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4271 mejdrech 1 
/*
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 * Copyright (c) 2009 Lukas Mejdrech
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup arp
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 *  @{
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 */
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/** @file
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 *  ARP module interface.
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 *  The same interface is used for standalone remote modules as well as for bundle modules.
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 *  The standalone remote modules have to be compiled with the arp_remote.c source file.
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 *  The bundle modules with the arp.c source file.
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 */
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#ifndef __NET_ARP_INTERFACE_H__
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#define __NET_ARP_INTERFACE_H__
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#include "../structures/measured_strings.h"
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#include "device.h"
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/** Registers the new device and the requesting protocol service.
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 *  Determines the device broadcast address, its address lengths and packet size.
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 *  @param arp_phone The ARP module phone used for (semi)remote calls. Input parameter.
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 *  @param device_id The new device identifier. Input parameter.
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 *  @param protocol The requesting protocol service. Input parameter.
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 *  @param netif The underlying device network interface layer service. Input parameter.
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 *  @param address The local requesting protocol address of the device. Input parameter.
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 *  @returns EOK on success.
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 *  @returns EEXIST if the device is already used.
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 *  @returns ENOMEM if there is not enough memory left.
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 *  @returns ENOENT if the network interface service is not known.
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 *  @returns EREFUSED if the network interface service is not responding.
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 *  @returns Other error codes as defined for the nil_packet_get_size() function.
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 *  @returns Other error codes as defined for the nil_get_addr() function.
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 *  @returns Other error codes as defined for the nil_get_broadcast_addr() function.
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 */
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int arp_device_req( int arp_phone, device_id_t device_id, services_t protocol, services_t netif, measured_string_ref address );
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/** Translates the given protocol address to the network interface address.
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 *  Broadcasts the ARP request if the mapping is not found.
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 *  @param arp_phone The ARP module phone used for (semi)remote calls. Input parameter.
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 *  @param device_id The device identifier. Input parameter.
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 *  @param protocol The requesting protocol service. Input parameter.
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 *  @param address The local requesting protocol address. Input parameter.
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 *  @param translation The translation of the local protocol address. Output parameter.
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 *  @param data The raw translation data container. Output parameter.
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 *  @returns EOK on success.
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 *  @returns EINVAL if the configuration parameter is NULL.
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 *  @returns EINVAL if the count parameter is zero (0).
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 *  @returns EBADMEM if the translation or the data parameters are NULL.
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 *  @returns ENOENT if the mapping is not found.
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 */
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int arp_translate_req( int arp_phone, device_id_t device_id, services_t protocol, measured_string_ref address, measured_string_ref * translation, char ** data );
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/** Clears the device cache.
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 *  @param arp_phone The ARP module phone used for (semi)remote calls. Input parameter.
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 *  @param device_id The device identifier. Input parameter.
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 *  @returns EOK on success.
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 *  @returns ENOENT if the device is not found.
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 */
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int arp_clear_device_req( int arp_phone, device_id_t device_id );
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/** Cleans the cache.
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 *  @param arp_phone The ARP module phone used for (semi)remote calls. Input parameter.
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 *  @returns EOK on success.
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 */
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int arp_clean_cache_req( int arp_phone );
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/** Connects to the ARP module.
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 *  @param service The ARP module service. Ignored parameter.
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 *  @returns The ARP module phone on success.
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 *  @returns 0 if called by the bundle module.
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 */
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int arp_connect_module( services_t service );
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/** Returns the ARP task identifier.
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 *  @returns The current task identifier if called by the bundle module.
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 *  @returns 0 if called by the remote module.
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 */
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int arp_task_get_id( void );
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#endif
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/** @}
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 */