shell bypass 403
UnknownSec Shell
:
/
usr
/
sbin
/ [
drwxr-xr-x
]
upload
mass deface
mass delete
console
info server
name :
fsadm
#!/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 "$VOLUME" || true) test -n "$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 DEVSIZE=$("$BLOCKDEV" --getsize64 "$VOLUME" 2>"$NULL" || true) if test -z "$DEVSIZE" ; then DEVSIZE=$("$BLOCKDEV" --getsize "$VOLUME" || true) test -n "$DEVSIZE" || error "Cannot read size of device \"$VOLUME\"." SSSIZE=$("$BLOCKDEV" --getss "$VOLUME" || true) test -n "$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 [ "$#" -eq 0 ] ; then tool_usage fi CHECK="" RESIZE="" NEWSIZE="" while [ "$#" -ne 0 ] do case "$1" in "") ;; "-h"|"--help") tool_usage ;; "-v"|"--verbose") VERB="-v" ;; "-n"|"--dry-run") DRY=1 ;; "-f"|"--force") FORCE="-f" ;; "-e"|"--ext-offline") EXTOFF=1 ;; "-y"|"--yes") YES="-y" ;; "-l"|"--lvresize") DO_LVRESIZE=1 ;; "-c"|"--cryptresize") DO_CRYPTRESIZE=1 ;; "check") test -z "${2-}" && error "Missing <device>. (see: $TOOL --help)" CHECK=$2 ; shift ;; "resize") test -z "${2-}" && error "Missing <device>. (see: $TOOL --help)" RESIZE=$2 ; shift if test -n "${2-}" ; then NEWSIZE="${2-}" ; shift ; fi ;; *) 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
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