** Description changed: [Impact] - * Dovecot users using the fs quota plugin see wrong quota calculation - (overquota situation) - - * LTS version is affected. Bug would remain for a long time. - - * Patch is simple (1 line) + Dovecot users using the fs quota plugin see wrong quota calculation + (incorrect overquota situation). [Test Case] + On host system: + --------------- + $ multipass launch 18.04 --name ubuntu-bionic + $ multipass exec ubuntu-bionic -- bash - * Prerequisite: user quota configured on filesystem where dovecot stores your - email (e.g. /home partition) + In vm: + ------ + $ sudo passwd ubuntu # set to 'ubuntu' - * configure dovecot fs quota plugin. for details see below. + # Enable quota support on root partition + $ sudo apt-get install linux-image-extra-virtual + $ sudo nano /etc/fstab + LABEL=cloudimg-rootfs / ext4 usrquota,grpquota 0 0 + $ sudo mount -o remount / + $ sudo cat /proc/mounts | grep ' / ' + /dev/sda1 / ext4 rw,relatime,quota,usrquota,grpquota,data=ordered 0 0 - * use doveadm command to verify the result: - $doveadm quota get -u user - The result is shown in kb and as a percentage value + # Set a quota + $ sudo apt-get install quota + $ sudo quotacheck -ugm / + $ sudo quotaon -v / + /dev/sda1 [/]: group quotas turned on + /dev/sda1 [/]: user quotas turned on + $ sudo edquota -u ubuntu + Disk quotas for user ubuntu (uid 1000): + Filesystem blocks soft hard inodes soft hard + /dev/sda1 36 0 0 12 0 0 + + # Set these to some arbitrary values: + Filesystem blocks soft hard inodes soft hard + /dev/sda1 36 10 20 12 0 0 + $ sudo quota -vs ubuntu + Disk quotas for user ubuntu (uid 1000): + Filesystem space quota limit grace files quota limit grace + /dev/sda1 48K* 10K 20K 7days 14 0 0 + $ sudo quota -vs ubuntu + Disk quotas for user ubuntu (uid 1000): + Filesystem space quota limit grace files quota limit grace + /dev/sda1 48K* 10K 20K 7days 14 0 0 + $ sudo setquota -u ubuntu 200M 220M 0 0 / + $ sudo quota -v ubuntu + Disk quotas for user ubuntu (uid 1000): + Filesystem blocks quota limit grace files quota limit grace + /dev/sda1 52 204800 225280 15 0 0 + + # Install dovecot and configure with the quota plugin + $ sudo apt-get install dovecot-core dovecot-imapd + $ sudo sed -i 's/^#mail_plugins = /mail_plugins = quota/' /etc/dovecot/conf.d/10-mail.conf + $ sudo sed -i 's/ #mail_plugins = / mail_plugins = quota /' /etc/dovecot/conf.d/20-imap.conf + $ sudo sed -i 's/ #quota = fs:User quota/ quota = fs:User quota' /etc/dovecot/conf.d/90-quota.conf + $ sudo service dovecot restart + $ doveadm quota get -u ubuntu + Quota name Type Value Limit % + User quota STORAGE 53248 204800 26 + + # Connect via imap + $ openssl s_client -connect localhost:993 + * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN] Dovecot (Ubuntu) ready. + ? LOGIN ubuntu ubuntu + ? OK [... QUOTA] Logged in + ? GETQUOTAROOT INBOX + * QUOTAROOT INBOX "User quota" + * QUOTA "User quota" (STORAGE 53248 204800) + ? OK Getquotaroot completed (0.001 + 0.000 secs). + [Regression Potential] - * only users using the fs quota plugin are affected + * only users using the fs quota plugin are affected - + [Original Report] Packages: dovecot 2.2.33.2-1-ubuntu4.1 ubuntu 18.04.1 LTS The quota is erroneously calculated with the fs quota plugin. It was working fine on ubuntu 16.04 with the same config. + * Prerequisite: user quota configured on filesystem where dovecot + stores your email (e.g. /home partition) + + * configure dovecot fs quota plugin. + Quota configuration: plugin { quota = fs:User quota } + + * use doveadm command to verify the result: + $doveadm quota get -u user + The result is shown in kb and as a percentage value Here's the IMAP Session: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot (Ubuntu) ready. ? LOGIN user password ? OK [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 QUOTA] Logged in ? GETQUOTAROOT INBOX * QUOTAROOT INBOX "User quota" * QUOTA "User quota" (STORAGE 2775445504 4096001) ? OK Getquotaroot completed (0.001 + 0.000 secs). Storage should actually be around 2775445 KB. The quota is correct from my ext3 filesystem quota of 4096001 KB. Output of repquota: *** Report for user quotas on device /dev/sdc Block grace time: 7days; Inode grace time: 7days Block limits File limits User used soft hard grace used soft hard grace ---------------------------------------------------------------------- user -- 2710396 4096001 4194304 65743 0 0
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795919 Title: fs quota calculation is wrong To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dovecot/+bug/1795919/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs