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Introduce handler/callback for Bearer Context Setup Failure in stack

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This commit does not introduce the callback on the CU-UP to trigger
a Bearer Context Setup Failure when the setup of the bearer context was unsuccessful.
This should be handled properly in the stack e.g. in e1_bearer_context_setup (a comment
in the code says "We assume all DRBs to setup have been setup successfully, so we always
send successful outcome in response and no failed DRBs")
This commit is contained in:
Guido Casati
2025-04-30 11:57:12 +02:00
parent 606b9832af
commit 9311931e90
4 changed files with 43 additions and 5 deletions
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openair2/E1AP/e1ap.c
+25 -5
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@@ -386,10 +386,10 @@ void e1apCUUP_send_BEARER_CONTEXT_SETUP_RESPONSE(sctp_assoc_t assoc_id, const e1
e1ap_encode_send(UPtype, assoc_id, pdu, 0, __func__);
}
int e1apCUUP_send_BEARER_CONTEXT_SETUP_FAILURE(instance_t instance)
static void e1apCUUP_send_BEARER_CONTEXT_SETUP_FAILURE(sctp_assoc_t assoc_id, const e1ap_bearer_context_setup_failure_t *msg)
{
AssertFatal(false, "Not implemented yet\n");
return -1;
E1AP_E1AP_PDU_t *pdu = encode_E1_bearer_context_setup_failure(msg);
e1ap_encode_send(UPtype, assoc_id, pdu, 0, __func__);
}
int e1apCUUP_handle_BEARER_CONTEXT_SETUP_REQUEST(sctp_assoc_t assoc_id, e1ap_upcp_inst_t *e1_inst, const E1AP_E1AP_PDU_t *pdu)
@@ -423,8 +423,20 @@ int e1apCUCP_handle_BEARER_CONTEXT_SETUP_RESPONSE(sctp_assoc_t assoc_id, e1ap_up
int e1apCUCP_handle_BEARER_CONTEXT_SETUP_FAILURE(sctp_assoc_t assoc_id, e1ap_upcp_inst_t *inst, const E1AP_E1AP_PDU_t *pdu)
{
AssertFatal(false, "Not implemented yet\n");
return -1;
e1ap_bearer_context_setup_failure_t fail = {0};
if (!decode_E1_bearer_context_setup_failure(&fail, pdu)) {
LOG_E(E1AP, "Failed to decode Bearer Context Setup Failure\n");
free_e1_bearer_context_setup_failure(&fail);
return -1;
}
LOG_E(E1AP, "Received Bearer Context Setup Failure with cause value%d \n", fail.cause.value);
MessageDef *msg = itti_alloc_new_message(TASK_CUCP_E1, 0, E1AP_BEARER_CONTEXT_SETUP_FAILURE);
E1AP_BEARER_CONTEXT_SETUP_FAILURE(msg) = fail;
msg->ittiMsgHeader.originInstance = assoc_id;
instance_t instance = 0;
itti_send_msg_to_task(TASK_RRC_GNB, instance, msg);
return 0;
}
static void e1apCUCP_send_BEARER_CONTEXT_MODIFICATION_REQUEST(sctp_assoc_t assoc_id, e1ap_bearer_mod_req_t *const bearerCxt)
@@ -1028,6 +1040,14 @@ void *E1AP_CUUP_task(void *arg)
free_e1ap_context_setup_response(resp);
} break;
case E1AP_BEARER_CONTEXT_SETUP_FAILURE: {
const e1ap_bearer_context_setup_failure_t *fail = &E1AP_BEARER_CONTEXT_SETUP_FAILURE(msg);
const e1ap_upcp_inst_t *inst = getCxtE1(myInstance);
AssertFatal(inst, "no E1 instance found for instance %ld\n", myInstance);
e1apCUUP_send_BEARER_CONTEXT_SETUP_FAILURE(inst->cuup.assoc_id, fail);
free_e1_bearer_context_setup_failure(fail);
} break;
case E1AP_BEARER_CONTEXT_MODIFICATION_RESP: {
const e1ap_bearer_modif_resp_t *resp = &E1AP_BEARER_CONTEXT_MODIFICATION_RESP(msg);
const e1ap_upcp_inst_t *inst = getCxtE1(myInstance);