saving uncommitted changes in /etc prior to emerge run
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udevil/._cfg0001_udevil.conf
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335
udevil/._cfg0001_udevil.conf
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##############################################################################
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#
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# udevil configuration file /etc/udevil/udevil.conf
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#
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# This file controls what devices, networks, and files users may mount and
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# unmount via udevil (set suid).
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#
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# IMPORTANT: IT IS POSSIBLE TO CREATE SERIOUS SECURITY PROBLEMS IF THIS FILE
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# IS MISCONFIGURED - EDIT WITH CARE
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#
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# Note: For greater control for specific users, including root, copy this
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# file to /etc/udevil/udevil-user-USERNAME.conf replacing USERNAME with the
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# desired username (eg /etc/udevil/udevil-user-jim.conf).
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#
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# Format:
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# OPTION = VALUE[, VALUE, ...]
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#
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# DO NOT USE QUOTES except literally
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# Lines beginning with # are ignored
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#
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##############################################################################
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# To log all uses of udevil, set log_file to a file path:
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# log_file = /var/log/udevil.log
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# Approximate number of days to retain log entries (0=forever, max=60):
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log_keep_days = 10
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# allowed_types determines what fstypes can be passed by a user to the u/mount
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# program, what device filesystems may be un/mounted implicitly, and what
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# network filesystems may be un/mounted.
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# It may also include the 'file' keyword, indicating that the user is allowed
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# to mount files (eg an ISO file). The $KNOWN_FILESYSTEMS variable may
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# be included to include common local filesystems as well as those listed in
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# /etc/filesystems and /proc/filesystems.
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# allowed_types_USERNAME, if present, is used to override allowed_types for
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# the specific user 'USERNAME'. For example, to allow user 'jim' to mount
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# only vfat filesystems, add:
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# allowed_types_jim = vfat
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# Setting allowed_types = * does NOT allow all types, as this is a security
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# risk, but does allow all recognized types.
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# allowed_types = $KNOWN_FILESYSTEMS, file, cifs, smbfs, nfs, curlftpfs, ftpfs, sshfs, davfs, tmpfs, ramfs
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allowed_types = $KNOWN_FILESYSTEMS, file
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# allowed_users is a list of users permitted to mount and unmount with udevil.
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# Wildcards (* or ?) may be used in the usernames. To allow all users,
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# specify "allowed_users=*". UIDs may be included using the form UID=1000.
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# For example: allowed_users = carl, UID=1000, pre*
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# Also note that permission to execute udevil may be limited to users belonging
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# to the group that owns /usr/bin/udevil, such as 'plugdev' or 'storage',
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# depending on installation.
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# allowed_users_FSTYPE, if present, is used to override allowed_users when
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# mounting or unmounting a specific fstype (eg nfs, ext3, file).
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# Note that when mounting a file, fstype will always be 'file' regardless of
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# the internal fstype of the file.
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# For example, to allow only user 'bob' to mount nfs shares, add:
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# allowed_users_nfs = bob
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# The root user is NOT automatically allowed to use udevil in some cases unless
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# listed here (except for unmounting anything or mounting fstab devices).
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allowed_users = *
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# allowed_groups is a list of groups permitted to mount and unmount with
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# udevil. The user MUST belong to at least one of these groups. Wildcards
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# or GIDs may NOT be used in group names, but a single * may be used to allow
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# all groups.
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# Also note that permission to execute udevil may be limited to users belonging
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# to the group that owns /usr/bin/udevil, such as 'plugdev' or 'storage',
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# depending on installation.
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# allowed_groups_FSTYPE, if present, is used to override allowed_groups when
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# mounting or unmounting a specific fstype (eg nfs, ext3, file). For example,
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# to allow only members of the 'network' group to mount smb and nfs shares,
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# use both of these lines:
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# allowed_groups_smbfs = network
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# allowed_groups_nfs = network
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# The root user is NOT automatically allowed to use udevil in some cases unless
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# listed here (except for unmounting anything or mounting fstab devices).
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allowed_groups = *
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# allowed_media_dirs specifies the media directories in which user mount points
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# may be located. The first directory which exists and does not contain a
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# wildcard will be used as the default media directory (normally /media or
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# /media/$USER).
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# The $USER variable, if included, will be replaced with the username of the
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# user running udevil. Wildcards may also be used in any directory EXCEPT the
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# default. Wildcards will not match a /, except a /** suffix for recursion.
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# allowed_media_dirs_FSTYPE, if present, is used to override allowed_media_dirs
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# when mounting or unmounting a specific fstype (eg ext2, nfs). For example,
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# to cause /media/network to be used as the default media directory for
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# nfs and ftpfs mounts, use these two lines:
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# allowed_media_dirs_nfs = /media/network, /media, /media/$USER
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# allowed_media_dirs_ftpfs = /media/network, /media, /media/$USER
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# NOTE: If you want only the user who mounted a device to have access to it
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# and be allowed to unmount it, specify /media/$USER as the first
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# allowed media directory (only /media/$USER is created on demand).
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# IMPORTANT: If an allowed file is mounted to a media directory, the user may
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# be permitted to unmount its associated loop device even though internal.
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# INCLUDING /MNT HERE IS NOT RECOMMENDED. ALL ALLOWED MEDIA DIRECTORIES
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# SHOULD BE OWNED AND WRITABLE ONLY BY ROOT.
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allowed_media_dirs = /media, /media/$USER, /run/media/$USER
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# allowed_devices is the first criteria for what block devices users may mount
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# or unmount. If a device is not listed in allowed_devices, it cannot be
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# un/mounted (unless in fstab). However, even if a device is listed, other
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# factors may prevent its use. For example, access to system internal devices
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# will be denied to normal users even if they are included in allowed_devices.
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# allowed_devices_FSTYPE, if present, is used to override allowed_devices when
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# mounting or unmounting a specific fstype (eg ext3, ntfs). For example, to
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# prevent all block devices containing an ext4 filesystem from being
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# un/mounted use:
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# allowed_devices_ext4 =
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# Note: Wildcards may be used, but a wildcard will never match a /, except
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# for "allowed_devices=*" which allows any device. The recommended setting is
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# allowed_devices = /dev/*
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# WARNING: ALLOWING USERS TO MOUNT DEVICES OUTSIDE OF /dev CAN CAUSE SERIOUS
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# SECURITY PROBLEMS. DO NOT ALLOW DEVICES IN /dev/shm
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allowed_devices = /dev/*
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# allowed_internal_devices causes udevil to treat any listed block devices as
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# removable, thus allowing normal users to un/mount them (providing they are
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# also listed in allowed_devices).
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# allowed_internal_devices_FSTYPE, if present, is used to override
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# allowed_internal_devices when mounting or unmounting a specific fstype
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# (eg ext3, ntfs). For example, to allow block devices containing a vfat
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# filesystem to be un/mounted even if they are system internal devices, use:
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# allowed_internal_devices_vfat = /dev/sdb*
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# Some removable esata drives look like internal drives to udevil. To avoid
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# this problem, they can be treated as removable with this setting.
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# WARNING: SETTING A SYSTEM DEVICE HERE CAN CAUSE SERIOUS SECURITY PROBLEMS.
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# allowed_internal_devices =
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# allowed_internal_uuids and allowed_internal_uuids_FSTYPE work similarly to
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# allowed_internal_devices, except that UUIDs are specified instead of devices.
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# For example, to allow un/mounting of an internal filesystem based on UUID:
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# allowed_internal_uuids = cc0c4489-8def-1e5b-a304-ab87c3cb626c0
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# WARNING: SETTING A SYSTEM DEVICE HERE CAN CAUSE SERIOUS SECURITY PROBLEMS.
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# allowed_internal_uuids =
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# forbidden_devices is used to prevent block devices from being un/mounted
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# even if other settings would allow them (except devices in fstab).
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# forbidden_devices_FSTYPE, if present, is used to override
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# forbidden_devices when mounting or unmounting a specific fstype
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# (eg ext3, ntfs). For example, to prevent device /dev/sdd1 from being
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# mounted when it contains an ntfs filesystem, use:
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# forbidden_devices_ntfs = /dev/sdd1
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# NOTE: device node paths are canonicalized before being tested, so forbidding
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# a link to a device will have no effect.
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forbidden_devices =
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# allowed_networks determines what hosts may be un/mounted by udevil users when
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# using nfs, cifs, smbfs, curlftpfs, ftpfs, or sshfs. Hosts may be specified
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# using a hostname (eg myserver.com) or IP address (192.168.1.100).
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# Wildcards may be used in hostnames and IP addresses, but CIDR notation
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# (192.168.1.0/16) is NOT supported. IP v6 is supported. For example:
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# allowed_networks = 127.0.0.1, 192.168.1.*, 10.0.0.*, localmachine, *.okay.com
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# Or, to prevent un/mounting of any network shares, set:
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# allowed_networks =
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# allowed_networks_FSTYPE, if present, is used to override allowed_networks
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# when mounting or unmounting a specific network fstype (eg nfs, cifs, sshfs,
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# curlftpfs). For example, to limit nfs and samba shares to only local
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# networks, use these two lines:
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# allowed_networks_nfs = 192.168.1.*, 10.0.0.*
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# allowed_networks_cifs = 192.168.1.*, 10.0.0.*
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allowed_networks = *
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# forbidden_networks and forbidden_networks_FSTYPE are used to specify networks
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# that are never allowed, even if other settings allow them (except fstab).
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# NO REVERSE LOOKUP IS PERFORMED, so including bad.com will only have an effect
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# if the user uses that hostname. IP lookup is always performed, so forbidding
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# an IP address will also forbid all corresponding hostnames.
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forbidden_networks =
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# allowed_files is used to determine what files in what directories may be
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# un/mounted. A user must also have read permission on a file to mount it.
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# Note: Wildcards may be used, but a wildcard will never match a /, except
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# for "allowed_files=*" which allows any file, and a /** suffix, which matches
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# all files recursively.
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# For example, to allow only files in the /share directory to be mounted, use:
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# allowed_files = /share/*
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# To allow all files in the /share directory AND all subdirectories use:
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# allowed_files = /share/**
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# NOTE: Specifying allowed_files_FSTYPE will NOT work because the fstype of
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# files is always 'file'.
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allowed_files = *
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# forbidden_files is used to specify files that are never allowed, even if
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# other settings allow them (except fstab). Specify a full path.
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# Note: Wildcards may be used, but a wildcard will never match a /, except
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# for "forbidden_files = *", or a /** suffix, which matches all recursively.
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# NOTE: file paths are canonicalized before being tested, so forbidding
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# a link to a file will have no effect.
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forbidden_files =
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# default_options specifies what options are always included when performing
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# a mount, in addition to any options the user may specify.
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# Note: When a device is present in /etc/fstab, and the user does not specify
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# a mount point, the device is mounted with normal user permissions using
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# the fstab entry, without these options.
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# default_options_FSTYPE, if present, is used to override default_options
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# when mounting a specific fstype (eg ext2, nfs).
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# The variables $USER, $UID, and $GID are changed to the user's username, UID,
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# and GID.
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# FOR GOOD SECURITY, default_options SHOULD ALWAYS INCLUDE: nosuid,noexec,nodev
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# WARNING: OPTIONS PRESENT OR MISSING CAN CAUSE SERIOUS SECURITY PROBLEMS.
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default_options = nosuid, noexec, nodev, noatime
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default_options_file = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID, ro
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# mount iso9660 with 'ro' to prevent mount read-only warning
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default_options_iso9660 = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID, ro, utf8
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default_options_udf = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID
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default_options_vfat = nosuid, noexec, nodev, noatime, fmask=0133, dmask=0022, uid=$UID, gid=$GID, utf8
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default_options_exfat = nosuid, noexec, nodev, noatime, umask=0077, uid=$UID, gid=$GID, iocharset=utf8, namecase=0, nonempty
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default_options_msdos = nosuid, noexec, nodev, noatime, fmask=0133, dmask=0022, uid=$UID, gid=$GID
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default_options_umsdos = nosuid, noexec, nodev, noatime, fmask=0133, dmask=0022, uid=$UID, gid=$GID
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default_options_ntfs = nosuid, noexec, nodev, noatime, fmask=0133, uid=$UID, gid=$GID, utf8
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default_options_cifs = nosuid, noexec, nodev, uid=$UID, gid=$GID
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default_options_smbfs = nosuid, noexec, nodev, uid=$UID, gid=$GID
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default_options_sshfs = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID, nonempty, allow_other
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default_options_curlftpfs = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID, nonempty, allow_other
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default_options_ftpfs = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID
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default_options_davfs = nosuid, noexec, nodev, uid=$UID, gid=$GID
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default_options_tmpfs = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID
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default_options_ramfs = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID
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# allowed_options determines all options that a user may specify when mounting.
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# All the options used in default_options above must be included here too, or
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# they will be rejected. If the user attempts to use an option not included
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# here, an error will result. Wildcards may be used.
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# allowed_options_FSTYPE, if present, is used to override allowed_options
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# when mounting a specific fstype (eg ext2, nfs).
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# The variables $USER, $UID, and $GID are changed to the user's username, UID,
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# and GID.
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# If you want to forbid remounts, remove 'remount' from here.
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# WARNING: OPTIONS HERE CAN CAUSE SERIOUS SECURITY PROBLEMS - CHOOSE CAREFULLY
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allowed_options = nosuid, noexec, nodev, noatime, fmask=0133, dmask=0022, uid=$UID, gid=$GID, ro, rw, sync, flush, iocharset=*, utf8, remount
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allowed_options_nfs = nosuid, noexec, nodev, noatime, ro, rw, sync, remount, port=*, rsize=*, wsize=*, hard, proto=*, timeo=*, retrans=*
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allowed_options_cifs = nosuid, noexec, nodev, ro, rw, remount, port=*, user=*, username=*, pass=*, password=*, guest, domain=*, uid=$UID, gid=$GID, credentials=*
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allowed_options_smbfs = nosuid, noexec, nodev, ro, rw, remount, port=*, user=*, username=*, pass=*, password=*, guest, domain=*, uid=$UID, gid=$GID, credentials=*
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allowed_options_sshfs = nosuid, noexec, nodev, noatime, ro, rw, uid=$UID, gid=$GID, nonempty, allow_other, idmap=user, BatchMode=yes, port=*
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allowed_options_curlftpfs = nosuid, noexec, nodev, noatime, ro, rw, uid=$UID, gid=$GID, nonempty, allow_other, user=*
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allowed_options_ftpfs = nosuid, noexec, nodev, noatime, ro, rw, port=*, user=*, pass=*, root=*, uid=$UID, gid=$GID
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allowed_options_exfat = nosuid, noexec, nodev, noatime, fmask=0133, dmask=0022, uid=$UID, gid=$GID, umask=0077, namecase=*, ro, rw, sync, flush, iocharset=*, remount, nonempty
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# mount_point_mode, if present and set to a non-empty value, will cause udevil
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# to set the mode (permissions) on the moint point after mounting If not
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# specified or if left empty, the mode is not changed. Mode must be octal
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# starting with a zero (0755).
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# mount_point_mode_FSTYPE, if present, is used to override mount_point_mode
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# when mounting a specific fstype (eg ext2, nfs).
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# NOT SETTING A MODE CAN HAVE SECURITY IMPLICATIONS FOR SOME FSTYPES
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mount_point_mode = 0755
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# don't set a mode for some types:
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mount_point_mode_sshfs =
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mount_point_mode_curlftpfs =
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mount_point_mode_ftpfs =
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# Use the settings below to change the default locations of programs used by
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# udevil, or (advanced topic) to redirect commands to your scripts.
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# When substituting scripts, make sure they are root-owned and accept the
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# options used by udevil (for example, the mount_program must accept --fake,
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# -o, -v, and other options valid to mount.)
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# Be sure to specify the full path and include NO OPTIONS or other arguments.
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# These programs may also be specified as configure options when building
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# udevil.
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# THESE PROGRAMS ARE RUN AS ROOT
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# mount_program = /bin/mount
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# umount_program = /bin/umount
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# losetup_program = /sbin/losetup
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# setfacl_program = /usr/bin/setfacl
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# validate_exec specifies a program or script which provides additional
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# validation of a mount or unmount command, beyond the checks performed by
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# udevil. The program is run as a normal user (if root runs udevil,
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# validate_exec will NOT be run). The program is NOT run if the user is
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# mounting a device without root priviledges (a device in fstab).
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# The program is passed the username, a printable description of what is
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# happening, and the entire udevil command line as the first three arguments.
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# The program must return an exit status of 0 to allow the mount or unmount
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# to proceed. If it returns non-zero, the user will be denied permission.
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# For example, validate_exec might specify a script which notifies you
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# of the command being run, or performs additional steps to authenticate the
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# user.
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# Specify a full path to the program, with NO options or arguments.
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# validate_exec =
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# validate_rootexec works similarly to validate_exec, except that the program
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# is run as root. validate_rootexec will also be run if the root user runs
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# udevil. If both validate_exec and validate_rootexec are specified,
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# validate_rootexec will run first, followed by validate_exec.
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# The program must return an exit status of 0 to allow the mount or unmount
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# to proceed. If it returns non-zero, the user will be denied permission.
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# Unless you are familiar with writing root scripts, it is recommended that
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# rootexec settings NOT be used, as it is easy to inadvertently open exploits.
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# THIS PROGRAM IS ALWAYS RUN AS ROOT, even if the user running udevil is not.
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# validate_rootexec =
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# success_exec is run after a successful mount, remount, or unmount. The
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# program is run as a normal user (if root runs udevil, success_exec
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# will NOT be run).
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# The program is passed the username, a printable description of what action
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# was taken, and the entire udevil command line as the first three arguments.
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# The program's exit status is ignored.
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# For example, success_exec might run a script which informs you of what action
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# was taken, and might perform further actions.
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# Specify a full path to the program, with NO options or arguments.
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# success_exec =
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# success_rootexec works similarly to success_exec, except that the program is
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# run as root. success_rootexec will also be run if the root user runs udevil.
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# If both success_exec and success_rootexec are specified, success_rootexec
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# will run first, followed by success_exec.
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# Unless you are familiar with writing root scripts, it is recommended that
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# rootexec settings NOT be used, as it is easy to inadvertently open exploits.
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# THIS PROGRAM IS ALWAYS RUN AS ROOT, even if the user running udevil is not.
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# success_rootexec =
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