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' "$(cat /proc/sys/kernel/hostname)"
 102
 103         local ifnames
 104         get_config_cid_ifaces ifnames "interface"
 105
 106         local lldp_mgmt_ip
 107         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
 108
 109         local lldp_syscapabilities
 110         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
 111
 112         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 113                 local lldpmed_fast_start
 114                 config_get_bool lldpmed_fast_start 'config' 'lldpmed_fast_start' 0
 115
 116                 local lldpmed_fast_start_tx_interval
 117                 config_get lldpmed_fast_start_tx_interval 'config' 'lldpmed_fast_start_tx_interval' 0
 118
 119                 local lldp_location
 120                 config_get lldp_location 'config' 'lldp_location'
 121
 122                 local lldp_class
 123                 config_get lldp_class 'config' 'lldp_class'
 124
 125                 local lldp_policy
 126                 config_get lldp_policy 'config' 'lldp_policy'
 127
 128         fi
 129
 130         local lldp_agenttype
 131         config_get lldp_agenttype 'config' 'lldp_agenttype' 'nearest-bridge'
 132
 133         local lldp_portidsubtype
 134         config_get lldp_portidsubtype 'config' 'lldp_portidsubtype' 'macaddress'
 135
 136         local lldp_platform
 137         config_get lldp_platform 'config' 'lldp_platform' ""
 138
 139         local lldp_tx_interval
 140         config_get lldp_tx_interval 'config' 'lldp_tx_interval' 0
 141
 142         local lldp_tx_hold
 143         config_get lldp_tx_hold 'config' 'lldp_tx_hold' 0
 144
 145         # Clear out the config file first
 146         echo -n > "$LLDPD_CONF"
 147         [ -n "$ifnames" ] && echo "configure system interface pattern $ifnames" >> "$LLDPD_CONF"
 148         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
 149         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
 150         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
 151         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled $lldp_syscapabilities" >> "$LLDPD_CONF"
 152         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ] && [ "$lldpmed_fast_start" -gt 0 ]; then
 153                 if [ "$lldpmed_fast_start_tx_interval" -gt 0 ]; then
 154                         echo "configure med fast-start tx-interval $lldpmed_fast_start_tx_interval" >> "$LLDPD_CONF"
 155                 else
 156                         echo "configure med fast-start enable" >> "$LLDPD_CONF"
 157                 fi
 158         fi
 159         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 160                 # other 'configure med xxx' statements go here
 161
 162                 [ -n "$lldp_location" ] && echo "configure med location" "$lldp_location" >> "$LLDPD_CONF"
 163
 164                 # Manual states that if Class (-M) is 2 or 3, at least one network policy must be defined
 165                 case "$lldp_class" in
 166                         2 | 3 ) [ -n "$lldp_policy" ] && echo "configure med policy $lldp_policy" >> "$LLDPD_CONF"
 167                         ;;
 168                 esac
 169
 170         fi
 171
 172         [ -n "$lldp_agenttype" ] && echo "configure lldp agent-type" "\"$lldp_agenttype\"" >> "$LLDPD_CONF"
 173         [ -n "$lldp_portidsubtype" ] && echo "configure lldp portidsubtype" "\"$lldp_portidsubtype\"" >> "$LLDPD_CONF"
 174         [ -n "$lldp_platform" ] && echo "configure system platform" "\"$lldp_platform\"" >> "$LLDPD_CONF"
 175         [ -n "$lldp_tx_interval" ] && echo "configure lldp tx-interval $lldp_tx_interval" >> "$LLDPD_CONF"
 176         [ "$lldp_tx_hold" -gt 0 ] && echo "configure lldp tx-hold $lldp_tx_hold" >> "$LLDPD_CONF"
 177
 178         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
 179         [ -e "$LLDPD_CONFS_DIR" ] || ln -s /etc/lldpd.d "$LLDPD_CONFS_DIR"
 180 }
 181
 182 start_service() {
 183
 184         local enable_lldp
 185         local force_lldp
 186         local enable_cdp
 187         local cdp_version
 188         local force_cdp
 189         local force_cdpv2
 190         local enable_fdp
 191         local force_fdp
 192         local enable_sonmp
 193         local force_sonmp
 194         local enable_edp
 195         local force_edp
 196         local lldp_class
 197         local lldp_no_version
 198         local lldpmed_no_inventory
 199         local readonly_mode
 200         local agentxsocket
 201         local filter
 202
 203         config_load 'lldpd'
 204         config_get_bool enable_lldp 'config' 'enable_lldp' 1
 205         config_get_bool force_lldp 'config' 'force_lldp' 0
 206         if [ "$CONFIG_LLDPD_WITH_CDP" = "y" ]; then
 207                 config_get_bool enable_cdp 'config' 'enable_cdp' 0
 208                 config_get cdp_version 'config' 'cdp_version' 'cdpv1v2'
 209                 config_get_bool force_cdp 'config' 'force_cdp' 0
 210                 config_get_bool force_cdpv2 'config' 'force_cdpv2' 0
 211         fi
 212         if [ "$CONFIG_LLDPD_WITH_FDP" = "y" ]; then
 213                 config_get_bool enable_fdp 'config' 'enable_fdp' 0
 214                 config_get_bool force_fdp 'config' 'force_fdp' 0
 215         fi
 216         if [ "$CONFIG_LLDPD_WITH_SONMP" = "y" ]; then
 217                 config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
 218                 config_get_bool force_sonmp 'config' 'force_sonmp' 0
 219         fi
 220         if [ "$CONFIG_LLDPD_WITH_EDP" = "y" ]; then
 221                 config_get_bool enable_edp 'config' 'enable_edp' 0
 222                 config_get_bool force_edp 'config' 'force_edp' 0
 223         fi
 224         config_get lldp_class 'config' 'lldp_class'
 225         config_get_bool lldp_no_version 'config' 'lldp_no_version' 0
 226         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 227                 config_get_bool lldpmed_no_inventory 'config' 'lldpmed_no_inventory' 0
 228         fi
 229         config_get_bool readonly_mode 'config' 'readonly_mode' 0
 230         if [ "$CONFIG_LLDPD_WITH_SNMP" = "y" ]; then
 231                 config_get agentxsocket 'config' 'agentxsocket'
 232         fi
 233         config_get filter 'config' 'filter' 15
 234
 235         mkdir -p ${LLDPD_RUN}
 236         chown lldp:lldp ${LLDPD_RUN}
 237
 238         # When lldpd starts, it also loads up what we write in this config file
 239         write_lldpd_conf
 240
 241         procd_open_instance
 242         procd_set_param command ${LLDPDBIN}
 243         procd_append_param command -d
 244
 245         if [ "$enable_lldp" -gt 0 ]; then
 246                 if [ "$force_lldp" -gt 0 ]; then
 247                         procd_append_param command '-l'
 248                 fi
 249         else
 250                 # Disable LLDP
 251                 procd_append_param command '-ll'
 252         fi
 253
 254         if [ "$CONFIG_LLDPD_WITH_CDP" = "y" ] && [ "$enable_cdp" -gt 0 ]; then
 255                 if [ "$cdp_version" = "cdpv2" ]; then
 256                         if [ "$force_cdp" -gt 0 ]; then
 257                                 # CDPv1 disabled, CDPv2 forced
 258                                 procd_append_param command '-ccccc'
 259                         else
 260                                 # CDPv1 disabled, CDPv2 enabled
 261                                 procd_append_param command '-cccc'
 262                         fi
 263                 elif [ "$cdp_version" = "cdpv1v2" ]; then
 264                         if [ "$force_cdp" -gt 0 ] && [ "$force_cdpv2" -gt 0 ]; then
 265                                 # CDPv1 enabled, CDPv2 forced
 266                                 procd_append_param command '-ccc'
 267                         elif [ "$force_cdp" -gt 0 ]; then
 268                                 # CDPv1 forced, CDPv2 enabled
 269                                 procd_append_param command '-cc'
 270                         else
 271                                 # CDPv1 and CDPv2 enabled
 272                                 procd_append_param command '-c'
 273                         fi
 274                 fi
 275         fi
 276
 277         if [ "$CONFIG_LLDPD_WITH_FDP" = "y" ] && [ "$enable_fdp" -gt 0 ]; then
 278                 if [ "$force_fdp" -gt 0 ]; then
 279                         # FDP enabled and forced
 280                         procd_append_param command '-ff'
 281                 else
 282                         # FDP enabled
 283                         procd_append_param command '-f'
 284                 fi
 285         fi
 286
 287         if [ "$CONFIG_LLDPD_WITH_SONMP" = "y" ] && [ "$enable_sonmp" -gt 0 ]; then
 288                 if [ "$force_sonmp" -gt 0 ]; then
 289                         # SONMP enabled and forced
 290                         procd_append_param command '-ss'
 291                 else
 292                         # SONMP enabled
 293                         procd_append_param command '-s'
 294                 fi
 295         fi
 296
 297         if [ "$CONFIG_LLDPD_WITH_EDP" = "y" ] && [ "$enable_edp" -gt 0 ]; then
 298                 if [ "$force_edp" -gt 0 ]; then
 299                         # EDP enabled and forced
 300                         procd_append_param command '-ee'
 301                 else
 302                         # EDP enabled
 303                         procd_append_param command '-e'
 304                 fi
 305         fi
 306
 307         [ "$readonly_mode" -gt 0 ] && procd_append_param command '-r'
 308         [ "$lldp_no_version" -gt 0 ] && procd_append_param command '-k'
 309         [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ] && [ "$lldpmed_no_inventory" -gt 0 ] && procd_append_param command '-i'
 310         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 311         [ "$CONFIG_LLDPD_WITH_SNMP" = "y" ] && [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 312         [ -n "$filter" ] && procd_append_param command -H "$filter"
 313
 314     # ChassisID interfaces
 315         local ifnames
 316         get_config_cid_ifaces ifnames "cid_interface"
 317
 318         [ -n "$ifnames" ] && procd_append_param command -C "$ifnames"
 319
 320     # Overwrite default configuration locations processed by lldpcli at start
 321         procd_append_param command -O "$LLDPD_CONF"
 322
 323         local restart_hash
 324         get_config_restart_hash restart_hash
 325         echo -n "$restart_hash" > "$LLDPD_RESTART_HASH"
 326
 327         # set auto respawn behavior
 328         procd_set_param respawn
 329         procd_close_instance
 330 }
 331
 332 service_triggers() {
 333         procd_add_config_trigger "config.change" "lldpd" /etc/init.d/lldpd reload
 334 }
 335
 336 reload_service() {
 337         running || return 1
 338
 339         local running_hash=""
 340         local config_hash=""
 341
 342         get_config_restart_hash config_hash
 343         [ -f ${LLDPD_RESTART_HASH} ] && running_hash=$(cat "$LLDPD_RESTART_HASH")
 344
 345         if [ "x$running_hash" != "x$config_hash" ]; then
 346                 # Restart LLDPd
 347                 # Some parameters can't be configured at runtime
 348                 restart
 349                 return 0
 350         fi
 351
 352         $LLDPCLI -u "$LLDPSOCKET" 2>&1 /dev/null <<-EOF
 353                 pause
 354                 unconfigure lldp custom-tlv
 355                 unconfigure system interface pattern
 356                 unconfigure system description
 357                 unconfigure system hostname
 358                 unconfigure system ip management pattern
 359                 unconfigure system platform
 360         EOF
 361         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 362                 $LLDPCLI -u "$LLDPSOCKET" 2>&1 /dev/null <<-EOF
 363                         unconfigure med fast-start
 364                 EOF
 365
 366         fi
 367         # Rewrite lldpd.conf
 368         # If something changed it should be included by the lldpcli call
 369         write_lldpd_conf
 370         $LLDPCLI -u "$LLDPSOCKET" -c "$LLDPD_CONF" -c "$LLDPD_CONFS_DIR" 2>&1 /dev/null
 371         # Broadcast update over the wire
 372         $LLDPCLI -u "$LLDPSOCKET" 2>&1 /dev/null <<-EOF
 373                 resume
 374                 update
 375         EOF
 376         return 0
 377 }
 378
 379 stop_service() {
 380         rm -rf ${LLDPD_RUN} "$LLDPSOCKET" 2> /dev/null
 381 }
 382