mirror_zfs/include/os/freebsd/spl/sys/zone.h
Ryan Moeller eff621071f FreeBSD: Simplify INGLOBALZONE
FreeBSD's previous ZFS implemented INGLOBALZONE(thread) as
(!jailed((thread)->td_ucred)) and passed curthread to INGLOBALZONE.

We pass curproc instead of curthread, so we can achieve the same effect
with (!jailed((proc)->p_ucred)).  The implementation is trivial enough
to fit on a single line in a define.  We don't really need a whole
separate function for something that's already macros all the way down.

Eliminate in_globalzone.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <freqlabs@FreeBSD.org>
Closes #10851
2020-08-31 19:43:08 -07:00

68 lines
2.3 KiB
C

/*
* Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _OPENSOLARIS_SYS_ZONE_H_
#define _OPENSOLARIS_SYS_ZONE_H_
#include <sys/jail.h>
/*
* Macros to help with zone visibility restrictions.
*/
#define GLOBAL_ZONEID 0
/*
* Is proc in the global zone?
*/
#define INGLOBALZONE(proc) (!jailed((proc)->p_ucred))
/*
* Attach the given dataset to the given jail.
*/
extern int zone_dataset_attach(struct ucred *, const char *, int);
/*
* Detach the given dataset to the given jail.
*/
extern int zone_dataset_detach(struct ucred *, const char *, int);
/*
* Returns true if the named pool/dataset is visible in the current zone.
*/
extern int zone_dataset_visible(const char *, int *);
/*
* Safely get the hostid of the specified zone (defaults to machine's hostid
* if the specified zone doesn't emulate a hostid). Passing NULL retrieves
* the global zone's (i.e., physical system's) hostid.
*/
extern uint32_t zone_get_hostid(void *);
#endif /* !_OPENSOLARIS_SYS_ZONE_H_ */