projects / mirror_lxc.git / blame
| Commit | Line | Data |
|---|---|---|
| b3357a6f DL |
1 | /* |
| 2 | * lxc: linux Container library | |
| 3 | * | |
| 4 | * (C) Copyright IBM Corp. 2007, 2008 | |
| 5 | * | |
| 6 | * Authors: | |
| 7 | * Daniel Lezcano <dlezcano at fr.ibm.com> | |
| 8 | * | |
| 9 | * This library is free software; you can redistribute it and/or | |
| 10 | * modify it under the terms of the GNU Lesser General Public | |
| 11 | * License as published by the Free Software Foundation; either | |
| 12 | * version 2.1 of the License, or (at your option) any later version. | |
| 13 | * | |
| 14 | * This library is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 | * Lesser General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU Lesser General Public | |
| 20 | * License along with this library; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 22 | */ | |
| 23 | #ifndef _caps_h | |
| 24 | #define _caps_h | |
| 7d40e69b | 25 | |
| 05cda563 | 26 | extern int lxc_caps_reset(void); |
| 7d40e69b DL |
27 | extern int lxc_caps_down(void); |
| 28 | extern int lxc_caps_up(void); | |
| 29 | extern int lxc_caps_init(void); | |
| 4a2ca8b2 | 30 | extern int lxc_caps_check(void); |
| 7d40e69b | 31 | |
| 20d81659 CS |
32 | extern int lxc_caps_last_cap(void); |
| 33 | ||
| 7d40e69b DL |
34 | #define lxc_priv(__lxc_function) \ |
| 35 | ({ \ | |
| 596a818d | 36 | __label__ out; \ |
| 7d40e69b DL |
37 | int __ret, __ret2, __errno = 0; \ |
| 38 | __ret = lxc_caps_up(); \ | |
| 39 | if (__ret) \ | |
| 596a818d | 40 | goto out; \ |
| 7d40e69b DL |
41 | __ret = __lxc_function; \ |
| 42 | if (__ret) \ | |
| 43 | __errno = errno; \ | |
| 44 | __ret2 = lxc_caps_down(); \ | |
| 596a818d | 45 | out: __ret ? errno = __errno,__ret : __ret2; \ |
| 7d40e69b DL |
46 | }) |
| 47 | ||
| 596a818d | 48 | #define lxc_unpriv(__lxc_function) \ |
| 7d40e69b | 49 | ({ \ |
| 596a818d | 50 | __label__ out; \ |
| 7d40e69b DL |
51 | int __ret, __ret2, __errno = 0; \ |
| 52 | __ret = lxc_caps_down(); \ | |
| 53 | if (__ret) \ | |
| 596a818d | 54 | goto out; \ |
| 7d40e69b DL |
55 | __ret = __lxc_function; \ |
| 56 | if (__ret) \ | |
| 57 | __errno = errno; \ | |
| 58 | __ret2 = lxc_caps_up(); \ | |
| 596a818d | 59 | out: __ret ? errno = __errno,__ret : __ret2; \ |
| 7d40e69b | 60 | }) |
| b3357a6f | 61 | #endif |