1 /* 2 * A security identifier table (sidtab) is a hash table 3 * of security context structures indexed by SID value. 4 */ 5 #ifndef _SELINUX_AVC_SIDTAB_H_ 6 #define _SELINUX_AVC_SIDTAB_H_ 7 8 #include <selinux/selinux.h> 9 #include <selinux/avc.h> 10 11 struct sidtab_node { 12 struct security_id sid_s; 13 struct sidtab_node *next; 14 }; 15 16 #define SIDTAB_HASH_BITS 7 17 #define SIDTAB_HASH_BUCKETS (1 << SIDTAB_HASH_BITS) 18 #define SIDTAB_HASH_MASK (SIDTAB_HASH_BUCKETS-1) 19 #define SIDTAB_SIZE SIDTAB_HASH_BUCKETS 20 21 struct sidtab { 22 struct sidtab_node **htable; 23 unsigned nel; 24 }; 25 26 int sidtab_init(struct sidtab *s) ; 27 int sidtab_insert(struct sidtab *s, const char * ctx) ; 28 29 int sidtab_context_to_sid(struct sidtab *s, 30 const char * ctx, security_id_t * sid) ; 31 32 void sidtab_sid_stats(struct sidtab *s, char *buf, int buflen) ; 33 void sidtab_destroy(struct sidtab *s) ; 34 35 #endif /* _SELINUX_AVC_SIDTAB_H_ */ 36