MAJOR=4
MINOR=38
DEVNAME=tty38
  *   €l–дY>””Р;Ъ‚fг.\*bСїБѓq ?_†I|ҐЏ+БА 	    /*
 * Labeling interface for userspace object managers and others.
 *
 * Author : Eamon Walsh <ewalsh@tycho.nsa.gov>
 */
#ifndef _SELABEL_H_
#define _SELABEL_H_

#include <stdbool.h>
#include <stdint.h>
#include <sys/types.h>
#include <selinux/selinux.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Opaque type used for all label handles.
 */

struct selabel_handle;

/* 
 * Available backends.
 */

/* file contexts */
#define SELABEL_CTX_FILE	0
/* media contexts */
#define SELABEL_CTX_MEDIA	1
/* x contexts */
#define SELABEL_CTX_X		2
/* db objects */
#define SELABEL_CTX_DB		3
/* Android property service contexts */
#define SELABEL_CTX_ANDROID_PROP 4
/* Android service contexts */
#define SELABEL_CTX_ANDROID_SERVICE 5

/*
 * Available options
 */

/* no-op option, useful for unused slots in an array of options */
#define SELABEL_OPT_UNUSED	0
/* validate contexts before returning them (boolean value) */
#define SELABEL_OPT_VALIDATE	1
/* don't use local customizations to backend data (boolean value) */
#define SELABEL_OPT_BASEONLY	2
/* specify an alternate path to use when loading backend data */
#define SELABEL_OPT_PATH	3
/* select a subset of the search space as an optimization (file backend) */
#define SELABEL_OPT_SUBSET	4
/* require a hash calculation on spec files */
#define SELABEL_OPT_DIGEST	5
/* total number of options */
#define SELABEL_NOPT		6

/*
 * Label operations
 */

/**
 * selabel_open - Create a labeling handle.
 * @backend: one of the constants specifying a supported labeling backend.
 * @opts: array of selabel_opt structures specifying label options or NULL.
 * @nopts: number of elements in opts array or zero for no options.
 *
 * Open a labeling backend for use.  The available backend identifiers are
 * listed above.  Options may be provided via the opts parameter; available
 * options are listed above.  Not all options may be supported by every
 * backend.  Return value is the created handle on success or NULL with
 * @errno set on failure.
 */
extern struct selabel_handle *selabel_open(unsigned int backend,
					   const struct selinux_opt *opts,
					   unsigned nopts);

/**
 * selabel_close - Close a labeling handle.
 * @handle: specifies handle to close
 *
 * Destroy the specified handle, closing files, freeing allocated memory,
 * etc.  The handle may not be further used after it has been closed.
 */
extern void selabel_close(struct selabel_handle *handle);

/**
 * selabel_lookup - Perform labeling lookup operation.
 * @handle: specifies backend instance to query
 * @con: returns the appropriate context with which to label the object
 * @key: string input to lookup operation
 * @type: numeric input to the lookup operation
 *
 * Perform a labeling lookup operation.  Return %0 on success, -%1 with
 * @errno set on failure.  The key and type arguments are the inputs to the
 * lookup operation; appropriate values are dictated by the backend in use.
 * The result is returned in the memory pointed to by @con and must be freed
 * by the user with freecon().
 */
extern int selabel_lookup(struct selabel_handle *handle, char **con,
			  const char *key, int type);
extern int selabel_lookup_raw(struct selabel_handle *handle, char **con,
			      const char *key, int type);

extern bool selabel_partial_match(struct selabel_handle *handle, const char *key);

extern bool selabel_get_digests_all_partial_matches(struct selabel_handle *rec,
						    const char *key,
						    uint8_t **calculated_digest,
						    uint8_t **xattr_digest,
						    size_t *digest_len);
extern bool selabel_hash_all_partial_matches(struct selabel_handle *rec,
					     const char *key, uint8_t* digest);

extern int selabel_lookup_best_match(struct selabel_handle *rec, char **con,
				     const char *key, const char **aliases, int type);
extern int selabel_lookup_best_match_raw(struct selabel_handle *rec, char **con,
					 const char *key, const char **aliases, int type);

/**
 * selabel_digest - Retrieve the SHA256 digest and the list of spec