package/network/services/lldpd/files/lldpd.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2008-2015 OpenWrt.org
   3
   4 START=90
   5 STOP=01
   6
   7 USE_PROCD=1
   8 LLDPCLI=/usr/sbin/lldpcli
   9 LLDPSOCKET=/var/run/lldpd.socket
  10 LLDPD_CONF=/tmp/lldpd.conf
  11 LLDPD_CONFS_DIR=/tmp/lldpd.d
  12
  13 find_release_info()
  14 {
  15         [ -s /etc/os-release ] && . /etc/os-release
  16         [ -z "$PRETTY_NAME" ] && [ -s /etc/openwrt_version ] && \
  17                 PRETTY_NAME="$(cat /etc/openwrt_version)"
  18
  19         echo "${PRETTY_NAME:-Unknown Lede release} @ $(cat /proc/sys/kernel/hostname)"
  20 }
  21
  22 write_lldpd_conf()
  23 {
  24         . /lib/functions/network.sh
  25
  26         local lldp_description
  27
  28         config_load 'lldpd'
  29         config_get lldp_description 'config' 'lldp_description' "$(find_release_info)"
  30
  31         local ifaces
  32         config_get ifaces 'config' 'interface'
  33
  34         local iface ifnames=""
  35         for iface in $ifaces; do
  36                 local ifname=""
  37                 if network_get_device ifname "$iface" || [ -e "/sys/class/net/$iface" ]; then
  38                         append ifnames "${ifname:-$iface}" ","
  39                 fi
  40         done
  41
  42         # Clear out the config file first
  43         echo -n > "$LLDPD_CONF"
  44         [ -n "$ifnames" ] && echo "configure system interface pattern" "$ifnames" >> "$LLDPD_CONF"
  45         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
  46
  47         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
  48         [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR
  49 }
  50
  51 start_service() {
  52
  53         local enable_cdp
  54         local enable_fdp
  55         local enable_sonmp
  56         local enable_edp
  57         local lldp_class
  58         local lldp_location
  59         local readonly_mode
  60
  61         config_load 'lldpd'
  62         config_get_bool enable_cdp 'config' 'enable_cdp' 0
  63         config_get_bool enable_fdp 'config' 'enable_fdp' 0
  64         config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
  65         config_get_bool enable_edp 'config' 'enable_edp' 0
  66         config_get lldp_class 'config' 'lldp_class'
  67         config_get lldp_location 'config' 'lldp_location'
  68         config_get_bool readonly_mode 'config' 'readonly_mode' 0
  69
  70         mkdir -p /var/run/lldp
  71         chown lldp:lldp /var/run/lldp
  72
  73         # When lldpd starts, it also loads up what we write in this config file
  74         write_lldpd_conf
  75
  76         procd_open_instance
  77         procd_set_param command /usr/sbin/lldpd
  78         procd_append_param command -d # don't daemonize, procd will handle that for us
  79
  80         [ $enable_cdp -gt 0 ] && procd_append_param command '-c'
  81         [ $enable_fdp -gt 0 ] && procd_append_param command '-f'
  82         [ $enable_sonmp -gt 0 ] && procd_append_param command '-s'
  83         [ $enable_edp -gt 0 ] && procd_append_param command '-e'
  84         [ $readonly_mode -gt 0 ] && procd_append_param command '-r'
  85         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
  86
  87         # set auto respawn behavior
  88         procd_set_param respawn
  89         procd_append_param respawn 3600
  90         procd_append_param respawn 5
  91         procd_append_param respawn -1
  92         procd_close_instance
  93 }
  94
  95 service_running() {
  96         pgrep -x /usr/sbin/lldpd &> /dev/null
  97 }
  98
  99 reload_service() {
 100         running || return 1
 101         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 102                 pause
 103                 unconfigure lldp custom-tlv
 104                 unconfigure system interface pattern
 105                 unconfigure system description
 106         EOF
 107         # Rewrite lldpd.conf
 108         # If something changed it should be included by the lldpcli call
 109         write_lldpd_conf
 110         $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null
 111         # Broadcast update over the wire
 112         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 113                 resume
 114                 update
 115         EOF
 116         return 0
 117 }
 118
 119 stop_service() {
 120         rm -rf /var/run/lldp $LLDPSOCKET
 121 }