pandory500/oleavr-rgl-a500-mini-linux-3.10
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Initial commit

Browse source
This commit is contained in:
Ole André Vadla Ravnås 2022-05-07 01:01:45 +02:00
commit 169c65d57e
51358 changed files with 23120455 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

56
security/selinux/ss/sidtab.h Normal file
View file

@ -0,0 +1,56 @@
/*
* A security identifier table (sidtab) is a hash table
* of security context structures indexed by SID value.
*
* Author : Stephen Smalley, <sds@epoch.ncsc.mil>
*/
#ifndef _SS_SIDTAB_H_
#define _SS_SIDTAB_H_
#include "context.h"
struct sidtab_node {
u32 sid; /* security identifier */
struct context context; /* security context structure */
struct sidtab_node *next;
};
#define SIDTAB_HASH_BITS 7
#define SIDTAB_HASH_BUCKETS (1 << SIDTAB_HASH_BITS)
#define SIDTAB_HASH_MASK (SIDTAB_HASH_BUCKETS-1)
#define SIDTAB_SIZE SIDTAB_HASH_BUCKETS
struct sidtab {
struct sidtab_node **htable;
unsigned int nel; /* number of elements */
unsigned int next_sid; /* next SID to allocate */
unsigned char shutdown;
#define SIDTAB_CACHE_LEN 3
struct sidtab_node *cache[SIDTAB_CACHE_LEN];
spinlock_t lock;
};
int sidtab_init(struct sidtab *s);
int sidtab_insert(struct sidtab *s, u32 sid, struct context *context);
struct context *sidtab_search(struct sidtab *s, u32 sid);
struct context *sidtab_search_force(struct sidtab *s, u32 sid);
int sidtab_map(struct sidtab *s,
int (*apply) (u32 sid,
struct context *context,
void *args),
void *args);
int sidtab_context_to_sid(struct sidtab *s,
struct context *context,
u32 *sid);
void sidtab_hash_eval(struct sidtab *h, char *tag);
void sidtab_destroy(struct sidtab *s);
void sidtab_set(struct sidtab *dst, struct sidtab *src);
void sidtab_shutdown(struct sidtab *s);
#endif /* _SS_SIDTAB_H_ */