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/* $OpenBSD: ip_esp.h,v 1.47 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 by 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_ESP_H_
#define _NETINET_IP_ESP_H_
struct espstat {
uint64_t esps_hdrops; /* Packet shorter than header shows */
uint64_t esps_nopf; /* Protocol family not supported */
uint64_t esps_notdb;
uint64_t esps_badkcr;
uint64_t esps_qfull;
uint64_t esps_noxform;
uint64_t esps_badilen;
uint64_t esps_wrap; /* Replay counter wrapped around */
uint64_t esps_badenc; /* Bad encryption detected */
uint64_t esps_badauth; /* Only valid for transforms
* with auth */
uint64_t esps_replay; /* Possible packet replay detected */
uint64_t esps_input; /* Input ESP packets */
uint64_t esps_output; /* Output ESP packets */
uint64_t esps_invalid; /* Trying to use an invalid TDB */
uint64_t esps_ibytes; /* Input bytes */
uint64_t esps_obytes; /* Output bytes */
uint64_t esps_toobig; /* Packet got larger than
* IP_MAXPACKET */
uint64_t esps_pdrops; /* Packet blocked due to policy */
uint64_t esps_crypto; /* Crypto processing failure */
uint64_t esps_udpencin; /* Input ESP-in-UDP packets */
uint64_t esps_udpencout; /* Output ESP-in-UDP packets */
uint64_t esps_udpinval; /* Invalid input ESP-in-UDP packets */
uint64_t esps_udpneeded; /* Trying to use a ESP-in-UDP TDB */
uint64_t esps_outfail; /* Packet output failure */
};
/*
* Names for ESP sysctl objects
*/
#define ESPCTL_ENABLE 1 /* Enable ESP processing */
#define ESPCTL_UDPENCAP_ENABLE 2 /* Enable ESP over UDP */
#define ESPCTL_UDPENCAP_PORT 3 /* UDP port for encapsulation */
#define ESPCTL_STATS 4 /* ESP Stats */
#define ESPCTL_MAXID 5
#define ESPCTL_NAMES { \
{ 0, 0 }, \
{ "enable", CTLTYPE_INT }, \
{ "udpencap", CTLTYPE_INT }, \
{ "udpencap_port", CTLTYPE_INT }, \
{ "stats", CTLTYPE_STRUCT }, \
}
#ifdef _KERNEL
#include <sys/percpu.h>
enum espstat_counters {
esps_hdrops, /* Packet shorter than header shows */
esps_nopf, /* Protocol family not supported */
esps_notdb,
esps_badkcr,
esps_qfull,
esps_noxform,
esps_badilen,
esps_wrap, /* Replay counter wrapped around */
esps_badenc, /* Bad encryption detected */
esps_badauth, /* Only valid for transformsx
* with auth */
esps_replay, /* Possible packet replay detected */
esps_input, /* Input ESP packets */
esps_output, /* Output ESP packets */
esps_invalid, /* Trying to use an invalid TDB */
esps_ibytes, /* Input bytes */
esps_obytes, /* Output bytes */
esps_toobig, /* Packet got larger than
* IP_MAXPACKET */
esps_pdrops, /* Packet blocked due to policy */
esps_crypto, /* Crypto processing failure */
esps_udpencin, /* Input ESP-in-UDP packets */
esps_udpencout, /* Output ESP-in-UDP packets */
esps_udpinval, /* Invalid input ESP-in-UDP packets */
esps_udpneeded, /* Trying to use a ESP-in-UDP TDB */
esps_outfail, /* Packet output failure */
esps_ncounters
};
extern struct cpumem *espcounters;
static inline void
espstat_inc(enum espstat_counters c)
{
counters_inc(espcounters, c);
}
static inline void
espstat_add(enum espstat_counters c, uint64_t v)
{
counters_add(espcounters, c, v);
}
extern int esp_enable;
extern int udpencap_enable;
extern int udpencap_port;
#endif /* _KERNEL */
#endif /* _NETINET_IP_ESP_H_ */
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