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_EDP=y
   9 CONFIG_LLDPD_WITH_FDP=y
  10 CONFIG_LLDPD_WITH_LLDPMED=y
  11 CONFIG_LLDPD_WITH_SNMP=y
  12 CONFIG_LLDPD_WITH_SONMP=y
  13
  14 USE_PROCD=1
  15 LLDPDBIN=/usr/sbin/lldpd
  16 LLDPCLI=/usr/sbin/lldpcli
  17 LLDPSOCKET=/var/run/lldpd.socket
  18 LLDPD_CONF=/tmp/lldpd.conf
  19 LLDPD_CONFS_DIR=/tmp/lldpd.d
  20
  21 LLDPD_RUN=/var/run/lldpd
  22 LLDPD_RESTART_HASH=${LLDPD_RUN}/lldpd.restart_hash
  23
  24 . "$IPKG_INSTROOT/lib/functions/network.sh"
  25
  26 find_release_info()
  27 {
  28         [ -s /etc/os-release ] && . /etc/os-release
  29         [ -z "$PRETTY_NAME" ] && [ -s /etc/openwrt_version ] && \
  30                 PRETTY_NAME="$(cat /etc/openwrt_version)"
  31
  32         echo "${PRETTY_NAME:-Unknown OpenWrt release} @ $(cat /proc/sys/kernel/hostname)"
  33 }
  34
  35 get_config_restart_hash() {
  36         local var="$1"
  37         local _string _hash v
  38
  39         config_load 'lldpd'
  40
  41         config_get      v 'config' 'lldp_class'; append _string "$v" ","
  42         if [ "$CONFIG_LLDPD_WITH_SNMP" == "y" ]; then
  43                 config_get      v 'config' 'agentxsocket'; append _string "$v" ","
  44         fi
  45         config_get      v 'config' 'cid_interface'; append _string "$v" ","
  46         config_get      v 'config' 'filter'; append _string "$v" ","
  47         config_get_bool v 'config' 'readonly_mode'; append _string "$v" ","
  48         config_get_bool v 'config' 'lldp_no_version'; append _string "$v" ","
  49         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
  50                 config_get_bool v 'config' 'lldpmed_no_inventory'; append _string "$v" ","
  51         fi
  52         config_get_bool v 'config' 'enable_lldp' 1; append _string "$v" ","
  53         config_get_bool v 'config' 'force_lldp'; append _string "$v" ","
  54         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ]; then
  55                 config_get_bool v 'config' 'enable_cdp'; append _string "$v" ","
  56                 config_get      v 'config' 'cdp_version'; append _string "$v" ","
  57                 config_get_bool v 'config' 'force_cdp'; append _string "$v" ","
  58                 config_get_bool v 'config' 'force_cdpv2'; append _string "$v" ","
  59         fi
  60         if [ "$CONFIG_LLDPD_WITH_EDP" == "y" ]; then
  61                 config_get_bool v 'config' 'enable_edp'; append _string "$v" ","
  62                 config_get_bool v 'config' 'force_edp'; append _string "$v" ","
  63         fi
  64         if [ "$CONFIG_LLDPD_WITH_FDP" == "y" ]; then
  65                 config_get_bool v 'config' 'enable_fdp'; append _string "$v" ","
  66                 config_get_bool v 'config' 'force_fdp'; append _string "$v" ","
  67         fi
  68         if [ "$CONFIG_LLDPD_WITH_SONMP" == "y" ]; then
  69                 config_get_bool v 'config' 'enable_sonmp'; append _string "$v" ","
  70                 config_get_bool v 'config' 'force_sonmp'; append _string "$v" ","
  71         fi
  72
  73         _hash=`echo -n "${_string}" | md5sum | awk '{ print \$1 }'`
  74         export -n "$var=$_hash"
  75 }
  76
  77 get_config_cid_ifaces() {
  78         local _ifacesCONFIG_LLDPD_WITH_FDP
  79
  80         local _iface _ifnames=""
  81         for _iface in $_ifaces; do
  82                 local _ifname=""
  83                 if network_get_device _ifname "$_iface" || [ -e "/sys/class/net/$_iface" ]; then
  84                         append _ifnames "${_ifname:-$_iface}" ","
  85                 fi
  86         done
  87
  88         export -n "${1}=$_ifnames"
  89 }
  90
  91 write_lldpd_conf()
  92 {
  93         local lldp_description
  94
  95         config_load 'lldpd'
  96         config_get lldp_description 'config' 'lldp_description' "$(find_release_info)"
  97
  98         local lldp_hostname
  99         config_get lldp_hostname 'config' 'lldp_hostname' "$(cat /proc/sys/kernel/hostname)"
 100
 101         local ifaces
 102         config_get ifaces 'config' 'interface'
 103
 104         local iface ifnames=""
 105         for iface in $ifaces; do
 106                 local ifname=""
 107                 if network_get_device ifname "$iface" || [ -e "/sys/class/net/$iface" ]; then
 108                         append ifnames "${ifname:-$iface}" ","
 109                 fi
 110         done
 111
 112         local lldp_mgmt_ip
 113         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
 114
 115         local lldp_syscapabilities
 116         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
 117
 118         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 119                 local lldpmed_fast_start
 120                 config_get_bool lldpmed_fast_start 'config' 'lldpmed_fast_start' 0
 121
 122                 local lldpmed_fast_start_tx_interval
 123                 config_get lldpmed_fast_start_tx_interval 'config' 'lldpmed_fast_start_tx_interval' 0
 124         fi
 125
 126         local lldp_agenttype
 127         config_get lldp_agenttype 'config' 'lldp_agenttype' 'nearest-bridge'
 128
 129         local lldp_portidsubtype
 130         config_get lldp_portidsubtype 'config' 'lldp_portidsubtype' 'macaddress'
 131
 132         local lldp_platform
 133         config_get lldp_platform 'config' 'lldp_platform' ""
 134
 135         local lldp_tx_interval
 136         config_get lldp_tx_interval 'config' 'lldp_tx_interval' 0
 137
 138         local lldp_tx_hold
 139         config_get lldp_tx_hold 'config' 'lldp_tx_hold' 0
 140
 141         # Clear out the config file first
 142         echo -n > "$LLDPD_CONF"
 143         [ -n "$ifnames" ] && echo "configure system interface pattern" "$ifnames" >> "$LLDPD_CONF"
 144         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
 145         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
 146         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
 147         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled" "\"$lldp_syscapabilities\"" >> "$LLDPD_CONF"
 148         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_fast_start -gt 0 ]; then
 149                 if [ $lldpmed_fast_start_tx_interval -gt 0 ]; then
 150                         echo "configure med fast-start tx-interval" "\"$lldpmed_fast_start_tx_interval\"" >> "$LLDPD_CONF"
 151                 else
 152                         echo "configure med fast-start" "enable" >> "$LLDPD_CONF"
 153                 fi
 154         fi
 155         [ -n "$lldp_agenttype" ] && echo "configure lldp agent-type" "\"$lldp_agenttype\"" >> "$LLDPD_CONF"
 156         [ -n "$lldp_portidsubtype" ] && echo "configure lldp portidsubtype" "\"$lldp_portidsubtype\"" >> "$LLDPD_CONF"
 157         [ -n "$lldp_platform" ] && echo "configure system platform" "\"$lldp_platform\"" >> "$LLDPD_CONF"
 158         [ $lldp_tx_interval -gt 0 ] && echo "configure lldp tx-interval" "$lldp_tx_interval" >> "$LLDPD_CONF"
 159         [ $lldp_tx_hold -gt 0 ] && echo "configure lldp tx-hold" "$lldp_tx_hold" >> "$LLDPD_CONF"
 160
 161         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
 162         [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR
 163 }
 164
 165 start_service() {
 166
 167         local enable_lldp
 168         local force_lldp
 169         local enable_cdp
 170         local cdp_version
 171         local force_cdp
 172         local force_cdpv2
 173         local enable_fdp
 174         local force_fdp
 175         local enable_sonmp
 176         local force_sonmp
 177         local enable_edp
 178         local force_edp
 179         local lldp_class
 180         local lldp_location
 181         local lldp_no_version
 182         local lldpmed_no_inventory
 183         local readonly_mode
 184         local agentxsocket
 185         local filter
 186
 187         config_load 'lldpd'
 188         config_get_bool enable_lldp 'config' 'enable_lldp' 1
 189         config_get_bool force_lldp 'config' 'force_lldp' 0
 190         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ]; then
 191                 config_get_bool enable_cdp 'config' 'enable_cdp' 0
 192                 config_get cdp_version 'config' 'cdp_version' 'cdpv1v2'
 193                 config_get_bool force_cdp 'config' 'force_cdp' 0
 194                 config_get_bool force_cdpv2 'config' 'force_cdpv2' 0
 195         fi
 196         if [ "$CONFIG_LLDPD_WITH_FDP" == "y" ]; then
 197                 config_get_bool enable_fdp 'config' 'enable_fdp' 0
 198                 config_get_bool force_fdp 'config' 'force_fdp' 0
 199         fi
 200         if [ "$CONFIG_LLDPD_WITH_SONMP" == "y" ]; then
 201                 config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
 202                 config_get_bool force_sonmp 'config' 'force_sonmp' 0
 203         fi
 204         if [ "$CONFIG_LLDPD_WITH_EDP" == "y" ]; then
 205                 config_get_bool enable_edp 'config' 'enable_edp' 0
 206                 config_get_bool force_edp 'config' 'force_edp' 0
 207         fi
 208         config_get lldp_class 'config' 'lldp_class'
 209         config_get lldp_location 'config' 'lldp_location'
 210         config_get_bool lldp_no_version 'config' 'lldp_no_version' 0
 211         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 212                 config_get_bool lldpmed_no_inventory 'config' 'lldpmed_no_inventory' 0
 213         fi
 214         config_get_bool readonly_mode 'config' 'readonly_mode' 0
 215         if [ "$CONFIG_LLDPD_WITH_SNMP" == "y" ]; then
 216                 config_get agentxsocket 'config' 'agentxsocket'
 217         fi
 218         config_get filter 'config' 'filter' 15
 219
 220         mkdir -p ${LLDPD_RUN}
 221         chown lldp:lldp ${LLDPD_RUN}
 222
 223         # When lldpd starts, it also loads up what we write in this config file
 224         write_lldpd_conf
 225
 226         procd_open_instance
 227         procd_set_param command ${LLDPDBIN}
 228         procd_append_param command -d
 229
 230         if [ $enable_lldp -gt 0 ]; then
 231                 if [ $force_lldp -gt 0 ]; then
 232                         procd_append_param command '-l'
 233                 fi
 234         else
 235                 # Disable LLDP
 236                 procd_append_param command '-ll'
 237         fi
 238
 239         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ] && [ $enable_cdp -gt 0 ]; then
 240                 if [ $cdp_version == "cdpv2" ]; then
 241                         if [ $force_cdp -gt 0 ]; then
 242                                 # CDPv1 disabled, CDPv2 forced
 243                                 procd_append_param command '-ccccc'
 244                         else
 245                                 # CDPv1 disabled, CDPv2 enabled
 246                                 procd_append_param command '-cccc'
 247                         fi
 248                 elif [ $cdp_version == "cdpv1v2" ]; then
 249                         if [ $force_cdp -gt 0 ] && [ $force_cdpv2 -gt 0 ]; then
 250                                 # CDPv1 enabled, CDPv2 forced
 251                                 procd_append_param command '-ccc'
 252                         elif [ $force_cdp -gt 0 ]; then
 253                                 # CDPv1 forced, CDPv2 enabled
 254                                 procd_append_param command '-cc'
 255                         else
 256                                 # CDPv1 and CDPv2 enabled
 257                                 procd_append_param command '-c'
 258                         fi
 259                 fi
 260         fi
 261
 262         if [ "$CONFIG_LLDPD_WITH_FDP" == "y" ] && [ $enable_fdp -gt 0 ]; then
 263                 if [ $force_fdp -gt 0 ]; then
 264                         # FDP enabled and forced
 265                         procd_append_param command '-ff'
 266                 else
 267                         # FDP enabled
 268                         procd_append_param command '-f'
 269                 fi
 270         fi
 271
 272         if [ "$CONFIG_LLDPD_WITH_SONMP" == "y" ] && [ $enable_sonmp -gt 0 ]; then
 273                 if [ $force_sonmp -gt 0 ]; then
 274                         # SONMP enabled and forced
 275                         procd_append_param command '-ss'
 276                 else
 277                         # SONMP enabled
 278                         procd_append_param command '-s'
 279                 fi
 280         fi
 281
 282         if [ "$CONFIG_LLDPD_WITH_EDP" == "y" ] && [ $enable_edp -gt 0 ]; then
 283                 if [ $force_edp -gt 0 ]; then
 284                         # EDP enabled and forced
 285                         procd_append_param command '-ee'
 286                 else
 287                         # EDP enabled
 288                         procd_append_param command '-e'
 289                 fi
 290         fi
 291
 292         [ $readonly_mode -gt 0 ] && procd_append_param command '-r'
 293         [ $lldp_no_version -gt 0 ] && procd_append_param command '-k'
 294         [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_no_inventory -gt 0 ] && procd_append_param command '-i'
 295         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 296         [ "$CONFIG_LLDPD_WITH_SNMP" == "y" ] && [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 297         [ -n "$filter" ] && procd_append_param command -H "$filter"
 298
 299     # ChassisID interfaces
 300         local ifnames
 301         get_config_cid_ifaces ifnames
 302         [ -n "$ifnames" ] && procd_append_param command -C "$ifnames"
 303
 304     # Overwrite default configuration locations processed by lldpcli at start
 305         procd_append_param command -O "$LLDPD_CONF"
 306
 307         local restart_hash
 308         get_config_restart_hash restart_hash
 309         echo -n "$restart_hash" > $LLDPD_RESTART_HASH
 310
 311         # set auto respawn behavior
 312         procd_set_param respawn
 313         procd_close_instance
 314 }
 315
 316 service_triggers() {
 317         procd_add_config_trigger "config.change" "lldpd" /etc/init.d/lldpd reload
 318 }
 319
 320 reload_service() {
 321         running || return 1
 322
 323         local running_hash=""
 324         local config_hash=""
 325
 326         get_config_restart_hash config_hash
 327         if [ -f ${LLDPD_RESTART_HASH} ]; then running_hash=`cat $LLDPD_RESTART_HASH`; fi
 328
 329         if [ "x$running_hash" != "x$config_hash" ]; then
 330                 # Restart LLDPd
 331                 # Some parameters can't be configured at runtime
 332                 restart
 333                 return 0
 334         fi
 335
 336         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 337                 pause
 338                 unconfigure lldp custom-tlv
 339                 unconfigure system interface pattern
 340                 unconfigure system description
 341                 unconfigure system hostname
 342                 unconfigure system ip management pattern
 343                 unconfigure system platform
 344         EOF
 345         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 346                 $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 347                         unconfigure med fast-start
 348                 EOF
 349
 350         fi
 351         # Rewrite lldpd.conf
 352         # If something changed it should be included by the lldpcli call
 353         write_lldpd_conf
 354         $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null
 355         # Broadcast update over the wire
 356         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 357                 resume
 358                 update
 359         EOF
 360         return 0
 361 }
 362
 363 stop_service() {
 364         rm -rf ${LLDPD_RUN} $LLDPSOCKET 2>/dev/null
 365 }
 366