WHAT'S NEW IN Samba 2.2.6rc4 - 15th October 2002 ================================================= This is a preview snapshot of SAMBA_2_2 cvs branch. This is a non-production release provided for testing purposes only. New Parameters -------------- Refer to the smb.conf(5) man page for complete descriptions of new parameters. * profile acls (S) workaround for issue with WinXP SP1 and roaming user profiles Removed Parameters ------------------ * max packet (G) * packet size (G) Modified Parameters ------------------- * max xmit (G) new default value * large readwrite (G) new default value The following options have been added to Samba's configure script --with-sendfile Enable experimental sendfile support --with-winbind-ldap-hack Enable winbindd_ldap_hack() functionality for Windows 2000 native mode domains Changes since 2.2.5 -------------------- 1) Fixed several compiler warnings caused by the use of const parameters 2) Fixed a hang in the main smbd process caused by an EINTR in the wrong place 3) Fixed string substitutions to accept a length for sanity checks 4) Fixed 17-bit length field in nmb header 5) Removed non-portable inline declaration for functions 6) Performance fix for including files with an smb.conf variable in the path name 7) Fix for parsing LPRng lpq output 8) Parsing fix for PRINTER_INFO_2 structure which was causing viewing printer properties to fail 9) Fix for printer change notification and Windows NT clients which caused the client to go into an infinite loop of refreshing the local printers folder 10) Allow trans2 and nttrans messages to be processed in oplock break state which fixes a problem with oplock break requests and Win2k clients 11) Don't crash on setfileinfo on printer fsp 12) Memory fixes caught by Valgrind 13) Updates to stop spurious error message in tdb 14) Fix silly logic bug in 'make smbd processes' and 'status = no' check 15) Fix compilation of pam_smbpass and --with-ldap 16) Fix compilation of smbwrapper on Solaris hosts 17) fix logic error in a check for enabling the winbind_pam_auth_crap() code & fix formatting typo in --with-winbind-auth-challenge 18) Correcting check for ldap_start_tls() 19) Fixed a problem with getgroups() where it could include our current effective gid ( Changes since 2.2.6pre1 ) 20) fix incorrect semantics in the DeletePrinterDriver() spoolss rpc to only attempt to delete the architecture specified by the client 21) Don't allow TEMP attribute on directory open 22) Restore VxFS quotas to the 2.2 branch 23) Added basic "Wizard" functionality to SWAT 24) Fix initial "allocation size" in NTcreate&X call 25) Fix for open fid, "nametoolong" 26) Exit server on receipt of a non-SMB packet. Ensure we have at least smb_size bytes before processing a packet 27) Replace inet_aton with inet_addr() to correct compile problems on Solaris 28) Include the "account" objectclass when adding a new account to --with-ldapsam in order to comply with the data model implemented by OpenLDAP 2.1.x 29) Various fixes for POSIX compliance 30) Correct alignment & offset bug in EnumPrinterDataEx() 31) Fix access checks when modifying forms using a print server handle (not just a printer handle) 32) Account for case data_len == 0 in EnumPrinterDataEx() 33) Fix logic error in blocking lock code 34) Fixed various incorrect return codes to clients 35) Add RESOLVE_DFSPATH to mkdir operations 36) Fix longstanding bug in Win2k clients by clearing the shortname buffer before returning ASCII short name 37) added -t option to smbpasswd for explicitly changing a trust account password when operating in security = domain 38) installed -x option to testparm to eXclude printing all parameter values that are at default settings. 39) Fix shares/printers view in SWAT so that only Basic options are exposed upon initial entry. 40) Added 1125 & KOI8-U to codepage list in Makefile.in 41) Include separate configure checks for *openbsd* & *freebsd* when determining flags used to compile shared libraries. ( Changes since 2.2.6pre2 ) 42) Merge in free list unlock on error fix 43) Correctly fail opens with mismatching SYSTEM or HIDDEN attributes if we are mapping system or hidden 44) Fix bug with stat mode open being done on read-only open with truncate 45) Fix crash bug discovered where cli struct was being deallocated in a called function 46) Ensure we open UNIX fifo's non-blocking 47) Fix DeletePrinterDriver() (hopefully for the last time...yeah right....) 48) only lowercase global_myname in the %L substitution, not the whole string 49) Merged Steve French's fix for OS/2 EA return error being removed 50) Patch from Steve French to fix difference in responses to smbclient //server/share ls / on Samba and Windows 2000 51) Print error and exit if smb.conf doesn't have security=domain and encrypt passwords=yes when joining domain 52) Added final Steve French patch for "required" attributes with old dir listings 53) Initialize user_rid value in WINBIND_USERINFO structure returned by the rpc version of query_user() 54) Ensure we've failed a lock with a lock denied message before automatically pushing it onto the blocking queue 55) Add experimental --with-sendfile code 56) alignment fix in printing code merged from HEAD 57) Merge fix for other sids in token from HEAD 58) Merge winbindd with current (more advanced) state of play in APPLIANCE_HEAD 59) fix smbclient / Win98 off by one bug 60) Never, *ever* hold a mutex lock in the message database where there may be traversals being attempted 61) Add LDAP hack for retrieving the SAM sequence number when a member of a Windows 2000 native mode domain 62) Fix race condition when changing a machine account password as we were no longer locking the secrets entry 63) Allow '@' as a valid character in domain names 64) remove jobs from the spool directory when using cups 65) removed -lresolv for --enable-ldapsam 66) Memory leak fix and correct use of negative caching in winbindd 67) Updated spoolss parsing code with known good state of APPLIANCE_HEAD 68) Delete printer security check was reversed 69) Windows allows delete printer on a handle opened by an admin user, then used on a pipe handle created by an anonymous user...We do to now... 70) Make explicit the difference between a tdb key with no data attached, and a non existent entry 71) Ensure we register the 1c name on the unicast subnet. 72) Fix inheritance problem when recursively setting ACLs on directories 73) prevent ACL set on read-only share 74) Ensure we never have more than MAX_PRINT_JOBS in a queue 75) Added timeout to tdb_lock_bystring() 76) Ensure we set FIRST+LAST flags on a bind request 77) Add version strings to the usage message for smbcacls and smbpasswd 78) Fix bug in the write cache code 79) make the default printed values for boolean the same for all parameters ( Changes since 2.2.6rc1 ) 80) Default all LDAP connections to v3 with compiling with --with-ldapsam ( Changes since 2.2.6rc2 ) 81) Fix memory leak in smbspool 82) Fix bug in mangling code that resulted in Win9x clients not being able to execute batch files in deep, non 8.3 directory paths ( Changes since 2.2.6rc3 ) 83) Fix infinite looping bug in winbindd_getgrent() 84) Fix crash bug on 64-bit systems (merge from HEAD) 85) Fix extended character bug when setting LanMan/NT password 86) Negotiate same SMB read size as a Windows 2000 file server to fix performance bug with NT4 clients ========================================= Older releases notes for 2.2.x distributions follow ----------------------------------------------------------------------------- The release notes for 2.2.5 follow : There have been several fixes and internal enhancements which include: * Several compile fixes for Solaris and HP-UX * More printing fixes for Windows NT/2k/XP clients * New options for the VFS recycle bin library * New internal signal handling semantics relating to directory change notification and oplocks New/Changed parameters in 2.2.5 -------------------------------- For more information on these parameters, see the man pages for smb.conf(5). Added/changed parameters ------------------------ * block size = * force unknown acl user = * mangling method = [hash|hash2] Deprecated Parameters --------------------- The following parameters have been marked as deprecated and will be removed in Samba 3.0 * strip dot * status Removed Parameters ------------------ none Changes in 2.2.5 ---------------- See the cvs log for SAMBA_2_2 for more details 1) Removal of several compiler warnings, incorrect Makefile dependencies, and wrong autoconf tests on various platforms--Solaris & HP-UX 10.20 being the predominantly reported platforms 2) Fixed winbindd crash bug on the IBM s390 running Linux 3) Inclusion of enhanced Linux quota support 4) Correctly link against Sun LDAP libraries on Solaris 8 (even through there is no apparent SSL support there) 5) POSIX conformance patches 6) Include new configure --enable-cups option (can also be disabled even if CUPS libraries are installed on the system) 7) Set reasonable default for the "passwd program" parameter using an autoconf test 8) Added --with-winbind-auth for enabling winbindd_pam_auth_crap() code 9) fixed bug to prevent root account from being deleted by the "delete user script" 10) Inclusion of autoconf script for building VFS modules 11) Add new run time options to the VFS recycle bin library (see examples/VFS/recycle/README for details) 12) Include findsmb perl script as part of the "make install" process 13) Return correct error code for EnumPrinters(PRINTER_ENUM_REMOTE, InfoLevel1) to fix a bug where printers appear at the workgroup level in the Windows NT/2k APW browse list 14) Added support to nmblookup to return NMB flags (See nmblookup(8) for details) 15) Fix length bug that caused password changes from Windows NT/2k clients to occasionally fail 16) Correct false password expiration when using --with-ldapsam caused by missing attributes in the directory 17) added -S option to smbpasswd for storing the SID of a domain controller as the local machine SID in secrets.tdb. See the smbpasswd(8) man page for details. 18) Various fixes for UNIX CIFS extensions commands 19) Fixed CIDR notation in "hosts allow/deny" 20) Change semantics of an idle connection to mean "no open files and no open handles". We cannot idle a connection if there are open named pipe handles. This fixes scalability problem on Samba print servers and NT/2k clients introduced in 2.2.4 21) Fix germam umlaut problem when returning ACL entries 22) Return NT_STATUS_OBJECT_NAME_NOT_FOUND for ENOENT. This fixes the bug of running the Microsoft Access executable (msaccess.exe) and database files from a Samba share documented in the 2.2.4 release 23) Corrected signal handling relating to directory change notification and kernel oplocks 24) Fix bug in unix_to_nt_time() that appeared on files dated close to Daylight Savings Time 25) Corrected alignment bug in spoolss parsing code which caused Win2k/XP clients not to be able to view printer properties from a Samba host 26) Fixed spoolss parsing bug causing printing from ACT! 2000 running on Windows 2k/XP clients to fail 27) Fixed incorrect error check in mod_share_entry() 28) Allow %S variable in MS-DFS root paths 29) Correct a bug regarding the use of 'wbinfo -A' 30) Fixed libnss_wins.so to correctly work on RedHat 7.3 systems 31) Store the key for a name-to-sid cache entry in upper case rather than whatever case the request was made in. This gets rid of duplicate cache entries. 32) Fix bug causing the pid stored in winbindd's pid file to be the wrong id 33) Enhanced error reporting messages of wbinfo 34) Parameterize block size on disk size return 35) Added new parameter to allow incoming ACLs to have owner and group forced to the currently logged in user. This fixes the XCOPY /O problem 36) Fixed bug in local_change_password() caused by reusing a struct passwd* pointer 37) Change default value for "ldap port" to 389 if "ldap ssl = no" 38) Updated HOWTO's, manpages, and general documentation.... 39) Allow root as well as domain admins to open an LDAP connection 40) Fixed veto files bug with ".*" 41) Fixed uninitialized variable bug in smbpasswd that was causing a random IP address to be used in the connection when joining a domain 42) Fix for joining a domain with a netbios name of 15 characters and pre-creating the account on the DC 43) Added links to new documentation on SWAT welcome page ----------------------------------------------------------------------------- The release notes for 2.2.4 follow : There have been several fixes and internal enhancements which include: * More/better SPOOLSS printing functionality for Windows NT/2k/XP clients. * Several fixes relating to serving PC database files such as (Access and FoxPro) from a Samba file share. * Several improves in Samba's VFS layer which can be seen in the inclusion of a "Recycle Bin" vfs module. See examples/VFS/README for more details on this. * Addition of a tool (tdbbackup) for backup/restore of Samba's tdb's * Continued improvements to winbind for greater scalability and stability * Several fixes related to Samba's MS-DFS support * Rpcclient's various printer commands now work (again) New/Changed parameters in 2.2.4 -------------------------------- For more information on these parameters, see the man pages for smb.conf(5). Added/changed parameters ------------------------ * csc policy * inherit acls * nt status support * lock spin count * lock spin time * pid directory * winbind use default domain Deprecated parameters --------------------- The following parameters have been marked as deprecated and will be removed in Samba 3.0 * postscript * printer driver * printer driver file * printer driver location Removed Parameters ------------------ none Changes in 2.2.4 ---------------- See the cvs log for SAMBA_2_2 for more details 1) added -c option to smbpasswd 2) reworked smbpasswd internal command line option parsing 3) small various bug fixes to experimental pdb_tdb.c 4) Enforce spoolss RPCs based on the access granted at PrinterOpen() 5) Added missing access checks to [add/delete/set]form 6) Compile fixes for pam_smbpass 7) fix smbd crash when netbios session request fails from spoolss_connect_to_client(). 8) fixed logic bug that prevent SetPrinter() from storing devmode 9) Removed extra get_printer_snum() calls from set_printer_hnd_name() 10) fix joining domain on big endian machine when using -U to smbpasswd 11) allow command line arg to override smb.conf log level 12) continue to retry to register 1b name with wins server if there is an old IP there 13) fix smbclient print crash bug 14) 9x pnp fix when the config file and driver file are different 15) force testparm to print the correct value for log level 16) fix swat to show full log level info 17) fix server GetPrinterData() fields to be more sensible 18) fix logic error in SetPrinterDataEx() 19) Only set smb_read_error if not already set 20) Fix string returns that require unicode 21) Merge of printing performance fixes from appliance 22) lpq parsing fixes 23) Back port tridge's xcopy /o fix from HEAD 24) Fix the printer change notify code (unfinished) 25) Patch for Domain users not showing up 26) Fixed SetPrinterData(magic key) to support zero length DEVMODE 27) Ensure that all methods of looking up and connecting to DC's work using identical logic. 28) Merge in the mutex code to stop multiple domain logon failure 29) Ignore 0/0 lock 30) Fix winbindd to respect command line debuglevel as nmbd/smbd 31) Update with tdbbackup from HEAD 32) Fix for typo on solaris nss 33) Merge in the locking changes from HEAD 34) Added POSIX ACL layer into the vfs 35) Fix the returning of domain enum 36) Fix the generation of the MACHINE.SID file into the secrets.tdb. 37) Enable test for -rdynamic when building binaries 38) Remove the "stat open" code - make it inline 39) Fix the mp3 rename bug 40) Fix for Explorer DFS problems on older Windows 9X machines 41) implement OpenPrinter() opnum == 0x01 42) Matched W2K *insane* open semantics.... 43) small fix that will prevent the "failed to marshall R_NET_SAMLOGON" message in the logs 42) don't do checking of local passdb in smbpasswd if using -r option 43) fix "smbpasswd -j DOMAIN -r * -U Admin%XXXX" so that it doesn't try to connect to a server named '*' 44) merge rpcclient code from HEAD 45) Ensure MACHINE.SID update done before child spawns 46) Fix the bad path errors for mkdir so mkdir \a\b\c\d works 47) Removed --with-vfs - always built if available 48) Fixed psec for 2.2 49) Fixed the handle leak in the connection management code 50) fix disable spoolss after the switch to nt status codes 51) Added Shirish's client side caching policy change 52) Honor the specversion when parsing the the DEVICEMODE 53) fix parsing bug when DEVICEMODE's private data does not end on a 4 byte boundary 54) do not idle an smbd when there is an open pipe 55) when a new driver is added to a Samba server, cycle through all printers and bump the change_id for each one bound to the driver 56) allow smbclient to work with a FIFO as well (needed for KDE ioslave) 57) various updates to pdb_nisplus.c 58) many small documentation updates 59) removed many compiler warnings ----------------------------------------------------------------------------- The release notes for 2.2.3a follow : This is a minor bugfix release for the 2.2.3 release. The 2.2.3 release had a problem that was visible to Windows 2000 Explorer users in that copying files into a share that already existed failed with "Access Denied" rather than asking the user if an overwrite was required. This was due to an incorrect error mapping between the UNIX EXIST error code and the NT status error. As Windows Explorer is a highly visible end user application a quick bugfix release was required, hence 2.2.3a. Compilation on HPUX versions earlier than HPUX 11 has also been corrected. The cvs.log file is no longer included with this release, as it adds 13Mb to the size of the release, and is easily available on the Web. ----------------------------------------------------------------------------- The release notes for 2.2.3 follow : There are several important scaling bugs that have been fixed in this release for large server systems so an upgrade is recommended. LDAP update ----------- Much work has been done on the LDAP backend code. The configure option --with-ldapsam is now considered to be stable. The schema used has changed, see the file examples/LDAP/samba.schema for the new schema. New documentation explaining how to set up a Samba only PDC/BDC setup has been added in the files Samba-LDAP-HOWTO and Samba-BDC-HOWTO in the documentation tree. winbindd daemon extended ------------------------ Samba 2.2.2 was the first release to include the winbind daemon. This code allows UNIX systems that implement the name service switch (nss) to be entered into a Windows NT/2000 domain and use the Domain controller for all user and group enumeration. Samba 2.2.3 fixes the known memory leaks in winbindd and has been extended to work with SGI IRIX and HPUX (11.x) in addition to the earlier targets of Linux and Solaris. For more information on using winbind, see the man pages for winbindd and wbinfo. Note that winbindd is not installed by default. New/Changed parameters in 2.2.3 -------------------------------- For more information on these parameters, see the man pages for smb.conf. Added/changed parameters. ------------------------- unix extensions Enables the experimental UNIX CIFS extensions in smbd. See the manpage for more details. default devmode Some printer drivers will crash the Windows NT/2000 spooler service if they are given a default devmode, some require it. This parameter allows the administrator a choice of whether smbd returns such a default devmode for a driver. share modes This parameter has been restored to allow people who wish smbd to ignore client share modes. This is *very dangerous* and should not be set without full knowledge of what this is designed for. Changes in 2.2.3 ----------------- 1). Fixed shared library compile for Solaris with native compiler. 2). UNIX CIFS extensions code added (donated by HP). 3). Changed to using NT status codes on the wire if the client can support this. 4). altname command to show 8.3 name added to smbclient. 5). const-safe endian macros now used. 6). client code now uses UNICODE on the wire. 7). Correctly return fault PDU's on bad handle. 8). Improved NT error code mapping table. 9). Many new point and print RPC calls added. 10). Win9x clients can now see full user list. 11). field added to identify simultaneous open files (no longer use dev/inode/time as unique value). 12). HPUX ACL code added (donated by HP). 13). vfs interfaces updated (again !). 14). MSDOS Code Page 866 -> 1251 mapping added. 15). winbindd now processes quit/hup signals correctly. 16). No tdb traversal done on startup/shutdown - ensures scalability. 17). Fix bug with paths for homes share. 18). Fixed copyfile for OS/2. 19). Fix group membership when groups are on more than one line. 20). Fixed core dumps in posix ACL mapping code. 21). Tidyup of UNICODE functions (put/get). 22). Move rpcclient to the new libsmb code. 23). Add missing Windows 2000 passthough trans2 calls. 24). Return check all tdb calls. 25). Make local name lookup work even if wins server is down. 26). pam session code added to winbind. 27). Added winbindd cache to all lookups. 28). Fix allocate bugs that caused file sizes to be incorrect. 29). Fixed write cache code - now safe to use. 30). Fixed winbindd memory leaks. 31). winbindd will now do name lookups (to allow non Open Source systems to do the nsswitch WINS lookup). Fixed by SGI. 32). passdb memory leaks fixed. 33). LDAP code updates and now properly maintained. 34). Finally figured out how changeid is meant to work. 35). Downlevel printing now looks as NT does in print monitor window. 36). Many fixups in spoolss printing RPC parsing. 37). Speed up password enumeration as a PDC. 38). Fix printer changed notify messages (work from HP). 39). Fix modify timestamp on close code. 40). Fix long standing mangled names bug. 41). Fix delete on close semantics. 42). Stop opening all files with O_NONBLOCK ! 43). Use O_NOFOLLOW for systems that have it and don't want symlinks. 44). Ensure NT supplementary groups get added to user token. 45). Try and mitigate effects of DNS timeout (do less lookups). 46). Added current user connection context stack. 47). Fixes to utmp code. 48). smbw code tidyups. 49). Added tdb open log code. Several tdb fixes. ----------------------------------------------------------------------------- The release notes for 2.2.2 follow : New daemon included - winbindd ------------------------------ Samba 2.2.2 is the first release to include the winbind daemon. This code allows UNIX systems that implement the name service switch (nss) to be entered into a Windows NT/2000 domain and use the Domain controller for all user and group enumeration. This allows a Samba server added to a Windows domain to serve file and print services with *NO* local users needed in /etc/passwd and /etc/group - all users and groups are read directly from the Windows domain controller. In addition with pam_winbind which allows a PAM enabled UNIX system to use a Windows domain for authentication service this allows single sign on and account control across UNIX and Windows systems. The current version of winbindd shipped in 2.2.2 does have some memory leaks, which will be addressed for the next Samba release, so it is advisable to monitor the winbind process. This code is being used in production by several vendors, so the leaks are manageable. In addition, this version of winbind does not work correctly against a Samba PDC, due to some missing calls on the PDC side. These problems are being addressed for the next Samba release, but it was thought better to release the code now rather than delay the main Samba code to match the winbind release schedule. For more information on using winbind, see the man pages for winbindd and wbinfo. Note that winbindd is not installed by default. New/Changed parameters in 2.2.2 ------------------------------- For more information on these parameters, see the man pages for smb.conf. Added/changed parameters. ------------------------- strict allocate Causes Samba not to create UNIX 'sparse' files, but to follow the Windows behavior of always allocating on-disk space. use mmap Set to 'on' by default, only set to 'off' on HPUX 11.x or below or other UNIX systems that don't have coherent mmap/read-write internal caches. You should not need to set this parameter. nt acl support This parameter has been changed to a per-share option, and is very useful in enabling Windows 2000 SP2 to load/save profiles from a Samba share. New printing parameters. ------------------------ disable spoolss Setting this parameter causes Samba to go back to the old 2.0.x LANMAN printing behavior, for people who wish to disable the new SPOOLSS pipe. use client driver Causes Windows NT/2000 clients to need have a local printer driver installed and to treat the printer as local. New LDAP parameters. -------------------- Samba 2.2.2 contains new code to maintain a Samba SAM database on a remote LDAP server. These parameters have been added as part of this code. These parameters are only available when Samba has been compiled with the --with-ldapsam option. ldap admin dn ldap ssl New SSL parameters. ------------------- The SSL support in Samba has been fixed. These new parameters are part of the changes added. These parameters are only available when Samba has been compiled with the --with-ssl option. Please see the smb.conf man page for details. ssl egd socket ssl entropy file ssl entropy bytes New winbindd parameters. ------------------------ These parameters are used by winbindd. See the man page for winbindd for details. winbind separator winbind uid winbind gid winbind cache time winbind enum users winbind enum groups template homedir template shell Removed parameters. ------------------- share modes ldap root ldap root passwd New Documentation. ------------------ Some new README's have been added in the docs/ directory. These cover using roving profiles with Windows 2000 SP2 (docs/README.Win2kSP2), and how to use Samba to help prevent Windows virus spread (docs/README.Win32-Viruses). Quota problems on a Linux 2.4 kernel. ------------------------------------- Currently the quota interfaces have diverged between the Linus 2.4.x kernels and the Alan Cox 2.4.x kernels (the Alan Cox variants are shipped with RedHat). Running quota-enabled Samba compiled on an Alan Cox kernel works correctly on an Alan Cox kernel (the one shipped by default with RedHat 7.x) but fails on a Linus kernel. This is a mess, and hopefully Alan and Linus will sort it out soon. In the meantime we need to ship..... Changes in 2.2.2 ----------------- 1). mmap tdb code disabled on HPUX. This should prevent the reports of tdb corruption on HUPX. 2). Large file support set to off in Solaris 5.5 and below. 3). Better CUPS detection. 4). New SAM (password database) backends - smbpasswd (traditional), LDAP, NIS+ and Samba TDB. 5). Quota fixups on Linux. 6). libsmbclient stand-alone code added. Can be built as a shared library under Linux. 7). Tru64 ACL support added. 8). winbindd option added. 9). Realloc fail tidyup fixes all over the code. 10). Large improvement in hash table code efficiency - would be found with large stat caches. 11). Error code consistency improved (still needs more work). 12). Profile shared memory support added to nmbd. 13). New Windows 2000/NT passthrough info levels added. 14). readraw/writeraw code rewritten - many bugs fixed. 15). UNIX password sync (non pam) code fixed, use correct wildcard matcher. 16). Reverse DNS lookup avoided on socket open. 17). Bug preventing nmbd re-registering names on WINS server timeout fixed. 18). Zero length byte range lock code added. Much closer to Windows semantics. 19). Alignment fault fixes for Linux/Alpha. 20). Error checking on tdb returns vastly improved. 21). Handling of delete on close fixed. No longer possible to leave 'dead' file entries. 22). Handling of oplock break failure cleanups improved. Should not be able to leave 'dead' entries. 23). Fix handling of errors trying to set 64 bit locks on 32 bit NFS mounts. 24). Misc. MS-DFS code fixes. 25). Ignore logon packets if not a PDC (needed for PDC/BDC failover). 26). winbind pam module added. 27). Order N^^2 enumeration of printers problem fixed. 28). Password backend database code re-ordered to allow different password backends (at compile time currently). 29). Improved print driver version detection for Windows 2000. 30). Driver DEVMODE initialization fixes. 31). Improved SYSV print parse code. 32). Fixed enumeration of large numbers of users/groups from Windows clients. Code still too slow. 33). Fix for buggy NetApp RPC pipe clients. 34). Fix for NT sending multiple SetPrinterDataEx calls. 35). Fix for logic bug where smbd could delay oplock break request messages from other smbd daemons whilst client kept us busy. 36). Fix deadlock problem with connections tdb on enumeration. 37). Fixes for setting/getting NT ACLs - improved POSIX mapping both ways. 38). Removed unused readbmpx/writebmpx code. 39). Attempt to fix Linux 2.4.x quota mess. 40). Improved ctemp code for Windows 2000 compatibility. 41). Finally understood difference between set EOF and set allocation requests. Added strict allocate parameter to help. 42). Correctly return name types on name to SID lookups. 43). tdb spinlock code update. 44). Use pread/pwrite on systems that have it to fix race condition in tdb code. ----------------------------------------------------------------------------- The release notes for 2.2.1a follow : This is a minor bugfix release for 2.2.1, *NOT* security related. 1). 2.2.1 had a bug where using smbpasswd -m to add a Windows NT or Windows2000 machine into a Samba hosted PDC would fail due to our stricter user name checking. We were disallowing user names containing '$', which is needed when using smbpasswd to add a machine into a domain. Automatically adding machines (using the native Windows tools) into a Samba domain worked correctly. 2.2.1a fixes this single problem. ----------------------------------------------------------------------------- The release notes for 2.2.1 follow : New/Changed parameters in 2.2.1 ------------------------------- Added parameters. ----------------- obey pam restrictions When Samba is configured to use PAM, turns on or off Samba checking the PAM account restrictions. Defaults to off. pam password change When Samba is configured to use PAM, turns on or off Samba passing the password changes to PAM. Defaults to off. large readwrite New option to allow new Windows 2000 large file (64k) streaming read/write options. Needs a 64 bit underlying operating system (for Linux use kernel 2.4 with glibc 2.2 or above). Can improve performance by 10% with Windows 2000 clients. Defaults to off. Not as tested as some other Samba code paths. hide unreadable Prevents clients from seeing the existence of files that cannot be read. Off by default. enhanced browsing Turn on/off the enhanced Samba browsing functionality (*1B names). Default is "on". Can prevent eternal machines in workgroups when WINS servers are not synchronized. Removed parameters. ------------------- domain groups domain admin users domain guest users Changes in 2.2.1 ----------------- 1). "find" command removed for smbclient. Internal code now used. 2). smbspool updates to retry connections from Michael Sweet. 3). Fix for mapping 8859-15 characters to UNICODE. 4). Changed "security=server" to try with invalid username to prevent account lockouts. 5). Fixes to allow Windows 2000 SP2 clients to join a Samba PDC. 6). Support for Windows 9x Nexus tools to allow security changes from Win9x. 7). Two locking fixes added. Samba 2.2.1 now passes the Clarion network lock tester tool for distributed databases. 8). Preliminary support added for Windows 2000 large file read/write SMBs. 9). Changed random number generator in Samba to prevent guess attacks. 10). Fixes for tdb corruption in connections.tdb and file locking brlock.tdb. smbd's clean the tdb files on startup and shutdown. 11). Fixes for default ACLs on Solaris. 12). Tidyup of password entry caching code. 13). Correct shutdowns added for send fails. Helps tdb cleanup code. 14). Prevent invalid '/' characters in workgroup names. 15). Removed more static arrays in SAMR code. 16). Client code is now UNICODE on the wire. 17). Fix 2 second timestamp resolution everywhere if dos timestamp set to yes. 18). All tdb opens now going through logging function. 19). Add pam password changing and pam restrictions code. 20). Printer driver management improvements (delete driver). 21). Fix difference between NULL security descriptors and empty security descriptors. 22). Fix SID returns for server roles. 23). Allow Windows 2000 mmc to view and set Samba share security descriptors. 24). Allow smbcontrol to forcibly disconnect a share. 25). tdb fixes for HPUX, OpenBSD and other OS's that don't have a coherent mmap/file read/write cache. 26). Fix race condition in returning create disposition for file create/open. 27). Fix NT rewriting of security descriptors to their canonical form for ACLs. 28). Fix for Samba running on top of Linux VFAT ftruncate bug. 29). Swat fixes for being run with xinetd that doesn't set the umask. 30). Fix for slow writes with Win9x Explorer clients. Emulates Microsoft TCP stack early ack specification error. 31). Changed lock & persistent tdb directory to /var/cache/samba by default on RedHat and Mandrake as they clear the /var/lock/samba directory on reboot. ----------------------------------------------------------------------------- The release notes for 2.2.0a follow : SECURITY FIX ============ This is a security bugfix release for Samba 2.2.0. This release provides the following two changes *ONLY* from the 2.2.0 release. 1). Fix for the security hole discovered by Michal Zalewski (lcamtuf@bos.bindview.com) and described in the security advisory below. 2). Fix for the hosts allow/hosts deny parameters not being honoured. No other changes are being made for this release to ensure a security fix only. For new functionality (including these security fixes) download Samba 2.2.1 when it is available. The security advisory follows : IMPORTANT: Security bugfix for Samba ------------------------------------ June 23rd 2001 Summary ------- A serious security hole has been discovered in all versions of Samba that allows an attacker to gain root access on the target machine for certain types of common Samba configuration. The immediate fix is to edit your smb.conf configuration file and remove all occurances of the macro "%m". Replacing occurances of %m with %I is probably the best solution for most sites. Details ------- A remote attacker can use a netbios name containing unix path characters which will then be substituted into the %m macro wherever it occurs in smb.conf. This can be used to cause Samba to create a log file on top of an important system file, which in turn can be used to compromise security on the server. The most commonly used configuration option that can be vulnerable to this attack is the "log file" option. The default value for this option is VARDIR/log.smbd. If the default is used then Samba is not vulnerable to this attack. The security hole occurs when a log file option like the following is used: log file = /var/log/samba/%m.log In that case the attacker can use a locally created symbolic link to overwrite any file on the system. This requires local access to the server. If your Samba configuration has something like the following: log file = /var/log/samba/%m Then the attacker could successfully compromise your server remotely as no symbolic link is required. This type of configuration is very rare. The most commonly used log file configuration containing %m is the distributed in the sample configuration file that comes with Samba: log file = /var/log/samba/log.%m in that case your machine is not vulnerable to this attack unless you happen to have a subdirectory in /var/log/samba/ which starts with the prefix "log." Credit ------ Thanks to Michal Zalewski (lcamtuf@bos.bindview.com) for finding this vulnerability. New Release ----------- While we recommend that vulnerable sites immediately change their smb.conf configuration file to prevent the attack we will also be making new releases of Samba within the next 24 hours to properly fix the problem. Please see http://www.samba.org/ for the new releases. Please report any attacks to the appropriate authority. The Samba Team security@samba.org --------------------------------------------------------------------------- The release notes for 2.2.0 follow : This is the official Samba 2.2.0 release. This version of Samba provides the following new features and enhancements. Integration between Windows oplocks and NFS file opens (IRIX and Linux 2.4 kernel only). This gives complete data and locking integrity between Windows and UNIX file access to the same data files. Ability to act as an authentication source for Windows 2000 clients as well as for NT4.x clients. Integration with the winbind daemon that provides a single sign on facility for UNIX servers in Windows 2000/NT4 networks driven by a Windows 2000/NT4 PDC. winbind is not included in this release, it currently must be obtained separately. We are committed to including winbind in a future Samba 2.2.x release. Support for native Windows 2000/NT4 printing RPCs. This includes support for automatic printer driver download. Support for server supported Access Control Lists (ACLs). This release contains support for the following filesystems: Solaris 2.6+ SGI Irix Linux Kernel with ACL patch from http://acl.bestbits.at Linux Kernel with XFS ACL support. Caldera/SCO UnixWare IBM AIX FreeBSD (with external patch) Other platforms will be supported as resources are available to test and implement the necessary modules. If you are interested in writing the support for a particular ACL filesystem, please join the samba-technical mailing list and coordinate your efforts. On PAM (Pluggable Authentication Module) based systems - better debugging messages and encrypted password users now have access control verified via PAM - Note: Authentication still uses the encrypted password database. Rewritten internal locking semantics for more robustness. This release supports full 64 bit locking semantics on all (even 32 bit) platforms. SMB locks are mapped onto POSIX locks (32 bit or 64 bit) as the underlying system allows. Conversion of various internal flat data structures to use database records for increased performance and flexibility. Support for acting as a MS-DFS (Distributed File System) server. Support for manipulating Samba shares using Windows client tools (server manager). Per share security can be set using these tools and Samba will obey the access restrictions applied. Samba profiling support (see below). Compile time option for enabling a (Virtual file system) VFS layer to allow non-disk resources to be exported as Windows filesystems (such as databases etc.). The documentation in this release has been updated and converted from Yodl to DocBook 4.1. There are many new parameters since 2.0.7 and some defaults have changed. Profiling support. ------------------ Support for collection of profile information. A shared memory area has been created which contains counters for the number of calls to and the amount of time spent in various system calls, smb transactions and nmbd activity. See the file profile.h for a complete listing of the information collected. Sample code for a samba pmda (collection agent for Performance Co-Pilot) has been included in the pcp directory. To enable the profile data collection code in samba, you must compile samba with profile data support (run configure with the --with-profiling-data option). On startup, collection of data is disabled. To begin collecting data use the smbcontrol program to turn on profiling (see the smbcontrol man page). Profile information collection can be enabled for nmbd, all smbd processes or one or more selected processes. The profiling data collected is the aggregate for all processes that have profiling enabled. With samba compiled for profile data collection, you may see a very slight degradation in performance even with profiling collection turned off. On initial tests with NetBench on an SGI Origin 200 server, this degradation was not measurable with profile collection off compared to no profile collection compiled into samba. With count profile collection enabled on all clients, the degradation was less than 2%. With full profile collection enabled on all clients, the degradation was about 8.5%. ===================================================================== If you think you have found a bug please email a report to : samba@samba.org As always, all bugs are our responsibility. Regards, The Samba Team.