diff --git a/Vagrantfile b/Vagrantfile
index 9fa28e9..66e0cd7 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -16,6 +16,7 @@ Vagrant.configure('2') do |config|
 
   $install = <<SCRIPT
 ln -fs /vagrant/bkctld /usr/sbin/bkctld
+ln -fs /vagrant/lib /usr/lib/bkctld
 ln -fs /vagrant/tpl /usr/share/bkctld
 ln -fs /vagrant/bash_completion /usr/share/bash-completion/completions/bkctld
 ln -fs /vagrant/bkctld.conf /etc/default/bkctld
diff --git a/bkctld b/bkctld
index 03a7a32..d1c01a7 100755
--- a/bkctld
+++ b/bkctld
@@ -10,652 +10,57 @@
 
 set -u
 
-usage(){
-    cat <<EOF
-Usage: $0 <subcommand> [options]
-Subcommands:
-    init        <jailname>                      Init jail <jailname>
-    update      <jailname>|all                  Update jail <jailname> or all
-    remove      <jailname>|all                  Remove jail <jailname> or all
-    start       <jailname>|all                  Start jail <jailname> or all
-    stop        <jailname>|all                  Stop jail <jailname> or all
-    reload      <jailname>|all                  Reload jail <jailname> or all
-    restart     <jailname>|all                  Restart jail <jailname> or all
-    sync        <jailname>|all                  Sync jail <jailname> or all to another node
-    status      [<jailname>]                    Print status of <jailname> (default all jail)
-    key         <jailname>      [<keyfile>]     Set or get ssh pubic key of <jailname>
-    port        <jailname>      [<port>|auto]   Set or get ssh port of <jailname>
-    ip          <jailname>      [<ip>|all]      Set or get allowed(s) ip(s) of <jailname>
-    inc                                         Make incremental inc of all jails
-    rm                                          Remove old incremtal inc of all jails
-    check                                       Run check on jails (NRPE output)
-    stats                                       Make and display stats on jails (size, lastconn)
+[ "$(id -u)" -ne 0 ] && error "You need to be root to run ${0} !"
 
-EOF
-}
+[ -d './lib' ] && LIBDIR='lib'
+[ -d '/usr/lib/bkctld' ] && LIBDIR='/usr/lib/bkctld'
+. "${LIBDIR}/config"
 
-## logging functions
+mkdir -p "${CONFDIR}" "${JAILDIR}" "${INCDIR}" "${INDEX_DIR}"
+subcommand="${1:-}"
+jail="${2:-}"
+option="${3:-}"
 
-debug() {
-    msg="${1:-$(cat /dev/stdin)}"
-    if [ "${LOGLEVEL}" -ge 7 ]; then
-        echo "${msg}"
-        logger -t bkctld -p daemon.debug "${msg}"
-    fi
-}
+[ -x "${LIBDIR}/bkctld-${subcommand}" ] || usage
 
-info() {
-    msg="${1:-$(cat /dev/stdin)}"
-    if [ "${LOGLEVEL}" -ge 6 ]; then
-        tty -s && echo "${msg}"
-        logger -t bkctld -p daemon.info "${msg}"
-    fi
-}
-
-notice() {
-    msg="${1:-$(cat /dev/stdin)}"
-    tty -s && echo "${msg}"
-    [ "${LOGLEVEL}" -ge 5 ] && logger -t bkctld -p daemon.notice "${msg}"
-}
-
-warning() {
-    msg="${1:-$(cat /dev/stdin)}"
-    tty -s && echo "WARNING : ${msg}" >&2
-    if [ "${LOGLEVEL}" -ge 4 ]; then
-        tty -s || echo "WARNING : ${msg}" >&2
-        logger -t bkctld -p daemon.warning "${msg}"
-    fi
-}
-
-error() {
-    msg="${1:-$(cat /dev/stdin)}"
-    tty -s && echo "ERROR : ${msg}" >&2
-    if [ "${LOGLEVEL}" -ge 5 ]; then
-        tty -s || echo "ERROR : ${msg}" >&2
-        logger -t bkctld -p daemon.error "${msg}"
-    fi
-    exit 1
-}
-
-## check functions
-
-check_jail() {
-    jail="${1}"
-    [ -d "${JAILDIR}/${jail}" ] && return 0
-    return 1
-}
-
-check_jail_on() {
-    jail="${1}"
-    return=1
-    if [ -f "${JAILDIR}/${jail}/${SSHD_PID}" ]; then
-        pid=$(cat "${JAILDIR}/${jail}/${SSHD_PID}")
-        ps -p "${pid}" > /dev/null && return=0
-    fi
-    if [ "${return}" -eq 1 ]; then
-        rm -f "${JAILDIR}/${jail}/${SSHD_PID}"
-        grep -q "${JAILDIR}/${jail}/proc" /proc/mounts && umount --lazy "${JAILDIR}/${jail}/proc/"
-        grep -q "${JAILDIR}/${jail}/dev" /proc/mounts && umount --lazy --recursive "${JAILDIR}/${jail}/dev"
-    fi
-    return "${return}"
-}
-
-## get functions : get info on jail
-
-get_port() {
-    jail="${1}"
-    port=$(grep -E "Port [0-9]+" "${JAILDIR}/${jail}/${SSHD_CONFIG}"|grep -oE "[0-9]+")
-    echo "${port}"
-}
-
-get_key() {
-    jail="${1}"
-    if [ -f "${JAILDIR}/${jail}/${AUTHORIZED_KEYS}" ]; then
-        cat "${JAILDIR}/${jail}/${AUTHORIZED_KEYS}"
-    fi
-}
-
-get_ip() {
-    jail="${1}"
-    grep -E "^AllowUsers" "${JAILDIR}/$jail/${SSHD_CONFIG}"|grep -Eo "root@[^ ]+"| while read allow; do
-        echo "${allow}"|cut -d'@' -f2
-    done
-}
-
-get_inc() {
-    jail="${1}"
-    inc="0"
-        if [ -f "${CONFDIR}/${jail}" ]; then
-            day=$(grep -c "day" "${CONFDIR}/${jail}")
-            month=$(grep -c "month" "${CONFDIR}/${jail}")
-            inc="${day}/${month}"
-        fi
-    echo "${inc}"
-}
-
-## set functions : set info on jail
-
-set_port() {
-    jail="${1}"
-    port="${2}"
-    if [ "${port}" = "auto" ]; then
-        port=$(grep -h Port "${JAILDIR}"/*/"${SSHD_CONFIG}" 2>/dev/null | grep -Eo "[0-9]+" | sort -n | tail -1)
-        port=$((port+1))
-        [ "${port}" -le 1 ] && port=2222
-    fi
-    sed -i "s/^Port .*/Port ${port}/" "${JAILDIR}/$jail/${SSHD_CONFIG}"
-    set_firewall "${jail}"
-}
-
-set_key() {
-    jail="${1}"
-    keyfile="${2}"
-    [ -e "${keyfile}" ] || error "Keyfile ${keyfile} dosen't exist !"
-    cat "${keyfile}" > "${JAILDIR}/${jail}/${AUTHORIZED_KEYS}"
-    chmod 600 "${JAILDIR}/${jail}/${AUTHORIZED_KEYS}"
-}
-
-set_ip() {
-    jail="${1}"
-    ip="${2}"
-    if [ "${ip}" = "all" ] || [ "${ip}" = "0.0.0.0/0" ]; then
-        ips="0.0.0.0/0"
+case "${subcommand}" in
+    "inc" | "rm" | "check" | "stats")
+        "${LIBDIR}/bkctld-${subcommand}"
+    ;;
+        "init")
+        "${LIBDIR}/bkctld-${subcommand}" "${jail}"
+    ;;
+    "key" | "port" | "ip")
+        "${LIBDIR}/bkctld-params" "${jail}" "${subcommand}" "${option}"
+    ;;
+    "start" | "stop" | "reload" | "restart" | "sync" | "update" | "remove")
+    if [ "${jail}" = "all" ]; then
+        jails=$(ls "${JAILDIR}")
+        for jail in ${jails}; do
+            case "${subcommand}" in
+                "start")
+                    check_jail_on "${jail}" || "${LIBDIR}/bkctld-${subcommand}" "${jail}"
+                ;;
+                "stop" | "reload" | "restart")
+                    check_jail_on "${jail}" && "${LIBDIR}/bkctld-${subcommand}" "${jail}"
+                ;;
+                *)
+                    "${LIBDIR}/bkctld-${subcommand}" "${jail}"
+                ;;
+            esac
+                done
     else
-        ips=$(get_ip "${jail}")
-        ips=$(echo "${ips}" "${ip}"|xargs -n1|grep -v "0.0.0.0/0"|sort|uniq)
+        "${LIBDIR}/bkctld-${subcommand}" "${jail}"
     fi
-    allow="AllowUsers"
-    for ip in $ips; do
-        allow="${allow} root@${ip}"
-    done
-    sed -i "s~^AllowUsers .*~${allow}~" "${JAILDIR}/$jail/${SSHD_CONFIG}"
-    set_firewall "${jail}"
-}
-
-set_firewall() {
-    jail="${1}"
-    if [ -n "${FIREWALL_RULES}" ]; then
-        if [ -f "${FIREWALL_RULES}" ]; then
-            sed -i "/#${jail}$/d" "${FIREWALL_RULES}"
-        fi
-        if ( check_jail "${jail}" ); then
-            port=$(get_port "${jail}")
-            for ip in $(get_ip "${jail}"); do
-                echo "/sbin/iptables -A INPUT -p tcp --sport 1024: --dport ${port} -s ${ip} -j ACCEPT #${jail}" >> "${FIREWALL_RULES}"
-            done
-            if [ -f /etc/init.d/minifirewall ]; then
-                /etc/init.d/minifirewall restart >/dev/null
-            fi
-        fi
-    fi
-}
-
-## mk_jail function : create or update a jail
-
-mk_jail() {
-    jail="${1}"
-    passwd="${TPLDIR}/passwd"
-    shadow="${TPLDIR}/shadow"
-    group="${TPLDIR}/group"
-    sshrc="${TPLDIR}/sshrc"
-    [ -f "${LOCALTPLDIR}/passwd" ] && passwd="${LOCALTPLDIR}/passwd"
-    [ -f "${LOCALTPLDIR}/shadow" ] && shadow="${LOCALTPLDIR}/shadow"
-    [ -f "${LOCALTPLDIR}/group" ] && group="${LOCALTPLDIR}/group"
-    [ -f "${LOCALTPLDIR}/sshrc" ] && group="${LOCALTPLDIR}/sshrc"
-    umask 077
-
-    info "1 - Creating the chroot"
-    cd "${JAILDIR}/${jail}"
-    rm -rf bin lib lib64 run usr var/run etc/ssh/*key
-    mkdir -p dev proc
-    mkdir -p usr/bin usr/sbin usr/lib usr/lib/x86_64-linux-gnu usr/lib/openssh usr/lib64
-    mkdir -p etc/ssh var/log run/sshd
-    mkdir -p root/.ssh var/backup -m 0700
-    ln -s usr/bin bin
-    ln -s usr/lib lib
-    ln -s usr/lib64 lib64
-    ln -st var ../run
-    touch var/log/lastlog var/log/wtmp run/utmp
-
-    info "2 - Copying essential files"
-    [ -f /etc/ssh/ssh_host_rsa_key ] && cp /etc/ssh/ssh_host_rsa_key etc/ssh
-    [ -f /etc/ssh/ssh_host_ecdsa_key ] && cp /etc/ssh/ssh_host_ecdsa_key etc/ssh
-    [ -f /etc/ssh/ssh_host_ed25519_key ] && cp /etc/ssh/ssh_host_ed25519_key etc/ssh
-    cp "${passwd}" etc
-    cp "${shadow}" etc
-    cp "${group}" etc
-    cp "${sshrc}" etc/ssh
-
-    info "3 - Copying binaries"
-    cp -f /lib/ld-linux.so.2 lib 2>/dev/null || cp -f /lib64/ld-linux-x86-64.so.2 lib64
-    cp /lib/x86_64-linux-gnu/libnss* lib/x86_64-linux-gnu
-
-    for dbin in /bin/sh /bin/ls /bin/mkdir /bin/cat /bin/rm /bin/sed /usr/bin/rsync /usr/bin/lastlog /usr/bin/touch /usr/sbin/sshd /usr/lib/openssh/sftp-server; do
-        cp -f "${dbin}" "${JAILDIR}/${jail}/${dbin}";
-        for lib in $(ldd "${dbin}" | grep -Eo "/.*so.[0-9\.]+"); do
-            cp -p "${lib}" "${JAILDIR}/${jail}/${lib}"
+    ;;
+    "status")
+    if [ -z "${jail}" ]; then
+        jails=$(ls "${JAILDIR}")
+        for jail in ${jails}; do
+            "${LIBDIR}/bkctld-${subcommand}" "${jail}"
         done
-    done
-}
-
-## sub functions : functions call by subcommand
-  
-sub_init() {
-    jail="${1}"
-    sshd_config="${TPLDIR}/sshd_config"
-    inctpl="${TPLDIR}/inc.tpl"
-    [ -f "${LOCALTPLDIR}/sshd_config" ] && sshd_config="${LOCALTPLDIR}/sshd_config"
-    [ -f "${LOCALTPLDIR}/inc.tpl" ] && inctpl="${LOCALTPLDIR}/inc.tpl"
-    check_jail "${jail}" && error "${jail} : trying to create existant jail"
-
-    rootdir=$(dirname "${JAILDIR}")
-    rootdir_inode=$(stat --format=%i "${rootdir}")
-    jaildir_inode=$(stat --format=%i "${JAILDIR}")
-    if [ "${rootdir_inode}" -eq 256 ] || [ "${jaildir_inode}" -eq 256 ]; then
-        /bin/btrfs subvolume create "${JAILDIR}/${jail}"
     else
-        mkdir -p "${JAILDIR}/${jail}"
+        "${LIBDIR}/bkctld-${subcommand}" "${jail}"
     fi
-    mk_jail "${jail}"
-    info "4 - Copie default sshd_config"
-    install -m 0640 "${sshd_config}" "${JAILDIR}/${jail}/${SSHD_CONFIG}"
-    info "5 - Set usable sshd port"
-    set_port "${jail}" auto
-    info "6 - Copie default inc configuration"
-    install -m 0640 "${inctpl}" "${CONFDIR}/${jail}"
-    notice "${jail} : created jail"
-}
-
-sub_update() {
-    jail="${1}"
-    check_jail "${jail}" || error "${jail} : trying to update inexistant jail"
-    check_jail_on "${jail}" && sub_stop "${jail}"
-
-    mk_jail "${jail}"
-    notice "${jail} : updated jail"
-}
-
-sub_remove() {
-    jail="${1}"
-    check_jail "${jail}" || error "${jail} : trying to remove inexistant jail"
-
-    check_jail_on "${jail}" && sub_stop "${jail}"
-    
-    rm -f "${CONFDIR}/${jail}"
-    jail_inode=$(stat --format=%i "${JAILDIR}/${jail}")
-    if [ "${jail_inode}" -eq 256 ]; then
-        /bin/btrfs subvolume delete "${JAILDIR}/${jail}" | debug
-    else
-        rm -rf "${JAILDIR}/${jail}" | debug
-    fi
-    if [ -d  "${INCDIR}/${jail}" ]; then
-        incs=$(ls "${INCDIR}/${jail}")
-        for inc in ${incs}; do
-            inc_inode=$(stat --format=%i "${INCDIR}/${jail}/${inc}")
-            if [ "${inc_inode}" -eq 256 ]; then
-                /bin/btrfs subvolume delete "${INCDIR}/${jail}/${inc}" | debug
-            else
-                warning "You need to purge ${INCDIR}/${jail}/${inc} manually !"
-            fi
-        done
-        rmdir --ignore-fail-on-non-empty "${INCDIR}/${jail}" | debug
-    fi
-    set_firewall "${jail}"
-    notice "${jail} : deleted jail"
-}
-
-sub_start() {
-    jail="${1}"
-    check_jail "${jail}" || error "${jail} : trying to start inexistant jail"
-    check_jail_on "${jail}" && error "${jail} : trying to start already running jail"
-
-    cd "${JAILDIR}/${jail}"
-    grep -q "${JAILDIR}/${jail}/proc" /proc/mounts || mount -t proc "proc-${jail}" proc
-    grep -q "${JAILDIR}/${jail}/dev" /proc/mounts || mount -nt tmpfs "dev-${jail}" dev
-    [ -e "dev/console" ] || mknod -m 622 dev/console c 5 1
-    [ -e "dev/null" ] || mknod -m 666 dev/null c 1 3
-    [ -e "dev/zero" ] || mknod -m 666 dev/zero c 1 5
-    [ -e "dev/ptmx" ] || mknod -m 666 dev/ptmx c 5 2
-    [ -e "dev/tty" ] || mknod -m 666 dev/tty c 5 0
-    [ -e "dev/random" ] || mknod -m 444 dev/random c 1 8
-    [ -e "dev/urandom" ] || mknod -m 444 dev/urandom c 1 9
-    chown root:tty dev/console dev/ptmx dev/tty
-    ln -fs proc/self/fd dev/fd
-    ln -fs proc/self/fd/0 dev/stdin
-    ln -fs proc/self/fd/1 dev/stdout
-    ln -fs proc/self/fd/2 dev/stderr
-    ln -fs proc/kcore dev/core
-    mkdir -p dev/pts
-    mkdir -p dev/shm
-    grep -q "${JAILDIR}/${jail}/dev/pts" /proc/mounts || mount -t devpts -o gid=4,mode=620 none dev/pts
-    grep -q "${JAILDIR}/${jail}/dev/shm" /proc/mounts || mount -t tmpfs none dev/shm
-    chroot "${JAILDIR}/${jail}" /usr/sbin/sshd -E /var/log/authlog || error "${jail} : error on starting sshd"
-    pid=$(cat "${JAILDIR}/${jail}/${SSHD_PID}")
-    notice "${jail} was started [${pid}]"
-}
-
-sub_stop() {
-    jail="${1}"
-    check_jail "${jail}" || error "${jail} : trying to stop inexistant jail"
-    check_jail_on "${jail}" || error "${jail} : trying to stop not running jail"
-
-    pid=$(cat "${JAILDIR}/${jail}/${SSHD_PID}")
-    for conn in $(ps --ppid "${pid}" -o pid=); do
-        kill "${conn}"
-    done
-    kill "${pid}" && notice "${jail} was stopped [${pid}]"
-    umount --lazy --recursive "${JAILDIR}/${jail}/dev"
-    umount --lazy "${JAILDIR}/${jail}/proc/"
-}
-
-sub_reload() {
-    jail="${1}"
-    check_jail "${jail}" || error "${jail} : trying to reload inexistant jail"
-    check_jail_on "${jail}" || error "${jail} : trying to reload not running jail"
-
-    pid=$(cat "${JAILDIR}/${jail}/${SSHD_PID}")
-
-    kill -HUP "${pid}" && notice "${jail} was reloaded [${pid}]"
-}
-
-sub_status() {
-    jail="${1}"
-    check_jail "${jail}" || error "${jail} : inexistant jail ! Use '$0 status' for list all"
-
-    inc=$(get_inc "${jail}")
-    if ( check_jail_on "${jail}" ); then
-        status="ON "
-    else
-        status="OFF"
-    fi
-    port=$(get_port "${jail}")
-    ip=$(get_ip "${jail}"|xargs|tr -s ' ' ',')
-    echo "${jail} ${status} ${port} ${inc} ${ip}" | awk '{ printf("%- 30s %- 10s %- 10s %- 10s %- 40s\n", $1, $2, $3, $4, $5); }'
-}
-
-sub_params() {
-    jail="${1}"
-    params="${2}"
-    option="${3}"
-    check_jail "${jail}" || error "${jail} : inexistant jail'"
-
-    if [ -z "${option}" ]; then
-        "get_${params}" "${jail}"
-    else
-        "set_${params}" "${jail}" "${option}"
-        check_jail_on "${jail}" && sub_reload "${jail}"
-        notice "${jail} : update ${params} => ${option}"
-    fi
-}
-
-sub_sync() {
-    jail="${1}"
-    check_jail "${jail}" || error "${jail} : trying to sync inexistant jail"
-
-    [ -n "${NODE}" ] || error "Sync need config of \$NODE in /etc/default/bkctld !"
-
-    jail="${1}"
-    ssh "${NODE}" bkctld init "${jail}" | debug
-    rsync -a "${JAILDIR}/${jail}/" "${NODE}:${JAILDIR}/${jail}/" --exclude proc/* --exclude sys/* --exclude dev/* --exclude run --exclude var/backup/*
-    rsync -a "${CONFDIR}/${jail}" "${NODE}:${CONFDIR}/${jail}"
-    if ( check_jail_on "${jail}" ); then
-        ssh "${NODE}" bkctld start "${jail}" | debug
-    fi
-    if [ -n "${FIREWALL_RULES}" ]; then
-        rsync -a "${FIREWALL_RULES}" "${NODE}:${FIREWALL_RULES}"
-        ssh "${NODE}" /etc/init.d/minifirewall restart | debug
-    fi
-}
-
-sub_inc() {
-    date=$(date +"%Y-%m-%d-%H")
-    jails=$(ls "${JAILDIR}")
-    for jail in ${jails}; do
-        inc="${INCDIR}/${jail}/${date}"
-        mkdir -p "${INCDIR}/${jail}"
-        if [ ! -d "${inc}" ]; then
-            start=$(date +"%H:%M:%S")
-            jail_inode=$(stat --format=%i "${JAILDIR}/${jail}")
-            if [ "$jail_inode" -eq 256 ]; then
-                /bin/btrfs subvolume snapshot -r "${JAILDIR}/${jail}" "${inc}" | debug
-            else
-                cp -alx "${JAILDIR}/${jail}/" "${inc}" | debug
-            fi
-            end=$(date +"%H:%M:%S")
-            notice "${jail} : made ${date} inc [${start}/${end}]"
-        else
-            warning "${jail} : trying to made already existant inc"
-        fi
-    done
-}
-
-sub_rm() {
-    empty="/tmp/bkctld-${$}-$(date +%N))"
-    mkdir "${empty}"
-    pidfile="/var/run/bkctld-rm.pid"
-    if [ -f "${pidfile}" ]; then
-        pid=$(cat "${pidfile}")
-        ps -u "${pid}" >/dev/null
-        if [ "${?}" -eq 0 ]; then
-            kill -9 "${pid}"
-            warning "${0} rm always run (PID ${pid}), killed by ${$} !"
-        fi
-        rm "${pidfile}"
-        fi
-    echo "${$}" > "${pidfile}"
-    jails=$(ls "${JAILDIR}")
-    for jail in ${jails}; do
-        incs=$(ls "${INCDIR}/${jail}")
-        if [ -f "${CONFDIR}/${jail}" ]; then
-            keepfile="${CONFDIR}/.keep-${jail}"
-            while read j; do
-                date=$( echo "${j}" | cut -d. -f1 )
-                before=$( echo "${j}" | cut -d. -f2 )
-                date -d "$(date "${date}") ${before}" "+%Y-%m-%d"
-            done < "${CONFDIR}/${jail}" > "${keepfile}"
-            for j in $(echo "${incs}" | grep -v -f "${keepfile}"); do
-                start=$(date +"%H:%M:%S")
-                inc_inode=$(stat --format=%i "${INCDIR}/${jail}/${j}")
-                if [ "${inc_inode}" -eq 256 ]; then
-                    /bin/btrfs subvolume delete "${INCDIR}/${jail}/${j}" | debug
-                else
-                    cd "${INCDIR}/${jail}"
-                    rsync -a --delete "${empty}/" "${j}/"
-                    rmdir "${j}"
-                fi
-                end=$(date +"%H:%M:%S")
-                notice "${jail} : deleted ${j} inc [${start}/${end}]"
-            done
-        fi
-    done
-    rmdir "${empty}"
-    rm "${pidfile}"
-}
-
-sub_check() {
-    cur_time=$(date "+%s")
-    return=0
-    nb_crit=0
-    nb_warn=0
-    nb_ok=0
-    nb_unkn=0
-    output=""
-
-    if [ -b "${BACKUP_DISK}" ]; then
-	cryptsetup isLuks "${BACKUP_DISK}"
-        if [ "$?" -eq 0 ]; then
-            if [ ! -b '/dev/mapper/backup' ]; then
-                echo "Luks disk ${BACKUP_DISK} is not mounted !\n"
-                echo "cryptsetup luksOpen ${BACKUP_DISK} backup"
-                exit 2
-            fi
-            BACKUP_DISK='/dev/mapper/backup'
-        fi
-        grep -qE "^${BACKUP_DISK} " /etc/mtab
-        if [ "$?" -ne 0 ]; then
-             echo "Backup disk ${BACKUP_DISK} is not mounted !\n"
-             echo "mount ${BACKUP_DISK} /backup"
-             exit 2
-        fi
-    fi
-
-    jails=$(ls "${JAILDIR}")
-    for jail in ${jails}; do
-        if [ -f "${JAILDIR}/${jail}/var/log/lastlog" ]; then
-            last_conn=$(stat --format=%Y "${JAILDIR}/${jail}/var/log/lastlog")
-            date_diff=$(( (cur_time - last_conn) / (60*60) ))
-            if [ "${date_diff}" -gt "${CRITICAL}" ]; then
-                nb_crit=$((nb_crit + 1))
-                output="${output}CRITICAL - ${jail} - ${date_diff} hours\n"
-                [ "${return}" -le 2 ] && return=2
-            elif [ "${date_diff}" -gt "${WARNING}" ]; then
-                nb_warn=$((nb_warn + 1))
-                output="${output}WARNING - ${jail} - ${date_diff} hours\n"
-                [ "${return}" -le 1 ] && return=1
-            else
-                nb_ok=$((nb_ok + 1))
-                output="${output}OK - ${jail} - ${date_diff} hours\n"
-            fi
-        else
-            nb_unkn=$((nb_unkn + 1))
-            output="${output}UNKNOWN - ${jail} doesn't have lastlog !\n"
-            [ "${return}" -le 3 ] && return=3
-        fi
-    done
-
-    [ "${return}" -ge 0 ] && header="OK"
-    [ "${return}" -ge 1 ] && header="WARNING"
-    [ "${return}" -ge 2 ] && header="CRITICAL"
-    [ "${return}" -ge 3 ] && header="UNKNOW"
-
-    printf "%s - %s UNK / %s CRIT / %s WARN / %s OK\n\n" "${header}" "${nb_unkn}" "${nb_crit}" "${nb_warn}" "${nb_ok}"
-
-    printf "${output}" | grep -E "^UNKNOW"
-    printf "${output}" | grep -E "^CRITICAL"
-    printf "${output}" | grep -E "^WARNING"
-    printf "${output}" | grep -E "^OK"
-
-    exit "${return}"
-}
-
-sub_stats() {
-    lsof "${IDX_FILE}" >/dev/null 2>&1 || nohup sh -s -- <<EOF >/dev/null 2>&1 &
-ionice -c3 "${DUC}" index -d "${IDX_FILE}" "${JAILDIR}"
-touch "${INDEX_DIR}/.lastrun.duc"
-EOF
-    [ ! -f "${INDEX_DIR}/.lastrun.duc" ] && notice "First run of DUC always in progress ..." && exit 0
-    [ ! -f ${IDX_FILE} ] && error "Index file do not exits !"
-    printf "Last update of index file : "
-    stat --format=%Y "${INDEX_DIR}/.lastrun.duc" | xargs -i -n1 date -R -d "@{}"
-    echo "<jail> <size> <incs> <lastconn>" | awk '{ printf("%- 30s %- 10s %- 10s %- 15s\n", $1, $2, $3, $4); }'
-    duc_output=$(mktemp)
-    stat_output=$(mktemp)
-    incs_output=$(mktemp)
-    trap "rm ${duc_output} ${incs_output} ${stat_output}" 0
-    "${DUC}" ls -d "${IDX_FILE}" "${JAILDIR}" > "${duc_output}"
-    awk '{ print $2 }' "${duc_output}" | while read jail; do
-        stat --format=%Y "/backup/jails/${jail}/var/log/lastlog" | xargs -i -n1 date -d "@{}" "+%d-%m-%Y" >> "${stat_output}"
-        get_inc "${jail}" >> "${incs_output}"
-    done
-    paste "${duc_output}" "${incs_output}" "${stat_output}" | awk '{ printf("%- 30s %- 10s %- 10s %- 15s\n", $2, $1, $3, $4); }'
-}
-
-## main function : check usage and valid params
-
-main() {
-    [ "$(id -u)" -ne 0 ] && error "You need to be root to run ${0} !"
-
-    [ -f /etc/default/bkctld ] && . /etc/default/bkctld
-    CONFDIR="${CONFDIR:-/etc/evobackup}"
-    BACKUP_DISK="${BACKUP_DISK:-}"
-    JAILDIR="${JAILDIR:-/backup/jails}"
-    INCDIR="${INCDIR:-/backup/incs}"
-    TPLDIR="${TPLDIR:-/usr/share/bkctld}"
-    INDEX_DIR="${INDEX_DIR:-/backup/index}"
-    IDX_FILE="${IDX_FILE:-${INDEX_DIR}/bkctld-jails.idx}"
-    LOCALTPLDIR="${LOCALTPLDIR:-/usr/local/share/bkctld}"
-    SSHD_PID="${SSHD_PID:-/run/sshd.pid}"
-    SSHD_CONFIG="${SSHD_CONFIG:-/etc/ssh/sshd_config}"
-    AUTHORIZED_KEYS="${AUTHORIZED_KEYS:-/root/.ssh/authorized_keys}"
-    FIREWALL_RULES="${FIREWALL_RULES:-}"
-    LOGLEVEL="${LOGLEVEL:-6}"
-    CRITICAL="${CRITICAL:-48}"
-    WARNING="${WARNING:-24}"
-    DUC=$(command -v duc-nox||command -v duc)
-    mkdir -p "${CONFDIR}" "${JAILDIR}" "${INCDIR}" "${INDEX_DIR}"
-    subcommand="${1:-}"
-    jail="${2:-}"
-    option="${3:-}"
-    case "${subcommand}" in
-        "" | "-h" | "--help")
-            usage
-            ;;
-        "inc" | "rm" | "check" | "stats")
-            "sub_${subcommand}"
-        ;;
-            "init")
-        if [ -n "${jail}" ]; then
-            "sub_${subcommand}" "${jail}"
-        else
-            usage
-        fi
-        ;;
-        "key" | "port" | "ip")
-        if [ -n "${jail}" ]; then
-            sub_params "${jail}" "${subcommand}" "${option}"
-        else
-            usage
-        fi
-        ;;
-        "start" | "stop" | "reload" | "restart" | "sync" | "update" | "remove")
-        if [ -n "${jail}" ]; then
-            if [ "${jail}" = "all" ]; then
-                jails=$(ls "${JAILDIR}")
-                for jail in ${jails}; do
-                    case "${subcommand}" in
-                        "start")
-                            check_jail_on "${jail}" || "sub_${subcommand}" "${jail}"
-                        ;;
-                        "stop" | "reload")
-                            check_jail_on "${jail}" && "sub_${subcommand}" "${jail}"
-                        ;;
-                        "restart")
-                            check_jail_on "${jail}" && sub_stop "${jail}"
-                            sub_start "${jail}"
-                        ;;
-                        *)
-                            "sub_${subcommand}" "${jail}"
-                        ;;
-                    esac
-                        done
-            else
-                if [ "${subcommand}" != "restart" ]; then
-                    "sub_${subcommand}" "${jail}"
-                else
-                    check_jail_on "${jail}" && sub_stop "${jail}"
-                    sub_start "${jail}"
-                fi
-            fi
-        else
-            usage
-        fi
-        ;;
-        "status")
-        if [ -z "${jail}" ]; then
-            jails=$(ls "${JAILDIR}")
-            for jail in ${jails}; do
-                "sub_${subcommand}" "${jail}"
-            done
-        else
-            "sub_${subcommand}" "${jail}"
-        fi
-        ;;
-        *)
-            shift
-            warning "'${subcommand}' is not a known subcommand." && usage
-            exit 1
-            ;;
-    esac
-}
-
-main "${@}"
+    ;;
+esac
diff --git a/lib/bkctld-check b/lib/bkctld-check
new file mode 100755
index 0000000..0e957b0
--- /dev/null
+++ b/lib/bkctld-check
@@ -0,0 +1,67 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+cur_time=$(date "+%s")
+return=0
+nb_crit=0
+nb_warn=0
+nb_ok=0
+nb_unkn=0
+output=""
+
+if [ -b "${BACKUP_DISK}" ]; then
+    cryptsetup isLuks "${BACKUP_DISK}"
+    if [ "$?" -eq 0 ]; then
+        if [ ! -b '/dev/mapper/backup' ]; then
+            echo "Luks disk ${BACKUP_DISK} is not mounted !\n"
+            echo "cryptsetup luksOpen ${BACKUP_DISK} backup"
+            exit 2
+        fi
+        BACKUP_DISK='/dev/mapper/backup'
+    fi
+    grep -qE "^${BACKUP_DISK} " /etc/mtab
+    if [ "$?" -ne 0 ]; then
+         echo "Backup disk ${BACKUP_DISK} is not mounted !\n"
+         echo "mount ${BACKUP_DISK} /backup"
+         exit 2
+    fi
+fi
+
+jails=$(ls "${JAILDIR}")
+for jail in ${jails}; do
+    if [ -f "${JAILDIR}/${jail}/var/log/lastlog" ]; then
+        last_conn=$(stat --format=%Y "${JAILDIR}/${jail}/var/log/lastlog")
+        date_diff=$(( (cur_time - last_conn) / (60*60) ))
+        if [ "${date_diff}" -gt "${CRITICAL}" ]; then
+            nb_crit=$((nb_crit + 1))
+            output="${output}CRITICAL - ${jail} - ${date_diff} hours\n"
+            [ "${return}" -le 2 ] && return=2
+        elif [ "${date_diff}" -gt "${WARNING}" ]; then
+            nb_warn=$((nb_warn + 1))
+            output="${output}WARNING - ${jail} - ${date_diff} hours\n"
+            [ "${return}" -le 1 ] && return=1
+        else
+            nb_ok=$((nb_ok + 1))
+            output="${output}OK - ${jail} - ${date_diff} hours\n"
+        fi
+    else
+        nb_unkn=$((nb_unkn + 1))
+        output="${output}UNKNOWN - ${jail} doesn't have lastlog !\n"
+        [ "${return}" -le 3 ] && return=3
+    fi
+done
+
+[ "${return}" -ge 0 ] && header="OK"
+[ "${return}" -ge 1 ] && header="WARNING"
+[ "${return}" -ge 2 ] && header="CRITICAL"
+[ "${return}" -ge 3 ] && header="UNKNOW"
+
+printf "%s - %s UNK / %s CRIT / %s WARN / %s OK\n\n" "${header}" "${nb_unkn}" "${nb_crit}" "${nb_warn}" "${nb_ok}"
+
+printf "${output}" | grep -E "^UNKNOW"
+printf "${output}" | grep -E "^CRITICAL"
+printf "${output}" | grep -E "^WARNING"
+printf "${output}" | grep -E "^OK"
+
+exit "${return}"
diff --git a/lib/bkctld-inc b/lib/bkctld-inc
new file mode 100755
index 0000000..f55a28c
--- /dev/null
+++ b/lib/bkctld-inc
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+date=$(date +"%Y-%m-%d-%H")
+jails=$(ls "${JAILDIR}")
+for jail in ${jails}; do
+    inc="${INCDIR}/${jail}/${date}"
+    mkdir -p "${INCDIR}/${jail}"
+    if [ ! -d "${inc}" ]; then
+        start=$(date +"%H:%M:%S")
+        jail_inode=$(stat --format=%i "${JAILDIR}/${jail}")
+        if [ "$jail_inode" -eq 256 ]; then
+            /bin/btrfs subvolume snapshot -r "${JAILDIR}/${jail}" "${inc}" | debug
+        else
+            cp -alx "${JAILDIR}/${jail}/" "${inc}" | debug
+        fi
+        end=$(date +"%H:%M:%S")
+        notice "${jail} : made ${date} inc [${start}/${end}]"
+    else
+        warning "${jail} : trying to made already existant inc"
+    fi
+done
diff --git a/lib/bkctld-init b/lib/bkctld-init
new file mode 100755
index 0000000..ddbe8ae
--- /dev/null
+++ b/lib/bkctld-init
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" && error "${jail} : trying to create existant jail"
+
+sshd_config="${TPLDIR}/sshd_config"
+inctpl="${TPLDIR}/inc.tpl"
+[ -f "${LOCALTPLDIR}/sshd_config" ] && sshd_config="${LOCALTPLDIR}/sshd_config"
+[ -f "${LOCALTPLDIR}/inc.tpl" ] && inctpl="${LOCALTPLDIR}/inc.tpl"
+
+rootdir=$(dirname "${JAILDIR}")
+rootdir_inode=$(stat --format=%i "${rootdir}")
+jaildir_inode=$(stat --format=%i "${JAILDIR}")
+if [ "${rootdir_inode}" -eq 256 ] || [ "${jaildir_inode}" -eq 256 ]; then
+    /bin/btrfs subvolume create "${JAILDIR}/${jail}"
+else
+    mkdir -p "${JAILDIR}/${jail}"
+fi
+. "${LIBDIR}/mkjail"
+info "4 - Copie default sshd_config"
+install -m 0640 "${sshd_config}" "${JAILDIR}/${jail}/${SSHD_CONFIG}"
+info "5 - Set usable sshd port"
+set_port "${jail}" auto
+info "6 - Copie default inc configuration"
+install -m 0640 "${inctpl}" "${CONFDIR}/${jail}"
+notice "${jail} : created jail"
diff --git a/lib/bkctld-ip b/lib/bkctld-ip
new file mode 120000
index 0000000..5b4f890
--- /dev/null
+++ b/lib/bkctld-ip
@@ -0,0 +1 @@
+bkctld-params
\ No newline at end of file
diff --git a/lib/bkctld-key b/lib/bkctld-key
new file mode 120000
index 0000000..5b4f890
--- /dev/null
+++ b/lib/bkctld-key
@@ -0,0 +1 @@
+bkctld-params
\ No newline at end of file
diff --git a/lib/bkctld-params b/lib/bkctld-params
new file mode 100755
index 0000000..f0fae46
--- /dev/null
+++ b/lib/bkctld-params
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+params="${2:-}"
+option="${3:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : inexistant jail'"
+
+if [ -z "${option}" ]; then
+    "get_${params}" "${jail}"
+else
+    "set_${params}" "${jail}" "${option}"
+    check_jail_on "${jail}" && . "${LIBDIR}/bkctld-reload" "${jail}"
+    notice "${jail} : update ${params} => ${option}"
+fi
diff --git a/lib/bkctld-port b/lib/bkctld-port
new file mode 120000
index 0000000..5b4f890
--- /dev/null
+++ b/lib/bkctld-port
@@ -0,0 +1 @@
+bkctld-params
\ No newline at end of file
diff --git a/lib/bkctld-reload b/lib/bkctld-reload
new file mode 100755
index 0000000..4c05dd4
--- /dev/null
+++ b/lib/bkctld-reload
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : trying to reload inexistant jail"
+check_jail_on "${jail}" || error "${jail} : trying to reload not running jail"
+
+pid=$(cat "${JAILDIR}/${jail}/${SSHD_PID}")
+
+kill -HUP "${pid}" && notice "${jail} was reloaded [${pid}]"
diff --git a/lib/bkctld-remove b/lib/bkctld-remove
new file mode 100755
index 0000000..13f668e
--- /dev/null
+++ b/lib/bkctld-remove
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : trying to remove inexistant jail"
+check_jail_on "${jail}" && . "${LIBDIR}/bkctld-stop" "${jail}"
+
+rm -f "${CONFDIR}/${jail}"
+jail_inode=$(stat --format=%i "${JAILDIR}/${jail}")
+if [ "${jail_inode}" -eq 256 ]; then
+    /bin/btrfs subvolume delete "${JAILDIR}/${jail}" | debug
+else
+    rm -rf "${JAILDIR}/${jail}" | debug
+fi
+if [ -d  "${INCDIR}/${jail}" ]; then
+    incs=$(ls "${INCDIR}/${jail}")
+    for inc in ${incs}; do
+        inc_inode=$(stat --format=%i "${INCDIR}/${jail}/${inc}")
+        if [ "${inc_inode}" -eq 256 ]; then
+            /bin/btrfs subvolume delete "${INCDIR}/${jail}/${inc}" | debug
+        else
+            warning "You need to purge ${INCDIR}/${jail}/${inc} manually !"
+        fi
+    done
+    rmdir --ignore-fail-on-non-empty "${INCDIR}/${jail}" | debug
+fi
+set_firewall "${jail}"
+notice "${jail} : deleted jail"
diff --git a/lib/bkctld-restart b/lib/bkctld-restart
new file mode 100755
index 0000000..3cef9ca
--- /dev/null
+++ b/lib/bkctld-restart
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -eu
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : trying to restart inexistant jail"
+check_jail_on "${jail}" && "${LIBDIR}/bkctld-stop" "${jail}"
+"${LIBDIR}/bkctld-start" "${jail}"
diff --git a/lib/bkctld-rm b/lib/bkctld-rm
new file mode 100755
index 0000000..30e80a8
--- /dev/null
+++ b/lib/bkctld-rm
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+empty="/tmp/bkctld-${$}-$(date +%N))"
+mkdir "${empty}"
+pidfile="/var/run/bkctld-rm.pid"
+if [ -f "${pidfile}" ]; then
+    pid=$(cat "${pidfile}")
+    ps -u "${pid}" >/dev/null
+    if [ "${?}" -eq 0 ]; then
+        kill -9 "${pid}"
+        warning "${0} rm always run (PID ${pid}), killed by ${$} !"
+    fi
+    rm "${pidfile}"
+    fi
+echo "${$}" > "${pidfile}"
+jails=$(ls "${JAILDIR}")
+for jail in ${jails}; do
+    incs=$(ls "${INCDIR}/${jail}")
+    if [ -f "${CONFDIR}/${jail}" ]; then
+        keepfile="${CONFDIR}/.keep-${jail}"
+        while read j; do
+            date=$( echo "${j}" | cut -d. -f1 )
+            before=$( echo "${j}" | cut -d. -f2 )
+            date -d "$(date "${date}") ${before}" "+%Y-%m-%d"
+        done < "${CONFDIR}/${jail}" > "${keepfile}"
+        for j in $(echo "${incs}" | grep -v -f "${keepfile}"); do
+            start=$(date +"%H:%M:%S")
+            inc_inode=$(stat --format=%i "${INCDIR}/${jail}/${j}")
+            if [ "${inc_inode}" -eq 256 ]; then
+                /bin/btrfs subvolume delete "${INCDIR}/${jail}/${j}" | debug
+            else
+                cd "${INCDIR}/${jail}"
+                rsync -a --delete "${empty}/" "${j}/"
+                rmdir "${j}"
+            fi
+            end=$(date +"%H:%M:%S")
+            notice "${jail} : deleted ${j} inc [${start}/${end}]"
+        done
+    fi
+done
+rmdir "${empty}"
+rm "${pidfile}"
diff --git a/lib/bkctld-start b/lib/bkctld-start
new file mode 100755
index 0000000..f2514ab
--- /dev/null
+++ b/lib/bkctld-start
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : trying to start inexistant jail"
+check_jail_on "${jail}" && error "${jail} : trying to start already running jail"
+
+cd "${JAILDIR}/${jail}"
+grep -q "${JAILDIR}/${jail}/proc" /proc/mounts || mount -t proc "proc-${jail}" proc
+grep -q "${JAILDIR}/${jail}/dev" /proc/mounts || mount -nt tmpfs "dev-${jail}" dev
+[ -e "dev/console" ] || mknod -m 622 dev/console c 5 1
+[ -e "dev/null" ] || mknod -m 666 dev/null c 1 3
+[ -e "dev/zero" ] || mknod -m 666 dev/zero c 1 5
+[ -e "dev/ptmx" ] || mknod -m 666 dev/ptmx c 5 2
+[ -e "dev/tty" ] || mknod -m 666 dev/tty c 5 0
+[ -e "dev/random" ] || mknod -m 444 dev/random c 1 8
+[ -e "dev/urandom" ] || mknod -m 444 dev/urandom c 1 9
+chown root:tty dev/console dev/ptmx dev/tty
+ln -fs proc/self/fd dev/fd
+ln -fs proc/self/fd/0 dev/stdin
+ln -fs proc/self/fd/1 dev/stdout
+ln -fs proc/self/fd/2 dev/stderr
+ln -fs proc/kcore dev/core
+mkdir -p dev/pts
+mkdir -p dev/shm
+grep -q "${JAILDIR}/${jail}/dev/pts" /proc/mounts || mount -t devpts -o gid=4,mode=620 none dev/pts
+grep -q "${JAILDIR}/${jail}/dev/shm" /proc/mounts || mount -t tmpfs none dev/shm
+chroot "${JAILDIR}/${jail}" /usr/sbin/sshd -E /var/log/authlog || error "${jail} : error on starting sshd"
+pidfile="${JAILDIR}/${jail}/${SSHD_PID}"
+for try in {1..10}; do
+    [ -f "${pidfile}" ] || sleep 0.3
+done
+pid=$(cat "${pidfile}")
+notice "${jail} was started [${pid}]"
diff --git a/lib/bkctld-stats b/lib/bkctld-stats
new file mode 100755
index 0000000..9e955ed
--- /dev/null
+++ b/lib/bkctld-stats
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+lsof "${IDX_FILE}" >/dev/null 2>&1 || nohup sh -s -- <<EOF >/dev/null 2>&1 &
+ce -c3 "${DUC}" index -d "${IDX_FILE}" "${JAILDIR}"
+touch "${INDEX_DIR}/.lastrun.duc"
+EOF
+[ ! -f "${INDEX_DIR}/.lastrun.duc" ] && notice "First run of DUC always in progress ..." && exit 0
+[ ! -f ${IDX_FILE} ] && error "Index file do not exits !"
+printf "Last update of index file : "
+stat --format=%Y "${INDEX_DIR}/.lastrun.duc" | xargs -i -n1 date -R -d "@{}"
+echo "<jail> <size> <incs> <lastconn>" | awk '{ printf("%- 30s %- 10s %- 10s %- 15s\n", $1, $2, $3, $4); }'
+duc_output=$(mktemp)
+stat_output=$(mktemp)
+incs_output=$(mktemp)
+trap "rm ${duc_output} ${incs_output} ${stat_output}" 0
+"${DUC}" ls -d "${IDX_FILE}" "${JAILDIR}" > "${duc_output}"
+awk '{ print $2 }' "${duc_output}" | while read jail; do
+    stat --format=%Y "/backup/jails/${jail}/var/log/lastlog" | xargs -i -n1 date -d "@{}" "+%d-%m-%Y" >> "${stat_output}"
+    get_inc "${jail}" >> "${incs_output}"
+done
+paste "${duc_output}" "${incs_output}" "${stat_output}" | awk '{ printf("%- 30s %- 10s %- 10s %- 15s\n", $2, $1, $3, $4); }'
diff --git a/lib/bkctld-status b/lib/bkctld-status
new file mode 100755
index 0000000..e0082d2
--- /dev/null
+++ b/lib/bkctld-status
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : inexistant jail ! Use '$0 status' for list all"
+
+inc=$(get_inc "${jail}")
+if ( check_jail_on "${jail}" ); then
+    status="ON "
+else
+    status="OFF"
+fi
+port=$(get_port "${jail}")
+ip=$(get_ip "${jail}"|xargs|tr -s ' ' ',')
+echo "${jail} ${status} ${port} ${inc} ${ip}" | awk '{ printf("%- 30s %- 10s %- 10s %- 10s %- 40s\n", $1, $2, $3, $4, $5); }'
diff --git a/lib/bkctld-stop b/lib/bkctld-stop
new file mode 100755
index 0000000..1bafc0b
--- /dev/null
+++ b/lib/bkctld-stop
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : trying to stop inexistant jail"
+check_jail_on "${jail}" || error "${jail} : trying to stop not running jail"
+
+pid=$(cat "${JAILDIR}/${jail}/${SSHD_PID}")
+for conn in $(ps --ppid "${pid}" -o pid=); do
+    kill "${conn}"
+done
+kill "${pid}" && notice "${jail} was stopped [${pid}]"
+umount --lazy --recursive "${JAILDIR}/${jail}/dev"
+umount --lazy "${JAILDIR}/${jail}/proc/"
diff --git a/lib/bkctld-sync b/lib/bkctld-sync
new file mode 100755
index 0000000..6081b7b
--- /dev/null
+++ b/lib/bkctld-sync
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : trying to sync inexistant jail"
+
+[ -n "${NODE}" ] || error "Sync need config of \$NODE in /etc/default/bkctld !"
+
+jail="${1}"
+ssh "${NODE}" "${LIBDIR}/bkctld-init" "${jail}" | debug
+rsync -a "${JAILDIR}/${jail}/" "${NODE}:${JAILDIR}/${jail}/" --exclude proc/* --exclude sys/* --exclude dev/* --exclude run --exclude var/backup/*
+rsync -a "${CONFDIR}/${jail}" "${NODE}:${CONFDIR}/${jail}"
+if ( check_jail_on "${jail}" ); then
+    ssh "${NODE}" "${LIBDIR}/bkctld-start" "${jail}" | debug
+fi
+if [ -n "${FIREWALL_RULES}" ]; then
+    rsync -a "${FIREWALL_RULES}" "${NODE}:${FIREWALL_RULES}"
+    ssh "${NODE}" /etc/init.d/minifirewall restart | debug
+fi
diff --git a/lib/bkctld-update b/lib/bkctld-update
new file mode 100755
index 0000000..8ccaf50
--- /dev/null
+++ b/lib/bkctld-update
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"
+
+jail="${1:-}"
+[ -n "${jail}" ] || usage
+check_jail "${jail}" || error "${jail} : trying to update inexistant jail"
+check_jail_on "${jail}" && . "${LIBDIR}$/bkctld-stop" "${jail}"
+
+. "${LIBDIR}/mkjail"
+notice "${jail} : updated jail"
diff --git a/lib/config b/lib/config
new file mode 100755
index 0000000..0c14959
--- /dev/null
+++ b/lib/config
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+[ -f /etc/default/bkctld ] && . /etc/default/bkctld
+LIBDIR=${LIBDIR:-/usr/lib/bkctld}
+CONFDIR="${CONFDIR:-/etc/evobackup}"
+BACKUP_DISK="${BACKUP_DISK:-}"
+JAILDIR="${JAILDIR:-/backup/jails}"
+INCDIR="${INCDIR:-/backup/incs}"
+TPLDIR="${TPLDIR:-/usr/share/bkctld}"
+INDEX_DIR="${INDEX_DIR:-/backup/index}"
+IDX_FILE="${IDX_FILE:-${INDEX_DIR}/bkctld-jails.idx}"
+LOCALTPLDIR="${LOCALTPLDIR:-/usr/local/share/bkctld}"
+SSHD_PID="${SSHD_PID:-/run/sshd.pid}"
+SSHD_CONFIG="${SSHD_CONFIG:-/etc/ssh/sshd_config}"
+AUTHORIZED_KEYS="${AUTHORIZED_KEYS:-/root/.ssh/authorized_keys}"
+FIREWALL_RULES="${FIREWALL_RULES:-}"
+LOGLEVEL="${LOGLEVEL:-6}"
+CRITICAL="${CRITICAL:-48}"
+WARNING="${WARNING:-24}"
+DUC=$(command -v duc-nox||command -v duc)
+
+. "${LIBDIR}/logging"
+. "${LIBDIR}/functions"
diff --git a/lib/functions b/lib/functions
new file mode 100755
index 0000000..d694c84
--- /dev/null
+++ b/lib/functions
@@ -0,0 +1,133 @@
+#!/bin/sh
+
+usage() {
+    cat <<EOF
+Usage: $0 <subcommand> [options]
+Subcommands:
+    init        <jailname>                      Init jail <jailname>
+    update      <jailname>|all                  Update jail <jailname> or all
+    remove      <jailname>|all                  Remove jail <jailname> or all
+    start       <jailname>|all                  Start jail <jailname> or all
+    stop        <jailname>|all                  Stop jail <jailname> or all
+    reload      <jailname>|all                  Reload jail <jailname> or all
+    restart     <jailname>|all                  Restart jail <jailname> or all
+    sync        <jailname>|all                  Sync jail <jailname> or all to another node
+    status      [<jailname>]                    Print status of <jailname> (default all jail)
+    key         <jailname>      [<keyfile>]     Set or get ssh pubic key of <jailname>
+    port        <jailname>      [<port>|auto]   Set or get ssh port of <jailname>
+    ip          <jailname>      [<ip>|all]      Set or get allowed(s) ip(s) of <jailname>
+    inc                                         Make incremental inc of all jails
+    rm                                          Remove old incremtal inc of all jails
+    check                                       Run check on jails (NRPE output)
+    stats                                       Make and display stats on jails (size, lastconn)
+
+EOF
+exit 1
+}
+
+check_jail() {
+    jail="${1}"
+    [ -d "${JAILDIR}/${jail}" ] && return 0
+    return 1
+}
+
+check_jail_on() {
+    jail="${1}"
+    return=1
+    if [ -f "${JAILDIR}/${jail}/${SSHD_PID}" ]; then
+        pid=$(cat "${JAILDIR}/${jail}/${SSHD_PID}")
+        ps -p "${pid}" > /dev/null && return=0
+    fi
+    if [ "${return}" -eq 1 ]; then
+        rm -f "${JAILDIR}/${jail}/${SSHD_PID}"
+        grep -q "${JAILDIR}/${jail}/proc" /proc/mounts && umount --lazy "${JAILDIR}/${jail}/proc/"
+        grep -q "${JAILDIR}/${jail}/dev" /proc/mounts && umount --lazy --recursive "${JAILDIR}/${jail}/dev"
+    fi
+    return "${return}"
+}
+
+get_port() {
+    jail="${1}"
+    port=$(grep -E "Port [0-9]+" "${JAILDIR}/${jail}/${SSHD_CONFIG}"|grep -oE "[0-9]+")
+    echo "${port}"
+}
+
+get_key() {
+    jail="${1}"
+    if [ -f "${JAILDIR}/${jail}/${AUTHORIZED_KEYS}" ]; then
+        cat "${JAILDIR}/${jail}/${AUTHORIZED_KEYS}"
+    fi
+}
+
+get_ip() {
+    jail="${1}"
+    grep -E "^AllowUsers" "${JAILDIR}/$jail/${SSHD_CONFIG}"|grep -Eo "root@[^ ]+"| while read allow; do
+        echo "${allow}"|cut -d'@' -f2
+    done
+}
+
+get_inc() {
+    jail="${1}"
+    inc="0"
+        if [ -f "${CONFDIR}/${jail}" ]; then
+            day=$(grep -c "day" "${CONFDIR}/${jail}")
+            month=$(grep -c "month" "${CONFDIR}/${jail}")
+            inc="${day}/${month}"
+        fi
+    echo "${inc}"
+}
+
+set_port() {
+    jail="${1}"
+    port="${2}"
+    if [ "${port}" = "auto" ]; then
+        port=$(grep -h Port "${JAILDIR}"/*/"${SSHD_CONFIG}" 2>/dev/null | grep -Eo "[0-9]+" | sort -n | tail -1)
+        port=$((port+1))
+        [ "${port}" -le 1 ] && port=2222
+    fi
+    sed -i "s/^Port .*/Port ${port}/" "${JAILDIR}/$jail/${SSHD_CONFIG}"
+    set_firewall "${jail}"
+}
+
+set_key() {
+    jail="${1}"
+    keyfile="${2}"
+    [ -e "${keyfile}" ] || error "Keyfile ${keyfile} dosen't exist !"
+    cat "${keyfile}" > "${JAILDIR}/${jail}/${AUTHORIZED_KEYS}"
+    chmod 600 "${JAILDIR}/${jail}/${AUTHORIZED_KEYS}"
+}
+
+set_ip() {
+    jail="${1}"
+    ip="${2}"
+    if [ "${ip}" = "all" ] || [ "${ip}" = "0.0.0.0/0" ]; then
+        ips="0.0.0.0/0"
+    else
+        ips=$(get_ip "${jail}")
+        ips=$(echo "${ips}" "${ip}"|xargs -n1|grep -v "0.0.0.0/0"|sort|uniq)
+    fi
+    allow="AllowUsers"
+    for ip in $ips; do
+        allow="${allow} root@${ip}"
+    done
+    sed -i "s~^AllowUsers .*~${allow}~" "${JAILDIR}/$jail/${SSHD_CONFIG}"
+    set_firewall "${jail}"
+}
+
+set_firewall() {
+    jail="${1}"
+    if [ -n "${FIREWALL_RULES}" ]; then
+        if [ -f "${FIREWALL_RULES}" ]; then
+            sed -i "/#${jail}$/d" "${FIREWALL_RULES}"
+        fi
+        if ( check_jail "${jail}" ); then
+            port=$(get_port "${jail}")
+            for ip in $(get_ip "${jail}"); do
+                echo "/sbin/iptables -A INPUT -p tcp --sport 1024: --dport ${port} -s ${ip} -j ACCEPT #${jail}" >> "${FIREWALL_RULES}"
+            done
+            if [ -f /etc/init.d/minifirewall ]; then
+                /etc/init.d/minifirewall restart >/dev/null
+            fi
+        fi
+    fi
+}
diff --git a/lib/logging b/lib/logging
new file mode 100755
index 0000000..529de4c
--- /dev/null
+++ b/lib/logging
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+debug() {
+    msg="${1:-$(cat /dev/stdin)}"
+    if [ "${LOGLEVEL}" -ge 7 ]; then
+        echo "${msg}"
+        logger -t bkctld -p daemon.debug "${msg}"
+    fi
+}
+
+info() {
+    msg="${1:-$(cat /dev/stdin)}"
+    if [ "${LOGLEVEL}" -ge 6 ]; then
+        tty -s && echo "${msg}"
+        logger -t bkctld -p daemon.info "${msg}"
+    fi
+}
+
+notice() {
+    msg="${1:-$(cat /dev/stdin)}"
+    tty -s && echo "${msg}"
+    [ "${LOGLEVEL}" -ge 5 ] && logger -t bkctld -p daemon.notice "${msg}"
+}
+
+warning() {
+    msg="${1:-$(cat /dev/stdin)}"
+    tty -s && echo "WARNING : ${msg}" >&2
+    if [ "${LOGLEVEL}" -ge 4 ]; then
+        tty -s || echo "WARNING : ${msg}" >&2
+        logger -t bkctld -p daemon.warning "${msg}"
+    fi
+}
+
+error() {
+    msg="${1:-$(cat /dev/stdin)}"
+    tty -s && echo "ERROR : ${msg}" >&2
+    if [ "${LOGLEVEL}" -ge 5 ]; then
+        tty -s || echo "ERROR : ${msg}" >&2
+        logger -t bkctld -p daemon.error "${msg}"
+    fi
+    exit 1
+}
diff --git a/lib/mkjail b/lib/mkjail
new file mode 100755
index 0000000..e21374d
--- /dev/null
+++ b/lib/mkjail
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+passwd="${TPLDIR}/passwd"
+shadow="${TPLDIR}/shadow"
+group="${TPLDIR}/group"
+sshrc="${TPLDIR}/sshrc"
+[ -f "${LOCALTPLDIR}/passwd" ] && passwd="${LOCALTPLDIR}/passwd"
+[ -f "${LOCALTPLDIR}/shadow" ] && shadow="${LOCALTPLDIR}/shadow"
+[ -f "${LOCALTPLDIR}/group" ] && group="${LOCALTPLDIR}/group"
+[ -f "${LOCALTPLDIR}/sshrc" ] && group="${LOCALTPLDIR}/sshrc"
+umask 077
+
+info "1 - Creating the chroot"
+cd "${JAILDIR}/${jail}"
+rm -rf bin lib lib64 run usr var/run etc/ssh/*key
+mkdir -p dev proc
+mkdir -p usr/bin usr/sbin usr/lib usr/lib/x86_64-linux-gnu usr/lib/openssh usr/lib64
+mkdir -p etc/ssh var/log run/sshd
+mkdir -p root/.ssh var/backup -m 0700
+ln -s usr/bin bin
+ln -s usr/lib lib
+ln -s usr/lib64 lib64
+ln -st var ../run
+touch var/log/lastlog var/log/wtmp run/utmp
+
+info "2 - Copying essential files"
+[ -f /etc/ssh/ssh_host_rsa_key ] && cp /etc/ssh/ssh_host_rsa_key etc/ssh
+[ -f /etc/ssh/ssh_host_ecdsa_key ] && cp /etc/ssh/ssh_host_ecdsa_key etc/ssh
+[ -f /etc/ssh/ssh_host_ed25519_key ] && cp /etc/ssh/ssh_host_ed25519_key etc/ssh
+cp "${passwd}" etc
+cp "${shadow}" etc
+cp "${group}" etc
+cp "${sshrc}" etc/ssh
+
+info "3 - Copying binaries"
+cp -f /lib/ld-linux.so.2 lib 2>/dev/null || cp -f /lib64/ld-linux-x86-64.so.2 lib64
+cp /lib/x86_64-linux-gnu/libnss* lib/x86_64-linux-gnu
+
+for dbin in /bin/sh /bin/ls /bin/mkdir /bin/cat /bin/rm /bin/sed /usr/bin/rsync /usr/bin/lastlog /usr/bin/touch /usr/sbin/sshd /usr/lib/openssh/sftp-server; do
+    cp -f "${dbin}" "${JAILDIR}/${jail}/${dbin}";
+    for lib in $(ldd "${dbin}" | grep -Eo "/.*so.[0-9\.]+"); do
+        cp -p "${lib}" "${JAILDIR}/${jail}/${lib}"
+    done
+done