net/nut/files/nut-server.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright © 2012 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7 START=70
   8 STOP=30
   9
  10 USERS_C=/var/etc/nut/upsd.users
  11 UPSD_C=/var/etc/nut/upsd.conf
  12 UPS_C=/var/etc/nut/ups.conf
  13
  14 USE_PROCD=1
  15
  16 get_write_driver_config() {
  17         local cfg="$1"
  18         local var="$2"
  19         local def="$3"
  20         local flag="$4"
  21         local val
  22
  23         [ -z "$flag" ] && {
  24                 config_get val "$cfg" "$var" "$def"
  25                 [ -n "$val" ] && [ "$val" != "0" ] && echo "$var = $val" >>"$UPS_C"
  26         }
  27
  28         [ -n "$flag" ] && {
  29                 config_get_bool val "$cfg" "$var" "$def"
  30                 [ "$val" = 1 ] && echo "$var" >>"$UPS_C"
  31         }
  32 }
  33
  34 upsd_statepath() {
  35         local statepath
  36
  37         config_get statepath upsd statepath /var/run/nut
  38         STATEPATH="$statepath"
  39 }
  40
  41 upsd_runas() {
  42         local runas
  43
  44         [ -n "$RUNAS" ] && return 0
  45
  46         config_get runas upsd runas nut
  47         RUNAS="$runas"
  48 }
  49
  50 listen_address() {
  51     local cfg="$1"
  52
  53     config_get address "$cfg" address "::1"
  54     config_get port "$cfg" port
  55     echo "LISTEN $address $port" >>"$UPSD_C"
  56 }
  57
  58 upsd_config() {
  59     local cfg="$1"
  60     local maxage maxconn certfile runas statepath
  61
  62     # Note runas support requires you make sure USB device file is readable by
  63     # the runas user
  64     config_get runas "$cfg" runas nut
  65     RUNAS="$runas"
  66
  67     config_get statepath "$cfg" statepath /var/run/nut
  68     STATEPATH="$statepath"
  69
  70     config_get maxage "$cfg" maxage
  71     [ -n "$maxage" ] && echo "MAXAGE $maxage" >>"$UPSD_C"
  72
  73     [ -n "$statepath" ] && echo "STATEPATH $statepath" >>"$UPSD_C"
  74
  75     config_get maxconn "$cfg" maxconn
  76     [ -n "$maxconn" ] && echo "MAXCONN $maxconn" >>"$UPSD_C"
  77
  78     #NOTE: certs only apply to SSL-enabled version
  79     config_get certfile "$cfg" certfile
  80     [ -n "$certfile" ] && echo "CERTFILE $certfile" >>"$UPSD_C"
  81 }
  82
  83 nut_user_add() {
  84         local cfg="$1"
  85         local a
  86         local val
  87
  88         config_get val "$cfg" username "$1"
  89         echo "[$val]" >> "$USERS_C"
  90
  91         config_get val "$cfg" password
  92         echo "  password = $val" >> "$USERS_C"
  93
  94         config_get val "$cfg" actions
  95         for a in $val; do
  96             echo "  actions = $a" >> "$USERS_C"
  97         done
  98
  99         instcmd() {
 100                 local val="$1"
 101                 echo "  instcmds = $val" >> "$USERS_C"
 102         }
 103
 104         config_list_foreach "$cfg" instcmd instcmd
 105
 106         config_get val "$cfg" upsmon
 107         if [ -n "$val" ]; then
 108             echo "  upsmon $val" >> "$USERS_C"
 109         fi
 110 }
 111
 112 build_server_config() {
 113         mkdir -p "$(dirname "$UPSD_C")"
 114         chmod 0640 "$UPS_C"
 115         rm -f "$USERS_C"
 116         rm -f "$UPSD_C"
 117         rm -f /var/etc/nut/nut.conf
 118
 119         echo "# Config file automatically generated from UCI config" > "$USERS_C"
 120         echo "# Config file automatically generated from UCI config" > "$UPSD_C"
 121
 122         config_foreach nut_user_add user
 123         config_foreach listen_address listen_address
 124         config_foreach upsd_config upsd
 125         echo "MODE=netserver" >>/var/etc/nut/nut.conf
 126
 127         chmod 0640 "$USERS_C"
 128         chmod 0640 "$UPSD_C"
 129         chmod 0644 /var/etc/nut/nut.conf
 130
 131         [ -d "${STATEPATH}" ] || {
 132                 mkdir -p "${STATEPATH}"
 133                 chmod 0750 "${STATEPATH}"
 134         }
 135
 136         if [ -n "$RUNAS" ]; then
 137                 chown "$RUNAS":"$(id -gn "$RUNAS")" "${STATEPATH}"
 138                 chgrp "$(id -gn "$RUNAS")" "$USERS_C"
 139                 chgrp "$(id -gn "$RUNAS")" "$UPSD_C"
 140         fi
 141         haveserver=1
 142 }
 143
 144 build_driver_config() {
 145         local cfg="$1"
 146
 147         echo "[$cfg]" >>"$UPS_C"
 148
 149         get_write_driver_config "$cfg" bus
 150         get_write_driver_config "$cfg" community
 151         get_write_driver_config "$cfg" desc
 152         get_write_driver_config "$cfg" driver "usbhid-ups"
 153         get_write_driver_config "$cfg" ignorelb 0 1
 154         get_write_driver_config "$cfg" interruptonly 0 1
 155         get_write_driver_config "$cfg" interruptsize
 156         get_write_driver_config "$cfg" maxreport
 157         get_write_driver_config "$cfg" maxstartdelay
 158         get_write_driver_config "$cfg" mfr
 159         get_write_driver_config "$cfg" model
 160         get_write_driver_config "$cfg" nolock 0 1
 161         get_write_driver_config "$cfg" notransferoids 0 1
 162         get_write_driver_config "$cfg" offdelay
 163         get_write_driver_config "$cfg" ondelay
 164         get_write_driver_config "$cfg" pollfreq
 165         get_write_driver_config "$cfg" port "auto"
 166         get_write_driver_config "$cfg" product
 167         get_write_driver_config "$cfg" productid
 168         get_write_driver_config "$cfg" retrydelay
 169         get_write_driver_config "$cfg" sdorder
 170         get_write_driver_config "$cfg" sdtime
 171         get_write_driver_config "$cfg" serial
 172         get_write_driver_config "$cfg" snmp_version
 173         get_write_driver_config "$cfg" snmp_retries
 174         get_write_driver_config "$cfg" snmp_timeout
 175         get_write_driver_config "$cfg" synchronous
 176         get_write_driver_config "$cfg" vendor
 177         get_write_driver_config "$cfg" vendorid
 178
 179         defoverride() {
 180                 local overvar="$1"
 181                 local defover="$2"
 182                 local overtype="$(echo "$overvar" | tr '.' '_')"
 183                 local overval
 184
 185                 config_get overval "${defover}_${overtype}" value
 186                 [ -n "$overval" ] && echo "${defover}.${overvar} = $overval" >>"$UPS_C"
 187         }
 188
 189         config_list_foreach "$cfg" override defoverride override
 190         config_list_foreach "$cfg" default defoverride default
 191
 192         other() {
 193                 local othervar="$1"
 194                 local othervarflag="$2"
 195                 local otherval
 196
 197                 if [ "$othervarflag" = "otherflag" ]; then
 198                         config_get_bool otherval "${othervarflag}_${othervar}" value
 199                         [ "$otherval" = "1" ] && echo "${othervar}" >>"$UPS_C"
 200                 else
 201                         config_get otherval "${othervarflag}_${othervar}" value
 202                         [ -n "$otherval" ] && echo "${othervar} = $otherval" >>"$UPS_C"
 203                 fi
 204         }
 205
 206         config_list_foreach "$cfg" other other other
 207         config_list_foreach "$cfg" otherflag other otherflag
 208         echo "" >>$UPS_C
 209         havedriver=1
 210 }
 211
 212 build_global_driver_config() {
 213         local cfg="$1"
 214
 215         # Global driver config
 216         get_write_driver_config "$cfg" chroot
 217         get_write_driver_config "$cfg" driverpath
 218         get_write_driver_config "$cfg" maxstartdelay
 219         get_write_driver_config "$cfg" maxretry
 220         get_write_driver_config "$cfg" retrydelay
 221         get_write_driver_config "$cfg" pollinterval
 222         get_write_driver_config "$cfg" synchronous
 223         config_get runas "$cfg" user nut
 224         RUNAS="$runas"
 225
 226         echo "" >>"$UPS_C"
 227 }
 228
 229 build_config() {
 230         local STATEPATH=/var/run/nut
 231
 232         mkdir -p "$(dirname "$UPS_C")"
 233         rm -f "$UPS_C"
 234         echo "# Config file automatically generated from UCI config" > "$UPS_C"
 235         chmod 0640 "$UPS_C"
 236
 237         config_load nut_server
 238
 239         upsd_runas
 240         config_foreach build_global_driver_config driver_global
 241         config_foreach build_driver_config driver
 242         upsd_statepath
 243         build_server_config
 244         [ -n "$RUNAS" ] && chgrp "$(id -gn "$RUNAS")" "$UPS_C"
 245 }
 246
 247 start_driver_instance() {
 248         local cfg="$1"
 249         local requested="$2"
 250         local driver
 251         local STATEPATH=/var/run/nut
 252         local RUNAS=nut
 253
 254         [ "$havedriver" != 1 ] && return
 255
 256         # If wanting a specific instance, only start it
 257         if [ "$requested" != "$cfg" ] && [ "$request" != "" ]; then
 258                 return 0
 259         fi
 260
 261         mkdir -p "$(dirname "$UPS_C")"
 262         chmod 0755 "$UPS_C"
 263
 264         upsd_statepath
 265         build_config
 266
 267         # Avoid hotplug inadvertenly restarting driver during
 268         # forced shutdown
 269         [ -f /var/run/killpower ] && return 0
 270         if [ -d /var/run/nut ] && [ -f /var/run/nut/disable-hotplug ]; then
 271                return 0
 272         fi
 273
 274         if [ -n "$RUNAS" ]; then
 275                 chown "$RUNAS":"$(id -gn "$RUNAS")" "${STATEPATH}"
 276                 chgrp "$(id -gn "$RUNAS")" "$UPS_C"
 277         fi
 278
 279         config_get driver "$cfg" driver "usbhid-ups"
 280         procd_open_instance "$cfg"
 281         procd_set_param respawn
 282         procd_set_param stderr 0
 283         procd_set_param stdout 1
 284         procd_set_param command /lib/nut/"${driver}" -D -a "$cfg" ${RUNAS:+-u "$RUNAS"}
 285         procd_close_instance
 286 }
 287
 288 interface_triggers() {
 289         local action="$1"
 290         local triggerlist trigger
 291
 292         config_get triggerlist upsd triggerlist
 293
 294         . /lib/functions/network.sh
 295
 296         if [ -n "$triggerlist" ]; then
 297                 for trigger in $triggerlist; do
 298                         if [ "$action" = "add_trigger" ]; then
 299                                 procd_add_interface_trigger "interface.*" "$trigger" /etc/init.d/nut-server reload
 300                         else
 301                                 network_is_up "$trigger" && return 0
 302                         fi
 303                 done
 304         else
 305                 if [ "$action" = "add_trigger" ]; then
 306                         procd_add_raw_trigger "interface.*.up" 2000 /etc/init.d/nut-server reload
 307                 else
 308                         ubus call network.device status | grep -q '"up": true' && return 0
 309                 fi
 310         fi
 311         [ "$action" = "add_trigger" ] || return 1
 312 }
 313
 314 start_server_instance() {
 315         local cfg="$1"
 316
 317         [ "$haveserver" != 1 ] && return
 318         interface_triggers "check_interface_up" || return
 319
 320         procd_open_instance "$cfg"
 321         procd_set_param respawn
 322         procd_set_param stderr 0
 323         procd_set_param stdout 1
 324         procd_set_param command /usr/sbin/upsd -D ${RUNAS:+-u "$RUNAS"}
 325         procd_close_instance
 326 }
 327
 328 start_service() {
 329         local STATEPATH=/var/run/nut
 330
 331         # Avoid hotplug inadvertenly restarting driver during
 332         # forced shutdown
 333         [ -f /var/run/killpower ] && return 0
 334
 335         config_load nut_server
 336         build_config
 337
 338         case $@ in
 339         "")
 340                 config_foreach start_driver_instance driver "$@"
 341                 start_server_instance upsd
 342                 ;;
 343         *upsd*)
 344                 start_server_instance upsd
 345                 ;;
 346         *)
 347                 config_foreach start_driver_instance driver "$@"
 348                 ;;
 349         esac
 350 }
 351
 352 reload_service() {
 353         stop_service "$@"
 354         sleep 2
 355         start_service "$@"
 356 }
 357
 358 service_triggers() {
 359         config_load nut_server
 360
 361         interface_triggers "add_trigger"
 362         procd_add_reload_trigger "nut_server"
 363 }