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system: Handle 'setuid-programs' deprecation handling as a field sanitizer.

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Previously, evaluating an OS configuration with a childhurd (for
instance) would produce tens of lines like:

  guix system: warning: representing setuid programs with '#<file-append #<package shadow@4.8.1 gnu/packages/admin.scm:798 7ff97f6f7640> "/bin/passwd">' is deprecated; use 'setuid-program' instead

Now, it prints this one line:

  gnu/system/hurd.scm:105:2: warning: representing setuid programs with file-like objects is deprecated; use 'setuid-program' instead

This change also means that extensions of 'setuid-program-service-type'
now have to provide a list of <setuid-program>, so it's stricter in this
sense.

* gnu/services.scm (setuid-program-file-like-deprecated): Remove.
(setuid-program-service-type)[extend]: Remove
'setuid-program-file-like-deprecated' call.  Assume CONFIG and
EXTENSIONS are already lists of <setuid-program> records.
* gnu/system.scm (<operating-system>)[setuid-programs]: Add 'sanitize'
property.  Change accessor name from '%operating-system-setuid-programs'
to 'operating-system-setuid-programs'.
(operating-system-default-essential-services)
(hurd-default-essential-services): Adjust accordingly.
(ensure-setuid-program-list): New macro.
(%ensure-setuid-program-list): New procedure, based on
'setuid-program-file-like-deprecated'.
This commit is contained in:
Ludovic Courtès 2021-08-12 11:58:47 +02:00
parent 5291fd7a42
commit e0bd47b4fd
No known key found for this signature in database
GPG Key ID: 090B11993D9AEBB5
2 changed files with 28 additions and 21 deletions
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15
gnu/services.scm
View File

@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2020, 2021 Ricardo Wurmus <rekado@elephly.net>
@ -828,16 +828,6 @@ FILES must be a list of name/file-like object pairs."
(activate-setuid-programs (list #$@programs))))))
(define (setuid-program-file-like-deprecated file-like)
(match file-like
((? file-like? program)
(warning
(G_ "representing setuid programs with '~a' is \
deprecated; use 'setuid-program' instead~%") program)
(setuid-program (program program)))
((? setuid-program? program)
program)))
(define setuid-program-service-type
(service-type (name 'setuid-program)
(extensions
@ -845,8 +835,7 @@ deprecated; use 'setuid-program' instead~%") program)
setuid-program->activation-gexp)))
(compose concatenate)
(extend (lambda (config extensions)
(map setuid-program-file-like-deprecated
(append config extensions))))
(append config extensions)))
(description
"Populate @file{/run/setuid-programs} with the specified
executables, making them setuid-root.")))

34
gnu/system.scm
View File

@ -268,8 +268,9 @@
(pam-services operating-system-pam-services ; list of PAM services
(default (base-pam-services)))
(setuid-programs %operating-system-setuid-programs
(default %setuid-programs)) ; list of string-valued gexps
(setuid-programs operating-system-setuid-programs
(default %setuid-programs) ; list of <setuid-program>
(sanitize ensure-setuid-program-list))
(sudoers-file operating-system-sudoers-file ; file-like
(default %sudoers-specification))
@ -672,7 +673,7 @@ bookkeeping."
(operating-system-environment-variables os))
host-name procs root-fs
(service setuid-program-service-type
(%operating-system-setuid-programs os))
(operating-system-setuid-programs os))
(service profile-service-type
(operating-system-packages os))
other-fs
@ -702,7 +703,7 @@ bookkeeping."
(pam-root-service (operating-system-pam-services os))
(operating-system-etc-service os)
(service setuid-program-service-type
(%operating-system-setuid-programs os))
(operating-system-setuid-programs os))
(service profile-service-type (operating-system-packages os)))))
(define* (operating-system-services os)
@ -1066,10 +1067,27 @@ use 'plain-file' instead~%")
;; TODO: Remove when glibc@2.23 is long gone.
("GUIX_LOCPATH" . "/run/current-system/locale")))
(define (operating-system-setuid-programs os)
"Return the setuid programs for OS, as a list of setuid-program record."
(map file-like->setuid-program
(%operating-system-setuid-programs os)))
(define-syntax-rule (ensure-setuid-program-list lst)
"Ensure LST is a list of <setuid-program> records and warn otherwise."
(%ensure-setuid-program-list lst (current-source-location)))
(define (%ensure-setuid-program-list lst location)
(define warned? #f)
(define (warn-once)
(unless warned?
(warning (source-properties->location location)
(G_ "representing setuid programs with file-like objects is \
deprecated; use 'setuid-program' instead~%"))
(set! warned? #t)))
(map (match-lambda
((? file-like? program)
(warn-once)
(setuid-program (program program)))
((? setuid-program? program)
program))
lst))
(define %setuid-programs
;; Default set of setuid-root programs.