0257ce3d31
This creates mDNS responder and serves configured IP addresses to the callers which want to resolve .local addresses. Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
164 lines
3.9 KiB
Plaintext
164 lines
3.9 KiB
Plaintext
#
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# Copyright (c) 2016 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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config DNS_RESOLVER
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bool
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prompt "DNS resolver"
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default n
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help
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This option enables the DNS client side support for Zephyr
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if DNS_RESOLVER
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config MDNS_RESOLVER
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bool "Enable mDNS support"
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default n
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help
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This option enables multicast DNS client side support.
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See RFC 6762 for details.
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config DNS_RESOLVER_ADDITIONAL_BUF_CTR
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int
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prompt "Additional DNS buffers"
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default 0
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help
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Number of additional buffers available for the DNS resolver.
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The DNS resolver requires at least one buffer. This option
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enables additional buffers required for multiple concurrent
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DNS connections.
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config DNS_RESOLVER_ADDITIONAL_QUERIES
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int
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prompt "Additional DNS queries"
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range 0 2
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default 1
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help
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Number of additional DNS queries that the DNS resolver may
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generate when the RR ANSWER only contains CNAME(s).
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The maximum value of this variable is constrained to avoid
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'alias loops'.
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config DNS_RESOLVER_MAX_SERVERS
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int "Number of DNS server addresses"
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range 1 NET_MAX_CONTEXTS
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default 1
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help
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Max number of DNS servers that we can connect to. Normally one
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DNS server is enough. Each connection to DNS server will use one
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network context.
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menuconfig DNS_SERVER_IP_ADDRESSES
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bool "Set DNS server IP addresses"
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default n
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help
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Allow DNS IP addresses to be set in config file for
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networking applications.
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if DNS_SERVER_IP_ADDRESSES
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config DNS_SERVER1
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string "DNS server 1"
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default ""
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help
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DNS server IP address 1. The address can be either IPv4 or IPv6
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address. An optional port number can be given.
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Following syntax is supported:
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192.0.2.1
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192.0.2.1:5353
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2001:db8::1
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[2001:db8::1]:5353
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It is not mandatory to use this Kconfig option at all.
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The one calling dns_resolve_init() can use this option or not
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to populate the server list. If the DNS server addresses are
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set here, then we automatically create default DNS context
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for the user.
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config DNS_SERVER2
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string "DNS server 2"
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default ""
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help
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See help in "DNS server 1" option.
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config DNS_SERVER3
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string "DNS server 3"
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default ""
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help
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See help in "DNS server 1" option.
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config DNS_SERVER4
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string "DNS server 4"
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default ""
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help
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See help in "DNS server 1" option.
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config DNS_SERVER5
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string "DNS server 5"
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default ""
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help
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See help in "DNS server 1" option.
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endif # DNS_SERVER_IP_ADDRESSES
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config DNS_NUM_CONCUR_QUERIES
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int "Number of simultaneous DNS queries per one DNS context"
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default 1
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help
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This defines how many concurrent DNS queries can be generated using
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same DNS context. Normally 1 is a good default value.
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config NET_DEBUG_DNS_RESOLVE
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bool "Debug DNS resolver"
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default n
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default y if NET_LOG_GLOBAL
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help
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Enables DNS resolver code to output debug messages
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endif # DNS_RESOLVER
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config MDNS_RESPONDER
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bool "mDNS responder"
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default n
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select NET_IPV6_MLD if NET_IPV6
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depends on NET_HOSTNAME_ENABLE
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help
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This option enables the mDNS responder support for Zephyr.
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It will listen well-known address ff02::fb and 224.0.0.251.
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Currently this only returns IP address information.
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You must set CONFIG_NET_HOSTNAME to some meaningful value and
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then mDNS will start to respond to <hostname>.local mDNS queries.
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See RFC 6762 for more details about mDNS.
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if MDNS_RESPONDER
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config MDNS_RESPONDER_TTL
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int "Time-to-Live of returned DNS name"
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default 600
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help
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DNS answers will use the TTL (in seconds).
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config MDNS_RESPONDER_INIT_PRIO
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int "Startup priority for the mDNS responder init"
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default 96
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help
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Note that if NET_APP_AUTO_INIT is enabled, then this value
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should be bigger than its value.
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config NET_DEBUG_MDNS_RESPONDER
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bool "Debug mDNS responder"
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default n
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default y if NET_LOG_GLOBAL
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help
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Enables mDNS responder code to output debug messages
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config MDNS_RESOLVER_ADDITIONAL_BUF_CTR
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int
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prompt "Additional DNS buffers"
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default 0
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help
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Number of additional buffers available for the mDNS responder.
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endif # MDNS_RESPONDER
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