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replace protobuf in 4G F1 split, first step: UL packets

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This commit is contained in:
Laurent THOMAS
2021-09-21 10:30:46 +02:00
parent df82ee1b9c
commit 686e585666
19 changed files with 282 additions and 167 deletions
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openair2/F1AP/f1ap_cu_task.c
+2 -2
View File
@@ -45,8 +45,8 @@ static instance_t cu_task_create_gtpu_instance_to_du(eth_params_t *IPaddrs) {
openAddr_t tmp={0};
strncpy(tmp.originHost, IPaddrs->my_addr, sizeof(tmp.originHost)-1);
strncpy(tmp.destinationHost, IPaddrs->remote_addr, sizeof(tmp.destinationHost)-1);
sprintf(tmp.originService, "%d", GTPV1U_UDP_PORT);
sprintf(tmp.destinationService, "%d", GTPV1U_UDP_PORT);
sprintf(tmp.originService, "%d", IPaddrs->my_portd);
sprintf(tmp.destinationService, "%d", IPaddrs->remote_portd);
return ocp_gtpv1Init(tmp);
}
openair2/F1AP/f1ap_du_rrc_message_transfer.c
+1 -2
View File
@@ -744,7 +744,6 @@ int DU_send_UL_RRC_MESSAGE_TRANSFER(instance_t instance,
return 0;
}
/* UL RRC Message Transfer */
int DU_send_INITIAL_UL_RRC_MESSAGE_TRANSFER(instance_t instanceP,
int CC_idP,
@@ -764,7 +763,7 @@ int DU_send_INITIAL_UL_RRC_MESSAGE_TRANSFER(instance_t instanceP,
LOG_E(F1AP, "Failed to add UE \n");
return -1;
}
/* Create */
/* 0. Message Type */
pdu.present = F1AP_F1AP_PDU_PR_initiatingMessage;
openair2/F1AP/f1ap_du_task.c
+5 -2
View File
@@ -96,10 +96,12 @@ void du_task_handle_sctp_association_resp(instance_t instance, sctp_new_associat
.remote_ipv4_address = tmp->remote_addr,
.remote_port = tmp->remote_portd
};
/*
if (!RC.nrrrc)
AssertFatal(proto_agent_start(instance, &params) == 0,
"could not start PROTO_AGENT for F1U on instance %ld!\n", instance);
*/
DU_send_F1_SETUP_REQUEST(instance);
}
@@ -149,7 +151,8 @@ void *F1AP_DU_task(void *arg) {
AssertFatal(getCxt(DUtype, myInstance)->gtpInst>0,"Failed to create CU F1-U UDP listener");
// Fixme: fully inconsistent instances management
// dirty global var is a bad fix
DUuniqInstance=getCxt(DUtype, myInstance)->gtpInst;
extern instance_t legacyInstanceMapping;
legacyInstanceMapping = DUuniqInstance = getCxt(DUtype, myInstance)->gtpInst;
du_task_send_sctp_association_req(myInstance,msgSetup);
break;
openair2/F1AP/f1ap_du_ue_context_management.c
+126 -107
View File
@@ -42,6 +42,22 @@
#include "openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h"
#include <openair3/ocp-gtpu/gtp_itf.h>
boolean_t lteDURecvCb( protocol_ctxt_t *ctxt_pP,
const srb_flag_t srb_flagP,
const rb_id_t rb_idP,
const mui_t muiP,
const confirm_t confirmP,
const sdu_size_t sdu_buffer_sizeP,
unsigned char *const sdu_buffer_pP,
const pdcp_transmission_mode_t modeP,
const uint32_t *sourceL2Id,
const uint32_t *destinationL2Id) {
// The buffer comes from the stack in gtp-u thread, we have a make a separate buffer to enqueue in a inter-thread message queue
mem_block_t *sdu=get_free_mem_block(sdu_buffer_sizeP, __func__);
memcpy(sdu->data, sdu_buffer_pP, sdu_buffer_sizeP);
du_rlc_data_req(ctxt_pP,srb_flagP, false, rb_idP,muiP, confirmP, sdu_buffer_sizeP, sdu);
return true;
}
int DU_handle_UE_CONTEXT_SETUP_REQUEST(instance_t instance,
uint32_t assoc_id,
@@ -111,75 +127,75 @@ int DU_handle_UE_CONTEXT_SETUP_REQUEST(instance_t instance,
f1ap_ue_context_setup_req->cellULConfigured = NULL;
}
if (RC.nrrrc) {
/* RRCContainer */
F1AP_UEContextSetupRequestIEs_t *ieDrb;
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupRequestIEs_t, ieDrb, container,
F1AP_ProtocolIE_ID_id_DRBs_ToBeSetup_List, true);
if(ieDrb!=NULL) {
f1ap_ue_context_setup_req->drbs_to_be_setup_length = ieDrb->value.choice.DRBs_ToBeSetup_List.list.count;
f1ap_ue_context_setup_req->drbs_to_be_setup = calloc(f1ap_ue_context_setup_req->drbs_to_be_setup_length,
sizeof(f1ap_drb_to_be_setup_t));
AssertFatal(f1ap_ue_context_setup_req->drbs_to_be_setup,
"could not allocate memory for f1ap_ue_context_setup_req->drbs_to_be_setup\n");
for (i = 0; i < f1ap_ue_context_setup_req->drbs_to_be_setup_length; ++i) {
f1ap_drb_to_be_setup_t *drb_p = &f1ap_ue_context_setup_req->drbs_to_be_setup[i];
F1AP_DRBs_ToBeSetup_Item_t *drbs_tobesetup_item_p =
&((F1AP_DRBs_ToBeSetup_ItemIEs_t *)ieDrb->value.choice.DRBs_ToBeSetup_List.list.array[i])->value.choice.DRBs_ToBeSetup_Item;
drb_p->drb_id = drbs_tobesetup_item_p->dRBID;
/* TODO in the following, assume only one UP UL TNL is present.
* this matches/assumes OAI CU implementation, can be up to 2! */
drb_p->up_ul_tnl_length = 1;
AssertFatal(drbs_tobesetup_item_p->uLUPTNLInformation_ToBeSetup_List.list.count > 0,
"no UL UP TNL Information in DRBs to be Setup list\n");
F1AP_ULUPTNLInformation_ToBeSetup_Item_t *ul_up_tnl_info_p = (F1AP_ULUPTNLInformation_ToBeSetup_Item_t *)drbs_tobesetup_item_p->uLUPTNLInformation_ToBeSetup_List.list.array[0];
F1AP_GTPTunnel_t *ul_up_tnl0 = ul_up_tnl_info_p->uLUPTNLInformation.choice.gTPTunnel;
BIT_STRING_TO_TRANSPORT_LAYER_ADDRESS_IPv4(&ul_up_tnl0->transportLayerAddress, drb_p->up_ul_tnl[0].tl_address);
OCTET_STRING_TO_INT32(&ul_up_tnl0->gTP_TEID, drb_p->up_ul_tnl[0].teid);
switch (drbs_tobesetup_item_p->rLCMode) {
case F1AP_RLCMode_rlc_am:
drb_p->rlc_mode = RLC_MODE_AM;
break;
default:
drb_p->rlc_mode = RLC_MODE_TM;
break;
}
/*transport_layer_addr_t addr;
/* DRB */
F1AP_UEContextSetupRequestIEs_t *ieDrb;
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupRequestIEs_t, ieDrb, container,
F1AP_ProtocolIE_ID_id_DRBs_ToBeSetup_List, true);
if(ieDrb!=NULL) {
f1ap_ue_context_setup_req->drbs_to_be_setup_length = ieDrb->value.choice.DRBs_ToBeSetup_List.list.count;
f1ap_ue_context_setup_req->drbs_to_be_setup = calloc(f1ap_ue_context_setup_req->drbs_to_be_setup_length,
sizeof(f1ap_drb_to_be_setup_t));
AssertFatal(f1ap_ue_context_setup_req->drbs_to_be_setup,
"could not allocate memory for f1ap_ue_context_setup_req->drbs_to_be_setup\n");
for (i = 0; i < f1ap_ue_context_setup_req->drbs_to_be_setup_length; ++i) {
f1ap_drb_to_be_setup_t *drb_p = &f1ap_ue_context_setup_req->drbs_to_be_setup[i];
F1AP_DRBs_ToBeSetup_Item_t *drbs_tobesetup_item_p =
&((F1AP_DRBs_ToBeSetup_ItemIEs_t *)ieDrb->value.choice.DRBs_ToBeSetup_List.list.array[i])->value.choice.DRBs_ToBeSetup_Item;
drb_p->drb_id = drbs_tobesetup_item_p->dRBID;
/* TODO in the following, assume only one UP UL TNL is present.
* this matches/assumes OAI CU implementation, can be up to 2! */
drb_p->up_ul_tnl_length = 1;
AssertFatal(drbs_tobesetup_item_p->uLUPTNLInformation_ToBeSetup_List.list.count > 0,
"no UL UP TNL Information in DRBs to be Setup list\n");
F1AP_ULUPTNLInformation_ToBeSetup_Item_t *ul_up_tnl_info_p = (F1AP_ULUPTNLInformation_ToBeSetup_Item_t *)drbs_tobesetup_item_p->uLUPTNLInformation_ToBeSetup_List.list.array[0];
F1AP_GTPTunnel_t *ul_up_tnl0 = ul_up_tnl_info_p->uLUPTNLInformation.choice.gTPTunnel;
BIT_STRING_TO_TRANSPORT_LAYER_ADDRESS_IPv4(&ul_up_tnl0->transportLayerAddress, drb_p->up_ul_tnl[0].tl_address);
OCTET_STRING_TO_INT32(&ul_up_tnl0->gTP_TEID, drb_p->up_ul_tnl[0].teid);
switch (drbs_tobesetup_item_p->rLCMode) {
case F1AP_RLCMode_rlc_am:
drb_p->rlc_mode = RLC_MODE_AM;
break;
default:
drb_p->rlc_mode = RLC_MODE_TM;
break;
}
if (!(RC.nrrrc && RC.nrrrc[instance]->node_type == ngran_gNB_DU)) {
transport_layer_addr_t addr;
memcpy(addr.buffer, &drb_p->up_ul_tnl[0].tl_address, sizeof(drb_p->up_ul_tnl[0].tl_address));
addr.length=sizeof(drb_p->up_ul_tnl[0].tl_address)*8;
drb_p->up_dl_tnl[0].teid=newGtpuCreateTunnel(INSTANCE_DEFAULT,
f1ap_ue_context_setup_req->rnti,
drb_p->drb_id,
drb_p->drb_id,
drb_p->up_ul_tnl[0].teid,
addr,
2152,
DURecvCb);*/
f1ap_ue_context_setup_req->rnti,
drb_p->drb_id,
drb_p->drb_id,
drb_p->up_ul_tnl[0].teid,
addr,
2152,
lteDURecvCb);
}
}
}
F1AP_UEContextSetupRequestIEs_t *ieSrb;
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupRequestIEs_t, ieSrb, container,
F1AP_ProtocolIE_ID_id_SRBs_ToBeSetup_List, true);
if(ieSrb != NULL) {
f1ap_ue_context_setup_req->srbs_to_be_setup_length = ieSrb->value.choice.SRBs_ToBeSetup_List.list.count;
f1ap_ue_context_setup_req->srbs_to_be_setup = calloc(f1ap_ue_context_setup_req->srbs_to_be_setup_length,
sizeof(f1ap_srb_to_be_setup_t));
AssertFatal(f1ap_ue_context_setup_req->srbs_to_be_setup,
"could not allocate memory for f1ap_ue_context_setup_req->srbs_to_be_setup\n");
for (i = 0; i < f1ap_ue_context_setup_req->srbs_to_be_setup_length; ++i) {
f1ap_srb_to_be_setup_t *srb_p = &f1ap_ue_context_setup_req->srbs_to_be_setup[i];
F1AP_SRBs_ToBeSetup_Item_t *srbs_tobesetup_item_p;
srbs_tobesetup_item_p = &((F1AP_SRBs_ToBeSetup_ItemIEs_t *)ieSrb->value.choice.SRBs_ToBeSetup_List.list.array[i])->value.choice.SRBs_ToBeSetup_Item;
srb_p->srb_id = srbs_tobesetup_item_p->sRBID;
}
/* SRB */
F1AP_UEContextSetupRequestIEs_t *ieSrb;
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextSetupRequestIEs_t, ieSrb, container,
F1AP_ProtocolIE_ID_id_SRBs_ToBeSetup_List, true);
if(ieSrb != NULL) {
f1ap_ue_context_setup_req->srbs_to_be_setup_length = ieSrb->value.choice.SRBs_ToBeSetup_List.list.count;
f1ap_ue_context_setup_req->srbs_to_be_setup = calloc(f1ap_ue_context_setup_req->srbs_to_be_setup_length,
sizeof(f1ap_srb_to_be_setup_t));
AssertFatal(f1ap_ue_context_setup_req->srbs_to_be_setup,
"could not allocate memory for f1ap_ue_context_setup_req->srbs_to_be_setup\n");
for (i = 0; i < f1ap_ue_context_setup_req->srbs_to_be_setup_length; ++i) {
f1ap_srb_to_be_setup_t *srb_p = &f1ap_ue_context_setup_req->srbs_to_be_setup[i];
F1AP_SRBs_ToBeSetup_Item_t *srbs_tobesetup_item_p;
srbs_tobesetup_item_p = &((F1AP_SRBs_ToBeSetup_ItemIEs_t *)ieSrb->value.choice.SRBs_ToBeSetup_List.list.array[i])->value.choice.SRBs_ToBeSetup_Item;
srb_p->srb_id = srbs_tobesetup_item_p->sRBID;
}
}
@@ -214,7 +230,8 @@ int DU_handle_UE_CONTEXT_SETUP_REQUEST(instance_t instance,
}
//DU_send_UE_CONTEXT_SETUP_RESPONSE(instance, f1ap_ue_context_setup_req);
itti_send_msg_to_task(TASK_RRC_GNB, instance, msg_p);
if (RC.nrrrc && RC.nrrrc[instance]->node_type == ngran_gNB_DU)
itti_send_msg_to_task(TASK_RRC_GNB, instance, msg_p);
return 0;
}
@@ -658,9 +675,10 @@ int DU_handle_UE_CONTEXT_RELEASE_COMMAND(instance_t instance,
AssertFatal(ctxt.rnti == rnti,
"RNTI obtained through DU ID (%x) is different from CU ID (%x)\n",
rnti, ctxt.rnti);
int UE_out_of_sync = 0;
if (RC.nrrrc[instance]->node_type == ngran_gNB_DU) {
if (RC.nrrrc && RC.nrrrc[instance]->node_type == ngran_gNB_DU) {
for (int n = 0; n < MAX_MOBILES_PER_GNB; ++n) {
if (RC.nrmac[instance]->UE_info.active[n] == TRUE
&& rnti == RC.nrmac[instance]->UE_info.rnti[n]) {
@@ -724,55 +742,56 @@ int DU_handle_UE_CONTEXT_RELEASE_COMMAND(instance_t instance,
}
}
if (RC.nrrrc[instance]->node_type == ngran_gNB_DU) {
if (RC.nrrrc && RC.nrrrc[instance]->node_type == ngran_gNB_DU) {
// struct rrc_gNB_ue_context_s *ue_context_p;
f1ap_ue_context_release_cplt_t cplt;
cplt.rnti = ctxt.rnti;
DU_send_UE_CONTEXT_RELEASE_COMPLETE(instance, &cplt);
return 0;
}
struct rrc_eNB_ue_context_s *ue_context_p;
ue_context_p = rrc_eNB_get_ue_context(RC.rrc[ctxt.instance], ctxt.rnti);
if (ue_context_p && !UE_out_of_sync) {
/* UE exists and is in sync so we start a timer before releasing the
* connection */
pthread_mutex_lock(&rrc_release_freelist);
for (uint16_t release_num = 0; release_num < NUMBER_OF_UE_MAX; release_num++) {
if (rrc_release_info.RRC_release_ctrl[release_num].flag == 0) {
if (ue_context_p->ue_context.ue_release_timer_s1 > 0)
rrc_release_info.RRC_release_ctrl[release_num].flag = 1;
else
rrc_release_info.RRC_release_ctrl[release_num].flag = 2;
rrc_release_info.RRC_release_ctrl[release_num].rnti = ctxt.rnti;
LOG_D(F1AP, "add rrc_release_info RNTI %x\n", ctxt.rnti);
// TODO: how to provide the correct MUI?
rrc_release_info.RRC_release_ctrl[release_num].rrc_eNB_mui = 0;
rrc_release_info.num_UEs++;
LOG_D(RRC,"Generate DLSCH Release send: index %d rnti %x mui %d flag %d \n",release_num,
ctxt.rnti, 0, rrc_release_info.RRC_release_ctrl[release_num].flag);
break;
}
}
pthread_mutex_unlock(&rrc_release_freelist);
ue_context_p->ue_context.ue_release_timer_s1 = 0;
} else if (ue_context_p && UE_out_of_sync) {
/* UE exists and is out of sync, drop the connection */
mac_eNB_rrc_ul_failure(instance, 0, 0, 0, rnti);
} else {
LOG_E(F1AP, "no ue_context for RNTI %x, acknowledging release\n", rnti);
struct rrc_eNB_ue_context_s *ue_context_p;
ue_context_p = rrc_eNB_get_ue_context(RC.rrc[ctxt.instance], ctxt.rnti);
if (ue_context_p && !UE_out_of_sync) {
/* UE exists and is in sync so we start a timer before releasing the
* connection */
pthread_mutex_lock(&rrc_release_freelist);
for (uint16_t release_num = 0; release_num < NUMBER_OF_UE_MAX; release_num++) {
if (rrc_release_info.RRC_release_ctrl[release_num].flag == 0) {
if (ue_context_p->ue_context.ue_release_timer_s1 > 0)
rrc_release_info.RRC_release_ctrl[release_num].flag = 1;
else
rrc_release_info.RRC_release_ctrl[release_num].flag = 2;
rrc_release_info.RRC_release_ctrl[release_num].rnti = ctxt.rnti;
LOG_D(F1AP, "add rrc_release_info RNTI %x\n", ctxt.rnti);
// TODO: how to provide the correct MUI?
rrc_release_info.RRC_release_ctrl[release_num].rrc_eNB_mui = 0;
rrc_release_info.num_UEs++;
LOG_D(RRC,"Generate DLSCH Release send: index %d rnti %x mui %d flag %d \n",release_num,
ctxt.rnti, 0, rrc_release_info.RRC_release_ctrl[release_num].flag);
break;
}
}
pthread_mutex_unlock(&rrc_release_freelist);
ue_context_p->ue_context.ue_release_timer_s1 = 0;
} else if (ue_context_p && UE_out_of_sync) {
/* UE exists and is out of sync, drop the connection */
mac_eNB_rrc_ul_failure(instance, 0, 0, 0, rnti);
} else {
LOG_E(F1AP, "no ue_context for RNTI %x, acknowledging release\n", rnti);
}
/* TODO send this once the connection has really been released */
f1ap_ue_context_release_cplt_t cplt;
cplt.rnti = ctxt.rnti;
DU_send_UE_CONTEXT_RELEASE_COMPLETE(instance, &cplt);
return 0;
}
/* TODO send this once the connection has really been released */
f1ap_ue_context_release_cplt_t cplt;
cplt.rnti = ctxt.rnti;
DU_send_UE_CONTEXT_RELEASE_COMPLETE(instance, &cplt);
return 0;
}
int DU_send_UE_CONTEXT_RELEASE_COMPLETE(instance_t instance,
f1ap_ue_context_release_cplt_t *cplt) {