69 lines
1.5 KiB
Plaintext
69 lines
1.5 KiB
Plaintext
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#!/bin/bash
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config=/etc/chrony.conf
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keyfile=/etc/chrony.keys
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chronyc=/usr/bin/chronyc
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dhclient_servers=/var/lib/dhclient/chrony.servers.*
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service_name=chronyd.service
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get_key() {
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awk '/^[ \t]*'$1'\>/ { print $2; exit }' < $keyfile
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}
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get_commandkeyid() {
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awk '/^[ \t]*commandkey\>/ { keyid=$2 } END { print keyid }' < $config
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}
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chrony_command() {
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commandkeyid=$(get_commandkeyid)
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[ -z "$commandkeyid" ] && return 1
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commandkey=$(get_key $commandkeyid)
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[ -z "$commandkey" ] && return 2
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$chronyc <<EOF
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password $commandkey
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$1
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EOF
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}
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generate_commandkey() {
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commandkeyid=$(get_commandkeyid)
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[ -z "$commandkeyid" ] && return 1
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commandkey=$(get_key $commandkeyid)
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[ -z "$commandkey" ] || return 0
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commandkey=$(tr -c -d '[\041-\176]' < /dev/urandom | head -c 8)
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[ -n "$commandkey" ] && echo "$commandkeyid $commandkey" >> $keyfile
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}
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add_dhclient_servers() {
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command=$(cat $dhclient_servers 2> /dev/null |
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while read server serverargs; do
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echo "add server $server $serverargs"
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done)
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if [ -n "$command" ]; then
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chrony_command "$command" &> /dev/null
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fi
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}
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is_running() {
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systemctl status chronyd.service &> /dev/null
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}
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case "$1" in
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generate-commandkey)
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generate_commandkey
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;;
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add-dhclient-servers)
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add_dhclient_servers
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;;
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command)
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is_running && chrony_command "$2"
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;;
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*)
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echo $"Usage: $0 {generate-commandkey|add-dhclient-servers|command}"
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exit 2
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esac
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exit $?
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