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Preliminary work to handle UE context setup response at F1AP layer of the CU

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-Remaining to handle the incoming information at RRC layer of the CU as well
This commit is contained in:
matzakos
2021-09-03 11:17:48 +02:00
parent 00a47807b1
commit 7fab01472e
4 changed files with 134 additions and 30 deletions
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openair2/COMMON/f1ap_messages_types.h
+11
View File
@@ -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 {
openair2/F1AP/f1ap_cu_ue_context_management.c
+86
View File
@@ -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;
}
openair2/F1AP/f1ap_du_ue_context_management.c
+32 -29
View File
@@ -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;
}
}
}
openair2/RRC/NR/rrc_gNB.c
+5 -1
View File
@@ -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");