137 lines
3.8 KiB
Bash
137 lines
3.8 KiB
Bash
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#!/bin/bash
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get_devtype() {
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local typ
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typ=$(udevadm info --query=property --name="$1" | grep "^ID_FS_TYPE=" | sed 's|^ID_FS_TYPE=||')
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if [ "$typ" = "" ] ; then
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typ=$(blkid -c /dev/null "$1" -o value -s TYPE)
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fi
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echo "$typ"
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}
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get_pool_devices() {
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# also present in 99zfssystemd
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local poolconfigtemp
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local poolconfigoutput
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local pooldev
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local prefix
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local resolved
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poolconfigtemp=`mktemp`
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/usr/local/sbin/zpool list -v -H -P "$1" > "$poolconfigtemp" 2>&1
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if [ "$?" != "0" ] ; then
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poolconfigoutput=$(cat "$poolconfigtemp")
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dinfo "zfsexpandknowledge: pool $1 cannot be listed: $poolconfigoutput"
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else
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cat "$poolconfigtemp" | awk -F '\t' '/\t\/dev/ { print $2 }' | \
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while read pooldev ; do
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if [ -n "$pooldev" -a -e "$pooldev" ] ; then
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if [ -h "$pooldev" ] ; then
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resolved=`readlink -f "$pooldev"`
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else
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resolved="$pooldev"
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fi
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dinfo "zfsexpandknowledge: pool $1 has device $pooldev (which resolves to $resolved)"
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echo "$resolved"
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fi
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done
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fi
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rm -f "$poolconfigtemp"
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}
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find_zfs_block_devices() {
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local dev
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local blockdev
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local mp
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local fstype
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local pool
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local key
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local n
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local poolconfigoutput
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numfields=`head -1 /proc/self/mountinfo | awk '{print NF}'`
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if [ "$numfields" == "10" ] ; then
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fields="n n n n mp n n fstype dev n"
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else
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fields="n n n n mp n n n fstype dev n"
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fi
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while read $fields ; do
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if [ "$fstype" != "zfs" ]; then continue ; fi
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if [ "$mp" == "$1" ]; then
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pool=$(echo "$dev" | cut -d / -f 1)
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get_pool_devices "$pool"
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fi
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done < /proc/self/mountinfo
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}
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array_contains () {
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local e
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for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
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return 1
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}
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check() {
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local mp
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local dev
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local blockdevs
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local fstype
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local majmin
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local _slavedev
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local _slavedevname
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local _slavedevtype
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local _slavemajmin
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local _dev
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if [[ $hostonly ]]; then
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for mp in \
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"/" \
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"/etc" \
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"/bin" \
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"/sbin" \
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"/lib" \
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"/lib64" \
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"/usr" \
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"/usr/bin" \
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"/usr/sbin" \
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"/usr/lib" \
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"/usr/lib64" \
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"/boot";
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do
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mp=$(readlink -f "$mp")
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mountpoint "$mp" >/dev/null 2>&1 || continue
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blockdevs=$(find_zfs_block_devices "$mp")
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if [ -z "$blockdevs" ] ; then continue ; fi
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dinfo "zfsexpandknowledge: block devices backing ZFS dataset $mp: $blockdevs"
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for dev in $blockdevs
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do
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array_contains "$dev" "${host_devs[@]}" || host_devs+=("$dev")
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fstype=$(get_devtype "$dev")
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host_fs_types["$dev"]="$fstype"
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majmin=$(get_maj_min "$dev")
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if [[ -d /sys/dev/block/$majmin/slaves ]] ; then
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for _slavedev in /sys/dev/block/$majmin/slaves/*; do
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[[ -f $_slavedev/dev ]] || continue
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_slavedev=/dev/$(basename "$_slavedev")
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_slavedevname=$(udevadm info --query=property --name="$_slavedev" | grep "^DEVNAME=" | sed 's|^DEVNAME=||')
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_slavedevtype=$(get_devtype "$_slavedevname")
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_slavemajmin=$(get_maj_min "$_slavedevname")
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dinfo "zfsexpandknowledge: slave block device backing ZFS dataset $mp: $_slavedevname"
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array_contains "$_slavedevname" "${host_devs[@]}" || host_devs+=("$_slavedevname")
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host_fs_types["$_slavedevname"]="$_slavedevtype"
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done
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fi
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done
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done
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for a in "${host_devs[@]}"
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do
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dinfo "zfsexpandknowledge: host device $a"
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done
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for a in "${!host_fs_types[@]}"
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do
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dinfo "zfsexpandknowledge: device $a of type ${host_fs_types[$a]}"
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done
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fi
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return 1
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}
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