FreeBSD/Linux Kernel Cross Reference
sys/sys/quota.h

     /* $NetBSD: quota.h,v 1.12 2012/01/30 00:56:19 dholland Exp $ */
     /*-
       * Copyright (c) 2010 Manuel Bouyer
       * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
      */
    
    #ifndef _SYS_QUOTA_H_
    #define _SYS_QUOTA_H_
    
    #include <sys/types.h>
    
    /* quota id types (entities being billed) */
    #define QUOTA_IDTYPE_USER       0
    #define QUOTA_IDTYPE_GROUP      1
    
    /* quota object types (things being limited) */
    #define QUOTA_OBJTYPE_BLOCKS    0
    #define QUOTA_OBJTYPE_FILES     1
    
    /* id value for "default" */
    #define QUOTA_DEFAULTID         ((id_t)-1)
    
    /* limit value for "no limit" */
    #define QUOTA_NOLIMIT           ((uint64_t)0xffffffffffffffffULL)
    
    /* time value for "no time" */
    #define QUOTA_NOTIME            ((time_t)-1)
    
    /*
     * Semantic restrictions. These are hints applications can use
     * to help produce comprehensible error diagnostics when something
     * unsupported is attempted.
     */
    #define QUOTA_RESTRICT_NEEDSQUOTACHECK  0x1     /* quotacheck(8) required */
    #define QUOTA_RESTRICT_UNIFORMGRACE     0x2     /* grace time is global */
    #define QUOTA_RESTRICT_32BIT            0x4     /* values limited to 2^32 */
    #define QUOTA_RESTRICT_READONLY         0x8     /* updates not supported */
    
    
    /*
     * Structure used to describe the key part of a quota record.
     */
    struct quotakey {
            int qk_idtype;          /* type of id (user, group, etc.) */
            id_t qk_id;             /* actual id number */
            int qk_objtype;         /* type of fs object (blocks, files, etc.) */
    };
    
    /*
     * Structure used to describe the value part of a quota record.
     */
    struct quotaval {
            uint64_t qv_hardlimit;  /* absolute limit */
            uint64_t qv_softlimit;  /* overflowable limit */
            uint64_t qv_usage;      /* current usage */
            time_t qv_expiretime;   /* time when softlimit grace expires */
            time_t qv_grace;        /* allowed time for overflowing soft limit */
    };
    
    #endif /* _SYS_QUOTA_H_ */

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