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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36FB0C00140 for ; Tue, 2 Aug 2022 16:02:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230347AbiHBQCH (ORCPT ); Tue, 2 Aug 2022 12:02:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37486 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236308AbiHBQBq (ORCPT ); Tue, 2 Aug 2022 12:01:46 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2FE12BC25 for ; Tue, 2 Aug 2022 09:01:11 -0700 (PDT) Received: from fraeml712-chm.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Ly05y65Pxz6GD4x; Tue, 2 Aug 2022 23:58:46 +0800 (CST) Received: from fraeml714-chm.china.huawei.com (10.206.15.33) by fraeml712-chm.china.huawei.com (10.206.15.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 2 Aug 2022 18:01:09 +0200 Received: from fraeml714-chm.china.huawei.com ([10.206.15.33]) by fraeml714-chm.china.huawei.com ([10.206.15.33]) with mapi id 15.01.2375.024; Tue, 2 Aug 2022 18:01:09 +0200 From: Roberto Sassu To: Alexei Starovoitov CC: Kumar Kartikeya Dwivedi , "bpf@vger.kernel.org" , Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann Subject: RE: [PATCH bpf-next v1 1/2] bpf: Add support for per-parameter trusted args Thread-Topic: [PATCH bpf-next v1 1/2] bpf: Add support for per-parameter trusted args Thread-Index: AQHYoZEjMBI1olYJVEOQ/pvQfthTZq2TaAQAgAAI9nD//+cNAIAABMaAgAeUDICAAHkaoIAANAAAgAAm2MA= Date: Tue, 2 Aug 2022 16:01:09 +0000 Message-ID: References: <20220727081559.24571-1-memxor@gmail.com> <20220727081559.24571-2-memxor@gmail.com> <34ee6960df604501a5348eac7b1c5768@huawei.com> <99f39e29a9ca416cb005ba690c7d7e51@huawei.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.81.203.54] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org PiBGcm9tOiBBbGV4ZWkgU3Rhcm92b2l0b3YgW21haWx0bzphbGV4ZWkuc3Rhcm92b2l0b3ZAZ21h aWwuY29tXQ0KPiBTZW50OiBUdWVzZGF5LCBBdWd1c3QgMiwgMjAyMiA1OjA2IFBNDQo+IE9uIFR1 ZSwgQXVnIDIsIDIwMjIgYXQgMzowNyBBTSBSb2JlcnRvIFNhc3N1IDxyb2JlcnRvLnNhc3N1QGh1 YXdlaS5jb20+DQo+IHdyb3RlOg0KPiA+DQo+ID4gPiBGcm9tOiBBbGV4ZWkgU3Rhcm92b2l0b3Yg W21haWx0bzphbGV4ZWkuc3Rhcm92b2l0b3ZAZ21haWwuY29tXQ0KPiA+ID4gU2VudDogVHVlc2Rh eSwgQXVndXN0IDIsIDIwMjIgNjo0NiBBTQ0KPiA+ID4NCj4gPiA+IE9uIFRodSwgSnVsIDI4LCAy MDIyIGF0IDI6MDIgQU0gS3VtYXIgS2FydGlrZXlhIER3aXZlZGkNCj4gPiA+IDxtZW14b3JAZ21h aWwuY29tPiB3cm90ZToNCj4gPiA+ID4NCj4gPiA+ID4gT24gVGh1LCAyOCBKdWwgMjAyMiBhdCAx MDo0NSwgS3VtYXIgS2FydGlrZXlhIER3aXZlZGkNCj4gPG1lbXhvckBnbWFpbC5jb20+DQo+ID4g PiB3cm90ZToNCj4gPiA+ID4gPg0KPiA+ID4gPiA+IE9uIFRodSwgMjggSnVsIDIwMjIgYXQgMTA6 MTgsIFJvYmVydG8gU2Fzc3UNCj4gPHJvYmVydG8uc2Fzc3VAaHVhd2VpLmNvbT4NCj4gPiA+IHdy b3RlOg0KPiA+ID4gPiA+ID4NCj4gPiA+ID4gPiA+ID4gRnJvbTogUm9iZXJ0byBTYXNzdSBbbWFp bHRvOnJvYmVydG8uc2Fzc3VAaHVhd2VpLmNvbV0NCj4gPiA+ID4gPiA+ID4gU2VudDogVGh1cnNk YXksIEp1bHkgMjgsIDIwMjIgOTo0NiBBTQ0KPiA+ID4gPiA+ID4gPiA+IEZyb206IEt1bWFyIEth cnRpa2V5YSBEd2l2ZWRpIFttYWlsdG86bWVteG9yQGdtYWlsLmNvbV0NCj4gPiA+ID4gPiA+ID4g PiBTZW50OiBXZWRuZXNkYXksIEp1bHkgMjcsIDIwMjIgMTA6MTYgQU0NCj4gPiA+ID4gPiA+ID4g PiBTaW1pbGFyIHRvIGhvdyB3ZSBkZXRlY3QgbWVtLCBzaXplIHBhaXJzIGluIGtmdW5jLCB0ZWFj aCB2ZXJpZmllciB0bw0KPiA+ID4gPiA+ID4gPiA+IHRyZWF0IF9fcmVmIHN1ZmZpeCBvbiBhcmd1 bWVudCBuYW1lIHRvIGltcGx5IHRoYXQgaXQgbXVzdCBiZSBhDQo+IHRydXN0ZWQNCj4gPiA+ID4g PiA+ID4gPiBhcmcgd2hlbiBwYXNzZWQgdG8ga2Z1bmMsIHNpbWlsYXIgdG8gdGhlIGVmZmVjdCBv Zg0KPiBLRl9UUlVTVEVEX0FSR1MNCj4gPiA+IGZsYWcNCj4gPiA+ID4gPiA+ID4gPiBidXQgbGlt aXRlZCB0byB0aGUgc3BlY2lmaWMgcGFyYW1ldGVyLiBUaGlzIGlzIHJlcXVpcmVkIHRvIGVuc3Vy ZSB0aGF0DQo+ID4gPiA+ID4gPiA+ID4ga2Z1bmMgdGhhdCBvcGVyYXRlIG9uIHNvbWUgb2JqZWN0 IG9ubHkgd29yayBvbiBhY3F1aXJlZCBwb2ludGVycw0KPiBhbmQNCj4gPiA+IG5vdA0KPiA+ID4g PiA+ID4gPiA+IG5vcm1hbCBQVFJfVE9fQlRGX0lEIHdpdGggc2FtZSB0eXBlIHdoaWNoIGNhbiBi ZSBvYnRhaW5lZCBieQ0KPiA+ID4gcG9pbnRlcg0KPiA+ID4gPiA+ID4gPiA+IHdhbGtpbmcuIFJl bGVhc2UgZnVuY3Rpb25zIG5lZWQgbm90IHNwZWNpZnkgc3VjaCBzdWZmaXggb24gcmVsZWFzZQ0K PiA+ID4gPiA+ID4gPiA+IGFyZ3VtZW50cyBhcyB0aGV5IGFyZSBhbHJlYWR5IGV4cGVjdGVkIHRv IHJlY2VpdmUgb25lIHJlZmVyZW5jZWQNCj4gPiA+ID4gPiA+ID4gPiBhcmd1bWVudC4NCj4gPiA+ ID4gPiA+ID4NCj4gPiA+ID4gPiA+ID4gVGhhbmtzLCBLdW1hci4gSSB3aWxsIHRyeSBpdC4NCj4g PiA+ID4gPiA+DQo+ID4gPiA+ID4gPiBVaG0uIEkgcmVhbGl6ZWQgdGhhdCBJIHdhcyBhbHJlYWR5 IHVzaW5nIGFub3RoZXIgc3VmZml4LA0KPiA+ID4gPiA+ID4gX19tYXliZV9udWxsLCB0byBpbmRp Y2F0ZSB0aGF0IGEgY2FsbGVyIGNhbiBwYXNzIE5VTEwgYXMNCj4gPiA+ID4gPiA+IGFyZ3VtZW50 Lg0KPiA+ID4gPiA+ID4NCj4gPiA+ID4gPiA+IFdvdWxkbid0IHByb2JhYmx5IHdvcmsgd2VsbCB3 aXRoIHR3byBzdWZmaXhlcy4NCj4gPiA+ID4gPiA+DQo+ID4gPiA+ID4NCj4gPiA+ID4gPiBUaGVu IHlvdSBjYW4gbWF5YmUgZXh0ZW5kIGl0IHRvIHBhcnNlIHR3byBzdWZmaXhlcyBhdCBtb3N0IChm b3Igbm93DQo+ID4gPiBhdGxlYXN0KT8NCj4gPiA+ID4gPg0KPiA+ID4gPiA+ID4gSGF2ZSB5b3Ug Y29uc2lkZXJlZCB0byBleHRlbmQgQlRGX0lEX0ZMQUdTIHRvIHRha2UgZml2ZQ0KPiA+ID4gPiA+ ID4gZXh0cmEgYXJndW1lbnRzLCB0byBzZXQgZmxhZ3MgZm9yIGVhY2gga2Z1bmMgcGFyYW1ldGVy Pw0KPiA+ID4gPiA+ID4NCj4gPiA+ID4gPg0KPiA+ID4gPiA+IEkgZGlkbid0IHVuZGVyc3RhbmQg dGhpcy4gRmxhZ3MgcGFyYW1ldGVyIGlzIGFuIE9SIG9mIHRoZSBmbGFncyB5b3UNCj4gPiA+ID4g PiBzZXQsIHdoeSB3b3VsZCB3ZSB3YW50IHRvIGV4dGVuZCBpdCB0byB0YWtlIDUgYXJncz8NCj4g PiA+ID4gPiBZb3UgY2FuIGp1c3Qgb3IgZjEgfCBmMiB8IGYzIHwgZjQgfCBmNSwgYXMgbWFueSBh cyB5b3Ugd2FudC4NCj4gPiA+ID4NCj4gPiA+ID4gT2gsIHNvIHlvdSBtZWFuIGhhdmluZyA1IG1v cmUgYXJncyB0byBpbmRpY2F0ZSBmbGFncyBvbiBlYWNoDQo+ID4gPiA+IHBhcmFtZXRlcj8gSXQg aXMgcG9zc2libGUsIGJ1dCBJIHRoaW5rIHRoZSBzY2hlbWUgZm9yIG5vdyB3b3JrcyBvay4gSWYN Cj4gPiA+ID4geW91IGV4dGVuZCBpdCB0byBwYXJzZSB0d28gc3VmZml4ZXMsIGl0IHNob3VsZCBi ZSBmaW5lLiBZZXMsIHRoZQ0KPiA+ID4gPiB2YXJpYWJsZSBuYW1lIHdvdWxkIGJlIHVnbHksIGJ1 dCB5b3UgY2FuIGp1c3QgbWFrZSBhIGNvcHkgaW50byBhDQo+ID4gPiA+IHByb3Blcmx5IG5hbWVk IG9uZS4gVGhpcyBpcyB0aGUgYmVzdCB3ZSBjYW4gZG8gd2l0aG91dCBzd2l0Y2hpbmcgdG8NCj4g PiA+ID4gQlRGIHRhZ3MuIFdlIGNhbiByZXZpc2l0IHRoaXMgd2hlbiB3ZSBzdGFydCBoYXZpbmcg NCBvciA1IHRhZ3Mgb24gYQ0KPiA+ID4gPiBzaW5nbGUgcGFyYW1ldGVyLg0KPiA+ID4gPg0KPiA+ ID4gPiBUbyBtYWtlIGl0IGEgYml0IGxlc3MgdmVyYm9zZSB5b3UgY291bGQgcHJvYmFibHkgY2Fs bCBtYXliZV9udWxsIGp1c3QgbnVsbD8NCj4gPiA+DQo+ID4gPiBUaGFuayB5b3UgZm9yIHBvc3Rp bmcgdGhlIHBhdGNoLg0KPiA+ID4gSXQgc3RpbGwgZmVlbHMgdGhhdCB0aGlzIGV4dHJhIGZsZXhp YmlsaXR5IGdldHMgY29udm9sdXRlZC4NCj4gPiA+IEknbSBub3Qgc3VyZSBSb2JlcnRvJ3Mga2Z1 bmMgYWN0dWFsbHkgbmVlZHMgX19yZWYuDQo+ID4gPiBBbGwgcG9pbnRlcnMgc2hvdWxkIGJlIHBv aW50ZXJzLiBIYWNraW5nIC0xIGFuZCAtMiBpbnRvIGEgcG9pbnRlcg0KPiA+ID4gaXMgc29tZXRo aW5nIHRoYXQga2V5IGluZnJhIGRpZCwgYnV0IGl0IGRvZXNuJ3QgbWVhbiB0aGF0DQo+ID4gPiB3 ZSBoYXZlIHRvIGNhcnJ5IG92ZXIgaXQgaW50byBicGYga2Z1bmMuDQo+ID4NCj4gPiBUaGVyZSBp cyBhIHNlcGFyYXRlIHBhcmFtZXRlciBmb3IgdGhlIGtleXJpbmcgSURzIHRoYXQgb25seQ0KPiA+ IHZlcmlmeV9wa2NzN19zaWduYXR1cmUoKSB1bmRlcnN0YW5kcy4gVHlwZSBjYXN0aW5nIGlzIGRv bmUNCj4gPiBpbnRlcm5hbGx5IGluIHRoZSBicGZfdmVyaWZ5X3BrY3M3X3NpZ25hdHVyZSgpIGtm dW5jLg0KPiA+DQo+ID4gVGhlIG90aGVyIGlzIGFsd2F5cyBhIHZhbGlkIHN0cnVjdCBrZXkgcG9p bnRlciBvciBOVUxMLCBjb21pbmcNCj4gPiBmcm9tIGJwZl9sb29rdXBfdXNlcl9rZXkoKSAoYWNx dWlyZSBmdW5jdGlvbikuIEkgZXh0ZW5kZWQNCj4gPiBLdW1hcidzIHBhdGNoIGZ1cnRoZXIgdG8g YW5ub3RhdGUgdGhlIHN0cnVjdCBrZXkgcGFyYW1ldGVyDQo+ID4gd2l0aCB0aGUgX3JlZl9udWxs IHN1ZmZpeCwgdG8gYWNjZXB0IGEgcmVmZXJlbmNlZCBwb2ludGVyIG9yIE5VTEwsDQo+ID4gaW5z dGVhZCBvZiBqdXN0IHJlZmVyZW5jZWQuDQo+IA0KPiBJIGRvbid0IHRoaW5rIGl0J3MgYSBnb29k IHRyYWRlb2ZmIGNvbXBsZXhpdHkgd2lzZS4NCj4gIT1udWxsIGNoZWNrIGNhbiBiZSBkb25lIGlu IHJ1bnRpbWUgYnkgdGhlIGhlbHBlci4NCg0KTm90IHN1cmUgSSBmb2xsb3cuIGJwZl9sb29rdXBf dXNlcl9rZXkoKSBtaWdodCBub3QgZmluZA0KdGhlIGtleSB5b3UgYXNrZWQgZm9yLCBzbyBpdCB3 aWxsIHJldHVybiBOVUxMLg0KDQpEaWQgeW91IG1lYW4gdGhhdCBJIHNob3VsZCBub3Qgc2V0IEtG X1JFVF9OVUxMIGZvcg0KYnBmX2xvb2t1cF91c2VyX2tleSgpPw0KDQpUaGF0IGFueXdheSB3b27i gJl0IGhlbHAgaWYgeW91IHVzZSB0aGUgc3lzdGVtIGtleXJpbmcsDQp0aGUgYWx0ZXJuYXRpdmUg cGFyYW1ldGVyLiBUaGUgdXNlciBrZXlyaW5nIGlzIHRoZSBvdGhlcg0Kb25lLCByZXR1cm5lZCBi eSBicGZfbG9va3VwX3VzZXJfa2V5KCkuDQoNCldoZW4geW91IHNwZWNpZnkgYSBzeXN0ZW0ga2V5 cmluZywgdGhlIHVzZXIga2V5cmluZyBzaG91bGQNCmJlIE5VTEwsIHRvIGluZGljYXRlIHRoYXQg dGhlIHBhcmFtZXRlciBzaG91bGQgbm90IGJlDQp1c2VkLiBUaGlzIHdhcyBzdWdnZXN0ZWQgYnkg Ym90aCBKb2huIGFuZCBEYW5pZWwuDQoNClNvLCBpdCBzZWVtcyB1bmF2b2lkYWJsZSB0byBhbm5v dGF0ZSB0aGUga2V5cmluZyBwYXJhbWV0ZXINCndpdGggX19yZWZfbnVsbCwgb3IgYXQgbGVhc3Qg d2l0aCBfX251bGwuIF9fcmVmX251bGwgd291bGQgYmUNCmJldHRlciwgdG8gcmVxdWlyZSBhIHJl ZmVyZW5jZWQgcGFyYW1ldGVyLg0KDQo+IFRoZSB0eXBlIGNhc3QgaXMgYSBzaWduIG9mIHNvbWV0 aGluZyBmaXNoeSBpbiB0aGUgZGVzaWduLg0KDQpTaW5jZSB0aGlzIGlzIHdoYXQgdmVyaWZ5X3Br Y3M3X3NpZ25hdHVyZSgpIGFjY2VwdHMsIEkgZ3Vlc3MNCml0IGlzIHRoZSBvbmx5IG9wdGlvbi4N Cg0KUm9iZXJ0bw0K