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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 netif
  30.  *  @{
  31.  */
  32.  
  33. /** @file
  34.  */
  35.  
  36. #include <async.h>
  37. #include <mem.h>
  38. #include <stdio.h>
  39.  
  40. #include <ipc/ipc.h>
  41. #include <ipc/services.h>
  42. //#include <sys/mman.h>
  43.  
  44. #include "../err.h"
  45. #include "../messages.h"
  46. #include "../modules.h"
  47.  
  48. #include "../structures/packet/packet.h"
  49. #include "../structures/packet/packet_client.h"
  50. #include "../structures/measured_strings.h"
  51.  
  52. #include "device.h"
  53. #include "netif.h"
  54.  
  55. #define IPC_GET_DEVICE( call )      ( device_id_t ) IPC_GET_ARG1( * call )
  56. #define IPC_GET_PACKET( call )      ( packet_id_t ) IPC_GET_ARG2( * call )
  57. #define IPC_GET_IRQ( call )     ( int ) IPC_GET_ARG2( * call )
  58. #define IPC_GET_IO( call )      ( int ) IPC_GET_ARG3( * call )
  59. #define IPC_GET_PHONE( call )       ( int ) IPC_GET_ARG5( * call )
  60.  
  61. extern netif_globals_t netif_globals;
  62.  
  63. extern int  initialize( void );
  64. extern int  probe_auto_message( void );
  65. extern int  probe_message( device_id_t device_id, int irq, int io );
  66. extern int  send_message( device_id_t device_id, packet_t packet );
  67. extern int  start_message( device_id_t device_id );
  68. extern int  stop_message( device_id_t device_id );
  69. extern measured_string_ref  get_addr_message( device_id_t device_id );
  70.  
  71. DEVICE_MAP_IMPLEMENT( device_map, device_t )
  72.  
  73. int module_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
  74. int netif_start_module( async_client_conn_t client_connection );
  75. int register_message( device_id_t device_id, int phone );
  76. int get_device_stats( device_id_t device_id, device_stats_ref * stats );
  77.  
  78.  
  79. int find_device( device_id_t device_id, device_ref * device ){
  80.     if( ! device ) return EBADMEM;
  81.     * device = device_map_find( & netif_globals.device_map, device_id );
  82.     if( ! * device ) return ENOENT;
  83.     if(( ** device ).state == NETIF_NULL ) return EPERM;
  84.     return EOK;
  85. }
  86.  
  87. int get_device_stats( device_id_t device_id, device_stats_ref * stats ){
  88.     ERROR_DECLARE;
  89.  
  90.     device_ref  device;
  91.  
  92.     if( ! stats ) return EBADMEM;
  93.     ERROR_PROPAGATE( find_device( device_id, & device ));
  94.     * stats = & device->stats;
  95.     return EOK;
  96. }
  97.  
  98. void null_device_stats( device_stats_ref stats ){
  99.     bzero( stats, sizeof( device_stats_t ));
  100. }
  101.  
  102. int register_message( device_id_t device_id, int phone ){
  103.     ERROR_DECLARE;
  104.  
  105.     device_ref  device;
  106.  
  107.     ERROR_PROPAGATE( find_device( device_id, & device ));
  108.     if( device->nil_phone > 0 ) return ELIMIT;
  109.     device->nil_phone = phone;
  110.     printf( "\nNew receiver of the device %d registered:\n\tphone\t= %d", device->device_id, device->nil_phone );
  111.     return EOK;
  112. }
  113.  
  114. int netif_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
  115.     ERROR_DECLARE;
  116.  
  117.     size_t              length;
  118.     device_stats_ref    stats;
  119.     packet_t            packet;
  120.     measured_string_ref address;
  121.  
  122. //  printf( "\nNETIF message %d", method );
  123.     * answer_count = 0;
  124.     switch( IPC_GET_METHOD( * call )){
  125.         case IPC_M_PHONE_HUNGUP:
  126.             return EOK;
  127.         case NET_NETIF_PROBE_AUTO:
  128.             return probe_auto_message();
  129.         case NET_NETIF_PROBE:
  130.             return probe_message( IPC_GET_DEVICE( call ), IPC_GET_IRQ( call ), IPC_GET_IO( call ));
  131.         case IPC_M_CONNECT_TO_ME:
  132.             return register_message( IPC_GET_DEVICE( call ), IPC_GET_PHONE( call ));
  133.         case NET_NETIF_SEND:
  134.             ERROR_PROPAGATE( packet_translate( netif_globals.networking_phone, & packet, IPC_GET_PACKET( call )));
  135.             return send_message( IPC_GET_DEVICE( call ), packet );
  136.         case NET_NETIF_START:
  137.             return start_message( IPC_GET_DEVICE( call ));
  138.         case NET_NETIF_STATS:
  139.             ERROR_PROPAGATE( ipc_data_read_receive( & callid, & length ));
  140.             if( length < sizeof( device_stats_t )) return EOVERFLOW;
  141.             ERROR_PROPAGATE( get_device_stats( IPC_GET_DEVICE( call ), & stats ));
  142.             return ipc_data_read_finalize( callid, stats, sizeof( device_stats_t ));
  143.         case NET_NETIF_STOP:
  144.             return stop_message( IPC_GET_DEVICE( call ));
  145.         case NET_NETIF_GET_ADDR:
  146.             address = get_addr_message( IPC_GET_DEVICE( call ));
  147.             return address ? measured_strings_reply( address, 1 ) : ENOENT;
  148.     }
  149.     return ENOTSUP;
  150. }
  151.  
  152. int netif_start_module( async_client_conn_t client_connection ){
  153.     ERROR_DECLARE;
  154.  
  155.     async_set_client_connection( client_connection );
  156.     netif_globals.networking_phone = connect_to_service( SERVICE_NETWORKING );
  157.     device_map_initialize( & netif_globals.device_map );
  158.     ERROR_PROPAGATE( pm_init());
  159.     if( ERROR_OCCURRED( initialize())){
  160.         pm_destroy();
  161.         return ERROR_CODE;
  162.     }
  163.  
  164.     async_manager();
  165.  
  166.     pm_destroy();
  167.     return EOK;
  168. }
  169.  
  170. /** @}
  171.  */
  172.