hurd/hurd/id.h

   1 /* User and group IDs.
   2    Copyright (C) 1993-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _HURD_ID_H
  20
  21 #define _HURD_ID_H      1
  22 #include <features.h>
  23
  24 #include <cthreads.h>           /* For `struct mutex'.  */
  25
  26 /* Structure describing authorization data for the process.  */
  27
  28 struct hurd_id_data
  29   {
  30     struct mutex lock;
  31
  32     int valid;                  /* If following data are up to date.  */
  33
  34     struct
  35       {
  36         uid_t *uids;
  37         gid_t *gids;
  38         mach_msg_type_number_t nuids, ngids;
  39       } gen, aux;
  40
  41     auth_t rid_auth;            /* Cache used by access.  */
  42   };
  43
  44 /* Current data.  */
  45
  46 extern struct hurd_id_data _hurd_id;
  47
  48
  49 /* Update _hurd_id (caller should be holding the lock).  */
  50
  51 extern error_t _hurd_check_ids (void);
  52
  53
  54 #endif  /* hurd/id.h */