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;;; GnuTLS --- Guile bindings for GnuTLS.
;;; Copyright (C) 2019 Free Software Foundation, Inc.
;;;
;;; GnuTLS is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU Lesser General Public
;;; License as published by the Free Software Foundation; either
;;; version 2.1 of the License, or (at your option) any later version.
;;;
;;; GnuTLS 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
;;; Lesser General Public License for more details.
;;;
;;; You should have received a copy of the GNU Lesser General Public
;;; License along with GnuTLS; if not, write to the Free Software
;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;;; Written by Ludovic Courtès <ludo@chbouib.org>.
;;;
;;; Test TLS 1.3 re-authentication requests.
;;;
(use-modules (gnutls)
(gnutls build tests)
(srfi srfi-4))
;; TLS session settings.
(define priorities
"NORMAL:+VERS-TLS1.3")
;; Message sent by the client.
(define %message
(cons "hello, world!" (iota 4444)))
(define (import-something import-proc file fmt)
(let* ((path (search-path %load-path file))
(size (stat:size (stat path)))
(raw (make-u8vector size)))
(uniform-vector-read! raw (open-input-file path))
(import-proc raw fmt)))
(define (import-key import-proc file)
(import-something import-proc file x509-certificate-format/pem))
(define (import-dh-params file)
(import-something pkcs3-import-dh-parameters file
x509-certificate-format/pem))
;; Debugging.
;; (set-log-level! 5)
;; (set-log-procedure! (lambda (level str)
;; (format #t "[~a|~a] ~a" (getpid) level str)))
(run-test
(lambda ()
(let ((socket-pair (socketpair PF_UNIX SOCK_STREAM 0))
(pub (import-key import-x509-certificate
"x509-certificate.pem"))
(sec (import-key import-x509-private-key
"x509-key.pem")))
(with-child-process pid
;; server-side
(let ((server (make-session connection-end/server
connection-flag/post-handshake-auth))
(dh (import-dh-params "dh-parameters.pem")))
(set-session-priorities! server "NORMAL:+VERS-TLS1.3")
(set-session-transport-fd! server (port->fdes (cdr socket-pair)))
(let ((cred (make-certificate-credentials))
(trust-file (search-path %load-path
"x509-certificate.pem"))
(trust-fmt x509-certificate-format/pem))
(set-certificate-credentials-dh-parameters! cred dh)
(set-certificate-credentials-x509-keys! cred (list pub) sec)
(set-certificate-credentials-x509-trust-file! cred
trust-file
trust-fmt)
(set-session-credentials! server cred))
(handshake server)
(let ((msg (read (session-record-port server)))
(auth-type (session-authentication-type server)))
(set-server-session-certificate-request! server
certificate-request/request)
;; Request a post-handshake reauthentication.
(reauthenticate server)
(write msg (session-record-port server))
(bye server close-request/rdwr)
(and (zero? (cdr (waitpid pid)))
(eq? auth-type credentials/certificate)
(equal? msg %message))))
;; client-side (child process)
(let ((client (make-session connection-end/client
connection-flag/post-handshake-auth
connection-flag/auto-reauth))
(cred (make-certificate-credentials)))
(set-session-priorities! client
"NORMAL:-VERS-ALL:+VERS-TLS1.3:+VERS-TLS1.2:+VERS-TLS1.0")
(set-certificate-credentials-x509-keys! cred (list pub) sec)
(set-session-credentials! client cred)
(set-session-transport-fd! client (port->fdes (car socket-pair)))
(handshake client)
(write %message (session-record-port client))
;; In the middle of the 'read' call, we receive a post-handshake
;; reauthentication request that should be automatically handled,
;; thanks to CONNECTION-FLAG/AUTO-REAUTH.
(let ((msg (read (session-record-port client))))
(unless (equal? msg %message)
(error "wrong message" msg)))
(bye client close-request/rdwr)
(primitive-exit))))))
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