| 0,0 → 1,202 |
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| /* |
| * Copyright (c) 2008 Lukas Mejdrech |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup net |
| * @{ |
| */ |
| |
| /** @file |
| */ |
| |
| #include <async.h> |
| #include <errno.h> |
| #include <stdio.h> |
| |
| #include <ipc/ipc.h> |
| #include <ipc/services.h> |
| |
| #include "../../err.h" |
| #include "../../messages.h" |
| #include "../../modules.h" |
| |
| #include "../../structures/measured_strings.h" |
| #include "../../structures/packet/packet.h" |
| |
| #include "../netif.h" |
| |
| #define DEFAULT_MTU 1500 |
| |
| #define NAME "lo - loopback interface" |
| |
| netif_globals_t netif_globals; |
| |
| int change_state_message( device_id_t device_id, device_state_t state ); |
| int create( device_id_t device_id, device_ref * device ); |
| int initialize( void ); |
| void netif_print_name( void ); |
| int probe_auto_message( void ); |
| int probe_message( device_id_t device_id, int irq, int io ); |
| int send_message( device_id_t device_id, packet_t packet ); |
| int start_message( device_id_t device_id ); |
| int stop_message( device_id_t device_id ); |
| |
| int change_state_message( device_id_t device_id, device_state_t state ){ |
| ERROR_DECLARE; |
| |
| device_ref device; |
| |
| ERROR_PROPAGATE( find_device( device_id, & device )); |
| if( device->state != state ){ |
| device->state = state; |
| nil_message( device, NET_NIL_DEVICE_STATE, device->state, NULL, NULL, NULL, NULL ); |
| } |
| return EOK; |
| } |
| |
| int create( device_id_t device_id, device_ref * device ){ |
| ERROR_DECLARE; |
| |
| if( device_map_count( & netif_globals.device_map ) > 0 ){ |
| return EXDEV; |
| }else{ |
| * device = ( device_ref ) malloc( sizeof( device_t )); |
| if( !( * device )) return ENOMEM; |
| ( ** device ).device_id = device_id; |
| ( ** device ).nil_phone = -1; |
| ( ** device ).specific = NULL; |
| null_device_stats( &(( ** device ).stats )); |
| ( ** device ).state = NETIF_STOPPED; |
| ( ** device ).flags = NULL; |
| ( ** device ).mtu = DEFAULT_MTU; |
| if( ERROR_OCCURED( device_map_add( & netif_globals.device_map, ( ** device ).device_id, * device ))){ |
| free( * device ); |
| * device = NULL; |
| return ERROR_CODE; |
| } |
| } |
| return EOK; |
| } |
| |
| int initialize( void ){ |
| ipcarg_t phonehash; |
| |
| return REGISTER_ME( SERVICE_LO, & phonehash ); |
| } |
| |
| void netif_print_name( void ){ |
| printf( NAME ); |
| } |
| |
| int probe_auto_message( void ){ |
| /* ERROR_DECLARE; |
| |
| device_ref device; |
| |
| ERROR_PROPAGATE( create( arg1, & device )); |
| ipc_call_sync_3_3( netif_globals.networking_phone, NET_NET_DEVICE, device->device_id, NULL, NULL, NULL, NULL, NULL ); |
| */ return ENOTSUP; |
| } |
| |
| int probe_message( device_id_t device_id, int irq, int io ){ |
| ERROR_DECLARE; |
| |
| device_ref device; |
| aid_t message; |
| ipc_call_t answer; |
| measured_string_t configuration[ 1 ] = {{ "MTU", 3 }}; |
| int count = 1; |
| measured_string_ref settings; |
| char * data; |
| |
| // create a new device |
| ERROR_PROPAGATE( create( device_id, & device )); |
| // get configuration |
| message = async_send_2( netif_globals.networking_phone, NET_NET_GET_DEVICE_CONF, device->device_id, count, & answer ); |
| // send names and get settings |
| if( ERROR_OCCURED( measured_strings_send( netif_globals.networking_phone, configuration, count )) |
| || ERROR_OCCURED( measured_strings_return( netif_globals.networking_phone, & settings, & data, count ))){ |
| async_wait_for( message, NULL ); |
| return ERROR_CODE; |
| } |
| // MTU is the first one |
| if( settings && ( settings[ 0 ].value )){ |
| device->mtu = strtoul( settings[ 0 ].value, NULL, 0 ); |
| }else{ |
| device->mtu = DEFAULT_MTU; |
| } |
| // print the settings |
| printf("\n -MTU =\t%d", device->mtu ); |
| free( settings ); |
| free( data ); |
| // end request |
| async_wait_for( message, NULL ); |
| return EOK; |
| } |
| |
| int send_message( device_id_t device_id, packet_t packet ){ |
| ERROR_DECLARE; |
| |
| device_ref device; |
| size_t length; |
| aid_t message; |
| ipc_call_t answer; |
| ipcarg_t result; |
| packet_t received; |
| |
| ERROR_PROPAGATE( find_device( device_id, & device )); |
| if( device->state != NETIF_ACTIVE ) return EPERM; |
| ++ device->stats.tx_packets; |
| ++ device->stats.rx_packets; |
| length = packet_get_data_length( packet ); |
| device->stats.tx_bytes += length; |
| device->stats.rx_bytes += length; |
| received = packet_copy( packet ); |
| packet_destroy( packet ); |
| if( ! received ){ |
| ++ device->stats.rx_dropped; |
| return EOK; |
| } |
| message = async_send_1( device->nil_phone, NET_NIL_RECEIVED, ( device_id ), & answer ); |
| if( ERROR_OCCURED( packet_send( received, device->nil_phone ))){ |
| ++ device->stats.rx_dropped; |
| } |
| async_wait_for( message, & result ); |
| if( result != EOK ) ++ device->stats.rx_dropped; |
| return EOK; |
| } |
| |
| int start_message( device_id_t device_id ){ |
| return change_state_message( device_id, NETIF_ACTIVE ); |
| } |
| |
| int stop_message( device_id_t device_id ){ |
| return change_state_message( device_id, NETIF_STOPPED ); |
| } |
| |
| /** @} |
| */ |
| Property changes: |
|---|
| Added: svn:eol-style |
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| +native |
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| \ No newline at end of property |
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| Added: svn:mergeinfo |
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