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' "$(cat /proc/sys/kernel/hostname)"
 102
 103         local ifnames
 104         get_config_cid_ifaces ifnames "interface"
 105
 106         local lldp_mgmt_ip
 107         config_get lldp_mgmt_ip 'config' 'lldp_mgmt_ip'
 108
 109         # Configurable capabilities in lldpd >= v1.0.15
 110         local lldp_syscapabilities
 111         config_get lldp_syscapabilities 'config' 'lldp_syscapabilities'
 112
 113         # Configurable capabilities in lldpd >= v1.0.15
 114         local lldp_capability_advertisements
 115         config_get_bool lldp_capability_advertisements 'config' 'lldp_capability_advertisements' 0
 116
 117         # Broadcast management address in lldpd >= 0.7.15
 118         local lldp_mgmt_addr_advertisements
 119         config_get_bool lldp_mgmt_addr_advertisements 'config' 'lldp_mgmt_addr_advertisements' 0
 120
 121         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 122                 local lldpmed_fast_start
 123                 config_get_bool lldpmed_fast_start 'config' 'lldpmed_fast_start' 0
 124
 125                 local lldpmed_fast_start_tx_interval
 126                 config_get lldpmed_fast_start_tx_interval 'config' 'lldpmed_fast_start_tx_interval' 0
 127
 128                 local lldp_location
 129                 config_get lldp_location 'config' 'lldp_location'
 130
 131                 local lldp_class
 132                 config_get lldp_class 'config' 'lldp_class'
 133
 134                 local lldp_policy
 135                 config_get lldp_policy 'config' 'lldp_policy'
 136
 137         fi
 138
 139         local lldp_agenttype
 140         config_get lldp_agenttype 'config' 'lldp_agenttype' 'nearest-bridge'
 141
 142         local lldp_portidsubtype
 143         config_get lldp_portidsubtype 'config' 'lldp_portidsubtype' 'macaddress'
 144
 145         local lldp_platform
 146         config_get lldp_platform 'config' 'lldp_platform' ""
 147
 148         local lldp_tx_interval
 149         config_get lldp_tx_interval 'config' 'lldp_tx_interval' 0
 150
 151         local lldp_tx_hold
 152         config_get lldp_tx_hold 'config' 'lldp_tx_hold' 0
 153
 154         # Clear out the config file first
 155         echo -n > "$LLDPD_CONF"
 156         [ -n "$ifnames" ] && echo "configure system interface pattern $ifnames" >> "$LLDPD_CONF"
 157         [ -n "$lldp_description" ] && echo "configure system description" "\"$lldp_description\"" >> "$LLDPD_CONF"
 158         [ -n "$lldp_hostname" ] && echo "configure system hostname" "\"$lldp_hostname\"" >> "$LLDPD_CONF"
 159         [ -n "$lldp_mgmt_ip" ] && echo "configure system ip management pattern" "\"$lldp_mgmt_ip\"" >> "$LLDPD_CONF"
 160         [ -n "$lldp_syscapabilities" ] && echo "configure system capabilities enabled $lldp_syscapabilities" >> "$LLDPD_CONF"
 161
 162         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ] && [ "$lldpmed_fast_start" -gt 0 ]; then
 163                 if [ "$lldpmed_fast_start_tx_interval" -gt 0 ]; then
 164                         echo "configure med fast-start tx-interval $lldpmed_fast_start_tx_interval" >> "$LLDPD_CONF"
 165                 else
 166                         echo "configure med fast-start enable" >> "$LLDPD_CONF"
 167                 fi
 168         fi
 169         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 170                 # other 'configure med xxx' statements go here
 171
 172                 [ -n "$lldp_location" ] && echo "configure med location" "$lldp_location" >> "$LLDPD_CONF"
 173
 174                 # Manual states that if Class (-M) is 2 or 3, at least one network policy must be defined
 175                 case "$lldp_class" in
 176                         2 | 3 ) [ -n "$lldp_policy" ] && echo "configure med policy $lldp_policy" >> "$LLDPD_CONF"
 177                         ;;
 178                 esac
 179
 180         fi
 181
 182         [ -n "$lldp_agenttype" ] && echo "configure lldp agent-type" "\"$lldp_agenttype\"" >> "$LLDPD_CONF"
 183         [ -n "$lldp_portidsubtype" ] && echo "configure lldp portidsubtype" "\"$lldp_portidsubtype\"" >> "$LLDPD_CONF"
 184         [ -n "$lldp_platform" ] && echo "configure system platform" "\"$lldp_platform\"" >> "$LLDPD_CONF"
 185         [ -n "$lldp_tx_interval" ] && echo "configure lldp tx-interval $lldp_tx_interval" >> "$LLDPD_CONF"
 186         [ "$lldp_tx_hold" -gt 0 ] && echo "configure lldp tx-hold $lldp_tx_hold" >> "$LLDPD_CONF"
 187         [ "$lldp_capability_advertisements" -gt 0 ] && echo "configure lldp capabilities-advertisements" >> "$LLDPD_CONF"
 188         [ "$lldp_mgmt_addr_advertisements" -gt 0 ] && echo "configure lldp management-addresses-advertisements" >> "$LLDPD_CONF"
 189
 190         # Since lldpd's sysconfdir is /tmp, we'll symlink /etc/lldpd.d to /tmp/$LLDPD_CONFS_DIR
 191         [ -e "$LLDPD_CONFS_DIR" ] || ln -s /etc/lldpd.d "$LLDPD_CONFS_DIR"
 192 }
 193
 194 start_service() {
 195
 196         local enable_lldp
 197         local force_lldp
 198         local enable_cdp
 199         local cdp_version
 200         local force_cdp
 201         local force_cdpv2
 202         local enable_fdp
 203         local force_fdp
 204         local enable_sonmp
 205         local force_sonmp
 206         local enable_edp
 207         local force_edp
 208         local lldp_class
 209         local lldp_no_version
 210         local lldpmed_no_inventory
 211         local readonly_mode
 212         local agentxsocket
 213         local filter
 214
 215         config_load 'lldpd'
 216         config_get_bool enable_lldp 'config' 'enable_lldp' 1
 217         config_get_bool force_lldp 'config' 'force_lldp' 0
 218         if [ "$CONFIG_LLDPD_WITH_CDP" = "y" ]; then
 219                 config_get_bool enable_cdp 'config' 'enable_cdp' 0
 220                 config_get cdp_version 'config' 'cdp_version' 'cdpv1v2'
 221                 config_get_bool force_cdp 'config' 'force_cdp' 0
 222                 config_get_bool force_cdpv2 'config' 'force_cdpv2' 0
 223         fi
 224         if [ "$CONFIG_LLDPD_WITH_FDP" = "y" ]; then
 225                 config_get_bool enable_fdp 'config' 'enable_fdp' 0
 226                 config_get_bool force_fdp 'config' 'force_fdp' 0
 227         fi
 228         if [ "$CONFIG_LLDPD_WITH_SONMP" = "y" ]; then
 229                 config_get_bool enable_sonmp 'config' 'enable_sonmp' 0
 230                 config_get_bool force_sonmp 'config' 'force_sonmp' 0
 231         fi
 232         if [ "$CONFIG_LLDPD_WITH_EDP" = "y" ]; then
 233                 config_get_bool enable_edp 'config' 'enable_edp' 0
 234                 config_get_bool force_edp 'config' 'force_edp' 0
 235         fi
 236         config_get lldp_class 'config' 'lldp_class'
 237         config_get_bool lldp_no_version 'config' 'lldp_no_version' 0
 238         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 239                 config_get_bool lldpmed_no_inventory 'config' 'lldpmed_no_inventory' 0
 240         fi
 241         config_get_bool readonly_mode 'config' 'readonly_mode' 0
 242         if [ "$CONFIG_LLDPD_WITH_SNMP" = "y" ]; then
 243                 config_get agentxsocket 'config' 'agentxsocket'
 244         fi
 245         config_get filter 'config' 'filter' 15
 246
 247         mkdir -p ${LLDPD_RUN}
 248         chown lldp:lldp ${LLDPD_RUN}
 249
 250         # When lldpd starts, it also loads up what we write in this config file
 251         write_lldpd_conf
 252
 253         procd_open_instance
 254         procd_set_param command ${LLDPDBIN}
 255         procd_append_param command -d
 256
 257         if [ "$enable_lldp" -gt 0 ]; then
 258                 if [ "$force_lldp" -gt 0 ]; then
 259                         procd_append_param command '-l'
 260                 fi
 261         else
 262                 # Disable LLDP
 263                 procd_append_param command '-ll'
 264         fi
 265
 266         if [ "$CONFIG_LLDPD_WITH_CDP" = "y" ] && [ "$enable_cdp" -gt 0 ]; then
 267                 if [ "$cdp_version" = "cdpv2" ]; then
 268                         if [ "$force_cdp" -gt 0 ]; then
 269                                 # CDPv1 disabled, CDPv2 forced
 270                                 procd_append_param command '-ccccc'
 271                         else
 272                                 # CDPv1 disabled, CDPv2 enabled
 273                                 procd_append_param command '-cccc'
 274                         fi
 275                 elif [ "$cdp_version" = "cdpv1v2" ]; then
 276                         if [ "$force_cdp" -gt 0 ] && [ "$force_cdpv2" -gt 0 ]; then
 277                                 # CDPv1 enabled, CDPv2 forced
 278                                 procd_append_param command '-ccc'
 279                         elif [ "$force_cdp" -gt 0 ]; then
 280                                 # CDPv1 forced, CDPv2 enabled
 281                                 procd_append_param command '-cc'
 282                         else
 283                                 # CDPv1 and CDPv2 enabled
 284                                 procd_append_param command '-c'
 285                         fi
 286                 fi
 287         fi
 288
 289         if [ "$CONFIG_LLDPD_WITH_FDP" = "y" ] && [ "$enable_fdp" -gt 0 ]; then
 290                 if [ "$force_fdp" -gt 0 ]; then
 291                         # FDP enabled and forced
 292                         procd_append_param command '-ff'
 293                 else
 294                         # FDP enabled
 295                         procd_append_param command '-f'
 296                 fi
 297         fi
 298
 299         if [ "$CONFIG_LLDPD_WITH_SONMP" = "y" ] && [ "$enable_sonmp" -gt 0 ]; then
 300                 if [ "$force_sonmp" -gt 0 ]; then
 301                         # SONMP enabled and forced
 302                         procd_append_param command '-ss'
 303                 else
 304                         # SONMP enabled
 305                         procd_append_param command '-s'
 306                 fi
 307         fi
 308
 309         if [ "$CONFIG_LLDPD_WITH_EDP" = "y" ] && [ "$enable_edp" -gt 0 ]; then
 310                 if [ "$force_edp" -gt 0 ]; then
 311                         # EDP enabled and forced
 312                         procd_append_param command '-ee'
 313                 else
 314                         # EDP enabled
 315                         procd_append_param command '-e'
 316                 fi
 317         fi
 318
 319         [ "$readonly_mode" -gt 0 ] && procd_append_param command '-r'
 320         [ "$lldp_no_version" -gt 0 ] && procd_append_param command '-k'
 321         [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ] && [ "$lldpmed_no_inventory" -gt 0 ] && procd_append_param command '-i'
 322         [ -n "$lldp_class" ] && procd_append_param command -M "$lldp_class"
 323         [ "$CONFIG_LLDPD_WITH_SNMP" = "y" ] && [ -n "$agentxsocket" ] && procd_append_param command -x -X "$agentxsocket"
 324         [ -n "$filter" ] && procd_append_param command -H "$filter"
 325
 326     # ChassisID interfaces
 327         local ifnames
 328         get_config_cid_ifaces ifnames "cid_interface"
 329
 330         [ -n "$ifnames" ] && procd_append_param command -C "$ifnames"
 331
 332     # Overwrite default configuration locations processed by lldpcli at start
 333         procd_append_param command -O "$LLDPD_CONF"
 334
 335         local restart_hash
 336         get_config_restart_hash restart_hash
 337         echo -n "$restart_hash" > "$LLDPD_RESTART_HASH"
 338
 339         # set auto respawn behavior
 340         procd_set_param respawn
 341         procd_close_instance
 342 }
 343
 344 service_triggers() {
 345         procd_add_config_trigger "config.change" "lldpd" /etc/init.d/lldpd reload
 346 }
 347
 348 reload_service() {
 349         running || return 1
 350
 351         local running_hash=""
 352         local config_hash=""
 353
 354         get_config_restart_hash config_hash
 355         [ -f ${LLDPD_RESTART_HASH} ] && running_hash=$(cat "$LLDPD_RESTART_HASH")
 356
 357         if [ "x$running_hash" != "x$config_hash" ]; then
 358                 # Restart LLDPd
 359                 # Some parameters can't be configured at runtime
 360                 restart
 361                 return 0
 362         fi
 363
 364         $LLDPCLI -u "$LLDPSOCKET" >/dev/null 2>&1 <<-EOF
 365                 pause
 366                 unconfigure lldp custom-tlv
 367                 unconfigure lldp capabilities-advertisements
 368                 unconfigure lldp management-addresses-advertisements
 369                 unconfigure system interface pattern
 370                 unconfigure system description
 371                 unconfigure system hostname
 372                 unconfigure system ip management pattern
 373                 unconfigure system platform
 374         EOF
 375         if [ "$CONFIG_LLDPD_WITH_LLDPMED" = "y" ]; then
 376                 $LLDPCLI -u "$LLDPSOCKET" >/dev/null 2>&1 <<-EOF
 377                         unconfigure med fast-start
 378                 EOF
 379
 380         fi
 381         # Rewrite lldpd.conf
 382         # If something changed it should be included by the lldpcli call
 383         write_lldpd_conf
 384         $LLDPCLI -u "$LLDPSOCKET" -c "$LLDPD_CONF" -c "$LLDPD_CONFS_DIR" >/dev/null 2>&1
 385         # Broadcast update over the wire
 386         $LLDPCLI -u "$LLDPSOCKET" >/dev/null 2>&1 <<-EOF
 387                 resume
 388                 update
 389         EOF
 390         return 0
 391 }
 392
 393 stop_service() {
 394         rm -rf ${LLDPD_RUN} "$LLDPSOCKET" >/dev/null 2>&1
 395 }
 396