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;
gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
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
       */
gauthier's avatar
gauthier committed
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
  }
gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
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);

gauthier's avatar
gauthier committed
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);
gauthier's avatar
gauthier committed
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,
gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
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
gauthier's avatar
gauthier committed
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,
gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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;

gauthier's avatar
gauthier committed
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

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

gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
867
868
          if (pdcp_p->instanciated_instance == TRUE)
            action = CONFIG_ACTION_MODIFY;
gauthier's avatar
gauthier committed
869
          else
gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
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];
          }
gauthier's avatar
gauthier committed
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
gauthier's avatar
gauthier committed
983
984
                if (pdcp_mbms_array_eNB[enb_mod_idP][mch_id][lc_id].instanciated_instance == TRUE)
                  action = CONFIG_ACTION_MBMS_MODIFY;
985
                else
gauthier's avatar
gauthier committed
986
                  action = CONFIG_ACTION_MBMS_ADD;
987
              } else {
gauthier's avatar
gauthier committed
988
                rb_id =  (mch_id * maxSessionPerPMCH ) + lc_id + (maxDRB + 3); // 15
gauthier's avatar
gauthier committed
989
990
                if (pdcp_mbms_array_ue[ue_mod_idP][mch_id][lc_id].instanciated_instance == TRUE)
                  action = CONFIG_ACTION_MBMS_MODIFY;
991
                else
gauthier's avatar
gauthier committed
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,
gauthier's avatar
gauthier committed
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,
gauthier's avatar
gauthier committed
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) {
gauthier's avatar
gauthier committed
1044
  case CONFIG_ACTION_ADD:
gauthier's avatar
gauthier committed
1045
    DevAssert(pdcp_pP != NULL);
gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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

gauthier's avatar
gauthier committed
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;
gauthier's avatar
gauthier committed
1119
  case CONFIG_ACTION_REMOVE:
gauthier's avatar
gauthier committed
1120
    DevAssert(pdcp_pP != NULL);
gauthier's avatar
gauthier committed
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;

gauthier's avatar
gauthier committed
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 {
gauthier's avatar
gauthier committed
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)
gauthier's avatar
gauthier committed
1156
1157
1158
  case CONFIG_ACTION_MBMS_ADD:
  case CONFIG_ACTION_MBMS_MODIFY:
    if (enb_flagP == ENB_FLAG_NO) {