source: trunk/third/cns/src/include/prot.h @ 8789

/*
 * prot.h
 *
 * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
 * of Technology.
 *
 * For copying and distribution information, please see the file
 * <mit-copyright.h>.
 *
 * Include file with authentication protocol information.
 */

#include "mit-copyright.h"

#include "krb_conf.h"

#ifndef PROT_DEFS
#define PROT_DEFS

#define         KRB_PORT                750     /* PC's don't have
                                                 * /etc/services */
#define         KRB_PROT_VERSION        4
#define         MAX_PKT_LEN             1000
#define         MAX_TXT_LEN             1000
#define         TICKET_GRANTING_TICKET  "krbtgt"

/* 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)))

/* Routines to create and read packets may be found in prot.c */

KTEXT create_auth_reply();
KTEXT create_death_packet();
char *pkt_cipher();

/* Message types , always leave lsb for byte order */

#define         AUTH_MSG_KDC_REQUEST                     1<<1
#define         AUTH_MSG_KDC_REPLY                       2<<1
#define         AUTH_MSG_APPL_REQUEST                    3<<1
#define         AUTH_MSG_APPL_REQUEST_MUTUAL             4<<1
#define         AUTH_MSG_ERR_REPLY                       5<<1
#define         AUTH_MSG_PRIVATE                         6<<1
#define         AUTH_MSG_SAFE                            7<<1
#define         AUTH_MSG_APPL_ERR                        8<<1
#define         AUTH_MSG_DIE                            63<<1

/* values for kerb error codes */

#define         KERB_ERR_OK                              0
#define         KERB_ERR_NAME_EXP                        1
#define         KERB_ERR_SERVICE_EXP                     2
#define         KERB_ERR_AUTH_EXP                        3
#define         KERB_ERR_PKT_VER                         4
#define         KERB_ERR_NAME_MAST_KEY_VER               5
#define         KERB_ERR_SERV_MAST_KEY_VER               6
#define         KERB_ERR_BYTE_ORDER                      7
#define         KERB_ERR_PRINCIPAL_UNKNOWN               8
#define         KERB_ERR_PRINCIPAL_NOT_UNIQUE            9
#define         KERB_ERR_NULL_KEY                       10
/* Cygnus extensions for Preauthentication */
#define         KERB_ERR_PREAUTH_SHORT                  11
#define         KERB_ERR_PREAUTH_MISMATCH               12

#endif /* PROT_DEFS */