File Manager

X7ROOT File Manager

Current Path: /usr/sbin

📁 ..
📄 NetworkManager(3.41 MB)
📄 accessdb(12.59 KB)
📄 accton(13.69 KB)
📄 adcli(179.27 KB)
📄 addgnupghome(3 KB)
📄 addpart(24.86 KB)
📄 adduser(148.17 KB)
📄 agetty(62.38 KB)
📄 alternatives(36.66 KB)
📄 anacron(40.99 KB)
📄 apachectl(4.52 KB)
📄 applygnupgdefaults(2.17 KB)
📄 arp(64.71 KB)
📄 arpd(109.52 KB)
📄 arping(28.74 KB)
📄 atd(32.63 KB)
📄 atopacctd(25.29 KB)
📄 atrun(67 B)
📄 auditctl(45.04 KB)
📄 auditd(151.73 KB)
📄 augenrules(4.04 KB)
📄 aureport(122.35 KB)
📄 ausearch(130.36 KB)
📄 authconfig(21.54 KB)
📄 autrace(16.54 KB)
📄 avcstat(16.4 KB)
📄 badblocks(32.59 KB)
📄 biosdecode(21.45 KB)
📄 biosdevname(46.16 KB)
📄 blkdeactivate(15.97 KB)
📄 blkdiscard(29.05 KB)
📄 blkid(98.66 KB)
📄 blkmapd(53.47 KB)
📄 blkzone(49.74 KB)
📄 blockdev(41.3 KB)
📄 bpftool(2.74 MB)
📄 bridge(158.25 KB)
📄 build-locale-archive(841.02 KB)
📄 cache_check(1.43 MB)
📄 cache_dump(1.43 MB)
📄 cache_metadata_size(1.43 MB)
📄 cache_repair(1.43 MB)
📄 cache_restore(1.43 MB)
📄 cache_writeback(1.43 MB)
📄 capsh(32.44 KB)
📄 cfdisk(98.4 KB)
📄 chcpu(28.84 KB)
📄 chgpasswd(69.69 KB)
📄 chkconfig(45.11 KB)
📄 chpasswd(61.42 KB)
📄 chronyd(375.66 KB)
📄 chroot(41.52 KB)
📄 clock(65.22 KB)
📄 clockdiff(20.43 KB)
📄 consoletype(11.85 KB)
📄 convertquota(78.68 KB)
📄 cracklib-check(13.05 KB)
📄 cracklib-format(251 B)
📄 cracklib-packer(13.05 KB)
📄 cracklib-unpacker(9.03 KB)
📄 create-cracklib-dict(990 B)
📄 crond(73.94 KB)
📄 cryptsetup(147.42 KB)
📄 csf(245.1 KB)
📄 ctrlaltdel(24.79 KB)
📄 ctstat(25.33 KB)
📄 dcb(155.04 KB)
📄 ddns-confgen(20.46 KB)
📄 debugfs(231.63 KB)
📄 delpart(24.86 KB)
📄 depmod(159.95 KB)
📄 devlink(215.87 KB)
📄 dhclient(453.68 KB)
📄 dhclient-script(32.86 KB)
📄 dmeventd(45.08 KB)
📄 dmfilemapd(24.55 KB)
📄 dmidecode(141.8 KB)
📄 dmsetup(158.64 KB)
📄 dmstats(158.64 KB)
📄 dnssec-checkds(936 B)
📄 dnssec-coverage(938 B)
📄 dnssec-dsfromkey(60.84 KB)
📄 dnssec-importkey(60.84 KB)
📄 dnssec-keyfromlabel(64.76 KB)
📄 dnssec-keygen(72.84 KB)
📄 dnssec-keymgr(934 B)
📄 dnssec-revoke(56.74 KB)
📄 dnssec-settime(60.84 KB)
📄 dnssec-signzone(117.2 KB)
📄 dnssec-verify(52.84 KB)
📄 dosfsck(65.13 KB)
📄 dosfslabel(61.1 KB)
📄 dovecot(137.48 KB)
📄 dovecot_cpshutdown(3.27 KB)
📄 dpkg-fsys-usrunmess(12.11 KB)
📄 dump-acct(29.15 KB)
📄 dump-utmp(25.02 KB)
📄 dumpe2fs(32.52 KB)
📄 e2freefrag(16.42 KB)
📄 e2fsck(328.52 KB)
📄 e2image(36.61 KB)
📄 e2label(110.63 KB)
📄 e2mmpstatus(32.52 KB)
📄 e2undo(20.38 KB)
📄 e4crypt(24.55 KB)
📄 e4defrag(28.49 KB)
📄 ebtables(220.8 KB)
📄 ebtables-restore(220.8 KB)
📄 ebtables-save(220.8 KB)
📄 edquota(91.24 KB)
📄 era_check(1.43 MB)
📄 era_dump(1.43 MB)
📄 era_invalidate(1.43 MB)
📄 era_restore(1.43 MB)
📄 ether-wake(73.99 KB)
📄 ethtool(557.79 KB)
📄 exicyclog(11.1 KB)
📄 exigrep(10.52 KB)
📄 exim(1.49 MB)
📄 exim_checkaccess(4.83 KB)
📄 exim_dbmbuild(23.23 KB)
📄 exim_dumpdb(38.02 KB)
📄 exim_fixdb(47.56 KB)
📄 exim_lock(26.59 KB)
📄 exim_tidydb(42.35 KB)
📄 eximstats(148.26 KB)
📄 exinext(7.14 KB)
📄 exiqgrep(5.66 KB)
📄 exiqsumm(5.32 KB)
📄 exiwhat(4.42 KB)
📄 exportfs(82.38 KB)
📄 faillock(20.52 KB)
📄 fatlabel(61.1 KB)
📄 fcgistarter(17.11 KB)
📄 fdformat(33.17 KB)
📄 fdisk(130.92 KB)
📄 filefrag(16.47 KB)
📄 findfs(12.37 KB)
📄 firewalld(6.92 KB)
📄 fix-info-dir(7.84 KB)
📄 fixfiles(10.48 KB)
📄 fsadm(24 KB)
📄 fsck(53.47 KB)
📄 fsck.cramfs(41.4 KB)
📄 fsck.ext2(328.52 KB)
📄 fsck.ext3(328.52 KB)
📄 fsck.ext4(328.52 KB)
📄 fsck.fat(65.13 KB)
📄 fsck.minix(98.74 KB)
📄 fsck.msdos(65.13 KB)
📄 fsck.vfat(65.13 KB)
📄 fsck.xfs(1.92 KB)
📄 fsfreeze(16.38 KB)
📄 fstrim(49.6 KB)
📄 fuse2fs(70.39 KB)
📄 fuser(38.14 KB)
📄 g13-syshelp(189.71 KB)
📄 genhomedircon(29.27 KB)
📄 genhostid(11.85 KB)
📄 genl(121.41 KB)
📄 genrandom(12.38 KB)
📄 getcap(12.34 KB)
📄 getenforce(7.84 KB)
📄 getpcaps(12.27 KB)
📄 getsebool(11.88 KB)
📄 groupadd(95.34 KB)
📄 groupdel(91.09 KB)
📄 groupmems(61.48 KB)
📄 groupmod(99.37 KB)
📄 grpck(61.48 KB)
📄 grpconv(57.26 KB)
📄 grpunconv(57.25 KB)
📄 grub2-bios-setup(1.16 MB)
📄 grub2-get-kernel-settings(2.68 KB)
📄 grub2-install(1.44 MB)
📄 grub2-macbless(1.14 MB)
📄 grub2-mkconfig(8.68 KB)
📄 grub2-ofpathname(242.26 KB)
📄 grub2-probe(1.16 MB)
📄 grub2-reboot(3.99 KB)
📄 grub2-rpm-sort(279.16 KB)
📄 grub2-set-bootflag(16.34 KB)
📄 grub2-set-default(3.45 KB)
📄 grub2-set-password(3.05 KB)
📄 grub2-setpassword(3.05 KB)
📄 grub2-sparc64-setup(1.16 MB)
📄 grub2-switch-to-blscfg(8.6 KB)
📄 grubby(260 B)
📄 gss-server(24.62 KB)
📄 gssproxy(132.08 KB)
📄 halt(218.45 KB)
📄 hardlink(17.09 KB)
📄 hdparm(131.91 KB)
📄 htcacheclean(44.36 KB)
📄 httpd(990.57 KB)
📄 hwclock(65.22 KB)
📄 iconvconfig(33.05 KB)
📄 ifconfig(80.86 KB)
📄 ifdown(2.07 KB)
📄 ifenslave(24.95 KB)
📄 ifstat(117.67 KB)
📄 iftop(75.42 KB)
📄 ifup(5.33 KB)
📄 imunify-notifier(9.82 MB)
📄 init(1.53 MB)
📄 insmod(159.95 KB)
📄 install-info(50.23 KB)
📄 installkernel(323 B)
📄 intel_sdsi(15.62 KB)
📄 iotop(511 B)
📄 ip(693.3 KB)
📄 ip6tables(220.8 KB)
📄 ip6tables-apply(6.89 KB)
📄 ip6tables-restore(220.8 KB)
📄 ip6tables-restore-translate(220.8 KB)
📄 ip6tables-save(220.8 KB)
📄 ip6tables-translate(220.8 KB)
📄 ipmaddr(21 KB)
📄 iprconfig(408.03 KB)
📄 iprdbg(137.57 KB)
📄 iprdump(129.3 KB)
📄 iprinit(125.28 KB)
📄 iprsos(2.18 KB)
📄 iprupdate(129.3 KB)
📄 ipset(9.01 KB)
📄 iptables(220.8 KB)
📄 iptables-apply(6.89 KB)
📄 iptables-restore(220.8 KB)
📄 iptables-restore-translate(220.8 KB)
📄 iptables-save(220.8 KB)
📄 iptables-translate(220.8 KB)
📄 iptstate(92.05 KB)
📄 iptunnel(25 KB)
📄 irqbalance(62.28 KB)
📄 irqbalance-ui(41.29 KB)
📄 isc-hmac-fixup(11.85 KB)
📄 iscsi-iname(16.42 KB)
📄 iscsiadm(406.38 KB)
📄 iscsid(419.23 KB)
📄 iscsistart(374.54 KB)
📄 iscsiuio(183.51 KB)
📄 kexec(194.98 KB)
📄 key.dns_resolver(24.52 KB)
📄 kpartx(49.05 KB)
📄 kpatch(16.59 KB)
📄 lchage(16.41 KB)
📄 ldattach(32.99 KB)
📄 ldconfig(986.02 KB)
📄 ledctl(101.16 KB)
📄 ledmon(101.11 KB)
📄 lfd(382.45 KB)
📄 lgroupadd(11.88 KB)
📄 lgroupdel(11.88 KB)
📄 lgroupmod(19.88 KB)
📄 lid(16.27 KB)
📄 lnewusers(19.87 KB)
📄 lnstat(25.33 KB)
📄 load_policy(12.28 KB)
📄 logrotate(93.03 KB)
📄 logsave(16.41 KB)
📄 losetup(90.59 KB)
📄 lpasswd(20.35 KB)
📄 lshw(966.2 KB)
📄 lsmod(159.95 KB)
📄 lspci(94.85 KB)
📄 luseradd(19.88 KB)
📄 luserdel(15.88 KB)
📄 lusermod(19.88 KB)
📄 lvchange(2.61 MB)
📄 lvconvert(2.61 MB)
📄 lvcreate(2.61 MB)
📄 lvdisplay(2.61 MB)
📄 lvextend(2.61 MB)
📄 lvm(2.61 MB)
📄 lvm_import_vdo(23.14 KB)
📄 lvmconfig(2.61 MB)
📄 lvmdevices(2.61 MB)
📄 lvmdiskscan(2.61 MB)
📄 lvmdump(10.12 KB)
📄 lvmpolld(200.69 KB)
📄 lvmsadc(2.61 MB)
📄 lvmsar(2.61 MB)
📄 lvreduce(2.61 MB)
📄 lvremove(2.61 MB)
📄 lvrename(2.61 MB)
📄 lvresize(2.61 MB)
📄 lvs(2.61 MB)
📄 lvscan(2.61 MB)
📄 lwresd(840.86 KB)
📄 makedumpfile(425.19 KB)
📄 mariadbd(24.3 MB)
📄 matchpathcon(12.37 KB)
📄 mcelog(206.3 KB)
📄 mdadm(620.63 KB)
📄 mdmon(375.48 KB)
📄 mii-diag(25.4 KB)
📄 mii-tool(21.03 KB)
📄 mkdict(251 B)
📄 mkdosfs(39.07 KB)
📄 mkdumprd(12.68 KB)
📄 mke2fs(138.45 KB)
📄 mkfadumprd(2.23 KB)
📄 mkfs(16.47 KB)
📄 mkfs.cramfs(41.26 KB)
📄 mkfs.ext2(138.45 KB)
📄 mkfs.ext3(138.45 KB)
📄 mkfs.ext4(138.45 KB)
📄 mkfs.fat(39.07 KB)
📄 mkfs.minix(86.55 KB)
📄 mkfs.msdos(39.07 KB)
📄 mkfs.vfat(39.07 KB)
📄 mkfs.xfs(475.98 KB)
📄 mkhomedir_helper(24.43 KB)
📄 mklost+found(11.86 KB)
📄 mksquashfs(186.83 KB)
📄 mkswap(86.47 KB)
📄 modinfo(159.95 KB)
📄 modprobe(159.95 KB)
📄 modsec-sdbm-util(25.83 KB)
📄 mount.nfs(197.24 KB)
📄 mount.nfs4(197.24 KB)
📄 mountstats(42.22 KB)
📄 mpathconf(16.17 KB)
📄 mpathpersist(29.34 KB)
📄 mtr(110.92 KB)
📄 mtr-packet(58.3 KB)
📄 multipath(32.61 KB)
📄 multipathd(134.76 KB)
📄 mysqld(24.3 MB)
📄 named(840.86 KB)
📄 named-checkconf(36.77 KB)
📄 named-checkzone(36.63 KB)
📄 named-compilezone(36.63 KB)
📄 named-journalprint(11.85 KB)
📄 nameif(16.98 KB)
📄 newusers(107.23 KB)
📄 nfsconf(37.48 KB)
📄 nfsconvert(13.03 KB)
📄 nfsdcld(65.87 KB)
📄 nfsdclddb(10 KB)
📄 nfsdclnts(9.02 KB)
📄 nfsdcltrack(49.78 KB)
📄 nfsidmap(45.36 KB)
📄 nfsiostat(23.36 KB)
📄 nfsref(65.8 KB)
📄 nfsstat(35.52 KB)
📄 nft(24.41 KB)
📄 nginx(1.85 MB)
📄 nginx-debug(1.98 MB)
📄 nologin(11.87 KB)
📄 nrpe(76.13 KB)
📄 nscd(160.68 KB)
📄 nsec3hash(12.29 KB)
📄 nstat(113.57 KB)
📄 nvme(721.45 KB)
📄 oddjobd(77.63 KB)
📄 ownership(12.4 KB)
📄 packer(13.05 KB)
📄 pam_console_apply(45.2 KB)
📄 pam_timestamp_check(11.87 KB)
📄 paperconfig(4.07 KB)
📄 parted(85.6 KB)
📄 partprobe(16.39 KB)
📄 partx(94.5 KB)
📄 pdata_tools(1.43 MB)
📄 pidof(16.7 KB)
📄 ping(66.13 KB)
📄 ping6(66.13 KB)
📄 pivot_root(12.38 KB)
📄 plipconfig(12.71 KB)
📄 plymouth-set-default-theme(6.05 KB)
📄 plymouthd(141.97 KB)
📄 poweroff(218.45 KB)
📄 pure-authd(19.23 KB)
📄 pure-certd(19.13 KB)
📄 pure-config.pl(4.64 KB)
📄 pure-ftpd(182.06 KB)
📄 pure-ftpwho(26.82 KB)
📄 pure-mrtginfo(11.16 KB)
📄 pure-quotacheck(18.81 KB)
📄 pure-uploadscript(19.07 KB)
📄 pvchange(2.61 MB)
📄 pvck(2.61 MB)
📄 pvcreate(2.61 MB)
📄 pvdisplay(2.61 MB)
📄 pvmove(2.61 MB)
📄 pvremove(2.61 MB)
📄 pvresize(2.61 MB)
📄 pvs(2.61 MB)
📄 pvscan(2.61 MB)
📄 pwck(57.27 KB)
📄 pwconv(53.1 KB)
📄 pwhistory_helper(20.43 KB)
📄 pwunconv(53.13 KB)
📄 quot(78.67 KB)
📄 quotacheck(115.75 KB)
📄 quotaoff(83.16 KB)
📄 quotaon(83.16 KB)
📄 quotastats(16.54 KB)
📄 raid-check(3.7 KB)
📄 rcmysql(0 B)
📄 rdisc(24.55 KB)
📄 rdma(187.38 KB)
📄 readprofile(20.55 KB)
📄 realm(144.26 KB)
📄 reboot(218.45 KB)
📄 repquota(83.24 KB)
📄 request-key(24.38 KB)
📄 resize2fs(64.91 KB)
📄 resizepart(41.56 KB)
📄 resolvconf(195.74 KB)
📄 restorecon(20.53 KB)
📄 restorecon_xattr(16.41 KB)
📄 rfkill(53.46 KB)
📄 rmmod(159.95 KB)
📄 rndc(36.53 KB)
📄 rndc-confgen(20.45 KB)
📄 rotatelogs(30.51 KB)
📄 route(67.63 KB)
📄 rpc.gssd(106.55 KB)
📄 rpc.idmapd(61.73 KB)
📄 rpc.mountd(158.92 KB)
📄 rpc.nfsd(49.91 KB)
📄 rpc.statd(103.29 KB)
📄 rpcbind(61.55 KB)
📄 rpcctl(9.41 KB)
📄 rpcdebug(19.38 KB)
📄 rpcinfo(32.64 KB)
📄 rsyslogd(724.73 KB)
📄 rtacct(46.94 KB)
📄 rtcwake(49.31 KB)
📄 rtmon(117.27 KB)
📄 rtstat(25.33 KB)
📄 runlevel(218.45 KB)
📄 runq(1.49 MB)
📄 runuser(48.99 KB)
📄 sa(46.62 KB)
📄 sasldblistusers2(20.77 KB)
📄 saslpasswd2(16.42 KB)
📄 sefcontext_compile(65.35 KB)
📄 selabel_digest(12.28 KB)
📄 selabel_lookup(12.27 KB)
📄 selabel_lookup_best_match(11.89 KB)
📄 selabel_partial_match(11.88 KB)
📄 selinux_check_access(12.36 KB)
📄 selinuxconlist(11.88 KB)
📄 selinuxdefcon(11.88 KB)
📄 selinuxenabled(7.84 KB)
📄 selinuxexeccon(11.86 KB)
📄 semodule(29.27 KB)
📄 sendmail(16.91 KB)
📄 service(3.64 KB)
📄 sestatus(20.41 KB)
📄 setcap(16.27 KB)
📄 setenforce(12.27 KB)
📄 setfiles(20.53 KB)
📄 setpci(28.56 KB)
📄 setquota(91.38 KB)
📄 setsebool(16.38 KB)
📄 sfdisk(118.5 KB)
📄 showmount(21.06 KB)
📄 shutdown(218.45 KB)
📄 sim_server(11.87 KB)
📄 slattach(43.76 KB)
📄 sm-notify(78.14 KB)
📄 smartctl(907.08 KB)
📄 smartd(733.2 KB)
📄 snmpd(32.45 KB)
📄 snmptrapd(32.6 KB)
📄 sos(627 B)
📄 sos-collector(139 B)
📄 sosreport(132 B)
📄 ss(191.3 KB)
📄 sshd(869.77 KB)
📄 sss_cache(61.09 KB)
📄 sssd(73.01 KB)
📄 start-statd(838 B)
📄 start-stop-daemon(45.98 KB)
📄 suexec(25.3 KB)
📄 sulogin(49.24 KB)
📄 suphp(6.56 MB)
📄 swaplabel(16.5 KB)
📄 swapoff(20.74 KB)
📄 swapon(49.4 KB)
📄 switch_root(16.49 KB)
📄 sysctl(28.88 KB)
📄 syspurpose(415 B)
📄 tcpdump(1.01 MB)
📄 tcpslice(32.63 KB)
📄 tcsd(309.72 KB)
📄 telinit(218.45 KB)
📄 thin_check(1.43 MB)
📄 thin_delta(1.43 MB)
📄 thin_dump(1.43 MB)
📄 thin_ls(1.43 MB)
📄 thin_metadata_pack(907.47 KB)
📄 thin_metadata_size(1.43 MB)
📄 thin_metadata_unpack(895.45 KB)
📄 thin_repair(1.43 MB)
📄 thin_restore(1.43 MB)
📄 thin_rmap(1.43 MB)
📄 thin_trim(1.43 MB)
📄 timedatex(33.43 KB)
📄 tipc(163.07 KB)
📄 tmpwatch(35.47 KB)
📄 tracepath(20.44 KB)
📄 tracepath6(20.44 KB)
📄 tsig-keygen(20.46 KB)
📄 tune2fs(110.63 KB)
📄 tuned(3.88 KB)
📄 tuned-adm(6.5 KB)
📄 udevadm(424.59 KB)
📄 umount.nfs(197.24 KB)
📄 umount.nfs4(197.24 KB)
📄 unbound-anchor(57.34 KB)
📄 unix_chkpwd(36.86 KB)
📄 unix_update(36.87 KB)
📄 unsquashfs(99.57 KB)
📄 update-alternatives(36.66 KB)
📄 update-pciids(1.71 KB)
📄 update-smart-drivedb(14.44 KB)
📄 useradd(148.17 KB)
📄 userdel(107.29 KB)
📄 usermod(144.07 KB)
📄 usernetctl(12.4 KB)
📄 uuserver(15.88 KB)
📄 vdpa(118.04 KB)
📄 vgcfgbackup(2.61 MB)
📄 vgcfgrestore(2.61 MB)
📄 vgchange(2.61 MB)
📄 vgck(2.61 MB)
📄 vgconvert(2.61 MB)
📄 vgcreate(2.61 MB)
📄 vgdisplay(2.61 MB)
📄 vgexport(2.61 MB)
📄 vgextend(2.61 MB)
📄 vgimport(2.61 MB)
📄 vgimportclone(2.61 MB)
📄 vgimportdevices(2.61 MB)
📄 vgmerge(2.61 MB)
📄 vgmknodes(2.61 MB)
📄 vgreduce(2.61 MB)
📄 vgremove(2.61 MB)
📄 vgrename(2.61 MB)
📄 vgs(2.61 MB)
📄 vgscan(2.61 MB)
📄 vgsplit(2.61 MB)
📄 vigr(68.05 KB)
📄 vipw(68.05 KB)
📄 virt-what(14.22 KB)
📄 visudo(239.22 KB)
📄 vmcore-dmesg(28.58 KB)
📄 vpddecode(16.47 KB)
📄 weak-modules(33.6 KB)
📄 whmapi0(3.18 MB)
📄 whmapi1(3.18 MB)
📄 whmlogin(2.33 KB)
📄 wipefs(41.11 KB)
📄 xfs_admin(1.38 KB)
📄 xfs_bmap(695 B)
📄 xfs_copy(434.59 KB)
📄 xfs_db(760.47 KB)
📄 xfs_estimate(12.39 KB)
📄 xfs_freeze(800 B)
📄 xfs_fsr(53.41 KB)
📄 xfs_growfs(422.48 KB)
📄 xfs_info(1.26 KB)
📄 xfs_io(188.28 KB)
📄 xfs_logprint(454.7 KB)
📄 xfs_mdrestore(410.09 KB)
📄 xfs_metadump(782 B)
📄 xfs_mkfile(1.02 KB)
📄 xfs_ncheck(685 B)
📄 xfs_quota(93.98 KB)
📄 xfs_repair(715.24 KB)
📄 xfs_rtcp(16.38 KB)
📄 xfs_spaceman(45.42 KB)
📄 xfsdump(308.02 KB)
📄 xfsinvutil(66.91 KB)
📄 xfsrestore(369.39 KB)
📄 xqmstats(16.45 KB)
📄 xtables-monitor(220.8 KB)
📄 xtables-nft-multi(220.8 KB)
📄 zdump(20.57 KB)
📄 zic(52.83 KB)
📄 zramctl(99.09 KB)

Editing: 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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