Kea Configuration File Syntax (BNF)

Kea consists of several daemons, each with its own configuration syntax. The following sections provide a complete syntax of all possible parameters, written in Backus-Naur Form (BNF). See this Wikipedia article on BNF for more information.

BNF Grammar for DHCPv4

This grammar is generated from dhcp4_parser.yy. See The DHCPv4 Server for more details.

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  Grammar

  $accept ::= start EOF

  start ::= TOPLEVEL_JSON sub_json

  start ::= TOPLEVEL_DHCP4 syntax_map

  start ::= SUB_DHCP4 sub_dhcp4

  start ::= SUB_INTERFACES4 sub_interfaces4

  start ::= SUB_SUBNET4 sub_subnet4

  start ::= SUB_POOL4 sub_pool4

  start ::= SUB_RESERVATION sub_reservation

  start ::= SUB_OPTION_DEFS sub_option_def_list

  start ::= SUB_OPTION_DEF sub_option_def

  start ::= SUB_OPTION_DATA sub_option_data

  start ::= SUB_HOOKS_LIBRARY sub_hooks_library

  start ::= SUB_DHCP_DDNS sub_dhcp_ddns

  start ::= SUB_CONFIG_CONTROL sub_config_control

  value ::= INTEGER
       | FLOAT
       | BOOLEAN
       | STRING
       | NULL
       | map2
       | list_generic

  sub_json ::= value

  map2 ::= "{" map_content "}"

  map_value ::= map2

  map_content ::=
             | not_empty_map

  not_empty_map ::= STRING ":" value
               | not_empty_map "," STRING ":" value
               | not_empty_map ","

  list_generic ::= "[" list_content "]"

  list_content ::=
              | not_empty_list

  not_empty_list ::= value
                | not_empty_list "," value
                | not_empty_list ","

  list_strings ::= "[" list_strings_content "]"

  list_strings_content ::=
                      | not_empty_list_strings

  not_empty_list_strings ::= STRING
                        | not_empty_list_strings "," STRING
                        | not_empty_list_strings ","

  unknown_map_entry ::= STRING ":"

  syntax_map ::= "{" global_object "}"

  global_object ::= "Dhcp4" ":" "{" global_params "}"
               | global_object_comma

  global_object_comma ::= global_object ","

  sub_dhcp4 ::= "{" global_params "}"

  global_params ::= global_param
               | global_params "," global_param
               | global_params ","

  global_param ::= valid_lifetime
              | min_valid_lifetime
              | max_valid_lifetime
              | renew_timer
              | rebind_timer
              | decline_probation_period
              | subnet4_list
              | shared_networks
              | interfaces_config
              | lease_database
              | hosts_database
              | hosts_databases
              | host_reservation_identifiers
              | client_classes
              | option_def_list
              | option_data_list
              | hooks_libraries
              | expired_leases_processing
              | dhcp4o6_port
              | control_socket
              | dhcp_queue_control
              | dhcp_ddns
              | echo_client_id
              | match_client_id
              | authoritative
              | next_server
              | server_hostname
              | boot_file_name
              | user_context
              | comment
              | sanity_checks
              | reservations
              | config_control
              | server_tag
              | reservation_mode
              | reservations_global
              | reservations_in_subnet
              | reservations_out_of_pool
              | calculate_tee_times
              | t1_percent
              | t2_percent
              | cache_threshold
              | cache_max_age
              | loggers
              | hostname_char_set
              | hostname_char_replacement
              | ddns_send_updates
              | ddns_override_no_update
              | ddns_override_client_update
              | ddns_replace_client_name
              | ddns_generated_prefix
              | ddns_qualifying_suffix
              | ddns_update_on_renew
              | ddns_use_conflict_resolution
              | store_extended_info
              | statistic_default_sample_count
              | statistic_default_sample_age
              | dhcp_multi_threading
              | early_global_reservations_lookup
              | ip_reservations_unique
              | reservations_lookup_first
              | compatibility
              | parked_packet_limit
              | unknown_map_entry

  valid_lifetime ::= "valid-lifetime" ":" INTEGER

  min_valid_lifetime ::= "min-valid-lifetime" ":" INTEGER

  max_valid_lifetime ::= "max-valid-lifetime" ":" INTEGER

  renew_timer ::= "renew-timer" ":" INTEGER

  rebind_timer ::= "rebind-timer" ":" INTEGER

  calculate_tee_times ::= "calculate-tee-times" ":" BOOLEAN

  t1_percent ::= "t1-percent" ":" FLOAT

  t2_percent ::= "t2-percent" ":" FLOAT

  cache_threshold ::= "cache-threshold" ":" FLOAT

  cache_max_age ::= "cache-max-age" ":" INTEGER

  decline_probation_period ::= "decline-probation-period" ":" INTEGER

  server_tag ::= "server-tag" ":" STRING

  parked_packet_limit ::= "parked-packet-limit" ":" INTEGER

  echo_client_id ::= "echo-client-id" ":" BOOLEAN

  match_client_id ::= "match-client-id" ":" BOOLEAN

  authoritative ::= "authoritative" ":" BOOLEAN

  ddns_send_updates ::= "ddns-send-updates" ":" BOOLEAN

  ddns_override_no_update ::= "ddns-override-no-update" ":" BOOLEAN

  ddns_override_client_update ::= "ddns-override-client-update" ":" BOOLEAN

  ddns_replace_client_name ::= "ddns-replace-client-name" ":" ddns_replace_client_name_value

  ddns_replace_client_name_value ::= "when-present"
                                | "never"
                                | "always"
                                | "when-not-present"
                                | BOOLEAN

  ddns_generated_prefix ::= "ddns-generated-prefix" ":" STRING

  ddns_qualifying_suffix ::= "ddns-qualifying-suffix" ":" STRING

  ddns_update_on_renew ::= "ddns-update-on-renew" ":" BOOLEAN

  ddns_use_conflict_resolution ::= "ddns-use-conflict-resolution" ":" BOOLEAN

  hostname_char_set ::= "hostname-char-set" ":" STRING

  hostname_char_replacement ::= "hostname-char-replacement" ":" STRING

  store_extended_info ::= "store-extended-info" ":" BOOLEAN

  statistic_default_sample_count ::= "statistic-default-sample-count" ":" INTEGER

  statistic_default_sample_age ::= "statistic-default-sample-age" ":" INTEGER

  early_global_reservations_lookup ::= "early-global-reservations-lookup" ":" BOOLEAN

  ip_reservations_unique ::= "ip-reservations-unique" ":" BOOLEAN

  reservations_lookup_first ::= "reservations-lookup-first" ":" BOOLEAN

  interfaces_config ::= "interfaces-config" ":" "{" interfaces_config_params "}"

  interfaces_config_params ::= interfaces_config_param
                          | interfaces_config_params "," interfaces_config_param
                          | interfaces_config_params ","

  interfaces_config_param ::= interfaces_list
                         | dhcp_socket_type
                         | outbound_interface
                         | re_detect
                         | service_sockets_require_all
                         | service_sockets_retry_wait_time
                         | service_sockets_max_retries
                         | user_context
                         | comment
                         | unknown_map_entry

  sub_interfaces4 ::= "{" interfaces_config_params "}"

  interfaces_list ::= "interfaces" ":" list_strings

  dhcp_socket_type ::= "dhcp-socket-type" ":" socket_type

  socket_type ::= "raw"
             | "udp"

  outbound_interface ::= "outbound-interface" ":" outbound_interface_value

  outbound_interface_value ::= "same-as-inbound"
                          | "use-routing"

  re_detect ::= "re-detect" ":" BOOLEAN

  service_sockets_require_all ::= "service-sockets-require-all" ":" BOOLEAN

  service_sockets_retry_wait_time ::= "service-sockets-retry-wait-time" ":" INTEGER

  service_sockets_max_retries ::= "service-sockets-max-retries" ":" INTEGER

  lease_database ::= "lease-database" ":" "{" database_map_params "}"

  sanity_checks ::= "sanity-checks" ":" "{" sanity_checks_params "}"

  sanity_checks_params ::= sanity_checks_param
                      | sanity_checks_params "," sanity_checks_param
                      | sanity_checks_params ","

  sanity_checks_param ::= lease_checks
                     | extended_info_checks

  lease_checks ::= "lease-checks" ":" STRING

  extended_info_checks ::= "extended-info-checks" ":" STRING

  hosts_database ::= "hosts-database" ":" "{" database_map_params "}"

  hosts_databases ::= "hosts-databases" ":" "[" database_list "]"

  database_list ::=
               | not_empty_database_list

  not_empty_database_list ::= database
                         | not_empty_database_list "," database
                         | not_empty_database_list ","

  database ::= "{" database_map_params "}"

  database_map_params ::= database_map_param
                     | database_map_params "," database_map_param
                     | database_map_params ","

  database_map_param ::= database_type
                    | user
                    | password
                    | host
                    | port
                    | name
                    | persist
                    | lfc_interval
                    | readonly
                    | connect_timeout
                    | max_reconnect_tries
                    | reconnect_wait_time
                    | on_fail
                    | max_row_errors
                    | trust_anchor
                    | cert_file
                    | key_file
                    | cipher_list
                    | unknown_map_entry

  database_type ::= "type" ":" db_type

  db_type ::= "memfile"
         | "mysql"
         | "postgresql"

  user ::= "user" ":" STRING

  password ::= "password" ":" STRING

  host ::= "host" ":" STRING

  port ::= "port" ":" INTEGER

  name ::= "name" ":" STRING

  persist ::= "persist" ":" BOOLEAN

  lfc_interval ::= "lfc-interval" ":" INTEGER

  readonly ::= "readonly" ":" BOOLEAN

  connect_timeout ::= "connect-timeout" ":" INTEGER

  max_reconnect_tries ::= "max-reconnect-tries" ":" INTEGER

  reconnect_wait_time ::= "reconnect-wait-time" ":" INTEGER

  on_fail ::= "on-fail" ":" on_fail_mode

  on_fail_mode ::= "stop-retry-exit"
              | "serve-retry-exit"
              | "serve-retry-continue"

  max_row_errors ::= "max-row-errors" ":" INTEGER

  trust_anchor ::= "trust-anchor" ":" STRING

  cert_file ::= "cert-file" ":" STRING

  key_file ::= "key-file" ":" STRING

  cipher_list ::= "cipher-list" ":" STRING

  host_reservation_identifiers ::= "host-reservation-identifiers" ":" "[" host_reservation_identifiers_list "]"

  host_reservation_identifiers_list ::= host_reservation_identifier
                                   | host_reservation_identifiers_list "," host_reservation_identifier
                                   | host_reservation_identifiers_list ","

  host_reservation_identifier ::= duid_id
                             | hw_address_id
                             | circuit_id
                             | client_id
                             | flex_id

  duid_id ::= "duid"

  hw_address_id ::= "hw-address"

  circuit_id ::= "circuit-id"

  client_id ::= "client-id"

  flex_id ::= "flex-id"

  dhcp_multi_threading ::= "multi-threading" ":" "{" multi_threading_params "}"

  multi_threading_params ::= multi_threading_param
                        | multi_threading_params "," multi_threading_param
                        | multi_threading_params ","

  multi_threading_param ::= enable_multi_threading
                       | thread_pool_size
                       | packet_queue_size
                       | user_context
                       | comment
                       | unknown_map_entry

  enable_multi_threading ::= "enable-multi-threading" ":" BOOLEAN

  thread_pool_size ::= "thread-pool-size" ":" INTEGER

  packet_queue_size ::= "packet-queue-size" ":" INTEGER

  hooks_libraries ::= "hooks-libraries" ":" "[" hooks_libraries_list "]"

  hooks_libraries_list ::=
                      | not_empty_hooks_libraries_list

  not_empty_hooks_libraries_list ::= hooks_library
                                | not_empty_hooks_libraries_list "," hooks_library
                                | not_empty_hooks_libraries_list ","

  hooks_library ::= "{" hooks_params "}"

  sub_hooks_library ::= "{" hooks_params "}"

  hooks_params ::= hooks_param
              | hooks_params "," hooks_param
              | hooks_params ","
              | unknown_map_entry

  hooks_param ::= library
             | parameters

  library ::= "library" ":" STRING

  parameters ::= "parameters" ":" map_value

  expired_leases_processing ::= "expired-leases-processing" ":" "{" expired_leases_params "}"

  expired_leases_params ::= expired_leases_param
                       | expired_leases_params "," expired_leases_param
                       | expired_leases_params ","

  expired_leases_param ::= reclaim_timer_wait_time
                      | flush_reclaimed_timer_wait_time
                      | hold_reclaimed_time
                      | max_reclaim_leases
                      | max_reclaim_time
                      | unwarned_reclaim_cycles

  reclaim_timer_wait_time ::= "reclaim-timer-wait-time" ":" INTEGER

  flush_reclaimed_timer_wait_time ::= "flush-reclaimed-timer-wait-time" ":" INTEGER

  hold_reclaimed_time ::= "hold-reclaimed-time" ":" INTEGER

  max_reclaim_leases ::= "max-reclaim-leases" ":" INTEGER

  max_reclaim_time ::= "max-reclaim-time" ":" INTEGER

  unwarned_reclaim_cycles ::= "unwarned-reclaim-cycles" ":" INTEGER

  subnet4_list ::= "subnet4" ":" "[" subnet4_list_content "]"

  subnet4_list_content ::=
                      | not_empty_subnet4_list

  not_empty_subnet4_list ::= subnet4
                        | not_empty_subnet4_list "," subnet4
                        | not_empty_subnet4_list ","

  subnet4 ::= "{" subnet4_params "}"

  sub_subnet4 ::= "{" subnet4_params "}"

  subnet4_params ::= subnet4_param
                | subnet4_params "," subnet4_param
                | subnet4_params ","

  subnet4_param ::= valid_lifetime
               | min_valid_lifetime
               | max_valid_lifetime
               | renew_timer
               | rebind_timer
               | option_data_list
               | pools_list
               | subnet
               | interface
               | id
               | client_class
               | require_client_classes
               | reservations
               | reservation_mode
               | reservations_global
               | reservations_in_subnet
               | reservations_out_of_pool
               | relay
               | match_client_id
               | authoritative
               | next_server
               | server_hostname
               | boot_file_name
               | subnet_4o6_interface
               | subnet_4o6_interface_id
               | subnet_4o6_subnet
               | user_context
               | comment
               | calculate_tee_times
               | t1_percent
               | t2_percent
               | cache_threshold
               | cache_max_age
               | ddns_send_updates
               | ddns_override_no_update
               | ddns_override_client_update
               | ddns_replace_client_name
               | ddns_generated_prefix
               | ddns_qualifying_suffix
               | ddns_update_on_renew
               | ddns_use_conflict_resolution
               | hostname_char_set
               | hostname_char_replacement
               | store_extended_info
               | unknown_map_entry

  subnet ::= "subnet" ":" STRING

  subnet_4o6_interface ::= "4o6-interface" ":" STRING

  subnet_4o6_interface_id ::= "4o6-interface-id" ":" STRING

  subnet_4o6_subnet ::= "4o6-subnet" ":" STRING

  interface ::= "interface" ":" STRING

  client_class ::= "client-class" ":" STRING

  require_client_classes ::= "require-client-classes" ":" list_strings

  reservations_global ::= "reservations-global" ":" BOOLEAN

  reservations_in_subnet ::= "reservations-in-subnet" ":" BOOLEAN

  reservations_out_of_pool ::= "reservations-out-of-pool" ":" BOOLEAN

  reservation_mode ::= "reservation-mode" ":" hr_mode

  hr_mode ::= "disabled"
         | "out-of-pool"
         | "global"
         | "all"

  id ::= "id" ":" INTEGER

  shared_networks ::= "shared-networks" ":" "[" shared_networks_content "]"

  shared_networks_content ::=
                         | shared_networks_list

  shared_networks_list ::= shared_network
                      | shared_networks_list "," shared_network
                      | shared_networks_list ","

  shared_network ::= "{" shared_network_params "}"

  shared_network_params ::= shared_network_param
                       | shared_network_params "," shared_network_param
                       | shared_network_params ","

  shared_network_param ::= name
                      | subnet4_list
                      | interface
                      | renew_timer
                      | rebind_timer
                      | option_data_list
                      | match_client_id
                      | authoritative
                      | next_server
                      | server_hostname
                      | boot_file_name
                      | relay
                      | reservation_mode
                      | reservations_global
                      | reservations_in_subnet
                      | reservations_out_of_pool
                      | client_class
                      | require_client_classes
                      | valid_lifetime
                      | min_valid_lifetime
                      | max_valid_lifetime
                      | user_context
                      | comment
                      | calculate_tee_times
                      | t1_percent
                      | t2_percent
                      | cache_threshold
                      | cache_max_age
                      | ddns_send_updates
                      | ddns_override_no_update
                      | ddns_override_client_update
                      | ddns_replace_client_name
                      | ddns_generated_prefix
                      | ddns_qualifying_suffix
                      | ddns_update_on_renew
                      | ddns_use_conflict_resolution
                      | hostname_char_set
                      | hostname_char_replacement
                      | store_extended_info
                      | unknown_map_entry

  option_def_list ::= "option-def" ":" "[" option_def_list_content "]"

  sub_option_def_list ::= "{" option_def_list "}"

  option_def_list_content ::=
                         | not_empty_option_def_list

  not_empty_option_def_list ::= option_def_entry
                           | not_empty_option_def_list "," option_def_entry
                           | not_empty_option_def_list ","

  option_def_entry ::= "{" option_def_params "}"

  sub_option_def ::= "{" option_def_params "}"

  option_def_params ::=
                   | not_empty_option_def_params

  not_empty_option_def_params ::= option_def_param
                             | not_empty_option_def_params "," option_def_param
                             | not_empty_option_def_params ","

  option_def_param ::= option_def_name
                  | option_def_code
                  | option_def_type
                  | option_def_record_types
                  | option_def_space
                  | option_def_encapsulate
                  | option_def_array
                  | user_context
                  | comment
                  | unknown_map_entry

  option_def_name ::= name

  code ::= "code" ":" INTEGER

  option_def_code ::= code

  option_def_type ::= "type" ":" STRING

  option_def_record_types ::= "record-types" ":" STRING

  space ::= "space" ":" STRING

  option_def_space ::= space

  option_def_encapsulate ::= "encapsulate" ":" STRING

  option_def_array ::= "array" ":" BOOLEAN

  option_data_list ::= "option-data" ":" "[" option_data_list_content "]"

  option_data_list_content ::=
                          | not_empty_option_data_list

  not_empty_option_data_list ::= option_data_entry
                            | not_empty_option_data_list "," option_data_entry
                            | not_empty_option_data_list ","

  option_data_entry ::= "{" option_data_params "}"

  sub_option_data ::= "{" option_data_params "}"

  option_data_params ::=
                    | not_empty_option_data_params

  not_empty_option_data_params ::= option_data_param
                              | not_empty_option_data_params "," option_data_param
                              | not_empty_option_data_params ","

  option_data_param ::= option_data_name
                   | option_data_data
                   | option_data_code
                   | option_data_space
                   | option_data_csv_format
                   | option_data_always_send
                   | user_context
                   | comment
                   | unknown_map_entry

  option_data_name ::= name

  option_data_data ::= "data" ":" STRING

  option_data_code ::= code

  option_data_space ::= space

  option_data_csv_format ::= "csv-format" ":" BOOLEAN

  option_data_always_send ::= "always-send" ":" BOOLEAN

  pools_list ::= "pools" ":" "[" pools_list_content "]"

  pools_list_content ::=
                    | not_empty_pools_list

  not_empty_pools_list ::= pool_list_entry
                      | not_empty_pools_list "," pool_list_entry
                      | not_empty_pools_list ","

  pool_list_entry ::= "{" pool_params "}"

  sub_pool4 ::= "{" pool_params "}"

  pool_params ::= pool_param
             | pool_params "," pool_param
             | pool_params ","

  pool_param ::= pool_entry
            | option_data_list
            | client_class
            | require_client_classes
            | user_context
            | comment
            | unknown_map_entry

  pool_entry ::= "pool" ":" STRING

  user_context ::= "user-context" ":" map_value

  comment ::= "comment" ":" STRING

  reservations ::= "reservations" ":" "[" reservations_list "]"

  reservations_list ::=
                   | not_empty_reservations_list

  not_empty_reservations_list ::= reservation
                             | not_empty_reservations_list "," reservation
                             | not_empty_reservations_list ","

  reservation ::= "{" reservation_params "}"

  sub_reservation ::= "{" reservation_params "}"

  reservation_params ::=
                    | not_empty_reservation_params

  not_empty_reservation_params ::= reservation_param
                              | not_empty_reservation_params "," reservation_param
                              | not_empty_reservation_params ","

  reservation_param ::= duid
                   | reservation_client_classes
                   | client_id_value
                   | circuit_id_value
                   | flex_id_value
                   | ip_address
                   | hw_address
                   | hostname
                   | option_data_list
                   | next_server
                   | server_hostname
                   | boot_file_name
                   | user_context
                   | comment
                   | unknown_map_entry

  next_server ::= "next-server" ":" STRING

  server_hostname ::= "server-hostname" ":" STRING

  boot_file_name ::= "boot-file-name" ":" STRING

  ip_address ::= "ip-address" ":" STRING

  ip_addresses ::= "ip-addresses" ":" list_strings

  duid ::= "duid" ":" STRING

  hw_address ::= "hw-address" ":" STRING

  client_id_value ::= "client-id" ":" STRING

  circuit_id_value ::= "circuit-id" ":" STRING

  flex_id_value ::= "flex-id" ":" STRING

  hostname ::= "hostname" ":" STRING

  reservation_client_classes ::= "client-classes" ":" list_strings

  relay ::= "relay" ":" "{" relay_map "}"

  relay_map ::= ip_address
           | ip_addresses

  client_classes ::= "client-classes" ":" "[" client_classes_list "]"

  client_classes_list ::= client_class_entry
                     | client_classes_list "," client_class_entry
                     | client_classes_list ","

  client_class_entry ::= "{" client_class_params "}"

  client_class_params ::=
                     | not_empty_client_class_params

  not_empty_client_class_params ::= client_class_param
                               | not_empty_client_class_params "," client_class_param
                               | not_empty_client_class_params ","

  client_class_param ::= client_class_name
                    | client_class_test
                    | client_class_template_test
                    | only_if_required
                    | option_def_list
                    | option_data_list
                    | next_server
                    | server_hostname
                    | boot_file_name
                    | user_context
                    | comment
                    | unknown_map_entry
                    | valid_lifetime
                    | min_valid_lifetime
                    | max_valid_lifetime

  client_class_name ::= name

  client_class_test ::= "test" ":" STRING

  client_class_template_test ::= "template-test" ":" STRING

  only_if_required ::= "only-if-required" ":" BOOLEAN

  dhcp4o6_port ::= "dhcp4o6-port" ":" INTEGER

  control_socket ::= "control-socket" ":" "{" control_socket_params "}"

  control_socket_params ::= control_socket_param
                       | control_socket_params "," control_socket_param
                       | control_socket_params ","

  control_socket_param ::= control_socket_type
                      | control_socket_name
                      | user_context
                      | comment
                      | unknown_map_entry

  control_socket_type ::= "socket-type" ":" STRING

  control_socket_name ::= "socket-name" ":" STRING

  dhcp_queue_control ::= "dhcp-queue-control" ":" "{" queue_control_params "}"

  queue_control_params ::= queue_control_param
                      | queue_control_params "," queue_control_param
                      | queue_control_params ","

  queue_control_param ::= enable_queue
                     | queue_type
                     | capacity
                     | user_context
                     | comment
                     | arbitrary_map_entry

  enable_queue ::= "enable-queue" ":" BOOLEAN

  queue_type ::= "queue-type" ":" STRING

  capacity ::= "capacity" ":" INTEGER

  arbitrary_map_entry ::= STRING ":" value

  dhcp_ddns ::= "dhcp-ddns" ":" "{" dhcp_ddns_params "}"

  sub_dhcp_ddns ::= "{" dhcp_ddns_params "}"

  dhcp_ddns_params ::= dhcp_ddns_param
                  | dhcp_ddns_params "," dhcp_ddns_param
                  | dhcp_ddns_params ","

  dhcp_ddns_param ::= enable_updates
                 | server_ip
                 | server_port
                 | sender_ip
                 | sender_port
                 | max_queue_size
                 | ncr_protocol
                 | ncr_format
                 | dep_override_no_update
                 | dep_override_client_update
                 | dep_replace_client_name
                 | dep_generated_prefix
                 | dep_qualifying_suffix
                 | dep_hostname_char_set
                 | dep_hostname_char_replacement
                 | user_context
                 | comment
                 | unknown_map_entry

  enable_updates ::= "enable-updates" ":" BOOLEAN

  server_ip ::= "server-ip" ":" STRING

  server_port ::= "server-port" ":" INTEGER

  sender_ip ::= "sender-ip" ":" STRING

  sender_port ::= "sender-port" ":" INTEGER

  max_queue_size ::= "max-queue-size" ":" INTEGER

  ncr_protocol ::= "ncr-protocol" ":" ncr_protocol_value

  ncr_protocol_value ::= "udp"
                    | "tcp"

  ncr_format ::= "ncr-format" ":" "JSON"

  dep_qualifying_suffix ::= "qualifying-suffix" ":" STRING

  dep_override_no_update ::= "override-no-update" ":" BOOLEAN

  dep_override_client_update ::= "override-client-update" ":" BOOLEAN

  dep_replace_client_name ::= "replace-client-name" ":" ddns_replace_client_name_value

  dep_generated_prefix ::= "generated-prefix" ":" STRING

  dep_hostname_char_set ::= "hostname-char-set" ":" STRING

  dep_hostname_char_replacement ::= "hostname-char-replacement" ":" STRING

  config_control ::= "config-control" ":" "{" config_control_params "}"

  sub_config_control ::= "{" config_control_params "}"

  config_control_params ::= config_control_param
                       | config_control_params "," config_control_param
                       | config_control_params ","

  config_control_param ::= config_databases
                      | config_fetch_wait_time

  config_databases ::= "config-databases" ":" "[" database_list "]"

  config_fetch_wait_time ::= "config-fetch-wait-time" ":" INTEGER

  loggers ::= "loggers" ":" "[" loggers_entries "]"

  loggers_entries ::= logger_entry
                 | loggers_entries "," logger_entry
                 | loggers_entries ","

  logger_entry ::= "{" logger_params "}"

  logger_params ::= logger_param
               | logger_params "," logger_param
               | logger_params ","

  logger_param ::= name
              | output_options_list
              | debuglevel
              | severity
              | user_context
              | comment
              | unknown_map_entry

  debuglevel ::= "debuglevel" ":" INTEGER

  severity ::= "severity" ":" STRING

  output_options_list ::= "output_options" ":" "[" output_options_list_content "]"

  output_options_list_content ::= output_entry
                             | output_options_list_content "," output_entry
                             | output_options_list_content ","

  output_entry ::= "{" output_params_list "}"

  output_params_list ::= output_params
                    | output_params_list "," output_params
                    | output_params_list ","

  output_params ::= output
               | flush
               | maxsize
               | maxver
               | pattern

  output ::= "output" ":" STRING

  flush ::= "flush" ":" BOOLEAN

  maxsize ::= "maxsize" ":" INTEGER

  maxver ::= "maxver" ":" INTEGER

  pattern ::= "pattern" ":" STRING

  compatibility ::= "compatibility" ":" "{" compatibility_params "}"

  compatibility_params ::= compatibility_param
                      | compatibility_params "," compatibility_param
                      | compatibility_params ","

  compatibility_param ::= lenient_option_parsing
                     | ignore-rai-link-selection
                     | unknown_map_entry

  lenient_option_parsing ::= "lenient-option-parsing" ":" BOOLEAN

  ignore-rai-link-selection ::= "ignore-rai-link-selection" ":" BOOLEAN

BNF Grammar for DHCPv6

This grammar is generated from dhcp6_parser.yy. See The DHCPv6 Server for more details.

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  Grammar

  $accept ::= start EOF

  start ::= TOPLEVEL_JSON sub_json

  start ::= TOPLEVEL_DHCP6 syntax_map

  start ::= SUB_DHCP6 sub_dhcp6

  start ::= SUB_INTERFACES6 sub_interfaces6

  start ::= SUB_SUBNET6 sub_subnet6

  start ::= SUB_POOL6 sub_pool6

  start ::= SUB_PD_POOL sub_pd_pool

  start ::= SUB_RESERVATION sub_reservation

  start ::= SUB_OPTION_DEFS sub_option_def_list

  start ::= SUB_OPTION_DEF sub_option_def

  start ::= SUB_OPTION_DATA sub_option_data

  start ::= SUB_HOOKS_LIBRARY sub_hooks_library

  start ::= SUB_DHCP_DDNS sub_dhcp_ddns

  start ::= SUB_CONFIG_CONTROL sub_config_control

  value ::= INTEGER
       | FLOAT
       | BOOLEAN
       | STRING
       | NULL
       | map2
       | list_generic

  sub_json ::= value

  map2 ::= "{" map_content "}"

  map_value ::= map2

  map_content ::=
             | not_empty_map

  not_empty_map ::= STRING ":" value
               | not_empty_map "," STRING ":" value
               | not_empty_map ","

  list_generic ::= "[" list_content "]"

  list_content ::=
              | not_empty_list

  not_empty_list ::= value
                | not_empty_list "," value
                | not_empty_list ","

  list_strings ::= "[" list_strings_content "]"

  list_strings_content ::=
                      | not_empty_list_strings

  not_empty_list_strings ::= STRING
                        | not_empty_list_strings "," STRING
                        | not_empty_list_strings ","

  unknown_map_entry ::= STRING ":"

  syntax_map ::= "{" global_object "}"

  global_object ::= "Dhcp6" ":" "{" global_params "}"
               | global_object_comma

  global_object_comma ::= global_object ","

  sub_dhcp6 ::= "{" global_params "}"

  global_params ::= global_param
               | global_params "," global_param
               | global_params ","

  global_param ::= data_directory
              | preferred_lifetime
              | min_preferred_lifetime
              | max_preferred_lifetime
              | valid_lifetime
              | min_valid_lifetime
              | max_valid_lifetime
              | renew_timer
              | rebind_timer
              | decline_probation_period
              | subnet6_list
              | shared_networks
              | interfaces_config
              | lease_database
              | hosts_database
              | hosts_databases
              | mac_sources
              | relay_supplied_options
              | host_reservation_identifiers
              | client_classes
              | option_def_list
              | option_data_list
              | hooks_libraries
              | expired_leases_processing
              | server_id
              | dhcp4o6_port
              | control_socket
              | dhcp_queue_control
              | dhcp_ddns
              | user_context
              | comment
              | sanity_checks
              | reservations
              | config_control
              | server_tag
              | reservation_mode
              | reservations_global
              | reservations_in_subnet
              | reservations_out_of_pool
              | calculate_tee_times
              | t1_percent
              | t2_percent
              | cache_threshold
              | cache_max_age
              | loggers
              | hostname_char_set
              | hostname_char_replacement
              | ddns_send_updates
              | ddns_override_no_update
              | ddns_override_client_update
              | ddns_replace_client_name
              | ddns_generated_prefix
              | ddns_qualifying_suffix
              | ddns_update_on_renew
              | ddns_use_conflict_resolution
              | store_extended_info
              | statistic_default_sample_count
              | statistic_default_sample_age
              | dhcp_multi_threading
              | early_global_reservations_lookup
              | ip_reservations_unique
              | reservations_lookup_first
              | compatibility
              | parked_packet_limit
              | unknown_map_entry

  data_directory ::= "data-directory" ":" STRING

  preferred_lifetime ::= "preferred-lifetime" ":" INTEGER

  min_preferred_lifetime ::= "min-preferred-lifetime" ":" INTEGER

  max_preferred_lifetime ::= "max-preferred-lifetime" ":" INTEGER

  valid_lifetime ::= "valid-lifetime" ":" INTEGER

  min_valid_lifetime ::= "min-valid-lifetime" ":" INTEGER

  max_valid_lifetime ::= "max-valid-lifetime" ":" INTEGER

  renew_timer ::= "renew-timer" ":" INTEGER

  rebind_timer ::= "rebind-timer" ":" INTEGER

  calculate_tee_times ::= "calculate-tee-times" ":" BOOLEAN

  t1_percent ::= "t1-percent" ":" FLOAT

  t2_percent ::= "t2-percent" ":" FLOAT

  cache_threshold ::= "cache-threshold" ":" FLOAT

  cache_max_age ::= "cache-max-age" ":" INTEGER

  decline_probation_period ::= "decline-probation-period" ":" INTEGER

  ddns_send_updates ::= "ddns-send-updates" ":" BOOLEAN

  ddns_override_no_update ::= "ddns-override-no-update" ":" BOOLEAN

  ddns_override_client_update ::= "ddns-override-client-update" ":" BOOLEAN

  ddns_replace_client_name ::= "ddns-replace-client-name" ":" ddns_replace_client_name_value

  ddns_replace_client_name_value ::= "when-present"
                                | "never"
                                | "always"
                                | "when-not-present"
                                | BOOLEAN

  ddns_generated_prefix ::= "ddns-generated-prefix" ":" STRING

  ddns_qualifying_suffix ::= "ddns-qualifying-suffix" ":" STRING

  ddns_update_on_renew ::= "ddns-update-on-renew" ":" BOOLEAN

  ddns_use_conflict_resolution ::= "ddns-use-conflict-resolution" ":" BOOLEAN

  hostname_char_set ::= "hostname-char-set" ":" STRING

  hostname_char_replacement ::= "hostname-char-replacement" ":" STRING

  store_extended_info ::= "store-extended-info" ":" BOOLEAN

  statistic_default_sample_count ::= "statistic-default-sample-count" ":" INTEGER

  statistic_default_sample_age ::= "statistic-default-sample-age" ":" INTEGER

  server_tag ::= "server-tag" ":" STRING

  parked_packet_limit ::= "parked-packet-limit" ":" INTEGER

  early_global_reservations_lookup ::= "early-global-reservations-lookup" ":" BOOLEAN

  ip_reservations_unique ::= "ip-reservations-unique" ":" BOOLEAN

  reservations_lookup_first ::= "reservations-lookup-first" ":" BOOLEAN

  interfaces_config ::= "interfaces-config" ":" "{" interfaces_config_params "}"

  sub_interfaces6 ::= "{" interfaces_config_params "}"

  interfaces_config_params ::= interfaces_config_param
                          | interfaces_config_params "," interfaces_config_param
                          | interfaces_config_params ","

  interfaces_config_param ::= interfaces_list
                         | re_detect
                         | service_sockets_require_all
                         | service_sockets_retry_wait_time
                         | service_sockets_max_retries
                         | user_context
                         | comment
                         | unknown_map_entry

  interfaces_list ::= "interfaces" ":" list_strings

  re_detect ::= "re-detect" ":" BOOLEAN

  service_sockets_require_all ::= "service-sockets-require-all" ":" BOOLEAN

  service_sockets_retry_wait_time ::= "service-sockets-retry-wait-time" ":" INTEGER

  service_sockets_max_retries ::= "service-sockets-max-retries" ":" INTEGER

  lease_database ::= "lease-database" ":" "{" database_map_params "}"

  hosts_database ::= "hosts-database" ":" "{" database_map_params "}"

  hosts_databases ::= "hosts-databases" ":" "[" database_list "]"

  database_list ::=
               | not_empty_database_list

  not_empty_database_list ::= database
                         | not_empty_database_list "," database
                         | not_empty_database_list ","

  database ::= "{" database_map_params "}"

  database_map_params ::= database_map_param
                     | database_map_params "," database_map_param
                     | database_map_params ","

  database_map_param ::= database_type
                    | user
                    | password
                    | host
                    | port
                    | name
                    | persist
                    | lfc_interval
                    | readonly
                    | connect_timeout
                    | max_reconnect_tries
                    | reconnect_wait_time
                    | on_fail
                    | max_row_errors
                    | trust_anchor
                    | cert_file
                    | key_file
                    | cipher_list
                    | unknown_map_entry

  database_type ::= "type" ":" db_type

  db_type ::= "memfile"
         | "mysql"
         | "postgresql"

  user ::= "user" ":" STRING

  password ::= "password" ":" STRING

  host ::= "host" ":" STRING

  port ::= "port" ":" INTEGER

  name ::= "name" ":" STRING

  persist ::= "persist" ":" BOOLEAN

  lfc_interval ::= "lfc-interval" ":" INTEGER

  readonly ::= "readonly" ":" BOOLEAN

  connect_timeout ::= "connect-timeout" ":" INTEGER

  reconnect_wait_time ::= "reconnect-wait-time" ":" INTEGER

  on_fail ::= "on-fail" ":" on_fail_mode

  on_fail_mode ::= "stop-retry-exit"
              | "serve-retry-exit"
              | "serve-retry-continue"

  max_row_errors ::= "max-row-errors" ":" INTEGER

  max_reconnect_tries ::= "max-reconnect-tries" ":" INTEGER

  trust_anchor ::= "trust-anchor" ":" STRING

  cert_file ::= "cert-file" ":" STRING

  key_file ::= "key-file" ":" STRING

  cipher_list ::= "cipher-list" ":" STRING

  sanity_checks ::= "sanity-checks" ":" "{" sanity_checks_params "}"

  sanity_checks_params ::= sanity_checks_param
                      | sanity_checks_params "," sanity_checks_param
                      | sanity_checks_params ","

  sanity_checks_param ::= lease_checks
                     | extended_info_checks

  lease_checks ::= "lease-checks" ":" STRING

  extended_info_checks ::= "extended-info-checks" ":" STRING

  mac_sources ::= "mac-sources" ":" "[" mac_sources_list "]"

  mac_sources_list ::= mac_sources_value
                  | mac_sources_list "," mac_sources_value
                  | mac_sources_list ","

  mac_sources_value ::= duid_id
                   | string_id

  duid_id ::= "duid"

  string_id ::= STRING

  host_reservation_identifiers ::= "host-reservation-identifiers" ":" "[" host_reservation_identifiers_list "]"

  host_reservation_identifiers_list ::= host_reservation_identifier
                                   | host_reservation_identifiers_list "," host_reservation_identifier
                                   | host_reservation_identifiers_list ","

  host_reservation_identifier ::= duid_id
                             | hw_address_id
                             | flex_id

  hw_address_id ::= "hw-address"

  flex_id ::= "flex-id"

  relay_supplied_options ::= "relay-supplied-options" ":" "[" list_content "]"

  dhcp_multi_threading ::= "multi-threading" ":" "{" multi_threading_params "}"

  multi_threading_params ::= multi_threading_param
                        | multi_threading_params "," multi_threading_param
                        | multi_threading_params ","

  multi_threading_param ::= enable_multi_threading
                       | thread_pool_size
                       | packet_queue_size
                       | user_context
                       | comment
                       | unknown_map_entry

  enable_multi_threading ::= "enable-multi-threading" ":" BOOLEAN

  thread_pool_size ::= "thread-pool-size" ":" INTEGER

  packet_queue_size ::= "packet-queue-size" ":" INTEGER

  hooks_libraries ::= "hooks-libraries" ":" "[" hooks_libraries_list "]"

  hooks_libraries_list ::=
                      | not_empty_hooks_libraries_list

  not_empty_hooks_libraries_list ::= hooks_library
                                | not_empty_hooks_libraries_list "," hooks_library
                                | not_empty_hooks_libraries_list ","

  hooks_library ::= "{" hooks_params "}"

  sub_hooks_library ::= "{" hooks_params "}"

  hooks_params ::= hooks_param
              | hooks_params "," hooks_param
              | hooks_params ","
              | unknown_map_entry

  hooks_param ::= library
             | parameters

  library ::= "library" ":" STRING

  parameters ::= "parameters" ":" map_value

  expired_leases_processing ::= "expired-leases-processing" ":" "{" expired_leases_params "}"

  expired_leases_params ::= expired_leases_param
                       | expired_leases_params "," expired_leases_param
                       | expired_leases_params ","

  expired_leases_param ::= reclaim_timer_wait_time
                      | flush_reclaimed_timer_wait_time
                      | hold_reclaimed_time
                      | max_reclaim_leases
                      | max_reclaim_time
                      | unwarned_reclaim_cycles

  reclaim_timer_wait_time ::= "reclaim-timer-wait-time" ":" INTEGER

  flush_reclaimed_timer_wait_time ::= "flush-reclaimed-timer-wait-time" ":" INTEGER

  hold_reclaimed_time ::= "hold-reclaimed-time" ":" INTEGER

  max_reclaim_leases ::= "max-reclaim-leases" ":" INTEGER

  max_reclaim_time ::= "max-reclaim-time" ":" INTEGER

  unwarned_reclaim_cycles ::= "unwarned-reclaim-cycles" ":" INTEGER

  subnet6_list ::= "subnet6" ":" "[" subnet6_list_content "]"

  subnet6_list_content ::=
                      | not_empty_subnet6_list

  not_empty_subnet6_list ::= subnet6
                        | not_empty_subnet6_list "," subnet6
                        | not_empty_subnet6_list ","

  subnet6 ::= "{" subnet6_params "}"

  sub_subnet6 ::= "{" subnet6_params "}"

  subnet6_params ::= subnet6_param
                | subnet6_params "," subnet6_param
                | subnet6_params ","

  subnet6_param ::= preferred_lifetime
               | min_preferred_lifetime
               | max_preferred_lifetime
               | valid_lifetime
               | min_valid_lifetime
               | max_valid_lifetime
               | renew_timer
               | rebind_timer
               | option_data_list
               | pools_list
               | pd_pools_list
               | subnet
               | interface
               | interface_id
               | id
               | rapid_commit
               | client_class
               | require_client_classes
               | reservations
               | reservation_mode
               | reservations_global
               | reservations_in_subnet
               | reservations_out_of_pool
               | relay
               | user_context
               | comment
               | calculate_tee_times
               | t1_percent
               | t2_percent
               | cache_threshold
               | cache_max_age
               | hostname_char_set
               | hostname_char_replacement
               | ddns_send_updates
               | ddns_override_no_update
               | ddns_override_client_update
               | ddns_replace_client_name
               | ddns_generated_prefix
               | ddns_qualifying_suffix
               | ddns_update_on_renew
               | ddns_use_conflict_resolution
               | store_extended_info
               | unknown_map_entry

  subnet ::= "subnet" ":" STRING

  interface ::= "interface" ":" STRING

  interface_id ::= "interface-id" ":" STRING

  client_class ::= "client-class" ":" STRING

  require_client_classes ::= "require-client-classes" ":" list_strings

  reservations_global ::= "reservations-global" ":" BOOLEAN

  reservations_in_subnet ::= "reservations-in-subnet" ":" BOOLEAN

  reservations_out_of_pool ::= "reservations-out-of-pool" ":" BOOLEAN

  reservation_mode ::= "reservation-mode" ":" hr_mode

  hr_mode ::= "disabled"
         | "out-of-pool"
         | "global"
         | "all"

  id ::= "id" ":" INTEGER

  rapid_commit ::= "rapid-commit" ":" BOOLEAN

  shared_networks ::= "shared-networks" ":" "[" shared_networks_content "]"

  shared_networks_content ::=
                         | shared_networks_list

  shared_networks_list ::= shared_network
                      | shared_networks_list "," shared_network
                      | shared_networks_list ","

  shared_network ::= "{" shared_network_params "}"

  shared_network_params ::= shared_network_param
                       | shared_network_params "," shared_network_param
                       | shared_network_params ","

  shared_network_param ::= name
                      | subnet6_list
                      | interface
                      | interface_id
                      | renew_timer
                      | rebind_timer
                      | option_data_list
                      | relay
                      | reservation_mode
                      | reservations_global
                      | reservations_in_subnet
                      | reservations_out_of_pool
                      | client_class
                      | require_client_classes
                      | preferred_lifetime
                      | min_preferred_lifetime
                      | max_preferred_lifetime
                      | rapid_commit
                      | valid_lifetime
                      | min_valid_lifetime
                      | max_valid_lifetime
                      | user_context
                      | comment
                      | calculate_tee_times
                      | t1_percent
                      | t2_percent
                      | cache_threshold
                      | cache_max_age
                      | hostname_char_set
                      | hostname_char_replacement
                      | ddns_send_updates
                      | ddns_override_no_update
                      | ddns_override_client_update
                      | ddns_replace_client_name
                      | ddns_generated_prefix
                      | ddns_qualifying_suffix
                      | ddns_update_on_renew
                      | ddns_use_conflict_resolution
                      | store_extended_info
                      | unknown_map_entry

  option_def_list ::= "option-def" ":" "[" option_def_list_content "]"

  sub_option_def_list ::= "{" option_def_list "}"

  option_def_list_content ::=
                         | not_empty_option_def_list

  not_empty_option_def_list ::= option_def_entry
                           | not_empty_option_def_list "," option_def_entry
                           | not_empty_option_def_list ","

  option_def_entry ::= "{" option_def_params "}"

  sub_option_def ::= "{" option_def_params "}"

  option_def_params ::=
                   | not_empty_option_def_params

  not_empty_option_def_params ::= option_def_param
                             | not_empty_option_def_params "," option_def_param
                             | not_empty_option_def_params ","

  option_def_param ::= option_def_name
                  | option_def_code
                  | option_def_type
                  | option_def_record_types
                  | option_def_space
                  | option_def_encapsulate
                  | option_def_array
                  | user_context
                  | comment
                  | unknown_map_entry

  option_def_name ::= name

  code ::= "code" ":" INTEGER

  option_def_code ::= code

  option_def_type ::= "type" ":" STRING

  option_def_record_types ::= "record-types" ":" STRING

  space ::= "space" ":" STRING

  option_def_space ::= space

  option_def_encapsulate ::= "encapsulate" ":" STRING

  option_def_array ::= "array" ":" BOOLEAN

  option_data_list ::= "option-data" ":" "[" option_data_list_content "]"

  option_data_list_content ::=
                          | not_empty_option_data_list

  not_empty_option_data_list ::= option_data_entry
                            | not_empty_option_data_list "," option_data_entry
                            | not_empty_option_data_list ","

  option_data_entry ::= "{" option_data_params "}"

  sub_option_data ::= "{" option_data_params "}"

  option_data_params ::=
                    | not_empty_option_data_params

  not_empty_option_data_params ::= option_data_param
                              | not_empty_option_data_params "," option_data_param
                              | not_empty_option_data_params ","

  option_data_param ::= option_data_name
                   | option_data_data
                   | option_data_code
                   | option_data_space
                   | option_data_csv_format
                   | option_data_always_send
                   | user_context
                   | comment
                   | unknown_map_entry

  option_data_name ::= name

  option_data_data ::= "data" ":" STRING

  option_data_code ::= code

  option_data_space ::= space

  option_data_csv_format ::= "csv-format" ":" BOOLEAN

  option_data_always_send ::= "always-send" ":" BOOLEAN

  pools_list ::= "pools" ":" "[" pools_list_content "]"

  pools_list_content ::=
                    | not_empty_pools_list

  not_empty_pools_list ::= pool_list_entry
                      | not_empty_pools_list "," pool_list_entry
                      | not_empty_pools_list ","

  pool_list_entry ::= "{" pool_params "}"

  sub_pool6 ::= "{" pool_params "}"

  pool_params ::= pool_param
             | pool_params "," pool_param
             | pool_params ","

  pool_param ::= pool_entry
            | option_data_list
            | client_class
            | require_client_classes
            | user_context
            | comment
            | unknown_map_entry

  pool_entry ::= "pool" ":" STRING

  user_context ::= "user-context" ":" map_value

  comment ::= "comment" ":" STRING

  pd_pools_list ::= "pd-pools" ":" "[" pd_pools_list_content "]"

  pd_pools_list_content ::=
                       | not_empty_pd_pools_list

  not_empty_pd_pools_list ::= pd_pool_entry
                         | not_empty_pd_pools_list "," pd_pool_entry
                         | not_empty_pd_pools_list ","

  pd_pool_entry ::= "{" pd_pool_params "}"

  sub_pd_pool ::= "{" pd_pool_params "}"

  pd_pool_params ::= pd_pool_param
                | pd_pool_params "," pd_pool_param
                | pd_pool_params ","

  pd_pool_param ::= pd_prefix
               | pd_prefix_len
               | pd_delegated_len
               | option_data_list
               | client_class
               | require_client_classes
               | excluded_prefix
               | excluded_prefix_len
               | user_context
               | comment
               | unknown_map_entry

  pd_prefix ::= "prefix" ":" STRING

  pd_prefix_len ::= "prefix-len" ":" INTEGER

  excluded_prefix ::= "excluded-prefix" ":" STRING

  excluded_prefix_len ::= "excluded-prefix-len" ":" INTEGER

  pd_delegated_len ::= "delegated-len" ":" INTEGER

  reservations ::= "reservations" ":" "[" reservations_list "]"

  reservations_list ::=
                   | not_empty_reservations_list

  not_empty_reservations_list ::= reservation
                             | not_empty_reservations_list "," reservation
                             | not_empty_reservations_list ","

  reservation ::= "{" reservation_params "}"

  sub_reservation ::= "{" reservation_params "}"

  reservation_params ::=
                    | not_empty_reservation_params

  not_empty_reservation_params ::= reservation_param
                              | not_empty_reservation_params "," reservation_param
                              | not_empty_reservation_params ","

  reservation_param ::= duid
                   | reservation_client_classes
                   | ip_addresses
                   | prefixes
                   | hw_address
                   | hostname
                   | flex_id_value
                   | option_data_list
                   | user_context
                   | comment
                   | unknown_map_entry

  ip_addresses ::= "ip-addresses" ":" list_strings

  prefixes ::= "prefixes" ":" list_strings

  duid ::= "duid" ":" STRING

  hw_address ::= "hw-address" ":" STRING

  hostname ::= "hostname" ":" STRING

  flex_id_value ::= "flex-id" ":" STRING

  reservation_client_classes ::= "client-classes" ":" list_strings

  relay ::= "relay" ":" "{" relay_map "}"

  relay_map ::= ip_address
           | ip_addresses

  ip_address ::= "ip-address" ":" STRING

  client_classes ::= "client-classes" ":" "[" client_classes_list "]"

  client_classes_list ::= client_class_entry
                     | client_classes_list "," client_class_entry
                     | client_classes_list ","

  client_class_entry ::= "{" client_class_params "}"

  client_class_params ::=
                     | not_empty_client_class_params

  not_empty_client_class_params ::= client_class_param
                               | not_empty_client_class_params "," client_class_param
                               | not_empty_client_class_params ","

  client_class_param ::= client_class_name
                    | client_class_test
                    | client_class_template_test
                    | only_if_required
                    | option_data_list
                    | user_context
                    | comment
                    | preferred_lifetime
                    | min_preferred_lifetime
                    | max_preferred_lifetime
                    | valid_lifetime
                    | min_valid_lifetime
                    | max_valid_lifetime
                    | unknown_map_entry

  client_class_name ::= name

  client_class_test ::= "test" ":" STRING

  client_class_template_test ::= "template-test" ":" STRING

  only_if_required ::= "only-if-required" ":" BOOLEAN

  server_id ::= "server-id" ":" "{" server_id_params "}"

  server_id_params ::= server_id_param
                  | server_id_params "," server_id_param
                  | server_id_params ","

  server_id_param ::= server_id_type
                 | identifier
                 | time
                 | htype
                 | enterprise_id
                 | persist
                 | user_context
                 | comment
                 | unknown_map_entry

  server_id_type ::= "type" ":" duid_type

  duid_type ::= "LLT"
           | "EN"
           | "LL"

  htype ::= "htype" ":" INTEGER

  identifier ::= "identifier" ":" STRING

  time ::= "time" ":" INTEGER

  enterprise_id ::= "enterprise-id" ":" INTEGER

  dhcp4o6_port ::= "dhcp4o6-port" ":" INTEGER

  control_socket ::= "control-socket" ":" "{" control_socket_params "}"

  control_socket_params ::= control_socket_param
                       | control_socket_params "," control_socket_param
                       | control_socket_params ","

  control_socket_param ::= socket_type
                      | socket_name
                      | user_context
                      | comment
                      | unknown_map_entry

  socket_type ::= "socket-type" ":" STRING

  socket_name ::= "socket-name" ":" STRING

  dhcp_queue_control ::= "dhcp-queue-control" ":" "{" queue_control_params "}"

  queue_control_params ::= queue_control_param
                      | queue_control_params "," queue_control_param
                      | queue_control_params ","

  queue_control_param ::= enable_queue
                     | queue_type
                     | capacity
                     | user_context
                     | comment
                     | arbitrary_map_entry

  enable_queue ::= "enable-queue" ":" BOOLEAN

  queue_type ::= "queue-type" ":" STRING

  capacity ::= "capacity" ":" INTEGER

  arbitrary_map_entry ::= STRING ":" value

  dhcp_ddns ::= "dhcp-ddns" ":" "{" dhcp_ddns_params "}"

  sub_dhcp_ddns ::= "{" dhcp_ddns_params "}"

  dhcp_ddns_params ::= dhcp_ddns_param
                  | dhcp_ddns_params "," dhcp_ddns_param
                  | dhcp_ddns_params ","

  dhcp_ddns_param ::= enable_updates
                 | server_ip
                 | server_port
                 | sender_ip
                 | sender_port
                 | max_queue_size
                 | ncr_protocol
                 | ncr_format
                 | dep_override_no_update
                 | dep_override_client_update
                 | dep_replace_client_name
                 | dep_generated_prefix
                 | dep_qualifying_suffix
                 | dep_hostname_char_set
                 | dep_hostname_char_replacement
                 | user_context
                 | comment
                 | unknown_map_entry

  enable_updates ::= "enable-updates" ":" BOOLEAN

  dep_qualifying_suffix ::= "qualifying-suffix" ":" STRING

  server_ip ::= "server-ip" ":" STRING

  server_port ::= "server-port" ":" INTEGER

  sender_ip ::= "sender-ip" ":" STRING

  sender_port ::= "sender-port" ":" INTEGER

  max_queue_size ::= "max-queue-size" ":" INTEGER

  ncr_protocol ::= "ncr-protocol" ":" ncr_protocol_value

  ncr_protocol_value ::= "UDP"
                    | "TCP"

  ncr_format ::= "ncr-format" ":" "JSON"

  dep_override_no_update ::= "override-no-update" ":" BOOLEAN

  dep_override_client_update ::= "override-client-update" ":" BOOLEAN

  dep_replace_client_name ::= "replace-client-name" ":" ddns_replace_client_name_value

  dep_generated_prefix ::= "generated-prefix" ":" STRING

  dep_hostname_char_set ::= "hostname-char-set" ":" STRING

  dep_hostname_char_replacement ::= "hostname-char-replacement" ":" STRING

  config_control ::= "config-control" ":" "{" config_control_params "}"

  sub_config_control ::= "{" config_control_params "}"

  config_control_params ::= config_control_param
                       | config_control_params "," config_control_param
                       | config_control_params ","

  config_control_param ::= config_databases
                      | config_fetch_wait_time

  config_databases ::= "config-databases" ":" "[" database_list "]"

  config_fetch_wait_time ::= "config-fetch-wait-time" ":" INTEGER

  loggers ::= "loggers" ":" "[" loggers_entries "]"

  loggers_entries ::= logger_entry
                 | loggers_entries "," logger_entry
                 | loggers_entries ","

  logger_entry ::= "{" logger_params "}"

  logger_params ::= logger_param
               | logger_params "," logger_param
               | logger_params ","

  logger_param ::= name
              | output_options_list
              | debuglevel
              | severity
              | user_context
              | comment
              | unknown_map_entry

  debuglevel ::= "debuglevel" ":" INTEGER

  severity ::= "severity" ":" STRING

  output_options_list ::= "output_options" ":" "[" output_options_list_content "]"

  output_options_list_content ::= output_entry
                             | output_options_list_content "," output_entry
                             | output_options_list_content ","

  output_entry ::= "{" output_params_list "}"

  output_params_list ::= output_params
                    | output_params_list "," output_params
                    | output_params_list ","

  output_params ::= output
               | flush
               | maxsize
               | maxver
               | pattern

  output ::= "output" ":" STRING

  flush ::= "flush" ":" BOOLEAN

  maxsize ::= "maxsize" ":" INTEGER

  maxver ::= "maxver" ":" INTEGER

  pattern ::= "pattern" ":" STRING

  compatibility ::= "compatibility" ":" "{" compatibility_params "}"

  compatibility_params ::= compatibility_param
                      | compatibility_params "," compatibility_param
                      | compatibility_params ","

  compatibility_param ::= lenient_option_parsing
                     | unknown_map_entry

  lenient_option_parsing ::= "lenient-option-parsing" ":" BOOLEAN

BNF Grammar for Control Agent

This grammar is generated from agent_parser.yy. See The Kea Control Agent for more details.

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  Grammar

  $accept ::= start EOF

  start ::= START_JSON json

  start ::= START_AGENT agent_syntax_map

  start ::= START_SUB_AGENT sub_agent

  sub_agent ::= "{" global_params "}"

  json ::= value

  value ::= INTEGER
       | FLOAT
       | BOOLEAN
       | STRING
       | NULL
       | map
       | list_generic

  map ::= "{" map_content "}"

  map_value ::= map

  map_content ::=
             | not_empty_map

  not_empty_map ::= STRING ":" value
               | not_empty_map "," STRING ":" value
               | not_empty_map ","

  list_generic ::= "[" list_content "]"

  list_content ::=
              | not_empty_list

  not_empty_list ::= value
                | not_empty_list "," value
                | not_empty_list ","

  unknown_map_entry ::= STRING ":"

  agent_syntax_map ::= "{" global_object "}"

  global_object ::= "Control-agent" ":" "{" global_params "}"
               | global_object_comma

  global_object_comma ::= global_object ","

  global_params ::= global_param
               | global_params "," global_param
               | global_params ","

  global_param ::= http_host
              | http_port
              | trust_anchor
              | cert_file
              | key_file
              | cert_required
              | authentication
              | control_sockets
              | hooks_libraries
              | loggers
              | user_context
              | comment
              | unknown_map_entry

  http_host ::= "http-host" ":" STRING

  http_port ::= "http-port" ":" INTEGER

  trust_anchor ::= "trust-anchor" ":" STRING

  cert_file ::= "cert-file" ":" STRING

  key_file ::= "key-file" ":" STRING

  cert_required ::= "cert-required" ":" BOOLEAN

  user_context ::= "user-context" ":" map_value

  comment ::= "comment" ":" STRING

  hooks_libraries ::= "hooks-libraries" ":" "[" hooks_libraries_list "]"

  hooks_libraries_list ::=
                      | not_empty_hooks_libraries_list

  not_empty_hooks_libraries_list ::= hooks_library
                                | not_empty_hooks_libraries_list "," hooks_library
                                | not_empty_hooks_libraries_list ","

  hooks_library ::= "{" hooks_params "}"

  hooks_params ::= hooks_param
              | hooks_params "," hooks_param
              | hooks_params ","
              | unknown_map_entry

  hooks_param ::= library
             | parameters

  library ::= "library" ":" STRING

  parameters ::= "parameters" ":" map_value

  control_sockets ::= "control-sockets" ":" "{" control_sockets_params "}"

  control_sockets_params ::= control_socket
                        | control_sockets_params "," control_socket
                        | control_sockets_params ","

  control_socket ::= dhcp4_server_socket
                | dhcp6_server_socket
                | d2_server_socket
                | unknown_map_entry

  dhcp4_server_socket ::= "dhcp4" ":" "{" control_socket_params "}"

  dhcp6_server_socket ::= "dhcp6" ":" "{" control_socket_params "}"

  d2_server_socket ::= "d2" ":" "{" control_socket_params "}"

  control_socket_params ::= control_socket_param
                       | control_socket_params "," control_socket_param
                       | control_socket_params ","

  control_socket_param ::= socket_name
                      | socket_type
                      | user_context
                      | comment
                      | unknown_map_entry

  socket_name ::= "socket-name" ":" STRING

  socket_type ::= "socket-type" ":" socket_type_value

  socket_type_value ::= "unix"

  authentication ::= "authentication" ":" "{" auth_params "}"

  auth_params ::= auth_param
             | auth_params "," auth_param
             | auth_params ","

  auth_param ::= auth_type
            | realm
            | directory
            | clients
            | comment
            | user_context
            | unknown_map_entry

  auth_type ::= "type" ":" auth_type_value

  auth_type_value ::= "basic"

  realm ::= "realm" ":" STRING

  directory ::= "directory" ":" STRING

  clients ::= "clients" ":" "[" clients_list "]"

  clients_list ::=
              | not_empty_clients_list

  not_empty_clients_list ::= basic_auth
                        | not_empty_clients_list "," basic_auth
                        | not_empty_clients_list ","

  basic_auth ::= "{" clients_params "}"

  clients_params ::= clients_param
                | clients_params "," clients_param
                | clients_params ","

  clients_param ::= user
               | user_file
               | password
               | password_file
               | user_context
               | comment
               | unknown_map_entry

  user ::= "user" ":" STRING

  user_file ::= "user-file" ":" STRING

  password ::= "password" ":" STRING

  password_file ::= "password-file" ":" STRING

  loggers ::= "loggers" ":" "[" loggers_entries "]"

  loggers_entries ::= logger_entry
                 | loggers_entries "," logger_entry
                 | loggers_entries ","

  logger_entry ::= "{" logger_params "}"

  logger_params ::= logger_param
               | logger_params "," logger_param
               | logger_params ","

  logger_param ::= name
              | output_options_list
              | debuglevel
              | severity
              | user_context
              | comment
              | unknown_map_entry

  name ::= "name" ":" STRING

  debuglevel ::= "debuglevel" ":" INTEGER

  severity ::= "severity" ":" STRING

  output_options_list ::= "output_options" ":" "[" output_options_list_content "]"

  output_options_list_content ::= output_entry
                             | output_options_list_content "," output_entry
                             | output_options_list_content ","

  output_entry ::= "{" output_params_list "}"

  output_params_list ::= output_params
                    | output_params_list "," output_params
                    | output_params_list ","

  output_params ::= output
               | flush
               | maxsize
               | maxver
               | pattern

  output ::= "output" ":" STRING

  flush ::= "flush" ":" BOOLEAN

  maxsize ::= "maxsize" ":" INTEGER

  maxver ::= "maxver" ":" INTEGER

  pattern ::= "pattern" ":" STRING

BNF Grammar for DHCP-DDNS

This grammar is generated from d2_parser.yy. See The DHCP-DDNS Server for more details.

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  Grammar

  $accept ::= start EOF

  start ::= TOPLEVEL_JSON sub_json

  start ::= TOPLEVEL_DHCPDDNS syntax_map

  start ::= SUB_DHCPDDNS sub_dhcpddns

  start ::= SUB_TSIG_KEY sub_tsig_key

  start ::= SUB_TSIG_KEYS sub_tsig_keys

  start ::= SUB_DDNS_DOMAIN sub_ddns_domain

  start ::= SUB_DDNS_DOMAINS sub_ddns_domains

  start ::= SUB_DNS_SERVER sub_dns_server

  start ::= SUB_DNS_SERVERS sub_dns_servers

  start ::= SUB_HOOKS_LIBRARY sub_hooks_library

  value ::= INTEGER
       | FLOAT
       | BOOLEAN
       | STRING
       | NULL
       | map2
       | list_generic

  sub_json ::= value

  map2 ::= "{" map_content "}"

  map_value ::= map2

  map_content ::=
             | not_empty_map

  not_empty_map ::= STRING ":" value
               | not_empty_map "," STRING ":" value
               | not_empty_map ","

  list_generic ::= "[" list_content "]"

  list_content ::=
              | not_empty_list

  not_empty_list ::= value
                | not_empty_list "," value
                | not_empty_list ","

  unknown_map_entry ::= STRING ":"

  syntax_map ::= "{" global_object "}"

  global_object ::= "DhcpDdns" ":" "{" dhcpddns_params "}"
               | global_object_comma

  global_object_comma ::= global_object ","

  sub_dhcpddns ::= "{" dhcpddns_params "}"

  dhcpddns_params ::= dhcpddns_param
                 | dhcpddns_params "," dhcpddns_param
                 | dhcpddns_params ","

  dhcpddns_param ::= ip_address
                | port
                | dns_server_timeout
                | ncr_protocol
                | ncr_format
                | forward_ddns
                | reverse_ddns
                | tsig_keys
                | control_socket
                | hooks_libraries
                | loggers
                | user_context
                | comment
                | unknown_map_entry

  ip_address ::= "ip-address" ":" STRING

  port ::= "port" ":" INTEGER

  dns_server_timeout ::= "dns-server-timeout" ":" INTEGER

  ncr_protocol ::= "ncr-protocol" ":" ncr_protocol_value

  ncr_protocol_value ::= "UDP"
                    | "TCP"

  ncr_format ::= "ncr-format" ":" "JSON"

  user_context ::= "user-context" ":" map_value

  comment ::= "comment" ":" STRING

  forward_ddns ::= "forward-ddns" ":" "{" ddns_mgr_params "}"

  reverse_ddns ::= "reverse-ddns" ":" "{" ddns_mgr_params "}"

  ddns_mgr_params ::=
                 | not_empty_ddns_mgr_params

  not_empty_ddns_mgr_params ::= ddns_mgr_param
                           | ddns_mgr_params "," ddns_mgr_param
                           | ddns_mgr_params ","

  ddns_mgr_param ::= ddns_domains
                | unknown_map_entry

  ddns_domains ::= "ddns-domains" ":" "[" ddns_domain_list "]"

  sub_ddns_domains ::= "[" ddns_domain_list "]"

  ddns_domain_list ::=
                  | not_empty_ddns_domain_list

  not_empty_ddns_domain_list ::= ddns_domain
                            | not_empty_ddns_domain_list "," ddns_domain
                            | not_empty_ddns_domain_list ","

  ddns_domain ::= "{" ddns_domain_params "}"

  sub_ddns_domain ::= "{" ddns_domain_params "}"

  ddns_domain_params ::= ddns_domain_param
                    | ddns_domain_params "," ddns_domain_param
                    | ddns_domain_params ","

  ddns_domain_param ::= ddns_domain_name
                   | ddns_key_name
                   | dns_servers
                   | user_context
                   | comment
                   | unknown_map_entry

  ddns_domain_name ::= "name" ":" STRING

  ddns_key_name ::= "key-name" ":" STRING

  dns_servers ::= "dns-servers" ":" "[" dns_server_list "]"

  sub_dns_servers ::= "[" dns_server_list "]"

  dns_server_list ::= dns_server
                 | dns_server_list "," dns_server
                 | dns_server_list ","

  dns_server ::= "{" dns_server_params "}"

  sub_dns_server ::= "{" dns_server_params "}"

  dns_server_params ::= dns_server_param
                   | dns_server_params "," dns_server_param
                   | dns_server_params ","

  dns_server_param ::= dns_server_hostname
                  | dns_server_ip_address
                  | dns_server_port
                  | ddns_key_name
                  | user_context
                  | comment
                  | unknown_map_entry

  dns_server_hostname ::= "hostname" ":" STRING

  dns_server_ip_address ::= "ip-address" ":" STRING

  dns_server_port ::= "port" ":" INTEGER

  tsig_keys ::= "tsig-keys" ":" "[" tsig_keys_list "]"

  sub_tsig_keys ::= "[" tsig_keys_list "]"

  tsig_keys_list ::=
                | not_empty_tsig_keys_list

  not_empty_tsig_keys_list ::= tsig_key
                          | not_empty_tsig_keys_list "," tsig_key
                          | not_empty_tsig_keys_list ","

  tsig_key ::= "{" tsig_key_params "}"

  sub_tsig_key ::= "{" tsig_key_params "}"

  tsig_key_params ::= tsig_key_param
                 | tsig_key_params "," tsig_key_param
                 | tsig_key_params ","

  tsig_key_param ::= tsig_key_name
                | tsig_key_algorithm
                | tsig_key_digest_bits
                | tsig_key_secret
                | user_context
                | comment
                | unknown_map_entry

  tsig_key_name ::= "name" ":" STRING

  tsig_key_algorithm ::= "algorithm" ":" STRING

  tsig_key_digest_bits ::= "digest-bits" ":" INTEGER

  tsig_key_secret ::= "secret" ":" STRING

  control_socket ::= "control-socket" ":" "{" control_socket_params "}"

  control_socket_params ::= control_socket_param
                       | control_socket_params "," control_socket_param
                       | control_socket_params ","

  control_socket_param ::= control_socket_type
                      | control_socket_name
                      | user_context
                      | comment
                      | unknown_map_entry

  control_socket_type ::= "socket-type" ":" STRING

  control_socket_name ::= "socket-name" ":" STRING

  hooks_libraries ::= "hooks-libraries" ":" "[" hooks_libraries_list "]"

  hooks_libraries_list ::=
                      | not_empty_hooks_libraries_list

  not_empty_hooks_libraries_list ::= hooks_library
                                | not_empty_hooks_libraries_list "," hooks_library
                                | not_empty_hooks_libraries_list ","

  hooks_library ::= "{" hooks_params "}"

  sub_hooks_library ::= "{" hooks_params "}"

  hooks_params ::= hooks_param
              | hooks_params "," hooks_param
              | hooks_params ","
              | unknown_map_entry

  hooks_param ::= library
             | parameters

  library ::= "library" ":" STRING

  parameters ::= "parameters" ":" map_value

  loggers ::= "loggers" ":" "[" loggers_entries "]"

  loggers_entries ::= logger_entry
                 | loggers_entries "," logger_entry
                 | loggers_entries ","

  logger_entry ::= "{" logger_params "}"

  logger_params ::= logger_param
               | logger_params "," logger_param
               | logger_params ","

  logger_param ::= name
              | output_options_list
              | debuglevel
              | severity
              | user_context
              | comment
              | unknown_map_entry

  name ::= "name" ":" STRING

  debuglevel ::= "debuglevel" ":" INTEGER

  severity ::= "severity" ":" STRING

  output_options_list ::= "output_options" ":" "[" output_options_list_content "]"

  output_options_list_content ::= output_entry
                             | output_options_list_content "," output_entry
                             | output_options_list_content ","

  output_entry ::= "{" output_params_list "}"

  output_params_list ::= output_params
                    | output_params_list "," output_params
                    | output_params_list ","

  output_params ::= output
               | flush
               | maxsize
               | maxver
               | pattern

  output ::= "output" ":" STRING

  flush ::= "flush" ":" BOOLEAN

  maxsize ::= "maxsize" ":" INTEGER

  maxver ::= "maxver" ":" INTEGER

  pattern ::= "pattern" ":" STRING

BNF Grammar for the Kea NETCONF Agent

This grammar is generated from netconf_parser.yy. See YANG/NETCONF for more details.

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  Grammar

  $accept ::= start EOF

  start ::= START_JSON json

  start ::= START_NETCONF netconf_syntax_map

  start ::= START_SUB_NETCONF sub_netconf

  sub_netconf ::= "{" global_params "}"

  json ::= value

  value ::= INTEGER
       | FLOAT
       | BOOLEAN
       | STRING
       | NULL
       | map
       | list_generic

  map ::= "{" map_content "}"

  map_value ::= map

  map_content ::=
             | not_empty_map

  not_empty_map ::= STRING ":" value
               | not_empty_map "," STRING ":" value
               | not_empty_map ","

  list_generic ::= "[" list_content "]"

  list_content ::=
              | not_empty_list

  not_empty_list ::= value
                | not_empty_list "," value
                | not_empty_list ","

  unknown_map_entry ::= STRING ":"

  netconf_syntax_map ::= "{" global_object "}"

  global_object ::= "Netconf" ":" "{" global_params "}"
               | global_object_comma

  global_object_comma ::= global_object ","

  global_params ::=
               | not_empty_global_params

  not_empty_global_params ::= global_param
                         | not_empty_global_params "," global_param
                         | not_empty_global_params ","

  global_param ::= boot_update
              | subscribe_changes
              | validate_changes
              | managed_servers
              | hooks_libraries
              | loggers
              | user_context
              | comment
              | unknown_map_entry

  boot_update ::= "boot-update" ":" BOOLEAN

  subscribe_changes ::= "subscribe-changes" ":" BOOLEAN

  validate_changes ::= "validate-changes" ":" BOOLEAN

  user_context ::= "user-context" ":" map_value

  comment ::= "comment" ":" STRING

  hooks_libraries ::= "hooks-libraries" ":" "[" hooks_libraries_list "]"

  hooks_libraries_list ::=
                      | not_empty_hooks_libraries_list

  not_empty_hooks_libraries_list ::= hooks_library
                                | not_empty_hooks_libraries_list "," hooks_library
                                | not_empty_hooks_libraries_list ","

  hooks_library ::= "{" hooks_params "}"

  hooks_params ::= hooks_param
              | hooks_params "," hooks_param
              | hooks_params ","
              | unknown_map_entry

  hooks_param ::= library
             | parameters

  library ::= "library" ":" STRING

  parameters ::= "parameters" ":" map_value

  managed_servers ::= "managed-servers" ":" "{" servers_entries "}"

  servers_entries ::=
                 | not_empty_servers_entries

  not_empty_servers_entries ::= server_entry
                           | not_empty_servers_entries "," server_entry
                           | not_empty_servers_entries ","

  server_entry ::= dhcp4_server
              | dhcp6_server
              | d2_server
              | ca_server
              | unknown_map_entry

  dhcp4_server ::= "dhcp4" ":" "{" managed_server_params "}"

  dhcp6_server ::= "dhcp6" ":" "{" managed_server_params "}"

  d2_server ::= "d2" ":" "{" managed_server_params "}"

  ca_server ::= "ca" ":" "{" managed_server_params "}"

  managed_server_params ::= managed_server_param
                       | managed_server_params "," managed_server_param
                       | managed_server_params ","

  managed_server_param ::= model
                      | boot_update
                      | subscribe_changes
                      | validate_changes
                      | control_socket
                      | user_context
                      | comment
                      | unknown_map_entry

  model ::= "model" ":" STRING

  control_socket ::= "control-socket" ":" "{" control_socket_params "}"

  control_socket_params ::= control_socket_param
                       | control_socket_params "," control_socket_param
                       | control_socket_params ","

  control_socket_param ::= socket_type
                      | socket_name
                      | socket_url
                      | user_context
                      | comment
                      | unknown_map_entry

  socket_type ::= "socket-type" ":" socket_type_value

  socket_type_value ::= "unix"
                   | "http"
                   | "stdout"

  socket_name ::= "socket-name" ":" STRING

  socket_url ::= "socket-url" ":" STRING

  loggers ::= "loggers" ":" "[" loggers_entries "]"

  loggers_entries ::= logger_entry
                 | loggers_entries "," logger_entry
                 | loggers_entries ","

  logger_entry ::= "{" logger_params "}"

  logger_params ::= logger_param
               | logger_params "," logger_param
               | logger_params ","

  logger_param ::= name
              | output_options_list
              | debuglevel
              | severity
              | user_context
              | comment
              | unknown_map_entry

  name ::= "name" ":" STRING

  debuglevel ::= "debuglevel" ":" INTEGER

  severity ::= "severity" ":" STRING

  output_options_list ::= "output_options" ":" "[" output_options_list_content "]"

  output_options_list_content ::= output_entry
                             | output_options_list_content "," output_entry
                             | output_options_list_content ","

  output_entry ::= "{" output_params_list "}"

  output_params_list ::= output_params
                    | output_params_list "," output_params
                    | output_params_list ","

  output_params ::= output
               | flush
               | maxsize
               | maxver
               | pattern

  output ::= "output" ":" STRING

  flush ::= "flush" ":" BOOLEAN

  maxsize ::= "maxsize" ":" INTEGER

  maxver ::= "maxver" ":" INTEGER

  pattern ::= "pattern" ":" STRING