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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file l2_interface.c
* \brief layer 2 interface, used to support different RRC sublayer
* \author Raymond Knopp and Navid Nikaein
* \date 2010-2014
* \version 1.0
* \company Eurecom
* \email: raymond.knopp@eurecom.fr
*/
#include "platform_types.h"
#include "rrc_defs.h"
#include "rrc_extern.h"
#include "common/utils/LOG/log.h"
#include "rrc_eNB_UE_context.h"
#include "pdcp.h"
#include "msc.h"
#include "common/ran_context.h"
#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif
//#define RRC_DATA_REQ_DEBUG
//#define DEBUG_RRC 1
//------------------------------------------------------------------------------
uint8_t
rrc_data_req(
const protocol_ctxt_t* const ctxt_pP,
const rb_id_t rb_idP,
const mui_t muiP,
const confirm_t confirmP,
const sdu_size_t sdu_sizeP,
uint8_t* const buffer_pP,
const pdcp_transmission_mode_t modeP
)
//------------------------------------------------------------------------------
{
if(sdu_sizeP == 255)
{
LOG_I(RRC,"sdu_sizeP == 255");
return FALSE;
}
MSC_LOG_TX_MESSAGE(
ctxt_pP->enb_flag ? MSC_RRC_ENB : MSC_RRC_UE,
ctxt_pP->enb_flag ? MSC_PDCP_ENB : MSC_PDCP_UE,
buffer_pP,
sdu_sizeP,
MSC_AS_TIME_FMT"RRC_DCCH_DATA_REQ UE %x MUI %d size %u",
MSC_AS_TIME_ARGS(ctxt_pP),
ctxt_pP->rnti,
muiP,
sdu_sizeP);
#if defined(ENABLE_ITTI)
{
MessageDef *message_p;
// Uses a new buffer to avoid issue with PDCP buffer content that could be changed by PDCP (asynchronous message handling).
uint8_t *message_buffer;
message_buffer = itti_malloc (
ctxt_pP->enb_flag ? TASK_RRC_ENB : TASK_RRC_UE,
ctxt_pP->enb_flag ? TASK_PDCP_ENB : TASK_PDCP_UE,
sdu_sizeP);
memcpy (message_buffer, buffer_pP, sdu_sizeP);
message_p = itti_alloc_new_message (ctxt_pP->enb_flag ? TASK_RRC_ENB : TASK_RRC_UE, RRC_DCCH_DATA_REQ);
RRC_DCCH_DATA_REQ (message_p).frame = ctxt_pP->frame;
RRC_DCCH_DATA_REQ (message_p).enb_flag = ctxt_pP->enb_flag;
RRC_DCCH_DATA_REQ (message_p).rb_id = rb_idP;
RRC_DCCH_DATA_REQ (message_p).muip = muiP;
RRC_DCCH_DATA_REQ (message_p).confirmp = confirmP;
RRC_DCCH_DATA_REQ (message_p).sdu_size = sdu_sizeP;
RRC_DCCH_DATA_REQ (message_p).sdu_p = message_buffer;
//memcpy (RRC_DCCH_DATA_REQ (message_p).sdu_p, buffer_pP, sdu_sizeP);
RRC_DCCH_DATA_REQ (message_p).mode = modeP;
RRC_DCCH_DATA_REQ (message_p).module_id = ctxt_pP->module_id;
RRC_DCCH_DATA_REQ (message_p).rnti = ctxt_pP->rnti;
RRC_DCCH_DATA_REQ (message_p).eNB_index = ctxt_pP->eNB_index;
itti_send_msg_to_task (
ctxt_pP->enb_flag ? TASK_PDCP_ENB : TASK_PDCP_UE,
ctxt_pP->instance,
message_p);
LOG_I(RRC,"sent RRC_DCCH_DATA_REQ to TASK_PDCP_ENB\n");
// RS/BK: Fix ME
pdcp_run(ctxt_pP);
return TRUE; // TODO should be changed to a CNF message later, currently RRC lite does not used the returned value anyway.
}
#else
return pdcp_data_req (
ctxt_pP,
SRB_FLAG_YES,
rb_idP,
muiP,
confirmP,
sdu_sizeP,
buffer_pP,
modeP);
#endif
}
//------------------------------------------------------------------------------
void
rrc_data_ind(
const protocol_ctxt_t* const ctxt_pP,
const rb_id_t Srb_id,
const sdu_size_t sdu_sizeP,
const uint8_t* const buffer_pP
)
//------------------------------------------------------------------------------
{
rb_id_t DCCH_index = Srb_id;
if (ctxt_pP->enb_flag == ENB_FLAG_NO) {
LOG_I(RRC, "[UE %x] Frame %d: received a DCCH %d message on SRB %d with Size %d from eNB %d\n",
ctxt_pP->module_id, ctxt_pP->frame, DCCH_index,Srb_id,sdu_sizeP, ctxt_pP->eNB_index);
} else {
LOG_I(RRC, "[eNB %d] Frame %d: received a DCCH %d message on SRB %d with Size %d from UE %x\n",
ctxt_pP->module_id,
ctxt_pP->frame,
DCCH_index,
Srb_id,
sdu_sizeP,
ctxt_pP->rnti);
}
#if defined(ENABLE_ITTI)
{
MessageDef *message_p;
// Uses a new buffer to avoid issue with PDCP buffer content that could be changed by PDCP (asynchronous message handling).
uint8_t *message_buffer;
message_buffer = itti_malloc (ctxt_pP->enb_flag ? TASK_PDCP_ENB : TASK_PDCP_UE, ctxt_pP->enb_flag ? TASK_RRC_ENB : TASK_RRC_UE, sdu_sizeP);
memcpy (message_buffer, buffer_pP, sdu_sizeP);
message_p = itti_alloc_new_message (ctxt_pP->enb_flag ? TASK_PDCP_ENB : TASK_PDCP_UE, RRC_DCCH_DATA_IND);
RRC_DCCH_DATA_IND (message_p).frame = ctxt_pP->frame;
RRC_DCCH_DATA_IND (message_p).dcch_index = DCCH_index;
RRC_DCCH_DATA_IND (message_p).sdu_size = sdu_sizeP;
RRC_DCCH_DATA_IND (message_p).sdu_p = message_buffer;
RRC_DCCH_DATA_IND (message_p).rnti = ctxt_pP->rnti;
RRC_DCCH_DATA_IND (message_p).module_id = ctxt_pP->module_id;
RRC_DCCH_DATA_IND (message_p).eNB_index = ctxt_pP->eNB_index;
itti_send_msg_to_task (ctxt_pP->enb_flag ? TASK_RRC_ENB : TASK_RRC_UE, ctxt_pP->instance, message_p);
}
#else
rrc_eNB_decode_dcch(
ctxt_pP,
DCCH_index,
buffer_pP,
sdu_sizeP);
#endif
}