219 lines
9.1 KiB
C
219 lines
9.1 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 1.0 (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 rrc_eNB_S1AP.h
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* \brief rrc S1AP procedures for eNB
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* \author Laurent Winckel and Sebastien ROUX and Navid Nikaein and Lionel GAUTHIER
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* \date 2013
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* \version 1.0
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* \company Eurecom
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* \email: navid.nikaein@eurecom.fr
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*/
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#ifndef RRC_ENB_S1AP_H_
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#define RRC_ENB_S1AP_H_
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# if defined(ENABLE_USE_MME)
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#include "UL-DCCH-Message.h"
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/* Up link procedures */
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# if defined(ENABLE_ITTI)
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typedef struct rrc_ue_s1ap_ids_s {
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/* Tree related data */
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RB_ENTRY(rrc_ue_s1ap_ids_s) entries;
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// keys
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uint16_t ue_initial_id;
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uint32_t eNB_ue_s1ap_id;
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// value
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rnti_t ue_rnti;
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} rrc_ue_s1ap_ids_t;
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int
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rrc_eNB_S1AP_compare_ue_ids(
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struct rrc_ue_s1ap_ids_s* c1_pP,
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struct rrc_ue_s1ap_ids_s* c2_pP
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);
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struct rrc_rnti_tree_s;
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RB_PROTOTYPE(rrc_rnti_tree_s, rrc_ue_s1ap_ids_s, entries, rrc_eNB_S1AP_compare_ue_ids);
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struct rrc_ue_s1ap_ids_s*
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rrc_eNB_S1AP_get_ue_ids(
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eNB_RRC_INST* const rrc_instance_pP,
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const uint16_t ue_initial_id,
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const uint32_t eNB_ue_s1ap_id
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);
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void
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rrc_eNB_S1AP_remove_ue_ids(
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eNB_RRC_INST* const rrc_instance_pP,
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struct rrc_ue_s1ap_ids_s* const ue_ids_pP
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);
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void
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rrc_eNB_generate_dedicatedRRCConnectionReconfiguration(const protocol_ctxt_t* const ctxt_pP,
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rrc_eNB_ue_context_t* const ue_context_pP,
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const uint8_t ho_state
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);
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/*! \fn void rrc_eNB_send_S1AP_INITIAL_CONTEXT_SETUP_RESP(uint8_t mod_id, uint8_t ue_index)
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*\brief create a S1AP_INITIAL_CONTEXT_SETUP_RESP for S1AP.
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*\param ctxt_pP Running context.
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*\param ue_context_pP RRC UE context.
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*/
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void
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rrc_eNB_send_S1AP_INITIAL_CONTEXT_SETUP_RESP(
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const protocol_ctxt_t* const ctxt_pP,
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rrc_eNB_ue_context_t* const ue_context_pP
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);
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/*! \fn void rrc_eNB_send_S1AP_UPLINK_NAS(const protocol_ctxt_t * const ctxt_pP, eNB_RRC_UE_t * const ue_context_pP, UL_DCCH_Message_t * const ul_dcch_msg)
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*\brief create a S1AP_UPLINK_NAS to transfer a NAS message to S1AP.
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*\param ctxt_pP Running context.
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*\param ue_context_pP UE context.
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*\param ul_dcch_msg The message receive by RRC holding the NAS message.
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*/
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void
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rrc_eNB_send_S1AP_UPLINK_NAS(
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const protocol_ctxt_t* const ctxt_pP,
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rrc_eNB_ue_context_t* const ue_context_pP,
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UL_DCCH_Message_t* const ul_dcch_msg
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);
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/*! \fn void rrc_eNB_send_S1AP_UE_CAPABILITIES_IND(const protocol_ctxt_t * const ctxt_pP, eNB_RRC_UE_t * const ue_context_pP, UL_DCCH_Message_t *ul_dcch_msg)
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*\brief create a S1AP_UE_CAPABILITIES_IND to transfer a NAS message to S1AP.
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*\param ctxt_pP Running context.
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*\param ue_context_pP UE context.
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*\param ul_dcch_msg The message receive by RRC holding the NAS message.
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*/
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void rrc_eNB_send_S1AP_UE_CAPABILITIES_IND(
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const protocol_ctxt_t* const ctxt_pP,
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rrc_eNB_ue_context_t* const ue_context_pP,
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UL_DCCH_Message_t* ul_dcch_msg
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);
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/*! \fn rrc_eNB_send_S1AP_NAS_FIRST_REQ(const protocol_ctxt_t* const ctxt_pP,eNB_RRC_UE_t *const ue_context_pP, RRCConnectionSetupComplete_r8_IEs_t *rrcConnectionSetupComplete)
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*\brief create a S1AP_NAS_FIRST_REQ to indicate that RRC has completed its first connection setup to S1AP.
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*\brief eventually forward a NAS message to S1AP.
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*\param ctxt_pP Running context.
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*\param ue_context_pP RRC UE context.
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*\param rrcConnectionSetupComplete The message receive by RRC that may hold the NAS message.
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*/
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void
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rrc_eNB_send_S1AP_NAS_FIRST_REQ(
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const protocol_ctxt_t* const ctxt_pP,
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rrc_eNB_ue_context_t* const ue_context_pP,
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RRCConnectionSetupComplete_r8_IEs_t* rrcConnectionSetupComplete
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);
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/*! \fn rrc_eNB_send_S1AP_UE_CONTEXT_RELEASE_REQ(const module_id_t enb_mod_idP, const struct rrc_eNB_ue_context_s *const ue_context_pP, const s1ap_Cause_t causeP, const long cause_valueP)
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*\brief create a S1AP_UE_CONTEXT_RELEASE_REQ message, the message is sent by the eNB to S1AP task to request the release of
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the UE-associated S1-logical connection over the S1 interface. .
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*\param enb_mod_idP Instance ID of eNB.
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*\param ue_context_pP UE context in the eNB.
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*\param causeP Origin of the cause for the UE removal.
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*\param cause_valueP Contextual value (in regard of the origin) of the cause.
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*/
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void rrc_eNB_send_S1AP_UE_CONTEXT_RELEASE_REQ (
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const module_id_t enb_mod_idP,
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const rrc_eNB_ue_context_t* const ue_context_pP,
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const s1ap_Cause_t causeP,
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const long cause_valueP
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);
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/* Down link procedures */
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/*! \fn rrc_eNB_process_S1AP_DOWNLINK_NAS(MessageDef *msg_p, const char *msg_name, instance_t instance, mui_t *rrc_eNB_mui)
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*\brief process a S1AP_DOWNLINK_NAS message received from S1AP and transfer the embedded NAS message to UE.
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*\param msg_p Message received by RRC.
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*\param msg_name Message name.
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*\param instance Message instance.
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*\param rrc_eNB_mui Counter for lower level message identification.
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*\return 0 when successful, -1 if the UE index can not be retrieved.
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*/
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int rrc_eNB_process_S1AP_DOWNLINK_NAS(MessageDef *msg_p, const char *msg_name, instance_t instance, mui_t *rrc_eNB_mui);
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/*! \fn rrc_eNB_process_S1AP_INITIAL_CONTEXT_SETUP_REQ(MessageDef *msg_p, const char *msg_name, instance_t instance)
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*\brief process a S1AP_INITIAL_CONTEXT_SETUP_REQ message received from S1AP.
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*\param msg_p Message received by RRC.
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*\param msg_name Message name.
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*\param instance Message instance.
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*\return 0 when successful, -1 if the UE index can not be retrieved.
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*/
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int rrc_eNB_process_S1AP_INITIAL_CONTEXT_SETUP_REQ(MessageDef *msg_p, const char *msg_name, instance_t instance);
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/*! \fn rrc_eNB_process_S1AP_E_RAB_SETUP_REQ(MessageDef *msg_p, const char *msg_name, instance_t instance);
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*\brief process a S1AP dedicated E_RAB setup request message received from S1AP.
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*\param msg_p Message received by RRC.
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*\param msg_name Message name.
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*\param instance Message instance.
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*\return 0 when successful, -1 if the UE index can not be retrieved.
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*/
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int rrc_eNB_process_S1AP_E_RAB_SETUP_REQ(MessageDef *msg_p, const char *msg_name, instance_t instance);
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/*! \fn rrc_eNB_send_S1AP_E_RAB_SETUP_RESP(const protocol_ctxt_t* const ctxt_pP, rrc_eNB_ue_context_t* const ue_context_pP, uint8_t xid )
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*\brief send a S1AP dedicated E_RAB setup response
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*\param ctxt_pP contxt infirmation
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*\param e_contxt_pP ue specific context at the eNB
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*\param xid transaction identifier
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*\return 0 when successful, -1 if the UE index can not be retrieved.
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*/
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int rrc_eNB_send_S1AP_E_RAB_SETUP_RESP(const protocol_ctxt_t* const ctxt_pP, rrc_eNB_ue_context_t* const ue_context_pP, uint8_t xid );
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/*! \fn rrc_eNB_process_S1AP_UE_CTXT_MODIFICATION_REQ(MessageDef *msg_p, const char *msg_name, instance_t instance)
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*\brief process a S1AP_UE_CTXT_MODIFICATION_REQ message received from S1AP.
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*\param msg_p Message received by RRC.
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*\param msg_name Message name.
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*\param instance Message instance.
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*\return 0 when successful, -1 if the UE index can not be retrieved.
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*/
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int rrc_eNB_process_S1AP_UE_CTXT_MODIFICATION_REQ(MessageDef *msg_p, const char *msg_name, instance_t instance);
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/*! \fn rrc_eNB_process_S1AP_UE_CONTEXT_RELEASE_REQ(MessageDef *msg_p, const char *msg_name, instance_t instance)
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*\brief process a S1AP_UE_CONTEXT_RELEASE_REQ message received from S1AP.
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*\param msg_p Message received by RRC.
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*\param msg_name Message name.
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*\param instance Message instance.
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*\return 0 when successful, -1 if the UE index can not be retrieved.
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*/
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int rrc_eNB_process_S1AP_UE_CONTEXT_RELEASE_REQ (MessageDef *msg_p, const char *msg_name, instance_t instance);
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/*! \fn rrc_eNB_process_S1AP_UE_CONTEXT_RELEASE_COMMAND(MessageDef *msg_p, const char *msg_name, instance_t instance)
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*\brief process a rrc_eNB_process_S1AP_UE_CONTEXT_RELEASE_COMMAND message received from S1AP.
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*\param msg_p Message received by RRC.
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*\param msg_name Message name.
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*\param instance Message instance.
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*\return 0 when successful, -1 if the UE index can not be retrieved.
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*/
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int rrc_eNB_process_S1AP_UE_CONTEXT_RELEASE_COMMAND (MessageDef *msg_p, const char *msg_name, instance_t instance);
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# endif
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# endif /* defined(ENABLE_USE_MME) */
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#endif /* RRC_ENB_S1AP_H_ */
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