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:-$iface}" ","
  42                 fi
  43         done
  44
  45         local lldp_mgmt_ip
  46         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
  47
  48         local lldp_syscapabilities
  49         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
  50
  51         # Clear out the config file first
  52         echo -n > "$LLDPD_CONF"
  53         [ -n "$ifnames" ] && echo "configure system interface pattern" "$ifnames" >> "$LLDPD_CONF"
  54         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
  55         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
  56         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
  57         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled" "\"$lldp_syscapabilities\"" >> "$LLDPD_CONF"
  58
  59         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
  60         [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR
  61 }
  62
  63 service_triggers() {
  64         procd_add_reload_trigger "lldpd"
  65 }
  66
  67 start_service() {
  68
  69         local enable_cdp
  70         local enable_fdp
  71         local enable_sonmp
  72         local enable_edp
  73         local lldp_class
  74         local lldp_location
  75         local readonly_mode
  76         local agentxsocket
  77
  78         config_load 'lldpd'
  79         config_get_bool enable_cdp 'config' 'enable_cdp' 0
  80         config_get_bool enable_fdp 'config' 'enable_fdp' 0
  81         config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
  82         config_get_bool enable_edp 'config' 'enable_edp' 0
  83         config_get lldp_class 'config' 'lldp_class'
  84         config_get lldp_location 'config' 'lldp_location'
  85         config_get_bool readonly_mode 'config' 'readonly_mode' 0
  86         config_get agentxsocket 'config' 'agentxsocket'
  87
  88         mkdir -p /var/run/lldp
  89         chown lldp:lldp /var/run/lldp
  90
  91         # When lldpd starts, it also loads up what we write in this config file
  92         write_lldpd_conf
  93
  94         procd_open_instance
  95         procd_set_param command /usr/sbin/lldpd -d
  96
  97         [ $enable_cdp -gt 0 ] && procd_append_param command '-c'
  98         [ $enable_fdp -gt 0 ] && procd_append_param command '-f'
  99         [ $enable_sonmp -gt 0 ] && procd_append_param command '-s'
 100         [ $enable_edp -gt 0 ] && procd_append_param command '-e'
 101         [ $readonly_mode -gt 0 ] && procd_append_param command '-r'
 102         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 103         [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 104
 105         # set auto respawn behavior
 106         procd_set_param respawn
 107         procd_close_instance
 108 }
 109
 110 reload_service() {
 111         running || return 1
 112         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 113                 pause
 114                 unconfigure lldp custom-tlv
 115                 unconfigure system interface pattern
 116                 unconfigure system description
 117                 unconfigure system hostname
 118                 unconfigure system ip management pattern
 119         EOF
 120         # Rewrite lldpd.conf
 121         # If something changed it should be included by the lldpcli call
 122         write_lldpd_conf
 123         $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null
 124         # Broadcast update over the wire
 125         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 126                 resume
 127                 update
 128         EOF
 129         return 0
 130 }
 131
 132 stop_service() {
 133         rm -rf /var/run/lldp $LLDPSOCKET
 134 }