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/types.h> 37 38 #define __DQUOT_VERSION__ "dquot_6.6.0" 39 40 #define MAXQUOTAS 3 41 #define USRQUOTA 0 /* element used for user quotas */ 42 #define GRPQUOTA 1 /* element used for group quotas */ 43 #define PRJQUOTA 2 /* element used for project quotas */ 44 45 /* 46 * Definitions for the default names of the quotas files. 47 */ 48 #define INITQFNAMES { \ 49 "user", /* USRQUOTA */ \ 50 "group", /* GRPQUOTA */ \ 51 "project", /* PRJQUOTA */ \ 52 "undefined", \ 53 }; 54 55 /* 56 * Command definitions for the 'quotactl' system call. 57 * The commands are broken into a main command defined below 58 * and a subcommand that is used to convey the type of 59 * quota that is being manipulated (see above). 60 */ 61 #define SUBCMDMASK 0x00ff 62 #define SUBCMDSHIFT 8 63 #define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK)) 64 65 #define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */ 66 #define Q_QUOTAON 0x800002 /* turn quotas on */ 67 #define Q_QUOTAOFF 0x800003 /* turn quotas off */ 68 #define Q_GETFMT 0x800004 /* get quota format used on given filesystem */ 69 #define Q_GETINFO 0x800005 /* get information about quota files */ 70 #define Q_SETINFO 0x800006 /* set information about quota files */ 71 #define Q_GETQUOTA 0x800007 /* get user quota structure */ 72 #define Q_SETQUOTA 0x800008 /* set user quota structure */ 73 #define Q_GETNEXTQUOTA 0x800009 /* get disk limits and usage >= ID */ 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 #define QFMT_SHMEM 5 81 82 /* Size of block in which space limits are passed through the quota 83 * interface */ 84 #define QIF_DQBLKSIZE_BITS 10 85 #define QIF_DQBLKSIZE (1 << QIF_DQBLKSIZE_BITS) 86 87 /* 88 * Quota structure used for communication with userspace via quotactl 89 * Following flags are used to specify which fields are valid 90 */ 91 enum { 92 QIF_BLIMITS_B = 0, 93 QIF_SPACE_B, 94 QIF_ILIMITS_B, 95 QIF_INODES_B, 96 QIF_BTIME_B, 97 QIF_ITIME_B, 98 }; 99 100 #define QIF_BLIMITS (1 << QIF_BLIMITS_B) 101 #define QIF_SPACE (1 << QIF_SPACE_B) 102 #define QIF_ILIMITS (1 << QIF_ILIMITS_B) 103 #define QIF_INODES (1 << QIF_INODES_B) 104 #define QIF_BTIME (1 << QIF_BTIME_B) 105 #define QIF_ITIME (1 << QIF_ITIME_B) 106 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS) 107 #define QIF_USAGE (QIF_SPACE | QIF_INODES) 108 #define QIF_TIMES (QIF_BTIME | QIF_ITIME) 109 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES) 110 111 struct if_dqblk { 112 __u64 dqb_bhardlimit; 113 __u64 dqb_bsoftlimit; 114 __u64 dqb_curspace; 115 __u64 dqb_ihardlimit; 116 __u64 dqb_isoftlimit; 117 __u64 dqb_curinodes; 118 __u64 dqb_btime; 119 __u64 dqb_itime; 120 __u32 dqb_valid; 121 }; 122 123 struct if_nextdqblk { 124 __u64 dqb_bhardlimit; 125 __u64 dqb_bsoftlimit; 126 __u64 dqb_curspace; 127 __u64 dqb_ihardlimit; 128 __u64 dqb_isoftlimit; 129 __u64 dqb_curinodes; 130 __u64 dqb_btime; 131 __u64 dqb_itime; 132 __u32 dqb_valid; 133 __u32 dqb_id; 134 }; 135 136 /* 137 * Structure used for setting quota information about file via quotactl 138 * Following flags are used to specify which fields are valid 139 */ 140 #define IIF_BGRACE 1 141 #define IIF_IGRACE 2 142 #define IIF_FLAGS 4 143 #define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS) 144 145 enum { 146 DQF_ROOT_SQUASH_B = 0, 147 DQF_SYS_FILE_B = 16, 148 /* Kernel internal flags invisible to userspace */ 149 DQF_PRIVATE 150 }; 151 152 /* Root squash enabled (for v1 quota format) */ 153 #define DQF_ROOT_SQUASH (1 << DQF_ROOT_SQUASH_B) 154 /* Quota stored in a system file */ 155 #define DQF_SYS_FILE (1 << DQF_SYS_FILE_B) 156 157 struct if_dqinfo { 158 __u64 dqi_bgrace; 159 __u64 dqi_igrace; 160 __u32 dqi_flags; /* DFQ_* */ 161 __u32 dqi_valid; 162 }; 163 164 /* 165 * Definitions for quota netlink interface 166 */ 167 #define QUOTA_NL_NOWARN 0 168 #define QUOTA_NL_IHARDWARN 1 /* Inode hardlimit reached */ 169 #define QUOTA_NL_ISOFTLONGWARN 2 /* Inode grace time expired */ 170 #define QUOTA_NL_ISOFTWARN 3 /* Inode softlimit reached */ 171 #define QUOTA_NL_BHARDWARN 4 /* Block hardlimit reached */ 172 #define QUOTA_NL_BSOFTLONGWARN 5 /* Block grace time expired */ 173 #define QUOTA_NL_BSOFTWARN 6 /* Block softlimit reached */ 174 #define QUOTA_NL_IHARDBELOW 7 /* Usage got below inode hardlimit */ 175 #define QUOTA_NL_ISOFTBELOW 8 /* Usage got below inode softlimit */ 176 #define QUOTA_NL_BHARDBELOW 9 /* Usage got below block hardlimit */ 177 #define QUOTA_NL_BSOFTBELOW 10 /* Usage got below block softlimit */ 178 179 enum { 180 QUOTA_NL_C_UNSPEC, 181 QUOTA_NL_C_WARNING, 182 __QUOTA_NL_C_MAX, 183 }; 184 #define QUOTA_NL_C_MAX (__QUOTA_NL_C_MAX - 1) 185 186 enum { 187 QUOTA_NL_A_UNSPEC, 188 QUOTA_NL_A_QTYPE, 189 QUOTA_NL_A_EXCESS_ID, 190 QUOTA_NL_A_WARNING, 191 QUOTA_NL_A_DEV_MAJOR, 192 QUOTA_NL_A_DEV_MINOR, 193 QUOTA_NL_A_CAUSED_ID, 194 QUOTA_NL_A_PAD, 195 __QUOTA_NL_A_MAX, 196 }; 197 #define QUOTA_NL_A_MAX (__QUOTA_NL_A_MAX - 1) 198 199 200 #endif /* _UAPI_LINUX_QUOTA_ */ 201