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authorLudovic Courtès <ludo@gnu.org>2014-09-11 23:23:07 +0200
committerLudovic Courtès <ludo@gnu.org>2014-09-12 00:14:52 +0200
commitee7bae3bbd2030d5f2cdb88e484e1c67a063e2a3 (patch)
treed48af1fc649fc562ce77d38cb3c93e68b6c63295 /gnu/build/activation.scm
parentc851400bee4f42d9ef582820a1badaa96ba72934 (diff)
activation: Set the permissions of /etc/sudoers to 440.
* gnu/build/activation.scm (activate-etc): Move 'rm-f' to a local 'define'. When TARGET is "sudoers", make it 440.
Diffstat (limited to 'gnu/build/activation.scm')
-rw-r--r--gnu/build/activation.scm62
1 files changed, 34 insertions, 28 deletions
diff --git a/gnu/build/activation.scm b/gnu/build/activation.scm
index ee82a078b9..04dd19f3e1 100644
--- a/gnu/build/activation.scm
+++ b/gnu/build/activation.scm
@@ -147,35 +147,41 @@ numeric gid or #f."
;; /etc is a mixture of static and dynamic settings. Here is where we
;; initialize it from the static part.
+ (define (rm-f file)
+ (false-if-exception (delete-file file)))
+
(format #t "populating /etc from ~a...~%" etc)
- (let ((rm-f (lambda (f)
- (false-if-exception (delete-file f)))))
- (rm-f "/etc/static")
- (symlink etc "/etc/static")
- (for-each (lambda (file)
- (let ((target (string-append "/etc/" file))
- (source (string-append "/etc/static/" file)))
- (rm-f target)
-
- ;; Things such as /etc/sudoers must be regular files, not
- ;; symlinks; furthermore, they could be modified behind our
- ;; back---e.g., with 'visudo'. Thus, make a copy instead of
- ;; symlinking them.
- (if (file-is-directory? source)
- (symlink source target)
- (copy-file source target))))
- (scandir etc
- (lambda (file)
- (not (member file '("." ".."))))
-
- ;; The default is 'string-locale<?', but we don't have
- ;; it when run from the initrd's statically-linked
- ;; Guile.
- string<?))
-
- ;; Prevent ETC from being GC'd.
- (rm-f "/var/guix/gcroots/etc-directory")
- (symlink etc "/var/guix/gcroots/etc-directory")))
+
+ (rm-f "/etc/static")
+ (symlink etc "/etc/static")
+ (for-each (lambda (file)
+ (let ((target (string-append "/etc/" file))
+ (source (string-append "/etc/static/" file)))
+ (rm-f target)
+
+ ;; Things such as /etc/sudoers must be regular files, not
+ ;; symlinks; furthermore, they could be modified behind our
+ ;; back---e.g., with 'visudo'. Thus, make a copy instead of
+ ;; symlinking them.
+ (if (file-is-directory? source)
+ (symlink source target)
+ (copy-file source target))
+
+ ;; XXX: Dirty hack to meet sudo's expectations.
+ (when (string=? (basename target) "sudoers")
+ (chmod target #o440))))
+ (scandir etc
+ (lambda (file)
+ (not (member file '("." ".."))))
+
+ ;; The default is 'string-locale<?', but we don't have
+ ;; it when run from the initrd's statically-linked
+ ;; Guile.
+ string<?))
+
+ ;; Prevent ETC from being GC'd.
+ (rm-f "/var/guix/gcroots/etc-directory")
+ (symlink etc "/var/guix/gcroots/etc-directory"))
(define %setuid-directory
;; Place where setuid programs are stored.