835 lines
36 KiB
C
835 lines
36 KiB
C
/*
|
|
* 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 pdcp_fifo.c
|
|
* \brief pdcp interface with linux IP interface, have a look at http://man7.org/linux/man-pages/man7/netlink.7.html for netlink
|
|
* \author Navid Nikaein and Lionel GAUTHIER
|
|
* \date 2009 - 2016
|
|
* \version 0.5
|
|
* \email navid.nikaein@eurecom.fr
|
|
* \warning This component can be runned only in user-space
|
|
* @ingroup pdcp
|
|
*/
|
|
|
|
#define PDCP_FIFO_C
|
|
|
|
|
|
|
|
extern int otg_enabled;
|
|
|
|
#include "pdcp.h"
|
|
#include "pdcp_primitives.h"
|
|
|
|
#include <pthread.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <netinet/ip.h>
|
|
#define rtf_put write
|
|
#define rtf_get read
|
|
|
|
#include "../MAC/mac_extern.h"
|
|
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
|
|
#include "NETWORK_DRIVER/LITE/constant.h"
|
|
//#include "SIMULATION/ETH_TRANSPORT/extern.h"
|
|
#include "UTIL/OCG/OCG.h"
|
|
#include "UTIL/OCG/OCG_extern.h"
|
|
#include "common/utils/LOG/log.h"
|
|
#include "UTIL/OTG/otg_tx.h"
|
|
#include "nfapi/oai_integration/vendor_ext.h"
|
|
#include "common/utils/LOG/vcd_signal_dumper.h"
|
|
#include "platform_constants.h"
|
|
#include "pdcp.h"
|
|
|
|
#include "assertions.h"
|
|
|
|
|
|
#include <sys/socket.h>
|
|
#include <linux/netlink.h>
|
|
#include "NETWORK_DRIVER/UE_IP/constant.h"
|
|
|
|
extern char nl_rx_buf[NL_MAX_PAYLOAD];
|
|
extern struct sockaddr_nl nas_src_addr, nas_dest_addr;
|
|
extern struct nlmsghdr *nas_nlh_tx;
|
|
extern struct nlmsghdr *nas_nlh_rx;
|
|
extern struct iovec nas_iov_tx;
|
|
extern struct iovec nas_iov_rx;
|
|
|
|
extern int nas_sock_fd[MAX_MOBILES_PER_ENB];
|
|
|
|
extern int nas_sock_mbms_fd;
|
|
|
|
extern struct msghdr nas_msg_tx;
|
|
extern struct msghdr nas_msg_rx;
|
|
|
|
|
|
|
|
# include "openair3/ocp-gtpu/gtp_itf.h"
|
|
|
|
extern int gtpv1u_new_data_req( uint8_t enb_module_idP, rnti_t ue_rntiP, uint8_t rab_idP, uint8_t *buffer_pP, uint32_t buf_lenP, uint32_t buf_offsetP);
|
|
uint16_t ue_id_g; // Global variable to identify the ID for each UE. It is updated in main() of lte-uesoftmodem.c
|
|
|
|
void debug_pdcp_pc5s_sdu(sidelink_pc5s_element *sl_pc5s_msg, char *title) {
|
|
LOG_I(PDCP,"%s: \nPC5S message, header traffic_type: %d)\n", title, sl_pc5s_msg->pc5s_header.traffic_type);
|
|
LOG_I(PDCP,"PC5S message, header rb_id: %ld)\n", sl_pc5s_msg->pc5s_header.rb_id);
|
|
LOG_I(PDCP,"PC5S message, header data_size: %d)\n", sl_pc5s_msg->pc5s_header.data_size);
|
|
LOG_I(PDCP,"PC5S message, header inst: %d)\n", sl_pc5s_msg->pc5s_header.inst);
|
|
LOG_I(PDCP,"PC5-S message, sourceL2Id: 0x%08x\n)\n", sl_pc5s_msg->pc5s_header.sourceL2Id);
|
|
LOG_I(PDCP,"PC5-S message, destinationL1Id: 0x%08x\n)\n", sl_pc5s_msg->pc5s_header.destinationL2Id);
|
|
}
|
|
//-----------------------------------------------------------------------------
|
|
int pdcp_fifo_flush_sdus(const protocol_ctxt_t *const ctxt_pP) {
|
|
notifiedFIFO_elt_t *sdu_p;
|
|
int pdcp_nb_sdu_sent = 0;
|
|
int ret=0;
|
|
while ((sdu_p = pollNotifiedFIFO(&pdcp_sdu_list)) != NULL ) {
|
|
pdcp_data_ind_header_t * pdcpHead=(pdcp_data_ind_header_t *)NotifiedFifoData(sdu_p);
|
|
|
|
/* Note: we ignore the instance ID in the context and use the one in the
|
|
* PDCP packet to pick the right socket below */
|
|
|
|
int rb_id = pdcpHead->rb_id;
|
|
void * pdcpData=(void*)(pdcpHead+1);
|
|
if (rb_id == 10) { //hardcoded for PC5-Signaling
|
|
if( LOG_DEBUGFLAG(DEBUG_PDCP) ) {
|
|
debug_pdcp_pc5s_sdu((sidelink_pc5s_element *)pdcpData,
|
|
"pdcp_fifo_flush_sdus sends a aPC5S message");
|
|
}
|
|
|
|
ret = sendto(pdcp_pc5_sockfd, pdcpData,
|
|
sizeof(sidelink_pc5s_element), 0, (struct sockaddr *)&prose_pdcp_addr,sizeof(prose_pdcp_addr) );
|
|
|
|
} else if (UE_NAS_USE_TUN) {
|
|
//ret = write(nas_sock_fd[pdcpHead->inst], &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),sizeToWrite );
|
|
if(rb_id == mbms_rab_id){
|
|
ret = write(nas_sock_mbms_fd, pdcpData, pdcpHead->data_size );
|
|
LOG_I(PDCP,"[PDCP_FIFOS] ret %d TRIED TO PUSH MBMS DATA TO rb_id %d handle %d sizeToWrite %d\n",
|
|
ret,rb_id,nas_sock_fd[pdcpHead->inst],pdcpHead->data_size);
|
|
}
|
|
else
|
|
{
|
|
if( LOG_DEBUGFLAG(DEBUG_PDCP) )
|
|
log_dump(PDCP, pdcpData, pdcpHead->data_size, LOG_DUMP_CHAR,"PDCP output to be sent to TUN interface: \n");
|
|
ret = write(nas_sock_fd[pdcpHead->inst], pdcpData,pdcpHead->data_size );
|
|
LOG_T(PDCP,"[UE PDCP_FIFOS] ret %d TRIED TO PUSH DATA TO rb_id %d handle %d sizeToWrite %d\n",
|
|
ret,rb_id,nas_sock_fd[pdcpHead->inst],pdcpHead->data_size);
|
|
}
|
|
} else if (ENB_NAS_USE_TUN) {
|
|
if( LOG_DEBUGFLAG(DEBUG_PDCP) )
|
|
log_dump(PDCP, pdcpData, pdcpHead->data_size, LOG_DUMP_CHAR,"PDCP output to be sent to TUN interface: \n");
|
|
ret = write(nas_sock_fd[0], pdcpData, pdcpHead->data_size);
|
|
LOG_T(PDCP,"[NB PDCP_FIFOS] ret %d TRIED TO PUSH DATA TO rb_id %d handle %d sizeToWrite %d\n",ret,rb_id,nas_sock_fd[0],pdcpHead->data_size);
|
|
} else if (PDCP_USE_NETLINK) {
|
|
int sizeToWrite= sizeof (pdcp_data_ind_header_t) + pdcpHead->data_size;
|
|
memcpy(NLMSG_DATA(nas_nlh_tx), (uint8_t *) pdcpHead, sizeToWrite);
|
|
nas_nlh_tx->nlmsg_len = sizeToWrite;
|
|
ret = sendmsg(nas_sock_fd[0],&nas_msg_tx,0);
|
|
} // PDCP_USE_NETLINK
|
|
|
|
AssertFatal(ret >= 0,"[PDCP_FIFOS] pdcp_fifo_flush_sdus (errno: %d %s), nas_sock_fd[0]: %d\n", errno, strerror(errno), nas_sock_fd[0]);
|
|
|
|
if( LOG_DEBUGFLAG(DEBUG_PDCP) )
|
|
log_dump(PDCP, pdcpData, min(pdcpHead->data_size,30) , LOG_DUMP_CHAR,
|
|
"Printing first bytes of PDCP SDU before removing it from the list: \n");
|
|
delNotifiedFIFO_elt (sdu_p);
|
|
pdcp_nb_sdu_sent ++;
|
|
}
|
|
|
|
return pdcp_nb_sdu_sent;
|
|
}
|
|
|
|
int pdcp_fifo_flush_mbms_sdus(const protocol_ctxt_t *const ctxt_pP) {
|
|
notifiedFIFO_elt_t *sdu_p;
|
|
int pdcp_nb_sdu_sent = 0;
|
|
//int ret=0;
|
|
|
|
while ((sdu_p = pollNotifiedFIFO(&pdcp_sdu_list)) != NULL ) {
|
|
pdcp_data_ind_header_t * pdcpHead=(pdcp_data_ind_header_t *)NotifiedFifoData(sdu_p);
|
|
AssertFatal(pdcpHead->inst==ctxt_pP->module_id, "To implement correctly multi module id\n");
|
|
//int rb_id = ((pdcp_data_ind_header_t *)(sdu_p->data))->rb_id;
|
|
//int sizeToWrite= sizeof (pdcp_data_ind_header_t) +
|
|
//((pdcp_data_ind_header_t *) sdu_p->data)->data_size;
|
|
|
|
//if (rb_id == 10) { //hardcoded for PC5-Signaling
|
|
// if( LOG_DEBUGFLAG(DEBUG_PDCP) ) {
|
|
// debug_pdcp_pc5s_sdu((sidelink_pc5s_element *)&(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),
|
|
// "pdcp_fifo_flush_sdus sends a aPC5S message");
|
|
// }
|
|
|
|
// ret = sendto(pdcp_pc5_sockfd, &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),
|
|
// sizeof(sidelink_pc5s_element), 0, (struct sockaddr *)&prose_pdcp_addr,sizeof(prose_pdcp_addr) );
|
|
//} else if (UE_NAS_USE_TUN) {
|
|
// ret = write(nas_sock_fd[ctxt_pP->module_id], &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),sizeToWrite );
|
|
// LOG_I(PDCP,"[PDCP_FIFOS] ret %d TRIED TO PUSH DATA TO rb_id %d handle %d sizeToWrite %d\n",ret,rb_id,nas_sock_fd[ctxt_pP->module_id],sizeToWrite);
|
|
|
|
//} else if (ENB_NAS_USE_TUN) {
|
|
// ret = write(nas_sock_fd[0], &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),sizeToWrite );
|
|
//} else if (PDCP_USE_NETLINK) {
|
|
// memcpy(NLMSG_DATA(nas_nlh_tx), (uint8_t *) sdu_p->data, sizeToWrite);
|
|
// nas_nlh_tx->nlmsg_len = sizeToWrite;
|
|
// ret = sendmsg(nas_sock_fd[0],&nas_msg_tx,0);
|
|
//} // PDCP_USE_NETLINK
|
|
|
|
//AssertFatal(ret >= 0,"[PDCP_FIFOS] pdcp_fifo_flush_sdus (errno: %d %s)\n", errno, strerror(errno));
|
|
|
|
//AssertFatal(ret >= 0,"[PDCP_FIFOS] pdcp_fifo_flush_sdus (errno: %d %s)\n", errno, strerror(errno));
|
|
delNotifiedFIFO_elt (sdu_p);
|
|
pdcp_nb_sdu_sent ++;
|
|
}
|
|
|
|
return pdcp_nb_sdu_sent;
|
|
}
|
|
|
|
|
|
int pdcp_fifo_read_input_sdus_fromtun (const protocol_ctxt_t *const ctxt_pP) {
|
|
protocol_ctxt_t ctxt = *ctxt_pP;
|
|
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
|
|
hashtable_rc_t h_rc;
|
|
pdcp_t *pdcp_p = NULL;
|
|
int len;
|
|
rb_id_t rab_id = DEFAULT_RAB_ID;
|
|
int sockd;
|
|
|
|
if (UE_NAS_USE_TUN) {
|
|
if (ue_id_g == 0) {
|
|
sockd = nas_sock_fd[ctxt_pP->module_id];
|
|
}
|
|
else {
|
|
sockd = nas_sock_fd[ue_id_g];
|
|
}
|
|
}
|
|
else {
|
|
sockd = nas_sock_fd[0];
|
|
}
|
|
|
|
for (;;) {
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ, 1 );
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ_BUFFER, 1 );
|
|
len = read(sockd, &nl_rx_buf, NL_MAX_PAYLOAD);
|
|
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ_BUFFER, 0 );
|
|
if (len == -1) {
|
|
if (errno == EAGAIN) {
|
|
LOG_D(PDCP, "Error reading NAS socket: %s\n", strerror(errno));
|
|
}
|
|
else {
|
|
LOG_E(PDCP, "Error reading NAS socket: %s\n", strerror(errno));
|
|
}
|
|
break;
|
|
}
|
|
/* Check for message truncation. Strictly speaking if the packet is exactly sizeof(nl_rx_buf) bytes
|
|
that would not be an error. But we cannot distinguish that from a packet > sizeof(nl_rx_buf) */
|
|
if (len == sizeof(nl_rx_buf))
|
|
{
|
|
LOG_E(PDCP, "%s(%d). Message truncated %d\n", __FUNCTION__, __LINE__, len);
|
|
break;
|
|
}
|
|
if (len == 0) {
|
|
LOG_E(PDCP, "EOF Reading NAS socket\n");
|
|
break;
|
|
}
|
|
|
|
if (UE_NAS_USE_TUN) {
|
|
key = PDCP_COLL_KEY_DEFAULT_DRB_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
|
|
h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
} else { // => ENB_NAS_USE_TUN
|
|
/* Get the IP from a packet */
|
|
struct ip *ip_pack = (struct ip *) nl_rx_buf;
|
|
/* Use last octet of destination IP to get index of UE */
|
|
int ue_indx = ((ip_pack->ip_dst.s_addr >> 24) - 2) % MAX_MOBILES_PER_ENB;
|
|
ctxt.rnti=pdcp_eNB_UE_instance_to_rnti[ue_indx];
|
|
ctxt.enb_flag=ENB_FLAG_YES;
|
|
ctxt.module_id=0;
|
|
key = PDCP_COLL_KEY_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
|
|
h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
}
|
|
|
|
LOG_D(PDCP, "PDCP_COLL_KEY_DEFAULT_DRB_VALUE(module_id=%d, rnti=%x, enb_flag=%d)\n",
|
|
ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
|
|
|
|
if (h_rc == HASH_TABLE_OK) {
|
|
LOG_D(PDCP, "[FRAME %5u][UE][NETLINK][IP->PDCP] INST %ld: Received socket with length %d on Rab %ld \n",
|
|
ctxt.frame, ctxt.instance, len, rab_id);
|
|
LOG_D(PDCP, "[FRAME %5u][UE][IP][INSTANCE %ld][RB %ld][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %04x][RB %ld]\n",
|
|
ctxt.frame, ctxt.instance, rab_id, len, ctxt.module_id,
|
|
ctxt.rnti, rab_id);
|
|
|
|
#if defined ENABLE_PDCP_PAYLOAD_DEBUG
|
|
LOG_I(PHY, "TUN interface output received from PDCP: \n");
|
|
for (int i = 0; i < 128; i++) {
|
|
printf("%02x ",(unsigned char)nl_rx_buf[i]);
|
|
}
|
|
printf("\n");
|
|
#endif
|
|
|
|
pdcp_data_req(&ctxt, SRB_FLAG_NO, rab_id, RLC_MUI_UNDEFINED,
|
|
RLC_SDU_CONFIRM_NO, len, (unsigned char *)nl_rx_buf,
|
|
PDCP_TRANSMISSION_MODE_DATA
|
|
, NULL, NULL
|
|
);
|
|
} else {
|
|
LOG_D(PDCP,
|
|
"[FRAME %5u][UE][IP][INSTANCE %ld][RB %ld][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %04x][RB %ld] TUN NON INSTANCIATED INSTANCE key 0x%"PRIx64", DROPPED\n",
|
|
ctxt.frame, ctxt.instance, rab_id, len, ctxt.module_id,
|
|
ctxt.rnti, rab_id, key);
|
|
}
|
|
}
|
|
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ, 0 );
|
|
return len;
|
|
}
|
|
|
|
int pdcp_fifo_read_input_mbms_sdus_fromtun (const protocol_ctxt_t *const ctxt_pP) {
|
|
protocol_ctxt_t ctxt = *ctxt_pP;
|
|
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
|
|
hashtable_rc_t h_rc = HASH_TABLE_OK;
|
|
//pdcp_t *pdcp_p = NULL;
|
|
int len;
|
|
rb_id_t rab_id = mbms_rab_id;//DEFAULT_RAB_ID;
|
|
if(mbms_rab_id > 9 || mbms_rab_id < 4)
|
|
h_rc = 2;
|
|
|
|
if(UE_NAS_USE_TUN)
|
|
return 0;
|
|
|
|
do {
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_MBMS_FIFO_READ, 1 );
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_MBMS_FIFO_READ_BUFFER, 1 );
|
|
len = read(nas_sock_mbms_fd, &nl_rx_buf, NL_MAX_PAYLOAD);
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_MBMS_FIFO_READ_BUFFER, 0 );
|
|
|
|
if (len<=0) continue;
|
|
|
|
if (UE_NAS_USE_TUN) {
|
|
//key = PDCP_COLL_KEY_DEFAULT_DRB_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
|
|
//h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
} else { // => ENB_NAS_USE_TUN
|
|
//ctxt.rnti=pdcp_eNB_UE_instance_to_rnti[0];
|
|
// ctxt.enb_flag=ENB_FLAG_YES;
|
|
// ctxt.module_id=0;
|
|
// key = PDCP_COLL_KEY_VALUE(ctxt.module_id, /*ctxt.rnti*/0, ctxt.enb_flag, /*mbms_rab_id*/8, SRB_FLAG_YES);
|
|
// h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
// LOG_W(PDCP,"h_rc %d %d\n",h_rc,rab_id);
|
|
}
|
|
|
|
LOG_D(PDCP, "PDCP_COLL_KEY_DEFAULT_DRB_VALUE(module_id=%d, rnti=%x, enb_flag=%d)\n",
|
|
ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
|
|
|
|
if (h_rc == HASH_TABLE_OK) {
|
|
LOG_D(PDCP, "[FRAME %5u][UE][NETLINK][IP->PDCP] INST %ld: Received socket with length %d on Rab %ld \n",
|
|
ctxt.frame, ctxt.instance, len, rab_id);
|
|
LOG_D(PDCP, "[FRAME %5u][UE][IP][INSTANCE %ld][RB %ld][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %04x][RB %ld]\n",
|
|
ctxt.frame, ctxt.instance, rab_id, len, ctxt.module_id,
|
|
ctxt.rnti, rab_id);
|
|
pdcp_data_req(
|
|
&ctxt,
|
|
SRB_FLAG_NO,
|
|
//DEFAULT_RAB_ID,
|
|
rab_id,
|
|
RLC_MUI_UNDEFINED,
|
|
RLC_SDU_CONFIRM_NO,
|
|
len,
|
|
(unsigned char *)nl_rx_buf,
|
|
PDCP_TRANSMISSION_MODE_TRANSPARENT
|
|
, NULL, NULL
|
|
);
|
|
|
|
//pdcp_data_req(&ctxt, SRB_FLAG_NO, rab_id, RLC_MUI_UNDEFINED,
|
|
// RLC_SDU_CONFIRM_NO, len, (unsigned char *)nl_rx_buf,
|
|
// PDCP_TRANSMISSION_MODE_DATA
|
|
// , NULL, NULL
|
|
// );
|
|
} else {
|
|
LOG_D(PDCP,
|
|
"[FRAME %5u][UE][IP][INSTANCE %ld][RB %ld][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %04x][RB %ld] NON INSTANCIATED INSTANCE key 0x%"PRIx64", DROPPED\n",
|
|
ctxt.frame, ctxt.instance, rab_id, len, ctxt.module_id,
|
|
ctxt.rnti, rab_id, key);
|
|
//if (!UE_NAS_USE_TUN) {
|
|
// pdcp_data_req(
|
|
// &ctxt,
|
|
// SRB_FLAG_NO,
|
|
// DEFAULT_RAB_ID,
|
|
// RLC_MUI_UNDEFINED,
|
|
// RLC_SDU_CONFIRM_NO,
|
|
// len,
|
|
// (unsigned char *)nl_rx_buf,
|
|
// PDCP_TRANSMISSION_MODE_TRANSPARENT
|
|
// , NULL, NULL
|
|
// );
|
|
//}
|
|
}
|
|
} while (len > 0);
|
|
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_MBMS_FIFO_READ, 0 );
|
|
return len;
|
|
}
|
|
|
|
int pdcp_fifo_read_input_sdus_fromnetlinksock (const protocol_ctxt_t *const ctxt_pP) {
|
|
int len = 1;
|
|
int rlc_data_req_flag = 3;
|
|
|
|
while ((len > 0) && (rlc_data_req_flag !=0)) {
|
|
pdcp_data_req_header_t pdcp_read_header_g;
|
|
protocol_ctxt_t ctxt_cpy = *ctxt_pP;
|
|
protocol_ctxt_t ctxt;
|
|
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
|
|
hashtable_rc_t h_rc;
|
|
pdcp_t *pdcp_p = NULL;
|
|
static unsigned char pdcp_read_state_g =0;
|
|
rb_id_t rab_id = 0;
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ, 1 );
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ_BUFFER, 1 );
|
|
len = recvmsg(nas_sock_fd[0], &nas_msg_rx, 0);
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ_BUFFER, 0 );
|
|
|
|
if (len > 0) {
|
|
for (nas_nlh_rx = (struct nlmsghdr *) nl_rx_buf;
|
|
NLMSG_OK (nas_nlh_rx, len);
|
|
nas_nlh_rx = NLMSG_NEXT (nas_nlh_rx, len)) {
|
|
if (nas_nlh_rx->nlmsg_type == NLMSG_DONE) {
|
|
LOG_D(PDCP, "[PDCP][NETLINK] RX NLMSG_DONE\n");
|
|
//return;
|
|
}
|
|
|
|
if (nas_nlh_rx->nlmsg_type == NLMSG_ERROR) {
|
|
LOG_D(PDCP, "[PDCP][NETLINK] RX NLMSG_ERROR\n");
|
|
}
|
|
|
|
if (pdcp_read_state_g == 0) {
|
|
if (nas_nlh_rx->nlmsg_len == sizeof (pdcp_data_req_header_t) + sizeof(struct nlmsghdr)) {
|
|
pdcp_read_state_g = 1; //get
|
|
memcpy((void *)&pdcp_read_header_g, (void *)NLMSG_DATA(nas_nlh_rx), sizeof(pdcp_data_req_header_t));
|
|
LOG_D(PDCP, "[PDCP][NETLINK] RX pdcp_data_req_header_t inst %u, rb_id %ld data_size %d, source L2Id 0x%08x, destination L2Id 0x%08x\n",
|
|
pdcp_read_header_g.inst, pdcp_read_header_g.rb_id, pdcp_read_header_g.data_size,pdcp_read_header_g.sourceL2Id, pdcp_read_header_g.destinationL2Id );
|
|
} else {
|
|
LOG_E(PDCP, "[PDCP][NETLINK] WRONG size %d should be sizeof (pdcp_data_req_header_t) + sizeof(struct nlmsghdr)\n",
|
|
nas_nlh_rx->nlmsg_len);
|
|
}
|
|
} else {
|
|
pdcp_read_state_g = 0;
|
|
// print_active_requests()
|
|
LOG_D(PDCP, "[PDCP][NETLINK] Something in socket, length %zu\n",
|
|
nas_nlh_rx->nlmsg_len - sizeof(struct nlmsghdr));
|
|
/* TODO: do we have to reset to 0 or not? not for a scenario with 1 UE at least */
|
|
// pdcp_read_header_g.inst = 0;
|
|
//#warning "TO DO CORRCT VALUES FOR ue mod id, enb mod id"
|
|
ctxt.frame = ctxt_cpy.frame;
|
|
ctxt.enb_flag = ctxt_cpy.enb_flag;
|
|
LOG_D(PDCP, "[PDCP][NETLINK] pdcp_read_header_g.rb_id = %ld, source L2Id = 0x%08x, destination L2Id = 0x%08x \n", pdcp_read_header_g.rb_id, pdcp_read_header_g.sourceL2Id,
|
|
pdcp_read_header_g.destinationL2Id);
|
|
|
|
if (ctxt.enb_flag) {
|
|
ctxt.module_id = 0;
|
|
rab_id = pdcp_read_header_g.rb_id % LTE_maxDRB;
|
|
ctxt.rnti = pdcp_eNB_UE_instance_to_rnti[pdcp_read_header_g.rb_id / LTE_maxDRB];
|
|
|
|
if (rab_id != 0) {
|
|
rab_id = rab_id % LTE_maxDRB;
|
|
key = PDCP_COLL_KEY_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
|
|
h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
|
|
if (h_rc == HASH_TABLE_OK) {
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][NETLINK][IP->PDCP] INST %d: Received socket with length %d (nlmsg_len = %zu) on Rab %ld for rnti: %d \n",
|
|
ctxt.frame,
|
|
pdcp_read_header_g.inst,
|
|
len,
|
|
nas_nlh_rx->nlmsg_len-sizeof(struct nlmsghdr),
|
|
pdcp_read_header_g.rb_id,
|
|
ctxt.rnti);
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u]UE %u][RB %ld]\n",
|
|
ctxt_cpy.frame,
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
pdcp_read_header_g.data_size,
|
|
ctxt.module_id,
|
|
ctxt.rnti,
|
|
rab_id);
|
|
pdcp_data_req(&ctxt,
|
|
SRB_FLAG_NO,
|
|
rab_id,
|
|
RLC_MUI_UNDEFINED,
|
|
RLC_SDU_CONFIRM_NO,
|
|
pdcp_read_header_g.data_size,
|
|
(unsigned char *)NLMSG_DATA(nas_nlh_rx),
|
|
PDCP_TRANSMISSION_MODE_DATA
|
|
,NULL, NULL
|
|
);
|
|
} else {
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %ld] NON INSTANCIATED INSTANCE, DROPPED\n",
|
|
ctxt.frame,
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
pdcp_read_header_g.data_size,
|
|
ctxt.module_id,
|
|
ctxt.rnti,
|
|
rab_id);
|
|
}
|
|
} else { // rb_id =0, thus interpreated as broadcast and transported as multiple unicast
|
|
// is a broadcast packet, we have to send this packet on all default RABS of all connected UEs
|
|
//#warning CODE TO BE REVIEWED, ONLY WORK FOR SIMPLE TOPOLOGY CASES
|
|
// never finished code, dropped
|
|
}
|
|
} else { // ctxt.enb_flag => UE
|
|
if (NFAPI_MODE == NFAPI_UE_STUB_PNF || NFAPI_MODE == NFAPI_MODE_STANDALONE_PNF) {
|
|
#ifdef UESIM_EXPANSION
|
|
ctxt.module_id = inst_pdcp_list[pdcp_read_header_g.inst];
|
|
#else
|
|
ctxt.module_id = pdcp_read_header_g.inst;
|
|
#endif
|
|
} else {
|
|
ctxt.module_id = 0;
|
|
}
|
|
|
|
rab_id = pdcp_read_header_g.rb_id % LTE_maxDRB;
|
|
ctxt.rnti = pdcp_UE_UE_module_id_to_rnti[ctxt.module_id];
|
|
|
|
if (rab_id != 0) {
|
|
if (rab_id == UE_IP_DEFAULT_RAB_ID) {
|
|
LOG_D(PDCP, "PDCP_COLL_KEY_DEFAULT_DRB_VALUE(module_id=%d, rnti=%x, enb_flag=%d)\n",
|
|
ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
|
|
key = PDCP_COLL_KEY_DEFAULT_DRB_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
|
|
h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
LOG_D(PDCP,"request key %x : (%d,%x,%d,%ld)\n",
|
|
(uint8_t)key,ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id);
|
|
} else {
|
|
rab_id = rab_id % LTE_maxDRB;
|
|
LOG_D(PDCP, "PDCP_COLL_KEY_VALUE(module_id=%d, rnti=%x, enb_flag=%d, rab_id=%ld, SRB_FLAG=%d)\n",
|
|
ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
|
|
key = PDCP_COLL_KEY_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
|
|
h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
LOG_D(PDCP,"request key %x : (%d,%x,%d,%ld)\n",
|
|
(uint8_t)key,ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id);
|
|
}
|
|
|
|
if (h_rc == HASH_TABLE_OK) {
|
|
rab_id = pdcp_p->rb_id;
|
|
LOG_D(PDCP, "[FRAME %5u][UE][NETLINK][IP->PDCP] INST %d: Received socket with length %d (nlmsg_len = %zu) on Rab %ld \n",
|
|
ctxt.frame,
|
|
pdcp_read_header_g.inst,
|
|
len,
|
|
nas_nlh_rx->nlmsg_len-sizeof(struct nlmsghdr),
|
|
pdcp_read_header_g.rb_id);
|
|
LOG_D(PDCP, "[FRAME %5u][UE][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB %ld]\n",
|
|
ctxt.frame,
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
pdcp_read_header_g.data_size,
|
|
ctxt.module_id,
|
|
ctxt.rnti,
|
|
rab_id);
|
|
pdcp_data_req(
|
|
&ctxt,
|
|
SRB_FLAG_NO,
|
|
rab_id,
|
|
RLC_MUI_UNDEFINED,
|
|
RLC_SDU_CONFIRM_NO,
|
|
pdcp_read_header_g.data_size,
|
|
(unsigned char *)NLMSG_DATA(nas_nlh_rx),
|
|
PDCP_TRANSMISSION_MODE_DATA,
|
|
(NFAPI_MODE == NFAPI_UE_STUB_PNF || NFAPI_MODE == NFAPI_MODE_STANDALONE_PNF) ? NULL : &pdcp_read_header_g.sourceL2Id,
|
|
(NFAPI_MODE == NFAPI_UE_STUB_PNF || NFAPI_MODE == NFAPI_MODE_STANDALONE_PNF) ? NULL : &pdcp_read_header_g.destinationL2Id
|
|
);
|
|
} else { /* else of h_rc == HASH_TABLE_OK */
|
|
LOG_D(PDCP,
|
|
"[FRAME %5u][UE][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %ld] NON INSTANCIATED INSTANCE key 0x%"PRIx64", DROPPED\n",
|
|
ctxt.frame,
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
pdcp_read_header_g.data_size,
|
|
ctxt.module_id,
|
|
ctxt.rnti,
|
|
rab_id,
|
|
key);
|
|
} /* h_rc != HASH_TABLE_OK */
|
|
} else {/* else of rab_id != 0 */
|
|
LOG_D(PDCP, "Forcing send on DEFAULT_RAB_ID\n");
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB DEFAULT_RAB_ID %u]\n",
|
|
ctxt.frame,
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
pdcp_read_header_g.data_size,
|
|
ctxt.module_id,
|
|
ctxt.rnti,
|
|
DEFAULT_RAB_ID);
|
|
pdcp_data_req (
|
|
&ctxt,
|
|
SRB_FLAG_NO,
|
|
DEFAULT_RAB_ID,
|
|
RLC_MUI_UNDEFINED,
|
|
RLC_SDU_CONFIRM_NO,
|
|
pdcp_read_header_g.data_size,
|
|
(unsigned char *)NLMSG_DATA(nas_nlh_rx),
|
|
PDCP_TRANSMISSION_MODE_DATA,
|
|
(NFAPI_MODE == NFAPI_UE_STUB_PNF|| NFAPI_MODE == NFAPI_MODE_STANDALONE_PNF) ? NULL : &pdcp_read_header_g.sourceL2Id,
|
|
(NFAPI_MODE == NFAPI_UE_STUB_PNF|| NFAPI_MODE == NFAPI_MODE_STANDALONE_PNF) ? NULL : &pdcp_read_header_g.destinationL2Id
|
|
);
|
|
} /* rab_id == 0 */
|
|
} /*pdcp_read_state_g != 0 */
|
|
} /* UE */
|
|
} /* for loop on netlink buffers */
|
|
|
|
return len;
|
|
} /* len > 0 */
|
|
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ, 0 );
|
|
} /* while loop on reading from netlink socket */
|
|
|
|
return 0;
|
|
} /* pdcp_fifo_read_input_sdus_fromnetlinksock */
|
|
|
|
void pdcp_fifo_read_input_sdus_frompc5s (const protocol_ctxt_t *const ctxt_pP) {
|
|
protocol_ctxt_t ctxt_cpy = *ctxt_pP;
|
|
protocol_ctxt_t ctxt;
|
|
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
|
|
hashtable_rc_t h_rc;
|
|
struct pdcp_netlink_element_s *data_p = NULL;
|
|
/* avoid gcc warnings */
|
|
(void)data_p;
|
|
pdcp_t *pdcp_p = NULL;
|
|
int bytes_received;
|
|
sidelink_pc5s_element *sl_pc5s_msg_send = NULL;
|
|
pc5s_header_t *pc5s_header = NULL;
|
|
rb_id_t rab_id = 0;
|
|
//TTN for D2D (PC5S)
|
|
// receive a message from ProSe App
|
|
char receive_buf[MAX_MESSAGE_SIZE];
|
|
memset(receive_buf, 0, sizeof(receive_buf));
|
|
socklen_t prose_addr_len = sizeof(prose_pdcp_addr);
|
|
bytes_received = recvfrom(pdcp_pc5_sockfd, receive_buf, sizeof(receive_buf), MSG_TRUNC,
|
|
(struct sockaddr *) &prose_pdcp_addr, &prose_addr_len);
|
|
if (bytes_received == -1) {
|
|
LOG_E(PDCP, "%s(%d). recvfrom failed. %s\n", __FUNCTION__, __LINE__, strerror(errno));
|
|
return;
|
|
}
|
|
if (bytes_received == 0) {
|
|
LOG_E(PDCP, "%s(%d). EOF pdcp_pc5_sockfd.\n", __FUNCTION__, __LINE__);
|
|
}
|
|
if (bytes_received > sizeof(receive_buf)) {
|
|
LOG_E(PDCP, "%s(%d). Message truncated. %d\n", __FUNCTION__, __LINE__, bytes_received);
|
|
return;
|
|
}
|
|
if (bytes_received > 0) {
|
|
pc5s_header = calloc(1, sizeof(pc5s_header_t));
|
|
memcpy((void *)pc5s_header, (void *)receive_buf, sizeof(pc5s_header_t));
|
|
|
|
char send_buf[MAX_MESSAGE_SIZE];
|
|
switch(pc5s_header->traffic_type) {
|
|
case TRAFFIC_PC5S_SESSION_INIT :
|
|
//send reply to ProSe app
|
|
LOG_D(PDCP,"Received a request to open PDCP socket and establish a new PDCP session ... send response to ProSe App \n");
|
|
memset(send_buf, 0, sizeof(send_buf));
|
|
sl_pc5s_msg_send = calloc(1, sizeof(sidelink_pc5s_element));
|
|
sl_pc5s_msg_send->pc5s_header.traffic_type = TRAFFIC_PC5S_SESSION_INIT;
|
|
sl_pc5s_msg_send->pc5sPrimitive.status = 1;
|
|
memcpy(send_buf, sl_pc5s_msg_send, sizeof(sidelink_pc5s_element));
|
|
int prose_addr_len = sizeof(prose_pdcp_addr);
|
|
int bytes_sent = sendto(pdcp_pc5_sockfd, send_buf, sizeof(sidelink_pc5s_element), 0,
|
|
(struct sockaddr *) &prose_pdcp_addr, prose_addr_len);
|
|
free (sl_pc5s_msg_send);
|
|
|
|
if (bytes_sent < 0) {
|
|
LOG_E(PDCP, "ERROR: Failed to send to ProSe App\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
break;
|
|
|
|
case TRAFFIC_PC5S_SIGNALLING: /* PC5-S message -> send to other UE */
|
|
if( LOG_DEBUGFLAG(DEBUG_PDCP) ) {
|
|
debug_pdcp_pc5s_sdu((sidelink_pc5s_element *)send_buf,
|
|
"pdcp_fifo_read_input_sdus received aPC5S message");
|
|
}
|
|
|
|
/* TODO: do we have to reset to 0 or not? not for a scenario with 1 UE at least */
|
|
// pc5s_header.inst = 0;
|
|
//#warning "TO DO CORRCT VALUES FOR ue mod id, enb mod id"
|
|
ctxt.frame = ctxt_cpy.frame;
|
|
ctxt.enb_flag = ctxt_cpy.enb_flag;
|
|
LOG_I(PDCP, "[PDCP] pc5s_header->rb_id = %ld\n", pc5s_header->rb_id);
|
|
|
|
if (ctxt_cpy.enb_flag) {
|
|
ctxt.module_id = 0;
|
|
rab_id = pc5s_header->rb_id % LTE_maxDRB;
|
|
ctxt.rnti = pdcp_eNB_UE_instance_to_rnti[pdcp_eNB_UE_instance_to_rnti_index];
|
|
} else {
|
|
ctxt.module_id = 0;
|
|
rab_id = pc5s_header->rb_id % LTE_maxDRB;
|
|
ctxt.rnti = pdcp_UE_UE_module_id_to_rnti[ctxt.module_id];
|
|
}
|
|
|
|
//UE
|
|
if (!ctxt.enb_flag) {
|
|
if (rab_id != 0) {
|
|
if (rab_id == UE_IP_DEFAULT_RAB_ID) {
|
|
LOG_D(PDCP, "PDCP_COLL_KEY_DEFAULT_DRB_VALUE(module_id=%d, rnti=%x, enb_flag=%d)\n",
|
|
ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
|
|
key = PDCP_COLL_KEY_DEFAULT_DRB_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
|
|
h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
LOG_D(PDCP,"request key %x : (%d,%x,%d,%ld)\n",
|
|
(uint8_t)key,ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id);
|
|
} else {
|
|
rab_id = rab_id % LTE_maxDRB;
|
|
LOG_I(PDCP, "PDCP_COLL_KEY_VALUE(module_id=%d, rnti=%x, enb_flag=%d, rab_id=%ld, SRB_FLAG=%d)\n",
|
|
ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
|
|
key = PDCP_COLL_KEY_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
|
|
h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
|
|
LOG_I(PDCP,"request key %x : (%d,%x,%d,%ld)\n",
|
|
(uint8_t)key,ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id);
|
|
}
|
|
|
|
if (h_rc == HASH_TABLE_OK) {
|
|
rab_id = pdcp_p->rb_id;
|
|
LOG_I(PDCP, "[FRAME %5u][UE][NETLINK][IP->PDCP] INST %d: Received socket with length %d on Rab %ld \n",
|
|
ctxt.frame,
|
|
pc5s_header->inst,
|
|
bytes_received,
|
|
pc5s_header->rb_id);
|
|
LOG_I(PDCP, "[FRAME %5u][UE][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB %ld]\n",
|
|
ctxt.frame,
|
|
pc5s_header->inst,
|
|
pc5s_header->rb_id,
|
|
pc5s_header->data_size,
|
|
ctxt.module_id,
|
|
ctxt.rnti,
|
|
rab_id);
|
|
/* pointers to pc5s_header fields possibly not aligned because pc5s_header points to a packed structure
|
|
* Using these possibly unaligned pointers in a function call may trigger alignment errors at run time and
|
|
* gcc, from v9, now warns about it. fix these warnings by using local variables
|
|
*/
|
|
uint32_t sourceL2Id = pc5s_header->sourceL2Id;
|
|
uint32_t destinationL2Id = pc5s_header->destinationL2Id;
|
|
pdcp_data_req(
|
|
&ctxt,
|
|
SRB_FLAG_NO,
|
|
rab_id,
|
|
RLC_MUI_UNDEFINED,
|
|
RLC_SDU_CONFIRM_NO,
|
|
pc5s_header->data_size,
|
|
(unsigned char *)receive_buf,
|
|
PDCP_TRANSMISSION_MODE_DATA,
|
|
&sourceL2Id,
|
|
&destinationL2Id
|
|
);
|
|
pc5s_header->sourceL2Id = sourceL2Id;
|
|
pc5s_header->destinationL2Id=destinationL2Id;
|
|
} else { /* else of h_rc == HASH_TABLE_OK */
|
|
LOG_D(PDCP,
|
|
"[FRAME %5u][UE][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %ld] NON INSTANCIATED INSTANCE key 0x%"PRIx64", DROPPED\n",
|
|
ctxt.frame,
|
|
pc5s_header->inst,
|
|
pc5s_header->rb_id,
|
|
pc5s_header->data_size,
|
|
ctxt.module_id,
|
|
ctxt.rnti,
|
|
rab_id,
|
|
key);
|
|
}
|
|
} else { /* else of if (rab_id == 0) */
|
|
LOG_D(PDCP, "Forcing send on DEFAULT_RAB_ID\n");
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %ld][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB DEFAULT_RAB_ID %u]\n",
|
|
ctxt.frame,
|
|
pc5s_header->inst,
|
|
pc5s_header->rb_id,
|
|
pc5s_header->data_size,
|
|
ctxt.module_id,
|
|
ctxt.rnti,
|
|
DEFAULT_RAB_ID);
|
|
/* pointers to pc5s_header fields possibly not aligned because pc5s_header points to a packed structure
|
|
* Using these possibly unaligned pointers in a function call may trigger alignment errors at run time and
|
|
* gcc, from v9, now warns about it. fix these warnings by using local variables
|
|
*/
|
|
uint32_t sourceL2Id = pc5s_header->sourceL2Id;
|
|
uint32_t destinationL2Id = pc5s_header->destinationL2Id;
|
|
pdcp_data_req (
|
|
&ctxt,
|
|
SRB_FLAG_NO,
|
|
DEFAULT_RAB_ID,
|
|
RLC_MUI_UNDEFINED,
|
|
RLC_SDU_CONFIRM_NO,
|
|
pc5s_header->data_size,
|
|
(unsigned char *)receive_buf,
|
|
PDCP_TRANSMISSION_MODE_DATA,
|
|
&sourceL2Id,
|
|
&destinationL2Id
|
|
);
|
|
pc5s_header->sourceL2Id = sourceL2Id;
|
|
pc5s_header->destinationL2Id=destinationL2Id;
|
|
}
|
|
} /* end of !ctxt.enb_flag */
|
|
|
|
default:
|
|
LOG_D(PDCP, "pc5s message type %d, unknown...\n", pc5s_header->traffic_type);
|
|
break;
|
|
} /* end of switch */
|
|
}/* end of bytes_received > 0 */
|
|
if (pc5s_header != NULL) {
|
|
free(pc5s_header);
|
|
pc5s_header = NULL;
|
|
}
|
|
} /* pdcp_fifo_read_input_sdus_frompc5s */
|
|
|
|
//-----------------------------------------------------------------------------
|
|
int pdcp_fifo_read_input_sdus (const protocol_ctxt_t *const ctxt_pP) {
|
|
if (UE_NAS_USE_TUN || ENB_NAS_USE_TUN) {
|
|
return pdcp_fifo_read_input_sdus_fromtun (ctxt_pP);
|
|
} else if (PDCP_USE_NETLINK) {
|
|
pdcp_fifo_read_input_sdus_frompc5s (ctxt_pP);
|
|
return pdcp_fifo_read_input_sdus_fromnetlinksock(ctxt_pP);
|
|
} /* PDCP_USE_NETLINK */
|
|
|
|
return 0;
|
|
}
|
|
|
|
//TTN for D2D (PC5S)
|
|
|
|
void
|
|
pdcp_pc5_socket_init() {
|
|
//pthread_attr_t attr;
|
|
//struct sched_param sched_param;
|
|
int optval; // flag value for setsockopt
|
|
//int n; // message byte size
|
|
//create PDCP socket
|
|
pdcp_pc5_sockfd = socket(AF_INET, SOCK_DGRAM, 0);
|
|
|
|
if (pdcp_pc5_sockfd < 0) {
|
|
LOG_E(PDCP,"[pdcp_pc5_socket_init] Error opening socket %d (%d:%s)\n",pdcp_pc5_sockfd,errno, strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
optval = 1;
|
|
setsockopt(pdcp_pc5_sockfd, SOL_SOCKET, SO_REUSEADDR,
|
|
(const void *)&optval, sizeof(int));
|
|
fcntl(pdcp_pc5_sockfd,F_SETFL,O_NONBLOCK);
|
|
bzero((char *) &pdcp_sin, sizeof(pdcp_sin));
|
|
pdcp_sin.sin_family = AF_INET;
|
|
pdcp_sin.sin_addr.s_addr = htonl(INADDR_ANY);
|
|
pdcp_sin.sin_port = htons(PDCP_SOCKET_PORT_NO);
|
|
|
|
// associate the parent socket with a port
|
|
if (bind(pdcp_pc5_sockfd, (struct sockaddr *) &pdcp_sin,
|
|
sizeof(pdcp_sin)) < 0) {
|
|
LOG_E(PDCP,"[pdcp_pc5_socket_init] ERROR: Failed on binding the socket\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|