1 /* $OpenBSD: ip_esp.h,v 1.38 2003/02/12 14:41:07 jason Exp $ */ 2 /* 3 * The authors of this code are John Ioannidis (ji@tla.org), 4 * Angelos D. Keromytis (kermit@csd.uch.gr) and 5 * Niels Provos (provos@physnet.uni-hamburg.de). 6 * 7 * The original version of this code was written by John Ioannidis 8 * for BSD/OS in Athens, Greece, in November 1995. 9 * 10 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, 11 * by Angelos D. Keromytis. 12 * 13 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis 14 * and Niels Provos. 15 * 16 * Additional features in 1999 by Angelos D. Keromytis. 17 * 18 * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis, 19 * Angelos D. Keromytis and Niels Provos. 20 * Copyright (c) 2001 Angelos D. Keromytis. 21 * 22 * Permission to use, copy, and modify this software with or without fee 23 * is hereby granted, provided that this entire notice is included in 24 * all copies of any software which is or includes a copy or 25 * modification of this software. 26 * You may use this code under the GNU public license if you so wish. Please 27 * contribute changes back to the authors under this freer than GPL license 28 * so that we may further the use of strong encryption without limitations to 29 * all. 30 * 31 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR 32 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY 33 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE 34 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR 35 * PURPOSE. 36 */ 37 38 #ifndef _NETINET_IP_ESP_H_ 39 #define _NETINET_IP_ESP_H_ 40 41 #define ESP_ALEN 12 /* 96-bit authenticator */ 42 43 struct espstat 44 { 45 u_int32_t esps_hdrops; /* Packet shorter than header shows */ 46 u_int32_t esps_nopf; /* Protocol family not supported */ 47 u_int32_t esps_notdb; 48 u_int32_t esps_badkcr; 49 u_int32_t esps_qfull; 50 u_int32_t esps_noxform; 51 u_int32_t esps_badilen; 52 u_int32_t esps_wrap; /* Replay counter wrapped around */ 53 u_int32_t esps_badenc; /* Bad encryption detected */ 54 u_int32_t esps_badauth; /* Only valid for transforms with auth */ 55 u_int32_t esps_replay; /* Possible packet replay detected */ 56 u_int32_t esps_input; /* Input ESP packets */ 57 u_int32_t esps_output; /* Output ESP packets */ 58 u_int32_t esps_invalid; /* Trying to use an invalid TDB */ 59 u_int64_t esps_ibytes; /* Input bytes */ 60 u_int64_t esps_obytes; /* Output bytes */ 61 u_int32_t esps_toobig; /* Packet got larger than IP_MAXPACKET */ 62 u_int32_t esps_pdrops; /* Packet blocked due to policy */ 63 u_int32_t esps_crypto; /* Crypto processing failure */ 64 }; 65 66 /* 67 * Names for ESP sysctl objects 68 */ 69 #define ESPCTL_ENABLE 1 /* Enable ESP processing */ 70 #define ESPCTL_MAXID 2 71 72 #define ESPCTL_NAMES { \ 73 { 0, 0 }, \ 74 { "enable", CTLTYPE_INT }, \ 75 } 76 77 #ifdef _KERNEL 78 extern int esp_enable; 79 extern struct espstat espstat; 80 #endif /* _KERNEL */ 81 #endif /* _NETINET_IP_ESP_H_ */ 82