| # 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 instead of the default 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" |
| |
| # If we have installed OpenNTPD but not NTP then prefer it |
| # XXX If both exist then update both? |
| if [ -z "$NTP_CONF" -a -e /etc/ntpd.conf -a ! -e /etc/ntp.conf ]; then |
| : ${NTP_CONF:=/etc/ntpd.conf} |
| else |
| : ${NTP_CONF:=/etc/ntp.conf} |
| fi |
| |
| ntp_conf=${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 |
| elif $if_down; then |
| remove_ntp_conf |
| fi |