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_6.6.0" 40 41#define MAXQUOTAS 3 42#define USRQUOTA 0 /* element used for user quotas */ 43#define GRPQUOTA 1 /* element used for group quotas */ 44#define PRJQUOTA 2 /* element used for project quotas */ 45 46/* 47 * Definitions for the default names of the quotas files. 48 */ 49#define INITQFNAMES { \ 50 "user", /* USRQUOTA */ \ 51 "group", /* GRPQUOTA */ \ 52 "project", /* PRJQUOTA */ \ 53 "undefined", \ 54}; 55 56/* 57 * Command definitions for the 'quotactl' system call. 58 * The commands are broken into a main command defined below 59 * and a subcommand that is used to convey the type of 60 * quota that is being manipulated (see above). 61 */ 62#define SUBCMDMASK 0x00ff 63#define SUBCMDSHIFT 8 64#define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK)) 65 66#define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */ 67#define Q_QUOTAON 0x800002 /* turn quotas on */ 68#define Q_QUOTAOFF 0x800003 /* turn quotas off */ 69#define Q_GETFMT 0x800004 /* get quota format used on given filesystem */ 70#define Q_GETINFO 0x800005 /* get information about quota files */ 71#define Q_SETINFO 0x800006 /* set information about quota files */ 72#define Q_GETQUOTA 0x800007 /* get user quota structure */ 73#define Q_SETQUOTA 0x800008 /* set user quota structure */ 74 75/* Quota format type IDs */ 76#define QFMT_VFS_OLD 1 77#define QFMT_VFS_V0 2 78#define QFMT_OCFS2 3 79#define QFMT_VFS_V1 4 80 81/* Size of block in which space limits are passed through the quota 82 * interface */ 83#define QIF_DQBLKSIZE_BITS 10 84#define QIF_DQBLKSIZE (1 << QIF_DQBLKSIZE_BITS) 85 86/* 87 * Quota structure used for communication with userspace via quotactl 88 * Following flags are used to specify which fields are valid 89 */ 90enum { 91 QIF_BLIMITS_B = 0, 92 QIF_SPACE_B, 93 QIF_ILIMITS_B, 94 QIF_INODES_B, 95 QIF_BTIME_B, 96 QIF_ITIME_B, 97}; 98 99#define QIF_BLIMITS (1 << QIF_BLIMITS_B) 100#define QIF_SPACE (1 << QIF_SPACE_B) 101#define QIF_ILIMITS (1 << QIF_ILIMITS_B) 102#define QIF_INODES (1 << QIF_INODES_B) 103#define QIF_BTIME (1 << QIF_BTIME_B) 104#define QIF_ITIME (1 << QIF_ITIME_B) 105#define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS) 106#define QIF_USAGE (QIF_SPACE | QIF_INODES) 107#define QIF_TIMES (QIF_BTIME | QIF_ITIME) 108#define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES) 109 110struct if_dqblk { 111 __u64 dqb_bhardlimit; 112 __u64 dqb_bsoftlimit; 113 __u64 dqb_curspace; 114 __u64 dqb_ihardlimit; 115 __u64 dqb_isoftlimit; 116 __u64 dqb_curinodes; 117 __u64 dqb_btime; 118 __u64 dqb_itime; 119 __u32 dqb_valid; 120}; 121 122/* 123 * Structure used for setting quota information about file via quotactl 124 * Following flags are used to specify which fields are valid 125 */ 126#define IIF_BGRACE 1 127#define IIF_IGRACE 2 128#define IIF_FLAGS 4 129#define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS) 130 131enum { 132 DQF_ROOT_SQUASH_B = 0, 133 DQF_SYS_FILE_B = 16, 134 /* Kernel internal flags invisible to userspace */ 135 DQF_PRIVATE 136}; 137 138/* Root squash enabled (for v1 quota format) */ 139#define DQF_ROOT_SQUASH (1 << DQF_ROOT_SQUASH_B) 140/* Quota stored in a system file */ 141#define DQF_SYS_FILE (1 << DQF_SYS_FILE_B) 142 143struct if_dqinfo { 144 __u64 dqi_bgrace; 145 __u64 dqi_igrace; 146 __u32 dqi_flags; /* DFQ_* */ 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_MAX, 181}; 182#define QUOTA_NL_A_MAX (__QUOTA_NL_A_MAX - 1) 183 184 185#endif /* _UAPI_LINUX_QUOTA_ */ 186