diff options
Diffstat (limited to 'straper/db/public/zfs/etc-zfs/zfs-functions')
| -rw-r--r-- | straper/db/public/zfs/etc-zfs/zfs-functions | 434 |
1 files changed, 0 insertions, 434 deletions
diff --git a/straper/db/public/zfs/etc-zfs/zfs-functions b/straper/db/public/zfs/etc-zfs/zfs-functions deleted file mode 100644 index 8c30894..0000000 --- a/straper/db/public/zfs/etc-zfs/zfs-functions +++ /dev/null @@ -1,434 +0,0 @@ -# SPDX-License-Identifier: BSD-2-Clause -# This is a script with common functions etc used by zfs-import, zfs-load-key, -# zfs-mount, zfs-share and zfs-zed. -# -# It is _NOT_ to be called independently -# -# Released under the 2-clause BSD license. -# -# This script is based on debian/zfsutils.zfs.init from the -# Debian GNU/kFreeBSD zfsutils 8.1-3 package, written by Aurelien Jarno. - -PATH=/sbin:/bin:/usr/bin:/usr/sbin - -# Source function library -if [ -f /etc/rc.d/init.d/functions ]; then - # RedHat and derivatives - . /etc/rc.d/init.d/functions -elif [ -L /etc/init.d/functions.sh ]; then - # Gentoo - . /etc/init.d/functions.sh -elif [ -f /lib/lsb/init-functions ]; then - # LSB, Debian, and derivatives - . /lib/lsb/init-functions -fi - -# Of course the functions we need are called differently -# on different distributions - it would be way too easy -# otherwise!! -if type log_failure_msg > /dev/null 2>&1 ; then - # LSB functions - fall through - zfs_log_begin_msg() { log_begin_msg "$1"; } - zfs_log_end_msg() { log_end_msg "$1"; } - zfs_log_failure_msg() { log_failure_msg "$1"; } - zfs_log_progress_msg() { log_progress_msg "$1"; } -elif type success > /dev/null 2>&1 ; then - # Fedora/RedHat functions - zfs_set_ifs() { - # For some reason, the init function library have a problem - # with a changed IFS, so this function goes around that. - local tIFS="$1" - if [ -n "$tIFS" ] - then - TMP_IFS="$IFS" - IFS="$tIFS" - fi - } - - zfs_log_begin_msg() { printf "%s" "$1 "; } - zfs_log_end_msg() { - # shellcheck disable=SC2154 - zfs_set_ifs "$OLD_IFS" - if [ "$1" -eq 0 ]; then - success - else - failure - fi - echo - zfs_set_ifs "$TMP_IFS" - } - zfs_log_failure_msg() { - zfs_set_ifs "$OLD_IFS" - failure - echo - zfs_set_ifs "$TMP_IFS" - } - zfs_log_progress_msg() { printf "%s" "$""$1"; } -elif type einfo > /dev/null 2>&1 ; then - # Gentoo functions - zfs_log_begin_msg() { ebegin "$1"; } - zfs_log_end_msg() { eend "$1"; } - zfs_log_failure_msg() { eend "$1"; } -# zfs_log_progress_msg() { printf "%s" "$1"; } - zfs_log_progress_msg() { :; } -else - # Unknown - simple substitutes. - zfs_log_begin_msg() { printf "%s" "$1"; } - zfs_log_end_msg() { - ret=$1 - if [ "$ret" -ge 1 ]; then - echo " failed!" - else - echo " success" - fi - return "$ret" - } - zfs_log_failure_msg() { echo "$1"; } - zfs_log_progress_msg() { printf "%s" "$1"; } -fi - -# Paths to what we need -ZFS="/usr/sbin/zfs" -ZED="/usr/sbin/zed" -ZPOOL="/usr/sbin/zpool" -ZPOOL_CACHE="/etc/zfs/zpool.cache" - -# Sensible defaults -ZFS_LOAD_KEY='yes' -ZFS_UNLOAD_KEY='no' -ZFS_MOUNT='yes' -ZFS_UNMOUNT='yes' -ZFS_SHARE='yes' -ZFS_UNSHARE='yes' - -# Source zfs configuration, overriding the defaults -if [ -f /etc/default/zfs ]; then - . /etc/default/zfs -fi - -# ---------------------------------------------------- - -export ZFS ZED ZPOOL ZPOOL_CACHE ZFS_LOAD_KEY ZFS_UNLOAD_KEY ZFS_MOUNT ZFS_UNMOUNT \ - ZFS_SHARE ZFS_UNSHARE - -zfs_action() -{ - local MSG="$1"; shift - local CMD="$*" - local ret - - zfs_log_begin_msg "$MSG " - $CMD - ret=$? - if [ "$ret" -eq 0 ]; then - zfs_log_end_msg "$ret" - else - zfs_log_failure_msg "$ret" - fi - - return "$ret" -} - -# Returns -# 0 if daemon has been started -# 1 if daemon was already running -# 2 if daemon could not be started -# 3 if unsupported -# -zfs_daemon_start() -{ - local PIDFILE="$1"; shift - local DAEMON_BIN="$1"; shift - - if type start-stop-daemon > /dev/null 2>&1 ; then - # LSB functions - start-stop-daemon --start --quiet --pidfile "$PIDFILE" \ - --exec "$DAEMON_BIN" --test > /dev/null || return 1 - - # shellcheck disable=SC2086 - start-stop-daemon --start --quiet --exec "$DAEMON_BIN" -- \ - "$@" || return 2 - - # On Debian, there's a 'sendsigs' script that will - # kill basically everything quite early and zed is stopped - # much later than that. We don't want zed to be among them, - # so add the zed pid to list of pids to ignore. - if [ -f "$PIDFILE" ] && [ -d /run/sendsigs.omit.d ] - then - ln -sf "$PIDFILE" /run/sendsigs.omit.d/zed - fi - elif type daemon > /dev/null 2>&1 ; then - # Fedora/RedHat functions - # shellcheck disable=SC2086 - daemon --pidfile "$PIDFILE" "$DAEMON_BIN" "$@" - return $? - else - # Unsupported - return 3 - fi - - return 0 -} - -# Returns -# 0 if daemon has been stopped -# 1 if daemon was already stopped -# 2 if daemon could not be stopped -# 3 if unsupported -# -zfs_daemon_stop() -{ - local PIDFILE="$1" - local DAEMON_BIN="$2" - local DAEMON_NAME="$3" - - if type start-stop-daemon > /dev/null 2>&1 ; then - # LSB functions - start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 \ - --pidfile "$PIDFILE" --name "$DAEMON_NAME" - ret="$?" - [ "$ret" = 0 ] && rm -f "$PIDFILE" - - return "$ret" - elif type killproc > /dev/null 2>&1 ; then - # Fedora/RedHat functions - killproc -p "$PIDFILE" "$DAEMON_NAME" - ret="$?" - [ "$ret" = 0 ] && rm -f "$PIDFILE" - - return "$ret" - else - # Unsupported - return 3 - fi - - return 0 -} - -# Returns status -zfs_daemon_status() -{ - local PIDFILE="$1" - local DAEMON_BIN="$2" - local DAEMON_NAME="$3" - - if type status_of_proc > /dev/null 2>&1 ; then - # LSB functions - status_of_proc "$DAEMON_NAME" "$DAEMON_BIN" - return $? - elif type status > /dev/null 2>&1 ; then - # Fedora/RedHat functions - status -p "$PIDFILE" "$DAEMON_NAME" - return $? - else - # Unsupported - return 3 - fi - - return 0 -} - -zfs_daemon_reload() -{ - local PIDFILE="$1" - local DAEMON_NAME="$2" - - if type start-stop-daemon > /dev/null 2>&1 ; then - # LSB functions - start-stop-daemon --stop --signal 1 --quiet \ - --pidfile "$PIDFILE" --name "$DAEMON_NAME" - return $? - elif type killproc > /dev/null 2>&1 ; then - # Fedora/RedHat functions - killproc -p "$PIDFILE" "$DAEMON_NAME" -HUP - return $? - else - # Unsupported - return 3 - fi - - return 0 -} - -zfs_installed() -{ - if [ ! -x "$ZPOOL" ]; then - return 1 - else - # Test if it works (will catch missing/broken libs etc) - "$ZPOOL" -? > /dev/null 2>&1 - return $? - fi - - if [ ! -x "$ZFS" ]; then - return 2 - else - # Test if it works (will catch missing/broken libs etc) - "$ZFS" -? > /dev/null 2>&1 - return $? - fi - - return 0 -} - -# Trigger udev and wait for it to settle. -udev_trigger() -{ - if [ -x /sbin/udevadm ]; then - /sbin/udevadm trigger --action=change --subsystem-match=block - /sbin/udevadm settle - elif [ -x /sbin/udevsettle ]; then - /sbin/udevtrigger - /sbin/udevsettle - fi -} - -# Do a lot of checks to make sure it's 'safe' to continue with the import. -checksystem() -{ - if grep -qiE '(^|[^\\](\\\\)* )zfs=(off|no|0)( |$)' /proc/cmdline; - then - # Called with zfs=(off|no|0) - bail because we don't - # want anything import, mounted or shared. - # HOWEVER, only do this if we're called at the boot up - # (from init), not if we're running interactively (as in - # from the shell - we know what we're doing). - # shellcheck disable=SC2154 - [ -n "$init" ] && exit 3 - fi - - # Check if ZFS is installed. - zfs_installed || return 5 - - # Just make sure that /dev/zfs is created. - udev_trigger - - return 0 -} - -get_root_pool() -{ - # shellcheck disable=SC2046 - set -- $(mount | grep ' on / ') - [ "$5" = "zfs" ] && echo "${1%%/*}" -} - -# Check if a variable is 'yes' (any case) or '1' -# Returns TRUE if set. -check_boolean() -{ - local var="$1" - - echo "$var" | grep -Eiq "^yes$|^on$|^true$|^1$" && return 0 || return 1 -} - -check_module_loaded() -{ - module="$1" - - [ -r "/sys/module/${module}/version" ] && return 0 || return 1 -} - -load_module() -{ - module="$1" - - # Load the zfs module stack - if ! check_module_loaded "$module"; then - if ! /sbin/modprobe "$module"; then - return 5 - fi - fi - return 0 -} - -# first parameter is a regular expression that filters mtab -read_mtab() -{ - local match="$1" - local fs mntpnt fstype opts rest - - # Unset all MTAB_* variables - # shellcheck disable=SC2046 - unset $(env | sed -e '/^MTAB_/!d' -e 's,=.*,,') - - while read -r fs mntpnt fstype opts rest; do - if echo "$fs $mntpnt $fstype $opts" | grep -qE "$match"; then - # * Fix problems (!?) in the mounts file. It will record - # 'rpool 1' as 'rpool\0401' instead of 'rpool\00401' - # which seems to be the correct (at least as far as - # 'printf' is concerned). - # * We need to use the external echo, because the - # internal one would interpret the backslash code - # (incorrectly), giving us a instead. - mntpnt=$(/bin/echo "$mntpnt" | sed 's,\\0,\\00,g') - fs=$(/bin/echo "$fs" | sed 's,\\0,\\00,') - - # Remove 'unwanted' characters. - mntpnt=$(printf '%b' "$mntpnt" | tr -d '/. -') - fs=$(printf '%b' "$fs") - - # Set the variable. - eval export "MTAB_$mntpnt=\"$fs\"" - fi - done < /proc/self/mounts -} - -in_mtab() -{ - local mntpnt="$1" - # Remove 'unwanted' characters. - mntpnt=$(printf '%b' "$mntpnt" | tr -d '/. -') - local var - - var="$(eval echo "MTAB_$mntpnt")" - [ "$(eval echo "$""$var")" != "" ] - return "$?" -} - -# first parameter is a regular expression that filters fstab -read_fstab() -{ - local match="$1" - local i var - - # Unset all FSTAB_* variables - # shellcheck disable=SC2046 - unset $(env | sed -e '/^FSTAB_/!d' -e 's,=.*,,') - - i=0 - while read -r fs mntpnt fstype opts; do - echo "$fs" | grep -qE '^#|^$' && continue - echo "$mntpnt" | grep -qE '^none|^swap' && continue - echo "$fstype" | grep -qE '^swap' && continue - - if echo "$fs $mntpnt $fstype $opts" | grep -qE "$match"; then - eval export "FSTAB_dev_$i=$fs" - fs=$(printf '%b' "$fs" | tr '/' '_') - eval export "FSTAB_$i=$mntpnt" - - i=$((i + 1)) - fi - done < /etc/fstab -} - -in_fstab() -{ - local var - - var="$(eval echo "FSTAB_$1")" - [ "${var}" != "" ] - return $? -} - -is_mounted() -{ - local mntpt="$1" - local mp - - while read -r _ mp _; do - [ "$mp" = "$mntpt" ] && return 0 - done < /proc/self/mounts - - return 1 -} |