From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Laight Date: Sun, 11 Oct 2020 15:28:43 +0000 Subject: RE: sctp discarding received data chunks Message-Id: <645944cb37fa4e41b90b18ff2b5d313d@AcuMS.aculab.com> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sctp@vger.kernel.org Li4uDQo+ID4gPiBJZiBJIGR1bXAgb3V0IC9wcm9jL25ldC9zY3RwL2Fzc29jcyBhbmQgbG9vayB3 YXkgb3ZlciB0byB0aGUgcmlnaHQNCj4gPiA+IChvbiB0aGUgbmV4dCBtb25pdG9yIGJ1dCAxKSB0 aGVyZSBhcmUgdHdvIGNvbHVtbnMgSU5TIGFuZCBPVVRTLg0KPiA+ID4gSSd2ZSBqdXN0IHJlYWxp c2VkIHRoYXQgdGhlc2UgYXJlIHRoZSBudW1iZXIgb2Ygc3RyZWFtcy4NCj4gPiA+IE5vdyBhbGwg bXkgY29ubmVjdGlvbnMgYXJlIGxvb3BiYWNrIC0gc28gSSBzZWUgYm90aCBzb2NrZXRzIGZvciBl YWNoLg0KPiA+ID4gU28gSSdkIGV4cGVjdCB0aGUgSU5TIHRvIG1hdGNoIHRoZSBPVVRTIG9mIHRo ZSBwZWVyLg0KPiA+ID4gVGhpcyBpc24ndCB0cnVlLg0KPiA+ID4gV2hlbiB0aGUgdmFsdWUgc2hv dWxkIGJlIG5lZ290aWF0ZWQgZG93biB0aGUgT1VUUyB2YWx1ZSBpcyB1bmNoYW5nZWQuDQo+ID4g PiBTbyB0aGUga2VybmVsIGlzIHNlbmRpbmcgcGFja2V0cyB3aXRoIGlsbGVnYWwgc3RyZWFtIG51 bWJlcnMuDQo+ID4gPiBUaGVzZSBhcmUgYWNrZWQgYW5kIHRoZW4gc2lsZW50bHkgZGlzY2FyZGVk Lg0KPiANCj4gPiBkaWQgaXQgZG8gYWRkc3RyZWFtIHJlY29uZmlnIG9yIHJlY2VpdmUgYW55IGR1 cGxpY2F0ZSBDT09LSUUtRUNITyBpbiB5b3VyIGNhc2U/DQo+IA0KPiBFeHRyZW1lbHkgdW5saWtl bHkuDQo+IA0KPiBMb29raW5nIGF0IHRoZSBsYXRlc3QgdmVyc2lvbiBvZiBteSBkcml2ZXIgY29k ZQ0KPiAod2hpY2ggSSB3YXNuJ3QgdXNpbmcpIEkgd3JvdGUgdGhlIGZvbGxvd2luZzoNCj4gDQo+ ICAqIFNpbmNlIHRoZSBjb2RlIHRoYXQgbmVnb3RpYXRlcyB0aGUgbnVtYmVyIG9mIHN0cmVhbXMg Z290IGJyb2tlbg0KPiAgKiBpbiB2ZXJzaW9uIDUuMSB3ZSBuZWVkIHRvIGV4dHJhY3QgdGhlIGNv cnJlY3QgdmFsdWUgZnJvbSB0aGUNCj4gICogaW50ZXJuYWwgc3RydWN0dXJlcyB0byBhdm9pZCBT Q1RQIHNlbmRpbmcgbWVzc2FnZXMgdGhlIHJlbW90ZQ0KPiAgKiBzeXN0ZW0gd2lsbCBkaXNjYXJk Lg0KPiANCj4gICAgIC8qIHN0cmVhbS5vdXRjbnQgaXMgdGhlIHZhbHVlIHdlIHNob3VsZCBiZSB1 c2luZy4NCj4gICAgICAqIEJ1dCBrZXJuZWxzIDUuMSB0byA1LjggZmFpbCB0byByZWR1Y2UgaXQg YmFzZWQgb24gdGhlIG51bWJlcg0KPiAgICAgICogcmVjZWl2ZWQgZnJvbSB0aGUgcmVtb3RlIHN5 c3RlbS4NCj4gICAgICAqIFNvIGJvdW5kIGhlcmUgc28gdGhhdCB0cmFuc21pdHRlZCBtZXNzYWdl cyBkb24ndCBnZXQgZGlzY2FyZGVkLiAqLw0KPiAgICAgb3V0Y250ID0gYXNvYy0+c3RyZWFtLm91 dGNudDsNCj4gICAgIG51bV9vc3RyZWFtcyA9IGFzb2MtPmMuc2luaXRfbnVtX29zdHJlYW1zOw0K PiANCj4gSSB0aGluayB0aGVyZSB3YXMgYSBwYXRjaCBkb25lIGZvciA1LjkuDQo+IEl0IG5lZWRz IGJhY2stcG9ydGluZy4NCg0KWWVzLCBJIHdyb3RlIHRoZSBwYXRjaC4NCkFwcGxpZWQgdG8gbmV0 LW5leHQuDQoNCmh0dHBzOi8vZ2l0Lmtlcm5lbC5vcmcvcHViL3NjbS9saW51eC9rZXJuZWwvZ2l0 L25leHQvbGludXgtbmV4dC5naXQvY29tbWl0L25ldC9zY3RwL3N0cmVhbS5jP2lkPWFiOTIxZjNj ZGJlYzAxYzY4NzA1YTdhZGU4YmVjNjI4ZDU0MWZjMmINCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVy ZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5 bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6815C433E7 for ; Sun, 11 Oct 2020 15:28:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A500122227 for ; Sun, 11 Oct 2020 15:28:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388168AbgJKP2v (ORCPT ); Sun, 11 Oct 2020 11:28:51 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:23922 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388167AbgJKP2u (ORCPT ); Sun, 11 Oct 2020 11:28:50 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-122-bOx-x7AyPAO2UKth8Bal2A-1; Sun, 11 Oct 2020 16:28:44 +0100 X-MC-Unique: bOx-x7AyPAO2UKth8Bal2A-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Sun, 11 Oct 2020 16:28:43 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Sun, 11 Oct 2020 16:28:43 +0100 From: David Laight To: David Laight , 'Xin Long' CC: Andreas Fink , Marcelo Ricardo Leitner , Neil Horman , "linux-sctp@vger.kernel.org" Subject: RE: sctp discarding received data chunks Thread-Topic: sctp discarding received data chunks Thread-Index: AQHWng1GnBiC92Jzi0usTZn0U2V7p6mPGcdwgAAhfiCAANPdAIAA4KSwgAGaErA= Date: Sun, 11 Oct 2020 15:28:43 +0000 Message-ID: <645944cb37fa4e41b90b18ff2b5d313d@AcuMS.aculab.com> References: <73434b87932e46a89dd1b5b5132b3196@AcuMS.aculab.com> <766ffacb7d4c48df81aea64204ff37d9@AcuMS.aculab.com> <5af24669b72c4bbb9456b53c397489a4@AcuMS.aculab.com> In-Reply-To: <5af24669b72c4bbb9456b53c397489a4@AcuMS.aculab.com> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-sctp@vger.kernel.org Message-ID: <20201011152843.xNL4l7G98sorrGyDVe40v_SubqWOT6vO7EbNJXTTRbo@z> Li4uDQo+ID4gPiBJZiBJIGR1bXAgb3V0IC9wcm9jL25ldC9zY3RwL2Fzc29jcyBhbmQgbG9vayB3 YXkgb3ZlciB0byB0aGUgcmlnaHQNCj4gPiA+IChvbiB0aGUgbmV4dCBtb25pdG9yIGJ1dCAxKSB0 aGVyZSBhcmUgdHdvIGNvbHVtbnMgSU5TIGFuZCBPVVRTLg0KPiA+ID4gSSd2ZSBqdXN0IHJlYWxp c2VkIHRoYXQgdGhlc2UgYXJlIHRoZSBudW1iZXIgb2Ygc3RyZWFtcy4NCj4gPiA+IE5vdyBhbGwg bXkgY29ubmVjdGlvbnMgYXJlIGxvb3BiYWNrIC0gc28gSSBzZWUgYm90aCBzb2NrZXRzIGZvciBl YWNoLg0KPiA+ID4gU28gSSdkIGV4cGVjdCB0aGUgSU5TIHRvIG1hdGNoIHRoZSBPVVRTIG9mIHRo ZSBwZWVyLg0KPiA+ID4gVGhpcyBpc24ndCB0cnVlLg0KPiA+ID4gV2hlbiB0aGUgdmFsdWUgc2hv dWxkIGJlIG5lZ290aWF0ZWQgZG93biB0aGUgT1VUUyB2YWx1ZSBpcyB1bmNoYW5nZWQuDQo+ID4g PiBTbyB0aGUga2VybmVsIGlzIHNlbmRpbmcgcGFja2V0cyB3aXRoIGlsbGVnYWwgc3RyZWFtIG51 bWJlcnMuDQo+ID4gPiBUaGVzZSBhcmUgYWNrZWQgYW5kIHRoZW4gc2lsZW50bHkgZGlzY2FyZGVk Lg0KPiANCj4gPiBkaWQgaXQgZG8gYWRkc3RyZWFtIHJlY29uZmlnIG9yIHJlY2VpdmUgYW55IGR1 cGxpY2F0ZSBDT09LSUUtRUNITyBpbiB5b3VyIGNhc2U/DQo+IA0KPiBFeHRyZW1lbHkgdW5saWtl bHkuDQo+IA0KPiBMb29raW5nIGF0IHRoZSBsYXRlc3QgdmVyc2lvbiBvZiBteSBkcml2ZXIgY29k ZQ0KPiAod2hpY2ggSSB3YXNuJ3QgdXNpbmcpIEkgd3JvdGUgdGhlIGZvbGxvd2luZzoNCj4gDQo+ ICAqIFNpbmNlIHRoZSBjb2RlIHRoYXQgbmVnb3RpYXRlcyB0aGUgbnVtYmVyIG9mIHN0cmVhbXMg Z290IGJyb2tlbg0KPiAgKiBpbiB2ZXJzaW9uIDUuMSB3ZSBuZWVkIHRvIGV4dHJhY3QgdGhlIGNv cnJlY3QgdmFsdWUgZnJvbSB0aGUNCj4gICogaW50ZXJuYWwgc3RydWN0dXJlcyB0byBhdm9pZCBT Q1RQIHNlbmRpbmcgbWVzc2FnZXMgdGhlIHJlbW90ZQ0KPiAgKiBzeXN0ZW0gd2lsbCBkaXNjYXJk Lg0KPiANCj4gICAgIC8qIHN0cmVhbS5vdXRjbnQgaXMgdGhlIHZhbHVlIHdlIHNob3VsZCBiZSB1 c2luZy4NCj4gICAgICAqIEJ1dCBrZXJuZWxzIDUuMSB0byA1LjggZmFpbCB0byByZWR1Y2UgaXQg YmFzZWQgb24gdGhlIG51bWJlcg0KPiAgICAgICogcmVjZWl2ZWQgZnJvbSB0aGUgcmVtb3RlIHN5 c3RlbS4NCj4gICAgICAqIFNvIGJvdW5kIGhlcmUgc28gdGhhdCB0cmFuc21pdHRlZCBtZXNzYWdl cyBkb24ndCBnZXQgZGlzY2FyZGVkLiAqLw0KPiAgICAgb3V0Y250ID0gYXNvYy0+c3RyZWFtLm91 dGNudDsNCj4gICAgIG51bV9vc3RyZWFtcyA9IGFzb2MtPmMuc2luaXRfbnVtX29zdHJlYW1zOw0K PiANCj4gSSB0aGluayB0aGVyZSB3YXMgYSBwYXRjaCBkb25lIGZvciA1LjkuDQo+IEl0IG5lZWRz IGJhY2stcG9ydGluZy4NCg0KWWVzLCBJIHdyb3RlIHRoZSBwYXRjaC4NCkFwcGxpZWQgdG8gbmV0 LW5leHQuDQoNCmh0dHBzOi8vZ2l0Lmtlcm5lbC5vcmcvcHViL3NjbS9saW51eC9rZXJuZWwvZ2l0 L25leHQvbGludXgtbmV4dC5naXQvY29tbWl0L25ldC9zY3RwL3N0cmVhbS5jP2lkPWFiOTIxZjNj ZGJlYzAxYzY4NzA1YTdhZGU4YmVjNjI4ZDU0MWZjMmINCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVy ZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5 bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==