Subject: Re: What is the process from here?

From: fesoj000 <[email-masked]>
Date: Fri, 18 Mar 2022 22:48:30 +0100

On 3/18/22 9:06 PM, Liliana Marie Prikler wrote:
>> So, i assume that there has to be interest and time from a guix
>> developer to review, maybe test and then integrate the
>> changes/packages into one of the branches.
> Note that there have already been two people reviewing; you currently
> owe me a v2 addressing the TOCTOU "race" of creating the audit
> directory without 700 permissions.
Yes, that is true. But i addressed the rest, i think. New version inline.

 From 0605a2b5cc8beb816e3ff557d7be060a050f91b7 Mon Sep 17 00:00:00 2001
From: fesoj000 <[email-masked]>
Date: Wed, 9 Mar 2022 20:07:42 +0100
Subject: [PATCH] services: auditd: use exclusive log directory for auditd

Use /var/log/audit for auditd. This is the upstream default.

Further, rework the config file generated by auditd-service-type. Only
write values which diverge from the upstream default.

* gnu/services/auditd.scm: add auditd-activation function and extend
activation-service-type.
---
  gnu/services/auditd.scm | 20 +++++++++++++++-----
  1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/gnu/services/auditd.scm b/gnu/services/auditd.scm
index abde811f51..602a6c5a48 100644
--- a/gnu/services/auditd.scm
+++ b/gnu/services/auditd.scm
@@ -31,10 +31,10 @@ (define-module (gnu services auditd)
              %default-auditd-configuration-directory))
  
  (define auditd.conf
-  (plain-file "auditd.conf" "log_file = /var/log/audit.log\nlog_format = \
-ENRICHED\nfreq = 1\nspace_left = 5%\nspace_left_action = \
-syslog\nadmin_space_left_action = ignore\ndisk_full_action = \
-ignore\ndisk_error_action = syslog\n"))
+  (plain-file "auditd.conf" "\
+space_left = 5%
+space_left_action = syslog
+"))
  
  (define %default-auditd-configuration-directory
    (computed-file "auditd"
@@ -50,6 +50,14 @@ (define-record-type* <auditd-configuration>
                             (default audit))
    (configuration-directory auditd-configuration-configuration-directory))      ; file-like
  
+(define (auditd-activation config)
+  (with-imported-modules '((guix build utils))
+    #~(begin
+        (use-modules (guix build utils))
+        (let ((var-log-audit "/var/log/audit"))
+          (umask #o077)
+          (mkdir-p var-log-audit)))))
+
  (define (auditd-shepherd-service config)
    (let* ((audit (auditd-configuration-audit config))
           (configuration-directory (auditd-configuration-configuration-directory config)))
@@ -67,7 +75,9 @@ (define auditd-service-type
                  (extensions
                   (list
                    (service-extension shepherd-root-service-type
-                                     auditd-shepherd-service)))
+                                     auditd-shepherd-service)
+                  (service-extension activation-service-type
+                                     auditd-activation)))
                  (default-value
                    (auditd-configuration
                     (configuration-directory %default-auditd-configuration-directory)))))
-- 
2.34.0