135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
/* $OpenBSD: ip_ah.h,v 1.37 2020/09/01 01:53:34 gnezdo 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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* The original version of this code was written by John Ioannidis
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* for BSD/OS in Athens, Greece, 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 John Ioannidis,
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* Angelos D. Keromytis and Niels Provos.
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* Copyright (c) 2001 Angelos D. Keromytis.
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*
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* Permission to use, copy, and modify this software with or 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_AH_H_
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#define _NETINET_IP_AH_H_
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struct ahstat {
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uint64_t ahs_hdrops; /* Packet shorter than header shows */
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uint64_t ahs_nopf; /* Protocol family not supported */
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uint64_t ahs_notdb;
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uint64_t ahs_badkcr;
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uint64_t ahs_badauth;
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uint64_t ahs_noxform;
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uint64_t ahs_qfull;
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uint64_t ahs_wrap;
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uint64_t ahs_replay;
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uint64_t ahs_badauthl; /* Bad authenticator length */
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uint64_t ahs_input; /* Input AH packets */
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uint64_t ahs_output; /* Output AH packets */
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uint64_t ahs_invalid; /* Trying to use an invalid TDB */
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uint64_t ahs_ibytes; /* Input bytes */
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uint64_t ahs_obytes; /* Output bytes */
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uint64_t ahs_toobig; /* Packet got larger than
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* IP_MAXPACKET */
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uint64_t ahs_pdrops; /* Packet blocked due to policy */
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uint64_t ahs_crypto; /* Crypto processing failure */
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uint64_t ahs_outfail; /* Packet output failure */
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};
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struct ah {
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u_int8_t ah_nh;
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u_int8_t ah_hl;
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u_int16_t ah_rv;
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u_int32_t ah_spi;
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u_int32_t ah_rpl; /* We may not use this, if we're using old xforms */
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};
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/* Length of base AH header */
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#define AH_FLENGTH 8
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/*
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* Names for AH sysctl objects
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*/
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#define AHCTL_ENABLE 1 /* Enable AH processing */
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#define AHCTL_STATS 2 /* AH stats */
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#define AHCTL_MAXID 3
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#define AHCTL_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 ahstat_counters {
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ahs_hdrops, /* Packet shorter than header shows */
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ahs_nopf, /* Protocol family not supported */
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ahs_notdb,
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ahs_badkcr,
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ahs_badauth,
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ahs_noxform,
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ahs_qfull,
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ahs_wrap,
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ahs_replay,
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ahs_badauthl, /* Bad authenticator length */
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ahs_input, /* Input AH packets */
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ahs_output, /* Output AH packets */
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ahs_invalid, /* Trying to use an invalid TDB */
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ahs_ibytes, /* Input bytes */
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ahs_obytes, /* Output bytes */
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ahs_toobig, /* Packet got larger than
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* IP_MAXPACKET */
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ahs_pdrops, /* Packet blocked due to policy */
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ahs_crypto, /* Crypto processing failure */
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ahs_outfail, /* Packet output failure */
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ahs_ncounters
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};
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extern struct cpumem *ahcounters;
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static inline void
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ahstat_inc(enum ahstat_counters c)
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{
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counters_inc(ahcounters, c);
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}
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static inline void
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ahstat_add(enum ahstat_counters c, uint64_t v)
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{
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counters_add(ahcounters, c, v);
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}
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extern int ah_enable;
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#endif /* _KERNEL */
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#endif /* _NETINET_IP_AH_H_ */
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