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3466 mejdrech 1
/*
3912 mejdrech 2
 * Copyright (c) 2009 Lukas Mejdrech
3466 mejdrech 3
 * 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 ip
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 *  @{
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 */
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33
/** @file
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 */
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3466 mejdrech 36
#include <async.h>
37
#include <errno.h>
38
#include <stdio.h>
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#include <string.h>
3846 mejdrech 40
 
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#include <ipc/ipc.h>
42
#include <ipc/services.h>
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3886 mejdrech 44
#include "../../err.h"
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#include "../../messages.h"
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#include "../../modules.h"
3466 mejdrech 47
 
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#include "../../include/net_interface.h"
3886 mejdrech 49
#include "../../include/sockaddr.h"
50
#include "../../include/socket.h"
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#include "../../include/device.h"
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#include "../../include/arp_interface.h"
53
#include "../../include/nil_interface.h"
54
#include "../../include/il_interface.h"
55
#include "../../include/ip_interface.h"
3886 mejdrech 56
#include "../../structures/measured_strings.h"
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#include "../../structures/module_map.h"
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#include "../../structures/packet/packet_client.h"
3846 mejdrech 59
 
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#include "../../nil/nil_messages.h"
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62
#include "../il_messages.h"
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#include "ip.h"
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#include "ip_module.h"
3466 mejdrech 66
 
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#define DEFAULT_IPV     4
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#define ARP_NAME                "arp"
70
#define ARP_FILENAME            "/srv/arp"
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ip_globals_t    ip_globals;
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DEVICE_MAP_IMPLEMENT( ip_netifs, ip_netif_t )
75
 
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INT_MAP_IMPLEMENT( ip_protos, ip_proto_t )
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int ip_device_state_msg( int il_phone, device_id_t device_id, device_state_t state );
79
int ip_register( int il_phone, int protocol, int phone );
3846 mejdrech 80
 
3466 mejdrech 81
/** Initializes the module.
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 */
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int ip_initialize( async_client_conn_t client_connection ){
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    ERROR_DECLARE;
85
 
86
    ERROR_PROPAGATE( ip_netifs_initialize( & ip_globals.netifs ));
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    ERROR_PROPAGATE( ip_protos_initialize( & ip_globals.protos ));
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    ip_globals.client_connection = client_connection;
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    ERROR_PROPAGATE( modules_initialize( & ip_globals.modules ));
4307 mejdrech 90
    ERROR_PROPAGATE( add_module( NULL, & ip_globals.modules, ARP_NAME, ARP_FILENAME, SERVICE_ARP, arp_task_get_id(), arp_connect_module ));
3466 mejdrech 91
    return EOK;
92
}
93
 
4350 mejdrech 94
int ip_device_req( int il_phone, device_id_t device_id, services_t netif ){
3666 mejdrech 95
    ERROR_DECLARE;
96
 
4307 mejdrech 97
    ip_netif_ref        ip_netif;
98
    measured_string_t   names[ 9 ] = {{ "IPV", 3 }, { "IP_CONFIG", 9 }, { "IP_ADDR", 7 }, { "NETMASK", 7 }, { "GATEWAY", 7 }, { "BROADCAST", 9 }, { "DNS1", 4 }, { "DNS2", 4 }, { "ARP", 3 }};
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    measured_string_ref configuration;
100
    int                 count = 9;
101
    char *              data;
102
    int                 index;
3666 mejdrech 103
 
4307 mejdrech 104
    configuration = & names[ 0 ];
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    ip_netif = ( ip_netif_ref ) malloc( sizeof( ip_netif_t ));
106
    if( ! ip_netif ) return ENOMEM;
107
    ip_netif->device_id = device_id;
108
    // get configuration
4307 mejdrech 109
    ERROR_PROPAGATE( net_get_device_conf_req( ip_globals.net_phone, ip_netif->device_id, & configuration, count, & data ));
110
    if( configuration ){
111
        if( configuration[ 0 ].value ){
112
            ip_netif->ipv = strtol( configuration[ 0 ].value, NULL, 0 );
3846 mejdrech 113
        }else{
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            ip_netif->ipv = DEFAULT_IPV;
115
        }
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        ip_netif->dhcp = ! str_lcmp( configuration[ 1 ].value, "dhcp", configuration[ 1 ].length );
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        if( ip_netif->dhcp ){
118
            // TODO dhcp
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            net_free_settings( configuration, data );
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            free( ip_netif );
121
            return ENOTSUP;
122
        }else if( ip_netif->ipv == 4 ){
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            if( ERROR_OCCURRED( inet_pton( AF_INET, configuration[ 2 ].value, ( uint8_t * ) & ip_netif->address ))
124
            || ERROR_OCCURRED( inet_pton( AF_INET, configuration[ 3 ].value, ( uint8_t * ) & ip_netif->netmask ))
125
            || ( inet_pton( AF_INET, configuration[ 4 ].value, ( uint8_t * ) & ip_netif->gateway ) == EINVAL )
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            || ( inet_pton( AF_INET, configuration[ 5 ].value, ( uint8_t * ) & ip_netif->broadcast ) == EINVAL )
127
            || ( inet_pton( AF_INET, configuration[ 6 ].value, ( uint8_t * ) & ip_netif->dns1 ) == EINVAL )
128
            || ( inet_pton( AF_INET, configuration[ 7 ].value, ( uint8_t * ) & ip_netif->dns2 ) == EINVAL )){
129
                net_free_settings( configuration, data );
3846 mejdrech 130
                free( ip_netif );
131
                return EINVAL;
132
            }
133
        }else{
134
            // TODO ipv6
4307 mejdrech 135
            net_free_settings( configuration, data );
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            free( ip_netif );
137
            return ENOTSUP;
138
        }
4307 mejdrech 139
        if( configuration[ 8 ].value ){
140
            ip_netif->arp = get_running_module( & ip_globals.modules, configuration[ 8 ].value );
4192 mejdrech 141
            if( ! ip_netif->arp ){
4307 mejdrech 142
                printf( "Failed to start the arp %s\n", configuration[ 8 ].value );
143
                net_free_settings( configuration, data );
4192 mejdrech 144
                free( ip_netif );
145
                return EINVAL;
146
            }
147
        }else{
148
            ip_netif->arp = NULL;
149
        }
4307 mejdrech 150
        net_free_settings( configuration, data );
3846 mejdrech 151
    }
4351 mejdrech 152
    ip_netif->phone = bind_service( netif, ip_netif->device_id, SERVICE_IP, 0, ip_globals.client_connection );
4192 mejdrech 153
    if( ip_netif->phone < 0 ){
4350 mejdrech 154
        printf( "Failed to contact the nil service %d\n", netif );
4192 mejdrech 155
        free( ip_netif );
156
        return ip_netif->phone;
157
    }
158
    if( ip_netif->arp ){
159
        configuration[ 0 ].value = ( char * ) & ip_netif->address;
160
        configuration[ 0 ].length = CONVERT_SIZE( in_addr_t, char, 1 );
4350 mejdrech 161
        if( ERROR_OCCURRED( arp_device_req( ip_netif->arp->phone, ip_netif->device_id, SERVICE_IP, netif, & configuration[ 0 ] ))){
4192 mejdrech 162
            free( ip_netif );
163
            return ERROR_CODE;
164
        }
165
    }
166
    index = ip_netifs_add( & ip_globals.netifs, ip_netif->device_id, ip_netif );
167
    if( index < 0 ){
168
        free( ip_netif );
169
        return index;
170
    }
171
    if( ip_netif->arp ) ++ ip_netif->arp->usage;
3846 mejdrech 172
    // print the settings
4307 mejdrech 173
    printf( "New device registered:\n\tid\t= %d\n\tphone\t= %d\n\tIPV\t= %d\n", ip_netif->device_id, ip_netif->phone, ip_netif->ipv );
174
    printf( "\tconfiguration\t= %s\n", ip_netif->dhcp ? "dhcp" : "static" );
4192 mejdrech 175
    // TODO ipv6 addresses
3846 mejdrech 176
    data = malloc( INET_ADDRSTRLEN );
177
    if( data ){
178
        inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->address, data, INET_ADDRSTRLEN );
4307 mejdrech 179
        printf( "\taddress\t= %s\n", data );
3846 mejdrech 180
        inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->netmask, data, INET_ADDRSTRLEN );
4307 mejdrech 181
        printf( "\tnetmask\t= %s\n", data );
3846 mejdrech 182
        inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->gateway, data, INET_ADDRSTRLEN );
4307 mejdrech 183
        printf( "\tgateway\t= %s\n", data );
3846 mejdrech 184
        inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->broadcast, data, INET_ADDRSTRLEN );
4307 mejdrech 185
        printf( "\tbroadcast\t= %s\n", data );
3846 mejdrech 186
        inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->dns1, data, INET_ADDRSTRLEN );
4307 mejdrech 187
        printf( "\tdns1\t= %s\n", data );
3846 mejdrech 188
        inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->dns2, data, INET_ADDRSTRLEN );
4307 mejdrech 189
        printf( "\tdns2\t= %s\n", data );
3846 mejdrech 190
        free( data );
191
    }
192
    return EOK;
193
}
194
 
4307 mejdrech 195
int ip_device_state_msg( int il_phone, device_id_t device_id, device_state_t state ){
4332 mejdrech 196
//  ERROR_DECLARE;
4243 mejdrech 197
 
198
    ip_netif_ref    netif;
199
 
4332 mejdrech 200
/*  measured_string_t address;
4243 mejdrech 201
    measured_string_ref translation;
202
    char *          data;
4332 mejdrech 203
*/
4243 mejdrech 204
    netif = ip_netifs_find( & ip_globals.netifs, device_id );
205
    if( ! netif ) return ENOENT;
3846 mejdrech 206
    // TODO state
4307 mejdrech 207
    printf( "ip - device %d changed state to %d\n\n", device_id, state );
4332 mejdrech 208
/*  if( netif->arp ){
4243 mejdrech 209
        address.value = ( char * ) & netif->gateway;
210
        address.length = CONVERT_SIZE( in_addr_t, char, 1 );
4327 mejdrech 211
        if( ERROR_OCCURRED( arp_translate_req( netif->arp->phone, netif->device_id, SERVICE_IP, & address, & translation, & data ))){
212
            sleep( 2 );
213
            ERROR_PROPAGATE( arp_translate_req( netif->arp->phone, netif->device_id, SERVICE_IP, & address, & translation, & data ));
214
        }
4307 mejdrech 215
        printf( "\tgateway translated to\t= %X:%X:%X:%X:%X:%X\n", data[ 0 ], data[ 1 ], data[ 2 ], data[ 3 ], data[ 4 ], data[ 5 ] );
4243 mejdrech 216
        free( translation );
217
        free( data );
218
    }
4332 mejdrech 219
*/  return EOK;
3846 mejdrech 220
}
221
 
4307 mejdrech 222
int ip_bind_service( services_t service, services_t me, async_client_conn_t receiver ){
223
    //TODO receive function
224
    return EOK;
225
}
226
 
227
int ip_connect_module( services_t service ){
228
    return EOK;
229
}
230
 
231
int ip_register( int il_phone, int protocol, int phone ){
3846 mejdrech 232
    ip_proto_ref    proto;
4192 mejdrech 233
    int             index;
3846 mejdrech 234
 
235
    proto = ( ip_proto_ref ) malloc( sizeof( ip_protos_t ));
236
    if( ! proto ) return ENOMEM;
237
    proto->protocol = protocol;
238
    proto->phone = phone;
4192 mejdrech 239
    index = ip_protos_add( & ip_globals.protos, proto->protocol, proto );
240
    if( index < 0 ){
3846 mejdrech 241
        free( proto );
4192 mejdrech 242
        return index;
3846 mejdrech 243
    }
4307 mejdrech 244
    printf( "New protocol registered:\n\tprotocol\t= %d\n\tphone\t= %d\n", proto->protocol, proto->phone );
3846 mejdrech 245
    return EOK;
246
}
247
 
4307 mejdrech 248
int ip_send_msg( int il_phone, device_id_t device_id, packet_t packet, services_t target ){
3846 mejdrech 249
    // TODO send packet
4307 mejdrech 250
    printf( "Packet to send via %d: %s\n", device_id, packet_get_data( packet ));
251
    pq_release( ip_globals.net_phone, packet_get_id( packet ));
3846 mejdrech 252
    return EOK;
253
}
254
 
255
int ip_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
256
    ERROR_DECLARE;
257
 
258
    packet_t    packet;
259
 
260
    * answer_count = 0;
261
    switch( IPC_GET_METHOD( * call )){
3466 mejdrech 262
        case IPC_M_PHONE_HUNGUP:
263
            return EOK;
3666 mejdrech 264
        case NET_IL_DEVICE:
4307 mejdrech 265
            return ip_device_req( 0, IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ));
3846 mejdrech 266
        case IPC_M_CONNECT_TO_ME:
4307 mejdrech 267
            return ip_register( 0, IL_GET_PROTO( call ), IPC_GET_PHONE( call ));
268
        case NET_IL_SEND:
269
            ERROR_PROPAGATE( packet_translate( ip_globals.net_phone, & packet, IPC_GET_PACKET( call )));
270
            return ip_send_msg( 0, IPC_GET_DEVICE( call ), packet, 0 );
4351 mejdrech 271
        case NET_IL_DEVICE_STATE:
272
        case NET_NIL_DEVICE_STATE:
273
            return ip_device_state_msg( 0, IPC_GET_DEVICE( call ), IPC_GET_STATE( call ));
274
        // TODO packet received
275
        case NET_IL_RECEIVED:
276
        case NET_NIL_RECEIVED:
277
            ERROR_PROPAGATE( packet_translate( ip_globals.net_phone, & packet, IPC_GET_PACKET( call )));
278
            //return il_receive_msg( 0, IPC_GET_DEVICE( call ), packet );
3466 mejdrech 279
    }
280
    return ENOTSUP;
281
}
282
 
283
/** @}
284
 */