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4716 mejdrech 1
/*
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 * Copyright (c) 2009 Lukas Mejdrech
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup ping
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 *  @{
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 */
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/** @file
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 *  Ping application.
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 */
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#include <stdio.h>
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#include <string.h>
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#include <task.h>
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#include <time.h>
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#include <ipc/services.h>
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#include "../../include/icmp_api.h"
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#include "../../include/in.h"
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#include "../../include/inet.h"
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#include "../../include/ip_codes.h"
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#include "../../include/socket_codes.h"
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#include "../../err.h"
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#include "../parse.h"
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/** Echo module name.
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 */
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#define NAME    "Ping"
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/** Module entry point.
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 *  Reads command line parameters and pings.
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 *  @param argc The number of command line parameters. Input parameter.
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 *  @param argv The command line parameters. Input parameter.
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 *  @returns EOK on success.
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 */
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int     main( int argc, char * argv[] );
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/** Prints the application help.
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 */
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void    print_help( void );
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/** Translates the character string to the address family number.
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 *  @param name The address family name. Input parameter.
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 *  @returns The corresponding address family number.
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 */
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int parse_address_family( const char * name );
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void print_help( void ){
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    printf(
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        "Network Ping aplication\n" \
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        "Usage: ping [options] numeric_address\n" \
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        "Where options are:\n" \
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        "\n" \
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        "-c request_count | --count=request_count\n" \
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        "\tThe number of packets the application sends. The default is three (3).\n" \
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        "\n" \
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        "--dont_fragment\n" \
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        "\tDisable packet fragmentation.\n"
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        "\n" \
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        "-f address_family | --family=address_family\n" \
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        "\tThe given address family. Only the AF_INET is supported.\n"
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        "\n" \
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        "-h | --help\n" \
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        "\tShow this application help.\n"
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        "\n" \
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        "-s packet_size | --size=packet_size\n" \
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        "\tThe packet data size the application sends. The default is 38 bytes.\n" \
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        "\n" \
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        "-t timeout | --timeout=timeout\n" \
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        "\tThe number of miliseconds the application waits for a reply. The default is three thousands (3 000).\n" \
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        "\n" \
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        "--tos=tos\n" \
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        "\tThe type of service to be used.\n" \
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        "\n" \
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        "--ttl=ttl\n" \
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        "\tThe time to live to be used.\n" \
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        "\n" \
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        "-v | --verbose\n" \
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        "\tShow all output messages.\n"
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    );
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}
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int parse_address_family( const char * name ){
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    if( str_lcmp( name, "AF_INET", 7 ) == 0 ){
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        return AF_INET;
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    }
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    return ENOENT;
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}
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int main( int argc, char * argv[] ){
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    ERROR_DECLARE;
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    size_t              size            = 38;
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    int                 verbose         = 0;
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    int                 dont_fragment   = 0;
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    ip_ttl_t            ttl             = 0;
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    ip_tos_t            tos             = 0;
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    int                 count           = 3;
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    suseconds_t         timeout         = 3000;
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    struct sockaddr_in  address         = { .sin_family = AF_INET, .sin_port = 7 };
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    int                 icmp_phone;
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    struct timeval      time_before;
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    struct timeval      time_after;
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    int                 result;
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    int                 value;
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    int                 index;
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    printf( "Task %d - ", task_get_id());
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    printf( "%s\n", NAME );
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    for( index = 1; index < argc - 1; ++ index ){
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        if( argv[ index ][ 0 ] == '-' ){
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            switch( argv[ index ][ 1 ] ){
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                case 'c':   ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & count, "count", 0 ));
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                            break;
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                case 'f':   ERROR_PROPAGATE( parse_parameter_name_int( argc, argv, & index, & value, "address family", 0, parse_address_family ));
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                            address.sin_family = ( uint16_t ) value;
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                            break;
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                case 'h':   print_help();
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                            return EOK;
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                            break;
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                case 's':   ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "packet size", 0 ));
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                            size = (value >= 0 ) ? ( size_t ) value : 0;
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                            break;
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                case 't':   ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "timeout", 0 ));
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                            timeout = (value >= 0 ) ? ( suseconds_t ) value : 0;
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                            break;
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                case 'v':   verbose = 1;
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                            break;
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                case '-':   if( str_lcmp( argv[ index ] + 2, "count=", 6 ) == 0 ){
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                                ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & count, "received count", 8 ))
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                            }else if( str_lcmp( argv[ index ] + 2, "dont_fragment", 13 ) == 0 ){
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                                dont_fragment = 1;
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                            }else if( str_lcmp( argv[ index ] + 2, "family=", 7 ) == 0 ){
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                                ERROR_PROPAGATE( parse_parameter_name_int( argc, argv, & index, & value, "address family", 9, parse_address_family ));
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                                address.sin_family = ( uint16_t ) value;
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                            }else if( str_lcmp( argv[ index ] + 2, "help", 5 ) == 0 ){
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                                print_help();
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                                return EOK;
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                            }else if( str_lcmp( argv[ index ] + 2, "size=", 5 ) == 0 ){
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                                ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "packet size", 7 ));
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                                size = (value >= 0 ) ? ( size_t ) value : 0;
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                            }else if( str_lcmp( argv[ index ] + 2, "timeout=", 8 ) == 0 ){
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                                ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "timeout", 7 ));
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                                timeout = (value >= 0 ) ? ( suseconds_t ) value : 0;
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                            }else if( str_lcmp( argv[ index ] + 2, "tos=", 4 ) == 0 ){
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                                ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "type of service", 7 ));
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                                tos = (value >= 0 ) ? ( ip_tos_t ) value : 0;
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                            }else if( str_lcmp( argv[ index ] + 2, "ttl=", 4 ) == 0 ){
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                                ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "time to live", 7 ));
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                                ttl = (value >= 0 ) ? ( ip_ttl_t ) value : 0;
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                            }else if( str_lcmp( argv[ index ] + 2, "verbose", 8 ) == 0 ){
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                                verbose = 1;
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                            }else{
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                                print_unrecognized( index, argv[ index ] + 2 );
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                                print_help();
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                                return EINVAL;
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                            }
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                            break;
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                default:
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                    print_unrecognized( index, argv[ index ] + 1 );
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                    print_help();
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                    return EINVAL;
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            }
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        }else{
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            print_unrecognized( index, argv[ index ] );
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            print_help();
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            return EINVAL;
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        }
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    }
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    if( ERROR_OCCURRED( inet_pton( address.sin_family, argv[ argc - 1 ], ( uint8_t * ) & address.sin_addr ))){
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        fprintf( stderr, "Address parse error %d\n", ERROR_CODE );
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        return ERROR_CODE;
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    }
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    icmp_phone = icmp_connect_module( SERVICE_ICMP );
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    if( icmp_phone < 0 ){
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        fprintf( stderr, "ICMP connect error %d\n", icmp_phone );
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    }
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    printf( "PING %d bytes of data\n", size );
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    while( count > 0 ){
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        if( ERROR_OCCURRED( gettimeofday( & time_before, NULL ))){
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            fprintf( stderr, "Get time of day error %d\n", ERROR_CODE );
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            return ERROR_CODE;
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        }
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        result = icmp_echo_msg( icmp_phone, size, timeout, ttl, tos, dont_fragment, ( struct sockaddr * ) & address, sizeof( address ));
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        if( ERROR_OCCURRED( gettimeofday( & time_after, NULL ))){
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            fprintf( stderr, "Get time of day error %d\n", ERROR_CODE );
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            return ERROR_CODE;
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        }
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        switch( result ){
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            case ICMP_ECHO:
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                printf( "Ping round trip time %d microseconds\n", tv_sub( & time_after, & time_before ));
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                break;
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            case ELIMIT:
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                printf( "Timeouted.\n" );
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                break;
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            default:
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                printf( "Error %d.\n", result );
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        }
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        -- count;
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    }
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4717 mejdrech 235
    if( verbose ) printf( "Exiting\n" );
4716 mejdrech 236
 
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    return EOK;
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}
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/** @}
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 */