services: Add nslcd-service-type.

* gnu/services/authentication.scm (nslcd-service-type, nslcd-configuration,
%nslcd-accounts): New variables.
(uglify-field-name, value->string, serialize-field, serialize-list,
ssl-option?, tls-reqcert-option?, deref-option?,
comma-separated-list-of-strings?, serialize-ignore-users-option, log-option?,
serialize-log-option, valid-map?, scope-option?, serialize-scope-option,
map-entry?, list-of-map-entries?, filter-entry?, list-of-filter-entries?,
serialize-filter-entry, serialize-list-of-filter-entries, serialize-map-entry,
serialize-list-of-map-entries, nslcd-config-file, nslcd-etc-service,
nslcd-shepherd-service, pam-ldap-pam-services, pam-ldap-pam-service,
generate-nslcd-documentation): New procedures.
* gnu/tests/ldap.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (LDAP Services): Document it.

1 files changed, 160 insertions, 0 deletions

diff --git a/gnu/tests/ldap.scm b/gnu/tests/ldap.scm
new file mode 100644
index 0000000000..2d4f15fb3c
--- /dev/null
+++ b/gnu/tests/ldap.scm
@@ -0,0 +1,160 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Ricardo Wurmus <rekado@elephly.net>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu tests ldap)
+  #:use-module (gnu tests)
+  #:use-module (gnu system)
+  #:use-module (gnu system nss)
+  #:use-module (gnu system vm)
+  #:use-module (gnu services)
+  #:use-module (gnu services authentication)
+  #:use-module (gnu services networking)
+  #:use-module (gnu packages base)
+  #:use-module (gnu packages openldap)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:export (%test-ldap))
+
+(define %ldap-os
+  (let ((simple
+         (simple-operating-system
+          (service dhcp-client-service-type)
+          (service nslcd-service-type))))
+    (operating-system
+      (inherit simple)
+      (name-service-switch
+       (let ((services (list (name-service (name "db"))
+                             (name-service (name "files"))
+                             (name-service (name "ldap")))))
+         (name-service-switch
+          (inherit %mdns-host-lookup-nss)
+          (password services)
+          (shadow   services)
+          (group    services)
+          (netgroup services)
+          (gshadow  services)))))))
+
+(define (run-ldap-test)
+  "Run tests in %LDAP-OS."
+  (define os
+    (marionette-operating-system
+     %ldap-os
+     #:imported-modules '((gnu services herd)
+                          (guix combinators))))
+
+  (define vm
+    (virtual-machine os))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (srfi srfi-11) (srfi srfi-64)
+                       (gnu build marionette))
+
+          (define marionette
+            (make-marionette (list #$vm)))
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin "ldap")
+
+          ;; Set up LDAP directory server
+          (test-assert "LDAP server instance running"
+            (marionette-eval
+             '(begin
+                (with-output-to-file "instance.inf"
+                  (lambda ()
+                    (display "[general]
+config_version = 2
+
+\n[slapd]
+root_password = SECRET
+user = root
+group = root
+
+\n[backend-userroot]
+sample_entries = yes
+suffix = dc=example,dc=com")))
+                (and
+                 ;; Create instance
+                 (zero? (system* #$(file-append 389-ds-base "/sbin/dscreate")
+                                     "-v" "from-file" "instance.inf"))
+                 ;; Start instance
+                 (zero? (system* #$(file-append 389-ds-base "/sbin/dsctl")
+                                 "localhost" "start"))
+                 ;; Create user account
+                 (zero? (system* #$(file-append 389-ds-base "/sbin/dsidm")
+                                 "-b" "dc=example,dc=com"
+                                 "localhost" "user" "create"
+                                 "--uid" "eva" "--cn" "Eva Lu Ator"
+                                 "--displayName" "Eva Lu Ator"
+                                 "--uidNumber" "1234" "--gidNumber" "2345"
+                                 "--homeDirectory" "/home/eva"))))
+             marionette))
+
+          (test-assert "Manager can bind to LDAP server instance"
+            (marionette-eval
+             '(zero? (system* #$(file-append openldap "/bin/ldapwhoami")
+                              "-H" "ldap://localhost" "-D"
+                              "cn=Directory Manager" "-w" "SECRET"))
+             marionette))
+
+          ;; Wait for nslcd to be up and running.
+          (test-assert "nslcd service running"
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (match (start-service 'nslcd)
+                  (#f #f)
+                  (('service response-parts ...)
+                   (match (assq-ref response-parts 'running)
+                     ((pid) (number? pid))))))
+             marionette))
+
+          (test-assert "nslcd produces a log file"
+            (marionette-eval
+             '(file-exists? "/var/log/nslcd")
+             marionette))
+
+          (test-assert "Can query LDAP user accounts"
+            (marionette-eval
+             '(begin
+                ;; TODO: This shouldn't be necessary, but unfortunately it
+                ;; really is needed to discover LDAP accounts with "id".
+                (setenv "LD_LIBRARY_PATH"
+                        #$(file-append nss-pam-ldapd "/lib"))
+                (zero? (system* #$(file-append coreutils "/bin/id") "eva")))
+             marionette))
+
+          (test-assert "Can become LDAP user"
+            (marionette-eval
+             '(zero? (system* "/run/setuid-programs/su" "eva" "-c"
+                              #$(file-append coreutils "/bin/true")))
+             marionette))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation "ldap-test" test))
+
+(define %test-ldap
+  (system-test
+   (name "ldap")
+   (description "Run an LDAP directory server and authenticate against it.")
+   (value (run-ldap-test))))