| 1 | /*
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| 2 | * Copyright (c) 2009 Lukas Mejdrech
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup ping
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| 30 | * @{
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| 31 | */
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| 32 |
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| 33 | /** @file
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| 34 | * Ping application.
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| 35 | */
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| 36 |
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| 37 | #include <stdio.h>
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| 38 | #include <string.h>
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| 39 | #include <task.h>
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| 40 | #include <time.h>
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| 41 | #include <ipc/services.h>
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| 42 |
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| 43 | #include "../../include/icmp_api.h"
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| 44 | #include "../../include/in.h"
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| 45 | #include "../../include/in6.h"
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| 46 | #include "../../include/inet.h"
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| 47 | #include "../../include/ip_codes.h"
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| 48 | #include "../../include/socket_errno.h"
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| 49 |
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| 50 | #include "../../err.h"
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| 51 |
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| 52 | #include "../parse.h"
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| 53 | #include "../print_error.h"
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| 54 |
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| 55 | /** Echo module name.
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| 56 | */
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| 57 | #define NAME "Ping"
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| 58 |
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| 59 | /** Module entry point.
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| 60 | * Reads command line parameters and pings.
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| 61 | * @param[in] argc The number of command line parameters.
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| 62 | * @param[in] argv The command line parameters.
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| 63 | * @returns EOK on success.
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| 64 | */
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| 65 | int main( int argc, char * argv[] );
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| 66 |
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| 67 | /** Prints the application help.
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| 68 | */
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| 69 | void print_help( void );
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| 70 |
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| 71 | /** Translates the character string to the address family number.
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| 72 | * @param[in] name The address family name.
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| 73 | * @returns The corresponding address family number.
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| 74 | * @returns EAFNOSUPPORTED if the address family is not supported.
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| 75 | */
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| 76 | int parse_address_family( const char * name );
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| 77 |
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| 78 | void print_help( void ){
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| 79 | printf(
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| 80 | "Network Ping aplication\n" \
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| 81 | "Usage: ping [options] numeric_address\n" \
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| 82 | "Where options are:\n" \
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| 83 | "\n" \
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| 84 | "-c request_count | --count=request_count\n" \
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| 85 | "\tThe number of packets the application sends. The default is three (3).\n" \
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| 86 | "\n" \
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| 87 | "--dont_fragment\n" \
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| 88 | "\tDisable packet fragmentation.\n"
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| 89 | "\n" \
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| 90 | "-f address_family | --family=address_family\n" \
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| 91 | "\tThe given address family. Only the AF_INET and AF_INET6 are supported.\n"
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| 92 | "\n" \
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| 93 | "-h | --help\n" \
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| 94 | "\tShow this application help.\n"
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| 95 | "\n" \
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| 96 | "-s packet_size | --size=packet_size\n" \
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| 97 | "\tThe packet data size the application sends. The default is 38 bytes.\n" \
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| 98 | "\n" \
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| 99 | "-t timeout | --timeout=timeout\n" \
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| 100 | "\tThe number of miliseconds the application waits for a reply. The default is three thousands (3 000).\n" \
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| 101 | "\n" \
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| 102 | "--tos=tos\n" \
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| 103 | "\tThe type of service to be used.\n" \
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| 104 | "\n" \
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| 105 | "--ttl=ttl\n" \
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| 106 | "\tThe time to live to be used.\n" \
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| 107 | "\n" \
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| 108 | "-v | --verbose\n" \
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| 109 | "\tShow all output messages.\n"
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| 110 | );
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| 111 | }
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| 112 |
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| 113 | int parse_address_family( const char * name ){
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| 114 | if( str_lcmp( name, "AF_INET", 7 ) == 0 ){
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| 115 | return AF_INET;
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| 116 | }else if( str_lcmp( name, "AF_INET6", 8 ) == 0 ){
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| 117 | return AF_INET6;
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| 118 | }
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| 119 | return EAFNOSUPPORT;
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| 120 | }
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| 121 |
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| 122 | int main( int argc, char * argv[] ){
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| 123 | ERROR_DECLARE;
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| 124 |
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| 125 | size_t size = 38;
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| 126 | int verbose = 0;
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| 127 | int dont_fragment = 0;
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| 128 | ip_ttl_t ttl = 0;
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| 129 | ip_tos_t tos = 0;
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| 130 | int count = 3;
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| 131 | suseconds_t timeout = 3000;
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| 132 | int family = AF_INET;
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| 133 |
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| 134 | socklen_t max_length = sizeof( struct sockaddr_in6 );
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| 135 | uint8_t address_data[ max_length ];
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| 136 | struct sockaddr * address = ( struct sockaddr * ) address_data;
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| 137 | struct sockaddr_in * address_in = ( struct sockaddr_in * ) address;
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| 138 | struct sockaddr_in6 * address_in6 = ( struct sockaddr_in6 * ) address;
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| 139 | socklen_t addrlen;
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| 140 | char address_string[ INET6_ADDRSTRLEN ];
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| 141 | uint8_t * address_start;
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| 142 | int icmp_phone;
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| 143 | struct timeval time_before;
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| 144 | struct timeval time_after;
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| 145 | int result;
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| 146 | int value;
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| 147 | int index;
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| 148 |
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| 149 | printf( "Task %d - ", task_get_id());
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| 150 | printf( "%s\n", NAME );
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| 151 |
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| 152 | if( argc <= 1 ){
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| 153 | print_help();
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| 154 | return EINVAL;
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| 155 | }
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| 156 |
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| 157 | for( index = 1; ( index < argc - 1 ) || (( index == argc ) && ( argv[ index ][ 0 ] == '-' )); ++ index ){
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| 158 | if( argv[ index ][ 0 ] == '-' ){
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| 159 | switch( argv[ index ][ 1 ] ){
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| 160 | case 'c': ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & count, "count", 0 ));
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| 161 | break;
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| 162 | case 'f': ERROR_PROPAGATE( parse_parameter_name_int( argc, argv, & index, & family, "address family", 0, parse_address_family ));
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| 163 | break;
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| 164 | case 'h': print_help();
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| 165 | return EOK;
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| 166 | break;
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| 167 | case 's': ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "packet size", 0 ));
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| 168 | size = (value >= 0 ) ? ( size_t ) value : 0;
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| 169 | break;
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| 170 | case 't': ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "timeout", 0 ));
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| 171 | timeout = (value >= 0 ) ? ( suseconds_t ) value : 0;
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| 172 | break;
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| 173 | case 'v': verbose = 1;
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| 174 | break;
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| 175 | case '-': if( str_lcmp( argv[ index ] + 2, "count=", 6 ) == 0 ){
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| 176 | ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & count, "received count", 8 ));
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| 177 | }else if( str_lcmp( argv[ index ] + 2, "dont_fragment", 13 ) == 0 ){
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| 178 | dont_fragment = 1;
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| 179 | }else if( str_lcmp( argv[ index ] + 2, "family=", 7 ) == 0 ){
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| 180 | ERROR_PROPAGATE( parse_parameter_name_int( argc, argv, & index, & family, "address family", 9, parse_address_family ));
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| 181 | }else if( str_lcmp( argv[ index ] + 2, "help", 5 ) == 0 ){
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| 182 | print_help();
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| 183 | return EOK;
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| 184 | }else if( str_lcmp( argv[ index ] + 2, "size=", 5 ) == 0 ){
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| 185 | ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "packet size", 7 ));
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| 186 | size = (value >= 0 ) ? ( size_t ) value : 0;
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| 187 | }else if( str_lcmp( argv[ index ] + 2, "timeout=", 8 ) == 0 ){
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| 188 | ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "timeout", 7 ));
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| 189 | timeout = (value >= 0 ) ? ( suseconds_t ) value : 0;
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| 190 | }else if( str_lcmp( argv[ index ] + 2, "tos=", 4 ) == 0 ){
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| 191 | ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "type of service", 7 ));
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| 192 | tos = (value >= 0 ) ? ( ip_tos_t ) value : 0;
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| 193 | }else if( str_lcmp( argv[ index ] + 2, "ttl=", 4 ) == 0 ){
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| 194 | ERROR_PROPAGATE( parse_parameter_int( argc, argv, & index, & value, "time to live", 7 ));
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| 195 | ttl = (value >= 0 ) ? ( ip_ttl_t ) value : 0;
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| 196 | }else if( str_lcmp( argv[ index ] + 2, "verbose", 8 ) == 0 ){
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| 197 | verbose = 1;
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| 198 | }else{
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| 199 | print_unrecognized( index, argv[ index ] + 2 );
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| 200 | print_help();
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| 201 | return EINVAL;
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| 202 | }
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| 203 | break;
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| 204 | default:
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| 205 | print_unrecognized( index, argv[ index ] + 1 );
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| 206 | print_help();
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| 207 | return EINVAL;
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| 208 | }
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| 209 | }else{
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| 210 | print_unrecognized( index, argv[ index ] );
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| 211 | print_help();
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| 212 | return EINVAL;
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| 213 | }
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| 214 | }
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| 215 |
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| 216 | bzero( address_data, max_length );
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| 217 | switch( family ){
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| 218 | case AF_INET:
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| 219 | address_in->sin_family = AF_INET;
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| 220 | address_start = ( uint8_t * ) & address_in->sin_addr.s_addr;
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| 221 | addrlen = sizeof( struct sockaddr_in );
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| 222 | break;
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| 223 | case AF_INET6:
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| 224 | address_in6->sin6_family = AF_INET6;
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| 225 | address_start = ( uint8_t * ) & address_in6->sin6_addr.s6_addr;
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| 226 | addrlen = sizeof( struct sockaddr_in6 );
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| 227 | break;
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| 228 | default:
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| 229 | fprintf( stderr, "Address family is not supported\n" );
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| 230 | return EAFNOSUPPORT;
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| 231 | }
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| 232 |
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| 233 | if( ERROR_OCCURRED( inet_pton( family, argv[ argc - 1 ], address_start ))){
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| 234 | fprintf( stderr, "Address parse error %d\n", ERROR_CODE );
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| 235 | return ERROR_CODE;
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| 236 | }
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| 237 |
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| 238 | icmp_phone = icmp_connect_module( SERVICE_ICMP );
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| 239 | if( icmp_phone < 0 ){
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| 240 | fprintf( stderr, "ICMP connect error %d\n", icmp_phone );
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| 241 | }
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| 242 |
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| 243 | printf( "PING %d bytes of data\n", size );
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| 244 | if( ERROR_OCCURRED( inet_ntop( address->sa_family, address_start, address_string, sizeof( address_string )))){
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| 245 | fprintf( stderr, "Address error %d\n", ERROR_CODE );
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| 246 | }else{
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| 247 | printf( "Address %s:\n", address_string );
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| 248 | }
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| 249 |
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| 250 | while( count > 0 ){
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| 251 | if( ERROR_OCCURRED( gettimeofday( & time_before, NULL ))){
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| 252 | fprintf( stderr, "Get time of day error %d\n", ERROR_CODE );
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| 253 | return ERROR_CODE;
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| 254 | }
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| 255 | result = icmp_echo_msg( icmp_phone, size, timeout, ttl, tos, dont_fragment, address, addrlen );
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| 256 | if( ERROR_OCCURRED( gettimeofday( & time_after, NULL ))){
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| 257 | fprintf( stderr, "Get time of day error %d\n", ERROR_CODE );
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| 258 | return ERROR_CODE;
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| 259 | }
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| 260 | switch( result ){
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| 261 | case ICMP_ECHO:
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| 262 | printf( "Ping round trip time %d miliseconds\n", tv_sub( & time_after, & time_before ) / 1000 );
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| 263 | break;
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| 264 | case ETIMEOUT:
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| 265 | printf( "Timeouted.\n" );
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| 266 | break;
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| 267 | default:
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| 268 | print_error( stdout, result, NULL, "\n" );
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| 269 | }
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| 270 | -- count;
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| 271 | }
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| 272 |
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| 273 | if( verbose ) printf( "Exiting\n" );
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| 274 |
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| 275 | return EOK;
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| 276 | }
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| 277 |
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| 278 | /** @}
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| 279 | */
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