From 7fab01472edbeca24b79c596de476c9c1043c0d5 Mon Sep 17 00:00:00 2001 From: matzakos Date: Fri, 3 Sep 2021 11:17:48 +0200 Subject: [PATCH] Preliminary work to handle UE context setup response at F1AP layer of the CU -Remaining to handle the incoming information at RRC layer of the CU as well --- openair2/COMMON/f1ap_messages_types.h | 11 +++ openair2/F1AP/f1ap_cu_ue_context_management.c | 86 +++++++++++++++++++ openair2/F1AP/f1ap_du_ue_context_management.c | 61 ++++++------- openair2/RRC/NR/rrc_gNB.c | 6 +- 4 files changed, 134 insertions(+), 30 deletions(-) diff --git a/openair2/COMMON/f1ap_messages_types.h b/openair2/COMMON/f1ap_messages_types.h index 865de1cb77..c486ceec93 100644 --- a/openair2/COMMON/f1ap_messages_types.h +++ b/openair2/COMMON/f1ap_messages_types.h @@ -324,14 +324,21 @@ typedef struct f1ap_drb_to_be_setup_s { long drb_id; f1ap_up_tnl_t up_ul_tnl[2]; uint8_t up_ul_tnl_length; + f1ap_up_tnl_t up_dl_tnl[2]; + uint8_t up_dl_tnl_length; rlc_mode_t rlc_mode; } f1ap_drb_to_be_setup_t; typedef struct f1ap_srb_to_be_setup_s { long srb_id; rlc_mode_t rlc_mode; + uint8_t lcid; } f1ap_srb_to_be_setup_t; +typedef struct f1ap_rb_failed_to_be_setup_s { + long rb_id; +} f1ap_rb_failed_to_be_setup_t; + typedef struct f1ap_ue_context_setup_req_s { uint32_t gNB_CU_ue_id; // BK: need to replace by use from rnti uint32_t *gNB_DU_ue_id; @@ -366,6 +373,10 @@ typedef struct f1ap_ue_context_setup_resp_s { uint8_t drbs_setup_length; // BK: need to replace by s1ap_initial_context_setup_req f1ap_srb_to_be_setup_t *srbs_setup; uint8_t srbs_setup_length; + uint8_t srbs_failed_to_be_setup_length; + f1ap_rb_failed_to_be_setup_t *srbs_failed_to_be_setup; + uint8_t drbs_failed_to_be_setup_length; + f1ap_rb_failed_to_be_setup_t *drbs_failed_to_be_setup; } f1ap_ue_context_setup_resp_t; typedef enum F1ap_Cause_e { diff --git a/openair2/F1AP/f1ap_cu_ue_context_management.c b/openair2/F1AP/f1ap_cu_ue_context_management.c index 2eaa4a1edd..12e08c644e 100644 --- a/openair2/F1AP/f1ap_cu_ue_context_management.c +++ b/openair2/F1AP/f1ap_cu_ue_context_management.c @@ -625,31 +625,117 @@ int CU_handle_UE_CONTEXT_SETUP_RESPONSE(instance_t instance, uint32_t assoc_id, uint32_t stream, F1AP_F1AP_PDU_t *pdu) { + MessageDef *msg_p; F1AP_UEContextSetupResponse_t *container; F1AP_UEContextSetupResponseIEs_t *ie; DevAssert(pdu); + msg_p = itti_alloc_new_message(TASK_DU_F1, 0, F1AP_UE_CONTEXT_SETUP_RESP); + f1ap_ue_context_setup_resp_t *f1ap_ue_context_setup_resp = &F1AP_UE_CONTEXT_SETUP_RESP(msg_p); container = &pdu->choice.successfulOutcome->value.choice.UEContextSetupResponse; + int i; + /* GNB_CU_UE_F1AP_ID */ F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupResponseIEs_t, ie, container, F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID, true); + f1ap_ue_context_setup_resp->gNB_CU_ue_id = ie->value.choice.GNB_CU_UE_F1AP_ID; + /* GNB_DU_UE_F1AP_ID */ F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupResponseIEs_t, ie, container, F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID, true); + f1ap_ue_context_setup_resp->gNB_DU_ue_id = ie->value.choice.GNB_DU_UE_F1AP_ID; + /* DUtoCURRCInformation */ F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupResponseIEs_t, ie, container, F1AP_ProtocolIE_ID_id_DUtoCURRCInformation, true); + if (ie == NULL){ + LOG_E(F1AP,"%s %d: ie is a NULL pointer \n",__FILE__,__LINE__); + return -1; + } + memcpy(f1ap_ue_context_setup_resp->du_to_cu_rrc_information, ie->value.choice.DUtoCURRCInformation.cellGroupConfig.buf, ie->value.choice.DUtoCURRCInformation.cellGroupConfig.size); + f1ap_ue_context_setup_resp->du_to_cu_rrc_information_length = ie->value.choice.DUtoCURRCInformation.cellGroupConfig.size; + /* DRBs_Setup_List */ F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupResponseIEs_t, ie, container, F1AP_ProtocolIE_ID_id_DRBs_Setup_List, true); + if(ie!=NULL){ + f1ap_ue_context_setup_resp->drbs_setup_length = ie->value.choice.DRBs_Setup_List.list.count; + f1ap_ue_context_setup_resp->drbs_setup = calloc(f1ap_ue_context_setup_resp->drbs_setup_length, + sizeof(f1ap_drb_to_be_setup_t)); + AssertFatal(f1ap_ue_context_setup_resp->drbs_setup, + "could not allocate memory for f1ap_ue_context_setup_resp->drbs_setup\n"); + for (i = 0; i < f1ap_ue_context_setup_resp->drbs_setup_length; ++i) { + f1ap_drb_to_be_setup_t *drb_p = &f1ap_ue_context_setup_resp->drbs_setup[i]; + F1AP_DRBs_Setup_Item_t *drbs_setup_item_p; + drbs_setup_item_p = &((F1AP_DRBs_Setup_ItemIEs_t *)ie->value.choice.DRBs_Setup_List.list.array[i])->value.choice.DRBs_Setup_Item; + drb_p->drb_id = drbs_setup_item_p->dRBID; + /* TODO in the following, assume only one UP UL TNL is present. + * this matches/assumes OAI CU/DU implementation, can be up to 2! */ + drb_p->up_dl_tnl_length = 1; + AssertFatal(drbs_setup_item_p->dLUPTNLInformation_ToBeSetup_List.list.count > 0, + "no DL UP TNL Information in DRBs to be Setup list\n"); + F1AP_DLUPTNLInformation_ToBeSetup_Item_t *dl_up_tnl_info_p = (F1AP_DLUPTNLInformation_ToBeSetup_Item_t *)drbs_setup_item_p->dLUPTNLInformation_ToBeSetup_List.list.array[0]; + F1AP_GTPTunnel_t *dl_up_tnl0 = dl_up_tnl_info_p->dLUPTNLInformation.choice.gTPTunnel; + BIT_STRING_TO_TRANSPORT_LAYER_ADDRESS_IPv4(&dl_up_tnl0->transportLayerAddress, drb_p->up_dl_tnl[0].tl_address); + OCTET_STRING_TO_INT32(&dl_up_tnl0->gTP_TEID, drb_p->up_dl_tnl[0].gtp_teid); + + } + } /* SRBs_FailedToBeSetup_List */ F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupResponseIEs_t, ie, container, F1AP_ProtocolIE_ID_id_SRBs_FailedToBeSetup_List, true); + if(ie!=NULL){ + f1ap_ue_context_setup_resp->srbs_failed_to_be_setup_length = ie->value.choice.SRBs_FailedToBeSetup_List.list.count; + f1ap_ue_context_setup_resp->srbs_failed_to_be_setup = calloc(f1ap_ue_context_setup_resp->srbs_failed_to_be_setup_length, + sizeof(f1ap_rb_failed_to_be_setup_t)); + AssertFatal(f1ap_ue_context_setup_resp->srbs_failed_to_be_setup, + "could not allocate memory for f1ap_ue_context_setup_resp->srbs_failed_to_be_setup\n"); + for (i = 0; i < f1ap_ue_context_setup_resp->srbs_failed_to_be_setup_length; ++i) { + f1ap_rb_failed_to_be_setup_t *srb_p = &f1ap_ue_context_setup_resp->srbs_failed_to_be_setup[i]; + srb_p->rb_id = ((F1AP_SRBs_FailedToBeSetup_Item_t *)ie->value.choice.SRBs_FailedToBeSetup_List.list.array[i])->sRBID; + } + + } /* DRBs_FailedToBeSetup_List */ F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupResponseIEs_t, ie, container, F1AP_ProtocolIE_ID_id_DRBs_FailedToBeSetup_List, true); + if(ie!=NULL){ + f1ap_ue_context_setup_resp->drbs_failed_to_be_setup_length = ie->value.choice.DRBs_FailedToBeSetup_List.list.count; + f1ap_ue_context_setup_resp->drbs_failed_to_be_setup = calloc(f1ap_ue_context_setup_resp->drbs_failed_to_be_setup_length, + sizeof(f1ap_rb_failed_to_be_setup_t)); + AssertFatal(f1ap_ue_context_setup_resp->drbs_failed_to_be_setup, + "could not allocate memory for f1ap_ue_context_setup_resp->drbs_failed_to_be_setup\n"); + for (i = 0; i < f1ap_ue_context_setup_resp->drbs_failed_to_be_setup_length; ++i) { + f1ap_rb_failed_to_be_setup_t *drb_p = &f1ap_ue_context_setup_resp->drbs_failed_to_be_setup[i]; + drb_p->rb_id = ((F1AP_DRBs_FailedToBeSetup_Item_t *)ie->value.choice.DRBs_FailedToBeSetup_List.list.array[i])->dRBID; + } + } + /* SCell_FailedtoSetup_List */ F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupResponseIEs_t, ie, container, F1AP_ProtocolIE_ID_id_SCell_FailedtoSetup_List, true); + if(ie!=NULL){ + LOG_E (F1AP, "Not supporting handling of SCell_FailedtoSetup_List \n"); + } + + /* SRBs_Setup_List */ + F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupResponseIEs_t, ie, container, + F1AP_ProtocolIE_ID_id_SRBs_Setup_List, true); + if(ie!=NULL){ + f1ap_ue_context_setup_resp->srbs_setup_length = ie->value.choice.SRBs_Setup_List.list.count; + f1ap_ue_context_setup_resp->srbs_setup = calloc(f1ap_ue_context_setup_resp->srbs_setup_length, + sizeof(f1ap_srb_to_be_setup_t)); + AssertFatal(f1ap_ue_context_setup_resp->drbs_setup, + "could not allocate memory for f1ap_ue_context_setup_resp->drbs_setup\n"); + for (i = 0; i < f1ap_ue_context_setup_resp->srbs_setup_length; ++i) { + f1ap_srb_to_be_setup_t *srb_p = &f1ap_ue_context_setup_resp->srbs_setup[i]; + F1AP_SRBs_Setup_Item_t *srbs_setup_item_p; + srbs_setup_item_p = &((F1AP_SRBs_Setup_ItemIEs_t *)ie->value.choice.SRBs_Setup_List.list.array[i])->value.choice.SRBs_Setup_Item; + srb_p->srb_id = srbs_setup_item_p->sRBID; + srb_p->lcid = srbs_setup_item_p->lCID; + } + } + + itti_send_msg_to_task(TASK_RRC_GNB, instance, msg_p); return 0; } diff --git a/openair2/F1AP/f1ap_du_ue_context_management.c b/openair2/F1AP/f1ap_du_ue_context_management.c index 8815ecb562..10ff9e9edf 100644 --- a/openair2/F1AP/f1ap_du_ue_context_management.c +++ b/openair2/F1AP/f1ap_du_ue_context_management.c @@ -133,33 +133,33 @@ int DU_handle_UE_CONTEXT_SETUP_REQUEST(instance_t instance, F1AP_UEContextSetupRequestIEs_t *ieDrb; F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupRequestIEs_t, ieDrb, container, F1AP_ProtocolIE_ID_id_DRBs_ToBeSetup_List, true); - f1ap_ue_context_setup_req->drbs_to_be_setup_length = ieDrb->value.choice.DRBs_ToBeSetup_List.list.count; - f1ap_ue_context_setup_req->drbs_to_be_setup = calloc(f1ap_ue_context_setup_req->drbs_to_be_setup_length, + if(ieDrb!=NULL){ + f1ap_ue_context_setup_req->drbs_to_be_setup_length = ieDrb->value.choice.DRBs_ToBeSetup_List.list.count; + f1ap_ue_context_setup_req->drbs_to_be_setup = calloc(f1ap_ue_context_setup_req->drbs_to_be_setup_length, sizeof(f1ap_drb_to_be_setup_t)); - AssertFatal(f1ap_ue_context_setup_req->drbs_to_be_setup, + AssertFatal(f1ap_ue_context_setup_req->drbs_to_be_setup, "could not allocate memory for f1ap_ue_context_setup_req->drbs_to_be_setup\n"); - teids=malloc(f1ap_ue_context_setup_req->drbs_to_be_setup_length*sizeof(*teids)); - for (i = 0; i < f1ap_ue_context_setup_req->drbs_to_be_setup_length; ++i) { - f1ap_drb_to_be_setup_t *drb_p = &f1ap_ue_context_setup_req->drbs_to_be_setup[i]; - F1AP_DRBs_ToBeSetup_Item_t *drbs_tobesetup_item_p; - drbs_tobesetup_item_p = &((F1AP_DRBs_ToBeSetup_ItemIEs_t *)ieDrb->value.choice.DRBs_ToBeSetup_List.list.array[i])->value.choice.DRBs_ToBeSetup_Item; - drb_p->drb_id = drbs_tobesetup_item_p->dRBID; - /* TODO in the following, assume only one UP UL TNL is present. - * this matches/assumes OAI CU implementation, can be up to 2! */ - drb_p->up_ul_tnl_length = 1; - AssertFatal(drbs_tobesetup_item_p->uLUPTNLInformation_ToBeSetup_List.list.count > 0, + teids=malloc(f1ap_ue_context_setup_req->drbs_to_be_setup_length*sizeof(*teids)); + for (i = 0; i < f1ap_ue_context_setup_req->drbs_to_be_setup_length; ++i) { + f1ap_drb_to_be_setup_t *drb_p = &f1ap_ue_context_setup_req->drbs_to_be_setup[i]; + F1AP_DRBs_ToBeSetup_Item_t *drbs_tobesetup_item_p; + drbs_tobesetup_item_p = &((F1AP_DRBs_ToBeSetup_ItemIEs_t *)ieDrb->value.choice.DRBs_ToBeSetup_List.list.array[i])->value.choice.DRBs_ToBeSetup_Item; + drb_p->drb_id = drbs_tobesetup_item_p->dRBID; + /* TODO in the following, assume only one UP UL TNL is present. + * this matches/assumes OAI CU implementation, can be up to 2! */ + drb_p->up_ul_tnl_length = 1; + AssertFatal(drbs_tobesetup_item_p->uLUPTNLInformation_ToBeSetup_List.list.count > 0, "no UL UP TNL Information in DRBs to be Setup list\n"); - F1AP_ULUPTNLInformation_ToBeSetup_Item_t *ul_up_tnl_info_p = (F1AP_ULUPTNLInformation_ToBeSetup_Item_t *)drbs_tobesetup_item_p->uLUPTNLInformation_ToBeSetup_List.list.array[0]; - F1AP_GTPTunnel_t *ul_up_tnl0 = ul_up_tnl_info_p->uLUPTNLInformation.choice.gTPTunnel; - BIT_STRING_TO_TRANSPORT_LAYER_ADDRESS_IPv4(&ul_up_tnl0->transportLayerAddress, drb_p->up_ul_tnl[0].tl_address); - OCTET_STRING_TO_INT32(&ul_up_tnl0->gTP_TEID, drb_p->up_ul_tnl[0].gtp_teid); + F1AP_ULUPTNLInformation_ToBeSetup_Item_t *ul_up_tnl_info_p = (F1AP_ULUPTNLInformation_ToBeSetup_Item_t *)drbs_tobesetup_item_p->uLUPTNLInformation_ToBeSetup_List.list.array[0]; + F1AP_GTPTunnel_t *ul_up_tnl0 = ul_up_tnl_info_p->uLUPTNLInformation.choice.gTPTunnel; + BIT_STRING_TO_TRANSPORT_LAYER_ADDRESS_IPv4(&ul_up_tnl0->transportLayerAddress, drb_p->up_ul_tnl[0].tl_address); + OCTET_STRING_TO_INT32(&ul_up_tnl0->gTP_TEID, drb_p->up_ul_tnl[0].gtp_teid); - switch (drbs_tobesetup_item_p->rLCMode) { - case F1AP_RLCMode_rlc_am: - drb_p->rlc_mode = RLC_MODE_AM; + switch (drbs_tobesetup_item_p->rLCMode) { + case F1AP_RLCMode_rlc_am: + drb_p->rlc_mode = RLC_MODE_AM; break; - default: drb_p->rlc_mode = RLC_MODE_TM; break; @@ -180,21 +180,24 @@ int DU_handle_UE_CONTEXT_SETUP_REQUEST(instance_t instance, DURecvCb); teids[i]=x; + } } F1AP_UEContextSetupRequestIEs_t *ieSrb; F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupRequestIEs_t, ieSrb, container, F1AP_ProtocolIE_ID_id_SRBs_ToBeSetup_List, true); - f1ap_ue_context_setup_req->srbs_to_be_setup_length = ieSrb->value.choice.SRBs_ToBeSetup_List.list.count; - f1ap_ue_context_setup_req->srbs_to_be_setup = calloc(f1ap_ue_context_setup_req->srbs_to_be_setup_length, + if(ieSrb != NULL){ + f1ap_ue_context_setup_req->srbs_to_be_setup_length = ieSrb->value.choice.SRBs_ToBeSetup_List.list.count; + f1ap_ue_context_setup_req->srbs_to_be_setup = calloc(f1ap_ue_context_setup_req->srbs_to_be_setup_length, sizeof(f1ap_srb_to_be_setup_t)); - AssertFatal(f1ap_ue_context_setup_req->srbs_to_be_setup, + AssertFatal(f1ap_ue_context_setup_req->srbs_to_be_setup, "could not allocate memory for f1ap_ue_context_setup_req->srbs_to_be_setup\n"); - for (i = 0; i < f1ap_ue_context_setup_req->srbs_to_be_setup_length; ++i) { - f1ap_srb_to_be_setup_t *srb_p = &f1ap_ue_context_setup_req->srbs_to_be_setup[i]; - F1AP_SRBs_ToBeSetup_Item_t *srbs_tobesetup_item_p; - srbs_tobesetup_item_p = &((F1AP_SRBs_ToBeSetup_ItemIEs_t *)ieSrb->value.choice.SRBs_ToBeSetup_List.list.array[i])->value.choice.SRBs_ToBeSetup_Item; - srb_p->srb_id = srbs_tobesetup_item_p->sRBID; + for (i = 0; i < f1ap_ue_context_setup_req->srbs_to_be_setup_length; ++i) { + f1ap_srb_to_be_setup_t *srb_p = &f1ap_ue_context_setup_req->srbs_to_be_setup[i]; + F1AP_SRBs_ToBeSetup_Item_t *srbs_tobesetup_item_p; + srbs_tobesetup_item_p = &((F1AP_SRBs_ToBeSetup_ItemIEs_t *)ieSrb->value.choice.SRBs_ToBeSetup_List.list.array[i])->value.choice.SRBs_ToBeSetup_Item; + srb_p->srb_id = srbs_tobesetup_item_p->sRBID; + } } } diff --git a/openair2/RRC/NR/rrc_gNB.c b/openair2/RRC/NR/rrc_gNB.c index 992855f9d7..1995715e24 100755 --- a/openair2/RRC/NR/rrc_gNB.c +++ b/openair2/RRC/NR/rrc_gNB.c @@ -1365,7 +1365,7 @@ rrc_gNB_process_RRCReconfigurationComplete( /* Here the callback function used as input is not the right one. Need to create a new one probably for F1-U, not sure * if the kind of input parameters to the callback function are convenient though for gtp-u over F1-U.*/ - ue_context_pP->ue_context.incoming_teid[i] = newGtpuCreateTunnel(0, create_tunnel_req.rnti, + ue_context_pP->ue_context.incoming_teid[i] = newGtpuCreateTunnel(INSTANCE_DEFAULT, create_tunnel_req.rnti, create_tunnel_req.incoming_rb_id[i], create_tunnel_req.incoming_rb_id[i], create_tunnel_req.outgoing_teid[i], @@ -3671,6 +3671,10 @@ void *rrc_gnb_task(void *args_p) { rrc_DU_process_ue_context_setup_request(msg_p, msg_name_p, instance); break; + case F1AP_UE_CONTEXT_SETUP_RESP: + LOG_W(NR_RRC, "Handling of F1 UE context setup response context at the RRC layer of the CU is pending \n"); + break; + /* Messages from X2AP */ case X2AP_ENDC_SGNB_ADDITION_REQ: LOG_I(NR_RRC, "Received ENDC sgNB addition request from X2AP \n");