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Annotation of sys/netinet/ip_ipcomp.h, Revision 1.1

1.1     ! nbrk        1: /* $OpenBSD: ip_ipcomp.h,v 1.6 2004/02/17 12:07:45 markus Exp $ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2001 Jean-Jacques Bernard-Gundol (jj@wabbitt.org)
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
        !             9:  *
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *   notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *   notice, this list of conditions and the following disclaimer in the
        !            14:  *   documentation and/or other materials provided with the distribution.
        !            15:  * 3. The name of the author may not be used to endorse or promote products
        !            16:  *   derived from this software without specific prior written permission.
        !            17:  *
        !            18:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            19:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            20:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            21:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            22:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            23:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            24:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            25:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            26:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            27:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            28:  */
        !            29:
        !            30: /* IP payload compression protocol (IPComp), see RFC 2393 */
        !            31:
        !            32: #ifndef _NETINET_IP_IPCOMP_H_
        !            33: #define _NETINET_IP_IPCOMP_H_
        !            34:
        !            35: struct ipcompstat {
        !            36:        u_int32_t       ipcomps_hdrops; /* Packet shorter than header shows */
        !            37:        u_int32_t       ipcomps_nopf;   /* Protocol family not supported */
        !            38:        u_int32_t       ipcomps_notdb;
        !            39:        u_int32_t       ipcomps_badkcr;
        !            40:        u_int32_t       ipcomps_qfull;
        !            41:        u_int32_t       ipcomps_noxform;
        !            42:        u_int32_t       ipcomps_wrap;
        !            43:        u_int32_t       ipcomps_input;  /* Input IPcomp packets */
        !            44:        u_int32_t       ipcomps_output; /* Output IPcomp packets */
        !            45:        u_int32_t       ipcomps_invalid;        /* Trying to use an invalid
        !            46:                                                 * TDB */
        !            47:        u_int64_t       ipcomps_ibytes; /* Input bytes */
        !            48:        u_int64_t       ipcomps_obytes; /* Output bytes */
        !            49:        u_int32_t       ipcomps_toobig; /* Packet got larger than
        !            50:                                         * IP_MAXPACKET */
        !            51:        u_int32_t       ipcomps_pdrops; /* Packet blocked due to policy */
        !            52:        u_int32_t       ipcomps_crypto; /* "Crypto" processing failure */
        !            53:        u_int32_t       ipcomps_minlen; /* packets too short for compress */
        !            54: };
        !            55:
        !            56: /* IPCOMP header */
        !            57: struct ipcomp {
        !            58:        u_int8_t        ipcomp_nh;      /* Next header */
        !            59:        u_int8_t        ipcomp_flags;   /* Flags: reserved field: 0 */
        !            60:        u_int16_t       ipcomp_cpi;     /* Compression Parameter Index,
        !            61:                                         * Network order */
        !            62: };
        !            63:
        !            64: /* Length of IPCOMP header */
        !            65: #define IPCOMP_HLENGTH         4
        !            66:
        !            67: /*
        !            68:  * Names for IPCOMP sysctl objects
        !            69:  */
        !            70: #define IPCOMPCTL_ENABLE       1       /* Enable COMP processing */
        !            71: #define IPCOMPCTL_MAXID                2
        !            72:
        !            73: #define IPCOMPCTL_NAMES { \
        !            74:        { 0, 0 }, \
        !            75:        { "enable", CTLTYPE_INT}, \
        !            76: }
        !            77:
        !            78: #define IPCOMPCTL_VARS { \
        !            79:        NULL, \
        !            80:        &ipcomp_enable, \
        !            81: }
        !            82:
        !            83: #ifdef _KERNEL
        !            84: extern int ipcomp_enable;
        !            85: extern struct ipcompstat ipcompstat;
        !            86: #endif                         /* _KERNEL */
        !            87: #endif /* _NETINET_IP_IPCOMP_H_ */