service: dnsmasq: Add ipv4? and ipv6? configuration options.

* gnu/services/dns.scm (<dnsmasq-configuration>) [ipv4?, ipv6?]: New fields.
(dnsmasq-shepherd-service): Use them.
* doc/guix.texi (DNS Services): Document them.

Change-Id: I50a4e407cea9e55295c9cfff081b7678ab7e061c

1 files changed, 6 insertions, 0 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 0cb9b513caf..7a8ec55b956 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -38201,6 +38201,12 @@ ie a subnet for which an interface exists on the server.
 @item @code{listen-addresses} (default: @code{'()})
 Listen on the given IP addresses.
 
+@item @code{ipv4?} (default: @code{#t})
+Whether to include A records in answers.
+
+@item @code{ipv6?} (default: @code{#t})
+Whether to include AAAA records in answers.
+
 @item @code{resolv-file} (default: @code{"/etc/resolv.conf"})
 The file to read the IP address of the upstream nameservers from.