diff options
Diffstat (limited to 'dhcpcd/dhcpcd-hooks/50-ntp.conf')
-rw-r--r-- | dhcpcd/dhcpcd-hooks/50-ntp.conf | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/dhcpcd/dhcpcd-hooks/50-ntp.conf b/dhcpcd/dhcpcd-hooks/50-ntp.conf new file mode 100644 index 00000000..c0781360 --- /dev/null +++ b/dhcpcd/dhcpcd-hooks/50-ntp.conf @@ -0,0 +1,109 @@ +# Sample dhcpcd hook script for ntp +# Like our resolv.conf hook script, we store a database of ntp.conf files +# and merge into /etc/ntp.conf + +# You can set the env var NTP_CONF to another file like this +# dhcpcd -e NTP_CONF=/usr/pkg/etc/ntpd.conf +# or by adding this to /etc/dhcpcd.enter-hook +# NTP_CONF=/usr/pkg/etc/ntpd.conf +# to use openntpd from pkgsrc instead of the system provided ntp. + +if type invoke-rc.d >/dev/null 2>&1; then + # Debian has a seperate file for DHCP config to avoid stamping on + # the master. + [ -e /var/lib/ntp ] || mkdir /var/lib/ntp + : ${ntp_service:=ntp} + : ${NTP_DHCP_CONF:=/var/lib/ntp/ntp.conf.dhcp} +fi + +: ${ntp_service:=ntpd} +: ${ntp_restart_cmd:=service_condcommand $ntp_service restart} +ntp_conf_dir="$state_dir/ntp.conf" +ntp_conf=${NTP_CONF:-/etc/ntp.conf} +NL=" +" + +build_ntp_conf() +{ + local cf="$state_dir/ntp.conf.$ifname" + local interfaces= header= srvs= servers= x= + + # Build a list of interfaces + interfaces=$(list_interfaces "$ntp_conf_dir") + + if [ -n "$interfaces" ]; then + # Build the header + for x in ${interfaces}; do + header="$header${header:+, }$x" + done + + # Build a server list + srvs=$(cd "$ntp_conf_dir"; + key_get_value "server " $interfaces) + if [ -n "$srvs" ]; then + for x in $(uniqify $srvs); do + servers="${servers}server $x$NL" + done + fi + fi + + # Merge our config into ntp.conf + [ -e "$cf" ] && rm -f "$cf" + [ -d "$ntp_conf_dir" ] || mkdir -p "$ntp_conf_dir" + + if [ -n "$NTP_DHCP_CONF" ]; then + [ -e "$ntp_conf" ] && cp "$ntp_conf" "$cf" + ntp_conf="$NTP_DHCP_CONF" + elif [ -e "$ntp_conf" ]; then + remove_markers "$signature_base" "$signature_base_end" \ + "$ntp_conf" > "$cf" + fi + + if [ -n "$servers" ]; then + echo "$signature_base${header:+ $from }$header" >> "$cf" + printf %s "$servers" >> "$cf" + echo "$signature_base_end${header:+ $from }$header" >> "$cf" + else + [ -e "$ntp_conf" -a -e "$cf" ] || return + fi + + # If we changed anything, restart ntpd + if change_file "$ntp_conf" "$cf"; then + [ -n "$ntp_restart_cmd" ] && eval $ntp_restart_cmd + fi +} + +add_ntp_conf() +{ + local cf="$ntp_conf_dir/$ifname" x= + + [ -e "$cf" ] && rm "$cf" + [ -d "$ntp_conf_dir" ] || mkdir -p "$ntp_conf_dir" + if [ -n "$new_ntp_servers" ]; then + for x in $new_ntp_servers; do + echo "server $x" >> "$cf" + done + fi + build_ntp_conf +} + +remove_ntp_conf() +{ + if [ -e "$ntp_conf_dir/$ifname" ]; then + rm "$ntp_conf_dir/$ifname" + fi + build_ntp_conf +} + +# For ease of use, map DHCP6 names onto our DHCP4 names +case "$reason" in +BOUND6|RENEW6|REBIND6|REBOOT6|INFORM6) + new_ntp_servers="$new_dhcp6_sntp_servers" +;; +esac + +if $if_up; then + add_ntp_conf add +elif $if_down; then + remove_ntp_conf del +fi |