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 OpenWrt 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 lldp_hostname
  32         config_get lldp_hostname 'config' 'lldp_hostname' "$(cat /proc/sys/kernel/hostname)"
  33
  34         local ifaces
  35         config_get ifaces 'config' 'interface'
  36
  37         local iface ifnames=""
  38         for iface in $ifaces; do
  39                 local ifname=""
  40                 if network_get_device ifname "$iface" || [ -e "/sys/class/net/$iface" ]; then
  41                         append ifnames "${ifname:-$iface}" ","
  42                 fi
  43         done
  44
  45         local lldp_mgmt_ip
  46         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
  47
  48         # Clear out the config file first
  49         echo -n > "$LLDPD_CONF"
  50         [ -n "$ifnames" ] && echo "configure system interface pattern" "$ifnames" >> "$LLDPD_CONF"
  51         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
  52         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
  53         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
  54
  55         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
  56         [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR
  57 }
  58
  59 start_service() {
  60
  61         local enable_cdp
  62         local enable_fdp
  63         local enable_sonmp
  64         local enable_edp
  65         local lldp_class
  66         local lldp_location
  67         local readonly_mode
  68         local agentxsocket
  69
  70         config_load 'lldpd'
  71         config_get_bool enable_cdp 'config' 'enable_cdp' 0
  72         config_get_bool enable_fdp 'config' 'enable_fdp' 0
  73         config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
  74         config_get_bool enable_edp 'config' 'enable_edp' 0
  75         config_get lldp_class 'config' 'lldp_class'
  76         config_get lldp_location 'config' 'lldp_location'
  77         config_get_bool readonly_mode 'config' 'readonly_mode' 0
  78         config_get agentxsocket 'config' 'agentxsocket'
  79
  80         mkdir -p /var/run/lldp
  81         chown lldp:lldp /var/run/lldp
  82
  83         # When lldpd starts, it also loads up what we write in this config file
  84         write_lldpd_conf
  85
  86         procd_open_instance
  87         procd_set_param command /usr/sbin/lldpd
  88         procd_append_param command -d # don't daemonize, procd will handle that for us
  89
  90         [ $enable_cdp -gt 0 ] && procd_append_param command '-c'
  91         [ $enable_fdp -gt 0 ] && procd_append_param command '-f'
  92         [ $enable_sonmp -gt 0 ] && procd_append_param command '-s'
  93         [ $enable_edp -gt 0 ] && procd_append_param command '-e'
  94         [ $readonly_mode -gt 0 ] && procd_append_param command '-r'
  95         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
  96         [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
  97
  98         # set auto respawn behavior
  99         procd_set_param respawn
 100         procd_close_instance
 101 }
 102
 103 reload_service() {
 104         running || return 1
 105         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 106                 pause
 107                 unconfigure lldp custom-tlv
 108                 unconfigure system interface pattern
 109                 unconfigure system description
 110                 unconfigure system hostname
 111                 unconfigure system ip management pattern
 112         EOF
 113         # Rewrite lldpd.conf
 114         # If something changed it should be included by the lldpcli call
 115         write_lldpd_conf
 116         $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null
 117         # Broadcast update over the wire
 118         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 119                 resume
 120                 update
 121         EOF
 122         return 0
 123 }
 124
 125 stop_service() {
 126         rm -rf /var/run/lldp $LLDPSOCKET
 127 }