privdayz.com speacial mini anti bypass shell

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File Name : constraint.h

/* Author : Stephen Smalley, <sds@epoch.ncsc.mil> */

/* FLASK */

/*
 * A constraint is a condition that must be satisfied in
 * order for one or more permissions to be granted.  
 * Constraints are used to impose additional restrictions
 * beyond the type-based rules in `te' or the role-based
 * transition rules in `rbac'.  Constraints are typically
 * used to prevent a process from transitioning to a new user 
 * identity or role unless it is in a privileged type.
 * Constraints are likewise typically used to prevent a
 * process from labeling an object with a different user
 * identity.   
 */

#ifndef _SEPOL_POLICYDB_CONSTRAINT_H_
#define _SEPOL_POLICYDB_CONSTRAINT_H_

#include <sepol/policydb/policydb.h>
#include <sepol/policydb/ebitmap.h>
#include <sepol/policydb/flask_types.h>

__BEGIN_DECLS

#define CEXPR_MAXDEPTH 5

struct type_set;

typedef struct constraint_expr {
#define CEXPR_NOT		1	/* not expr */
#define CEXPR_AND		2	/* expr and expr */
#define CEXPR_OR		3	/* expr or expr */
#define CEXPR_ATTR		4	/* attr op attr */
#define CEXPR_NAMES		5	/* attr op names */
	uint32_t expr_type;	/* expression type */

#define CEXPR_USER 1		/* user */
#define CEXPR_ROLE 2		/* role */
#define CEXPR_TYPE 4		/* type */
#define CEXPR_TARGET 8		/* target if set, source otherwise */
#define CEXPR_XTARGET 16	/* special 3rd target for validatetrans rule */
#define CEXPR_L1L2 32		/* low level 1 vs. low level 2 */
#define CEXPR_L1H2 64		/* low level 1 vs. high level 2 */
#define CEXPR_H1L2 128		/* high level 1 vs. low level 2 */
#define CEXPR_H1H2 256		/* high level 1 vs. high level 2 */
#define CEXPR_L1H1 512		/* low level 1 vs. high level 1 */
#define CEXPR_L2H2 1024		/* low level 2 vs. high level 2 */
	uint32_t attr;		/* attribute */

#define CEXPR_EQ     1		/* == or eq */
#define CEXPR_NEQ    2		/* != */
#define CEXPR_DOM    3		/* dom */
#define CEXPR_DOMBY  4		/* domby  */
#define CEXPR_INCOMP 5		/* incomp */
	uint32_t op;		/* operator */

ebitmap_t names;	/* names */
	struct type_set *type_names;

struct constraint_expr *next;	/* next expression */
} constraint_expr_t;

typedef struct constraint_node {
	sepol_access_vector_t permissions;	/* constrained permissions */
	constraint_expr_t *expr;	/* constraint on permissions */
	struct constraint_node *next;	/* next constraint */
} constraint_node_t;

struct policydb;

extern int constraint_expr_init(constraint_expr_t * expr);
extern void constraint_expr_destroy(constraint_expr_t * expr);

__END_DECLS
#endif				/* _CONSTRAINT_H_ */

/* FLASK */

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Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2023-02-17 06:22:09
..	dir	-	root/root	0755	2023-02-17 06:22:09
avrule_block.h	text/x-c	1.58 KB	root/root	0644	2018-10-30 09:36:14
avtab.h	text/x-c	4.61 KB	root/root	0644	2018-10-30 09:36:14
conditional.h	text/x-c	4.6 KB	root/root	0644	2018-10-30 09:36:14
constraint.h	text/x-c	2.47 KB	root/root	0644	2018-10-30 09:36:14
context.h	text/x-c	2.19 KB	root/root	0644	2018-10-30 09:36:14
ebitmap.h	text/x-c	3.08 KB	root/root	0644	2018-10-30 09:36:14
expand.h	text/x-c	3.55 KB	root/root	0644	2018-10-30 09:36:14
flask.h	text/x-c	4.88 KB	root/root	0644	2018-10-30 09:36:14
flask_types.h	text/x-c	1.72 KB	root/root	0644	2018-10-30 09:36:14
hashtab.h	text/x-c	4.18 KB	root/root	0644	2018-10-30 09:36:14
hierarchy.h	text/x-c	1.76 KB	root/root	0644	2018-10-30 09:36:14
link.h	text/x-c	498 B	root/root	0644	2018-10-30 09:36:14
mls_types.h	text/x-c	4.26 KB	root/root	0644	2018-10-30 09:36:14
module.h	text/x-c	1.48 KB	root/root	0644	2018-10-30 09:36:14
polcaps.h	text/x-c	694 B	root/root	0644	2018-10-30 09:36:14
policydb.h	text/x-c	24.91 KB	root/root	0644	2018-10-30 09:36:14
services.h	text/x-c	8.32 KB	root/root	0644	2018-10-30 09:36:14
sidtab.h	text/x-c	1.91 KB	root/root	0644	2018-10-30 09:36:14
symtab.h	text/x-c	1.06 KB	root/root	0644	2018-10-30 09:36:14
util.h	text/x-c	1.41 KB	root/root	0644	2018-10-30 09:36:14