132 lines
5.0 KiB
C
132 lines
5.0 KiB
C
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/*
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* $Id: krb-archaeology.h,v 1.2 1997/12/05 02:04:44 joda Exp $
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*
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* Most of the cruft in this file is probably:
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*
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* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
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* of Technology.
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*
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* For copying and distribution information, please see the file
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* <mit-copyright.h>.
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*/
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#ifndef __KRB_ARCHAEOLOGY_H__
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#define __KRB_ARCHAEOLOGY_H__
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/* Compare x and y in VAX byte order, result is -1, 0 or 1. */
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#define krb_lsb_antinet_ulong_less(x, y) (((x) == (y)) ? 0 : krb_lsb_antinet_ulong_cmp(x, y))
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#define krb_lsb_antinet_ushort_less(x, y) (((x) == (y)) ? 0 : krb_lsb_antinet_ushort_cmp(x, y))
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int krb_lsb_antinet_ulong_cmp(u_int32_t x, u_int32_t y);
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int krb_lsb_antinet_ushort_cmp(u_int16_t x, u_int16_t y);
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u_int32_t lsb_time(time_t t, struct sockaddr_in *src, struct sockaddr_in *dst);
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/* Macro's to obtain various fields from a packet */
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#define pkt_version(packet) (unsigned int) *(packet->dat)
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#define pkt_msg_type(packet) (unsigned int) *(packet->dat+1)
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#define pkt_a_name(packet) (packet->dat+2)
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#define pkt_a_inst(packet) \
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(packet->dat+3+strlen((char *)pkt_a_name(packet)))
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#define pkt_a_realm(packet) \
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(pkt_a_inst(packet)+1+strlen((char *)pkt_a_inst(packet)))
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/* Macro to obtain realm from application request */
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#define apreq_realm(auth) (auth->dat + 3)
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#define pkt_time_ws(packet) (char *) \
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(packet->dat+5+strlen((char *)pkt_a_name(packet)) + \
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strlen((char *)pkt_a_inst(packet)) + \
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strlen((char *)pkt_a_realm(packet)))
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#define pkt_no_req(packet) (unsigned short) \
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*(packet->dat+9+strlen((char *)pkt_a_name(packet)) + \
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strlen((char *)pkt_a_inst(packet)) + \
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strlen((char *)pkt_a_realm(packet)))
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#define pkt_x_date(packet) (char *) \
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(packet->dat+10+strlen((char *)pkt_a_name(packet)) + \
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strlen((char *)pkt_a_inst(packet)) + \
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strlen((char *)pkt_a_realm(packet)))
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#define pkt_err_code(packet) ( (char *) \
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(packet->dat+9+strlen((char *)pkt_a_name(packet)) + \
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strlen((char *)pkt_a_inst(packet)) + \
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strlen((char *)pkt_a_realm(packet))))
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#define pkt_err_text(packet) \
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(packet->dat+13+strlen((char *)pkt_a_name(packet)) + \
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strlen((char *)pkt_a_inst(packet)) + \
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strlen((char *)pkt_a_realm(packet)))
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/*
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* macros for byte swapping; also scratch space
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* u_quad 0-->7, 1-->6, 2-->5, 3-->4, 4-->3, 5-->2, 6-->1, 7-->0
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* u_int32_t 0-->3, 1-->2, 2-->1, 3-->0
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* u_int16_t 0-->1, 1-->0
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*/
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#define swap_u_16(x) {\
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u_int32_t _krb_swap_tmp[4];\
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swab(((char *) x) +0, ((char *) _krb_swap_tmp) +14 ,2); \
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swab(((char *) x) +2, ((char *) _krb_swap_tmp) +12 ,2); \
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swab(((char *) x) +4, ((char *) _krb_swap_tmp) +10 ,2); \
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swab(((char *) x) +6, ((char *) _krb_swap_tmp) +8 ,2); \
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swab(((char *) x) +8, ((char *) _krb_swap_tmp) +6 ,2); \
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swab(((char *) x) +10,((char *) _krb_swap_tmp) +4 ,2); \
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swab(((char *) x) +12,((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) x) +14,((char *) _krb_swap_tmp) +0 ,2); \
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memcpy(x, _krb_swap_tmp, 16);\
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}
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#define swap_u_12(x) {\
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u_int32_t _krb_swap_tmp[4];\
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swab(( char *) x, ((char *) _krb_swap_tmp) +10 ,2); \
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swab(((char *) x) +2, ((char *) _krb_swap_tmp) +8 ,2); \
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swab(((char *) x) +4, ((char *) _krb_swap_tmp) +6 ,2); \
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swab(((char *) x) +6, ((char *) _krb_swap_tmp) +4 ,2); \
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swab(((char *) x) +8, ((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) x) +10,((char *) _krb_swap_tmp) +0 ,2); \
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memcpy(x, _krb_swap_tmp, 12);\
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}
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#define swap_C_Block(x) {\
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u_int32_t _krb_swap_tmp[4];\
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swab(( char *) x, ((char *) _krb_swap_tmp) +6 ,2); \
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swab(((char *) x) +2,((char *) _krb_swap_tmp) +4 ,2); \
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swab(((char *) x) +4,((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) x) +6,((char *) _krb_swap_tmp) ,2); \
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memcpy(x, _krb_swap_tmp, 8);\
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}
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#define swap_u_quad(x) {\
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u_int32_t _krb_swap_tmp[4];\
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swab(( char *) &x, ((char *) _krb_swap_tmp) +6 ,2); \
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swab(((char *) &x) +2,((char *) _krb_swap_tmp) +4 ,2); \
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swab(((char *) &x) +4,((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) &x) +6,((char *) _krb_swap_tmp) ,2); \
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memcpy(x, _krb_swap_tmp, 8);\
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}
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#define swap_u_long(x) {\
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u_int32_t _krb_swap_tmp[4];\
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swab((char *) &x, ((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) &x) +2,((char *) _krb_swap_tmp),2); \
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x = _krb_swap_tmp[0]; \
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}
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#define swap_u_short(x) {\
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u_int16_t _krb_swap_sh_tmp; \
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swab((char *) &x, ( &_krb_swap_sh_tmp) ,2); \
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x = (u_int16_t) _krb_swap_sh_tmp; \
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}
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/* Kerberos ticket flag field bit definitions */
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#define K_FLAG_ORDER 0 /* bit 0 --> lsb */
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#define K_FLAG_1 /* reserved */
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#define K_FLAG_2 /* reserved */
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#define K_FLAG_3 /* reserved */
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#define K_FLAG_4 /* reserved */
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#define K_FLAG_5 /* reserved */
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#define K_FLAG_6 /* reserved */
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#define K_FLAG_7 /* reserved, bit 7 --> msb */
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#endif /* __KRB_ARCHAEOLOGY_H__ */
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