[bug#60800] [PATCH] services: connman: Add option to disable wpa-supplicant.

[bug#60800] [PATCH] services: connman: Add option to disable wpa-supplicant.

[Declan Tsien]

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I am starting a new thread and will close the old one, since the subject
changed. Not sure this is the right way.
This is a follow-up of https://issues.guix.gnu.org/60752

As Bruno Victal <mirai@makinata.eu> writes:

> Hi,
>
> Does connman absolutely require a wireless adapter backend?
> IMO if that's not the case, neither iwd nor wpa-supplicant backends should be pulled by connman. (or at least they should be required only if they are present among the services field)
> This is because not every machine comes or wants to use a wireless adapter.
>
>
> Cheers,
> Bruno

This patch allows users to disable wireless adapters or hook in a another
implementation like iwd, without breaking existing installations.


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From 379d4afac343101a2351bab4f314496395828d8d Mon Sep 17 00:00:00 2001
From: Declan Tsien <declantsien@riseup.net>
Date: Sat, 14 Jan 2023 08:57:02 +0800
Subject: [PATCH] services: connman: Add option to disable wpa-supplicant.

* gnu/services/networking.scm
(connman-configuration)[disable-wpa-supplicant?]: New field.
(connman-shepherd-service): Applied disable-wpa-supplicant? logic.

* doc/guix.texi: Add information about connman-configuration
disable-wpa-supplicant? option.
---
 doc/guix.texi               |  4 ++++
 gnu/services/networking.scm | 20 ++++++++++++--------
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/doc/guix.texi b/doc/guix.texi
index 751d0957d8..29be830bd4 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -19726,6 +19726,10 @@ The connman package to use.
 
 @item @code{disable-vpn?} (default: @code{#f})
 When true, disable connman's vpn plugin.
+
+@item @code{disable-wpa-supplicant?} (default: @code{#f})
+When true, remove @code{wpa-supplicant} requirement. Let users disable
+wireless adapters or hook in a another implementation like @code{iwd}.
 @end table
 @end deftp
 
diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm
index 702404bc6c..39162fe822 100644
--- a/gnu/services/networking.scm
+++ b/gnu/services/networking.scm
@@ -19,6 +19,7 @@
 ;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
 ;;; Copyright © 2021 Guillaume Le Vaillant <glv@posteo.net>
 ;;; Copyright © 2022 Andrew Tropin <andrew@trop.in>
+;;; Copyright © 2023 Declan Tsien <declantsien@riseup.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1262,10 +1263,12 @@ (define network-manager-service-type
 (define-record-type* <connman-configuration>
   connman-configuration make-connman-configuration
   connman-configuration?
-  (connman      connman-configuration-connman
-                (default connman))
-  (disable-vpn? connman-configuration-disable-vpn?
-                (default #f)))
+  (connman                 connman-configuration-connman
+                           (default connman))
+  (disable-vpn?            connman-configuration-disable-vpn?
+                           (default #f))
+  (disable-wpa-supplicant? connman-configuration-disable-wpa-supplicant?
+                           (default #f)))
 
 (define (connman-activation config)
   (let ((disable-vpn? (connman-configuration-disable-vpn? config)))
@@ -1280,13 +1283,14 @@ (define (connman-shepherd-service config)
   "Return a shepherd service for Connman"
   (and
    (connman-configuration? config)
-   (let ((connman      (connman-configuration-connman config))
-         (disable-vpn? (connman-configuration-disable-vpn? config)))
+   (let ((connman                 (connman-configuration-connman config))
+         (disable-vpn?            (connman-configuration-disable-vpn? config))
+         (disable-wpa-supplicant? (connman-configuration-disable-wpa-supplicant? config)))
      (list (shepherd-service
             (documentation "Run Connman")
             (provision '(networking))
-            (requirement
-             '(user-processes dbus-system loopback wpa-supplicant))
+            (requirement (append '(user-processes dbus-system loopback)
+                                 (if disable-wpa-supplicant? '() '(wpa-supplicant))))
             (start #~(make-forkexec-constructor
                       (list (string-append #$connman
                                            "/sbin/connmand")
-- 
2.38.1


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