[thirdparty/systemd.git] / src / shared / nsflags.h

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once

/***
  This file is part of systemd.

  Copyright 2016 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 <sched.h>

#include "missing.h"

/* The combination of all namespace flags defined by the kernel. The right type for this isn't clear. setns() and
 * unshare() expect these flags to be passed as (signed) "int", while clone() wants them as "unsigned long". The latter
 * is definitely more appropriate for a flags parameter, and also the larger type of the two, hence let's stick to that
 * here. */
#define NAMESPACE_FLAGS_ALL                                             \
        ((unsigned long) (CLONE_NEWCGROUP|                              \
                          CLONE_NEWIPC|                                 \
                          CLONE_NEWNET|                                 \
                          CLONE_NEWNS|                                  \
                          CLONE_NEWPID|                                 \
                          CLONE_NEWUSER|                                \
                          CLONE_NEWUTS))

const char* namespace_flag_to_string(unsigned long flag);
unsigned long namespace_flag_from_string(const char *name);
int namespace_flag_from_string_many(const char *name, unsigned long *ret);
int namespace_flag_to_string_many(unsigned long flags, char **ret);

struct namespace_flag_map {
        unsigned long flag;
        const char *name;
};

extern const struct namespace_flag_map namespace_flag_map[];
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
add00535 LP	2	#pragma once
	3
	4	/***
	5	This file is part of systemd.
	6
	7	Copyright 2016 Lennart Poettering
	8
	9	systemd is free software; you can redistribute it and/or modify it
	10	under the terms of the GNU Lesser General Public License as published by
	11	the Free Software Foundation; either version 2.1 of the License, or
	12	(at your option) any later version.
	13
	14	systemd is distributed in the hope that it will be useful, but
	15	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 License
	20	along with systemd; If not, see <http://www.gnu.org/licenses/>.
	21	***/
	22
	23	#include <sched.h>
	24
	25	#include "missing.h"
	26
	27	/* The combination of all namespace flags defined by the kernel. The right type for this isn't clear. setns() and
	28	* unshare() expect these flags to be passed as (signed) "int", while clone() wants them as "unsigned long". The latter
	29	* is definitely more appropriate for a flags parameter, and also the larger type of the two, hence let's stick to that
	30	* here. */
	31	#define NAMESPACE_FLAGS_ALL \
	32	((unsigned long) (CLONE_NEWCGROUP\| \
	33	CLONE_NEWIPC\| \
	34	CLONE_NEWNET\| \
	35	CLONE_NEWNS\| \
	36	CLONE_NEWPID\| \
	37	CLONE_NEWUSER\| \
	38	CLONE_NEWUTS))
	39
	40	const char* namespace_flag_to_string(unsigned long flag);
	41	unsigned long namespace_flag_from_string(const char *name);
	42	int namespace_flag_from_string_many(const char name, unsigned long ret);
	43	int namespace_flag_to_string_many(unsigned long flags, char **ret);
	44
	45	struct namespace_flag_map {
	46	unsigned long flag;
	47	const char *name;
	48	};
	49
	50	extern const struct namespace_flag_map namespace_flag_map[];