maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add message enc&dec for F1AP Initial UL RRC msg, and test

Browse Source 
Co-authored-by: Guido Casati <hello@guidocasati.com>
This commit is contained in:
Robert Schmidt
2024-09-27 11:22:03 +02:00
committed by Guido Casati
co-authored by Guido Casati
parent 648ed19544
commit ca6eb7bd10
7 changed files with 285 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/COMMON/f1ap_messages_types.h
+1
View File
@@ -339,6 +339,7 @@ typedef struct f1ap_initial_ul_rrc_message_s {
int rrc_container_length;
uint8_t *du2cu_rrc_container;
int du2cu_rrc_container_length;
uint8_t transaction_id;
} f1ap_initial_ul_rrc_message_t;
typedef struct f1ap_ul_rrc_message_s {
openair2/F1AP/lib/CMakeLists.txt
+1
View File
@@ -1,5 +1,6 @@
add_library(f1ap_lib OBJECT
f1ap_lib_common.c
f1ap_rrc_message_transfer.c
)
target_link_libraries(f1ap_lib PRIVATE asn1_f1ap)
target_include_directories(f1ap_lib PUBLIC
openair2/F1AP/lib/f1ap_lib_extern.h
+2
View File
@@ -22,4 +22,6 @@
#ifndef F1AP_LIB_EXTERN_H_
#define F1AP_LIB_EXTERN_H_
#include "f1ap_rrc_message_transfer.h"
#endif /* F1AP_LIB_EXTERN_H_ */
openair2/F1AP/lib/f1ap_lib_includes.h
+4
View File
@@ -23,5 +23,9 @@
#define F1AP_LIB_INCLUDES_H_
#include "F1AP_F1AP-PDU.h"
#include "F1AP_InitialULRRCMessageTransfer.h"
#include "F1AP_InitiatingMessage.h"
#include "F1AP_NRCellIdentity.h"
#include "F1AP_ProtocolIE-Field.h"
#endif /* F1AP_LIB_INCLUDES_H_ */
openair2/F1AP/lib/f1ap_rrc_message_transfer.c
+199
View File
@@ -0,0 +1,199 @@
/*
* 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
*/
#include "f1ap_rrc_message_transfer.h"
#include "f1ap_lib_common.h"
#include "f1ap_lib_includes.h"
#include "f1ap_messages_types.h"
#include "common/utils/assertions.h"
#include "openair3/UTILS/conversions.h"
#include "common/utils/oai_asn1.h"
#include "common/utils/utils.h"
/* ====================================
* F1AP Initial UL RRC Message Transfer
* ==================================== */
/**
* @brief Initial UL RRC Message Transfer encoding
*/
F1AP_F1AP_PDU_t *encode_initial_ul_rrc_message_transfer(const f1ap_initial_ul_rrc_message_t *msg)
{
F1AP_F1AP_PDU_t *pdu = calloc_or_fail(1, sizeof(*pdu));
/* 0. Message Type */
pdu->present = F1AP_F1AP_PDU_PR_initiatingMessage;
asn1cCalloc(pdu->choice.initiatingMessage, tmp);
tmp->procedureCode = F1AP_ProcedureCode_id_InitialULRRCMessageTransfer;
tmp->criticality = F1AP_Criticality_ignore;
tmp->value.present = F1AP_InitiatingMessage__value_PR_InitialULRRCMessageTransfer;
F1AP_InitialULRRCMessageTransfer_t *out = &tmp->value.choice.InitialULRRCMessageTransfer;
/* mandatory */
/* c1. GNB_DU_UE_F1AP_ID */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_InitialULRRCMessageTransferIEs_t, ie1);
ie1->id = F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
ie1->criticality = F1AP_Criticality_reject;
ie1->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_GNB_DU_UE_F1AP_ID;
ie1->value.choice.GNB_DU_UE_F1AP_ID = msg->gNB_DU_ue_id;
/* mandatory */
/* c2. NRCGI */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_InitialULRRCMessageTransferIEs_t, ie2);
ie2->id = F1AP_ProtocolIE_ID_id_NRCGI;
ie2->criticality = F1AP_Criticality_reject;
ie2->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_NRCGI;
MCC_MNC_TO_PLMNID(msg->plmn.mcc, msg->plmn.mnc, msg->plmn.mnc_digit_length, &ie2->value.choice.NRCGI.pLMN_Identity);
NR_CELL_ID_TO_BIT_STRING(msg->nr_cellid, &ie2->value.choice.NRCGI.nRCellIdentity);
/* mandatory */
/* c3. C_RNTI */ // 16
asn1cSequenceAdd(out->protocolIEs.list, F1AP_InitialULRRCMessageTransferIEs_t, ie3);
ie3->id = F1AP_ProtocolIE_ID_id_C_RNTI;
ie3->criticality = F1AP_Criticality_reject;
ie3->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_C_RNTI;
ie3->value.choice.C_RNTI = msg->crnti;
/* mandatory */
/* c4. RRCContainer */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_InitialULRRCMessageTransferIEs_t, ie4);
ie4->id = F1AP_ProtocolIE_ID_id_RRCContainer;
ie4->criticality = F1AP_Criticality_reject;
ie4->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_RRCContainer;
OCTET_STRING_fromBuf(&ie4->value.choice.RRCContainer, (const char *)msg->rrc_container, msg->rrc_container_length);
/* optional */
/* c5. DUtoCURRCContainer */
if (msg->du2cu_rrc_container != NULL) {
asn1cSequenceAdd(out->protocolIEs.list, F1AP_InitialULRRCMessageTransferIEs_t, ie5);
ie5->id = F1AP_ProtocolIE_ID_id_DUtoCURRCContainer;
ie5->criticality = F1AP_Criticality_reject;
ie5->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_DUtoCURRCContainer;
OCTET_STRING_fromBuf(&ie5->value.choice.DUtoCURRCContainer,
(const char *)msg->du2cu_rrc_container,
msg->du2cu_rrc_container_length);
}
/* mandatory */
/* c6. Transaction ID (integer value) */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_InitialULRRCMessageTransferIEs_t, ie6);
ie6->id = F1AP_ProtocolIE_ID_id_TransactionID;
ie6->criticality = F1AP_Criticality_ignore;
ie6->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_TransactionID;
ie6->value.choice.TransactionID = msg->transaction_id;
return pdu;
}
/**
* @brief Initial UL RRC Message Transfer decoding
*/
bool decode_initial_ul_rrc_message_transfer(const F1AP_F1AP_PDU_t *pdu, f1ap_initial_ul_rrc_message_t *out)
{
DevAssert(out != NULL);
memset(out, 0, sizeof(*out));
F1AP_InitialULRRCMessageTransfer_t *container = &pdu->choice.initiatingMessage->value.choice.InitialULRRCMessageTransfer;
F1AP_InitialULRRCMessageTransferIEs_t *ie;
F1AP_LIB_FIND_IE(F1AP_InitialULRRCMessageTransferIEs_t, ie, container, F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID, true);
out->gNB_DU_ue_id = ie->value.choice.GNB_DU_UE_F1AP_ID;
F1AP_LIB_FIND_IE(F1AP_InitialULRRCMessageTransferIEs_t, ie, container, F1AP_ProtocolIE_ID_id_NRCGI, true);
PLMNID_TO_MCC_MNC(&ie->value.choice.NRCGI.pLMN_Identity, out->plmn.mcc, out->plmn.mnc, out->plmn.mnc_digit_length);
BIT_STRING_TO_NR_CELL_IDENTITY(&ie->value.choice.NRCGI.nRCellIdentity, out->nr_cellid);
F1AP_LIB_FIND_IE(F1AP_InitialULRRCMessageTransferIEs_t, ie, container, F1AP_ProtocolIE_ID_id_C_RNTI, true);
out->crnti = ie->value.choice.C_RNTI;
F1AP_LIB_FIND_IE(F1AP_InitialULRRCMessageTransferIEs_t, ie, container, F1AP_ProtocolIE_ID_id_RRCContainer, true);
out->rrc_container = cp_octet_string(&ie->value.choice.RRCContainer, &out->rrc_container_length);
F1AP_LIB_FIND_IE(F1AP_InitialULRRCMessageTransferIEs_t, ie, container, F1AP_ProtocolIE_ID_id_DUtoCURRCContainer, false);
if (ie != NULL)
out->du2cu_rrc_container = cp_octet_string(&ie->value.choice.DUtoCURRCContainer, &out->du2cu_rrc_container_length);
F1AP_LIB_FIND_IE(F1AP_InitialULRRCMessageTransferIEs_t, ie, container, F1AP_ProtocolIE_ID_id_TransactionID, true);
out->transaction_id = ie->value.choice.TransactionID;
return true;
}
/**
* @brief Initial UL RRC Message Transfer deep copy
*/
f1ap_initial_ul_rrc_message_t cp_initial_ul_rrc_message_transfer(const f1ap_initial_ul_rrc_message_t *msg)
{
uint8_t *rrc_container = calloc_or_fail(msg->rrc_container_length, sizeof(*rrc_container));
memcpy(rrc_container, msg->rrc_container, msg->rrc_container_length);
uint8_t *du2cu_rrc_container = NULL;
if (msg->du2cu_rrc_container_length > 0) {
DevAssert(msg->du2cu_rrc_container != NULL);
du2cu_rrc_container = calloc_or_fail(msg->du2cu_rrc_container_length, sizeof(*du2cu_rrc_container));
memcpy(du2cu_rrc_container, msg->du2cu_rrc_container, msg->du2cu_rrc_container_length);
}
f1ap_initial_ul_rrc_message_t cp = {
.gNB_DU_ue_id = msg->gNB_DU_ue_id,
.plmn = msg->plmn,
.nr_cellid = msg->nr_cellid,
.crnti = msg->crnti,
.rrc_container = rrc_container,
.rrc_container_length = msg->rrc_container_length,
.du2cu_rrc_container = du2cu_rrc_container,
.du2cu_rrc_container_length = msg->du2cu_rrc_container_length,
.transaction_id = msg->transaction_id
};
return cp;
}
/**
* @brief Initial UL RRC Message Transfer equality check
*/
bool eq_initial_ul_rrc_message_transfer(const f1ap_initial_ul_rrc_message_t *a, const f1ap_initial_ul_rrc_message_t *b)
{
_F1_EQ_CHECK_INT(a->gNB_DU_ue_id, b->gNB_DU_ue_id);
if (!eq_f1ap_plmn(&a->plmn, &b->plmn))
return false;
_F1_EQ_CHECK_LONG(a->nr_cellid, b->nr_cellid);
_F1_EQ_CHECK_INT(a->crnti, b->crnti);
_F1_EQ_CHECK_INT(a->rrc_container_length, b->rrc_container_length);
_F1_EQ_CHECK_LONG(a->nr_cellid, b->nr_cellid);
if (memcmp(a->rrc_container, b->rrc_container, a->rrc_container_length) != 0)
return false;
_F1_EQ_CHECK_INT(a->du2cu_rrc_container_length, b->du2cu_rrc_container_length);
if (memcmp(a->du2cu_rrc_container, b->du2cu_rrc_container, a->du2cu_rrc_container_length) != 0)
return false;
_F1_EQ_CHECK_INT(a->transaction_id, b->transaction_id);
return true;
}
/**
* @brief Initial UL RRC Message Transfer memory management
*/
void free_initial_ul_rrc_message_transfer(f1ap_initial_ul_rrc_message_t *msg)
{
DevAssert(msg != NULL);
free(msg->rrc_container);
free(msg->du2cu_rrc_container);
}
openair2/F1AP/lib/f1ap_rrc_message_transfer.h
+36
View File
@@ -0,0 +1,36 @@
/*
* 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
*/
#ifndef F1AP_RRC_MESSAGE_TRANSFER_H_
#define F1AP_RRC_MESSAGE_TRANSFER_H_
#include <stdbool.h>
#include "f1ap_messages_types.h"
struct F1AP_F1AP_PDU;
struct F1AP_F1AP_PDU *encode_initial_ul_rrc_message_transfer(const f1ap_initial_ul_rrc_message_t *msg);
bool decode_initial_ul_rrc_message_transfer(const struct F1AP_F1AP_PDU *pdu, f1ap_initial_ul_rrc_message_t *out);
f1ap_initial_ul_rrc_message_t cp_initial_ul_rrc_message_transfer(const f1ap_initial_ul_rrc_message_t *msg);
bool eq_initial_ul_rrc_message_transfer(const f1ap_initial_ul_rrc_message_t *a, const f1ap_initial_ul_rrc_message_t *b);
void free_initial_ul_rrc_message_transfer(f1ap_initial_ul_rrc_message_t *msg);
#endif /* F1AP_RRC_MESSAGE_TRANSFER_H_ */
openair2/F1AP/tests/f1ap_lib_test.c
+42
View File
@@ -7,6 +7,8 @@
#include "f1ap_messages_types.h"
#include "F1AP_F1AP-PDU.h"
#include "f1ap_lib_extern.h"
void exit_function(const char *file, const char *function, const int line, const char *s, const int assert)
{
printf("detected error at %s:%d:%s: %s\n", file, line, function, s);
@@ -41,7 +43,47 @@ static void f1ap_msg_free(F1AP_F1AP_PDU_t *pdu)
ASN_STRUCT_FREE(asn_DEF_F1AP_F1AP_PDU, pdu);
}
/**
* @brief Test Initial UL RRC Message Transfer encoding/decoding
*/
static void test_initial_ul_rrc_message_transfer(void)
{
f1ap_plmn_t plmn = { .mcc = 208, .mnc = 95, .mnc_digit_length = 2 };
uint8_t rrc[] = "RRC Container";
uint8_t du2cu[] = "DU2CU Container";
f1ap_initial_ul_rrc_message_t orig = {
.gNB_DU_ue_id = 12,
.plmn = plmn,
.nr_cellid = 135,
.crnti = 0x1234,
.rrc_container = rrc,
.rrc_container_length = sizeof(rrc),
.du2cu_rrc_container = du2cu,
.du2cu_rrc_container_length = sizeof(du2cu),
.transaction_id = 2,
};
F1AP_F1AP_PDU_t *f1enc = encode_initial_ul_rrc_message_transfer(&orig);
F1AP_F1AP_PDU_t *f1dec = f1ap_encode_decode(f1enc);
f1ap_msg_free(f1enc);
f1ap_initial_ul_rrc_message_t decoded;
bool ret = decode_initial_ul_rrc_message_transfer(f1dec, &decoded);
AssertFatal(ret, "decode_initial_ul_rrc_message_transfer(): could not decode message\n");
f1ap_msg_free(f1dec);
ret = eq_initial_ul_rrc_message_transfer(&orig, &decoded);
AssertFatal(ret, "eq_initial_ul_rrc_message_transfer(): decoded message doesn't match\n");
free_initial_ul_rrc_message_transfer(&decoded);
f1ap_initial_ul_rrc_message_t cp = cp_initial_ul_rrc_message_transfer(&orig);
ret = eq_initial_ul_rrc_message_transfer(&orig, &cp);
AssertFatal(ret, "eq_initial_ul_rrc_message_transfer(): copied message doesn't match\n");
free_initial_ul_rrc_message_transfer(&cp);
}
int main()
{
test_initial_ul_rrc_message_transfer();
return 0;
}