1 /* $FreeBSD$ */ 2 /* $OpenBSD: ip_esp.h,v 1.37 2002/06/09 16:26:10 itojun Exp $ */ 3 /*- 4 * The authors of this code are John Ioannidis (ji@tla.org), 5 * Angelos D. Keromytis (kermit@csd.uch.gr) and 6 * Niels Provos (provos@physnet.uni-hamburg.de). 7 * 8 * The original version of this code was written by John Ioannidis 9 * for BSD/OS in Athens, Greece, in November 1995. 10 * 11 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, 12 * by Angelos D. Keromytis. 13 * 14 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis 15 * and Niels Provos. 16 * 17 * Additional features in 1999 by Angelos D. Keromytis. 18 * 19 * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis, 20 * Angelos D. Keromytis and Niels Provos. 21 * Copyright (c) 2001 Angelos D. Keromytis. 22 * 23 * Permission to use, copy, and modify this software with or without fee 24 * is hereby granted, provided that this entire notice is included in 25 * all copies of any software which is or includes a copy or 26 * modification of this software. 27 * You may use this code under the GNU public license if you so wish. Please 28 * contribute changes back to the authors under this freer than GPL license 29 * so that we may further the use of strong encryption without limitations to 30 * all. 31 * 32 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR 33 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY 34 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE 35 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR 36 * PURPOSE. 37 */ 38 39 #ifndef _NETIPSEC_ESP_VAR_H_ 40 #define _NETIPSEC_ESP_VAR_H_ 41 42 /* 43 * These define the algorithm indices into the histogram. They're 44 * presently based on the PF_KEY v2 protocol values which is bogus; 45 * they should be decoupled from the protocol at which time we can 46 * pack them and reduce the size of the array to a reasonable value. 47 */ 48 #define ESP_ALG_MAX 256 /* NB: could be < but skipjack is 249 */ 49 50 struct espstat { 51 u_int32_t esps_hdrops; /* Packet shorter than header shows */ 52 u_int32_t esps_nopf; /* Protocol family not supported */ 53 u_int32_t esps_notdb; 54 u_int32_t esps_badkcr; 55 u_int32_t esps_qfull; 56 u_int32_t esps_noxform; 57 u_int32_t esps_badilen; 58 u_int32_t esps_wrap; /* Replay counter wrapped around */ 59 u_int32_t esps_badenc; /* Bad encryption detected */ 60 u_int32_t esps_badauth; /* Only valid for transforms with auth */ 61 u_int32_t esps_replay; /* Possible packet replay detected */ 62 u_int32_t esps_input; /* Input ESP packets */ 63 u_int32_t esps_output; /* Output ESP packets */ 64 u_int32_t esps_invalid; /* Trying to use an invalid TDB */ 65 u_int64_t esps_ibytes; /* Input bytes */ 66 u_int64_t esps_obytes; /* Output bytes */ 67 u_int32_t esps_toobig; /* Packet got larger than IP_MAXPACKET */ 68 u_int32_t esps_pdrops; /* Packet blocked due to policy */ 69 u_int32_t esps_crypto; /* Crypto processing failure */ 70 u_int32_t esps_tunnel; /* Tunnel sanity check failure */ 71 u_int32_t esps_hist[ESP_ALG_MAX]; /* Per-algorithm op count */ 72 }; 73 74 #ifdef _KERNEL 75 extern int esp_enable; 76 extern struct espstat espstat; 77 #endif /* _KERNEL */ 78 #endif /*_NETIPSEC_ESP_VAR_H_*/ 79