1 /* 2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. 3 * Copyright (C) 2007 The Regents of the University of California. 4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). 5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>. 6 * UCRL-CODE-235197 7 * 8 * This file is part of the SPL, Solaris Porting Layer. 9 * 10 * The SPL is free software; you can redistribute it and/or modify it 11 * under the terms of the GNU General Public License as published by the 12 * Free Software Foundation; either version 2 of the License, or (at your 13 * option) any later version. 14 * 15 * The SPL is distributed in the hope that it will be useful, but WITHOUT 16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 18 * for more details. 19 * 20 * You should have received a copy of the GNU General Public License along 21 * with the SPL. If not, see <http://www.gnu.org/licenses/>. 22 */ 23 24 #ifndef _SPL_ZONE_H 25 #define _SPL_ZONE_H 26 27 #include <sys/byteorder.h> 28 #include <sys/cred.h> 29 30 #include <linux/cred.h> 31 #include <linux/user_namespace.h> 32 33 /* 34 * Attach the given dataset to the given user namespace. 35 */ 36 extern int zone_dataset_attach(cred_t *, const char *, int); 37 38 /* 39 * Detach the given dataset from the given user namespace. 40 */ 41 extern int zone_dataset_detach(cred_t *, const char *, int); 42 43 /* 44 * Returns true if the named pool/dataset is visible in the current zone. 45 */ 46 extern int zone_dataset_visible(const char *dataset, int *write); 47 48 int spl_zone_init(void); 49 void spl_zone_fini(void); 50 51 extern unsigned int crgetzoneid(const cred_t *); 52 extern unsigned int global_zoneid(void); 53 extern boolean_t inglobalzone(proc_t *); 54 55 #define INGLOBALZONE(x) inglobalzone(x) 56 #define GLOBAL_ZONEID global_zoneid() 57 58 #endif /* SPL_ZONE_H */ 59