1 /* $NetBSD: ipip_var.h,v 1.4 2008/04/23 06:09:05 thorpej Exp $ */ 2 /* $FreeBSD: src/sys/netipsec/ipip_var.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $ */ 3 /* $OpenBSD: ip_ipip.h,v 1.5 2002/06/09 16:26:10 itojun Exp $ */ 4 /* 5 * The authors of this code are John Ioannidis (ji@tla.org), 6 * Angelos D. Keromytis (kermit@csd.uch.gr) and 7 * Niels Provos (provos@physnet.uni-hamburg.de). 8 * 9 * The original version of this code was written by John Ioannidis 10 * for BSD/OS in Athens, Greece, in November 1995. 11 * 12 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, 13 * by Angelos D. Keromytis. 14 * 15 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis 16 * and Niels Provos. 17 * 18 * Additional features in 1999 by Angelos D. Keromytis. 19 * 20 * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis, 21 * Angelos D. Keromytis and Niels Provos. 22 * Copyright (c) 2001, Angelos D. Keromytis. 23 * 24 * Permission to use, copy, and modify this software with or without fee 25 * is hereby granted, provided that this entire notice is included in 26 * all copies of any software which is or includes a copy or 27 * modification of this software. 28 * You may use this code under the GNU public license if you so wish. Please 29 * contribute changes back to the authors under this freer than GPL license 30 * so that we may further the use of strong encryption without limitations to 31 * all. 32 * 33 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR 34 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY 35 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE 36 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR 37 * PURPOSE. 38 */ 39 40 #ifndef _NETINET_IPIP_H_ 41 #define _NETINET_IPIP_H_ 42 43 /* 44 * IP-inside-IP processing. 45 * Not quite all the functionality of RFC-1853, but the main idea is there. 46 */ 47 48 #define IPIP_STAT_IPACKETS 0 /* total input packets */ 49 #define IPIP_STAT_OPACKETS 1 /* total output packets */ 50 #define IPIP_STAT_HDROPS 2 /* packet shorter than header shows */ 51 #define IPIP_STAT_QFULL 3 52 #define IPIP_STAT_IBYTES 4 53 #define IPIP_STAT_OBYTES 5 54 #define IPIP_STAT_PDROPS 6 /* packet dropped due to policy */ 55 #define IPIP_STAT_SPOOF 7 /* IP spoofing attempts */ 56 #define IPIP_STAT_FAMILY 8 /* protocol family mismatch */ 57 #define IPIP_STAT_UNSPEC 9 /* missing tunnel endpoint address */ 58 59 #define IPIP_NSTATS 10 60 61 #ifdef _KERNEL 62 extern int ipip_allow; 63 #endif /* _KERNEL */ 64 #endif /* !_NETINET_IPIP_H_ */ 65