FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/linux/spl/sys/sid.h

     /*
      *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
      *  Copyright (C) 2007 The Regents of the University of California.
      *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
      *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
      *  UCRL-CODE-235197
      *
      *  This file is part of the SPL, Solaris Porting Layer.
      *
     *  The SPL is free software; you can redistribute it and/or modify it
     *  under the terms of the GNU General Public License as published by the
     *  Free Software Foundation; either version 2 of the License, or (at your
     *  option) any later version.
     *
     *  The SPL 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 General Public License
     *  for more details.
     *
     *  You should have received a copy of the GNU General Public License along
     *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
     */
    
    #ifndef _SPL_SID_H
    #define _SPL_SID_H
    
    typedef struct ksiddomain {
            char            *kd_name;
    } ksiddomain_t;
    
    typedef enum ksid_index {
            KSID_USER,
            KSID_GROUP,
            KSID_OWNER,
            KSID_COUNT
    } ksid_index_t;
    
    typedef int ksid_t;
    
    static inline ksiddomain_t *
    ksid_lookupdomain(const char *dom)
    {
            ksiddomain_t *kd;
            int len = strlen(dom);
    
            kd = kmem_zalloc(sizeof (ksiddomain_t), KM_SLEEP);
            kd->kd_name = kmem_zalloc(len + 1, KM_SLEEP);
            memcpy(kd->kd_name, dom, len);
    
            return (kd);
    }
    
    static inline void
    ksiddomain_rele(ksiddomain_t *ksid)
    {
            kmem_free(ksid->kd_name, strlen(ksid->kd_name) + 1);
            kmem_free(ksid, sizeof (ksiddomain_t));
    }
    
    #endif /* _SPL_SID_H */

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