AUTOSAR CountdownAdvent Calendar 2023

SOME/IP Service Discovery Protocol Specification, AUTOSAR 802, R23-11, FO

Posted at 2023-12-03

AUTOSARが、2023年版、R23-11を公開しました。
https://www.autosar.org/fileadmin/standards/23-11/FO/AUTOSAR_FO_PRS_SOMEIPServiceDiscoveryProtocol.pdf

R22-11
https://www.autosar.org/fileadmin/standards/R22-11/FO/AUTOSAR_PRS_SOMEIPServiceDiscoveryProtocol.pdf

R21-11
https://www.autosar.org/fileadmin/standards/R21-11/FO/AUTOSAR_PRS_SOMEIPServiceDiscoveryProtocol.pdf

R20-11
https://www.autosar.org/fileadmin/standards/R20-11/FO/AUTOSAR_PRS_SOMEIPServiceDiscoveryProtocol.pdf

R19-11
https://www.autosar.org/fileadmin/standards/R19-11/FO/AUTOSAR_PRS_SOMEIPServiceDiscoveryProtocol.pdf

AUTOSARは自動車用OSの業界団体規格です。　
業務で利用する場合には、会員になることを条件にしています。

2002年から20年経ち、当初の狙いの段階に近づいてきました。

MATLABでモデルさえ記述すれば、あとは自動生成だけでソフトが完成するところまで、あと一歩です。
Ethernet, UNIXが生まれて20年で大衆化したのと同じように考えると分かりやすいでしょう。　

AUTOSARの上で動く、クラウド対応のミドルウェアが出て、開発も運用もクラウドになれば、一気にAUTOSARは大衆化するでしょう。

AUTOSAR Abstract Platformへの道 R22-11

<この項は書きかけです。順次追記します。>
This article is not completed. I will add some words in order.

一覧

文書は検索してダウンロードできます。
4.4.0, R19-11, R20-11, R21-11, R22-11, R23-11の6年分です。

R23-11 一覧はこちら。

Classic Platform Release Overview, AUTOSAR No.0 ,R23-11, CP
https://qiita.com/kaizen_nagoya/items/9d22c8722cbc0f42b137

Foundation Release Overview, AUTOSAR 781, R23-11, FO
https://qiita.com/kaizen_nagoya/items/f249bdb8c313d8bff883

Adaptive Platform Release Overview, AUTOSAR 782, R23-11, AP
https://qiita.com/kaizen_nagoya/items/13a104606a34fe24fcf7

Abstract Platformとの関係

RS統合。

<この項は書きかけです。順次追記します。>

文書変更(Document Change)

• Adaptions in IPv4/6 SD endpoint options handling for AP compatibility
• Editorial changes

用語(terms)

Term	Description
Method	a method, procedure, function, or subroutine that is called/invoked.
Parameters	input, output, or input/output arguments of a method or an event
Remote Procedure Call (RPC)	a method call from one ECU to another that is transmitted using messages
Request	a message of the client to the server invoking a method
Response	a message of the server to the client transporting results of a method invocation
Request/Response communication	a RPC that consists of request and response
Fire&Forget communication	a RPC call that consists only of a request message
Event	A uni-directional data transmission that is only invoked on changes or cyclically and is sent from the producer of data to the consumers. One event could even be both sent cyclically and spontaneously on change. This is completely in the responsibility of the sending application because the receiver has no means at all to distinguish between those two.
Field	a field does represent a status and thus has a valid value at all times on which getter, setter and notfier act upon.
Notification Event	an event message the notifier of a field sends. The message of such a notifier cannot be distinguished from the event message; therefore, when refering to the message of an event, this shall also be true for the messages of notifiers of fields.
Getter	a Request/Response call that allows read access to a field.
Setter	a Request/Response call that allows write access to a field.
Notifier	sends out event message with a new value on change of the value of the field.
Service	a logical combination of zero or more methods, zero or more events, and zero or more fields (empty service is allowed, e.g. for announcing non-SOME/IP services in SOME/IP-SD)
Eventgroup	a logical grouping of events and notification events of fields inside a service in order to allow subscription
Service Interface	the formal specification of the service including its methods, events, and fields
Service Instance	software implementation of the service interface, which can exist more than once in the vehicle and more than once on an ECU
Server	The ECU offering a service instance shall be called server in the context of this service instance.
Client	The ECU using the service instance of a server shall be called client in the context of this service instance.
Union or Variant	a data structure that dynamically assumes different data types.
Offering a service instance	that one ECU implements an instance of a service and tells other ECUs using SOME/IP-SD that they may use it.
Finding a service instance	to send a SOME/IP-SD message in order to find a needed service instance.
Requiring a service instance	to send a SOME/IP-SD message to the ECU implementing the required service instance with the meaning that this service instance is needed by the other ECU. This may be also sent if the service instance is not running; thus, was not offered yet.
Releasing a service instance	to sent a SOME/IP-SD message to the ECU hosting this service instances with the meaning that the service instance is no longer needed.
Server-Service-Instance-Entry	The configuration and required data of a service instance the local ECU offers, is called Server-Service-Instance-Entry at the ECU offering this service (Server).
Client-Service-Instance-Entry	The configuration and required data of a service instance another ECU offers, is called Client-Service-Instance-Entry at the ECU using this service (Client)
Publishing an eventgroup	to offer an eventgroup of a service instance to other ECUs using a SOME/IP-SD message
Subscribing an eventgroup	to require an eventgroup of a service instance using a SOME/IPSD message.
unicast event	Events which are transmitted to a unicast endpoint by the ECU which hosts a server service. The unicast endpoint is provided by a particular client service which has subscribed to this server service within the Endpoint Option referenced by a SubscribeEventgroup entry (see client service unicast endpoint).
multicast event	Events which are transmitted to a multicast endpoint by the ECU which hosts a server service. A multicast endpoint could be provided by the server service (see server service multicast endpoint) and client service (see client service multicast endpoint).
server service multicast endpoint	Multicast endpoint (including IP multicast address, port, and protocol) provided by the server service to announce where the server service transmits multicast-events to with respect to the configured MULTICAST_THRESHOLD.
client service unicast endpoint	Unicast endpoint (including IP multicast address, port, and protocol) provided by the client service to announce where the client service expects to receive events from the corresponding server service. Please note, if the MULTICAST_THRESHOLD has been exceeded on server service side, then the server service automatically switches from the client service unicast endpoint to the server service multicast endpoint to provide events.
client service multicast endpoint	Multicast endpoint (including IP multicast address, port, and protocol) provided by the client service to announce where the client service expects to receive events from the corresponding server service. This could be used alternatively to a client unicast endpoint. Please note, if the MULTICAST_THRESHOLD has been exceeded on server service side, then the server service automatically switches from the client service multicast endpoint to the server service multicast endpoint.
Security Association	Mechanism to provide secure encrypted communication between commuication partners. This for example applies to IPSec, MACsec, (d)TLS and possible other security protocols.
Secured Port	Network Port, on which a Security association is applied to be secured from unauthorized communication.

英日

日本語は仮訳

no.	count	word	日本語
1	1527	ip	internet protocol
2	1151	the	その
3	1089	sd_	SD_
4	812	service	奉仕
5	681	prs_some	prs_some
6	521	to	に
7	464	of	の
8	438	shall	しなければならない
9	407	rs_some	rs_some
10	395	event	行事
11	340	a	一つの
12	328	and	と
13	316	be	です
14	310	group	班
15	295	some	いくつかの
16	282	protocol	規約
17	280	c	c
18	266	discovery	発見
19	237	is	は
20	234	subscribe	申し込む
21	210	client	顧客
22	205	id	id
23	202	multicast	マルチキャスト
24	202	sd	SD
25	196	option	選択肢
26	193	entry	記入
27	181	server	奉仕
28	179	endpoint	終点
29	177	for	にとって
30	173	with	と
31	158	in	中に
32	153	set	設定する
33	143	x	x
34	135	not	いいえ
35	134	instance	実例
36	120	d	d
37	119	if	もし
38	116	autosar	autosar
39	113	ipv	ipv
40	112	this	これ
41	109	from	から
42	108	offer	定時
43	108	specification	仕様
44	104	as	なので
45	104	document	資料
46	104	phase	段階
47	104	unicast	ユニキャスト
48	103	by	に
49	102	r	r
50	99	events	行事
51	96	fo	foundation(短縮名)
52	95	autosar_prs_some	autosar_prs_some
53	92	are	それは
54	91	entries	記入
55	91	or	または
56	85	subscribed	購読した
57	80	counter	計数器
58	80	options	選択肢
59	80	subscription	購読
60	80	that	それ
61	79	port	港
62	77	bit	binary digit(短縮名)
63	72	address	住所
64	72	initial	最初の
65	68	on	の上
66	68	uint	unsigned integer(短縮名)
67	67	ack	acknowledge(短縮名)
68	67	used	使った
69	66	messages	伝言
70	64	type	型
71	63	reserved	予約済み
72	62	message	伝言
73	61	an	一つの
74	57	figure	形
75	57	receive	受け取る
76	57	version	版
77	56	length	長さ
78	52	number	番号
79	52	transport	輸送
80	51	e	e
81	51	send	送信
82	50	tcp	tcp
83	48	find	探す
84	47	configuration	構成
85	47	udp	udp
86	46	field	分野
87	46	up	上
88	43	following	続く
89	43	it	それ
90	43	same	同じ
91	42	repetition	繰り返し
92	42	wait	待つ
93	41	only	それだけ
94	40	use	使う
95	39	state	状態
96	38	layer	層
97	37	which	どの
98	36	run	走る
99	36	ttl	time to live(短縮名)
100	35	different	違う
101	35	note	覚書
102	35	reboot	再起動
103	35	services	奉仕
104	35	stop	止める

参考(reference)

[1] Glossary, AUTOSAR_TR_Glossary
https://www.autosar.org/fileadmin/standards/23-11/FO/AUTOSAR_FO_TR_Glossary.pdf

文書履歴(document history)

ver. 0.01 初稿　　20231203

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