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Annotation of sys/netinet/ip_ipcomp.h, Revision 1.1.1.1

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_ */