table of contents
- bullseye 3.0.115-1
- bullseye-backports 3.0.116-1~bpo11+1
- testing 3.0.116-1.1
- unstable 3.0.117-1
|mfsexports.cfg(5)||This is part of MooseFS||mfsexports.cfg(5)|
mfsexports.cfg - MooseFS access control for mfsmounts
The file mfsexports.cfg contains MooseFS access list for mfsmount clients.
Lines starting with # character are ignored as comments.
ADDRESS can be specified in several forms:
* all addresses n.n.n.n single IP address n.n.n.n/b IP class specified by network address and number of significant bits n.n.n.n/m.m.m.m IP class specified by network address and mask f.f.f.f-t.t.t.t IP range specified by from-to addresses (inclusive)
DIRECTORY can be / or path relative to MooseFS root; special value . means MFSMETA companion filesystem.
- ro, readonly
- export tree in read-only mode; this is default
- rw, readwrite
- export tree in read-write mode
- allows to mount any subdirectory of specified directory (similarly to NFS)
- allows reconnecting of already authenticated client from any IP address (the default is to check IP address on reconnect)
- disable testing of group access at mfsmaster level (it's still done at mfsmount level) - in this case "group" and "other" permissions are logically added; needed for supplementary groups to work (mfsmaster receives only user primary group information)
- administrative privileges - currently: allow changing of quota values and storage classes management
- maps root (uid=0) accesses to given user and group (similarly to maproot option in NFS mounts); USER and GROUP can be given either as name or number; if no group is specified, USER's primary group is used. Names are resolved on mfsmaster side (see note below).
- like above but maps all non privileged users (uid!=0) accesses to given user and group (see notes below).
- password=PASS, md5pass=MD5
- requires password authentication in order to access specified resource
- rejects access from clients older than specified
- mingoal=N, maxgoal=N
- specify range in which goal can be set by users
- mintrashtime=TDUR, maxtrashtime=TDUR
- specify range in which trashtime can be set by users
- do not allow the client to perform certain operations
Default options are: ro, maproot=999:999, mingoal=1, maxgoal=9, mintrashtime=0, maxtrashtime=4294967295.
USER and GROUP names (if not specified by explicit uid/gid number) are resolved on mfsmaster host.
TDUR can be specified as number without time unit (number of seconds) or combination of numbers with time units. Time units are: W,D,H,M,S. Order is important - less significant time units can't be defined before more significant time units. Time units are case insensitive.
Option mapall works in MooseFS in different way than in NFS, because MooseFS is using FUSE's "default_permissions" option. When mapall option is used, users see all objects with uid equal to mapped uid as their own and all other as root's objects. Similarly objects with gid equal to mapped gid are seen as objects with current user's primary group and all other objects as objects with group 0 (usually wheel). With mapall option set attribute cache in kernel is always turned off.
Option disable can take many parameters (operations to disable) in two ways: as a list separated by colons (:) or by repeating the option many times. List of operations that can be disabled:
chown - don't allow the client to perform the chown operation chmod - don't allow the client to perform the chmod operation symlink - don't allow the client to create symbolic links mkfifo - don't allow the client to create FIFOs mkdev - don't allow the client to create devices mksock - don't allow the client to create sockets mkdir - don't allow the client to create directories unlink - don't allow the client to remove non directory objects (will also deny move/rename operation if target inode already exists!) rmdir - don't allow the client to remove directories (will also deny move/rename operation if target inode already exists!) rename - don't allow the client to change inodes (files, directories) names move - don't allow the client to move inodes (files, directories) to another path link - don't allow the client to create hard links create - don't allow the client to create new files readdir - don't allow the client to list directories ('ls' command will not work) read - don't allow the client to read from files write - don't allow the client to write to files truncate - don't allow the client to shorten the length of a file with truncate command setlength - don't allow the client to increase the length of a file with truncate command appendchunks - don't allow the client to add chunks from one file to another (mfsappendchunks) snapshot - don't allow the client to create snapshots settrash - don't allow the client to change trash retention time setsclass - don't allow the client to set storage classes seteattr - don't allow the client to set mfs extra attributes setxattr - don't allow the client to set XATTRs setfacl - don't allow the client to set ACLs
* / ro 192.168.1.0/24 / rw 192.168.1.0/24 / rw,alldirs,maproot=0,password=passcode 10.0.0.0-10.0.0.5 /test rw,maproot=nobody,password=test 10.1.0.0/255.255.0.0 /public rw,mapall=1000:1000 10.2.0.0/16 / rw,alldirs,maproot=0,mintrashtime=2h30m,maxtrashtime=2w 192.168.1.0/24 / rw,disable=unlink:rmdir:truncate 192.168.1.0/24 / rw,disable=unlink,disable=rmdir,disable=truncate
Report bugs to <email@example.com>.
Copyright (C) 2021 Jakub Kruszona-Zawadzki, Core Technology Sp. z o.o.
This file is part of MooseFS.
MooseFS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2 (only).
MooseFS 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with MooseFS; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA or visit http://www.gnu.org/licenses/gpl-2.0.html
|August 2021||MooseFS 3.0.116-1|