[mirror_ubuntu-kernels.git] / security / selinux / ss / policydb.h

/*
 * A policy database (policydb) specifies the
 * configuration data for the security policy.
 *
 * Author : Stephen Smalley, <sds@tycho.nsa.gov>
 */

/*
 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
 *
 *	Support for enhanced MLS infrastructure.
 *
 * Updated: Frank Mayer <mayerf@tresys.com> and Karl MacMillan <kmacmillan@tresys.com>
 *
 *	Added conditional policy language extensions
 *
 * Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
 * Copyright (C) 2003 - 2004 Tresys Technology, LLC
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation, version 2.
 */

#ifndef _SS_POLICYDB_H_
#define _SS_POLICYDB_H_

#include "symtab.h"
#include "avtab.h"
#include "sidtab.h"
#include "ebitmap.h"
#include "mls_types.h"
#include "context.h"
#include "constraint.h"

/*
 * A datum type is defined for each kind of symbol
 * in the configuration data:  individual permissions,
 * common prefixes for access vectors, classes,
 * users, roles, types, sensitivities, categories, etc.
 */

/* Permission attributes */
struct perm_datum {
	u32 value;		/* permission bit + 1 */
};

/* Attributes of a common prefix for access vectors */
struct common_datum {
	u32 value;			/* internal common value */
	struct symtab permissions;	/* common permissions */
};

/* Class attributes */
struct class_datum {
	u32 value;			/* class value */
	char *comkey;			/* common name */
	struct common_datum *comdatum;	/* common datum */
	struct symtab permissions;	/* class-specific permission symbol table */
	struct constraint_node *constraints;	/* constraints on class permissions */
	struct constraint_node *validatetrans;	/* special transition rules */
/* Options how a new object user, role, and type should be decided */
#define DEFAULT_SOURCE         1
#define DEFAULT_TARGET         2
	char default_user;
	char default_role;
	char default_type;
/* Options how a new object range should be decided */
#define DEFAULT_SOURCE_LOW     1
#define DEFAULT_SOURCE_HIGH    2
#define DEFAULT_SOURCE_LOW_HIGH        3
#define DEFAULT_TARGET_LOW     4
#define DEFAULT_TARGET_HIGH    5
#define DEFAULT_TARGET_LOW_HIGH        6
	char default_range;
};

/* Role attributes */
struct role_datum {
	u32 value;			/* internal role value */
	u32 bounds;			/* boundary of role */
	struct ebitmap dominates;	/* set of roles dominated by this role */
	struct ebitmap types;		/* set of authorized types for role */
};

struct role_trans {
	u32 role;		/* current role */
	u32 type;		/* program executable type, or new object type */
	u32 tclass;		/* process class, or new object class */
	u32 new_role;		/* new role */
	struct role_trans *next;
};

struct filename_trans {
	u32 stype;		/* current process */
	u32 ttype;		/* parent dir context */
	u16 tclass;		/* class of new object */
	const char *name;	/* last path component */
};

struct filename_trans_datum {
	u32 otype;		/* expected of new object */
};

struct role_allow {
	u32 role;		/* current role */
	u32 new_role;		/* new role */
	struct role_allow *next;
};

/* Type attributes */
struct type_datum {
	u32 value;		/* internal type value */
	u32 bounds;		/* boundary of type */
	unsigned char primary;	/* primary name? */
	unsigned char attribute;/* attribute ?*/
};

/* User attributes */
struct user_datum {
	u32 value;			/* internal user value */
	u32 bounds;			/* bounds of user */
	struct ebitmap roles;		/* set of authorized roles for user */
	struct mls_range range;		/* MLS range (min - max) for user */
	struct mls_level dfltlevel;	/* default login MLS level for user */
};


/* Sensitivity attributes */
struct level_datum {
	struct mls_level *level;	/* sensitivity and associated categories */
	unsigned char isalias;	/* is this sensitivity an alias for another? */
};

/* Category attributes */
struct cat_datum {
	u32 value;		/* internal category bit + 1 */
	unsigned char isalias;  /* is this category an alias for another? */
};

struct range_trans {
	u32 source_type;
	u32 target_type;
	u32 target_class;
};

/* Boolean data type */
struct cond_bool_datum {
	__u32 value;		/* internal type value */
	int state;
};

struct cond_node;

/*
 * type set preserves data needed to determine constraint info from
 * policy source. This is not used by the kernel policy but allows
 * utilities such as audit2allow to determine constraint denials.
 */
struct type_set {
	struct ebitmap types;
	struct ebitmap negset;
	u32 flags;
};

/*
 * The configuration data includes security contexts for
 * initial SIDs, unlabeled file systems, TCP and UDP port numbers,
 * network interfaces, and nodes.  This structure stores the
 * relevant data for one such entry.  Entries of the same kind
 * (e.g. all initial SIDs) are linked together into a list.
 */
struct ocontext {
	union {
		char *name;	/* name of initial SID, fs, netif, fstype, path */
		struct {
			u8 protocol;
			u16 low_port;
			u16 high_port;
		} port;		/* TCP or UDP port information */
		struct {
			u32 addr;
			u32 mask;
		} node;		/* node information */
		struct {
			u32 addr[4];
			u32 mask[4];
		} node6;        /* IPv6 node information */
		struct {
			u64 subnet_prefix;
			u16 low_pkey;
			u16 high_pkey;
		} ibpkey;
		struct {
			char *dev_name;
			u8 port;
		} ibendport;
	} u;
	union {
		u32 sclass;  /* security class for genfs */
		u32 behavior;  /* labeling behavior for fs_use */
	} v;
	struct context context[2];	/* security context(s) */
	u32 sid[2];	/* SID(s) */
	struct ocontext *next;
};

struct genfs {
	char *fstype;
	struct ocontext *head;
	struct genfs *next;
};

/* symbol table array indices */
#define SYM_COMMONS 0
#define SYM_CLASSES 1
#define SYM_ROLES   2
#define SYM_TYPES   3
#define SYM_USERS   4
#define SYM_BOOLS   5
#define SYM_LEVELS  6
#define SYM_CATS    7
#define SYM_NUM     8

/* object context array indices */
#define OCON_ISID	0 /* initial SIDs */
#define OCON_FS		1 /* unlabeled file systems */
#define OCON_PORT	2 /* TCP and UDP port numbers */
#define OCON_NETIF	3 /* network interfaces */
#define OCON_NODE	4 /* nodes */
#define OCON_FSUSE	5 /* fs_use */
#define OCON_NODE6	6 /* IPv6 nodes */
#define OCON_IBPKEY	7 /* Infiniband PKeys */
#define OCON_IBENDPORT	8 /* Infiniband end ports */
#define OCON_NUM	9

/* The policy database */
struct policydb {
	int mls_enabled;

	/* symbol tables */
	struct symtab symtab[SYM_NUM];
#define p_commons symtab[SYM_COMMONS]
#define p_classes symtab[SYM_CLASSES]
#define p_roles symtab[SYM_ROLES]
#define p_types symtab[SYM_TYPES]
#define p_users symtab[SYM_USERS]
#define p_bools symtab[SYM_BOOLS]
#define p_levels symtab[SYM_LEVELS]
#define p_cats symtab[SYM_CATS]

	/* symbol names indexed by (value - 1) */
	char		**sym_val_to_name[SYM_NUM];

	/* class, role, and user attributes indexed by (value - 1) */
	struct class_datum **class_val_to_struct;
	struct role_datum **role_val_to_struct;
	struct user_datum **user_val_to_struct;
	struct type_datum **type_val_to_struct_array;

	/* type enforcement access vectors and transitions */
	struct avtab te_avtab;

	/* role transitions */
	struct role_trans *role_tr;

	/* file transitions with the last path component */
	/* quickly exclude lookups when parent ttype has no rules */
	struct ebitmap filename_trans_ttypes;
	/* actual set of filename_trans rules */
	struct hashtab *filename_trans;

	/* bools indexed by (value - 1) */
	struct cond_bool_datum **bool_val_to_struct;
	/* type enforcement conditional access vectors and transitions */
	struct avtab te_cond_avtab;
	/* linked list indexing te_cond_avtab by conditional */
	struct cond_node *cond_list;

	/* role allows */
	struct role_allow *role_allow;

	/* security contexts of initial SIDs, unlabeled file systems,
	   TCP or UDP port numbers, network interfaces and nodes */
	struct ocontext *ocontexts[OCON_NUM];

	/* security contexts for files in filesystems that cannot support
	   a persistent label mapping or use another
	   fixed labeling behavior. */
	struct genfs *genfs;

	/* range transitions table (range_trans_key -> mls_range) */
	struct hashtab *range_tr;

	/* type -> attribute reverse mapping */
	struct ebitmap *type_attr_map_array;

	struct ebitmap policycaps;

	struct ebitmap permissive_map;

	/* length of this policy when it was loaded */
	size_t len;

	unsigned int policyvers;

	unsigned int reject_unknown : 1;
	unsigned int allow_unknown : 1;

	u16 process_class;
	u32 process_trans_perms;
};

extern void policydb_destroy(struct policydb *p);
extern int policydb_load_isids(struct policydb *p, struct sidtab *s);
extern int policydb_context_isvalid(struct policydb *p, struct context *c);
extern int policydb_class_isvalid(struct policydb *p, unsigned int class);
extern int policydb_type_isvalid(struct policydb *p, unsigned int type);
extern int policydb_role_isvalid(struct policydb *p, unsigned int role);
extern int policydb_read(struct policydb *p, void *fp);
extern int policydb_write(struct policydb *p, void *fp);

#define PERM_SYMTAB_SIZE 32

#define POLICYDB_CONFIG_MLS    1

/* the config flags related to unknown classes/perms are bits 2 and 3 */
#define REJECT_UNKNOWN	0x00000002
#define ALLOW_UNKNOWN	0x00000004

#define OBJECT_R "object_r"
#define OBJECT_R_VAL 1

#define POLICYDB_MAGIC SELINUX_MAGIC
#define POLICYDB_STRING "SE Linux"

struct policy_file {
	char *data;
	size_t len;
};

struct policy_data {
	struct policydb *p;
	void *fp;
};

static inline int next_entry(void *buf, struct policy_file *fp, size_t bytes)
{
	if (bytes > fp->len)
		return -EINVAL;

	memcpy(buf, fp->data, bytes);
	fp->data += bytes;
	fp->len -= bytes;
	return 0;
}

static inline int put_entry(const void *buf, size_t bytes, int num, struct policy_file *fp)
{
	size_t len = bytes * num;

	memcpy(fp->data, buf, len);
	fp->data += len;
	fp->len -= len;

	return 0;
}

static inline char *sym_name(struct policydb *p, unsigned int sym_num, unsigned int element_nr)
{
	return p->sym_val_to_name[sym_num][element_nr];
}

extern u16 string_to_security_class(struct policydb *p, const char *name);
extern u32 string_to_av_perm(struct policydb *p, u16 tclass, const char *name);

#endif	/* _SS_POLICYDB_H_ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* A policy database (policydb) specifies the
	3	* configuration data for the security policy.
	4	*
7efbb60b	5	* Author : Stephen Smalley, <sds@tycho.nsa.gov>
1da177e4 LT	6	*/
	7
	8	/*
	9	* Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
	10	*
	11	* Support for enhanced MLS infrastructure.
	12	*
	13	* Updated: Frank Mayer <mayerf@tresys.com> and Karl MacMillan <kmacmillan@tresys.com>
	14	*
489a5fd7	15	* Added conditional policy language extensions
1da177e4 LT	16	*
	17	* Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
	18	* Copyright (C) 2003 - 2004 Tresys Technology, LLC
	19	* This program is free software; you can redistribute it and/or modify
489a5fd7	20	* it under the terms of the GNU General Public License as published by
1da177e4 LT	21	* the Free Software Foundation, version 2.
	22	*/
	23
	24	#ifndef _SS_POLICYDB_H_
	25	#define _SS_POLICYDB_H_
	26
	27	#include "symtab.h"
	28	#include "avtab.h"
	29	#include "sidtab.h"
0719aaf5 GT	30	#include "ebitmap.h"
0719aaf5 GT	31	#include "mls_types.h"
1da177e4 LT	32	#include "context.h"
	33	#include "constraint.h"
	34
	35	/*
	36	* A datum type is defined for each kind of symbol
	37	* in the configuration data: individual permissions,
	38	* common prefixes for access vectors, classes,
	39	* users, roles, types, sensitivities, categories, etc.
	40	*/
	41
	42	/* Permission attributes */
	43	struct perm_datum {
	44	u32 value; /* permission bit + 1 */
	45	};
	46
	47	/* Attributes of a common prefix for access vectors */
	48	struct common_datum {
	49	u32 value; /* internal common value */
	50	struct symtab permissions; /* common permissions */
	51	};
	52
	53	/* Class attributes */
	54	struct class_datum {
	55	u32 value; /* class value */
	56	char comkey; / common name */
	57	struct common_datum comdatum; / common datum */
	58	struct symtab permissions; /* class-specific permission symbol table */
	59	struct constraint_node constraints; / constraints on class permissions */
	60	struct constraint_node validatetrans; / special transition rules */
eed7795d	61	/* Options how a new object user, role, and type should be decided */
aa893269 EP	62	#define DEFAULT_SOURCE 1
	63	#define DEFAULT_TARGET 2
	64	char default_user;
	65	char default_role;
eed7795d	66	char default_type;
aa893269 EP	67	/* Options how a new object range should be decided */
	68	#define DEFAULT_SOURCE_LOW 1
	69	#define DEFAULT_SOURCE_HIGH 2
	70	#define DEFAULT_SOURCE_LOW_HIGH 3
	71	#define DEFAULT_TARGET_LOW 4
	72	#define DEFAULT_TARGET_HIGH 5
	73	#define DEFAULT_TARGET_LOW_HIGH 6
	74	char default_range;
1da177e4 LT	75	};
	76
	77	/* Role attributes */
	78	struct role_datum {
	79	u32 value; /* internal role value */
d9250dea	80	u32 bounds; /* boundary of role */
1da177e4 LT	81	struct ebitmap dominates; /* set of roles dominated by this role */
	82	struct ebitmap types; /* set of authorized types for role */
	83	};
	84
	85	struct role_trans {
	86	u32 role; /* current role */
8023976c HC	87	u32 type; /* program executable type, or new object type */
8023976c HC	88	u32 tclass; /* process class, or new object class */
1da177e4 LT	89	u32 new_role; /* new role */
	90	struct role_trans *next;
	91	};
	92
652bb9b0	93	struct filename_trans {
652bb9b0 EP	94	u32 stype; /* current process */
	95	u32 ttype; /* parent dir context */
	96	u16 tclass; /* class of new object */
	97	const char name; / last path component */
2463c26d EP	98	};
	99
	100	struct filename_trans_datum {
652bb9b0 EP	101	u32 otype; /* expected of new object */
	102	};
	103
1da177e4 LT	104	struct role_allow {
	105	u32 role; /* current role */
	106	u32 new_role; /* new role */
	107	struct role_allow *next;
	108	};
	109
	110	/* Type attributes */
	111	struct type_datum {
	112	u32 value; /* internal type value */
d9250dea	113	u32 bounds; /* boundary of type */
1da177e4	114	unsigned char primary; /* primary name? */
d9250dea	115	unsigned char attribute;/* attribute ?*/
1da177e4 LT	116	};
	117
	118	/* User attributes */
	119	struct user_datum {
	120	u32 value; /* internal user value */
d9250dea	121	u32 bounds; /* bounds of user */
1da177e4 LT	122	struct ebitmap roles; /* set of authorized roles for user */
	123	struct mls_range range; /* MLS range (min - max) for user */
	124	struct mls_level dfltlevel; /* default login MLS level for user */
	125	};
	126
	127
	128	/* Sensitivity attributes */
	129	struct level_datum {
	130	struct mls_level level; / sensitivity and associated categories */
	131	unsigned char isalias; /* is this sensitivity an alias for another? */
	132	};
	133
	134	/* Category attributes */
	135	struct cat_datum {
	136	u32 value; /* internal category bit + 1 */
	137	unsigned char isalias; /* is this category an alias for another? */
	138	};
	139
	140	struct range_trans {
f3f87714 DG	141	u32 source_type;
	142	u32 target_type;
	143	u32 target_class;
1da177e4 LT	144	};
	145
	146	/* Boolean data type */
	147	struct cond_bool_datum {
	148	__u32 value; /* internal type value */
	149	int state;
	150	};
	151
	152	struct cond_node;
	153
a660bec1 RH	154	/*
	155	* type set preserves data needed to determine constraint info from
	156	* policy source. This is not used by the kernel policy but allows
	157	* utilities such as audit2allow to determine constraint denials.
	158	*/
	159	struct type_set {
	160	struct ebitmap types;
	161	struct ebitmap negset;
	162	u32 flags;
	163	};
	164
1da177e4 LT	165	/*
	166	* The configuration data includes security contexts for
	167	* initial SIDs, unlabeled file systems, TCP and UDP port numbers,
	168	* network interfaces, and nodes. This structure stores the
	169	* relevant data for one such entry. Entries of the same kind
	170	* (e.g. all initial SIDs) are linked together into a list.
	171	*/
	172	struct ocontext {
	173	union {
	174	char name; / name of initial SID, fs, netif, fstype, path */
	175	struct {
	176	u8 protocol;
	177	u16 low_port;
	178	u16 high_port;
	179	} port; /* TCP or UDP port information */
	180	struct {
	181	u32 addr;
	182	u32 mask;
	183	} node; /* node information */
	184	struct {
	185	u32 addr[4];
	186	u32 mask[4];
	187	} node6; /* IPv6 node information */
a806f7a1 DJ	188	struct {
	189	u64 subnet_prefix;
	190	u16 low_pkey;
	191	u16 high_pkey;
	192	} ibpkey;
	193	struct {
	194	char *dev_name;
	195	u8 port;
	196	} ibendport;
1da177e4 LT	197	} u;
	198	union {
	199	u32 sclass; /* security class for genfs */
	200	u32 behavior; /* labeling behavior for fs_use */
	201	} v;
	202	struct context context[2]; /* security context(s) */
	203	u32 sid[2]; /* SID(s) */
	204	struct ocontext *next;
	205	};
	206
	207	struct genfs {
	208	char *fstype;
	209	struct ocontext *head;
	210	struct genfs *next;
	211	};
	212
	213	/* symbol table array indices */
	214	#define SYM_COMMONS 0
	215	#define SYM_CLASSES 1
	216	#define SYM_ROLES 2
	217	#define SYM_TYPES 3
	218	#define SYM_USERS 4
	219	#define SYM_BOOLS 5
	220	#define SYM_LEVELS 6
	221	#define SYM_CATS 7
	222	#define SYM_NUM 8
	223
	224	/* object context array indices */
a806f7a1 DJ	225	#define OCON_ISID 0 /* initial SIDs */
	226	#define OCON_FS 1 /* unlabeled file systems */
	227	#define OCON_PORT 2 /* TCP and UDP port numbers */
	228	#define OCON_NETIF 3 /* network interfaces */
	229	#define OCON_NODE 4 /* nodes */
	230	#define OCON_FSUSE 5 /* fs_use */
	231	#define OCON_NODE6 6 /* IPv6 nodes */
	232	#define OCON_IBPKEY 7 /* Infiniband PKeys */
	233	#define OCON_IBENDPORT 8 /* Infiniband end ports */
	234	#define OCON_NUM 9
1da177e4 LT	235
	236	/* The policy database */
	237	struct policydb {
0719aaf5 GT	238	int mls_enabled;
0719aaf5 GT	239
1da177e4 LT	240	/* symbol tables */
	241	struct symtab symtab[SYM_NUM];
	242	#define p_commons symtab[SYM_COMMONS]
	243	#define p_classes symtab[SYM_CLASSES]
	244	#define p_roles symtab[SYM_ROLES]
	245	#define p_types symtab[SYM_TYPES]
	246	#define p_users symtab[SYM_USERS]
	247	#define p_bools symtab[SYM_BOOLS]
	248	#define p_levels symtab[SYM_LEVELS]
	249	#define p_cats symtab[SYM_CATS]
	250
	251	/* symbol names indexed by (value - 1) */
acdf52d9	252	char **sym_val_to_name[SYM_NUM];
1da177e4 LT	253
	254	/* class, role, and user attributes indexed by (value - 1) */
	255	struct class_datum **class_val_to_struct;
	256	struct role_datum **role_val_to_struct;
	257	struct user_datum **user_val_to_struct;
acdf52d9	258	struct type_datum **type_val_to_struct_array;
1da177e4 LT	259
	260	/* type enforcement access vectors and transitions */
	261	struct avtab te_avtab;
	262
	263	/* role transitions */
	264	struct role_trans *role_tr;
	265
2463c26d	266	/* file transitions with the last path component */
03a4c018 EP	267	/* quickly exclude lookups when parent ttype has no rules */
03a4c018 EP	268	struct ebitmap filename_trans_ttypes;
2463c26d EP	269	/* actual set of filename_trans rules */
2463c26d EP	270	struct hashtab *filename_trans;
652bb9b0	271
1da177e4 LT	272	/* bools indexed by (value - 1) */
	273	struct cond_bool_datum **bool_val_to_struct;
	274	/* type enforcement conditional access vectors and transitions */
	275	struct avtab te_cond_avtab;
	276	/* linked list indexing te_cond_avtab by conditional */
489a5fd7	277	struct cond_node *cond_list;
1da177e4 LT	278
	279	/* role allows */
	280	struct role_allow *role_allow;
	281
	282	/* security contexts of initial SIDs, unlabeled file systems,
	283	TCP or UDP port numbers, network interfaces and nodes */
	284	struct ocontext *ocontexts[OCON_NUM];
	285
489a5fd7	286	/* security contexts for files in filesystems that cannot support
1da177e4 LT	287	a persistent label mapping or use another
1da177e4 LT	288	fixed labeling behavior. */
489a5fd7	289	struct genfs *genfs;
1da177e4	290
2f3e82d6 SS	291	/* range transitions table (range_trans_key -> mls_range) */
2f3e82d6 SS	292	struct hashtab *range_tr;
1da177e4	293
782ebb99	294	/* type -> attribute reverse mapping */
acdf52d9	295	struct ebitmap *type_attr_map_array;
782ebb99	296
3bb56b25 PM	297	struct ebitmap policycaps;
3bb56b25 PM	298
64dbf074 EP	299	struct ebitmap permissive_map;
64dbf074 EP	300
cee74f47 EP	301	/* length of this policy when it was loaded */
	302	size_t len;
	303
1da177e4	304	unsigned int policyvers;
3f12070e EP	305
	306	unsigned int reject_unknown : 1;
	307	unsigned int allow_unknown : 1;
c6d3aaa4 SS	308
	309	u16 process_class;
	310	u32 process_trans_perms;
1da177e4 LT	311	};
	312
	313	extern void policydb_destroy(struct policydb *p);
	314	extern int policydb_load_isids(struct policydb p, struct sidtab s);
	315	extern int policydb_context_isvalid(struct policydb p, struct context c);
45e5421e SS	316	extern int policydb_class_isvalid(struct policydb *p, unsigned int class);
	317	extern int policydb_type_isvalid(struct policydb *p, unsigned int type);
	318	extern int policydb_role_isvalid(struct policydb *p, unsigned int role);
1da177e4	319	extern int policydb_read(struct policydb p, void fp);
cee74f47	320	extern int policydb_write(struct policydb p, void fp);
1da177e4 LT	321
	322	#define PERM_SYMTAB_SIZE 32
	323
	324	#define POLICYDB_CONFIG_MLS 1
	325
3f12070e EP	326	/* the config flags related to unknown classes/perms are bits 2 and 3 */
	327	#define REJECT_UNKNOWN 0x00000002
	328	#define ALLOW_UNKNOWN 0x00000004
	329
1da177e4 LT	330	#define OBJECT_R "object_r"
	331	#define OBJECT_R_VAL 1
	332
	333	#define POLICYDB_MAGIC SELINUX_MAGIC
	334	#define POLICYDB_STRING "SE Linux"
	335
	336	struct policy_file {
	337	char *data;
	338	size_t len;
	339	};
	340
cee74f47 EP	341	struct policy_data {
	342	struct policydb *p;
	343	void *fp;
	344	};
	345
1da177e4 LT	346	static inline int next_entry(void buf, struct policy_file fp, size_t bytes)
	347	{
	348	if (bytes > fp->len)
	349	return -EINVAL;
	350
	351	memcpy(buf, fp->data, bytes);
	352	fp->data += bytes;
	353	fp->len -= bytes;
	354	return 0;
	355	}
	356
652bb9b0	357	static inline int put_entry(const void buf, size_t bytes, int num, struct policy_file fp)
cee74f47 EP	358	{
	359	size_t len = bytes * num;
	360
	361	memcpy(fp->data, buf, len);
	362	fp->data += len;
	363	fp->len -= len;
	364
	365	return 0;
	366	}
	367
ac76c05b EP	368	static inline char sym_name(struct policydb p, unsigned int sym_num, unsigned int element_nr)
ac76c05b EP	369	{
acdf52d9	370	return p->sym_val_to_name[sym_num][element_nr];
ac76c05b EP	371	}
ac76c05b EP	372
c6d3aaa4 SS	373	extern u16 string_to_security_class(struct policydb p, const char name);
	374	extern u32 string_to_av_perm(struct policydb p, u16 tclass, const char name);
	375
1da177e4 LT	376	#endif /* _SS_POLICYDB_H_ */
1da177e4 LT	377