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 CONFIG_LLDPD_WITH_LLDPMED=y
   8
   9 USE_PROCD=1
  10 LLDPDBIN=/usr/sbin/lldpd
  11 LLDPCLI=/usr/sbin/lldpcli
  12 LLDPSOCKET=/var/run/lldpd.socket
  13 LLDPD_CONF=/tmp/lldpd.conf
  14 LLDPD_CONFS_DIR=/tmp/lldpd.d
  15
  16 LLDPD_RUN=/var/run/lldpd
  17 LLDPD_RESTART_HASH=${LLDPD_RUN}/lldpd.restart_hash
  18
  19 . "$IPKG_INSTROOT/lib/functions/network.sh"
  20
  21 find_release_info()
  22 {
  23         [ -s /etc/os-release ] && . /etc/os-release
  24         [ -z "$PRETTY_NAME" ] && [ -s /etc/openwrt_version ] && \
  25                 PRETTY_NAME="$(cat /etc/openwrt_version)"
  26
  27         echo "${PRETTY_NAME:-Unknown OpenWrt release} @ $(cat /proc/sys/kernel/hostname)"
  28 }
  29
  30 get_config_restart_hash() {
  31         local var="$1"
  32         local _string _hash v
  33
  34         config_load 'lldpd'
  35
  36         config_get      v 'config' 'lldp_class'; append _string "$v" ","
  37         config_get      v 'config' 'agentxsocket'; append _string "$v" ","
  38         config_get      v 'config' 'cid_interface'; append _string "$v" ","
  39         config_get      v 'config' 'filter'; append _string "$v" ","
  40         config_get_bool v 'config' 'readonly_mode'; append _string "$v" ","
  41         config_get_bool v 'config' 'lldp_no_version'; append _string "$v" ","
  42         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
  43                 config_get_bool v 'config' 'lldpmed_no_inventory'; append _string "$v" ","
  44         fi
  45         config_get_bool v 'config' 'enable_lldp' 1; append _string "$v" ","
  46         config_get_bool v 'config' 'force_lldp'; append _string "$v" ","
  47         config_get_bool v 'config' 'enable_cdp'; append _string "$v" ","
  48         config_get_bool v 'config' 'enable_edp'; append _string "$v" ","
  49         config_get_bool v 'config' 'enable_fdp'; append _string "$v" ","
  50         config_get_bool v 'config' 'enable_sonmp'; append _string "$v" ","
  51
  52         _hash=`echo -n "${_string}" | md5sum | awk '{ print \$1 }'`
  53         export -n "$var=$_hash"
  54 }
  55
  56 get_config_cid_ifaces() {
  57         local _ifaces
  58         config_get _ifaces 'config' 'cid_interface'
  59
  60         local _iface _ifnames=""
  61         for _iface in $_ifaces; do
  62                 local _ifname=""
  63                 if network_get_device _ifname "$_iface" || [ -e "/sys/class/net/$_iface" ]; then
  64                         append _ifnames "${_ifname:-$_iface}" ","
  65                 fi
  66         done
  67
  68         export -n "${1}=$_ifnames"
  69 }
  70
  71 write_lldpd_conf()
  72 {
  73         local lldp_description
  74
  75         config_load 'lldpd'
  76         config_get lldp_description 'config' 'lldp_description' "$(find_release_info)"
  77
  78         local lldp_hostname
  79         config_get lldp_hostname 'config' 'lldp_hostname' "$(cat /proc/sys/kernel/hostname)"
  80
  81         local ifaces
  82         config_get ifaces 'config' 'interface'
  83
  84         local iface ifnames=""
  85         for iface in $ifaces; do
  86                 local ifname=""
  87                 if network_get_device ifname "$iface" || [ -e "/sys/class/net/$iface" ]; then
  88                         append ifnames "${ifname:-$iface}" ","
  89                 fi
  90         done
  91
  92         local lldp_mgmt_ip
  93         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
  94
  95         local lldp_syscapabilities
  96         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
  97
  98         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
  99                 local lldpmed_fast_start
 100                 config_get_bool lldpmed_fast_start 'config' 'lldpmed_fast_start' 0
 101
 102                 local lldpmed_fast_start_tx_interval
 103                 config_get lldpmed_fast_start_tx_interval 'config' 'lldpmed_fast_start_tx_interval' 0
 104         fi
 105
 106         local lldp_agenttype
 107         config_get lldp_agenttype 'config' 'lldp_agenttype' 'nearest-bridge'
 108
 109         local lldp_portidsubtype
 110         config_get lldp_portidsubtype 'config' 'lldp_portidsubtype' 'macaddress'
 111
 112         # Clear out the config file first
 113         echo -n > "$LLDPD_CONF"
 114         [ -n "$ifnames" ] && echo "configure system interface pattern" "$ifnames" >> "$LLDPD_CONF"
 115         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
 116         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
 117         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
 118         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled" "\"$lldp_syscapabilities\"" >> "$LLDPD_CONF"
 119         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_fast_start -gt 0 ]; then
 120                 if [ $lldpmed_fast_start_tx_interval -gt 0 ]; then
 121                         echo "configure med fast-start tx-interval" "\"$lldpmed_fast_start_tx_interval\"" >> "$LLDPD_CONF"
 122                 else
 123                         echo "configure med fast-start" "enable" >> "$LLDPD_CONF"
 124                 fi
 125         fi
 126         [ -n "$lldp_agenttype" ] && echo "configure lldp agent-type" "\"$lldp_agenttype\"" >> "$LLDPD_CONF"
 127         [ -n "$lldp_portidsubtype" ] && echo "configure lldp portidsubtype" "\"$lldp_portidsubtype\"" >> "$LLDPD_CONF"
 128
 129         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
 130         [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR
 131 }
 132
 133 start_service() {
 134
 135         local enable_lldp
 136         local force_lldp
 137         local enable_cdp
 138         local enable_fdp
 139         local enable_sonmp
 140         local enable_edp
 141         local lldp_class
 142         local lldp_location
 143         local lldp_no_version
 144         local lldpmed_no_inventory
 145         local readonly_mode
 146         local agentxsocket
 147         local filter
 148
 149         config_load 'lldpd'
 150         config_get_bool enable_lldp 'config' 'enable_lldp' 1
 151         config_get_bool force_lldp 'config' 'force_lldp' 0
 152         config_get_bool enable_cdp 'config' 'enable_cdp' 0
 153         config_get_bool enable_fdp 'config' 'enable_fdp' 0
 154         config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
 155         config_get_bool enable_edp 'config' 'enable_edp' 0
 156         config_get lldp_class 'config' 'lldp_class'
 157         config_get lldp_location 'config' 'lldp_location'
 158         config_get_bool lldp_no_version 'config' 'lldp_no_version' 0
 159         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 160                 config_get_bool lldpmed_no_inventory 'config' 'lldpmed_no_inventory' 0
 161         fi
 162         config_get_bool readonly_mode 'config' 'readonly_mode' 0
 163         config_get agentxsocket 'config' 'agentxsocket'
 164         config_get filter 'config' 'filter' 15
 165
 166         mkdir -p ${LLDPD_RUN}
 167         chown lldp:lldp ${LLDPD_RUN}
 168
 169         # When lldpd starts, it also loads up what we write in this config file
 170         write_lldpd_conf
 171
 172         procd_open_instance
 173         procd_set_param command ${LLDPDBIN}
 174         procd_append_param command -d
 175
 176         if [ $enable_lldp -gt 0 ]; then
 177                 if [ $force_lldp -gt 0 ]; then
 178                         procd_append_param command '-l'
 179                 fi
 180         else
 181                 # Disable LLDP
 182                 procd_append_param command '-ll'
 183         fi
 184
 185         [ $enable_cdp -gt 0 ] && procd_append_param command '-c'
 186         [ $enable_fdp -gt 0 ] && procd_append_param command '-f'
 187         [ $enable_sonmp -gt 0 ] && procd_append_param command '-s'
 188         [ $enable_edp -gt 0 ] && procd_append_param command '-e'
 189         [ $readonly_mode -gt 0 ] && procd_append_param command '-r'
 190         [ $lldp_no_version -gt 0 ] && procd_append_param command '-k'
 191         [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_no_inventory -gt 0 ] && procd_append_param command '-i'
 192         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 193         [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 194         [ -n "$filter" ] && procd_append_param command -H "$filter"
 195
 196     # ChassisID interfaces
 197         local ifnames
 198         get_config_cid_ifaces ifnames
 199         [ -n "$ifnames" ] && procd_append_param command -C "$ifnames"
 200
 201     # Overwrite default configuration locations processed by lldpcli at start
 202         procd_append_param command -O "$LLDPD_CONF"
 203
 204         local restart_hash
 205         get_config_restart_hash restart_hash
 206         echo -n "$restart_hash" > $LLDPD_RESTART_HASH
 207
 208         # set auto respawn behavior
 209         procd_set_param respawn
 210         procd_close_instance
 211 }
 212
 213 service_triggers() {
 214         procd_add_config_trigger "config.change" "lldpd" /etc/init.d/lldpd reload
 215 }
 216
 217 reload_service() {
 218         running || return 1
 219
 220         local running_hash=""
 221         local config_hash=""
 222
 223         get_config_restart_hash config_hash
 224         if [ -f ${LLDPD_RESTART_HASH} ]; then running_hash=`cat $LLDPD_RESTART_HASH`; fi
 225
 226         if [ "x$running_hash" != "x$config_hash" ]; then
 227                 # Restart LLDPd
 228                 # Some parameters can't be configured at runtime
 229                 restart
 230                 return 0
 231         fi
 232
 233         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 234                 pause
 235                 unconfigure lldp custom-tlv
 236                 unconfigure system interface pattern
 237                 unconfigure system description
 238                 unconfigure system hostname
 239                 unconfigure system ip management pattern
 240         EOF
 241         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 242                 $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 243                         unconfigure med fast-start
 244                 EOF
 245         fi
 246         # Rewrite lldpd.conf
 247         # If something changed it should be included by the lldpcli call
 248         write_lldpd_conf
 249         $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null
 250         # Broadcast update over the wire
 251         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 252                 resume
 253                 update
 254         EOF
 255         return 0
 256 }
 257
 258 stop_service() {
 259         rm -rf ${LLDPD_RUN} $LLDPSOCKET 2>/dev/null
 260 }
 261