134 lines
3.8 KiB
C
134 lines
3.8 KiB
C
/* $OpenBSD: ip_ah.h,v 1.37 2020/09/01 01:53:34 gnezdo 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 {
|
|
uint64_t ahs_hdrops; /* Packet shorter than header shows */
|
|
uint64_t ahs_nopf; /* Protocol family not supported */
|
|
uint64_t ahs_notdb;
|
|
uint64_t ahs_badkcr;
|
|
uint64_t ahs_badauth;
|
|
uint64_t ahs_noxform;
|
|
uint64_t ahs_qfull;
|
|
uint64_t ahs_wrap;
|
|
uint64_t ahs_replay;
|
|
uint64_t ahs_badauthl; /* Bad authenticator length */
|
|
uint64_t ahs_input; /* Input AH packets */
|
|
uint64_t ahs_output; /* Output AH packets */
|
|
uint64_t ahs_invalid; /* Trying to use an invalid TDB */
|
|
uint64_t ahs_ibytes; /* Input bytes */
|
|
uint64_t ahs_obytes; /* Output bytes */
|
|
uint64_t ahs_toobig; /* Packet got larger than
|
|
* IP_MAXPACKET */
|
|
uint64_t ahs_pdrops; /* Packet blocked due to policy */
|
|
uint64_t ahs_crypto; /* Crypto processing failure */
|
|
uint64_t ahs_outfail; /* Packet output 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
|
|
|
|
/*
|
|
* Names for AH sysctl objects
|
|
*/
|
|
#define AHCTL_ENABLE 1 /* Enable AH processing */
|
|
#define AHCTL_STATS 2 /* AH stats */
|
|
#define AHCTL_MAXID 3
|
|
|
|
#define AHCTL_NAMES { \
|
|
{ 0, 0 }, \
|
|
{ "enable", CTLTYPE_INT }, \
|
|
{ "stats", CTLTYPE_STRUCT } \
|
|
}
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <sys/percpu.h>
|
|
|
|
enum ahstat_counters {
|
|
ahs_hdrops, /* Packet shorter than header shows */
|
|
ahs_nopf, /* Protocol family not supported */
|
|
ahs_notdb,
|
|
ahs_badkcr,
|
|
ahs_badauth,
|
|
ahs_noxform,
|
|
ahs_qfull,
|
|
ahs_wrap,
|
|
ahs_replay,
|
|
ahs_badauthl, /* Bad authenticator length */
|
|
ahs_input, /* Input AH packets */
|
|
ahs_output, /* Output AH packets */
|
|
ahs_invalid, /* Trying to use an invalid TDB */
|
|
ahs_ibytes, /* Input bytes */
|
|
ahs_obytes, /* Output bytes */
|
|
ahs_toobig, /* Packet got larger than
|
|
* IP_MAXPACKET */
|
|
ahs_pdrops, /* Packet blocked due to policy */
|
|
ahs_crypto, /* Crypto processing failure */
|
|
ahs_outfail, /* Packet output failure */
|
|
|
|
ahs_ncounters
|
|
};
|
|
|
|
extern struct cpumem *ahcounters;
|
|
|
|
static inline void
|
|
ahstat_inc(enum ahstat_counters c)
|
|
{
|
|
counters_inc(ahcounters, c);
|
|
}
|
|
|
|
static inline void
|
|
ahstat_add(enum ahstat_counters c, uint64_t v)
|
|
{
|
|
counters_add(ahcounters, c, v);
|
|
}
|
|
|
|
extern int ah_enable;
|
|
|
|
#endif /* _KERNEL */
|
|
#endif /* _NETINET_IP_AH_H_ */
|