LXR linux/include/uapi/linux/quota.h

   1/*
   2 * Copyright (c) 1982, 1986 Regents of the University of California.
   3 * All rights reserved.
   4 *
   5 * This code is derived from software contributed to Berkeley by
   6 * Robert Elz at The University of Melbourne.
   7 *
   8 * Redistribution and use in source and binary forms, with or without
   9 * modification, are permitted provided that the following conditions
  10 * are met:
  11 * 1. Redistributions of source code must retain the above copyright
  12 *    notice, this list of conditions and the following disclaimer.
  13 * 2. Redistributions in binary form must reproduce the above copyright
  14 *    notice, this list of conditions and the following disclaimer in the
  15 *    documentation and/or other materials provided with the distribution.
  16 * 3. Neither the name of the University nor the names of its contributors
  17 *    may be used to endorse or promote products derived from this software
  18 *    without specific prior written permission.
  19 *
  20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30 * SUCH DAMAGE.
  31 */
  32
  33#ifndef _UAPI_LINUX_QUOTA_
  34#define _UAPI_LINUX_QUOTA_
  35
  36#include <linux/errno.h>
  37#include <linux/types.h>
  38
  39#define __DQUOT_VERSION__       "dquot_6.5.2"
  40
  41#define MAXQUOTAS 2
  42#define USRQUOTA  0             /* element used for user quotas */
  43#define GRPQUOTA  1             /* element used for group quotas */
  44
  45/*
  46 * Definitions for the default names of the quotas files.
  47 */
  48#define INITQFNAMES { \
  49        "user",    /* USRQUOTA */ \
  50        "group",   /* GRPQUOTA */ \
  51        "undefined", \
  52};
  53
  54/*
  55 * Command definitions for the 'quotactl' system call.
  56 * The commands are broken into a main command defined below
  57 * and a subcommand that is used to convey the type of
  58 * quota that is being manipulated (see above).
  59 */
  60#define SUBCMDMASK  0x00ff
  61#define SUBCMDSHIFT 8
  62#define QCMD(cmd, type)  (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
  63
  64#define Q_SYNC     0x800001     /* sync disk copy of a filesystems quotas */
  65#define Q_QUOTAON  0x800002     /* turn quotas on */
  66#define Q_QUOTAOFF 0x800003     /* turn quotas off */
  67#define Q_GETFMT   0x800004     /* get quota format used on given filesystem */
  68#define Q_GETINFO  0x800005     /* get information about quota files */
  69#define Q_SETINFO  0x800006     /* set information about quota files */
  70#define Q_GETQUOTA 0x800007     /* get user quota structure */
  71#define Q_SETQUOTA 0x800008     /* set user quota structure */
  72#define Q_GETNEXTQUOTA 0x800009 /* get disk limits and usage >= ID */
  73
  74/* Quota format type IDs */
  75#define QFMT_VFS_OLD 1
  76#define QFMT_VFS_V0 2
  77#define QFMT_OCFS2 3
  78#define QFMT_VFS_V1 4
  79
  80/* Size of block in which space limits are passed through the quota
  81 * interface */
  82#define QIF_DQBLKSIZE_BITS 10
  83#define QIF_DQBLKSIZE (1 << QIF_DQBLKSIZE_BITS)
  84
  85/*
  86 * Quota structure used for communication with userspace via quotactl
  87 * Following flags are used to specify which fields are valid
  88 */
  89enum {
  90        QIF_BLIMITS_B = 0,
  91        QIF_SPACE_B,
  92        QIF_ILIMITS_B,
  93        QIF_INODES_B,
  94        QIF_BTIME_B,
  95        QIF_ITIME_B,
  96};
  97
  98#define QIF_BLIMITS     (1 << QIF_BLIMITS_B)
  99#define QIF_SPACE       (1 << QIF_SPACE_B)
 100#define QIF_ILIMITS     (1 << QIF_ILIMITS_B)
 101#define QIF_INODES      (1 << QIF_INODES_B)
 102#define QIF_BTIME       (1 << QIF_BTIME_B)
 103#define QIF_ITIME       (1 << QIF_ITIME_B)
 104#define QIF_LIMITS      (QIF_BLIMITS | QIF_ILIMITS)
 105#define QIF_USAGE       (QIF_SPACE | QIF_INODES)
 106#define QIF_TIMES       (QIF_BTIME | QIF_ITIME)
 107#define QIF_ALL         (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
 108
 109struct if_dqblk {
 110        __u64 dqb_bhardlimit;
 111        __u64 dqb_bsoftlimit;
 112        __u64 dqb_curspace;
 113        __u64 dqb_ihardlimit;
 114        __u64 dqb_isoftlimit;
 115        __u64 dqb_curinodes;
 116        __u64 dqb_btime;
 117        __u64 dqb_itime;
 118        __u32 dqb_valid;
 119};
 120
 121struct if_nextdqblk {
 122        __u64 dqb_bhardlimit;
 123        __u64 dqb_bsoftlimit;
 124        __u64 dqb_curspace;
 125        __u64 dqb_ihardlimit;
 126        __u64 dqb_isoftlimit;
 127        __u64 dqb_curinodes;
 128        __u64 dqb_btime;
 129        __u64 dqb_itime;
 130        __u32 dqb_valid;
 131        __u32 dqb_id;
 132};
 133
 134/*
 135 * Structure used for setting quota information about file via quotactl
 136 * Following flags are used to specify which fields are valid
 137 */
 138#define IIF_BGRACE      1
 139#define IIF_IGRACE      2
 140#define IIF_FLAGS       4
 141#define IIF_ALL         (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
 142
 143struct if_dqinfo {
 144        __u64 dqi_bgrace;
 145        __u64 dqi_igrace;
 146        __u32 dqi_flags;
 147        __u32 dqi_valid;
 148};
 149
 150/*
 151 * Definitions for quota netlink interface
 152 */
 153#define QUOTA_NL_NOWARN 0
 154#define QUOTA_NL_IHARDWARN 1            /* Inode hardlimit reached */
 155#define QUOTA_NL_ISOFTLONGWARN 2        /* Inode grace time expired */
 156#define QUOTA_NL_ISOFTWARN 3            /* Inode softlimit reached */
 157#define QUOTA_NL_BHARDWARN 4            /* Block hardlimit reached */
 158#define QUOTA_NL_BSOFTLONGWARN 5        /* Block grace time expired */
 159#define QUOTA_NL_BSOFTWARN 6            /* Block softlimit reached */
 160#define QUOTA_NL_IHARDBELOW 7           /* Usage got below inode hardlimit */
 161#define QUOTA_NL_ISOFTBELOW 8           /* Usage got below inode softlimit */
 162#define QUOTA_NL_BHARDBELOW 9           /* Usage got below block hardlimit */
 163#define QUOTA_NL_BSOFTBELOW 10          /* Usage got below block softlimit */
 164
 165enum {
 166        QUOTA_NL_C_UNSPEC,
 167        QUOTA_NL_C_WARNING,
 168        __QUOTA_NL_C_MAX,
 169};
 170#define QUOTA_NL_C_MAX (__QUOTA_NL_C_MAX - 1)
 171
 172enum {
 173        QUOTA_NL_A_UNSPEC,
 174        QUOTA_NL_A_QTYPE,
 175        QUOTA_NL_A_EXCESS_ID,
 176        QUOTA_NL_A_WARNING,
 177        QUOTA_NL_A_DEV_MAJOR,
 178        QUOTA_NL_A_DEV_MINOR,
 179        QUOTA_NL_A_CAUSED_ID,
 180        QUOTA_NL_A_PAD,
 181        __QUOTA_NL_A_MAX,
 182};
 183#define QUOTA_NL_A_MAX (__QUOTA_NL_A_MAX - 1)
 184
 185
 186#endif /* _UAPI_LINUX_QUOTA_ */
 187