Hi slow, I love the trace you sent, it's beautiful. I've verified that Frame 139 unexpectedly does not break lease.
I thought it was interesting that READ_EA access also breaks the lease, but I'm not certain why. Thank you for pointing this out and providing the trace. I will file a request to update the doc. Best regards, Jeff McCashland | Senior Escalation Engineer | Microsoft Protocol Open Specifications Team Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone: (UTC-08:00) Pacific Time (US and Canada) Local country phone number found here: http://support.microsoft.com/globalenglish | Extension 1138300 We value your feedback. My manager is Jeremy Chapman (jeremyc), +1 (469) 775-2475 -----Original Message----- From: Jeff McCashland <je...@microsoft.com> Sent: Tuesday, March 3, 2020 6:33 AM To: Ralph Boehme <s...@samba.org> Cc: cifs-protocol@lists.samba.org; support <supp...@mail.support.microsoft.com> Subject: [REG:120030321000983] SMB2: opening file for READ_CONTROL doesn't trigger lease break [DocHelp to BCC, support on CC, SR ID on Subject] Hi slow, Thank you for sending in your question and trace. We have created SR 120030321000983 to track this issue. I will review your trace and follow up. Best regards, Jeff McCashland | Senior Escalation Engineer | Microsoft Protocol Open Specifications Team Phone: +1 (425) 703-8300 x38300 | Hours: 9am-5pm | Time zone: (UTC-08:00) Pacific Time (US and Canada) Local country phone number found here: https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsupport.microsoft.com%2Fglobalenglish&data=02%7C01%7Cjeffm%40microsoft.com%7C667b2ec88e304d007fa608d7bf7fc3b0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637188427782105524&sdata=MWDwCaq3xZCb9LVntik9EFZO%2Fpbj%2BCg2NU63US1uciw%3D&reserved=0 | Extension 1138300 We value your feedback. My manager is Jeremy Chapman (jeremyc), +1 (469) 775-2475 -----Original Message----- From: Ralph Boehme <s...@samba.org> Sent: Tuesday, March 3, 2020 2:57 AM To: Interoperability Documentation Help <doch...@microsoft.com> Cc: cifs-protocol@lists.samba.org Subject: [EXTERNAL] SMB2: opening file for READ_CONTROL doesn't trigger lease break Hello dochelp, according to MS-FSA 2.1.4.12 opening a file with at most FILE_READ_ATTRIBUTES, FILE_WRITE_ATTRIBUTES, or SYNCHRONIZE avoids triggering an oplock break: If OpParams.DesiredAccess contains no flags other than FILE_READ_ATTRIBUTES, FILE_WRITE_ATTRIBUTES, or SYNCHRONIZE the algorithm returns at this point. However, testing all valid file access bits individually against a Windows 2016 server reveals that an access mask of READ_CONTROL also doesn't trigger an oplock break. Attached is a network trace of a testcase that tests all possible file access masks. The testcase with READ_CONTROL begins in packet 137 (request open with RWH lease), the open with READ_CONTROL is in packet 139. Can you clarify? Thanks! -slow -- Ralph Boehme, Samba Team https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsamba.org%2F&data=02%7C01%7Cjeffm%40microsoft.com%7C667b2ec88e304d007fa608d7bf7fc3b0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637188427782105524&sdata=U%2BoR4clzvSJDabbx%2FkvQvH0YZsxNN4dAB49qq8FozaU%3D&reserved=0 Samba Developer, SerNet GmbH https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsernet.de%2Fen%2Fsamba%2F&data=02%7C01%7Cjeffm%40microsoft.com%7C667b2ec88e304d007fa608d7bf7fc3b0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637188427782105524&sdata=75szehwAWdQPCIYOiboZmgr7t6hjlqiW3Bnemvw9oBg%3D&reserved=0 GPG-Fingerprint FAE2C6088A24252051C559E4AA1E9B7126399E46 _______________________________________________ cifs-protocol mailing list cifs-protocol@lists.samba.org https://lists.samba.org/mailman/listinfo/cifs-protocol
