218 lines
6.9 KiB
C
218 lines
6.9 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file otg_tx.h
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* \brief Data structure and functions for OTG
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* \author N. Nikaein and A. Hafsaoui
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* \date 2011
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* \version 1.0
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* \company Eurecom
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* \email: navid.nikaein@eurecom.fr
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* \note
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* \warning
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*/
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#ifndef __OTG_TX_H__
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# define __OTG_TX_H__
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <unistd.h>
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#include "otg.h"
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/*! \fn int time_dist(const int src, const int dst, const int state)
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* \brief compute Inter Departure Time, in ms
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* \param[in] Source, destination, state
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* \param[out] Inter Departure Time
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* \note
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* @ingroup _otg
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*/
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int time_dist(
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const int src_instance,
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const int dst_instance,
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const int application,
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const int state);
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/*! \fn int size_dist(const int src, const int dst, const int state)
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* \brief compute the payload size, in bytes
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* \param[in] Source, node_dst, state
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* \param[out] size of the payload, in bytes
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* \note
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* @ingroup _otg
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*/
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int size_dist(
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const int src_instance,
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const int dst_instance,
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const int application,
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const int state);
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/*! \fn char *random_string(const int size, const ALPHABET_GEN mode, const ALPHABET_TYPE data_type);
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* \brief return a random string[size]
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* \param[in] size of the string to generate,
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* \param[in] ALPHABET_GEN : static or random string
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* \param[in] ALPHABET_TYPE : numeric or letters + numeric
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* \param[out] string of a random char
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* \note
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* @ingroup _otg
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*/
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char * random_string(const int size, const ALPHABET_GEN mode, const ALPHABET_TYPE data_type);
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/*! \fn int packet_gen(const int src, const int dst, const int state, const int ctime)
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* \brief return int= 1 if the packet is generated: OTG header + header + payload, else 0
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* \param[in] src source identity
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* \param[in] dst destination id
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* \param[in] application id that might generate the packet
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* \param[out] final packet size
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* \param[out] packet_t: the generated packet: otg_header + header + payload
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* \note
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* @ingroup _otg
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*/
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unsigned char *packet_gen(
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const int src_instance,
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const int dst_instance,
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const int app,
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const int ctime,
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unsigned int * const pkt_size);
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/*! \fn unsigned char * packet_gen_multicast(const int src, const int dst, const int ctime, unsigned int * const pkt_size)
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* \brief return int= 1 if the packet is generated: OTG header + header + payload, else 0
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* \param[in] src source identity
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* \param[in] dst destination id
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* \param[in] ctime
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* \param[out] final packet size
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* \note
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* @ingroup _otg
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*/
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unsigned char *packet_gen_multicast(
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const int src_instance,
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const int dst_instance,
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const int ctime,
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unsigned int * const pkt_size);
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/*! \fn char *header_gen(const int hdr_size);
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* \brief generate IP (v4/v6) + transport header(TCP/UDP)
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* \param[in] int : size
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* \param[out] the payload corresponding to ip version and transport protocol
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* \note
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* @ingroup _otg
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*/
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unsigned char *header_gen(const int hdr_size);
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/*! \fn char *payload_pkts(const int payload_size);
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* \brief generate the payload
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* \param[in] int : payload size
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* \param[out] char * payload
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* \note
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* @ingroup _otg
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*/
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unsigned char *payload_pkts(const int payload_size);
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/*! \fn char * serialize_buffer(char* const header, char* const payload, const unsigned int buffer_size, const int flag, const int
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flow_id, const int ctime, const int seq_num, const int hdr_type, const int state)
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* \brief serilize the packet and add otg control information
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* \param[in] char* header pointer to the header
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* \param[in] char* payload pointer to the payload
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* \param[in] buffer_size size of the serilized tx buffer
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* \param[in] flag for regular and background traffic
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* \param[in] flow_id
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* \param[in] ctime time of the transmission
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* \param[in] seq_num sequence number of the packet used to calculate the loss rate
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* \param[in] hdr_type indicatting the ip protocol version and transport protocol
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* \param[in] state indicate in which state (PU, ED, PE) the packet is generated when generating M2M traffic
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flow id, simulation time, , sequence number, header type (to know the transport/ip version in the RX)
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* \param[out] tx_buffer the serilized packet
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* @ingroup _otg
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*/
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unsigned char * serialize_buffer(
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char* const header,
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char* const payload,
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const unsigned int buffer_size,
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const unsigned int traffic_type,
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const int flag,
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const int flow_id,
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const int ctime,
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const int seq_num,
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const int hdr_type,
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const int state,
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const unsigned int aggregation_level,
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const int src_instance,
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const int dst_instance);
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/*! \fn int adjust_size(int size);
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* \brief adjuste the generated packet size when size<min or size>max
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* \param[in] size
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* \param[out] modified size in case
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* \note
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* @ingroup _otg
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*/
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int adjust_size(int size);
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void header_size_gen(const int src, const int dst, const int application);
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void init_predef_multicast_traffic(void);
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/*! \fn void init_predef_traffic();
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* \brief initialise OTG with predifined value for pre-configured traffic: cbr, openarena,etc.
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* \param[in]
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* \param[out]
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* \note
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* @ingroup _otg
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*/
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void init_predef_traffic(const unsigned char nb_ue_local, const unsigned char nb_enb_local);
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/*! \fn int background_gen(const int src, const int dst, const int ctime);
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* \brief manage idt and packet size for the backgrounf traffic.
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* \param[in] src
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* \param[in] dst
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* \param[in] ctime
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* \param[out]
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* \note
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* @ingroup _otg
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*/
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int background_gen(const int src, const int dst, const int ctime);
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int header_size_gen_background(const int src, const int dst);
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void state_management(const int src, const int dst,const int application, const int ctime);
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void voip_traffic(const int src, const int dst, const int application, const int ctime);
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int otg_hdr_size(
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const int src_instance,
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const int dst_instance);
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void init_packet_gen(const int src_instance, const int dst_instance, const int ctime);
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int check_data_transmit(const int src,const int dst, const int app, const int ctime);
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unsigned int get_application_state(const int src, const int dst, const int application, const int ctime);
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void check_ctime(const int ctime);
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#endif
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