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[bug#54309,PATCHv2] services: auditd: use exclusive log directory for auditd

Message ID e93a3c6e-0b66-de42-908c-6f521e8f4460@gmail.com
State New
Headers show
Series [bug#54309,PATCHv2] services: auditd: use exclusive log directory for auditd | expand

Commit Message

fesoj000 March 23, 2022, 8:22 p.m. UTC 
Use /var/log/audit for auditd. This is the upstream default.

* gnu/services/auditd.scm: add auditd-activation function and extend
activation-service-type.
---
  gnu/services/auditd.scm | 25 ++++++++++++++++++++-----
  1 file changed, 20 insertions(+), 5 deletions(-)
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Patch

diff --git a/gnu/services/auditd.scm b/gnu/services/auditd.scm
index abde811f51..8e3d5fd2bc 100644
--- a/gnu/services/auditd.scm
+++ b/gnu/services/auditd.scm
@@ -31,10 +31,15 @@  (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" "\
+log_format = ENRICHED
+freq = 1
+space_left = 5%
+space_left_action = syslog
+admin_space_left_action = ignore
+disk_full_action = ignore
+disk_error_action = syslog
+"))
  
  (define %default-auditd-configuration-directory
    (computed-file "auditd"
@@ -50,6 +55,14 @@  (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))
+        ;; ensure /var/log exists with default permissions
+        (mkdir-p "/var/log")
+        (mkdir-p/perm "/var/log/audit" (getpwnam "root") #o700))))
+
  (define (auditd-shepherd-service config)
    (let* ((audit (auditd-configuration-audit config))
           (configuration-directory (auditd-configuration-configuration-directory config)))
@@ -67,7 +80,9 @@  (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)))))