Release Announcements
=====================
-This is the first release candidate of Samba 4.3. This is *not*
+This is the first preview release of Samba 4.7. This is *not*
intended for production environments and is designed for testing
purposes only. Please report any defects via the Samba bug reporting
system at https://bugzilla.samba.org/.
-Samba 4.3 will be the next version of the Samba suite.
+Samba 4.7 will be the next version of the Samba suite.
UPGRADING
=========
-Nothing special.
-NEW FEATURES
-============
-
-Logging
--------
-
-The logging code now supports logging to multiple backends. In
-addition to the previously available syslog and file backends, the
-backends for logging to the systemd-journal, lttng and gpfs have been
-added. Please consult the section for the 'logging' parameter in the
-smb.conf manpage for details.
-
-Spotlight
----------
-
-Support for Apple's Spotlight has been added by integrating with Gnome
-Tracker.
-
-For detailed instructions how to build and setup Samba for Spotlight,
-please see the Samba wiki: <https://wiki.samba.org/index.php/Spotlight>
-
-New FileChangeNotify subsystem
-------------------------------
-
-Samba now contains a new subsystem to do FileChangeNotify. The
-previous system used a central database, notify_index.tdb, to store
-all notification requests. In particular in a cluster this turned out
-to be a major bottleneck, because some hot records need to be bounced
-back and forth between nodes on every change event like a new created
-file.
-
-The new FileChangeNotify subsystem works with a central daemon per
-node. Every FileChangeNotify request and every event are handled by an
-asynchronous message from smbd to the notify daemon. The notify daemon
-maintains a database of all FileChangeNotify requests in memory and
-will distribute the notify events accordingly. This database is
-asynchronously distributed in the cluster by the notify daemons.
-
-The notify daemon is supposed to scale a lot better than the previous
-implementation. The functional advantage is cross-node kernel change
-notify: Files created via NFS will be seen by SMB clients on other
-nodes per FileChangeNotify, despite the fact that popular cluster file
-systems do not offer cross-node inotify.
-
-Two changes to the configuration were required for this new subsystem:
-The parameters "change notify" and "kernel change notify" are not
-per-share anymore but must be set globally. So it is no longer
-possible to enable or disable notify per share, the notify daemon has
-no notion of a share, it only works on absolute paths.
-
-New SMB profiling code
-----------------------
-
-The code for SMB (SMB1, SMB2 and SMB3) profiling uses a tdb instead
-of sysv IPC shared memory. This avoids performance problems and NUMA
-effects. The profile stats are a bit more detailed than before.
+NEW FEATURES/CHANGES
+====================
-Improved DCERPC man in the middle detection for kerberos
---------------------------------------------------------
+The "strict sync" global parameter has been changed from
+a default of "no" to "yes". This means smbd will by default
+obey client requests to synchronize unwritten data in operating
+system buffers safely onto disk. This is a safer default setting
+for modern SMB1/2/3 clients.
-The gssapi based kerberos backends for gensec have support for
-DCERPC header signing when using DCERPC_AUTH_LEVEL_PRIVACY.
+Authentication and Authorization audit support
+----------------------------------------------
-SMB signing required in winbindd by default
--------------------------------------------
+Detailed authentication and authorization audit information is now
+logged to Samba's debug logs under the "auth_audit" debug class,
+including in particular the client IP address triggering the audit
+line. Additionally, if Samba is compiled against the jansson JSON
+library, a JSON representation is logged under the "auth_json_audit"
+debug class.
-The effective value for "client signing" is required
-by default for winbindd, if the primary domain uses active directory.
+Audit support is comprehensive for all authentication and
+authorisation of user accounts in the Samba Active Directory Domain
+Controller, as well as the implicit authentication in password
+changes. In the file server and classic/NT4 domain controller, NTLM
+authentication, SMB and RPC authorization is covered, however password
+changes are not at this stage, and this support is not currently
+backed by a testsuite.
-Experimental NTDB was removed
------------------------------
-
-The experimental NTDB library introduced in Samba 4.0 has been
-removed again.
-
-Improved support for trusted domains (as AD DC)
------------------------------------------------
-
-The support for trusted domains/forests has improved a lot.
-
-samba-tool got "domain trust" subcommands to manage trusts:
-
- create - Create a domain or forest trust.
- delete - Delete a domain trust.
- list - List domain trusts.
- namespaces - Manage forest trust namespaces.
- show - Show trusted domain details.
- validate - Validate a domain trust.
-
-External trusts between individual domains work in both ways
-(inbound and outbound). The same applies to root domains of
-a forest trust. The transitive routing into the other forest
-is fully functional for kerberos, but not yet supported for NTLMSSP.
-
-While a lot of things are working fine, there are currently a few limitations:
-
- - Both sides of the trust need to fully trust each other!
- - No SID filtering rules are applied at all!
- - This means DCs of domain A can grant domain admin rights
- in domain B.
- - It's not possible to add users/groups of a trusted domain
- into domain groups.
-
-SMB 3.1.1 supported
--------------------
-
-Both client and server have support for SMB 3.1.1 now.
+smb.conf changes
+================
-This is the dialect introduced with Windows 10, it improves the secure
-negotiation of SMB dialects and features.
+ Parameter Name Description Default
+ -------------- ----------- -------
+ auth event notification New parameter no
+ auth methods Deprecated
+ map untrusted to domain Deprecated
+ strict sync Default changed yes
-New smbclient subcommands
--------------------------
+Removal of lpcfg_register_defaults_hook()
+-----------------------------------------
- - Query a directory for change notifications: notify <dir name>
- - Server side copy: scopy <source filename> <destination filename>
+The undocumented and unsupported function lpcfg_register_defaults_hook()
+that was used by external projects to call into Samba and modify
+smb.conf default parameter settings has been removed. If your project
+was using this call please raise the issue on
+samba-technical@lists.samba.org in order to design a supported
+way of obtaining the same functionality.
-New rpcclient subcommands
--------------------------
+Change of loadable module interface
+-----------------------------------
- netshareenumall - Enumerate all shares
- netsharegetinfo - Get Share Info
- netsharesetinfo - Set Share Info
- netsharesetdfsflags - Set DFS flags
- netfileenum - Enumerate open files
- netnamevalidate - Validate sharename
- netfilegetsec - Get File security
- netsessdel - Delete Session
- netsessenum - Enumerate Sessions
- netdiskenum - Enumerate Disks
- netconnenum - Enumerate Connections
- netshareadd - Add share
- netsharedel - Delete share
+The _init function of all loadable modules in Samba has changed
+from:
-New modules
------------
+NTSTATUS _init(void);
- idmap_script - see 'man 8 idmap_script'
- vfs_unityed_media - see 'man 8 vfs_unityed_media'
- vfs_shell_snap - see 'man 8 vfs_shell_snap'
+to:
-######################################################################
-Changes
-#######
+NTSTATUS _init(TALLOC_CTX *);
-smb.conf changes
-----------------
-
- Parameter Name Description Default
- -------------- ----------- -------
- logging New (empty)
- msdfs shuffle referrals New no
- smbd profiling level New off
- spotlight New no
- tls priority New NORMAL:-VERS-SSL3.0
- use ntdb Removed
- change notify Changed to [global]
- kernel change notify Changed to [global]
- client max protocol Changed default SMB3_11
- server max protocol Changed default SMB3_11
-
-Removed modules
----------------
-
-vfs_notify_fam - see section 'New FileChangeNotify subsystem'.
+This allows a program loading a module to pass in a long-lived
+talloc context (which must be guaranteed to be alive for the
+lifetime of the module). This allows modules to avoid use of
+the talloc_autofree_context() (which is inherently thread-unsafe)
+and still be valgrind-clean on exit. Modules that don't need to
+free long-lived data on exist should use the NULL talloc context.
KNOWN ISSUES
============
-Currently none.
+https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.7#Release_blocking_bugs
+
#######################################
Reporting bugs & Development Discussion
If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored. All bug reports should
-be filed under the Samba 4.3 product in the project's Bugzilla
+be filed under the Samba 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).
git.samba.org / ambi / samba-autobuild / .git / blobdiff