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openairinterface5g/openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c
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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
*/
#include "nr_pdcp_ue_manager.h"
#include "NR_RadioBearerConfig.h"
#include "NR_RLC-BearerConfig.h"
#include "NR_CellGroupConfig.h"
#include "openair2/RRC/NR/nr_rrc_proto.h"
/* from OAI */
#include "pdcp.h"
#define TODO do { \
printf("%s:%d:%s: todo\n", __FILE__, __LINE__, __FUNCTION__); \
exit(1); \
} while (0)
static nr_pdcp_ue_manager_t *nr_pdcp_ue_manager;
/* necessary globals for OAI, not used internally */
hash_table_t *pdcp_coll_p;
static uint64_t pdcp_optmask;
/****************************************************************************/
/* rlc_data_req queue - begin */
/****************************************************************************/
#include <pthread.h>
/* NR PDCP and RLC both use "big locks". In some cases a thread may do
* lock(rlc) followed by lock(pdcp) (typically when running 'rx_sdu').
* Another thread may first do lock(pdcp) and then lock(rlc) (typically
* the GTP module calls 'pdcp_data_req' that, in a previous implementation
* was indirectly calling 'rlc_data_req' which does lock(rlc)).
* To avoid the resulting deadlock it is enough to ensure that a call
* to lock(pdcp) will never be followed by a call to lock(rlc). So,
* here we chose to have a separate thread that deals with rlc_data_req,
* out of the PDCP lock. Other solutions may be possible.
* So instead of calling 'rlc_data_req' directly we have a queue and a
* separate thread emptying it.
*/
typedef struct {
protocol_ctxt_t ctxt_pP;
srb_flag_t srb_flagP;
MBMS_flag_t MBMS_flagP;
rb_id_t rb_idP;
mui_t muiP;
confirm_t confirmP;
sdu_size_t sdu_sizeP;
mem_block_t *sdu_pP;
} rlc_data_req_queue_item;
#define RLC_DATA_REQ_QUEUE_SIZE 10000
typedef struct {
rlc_data_req_queue_item q[RLC_DATA_REQ_QUEUE_SIZE];
volatile int start;
volatile int length;
pthread_mutex_t m;
pthread_cond_t c;
} rlc_data_req_queue;
static rlc_data_req_queue q;
extern rlc_op_status_t nr_rrc_rlc_config_asn1_req (const protocol_ctxt_t * const ctxt_pP,
const NR_SRB_ToAddModList_t * const srb2add_listP,
const NR_DRB_ToAddModList_t * const drb2add_listP,
const NR_DRB_ToReleaseList_t * const drb2release_listP,
const LTE_PMCH_InfoList_r9_t * const pmch_InfoList_r9_pP,
struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_bearer2add_list);
static void *rlc_data_req_thread(void *_)
{
int i;
while (1) {
if (pthread_mutex_lock(&q.m) != 0) abort();
while (q.length == 0)
if (pthread_cond_wait(&q.c, &q.m) != 0) abort();
i = q.start;
if (pthread_mutex_unlock(&q.m) != 0) abort();
rlc_data_req(&q.q[i].ctxt_pP,
q.q[i].srb_flagP,
q.q[i].MBMS_flagP,
q.q[i].rb_idP,
q.q[i].muiP,
q.q[i].confirmP,
q.q[i].sdu_sizeP,
q.q[i].sdu_pP,
NULL,
NULL);
if (pthread_mutex_lock(&q.m) != 0) abort();
q.length--;
q.start = (q.start + 1) % RLC_DATA_REQ_QUEUE_SIZE;
if (pthread_cond_signal(&q.c) != 0) abort();
if (pthread_mutex_unlock(&q.m) != 0) abort();
}
}
static void init_nr_rlc_data_req_queue(void)
{
pthread_t t;
pthread_mutex_init(&q.m, NULL);
pthread_cond_init(&q.c, NULL);
if (pthread_create(&t, NULL, rlc_data_req_thread, NULL) != 0) {
LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
}
static void enqueue_rlc_data_req(const protocol_ctxt_t *const ctxt_pP,
const srb_flag_t srb_flagP,
const MBMS_flag_t MBMS_flagP,
const rb_id_t rb_idP,
const mui_t muiP,
confirm_t confirmP,
sdu_size_t sdu_sizeP,
mem_block_t *sdu_pP,
void *_unused1, void *_unused2)
{
int i;
int logged = 0;
if (pthread_mutex_lock(&q.m) != 0) abort();
while (q.length == RLC_DATA_REQ_QUEUE_SIZE) {
if (!logged) {
logged = 1;
LOG_W(PDCP, "%s: rlc_data_req queue is full\n", __FUNCTION__);
}
if (pthread_cond_wait(&q.c, &q.m) != 0) abort();
}
i = (q.start + q.length) % RLC_DATA_REQ_QUEUE_SIZE;
q.length++;
q.q[i].ctxt_pP = *ctxt_pP;
q.q[i].srb_flagP = srb_flagP;
q.q[i].MBMS_flagP = MBMS_flagP;
q.q[i].rb_idP = rb_idP;
q.q[i].muiP = muiP;
q.q[i].confirmP = confirmP;
q.q[i].sdu_sizeP = sdu_sizeP;
q.q[i].sdu_pP = sdu_pP;
if (pthread_cond_signal(&q.c) != 0) abort();
if (pthread_mutex_unlock(&q.m) != 0) abort();
}
/****************************************************************************/
/* rlc_data_req queue - end */
/****************************************************************************/
/****************************************************************************/
/* hacks to be cleaned up at some point - begin */
/****************************************************************************/
#include "LAYER2/MAC/mac_extern.h"
static void reblock_tun_socket(void)
{
extern int nas_sock_fd[];
int f;
f = fcntl(nas_sock_fd[0], F_GETFL, 0);
f &= ~(O_NONBLOCK);
if (fcntl(nas_sock_fd[0], F_SETFL, f) == -1) {
LOG_E(PDCP, "reblock_tun_socket failed\n");
exit(1);
}
}
static void *enb_tun_read_thread(void *_)
{
extern int nas_sock_fd[];
char rx_buf[NL_MAX_PAYLOAD];
int len;
int rnti;
protocol_ctxt_t ctxt;
int rb_id = 1;
while (1) {
len = read(nas_sock_fd[0], &rx_buf, NL_MAX_PAYLOAD);
if (len == -1) {
LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
printf("\n\n\n########## nas_sock_fd read returns len %d\n", len);
nr_pdcp_manager_lock(nr_pdcp_ue_manager);
rnti = nr_pdcp_get_first_rnti(nr_pdcp_ue_manager);
nr_pdcp_manager_unlock(nr_pdcp_ue_manager);
if (rnti == -1) continue;
ctxt.module_id = 0;
ctxt.enb_flag = 1;
ctxt.instance = 0;
ctxt.frame = 0;
ctxt.subframe = 0;
ctxt.eNB_index = 0;
ctxt.configured = 1;
ctxt.brOption = 0;
ctxt.rnti = rnti;
pdcp_data_req(&ctxt, SRB_FLAG_NO, rb_id, RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO, len, (unsigned char *)rx_buf,
PDCP_TRANSMISSION_MODE_DATA, NULL, NULL);
}
return NULL;
}
static void *ue_tun_read_thread(void *_)
{
extern int nas_sock_fd[];
char rx_buf[NL_MAX_PAYLOAD];
int len;
int rnti;
protocol_ctxt_t ctxt;
int rb_id = 1;
while (1) {
len = read(nas_sock_fd[0], &rx_buf, NL_MAX_PAYLOAD);
if (len == -1) {
LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
printf("\n\n\n########## nas_sock_fd read returns len %d\n", len);
nr_pdcp_manager_lock(nr_pdcp_ue_manager);
rnti = nr_pdcp_get_first_rnti(nr_pdcp_ue_manager);
nr_pdcp_manager_unlock(nr_pdcp_ue_manager);
if (rnti == -1) continue;
ctxt.module_id = 0;
ctxt.enb_flag = 0;
ctxt.instance = 0;
ctxt.frame = 0;
ctxt.subframe = 0;
ctxt.eNB_index = 0;
ctxt.configured = 1;
ctxt.brOption = 0;
ctxt.rnti = rnti;
pdcp_data_req(&ctxt, SRB_FLAG_NO, rb_id, RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO, len, (unsigned char *)rx_buf,
PDCP_TRANSMISSION_MODE_DATA, NULL, NULL);
}
return NULL;
}
static void start_pdcp_tun_enb(void)
{
pthread_t t;
reblock_tun_socket();
if (pthread_create(&t, NULL, enb_tun_read_thread, NULL) != 0) {
LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
}
static void start_pdcp_tun_ue(void)
{
pthread_t t;
reblock_tun_socket();
if (pthread_create(&t, NULL, ue_tun_read_thread, NULL) != 0) {
LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
}
/****************************************************************************/
/* hacks to be cleaned up at some point - end */
/****************************************************************************/
int pdcp_fifo_flush_sdus(const protocol_ctxt_t *const ctxt_pP)
{
return 0;
}
void pdcp_layer_init(void)
{
/* hack: be sure to initialize only once */
static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
static int initialized = 0;
if (pthread_mutex_lock(&m) != 0) abort();
if (initialized) {
if (pthread_mutex_unlock(&m) != 0) abort();
return;
}
initialized = 1;
if (pthread_mutex_unlock(&m) != 0) abort();
nr_pdcp_ue_manager = new_nr_pdcp_ue_manager(1);
init_nr_rlc_data_req_queue();
}
#include "nfapi/oai_integration/vendor_ext.h"
#include "targets/RT/USER/lte-softmodem.h"
#include "openair2/RRC/NAS/nas_config.h"
uint64_t pdcp_module_init(uint64_t _pdcp_optmask)
{
/* hack: be sure to initialize only once */
static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
static int initialized = 0;
if (pthread_mutex_lock(&m) != 0) abort();
if (initialized) {
abort();
}
initialized = 1;
if (pthread_mutex_unlock(&m) != 0) abort();
#if 0
pdcp_optmask = _pdcp_optmask;
return pdcp_optmask;
#endif
/* temporary enforce netlink when UE_NAS_USE_TUN is set,
this is while switching from noS1 as build option
to noS1 as config option */
if ( _pdcp_optmask & UE_NAS_USE_TUN_BIT) {
pdcp_optmask = pdcp_optmask | PDCP_USE_NETLINK_BIT ;
}
pdcp_optmask = pdcp_optmask | _pdcp_optmask ;
LOG_I(PDCP, "pdcp init,%s %s\n",
((LINK_ENB_PDCP_TO_GTPV1U)?"usegtp":""),
((PDCP_USE_NETLINK)?"usenetlink":""));
if (PDCP_USE_NETLINK) {
nas_getparams();
if(UE_NAS_USE_TUN) {
int num_if = (NFAPI_MODE == NFAPI_UE_STUB_PNF || IS_SOFTMODEM_SIML1 )? MAX_MOBILES_PER_ENB : 1;
netlink_init_tun("ue",num_if);
//Add --nr-ip-over-lte option check for next line
if (IS_SOFTMODEM_NOS1)
nas_config(1, 1, 2, "ue");
LOG_I(PDCP, "UE pdcp will use tun interface\n");
start_pdcp_tun_ue();
} else if(ENB_NAS_USE_TUN) {
netlink_init_tun("enb",1);
nas_config(1, 1, 1, "enb");
LOG_I(PDCP, "ENB pdcp will use tun interface\n");
start_pdcp_tun_enb();
} else {
LOG_I(PDCP, "pdcp will use kernel modules\n");
abort();
netlink_init();
}
}
return pdcp_optmask ;
}
static void deliver_sdu_drb(void *_ue, nr_pdcp_entity_t *entity,
char *buf, int size)
{
extern int nas_sock_fd[];
int len;
nr_pdcp_ue_t *ue = _ue;
MessageDef *message_p;
uint8_t *gtpu_buffer_p;
int rb_id;
int i;
if(IS_SOFTMODEM_NOS1){
len = write(nas_sock_fd[0], buf, size);
if (len != size) {
LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
}
else{
for (i = 0; i < 5; i++) {
if (entity == ue->drb[i]) {
rb_id = i+1;
goto rb_found;
}
}
LOG_E(PDCP, "%s:%d:%s: fatal, no RB found for ue %d\n",
__FILE__, __LINE__, __FUNCTION__, ue->rnti);
exit(1);
rb_found:
gtpu_buffer_p = itti_malloc(TASK_PDCP_ENB, TASK_GTPV1_U,
size + GTPU_HEADER_OVERHEAD_MAX);
AssertFatal(gtpu_buffer_p != NULL, "OUT OF MEMORY");
memcpy(&gtpu_buffer_p[GTPU_HEADER_OVERHEAD_MAX], buf, size);
message_p = itti_alloc_new_message(TASK_PDCP_ENB, GTPV1U_ENB_TUNNEL_DATA_REQ);
AssertFatal(message_p != NULL, "OUT OF MEMORY");
GTPV1U_ENB_TUNNEL_DATA_REQ(message_p).buffer = gtpu_buffer_p;
GTPV1U_ENB_TUNNEL_DATA_REQ(message_p).length = size;
GTPV1U_ENB_TUNNEL_DATA_REQ(message_p).offset = GTPU_HEADER_OVERHEAD_MAX;
GTPV1U_ENB_TUNNEL_DATA_REQ(message_p).rnti = ue->rnti;
GTPV1U_ENB_TUNNEL_DATA_REQ(message_p).rab_id = rb_id + 4;
LOG_D(PDCP, "%s() (drb %d) sending message to gtp size %d\n", __func__, rb_id, size);
//for (i = 0; i < size; i++) printf(" %2.2x", (unsigned char)buf[i]);
//printf("\n");
itti_send_msg_to_task(TASK_GTPV1_U, INSTANCE_DEFAULT, message_p);
}
}
static void deliver_pdu_drb(void *_ue, nr_pdcp_entity_t *entity,
char *buf, int size, int sdu_id)
{
nr_pdcp_ue_t *ue = _ue;
int rb_id;
protocol_ctxt_t ctxt;
int i;
mem_block_t *memblock;
for (i = 0; i < 5; i++) {
if (entity == ue->drb[i]) {
rb_id = i+1;
goto rb_found;
}
}
LOG_E(PDCP, "%s:%d:%s: fatal, no RB found for ue %d\n",
__FILE__, __LINE__, __FUNCTION__, ue->rnti);
exit(1);
rb_found:
ctxt.module_id = 0;
ctxt.enb_flag = 1;
ctxt.instance = 0;
ctxt.frame = 0;
ctxt.subframe = 0;
ctxt.eNB_index = 0;
ctxt.configured = 1;
ctxt.brOption = 0;
ctxt.rnti = ue->rnti;
memblock = get_free_mem_block(size, __FUNCTION__);
memcpy(memblock->data, buf, size);
LOG_D(PDCP, "%s(): (srb %d) calling rlc_data_req size %d\n", __func__, rb_id, size);
//for (i = 0; i < size; i++) printf(" %2.2x", (unsigned char)memblock->data[i]);
//printf("\n");
enqueue_rlc_data_req(&ctxt, 0, MBMS_FLAG_NO, rb_id, sdu_id, 0, size, memblock, NULL, NULL);
}
boolean_t pdcp_data_ind(
const protocol_ctxt_t *const ctxt_pP,
const srb_flag_t srb_flagP,
const MBMS_flag_t MBMS_flagP,
const rb_id_t rb_id,
const sdu_size_t sdu_buffer_size,
mem_block_t *const sdu_buffer)
{
nr_pdcp_ue_t *ue;
nr_pdcp_entity_t *rb;
int rnti = ctxt_pP->rnti;
if (ctxt_pP->module_id != 0 ||
//ctxt_pP->enb_flag != 1 ||
ctxt_pP->instance != 0 ||
ctxt_pP->eNB_index != 0 ||
ctxt_pP->configured != 1 ||
ctxt_pP->brOption != 0) {
LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
if (ctxt_pP->enb_flag)
T(T_ENB_PDCP_UL, T_INT(ctxt_pP->module_id), T_INT(rnti),
T_INT(rb_id), T_INT(sdu_buffer_size));
nr_pdcp_manager_lock(nr_pdcp_ue_manager);
ue = nr_pdcp_manager_get_ue(nr_pdcp_ue_manager, rnti);
if (srb_flagP == 1) {
if (rb_id < 1 || rb_id > 2)
rb = NULL;
else
rb = ue->srb[rb_id - 1];
} else {
if (rb_id < 1 || rb_id > 5)
rb = NULL;
else
rb = ue->drb[rb_id - 1];
}
if (rb != NULL) {
rb->recv_pdu(rb, (char *)sdu_buffer->data, sdu_buffer_size);
} else {
LOG_E(PDCP, "%s:%d:%s: fatal: no RB found (rb_id %ld, srb_flag %d)\n",
__FILE__, __LINE__, __FUNCTION__, rb_id, srb_flagP);
exit(1);
}
nr_pdcp_manager_unlock(nr_pdcp_ue_manager);
free_mem_block(sdu_buffer, __FUNCTION__);
return 1;
}
void pdcp_run(const protocol_ctxt_t *const ctxt_pP)
{
MessageDef *msg_p;
int result;
protocol_ctxt_t ctxt;
while (1) {
itti_poll_msg(ctxt_pP->enb_flag ? TASK_PDCP_ENB : TASK_PDCP_UE, &msg_p);
if (msg_p == NULL)
break;
switch (ITTI_MSG_ID(msg_p)) {
case RRC_DCCH_DATA_REQ:
PROTOCOL_CTXT_SET_BY_MODULE_ID(
&ctxt,
RRC_DCCH_DATA_REQ(msg_p).module_id,
RRC_DCCH_DATA_REQ(msg_p).enb_flag,
RRC_DCCH_DATA_REQ(msg_p).rnti,
RRC_DCCH_DATA_REQ(msg_p).frame,
0,
RRC_DCCH_DATA_REQ(msg_p).eNB_index);
result = pdcp_data_req(&ctxt,
SRB_FLAG_YES,
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,
NULL, NULL);
if (result != TRUE)
LOG_E(PDCP, "PDCP data request failed!\n");
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;
default:
LOG_E(PDCP, "Received unexpected message %s\n", ITTI_MSG_NAME(msg_p));
break;
}
}
}
static void add_srb(int rnti, struct NR_SRB_ToAddMod *s)
{
TODO;
}
static void add_drb_am(int rnti, struct NR_DRB_ToAddMod *s)
{
nr_pdcp_entity_t *pdcp_drb;
nr_pdcp_ue_t *ue;
int drb_id = s->drb_Identity;
printf("\n\n################# rnti %d add drb %d\n\n\n", rnti, drb_id);
if (drb_id != 1) {
LOG_E(PDCP, "%s:%d:%s: fatal, bad drb id %d\n",
__FILE__, __LINE__, __FUNCTION__, drb_id);
exit(1);
}
nr_pdcp_manager_lock(nr_pdcp_ue_manager);
ue = nr_pdcp_manager_get_ue(nr_pdcp_ue_manager, rnti);
if (ue->drb[drb_id-1] != NULL) {
LOG_D(PDCP, "%s:%d:%s: warning DRB %d already exist for ue %d, do nothing\n",
__FILE__, __LINE__, __FUNCTION__, drb_id, rnti);
} else {
pdcp_drb = new_nr_pdcp_entity_drb_am(drb_id, deliver_sdu_drb, ue, deliver_pdu_drb, ue);
nr_pdcp_ue_add_drb_pdcp_entity(ue, drb_id, pdcp_drb);
LOG_D(PDCP, "%s:%d:%s: added drb %d to ue %d\n",
__FILE__, __LINE__, __FUNCTION__, drb_id, rnti);
}
nr_pdcp_manager_unlock(nr_pdcp_ue_manager);
}
static void add_drb(int rnti, struct NR_DRB_ToAddMod *s, NR_RLC_Config_t *rlc_Config)
{
switch (rlc_Config->present) {
case NR_RLC_Config_PR_am:
add_drb_am(rnti, s);
break;
case NR_RLC_Config_PR_um_Bi_Directional:
//add_drb_um(rnti, s);
/* hack */
add_drb_am(rnti, s);
break;
default:
LOG_E(PDCP, "%s:%d:%s: fatal: unhandled DRB type\n",
__FILE__, __LINE__, __FUNCTION__);
exit(1);
}
}
boolean_t nr_rrc_pdcp_config_asn1_req(
const protocol_ctxt_t *const ctxt_pP,
NR_SRB_ToAddModList_t *const srb2add_list,
NR_DRB_ToAddModList_t *const drb2add_list,
NR_DRB_ToReleaseList_t *const drb2release_list,
const uint8_t security_modeP,
uint8_t *const kRRCenc,
uint8_t *const kRRCint,
uint8_t *const kUPenc
#if (LTE_RRC_VERSION >= MAKE_VERSION(9, 0, 0))
,LTE_PMCH_InfoList_r9_t *pmch_InfoList_r9
#endif
,rb_id_t *const defaultDRB,
struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_bearer2add_list)
//struct NR_RLC_Config *rlc_Config)
{
int rnti = ctxt_pP->rnti;
int i;
if (//ctxt_pP->enb_flag != 1 ||
ctxt_pP->module_id != 0 ||
ctxt_pP->instance != 0 ||
ctxt_pP->eNB_index != 0 ||
//ctxt_pP->configured != 2 ||
//srb2add_list == NULL ||
//drb2add_list != NULL ||
drb2release_list != NULL ||
security_modeP != 255 ||
//kRRCenc != NULL ||
//kRRCint != NULL ||
//kUPenc != NULL ||
pmch_InfoList_r9 != NULL /*||
defaultDRB != NULL */) {
TODO;
}
if (srb2add_list != NULL) {
for (i = 0; i < srb2add_list->list.count; i++) {
add_srb(rnti, srb2add_list->list.array[i]);
}
}
if (drb2add_list != NULL) {
for (i = 0; i < drb2add_list->list.count; i++) {
LOG_I(PDCP, "Before calling add_drb \n");
add_drb(rnti, drb2add_list->list.array[i], rlc_bearer2add_list->list.array[i]->rlc_Config);
}
}
/* update security */
if (kRRCint != NULL) {
/* todo */
}
free(kRRCenc);
free(kRRCint);
free(kUPenc);
return 0;
}
/* Dummy function due to dependency from LTE libraries */
boolean_t rrc_pdcp_config_asn1_req(
const protocol_ctxt_t *const ctxt_pP,
LTE_SRB_ToAddModList_t *const srb2add_list,
LTE_DRB_ToAddModList_t *const drb2add_list,
LTE_DRB_ToReleaseList_t *const drb2release_list,
const uint8_t security_modeP,
uint8_t *const kRRCenc,
uint8_t *const kRRCint,
uint8_t *const kUPenc
#if (LTE_RRC_VERSION >= MAKE_VERSION(9, 0, 0))
,LTE_PMCH_InfoList_r9_t *pmch_InfoList_r9
#endif
,rb_id_t *const defaultDRB)
{
return 0;
}
void nr_DRB_preconfiguration(void)
{
NR_RadioBearerConfig_t *rbconfig = NULL;
struct NR_CellGroupConfig__rlc_BearerToAddModList *Rlc_Bearer_ToAdd_list = NULL;
protocol_ctxt_t ctxt;
//fill_default_rbconfig(rb_config, 5, 1);
rbconfig = calloc(1, sizeof(*rbconfig));
rbconfig->srb_ToAddModList = NULL;
rbconfig->srb3_ToRelease = NULL;
rbconfig->drb_ToAddModList = calloc(1,sizeof(*rbconfig->drb_ToAddModList));
NR_DRB_ToAddMod_t *drb_ToAddMod = calloc(1,sizeof(*drb_ToAddMod));
drb_ToAddMod->cnAssociation = calloc(1,sizeof(*drb_ToAddMod->cnAssociation));
drb_ToAddMod->cnAssociation->present = NR_DRB_ToAddMod__cnAssociation_PR_eps_BearerIdentity;
drb_ToAddMod->cnAssociation->choice.eps_BearerIdentity= 5;
drb_ToAddMod->drb_Identity = 1;
drb_ToAddMod->reestablishPDCP = NULL;
drb_ToAddMod->recoverPDCP = NULL;
drb_ToAddMod->pdcp_Config = calloc(1,sizeof(*drb_ToAddMod->pdcp_Config));
drb_ToAddMod->pdcp_Config->drb = calloc(1,sizeof(*drb_ToAddMod->pdcp_Config->drb));
drb_ToAddMod->pdcp_Config->drb->discardTimer = calloc(1,sizeof(*drb_ToAddMod->pdcp_Config->drb->discardTimer));
*drb_ToAddMod->pdcp_Config->drb->discardTimer=NR_PDCP_Config__drb__discardTimer_ms30;
drb_ToAddMod->pdcp_Config->drb->pdcp_SN_SizeUL = calloc(1,sizeof(*drb_ToAddMod->pdcp_Config->drb->pdcp_SN_SizeUL));
*drb_ToAddMod->pdcp_Config->drb->pdcp_SN_SizeUL = NR_PDCP_Config__drb__pdcp_SN_SizeUL_len12bits;
drb_ToAddMod->pdcp_Config->drb->pdcp_SN_SizeDL = calloc(1,sizeof(*drb_ToAddMod->pdcp_Config->drb->pdcp_SN_SizeDL));
*drb_ToAddMod->pdcp_Config->drb->pdcp_SN_SizeDL = NR_PDCP_Config__drb__pdcp_SN_SizeDL_len12bits;
drb_ToAddMod->pdcp_Config->drb->headerCompression.present = NR_PDCP_Config__drb__headerCompression_PR_notUsed;
drb_ToAddMod->pdcp_Config->drb->headerCompression.choice.notUsed = 0;
drb_ToAddMod->pdcp_Config->drb->integrityProtection=NULL;
drb_ToAddMod->pdcp_Config->drb->statusReportRequired=NULL;
drb_ToAddMod->pdcp_Config->drb->outOfOrderDelivery=NULL;
drb_ToAddMod->pdcp_Config->moreThanOneRLC = NULL;
drb_ToAddMod->pdcp_Config->t_Reordering = calloc(1,sizeof(*drb_ToAddMod->pdcp_Config->t_Reordering));
*drb_ToAddMod->pdcp_Config->t_Reordering = NR_PDCP_Config__t_Reordering_ms0;
drb_ToAddMod->pdcp_Config->ext1 = NULL;
ASN_SEQUENCE_ADD(&rbconfig->drb_ToAddModList->list,drb_ToAddMod);
rbconfig->drb_ToReleaseList = NULL;
rbconfig->securityConfig = calloc(1,sizeof(*rbconfig->securityConfig));
rbconfig->securityConfig->securityAlgorithmConfig = calloc(1,sizeof(*rbconfig->securityConfig->securityAlgorithmConfig));
rbconfig->securityConfig->securityAlgorithmConfig->cipheringAlgorithm = NR_CipheringAlgorithm_nea0;
rbconfig->securityConfig->securityAlgorithmConfig->integrityProtAlgorithm=NULL;
rbconfig->securityConfig->keyToUse = calloc(1,sizeof(*rbconfig->securityConfig->keyToUse));
*rbconfig->securityConfig->keyToUse = NR_SecurityConfig__keyToUse_master;
xer_fprint(stdout, &asn_DEF_NR_RadioBearerConfig, (const void*)rbconfig);
NR_RLC_BearerConfig_t *RLC_BearerConfig = calloc(1,sizeof(*RLC_BearerConfig));
RLC_BearerConfig->logicalChannelIdentity = 4;
RLC_BearerConfig->servedRadioBearer = calloc(1,sizeof(*RLC_BearerConfig->servedRadioBearer));
RLC_BearerConfig->servedRadioBearer->present = NR_RLC_BearerConfig__servedRadioBearer_PR_drb_Identity;
RLC_BearerConfig->servedRadioBearer->choice.drb_Identity=1;
RLC_BearerConfig->reestablishRLC=calloc(1,sizeof(*RLC_BearerConfig->reestablishRLC));
*RLC_BearerConfig->reestablishRLC=NR_RLC_BearerConfig__reestablishRLC_true;
RLC_BearerConfig->rlc_Config=calloc(1,sizeof(*RLC_BearerConfig->rlc_Config));
// RLC UM Bi-directional Bearer configuration
RLC_BearerConfig->rlc_Config->present = NR_RLC_Config_PR_um_Bi_Directional;
RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional = calloc(1,sizeof(*RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional));
RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength = calloc(1,sizeof(*RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength));
*RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength = NR_SN_FieldLengthUM_size12;
RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional->dl_UM_RLC.sn_FieldLength = calloc(1,sizeof(*RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional->dl_UM_RLC.sn_FieldLength));
*RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional->dl_UM_RLC.sn_FieldLength = NR_SN_FieldLengthUM_size12;
RLC_BearerConfig->rlc_Config->choice.um_Bi_Directional->dl_UM_RLC.t_Reassembly = NR_T_Reassembly_ms15;
// RLC AM Bearer configuration
/*RLC_BearerConfig->rlc_Config->present = NR_RLC_Config_PR_am;
RLC_BearerConfig->rlc_Config->choice.am = calloc(1,sizeof(*RLC_BearerConfig->rlc_Config->choice.am));
RLC_BearerConfig->rlc_Config->choice.am->ul_AM_RLC.sn_FieldLength = calloc(1,sizeof(*RLC_BearerConfig->rlc_Config->choice.am->ul_AM_RLC.sn_FieldLength));
*RLC_BearerConfig->rlc_Config->choice.am->ul_AM_RLC.sn_FieldLength = NR_SN_FieldLengthAM_size18;
RLC_BearerConfig->rlc_Config->choice.am->ul_AM_RLC.t_PollRetransmit = NR_T_PollRetransmit_ms45;
RLC_BearerConfig->rlc_Config->choice.am->ul_AM_RLC.pollPDU = NR_PollPDU_p64;
RLC_BearerConfig->rlc_Config->choice.am->ul_AM_RLC.pollByte = NR_PollByte_kB500;
RLC_BearerConfig->rlc_Config->choice.am->ul_AM_RLC.maxRetxThreshold = NR_UL_AM_RLC__maxRetxThreshold_t32;
RLC_BearerConfig->rlc_Config->choice.am->dl_AM_RLC.sn_FieldLength = calloc(1,sizeof(*RLC_BearerConfig->rlc_Config->choice.am->dl_AM_RLC.sn_FieldLength));
*RLC_BearerConfig->rlc_Config->choice.am->dl_AM_RLC.sn_FieldLength = NR_SN_FieldLengthAM_size18;
RLC_BearerConfig->rlc_Config->choice.am->dl_AM_RLC.t_Reassembly = NR_T_Reassembly_ms15;
RLC_BearerConfig->rlc_Config->choice.am->dl_AM_RLC.t_StatusProhibit = NR_T_StatusProhibit_ms15;*/
RLC_BearerConfig->mac_LogicalChannelConfig = calloc(1,sizeof(*RLC_BearerConfig->mac_LogicalChannelConfig));
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters = calloc(1,sizeof(*RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters));
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->priority = 1;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->prioritisedBitRate = NR_LogicalChannelConfig__ul_SpecificParameters__prioritisedBitRate_infinity;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->bucketSizeDuration = NR_LogicalChannelConfig__ul_SpecificParameters__bucketSizeDuration_ms50;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->allowedServingCells = NULL;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->allowedSCS_List = NULL;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->maxPUSCH_Duration = NULL;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->configuredGrantType1Allowed = NULL;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelGroup = calloc(1,sizeof(*RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelGroup));
*RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelGroup = 1;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->schedulingRequestID = NULL;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelSR_Mask = false;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelSR_DelayTimerApplied = false;
RLC_BearerConfig->mac_LogicalChannelConfig->ul_SpecificParameters->bitRateQueryProhibitTimer = NULL;
Rlc_Bearer_ToAdd_list = calloc(1,sizeof(*Rlc_Bearer_ToAdd_list));
ASN_SEQUENCE_ADD(&Rlc_Bearer_ToAdd_list->list, RLC_BearerConfig);
if (ENB_NAS_USE_TUN){
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, 0, ENB_FLAG_YES, 0x1234, 0, 0,0);
}
else{
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, 0, ENB_FLAG_NO, 0x1234, 0, 0,0);
}
nr_rrc_pdcp_config_asn1_req(
&ctxt,
(NR_SRB_ToAddModList_t *) NULL,
rbconfig->drb_ToAddModList ,
rbconfig->drb_ToReleaseList,
0xff,
NULL,
NULL,
NULL,
NULL,
NULL,
Rlc_Bearer_ToAdd_list);
nr_rrc_rlc_config_asn1_req (&ctxt,
(NR_SRB_ToAddModList_t *) NULL,
rbconfig->drb_ToAddModList,
rbconfig->drb_ToReleaseList,
(LTE_PMCH_InfoList_r9_t *) NULL,
Rlc_Bearer_ToAdd_list);
}
uint64_t get_pdcp_optmask(void)
{
return pdcp_optmask;
}
boolean_t pdcp_remove_UE(
const protocol_ctxt_t *const ctxt_pP)
{
int rnti = ctxt_pP->rnti;
nr_pdcp_manager_lock(nr_pdcp_ue_manager);
nr_pdcp_manager_remove_ue(nr_pdcp_ue_manager, rnti);
nr_pdcp_manager_unlock(nr_pdcp_ue_manager);
return 1;
}
void pdcp_config_set_security(const protocol_ctxt_t* const ctxt_pP, pdcp_t *pdcp_pP, rb_id_t rb_id,
uint16_t lc_idP, uint8_t security_modeP, uint8_t *kRRCenc_pP, uint8_t *kRRCint_pP, uint8_t *kUPenc_pP)
{
TODO;
}
static boolean_t pdcp_data_req_drb(
protocol_ctxt_t *ctxt_pP,
const rb_id_t rb_id,
const mui_t muiP,
const confirm_t confirmP,
const sdu_size_t sdu_buffer_size,
unsigned char *const sdu_buffer)
{
LOG_D(PDCP, "%s() called, size %d\n", __func__, sdu_buffer_size);
nr_pdcp_ue_t *ue;
nr_pdcp_entity_t *rb;
int rnti = ctxt_pP->rnti;
if (ctxt_pP->module_id != 0 ||
//ctxt_pP->enb_flag != 1 ||
ctxt_pP->instance != 0 ||
ctxt_pP->eNB_index != 0 /*||
ctxt_pP->configured != 1 ||
ctxt_pP->brOption != 0*/) {
LOG_E(PDCP, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
nr_pdcp_manager_lock(nr_pdcp_ue_manager);
ue = nr_pdcp_manager_get_ue(nr_pdcp_ue_manager, rnti);
if (rb_id < 1 || rb_id > 5)
rb = NULL;
else
rb = ue->drb[rb_id - 1];
if (rb == NULL) {
LOG_E(PDCP, "%s:%d:%s: no DRB found (rnti %d, rb_id %ld)\n",
__FILE__, __LINE__, __FUNCTION__, rnti, rb_id);
return 0;
}
rb->recv_sdu(rb, (char *)sdu_buffer, sdu_buffer_size, muiP);
nr_pdcp_manager_unlock(nr_pdcp_ue_manager);
return 1;
}
boolean_t pdcp_data_req(
protocol_ctxt_t *ctxt_pP,
const srb_flag_t srb_flagP,
const rb_id_t rb_id,
const mui_t muiP,
const confirm_t confirmP,
const sdu_size_t sdu_buffer_size,
unsigned char *const sdu_buffer,
const pdcp_transmission_mode_t mode
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
,const uint32_t *const sourceL2Id
,const uint32_t *const destinationL2Id
#endif
)
{
if (srb_flagP) { TODO; }
return pdcp_data_req_drb(ctxt_pP, rb_id, muiP, confirmP, sdu_buffer_size,
sdu_buffer);
}
void pdcp_set_pdcp_data_ind_func(pdcp_data_ind_func_t pdcp_data_ind)
{
/* nothing to do */
}
void pdcp_set_rlc_data_req_func(send_rlc_data_req_func_t send_rlc_data_req)
{
/* nothing to do */
}
//Dummy function needed due to LTE dependencies
void
pdcp_mbms_run ( const protocol_ctxt_t *const ctxt_pP){
/* nothing to do */
}
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