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63b64d4fcee6ed35a016f489a342e3f278241ba7
openairinterface5g/openair2/RRC/LTE/L2_interface.c
T
Laurent THOMAS 63b64d4fce move common code file in common directory 
remove several unused files
remove mem_block_t that is never used in a different way than a simple heap buffer
move up IP address type and remove duplications of the same struct declaration
2023-12-19 10:37:10 +01:00

426 lines
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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
*/
/*! \file L2_interface.c
* \brief layer 2 interface, added support for FeMBMS RRC sublayer
* \author Javier Morgade
* \date 2020
* \version 1.0
* \email: javier.morgade@ieee.org
*/
#include "common/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 "common/ran_context.h"
#include "uper_encoder.h"
#include "intertask_interface.h"
extern RAN_CONTEXT_t RC;
//------------------------------------------------------------------------------
int8_t
mac_rrc_data_req(
const module_id_t Mod_idP,
const int CC_id,
const frame_t frameP,
const rb_id_t Srb_id,
const rnti_t rnti,
const uint8_t Nb_tb,
uint8_t *const buffer_pP,
const uint8_t mbsfn_sync_area
)
//--------------------------------------------------------------------------
{
asn_enc_rval_t enc_rval;
SRB_INFO *Srb_info;
uint8_t Sdu_size = 0;
uint8_t sfn = (uint8_t)((frameP>>2)&0xff);
uint8_t sfn_fembms = (uint8_t)((frameP>>4)&0xff);
sfn_fembms = sfn_fembms<<2;
if (LOG_DEBUGFLAG(DEBUG_RRC)) {
LOG_D(RRC,"[eNB %d] mac_rrc_data_req to SRB ID=%ld\n",Mod_idP,Srb_id);
}
eNB_RRC_INST *rrc;
rrc_eNB_carrier_data_t *carrier;
LTE_BCCH_BCH_Message_t *mib;
LTE_BCCH_BCH_Message_MBMS_t *mib_fembms;
rrc = RC.rrc[Mod_idP];
carrier = &rrc->carrier[0];
mib = &carrier->mib;
mib_fembms = &carrier->mib_fembms;
if((Srb_id & RAB_OFFSET) == BCCH_SI_MBMS){
if (frameP%8 == 0) {
memcpy(&buffer_pP[0],
RC.rrc[Mod_idP]->carrier[CC_id].SIB1_MBMS,
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1_MBMS);
if (LOG_DEBUGFLAG(DEBUG_RRC)) {
LOG_T(RRC,"[eNB %d] Frame %d : BCCH request => SIB 1 MBMS\n",Mod_idP,frameP);
for (int i=0; i<RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1_MBMS; i++) {
LOG_T(RRC,"%x.",buffer_pP[i]);
}
LOG_T(RRC,"\n");
} /* LOG_DEBUGFLAG(DEBUG_RRC) */
return (RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1_MBMS);
}
}
if((Srb_id & RAB_OFFSET) == BCCH) {
if(RC.rrc[Mod_idP]->carrier[CC_id].SI.Active==0) {
return 0;
}
// All even frames transmit SIB in SF 5
AssertFatal(RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1 != 255,
"[eNB %d] MAC Request for SIB1 and SIB1 not initialized\n",Mod_idP);
if ((frameP%2) == 0) {
memcpy(&buffer_pP[0],
RC.rrc[Mod_idP]->carrier[CC_id].SIB1,
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1);
if (LOG_DEBUGFLAG(DEBUG_RRC)) {
LOG_T(RRC,"[eNB %d] Frame %d : BCCH request => SIB 1\n",Mod_idP,frameP);
for (int i=0; i<RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1; i++) {
LOG_T(RRC,"%x.",buffer_pP[i]);
}
LOG_T(RRC,"\n");
} /* LOG_DEBUGFLAG(DEBUG_RRC) */
return (RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1);
} // All RFN mod 8 transmit SIB2-3 in SF 5
else if ((frameP%8) == 1) {
memcpy(&buffer_pP[0],
RC.rrc[Mod_idP]->carrier[CC_id].SIB23,
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB23);
if (LOG_DEBUGFLAG(DEBUG_RRC)) {
LOG_T(RRC,"[eNB %d] Frame %d BCCH request => SIB 2-3\n",Mod_idP,frameP);
for (int i=0; i<RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB23; i++) {
LOG_T(RRC,"%x.",buffer_pP[i]);
}
LOG_T(RRC,"\n");
} /* LOG_DEBUGFLAG(DEBUG_RRC) */
return(RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB23);
} else {
return(0);
}
}
if( (Srb_id & RAB_OFFSET ) == MIBCH) {
mib->message.systemFrameNumber.buf = &sfn;
enc_rval = uper_encode_to_buffer(&asn_DEF_LTE_BCCH_BCH_Message,
NULL,
(void *)mib,
carrier->MIB,
24);
LOG_D(RRC,"Encoded MIB for frame %d (%p), bits %lu\n",sfn,carrier->MIB,enc_rval.encoded);
buffer_pP[0]=carrier->MIB[0];
buffer_pP[1]=carrier->MIB[1];
buffer_pP[2]=carrier->MIB[2];
AssertFatal (enc_rval.encoded > 0, "ASN1 message encoding failed (%s, %lu)!\n",
enc_rval.failed_type->name, enc_rval.encoded);
return(3);
}
if( (Srb_id & RAB_OFFSET ) == MIBCH_MBMS) {
mib_fembms->message.systemFrameNumber_r14.buf = &sfn_fembms;
enc_rval = uper_encode_to_buffer(&asn_DEF_LTE_BCCH_BCH_Message_MBMS,
NULL,
(void *)mib_fembms,
carrier->MIB_FeMBMS,
24);
LOG_I(RRC,"Encoded MIB MBMS for frame %d (%p), bits %lu %x,%x,%x %x bits_unused %d\n",sfn_fembms>>2,carrier->MIB_FeMBMS,enc_rval.encoded,carrier->MIB_FeMBMS[0],carrier->MIB_FeMBMS[1],carrier->MIB_FeMBMS[2],mib_fembms->message.systemFrameNumber_r14.buf[0],mib_fembms->message.systemFrameNumber_r14.bits_unused);
buffer_pP[0]=carrier->MIB_FeMBMS[0];
buffer_pP[1]=carrier->MIB_FeMBMS[1];
buffer_pP[2]=carrier->MIB_FeMBMS[2];
AssertFatal (enc_rval.encoded > 0, "ASN1 message encoding failed (%s, %lu)!\n",
enc_rval.failed_type->name, enc_rval.encoded);
return(3);
}
if( (Srb_id & RAB_OFFSET ) == CCCH) {
struct rrc_eNB_ue_context_s *ue_context_p = rrc_eNB_get_ue_context(RC.rrc[Mod_idP],rnti);
if (ue_context_p == NULL) return(0);
eNB_RRC_UE_t *ue_p = &ue_context_p->ue_context;
LOG_T(RRC,"[eNB %d] Frame %d CCCH request (Srb_id %ld, rnti %x)\n",Mod_idP,frameP, Srb_id,rnti);
Srb_info=&ue_p->Srb0;
// check if data is there for MAC
if(Srb_info->Tx_buffer.payload_size>0) { //Fill buffer
LOG_D(RRC,"[eNB %d] CCCH (%p) has %d bytes (dest: %p, src %p)\n",Mod_idP,Srb_info,Srb_info->Tx_buffer.payload_size,buffer_pP,Srb_info->Tx_buffer.Payload);
memcpy(buffer_pP,Srb_info->Tx_buffer.Payload,Srb_info->Tx_buffer.payload_size);
Sdu_size = Srb_info->Tx_buffer.payload_size;
Srb_info->Tx_buffer.payload_size=0;
}
return (Sdu_size);
}
if( (Srb_id & RAB_OFFSET ) == PCCH) {
LOG_T(RRC,"[eNB %d] Frame %d PCCH request (Srb_id %ld)\n",Mod_idP,frameP, Srb_id);
// check if data is there for MAC
if(RC.rrc[Mod_idP]->carrier[CC_id].sizeof_paging[mbsfn_sync_area] > 0) { //Fill buffer
LOG_D(RRC,"[eNB %d] PCCH (%p) has %d bytes\n",Mod_idP,&RC.rrc[Mod_idP]->carrier[CC_id].paging[mbsfn_sync_area],
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_paging[mbsfn_sync_area]);
memcpy(buffer_pP, RC.rrc[Mod_idP]->carrier[CC_id].paging[mbsfn_sync_area], RC.rrc[Mod_idP]->carrier[CC_id].sizeof_paging[mbsfn_sync_area]);
Sdu_size = RC.rrc[Mod_idP]->carrier[CC_id].sizeof_paging[mbsfn_sync_area];
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_paging[mbsfn_sync_area] = 0;
}
return (Sdu_size);
}
if((Srb_id & RAB_OFFSET) == MCCH) {
if(RC.rrc[Mod_idP]->carrier[CC_id].MCCH_MESS[mbsfn_sync_area].Active==0) {
return 0; // this parameter is set in function init_mcch in rrc_eNB.c
}
memcpy(&buffer_pP[0],
RC.rrc[Mod_idP]->carrier[CC_id].MCCH_MESSAGE[mbsfn_sync_area],
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_MCCH_MESSAGE[mbsfn_sync_area]);
LOG_D(RRC,"[eNB %d] Frame %d : MCCH request => MCCH_MESSAGE \n",Mod_idP,frameP);
if (LOG_DEBUGFLAG(DEBUG_RRC)) {
LOG_D(RRC,"[eNB %d] Frame %d : MCCH request => MCCH_MESSAGE \n",Mod_idP,frameP);
for (int i=0; i<RC.rrc[Mod_idP]->carrier[CC_id].sizeof_MCCH_MESSAGE[mbsfn_sync_area]; i++) {
LOG_T(RRC,"%x.",buffer_pP[i]);
}
LOG_T(RRC,"\n");
} /* LOG_DEBUGFLAG(DEBUG_RRC) */
return (RC.rrc[Mod_idP]->carrier[CC_id].sizeof_MCCH_MESSAGE[mbsfn_sync_area]);
}
if((Srb_id & RAB_OFFSET) == MCCH_COUNTING) {
if(RC.rrc[Mod_idP]->carrier[CC_id].MCCH_MESS_COUNTING[mbsfn_sync_area].Active==0) {
return 0; // this parameter is set in function init_mcch in rrc_eNB.c
}
memcpy(&buffer_pP[0],
RC.rrc[Mod_idP]->carrier[CC_id].MCCH_MESSAGE_COUNTING[mbsfn_sync_area],
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_MCCH_MESSAGE_COUNTING[mbsfn_sync_area]);
if (LOG_DEBUGFLAG(DEBUG_RRC)) {
LOG_W(RRC,"[eNB %d] Frame %d : MCCH request => MCCH_MESSAGE_COUNTING \n",Mod_idP,frameP);
for (int i=0; i<RC.rrc[Mod_idP]->carrier[CC_id].sizeof_MCCH_MESSAGE_COUNTING[mbsfn_sync_area]; i++) {
LOG_T(RRC,"%x.",buffer_pP[i]);
}
LOG_T(RRC,"\n");
} /* LOG_DEBUGFLAG(DEBUG_RRC) */
return (RC.rrc[Mod_idP]->carrier[CC_id].sizeof_MCCH_MESSAGE_COUNTING[mbsfn_sync_area]);
}
if ((Srb_id & RAB_OFFSET) == BCCH_SIB1_BR) {
memcpy(&buffer_pP[0],
RC.rrc[Mod_idP]->carrier[CC_id].SIB1_BR,
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1_BR);
return (RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB1_BR);
}
if ((Srb_id & RAB_OFFSET) == BCCH_SI_BR) { // First SI message with SIB2/3
memcpy(&buffer_pP[0],
RC.rrc[Mod_idP]->carrier[CC_id].SIB23_BR,
RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB23_BR);
return (RC.rrc[Mod_idP]->carrier[CC_id].sizeof_SIB23_BR);
}
return(0);
}
//------------------------------------------------------------------------------
int8_t
mac_rrc_data_ind(
const module_id_t module_idP,
const int CC_id,
const frame_t frameP,
const sub_frame_t sub_frameP,
const int UE_id,
const rnti_t rntiP,
const rb_id_t srb_idP,
const uint8_t *sduP,
const sdu_size_t sdu_lenP,
const uint8_t mbsfn_sync_areaP,
const bool brOption
)
//--------------------------------------------------------------------------
{
//SRB_INFO *Srb_info;
protocol_ctxt_t ctxt;
sdu_size_t sdu_size = 0;
/* for no gcc warnings */
(void)sdu_size;
/*
int si_window;
*/
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, ENB_FLAG_YES, rntiP, frameP, sub_frameP,0);
if((srb_idP & RAB_OFFSET) == CCCH) {
LOG_D(RRC, "[eNB %d] Received SDU for CCCH on SRB %ld\n", module_idP, srb_idP);
ctxt.brOption = brOption;
/*Srb_info = &RC.rrc[module_idP]->carrier[CC_id].Srb0;
if (sdu_lenP > 0) {
memcpy(Srb_info->Rx_buffer.Payload,sduP,sdu_lenP);
Srb_info->Rx_buffer.payload_size = sdu_lenP;
rrc_eNB_decode_ccch(&ctxt, Srb_info, CC_id);
}*/
if (sdu_lenP > 0) rrc_eNB_decode_ccch(&ctxt, sduP, sdu_lenP, CC_id);
}
if((srb_idP & RAB_OFFSET) == DCCH) {
struct rrc_eNB_ue_context_s *ue_context_p = NULL;
ue_context_p = rrc_eNB_get_ue_context(RC.rrc[ctxt.module_id],rntiP);
if(ue_context_p) {
if (ue_context_p->ue_context.StatusRrc != RRC_RECONFIGURED) {
LOG_E(RRC,"[eNB %d] Received C-RNTI ,but UE %x status(%d) not RRC_RECONFIGURED\n",module_idP,rntiP,ue_context_p->ue_context.StatusRrc);
return (-1);
}
rrc_eNB_generate_defaultRRCConnectionReconfiguration(&ctxt,ue_context_p,0);
ue_context_p->ue_context.StatusRrc = RRC_RECONFIGURED;
}
}
return(0);
}
//------------------------------------------------------------------------------
/*
* Get RRC status (Connected, Idle...) of UE from RNTI
*/
int
mac_eNB_get_rrc_status(
const module_id_t Mod_idP,
const rnti_t rntiP
)
//------------------------------------------------------------------------------
{
struct rrc_eNB_ue_context_s *ue_context_p = NULL;
ue_context_p = rrc_eNB_get_ue_context(RC.rrc[Mod_idP], rntiP);
if (ue_context_p != NULL) {
return(ue_context_p->ue_context.StatusRrc);
} else {
return RRC_INACTIVE;
}
}
void mac_eNB_rrc_ul_failure(const module_id_t Mod_instP,
const int CC_idP,
const frame_t frameP,
const sub_frame_t subframeP,
const rnti_t rntiP) {
struct rrc_eNB_ue_context_s *ue_context_p = NULL;
ue_context_p = rrc_eNB_get_ue_context(
RC.rrc[Mod_instP],
rntiP);
if (ue_context_p != NULL) {
LOG_I(RRC,"Frame %d, Subframe %d: UE %x UL failure, activating timer\n",frameP,subframeP,rntiP);
if(ue_context_p->ue_context.ul_failure_timer == 0)
ue_context_p->ue_context.ul_failure_timer=1;
} else {
LOG_W(RRC,"Frame %d, Subframe %d: UL failure: UE %x unknown \n",frameP,subframeP,rntiP);
}
//rrc_mac_remove_ue(Mod_instP,rntiP);
}
void mac_eNB_rrc_uplane_failure(const module_id_t Mod_instP,
const int CC_idP,
const frame_t frameP,
const sub_frame_t subframeP,
const rnti_t rntiP) {
struct rrc_eNB_ue_context_s *ue_context_p = NULL;
ue_context_p = rrc_eNB_get_ue_context(
RC.rrc[Mod_instP],
rntiP);
if (ue_context_p != NULL) {
LOG_I(RRC,"Frame %d, Subframe %d: UE %x U-Plane failure, activating timer\n",frameP,subframeP,rntiP);
if(ue_context_p->ue_context.ul_failure_timer == 0)
ue_context_p->ue_context.ul_failure_timer=19999;
} else {
LOG_W(RRC,"Frame %d, Subframe %d: U-Plane failure: UE %x unknown \n",frameP,subframeP,rntiP);
}
}
void mac_eNB_rrc_ul_in_sync(const module_id_t Mod_instP,
const int CC_idP,
const frame_t frameP,
const sub_frame_t subframeP,
const rnti_t rntiP) {
struct rrc_eNB_ue_context_s *ue_context_p = NULL;
ue_context_p = rrc_eNB_get_ue_context(
RC.rrc[Mod_instP],
rntiP);
if (ue_context_p != NULL) {
LOG_I(RRC,"Frame %d, Subframe %d: UE %x to UL in synch\n",
frameP, subframeP, rntiP);
ue_context_p->ue_context.ul_failure_timer = 0;
} else {
LOG_E(RRC,"Frame %d, Subframe %d: UE %x unknown \n",
frameP, subframeP, rntiP);
}
}
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