| # Copyright (c) 2016 Intel Corporation |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config DNS_RESOLVER |
| bool "DNS resolver" |
| depends on NET_NATIVE |
| select CRC |
| help |
| This option enables the DNS client side support for Zephyr |
| |
| if DNS_RESOLVER |
| |
| config DNS_RESOLVER_AUTO_INIT |
| bool "Automatically initialize the default DNS context" |
| default y |
| help |
| Automatically initialize the default DNS context so dns_resolve_init |
| does not need to be manually called. |
| |
| config MDNS_RESOLVER |
| bool "MDNS support" |
| help |
| This option enables multicast DNS client side support. |
| See RFC 6762 for details. |
| |
| config LLMNR_RESOLVER |
| bool "LLMNR support" |
| help |
| This option enables link local multicast name resolution client side |
| support. See RFC 4795 for details. LLMNR is typically used by Windows |
| hosts. If you enable this option, then the DNS requests are ONLY sent |
| to LLMNR well known multicast address 224.0.0.252:5355 or |
| [ff02::1:3]:5355 and other DNS server addresses are ignored. |
| |
| |
| config DNS_RESOLVER_ADDITIONAL_BUF_CTR |
| int "Additional DNS buffers" |
| default 0 |
| help |
| Number of additional buffers available for the DNS resolver. |
| The DNS resolver requires at least one buffer. This option |
| enables additional buffers required for multiple concurrent |
| DNS connections. |
| |
| config DNS_RESOLVER_ADDITIONAL_QUERIES |
| int "Additional DNS queries" |
| range 0 2 |
| default 1 |
| help |
| Number of additional DNS queries that the DNS resolver may |
| generate when the RR ANSWER only contains CNAME(s). |
| The maximum value of this variable is constrained to avoid |
| 'alias loops'. |
| |
| config DNS_RESOLVER_AI_MAX_ENTRIES |
| int "Maximum number of IP addresses for DNS name" |
| default 2 |
| help |
| Defines the max number of IP addresses per domain name |
| resolution the DNS resolver can handle. |
| |
| |
| config DNS_RESOLVER_MAX_SERVERS |
| int "Number of DNS server addresses" |
| range 1 NET_MAX_CONTEXTS |
| default 1 |
| help |
| Max number of DNS servers that we can connect to. Normally one |
| DNS server is enough. Each connection to DNS server will use one |
| network context. |
| |
| config DNS_RESOLVER_MAX_QUERY_LEN |
| int "Max length of a DNS query" |
| range 1 255 |
| default 255 |
| help |
| Max length of a DNS query that should be looked up including the |
| trailing 0. So e.g. "example.com" would have a query len of 12. |
| |
| menuconfig DNS_SERVER_IP_ADDRESSES |
| bool "Set DNS server IP addresses" |
| help |
| Allow DNS IP addresses to be set in config file for |
| networking applications. |
| |
| if DNS_SERVER_IP_ADDRESSES |
| |
| config DNS_SERVER1 |
| string "DNS server 1" |
| help |
| DNS server IP address 1. The address can be either IPv4 or IPv6 |
| address. An optional port number can be given. |
| Following syntax is supported: |
| 192.0.2.1 |
| 192.0.2.1:5353 |
| 2001:db8::1 |
| [2001:db8::1]:5353 |
| It is not mandatory to use this Kconfig option at all. |
| The one calling dns_resolve_init() can use this option or not |
| to populate the server list. If the DNS server addresses are |
| set here, then we automatically create default DNS context |
| for the user. |
| |
| config DNS_SERVER2 |
| string "DNS server 2" |
| help |
| See help in "DNS server 1" option. |
| |
| config DNS_SERVER3 |
| string "DNS server 3" |
| help |
| See help in "DNS server 1" option. |
| |
| config DNS_SERVER4 |
| string "DNS server 4" |
| help |
| See help in "DNS server 1" option. |
| |
| config DNS_SERVER5 |
| string "DNS server 5" |
| help |
| See help in "DNS server 1" option. |
| |
| endif # DNS_SERVER_IP_ADDRESSES |
| |
| config DNS_NUM_CONCUR_QUERIES |
| int "Number of simultaneous DNS queries per one DNS context" |
| default 1 |
| help |
| This defines how many concurrent DNS queries can be generated using |
| same DNS context. Normally 1 is a good default value. |
| |
| module = DNS_RESOLVER |
| module-dep = NET_LOG |
| module-str = Log level for DNS resolver |
| module-help = Enables DNS resolver code to output debug messages. |
| source "subsys/net/Kconfig.template.log_config.net" |
| |
| menuconfig DNS_RESOLVER_CACHE |
| bool "DNS resolver cache" |
| help |
| This option enables the dns resolver cache. DNS queries |
| will be cached based on TTL and delivered from cache |
| whenever possible. This reduces network usage. |
| |
| if DNS_RESOLVER_CACHE |
| |
| config DNS_RESOLVER_CACHE_MAX_ENTRIES |
| int "Number of cache entries supported by the dns cache" |
| default 6 |
| help |
| This defines how many entries the DNS cache can hold. If |
| not enough entries for caching are available the oldest |
| entry gets replaced. Adjusting this value will affect |
| RAM usage. |
| |
| endif # DNS_RESOLVER_CACHE |
| |
| endif # DNS_RESOLVER |
| |
| config MDNS_RESPONDER |
| bool "mDNS responder" |
| select NET_IPV4_IGMP if NET_IPV4 |
| select NET_IPV6_MLD if NET_IPV6 |
| select NET_MGMT |
| select NET_MGMT_EVENT |
| depends on NET_HOSTNAME_ENABLE |
| help |
| This option enables the mDNS responder support for Zephyr. |
| It will listen well-known address ff02::fb and 224.0.0.251. |
| Currently this only returns IP address information. |
| You must set CONFIG_NET_HOSTNAME to some meaningful value and |
| then mDNS will start to respond to <hostname>.local mDNS queries. |
| See RFC 6762 for more details about mDNS. |
| |
| if MDNS_RESPONDER |
| |
| config MDNS_RESPONDER_TTL |
| int "Time-to-Live of returned DNS name" |
| default 600 |
| help |
| DNS answers will use the TTL (in seconds). |
| |
| config MDNS_RESPONDER_INIT_PRIO |
| int "Startup priority for the mDNS responder init" |
| default 96 |
| help |
| Note that if NET_CONFIG_AUTO_INIT is enabled, then this value |
| should be bigger than its value. |
| |
| config MDNS_RESPONDER_DNS_SD |
| bool "DNS Service Discovery via mDNS" |
| default y |
| depends on DNS_SD |
| help |
| Selecting this option ensures that the MDNS Responder |
| processes PTR, SRV, and TXT records according to RFC 6763. |
| By doing so, Zephyr network services are discoverable |
| using e.g. 'avahi-browse -t -r _greybus._tcp'. |
| |
| if MDNS_RESPONDER_DNS_SD |
| config MDNS_RESPONDER_DNS_SD_SERVICE_TYPE_ENUMERATION |
| bool "DNS SD Service Type Enumeration" |
| default y |
| help |
| Selecting this option ensures that the MDNS Responder |
| performs DNS-SD Service Type Enumeration according to RFC 6763, |
| Chapter 9. By doing so, Zephyr network services are discoverable |
| using e.g. 'avahi-browse -t -r _services._dns-sd._udp.local'. |
| endif # MDNS_RESPONDER_DNS_SD |
| |
| module = MDNS_RESPONDER |
| module-dep = NET_LOG |
| module-str = Log level for mDNS responder |
| module-help = Enables mDNS responder code to output debug messages. |
| source "subsys/net/Kconfig.template.log_config.net" |
| |
| config MDNS_RESOLVER_ADDITIONAL_BUF_CTR |
| int "Additional DNS buffers" |
| default 0 |
| help |
| Number of additional buffers available for the mDNS responder. |
| |
| endif # MDNS_RESPONDER |
| |
| config LLMNR_RESPONDER |
| bool "LLMNR responder" |
| select NET_IPV4_IGMP if NET_IPV4 |
| select NET_IPV6_MLD if NET_IPV6 |
| select NET_MGMT |
| select NET_MGMT_EVENT |
| depends on NET_HOSTNAME_ENABLE |
| help |
| This option enables the LLMNR responder support for Zephyr. |
| It will listen well-known address ff02::1:3 and 224.0.0.252. |
| Currently this only returns IP address information. |
| You must set CONFIG_NET_HOSTNAME to some meaningful value and |
| then LLMNR will start to respond to <hostname> LLMNR queries. |
| Note that LLMNR queries should only contain single-label names |
| so there should be NO dot (".") in the name (RFC 4795 ch 3). |
| Current implementation does not support TCP. |
| See RFC 4795 for more details about LLMNR. |
| |
| if LLMNR_RESPONDER |
| |
| config LLMNR_RESPONDER_TTL |
| int "Time-to-Live of returned DNS name" |
| default 30 |
| help |
| DNS answers will use the TTL (in seconds). A default value is 30 |
| seconds as recommended by RFC 4795 chapter 2.8 |
| |
| config LLMNR_RESPONDER_INIT_PRIO |
| int "Startup priority for the LLMNR responder init" |
| default 96 |
| help |
| Note that if NET_CONFIG_AUTO_INIT is enabled, then this value |
| should be bigger than its value. |
| |
| module = LLMNR_RESPONDER |
| module-dep = NET_LOG |
| module-str = Log level for LLMNR responder |
| module-help = Enables LLMNR responder code to output debug messages. |
| source "subsys/net/Kconfig.template.log_config.net" |
| |
| config LLMNR_RESOLVER_ADDITIONAL_BUF_CTR |
| int "Additional DNS buffers" |
| default 0 |
| help |
| Number of additional buffers available for the LLMNR responder. |
| |
| endif # LLMNR_RESPONDER |
| |
| config DNS_SD |
| bool "DNS Service Discovery" |
| help |
| This option enables DNS Service Discovery for Zephyr. It can |
| be enabled for virtually any network service with only a few |
| lines of code and works for both Unicast and Multicast DNS. |
| See RFC 6763 for more details about DNS-SD. |
| |
| if DNS_SD |
| |
| module = DNS_SD |
| module-dep = NET_LOG |
| module-str = Log level for DNS-SD |
| module-help = Enables DNS Service Discovery code to output debug messages. |
| source "subsys/net/Kconfig.template.log_config.net" |
| |
| endif # DNS_SD |
