Date: Fri, 17 Feb 2012 11:22:30 -0800 From: matt <sendtomatt@gmail.com> To: vermaden <vermaden@interia.pl> Cc: freebsd-hackers@freebsd.org, freebsd-current@freebsd.org Subject: Re: devd based AUTOMOUNTER Message-ID: <4F3EA8F6.6040702@gmail.com> In-Reply-To: <hkubftdrahxmtuzcfqzh@ziad> References: <hkubftdrahxmtuzcfqzh@ziad>
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On 02/17/12 09:49, vermaden wrote:
> Hi,
>
> I have finally made some effort on writing flexible yet very simple aut=
omounter for FreeBSD desktop.
>
> Feel free to submit me BUG reports ;)
>
> It currently supports these file formats:
> -- NTFS(rw) requires [port]sysutils/fusefs-ntfs[/port]
> -- FAT/FAT32
> -- exFAT requires [port]sysutils/fusefs-exfat[/port]
> -- EXT2
> -- EXT3
> -- EXT4 requires [port]sysutils/fusefs-ext4fuse[/port]
> -- UFS (DOH!)
>
> It keeps state of the mounted devices at /var/run/automount.state and l=
ogs all activities to /var/log/automount.log file.
>
> The place for the script is at /usr/local/sbin/automount.sh executable.=
>
> The only additional configuration it requires are those lines at the en=
d of /etc/devd.conf file along with restarting /etc/rc.d/devd daemon.
>
> notify 200 {
> match "system" "DEVFS";
> match "type" "CREATE";
> match "cdev" "(da|mmcsd)[0-9]+";
> action "/usr/local/sbin/automount.sh $cdev attach";
> };
>
> notify 200 {
> match "system" "DEVFS";
> match "type" "DESTROY";
> match "cdev" "(da|mmcsd)[0-9]+";
> action "/usr/local/sbin/automount.sh $cdev detach";
> };
>
> The /usr/local/sbin/automount.sh executable is here:
>
> #! /bin/sh
>
> PATH=3D/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
> LOG=3D"/var/log/automount.log"
> STATE=3D"/var/run/automount.state"
> DATEFMT=3D"%Y-%m-%d %H:%M:%S"
>
> __create_mount_point() { # /* 1=3DDEV */
> MNT=3D"/mnt/$( basename ${1} )"
> mkdir -p ${MNT}
> }
>
> __state_lock() {
> while [ -f ${STATE}.lock ]; do sleep 0.5; done
> :> ${STATE}.lock
> }
>
> __state_unlock() {
> rm ${STATE}.lock
> }
>
> __state_add() { # /* 1=3DDEV 2=3DPROVIDER 3=3DMNT */
> __state_lock
> echo "${1} ${2} ${3}" >> ${STATE}
> __state_unlock
> }
>
> __state_remove() { # /* 1=3DMNT 2=3DSTATE 3=3DLINE */
> LINE=3D$( grep -n -E "${1}$" ${2} | cut -d : -f 1 )
> sed -i '' ${3}d ${2}
> }
>
> __log() { # /* @=3DMESSAGE */
> echo $( date +"${DATEFMT}" ) ${@} >> ${LOG}
> }
>
> case ${2} in
> (attach)
> for I in /dev/${1}*
> do
> case $( file -L -s ${I} ) in
> (*NTFS*)
> __create_mount_point ${I}
> ntfs-3g ${I} ${MNT} # /* sysutils/fusefs-ntfs */
> __log "${I}:mount (ntfs)"
> ;;
> (*FAT*)
> __create_mount_point ${I}
> fsck_msdosfs -y ${I}
> mount_msdosfs -o large -o longnames -l -L pl_PL.ISO8859-2 -D =
cp852 ${I} ${MNT}
> __log "${I}:mount (fat)"
> ;;
> (*ext2*)
> __create_mount_point ${I}
> fsck.ext2 -y ${I}
> mount -t ext2fs ${I} ${MNT}
> __log "${I}:mount (ext2)"
> ;;
> (*ext3*)
> __create_mount_point ${I}
> fsck.ext3 -y ${I}
> mount -t ext2fs ${I} ${MNT}
> __log "${I}:mount (ext3)"
> ;;
> (*ext4*)
> __create_mount_point ${I}
> fsck.ext4 -y ${I}
> ext4fuse ${I} ${MNT} # /* sysutils/fusefs-ext4fuse */
> __log "${I}:mount (ext4)"
> ;;
> (*Unix\ Fast\ File*)
> __create_mount_point ${I}
> fsck_ufs -y ${I}
> mount ${I} ${MNT}
> __log "${I}:mount (ufs)"
> ;;
> (*)
> case $( dd < ${O} count=3D1 | strings | head -1 ) in
> (EXFAT)
> __create_mount_point ${I}
> mount.exfat ${I} ${MNT} # /* sysutils/fusefs-exfat */
> __log "${I}:mount (ufs)"
> ;;
> (*) continue ;;
> esac
> ;;
> esac
> __state_add ${I} $( mount | grep " ${MNT} " | awk '{printf $1}' )=
${MNT}
> done
> ;;
>
> (detach)
> MOUNTED=3D$( mount )
> __state_lock
> while read DEV PROVIDER MNT
> do
> TARGET=3D$( echo "${MOUNTED}" | grep -E "^${PROVIDER} " | awk '{p=
rint $3}' )
> [ -z ${TARGET} ] && {
> __state_remove ${MNT} ${STATE} ${LINE}
> continue
> }
> umount -f ${TARGET} &
> unset TARGET
> __state_remove ${MNT} ${STATE} ${LINE}
> __log "${DEV}:umount"
> done < ${STATE}
> __state_unlock
> __log "/dev/${1}:detach"
> ;;
>
> esac
>
>
> PS. Below are links for 'mirror' threads.
> http://forums.freebsd.org/showthread.php?t=3D29895
> http://daemonforums.org/showthread.php?t=3D6838
>
> Regards,
> vermaden
>
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> ---
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rg"
Some things to consider/test:
How do I set custom flags, like nosuid,noatime,nodev,noexec,async (or
sync) for mounts?
What if make a usb drive with an illegal name, existing name or other
dangerous values?
Can I use the automounter to either mount over another mount to
impersonate it, or can I overwrite arbitrary files or directories?
Some of these above things don't work on Linux with udev (i.e. gnome-vfs
automount gets some fairly generous flags automatically)
I didn't get a chance to test some of the naming things on Linux either,
as many drive formatting programs validate the name.
Something to consider,
Matt
Matt
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