# SPDX-License-Identifier: GPL-2.0-only

  #
  # Configuration for DNS Resolver
  #
  config DNS_RESOLVER
  	tristate "DNS Resolver support"
  	depends on NET && KEYS
  	help
  	  Saying Y here will include support for the DNS Resolver key type
  	  which can be used to make upcalls to perform DNS lookups in
  	  userspace.
  
  	  DNS Resolver is used to query DNS server for information.  Examples
  	  being resolving a UNC hostname element to an IP address for CIFS or
  	  performing a DNS query for AFSDB records so that AFS can locate a
  	  cell's volume location database servers.
  
  	  DNS Resolver is used by the CIFS and AFS modules, and would support

  	  SMB2 later.  DNS Resolver is supported by the userspace upcall

  	  helper "/sbin/dns.resolver" via /etc/request-key.conf.

  	  See <file:Documentation/networking/dns_resolver.rst> for further

  	  information.
  
  	  To compile this as a module, choose M here: the module will be called
  	  dnsresolver.
  
  	  If unsure, say N.