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