
	ul_report = malloc(sizeof(Protocol__PrpUlCqi *) * full_ul_report->n_cqi_meas);
	if(ul_report == NULL)
	  goto error;
	//Fill each UL report of the UE for each of the configured report types
	for(j = 0; j++; j < full_ul_report->n_cqi_meas) {
	  ul_report[j] = malloc(sizeof(Protocol__PrpUlCqi));
	  if(ul_report[j] == NULL)
	  goto error;
	  protocol__prp_ul_cqi__init(ul_report[j]);
	  //TODO: Set the type of the UL report. As an example set it to SRS UL report
	  // See enum prp_ul_cqi_type in progRAN specification for more details
	  ul_report[j]->type = PROTOCOL__PRP_UL_CQI_TYPE__PRUCT_SRS;
	  ul_report[j]->has_type = 1;
	  //TODO:Set the number of SINR measurements based on the report type
	  //See struct prp_ul_cqi in progRAN specification for more details
	  ul_report[j]->n_sinr = 100;
	  uint32_t *sinr_meas;
	  sinr_meas = (uint32_t *) malloc(sizeof(uint32_t) * ul_report[j]->n_sinr);
	  if (sinr_meas == NULL)
	    goto error;
	  //TODO:Set the SINR measurements for the specified type
	  for (k = 0; k < ul_report[j]->n_sinr; k++) {
	    sinr_meas[k] = 10;
	  }
	  ul_report[j]->sinr = sinr_meas;
	  //TODO: Set the servCellIndex for this report
	  ul_report[j]->serv_cell_index = 0;
	  ul_report[j]->has_serv_cell_index = 1;
	  //Set the list of UL reports of this UE to the full UL report
	  full_ul_report->cqi_meas = ul_report;
	  //Add full UL CQI report to the UE report
	  ue_report[i]->ul_cqi_report = full_ul_report;
	}
      }
    }
    /* Add list of all UE reports to the message */
    stats_reply_msg->ue_report = ue_report;
  }

  /* Allocate memory for list of cell reports */
  if (report_config->nr_cc > 0) {
    cell_report = malloc(sizeof(Protocol__PrpCellStatsReport *) * report_config->nr_cc);
    if (cell_report == NULL)
      goto error;
    // Fill in the Cell reports
    for (i = 0; i < report_config->nr_cc; i++) {
      cell_report[i] = malloc(sizeof(Protocol__PrpCellStatsReport));
646
      if(cell_report[i] == NULL)
647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662
	goto error;
      protocol__prp_cell_stats_report__init(cell_report[i]);
      cell_report[i]->carrier_index = report_config->cc_report_type[i].cc_id;
      cell_report[i]->has_carrier_index = 1;
      cell_report[i]->flags = report_config->cc_report_type[i].cc_report_flags;
      cell_report[i]->has_flags = 1;

      /* Check flag for creation of noise and interference report */
      if(report_config->cc_report_type[i].cc_report_flags & PROTOCOL__PRP_CELL_STATS_TYPE__PRCST_NOISE_INTERFERENCE) {
	// TODO: Fill in the actual noise and interference report for this cell
	Protocol__PrpNoiseInterferenceReport *ni_report;
	ni_report = malloc(sizeof(Protocol__PrpNoiseInterferenceReport));
	if(ni_report == NULL)
	  goto error;
	protocol__prp_noise_interference_report__init(ni_report);
	// Current frame and subframe number
663
	ni_report->sfn_sf = get_sfn_sf(enb_id);
664 665 666 667 668 669 670 671 672 673 674 675 676
	ni_report->has_sfn_sf = 1;
	// Received interference power in dbm
	ni_report->rip = 0;
	ni_report->has_rip = 1;
	// Thermal noise power in dbm
	ni_report->tnp = 0;
	ni_report->has_tnp = 1;
	cell_report[i]->noise_inter_report = ni_report;
      }
    }
    /* Add list of all cell reports to the message */
    stats_reply_msg->cell_report = cell_report;
  }
677

678 679 680 681 682 683 684 685
  *msg = malloc(sizeof(Protocol__ProgranMessage));
  if(*msg == NULL)
    goto error;
  protocol__progran_message__init(*msg);
  (*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REPLY_MSG;
  (*msg)->msg_dir =  PROTOCOL__PROGRAN_DIRECTION__SUCCESSFUL_OUTCOME;
  (*msg)->stats_reply_msg = stats_reply_msg;
  return 0;
686

687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
 error:
  // TODO: Need to make proper error handling
  if (header != NULL)
    free(header);
  if (stats_reply_msg != NULL)
    free(stats_reply_msg);
  if(*msg != NULL)
    free(*msg);
  //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
  return -1;
}

int enb_agent_mac_destroy_stats_reply(Protocol__ProgranMessage *msg) {
  //TODO: Need to deallocate memory for the stats reply message
  if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REPLY_MSG)
    goto error;
  free(msg->stats_reply_msg->header);
  int i, j, k;
705

706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765
  Protocol__PrpStatsReply *reply = msg->stats_reply_msg;
  Protocol__PrpDlCqiReport *dl_report;
  Protocol__PrpUlCqiReport *ul_report;
  Protocol__PrpPagingBufferReport *paging_report;

  // Free the memory for the UE reports
  for (i = 0; i < reply->n_ue_report; i++) {
    free(reply->ue_report[i]->bsr);
    for (j = 0; j < reply->ue_report[i]->n_rlc_report; j++) {
      free(reply->ue_report[i]->rlc_report[j]);
    }
    free(reply->ue_report[i]->rlc_report);
    // If DL CQI report flag was set
    if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_DL_CQI) {
      dl_report = reply->ue_report[i]->dl_cqi_report;
      // Delete all CSI reports
      for (j = 0; j < dl_report->n_csi_report; j++) {
	//Must free memory based on the type of report
	switch(dl_report->csi_report[j]->report_case) {
	case PROTOCOL__PRP_DL_CSI__REPORT_P10CSI:
	  free(dl_report->csi_report[j]->p10csi);
	  break;
	case PROTOCOL__PRP_DL_CSI__REPORT_P11CSI:
	  free(dl_report->csi_report[j]->p11csi->wb_cqi);
	  free(dl_report->csi_report[j]->p11csi);
	  break;
	case PROTOCOL__PRP_DL_CSI__REPORT_P20CSI:
	  free(dl_report->csi_report[j]->p20csi);
	  break;
	case PROTOCOL__PRP_DL_CSI__REPORT_P21CSI:
	  free(dl_report->csi_report[j]->p21csi->wb_cqi);
	  free(dl_report->csi_report[j]->p21csi->sb_cqi);
	  free(dl_report->csi_report[j]->p21csi);
	  break;
	case PROTOCOL__PRP_DL_CSI__REPORT_A12CSI:
	  free(dl_report->csi_report[j]->a12csi->wb_cqi);
	  free(dl_report->csi_report[j]->a12csi->sb_pmi);
	  free(dl_report->csi_report[j]->a12csi);
	  break;
	case PROTOCOL__PRP_DL_CSI__REPORT_A22CSI:
	  free(dl_report->csi_report[j]->a22csi->wb_cqi);
	  free(dl_report->csi_report[j]->a22csi->sb_cqi);
	  free(dl_report->csi_report[j]->a22csi->sb_list);
	  free(dl_report->csi_report[j]->a22csi);
	  break;
	case PROTOCOL__PRP_DL_CSI__REPORT_A20CSI:
	  free(dl_report->csi_report[j]->a20csi->sb_list);
	  free(dl_report->csi_report[j]->a20csi);
	  break;
	case PROTOCOL__PRP_DL_CSI__REPORT_A30CSI:
	  free(dl_report->csi_report[j]->a30csi->sb_cqi);
	  free(dl_report->csi_report[j]->a30csi);
	  break;
	case PROTOCOL__PRP_DL_CSI__REPORT_A31CSI:
	  free(dl_report->csi_report[j]->a31csi->wb_cqi);
	  for (k = 0; k < dl_report->csi_report[j]->a31csi->n_sb_cqi; k++) {
	    free(dl_report->csi_report[j]->a31csi->sb_cqi[k]);
	  }
	  free(dl_report->csi_report[j]->a31csi->sb_cqi);
	  break;
766 767
	}

768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801
	free(dl_report->csi_report[j]);
      }
      free(dl_report->csi_report);
      free(dl_report);
    }
    // If Paging buffer report flag was set
    if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PBS) {
      paging_report = reply->ue_report[i]->pbr;
      // Delete all paging buffer reports
      for (j = 0; j < paging_report->n_paging_info; j++) {
	free(paging_report->paging_info[j]);
      }
      free(paging_report->paging_info);
      free(paging_report);
    }
    // If UL CQI report flag was set
    if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_UL_CQI) {
      ul_report = reply->ue_report[i]->ul_cqi_report;
      for (j = 0; j < ul_report->n_cqi_meas; j++) {
	free(ul_report->cqi_meas[j]->sinr);
	free(ul_report->cqi_meas[j]);
      }
      free(ul_report->cqi_meas);
    }
    free(reply->ue_report[i]);
  }
  free(reply->ue_report);

  // Free memory for all Cell reports
  for (i = 0; i < reply->n_cell_report; i++) {
    free(reply->cell_report[i]->noise_inter_report);
    free(reply->cell_report[i]);
  }
  free(reply->cell_report);
802

803 804 805
  free(reply);
  free(msg);
  return 0;
806

807 808 809 810
 error:
  //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
  return -1;
}
811 812 813 814 815 816 817 818 819 820 821 822 823 824

int enb_agent_mac_sr_info(mid_t mod_id, const void *params, Protocol__ProgranMessage **msg) {
  Protocol__PrpHeader *header;
  int i;
  const int xid = *((int *)params);
  if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_UL_SR_INFO, &header) != 0)
    goto error;

  Protocol__PrpUlSrInfo *ul_sr_info_msg;
  ul_sr_info_msg = malloc(sizeof(Protocol__PrpUlSrInfo));
  if (ul_sr_info_msg == NULL) {
    goto error;
  }
  protocol__prp_ul_sr_info__init(ul_sr_info_msg);
825

826 827 828 829 830 831 832 833 834 835 836 837 838 839
  ul_sr_info_msg->header = header;
  ul_sr_info_msg->has_sfn_sf = 1;
  ul_sr_info_msg->sfn_sf = get_sfn_sf(mod_id);
  /*TODO: Set the number of UEs that sent an SR */
  ul_sr_info_msg->n_rnti = 1;
  ul_sr_info_msg->rnti = (uint32_t *) malloc(ul_sr_info_msg->n_rnti * sizeof(uint32_t));

  if(ul_sr_info_msg->rnti == NULL) {
    goto error;
  }
  /*TODO:Set the rnti of the UEs that sent an SR */
  for (i = 0; i < ul_sr_info_msg->n_rnti; i++) {
    ul_sr_info_msg->rnti[i] = 1;
  }
840

841 842 843 844 845 846 847 848
  *msg = malloc(sizeof(Protocol__ProgranMessage));
  if(*msg == NULL)
    goto error;
  protocol__progran_message__init(*msg);
  (*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_UL_SR_INFO_MSG;
  (*msg)->msg_dir =  PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
  (*msg)->ul_sr_info_msg = ul_sr_info_msg;
  return 0;
849

850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878
 error:
  // TODO: Need to make proper error handling
  if (header != NULL)
    free(header);
  if (ul_sr_info_msg != NULL) {
    free(ul_sr_info_msg->rnti);
    free(ul_sr_info_msg);
  }
  if(*msg != NULL)
    free(*msg);
  //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
  return -1;
}

int enb_agent_mac_destroy_sr_info(Protocol__ProgranMessage *msg) {
   if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_UL_SR_INFO_MSG)
     goto error;

   free(msg->ul_sr_info_msg->header);
   free(msg->ul_sr_info_msg->rnti);
   free(msg->ul_sr_info_msg);
   free(msg);
   return 0;

 error:
   //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
   return -1;
}

879
int enb_agent_mac_sf_trigger(mid_t mod_id, const void *params, Protocol__ProgranMessage **msg) {
880 881 882
  Protocol__PrpHeader *header;
  int i,j;
  const int xid = *((int *)params);
883
  if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_SF_TRIGGER, &header) != 0)
884 885
    goto error;

886 887 888
  Protocol__PrpSfTrigger *sf_trigger_msg;
  sf_trigger_msg = malloc(sizeof(Protocol__PrpSfTrigger));
  if (sf_trigger_msg == NULL) {
889 890
    goto error;
  }
891
  protocol__prp_sf_trigger__init(sf_trigger_msg);
892

893 894 895
  sf_trigger_msg->header = header;
  sf_trigger_msg->has_sfn_sf = 1;
  sf_trigger_msg->sfn_sf = get_sfn_sf(mod_id);
896 897 898 899

  /*TODO: Fill in the number of dl HARQ related info, based on the number of currently
   *transmitting UEs
   */
900
  sf_trigger_msg->n_dl_info = get_num_ues(mod_id);
901

902 903
  Protocol__PrpDlInfo **dl_info = NULL;

904 905
  if (sf_trigger_msg->n_dl_info > 0) {
    dl_info = malloc(sizeof(Protocol__PrpDlInfo *) * sf_trigger_msg->n_dl_info);
906 907 908
    if(dl_info == NULL)
      goto error;
    //Fill the status of the current HARQ process for each UE
909
    for(i = 0; i++; i < sf_trigger_msg->n_dl_info) {
910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929
      dl_info[i] = malloc(sizeof(Protocol__PrpDlInfo));
      if(dl_info[i] == NULL)
	goto error;
      protocol__prp_dl_info__init(dl_info[i]);
      dl_info[i]->rnti = get_ue_crnti(mod_id, i);
      dl_info[i]->has_rnti = 1;
      /*TODO: fill in the right id of this round's HARQ process for this UE*/
      dl_info[i]->harq_process_id = 1;
      dl_info[i]->has_harq_process_id = 1;
      /*TODO: fill in the status of the HARQ process (2 TBs)*/
      dl_info[i]->n_harq_status = 2;
      dl_info[i]->harq_status = malloc(sizeof(uint32_t) * dl_info[i]->n_harq_status);
      for (j = 0; j < dl_info[j]->n_harq_status; j++) {
	dl_info[i]->harq_status[j] = PROTOCOL__PRP_HARQ_STATUS__PRHS_ACK;
      }
      /*TODO: fill in the serving cell index for this UE */
      dl_info[i]->serv_cell_index = 0;
      dl_info[i]->has_serv_cell_index = 1;
    }
  }
930

931
  sf_trigger_msg->dl_info = dl_info;
932

933
    /*TODO: Fill in the number of UL reception status related info, based on the number of currently
934 935
   *transmitting UEs
   */
936
  sf_trigger_msg->n_ul_info = get_num_ues(mod_id);
937

938 939
  Protocol__PrpUlInfo **ul_info = NULL;

940 941
  if (sf_trigger_msg->n_ul_info > 0) {
    ul_info = malloc(sizeof(Protocol__PrpUlInfo *) * sf_trigger_msg->n_ul_info);
942 943 944
    if(ul_info == NULL)
      goto error;
    //Fill the reception info for each transmitting UE
945
    for(i = 0; i++; i < sf_trigger_msg->n_ul_info) {
946 947 948 949 950 951 952 953 954
      ul_info[i] = malloc(sizeof(Protocol__PrpUlInfo));
      if(ul_info[i] == NULL)
	goto error;
      protocol__prp_ul_info__init(ul_info[i]);
      ul_info[i]->rnti = get_ue_crnti(mod_id, i);
      ul_info[i]->has_rnti = 1;
      /*TODO: fill in the Tx power control command for this UE (if available)*/
      ul_info[i]->tpc = 1;
      ul_info[i]->has_tpc = 0;
955
      /*TODO: fill in the amount of data in bytes in the MAC SDU received in this subframe for the
956 957 958 959 960 961 962 963 964 965 966 967 968 969
	given logical channel*/
      ul_info[i]->n_ul_reception = 11;
      ul_info[i]->ul_reception = malloc(sizeof(uint32_t) * ul_info[i]->n_ul_reception);
      for (j = 0; j < ul_info[j]->n_ul_reception; j++) {
	ul_info[i]->ul_reception[j] = 100;
      }
      /*TODO: Fill in the reception status for each UEs data*/
      ul_info[i]->reception_status = PROTOCOL__PRP_RECEPTION_STATUS__PRRS_OK;
      ul_info[i]->has_reception_status = 1;
      /*TODO: fill in the serving cell index for this UE */
      ul_info[i]->serv_cell_index = 0;
      ul_info[i]->has_serv_cell_index = 1;
    }
  }
970

971 972
  sf_trigger_msg->ul_info = ul_info;

973 974 975 976
  *msg = malloc(sizeof(Protocol__ProgranMessage));
  if(*msg == NULL)
    goto error;
  protocol__progran_message__init(*msg);
977
  (*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_SF_TRIGGER_MSG;
978
  (*msg)->msg_dir =  PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
979
  (*msg)->sf_trigger_msg = sf_trigger_msg;
980
  return 0;
981

982 983 984
 error:
  if (header != NULL)
    free(header);
985 986 987 988 989 990 991
  if (sf_trigger_msg != NULL) {
    for (i = 0; i < sf_trigger_msg->n_dl_info; i++) {
      free(sf_trigger_msg->dl_info[i]->harq_status);
    }
    free(sf_trigger_msg->dl_info);
    for (i = 0; i < sf_trigger_msg->n_ul_info; i++) {
      free(sf_trigger_msg->ul_info[i]->reception_status);
992
    }
993 994
    free(sf_trigger_msg->ul_info);
    free(sf_trigger_msg);
995 996 997 998 999 1000 1001
  }
  if(*msg != NULL)
    free(*msg);
  //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
  return -1;
}

1002
int enb_agent_mac_destroy_sf_trigger(Protocol__ProgranMessage *msg) {
1003
  int i;
1004
  if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_SF_TRIGGER_MSG)
1005
    goto error;
1006

1007 1008 1009
  free(msg->sf_trigger_msg->header);
  for (i = 0; i < msg->sf_trigger_msg->n_dl_info; i++) {
    free(msg->sf_trigger_msg->dl_info[i]->harq_status);
1010
  }
1011 1012 1013 1014 1015 1016
  free(msg->sf_trigger_msg->dl_info);
  for (i = 0; i < msg->sf_trigger_msg->n_ul_info; i++) {
    free(msg->sf_trigger_msg->ul_info[i]->reception_status);
  }
  free(msg->sf_trigger_msg->ul_info);
  free(msg->sf_trigger_msg);
1017
  free(msg);
1018

1019 1020 1021 1022 1023 1024 1025
  return 0;

 error:
  //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
  return -1;
}

1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038
int enb_agent_mac_create_empty_dl_config(mid_t mod_id, Protocol__ProgranMessage **msg) {

  int xid = 0;
  Protocol__PrpHeader *header;
  if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_DL_MAC_CONFIG, &header) != 0)
    goto error;

  Protocol__PrpDlMacConfig *dl_mac_config_msg;
  dl_mac_config_msg = malloc(sizeof(Protocol__PrpDlMacConfig));
  if (dl_mac_config_msg == NULL) {
    goto error;
  }
  protocol__prp_dl_mac_config__init(dl_mac_config_msg);
1039

1040 1041 1042
  dl_mac_config_msg->header = header;
  dl_mac_config_msg->has_sfn_sf = 1;
  dl_mac_config_msg->sfn_sf = get_sfn_sf(mod_id);
1043

1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
  *msg = malloc(sizeof(Protocol__ProgranMessage));
  if(*msg == NULL)
    goto error;
  protocol__progran_message__init(*msg);
  (*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_DL_MAC_CONFIG_MSG;
  (*msg)->msg_dir =  PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
  (*msg)->dl_mac_config_msg = dl_mac_config_msg;

  return 0;

 error:
  return -1;
}

int enb_agent_mac_destroy_dl_config(Protocol__ProgranMessage *msg) {
1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084
  int i,j, k;
  if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_DL_MAC_CONFIG_MSG)
    goto error;

  Protocol__PrpDlDci *dl_dci;

  free(msg->dl_mac_config_msg->header);
  for (i = 0; i < msg->dl_mac_config_msg->n_dl_ue_data; i++) {
    free(msg->dl_mac_config_msg->dl_ue_data[i]->ce_bitmap);
    for (j = 0; j < msg->dl_mac_config_msg->dl_ue_data[i]->n_rlc_pdu; j++) {
      for (k = 0; k <  msg->dl_mac_config_msg->dl_ue_data[i]->rlc_pdu[j]->n_rlc_pdu_tb; k++) {
	free(msg->dl_mac_config_msg->dl_ue_data[i]->rlc_pdu[j]->rlc_pdu_tb[k]);
      }
      free(msg->dl_mac_config_msg->dl_ue_data[i]->rlc_pdu[j]->rlc_pdu_tb);
      free(msg->dl_mac_config_msg->dl_ue_data[i]->rlc_pdu[j]);
    }
    free(msg->dl_mac_config_msg->dl_ue_data[i]->rlc_pdu);
    dl_dci = msg->dl_mac_config_msg->dl_ue_data[i]->dl_dci;
    free(dl_dci->tbs_size);
    free(dl_dci->mcs);
    free(dl_dci->ndi);
    free(dl_dci->rv);
    free(dl_dci);
    free(msg->dl_mac_config_msg->dl_ue_data[i]);
  }
  free(msg->dl_mac_config_msg->dl_ue_data);
1085

1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115
  for (i = 0; i <  msg->dl_mac_config_msg->n_dl_rar; i++) {
    dl_dci = msg->dl_mac_config_msg->dl_rar[i]->rar_dci;
    free(dl_dci->tbs_size);
    free(dl_dci->mcs);
    free(dl_dci->ndi);
    free(dl_dci->rv);
    free(dl_dci);
    free(msg->dl_mac_config_msg->dl_rar[i]);
  }
  free(msg->dl_mac_config_msg->dl_rar);

  for (i = 0; i < msg->dl_mac_config_msg->n_dl_broadcast; i++) {
    dl_dci = msg->dl_mac_config_msg->dl_broadcast[i]->broad_dci;
    free(dl_dci->tbs_size);
    free(dl_dci->mcs);
    free(dl_dci->ndi);
    free(dl_dci->rv);
    free(dl_dci);
    free(msg->dl_mac_config_msg->dl_broadcast[i]);
  }
  free(msg->dl_mac_config_msg->dl_broadcast);

    for ( i = 0; i < msg->dl_mac_config_msg->n_ofdm_sym; i++) {
    free(msg->dl_mac_config_msg->ofdm_sym[i]);
  }
  free(msg->dl_mac_config_msg->ofdm_sym);

  return 0;

 error:
1116 1117 1118
  return -1;
}

1119 1120 1121 1122 1123
/***********************************************
 * eNB agent - technology mac API implementation
 ***********************************************/

void enb_agent_send_sr_info(mid_t mod_id) {
1124 1125 1126 1127 1128 1129
  int size;
  Protocol__ProgranMessage *msg;
  void *data;
  int priority;
  err_code_t err_code;

1130 1131
  int xid = 0;

1132
  /*TODO: Must use a proper xid*/
1133
  err_code = enb_agent_mac_sr_info(mod_id, (void *) &xid, &msg);
1134 1135 1136 1137 1138 1139
  if (err_code < 0) {
    goto error;
  }

  if (msg != NULL){
    data=enb_agent_pack_message(msg, &size);
1140 1141
    /*Send sr info using the MAC channel of the eNB*/
    if (enb_agent_msg_send(mod_id, ENB_AGENT_MAC, data, size, priority)) {
1142 1143 1144
      err_code = PROTOCOL__PROGRAN_ERR__MSG_ENQUEUING;
      goto error;
    }
1145

1146
    LOG_D(ENB_AGENT,"sent message with size %d\n", size);
1147
    return;
1148 1149 1150 1151 1152
  }
 error:
  LOG_D(ENB_AGENT, "Could not send sr message\n");
}

1153
void enb_agent_send_sf_trigger(mid_t mod_id) {
1154 1155 1156 1157 1158 1159
  int size;
  Protocol__ProgranMessage *msg;
  void *data;
  int priority;
  err_code_t err_code;

1160
  int xid = 0;
1161

1162
  /*TODO: Must use a proper xid*/
1163
  err_code = enb_agent_mac_sf_trigger(mod_id, (void *) &xid, &msg);
1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176
  if (err_code < 0) {
    goto error;
  }

  if (msg != NULL){
    data=enb_agent_pack_message(msg, &size);
    /*Send sr info using the MAC channel of the eNB*/
    if (enb_agent_msg_send(mod_id, ENB_AGENT_MAC, data, size, priority)) {
      err_code = PROTOCOL__PROGRAN_ERR__MSG_ENQUEUING;
      goto error;
    }

    LOG_D(ENB_AGENT,"sent message with size %d\n", size);
1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189
    return;
  }
 error:
  LOG_D(ENB_AGENT, "Could not send sf trigger message\n");
}

void enb_agent_send_update_mac_stats(mid_t mod_id) {

  Protocol__ProgranMessage *current_report, *msg;
  void *data;
  int size;
  err_code_t err_code;
  int priority;
1190

1191 1192 1193 1194 1195
  mac_stats_updates_context_t stats_context = mac_stats_context[mod_id];

  if (pthread_mutex_lock(mac_stats_context[mod_id].mutex)) {
    goto error;
  }
1196

1197 1198 1199 1200 1201 1202
  /*Create a fresh report with the required flags*/
  err_code = enb_agent_mac_handle_stats(mod_id, (void *) mac_stats_context[mod_id].stats_req, &current_report);
  if (err_code < 0) {
    goto error;
  }

1203
  /*TODO:Check if a previous reports exists and if yes, generate a report
1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214
   *that is the diff between the old and the new report,
   *respecting the thresholds. Otherwise send the new report*/
  if (mac_stats_context[mod_id].prev_stats_reply != NULL) {

    msg = enb_agent_generate_diff_mac_stats_report(current_report, mac_stats_context[mod_id].prev_stats_reply);

    /*Destroy the old stats*/
     enb_agent_destroy_progran_message(mac_stats_context[mod_id].prev_stats_reply);
  }
  /*Use the current report for future comparissons*/
  mac_stats_context[mod_id].prev_stats_reply = current_report;
1215 1216


1217 1218 1219
  if (pthread_mutex_unlock(mac_stats_context[mod_id].mutex)) {
    goto error;
  }
1220

1221 1222 1223 1224 1225 1226 1227 1228 1229 1230
  if (msg != NULL){
    data=enb_agent_pack_message(msg, &size);
    /*Send any stats updates using the MAC channel of the eNB*/
    if (enb_agent_msg_send(mod_id, ENB_AGENT_MAC, data, size, priority)) {
      err_code = PROTOCOL__PROGRAN_ERR__MSG_ENQUEUING;
      goto error;
    }

    LOG_D(ENB_AGENT,"sent message with size %d\n", size);
    return;
1231 1232
  }
 error:
1233
  LOG_D(ENB_AGENT, "Could not send sf trigger message\n");
1234 1235
}

1236
int enb_agent_register_mac_xface(mid_t mod_id, AGENT_MAC_xface *xface) {
1237
  if (mac_agent_registered[mod_id]) {
1238 1239 1240 1241
    LOG_E(MAC, "MAC agent for eNB %d is already registered\n", mod_id);
    return -1;
  }

1242
  //xface->agent_ctxt = &shared_ctxt[mod_id];
1243
  xface->enb_agent_send_sr_info = enb_agent_send_sr_info;
1244
  xface->enb_agent_send_sf_trigger = enb_agent_send_sf_trigger;
1245
  xface->enb_agent_send_update_mac_stats = enb_agent_send_update_mac_stats;
1246
  xface->enb_agent_schedule_ue_spec = schedule_ue_spec_default;
1247

1248

1249
  mac_agent_registered[mod_id] = 1;
1250
  agent_mac_xface[mod_id] = xface;
1251 1252

  return 0;
1253 1254 1255
}

int enb_agent_unregister_mac_xface(mid_t mod_id, AGENT_MAC_xface *xface) {
1256

1257
  //xface->agent_ctxt = NULL;
1258
  xface->enb_agent_send_sr_info = NULL;
1259
  xface->enb_agent_send_sf_trigger = NULL;
1260
  xface->enb_agent_send_update_mac_stats = NULL;
1261
  xface->enb_agent_schedule_ue_spec = NULL;
1262

1263 1264
  mac_agent_registered[mod_id] = 0;
  agent_mac_xface[mod_id] = NULL;
1265

1266 1267 1268 1269 1270 1271 1272 1273 1274
  return 0;
}


/******************************************************
 *Implementations of enb_agent_mac_internal.h functions
 ******************************************************/

err_code_t enb_agent_init_cont_mac_stats_update(mid_t mod_id) {
1275

1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286
  /*Initialize the Mac stats update structure*/
  /*Initially the continuous update is set to false*/
  mac_stats_context[mod_id].cont_update = 0;
  mac_stats_context[mod_id].is_initialized = 1;
  mac_stats_context[mod_id].stats_req = NULL;
  mac_stats_context[mod_id].prev_stats_reply = NULL;
  mac_stats_context[mod_id].mutex = calloc(1, sizeof(pthread_mutex_t));
  if (mac_stats_context[mod_id].mutex == NULL)
    goto error;
  if (pthread_mutex_init(mac_stats_context[mod_id].mutex, NULL))
    goto error;;
1287

1288
  return 0;
1289

1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300
 error:
  return -1;
}

err_code_t enb_agent_destroy_cont_mac_stats_update(mid_t mod_id) {
  /*Disable the continuous updates for the MAC*/
  mac_stats_context[mod_id].cont_update = 0;
  mac_stats_context[mod_id].is_initialized = 0;
  enb_agent_destroy_progran_message(mac_stats_context[mod_id].stats_req);
  enb_agent_destroy_progran_message(mac_stats_context[mod_id].prev_stats_reply);
  free(mac_stats_context[mod_id].mutex);
1301

1302 1303 1304
  mac_agent_registered[mod_id] = NULL;
  return 1;
}
1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318


err_code_t enb_agent_enable_cont_mac_stats_update(mid_t mod_id,
						  xid_t xid, stats_request_config_t *stats_req) {
  /*Enable the continuous updates for the MAC*/
  if (pthread_mutex_lock(mac_stats_context[mod_id].mutex)) {
    goto error;
  }

  Protocol__ProgranMessage *req_msg;

  enb_agent_mac_stats_request(mod_id, xid, stats_req, &req_msg);
  mac_stats_context[mod_id].stats_req = req_msg;
  mac_stats_context[mod_id].prev_stats_reply = NULL;
1319

1320 1321
  mac_stats_context[mod_id].cont_update = 1;
  mac_stats_context[mod_id].xid = xid;
1322

1323 1324 1325 1326
  if (pthread_mutex_unlock(mac_stats_context[mod_id].mutex)) {
    goto error;
  }
  return 0;
1327

1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353
 error:
  LOG_E(ENB_AGENT, "mac_stats_context for eNB %d is not initialized\n", mod_id);
  return -1;
}

err_code_t enb_agent_disable_cont_mac_stats_update(mid_t mod_id) {
  /*Disable the continuous updates for the MAC*/
  if (pthread_mutex_lock(mac_stats_context[mod_id].mutex)) {
    goto error;
  }
  mac_stats_context[mod_id].cont_update = 0;
  mac_stats_context[mod_id].xid = 0;
  if (mac_stats_context[mod_id].stats_req != NULL) {
    enb_agent_destroy_progran_message(mac_stats_context[mod_id].stats_req);
  }
  if (mac_stats_context[mod_id].prev_stats_reply != NULL) {
    enb_agent_destroy_progran_message(mac_stats_context[mod_id].prev_stats_reply);
  }
  if (pthread_mutex_unlock(mac_stats_context[mod_id].mutex)) {
    goto error;
  }
  return 0;

 error:
  LOG_E(ENB_AGENT, "mac_stats_context for eNB %d is not initialized\n", mod_id);
  return -1;
1354

1355
}