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openairinterface5g/openair2/ENB_APP/enb_app.c
T
Cedric Roux 7757b9e7e7 import NFAPI work from David Price from Cisco (non-working commit, do not use it) 
It has been chosen to not include the full history of commits
from David. He included a binary version of wireshark, probably
a modified one that understands NFAPI. Wireshark is released under
the GPL license, we cannot include it in the repository. We could
have done a next commit to remove this binary. But then it would
still be present in the history of commits, which may not be allowed.
And it would take space on disk. We could edit the history to remove
wireshark entirely. But this operation is too complicated.

There was also a pcap capture file, which has nothing to do in
the history of commits and would take space on disk. There again,
it's too difficult to edit the history to remove it.

There was a file .gitignore that was also removed.

The original history can be found on David's repository:
https://gitlab.eurecom.fr/daveprice/openairinterface5g/
The branch is: nfapi-ru-rau-split.

A copy of that branch has been included in the internal OAI
repository, for those who have access to it.
The branch is the same. The last commit ID is
9106438239e0bc626ff1fa1d97d911caadd0fbb9.

You can compare the current commit with the commit 9106...
to see what differs.

The current commit has to be considered non-working.
The commit following the current commit will fix problems with
the work in the current commit.

If you use git bisect, don't spend time analyzing the current
commit.
2018-01-15 11:32:30 +01:00

469 lines
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*
enb_app.c
-------------------
AUTHOR : Laurent Winckel, Sebastien ROUX, Lionel GAUTHIER, Navid Nikaein
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr and Navid Nikaein
*/
#include <string.h>
#include <stdio.h>
#include "enb_app.h"
#include "enb_config.h"
#include "assertions.h"
#include "common/ran_context.h"
#include "log.h"
#if defined(OAI_EMU)
# include "OCG.h"
# include "OCG_extern.h"
#endif
#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
# include "timer.h"
# if defined(ENABLE_USE_MME)
# include "s1ap_eNB.h"
# include "sctp_eNB_task.h"
# include "gtpv1u_eNB_task.h"
# endif
#if defined(FLEXRAN_AGENT_SB_IF)
# include "flexran_agent.h"
#endif
extern unsigned char NB_eNB_INST;
#endif
extern RAN_CONTEXT_t RC;
#if defined(ENABLE_ITTI)
/*------------------------------------------------------------------------------*/
# if defined(ENABLE_USE_MME)
# define ENB_REGISTER_RETRY_DELAY 10
# endif
/*------------------------------------------------------------------------------*/
/*
static void configure_phy(module_id_t enb_id, const Enb_properties_array_t* enb_properties)
{
MessageDef *msg_p;
int CC_id;
msg_p = itti_alloc_new_message (TASK_ENB_APP, PHY_CONFIGURATION_REQ);
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
PHY_CONFIGURATION_REQ (msg_p).frame_type[CC_id] = enb_properties->properties[enb_id]->frame_type[CC_id];
PHY_CONFIGURATION_REQ (msg_p).prefix_type[CC_id] = enb_properties->properties[enb_id]->prefix_type[CC_id];
PHY_CONFIGURATION_REQ (msg_p).downlink_frequency[CC_id] = enb_properties->properties[enb_id]->downlink_frequency[CC_id];
PHY_CONFIGURATION_REQ (msg_p).uplink_frequency_offset[CC_id] = enb_properties->properties[enb_id]->uplink_frequency_offset[CC_id];
PHY_CONFIGURATION_REQ (msg_p).nb_antennas_tx[CC_id] = enb_properties->properties[enb_id]->nb_antennas_tx[CC_id];
PHY_CONFIGURATION_REQ (msg_p).nb_antennas_rx[CC_id] = enb_properties->properties[enb_id]->nb_antennas_rx[CC_id];
PHY_CONFIGURATION_REQ (msg_p).tx_gain[CC_id] = enb_properties->properties[enb_id]->tx_gain[CC_id];
PHY_CONFIGURATION_REQ (msg_p).rx_gain[CC_id] = enb_properties->properties[enb_id]->rx_gain[CC_id];
}
itti_send_msg_to_task (TASK_PHY_ENB, ENB_MODULE_ID_TO_INSTANCE(enb_id), msg_p);
}
*/
/*------------------------------------------------------------------------------*/
static void configure_rrc(uint32_t enb_id)
{
MessageDef *msg_p = NULL;
// int CC_id;
msg_p = itti_alloc_new_message (TASK_ENB_APP, RRC_CONFIGURATION_REQ);
if (RC.rrc[enb_id]) {
RCconfig_RRC(msg_p,enb_id, RC.rrc[enb_id]);
/*
RRC_CONFIGURATION_REQ (msg_p).cell_identity = enb_properties->properties[enb_id]->eNB_id;
RRC_CONFIGURATION_REQ (msg_p).tac = enb_properties->properties[enb_id]->tac;
RRC_CONFIGURATION_REQ (msg_p).mcc = enb_properties->properties[enb_id]->mcc;
RRC_CONFIGURATION_REQ (msg_p).mnc = enb_properties->properties[enb_id]->mnc;
RRC_CONFIGURATION_REQ (msg_p).mnc_digit_length = enb_properties->properties[enb_id]->mnc_digit_length;
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
RRC_CONFIGURATION_REQ (msg_p).frame_type[CC_id] = enb_properties->properties[enb_id]->frame_type[CC_id];
RRC_CONFIGURATION_REQ (msg_p).tdd_config[CC_id] = enb_properties->properties[enb_id]->tdd_config[CC_id];
RRC_CONFIGURATION_REQ (msg_p).tdd_config_s[CC_id] = enb_properties->properties[enb_id]->tdd_config_s[CC_id];
RRC_CONFIGURATION_REQ (msg_p).eutra_band[CC_id] = enb_properties->properties[enb_id]->eutra_band[CC_id];
// RACH-Config
RRC_CONFIGURATION_REQ (msg_p).rach_numberOfRA_Preambles[CC_id] = enb_properties->properties[enb_id]->rach_numberOfRA_Preambles[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_preamblesGroupAConfig[CC_id] = enb_properties->properties[enb_id]->rach_preamblesGroupAConfig[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_sizeOfRA_PreamblesGroupA[CC_id] = enb_properties->properties[enb_id]->rach_sizeOfRA_PreamblesGroupA[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_messageSizeGroupA[CC_id] = enb_properties->properties[enb_id]->rach_messageSizeGroupA[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_messagePowerOffsetGroupB[CC_id] = enb_properties->properties[enb_id]->rach_messagePowerOffsetGroupB[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_powerRampingStep[CC_id] = enb_properties->properties[enb_id]->rach_powerRampingStep[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_preambleInitialReceivedTargetPower[CC_id] = enb_properties->properties[enb_id]->rach_preambleInitialReceivedTargetPower[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_preambleTransMax[CC_id] = enb_properties->properties[enb_id]->rach_preambleTransMax[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_raResponseWindowSize[CC_id] = enb_properties->properties[enb_id]->rach_raResponseWindowSize[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_macContentionResolutionTimer[CC_id] = enb_properties->properties[enb_id]->rach_macContentionResolutionTimer[CC_id];
RRC_CONFIGURATION_REQ (msg_p).rach_maxHARQ_Msg3Tx[CC_id] = enb_properties->properties[enb_id]->rach_maxHARQ_Msg3Tx[CC_id];
// BCCH-Config
RRC_CONFIGURATION_REQ (msg_p).bcch_modificationPeriodCoeff[CC_id] = enb_properties->properties[enb_id]->bcch_modificationPeriodCoeff[CC_id];
// PCCH-Config
RRC_CONFIGURATION_REQ (msg_p).pcch_defaultPagingCycle[CC_id] = enb_properties->properties[enb_id]->pcch_defaultPagingCycle[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pcch_nB[CC_id] = enb_properties->properties[enb_id]->pcch_nB[CC_id];
// PRACH-Config
RRC_CONFIGURATION_REQ (msg_p).prach_root[CC_id] = enb_properties->properties[enb_id]->prach_root[CC_id];
RRC_CONFIGURATION_REQ (msg_p).prach_config_index[CC_id] = enb_properties->properties[enb_id]->prach_config_index[CC_id];
RRC_CONFIGURATION_REQ (msg_p).prach_high_speed[CC_id] = enb_properties->properties[enb_id]->prach_high_speed[CC_id];
RRC_CONFIGURATION_REQ (msg_p).prach_zero_correlation[CC_id] = enb_properties->properties[enb_id]->prach_zero_correlation[CC_id];
RRC_CONFIGURATION_REQ (msg_p).prach_freq_offset[CC_id] = enb_properties->properties[enb_id]->prach_freq_offset[CC_id];
// PDSCH-Config
RRC_CONFIGURATION_REQ (msg_p).pdsch_referenceSignalPower[CC_id] = enb_properties->properties[enb_id]->pdsch_referenceSignalPower[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pdsch_p_b[CC_id] = enb_properties->properties[enb_id]->pdsch_p_b[CC_id];
// PUSCH-Config
RRC_CONFIGURATION_REQ (msg_p).pusch_n_SB[CC_id] = enb_properties->properties[enb_id]->pusch_n_SB[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pusch_hoppingMode[CC_id] = enb_properties->properties[enb_id]->pusch_hoppingMode[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pusch_hoppingOffset[CC_id] = enb_properties->properties[enb_id]->pusch_hoppingOffset[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pusch_enable64QAM[CC_id] = enb_properties->properties[enb_id]->pusch_enable64QAM[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pusch_groupHoppingEnabled[CC_id] = enb_properties->properties[enb_id]->pusch_groupHoppingEnabled[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pusch_groupAssignment[CC_id] = enb_properties->properties[enb_id]->pusch_groupAssignment[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pusch_sequenceHoppingEnabled[CC_id] = enb_properties->properties[enb_id]->pusch_sequenceHoppingEnabled[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pusch_nDMRS1[CC_id] = enb_properties->properties[enb_id]->pusch_nDMRS1[CC_id];
// PUCCH-Config
RRC_CONFIGURATION_REQ (msg_p).pucch_delta_shift[CC_id] = enb_properties->properties[enb_id]->pucch_delta_shift[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pucch_nRB_CQI[CC_id] = enb_properties->properties[enb_id]->pucch_nRB_CQI[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pucch_nCS_AN[CC_id] = enb_properties->properties[enb_id]->pucch_nCS_AN[CC_id];
#if !defined(Rel10) && !defined(Rel14)
RRC_CONFIGURATION_REQ (msg_p).pucch_n1_AN[CC_id] = enb_properties->properties[enb_id]->pucch_n1_AN[CC_id];
#endif
// SRS Config
RRC_CONFIGURATION_REQ (msg_p).srs_enable[CC_id] = enb_properties->properties[enb_id]->srs_enable[CC_id];
RRC_CONFIGURATION_REQ (msg_p).srs_BandwidthConfig[CC_id] = enb_properties->properties[enb_id]->srs_BandwidthConfig[CC_id];
RRC_CONFIGURATION_REQ (msg_p).srs_SubframeConfig[CC_id] = enb_properties->properties[enb_id]->srs_SubframeConfig[CC_id];
RRC_CONFIGURATION_REQ (msg_p).srs_ackNackST[CC_id] = enb_properties->properties[enb_id]->srs_ackNackST[CC_id];
RRC_CONFIGURATION_REQ (msg_p).srs_MaxUpPts[CC_id] = enb_properties->properties[enb_id]->srs_MaxUpPts[CC_id];
// uplinkPowerControlCommon
RRC_CONFIGURATION_REQ (msg_p).pusch_p0_Nominal[CC_id] = enb_properties->properties[enb_id]->pusch_p0_Nominal[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pucch_p0_Nominal[CC_id] = enb_properties->properties[enb_id]->pucch_p0_Nominal[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pusch_alpha[CC_id] = enb_properties->properties[enb_id]->pusch_alpha[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pucch_deltaF_Format1[CC_id] = enb_properties->properties[enb_id]->pucch_deltaF_Format1[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pucch_deltaF_Format1b[CC_id] = enb_properties->properties[enb_id]->pucch_deltaF_Format1b[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pucch_deltaF_Format2[CC_id] = enb_properties->properties[enb_id]->pucch_deltaF_Format2[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pucch_deltaF_Format2a[CC_id] = enb_properties->properties[enb_id]->pucch_deltaF_Format2a[CC_id];
RRC_CONFIGURATION_REQ (msg_p).pucch_deltaF_Format2b[CC_id] = enb_properties->properties[enb_id]->pucch_deltaF_Format2b[CC_id];
RRC_CONFIGURATION_REQ (msg_p).msg3_delta_Preamble[CC_id] = enb_properties->properties[enb_id]->msg3_delta_Preamble[CC_id];
RRC_CONFIGURATION_REQ (msg_p).ul_CyclicPrefixLength[CC_id] = enb_properties->properties[enb_id]->ul_CyclicPrefixLength[CC_id];
// UE Timers and Constants
RRC_CONFIGURATION_REQ (msg_p).ue_TimersAndConstants_t300[CC_id] = enb_properties->properties[enb_id]->ue_TimersAndConstants_t300[CC_id];
RRC_CONFIGURATION_REQ (msg_p).ue_TimersAndConstants_t301[CC_id] = enb_properties->properties[enb_id]->ue_TimersAndConstants_t301[CC_id];
RRC_CONFIGURATION_REQ (msg_p).ue_TimersAndConstants_t310[CC_id] = enb_properties->properties[enb_id]->ue_TimersAndConstants_t310[CC_id];
RRC_CONFIGURATION_REQ (msg_p).ue_TimersAndConstants_n310[CC_id] = enb_properties->properties[enb_id]->ue_TimersAndConstants_n310[CC_id];
RRC_CONFIGURATION_REQ (msg_p).ue_TimersAndConstants_t311[CC_id] = enb_properties->properties[enb_id]->ue_TimersAndConstants_t311[CC_id];
RRC_CONFIGURATION_REQ (msg_p).ue_TimersAndConstants_n311[CC_id] = enb_properties->properties[enb_id]->ue_TimersAndConstants_n311[CC_id];
RRC_CONFIGURATION_REQ (msg_p).ue_TransmissionMode[CC_id] = enb_properties->properties[enb_id]->ue_TransmissionMode[CC_id];
}
*/
LOG_I(ENB_APP,"Sending configuration message to RRC task\n");
itti_send_msg_to_task (TASK_RRC_ENB, ENB_MODULE_ID_TO_INSTANCE(enb_id), msg_p);
}
else AssertFatal(0,"RRC context for eNB %d not allocated\n",enb_id);
}
/*------------------------------------------------------------------------------*/
# if defined(ENABLE_USE_MME)
static uint32_t eNB_app_register(uint32_t enb_id_start, uint32_t enb_id_end)//, const Enb_properties_array_t *enb_properties)
{
uint32_t enb_id;
MessageDef *msg_p;
uint32_t register_enb_pending = 0;
for (enb_id = enb_id_start; (enb_id < enb_id_end) ; enb_id++) {
# if defined(OAI_EMU)
if (oai_emulation.info.cli_start_enb[enb_id] == 1)
# endif
{
s1ap_register_enb_req_t *s1ap_register_eNB;
/* note: there is an implicit relationship between the data structure and the message name */
msg_p = itti_alloc_new_message (TASK_ENB_APP, S1AP_REGISTER_ENB_REQ);
RCconfig_S1(msg_p, enb_id);
if (enb_id == 0) RCconfig_gtpu();
s1ap_register_eNB = &S1AP_REGISTER_ENB_REQ(msg_p);
LOG_I(ENB_APP,"default drx %d\n",s1ap_register_eNB->default_drx);
/*
s1ap_register_eNB->eNB_id = enb_properties->properties[enb_id]->eNB_id;
s1ap_register_eNB->cell_type = enb_properties->properties[enb_id]->cell_type;
s1ap_register_eNB->eNB_name = enb_properties->properties[enb_id]->eNB_name;
s1ap_register_eNB->tac = enb_properties->properties[enb_id]->tac;
s1ap_register_eNB->mcc = enb_properties->properties[enb_id]->mcc;
s1ap_register_eNB->mnc = enb_properties->properties[enb_id]->mnc;
s1ap_register_eNB->mnc_digit_length = enb_properties->properties[enb_id]->mnc_digit_length;
s1ap_register_eNB->default_drx = enb_properties->properties[enb_id]->pcch_defaultPagingCycle[0];
s1ap_register_eNB->nb_mme = enb_properties->properties[enb_id]->nb_mme;
AssertFatal (s1ap_register_eNB->nb_mme <= S1AP_MAX_NB_MME_IP_ADDRESS, "Too many MME for eNB %d (%d/%d)!", enb_id, s1ap_register_eNB->nb_mme,
S1AP_MAX_NB_MME_IP_ADDRESS);
for (mme_id = 0; mme_id < s1ap_register_eNB->nb_mme; mme_id++) {
s1ap_register_eNB->mme_ip_address[mme_id].ipv4 = enb_properties->properties[enb_id]->mme_ip_address[mme_id].ipv4;
s1ap_register_eNB->mme_ip_address[mme_id].ipv6 = enb_properties->properties[enb_id]->mme_ip_address[mme_id].ipv6;
strncpy (s1ap_register_eNB->mme_ip_address[mme_id].ipv4_address,
enb_properties->properties[enb_id]->mme_ip_address[mme_id].ipv4_address,
sizeof(s1ap_register_eNB->mme_ip_address[0].ipv4_address));
strncpy (s1ap_register_eNB->mme_ip_address[mme_id].ipv6_address,
enb_properties->properties[enb_id]->mme_ip_address[mme_id].ipv6_address,
sizeof(s1ap_register_eNB->mme_ip_address[0].ipv6_address));
}
s1ap_register_eNB->sctp_in_streams = enb_properties->properties[enb_id]->sctp_in_streams;
s1ap_register_eNB->sctp_out_streams = enb_properties->properties[enb_id]->sctp_out_streams;
s1ap_register_eNB->enb_ip_address.ipv6 = 0;
s1ap_register_eNB->enb_ip_address.ipv4 = 1;
addr.s_addr = enb_properties->properties[enb_id]->enb_ipv4_address_for_S1_MME;
str = inet_ntoa(addr);
strcpy(s1ap_register_eNB->enb_ip_address.ipv4_address, str);
*/
LOG_I(ENB_APP,"[eNB %d] eNB_app_register for instance %d\n", enb_id, ENB_MODULE_ID_TO_INSTANCE(enb_id));
itti_send_msg_to_task (TASK_S1AP, ENB_MODULE_ID_TO_INSTANCE(enb_id), msg_p);
register_enb_pending++;
}
}
return register_enb_pending;
}
# endif
#endif
/*------------------------------------------------------------------------------*/
void *eNB_app_task(void *args_p)
{
#if defined(ENABLE_ITTI)
uint32_t enb_nb = RC.nb_inst;
uint32_t enb_id_start = 0;
uint32_t enb_id_end = enb_id_start + enb_nb;
# if defined(ENABLE_USE_MME)
uint32_t register_enb_pending;
uint32_t registered_enb;
long enb_register_retry_timer_id;
# endif
uint32_t enb_id;
MessageDef *msg_p = NULL;
const char *msg_name = NULL;
instance_t instance;
int result;
/* for no gcc warnings */
(void)instance;
itti_mark_task_ready (TASK_ENB_APP);
LOG_I(PHY, "%s() Task ready initialise structures\n", __FUNCTION__);
RCconfig_L1();
RCconfig_macrlc();
LOG_I(PHY, "%s() RC.nb_L1_inst:%d\n", __FUNCTION__, RC.nb_L1_inst);
if (RC.nb_L1_inst>0) AssertFatal(l1_north_init_eNB()==0,"could not initialize L1 north interface\n");
# if defined(ENABLE_ITTI)
# if defined(OAI_EMU)
enb_nb = oai_emulation.info.nb_enb_local;
enb_id_start = oai_emulation.info.first_enb_local;
enb_id_end = oai_emulation.info.first_enb_local + enb_nb;
AssertFatal (enb_id_end <= NUMBER_OF_eNB_MAX,
"Last eNB index is greater or equal to maximum eNB index (%d/%d)!",
enb_id_end, NUMBER_OF_eNB_MAX);
# endif
# endif
AssertFatal (enb_nb <= RC.nb_inst,
"Number of eNB is greater than eNB defined in configuration file (%d/%d)!",
enb_nb, RC.nb_inst);
LOG_I(ENB_APP,"Allocating eNB_RRC_INST for %d instances\n",RC.nb_inst);
RC.rrc = (eNB_RRC_INST **)malloc(RC.nb_inst*sizeof(eNB_RRC_INST *));
LOG_I(PHY, "%s() RC.nb_inst:%d RC.rrc:%p\n", __FUNCTION__, RC.nb_inst, RC.rrc);
for (enb_id = enb_id_start; (enb_id < enb_id_end) ; enb_id++) {
RC.rrc[enb_id] = (eNB_RRC_INST*)malloc(sizeof(eNB_RRC_INST));
LOG_I(PHY, "%s() Creating RRC instance RC.rrc[%d]:%p (%d of %d)\n", __FUNCTION__, enb_id, RC.rrc[enb_id], enb_id+1, enb_id_end);
memset((void *)RC.rrc[enb_id],0,sizeof(eNB_RRC_INST));
configure_rrc(enb_id);
}
#if defined (FLEXRAN_AGENT_SB_IF)
for (enb_id = enb_id_start; (enb_id < enb_id_end) ; enb_id++) {
printf("\n start enb agent %d\n", enb_id);
flexran_agent_start(enb_id, enb_properties_p);
}
#endif
# if defined(ENABLE_USE_MME)
/* Try to register each eNB */
registered_enb = 0;
register_enb_pending = eNB_app_register (enb_id_start, enb_id_end);//, enb_properties_p);
# else
/* Start L2L1 task */
msg_p = itti_alloc_new_message(TASK_ENB_APP, INITIALIZE_MESSAGE);
itti_send_msg_to_task(TASK_L2L1, INSTANCE_DEFAULT, msg_p);
# endif
do {
// Wait for a message
itti_receive_msg (TASK_ENB_APP, &msg_p);
msg_name = ITTI_MSG_NAME (msg_p);
instance = ITTI_MSG_INSTANCE (msg_p);
switch (ITTI_MSG_ID(msg_p)) {
case TERMINATE_MESSAGE:
itti_exit_task ();
break;
case MESSAGE_TEST:
LOG_I(ENB_APP, "Received %s\n", ITTI_MSG_NAME(msg_p));
break;
# if defined(ENABLE_USE_MME)
case S1AP_REGISTER_ENB_CNF:
LOG_I(ENB_APP, "[eNB %d] Received %s: associated MME %d\n", instance, msg_name,
S1AP_REGISTER_ENB_CNF(msg_p).nb_mme);
DevAssert(register_enb_pending > 0);
register_enb_pending--;
/* Check if at least eNB is registered with one MME */
if (S1AP_REGISTER_ENB_CNF(msg_p).nb_mme > 0) {
registered_enb++;
}
/* Check if all register eNB requests have been processed */
if (register_enb_pending == 0) {
if (registered_enb == enb_nb) {
/* If all eNB are registered, start L2L1 task */
MessageDef *msg_init_p;
msg_init_p = itti_alloc_new_message (TASK_ENB_APP, INITIALIZE_MESSAGE);
itti_send_msg_to_task (TASK_L2L1, INSTANCE_DEFAULT, msg_init_p);
# if defined(OAI_EMU)
/* Also inform all NAS UE tasks */
for (instance = NB_eNB_INST + oai_emulation.info.first_ue_local;
instance < (NB_eNB_INST + oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); instance ++) {
msg_init_p = itti_alloc_new_message (TASK_ENB_APP, INITIALIZE_MESSAGE);
itti_send_msg_to_task (TASK_NAS_UE, instance, msg_init_p);
}
# endif
} else {
uint32_t not_associated = enb_nb - registered_enb;
LOG_W(ENB_APP, " %d eNB %s not associated with a MME, retrying registration in %d seconds ...\n",
not_associated, not_associated > 1 ? "are" : "is", ENB_REGISTER_RETRY_DELAY);
/* Restart the eNB registration process in ENB_REGISTER_RETRY_DELAY seconds */
if (timer_setup (ENB_REGISTER_RETRY_DELAY, 0, TASK_ENB_APP, INSTANCE_DEFAULT, TIMER_ONE_SHOT,
NULL, &enb_register_retry_timer_id) < 0) {
LOG_E(ENB_APP, " Can not start eNB register retry timer, use \"sleep\" instead!\n");
sleep(ENB_REGISTER_RETRY_DELAY);
/* Restart the registration process */
registered_enb = 0;
register_enb_pending = eNB_app_register (enb_id_start, enb_id_end);//, enb_properties_p);
}
}
}
break;
case S1AP_DEREGISTERED_ENB_IND:
LOG_W(ENB_APP, "[eNB %d] Received %s: associated MME %d\n", instance, msg_name,
S1AP_DEREGISTERED_ENB_IND(msg_p).nb_mme);
/* TODO handle recovering of registration */
break;
case TIMER_HAS_EXPIRED:
LOG_I(ENB_APP, " Received %s: timer_id %ld\n", msg_name, TIMER_HAS_EXPIRED(msg_p).timer_id);
if (TIMER_HAS_EXPIRED (msg_p).timer_id == enb_register_retry_timer_id) {
/* Restart the registration process */
registered_enb = 0;
register_enb_pending = eNB_app_register (enb_id_start, enb_id_end);//, enb_properties_p);
}
break;
# endif
default:
LOG_E(ENB_APP, "Received unexpected message %s\n", msg_name);
break;
}
result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), msg_p);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
} while (1);
#endif
return NULL;
}
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