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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 ip
  30.  *  @{
  31.  */
  32.  
  33. /** @file
  34.  */
  35.  
  36. #include <as.h>
  37. #include <async.h>
  38. #include <errno.h>
  39. #include <stdio.h>
  40.  
  41. #include <ipc/ipc.h>
  42. #include <ipc/services.h>
  43.  
  44. #include "../../err.h"
  45. #include "../../messages.h"
  46. #include "../../modules.h"
  47.  
  48. #include "../../include/sockaddr.h"
  49. #include "../../include/socket.h"
  50. #include "../../netif/device.h"
  51. #include "../../structures/measured_strings.h"
  52. #include "../../structures/packet/packet_client.h"
  53.  
  54. #include "ip.h"
  55. #include "ip_messages.h"
  56. #include "ip_module.h"
  57.  
  58. #define DEFAULT_IPV     4
  59.  
  60. #define IPC_GET_DEVICE( call )      ( device_id_t ) IPC_GET_ARG1( * call )
  61. #define IPC_GET_PACKET( call )      ( packet_id_t ) IPC_GET_ARG1( * call )
  62. #define IPC_GET_PROTO( call )       ( int ) IPC_GET_ARG1( * call )
  63. #define IPC_GET_SERVICE( call )     ( services_t ) IPC_GET_ARG2( * call )
  64. #define IPC_GET_STATE( call )       ( device_state_t ) IPC_GET_ARG2( * call )
  65. #define IPC_GET_PHONE( call )       ( int ) IPC_GET_ARG5( * call )
  66.  
  67. ip_globals_t    ip_globals;
  68.  
  69. DEVICE_MAP_IMPLEMENT( ip_netifs, ip_netif_t )
  70.  
  71. INT_MAP_IMPLEMENT( ip_protos, ip_proto_t )
  72.  
  73. int ip_register_message( int protocol, int phone );
  74. int ip_state_message( device_id_t device_id, device_state_t state );
  75. void    ip_driver_receiver( ipc_callid_t iid, ipc_call_t * icall );
  76.  
  77. /** Initializes the module.
  78.  */
  79. int ip_initialize( void ){
  80.     ip_netifs_initialize( & ip_globals.netifs );
  81.     ip_protos_initialize( & ip_globals.protos );
  82.     return EOK;
  83. }
  84.  
  85. int ip_echo_message( ipcarg_t arg1, ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t arg5, ipcarg_t * answer1, ipcarg_t * answer2, ipcarg_t * answer3, ipcarg_t * answer4, ipcarg_t * answer5 ){
  86.     if( answer1 ) * answer1 = arg1;
  87.     if( answer2 ) * answer2 = arg2;
  88.     if( answer3 ) * answer3 = arg3;
  89.     if( answer4 ) * answer4 = arg4;
  90.     if( answer5 ) * answer5 = arg5;
  91.     return EOK;
  92. }
  93.  
  94. int ip_device_message( device_id_t device_id, services_t service ){
  95.     ERROR_DECLARE;
  96.  
  97.     ip_netif_ref        ip_netif;
  98.     aid_t           message;
  99.     ipc_call_t      answer;
  100.     measured_string_t   configuration[ 9 ] = {{ "IPV", 3 }, { "IP_CONFIG", 9 }, { "IP_ADDR", 7 }, { "NETMASK", 7 }, { "GATEWAY", 7 }, { "BROADCAST", 9 }, { "DNS1", 4 }, { "DNS2", 4 }, { "ARP", 3 }};
  101.     int         count = 9;
  102.     measured_string_ref settings;
  103.     char *          data;
  104.  
  105.     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
  109.     // TODO mapping
  110.     message = async_send_2( ip_globals.networking_phone, NET_NET_GET_DEVICE_CONF, ip_netif->device_id, count, & answer );
  111.     // send names and get settings
  112.     if( ERROR_OCCURRED( measured_strings_send( ip_globals.networking_phone, configuration, count ))
  113.     || ERROR_OCCURRED( measured_strings_return( ip_globals.networking_phone, & settings, & data, count ))){
  114.         async_wait_for( message, NULL );
  115.         return ERROR_CODE;
  116.     }
  117.     if( settings ){
  118.         if( settings[ 0 ].value ){
  119.             ip_netif->ipv = strtol( settings[ 0 ].value, NULL, 0 );
  120.         }else{
  121.             ip_netif->ipv = DEFAULT_IPV;
  122.         }
  123.         ip_netif->dhcp = ! strcmp( settings[ 1 ].value, "DHCP" );
  124.         if( ip_netif->dhcp ){
  125.             // TODO dhcp
  126.             free( ip_netif );
  127.             return ENOTSUP;
  128.         }else if( ip_netif->ipv == 4 ){
  129.             if( ERROR_OCCURRED( inet_pton( AF_INET, settings[ 2 ].value, ( uint8_t * ) & ip_netif->address ))
  130.             || ERROR_OCCURRED( inet_pton( AF_INET, settings[ 3 ].value, ( uint8_t * ) & ip_netif->netmask ))
  131.             || ( inet_pton( AF_INET, settings[ 4 ].value, ( uint8_t * ) & ip_netif->gateway ) == EINVAL )
  132.             || ( inet_pton( AF_INET, settings[ 5 ].value, ( uint8_t * ) & ip_netif->broadcast ) == EINVAL )
  133.             || ( inet_pton( AF_INET, settings[ 6 ].value, ( uint8_t * ) & ip_netif->dns1 ) == EINVAL )
  134.             || ( inet_pton( AF_INET, settings[ 7 ].value, ( uint8_t * ) & ip_netif->dns2 ) == EINVAL )){
  135.                 free( ip_netif );
  136.                 return EINVAL;
  137.             }
  138.         }else{
  139.             // TODO ipv6
  140.             free( ip_netif );
  141.             return ENOTSUP;
  142.         }
  143.         // TODO ARP module
  144.     }
  145.     // TODO arp module
  146.     free( settings );
  147.     free( data );
  148.     // end request
  149.     // TODO mapping
  150.     async_wait_for( message, NULL );
  151.     // print the settings
  152.     printf( "\n -IPV =\t%d", ip_netif->ipv );
  153.     printf( "\n -configuration =\t%s", ip_netif->dhcp ? "dhcp" : "static" );
  154.     // TODO ipv6
  155.     data = malloc( INET_ADDRSTRLEN );
  156.     if( data ){
  157.         inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->address, data, INET_ADDRSTRLEN );
  158.         printf( "\n -address =\t%s", data );
  159.         inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->netmask, data, INET_ADDRSTRLEN );
  160.         printf( "\n -netmask =\t%s", data );
  161.         inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->gateway, data, INET_ADDRSTRLEN );
  162.         printf( "\n -gateway =\t%s", data );
  163.         inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->broadcast, data, INET_ADDRSTRLEN );
  164.         printf( "\n -broadcast =\t%s", data );
  165.         inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->dns1, data, INET_ADDRSTRLEN );
  166.         printf( "\n -dns1 =\t%s", data );
  167.         inet_ntop( AF_INET, ( uint8_t * ) & ip_netif->dns2, data, INET_ADDRSTRLEN );
  168.         printf( "\n -dns2 =\t%s", data );
  169.         free( data );
  170.     }
  171.     // TODO mapping
  172.     ip_netif->phone = bind_service( service, ip_netif->device_id, SERVICE_IP, 0, ip_driver_receiver );
  173.     if( ERROR_OCCURRED( ip_netifs_add( & ip_globals.netifs, ip_netif->device_id, ip_netif ))){
  174.         free( ip_netif );
  175.         return ERROR_CODE;
  176.     }
  177.     return EOK;
  178. }
  179.  
  180. void ip_driver_receiver( ipc_callid_t iid, ipc_call_t * icall ){
  181.     ERROR_DECLARE;
  182.  
  183.     ipc_callid_t    callid;
  184.     ipc_call_t  call;
  185. //  ipc_call_t  answer;
  186. //  int     count;
  187.     int     result;
  188.     packet_t    packet;
  189.  
  190.     /*
  191.      * Accept the connection
  192.      *  - Answer the first IPC_M_CONNECT_ME_TO call.
  193.      */
  194.     ipc_answer_0( iid, EOK );
  195.  
  196.     while( true ){
  197. /*      // refresh data
  198.         count = 0;
  199.         IPC_SET_RETVAL( answer, 0 );
  200.         // just to be precize
  201.         IPC_SET_RETVAL( answer, 0 );
  202.         IPC_SET_ARG1( answer, 0 );
  203.         IPC_SET_ARG2( answer, 0 );
  204.         IPC_SET_ARG3( answer, 0 );
  205.         IPC_SET_ARG4( answer, 0 );
  206.         IPC_SET_ARG5( answer, 0 );
  207. */
  208.         callid = async_get_call( & call );
  209.         switch( IPC_GET_METHOD( call )){
  210.             case NET_IL_DEVICE_STATE:
  211.             case NET_NIL_DEVICE_STATE:
  212.                 result = ip_state_message( IPC_GET_DEVICE( & call ), IPC_GET_STATE( & call ));
  213.                 ipc_answer_0( callid, result );
  214.             // TODO packer received
  215.             case NET_IL_RECEIVED:
  216.             case NET_NIL_RECEIVED:
  217.                 if( ! ERROR_OCCURRED( result = packet_translate( ip_globals.networking_phone, & packet, IPC_GET_PACKET( & call )))){
  218.                     //result = ip_receive_message( IPC_GET_DEVICE( call ), packet );
  219.                 }
  220.                 ipc_answer_0( callid, result );
  221.         }
  222.     }
  223. }
  224.  
  225. int ip_state_message( device_id_t device_id, device_state_t state ){
  226.     // TODO state
  227.     printf( "\nip - device %d changed state to %d\n", device_id, state );
  228.     return EOK;
  229. }
  230.  
  231. int ip_register_message( int protocol, int phone ){
  232.     ERROR_DECLARE;
  233.  
  234.     ip_proto_ref    proto;
  235.  
  236.     proto = ( ip_proto_ref ) malloc( sizeof( ip_protos_t ));
  237.     if( ! proto ) return ENOMEM;
  238.     proto->protocol = protocol;
  239.     proto->phone = phone;
  240.     if( ERROR_OCCURRED( ip_protos_add( & ip_globals.protos, proto->protocol, proto ))){
  241.         free( proto );
  242.         return ERROR_CODE;
  243.     }
  244.     return EOK;
  245. }
  246.  
  247. int ip_send_message( device_id_t device_id, packet_t packet ){
  248.     // TODO send packet
  249.     printf( "Packet to send via %d: %s", device_id, packet_get_data( packet ));
  250.     packet_release( ip_globals.networking_phone, packet_get_id( packet ));
  251.     return EOK;
  252. }
  253.  
  254. int ip_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
  255.     ERROR_DECLARE;
  256.  
  257.     packet_t    packet;
  258.  
  259.     * answer_count = 0;
  260.     switch( IPC_GET_METHOD( * call )){
  261.         case IPC_M_PHONE_HUNGUP:
  262.             return EOK;
  263.         case NET_IP_ECHO:
  264.             * answer_count = 5;
  265.             return ip_echo_message( IPC_GET_ARG1( * call ), IPC_GET_ARG2( * call ), IPC_GET_ARG3( * call ), IPC_GET_ARG4( * call ), IPC_GET_ARG5( * call ), & IPC_GET_ARG1( * answer ), & IPC_GET_ARG2( * answer ), & IPC_GET_ARG3( * answer ), & IPC_GET_ARG4( * answer ), & IPC_GET_ARG5( * answer ) );
  266.         case NET_IL_DEVICE:
  267.             return ip_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ));
  268.         case IPC_M_CONNECT_TO_ME:
  269.             return ip_register_message( IPC_GET_PROTO( call ), IPC_GET_PHONE( call ));
  270.         case NET_IP_SEND:
  271.             if( ERROR_OCCURRED( packet_translate( ip_globals.networking_phone, & packet, IPC_GET_PACKET( call )))){
  272.                 printf( "\nIP send E %d", ERROR_CODE );
  273.                 return ERROR_CODE;
  274.             }
  275.             return ip_send_message( IPC_GET_DEVICE( call ), packet );
  276.     }
  277.     return ENOTSUP;
  278. }
  279.  
  280. /** @}
  281.  */
  282.