/* <clsdef.h>
 *
 *	Security classification mask block.
 */
#ifndef _CLSDEF_H
#define _CLSDEF_H
/*
   Contains security and integrity level and categories for
   non-discretionary access controls.
 */

/* class block type identifiers */
#define CLS$K_MIN_SEC_LEV	0	/* minimum secrecy level */
#define CLS$K_MIN_INT_LEV	0	/* minimum integrity level */
#define CLS$K_MAX_SEC_LEV	255	/* maximum secrecy level */
#define CLS$K_MAX_INT_LEV	255	/* maximum integrity level */
#define CLS$K_MIN_SEC_CAT	1	/* minimum secrecy category */
#define CLS$K_MIN_INT_CAT	1	/* minimum integrity category */
#define CLS$K_MAX_SEC_CAT_S64I64 64	/* maximum type 0 secrecy category */
#define CLS$K_MAX_INT_CAT_S64I64 64	/* maximum type 0 integrity category */
#define CLS$K_MAX_SEC_CAT_s128	128	/* maximum type 1 secrecy category */
#define CLS$K_TYP_S64I64	0	/* type 0 class block identifier */
#define CLS$K_TYP_S128		1	/* type 1 class block identifier */
#define CLS$K_LENGTH_S64I64	20	/* size of type 0 class block */
#define CLS$K_LENGTH_S128	20	/* size of type 1 class block */
#define CLS$K_LENGTH		20	/* length of structure */

#ifndef NO_VMS_V6
union clsdef {
    struct {
	unsigned char cls$b_sec_lev;	/* secrecy level */
	unsigned char cls$b_int_lev;	/* integrity level */
	unsigned char cls$b_type;	/* class block type */
	char cls$b_rsvd;		/* reserved */
	union {			/* type dependent overlays/extensions */
	    struct {		/* type 0 class block fields */
		unsigned int cls$q_sec_cat_s64i64[2]; /* secrecy category mask */
		unsigned int cls$q_int_cat_s64i64[2]; /* integrity category mask */
	    } cls$r_clsdef_s64i64;
	    struct {		/* type 1 class block fields */
		unsigned int cls$o_sec_cat_s128[4]; /* secrecy category mask */
	    } cls$r_clsdef_s128;
	    struct {		/* type 0 class block fields */
		unsigned int cls$q_sec_cat_0[2]; /*  secrecy category mask  - usage of cls$q_sec_cat_s64i64 preferred */
		unsigned int cls$q_int_cat_0[2]; /*  integrity category mask - usage of cls$q_int_cat_s64i64 preferred */
	    } cls$r_clsdef_0;
	    struct {		/* type 1 class block fields */
		unsigned int cls$o_sec_cat_1[4]; /*  secrecy category mask - usage of cls$o_sec_cat_s128 preferred */
	    } cls$r_clsdef_1;
	} cls$r_clsdef_x;
    } cls$r_sevms_defs;
/*
   The following definitions have been superseded and are being retained
   for backwards compatibility only.
   Usage of the ..._S64I64 and ..._S128 symbolic names is preferred.
 */
    struct {
	unsigned char cls$b_secur_lev;	/* security level */
	unsigned char cls$b_integ_lev;	/* integrity level */
	unsigned    : 16;		/* short fill; reserved */
	int cls$q_secur_cat[2];		/* security category mask */
	int cls$q_integ_cat[2];		/* integrity category mask */
    } cls$r_vms_defs;
};
#else
struct clsdef {
    unsigned char cls$b_secur_lev;	/* security level */
    unsigned char cls$b_integ_lev;	/* integrity level */
    unsigned	: 16;			/* short fill; reserved */
    int cls$q_secur_cat[2];		/* security category mask */
    int cls$q_integ_cat[2];		/* integrity category mask */
};
#endif

/* CHANGE_CLASS, PARSE_CLASS, FORMAT_CLASS system service item codes */
#define CLS$_SECSTR	1	/* textual secrecy/security string */
#define CLS$_INTSTR	2	/* textual integrity string */
#define CLS$_CLSBLK	3	/* simple classification block */
#define CLS$_MINCLSBLK	4	/* minimum classification block */
#define CLS$_MAXCLSBLK	5	/* maximum classification block */
#define CLS$_WIDTH	6	/* width of display for $FORMAT_CLASS */
#define CLS$_TRMDSC	7	/* line terminator for $FORMAT_CLASS */
#define CLS$_INDENT	8	/* line indenting for $FORMAT_CLASS */
#define CLS$_OLDCLSBLK	9	/* previous classification block */
#define CLS$_OLDMINCLS 10	/* previous minimum class block */
#define CLS$_OLDMAXCLS 11	/* previous maximum class block */
#define CLS$_TRANQUIL  12	/* override tranquility checks - usage reserved to Digital */

#endif	/*_CLSDEF_H*/