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quota.h
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/* * 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_ */