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Add enc/dec lib for Bearer Context Setup Failure

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This commit is contained in:
Guido Casati
2025-04-30 11:06:35 +02:00
parent acb982d0bd
commit be7e52b679
3 changed files with 130 additions and 0 deletions
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openair2/COMMON/e1ap_messages_types.h
+10
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@@ -478,6 +478,16 @@ typedef struct e1ap_bearer_setup_req_s {
pdu_session_to_setup_t pduSession[E1AP_MAX_NUM_PDU_SESSIONS];
} e1ap_bearer_setup_req_t;
/** Bearer Context Setup Failure (9.2.2.3 3GPP TS 38.463) */
typedef struct e1ap_bearer_context_setup_failure_s {
// gNB-CU-CP UE E1AP ID (M)
uint32_t gNB_cu_cp_ue_id;
// gNB-CU-UP UE E1AP ID (O)
uint32_t *gNB_cu_up_ue_id;
// Cause (M)
e1ap_cause_t cause;
} e1ap_bearer_context_setup_failure_t;
/**
* Bearer Context Modification Request, clause 9.2.2.4 of 3GPP TS 38.463
*/
openair2/E1AP/lib/e1ap_bearer_context_management.c
+114
View File
@@ -1075,6 +1075,120 @@ void free_e1ap_context_setup_response(const e1ap_bearer_setup_resp_t *msg)
// Do nothing (no dynamic allocation)
}
/* =====================================
* E1AP Bearer Context Setup Failure
* ===================================== */
/**
* @brief Bearer Context Setup Failure encoding (9.2.2.3, 3GPP TS 38.463)
* gNB-CU-UP → gNB-CU-CP
*/
E1AP_E1AP_PDU_t *encode_E1_bearer_context_setup_failure(const e1ap_bearer_context_setup_failure_t *msg)
{
E1AP_E1AP_PDU_t *pdu = calloc_or_fail(1, sizeof(*pdu));
pdu->present = E1AP_E1AP_PDU_PR_unsuccessfulOutcome;
// Type (M)
asn1cCalloc(pdu->choice.unsuccessfulOutcome, type);
type->procedureCode = E1AP_ProcedureCode_id_bearerContextSetup;
type->criticality = E1AP_Criticality_reject;
type->value.present = E1AP_UnsuccessfulOutcome__value_PR_BearerContextSetupFailure;
E1AP_BearerContextSetupFailure_t *out = &pdu->choice.unsuccessfulOutcome->value.choice.BearerContextSetupFailure;
// gNB-CU-CP UE E1AP ID (M)
asn1cSequenceAdd(out->protocolIEs.list, E1AP_BearerContextSetupFailureIEs_t, ie1);
ie1->id = E1AP_ProtocolIE_ID_id_gNB_CU_CP_UE_E1AP_ID;
ie1->criticality = E1AP_Criticality_reject;
ie1->value.present = E1AP_BearerContextSetupFailureIEs__value_PR_GNB_CU_CP_UE_E1AP_ID;
ie1->value.choice.GNB_CU_CP_UE_E1AP_ID = msg->gNB_cu_cp_ue_id;
// gNB-CU-UP UE E1AP ID (O)
if (msg->gNB_cu_up_ue_id) {
asn1cSequenceAdd(out->protocolIEs.list, E1AP_BearerContextSetupFailureIEs_t, ie2);
ie2->id = E1AP_ProtocolIE_ID_id_gNB_CU_UP_UE_E1AP_ID;
ie2->criticality = E1AP_Criticality_reject;
ie2->value.present = E1AP_BearerContextSetupFailureIEs__value_PR_GNB_CU_UP_UE_E1AP_ID;
ie2->value.choice.GNB_CU_UP_UE_E1AP_ID = *msg->gNB_cu_up_ue_id;
}
// Cause (M)
asn1cSequenceAdd(out->protocolIEs.list, E1AP_BearerContextSetupFailureIEs_t, ie3);
ie3->id = E1AP_ProtocolIE_ID_id_Cause;
ie3->criticality = E1AP_Criticality_reject;
ie3->value.present = E1AP_BearerContextSetupFailureIEs__value_PR_Cause;
ie3->value.choice.Cause = e1_encode_cause_ie(&msg->cause);
return pdu;
}
/**
* @brief Bearer Context Setup Failure decoding (9.2.2.3, 3GPP TS 38.463)
* gNB-CU-UP → gNB-CU-CP
*/
bool decode_E1_bearer_context_setup_failure(e1ap_bearer_context_setup_failure_t *out, const E1AP_E1AP_PDU_t *pdu)
{
DevAssert(pdu != NULL);
_E1_EQ_CHECK_INT(pdu->present, E1AP_E1AP_PDU_PR_unsuccessfulOutcome);
E1AP_UnsuccessfulOutcome_t *type = pdu->choice.unsuccessfulOutcome;
_E1_EQ_CHECK_LONG(type->procedureCode, E1AP_ProcedureCode_id_bearerContextSetup);
_E1_EQ_CHECK_INT(type->value.present, E1AP_UnsuccessfulOutcome__value_PR_BearerContextSetupFailure);
const E1AP_BearerContextSetupFailure_t *in = &type->value.choice.BearerContextSetupFailure;
// Check mandatory IEs first
E1AP_BearerContextSetupFailureIEs_t *ie;
E1AP_LIB_FIND_IE(E1AP_BearerContextSetupFailureIEs_t, ie, in, E1AP_ProtocolIE_ID_id_gNB_CU_CP_UE_E1AP_ID, true);
E1AP_LIB_FIND_IE(E1AP_BearerContextSetupFailureIEs_t, ie, in, E1AP_ProtocolIE_ID_id_Cause, true);
for (int i = 0; i < in->protocolIEs.list.count; i++) {
ie = in->protocolIEs.list.array[i];
AssertFatal(ie != NULL, "in->protocolIEs.list.array[i] shall not be null");
switch (ie->id) {
case E1AP_ProtocolIE_ID_id_gNB_CU_CP_UE_E1AP_ID:
out->gNB_cu_cp_ue_id = ie->value.choice.GNB_CU_CP_UE_E1AP_ID;
break;
case E1AP_ProtocolIE_ID_id_gNB_CU_UP_UE_E1AP_ID:
out->gNB_cu_up_ue_id = malloc_or_fail(sizeof(*out->gNB_cu_up_ue_id));
*out->gNB_cu_up_ue_id = ie->value.choice.GNB_CU_UP_UE_E1AP_ID;
break;
case E1AP_ProtocolIE_ID_id_Cause:
out->cause = e1_decode_cause_ie(&ie->value.choice.Cause);
break;
default:
break;
}
}
return true;
}
/** @brief Bearer Context Setup Failure deep copy */
e1ap_bearer_context_setup_failure_t cp_bearer_context_setup_failure(const e1ap_bearer_context_setup_failure_t *msg)
{
// Shallow copy
e1ap_bearer_context_setup_failure_t cp = *msg;
if (msg->gNB_cu_up_ue_id) {
cp.gNB_cu_up_ue_id = malloc_or_fail(sizeof(*cp.gNB_cu_up_ue_id));
*cp.gNB_cu_up_ue_id = *msg->gNB_cu_up_ue_id;
}
return cp;
}
/** @brief Bearer Context Setup Failure equality check */
bool eq_bearer_context_setup_failure(const e1ap_bearer_context_setup_failure_t *a, const e1ap_bearer_context_setup_failure_t *b)
{
_E1_EQ_CHECK_INT(a->gNB_cu_cp_ue_id, b->gNB_cu_cp_ue_id);
_E1_EQ_CHECK_OPTIONAL_IE(a, b, gNB_cu_up_ue_id, _E1_EQ_CHECK_INT);
_E1_EQ_CHECK_INT(a->cause.type, b->cause.type);
_E1_EQ_CHECK_INT(a->cause.value, b->cause.value);
return true;
}
/** @brief Bearer Context Setup Failure equality check */
void free_e1_bearer_context_setup_failure(const e1ap_bearer_context_setup_failure_t *msg)
{
free(msg->gNB_cu_up_ue_id);
// do nothing
}
/* ============================================
* E1AP Bearer Context Modification Request
* ============================================ */
openair2/E1AP/lib/e1ap_bearer_context_management.h
+6
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@@ -40,6 +40,12 @@ void free_e1ap_context_setup_response(const e1ap_bearer_setup_resp_t *msg);
e1ap_bearer_setup_resp_t cp_bearer_context_setup_response(const e1ap_bearer_setup_resp_t *msg);
bool eq_bearer_context_setup_response(const e1ap_bearer_setup_resp_t *a, const e1ap_bearer_setup_resp_t *b);
struct E1AP_E1AP_PDU *encode_E1_bearer_context_setup_failure(const e1ap_bearer_context_setup_failure_t *msg);
bool decode_E1_bearer_context_setup_failure(e1ap_bearer_context_setup_failure_t *out, const struct E1AP_E1AP_PDU *pdu);
e1ap_bearer_context_setup_failure_t cp_bearer_context_setup_failure(const e1ap_bearer_context_setup_failure_t *msg);
bool eq_bearer_context_setup_failure(const e1ap_bearer_context_setup_failure_t *a, const e1ap_bearer_context_setup_failure_t *b);
void free_e1_bearer_context_setup_failure(const e1ap_bearer_context_setup_failure_t *msg);
struct E1AP_E1AP_PDU *encode_E1_bearer_context_mod_request(const e1ap_bearer_mod_req_t *msg);
bool decode_E1_bearer_context_mod_request(const struct E1AP_E1AP_PDU *pdu, e1ap_bearer_mod_req_t *out);
void free_e1ap_context_mod_request(const e1ap_bearer_mod_req_t *msg);