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Use F1AP lib for F1 Setup Response in stack

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This commit is contained in:
Guido Casati
2024-09-27 17:38:38 +02:00
parent df2c92e652
commit 3a5ace00d2
4 changed files with 24 additions and 301 deletions
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openair2/F1AP/f1ap_du_interface_management.c
+6 -170
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@@ -325,177 +325,13 @@ int DU_send_F1_SETUP_REQUEST(sctp_assoc_t assoc_id, const f1ap_setup_req_t *setu
int DU_handle_F1_SETUP_RESPONSE(instance_t instance, sctp_assoc_t assoc_id, uint32_t stream, F1AP_F1AP_PDU_t *pdu)
{
LOG_D(F1AP, "DU_handle_F1_SETUP_RESPONSE\n");
AssertFatal(pdu->present == F1AP_F1AP_PDU_PR_successfulOutcome,
"pdu->present != F1AP_F1AP_PDU_PR_successfulOutcome\n");
AssertFatal(pdu->choice.successfulOutcome->procedureCode == F1AP_ProcedureCode_id_F1Setup,
"pdu->choice.successfulOutcome->procedureCode != F1AP_ProcedureCode_id_F1Setup\n");
AssertFatal(pdu->choice.successfulOutcome->criticality == F1AP_Criticality_reject,
"pdu->choice.successfulOutcome->criticality != F1AP_Criticality_reject\n");
AssertFatal(pdu->choice.successfulOutcome->value.present == F1AP_SuccessfulOutcome__value_PR_F1SetupResponse,
"pdu->choice.successfulOutcome->value.present != F1AP_SuccessfulOutcome__value_PR_F1SetupResponse\n");
F1AP_F1SetupResponse_t *in = &pdu->choice.successfulOutcome->value.choice.F1SetupResponse;
F1AP_F1SetupResponseIEs_t *ie;
int TransactionId = -1;
int num_cells_to_activate = 0;
/* Decode */
f1ap_setup_resp_t resp = {0};
for (int i=0; i < in->protocolIEs.list.count; i++) {
ie = in->protocolIEs.list.array[i];
switch (ie->id) {
case F1AP_ProtocolIE_ID_id_TransactionID:
AssertFatal(ie->criticality == F1AP_Criticality_reject,
"ie->criticality != F1AP_Criticality_reject\n");
AssertFatal(ie->value.present == F1AP_F1SetupResponseIEs__value_PR_TransactionID,
"ie->value.present != F1AP_F1SetupResponseIEs__value_PR_TransactionID\n");
TransactionId=ie->value.choice.TransactionID;
LOG_D(F1AP, "F1AP: F1Setup-Resp: TransactionId %d\n",
TransactionId);
break;
case F1AP_ProtocolIE_ID_id_gNB_CU_Name:
AssertFatal(ie->criticality == F1AP_Criticality_ignore,
"ie->criticality != F1AP_Criticality_ignore\n");
AssertFatal(ie->value.present == F1AP_F1SetupResponseIEs__value_PR_GNB_CU_Name,
"ie->value.present != F1AP_F1SetupResponseIEs__value_PR_GNB_CU_Name\n");
resp.gNB_CU_name = malloc(ie->value.choice.GNB_CU_Name.size+1);
memcpy(resp.gNB_CU_name, ie->value.choice.GNB_CU_Name.buf, ie->value.choice.GNB_CU_Name.size);
resp.gNB_CU_name[ie->value.choice.GNB_CU_Name.size] = '\0';
LOG_D(F1AP, "F1AP: F1Setup-Resp: gNB_CU_name %s\n", resp.gNB_CU_name);
break;
case F1AP_ProtocolIE_ID_id_GNB_CU_RRC_Version:
AssertFatal(ie->criticality == F1AP_Criticality_reject,
"ie->criticality != F1AP_Criticality_reject\n");
AssertFatal(ie->value.present == F1AP_F1SetupResponseIEs__value_PR_RRC_Version,
"ie->value.present != F1AP_F1SetupResponseIEs__value_PR_RRC_Version\n");
// RRC Version: "This IE is not used in this release."
if(ie->value.choice.RRC_Version.iE_Extensions) {
F1AP_ProtocolExtensionContainer_10696P228_t *ext =
(F1AP_ProtocolExtensionContainer_10696P228_t *)ie->value.choice.RRC_Version.iE_Extensions;
if(ext->list.count > 0){
F1AP_RRC_Version_ExtIEs_t *rrcext = ext->list.array[0];
OCTET_STRING_t *os = &rrcext->extensionValue.choice.OCTET_STRING_SIZE_3_;
for (int i = 0; i < 3; i++)
resp.rrc_ver[i] = os->buf[i];
}
}
break;
case F1AP_ProtocolIE_ID_id_Cells_to_be_Activated_List: {
AssertFatal(ie->criticality == F1AP_Criticality_reject,
"ie->criticality != F1AP_Criticality_reject\n");
AssertFatal(ie->value.present == F1AP_F1SetupResponseIEs__value_PR_Cells_to_be_Activated_List,
"ie->value.present != F1AP_F1SetupResponseIEs__value_PR_Cells_to_be_Activated_List\n");
num_cells_to_activate = ie->value.choice.Cells_to_be_Activated_List.list.count;
LOG_D(F1AP, "F1AP: Activating %d cells\n",num_cells_to_activate);
for (int i=0; i<num_cells_to_activate; i++) {
F1AP_Cells_to_be_Activated_List_ItemIEs_t *cells_to_be_activated_list_item_ies = (F1AP_Cells_to_be_Activated_List_ItemIEs_t *) ie->value.choice.Cells_to_be_Activated_List.list.array[i];
AssertFatal(cells_to_be_activated_list_item_ies->id == F1AP_ProtocolIE_ID_id_Cells_to_be_Activated_List_Item,
"cells_to_be_activated_list_item_ies->id != F1AP_ProtocolIE_ID_id_Cells_to_be_Activated_List_Item");
AssertFatal(cells_to_be_activated_list_item_ies->criticality == F1AP_Criticality_reject,
"cells_to_be_activated_list_item_ies->criticality == F1AP_Criticality_reject");
AssertFatal(cells_to_be_activated_list_item_ies->value.present == F1AP_Cells_to_be_Activated_List_ItemIEs__value_PR_Cells_to_be_Activated_List_Item,
"cells_to_be_activated_list_item_ies->value.present == F1AP_Cells_to_be_Activated_List_ItemIEs__value_PR_Cells_to_be_Activated_List_Item");
F1AP_Cells_to_be_Activated_List_Item_t *cell =
&cells_to_be_activated_list_item_ies->value.choice.Cells_to_be_Activated_List_Item;
TBCD_TO_MCC_MNC(&cell->nRCGI.pLMN_Identity,
resp.cells_to_activate[i].plmn.mcc,
resp.cells_to_activate[i].plmn.mnc,
resp.cells_to_activate[i].plmn.mnc_digit_length);
LOG_D(F1AP, "nr_cellId : %x %x %x %x %x\n",
cell->nRCGI.nRCellIdentity.buf[0],
cell->nRCGI.nRCellIdentity.buf[1],
cell->nRCGI.nRCellIdentity.buf[2],
cell->nRCGI.nRCellIdentity.buf[3],
cell->nRCGI.nRCellIdentity.buf[4]);
BIT_STRING_TO_NR_CELL_IDENTITY(&cell->nRCGI.nRCellIdentity, resp.cells_to_activate[i].nr_cellid);
if (cell->nRPCI != NULL)
resp.cells_to_activate[i].nrpci = *cell->nRPCI;
F1AP_ProtocolExtensionContainer_10696P112_t *ext = (F1AP_ProtocolExtensionContainer_10696P112_t *)cell->iE_Extensions;
if (ext==NULL)
continue;
for (int cnt=0; cnt<ext->list.count; cnt++) {
F1AP_Cells_to_be_Activated_List_ItemExtIEs_t *cells_to_be_activated_list_itemExtIEs=(F1AP_Cells_to_be_Activated_List_ItemExtIEs_t *)ext->list.array[cnt];
switch (cells_to_be_activated_list_itemExtIEs->id) {
/*
case F1AP_Cells_to_be_Activated_List_ItemExtIEs__extensionValue_PR_NOTHING:
case F1AP_Cells_to_be_Activated_List_ItemExtIEs__extensionValue_PR_GNB_CUSystemInformation,
case F1AP_Cells_to_be_Activated_List_ItemExtIEs__extensionValue_PR_AvailablePLMNList,
case F1AP_Cells_to_be_Activated_List_ItemExtIEs__extensionValue_PR_ExtendedAvailablePLMN_List,
case F1AP_Cells_to_be_Activated_List_ItemExtIEs__extensionValue_PR_IAB_Info_IAB_donor_CU,
case F1AP_Cells_to_be_Activated_List_ItemExtIEs__extensionValue_PR_AvailableSNPN_ID_List
*/
case F1AP_ProtocolIE_ID_id_gNB_CUSystemInformation: {
resp.cells_to_activate[i].nrpci = (cell->nRPCI != NULL) ? *cell->nRPCI : 0;
F1AP_GNB_CUSystemInformation_t *gNB_CUSystemInformation = (F1AP_GNB_CUSystemInformation_t *)&cells_to_be_activated_list_itemExtIEs->extensionValue.choice.GNB_CUSystemInformation;
resp.cells_to_activate[i].num_SI = gNB_CUSystemInformation->sibtypetobeupdatedlist.list.count;
AssertFatal(ext->list.count==1,"At least one SI message should be there, and only 1 for now!\n");
LOG_D(F1AP,
"F1AP: Cell %d MCC %d MNC %d NRCellid %lx num_si %d\n",
i,
resp.cells_to_activate[i].plmn.mcc,
resp.cells_to_activate[i].plmn.mnc,
resp.cells_to_activate[i].nr_cellid,
resp.cells_to_activate[i].num_SI);
for (int s = 0; s < resp.cells_to_activate[i].num_SI; s++) {
F1AP_SibtypetobeupdatedListItem_t *sib_item = gNB_CUSystemInformation->sibtypetobeupdatedlist.list.array[s];
f1ap_sib_msg_t *SI_msg = &resp.cells_to_activate[i].SI_msg[s];
SI_msg->SI_container = calloc(sib_item->sIBmessage.size, sizeof(uint8_t));
AssertFatal(SI_msg->SI_container != NULL, "out of memory\n");
memcpy(SI_msg->SI_container, sib_item->sIBmessage.buf, sib_item->sIBmessage.size);
SI_msg->SI_container_length = sib_item->sIBmessage.size;
SI_msg->SI_type = sib_item->sIBtype;
LOG_D(F1AP, "F1AP: SI_container_length[%d][%ld] %ld bytes\n", i, sib_item->sIBtype, sib_item->sIBmessage.size);
}
break;
}
case F1AP_ProtocolIE_ID_id_AvailablePLMNList:
AssertFatal(1==0,"F1AP_ProtocolIE_ID_id_AvailablePLMNList not supported yet\n");
break;
case F1AP_ProtocolIE_ID_id_ExtendedAvailablePLMN_List:
AssertFatal(1==0,"F1AP_ProtocolIE_ID_id_AvailablePLMNList not supported yet\n");
break;
case F1AP_ProtocolIE_ID_id_IAB_Info_IAB_donor_CU:
AssertFatal(1==0,"F1AP_ProtocolIE_ID_id_AvailablePLMNList not supported yet\n");
break;
case F1AP_ProtocolIE_ID_id_AvailableSNPN_ID_List:
AssertFatal(1==0,"F1AP_ProtocolIE_ID_id_AvailablePLMNList not supported yet\n");
break;
default:
AssertFatal(1==0,"F1AP_ProtocolIE_ID_id %d unknown\n",(int)cells_to_be_activated_list_itemExtIEs->id);
break;
}
} // for (cnt=...
} // for (cells_to_activate...
break;
} // case F1AP_ProtocolIE_ID_id_Cells_to_be_Activated_List
default:
AssertFatal(1==0,"F1AP_ProtocolIE_ID_id %d unknown\n", (int)ie->id);
break;
} // switch ie
} // for IE
AssertFatal(TransactionId!=-1,"TransactionId was not sent\n");
LOG_D(F1AP,"F1AP: num_cells_to_activate %d\n",num_cells_to_activate);
resp.num_cells_to_activate = num_cells_to_activate;
// tmp
for (int i=0; i<num_cells_to_activate; i++)
AssertFatal(resp.cells_to_activate[i].num_SI == 0, "System Information handling not implemented");
if (!decode_f1ap_setup_response(pdu, &resp)) {
LOG_E(F1AP, "cannot decode F1AP Setup Response\n");
free_f1ap_setup_response(&resp);
return -1;
}
LOG_D(F1AP, "Sending F1AP_SETUP_RESP ITTI message\n");
f1_setup_response(&resp);
return 0;