package/utils/busybox/files/sysntpd

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2011 OpenWrt.org
   3
   4 START=98
   5
   6 USE_PROCD=1
   7 PROG=/usr/sbin/ntpd
   8 HOTPLUG_SCRIPT=/usr/sbin/ntpd-hotplug
   9
  10 get_dhcp_ntp_servers() {
  11         local interfaces="$1"
  12         local filter="*"
  13         local interface ntpservers ntpserver
  14
  15         for interface in $interfaces; do
  16                 [ "$filter" = "*" ] && filter="@.interface='$interface'" || filter="$filter,@.interface='$interface'"
  17         done
  18
  19         ntpservers=$(ubus call network.interface dump | jsonfilter -e "@.interface[$filter]['data']['ntpserver']")
  20
  21         for ntpserver in $ntpservers; do
  22                 local duplicate=0
  23                 local entry
  24                 for entry in $server; do
  25                         [ "$ntpserver" = "$entry" ] && duplicate=1
  26                 done
  27                 [ "$duplicate" = 0 ] && server="$server $ntpserver"
  28         done
  29 }
  30
  31 validate_ntp_section() {
  32         uci_load_validate system timeserver "$1" "$2" \
  33                 'dhcp_interface:list(string)' \
  34                 'enable_server:bool:0' \
  35                 'enabled:bool:1' \
  36                 'interface:string' \
  37                 'server:list(host)' \
  38                 'use_dhcp:bool:1'
  39 }
  40
  41 start_ntpd_instance() {
  42         local peer
  43
  44         [ "$2" = 0 ] || {
  45                 echo "validation failed"
  46                 return 1
  47         }
  48
  49         [ $enabled = 0 ] && return
  50
  51         [ $use_dhcp = 1 ] && get_dhcp_ntp_servers "$dhcp_interface"
  52
  53         [ -z "$server" -a "$enable_server" = "0" ] && return
  54
  55         procd_open_instance
  56         procd_set_param command "$PROG" -n -N
  57         if [ "$enable_server" = "1" ]; then
  58                 procd_append_param command -l
  59                 [ -n "$interface" ] && {
  60                         local ifname
  61
  62                         network_get_device ifname "$interface" || \
  63                                 ifname="$interface"
  64                         procd_append_param command -I "$ifname"
  65                         procd_append_param netdev "$ifname"
  66                 }
  67         fi
  68         [ -x "$HOTPLUG_SCRIPT" ] && procd_append_param command -S "$HOTPLUG_SCRIPT"
  69         for peer in $server; do
  70                 procd_append_param command -p $peer
  71         done
  72         procd_set_param respawn
  73         [ -x /sbin/ujail -a -e /etc/capabilities/ntpd.json ] && {
  74                 procd_add_jail ntpd ubus
  75                 procd_add_jail_mount "$HOTPLUG_SCRIPT"
  76                 procd_add_jail_mount "/usr/share/libubox/jshn.sh"
  77                 procd_add_jail_mount "/usr/bin/env"
  78                 procd_add_jail_mount "/usr/bin/jshn"
  79                 procd_add_jail_mount "/bin/ubus"
  80                 procd_set_param capabilities /etc/capabilities/ntpd.json
  81                 procd_set_param user ntp
  82                 procd_set_param group ntp
  83                 procd_set_param no_new_privs 1
  84         }
  85         procd_close_instance
  86 }
  87
  88 start_service() {
  89         . /lib/functions/network.sh
  90         validate_ntp_section ntp start_ntpd_instance
  91 }
  92
  93 service_triggers() {
  94         local script name use_dhcp enable_server interface
  95
  96         script=$(readlink -f "$initscript")
  97         name=$(basename ${script:-$initscript})
  98
  99         procd_add_config_trigger "config.change" "system" /etc/init.d/$name reload
 100
 101         config_load system
 102         config_get use_dhcp ntp use_dhcp 1
 103
 104         [ $use_dhcp = 1 ] && {
 105                 local dhcp_interface
 106                 config_get dhcp_interface ntp dhcp_interface
 107
 108                 if [ -n "$dhcp_interface" ]; then
 109                         for n in $dhcp_interface; do
 110                                 procd_add_interface_trigger "interface.*" $n /etc/init.d/$name reload
 111                         done
 112                 else
 113                         procd_add_raw_trigger "interface.*" 1000 /etc/init.d/$name reload
 114                 fi
 115         }
 116
 117         config_get_bool enable_server ntp enable_server 0
 118         config_get interface ntp interface
 119
 120         [ $enable_server -eq 1 ] && [ -n "$interface" ] && {
 121                 local ifname
 122
 123                 network_get_device ifname "$interface" || \
 124                         ifname="$interface"
 125                 procd_add_interface_trigger "interface.*" "$ifname" \
 126                         /etc/init.d/"$name" reload
 127         }
 128
 129         procd_add_validation validate_ntp_section
 130 }