f8f5960e76
* auto-created meta volume Automatically create volume '.meta' sized 0.01% of the total space managed by uvol, the minimum size being 4 MiB. This volume should be used to keep metadata about stored volumes, such as container runtime configuration (in /var/run/uvol/.meta/uxc) or the database of installed container packages. * configurable LVM volume group Allow setting volume group to be used by uvol using UCI. This is useful on devices which do not boot off the device which should be used for uvol and hence cannot make use of autopart and physical volume detection based on kernel cmdline. Use option vg_name in uvol section of fstab UCI config package. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
83 lines
1.6 KiB
Bash
83 lines
1.6 KiB
Bash
#!/bin/sh
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UCI_SPOOLDIR="/var/spool/uvol"
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_uvol_init_spooldir() {
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[ ! -d "$(dirname "$UCI_SPOOLDIR")" ] && mkdir -p "$(dirname "$UCI_SPOOLDIR")"
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mkdir -m 0700 -p "$UCI_SPOOLDIR"
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}
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uvol_uci_add() {
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local volname="$1"
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local devname="$2"
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local mode="$3"
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local autofs=0
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local target="/var/run/uvol/$volname"
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local uuid uciname
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[ "$mode" = "ro" ] && autofs=1
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uciname="${volname//[-.]/_}"
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uciname="${uciname//[!([:alnum:]_)]}"
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uuid="$(/sbin/block info | grep "^$2" | xargs -n 1 echo | grep "^UUID=.*")"
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[ "$uuid" ] || return 22
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uuid="${uuid:5}"
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case "$uciname" in
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"_meta")
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target="/var/run/uvol/.meta"
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;;
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"_"*)
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return 1
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;;
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esac
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_uvol_init_spooldir
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if [ -e "${UCI_SPOOLDIR}/remove-$1" ]; then
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rm "${UCI_SPOOLDIR}/remove-$1"
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fi
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cat >"${UCI_SPOOLDIR}/add-$1" <<EOF
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set fstab.$uciname=mount
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set fstab.$uciname.uuid=$uuid
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set fstab.$uciname.target=$target
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set fstab.$uciname.options=$mode
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set fstab.$uciname.autofs=$autofs
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set fstab.$uciname.enabled=1
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EOF
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}
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uvol_uci_remove() {
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local volname="$1"
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local uciname
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uciname="${volname//[-.]/_}"
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uciname="${uciname//[!([:alnum:]_)]}"
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if [ -e "${UCI_SPOOLDIR}/add-$1" ]; then
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rm "${UCI_SPOOLDIR}/add-$1"
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return
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fi
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_uvol_init_spooldir
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cat >"${UCI_SPOOLDIR}/remove-$1" <<EOF
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delete fstab.$uciname
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EOF
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}
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uvol_uci_commit() {
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local volname="$1"
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local ucibatch
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for ucibatch in "${UCI_SPOOLDIR}/"*"-$volname"${volname+*} ; do
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[ -e "$ucibatch" ] || break
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uci batch < "$ucibatch"
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[ $? -eq 0 ] && rm "$ucibatch"
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done
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uci commit fstab
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return $?
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}
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uvol_uci_init() {
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uci -q get fstab.@uvol[0] && return
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uci add fstab uvol
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uci set fstab.@uvol[-1].initialized=1
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}
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