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 * For details, see <http://zfsonlinux.org/>. 10 * 11 * The SPL is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License as published by the 13 * Free Software Foundation; either version 2 of the License, or (at your 14 * option) any later version. 15 * 16 * The SPL is distributed in the hope that it will be useful, but WITHOUT 17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19 * for more details. 20 * 21 * You should have received a copy of the GNU General Public License along 22 * with the SPL. If not, see <http://www.gnu.org/licenses/>. 23 */ 24 25 #ifndef _SPL_CRED_H 26 #define _SPL_CRED_H 27 28 #include <linux/module.h> 29 #include <linux/cred.h> 30 #include <sys/types.h> 31 #include <sys/vfs.h> 32 33 typedef struct cred cred_t; 34 35 #define kcred ((cred_t *)(init_task.cred)) 36 #define CRED() ((cred_t *)current_cred()) 37 38 /* Linux 4.9 API change, GROUP_AT was removed */ 39 #ifndef GROUP_AT 40 #define GROUP_AT(gi, i) ((gi)->gid[i]) 41 #endif 42 43 #define KUID_TO_SUID(x) (__kuid_val(x)) 44 #define KGID_TO_SGID(x) (__kgid_val(x)) 45 #define SUID_TO_KUID(x) (KUIDT_INIT(x)) 46 #define SGID_TO_KGID(x) (KGIDT_INIT(x)) 47 #define KGIDP_TO_SGIDP(x) (&(x)->val) 48 49 extern void crhold(cred_t *cr); 50 extern void crfree(cred_t *cr); 51 extern uid_t crgetuid(const cred_t *cr); 52 extern uid_t crgetruid(const cred_t *cr); 53 extern uid_t crgetsuid(const cred_t *cr); 54 extern uid_t crgetfsuid(const cred_t *cr); 55 extern gid_t crgetgid(const cred_t *cr); 56 extern gid_t crgetrgid(const cred_t *cr); 57 extern gid_t crgetsgid(const cred_t *cr); 58 extern gid_t crgetfsgid(const cred_t *cr); 59 extern int crgetngroups(const cred_t *cr); 60 extern gid_t *crgetgroups(const cred_t *cr); 61 extern int groupmember(gid_t gid, const cred_t *cr); 62 63 #endif /* _SPL_CRED_H */ 64