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Always send release request at RRC

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It might happen that the RRC does not know the AMF UE NGAP ID, yet. Even
in that case, we should forward the release request to the NGAP module,
which can either forward a message to the AMF, or reply back to release
the UE.

Reported-By: Jegor Zelenjak <jzelenjak@proton.me>
This commit is contained in:
Robert Schmidt
2026-01-13 11:53:42 +01:00
parent 699a5453a0
commit c003096176
1 changed files with 2 additions and 4 deletions
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openair2/RRC/NR/rrc_gNB.c
+2 -4
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@@ -2440,10 +2440,8 @@ static void rrc_CU_process_ue_context_release_request(MessageDef *msg_p, sctp_as
gNB_RRC_INST *rrc = RC.nrrrc[instance]; gNB_RRC_INST *rrc = RC.nrrrc[instance];
rrc_gNB_ue_context_t *ue_context_p = rrc_gNB_get_ue_context(rrc, req->gNB_CU_ue_id); rrc_gNB_ue_context_t *ue_context_p = rrc_gNB_get_ue_context(rrc, req->gNB_CU_ue_id);
int srbid = 1; int srbid = 1;
// valid AMF UE NGAP ID range is 0..2^40-1 if (!ue_context_p) {
if (!ue_context_p || ue_context_p->ue_context.amf_ue_ngap_id >= (1LL << 40)) { LOG_W(RRC, "could not find UE context for CU UE ID %u: auto-generate release command\n", req->gNB_CU_ue_id);
const char *reason = !ue_context_p ? "could not find UE context" : "no AMF";
LOG_W(RRC, "%s for CU UE ID %u: auto-generate release command\n", reason, req->gNB_CU_ue_id);
uint8_t buffer[NR_RRC_BUF_SIZE] = {0}; uint8_t buffer[NR_RRC_BUF_SIZE] = {0};
int size = do_NR_RRCRelease(buffer, NR_RRC_BUF_SIZE, rrc_gNB_get_next_transaction_identifier(0)); int size = do_NR_RRCRelease(buffer, NR_RRC_BUF_SIZE, rrc_gNB_get_next_transaction_identifier(0));
RETURN_IF_INVALID_ASSOC_ID(assoc_id); RETURN_IF_INVALID_ASSOC_ID(assoc_id);