Since 1.5.8: * Add NetIDMgr AFS Plug-in * "Show Tray Icon" checkbox removed from afs_config.exe * Disable DNS Registrations for the Loopback Adapter and make sure that Netbios is turned on. * A reference count leak on stat cache objects was fixed * For debugging, tread ids of writers are now tracked on locks * Corrected an incorrect lock that was being held but not freed in a rare error case * Changed trace log end of line to CR-LF so it can be read with notepad.exe * modify the buffer synchronization thread to write all dirty buffers and sleep only when there is no work to be done * improve behavior of cache manager when large numbers of temporary files are being created by multiple clients within the same directory. * do not permit dirty buffers that belong to deleted files to be written to the file server. its a waste of bandwidth * do not leak stat cache references when the file server returns VNOVNODE * afscreds: do not permit an attempt to obtain tokens if the afs service could not be started. this was causing stack overflows on Vista after resuming from a suspend Since 1.5.7: * better handling of dot directory * fs sq and fs mkm now behave as on UNIX * add license to installers * Return Invalid Parameter error for unknown InfoLevels in SMB Tran2 Search Directory. * Correctly use WSAStartup and WSACleanup within the RX library * Check that afsd_service.exe is running before performing a pioctl call. * Force AFS Shell Extension to load resource DLL using afs_shl_ext.dll as a base name. * (Wix) install afs_shl_ext_XXXX.dll and afs_creds_XXXX.dll in OpenAFS\Client\Program * Fix SMB_SET_FILE_END_OF_FILE_LENGTH * Do not panic if the maximum number of volume entries are in use and one of them can be recycled. Since 1.5.6: * Fix the code that reads the backconnnectionhostnames value so that there is not an uninitialized variable Since 1.5.4/1.5.5: * integrated logon could cause winlogin.exe to blue screen windows if it was called with a domain that does not exist on the machine. this is possible during a sysprep. * corrections to cm_buf_t handling to ensure that buffers are removed from queues before they are freed and that holds are obtained on the next buffer in a chain before releasing the current one. * do not generate MessageBox dialogs on network errors. they cause more trouble then they are worth. * move GlobalAutoMapper into a separate thread so that it does not prevent service startup if the WNetAddConnection2 call does not return. * restrict hard dead and connection timeouts to the CIFS Session Timeout value. This is being done to try to prevent virtual circuits from being destroyed prematurely. * Fix the code that writes the backconnectionhostnames value to ensure that the data buffer is written with the correct length. (there were no windows specific changes between 1.5.4 and 1.5.5) Since 1.5.3: * Corrections to the Integrated Logon functionality that permits Kerberos 5 TGTs to be communicated into the user session. The transfer is now more secure and succeeds when the user does not have read permission to the %SystemRoot%\TEMP directory. * NSIS installer updated to version 2.18 * WiX installer updated to version 2.0.4221.0 * Updates to the IFS functionality for 64-bit correctness and permit compilation. The IFS functionality works for pioctl() operations but not much else at this point. * A major re-write of the OpenAFS implementation of the CIFS Tran2 query and set functions. * Ignore the Windows CIFS client session timeout entirely. Timeout only after the AFS Hard Dead Timeout period expires. Since 1.5.2: * move headers, libraries, and samples from OpenAFS\Client to OpenAFS\SDK * remove the auto-registration of AFS IDs for foreign cells from integrated logon. this permits afslogon.dll to avoid initializing the RX library. afslogon.dll is a network provider library and as such it is loaded into all applications which perform a CreateProcessAsUser call. Initializing the RX library spawns background threads to listen for inbound packets. When the network provider is unloaded from the process, the RX library does not cleanup the threads. If they continue to execute after the library is unloaded, the process will crash. * implement inline bulk status calls. this will significantly improve the performance of directory listings. * prevent a crash when evaluating mountpoints to volumes that do not exist * new command: fs uuid [-generate] displays the current uuid and allows a new one to be generated on the fly without restarting the afs client service. * fix the 64-bit installers to properly document the install location * move help files to the proper location so they can be located by the system tray tool and the control panel. * "over quota" and "disk full" errors were not being reported to the caller. * largefile support has been added. Files greater than 31-bits can no longer be written to file servers which do not support large files. When file servers support large files, files up to 64-bits can be read or written. * cm_SyncOp could return with the input buffer unlocked upon error which would result in a panic condition. This bug was introduced in 1.4.1. * vlserver failover when freelance mode did not work. This prevented the root.afs volume from being loaded if the first vlserver could not be reached. Since 1.5.1: * A bug in the CIFS Standard Info response packet caused directories to appear as standard files. This prevented Microsoft Vista from being able to walk the AFS directory tree. * Mount points must be reported as directories in response to Query Path Info operations. * A deadlock was detected when performing "fs flushall" if the file server reports VNOVNODE. The scp->createBufferLock is already held by the current thread and there is no mechanism to propagate the knowledge. Therefore, an alternate mechanism for clearing the cache must be developed. A new function cm_RecycleSCache(scp,flags) has been extracted from cm_GetNewSCache(). This function performs the task of recycling an cm_scache_t object. When called from cm_GetNewSCache() with no flags the expectation is that there are no associated buffers that are queued to be read or written. When called from cm_Analyze() with the CM_SCACHE_RECYCLEFLAG_DESTROY_BUFFERS flag, any queued buffers will be de-queued and marked as if the operations were performed so the data can be discarded. * CM_ERROR codes were logged as "unknown" by cm_Analyze. * In response to VNOVNODE, the parent is only discarded if the current cm_scache_t is not a directory. * In the Ioctl FlushFile and FlushVolume functions, there were no checks to protect against flushing the Freelance SCache entries. * In FlushFile, the wrong cm_scache_t object was being released. * In cm_GetNewSCache, do not allow Freelance SCache entries to be recycled. Choose a new entry if cm_RecycleSCache fails. * Speed up the performance of the cache manager by not holding the smb_fid_t mutex across calls to cm_SyncOp and AFS RPCs. * Ensure that all smb_fid_t flag references are protected. * Remove a deadlock between smb_fid_t mutex and smb_rctLock introduced in 1.4.1. * Fix aklog AFSID lookup to use not send the realm name when the realm is the local realm for the cell. The PT Server doesn't strip the realm name when it is the local realm. * Treat "\\afs\*." as an alias for "\\afs\all" * Dynamically adjust the priority of server threads based upon the age of the CIFS request that is being processed. The priority is bumped one level for every 15 seconds of processing time. * The original openafs contribution mis-used the cm_GetCallback function. This function should only be called as a side effect of a call to cm_SyncOp(CM_SCACHESYNC_NEEDCALLBACK). The way it was being called results in a FetchStatus RPC being performed even when the client already has a valid callback and does so in a manner that destroys the synchronization of the threads that are calling cm_SyncOp. If nothing else this results in a significant performance penalty. * More changes to cleanup of smb_vc_t objects in order to prevent race conditions. * Reduce the amount of Power Management event logging to afsd_init.log * If the client detects that the IP address has changed, force the use of new RX connections. This enables the file server to recognize that the client has moved. * Remove a race condition and deadlock associated with cleanup of smb_vc_t objects. * Fix the ANSI filename support. One function that required it was missing the translations. Changes not present in 1.4.1 and since 1.5.0: 1.5.1 released (24 April 2006) * Add a DllMain() function to afspthread.dll. Perform cleanup of thread local storage, rx queues, critical sections, event handles, etc. This was implemented to avoid crashes in afspthread.dll when applications which load/unload the dll attempt to terminate. * Lock request behavior has been altered. As of this release a locally allocated lock will be used whenever the volume is RO or the requesting user's permissions are 'rl'. This will allow end users to execute programs from RW volumes when they do not have the 'k' privilege. Note that a recent discovery indicates that the 'k' bit is only supposed to control the ability to obtain read locks. Write locks are to be controlled by the 'w' and 'i' privilege bits. * Code has been added to enable the cache manager to be able to obtain the AFSID of the authenticated user. This is required to be able to determine when "Insert" privileges should apply. AFS considers a file to be a new file whenever the owner's AFSID matches the AFSID of the user. The current implementation relies on the name specified during the SetToken call to be correct. This will be replaced in the future with a new RPC that allows the AFSID of the authenticated user to be obtained. * A 32-bit-tools installer for use on 64-bit systems is now available. These tools are for use with 32-bit versions of Kerberos for Windows or JPSoftware's 4NT. Since 1.4.1 rc10: 1.4.1 final released (9 April 2006) * Remove the use of the "active_vcp" variable. This variable no longer serves any useful purpose and was the cause of race conditions that produced under counts of the smb_vc_t references. * Change default minidump output to include data segments * restore access to cm_IoctlGetVolumeStatus and cm_IoctlSetVolumeStatus calls for AFS pioctl operations. Still need to figure out why they are being called for SMB/CIFS IOCTL operations instead of Trans2GetFileInfo. Changes not present in 1.4.1: 1.5.0 released (16 Feb 2006) * Update build system to include the "sys_name" in the obj and dest paths. * optimize the number of calls to obtain the smb_user_t for a smb virtual circuit. * add logging of server addresses, status and capabilities when pinging the server. * prevent multiple threads from pinging the same server simultaneously. instead, threads block and then use the result of the ping that was already taking place. * Add registry values to allow the defaults for daemon checks to be altered at startup. Log values to afsd_init.log. daemonCheckDownInterval daemonCheckUpInterval daemonCheckVolInterval daemonCheckCBInterval daemonCheckLockInterval daemonCheckTokenInterval * Add EventLog messages for transitions in fs crypt state. * Byte range locking (when locks will be obtained from the is still under discussion) * 64-bit Windows operating systems now supported (XP SP2 64-bit, 2003 SP1 64-bit, 2003 R2 64-bit) This is a native 64-bit implementation of OpenAFS for Windows. There is currently no 64-bit version of KFW and therefore there is no (easy) method for obtaining AFS credentials. 32-bit KFW 3.0 can be used with 32-bit OAFW libraries to obtain AFS tokens but there is not for the feint of heart. * A faster implementation of the fcrypt algorithms improves performance. * The afsd_service.exe now supplies Event Log Message Text. The event log no longer generates warning text due to lack of message configuration. * When afs servers are unreachable and network stack returns a WSAEHOSTUNREACHABLE error, the AFS client will immediately mark the attempted server as being down. This allows for very fast response to the calling application. This change has a pronounced improvement when the Windows Explorer is used on disconnected mobile computers. * Added DebugOutputString debugging of the RX library Since 1.4.1 rc9: 1.4.1 rc10 released (10 March 2006) * Fix the rx-lwp implementation to randomly generate rx call identifiers which are supposed to be unique at a given point in time. This affects some of the command line tools used for debugging but not the AFS Client Service itself which uses the rx-pthreads implementation. * xstats_fs_test.exe and xstats_cm_test.exe are now built for Windows although they are not distributed * don't generate an exception when logging unexpected SMB packets * the data structures used by cm_IoctlGetVolumeStatus and cm_IoctlSetVolumeStatus are not compatible with the CIFS Get/Set File Information calls so don't bother executing them. Since 1.4.1 rc8: * Fix data written to registry as part of BackConnectionHostnames data value * Fix initialization bug when allocating cm_server_t objects that would cause servers to appear to be down after each allocation or renewal. Server would appear up after the next check servers cycle. Since 1.4.1 rc7: * Windows will return WSAECONNRESET to the next receive packet operation on a socket if an ICMP packet is received in response to a packet that was sent and could not be delivered because the port was unreachable. We have to treat this as WSAEWOULDBLOCK so that we can retry the select() check and not mark the connection as bad. Since 1.4.1 rc6: 1.4.1 rc7 released (14 Feb 2006) * The client manager maintains a least recently used list of all the ACLs. If an ACL is already the most recently used do not bother to remove it from the list and place it on the front. * As part of the process of adding a new server, set the server is down flag and then perform a ping. If the server is up, the flag will be reset. If the server is down, the client will not timeout unnecessarily while attempting to perform real work. * If a Mountpoint String is the empty string, return PATH NOT FOUND. * Modify behavior of the Network Provider to avoid querying the profile location if integrated logon is known to be disabled. * Correct behavior of 'LogoffPreserveTokens'. When set, tokens will always be preserved regardless of whether or not integrated logon was used to obtain tokens. When unset, tokens will be destroyed regardless of whether integrated logon was used to obtain the tokens unless the profile is stored in AFS. * Disable LogoffTransferToken functionality. The SMB V3 Logoff message is being delivered even when the user is not logging off of the computer. * Fix a deadlock condition introduced in rc6. * Cell names are case-insensitive. Since the founding of OpenAFS there has been a bug that treated "cell", "Cell", and "CELL" as different cells. This would result in what appeared to be random disappearance of user tokens or a failure to authenticate even when tokens were listed by the "tokens" command. Since 1.4.1 rc5: 1.4.1 rc6 released (2 Feb 2006) * Additional auditing of the smb code revealed that smb ioctl operations were failing to free smb_fid_t objects * The File Identifiers assigned to smb_fid_t objects could be given the value 65535 which is 0xFFFF which is also the INVALID_HANDLE value. Both 0 and 65535 are now treated as reserved values. * Audited all assignments to fields and ensured that they are protected by obtaining the relevant mutex object. * Re-wrote the VNOVNODE handling to avoid a potential deadlock if both the current cm_scache_t object and its parent are both returning VNOVNODE. * Removed all the logic associated with the 'dead_vcp' variable which must have been added for debugging because its used was never thread safe and it truly served no purpose. Since 1.4.1 rc4: 1.4.1 rc5 released (18 Jan 2006) * Check access permissions to the file before the file is truncated. * More improvements to the handling of SMB Virtual Circuits when SMB sessions are closed. * Correct a race condition introduced in rc4 that could result in a crash of afsd_service.exe. Since 1.4.1 rc3: 1.4.1 rc4 released (11 Jan 2006) * Properly handle pre-mature SMB session closures. File handles, tree connections, and user sessions are now freed when the virtual circuit is closed. * smb_username_t and smb_user_t objects are now properly reference counted and freed as appropriate. * disable to use of AFS file locks. byte range locking is still implemented but all locks are managed locally. This prevents multiple processes from editing the same file on the same machine but it does prevent multiple processes on separate machines from modifying the file. Since 1.4.1 rc2: 1.4.1 RC3 released (4 Jan 2006) * A fix to "fs setserverprefs -vlserver". Multiple calls with the same server parameter would result in a panic condition if the server had not already been contacted by the AFS client service. * Better warnings are written to the afsd.log file when the Windows RPC Protocols are not properly configured as is often the case on Windows 2000. * fix the procmgmt library to restore C RTL signal handlers when it is being detached from the process prior to process termination. Since 1.4.1 rc1: 1.4.1 RC2 released (30 Nov 2005) * close a lock leak in the rx library that could be triggered while processing aborts * prevent removal of drive mappings in response to afscreds.exe -M * add logic to process VNOVNODE in cm_Analyze. Force re-evaluation of symlink strings and flush the stat cache entry. * prevent server objects from being freed if user preferences are set. * Update WIX support to 2.0.2419.0 * Release all locks on the server at service shutdown. * A down server should be marked up as long as it responds to the client. It doesn't matter if the server returned an error as long as the error is something other than VRESTARTING. If there is such an error, all connections on that server should be marked for replacement. * Change the check "up" servers period from once per hour to once every ten minutes. This matches the behavior of the Unix cache manager. Post 1.4.0 revisions: 1.4.1 RC1 released (21 Oct 2005) * Byte Range Locking support has been added. Architectural documentation is located within src/WINNT/afsd/cm_vnodeops.c. Best efforts are made to enforce Windows mandatory locking model using locally managed byte range locks with full file locks obtained from the file server. Read-only volumes provide the user with an implied locking privilege. Read-write volumes require that a user be granted the locking privilege in order for a lock to be obtained. As most Windows applications use Shared file access modes, they require the ability to obtain locks in order to access files. * Implement error translation functions to convert Universal Error Codes output by modern servers to local errno and winsock error values. This fixes the error message problems using pioctl() calls from fs.exe and the AFS Shell Extension. Since 1.4.0 rc8: 1.4.0 final tagged (20 Oct 2005); released (31 Oct 2005) * Allow the AFS Client Service to set the firewall configuration by retrying until after Windows determines the boot period is over. * Do not attempt to configure the firewall on Windows 2000, XP pre-SP2, or 2003 pre-SP1 * Detect IP address changes from within the AFS Client Service for the purpose of checking down servers sooner * If the file server or vldb server report RXKADUNKNOWNKEY, return SEC_E_NO_KERB_KEY to Windows. This provides an indication to the user that there is a Kerberos key problem. Previously the user would receive no feedback when there was something wrong. * Fix the large integer library support to properly handle values greater than 32-bits Since 1.4.0 rc7: 1.4.0 rc8 released (15 Oct 2005) * Updated CellServDB * Fixed file name pattern matching. Question marks can match nothing if found at the end of a component. Since 1.4.0 rc6: 1.4.0 rc7 released (8 Oct 2005) * Kerberos 5 ticket lifetimes should adhere to KFW Leash lifetimes * The MSI installer now has a new Product ID for each build. This is to allow for automated upgrades. The Upgrade ID is remaining constant. * Volumes that were cached and then subsequently were salvaged, moved or otherwise taken temporarily offline (as opposed to being busy) would become unreachable. A distinction is now made between a volume being offline and a server being down. Since 1.4.0 rc5: 1.4.0 rc6 released (2 Oct 2005) * Fixed several AFS Shell Extension issues: - Checking Server Status would only work if a specific cell was specified. - If servers were down, the Server Down dialog would write to invalid memory and cause explorer.exe to crash - Default Push Buttons were not specified for many dialogs - The extension would be unloaded by the Explorer Shell and never be reloaded under some circumstances. * Fixed the AFS System Tray menu to disappear if another Window was selected before a menu item was selected * Added volume owner and group information to "fs examine" output * Added fs and registry support for enabling/disabling/clearing rx statistics gathering. Since 1.4.0 rc4: 1.4.0 rc5 released (25 Sep 2005) * New Product Code GUIDs issues for 1.4 and 1.5 branches. Separate GUIDs for each platform. * Documentation directory structure and default installation rules for MSI * New OpenAFS for Windows HTML Release Notes installed as part of the documentation set. * Add thread id to rx debugging messages * When all servers are offline, return a bad network path error immediately. This is necessary to allow Explorer to do the right thing and not hang. The background daemon thread will check the down servers every 30 seconds to see if they are back up. Since 1.4.0 rc3: 1.4.0 rc4 released (14 Sep 2005) * The AFSCache file has been modified to store both the serial number of the volume on which the file resides and the SID of the local machine. If either change, a new UUID is generated. * add "fs flushall" command that forces all data buffers to be flushed. Since 1.4.0 rc2: 1.4.0 rc3 released (4 Sep 2005) * add support for '/' instead of '\' in pioctl() calls * Apply AFS Client Admins group protect to AFS Shell Extension * Add support for \\afs\ to most AFS Shell Extension commands except the symlink methods. * when installing the Microsoft Loopback Adapter, enable MS Client for Networks and prevent an install failure by not calling CoInitialize twice in the same thread. * reload cell vldb values from the CellServDB every two hours in case it changes * When updating cell information from DNS, be sure to set a new timeout. * Add support to allow use of \\AFS\ where is either a mount point or symlink. As is normally treated as a share name, we transform it into \\AFS\all\ for processing. * Init 'code' to prevent false errors when integrated logon is disabled and the service is not running Since 1.4.0 rc1: 1.4.0 rc2 released (28 Aug 2005) * Removed trace log messages that were hampering performance. * Fixed a deadlock that was being triggered by editing Word documents stored within AFS with WinWord 2003. * Bit 3 of the TraceOption registry value is now used to set the default for "fs trace" in the non-Debug builds. The new default is off for release builds and on for debug builds. * Bit 2 of the TraceOption registry value can be used to turn on real-time output of debug log entries to the Windows Debug Output monitor interface. This data can be viewed with tools such as Sysinternal's DbgView. Since 1.3.87: 1.4.0 rc1 released (17 Aug 2005) * When the cache manager reports ALLBUSY or ALLOFFLINE for a resource we should not be returning status codes such as Network Busy or Remote Host Down because these errors will imply that the AFS Client Service is Busy or Down and that is simply not the case. Instead we will return Bad Network Path as the path is temporarily not available. Instead of returning Sharing Paused when there is a timeout error, return Timeout. Once again, the AFS Client Service is not paused. * afscreds.exe would display an Obtain Creds dialog when the expired credentials reminder was triggered even if there was no network path to the KDC. This is prevented by adding KDC probe logic to the reminder thread. * afscreds.exe would display expired tokens no differently than unexpired ones. This would make it difficult for the user to distiguish when the tokens were expired. For the English build added a new resource string "(expired) that is displayed instead of the expiration time. Since 1.3.86: * "fs wscell" when executed in freelance mode will return the name of the cell configured in the registry. The root.afs volume is not loaded from this cell, but it is used for the default for aklog and integrated login. * "fs mkmount, fs rmmount, symlink make, symlink remove" will no longer work on \\AFS\all when freelance is being used unless the user is a member of the "AFS Client Admins" Windows Security group. * some more checks performed during persistent cache validation. Since 1.3.85: * Optimize calls to cm_CheckServer from cm_Analyze. Only check down servers for the current cell not all cells. * If the scache LRU list becomes corrupted, the AFS Client Service might enter an infinite loop at startup. Detect the corruption and discard the cache contents in this case. * Fixed the Explorer Shell's remove mountpoint functionality. * Fixed a deadlock caused by the holder of cm_aclLock attempting to obtain a mutex lock on a cm_scache_t object whose lock is held by a thread attempting to obtain the cm_aclLock. Since 1.3.84: * Really fixed DNS AFSDB queries to ensure that "csail" cannot be misinterpretted as "csail.mit.edu" when the resolver is configured to append ".mit.edu" to failed DNS queries. * Added a new registry key, "LogoffPreserveTokens" (see registry.txt), that can be used to force the preservation of user tokens upon logout. * Update the NSIS install scripts to use NSIS 2.07. This release adds recommended installation categories: AFS Client, AFS Administrator, AFS Server, AFS Development Kit. Each category includes a different default subset of the OpenAFS components. The OpenAFS logo is now associated with the NSIS uninstall entry in the Add/Remove Programs control panel. * The user name associated with AFS tokens when obtained with integrated login, the afs systray tool, or aklog will always include the full Kerberos 5 user principal name regardless of whether or not the cell is local to the realm. * Modify integrated login so that it does not enter an infinite loop if the service is not set to auto start. * Added asetkey.exe used to set a Kerberos 5 key for use by the AFS server daemons * Added uninstall.exe to Wix installation * More modifications to algorithms used to wake sleeping threads. Since 1.3.83: * Changes to the algorithms used to wake threads when they are put to sleep because of conflicts over buffer operations. Since 1.3.82: * The OpenAFS integrated logon obtains Kerberos 5 tickets as part of the process of producing AFS tokens. The tokens are stored within the AFS Client Service but the Kerberos 5 tickets have been discarded. New functionality has been added to temporarily copy the tickets to a file ccache during the short window between the NPLogonNotify and WinLogon Logon Event. The Logon Event handler starts a process as user, afscpcc.exe, that copies the tickets into the default ccache. The file ccache is then destroyed by the event handler. * During synchronization operations on stat cache entries, if threads are forced to sleep it was possible that the threads would not be woken under heavy load. * Enforce the delete on close flag specified by the NTCreateX() operation. * A race condition in the rx library was fixed that resulted in a deadlock in rx_NewCall when the RX_CONN_MAKECALL_WAITING flag was cleared when threads were still waiting to use the connection. Also, fixed a potential case in which the connection could be destroyed while threads were waiting to use it. * The DNLC freelist has been seen to become corrupted with still active entries being stored on the freelist. Changes were made to perform a better job of cleaning entries before placing them onto the freelist; marking them with the correct magic value when purging the list; and allowing the list to be purged on startup if the cache validation fails. * Windows Crash Reporting does not get triggered for afsd_service.exe because it provides its own top level exception handler. This patch places an explicit call to ReportCrash() on platforms which support it. (XP and above.) If you configure Crash Reporting via AD Policy to capture crash reports within the domain, then you will receive this output. * Generate MiniDumps independent of the Windows Crash Reporting. (a) If an exception occurs,a minidump will be generated at the path %TEMP%\afsd.dmp. The type of minidump defaults to Normal but can be set to any other type via use of the registry. [HKLM\SOFTWARE\OpenAFS\Client] MiniDumpType (DWORD) (b) MiniDumps can be generated at any time using the "fs minidump" command. This allows you to generate a minidump without stopping the process or even requiring the use of a debugger on the system. * an RX connection which reports bad ticket now treats it the same way the expired ticket is treated. The ticket is removed from the connection and a new anonymous connection is established. * fs memdump now requires that the caller be in the AFS Client Admins group * additional debugging information is provided in cm_Analyze when the error code is ignored. * Fix a regression introduced into the pioctl() client code which will cause a crash in winlogon.exe, explorer.exe and fs.exe if MIT KFW is not installed. (1.3.82a) * Remove AFS Gateway option from OpenAFS Control Panel (1.3.82a) Since 1.3.81: * Fix a race condition in cm_EndCallbackGrantingCall() that could leave 'nrevp' pointing to freed memory. In the process, optimize the processing to ensure that the applications monitoring the status of the stat cache entry are only notified at most once. * Conditionalize access to the Explorer Shell AFS->Mount Point ->Remove menu item. Disable the item if the selected item(s) are not mount points. * Activate AFS RPC (RX) Free Packet Queues stored in Thread Local Storage. This eliminates thread contention on the global RX free packet queue. This should improve performance on multi-CPU systems. * Fix the IP address filtering code to properly load/unload the IPHelper DLL so that Windows XP/2003 and beyond systems do not have to manually probe the registry. * CleanupACLEnt() was not being called consistently with the cm_scache_t object referred to by the back pointer mutex locked. This could in very rare conditions lead to an invalid memory access. * Added a script command to the msi installer "afs_replace" which can be used to replace one version of OpenAFS with another without requiring an uninstall and reinstall if the installed msi is no longer in its original location. * Apparently the problem with multi-domain forests with cross- realm trusts to non-Windows realms was not entirely solved. The authentication to the AFS SMB service failed because the wrong name was being used. Using ASU as an example, the authentication was being performed with the name "QAAD\user" (an account in the forest root) and not "user@ASU.EDU (the MIT Kerberos principal used to login with) The solution was to add an additional dependency on KFW in order or to be able to easily obtain the client principal name stored in the MSLSA ccache TGT. This information is used in two locations: - the pioctl() function - a new WinLogon Event Handler for the "logon" event. The pioctl function will now be able to use the correct name when calling WNetAddConnection2() and the "logon" event handler will now be able to call WNetAddConnection2(). The hope is that the "logon" event handler will be called before the profile is loaded but I have not guarrantee that will happen. Since 1.3.80: * Fixed a locking error in cm_TryBulkStat() which had the potential of deadlocking the system for the length of time it takes to perform a bulk status fetch operation. * Replaced time conversion code (UnixTime <-> FILETIME) to be completely arithmetic instead of relying on a bizarre algorithm involving a variety of C RTL time functions. This has the side effect that UnixTime and FILETIME which are both stored in UTC are interpretted as UTC throughout the year. Windows will apply the same localization to AFS as it does to NTFS. Applications which rely on the ability to sync files between the two file systems will no longer see the timestamps of files in AFS change an hour relative to the files stored in NTFS or Windows based backup devices. * Fixed a invalid memory access under a bizarre circumstance. Windows will allow a physical mass media device to be installed via Plug N Play to the system and will assign it the lowest available drive letter. This is true even if the drive letter is currently assigned in the user session to a network device via NET USE (or its equivalent.) When this happens, queries sent to the CIFS server will contain invalid data. This invalid data was not being caught by the AFS Client Service and was resulting in a crash when Freelance mode was in use. * Fixed a reference count error when registering callbacks on a stat cache object if the callback was already registered * Add a case to cm_Analyze() in order to handle the case where cm_GetConnByMServers() returns CM_ERROR_NOSUCHVOLUME because the server list for the volume is empty. In this case, force an update of the volume info and retry. * Insert a missing cm_EndCallbackGrantingCall() which could result in threads waiting for a callback to complete to never be woken up. * In the persistent cache, there is a maximum number of volume entries. Allow volume entries to be reused if the maximum number have been allocated and their reference count is zero. * If we already have a dead virtual connection object, don't ignore the fact that additional dead vc objects must be taken care of. * Removed a deadlock condition introduced in the summer of 2004. Do not hold mx locks around calls to RX functions including rx_NewCall(). That is what reference counts on the rx_connection object are for. * Fixed an initialization error in afslogon.dll which could result in random behavior including a failure to terminate the NPLogon function. (1.3.80b) * Fixed an error preventing the use of SMB authentication on Windows 2000. (1.3.80a) Since 1.3.77: * Updated CellServDB to Public CellServDB 16 Mar 2005 * Fixed DNS AFSDB queries to ensure that "csail" cannot be misinterpretted as "csail.mit.edu" when the resolver is configured to append ".mit.edu" to failed DNS queries. * Fixed another case in which the client would replace connections to the host when it was not necessary. In this case the situation would occur if cryptall was on and the connections were unauthenticated due to lack of an appropriate token. * OpenAFS for Windows has failed to work at sites which are utilizing a cross-realm trust between an MIT/Heimdal realm and a multi-domain Windows forest when the workstation being accessed is not located in the root domain. This is caused by a bug in the workstation which was triggered after the introduction of Windows 2003 Server. When the bug is triggered, the workstation attempts to authenticate users to afsd_service.exe by contacting the Domain Controller instead of using the LSA loopback authentication mechanism. One of the reasons this bug occurs is because the workstation does not have a reliable way of knowing that the service whose netbios name is "AFS" is located on the workstation. This will be fixed starting in Longhorn Beta 1 by Microsoft. The "BackConnectionHostNames" registry value will be used to indicate that the authentications to that service name should be performed using the loopback authentication mechanism. In the meantime, when Logon Caching is enabled, we can force afsd_service.exe to authenticate using the logon cache before contacting the Domain Controller. This will work with both password and smart card based logons. * The allDown logic in cm_ConnByMServers() was wrong. The allDown flag should not be cleared if a volume's server reference is marked as "offline". In the case where all of the volume's servers are either "down" or the volumes are "offline", we want cm_Analyze() to process the condition as CM_ERROR_ALLOFFLINE instead of as CM_ERROR_TIMEDOUT. In fact, CM_ERROR_TIMEDOUT should never occur in practice. In the case of CM_ERROR_ALLOFFLINE, cm_Analyze() will sleep for 5 seconds, clear the server down and volume busy flags, and then force an update from the VLDB. This allows the client to update the location of a volume if the reason for it being marked offline is because it is being moved. Calls to cm_ConnByMServers() will be retried either until success or the RDRtimeout period is reached. * Correct the Power Management code behavior in response to Standby, Suspend, and Shutdown events. Instead of flushing the buffers associated with the mounted SMB submounts, simply write all buffers which are marked dirty. * Added support for "TheseCells" to afslogon.dll. "TheseCells" provides a list of cells other than the default cell for which tokens should be obtained using the default Kerberos principal. This functionality is logon domain specific and is only available when using KFW for authentication. * Fixed FindNext Invalid Handle error caused by over agressive attempts at garbage collecting dirSearch entries when the dirSearch ID wraps from the maximum value to 1. * Add support for registry defined server preferences for VLDB and File servers. See registry.txt for details. * Increased default cache size to 96MB and default number of cache entries to 10,000. * Fixed refCount leaks related to directory lookups and pioctl calls. * Callbacks revoked during a race condition with an attempt to obtain the same callback no longer result in an inaccessible stat cache entry. * New command line tool: afsdacl : Set or reset the DACL to allow starting or stopping the afsd service by any ordinary user. Usage : afsdacl [-set | -reset] [-show] -set : Sets the DACL -reset : Reset the DACL -show : Show current DACL (SDSF) * IP addresses are no longer queried once at startup. Instead IP addresses are obtained as needed. Loopback adapter addresses are no longer published to the server. * Pay attention to the MIT KFW registry configuration for automatic importation of MSLSA credentials. (SOFTWARE\MIT\Leash32,MsLsaImport) * Fix (once again) case-sensitive comparisons which was apparently broken in 1.3.72. * Activate support for vos listvol -format * Population of the "AFS Client Admins" group failed on non-English versions of Windows because the name of the "Administrators" group is localized. Now we lookup the name of the group by using the Administrators Group Alias Relative ID. * Multiple cell token acquisition within afscreds.exe was broken in the case of Kerberos 5 cross realm authentication. Instead of contacting the KDC associated with the cell's realm, afscreds would obtain a token from the KDC of the user's realm. This would result in "invalid kvno errors" while authenticating to the AFS servers. Unauthenticated access would work. The symptoms would vary based upon whether or not the VLDB servers had been contacted using unauthenticated connections prior to the user obtaining tokens. * The list of ACL entries was becoming corrupted. It appears as if an ACL when it expires was not being appropriately cleaned up. In fact, it was left in the list of ACLs associated with the scache entry. * Changed the default @sys name list to "x86_win32 i386_w2k i386_nt40" for 32-bit x86 systems. The default for itanium will be "ia64_win64" and "amd64_win64" for amd 64-bit processors. * When executing executables, Windows provides a mechanisms by which the normal search for DLLs can be bypassed. If a file foo.exe is being executed and there exists a file or directory "foo.exe.local" (the contents are ignored if a file), then Windows will search for DLLs first in the "foo.exe.local" directory and second in the directory in which the "foo.exe" file is located. Previous releases of OAFW would improperly return STATUS_NOT_A_DIRECTORY instead of the expected STATUS_OBJECT_PATH_NOT_FOUND. This would cause the Windows SMB client to terminate the search for the DLL causing the execution of the application to fail. * Rework the reference counting of smb_vc_t objects. The references stored in the waiting locks were not counted. This could result in an assertion if the reference count drops to zero. * "fs wscell" returns "Freelance.Local.Root" for the workstation cell when running in freelance mode. * Added support for persistent caching of file contents, stat entries, volume data, cell data, and name lookup data. When the registry value, "NonPersistentCaching", is not defined or set to 0 the file specified by "CachePath" becomes a persistent cache file. The size of the cache file is computed at run time. It has a maximum size of approximately 1.2GB. The contents of the file will be validated according to the rules specified by the "ValidateCache" registry value. * Added support for UUIDs. UUIDs are kept for as long as the cache file is intact. * Added cmdebug.exe and support cache manager debugging callback interfaces in afsd_service.exe. Usage: cmdebug -servers [-port ] [-long] [-addrs] [-cache] [-help] Where: -long print all info -addrs print only host interfaces -cache print only cache configuration * Symlinks to \\AFS\[all\]... will now be treated the same as symlinks to /afs/.... However, please use /afs/... as otherwise the symlinks won't work on Unix. * Correct a problem with local CellID allocation for cells whose server list is obtained via DNS instead of a CellServDB file. If the DNS information expires the CellID assigned to the entry will be changed. This causes all of the cm_scache_t objects which refer to the old cellID number to become useless. Attempts to access files or directories with cm_scache_t objects using the old cellID will fail since the server list cannot be obtained. * Correct deadlock condition in cm_EndCallbackGrantingCall which can be triggered if the volume referenced by the cm_scache_t object is offline. * The AFS Service needs to respond to SERVICE_ACCEPT_SHUTDOWN messages in addition to SERVICE_ACCEPT_STOP. * Move RPC shutdown until after the SMB and RX shutdown procedures complete. Block until RPC shutdown is complete. * Modify afslogon.dll (integrated logon) to wait for service if its state is START_PENDING. If the timeout period occurs, reset to the retry interval and not the sleep interval. * When renewing the server list for a cell obtained via DNS AFSDB records, the cm_cell_t entry must be removed from the list of all cells. Otherwise, the list of cells will be corrupted. * In the dcache and scache modules, use the cm_scache_t dataVersion instead of the cm_fakeDirVersion. * Synchronize fs.c with the unix version. * The variable used to determine whether a file or virtual memory mapped cache is used was not properly initialized to a default value. If the registry setting "NonPersistentCaching" was not set, the choice would be random. Properly initialized to be "file". * The memory mapped view was never unmapped before closing the file at service shutdown. This is now properly cleaned up. * Default location of Cache file is now %TEMP%\AFSCache Since 1.3.76: * A bug affecting new installations of 1.3.75/76 would result in the creating of incorrect mountpoints in the freelance root.afs volume for the default cell. If "fs \\afs\all\" lists a volume name of "root" instead of "root.cell", you have been affected by the bug. To correct the problem, execute the following commands: fs rmmount \\afs\all\ fs rmmount \\afs\all\. fs mkmount \\afs\all\ root.cell fs mkmount \\afs\all\. root.cell -rw Since 1.3.75: * A bug has been fixed in the auto-generation of Freelance root.afs symlinks which produced random entries in the \\AFS\all directory. * Support has been added for multi-homed servers Since 1.3.74: * Added a new registry value, "StoreAnsiFilenames", which can be used to force the use of ANSI character sets instead of OEM Code Pages. This feature is useful when users require the ability to create filenames with 8-bit characters and need to access the files from both Latin-1 based Unix systems as well as from Windows. Activation of this feature will prevent access to files stored with 8-bit OEM characters. * Shutdown all SMB threads in a synchronized manner when stopping the service. * There is currently a maximum cache size of 1.3GB. The limit is imposed by the largest contiguous block of unused memory within the 2GB process space which can be assigned to the memory mapped file. Unfortunately, when the executable digital signature verification code is activated Windows sees fit to further segment the process memory which in turn reduces the size of the maximum cache file to less then 800MB. If larger cache sizes are desired, a new registry value should be set: HKLM\SOFTWARE\OpenAFS\Client (DWORD) "VerifyServiceSignature" = 0x0 Setting this value will disable the runtime verification of digital signatures on afsd_service.exe and the afs dlls which it loads. It will not disable the the version number check on those same files. The signature verification is not a security messure and is only meant to enhance the ability to afsd_service.exe to detect potential destablizing mixtures of DLLs from incompatible distributions. Added code to auto-disable the signature verification check if the desired cache size is greater then 700MB. * Windows' WinTrustVerify(WIN_SPUB_ACTION_PUBLISHED_SOFTWARE) is used to verify the validity of the afsd_service.exe binary as well as each of the AFS DLLs loaded by the service. Not only must the digital signature be valid but the signatures of the DLL must be signed by the same entity as the service. * Implement new functions: cm_freelanceMountPointExists and cm_freelanceSymlinkExists. Use them along with other validity checks in cm_freelanceAddMount and cm_freelanceAddSymlink to ensure that name collisions do not occur and that empty strings are not valid file names. A symlink may not have a name which would resolve to a valid cell name. Doing so would prevent access to the cell. * Add missing cm_HoldSCacheNoLock call to Freelance mount point re-initialization code. The reference counts of the fake root.afs volume scache object(s) would become invalid when the mount point or symlink lists were altered. * Add registry entries to provide mappings from the afsdsbmt.ini to the new locations for applications which count on the use of the old Profile file APIs. These apps are likely to fail if the user does not have administrator privileges and the registry is locked down. * The afs_config.exe submounts dialog had two errors. First, attempts to remove entries failed because the registry key was being opened without KEY_WRITE privileges. Second, when editing a submount entry, changing the name would add a new key and leave the original one in place. Now the original submount will be removed if its name is changed. * In recent months there have been several incidents in which users have experienced problems starting or accessing afsd_service.exe and after significant effort has been spent it has turned out that they have two versions of AFS on the machine or an inconsistent set of DLLs. Code has now been added to afsd_service.exe which will walk the list of modules loaded by afsd_service.exe and validate that the version of the AFS DLLs matches the version of the afsd_service.exe executable. If they do not match the service will not start. * When Freelance mode is enabled and there is no registry key HKLM\SOFTWARE\OpenAFS\Client\Freelance, afsd_service.exe will attempt to import the afs_freelance.ini file contents. If the file does not exist, it was creating a dummy file with a r/o and r/w entry for the default cell and then importing those values. This process has been changed. The temporary file is no longer created. Also, both the OpenAFS Client install directory as well as %WINDIR% are checked for previous afs_freelance.ini files. * Added support for VL_GetEntryByNameN(). Still need to add support for VL_GetEntryByNameU() for multi-homed support. * Fix a deadlock situation in afscreds.exe when canceling an auto-generated Obtain Tokens dialog Since 1.3.72/73: * Fix the locking of objects during Directory Searches in the SMB/CIFS server. The failure to properly lock the reference counts was resulting in the premature freeing of smb_dirSearch_t objects while they were still in use by the SMB/CIFS client. This does not solve the "Invalid Handle" problem. * Fix Find Cell By Name pioctl call to return a valid cell name for the Freelance fake root.afs volume. "Freelance.Local.Root". * Fix the Explorer Shell Extension Symlinks->Add operation. The dialog template was missing and the link destination string was too short. * Add support for symlinks to Freelance root.afs volume Stored at HKLM\SOFTWARE\OpenAFS\Client\Freelance\Symlinks = ":." Use symlink.exe to create, list, or remove * Remove the fallback to the use of KFW's KRB4 library when obtaining tokens. We never obtain KRB4 tickets. * Fix AFS Client Configuration Control Panel to support new SysName protocol. * Fix a bug in afsd_service.exe which could result in the SysName not being read from the registry. Since 1.3.71: * Add code to block the issuance of AFS tokens by aklog.exe or afscreds.exe when the Kerberos 5 principal name contains a dot. * Modify the IsAdmin() function to always treat the local SYSTEM account as an AFS client administrator. Affects fs.exe and afs_config.exe. * Modify the internal handling of Quota Exceeded errors * Upgrade all reference count fields in the Windows cache manager and the osi library to use unsigned long instead of signed short. A similar fix has been applied to the afs rpc (rx) library. * fix the Windows cache manager to prevent it from replacing the rx_connection object associated with the cm_conn_t object on each and every operation if "fs crypt" was set. This explains the dramatic performance difference when crypt is used vs clear. The problem: 'cryptall', a boolean flag indicating whether or not "fs crypt" is set, was being compared to the rx_connection cryptlevel which is either rxkad_clear:0 or rxkad_crypt:2. 1 != 2 and therefore the rx_connection was always destroyed and replaced on each and every operation. Lock the cm_conn_t object around every call to RXAFS_xxxx functions. It is not safe for the cm_conn_t object to not be locked because rx_DestroyConnection might be called from another thread if: - the user's tokens have changed or expired - the crypt mode has changed This fix appears to have also taken care of the problems associated with Overlapped Writes resulting in Delayed Write errors. * fix NSIS installer's AdminGroup.exe to properly create and remove groups when given -create or -remove. The string comparison test was wrong. * fs sysname now accepts a list of sysname values * added a new registry value HKLM\SOFTWARE\OpenAFS\Client "IoctlDebug" DWORD which when set to a non-zero value will cause error message text to be output to stderr from the pioctl() routine. Useful in debugging failures of fs.exe, tokens.exe, etc. * added a test to the power management code to only perform a flush operation if there is at least one network adapter which is not a loopback adapter. * Fix bug in loading of registry value HKLM\SOFTWARE\OpenAFS\Client "EnableKFW". This value will not be read if the key HKCU\SOFTWARE\OpenAFS\Client exists; even if the "EnableKFW" value under that key does not. * provide mechanisms to force the use of krb524d for Kerberos 5 ticket to AFS token conversion. For afslogon.dll and afscreds.exe there is a new registry value "Use524" and for aklog.exe a new command line parameter "-m". * Fix the pattern matching algorithm to properly match patterns ending with a '*'. * smb_ReceiveCoreRename() was factored to produce smb_Rename() which is used by both the original function and the new smb_ReceiveNTRename(). smb_ReceiveNTRename() supports the creation of HardLinks in addition to Renaming. smb_Link() is a new function which creates HardLinks via cm_Link(). cm_Link() is a new vnodeops function which creates links using RXAFS_Link(). smb_ReceiveNTRename() does not support the File Copy and Move Cluster Information operations described in its interface. ReceiveNTRename is under documented in CIFS-TR-1p00_FINAL.pdf. * When opening files via symlinks, we should follow the symlinks until we reach the actual file stat cache entry. The stat cache entry of the file should then be stored in the FID instead of stat scache entry of the symlink. * return bad operation errors for all unimplemented functions even if we do not know the functions exist. * Log bad packets and unknown operation packets to the trace log * Map CM_ERROR_BADOP to STATUS_NOT_SUPPORTED instead of 0xC09820FF * Update list of known CIFS operations to include all those listed in CIFS-TR-1p00_FINAL.pdf. * Modify the handling of HKLM\SOFTWARE\OpenAFS\Client\Submounts to support the REG_EXPAND_SZ type. Since 1.3.70: * A new Windows authorization group "AFS Client Admins" is now created and populated with the members of the "Administrators" group. The group is used to determine which accounts on the machine may be used to modify the AFS Client Configuration via the UI and command line tools. afs_config.exe, fs.exe, * Modify the WinLogon Logoff Event Handler to query NT4 domain controllers for the remote profile path if Active Directory services are not available. * Fix aklog.exe to not add the AFS ID to the username * PTS registration of new users to foreign cells has been added to afscreds.exe * The cm_Daemon thread is used to perform checks for down servers, up servers, volumes, callback expirations, lock maintenance and token expiration. Due to a gaff in larger integer division the thread never performed any work. Instead the current time computation would always be less then the trigger times. This had an adverse affect on the client's ability to maintain communication with servers, keep volumes up to date, and flush user tokens and acls when they have expired. This was broken when the 1.3 branch was modified to support VC7 which no longer included largeint.lib * An initialization problem with the Freelance code was detected while fixing the callbackRequest. The cm_rootSCachep object is obtained during afsd_InitDaemons() but the callback information is incomplete. The callback information will not be obtained until cm_MergeStatus is called from within cm_GetCallback. Unfortunately, cm_SyncOp did not properly test for the conditions under which the callback information must be obtained. * Reports have been filed indicating that callbacks were being lost. An examination of the code indicated that the cm_server_t objects were not being properly reference counted by the cm_scache_t and cm_callbackRequest_t objects. In particular, the cm_server_t objects may have been freed from beneath the cm_conn_t objects. All of the reference counting is now done via the functions: cm_GetServer cm_GetServerNoLock cm_PutServer cm_PutServerNoLock this improves the ability to track the referrals. Each cm_BeginCallbackGranting Call now allocates a reference to the cm_server_t. The cm_EndCallbackGrantingCall either frees the reference or transfers it to the cm_scache_t cbServerp field. These are then appropriately tracked through the cm_Analyze call. * Ensure that the dnlc hash table is the same size as the dir name hash table (as per original author's note). Increase the dnlc CM_AFSNCNAMESIZE to a multiple of 8 for compatibility with 64-bit systems. * fix smb_ApplyV3DirListPatches to properly apply the hidden attribute to dotfiles when the infoLevel < 0x101 and cm_SyncOp has failed. * Fix the Freelance registry initialization code. There was a possibility that some systems could end up with garbage in the registry during a clean install. Since 1.3.66: * file and directory names beginning with "." will now be given the hidden attribute when the volume access is anonymous. this matches the behavior when the volume access is via an authenticated user. * Added a change monitor to the HKLM\SOFTWARE\OpenAFS\Client\Freelance key. When a change occurs mark the root.afs data as invalid and for it to be reloaded on the next access. This allows administrators to modify the mount point list without restarting the service. The freelance client used to provide a fake modification time for the root.afs volume data and its mount points of 7/09/2001 14:24 EDT. Added code to extract the last modification time of the Freelance registry key and use that instead. The time now represents the most recent mount point change. * PTS registration of new users to foreign cells has been added to aklog.exe * Additional Cache Control and Credential Manager options have been added to the WiX installer. See deployment guide for details. * The CachePath setting is now optionally a REG_EXPAND_SZ type * The WiX installer has been upgraded. Version 2.0.1927.1 is now required. * The loopback installation code may have had a problem updating the %ETC%\HOSTS file which could have resulted in a premature failure. Work around code has been added for the case where the file cannot be deleted. * The default max chunksize was increased from 15 (32K) to 17 (128K) because Windows sends 64K blocks when using overlapped writes. * The default number of server threads was increased from 4 to 25 to better handle overlapped writes. * The "AfscredsShortcutParams" registry value was not being properly loaded by afscreds.exe. Therefore, the default value was always being used instead of the value set by the installer. * Windows XP provides downgrade attack detection to prevent an attacker from being able to force the use of NTLM simply by disrupting communication with the KDC. This attack cannot exist between the Windows CIFS client and the AFS Client Service. Therefore, when a downgrade has been detected the afs pioctl library will force the establishment of a new CIFS connection using NTLM. * A locking error was discovered surrounding all references to volume server lists within the cm_cell.c source file. * The logged into Windows username was incorrect on Terminal Server machines. * A new registry value "NonPersistentCaching" was added to the service parameters key. When set to a non-zero value, the afs cache is stored in the Windows paging file. There are two limitations to choosing this option: 1. when persistent caching is implemented it won't work with this flag set since there will be nothing to persist. 2. with this flag set the initial paging allocation cannot be changed while the service is running * An initialization bug was discovered in aklog.exe which affected users who have a domain name for their afs servers which could not be mapped to a realm Since 1.3.65: * afs_config.exe now validates cell names against DNS in addition to the CellServDB file. * In order to allow the freelance client to connect to a volume with ID equal to 1 on the default cell we changed the fake root.afs volume ID once again. This time we choose 0xFFFFFFFF. In addition, we change the cell ID of the fake root.afs volume from 1 to 0xFFFFFFFF as well. It will now be impossible for a volume ID to match that of another cell unless the client is connected to 0xFFFFFFFD cells. That should be enough room for growth. * Fix "fs mkmount" command to work with UNC paths and when started from non-AFS drives. It is now possible to create a mount point in the freelance fake root.afs volume with the command fs mkmount \\AFS\all\ For example, fs mkmount \\AFS\all\openafs.org root.cell openafs.org fs mkmount \\AFS\all\.openafs.org root.cell openafs.org -rw * The algorithm used to re-attempt access to the servers associated with a volume has been altered to properly address the case in which all servers have been marked down. The previous algorithm did not reset the server's down flags so the servers were never actually retried. This caused a problem with active volumes if the network connectivity was lost as could be the case with a network cable removal, wireless drop, or laptop hibernation. With the fix volume access is restored almost instantenously when network connectivity becomes available. * Support for SMB/CIFS browsing has been added to the AFS Client Service SMB server. It is now possible to use "NET VIEW \\AFS" to obtain a listing of AFS submounts and freelance mount points. Support for NETSHAREENUM, NETSHAREGETINFO, NETSERVERENUM2, NETSERVERGETINFO significantly enhances the behavior of AFS volumes within the Explorer Shell. For instance, "AFS" now shows up as server in the Explorer with each submount or freelance mount point visible as a share. The right click menu in each folder now works with full functionality on a consistent basis. * The network provider can be configured to have different behavior depending on the domain that the user logs into. These settings are only relevant when using integrated login. A domain refers to an Active Directory (AD) domain, a trusted Kerberos (non-AD) realm or the local machine (i.e. local account logins). The domain name that is used for selecting the domain would be the domain that is passed into the NPLogonNotify function of the network provider. (see registry.txt for details) * Added a new registry value [HKCU\SOFTWARE\OpenAFS\Client] "Authentication Cell" which may be used to specify a default authentication cell for afscreds.exe which is different from the default cell for the AFS Client Service daemon. * Added a Logoff WinLogon Event Notification function to afslogon.dll. afslogon.dll moved to %WINDIR%\System32\. New registry entries added to register the dll for Winlogon events. The logoff event will now force a call to ktc_ForgetAllTokens() using the context of the user being logged off as long as the user's profile is not loaded from within AFS. If the profile was loaded from AFS we can't release the tokens since the Logoff event is triggered prior to the profile being written back to the its source location. This is now performed in an XP SP2 safe manner. * Windows XP SP2 Internet Connection Firewall interoperability has been added. * The %WINDIR%\afsdsbmt.ini contains four sections: Submounts, Drive Mappings, Active Maps and CSC Policies. The Submounts and CSC policies are now stored in the registry under [HKLM\SOFTWARE\OpenAFS\Client\Submounts] [HKLM\SOFTWARE\OpenAFS\Client\CSCPolicy] The Drive Mappings and Active Maps are stored in the registry under [HKCU\SOFTWARE\OpenAFS\Client\Mappings] [HKCU\SOFTWARE\OpenAFS\Client\Active Maps] There is no automatic migration of this data as it would be impossible to consistently migrate data to user profiles which may not be active when the machine is updated. * The %WINDIR%\afs_freelance.ini contains lists of mountpoints for the fake root.afs volume. For the same reasons as for the cellservdb file, this information should not be in %WINDIR%. This information is now kept under the registry key [HKLM\SOFTWARE\OpenAFS\Client\Freelance] The data from the afs_freelance.ini file will be automatically migrated to the registry on first execution of afsd_service.exe * Keeping the CellServDB file in the location %WINDIR%\afsdcell.ini is troublesome for several reasons. One, it is confusing for those who expect the file to be named "CellServDB" instead of "afsdcell.ini". Two, this file is not a Windows Profile formatted file. Three, applications should not be reading or writing to %WINDIR%. It causes problems for Windows Terminal Server. The new location of CellServDB will be the OpenAFS Client install directory which is by default C:\Program Files\OpenAFS\Client and can be determined by querying the registry for [HKLM\SOFTWARE\TransarcCorporation\AFS Client\CurrentVersion]PathName The existing afsdcell.ini will be migrated by the NSIS installer. The Wix installer must still be updated to do the same. * Change NSIS installer to use DNS by default; to remove Integrated Logon High Security mode; and to add Terminal Services compatibility registry entries to allow the OpenAFS tools to find the afsdcell.ini and other configuration files in %WINDIR%. * Add support for authenticated SMB connections. This will remove the need for high security mode in most situations. Both NTLM and Extended Security (GSS SPNEGO) modes are supported. Effectively, only NTLM can be used even though Kerberos is now supported. The reason is that it is not possible to construct a service principal which is unique to each individual machine. SMB Extended Auth does not work on XP SP2 unless one of two registry modifications are made: (1) To disable the check for matching host names on loopback connections set this key. This does not require a reboot: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa] "DisableLoopbackCheck"=dword:00000001 (2) To add the AFS SMB/CIFS service name to an approved list. This does require a reboot: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0] "BackConnectionHostNames"=multi-sz "AFS" "MACHINE-AFS" afsd_service.exe will automatically add the current Netbios Name to the BackConnectionHostNames list and then temporarily disable the loopback check for one cycle of startup/shutdown of the service. We assume most folks do not start/stop without a reboot so this will be adequate in most cases. * Fix security hole in afslogon.dll which allowed passwords to be sent in clear text to the KDC in a misformed principal name. * Fix cm_GetCell() to properly handle expired dns entries without crashing * If Freelance mode is active and the afs_freelance.ini file does not exist, do not create an empty file. Instead create a file containing ro and rw mountpoints to the default cell using the standard conventions. * Modify the Freelance support to handle the ability to create rw mount points in the fake root.afs volume. * Changed the RPC mechanism used for token setting from named pipes to local. Use of named pipes can be restored by setting the environment variable AFS_RPC_PROTSEQ to "ncacn_np". Named pipes were required when a Windows 9x system was using a NT system in gateway mode which is incompatible with our use of local loopback adapters. * In afscreds.exe, if a username of the form user@REALM is specified and no password is specified, do not perform a kinit operation. Only perform the aklog functionality. * Add a new registry value which allows the number of processors on which afsd_service.exe executes to be restricted. Valid values are 1..numOfProcessors HKLM\SYSTEM\CurrentControlSet\Services\TransarcAfsDaemon\Parameters (DWORD) MaxCPUs Since 1.3.64: * A second MSI based installer option is now available. * Fixed Kerberos 5 kinit functionality in afscreds.exe to properly request tickets for user/instance@REALM instead of just user@REALM * Modify the Power Management Notify routine to wait for the Hard Dead timeout period instead of a fixed 19 seconds. With the longer timeout periods Hibernation and Standby could never succeed when network connectivity is not available. * The following fs.exe commands are now restricted to Administrator: - checkservers with a non-zero timer value - setcachesize - newcell - sysname with a new sysname list - exportafs - setcell - setserverprefs - storebehind - setcrypt - cscpolicy - trace setting the default sysname for a machine should be done via the registry and not via "fs sysname". * NSIS installer adds options to install Debugging Symbols and the Microsoft Loopback Adapter; the user is now also given the ability to select the afscreds.exe startup options. * Build system modified to generate symbols for FREE (aka RELEASE) builds as well as CHECKED (aka DEBUG) builds * Sites which have a volume ID of 0x20000001 assigned to their root.cell volumes have been experiencing problems with accessing the root.cell volume of their cell when Freelance mode has been active. This was because 0x20000001 was assigned to the fake root.afs volume created by freelance. The fake volume id is now set to 0x00000001 to prevent conflicts. * The timeout logic in the AFS Client Service has been wrong for sometime. It is based on two different assumptions. First, the SMB client timeout is a fix value as was the case with OS/2 Lan Manager. This assumption is incorrect. The SMB timeout in Windows is a dynamic value computed based upon a fixed minimum timeout to which is added time based upon the size of the request and the performance characteristics of the connection. Second, it is the responsibility of the SMB Server to enforce the timeout requirements of the client. This is untrue. The SMB Server cannot be expected to know the requirements of the client. More importantly, if the SMB server uses the SMB client timeout as a value to restrict its behavior as an RX client, the performance characteristics of the local SMB session would be used to prematurely terminate WAN connections with significantly different performance characteristics. The timeout logic has therefore been modified in the following manner: . the Lan Manager Workstation (SMB) Session Timeout is used only as a basis for configuring the Connection Dead Timeout and Hard Dead Timeout values. The Connection Dead Timeout must be at least 15 seconds longer than the SMB Timeout and the Hard Dead Timeout must be at least double the Connection Dead Timeout. . New registry entries have been added to allow the Connection Dead Timeout and Hard Dead Timeout values independent of the Lan Manager Workstation Session Timeout . The test to enforce the SMB Client Timeout has been removed. One of the side-effects of removing the enforcement of the SMB Client Timeout is that regardless of whether or not the SMB client is available to receive the response (and how would the SMB server know) the RX protocol response can be used to update the AFS Client Service state for ready access by future SMB client requests. This should be the end of the "Server paused or restarting messages" * Add support for arbitrary UNC paths to the pioctl() support. This enables the fs commands as well as the AFS Shell Extension to work correctly when UNC paths are being used. * Fix afscreds.exe (by updating afskfw.lib) to search for cells via DNS if the cell configuration cannot be determined via CellServDB * Add debug info to test whether CM_BUF_WAITING or CM_SCACHE_WAITING are ever set more than once at a time * Fix the management of lists of cm_cell_t structures when using DNS to lookup cell information. The previous code would fail to reuse the same cellID for a cell if DNS was used more than once for a given cell name. When the ttl expired, a single cm_cell_t could be inserted into the cm_allCellsp list more than once producing a loop. In addition, the vlServerp list belonging to the cell was not freed resulting in improper refCounting of the servers. * Add DNS support to cm_IoctlNewCell() which previous only examined the CellServDB file * Add cm_FreeServer() function and call it from cm_FreeServerList() to properly garbage collect cm_server_t objects * Add numVCs variable to smb.c to track the number of smb_vc_t objects created and use it to initialize the vcID field which previously was set to 0 in all objects resulting in FindByID collisions. * Fixed DNS lookups to work consistently throughout the OpenAFS product instead of just from within the afsd_service.exe * Added a runtime check to ensure that AFS Client Service SMB Server is accepting connections before attempting to mount global drives. * Read IP addresses for volume servers out of the CellServDB file if gethostbyname() on the hostname fails. * Fix getcellconfig() to populate both the Hostnames as well as IP addresses when loading cell data via DNS * Increase the Connection Dead Time to 50 from 20 seconds Increase the Hard Dead Time to 120 from 40 seconds (matches the Unix values) * Fixed an assertion validating the number of allocated NCBs * Fixed the build environment to consistently build for Windows 2000 and above. (APPVER = 5.0) * Fixed rx_debug to properly validate the receipt in incoming data with select() and recvfrom(). Do not copy data out of the socket buffer unless success is indicated. Since 1.3.63: * afsd_service.exe will now display a message box to the desktop when it terminates due to an IP Address Change. * installer no longer deletes AFS Server configuration data on uninstall * installer generates a warning dialog if the RPC service is not properly configured * installer compressed with lzma instead of bzip2 * afsd_service.exe shutdown crash solved once and for all * reference counting of smb_vc_t data structures improved * name space collision of smb_fid_t event objects corrected * the output of "fs memdump" is now written to %WINDIR%\TEMP\afsd_alloc.log * the file TaAfsApp_1033.dll is now properly installed allowing the User Manager to start * a new algorithm is used for computing filename pattern matches * afscreds.exe now accepts user names containing instance fields. * Fix the Directory Name Lookup Cache to be case-sensitive. This is crucial in environments in which a Windows client is accessing a directory with more than one filename that differs only by case. If the directory contains "FOO" and "Foo". You want "DEL Foo" to delete the correct one. We still have a problem in that "DEL foo" will delete a random filename. This will be addressed in a future release. * Fix afscreds.exe -M option (renewMaps) to work when High Security mode is off. Also, remember to disable the ActiveMap flag in afsdsbmt.ini when a drive mapping is removed. * Updates to NSIS installer script. AFS Server configuration data will not be destroyed on un-install or re-install. Use a better compression algorithm. * afslogon.dll now uses KFW to obtain tokens when available * afslogon.dll when given an all uppercase username will attempt to authenticate with both the uppercase name and an all lowercase variation * DST modification removed. The fix appears to make things worse after a reboot of the machine. * fs.exe: added "cscpolicy" which is used to change client side caching policy for AFS shares Usage: fs cscpolicy [-share ] [-manual] [-programs] [-documents] [-disable] [-help] * Several uninitialized variables have been initialized * It is now possible to obtain tokens using cross realm Kerberos within afscreds.exe: cell: dementia.org user: jaltman@ATHENA.MIT.EDU password: xxxxxxxx Will obtain a cross realm ticket for jaltman/DEMENTIA.ORG@ATHENA.MIT.EDU will will in turn be used to obtain afs@DEMENTIA.ORG. The resulting token will be stored with the display name jaltman@ATHENA.MIT.EDU@dementia.org * aklog.exe has been added to the client Usage: aklog [-d] [[-cell | -c] cell [-k krb_realm]] [[-p | -path] pathname] [-noprdb] [-force] [-5 | -4] -d gives debugging information. krb_realm is the kerberos realm of a cell. pathname is the name of a directory to which you wish to authenticate. -noprdb means don't try to determine AFS ID. -5 or -4 selects whether to use Kerberos V or Kerberos IV. (default is Kerberos V) No commandline arguments means authenticate to the local cell. Since 1.3.62: * All of the resource files have been restructured to adhere to a set of rules IBM implemented for loading string resources. These rules had either been forgotten or were not discovered by folks working on the OpenAFS sources. The end result was memory corruption. This is primary item which was preventing the AFS Server from working. * Increased the size of the maximum ticket size stored in a token from 344 bytes to 12,000. Increased the buffers used to convey messages between the pioctl() caller and the SMB Server from 1000 bytes to 12,512. The code appeared to have been writing above the top of the stack by quite a few number of bytes. (The increased ticket size is necessary for the next item.) * When obtaining AFS Tokens via KFW, krb524 is no longer required. Instead the raw Kerberos 5 ticket is used in its entirety. This is extremely important as it allows us to use pure Kerberos 5 KDCs as the source of the AFS authentication. The use of up to 12,000 byte tickets will allow tickets produced by all versions of Microsoft Active Directory to be used. - create a user account. - designate it DES only - disable pre-auth - specify its UPN to be "afs@realm" - assign a SPN of "afs/cellname" to the UPN with setspn.exe * Do not enforce the funky 8dot3 pattern matching rule that the first "." is special when using long file names. (you must use "*.*" and not "*") Instead only enforce it when performing 8dot3 searches. * Fixed the DST problem with creation times being set one hour ahead * Fixed the problem when using \\afs\cell-alias. For example, \\afs\uncc instead of \\afs\uncc.edu. Do not a new cell struct for the alias name; instead simply expand the name. One of the symptoms of this problem was a loss of acquired tokens. * Fixed the AFS Shell Extension. The Symbolic Link menu was empty of strings. (Only English strings provided.) * Fixed the installer to properly replace in use files. * Fixed the build system to cleanup generated component version files * The release build compiled with MSVC 6.0 compiler to avoid the afsd_service.exe shutdown crash. This does not solve the problem but simply avoids it for the time being. Since 1.3.61: * fix afslogon.dll to not corrupt memory when High Security mode is not used. * fix afsd_service.exe to not attempt to restore the stack when an exception occurs. (not safe in multi-threaded programs) * fix uninstaller to properly remove the CRT and MFC DLLs * remove a Message Box from afscreds.exe when getcellconfig() fails on a kerberos realm which is not a cell The following is a list of changes to the OpenAFS for Window client since 1.3.60. * "fs setserverprefs" will leave afsd service deadlocked * "vos listaddrs" will core dump * installer sets the appropriate keys to support Integrated Logon * installer disables the "Find Lana by Name" functionality as it was causing headaches for many users * fix the intermittent crash of the power management thread when shutting down the AFS Client Service * optimizes the obtain drive mount list functionality which is executed every time the mount tab in afscreds.exe and afs_config.exe are refreshed. (this happens a lot) * fix the service shutdown logic. add the STOP_PENDING state and do not accept additional service events after we declare ourselves STOPPED. The following is a list of changes to the OpenAFS for Window client since 1.2.10. * flexelint was run against the source tree and hundreds (perhaps thousands) of corrections were applied to ensure prototypes were in use; types were used consistently; variables were initialized; unused variables were removed; etc. * A wide variety of instrumentation was added including the ability to produce a stack trace from within afsd_service.exe when it crashes. * Dynamic configuration of the RDRtimeout value based upon the LanMan Workstation Session Timeout * The mount root no longer needs to be called "/afs". This is now set by a registry value "MountRoot" within the key HKLM\SYSTEM\CurrentControlSet\Services\TransarcAFSDaemon\Parameters * The cell list is now only read out of afsdcell.ini when the file changes instead of each time a cell is resolved. * Thread synchronization was added to cm_server.c and ktc_nt.c * All calls to GlobalAlloc()/GlobalFree() were replaced with calloc()/free(). The Global functions were needed on Windows 3.x but have caused a variety of problems on the Win32 platforms. Avoiding them is highly recommended by several Microsoft Knowledgebase articles * Support for Symbolic Links added to the AFS Shell Extension * Added a registry value "OverlayEnabled" to determine if Shell Extension Overlays should be enabled. HKLM\SYSTEM\CurrentControlSet\Services\TransarcAFSDaemon\Parameters * New Build system to support VC6, VC.NET, VC.NET2003 compilers and separate trees for checked and free builds. Build system supports a custom directory src\WINNT\extra which can be used as a grafting location of organization specific additions to the build tree. * New installer built using NSIS 2.0. * Named all kernel objects in order to allow them to be monitored with tools such as SysInternals' ProcExp.exe. * Introduced new EventLog framework for AFSD * Introduced Power Management interface to AFSD for Standby and Hibernate modes to allow cache to be flushed prior to network disconnect * Utilize Win32 DNSQuery API instead of internal routines. This allows DNS SRV queries to be sent to all current domain name servers. Not just one specified in an INI file. DNS is now always activated. * "NetbiosName" registry value may be used to specify a fixed Netbios Name such as "AFS" to be used instead of "HOSTNAME-AFS" when the loopback adapter is in use. If you need to use the old notation with a loopback adapter installed specify a registry entry of "NetbiosName" REG_EXPAND_SZ = "%COMPUTERNAME%-AFS" * Refactor all modules which depend on LAN Adapter and NetbiosName determination in a new library: lanahelper.lib. This allows for consistent behavior throughout the product. * Move the afsd.log and afsd_init.log files to the directory specified by the "TEMP" environment variable. This is usually %WINDIR%\TEMP for services. Added the Date to the log entries. * New registry value "RxMaxMTU" used to limit the size of the RX packets sent by the AFS Client Service to the Server. In order to enable OpenAFS to work across the Cisco IPSec VPN the packet size must be restricted to 1264 or smaller. The latest NSIS installer sets a value of 1260 by default. * New registry value "RxNoJumbo" to disable the use of Jumbo Rx packets. This is not needed in order to work across the Cisco VPN but might be needed for other network environments. This value is not set by the NSIS installer. * New registry value "HideDotFiles" is used to apply the Hidden attribute to files whose names begin with a '.'. This value is set by the NSIS installer. * New registry value "MaxMpxRequests" allows the maximum number of multiplexed sessions to be configured at run time. This value is not set by the NSIS installer. The default value is 50. * New registry value "MaxVCPerServer" allows the maxmimum number of VCs per server to be configured at run time. This value is not set by the NSIS installer. The default value is 100. * New registry value "AllSubmount" allows the "all" submount to be disabled by setting its value to 0x00. * Allow cells names to be valid mount points \\\ * Store the active state of drive mappings in order for afscreds.exe to restore them upon startup * Add exception handling to generate a Stack Trace to the afsd_init.log file if one happens to occur. * Add lots of logging to help detect the cause of invalid SMB packets * Enable Kerberos for Windows to be used to obtain AFS Tokens via conversion of Kerberos 5 "afs" service tickets. Supports auto- renewal of expiring tokens as long as afscreds.exe is running. * New afscreds.exe command line options: -A = autoinit -M = renew drive maps -N = ip address change detection -Z = unmap drives * New registry value "EnableKFW" in {HKCU,HKLM}SOFTWARE\OpenAFS\Client determines whether or not MIT Kerberos for Windows should be used to obtain tokens via Kerberos 5 tickets. * New registry value "AfscredsShortcutParams" in {HKCU,HKLM}SOFTWARE\OpenAFS\Client determines the command line parameters to be specified when "fixing" the AFS Shortcut in the user's startup folder. * The "ShowTrayIcon" registry value has been moved from HKLM\Software\TransarcCorporation\AFS Client\AfsCreds to {HKCU,HKLM}SOFTWARE\OpenAFS\Client * The registry values used to store the token expiration reminders have been moved from HKLM\Software\TransarcCorporation\AFS Client\AfsCreds to {HKCU,HKLM}SOFTWARE\OpenAFS\Client\Reminders * Obtain the Logon User Name from the Explorer key when available * new text document doc\txt\winnotes\registry.txt lists all registry values used by OpenAFS (excluding the AFS Server) * BUG: rx_securityClass objects were not properly reference counted and were never freed. * BUG: reduce the number of conditions under which CM_ERROR_TIMEOUT would be generated. The existence of a server does not imply that it is not down. If all of the servers for a cell are down return CM_ERROR_NOSUCHVOLUME instead. This prevents the Explorer Shell from hanging. * BUG: the directory name lookup cache failed to free the entries in the cache when the name cache entries cycled. The entries in the cache would become dereferenced without being freed. * BUG: fs setserverprefs could be executed without Administrator privileges * BUG: the number of allocated NCB objects (100) exceeded the number which could actually be waited upon by the kernel (64). Any objects which were utilized above the limit could never have event completions detected. * BUG: smb_username_t objects were not being reference counted and were not properly freed. * BUG: smb_tid_t objects could under unusual circumstances be freed before they were no longer referenced. * BUG: smb_fid_t object pointer were frequently used even when their value could be NULL. They were not properly released and therefore they were never freed. * BUG: smb_packet_t data structures were not completely initialized upon creation * BUG: when Rx produces a CM_ERROR_NOIPC error do not return "Access Denied" because that causes the Explorer Shell to try again until access is obtained. Instead return "Remote Resources" which allows the shell to move on and treat the error as transient. * BUG: when initializing the NCBreturns structure, separate Event objects were created for each NCB although a single Event object was supposed to be shared by all. * BUG: smb_dirSearch_t objects were not being properly referenced counted or freed. * BUG: smb_tran2Packet_t objects were not being properly referenced counted or freed. * BUG: directory path creation did not handle the case of multiple directories requiring creation in one attempt * BUG: SMB requests which required an Extended Response were ignored. This prevented some files from being written to AFS volumes. * BUG: character strings were being freed even after they were inserted into in use data structures * BUG: inconsistent usernames were used when High Security mode was enabled. (there is still much to do in this area) * BUG: pioctl() calls which require out of band RPC operations were susceptible to race conditions when performed by multiple processes * BUG: memory allocation and deallocation crossed instances of the C Runtime Library producing memory leakage and corruption in afscreds and the client configurator.