package/network/services/lldpd/files/lldpd.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2008-2015 OpenWrt.org
   3 # shellcheck disable=1091,2034,3037,3043,3045
   4
   5 START=90
   6 STOP=01
   7
   8 CONFIG_LLDPD_WITH_CDP=y
   9 CONFIG_LLDPD_WITH_EDP=y
  10 CONFIG_LLDPD_WITH_FDP=y
  11 CONFIG_LLDPD_WITH_LLDPMED=y
  12 CONFIG_LLDPD_WITH_SNMP=y
  13 CONFIG_LLDPD_WITH_SONMP=y
  14
  15 USE_PROCD=1
  16 LLDPDBIN=/usr/sbin/lldpd
  17 LLDPCLI=/usr/sbin/lldpcli
  18 LLDPSOCKET=/var/run/lldpd.socket
  19 LLDPD_CONF=/tmp/lldpd.conf
  20 LLDPD_CONFS_DIR=/tmp/lldpd.d
  21
  22 LLDPD_RUN=/var/run/lldpd
  23 LLDPD_RESTART_HASH=${LLDPD_RUN}/lldpd.restart_hash
  24
  25 . "$IPKG_INSTROOT/lib/functions/network.sh"
  26
  27 find_release_info()
  28 {
  29         [ -s /etc/os-release ] && . /etc/os-release
  30         [ -z "$PRETTY_NAME" ] && [ -s /etc/openwrt_version ] && \
  31                 PRETTY_NAME="$(cat /etc/openwrt_version)"
  32
  33         echo "${PRETTY_NAME:-Unknown OpenWrt release} @ $(cat /proc/sys/kernel/hostname)"
  34 }
  35
  36 get_config_restart_hash() {
  37         local var="$1"
  38         local _string _hash v
  39
  40         config_load 'lldpd'
  41
  42         config_get      v 'config' 'lldp_class'; append _string "$v" ","
  43         if [ "$CONFIG_LLDPD_WITH_SNMP" = "y" ]; then
  44                 config_get      v 'config' 'agentxsocket'; append _string "$v" ","
  45         fi
  46         config_get      v 'config' 'cid_interface'; append _string "$v" ","
  47         config_get      v 'config' 'filter'; append _string "$v" ","
  48         config_get_bool v 'config' 'readonly_mode'; append _string "$v" ","
  49         config_get_bool v 'config' 'lldp_no_version'; append _string "$v" ","
  50         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
  51                 config_get_bool v 'config' 'lldpmed_no_inventory'; append _string "$v" ","
  52         fi
  53         config_get_bool v 'config' 'enable_lldp' 1; append _string "$v" ","
  54         config_get_bool v 'config' 'force_lldp'; append _string "$v" ","
  55         if [ "$CONFIG_LLDPD_WITH_CDP" = "y" ]; then
  56                 config_get_bool v 'config' 'enable_cdp'; append _string "$v" ","
  57                 config_get      v 'config' 'cdp_version'; append _string "$v" ","
  58                 config_get_bool v 'config' 'force_cdp'; append _string "$v" ","
  59                 config_get_bool v 'config' 'force_cdpv2'; append _string "$v" ","
  60         fi
  61         if [ "$CONFIG_LLDPD_WITH_EDP" = "y" ]; then
  62                 config_get_bool v 'config' 'enable_edp'; append _string "$v" ","
  63                 config_get_bool v 'config' 'force_edp'; append _string "$v" ","
  64         fi
  65         if [ "$CONFIG_LLDPD_WITH_FDP" = "y" ]; then
  66                 config_get_bool v 'config' 'enable_fdp'; append _string "$v" ","
  67                 config_get_bool v 'config' 'force_fdp'; append _string "$v" ","
  68         fi
  69         if [ "$CONFIG_LLDPD_WITH_SONMP" = "y" ]; then
  70                 config_get_bool v 'config' 'enable_sonmp'; append _string "$v" ","
  71                 config_get_bool v 'config' 'force_sonmp'; append _string "$v" ","
  72         fi
  73
  74         _hash=$(echo -n "${_string}" | md5sum | awk '{ print $1 }')
  75         export -n "$var=$_hash"
  76 }
  77
  78 get_config_cid_ifaces() {
  79         local _ifaces
  80         config_get _ifaces 'config' "$2"
  81
  82         local _iface _ifnames=""
  83         for _iface in $_ifaces; do
  84                 local _ifname=""
  85                 if network_get_device _ifname "$_iface" || [ -e "/sys/class/net/$_iface" ]; then
  86                         append _ifnames "${_ifname:-$_iface}" ","
  87                 fi
  88         done
  89
  90         export -n "${1}=$_ifnames"
  91 }
  92
  93 write_lldpd_conf()
  94 {
  95         local lldp_description
  96
  97         config_load 'lldpd'
  98         config_get lldp_description 'config' 'lldp_description' "$(find_release_info)"
  99
 100         local lldp_hostname
 101         config_get lldp_hostname 'config' 'lldp_hostname' "$(cat /proc/sys/kernel/hostname)"
 102
 103         local ifnames
 104         get_config_cid_ifaces ifnames "interface"
 105
 106         local lldp_mgmt_ip
 107         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
 108
 109         # Configurable capabilities in lldpd >= v1.0.15
 110         local lldp_syscapabilities
 111         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
 112
 113         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 114                 local lldpmed_fast_start
 115                 config_get_bool lldpmed_fast_start 'config' 'lldpmed_fast_start' 0
 116
 117                 local lldpmed_fast_start_tx_interval
 118                 config_get lldpmed_fast_start_tx_interval 'config' 'lldpmed_fast_start_tx_interval' 0
 119
 120                 local lldp_location
 121                 config_get lldp_location 'config' 'lldp_location'
 122
 123                 local lldp_class
 124                 config_get lldp_class 'config' 'lldp_class'
 125
 126                 local lldp_policy
 127                 config_get lldp_policy 'config' 'lldp_policy'
 128
 129         fi
 130
 131         local lldp_agenttype
 132         config_get lldp_agenttype 'config' 'lldp_agenttype' 'nearest-bridge'
 133
 134         local lldp_portidsubtype
 135         config_get lldp_portidsubtype 'config' 'lldp_portidsubtype' 'macaddress'
 136
 137         local lldp_platform
 138         config_get lldp_platform 'config' 'lldp_platform' ""
 139
 140         local lldp_tx_interval
 141         config_get lldp_tx_interval 'config' 'lldp_tx_interval' 0
 142
 143         local lldp_tx_hold
 144         config_get lldp_tx_hold 'config' 'lldp_tx_hold' 0
 145
 146         # Clear out the config file first
 147         echo -n > "$LLDPD_CONF"
 148         [ -n "$ifnames" ] && echo "configure system interface pattern $ifnames" >> "$LLDPD_CONF"
 149         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
 150         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
 151         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
 152         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled $lldp_syscapabilities" >> "$LLDPD_CONF"
 153         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ] && [ "$lldpmed_fast_start" -gt 0 ]; then
 154                 if [ "$lldpmed_fast_start_tx_interval" -gt 0 ]; then
 155                         echo "configure med fast-start tx-interval $lldpmed_fast_start_tx_interval" >> "$LLDPD_CONF"
 156                 else
 157                         echo "configure med fast-start enable" >> "$LLDPD_CONF"
 158                 fi
 159         fi
 160         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 161                 # other 'configure med xxx' statements go here
 162
 163                 [ -n "$lldp_location" ] && echo "configure med location" "$lldp_location" >> "$LLDPD_CONF"
 164
 165                 # Manual states that if Class (-M) is 2 or 3, at least one network policy must be defined
 166                 case "$lldp_class" in
 167                         2 | 3 ) [ -n "$lldp_policy" ] && echo "configure med policy $lldp_policy" >> "$LLDPD_CONF"
 168                         ;;
 169                 esac
 170
 171         fi
 172
 173         [ -n "$lldp_agenttype" ] && echo "configure lldp agent-type" "\"$lldp_agenttype\"" >> "$LLDPD_CONF"
 174         [ -n "$lldp_portidsubtype" ] && echo "configure lldp portidsubtype" "\"$lldp_portidsubtype\"" >> "$LLDPD_CONF"
 175         [ -n "$lldp_platform" ] && echo "configure system platform" "\"$lldp_platform\"" >> "$LLDPD_CONF"
 176         [ -n "$lldp_tx_interval" ] && echo "configure lldp tx-interval $lldp_tx_interval" >> "$LLDPD_CONF"
 177         [ "$lldp_tx_hold" -gt 0 ] && echo "configure lldp tx-hold $lldp_tx_hold" >> "$LLDPD_CONF"
 178
 179         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
 180         [ -e "$LLDPD_CONFS_DIR" ] || ln -s /etc/lldpd.d "$LLDPD_CONFS_DIR"
 181 }
 182
 183 start_service() {
 184
 185         local enable_lldp
 186         local force_lldp
 187         local enable_cdp
 188         local cdp_version
 189         local force_cdp
 190         local force_cdpv2
 191         local enable_fdp
 192         local force_fdp
 193         local enable_sonmp
 194         local force_sonmp
 195         local enable_edp
 196         local force_edp
 197         local lldp_class
 198         local lldp_no_version
 199         local lldpmed_no_inventory
 200         local readonly_mode
 201         local agentxsocket
 202         local filter
 203
 204         config_load 'lldpd'
 205         config_get_bool enable_lldp 'config' 'enable_lldp' 1
 206         config_get_bool force_lldp 'config' 'force_lldp' 0
 207         if [ "$CONFIG_LLDPD_WITH_CDP" = "y" ]; then
 208                 config_get_bool enable_cdp 'config' 'enable_cdp' 0
 209                 config_get cdp_version 'config' 'cdp_version' 'cdpv1v2'
 210                 config_get_bool force_cdp 'config' 'force_cdp' 0
 211                 config_get_bool force_cdpv2 'config' 'force_cdpv2' 0
 212         fi
 213         if [ "$CONFIG_LLDPD_WITH_FDP" = "y" ]; then
 214                 config_get_bool enable_fdp 'config' 'enable_fdp' 0
 215                 config_get_bool force_fdp 'config' 'force_fdp' 0
 216         fi
 217         if [ "$CONFIG_LLDPD_WITH_SONMP" = "y" ]; then
 218                 config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
 219                 config_get_bool force_sonmp 'config' 'force_sonmp' 0
 220         fi
 221         if [ "$CONFIG_LLDPD_WITH_EDP" = "y" ]; then
 222                 config_get_bool enable_edp 'config' 'enable_edp' 0
 223                 config_get_bool force_edp 'config' 'force_edp' 0
 224         fi
 225         config_get lldp_class 'config' 'lldp_class'
 226         config_get_bool lldp_no_version 'config' 'lldp_no_version' 0
 227         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 228                 config_get_bool lldpmed_no_inventory 'config' 'lldpmed_no_inventory' 0
 229         fi
 230         config_get_bool readonly_mode 'config' 'readonly_mode' 0
 231         if [ "$CONFIG_LLDPD_WITH_SNMP" = "y" ]; then
 232                 config_get agentxsocket 'config' 'agentxsocket'
 233         fi
 234         config_get filter 'config' 'filter' 15
 235
 236         mkdir -p ${LLDPD_RUN}
 237         chown lldp:lldp ${LLDPD_RUN}
 238
 239         # When lldpd starts, it also loads up what we write in this config file
 240         write_lldpd_conf
 241
 242         procd_open_instance
 243         procd_set_param command ${LLDPDBIN}
 244         procd_append_param command -d
 245
 246         if [ "$enable_lldp" -gt 0 ]; then
 247                 if [ "$force_lldp" -gt 0 ]; then
 248                         procd_append_param command '-l'
 249                 fi
 250         else
 251                 # Disable LLDP
 252                 procd_append_param command '-ll'
 253         fi
 254
 255         if [ "$CONFIG_LLDPD_WITH_CDP" = "y" ] && [ "$enable_cdp" -gt 0 ]; then
 256                 if [ "$cdp_version" = "cdpv2" ]; then
 257                         if [ "$force_cdp" -gt 0 ]; then
 258                                 # CDPv1 disabled, CDPv2 forced
 259                                 procd_append_param command '-ccccc'
 260                         else
 261                                 # CDPv1 disabled, CDPv2 enabled
 262                                 procd_append_param command '-cccc'
 263                         fi
 264                 elif [ "$cdp_version" = "cdpv1v2" ]; then
 265                         if [ "$force_cdp" -gt 0 ] && [ "$force_cdpv2" -gt 0 ]; then
 266                                 # CDPv1 enabled, CDPv2 forced
 267                                 procd_append_param command '-ccc'
 268                         elif [ "$force_cdp" -gt 0 ]; then
 269                                 # CDPv1 forced, CDPv2 enabled
 270                                 procd_append_param command '-cc'
 271                         else
 272                                 # CDPv1 and CDPv2 enabled
 273                                 procd_append_param command '-c'
 274                         fi
 275                 fi
 276         fi
 277
 278         if [ "$CONFIG_LLDPD_WITH_FDP" = "y" ] && [ "$enable_fdp" -gt 0 ]; then
 279                 if [ "$force_fdp" -gt 0 ]; then
 280                         # FDP enabled and forced
 281                         procd_append_param command '-ff'
 282                 else
 283                         # FDP enabled
 284                         procd_append_param command '-f'
 285                 fi
 286         fi
 287
 288         if [ "$CONFIG_LLDPD_WITH_SONMP" = "y" ] && [ "$enable_sonmp" -gt 0 ]; then
 289                 if [ "$force_sonmp" -gt 0 ]; then
 290                         # SONMP enabled and forced
 291                         procd_append_param command '-ss'
 292                 else
 293                         # SONMP enabled
 294                         procd_append_param command '-s'
 295                 fi
 296         fi
 297
 298         if [ "$CONFIG_LLDPD_WITH_EDP" = "y" ] && [ "$enable_edp" -gt 0 ]; then
 299                 if [ "$force_edp" -gt 0 ]; then
 300                         # EDP enabled and forced
 301                         procd_append_param command '-ee'
 302                 else
 303                         # EDP enabled
 304                         procd_append_param command '-e'
 305                 fi
 306         fi
 307
 308         [ "$readonly_mode" -gt 0 ] && procd_append_param command '-r'
 309         [ "$lldp_no_version" -gt 0 ] && procd_append_param command '-k'
 310         [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ] && [ "$lldpmed_no_inventory" -gt 0 ] && procd_append_param command '-i'
 311         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 312         [ "$CONFIG_LLDPD_WITH_SNMP" = "y" ] && [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 313         [ -n "$filter" ] && procd_append_param command -H "$filter"
 314
 315     # ChassisID interfaces
 316         local ifnames
 317         get_config_cid_ifaces ifnames "cid_interface"
 318
 319         [ -n "$ifnames" ] && procd_append_param command -C "$ifnames"
 320
 321     # Overwrite default configuration locations processed by lldpcli at start
 322         procd_append_param command -O "$LLDPD_CONF"
 323
 324         local restart_hash
 325         get_config_restart_hash restart_hash
 326         echo -n "$restart_hash" > "$LLDPD_RESTART_HASH"
 327
 328         # set auto respawn behavior
 329         procd_set_param respawn
 330         procd_close_instance
 331 }
 332
 333 service_triggers() {
 334         procd_add_config_trigger "config.change" "lldpd" /etc/init.d/lldpd reload
 335 }
 336
 337 reload_service() {
 338         running || return 1
 339
 340         local running_hash=""
 341         local config_hash=""
 342
 343         get_config_restart_hash config_hash
 344         [ -f ${LLDPD_RESTART_HASH} ] && running_hash=$(cat "$LLDPD_RESTART_HASH")
 345
 346         if [ "x$running_hash" != "x$config_hash" ]; then
 347                 # Restart LLDPd
 348                 # Some parameters can't be configured at runtime
 349                 restart
 350                 return 0
 351         fi
 352
 353         $LLDPCLI -u "$LLDPSOCKET" >/dev/null 2>&1 <<-EOF
 354                 pause
 355                 unconfigure lldp custom-tlv
 356                 unconfigure system interface pattern
 357                 unconfigure system description
 358                 unconfigure system hostname
 359                 unconfigure system ip management pattern
 360                 unconfigure system platform
 361         EOF
 362         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 363                 $LLDPCLI -u "$LLDPSOCKET" >/dev/null 2>&1 <<-EOF
 364                         unconfigure med fast-start
 365                 EOF
 366
 367         fi
 368         # Rewrite lldpd.conf
 369         # If something changed it should be included by the lldpcli call
 370         write_lldpd_conf
 371         $LLDPCLI -u "$LLDPSOCKET" -c "$LLDPD_CONF" -c "$LLDPD_CONFS_DIR" >/dev/null 2>&1
 372         # Broadcast update over the wire
 373         $LLDPCLI -u "$LLDPSOCKET" >/dev/null 2>&1 <<-EOF
 374                 resume
 375                 update
 376         EOF
 377         return 0
 378 }
 379
 380 stop_service() {
 381         rm -rf ${LLDPD_RUN} "$LLDPSOCKET" >/dev/null 2>&1
 382 }
 383