//------------------------------------------------------------------------------
int s1ap_eNB_handle_nas_downlink(const uint32_t assoc_id,
const uint32_t stream,
struct s1ap_message_s* message_p)
//------------------------------------------------------------------------------
{
const S1ap_DownlinkNASTransportIEs_t *downlink_NAS_transport_p = NULL;
s1ap_eNB_mme_data_t *mme_desc_p = NULL;
s1ap_eNB_ue_context_t *ue_desc_p = NULL;
s1ap_eNB_instance_t *s1ap_eNB_instance = NULL;
DevAssert(message_p != NULL);
downlink_NAS_transport_p = &message_p->msg.s1ap_DownlinkNASTransportIEs;
/* UE-related procedure -> stream != 0 */
if (stream == 0) {
S1AP_ERROR("[SCTP %d] Received UE-related procedure on stream == 0\n",
assoc_id);
return -1;
}
if ((mme_desc_p = s1ap_eNB_get_MME(NULL, assoc_id, 0)) == NULL) {
S1AP_ERROR(
"[SCTP %d] Received NAS downlink message for non existing MME context\n",
assoc_id);
return -1;
}
s1ap_eNB_instance = mme_desc_p->s1ap_eNB_instance;
if ((ue_desc_p = s1ap_eNB_get_ue_context(s1ap_eNB_instance,
downlink_NAS_transport_p->eNB_UE_S1AP_ID)) == NULL) {
MSC_LOG_RX_DISCARDED_MESSAGE(
MSC_S1AP_ENB,
MSC_S1AP_MME,
(const char *)downlink_NAS_transport_p,
sizeof(S1ap_DownlinkNASTransportIEs_t),
MSC_AS_TIME_FMT" downlinkNASTransport eNB_ue_s1ap_id %u mme_ue_s1ap_id %u",
0,0,//MSC_AS_TIME_ARGS(ctxt_pP),
downlink_NAS_transport_p->eNB_UE_S1AP_ID,
downlink_NAS_transport_p->mme_ue_s1ap_id);
S1AP_ERROR("[SCTP %d] Received NAS downlink message for non existing UE context eNB_UE_S1AP_ID: 0x%"PRIx32" %u\n",
assoc_id,
downlink_NAS_transport_p->eNB_UE_S1AP_ID,
downlink_NAS_transport_p->eNB_UE_S1AP_ID);
return -1;
}
if (0 == ue_desc_p->rx_stream) {
ue_desc_p->rx_stream = stream;
} else if (stream != ue_desc_p->rx_stream) {
S1AP_ERROR("[SCTP %d] Received UE-related procedure on stream %u, expecting %u\n",
assoc_id, stream, ue_desc_p->rx_stream);
return -1;
}
/* Is it the first outcome of the MME for this UE ? If so store the mme
* UE s1ap id.
*/
if (ue_desc_p->mme_ue_s1ap_id == 0) {
ue_desc_p->mme_ue_s1ap_id = downlink_NAS_transport_p->mme_ue_s1ap_id;
} else {
/* We already have a mme ue s1ap id check the received is the same */
if (ue_desc_p->mme_ue_s1ap_id != downlink_NAS_transport_p->mme_ue_s1ap_id) {
S1AP_ERROR("[SCTP %d] Mismatch in MME UE S1AP ID (0x%"PRIx32" != 0x%"PRIx32")\n",
assoc_id,
downlink_NAS_transport_p->mme_ue_s1ap_id,
ue_desc_p->mme_ue_s1ap_id
);
return -1;
}
}
MSC_LOG_RX_MESSAGE(
MSC_S1AP_ENB,
MSC_S1AP_MME,
(const char *)downlink_NAS_transport_p,
sizeof(S1ap_DownlinkNASTransportIEs_t),
MSC_AS_TIME_FMT" downlinkNASTransport eNB_ue_s1ap_id %u mme_ue_s1ap_id %u",
0,0,//MSC_AS_TIME_ARGS(ctxt_pP),
downlink_NAS_transport_p->eNB_UE_S1AP_ID,
downlink_NAS_transport_p->mme_ue_s1ap_id);
/* Forward the NAS PDU to RRC */
s1ap_eNB_itti_send_nas_downlink_ind(s1ap_eNB_instance->instance,
ue_desc_p->ue_initial_id,
ue_desc_p->eNB_ue_s1ap_id,
downlink_NAS_transport_p->nas_pdu.buf,
downlink_NAS_transport_p->nas_pdu.size);
// LG: Why set to 0 ??
//ue_desc_p->ue_initial_id = 0;
return 0;
}
void config_req_rlc_um_asn1 (
const protocol_ctxt_t* const ctxt_pP,
const srb_flag_t srb_flagP,
const MBMS_flag_t mbms_flagP,
const mbms_session_id_t mbms_session_idP,
const mbms_service_id_t mbms_service_idP,
const UL_UM_RLC_t * const ul_rlc_pP,
const DL_UM_RLC_t * const dl_rlc_pP,
const rb_id_t rb_idP)
{
uint32_t ul_sn_FieldLength = 0;
uint32_t dl_sn_FieldLength = 0;
uint32_t t_Reordering = 0;
rlc_union_t *rlc_union_p = NULL;
rlc_um_entity_t *rlc_p = NULL;
hash_key_t key = RLC_COLL_KEY_VALUE(ctxt_pP->module_id, ctxt_pP->rnti, ctxt_pP->enb_flag, rb_idP, srb_flagP);
hashtable_rc_t h_rc;
#if Rel10
if (mbms_flagP) {
AssertFatal(dl_rlc_pP, "No RLC UM DL config");
AssertFatal(ul_rlc_pP == NULL, "RLC UM UL config present");
key = RLC_COLL_KEY_MBMS_VALUE(ctxt_pP->module_id, ctxt_pP->rnti, ctxt_pP->enb_flag, mbms_service_idP, mbms_session_idP);
h_rc = hashtable_get(rlc_coll_p, key, (void**)&rlc_union_p);
AssertFatal (h_rc == HASH_TABLE_OK, "RLC NOT FOUND enb id %u rnti %i enb flag %u service id %u, session id %u",
ctxt_pP->module_id,
ctxt_pP->rnti,
ctxt_pP->enb_flag,
mbms_service_idP,
mbms_session_idP);
rlc_p = &rlc_union_p->rlc.um;
} else
#endif
{
key = RLC_COLL_KEY_VALUE(ctxt_pP->module_id, ctxt_pP->rnti, ctxt_pP->enb_flag, rb_idP, srb_flagP);
h_rc = hashtable_get(rlc_coll_p, key, (void**)&rlc_union_p);
AssertFatal (h_rc == HASH_TABLE_OK, "RLC NOT FOUND enb id %u ue id %i enb flag %u rb id %u, srb flag %u",
ctxt_pP->module_id,
ctxt_pP->rnti,
ctxt_pP->enb_flag,
rb_idP,
srb_flagP);
rlc_p = &rlc_union_p->rlc.um;
}
//-----------------------------------------------------------------------------
LOG_D(RLC, PROTOCOL_RLC_UM_CTXT_FMT" CONFIG_REQ timer_reordering=%dms sn_field_length= RB %u \n",
PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_p),
(dl_rlc_pP && dl_rlc_pP->t_Reordering<31)?t_Reordering_tab[dl_rlc_pP->t_Reordering]:-1,
rb_idP);
rlc_um_init(ctxt_pP, rlc_p);
if (rlc_um_fsm_notify_event (ctxt_pP, rlc_p, RLC_UM_RECEIVE_CRLC_CONFIG_REQ_ENTER_DATA_TRANSFER_READY_STATE_EVENT)) {
rlc_um_set_debug_infos(ctxt_pP,rlc_p, srb_flagP, rb_idP);
if (ul_rlc_pP != NULL) {
switch (ul_rlc_pP->sn_FieldLength) {
case SN_FieldLength_size5:
ul_sn_FieldLength = 5;
break;
case SN_FieldLength_size10:
ul_sn_FieldLength = 10;
break;
default:
LOG_E(RLC,PROTOCOL_RLC_UM_CTXT_FMT" [CONFIGURE] RB %u INVALID UL sn_FieldLength %d, RLC NOT CONFIGURED\n",
PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_p),
rlc_p->rb_id,
ul_rlc_pP->sn_FieldLength);
MSC_LOG_RX_DISCARDED_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RRC_ENB:MSC_RRC_UE,
NULL,
0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" CONFIG-REQ UL sn_FieldLength %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, rlc_p),
ul_rlc_pP->sn_FieldLength);
return;
}
}
if (dl_rlc_pP != NULL) {
switch (dl_rlc_pP->sn_FieldLength) {
case SN_FieldLength_size5:
dl_sn_FieldLength = 5;
break;
case SN_FieldLength_size10:
dl_sn_FieldLength = 10;
break;
default:
LOG_E(RLC,PROTOCOL_RLC_UM_CTXT_FMT" [CONFIGURE] RB %u INVALID DL sn_FieldLength %d, RLC NOT CONFIGURED\n",
PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_p),
rlc_p->rb_id,
dl_rlc_pP->sn_FieldLength);
MSC_LOG_RX_DISCARDED_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RRC_ENB:MSC_RRC_UE,
NULL,
0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" CONFIG-REQ DL sn_FieldLength %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, rlc_p),
dl_rlc_pP->sn_FieldLength);
return;
}
if (dl_rlc_pP->t_Reordering<T_Reordering_spare1) {
t_Reordering = t_Reordering_tab[dl_rlc_pP->t_Reordering];
} else {
LOG_E(RLC,PROTOCOL_RLC_UM_CTXT_FMT" [CONFIGURE] RB %u INVALID T_Reordering %d, RLC NOT CONFIGURED\n",
PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_p),
rlc_p->rb_id,
dl_rlc_pP->t_Reordering);
MSC_LOG_RX_DISCARDED_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RRC_ENB:MSC_RRC_UE,
NULL,
0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" CONFIG-REQ t_Reord %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, rlc_p),
dl_rlc_pP->t_Reordering);
return;
}
}
if (ctxt_pP->enb_flag > 0) {
rlc_um_configure(ctxt_pP,rlc_p,
t_Reordering,
ul_sn_FieldLength,
dl_sn_FieldLength,
mbms_flagP);
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RRC_ENB:MSC_RRC_UE,
NULL,
0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" CONFIG-REQ t_Reord %u rx snfl %u tx snfl %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, rlc_p),
t_Reordering,
ul_sn_FieldLength,
dl_sn_FieldLength);
} else {
rlc_um_configure(ctxt_pP,rlc_p,
t_Reordering,
dl_sn_FieldLength,
ul_sn_FieldLength,
mbms_flagP);
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RRC_ENB:MSC_RRC_UE,
NULL,
0,
MSC_AS_TIME_FMT" "PROTOCOL_RLC_AM_MSC_FMT" CONFIG-REQ t_Reord %u rx snfl %u tx snfl %u",
MSC_AS_TIME_ARGS(ctxt_pP),
PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP, rlc_p),
t_Reordering,
dl_sn_FieldLength,
ul_sn_FieldLength);
}
}
}
//-----------------------------------------------------------------------------
int pdcp_fifo_read_input_sdus (const protocol_ctxt_t* const ctxt_pP)
{
#ifdef PDCP_USE_NETLINK
protocol_ctxt_t ctxt_cpy = *ctxt_pP;
protocol_ctxt_t ctxt;
hash_key_t key = HASHTABLE_NOT_A_KEY_VALUE;
hashtable_rc_t h_rc;
struct pdcp_netlink_element_s* data_p = NULL;
module_id_t ue_id = 0;
pdcp_t* pdcp_p = NULL;
# if defined(PDCP_USE_NETLINK_QUEUES)
rb_id_t rab_id = 0;
pdcp_transmission_mode_t pdcp_mode = PDCP_TRANSMISSION_MODE_UNKNOWN;
while (pdcp_netlink_dequeue_element(ctxt_pP, &data_p) != 0) {
DevAssert(data_p != NULL);
rab_id = data_p->pdcp_read_header.rb_id % maxDRB;
// ctxt_pP->rnti is NOT_A_RNTI
ctxt_cpy.rnti = pdcp_module_id_to_rnti[ctxt_cpy.module_id][data_p->pdcp_read_header.inst];
key = PDCP_COLL_KEY_VALUE(ctxt_pP->module_id, ctxt_cpy.rnti, ctxt_pP->enb_flag, rab_id, SRB_FLAG_NO);
h_rc = hashtable_get(pdcp_coll_p, key, (void**)&pdcp_p);
if (h_rc != HASH_TABLE_OK) {
LOG_W(PDCP, PROTOCOL_CTXT_FMT" Dropped IP PACKET cause no PDCP instanciated\n",
PROTOCOL_CTXT_ARGS(ctxt_pP));
free(data_p->data);
free(data_p);
data_p = NULL;
continue;
}
CHECK_CTXT_ARGS(&ctxt_cpy);
AssertFatal (rab_id < maxDRB, "RB id is too high (%u/%d)!\n", rab_id, maxDRB);
if (rab_id != 0) {
LOG_D(PDCP, "[FRAME %05d][%s][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ "
"/ %d Bytes --->][PDCP][MOD %u][RB %u]\n",
ctxt_cpy.frame,
(ctxt_cpy.enb_flag) ? "eNB" : "UE",
data_p->pdcp_read_header.inst,
data_p->pdcp_read_header.rb_id,
data_p->pdcp_read_header.data_size,
ctxt_cpy.module_id,
rab_id);
#ifdef OAI_NW_DRIVER_TYPE_ETHERNET
if ((data_p->pdcp_read_header.traffic_type == TRAFFIC_IPV6_TYPE_MULTICAST) /*TRAFFIC_IPV6_TYPE_MULTICAST */ ||
(data_p->pdcp_read_header.traffic_type == TRAFFIC_IPV4_TYPE_MULTICAST) /*TRAFFIC_IPV4_TYPE_MULTICAST */ ||
(data_p->pdcp_read_header.traffic_type == TRAFFIC_IPV4_TYPE_BROADCAST) /*TRAFFIC_IPV4_TYPE_BROADCAST */ ) {
#if defined (Rel10)
PDCP_TRANSMISSION_MODE_TRANSPARENT;
#else
pdcp_mode= PDCP_TRANSMISSION_MODE_DATA;
#endif
} else if ((data_p->pdcp_read_header.traffic_type == TRAFFIC_IPV6_TYPE_UNICAST) /* TRAFFIC_IPV6_TYPE_UNICAST */ ||
(data_p->pdcp_read_header.traffic_type == TRAFFIC_IPV4_TYPE_UNICAST) /*TRAFFIC_IPV4_TYPE_UNICAST*/ ) {
pdcp_mode= PDCP_TRANSMISSION_MODE_DATA;
} else {
pdcp_mode= PDCP_TRANSMISSION_MODE_DATA;
LOG_W(PDCP,"unknown IP traffic type \n");
}
#else // OAI_NW_DRIVER_TYPE_ETHERNET NASMESH driver does not curreenlty support multicast traffic
pdcp_mode = PDCP_TRANSMISSION_MODE_DATA;
#endif
pdcp_data_req(&ctxt_cpy,
SRB_FLAG_NO,
rab_id % maxDRB,
RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO,
data_p->pdcp_read_header.data_size,
data_p->data,
pdcp_mode);
} else if (ctxt_cpy.enb_flag) {
/* rb_id = 0, thus interpreated as broadcast and transported as
* multiple unicast is a broadcast packet, we have to send this
* packet on all default RABS of all connected UEs
*/
LOG_D(PDCP, "eNB Try Forcing send on DEFAULT_RAB_ID first_ue_local %u nb_ue_local %u\n", oai_emulation.info.first_ue_local, oai_emulation.info.nb_ue_local);
for (ue_id = 0; ue_id < NB_UE_INST; ue_id++) {
if (pdcp_module_id_to_rnti[ctxt_cpy.module_id][ue_id] != NOT_A_RNTI) {
LOG_D(PDCP, "eNB Try Forcing send on DEFAULT_RAB_ID UE %d\n", ue_id);
ctxt.module_id = ctxt_cpy.module_id;
ctxt.rnti = ctxt_cpy.pdcp_module_id_to_rnti[ctxt_cpy.module_id][ue_id];
ctxt.frame = ctxt_cpy.frame;
ctxt.enb_flag = ctxt_cpy.enb_flag;
pdcp_data_req(
&ctxt,
SRB_FLAG_NO,
DEFAULT_RAB_ID,
RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO,
data_p->pdcp_read_header.data_size,
data_p->data,
PDCP_TRANSMISSION_MODE_DATA);
}
}
} else {
LOG_D(PDCP, "Forcing send on DEFAULT_RAB_ID\n");
pdcp_data_req(
&ctxt_cpy,
SRB_FLAG_NO,
DEFAULT_RAB_ID,
RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO,
data_p->pdcp_read_header.data_size,
data_p->data,
PDCP_TRANSMISSION_MODE_DATA);
}
free(data_p->data);
free(data_p);
data_p = NULL;
}
return 0;
# else /* PDCP_USE_NETLINK_QUEUES*/
int len = 1;
rb_id_t rab_id = 0;
while (len > 0) {
len = recvmsg(nas_sock_fd, &nas_msg_rx, 0);
if (len<=0) {
// nothing in pdcp NAS socket
//LOG_D(PDCP, "[PDCP][NETLINK] Nothing in socket, length %d \n", len);
} else {
for (nas_nlh_rx = (struct nlmsghdr *) nl_rx_buf;
NLMSG_OK (nas_nlh_rx, len);
nas_nlh_rx = NLMSG_NEXT (nas_nlh_rx, len)) {
if (nas_nlh_rx->nlmsg_type == NLMSG_DONE) {
LOG_D(PDCP, "[PDCP][NETLINK] RX NLMSG_DONE\n");
//return;
}
if (nas_nlh_rx->nlmsg_type == NLMSG_ERROR) {
LOG_D(PDCP, "[PDCP][NETLINK] RX NLMSG_ERROR\n");
}
if (pdcp_read_state_g == 0) {
if (nas_nlh_rx->nlmsg_len == sizeof (pdcp_data_req_header_t) + sizeof(struct nlmsghdr)) {
pdcp_read_state_g = 1; //get
memcpy((void *)&pdcp_read_header_g, (void *)NLMSG_DATA(nas_nlh_rx), sizeof(pdcp_data_req_header_t));
LOG_D(PDCP, "[PDCP][NETLINK] RX pdcp_data_req_header_t inst %u, rb_id %u data_size %d\n",
pdcp_read_header_g.inst, pdcp_read_header_g.rb_id, pdcp_read_header_g.data_size);
} else {
LOG_E(PDCP, "[PDCP][NETLINK] WRONG size %d should be sizeof (pdcp_data_req_header_t) + sizeof(struct nlmsghdr)\n",
nas_nlh_rx->nlmsg_len);
}
} else {
pdcp_read_state_g = 0;
// print_active_requests()
#ifdef PDCP_DEBUG
LOG_D(PDCP, "[PDCP][NETLINK] Something in socket, length %d \n",
nas_nlh_rx->nlmsg_len - sizeof(struct nlmsghdr));
#endif
#ifdef OAI_EMU
// overwrite function input parameters, because only one netlink socket for all instances
if (pdcp_read_header_g.inst < oai_emulation.info.nb_enb_local) {
ctxt.frame = ctxt_cpy.frame;
ctxt.enb_flag = ENB_FLAG_YES;
ctxt.module_id = pdcp_read_header_g.inst + oai_emulation.info.first_enb_local;
ctxt.rnti = oai_emulation.info.eNB_ue_module_id_to_rnti[ctxt.module_id ][pdcp_read_header_g.rb_id / maxDRB + oai_emulation.info.first_ue_local];
rab_id = pdcp_read_header_g.rb_id % maxDRB;
} else {
ctxt.frame = ctxt_cpy.frame;
ctxt.enb_flag = ENB_FLAG_NO;
ctxt.module_id = pdcp_read_header_g.inst - oai_emulation.info.nb_enb_local + oai_emulation.info.first_ue_local;
ctxt.rnti = pdcp_UE_UE_module_id_to_rnti[ctxt.module_id];
rab_id = pdcp_read_header_g.rb_id;
}
CHECK_CTXT_ARGS(&ctxt);
AssertFatal (rab_id < maxDRB, "RB id is too high (%u/%d)!\n", rab_id, maxDRB);
/*LGpdcp_read_header.inst = (pdcp_read_header_g.inst >= oai_emulation.info.nb_enb_local) ? \
pdcp_read_header_g.inst - oai_emulation.info.nb_enb_local+ NB_eNB_INST + oai_emulation.info.first_ue_local :
pdcp_read_header_g.inst + oai_emulation.info.first_enb_local;*/
#else // OAI_EMU
pdcp_read_header_g.inst = 0;
#warning "TO DO CORRCT VALUES FOR ue mod id, enb mod id"
ctxt.frame = ctxt_cpy.frame;
ctxt.enb_flag = ctxt_cpy.enb_flag;
if (ctxt_cpy.enb_flag) {
ctxt.module_id = 0;
rab_id = pdcp_read_header_g.rb_id % maxDRB;
ctxt.rnti = pdcp_eNB_UE_instance_to_rnti[pdcp_eNB_UE_instance_to_rnti_index];
} else {
ctxt.module_id = 0;
rab_id = pdcp_read_header_g.rb_id % maxDRB;
ctxt.rnti = pdcp_UE_UE_module_id_to_rnti[ctxt.module_id];
}
#endif
if (ctxt.enb_flag) {
if (rab_id != 0) {
rab_id = rab_id % maxDRB;
key = PDCP_COLL_KEY_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
h_rc = hashtable_get(pdcp_coll_p, key, (void**)&pdcp_p);
if (h_rc == HASH_TABLE_OK) {
#ifdef PDCP_DEBUG
LOG_D(PDCP, "[FRAME %5u][eNB][NETLINK][IP->PDCP] INST %d: Received socket with length %d (nlmsg_len = %d) on Rab %d \n",
ctxt.frame,
pdcp_read_header_g.inst,
len,
nas_nlh_rx->nlmsg_len-sizeof(struct nlmsghdr),
pdcp_read_header_g.rb_id);
#endif
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
NULL,
0,
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
MSC_AS_TIME_ARGS(ctxt_pP),
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
rab_id,
pdcp_read_header_g.data_size);
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u]UE %u][RB %u]\n",
ctxt_cpy.frame,
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
pdcp_read_header_g.data_size,
ctxt.module_id,
ctxt.rnti,
rab_id);
pdcp_data_req(&ctxt,
SRB_FLAG_NO,
rab_id,
RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO,
pdcp_read_header_g.data_size,
(unsigned char *)NLMSG_DATA(nas_nlh_rx),
PDCP_TRANSMISSION_MODE_DATA);
} else {
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %u] NON INSTANCIATED INSTANCE, DROPPED\n",
ctxt.frame,
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
pdcp_read_header_g.data_size,
ctxt.module_id,
ctxt.rnti,
rab_id);
}
} else { // rb_id =0, thus interpreated as broadcast and transported as multiple unicast
// is a broadcast packet, we have to send this packet on all default RABS of all connected UEs
#warning CODE TO BE REVIEWED, ONLY WORK FOR SIMPLE TOPOLOGY CASES
for (ue_id = 0; ue_id < NB_UE_INST; ue_id++) {
if (oai_emulation.info.eNB_ue_module_id_to_rnti[ctxt_cpy.module_id][ue_id] != NOT_A_RNTI) {
ctxt.rnti = oai_emulation.info.eNB_ue_module_id_to_rnti[ctxt_cpy.module_id][ue_id];
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB DEFAULT_RAB_ID %u]\n",
ctxt.frame,
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
pdcp_read_header_g.data_size,
ctxt.module_id,
ctxt.rnti,
DEFAULT_RAB_ID);
pdcp_data_req (
&ctxt,
SRB_FLAG_NO,
DEFAULT_RAB_ID,
RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO,
pdcp_read_header_g.data_size,
(unsigned char *)NLMSG_DATA(nas_nlh_rx),
PDCP_TRANSMISSION_MODE_DATA);
}
}
}
} else { // enb_flag
if (rab_id != 0) {
rab_id = rab_id % maxDRB;
key = PDCP_COLL_KEY_VALUE(ctxt.module_id, ctxt.rnti, ctxt.enb_flag, rab_id, SRB_FLAG_NO);
h_rc = hashtable_get(pdcp_coll_p, key, (void**)&pdcp_p);
if (h_rc == HASH_TABLE_OK) {
#ifdef PDCP_DEBUG
LOG_D(PDCP, "[FRAME %5u][UE][NETLINK][IP->PDCP] INST %d: Received socket with length %d (nlmsg_len = %d) on Rab %d \n",
ctxt.frame,
pdcp_read_header_g.inst,
len,
nas_nlh_rx->nlmsg_len-sizeof(struct nlmsghdr),
pdcp_read_header_g.rb_id);
LOG_D(PDCP, "[FRAME %5u][UE][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB %u]\n",
ctxt.frame,
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
pdcp_read_header_g.data_size,
ctxt.module_id,
ctxt.rnti,
rab_id);
#endif
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
NULL,
0,
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
MSC_AS_TIME_ARGS(ctxt_pP),
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
rab_id,
pdcp_read_header_g.data_size);
pdcp_data_req(
&ctxt,
SRB_FLAG_NO,
rab_id,
RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO,
pdcp_read_header_g.data_size,
(unsigned char *)NLMSG_DATA(nas_nlh_rx),
PDCP_TRANSMISSION_MODE_DATA);
} else {
MSC_LOG_RX_DISCARDED_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
NULL,
0,
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u rab %u size %u",
MSC_AS_TIME_ARGS(ctxt_pP),
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
rab_id,
pdcp_read_header_g.data_size);
LOG_D(PDCP,
"[FRAME %5u][UE][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes ---X][PDCP][MOD %u][UE %u][RB %u] NON INSTANCIATED INSTANCE key 0x%"PRIx64", DROPPED\n",
ctxt.frame,
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
pdcp_read_header_g.data_size,
ctxt.module_id,
ctxt.rnti,
rab_id,
key);
}
} else {
LOG_D(PDCP, "Forcing send on DEFAULT_RAB_ID\n");
LOG_D(PDCP, "[FRAME %5u][eNB][IP][INSTANCE %u][RB %u][--- PDCP_DATA_REQ / %d Bytes --->][PDCP][MOD %u][UE %u][RB DEFAULT_RAB_ID %u]\n",
ctxt.frame,
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
pdcp_read_header_g.data_size,
ctxt.module_id,
ctxt.rnti,
DEFAULT_RAB_ID);
MSC_LOG_RX_MESSAGE(
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
(ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_IP_ENB:MSC_IP_UE,
NULL,0,
MSC_AS_TIME_FMT" DATA-REQ inst %u rb %u default rab %u size %u",
MSC_AS_TIME_ARGS(ctxt_pP),
pdcp_read_header_g.inst,
pdcp_read_header_g.rb_id,
DEFAULT_RAB_ID,
pdcp_read_header_g.data_size);
pdcp_data_req (
&ctxt,
SRB_FLAG_NO,
DEFAULT_RAB_ID,
RLC_MUI_UNDEFINED,
RLC_SDU_CONFIRM_NO,
pdcp_read_header_g.data_size,
(unsigned char *)NLMSG_DATA(nas_nlh_rx),
PDCP_TRANSMISSION_MODE_DATA);
}
}
}
}
}
}
return len;
# endif
#else // neither PDCP_USE_NETLINK nor PDCP_USE_RT_FIFO
return 0;
#endif // PDCP_USE_NETLINK
}
static NwGtpv1uRcT
nwGtpv1uProcessGpdu( NwGtpv1uStackT *thiz,
NW_IN uint8_t *gpdu,
NW_IN uint32_t gpduLen,
NW_IN uint32_t peerIp)
{
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
NwGtpv1uMsgHeaderT *msgHdr = NULL;
NwGtpv1uTunnelEndPointT *pTunnelEndPoint = NULL;
NwGtpv1uTunnelEndPointT tunnelEndPointKey;
// uint16_t hdr_len = 0;
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_ENTER(thiz);
#endif
// no buffer offset
msgHdr = (NwGtpv1uMsgHeaderT *) gpdu;
tunnelEndPointKey.teid = ntohl(msgHdr->teid);
pTunnelEndPoint = RB_FIND(NwGtpv1uTunnelEndPointIdentifierMap,
&(thiz->teidMap), &tunnelEndPointKey);
if(pTunnelEndPoint) {
NwGtpv1uMsgHandleT hMsg;
rc = nwGtpv1uMsgFromBufferNew( (NwGtpv1uStackHandleT)thiz,
(uint8_t *)gpdu,
gpduLen,
&hMsg);
/*
uint8_t* msgBuf;
uint32_t msgBufLen;
uint32_t msgBufOffset;
*/
if(NW_GTPV1U_OK == rc) {
NwGtpv1uMsgT *pMsg = (NwGtpv1uMsgT *) hMsg;
#if defined(LOG_GTPU) && LOG_GTPU > 0
GTPU_DEBUG("Received T-PDU over tunnel end-point '%x' of size %u (%u) (decapsulated %u)from "NW_IPV4_ADDR"\n",
ntohl(msgHdr->teid), gpduLen, pMsg->msgLen, pMsg->msgBufLen, NW_IPV4_ADDR_FORMAT((peerIp)));
#endif
MSC_LOG_RX_MESSAGE(
(thiz->stackType == GTPU_STACK_ENB) ? MSC_GTPU_ENB:MSC_GTPU_SGW,
(thiz->stackType == GTPU_STACK_ENB) ? MSC_GTPU_SGW:MSC_GTPU_ENB,
NULL,
0,
" G-PDU ltid %u size %u",
tunnelEndPointKey.teid,
gpduLen);
rc = nwGtpSessionSendMsgApiToUlpEntity(pTunnelEndPoint, pMsg);
}
} else {
MSC_LOG_RX_DISCARDED_MESSAGE(
(thiz->stackType == GTPU_STACK_ENB) ? MSC_GTPU_ENB:MSC_GTPU_SGW,
(thiz->stackType == GTPU_STACK_ENB) ? MSC_GTPU_SGW:MSC_GTPU_ENB,
NULL,
0,
" G-PDU ltid %u size %u",
tunnelEndPointKey.teid,
gpduLen);
GTPU_ERROR("Received T-PDU over non-existent tunnel end-point '%x' from "NW_IPV4_ADDR"\n",
ntohl(msgHdr->teid), NW_IPV4_ADDR_FORMAT((peerIp)));
}
#if defined(LOG_GTPU) && LOG_GTPU > 0
NW_LEAVE(thiz);
#endif
return rc;
}
