*
* Updated: Frank Mayer <mayerf@tresys.com> and Karl MacMillan <kmacmillan@tresys.com>
*
- * Added conditional policy language extensions
+ * 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
+ * it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2.
*/
#include "symtab.h"
#include "avtab.h"
#include "sidtab.h"
+#include "ebitmap.h"
+#include "mls_types.h"
#include "context.h"
#include "constraint.h"
/* 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 */
};
/* 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 */
};
struct range_trans {
- u32 dom; /* current process domain */
- u32 type; /* program executable type */
- struct mls_range range; /* new range */
- struct range_trans *next;
+ u32 source_type;
+ u32 target_type;
+ u32 target_class;
};
/* Boolean data type */
/* The policy database */
struct policydb {
+ int mls_enabled;
+
/* symbol tables */
struct symtab symtab[SYM_NUM];
#define p_commons symtab[SYM_COMMONS]
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;
/* type enforcement access vectors and transitions */
struct avtab te_avtab;
/* 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;
+ struct cond_node *cond_list;
/* role allows */
struct role_allow *role_allow;
TCP or UDP port numbers, network interfaces and nodes */
struct ocontext *ocontexts[OCON_NUM];
- /* security contexts for files in filesystems that cannot support
+ /* security contexts for files in filesystems that cannot support
a persistent label mapping or use another
fixed labeling behavior. */
- struct genfs *genfs;
+ struct genfs *genfs;
- /* range transitions */
- struct range_trans *range_tr;
+ /* range transitions table (range_trans_key -> mls_range) */
+ struct hashtab *range_tr;
/* type -> attribute reverse mapping */
struct ebitmap *type_attr_map;
+ struct ebitmap policycaps;
+
+ struct ebitmap permissive_map;
+
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);
#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
return 0;
}
+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_ */