WebSVN – HelenOS – Diff – /branches/network/uspace/srv/net/networking/networking.c


/*
 * Copyright (c) 2009 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 <ctype.h>
#include <errno.h>
#include <malloc.h>
#include <stdio.h>
#include <task.h>
#include <unistd.h>
 
#include <ipc/ipc.h>
#include <ipc/services.h>
 
#include "../err.h"
#include "../messages.h"
#include "../modules.h"
//#include "../self_test.h"
 
#include "../structures/char_map.h"
#include "../structures/generic_char_map.h"
#include "../structures/measured_strings.h"
#include "../structures/packet/packet.h"
#include "../structures/packet/packet_server.h"
 
#include "../il/ip/ip_messages.h"
#include "../netif/device.h"
 
#if IP_BUNDLE
 
    #include "../ip/ip_module.h"
 
#endif
 
#if TCP_BUNDLE
 
    #include "../tcp/tcp_module.h"
 
#endif
 
#define NAME    "Networking"
 
#define LO_NAME             "lo"
#define LO_FILENAME         "/srv/lo"
#define DP8390_NAME         "dp8390"
#define DP8390_FILENAME     "/srv/dp8380"
#define ETHERNET_NAME           "ethernet"
#define ETHERNET_FILENAME       "/srv/ethernet"
#define IP_NAME             "ip"
#define IP_FILENAME         "/srv/ip"
 
#define IPC_GET_DEVICE( call )  ( device_id_t ) IPC_GET_ARG1( * call )
#define IPC_GET_COUNT( call )   ( int ) IPC_GET_ARG2( * call )
 
typedef struct module_struct    module_t;
typedef module_t *      module_ref;
 
typedef struct netif        netif_t;
typedef netif_t *       netif_ref;
 
typedef struct networking_globals   networking_globals_t;
 
DEVICE_MAP_DECLARE( netifs, netif_t )
 
GENERIC_CHAR_MAP_DECLARE( measured_strings, measured_string_t )
 
GENERIC_CHAR_MAP_DECLARE( modules, module_t )
 
struct module_struct{
    task_id_t   task_id;
    services_t  service;
    int     phone;
    int     usage;
    const char *    name;
    const char *    filename;
};
 
/** A present network interface device.
 */
struct netif{
    /** A system-unique network interface identifier.
     */
    device_id_t     id;
    /** A serving network interface driver module index.
     */
    module_ref      driver;
    /** A serving link layer module index.
     */
    module_ref      nil;
    /** A serving internet layer module index.
     */
    module_ref      il;
    /** A system-unique network interface name.
     */
    char *          name;
    /** Configuration.
     */
    measured_strings_t  configuration;
};
 
/** A networking module global variables.
 */
struct networking_globals{
    /** Present network interfaces.
     */
    netifs_t        netifs;
    /** Network interface structure indices by names.
     */
    char_map_t      netif_names;
    /** Available modules.
     */
    modules_t       modules;
    /** Global configuration.
     */
    measured_strings_t  configuration;
};
 
void    networking_print_name( void );
int     add_module( module_ref * module, modules_ref modules, const char const * name, const char const * filename, services_t service, task_id_t task_id );
measured_string_ref configuration_find( measured_strings_ref configuration, const char * name );
int networking_start_module( async_client_conn_t client_connection );
int     networking_initialize( void );
int networking_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
int net_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
//int       parse_line( measured_strings_ref configuration, char * line );
int     add_configuration( measured_strings_ref configuration, const char * name, const char * value );
int     read_configuration( void );
task_id_t   spawn( const char * const fname );
int     startup( void );
device_id_t generate_new_device_id( void );
 
static networking_globals_t networking_globals;
 
DEVICE_MAP_IMPLEMENT( netifs, netif_t )
 
GENERIC_CHAR_MAP_IMPLEMENT( measured_strings, measured_string_t )
 
GENERIC_CHAR_MAP_IMPLEMENT( modules, module_t )
 
void networking_print_name( void ){
    printf( NAME );
}
 
int add_module( module_ref * module, modules_ref modules, const char * name, const char * filename, services_t service, task_id_t task_id ){
    ERROR_DECLARE;
 
    module_ref  tmp_module;
 
    tmp_module = ( module_ref ) malloc( sizeof( module_t ));
    if( ! tmp_module ) return ENOMEM;
    tmp_module->task_id = task_id;
    tmp_module->phone = 0;
    tmp_module->usage = 0;
    tmp_module->name = name;
    tmp_module->filename = filename;
    tmp_module->service = service;
    if( ERROR_OCCURRED( modules_add( modules, tmp_module->name, 0, tmp_module ))){
        free( tmp_module );
        return ERROR_CODE;
    }
    if( module ) * module = tmp_module;
    return EOK;
}
 
int networking_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
#ifdef NETWORKING_module
        //TODO map to *_message
        if( IS_NET_IL_MESSAGE( call ) || IS_NET_IP_MESSAGE( call )){
            return ip_message( callid, call, answer, answer_count );
/*      }else if( IS_NET_ARP_MESSAGE( call )){
            return arp_message( callid, call, answer, answer_count );
*//*        }else if( IS_NET_RARP_MESSAGE( call )){
            return rarp_message( callid, call, answer, answer_count );
*//*        }else if( IS_NET_ICMP_MESSAGE( call )){
            return icmp_message( callid, call, answer, answer_count );
*//*        }else if( IS_NET_UDP_MESSAGE( call )){
            return udp_message( callid, call, answer, answer_count );
*/      }else if( IS_NET_TCP_MESSAGE( call )){
            return tcp_message( callid, call, answer, answer_count );
/*      }else if( IS_NET_SOCKET_MESSAGE( call )){
            return socket_message( callid, call, answer, answer_count );
*//*        }else if( IS_NET_NIL_MESSAGE( call ) || IS_NET_ETHERNET_MESSAGE( call )){
            return ethernet_message( callid, call, answer, answer_count );
*/      }else{
#endif
            if( IS_NET_PACKET_MESSAGE( call )){
                return packet_server_message( callid, call, answer, answer_count );
            }else{
                return net_message( callid, call, answer, answer_count );
            }
#ifdef NETWORKING_module
        }
#endif
}
 
int networking_start_module( async_client_conn_t client_connection ){
    ERROR_DECLARE;
 
    ipcarg_t    phonehash;
 
    async_set_client_connection( client_connection );
    ERROR_PROPAGATE( pm_init());
    if( ERROR_OCCURRED( networking_initialize())
    || ERROR_OCCURRED( REGISTER_ME( SERVICE_NETWORKING, & phonehash ))){
        pm_destroy();
        return ERROR_CODE;
    }
 
    async_manager();
 
    pm_destroy();
    return EOK;
}
 
int networking_initialize( void ){
    ERROR_DECLARE;
 
    task_id_t   task_id;
 
    netifs_initialize( & networking_globals.netifs );
    char_map_initialize( & networking_globals.netif_names );
    modules_initialize( & networking_globals.modules );
    measured_strings_initialize( & networking_globals.configuration );
 
    // run self tests
//  ERROR_PROPAGATE( self_test());
 
    ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, LO_NAME, LO_FILENAME, SERVICE_LO, 0 ));
    ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, DP8390_NAME, DP8390_FILENAME, SERVICE_DP8390, 0 ));
    ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, ETHERNET_NAME, ETHERNET_FILENAME, SERVICE_ETHERNET, 0 ));
 
#ifdef NETWORKING_modular
    task_id = spawn( "/srv/ip" );
    if( ! task_id ) return EINVAL;
    ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, IP_NAME, IP_FILENAME, SERVICE_IP, task_id ));
//  if( ! spawn( "/srv/udp" )) return EINVAL;
    if( ! spawn( "/srv/tcp" )) return EINVAL;
//  if( ! spawn( "/srv/socket" )) return EINVAL;
//  not always necesssary
//  if( ! spawn( "/srv/arp" )) return EINVAL;
//  if( ! spawn( "/srv/rarp" )) return EINVAL;
//  if( ! spawn( "/srv/icmp" )) return EINVAL;
 
#else
#ifdef NETWORKING_module
    ipcarg_t    phonehash;
 
    ERROR_PROPAGATE( REGISTER_ME( SERVICE_IP, & phonehash ));
    ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, IP_NAME, IP_FILENAME, SERVICE_IP, task_get_id()));
    ERROR_PROPAGATE( ip_initialize());
//  ERROR_PROPAGATE( REGISTER_ME( SERVICE_ARP, & phonehash ));
//  ERROR_PROPAGATE( arp_initialize());
//  ERROR_PROPAGATE( REGISTER_ME( SERVICE_RARP, & phonehash ));
//  ERROR_PROPAGATE( rarp_initialize());
//  ERROR_PROPAGATE( REGISTER_ME( SERVICE_ICMP, & phonehash ));
//  ERROR_PROPAGATE( icmp_initialize());
//  ERROR_PROPAGATE( REGISTER_ME( SERVICE_UDP, & phonehash ));
//  ERROR_PROPAGATE( udp_initialize());
    ERROR_PROPAGATE( REGISTER_ME( SERVICE_TCP, & phonehash ));
    ERROR_PROPAGATE( tcp_initialize());
//  ERROR_PROPAGATE( REGISTER_ME( SERVICE_SOCKET, & phonehash ));
//  ERROR_PROPAGATE( socket_initialize());
//  ERROR_PROPAGATE( REGISTER_ME( SERVICE_ETHERNET, & phonehash ));
//  ERROR_PROPAGATE( ethernet_initialize());
#endif
#endif
 
    return EOK;
}
 
//TODO as ip.c
int net_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
    ERROR_DECLARE;
 
    measured_string_ref strings;
    char *          data;
    int         index;
    measured_string_ref setting;
    measured_strings_ref    configuration;
    netif_ref       netif;
 
    * answer_count = 0;
    switch( IPC_GET_METHOD( * call )){
        case IPC_M_PHONE_HUNGUP:
            return EOK;
        case NET_NET_DEVICE:
            // TODO configure, register
            printf( "\nNetworking: new netif %d", IPC_GET_DEVICE( call ));
            return EOK;
        case NET_NET_GET_DEVICE_CONF:
            ERROR_PROPAGATE( measured_strings_receive( & strings, & data, IPC_GET_COUNT( call )));
            netif = netifs_find( & networking_globals.netifs, IPC_GET_DEVICE( call ));
            if( netif ){
                configuration = & netif->configuration;
            }else{
                configuration = NULL;
            }
            for( index = 0; index < IPC_GET_COUNT( call ); ++ index ){
                setting = measured_strings_find( configuration, strings[ index ].value, 0 );
                if( ! setting ){
                    setting = measured_strings_find( & networking_globals.configuration, strings[ index ].value, 0 );
                }
                if( setting ){
                    strings[ index ].length = setting->length;
                    strings[ index ].value = setting->value;
                }else{
                    strings[ index ].length = 0;
                    strings[ index ].value = NULL;
                }
            }
            // strings should not contain received data anymore
            free( data );
            ERROR_CODE = measured_strings_reply( strings, IPC_GET_COUNT( call ));
            free( strings );
            return ERROR_CODE;
        case NET_NET_GET_CONF:
            // arg1 = count
            ERROR_PROPAGATE( measured_strings_receive( & strings, & data, IPC_GET_COUNT( call )));
            for( index = 0; index < IPC_GET_COUNT( call ); ++ index ){
                setting = measured_strings_find( & networking_globals.configuration, strings[ index ].value, 0 );
                if( setting ){
                    strings[ index ].length = setting->length;
                    strings[ index ].value = setting->value;
                }else{
                    strings[ index ].length = 0;
                    strings[ index ].value = NULL;
                }
            }
            // strings should not contain received data anymore
            free( data );
            ERROR_CODE = measured_strings_reply( strings, IPC_GET_COUNT( call ));
            free( strings );
            return ERROR_CODE;
        case NET_NET_STARTUP:
            return startup();
    }
    return ENOTSUP;
}
 
/*
int parse_line( measured_strings_ref configuration, char * line ){
    ERROR_DECLARE;
 
    measured_string_ref setting;
    char *          name;
    char *          value;
 
    // from the beginning
    name = line;
    // skip spaces
    while( isspace( * name )) ++ name;
    // remember the name start
    value = name;
    // skip the name
    while( isalnum( * value ) || ( * value == '_' )){
        // make uppercase
//      * value = toupper( * value );
        ++ value;
    }
    if( * value == '=' ){
        // terminate the name
        * value = '\0';
    }else{
        // terminate the name
        * value = '\0';
        // skip until '='
        ++ value;
        while(( * value ) && ( * value != '=' )) ++ value;
        // not found?
        if( * value != '=' ) return EINVAL;
    }
    ++ value;
    // skip spaces
    while( isspace( * value )) ++ value;
    // create a bulk measured string till the end
    setting = measured_string_create_bulk( value, -1 );
    if( ! setting ) return ENOMEM;
    // add the configuration setting
    if( ERROR_OCCURRED( measured_strings_add( configuration, name, 0, setting ))){
        free( setting );
        return ERROR_CODE;
    }
    return EOK;
}
*/
 
int add_configuration( measured_strings_ref configuration, const char * name, const char * value ){
    ERROR_DECLARE;
 
    measured_string_ref setting;
 
    setting = measured_string_create_bulk( value, 0 );
    if( ! setting ) return ENOMEM;
    // add the configuration setting
    if( ERROR_OCCURRED( measured_strings_add( configuration, name, 0, setting ))){
        free( setting );
        return ERROR_CODE;
    }
    return EOK;
}
 
device_id_t generate_new_device_id( void ){
    return netifs_count( & networking_globals.netifs ) + 1;
}
 
int read_configuration( void ){
    ERROR_DECLARE;
 
    netif_ref       netif;
    measured_string_ref setting;
    services_t      internet_service;
    int         index;
 
    // read general configuration
    ERROR_PROPAGATE( add_configuration( & networking_globals.configuration, "IPV", "4" ));
 
    // read network interfaces configuration
 
    // static loopback initialization
//  printf( "\nloopback initialization" );
    netif = ( netif_ref ) malloc( sizeof( netif_t ));
    if( ! netif ) return ENOMEM;
    netif->id = generate_new_device_id();
    ERROR_PROPAGATE( measured_strings_initialize( & netif->configuration ));
    if( ERROR_OCCURRED( add_configuration( & netif->configuration, "NAME", LO_NAME ))
    || ERROR_OCCURRED( add_configuration( & netif->configuration, "NETIF", LO_NAME ))
    || ERROR_OCCURRED( add_configuration( & netif->configuration, "IL", IP_NAME ))
    || ERROR_OCCURRED( add_configuration( & netif->configuration, "MTU", "1500" ))
    || ERROR_OCCURRED( add_configuration( & netif->configuration, "IP_CONFIG", "STATIC" ))
    || ERROR_OCCURRED( add_configuration( & netif->configuration, "IP_ADDR", "127.0.0.1" ))
    || ERROR_OCCURRED( add_configuration( & netif->configuration, "NETMASK", "255.0.0.0" ))){
        measured_strings_destroy( & netif->configuration );
        free( netif );
        return ERROR_CODE;
    }
    // mandatory name
//  printf( "\n\tname" );
    setting = measured_strings_find( & netif->configuration, "NAME", 0 );
    if( ! setting ){
        measured_strings_destroy( & netif->configuration );
        free( netif );
        return EINVAL;
    }
    netif->name = setting->value;
//  printf( " %s OK", netif->name );
    // mandatory netif
//  printf( "\n\tnetif" );
    setting = measured_strings_find( & netif->configuration, "NETIF", 0 );
    if( ! setting ){
//      printf( " unknown" );
        measured_strings_destroy( & netif->configuration );
        free( netif );
        return EINVAL;
    }
//  printf( " find %s in %d?", setting->value, modules_count( & networking_globals.modules ));
    netif->driver = modules_find( & networking_globals.modules, setting->value, 0 );
    if( ! netif->driver ){
//      printf( " not found" );
        // TODO register the unknown one
        measured_strings_destroy( & netif->configuration );
        free( netif );
        return EINVAL;
    }
//  printf( " found" );
    if( ! netif->driver->task_id ){
        netif->driver->task_id = spawn( netif->driver->filename );
        if( ! netif->driver->task_id ){
            measured_strings_destroy( & netif->configuration );
            free( netif );
            return EINVAL;
        }
    }
//  printf( " OK" );
    // optional link layer
//  printf( "\n\tlink layer" );
    setting = measured_strings_find( & netif->configuration, "NIL", 0 );
    if( setting ){
        netif->nil = modules_find( & networking_globals.modules, setting->value, 0 );
        if( ! netif->nil ){
            // TODO register the unknown one
            -- netif->driver->usage;
            measured_strings_destroy( & netif->configuration );
            free( netif );
            return EINVAL;
        }
        if( ! netif->nil->task_id ){
            netif->nil->task_id = spawn( netif->nil->filename );
            if( ! netif->nil->task_id ){
                -- netif->driver->usage;
                measured_strings_destroy( & netif->configuration );
                free( netif );
                return EINVAL;
            }
        }
    }else{
        netif->nil = NULL;
    }
    // mandatory internet layer
//  printf( "\n\tinternet layer" );
    setting = measured_strings_find( & netif->configuration, "IL", 0 );
    if( ! setting ){
        -- netif->driver->usage;
        -- netif->nil->usage;
        measured_strings_destroy( & netif->configuration );
        free( netif );
        return EINVAL;
    }
//  printf( " set %s", setting->value );
    netif->il = modules_find( & networking_globals.modules, setting->value, 0 );
    if( ! netif->il ){
        // TODO register the unknown one
        -- netif->driver->usage;
        -- netif->nil->usage;
        measured_strings_destroy( & netif->configuration );
        free( netif );
        return EINVAL;
    }
//  printf( " found" );
    if( ! netif->il->task_id ){
        netif->il->task_id = spawn( netif->il->filename );
        if( ! netif->il->task_id ){
            -- netif->driver->usage;
            -- netif->nil->usage;
            measured_strings_destroy( & netif->configuration );
            free( netif );
            return EINVAL;
        }
    }
    index = netifs_add( & networking_globals.netifs, netif->id, netif );
    if( index < 0 ){
        free( netif );
        return ERROR_CODE;
    }
    if( ERROR_OCCURRED( char_map_add( & networking_globals.netif_names, netif->name, 0, index ))){
        netifs_exclude_index( & networking_globals.netifs, index );
        return ERROR_CODE;
    }
//  printf( "\nloopback OK" );
    // end of the static loopback initialization
    // startup the loopback interface
    if( ! netif->driver->phone ){
//      printf( " connect?" );
        netif->driver->phone = connect_to_service( netif->driver->service );
    }
//  printf( " connected" );
    // TODO io, irq
    ERROR_PROPAGATE( async_req_3_0( netif->driver->phone, NET_NETIF_PROBE, netif->id, 0, 0 ));
    ++ netif->driver->usage;
    if( netif->nil ){
        if( ! netif->nil->phone ){
            netif->nil->phone = connect_to_service( netif->nil->service );
        }
        ERROR_PROPAGATE( async_req_2_0( netif->nil->phone, NET_NIL_DEVICE, netif->id, netif->driver->service ));
        ++ netif->nil->usage;
        internet_service = netif->nil->service;
//      printf( " OK" );
    }else{
        internet_service = netif->driver->service;
//      printf( " none" );
    }
    if( ! netif->il->phone ){
//      printf( " connect" );
        netif->il->phone = connect_to_service( netif->il->service );
    }
    // TODO IL_BUNDLE
    ERROR_PROPAGATE( async_req_2_0( netif->il->phone, NET_IL_DEVICE, netif->id, internet_service ));
    ++ netif->il->usage;
    // TODO startup?
    ERROR_PROPAGATE( async_req_1_0( netif->driver->phone, NET_NETIF_START, netif->id ));
//  printf( "\n LO OK" );
    return EOK;
}
 
task_id_t spawn( const char * const fname ){
    char * const    argv[ 2 ] = { fname, NULL };
    task_id_t   res;
 
//  printf( "Spawning %s\n", fname );
//  argv[ 0 ] = fname;
//  argv[ 1 ] = NULL;
    res = task_spawn( fname, argv );
    if( res != 0 ){
        /* Success */
        usleep( 50000 );
    }
    return res;
}
 
int startup( void ){
    ERROR_DECLARE;
 
    // read configuration files
    if( ERROR_OCCURRED( read_configuration())) return ERROR_CODE;
 
    // start network interfaces and needed modules
//  start_device( "/sbin/lo", "/sbin/dummy_link_layer" );
    return EOK;
}
 
/** @}
 */
 

Rev 3991	Rev 4155
1	/*	1	/*
2	* Copyright (c) 2009 Lukas Mejdrech	2	* Copyright (c) 2009 Lukas Mejdrech
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup net	29	/** @addtogroup net
30	* @{	30	* @{
31	*/	31	*/
32		32
33	/** @file	33	/** @file
34	*/	34	*/
35		35
36	#include <async.h>	36	#include <async.h>
37	#include <ctype.h>	37	#include <ctype.h>
38	#include <errno.h>	38	#include <errno.h>
39	#include <malloc.h>	39	#include <malloc.h>
40	#include <stdio.h>	40	#include <stdio.h>
41	#include <task.h>	41	#include <task.h>
42	#include <unistd.h>	42	#include <unistd.h>
43		43
44	#include <ipc/ipc.h>	44	#include <ipc/ipc.h>
45	#include <ipc/services.h>	45	#include <ipc/services.h>
46		46
47	#include "../err.h"	47	#include "../err.h"
48	#include "../messages.h"	48	#include "../messages.h"
49	#include "../modules.h"	49	#include "../modules.h"
50	//#include "../self_test.h"	50	//#include "../self_test.h"
51		51
52	#include "../structures/char_map.h"	52	#include "../structures/char_map.h"
53	#include "../structures/generic_char_map.h"	53	#include "../structures/generic_char_map.h"
54	#include "../structures/measured_strings.h"	54	#include "../structures/measured_strings.h"
55	#include "../structures/packet/packet.h"	55	#include "../structures/packet/packet.h"
56	#include "../structures/packet/packet_server.h"	56	#include "../structures/packet/packet_server.h"
57		57
58	#include "../il/ip/ip_messages.h"	58	#include "../il/ip/ip_messages.h"
59	#include "../netif/device.h"	59	#include "../netif/device.h"
60		60
61	#if IP_BUNDLE	61	#if IP_BUNDLE
62		62
63	#include "../ip/ip_module.h"	63	#include "../ip/ip_module.h"
64		64
65	#endif	65	#endif
66		66
67	#if TCP_BUNDLE	67	#if TCP_BUNDLE
68		68
69	#include "../tcp/tcp_module.h"	69	#include "../tcp/tcp_module.h"
70		70
71	#endif	71	#endif
72		72
73	#define NAME "Networking"	73	#define NAME "Networking"
74		74
75	#define LO_NAME "lo"	75	#define LO_NAME "lo"
76	#define LO_FILENAME "/sbin/lo"	76	#define LO_FILENAME "/srv/lo"
77	#define DP8390_ISA_NAME "dp8390_isa"	77	#define DP8390_NAME "dp8390"
78	#define DP8390_ISA_FILENAME "/sbin/dp8380_isa"	78	#define DP8390_FILENAME "/srv/dp8380"
79	#define ETHERNET_NAME "ethernet"	79	#define ETHERNET_NAME "ethernet"
80	#define ETHERNET_FILENAME "/sbin/ethernet"	80	#define ETHERNET_FILENAME "/srv/ethernet"
81	#define IP_NAME "ip"	81	#define IP_NAME "ip"
82	#define IP_FILENAME "/sbin/ip"	82	#define IP_FILENAME "/srv/ip"
83		83
84	#define IPC_GET_DEVICE( call ) ( device_id_t ) IPC_GET_ARG1( * call )	84	#define IPC_GET_DEVICE( call ) ( device_id_t ) IPC_GET_ARG1( * call )
85	#define IPC_GET_COUNT( call ) ( int ) IPC_GET_ARG2( * call )	85	#define IPC_GET_COUNT( call ) ( int ) IPC_GET_ARG2( * call )
86		86
87	typedef struct module_struct module_t;	87	typedef struct module_struct module_t;
88	typedef module_t * module_ref;	88	typedef module_t * module_ref;
89		89
90	typedef struct netif netif_t;	90	typedef struct netif netif_t;
91	typedef netif_t * netif_ref;	91	typedef netif_t * netif_ref;
92		92
93	typedef struct networking_globals networking_globals_t;	93	typedef struct networking_globals networking_globals_t;
94		94
95	DEVICE_MAP_DECLARE( netifs, netif_t )	95	DEVICE_MAP_DECLARE( netifs, netif_t )
96		96
97	GENERIC_CHAR_MAP_DECLARE( measured_strings, measured_string_t )	97	GENERIC_CHAR_MAP_DECLARE( measured_strings, measured_string_t )
98		98
99	GENERIC_CHAR_MAP_DECLARE( modules, module_t )	99	GENERIC_CHAR_MAP_DECLARE( modules, module_t )
100		100
101	struct module_struct{	101	struct module_struct{
102	task_id_t task_id;	102	task_id_t task_id;
103	services_t service;	103	services_t service;
104	int phone;	104	int phone;
105	int usage;	105	int usage;
106	const char * name;	106	const char * name;
107	const char * filename;	107	const char * filename;
108	};	108	};
109		109
110	/** A present network interface device.	110	/** A present network interface device.
111	*/	111	*/
112	struct netif{	112	struct netif{
113	/** A system-unique network interface identifier.	113	/** A system-unique network interface identifier.
114	*/	114	*/
115	device_id_t id;	115	device_id_t id;
116	/** A serving network interface driver module index.	116	/** A serving network interface driver module index.
117	*/	117	*/
118	module_ref driver;	118	module_ref driver;
119	/** A serving link layer module index.	119	/** A serving link layer module index.
120	*/	120	*/
121	module_ref nil;	121	module_ref nil;
122	/** A serving internet layer module index.	122	/** A serving internet layer module index.
123	*/	123	*/
124	module_ref il;	124	module_ref il;
125	/** A system-unique network interface name.	125	/** A system-unique network interface name.
126	*/	126	*/
127	char * name;	127	char * name;
128	/** Configuration.	128	/** Configuration.
129	*/	129	*/
130	measured_strings_t configuration;	130	measured_strings_t configuration;
131	};	131	};
132		132
133	/** A networking module global variables.	133	/** A networking module global variables.
134	*/	134	*/
135	struct networking_globals{	135	struct networking_globals{
136	/** Present network interfaces.	136	/** Present network interfaces.
137	*/	137	*/
138	netifs_t netifs;	138	netifs_t netifs;
139	/** Network interface structure indices by names.	139	/** Network interface structure indices by names.
140	*/	140	*/
141	char_map_t netif_names;	141	char_map_t netif_names;
142	/** Available modules.	142	/** Available modules.
143	*/	143	*/
144	modules_t modules;	144	modules_t modules;
145	/** Global configuration.	145	/** Global configuration.
146	*/	146	*/
147	measured_strings_t configuration;	147	measured_strings_t configuration;
148	};	148	};
149		149
150	void networking_print_name( void );	150	void networking_print_name( void );
151	int add_module( module_ref * module, modules_ref modules, const char const * name, const char const * filename, services_t service, task_id_t task_id );	151	int add_module( module_ref * module, modules_ref modules, const char const * name, const char const * filename, services_t service, task_id_t task_id );
152	measured_string_ref configuration_find( measured_strings_ref configuration, const char * name );	152	measured_string_ref configuration_find( measured_strings_ref configuration, const char * name );
153	int networking_start_module( async_client_conn_t client_connection );	153	int networking_start_module( async_client_conn_t client_connection );
154	int networking_initialize( void );	154	int networking_initialize( void );
155	int networking_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );	155	int networking_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
156	int net_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );	156	int net_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
157	//int parse_line( measured_strings_ref configuration, char * line );	157	//int parse_line( measured_strings_ref configuration, char * line );
158	int add_configuration( measured_strings_ref configuration, const char * name, const char * value );	158	int add_configuration( measured_strings_ref configuration, const char * name, const char * value );
159	int read_configuration( void );	159	int read_configuration( void );
160	task_id_t spawn( const char * fname );	160	task_id_t spawn( const char * const fname );
161	int startup( void );	161	int startup( void );
162	device_id_t generate_new_device_id( void );	162	device_id_t generate_new_device_id( void );
163		163
164	static networking_globals_t networking_globals;	164	static networking_globals_t networking_globals;
165		165
166	DEVICE_MAP_IMPLEMENT( netifs, netif_t )	166	DEVICE_MAP_IMPLEMENT( netifs, netif_t )
167		167
168	GENERIC_CHAR_MAP_IMPLEMENT( measured_strings, measured_string_t )	168	GENERIC_CHAR_MAP_IMPLEMENT( measured_strings, measured_string_t )
169		169
170	GENERIC_CHAR_MAP_IMPLEMENT( modules, module_t )	170	GENERIC_CHAR_MAP_IMPLEMENT( modules, module_t )
171		171
172	void networking_print_name( void ){	172	void networking_print_name( void ){
173	printf( NAME );	173	printf( NAME );
174	}	174	}
175		175
176	int add_module( module_ref * module, modules_ref modules, const char * name, const char * filename, services_t service, task_id_t task_id ){	176	int add_module( module_ref * module, modules_ref modules, const char * name, const char * filename, services_t service, task_id_t task_id ){
177	ERROR_DECLARE;	177	ERROR_DECLARE;
178		178
179	module_ref tmp_module;	179	module_ref tmp_module;
180		180
181	tmp_module = ( module_ref ) malloc( sizeof( module_t ));	181	tmp_module = ( module_ref ) malloc( sizeof( module_t ));
182	if( ! tmp_module ) return ENOMEM;	182	if( ! tmp_module ) return ENOMEM;
183	tmp_module->task_id = task_id;	183	tmp_module->task_id = task_id;
184	tmp_module->phone = 0;	184	tmp_module->phone = 0;
185	tmp_module->usage = 0;	185	tmp_module->usage = 0;
186	tmp_module->name = name;	186	tmp_module->name = name;
187	tmp_module->filename = filename;	187	tmp_module->filename = filename;
188	tmp_module->service = service;	188	tmp_module->service = service;
189	if( ERROR_OCCURRED( modules_add( modules, tmp_module->name, 0, tmp_module ))){	189	if( ERROR_OCCURRED( modules_add( modules, tmp_module->name, 0, tmp_module ))){
190	free( tmp_module );	190	free( tmp_module );
191	return ERROR_CODE;	191	return ERROR_CODE;
192	}	192	}
193	if( module ) * module = tmp_module;	193	if( module ) * module = tmp_module;
194	return EOK;	194	return EOK;
195	}	195	}
196		196
197	int networking_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){	197	int networking_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
198	#ifdef NETWORKING_module	198	#ifdef NETWORKING_module
199	//TODO map to *_message	199	//TODO map to *_message
200	if( IS_NET_IL_MESSAGE( call ) \|\| IS_NET_IP_MESSAGE( call )){	200	if( IS_NET_IL_MESSAGE( call ) \|\| IS_NET_IP_MESSAGE( call )){
201	return ip_message( callid, call, answer, answer_count );	201	return ip_message( callid, call, answer, answer_count );
202	/* }else if( IS_NET_ARP_MESSAGE( call )){	202	/* }else if( IS_NET_ARP_MESSAGE( call )){
203	return arp_message( callid, call, answer, answer_count );	203	return arp_message( callid, call, answer, answer_count );
204	// }else if( IS_NET_RARP_MESSAGE( call )){	204	// }else if( IS_NET_RARP_MESSAGE( call )){
205	return rarp_message( callid, call, answer, answer_count );	205	return rarp_message( callid, call, answer, answer_count );
206	// }else if( IS_NET_ICMP_MESSAGE( call )){	206	// }else if( IS_NET_ICMP_MESSAGE( call )){
207	return icmp_message( callid, call, answer, answer_count );	207	return icmp_message( callid, call, answer, answer_count );
208	// }else if( IS_NET_UDP_MESSAGE( call )){	208	// }else if( IS_NET_UDP_MESSAGE( call )){
209	return udp_message( callid, call, answer, answer_count );	209	return udp_message( callid, call, answer, answer_count );
210	*/ }else if( IS_NET_TCP_MESSAGE( call )){	210	*/ }else if( IS_NET_TCP_MESSAGE( call )){
211	return tcp_message( callid, call, answer, answer_count );	211	return tcp_message( callid, call, answer, answer_count );
212	/* }else if( IS_NET_SOCKET_MESSAGE( call )){	212	/* }else if( IS_NET_SOCKET_MESSAGE( call )){
213	return socket_message( callid, call, answer, answer_count );	213	return socket_message( callid, call, answer, answer_count );
214	// }else if( IS_NET_NIL_MESSAGE( call ) \|\| IS_NET_ETHERNET_MESSAGE( call )){	214	// }else if( IS_NET_NIL_MESSAGE( call ) \|\| IS_NET_ETHERNET_MESSAGE( call )){
215	return ethernet_message( callid, call, answer, answer_count );	215	return ethernet_message( callid, call, answer, answer_count );
216	*/ }else{	216	*/ }else{
217	#endif	217	#endif
218	if( IS_NET_PACKET_MESSAGE( call )){	218	if( IS_NET_PACKET_MESSAGE( call )){
219	return packet_server_message( callid, call, answer, answer_count );	219	return packet_server_message( callid, call, answer, answer_count );
220	}else{	220	}else{
221	return net_message( callid, call, answer, answer_count );	221	return net_message( callid, call, answer, answer_count );
222	}	222	}
223	#ifdef NETWORKING_module	223	#ifdef NETWORKING_module
224	}	224	}
225	#endif	225	#endif
226	}	226	}
227		227
228	int networking_start_module( async_client_conn_t client_connection ){	228	int networking_start_module( async_client_conn_t client_connection ){
229	ERROR_DECLARE;	229	ERROR_DECLARE;
230		230
231	ipcarg_t phonehash;	231	ipcarg_t phonehash;
232		232
233	async_set_client_connection( client_connection );	233	async_set_client_connection( client_connection );
234	ERROR_PROPAGATE( pm_init());	234	ERROR_PROPAGATE( pm_init());
235	if( ERROR_OCCURRED( networking_initialize())	235	if( ERROR_OCCURRED( networking_initialize())
236	\|\| ERROR_OCCURRED( REGISTER_ME( SERVICE_NETWORKING, & phonehash ))){	236	\|\| ERROR_OCCURRED( REGISTER_ME( SERVICE_NETWORKING, & phonehash ))){
237	pm_destroy();	237	pm_destroy();
238	return ERROR_CODE;	238	return ERROR_CODE;
239	}	239	}
240		240
241	async_manager();	241	async_manager();
242		242
243	pm_destroy();	243	pm_destroy();
244	return EOK;	244	return EOK;
245	}	245	}
246		246
247	int networking_initialize( void ){	247	int networking_initialize( void ){
248	ERROR_DECLARE;	248	ERROR_DECLARE;
249		249
250	task_id_t task_id;	250	task_id_t task_id;
251		251
252	netifs_initialize( & networking_globals.netifs );	252	netifs_initialize( & networking_globals.netifs );
253	char_map_initialize( & networking_globals.netif_names );	253	char_map_initialize( & networking_globals.netif_names );
254	modules_initialize( & networking_globals.modules );	254	modules_initialize( & networking_globals.modules );
255	measured_strings_initialize( & networking_globals.configuration );	255	measured_strings_initialize( & networking_globals.configuration );
256		256
257	// run self tests	257	// run self tests
258	// ERROR_PROPAGATE( self_test());	258	// ERROR_PROPAGATE( self_test());
259		259
260	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, LO_NAME, LO_FILENAME, SERVICE_LO, 0 ));	260	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, LO_NAME, LO_FILENAME, SERVICE_LO, 0 ));
261	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, DP8390_ISA_NAME, DP8390_ISA_FILENAME, SERVICE_DP8390_ISA, 0 ));	261	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, DP8390_NAME, DP8390_FILENAME, SERVICE_DP8390, 0 ));
262	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, ETHERNET_NAME, ETHERNET_FILENAME, SERVICE_ETHERNET, 0 ));	262	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, ETHERNET_NAME, ETHERNET_FILENAME, SERVICE_ETHERNET, 0 ));
263		263
264	#ifdef NETWORKING_modular	264	#ifdef NETWORKING_modular
265	task_id = spawn( "/sbin/ip" );	265	task_id = spawn( "/srv/ip" );
266	if( ! task_id ) return EINVAL;	266	if( ! task_id ) return EINVAL;
267	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, IP_NAME, IP_FILENAME, SERVICE_IP, task_id ));	267	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, IP_NAME, IP_FILENAME, SERVICE_IP, task_id ));
268	// if( ! spawn( "/sbin/udp" )) return EINVAL;	268	// if( ! spawn( "/srv/udp" )) return EINVAL;
269	if( ! spawn( "/sbin/tcp" )) return EINVAL;	269	if( ! spawn( "/srv/tcp" )) return EINVAL;
270	// if( ! spawn( "/sbin/socket" )) return EINVAL;	270	// if( ! spawn( "/srv/socket" )) return EINVAL;
271	// not always necesssary	271	// not always necesssary
272	// if( ! spawn( "/sbin/arp" )) return EINVAL;	272	// if( ! spawn( "/srv/arp" )) return EINVAL;
273	// if( ! spawn( "/sbin/rarp" )) return EINVAL;	273	// if( ! spawn( "/srv/rarp" )) return EINVAL;
274	// if( ! spawn( "/sbin/icmp" )) return EINVAL;	274	// if( ! spawn( "/srv/icmp" )) return EINVAL;
275		275
276	#else	276	#else
277	#ifdef NETWORKING_module	277	#ifdef NETWORKING_module
278	ipcarg_t phonehash;	278	ipcarg_t phonehash;
279		279
280	ERROR_PROPAGATE( REGISTER_ME( SERVICE_IP, & phonehash ));	280	ERROR_PROPAGATE( REGISTER_ME( SERVICE_IP, & phonehash ));
281	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, IP_NAME, IP_FILENAME, SERVICE_IP, task_get_id()));	281	ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, IP_NAME, IP_FILENAME, SERVICE_IP, task_get_id()));
282	ERROR_PROPAGATE( ip_initialize());	282	ERROR_PROPAGATE( ip_initialize());
283	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_ARP, & phonehash ));	283	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_ARP, & phonehash ));
284	// ERROR_PROPAGATE( arp_initialize());	284	// ERROR_PROPAGATE( arp_initialize());
285	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_RARP, & phonehash ));	285	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_RARP, & phonehash ));
286	// ERROR_PROPAGATE( rarp_initialize());	286	// ERROR_PROPAGATE( rarp_initialize());
287	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_ICMP, & phonehash ));	287	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_ICMP, & phonehash ));
288	// ERROR_PROPAGATE( icmp_initialize());	288	// ERROR_PROPAGATE( icmp_initialize());
289	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_UDP, & phonehash ));	289	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_UDP, & phonehash ));
290	// ERROR_PROPAGATE( udp_initialize());	290	// ERROR_PROPAGATE( udp_initialize());
291	ERROR_PROPAGATE( REGISTER_ME( SERVICE_TCP, & phonehash ));	291	ERROR_PROPAGATE( REGISTER_ME( SERVICE_TCP, & phonehash ));
292	ERROR_PROPAGATE( tcp_initialize());	292	ERROR_PROPAGATE( tcp_initialize());
293	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_SOCKET, & phonehash ));	293	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_SOCKET, & phonehash ));
294	// ERROR_PROPAGATE( socket_initialize());	294	// ERROR_PROPAGATE( socket_initialize());
295	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_ETHERNET, & phonehash ));	295	// ERROR_PROPAGATE( REGISTER_ME( SERVICE_ETHERNET, & phonehash ));
296	// ERROR_PROPAGATE( ethernet_initialize());	296	// ERROR_PROPAGATE( ethernet_initialize());
297	#endif	297	#endif
298	#endif	298	#endif
299		299
300	return EOK;	300	return EOK;
301	}	301	}
302		302
303	//TODO as ip.c	303	//TODO as ip.c
304	int net_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){	304	int net_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
305	ERROR_DECLARE;	305	ERROR_DECLARE;
306		306
307	measured_string_ref strings;	307	measured_string_ref strings;
308	char * data;	308	char * data;
309	int index;	309	int index;
310	measured_string_ref setting;	310	measured_string_ref setting;
311	measured_strings_ref configuration;	311	measured_strings_ref configuration;
312	netif_ref netif;	312	netif_ref netif;
313		313
314	* answer_count = 0;	314	* answer_count = 0;
315	switch( IPC_GET_METHOD( * call )){	315	switch( IPC_GET_METHOD( * call )){
316	case IPC_M_PHONE_HUNGUP:	316	case IPC_M_PHONE_HUNGUP:
317	return EOK;	317	return EOK;
318	case NET_NET_DEVICE:	318	case NET_NET_DEVICE:
319	// TODO configure, register	319	// TODO configure, register
320	printf( "\nNetworking: new netif %d", IPC_GET_DEVICE( call ));	320	printf( "\nNetworking: new netif %d", IPC_GET_DEVICE( call ));
321	return EOK;	321	return EOK;
322	case NET_NET_GET_DEVICE_CONF:	322	case NET_NET_GET_DEVICE_CONF:
323	ERROR_PROPAGATE( measured_strings_receive( & strings, & data, IPC_GET_COUNT( call )));	323	ERROR_PROPAGATE( measured_strings_receive( & strings, & data, IPC_GET_COUNT( call )));
324	netif = netifs_find( & networking_globals.netifs, IPC_GET_DEVICE( call ));	324	netif = netifs_find( & networking_globals.netifs, IPC_GET_DEVICE( call ));
325	if( netif ){	325	if( netif ){
326	configuration = & netif->configuration;	326	configuration = & netif->configuration;
327	}else{	327	}else{
328	configuration = NULL;	328	configuration = NULL;
329	}	329	}
330	for( index = 0; index < IPC_GET_COUNT( call ); ++ index ){	330	for( index = 0; index < IPC_GET_COUNT( call ); ++ index ){
331	setting = measured_strings_find( configuration, strings[ index ].value, 0 );	331	setting = measured_strings_find( configuration, strings[ index ].value, 0 );
332	if( ! setting ){	332	if( ! setting ){
333	setting = measured_strings_find( & networking_globals.configuration, strings[ index ].value, 0 );	333	setting = measured_strings_find( & networking_globals.configuration, strings[ index ].value, 0 );
334	}	334	}
335	if( setting ){	335	if( setting ){
336	strings[ index ].length = setting->length;	336	strings[ index ].length = setting->length;
337	strings[ index ].value = setting->value;	337	strings[ index ].value = setting->value;
338	}else{	338	}else{
339	strings[ index ].length = 0;	339	strings[ index ].length = 0;
340	strings[ index ].value = NULL;	340	strings[ index ].value = NULL;
341	}	341	}
342	}	342	}
343	// strings should not contain received data anymore	343	// strings should not contain received data anymore
344	free( data );	344	free( data );
345	ERROR_CODE = measured_strings_reply( strings, IPC_GET_COUNT( call ));	345	ERROR_CODE = measured_strings_reply( strings, IPC_GET_COUNT( call ));
346	free( strings );	346	free( strings );
347	return ERROR_CODE;	347	return ERROR_CODE;
348	case NET_NET_GET_CONF:	348	case NET_NET_GET_CONF:
349	// arg1 = count	349	// arg1 = count
350	ERROR_PROPAGATE( measured_strings_receive( & strings, & data, IPC_GET_COUNT( call )));	350	ERROR_PROPAGATE( measured_strings_receive( & strings, & data, IPC_GET_COUNT( call )));
351	for( index = 0; index < IPC_GET_COUNT( call ); ++ index ){	351	for( index = 0; index < IPC_GET_COUNT( call ); ++ index ){
352	setting = measured_strings_find( & networking_globals.configuration, strings[ index ].value, 0 );	352	setting = measured_strings_find( & networking_globals.configuration, strings[ index ].value, 0 );
353	if( setting ){	353	if( setting ){
354	strings[ index ].length = setting->length;	354	strings[ index ].length = setting->length;
355	strings[ index ].value = setting->value;	355	strings[ index ].value = setting->value;
356	}else{	356	}else{
357	strings[ index ].length = 0;	357	strings[ index ].length = 0;
358	strings[ index ].value = NULL;	358	strings[ index ].value = NULL;
359	}	359	}
360	}	360	}
361	// strings should not contain received data anymore	361	// strings should not contain received data anymore
362	free( data );	362	free( data );
363	ERROR_CODE = measured_strings_reply( strings, IPC_GET_COUNT( call ));	363	ERROR_CODE = measured_strings_reply( strings, IPC_GET_COUNT( call ));
364	free( strings );	364	free( strings );
365	return ERROR_CODE;	365	return ERROR_CODE;
366	case NET_NET_STARTUP:	366	case NET_NET_STARTUP:
367	return startup();	367	return startup();
368	}	368	}
369	return ENOTSUP;	369	return ENOTSUP;
370	}	370	}
371		371
372	/*	372	/*
373	int parse_line( measured_strings_ref configuration, char * line ){	373	int parse_line( measured_strings_ref configuration, char * line ){
374	ERROR_DECLARE;	374	ERROR_DECLARE;
375		375
376	measured_string_ref setting;	376	measured_string_ref setting;
377	char * name;	377	char * name;
378	char * value;	378	char * value;
379		379
380	// from the beginning	380	// from the beginning
381	name = line;	381	name = line;
382	// skip spaces	382	// skip spaces
383	while( isspace( * name )) ++ name;	383	while( isspace( * name )) ++ name;
384	// remember the name start	384	// remember the name start
385	value = name;	385	value = name;
386	// skip the name	386	// skip the name
387	while( isalnum( * value ) \|\| ( * value == '_' )){	387	while( isalnum( * value ) \|\| ( * value == '_' )){
388	// make uppercase	388	// make uppercase
389	// * value = toupper( * value );	389	// * value = toupper( * value );
390	++ value;	390	++ value;
391	}	391	}
392	if( * value == '=' ){	392	if( * value == '=' ){
393	// terminate the name	393	// terminate the name
394	* value = '\0';	394	* value = '\0';
395	}else{	395	}else{
396	// terminate the name	396	// terminate the name
397	* value = '\0';	397	* value = '\0';
398	// skip until '='	398	// skip until '='
399	++ value;	399	++ value;
400	while(( * value ) && ( * value != '=' )) ++ value;	400	while(( * value ) && ( * value != '=' )) ++ value;
401	// not found?	401	// not found?
402	if( * value != '=' ) return EINVAL;	402	if( * value != '=' ) return EINVAL;
403	}	403	}
404	++ value;	404	++ value;
405	// skip spaces	405	// skip spaces
406	while( isspace( * value )) ++ value;	406	while( isspace( * value )) ++ value;
407	// create a bulk measured string till the end	407	// create a bulk measured string till the end
408	setting = measured_string_create_bulk( value, -1 );	408	setting = measured_string_create_bulk( value, -1 );
409	if( ! setting ) return ENOMEM;	409	if( ! setting ) return ENOMEM;
410	// add the configuration setting	410	// add the configuration setting
411	if( ERROR_OCCURRED( measured_strings_add( configuration, name, 0, setting ))){	411	if( ERROR_OCCURRED( measured_strings_add( configuration, name, 0, setting ))){
412	free( setting );	412	free( setting );
413	return ERROR_CODE;	413	return ERROR_CODE;
414	}	414	}
415	return EOK;	415	return EOK;
416	}	416	}
417	*/	417	*/
418		418
419	int add_configuration( measured_strings_ref configuration, const char * name, const char * value ){	419	int add_configuration( measured_strings_ref configuration, const char * name, const char * value ){
420	ERROR_DECLARE;	420	ERROR_DECLARE;
421		421
422	measured_string_ref setting;	422	measured_string_ref setting;
423		423
424	setting = measured_string_create_bulk( value, 0 );	424	setting = measured_string_create_bulk( value, 0 );
425	if( ! setting ) return ENOMEM;	425	if( ! setting ) return ENOMEM;
426	// add the configuration setting	426	// add the configuration setting
427	if( ERROR_OCCURRED( measured_strings_add( configuration, name, 0, setting ))){	427	if( ERROR_OCCURRED( measured_strings_add( configuration, name, 0, setting ))){
428	free( setting );	428	free( setting );
429	return ERROR_CODE;	429	return ERROR_CODE;
430	}	430	}
431	return EOK;	431	return EOK;
432	}	432	}
433		433
434	device_id_t generate_new_device_id( void ){	434	device_id_t generate_new_device_id( void ){
435	return netifs_count( & networking_globals.netifs ) + 1;	435	return netifs_count( & networking_globals.netifs ) + 1;
436	}	436	}
437		437
438	int read_configuration( void ){	438	int read_configuration( void ){
439	ERROR_DECLARE;	439	ERROR_DECLARE;
440		440
441	netif_ref netif;	441	netif_ref netif;
442	measured_string_ref setting;	442	measured_string_ref setting;
443	services_t internet_service;	443	services_t internet_service;
444	int index;	444	int index;
445		445
446	// read general configuration	446	// read general configuration
447	ERROR_PROPAGATE( add_configuration( & networking_globals.configuration, "IPV", "4" ));	447	ERROR_PROPAGATE( add_configuration( & networking_globals.configuration, "IPV", "4" ));
448		448
449	// read network interfaces configuration	449	// read network interfaces configuration
450		450
451	// static loopback initialization	451	// static loopback initialization
452	// printf( "\nloopback initialization" );	452	// printf( "\nloopback initialization" );
453	netif = ( netif_ref ) malloc( sizeof( netif_t ));	453	netif = ( netif_ref ) malloc( sizeof( netif_t ));
454	if( ! netif ) return ENOMEM;	454	if( ! netif ) return ENOMEM;
455	netif->id = generate_new_device_id();	455	netif->id = generate_new_device_id();
456	ERROR_PROPAGATE( measured_strings_initialize( & netif->configuration ));	456	ERROR_PROPAGATE( measured_strings_initialize( & netif->configuration ));
457	if( ERROR_OCCURRED( add_configuration( & netif->configuration, "NAME", LO_NAME ))	457	if( ERROR_OCCURRED( add_configuration( & netif->configuration, "NAME", LO_NAME ))
458	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "NETIF", LO_NAME ))	458	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "NETIF", LO_NAME ))
459	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "IL", IP_NAME ))	459	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "IL", IP_NAME ))
460	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "MTU", "1500" ))	460	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "MTU", "1500" ))
461	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "IP_CONFIG", "STATIC" ))	461	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "IP_CONFIG", "STATIC" ))
462	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "IP_ADDR", "127.0.0.1" ))	462	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "IP_ADDR", "127.0.0.1" ))
463	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "NETMASK", "255.0.0.0" ))){	463	\|\| ERROR_OCCURRED( add_configuration( & netif->configuration, "NETMASK", "255.0.0.0" ))){
464	measured_strings_destroy( & netif->configuration );	464	measured_strings_destroy( & netif->configuration );
465	free( netif );	465	free( netif );
466	return ERROR_CODE;	466	return ERROR_CODE;
467	}	467	}
468	// mandatory name	468	// mandatory name
469	// printf( "\n\tname" );	469	// printf( "\n\tname" );
470	setting = measured_strings_find( & netif->configuration, "NAME", 0 );	470	setting = measured_strings_find( & netif->configuration, "NAME", 0 );
471	if( ! setting ){	471	if( ! setting ){
472	measured_strings_destroy( & netif->configuration );	472	measured_strings_destroy( & netif->configuration );
473	free( netif );	473	free( netif );
474	return EINVAL;	474	return EINVAL;
475	}	475	}
476	netif->name = setting->value;	476	netif->name = setting->value;
477	// printf( " %s OK", netif->name );	477	// printf( " %s OK", netif->name );
478	// mandatory netif	478	// mandatory netif
479	// printf( "\n\tnetif" );	479	// printf( "\n\tnetif" );
480	setting = measured_strings_find( & netif->configuration, "NETIF", 0 );	480	setting = measured_strings_find( & netif->configuration, "NETIF", 0 );
481	if( ! setting ){	481	if( ! setting ){
482	// printf( " unknown" );	482	// printf( " unknown" );
483	measured_strings_destroy( & netif->configuration );	483	measured_strings_destroy( & netif->configuration );
484	free( netif );	484	free( netif );
485	return EINVAL;	485	return EINVAL;
486	}	486	}
487	// printf( " find %s in %d?", setting->value, modules_count( & networking_globals.modules ));	487	// printf( " find %s in %d?", setting->value, modules_count( & networking_globals.modules ));
488	netif->driver = modules_find( & networking_globals.modules, setting->value, 0 );	488	netif->driver = modules_find( & networking_globals.modules, setting->value, 0 );
489	if( ! netif->driver ){	489	if( ! netif->driver ){
490	// printf( " not found" );	490	// printf( " not found" );
491	// TODO register the unknown one	491	// TODO register the unknown one
492	measured_strings_destroy( & netif->configuration );	492	measured_strings_destroy( & netif->configuration );
493	free( netif );	493	free( netif );
494	return EINVAL;	494	return EINVAL;
495	}	495	}
496	// printf( " found" );	496	// printf( " found" );
497	if( ! netif->driver->task_id ){	497	if( ! netif->driver->task_id ){
498	netif->driver->task_id = spawn( netif->driver->filename );	498	netif->driver->task_id = spawn( netif->driver->filename );
499	if( ! netif->driver->task_id ){	499	if( ! netif->driver->task_id ){
500	measured_strings_destroy( & netif->configuration );	500	measured_strings_destroy( & netif->configuration );

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