winckel
d8773fda4e
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5025 818b1a75-f10b-46b9-bf7c-635c3b92a50f
315 lines
12 KiB
C
315 lines
12 KiB
C
/*******************************************************************************
|
|
|
|
Eurecom OpenAirInterface
|
|
Copyright(c) 1999 - 2012 Eurecom
|
|
|
|
This program is free software; you can redistribute it and/or modify it
|
|
under the terms and conditions of the GNU General Public License,
|
|
version 2, as published by the Free Software Foundation.
|
|
|
|
This program is distributed in the hope it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
The full GNU General Public License is included in this distribution in
|
|
the file called "COPYING".
|
|
|
|
Contact Information
|
|
Openair Admin: openair_admin@eurecom.fr
|
|
Openair Tech : openair_tech@eurecom.fr
|
|
Forums : http://forums.eurecom.fr/openairinterface
|
|
Address : EURECOM, Campus SophiaTech, 450 Route des Chappes
|
|
06410 Biot FRANCE
|
|
|
|
*******************************************************************************/
|
|
|
|
#include <string.h>
|
|
|
|
#include "enb_app.h"
|
|
#include "enb_config.h"
|
|
#include "assertions.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"
|
|
# endif
|
|
|
|
extern unsigned char NB_eNB_INST;
|
|
#endif
|
|
|
|
#if defined(ENABLE_ITTI)
|
|
|
|
/*------------------------------------------------------------------------------*/
|
|
# if defined(ENABLE_USE_MME)
|
|
# define ENB_REGISTER_RETRY_DELAY 10
|
|
# endif
|
|
|
|
/*------------------------------------------------------------------------------*/
|
|
static void configure_phy(uint32_t enb_id, const Enb_properties_array_t *enb_properties)
|
|
{
|
|
MessageDef *msg_p;
|
|
|
|
msg_p = itti_alloc_new_message (TASK_ENB_APP, PHY_CONFIGURATION_REQ);
|
|
|
|
PHY_CONFIGURATION_REQ (msg_p).frame_type = enb_properties->properties[enb_id]->frame_type;
|
|
PHY_CONFIGURATION_REQ (msg_p).prefix_type = enb_properties->properties[enb_id]->prefix_type;
|
|
PHY_CONFIGURATION_REQ (msg_p).downlink_frequency = enb_properties->properties[enb_id]->downlink_frequency;
|
|
PHY_CONFIGURATION_REQ (msg_p).uplink_frequency_offset = enb_properties->properties[enb_id]->uplink_frequency_offset;
|
|
|
|
itti_send_msg_to_task (TASK_PHY_ENB, enb_id, msg_p);
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------*/
|
|
static void configure_rrc(uint32_t enb_id, const Enb_properties_array_t *enb_properties)
|
|
{
|
|
MessageDef *msg_p;
|
|
|
|
msg_p = itti_alloc_new_message (TASK_ENB_APP, RRC_CONFIGURATION_REQ);
|
|
|
|
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).default_drx = enb_properties->properties[enb_id]->default_drx;
|
|
RRC_CONFIGURATION_REQ (msg_p).frame_type = enb_properties->properties[enb_id]->frame_type;
|
|
|
|
itti_send_msg_to_task (TASK_RRC_ENB, enb_id, msg_p);
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------*/
|
|
# 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;
|
|
uint32_t mme_id;
|
|
MessageDef *msg_p;
|
|
uint32_t register_enb_pending = 0;
|
|
|
|
# if defined(OAI_EMU)
|
|
|
|
# endif
|
|
|
|
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);
|
|
|
|
s1ap_register_eNB = &S1AP_REGISTER_ENB_REQ(msg_p);
|
|
|
|
/* Some default/random parameters */
|
|
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->default_drx = enb_properties->properties[enb_id]->default_drx;
|
|
|
|
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));
|
|
}
|
|
|
|
itti_send_msg_to_task (TASK_S1AP, enb_id, msg_p);
|
|
|
|
register_enb_pending++;
|
|
}
|
|
}
|
|
|
|
return register_enb_pending;
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
/*------------------------------------------------------------------------------*/
|
|
void *eNB_app_task(void *args_p)
|
|
{
|
|
const Enb_properties_array_t *enb_properties;
|
|
#if defined(ENABLE_ITTI)
|
|
uint32_t enb_nb = 1; /* Default number of eNB is 1 */
|
|
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;
|
|
const char *msg_name;
|
|
instance_t instance;
|
|
int result;
|
|
|
|
itti_mark_task_ready (TASK_ENB_APP);
|
|
|
|
# if defined(ENABLE_USE_MME)
|
|
# 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
|
|
|
|
enb_properties = enb_config_get();
|
|
|
|
AssertFatal (enb_nb <= enb_properties->number,
|
|
"Number of eNB is greater than eNB defined in configuration file (%d/%d)!",
|
|
enb_nb, enb_properties->number);
|
|
|
|
for (enb_id = enb_id_start; (enb_id < enb_id_end) ; enb_id++)
|
|
{
|
|
configure_phy(enb_id, enb_properties);
|
|
configure_rrc(enb_id, enb_properties);
|
|
}
|
|
|
|
# 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);
|
|
# 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);
|
|
}
|
|
}
|
|
}
|
|
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 %d\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);
|
|
}
|
|
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;
|
|
}
|