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