127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
/* $OpenBSD: ip_ipcomp.h,v 1.11 2020/09/01 01:53:34 gnezdo Exp $ */
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/*
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* Copyright (c) 2001 Jean-Jacques Bernard-Gundol (jj@wabbitt.org)
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*
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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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* are met:
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*
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* 1. 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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* 2. 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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* 3. 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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*
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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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*/
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/* IP payload compression protocol (IPComp), see RFC 2393 */
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#ifndef _NETINET_IP_IPCOMP_H_
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#define _NETINET_IP_IPCOMP_H_
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struct ipcompstat {
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uint64_t ipcomps_hdrops; /* Packet shorter than header shows */
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uint64_t ipcomps_nopf; /* Protocol family not supported */
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uint64_t ipcomps_notdb;
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uint64_t ipcomps_badkcr;
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uint64_t ipcomps_qfull;
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uint64_t ipcomps_noxform;
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uint64_t ipcomps_wrap;
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uint64_t ipcomps_input; /* Input IPcomp packets */
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uint64_t ipcomps_output; /* Output IPcomp packets */
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uint64_t ipcomps_invalid; /* Trying to use an invalid
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* TDB */
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uint64_t ipcomps_ibytes; /* Input bytes */
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uint64_t ipcomps_obytes; /* Output bytes */
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uint64_t ipcomps_toobig; /* Packet got larger than
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* IP_MAXPACKET */
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uint64_t ipcomps_pdrops; /* Packet blocked due to policy */
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uint64_t ipcomps_crypto; /* "Crypto" processing failure */
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uint64_t ipcomps_minlen; /* packets too short for compress */
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uint64_t ipcomps_outfail; /* Packet output failure */
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};
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/* IPCOMP header */
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struct ipcomp {
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u_int8_t ipcomp_nh; /* Next header */
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u_int8_t ipcomp_flags; /* Flags: reserved field: 0 */
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u_int16_t ipcomp_cpi; /* Compression Parameter Index,
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* Network order */
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};
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/* Length of IPCOMP header */
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#define IPCOMP_HLENGTH 4
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/*
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* Names for IPCOMP sysctl objects
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*/
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#define IPCOMPCTL_ENABLE 1 /* Enable COMP processing */
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#define IPCOMPCTL_STATS 2 /* COMP stats */
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#define IPCOMPCTL_MAXID 3
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#define IPCOMPCTL_NAMES { \
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{ 0, 0 }, \
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{ "enable", CTLTYPE_INT }, \
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{ "stats", CTLTYPE_STRUCT }, \
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}
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#ifdef _KERNEL
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#include <sys/percpu.h>
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enum ipcomp_counters {
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ipcomps_hdrops, /* Packet shorter than header shows */
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ipcomps_nopf, /* Protocol family not supported */
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ipcomps_notdb,
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ipcomps_badkcr,
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ipcomps_qfull,
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ipcomps_noxform,
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ipcomps_wrap,
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ipcomps_input, /* Input IPcomp packets */
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ipcomps_output, /* Output IPcomp packets */
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ipcomps_invalid, /* Trying to use an invalid
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* TDB */
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ipcomps_ibytes, /* Input bytes */
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ipcomps_obytes, /* Output bytes */
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ipcomps_toobig, /* Packet got larger than
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* IP_MAXPACKET */
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ipcomps_pdrops, /* Packet blocked due to policy */
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ipcomps_crypto, /* "Crypto" processing failure */
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ipcomps_minlen, /* packets too short for compress */
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ipcomps_outfail, /* Packet output failure */
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ipcomps_ncounters
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};
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extern struct cpumem *ipcompcounters;
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static inline void
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ipcompstat_inc(enum ipcomp_counters c)
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{
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counters_inc(ipcompcounters, c);
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}
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static inline void
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ipcompstat_add(enum ipcomp_counters c, uint64_t v)
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{
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counters_add(ipcompcounters, c, v);
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}
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extern int ipcomp_enable;
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#endif /* _KERNEL */
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#endif /* _NETINET_IP_IPCOMP_H_ */
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