821 lines
36 KiB
C
821 lines
36 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file pdcp_fifo.c
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* \brief pdcp interface with linux IP interface, have a look at http://man7.org/linux/man-pages/man7/netlink.7.html for netlink
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* \author Navid Nikaein and Lionel GAUTHIER
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* \date 2009 - 2016
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* \version 0.5
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* \email navid.nikaein@eurecom.fr
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* \warning This component can be runned only in user-space
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* @ingroup pdcp
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*/
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#define PDCP_FIFO_C
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extern int otg_enabled;
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#include "pdcp.h"
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#include "pdcp_primitives.h"
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#include <pthread.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define rtf_put write
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#define rtf_get read
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#include "../MAC/mac_extern.h"
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#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
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#include "NETWORK_DRIVER/LITE/constant.h"
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//#include "SIMULATION/ETH_TRANSPORT/extern.h"
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#include "UTIL/OCG/OCG.h"
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#include "UTIL/OCG/OCG_extern.h"
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#include "common/utils/LOG/log.h"
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#include "UTIL/OTG/otg_tx.h"
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#include "UTIL/FIFO/pad_list.h"
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#include "common/utils/LOG/vcd_signal_dumper.h"
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#include "platform_constants.h"
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#include "msc.h"
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#include "pdcp.h"
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#include "assertions.h"
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#include <sys/socket.h>
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#include <linux/netlink.h>
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#include "NETWORK_DRIVER/UE_IP/constant.h"
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extern char nl_rx_buf[NL_MAX_PAYLOAD];
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extern struct sockaddr_nl nas_src_addr, nas_dest_addr;
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extern struct nlmsghdr *nas_nlh_tx;
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extern struct nlmsghdr *nas_nlh_rx;
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extern struct iovec nas_iov_tx;
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extern struct iovec nas_iov_rx;
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extern int nas_sock_fd[MAX_MOBILES_PER_ENB];
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extern struct msghdr nas_msg_tx;
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extern struct msghdr nas_msg_rx;
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extern uint8_t nfapi_mode;
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#ifdef UESIM_EXPANSION
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extern uint16_t inst_pdcp_list[NUMBER_OF_UE_MAX];
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#endif
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extern Packet_OTG_List_t *otg_pdcp_buffer;
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# include "gtpv1u_eNB_task.h"
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# include "gtpv1u_eNB_defs.h"
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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);
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void debug_pdcp_pc5s_sdu(sidelink_pc5s_element *sl_pc5s_msg, char *title) {
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LOG_I(PDCP,"%s: \nPC5S message, header traffic_type: %d)\n", title, sl_pc5s_msg->pc5s_header.traffic_type);
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LOG_I(PDCP,"PC5S message, header rb_id: %d)\n", sl_pc5s_msg->pc5s_header.rb_id);
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LOG_I(PDCP,"PC5S message, header data_size: %d)\n", sl_pc5s_msg->pc5s_header.data_size);
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LOG_I(PDCP,"PC5S message, header inst: %d)\n", sl_pc5s_msg->pc5s_header.inst);
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LOG_I(PDCP,"PC5-S message, sourceL2Id: 0x%08x\n)\n", sl_pc5s_msg->pc5s_header.sourceL2Id);
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LOG_I(PDCP,"PC5-S message, destinationL1Id: 0x%08x\n)\n", sl_pc5s_msg->pc5s_header.destinationL2Id);
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}
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//-----------------------------------------------------------------------------
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int pdcp_fifo_flush_sdus(const protocol_ctxt_t *const ctxt_pP) {
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mem_block_t *sdu_p;
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int pdcp_nb_sdu_sent = 0;
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int ret=0;
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while ((sdu_p = list_get_head (&pdcp_sdu_list)) != NULL) {
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((pdcp_data_ind_header_t *)(sdu_p->data))->inst = 0;
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int rb_id = ((pdcp_data_ind_header_t *)(sdu_p->data))->rb_id;
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int sizeToWrite= sizeof (pdcp_data_ind_header_t) +
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((pdcp_data_ind_header_t *) sdu_p->data)->data_size;
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if (rb_id == 10) { //hardcoded for PC5-Signaling
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if( LOG_DEBUGFLAG(DEBUG_PDCP) ) {
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debug_pdcp_pc5s_sdu((sidelink_pc5s_element *)&(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),
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"pdcp_fifo_flush_sdus received aPC5S message");
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}
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ret = sendto(pdcp_pc5_sockfd, &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),
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sizeof(sidelink_pc5s_element), 0, (struct sockaddr *)&prose_pdcp_addr,sizeof(prose_pdcp_addr) );
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} else if (UE_NAS_USE_TUN) {
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ret = write(nas_sock_fd[ctxt_pP->module_id], &(sdu_p->data[sizeof(pdcp_data_ind_header_t)]),sizeToWrite );
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} else if (PDCP_USE_NETLINK) {//UE_NAS_USE_TUN
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memcpy(NLMSG_DATA(nas_nlh_tx), (uint8_t *) sdu_p->data, sizeToWrite);
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nas_nlh_tx->nlmsg_len = sizeToWrite;
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ret = sendmsg(nas_sock_fd[0],&nas_msg_tx,0);
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} // PDCP_USE_NETLINK
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AssertFatal(ret >= 0,"[PDCP_FIFOS] pdcp_fifo_flush_sdus (errno: %d %s)\n", errno, strerror(errno));
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list_remove_head (&pdcp_sdu_list);
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free_mem_block (sdu_p, __func__);
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pdcp_nb_sdu_sent ++;
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}
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return pdcp_nb_sdu_sent;
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}
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//-----------------------------------------------------------------------------
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int pdcp_fifo_read_input_sdus (const protocol_ctxt_t *const ctxt_pP) {
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pdcp_data_req_header_t pdcp_read_header_g;
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if (UE_NAS_USE_TUN) {
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protocol_ctxt_t ctxt = *ctxt_pP;
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hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
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hashtable_rc_t h_rc;
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pdcp_t *pdcp_p = NULL;
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int len;
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rb_id_t rab_id = DEFAULT_RAB_ID;
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do {
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ, 1 );
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ_BUFFER, 1 );
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len = read(nas_sock_fd[ctxt_pP->module_id], &nl_rx_buf, NL_MAX_PAYLOAD);
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ_BUFFER, 0 );
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if (len<=0) continue;
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LOG_D(PDCP, "PDCP_COLL_KEY_DEFAULT_DRB_VALUE(module_id=%d, rnti=%x, enb_flag=%d)\n",
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ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
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key = PDCP_COLL_KEY_DEFAULT_DRB_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
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h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
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if (h_rc == HASH_TABLE_OK) {
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LOG_D(PDCP, "[FRAME %5u][UE][NETLINK][IP->PDCP] INST %d: Received socket with length %d on Rab %d \n",
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ctxt.frame, ctxt.instance, len, rab_id);
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LOG_D(PDCP, "[FRAME %5u][UE][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB %u]\n",
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ctxt.frame, ctxt.instance, rab_id, len, ctxt.module_id,
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ctxt.rnti, rab_id);
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MSC_LOG_RX_MESSAGE((ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
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(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
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NULL, 0,
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MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
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MSC_AS_TIME_ARGS(ctxt_pP),
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ctxt.instance, rab_id, rab_id, len);
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pdcp_data_req(&ctxt, SRB_FLAG_NO, rab_id, RLC_MUI_UNDEFINED,
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RLC_SDU_CONFIRM_NO, len, (unsigned char *)nl_rx_buf,
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PDCP_TRANSMISSION_MODE_DATA
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, NULL, NULL
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);
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} else {
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MSC_LOG_RX_DISCARDED_MESSAGE(
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(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
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(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
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NULL,
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0,
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MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
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MSC_AS_TIME_ARGS(ctxt_pP),
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ctxt.instance, rab_id, rab_id, len);
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LOG_D(PDCP,
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"[FRAME %5u][UE][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %u] NON INSTANCIATED INSTANCE key 0x%"PRIx64", DROPPED\n",
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ctxt.frame, ctxt.instance, rab_id, len, ctxt.module_id,
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ctxt.rnti, rab_id, key);
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}
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} while (len > 0);
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ, 0 );
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return len;
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} else { /* UE_NAS_USE_TUN */
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if (PDCP_USE_NETLINK) {
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protocol_ctxt_t ctxt_cpy = *ctxt_pP;
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protocol_ctxt_t ctxt;
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hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
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hashtable_rc_t h_rc;
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struct pdcp_netlink_element_s *data_p = NULL;
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/* avoid gcc warnings */
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(void)data_p;
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module_id_t ue_id = 0;
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pdcp_t *pdcp_p = NULL;
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//TTN for D2D (PC5S)
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int prose_addr_len;
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char send_buf[BUFSIZE], receive_buf[BUFSIZE];
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//int optval;
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int bytes_received;
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sidelink_pc5s_element *sl_pc5s_msg_recv = NULL;
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sidelink_pc5s_element *sl_pc5s_msg_send = NULL;
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//uint32_t sourceL2Id;
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//uint32_t groupL2Id;
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//module_id_t module_id = 0;
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pc5s_header_t *pc5s_header;
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static unsigned char pdcp_read_state_g =0;
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int len = 1;
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int msg_len;
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rb_id_t rab_id = 0;
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int rlc_data_req_flag = 3;
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//TTN for D2D (PC5S)
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prose_addr_len = sizeof(prose_pdcp_addr);
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// receive a message from ProSe App
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memset(receive_buf, 0, BUFSIZE);
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bytes_received = recvfrom(pdcp_pc5_sockfd, receive_buf, BUFSIZE, 0,
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(struct sockaddr *) &prose_pdcp_addr, (socklen_t *)&prose_addr_len);
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// if (bytes_received < 0){
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// LOG_E(RRC, "ERROR: Failed to receive from ProSe App\n");
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// exit(EXIT_FAILURE);
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// }
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if (bytes_received > 0) {
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pc5s_header = calloc(1, sizeof(pc5s_header_t));
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memcpy((void *)pc5s_header, (void *)receive_buf, sizeof(pc5s_header_t));
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if (pc5s_header->traffic_type == TRAFFIC_PC5S_SESSION_INIT) {
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//send reply to ProSe app
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LOG_D(PDCP,"Received a request to open PDCP socket and establish a new PDCP session ... send response to ProSe App \n");
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memset(send_buf, 0, BUFSIZE);
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sl_pc5s_msg_send = calloc(1, sizeof(sidelink_pc5s_element));
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sl_pc5s_msg_send->pc5s_header.traffic_type = TRAFFIC_PC5S_SESSION_INIT;
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sl_pc5s_msg_send->pc5sPrimitive.status = 1;
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memcpy((void *)send_buf, (void *)sl_pc5s_msg_send, sizeof(sidelink_pc5s_element));
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int prose_addr_len = sizeof(prose_pdcp_addr);
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int bytes_sent = sendto(pdcp_pc5_sockfd, (char *)send_buf, sizeof(sidelink_pc5s_element), 0, (struct sockaddr *)&prose_pdcp_addr, prose_addr_len);
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if (bytes_sent < 0) {
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LOG_E(PDCP, "ERROR: Failed to send to ProSe App\n");
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exit(EXIT_FAILURE);
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}
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} else if (pc5s_header->traffic_type == TRAFFIC_PC5S_SIGNALLING) { //if containing PC5-S message -> send to other UE
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LOG_D(PDCP,"Received PC5-S message ... send to the other UE\n");
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LOG_D(PDCP,"Received PC5-S message, traffic_type: %d)\n", pc5s_header->traffic_type);
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LOG_D(PDCP,"Received PC5-S message, rbid: %d)\n", pc5s_header->rb_id);
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LOG_D(PDCP,"Received PC5-S message, data_size: %d)\n", pc5s_header->data_size);
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LOG_D(PDCP,"Received PC5-S message, inst: %d)\n", pc5s_header->inst);
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LOG_D(PDCP,"Received PC5-S message,sourceL2Id: 0x%08x\n)\n", pc5s_header->sourceL2Id);
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LOG_D(PDCP,"Received PC5-S message,destinationL1Id: 0x%08x\n)\n", pc5s_header->destinationL2Id);
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#ifdef OAI_EMU
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// overwrite function input parameters, because only one netlink socket for all instances
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if (pc5s_header->inst < oai_emulation.info.nb_enb_local) {
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ctxt.frame = ctxt_cpy.frame;
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ctxt.enb_flag = ENB_FLAG_YES;
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ctxt.module_id = pc5s_header.inst + oai_emulation.info.first_enb_local;
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ctxt.rnti = oai_emulation.info.eNB_ue_module_id_to_rnti[ctxt.module_id ][pc5s_header->rb_id / LTE_maxDRB + oai_emulation.info.first_ue_local];
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rab_id = pc5s_header->rb_id % LTE_maxDRB;
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} else {
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ctxt.frame = ctxt_cpy.frame;
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ctxt.enb_flag = ENB_FLAG_NO;
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ctxt.module_id = pc5s_header->inst - oai_emulation.info.nb_enb_local + oai_emulation.info.first_ue_local;
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ctxt.rnti = pdcp_UE_UE_module_id_to_rnti[ctxt.module_id];
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rab_id = pc5s_header->rb_id % LTE_maxDRB;
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}
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CHECK_CTXT_ARGS(&ctxt);
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AssertFatal (rab_id < LTE_maxDRB, "RB id is too high (%u/%d)!\n", rab_id, LTE_maxDRB);
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/*LGpdcp_read_header.inst = (pc5s_header.inst >= oai_emulation.info.nb_enb_local) ? \
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pc5s_header.inst - oai_emulation.info.nb_enb_local+ NB_eNB_INST + oai_emulation.info.first_ue_local :
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pc5s_header.inst + oai_emulation.info.first_enb_local;*/
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#else // OAI_EMU
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/* TODO: do we have to reset to 0 or not? not for a scenario with 1 UE at least */
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// pc5s_header.inst = 0;
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//#warning "TO DO CORRCT VALUES FOR ue mod id, enb mod id"
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ctxt.frame = ctxt_cpy.frame;
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ctxt.enb_flag = ctxt_cpy.enb_flag;
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LOG_I(PDCP, "[PDCP] pc5s_header->rb_id = %d\n", pc5s_header->rb_id);
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if (ctxt_cpy.enb_flag) {
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ctxt.module_id = 0;
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rab_id = pc5s_header->rb_id % LTE_maxDRB;
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ctxt.rnti = pdcp_eNB_UE_instance_to_rnti[pdcp_eNB_UE_instance_to_rnti_index];
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} else {
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ctxt.module_id = 0;
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rab_id = pc5s_header->rb_id % LTE_maxDRB;
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ctxt.rnti = pdcp_UE_UE_module_id_to_rnti[ctxt.module_id];
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}
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#endif
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//UE
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if (!ctxt.enb_flag) {
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if (rab_id != 0) {
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if (rab_id == UE_IP_DEFAULT_RAB_ID) {
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LOG_D(PDCP, "PDCP_COLL_KEY_DEFAULT_DRB_VALUE(module_id=%d, rnti=%x, enb_flag=%d)\n",
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ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
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key = PDCP_COLL_KEY_DEFAULT_DRB_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag);
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h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
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LOG_D(PDCP,"request key %x : (%d,%x,%d,%d)\n",
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(uint8_t)key,ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id);
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} else {
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rab_id = rab_id % LTE_maxDRB;
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LOG_I(PDCP, "PDCP_COLL_KEY_VALUE(module_id=%d, rnti=%x, enb_flag=%d, rab_id=%d, SRB_FLAG=%d)\n",
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ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
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key = PDCP_COLL_KEY_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
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h_rc = hashtable_get(pdcp_coll_p, key, (void **)&pdcp_p);
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LOG_I(PDCP,"request key %x : (%d,%x,%d,%d)\n",
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(uint8_t)key,ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id);
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}
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if (h_rc == HASH_TABLE_OK) {
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rab_id = pdcp_p->rb_id;
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LOG_I(PDCP, "[FRAME %5u][UE][NETLINK][IP->PDCP] INST %d: Received socket with length %d on Rab %d \n",
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ctxt.frame,
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pc5s_header->inst,
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bytes_received,
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pc5s_header->rb_id);
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LOG_I(PDCP, "[FRAME %5u][UE][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB %u]\n",
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ctxt.frame,
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pc5s_header->inst,
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pc5s_header->rb_id,
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pc5s_header->data_size,
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ctxt.module_id,
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ctxt.rnti,
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rab_id);
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MSC_LOG_RX_MESSAGE(
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
|
|
NULL,
|
|
0,
|
|
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
|
|
MSC_AS_TIME_ARGS(ctxt_pP),
|
|
pc5s_header->inst,
|
|
pc5s_header->rb_id,
|
|
rab_id,
|
|
pc5s_header->data_size);
|
|
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,
|
|
&pc5s_header->sourceL2Id,
|
|
&pc5s_header->destinationL2Id
|
|
);
|
|
} else {
|
|
MSC_LOG_RX_DISCARDED_MESSAGE(
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
|
|
NULL,
|
|
0,
|
|
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
|
|
MSC_AS_TIME_ARGS(ctxt_pP),
|
|
pc5s_header->inst,
|
|
pc5s_header->rb_id,
|
|
rab_id,
|
|
pc5s_header->data_size);
|
|
LOG_D(PDCP,
|
|
"[FRAME %5u][UE][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %u] 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 { //if (rab_id == 0)
|
|
LOG_D(PDCP, "Forcing send on DEFAULT_RAB_ID\n");
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %u][--- 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);
|
|
MSC_LOG_RX_MESSAGE(
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
|
|
NULL,0,
|
|
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u default rab %u size %u",
|
|
MSC_AS_TIME_ARGS(ctxt_pP),
|
|
pc5s_header->inst,
|
|
pc5s_header->rb_id,
|
|
DEFAULT_RAB_ID,
|
|
pc5s_header->data_size);
|
|
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,
|
|
&pc5s_header->sourceL2Id,
|
|
&pc5s_header->destinationL2Id
|
|
);
|
|
}
|
|
}
|
|
|
|
free (sl_pc5s_msg_recv);
|
|
free (sl_pc5s_msg_send);
|
|
}
|
|
}
|
|
|
|
|
|
while ((len > 0) && (rlc_data_req_flag !=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) {
|
|
// nothing in pdcp NAS socket
|
|
//LOG_D(PDCP, "[PDCP][NETLINK] Nothing in socket, length %d \n", len);
|
|
} else {
|
|
msg_len = len;
|
|
|
|
for (nas_nlh_rx = (struct nlmsghdr *) nl_rx_buf;
|
|
NLMSG_OK (nas_nlh_rx, msg_len);
|
|
nas_nlh_rx = NLMSG_NEXT (nas_nlh_rx, msg_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 %u 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));
|
|
#ifdef OAI_EMU
|
|
|
|
// overwrite function input parameters, because only one netlink socket for all instances
|
|
if (pdcp_read_header_g.inst < oai_emulation.info.nb_enb_local) {
|
|
ctxt.frame = ctxt_cpy.frame;
|
|
ctxt.enb_flag = ENB_FLAG_YES;
|
|
ctxt.module_id = pdcp_read_header_g.inst + oai_emulation.info.first_enb_local;
|
|
ctxt.rnti = oai_emulation.info.eNB_ue_module_id_to_rnti[ctxt.module_id ][pdcp_read_header_g.rb_id / LTE_maxDRB + oai_emulation.info.first_ue_local];
|
|
rab_id = pdcp_read_header_g.rb_id % LTE_maxDRB;
|
|
} else {
|
|
ctxt.frame = ctxt_cpy.frame;
|
|
ctxt.enb_flag = ENB_FLAG_NO;
|
|
ctxt.module_id = pdcp_read_header_g.inst - oai_emulation.info.nb_enb_local + oai_emulation.info.first_ue_local;
|
|
ctxt.rnti = pdcp_UE_UE_module_id_to_rnti[ctxt.module_id];
|
|
rab_id = pdcp_read_header_g.rb_id % LTE_maxDRB;
|
|
}
|
|
|
|
CHECK_CTXT_ARGS(&ctxt);
|
|
AssertFatal (rab_id < LTE_maxDRB, "RB id is too high (%u/%d)!\n", rab_id, LTE_maxDRB);
|
|
#else // OAI_EMU
|
|
/* 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 = %d, 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_cpy.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];
|
|
} else {
|
|
if (nfapi_mode == 3) {
|
|
#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];
|
|
}
|
|
|
|
#endif
|
|
|
|
if (ctxt.enb_flag) {
|
|
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 %d \n",
|
|
ctxt.frame,
|
|
pdcp_read_header_g.inst,
|
|
len,
|
|
nas_nlh_rx->nlmsg_len-sizeof(struct nlmsghdr),
|
|
pdcp_read_header_g.rb_id);
|
|
MSC_LOG_RX_MESSAGE(
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
|
|
NULL,
|
|
0,
|
|
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
|
|
MSC_AS_TIME_ARGS(ctxt_pP),
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
rab_id,
|
|
pdcp_read_header_g.data_size);
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u]UE %u][RB %u]\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 %u][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %u] 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
|
|
for (ue_id = 0; ue_id < NB_UE_INST; ue_id++) {
|
|
if (oai_emulation.info.eNB_ue_module_id_to_rnti[ctxt_cpy.module_id][ue_id] != NOT_A_RNTI) {
|
|
ctxt.rnti = oai_emulation.info.eNB_ue_module_id_to_rnti[ctxt_cpy.module_id][ue_id];
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %u][--- 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
|
|
,NULL, NULL
|
|
);
|
|
}
|
|
}
|
|
}
|
|
} else { // 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,%d)\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=%d, 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,%d)\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 %d \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 %u][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB %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,
|
|
rab_id);
|
|
|
|
MSC_LOG_RX_MESSAGE(
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
|
|
NULL,
|
|
0,
|
|
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
|
|
MSC_AS_TIME_ARGS(ctxt_pP),
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
rab_id,
|
|
pdcp_read_header_g.data_size);
|
|
|
|
if(nfapi_mode == 3) {
|
|
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 {
|
|
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,
|
|
&pdcp_read_header_g.sourceL2Id,
|
|
&pdcp_read_header_g.destinationL2Id
|
|
);
|
|
}
|
|
} else {
|
|
MSC_LOG_RX_DISCARDED_MESSAGE(
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
|
|
NULL,
|
|
0,
|
|
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
|
|
MSC_AS_TIME_ARGS(ctxt_pP),
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
rab_id,
|
|
pdcp_read_header_g.data_size);
|
|
LOG_D(PDCP,
|
|
"[FRAME %5u][UE][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %u] 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);
|
|
}
|
|
} else {
|
|
LOG_D(PDCP, "Forcing send on DEFAULT_RAB_ID\n");
|
|
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %u][--- 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);
|
|
MSC_LOG_RX_MESSAGE(
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
|
|
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
|
|
NULL,0,
|
|
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u default rab %u size %u",
|
|
MSC_AS_TIME_ARGS(ctxt_pP),
|
|
pdcp_read_header_g.inst,
|
|
pdcp_read_header_g.rb_id,
|
|
DEFAULT_RAB_ID,
|
|
pdcp_read_header_g.data_size);
|
|
|
|
if(nfapi_mode == 3) {
|
|
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,
|
|
NULL,
|
|
NULL
|
|
);
|
|
} else {
|
|
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,
|
|
&pdcp_read_header_g.sourceL2Id,
|
|
&pdcp_read_header_g.destinationL2Id
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_FIFO_READ, 0 );
|
|
}
|
|
|
|
return len;
|
|
} else { /* PDCP_USE_NETLINK */
|
|
return 0;
|
|
} // else PDCP_USE_NETLINK
|
|
} /* #else UE_NAS_USE_TUN */
|
|
}
|
|
|
|
|
|
void pdcp_fifo_read_input_sdus_from_otg (const protocol_ctxt_t *const ctxt_pP) {
|
|
module_id_t dst_id; // dst for otg
|
|
protocol_ctxt_t ctxt;
|
|
|
|
// we need to add conditions to avoid transmitting data when the UE is not RRC connected.
|
|
if ((otg_enabled==1) && (ctxt_pP->enb_flag == ENB_FLAG_YES)) { // generate DL traffic
|
|
PROTOCOL_CTXT_SET_BY_MODULE_ID(
|
|
&ctxt,
|
|
ctxt_pP->module_id,
|
|
ctxt_pP->enb_flag,
|
|
NOT_A_RNTI,
|
|
ctxt_pP->frame,
|
|
ctxt_pP->subframe,
|
|
ctxt_pP->module_id);
|
|
|
|
for (dst_id = 0; dst_id<MAX_MOBILES_PER_ENB; dst_id++) {
|
|
ctxt.rnti = oai_emulation.info.eNB_ue_module_id_to_rnti[ctxt.module_id][dst_id];
|
|
}
|
|
}
|
|
}
|
|
|
|
//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);
|
|
}
|
|
}
|
|
|