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Current File : //sbin/fsadm
#!/bin/bash
#
# Copyright (C) 2007-2017 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

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" "$@"
	"$@"
}

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 "${1##*:}" -o name --noheadings 2>/dev/null)
		CURNAME=$(dmsetup info -c -j "$MAJOR" -m "$MINOR" -o name --noheadings 2>/dev/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
	local SUGGEST="Possibly device \"$1\" has been renamed to \"$CURNAME\"?"

	VOL=$("$READLINK" $READLINK_E "$1")
	CURNAME=$(dmsetup info -c -j "$MAJOR" -m "$MINOR" -o name --noheadings)
	# more confused, device is not DM....
	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 "$VOL" in
	  # hardcoded /dev  since udev does not create these entries elsewhere
	  /dev/dm-[0-9]*)
		read -r <"/sys/block/${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>/dev/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>/dev/null | head -1 2>/dev/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*) dry "$FSCK" $YES -f "$VOLUME" ;;
			  *) dry "$FSCK" -f -p "$VOLUME" ;;
			esac
		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 "$VOLUME" 2> /dev/null | "$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 "$VOLUME" 2> /dev/null | "$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 "$CRYPTSETUP" > /dev/null 2>&1 || error "$CRYPTSETUP utility required to resize crypt device"

	CRYPT_TYPE=$("$CRYPTSETUP" status "$1" 2> /dev/null | "$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=${DEVSIZE}b
	test -n "$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
	  "ext3"|"ext2"|"ext4") resize_ext $NEWSIZE ;;
	  "reiserfs") resize_reiser $NEWSIZE ;;
	  "xfs") resize_xfs $NEWSIZE ;;
	  "crypto_LUKS")
		which "$CRYPTSETUP" > /dev/null 2>&1 || error "$CRYPTSETUP utility required to resize LUKS volume"
		resize_luks $NEWSIZE ;;
	  *) error "Filesystem \"$FSTYPE\" on device \"$VOLUME\" is not supported by this tool." ;;
	esac || error "Resize $FSTYPE failed."
	test -z "$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 "$FSTYPE" in
	  "ext2"|"ext3"|"ext4")
		IFS_CHECK=$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" "$VOLUME"
		 else
			# Replacement for outdated xfs_check
			# FIXME: for small devices we need to force_geometry,
			# since we run in '-n' mode, it shouldn't be problem.
			# Think about better way....
			dry "$XFS_REPAIR" -n -o force_geometry "$VOLUME"
		 fi ;;
	  "ext2"|"ext3"|"ext4"|"reiserfs")
	        # check if executed from interactive shell environment
		case "$-" in
		  *i*) dry "$FSCK" $YES $FORCE "$VOLUME" ;;
		  *) dry "$FSCK" $FORCE -p "$VOLUME" ;;
		esac ;;
	  "crypto_LUKS")
		which "$CRYPTSETUP" > /dev/null 2>&1 || error "$CRYPTSETUP utility required."
		check_luks ;;
	  *)
		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

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

NineSec Team - 2022
Name
Size
Last Modified
Owner
Permissions
Options
..
--
May 29 2025 6:02:43
root
0755
agetty
67.383 KB
May 30 2023 5:42:35
root
0755
badblocks
34.32 KB
June 02 2022 2:59:32
root
0755
blkdeactivate
14.489 KB
February 13 2020 10:21:51
root
0755
blkdiscard
34.227 KB
May 30 2023 5:42:35
root
0755
blkid
118.258 KB
May 30 2023 5:42:35
root
0755
blkzone
70.227 KB
May 30 2023 5:42:35
root
0755
blockdev
66.227 KB
May 30 2023 5:42:35
root
0755
bridge
102.305 KB
February 13 2020 6:21:59
root
0755
capsh
30.305 KB
June 07 2023 3:02:37
root
0755
cfdisk
102.586 KB
May 30 2023 5:42:35
root
0755
chcpu
46.227 KB
May 30 2023 5:42:35
root
0755
ctrlaltdel
38.227 KB
May 30 2023 5:42:35
root
0755
debugfs
225.805 KB
June 02 2022 2:59:32
root
0755
depmod
170.336 KB
January 28 2022 3:49:50
root
0755
devlink
150.469 KB
February 13 2020 6:21:59
root
0755
dhclient
508.984 KB
January 31 2023 11:10:35
root
0755
dhclient-script
15.922 KB
January 31 2023 11:10:35
root
0755
dmeventd
50.234 KB
February 13 2020 10:21:51
root
0755
dmsetup
171.023 KB
February 13 2020 10:21:51
root
0755
dmstats
171.023 KB
February 13 2020 10:21:51
root
0755
dosfsck
58.078 KB
May 13 2018 12:59:39
root
0755
dosfslabel
54.078 KB
May 13 2018 12:59:39
root
0755
dumpe2fs
30.383 KB
June 02 2022 2:59:32
root
0755
e2fsck
327.211 KB
June 02 2022 2:59:32
root
0755
e2image
42.383 KB
June 02 2022 2:59:32
root
0755
e2label
106.555 KB
June 02 2022 2:59:32
root
0755
e2mmpstatus
30.383 KB
June 02 2022 2:59:32
root
0755
e2scrub
7.125 KB
June 02 2022 2:59:32
root
0755
e2scrub_all
5.269 KB
June 02 2022 2:59:32
root
0755
e2undo
22.375 KB
June 02 2022 2:59:32
root
0755
fatlabel
54.078 KB
May 13 2018 12:59:39
root
0755
fdisk
150.273 KB
May 30 2023 5:42:35
root
0755
findfs
14.227 KB
May 30 2023 5:42:35
root
0755
fsadm
23.543 KB
February 13 2020 10:21:51
root
0755
fsck
54.273 KB
May 30 2023 5:42:35
root
0755
fsck.cramfs
38.258 KB
May 30 2023 5:42:35
root
0755
fsck.ext2
327.211 KB
June 02 2022 2:59:32
root
0755
fsck.ext3
327.211 KB
June 02 2022 2:59:32
root
0755
fsck.ext4
327.211 KB
June 02 2022 2:59:32
root
0755
fsck.fat
58.078 KB
May 13 2018 12:59:39
root
0755
fsck.minix
122.25 KB
May 30 2023 5:42:35
root
0755
fsck.msdos
58.078 KB
May 13 2018 12:59:39
root
0755
fsck.vfat
58.078 KB
May 13 2018 12:59:39
root
0755
fsfreeze
14.227 KB
May 30 2023 5:42:35
root
0755
fstab-decode
14.305 KB
February 13 2020 7:38:21
root
0755
fstrim
70.227 KB
May 30 2023 5:42:35
root
0755
getcap
14.305 KB
June 07 2023 3:02:37
root
0755
getpcaps
14.305 KB
June 07 2023 3:02:37
root
0755
getty
67.383 KB
May 30 2023 5:42:35
root
0755
halt
973.227 KB
November 21 2023 10:10:21
root
0755
hdparm
140.336 KB
August 21 2019 2:36:14
root
0755
hwclock
102.352 KB
May 30 2023 5:42:35
root
0755
ifconfig
85.109 KB
February 01 2019 7:07:53
root
0755
init
1.55 MB
November 21 2023 10:10:21
root
0755
insmod
170.336 KB
January 28 2022 3:49:50
root
0755
installkernel
2.576 KB
December 07 2019 3:13:44
root
0755
ip
597.617 KB
February 13 2020 6:21:59
root
0755
ipmaddr
17.992 KB
February 01 2019 7:07:53
root
0755
ipset
14.148 KB
November 25 2021 10:55:19
root
0755
iptunnel
25.992 KB
February 01 2019 7:07:53
root
0755
isosize
30.227 KB
May 30 2023 5:42:35
root
0755
kbdrate
13.992 KB
May 09 2019 5:22:51
root
0755
killall5
26.383 KB
February 13 2020 7:38:21
root
0755
ldconfig
0.378 KB
November 22 2023 2:32:50
root
0755
ldconfig.real
1 MB
November 22 2023 2:32:50
root
0755
logsave
14.156 KB
June 02 2022 2:59:32
root
0755
losetup
110.344 KB
May 30 2023 5:42:35
root
0755
lsmod
170.336 KB
January 28 2022 3:49:50
root
0755
lvchange
2.73 MB
February 13 2020 10:21:51
root
0755
lvconvert
2.73 MB
February 13 2020 10:21:51
root
0755
lvcreate
2.73 MB
February 13 2020 10:21:51
root
0755
lvdisplay
2.73 MB
February 13 2020 10:21:51
root
0755
lvextend
2.73 MB
February 13 2020 10:21:51
root
0755
lvm
2.73 MB
February 13 2020 10:21:51
root
0755
lvmconfig
2.73 MB
February 13 2020 10:21:51
root
0755
lvmdiskscan
2.73 MB
February 13 2020 10:21:51
root
0755
lvmdump
10.07 KB
February 13 2020 10:21:51
root
0755
lvmpolld
232.055 KB
February 13 2020 10:21:51
root
0755
lvmsadc
2.73 MB
February 13 2020 10:21:51
root
0755
lvmsar
2.73 MB
February 13 2020 10:21:51
root
0755
lvreduce
2.73 MB
February 13 2020 10:21:51
root
0755
lvremove
2.73 MB
February 13 2020 10:21:51
root
0755
lvrename
2.73 MB
February 13 2020 10:21:51
root
0755
lvresize
2.73 MB
February 13 2020 10:21:51
root
0755
lvs
2.73 MB
February 13 2020 10:21:51
root
0755
lvscan
2.73 MB
February 13 2020 10:21:51
root
0755
mii-tool
26.461 KB
February 01 2019 7:07:53
root
0755
mkdosfs
34.5 KB
May 13 2018 12:59:39
root
0755
mke2fs
134.617 KB
June 02 2022 2:59:32
root
0755
mkfs
14.227 KB
May 30 2023 5:42:35
root
0755
mkfs.bfs
34.227 KB
May 30 2023 5:42:35
root
0755
mkfs.cramfs
42.156 KB
May 30 2023 5:42:35
root
0755
mkfs.ext2
134.617 KB
June 02 2022 2:59:32
root
0755
mkfs.ext3
134.617 KB
June 02 2022 2:59:32
root
0755
mkfs.ext4
134.617 KB
June 02 2022 2:59:32
root
0755
mkfs.fat
34.5 KB
May 13 2018 12:59:39
root
0755
mkfs.minix
106.234 KB
May 30 2023 5:42:35
root
0755
mkfs.msdos
34.5 KB
May 13 2018 12:59:39
root
0755
mkfs.ntfs
86.266 KB
November 01 2022 12:56:50
root
0755
mkfs.vfat
34.5 KB
May 13 2018 12:59:39
root
0755
mkhomedir_helper
22.172 KB
January 10 2024 2:55:08
root
0755
mkntfs
86.266 KB
November 01 2022 12:56:50
root
0755
mkswap
106.234 KB
May 30 2023 5:42:35
root
0755
modinfo
170.336 KB
January 28 2022 3:49:50
root
0755
modprobe
170.336 KB
January 28 2022 3:49:50
root
0755
mount.fuse
14.148 KB
March 07 2020 12:09:49
root
0755
mount.lowntfs-3g
118.859 KB
November 01 2022 12:56:50
root
0755
mount.ntfs
158.891 KB
November 01 2022 12:56:50
root
0755
mount.ntfs-3g
158.891 KB
November 01 2022 12:56:50
root
0755
nameif
18.141 KB
February 01 2019 7:07:53
root
0755
ntfsclone
58.273 KB
November 01 2022 12:56:50
root
0755
ntfscp
42.258 KB
November 01 2022 12:56:50
root
0755
ntfslabel
34.258 KB
November 01 2022 12:56:50
root
0755
ntfsresize
78.273 KB
November 01 2022 12:56:50
root
0755
ntfsundelete
54.258 KB
November 01 2022 12:56:50
root
0755
on_ac_power
2.176 KB
July 20 2019 5:43:51
root
0755
pam_extrausers_chkpwd
42.156 KB
January 10 2024 2:55:08
root
2755
pam_extrausers_update
42.156 KB
January 10 2024 2:55:08
root
0755
pam_tally
14.164 KB
January 10 2024 2:55:08
root
0755
pam_tally2
18.164 KB
January 10 2024 2:55:08
root
0755
parted
86.25 KB
December 01 2020 4:18:05
root
0755
partprobe
14.227 KB
December 01 2020 4:18:05
root
0755
pivot_root
14.227 KB
May 30 2023 5:42:35
root
0755
plipconfig
14 KB
February 01 2019 7:07:53
root
0755
plymouthd
146.406 KB
November 02 2020 11:02:17
root
0755
poweroff
973.227 KB
November 21 2023 10:10:21
root
0755
pvchange
2.73 MB
February 13 2020 10:21:51
root
0755
pvck
2.73 MB
February 13 2020 10:21:51
root
0755
pvcreate
2.73 MB
February 13 2020 10:21:51
root
0755
pvdisplay
2.73 MB
February 13 2020 10:21:51
root
0755
pvmove
2.73 MB
February 13 2020 10:21:51
root
0755
pvremove
2.73 MB
February 13 2020 10:21:51
root
0755
pvresize
2.73 MB
February 13 2020 10:21:51
root
0755
pvs
2.73 MB
February 13 2020 10:21:51
root
0755
pvscan
2.73 MB
February 13 2020 10:21:51
root
0755
quotacheck
111.375 KB
April 09 2019 10:12:04
root
0755
quotaoff
83.125 KB
April 09 2019 10:12:04
root
0755
quotaon
83.125 KB
April 09 2019 10:12:04
root
0755
rarp
40.453 KB
February 01 2019 7:07:53
root
0755
raw
14.227 KB
May 30 2023 5:42:35
root
0755
reboot
973.227 KB
November 21 2023 10:10:21
root
0755
resize2fs
66.375 KB
June 02 2022 2:59:32
root
0755
rmmod
170.336 KB
January 28 2022 3:49:50
root
0755
route
64.305 KB
February 01 2019 7:07:53
root
0755
rtacct
48.289 KB
February 13 2020 6:21:59
root
0755
rtmon
78.242 KB
February 13 2020 6:21:59
root
0755
runlevel
973.227 KB
November 21 2023 10:10:21
root
0755
runuser
66.227 KB
May 30 2023 5:42:35
root
0755
setcap
14.305 KB
June 07 2023 3:02:37
root
0755
setvtrgb
14.133 KB
May 09 2019 5:22:51
root
0755
sfdisk
138.227 KB
May 30 2023 5:42:35
root
0755
shadowconfig
0.864 KB
July 15 2021 12:08:18
root
0755
shutdown
973.227 KB
November 21 2023 10:10:21
root
0755
slattach
44.453 KB
February 01 2019 7:07:53
root
0755
start-stop-daemon
47.32 KB
May 25 2022 1:14:20
root
0755
sulogin
50.227 KB
May 30 2023 5:42:35
root
0755
swaplabel
18.227 KB
May 30 2023 5:42:35
root
0755
swapoff
22.227 KB
May 30 2023 5:42:35
root
0755
swapon
50.227 KB
May 30 2023 5:42:35
root
0755
switch_root
14.227 KB
May 30 2023 5:42:35
root
0755
sysctl
30.234 KB
October 31 2023 12:35:56
root
0755
tc
529.453 KB
February 13 2020 6:21:59
root
0755
telinit
973.227 KB
November 21 2023 10:10:21
root
0755
tipc
126.234 KB
February 13 2020 6:21:59
root
0755
tune2fs
106.555 KB
June 02 2022 2:59:32
root
0755
unix_chkpwd
42.148 KB
January 10 2024 2:55:08
root
2755
unix_update
42.148 KB
January 10 2024 2:55:08
root
0755
vgcfgbackup
2.73 MB
February 13 2020 10:21:51
root
0755
vgcfgrestore
2.73 MB
February 13 2020 10:21:51
root
0755
vgchange
2.73 MB
February 13 2020 10:21:51
root
0755
vgck
2.73 MB
February 13 2020 10:21:51
root
0755
vgconvert
2.73 MB
February 13 2020 10:21:51
root
0755
vgcreate
2.73 MB
February 13 2020 10:21:51
root
0755
vgdisplay
2.73 MB
February 13 2020 10:21:51
root
0755
vgexport
2.73 MB
February 13 2020 10:21:51
root
0755
vgextend
2.73 MB
February 13 2020 10:21:51
root
0755
vgimport
2.73 MB
February 13 2020 10:21:51
root
0755
vgimportclone
2.73 MB
February 13 2020 10:21:51
root
0755
vgmerge
2.73 MB
February 13 2020 10:21:51
root
0755
vgmknodes
2.73 MB
February 13 2020 10:21:51
root
0755
vgreduce
2.73 MB
February 13 2020 10:21:51
root
0755
vgremove
2.73 MB
February 13 2020 10:21:51
root
0755
vgrename
2.73 MB
February 13 2020 10:21:51
root
0755
vgs
2.73 MB
February 13 2020 10:21:51
root
0755
vgscan
2.73 MB
February 13 2020 10:21:51
root
0755
vgsplit
2.73 MB
February 13 2020 10:21:51
root
0755
wipefs
46.227 KB
May 30 2023 5:42:35
root
0755
zramctl
114.344 KB
May 30 2023 5:42:35
root
0755

NineSec Team - 2022