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//==========================================================================
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//
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// include/netinet/ip_esp.h
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//
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//
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//
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//==========================================================================
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//####BSDCOPYRIGHTBEGIN####
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//
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// -------------------------------------------
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//
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// Portions of this software may have been derived from OpenBSD or other sources,
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// and are covered by the appropriate copyright disclaimers included herein.
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//
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// -------------------------------------------
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//
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//####BSDCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): gthomas
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// Contributors: gthomas
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// Date: 2000-01-10
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// Purpose:
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// Description:
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//
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//
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//####DESCRIPTIONEND####
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//
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//==========================================================================
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/* $OpenBSD: ip_esp.h,v 1.26 1999/12/09 00:33:29 angelos Exp $ */
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/*
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* The authors of this code are John Ioannidis (ji@tla.org),
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* Angelos D. Keromytis (kermit@csd.uch.gr) and
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* Niels Provos (provos@physnet.uni-hamburg.de).
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*
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* This code was written by John Ioannidis for BSD/OS in Athens, Greece,
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* in November 1995.
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*
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* Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
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* by Angelos D. Keromytis.
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*
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* Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
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* and Niels Provos.
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*
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* Additional features in 1999 by Angelos D. Keromytis.
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*
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* Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
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* Angelos D. Keromytis and Niels Provos.
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*
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* Permission to use, copy, and modify this software without fee
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* is hereby granted, provided that this entire notice is included in
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* all copies of any software which is or includes a copy or
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* modification of this software.
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* You may use this code under the GNU public license if you so wish. Please
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* contribute changes back to the authors under this freer than GPL license
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* so that we may further the use of strong encryption without limitations to
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* all.
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*
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* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
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* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
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* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
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* PURPOSE.
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*/
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#ifndef _NETINET_IP_ESP_H_
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#define _NETINET_IP_ESP_H_
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/*
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* Encapsulation Security Payload Processing
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* Per RFC1827 (Atkinson, 1995)
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*/
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/* Various defines for the "new" ESP */
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#define ESP_NEW_ALEN 12 /* 96bits authenticator */
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struct esp_old
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{
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u_int32_t esp_spi; /* Security Parameters Index */
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u_int8_t esp_iv[8]; /* iv[4] may actually be data! */
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};
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#define ESP_OLD_FLENGTH 12
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#define ESP_NEW_FLENGTH 16
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struct esp_new
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{
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u_int32_t esp_spi; /* Security Parameter Index */
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u_int32_t esp_rpl; /* Sequence Number, Replay Counter */
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u_int8_t esp_iv[8]; /* Data may start already at iv[0]! */
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};
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struct espstat
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{
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u_int32_t esps_hdrops; /* packet shorter than header shows */
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u_int32_t esps_notdb;
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u_int32_t esps_badkcr;
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u_int32_t esps_qfull;
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u_int32_t esps_noxform;
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u_int32_t esps_badilen;
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u_int32_t esps_wrap; /* Replay counter wrapped around */
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u_int32_t esps_badenc; /* Bad encryption detected */
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u_int32_t esps_badauth; /* Only valid for transforms with auth */
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u_int32_t esps_replay; /* Possible packet replay detected */
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u_int32_t esps_input; /* Input ESP packets */
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u_int32_t esps_output; /* Output ESP packets */
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u_int32_t esps_invalid; /* Trying to use an invalid TDB */
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u_int64_t esps_ibytes; /* input bytes */
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u_int64_t esps_obytes; /* output bytes */
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u_int32_t esps_toobig; /* packet got larger than IP_MAXPACKET */
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u_int32_t esps_pdrops; /* packet blocked due to policy */
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};
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/*
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* Names for ESP sysctl objects
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*/
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#define ESPCTL_ENABLE 1 /* Enable ESP processing */
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#define ESPCTL_MAXID 2
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#define ESPCTL_NAMES { \
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{ 0, 0 }, \
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{ "enable", CTLTYPE_INT }, \
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}
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#ifdef _KERNEL
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void esp_input __P((struct mbuf *, ...));
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int esp_output __P((struct mbuf *, struct tdb *, struct mbuf **));
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int esp_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
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#ifdef INET6
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void esp6_input __P((struct mbuf *, ...));
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#endif /* INET6 */
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extern int esp_enable;
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struct espstat espstat;
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#endif /* _Kernel */
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#endif // _NETINET_IP_ESP_H_
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