Samba 4.2 Features added/changed: Difference between revisions

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Samba 4.2 is in the [[Samba_Release_Planning#Maintenance_Mode|'''Maintenance Mode''']].
Samba 4.2 is in the [[Samba_Release_Planning#Maintenance_Mode|'''Maintenance Mode''']].
==Samba 4.2.5==
:Release Notes for Samba 4.2.5
:October 27, 2015

===This is the latest stable release of Samba 4.2.===

===Changes since 4.2.4:===
* Jeremy Allison <jra@samba.org>
* [https://bugzilla.samba.org/show_bug.cgi?id=10252 BUG #10252]: s3: smbd: Fix our access-based enumeration on "hide unreadable" to match Windows.
:* [https://bugzilla.samba.org/show_bug.cgi?id=10634 BUG #10634]: smbd: Fix file name buflen and padding in notify repsonse.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11486 BUG #11486]: s3: smbd: Fix mkdir race condition.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11522 BUG #11522]: s3: smbd: Fix opening/creating :stream files on the root share directory.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11535 BUG #11535]: s3: smbd: Fix NULL pointer bug introduced by previous 'raw' stream fix (bug #11522).
:* [https://bugzilla.samba.org/show_bug.cgi?id=11555 BUG #11555]: s3: lsa: lookup_name() logic for unqualified (no DOMAIN\ component) names is incorrect.
* Ralph Boehme <slow@samba.org>
:* [https://bugzilla.samba.org/show_bug.cgi?id=11535 BUG #11535]: s3: smbd: Fix a crash in unix_convert().
:* [https://bugzilla.samba.org/show_bug.cgi?id=11543 BUG #11543]: vfs_fruit: Return value of ad_pack in vfs_fruit.c.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11549 BUG #11549]: Fix bug in smbstatus where the lease info is not printed.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11550 BUG #11550]: s3:smbstatus: Add stream name to share_entry_forall().
:* [https://bugzilla.samba.org/show_bug.cgi?id=11555 BUG #11555]: s3:lib: validate domain name in lookup_wellknown_name().
* Günther Deschner <gd@samba.org>
:* [https://bugzilla.samba.org/show_bug.cgi?id=11038 BUG #11038]: kerberos: Make sure we only use prompter type when available.
* Björn Jacke <bj@sernet.de>
:* [https://bugzilla.samba.org/show_bug.cgi?id=10365 BUG #10365]: nss_winbind: Fix hang on Solaris on big groups.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11355 BUG #11355]: build: Use as-needed linker flag also on OpenBSD.
* Volker Lendecke <vl@samba.org>
:* [https://bugzilla.samba.org/show_bug.cgi?id=11038 BUG #11038]: winbind: Fix 100% loop.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11381 BUG #11381]: Fix a deadlock in tdb.
* Stefan Metzmacher <metze@samba.org>
:* [https://bugzilla.samba.org/show_bug.cgi?id=11316 BUG #11316]: s3:ctdbd_conn: Make sure we destroy tevent_fd before closing the socket.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11327 BUG #11327]: dcerpc.idl: accept invalid dcerpc_bind_nak pdus.
* Har Gagan Sahai <SHarGagan@novell.com>
:* [https://bugzilla.samba.org/show_bug.cgi?id=11509 BUG #11509]: s3: dfs: Fix a crash when the dfs targets are disabled.
* Andreas Schneider <asn@samba.org>
:* [https://bugzilla.samba.org/show_bug.cgi?id=11502 BUG #11502]: pam_winbind: Fix a segfault if initialization fails.
* Uri Simchoni <uri@samba.org>
:* [https://bugzilla.samba.org/show_bug.cgi?id=11528 BUG #11528]: net: Fix a crash with 'net ads keytab create'.
:* [https://bugzilla.samba.org/show_bug.cgi?id=11547 BUG #11547]: vfs_commit: Set the fd on open before calling SMB_VFS_FSTAT.

https://www.samba.org/samba/history/samba-4.2.5.html

==Samba 4.2.4==
==Samba 4.2.4==
:Release Notes for Samba 4.2.4
:Release Notes for Samba 4.2.4

Revision as of 20:50, 28 October 2015

Samba 4.2 is in the Maintenance Mode.

Samba 4.2.5

Release Notes for Samba 4.2.5
October 27, 2015

This is the latest stable release of Samba 4.2.

Changes since 4.2.4:

  • Jeremy Allison <jra@samba.org>
* BUG #10252: s3: smbd: Fix our access-based enumeration on "hide unreadable"  to match Windows.
  • BUG #10634: smbd: Fix file name buflen and padding in notify repsonse.
  • BUG #11486: s3: smbd: Fix mkdir race condition.
  • BUG #11522: s3: smbd: Fix opening/creating :stream files on the root share directory.
  • BUG #11535: s3: smbd: Fix NULL pointer bug introduced by previous 'raw' stream fix (bug #11522).
  • BUG #11555: s3: lsa: lookup_name() logic for unqualified (no DOMAIN\ component) names is incorrect.
  • Ralph Boehme <slow@samba.org>
  • BUG #11535: s3: smbd: Fix a crash in unix_convert().
  • BUG #11543: vfs_fruit: Return value of ad_pack in vfs_fruit.c.
  • BUG #11549: Fix bug in smbstatus where the lease info is not printed.
  • BUG #11550: s3:smbstatus: Add stream name to share_entry_forall().
  • BUG #11555: s3:lib: validate domain name in lookup_wellknown_name().
  • Günther Deschner <gd@samba.org>
  • BUG #11038: kerberos: Make sure we only use prompter type when available.
  • Björn Jacke <bj@sernet.de>
  • BUG #10365: nss_winbind: Fix hang on Solaris on big groups.
  • BUG #11355: build: Use as-needed linker flag also on OpenBSD.
  • Volker Lendecke <vl@samba.org>
  • Stefan Metzmacher <metze@samba.org>
  • BUG #11316: s3:ctdbd_conn: Make sure we destroy tevent_fd before closing the socket.
  • BUG #11327: dcerpc.idl: accept invalid dcerpc_bind_nak pdus.
  • Har Gagan Sahai <SHarGagan@novell.com>
  • BUG #11509: s3: dfs: Fix a crash when the dfs targets are disabled.
  • Andreas Schneider <asn@samba.org>
  • BUG #11502: pam_winbind: Fix a segfault if initialization fails.
  • Uri Simchoni <uri@samba.org>
  • BUG #11528: net: Fix a crash with 'net ads keytab create'.
  • BUG #11547: vfs_commit: Set the fd on open before calling SMB_VFS_FSTAT.
https://www.samba.org/samba/history/samba-4.2.5.html

Samba 4.2.4

Release Notes for Samba 4.2.4
September 8, 2015

This is the latest stable release of Samba 4.2.

Changes since 4.2.3:

  • Michael Adam <obnox@samba.org>
  • BUG #11372: smbd: Fix SMB3 functionality of "smb encrypt".
  • Jeremy Allison <jra@samba.org>
  • BUG #11359: lib: replace: Add strsep function (missing on Solaris).
  • Ralph Boehme <slow@samba.org>
  • BUG #11278: Fix stream names with colon with "fruit:encoding = native".
  • BUG #11317: vfs:fruit: Implement copyfile style copy_chunk.
  • BUG #11426: s3-net: Use talloc array in share allowedusers.
  • BUG #11467: vfs_fruit: Handling of empty resource fork.
  • Alexander Bokovoy <ab@samba.org>
  • BUG #11265: auth/credentials: If credentials have principal set, they are not anonymous anymore.
  • Günther Deschner <gd@samba.org>
  • BUG #11373: s3-smbd: Reset protocol in smbXsrv_connection_init_tables failure paths.
  • Amitay Isaacs <amitay@gmail.com>
  • BUG #11398: ctdb-daemon: Return correct sequence number for CONTROL_GET_DB_SEQNUM.
  • BUG #11431: ctdb-daemon: Improve error handling for running event scripts.
  • Volker Lendecke <vl@samba.org>
  • BUG #11316: lib: Fix rundown of open_socket_out().
  • BUG #11488: Avoid quoting problems in user's DNs.
  • Justin Maggard <jmaggard@netgear.com>
  • BUG #11320: s3-passdb: Respect LOOKUP_NAME_GROUP flag in sid lookup.
  • Roel van Meer <roel@1afa.com>
  • BUG #11427: s3-util: Compare the maximum allowed length of a NetBIOS name.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #11316: s3:lib: Fix some corner cases of open_socket_out_cleanup().
  • BUG #11454: Backport dcesrv_netr_DsRGetDCNameEx2 fixes.
  • Anubhav Rakshit <anubhav.rakshit@gmail.com>
  • BUG #11361: s3:libsmb: Fix a bug in conversion of ea list to ea array.
  • Arvid Requate <requate@univention.de>
  • BUG #11291: s4:rpc_server/netlogon: Fix for NetApp.
  • Andreas Schneider <asn@samba.org>
  • BUG #9862: s3-auth: Fix "map to guest = Bad uid".
  • BUG #11403: s3-smbd: Leave sys_disk_free() if dfree command is used.
  • BUG #11404: s3-auth: Fix a possible null pointer dereference.
  • Martin Schwenke <martin@meltin.net>
  • BUG #11399: ctdb-scripts: Support monitoring of interestingly named VLANs on bonds.
  • BUG #11432: ctdb-daemon: Check if updates are in flight when releasing all IPs.
  • BUG #11435: ctdb-build: Fix building of PCP PMDA module.
  • Wei Zhong <wweyeww@gmail.com>
  • BUG #10823: s3: winbindd: Fix TALLOC_FREE of uninitialized groups variable.
https://www.samba.org/samba/history/samba-4.2.4.html

Samba 4.2.3

Release Notes for Samba 4.2.3
July 14, 2015

This is the latest stable release of Samba 4.2.

Changes since 4.2.2:

  • Michael Adam <obnox@samba.org>
  • BUG #11366: docs: Overhaul the description of "smb encrypt" to include SMB encryption.

o Jeremy Allison <jra@samba.org>

  • BUG #11068: s3: lib: util: Ensure we read a hex number as %x, not %u.
  • BUG #11295: Excessive cli_resolve_path() usage can slow down transmission.
  • BUG #11328: winbindd: winbindd_raw_kerberos_login - ensure logon_info exists in PAC.
  • BUG #11339: s3: smbd: Use separate flag to track become_root()/unbecome_root() state.
  • BUG #11342: s3: smbd: Codenomicon crash in do_smb_load_module().
  • Christian Ambach <ambi@samba.org>
  • BUG #11170: s3:param/loadparm: Fix 'testparm --show-all-parameters'.
  • Andrew Bartlett <abartlet@samba.org>
  • BUG #10991BUG 10991: winbindd: Sync secrets.ldb into secrets.tdb on startup.
  • Ralph Boehme <slow@samba.org>
  • BUG #11277BUG 11277: s3:smb2: Add padding to last command in compound requests.
  • BUG #11305BUG 11305: vfs_fruit: Add option "veto_appledouble".
  • BUG #11323BUG 11323: smbd/trans2: Add a useful diagnostic for files with bad encoding.
  • BUG #11363BUG 11363: vfs_fruit: Check offset and length for AFP_AfpInfo read requests.
  • BUG #11371BUG 11371: ncacn_http: Fix GNUism.
  • Günther Deschner <gd@samba.org>
  • BUG #11245BUG 11245: s3-rpc_server: Fix rpc_create_tcpip_sockets() processing of interfaces.
  • Alexander Drozdov <al.drozdov@gmail.com>
  • BUG #11331BUG 11331: tdb: version 1.3.5: ABI change: tdb_chainlock_read_nonblock() has been added.
  • Evangelos Foutras <evangelos@foutrelis.com>
  • BUG #8780BUG 8780: s4:lib/tls: Fix build with gnutls 3.4.
  • David Holder <david.holder@erion.co.uk>
  • BUG #11281BUG 11281: Add IPv6 support to ADS client side LDAP connects.
  • BUG #11282BUG 11282: Add IPv6 support for determining FQDN during ADS join.
  • BUG #11283BUG 11283: s3: IPv6 enabled DNS connections for ADS client.
  • Steve Howells <steve.howells@moscowfirst.com>
  • BUG #10924BUG 10924: s4.2/fsmo.py: Fixed fsmo transfer exception.
  • Amitay Isaacs <amitay@gmail.com>
  • BUG #11293: Fix invalid write in ctdb_lock_context_destructor.
  • Volker Lendecke <vl@samba.org>
  • BUG #11218: smbd: Fix a use-after-free.
  • BUG #11312: tstream: Make socketpair nonblocking.
  • BUG #11330: tevent: Fix CID 1035381 Unchecked return value.
  • BUG #11331: tdb: Fix CID 1034842 and 1034841 Resource leaks.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #11061: Logon via MS Remote Desktop hangs.
  • BUG #11141: tevent: Add a note to tevent_add_fd().
  • BUG #11293: Fix invalid write in ctdb_lock_context_destructor.
  • BUG #11316: tevent_fd needs to be destroyed before closing the fd.
  • BUG #11319: Build fails on Solaris 11 with "‘PTHREAD_MUTEX_ROBUST’ undeclared".
  • BUG #11326: Robust mutex support broken in 1.3.5.
  • BUG #11329: s3:smb2_setinfo: Fix memory leak in the defer_rename case.
  • BUG #11330: Backport tevent-0.9.25.
  • BUG #11331: Backport tdb-1.3.6.
  • BUG #11367: s3:auth_domain: Fix talloc problem in connect_to_domain_password_server().
  • Marc Muehlfeld <mmuehlfeld@samba.org>
  • BUG #11315: Group creation: Add msSFU30Name only when --nis-domain was given.
  • Matthieu Patou <mat@matws.net>
  • BUG #11356: pidl: Make the compilation of PIDL producing the same results if the content hasn't change.
  • Noel Power <noel.power@suse.com>
  • BUG #11328: Kerberos auth info3 should contain resource group ids available from pac_logon.
  • Gordon Ross <gordon.w.ross@gmail.com>
  • BUG #11330: lib: tevent: Fix compile error in Solaris ports backend.
  • Christof Schmitt <cs@samba.org>
  • BUG #11313: idmap_rfc2307: Fix wbinfo '--gid-to-sid' query.
  • BUG #11324: Change sharesec output back to previous format.
  • Uri Simchoni <urisimchoni@gmail.com>
  • BUG #11358: winbindd: Disconnect child process if request is cancelled at main process.
  • Petr Viktorin <pviktori@redhat.com>
  • Youzhong Yang <yyang@mathworks.com>
  • BUG #11217: s3-unix_msg: Remove socket file after closing socket fd.
https://www.samba.org/samba/history/samba-4.2.3.html

Samba 4.2.2

Release Notes for Samba 4.2.2
May 27, 2015

This is the latest stable release of Samba 4.2.

Changes since 4.2.1:

  • Michael Adam <obnox@samba.org>
  • BUG #11182: s3:smbXsrv: refactor duplicate code into smbXsrv_session_clear_and_logoff().
  • BUG #11260: gencache: don't fail gencache_stabilize if there were records to delete.
  • Jeremy Allison <jra@samba.org>
  • BUG #11186: s3: libsmbclient: After getting attribute server, ensure main srv pointer is still valid.
  • BUG #11236: s4: rpc: Refactor dcesrv_alter() function into setup and send steps.
  • BUG #11240: s3: smbd: Incorrect file size returned in the response of "FILE_SUPERSEDE Create".
  • BUG #11249: Mangled names do not work with acl_xattr.
  • BUG #11254: nmbd rewrites browse.dat when not required.
  • Ralph Boehme <slow@samba.org>
  • BUG #11213: vfs_fruit: add option "nfs_aces" that controls the NFS ACEs stuff.
  • BUG #11224: s3:smbd: Add missing tevent_req_nterror.
  • BUG #11243: vfs: kernel_flock and named streams.
  • BUG #11244: vfs_gpfs: Error code path doesn't call END_PROFILE.
  • Alexander Bokovoy <ab@samba.org>
  • BUG #11284: s4: libcli/finddcs_cldap: continue processing CLDAP until all addresses are used.
  • David Disseldorp <ddiss@samba.org>
  • BUG #11201: ctdb: check for talloc_asprintf() failure.:w
  • BUG #11210: spoolss: purge the printer name cache on name change.
  • Amitay Isaacs <amitay@gmail.com>
  • Björn Jacke <bj@sernet.de>
  • BUG #11221: vfs_fruit: also map characters below 0x20.
  • Rajesh Joseph <rjoseph@redhat.com>
  • Julien Kerihuel <j.kerihuel@openchange.org>
  • BUG #11225: Multiplexed RPC connections are not handled by DCERPC server.
  • BUG #11226: Fix terminate connection behavior for asynchronous endpoint with PUSH notification flavors.
  • Led <ledest@gmail.com>
  • BUG #11007: ctdb-scripts: Fix bashism in ctdbd_wrapper script.
  • Volker Lendecke <vl@samba.org>
  • BUG #11201: ctdb: Fix CIDs 1125615, 1125634, 1125613, 1288201 and 1125553.
  • BUG #11257: SMB2 should cancel pending NOTIFY calls with DELETE_PENDING if the directory is deleted.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #11141: s3:winbindd: make sure we remove pending io requests before closing client sockets.
  • BUG #11182: Fix panic triggered by smbd_smb2_request_notify_done() -> smbXsrv_session_find_channel() in smbd.
  • Christof Schmitt <cs@samba.org>
  • BUG #11237: 'sharesec' output no longer matches input format.
  • Andreas Schneider <asn@samba.org>
  • Martin Schwenke <martin@meltin.net>
  • Richard Sharpe <rsharpe@nutanix.com>
  • BUG #11234: 'net ads dns gethostbyname' crashes with an error in TALLOC_FREE if you enter invalid values.
  • Uri Simchoni <urisimchoni@gmail.com>
  • BUG #11267: libads: record service ticket endtime for sealed ldap connections.
  • Lukas Slebodnik <lslebodn@redhat.com>
  • BUG #11033: lib/util: Include DEBUG macro in internal header files before samba_util.h.
https://www.samba.org/samba/history/samba-4.2.2.html

Samba 4.2.1

Release Notes for Samba 4.2.1
April 15, 2015

This is the latest stable release of Samba 4.2.

Changes since 4.2.0:

  • Michael Adam <obnox@samba.org>
  • BUG #8905: s3:winbind:grent: Don't stop group enumeration when a group has no gid.
  • BUG #10476: build:wafadmin: Fix use of spaces instead of tabs.
  • BUG #11143: s3-winbind: Fix cached user group lookup of trusted domains.
  • Jeremy Allison <jra@samba.org>
  • BUG #10016: s3: lib: ntlmssp: If NTLMSSP_NEGOTIATE_TARGET_INFO isn't set, cope with servers that don't send the 2 unused fields.
  • BUG #10888: s3: client: "client use spnego principal = yes" code checks wrong name.
  • BUG #11079: s3: lib: libsmbclient: If reusing a server struct, check every cli->timout miliseconds if it's still valid before use.
  • BUG #11173: s3: libcli: smb1: Ensure we correctly finish a tevent req if the writev fails in the SMB1 case.
  • BUG #11175: Fix lots of winbindd zombie processes on Solaris platform.
  • BUG #11177: s3: libsmbclient: Add missing talloc stackframe.
  • Andrew Bartlett <abartlet@samba.org>
  • BUG #11135: backupkey: Explicitly link to gnutls and gcrypt.
  • BUG #11174: backupkey: Use ndr_pull_struct_blob_all().
  • Ralph Boehme <slow@samba.org>
  • BUG #11125: vfs_fruit: Enhance handling of malformed AppleDouble files.
  • Samuel Cabrero <samuelcabrero@kernevil.me>
  • BUG #9791: Initialize dwFlags field of DNS_RPC_NODE structure.
  • David Disseldorp <ddiss@samba.org>
  • BUG #11169: docs/idmap_rid: Remove deprecated base_rid from example.
  • Volker Lendecke <vl@samba.org>
  • Stefan Metzmacher <metze@samba.org>
  • BUG #11144: talloc: Version 2.1.2.
  • BUG #11164: s4:auth/gensec_gssapi: Let gensec_gssapi_update() return NT_STATUS_LOGON_FAILURE for unknown errors.
  • Matthew Newton <matthew-git@newtoncomputing.co.uk>
  • Andreas Schneider <asn@samba.org>
  • BUG #11018: spoolss: Retrieve published printer GUID if not in registry.
  • BUG #11135: replace: Remove superfluous check for gcrypt header.
  • BUG #11180: s4-process_model: Do not close random fds while forking.
  • BUG #11185: s3-passdb: Fix 'force user' with winbind default domain.
  • Christof Schmitt <cs@samba.org>
  • BUG #11153: brlock: Use 0 instead of empty initializer list.
  • Thomas Schulz <schulz@adi.com>
  • BUG #11092: lib: texpect: Fix the build on Solaris.
  • BUG #11140: libcli/auth: Match Declaration of netlogon_creds_cli_context_tmp with implementation.
  • Jelmer Vernooij <jelmer@samba.org>
https://www.samba.org/samba/history/samba-4.2.1.html

Samba 4.2.0

Release Notes for Samba 4.2.0
March 4, 2015

This is is the first stable release of Samba 4.2.

Samba 4.2 will be the next version of the Samba suite.

IMPORTANT NOTE ABOUT THE SUPPORT END OF SAMBA 3

With the final release of Samba 4.2, the last series of Samba 3 has been discontinued! People still running 3.6.x or earlier, should consider moving to a more recent and maintained version (4.0 - 4.2). One of the common misconceptions is that Samba 4.x automatically means "Active Directory only": This is wrong!

Acting as an Active Directory Domain Controller is just one of the enhancements included in Samba 4.0 and later. Version 4.0 was just the next release after the 3.6 series and contains all the features of the previous ones - including the NT4-style (classic) domain support. This means you can update a Samba 3.x NT4-style PDC to 4.x, just as you've updated in the past (e.g. from 3.4.x to 3.5.x). You don't have to move your NT4-style domain to an Active Directory!

And of course the possibility remains unchanged, to setup a new NT4-style PDC with Samba 4.x, like done in the past (e.g. with openLDAP backend). Active Directory support in Samba 4 is additional and does not replace any of these features. We do understand the difficulty presented by existing LDAP structures and for that reason there isn't a plan to decommission the classic PDC support. It remains tested by the continuous integration system.

The code that supports the classic Domain Controller is also the same code that supports the internal 'Domain' of standalone servers and Domain Member Servers. This means that we still use this code, even when not acting as an AD Domain Controller. It is also the basis for some of the features of FreeIPA and so it gets development attention from that direction as well.

UPGRADING

Read the "Winbindd/Netlogon improvements" section (below) carefully!


NEW FEATURES

Transparent File Compression

Samba 4.2.0 adds support for the manipulation of file and folder compression flags on the Btrfs filesystem. With the Btrfs Samba VFS module enabled, SMB2+ compression flags can be set remotely from the Windows Explorer File->Properties->Advanced dialog. Files flagged for compression are transparently compressed and uncompressed when accessed or modified.

Previous File Versions with Snapper

The newly added Snapper VFS module exposes snapshots managed by Snapper for use by Samba. This provides the ability for remote clients to access shadow-copies via Windows Explorer using the "previous versions" dialog.

Winbindd/Netlogon improvements

The whole concept of maintaining the netlogon secure channel to (other) domain controllers was rewritten in order to maintain global state in a netlogon_creds_cli.tdb. This is the proper fix for a large number of bugs:

 https://bugzilla.samba.org/show_bug.cgi?id=10860
 https://bugzilla.samba.org/show_bug.cgi?id=6563
 https://bugzilla.samba.org/show_bug.cgi?id=7944
 https://bugzilla.samba.org/show_bug.cgi?id=7945
 https://bugzilla.samba.org/show_bug.cgi?id=7568
 https://bugzilla.samba.org/show_bug.cgi?id=8599

In addition a strong session key is now required by default, which means that communication to older servers or clients might be rejected by default.

  • For the client side we have the following new options:
"require strong key" (yes by default), "reject md5 servers" (no by default). E.g. for Samba 3.0.37 you need "require strong key = no" and

for NT4 DCs you need "require strong key = no" and "client NTLMv2 auth = no",

  • On the server side (as domain controller) we have the following new options:
"allow nt4 crypto" (no by default), "reject md5 client" (no by default). E.g. in order to allow Samba < 3.0.27 or NT4 members to work you need "allow nt4 crypto = yes"
  • winbindd does not list group memberships for display purposes (e.g. getent group <domain\<group>) anymore by default.
The new default is "winbind expand groups = 0" now, the reason for this is the same as for "winbind enum users = no" and "winbind enum groups = no". Providing this information is not always reliably possible, e.g. if there are trusted domains.

Please consult the smb.conf manpage for more details on these new options.

Winbindd use on the Samba AD DC

Winbindd is now used on the Samba AD DC by default, replacing the partial rewrite used for winbind operations in Samba 4.0 and 4.1.

This allows more code to be shared, more options to be honoured, and paves the way for support for trusted domains in the AD DC.

If required the old internal winbind can be activated by setting 'server services = +winbind -winbindd'. Upgrading users with a server services parameter specified should ensure they change 'winbind' to 'winbindd' to obtain the new functionality.

The 'samba' binary still manages the starting of this service, there is no need to start the winbindd binary manually.

Winbind now requires secured connections

To improve protection against rogue domain controllers we now require that when we connect to an AD DC in our forest, that the connection be signed using SMB Signing. Set 'client signing = off' in the smb.conf to disable.

Also and DCE/RPC pipes must be sealed, set 'require strong key = false' and 'winbind sealed pipes = false' to disable.

Finally, the default for 'client ldap sasl wrapping' has been set to 'sign', to ensure the integrity of LDAP connections. Set 'client ldap sasl wrapping = plain' to disable.

Larger IO sizes for SMB2/3 by default

The default values for "smb2 max read", "smb2 max write" and "smb2 max trans" have been changed to 8388608 (8MiB) in order to match the default of Windows 2012R2.

SMB2 leases

The SMB2 protocol allows clients to aggressively cache files locally above and beyond the caching allowed by SMB1 and SMB2 oplocks.

Called SMB2 leases, this can greatly reduce traffic on an SMB2 connection. Samba 4.2 now implements SMB2 leases.

It can be turned on by setting the parameter "smb2 leases = yes" in the [global] section of your smb.conf. This parameter is set to off by default until the SMB2 leasing code is declared fully stable.

Improved DCERPC man in the middle detection

The DCERPC header signing has been implemented in addition to the dcerpc_sec_verification_trailer protection.

Overhauled "net idmap" command

The command line interface of the "net idmap" command has been made systematic, and subcommands for reading and writing the autorid idmap database have been added. Note that the writing commands should be used with great care. See the net(8) manual page for details.

tdb improvements

The tdb library, our core mechanism to store Samba-specific data on disk and share it between processes, has been improved to support process shared robust mutexes on Linux. These mutexes are available on Linux and Solaris and significantly reduce the overhead involved with tdb. To enable mutexes for tdb, set

dbwrap_tdb_mutexes:* = yes

in the [global] section of your smb.conf.

Tdb file space management has also been made more efficient. This will lead to smaller and less fragmented databases.

Messaging improvements

Our internal messaging subsystem, used for example for things like oplock break messages between smbds or setting a process debug level dynamically, has been rewritten to use unix domain datagram messages.

Clustering support

Samba's file server clustering component CTDB is now integrated in the Samba tree. This avoids the confusion of compatibility of Samba and CTDB versions as existed previously.

To build the Samba file server with cluster support, use the configure command line option --with-cluster-support. This will build clustered file server against the in-tree ctdb. Building clustered samba with previous versions of CTDB is no longer supported.

Samba Registry Editor

The utitlity to browse the samba registry has been overhauled by our Google Summer of Code student Chris Davis. Now samba-regedit has a Midnight-Commander-like theme and UI experience. You can browse keys and edit the diffent value types. For a data value type a hexeditor has been implemented.

Bad Password Lockout in the AD DC

Samba's AD DC now implements bad password lockout (on a per-DC basis).

That is, incorrect password attempts are tracked, and accounts locked out if too many bad passwords are submitted. There is also a grace period of 60 minutes on the previous password when used for NTLM authentication (matching Windows 2003 SP1: https://support2.microsoft.com/kb/906305).

The relevant settings can be seen using 'samba-tool domain passwordsettings show' (the new settings being highlighted):

Password informations for domain 'DC=samba,DC=example,DC=com'

Password complexity: on
Store plaintext passwords: off
Password history length: 24
Minimum password length: 7
Minimum password age (days): 1
Maximum password age (days): 42
Account lockout duration (mins): 30
Account lockout threshold (attempts): 0
Reset account lockout after (mins): 30

These values can be set using 'samba-tool domain passwordsettings set'.

Correct defaults in the smb.conf manpages

The default values for smb.conf parameters are now correctly specified in the smb.conf manpage, even when they refer to build-time specified paths. Provided Samba is built on a system with the right tools (xsltproc in particular) required to generate our man pages, then these will be built with the exact same embedded paths as used by the configuration parser at runtime. Additionally, the default values read from the smb.conf manpage are checked by our test suite to match the values seen in testparm and used by the running binaries.

Consistent behaviour between samba-tool testparm and testparm

With the exception of the registry backend, which remains only available in the file server, the behaviour of the smb.conf parser and the tools 'samba-tool testparm' and 'testparm' is now consistent, particularly with regard to default values. Except with regard to registry shares, it is no longer needed to use one tool on the AD DC, and another on the file server.

VFS WORM module

A VFS module for basic WORM (Write once read many) support has been added. It allows an additional layer on top of a Samba share, that provides a basic set of WORM functionality on the client side, to control the writeability of files and folders.

As the module is simply an additional layer, share access and permissions work like expected - only WORM functionality is added on top. Removing the module from the share configuration, removes this layer again. The filesystem ACLs are not affected in any way from the module and treated as usual.

The module does not provide complete WORM functions, like some archiving products do! It is not audit-proof, because the WORM function is only available on the client side, when accessing a share through SMB! If the same folder is shared by other services like NFS, the access only depents on the underlaying filesystem ACLs. Equally if you access the content directly on the server.

For additional information, see

vfs_fruit, a VFS module for OS X clients

A new VFS module that provides enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver.

The module features enhanced performance with reliable named streams support, interoperability with special characters commonly used by OS X client (eg '*', '/'), integrated file locking and Mac metadata access with Netatalk 3 and enhanced performance by implementing Apple's SMB2 extension codenamed "AAPL".

The modules behaviour is fully configurable, please refer to the manpage vfs_fruit for further details.

smbclient archival improvements

Archive creation and extraction support in smbclient has been rewritten to use libarchive. This fixes a number of outstanding bugs in Samba's previous custom tar implementation and also adds support for the extraction of zipped archives.

smbclient archive support can be enabled or disabled at build time with corresponding --with[out]-libarchive configure parameters.

Changes

smb.conf changes

  Parameter Name			Description	Default
  allow nt4 crypto                     New             no
  neutralize nt4 emulation             New             no
  reject md5 client                    New             no
  reject md5 servers                   New             no
  require strong key                   New             yes
  smb2 max read                        Changed default 8388608
  smb2 max write                       Changed default 8388608
  smb2 max trans                       Changed default 8388608
  winbind expand groups                Changed default 0

CHANGES SINCE 4.2.0rc5

  • Michael Adam <obnox at samba.org>
  • BUG #11117: doc:man:vfs_glusterfs: improve the configuration section.
  • Jeremy Allison <jra at samba.org>
  • BUG #11118: tevent: Ignore unexpected signal events in the same way the epoll backend does.
  • Andrew Bartlett <abartlet at samba.org>
  • BUG #11100: debug: Set close-on-exec for the main log file FD.
  • BUG #11097: Fix Win8.1 Credentials Manager issue after KB2992611 on Samba domain.
  • Ira Cooper <ira at samba.org>
  • BUG #1115: smbd: Stop using vfs_Chdir after SMB_VFS_DISCONNECT.
  • Günther Deschner <gd at samba.org>
  • David Disseldorp <ddiss at samba.org>
  • Amitay Isaacs <amitay at gmail.com>
  • BUG #11124: ctdb-io: Do not use sys_write to write to client sockets.
  • Volker Lendecke <vl at samba.org>
  • Garming Sam <garming at catalyst.net.nz>
  • BUG #11097: Fix Win8.1 Credentials Manager issue after KB2992611 on Samba domain.
  • Andreas Schneider <asn at samba.org>
  • BUG #11127: doc-xml: Add 'sharesec' reference to 'access based share enum'.

CHANGES SINCE 4.2.0rc4

  • Michael Adam <obnox@samba.org>
  • BUG #11032: Enable mutexes in gencache_notrans.tdb.
  • BUG #11058: cli_connect_nb_send: Don't segfault on host == NULL.
  • Jeremy Allison <jra@samba.org>
  • BUG #10849: s3: lib, s3: modules: Fix compilation on Solaris.
  • BUG #11044: Fix authentication using Kerberos (not AD).
  • BUG #11077: CVE-2015-0240: s3: netlogon: Ensure we don't call talloc_free on an uninitialized pointer.
  • BUG #11094: s3: smbclient: Allinfo leaves the file handle open.
  • BUG #11102: s3: smbd: leases - losen paranoia check. Stat opens can grant leases.
  • BUG #11104: s3: smbd: SMB2 close. If a file has delete on close, store the return info before deleting.
  • Ira Cooper <ira@samba.org>
  • BUG #11069: vfs_glusterfs: Add comments to the pipe(2) code.
  • Günther Deschner <gd@samba.org>
  • BUG #11070: s3-vfs: Fix developer build of vfs_ceph module.
  • David Disseldorp <ddiss@samba.org>
  • BUG #10808: printing/cups: Pack requested-attributes with IPP_TAG_KEYWORD.
  • BUG #11055: vfs_snapper: Correctly handles multi-byte DBus strings.
  • BUG #11059: libsmb: Provide authinfo domain for encrypted session referrals.
  • Poornima G <pgurusid@redhat.com>
  • Volker Lendecke <vl@samba.org>
  • BUG #11032: Enable mutexes in gencache_notrans.tdb.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #9299: nsswitch: Fix soname of linux nss_*.so.2 modules.
  • BUG #9702: s3:smb2_server: protect against integer wrap with "smb2 max credits = 65535".
  • BUG #9810: Make validate_ldb of String(Generalized-Time) accept millisecond format ".000Z".
  • BUG #10112: Use -R linker flag on Solaris, not -rpath.
  • Marc Muehlfeld <mmuehlfeld@samba.org>
  • BUG #10909: samba-tool: Create NIS enabled users and unixHomeDirectory attribute.
  • Garming Sam <garming@catalyst.net.nz>
  • BUG #11022: Make Sharepoint search show user documents.
  • Christof Schmitt <cs@samba.org>
  • BUG #11032: Enable mutexes in gencache_notrans.tdb.
  • Andreas Schneider <asn@samba.org>
  • BUG #11058: utils: Fix 'net time' segfault.
  • BUG #11066: s3-pam_smbpass: Fix memory leak in pam_sm_authenticate().
  • BUG #11077: CVE-2015-0240: s3-netlogon: Make sure we do not deference a NULL pointer.
  • Raghavendra Talur <raghavendra.talur@gmail.com>
  • BUG #11069B: vfs/glusterfs: Change xattr key to match gluster key.

CHANGES SINCE 4.2.0rc3

  • Andrew Bartlett <abartlet@samba.org>
  • BUG #10892: CVE-2014-8143: dsdb-samldb: Check for extended access rights before we allow changes to userAccountControl.
  • Günther Deschner <gd@samba.org>
  • David Disseldorp <ddiss@samba.org>
  • BUG #10984: Fix spoolss IDL response marshalling when returning error without clearing info.
  • Amitay Isaacs <amitay@gmail.com>
  • BUG #11000: ctdb-daemon: Use correct tdb flags when enabling robust mutex support.
  • Volker Lendecke <vl@samba.org>
  • Stefan Metzmacher <metze@samba.org>
  • Christof Schmitt <cs@samba.org>
  • BUG #11034: winbind: Retry after SESSION_EXPIRED error in ping-dc.
  • Andreas Schneider <asn@samba.org>
  • BUG #11008: s3-util: Fix authentication with long hostnames.
  • BUG #11026: nss_wrapper: check for nss.h.
  • BUG #11033: lib/util: Avoid collision which alread defined consumer DEBUG macro.
  • BUG #11037: s3-libads: Fix a possible segfault in kerberos_fetch_pac().

CHANGES SINCE 4.2.0rc2

  • Michael Adam <obnox@samba.org>
BUG #10892: Integrate CTDB into top-level Samba build.
  • Jeremy Allison <jra@samba.org>
BUG #10851: lib: uid_wrapper: Fix setgroups and syscall detection on a system without native uid_wrapper library.
BUG #10896: s3-nmbd: Fix netbios name truncation.
BUG #10904: Fix smbclient loops doing a directory listing against Mac OS X 10 server with a non-wildcard path.
BUG #10911: Add support for SMB2 leases.
BUG #10920: s3: nmbd: Ensure NetBIOS names are only 15 characters stored.
BUG #10966: libcli: SMB2: Pure SMB2-only negprot fix to make us behave as a Windows client does.
BUG #10982: s3: smbd: Fix *allocate* calls to follow POSIX error return convention.
  • Christian Ambach <ambi@samba.org>
BUG #9629: Make 'profiles' work again.
  • Björn Baumbach <bb@sernet.de>
BUG #11014: ctdb-build: Fix build without xsltproc.
  • Ralph Boehme <slow@samba.org>
BUG #10834: Don't build vfs_snapper on FreeBSD.
BUG #10971: vfs_streams_xattr: Check stream type.
BUG #10983: vfs_fruit: Add support for AAPL.
BUG #11005: vfs_streams_xattr: Add missing call to SMB_VFS_NEXT_CONNECT.
  • Günther Deschner <gd@samba.org>
BUG #9056: pam_winbind: fix warn_pwd_expire implementation.
BUG #10942: Cleanup add_string_to_array and usage.
  • David Disseldorp <ddiss@samba.org>
BUG #10898: spoolss: Fix handling of bad EnumJobs levels.
BUG #10905: Fix print job enumeration.
  • Amitay Isaacs <amitay@gmail.com>
BUG #10620: s4-dns: Add support for BIND 9.10.
BUG #10892: Integrate CTDB into top-level Samba build.
BUG #10996: Fix IPv6 support in CTDB.
BUG #11014: packaging: Include CTDB man pages in the tarball.
  • Björn Jacke <bj@sernet.de>
BUG #10835: nss_winbind: Add getgroupmembership for FreeBSD.
  • Guenter Kukkukk <linux@kukkukk.com>
BUG #10952: Fix 'samba-tool dns serverinfo <server>' for IPv6.
  • Volker Lendecke <vl@samba.org>
BUG #10932: pdb_tdb: Fix a TALLOC/SAFE_FREE mixup.
BUG #10942: dbwrap_ctdb: Pass on mutex flags to tdb_open.
  • Justin Maggard <jmaggard10@gmail.com>
BUG #10852: winbind3: Fix pwent variable substitution.
  • Kamen Mazdrashki <kamenim@samba.org>
BUG #10975: ldb: version 1.1.18
  • Stefan Metzmacher <metze@samba.org>
BUG #10781: tdb: version 1.3.3
BUG #10911: Add support for SMB2 leases.
BUG #10921: s3:smbd: Fix file corruption using "write cache size != 0".
BUG #10949: Fix RootDSE search with extended dn control.
BUG #10958: libcli/smb: only force signing of smb2 session setups when binding a new session.
BUG #10975: ldb: version 1.1.18
BUG #11016: pdb_get_trusteddom_pw() fails with non valid UTF16 random passwords.
  • Marc Muehlfeld <mmuehlfeld@samba.org>
BUG #10895: samba-tool group add: Add option '--nis-domain' and '--gid'.
  • Noel Power <noel.power@suse.com>
BUG #10918: btrfs: Don't leak opened directory handle.
  • Matt Rogers <mrogers@redhat.com>
BUG #10933: s3-keytab: fix keytab array NULL termination.
  • Garming Sam <garming@catalyst.net.nz>
BUG #10355: pdb: Fix build issues with shared modules.
BUG #10720: idmap: Return the correct id type to *id_to_sid methods.
BUG #10864: Fix testparm to show hidden share defaults.
  • Andreas Schneider <asn@samba.org>
BUG #10279: Make 'smbclient' use cached creds.
BUG #10960: s3-smbclient: Return success if we listed the shares.
BUG #10961: s3-smbstatus: Fix exit code of profile output.
BUG #10965: socket_wrapper: Add missing prototype check for eventfd.
  • Martin Schwenke <martin@meltin.net>
BUG #10892: Integrate CTDB into top-level Samba build.
BUG #10996: Fix IPv6 support in CTDB.

CHANGES SINCE 4.2.0rc1

  • Jeremy Allison <jra@samba.org>
BUG #10848: s3: smb2cli: query info return length check was reversed.
  • Björn Baumbach <bb@sernet.de>
BUG #10862: build: Do not install 'texpect' binary anymore.
  • Chris Davis <cd.rattan@gmail.com>
BUG #10859: Improve samba-regedit.
  • Jakub Hrozek <jakub.hrozek@gmail.com>
BUG #10861: Fix build of socket_wrapper on systems without SO_PROTOCOL.
  • Volker Lendecke <vl@samba.org>
BUG #10860: registry: Don't leave dangling transactions.
  • Stefan Metzmacher <metze@samba.org>
BUG #10866: libcli/smb: Fix smb2cli_validate_negotiate_info with min=PROTOCOL_NT1 max=PROTOCOL_SMB2_02.
  • Christof Schmitt <cs@samba.org>
BUG #10837: idmap_rfc2307: Fix a crash after connection problem to DC.

KNOWN ISSUES

https://download.samba.org/pub/samba/rc/WHATSNEW-4.2.0rc2.txt

Samba 4.2 release blocker