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' "$2"
  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' "$(cat /proc/sys/kernel/hostname)"
 101
 102         local ifnames
 103         get_config_cid_ifaces ifnames "interface"
 104
 105         local lldp_mgmt_ip
 106         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
 107
 108         local lldp_syscapabilities
 109         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
 110
 111         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 112                 local lldpmed_fast_start
 113                 config_get_bool lldpmed_fast_start 'config' 'lldpmed_fast_start' 0
 114
 115                 local lldpmed_fast_start_tx_interval
 116                 config_get lldpmed_fast_start_tx_interval 'config' 'lldpmed_fast_start_tx_interval' 0
 117
 118                 local lldp_location
 119                 config_get lldp_location 'config' 'lldp_location'
 120
 121                 local lldp_class
 122                 config_get lldp_class 'config' 'lldp_class'
 123
 124                 local lldp_policy
 125                 config_get lldp_policy 'config' 'lldp_policy'
 126
 127         fi
 128
 129         local lldp_agenttype
 130         config_get lldp_agenttype 'config' 'lldp_agenttype' 'nearest-bridge'
 131
 132         local lldp_portidsubtype
 133         config_get lldp_portidsubtype 'config' 'lldp_portidsubtype' 'macaddress'
 134
 135         local lldp_platform
 136         config_get lldp_platform 'config' 'lldp_platform' ""
 137
 138         local lldp_tx_interval
 139         config_get lldp_tx_interval 'config' 'lldp_tx_interval' 0
 140
 141         local lldp_tx_hold
 142         config_get lldp_tx_hold 'config' 'lldp_tx_hold' 0
 143
 144         # Clear out the config file first
 145         echo -n > "$LLDPD_CONF"
 146         [ -n "$ifnames" ] && echo "configure system interface pattern $ifnames" >> "$LLDPD_CONF"
 147         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
 148         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
 149         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
 150         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled $lldp_syscapabilities" >> "$LLDPD_CONF"
 151         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_fast_start -gt 0 ]; then
 152                 if [ $lldpmed_fast_start_tx_interval -gt 0 ]; then
 153                         echo "configure med fast-start tx-interval $lldpmed_fast_start_tx_interval" >> "$LLDPD_CONF"
 154                 else
 155                         echo "configure med fast-start enable" >> "$LLDPD_CONF"
 156                 fi
 157         fi
 158         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 159                 # other 'configure med xxx' statements go here
 160
 161                 [ -n "$lldp_location" ] && echo "configure med location" "$lldp_location" >> "$LLDPD_CONF"
 162
 163                 # Manual states that if Class (-M) is 2 or 3, at least one network policy must be defined
 164                 case "$lldp_class" in
 165                         2 | 3 ) [ -n "$lldp_policy" ] && echo "configure med policy $lldp_policy" >> "$LLDPD_CONF"
 166                         ;;
 167                 esac
 168
 169         fi
 170
 171         [ -n "$lldp_agenttype" ] && echo "configure lldp agent-type" "\"$lldp_agenttype\"" >> "$LLDPD_CONF"
 172         [ -n "$lldp_portidsubtype" ] && echo "configure lldp portidsubtype" "\"$lldp_portidsubtype\"" >> "$LLDPD_CONF"
 173         [ -n "$lldp_platform" ] && echo "configure system platform" "\"$lldp_platform\"" >> "$LLDPD_CONF"
 174         [ -n $lldp_tx_interval ] && echo "configure lldp tx-interval $lldp_tx_interval" >> "$LLDPD_CONF"
 175         [ $lldp_tx_hold -gt 0 ] && echo "configure lldp tx-hold $lldp_tx_hold" >> "$LLDPD_CONF"
 176
 177         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
 178         [ -e $LLDPD_CONFS_DIR ] || ln -s /etc/lldpd.d $LLDPD_CONFS_DIR
 179 }
 180
 181 start_service() {
 182
 183         local enable_lldp
 184         local force_lldp
 185         local enable_cdp
 186         local cdp_version
 187         local force_cdp
 188         local force_cdpv2
 189         local enable_fdp
 190         local force_fdp
 191         local enable_sonmp
 192         local force_sonmp
 193         local enable_edp
 194         local force_edp
 195         local lldp_class
 196         local lldp_no_version
 197         local lldpmed_no_inventory
 198         local readonly_mode
 199         local agentxsocket
 200         local filter
 201
 202         config_load 'lldpd'
 203         config_get_bool enable_lldp 'config' 'enable_lldp' 1
 204         config_get_bool force_lldp 'config' 'force_lldp' 0
 205         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ]; then
 206                 config_get_bool enable_cdp 'config' 'enable_cdp' 0
 207                 config_get cdp_version 'config' 'cdp_version' 'cdpv1v2'
 208                 config_get_bool force_cdp 'config' 'force_cdp' 0
 209                 config_get_bool force_cdpv2 'config' 'force_cdpv2' 0
 210         fi
 211         if [ "$CONFIG_LLDPD_WITH_FDP" == "y" ]; then
 212                 config_get_bool enable_fdp 'config' 'enable_fdp' 0
 213                 config_get_bool force_fdp 'config' 'force_fdp' 0
 214         fi
 215         if [ "$CONFIG_LLDPD_WITH_SONMP" == "y" ]; then
 216                 config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
 217                 config_get_bool force_sonmp 'config' 'force_sonmp' 0
 218         fi
 219         if [ "$CONFIG_LLDPD_WITH_EDP" == "y" ]; then
 220                 config_get_bool enable_edp 'config' 'enable_edp' 0
 221                 config_get_bool force_edp 'config' 'force_edp' 0
 222         fi
 223         config_get lldp_class 'config' 'lldp_class'
 224         config_get_bool lldp_no_version 'config' 'lldp_no_version' 0
 225         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 226                 config_get_bool lldpmed_no_inventory 'config' 'lldpmed_no_inventory' 0
 227         fi
 228         config_get_bool readonly_mode 'config' 'readonly_mode' 0
 229         if [ "$CONFIG_LLDPD_WITH_SNMP" == "y" ]; then
 230                 config_get agentxsocket 'config' 'agentxsocket'
 231         fi
 232         config_get filter 'config' 'filter' 15
 233
 234         mkdir -p ${LLDPD_RUN}
 235         chown lldp:lldp ${LLDPD_RUN}
 236
 237         # When lldpd starts, it also loads up what we write in this config file
 238         write_lldpd_conf
 239
 240         procd_open_instance
 241         procd_set_param command ${LLDPDBIN}
 242         procd_append_param command -d
 243
 244         if [ $enable_lldp -gt 0 ]; then
 245                 if [ $force_lldp -gt 0 ]; then
 246                         procd_append_param command '-l'
 247                 fi
 248         else
 249                 # Disable LLDP
 250                 procd_append_param command '-ll'
 251         fi
 252
 253         if [ "$CONFIG_LLDPD_WITH_CDP" == "y" ] && [ $enable_cdp -gt 0 ]; then
 254                 if [ $cdp_version == "cdpv2" ]; then
 255                         if [ $force_cdp -gt 0 ]; then
 256                                 # CDPv1 disabled, CDPv2 forced
 257                                 procd_append_param command '-ccccc'
 258                         else
 259                                 # CDPv1 disabled, CDPv2 enabled
 260                                 procd_append_param command '-cccc'
 261                         fi
 262                 elif [ $cdp_version == "cdpv1v2" ]; then
 263                         if [ $force_cdp -gt 0 ] && [ $force_cdpv2 -gt 0 ]; then
 264                                 # CDPv1 enabled, CDPv2 forced
 265                                 procd_append_param command '-ccc'
 266                         elif [ $force_cdp -gt 0 ]; then
 267                                 # CDPv1 forced, CDPv2 enabled
 268                                 procd_append_param command '-cc'
 269                         else
 270                                 # CDPv1 and CDPv2 enabled
 271                                 procd_append_param command '-c'
 272                         fi
 273                 fi
 274         fi
 275
 276         if [ "$CONFIG_LLDPD_WITH_FDP" == "y" ] && [ $enable_fdp -gt 0 ]; then
 277                 if [ $force_fdp -gt 0 ]; then
 278                         # FDP enabled and forced
 279                         procd_append_param command '-ff'
 280                 else
 281                         # FDP enabled
 282                         procd_append_param command '-f'
 283                 fi
 284         fi
 285
 286         if [ "$CONFIG_LLDPD_WITH_SONMP" == "y" ] && [ $enable_sonmp -gt 0 ]; then
 287                 if [ $force_sonmp -gt 0 ]; then
 288                         # SONMP enabled and forced
 289                         procd_append_param command '-ss'
 290                 else
 291                         # SONMP enabled
 292                         procd_append_param command '-s'
 293                 fi
 294         fi
 295
 296         if [ "$CONFIG_LLDPD_WITH_EDP" == "y" ] && [ $enable_edp -gt 0 ]; then
 297                 if [ $force_edp -gt 0 ]; then
 298                         # EDP enabled and forced
 299                         procd_append_param command '-ee'
 300                 else
 301                         # EDP enabled
 302                         procd_append_param command '-e'
 303                 fi
 304         fi
 305
 306         [ $readonly_mode -gt 0 ] && procd_append_param command '-r'
 307         [ $lldp_no_version -gt 0 ] && procd_append_param command '-k'
 308         [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ] && [ $lldpmed_no_inventory -gt 0 ] && procd_append_param command '-i'
 309         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 310         [ "$CONFIG_LLDPD_WITH_SNMP" == "y" ] && [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 311         [ -n "$filter" ] && procd_append_param command -H "$filter"
 312
 313     # ChassisID interfaces
 314         local ifnames
 315         get_config_cid_ifaces ifnames "cid_interface"
 316
 317         [ -n "$ifnames" ] && procd_append_param command -C "$ifnames"
 318
 319     # Overwrite default configuration locations processed by lldpcli at start
 320         procd_append_param command -O "$LLDPD_CONF"
 321
 322         local restart_hash
 323         get_config_restart_hash restart_hash
 324         echo -n "$restart_hash" > $LLDPD_RESTART_HASH
 325
 326         # set auto respawn behavior
 327         procd_set_param respawn
 328         procd_close_instance
 329 }
 330
 331 service_triggers() {
 332         procd_add_config_trigger "config.change" "lldpd" /etc/init.d/lldpd reload
 333 }
 334
 335 reload_service() {
 336         running || return 1
 337
 338         local running_hash=""
 339         local config_hash=""
 340
 341         get_config_restart_hash config_hash
 342         if [ -f ${LLDPD_RESTART_HASH} ]; then running_hash=`cat $LLDPD_RESTART_HASH`; fi
 343
 344         if [ "x$running_hash" != "x$config_hash" ]; then
 345                 # Restart LLDPd
 346                 # Some parameters can't be configured at runtime
 347                 restart
 348                 return 0
 349         fi
 350
 351         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 352                 pause
 353                 unconfigure lldp custom-tlv
 354                 unconfigure system interface pattern
 355                 unconfigure system description
 356                 unconfigure system hostname
 357                 unconfigure system ip management pattern
 358                 unconfigure system platform
 359         EOF
 360         if [ "$CONFIG_LLDPD_WITH_LLDPMED" == "y" ]; then
 361                 $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 362                         unconfigure med fast-start
 363                 EOF
 364
 365         fi
 366         # Rewrite lldpd.conf
 367         # If something changed it should be included by the lldpcli call
 368         write_lldpd_conf
 369         $LLDPCLI -u $LLDPSOCKET -c $LLDPD_CONF -c $LLDPD_CONFS_DIR &> /dev/null
 370         # Broadcast update over the wire
 371         $LLDPCLI -u $LLDPSOCKET &> /dev/null <<-EOF
 372                 resume
 373                 update
 374         EOF
 375         return 0
 376 }
 377
 378 stop_service() {
 379         rm -rf ${LLDPD_RUN} $LLDPSOCKET 2>/dev/null
 380 }
 381