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68a829b29d
The groups_search() function was never exported by a mainline kernel therefore we drop this compatibility code and always provide our own implementation. Additionally, the cred_t structure has been available since 2.6.29 so there is no longer a need to maintain compatibility code. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/*****************************************************************************\
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* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
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* Copyright (C) 2007 The Regents of the University of California.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://zfsonlinux.org/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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\*****************************************************************************/
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#ifndef _SPL_CRED_H
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#define _SPL_CRED_H
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#include <linux/module.h>
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#include <sys/types.h>
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#include <sys/vfs.h>
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typedef struct cred cred_t;
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#define kcred ((cred_t *)(init_task.cred))
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#define CRED() ((cred_t *)current_cred())
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#ifdef HAVE_KUIDGID_T
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/*
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* Linux 3.8+ uses typedefs to redefine uid_t and gid_t. We have to rename the
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* typedefs to recover the original types. We then can use them provided that
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* we are careful about translating from k{g,u}id_t to the original versions
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* and vice versa.
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*/
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#define uid_t xuid_t
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#define gid_t xgid_t
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#include <linux/uidgid.h>
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#undef uid_t
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#undef gid_t
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#define KUID_TO_SUID(x) (__kuid_val(x))
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#define KGID_TO_SGID(x) (__kgid_val(x))
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#define SUID_TO_KUID(x) (KUIDT_INIT(x))
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#define SGID_TO_KGID(x) (KGIDT_INIT(x))
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#define KGIDP_TO_SGIDP(x) (&(x)->val)
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#else /* HAVE_KUIDGID_T */
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#define KUID_TO_SUID(x) (x)
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#define KGID_TO_SGID(x) (x)
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#define SUID_TO_KUID(x) (x)
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#define SGID_TO_KGID(x) (x)
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#define KGIDP_TO_SGIDP(x) (x)
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#endif /* HAVE_KUIDGID_T */
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extern void crhold(cred_t *cr);
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extern void crfree(cred_t *cr);
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extern uid_t crgetuid(const cred_t *cr);
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extern uid_t crgetruid(const cred_t *cr);
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extern uid_t crgetsuid(const cred_t *cr);
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extern uid_t crgetfsuid(const cred_t *cr);
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extern gid_t crgetgid(const cred_t *cr);
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extern gid_t crgetrgid(const cred_t *cr);
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extern gid_t crgetsgid(const cred_t *cr);
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extern gid_t crgetfsgid(const cred_t *cr);
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extern int crgetngroups(const cred_t *cr);
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extern gid_t * crgetgroups(const cred_t *cr);
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extern int groupmember(gid_t gid, const cred_t *cr);
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#endif /* _SPL_CRED_H */
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