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/* $OpenBSD: krb-archaeology.h,v 1.3 1998/02/25 15:51:20 art Exp $ */
/* $KTH: krb-archaeology.h,v 1.2 1997/12/05 02:04:44 joda Exp $ */
/*
* This source code is no longer held under any constraint of USA
* `cryptographic laws' since it was exported legally. The cryptographic
* functions were removed from the code and a "Bones" distribution was
* made. A Commodity Jurisdiction Request #012-94 was filed with the
* USA State Department, who handed it to the Commerce department. The
* code was determined to fall under General License GTDA under ECCN 5D96G,
* and hence exportable. The cryptographic interfaces were re-added by Eric
* Young, and then KTH proceeded to maintain the code in the free world.
*/
/*
* Most of the cruft in this file is probably:
*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
* of Technology.
*
* Export of this software from the United States of America is assumed
* to require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*/
#ifndef __KRB_ARCHAEOLOGY_H__
#define __KRB_ARCHAEOLOGY_H__
/* Compare x and y in VAX byte order, result is -1, 0 or 1. */
#define krb_lsb_antinet_ulong_less(x, y) (((x) == (y)) ? 0 : krb_lsb_antinet_ulong_cmp(x, y))
#define krb_lsb_antinet_ushort_less(x, y) (((x) == (y)) ? 0 : krb_lsb_antinet_ushort_cmp(x, y))
int krb_lsb_antinet_ulong_cmp(u_int32_t x, u_int32_t y);
int krb_lsb_antinet_ushort_cmp(u_int16_t x, u_int16_t y);
u_int32_t lsb_time(time_t t, struct sockaddr_in *src, struct sockaddr_in *dst);
/* Macro's to obtain various fields from a packet */
#define pkt_version(packet) (unsigned int) *(packet->dat)
#define pkt_msg_type(packet) (unsigned int) *(packet->dat+1)
#define pkt_a_name(packet) (packet->dat+2)
#define pkt_a_inst(packet) \
(packet->dat+3+strlen((char *)pkt_a_name(packet)))
#define pkt_a_realm(packet) \
(pkt_a_inst(packet)+1+strlen((char *)pkt_a_inst(packet)))
/* Macro to obtain realm from application request */
#define apreq_realm(auth) (auth->dat + 3)
#define pkt_time_ws(packet) (char *) \
(packet->dat+5+strlen((char *)pkt_a_name(packet)) + \
strlen((char *)pkt_a_inst(packet)) + \
strlen((char *)pkt_a_realm(packet)))
#define pkt_no_req(packet) (unsigned short) \
*(packet->dat+9+strlen((char *)pkt_a_name(packet)) + \
strlen((char *)pkt_a_inst(packet)) + \
strlen((char *)pkt_a_realm(packet)))
#define pkt_x_date(packet) (char *) \
(packet->dat+10+strlen((char *)pkt_a_name(packet)) + \
strlen((char *)pkt_a_inst(packet)) + \
strlen((char *)pkt_a_realm(packet)))
#define pkt_err_code(packet) ( (char *) \
(packet->dat+9+strlen((char *)pkt_a_name(packet)) + \
strlen((char *)pkt_a_inst(packet)) + \
strlen((char *)pkt_a_realm(packet))))
#define pkt_err_text(packet) \
(packet->dat+13+strlen((char *)pkt_a_name(packet)) + \
strlen((char *)pkt_a_inst(packet)) + \
strlen((char *)pkt_a_realm(packet)))
/*
* macros for byte swapping; also scratch space
* u_quad 0-->7, 1-->6, 2-->5, 3-->4, 4-->3, 5-->2, 6-->1, 7-->0
* u_int32_t 0-->3, 1-->2, 2-->1, 3-->0
* u_int16_t 0-->1, 1-->0
*/
#define swap_u_16(x) {\
u_int32_t _krb_swap_tmp[4];\
swab(((char *) x) +0, ((char *) _krb_swap_tmp) +14 ,2); \
swab(((char *) x) +2, ((char *) _krb_swap_tmp) +12 ,2); \
swab(((char *) x) +4, ((char *) _krb_swap_tmp) +10 ,2); \
swab(((char *) x) +6, ((char *) _krb_swap_tmp) +8 ,2); \
swab(((char *) x) +8, ((char *) _krb_swap_tmp) +6 ,2); \
swab(((char *) x) +10,((char *) _krb_swap_tmp) +4 ,2); \
swab(((char *) x) +12,((char *) _krb_swap_tmp) +2 ,2); \
swab(((char *) x) +14,((char *) _krb_swap_tmp) +0 ,2); \
memcpy(x, _krb_swap_tmp, 16);\
}
#define swap_u_12(x) {\
u_int32_t _krb_swap_tmp[4];\
swab(( char *) x, ((char *) _krb_swap_tmp) +10 ,2); \
swab(((char *) x) +2, ((char *) _krb_swap_tmp) +8 ,2); \
swab(((char *) x) +4, ((char *) _krb_swap_tmp) +6 ,2); \
swab(((char *) x) +6, ((char *) _krb_swap_tmp) +4 ,2); \
swab(((char *) x) +8, ((char *) _krb_swap_tmp) +2 ,2); \
swab(((char *) x) +10,((char *) _krb_swap_tmp) +0 ,2); \
memcpy(x, _krb_swap_tmp, 12);\
}
#define swap_C_Block(x) {\
u_int32_t _krb_swap_tmp[4];\
swab(( char *) x, ((char *) _krb_swap_tmp) +6 ,2); \
swab(((char *) x) +2,((char *) _krb_swap_tmp) +4 ,2); \
swab(((char *) x) +4,((char *) _krb_swap_tmp) +2 ,2); \
swab(((char *) x) +6,((char *) _krb_swap_tmp) ,2); \
memcpy(x, _krb_swap_tmp, 8);\
}
#define swap_u_quad(x) {\
u_int32_t _krb_swap_tmp[4];\
swab(( char *) &x, ((char *) _krb_swap_tmp) +6 ,2); \
swab(((char *) &x) +2,((char *) _krb_swap_tmp) +4 ,2); \
swab(((char *) &x) +4,((char *) _krb_swap_tmp) +2 ,2); \
swab(((char *) &x) +6,((char *) _krb_swap_tmp) ,2); \
memcpy(x, _krb_swap_tmp, 8);\
}
#define swap_u_long(x) {\
u_int32_t _krb_swap_tmp[4];\
swab((char *) &x, ((char *) _krb_swap_tmp) +2 ,2); \
swab(((char *) &x) +2,((char *) _krb_swap_tmp),2); \
x = _krb_swap_tmp[0]; \
}
#define swap_u_short(x) {\
u_int16_t _krb_swap_sh_tmp; \
swab((char *) &x, ( &_krb_swap_sh_tmp) ,2); \
x = (u_int16_t) _krb_swap_sh_tmp; \
}
/* Kerberos ticket flag field bit definitions */
#define K_FLAG_ORDER 0 /* bit 0 --> lsb */
#define K_FLAG_1 /* reserved */
#define K_FLAG_2 /* reserved */
#define K_FLAG_3 /* reserved */
#define K_FLAG_4 /* reserved */
#define K_FLAG_5 /* reserved */
#define K_FLAG_6 /* reserved */
#define K_FLAG_7 /* reserved, bit 7 --> msb */
#endif /* __KRB_ARCHAEOLOGY_H__ */
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