/* $OpenBSD: ip_ah.h,v 1.29 2002/06/09 16:26:10 itojun Exp $ */ /* * The authors of this code are John Ioannidis (ji@tla.org), * Angelos D. Keromytis (kermit@csd.uch.gr) and * Niels Provos (provos@physnet.uni-hamburg.de). * * The original version of this code was written by John Ioannidis * for BSD/OS in Athens, Greece, in November 1995. * * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, * by Angelos D. Keromytis. * * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis * and Niels Provos. * * Additional features in 1999 by Angelos D. Keromytis. * * Copyright (C) 1995, 1996, 1997, 1998, 1999 John Ioannidis, * Angelos D. Keromytis and Niels Provos. * Copyright (c) 2001 Angelos D. Keromytis. * * Permission to use, copy, and modify this software with or without fee * is hereby granted, provided that this entire notice is included in * all copies of any software which is or includes a copy or * modification of this software. * You may use this code under the GNU public license if you so wish. Please * contribute changes back to the authors under this freer than GPL license * so that we may further the use of strong encryption without limitations to * all. * * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR * PURPOSE. */ #ifndef _NETINET_IP_AH_H_ #define _NETINET_IP_AH_H_ struct ahstat { u_int32_t ahs_hdrops; /* Packet shorter than header shows */ u_int32_t ahs_nopf; /* Protocol family not supported */ u_int32_t ahs_notdb; u_int32_t ahs_badkcr; u_int32_t ahs_badauth; u_int32_t ahs_noxform; u_int32_t ahs_qfull; u_int32_t ahs_wrap; u_int32_t ahs_replay; u_int32_t ahs_badauthl; /* Bad authenticator length */ u_int32_t ahs_input; /* Input AH packets */ u_int32_t ahs_output; /* Output AH packets */ u_int32_t ahs_invalid; /* Trying to use an invalid TDB */ u_int64_t ahs_ibytes; /* Input bytes */ u_int64_t ahs_obytes; /* Output bytes */ u_int32_t ahs_toobig; /* Packet got larger than IP_MAXPACKET */ u_int32_t ahs_pdrops; /* Packet blocked due to policy */ u_int32_t ahs_crypto; /* Crypto processing failure */ }; struct ah { u_int8_t ah_nh; u_int8_t ah_hl; u_int16_t ah_rv; u_int32_t ah_spi; u_int32_t ah_rpl; /* We may not use this, if we're using old xforms */ }; /* Length of base AH header */ #define AH_FLENGTH 8 /* Size of the largest hash function output used in AH-new, in bytes */ #define AH_MAX_HASHLEN 20 /* * Names for AH sysctl objects */ #define AHCTL_ENABLE 1 /* Enable AH processing */ #define AHCTL_MAXID 2 #define AHCTL_NAMES { \ { 0, 0 }, \ { "enable", CTLTYPE_INT }, \ } #ifdef _KERNEL extern int ah_enable; struct ahstat ahstat; #endif /* _KERNEL */ #endif /* _NETINET_IP_AH_H_ */