mirror of
git://sourceware.org/git/lvm2.git
synced 2024-10-27 18:55:19 +03:00
8c2779ba34
Set more secure bash failure mode for pipilines. Avoid using unset variables. Enhnace error reporting for failing command. Avoid using error via 'case..esac || error'.
836 lines
24 KiB
Bash
Executable File
836 lines
24 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# Copyright (C) 2007-2020 Red Hat, Inc. All rights reserved.
|
|
#
|
|
# This file is part of LVM2.
|
|
#
|
|
# This copyrighted material is made available to anyone wishing to use,
|
|
# modify, copy, or redistribute it subject to the terms and conditions
|
|
# of the GNU General Public License v.2.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software Foundation,
|
|
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
#
|
|
# Author: Zdenek Kabelac <zkabelac at redhat.com>
|
|
#
|
|
# Script for resizing devices (usable for LVM resize)
|
|
#
|
|
# Needed utilities:
|
|
# mount, umount, grep, readlink, blockdev, blkid, fsck, xfs_check, cryptsetup
|
|
#
|
|
# ext2/ext3/ext4: resize2fs, tune2fs
|
|
# reiserfs: resize_reiserfs, reiserfstune
|
|
# xfs: xfs_growfs, xfs_info
|
|
#
|
|
# Return values:
|
|
# 0 success
|
|
# 1 error
|
|
# 2 break detected
|
|
# 3 unsupported online filesystem check for given mounted fs
|
|
|
|
set -euE -o pipefail
|
|
|
|
TOOL=fsadm
|
|
|
|
_SAVEPATH=$PATH
|
|
PATH="/sbin:/usr/sbin:/bin:/usr/sbin:$PATH"
|
|
|
|
# utilities
|
|
TUNE_EXT=tune2fs
|
|
RESIZE_EXT=resize2fs
|
|
TUNE_REISER=reiserfstune
|
|
RESIZE_REISER=resize_reiserfs
|
|
TUNE_XFS=xfs_info
|
|
RESIZE_XFS=xfs_growfs
|
|
|
|
MOUNT=mount
|
|
UMOUNT=umount
|
|
MKDIR=mkdir
|
|
RMDIR=rmdir
|
|
BLOCKDEV=blockdev
|
|
BLKID=blkid
|
|
DATE=date
|
|
GREP=grep
|
|
READLINK=readlink
|
|
READLINK_E="-e"
|
|
FSCK=fsck
|
|
XFS_CHECK=xfs_check
|
|
# XFS_REPAIR -n is used when XFS_CHECK is not found
|
|
XFS_REPAIR=xfs_repair
|
|
CRYPTSETUP=cryptsetup
|
|
|
|
# user may override lvm location by setting LVM_BINARY
|
|
LVM=${LVM_BINARY:-lvm}
|
|
|
|
YES="${_FSADM_YES-}"
|
|
DRY=0
|
|
VERB=
|
|
FORCE=
|
|
EXTOFF=${_FSADM_EXTOFF:-0}
|
|
DO_LVRESIZE=0
|
|
FSTYPE=unknown
|
|
VOLUME=unknown
|
|
TEMPDIR="${TMPDIR:-/tmp}/${TOOL}_${RANDOM}$$/m"
|
|
DM_DEV_DIR="${DM_DEV_DIR:-/dev}"
|
|
BLOCKSIZE=
|
|
BLOCKCOUNT=
|
|
MOUNTPOINT=
|
|
MOUNTED=
|
|
REMOUNT=
|
|
PROCDIR="/proc"
|
|
PROCMOUNTS="$PROCDIR/mounts"
|
|
PROCSELFMOUNTINFO="$PROCDIR/self/mountinfo"
|
|
NULL="$DM_DEV_DIR/null"
|
|
|
|
IFS_OLD=$IFS
|
|
# without bash $'\n'
|
|
NL='
|
|
'
|
|
|
|
tool_usage() {
|
|
echo "${TOOL}: Utility to resize or check the filesystem on a device"
|
|
echo
|
|
echo " ${TOOL} [options] check <device>"
|
|
echo " - Check the filesystem on device using fsck"
|
|
echo
|
|
echo " ${TOOL} [options] resize <device> [<new_size>[BKMGTPE]]"
|
|
echo " - Change the size of the filesystem on device to new_size"
|
|
echo
|
|
echo " Options:"
|
|
echo " -h | --help Show this help message"
|
|
echo " -v | --verbose Be verbose"
|
|
echo " -e | --ext-offline unmount filesystem before ext2/ext3/ext4 resize"
|
|
echo " -f | --force Bypass sanity checks"
|
|
echo " -n | --dry-run Print commands without running them"
|
|
echo " -l | --lvresize Resize given device (if it is LVM device)"
|
|
echo " -c | --cryptresize Resize given crypt device"
|
|
echo " -y | --yes Answer \"yes\" at any prompts"
|
|
echo
|
|
echo " new_size - Absolute number of filesystem blocks to be in the filesystem,"
|
|
echo " or an absolute size using a suffix (in powers of 1024)."
|
|
echo " If new_size is not supplied, the whole device is used."
|
|
|
|
exit
|
|
}
|
|
|
|
verbose() {
|
|
test -z "$VERB" || echo "$TOOL:" "$@"
|
|
}
|
|
|
|
# Support multi-line error messages
|
|
error() {
|
|
for i in "$@" ; do
|
|
echo "$TOOL: $i" >&2
|
|
done
|
|
cleanup 1
|
|
}
|
|
|
|
dry() {
|
|
if [ "$DRY" -ne 0 ]; then
|
|
verbose "Dry execution" "$@"
|
|
return 0
|
|
fi
|
|
verbose "Executing" "$@"
|
|
$@
|
|
}
|
|
|
|
# Accept as succss also return code 1 with fsck
|
|
accept_0_1() {
|
|
$@
|
|
local ret="$?"
|
|
test "$ret" -eq 1 || return "$ret"
|
|
# Filesystem was corrected
|
|
}
|
|
|
|
cleanup() {
|
|
trap '' 2
|
|
# reset MOUNTPOINT - avoid recursion
|
|
test "$MOUNTPOINT" = "$TEMPDIR" && MOUNTPOINT="" temp_umount
|
|
if [ -n "$REMOUNT" ]; then
|
|
verbose "Remounting unmounted filesystem back"
|
|
dry "$MOUNT" "$VOLUME" "$MOUNTED"
|
|
fi
|
|
IFS=$IFS_OLD
|
|
trap 2
|
|
|
|
test "$1" -eq 2 && verbose "Break detected"
|
|
|
|
if [ "$DO_LVRESIZE" -eq 2 ]; then
|
|
# start LVRESIZE with the filesystem modification flag
|
|
# and allow recursive call of fsadm
|
|
_FSADM_YES=$YES
|
|
_FSADM_EXTOFF=$EXTOFF
|
|
export _FSADM_YES _FSADM_EXTOFF
|
|
unset FSADM_RUNNING
|
|
test -n "$LVM_BINARY" && PATH=$_SAVEPATH
|
|
dry exec "$LVM" lvresize $VERB $FORCE -r -L"${NEWSIZE_ORIG}b" "$VOLUME_ORIG"
|
|
fi
|
|
|
|
# error exit status for break
|
|
exit "${1:-1}"
|
|
}
|
|
|
|
# convert parameter from Exa/Peta/Tera/Giga/Mega/Kilo/Bytes and blocks
|
|
# (2^(60/50/40/30/20/10/0))
|
|
decode_size() {
|
|
case "$1" in
|
|
*[eE]) NEWSIZE=$(( ${1%[eE]} * 1152921504606846976 )) ;;
|
|
*[pP]) NEWSIZE=$(( ${1%[pP]} * 1125899906842624 )) ;;
|
|
*[tT]) NEWSIZE=$(( ${1%[tT]} * 1099511627776 )) ;;
|
|
*[gG]) NEWSIZE=$(( ${1%[gG]} * 1073741824 )) ;;
|
|
*[mM]) NEWSIZE=$(( ${1%[mM]} * 1048576 )) ;;
|
|
*[kK]) NEWSIZE=$(( ${1%[kK]} * 1024 )) ;;
|
|
*[bB]) NEWSIZE=${1%[bB]} ;;
|
|
*) NEWSIZE=$(( $1 * $2 )) ;;
|
|
esac
|
|
#NEWBLOCKCOUNT=$(round_block_size $NEWSIZE $2)
|
|
NEWBLOCKCOUNT=$(( NEWSIZE / $2 ))
|
|
|
|
if [ "$DO_LVRESIZE" -eq 1 ]; then
|
|
# start lvresize, but first cleanup mounted dirs
|
|
DO_LVRESIZE=2
|
|
cleanup 0
|
|
fi
|
|
}
|
|
|
|
decode_major_minor() {
|
|
# 0x00000fff00 mask MAJOR
|
|
# 0xfffff000ff mask MINOR
|
|
|
|
#MINOR=$(( $1 / 1048576 ))
|
|
#MAJOR=$(( ($1 - ${MINOR} * 1048576) / 256 ))
|
|
#MINOR=$(( $1 - ${MINOR} * 1048576 - ${MAJOR} * 256 + ${MINOR} * 256))
|
|
|
|
echo "$(( ( $1 >> 8 ) & 4095 )):$(( ( ( $1 >> 12 ) & 268435200 ) | ( $1 & 255 ) ))"
|
|
}
|
|
|
|
# detect filesystem on the given device
|
|
# dereference device name if it is symbolic link
|
|
detect_fs() {
|
|
test -n "${VOLUME_ORIG-}" || VOLUME_ORIG=$1
|
|
VOLUME=${1/#"${DM_DEV_DIR}/"/}
|
|
VOLUME=$("$READLINK" $READLINK_E "$DM_DEV_DIR/$VOLUME")
|
|
test -n "$VOLUME" || error "Cannot get readlink \"$1\"."
|
|
RVOLUME=$VOLUME
|
|
case "$RVOLUME" in
|
|
# hardcoded /dev since udev does not create these entries elsewhere
|
|
/dev/dm-[0-9]*)
|
|
read -r <"/sys/block/${RVOLUME#/dev/}/dm/name" SYSVOLUME 2>&1 && VOLUME="$DM_DEV_DIR/mapper/$SYSVOLUME"
|
|
read -r <"/sys/block/${RVOLUME#/dev/}/dev" MAJORMINOR 2>&1 || error "Cannot get major:minor for \"$VOLUME\"."
|
|
MAJOR=${MAJORMINOR%%:*}
|
|
MINOR=${MAJORMINOR##*:}
|
|
;;
|
|
*)
|
|
STAT=$(stat --format "MAJOR=\$((0x%t)) MINOR=\$((0x%T))" "$RVOLUME")
|
|
test -n "$STAT" || error "Cannot get major:minor for \"$VOLUME\"."
|
|
eval "$STAT"
|
|
MAJORMINOR="${MAJOR}:${MINOR}"
|
|
;;
|
|
esac
|
|
# use null device as cache file to be sure about the result
|
|
# not using option '-o value' to be compatible with older version of blkid
|
|
FSTYPE=$("$BLKID" -c "$NULL" -s TYPE "$VOLUME")
|
|
test -n "$FSTYPE" || error "Cannot get FSTYPE of \"$VOLUME\"."
|
|
FSTYPE=${FSTYPE##*TYPE=\"} # cut quotation marks
|
|
FSTYPE=${FSTYPE%%\"*}
|
|
verbose "\"$FSTYPE\" filesystem found on \"$VOLUME\"."
|
|
}
|
|
|
|
|
|
# Check that passed mounted MAJOR:MINOR is not matching $MAJOR:MINOR of resized $VOLUME
|
|
validate_mounted_major_minor() {
|
|
test "$1" = "$MAJORMINOR" || {
|
|
local REFNAME
|
|
local CURNAME
|
|
REFNAME=$(dmsetup info -c -j "${1%%:*}" -m "${1##*:}" -o name --noheadings 2>"$NULL")
|
|
CURNAME=$(dmsetup info -c -j "$MAJOR" -m "$MINOR" -o name --noheadings 2>"$NULL")
|
|
error "Cannot ${CHECK+CHECK}${RESIZE+RESIZE} device \"$VOLUME\" without umounting filesystem $MOUNTED first." \
|
|
"Mounted filesystem is using device $CURNAME, but referenced device is $REFNAME." \
|
|
"Filesystem utilities currently do not support renamed devices."
|
|
}
|
|
}
|
|
|
|
# ATM fsresize & fsck tools are not able to work properly
|
|
# when mounted device has changed its name.
|
|
# So whenever such device no longer exists with original name
|
|
# abort further command processing
|
|
check_valid_mounted_device() {
|
|
local MOUNTEDMAJORMINOR
|
|
local VOL
|
|
local CURNAME
|
|
|
|
VOL=$("$READLINK" $READLINK_E "$1")
|
|
CURNAME=$(dmsetup info -c -j "$MAJOR" -m "$MINOR" -o name --noheadings)
|
|
# more confused, device is not DM....
|
|
local SUGGEST="Possibly device \"$1\" has been renamed to \"$CURNAME\"?"
|
|
test -n "$CURNAME" || SUGGEST="Mounted volume is not a device mapper device???"
|
|
|
|
test -n "$VOL" ||
|
|
error "Cannot access device \"$1\" referenced by mounted filesystem \"$MOUNTED\"." \
|
|
"$SUGGEST" \
|
|
"Filesystem utilities currently do not support renamed devices."
|
|
|
|
case "$VOL" in
|
|
# hardcoded /dev since kernel does not create these entries elsewhere
|
|
/dev/dm-[0-9]*)
|
|
read -r <"/sys/block/${VOL#/dev/}/dev" MOUNTEDMAJORMINOR 2>&1 || error "Cannot get major:minor for \"$VOLUME\"."
|
|
;;
|
|
*)
|
|
STAT=$(stat --format "MOUNTEDMAJORMINOR=\$((0x%t)):\$((0x%T))" "$VOL")
|
|
test -n "$STAT" || error "Cannot get major:minor for \"$VOLUME\"."
|
|
eval "$STAT"
|
|
;;
|
|
esac
|
|
|
|
validate_mounted_major_minor "$MOUNTEDMAJORMINOR"
|
|
}
|
|
|
|
detect_mounted_with_proc_self_mountinfo() {
|
|
# Check self mountinfo
|
|
# grab major:minor mounted_device mount_point
|
|
MOUNTED=$("$GREP" "^[0-9]* [0-9]* $MAJORMINOR " "$PROCSELFMOUNTINFO" 2>"$NULL" | head -1)
|
|
|
|
# If device is opened and not yet found as self mounted
|
|
# check all other mountinfos (since it can be mounted in cgroups)
|
|
# Use 'find' to not fail on to long list of args with too many pids
|
|
# only 1st. line is needed
|
|
test -z "$MOUNTED" &&
|
|
test "$(dmsetup info -c --noheading -o open -j "$MAJOR" -m "$MINOR")" -gt 0 &&
|
|
MOUNTED=$(find "$PROCDIR" -maxdepth 2 -name mountinfo -print0 | xargs -0 "$GREP" "^[0-9]* [0-9]* $MAJORMINOR " 2>"$NULL" | head -1 2>"$NULL")
|
|
|
|
# TODO: for performance compare with sed and stop with 1st. match:
|
|
# sed -n "/$MAJORMINOR/ {;p;q;}"
|
|
|
|
# extract 2nd field after ' - ' separator as mouted device
|
|
MOUNTDEV=$(echo "${MOUNTED##* - }" | cut -d ' ' -f 2)
|
|
MOUNTDEV=$(echo -n -e "$MOUNTDEV")
|
|
|
|
# extract 5th field as mount point
|
|
# echo -e translates \040 to spaces
|
|
MOUNTED=$(echo "$MOUNTED" | cut -d ' ' -f 5)
|
|
MOUNTED=$(echo -n -e "$MOUNTED")
|
|
|
|
test -n "$MOUNTED" || return 1 # Not seen mounted anywhere
|
|
|
|
check_valid_mounted_device "$MOUNTDEV"
|
|
}
|
|
|
|
# With older systems without /proc/*/mountinfo we may need to check
|
|
# every mount point as cannot easily depend on the name of mounted
|
|
# device (which could have been renamed).
|
|
# We need to visit every mount point and check it's major minor
|
|
detect_mounted_with_proc_mounts() {
|
|
MOUNTED=$("$GREP" "^$VOLUME[ \\t]" "$PROCMOUNTS")
|
|
|
|
# for empty string try again with real volume name
|
|
test -z "$MOUNTED" && MOUNTED=$("$GREP" "^$RVOLUME[ \\t]" "$PROCMOUNTS")
|
|
|
|
MOUNTDEV=$(echo -n -e "${MOUNTED%% *}")
|
|
# cut device name prefix and trim everything past mountpoint
|
|
# echo translates \040 to spaces
|
|
MOUNTED=${MOUNTED#* }
|
|
MOUNTED=$(echo -n -e "${MOUNTED%% *}")
|
|
|
|
# for systems with different device names - check also mount output
|
|
if test -z "$MOUNTED" ; then
|
|
# will not work with spaces in paths
|
|
MOUNTED=$(LC_ALL=C "$MOUNT" | "$GREP" "^$VOLUME[ \\t]")
|
|
test -z "$MOUNTED" && MOUNTED=$(LC_ALL=C "$MOUNT" | "$GREP" "^$RVOLUME[ \\t]")
|
|
MOUNTDEV=${MOUNTED%% on *}
|
|
MOUNTED=${MOUNTED##* on }
|
|
MOUNTED=${MOUNTED% type *} # allow type in the mount name
|
|
fi
|
|
|
|
if test -n "$MOUNTED" ; then
|
|
check_valid_mounted_device "$MOUNTDEV"
|
|
return 0 # mounted
|
|
fi
|
|
|
|
# If still nothing found and volume is in use
|
|
# check every known mount point against MAJOR:MINOR
|
|
if test "$(dmsetup info -c --noheading -o open -j "$MAJOR" -m "$MINOR")" -gt 0 ; then
|
|
while IFS=$'\n' read -r i ; do
|
|
MOUNTDEV=$(echo -n -e "${i%% *}")
|
|
MOUNTED=${i#* }
|
|
MOUNTED=$(echo -n -e "${MOUNTED%% *}")
|
|
STAT=$(stat --format "%d" "$MOUNTED")
|
|
validate_mounted_major_minor "$(decode_major_minor "$STAT")"
|
|
done < "$PROCMOUNTS"
|
|
fi
|
|
|
|
return 1 # nothing is mounted
|
|
}
|
|
|
|
# check if the given device is already mounted and where
|
|
# FIXME: resolve swap usage and device stacking
|
|
detect_mounted() {
|
|
if test -e "$PROCSELFMOUNTINFO"; then
|
|
detect_mounted_with_proc_self_mountinfo
|
|
elif test -e "$PROCMOUNTS"; then
|
|
detect_mounted_with_proc_mounts
|
|
else
|
|
error "Cannot detect mounted device \"$VOLUME\"."
|
|
fi
|
|
}
|
|
|
|
# get the full size of device in bytes
|
|
detect_device_size() {
|
|
# check if blockdev supports getsize64
|
|
"$BLOCKDEV" --help 2>&1 | "$GREP" getsize64 >"$NULL"
|
|
if test $? -eq 0; then
|
|
DEVSIZE=$("$BLOCKDEV" --getsize64 "$VOLUME")
|
|
test -n "$DEVSIZE" || error "Cannot read size of device \"$VOLUME\"."
|
|
else
|
|
DEVSIZE=$("$BLOCKDEV" --getsize "$VOLUME")
|
|
test -n "$DEVSIZE" || error "Cannot read size of device \"$VOLUME\"."
|
|
SSSIZE=$("$BLOCKDEV" --getss "$VOLUME")
|
|
test -n "$SSSIZE" || error "Cannot read sector size of device \"$VOLUME\"."
|
|
DEVSIZE=$(("$DEVSIZE" * "$SSSIZE"))
|
|
fi
|
|
}
|
|
|
|
# round up $1 / $2
|
|
# could be needed to gaurantee 'at least given size'
|
|
# but it makes many troubles
|
|
round_up_block_size() {
|
|
echo $(( ($1 + $2 - 1) / $2 ))
|
|
}
|
|
|
|
temp_mount() {
|
|
dry "$MKDIR" -p -m 0000 "$TEMPDIR" || error "Failed to create $TEMPDIR."
|
|
dry "$MOUNT" "$VOLUME" "$TEMPDIR" || error "Failed to mount $TEMPDIR."
|
|
}
|
|
|
|
temp_umount() {
|
|
dry "$UMOUNT" "$TEMPDIR" || error "Failed to umount \"$TEMPDIR\"."
|
|
dry "$RMDIR" "${TEMPDIR}" || error "Failed to remove \"$TEMPDIR\","
|
|
dry "$RMDIR" "${TEMPDIR%%m}" || error "Failed to remove \"${TEMPDIR%%m}\"."
|
|
}
|
|
|
|
yes_no() {
|
|
echo -n "$@" "? [Y|n] "
|
|
|
|
if [ -n "$YES" ]; then
|
|
echo y ; return 0
|
|
fi
|
|
|
|
while read -r -s -n 1 ANS ; do
|
|
case "$ANS" in
|
|
"y" | "Y" ) echo y ; return 0 ;;
|
|
"n" | "N") break ;;
|
|
"" ) if [ -t 1 ] ; then
|
|
echo y ; return 0
|
|
fi ;;
|
|
esac
|
|
done
|
|
|
|
echo n
|
|
return 1
|
|
}
|
|
|
|
try_umount() {
|
|
yes_no "Do you want to unmount \"$MOUNTED\"" && dry "$UMOUNT" "$MOUNTED" && return 0
|
|
error "Cannot proceed with mounted filesystem \"$MOUNTED\"."
|
|
}
|
|
|
|
validate_parsing() {
|
|
if test -z "$BLOCKSIZE" || test -z "$BLOCKCOUNT" ; then
|
|
error "Cannot parse $1 output."
|
|
fi
|
|
}
|
|
####################################
|
|
# Resize ext2/ext3/ext4 filesystem
|
|
# - unmounted or mounted for upsize
|
|
# - unmounted for downsize
|
|
####################################
|
|
resize_ext() {
|
|
local IS_MOUNTED=0
|
|
detect_mounted && IS_MOUNTED=1
|
|
|
|
verbose "Parsing $TUNE_EXT -l \"$VOLUME\""
|
|
for i in $(LC_ALL=C "$TUNE_EXT" -l "$VOLUME"); do
|
|
case "$i" in
|
|
"Block size"*) BLOCKSIZE=${i##* } ;;
|
|
"Block count"*) BLOCKCOUNT=${i##* } ;;
|
|
esac
|
|
done
|
|
validate_parsing "$TUNE_EXT"
|
|
decode_size "$1" "$BLOCKSIZE"
|
|
FSFORCE=$FORCE
|
|
|
|
if test "$NEWBLOCKCOUNT" -lt "$BLOCKCOUNT" || test "$EXTOFF" -eq 1 ; then
|
|
test "$IS_MOUNTED" -eq 1 && verbose "$RESIZE_EXT needs unmounted filesystem" && try_umount
|
|
REMOUNT=$MOUNTED
|
|
if test -n "$MOUNTED" ; then
|
|
# Forced fsck -f for umounted extX filesystem.
|
|
case "$-" in
|
|
*i*) FLAG=$YES ;;
|
|
*) FLAG="-p" ;;
|
|
esac
|
|
accept_0_1 dry "$FSCK" -f $FLAG "$VOLUME" || error "Failed to fsck $VOLUME"
|
|
fi
|
|
fi
|
|
|
|
verbose "Resizing filesystem on device \"$VOLUME\" to $NEWSIZE bytes ($BLOCKCOUNT -> $NEWBLOCKCOUNT blocks of $BLOCKSIZE bytes)"
|
|
dry "$RESIZE_EXT" $FSFORCE "$VOLUME" "$NEWBLOCKCOUNT"
|
|
}
|
|
|
|
#############################
|
|
# Resize reiserfs filesystem
|
|
# - unmounted for upsize
|
|
# - unmounted for downsize
|
|
#############################
|
|
resize_reiser() {
|
|
detect_mounted && verbose "ReiserFS resizes only unmounted filesystem" && try_umount
|
|
REMOUNT=$MOUNTED
|
|
verbose "Parsing $TUNE_REISER \"$VOLUME\""
|
|
for i in $(LC_ALL=C "$TUNE_REISER" "$VOLUME"); do
|
|
case "$i" in
|
|
"Blocksize"*) BLOCKSIZE=${i##*: } ;;
|
|
"Count of blocks"*) BLOCKCOUNT=${i##*: } ;;
|
|
esac
|
|
done
|
|
validate_parsing "$TUNE_REISER"
|
|
decode_size "$1" "$BLOCKSIZE"
|
|
verbose "Resizing \"$VOLUME\" $BLOCKCOUNT -> $NEWBLOCKCOUNT blocks ($NEWSIZE bytes, bs: $NEWBLOCKCOUNT)"
|
|
if [ -n "$YES" ]; then
|
|
echo y | dry "$RESIZE_REISER" -s "$NEWSIZE" "$VOLUME"
|
|
else
|
|
dry "$RESIZE_REISER" -s "$NEWSIZE" "$VOLUME"
|
|
fi
|
|
}
|
|
|
|
########################
|
|
# Resize XFS filesystem
|
|
# - mounted for upsize
|
|
# - cannot downsize
|
|
########################
|
|
resize_xfs() {
|
|
detect_mounted
|
|
MOUNTPOINT=$MOUNTED
|
|
if [ -z "$MOUNTED" ]; then
|
|
MOUNTPOINT=$TEMPDIR
|
|
temp_mount || error "Cannot mount Xfs filesystem."
|
|
fi
|
|
verbose "Parsing $TUNE_XFS \"$MOUNTPOINT\""
|
|
for i in $(LC_ALL=C "$TUNE_XFS" "$MOUNTPOINT"); do
|
|
case "$i" in
|
|
"data"*) BLOCKSIZE=${i##*bsize=} ; BLOCKCOUNT=${i##*blocks=} ;;
|
|
esac
|
|
done
|
|
BLOCKSIZE=${BLOCKSIZE%%[^0-9]*}
|
|
BLOCKCOUNT=${BLOCKCOUNT%%[^0-9]*}
|
|
validate_parsing "$TUNE_XFS"
|
|
decode_size "$1" "$BLOCKSIZE"
|
|
if [ "$NEWBLOCKCOUNT" -gt "$BLOCKCOUNT" ]; then
|
|
verbose "Resizing Xfs mounted on \"$MOUNTPOINT\" to fill device \"$VOLUME\""
|
|
dry "$RESIZE_XFS" "$MOUNTPOINT"
|
|
elif [ "$NEWBLOCKCOUNT" -eq "$BLOCKCOUNT" ]; then
|
|
verbose "Xfs filesystem already has the right size"
|
|
else
|
|
error "Xfs filesystem shrinking is unsupported."
|
|
fi
|
|
}
|
|
|
|
# Find active LUKS device on original volume
|
|
# 1) look for LUKS device with well-known UUID format (CRYPT-LUKS[12]-<uuid>-<dmname>)
|
|
# 2) the dm-crypt device has to be on top of original device (dont't support detached LUKS headers)
|
|
detect_luks_device() {
|
|
local _LUKS_VERSION
|
|
local _LUKS_UUID
|
|
|
|
CRYPT_NAME=""
|
|
CRYPT_DATA_OFFSET=""
|
|
|
|
_LUKS_VERSION=$("$CRYPTSETUP" luksDump "$VOLUME" 2>"$NULL" | "$GREP" "Version:")
|
|
|
|
if [ -z "$_LUKS_VERSION" ]; then
|
|
verbose "Failed to parse LUKS version on volume \"$VOLUME\""
|
|
return
|
|
fi
|
|
|
|
_LUKS_VERSION=${_LUKS_VERSION//[Version:[:space:]]/}
|
|
|
|
_LUKS_UUID=$("$CRYPTSETUP" luksDump "$VOLUME" 2>"$NULL" | "$GREP" "UUID:")
|
|
|
|
if [ -z "$_LUKS_UUID" ]; then
|
|
verbose "Failed to parse LUKS UUID on volume \"$VOLUME\""
|
|
return
|
|
fi
|
|
|
|
_LUKS_UUID="CRYPT-LUKS$_LUKS_VERSION-${_LUKS_UUID//[UID:[:space:]-]/}-"
|
|
|
|
CRYPT_NAME=$(dmsetup info -c --noheadings -S "UUID=~^$_LUKS_UUID&&segments=1&&devnos_used='$MAJOR:$MINOR'" -o name)
|
|
test -z "$CRYPT_NAME" || CRYPT_DATA_OFFSET=$(dmsetup table "$CRYPT_NAME" | cut -d ' ' -f 8)
|
|
|
|
# LUKS device must be active and mapped over volume where detected
|
|
if [ -z "$CRYPT_NAME" ] || [ -z "$CRYPT_DATA_OFFSET" ]; then
|
|
error "Can not find active LUKS device. Unlock \"$VOLUME\" volume first."
|
|
fi
|
|
}
|
|
|
|
######################################
|
|
# Resize active LUKS device
|
|
# - LUKS must be active for fs resize
|
|
######################################
|
|
resize_luks() {
|
|
local L_NEWSIZE
|
|
local L_NEWBLOCKCOUNT
|
|
local NAME
|
|
local SHRINK=0
|
|
|
|
detect_luks_device
|
|
|
|
NAME=$CRYPT_NAME
|
|
|
|
verbose "Found active LUKS device \"$NAME\" for volume \"$VOLUME\""
|
|
|
|
decode_size "$1" 512
|
|
|
|
if [ $((NEWSIZE % 512)) -gt 0 ]; then
|
|
error "New size is not sector alligned"
|
|
fi
|
|
|
|
if [ $((NEWBLOCKCOUNT - CRYPT_DATA_OFFSET)) -lt 1 ]; then
|
|
error "New size is smaller than minimum ($(((CRYPT_DATA_OFFSET + 1) * 512)) bytes) for LUKS device $VOLUME"
|
|
fi
|
|
|
|
L_NEWBLOCKCOUNT=$((NEWBLOCKCOUNT - CRYPT_DATA_OFFSET))
|
|
L_NEWSIZE=$(( L_NEWBLOCKCOUNT * 512))
|
|
|
|
VOLUME="$DM_DEV_DIR/mapper/$NAME"
|
|
detect_device_size
|
|
|
|
test "$DEVSIZE" -le "$L_NEWSIZE" || SHRINK=1
|
|
|
|
if [ $SHRINK -eq 1 ]; then
|
|
# shrink fs on LUKS device first
|
|
resize "$DM_DEV_DIR/mapper/$NAME" "$L_NEWSIZE"b
|
|
fi
|
|
|
|
# resize LUKS device
|
|
dry "$CRYPTSETUP" resize "$NAME" --size $L_NEWBLOCKCOUNT || error "Failed to resize active LUKS device"
|
|
|
|
if [ $SHRINK -eq 0 ]; then
|
|
# grow fs on top of LUKS device
|
|
resize "$DM_DEV_DIR/mapper/$NAME" "$L_NEWSIZE"b
|
|
fi
|
|
}
|
|
|
|
detect_crypt_device() {
|
|
local CRYPT_TYPE
|
|
local L_NEWSIZE
|
|
local TMP
|
|
|
|
which "$CRYPTSETUP" >"$NULL" 2>&1 || error "$CRYPTSETUP utility required to resize crypt device"
|
|
|
|
CRYPT_TYPE=$("$CRYPTSETUP" status "$1" 2>"$NULL" | "$GREP" "type:")
|
|
|
|
test -n "$CRYPT_TYPE" || error "$CRYPTSETUP failed to detect device type on $1."
|
|
|
|
CRYPT_TYPE=${CRYPT_TYPE##*[[:space:]]}
|
|
|
|
case "$CRYPT_TYPE" in
|
|
LUKS[12]|PLAIN)
|
|
verbose "\"$1\" crypt device is type $CRYPT_TYPE"
|
|
;;
|
|
*)
|
|
error "Unsupported crypt type \"$CRYPT_TYPE\""
|
|
esac
|
|
|
|
TMP=$NEWSIZE
|
|
decode_size "$2" 512
|
|
L_NEWSIZE=$NEWSIZE
|
|
NEWSIZE=$TMP
|
|
|
|
if [ $((L_NEWSIZE % 512)) -ne 0 ]; then
|
|
error "New size is not sector alligned"
|
|
fi
|
|
|
|
CRYPT_RESIZE_BLOCKS=$NEWBLOCKCOUNT
|
|
|
|
if [ "$DEVSIZE" -ge "$L_NEWSIZE" ]; then
|
|
CRYPT_SHRINK=1
|
|
else
|
|
CRYPT_GROW=1
|
|
fi
|
|
}
|
|
|
|
#################################
|
|
# Resize active crypt device
|
|
# (on direct user request only)
|
|
#################################
|
|
resize_crypt() {
|
|
dry "$CRYPTSETUP" resize "$1" --size $CRYPT_RESIZE_BLOCKS || error "$CRYPTSETUP failed to resize device $1"
|
|
}
|
|
|
|
####################
|
|
# Resize filesystem
|
|
####################
|
|
resize() {
|
|
NEWSIZE=$2
|
|
detect_fs "$1"
|
|
detect_device_size
|
|
verbose "Device \"$VOLUME\" size is $DEVSIZE bytes"
|
|
# if the size parameter is missing use device size
|
|
#if [ -n "$NEWSIZE" -a $NEWSIZE <
|
|
test -z "$NEWSIZE" && NEWSIZE=${DEVSIZE}b
|
|
NEWSIZE_ORIG=${NEWSIZE_ORIG:-$NEWSIZE}
|
|
IFS=$NL
|
|
test -z "${DO_CRYPTRESIZE-}" || detect_crypt_device "$VOLUME_ORIG" "$NEWSIZE_ORIG"
|
|
test -z "${CRYPT_GROW-}" || resize_crypt "$VOLUME_ORIG"
|
|
|
|
case "$FSTYPE" in
|
|
ext[234]) CMD=resize_ext ;;
|
|
"reiserfs") CMD=resize_reiser ;;
|
|
"xfs") CMD=resize_xfs ;;
|
|
"crypto_LUKS")
|
|
which "$CRYPTSETUP" >"$NULL" 2>&1 || error "$CRYPTSETUP utility required to resize LUKS volume"
|
|
CMD=resize_luks ;;
|
|
*) error "Filesystem \"$FSTYPE\" on device \"$VOLUME\" is not supported by this tool." ;;
|
|
esac
|
|
|
|
$CMD $NEWSIZE || error "$FSTYPE resize failed."
|
|
test -z "${CRYPT_SHRINK-}" || resize_crypt "$VOLUME_ORIG"
|
|
}
|
|
|
|
####################################
|
|
# Calclulate diff between two dates
|
|
# LC_ALL=C input is expected the
|
|
# only one supported
|
|
####################################
|
|
diff_dates() {
|
|
echo $(( $("$DATE" -u -d"$1" +%s 2>"$NULL") - $("$DATE" -u -d"$2" +%s 2>"$NULL") ))
|
|
}
|
|
|
|
check_luks() {
|
|
detect_luks_device
|
|
|
|
check "$DM_DEV_DIR/mapper/$CRYPT_NAME"
|
|
}
|
|
|
|
###################
|
|
# Check filesystem
|
|
###################
|
|
check() {
|
|
detect_fs "$1"
|
|
if detect_mounted ; then
|
|
verbose "Skipping filesystem check for device \"$VOLUME\" as the filesystem is mounted on $MOUNTED";
|
|
cleanup 3
|
|
fi
|
|
|
|
case "$FSTYPE" in
|
|
ext[234])
|
|
IFS_CHECK=$IFS
|
|
IFS=$NL
|
|
for i in $(LC_ALL=C "$TUNE_EXT" -l "$VOLUME"); do
|
|
case "$i" in
|
|
"Last mount"*) LASTMOUNT=${i##*: } ;;
|
|
"Last checked"*) LASTCHECKED=${i##*: } ;;
|
|
esac
|
|
done
|
|
case "$LASTMOUNT" in
|
|
*"n/a") ;; # nothing to do - system was not mounted yet
|
|
*)
|
|
LASTDIFF=$(diff_dates "$LASTMOUNT" "$LASTCHECKED")
|
|
if test "$LASTDIFF" -gt 0 ; then
|
|
verbose "Filesystem has not been checked after the last mount, using fsck -f"
|
|
FORCE="-f"
|
|
fi
|
|
;;
|
|
esac
|
|
IFS=$IFS_CHECK
|
|
esac
|
|
|
|
case "$FSTYPE" in
|
|
"xfs") if which "$XFS_CHECK" >"$NULL" 2>&1 ; then
|
|
dry "$XFS_CHECK" "$VOLUME" || error "Xfs check failed."
|
|
else
|
|
# Replacement for outdated xfs_check
|
|
# FIXME: for small devices we need to force_geometry,
|
|
# since we run in '-n' mode, it shouldn't be problem.
|
|
# Think about better way....
|
|
dry "$XFS_REPAIR" -n -o force_geometry "$VOLUME" || error "Xfs repair failed."
|
|
fi ;;
|
|
ext[234]|"reiserfs")
|
|
# check if executed from interactive shell environment
|
|
case "$-" in
|
|
*i*) FLAG=$YES ;;
|
|
*) FLAG="-p" ;;
|
|
esac
|
|
accept_0_1 dry "$FSCK" $FORCE $FLAG "$VOLUME" || error "Fsck $FSTYPE failed."
|
|
;;
|
|
"crypto_LUKS")
|
|
which "$CRYPTSETUP" >"$NULL" 2>&1 || error "$CRYPTSETUP utility required."
|
|
check_luks || error "Crypto luks check failed."
|
|
;;
|
|
*)
|
|
error "Filesystem \"$FSTYPE\" on device \"$VOLUME\" is not supported by this tool." ;;
|
|
esac
|
|
}
|
|
|
|
#############################
|
|
# start point of this script
|
|
# - parsing parameters
|
|
#############################
|
|
trap "cleanup 2" 2
|
|
|
|
# test if we are not invoked recursively
|
|
test -n "${FSADM_RUNNING-}" && exit 0
|
|
|
|
# test some prerequisities
|
|
for i in "$TUNE_EXT" "$RESIZE_EXT" "$TUNE_REISER" "$RESIZE_REISER" \
|
|
"$TUNE_XFS" "$RESIZE_XFS" "$MOUNT" "$UMOUNT" "$MKDIR" \
|
|
"$RMDIR" "$BLOCKDEV" "$BLKID" "$GREP" "$READLINK" \
|
|
"$DATE" "$FSCK" "$XFS_CHECK" "$XFS_REPAIR" "$LVM" ; do
|
|
test -n "$i" || error "Required command definitions in the script are missing!"
|
|
done
|
|
|
|
"$LVM" version >"$NULL" 2>&1 || error "Could not run lvm binary \"$LVM\"."
|
|
"$READLINK" -e / >"$NULL" 2>&1 || READLINK_E="-f"
|
|
TEST64BIT=$(( 1000 * 1000000000000 ))
|
|
test "$TEST64BIT" -eq 1000000000000000 || error "Shell does not handle 64bit arithmetic."
|
|
echo Y | "$GREP" Y >"$NULL" || error "Grep does not work properly."
|
|
test "$("$DATE" -u -d"Jan 01 00:00:01 1970" +%s)" -eq 1 || error "Date translation does not work."
|
|
|
|
|
|
if [ "$#" -eq 0 ] ; then
|
|
tool_usage
|
|
fi
|
|
|
|
CHECK=""
|
|
RESIZE=""
|
|
|
|
while [ "$#" -ne 0 ]
|
|
do
|
|
case "$1" in
|
|
"") ;;
|
|
"-h"|"--help") tool_usage ;;
|
|
"-v"|"--verbose") VERB="-v" ;;
|
|
"-n"|"--dry-run") DRY=1 ;;
|
|
"-f"|"--force") FORCE="-f" ;;
|
|
"-e"|"--ext-offline") EXTOFF=1 ;;
|
|
"-y"|"--yes") YES="-y" ;;
|
|
"-l"|"--lvresize") DO_LVRESIZE=1 ;;
|
|
"-c"|"--cryptresize") DO_CRYPTRESIZE=1 ;;
|
|
"check") CHECK=$2 ; shift ;;
|
|
"resize") RESIZE=$2 ; NEWSIZE=$3 ; shift 2 ;;
|
|
*) error "Wrong argument \"$1\". (see: $TOOL --help)"
|
|
esac
|
|
shift
|
|
done
|
|
|
|
test "$YES" = "-y" || YES=""
|
|
test "$EXTOFF" -eq 1 || EXTOFF=0
|
|
|
|
if [ -n "$CHECK" ]; then
|
|
check "$CHECK"
|
|
elif [ -n "$RESIZE" ]; then
|
|
export FSADM_RUNNING="fsadm"
|
|
resize "$RESIZE" "$NEWSIZE"
|
|
cleanup 0
|
|
else
|
|
error "Missing command. (see: $TOOL --help)"
|
|
fi
|