pdcp.c 53.9 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
/*******************************************************************************

  Eurecom OpenAirInterface
  Copyright(c) 1999 - 2011 Eurecom

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope 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
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information
  Openair Admin: openair_admin@eurecom.fr
  Openair Tech : openair_tech@eurecom.fr
  Forums       : http://forums.eurecom.fsr/openairinterface
  Address      : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France

gauthier's avatar
gauthier committed
28
 *******************************************************************************/
29 30 31 32 33 34 35 36 37 38 39 40

/*! \file pdcp.c
 * \brief pdcp interface with RLC
 * \author  Lionel GAUTHIER and Navid Nikaein
 * \date 2009-2012
 * \version 1.0
 */

#define PDCP_C
#ifndef USER_MODE
#include <rtai_fifos.h>
#endif
41
#include "assertions.h"
42 43 44 45 46 47 48 49 50 51 52 53 54 55
#include "pdcp.h"
#include "pdcp_util.h"
#include "pdcp_sequence_manager.h"
#include "LAYER2/RLC/rlc.h"
#include "LAYER2/MAC/extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#include "pdcp_primitives.h"
#include "OCG.h"
#include "OCG_extern.h"
#include "UTIL/LOG/log.h"
#include <inttypes.h>
#include "platform_constants.h"
#include "UTIL/LOG/vcd_signal_dumper.h"

56 57 58 59
#if defined(ENABLE_SECURITY)
# include "UTIL/OSA/osa_defs.h"
#endif

60 61 62 63
#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif

64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
#ifndef OAI_EMU
extern int otg_enabled;
#endif

//extern char *packet_gen(int src, int dst, int ctime, int *pkt_size);
extern int otg_rx_pkt( int src, int dst, int ctime, char *buffer_tx, unsigned int size);

//-----------------------------------------------------------------------------
/*
 * If PDCP_UNIT_TEST is set here then data flow between PDCP and RLC is broken
 * and PDCP has no longer anything to do with RLC. In this case, after it's handed
 * an SDU it appends PDCP header and returns (by filling in incoming pointer parameters)
 * this mem_block_t to be dissected for testing purposes. For further details see test
 * code at targets/TEST/PDCP/test_pdcp.c:test_pdcp_data_req()
 */
79 80 81 82 83 84 85 86 87 88 89
boolean_t pdcp_data_req(
    module_id_t    enb_mod_idP,
    module_id_t    ue_mod_idP,
    frame_t        frameP,
    eNB_flag_t     enb_flagP,
    rb_id_t        rb_idP,
    mui_t          muiP,
    confirm_t      confirmP,
    sdu_size_t     sdu_buffer_sizeP,
    unsigned char *sdu_buffer_pP,
    pdcp_transmission_mode_t modeP)
90 91
{
  //-----------------------------------------------------------------------------
gauthier's avatar
gauthier committed
92
  pdcp_t            *pdcp_p          = NULL;
93 94 95 96 97
  uint8_t            i               = 0;
  uint8_t            pdcp_header_len = 0;
  uint8_t            pdcp_tailer_len = 0;
  uint16_t           pdcp_pdu_size   = 0;
  uint16_t           current_sn      = 0;
gauthier's avatar
gauthier committed
98 99
  mem_block_t       *pdcp_pdu_p      = NULL;
  rlc_op_status_t    rlc_status;
100
  boolean_t          ret             = TRUE;
gauthier's avatar
gauthier committed
101 102 103

  AssertError (enb_mod_idP < NUMBER_OF_eNB_MAX, return FALSE, "eNB id is too high (%u/%d) %u %u!\n", enb_mod_idP, NUMBER_OF_eNB_MAX, ue_mod_idP, rb_idP);
  AssertError (ue_mod_idP < NUMBER_OF_UE_MAX, return FALSE, "UE id is too high (%u/%d) %u %u!\n", ue_mod_idP, NUMBER_OF_UE_MAX, enb_mod_idP, rb_idP);
104 105 106 107 108
  if (modeP == PDCP_TRANSMISSION_MODE_TRANSPARENT) {
      AssertError (rb_idP < NB_RB_MBMS_MAX, return FALSE, "RB id is too high (%u/%d) %u %u!\n", rb_idP, NB_RB_MBMS_MAX, ue_mod_idP, enb_mod_idP);
  } else {
      AssertError (rb_idP < NB_RB_MAX, return FALSE, "RB id is too high (%u/%d) %u %u!\n", rb_idP, NB_RB_MAX, ue_mod_idP, enb_mod_idP);
  }
gauthier's avatar
gauthier committed
109

110
  if (enb_flagP == ENB_FLAG_NO) {
gauthier's avatar
gauthier committed
111
      pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_idP];
112
  } else {
gauthier's avatar
gauthier committed
113
      pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_idP];
114
  }
115

116 117
  if ((pdcp_p->instanciated_instance == FALSE) && (modeP != PDCP_TRANSMISSION_MODE_TRANSPARENT)) {
      if (enb_flagP == ENB_FLAG_NO) {
gauthier's avatar
gauthier committed
118 119 120 121 122 123 124
          LOG_W(PDCP, "[UE %d] Instance is not configured for eNB %d, rb_id %d Ignoring SDU...\n",
              ue_mod_idP, enb_mod_idP, rb_idP);
      } else {
          LOG_W(PDCP, "[eNB %d] Instance is not configured for UE %d, rb_id %d Ignoring SDU...\n",
              enb_mod_idP, ue_mod_idP, rb_idP);
      }
      return FALSE;
125
  }
gauthier's avatar
gauthier committed
126 127 128
  if (sdu_buffer_sizeP == 0) {
      LOG_W(PDCP, "Handed SDU is of size 0! Ignoring...\n");
      return FALSE;
129 130 131 132 133
  }
  /*
   * XXX MAX_IP_PACKET_SIZE is 4096, shouldn't this be MAX SDU size, which is 8188 bytes?
   */

gauthier's avatar
gauthier committed
134 135 136 137 138
  if (sdu_buffer_sizeP > MAX_IP_PACKET_SIZE) {
      LOG_E(PDCP, "Requested SDU size (%d) is bigger than that can be handled by PDCP (%u)!\n",
          sdu_buffer_sizeP, MAX_IP_PACKET_SIZE);
      // XXX What does following call do?
      mac_xface->macphy_exit("PDCP sdu buffer size > MAX_IP_PACKET_SIZE");
139
  }
140

141
  if (enb_flagP == ENB_FLAG_NO)
142
    start_meas(&eNB_pdcp_stats[enb_mod_idP].data_req);
143
  else
144
    start_meas(&UE_pdcp_stats[ue_mod_idP].data_req);
145 146

  // PDCP transparent mode for MBMS traffic
147

148
  if (modeP == PDCP_TRANSMISSION_MODE_TRANSPARENT) {
gauthier's avatar
gauthier committed
149 150 151 152
      LOG_D(PDCP, " [TM] Asking for a new mem_block of size %d\n",sdu_buffer_sizeP);
      pdcp_pdu_p = get_free_mem_block(sdu_buffer_sizeP);
      if (pdcp_pdu_p != NULL) {
          memcpy(&pdcp_pdu_p->data[0], sdu_buffer_pP, sdu_buffer_sizeP);
153 154 155 156
          rlc_util_print_hex_octets(PDCP,
                                    (unsigned char*)&pdcp_pdu_p->data[0],
                                    sdu_buffer_sizeP);

gauthier's avatar
gauthier committed
157
          rlc_status = rlc_data_req(enb_mod_idP, ue_mod_idP, frameP, enb_flagP, MBMS_FLAG_YES, rb_idP, muiP, confirmP, sdu_buffer_sizeP, pdcp_pdu_p);
gauthier's avatar
gauthier committed
158 159
      } else {
        rlc_status = RLC_OP_STATUS_OUT_OF_RESSOURCES;
160 161 162 163 164 165
	LOG_W(PDCP,"[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u] PDCP_DATA_REQ SDU DROPPED, OUT OF MEMORY \n",
	      frameP,
	      (enb_flagP) ? "eNB" : "UE",
	      enb_mod_idP,
	      ue_mod_idP,
	      rb_idP);
gauthier's avatar
gauthier committed
166 167 168 169 170 171 172 173 174
#if defined(STOP_ON_IP_TRAFFIC_OVERLOAD)
        AssertFatal(0, "[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u] PDCP_DATA_REQ SDU DROPPED, OUT OF MEMORY \n",
            frameP,
            (enb_flagP) ? "eNB" : "UE",
            enb_mod_idP,
            ue_mod_idP,
            rb_idP);
#endif
      }
175
  } else {
gauthier's avatar
gauthier committed
176 177 178 179
      // calculate the pdcp header and trailer size
      if (rb_idP < DTCH) {
          pdcp_header_len = PDCP_CONTROL_PLANE_DATA_PDU_SN_SIZE;
          pdcp_tailer_len = PDCP_CONTROL_PLANE_DATA_PDU_MAC_I_SIZE;
180
      } else {
gauthier's avatar
gauthier committed
181 182
          pdcp_header_len = PDCP_USER_PLANE_DATA_PDU_LONG_SN_HEADER_SIZE;
          pdcp_tailer_len = 0;
183
      }
gauthier's avatar
gauthier committed
184 185 186 187 188 189 190 191 192 193 194
      pdcp_pdu_size = sdu_buffer_sizeP + pdcp_header_len + pdcp_tailer_len;

      LOG_I(PDCP, "Data request notification for PDCP entity %s enb id %u ue_id %u and radio bearer ID %d pdu size %d (header%d, trailer%d)\n",
          (enb_flagP) ? "eNB" : "UE",
              enb_mod_idP,
              ue_mod_idP,
              rb_idP,
              pdcp_pdu_size,
              pdcp_header_len,
              pdcp_tailer_len);

195
      /*
gauthier's avatar
gauthier committed
196
       * Allocate a new block for the new PDU (i.e. PDU header and SDU payload)
197
       */
gauthier's avatar
gauthier committed
198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214
      LOG_D(PDCP, "Asking for a new mem_block of size %d\n", pdcp_pdu_size);
      pdcp_pdu_p = get_free_mem_block(pdcp_pdu_size);

      if (pdcp_pdu_p != NULL) {
          /*
           * Create a Data PDU with header and append data
           *
           * Place User Plane PDCP Data PDU header first
           */

          if ((rb_idP % NB_RB_MAX) < DTCH) { // this Control plane PDCP Data PDU
              pdcp_control_plane_data_pdu_header pdu_header;
              pdu_header.sn = pdcp_get_next_tx_seq_number(pdcp_p);
              current_sn = pdu_header.sn;
              memset(&pdu_header.mac_i[0],0,PDCP_CONTROL_PLANE_DATA_PDU_MAC_I_SIZE);
              if (pdcp_serialize_control_plane_data_pdu_with_SRB_sn_buffer((unsigned char*)pdcp_pdu_p->data, &pdu_header) == FALSE) {
                  LOG_E(PDCP, "Cannot fill PDU buffer with relevant header fields!\n");
gauthier's avatar
gauthier committed
215 216 217 218 219
                  if (enb_flagP == ENB_FLAG_NO)
                    stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_req);
                  else
                    stop_meas(&UE_pdcp_stats[ue_mod_idP].data_req);
                  return FALSE;
gauthier's avatar
gauthier committed
220 221 222
              }
          } else {
              pdcp_user_plane_data_pdu_header_with_long_sn pdu_header;
223
              pdu_header.dc = (modeP == PDCP_TRANSMISSION_MODE_DATA) ? PDCP_DATA_PDU_BIT_SET :  PDCP_CONTROL_PDU_BIT_SET;
gauthier's avatar
gauthier committed
224 225 226 227
              pdu_header.sn = pdcp_get_next_tx_seq_number(pdcp_p);
              current_sn = pdu_header.sn ;
              if (pdcp_serialize_user_plane_data_pdu_with_long_sn_buffer((unsigned char*)pdcp_pdu_p->data, &pdu_header) == FALSE) {
                  LOG_E(PDCP, "Cannot fill PDU buffer with relevant header fields!\n");
gauthier's avatar
gauthier committed
228 229 230 231 232
                  if (enb_flagP == ENB_FLAG_NO)
                    stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_req);
                  else
                    stop_meas(&UE_pdcp_stats[ue_mod_idP].data_req);
                  return FALSE;
gauthier's avatar
gauthier committed
233 234 235 236 237 238 239 240 241 242
              }
          }
          /*
           * Validate incoming sequence number, there might be a problem with PDCP initialization
           */
          if (current_sn > pdcp_calculate_max_seq_num_for_given_size(pdcp_p->seq_num_size)) {
              LOG_E(PDCP, "Generated sequence number (%lu) is greater than a sequence number could ever be!\n", current_sn);
              LOG_E(PDCP, "There must be a problem with PDCP initialization, ignoring this PDU...\n");

              free_mem_block(pdcp_pdu_p);
gauthier's avatar
gauthier committed
243 244 245 246
              if (enb_flagP == ENB_FLAG_NO)
                stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_req);
              else
                stop_meas(&UE_pdcp_stats[ue_mod_idP].data_req);
gauthier's avatar
gauthier committed
247 248
              return FALSE;
          }
249

gauthier's avatar
gauthier committed
250
          LOG_D(PDCP, "Sequence number %d is assigned to current PDU\n", current_sn);
251

gauthier's avatar
gauthier committed
252 253
          /* Then append data... */
          memcpy(&pdcp_pdu_p->data[pdcp_header_len], sdu_buffer_pP, sdu_buffer_sizeP);
254

gauthier's avatar
gauthier committed
255 256 257 258 259
          //For control plane data that are not integrity protected,
          // the MAC-I field is still present and should be padded with padding bits set to 0.
          // NOTE: user-plane data are never integrity protected
          for (i=0;i<pdcp_tailer_len;i++)
            pdcp_pdu_p->data[pdcp_header_len + sdu_buffer_sizeP + i] = 0x00;// pdu_header.mac_i[i];
260 261

#if defined(ENABLE_SECURITY)
gauthier's avatar
gauthier committed
262 263 264 265 266 267 268
          if ((pdcp->security_activated != 0) &&
              ((pdcp->cipheringAlgorithm) != 0) &&
              ((pdcp->integrityProtAlgorithm) != 0)) {
              pdcp_apply_security(pdcp, rb_id % NB_RB_MAX,
                  pdcp_header_len, current_sn, pdcp_pdu->data,
                  sdu_buffer_size);
          }
269 270
#endif

gauthier's avatar
gauthier committed
271 272 273 274 275 276 277
          /* Print octets of outgoing data in hexadecimal form */
          LOG_D(PDCP, "Following content with size %d will be sent over RLC (PDCP PDU header is the first two bytes)\n",
              pdcp_pdu_size);
          //util_print_hex_octets(PDCP, (unsigned char*)pdcp_pdu_p->data, pdcp_pdu_size);
          //util_flush_hex_octets(PDCP, (unsigned char*)pdcp_pdu->data, pdcp_pdu_size);
      } else {
          LOG_E(PDCP, "Cannot create a mem_block for a PDU!\n");
278 279 280 281
          if (enb_flagP == ENB_FLAG_NO)
              stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_req);
          else
              stop_meas(&UE_pdcp_stats[ue_mod_idP].data_req);
gauthier's avatar
gauthier committed
282 283 284 285 286 287 288 289 290 291 292 293 294 295
#if defined(STOP_ON_IP_TRAFFIC_OVERLOAD)
        AssertFatal(0, "[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u] PDCP_DATA_REQ SDU DROPPED, OUT OF MEMORY \n",
            frameP,
            (enb_flagP) ? "eNB" : "UE",
            enb_mod_idP,
            ue_mod_idP,
            rb_idP);
#endif
          return FALSE;
      }
      /*
       * Ask sublayer to transmit data and check return value
       * to see if RLC succeeded
       */
296
      rlc_status = rlc_data_req(enb_mod_idP, ue_mod_idP, frameP, enb_flagP, MBMS_FLAG_NO, rb_idP, muiP, confirmP, pdcp_pdu_size, pdcp_pdu_p);
297 298 299 300
  }
  switch (rlc_status) {
  case RLC_OP_STATUS_OK:
    LOG_D(PDCP, "Data sending request over RLC succeeded!\n");
301
    ret=TRUE;
302 303 304 305
    break;

  case RLC_OP_STATUS_BAD_PARAMETER:
    LOG_W(PDCP, "Data sending request over RLC failed with 'Bad Parameter' reason!\n");
306 307
    ret= FALSE;
    break;
308 309
  case RLC_OP_STATUS_INTERNAL_ERROR:
    LOG_W(PDCP, "Data sending request over RLC failed with 'Internal Error' reason!\n");
310 311
    ret= FALSE;
    break;
312 313 314

  case RLC_OP_STATUS_OUT_OF_RESSOURCES:
    LOG_W(PDCP, "Data sending request over RLC failed with 'Out of Resources' reason!\n");
315 316
    ret= FALSE;
    break;
317 318 319

  default:
    LOG_W(PDCP, "RLC returned an unknown status code after PDCP placed the order to send some data (Status Code:%d)\n", rlc_status);
320 321
    ret= FALSE;
    break;
322
  }
323
  if (enb_flagP == ENB_FLAG_NO)
324
    stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_req);
325
  else
326
    stop_meas(&UE_pdcp_stats[ue_mod_idP].data_req);
327 328 329 330
  /*
   * Control arrives here only if rlc_data_req() returns RLC_OP_STATUS_OK
   * so we return TRUE afterwards
   */
331
  /*
332
   if (rb_id>=DTCH) {
333
    if (enb_flagP == 1) {
334 335 336 337 338 339 340
      Pdcp_stats_tx[module_id][(rb_id & RAB_OFFSET2 )>> RAB_SHIFT2][(rb_id & RAB_OFFSET)-DTCH]++;
      Pdcp_stats_tx_bytes[module_id][(rb_id & RAB_OFFSET2 )>> RAB_SHIFT2][(rb_id & RAB_OFFSET)-DTCH] += sdu_buffer_size;
    } else {
      Pdcp_stats_tx[module_id][(rb_id & RAB_OFFSET2 )>> RAB_SHIFT2][(rb_id & RAB_OFFSET)-DTCH]++;
      Pdcp_stats_tx_bytes[module_id][(rb_id & RAB_OFFSET2 )>> RAB_SHIFT2][(rb_id & RAB_OFFSET)-DTCH] += sdu_buffer_size;
    }
    }*/
341
  return ret;
342 343 344

}

gauthier's avatar
gauthier committed
345

gauthier's avatar
gauthier committed
346 347
boolean_t pdcp_data_ind(module_id_t enb_mod_idP, module_id_t ue_mod_idP, frame_t frameP, eNB_flag_t enb_flagP, MBMS_flag_t MBMS_flagP, rb_id_t rb_idP, sdu_size_t sdu_buffer_sizeP, \
    mem_block_t* sdu_buffer_pP, boolean_t is_data_planeP)
348 349
{
  //-----------------------------------------------------------------------------
gauthier's avatar
gauthier committed
350 351 352
  pdcp_t      *pdcp_p          = NULL;
  list_t      *sdu_list_p      = NULL;
  mem_block_t *new_sdu_p       = NULL;
353 354
  uint8_t           pdcp_header_len = 0;
  uint8_t           pdcp_tailer_len = 0;
gauthier's avatar
gauthier committed
355
  pdcp_sn_t    sequence_number = 0;
356
  uint8_t           payload_offset  = 0;
gauthier's avatar
gauthier committed
357

358 359
  if (enb_flagP)
    start_meas(&eNB_pdcp_stats[enb_mod_idP].data_ind);
360
  else
361 362
    start_meas(&UE_pdcp_stats[ue_mod_idP].data_ind);

363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387
#ifdef OAI_EMU
  if (enb_flagP) {
      AssertFatal ((enb_mod_idP >= oai_emulation.info.first_enb_local) && (oai_emulation.info.nb_enb_local > 0),
          "eNB module id is too low (%u/%d)!\n",
          enb_mod_idP,
          oai_emulation.info.first_enb_local);
      AssertFatal ((enb_mod_idP < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local)) && (oai_emulation.info.nb_enb_local > 0),
          "eNB module id is too high (%u/%d)!\n",
          enb_mod_idP,
          oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local);
      AssertFatal (ue_mod_idP  < NB_UE_INST,
          "UE module id is too high (%u/%d)!\n",
          ue_mod_idP,
          oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local);
  } else {
      AssertFatal (ue_mod_idP  < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local),
          "UE module id is too high (%u/%d)!\n",
          ue_mod_idP,
          oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local);
      AssertFatal (ue_mod_idP  >= oai_emulation.info.first_ue_local,
          "UE module id is too low (%u/%d)!\n",
          ue_mod_idP,
          oai_emulation.info.first_ue_local);
  }
#endif
388 389 390 391 392 393 394 395 396 397 398
  if (MBMS_flagP) {
      AssertError (rb_idP < NB_RB_MBMS_MAX, return FALSE, "RB id is too high (%u/%d) %u %u!\n", rb_idP, NB_RB_MBMS_MAX, ue_mod_idP, enb_mod_idP);
      if (enb_flagP == ENB_FLAG_NO) {
          LOG_I(PDCP, "e-MBMS Data indication notification for PDCP entity from eNB %u to UE %u "
                "and radio bearer ID %d rlc sdu size %d enb_flagP %d\n",
                enb_mod_idP, ue_mod_idP, rb_idP, sdu_buffer_sizeP, enb_flagP);
      } else {
          LOG_I(PDCP, "Data indication notification for PDCP entity from UE %u to eNB %u "
          "and radio bearer ID %d rlc sdu size %d enb_flagP %d eNB_id %d\n",
          ue_mod_idP, enb_mod_idP , rb_idP, sdu_buffer_sizeP, enb_flagP, enb_mod_idP);
      }
399
  } else {
400 401 402 403
      rb_idP = rb_idP % NB_RB_MAX;
      AssertError (rb_idP < NB_RB_MAX, return FALSE, "RB id is too high (%u/%d) %u %u!\n", rb_idP, NB_RB_MAX, ue_mod_idP, enb_mod_idP);
      if (enb_flagP == ENB_FLAG_NO) {
          pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_idP];
404

405 406 407 408 409 410 411
          LOG_I(PDCP, "Data indication notification for PDCP entity from eNB %u to UE %u "
                "and radio bearer ID %d rlc sdu size %d enb_flagP %d\n",
                enb_mod_idP, ue_mod_idP, rb_idP, sdu_buffer_sizeP, enb_flagP);
      } else {
          pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_idP];

          LOG_I(PDCP, "Data indication notification for PDCP entity from UE %u to eNB %u "
412
          "and radio bearer ID %d rlc sdu size %d enb_flagP %d eNB_id %d\n",
gauthier's avatar
gauthier committed
413
          ue_mod_idP, enb_mod_idP , rb_idP, sdu_buffer_sizeP, enb_flagP, enb_mod_idP);
414
      }
415
  }
416

gauthier's avatar
gauthier committed
417
  sdu_list_p = &pdcp_sdu_list;
418

419

gauthier's avatar
gauthier committed
420 421
  if (sdu_buffer_sizeP == 0) {
      LOG_W(PDCP, "SDU buffer size is zero! Ignoring this chunk!\n");
422 423
      if (enb_flagP)
	stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_ind);
424
      else
425
	stop_meas(&UE_pdcp_stats[ue_mod_idP].data_ind);
gauthier's avatar
gauthier committed
426
      return FALSE;
427 428 429
  }

  /*
gauthier's avatar
gauthier committed
430 431
   * Check if incoming SDU is long enough to carry a PDU header
   */
432
  if (MBMS_flagP == 0 ) {
gauthier's avatar
gauthier committed
433 434 435 436 437 438 439
      if ((rb_idP % NB_RB_MAX) < DTCH) {
          pdcp_header_len = PDCP_CONTROL_PLANE_DATA_PDU_SN_SIZE;
          pdcp_tailer_len = PDCP_CONTROL_PLANE_DATA_PDU_MAC_I_SIZE;
      } else {
          pdcp_header_len = PDCP_USER_PLANE_DATA_PDU_LONG_SN_HEADER_SIZE;
          pdcp_tailer_len = 0;
      }
440

gauthier's avatar
gauthier committed
441 442 443
      if (sdu_buffer_sizeP < pdcp_header_len + pdcp_tailer_len ) {
          LOG_W(PDCP, "Incoming (from RLC) SDU is short of size (size:%d)! Ignoring...\n", sdu_buffer_sizeP);
          free_mem_block(sdu_buffer_pP);
gauthier's avatar
gauthier committed
444 445 446 447 448
          if (enb_flagP)
            stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_ind);
          else
            stop_meas(&UE_pdcp_stats[ue_mod_idP].data_ind);
          return FALSE;
gauthier's avatar
gauthier committed
449
      }
450

gauthier's avatar
gauthier committed
451
      /*
452 453 454 455
       * Parse the PDU placed at the beginning of SDU to check
       * if incoming SN is in line with RX window
       */

gauthier's avatar
gauthier committed
456 457
      if (pdcp_header_len == PDCP_USER_PLANE_DATA_PDU_LONG_SN_HEADER_SIZE) { // DRB
          sequence_number =     pdcp_get_sequence_number_of_pdu_with_long_sn((unsigned char*)sdu_buffer_pP->data);
458
          //       uint8_t dc = pdcp_get_dc_filed((unsigned char*)sdu_buffer->data);
gauthier's avatar
gauthier committed
459 460 461 462 463 464
      } else { //SRB1/2
          sequence_number =   pdcp_get_sequence_number_of_pdu_with_SRB_sn((unsigned char*)sdu_buffer_pP->data);
      }
      if (pdcp_is_rx_seq_number_valid(sequence_number, pdcp_p) == TRUE) {
          LOG_D(PDCP, "Incoming PDU has a sequence number (%d) in accordance with RX window\n", sequence_number);
          /* if (dc == PDCP_DATA_PDU )
465 466 467
	   LOG_D(PDCP, "Passing piggybacked SDU to NAS driver...\n");
	   else
	   LOG_D(PDCP, "Passing piggybacked SDU to RRC ...\n");*/
gauthier's avatar
gauthier committed
468 469 470 471 472 473
      } else {
          LOG_W(PDCP, "Incoming PDU has an unexpected sequence number (%d), RX window snychronisation have probably been lost!\n", sequence_number);
          /*
           * XXX Till we implement in-sequence delivery and duplicate discarding
           * mechanism all out-of-order packets will be delivered to RRC/IP
           */
474
#if 0
gauthier's avatar
gauthier committed
475 476 477
          LOG_D(PDCP, "Ignoring PDU...\n");
          free_mem_block(sdu_buffer);
          return FALSE;
478
#else
gauthier's avatar
gauthier committed
479
          LOG_W(PDCP, "Delivering out-of-order SDU to upper layer...\n");
480
#endif
481
      }
gauthier's avatar
gauthier committed
482 483 484 485 486 487 488 489
      // SRB1/2: control-plane data
      if ( (rb_idP % NB_RB_MAX) <  DTCH ){
#if defined(ENABLE_SECURITY)
          if (pdcp->security_activated == 1) {
              pdcp_validate_security(pdcp, rb_id, pdcp_header_len,
                  sequence_number, sdu_buffer->data,
                  sdu_buffer_size - pdcp_tailer_len);
          }
490
#endif
gauthier's avatar
gauthier committed
491 492 493 494 495 496 497
//rrc_lite_data_ind(module_id, //Modified MW - L2 Interface
          pdcp_rrc_data_ind(enb_mod_idP,
              ue_mod_idP,
              frameP,
              enb_flagP,
              rb_idP,
              sdu_buffer_sizeP - pdcp_header_len - pdcp_tailer_len,
498
              (uint8_t*)&sdu_buffer_pP->data[pdcp_header_len]);
gauthier's avatar
gauthier committed
499 500
          free_mem_block(sdu_buffer_pP);
          // free_mem_block(new_sdu);
501
          if (enb_flagP)
gauthier's avatar
gauthier committed
502 503 504 505
            stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_ind);
          else
            stop_meas(&UE_pdcp_stats[ue_mod_idP].data_ind);
          return TRUE;
gauthier's avatar
gauthier committed
506 507
      }
      payload_offset=PDCP_USER_PLANE_DATA_PDU_LONG_SN_HEADER_SIZE;
508
#if defined(ENABLE_SECURITY)
gauthier's avatar
gauthier committed
509 510 511 512 513
      if (pdcp->security_activated == 1) {
          pdcp_validate_security(pdcp_p, rb_idP % NB_RB_MAX, pdcp_header_len,
              sequence_number, sdu_buffer->data,
              sdu_buffer_size - pdcp_tailer_len);
      }
514
#endif
515
  } else {
gauthier's avatar
gauthier committed
516
      payload_offset=0;
517 518
  }
#if defined(USER_MODE) && defined(OAI_EMU)
519
  if (oai_emulation.info.otg_enabled == 1) {
gauthier's avatar
gauthier committed
520 521
      module_id_t src_id, dst_id;
      int    ctime;
522 523 524
      rlc_util_print_hex_octets(PDCP,
                                &sdu_buffer_pP->data[payload_offset],
                                sdu_buffer_sizeP - payload_offset);
gauthier's avatar
gauthier committed
525 526

      src_id = (enb_flagP != 0) ? ue_mod_idP : enb_mod_idP;
527
      dst_id = (enb_flagP == ENB_FLAG_NO) ? ue_mod_idP : enb_mod_idP;
gauthier's avatar
gauthier committed
528 529 530 531 532 533 534
      ctime = oai_emulation.info.time_ms; // avg current simulation time in ms : we may get the exact time through OCG?
      LOG_D(PDCP, "Check received buffer : enb_flag %d  rab id %d (src %d, dst %d)\n",
          enb_flagP, rb_idP, src_id, dst_id);

      if (otg_rx_pkt(src_id, dst_id,ctime,&sdu_buffer_pP->data[payload_offset],
          sdu_buffer_sizeP - payload_offset ) == 0 ) {
          free_mem_block(sdu_buffer_pP);
535
           if (enb_flagP)
gauthier's avatar
gauthier committed
536 537 538 539
             stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_ind);
           else
             stop_meas(&UE_pdcp_stats[ue_mod_idP].data_ind);
           return TRUE;
gauthier's avatar
gauthier committed
540
      }
541 542 543
  }
#else
  if (otg_enabled==1) {
gauthier's avatar
gauthier committed
544 545
      LOG_D(OTG,"Discarding received packed\n");
      free_mem_block(sdu_buffer_pP);
546 547
      if (enb_flagP)
	stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_ind);
548
      else
549
	stop_meas(&UE_pdcp_stats[ue_mod_idP].data_ind);
gauthier's avatar
gauthier committed
550
      return TRUE;
551 552
  }
#endif
gauthier's avatar
gauthier committed
553
  new_sdu_p = get_free_mem_block(sdu_buffer_sizeP - payload_offset + sizeof (pdcp_data_ind_header_t));
554

gauthier's avatar
gauthier committed
555 556
  if (new_sdu_p) {
      /*
557 558
       * Prepend PDCP indication header which is going to be removed at pdcp_fifo_flush_sdus()
       */
gauthier's avatar
gauthier committed
559 560 561 562 563
      memset(new_sdu_p->data, 0, sizeof (pdcp_data_ind_header_t));
      ((pdcp_data_ind_header_t *) new_sdu_p->data)->data_size = sdu_buffer_sizeP - payload_offset;

      // Here there is no virtualization possible
      // set ((pdcp_data_ind_header_t *) new_sdu_p->data)->inst for IP layer here
564
      if (enb_flagP == ENB_FLAG_NO) {
gauthier's avatar
gauthier committed
565 566 567 568 569 570 571 572
          ((pdcp_data_ind_header_t *) new_sdu_p->data)->rb_id = rb_idP;
#if defined(OAI_EMU)
          ((pdcp_data_ind_header_t *) new_sdu_p->data)->inst  = ue_mod_idP + oai_emulation.info.nb_enb_local - oai_emulation.info.first_ue_local;
#endif
      } else {
          ((pdcp_data_ind_header_t *) new_sdu_p->data)->rb_id = rb_idP + (ue_mod_idP * NB_RB_MAX);
#if defined(OAI_EMU)
          ((pdcp_data_ind_header_t *) new_sdu_p->data)->inst  = enb_mod_idP - oai_emulation.info.first_enb_local;
573
#endif
gauthier's avatar
gauthier committed
574 575
      }

576

gauthier's avatar
gauthier committed
577 578 579
      // XXX Decompression would be done at this point

      /*
580 581 582 583 584
       * After checking incoming sequence number PDCP header
       * has to be stripped off so here we copy SDU buffer starting
       * from its second byte (skipping 0th and 1st octets, i.e.
       * PDCP header)
       */
gauthier's avatar
gauthier committed
585 586 587 588 589 590 591 592 593 594 595 596 597
      memcpy(&new_sdu_p->data[sizeof (pdcp_data_ind_header_t)], \
          &sdu_buffer_pP->data[payload_offset], \
          sdu_buffer_sizeP - payload_offset);
      list_add_tail_eurecom (new_sdu_p, sdu_list_p);

      /* Print octets of incoming data in hexadecimal form */
      LOG_D(PDCP, "Following content has been received from RLC (%d,%d)(PDCP header has already been removed):\n",
          sdu_buffer_sizeP  - payload_offset + sizeof(pdcp_data_ind_header_t),
          sdu_buffer_sizeP  - payload_offset);
      //util_print_hex_octets(PDCP, &new_sdu_p->data[sizeof (pdcp_data_ind_header_t)], sdu_buffer_sizeP - payload_offset);
      //util_flush_hex_octets(PDCP, &new_sdu_p->data[sizeof (pdcp_data_ind_header_t)], sdu_buffer_sizeP - payload_offset);

      /*
598 599 600
       * Update PDCP statistics
       * XXX Following two actions are identical, is there a merge error?
       */
gauthier's avatar
gauthier committed
601 602 603 604

      /*if (enb_flagP == 1) {
      Pdcp_stats_rx[module_id][(rb_idP & RAB_OFFSET2) >> RAB_SHIFT2][(rb_idP & RAB_OFFSET) - DTCH]++;
      Pdcp_stats_rx_bytes[module_id][(rb_idP & RAB_OFFSET2) >> RAB_SHIFT2][(rb_idP & RAB_OFFSET) - DTCH] += sdu_buffer_sizeP;
605
    } else {
gauthier's avatar
gauthier committed
606 607 608 609 610 611 612 613 614 615 616 617
      Pdcp_stats_rx[module_id][(rb_idP & RAB_OFFSET2) >> RAB_SHIFT2][(rb_idP & RAB_OFFSET) - DTCH]++;
      Pdcp_stats_rx_bytes[module_id][(rb_idP & RAB_OFFSET2) >> RAB_SHIFT2][(rb_idP & RAB_OFFSET) - DTCH] += sdu_buffer_sizeP;
    }*/
  }
#if defined(STOP_ON_IP_TRAFFIC_OVERLOAD)
  else {
      AssertFatal(0, "[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u] PDCP_DATA_IND SDU DROPPED, OUT OF MEMORY \n",
            frameP,
            (enb_flagP) ? "eNB" : "UE",
            enb_mod_idP,
            ue_mod_idP,
            rb_idP);
618
  }
gauthier's avatar
gauthier committed
619
#endif
620

gauthier's avatar
gauthier committed
621
  free_mem_block(sdu_buffer_pP);
622 623
  if (enb_flagP)
    stop_meas(&eNB_pdcp_stats[enb_mod_idP].data_ind);
624
  else
625
    stop_meas(&UE_pdcp_stats[ue_mod_idP].data_ind);
626 627 628 629
  return TRUE;
}

//-----------------------------------------------------------------------------
630
void pdcp_run (frame_t frameP, eNB_flag_t  enb_flagP, module_id_t ue_mod_idP, module_id_t enb_mod_idP) {
631
  //-----------------------------------------------------------------------------
632
#if defined(ENABLE_ITTI)
633 634 635 636
  MessageDef   *msg_p;
  const char   *msg_name;
  instance_t    instance;
  int           result;
637
#endif
638 639
  if (enb_flagP)
    start_meas(&eNB_pdcp_stats[enb_mod_idP].pdcp_run);
640
  else
641
    start_meas(&UE_pdcp_stats[ue_mod_idP].pdcp_run);
642

643
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_RUN, VCD_FUNCTION_IN);
644

645 646
#if defined(ENABLE_ITTI)
  do {
gauthier's avatar
gauthier committed
647
      // Checks if a message has been sent to PDCP sub-task
648
      itti_poll_msg (enb_flagP ? TASK_PDCP_ENB : TASK_PDCP_UE, &msg_p);
649

gauthier's avatar
gauthier committed
650 651 652
      if (msg_p != NULL) {
          msg_name = ITTI_MSG_NAME (msg_p);
          instance = ITTI_MSG_INSTANCE (msg_p);
653

gauthier's avatar
gauthier committed
654 655
          switch (ITTI_MSG_ID(msg_p)) {
          case RRC_DCCH_DATA_REQ:
656
            LOG_I(PDCP, "Received %s from %s: instance %d, frame %d, enb_flagP %d, rb_id %d, muiP %d, confirmP %d, mode %d\n",
657
                msg_name, ITTI_MSG_ORIGIN_NAME(msg_p), instance,
658 659 660
                RRC_DCCH_DATA_REQ (msg_p).frame, RRC_DCCH_DATA_REQ (msg_p).enb_flag, RRC_DCCH_DATA_REQ (msg_p).rb_id,
                RRC_DCCH_DATA_REQ (msg_p).muip, RRC_DCCH_DATA_REQ (msg_p).confirmp, RRC_DCCH_DATA_REQ (msg_p).mode);

gauthier's avatar
gauthier committed
661 662 663 664 665
            result = pdcp_data_req (RRC_DCCH_DATA_REQ (msg_p).eNB_index, RRC_DCCH_DATA_REQ (msg_p).ue_index, RRC_DCCH_DATA_REQ (msg_p).frame, RRC_DCCH_DATA_REQ (msg_p).enb_flag,
                RRC_DCCH_DATA_REQ (msg_p).rb_id, RRC_DCCH_DATA_REQ (msg_p).muip,
                RRC_DCCH_DATA_REQ (msg_p).confirmp, RRC_DCCH_DATA_REQ (msg_p).sdu_size,
                RRC_DCCH_DATA_REQ (msg_p).sdu_p, RRC_DCCH_DATA_REQ (msg_p).mode);
            AssertFatal (result == TRUE, "PDCP data request failed!\n");
666

gauthier's avatar
gauthier committed
667 668 669 670
            // Message buffer has been processed, free it now.
            result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), RRC_DCCH_DATA_REQ (msg_p).sdu_p);
            AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
            break;
671

gauthier's avatar
gauthier committed
672 673 674 675
          default:
            LOG_E(PDCP, "Received unexpected message %s\n", msg_name);
            break;
          }
676

gauthier's avatar
gauthier committed
677 678 679
          result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), msg_p);
          AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
      }
680
  } while(msg_p != NULL);
681 682 683

# if 0
  {
gauthier's avatar
gauthier committed
684
      MessageDef *msg_resp_p;
685

gauthier's avatar
gauthier committed
686
      msg_resp_p = itti_alloc_new_message(TASK_PDCP_ENB, MESSAGE_TEST);
687

gauthier's avatar
gauthier committed
688
      itti_send_msg_to_task(TASK_RRC_ENB, 1, msg_resp_p);
689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
  }
  {
    MessageDef *msg_resp_p;

    msg_resp_p = itti_alloc_new_message(TASK_PDCP_ENB, MESSAGE_TEST);

    itti_send_msg_to_task(TASK_ENB_APP, 2, msg_resp_p);
  }
  {
    MessageDef *msg_resp_p;

    msg_resp_p = itti_alloc_new_message(TASK_PDCP_ENB, MESSAGE_TEST);

    itti_send_msg_to_task(TASK_MAC_ENB, 3, msg_resp_p);
  }
# endif
705 706
#endif

707 708 709 710 711 712 713 714 715 716 717 718
#if defined(USER_MODE) && defined(OAI_EMU)
  pdcp_t            *pdcp_p          = NULL;
  // add other rb_ids 
  if (enb_flagP == ENB_FLAG_NO) {
      pdcp_p = &pdcp_array_ue[ue_mod_idP][DTCH];
  } else {
      pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][DTCH];
  }

  if (pdcp_p->instanciated_instance  == TRUE )
    pdcp_fifo_read_input_sdus_from_otg(frameP, enb_flagP, ue_mod_idP, enb_mod_idP);
#endif 
719 720

  // IP/NAS -> PDCP traffic : TX, read the pkt from the upper layer buffer
gauthier's avatar
gauthier committed
721
#if defined(LINK_PDCP_TO_GTPV1U)
gauthier's avatar
gauthier committed
722
  if (enb_flagP == ENB_FLAG_NO)
gauthier's avatar
gauthier committed
723
#endif
gauthier's avatar
gauthier committed
724
  {
gauthier's avatar
gauthier committed
725 726
      pdcp_fifo_read_input_sdus(frameP, enb_flagP, ue_mod_idP, enb_mod_idP);
  }
727
  // PDCP -> NAS/IP traffic: RX
728
  pdcp_fifo_flush_sdus(frameP, enb_flagP, enb_mod_idP, ue_mod_idP);
729

730
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_RUN, VCD_FUNCTION_OUT);
731 732
  if (enb_flagP)
    stop_meas(&eNB_pdcp_stats[enb_mod_idP].pdcp_run);
733
  else
734 735
    stop_meas(&UE_pdcp_stats[ue_mod_idP].pdcp_run);

736 737
}

gauthier's avatar
gauthier committed
738
boolean_t rrc_pdcp_config_asn1_req (module_id_t               enb_mod_idP,
gauthier's avatar
gauthier committed
739 740 741 742 743 744
    module_id_t               ue_mod_idP,
    frame_t              frameP,
    eNB_flag_t           enb_flagP,
    SRB_ToAddModList_t  *srb2add_list_pP,
    DRB_ToAddModList_t  *drb2add_list_pP,
    DRB_ToReleaseList_t *drb2release_list_pP,
745 746 747 748
    uint8_t                   security_modeP,
    uint8_t                  *kRRCenc_pP,
    uint8_t                  *kRRCint_pP,
    uint8_t                  *kUPenc_pP
749
#ifdef Rel10
gauthier's avatar
gauthier committed
750
,PMCH_InfoList_r9_t*  pmch_InfoList_r9_pP
751
#endif
gauthier's avatar
gauthier committed
752
)
753
{
754 755 756
  long int        rb_id          = 0;
  long int        lc_id          = 0;
  long int        srb_id         = 0;
757
  long int        mch_id         = 0;
gauthier's avatar
gauthier committed
758
  rlc_mode_t      rlc_type       = RLC_MODE_NONE;
759
  DRB_Identity_t  drb_id         = 0;
gauthier's avatar
gauthier committed
760
  DRB_Identity_t *pdrb_id_p      = NULL;
761 762 763
  uint8_t         drb_sn         = 0;
  uint8_t         srb_sn         = 5; // fixed sn for SRBs
  uint8_t         drb_report     = 0;
764
  long int        cnt            = 0;
765 766
  uint16_t        header_compression_profile = 0;
  config_action_t action                     = CONFIG_ACTION_ADD;
gauthier's avatar
gauthier committed
767 768 769
  SRB_ToAddMod_t *srb_toaddmod_p = NULL;
  DRB_ToAddMod_t *drb_toaddmod_p = NULL;
  pdcp_t         *pdcp_p         = NULL;
770 771 772

#ifdef Rel10
  int i,j;
gauthier's avatar
gauthier committed
773 774
  MBMS_SessionInfoList_r9_t *mbms_SessionInfoList_r9_p = NULL;
  MBMS_SessionInfo_r9_t     *MBMS_SessionInfo_p        = NULL;
775 776
#endif

777
  if (enb_flagP == ENB_FLAG_NO) {
gauthier's avatar
gauthier committed
778
      LOG_D(PDCP, "[UE %u] CONFIG REQ ASN1 for eNB %u\n", ue_mod_idP, enb_mod_idP);
779
  } else {
gauthier's avatar
gauthier committed
780
      LOG_D(PDCP, "[eNB %u] CONFIG REQ ASN1 for UE %u\n", enb_mod_idP, ue_mod_idP);
781
  }
782 783
  // srb2add_list does not define pdcp config, we use rlc info to setup the pdcp dcch0 and dcch1 channels

gauthier's avatar
gauthier committed
784 785 786 787 788 789 790 791
  if (srb2add_list_pP != NULL) {
      for (cnt=0;cnt<srb2add_list_pP->list.count;cnt++) {
          srb_id = srb2add_list_pP->list.array[cnt]->srb_Identity;
          srb_toaddmod_p = srb2add_list_pP->list.array[cnt];
          rlc_type = RLC_MODE_AM;
          rb_id = srb_id;
          lc_id = srb_id;

792
          if (enb_flagP == ENB_FLAG_NO) {
gauthier's avatar
gauthier committed
793 794 795 796
              pdcp_p = &pdcp_array_ue[ue_mod_idP][srb_id];
          } else {
              pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][srb_id];
          }
797

798 799
          if (pdcp_p->instanciated_instance == TRUE) {
              action = CONFIG_ACTION_MODIFY;
gauthier's avatar
gauthier committed
800
          } else {
801
              action = CONFIG_ACTION_ADD;
gauthier's avatar
gauthier committed
802
          }
803

gauthier's avatar
gauthier committed
804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840
          if (srb_toaddmod_p->rlc_Config) {
              switch (srb_toaddmod_p->rlc_Config->present) {
              case SRB_ToAddMod__rlc_Config_PR_NOTHING:
                break;
              case SRB_ToAddMod__rlc_Config_PR_explicitValue:
                switch (srb_toaddmod_p->rlc_Config->choice.explicitValue.present) {
                case RLC_Config_PR_NOTHING:
                  break;
                default:
                  pdcp_config_req_asn1 (pdcp_p,
                      enb_mod_idP,
                      ue_mod_idP,
                      frameP,
                      enb_flagP, // not really required
                      rlc_type,
                      action,
                      lc_id,
                      mch_id,
                      rb_id,
                      srb_sn,
                      0, // drb_report
                      0, // header compression
                      security_modeP,
                      kRRCenc_pP,
                      kRRCint_pP,
                      kUPenc_pP);
                  break;
                }
                break;
                case SRB_ToAddMod__rlc_Config_PR_defaultValue:
                  // already the default values
                  break;
                default:
                  DevParam(srb_toaddmod_p->rlc_Config->present, ue_mod_idP, enb_mod_idP);
                  break;
              }
          }
841 842 843 844
      }
  }
  // reset the action

gauthier's avatar
gauthier committed
845 846
  if (drb2add_list_pP != NULL) {
      for (cnt=0;cnt<drb2add_list_pP->list.count;cnt++) {
847

gauthier's avatar
gauthier committed
848
          drb_toaddmod_p = drb2add_list_pP->list.array[cnt];
849

gauthier's avatar
gauthier committed
850
          drb_id = drb_toaddmod_p->drb_Identity;
851

gauthier's avatar
gauthier committed
852 853 854 855 856 857
          if (drb_toaddmod_p->logicalChannelIdentity != null) {
              lc_id = *drb_toaddmod_p->logicalChannelIdentity;
          } else {
              lc_id = -1;
          }
          rb_id = lc_id;
858

gauthier's avatar
gauthier committed
859
          DevCheck4(rb_id < NB_RB_MAX, rb_id, NB_RB_MAX, ue_mod_idP, enb_mod_idP);
860

861
          if (enb_flagP == ENB_FLAG_NO) {
gauthier's avatar
gauthier committed
862 863 864 865
              pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_id];
          } else {
              pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_id];
          }
866

867 868
          if (pdcp_p->instanciated_instance == TRUE)
            action = CONFIG_ACTION_MODIFY;
gauthier's avatar
gauthier committed
869
          else
870
            action = CONFIG_ACTION_ADD;
gauthier's avatar
gauthier committed
871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915

          if (drb_toaddmod_p->pdcp_Config){
              if (drb_toaddmod_p->pdcp_Config->discardTimer) {
                  // set the value of the timer
              }
              if (drb_toaddmod_p->pdcp_Config->rlc_AM) {
                  drb_report = drb_toaddmod_p->pdcp_Config->rlc_AM->statusReportRequired;
                  rlc_type =RLC_MODE_AM;
              }
              if (drb_toaddmod_p->pdcp_Config->rlc_UM){
                  drb_sn = drb_toaddmod_p->pdcp_Config->rlc_UM->pdcp_SN_Size;
                  rlc_type =RLC_MODE_UM;
              }
              switch (drb_toaddmod_p->pdcp_Config->headerCompression.present) {
              case PDCP_Config__headerCompression_PR_NOTHING:
              case PDCP_Config__headerCompression_PR_notUsed:
                header_compression_profile=0x0;
                break;
              case PDCP_Config__headerCompression_PR_rohc:
                // parse the struc and get the rohc profile
                if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0001)
                  header_compression_profile=0x0001;
                else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0002)
                  header_compression_profile=0x0002;
                else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0003)
                  header_compression_profile=0x0003;
                else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0004)
                  header_compression_profile=0x0004;
                else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0006)
                  header_compression_profile=0x0006;
                else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0101)
                  header_compression_profile=0x0101;
                else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0102)
                  header_compression_profile=0x0102;
                else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0103)
                  header_compression_profile=0x0103;
                else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0104)
                  header_compression_profile=0x0104;
                else {
                    header_compression_profile=0x0;
                    LOG_W(PDCP,"unknown header compresion profile\n");
                }
                // set the applicable profile
                break;
              default:
gauthier's avatar
gauthier committed
916 917
                LOG_W(PDCP,"[MOD_id %u/%u][RB %u] unknown drb_toaddmod->PDCP_Config->headerCompression->present \n",
                    enb_mod_idP, ue_mod_idP, drb_id);
gauthier's avatar
gauthier committed
918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936
                break;
              }
              pdcp_config_req_asn1 (pdcp_p,
                  enb_mod_idP,
                  ue_mod_idP,
                  frameP,
                  enb_flagP, // not really required
                  rlc_type,
                  action,
                  lc_id,
                  mch_id,
                  rb_id,
                  drb_sn,
                  drb_report,
                  header_compression_profile,
                  security_modeP,
                  kRRCenc_pP,
                  kRRCint_pP,
                  kUPenc_pP);
937 938 939 940
          }
      }
  }

gauthier's avatar
gauthier committed
941 942 943 944
  if (drb2release_list_pP != NULL) {
      for (cnt=0;cnt<drb2release_list_pP->list.count;cnt++) {
          pdrb_id_p = drb2release_list_pP->list.array[cnt];
          rb_id =  *pdrb_id_p;
945
          if (enb_flagP == ENB_FLAG_NO) {
gauthier's avatar
gauthier committed
946 947 948 949
              pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_id];
          } else {
              pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_id];
          }
950
          action = CONFIG_ACTION_REMOVE;
gauthier's avatar
gauthier committed
951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967
          pdcp_config_req_asn1 (pdcp_p,
              enb_mod_idP,
              ue_mod_idP,
              frameP,
              enb_flagP, // not really required
              rlc_type,
              action,
              lc_id,
              mch_id,
              rb_id,
              0,
              0,
              0,
              security_modeP,
              kRRCenc_pP,
              kRRCint_pP,
              kUPenc_pP);
968
      }
969 970 971
  }

#ifdef Rel10
972 973 974 975 976 977 978
  if (pmch_InfoList_r9_pP != NULL) {
      for (i=0;i<pmch_InfoList_r9_pP->list.count;i++) {
          mbms_SessionInfoList_r9_p = &(pmch_InfoList_r9_pP->list.array[i]->mbms_SessionInfoList_r9);
          for (j=0;j<mbms_SessionInfoList_r9_p->list.count;j++) {
              MBMS_SessionInfo_p = mbms_SessionInfoList_r9_p->list.array[j];
              lc_id = MBMS_SessionInfo_p->sessionId_r9->buf[0];
              mch_id = MBMS_SessionInfo_p->tmgi_r9.serviceId_r9.buf[2]; //serviceId is 3-octet string
gauthier's avatar
gauthier committed
979 980

              // can set the mch_id = i
981
              if (enb_flagP) {
982
                rb_id =  (mch_id * maxSessionPerPMCH ) + lc_id + (maxDRB + 3)*MAX_MOBILES_PER_ENB; // 1
983 984
                if (pdcp_mbms_array_eNB[enb_mod_idP][mch_id][lc_id].instanciated_instance == TRUE)
                  action = CONFIG_ACTION_MBMS_MODIFY;
985
                else
986
                  action = CONFIG_ACTION_MBMS_ADD;
987
              } else {
gauthier's avatar
gauthier committed
988
                rb_id =  (mch_id * maxSessionPerPMCH ) + lc_id + (maxDRB + 3); // 15
989 990
                if (pdcp_mbms_array_ue[ue_mod_idP][mch_id][lc_id].instanciated_instance == TRUE)
                  action = CONFIG_ACTION_MBMS_MODIFY;
991
                else
992
                  action = CONFIG_ACTION_MBMS_ADD;
993 994
              }

gauthier's avatar
gauthier committed
995 996


997 998
              pdcp_config_req_asn1 (
                  NULL,  // unused for MBMS
gauthier's avatar
gauthier committed
999 1000 1001
                  enb_mod_idP,
                  ue_mod_idP,
                  frameP,
1002
                  enb_flagP,
gauthier's avatar
gauthier committed
1003
                  RLC_MODE_NONE,
gauthier's avatar
gauthier committed
1004 1005 1006 1007
                  action,
                  lc_id,
                  mch_id,
                  rb_id,
gauthier's avatar
gauthier committed
1008 1009 1010 1011 1012 1013 1014
                  0,   // unused for MBMS
                  0,   // unused for MBMS
                  0,   // unused for MBMS
                  0,   // unused for MBMS
                  NULL,  // unused for MBMS
                  NULL,  // unused for MBMS
                  NULL); // unused for MBMS
gauthier's avatar
gauthier committed
1015
          }
1016 1017 1018 1019 1020 1021 1022 1023
      }
  }
#endif

  return 1;

}

gauthier's avatar
gauthier committed
1024
boolean_t pdcp_config_req_asn1 (pdcp_t   *pdcp_pP,
gauthier's avatar
gauthier committed
1025 1026
    module_id_t     enb_mod_idP,
    module_id_t     ue_mod_idP,
gauthier's avatar
gauthier committed
1027 1028 1029
    frame_t         frameP,
    eNB_flag_t      enb_flagP,
    rlc_mode_t      rlc_modeP,
1030 1031 1032
    config_action_t actionP,
    uint16_t        lc_idP,
    uint16_t        mch_idP,
gauthier's avatar
gauthier committed
1033
    rb_id_t         rb_idP,
1034 1035 1036 1037 1038 1039 1040
    uint8_t         rb_snP,
    uint8_t         rb_reportP,
    uint16_t        header_compression_profileP,
    uint8_t         security_modeP,
    uint8_t         *kRRCenc_pP,
    uint8_t         *kRRCint_pP,
    uint8_t         *kUPenc_pP)
1041
{
1042

gauthier's avatar
gauthier committed
1043
  switch (actionP) {
1044
  case CONFIG_ACTION_ADD:
gauthier's avatar
gauthier committed
1045
    DevAssert(pdcp_pP != NULL);
1046 1047
    pdcp_pP->instanciated_instance      = TRUE;
    pdcp_pP->is_ue                      = (enb_flagP == ENB_FLAG_NO) ? TRUE : FALSE;
gauthier's avatar
gauthier committed
1048
    pdcp_pP->lcid                       = lc_idP;
gauthier's avatar
gauthier committed
1049
    pdcp_pP->header_compression_profile = header_compression_profileP;
gauthier's avatar
gauthier committed
1050
    pdcp_pP->status_report              = rb_reportP;
gauthier's avatar
gauthier committed
1051 1052 1053 1054

    if (rb_snP == PDCP_Config__rlc_UM__pdcp_SN_Size_len7bits) {
        pdcp_pP->seq_num_size = 7;
    } else if (rb_snP == PDCP_Config__rlc_UM__pdcp_SN_Size_len12bits) {
gauthier's avatar
gauthier committed
1055
        pdcp_pP->seq_num_size = 12;
gauthier's avatar
gauthier committed
1056
    } else {
gauthier's avatar
gauthier committed
1057
        pdcp_pP->seq_num_size = 5;
gauthier's avatar
gauthier committed
1058
    }
1059

gauthier's avatar
gauthier committed
1060 1061 1062 1063 1064
    pdcp_pP->rlc_mode                  = rlc_modeP;
    pdcp_pP->next_pdcp_tx_sn           = 0;
    pdcp_pP->next_pdcp_rx_sn           = 0;
    pdcp_pP->tx_hfn                    = 0;
    pdcp_pP->rx_hfn                    = 0;
gauthier's avatar
gauthier committed
1065
    pdcp_pP->last_submitted_pdcp_rx_sn = 4095;
gauthier's avatar
gauthier committed
1066
    pdcp_pP->first_missing_pdu         = -1;
gauthier's avatar
gauthier committed
1067

1068
    if (enb_flagP == ENB_FLAG_NO) {
1069
        LOG_I(PDCP, "[UE %d] Config request : Action ADD for eNB %d: Frame %d LCID %d (rb id %d) "
gauthier's avatar
gauthier committed
1070 1071 1072 1073
            "configured with SN size %d bits and RLC %s\n",
            ue_mod_idP, enb_mod_idP, frameP, lc_idP, rb_idP, pdcp_pP->seq_num_size,
            (rlc_modeP == 1) ? "AM" : (rlc_modeP == 2) ? "TM" : "UM");
    } else {
1074
        LOG_I(PDCP, "[eNB %d] Config request : Action ADD for UE %d: Frame %d LCID %d (rb id %d) "
gauthier's avatar
gauthier committed
1075 1076 1077 1078
            "configured with SN size %d bits and RLC %s\n",
            enb_mod_idP, ue_mod_idP, frameP, lc_idP, rb_idP, pdcp_pP->seq_num_size,
            (rlc_modeP == 1) ? "AM" : (rlc_modeP == 2) ? "TM" : "UM");
    }
1079

gauthier's avatar
gauthier committed
1080 1081 1082 1083
    /* Setup security */
    if (security_modeP != 0xff) {
        pdcp_config_set_security(pdcp_pP, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, rb_idP, lc_idP, security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP);
    }
1084

1085
    LOG_D(PDCP, "[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u]\n", frameP, (enb_flagP == ENB_FLAG_NO) ? "UE" : "eNB",  enb_mod_idP, ue_mod_idP, rb_idP);
gauthier's avatar
gauthier committed
1086
    break;
1087

1088
  case CONFIG_ACTION_MODIFY:
gauthier's avatar
gauthier committed
1089 1090 1091 1092
    DevAssert(pdcp_pP != NULL);
    pdcp_pP->header_compression_profile=header_compression_profileP;
    pdcp_pP->status_report = rb_reportP;
    pdcp_pP->rlc_mode = rlc_modeP;
1093

gauthier's avatar
gauthier committed
1094 1095 1096 1097
    /* Setup security */
    if (security_modeP != 0xff) {
        pdcp_config_set_security(pdcp_pP, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, rb_idP, lc_idP, security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP);
    }
1098

gauthier's avatar
gauthier committed
1099 1100 1101 1102 1103 1104 1105
    if (rb_snP == PDCP_Config__rlc_UM__pdcp_SN_Size_len7bits) {
        pdcp_pP->seq_num_size = 7;
    } else if (rb_snP == PDCP_Config__rlc_UM__pdcp_SN_Size_len12bits) {
        pdcp_pP->seq_num_size = 12;
    } else {
        pdcp_pP->seq_num_size=5;
    }
1106

1107
    if (enb_flagP == ENB_FLAG_NO) {
1108
        LOG_I(PDCP,"[UE %d] Config request : Action MODIFY for eNB %d: Frame %d LCID %d "
gauthier's avatar
gauthier committed
1109 1110 1111 1112
            "RB id %d configured with SN size %d and RLC %s \n",
            ue_mod_idP, enb_mod_idP, frameP, lc_idP, rb_idP, rb_snP,
            (rlc_modeP == 1) ? "AM" : (rlc_modeP == 2) ? "TM" : "UM");
    } else {
1113
        LOG_I(PDCP,"[eNB %d] Config request : Action MODIFY for UE %d: Frame %d LCID %d "
gauthier's avatar
gauthier committed
1114 1115 1116 1117 1118
            "RB id %d configured with SN size %d and RLC %s \n",
            enb_mod_idP, ue_mod_idP, frameP, lc_idP, rb_idP, rb_snP,
            (rlc_modeP == 1) ? "AM" : (rlc_modeP == 2) ? "TM" : "UM");
    }
    break;
1119
  case CONFIG_ACTION_REMOVE:
gauthier's avatar
gauthier committed
1120
    DevAssert(pdcp_pP != NULL);
1121
    pdcp_pP->instanciated_instance = FALSE;
gauthier's avatar
gauthier committed
1122 1123 1124 1125 1126
    pdcp_pP->lcid = 0;
    pdcp_pP->header_compression_profile = 0x0;
    pdcp_pP->cipheringAlgorithm = 0xff;
    pdcp_pP->integrityProtAlgorithm = 0xff;
    pdcp_pP->status_report = 0;
gauthier's avatar
gauthier committed
1127
    pdcp_pP->rlc_mode = RLC_MODE_NONE;
gauthier's avatar
gauthier committed
1128 1129 1130 1131 1132 1133 1134 1135 1136
    pdcp_pP->next_pdcp_tx_sn = 0;
    pdcp_pP->next_pdcp_rx_sn = 0;
    pdcp_pP->tx_hfn = 0;
    pdcp_pP->rx_hfn = 0;
    pdcp_pP->last_submitted_pdcp_rx_sn = 4095;
    pdcp_pP->seq_num_size = 0;
    pdcp_pP->first_missing_pdu = -1;
    pdcp_pP->security_activated = 0;

1137 1138
    if (enb_flagP == ENB_FLAG_NO) {
        LOG_I(PDCP, "[UE %d] Config request : CONFIG_ACTION_REMOVE for eNB %d: Frame %d LCID %d RBID %d configured\n",
gauthier's avatar
gauthier committed
1139 1140
            ue_mod_idP, enb_mod_idP, frameP, lc_idP, rb_idP);
    } else {
1141
        LOG_I(PDCP, "[eNB %d] Config request : CONFIG_ACTION_REMOVE for UE %d: Frame %d LCID %d RBID %d configured\n",
gauthier's avatar
gauthier committed
1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154
            enb_mod_idP, ue_mod_idP, frameP, lc_idP, rb_idP);
    }
    /* Security keys */
    if (pdcp_pP->kUPenc != NULL) {
        free(pdcp_pP->kUPenc);
    }
    if (pdcp_pP->kRRCint != NULL) {
        free(pdcp_pP->kRRCint);
    }
    if (pdcp_pP->kRRCenc != NULL) {
        free(pdcp_pP->kRRCenc);
    }
    break;
gauthier's avatar
gauthier committed
1155
#if defined(Rel10)
1156 1157 1158
  case CONFIG_ACTION_MBMS_ADD:
  case CONFIG_ACTION_MBMS_MODIFY:
    if (enb_flagP == ENB_FLAG_NO) {
1159
        LOG_I(PDCP,"[UE %d] Config request for eNB %d: %s: Frame %d service_id/mch index %d, session_id/lcid %d, rbid %d configured\n",
1160
            ue_mod_idP, enb_mod_idP, actionP == CONFIG_ACTION_MBMS_ADD ? "CONFIG_ACTION_MBMS_ADD" : "CONFIG_ACTION_MBMS_MODIFY", frameP, mch_idP, lc_idP, rb_idP);
gauthier's avatar
gauthier committed
1161
    } else {
1162
        LOG_I(PDCP,"[eNB %d] Config request for UE %d: %s: Frame %d service_id/mch index %d, session_id/lcid %d, rbid %d configured\n",
1163
            enb_mod_idP, ue_mod_idP, actionP == CONFIG_ACTION_MBMS_ADD ? "CONFIG_ACTION_MBMS_ADD" : "CONFIG_ACTION_MBMS_MODIFY", frameP, mch_idP, lc_idP, rb_idP);
gauthier's avatar
gauthier committed
1164 1165
    }
    if (enb_flagP == 1) {
1166
        pdcp_mbms_array_eNB[enb_mod_idP][mch_idP][lc_idP].instanciated_instance = TRUE ;
gauthier's avatar
gauthier committed
1167
        pdcp_mbms_array_eNB[enb_mod_idP][mch_idP][lc_idP].rb_id = rb_idP;
gauthier's avatar
gauthier committed
1168
    } else {
1169 1170
        pdcp_mbms_array_ue[ue_mod_idP][mch_idP][lc_idP].instanciated_instance = TRUE ;
        pdcp_mbms_array_ue[ue_mod_idP][mch_idP][lc_idP].rb_id = rb_idP;
gauthier's avatar
gauthier committed
1171 1172
    }
    break;
gauthier's avatar
gauthier committed
1173
#endif
1174
  case CONFIG_ACTION_SET_SECURITY_MODE:
gauthier's avatar
gauthier committed
1175 1176 1177 1178 1179
    pdcp_config_set_security(pdcp_pP, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, rb_idP, lc_idP, security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP);
    break;
  default:
    DevParam(actionP, enb_mod_idP, ue_mod_idP);
    break;
1180 1181 1182
  }
  return 0;
}
1183

gauthier's avatar
gauthier committed
1184 1185 1186 1187
void pdcp_config_set_security(pdcp_t    *pdcp_pP,
    module_id_t     enb_mod_idP,
    module_id_t     ue_mod_idP,
    frame_t    frameP,
1188
    eNB_flag_t enb_flagP,
gauthier's avatar
gauthier committed
1189
    rb_id_t    rb_idP,
1190 1191 1192 1193 1194
    uint16_t        lc_idP,
    uint8_t         security_modeP,
    uint8_t        *kRRCenc,
    uint8_t        *kRRCint,
    uint8_t        *kUPenc)
1195
{
gauthier's avatar
gauthier committed
1196
  DevAssert(pdcp_pP != NULL);
1197

gauthier's avatar
gauthier committed
1198 1199 1200
  if ((security_modeP >= 0) && (security_modeP <= 0x77)) {
      pdcp_pP->cipheringAlgorithm     = security_modeP & 0x0f;
      pdcp_pP->integrityProtAlgorithm = (security_modeP>>4) & 0xf;
1201

1202 1203
      if (enb_flagP == ENB_FLAG_NO) {
          LOG_D(PDCP,"[UE %d][RB %02d] Set security mode : CONFIG_ACTION_SET_SECURITY_MODE: "
gauthier's avatar
gauthier committed
1204 1205 1206
              "Frame %d  cipheringAlgorithm %d integrityProtAlgorithm %d\n",
              ue_mod_idP, rb_idP, frameP, pdcp_pP->cipheringAlgorithm, pdcp_pP->integrityProtAlgorithm);
      } else {
1207
          LOG_D(PDCP,"[eNB %d][UE %d][RB %02d] Set security mode : CONFIG_ACTION_SET_SECURITY_MODE: "
gauthier's avatar
gauthier committed
1208 1209 1210 1211 1212 1213
              "Frame %d  cipheringAlgorithm %d integrityProtAlgorithm %d\n",
              enb_mod_idP, ue_mod_idP, rb_idP, frameP, pdcp_pP->cipheringAlgorithm, pdcp_pP->integrityProtAlgorithm);
      }
      pdcp_pP->kRRCenc = kRRCenc;
      pdcp_pP->kRRCint = kRRCint;
      pdcp_pP->kUPenc  = kUPenc;
1214

gauthier's avatar
gauthier committed
1215 1216
      /* Activate security */
      pdcp_pP->security_activated = 1;
1217
  } else {
gauthier's avatar
gauthier committed
1218
      LOG_E(PDCP,"[%s %d] bad security mode %d", security_modeP);
1219
  }
1220 1221
}

1222
void rrc_pdcp_config_req (module_id_t enb_mod_idP, module_id_t ue_mod_idP, frame_t frameP, eNB_flag_t enb_flagP, uint32_t actionP, rb_id_t rb_idP, uint8_t security_modeP)
1223
{