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implement RRC release

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This commit is contained in:
He Shanyun
2020-09-24 01:33:53 +00:00
parent 49eb710850
commit 966569c119
3 changed files with 92 additions and 1 deletions
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openair2/RRC/NR/MESSAGES/asn1_msg.c
+28
View File
@@ -786,10 +786,14 @@ uint8_t do_NR_SecurityModeCommand(
asn_enc_rval_t enc_rval;
memset(&dl_dcch_msg,0,sizeof(NR_DL_DCCH_Message_t));
dl_dcch_msg.message.present = NR_DL_DCCH_MessageType_PR_c1;
dl_dcch_msg.message.choice.c1=CALLOC(1,sizeof(struct NR_DL_DCCH_MessageType__c1));
dl_dcch_msg.message.choice.c1->present = NR_DL_DCCH_MessageType__c1_PR_securityModeCommand;
dl_dcch_msg.message.choice.c1->choice.securityModeCommand = CALLOC(1, sizeof(struct NR_SecurityModeCommand));
dl_dcch_msg.message.choice.c1->choice.securityModeCommand->rrc_TransactionIdentifier = Transaction_id;
dl_dcch_msg.message.choice.c1->choice.securityModeCommand->criticalExtensions.present = NR_SecurityModeCommand__criticalExtensions_PR_securityModeCommand;
dl_dcch_msg.message.choice.c1->choice.securityModeCommand->criticalExtensions.choice.securityModeCommand =
CALLOC(1, sizeof(struct NR_SecurityModeCommand_IEs));
// the two following information could be based on the mod_id
dl_dcch_msg.message.choice.c1->choice.securityModeCommand->criticalExtensions.choice.securityModeCommand->securityConfigSMC.securityAlgorithmConfig.cipheringAlgorithm
= (NR_CipheringAlgorithm_t)cipheringAlgorithm;
@@ -932,3 +936,27 @@ uint8_t do_NR_UECapabilityEnquiry_nr( const protocol_ctxt_t *const ctxt_pP,
return((enc_rval.encoded+7)/8);
}
uint8_t do_NR_RRCConnectionRelease(uint8_t *buffer,
uint8_t Transaction_id) {
asn_enc_rval_t enc_rval;
NR_DL_DCCH_Message_t dl_dcch_msg;
NR_RRCRelease_t *rrcConnectionRelease;
memset(&dl_dcch_msg,0,sizeof(NR_DL_DCCH_Message_t));
dl_dcch_msg.message.present = NR_DL_DCCH_MessageType_PR_c1;
dl_dcch_msg.message.choice.c1=CALLOC(1,sizeof(struct NR_DL_DCCH_MessageType__c1));
dl_dcch_msg.message.choice.c1->present = NR_DL_DCCH_MessageType__c1_PR_rrcRelease;
dl_dcch_msg.message.choice.c1->choice.rrcRelease = CALLOC(1, sizeof(struct NR_RRCRelease));
rrcConnectionRelease = dl_dcch_msg.message.choice.c1->choice.rrcRelease;
// RRCConnectionRelease
rrcConnectionRelease->rrc_TransactionIdentifier = Transaction_id;
rrcConnectionRelease->criticalExtensions.present = NR_RRCRelease__criticalExtensions_PR_rrcRelease;
rrcConnectionRelease->criticalExtensions.choice.rrcRelease = NULL;
enc_rval = uper_encode_to_buffer(&asn_DEF_NR_DL_DCCH_Message,
NULL,
(void *)&dl_dcch_msg,
buffer,
RRC_BUF_SIZE);
return((enc_rval.encoded+7)/8);
}
openair2/RRC/NR/MESSAGES/asn1_msg.h
+3
View File
@@ -98,3 +98,6 @@ uint8_t do_NR_SecurityModeCommand(
const uint8_t Transaction_id,
const uint8_t cipheringAlgorithm,
NR_IntegrityProtAlgorithm_t *integrityProtAlgorithm);
uint8_t do_NR_RRCConnectionRelease(uint8_t *buffer,
uint8_t Transaction_id);
openair2/RRC/NR/rrc_gNB.c
+61 -1
View File
@@ -1097,7 +1097,7 @@ rrc_gNB_generate_SecurityModeCommand(
size = do_NR_SecurityModeCommand(
ctxt_pP,
buffer,
rrc_eNB_get_next_transaction_identifier(ctxt_pP->module_id),
rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id),
ue_context_pP->ue_context.ciphering_algorithm,
&integrity_algorithm);
LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)buffer,size,"[MSG] RRC Security Mode Command\n");
@@ -1176,3 +1176,63 @@ rrc_gNB_generate_UECapabilityEnquiry(
buffer,
PDCP_TRANSMISSION_MODE_CONTROL);
}
//-----------------------------------------------------------------------------
/*
* Generate the RRC Connection Release to UE.
* If received, UE should switch to RRC_IDLE mode.
*/
void
rrc_gNB_generate_RRCConnectionRelease(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *const ue_context_pP
)
//-----------------------------------------------------------------------------
{
uint8_t buffer[RRC_BUF_SIZE];
uint16_t size = 0;
memset(buffer, 0, RRC_BUF_SIZE);
size = do_NR_RRCConnectionRelease(buffer,rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id));
ue_context_pP->ue_context.ue_reestablishment_timer = 0;
ue_context_pP->ue_context.ue_release_timer = 0;
LOG_I(NR_RRC,
PROTOCOL_RRC_CTXT_UE_FMT" Logical Channel DL-DCCH, Generate RRCConnectionRelease (bytes %d)\n",
PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP),
size);
LOG_D(NR_RRC,
PROTOCOL_RRC_CTXT_UE_FMT" --- PDCP_DATA_REQ/%d Bytes (rrcConnectionRelease MUI %d) --->[PDCP][RB %u]\n",
PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP),
size,
rrc_gNB_mui,
DCCH);
MSC_LOG_TX_MESSAGE(
MSC_RRC_GNB,
MSC_RRC_UE,
buffer,
size,
MSC_AS_TIME_FMT" LTE_RRCConnectionRelease UE %x MUI %d size %u",
MSC_AS_TIME_ARGS(ctxt_pP),
ue_context_pP->ue_context.rnti,
rrc_gNB_mui,
size);
if (NODE_IS_CU(RC.rrc[ctxt_pP->module_id]->node_type)) {
MessageDef *m = itti_alloc_new_message(TASK_RRC_ENB, F1AP_UE_CONTEXT_RELEASE_CMD);
F1AP_UE_CONTEXT_RELEASE_CMD(m).rnti = ctxt_pP->rnti;
F1AP_UE_CONTEXT_RELEASE_CMD(m).cause = F1AP_CAUSE_RADIO_NETWORK;
F1AP_UE_CONTEXT_RELEASE_CMD(m).cause_value = 10; // 10 = F1AP_CauseRadioNetwork_normal_release
F1AP_UE_CONTEXT_RELEASE_CMD(m).rrc_container = buffer;
F1AP_UE_CONTEXT_RELEASE_CMD(m).rrc_container_length = size;
itti_send_msg_to_task(TASK_CU_F1, ctxt_pP->module_id, m);
} else {
rrc_data_req(ctxt_pP,
DCCH,
rrc_gNB_mui++,
SDU_CONFIRM_NO,
size,
buffer,
PDCP_TRANSMISSION_MODE_CONTROL);
}
}