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  1. /*
  2.  * Copyright (c) 2009 Lukas Mejdrech
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  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
  15.  *   derived from this software without specific prior written permission.
  16.  *
  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
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  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
  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
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup net
  30.  *  @{
  31.  */
  32.  
  33. /** @file
  34.  */
  35.  
  36. #include <async.h>
  37. #include <ctype.h>
  38. #include <ddi.h>
  39. #include <errno.h>
  40. #include <malloc.h>
  41. #include <stdio.h>
  42.  
  43. #include <ipc/ipc.h>
  44. #include <ipc/services.h>
  45.  
  46. #include "../err.h"
  47. #include "../messages.h"
  48. #include "../modules.h"
  49. //#include "../self_test.h"
  50.  
  51. #include "../structures/char_map.h"
  52. #include "../structures/generic_char_map.h"
  53. #include "../structures/measured_strings.h"
  54. #include "../structures/module_map.h"
  55. #include "../structures/packet/packet.h"
  56. #include "../structures/packet/packet_server.h"
  57.  
  58. #include "../il/ip/ip_messages.h"
  59. #include "../netif/device.h"
  60.  
  61. #if IP_BUNDLE
  62.  
  63.     #include "../ip/ip_module.h"
  64.  
  65. #endif
  66.  
  67. #if TCP_BUNDLE
  68.  
  69.     #include "../tcp/tcp_module.h"
  70.  
  71. #endif
  72.  
  73. #define NAME    "Networking"
  74.  
  75. #define LO_NAME             "lo"
  76. #define LO_FILENAME         "/srv/lo"
  77. #define DP8390_NAME         "dp8390"
  78. #define DP8390_FILENAME     "/srv/dp8390"
  79. #define ETHERNET_NAME       "ethernet"
  80. #define ETHERNET_FILENAME   "/srv/eth"
  81. #define IP_NAME             "ip"
  82. #define IP_FILENAME         "/srv/ip"
  83.  
  84. #define CONF_NAME           "NAME"
  85. #define CONF_NETIF          "NETIF"
  86. #define CONF_NIL            "NIL"
  87. #define CONF_IL             "IL"
  88. #define CONF_IRQ            "IRQ"
  89. #define CONF_IO             "IO"
  90. #define CONF_MTU            "MTU"
  91.  
  92. #define IPC_GET_DEVICE( call )  ( device_id_t ) IPC_GET_ARG1( * call )
  93. #define IPC_GET_COUNT( call )   ( int ) IPC_GET_ARG2( * call )
  94.  
  95. typedef struct netif        netif_t;
  96. typedef netif_t *       netif_ref;
  97.  
  98. typedef struct networking_globals   networking_globals_t;
  99.  
  100. DEVICE_MAP_DECLARE( netifs, netif_t )
  101.  
  102. GENERIC_CHAR_MAP_DECLARE( measured_strings, measured_string_t )
  103.  
  104. /** A present network interface device.
  105.  */
  106. struct netif{
  107.     /** A system-unique network interface identifier.
  108.      */
  109.     device_id_t     id;
  110.     /** A serving network interface driver module index.
  111.      */
  112.     module_ref      driver;
  113.     /** A serving link layer module index.
  114.      */
  115.     module_ref      nil;
  116.     /** A serving internet layer module index.
  117.      */
  118.     module_ref      il;
  119.     /** A system-unique network interface name.
  120.      */
  121.     char *          name;
  122.     /** Configuration.
  123.      */
  124.     measured_strings_t  configuration;
  125. };
  126.  
  127. /** A networking module global variables.
  128.  */
  129. struct networking_globals{
  130.     /** Present network interfaces.
  131.      */
  132.     netifs_t        netifs;
  133.     /** Network interface structure indices by names.
  134.      */
  135.     char_map_t      netif_names;
  136.     /** Available modules.
  137.      */
  138.     modules_t       modules;
  139.     /** Global configuration.
  140.      */
  141.     measured_strings_t  configuration;
  142. };
  143.  
  144. void    networking_print_name( void );
  145. measured_string_ref configuration_find( measured_strings_ref configuration, const char * name );
  146. int networking_start_module( async_client_conn_t client_connection );
  147. int     networking_initialize( void );
  148. int networking_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
  149. int net_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
  150. //int       parse_line( measured_strings_ref configuration, char * line );
  151. int     add_configuration( measured_strings_ref configuration, const char * name, const char * value );
  152. int     read_configuration( void );
  153. int     read_netif_configuration( char * name, netif_ref netif );
  154. int     start_device( netif_ref netif );
  155. int     startup( void );
  156. device_id_t generate_new_device_id( void );
  157.  
  158. static networking_globals_t networking_globals;
  159.  
  160. DEVICE_MAP_IMPLEMENT( netifs, netif_t )
  161.  
  162. GENERIC_CHAR_MAP_IMPLEMENT( measured_strings, measured_string_t )
  163.  
  164. void networking_print_name( void ){
  165.     printf( NAME );
  166. }
  167.  
  168. int networking_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
  169. #ifdef NETWORKING_module
  170.         //TODO map to *_message
  171.         if( IS_NET_IL_MESSAGE( call ) || IS_NET_IP_MESSAGE( call )){
  172.             return ip_message( callid, call, answer, answer_count );
  173. /*      }else if( IS_NET_ARP_MESSAGE( call )){
  174.             return arp_message( callid, call, answer, answer_count );
  175. *//*        }else if( IS_NET_RARP_MESSAGE( call )){
  176.             return rarp_message( callid, call, answer, answer_count );
  177. *//*        }else if( IS_NET_ICMP_MESSAGE( call )){
  178.             return icmp_message( callid, call, answer, answer_count );
  179. *//*        }else if( IS_NET_UDP_MESSAGE( call )){
  180.             return udp_message( callid, call, answer, answer_count );
  181. */      }else if( IS_NET_TCP_MESSAGE( call )){
  182.             return tcp_message( callid, call, answer, answer_count );
  183. /*      }else if( IS_NET_SOCKET_MESSAGE( call )){
  184.             return socket_message( callid, call, answer, answer_count );
  185. *//*        }else if( IS_NET_NIL_MESSAGE( call ) || IS_NET_ETHERNET_MESSAGE( call )){
  186.             return ethernet_message( callid, call, answer, answer_count );
  187. */      }else{
  188. #endif
  189.             if( IS_NET_PACKET_MESSAGE( call )){
  190.                 return packet_server_message( callid, call, answer, answer_count );
  191.             }else{
  192.                 return net_message( callid, call, answer, answer_count );
  193.             }
  194. #ifdef NETWORKING_module
  195.         }
  196. #endif
  197. }
  198.  
  199. int networking_start_module( async_client_conn_t client_connection ){
  200.     ERROR_DECLARE;
  201.  
  202.     ipcarg_t    phonehash;
  203.  
  204.     async_set_client_connection( client_connection );
  205.     ERROR_PROPAGATE( pm_init());
  206.     if( ERROR_OCCURRED( networking_initialize())
  207.     || ERROR_OCCURRED( REGISTER_ME( SERVICE_NETWORKING, & phonehash ))){
  208.         pm_destroy();
  209.         return ERROR_CODE;
  210.     }
  211.  
  212.     async_manager();
  213.  
  214.     pm_destroy();
  215.     return EOK;
  216. }
  217.  
  218. int networking_initialize( void ){
  219.     ERROR_DECLARE;
  220.  
  221.     task_id_t   task_id;
  222.  
  223.     netifs_initialize( & networking_globals.netifs );
  224.     char_map_initialize( & networking_globals.netif_names );
  225.     modules_initialize( & networking_globals.modules );
  226.     measured_strings_initialize( & networking_globals.configuration );
  227.  
  228.     // run self tests
  229. //  ERROR_PROPAGATE( self_test());
  230.  
  231.     ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, LO_NAME, LO_FILENAME, SERVICE_LO, 0 ));
  232.     ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, DP8390_NAME, DP8390_FILENAME, SERVICE_DP8390, 0 ));
  233.     ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, ETHERNET_NAME, ETHERNET_FILENAME, SERVICE_ETHERNET, 0 ));
  234.  
  235. #ifdef NETWORKING_modular
  236.     task_id = spawn( "/srv/ip" );
  237.     if( ! task_id ) return EINVAL;
  238.     ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, IP_NAME, IP_FILENAME, SERVICE_IP, task_id ));
  239. //  if( ! spawn( "/srv/udp" )) return EINVAL;
  240. //  if( ! spawn( "/srv/tcp" )) return EINVAL;
  241. //  if( ! spawn( "/srv/socket" )) return EINVAL;
  242. //  not always necesssary
  243. //  if( ! spawn( "/srv/arp" )) return EINVAL;
  244. //  if( ! spawn( "/srv/rarp" )) return EINVAL;
  245. //  if( ! spawn( "/srv/icmp" )) return EINVAL;
  246.  
  247. #else
  248. #ifdef NETWORKING_module
  249.     ipcarg_t    phonehash;
  250.  
  251.     ERROR_PROPAGATE( REGISTER_ME( SERVICE_IP, & phonehash ));
  252.     ERROR_PROPAGATE( add_module( NULL, & networking_globals.modules, IP_NAME, IP_FILENAME, SERVICE_IP, task_get_id()));
  253.     ERROR_PROPAGATE( ip_initialize());
  254. //  ERROR_PROPAGATE( REGISTER_ME( SERVICE_ARP, & phonehash ));
  255. //  ERROR_PROPAGATE( arp_initialize());
  256. //  ERROR_PROPAGATE( REGISTER_ME( SERVICE_RARP, & phonehash ));
  257. //  ERROR_PROPAGATE( rarp_initialize());
  258. //  ERROR_PROPAGATE( REGISTER_ME( SERVICE_ICMP, & phonehash ));
  259. //  ERROR_PROPAGATE( icmp_initialize());
  260. //  ERROR_PROPAGATE( REGISTER_ME( SERVICE_UDP, & phonehash ));
  261. //  ERROR_PROPAGATE( udp_initialize());
  262.     ERROR_PROPAGATE( REGISTER_ME( SERVICE_TCP, & phonehash ));
  263.     ERROR_PROPAGATE( tcp_initialize());
  264. //  ERROR_PROPAGATE( REGISTER_ME( SERVICE_SOCKET, & phonehash ));
  265. //  ERROR_PROPAGATE( socket_initialize());
  266. //  ERROR_PROPAGATE( REGISTER_ME( SERVICE_ETHERNET, & phonehash ));
  267. //  ERROR_PROPAGATE( ethernet_initialize());
  268. #endif
  269. #endif
  270.  
  271.     return EOK;
  272. }
  273.  
  274. //TODO as ip.c
  275. int net_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
  276.     ERROR_DECLARE;
  277.  
  278.     measured_string_ref strings;
  279.     char *          data;
  280.     int         index;
  281.     measured_string_ref setting;
  282.     measured_strings_ref    configuration;
  283.     netif_ref       netif;
  284.  
  285.     * answer_count = 0;
  286.     switch( IPC_GET_METHOD( * call )){
  287.         case IPC_M_PHONE_HUNGUP:
  288.             return EOK;
  289.         case NET_NET_DEVICE:
  290.             // TODO configure, register
  291.             printf( "\nNetworking: new netif %d", IPC_GET_DEVICE( call ));
  292.             return EOK;
  293.         case NET_NET_GET_DEVICE_CONF:
  294.             ERROR_PROPAGATE( measured_strings_receive( & strings, & data, IPC_GET_COUNT( call )));
  295.             netif = netifs_find( & networking_globals.netifs, IPC_GET_DEVICE( call ));
  296.             if( netif ){
  297.                 configuration = & netif->configuration;
  298.             }else{
  299.                 configuration = NULL;
  300.             }
  301.             for( index = 0; index < IPC_GET_COUNT( call ); ++ index ){
  302.                 setting = measured_strings_find( configuration, strings[ index ].value, 0 );
  303.                 if( ! setting ){
  304.                     setting = measured_strings_find( & networking_globals.configuration, strings[ index ].value, 0 );
  305.                 }
  306.                 if( setting ){
  307.                     strings[ index ].length = setting->length;
  308.                     strings[ index ].value = setting->value;
  309.                 }else{
  310.                     strings[ index ].length = 0;
  311.                     strings[ index ].value = NULL;
  312.                 }
  313.             }
  314.             // strings should not contain received data anymore
  315.             free( data );
  316.             ERROR_CODE = measured_strings_reply( strings, IPC_GET_COUNT( call ));
  317.             free( strings );
  318.             return ERROR_CODE;
  319.         case NET_NET_GET_CONF:
  320.             // arg1 = count
  321.             ERROR_PROPAGATE( measured_strings_receive( & strings, & data, IPC_GET_COUNT( call )));
  322.             for( index = 0; index < IPC_GET_COUNT( call ); ++ index ){
  323.                 setting = measured_strings_find( & networking_globals.configuration, strings[ index ].value, 0 );
  324.                 if( setting ){
  325.                     strings[ index ].length = setting->length;
  326.                     strings[ index ].value = setting->value;
  327.                 }else{
  328.                     strings[ index ].length = 0;
  329.                     strings[ index ].value = NULL;
  330.                 }
  331.             }
  332.             // strings should not contain received data anymore
  333.             free( data );
  334.             ERROR_CODE = measured_strings_reply( strings, IPC_GET_COUNT( call ));
  335.             free( strings );
  336.             return ERROR_CODE;
  337.         case NET_NET_STARTUP:
  338.             return startup();
  339.     }
  340.     return ENOTSUP;
  341. }
  342.  
  343. /*
  344. int parse_line( measured_strings_ref configuration, char * line ){
  345.     ERROR_DECLARE;
  346.  
  347.     measured_string_ref setting;
  348.     char *          name;
  349.     char *          value;
  350.  
  351.     // from the beginning
  352.     name = line;
  353.     // skip spaces
  354.     while( isspace( * name )) ++ name;
  355.     // remember the name start
  356.     value = name;
  357.     // skip the name
  358.     while( isalnum( * value ) || ( * value == '_' )){
  359.         // make uppercase
  360. //      * value = toupper( * value );
  361.         ++ value;
  362.     }
  363.     if( * value == '=' ){
  364.         // terminate the name
  365.         * value = '\0';
  366.     }else{
  367.         // terminate the name
  368.         * value = '\0';
  369.         // skip until '='
  370.         ++ value;
  371.         while(( * value ) && ( * value != '=' )) ++ value;
  372.         // not found?
  373.         if( * value != '=' ) return EINVAL;
  374.     }
  375.     ++ value;
  376.     // skip spaces
  377.     while( isspace( * value )) ++ value;
  378.     // create a bulk measured string till the end
  379.     setting = measured_string_create_bulk( value, -1 );
  380.     if( ! setting ) return ENOMEM;
  381.     // add the configuration setting
  382.     if( ERROR_OCCURRED( measured_strings_add( configuration, name, 0, setting ))){
  383.         free( setting );
  384.         return ERROR_CODE;
  385.     }
  386.     return EOK;
  387. }
  388. */
  389.  
  390. int add_configuration( measured_strings_ref configuration, const char * name, const char * value ){
  391.     ERROR_DECLARE;
  392.  
  393.     measured_string_ref setting;
  394.  
  395.     setting = measured_string_create_bulk( value, 0 );
  396.     if( ! setting ) return ENOMEM;
  397.     // add the configuration setting
  398.     if( ERROR_OCCURRED( measured_strings_add( configuration, name, 0, setting ))){
  399.         free( setting );
  400.         return ERROR_CODE;
  401.     }
  402.     return EOK;
  403. }
  404.  
  405. device_id_t generate_new_device_id( void ){
  406.     return device_assign_devno();
  407. }
  408.  
  409. int read_configuration( void ){
  410.     ERROR_DECLARE;
  411.  
  412.     // read general configuration
  413.     ERROR_PROPAGATE( add_configuration( & networking_globals.configuration, "IPV", "4" ));
  414.     ERROR_PROPAGATE( add_configuration( & networking_globals.configuration, "MTU", "1500" ));
  415.     return EOK;
  416. }
  417.  
  418. int read_netif_configuration( char * name, netif_ref netif ){
  419.     ERROR_DECLARE;
  420.  
  421.     if( strncmp( name, "lo", 2 ) == 0 ){
  422.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "NAME", LO_NAME ));
  423.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "NETIF", LO_NAME ));
  424.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "IL", IP_NAME ));
  425.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "IP_CONFIG", "static" ));
  426.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "IP_ADDR", "127.0.0.1" ));
  427.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "NETMASK", "255.0.0.0" ));
  428.     }else if( strncmp( name, "ne2k", 4 ) == 0 ){
  429.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "NAME", "eth0" ));
  430.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "NETIF", DP8390_NAME ));
  431.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "NIL", ETHERNET_NAME ));
  432.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "IL", IP_NAME ));
  433.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "IRQ", "9" ));
  434.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "IO", "300" ));
  435.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "IP_CONFIG", "static" ));
  436.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "IP_ADDR", "10.0.2.5" ));
  437.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "NETMASK", "255.255.255.0" ));
  438.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "BROADCAST", "10.0.2.255" ));
  439.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "GATEWAY", "10.0.2.2" ));
  440.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "DNS1", "10.0.2.2" ));
  441.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "DNS2", "10.0.2.2" ));
  442.         ERROR_PROPAGATE( add_configuration( & netif->configuration, "ARP", "arp" ));
  443.     }
  444.     return EOK;
  445. }
  446.  
  447. int start_device( netif_ref netif ){
  448.     ERROR_DECLARE;
  449.  
  450.     measured_string_ref setting;
  451.     services_t          internet_service;
  452.     int                 irq;
  453.     int                 io;
  454.     int                 mtu;
  455.  
  456.     // mandatory netif
  457.     setting = measured_strings_find( & netif->configuration, CONF_NETIF, 0 );
  458.     netif->driver = get_running_module( & networking_globals.modules, setting->value );
  459.     if( ! netif->driver ){
  460.         printf( "\nFailed to start the network interface driver %s", setting->value );
  461.         return EINVAL;
  462.     }
  463.     // optional network interface layer
  464.     setting = measured_strings_find( & netif->configuration, CONF_NIL, 0 );
  465.     if( setting ){
  466.         netif->nil = get_running_module( & networking_globals.modules, setting->value );
  467.         if( ! netif->nil ){
  468.             printf( "\nFailed to start the network interface layer %s", setting->value );
  469.             return EINVAL;
  470.         }
  471.     }else{
  472.         netif->nil = NULL;
  473.     }
  474.     // mandatory internet layer
  475.     setting = measured_strings_find( & netif->configuration, CONF_IL, 0 );
  476.     netif->il = get_running_module( & networking_globals.modules, setting->value );
  477.     if( ! netif->il ){
  478.         printf( "\nFailed to start the internet layer %s", setting->value );
  479.         return EINVAL;
  480.     }
  481.     // end of the static loopback initialization
  482.     // startup the loopback interface
  483.     setting = measured_strings_find( & netif->configuration, CONF_IRQ, 0 );
  484.     irq = setting ? strtol( setting->value, NULL, 10 ) : 0;
  485.     setting = measured_strings_find( & netif->configuration, CONF_IO, 0 );
  486.     io = setting ? strtol( setting->value, NULL, 16 ) : 0;
  487.     ERROR_PROPAGATE( async_req_3_0( netif->driver->phone, NET_NETIF_PROBE, netif->id, irq, io ));
  488.     if( netif->nil ){
  489.         setting = measured_strings_find( & netif->configuration, CONF_MTU, 0 );
  490.         if( ! setting ){
  491.             setting = measured_strings_find( & networking_globals.configuration, CONF_MTU, 0 );
  492.         }
  493.         mtu = setting ? strtol( setting->value, NULL, 10 ) : 0;
  494.         ERROR_PROPAGATE( async_req_3_0( netif->nil->phone, NET_NIL_DEVICE, netif->id, netif->driver->service, mtu ));
  495.         internet_service = netif->nil->service;
  496.     }else{
  497.         internet_service = netif->driver->service;
  498.     }
  499.     // TODO IL_BUNDLE
  500.     ERROR_PROPAGATE( async_req_2_0( netif->il->phone, NET_IL_DEVICE, netif->id, internet_service ));
  501.     ERROR_PROPAGATE( async_req_1_0( netif->driver->phone, NET_NETIF_START, netif->id ));
  502.     return EOK;
  503. }
  504.  
  505. int startup( void ){
  506.     ERROR_DECLARE;
  507.  
  508.     char *      conf_files[] = { "lo", "ne2k" };
  509.     int         count = sizeof( conf_files ) / sizeof( char * );
  510.     int         index;
  511.     netif_ref   netif;
  512.     int         i;
  513.     measured_string_ref setting;
  514.  
  515.     // TODO dynamic configuration
  516.     ERROR_PROPAGATE( read_configuration());
  517.  
  518.     for( i = 0; i < count; ++ i ){
  519.         netif = ( netif_ref ) malloc( sizeof( netif_t ));
  520.         if( ! netif ) return ENOMEM;
  521.  
  522.         netif->id = generate_new_device_id();
  523.         if( ! netif->id ) return EXDEV;
  524.         ERROR_PROPAGATE( measured_strings_initialize( & netif->configuration ));
  525.         // read configuration files
  526.         if( ERROR_OCCURRED( read_netif_configuration( conf_files[ i ], netif ))){
  527.             measured_strings_destroy( & netif->configuration );
  528.             free( netif );
  529.             return ERROR_CODE;
  530.         }
  531.         // mandatory name
  532.         setting = measured_strings_find( & netif->configuration, CONF_NAME, 0 );
  533.         if( ! setting ){
  534.             printf( "\nThe name is missing" );
  535.             measured_strings_destroy( & netif->configuration );
  536.             free( netif );
  537.             return EINVAL;
  538.         }
  539.         netif->name = setting->value;
  540.         // add to the netifs map
  541.         index = netifs_add( & networking_globals.netifs, netif->id, netif );
  542.         if( index < 0 ){
  543.             measured_strings_destroy( & netif->configuration );
  544.             free( netif );
  545.             return index;
  546.         }
  547.         // add to the netif names map
  548.         if( ERROR_OCCURRED( char_map_add( & networking_globals.netif_names, netif->name, 0, index ))
  549.         // start network interfaces and needed modules
  550.         || ERROR_OCCURRED( start_device( netif ))){
  551.             measured_strings_destroy( & netif->configuration );
  552.             netifs_exclude_index( & networking_globals.netifs, index );
  553.             return ERROR_CODE;
  554.         }
  555.         // increment modules' usage
  556.         ++ netif->driver->usage;
  557.         if( netif->nil ) ++ netif->nil->usage;
  558.         ++ netif->il->usage;
  559.         printf( "\nNew network interface started:\n\tname\t= %s\n\tid\t= %d\n\tdriver\t= %s\n\tnil\t= %s\n\til\t= %s", netif->name, netif->id, netif->driver->name, netif->nil ? netif->nil->name : NULL, netif->il->name );
  560.     }
  561.     return EOK;
  562. }
  563.  
  564. /** @}
  565.  */
  566.