Add parameter hwtimestamps

REFERENCE.md

@@ -483,3 +483,11 @@ See [clientloglimit](https://chrony.tuxfamily.org/doc/3.4/chrony.conf.html#clien
 
 Default value: `undef`
 
+##### `hwtimestamps`
+
+Data type: `Variant[Hash,Array[String]]`
+
+This selects interfaces to enable hardware timestamps on. It can be an array of interfaces
+or a hash of interfaces to ther respective options.
+
+Default value: []

manifests/init.pp

@@ -172,6 +172,9 @@
 #   Keep RTC in UTC instead of local time.
 #   If not set, chrony's, default will be used. On Arch Linux the default is true instead.
 #   See [rtconutc](https://chrony.tuxfamily.org/doc/3.4/chrony.conf.html#rtconutc)
+# @param hwtimestamps
+#   This selects interfaces to enable hardware timestamps on. It can be an array of
+#   interfaces or a hash of interfaces to their respective options.
 class chrony (
   Array[String] $bindcmdaddress                                    = ['127.0.0.1', '::1'],
   Array[String] $cmdacl                                            = $chrony::params::cmdacl,
@@ -222,6 +225,7 @@
   Optional[Float] $maxslewrate                                     = undef,
   Optional[Numeric] $stratumweight                                 = undef,
   Boolean $rtconutc                                                = $chrony::params::rtconutc,
+  Variant[Hash,Array[String]] $hwtimestamps                        = [],
 ) inherits chrony::params {
 
   if ! $config_keys_manage and $chrony_password != 'unset'  {

templates/chrony.conf.epp

@@ -120,3 +120,12 @@ smoothtime <%= $chrony::smoothtime %>
 # https://chrony.tuxfamily.org/doc/3.4/chrony.conf.html#rtconutc
 rtconutc
 <% } -%>
+<% if ! $chrony::hwtimestamps.empty { -%>
+
+# Enable hardware timestamping of NTP packets sent to and received from the specified
+# network interface. If the specified interface is *, chronyd will try to enable HW
+# timestamping on all available interfaces.
+<%   $chrony::hwtimestamps.each |$interface| { -%>
+hwtimestamp <%= $interface.flatten.join(' ') %>
+<%   } -%>
+<% } -%>