LXR linux/security/selinux/ss/services.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Implementation of the security services.
   4 *
   5 * Author : Stephen Smalley, <sds@tycho.nsa.gov>
   6 */
   7#ifndef _SS_SERVICES_H_
   8#define _SS_SERVICES_H_
   9
  10#include "policydb.h"
  11#include "sidtab.h"
  12
  13/* Mapping for a single class */
  14struct selinux_mapping {
  15        u16 value; /* policy value for class */
  16        unsigned int num_perms; /* number of permissions in class */
  17        u32 perms[sizeof(u32) * 8]; /* policy values for permissions */
  18};
  19
  20/* Map for all of the classes, with array size */
  21struct selinux_map {
  22        struct selinux_mapping *mapping; /* indexed by class */
  23        u16 size; /* array size of mapping */
  24};
  25
  26struct selinux_ss {
  27        struct sidtab *sidtab;
  28        struct policydb policydb;
  29        rwlock_t policy_rwlock;
  30        u32 latest_granting;
  31        struct selinux_map map;
  32        struct page *status_page;
  33        struct mutex status_lock;
  34};
  35
  36void services_compute_xperms_drivers(struct extended_perms *xperms,
  37                                struct avtab_node *node);
  38
  39void services_compute_xperms_decision(struct extended_perms_decision *xpermd,
  40                                        struct avtab_node *node);
  41
  42#endif  /* _SS_SERVICES_H_ */
  43