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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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44 | #include "../messages.h" |
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45 | #include "../modules.h" |
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46 | |||
47 | #include "netif.h" |
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48 | |||
49 | #define DEFAULT_MTU 1500 |
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50 | |||
51 | #define NAME "lo - loopback interface" |
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52 | |||
53 | netif_globals_t netif_globals; |
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54 | |||
55 | void change_status( netif_device_ref device, netif_status_t status ); |
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56 | int change_status_message( netif_device_id_t device_id, netif_status_t status ); |
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57 | int netif_create( netif_device_id_t device_id, netif_device_ref * device ); |
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58 | int netif_call( ipc_callid_t callid ); |
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59 | int netif_initialize( void ); |
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60 | void netif_print_name( void ); |
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61 | 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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62 | 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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63 | 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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64 | 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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65 | 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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66 | |||
67 | void change_status( netif_device_ref device, netif_status_t status ){ |
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68 | device->status = status; |
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69 | ll_message( device, NET_LL_DEVICE_STATUS_CHANGED, device->status, NULL, NULL, NULL, NULL ); |
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70 | } |
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71 | |||
72 | int change_status_message( netif_device_id_t device_id, netif_status_t status ){ |
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73 | ERROR_DECLARE; |
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74 | |||
75 | netif_device_ref device; |
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76 | |||
77 | ERROR_PROPAGATE( netif_device_find( device_id, & device )); |
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78 | change_status( device, status ); |
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79 | return EOK; |
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80 | } |
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81 | |||
82 | int netif_create( netif_device_id_t device_id, netif_device_ref * device ){ |
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83 | ERROR_DECLARE; |
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84 | |||
85 | if( netif_device_map_count( & netif_globals.netif_device_map ) > 0 ){ |
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86 | return EXDEV; |
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87 | }else{ |
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88 | * device = ( netif_device_ref ) malloc( sizeof( netif_device_t )); |
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89 | if( !( * device )) return ENOMEM; |
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90 | // ( ** device ).device_id = netif_device_id_generate( 1 ); |
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91 | ( ** device ).device_id = device_id; |
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92 | ( ** device ).ll_registered = NULL; |
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93 | netif_device_stats_null( &(( ** device ).stats )); |
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94 | ( ** device ).status = NETIF_STOPPED; |
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95 | ( ** device ).flags = NULL; |
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96 | ( ** device ).mtu = DEFAULT_MTU; |
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97 | if( ERROR_OCCURED( netif_device_map_add( & netif_globals.netif_device_map, ( ** device ).device_id, * device ))){ |
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98 | free( * device ); |
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99 | * device = NULL; |
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100 | return ERROR_CODE; |
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101 | } |
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102 | } |
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103 | return EOK; |
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104 | } |
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105 | |||
106 | int netif_call( ipc_callid_t callid ){ |
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107 | return EOK; |
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108 | } |
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109 | |||
110 | int netif_initialize( void ){ |
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111 | int phonehash; |
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112 | |||
113 | return REGISTER_ME( SERVICE_LO, & phonehash ); |
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114 | } |
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115 | |||
116 | void netif_print_name( void ){ |
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117 | printf( NAME ); |
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118 | } |
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119 | |||
120 | 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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121 | ERROR_DECLARE; |
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122 | |||
123 | netif_device_ref device; |
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124 | |||
125 | ERROR_PROPAGATE( netif_create( arg1, & device )); |
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126 | networking_message( NET_NETWORKING_DEVICE, device->device_id, NULL, NULL, NULL, NULL, NULL ); |
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127 | return EOK; |
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128 | } |
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129 | |||
130 | 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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131 | ERROR_DECLARE; |
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132 | |||
133 | netif_device_ref device; |
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134 | |||
135 | ERROR_PROPAGATE( netif_create( arg1, & device )); |
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136 | return EOK; |
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137 | } |
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138 | |||
139 | 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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140 | ERROR_DECLARE; |
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141 | |||
142 | netif_device_ref device; |
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143 | |||
144 | ERROR_PROPAGATE( netif_device_find( arg1, & device )); |
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145 | if( device->status == NETIF_ACTIVE ){ |
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146 | ++ device->stats.tx_packets; |
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147 | ++ device->stats.rx_packets; |
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148 | // TODO packet size |
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149 | //device->stats->tx_bytes += ; |
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150 | //device->stats->rx_bytes += ; |
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151 | ll_message( device, NET_LL_RECEIVED, arg2, NULL, NULL, NULL, NULL ); |
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152 | return EOK; |
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153 | }else{ |
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154 | return EPERM; |
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155 | } |
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156 | } |
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157 | |||
158 | 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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159 | return change_status_message( arg1, NETIF_ACTIVE ); |
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160 | } |
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161 | |||
162 | 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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163 | return change_status_message( arg1, NETIF_STOPPED ); |
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164 | } |
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165 | |||
166 | /** @} |
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167 | */ |