src/core/selinux-access.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2012 Dan Walsh
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU General Public License as published by
  12   the Free Software Foundation; either version 2 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   General Public License for more details.
  19
  20   You should have received a copy of the GNU General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24 #include <dbus.h>
  25
  26 void selinux_access_free(void);
  27
  28 int selinux_access_check(DBusConnection *connection, DBusMessage *message, const char *path, const char *permission, DBusError *error);
  29
  30 #ifdef HAVE_SELINUX
  31
  32 #define SELINUX_ACCESS_CHECK(connection, message, permission) \
  33         do {                                                            \
  34                 DBusError _error;                                       \
  35                 int _r;                                                 \
  36                 DBusConnection *_c = (connection);                      \
  37                 DBusMessage *_m = (message);                            \
  38                 dbus_error_init(&_error);                               \
  39                 _r = selinux_access_check(_c, _m, NULL, (permission), &_error); \
  40                 if (_r < 0)                                             \
  41                         return bus_send_error_reply(_c, _m, &_error, _r); \
  42         } while (false)
  43
  44 #define SELINUX_UNIT_ACCESS_CHECK(unit, connection, message, permission) \
  45         do {                                                            \
  46                 DBusError _error;                                       \
  47                 int _r;                                                 \
  48                 DBusConnection *_c = (connection);                      \
  49                 DBusMessage *_m = (message);                            \
  50                 Unit *_u = (unit);                                      \
  51                 dbus_error_init(&_error);                               \
  52                 _r = selinux_access_check(_c, _m, _u->source_path ?: _u->fragment_path, (permission), &_error); \
  53                 if (_r < 0)                                             \
  54                         return bus_send_error_reply(_c, _m, &_error, _r); \
  55         } while (false)
  56
  57 #else
  58
  59 #define SELINUX_ACCESS_CHECK(connection, message, permission) do { } while (false)
  60 #define SELINUX_UNIT_ACCESS_CHECK(unit, connection, message, permission) do { } while (false)
  61
  62 #endif