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Add F1AP UE context release request message enc/dec + test

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See commit "Add F1AP UE context setup request message enc/dec + test"
for more details on the approach taken.
This commit is contained in:
Robert Schmidt
2025-06-28 12:19:57 +02:00
parent 4d08801e9a
commit d13c94457a
4 changed files with 157 additions and 0 deletions
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openair2/COMMON/f1ap_messages_types.h
+7
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@@ -649,6 +649,13 @@ typedef struct f1ap_ue_context_modif_refuse_t {
long cause_value;
} f1ap_ue_context_modif_refuse_t;
typedef struct f1ap_ue_context_rel_req_t {
uint32_t gNB_CU_ue_id;
uint32_t gNB_DU_ue_id;
f1ap_Cause_t cause;
long cause_value;
} f1ap_ue_context_rel_req_t;
typedef struct f1ap_ue_context_release_s {
uint32_t gNB_CU_ue_id;
uint32_t gNB_DU_ue_id;
openair2/F1AP/lib/f1ap_ue_context.c
+112
View File
@@ -2087,3 +2087,115 @@ void free_ue_context_mod_resp(f1ap_ue_context_mod_resp_t *resp)
free_srb_setup(&resp->srbs[i]);
free(resp->srbs);
}
/*
* @brief Encode F1 UE context release request to ASN.1
*/
struct F1AP_F1AP_PDU *encode_ue_context_rel_req(const f1ap_ue_context_rel_req_t *msg)
{
F1AP_F1AP_PDU_t *pdu = calloc_or_fail(1, sizeof(*pdu));
/* Message Type */
pdu->present = F1AP_F1AP_PDU_PR_initiatingMessage;
asn1cCalloc(pdu->choice.initiatingMessage, tmp);
tmp->procedureCode = F1AP_ProcedureCode_id_UEContextReleaseRequest;
tmp->criticality = F1AP_Criticality_reject;
tmp->value.present = F1AP_InitiatingMessage__value_PR_UEContextReleaseRequest;
F1AP_UEContextReleaseRequest_t *out = &tmp->value.choice.UEContextReleaseRequest;
/* mandatory: GNB_CU_UE_F1AP_ID */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_UEContextReleaseRequestIEs_t, ie1);
ie1->id = F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
ie1->criticality = F1AP_Criticality_reject;
ie1->value.present = F1AP_UEContextReleaseRequestIEs__value_PR_GNB_CU_UE_F1AP_ID;
ie1->value.choice.GNB_CU_UE_F1AP_ID = msg->gNB_CU_ue_id;
/* mandatory: GNB_DU_UE_F1AP_ID */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_UEContextReleaseRequestIEs_t, ie2);
ie2->id = F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
ie2->criticality = F1AP_Criticality_reject;
ie2->value.present = F1AP_UEContextReleaseRequestIEs__value_PR_GNB_DU_UE_F1AP_ID;
ie2->value.choice.GNB_DU_UE_F1AP_ID = msg->gNB_DU_ue_id;
/* mandatory: Cause */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_UEContextReleaseRequestIEs_t, ie3);
ie3->id = F1AP_ProtocolIE_ID_id_Cause;
ie3->criticality = F1AP_Criticality_ignore;
ie3->value.present = F1AP_UEContextReleaseRequestIEs__value_PR_Cause;
ie3->value.choice.Cause = encode_f1ap_cause(msg->cause, msg->cause_value);
return pdu;
}
/**
* @brief Decode F1 UE Context Release Request
*/
bool decode_ue_context_rel_req(const struct F1AP_F1AP_PDU *pdu, f1ap_ue_context_rel_req_t *out)
{
DevAssert(out != NULL);
memset(out, 0, sizeof(*out));
F1AP_UEContextReleaseRequest_t *in = &pdu->choice.initiatingMessage->value.choice.UEContextReleaseRequest;
F1AP_UEContextReleaseRequestIEs_t *ie;
F1AP_LIB_FIND_IE(F1AP_UEContextReleaseRequestIEs_t, ie, &in->protocolIEs.list, F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID, true);
F1AP_LIB_FIND_IE(F1AP_UEContextReleaseRequestIEs_t, ie, &in->protocolIEs.list, F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID, true);
F1AP_LIB_FIND_IE(F1AP_UEContextReleaseRequestIEs_t, ie, &in->protocolIEs.list, F1AP_ProtocolIE_ID_id_Cause, true);
for (int i = 0; i < in->protocolIEs.list.count; ++i) {
ie = in->protocolIEs.list.array[i];
AssertError(ie != NULL, return false, "in->protocolIEs.list.array[i] is NULL");
switch (ie->id) {
case F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
_F1_EQ_CHECK_INT(ie->value.present, F1AP_UEContextReleaseRequestIEs__value_PR_GNB_CU_UE_F1AP_ID);
out->gNB_CU_ue_id = ie->value.choice.GNB_CU_UE_F1AP_ID;
break;
case F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
_F1_EQ_CHECK_INT(ie->value.present, F1AP_UEContextReleaseRequestIEs__value_PR_GNB_DU_UE_F1AP_ID);
out->gNB_DU_ue_id = ie->value.choice.GNB_DU_UE_F1AP_ID;
break;
case F1AP_ProtocolIE_ID_id_Cause:
_F1_EQ_CHECK_INT(ie->value.present, F1AP_UEContextReleaseRequestIEs__value_PR_Cause);
_F1_CHECK_EXP(decode_f1ap_cause(ie->value.choice.Cause, &out->cause, &out->cause_value));
break;
default:
PRINT_ERROR("F1AP_ProtocolIE_ID_id %ld unknown, skipping\n", ie->id);
break;
}
}
return true;
}
/**
* @brief F1 UE Context Release Request deep copy
*/
f1ap_ue_context_rel_req_t cp_ue_context_rel_req(const f1ap_ue_context_rel_req_t *orig)
{
f1ap_ue_context_rel_req_t cp = {
.gNB_CU_ue_id = orig->gNB_CU_ue_id,
.gNB_DU_ue_id = orig->gNB_DU_ue_id,
.cause = orig->cause,
.cause_value = orig->cause_value,
};
return cp;
}
/**
* @brief F1 UE Context Release Request equality check
*/
bool eq_ue_context_rel_req(const f1ap_ue_context_rel_req_t *a, const f1ap_ue_context_rel_req_t *b)
{
_F1_EQ_CHECK_INT(a->gNB_CU_ue_id, b->gNB_CU_ue_id);
_F1_EQ_CHECK_INT(a->gNB_DU_ue_id, b->gNB_DU_ue_id);
_F1_EQ_CHECK_INT(a->cause, b->cause);
_F1_EQ_CHECK_LONG(a->cause_value, b->cause_value);
return true;
}
/**
* @brief Free Allocated F1 UE Context Release Request
*/
void free_ue_context_rel_req(f1ap_ue_context_rel_req_t *req)
{
// nothing to free
}
openair2/F1AP/lib/f1ap_ue_context.h
+6
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@@ -51,4 +51,10 @@ f1ap_ue_context_mod_resp_t cp_ue_context_mod_resp(const f1ap_ue_context_mod_resp
bool eq_ue_context_mod_resp(const f1ap_ue_context_mod_resp_t *a, const f1ap_ue_context_mod_resp_t *b);
void free_ue_context_mod_resp(f1ap_ue_context_mod_resp_t *resp);
struct F1AP_F1AP_PDU *encode_ue_context_rel_req(const f1ap_ue_context_rel_req_t *msg);
bool decode_ue_context_rel_req(const struct F1AP_F1AP_PDU *pdu, f1ap_ue_context_rel_req_t *out);
f1ap_ue_context_rel_req_t cp_ue_context_rel_req(const f1ap_ue_context_rel_req_t *orig);
bool eq_ue_context_rel_req(const f1ap_ue_context_rel_req_t *a, const f1ap_ue_context_rel_req_t *b);
void free_ue_context_rel_req(f1ap_ue_context_rel_req_t *req);
#endif /* F1AP_UE_CONTEXT_SETUP_REQ_H_ */
openair2/F1AP/tests/f1ap_lib_test.c
+32
View File
@@ -1171,6 +1171,37 @@ static void test_f1ap_ue_context_modification_response_simple()
printf("%s() successful\n", __func__);
}
static void test_f1ap_ue_context_release_request()
{
f1ap_ue_context_rel_req_t orig = {
.gNB_CU_ue_id = 1111,
.gNB_DU_ue_id = 2222,
.cause = F1AP_CAUSE_MISC,
.cause_value = 3,
};
F1AP_F1AP_PDU_t *f1enc = encode_ue_context_rel_req(&orig);
F1AP_F1AP_PDU_t *f1dec = f1ap_encode_decode(f1enc);
f1ap_msg_free(f1enc);
f1ap_ue_context_rel_req_t decoded = {0};
bool ret = decode_ue_context_rel_req(f1dec, &decoded);
AssertFatal(ret, "decode_ue_context_rel_req(): could not decode message\n");
f1ap_msg_free(f1dec);
ret = eq_ue_context_rel_req(&orig, &decoded);
AssertFatal(ret, "eq_ue_context_rel_req(): decoded message doesn't match\n");
free_ue_context_rel_req(&decoded);
f1ap_ue_context_rel_req_t cp = cp_ue_context_rel_req(&orig);
ret = eq_ue_context_rel_req(&orig, &cp);
AssertFatal(ret, "eq_ue_context_rel_req(): copied message doesn't match\n");
free_ue_context_rel_req(&orig);
free_ue_context_rel_req(&cp);
printf("%s() successful\n", __func__);
}
int main()
{
test_initial_ul_rrc_message_transfer();
@@ -1194,5 +1225,6 @@ int main()
test_f1ap_ue_context_modification_request_simple();
test_f1ap_ue_context_modification_response();
test_f1ap_ue_context_modification_response_simple();
test_f1ap_ue_context_release_request();
return 0;
}