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openairinterface5g/openair3/M3AP/m3ap_MCE.c
Robert Schmidt 8107939f08 Change OAI license to CSSL v1.0 (and others) 
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
  scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly

For automated changes based on OAI PL v1.1:

    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
    perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml

The rest (cmake, files with missing license, cmake) manually.
2026-03-27 16:36:37 +01:00

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/*
* SPDX-License-Identifier: LicenseRef-CSSL-1.0
*/
/*!
* \brief m3ap tasks for MCE
*/
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <arpa/inet.h>
#include "intertask_interface.h"
#include "m3ap_MCE.h"
#include "m3ap_MCE_defs.h"
#include "m3ap_MCE_management_procedures.h"
#include "m3ap_MCE_handler.h"
//#include "m3ap_MCE_generate_messages.h"
#include "m3ap_common.h"
#include "m3ap_MCE_interface_management.h"
#include "m3ap_ids.h"
#include "m3ap_timers.h"
#include "queue.h"
#include "assertions.h"
#include "conversions.h"
struct m3ap_mce_map;
struct m3ap_MCE_data_s;
m3ap_setup_req_t * m3ap_mce_data_g;
RB_PROTOTYPE(m3ap_mce_map, m3ap_MCE_data_s, entry, m3ap_MCE_compare_assoc_id);
static
void m3ap_MCE_handle_sctp_data_ind(instance_t instance, sctp_data_ind_t *sctp_data_ind);
static
void m3ap_MCE_handle_sctp_association_resp(instance_t instance, sctp_new_association_resp_t *sctp_new_association_resp);
static
void m3ap_MCE_handle_sctp_association_ind(instance_t instance, sctp_new_association_ind_t *sctp_new_association_ind);
static
void m3ap_MCE_handle_register_MCE(instance_t instance,
m3ap_register_mce_req_t *m3ap_register_MME);
static
void m3ap_MCE_register_MCE(m3ap_MCE_instance_t *instance_p,
net_ip_address_t *target_MME_ip_addr,
net_ip_address_t *local_ip_addr,
uint16_t in_streams,
uint16_t out_streams,
uint32_t mce_port_for_M3C,
int multi_sd);
//static
//void m3ap_eNB_handle_handover_req(instance_t instance,
// m3ap_handover_req_t *m3ap_handover_req);
//
//static
//void m3ap_eNB_handle_handover_req_ack(instance_t instance,
// m3ap_handover_req_ack_t *m3ap_handover_req_ack);
//
//static
//void m3ap_eNB_ue_context_release(instance_t instance,
// m3ap_ue_context_release_t *m3ap_ue_context_release);
//
static
void m3ap_MCE_handle_sctp_data_ind(instance_t instance, sctp_data_ind_t *sctp_data_ind) {
int result;
DevAssert(sctp_data_ind != NULL);
m3ap_MCE_handle_message(instance, sctp_data_ind->assoc_id, sctp_data_ind->stream,
sctp_data_ind->buffer, sctp_data_ind->buffer_length);
result = itti_free(TASK_UNKNOWN, sctp_data_ind->buffer);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
}
static
void m3ap_MCE_handle_sctp_association_resp(instance_t instance, sctp_new_association_resp_t *sctp_new_association_resp) {
m3ap_MCE_instance_t *instance_p;
m3ap_MCE_data_t *m3ap_mce_data_p;
DevAssert(sctp_new_association_resp != NULL);
//printf("m3ap_eNB_handle_sctp_association_resp at 1\n");
//dump_trees();
instance_p = m3ap_MCE_get_instance(instance);
DevAssert(instance_p != NULL);
/* if the assoc_id is already known, it is certainly because an IND was received
* before. In this case, just update streams and return
*/
if (sctp_new_association_resp->assoc_id != -1) {
m3ap_mce_data_p = m3ap_get_MCE(instance_p, sctp_new_association_resp->assoc_id,
sctp_new_association_resp->ulp_cnx_id);
if (m3ap_mce_data_p != NULL) {
/* some sanity check - to be refined at some point */
if (sctp_new_association_resp->sctp_state != SCTP_STATE_ESTABLISHED) {
M3AP_ERROR("m3ap_mce_data_p not NULL and sctp state not SCTP_STATE_ESTABLISHED, what to do?\n");
abort();
}
m3ap_mce_data_p->in_streams = sctp_new_association_resp->in_streams;
m3ap_mce_data_p->out_streams = sctp_new_association_resp->out_streams;
return;
}
}
m3ap_mce_data_p = m3ap_get_MCE(instance_p, -1,
sctp_new_association_resp->ulp_cnx_id);
DevAssert(m3ap_mce_data_p != NULL);
//printf("m3ap_MCE_handle_sctp_association_resp at 2\n");
//dump_trees_m3();
if (sctp_new_association_resp->sctp_state != SCTP_STATE_ESTABLISHED) {
M3AP_WARN("Received unsuccessful result for SCTP association (%u), instance %ld, cnx_id %u\n",
sctp_new_association_resp->sctp_state,
instance,
sctp_new_association_resp->ulp_cnx_id);
//m3ap_handle_m3_setup_message(instance_p, m3ap_enb_data_p,
//sctp_new_association_resp->sctp_state == SCTP_STATE_SHUTDOWN);
sleep(4);
int index;
/* Trying to connect to the provided list of eNB ip address */
for (index = 0; index < instance_p->nb_m3; index++) {
//M2AP_INFO("eNB[%d] eNB id %u acting as an initiator (client)\n",
// instance_id, instance->eNB_id);
m3ap_MCE_register_MCE(instance_p,
&instance_p->target_mme_m3_ip_address[index],
&instance_p->mme_m3_ip_address,
instance_p->sctp_in_streams,
instance_p->sctp_out_streams,
instance_p->mce_port_for_M3C,
instance_p->multi_sd);
}
return;
}
//printf("m3ap_MCE_handle_sctp_association_resp at 3\n");
//dump_trees_m3();
/* Update parameters */
m3ap_mce_data_p->assoc_id = sctp_new_association_resp->assoc_id;
m3ap_mce_data_p->in_streams = sctp_new_association_resp->in_streams;
m3ap_mce_data_p->out_streams = sctp_new_association_resp->out_streams;
//printf("m3ap_MCE_handle_sctp_association_resp at 4\n");
//dump_trees_m3();
m3ap_mce_data_g->assoc_id = sctp_new_association_resp->assoc_id;
m3ap_mce_data_g->sctp_in_streams = sctp_new_association_resp->in_streams;
m3ap_mce_data_g->sctp_out_streams = sctp_new_association_resp->out_streams;
/* Prepare new m3 Setup Request */
//m3ap_eNB_generate_m3_setup_request(instance_p, m3ap_enb_data_p);
MCE_send_M3_SETUP_REQUEST(instance_p, m3ap_mce_data_p);
}
static
void m3ap_MCE_handle_sctp_association_ind(instance_t instance, sctp_new_association_ind_t *sctp_new_association_ind) {
m3ap_MCE_instance_t *instance_p;
m3ap_MCE_data_t *m3ap_mce_data_p;
//printf("m3ap_MCE_handle_sctp_association_ind at 1 (called for instance %d)\n", instance);
//dump_trees_m3();
DevAssert(sctp_new_association_ind != NULL);
instance_p = m3ap_MCE_get_instance(instance);
DevAssert(instance_p != NULL);
m3ap_mce_data_p = m3ap_get_MCE(instance_p, sctp_new_association_ind->assoc_id, -1);
if (m3ap_mce_data_p != NULL) abort();
// DevAssert(m3ap_mce_data_p != NULL);
if (m3ap_mce_data_p == NULL) {
/* Create new MCE descriptor */
m3ap_mce_data_p = calloc(1, sizeof(*m3ap_mce_data_p));
DevAssert(m3ap_mce_data_p != NULL);
m3ap_mce_data_p->cnx_id = m3ap_MCE_fetch_add_global_cnx_id();
m3ap_mce_data_p->m3ap_MCE_instance = instance_p;
/* Insert the new descriptor in list of known eNB
* but not yet associated.
*/
RB_INSERT(m3ap_mce_map, &instance_p->m3ap_mce_head, m3ap_mce_data_p);
m3ap_mce_data_p->state = M3AP_MCE_STATE_CONNECTED;
instance_p->m3_target_mme_nb++;
if (instance_p->m3_target_mme_pending_nb > 0) {
instance_p->m3_target_mme_pending_nb--;
}
} else {
M3AP_WARN("m3ap_mce_data_p already exists\n");
}
//printf("m3ap_MCE_handle_sctp_association_ind at 2\n");
//dump_trees_m3();
/* Update parameters */
m3ap_mce_data_p->assoc_id = sctp_new_association_ind->assoc_id;
m3ap_mce_data_p->in_streams = sctp_new_association_ind->in_streams;
m3ap_mce_data_p->out_streams = sctp_new_association_ind->out_streams;
//printf("m3ap_MCE_handle_sctp_association_ind at 3\n");
//dump_trees_m3();
}
int m3ap_MCE_init_sctp (m3ap_MCE_instance_t *instance_p,
net_ip_address_t *local_ip_addr,
uint32_t mce_port_for_M3C) {
// Create and alloc new message
DevAssert(instance_p != NULL);
DevAssert(local_ip_addr != NULL);
size_t addr_len = strlen(local_ip_addr->ipv4_address) + 1;
MessageDef *message = itti_alloc_new_message_sized(TASK_M3AP_MCE, 0, SCTP_INIT_MSG_MULTI_REQ, sizeof(sctp_init_t) + addr_len);
sctp_init_t *sctp_init = &message->ittiMsg.sctp_init_multi;
sctp_init->port = mce_port_for_M3C;
sctp_init->ppid = M3AP_SCTP_PPID;
char *addr_buf = (char *) (sctp_init + 1);
sctp_init->bind_address = addr_buf;
memcpy(addr_buf, local_ip_addr->ipv4_address, addr_len);
return itti_send_msg_to_task (TASK_SCTP, instance_p->instance, message);
}
static void m3ap_MCE_register_MCE(m3ap_MCE_instance_t *instance_p,
net_ip_address_t *target_MCE_ip_address,
net_ip_address_t *local_ip_addr,
uint16_t in_streams,
uint16_t out_streams,
uint32_t mce_port_for_M3C,
int multi_sd) {
MessageDef *message = NULL;
sctp_new_association_req_multi_t *sctp_new_association_req = NULL;
m3ap_MCE_data_t *m3ap_mce_data = NULL;
DevAssert(instance_p != NULL);
DevAssert(target_MCE_ip_address != NULL);
message = itti_alloc_new_message(TASK_M3AP_MCE, 0, SCTP_NEW_ASSOCIATION_REQ_MULTI);
sctp_new_association_req = &message->ittiMsg.sctp_new_association_req_multi;
sctp_new_association_req->port = mce_port_for_M3C;
sctp_new_association_req->ppid = M3AP_SCTP_PPID;
sctp_new_association_req->in_streams = in_streams;
sctp_new_association_req->out_streams = out_streams;
sctp_new_association_req->multi_sd = multi_sd;
memcpy(&sctp_new_association_req->remote_address,
target_MCE_ip_address,
sizeof(*target_MCE_ip_address));
memcpy(&sctp_new_association_req->local_address,
local_ip_addr,
sizeof(*local_ip_addr));
/* Create new MCE descriptor */
m3ap_mce_data = calloc(1, sizeof(*m3ap_mce_data));
DevAssert(m3ap_mce_data != NULL);
m3ap_mce_data->cnx_id = m3ap_MCE_fetch_add_global_cnx_id();
sctp_new_association_req->ulp_cnx_id = m3ap_mce_data->cnx_id;
m3ap_mce_data->assoc_id = -1;
m3ap_mce_data->m3ap_MCE_instance = instance_p;
/* Insert the new descriptor in list of known eNB
* but not yet associated.
*/
m3ap_mce_data_g = (m3ap_setup_req_t*)calloc(1,sizeof(m3ap_setup_req_t));
RB_INSERT(m3ap_mce_map, &instance_p->m3ap_mce_head, m3ap_mce_data);
m3ap_mce_data->state = M3AP_MCE_STATE_WAITING;
instance_p->m3_target_mme_nb ++;
instance_p->m3_target_mme_pending_nb ++;
itti_send_msg_to_task(TASK_SCTP, instance_p->instance, message);
}
static
void m3ap_MCE_handle_register_MCE(instance_t instance,
m3ap_register_mce_req_t *m3ap_register_MCE) {
m3ap_MCE_instance_t *new_instance;
DevAssert(m3ap_register_MCE != NULL);
/* Look if the provided instance already exists */
new_instance = m3ap_MCE_get_instance(instance);
if (new_instance != NULL) {
/* Checks if it is a retry on the same MCE */
DevCheck(new_instance->MCE_id == m3ap_register_MCE->MCE_id, new_instance->MCE_id, m3ap_register_MCE->MCE_id, 0);
DevCheck(new_instance->cell_type == m3ap_register_MCE->cell_type, new_instance->cell_type, m3ap_register_MCE->cell_type, 0);
DevCheck(new_instance->tac == m3ap_register_MCE->tac, new_instance->tac, m3ap_register_MCE->tac, 0);
DevCheck(new_instance->mcc == m3ap_register_MCE->mcc, new_instance->mcc, m3ap_register_MCE->mcc, 0);
DevCheck(new_instance->mnc == m3ap_register_MCE->mnc, new_instance->mnc, m3ap_register_MCE->mnc, 0);
M3AP_WARN("MCE[%ld] already registered\n", instance);
} else {
new_instance = calloc(1, sizeof(m3ap_MCE_instance_t));
DevAssert(new_instance != NULL);
RB_INIT(&new_instance->m3ap_mce_head);
/* Copy usefull parameters */
new_instance->instance = instance;
new_instance->MCE_name = m3ap_register_MCE->MCE_name;
new_instance->MCE_id = m3ap_register_MCE->MCE_id;
new_instance->cell_type = m3ap_register_MCE->cell_type;
new_instance->tac = m3ap_register_MCE->tac;
new_instance->mcc = m3ap_register_MCE->mcc;
new_instance->mnc = m3ap_register_MCE->mnc;
new_instance->mnc_digit_length = m3ap_register_MCE->mnc_digit_length;
new_instance->num_cc = m3ap_register_MCE->num_cc;
m3ap_id_manager_init(&new_instance->id_manager);
m3ap_timers_init(&new_instance->timers,
m3ap_register_MCE->t_reloc_prep,
m3ap_register_MCE->tm3_reloc_overall);
for (int i = 0; i< m3ap_register_MCE->num_cc; i++) {
new_instance->eutra_band[i] = m3ap_register_MCE->eutra_band[i];
new_instance->downlink_frequency[i] = m3ap_register_MCE->downlink_frequency[i];
new_instance->uplink_frequency_offset[i] = m3ap_register_MCE->uplink_frequency_offset[i];
new_instance->Nid_cell[i] = m3ap_register_MCE->Nid_cell[i];
new_instance->N_RB_DL[i] = m3ap_register_MCE->N_RB_DL[i];
new_instance->frame_type[i] = m3ap_register_MCE->frame_type[i];
new_instance->fdd_earfcn_DL[i] = m3ap_register_MCE->fdd_earfcn_DL[i];
new_instance->fdd_earfcn_UL[i] = m3ap_register_MCE->fdd_earfcn_UL[i];
}
DevCheck(m3ap_register_MCE->nb_m3 <= M3AP_MAX_NB_MCE_IP_ADDRESS,
M3AP_MAX_NB_MCE_IP_ADDRESS, m3ap_register_MCE->nb_m3, 0);
memcpy(new_instance->target_mme_m3_ip_address,
m3ap_register_MCE->target_mme_m3_ip_address,
m3ap_register_MCE->nb_m3 * sizeof(net_ip_address_t));
new_instance->nb_m3 = m3ap_register_MCE->nb_m3;
new_instance->mme_m3_ip_address = m3ap_register_MCE->mme_m3_ip_address;
new_instance->sctp_in_streams = m3ap_register_MCE->sctp_in_streams;
new_instance->sctp_out_streams = m3ap_register_MCE->sctp_out_streams;
new_instance->mce_port_for_M3C = m3ap_register_MCE->mme_port_for_M3C;
/* Add the new instance to the list of MCE (meaningfull in virtual mode) */
m3ap_MCE_insert_new_instance(new_instance);
M3AP_INFO("Registered new MCE[%ld] and %s MCE id %u\n",
instance,
m3ap_register_MCE->cell_type == CELL_MACRO_ENB ? "macro" : "home",
m3ap_register_MCE->MCE_id);
printf("ipv4_address %s\n",m3ap_register_MCE->mme_m3_ip_address.ipv4_address);
/* initiate the SCTP listener */
if (m3ap_MCE_init_sctp(new_instance,&m3ap_register_MCE->mme_m3_ip_address,m3ap_register_MCE->mme_port_for_M3C) < 0 ) {
M3AP_ERROR ("Error while sending SCTP_INIT_MSG to SCTP \n");
return;
}
M3AP_INFO("MCE[%ld] MCE id %u acting as a listner (server)\n",
instance, m3ap_register_MCE->MCE_id);
}
}
static
void m3ap_MCE_handle_sctp_init_msg_multi_cnf(
instance_t instance_id,
sctp_init_msg_multi_cnf_t *m) {
m3ap_MCE_instance_t *instance;
int index;
DevAssert(m != NULL);
instance = m3ap_MCE_get_instance(instance_id);
DevAssert(instance != NULL);
instance->multi_sd = m->multi_sd;
/* Exit if CNF message reports failure.
* Failure means multi_sd < 0.
*/
if (instance->multi_sd < 0) {
M3AP_ERROR("Error: be sure to properly configure M3 in your configuration file.\n");
DevAssert(instance->multi_sd >= 0);
}
/* Trying to connect to the provided list of MCE ip address */
for (index = 0; index < instance->nb_m3; index++) {
M3AP_INFO("MCE[%ld] MCE id %u acting as an initiator (client)\n",
instance_id, instance->MCE_id);
m3ap_MCE_register_MCE(instance,
&instance->target_mme_m3_ip_address[index],
&instance->mme_m3_ip_address,
instance->sctp_in_streams,
instance->sctp_out_streams,
instance->mce_port_for_M3C,
instance->multi_sd);
}
}
//static
//void m3ap_eNB_handle_handover_req(instance_t instance,
// m3ap_handover_req_t *m3ap_handover_req)
//{
// m3ap_eNB_instance_t *instance_p;
// m3ap_eNB_data_t *target;
// m3ap_id_manager *id_manager;
// int ue_id;
//
// int target_pci = m3ap_handover_req->target_physCellId;
//
// instance_p = m3ap_eNB_get_instance(instance);
// DevAssert(instance_p != NULL);
//
// target = m3ap_is_eNB_pci_in_list(target_pci);
// DevAssert(target != NULL);
//
// /* allocate m3ap ID */
// id_manager = &instance_p->id_manager;
// ue_id = m3ap_allocate_new_id(id_manager);
// if (ue_id == -1) {
// M3AP_ERROR("could not allocate a new M3AP UE ID\n");
// /* TODO: cancel handover: send (to be defined) message to RRC */
// exit(1);
// }
// /* id_source is ue_id, id_target is unknown yet */
// m3ap_set_ids(id_manager, ue_id, m3ap_handover_req->rnti, ue_id, -1);
// m3ap_id_set_state(id_manager, ue_id, M2ID_STATE_SOURCE_PREPARE);
// m3ap_set_reloc_prep_timer(id_manager, ue_id,
// m3ap_timer_get_tti(&instance_p->timers));
// m3ap_id_set_target(id_manager, ue_id, target);
//
// m3ap_eNB_generate_m3_handover_request(instance_p, target, m3ap_handover_req, ue_id);
//}
//static
//void m3ap_eNB_handle_handover_req_ack(instance_t instance,
// m3ap_handover_req_ack_t *m3ap_handover_req_ack)
//{
// /* TODO: remove this hack (the goal is to find the correct
// * eNodeB structure for the other end) - we need a proper way for RRC
// * and M3AP to identify eNodeBs
// * RRC knows about mod_id and M3AP knows about eNB_id (eNB_ID in
// * the configuration file)
// * as far as I understand.. CROUX
// */
// m3ap_eNB_instance_t *instance_p;
// m3ap_eNB_data_t *target;
// int source_assoc_id = m3ap_handover_req_ack->source_assoc_id;
// int ue_id;
// int id_source;
// int id_target;
//
// instance_p = m3ap_eNB_get_instance(instance);
// DevAssert(instance_p != NULL);
//
// target = m3ap_get_eNB(NULL, source_assoc_id, 0);
// DevAssert(target != NULL);
//
// /* rnti is a new information, save it */
// ue_id = m3ap_handover_req_ack->m3_id_target;
// id_source = m3ap_id_get_id_source(&instance_p->id_manager, ue_id);
// id_target = ue_id;
// m3ap_set_ids(&instance_p->id_manager, ue_id, m3ap_handover_req_ack->rnti, id_source, id_target);
//
// m3ap_eNB_generate_m3_handover_request_ack(instance_p, target, m3ap_handover_req_ack);
//}
//
//static
//void m3ap_eNB_ue_context_release(instance_t instance,
// m3ap_ue_context_release_t *m3ap_ue_context_release)
//{
// m3ap_eNB_instance_t *instance_p;
// m3ap_eNB_data_t *target;
// int source_assoc_id = m3ap_ue_context_release->source_assoc_id;
// int ue_id;
// instance_p = m3ap_eNB_get_instance(instance);
// DevAssert(instance_p != NULL);
//
// target = m3ap_get_eNB(NULL, source_assoc_id, 0);
// DevAssert(target != NULL);
//
// m3ap_eNB_generate_m3_ue_context_release(instance_p, target, m3ap_ue_context_release);
//
// /* free the M3AP UE ID */
// ue_id = m3ap_find_id_from_rnti(&instance_p->id_manager, m3ap_ue_context_release->rnti);
// if (ue_id == -1) {
// M3AP_ERROR("could not find UE %x\n", m3ap_ue_context_release->rnti);
// exit(1);
// }
// m3ap_release_id(&instance_p->id_manager, ue_id);
//}
uint8_t m3ap_m3setup[] = {
0x00, 0x07, 0x00, 0x23, 0x00, 0x00, 0x03, 0x00,
0x12, 0x00, 0x07, 0x40, 0x55, 0xf5, 0x01, 0x00,
0x25, 0x00, 0x00, 0x13, 0x40, 0x0a, 0x03, 0x80,
0x4d, 0x33, 0x2d, 0x65, 0x4e, 0x42, 0x33, 0x37,
0x00, 0x14, 0x00, 0x03, 0x01, 0x00, 0x01
};
uint8_t m3ap_start[] = {
0x00, 0x00, 0x00, 0x4b, 0x00, 0x00, 0x07, 0x00,
0x00, 0x00, 0x02, 0x00, 0x01, 0x00, 0x02, 0x00,
0x07, 0x00, 0x55, 0xf5, 0x01, 0x00, 0x00, 0x01,
0x00, 0x04, 0x00, 0x0d, 0x60, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x40, 0x01,
0x7a, 0x00, 0x05, 0x00, 0x03, 0x07, 0x08, 0x00,
0x00, 0x06, 0x00, 0x04, 0x03, 0x00, 0x00, 0x00,
0x00, 0x10, 0x00, 0x01, 0x00, 0x00, 0x07, 0x00,
0x0e, 0x00, 0xe8, 0x0a, 0x0a, 0x0a, 0x00, 0x0a,
0xc8, 0x0a, 0xfe, 0x00, 0x00, 0x00, 0x01
};
void *m3ap_MCE_task(void *arg) {
MessageDef *received_msg = NULL;
int result;
M3AP_DEBUG("Starting M3AP MCE layer\n");
m3ap_MCE_prepare_internal_data();
itti_mark_task_ready(TASK_M3AP_MCE);
while (1) {
itti_receive_msg(TASK_M3AP_MCE, &received_msg);
switch (ITTI_MSG_ID(received_msg)) {
case MESSAGE_TEST:
// LOG_W(M3AP,"MCE Received Test Message ... TODO\n");
// //MessageDef * message_p = itti_alloc_new_message(TASK_M3AP, 0, MESSAGE_TEST);
// //itti_send_msg_to_task(TASK_M2AP_ENB, 1/*ctxt_pP->module_id*/, message_p);
//
// asn_dec_rval_t dec_ret;
//
//
// uint8_t *buffer;
// uint32_t len;
// M3AP_M3AP_PDU_t pdu;
// memset(&pdu, 0, sizeof(pdu));
//
// buffer = &m3ap_m3setup[0];
// //buffer = &m3ap_start[0];
// len=8*4+7;
// //len=8*9+7;
//
// //if (m3ap_decode_pdu(&pdu, buffer, len) < 0) {
// // LOG_E(M3AP, "Failed to decode PDU\n");
// //re//turn -1;
// //}
// M3AP_M3AP_PDU_t *pdu2 = &pdu;
// dec_ret = aper_decode(NULL,
// &asn_DEF_M3AP_M3AP_PDU,
// (void **)&pdu2,
// buffer,
// len,
// 0,
// 0);
//
// LOG_W(M3AP,"Trying to print %d\n",(dec_ret.code == RC_OK));
// xer_fprint(stdout, &asn_DEF_M3AP_M3AP_PDU, &pdu);
// LOG_W(M3AP,"Trying to print out \n");
break;
case TERMINATE_MESSAGE:
M3AP_WARN(" *** Exiting M3AP thread\n");
itti_exit_task();
break;
case M3AP_SUBFRAME_PROCESS:
m3ap_check_timers(ITTI_MSG_DESTINATION_INSTANCE(received_msg));
break;
case M3AP_REGISTER_MCE_REQ:
LOG_I(M3AP,"MCE Received M3AP_REGISTER_MCE_REQ Message\n");
m3ap_MCE_handle_register_MCE(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
&M3AP_REGISTER_MCE_REQ(received_msg));
break;
case M3AP_MBMS_SESSION_START_RESP:
LOG_I(M3AP,"MCE M3AP_MBMS_SESSION_START_RESP Message\n");
MCE_send_MBMS_SESSION_START_RESPONSE(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
&M3AP_MBMS_SESSION_START_RESP(received_msg));
break;
case M3AP_MBMS_SESSION_STOP_RESP:
LOG_I(M3AP,"MCE M3AP_MBMS_SESSION_STOP_RESP Message\n");
MCE_send_MBMS_SESSION_STOP_RESPONSE(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
&M3AP_MBMS_SESSION_START_RESP(received_msg));
break;
case M3AP_MBMS_SESSION_UPDATE_RESP:
LOG_I(M3AP,"MCE M3AP_MBMS_SESSION_UPDATE_RESP Message\n");
//MCE_send_MBMS_SESSION_UPDATE_RESPONSE(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
//&M3AP_MBMS_SESSION_START_RESP(received_msg));
break;
// case M3AP_HANDOVER_REQ:
// m3ap_eNB_handle_handover_req(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
// &M3AP_HANDOVER_REQ(received_msg));
// break;
//
// case M3AP_HANDOVER_REQ_ACK:
// m3ap_eNB_handle_handover_req_ack(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
// &M3AP_HANDOVER_REQ_ACK(received_msg));
// break;
//
// case M3AP_UE_CONTEXT_RELEASE:
// m3ap_eNB_ue_context_release(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
// &M3AP_UE_CONTEXT_RELEASE(received_msg));
// break;
//
case SCTP_INIT_MSG_MULTI_CNF:
LOG_D(M3AP,"MCE Received SCTP_INIT_MSG_MULTI_CNF Message\n");
m3ap_MCE_handle_sctp_init_msg_multi_cnf(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
&received_msg->ittiMsg.sctp_init_msg_multi_cnf);
break;
case SCTP_NEW_ASSOCIATION_RESP:
LOG_D(M3AP,"MCE Received SCTP_NEW_ASSOCIATION_RESP Message\n");
m3ap_MCE_handle_sctp_association_resp(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
&received_msg->ittiMsg.sctp_new_association_resp);
break;
case SCTP_NEW_ASSOCIATION_IND:
LOG_D(M3AP,"MCE Received SCTP_NEW_ASSOCIATION Message\n");
m3ap_MCE_handle_sctp_association_ind(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
&received_msg->ittiMsg.sctp_new_association_ind);
break;
case SCTP_DATA_IND:
LOG_D(M3AP,"MCE Received SCTP_DATA_IND Message\n");
m3ap_MCE_handle_sctp_data_ind(ITTI_MSG_DESTINATION_INSTANCE(received_msg),
&received_msg->ittiMsg.sctp_data_ind);
break;
default:
M3AP_ERROR("Received unhandled message: %d:%s\n",
ITTI_MSG_ID(received_msg), ITTI_MSG_NAME(received_msg));
break;
}
result = itti_free (ITTI_MSG_ORIGIN_ID(received_msg), received_msg);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
received_msg = NULL;
}
return NULL;
}
#include "common/config/config_userapi.h"
int is_m3ap_MCE_enabled(void)
{
static volatile int config_loaded = 0;
static volatile int enabled = 0;
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
if (pthread_mutex_lock(&mutex)) goto mutex_error;
if (config_loaded) {
if (pthread_mutex_unlock(&mutex)) goto mutex_error;
return enabled;
}
char *enable_m3 = NULL;
paramdef_t p[] = {
{ "enable_mce_m3", "yes/no", 0, .strptr=&enable_m3, .defstrval="", TYPE_STRING, 0 }
};
/* TODO: do it per module - we check only first MCE */
config_get(config_get_if(), p, sizeofArray(p), "MCEs.[0]");
if (enable_m3 != NULL && strcmp(enable_m3, "yes") == 0)
enabled = 1;
config_loaded = 1;
if (pthread_mutex_unlock(&mutex)) goto mutex_error;
return enabled;
mutex_error:
LOG_E(M3AP, "mutex error\n");
exit(1);
}
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