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* Copyright (c) 2009 Lukas Mejdrech
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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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* - 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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* 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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/** @addtogroup libnet
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* ICMP header definition.
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* Based on the RFC 792.
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#ifndef LIBNET_ICMP_HEADER_H_
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#define LIBNET_ICMP_HEADER_H_
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#include <sys/types.h>
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#include <net/icmp_codes.h>
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/** ICMP header size in bytes. */
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#define ICMP_HEADER_SIZE sizeof(icmp_header_t)
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/** Echo specific data. */
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typedef struct icmp_echo {
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/** Message idintifier. */
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icmp_param_t identifier;
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/** Message sequence number. */
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icmp_param_t sequence_number;
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} __attribute__((packed)) icmp_echo_t;
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/** Internet control message header. */
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typedef struct icmp_header {
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/** The type of the message. */
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* The error code for the datagram reported by the ICMP message.
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* The interpretation is dependent on the message type.
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* The checksum is the 16-bit ones's complement of the one's complement
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* sum of the ICMP message starting with the ICMP Type. For computing
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* the checksum, the checksum field should be zero. If the checksum does
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* not match the contents, the datagram is discarded.
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/** Message specific data. */
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/** Echo specific data. */
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/** Proposed gateway value. */
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/** Fragmentation needed specific data. */
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/** Reserved field. Must be zero. */
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icmp_param_t reserved;
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/** Parameter problem specific data. */
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/** Problem pointer. */
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/** Reserved field. Must be zero. */
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icmp_param_t reserved;
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} __attribute__((packed)) icmp_header_t;
added
removed
uspace/lib/net/include/icmp_header.h
