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ENDC path switch S1-U: Adding GTP-U tunnel related functionality at gNB

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This commit is contained in:
matzakos
2020-03-13 12:55:49 +01:00
parent c56075928a
commit 7408ddb2c3
4 changed files with 61 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/RRC/LTE/rrc_eNB_GTPV1U.c
+50
View File
@@ -93,6 +93,56 @@ rrc_eNB_process_GTPV1U_CREATE_TUNNEL_RESP(
}
}
int
rrc_gNB_process_GTPV1U_CREATE_TUNNEL_RESP(
const protocol_ctxt_t *const ctxt_pP,
const gtpv1u_enb_create_tunnel_resp_t *const create_tunnel_resp_pP,
uint8_t *inde_list
) {
rnti_t rnti;
int i;
struct rrc_gNB_ue_context_s *ue_context_p = NULL;
if (create_tunnel_resp_pP) {
LOG_D(RRC, PROTOCOL_RRC_CTXT_UE_FMT" RX CREATE_TUNNEL_RESP num tunnels %u \n",
PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP),
create_tunnel_resp_pP->num_tunnels);
rnti = create_tunnel_resp_pP->rnti;
ue_context_p = rrc_gNB_get_ue_context(
RC.nrrrc[ctxt_pP->module_id],
ctxt_pP->rnti);
for (i = 0; i < create_tunnel_resp_pP->num_tunnels; i++) {
ue_context_p->ue_context.gnb_gtp_teid[inde_list[i]] = create_tunnel_resp_pP->enb_S1u_teid[i];
ue_context_p->ue_context.gnb_gtp_addrs[inde_list[i]] = create_tunnel_resp_pP->enb_addr;
ue_context_p->ue_context.gnb_gtp_ebi[inde_list[i]] = create_tunnel_resp_pP->eps_bearer_id[i];
LOG_I(RRC, PROTOCOL_RRC_CTXT_UE_FMT" rrc_eNB_process_GTPV1U_CREATE_TUNNEL_RESP tunnel (%u, %u) bearer UE context index %u, msg index %u, id %u, gtp addr len %d \n",
PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP),
create_tunnel_resp_pP->enb_S1u_teid[i],
ue_context_p->ue_context.gnb_gtp_teid[inde_list[i]],
inde_list[i],
i,
create_tunnel_resp_pP->eps_bearer_id[i],
create_tunnel_resp_pP->enb_addr.length);
}
MSC_LOG_RX_MESSAGE(
MSC_RRC_ENB,
MSC_GTPU_ENB,
NULL,0,
MSC_AS_TIME_FMT" CREATE_TUNNEL_RESP RNTI %"PRIx16" ntuns %u ebid %u enb-s1u teid %u",
0,0,rnti,
create_tunnel_resp_pP->num_tunnels,
ue_context_p->ue_context.gnb_gtp_ebi[0],
ue_context_p->ue_context.gnb_gtp_teid[0]);
(void)rnti; /* avoid gcc warning "set but not used" */
return 0;
} else {
return -1;
}
}
//------------------------------------------------------------------------------
boolean_t
gtpv_data_req(
openair2/RRC/LTE/rrc_eNB_GTPV1U.h
+7
View File
@@ -43,6 +43,13 @@ rrc_eNB_process_GTPV1U_CREATE_TUNNEL_RESP(
uint8_t *inde_list
);
int
rrc_gNB_process_GTPV1U_CREATE_TUNNEL_RESP(
const protocol_ctxt_t *const ctxt_pP,
const gtpv1u_enb_create_tunnel_resp_t *const create_tunnel_resp_pP,
uint8_t *inde_list
);
/*! \fn rrc_eNB_send_GTPV1U_ENB_DELETE_TUNNEL_REQ(module_id_t enb_mod_idP, const rrc_eNB_ue_context_t* const ue_context_pP)
*\brief Send GTPV1U_ENB_DELETE_TUNNEL_REQ message to GTPV1U to destroy all UE-related tunnels.
*\param module_id Instance ID of eNB.
openair2/RRC/NR/nr_rrc_defs.h
+3 -3
View File
@@ -326,9 +326,9 @@ typedef struct gNB_RRC_UE_s {
uint8_t nb_release_of_e_rabs;
e_rab_failed_t e_rabs_release_failed[S1AP_MAX_E_RAB];
// LG: For GTPV1 TUNNELS
uint32_t enb_gtp_teid[S1AP_MAX_E_RAB];
transport_layer_addr_t enb_gtp_addrs[S1AP_MAX_E_RAB];
rb_id_t enb_gtp_ebi[S1AP_MAX_E_RAB];
uint32_t gnb_gtp_teid[S1AP_MAX_E_RAB];
transport_layer_addr_t gnb_gtp_addrs[S1AP_MAX_E_RAB];
rb_id_t gnb_gtp_ebi[S1AP_MAX_E_RAB];
#endif
uint32_t ul_failure_timer;
uint32_t ue_release_timer;
openair2/RRC/NR/rrc_gNB_nsa.c
+1 -2
View File
@@ -166,12 +166,11 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc,struct rrc_gNB_ue_context_s *ue_context_
ctxt.instance,
&create_tunnel_req,
&create_tunnel_resp);
rrc_eNB_process_GTPV1U_CREATE_TUNNEL_RESP(
rrc_gNB_process_GTPV1U_CREATE_TUNNEL_RESP(
&ctxt,
&create_tunnel_resp,
&inde_list[0]);
X2AP_ENDC_SGNB_ADDITION_REQ_ACK(msg).nb_e_rabs_admitted_tobeadded = m->nb_e_rabs_tobeadded;
for(int i=0; i<ue_context_p->ue_context.nb_of_e_rabs; i++){
X2AP_ENDC_SGNB_ADDITION_REQ_ACK(msg).e_rabs_admitted_tobeadded[i].e_rab_id = ue_context_p->ue_context.e_rab[i].param.e_rab_id;
X2AP_ENDC_SGNB_ADDITION_REQ_ACK(msg).e_rabs_admitted_tobeadded[i].gtp_teid = create_tunnel_resp.enb_S1u_teid[i];