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sctp-rt-tests.scm
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sctp-rt-tests.scm
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;;;
;;; Copyright (C) 2003, 2004, 2005 M. Tuexen tuexen@fh-muenster.de
;;;
;;; All rights reserved.
;;;
;;; Redistribution and use in source and binary forms, with or
;;; without modification, are permitted provided that the
;;; following conditions are met:
;;; 1. Redistributions of source code must retain the above
;;; copyright notice, this list of conditions and the
;;; following disclaimer.
;;; 2. Redistributions in binary form must reproduce the
;;; above copyright notice, this list of conditions and
;;; the following disclaimer in the documentation and/or
;;; other materials provided with the distribution.
;;; 3. Neither the name of the project nor the names of
;;; its contributors may be used to endorse or promote
;;; products derived from this software without specific
;;; prior written permission.
;;;
;;; THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS
;;; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
;;; BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
;;; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
;;; DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS
;;; BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
;;; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
;;; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
;;; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
;;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
;;; IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
;;; USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
;;; OF SUCH DAMAGE.
;;; $Id: sctp-rt-tests.scm,v 1.8 2014/08/30 19:52:56 tuexen Exp $
;;; Version 1.1
;;;
;;; Retransmission Timer Test Cases (RT)
;;;
;;; History
;;; 06.02.2005 Change sctp-rt-i-11-[23] such that path verification is supported.
;;; 13.02.2005 Change sctp-rt-i-11-[23] such that correct addresses are used.
(define (apply-pairwise op list)
(map op (reverse (cdr (reverse list))) (cdr list)))
(define (time-quotient-list times)
(apply-pairwise /
(map (lambda (x) (* 1000 x (/ internal-time-units-per-second)))
(apply-pairwise - times))))
(define (sctp-rt-i-11-1 peer-server? peer-addr local-port peer-port)
(sctp-cleanup)
;; set up a asscociation first.
(let* ((tcb (if peer-server?
(associate-from-port peer-addr local-port peer-port tester-os tester-mis)
(accept-association tester-os tester-mis)))
(header (get-header tcb))
(local-tsn (get-local-tsn tcb))
(peer-addr (get-peer-addr tcb))
(peer-tsn (get-remote-tsn tcb)))
(sctp-send header
(vector (make-data-chunk local-tsn (if (= upper-layer-protocol ulp-http) 0 1) 0 test-ppid test-message))
peer-addr)
(let ((times (list)))
(dotimes (i (1+ sut-maximum-assoc-retransmits))
(sctp-receive-chunk data-chunk? header)
(set! times (cons (get-internal-real-time) times)))
(sctp-send header
(vector (make-abort-chunk #f))
peer-addr)
(let ((quotients (time-quotient-list times)))
(if (and (>= (apply min quotients) 0.95)
(<= (apply max quotients) 3))
stt-test-result-passed
stt-test-result-failed)))))
;;; (sctp-rt-i-11-1 sut-is-server sut-addr tester-port sut-port)
;;; The test is passed if you do see retransmissions of the DATA chunk with increased timer.
;;; Should I allow the peer to perform an RTT measurement?
(define (sctp-rt-i-11-2 peer-server? peer-addr local-port peer-port)
(sctp-cleanup)
(if peer-server?
(let ((local-tag (choose-local-tag))
(local-tsn (random (expt 2 32))))
(sctp-send (make-common-header local-port peer-port 0)
(vector (make-init-chunk local-tag
1500
tester-os
tester-mis
local-tsn
(if (equal? tester-addr-1 tester-addr-2)
(vector)
(vector (make-ipv4-address-parameter tester-addr-1)
(make-ipv4-address-parameter tester-addr-2)))))
peer-addr)
(let* ((answer (sctp-receive-chunk init-ack-chunk?))
(init-ack (vector-ref (cadr answer) 0))
(parameters (get-parameters init-ack))
(state-cookie (vector-find parameters cookie-parameter?))
(peer-tag (get-initiate-tag init-ack))
(peer-tsn (get-initial-tsn init-ack))
(header (make-common-header local-port peer-port peer-tag)))
(sctp-send header
(vector (make-cookie-echo-chunk (get-cookie-parameter-cookie state-cookie)))
peer-addr)
(sctp-receive-chunk cookie-ack-chunk?)
(let* ((answer (sctp-receive-chunk heartbeat-chunk?))
(heartbeat (vector-ref (cadr answer) 0))
(peer-addr (cadddr answer))
(local-addr (caddr answer)))
(sctp-send header
(vector (make-heartbeat-ack-chunk (get-heartbeat-parameter heartbeat)))
peer-addr
local-addr))
(let* ((answer (sctp-receive-chunk heartbeat-chunk?))
(heartbeat (vector-ref (cadr answer) 0))
(peer-addr (cadddr answer))
(local-addr (caddr answer)))
(sctp-send header
(vector (make-heartbeat-ack-chunk (get-heartbeat-parameter heartbeat)))
peer-addr
local-addr))
(sctp-send header
(vector (make-data-chunk local-tsn 1 0 test-ppid test-message))
peer-addr)
(sctp-receive-chunk data-chunk?)
(sctp-receive-chunk data-chunk?)
(sctp-receive-chunk data-chunk?)
(sctp-receive-chunk data-chunk?)
(sctp-receive-chunk data-chunk?)
(sctp-receive-chunk data-chunk?)
(sctp-send header
(vector (make-abort-chunk #f))
peer-addr)
stt-test-result-passed))
stt-test-result-not-applicable))
;;; The peer needs to be an echo server.
;;; (sctp-rt-i-11-2 sut-is-server sut-addr tester-port sut-port tester-addr-1 tester-addr-2)
;;; See ETSI TS.
(define sctp-rt-i-11-3 sctp-rt-i-11-2)
;;; The peer needs to be an echo server.
;;; (sctp-rt-i-11-3 sut-addr tester-port sut-port tester-addr-1 tester-addr-2)
;;; See ETSI TS.