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  1. /*
  2.  * Copyright (c) 2008 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 udp
  30.  *  @{
  31.  */
  32.  
  33. /** @file
  34.  *  UDP standalone module implementation.
  35.  *  Contains skeleton module functions mapping.
  36.  *  The functions are used by the module skeleton as module specific entry points.
  37.  *  @see module.c
  38.  */
  39.  
  40. #include <async.h>
  41. #include <stdio.h>
  42.  
  43. #include <ipc/ipc.h>
  44. #include <ipc/services.h>
  45.  
  46. #include "../../err.h"
  47. #include "../../modules.h"
  48.  
  49. #include "../../structures/packet/packet.h"
  50.  
  51. #include "../../include/net_interface.h"
  52.  
  53. #include "udp.h"
  54. #include "udp_module.h"
  55.  
  56. /** UDP module name.
  57.  */
  58. #define NAME    "UDP protocol"
  59.  
  60. /** Prints the module name.
  61.  *  @see NAME
  62.  */
  63. void    module_print_name( void );
  64.  
  65. /** Starts the UDP module.
  66.  *  Initializes the client connection serving function, initializes the module, registers the module service and starts the async manager, processing IPC messages in an infinite loop.
  67.  *  @param[in] client_connection The client connection processing function. The module skeleton propagates its own one.
  68.  *  @returns EOK on successful module termination.
  69.  *  @returns Other error codes as defined for the udp_initialize() function.
  70.  *  @returns Other error codes as defined for the REGISTER_ME() macro function.
  71.  */
  72. int module_start( async_client_conn_t client_connection );
  73.  
  74. /** Processes the UDP message.
  75.  *  @param[in] callid The message identifier.
  76.  *  @param[in] call The message parameters.
  77.  *  @param[out] answer The message answer parameters.
  78.  *  @param[out] answer_count The last parameter for the actual answer in the answer parameter.
  79.  *  @returns EOK on success.
  80.  *  @returns Other error codes as defined for the udp_message() function.
  81.  */
  82. int module_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
  83.  
  84. /** UDP module global data.
  85.  */
  86. extern udp_globals_t    udp_globals;
  87.  
  88. void module_print_name( void ){
  89.     printf( "%s", NAME );
  90. }
  91.  
  92. int module_start( async_client_conn_t client_connection ){
  93.     ERROR_DECLARE;
  94.  
  95.     ipcarg_t    phonehash;
  96.  
  97.     async_set_client_connection( client_connection );
  98.     udp_globals.net_phone = net_connect_module( SERVICE_NETWORKING );
  99.     if( udp_globals.net_phone < 0 ){
  100.         return udp_globals.net_phone;
  101.     }
  102.     ERROR_PROPAGATE( pm_init());
  103.     if( ERROR_OCCURRED( udp_initialize( client_connection ))
  104.     || ERROR_OCCURRED( REGISTER_ME( SERVICE_UDP, & phonehash ))){
  105.         pm_destroy();
  106.         return ERROR_CODE;
  107.     }
  108.  
  109.     async_manager();
  110.  
  111.     pm_destroy();
  112.     return EOK;
  113. }
  114.  
  115. int module_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
  116.     return udp_message( callid, call, answer, answer_count );
  117. }
  118.  
  119. /** @}
  120.  */
  121.