| Current File : //proc/self/root/usr/include/linux/quota.h |
/*
* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Robert Elz at The University of Melbourne.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 _LINUX_QUOTA_
#define _LINUX_QUOTA_
#include <linux/types.h>
#define __DQUOT_VERSION__ "dquot_6.6.0"
#define MAXQUOTAS 3
#define USRQUOTA 0 /* element used for user quotas */
#define GRPQUOTA 1 /* element used for group quotas */
#define PRJQUOTA 2 /* element used for project quotas */
/*
* Definitions for the default names of the quotas files.
*/
#define INITQFNAMES { \
"user", /* USRQUOTA */ \
"group", /* GRPQUOTA */ \
"project", /* PRJQUOTA */ \
"undefined", \
};
/*
* Command definitions for the 'quotactl' system call.
* The commands are broken into a main command defined below
* and a subcommand that is used to convey the type of
* quota that is being manipulated (see above).
*/
#define SUBCMDMASK 0x00ff
#define SUBCMDSHIFT 8
#define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
#define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */
#define Q_QUOTAON 0x800002 /* turn quotas on */
#define Q_QUOTAOFF 0x800003 /* turn quotas off */
#define Q_GETFMT 0x800004 /* get quota format used on given filesystem */
#define Q_GETINFO 0x800005 /* get information about quota files */
#define Q_SETINFO 0x800006 /* set information about quota files */
#define Q_GETQUOTA 0x800007 /* get user quota structure */
#define Q_SETQUOTA 0x800008 /* set user quota structure */
#define Q_GETNEXTQUOTA 0x800009 /* get disk limits and usage >= ID */
/* Quota format type IDs */
#define QFMT_VFS_OLD 1
#define QFMT_VFS_V0 2
#define QFMT_OCFS2 3
#define QFMT_VFS_V1 4
#define QFMT_SHMEM 5
/* Size of block in which space limits are passed through the quota
* interface */
#define QIF_DQBLKSIZE_BITS 10
#define QIF_DQBLKSIZE (1 << QIF_DQBLKSIZE_BITS)
/*
* Quota structure used for communication with userspace via quotactl
* Following flags are used to specify which fields are valid
*/
enum {
QIF_BLIMITS_B = 0,
QIF_SPACE_B,
QIF_ILIMITS_B,
QIF_INODES_B,
QIF_BTIME_B,
QIF_ITIME_B,
};
#define QIF_BLIMITS (1 << QIF_BLIMITS_B)
#define QIF_SPACE (1 << QIF_SPACE_B)
#define QIF_ILIMITS (1 << QIF_ILIMITS_B)
#define QIF_INODES (1 << QIF_INODES_B)
#define QIF_BTIME (1 << QIF_BTIME_B)
#define QIF_ITIME (1 << QIF_ITIME_B)
#define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
#define QIF_USAGE (QIF_SPACE | QIF_INODES)
#define QIF_TIMES (QIF_BTIME | QIF_ITIME)
#define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
struct if_dqblk {
__u64 dqb_bhardlimit;
__u64 dqb_bsoftlimit;
__u64 dqb_curspace;
__u64 dqb_ihardlimit;
__u64 dqb_isoftlimit;
__u64 dqb_curinodes;
__u64 dqb_btime;
__u64 dqb_itime;
__u32 dqb_valid;
};
struct if_nextdqblk {
__u64 dqb_bhardlimit;
__u64 dqb_bsoftlimit;
__u64 dqb_curspace;
__u64 dqb_ihardlimit;
__u64 dqb_isoftlimit;
__u64 dqb_curinodes;
__u64 dqb_btime;
__u64 dqb_itime;
__u32 dqb_valid;
__u32 dqb_id;
};
/*
* Structure used for setting quota information about file via quotactl
* Following flags are used to specify which fields are valid
*/
#define IIF_BGRACE 1
#define IIF_IGRACE 2
#define IIF_FLAGS 4
#define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
enum {
DQF_ROOT_SQUASH_B = 0,
DQF_SYS_FILE_B = 16,
/* Kernel internal flags invisible to userspace */
DQF_PRIVATE
};
/* Root squash enabled (for v1 quota format) */
#define DQF_ROOT_SQUASH (1 << DQF_ROOT_SQUASH_B)
/* Quota stored in a system file */
#define DQF_SYS_FILE (1 << DQF_SYS_FILE_B)
struct if_dqinfo {
__u64 dqi_bgrace;
__u64 dqi_igrace;
__u32 dqi_flags; /* DFQ_* */
__u32 dqi_valid;
};
/*
* Definitions for quota netlink interface
*/
#define QUOTA_NL_NOWARN 0
#define QUOTA_NL_IHARDWARN 1 /* Inode hardlimit reached */
#define QUOTA_NL_ISOFTLONGWARN 2 /* Inode grace time expired */
#define QUOTA_NL_ISOFTWARN 3 /* Inode softlimit reached */
#define QUOTA_NL_BHARDWARN 4 /* Block hardlimit reached */
#define QUOTA_NL_BSOFTLONGWARN 5 /* Block grace time expired */
#define QUOTA_NL_BSOFTWARN 6 /* Block softlimit reached */
#define QUOTA_NL_IHARDBELOW 7 /* Usage got below inode hardlimit */
#define QUOTA_NL_ISOFTBELOW 8 /* Usage got below inode softlimit */
#define QUOTA_NL_BHARDBELOW 9 /* Usage got below block hardlimit */
#define QUOTA_NL_BSOFTBELOW 10 /* Usage got below block softlimit */
enum {
QUOTA_NL_C_UNSPEC,
QUOTA_NL_C_WARNING,
__QUOTA_NL_C_MAX,
};
#define QUOTA_NL_C_MAX (__QUOTA_NL_C_MAX - 1)
enum {
QUOTA_NL_A_UNSPEC,
QUOTA_NL_A_QTYPE,
QUOTA_NL_A_EXCESS_ID,
QUOTA_NL_A_WARNING,
QUOTA_NL_A_DEV_MAJOR,
QUOTA_NL_A_DEV_MINOR,
QUOTA_NL_A_CAUSED_ID,
QUOTA_NL_A_PAD,
__QUOTA_NL_A_MAX,
};
#define QUOTA_NL_A_MAX (__QUOTA_NL_A_MAX - 1)
#endif /* _LINUX_QUOTA_ */