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3666 | mejdrech | 1 | /* |
2 | * Copyright (c) 2008 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 | |||
29 | /** @addtogroup net |
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30 | * @{ |
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31 | */ |
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32 | |||
33 | /** @file |
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34 | */ |
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35 | |||
36 | #include <async.h> |
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37 | #include <errno.h> |
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38 | #include <stdio.h> |
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39 | #include <ipc/ipc.h> |
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40 | #include <ipc/services.h> |
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41 | //#include <sys/mman.h> |
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42 | |||
43 | #include "../err.h" |
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3685 | mejdrech | 44 | #include "../measured_strings.h" |
3666 | mejdrech | 45 | #include "../messages.h" |
46 | #include "../modules.h" |
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47 | |||
48 | #include "netif.h" |
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49 | |||
50 | #define DEFAULT_MTU 1500 |
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51 | |||
52 | #define NAME "lo - loopback interface" |
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53 | |||
54 | netif_globals_t netif_globals; |
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55 | |||
3685 | mejdrech | 56 | void change_state( netif_device_ref device, netif_state_t state ); |
57 | int change_state_message( netif_device_id_t device_id, netif_state_t state ); |
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3666 | mejdrech | 58 | int netif_create( netif_device_id_t device_id, netif_device_ref * device ); |
59 | int netif_call( ipc_callid_t callid ); |
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60 | int netif_initialize( void ); |
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61 | void netif_print_name( void ); |
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62 | int netif_probe_auto_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ); |
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63 | int netif_probe_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ); |
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64 | int netif_send_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ); |
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65 | int netif_start_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ); |
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66 | int netif_stop_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ); |
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67 | |||
3685 | mejdrech | 68 | void change_state( netif_device_ref device, netif_state_t state ){ |
69 | device->state = state; |
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70 | ll_message( device, NET_LL_DEVICE_STATE_CHANGED, device->state, NULL, NULL, NULL, NULL ); |
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3666 | mejdrech | 71 | } |
72 | |||
3685 | mejdrech | 73 | int change_state_message( netif_device_id_t device_id, netif_state_t state ){ |
3666 | mejdrech | 74 | ERROR_DECLARE; |
75 | |||
76 | netif_device_ref device; |
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77 | |||
78 | ERROR_PROPAGATE( netif_device_find( device_id, & device )); |
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3685 | mejdrech | 79 | change_state( device, state ); |
3666 | mejdrech | 80 | return EOK; |
81 | } |
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82 | |||
83 | int netif_create( netif_device_id_t device_id, netif_device_ref * device ){ |
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84 | ERROR_DECLARE; |
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85 | |||
86 | if( netif_device_map_count( & netif_globals.netif_device_map ) > 0 ){ |
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87 | return EXDEV; |
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88 | }else{ |
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89 | * device = ( netif_device_ref ) malloc( sizeof( netif_device_t )); |
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90 | if( !( * device )) return ENOMEM; |
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91 | ( ** device ).device_id = device_id; |
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3685 | mejdrech | 92 | ( ** device ).ll_registered = -1; |
93 | ( ** device ).specific = NULL; |
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3666 | mejdrech | 94 | netif_device_stats_null( &(( ** device ).stats )); |
3685 | mejdrech | 95 | ( ** device ).state = NETIF_STOPPED; |
3666 | mejdrech | 96 | ( ** device ).flags = NULL; |
97 | ( ** device ).mtu = DEFAULT_MTU; |
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98 | if( ERROR_OCCURED( netif_device_map_add( & netif_globals.netif_device_map, ( ** device ).device_id, * device ))){ |
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99 | free( * device ); |
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100 | * device = NULL; |
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101 | return ERROR_CODE; |
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102 | } |
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103 | } |
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104 | return EOK; |
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105 | } |
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106 | |||
107 | int netif_call( ipc_callid_t callid ){ |
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108 | return EOK; |
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109 | } |
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110 | |||
111 | int netif_initialize( void ){ |
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3685 | mejdrech | 112 | ipcarg_t phonehash; |
3666 | mejdrech | 113 | |
114 | return REGISTER_ME( SERVICE_LO, & phonehash ); |
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115 | } |
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116 | |||
117 | void netif_print_name( void ){ |
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118 | printf( NAME ); |
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119 | } |
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120 | |||
121 | int netif_probe_auto_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ){ |
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3685 | mejdrech | 122 | /* ERROR_DECLARE; |
3666 | mejdrech | 123 | |
124 | netif_device_ref device; |
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125 | |||
126 | ERROR_PROPAGATE( netif_create( arg1, & device )); |
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3685 | mejdrech | 127 | ipc_call_sync_3_3( netif_globals.networking_phone, NET_NETWORKING_DEVICE, device->device_id, NULL, NULL, NULL, NULL, NULL ); |
128 | */ return ENOTSUP; |
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3666 | mejdrech | 129 | } |
130 | |||
131 | int netif_probe_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ){ |
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132 | ERROR_DECLARE; |
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133 | |||
134 | netif_device_ref device; |
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3685 | mejdrech | 135 | aid_t message; |
136 | ipc_call_t answer; |
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137 | measured_string_t configuration[ 1 ] = {{ "MTU", 3 }}; |
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138 | int count = 1; |
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139 | measured_string_ref settings; |
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140 | char * data; |
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3666 | mejdrech | 141 | |
3685 | mejdrech | 142 | // create a new device |
3666 | mejdrech | 143 | ERROR_PROPAGATE( netif_create( arg1, & device )); |
3685 | mejdrech | 144 | // get configuration |
145 | message = async_send_2( netif_globals.networking_phone, NET_NETWORKING_GET_DEVICE_CONFIGURATION, device->device_id, count, & answer ); |
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146 | // send names and get settings |
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147 | if( ERROR_OCCURED( measured_strings_send( netif_globals.networking_phone, configuration, count )) |
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148 | || ERROR_OCCURED( measured_strings_return( netif_globals.networking_phone, & settings, & data, count ))){ |
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149 | async_wait_for( message, NULL ); |
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150 | return ERROR_CODE; |
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151 | } |
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152 | // MTU is the first one |
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153 | if( settings && ( settings[ 0 ].value )){ |
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154 | device->mtu = strtoul( settings[ 0 ].value, NULL, 0 ); |
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155 | }else{ |
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156 | device->mtu = DEFAULT_MTU; |
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157 | } |
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158 | // print the settings |
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159 | printf("\n -MTU=%d", device->mtu ); |
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160 | free( settings ); |
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161 | free( data ); |
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162 | // end request |
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163 | async_wait_for( message, NULL ); |
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3666 | mejdrech | 164 | return EOK; |
165 | } |
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166 | |||
167 | int netif_send_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ){ |
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168 | ERROR_DECLARE; |
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169 | |||
170 | netif_device_ref device; |
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171 | |||
172 | ERROR_PROPAGATE( netif_device_find( arg1, & device )); |
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3685 | mejdrech | 173 | if( device->state == NETIF_ACTIVE ){ |
3666 | mejdrech | 174 | ++ device->stats.tx_packets; |
175 | ++ device->stats.rx_packets; |
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176 | // TODO packet size |
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177 | //device->stats->tx_bytes += ; |
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178 | //device->stats->rx_bytes += ; |
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179 | ll_message( device, NET_LL_RECEIVED, arg2, NULL, NULL, NULL, NULL ); |
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180 | return EOK; |
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181 | }else{ |
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182 | return EPERM; |
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183 | } |
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184 | } |
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185 | |||
186 | int netif_start_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ){ |
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3685 | mejdrech | 187 | return change_state_message( arg1, NETIF_ACTIVE ); |
3666 | mejdrech | 188 | } |
189 | |||
190 | int netif_stop_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t * result1, ipcarg_t * result2, ipcarg_t * result3 ){ |
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3685 | mejdrech | 191 | return change_state_message( arg1, NETIF_STOPPED ); |
3666 | mejdrech | 192 | } |
193 | |||
194 | /** @} |
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195 | */ |