From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 71880 invoked by alias); 26 Jun 2016 20:47:14 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 71869 invoked by uid 89); 26 Jun 2016 20:47:14 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=1.2 required=5.0 tests=AWL,BAYES_00,CYGWIN_OWNER_BODY,MIME_BASE64_BLANKS,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS,SPF_PASS autolearn=no version=3.3.2 spammy=Authority, asap, soderquist, Soderquist X-HELO: na01-by2-obe.outbound.protection.outlook.com Received: from mail-by2on0118.outbound.protection.outlook.com (HELO na01-by2-obe.outbound.protection.outlook.com) (207.46.100.118) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-SHA256 encrypted) ESMTPS; Sun, 26 Jun 2016 20:47:04 +0000 Received: from CY1PR07MB2199.namprd07.prod.outlook.com (10.164.112.29) by CY1PR07MB2198.namprd07.prod.outlook.com (10.164.112.28) with Microsoft SMTP Server (TLS) id 15.1.523.12; Sun, 26 Jun 2016 20:46:59 +0000 Received: from CY1PR07MB2199.namprd07.prod.outlook.com ([10.164.112.29]) by CY1PR07MB2199.namprd07.prod.outlook.com ([10.164.112.29]) with mapi id 15.01.0523.019; Sun, 26 Jun 2016 20:46:59 +0000 From: Bill Zissimopoulos To: "cygwin@cygwin.com" Subject: Re: POSIX permission mapping and NULL SIDs Date: Mon, 27 Jun 2016 10:26:00 -0000 Message-ID: References: <20160624195144.GB27089@calimero.vinschen.de> <20160624215948.GD27089@calimero.vinschen.de> In-Reply-To: <20160624215948.GD27089@calimero.vinschen.de> authentication-results: spf=none (sender IP is ) smtp.mailfrom=billziss@navimatics.com; x-ms-exchange-messagesentrepresentingtype: 1 x-ms-office365-filtering-correlation-id: 1f58504a-87ef-402e-9cc2-08d39e0304b4 x-microsoft-exchange-diagnostics: 1;CY1PR07MB2198;6:naSqeO8eDHyCjYvcLP7u+k4e0U7qk+gqmQivehmHdBBtaHBZ/zUmTvFJ0Am/MlMOf9a+NcyTlhTyDAAhGqFt+kUhpVjRPjx0fdl34pxmrSSFeZrc7w2L3P84BJsce7e6sxR70ZpnPisHb+0YgGGLqdmcOly0WYNfyFciZKnQdMRovzonMTnl+GdbafwbNI/43KqOI/IouaZ4jaNTd12c9LKFT7rCTIyIv1vO5XDe2MOpNRG2R4fyxBQpwHuWNWCAURUa2GbjNBu5lCm5m0W2kM2CL3gnoBbkhqM+MKZkw2FeOWo+POGxWwtt8Gh67UumZBksacUe0Ym1rcw2mW1GKQ==;5:E4UMRAHHsWaeeXAhibyCS5gd4q5I/m0iPMdSzChNBTNHzhBeKottJIuM80l3MaZPFUKrAnyGFgZO7mhd4+CrUxxq5T2p9LOg+Jt/FUWGEWX9/wJQ/ZP5j3LQWtN7I+EBbx7KJ+ddgtjk+5jYYhbiaw==;24:fQqCRN4HyYOYH/Qm8i3h4+Wk7YilA7OiBnrHrMNVEjXFqPHMO3Kd3DB7US2JdDaf8gQe0MTd3JayRB4+pKipDVtkejoM86XB02uUJ4dLxPM=;7:tPVLRRtu8bJ9Iw0iYpdQbLjSHXLBGYk1fSva4yb4rjQDBKhXXyWSKiCYz5yYWypLvA3imNRISG/Ss5Eblbv9dna02gU+99iw8gzMWx6BqVfYbsbd/TQFbwiCjlWEeVzsZGDVVWGIi5ldlYHrNOy/YhF8rIwH92be198qrNfZwTl/+dhW4Eho9mFXT20TPIN3OWBPzCrM9jZmqTKIGn5D3rwprSjA8muGmLGgXA8KGE6Y+TEHUo32HOw0dAj3sF9ZxL8FsuwHVD9As8Dmr7oxcw== x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:CY1PR07MB2198; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(192374486261705); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040130)(601004)(2401047)(8121501046)(5005006)(3002001)(10201501046)(6041072)(6043046);SRVR:CY1PR07MB2198;BCL:0;PCL:0;RULEID:;SRVR:CY1PR07MB2198; x-forefront-prvs: 0985DA2459 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(6009001)(7916002)(377454003)(199003)(24454002)(189002)(99286002)(6116002)(102836003)(189998001)(106356001)(2351001)(3280700002)(105586002)(3660700001)(87936001)(36756003)(106116001)(11100500001)(15975445007)(92566002)(2501003)(122556002)(86362001)(450100001)(5002640100001)(305945005)(10400500002)(101416001)(50986999)(54356999)(77096005)(7736002)(7846002)(8936002)(66066001)(19580405001)(19580395003)(81156014)(551544002)(5640700001)(2906002)(97736004)(81166006)(8676002)(2900100001)(1730700003)(93886004)(2950100001)(107886002)(110136002)(3846002)(76176999)(68736007)(586003)(94096001);DIR:OUT;SFP:1102;SCL:1;SRVR:CY1PR07MB2198;H:CY1PR07MB2199.namprd07.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:en; received-spf: None (protection.outlook.com: navimatics.com does not designate permitted sender hosts) spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: <1E5ED052FBD62F40AEF6170D0CA1BF6C@namprd07.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: navimatics.com X-MS-Exchange-CrossTenant-originalarrivaltime: 26 Jun 2016 20:46:58.3192 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 21071be9-4f9a-413b-89ac-8353a5d2410a X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR07MB2198 X-IsSubscribed: yes X-SW-Source: 2016-06/txt/msg00374.txt.bz2 T24gNi8yNC8xNiwgMjo1OSBQTSwgIkNvcmlubmEgVmluc2NoZW4iIDxjeWd3 aW4tb3duZXJAY3lnd2luLmNvbSBvbiBiZWhhbGYNCm9mIGNvcmlubmEtY3ln d2luQGN5Z3dpbi5jb20+IHdyb3RlOg0KDQoNCj4+PklmIHlvdSB3YW50IHNv bWUgc3BlY2lmaWMgbWFwcGluZyB3ZSBjYW4gYXJyYW5nZSB0aGF0LCBidXQg aXQgbXVzdCBub3QNCj4+ID5iZSB0aGUgTlVMTCBTSUQuICBJZiB5b3Uga25v dyB5b3UncmUgY29tbXVuaWNhdGluZyB3aXRoIGEgQ3lnd2luDQo+PnByb2Nl c3MsDQo+PiA+d2hhdCBhYm91dCB1c2luZyBhbiBhcmJpdHJhcnksIHVudXNl ZCBTSUQgbGlrZSBTLTEtMC00Mj8NCj4+IA0KPj4gSSBhbSBpbmNsaW5lZCB0 byB0cnkgUy0xLTUtNyAoQW5vbnltb3VzKS4gQnV0IEkgZG8gbm90IGtub3cg aWYgdGhhdCBpcyBhDQo+PiBiYWQgY2hvaWNlIGZvciBzb21lIHJlYXNvbiBv ciBvdGhlci4NCj4NCj5JIHRob3VnaHQgYWJvdXQgQW5vbnltb3VzIG15c2Vs ZiB3aGVuIEkgd3JvdGUgbXkgcmVwbHkgdG8geW91ciBPUC4gIEkNCj5yZWZy YWluZWQgZnJvbSBtZW50aW9uaW5nIGl0IGJlY2F1c2UgaXQgbWlnaHQgaGF2 ZSBzb21lIHVuZXhwZWN0ZWQgc2lkZQ0KPmVmZmVjdCB3ZSdyZSBub3QgYXdh cmUgYWJvdXQuDQoNCkkgZW5kZWQgdXAgaW1wbGVtZW50aW5nIHRoaXMgYSBj b3VwbGUgb2YgZGF5cyBhZ28uIEkgd2FzIGp1c3Qgc3BlbmRpbmcgYQ0KbGF6 eSBTdW5kYXkgbW9ybmluZyBhbmQgdGhlbiBpdCBoaXQgbWU6IHRoaXMgaXMg YW4gZXhjZXB0aW9uYWxseSBiYWQgaWRlYS4NCg0KVGhlIHByb2JsZW0gaXMg dGhhdCBXaW5kb3dzIHVzZXMgdGhlIEFub255bW91cyBpZGVudGl0eSBmb3Ig YWNjb3VudHMgd2hvDQpoYXZlIG5vdCBsb2dnZWQgaW4gdXNpbmcgYSBwYXNz d29yZCAoYXMgcGVyIEVyaWsgU29kZXJxdWlzdOKAmXMgZW1haWwNCnJlZ2Fy ZGluZyBJSVMgYmVoYXZpb3IpLiBGaWxlcyBpbiBGVVNFIGZpbGUgc3lzdGVt cyB0aGF0IGhhdmUgYSBVSUQgdGhhdA0KY2Fubm90IGJlIG1hcHBlZCB0byBh IFNJRCwgd2lsbCBzdWRkZW5seSBiZSBvd25lZCBieSB0aGF0IEFub255bW91 cyB1c2VyIQ0KDQpPYnZpb3VzbHkgdGhpcyBpcyBhIGh1Z2Ugc2VjdXJpdHkg aG9sZS4gSSBpbnRlbmQgdG8gZml4IHRoaXMgQVNBUCwgYnV0IEkNCmFtIG5v dyBiYWNrIHRvIHdoZXJlIHdlIHN0YXJ0ZWQuIFRoZSBvYnZpb3VzIFNJRCB0 byB1c2UgaXMgdGhlIE5VTEwgU0lELA0KYnV0IHRoYXQgaXMgYWxyZWFkeSB1 c2VkIGJ5IEN5Z3dpbiBmb3Igb3RoZXIgcHVycG9zZXMuDQoNCj4+IFRoZSBt YWluIHJlYXNvbiB0aGF0IEkgYW0gd2Vhcnkgb2YgdXNpbmcgYW4gdW51c2Vk IFNJRCBpcyB0aGF0IE1pY3Jvc29mdA0KPj4gbWF5IGRlY2lkZSB0byBhc3Np Z24gc29tZSBzcGVjaWFsIHBvd2VycyB0byBpdCBpbiBhIGZ1dHVyZSByZWxl YXNlIChlLmcuDQo+PiBHb2RNb2RlIFNJRCkuIEJ1dCBJIGFncmVlIHRoYXQg dGhpcyBpcyByYXRoZXIgdW5saWtlbHkgaW4gdGhlIFMtMS0wLVgNCj4+IG5h bWVzcGFjZS4NCj4NCj5JIHRoaW5rIGl0J3MgdmVyeSB1bmxpa2VseS4gIFdl IGNvdWxkIGNob3NlIGFueSBSSUQgdmFsdWUgd2UgbGlrZSBhbmQNCj50aGUg Y2hhbmNlIGZvciBjb2xsaXNpb24gaXMgbmlsLiAgV2hlbiBJIGNyZWF0ZWQg dGhlIG5ldyBpbXBsZW1lbnRhdGlvbg0KPmZvciBQT1NJWCBBQ0xzLCBJIHRv eWVkIGFyb3VuZCB3aXRoIHRoaXMgYWxyZWFkeSBhbmQgdXNlZCBhIHNwZWNp YWwNCj5DeWd3aW4gU0lEIHdpdGhpbiB0aGUgTlVMTCBTSUQgQVVUSE9SSVRZ LiAgSSdtIG5vdCBlbnRpcmVseSBzdXJlIHdoeSBJDQo+Y2hhbmdlZCB0aGlz IHRvIHRoZSBOVUxMIFNJRCBkZW55IEFDRS4gIEkgdGhpbmsgSSBkaXNsaWtl ZCB0aGUgZmFjdCB0aGF0DQo+YWxtb3N0IGV2ZXJ5IEN5Z3dpbiBBQ0wgd291 bGQgY29udGFpbiBhIG15c3RlcmlvdXMgInVua25vd24gU0lEIi4NCg0KSWRl YWxseSB3ZSBzaG91bGQgY2hvb3NlIGEgU0lEIHRoYXQ6DQoNCigxKSBJcyB2 ZXJ5IHVubGlrZWx5IHRvIGJlIHVzZWQgYnkgTWljcm9zb2Z0IGF0IGFueSBw b2ludCBpbiB0aGUgZnV0dXJlLg0KKDIpIENhbm5vdCBiZSBhc3NvY2lhdGVk IHRvIGEgdXNlciBsb2dvbiBmb3IgYW55IHJlYXNvbiAoc2VlIHByb2JsZW0g d2l0aA0KQW5vbnltb3VzIFNJRCkgYWJvdmUuDQooMykgTWFwcyB0byBhIHJl YXNvbmFibGUgVUlEIGluIEN5Z3dpbi4NCg0KSSBwcm9wb3NlIHRoZSBmb2xs b3dpbmcgU0lEL1VJRCBtYXBwaW5nOg0KDQogICAgUy0xLTAtOTkgPD0+IFVJ RCAweGZmZmZmZmZmICgzMi1iaXQgLTEpDQoNClRoaXMgaXMgYSBTSUQgaW4g dGhlIFMtMS0wIChOdWxsIEF1dGhvcml0eSkgbmFtZXNwYWNlIChzYW1lIG9u ZSB0aGF0DQpjb250YWlucyB0aGUgTlVMTCBTSUQpLCB3aGljaCBpcyB1bmxp a2VseSB0byBiZSB1c2VkIGJ5IE1pY3Jvc29mdC4gU28gaXQNCmxpa2VseSBz YXRpc2ZpZXMgKDEpLg0KDQpGb3IgdGhlIHNhbWUgcmVhc29uICh0aGF0IGl0 IGlzIGEgbmV3L3VudXNlZCBTSUQgaW4gdGhlIFMtMS0wKSBuYW1lc3BhY2Us DQpJIHRoaW5rIGl0IGFsc28gc2F0aXNmaWVzICgyKS4NCg0KSWYgd2UgZm9s bG93IHRoZSBydWxlcyBmcm9tIEN5Z3dpbuKAmXMgIlBPU0lYIGFjY291bnRz LCBwZXJtaXNzaW9uLCBhbmQNCnNlY3VyaXR54oCdIGRvY3VtZW50IFtJRE1B UF0sIHRoZSBTSUQgUy0xLTAtOTkgbWFwcyB0byAweDEwMDYzLiBCdXQgd2Ug Y2FuDQptYWtlIGEgc3BlY2lhbCBydWxlIGZvciB0aGlzIFNJRCB0byBtYXAg aXQgdG8gYSBkaWZmZXJlbnQgVUlELiBNYXBwaW5nIGl0DQp0byAtMSBtYXkg YmUgdGhlIGVhc2llc3Qgb3B0aW9uLCBidXQgcGVyaGFwcyB3ZSBjYW4gYWxz byBjb25zaWRlciBtYXBwaW5nDQppdCB0byAweGZmZmZmZmZlICgtMikuDQoN CkJpbGwNCg0KW0lETUFQXSBodHRwczovL2N5Z3dpbi5jb20vY3lnd2luLXVn LW5ldC9udHNlYy5odG1sDQoNCg==