6707d9750a
The busybox ntpd utility currently uses ntp servers specified in uci.
This patch allows the ntpd utility to use NTP servers received via DHCP(v6)
Following uci parameters have been added:
use_dhcp : enables NTP server config via DHCP(v6)
dhcp_interface : use NTP servers received only on the specified DHCP(v6) interfaces; if empty all interfaces are considered
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
90 lines
2.1 KiB
Bash
Executable File
90 lines
2.1 KiB
Bash
Executable File
#!/bin/sh /etc/rc.common
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# Copyright (C) 2011 OpenWrt.org
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START=98
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USE_PROCD=1
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PROG=/usr/sbin/ntpd
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HOTPLUG_SCRIPT=/usr/sbin/ntpd-hotplug
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get_dhcp_ntp_servers() {
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local interfaces="$1"
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local filter="*"
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local interface ntpservers ntpserver
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for interface in $interfaces; do
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[ "$filter" = "*" ] && filter="@.interface='$interface'" || filter="$filter,@.interface='$interface'"
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done
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ntpservers=$(ubus call network.interface dump | jsonfilter -e "@.interface[$filter]['data']['ntpserver']")
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for ntpserver in $ntpservers; do
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local duplicate=0
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local entry
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for entry in $server; do
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[ "$ntpserver" = "$entry" ] && duplicate=1
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done
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[ "$duplicate" = 0 ] && server="$server $ntpserver"
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done
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}
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validate_ntp_section() {
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uci_validate_section system timeserver "${1}" \
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'server:list(host)' 'enabled:bool:1' 'enable_server:bool:0' 'use_dhcp:bool:1' 'dhcp_interface:list(string)'
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}
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start_service() {
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local server enabled enable_server use_dhcp dhcp_interface peer
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validate_ntp_section ntp || {
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echo "validation failed"
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return 1
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}
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[ $enabled = 0 ] && return
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[ $use_dhcp = 1 ] && get_dhcp_ntp_servers "$dhcp_interface"
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[ -z "$server" ] && return
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procd_open_instance
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procd_set_param command "$PROG" -n
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[ "$enable_server" = "1" ] && procd_append_param command -l
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[ -x "$HOTPLUG_SCRIPT" ] && procd_append_param command -S "$HOTPLUG_SCRIPT"
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for peer in $server; do
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procd_append_param command -p $peer
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done
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procd_set_param respawn
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procd_close_instance
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}
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service_triggers() {
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local script name use_dhcp
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script=$(readlink -f "$initscript")
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name=$(basename ${script:-$initscript})
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procd_open_trigger
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procd_add_config_trigger "config.change" "system" /etc/init.d/$name reload
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config_load system
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config_get use_dhcp ntp use_dhcp 1
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[ $use_dhcp = 1 ] && {
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local dhcp_interface
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config_get dhcp_interface ntp dhcp_interface
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if [ -n "$dhcp_interface" ]; then
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for n in $dhcp_interface; do
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procd_add_interface_trigger "interface.*" $n /etc/init.d/$name reload
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done
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else
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procd_add_raw_trigger "interface.*" 1000 /etc/init.d/$name reload
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fi
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}
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procd_close_trigger
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procd_add_validation validate_ntp_section
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}
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