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 _ifaces
  79         config_get _ifaces 'config' 'cid_interface'
  80
  81         local _iface _ifnames=""
  82         for _iface in $_ifaces; do
  83                 local _ifname=""
  84                 if network_get_device _ifname "$_iface" || [ -e "/sys/class/net/$_iface" ]; then
  85                         append _ifnames "${_ifname:-$_iface}" ","
  86                 fi
  87         done
  88
  89         export -n "${1}=$_ifnames"
  90 }
  91
  92 write_lldpd_conf()
  93 {
  94         local lldp_description
  95
  96         config_load 'lldpd'
  97         config_get lldp_description 'config' 'lldp_description' "$(find_release_info)"
  98
  99         local lldp_hostname
 100         config_get lldp_hostname 'config' 'lldp_hostname' "$(cat /proc/sys/kernel/hostname)"
 101
 102         local ifaces
 103         config_get ifaces 'config' 'interface'
 104
 105         local iface ifnames=""
 106         for iface in $ifaces; do
 107                 local ifname=""
 108                 if network_get_device ifname "$iface" || [ -e "/sys/class/net/$iface" ]; then
 109                         append ifnames "${ifname:-$iface}" ","
 110                 fi
 111         done
 112
 113         local lldp_mgmt_ip
 114         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
 115
 116         local lldp_syscapabilities
 117         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
 118
 119         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 120                 local lldpmed_fast_start
 121                 config_get_bool lldpmed_fast_start 'config' 'lldpmed_fast_start' 0
 122
 123                 local lldpmed_fast_start_tx_interval
 124                 config_get lldpmed_fast_start_tx_interval 'config' 'lldpmed_fast_start_tx_interval' 0
 125         fi
 126
 127         local lldp_agenttype
 128         config_get lldp_agenttype 'config' 'lldp_agenttype' 'nearest-bridge'
 129
 130         local lldp_portidsubtype
 131         config_get lldp_portidsubtype 'config' 'lldp_portidsubtype' 'macaddress'
 132
 133         local lldp_platform
 134         config_get lldp_platform 'config' 'lldp_platform' ""
 135
 136         local lldp_tx_interval
 137         config_get lldp_tx_interval 'config' 'lldp_tx_interval' 0
 138
 139         local lldp_tx_hold
 140         config_get lldp_tx_hold 'config' 'lldp_tx_hold' 0
 141
 142         # Clear out the config file first
 143         echo -n > "$LLDPD_CONF"
 144         [ -n "$ifnames" ] && echo "configure system interface pattern" "$ifnames" >> "$LLDPD_CONF"
 145         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
 146         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
 147         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
 148         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled" "\"$lldp_syscapabilities\"" >> "$LLDPD_CONF"
 149         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_fast_start -gt 0 ]; then
 150                 if [ $lldpmed_fast_start_tx_interval -gt 0 ]; then
 151                         echo "configure med fast-start tx-interval $lldpmed_fast_start_tx_interval" >> "$LLDPD_CONF"
 152                 else
 153                         echo "configure med fast-start" "enable" >> "$LLDPD_CONF"
 154                 fi
 155         fi
 156         [ -n "$lldp_agenttype" ] && echo "configure lldp agent-type" "\"$lldp_agenttype\"" >> "$LLDPD_CONF"
 157         [ -n "$lldp_portidsubtype" ] && echo "configure lldp portidsubtype" "\"$lldp_portidsubtype\"" >> "$LLDPD_CONF"
 158         [ -n "$lldp_platform" ] && echo "configure system platform" "\"$lldp_platform\"" >> "$LLDPD_CONF"
 159         [ $lldp_tx_interval -gt 0 ] && echo "configure lldp tx-interval" "$lldp_tx_interval" >> "$LLDPD_CONF"
 160         [ $lldp_tx_hold -gt 0 ] && echo "configure lldp tx-hold" "$lldp_tx_hold" >> "$LLDPD_CONF"
 161
 162         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
 163         [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR
 164 }
 165
 166 start_service() {
 167
 168         local enable_lldp
 169         local force_lldp
 170         local enable_cdp
 171         local cdp_version
 172         local force_cdp
 173         local force_cdpv2
 174         local enable_fdp
 175         local force_fdp
 176         local enable_sonmp
 177         local force_sonmp
 178         local enable_edp
 179         local force_edp
 180         local lldp_class
 181         local lldp_location
 182         local lldp_no_version
 183         local lldpmed_no_inventory
 184         local readonly_mode
 185         local agentxsocket
 186         local filter
 187
 188         config_load 'lldpd'
 189         config_get_bool enable_lldp 'config' 'enable_lldp' 1
 190         config_get_bool force_lldp 'config' 'force_lldp' 0
 191         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ]; then
 192                 config_get_bool enable_cdp 'config' 'enable_cdp' 0
 193                 config_get cdp_version 'config' 'cdp_version' 'cdpv1v2'
 194                 config_get_bool force_cdp 'config' 'force_cdp' 0
 195                 config_get_bool force_cdpv2 'config' 'force_cdpv2' 0
 196         fi
 197         if [ "$CONFIG_LLDPD_WITH_FDP" == "y" ]; then
 198                 config_get_bool enable_fdp 'config' 'enable_fdp' 0
 199                 config_get_bool force_fdp 'config' 'force_fdp' 0
 200         fi
 201         if [ "$CONFIG_LLDPD_WITH_SONMP" == "y" ]; then
 202                 config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
 203                 config_get_bool force_sonmp 'config' 'force_sonmp' 0
 204         fi
 205         if [ "$CONFIG_LLDPD_WITH_EDP" == "y" ]; then
 206                 config_get_bool enable_edp 'config' 'enable_edp' 0
 207                 config_get_bool force_edp 'config' 'force_edp' 0
 208         fi
 209         config_get lldp_class 'config' 'lldp_class'
 210         config_get lldp_location 'config' 'lldp_location'
 211         config_get_bool lldp_no_version 'config' 'lldp_no_version' 0
 212         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 213                 config_get_bool lldpmed_no_inventory 'config' 'lldpmed_no_inventory' 0
 214         fi
 215         config_get_bool readonly_mode 'config' 'readonly_mode' 0
 216         if [ "$CONFIG_LLDPD_WITH_SNMP" == "y" ]; then
 217                 config_get agentxsocket 'config' 'agentxsocket'
 218         fi
 219         config_get filter 'config' 'filter' 15
 220
 221         mkdir -p ${LLDPD_RUN}
 222         chown lldp:lldp ${LLDPD_RUN}
 223
 224         # When lldpd starts, it also loads up what we write in this config file
 225         write_lldpd_conf
 226
 227         procd_open_instance
 228         procd_set_param command ${LLDPDBIN}
 229         procd_append_param command -d
 230
 231         if [ $enable_lldp -gt 0 ]; then
 232                 if [ $force_lldp -gt 0 ]; then
 233                         procd_append_param command '-l'
 234                 fi
 235         else
 236                 # Disable LLDP
 237                 procd_append_param command '-ll'
 238         fi
 239
 240         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ] && [ $enable_cdp -gt 0 ]; then
 241                 if [ $cdp_version == "cdpv2" ]; then
 242                         if [ $force_cdp -gt 0 ]; then
 243                                 # CDPv1 disabled, CDPv2 forced
 244                                 procd_append_param command '-ccccc'
 245                         else
 246                                 # CDPv1 disabled, CDPv2 enabled
 247                                 procd_append_param command '-cccc'
 248                         fi
 249                 elif [ $cdp_version == "cdpv1v2" ]; then
 250                         if [ $force_cdp -gt 0 ] && [ $force_cdpv2 -gt 0 ]; then
 251                                 # CDPv1 enabled, CDPv2 forced
 252                                 procd_append_param command '-ccc'
 253                         elif [ $force_cdp -gt 0 ]; then
 254                                 # CDPv1 forced, CDPv2 enabled
 255                                 procd_append_param command '-cc'
 256                         else
 257                                 # CDPv1 and CDPv2 enabled
 258                                 procd_append_param command '-c'
 259                         fi
 260                 fi
 261         fi
 262
 263         if [ "$CONFIG_LLDPD_WITH_FDP" == "y" ] && [ $enable_fdp -gt 0 ]; then
 264                 if [ $force_fdp -gt 0 ]; then
 265                         # FDP enabled and forced
 266                         procd_append_param command '-ff'
 267                 else
 268                         # FDP enabled
 269                         procd_append_param command '-f'
 270                 fi
 271         fi
 272
 273         if [ "$CONFIG_LLDPD_WITH_SONMP" == "y" ] && [ $enable_sonmp -gt 0 ]; then
 274                 if [ $force_sonmp -gt 0 ]; then
 275                         # SONMP enabled and forced
 276                         procd_append_param command '-ss'
 277                 else
 278                         # SONMP enabled
 279                         procd_append_param command '-s'
 280                 fi
 281         fi
 282
 283         if [ "$CONFIG_LLDPD_WITH_EDP" == "y" ] && [ $enable_edp -gt 0 ]; then
 284                 if [ $force_edp -gt 0 ]; then
 285                         # EDP enabled and forced
 286                         procd_append_param command '-ee'
 287                 else
 288                         # EDP enabled
 289                         procd_append_param command '-e'
 290                 fi
 291         fi
 292
 293         [ $readonly_mode -gt 0 ] && procd_append_param command '-r'
 294         [ $lldp_no_version -gt 0 ] && procd_append_param command '-k'
 295         [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_no_inventory -gt 0 ] && procd_append_param command '-i'
 296         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 297         [ "$CONFIG_LLDPD_WITH_SNMP" == "y" ] && [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 298         [ -n "$filter" ] && procd_append_param command -H "$filter"
 299
 300     # ChassisID interfaces
 301         local ifnames
 302         get_config_cid_ifaces ifnames
 303         [ -n "$ifnames" ] && procd_append_param command -C "$ifnames"
 304
 305     # Overwrite default configuration locations processed by lldpcli at start
 306         procd_append_param command -O "$LLDPD_CONF"
 307
 308         local restart_hash
 309         get_config_restart_hash restart_hash
 310         echo -n "$restart_hash" > $LLDPD_RESTART_HASH
 311
 312         # set auto respawn behavior
 313         procd_set_param respawn
 314         procd_close_instance
 315 }
 316
 317 service_triggers() {
 318         procd_add_config_trigger "config.change" "lldpd" /etc/init.d/lldpd reload
 319 }
 320
 321 reload_service() {
 322         running || return 1
 323
 324         local running_hash=""
 325         local config_hash=""
 326
 327         get_config_restart_hash config_hash
 328         if [ -f ${LLDPD_RESTART_HASH} ]; then running_hash=`cat $LLDPD_RESTART_HASH`; fi
 329
 330         if [ "x$running_hash" != "x$config_hash" ]; then
 331                 # Restart LLDPd
 332                 # Some parameters can't be configured at runtime
 333                 restart
 334                 return 0
 335         fi
 336
 337         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 338                 pause
 339                 unconfigure lldp custom-tlv
 340                 unconfigure system interface pattern
 341                 unconfigure system description
 342                 unconfigure system hostname
 343                 unconfigure system ip management pattern
 344                 unconfigure system platform
 345         EOF
 346         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 347                 $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 348                         unconfigure med fast-start
 349                 EOF
 350
 351         fi
 352         # Rewrite lldpd.conf
 353         # If something changed it should be included by the lldpcli call
 354         write_lldpd_conf
 355         $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null
 356         # Broadcast update over the wire
 357         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 358                 resume
 359                 update
 360         EOF
 361         return 0
 362 }
 363
 364 stop_service() {
 365         rm -rf ${LLDPD_RUN} $LLDPSOCKET 2>/dev/null
 366 }
 367