/******************************************************************************* Eurecom OpenAirInterface Copyright(c) 1999 - 2011 Eurecom This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, version 2, as published by the Free Software Foundation. This program is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. The full GNU General Public License is included in this distribution in the file called "COPYING". Contact Information Openair Admin: openair_admin@eurecom.fr Openair Tech : openair_tech@eurecom.fr Forums : http://forums.eurecom.fsr/openairinterface Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France *******************************************************************************/ /*! \file pdcp.c * \brief pdcp interface with RLC * \author Lionel GAUTHIER and Navid Nikaein * \date 2009-2012 * \version 1.0 */ #define PDCP_C #ifndef USER_MODE #include #endif #include "assertions.h" #include "pdcp.h" #include "pdcp_util.h" #include "pdcp_sequence_manager.h" #include "LAYER2/RLC/rlc.h" #include "LAYER2/MAC/extern.h" #include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h" #include "pdcp_primitives.h" #include "OCG.h" #include "OCG_extern.h" #include "UTIL/LOG/log.h" #include #include "platform_constants.h" #include "UTIL/LOG/vcd_signal_dumper.h" #if defined(ENABLE_SECURITY) # include "UTIL/OSA/osa_defs.h" #endif #if defined(ENABLE_ITTI) # include "intertask_interface.h" #endif #ifndef OAI_EMU extern int otg_enabled; #endif //extern char *packet_gen(int src, int dst, int ctime, int *pkt_size); extern int otg_rx_pkt( int src, int dst, int ctime, char *buffer_tx, unsigned int size); //----------------------------------------------------------------------------- /* * If PDCP_UNIT_TEST is set here then data flow between PDCP and RLC is broken * and PDCP has no longer anything to do with RLC. In this case, after it's handed * an SDU it appends PDCP header and returns (by filling in incoming pointer parameters) * this mem_block_t to be dissected for testing purposes. For further details see test * code at targets/TEST/PDCP/test_pdcp.c:test_pdcp_data_req() */ BOOL pdcp_data_req(module_id_t enb_mod_idP, module_id_t ue_mod_idP, frame_t frameP, eNB_flag_t enb_flagP, rb_id_t rb_idP, mui_t muiP, u32 confirmP, sdu_size_t sdu_buffer_sizeP, unsigned char* sdu_buffer_pP, u8 modeP) { //----------------------------------------------------------------------------- pdcp_t *pdcp_p = NULL; u8 i = 0; u8 pdcp_header_len = 0; u8 pdcp_tailer_len = 0; u16 pdcp_pdu_size = 0; u16 current_sn = 0; mem_block_t *pdcp_pdu_p = NULL; rlc_op_status_t rlc_status; rb_id_t rb_id_rlc = 0; AssertError (enb_mod_idP < NUMBER_OF_eNB_MAX, return FALSE, "eNB id is too high (%u/%d) %u %u!\n", enb_mod_idP, NUMBER_OF_eNB_MAX, ue_mod_idP, rb_idP); AssertError (ue_mod_idP < NUMBER_OF_UE_MAX, return FALSE, "UE id is too high (%u/%d) %u %u!\n", ue_mod_idP, NUMBER_OF_UE_MAX, enb_mod_idP, rb_idP); AssertError (rb_idP < NB_RB_MAX, return FALSE, "RB id is too high (%u/%d) %u %u!\n", rb_idP, NB_RB_MAX, ue_mod_idP, enb_mod_idP); if (enb_flagP == 0) { pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_idP]; } else { pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_idP]; } if ((pdcp_p->instanciated_instance == 0) && (modeP != PDCP_TM)) { if (enb_flagP == 0) { LOG_W(PDCP, "[UE %d] Instance is not configured for eNB %d, rb_id %d Ignoring SDU...\n", ue_mod_idP, enb_mod_idP, rb_idP); } else { LOG_W(PDCP, "[eNB %d] Instance is not configured for UE %d, rb_id %d Ignoring SDU...\n", enb_mod_idP, ue_mod_idP, rb_idP); } return FALSE; } if (sdu_buffer_sizeP == 0) { LOG_W(PDCP, "Handed SDU is of size 0! Ignoring...\n"); return FALSE; } /* * XXX MAX_IP_PACKET_SIZE is 4096, shouldn't this be MAX SDU size, which is 8188 bytes? */ if (sdu_buffer_sizeP > MAX_IP_PACKET_SIZE) { LOG_E(PDCP, "Requested SDU size (%d) is bigger than that can be handled by PDCP (%u)!\n", sdu_buffer_sizeP, MAX_IP_PACKET_SIZE); // XXX What does following call do? mac_xface->macphy_exit("PDCP sdu buffer size > MAX_IP_PACKET_SIZE"); } // PDCP transparent mode for MBMS traffic if (modeP == PDCP_TM) { LOG_D(PDCP, " [TM] Asking for a new mem_block of size %d\n",sdu_buffer_sizeP); pdcp_pdu_p = get_free_mem_block(sdu_buffer_sizeP); if (pdcp_pdu_p != NULL) { memcpy(&pdcp_pdu_p->data[0], sdu_buffer_pP, sdu_buffer_sizeP); rlc_status = rlc_data_req(enb_mod_idP, ue_mod_idP, frameP, enb_flagP, RLC_MBMS_YES, rb_idP, muiP, confirmP, sdu_buffer_sizeP, pdcp_pdu_p); } else { rlc_status = RLC_OP_STATUS_OUT_OF_RESSOURCES; #if defined(STOP_ON_IP_TRAFFIC_OVERLOAD) AssertFatal(0, "[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u] PDCP_DATA_REQ SDU DROPPED, OUT OF MEMORY \n", frameP, (enb_flagP) ? "eNB" : "UE", enb_mod_idP, ue_mod_idP, rb_idP); #endif } } else { // calculate the pdcp header and trailer size if (rb_idP < DTCH) { pdcp_header_len = PDCP_CONTROL_PLANE_DATA_PDU_SN_SIZE; pdcp_tailer_len = PDCP_CONTROL_PLANE_DATA_PDU_MAC_I_SIZE; } else { pdcp_header_len = PDCP_USER_PLANE_DATA_PDU_LONG_SN_HEADER_SIZE; pdcp_tailer_len = 0; } pdcp_pdu_size = sdu_buffer_sizeP + pdcp_header_len + pdcp_tailer_len; LOG_I(PDCP, "Data request notification for PDCP entity %s enb id %u ue_id %u and radio bearer ID %d pdu size %d (header%d, trailer%d)\n", (enb_flagP) ? "eNB" : "UE", enb_mod_idP, ue_mod_idP, rb_idP, pdcp_pdu_size, pdcp_header_len, pdcp_tailer_len); /* * Allocate a new block for the new PDU (i.e. PDU header and SDU payload) */ LOG_D(PDCP, "Asking for a new mem_block of size %d\n", pdcp_pdu_size); pdcp_pdu_p = get_free_mem_block(pdcp_pdu_size); if (pdcp_pdu_p != NULL) { /* * Create a Data PDU with header and append data * * Place User Plane PDCP Data PDU header first */ if ((rb_idP % NB_RB_MAX) < DTCH) { // this Control plane PDCP Data PDU pdcp_control_plane_data_pdu_header pdu_header; pdu_header.sn = pdcp_get_next_tx_seq_number(pdcp_p); current_sn = pdu_header.sn; memset(&pdu_header.mac_i[0],0,PDCP_CONTROL_PLANE_DATA_PDU_MAC_I_SIZE); if (pdcp_serialize_control_plane_data_pdu_with_SRB_sn_buffer((unsigned char*)pdcp_pdu_p->data, &pdu_header) == FALSE) { LOG_E(PDCP, "Cannot fill PDU buffer with relevant header fields!\n"); return FALSE; } } else { pdcp_user_plane_data_pdu_header_with_long_sn pdu_header; pdu_header.dc = (modeP == 1) ? PDCP_DATA_PDU : PDCP_CONTROL_PDU; pdu_header.sn = pdcp_get_next_tx_seq_number(pdcp_p); current_sn = pdu_header.sn ; if (pdcp_serialize_user_plane_data_pdu_with_long_sn_buffer((unsigned char*)pdcp_pdu_p->data, &pdu_header) == FALSE) { LOG_E(PDCP, "Cannot fill PDU buffer with relevant header fields!\n"); return FALSE; } } /* * Validate incoming sequence number, there might be a problem with PDCP initialization */ if (current_sn > pdcp_calculate_max_seq_num_for_given_size(pdcp_p->seq_num_size)) { LOG_E(PDCP, "Generated sequence number (%lu) is greater than a sequence number could ever be!\n", current_sn); LOG_E(PDCP, "There must be a problem with PDCP initialization, ignoring this PDU...\n"); free_mem_block(pdcp_pdu_p); return FALSE; } LOG_D(PDCP, "Sequence number %d is assigned to current PDU\n", current_sn); /* Then append data... */ memcpy(&pdcp_pdu_p->data[pdcp_header_len], sdu_buffer_pP, sdu_buffer_sizeP); //For control plane data that are not integrity protected, // the MAC-I field is still present and should be padded with padding bits set to 0. // NOTE: user-plane data are never integrity protected for (i=0;idata[pdcp_header_len + sdu_buffer_sizeP + i] = 0x00;// pdu_header.mac_i[i]; #if defined(ENABLE_SECURITY) if ((pdcp->security_activated != 0) && ((pdcp->cipheringAlgorithm) != 0) && ((pdcp->integrityProtAlgorithm) != 0)) { pdcp_apply_security(pdcp, rb_id % NB_RB_MAX, pdcp_header_len, current_sn, pdcp_pdu->data, sdu_buffer_size); } #endif /* Print octets of outgoing data in hexadecimal form */ LOG_D(PDCP, "Following content with size %d will be sent over RLC (PDCP PDU header is the first two bytes)\n", pdcp_pdu_size); //util_print_hex_octets(PDCP, (unsigned char*)pdcp_pdu_p->data, pdcp_pdu_size); //util_flush_hex_octets(PDCP, (unsigned char*)pdcp_pdu->data, pdcp_pdu_size); } else { LOG_E(PDCP, "Cannot create a mem_block for a PDU!\n"); #if defined(STOP_ON_IP_TRAFFIC_OVERLOAD) AssertFatal(0, "[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u] PDCP_DATA_REQ SDU DROPPED, OUT OF MEMORY \n", frameP, (enb_flagP) ? "eNB" : "UE", enb_mod_idP, ue_mod_idP, rb_idP); #endif return FALSE; } /* * Ask sublayer to transmit data and check return value * to see if RLC succeeded */ rlc_status = rlc_data_req(enb_mod_idP, ue_mod_idP, frameP, enb_flagP, 0, rb_idP, muiP, confirmP, pdcp_pdu_size, pdcp_pdu_p); } switch (rlc_status) { case RLC_OP_STATUS_OK: LOG_D(PDCP, "Data sending request over RLC succeeded!\n"); break; case RLC_OP_STATUS_BAD_PARAMETER: LOG_W(PDCP, "Data sending request over RLC failed with 'Bad Parameter' reason!\n"); return FALSE; case RLC_OP_STATUS_INTERNAL_ERROR: LOG_W(PDCP, "Data sending request over RLC failed with 'Internal Error' reason!\n"); return FALSE; case RLC_OP_STATUS_OUT_OF_RESSOURCES: LOG_W(PDCP, "Data sending request over RLC failed with 'Out of Resources' reason!\n"); return FALSE; default: LOG_W(PDCP, "RLC returned an unknown status code after PDCP placed the order to send some data (Status Code:%d)\n", rlc_status); return FALSE; } /* * Control arrives here only if rlc_data_req() returns RLC_OP_STATUS_OK * so we return TRUE afterwards */ /* if (rb_id>=DTCH) { if (eNB_flag == 1) { Pdcp_stats_tx[module_id][(rb_id & RAB_OFFSET2 )>> RAB_SHIFT2][(rb_id & RAB_OFFSET)-DTCH]++; Pdcp_stats_tx_bytes[module_id][(rb_id & RAB_OFFSET2 )>> RAB_SHIFT2][(rb_id & RAB_OFFSET)-DTCH] += sdu_buffer_size; } else { Pdcp_stats_tx[module_id][(rb_id & RAB_OFFSET2 )>> RAB_SHIFT2][(rb_id & RAB_OFFSET)-DTCH]++; Pdcp_stats_tx_bytes[module_id][(rb_id & RAB_OFFSET2 )>> RAB_SHIFT2][(rb_id & RAB_OFFSET)-DTCH] += sdu_buffer_size; } }*/ return TRUE; } BOOL pdcp_data_ind(module_id_t enb_mod_idP, module_id_t ue_mod_idP, frame_t frameP, eNB_flag_t enb_flagP, u8_t MBMS_flagP, rb_id_t rb_idP, sdu_size_t sdu_buffer_sizeP, \ mem_block_t* sdu_buffer_pP, u8 is_data_planeP) { //----------------------------------------------------------------------------- pdcp_t *pdcp_p = NULL; list_t *sdu_list_p = NULL; mem_block_t *new_sdu_p = NULL; u8 pdcp_header_len = 0; u8 pdcp_tailer_len = 0; u16 sequence_number = 0; u8 payload_offset = 0; AssertFatal (enb_mod_idP >= oai_emulation.info.first_enb_local, "eNB inst is too low (%u/%d)!\n", enb_mod_idP, oai_emulation.info.first_enb_local); AssertFatal (enb_mod_idP < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local), "eNB inst is too high (%u/%d)!\n", enb_mod_idP, oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local); AssertFatal (ue_mod_idP >= oai_emulation.info.first_ue_local, "UE inst is too low (%u/%d)!\n", ue_mod_idP, oai_emulation.info.first_ue_local); AssertFatal (ue_mod_idP < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local), "UE inst is too high (%u/%d)!\n", ue_mod_idP, oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); DevCheck4(rb_idP < NB_RB_MAX, rb_idP, NB_RB_MAX, enb_mod_idP, ue_mod_idP); if (enb_flagP == 0) { pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_idP]; LOG_I(PDCP, "Data indication notification for PDCP entity from eNB %u to UE %u " "and radio bearer ID %d rlc sdu size %d eNB_flag %d\n", ue_mod_idP, enb_mod_idP, rb_idP, sdu_buffer_sizeP, enb_flagP); } else { pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_idP]; LOG_I(PDCP, "Data indication notification for PDCP entity from UE %u to eNB %u " "and radio bearer ID %d rlc sdu size %d eNB_flag %d eNB_id %d\n", enb_mod_idP, ue_mod_idP, rb_idP, sdu_buffer_sizeP, enb_flagP, enb_mod_idP); } sdu_list_p = &pdcp_sdu_list; # if (sdu_buffer_sizeP == 0) { LOG_W(PDCP, "SDU buffer size is zero! Ignoring this chunk!\n"); return FALSE; } /* * Check if incoming SDU is long enough to carry a PDU header */ if (MBMS_flagP == 0 ) { if ((rb_idP % NB_RB_MAX) < DTCH) { pdcp_header_len = PDCP_CONTROL_PLANE_DATA_PDU_SN_SIZE; pdcp_tailer_len = PDCP_CONTROL_PLANE_DATA_PDU_MAC_I_SIZE; } else { pdcp_header_len = PDCP_USER_PLANE_DATA_PDU_LONG_SN_HEADER_SIZE; pdcp_tailer_len = 0; } if (sdu_buffer_sizeP < pdcp_header_len + pdcp_tailer_len ) { LOG_W(PDCP, "Incoming (from RLC) SDU is short of size (size:%d)! Ignoring...\n", sdu_buffer_sizeP); free_mem_block(sdu_buffer_pP); return FALSE; } /* * Parse the PDU placed at the beginning of SDU to check * if incoming SN is in line with RX window */ if (pdcp_header_len == PDCP_USER_PLANE_DATA_PDU_LONG_SN_HEADER_SIZE) { // DRB sequence_number = pdcp_get_sequence_number_of_pdu_with_long_sn((unsigned char*)sdu_buffer_pP->data); // u8 dc = pdcp_get_dc_filed((unsigned char*)sdu_buffer->data); } else { //SRB1/2 sequence_number = pdcp_get_sequence_number_of_pdu_with_SRB_sn((unsigned char*)sdu_buffer_pP->data); } if (pdcp_is_rx_seq_number_valid(sequence_number, pdcp_p) == TRUE) { LOG_D(PDCP, "Incoming PDU has a sequence number (%d) in accordance with RX window\n", sequence_number); /* if (dc == PDCP_DATA_PDU ) LOG_D(PDCP, "Passing piggybacked SDU to NAS driver...\n"); else LOG_D(PDCP, "Passing piggybacked SDU to RRC ...\n");*/ } else { LOG_W(PDCP, "Incoming PDU has an unexpected sequence number (%d), RX window snychronisation have probably been lost!\n", sequence_number); /* * XXX Till we implement in-sequence delivery and duplicate discarding * mechanism all out-of-order packets will be delivered to RRC/IP */ #if 0 LOG_D(PDCP, "Ignoring PDU...\n"); free_mem_block(sdu_buffer); return FALSE; #else LOG_W(PDCP, "Delivering out-of-order SDU to upper layer...\n"); #endif } // SRB1/2: control-plane data if ( (rb_idP % NB_RB_MAX) < DTCH ){ #if defined(ENABLE_SECURITY) if (pdcp->security_activated == 1) { pdcp_validate_security(pdcp, rb_id, pdcp_header_len, sequence_number, sdu_buffer->data, sdu_buffer_size - pdcp_tailer_len); } #endif //rrc_lite_data_ind(module_id, //Modified MW - L2 Interface pdcp_rrc_data_ind(enb_mod_idP, ue_mod_idP, frameP, enb_flagP, rb_idP, sdu_buffer_sizeP - pdcp_header_len - pdcp_tailer_len, (u8*)&sdu_buffer_pP->data[pdcp_header_len]); free_mem_block(sdu_buffer_pP); // free_mem_block(new_sdu); return TRUE; } payload_offset=PDCP_USER_PLANE_DATA_PDU_LONG_SN_HEADER_SIZE; #if defined(ENABLE_SECURITY) if (pdcp->security_activated == 1) { pdcp_validate_security(pdcp_p, rb_idP % NB_RB_MAX, pdcp_header_len, sequence_number, sdu_buffer->data, sdu_buffer_size - pdcp_tailer_len); } #endif } else { payload_offset=0; } #if defined(USER_MODE) && defined(OAI_EMU) if (oai_emulation.info.otg_enabled == 1) { module_id_t src_id, dst_id; int ctime; src_id = (enb_flagP != 0) ? ue_mod_idP : enb_mod_idP; dst_id = (enb_flagP == 0) ? ue_mod_idP : enb_mod_idP; ctime = oai_emulation.info.time_ms; // avg current simulation time in ms : we may get the exact time through OCG? LOG_D(PDCP, "Check received buffer : enb_flag %d rab id %d (src %d, dst %d)\n", enb_flagP, rb_idP, src_id, dst_id); if (otg_rx_pkt(src_id, dst_id,ctime,&sdu_buffer_pP->data[payload_offset], sdu_buffer_sizeP - payload_offset ) == 0 ) { free_mem_block(sdu_buffer_pP); return TRUE; } } #else if (otg_enabled==1) { LOG_D(OTG,"Discarding received packed\n"); free_mem_block(sdu_buffer_pP); return TRUE; } #endif new_sdu_p = get_free_mem_block(sdu_buffer_sizeP - payload_offset + sizeof (pdcp_data_ind_header_t)); if (new_sdu_p) { /* * Prepend PDCP indication header which is going to be removed at pdcp_fifo_flush_sdus() */ memset(new_sdu_p->data, 0, sizeof (pdcp_data_ind_header_t)); ((pdcp_data_ind_header_t *) new_sdu_p->data)->data_size = sdu_buffer_sizeP - payload_offset; // Here there is no virtualization possible // set ((pdcp_data_ind_header_t *) new_sdu_p->data)->inst for IP layer here if (enb_flagP == 0) { ((pdcp_data_ind_header_t *) new_sdu_p->data)->rb_id = rb_idP; #if defined(OAI_EMU) ((pdcp_data_ind_header_t *) new_sdu_p->data)->inst = ue_mod_idP + oai_emulation.info.nb_enb_local - oai_emulation.info.first_ue_local; #endif } else { ((pdcp_data_ind_header_t *) new_sdu_p->data)->rb_id = rb_idP + (ue_mod_idP * NB_RB_MAX); #if defined(OAI_EMU) ((pdcp_data_ind_header_t *) new_sdu_p->data)->inst = enb_mod_idP - oai_emulation.info.first_enb_local; #endif } // XXX Decompression would be done at this point /* * After checking incoming sequence number PDCP header * has to be stripped off so here we copy SDU buffer starting * from its second byte (skipping 0th and 1st octets, i.e. * PDCP header) */ memcpy(&new_sdu_p->data[sizeof (pdcp_data_ind_header_t)], \ &sdu_buffer_pP->data[payload_offset], \ sdu_buffer_sizeP - payload_offset); list_add_tail_eurecom (new_sdu_p, sdu_list_p); /* Print octets of incoming data in hexadecimal form */ LOG_D(PDCP, "Following content has been received from RLC (%d,%d)(PDCP header has already been removed):\n", sdu_buffer_sizeP - payload_offset + sizeof(pdcp_data_ind_header_t), sdu_buffer_sizeP - payload_offset); //util_print_hex_octets(PDCP, &new_sdu_p->data[sizeof (pdcp_data_ind_header_t)], sdu_buffer_sizeP - payload_offset); //util_flush_hex_octets(PDCP, &new_sdu_p->data[sizeof (pdcp_data_ind_header_t)], sdu_buffer_sizeP - payload_offset); /* * Update PDCP statistics * XXX Following two actions are identical, is there a merge error? */ /*if (enb_flagP == 1) { Pdcp_stats_rx[module_id][(rb_idP & RAB_OFFSET2) >> RAB_SHIFT2][(rb_idP & RAB_OFFSET) - DTCH]++; Pdcp_stats_rx_bytes[module_id][(rb_idP & RAB_OFFSET2) >> RAB_SHIFT2][(rb_idP & RAB_OFFSET) - DTCH] += sdu_buffer_sizeP; } else { Pdcp_stats_rx[module_id][(rb_idP & RAB_OFFSET2) >> RAB_SHIFT2][(rb_idP & RAB_OFFSET) - DTCH]++; Pdcp_stats_rx_bytes[module_id][(rb_idP & RAB_OFFSET2) >> RAB_SHIFT2][(rb_idP & RAB_OFFSET) - DTCH] += sdu_buffer_sizeP; }*/ } #if defined(STOP_ON_IP_TRAFFIC_OVERLOAD) else { AssertFatal(0, "[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u] PDCP_DATA_IND SDU DROPPED, OUT OF MEMORY \n", frameP, (enb_flagP) ? "eNB" : "UE", enb_mod_idP, ue_mod_idP, rb_idP); } #endif free_mem_block(sdu_buffer_pP); return TRUE; } //----------------------------------------------------------------------------- void pdcp_run (frame_t frameP, eNB_flag_t eNB_flag, module_id_t ue_mod_idP, module_id_t enb_mod_idP) { //----------------------------------------------------------------------------- #if defined(ENABLE_ITTI) MessageDef *msg_p; const char *msg_name; instance_t instance; int result; #endif vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_RUN, VCD_FUNCTION_IN); #if defined(ENABLE_ITTI) do { // Checks if a message has been sent to PDCP sub-task itti_poll_msg (eNB_flag ? TASK_PDCP_ENB : TASK_PDCP_UE, &msg_p); if (msg_p != NULL) { msg_name = ITTI_MSG_NAME (msg_p); instance = ITTI_MSG_INSTANCE (msg_p); switch (ITTI_MSG_ID(msg_p)) { case RRC_DCCH_DATA_REQ: LOG_I(PDCP, "Received %s from %s: instance %d, frame %d, eNB_flag %d, rb_id %d, muiP %d, confirmP %d, mode %d\n", msg_name, ITTI_MSG_ORIGIN_NAME(msg_p), instance, RRC_DCCH_DATA_REQ (msg_p).frame, RRC_DCCH_DATA_REQ (msg_p).enb_flag, 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).mode); result = pdcp_data_req (RRC_DCCH_DATA_REQ (msg_p).eNB_index, RRC_DCCH_DATA_REQ (msg_p).ue_index, RRC_DCCH_DATA_REQ (msg_p).frame, RRC_DCCH_DATA_REQ (msg_p).enb_flag, 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); AssertFatal (result == TRUE, "PDCP data request failed!\n"); // Message buffer has been processed, free it now. 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", msg_name); break; } result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), msg_p); AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result); } } while(msg_p != NULL); # if 0 { MessageDef *msg_resp_p; msg_resp_p = itti_alloc_new_message(TASK_PDCP_ENB, MESSAGE_TEST); itti_send_msg_to_task(TASK_RRC_ENB, 1, msg_resp_p); } { MessageDef *msg_resp_p; msg_resp_p = itti_alloc_new_message(TASK_PDCP_ENB, MESSAGE_TEST); itti_send_msg_to_task(TASK_ENB_APP, 2, msg_resp_p); } { MessageDef *msg_resp_p; msg_resp_p = itti_alloc_new_message(TASK_PDCP_ENB, MESSAGE_TEST); itti_send_msg_to_task(TASK_MAC_ENB, 3, msg_resp_p); } # endif #endif pdcp_fifo_read_input_sdus_from_otg(frameP, eNB_flag, ue_mod_idP, enb_mod_idP); // IP/NAS -> PDCP traffic : TX, read the pkt from the upper layer buffer pdcp_fifo_read_input_sdus(frameP, eNB_flag, ue_mod_idP, enb_mod_idP); // PDCP -> NAS/IP traffic: RX pdcp_fifo_flush_sdus(frameP, eNB_flag, enb_mod_idP, ue_mod_idP); vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_RUN, VCD_FUNCTION_OUT); } BOOL rrc_pdcp_config_asn1_req (module_id_t enb_mod_idP, module_id_t ue_mod_idP, frame_t frameP, eNB_flag_t enb_flagP, SRB_ToAddModList_t *srb2add_list_pP, DRB_ToAddModList_t *drb2add_list_pP, DRB_ToReleaseList_t *drb2release_list_pP, u8 security_modeP, u8 *kRRCenc_pP, u8 *kRRCint_pP, u8 *kUPenc_pP #ifdef Rel10 ,PMCH_InfoList_r9_t* pmch_InfoList_r9_pP #endif ) { long int rb_id = 0; long int lc_id = 0; long int srb_id = 0; long int mch_id = 0; rlc_mode_t rlc_type = RLC_NONE; DRB_Identity_t drb_id = 0; DRB_Identity_t *pdrb_id_p = NULL; u8 drb_sn = 0; u8 srb_sn = 5; // fixed sn for SRBs u8 drb_report = 0; long int cnt = 0; u16 header_compression_profile = 0; u32 action = ACTION_ADD; SRB_ToAddMod_t *srb_toaddmod_p = NULL; DRB_ToAddMod_t *drb_toaddmod_p = NULL; pdcp_t *pdcp_p = NULL; module_id_t module_id = -1; #ifdef Rel10 int i,j; MBMS_SessionInfoList_r9_t *mbms_SessionInfoList_r9_p = NULL; MBMS_SessionInfo_r9_t *MBMS_SessionInfo_p = NULL; #endif if (enb_flagP == 0) { LOG_D(PDCP, "[UE %d] CONFIG REQ ASN1 for eNB %d\n", ue_mod_idP, enb_mod_idP); } else { LOG_D(PDCP, "[eNB %d] CONFIG REQ ASN1 for UE %d\n", enb_mod_idP, ue_mod_idP); } // srb2add_list does not define pdcp config, we use rlc info to setup the pdcp dcch0 and dcch1 channels if (srb2add_list_pP != NULL) { for (cnt=0;cntlist.count;cnt++) { srb_id = srb2add_list_pP->list.array[cnt]->srb_Identity; srb_toaddmod_p = srb2add_list_pP->list.array[cnt]; rlc_type = RLC_MODE_AM; rb_id = srb_id; lc_id = srb_id; if (enb_flagP == 0) { pdcp_p = &pdcp_array_ue[ue_mod_idP][srb_id]; } else { pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][srb_id]; } if (pdcp_p->instanciated_instance == 1) { action = ACTION_MODIFY; } else { action = ACTION_ADD; } if (srb_toaddmod_p->rlc_Config) { switch (srb_toaddmod_p->rlc_Config->present) { case SRB_ToAddMod__rlc_Config_PR_NOTHING: break; case SRB_ToAddMod__rlc_Config_PR_explicitValue: switch (srb_toaddmod_p->rlc_Config->choice.explicitValue.present) { case RLC_Config_PR_NOTHING: break; default: pdcp_config_req_asn1 (pdcp_p, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, // not really required rlc_type, action, lc_id, mch_id, rb_id, srb_sn, 0, // drb_report 0, // header compression security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP); break; } break; case SRB_ToAddMod__rlc_Config_PR_defaultValue: // already the default values break; default: DevParam(srb_toaddmod_p->rlc_Config->present, ue_mod_idP, enb_mod_idP); break; } } } } // reset the action if (drb2add_list_pP != NULL) { for (cnt=0;cntlist.count;cnt++) { drb_toaddmod_p = drb2add_list_pP->list.array[cnt]; drb_id = drb_toaddmod_p->drb_Identity; if (drb_toaddmod_p->logicalChannelIdentity != null) { lc_id = *drb_toaddmod_p->logicalChannelIdentity; } else { lc_id = -1; } rb_id = lc_id; DevCheck4(rb_id < NB_RB_MAX, rb_id, NB_RB_MAX, ue_mod_idP, enb_mod_idP); if (enb_flagP == 0) { pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_id]; } else { pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_id]; } if (pdcp_p->instanciated_instance == 1) action = ACTION_MODIFY; else action = ACTION_ADD; if (drb_toaddmod_p->pdcp_Config){ if (drb_toaddmod_p->pdcp_Config->discardTimer) { // set the value of the timer } if (drb_toaddmod_p->pdcp_Config->rlc_AM) { drb_report = drb_toaddmod_p->pdcp_Config->rlc_AM->statusReportRequired; rlc_type =RLC_MODE_AM; } if (drb_toaddmod_p->pdcp_Config->rlc_UM){ drb_sn = drb_toaddmod_p->pdcp_Config->rlc_UM->pdcp_SN_Size; rlc_type =RLC_MODE_UM; } switch (drb_toaddmod_p->pdcp_Config->headerCompression.present) { case PDCP_Config__headerCompression_PR_NOTHING: case PDCP_Config__headerCompression_PR_notUsed: header_compression_profile=0x0; break; case PDCP_Config__headerCompression_PR_rohc: // parse the struc and get the rohc profile if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0001) header_compression_profile=0x0001; else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0002) header_compression_profile=0x0002; else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0003) header_compression_profile=0x0003; else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0004) header_compression_profile=0x0004; else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0006) header_compression_profile=0x0006; else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0101) header_compression_profile=0x0101; else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0102) header_compression_profile=0x0102; else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0103) header_compression_profile=0x0103; else if(drb_toaddmod_p->pdcp_Config->headerCompression.choice.rohc.profiles.profile0x0104) header_compression_profile=0x0104; else { header_compression_profile=0x0; LOG_W(PDCP,"unknown header compresion profile\n"); } // set the applicable profile break; default: LOG_W(PDCP,"[MOD_id %d][RB %d] unknown drb_toaddmod->PDCP_Config->headerCompression->present \n", module_id, drb_id); break; } pdcp_config_req_asn1 (pdcp_p, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, // not really required rlc_type, action, lc_id, mch_id, rb_id, drb_sn, drb_report, header_compression_profile, security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP); } } } if (drb2release_list_pP != NULL) { for (cnt=0;cntlist.count;cnt++) { pdrb_id_p = drb2release_list_pP->list.array[cnt]; rb_id = *pdrb_id_p; if (enb_flagP == 0) { pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_id]; } else { pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_id]; } action = ACTION_REMOVE; pdcp_config_req_asn1 (pdcp_p, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, // not really required rlc_type, action, lc_id, mch_id, rb_id, 0, 0, 0, security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP); } } #ifdef Rel10 if (pmch_InfoList_r9 != NULL) { for (i=0;ilist.count;i++) { mbms_SessionInfoList_r9 = &(pmch_InfoList_r9->list.array[i]->mbms_SessionInfoList_r9); for (j=0;jlist.count;j++) { MBMS_SessionInfo = mbms_SessionInfoList_r9->list.array[j]; //lc_id = MBMS_SessionInfo->logicalChannelIdentity_r9; // lcid lc_id = MBMS_SessionInfo->sessionId_r9->buf[0]; mch_id = MBMS_SessionInfo->tmgi_r9.serviceId_r9.buf[2]; //serviceId is 3-octet string // can set the mch_id = i if (eNB_flag) rb_id = (mch_id * maxSessionPerPMCH ) + lc_id; else rb_id = (mch_id * maxSessionPerPMCH ) + lc_id + (maxDRB + 3); if (pdcp_mbms_array[module_id][rb_id].instanciated_instance == module_id + 1) action = ACTION_MBMS_MODIFY; else action = ACTION_MBMS_ADD; rlc_type = RLC_MODE_UM; pdcp_config_req_asn1 (NULL, enb_mod_idP, ue_mod_idP, frameP, eNB_flag, rlc_type, action, lc_id, mch_id, rb_id, 0, // set to deafult 0, 0, security_mode, kRRCenc, kRRCint, kUPenc); } } } #endif return 1; } BOOL pdcp_config_req_asn1 (pdcp_t *pdcp_pP, module_id_t enb_mod_idP, module_id_t ue_mod_idP, frame_t frameP, eNB_flag_t enb_flagP, rlc_mode_t rlc_modeP, u32 actionP, u16 lc_idP, u16 mch_idP, rb_id_t rb_idP, u8 rb_snP, u8 rb_reportP, u16 header_compression_profileP, u8 security_modeP, u8 *kRRCenc_pP, u8 *kRRCint_pP, u8 *kUPenc_pP) { switch (actionP) { case ACTION_ADD: DevAssert(pdcp_pP != NULL); pdcp_pP->instanciated_instance = 1; pdcp_pP->is_ue = (enb_flagP == 0) ? 1 : 0; pdcp_pP->lcid = lc_idP; pdcp_pP->header_compression_profile = header_compression_profileP; pdcp_pP->status_report = rb_reportP; if (rb_snP == PDCP_Config__rlc_UM__pdcp_SN_Size_len7bits) { pdcp_pP->seq_num_size = 7; } else if (rb_snP == PDCP_Config__rlc_UM__pdcp_SN_Size_len12bits) { pdcp_pP->seq_num_size=12; } else { pdcp_pP->seq_num_size=5; } pdcp_pP->rlc_mode = rlc_modeP; pdcp_pP->next_pdcp_tx_sn = 0; pdcp_pP->next_pdcp_rx_sn = 0; pdcp_pP->tx_hfn = 0; pdcp_pP->rx_hfn = 0; pdcp_pP->last_submitted_pdcp_rx_sn = 4095; pdcp_pP->first_missing_pdu = -1; if (enb_flagP == 0) { LOG_I(PDCP, "[UE %d] Config request : Action ADD for eNB %d: Frame %d LCID %d (rb id %d) " "configured with SN size %d bits and RLC %s\n", ue_mod_idP, enb_mod_idP, frameP, lc_idP, rb_idP, pdcp_pP->seq_num_size, (rlc_modeP == 1) ? "AM" : (rlc_modeP == 2) ? "TM" : "UM"); } else { LOG_I(PDCP, "[eNB %d] Config request : Action ADD for UE %d: Frame %d LCID %d (rb id %d) " "configured with SN size %d bits and RLC %s\n", enb_mod_idP, ue_mod_idP, frameP, lc_idP, rb_idP, pdcp_pP->seq_num_size, (rlc_modeP == 1) ? "AM" : (rlc_modeP == 2) ? "TM" : "UM"); } /* Setup security */ if (security_modeP != 0xff) { pdcp_config_set_security(pdcp_pP, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, rb_idP, lc_idP, security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP); } LOG_D(PDCP, "[FRAME %5u][%s][PDCP][MOD %u/%u][RB %u]\n", frameP, (enb_flagP == 0) ? "UE" : "eNB", enb_mod_idP, ue_mod_idP, rb_idP); break; case ACTION_MODIFY: DevAssert(pdcp_pP != NULL); pdcp_pP->header_compression_profile=header_compression_profileP; pdcp_pP->status_report = rb_reportP; pdcp_pP->rlc_mode = rlc_modeP; /* Setup security */ if (security_modeP != 0xff) { pdcp_config_set_security(pdcp_pP, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, rb_idP, lc_idP, security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP); } if (rb_snP == PDCP_Config__rlc_UM__pdcp_SN_Size_len7bits) { pdcp_pP->seq_num_size = 7; } else if (rb_snP == PDCP_Config__rlc_UM__pdcp_SN_Size_len12bits) { pdcp_pP->seq_num_size = 12; } else { pdcp_pP->seq_num_size=5; } if (enb_flagP == 0) { LOG_I(PDCP,"[UE %d] Config request : Action MODIFY for eNB %d: Frame %d LCID %d " "RB id %d configured with SN size %d and RLC %s \n", ue_mod_idP, enb_mod_idP, frameP, lc_idP, rb_idP, rb_snP, (rlc_modeP == 1) ? "AM" : (rlc_modeP == 2) ? "TM" : "UM"); } else { LOG_I(PDCP,"[eNB %d] Config request : Action MODIFY for UE %d: Frame %d LCID %d " "RB id %d configured with SN size %d and RLC %s \n", enb_mod_idP, ue_mod_idP, frameP, lc_idP, rb_idP, rb_snP, (rlc_modeP == 1) ? "AM" : (rlc_modeP == 2) ? "TM" : "UM"); } break; case ACTION_REMOVE: DevAssert(pdcp_pP != NULL); pdcp_pP->instanciated_instance = 0; pdcp_pP->lcid = 0; pdcp_pP->header_compression_profile = 0x0; pdcp_pP->cipheringAlgorithm = 0xff; pdcp_pP->integrityProtAlgorithm = 0xff; pdcp_pP->status_report = 0; pdcp_pP->rlc_mode = RLC_NONE; pdcp_pP->next_pdcp_tx_sn = 0; pdcp_pP->next_pdcp_rx_sn = 0; pdcp_pP->tx_hfn = 0; pdcp_pP->rx_hfn = 0; pdcp_pP->last_submitted_pdcp_rx_sn = 4095; pdcp_pP->seq_num_size = 0; pdcp_pP->first_missing_pdu = -1; pdcp_pP->security_activated = 0; if (enb_flagP == 0) { LOG_I(PDCP, "[UE %d] Config request : ACTION_REMOVE for eNB %d: Frame %d LCID %d RBID %d configured\n", ue_mod_idP, enb_mod_idP, frameP, lc_idP, rb_idP); } else { LOG_I(PDCP, "[eNB %d] Config request : ACTION_REMOVE for UE %d: Frame %d LCID %d RBID %d configured\n", enb_mod_idP, ue_mod_idP, frameP, lc_idP, rb_idP); } /* Security keys */ if (pdcp_pP->kUPenc != NULL) { free(pdcp_pP->kUPenc); } if (pdcp_pP->kRRCint != NULL) { free(pdcp_pP->kRRCint); } if (pdcp_pP->kRRCenc != NULL) { free(pdcp_pP->kRRCenc); } break; case ACTION_MBMS_ADD: case ACTION_MBMS_MODIFY: if (enb_flagP == 0) { LOG_I(PDCP,"[UE %d] Config request for eNB %d: %s: Frame %d service_id/mch index %d, session_id/lcid %d, rbid %d configured\n", ue_mod_idP, enb_mod_idP, actionP == ACTION_MBMS_ADD ? "ACTION_MBMS_ADD" : "ACTION_MBMS_MODIFY", frameP, mch_idP, lc_idP, rb_idP); } else { LOG_I(PDCP,"[eNB %d] Config request for UE %d: %s: Frame %d service_id/mch index %d, session_id/lcid %d, rbid %d configured\n", enb_mod_idP, ue_mod_idP, actionP == ACTION_MBMS_ADD ? "ACTION_MBMS_ADD" : "ACTION_MBMS_MODIFY", frameP, mch_idP, lc_idP, rb_idP); } if (enb_flagP == 1) { pdcp_mbms_array_eNB[enb_mod_idP][rb_idP].instanciated_instance = 1 ; pdcp_mbms_array_eNB[enb_mod_idP][rb_idP].service_id = mch_idP; pdcp_mbms_array_eNB[enb_mod_idP][rb_idP].session_id = lc_idP; pdcp_mbms_array_eNB[enb_mod_idP][rb_idP].rb_id = rb_idP; } else { pdcp_mbms_array_eNB[ue_mod_idP][rb_idP].instanciated_instance = 1 ; pdcp_mbms_array_eNB[ue_mod_idP][rb_idP].service_id = mch_idP; pdcp_mbms_array_eNB[ue_mod_idP][rb_idP].session_id = lc_idP; pdcp_mbms_array_eNB[ue_mod_idP][rb_idP].rb_id = rb_idP; } break; case ACTION_SET_SECURITY_MODE: pdcp_config_set_security(pdcp_pP, enb_mod_idP, ue_mod_idP, frameP, enb_flagP, rb_idP, lc_idP, security_modeP, kRRCenc_pP, kRRCint_pP, kUPenc_pP); break; default: DevParam(actionP, enb_mod_idP, ue_mod_idP); break; } return 0; } void pdcp_config_set_security(pdcp_t *pdcp_pP, module_id_t enb_mod_idP, module_id_t ue_mod_idP, frame_t frameP, eNB_flag_t eNB_flag, rb_id_t rb_idP, u16 lc_idP, u8 security_modeP, u8 *kRRCenc, u8 *kRRCint, u8 *kUPenc) { DevAssert(pdcp_pP != NULL); if ((security_modeP >= 0) && (security_modeP <= 0x77)) { pdcp_pP->cipheringAlgorithm = security_modeP & 0x0f; pdcp_pP->integrityProtAlgorithm = (security_modeP>>4) & 0xf; if (eNB_flag == 0) { LOG_D(PDCP,"[UE %d][RB %02d] Set security mode : ACTION_SET_SECURITY_MODE: " "Frame %d cipheringAlgorithm %d integrityProtAlgorithm %d\n", ue_mod_idP, rb_idP, frameP, pdcp_pP->cipheringAlgorithm, pdcp_pP->integrityProtAlgorithm); } else { LOG_D(PDCP,"[eNB %d][UE %d][RB %02d] Set security mode : ACTION_SET_SECURITY_MODE: " "Frame %d cipheringAlgorithm %d integrityProtAlgorithm %d\n", enb_mod_idP, ue_mod_idP, rb_idP, frameP, pdcp_pP->cipheringAlgorithm, pdcp_pP->integrityProtAlgorithm); } pdcp_pP->kRRCenc = kRRCenc; pdcp_pP->kRRCint = kRRCint; pdcp_pP->kUPenc = kUPenc; /* Activate security */ pdcp_pP->security_activated = 1; } else { LOG_E(PDCP,"[%s %d] bad security mode %d", security_modeP); } } void rrc_pdcp_config_req (module_id_t enb_mod_idP, module_id_t ue_mod_idP, frame_t frameP, eNB_flag_t enb_flagP, u32 actionP, rb_id_t rb_idP, u8 security_modeP) { pdcp_t *pdcp_p = NULL; if (enb_mod_idP == 0) { pdcp_p = &pdcp_array_ue[ue_mod_idP][rb_idP]; } else { pdcp_p = &pdcp_array_eNB[enb_mod_idP][ue_mod_idP][rb_idP]; } /* * Initialize sequence number state variables of relevant PDCP entity */ switch (actionP) { case ACTION_ADD: pdcp_p->instanciated_instance = 1; pdcp_p->next_pdcp_tx_sn = 0; pdcp_p->next_pdcp_rx_sn = 0; pdcp_p->tx_hfn = 0; pdcp_p->rx_hfn = 0; /* SN of the last PDCP SDU delivered to upper layers */ pdcp_p->last_submitted_pdcp_rx_sn = 4095; if (rb_idP < DTCH) { // SRB pdcp_p->seq_num_size = 5; } else { // DRB pdcp_p->seq_num_size = 12; } pdcp_p->first_missing_pdu = -1; LOG_D(PDCP,"[%s %d] Config request : Action ADD: Frame %d radio bearer id %d configured\n", (enb_flagP) ? "eNB" : "UE", (enb_flagP) ? enb_mod_idP : ue_mod_idP, frameP, rb_idP); break; case ACTION_MODIFY: break; case ACTION_REMOVE: pdcp_p->instanciated_instance = 0; pdcp_p->next_pdcp_tx_sn = 0; pdcp_p->next_pdcp_rx_sn = 0; pdcp_p->tx_hfn = 0; pdcp_p->rx_hfn = 0; pdcp_p->last_submitted_pdcp_rx_sn = 4095; pdcp_p->seq_num_size = 0; pdcp_p->first_missing_pdu = -1; pdcp_p->security_activated = 0; LOG_D(PDCP,"[%s %d] Config request : ACTION_REMOVE: Frame %d radio bearer id %d configured\n", (enb_flagP) ? "eNB" : "UE", (enb_flagP) ? enb_mod_idP : ue_mod_idP, frameP, rb_idP); break; case ACTION_SET_SECURITY_MODE: if ((security_modeP >= 0) && (security_modeP <= 0x77)) { pdcp_p->cipheringAlgorithm= security_modeP & 0x0f; pdcp_p->integrityProtAlgorithm = (security_modeP>>4) & 0xf; LOG_D(PDCP,"[%s %d]Set security mode : ACTION_SET_SECURITY_MODE: Frame %d cipheringAlgorithm %d integrityProtAlgorithm %d\n", (enb_flagP) ? "eNB" : "UE", (enb_flagP) ? enb_mod_idP : ue_mod_idP, frameP, pdcp_p->cipheringAlgorithm, pdcp_p->integrityProtAlgorithm ); } else { LOG_D(PDCP,"[%s %d] bad security mode %d", security_modeP); } break; default: DevParam(actionP, ue_mod_idP, enb_mod_idP); break; } } // TODO PDCP module initialization code might be removed int pdcp_module_init (void) { //----------------------------------------------------------------------------- #ifdef NAS_FIFO int ret; ret=rtf_create(PDCP2NAS_FIFO,32768); if (ret < 0) { LOG_E(PDCP, "Cannot create PDCP2NAS fifo %d (ERROR %d)\n", PDCP2NAS_FIFO, ret); return -1; } else { LOG_D(PDCP, "Created PDCP2NAS fifo %d\n", PDCP2NAS_FIFO); rtf_reset(PDCP2NAS_FIFO); } ret=rtf_create(NAS2PDCP_FIFO,32768); if (ret < 0) { LOG_E(PDCP, "Cannot create NAS2PDCP fifo %d (ERROR %d)\n", NAS2PDCP_FIFO, ret); return -1; } else { LOG_D(PDCP, "Created NAS2PDCP fifo %d\n", NAS2PDCP_FIFO); rtf_reset(NAS2PDCP_FIFO); } pdcp_2_nas_irq = 0; pdcp_input_sdu_remaining_size_to_read=0; pdcp_input_sdu_size_read=0; #endif return 0; } //----------------------------------------------------------------------------- void pdcp_module_cleanup (void) //----------------------------------------------------------------------------- { #ifdef NAS_FIFO rtf_destroy(NAS2PDCP_FIFO); rtf_destroy(PDCP2NAS_FIFO); #endif } //----------------------------------------------------------------------------- void pdcp_layer_init(void) { //----------------------------------------------------------------------------- module_id_t instance, instance2; rb_id_t rb_id; int j; /* * Initialize SDU list */ list_init(&pdcp_sdu_list, NULL); for (instance = 0; instance < NUMBER_OF_UE_MAX; instance++) { for (rb_id = 0; rb_id < NB_RB_MAX; rb_id++) { memset(&pdcp_array_ue[instance][rb_id], 0, sizeof(pdcp_t)); } for (j = 0; j < 16*29; j++) { memset(&pdcp_mbms_array_ue[instance][j], 0, sizeof(pdcp_mbms_t)); } } for (instance = 0; instance < NUMBER_OF_eNB_MAX; instance++) { for (instance2 = 0; instance2 < NUMBER_OF_UE_MAX; instance2++) { for (rb_id = 0; rb_id < NB_RB_MAX; rb_id++) { memset(&pdcp_array_eNB[instance][instance2][rb_id], 0, sizeof(pdcp_t)); } } for (j = 0; j < 16*29; j++) { memset(&pdcp_mbms_array_eNB[instance][j], 0, sizeof(pdcp_mbms_t)); } } LOG_I(PDCP, "PDCP layer has been initialized\n"); pdcp_output_sdu_bytes_to_write=0; pdcp_output_header_bytes_to_write=0; pdcp_input_sdu_remaining_size_to_read=0; memset(Pdcp_stats_tx, 0, sizeof(Pdcp_stats_tx)); memset(Pdcp_stats_tx_bytes, 0, sizeof(Pdcp_stats_tx_bytes)); memset(Pdcp_stats_tx_bytes_last, 0, sizeof(Pdcp_stats_tx_bytes_last)); memset(Pdcp_stats_tx_rate, 0, sizeof(Pdcp_stats_tx_rate)); memset(Pdcp_stats_rx, 0, sizeof(Pdcp_stats_rx)); memset(Pdcp_stats_rx_bytes, 0, sizeof(Pdcp_stats_rx_bytes)); memset(Pdcp_stats_rx_bytes_last, 0, sizeof(Pdcp_stats_rx_bytes_last)); memset(Pdcp_stats_rx_rate, 0, sizeof(Pdcp_stats_rx_rate)); } //----------------------------------------------------------------------------- void pdcp_layer_cleanup (void) //----------------------------------------------------------------------------- { list_free (&pdcp_sdu_list); } #ifdef NAS_FIFO EXPORT_SYMBOL(pdcp_2_nas_irq); #endif //NAS_FIFO