GNU bug report logs - #75145
[PATCH] services: NetworkManager: configuration-directory

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From: 45mg <45mg.writes <at> gmail.com>
To: 75145 <at> debbugs.gnu.org
Cc: Arnaud Daby-Seesaram <ds-ac <at> nanein.fr>, 45mg <45mg.writes <at> gmail.com>, Ludovic Courtès <ludo <at> gnu.org>, Maxim Cournoyer <maxim.cournoyer <at> gmail.com>, Ludovic Courtès <ludo <at> gnu.org>, Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Subject: [bug#75145] [PATCH v3] services: network-manager: Add extra-configuration-files field.
Date: Sun,  2 Feb 2025 01:19:26 +0530

Allow users to specify additional configuration files for
NetworkManager. These files will be added to
`/etc/NetworkManager/conf.d` (NetworkManager's default configuration
directory location).

* gnu/services/networking.scm (<network-manager-configuration>)
[extra-configuration-files]: New field.
(network-manager-activation): Honor the new field.
* doc/guix.texi (Networking Setup): Document the new field.

Change-Id: I07479958e4d0aa318328c666a9630b779230b300
---
 doc/guix.texi               | 21 +++++++++++++++++++++
 gnu/services/networking.scm | 13 +++++++++++--
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/doc/guix.texi b/doc/guix.texi
index b1b6d98e74..58ce4663c3 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -21541,6 +21541,27 @@ Networking Setup
 (VPNs).  An example of this is the @code{network-manager-openvpn}
 package, which allows NetworkManager to manage VPNs @i{via} OpenVPN.
 
+@item @code{extra-configuration-files} (default: @code{'()})
+An alist of file names to file-like objects, representing configuration
+files which will be added to @file{/etc/NetworkManager/conf.d}.
+NetworkManager will read additional configuration from this directory.
+For details on configuration file precedence and the configuration file
+format, see the @command{NetworkManager.conf(5)} man page.
+
+For example, to add two files @file{001-basic.conf} and
+@file{002-unmanaged.conf}:
+
+@lisp
+(service network-manager-service-type
+         (network-manager-configuration
+          (extra-configuration-files
+           `(("existing-file" ,(local-file "001-basic.conf"))
+             ("constructed-file" ,(plain-file "002-unmanaged.conf"
+                                              "[keyfile]
+unmanaged-devices=interface-name:wlo1_ap
+"))))))
+@end lisp
+
 @end table
 @end deftp
 
diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm
index af28bd0626..4e455cc114 100644
--- a/gnu/services/networking.scm
+++ b/gnu/services/networking.scm
@@ -23,6 +23,7 @@
 ;;; Copyright © 2023 Bruno Victal <mirai <at> makinata.eu>
 ;;; Copyright © 2023 muradm <mail <at> muradm.net>
 ;;; Copyright © 2024 Nigko Yerden <nigko.yerden <at> gmail.com>
+;;; Copyright © 2025 45mg <45mg.writes <at> gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1253,18 +1254,26 @@ (define-record-type* <network-manager-configuration>
                (default '()))
   (iwd? network-manager-configuration-iwd?  ; TODO: deprecated field, remove.
         (default #f)
-        (sanitize warn-iwd?-field-deprecation)))
+        (sanitize warn-iwd?-field-deprecation))
+  (extra-configuration-files network-manager-configuration-extra-configuration-files
+                             (default '())))  ;alist of file names to file-like objects
 
 (define (network-manager-activation config)
   ;; Activation gexp for NetworkManager
   (match-record config <network-manager-configuration>
-    (network-manager dns vpn-plugins)
+                (network-manager dns vpn-plugins extra-configuration-files)
     #~(begin
         (use-modules (guix build utils))
         (mkdir-p "/etc/NetworkManager/system-connections")
         #$@(if (equal? dns "dnsmasq")
                ;; create directory to store dnsmasq lease file
                '((mkdir-p "/var/lib/misc"))
+               '())
+        #$@(if extra-configuration-files
+               `((symlink
+                  ,(file-union "network-manager-configuration-directory"
+                               extra-configuration-files)
+                  "/etc/NetworkManager/conf.d"))
                '()))))
 
 (define (vpn-plugin-directory plugins)

base-commit: b85d20e853192a92093cd8d6a5756ec80e94c658
-- 
2.48.1

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