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/*
* Copyright (c) 2008 Lukas Mejdrech
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
/** @addtogroup icmp
* @{
*/
 
/** @file
* ICMP module.
*/
 
#ifndef __NET_ICMP_H__
#define __NET_ICMP_H__
 
#include <atomic.h>
#include <fibril_sync.h>
 
#include "../../include/icmp_codes.h"
 
#include "../../structures/int_map.h"
#include "../../structures/generic_field.h"
 
#include "icmp_header.h"
 
/** Type definition of the ICMP global data.
* @see icmp_globals
*/
typedef struct icmp_globals icmp_globals_t;
 
/** Timeout locks map.
* Maps message identifiers to timeout implementing atomic variables.
* Sending fibril waits for its associated atomic variable to be set nonzero.
* Receiving fibril sets the associated atomic variable with the return value.
*/
INT_MAP_DECLARE( time_locks, atomic_t );
 
/** Echo specific data field.
* Used for bundle modules.
* The bundle module gets an index to the assigned echo specific data while connecting.
* The index is used in the future semi-remote calls instead of the ICMP phone.
*/
GENERIC_FIELD_DECLARE( echo_data, icmp_echo_t );
 
/** ICMP global data.
*/
struct icmp_globals{
/** IP module phone.
*/
int ip_phone;
/** Reserved packet prefix length.
*/
size_t prefix;
/** Maximal packet content length.
*/
size_t content;
/** Reserved packet suffix length.
*/
size_t suffix;
/** Packet address length.
*/
size_t addr_len;
/** Networking module phone.
*/
int net_phone;
/** The last used identifier number.
*/
icmp_param_t last_used_id;
/** The budled modules assigned echo specific data.
*/
echo_data_t echo_data;
/** Echo timeout locks.
*/
time_locks_t time_locks;
/** Safety lock.
*/
fibril_rwlock_t lock;
};
 
#endif
 
/** @}
*/
 
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