diff options
Diffstat (limited to 'ANDROID_3.4.5/security/selinux/ss/avtab.h')
-rw-r--r-- | ANDROID_3.4.5/security/selinux/ss/avtab.h | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/ANDROID_3.4.5/security/selinux/ss/avtab.h b/ANDROID_3.4.5/security/selinux/ss/avtab.h deleted file mode 100644 index 63ce2f9e..00000000 --- a/ANDROID_3.4.5/security/selinux/ss/avtab.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * An access vector table (avtab) is a hash table - * of access vectors and transition types indexed - * by a type pair and a class. An access vector - * table is used to represent the type enforcement - * tables. - * - * Author : Stephen Smalley, <sds@epoch.ncsc.mil> - */ - -/* Updated: Frank Mayer <mayerf@tresys.com> and Karl MacMillan <kmacmillan@tresys.com> - * - * Added conditional policy language extensions - * - * Copyright (C) 2003 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. - * - * Updated: Yuichi Nakamura <ynakam@hitachisoft.jp> - * Tuned number of hash slots for avtab to reduce memory usage - */ -#ifndef _SS_AVTAB_H_ -#define _SS_AVTAB_H_ - -struct avtab_key { - u16 source_type; /* source type */ - u16 target_type; /* target type */ - u16 target_class; /* target object class */ -#define AVTAB_ALLOWED 0x0001 -#define AVTAB_AUDITALLOW 0x0002 -#define AVTAB_AUDITDENY 0x0004 -#define AVTAB_AV (AVTAB_ALLOWED | AVTAB_AUDITALLOW | AVTAB_AUDITDENY) -#define AVTAB_TRANSITION 0x0010 -#define AVTAB_MEMBER 0x0020 -#define AVTAB_CHANGE 0x0040 -#define AVTAB_TYPE (AVTAB_TRANSITION | AVTAB_MEMBER | AVTAB_CHANGE) -#define AVTAB_ENABLED_OLD 0x80000000 /* reserved for used in cond_avtab */ -#define AVTAB_ENABLED 0x8000 /* reserved for used in cond_avtab */ - u16 specified; /* what field is specified */ -}; - -struct avtab_datum { - u32 data; /* access vector or type value */ -}; - -struct avtab_node { - struct avtab_key key; - struct avtab_datum datum; - struct avtab_node *next; -}; - -struct avtab { - struct avtab_node **htable; - u32 nel; /* number of elements */ - u32 nslot; /* number of hash slots */ - u16 mask; /* mask to compute hash func */ - -}; - -int avtab_init(struct avtab *); -int avtab_alloc(struct avtab *, u32); -struct avtab_datum *avtab_search(struct avtab *h, struct avtab_key *k); -void avtab_destroy(struct avtab *h); -void avtab_hash_eval(struct avtab *h, char *tag); - -struct policydb; -int avtab_read_item(struct avtab *a, void *fp, struct policydb *pol, - int (*insert)(struct avtab *a, struct avtab_key *k, - struct avtab_datum *d, void *p), - void *p); - -int avtab_read(struct avtab *a, void *fp, struct policydb *pol); -int avtab_write_item(struct policydb *p, struct avtab_node *cur, void *fp); -int avtab_write(struct policydb *p, struct avtab *a, void *fp); - -struct avtab_node *avtab_insert_nonunique(struct avtab *h, struct avtab_key *key, - struct avtab_datum *datum); - -struct avtab_node *avtab_search_node(struct avtab *h, struct avtab_key *key); - -struct avtab_node *avtab_search_node_next(struct avtab_node *node, int specified); - -void avtab_cache_init(void); -void avtab_cache_destroy(void); - -#define MAX_AVTAB_HASH_BITS 11 -#define MAX_AVTAB_HASH_BUCKETS (1 << MAX_AVTAB_HASH_BITS) - -#endif /* _SS_AVTAB_H_ */ - |