[thirdparty/systemd.git] / src / nspawn / nspawn-def.h

#pragma once

/***
  This file is part of systemd.

  Copyright 2017 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <sys/types.h>

/* Note that devpts's gid= parameter parses GIDs as signed values, hence we stay away from the upper half of the 32bit
 * UID range here. We leave a bit of room at the lower end and a lot of room at the upper end, so that other subsystems
 * may have their own allocation ranges too. */
#define UID_SHIFT_PICK_MIN ((uid_t) UINT32_C(0x00080000))
#define UID_SHIFT_PICK_MAX ((uid_t) UINT32_C(0x6FFF0000))

/* While we are chmod()ing a directory tree, we set the top-level UID base to this "busy" base, so that we can always
 * recognize trees we are were chmod()ing recursively and got interrupted in */
#define UID_BUSY_BASE ((uid_t) UINT32_C(0xFFFE0000))
#define UID_BUSY_MASK ((uid_t) UINT32_C(0xFFFF0000))
Commit	Line	Data
3603efde LP	1	#pragma once
	2
	3	/***
	4	This file is part of systemd.
	5
	6	Copyright 2017 Lennart Poettering
	7
	8	systemd is free software; you can redistribute it and/or modify it
	9	under the terms of the GNU Lesser General Public License as published by
	10	the Free Software Foundation; either version 2.1 of the License, or
	11	(at your option) any later version.
	12
	13	systemd is distributed in the hope that it will be useful, but
	14	WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	Lesser General Public License for more details.
	17
	18	You should have received a copy of the GNU Lesser General Public License
	19	along with systemd; If not, see <http://www.gnu.org/licenses/>.
	20	***/
	21
	22	#include <sys/types.h>
	23
	24	/* Note that devpts's gid= parameter parses GIDs as signed values, hence we stay away from the upper half of the 32bit
	25	* UID range here. We leave a bit of room at the lower end and a lot of room at the upper end, so that other subsystems
	26	* may have their own allocation ranges too. */
	27	#define UID_SHIFT_PICK_MIN ((uid_t) UINT32_C(0x00080000))
	28	#define UID_SHIFT_PICK_MAX ((uid_t) UINT32_C(0x6FFF0000))
	29
	30	/* While we are chmod()ing a directory tree, we set the top-level UID base to this "busy" base, so that we can always
	31	* recognize trees we are were chmod()ing recursively and got interrupted in */
	32	#define UID_BUSY_BASE ((uid_t) UINT32_C(0xFFFE0000))
	33	#define UID_BUSY_MASK ((uid_t) UINT32_C(0xFFFF0000))