root/security/selinux/ss/services.h

INCLUDED FROM

   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 */
  14 struct 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 */
  21 struct selinux_map {
  22         struct selinux_mapping *mapping; /* indexed by class */
  23         u16 size; /* array size of mapping */
  24 };
  25 
  26 struct 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 
  36 void services_compute_xperms_drivers(struct extended_perms *xperms,
  37                                 struct avtab_node *node);
  38 
  39 void services_compute_xperms_decision(struct extended_perms_decision *xpermd,
  40                                         struct avtab_node *node);
  41 
  42 #endif  /* _SS_SERVICES_H_ */