
/*
 * 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.
 */

#ifndef PROT_DEFS
#define PROT_DEFS

#define		KRB_PORT		750	/* PC's don't have /etc/services */
#define		KRB5_PORT		88	/* 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(); *//* removed 890221 */
																					   /* KTEXT create_death_packet(); *//* removed 890221 */
															      /* KTEXT pkt_cipher(); *//* removed 890221 */

/* 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 */
/* EXP errors are:   Principal expired, Service expired, Auth expired,
 * but are not currently used much */

#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
#define		KERB_ERR_MAXIMUM			10

#endif /* PROT_DEFS */
