Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage-data-channel-16
Paul Kyzivat <pkyzivat@alum.mit.edu> Thu, 14 May 2020 15:57 UTC
Return-Path: <pkyzivat@alum.mit.edu>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B20B63A0B49 for <mmusic@ietfa.amsl.com>; Thu, 14 May 2020 08:57:34 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.991
X-Spam-Level:
X-Spam-Status: No, score=-1.991 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_MSPIKE_H2=-0.001, T_SPF_PERMERROR=0.01] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=alum.mit.edu
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U2Wk8pGmmJy0 for <mmusic@ietfa.amsl.com>; Thu, 14 May 2020 08:57:33 -0700 (PDT)
Received: from NAM12-MW2-obe.outbound.protection.outlook.com (mail-mw2nam12on2052.outbound.protection.outlook.com [40.107.244.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3ECE93A0B4A for <mmusic@ietf.org>; Thu, 14 May 2020 08:57:32 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=BMvKsV5TYQ+6Qm3IlWZFwDKAX0CLmftpzK8bO9yhpt43duDlUmftVpidd4Thcr0pLwwbdJBNeA2CC9j9hfdo/GKYVfJNoX5I7qn/b0NzGBDJQ10s6kB+BVauEQexYBwml0fY614erF9HAAqM1Dpv9K0f4mS8fTkkUMTrsZQYs3xaLP2Dctb2Qx++umuVj1bP3lscCTGaUv1bsxqrGGPWC5jVspIbofVW7DaAlUw5tlx+vZL8cRBH0Iq5ILM2qs4VxwkGkzjCs1WsLbg6V3GPGfhCS/+1SBB5OapVbaREaRzuUx4EFq0FfQYXfEF7LE5RxQDYsT0YDRGHHVxl+B2r9g==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=trNYmqqaiI+ypUYYQGIIBL7rgEwfW2YxPglu+Ass1pI=; b=XOOXGOdgBbY+SVZiwIdC3o+mvTVepmnTD88zdOV6b1grXefsr7zaW/Ihw3x06dBaAMAVTCToW2lmd6tViVH4L11mCMZNeGI/bMeO4uBJ+CL6eGaeGPnZus+nC8lg5rGwB9wQnRX7STbxR6yQOQKbbGocFnOgxGHilOI5+MMFr7J3wbmb9/75n2Kwrm1kxzXGIGckclTs2wbyuIeFXKMtYhVSzMCTi4AuNdoceX7lhRtvdBgTQ4JZBoLRThIUbeEQ8DJQv4prPLO+RLZK2Qr18uWUIs0ueqUUiHrqvNSgKO2moiU5fYSZRhUIt/R1dkXc0U9B673GrRdK6EYcfqEcQg==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=permerror (sender ip is 18.7.68.33) smtp.rcpttodomain=ietf.org smtp.mailfrom=alum.mit.edu; dmarc=none action=none header.from=alum.mit.edu; dkim=none (message not signed); arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alum.mit.edu; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=trNYmqqaiI+ypUYYQGIIBL7rgEwfW2YxPglu+Ass1pI=; b=QU7X5qwcpko97M6AIJAg5V9+0qg7eoQHCko68z6QkQpYkX0/z07X0PaCS0i57Y/Hh9EBqx2NekMXLW/U16dPq+9bfNSQICYFcbvb0gP7WL4j3UbtY0059gwDvzIrTBPuVu3F13o2N5rHPWvoSYnhmaGu3NkGVB8a+cLpEg8ybSI=
Received: from MN2PR20CA0061.namprd20.prod.outlook.com (2603:10b6:208:235::30) by MN2PR12MB3741.namprd12.prod.outlook.com (2603:10b6:208:162::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.20; Thu, 14 May 2020 15:57:32 +0000
Received: from BL2NAM02FT005.eop-nam02.prod.protection.outlook.com (2603:10b6:208:235:cafe::b9) by MN2PR20CA0061.outlook.office365.com (2603:10b6:208:235::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.26 via Frontend Transport; Thu, 14 May 2020 15:57:32 +0000
X-MS-Exchange-Authentication-Results: spf=permerror (sender IP is 18.7.68.33) smtp.mailfrom=alum.mit.edu; ietf.org; dkim=none (message not signed) header.d=none;ietf.org; dmarc=none action=none header.from=alum.mit.edu;
Received-SPF: PermError (protection.outlook.com: domain of alum.mit.edu used an invalid SPF mechanism)
Received: from outgoing-alum.mit.edu (18.7.68.33) by BL2NAM02FT005.mail.protection.outlook.com (10.152.76.252) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.19 via Frontend Transport; Thu, 14 May 2020 15:57:31 +0000
Received: from Kokiri.localdomain (c-24-62-227-142.hsd1.ma.comcast.net [24.62.227.142]) (authenticated bits=0) (User authenticated as pkyzivat@ALUM.MIT.EDU) by outgoing-alum.mit.edu (8.14.7/8.12.4) with ESMTP id 04EFvT98020481 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT) for <mmusic@ietf.org>; Thu, 14 May 2020 11:57:30 -0400
To: mmusic@ietf.org
References: <HE1PR07MB4426ADA1E4B1D696A48BA9A98DA40@HE1PR07MB4426.eurprd07.prod.outlook.com> <66bc33b6-8a66-1da3-93c0-e7ddc31cc605@alum.mit.edu> <2F549E6E-1250-426F-8602-99CB44C84365@ericsson.com> <ef5b4ef8-4063-e38e-d300-185a933cc3dc@ch3m4.com> <AM7PR07MB7012D222A4AF5FD13FCC8C3793A00@AM7PR07MB7012.eurprd07.prod.outlook.com> <a3210a85-e69d-2bfc-a802-7649c70a6534@ch3m4.com> <60ab60db-f81a-904a-0481-935fa3156a9e@ch3m4.com> <80F9E944-16A1-4D14-8691-181A6089B4D1@ericsson.com> <822e1c54-77fd-bf15-1139-94a8e08442aa@alum.mit.edu> <F8C86ECB-9489-40AD-8BA0-CF89EC370CF2@ericsson.com> <308616ac-cd24-341e-be31-4b348d803889@alum.mit.edu> <E3EB3037-335E-4121-AA72-230B7353CEDF@ericsson.com> <668DE0D3-8E9E-4137-87DC-620858F05DA5@ericsson.com> <43071726-f305-a620-6529-db7d42752959@alum.mit.edu> <6771CBB5-F636-4411-B4BB-3A88315F2419@ericsson.com>
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
Message-ID: <936f3801-80ab-c2e3-8729-aaaaff3a4954@alum.mit.edu>
Date: Thu, 14 May 2020 11:57:28 -0400
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:68.0) Gecko/20100101 Thunderbird/68.8.0
MIME-Version: 1.0
In-Reply-To: <6771CBB5-F636-4411-B4BB-3A88315F2419@ericsson.com>
Content-Type: text/plain; charset="utf-8"; format="flowed"
Content-Language: en-US
Content-Transfer-Encoding: 7bit
X-EOPAttributedMessage: 0
X-Forefront-Antispam-Report: CIP:18.7.68.33; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:outgoing-alum.mit.edu; PTR:outgoing-alum.mit.edu; CAT:NONE; SFTY:; SFS:(396003)(39860400002)(136003)(346002)(376002)(46966005)(26005)(2616005)(336012)(8676002)(786003)(5660300002)(316002)(478600001)(36906005)(356005)(70586007)(956004)(6916009)(70206006)(2906002)(31686004)(186003)(82310400002)(75432002)(7596003)(66574014)(82740400003)(47076004)(8936002)(53546011)(31696002)(86362001)(383974003)(43740500002); DIR:OUT; SFP:1101;
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-Correlation-Id: 4d89f934-b7ad-4318-58db-08d7f81f8274
X-MS-TrafficTypeDiagnostic: MN2PR12MB3741:
X-Microsoft-Antispam-PRVS: <MN2PR12MB3741E11A201EBF27DDB9F005F9BC0@MN2PR12MB3741.namprd12.prod.outlook.com>
X-MS-Oob-TLC-OOBClassifiers: OLM:7691;
X-Forefront-PRVS: 040359335D
X-MS-Exchange-SenderADCheck: 1
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: 0q1MZ1uqwIVbGSm/8ceyQpkhJ5ObLsgOl/yAwFLCrOk6zZ+IGZZf09sSuqtvDMB57ZuQLFlE4i5Y1kUtFtrUY7zulIDzw+5cukTni+NXCG1KCU6D/A6XgZXeh/HPmuiYK5RVOxAaytU5r1+Xg17S0ZdmSD88alttNGLcUoh0rtwaAuNc72fu6gXxa/INWSVppBfXOT68ePGZET5VNbL5dM25RCwwG8trmi627Rcsk0WmuaZkQIWzp+Ukd/GoARz1lTM8YxhQisLwOZfMBqMcsiZlQCBMz9FIewQmp36mSeojMZmwgXkVNV3QfY2m32iLkWYih0oadawJObwM2wtjzGvFaG9szhBq7ha0m9UVFNu7iNfnVBGIIMl4Im412DZk7EzjKiy2hhiK+Os3+CBwTs2XGHRY3wfCWma5pbIKGI6IuoPPRwSef7uPG1kNsh9OahmAzQx7gi1/8svqDyk7RX1Ief2VQWmw4HJq3ZqvbdZkAFXAn7jJzEyhSA2OctUtbsikK5i2aIZp10ibORhAoqT12+SYMhgiCtXM4NSH8MLaSTxTaSEFzfnZ9+oDpTlf9mx/JKJjfOuSh5eXb7kaOQ==
X-OriginatorOrg: alum.mit.edu
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 May 2020 15:57:31.1722 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 4d89f934-b7ad-4318-58db-08d7f81f8274
X-MS-Exchange-CrossTenant-Id: 3326b102-c043-408b-a990-b89e477d582f
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3326b102-c043-408b-a990-b89e477d582f; Ip=[18.7.68.33]; Helo=[outgoing-alum.mit.edu]
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB3741
Archived-At: <https://mailarchive.ietf.org/arch/msg/mmusic/-Oq40I2_hW7Btbdxvjm7JQaJ4-Y>
Subject: Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage-data-channel-16
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Multiparty Multimedia Session Control Working Group <mmusic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mmusic>, <mailto:mmusic-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/mmusic/>
List-Post: <mailto:mmusic@ietf.org>
List-Help: <mailto:mmusic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mmusic>, <mailto:mmusic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 14 May 2020 15:57:36 -0000
On 5/13/20 2:37 PM, Christer Holmberg wrote: > Hi, > > >> One more thing: if you by "destination" mean the IP address and port of the remote peer, you get that from the c/m- line. > > > > And where does *the* m line get the fqdn/ip from??? > > > > Assume you gave me your msrp address once, and I have it in my address > > book. Today I decide I want to chat with you. I need to set up a session > > with you, and your msrp url is what I have to work with. > > > > Because the URL has the "dc" parameter I can infer that I will need a > > data channel. I must set up the the DTLS session and then create a data > > channel to do that. How do I know what to put into the c/m- line? Are > > you saying that I need some *other* information about you before I can > > do that? Or can I derive the c/m- line data from it? > > I don't think an MSRP-URI is something you would put in your address book. If you use SIP to negotiate the MSRP session, then you would have a SIP-URI in your address book, and you would use that to establish a SIP session in order to negotiate the MSRP session. > > Even in RFC 4975, you use SIP and offer/answer to negotiate the MSRP session. You don't just start sending MSRP messages without exchanging the MSPR session parameters (including path) first. > > But, maybe I completely misunderstand your issue. I don't know. I'm trying to understand the intended usage and how it plays out in the example. If what I have in my address book for you is just your sip URI, then how do I figure out how to establish a chat session? How do I decide to use a data channel rather than MSRP over TLS? And do I just somehow derive the msrp URL from your sip URL? I guess if I am running in a browser and using WebRTC then I try a data channel because there is no alternative I can use. But that isn't this example. Must I have something else in my address book to tell me what you support? Or should I be trying both in my invite and seeing what you accept? (That also isn't this example.) I would hope that the draft doesn't require magical thinking for the example to work. Thanks, Paul
- [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage-dat… Bo Burman
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Bo Burman
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Gunnar Hellström
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Jose M Recio
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Jose M Recio
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Jose M Recio
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Gunnar Hellström
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Gunnar Hellström
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Gunnar Hellström
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Keith Drage
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Gunnar Hellström
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Gunnar Hellström
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Jose M Recio
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Jose M Recio
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Jose M Recio
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Paul Kyzivat
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Jose M Recio
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Jose M Recio
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Bo Burman
- Re: [MMUSIC] WGLC on draft-ietf-mmusic-msrp-usage… Christer Holmberg