Skip to content

O
OpenXG-RAN
Commit cdd58ab9 authored by Sakthivel Velumani's avatar Sakthivel Velumani
Browse files
Options

Moved DRB config out of RRCReconfig complete 

Monolithic and F1 split works
parent 61d66e49
Hide whitespace changes
Inline Side-by-side
Showing with 144 additions and 77 deletions
openair2/RRC/NR/rrc_gNB.c
View file @ cdd58ab9
......@@ -752,15 +752,9 @@ rrc_gNB_generate_defaultRRCReconfiguration(
}
}
//-----------------------------------------------------------------------------
void
rrc_gNB_generate_dedicatedRRCReconfiguration(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *ue_context_pP,
NR_CellGroupConfig_t *cell_groupConfig_from_DU
)
//-----------------------------------------------------------------------------
{
void fill_DRB_configList(const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *ue_context_pP) {
gNB_RRC_INST *rrc = RC.nrrrc[ctxt_pP->module_id];
NR_DRB_ToAddMod_t *DRB_config = NULL;
NR_SRB_ToAddMod_t *SRB2_config = NULL;
......@@ -769,18 +763,11 @@ rrc_gNB_generate_dedicatedRRCReconfiguration(
NR_DRB_ToAddModList_t **DRB_configList2 = NULL;
NR_SRB_ToAddModList_t **SRB_configList2 = NULL;
NR_SRB_ToAddModList_t *SRB_configList = ue_context_pP->ue_context.SRB_configList;
struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList
*dedicatedNAS_MessageList = NULL;
NR_DedicatedNAS_Message_t *dedicatedNAS_Message = NULL;
uint8_t buffer[RRC_BUF_SIZE];
uint16_t size;
int qos_flow_index = 0;
int pdu_sessions_done = 0;
int i;
uint8_t drb_id_to_setup_start = 1;
uint8_t nb_drb_to_setup = 0;
long drb_priority[1] = {13}; // For now, we assume only one drb per pdu sessions with a default preiority (will be dynamique in future)
NR_CellGroupConfig_t *cellGroupConfig = NULL;
uint8_t xid = rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id);
......@@ -809,8 +796,6 @@ rrc_gNB_generate_dedicatedRRCReconfiguration(
*DRB_configList2 = CALLOC(1, sizeof(**DRB_configList2));
memset(*DRB_configList2, 0, sizeof(**DRB_configList2));
dedicatedNAS_MessageList = CALLOC(1, sizeof(struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList));
for (i = 0; i < ue_context_pP->ue_context.setup_pdu_sessions; i++) {
if (pdu_sessions_done >= ue_context_pP->ue_context.nb_of_pdusessions) {
break;
......@@ -913,6 +898,36 @@ rrc_gNB_generate_dedicatedRRCReconfiguration(
ue_context_pP->ue_context.pduSession[i].status = PDU_SESSION_STATUS_DONE;
ue_context_pP->ue_context.pduSession[i].xid = xid;
}
}
//-----------------------------------------------------------------------------
void
rrc_gNB_generate_dedicatedRRCReconfiguration(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *ue_context_pP,
NR_CellGroupConfig_t *cell_groupConfig_from_DU
)
//-----------------------------------------------------------------------------
{
gNB_RRC_INST *rrc = RC.nrrrc[ctxt_pP->module_id];
long drb_priority[1] = {13}; // For now, we assume only one drb per pdu sessions with a default preiority (will be dynamique in future)
NR_CellGroupConfig_t *cellGroupConfig = NULL;
uint8_t buffer[RRC_BUF_SIZE];
uint16_t size;
int xid = -1;
int drb_id_to_setup_start = 1;
NR_DRB_ToAddModList_t *DRB_configList = ue_context_pP->ue_context.DRB_configList;
int nb_drb_to_setup = DRB_configList->list.count;
struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList *dedicatedNAS_MessageList = NULL;
NR_DedicatedNAS_Message_t *dedicatedNAS_Message = NULL;
dedicatedNAS_MessageList = CALLOC(1, sizeof(struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList));
for (int i=0; i < nb_drb_to_setup; i++) {
NR_DRB_ToAddMod_t *DRB_config = DRB_configList->list.array[i];
if (drb_id_to_setup_start == 1) drb_id_to_setup_start = DRB_config->drb_Identity;
if (ue_context_pP->ue_context.pduSession[i].param.nas_pdu.buffer != NULL) {
dedicatedNAS_Message = CALLOC(1, sizeof(NR_DedicatedNAS_Message_t));
......@@ -927,6 +942,8 @@ rrc_gNB_generate_dedicatedRRCReconfiguration(
// TODO
LOG_E(NR_RRC,"no NAS info (pdusession id %d)\n", i);
}
xid = ue_context_pP->ue_context.pduSession[i].xid;
}
/* If list is empty free the list and reset the address */
......@@ -947,10 +964,14 @@ rrc_gNB_generate_dedicatedRRCReconfiguration(
cellGroupConfig = cell_groupConfig_from_DU;
}
AssertFatal(xid > -1, "Invalid xid %d. No PDU sessions setup to configure.\n", xid);
NR_SRB_ToAddModList_t *SRB_configList2 = NULL;
SRB_configList2 = ue_context_pP->ue_context.SRB_configList2[xid];
size = do_RRCReconfiguration(ctxt_pP, buffer, sizeof(buffer),
xid,
*SRB_configList2,
*DRB_configList,
SRB_configList2,
DRB_configList,
NULL,
NULL,
NULL,
......@@ -964,7 +985,7 @@ rrc_gNB_generate_dedicatedRRCReconfiguration(
LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)buffer,size,"[MSG] RRC Reconfiguration\n");
/* Free all NAS PDUs */
for (i = 0; i < ue_context_pP->ue_context.nb_of_pdusessions; i++) {
for (int i = 0; i < ue_context_pP->ue_context.nb_of_pdusessions; i++) {
if (ue_context_pP->ue_context.pduSession[i].param.nas_pdu.buffer != NULL) {
/* Free the NAS PDU buffer and invalidate it */
free(ue_context_pP->ue_context.pduSession[i].param.nas_pdu.buffer);
......@@ -1289,65 +1310,105 @@ rrc_gNB_generate_dedicatedRRCReconfiguration_release(
}
}
//-----------------------------------------------------------------------------
/*
* Process the RRC Reconfiguration Complete from the UE
*/
void
rrc_gNB_process_RRCReconfigurationComplete(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *ue_context_pP,
const uint8_t xid
)
{
int drb_id;
uint8_t *kRRCenc = NULL;
uint8_t *kRRCint = NULL;
uint8_t *kUPenc = NULL;
uint8_t *kUPint = NULL;
NR_DRB_ToAddModList_t *DRB_configList = ue_context_pP->ue_context.DRB_configList2[xid];
NR_SRB_ToAddModList_t *SRB_configList = ue_context_pP->ue_context.SRB_configList2[xid];
NR_DRB_ToReleaseList_t *DRB_Release_configList2 = ue_context_pP->ue_context.DRB_Release_configList2[xid];
NR_DRB_Identity_t *drb_id_p = NULL;
// uint8_t nr_DRB2LCHAN[8];
int drb_config_gtpu_create(const protocol_ctxt_t *const ctxt_p,
rrc_gNB_ue_context_t *ue_context_p,
e1ap_bearer_setup_req_t *req,
NR_DRB_ToAddModList_t *DRB_configList,
NR_SRB_ToAddModList_t *SRB_configList,
instance_t instance) {
ue_context_pP->ue_context.ue_reestablishment_timer = 0;
gtpv1u_gnb_create_tunnel_req_t create_tunnel_req={0};
gtpv1u_gnb_create_tunnel_resp_t create_tunnel_resp={0};
for (int i=0; i < ue_context_p->ue_context.nb_of_pdusessions; i++) {
pdu_session_param_t *pdu = ue_context_p->ue_context.pduSession + i;
create_tunnel_req.pdusession_id[i] = pdu->param.pdusession_id;
create_tunnel_req.incoming_rb_id[i] = i + 1;
create_tunnel_req.outgoing_qfi[i] = req->pduSession[i].DRBnGRanList[0].qosFlows[0].id;
memcpy(&create_tunnel_req.dst_addr[i].buffer,
&pdu->param.upf_addr.buffer,
sizeof(uint8_t)*20);
create_tunnel_req.dst_addr[i].length = pdu->param.upf_addr.length;
create_tunnel_req.outgoing_teid[i] = pdu->param.gtp_teid;
}
create_tunnel_req.num_tunnels = ue_context_p->ue_context.nb_of_pdusessions;
create_tunnel_req.ue_id = ue_context_p->ue_context.rnti;
int ret = gtpv1u_create_ngu_tunnel(instance,
&create_tunnel_req,
&create_tunnel_resp);
if (ret != 0) {
LOG_E(NR_RRC,"rrc_gNB_process_NGAP_PDUSESSION_SETUP_REQ : gtpv1u_create_ngu_tunnel failed,start to release UE rnti %ld\n",
create_tunnel_req.ue_id);
return ret;
}
nr_rrc_gNB_process_GTPV1U_CREATE_TUNNEL_RESP(ctxt_p,
&create_tunnel_resp);
uint8_t *kRRCenc = NULL;
uint8_t *kRRCint = NULL;
uint8_t *kUPenc = NULL;
uint8_t *kUPint = NULL;
/* Derive the keys from kgnb */
if (DRB_configList != NULL) {
nr_derive_key_up_enc(ue_context_pP->ue_context.ciphering_algorithm,
ue_context_pP->ue_context.kgnb,
nr_derive_key_up_enc(ue_context_p->ue_context.ciphering_algorithm,
ue_context_p->ue_context.kgnb,
&kUPenc);
nr_derive_key_up_int(ue_context_pP->ue_context.integrity_algorithm,
ue_context_pP->ue_context.kgnb,
nr_derive_key_up_int(ue_context_p->ue_context.integrity_algorithm,
ue_context_p->ue_context.kgnb,
&kUPint);
}
nr_derive_key_rrc_enc(ue_context_pP->ue_context.ciphering_algorithm,
ue_context_pP->ue_context.kgnb,
nr_derive_key_rrc_enc(ue_context_p->ue_context.ciphering_algorithm,
ue_context_p->ue_context.kgnb,
&kRRCenc);
nr_derive_key_rrc_int(ue_context_pP->ue_context.integrity_algorithm,
ue_context_pP->ue_context.kgnb,
nr_derive_key_rrc_int(ue_context_p->ue_context.integrity_algorithm,
ue_context_p->ue_context.kgnb,
&kRRCint);
/* Refresh SRBs/DRBs */
LOG_D(NR_RRC,"Configuring PDCP DRBs/SRBs for UE %x\n",ue_context_pP->ue_context.rnti);
LOG_D(NR_RRC,"Configuring PDCP DRBs/SRBs for UE %x\n",ue_context_p->ue_context.rnti);
nr_pdcp_add_srbs(ctxt_pP->enb_flag, ctxt_pP->rnti,
nr_pdcp_add_srbs(ctxt_p->enb_flag, ctxt_p->rnti,
SRB_configList,
(ue_context_pP->ue_context.integrity_algorithm << 4)
| ue_context_pP->ue_context.ciphering_algorithm,
(ue_context_p->ue_context.integrity_algorithm << 4)
| ue_context_p->ue_context.ciphering_algorithm,
kRRCenc,
kRRCint);
nr_pdcp_add_drbs(ctxt_pP->enb_flag, ctxt_pP->rnti,
nr_pdcp_add_drbs(ctxt_p->enb_flag, ctxt_p->rnti,
DRB_configList,
(ue_context_pP->ue_context.integrity_algorithm << 4)
| ue_context_pP->ue_context.ciphering_algorithm,
(ue_context_p->ue_context.integrity_algorithm << 4)
| ue_context_p->ue_context.ciphering_algorithm,
kUPenc,
kUPint,
get_softmodem_params()->sa ? ue_context_pP->ue_context.masterCellGroup->rlc_BearerToAddModList : NULL);
get_softmodem_params()->sa ? ue_context_p->ue_context.masterCellGroup->rlc_BearerToAddModList : NULL);
return ret;
}
//-----------------------------------------------------------------------------
/*
* Process the RRC Reconfiguration Complete from the UE
*/
void
rrc_gNB_process_RRCReconfigurationComplete(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *ue_context_pP,
const uint8_t xid
)
{
int drb_id;
NR_DRB_ToAddModList_t *DRB_configList = ue_context_pP->ue_context.DRB_configList2[xid];
NR_SRB_ToAddModList_t *SRB_configList = ue_context_pP->ue_context.SRB_configList2[xid];
NR_DRB_ToReleaseList_t *DRB_Release_configList2 = ue_context_pP->ue_context.DRB_Release_configList2[xid];
NR_DRB_Identity_t *drb_id_p = NULL;
// uint8_t nr_DRB2LCHAN[8];
ue_context_pP->ue_context.ue_reestablishment_timer = 0;
/* Refresh SRBs/DRBs */
if (!NODE_IS_CU(RC.nrrrc[ctxt_pP->module_id]->node_type)) {
LOG_D(NR_RRC,"Configuring RLC DRBs/SRBs for UE %x\n",ue_context_pP->ue_context.rnti);
......@@ -3523,6 +3584,7 @@ static void rrc_CU_process_ue_context_setup_response(MessageDef *msg_p, const ch
xer_fprint(stdout,&asn_DEF_NR_CellGroupConfig, ue_context_p->ue_context.masterCellGroup);
if (ue_context_p->ue_context.established_pdu_sessions_flag == 1) {
fill_DRB_configList(&ctxt, ue_context_p);
rrc_gNB_generate_dedicatedRRCReconfiguration(&ctxt, ue_context_p, cellGroupConfig);
} else {
rrc_gNB_generate_defaultRRCReconfiguration(&ctxt, ue_context_p);
......@@ -3877,7 +3939,7 @@ int rrc_gNB_process_e1_setup_req(e1ap_setup_req_t *req, instance_t instance) {
return 0;
}
void fill_DRB_configList(NR_DRB_ToAddModList_t *DRB_configList, pdu_session_to_setup_t *pdu) {
void fill_DRB_configList_e1(NR_DRB_ToAddModList_t *DRB_configList, pdu_session_to_setup_t *pdu) {
for (int i=0; i < pdu->numDRB2Setup; i++) {
DRB_nGRAN_to_setup_t *drb = pdu->DRBnGRanList + i;
......@@ -3944,10 +4006,10 @@ void fill_DRB_configList(NR_DRB_ToAddModList_t *DRB_configList, pdu_session_to_s
}
}
int drb_config_gtpu_create(e1ap_bearer_setup_req_t *req,
gtpv1u_gnb_create_tunnel_req_t *create_tunnel_req,
gtpv1u_gnb_create_tunnel_resp_t *create_tunnel_resp,
instance_t instance) {
int drb_config_gtpu_create_e1(e1ap_bearer_setup_req_t *req,
gtpv1u_gnb_create_tunnel_req_t *create_tunnel_req,
gtpv1u_gnb_create_tunnel_resp_t *create_tunnel_resp,
instance_t instance) {
NR_DRB_ToAddModList_t DRB_configList = {0};
for (int i=0; i < req->numPDUSessions; i++) {
......@@ -3959,10 +4021,10 @@ int drb_config_gtpu_create(e1ap_bearer_setup_req_t *req,
sizeof(uint8_t)*4);
create_tunnel_req->dst_addr[i].length = 32; // 8bits * 4bytes
create_tunnel_req->outgoing_teid[i] = pdu->teId;
fill_DRB_configList(&DRB_configList, pdu);
fill_DRB_configList_e1(&DRB_configList, pdu);
}
create_tunnel_req->num_tunnels = req->numPDUSessions;
create_tunnel_req->ue_id = (req->gNB_cu_cp_ue_id & 0xFFFF);
create_tunnel_req->ue_id = (req->gNB_cu_cp_ue_id & 0xFFFF);
int ret = gtpv1u_create_ngu_tunnel(
instance,
......@@ -4000,7 +4062,7 @@ int rrc_gNB_process_e1_bearer_context_setup_req(e1ap_bearer_setup_req_t *req, in
gtpv1u_gnb_create_tunnel_req_t create_tunnel_req={0};
gtpv1u_gnb_create_tunnel_resp_t create_tunnel_resp={0};
int ret = drb_config_gtpu_create(req, &create_tunnel_req, &create_tunnel_resp, instance);
int ret = drb_config_gtpu_create_e1(req, &create_tunnel_req, &create_tunnel_resp, instance);
MessageDef *message_p;
message_p = itti_alloc_new_message (TASK_RRC_GNB, instance, E1AP_BEARER_CONTEXT_SETUP_RESP);
......@@ -4092,22 +4154,20 @@ void prepare_and_send_ue_context_modification_f1(rrc_gNB_ue_context_t *ue_contex
void bearer_context_setup_direct(e1ap_bearer_setup_req_t *req, instance_t instance) {
gtpv1u_gnb_create_tunnel_req_t create_tunnel_req={0};
gtpv1u_gnb_create_tunnel_resp_t create_tunnel_resp={0};
uint16_t ue_initial_id = 0; // Making an invalid UE initial ID
rrc_gNB_ue_context_t *ue_context_p = rrc_gNB_get_ue_context_from_ngap_ids(instance, ue_initial_id, req->gNB_cu_cp_ue_id);
protocol_ctxt_t ctxt = {0};
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, 0, GNB_FLAG_YES, ue_context_p->ue_context.rnti, 0, 0, 0);
int ret = drb_config_gtpu_create(req, &create_tunnel_req, &create_tunnel_resp, instance);
fill_DRB_configList(&ctxt, ue_context_p);
int ret = drb_config_gtpu_create(&ctxt,
ue_context_p,
req,
ue_context_p->ue_context.DRB_configList,
ue_context_p->ue_context.SRB_configList,
instance);
if (ret < 0) AssertFatal(false, "Unable to configure DRB or to create GTP Tunnel\n");
nr_rrc_gNB_process_GTPV1U_CREATE_TUNNEL_RESP(&ctxt,
&create_tunnel_resp);
ue_context_p->ue_context.setup_pdu_sessions += create_tunnel_resp.num_tunnels;
if(!NODE_IS_CU(RC.nrrrc[ctxt.module_id]->node_type)){
rrc_gNB_generate_dedicatedRRCReconfiguration(&ctxt, ue_context_p, NULL);
} else {
......
openair2/RRC/NR/rrc_gNB_NGAP.c
View file @ cdd58ab9
......@@ -1013,15 +1013,22 @@ rrc_gNB_process_NGAP_PDUSESSION_SETUP_REQ(
if (rrc->security.do_drb_ciphering) {
pdu->confidentialityProtectionIndication = E1AP_ConfidentialityProtectionIndication_required;
}
pdu->teId = msg->pdusession_setup_params[i].gtp_teid;
pdu->teId = msg->pdusession_setup_params[i].gtp_teid;
memcpy(&pdu->tlAddress,
msg->pdusession_setup_params[i].upf_addr.buffer,
sizeof(uint8_t)*4);
ue_context_p->ue_context.pduSession[i].param = msg->pdusession_setup_params[i];
ue_context_p->ue_context.nb_of_pdusessions = msg->nb_pdusessions_tosetup;
ue_context_p->ue_context.gNB_ue_ngap_id = msg->gNB_ue_ngap_id;
ue_context_p->ue_context.amf_ue_ngap_id = msg->amf_ue_ngap_id;
pdu->numDRB2Setup = 1; // One DRB per PDU Session. TODO: Remove hardcoding
ue_context_p->ue_context.setup_pdu_sessions += pdu->numDRB2Setup;
for (int j=0; j < pdu->numDRB2Setup; j++) {
DRB_nGRAN_to_setup_t *drb = pdu->DRBnGRanList + j;
drb->id = i + j + 1;
drb->defaultDRB = E1AP_DefaultDRB_true;
drb->sDAP_Header_UL = !(rrc->configuration.enable_sdap);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment