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Annotation of sys/netinet/ip_ipip.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: ip_ipip.h,v 1.5 2002/06/09 16:26:10 itojun 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_IPIP_H_
        !            39: #define _NETINET_IPIP_H_
        !            40:
        !            41: /*
        !            42:  * IP-inside-IP processing.
        !            43:  * Not quite all the functionality of RFC-1853, but the main idea is there.
        !            44:  */
        !            45:
        !            46: struct ipipstat
        !            47: {
        !            48:     u_int32_t  ipips_ipackets;         /* total input packets */
        !            49:     u_int32_t  ipips_opackets;         /* total output packets */
        !            50:     u_int32_t  ipips_hdrops;           /* packet shorter than header shows */
        !            51:     u_int32_t  ipips_qfull;
        !            52:     u_int64_t   ipips_ibytes;
        !            53:     u_int64_t   ipips_obytes;
        !            54:     u_int32_t  ipips_pdrops;           /* packet dropped due to policy */
        !            55:     u_int32_t  ipips_spoof;            /* IP spoofing attempts */
        !            56:     u_int32_t   ipips_family;          /* Protocol family mismatch */
        !            57:     u_int32_t   ipips_unspec;            /* Missing tunnel endpoint address */
        !            58: };
        !            59:
        !            60: #define IP4_DEFAULT_TTL    0
        !            61: #define IP4_SAME_TTL     -1
        !            62:
        !            63: /*
        !            64:  * Names for IPIP sysctl objects
        !            65:  */
        !            66: #define        IPIPCTL_ALLOW   1               /* accept incoming IP4 packets */
        !            67: #define IPIPCTL_MAXID  2
        !            68:
        !            69: #define IPIPCTL_NAMES { \
        !            70:        { 0, 0 }, \
        !            71:        { "allow", CTLTYPE_INT }, \
        !            72: }
        !            73:
        !            74: #ifdef _KERNEL
        !            75: int    ipip_sysctl(int *, u_int, void *, size_t *, void *, size_t);
        !            76:
        !            77: extern int ipip_allow;
        !            78: extern struct ipipstat ipipstat;
        !            79: #endif /* _KERNEL */
        !            80: #endif /* _NETINET_IPIP_H_ */