ip_numbers.h

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/*
 * Copyright 2012,2013,2014 Didier Barvaux
 * Copyright 2013 Viveris Technologies
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

/**
 * @file   ip_numbers.h
 * @brief  Defines the IPv4 protocol numbers
 * @author Free Software Foundation, Inc
 * @author Didier Barvaux <didier@barvaux.org>
 *
 * This file contains some parts from the GNU C library. It is copied here to
 * be portable on all platforms, even the platforms that miss the
 * declarations or got different declarations, such as Microsoft Windows or
 * FreeBSD.
 *
 * The copyright statement of the GNU C library is:
 *   Copyright (C) 1991-2001, 2003, 2004, 2006, 2007, 2008, 2011, 2012
 *   Free Software Foundation, Inc.
 */

#ifndef ROHC_PROTOCOLS_NUMBERS_H
#define ROHC_PROTOCOLS_NUMBERS_H

#ifdef __KERNEL__
#  include <linux/types.h>
#else
#  include <stdbool.h>
#  include <stdint.h>
#endif


/**
 * @brief The IP numbers defined by IANA
 *
 * Full list at:
 *   http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xml
 */
enum
{
        /** The IP protocol number for Hop-by-Hop option */
        ROHC_IPPROTO_HOPOPTS   = 0,
        /** The IP protocol number for IPv4-in-IPv4 tunnels */
        ROHC_IPPROTO_IPIP      = 4,
        /** The IP protocol number for Transmission Control Protocol (TCP) */
        ROHC_IPPROTO_TCP       = 6,
        /** The IP protocol number for the User Datagram Protocol (UDP) */
        ROHC_IPPROTO_UDP       = 17,
        /** The IP protocol number for IPv6 */
        ROHC_IPPROTO_IPV6      = 41,
        /** The IP protocol number for IPv6 routing header */
        ROHC_IPPROTO_ROUTING   = 43,
        /** The IP protocol number for IPv6 fragment header */
        ROHC_IPPROTO_FRAGMENT  = 44,
        /** The IP protocol number for Generic Routing Encapsulation (GRE) */
        ROHC_IPPROTO_GRE       = 47,
        /** The IP protocol number for the Encapsulating Security Payload (ESP)  */
        ROHC_IPPROTO_ESP       = 50,
        /** The IP protocol number for Authentication Header */
        ROHC_IPPROTO_AH        = 51,
        /** The IP protocol number for Minimal Encapsulation within IP (RFC 2004) */
        ROHC_IPPROTO_MINE      = 55,
        /** The IP protocol number for IPv6 destination option */
        ROHC_IPPROTO_DSTOPTS   = 60,
        /** The IP protocol number for Mobility Header */
        ROHC_IPPROTO_MOBILITY  = 135,
        /** The IP protocol number for UDP-Lite */
        ROHC_IPPROTO_UDPLITE   = 136,
        /** The IP protocol number for the Host Identity Protocol (HIP) */
        ROHC_IPPROTO_HIP       = 139,
        /** The IP protocol number for the Shim6 Protocol */
        ROHC_IPPROTO_SHIM      = 140,
        /** The IP protocol number reserved for experimentation and testing */
        ROHC_IPPROTO_RESERVED1 = 253,
        /** The IP protocol number reserved for experimentation and testing */
        ROHC_IPPROTO_RESERVED2 = 254,
        /** The maximum IP protocol number */
        ROHC_IPPROTO_MAX       = 255
};


bool rohc_is_tunneling(const uint8_t protocol)
        __attribute__((warn_unused_result, const));

bool rohc_is_ipv6_opt(const uint8_t protocol)
        __attribute__((warn_unused_result, const));

const char * rohc_get_ip_proto_descr(const uint8_t protocol)
        __attribute__((warn_unused_result, const));

#endif