net/nbd/files/nbd-client.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2015 OpenWrt.org
   3
   4 START=90
   5 STOP=10
   6 USE_PROCD=1
   7
   8 append_arg() {
   9         local cfg="$1"
  10         local var="$2"
  11         local opt="$3"
  12         local def="$4"
  13         local val
  14
  15         config_get val "$cfg" "$var"
  16         [ -n "$val" -o -n "$def" ] && procd_append_param command $opt "${val:-$def}"
  17 }
  18
  19 append_bool() {
  20         local cfg="$1"
  21         local var="$2"
  22         local opt="$3"
  23         local def="$4"
  24         local val
  25
  26         config_get_bool val "$cfg" "$var" "$def"
  27         [ "$val" = 1 ] && procd_append_param command "$opt"
  28 }
  29
  30 start_instance() {
  31         local cfg="$1"
  32         local enabled
  33
  34         config_get_bool enabled "$cfg" 'enabled' '0'
  35         [ "$enabled" = 0 ] && return 1
  36
  37         procd_open_instance
  38
  39         procd_set_param command /usr/sbin/nbd-client
  40
  41         append_arg "$cfg" server
  42         append_arg "$cfg" port
  43         # device path
  44         procd_append_param command "/dev/$cfg"
  45         procd_append_param command -nofork
  46         append_bool "$cfg" sdp "-sdp"
  47         append_bool "$cfg" swap "-swap"
  48         append_bool "$cfg" persist "-persist"
  49         append_arg "$cfg" blocksize "-block-size"
  50         append_arg "$cfg" timeout "-timeout"
  51         append_arg "$cfg" exportname "-name"
  52
  53         procd_close_instance
  54 }
  55
  56 service_triggers() {
  57         procd_add_reload_trigger "nbd-client"
  58 }
  59
  60 start_service() {
  61         config_load nbd-client
  62         config_foreach start_instance nbd-client
  63 }
  64
  65 stop_service() {
  66         for dev in /dev/nbd*; do
  67                 nbd-client -d $dev 1>/dev/null 2>&1
  68         done
  69 }