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Dovecot >=2.2.29 + Filesystem quota = incorrect storage information

Macka

20 Jun 2017 20 Jun '17

3:49 p.m.

Hi,

I have problem with quota storage information in dovecot-2.2.29 (and newer versions, too - 2.2.30.2). I use FS quota backend.

............................ # 2.2.29.1 (e0b76e3): /etc/dovecot/dovecot.conf # OS: Linux 4.4.68-1 x86_64

mail_plugins = quota

plugin { quota = fs:User quota:mount=/poczta:user quota2 = fs:Group quota:mount=/poczta:group }

protocol imap { mail_max_userip_connections = 10 mail_plugins = "imap_quota mail_log notify antispam" } .................................

After upgrade from 2.2.27 to 2.2.29 (newest 2.2.30.2 too), dovecot returns incorrect informations about quota storage:

# doveadm quota get -u myusername

Quota name Type Value Limit % User quota STORAGE 10960896 100000 10960

# ( echo "A1 GETQUOTAROOT INBOX"; echo "A2 logout" ) | /usr/lib64/dovecot/imap -u myusername

PREAUTH [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE NOTIFY SPECIAL-USE QUOTA] Logged in as myusername imap(myusername): Info: Logged out in=31 out=588
QUOTAROOT INBOX "User quota"
QUOTA "User quota" (STORAGE 10960896 100000) A1 OK Getquotaroot completed (0.001 + 0.000 secs).
BYE Logging out A2 OK Logout completed (0.001 + 0.000 secs).

Values are in BYTES and Limit in BLOCKS which gives insane information in %

Other server with older version 2.2.27 returns correct numbers (both in BLOCKS)

# doveadm quota get -u username2 Quota name Type Value Limit % user STORAGE 558336 614400 90

Is this a bug in new versions? How can I fix this?

-- macka

Show replies by date

Timo Sirainen

20 Jun 20 Jun

10:25 p.m.

On 20 Jun 2017, at 15.49, Macka dovecot@macka.pl wrote:

...

Hi,

I have problem with quota storage information in dovecot-2.2.29 (and newer versions, too - 2.2.30.2). I use FS quota backend.

...

After upgrade from 2.2.27 to 2.2.29 (newest 2.2.30.2 too), dovecot returns incorrect informations about quota storage:

Hmm. There are zero differences in quota-fs code between 2.2.27 and 2.2.30. Are you sure the difference isn't something else than Dovecot version?

Macka

21 Jun 21 Jun

6:46 p.m.

W dniu 20.06.2017 o 21:25, Timo Sirainen pisze:

...

On 20 Jun 2017, at 15.49, Macka dovecot@macka.pl wrote:

...
Hi,

I have problem with quota storage information in dovecot-2.2.29 (and newer versions, too - 2.2.30.2). I use FS quota backend. . After upgrade from 2.2.27 to 2.2.29 (newest 2.2.30.2 too), dovecot returns incorrect informations about quota storage: Hmm. There are zero differences in quota-fs code between 2.2.27 and 2.2.30. Are you sure the difference isn't something else than Dovecot version?

You are probably right.

It took me some time but it looks like the problem is in the glibc-2.25 library or rather in the header files used during the compilation (or maybe in something else). I recompiled (.src.rpm's from PLD linux distribution) v2.2.27 and v2.2.30.2 on another machine with glibc-2.24 and then I installed them on a machine with glibc-2.25 libraries.

Both dovecot's versions correctly show used space.

All dovecot's versions, compiled on a machine with glibc-2.25 and installed on the same machine, returns incorrect account used space.

Found differences quota.h files but do not know if it depends on it?

/usr/include/sys/quota.h (from glibc-headers-2.24-4.x86_64) - 7974 bytes

/* This just represents the non-kernel parts of . *

here's the corresponding copyright:
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.
1. 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.
1. 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 _SYS_QUOTA_H #define _SYS_QUOTA_H 1

#include #include

Select between different incompatible quota versions.
Default to the version used by Linux kernel version 2.4.22
or later. */ #ifndef _LINUX_QUOTA_VERSION

define _LINUX_QUOTA_VERSION 2

#endif

Convert diskblocks to blocks and the other way around.
currently only to fool the BSD source. :-) */ #define dbtob(num) ((num) << 10) #define btodb(num) ((num) >> 10)

Convert count of filesystem blocks to diskquota blocks, meant
for filesystems where i_blksize != BLOCK_SIZE */ #define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / BLOCK_SIZE)

Definitions for disk quotas imposed on the average user
(big brother finally hits Linux).
The following constants define the amount of time given a user
before the soft limits are treated as hard limits (usually resulting
in an allocation failure). The timer is started when the user crosses
their soft limit, it is reset when they go below their soft limit. */ #define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */ #define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */

#define MAXQUOTAS 2 #define USRQUOTA 0 /* element used for user quotas */ #define GRPQUOTA 1 /* element used for group quotas */

Definitions for the default names of the quotas files. */ #define INITQFNAMES {
"user", /* USRQUOTA */
"group", /* GRPQUOTA */
"undefined",
};

#define QUOTAFILENAME "quota" #define QUOTAGROUP "staff"

#define NR_DQHASH 43 /* Just an arbitrary number any suggestions ? */ #define NR_DQUOTS 256 /* Number of quotas active at one time */

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))

#if _LINUX_QUOTA_VERSION < 2 # define Q_QUOTAON 0x0100 /* enable quotas */ # define Q_QUOTAOFF 0x0200 /* disable quotas */ # define Q_GETQUOTA 0x0300 /* get limits and usage */ # define Q_SETQUOTA 0x0400 /* set limits and usage */ # define Q_SETUSE 0x0500 /* set usage */ # define Q_SYNC 0x0600 /* sync disk copy of a filesystems quotas */ # define Q_SETQLIM 0x0700 /* set limits */ # define Q_GETSTATS 0x0800 /* get collected stats */ # define Q_RSQUASH 0x1000 /* set root_squash option */ #else # 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 */ #endif

The following structure defines the format of the disk quota file
(as it appears on disk) - the file is an array of these structures
indexed by user or group number. */ #if _LINUX_QUOTA_VERSION < 2 struct dqblk { u_int32_t dqb_bhardlimit; /* absolute limit on disk blks alloc */ u_int32_t dqb_bsoftlimit; /* preferred limit on disk blks */ u_int32_t dqb_curblocks; /* current block count */ u_int32_t dqb_ihardlimit; /* maximum # allocated inodes */ u_int32_t dqb_isoftlimit; /* preferred inode limit */ u_int32_t dqb_curinodes; /* current # allocated inodes */ time_t dqb_btime; /* time limit for excessive disk use */ time_t dqb_itime; /* time limit for excessive files */ }; #else

/* Flags that indicate which fields in dqblk structure are valid. */ #define QIF_BLIMITS 1 #define QIF_SPACE 2 #define QIF_ILIMITS 4 #define QIF_INODES 8 #define QIF_BTIME 16 #define QIF_ITIME 32 #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 dqblk { u_int64_t dqb_bhardlimit; /* absolute limit on disk quota blocks alloc */ u_int64_t dqb_bsoftlimit; /* preferred limit on disk quota blocks */ u_int64_t dqb_curspace; /* current quota block count */ u_int64_t dqb_ihardlimit; /* maximum # allocated inodes */ u_int64_t dqb_isoftlimit; /* preferred inode limit */ u_int64_t dqb_curinodes; /* current # allocated inodes */ u_int64_t dqb_btime; /* time limit for excessive disk use */ u_int64_t dqb_itime; /* time limit for excessive files */ u_int32_t dqb_valid; /* bitmask of QIF_* constants */ }; #endif

Shorthand notation. */ #define dq_bhardlimit dq_dqb.dqb_bhardlimit #define dq_bsoftlimit dq_dqb.dqb_bsoftlimit #if _LINUX_QUOTA_VERSION < 2

define dq_curblocks dq_dqb.dqb_curblocks

#else # define dq_curspace dq_dqb.dqb_curspace # define dq_valid dq_dqb.dqb_valid #endif #define dq_ihardlimit dq_dqb.dqb_ihardlimit #define dq_isoftlimit dq_dqb.dqb_isoftlimit #define dq_curinodes dq_dqb.dqb_curinodes #define dq_btime dq_dqb.dqb_btime #define dq_itime dq_dqb.dqb_itime

#define dqoff(UID) ((loff_t)((UID) * sizeof (struct dqblk)))

#if _LINUX_QUOTA_VERSION < 2 struct dqstats { u_int32_t lookups; u_int32_t drops; u_int32_t reads; u_int32_t writes; u_int32_t cache_hits; u_int32_t pages_allocated; u_int32_t allocated_dquots; u_int32_t free_dquots; u_int32_t syncs; }; #else

/* Flags that indicate which fields in dqinfo structure are valid. */ # define IIF_BGRACE 1 # define IIF_IGRACE 2 # define IIF_FLAGS 4 # define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)

struct dqinfo { u_int64_t dqi_bgrace; u_int64_t dqi_igrace; u_int32_t dqi_flags; u_int32_t dqi_valid; }; #endif

__BEGIN_DECLS

extern int quotactl (int __cmd, const char *__special, int __id, caddr_t __addr) __THROW;

__END_DECLS

#endif /* sys/quota.h */

/usr/include/sys/quota.h (from glibc-headers-2.25-2.x86_64) - 5170 bytes

The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see http://www.gnu.org/licenses/. */

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.
1. 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.
1. 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 _SYS_QUOTA_H #define _SYS_QUOTA_H 1

#include #include

#include

Convert diskblocks to blocks and the other way around.
currently only to fool the BSD source. :-) */ #define dbtob(num) ((num) << 10) #define btodb(num) ((num) >> 10)

Convert count of filesystem blocks to diskquota blocks, meant for
filesystems where i_blksize != 1024. */ #define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / 1024)

Definitions for disk quotas imposed on the average user
(big brother finally hits Linux).
The following constants define the amount of time given a user
before the soft limits are treated as hard limits (usually resulting
in an allocation failure). The timer is started when the user crosses
their soft limit, it is reset when they go below their soft limit. */ #define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */ #define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */

#define QUOTAFILENAME "quota" #define QUOTAGROUP "staff"

#define NR_DQHASH 43 /* Just an arbitrary number any suggestions ? */ #define NR_DQUOTS 256 /* Number of quotas active at one time */

/* Old name for struct if_dqblk. */ struct dqblk { __uint64_t dqb_bhardlimit; /* absolute limit on disk quota blocks alloc */ __uint64_t dqb_bsoftlimit; /* preferred limit on disk quota blocks */ __uint64_t dqb_curspace; /* current quota block count */ __uint64_t dqb_ihardlimit; /* maximum # allocated inodes */ __uint64_t dqb_isoftlimit; /* preferred inode limit */ __uint64_t dqb_curinodes; /* current # allocated inodes */ __uint64_t dqb_btime; /* time limit for excessive disk use */ __uint64_t dqb_itime; /* time limit for excessive files */ __uint32_t dqb_valid; /* bitmask of QIF_* constants */ };

Shorthand notation. */ #define dq_bhardlimit dq_dqb.dqb_bhardlimit #define dq_bsoftlimit dq_dqb.dqb_bsoftlimit #define dq_curspace dq_dqb.dqb_curspace #define dq_valid dq_dqb.dqb_valid #define dq_ihardlimit dq_dqb.dqb_ihardlimit #define dq_isoftlimit dq_dqb.dqb_isoftlimit #define dq_curinodes dq_dqb.dqb_curinodes #define dq_btime dq_dqb.dqb_btime #define dq_itime dq_dqb.dqb_itime

#define dqoff(UID) ((loff_t)((UID) * sizeof (struct dqblk)))

/* Old name for struct if_dqinfo. */ struct dqinfo { __uint64_t dqi_bgrace; __uint64_t dqi_igrace; __uint32_t dqi_flags; __uint32_t dqi_valid; };

__BEGIN_DECLS

extern int quotactl (int __cmd, const char *__special, int __id, __caddr_t __addr) __THROW;

__END_DECLS

#endif /* sys/quota.h */

Macka

17 Oct 17 Oct

6:02 p.m.

W dniu 21.06.2017 o 17:46, Macka pisze:

...

W dniu 20.06.2017 o 21:25, Timo Sirainen pisze:

...
On 20 Jun 2017, at 15.49, Mackadovecot@macka.pl wrote:

...
Hi,

I have problem with quota storage information in dovecot-2.2.29 (and newer versions, too - 2.2.30.2). I use FS quota backend. . After upgrade from 2.2.27 to 2.2.29 (newest 2.2.30.2 too), dovecot returns incorrect informations about quota storage: Hmm. There are zero differences in quota-fs code between 2.2.27 and 2.2.30. Are you sure the difference isn't something else than Dovecot version?

You are probably right.

It took me some time but it looks like the problem is in the glibc-2.25 library or rather in the header files used during the compilation (or maybe in something else). I recompiled (.src.rpm's from PLD linux distribution) v2.2.27 and v2.2.30.2 on another machine with glibc-2.24 and then I installed them on a machine with glibc-2.25 libraries.

Both dovecot's versions correctly show used space.

All dovecot's versions, compiled on a machine with glibc-2.25 and installed on the same machine, returns incorrect account used space.

Found differences quota.h files but do not know if it depends on it?

*/usr/include/sys/quota.h (from glibc-headers-2.24-4.x86_64) - 7974 bytes*

/* This just represents the non-kernel parts of . * * here's the corresponding copyright: * 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. * 4. 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 _SYS_QUOTA_H #define _SYS_QUOTA_H 1

#include #include

/* * Select between different incompatible quota versions. * Default to the version used by Linux kernel version 2.4.22 * or later. */ #ifndef _LINUX_QUOTA_VERSION # define _LINUX_QUOTA_VERSION 2 #endif

/* * Convert diskblocks to blocks and the other way around. * currently only to fool the BSD source. :-) */ #define dbtob(num) ((num) << 10) #define btodb(num) ((num) >> 10)

/* * Convert count of filesystem blocks to diskquota blocks, meant * for filesystems where i_blksize != BLOCK_SIZE */ #define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / BLOCK_SIZE)

/* * Definitions for disk quotas imposed on the average user * (big brother finally hits Linux). * * The following constants define the amount of time given a user * before the soft limits are treated as hard limits (usually resulting * in an allocation failure). The timer is started when the user crosses * their soft limit, it is reset when they go below their soft limit. */ #define MAX_IQ_TIME 604800     /* (7*24*60*60) 1 week */ #define MAX_DQ_TIME 604800     /* (7*24*60*60) 1 week */

#define MAXQUOTAS 2 #define USRQUOTA 0             /* element used for user quotas */ #define GRPQUOTA 1             /* element used for group quotas */

/* * Definitions for the default names of the quotas files. */ #define INITQFNAMES {
"user",      /* USRQUOTA */
"group",   /* GRPQUOTA */
"undefined",
};

#define QUOTAFILENAME "quota" #define QUOTAGROUP "staff"

#define NR_DQHASH 43          /* Just an arbitrary number any suggestions ? */ #define NR_DQUOTS 256         /* Number of quotas active at one time */

/* * 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))

#if _LINUX_QUOTA_VERSION < 2 # define Q_QUOTAON 0x0100      /* enable quotas */ # define Q_QUOTAOFF 0x0200      /* disable quotas */ # define Q_GETQUOTA 0x0300      /* get limits and usage */ # define Q_SETQUOTA 0x0400      /* set limits and usage */ # define Q_SETUSE   0x0500      /* set usage */ # define Q_SYNC     0x0600      /* sync disk copy of a filesystems quotas */ # define Q_SETQLIM 0x0700      /* set limits */ # define Q_GETSTATS 0x0800      /* get collected stats */ # define Q_RSQUASH 0x1000      /* set root_squash option */ #else # 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 */ #endif

/* * The following structure defines the format of the disk quota file * (as it appears on disk) - the file is an array of these structures * indexed by user or group number. */ #if _LINUX_QUOTA_VERSION < 2 struct dqblk { u_int32_t dqb_bhardlimit;   /* absolute limit on disk blks alloc */ u_int32_t dqb_bsoftlimit;   /* preferred limit on disk blks */ u_int32_t dqb_curblocks;    /* current block count */ u_int32_t dqb_ihardlimit;   /* maximum # allocated inodes */ u_int32_t dqb_isoftlimit;   /* preferred inode limit */ u_int32_t dqb_curinodes;    /* current # allocated inodes */ time_t dqb_btime;           /* time limit for excessive disk use */ time_t dqb_itime;           /* time limit for excessive files */ }; #else

/* Flags that indicate which fields in dqblk structure are valid. */ #define QIF_BLIMITS     1 #define QIF_SPACE       2 #define QIF_ILIMITS     4 #define QIF_INODES      8 #define QIF_BTIME       16 #define QIF_ITIME       32 #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 dqblk { u_int64_t dqb_bhardlimit;   /* absolute limit on disk quota blocks alloc */ u_int64_t dqb_bsoftlimit;   /* preferred limit on disk quota blocks */ u_int64_t dqb_curspace;     /* current quota block count */ u_int64_t dqb_ihardlimit;   /* maximum # allocated inodes */ u_int64_t dqb_isoftlimit;   /* preferred inode limit */ u_int64_t dqb_curinodes;    /* current # allocated inodes */ u_int64_t dqb_btime;        /* time limit for excessive disk use */ u_int64_t dqb_itime;        /* time limit for excessive files */ u_int32_t dqb_valid;        /* bitmask of QIF_* constants */ }; #endif

/* * Shorthand notation. */ #define dq_bhardlimit   dq_dqb.dqb_bhardlimit #define dq_bsoftlimit   dq_dqb.dqb_bsoftlimit #if _LINUX_QUOTA_VERSION < 2 # define dq_curblocks   dq_dqb.dqb_curblocks #else # define dq_curspace    dq_dqb.dqb_curspace # define dq_valid       dq_dqb.dqb_valid #endif #define dq_ihardlimit   dq_dqb.dqb_ihardlimit #define dq_isoftlimit   dq_dqb.dqb_isoftlimit #define dq_curinodes    dq_dqb.dqb_curinodes #define dq_btime        dq_dqb.dqb_btime #define dq_itime        dq_dqb.dqb_itime

#define dqoff(UID)      ((loff_t)((UID) * sizeof (struct dqblk)))

#if _LINUX_QUOTA_VERSION < 2 struct dqstats { u_int32_t lookups; u_int32_t drops; u_int32_t reads; u_int32_t writes; u_int32_t cache_hits; u_int32_t pages_allocated; u_int32_t allocated_dquots; u_int32_t free_dquots; u_int32_t syncs; }; #else

/* Flags that indicate which fields in dqinfo structure are valid. */ # define IIF_BGRACE     1 # define IIF_IGRACE     2 # define IIF_FLAGS      4 # define IIF_ALL        (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)

struct dqinfo { u_int64_t dqi_bgrace; u_int64_t dqi_igrace; u_int32_t dqi_flags; u_int32_t dqi_valid; }; #endif

__BEGIN_DECLS

extern int quotactl (int __cmd, const char *__special, int __id, caddr_t __addr) __THROW;

__END_DECLS

#endif /* sys/quota.h */

*/usr/include/sys/quota.h (from glibc-headers-2.25-2.x86_64) - 5170 bytes*

/* This just represents the non-kernel parts of . Copyright (C) 1998-2017 Free Software Foundation, Inc. This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see http://www.gnu.org/licenses/. */

/* * 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. * 4. 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 _SYS_QUOTA_H #define _SYS_QUOTA_H 1

#include #include

#include

/* * Convert diskblocks to blocks and the other way around. * currently only to fool the BSD source. :-) */ #define dbtob(num) ((num) << 10) #define btodb(num) ((num) >> 10)

/* * Convert count of filesystem blocks to diskquota blocks, meant for * filesystems where i_blksize != 1024. */ #define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / 1024)

/* * Definitions for disk quotas imposed on the average user * (big brother finally hits Linux). * * The following constants define the amount of time given a user * before the soft limits are treated as hard limits (usually resulting * in an allocation failure). The timer is started when the user crosses * their soft limit, it is reset when they go below their soft limit. */ #define MAX_IQ_TIME 604800     /* (7*24*60*60) 1 week */ #define MAX_DQ_TIME 604800     /* (7*24*60*60) 1 week */

#define QUOTAFILENAME "quota" #define QUOTAGROUP "staff"

#define NR_DQHASH 43          /* Just an arbitrary number any suggestions ? */ #define NR_DQUOTS 256         /* Number of quotas active at one time */

/* Old name for struct if_dqblk. */ struct dqblk { __uint64_t dqb_bhardlimit; /* absolute limit on disk quota blocks alloc */ __uint64_t dqb_bsoftlimit; /* preferred limit on disk quota blocks */ __uint64_t dqb_curspace;    /* current quota block count */ __uint64_t dqb_ihardlimit; /* maximum # allocated inodes */ __uint64_t dqb_isoftlimit; /* preferred inode limit */ __uint64_t dqb_curinodes;   /* current # allocated inodes */ __uint64_t dqb_btime;       /* time limit for excessive disk use */ __uint64_t dqb_itime;       /* time limit for excessive files */ __uint32_t dqb_valid;       /* bitmask of QIF_* constants */ };

/* * Shorthand notation. */ #define dq_bhardlimit   dq_dqb.dqb_bhardlimit #define dq_bsoftlimit   dq_dqb.dqb_bsoftlimit #define dq_curspace     dq_dqb.dqb_curspace #define dq_valid        dq_dqb.dqb_valid #define dq_ihardlimit   dq_dqb.dqb_ihardlimit #define dq_isoftlimit   dq_dqb.dqb_isoftlimit #define dq_curinodes    dq_dqb.dqb_curinodes #define dq_btime        dq_dqb.dqb_btime #define dq_itime        dq_dqb.dqb_itime

#define dqoff(UID)      ((loff_t)((UID) * sizeof (struct dqblk)))

/* Old name for struct if_dqinfo. */ struct dqinfo { __uint64_t dqi_bgrace; __uint64_t dqi_igrace; __uint32_t dqi_flags; __uint32_t dqi_valid; };

__BEGIN_DECLS

extern int quotactl (int __cmd, const char *__special, int __id, __caddr_t __addr) __THROW;

__END_DECLS

#endif /* sys/quota.h */

I have to resume the thread.

Apparently the problem is caused by the new /usr/include/sys/quota.h file (glibc-2.25 and newer)

When I use the quota.h with glibc-headers-2.25, the filesystem quota limits are badly displayed. When using the same glibc-2.25 library but replacing ONLY one quota.h file from the older version of glibc-2.24, after compilation, the limits are correct.

Timo Sirainen

10:57 p.m.

On 17 Oct 2017, at 18.02, Macka dovecot@macka.pl wrote:

...

I have to resume the thread.

Apparently the problem is caused by the new /usr/include/sys/quota.h file (glibc-2.25 and newer)

When I use the quota.h with glibc-headers-2.25, the filesystem quota limits are badly displayed. When using the same glibc-2.25 library but replacing ONLY one quota.h file from the older version of glibc-2.24, after compilation, the limits are correct.

Looks like they removed the _LINUX_QUOTA_VERSION define from quota.h. This causes Dovecot to assume it's quota v1. I wonder if there's a way to detect that it's a new quota.h or should we just drop support for _LINUX_QUOTA_VERSION==1..

Arkadiusz Miśkiewicz

18 Oct 18 Oct

8:36 a.m.

On Tuesday 17 of October 2017, Timo Sirainen wrote:

...

On 17 Oct 2017, at 18.02, Macka dovecot@macka.pl wrote:

...
I have to resume the thread.

Apparently the problem is caused by the new /usr/include/sys/quota.h file (glibc-2.25 and newer)

When I use the quota.h with glibc-headers-2.25, the filesystem quota limits are badly displayed. When using the same glibc-2.25 library but replacing ONLY one quota.h file from the older version of glibc-2.24, after compilation, the limits are correct.

Looks like they removed the _LINUX_QUOTA_VERSION define from quota.h. This causes Dovecot to assume it's quota v1. I wonder if there's a way to detect that it's a new quota.h or should we just drop support for _LINUX_QUOTA_VERSION==1..

Just reverse conditions?

Assume quota version 2 and if _LINUX_QUOTA_VERSION is defined and ==1 then go for version 1.

-- Arkadiusz Miśkiewicz, arekm / ( maven.pl | pld-linux.org )

Macka

12:40 p.m.

W dniu 17.10.2017 o 21:57, Timo Sirainen pisze:

...

On 17 Oct 2017, at 18.02, Macka wrote:

...
I have to resume the thread.

Apparently the problem is caused by the new /usr/include/sys/quota.h file (glibc-2.25 and newer)

When I use the quota.h with glibc-headers-2.25, the filesystem quota limits are badly displayed. When using the same glibc-2.25 library but replacing ONLY one quota.h file from the older version of glibc-2.24, after compilation, the limits are correct. Looks like they removed the _LINUX_QUOTA_VERSION define from quota.h. This causes Dovecot to assume it's quota v1. I wonder if there's a way to detect that it's a new quota.h or should we just drop support for _LINUX_QUOTA_VERSION==1..

Simple patch for dovecot-2.2.32-1.src.rpm from PLD Linux Distribution. # diff -urN dovecot.spec.orig dovecot.spec --- dovecot.spec.orig 2017-08-25 09:07:19.808464432 +0200 +++ dovecot.spec 2017-10-18 11:08:20.077955941 +0200 @@ -175,7 +175,7 @@ %{__automake} %configure \ ac_cv_prog_VALGRIND=no \ - CPPFLAGS="%{rpmcppflags} -I/usr/include/libstemmer" \ + CPPFLAGS="%{rpmcppflags} -I/usr/include/libstemmer -D_LINUX_QUOTA_VERSION=2" \ --disable-static \ %{?debug:--enable-debug} \ %{?with_ldap:--with-ldap=yes} \ Added # define _LINUX_QUOTA_VERSION 2 to /usr/include/sys/quota.h solves the problem too, but only temporarily, until the next update of the original library.

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6 comments

3 participants

participants (3)

Arkadiusz Miśkiewicz
Macka
Timo Sirainen

Dovecot >=2.2.29 + Filesystem quota = incorrect storage information

Macka

Timo Sirainen

Macka

*/usr/include/sys/quota.h (from glibc-headers-2.24-4.x86_64) - 7974 bytes*

define _LINUX_QUOTA_VERSION 2

define dq_curblocks dq_dqb.dqb_curblocks

*/usr/include/sys/quota.h (from glibc-headers-2.25-2.x86_64) - 5170 bytes*

Macka

*/usr/include/sys/quota.h (from glibc-headers-2.24-4.x86_64) - 7974 bytes*

*/usr/include/sys/quota.h (from glibc-headers-2.25-2.x86_64) - 5170 bytes*

Timo Sirainen

Arkadiusz Miśkiewicz

Macka

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participants (3)

/usr/include/sys/quota.h (from glibc-headers-2.24-4.x86_64) - 7974 bytes

/usr/include/sys/quota.h (from glibc-headers-2.25-2.x86_64) - 5170 bytes

/usr/include/sys/quota.h (from glibc-headers-2.24-4.x86_64) - 7974 bytes

/usr/include/sys/quota.h (from glibc-headers-2.25-2.x86_64) - 5170 bytes