1 ==============================
2 Release Notes for Samba 4.12.8
4 ==============================
7 This is the latest stable release of the Samba 4.12 release series.
13 o Günther Deschner <gd@samba.org>
14 * BUG 14318: docs: Add missing winexe manpage.
16 o Volker Lendecke <vl@samba.org>
17 * BUG 14465: idmap_ad does not deal properly with a RFC4511 section 4.4.1
20 o Laurent Menase <laurent.menase@hpe.com>
21 * BUG 14388: winbind: Fix a memleak.
23 o Stefan Metzmacher <metze@samba.org>
24 * BUG 14465: idmap_ad does not deal properly with a RFC4511 section 4.4.1
26 * BUG 14482: Compilation of heimdal tree fails if libbsd is not installed.
28 o Christof Schmitt <cs@samba.org>
29 * BUG 14166: util: Allow symlinks in directory_create_or_exist.
31 o Andreas Schneider <asn@samba.org>
32 * BUG 14399: waf: Only use gnutls_aead_cipher_encryptv2() for GnuTLS >
34 * BUG 14467: s3:smbd: Fix %U substitutions if it contains a domain name.
36 o Martin Schwenke <martin@meltin.net>
37 * BUG 14466: ctdb disable/enable can fail due to race condition.
40 #######################################
41 Reporting bugs & Development Discussion
42 #######################################
44 Please discuss this release on the samba-technical mailing list or by
45 joining the #samba-technical IRC channel on irc.freenode.net.
47 If you do report problems then please try to send high quality
48 feedback. If you don't provide vital information to help us track down
49 the problem then you will probably be ignored. All bug reports should
50 be filed under the Samba 4.1 and newer product in the project's Bugzilla
51 database (https://bugzilla.samba.org/).
54 ======================================================================
55 == Our Code, Our Bugs, Our Responsibility.
57 ======================================================================
60 Release notes for older releases follow:
61 ----------------------------------------
63 ==============================
64 Release Notes for Samba 4.12.7
66 ==============================
69 This is a security release in order to address the following defect:
71 o CVE-2020-1472: Unauthenticated domain takeover via netlogon ("ZeroLogon").
73 The following applies to Samba used as domain controller only (most
74 seriously the Active Directory DC, but also the classic/NT4-style DC).
76 Installations running Samba as a file server only are not directly
77 affected by this flaw, though they may need configuration changes to
78 continue to talk to domain controllers (see "file servers and domain
81 The netlogon protocol contains a flaw that allows an authentication
82 bypass. This was reported and patched by Microsoft as CVE-2020-1472.
83 Since the bug is a protocol level flaw, and Samba implements the
84 protocol, Samba is also vulnerable.
86 However, since version 4.8 (released in March 2018), the default
87 behaviour of Samba has been to insist on a secure netlogon channel,
88 which is a sufficient fix against the known exploits. This default is
89 equivalent to having 'server schannel = yes' in the smb.conf.
91 Therefore versions 4.8 and above are not vulnerable unless they have
92 the smb.conf lines 'server schannel = no' or 'server schannel = auto'.
94 Samba versions 4.7 and below are vulnerable unless they have 'server
95 schannel = yes' in the smb.conf.
97 Note each domain controller needs the correct settings in its smb.conf.
99 Vendors supporting Samba 4.7 and below are advised to patch their
100 installations and packages to add this line to the [global] section if
103 The 'server schannel = yes' smb.conf line is equivalent to Microsoft's
104 'FullSecureChannelProtection=1' registry key, the introduction of
105 which we understand forms the core of Microsoft's fix.
107 Some domains employ third-party software that will not work with a
108 'server schannel = yes'. For these cases patches are available that
109 allow specific machines to use insecure netlogon. For example, the
112 server schannel = yes
113 server require schannel:triceratops$ = no
114 server require schannel:greywacke$ = no
116 will allow only "triceratops$" and "greywacke$" to avoid schannel.
118 More details can be found here:
119 https://www.samba.org/samba/security/CVE-2020-1472.html
125 o Jeremy Allison <jra@samba.org>
126 * BUG 14497: CVE-2020-1472(ZeroLogon): s3:rpc_server/netlogon: Protect
127 netr_ServerPasswordSet2 against unencrypted passwords.
129 o Günther Deschner <gd@samba.org>
130 * BUG 14497: CVE-2020-1472(ZeroLogon): s3:rpc_server/netlogon: Support
131 "server require schannel:WORKSTATION$ = no" about unsecure configurations.
133 o Gary Lockyer <gary@catalyst.net.nz>
134 * BUG 14497: CVE-2020-1472(ZeroLogon): s4 torture rpc: repeated bytes in
137 o Stefan Metzmacher <metze@samba.org>
138 * BUG 14497: CVE-2020-1472(ZeroLogon): libcli/auth: Reject weak client
139 challenges in netlogon_creds_server_init()
140 "server require schannel:WORKSTATION$ = no".
143 #######################################
144 Reporting bugs & Development Discussion
145 #######################################
147 Please discuss this release on the samba-technical mailing list or by
148 joining the #samba-technical IRC channel on irc.freenode.net.
150 If you do report problems then please try to send high quality
151 feedback. If you don't provide vital information to help us track down
152 the problem then you will probably be ignored. All bug reports should
153 be filed under the Samba 4.1 and newer product in the project's Bugzilla
154 database (https://bugzilla.samba.org/).
157 ======================================================================
158 == Our Code, Our Bugs, Our Responsibility.
160 ======================================================================
163 ----------------------------------------------------------------------
166 ==============================
167 Release Notes for Samba 4.12.6
169 ==============================
172 This is the latest stable release of the Samba 4.12 release series.
178 o Jeremy Allison <jra@samba.org>
179 * BUG 14403: s3: libsmb: Fix SMB2 client rename bug to a Windows server.
181 o Andrew Bartlett <abartlet@samba.org>
182 * BUG 14424: dsdb: Allow "password hash userPassword schemes = CryptSHA256"
184 * BUG 14450: dbcheck: Allow a dangling forward link outside our known NCs.
186 o Ralph Boehme <slow@samba.org>
187 * BUG 14426: lib/debug: Set the correct default backend loglevel to
189 * BUG 14428: PANIC: Assert failed in get_lease_type().
191 o Bjoern Jacke <bjacke@samba.org>
192 * BUG 14422: util: Fix build on AIX by fixing the order of replace.h include.
194 o Volker Lendecke <vl@samba.org>
195 * BUG 14355: srvsvc_NetFileEnum asserts with open files.
197 o Stefan Metzmacher <metze@samba.org>
198 * BUG 14354: KDC breaks with DES keys still in the database and
199 msDS-SupportedEncryptionTypes 31 indicating support for it.
200 * BUG 14427: s3:smbd: Make sure vfs_ChDir() always sets
201 conn->cwd_fsp->fh->fd = AT_FDCWD.
202 * BUG 14428: PANIC: Assert failed in get_lease_type().
204 o Andreas Schneider <asn@samba.org>
205 * BUG 14358: docs: Fix documentation for require_membership_of of
208 o Martin Schwenke <martin@meltin.net>
209 * BUG 14444: ctdb-scripts: Use nfsconf utility for variable values in CTDB
212 o Andrew Walker <awalker@ixsystems.com>
213 * BUG 14425: s3:winbind:idmap_ad: Make failure to get attrnames for schema
217 #######################################
218 Reporting bugs & Development Discussion
219 #######################################
221 Please discuss this release on the samba-technical mailing list or by
222 joining the #samba-technical IRC channel on irc.freenode.net.
224 If you do report problems then please try to send high quality
225 feedback. If you don't provide vital information to help us track down
226 the problem then you will probably be ignored. All bug reports should
227 be filed under the Samba 4.1 and newer product in the project's Bugzilla
228 database (https://bugzilla.samba.org/).
231 ======================================================================
232 == Our Code, Our Bugs, Our Responsibility.
234 ======================================================================
237 ----------------------------------------------------------------------
240 ==============================
241 Release Notes for Samba 4.12.5
243 ==============================
246 This is the latest stable release of the Samba 4.12 release series.
252 o Jeremy Allison <jra@samba.org>
253 * BUG 14301: Fix smbd panic on force-close share during async io.
254 * BUG 14374: Fix segfault when using SMBC_opendir_ctx() routine for share
255 folder that contains incorrect symbols in any file name.
256 * BUG 14391: Fix DFS links.
258 o Andrew Bartlett <abartlet@samba.org>
259 * BUG 14310: Can't use DNS functionality after a Windows DC has been in
262 o Alexander Bokovoy <ab@samba.org>
263 * BUG 14413: ldapi search to FreeIPA crashes.
265 o Isaac Boukris <iboukris@gmail.com>
266 * BUG 14396: Add net-ads-join dnshostname=fqdn option.
267 * BUG 14406: Fix adding msDS-AdditionalDnsHostName to keytab with Windows DC.
269 o Björn Jacke <bj@sernet.de>
270 * BUG 14386: docs-xml: Update list of posible VFS operations for
273 o Volker Lendecke <vl@samba.org>
274 * BUG 14382: winbindd: Fix a use-after-free when winbind clients exit.
276 o Andreas Schneider <asn@samba.org>
277 * BUG 14370: Client tools are not able to read gencache anymore.
280 #######################################
281 Reporting bugs & Development Discussion
282 #######################################
284 Please discuss this release on the samba-technical mailing list or by
285 joining the #samba-technical IRC channel on irc.freenode.net.
287 If you do report problems then please try to send high quality
288 feedback. If you don't provide vital information to help us track down
289 the problem then you will probably be ignored. All bug reports should
290 be filed under the Samba 4.1 and newer product in the project's Bugzilla
291 database (https://bugzilla.samba.org/).
294 ======================================================================
295 == Our Code, Our Bugs, Our Responsibility.
297 ======================================================================
300 ----------------------------------------------------------------------
303 ==============================
304 Release Notes for Samba 4.12.4
306 ==============================
309 This is a security release in order to address the following defects:
311 o CVE-2020-10730: NULL pointer de-reference and use-after-free in Samba AD DC
312 LDAP Server with ASQ, VLV and paged_results.
313 o CVE-2020-10745: Parsing and packing of NBT and DNS packets can consume
315 o CVE-2020-10760: LDAP Use-after-free in Samba AD DC Global Catalog with
316 paged_results and VLV.
317 o CVE-2020-14303: Empty UDP packet DoS in Samba AD DC nbtd.
325 A client combining the 'ASQ' and 'VLV' LDAP controls can cause a NULL pointer
326 de-reference and further combinations with the LDAP paged_results feature can
327 give a use-after-free in Samba's AD DC LDAP server.
329 o CVE-2020-10745: Parsing and packing of NBT and DNS packets can consume
333 The use of the paged_results or VLV controls against the Global Catalog LDAP
334 server on the AD DC will cause a use-after-free.
337 The AD DC NBT server in Samba 4.0 will enter a CPU spin and not process
338 further requests once it receives an empty (zero-length) UDP packet to
341 For more details, please refer to the security advisories.
347 o Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
348 * BUG 14378: CVE-2020-10745: Invalid DNS or NBT queries containing dots use
349 several seconds of CPU each.
351 o Andrew Bartlett <abartlet@samba.org>
352 * BUG 14364: CVE-2020-10730: NULL de-reference in AD DC LDAP server when ASQ
354 * BUG 14402: CVE-2020-10760: Fix use-after-free in AD DC Global Catalog LDAP
355 server with paged_result or VLV.
356 * BUG 14417: CVE-2020-14303: Fix endless loop from empty UDP packet sent to
359 o Gary Lockyer <gary@catalyst.net.nz>
360 * BUG 14364: CVE-2020-10730: NULL de-reference in AD DC LDAP server when ASQ
361 and VLV combined, ldb: Bump version to 2.1.4.
364 #######################################
365 Reporting bugs & Development Discussion
366 #######################################
368 Please discuss this release on the samba-technical mailing list or by
369 joining the #samba-technical IRC channel on irc.freenode.net.
371 If you do report problems then please try to send high quality
372 feedback. If you don't provide vital information to help us track down
373 the problem then you will probably be ignored. All bug reports should
374 be filed under the Samba 4.1 and newer product in the project's Bugzilla
375 database (https://bugzilla.samba.org/).
378 ======================================================================
379 == Our Code, Our Bugs, Our Responsibility.
381 ======================================================================
384 ----------------------------------------------------------------------
387 ==============================
388 Release Notes for Samba 4.12.3
390 ==============================
393 This is the latest stable release of the Samba 4.12 release series.
399 o Jeremy Allison <jra@samba.org>
400 * BUG 14301: Fix smbd panic on force-close share during async io.
401 * BUG 14343: s3: vfs_full_audit: Add missing fcntl entry in vfs_op_names[]
403 * BUG 14361: vfs_io_uring: Fix data corruption with Windows clients.
404 * BUG 14372: Fix smbd crashes when MacOS Catalina connects if iconv
405 initialization fails.
407 o Ralph Boehme <slow@samba.org>
408 * BUG 14150: Exporting from macOS Adobe Illustrator creates multiple copies.
409 * BUG 14256: smbd does a chdir() twice per request.
410 * BUG 14320: smbd mistakenly updates a file's write-time on close.
411 * BUG 14350: vfs_shadow_copy2: implement case canonicalisation in
412 shadow_copy2_get_real_filename().
413 * BUG 14375: Fix Windows 7 clients problem after upgrading samba file server.
415 o Alexander Bokovoy <ab@samba.org>
416 * BUG 14359: s3: Pass DCE RPC handle type to create_policy_hnd.
418 o Isaac Boukris <iboukris@gmail.com>
419 * BUG 14155: Fix uxsuccess test with new MIT krb5 library 1.18.
420 * BUG 14342: mit-kdc: Explicitly reject S4U requests.
422 o Anoop C S <anoopcs@redhat.com>
423 * BUG 14352: dbwrap_watch: Set rec->value_valid while returning nested
424 share_mode_do_locked().
426 o Amit Kumar <amitkuma@redhat.com>
427 * BUG 14345: lib:util: Fix smbclient -l basename dir.
429 o Volker Lendecke <vl@samba.org>
430 * BUG 14336: s3:libads: Fix ads_get_upn().
431 * BUG 14348: ctdb: Fix a memleak.
432 * BUG 14366: Malicous SMB1 server can crash libsmbclient.
434 o Gary Lockyer <gary@catalyst.net.nz>
435 * BUG 14330: ldb: Bump version to 2.1.3, LMDB databases can grow without
438 o Stefan Metzmacher <metze@samba.org>
439 * BUG 14361: vfs_io_uring: Fix data corruption with Windows clients.
441 o Noel Power <noel.power@suse.com>
442 * BUG 14344: s3/librpc/crypto: Fix double free with unresolved credential
445 o Andreas Schneider <asn@samba.org>
446 * BUG 14358: docs-xml: Fix usernames in pam_winbind manpages.
449 #######################################
450 Reporting bugs & Development Discussion
451 #######################################
453 Please discuss this release on the samba-technical mailing list or by
454 joining the #samba-technical IRC channel on irc.freenode.net.
456 If you do report problems then please try to send high quality
457 feedback. If you don't provide vital information to help us track down
458 the problem then you will probably be ignored. All bug reports should
459 be filed under the Samba 4.1 and newer product in the project's Bugzilla
460 database (https://bugzilla.samba.org/).
463 ======================================================================
464 == Our Code, Our Bugs, Our Responsibility.
466 ======================================================================
469 ----------------------------------------------------------------------
472 ==============================
473 Release Notes for Samba 4.12.2
475 ==============================
478 This is a security release in order to address the following defects:
480 o CVE-2020-10700: Use-after-free in Samba AD DC LDAP Server with ASQ
481 o CVE-2020-10704: LDAP Denial of Service (stack overflow) in Samba AD DC
489 A client combining the 'ASQ' and 'Paged Results' LDAP controls can cause a
490 use-after-free in Samba's AD DC LDAP server.
492 A deeply nested filter in an un-authenticated LDAP search can exhaust the
493 LDAP server's stack memory causing a SIGSEGV.
495 For more details, please refer to the security advisories.
501 o Andrew Bartlett <abartlet@samba.org>
502 * BUG 14331: CVE-2020-10700: Fix use-after-free in AD DC LDAP server when
503 ASQ and paged_results combined.
505 o Gary Lockyer <gary@catalyst.net.nz>
506 * BUG 20454: CVE-2020-10704: Fix LDAP Denial of Service (stack overflow) in
510 #######################################
511 Reporting bugs & Development Discussion
512 #######################################
514 Please discuss this release on the samba-technical mailing list or by
515 joining the #samba-technical IRC channel on irc.freenode.net.
517 If you do report problems then please try to send high quality
518 feedback. If you don't provide vital information to help us track down
519 the problem then you will probably be ignored. All bug reports should
520 be filed under the Samba 4.1 and newer product in the project's Bugzilla
521 database (https://bugzilla.samba.org/).
524 ======================================================================
525 == Our Code, Our Bugs, Our Responsibility.
527 ======================================================================
530 ----------------------------------------------------------------------
533 ==============================
534 Release Notes for Samba 4.12.1
536 ==============================
539 This is the latest stable release of the Samba 4.12 release series.
545 o Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
546 * BUG 14295: nmblib: Avoid undefined behaviour in handle_name_ptrs().
548 o Björn Baumbach <bb@sernet.de>
549 * BUG 14296: samba-tool group: Handle group names with special chars
552 o Ralph Boehme <slow@samba.org>
553 * BUG 14293: Add missing check for DMAPI offline status in async DOS
555 * BUG 14295: Starting ctdb node that was powered off hard before results in
557 * BUG 14307: smbd: Ignore set NTACL requests which contain S-1-5-88 NFS ACEs.
558 * BUG 14316: vfs_recycle: Prevent flooding the log if we're called on
561 o Günther Deschner <gd@samba.org>
562 * BUG 14313: librpc: Fix IDL for svcctl_ChangeServiceConfigW.
563 * BUG 14327: nsswitch: Fix use-after-free causing segfault in
566 o Art M. Gallagher <repos@artmg.net>
567 * BUG 13622: fruit:time machine max size is broken on arm.
569 o Amitay Isaacs <amitay@gmail.com>
570 * BUG 14294: CTDB recovery corner cases can cause record resurrection and
573 o Noel Power <noel.power@suse.com>
574 * BUG 14332: s3/utils: Fix double free error with smbtree.
576 o Martin Schwenke <martin@meltin.net>
577 * BUG 14294: CTDB recovery corner cases can cause record resurrection and
579 * BUG 14295: Starting ctdb node that was powered off hard before results in
581 * BUG 14324: CTDB recovery daemon can crash due to dereference of NULL
585 #######################################
586 Reporting bugs & Development Discussion
587 #######################################
589 Please discuss this release on the samba-technical mailing list or by
590 joining the #samba-technical IRC channel on irc.freenode.net.
592 If you do report problems then please try to send high quality
593 feedback. If you don't provide vital information to help us track down
594 the problem then you will probably be ignored. All bug reports should
595 be filed under the Samba 4.1 and newer product in the project's Bugzilla
596 database (https://bugzilla.samba.org/).
599 ======================================================================
600 == Our Code, Our Bugs, Our Responsibility.
602 ======================================================================
605 ----------------------------------------------------------------------
608 ==============================
609 Release Notes for Samba 4.12.0
611 ==============================
614 This is the first stable release of the Samba 4.12 release series.
615 Please read the release notes carefully before upgrading.
624 Samba's minimum runtime requirement for python was raised to Python
625 3.4 with samba 4.11. Samba 4.12 raises this minimum version to Python
626 3.5 both to access new features and because this is the oldest version
627 we test with in our CI infrastructure.
629 (Build time support for the file server with Python 2.6 has not
632 Removing in-tree cryptography: GnuTLS 3.4.7 required
633 ----------------------------------------------------
635 Samba is making efforts to remove in-tree cryptographic functionality,
636 and to instead rely on externally maintained libraries. To this end,
637 Samba has chosen GnuTLS as our standard cryptographic provider.
639 Samba now requires GnuTLS 3.4.7 to be installed (including development
640 headers at build time) for all configurations, not just the Samba AD
643 Thanks to this work Samba no longer ships an in-tree DES
644 implementation and on GnuTLS 3.6.5 or later Samba will include no
645 in-tree cryptography other than the MD4 hash and that
646 implemented in our copy of Heimdal.
648 Using GnuTLS for SMB3 encryption you will notice huge performance and copy
649 speed improvements. Tests with the CIFS Kernel client from Linux Kernel 5.3
650 show a 3x speed improvement for writing and a 2.5x speed improvement for reads!
652 NOTE WELL: The use of GnuTLS means that Samba will honour the
653 system-wide 'FIPS mode' (a reference to the US FIPS-140 cryptographic
654 standard) and so will not operate in many still common situations if
655 this system-wide parameter is in effect, as many of our protocols rely
656 on outdated cryptography.
658 A future Samba version will mitigate this to some extent where good
659 cryptography effectively wraps bad cryptography, but for now that above
662 zlib library is now required to build Samba
663 -------------------------------------------
665 Samba no longer includes a local copy of zlib in our source tarball.
666 By removing this we do not need to ship (even where we did not
667 build) the old, broken zip encryption code found there.
669 New Spotlight backend for Elasticsearch
670 ---------------------------------------
672 Support for the macOS specific Spotlight search protocol has been enhanced
673 significantly. Starting with 4.12 Samba supports using Elasticsearch as search
674 backend. Various new parameters have been added to configure this:
676 spotlight backend = noindex | elasticsearch | tracker
677 elasticsearch:address = ADDRESS
678 elasticsearch:port = PORT
679 elasticsearch:use tls = BOOLEAN
680 elasticsearch:index = INDEXNAME
681 elasticsearch:mappings = PATH
682 elasticsearch:max results = NUMBER
684 Samba also ships a Spotlight client command "mdfind" which can be used to search
685 any SMB server that runs the Spotlight RPC service. See the manpage of mdfind
688 Note that when upgrading existing installations that are using the previous
689 default Spotlight backend Gnome Tracker must explicitly set "spotlight backend =
690 tracker" as the new default is "noindex".
692 'net ads kerberos pac save' and 'net eventlog export'
693 -----------------------------------------------------
695 The 'net ads kerberos pac save' and 'net eventlog export' tools will
696 no longer silently overwrite an existing file during data export. If
697 the filename given exits, an error will be shown.
702 A large number of fuzz targets have been added to Samba, and Samba has
703 been registered in Google's oss-fuzz cloud fuzzing service. In
704 particular, we now have good fuzzing coverage of our generated NDR
707 A large number of issues have been found and fixed thanks to this
710 'samba-tool' improvements add contacts as member to groups
711 ----------------------------------------------------------
713 Previously 'samba-tool group addmemers' can just add users, groups and
714 computers as members to groups. But also contacts can be members of
715 groups. Samba 4.12 adds the functionality to add contacts to
716 groups. Since contacts have no sAMAccountName, it's possible that
717 there are more than one contact with the same name in different
718 organizational units. Therefore it's necessary to have an option to
719 handle group members by their DN.
721 To get the DN of an object there is now the "--full-dn" option available
722 for all necessary commands.
724 The MS Windows UI allows to search for specific types of group members
725 when searching for new members for a group. This feature is included
726 here with the new samba-tool group addmembers "--object-type=OBJECTYPE"
727 option. The different types are selected accordingly to the Windows
728 UI. The default samba-toole behaviour shouldn't be changed.
730 Allow filtering by OU or subtree in samba-tool
731 ----------------------------------------------
733 A new "--base-dn" and "--member-base-dn" option is added to relevant
734 samba-tool user, group and ou management commands to allow operation
735 on just one part of the AD tree, such as a single OU.
743 Samba now uses a sentinel value based on utimensat(2) UTIME_OMIT to denote
744 to-be-ignored timestamp variables passed to the SMB_VFS_NTIMES() VFS function.
746 VFS modules can check whether any of the time values inside a struct
747 smb_file_time is to be ignored by calling is_omit_timespec() on the value.
749 'io_uring' vfs module
750 ---------------------
752 The module makes use of the new io_uring infrastructure
753 (intruduced in Linux 5.1), see https://lwn.net/Articles/776703/
755 Currently this implements SMB_VFS_{PREAD,PWRITE,FSYNC}_SEND/RECV
756 and avoids the overhead of the userspace threadpool in the default
757 vfs backend. See also vfs_io_uring(8).
759 In order to build the module you need the liburing userspace library
760 and its developement headers installed, see
761 https://git.kernel.dk/cgit/liburing/
763 At runtime you'll need a Linux kernel with version 5.1 or higher.
764 Note that 5.4.14 and 5.4.15 have a regression that breaks the Samba
765 module! The regression was fixed in Linux 5.4.16 again.
767 MS-DFS changes in the VFS
768 -------------------------
770 This release changes set getting and setting of MS-DFS redirects
771 on the filesystem to go through two new VFS functions:
773 SMB_VFS_CREATE_DFS_PATHAT()
774 SMB_VFS_READ_DFS_PATHAT()
776 instead of smbd explicitly storing MS-DFS redirects inside
777 symbolic links on the filesystem. The underlying default
778 implementations of this has not changed, the redirects are
779 still stored inside symbolic links on the filesystem, but
780 moving the creation and reading of these links into the VFS
781 as first-class functions now allows alternate methods of
782 storing them (maybe in extended attributes) for OEMs who
783 don't want to mis-use filesystem symbolic links in this
790 * The ctdb_mutex_fcntl_helper periodically re-checks the lock file
792 The re-check period is specified using a 2nd argument to this
793 helper. The default re-check period is 5s.
795 If the file no longer exists or the inode number changes then the
796 helper exits. This triggers an election.
802 The smb.conf parameter "write cache size" has been removed.
804 Since the in-memory write caching code was written, our write path has
805 changed significantly. In particular we have gained very flexible
806 support for async I/O, with the new linux io_uring interface in
807 development. The old write cache concept which cached data in main
808 memory followed by a blocking pwrite no longer gives any improvement
809 on modern systems, and may make performance worse on memory-contrained
810 systems, so this functionality should not be enabled in core smbd
813 In addition, it complicated the write code, which is a performance
816 If required for specialist purposes, it can be recreated as a VFS
819 Retiring DES encryption types in Kerberos.
820 ------------------------------------------
821 With this release, support for DES encryption types has been removed from
822 Samba, and setting DES_ONLY flag for an account will cause Kerberos
823 authentication to fail for that account (see RFC-6649).
825 Samba-DC: DES keys no longer saved in DB.
826 -----------------------------------------
827 When a new password is set for an account, Samba DC will store random keys
828 in DB instead of DES keys derived from the password. If the account is being
829 migrated to Windbows or to an older version of Samba in order to use DES keys,
830 the password must be reset to make it work.
832 Heimdal-DC: removal of weak-crypto.
833 -----------------------------------
834 Following removal of DES encryption types from Samba, the embedded Heimdal
835 build has been updated to not compile weak crypto code (HEIM_WEAK_CRYPTO).
837 vfs_netatalk: The netatalk VFS module has been removed.
838 -------------------------------------------------------
840 The netatalk VFS module has been removed. It was unmaintained and is not needed
843 BIND9_FLATFILE deprecated
844 -------------------------
846 The BIND9_FLATFILE DNS backend is deprecated in this release and will
847 be removed in the future. This was only practically useful on a single
848 domain controller or under expert care and supervision.
850 This release removes the 'rndc command' smb.conf parameter, which
851 supported this configuration by writing out a list of DCs permitted to
852 make changes to the DNS Zone and nudging the 'named' server if a new
853 DC was added to the domain. Administrators using BIND9_FLATFILE will
854 need to maintain this manually from now on.
860 Parameter Name Description Default
861 -------------- ----------- -------
863 elasticsearch:address New localhost
864 elasticsearch:port New 9200
865 elasticsearch:use tls New No
866 elasticsearch:index New _all
867 elasticsearch:mappings New DATADIR/elasticsearch_mappings.json
868 elasticsearch:max results New 100
869 nfs4:acedup Changed default merge
871 write cache size Removed
872 spotlight backend New noindex
875 CHANGES SINCE 4.12.0rc4
876 =======================
878 o Andrew Bartlett <abartlet@samba.org>
879 * BUG 14258: dsdb: Correctly handle memory in objectclass_attrs.
882 CHANGES SINCE 4.12.0rc3
883 =======================
885 o Jeremy Allison <jra@samba.org>
886 * BUG 14269: s3: DFS: Don't allow link deletion on a read-only share.
888 o Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
889 * BUG 14284: pidl/wscript: configure should insist on Parse::Yapp::Driver.
891 o Andrew Bartlett <abartlet@samba.org>
892 * BUG 14270: ldb: Fix search with scope ONE and small result sets.
893 * BUG 14284: build: Do not check if system perl modules should be bundled.
895 o Volker Lendecke <vl@samba.org>
896 * BUG 14285: smbd fails to handle EINTR from open(2) properly.
898 o Stefan Metzmacher <metze@samba.org>
899 * BUG 14270: ldb: version 2.1.1.
902 CHANGES SINCE 4.12.0rc2
903 =======================
905 o Jeremy Allison <jra@samba.org>
906 * BUG 14282: Set getting and setting of MS-DFS redirects on the filesystem
907 to go through two new VFS functions SMB_VFS_CREATE_DFS_PATHAT() and
908 SMB_VFS_READ_DFS_PATHAT().
910 o Andrew Bartlett <abartlet@samba.org>
911 * BUG 14255: bootstrap: Remove un-used dependency python3-crypto.
913 o Volker Lendecke <vl@samba.org>
914 * BUG 14247: Fix CID 1458418 and 1458420.
915 * BUG 14281: lib: Fix a shutdown crash with "clustering = yes".
917 o Stefan Metzmacher <metze@samba.org>
918 * BUG 14247: Winbind member (source3) fails local SAM auth with empty domain
920 * BUG 14265: winbindd: Handle missing idmap in getgrgid().
921 * BUG 14271: Don't use forward declaration for GnuTLS typedefs.
922 * BUG 14280: Add io_uring vfs module.
924 o Andreas Schneider <asn@samba.org>
925 * BUG 14250: libcli:smb: Improve check for gnutls_aead_cipher_(en|de)cryptv2.
928 CHANGES SINCE 4.12.0rc1
929 =======================
931 o Jeremy Allison <jra@samba.org>
932 * BUG 14239: s3: lib: nmblib. Clean up and harden nmb packet processing.
934 o Andreas Schneider <asn@samba.org>
935 * BUG 14253: lib:util: Log mkdir error on correct debug levels.
941 https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.12#Release_blocking_bugs
944 #######################################
945 Reporting bugs & Development Discussion
946 #######################################
948 Please discuss this release on the samba-technical mailing list or by
949 joining the #samba-technical IRC channel on irc.freenode.net.
951 If you do report problems then please try to send high quality
952 feedback. If you don't provide vital information to help us track down
953 the problem then you will probably be ignored. All bug reports should
954 be filed under the Samba 4.1 and newer product in the project's Bugzilla
955 database (https://bugzilla.samba.org/).
958 ======================================================================
959 == Our Code, Our Bugs, Our Responsibility.
961 ======================================================================