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Andriy Gapon 602cf4e4a7 MFV r319951: 8311 ZFS_READONLY is a little too strict 
illumos/illumos-gate@2889ec41c0
2889ec41c0

https://www.illumos.org/issues/8311
  Description:
  There was a misunderstanding about the enforcement details of the "Read-only"
  flag introduced for SMB/CIFS compatibility, way back in 2007 in the Sun PSARC
  2007/315 case.
  The original authors thought enforcement of the READONLY flag should work
  similarly as the IMMUTABLE flag. Unfortunately, that enforcement is
  incompatible with the expectations of Windows applications using this feature
  through the SMB service. Applications assume (and the MS File System Algorithms
  MS-FSA confirms they should) that an SMB client can:
  (a) Open an SMB handle on a file with read/write access,
  (b) Set the DOS attributes to include the READONLY flag,
  (c) continue to have write access via that handle.
  This access model is essentially the same as a Unix/POSIX application that
  creates a file (with read/write access), uses fchmod() to change the file mode
  to something not granting write access (i.e. 0444), and then continues to write
  that file using the open handle it got before the mode change.
  Currently, the SMB server works-around this problem in a way that will become
  difficult to maintain as we implement support for SMB3 persistent handles, so
  SMB depends on this fix.
  I've written a test program that can be used to demonstrate this problem, and
  added it to zfs-tests (tests/functional/acl/cifs/cifs_attr_004_pos).
  It currently fails, but will pass when this problem fixed.
  Steps to Reproduce:
    Run the test program on a ZFS file system.
  Expected Results:
    Pass
  Actual Results:
    Fail.

Reviewed by: Sanjay Nadkarni <sanjay.nadkarni@nexenta.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Andrew Stormont <andyjstormont@gmail.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Approved by: Prakash Surya <prakash.surya@delphix.com>
Author: Gordon Ross <gwr@nexenta.com>
MFC after:	2 weeks
2017-06-14 16:55:47 +00:00
bin Use {T:Capacity} for header so html output looks tidy 2017-06-13 05:38:40 +00:00
cddl MFV r319945,r319946: 8264 want support for promoting datasets in libzfs_core 2017-06-14 16:31:36 +00:00
contrib Chase r319848: remove -v option from getopt() call. 2017-06-14 02:42:38 +00:00
crypto Merge OpenSSL 1.0.2l. 2017-05-25 20:52:16 +00:00
etc Add some initial basic tests for du(1) 2017-06-12 07:43:58 +00:00
gnu Remove groff from base 2017-06-07 23:00:34 +00:00
include Use __BSD_VISIBLE test instead checking for absense of _POSIX_SOURCE. 2017-05-24 09:25:13 +00:00
kerberos5 Disconnect heimdal version of qsort.c from build because we are already 2017-05-26 06:09:11 +00:00
lib 8264 want support for promoting datasets in libzfs_core 2017-06-14 16:23:15 +00:00
libexec Add MLINKS for atf-sh(3) to each of the functions it implements 2017-06-07 21:18:28 +00:00
release Remove groff from base 2017-06-07 23:00:34 +00:00
rescue DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
sbin sbin/ipfw: strcpy, strncpy => strlcpy 2017-06-13 14:57:48 +00:00
secure Merge OpenSSL 1.0.2l. 2017-05-25 20:52:16 +00:00
share Add myself (rlibby) as a src committer and markj as my mentor. 2017-06-13 23:50:55 +00:00
sys MFV r319951: 8311 ZFS_READONLY is a little too strict 2017-06-14 16:55:47 +00:00
targets Enable llvm-objdump by default per r310775 2017-05-16 03:12:51 +00:00
tests Add the ccr0 device to the opencrypto tests against the NIST KAT tests. 2017-06-08 21:34:54 +00:00
tools Update scescx test to print syscall number and arguments. 2017-06-12 21:16:37 +00:00
usr.bin style(9) fixes. 2017-06-13 16:19:32 +00:00
usr.sbin bsdinstall: support Auto ZFS mode for ARM64 2017-06-12 19:31:26 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2016-12-31 12:41:42 +00:00
LOCKS Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Due to time constraints remove myself as a vmm(4) maintainer. 2017-04-15 22:42:23 +00:00
Makefile By popular demand: change MAKE_GENERIC_KERNELS to MAKE_LINT_KERNELS. 2017-06-13 01:12:37 +00:00
Makefile.inc1 remove stale dependencies for utimens* wrappers removed in r319663 2017-06-12 19:45:05 +00:00
Makefile.libcompat Support skipping 'make obj' tree-walk. 2017-05-09 20:21:38 +00:00
ObsoleteFiles.inc Add more simple positive tests for chown(1) 2017-06-11 19:31:42 +00:00
README Import OpenSSL 1.0.2l. 2017-05-25 19:38:38 +00:00
README.md Remove hard line breaks from README.md 2017-03-01 15:39:58 +00:00
UPDATING Remove groff from base 2017-06-07 23:00:34 +00:00

README.md

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information).

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7) and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables.

The buildkernel and installkernel targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process. See build(7), config(8), and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information.

Note: If you want to build and install the kernel with the buildkernel and installkernel targets, you might need to build world before. More information is available in the handbook.

The kernel configuration files reside in the sys/<arch>/conf sub-directory. GENERIC is the default configuration used in release builds. NOTES contains entries and documentation for all possible devices, not just those commonly used.

Source Roadmap:

bin				System/user commands.

cddl			Various commands and libraries under the Common Development  
				and Distribution License.

contrib			Packages contributed by 3rd parties.

crypto			Cryptography stuff (see crypto/README).

etc				Template files for /etc.

gnu				Various commands and libraries under the GNU Public License.  
				Please see gnu/COPYING* for more information.

include			System include files.

kerberos5		Kerberos5 (Heimdal) package.

lib				System libraries.

libexec			System daemons.

release			Release building Makefile & associated tools.

rescue			Build system for statically linked /rescue utilities.

sbin			System commands.

secure			Cryptographic libraries and commands.

share			Shared resources.

sys				Kernel sources.

tests			Regression tests which can be run by Kyua.  See tests/README
				for additional information.

tools			Utilities for regression testing and miscellaneous tasks.

usr.bin			User commands.

usr.sbin		System administration commands.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html