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openairinterface5g/openair2/LAYER2/PDCP_v10.1.0/pdcp.h
T
Cedric Roux e3782b5ca2 bugfix: fix PDCP sequence management (plus some cleanup) 
With the introduction of X2AP into develop, the UEs now have to regularly
send measurement reports.

In the logs of the eNB, we see:

[OSA]   Mismatch found in integrity for algorithm 2,
        got e0.a0.c2.66, expecting a5.9c.cb.57
[PDCP]   [OSA][RB 1] eNB failed to validate MAC-I of incoming PDU

This is a bug in the PDCP layer that uses wrong parameters to compute the
integrity.

This commit fixes this bug.

The function pdcp_is_rx_seq_number_valid was removed. Its processing
has been directly integrated into the function pdcp_data_ind.

The function pdcp_mark_current_pdu_as_received is not called anymore.
Its processing was not used later on, so as of today, not calling it does
not introduce any functional change.

The function pdcp_validate_security takes now as parameters both
SN and HFN. Same for the function pdcp_get_next_count_rx.

Useless constants PDCP_SN_5BIT, PDCP_SN_7BIT and PDCP_SN_12BIT have been
removed.

The compilation option ENABLE_SECURITY has been removed. It's now always
on. (This may impact some use cases.)

The PDCP for DRB using RLC AM is not correct. It was not correct before
this commit (apart from the integrity bug). We should deal with a list
of PDUs and transmit packets to upper layers as detailed in the specs.
Today we transmit the PDU as soon as we get it. We don't care about
duplicates, in-order delivery, timeouts.

Also, we don't deal with "PDCP re-establishment". Not sure how that impacts
the software.

And, last but not least, there is still no ROHC.
2019-02-27 12:33:04 +01:00

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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file LAYER2/PDCP_v10.1.0/pdcp.h
* \brief pdcp interface with RLC, RRC
* \author Lionel GAUTHIER and Navid Nikaein
* \date 2009-2012
* \version 1.0
*/
/** @defgroup _pdcp PDCP
* @ingroup _oai2
* @{
*/
#ifndef __PDCP_H__
# define __PDCP_H__
//-----------------------------------------------------------------------------
#ifndef NON_ACCESS_STRATUM
#include "UTIL/MEM/mem_block.h"
#include "UTIL/LISTS/list.h"
#endif //NON_ACCESS_STRATUM
//-----------------------------------------------------------------------------
#include "RRC/LTE/rrc_defs.h"
#include "COMMON/platform_constants.h"
#include "COMMON/platform_types.h"
#include "LTE_DRB-ToAddMod.h"
#include "LTE_DRB-ToAddModList.h"
#include "LTE_SRB-ToAddMod.h"
#include "LTE_SRB-ToAddModList.h"
#if (LTE_RRC_VERSION >= MAKE_VERSION(9, 0, 0))
#include "LTE_MBMS-SessionInfoList-r9.h"
#include "LTE_PMCH-InfoList-r9.h"
#endif
extern pthread_t pdcp_thread;
extern pthread_attr_t pdcp_thread_attr;
extern pthread_mutex_t pdcp_mutex;
extern pthread_cond_t pdcp_cond;
extern int pdcp_instance_cnt;
#define PROTOCOL_PDCP_CTXT_FMT PROTOCOL_CTXT_FMT"[%s %02u] "
#define PROTOCOL_PDCP_CTXT_ARGS(CTXT_Pp, pDCP_Pp) PROTOCOL_CTXT_ARGS(CTXT_Pp),\
(pDCP_Pp->is_srb) ? "SRB" : "DRB",\
pDCP_Pp->rb_id
int init_pdcp_thread(void);
void cleanup_pdcp_thread(void);
uint32_t Pdcp_stats_tx_window_ms[MAX_NUM_CCs][MAX_MOBILES_PER_ENB];
uint32_t Pdcp_stats_tx_bytes[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_bytes_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_bytes_tmp_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_tmp_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_sn[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_throughput_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_aiat[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_aiat_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_aiat_tmp_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_tx_iat[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_window_ms[MAX_NUM_CCs][MAX_MOBILES_PER_ENB];
uint32_t Pdcp_stats_rx[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_tmp_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_bytes[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_bytes_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_bytes_tmp_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_sn[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_goodput_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_aiat[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_aiat_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_aiat_tmp_w[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_iat[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
uint32_t Pdcp_stats_rx_outoforder[MAX_NUM_CCs][MAX_MOBILES_PER_ENB][NB_RB_MAX];
void pdcp_update_perioidical_stats(const protocol_ctxt_t* const ctxt_pP);
/*Packet Probing for agent PDCP*/
//uint64_t *pdcp_packet_counter;
//uint64_t *pdcp_size_packet;
typedef struct pdcp_enb_s {
// used for eNB stats generation
uint16_t uid[MAX_MOBILES_PER_ENB];
rnti_t rnti[MAX_MOBILES_PER_ENB];
uint16_t num_ues;
uint64_t sfn;
frame_t frame;
sub_frame_t subframe;
} pdcp_enb_t;
pdcp_enb_t pdcp_enb[MAX_NUM_CCs];
typedef struct pdcp_stats_s {
time_stats_t pdcp_run;
time_stats_t data_req;
time_stats_t data_ind;
time_stats_t apply_security; //
time_stats_t validate_security;
time_stats_t pdcp_ip;
time_stats_t ip_pdcp; // separte thread
} pdcp_stats_t; // common to eNB and UE
typedef struct pdcp_s {
//boolean_t instanciated_instance;
uint16_t header_compression_profile;
/* SR: added this flag to distinguish UE/eNB instance as pdcp_run for virtual
* mode can receive data on NETLINK for eNB while eNB_flag = 0 and for UE when eNB_flag = 1
*/
boolean_t is_ue;
boolean_t is_srb;
/* Configured security algorithms */
uint8_t cipheringAlgorithm;
uint8_t integrityProtAlgorithm;
/* User-Plane encryption key
* Control-Plane RRC encryption key
* Control-Plane RRC integrity key
* These keys are configured by RRC layer
*/
uint8_t *kUPenc;
uint8_t *kRRCint;
uint8_t *kRRCenc;
uint8_t security_activated;
rlc_mode_t rlc_mode;
uint8_t status_report;
uint8_t seq_num_size;
logical_chan_id_t lcid;
rb_id_t rb_id;
/*
* Sequence number state variables
*
* TX and RX window
*/
pdcp_sn_t next_pdcp_tx_sn;
pdcp_sn_t next_pdcp_rx_sn;
pdcp_sn_t maximum_pdcp_rx_sn;
/*
* TX and RX Hyper Frame Numbers
*/
pdcp_hfn_t tx_hfn;
pdcp_hfn_t rx_hfn;
/*
* SN of the last PDCP SDU delivered to upper layers
*/
pdcp_sn_t last_submitted_pdcp_rx_sn;
/*
* Following array is used as a bitmap holding missing sequence
* numbers to generate a PDCP Control PDU for PDCP status
* report (see 6.2.6)
*/
uint8_t missing_pdu_bitmap[512];
/*
* This is intentionally signed since we need a 'NULL' value
* which is not also a valid sequence number
*/
short int first_missing_pdu;
/*
* decipher using a different rx_hfn
*/
} pdcp_t;
#if (LTE_RRC_VERSION >= MAKE_VERSION(10, 0, 0))
typedef struct pdcp_mbms_s {
boolean_t instanciated_instance;
rb_id_t rb_id;
} pdcp_mbms_t;
#endif
/*
* Following symbolic constant alters the behaviour of PDCP
* and makes it linked to PDCP test code under targets/TEST/PDCP/
*
* For the version at SVN repository this should be UNDEFINED!
* XXX And later this should be configured through the Makefile
* under targets/TEST/PDCP/
*/
/*! \fn boolean_t pdcp_data_req(const protocol_ctxt_t* const , srb_flag_t , rb_id_t , mui_t , confirm_t ,sdu_size_t , unsigned char* , pdcp_transmission_mode_t )
* \brief This functions handles data transfer requests coming either from RRC or from IP
* \param[in] ctxt_pP Running context.
* \param[in] rab_id Radio Bearer ID
* \param[in] muiP
* \param[in] confirmP
* \param[in] sdu_buffer_size Size of incoming SDU in bytes
* \param[in] sdu_buffer Buffer carrying SDU
* \param[in] mode flag to indicate whether the userplane data belong to the control plane or data plane or transparent
* \return TRUE on success, FALSE otherwise
* \note None
* @ingroup _pdcp
*/
boolean_t pdcp_data_req(
protocol_ctxt_t* ctxt_pP,
const srb_flag_t srb_flagP,
const rb_id_t rb_id,
const mui_t muiP,
const confirm_t confirmP, \
const sdu_size_t sdu_buffer_size,
unsigned char* const sdu_buffer,
const pdcp_transmission_mode_t mode
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
,const uint32_t * const sourceL2Id
,const uint32_t * const destinationL2Id
#endif
);
/*! \fn boolean_t pdcp_data_ind(const protocol_ctxt_t* const, srb_flag_t, MBMS_flag_t, rb_id_t, sdu_size_t, mem_block_t*, boolean_t)
* \brief This functions handles data transfer indications coming from RLC
* \param[in] ctxt_pP Running context.
* \param[in] Shows if rb is SRB
* \param[in] Tells if MBMS traffic
* \param[in] rab_id Radio Bearer ID
* \param[in] sdu_buffer_size Size of incoming SDU in bytes
* \param[in] sdu_buffer Buffer carrying SDU
* \param[in] is_data_plane flag to indicate whether the userplane data belong to the control plane or data plane
* \return TRUE on success, FALSE otherwise
* \note None
* @ingroup _pdcp
*/
boolean_t pdcp_data_ind(
const protocol_ctxt_t* const ctxt_pP,
const srb_flag_t srb_flagP,
const MBMS_flag_t MBMS_flagP,
const rb_id_t rb_id,
const sdu_size_t sdu_buffer_size,
mem_block_t* const sdu_buffer);
/*! \fn void rrc_pdcp_config_req(const protocol_ctxt_t* const ,uint32_t,rb_id_t,uint8_t)
* \brief This functions initializes relevant PDCP entity
* \param[in] ctxt_pP Running context.
* \param[in] actionP flag for action: add, remove , modify
* \param[in] rb_idP Radio Bearer ID of relevant PDCP entity
* \param[in] security_modeP Radio Bearer ID of relevant PDCP entity
* \return none
* \note None
* @ingroup _pdcp
*/
void rrc_pdcp_config_req (
const protocol_ctxt_t* const ctxt_pP,
const srb_flag_t srb_flagP,
const uint32_t actionP,
const rb_id_t rb_idP,
const uint8_t security_modeP);
/*! \fn bool rrc_pdcp_config_asn1_req (const protocol_ctxt_t* const , SRB_ToAddModList_t* srb2add_list, DRB_ToAddModList_t* drb2add_list, DRB_ToReleaseList_t* drb2release_list)
* \brief Function for RRC to configure a Radio Bearer.
* \param[in] ctxt_pP Running context.
* \param[in] index index of UE or eNB depending on the eNB_flag
* \param[in] srb2add_list SRB configuration list to be created.
* \param[in] drb2add_list DRB configuration list to be created.
* \param[in] drb2release_list DRB configuration list to be released.
* \param[in] security_mode Security algorithm to apply for integrity/ciphering
* \param[in] kRRCenc RRC encryption key
* \param[in] kRRCint RRC integrity key
* \param[in] kUPenc User-Plane encryption key
* \param[in] defaultDRB Default DRB ID
* \return A status about the processing, OK or error code.
*/
boolean_t rrc_pdcp_config_asn1_req (
const protocol_ctxt_t* const ctxt_pP,
LTE_SRB_ToAddModList_t *const srb2add_list,
LTE_DRB_ToAddModList_t *const drb2add_list,
LTE_DRB_ToReleaseList_t *const drb2release_list,
const uint8_t security_modeP,
uint8_t *const kRRCenc,
uint8_t *const kRRCint,
uint8_t *const kUPenc
#if (LTE_RRC_VERSION >= MAKE_VERSION(9, 0, 0))
,LTE_PMCH_InfoList_r9_t *pmch_InfoList_r9
#endif
,rb_id_t *const defaultDRB
);
/*! \fn boolean_t pdcp_config_req_asn1 (const protocol_ctxt_t* const ctxt_pP, srb_flag_t srb_flagP, uint32_t action, rb_id_t rb_id, uint8_t rb_sn, uint8_t rb_report, uint16_t header_compression_profile, uint8_t security_mode)
* \brief Function for RRC to configure a Radio Bearer.
* \param[in] ctxt_pP Running context.
* \param[in] pdcp_pP Pointer on PDCP structure.
* \param[in] enb_mod_idP Virtualized enb module identifier, Not used if eNB_flagP = 0.
* \param[in] ue_mod_idP Virtualized ue module identifier.
* \param[in] frame Frame index.
* \param[in] eNB_flag Flag to indicate eNB (1) or UE (0)
* \param[in] srb_flagP Flag to indicate SRB (1) or DRB (0)
* \param[in] action add, remove, modify a RB
* \param[in] rb_id radio bearer id
* \param[in] rb_sn sequence number for this radio bearer
* \param[in] drb_report set a pdcp report for this drb
* \param[in] header_compression set the rohc profile
* \param[in] security_mode set the integrity and ciphering algs
* \param[in] kRRCenc RRC encryption key
* \param[in] kRRCint RRC integrity key
* \param[in] kUPenc User-Plane encryption key
* \return A status about the processing, OK or error code.
*/
boolean_t pdcp_config_req_asn1 (
const protocol_ctxt_t* const ctxt_pP,
pdcp_t *const pdcp_pP,
const srb_flag_t srb_flagP,
const rlc_mode_t rlc_mode,
const uint32_t action,
const uint16_t lc_id,
const uint16_t mch_id,
const rb_id_t rb_id,
const uint8_t rb_sn,
const uint8_t rb_report,
const uint16_t header_compression_profile,
const uint8_t security_mode,
uint8_t *const kRRCenc,
uint8_t *const kRRCint,
uint8_t *const kUPenc);
/*! \fn void pdcp_add_UE(const protocol_ctxt_t* const ctxt_pP)
* \brief Function (for RRC) to add a new UE in PDCP module
* \param[in] ctxt_pP Running context.
* \return A status about the processing, OK or error code.
*/
void pdcp_add_UE(const protocol_ctxt_t* const ctxt_pP);
/*! \fn boolean_t pdcp_remove_UE(const protocol_ctxt_t* const ctxt_pP)
* \brief Function for RRC to remove UE from PDCP module hashtable
* \param[in] ctxt_pP Running context.
* \return A status about the processing, OK or error code.
*/
boolean_t pdcp_remove_UE(
const protocol_ctxt_t* const ctxt_pP);
/*! \fn void rrc_pdcp_config_release( const protocol_ctxt_t* const, rb_id_t)
* \brief This functions is unused
* \param[in] ctxt_pP Running context.
* \param[in] rab_id Radio Bearer ID of relevant PDCP entity
* \return none
* \note None
* @ingroup _pdcp
*/
//void rrc_pdcp_config_release ( const protocol_ctxt_t* const ctxt_pP, rb_id_t);
/*! \fn void pdcp_run(const protocol_ctxt_t* const ctxt_pP)
* \brief Runs PDCP entity to let it handle incoming/outgoing SDUs
* \param[in] ctxt_pP Running context.
* \return none
* \note None
* @ingroup _pdcp
*/
void pdcp_run (
const protocol_ctxt_t* const ctxt_pP);
int pdcp_module_init (void);
void pdcp_module_cleanup (void);
void pdcp_layer_init (void);
void pdcp_layer_cleanup (void);
#if defined(PDCP_USE_NETLINK_QUEUES)
int pdcp_netlink_init (void);
#endif
#define PDCP2NW_DRIVER_FIFO 21
#define NW_DRIVER2PDCP_FIFO 22
int pdcp_fifo_flush_sdus ( const protocol_ctxt_t* const ctxt_pP);
int pdcp_fifo_read_input_sdus_remaining_bytes ( const protocol_ctxt_t* const ctxt_pP);
int pdcp_fifo_read_input_sdus ( const protocol_ctxt_t* const ctxt_pP);
void pdcp_fifo_read_input_sdus_from_otg ( const protocol_ctxt_t* const ctxt_pP);
//-----------------------------------------------------------------------------
/*
* Following two types are utilized between NAS driver and PDCP
*/
typedef struct pdcp_data_req_header_s {
rb_id_t rb_id;
sdu_size_t data_size;
signed int inst;
ip_traffic_type_t traffic_type;
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
uint32_t sourceL2Id;
uint32_t destinationL2Id;
#endif
} pdcp_data_req_header_t;
typedef struct pdcp_data_ind_header_s {
rb_id_t rb_id;
sdu_size_t data_size;
signed int inst;
ip_traffic_type_t dummy_traffic_type;
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
uint32_t sourceL2Id;
uint32_t destinationL2Id;
#endif
} pdcp_data_ind_header_t;
struct pdcp_netlink_element_s {
pdcp_data_req_header_t pdcp_read_header;
/* Data part of the message */
uint8_t *data;
};
//TTN for D2D (PC5S)
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
#define PDCP_SOCKET_PORT_NO 9999 //temporary value
#define PC5_SIGNALLING_PAYLOAD_SIZE 100 //should be updated with a correct value
int pdcp_pc5_sockfd;
struct sockaddr_in prose_ctrl_addr;
struct sockaddr_in prose_pdcp_addr;
struct sockaddr_in pdcp_sin;
void pdcp_pc5_socket_init(void);
typedef struct {
rb_id_t rb_id;
sdu_size_t data_size;
signed int inst;
ip_traffic_type_t traffic_type;
uint32_t sourceL2Id;
uint32_t destinationL2Id;
} __attribute__((__packed__)) pc5s_header_t;
//new PC5S-message
typedef struct {
unsigned char bytes[PC5_SIGNALLING_PAYLOAD_SIZE];
} __attribute__((__packed__)) PC5SignallingMessage ;
//example of PC5-S messages
typedef struct {
pc5s_header_t pc5s_header;
union {
uint8_t status;
PC5SignallingMessage pc5_signalling_message;
} pc5sPrimitive;
} __attribute__((__packed__)) sidelink_pc5s_element;
#endif
/*
* PDCP limit values
*/
#define PDCP_MAX_SDU_SIZE 8188 // octets, see 4.3.1 Services provided to upper layers
#define PDCP_MAX_SN_5BIT 31 // 2^5-1
#define PDCP_MAX_SN_7BIT 127 // 2^7-1
#define PDCP_MAX_SN_12BIT 4095 // 2^12-1
/*
* Reordering_Window: half of the PDCP SN space
*/
#define REORDERING_WINDOW_SN_5BIT 16
#define REORDERING_WINDOW_SN_7BIT 64
#define REORDERING_WINDOW_SN_12BIT 2048
signed int pdcp_2_nas_irq;
pdcp_stats_t UE_pdcp_stats[MAX_MOBILES_PER_ENB];
pdcp_stats_t eNB_pdcp_stats[NUMBER_OF_eNB_MAX];
//pdcp_t pdcp_array_srb_ue[MAX_MOBILES_PER_ENB][2];
//pdcp_t pdcp_array_drb_ue[MAX_MOBILES_PER_ENB][maxDRB];
//pdcp_t pdcp_array_srb_eNB[NUMBER_OF_eNB_MAX][MAX_MOBILES_PER_ENB][2];
//pdcp_t pdcp_array_drb_eNB[NUMBER_OF_eNB_MAX][MAX_MOBILES_PER_ENB][maxDRB];
// for UE code conly
rnti_t pdcp_UE_UE_module_id_to_rnti[MAX_MOBILES_PER_ENB];
rnti_t pdcp_eNB_UE_instance_to_rnti[MAX_MOBILES_PER_ENB]; // for noS1 mode
unsigned int pdcp_eNB_UE_instance_to_rnti_index;
#if (LTE_RRC_VERSION >= MAKE_VERSION(10, 0, 0))
pdcp_mbms_t pdcp_mbms_array_ue[MAX_MOBILES_PER_ENB][LTE_maxServiceCount][LTE_maxSessionPerPMCH]; // some constants from openair2/RRC/LTE/MESSAGES/asn1_constants.h
pdcp_mbms_t pdcp_mbms_array_eNB[NUMBER_OF_eNB_MAX][LTE_maxServiceCount][LTE_maxSessionPerPMCH]; // some constants from openair2/RRC/LTE/MESSAGES/asn1_constants.h
#endif
sdu_size_t pdcp_output_sdu_bytes_to_write;
sdu_size_t pdcp_output_header_bytes_to_write;
list_t pdcp_sdu_list;
int pdcp_sent_a_sdu;
pdcp_data_req_header_t pdcp_input_header;
unsigned char pdcp_input_sdu_buffer[MAX_IP_PACKET_SIZE];
sdu_size_t pdcp_input_index_header;
sdu_size_t pdcp_input_sdu_size_read;
sdu_size_t pdcp_input_sdu_remaining_size_to_read;
#define PDCP_COLL_KEY_VALUE(mODULE_iD, rNTI, iS_eNB, rB_iD, iS_sRB) \
((hash_key_t)mODULE_iD | \
(((hash_key_t)(rNTI)) << 8) | \
(((hash_key_t)(iS_eNB)) << 24) | \
(((hash_key_t)(rB_iD)) << 25) | \
(((hash_key_t)(iS_sRB)) << 33) | \
(((hash_key_t)(0x55)) << 34))
// hash key to the same PDCP as indexed by PDCP_COLL_KEY_VALUE(... rB_iD, iS_sRB=0) where rB_iD
// is the default DRB ID. The hidden code 0x55 indicates the key is indexed by (rB_iD,is_sRB)
// whereas the hidden code 0xaa indicates the key is for default DRB only
#define PDCP_COLL_KEY_DEFAULT_DRB_VALUE(mODULE_iD, rNTI, iS_eNB) \
((hash_key_t)mODULE_iD | \
(((hash_key_t)(rNTI)) << 8) | \
(((hash_key_t)(iS_eNB)) << 24) | \
(((hash_key_t)(0xff)) << 25) | \
(((hash_key_t)(0x00)) << 33) | \
(((hash_key_t)(0xaa)) << 34))
// service id max val is maxServiceCount = 16 (asn1_constants.h)
#define PDCP_COLL_KEY_MBMS_VALUE(mODULE_iD, rNTI, iS_eNB, sERVICE_ID, sESSION_ID) \
((hash_key_t)mODULE_iD | \
(((hash_key_t)(rNTI)) << 8) | \
(((hash_key_t)(iS_eNB)) << 24) | \
(((hash_key_t)(sERVICE_ID)) << 32) | \
(((hash_key_t)(sESSION_ID)) << 37) | \
(((hash_key_t)(0x0000000000000001)) << 63))
extern hash_table_t *pdcp_coll_p;
#endif
/*@}*/
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