Commit 90231b57 authored by gauthier's avatar gauthier

Still under construction

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7642 818b1a75-f10b-46b9-bf7c-635c3b92a50f
parent 1d091eff
#!/usr/bin/python
# -*- coding: utf-8 -*-
################################################################################
# OpenAirInterface
# Copyright(c) 1999 - 2014 Eurecom
#
# OpenAirInterface is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
#
# OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
# included in this distribution in the file called "COPYING". If not,
# see <http://www.gnu.org/licenses/>.
#
# Contact Information
# OpenAirInterface Admin: openair_admin@eurecom.fr
# OpenAirInterface Tech : openair_tech@eurecom.fr
# OpenAirInterface Dev : openair4g-devel@eurecom.fr
#
# Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
#
################################################################################
import sys
import subprocess
import re
import socket
import datetime
from datetime import date
import os, errno
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("--pcap_file", "-p", type=str,help="input pcap file to be translated")
args = parser.parse_args()
pcap_file = args.pcap_file.strip()
pcap_dissected_file = subprocess.check_output(["tshark", '-V', '-r' , pcap_file], stderr=subprocess.STDOUT)
pcap_hex_file = subprocess.check_output(["tshark", '-x', '-O', 'sctp', '-r', pcap_file])
pcap_dissected_list = []
# split file content in lines
lines = pcap_dissected_file.splitlines()
message = {}
item_index = 0;
item_string = " "
fsm_state="search_frame"
for line in lines:
print ("INPUT LINE: %s " % line)
line = line.strip()
if line != "":
if fsm_state == "search_frame":
if line.startswith("Frame"):
message = {}
partition = line.split(' ',3)
message['frame'] = int(partition[1].strip(':'))
fsm_state = "search_ip"
print("Found Frame %d" % (message['frame']))
elif fsm_state == "search_ip":
if line.startswith("Internet Protocol Version"):
fsm_state = "fill_ip"
message['ip_fields'] = 0
print("Found in Frame %d IP" % (message['frame']))
elif fsm_state == "fill_ip":
if line.startswith("Header length"):
partition = line.split(' ',4)
message['ip_header_length'] = int(partition[2])
message['ip_fields'] += 1
print("Found in Frame %d IP header length %d" % (message['frame'], int(partition[2])))
if line.startswith("Total Length"):
partition = line.split(' ',4)
message['ip_total_length'] = int(partition[2])
message['ip_fields'] += 1
print("Found in Frame %d IP Total Length %d" % (message['frame'], int(partition[2])))
if line.startswith("Protocol"):
partition = line.split(' ',4)
if partition[1] != "SCTP":
print("Error did not found in Frame %d SCTP" % (message['frame'])))
fsm_state="search_frame"
continue
else:
message['ip_protocol'] = partition[1]
message['ip_fields'] += 1
print("Found in Frame %d SCTP" % (message['frame'])))
if message['ip_fields'] == 3:
fsm_state = "search_sctp"
print("in Frame %d searching S1AP" % (message['frame'])))
elif fsm_state == "search_sctp":
if line.startswith("Internet Protocol Version"):
fsm_state = "fill_sctp"
message['sctp_fields'] = 0
elif fsm_state == "fill_sctp":
if line.startswith("Source port"):
partition = line.split(' ',4)
message['Source port'] = int(partition[2])
message['sctp_fields'] += 1
elif line.startswith("Destination port"):
partition = line.split(' ',4)
message['Destination port'] = int(partition[2])
message['sctp_fields'] += 1
elif line.startswith("Chunk length"):
partition = line.split(' ',4)
message['Chunk length'] = int(partition[2])
message['sctp_fields'] += 1
elif line.startswith("Stream Identifier"):
partition = line.split(' ',4)
message['Stream Identifier'] = int(partition[2])
message['sctp_fields'] += 1
elif line.startswith("Stream sequence number"):
partition = line.split(' ',4)
message['Stream sequence number'] = int(partition[3])
message['sctp_fields'] += 1
elif line.startswith("Chunk padding"):
partition = line.split(' ',4)
message['Chunk padding'] = int(partition[2])
message['sctp_fields'] += 1
if message['sctp_fields'] == 6:
fsm_state = "search_s1ap"
elif fsm_state == "search_s1ap":
if line.startswith("S1 Application Protocol"):
fsm_state = "fill_s1ap"
message['s1ap_fields'] = 0
print("in Frame %d Filling S1AP" % (message['frame'])))
elif fsm_state == "fill_s1ap":
if line.startswith("S1AP-PDU:"):
partition = line.split(' ')
message['Pdu'] = partition[1]
message['s1ap_fields'] += 1
elif line.startswith("procedureCode:"):
partition = line.split(' ')
message['procedureCode:'] = partition[1]
message['s1ap_fields'] += 1
elif line.startswith("protocolIEs"):
partition = line.split(' ')
message['protocolIEs'] = int(partition[1])
message['items'] = {}
elif line.startswith("Item"):
partition = line.split(' ')
item_index = partition[1].trim(':')
item_string = partition[2]
message['items'][item_string] = ' '
print("Found in Frame %d S1AP Item %d %s" % (message['frame'], item_index, item_string)))
if item_string == id-E-RABToBeSetupListCtxtSUReq:
elif item_string == id-E-RABToBeSetupListCtxtSUReq:
elif line.startswith("nAS-PDU"):
partition = line.split(' ')
nas_bytes = partition[1].trim('.')
message['items'].append
print("Found in Frame %d Stream sequence number" % (message['frame'], int(partition[3])))
if message['s1ap_fields'] == 6:
pcap_dissected_list.append(message)
fsm_state = "search_frame"
for message in pcap_dissected_list:
print("Message:\n" )
print(" %s" % (message))
lines = pcap_hex_file.splitlines()
message = {}
message_index = 0
fsm_state="search_frame"
for line in lines:
print ("INPUT LINE: %s " % line)
line = line.strip()
if line != "":
if fsm_state == "search_frame":
if line.startswith("Frame"):
partition = line.split(' ',3)
fsm_state = "search_s1ap"
elif fsm_state == "search_s1ap":
if line.startswith("S1 Application Protocol"):
fsm_state = "fill_s1ap"
message = pcap_dissected_list[message_index]
message['s1ap_byte_offset'] = 0
message['dumped'] = []
message_index += 1
elif fsm_state == "fill_s1ap":
if not line.startswith("Frame"):
bytes = line.split(' ')
byte_index = int(bytes[0],16)
if byte_index == message['s1ap_byte_offset']:
message['s1ap_byte_offset'] += 16
for byte in bytes:
message['dumped'].append(byte)
message['s1ap_byte_offset'] += 1
else:
fsm_state="search_frame"
print (" %s " % ( pcap_dissected_list ) )
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sched.h>
#include <linux/sched.h>
#include <signal.h>
#include <execinfo.h>
#include <getopt.h>
#include <syscall.h>
#include "tree.h"
#include "queue.h"
#include "intertask_interface.h"
#include "s1ap_eNB_default_values.h"
#include "s1ap_common.h"
#include "s1ap_ies_defs.h"
#include "s1ap_eNB_defs.h"
#include "s1ap_eNB_management_procedures.h"
#include "assertions.h"
#include "platform_types.h"
#include "oaisim_mme_test_s1c.h"
void s1ap_eNB_handle_sctp_data_ind(sctp_data_ind_t *sctp_data_ind)
{
int result;
DevAssert(sctp_data_ind != NULL);
mme_test_s1_notify_sctp_data_ind(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);
}
void s1ap_eNB_itti_send_sctp_data_req(instance_t instance, int32_t assoc_id, uint8_t *buffer,
uint32_t buffer_length, uint16_t stream)
{
MessageDef *message_p;
sctp_data_req_t *sctp_data_req;
message_p = itti_alloc_new_message(TASK_S1AP, SCTP_DATA_REQ);
sctp_data_req = &message_p->ittiMsg.sctp_data_req;
sctp_data_req->assoc_id = assoc_id;
sctp_data_req->buffer = buffer;
sctp_data_req->buffer_length = buffer_length;
sctp_data_req->stream = stream;
itti_send_msg_to_task(TASK_SCTP, instance, message_p);
}
void s1ap_handle_s1_setup_message(s1ap_eNB_mme_data_t *mme_desc_p, int sctp_shutdown)
{
if (sctp_shutdown) {
/* A previously connected MME has been shutdown */
/* TODO check if it was used by some eNB and send a message to inform these eNB if there is no more associated MME */
if (mme_desc_p->state == S1AP_ENB_STATE_CONNECTED) {
mme_desc_p->state = S1AP_ENB_STATE_DISCONNECTED;
if (mme_desc_p->s1ap_eNB_instance->s1ap_mme_associated_nb > 0) {
/* Decrease associated MME number */
mme_desc_p->s1ap_eNB_instance->s1ap_mme_associated_nb --;
}
/* If there are no more associated MME, inform eNB app */
if (mme_desc_p->s1ap_eNB_instance->s1ap_mme_associated_nb == 0) {
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_S1AP, S1AP_DEREGISTERED_ENB_IND);
S1AP_DEREGISTERED_ENB_IND(message_p).nb_mme = 0;
itti_send_msg_to_task(TASK_ENB_APP, mme_desc_p->s1ap_eNB_instance->instance, message_p);
}
}
} else {
/* Check that at least one setup message is pending */
DevCheck(mme_desc_p->s1ap_eNB_instance->s1ap_mme_pending_nb > 0, mme_desc_p->s1ap_eNB_instance->instance,
mme_desc_p->s1ap_eNB_instance->s1ap_mme_pending_nb, 0);
if (mme_desc_p->s1ap_eNB_instance->s1ap_mme_pending_nb > 0) {
/* Decrease pending messages number */
mme_desc_p->s1ap_eNB_instance->s1ap_mme_pending_nb --;
}
/* If there are no more pending messages, inform eNB app */
if (mme_desc_p->s1ap_eNB_instance->s1ap_mme_pending_nb == 0) {
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_S1AP, S1AP_REGISTER_ENB_CNF);
S1AP_REGISTER_ENB_CNF(message_p).nb_mme = mme_desc_p->s1ap_eNB_instance->s1ap_mme_associated_nb;
itti_send_msg_to_task(TASK_ENB_APP, mme_desc_p->s1ap_eNB_instance->instance, message_p);
}
}
}
void s1ap_eNB_handle_sctp_association_resp(instance_t instance, sctp_new_association_resp_t *sctp_new_association_resp)
{
s1ap_eNB_instance_t *instance_p;
s1ap_eNB_mme_data_t *s1ap_mme_data_p;
DevAssert(sctp_new_association_resp != NULL);
instance_p = s1ap_eNB_get_instance(instance);
DevAssert(instance_p != NULL);
s1ap_mme_data_p = s1ap_eNB_get_MME(instance_p, -1,
sctp_new_association_resp->ulp_cnx_id);
DevAssert(s1ap_mme_data_p != NULL);
if (sctp_new_association_resp->sctp_state != SCTP_STATE_ESTABLISHED) {
S1AP_WARN("Received unsuccessful result for SCTP association (%u), instance %d, cnx_id %u\n",
sctp_new_association_resp->sctp_state,
instance,
sctp_new_association_resp->ulp_cnx_id);
s1ap_handle_s1_setup_message(s1ap_mme_data_p, sctp_new_association_resp->sctp_state == SCTP_STATE_SHUTDOWN);
return;
}
/* Update parameters */
s1ap_mme_data_p->assoc_id = sctp_new_association_resp->assoc_id;
s1ap_mme_data_p->in_streams = sctp_new_association_resp->in_streams;
s1ap_mme_data_p->out_streams = sctp_new_association_resp->out_streams;
/* Prepare new S1 Setup Request */
mme_test_s1_start_test(instance_p, s1ap_mme_data_p);
}
void s1ap_eNB_register_mme(s1ap_eNB_instance_t *instance_p,
net_ip_address_t *mme_ip_address,
net_ip_address_t *local_ip_addr)
{
MessageDef *message_p = NULL;
sctp_new_association_req_t *sctp_new_association_req_p = NULL;
s1ap_eNB_mme_data_t *s1ap_mme_data_p = NULL;
DevAssert(instance_p != NULL);
DevAssert(mme_ip_address != NULL);
message_p = itti_alloc_new_message(TASK_S1AP, SCTP_NEW_ASSOCIATION_REQ);
sctp_new_association_req_p = &message_p->ittiMsg.sctp_new_association_req;
sctp_new_association_req_p->port = S1AP_PORT_NUMBER;
sctp_new_association_req_p->ppid = S1AP_SCTP_PPID;
memcpy(&sctp_new_association_req_p->remote_address,
mme_ip_address,
sizeof(*mme_ip_address));
memcpy(&sctp_new_association_req_p->local_address,
local_ip_addr,
sizeof(*local_ip_addr));
/* Create new MME descriptor */
s1ap_mme_data_p = calloc(1, sizeof(*s1ap_mme_data_p));
DevAssert(s1ap_mme_data_p != NULL);
s1ap_mme_data_p->cnx_id = s1ap_eNB_fetch_add_global_cnx_id();
sctp_new_association_req_p->ulp_cnx_id = s1ap_mme_data_p->cnx_id;
s1ap_mme_data_p->assoc_id = -1;
s1ap_mme_data_p->s1ap_eNB_instance = instance_p;
STAILQ_INIT(&s1ap_mme_data_p->served_gummei);
/* Insert the new descriptor in list of known MME
* but not yet associated.
*/
RB_INSERT(s1ap_mme_map, &instance_p->s1ap_mme_head, s1ap_mme_data_p);
s1ap_mme_data_p->state = S1AP_ENB_STATE_WAITING;
instance_p->s1ap_mme_nb ++;
instance_p->s1ap_mme_pending_nb ++;
itti_send_msg_to_task(TASK_SCTP, instance_p->instance, message_p);
}
void s1ap_eNB_handle_register_eNB(instance_t instance, s1ap_register_enb_req_t *s1ap_register_eNB)
{
s1ap_eNB_instance_t *new_instance;
uint8_t index;
DevAssert(s1ap_register_eNB != NULL);
/* Look if the provided instance already exists */
new_instance = s1ap_eNB_get_instance(instance);
if (new_instance != NULL) {
/* Checks if it is a retry on the same eNB */
DevCheck(new_instance->eNB_id == s1ap_register_eNB->eNB_id, new_instance->eNB_id, s1ap_register_eNB->eNB_id, 0);
DevCheck(new_instance->cell_type == s1ap_register_eNB->cell_type, new_instance->cell_type, s1ap_register_eNB->cell_type, 0);
DevCheck(new_instance->tac == s1ap_register_eNB->tac, new_instance->tac, s1ap_register_eNB->tac, 0);
DevCheck(new_instance->mcc == s1ap_register_eNB->mcc, new_instance->mcc, s1ap_register_eNB->mcc, 0);
DevCheck(new_instance->mnc == s1ap_register_eNB->mnc, new_instance->mnc, s1ap_register_eNB->mnc, 0);
DevCheck(new_instance->mnc_digit_length == s1ap_register_eNB->mnc_digit_length, new_instance->mnc_digit_length, s1ap_register_eNB->mnc_digit_length, 0);
DevCheck(new_instance->default_drx == s1ap_register_eNB->default_drx, new_instance->default_drx, s1ap_register_eNB->default_drx, 0);
} else {
new_instance = calloc(1, sizeof(s1ap_eNB_instance_t));
DevAssert(new_instance != NULL);
RB_INIT(&new_instance->s1ap_ue_head);
RB_INIT(&new_instance->s1ap_mme_head);
/* Copy usefull parameters */
new_instance->instance = instance;
new_instance->eNB_name = s1ap_register_eNB->eNB_name;
new_instance->eNB_id = s1ap_register_eNB->eNB_id;
new_instance->cell_type = s1ap_register_eNB->cell_type;
new_instance->tac = s1ap_register_eNB->tac;
new_instance->mcc = s1ap_register_eNB->mcc;
new_instance->mnc = s1ap_register_eNB->mnc;
new_instance->mnc_digit_length = s1ap_register_eNB->mnc_digit_length;
new_instance->default_drx = s1ap_register_eNB->default_drx;
/* Add the new instance to the list of eNB (meaningfull in virtual mode) */
s1ap_eNB_insert_new_instance(new_instance);
S1AP_DEBUG("Registered new eNB[%d] and %s eNB id %u\n",
instance,
s1ap_register_eNB->cell_type == CELL_MACRO_ENB ? "macro" : "home",
s1ap_register_eNB->eNB_id);
}
DevCheck(s1ap_register_eNB->nb_mme <= S1AP_MAX_NB_MME_IP_ADDRESS,
S1AP_MAX_NB_MME_IP_ADDRESS, s1ap_register_eNB->nb_mme, 0);
/* Trying to connect to provided list of MME ip address */
for (index = 0; index < s1ap_register_eNB->nb_mme; index++) {
s1ap_eNB_register_mme(new_instance, &s1ap_register_eNB->mme_ip_address[index],
&s1ap_register_eNB->enb_ip_address);
}
}
void *s1ap_eNB_task(void *arg)
{
MessageDef *received_msg = NULL;
int result;
S1AP_DEBUG("Starting S1AP layer\n");
s1ap_eNB_prepare_internal_data();
itti_mark_task_ready(TASK_S1AP);
while (1) {
itti_receive_msg(TASK_S1AP, &received_msg);
switch (ITTI_MSG_ID(received_msg)) {
case TERMINATE_MESSAGE:
itti_exit_task();
break;
case S1AP_REGISTER_ENB_REQ: {
/* Register a new eNB.
* in Virtual mode eNBs will be distinguished using the mod_id/
* Each eNB has to send an S1AP_REGISTER_ENB message with its
* own parameters.
*/
s1ap_eNB_handle_register_eNB(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_REGISTER_ENB_REQ(received_msg));
}
break;
case SCTP_NEW_ASSOCIATION_RESP: {
s1ap_eNB_handle_sctp_association_resp(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&received_msg->ittiMsg.sctp_new_association_resp);
}
break;
case SCTP_DATA_IND: {
s1ap_eNB_handle_sctp_data_ind(&received_msg->ittiMsg.sctp_data_ind);
}
break;
default:
S1AP_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;
}
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sched.h>
#include <linux/sched.h>
#include <signal.h>
#include <execinfo.h>
#include <getopt.h>
#include <syscall.h>
void s1ap_eNB_handle_sctp_data_ind(sctp_data_ind_t *sctp_data_ind);
void s1ap_eNB_itti_send_sctp_data_req(instance_t instance, int32_t assoc_id, uint8_t *buffer,
uint32_t buffer_length, uint16_t stream);
void s1ap_handle_s1_setup_message(s1ap_eNB_mme_data_t *mme_desc_p, int sctp_shutdown);
void s1ap_eNB_handle_sctp_association_resp(instance_t instance, sctp_new_association_resp_t *sctp_new_association_resp);