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-rw-r--r--src/etc/dhcp/dhclient-enter-hooks.d/01-vyos-logging20
-rw-r--r--src/etc/dhcp/dhclient-enter-hooks.d/02-vyos-stopdhclient27
-rw-r--r--src/etc/dhcp/dhclient-enter-hooks.d/03-vyos-ipwrapper87
-rw-r--r--src/etc/dhcp/dhclient-enter-hooks.d/04-vyos-resolvconf44
-rw-r--r--src/etc/dhcp/dhclient-enter-hooks.d/05-vyos-mtureplace38
-rw-r--r--src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup104
-rw-r--r--src/etc/dhcp/dhclient-exit-hooks.d/02-vyos-dhcp-renew-rfc3442148
-rw-r--r--src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook44
8 files changed, 512 insertions, 0 deletions
diff --git a/src/etc/dhcp/dhclient-enter-hooks.d/01-vyos-logging b/src/etc/dhcp/dhclient-enter-hooks.d/01-vyos-logging
new file mode 100644
index 000000000..121fb21be
--- /dev/null
+++ b/src/etc/dhcp/dhclient-enter-hooks.d/01-vyos-logging
@@ -0,0 +1,20 @@
+# enable logging
+LOG_ENABLE="yes"
+LOG_STDERR="no"
+LOG_TAG="dhclient-script-vyos"
+
+function logmsg () {
+ # log message to journal
+ case $1 in
+ error) LOG_PRIO="daemon.err" ;;
+ info) LOG_PRIO="daemon.info" ;;
+ esac
+
+ if [ "${LOG_ENABLE}" == "yes" ] ; then
+ if [ "${LOG_STDERR}" == "yes" ] ; then
+ /usr/bin/logger -e --id=$$ -s -p ${LOG_PRIO} -t ${LOG_TAG} "${@:2}"
+ else
+ /usr/bin/logger -e --id=$$ -p ${LOG_PRIO} -t ${LOG_TAG} "${@:2}"
+ fi
+ fi
+}
diff --git a/src/etc/dhcp/dhclient-enter-hooks.d/02-vyos-stopdhclient b/src/etc/dhcp/dhclient-enter-hooks.d/02-vyos-stopdhclient
new file mode 100644
index 000000000..d5d90632c
--- /dev/null
+++ b/src/etc/dhcp/dhclient-enter-hooks.d/02-vyos-stopdhclient
@@ -0,0 +1,27 @@
+# skip all of this if dhclient-script running by stop command defined below
+if [ -z ${CONTROLLED_STOP} ] ; then
+ # stop dhclient for this interface, if it is not current one
+ # get PID for current dhclient
+ current_dhclient=`ps --no-headers --format ppid --pid $$ | awk '{ print $1 }'`
+
+ # get PID for master process (current can be a fork)
+ master_dhclient=`ps --no-headers --format ppid --pid $current_dhclient | awk '{ print $1 }'`
+
+ # get IP version for current dhclient
+ ipversion_arg=`ps --no-headers --format args --pid $current_dhclient | awk '{ print $2 }'`
+
+ # get list of all dhclient running for current interface
+ dhclients_pids=(`ps --no-headers --format pid,args -C dhclient | awk -v IFACE="/sbin/dhclient $ipversion_arg .*$interface$" '$0 ~ IFACE { print $1 }'`)
+
+ logmsg info "Current dhclient PID: $current_dhclient, Parent PID: $master_dhclient, IP version: $ipversion_arg, All dhclients for interface $interface: ${dhclients_pids[@]}"
+ # stop all dhclients for current interface, except current one
+ for dhclient in ${dhclients_pids[@]}; do
+ if ([ $dhclient -ne $current_dhclient ] && [ $dhclient -ne $master_dhclient ]); then
+ logmsg info "Stopping dhclient with PID: ${dhclient}"
+ # get path to PID-file of dhclient process
+ local dhclient_pidfile=`ps --no-headers --format args --pid $dhclient | awk 'match($0, ".*-pf (/.*pid) .*", PF) { print PF[1] }'`
+ # stop dhclient with native command - this will run dhclient-script with correct reason unlike simple kill
+ dhclient -e CONTROLLED_STOP=yes -x -pf $dhclient_pidfile
+ fi
+ done
+fi
diff --git a/src/etc/dhcp/dhclient-enter-hooks.d/03-vyos-ipwrapper b/src/etc/dhcp/dhclient-enter-hooks.d/03-vyos-ipwrapper
new file mode 100644
index 000000000..d1161e704
--- /dev/null
+++ b/src/etc/dhcp/dhclient-enter-hooks.d/03-vyos-ipwrapper
@@ -0,0 +1,87 @@
+# redefine ip command to use FRR when it is available
+
+# get status of FRR
+function frr_alive () {
+ /usr/lib/frr/watchfrr.sh all_status
+ if [ "$?" -eq "0" ] ; then
+ logmsg info "FRR status: running"
+ return 0
+ else
+ logmsg info "FRR status: not running"
+ return 1
+ fi
+}
+
+# convert ip route command to vtysh
+function iptovtysh () {
+ # prepare variables for vtysh command
+ local VTYSH_DISTANCE="210"
+ local VTYSH_TAG="210"
+ local VTYSH_NETADDR=""
+ local VTYSH_GATEWAY=""
+ local VTYSH_DEV=""
+ # convert default route to 0.0.0.0/0
+ if [ "$4" == "default" ] ; then
+ VTYSH_NETADDR="0.0.0.0/0"
+ else
+ VTYSH_NETADDR=$4
+ fi
+ # add /32 to ip addresses without netmasks
+ if [[ ! $VTYSH_NETADDR =~ ^.*/[[:digit:]]+$ ]] ; then
+ VTYSH_NETADDR="$VTYSH_NETADDR/32"
+ fi
+ # get gateway address
+ if [ "$5" == "via" ] ; then
+ VTYSH_GATEWAY=$6
+ fi
+ # get device name
+ if [ "$5" == "dev" ]; then
+ VTYSH_DEV=$6
+ elif [ "$7" == "dev" ]; then
+ VTYSH_DEV=$8
+ fi
+
+ # Add route to VRF routing table
+ local VTYSH_VRF_NAME=$(basename /sys/class/net/$VTYSH_DEV/upper_* | sed -e 's/upper_//')
+ if [ -n $VTYSH_VRF_NAME ]; then
+ VTYSH_VRF="vrf $VTYSH_VRF_NAME"
+ fi
+ VTYSH_CMD="ip route $VTYSH_NETADDR $VTYSH_GATEWAY $VTYSH_DEV tag $VTYSH_TAG $VTYSH_DISTANCE $VTYSH_VRF"
+
+ # delete route if the command is "del"
+ if [ "$3" == "del" ] ; then
+ VTYSH_CMD="no $VTYSH_CMD"
+ fi
+ logmsg info "Converted vtysh command: \"$VTYSH_CMD\""
+}
+
+# delete the same route from kernel before adding new one
+function delroute () {
+ logmsg info "Checking if the route presented in kernel: $@"
+ if /usr/sbin/ip route show $@ | grep -qx "$1 " ; then
+ logmsg info "Deleting IP route: \"/usr/sbin/ip route del $@\""
+ /usr/sbin/ip route del $@
+ fi
+}
+
+# replace ip command with this wrapper
+function ip () {
+ # pass comand to system `ip` if this is not related to routes change
+ if [ "$2" != "route" ] ; then
+ logmsg info "Passing command to /usr/sbin/ip: \"$@\""
+ /usr/sbin/ip $@
+ else
+ # if we want to work with routes, try to use FRR first
+ if frr_alive ; then
+ delroute ${@:4}
+ iptovtysh $@
+ logmsg info "Sending command to vtysh"
+ vtysh -c "conf t" -c "$VTYSH_CMD"
+ else
+ # add ip route to kernel
+ logmsg info "Modifying routes in kernel: \"/usr/sbin/ip $@\""
+ /usr/sbin/ip $@
+ fi
+ fi
+}
+
diff --git a/src/etc/dhcp/dhclient-enter-hooks.d/04-vyos-resolvconf b/src/etc/dhcp/dhclient-enter-hooks.d/04-vyos-resolvconf
new file mode 100644
index 000000000..24090e2a8
--- /dev/null
+++ b/src/etc/dhcp/dhclient-enter-hooks.d/04-vyos-resolvconf
@@ -0,0 +1,44 @@
+# modified make_resolv_conf () for VyOS
+make_resolv_conf() {
+ hostsd_client="/usr/bin/vyos-hostsd-client"
+ hostsd_changes=
+
+ if [ -n "$new_domain_name" ]; then
+ logmsg info "Deleting search domains with tag \"dhcp-$interface\" via vyos-hostsd-client"
+ $hostsd_client --delete-search-domains --tag "dhcp-$interface"
+ logmsg info "Adding domain name \"$new_domain_name\" as search domain with tag \"dhcp-$interface\" via vyos-hostsd-client"
+ $hostsd_client --add-search-domains "$new_domain_name" --tag "dhcp-$interface"
+ hostsd_changes=y
+ fi
+
+ if [ -n "$new_dhcp6_domain_search" ]; then
+ logmsg info "Deleting search domains with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
+ $hostsd_client --delete-search-domains --tag "dhcpv6-$interface"
+ logmsg info "Adding search domain \"$new_dhcp6_domain_search\" with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
+ $hostsd_client --add-search-domains "$new_dhcp6_domain_search" --tag "dhcpv6-$interface"
+ hostsd_changes=y
+ fi
+
+ if [ -n "$new_domain_name_servers" ]; then
+ logmsg info "Deleting nameservers with tag \"dhcp-$interface\" via vyos-hostsd-client"
+ $hostsd_client --delete-name-servers --tag "dhcp-$interface"
+ logmsg info "Adding nameservers \"$new_domain_name_servers\" with tag \"dhcp-$interface\" via vyos-hostsd-client"
+ $hostsd_client --add-name-servers $new_domain_name_servers --tag "dhcp-$interface"
+ hostsd_changes=y
+ fi
+
+ if [ -n "$new_dhcp6_name_servers" ]; then
+ logmsg info "Deleting nameservers with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
+ $hostsd_client --delete-name-servers --tag "dhcpv6-$interface"
+ logmsg info "Adding nameservers \"$new_dhcpv6_name_servers\" with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
+ $hostsd_client --add-name-servers $new_dhcpv6_name_servers --tag "dhcpv6-$interface"
+ hostsd_changes=y
+ fi
+
+ if [ $hostsd_changes ]; then
+ logmsg info "Applying changes via vyos-hostsd-client"
+ $hostsd_client --apply
+ else
+ logmsg info "No changes to apply via vyos-hostsd-client"
+ fi
+}
diff --git a/src/etc/dhcp/dhclient-enter-hooks.d/05-vyos-mtureplace b/src/etc/dhcp/dhclient-enter-hooks.d/05-vyos-mtureplace
new file mode 100644
index 000000000..4a08765ba
--- /dev/null
+++ b/src/etc/dhcp/dhclient-enter-hooks.d/05-vyos-mtureplace
@@ -0,0 +1,38 @@
+# replace MTU with value from configuration
+
+# get MTU value via Python
+# as configuration is not available to cli-shell-api at the first boot, we must use vyos.config, which contain workaround for this, instead clean shell
+function get_mtu {
+python3 - <<PYEND
+from vyos.config import Config
+import os
+import re
+
+# check if interface is not VLAN and fix name if necessary
+interface_name = os.getenv('interface', '')
+regex_filter = re.compile('^(?P<interface>\w+)\.(?P<vid>\d+)$')
+if regex_filter.search(interface_name):
+ iface = regex_filter.search(interface_name).group('interface')
+ vid = regex_filter.search(interface_name).group('vid')
+ interface_name = "{} vif {}".format(iface, vid)
+
+# initialize config
+config = Config()
+if config.exists('interfaces'):
+ iface_types = config.list_nodes('interfaces')
+ for iface_type in iface_types:
+ # check if configuration contain MTU value for interface and return (print) it
+ if config.exists("interfaces {} {} mtu".format(iface_type, interface_name)):
+ print(format(config.return_value("interfaces {} {} mtu".format(iface_type, interface_name))))
+PYEND
+}
+
+# check if DHCP server return MTU value
+if [ -n "$new_interface_mtu" ]; then
+ # try to get MTU from config and replace original one
+ configured_mtu="$(get_mtu)"
+ if [[ -n $configured_mtu ]] ; then
+ logmsg info "Replacing MTU value for $interface with preconfigured one: $configured_mtu"
+ new_interface_mtu="$configured_mtu"
+ fi
+fi
diff --git a/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup b/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup
new file mode 100644
index 000000000..b768e1ae5
--- /dev/null
+++ b/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup
@@ -0,0 +1,104 @@
+##
+## VyOS cleanup
+##
+# NOTE: here we use 'ip' wrapper, therefore a route will be actually deleted via /usr/sbin/ip or vtysh, according to the system state
+hostsd_client="/usr/bin/vyos-hostsd-client"
+hostsd_changes=
+
+if [[ $reason =~ (EXPIRE|FAIL|RELEASE|STOP) ]]; then
+ # delete search domains and nameservers via vyos-hostsd
+ logmsg info "Deleting search domains with tag \"dhcp-$interface\" via vyos-hostsd-client"
+ $hostsd_client --delete-search-domains --tag "dhcp-$interface"
+ logmsg info "Deleting nameservers with tag \"dhcp-${interface}\" via vyos-hostsd-client"
+ $hostsd_client --delete-name-servers --tag "dhcp-${interface}"
+ hostsd_changes=y
+
+ # try to delete default ip route
+ for router in $old_routers; do
+ # check if we are bound to a VRF
+ local vrf_name=$(basename /sys/class/net/${interface}/upper_* | sed -e 's/upper_//')
+ if [ -n $vrf_name ]; then
+ vrf="vrf $vrf_name"
+ fi
+
+ logmsg info "Deleting default route: via $router dev ${interface} ${vrf}"
+ ip -4 route del default via $router dev ${interface} ${vrf}
+ done
+
+ # delete rfc3442 routes
+ if [ -n "$old_rfc3442_classless_static_routes" ]; then
+ set -- $old_rfc3442_classless_static_routes
+ while [ $# -gt 0 ]; do
+ net_length=$1
+ via_arg=''
+ case $net_length in
+ 32|31|30|29|28|27|26|25)
+ if [ $# -lt 9 ]; then
+ return 1
+ fi
+ net_address="${2}.${3}.${4}.${5}"
+ gateway="${6}.${7}.${8}.${9}"
+ shift 9
+ ;;
+ 24|23|22|21|20|19|18|17)
+ if [ $# -lt 8 ]; then
+ return 1
+ fi
+ net_address="${2}.${3}.${4}.0"
+ gateway="${5}.${6}.${7}.${8}"
+ shift 8
+ ;;
+ 16|15|14|13|12|11|10|9)
+ if [ $# -lt 7 ]; then
+ return 1
+ fi
+ net_address="${2}.${3}.0.0"
+ gateway="${4}.${5}.${6}.${7}"
+ shift 7
+ ;;
+ 8|7|6|5|4|3|2|1)
+ if [ $# -lt 6 ]; then
+ return 1
+ fi
+ net_address="${2}.0.0.0"
+ gateway="${3}.${4}.${5}.${6}"
+ shift 6
+ ;;
+ 0) # default route
+ if [ $# -lt 5 ]; then
+ return 1
+ fi
+ net_address="0.0.0.0"
+ gateway="${2}.${3}.${4}.${5}"
+ shift 5
+ ;;
+ *) # error
+ return 1
+ ;;
+ esac
+ # take care of link-local routes
+ if [ "${gateway}" != '0.0.0.0' ]; then
+ via_arg="via ${gateway}"
+ fi
+ # delete route (ip detects host routes automatically)
+ ip -4 route del "${net_address}/${net_length}" \
+ ${via_arg} dev "${interface}" >/dev/null 2>&1
+ done
+ fi
+fi
+
+if [[ $reason =~ (EXPIRE6|RELEASE6|STOP6) ]]; then
+ # delete search domains and nameservers via vyos-hostsd
+ logmsg info "Deleting search domains with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
+ $hostsd_client --delete-search-domains --tag "dhcpv6-$interface"
+ logmsg info "Deleting nameservers with tag \"dhcpv6-${interface}\" via vyos-hostsd-client"
+ $hostsd_client --delete-name-servers --tag "dhcpv6-${interface}"
+ hostsd_changes=y
+fi
+
+if [ $hostsd_changes ]; then
+ logmsg info "Applying changes via vyos-hostsd-client"
+ $hostsd_client --apply
+else
+ logmsg info "No changes to apply via vyos-hostsd-client"
+fi
diff --git a/src/etc/dhcp/dhclient-exit-hooks.d/02-vyos-dhcp-renew-rfc3442 b/src/etc/dhcp/dhclient-exit-hooks.d/02-vyos-dhcp-renew-rfc3442
new file mode 100644
index 000000000..9202fe72d
--- /dev/null
+++ b/src/etc/dhcp/dhclient-exit-hooks.d/02-vyos-dhcp-renew-rfc3442
@@ -0,0 +1,148 @@
+# support for RFC3442 routes in DHCP RENEW
+
+function convert_to_cidr () {
+ cidr=""
+ set -- $1
+ while [ $# -gt 0 ]; do
+ net_length=$1
+
+ case $net_length in
+ 32|31|30|29|28|27|26|25)
+ if [ $# -lt 9 ]; then
+ return 1
+ fi
+ net_address="${2}.${3}.${4}.${5}"
+ gateway="${6}.${7}.${8}.${9}"
+ shift 9
+ ;;
+ 24|23|22|21|20|19|18|17)
+ if [ $# -lt 8 ]; then
+ return 1
+ fi
+ net_address="${2}.${3}.${4}.0"
+ gateway="${5}.${6}.${7}.${8}"
+ shift 8
+ ;;
+ 16|15|14|13|12|11|10|9)
+ if [ $# -lt 7 ]; then
+ return 1
+ fi
+ net_address="${2}.${3}.0.0"
+ gateway="${4}.${5}.${6}.${7}"
+ shift 7
+ ;;
+ 8|7|6|5|4|3|2|1)
+ if [ $# -lt 6 ]; then
+ return 1
+ fi
+ net_address="${2}.0.0.0"
+ gateway="${3}.${4}.${5}.${6}"
+ shift 6
+ ;;
+ 0) # default route
+ if [ $# -lt 5 ]; then
+ return 1
+ fi
+ net_address="0.0.0.0"
+ gateway="${2}.${3}.${4}.${5}"
+ shift 5
+ ;;
+ *) # error
+ return 1
+ ;;
+ esac
+
+ cidr+="${net_address}/${net_length}:${gateway} "
+ done
+}
+
+# main script starts here
+
+RUN="yes"
+
+if [ "$RUN" = "yes" ]; then
+ convert_to_cidr "$old_rfc3442_classless_static_routes"
+ old_cidr=$cidr
+ convert_to_cidr "$new_rfc3442_classless_static_routes"
+ new_cidr=$cidr
+
+ if [ "$reason" = "RENEW" ]; then
+ if [ "$new_rfc3442_classless_static_routes" != "$old_rfc3442_classless_static_routes" ]; then
+ logmsg info "RFC3442 route change detected, old_routes: $old_rfc3442_classless_static_routes"
+ logmsg info "RFC3442 route change detected, new_routes: $new_rfc3442_classless_static_routes"
+ if [ -z "$new_rfc3442_classless_static_routes" ]; then
+ # delete all routes from the old_rfc3442_classless_static_routes
+ for route in $old_cidr; do
+ network=$(printf "${route}" | awk -F ":" '{print $1}')
+ gateway=$(printf "${route}" | awk -F ":" '{print $2}')
+ # take care of link-local routes
+ if [ "${gateway}" != '0.0.0.0' ]; then
+ via_arg="via ${gateway}"
+ else
+ via_arg=""
+ fi
+ ip -4 route del "${network}" "${via_arg}" dev "${interface}" >/dev/null 2>&1
+ done
+ elif [ -z "$old_rfc3442_classless_static_routes" ]; then
+ # add all routes from the new_rfc3442_classless_static_routes
+ for route in $new_cidr; do
+ network=$(printf "${route}" | awk -F ":" '{print $1}')
+ gateway=$(printf "${route}" | awk -F ":" '{print $2}')
+ # take care of link-local routes
+ if [ "${gateway}" != '0.0.0.0' ]; then
+ via_arg="via ${gateway}"
+ else
+ via_arg=""
+ fi
+ ip -4 route add "${network}" "${via_arg}" dev "${interface}" >/dev/null 2>&1
+ done
+ else
+ # update routes
+ # delete old
+ for old_route in $old_cidr; do
+ match="false"
+ for new_route in $new_cidr; do
+ if [[ "$old_route" == "$new_route" ]]; then
+ match="true"
+ break
+ fi
+ done
+ if [[ "$match" == "false" ]]; then
+ # delete old_route
+ network=$(printf "${old_route}" | awk -F ":" '{print $1}')
+ gateway=$(printf "${old_route}" | awk -F ":" '{print $2}')
+ # take care of link-local routes
+ if [ "${gateway}" != '0.0.0.0' ]; then
+ via_arg="via ${gateway}"
+ else
+ via_arg=""
+ fi
+ ip -4 route del "${network}" "${via_arg}" dev "${interface}" >/dev/null 2>&1
+ fi
+ done
+ # add new
+ for new_route in $new_cidr; do
+ match="false"
+ for old_route in $old_cidr; do
+ if [[ "$new_route" == "$old_route" ]]; then
+ match="true"
+ break
+ fi
+ done
+ if [[ "$match" == "false" ]]; then
+ # add new_route
+ network=$(printf "${new_route}" | awk -F ":" '{print $1}')
+ gateway=$(printf "${new_route}" | awk -F ":" '{print $2}')
+ # take care of link-local routes
+ if [ "${gateway}" != '0.0.0.0' ]; then
+ via_arg="via ${gateway}"
+ else
+ via_arg=""
+ fi
+ ip -4 route add "${network}" "${via_arg}" dev "${interface}" >/dev/null 2>&1
+ fi
+ done
+ fi
+ fi
+ fi
+fi
diff --git a/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook b/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook
new file mode 100644
index 000000000..eeb8b0782
--- /dev/null
+++ b/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+# Author: Stig Thormodsrud <stig@vyatta.com>
+# Date: 2007
+# Description: dhcp client hook
+
+# **** License ****
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# This code was originally developed by Vyatta, Inc.
+# Portions created by Vyatta are Copyright (C) 2006, 2007, 2008 Vyatta, Inc.
+# All Rights Reserved.
+# **** End License ****
+
+# To enable this script set the following variable to "yes"
+RUN="yes"
+
+proto=""
+if [[ $reason =~ (REBOOT6|INIT6|EXPIRE6|RELEASE6|STOP6|INFORM6|BOUND6|REBIND6|DELEGATED6) ]]; then
+ proto="v6"
+fi
+
+if [ "$RUN" = "yes" ]; then
+ LOG=/var/lib/dhcp/dhclient_"$interface"."$proto"lease
+ echo `date` > $LOG
+
+ for i in reason interface new_expiry new_dhcp_lease_time medium \
+ alias_ip_address new_ip_address new_broadcast_address \
+ new_subnet_mask new_domain_name new_network_number \
+ new_domain_name_servers new_routers new_static_routes \
+ new_dhcp_server_identifier new_dhcp_message_type \
+ old_ip_address old_subnet_mask old_domain_name \
+ old_domain_name_servers old_routers \
+ old_static_routes; do
+ echo $i=\'${!i}\' >> $LOG
+ done
+fi
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