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_CDP=y
   8 CONFIG_LLDPD_WITH_LLDPMED=y
   9
  10 USE_PROCD=1
  11 LLDPDBIN=/usr/sbin/lldpd
  12 LLDPCLI=/usr/sbin/lldpcli
  13 LLDPSOCKET=/var/run/lldpd.socket
  14 LLDPD_CONF=/tmp/lldpd.conf
  15 LLDPD_CONFS_DIR=/tmp/lldpd.d
  16
  17 LLDPD_RUN=/var/run/lldpd
  18 LLDPD_RESTART_HASH=${LLDPD_RUN}/lldpd.restart_hash
  19
  20 . "$IPKG_INSTROOT/lib/functions/network.sh"
  21
  22 find_release_info()
  23 {
  24         [ -s /etc/os-release ] && . /etc/os-release
  25         [ -z "$PRETTY_NAME" ] && [ -s /etc/openwrt_version ] && \
  26                 PRETTY_NAME="$(cat /etc/openwrt_version)"
  27
  28         echo "${PRETTY_NAME:-Unknown OpenWrt release} @ $(cat /proc/sys/kernel/hostname)"
  29 }
  30
  31 get_config_restart_hash() {
  32         local var="$1"
  33         local _string _hash v
  34
  35         config_load 'lldpd'
  36
  37         config_get      v 'config' 'lldp_class'; append _string "$v" ","
  38         config_get      v 'config' 'agentxsocket'; append _string "$v" ","
  39         config_get      v 'config' 'cid_interface'; append _string "$v" ","
  40         config_get      v 'config' 'filter'; append _string "$v" ","
  41         config_get_bool v 'config' 'readonly_mode'; append _string "$v" ","
  42         config_get_bool v 'config' 'lldp_no_version'; append _string "$v" ","
  43         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
  44                 config_get_bool v 'config' 'lldpmed_no_inventory'; append _string "$v" ","
  45         fi
  46         config_get_bool v 'config' 'enable_lldp' 1; append _string "$v" ","
  47         config_get_bool v 'config' 'force_lldp'; append _string "$v" ","
  48         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ]; then
  49                 config_get_bool v 'config' 'enable_cdp'; append _string "$v" ","
  50                 config_get      v 'config' 'cdp_version'; append _string "$v" ","
  51                 config_get_bool v 'config' 'force_cdp'; append _string "$v" ","
  52                 config_get_bool v 'config' 'force_cdpv2'; append _string "$v" ","
  53         fi
  54         config_get_bool v 'config' 'enable_edp'; append _string "$v" ","
  55         config_get_bool v 'config' 'enable_fdp'; append _string "$v" ","
  56         config_get_bool v 'config' 'enable_sonmp'; append _string "$v" ","
  57
  58         _hash=`echo -n "${_string}" | md5sum | awk '{ print \$1 }'`
  59         export -n "$var=$_hash"
  60 }
  61
  62 get_config_cid_ifaces() {
  63         local _ifaces
  64         config_get _ifaces 'config' 'cid_interface'
  65
  66         local _iface _ifnames=""
  67         for _iface in $_ifaces; do
  68                 local _ifname=""
  69                 if network_get_device _ifname "$_iface" || [ -e "/sys/class/net/$_iface" ]; then
  70                         append _ifnames "${_ifname:-$_iface}" ","
  71                 fi
  72         done
  73
  74         export -n "${1}=$_ifnames"
  75 }
  76
  77 write_lldpd_conf()
  78 {
  79         local lldp_description
  80
  81         config_load 'lldpd'
  82         config_get lldp_description 'config' 'lldp_description' "$(find_release_info)"
  83
  84         local lldp_hostname
  85         config_get lldp_hostname 'config' 'lldp_hostname' "$(cat /proc/sys/kernel/hostname)"
  86
  87         local ifaces
  88         config_get ifaces 'config' 'interface'
  89
  90         local iface ifnames=""
  91         for iface in $ifaces; do
  92                 local ifname=""
  93                 if network_get_device ifname "$iface" || [ -e "/sys/class/net/$iface" ]; then
  94                         append ifnames "${ifname:-$iface}" ","
  95                 fi
  96         done
  97
  98         local lldp_mgmt_ip
  99         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
 100
 101         local lldp_syscapabilities
 102         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
 103
 104         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 105                 local lldpmed_fast_start
 106                 config_get_bool lldpmed_fast_start 'config' 'lldpmed_fast_start' 0
 107
 108                 local lldpmed_fast_start_tx_interval
 109                 config_get lldpmed_fast_start_tx_interval 'config' 'lldpmed_fast_start_tx_interval' 0
 110         fi
 111
 112         local lldp_agenttype
 113         config_get lldp_agenttype 'config' 'lldp_agenttype' 'nearest-bridge'
 114
 115         local lldp_portidsubtype
 116         config_get lldp_portidsubtype 'config' 'lldp_portidsubtype' 'macaddress'
 117
 118         # Clear out the config file first
 119         echo -n > "$LLDPD_CONF"
 120         [ -n "$ifnames" ] && echo "configure system interface pattern" "$ifnames" >> "$LLDPD_CONF"
 121         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
 122         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
 123         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
 124         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled" "\"$lldp_syscapabilities\"" >> "$LLDPD_CONF"
 125         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_fast_start -gt 0 ]; then
 126                 if [ $lldpmed_fast_start_tx_interval -gt 0 ]; then
 127                         echo "configure med fast-start tx-interval" "\"$lldpmed_fast_start_tx_interval\"" >> "$LLDPD_CONF"
 128                 else
 129                         echo "configure med fast-start" "enable" >> "$LLDPD_CONF"
 130                 fi
 131         fi
 132         [ -n "$lldp_agenttype" ] && echo "configure lldp agent-type" "\"$lldp_agenttype\"" >> "$LLDPD_CONF"
 133         [ -n "$lldp_portidsubtype" ] && echo "configure lldp portidsubtype" "\"$lldp_portidsubtype\"" >> "$LLDPD_CONF"
 134
 135         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
 136         [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR
 137 }
 138
 139 start_service() {
 140
 141         local enable_lldp
 142         local force_lldp
 143         local enable_cdp
 144         local cdp_version
 145         local force_cdp
 146         local force_cdpv2
 147         local enable_fdp
 148         local enable_sonmp
 149         local enable_edp
 150         local lldp_class
 151         local lldp_location
 152         local lldp_no_version
 153         local lldpmed_no_inventory
 154         local readonly_mode
 155         local agentxsocket
 156         local filter
 157
 158         config_load 'lldpd'
 159         config_get_bool enable_lldp 'config' 'enable_lldp' 1
 160         config_get_bool force_lldp 'config' 'force_lldp' 0
 161         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ]; then
 162                 config_get_bool enable_cdp 'config' 'enable_cdp' 0
 163                 config_get cdp_version 'config' 'cdp_version' 'cdpv1v2'
 164                 config_get_bool force_cdp 'config' 'force_cdp' 0
 165                 config_get_bool force_cdpv2 'config' 'force_cdpv2' 0
 166         fi
 167         config_get_bool enable_fdp 'config' 'enable_fdp' 0
 168         config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
 169         config_get_bool enable_edp 'config' 'enable_edp' 0
 170         config_get lldp_class 'config' 'lldp_class'
 171         config_get lldp_location 'config' 'lldp_location'
 172         config_get_bool lldp_no_version 'config' 'lldp_no_version' 0
 173         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 174                 config_get_bool lldpmed_no_inventory 'config' 'lldpmed_no_inventory' 0
 175         fi
 176         config_get_bool readonly_mode 'config' 'readonly_mode' 0
 177         config_get agentxsocket 'config' 'agentxsocket'
 178         config_get filter 'config' 'filter' 15
 179
 180         mkdir -p ${LLDPD_RUN}
 181         chown lldp:lldp ${LLDPD_RUN}
 182
 183         # When lldpd starts, it also loads up what we write in this config file
 184         write_lldpd_conf
 185
 186         procd_open_instance
 187         procd_set_param command ${LLDPDBIN}
 188         procd_append_param command -d
 189
 190         if [ $enable_lldp -gt 0 ]; then
 191                 if [ $force_lldp -gt 0 ]; then
 192                         procd_append_param command '-l'
 193                 fi
 194         else
 195                 # Disable LLDP
 196                 procd_append_param command '-ll'
 197         fi
 198
 199         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ] && [ $enable_cdp -gt 0 ]; then
 200                 if [ $cdp_version == "cdpv2" ]; then
 201                         if [ $force_cdp -gt 0 ]; then
 202                                 # CDPv1 disabled, CDPv2 forced
 203                                 procd_append_param command '-ccccc'
 204                         else
 205                                 # CDPv1 disabled, CDPv2 enabled
 206                                 procd_append_param command '-cccc'
 207                         fi
 208                 elif [ $cdp_version == "cdpv1v2" ]; then
 209                         if [ $force_cdp -gt 0 ] && [ $force_cdpv2 -gt 0 ]; then
 210                                 # CDPv1 enabled, CDPv2 forced
 211                                 procd_append_param command '-ccc'
 212                         elif [ $force_cdp -gt 0 ]; then
 213                                 # CDPv1 forced, CDPv2 enabled
 214                                 procd_append_param command '-cc'
 215                         else
 216                                 # CDPv1 and CDPv2 enabled
 217                                 procd_append_param command '-c'
 218                         fi
 219                 fi
 220         fi
 221
 222         [ $enable_fdp -gt 0 ] && procd_append_param command '-f'
 223         [ $enable_sonmp -gt 0 ] && procd_append_param command '-s'
 224         [ $enable_edp -gt 0 ] && procd_append_param command '-e'
 225         [ $readonly_mode -gt 0 ] && procd_append_param command '-r'
 226         [ $lldp_no_version -gt 0 ] && procd_append_param commanpackage/network/services/lldpd/Makefile package/network/services/lldpd/files/lldpd.initd '-k'
 227         [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_no_inventory -gt 0 ] && procd_append_param command '-i'
 228         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 229         [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 230         [ -n "$filter" ] && procd_append_param command -H "$filter"
 231
 232     # ChassisID interfaces
 233         local ifnames
 234         get_config_cid_ifaces ifnames
 235         [ -n "$ifnames" ] && procd_append_param command -C "$ifnames"
 236
 237     # Overwrite default configuration locations processed by lldpcli at start
 238         procd_append_param command -O "$LLDPD_CONF"
 239
 240         local restart_hash
 241         get_config_restart_hash restart_hash
 242         echo -n "$restart_hash" > $LLDPD_RESTART_HASH
 243
 244         # set auto respawn behavior
 245         procd_set_param respawn
 246         procd_close_instance
 247 }
 248
 249 service_triggers() {
 250         procd_add_config_trigger "config.change" "lldpd" /etc/init.d/lldpd reload
 251 }
 252
 253 reload_service() {
 254         running || return 1
 255
 256         local running_hash=""
 257         local config_hash=""
 258
 259         get_config_restart_hash config_hash
 260         if [ -f ${LLDPD_RESTART_HASH} ]; then running_hash=`cat $LLDPD_RESTART_HASH`; fi
 261
 262         if [ "x$running_hash" != "x$config_hash" ]; then
 263                 # Restart LLDPd
 264                 # Some parameters can't be configured at runtime
 265                 restart
 266                 return 0
 267         fi
 268
 269         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 270                 pause
 271                 unconfigure lldp custom-tlv
 272                 unconfigure system interface pattern
 273                 unconfigure system description
 274                 unconfigure system hostname
 275                 unconfigure system ip management pattern
 276         EOF
 277         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 278                 $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 279                         unconfigure med fast-start
 280                 EOF
 281         fi
 282         # Rewrite lldpd.conf
 283         # If something changed it should be included by the lldpcli call
 284         write_lldpd_conf
 285         $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null
 286         # Broadcast update over the wire
 287         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 288                 resume
 289                 update
 290         EOF
 291         return 0
 292 }
 293
 294 stop_service() {
 295         rm -rf ${LLDPD_RUN} $LLDPSOCKET 2>/dev/null
 296 }
 297