shell bypass 403
UnknownSec Shell
:
/
proc
/
self
/
root
/
lib
/
dracut
/
modules.d
/
99fs-lib
/ [
drwxr-xr-x
]
upload
mass deface
mass delete
console
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name :
fs-lib.sh
#!/bin/sh type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh fsck_ask_reboot() { info "note - fsck suggests reboot, if you" info "leave shell, booting will continue normally" emergency_shell -n "(reboot ?)" } fsck_ask_err() { warn "*** An error occurred during the file system check." warn "*** Dropping you to a shell; the system will try" warn "*** to mount the filesystem(s), when you leave the shell." emergency_shell -n "(Repair filesystem)" } # inherits: _ret _drv _out fsck_tail() { [ $_ret -gt 0 ] && warn "$_drv returned with $_ret" if [ $_ret -ge 4 ]; then [ -n "$_out" ] && echo "$_out"|vwarn fsck_ask_err else [ -n "$_out" ] && echo "$_out"|vinfo [ $_ret -ge 2 ] && fsck_ask_reboot fi } # note: this function sets _drv of the caller fsck_able() { case "$1" in xfs) # { # type xfs_db && # type xfs_repair && # type xfs_check && # type mount && # type umount # } >/dev/null 2>&1 && # _drv="_drv=none fsck_drv_xfs" && # return 0 return 1 ;; ext?) type e2fsck >/dev/null 2>&1 && _drv="fsck_drv_com e2fsck" && return 0 ;; f2fs) type fsck.f2fs >/dev/null 2>&1 && _drv="fsck_drv_com fsck.f2fs" && return 0 ;; jfs) type jfs_fsck >/dev/null 2>&1 && _drv="fsck_drv_com jfs_fsck" && return 0 ;; reiserfs) type reiserfsck >/dev/null 2>&1 && _drv="fsck_drv_com reiserfsck" && return 0 ;; btrfs) # type btrfsck >/dev/null 2>&1 && # _drv="_drv=none fsck_drv_btrfs" && # return 0 return 1 ;; nfs*) # nfs can be a nop, returning success _drv=":" && return 0 ;; *) type fsck >/dev/null 2>&1 && _drv="fsck_drv_std fsck" && return 0 ;; esac return 1 } # note: all drivers inherit: _drv _fop _dev fsck_drv_xfs() { # xfs fsck is not necessary... Either it mounts or not return 0 } fsck_drv_btrfs() { # btrfs fsck is not necessary... Either it mounts or not return 0 } # common code for checkers that follow usual subset of options and return codes fsck_drv_com() { local _drv="$1" local _ret local _out if ! strglobin "$_fop" "-[ynap]"; then _fop="-a ${_fop}" fi info "issuing $_drv $_fop $_dev" # we enforce non-interactive run, so $() is fine _out=$($_drv $_fop "$_dev") _ret=$? fsck_tail return $_ret } # code for generic fsck, if the filesystem checked is "unknown" to us fsck_drv_std() { local _ret local _out unset _out info "issuing fsck $_fop $_dev" # note, we don't enforce -a here, thus fsck is being run (in theory) # interactively; otherwise some tool might complain about lack of terminal # (and using -a might not be safe) fsck $_fop "$_dev" >/dev/console 2>&1 _ret=$? fsck_tail return $_ret } # checks single filesystem, relying on specific "driver"; we don't rely on # automatic checking based on fstab, so empty one is passed; # takes 4 arguments - device, filesystem, filesystem options, additional fsck options; # first 2 arguments are mandatory (fs may be auto or "") # returns 255 if filesystem wasn't checked at all (e.g. due to lack of # necessary tools or insufficient options) fsck_single() { local FSTAB_FILE=/etc/fstab.empty local _dev="$1" local _fs="${2:-auto}" local _fsopts="$3" local _fop="$4" local _drv [ $# -lt 2 ] && return 255 # if UUID= marks more than one device, take only the first one [ -e "$_dev" ] || _dev=$(devnames "$_dev"| while read line || [ -n "$line" ]; do if [ -n "$line" ]; then echo $line; break;fi;done) [ -e "$_dev" ] || return 255 _fs=$(det_fs "$_dev" "$_fs") fsck_able "$_fs" || return 255 info "Checking $_fs: $_dev" export FSTAB_FILE eval "$_drv" return $? } # takes list of filesystems to check in parallel; we don't rely on automatic # checking based on fstab, so empty one is passed fsck_batch() { local FSTAB_FILE=/etc/fstab.empty local _drv=fsck local _dev local _ret local _out [ $# -eq 0 ] || ! type fsck >/dev/null 2>&1 && return 255 info "Checking filesystems (fsck -M -T -a):" for _dev in "$@"; do info " $_dev" done export FSTAB_FILE _out="$(fsck -M -T "$@" -- -a)" _ret=$? fsck_tail return $_ret } # verify supplied filesystem type: # if user provided the fs and we couldn't find it, assume user is right # if we found the fs, assume we're right det_fs() { local _dev="$1" local _orig="${2:-auto}" local _fs _fs=$(udevadm info --query=env --name="$_dev" | \ while read line || [ -n "$line" ]; do if str_starts $line "ID_FS_TYPE="; then echo ${line#ID_FS_TYPE=} break fi done) _fs=${_fs:-auto} if [ "$_fs" = "auto" ]; then _fs="$_orig" fi echo "$_fs" } write_fs_tab() { local _o local _rw local _root local _rootfstype local _rootflags local _fspassno _fspassno="0" _root="$1" _rootfstype="$2" _rootflags="$3" [ -z "$_rootfstype" ] && _rootfstype=$(getarg rootfstype=) [ -z "$_rootflags" ] && _rootflags=$(getarg rootflags=) [ -z "$_rootfstype" ] && _rootfstype="auto" if [ -z "$_rootflags" ]; then _rootflags="ro,x-initrd.mount" else _rootflags="ro,$_rootflags,x-initrd.mount" fi _rw=0 CMDLINE=$(getcmdline) for _o in $CMDLINE; do case $_o in rw) _rw=1;; ro) _rw=0;; esac done if [ "$_rw" = "1" ]; then _rootflags="$_rootflags,rw" if ! getargbool 0 rd.skipfsck; then _fspassno="1" fi fi echo "$_root /sysroot $_rootfstype $_rootflags $_fspassno 0" >> /etc/fstab if type systemctl >/dev/null 2>/dev/null; then systemctl daemon-reload systemctl --no-block start initrd-root-fs.target fi }
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