Re: [PATCH 2/2] services: Add tlsdate-service.

[ng0 <ng0@libertad.pw>]

ng0 <ng0@libertad.pw> writes:

> * gnu/services/networking.scm (<tlsdate-configuration>): New record type.
> (%tlsdate-accounts): New variables.
> (tlsdate-shepherd-service): New procedure.
> (tlsdate-service-type): New variable.
> * doc/guix.texi (Networking Services): Document it.
> ---
>  doc/guix.texi               | 32 +++++++++++++++++
>  gnu/services/networking.scm | 84 ++++++++++++++++++++++++++++++++++++++++++++-
>  2 files changed, 115 insertions(+), 1 deletion(-)
>
> diff --git a/doc/guix.texi b/doc/guix.texi
> index 4d7f96d90..f6efd040d 100644
> --- a/doc/guix.texi
> +++ b/doc/guix.texi
> @@ -8594,6 +8594,38 @@ make an initial adjustment of more than 1,000 seconds.
>  List of host names used as the default NTP servers.
>  @end defvr
>  
> +@cindex tlsdate
> +@deffn {Scheme Procedure} tlsdate-service [#:config (tlsdate-configuration)]
> +
> +Return a service that runs @command{tlsdate}, a simple TCP based time service.
> +The daemon will synchronize the system clock with a server of your
> +choice via TCP at boot.
> +
> +The optional @var{config} argument should be a
> +@code{<tlsdate-configuration>} object, by default it syncs the time with gnu.org.
> +
> +@end deffn
> +
> +@deftp {Data Type} tlsdate-configuration
> +Data type representing the configuration of tlsdate.
> +
> +@table @asis
> +@item @code{package} (default: @var{tlsdate})
> +Package object of the tlsdate time service.
> +
> +@item @code{port} (default: @var{'()})
> +Set the port of the remote hostname which should be used.
> +
> +@item @code{host} (default: @var{"gnu.org"})
> +Set the remote hostname which will be queried. Defaults to @code{gnu.org}.
> +
> +@item @code{extra-options} (default: @var{'()})
> +Extra options will be passed to @code{tlsdate}, please run
> +@command{man tlsdate} for more information.
> +
> +@end table
> +@end deftp
> +
>  @cindex Tor
>  @deffn {Scheme Procedure} tor-service [@var{config-file}] [#:tor @var{tor}]
>  Return a service to run the @uref{https://torproject.org, Tor} anonymous
> diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm
> index d672ecf68..ab19bcb0e 100644
> --- a/gnu/services/networking.scm
> +++ b/gnu/services/networking.scm
> @@ -3,6 +3,7 @@
>  ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
>  ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
>  ;;; Copyright © 2016 John Darrington <jmd@gnu.org>
> +;;; Copyright © 2016 ng0 <ng0@libertad.pw>
>  ;;;
>  ;;; This file is part of GNU Guix.
>  ;;;
> @@ -66,7 +67,13 @@
>              wicd-service
>              network-manager-service
>              connman-service
> -            wpa-supplicant-service-type))
> +            wpa-supplicant-service-type
> +
> +            tlsdate-service
> +            tlsdate-configuration
> +            tlsdate-service-type
> +            tlsdate-configuration?
> +            tlsdate-configuration))
>  
>  ;;; Commentary:
>  ;;;
> @@ -360,6 +367,81 @@ make an initial adjustment of more than 1,000 seconds."
>  
>  \f
>  ;;;
> +;;; tlsdate
> +;;;
> +
> +(define-record-type* <tlsdate-configuration>
> +  tlsdate-configuration make-tlsdate-configuration
> +  tlsdate-configuration?
> +  (package        tlsdate-configuration-package
> +                  (default tlsdate))
> +  (host           tlsdate-configuration-host
> +                  (default "gnu.org"))
> +  (port           tlsdate-configuration-port
> +                  (default #f))
> +  (extra-options  tlsdate-configuration-extra-options
> +                  (default '())))
> +
> +(define %tlsdate-accounts
> +  (list (user-group (name "tlsdate") (system? #t))
> +        (user-account
> +         (name "tlsdate")
> +         (group "tlsdate")
> +         (system? #t)
> +         (comment "tlsdate daemon user")
> +         (home-directory "/var/empty")
> +         (shell (file-append shadow "/sbin/nologin")))))
> +
> +(define tlsdate-shepherd-service
> +  (match-lambda
> +    (($ <tlsdate-configuration>
> +        package host port extra-options)
> +     (let* ((tlsdate (file-append package "/bin/tlsdate"))
> +            (command `(,tlsdate
> +                       "-l" ; leap
> +                       "-t" ; timewarp
> +                       ,@(if host
> +                             `(,(string-append
> +                                 "-H" " " host))
> +                             '())
> +                       ,@(if port
> +                             `(,(string-append
> +                                 "-p" " " (number->string port)))
> +                             '())
> +                       ,@extra-options)))
> +       (list (shepherd-service
> +              ;;(provision '(tlsdate))
> +              (provision '(ntp))
> +              ;; tlsdate needs at least one network interface to be up, hence the
> +              ;; dependency on 'loopback'.
> +              (requirement '(user-processes dbus-system loopback syslogd))
                                               ^__ remains from
                                               the time where I
                                               tried to enable
                                               the dbus
                                               functionality. I'll
                                               send a new patch.
> +
> +              (start #~(make-forkexec-constructor '#$command
> +                                                  #:user "tlsdate"
> +                                                  #:group "tlsdate"))
> +              (stop #~(make-kill-destructor))
> +              (documentation "Run the tlsdate service.")))))))
> +
> +(define tlsdate-service-type
> +  (service-type
> +   (name 'tlsdate)
> +   (extensions
> +    (list (service-extension shepherd-root-service-type
> +                             tlsdate-shepherd-service)
> +          (service-extension account-service-type
> +                             (const %tlsdate-accounts))))))
> +
> +(define* (tlsdate-service #:key (config (tlsdate-configuration)))
> +  "Return a service that runs @command{tlsdate}, a simple TCP based
> +time service.
> +
> +The optional @var{config} argument should be a
> +@code{<tlsdate-configuration>} object, by default it querries gnu.org
> +for time once at boot."
> +  (service tlsdate-service-type config))
> +
> +\f
> +;;;
>  ;;; Tor.
>  ;;;
>  
> -- 
> 2.11.0
>
>

-- 
♥Ⓐ  ng0  | ng0.chaosnet.org