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add NGAP UE CONTEXT RELEASE MESSAGE

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This commit is contained in:
yaojie
2020-11-18 18:33:58 +09:00
parent 959681424c
commit f8f489ec22
3 changed files with 197 additions and 0 deletions
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openair2/RRC/NR/rrc_gNB.c
+8
View File
@@ -1448,6 +1448,14 @@ void *rrc_gnb_task(void *args_p) {
rrc_gNB_process_NGAP_INITIAL_CONTEXT_SETUP_REQ(msg_p, msg_name_p, instance);
break;
case NGAP_UE_CONTEXT_RELEASE_REQ:
rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_REQ(msg_p, msg_name_p, instance);
break;
case NGAP_UE_CONTEXT_RELEASE_COMMAND:
rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_COMMAND(msg_p, msg_name_p, instance);
break;
default:
LOG_E(NR_RRC, "[gNB %d] Received unexpected message %s\n", instance, msg_name_p);
break;
openair2/RRC/NR/rrc_gNB_NGAP.c
+161
View File
@@ -946,3 +946,164 @@ rrc_gNB_process_NGAP_PDUSESSION_SETUP_REQ(
return(0);
}
}
void
rrc_gNB_send_NGAP_UE_CONTEXT_RELEASE_REQ(
const module_id_t gnb_mod_idP,
const rrc_gNB_ue_context_t *const ue_context_pP,
const ngap_Cause_t causeP,
const long cause_valueP)
//------------------------------------------------------------------------------
{
if (ue_context_pP == NULL) {
LOG_E(RRC, "[gNB] In NGAP_UE_CONTEXT_RELEASE_REQ: invalid UE\n");
} else {
MSC_LOG_TX_MESSAGE(MSC_RRC_GNB,
MSC_NGAP_GNB,
NULL,
0,
"0 NGAP_UE_CONTEXT_RELEASE_REQ gNB_ue_ngap_id 0x%06"PRIX32" ",
ue_context_pP->ue_context.gNB_ue_ngap_id);
MessageDef *msg_context_release_req_p = NULL;
msg_context_release_req_p = itti_alloc_new_message(TASK_RRC_GNB, NGAP_UE_CONTEXT_RELEASE_REQ);
NGAP_UE_CONTEXT_RELEASE_REQ(msg_context_release_req_p).gNB_ue_ngap_id = ue_context_pP->ue_context.gNB_ue_ngap_id;
NGAP_UE_CONTEXT_RELEASE_REQ(msg_context_release_req_p).cause = causeP;
NGAP_UE_CONTEXT_RELEASE_REQ(msg_context_release_req_p).cause_value = cause_valueP;
NGAP_UE_CONTEXT_RELEASE_REQ(msg_context_release_req_p).nb_of_pdusessions = ue_context_pP->ue_context.setup_pdu_sessions;
for (int pdusession = 0; pdusession < ue_context_pP->ue_context.setup_pdu_sessions; pdusession++) {
NGAP_UE_CONTEXT_RELEASE_REQ(msg_context_release_req_p).pdusessions[pdusession].pdusession_id = ue_context_pP->ue_context.pdusession[pdusession].param.pdusession_id;
}
itti_send_msg_to_task(TASK_NGAP, GNB_MODULE_ID_TO_INSTANCE(gnb_mod_idP), msg_context_release_req_p);
}
}
/*------------------------------------------------------------------------------*/
int
rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_REQ (
MessageDef *msg_p,
const char *msg_name,
instance_t instance)
{
uint32_t gNB_ue_ngap_id;
struct rrc_gNB_ue_context_s *ue_context_p = NULL;
gNB_ue_ngap_id = NGAP_UE_CONTEXT_RELEASE_REQ(msg_p).gNB_ue_ngap_id;
ue_context_p = rrc_gNB_get_ue_context_from_ngap_ids(instance, UE_INITIAL_ID_INVALID, gNB_ue_ngap_id);
if (ue_context_p == NULL) {
/* Can not associate this message to an UE index, send a failure to ngAP and discard it! */
MessageDef *msg_fail_p;
LOG_W(RRC, "[gNB %d] In NGAP_UE_CONTEXT_RELEASE_REQ: unknown UE from gNB_ue_ngap_id (%d)\n",
instance,
gNB_ue_ngap_id);
msg_fail_p = itti_alloc_new_message(TASK_RRC_GNB, NGAP_UE_CONTEXT_RELEASE_RESP); /* TODO change message ID. */
NGAP_UE_CONTEXT_RELEASE_RESP(msg_fail_p).gNB_ue_ngap_id = gNB_ue_ngap_id;
// TODO add failure cause when defined!
itti_send_msg_to_task(TASK_NGAP, instance, msg_fail_p);
return (-1);
} else {
/* TODO release context. */
/* Send the response */
{
MessageDef *msg_resp_p;
msg_resp_p = itti_alloc_new_message(TASK_RRC_GNB, NGAP_UE_CONTEXT_RELEASE_RESP);
NGAP_UE_CONTEXT_RELEASE_RESP(msg_resp_p).gNB_ue_ngap_id = gNB_ue_ngap_id;
itti_send_msg_to_task(TASK_NGAP, instance, msg_resp_p);
}
return (0);
}
}
//-----------------------------------------------------------------------------
/*
* Process the NG command NGAP_UE_CONTEXT_RELEASE_COMMAND, sent by AMF.
* The gNB should remove all pdu session, NG context, and other context of the UE.
*/
int
rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_COMMAND(
MessageDef *msg_p,
const char *msg_name,
instance_t instance) {
//-----------------------------------------------------------------------------
uint32_t gNB_ue_ngap_id = 0;
protocol_ctxt_t ctxt;
struct rrc_gNB_ue_context_s *ue_context_p = NULL;
struct rrc_ue_ngap_ids_s *rrc_ue_ngap_ids = NULL;
gNB_ue_ngap_id = NGAP_UE_CONTEXT_RELEASE_COMMAND(msg_p).gNB_ue_ngap_id;
ue_context_p = rrc_gNB_get_ue_context_from_ngap_ids(instance, UE_INITIAL_ID_INVALID, gNB_ue_ngap_id);
if (ue_context_p == NULL) {
/* Can not associate this message to an UE index */
MessageDef *msg_complete_p = NULL;
LOG_W(RRC, "[gNB %d] In NGAP_UE_CONTEXT_RELEASE_COMMAND: unknown UE from gNB_ue_ngap_id (%d)\n",
instance,
gNB_ue_ngap_id);
MSC_LOG_EVENT(MSC_RRC_GNB, "0 NGAP_UE_CONTEXT_RELEASE_COMPLETE gNB_ue_ngap_id 0x%06"PRIX32" context not found",
gNB_ue_ngap_id);
MSC_LOG_TX_MESSAGE(MSC_RRC_GNB,
MSC_NGAP_GNB,
NULL,
0,
"0 NGAP_UE_CONTEXT_RELEASE_COMPLETE gNB_ue_ngap_id 0x%06"PRIX32" ",
gNB_ue_ngap_id);
msg_complete_p = itti_alloc_new_message(TASK_RRC_GNB, NGAP_UE_CONTEXT_RELEASE_COMPLETE);
NGAP_UE_CONTEXT_RELEASE_COMPLETE(msg_complete_p).gNB_ue_ngap_id = gNB_ue_ngap_id;
itti_send_msg_to_task(TASK_NGAP, instance, msg_complete_p);
rrc_ue_ngap_ids = rrc_gNB_NGAP_get_ue_ids(RC.nrrrc[instance], UE_INITIAL_ID_INVALID, gNB_ue_ngap_id);
if (rrc_ue_ngap_ids != NULL) {
rrc_gNB_NGAP_remove_ue_ids(RC.nrrrc[instance], rrc_ue_ngap_ids);
}
return -1;
} else {
ue_context_p->ue_context.ue_release_timer_ng = 0;
PROTOCOL_CTXT_SET_BY_INSTANCE(&ctxt, instance, GNB_FLAG_YES, ue_context_p->ue_context.rnti, 0, 0);
rrc_gNB_generate_RRCRelease(&ctxt, ue_context_p);
return 0;
}
}
//------------------------------------------------------------------------------
/*
* Remove UE ids (ue_initial_id and ng_id) from hashtables.
*/
void
rrc_gNB_NGAP_remove_ue_ids(
gNB_RRC_INST *const rrc_instance_pP,
struct rrc_ue_ngap_ids_s *const ue_ids_pP
)
//------------------------------------------------------------------------------
{
hashtable_rc_t h_rc;
if (rrc_instance_pP == NULL) {
LOG_E(NR_RRC, "Bad NR RRC instance\n");
return;
}
if (ue_ids_pP == NULL) {
LOG_E(NR_RRC, "Trying to free a NULL NGAP UE IDs\n");
return;
}
const uint16_t ue_initial_id = ue_ids_pP->ue_initial_id;
const uint32_t gNB_ue_ngap_id = ue_ids_pP->gNB_ue_ngap_id;
if (gNB_ue_ngap_id > 0) {
h_rc = hashtable_remove(rrc_instance_pP->ngap_id2_ngap_ids, (hash_key_t)gNB_ue_ngap_id);
if (h_rc != HASH_TABLE_OK) {
LOG_W(NR_RRC, "NGAP Did not find entry in hashtable ngap_id2_ngap_ids for gNB_ue_ngap_id %u\n", gNB_ue_ngap_id);
} else {
LOG_W(NR_RRC, "NGAP removed entry in hashtable ngap_id2_ngap_ids for gNB_ue_ngap_id %u\n", gNB_ue_ngap_id);
}
}
if (ue_initial_id != UE_INITIAL_ID_INVALID) {
h_rc = hashtable_remove(rrc_instance_pP->initial_id2_ngap_ids, (hash_key_t)ue_initial_id);
if (h_rc != HASH_TABLE_OK) {
LOG_W(NR_RRC, "NGAP Did not find entry in hashtable initial_id2_ngap_ids for ue_initial_id %u\n", ue_initial_id);
} else {
LOG_W(NR_RRC, "NGAP removed entry in hashtable initial_id2_ngap_ids for ue_initial_id %u\n", ue_initial_id);
}
}
}
openair2/RRC/NR/rrc_gNB_NGAP.h
+28
View File
@@ -107,4 +107,32 @@ rrc_gNB_process_NGAP_PDUSESSION_SETUP_REQ(
instance_t instance
);
void
rrc_gNB_send_NGAP_UE_CONTEXT_RELEASE_REQ(
const module_id_t gnb_mod_idP,
const rrc_gNB_ue_context_t *const ue_context_pP,
const ngap_Cause_t causeP,
const long cause_valueP
);
int
rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_REQ (
MessageDef *msg_p,
const char *msg_name,
instance_t instance
);
int
rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_COMMAND(
MessageDef *msg_p,
const char *msg_name,
instance_t instance
);
void
rrc_gNB_NGAP_remove_ue_ids(
gNB_RRC_INST *const rrc_instance_pP,
struct rrc_ue_ngap_ids_s *const ue_ids_pP
);
#endif