net/dns_resolver/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # Configuration for DNS Resolver
   4 #
   5 config DNS_RESOLVER
   6         tristate "DNS Resolver support"
   7         depends on NET && KEYS
   8         help
   9           Saying Y here will include support for the DNS Resolver key type
  10           which can be used to make upcalls to perform DNS lookups in
  11           userspace.
  12
  13           DNS Resolver is used to query DNS server for information.  Examples
  14           being resolving a UNC hostname element to an IP address for CIFS or
  15           performing a DNS query for AFSDB records so that AFS can locate a
  16           cell's volume location database servers.
  17
  18           DNS Resolver is used by the CIFS and AFS modules, and would support
  19           SMB2 later.  DNS Resolver is supported by the userspace upcall
  20           helper "/sbin/dns.resolver" via /etc/request-key.conf.
  21
  22           See <file:Documentation/networking/dns_resolver.txt> for further
  23           information.
  24
  25           To compile this as a module, choose M here: the module will be called
  26           dnsresolver.
  27
  28           If unsure, say N.