Since 1.5.54 * Prevent separate cell entries from being created for "foobar.org" and "foobar.org." which can happen if an AFSDB record is found instead of a CellServDB record. * Fix a panic when checking the SMB virtual circuit list. If a VC is destroyed while the list is being checked it is possible for the next object to become invalid. * Increased logging to afsd_init.log of netbios name related errors. * Fix a DNLC panic when a UTF-16 string that cannot be converted to a utf-8 string is provided as a filename. * In the NSIS installer, delete old afslogon.dll/afscpcc.exe from %windir%\system32 and fix the WinLogon\Notify\AfsLogon location to refer directly to the new location in %programfiles%\openafs\client\program * Be more aggressive about responding to Netbios NRC_BRIDGE/NRC_NOWILD errors. Rebind the Netbios name to the LANA within the listener thread without performing a delete and reset. * Use the WNet Enumeration of all connected drives as a filter in the pioctl GetIoctlHandle operation. This should remove the last situations in which there was a delay when opening an Explorer Shell properties menu with the AFS Shell Extension. * Fix the parsing of CellServDB in Windows to handle linked cells as is done on Unix. * Add support for linked cells to the cache manager, netidmgr afs provider, and aklog. When two cells are linked, a volume lookup that fails in one cell is looked up in the other. This can be used for construction of test cells that override specific volumes; cell renaming; and cell splitting. * Increase the length of cell and realm names that can be entered in the NIM AFS provider. * Actively prevent a 32-bit afsd_service.exe from executing in the WOW64 environment. * Protect against invalid IP address values in CellServDB parsing. Since 1.5.53 * Fix an Rx panic caused by an attempt to double free an rx_packet when an error occurs while writing the packet. * Fix an exception cause by a race condition when processing multiple file change notifications registered by the Explorer Shell or other applications. * Modify the Rx debug interface to use var_args and permit Rx debugging to be used on 64-bit Windows which previously had it disabled. Since 1.5.52 * Automated lock hierarchy enforcement added to the osi base lock package. This permits detection of lock violations that might but often does not result in deadlocks. Enabled by default in the checked builds. May be activated in release builds via the registry value "LockOrderValidation" in the TransarcAFSDaemon Parameters key. When a violation is detection an assertion is thrown generating a dump file and a message indicating which locks were obtained out of order is logged to the Windows Application Event Log. * Attempt to ensure that a dump file will be generated whenever the service panics. * Removed unused lock cm_bufGetMutex * Many out of order lock acquisitions were detected using the lock order verifier and were corrected. * A race condition within the function path cm_GetSCache() -> cm_GetNewSCache() -> cm_RecycleSCache() permitted a cm_scache_t object to be issued simultaneously to two threads. This would eventually result in a panic due to the resulting undercount. * Fix interpretation of the empty string as the ioctl path to mean the current directory. "fs lsm", "symlink list", etc. now return a "not a ..." error instead of "does not exist". * Add SMB_STRF_SRCNULTERM flag to smb_ParseStringXXX functions. to indicate that the input string is a nul terminated string. Assign ti when input strings are nul terminated instead of length counted. (from 1.5.50) * The CIFS protocol specification for handling NT_TRANSACT_CREATE does not match the observed behavor. The 'nameLength' is specified in bytes, not in characters. Fix the implementation to match the observed behavior. (1.5.50) * The cm_HaveAccessRights() attempt at deadlock avoidance by calling lock_TryRead() on the parent directory cm_scache_t rw-lock does not avoid the deadlock. Avoid the deadlock by enforcing the lock order of the lowest vnode first. Then remove the infinite loop avoidance in cm_SyncOp() that was returning an unwarranted access denied error. * File Server lock synchronization was not propertly enforced in smb_ReceiveNTCreateX() and smb_ReceiveNTTranCreate(). * Another change to the short name generator. Plus and equal are not valid characters in a short name according to the RtlIsNameLegalDOS8Dot3() in kernel mode. They have been replaced with left and right brace in order to minimize the impact. * Fix a race condition that can result in a heap overwrite error if the number of known file servers or vldb servers increases during the preparation phase of a cm_CheckServers() operation. * If the SMB Authentication would fail, a LSA allocated memory buffer would be leaked. * Rewrite the cm_cell_t allocation code to permit cell vldb server lookups to fail without leaking cm_cell_t objects. * Add "fs setcrypt auth" to permit the use of rxkad authentication only mode. Not documented. * Initialize Rx mutex and lock objects once and only once as part of the DLL load process. * When reporting the Volume Name "AFS" do not include the terminating NUL in the reported length. * Refresh Volume Location information upon receipt of a VNOVOL error from the file server and avoid a race condition that prevented the updated volume location information from being destroyed immediately after it was acquired. * In response to VNOVOL and VMOVED, remove the volume id from the server's volume list so that the volume's up and down status is not affected when the machine is shutdown. * Many fixes to the Rx stack related to packet allocation and deallocation; Rx debugging; Rx packet tracking across queues; and Rx packet loss caused by overwriting the rx_call currentPacket pointer when it was already referring to a packet. * Rx Jumbograms are now off by default. To re-enable, add "RxJumbo" = "1" in the TransarcAFSDeamon/Parameters key. * "fs flush", "fs flushvolume", and "fs flushall" now destroy locally constructed directory B+ trees for flushed directory objects. * When cached pages for directory objects have been locally modified, do not permit the locally modified pages to be mixed with pages subsequently obtained from the file server. Doing so can result in directory corruption. * If Ubix errors are received in response to VL_xxx operations record the error on the server instance and permit the operation request to be retried in case another server is able to answer the query. We have seen at least one instance of a cell in which a VL server returned UNOQUORUM (possible database truncation) when the other servers were responding successfully. Since 1.5.51 * Optimize the assignment of write errors to dirty buffers by applying the first error to all buffers belonging to the same object instead of trying each buffer in turn. * Add resource version info to xstat_fs_test and xstat_cm_test * Fix a delete vs delete[] usage problem in the WiX custom handler dll * When creating a mount point, validate the volume name to make sure it exists. * When processing a mount point, pay attention to VL_BADNAME errors. * Remove a race condition from cm_volume_t recycling that could have resulted in two threads making use of the same object at the same time. * Fix a reference count leak on smb_vc_t objects introduced in 1.5.50. Permit the objects to be freed once again. * Fix the output of "fs memdump" for smb_vc_t objects that was broken in 1.5.50. * Add routines for debugging smb refcount errors. * When shutting down the cache manager, do not permit AFS callback requests to be processed. Doing so can result in invalid memory accesses. * Do not recycle a deleted cm_scache_t object unless the refCount is 0. Doing so can result in a deadlock and invalid memory access. * Minimize the number of RPCs sent to the file server for directory bulk status requests. Only request status for objects that we are actually reporting on and only if we do not already have status for the object and then make sure that we return as much as we can at once via the SMB interface but not so much that it exceeds the RDR timeout * Enable bos restricted operations * Fix the creation of submounts used by the afscreds and afs_config drive mapping tabs. * Avoid repeated retries when attempting to obtain access rights. If the access rights were obtained successfully but do not satisfy the request, fail the request. * Fix error code reported when attempting delete a file on a readonly volume or one that is marked with the readonly DOS attribute. * Fix a short name truncation bug. * Fix a heap corruption error when reading the CellServDB file location. * Fix directory listings when the directory has "lookup" permission only and the directory has never been previously accessed. * Fix several tracking issues for cm_scache_t rw locks. * Ensure that all buffers used to store cell names are the correct length. * Restore Windows 2000 support (broken in 1.5.50). LOCALE_INVARIANT was introduced in XP. * Add RxUdpBufSize registry value. Default is 256K. * Avoid multiple deadlocks between cm_freelanceLock and cm_scacheLock * Do not include trailing NULs when returning file names in a directory search response. * Prevent RX from crashing the afsd_service by attempting to allocate to many buffers at once when memory is fragmented. * Avoid a deadlock when freeing cm_server_t objects * Optimize search cell file. Do not search to end of file if the cell has already been found. * Remove explorer shell extension delay on local disks. * Automatically pre-allocate 64 Rx packets per thread * Add smb lock requests and stat cache lock allocations to the output from fs memdump. Since 1.5.50 * Fix Large File Support (broken in 1.5.50) * Fix "fs setacl" (broken in 1.5.50) * Fix pioctl path evaluation of drive letter mapped paths. (broken in 1.5.50) * Fix installation of VC8 Runtime library in the EXE Retail installer. (broken in 1.5.50) * Avoid a potential deadlock during Volume Location updates if all the file servers are unreachable at the time the VL update succeeds. * Ensure that rx connection object is references during VL RPCs. * Fix propagation of over quota errors during cm_FSync() calls. Since 1.5.39 [1.5.50 released 16 July 2008] * There were no releases between 1.5.39 and 1.5.50. * FIRST RELEASE WITH UNICODE SUPPORT * Pioctl interfaces to the cache manager refactored to provide layering between the SMB specific code and the general purpose ioctl operation. * Garbage collect dead SMB virtual circuits as soon as they are no longer being referenced. This avoids problems with outstanding locks not being dropped when the virtual circuit becomes invalid. * Remove the IBM Administration Reference documentation and replace it with the OpenAFS Command Reference Manual. * Avoid calling rx_SetDeadTime and rx_SetHardDeadTime functions each time a connection is about to be used. Do not hold a lock on the rx connection object while it is being selected. This avoids a race between threads attempting to set the timeout values and removes a bottleneck that was hampering performance. * Ensure that the smb directory attribute is set for all directory objects. * Add vs2008 support to the NSIS installer scripts * Replace the VC Runtime EXE installer with the MSI installer in the NSIS installer scripts * Properly delete the VC7.1 C Runtime libraries. Since 1.5.36 [1.5.39 released 23 June 2008] * There were no 1.5.37 or 1.5.38 releases for Windows * Use Visual Studio version of vsprintf() instead of home grown version that resulted in linking conflicts * Prevent buserver, ptserver and fileserver from crashing due to non-portable strftime() format strings. * Prevent server crashes caused by rx_InitMorePackets() being called prior to allocation of all of the required synchronization objects. * Fixed a memory leak in the internal B+ tree directory. For objects with non-8.3 names, the 'longname' memory allocation would be leaked during object deletion or tree destruction. * Fixed a memory leak in the background daemon cm_CheckServer() routine. The memory allocated to store the server list was not freed. * Obtain a missing lock around a call to cm_RemoveSCacheFromHashTable(). * Correct an abstraction layer violation. cm_scache_t objects should be marked deleted in cm_Unlink() and cm_RemoveDir() and not in smb_CloseFID(). Cleanup of deleted cm_scache_t objects should be performed in cm_ReleaseSCache() when the reference count hits zero. * Prototype cm_AdjustScacheLRU() and re-implement it using osi_QAddH(). * Do not reference 'smb_logp' in cm_vnodeops.c. Use 'afsd_logp' instead. * Ensure that scache object 'nextp' pointers are set to NULL when the objects are removed from the hash table linked list. * If a dirty buffer cannot be written to the file server because of an access denied error, mark the error in the cm_buf_t structure so that it can be dealt with instead of retrying forever. Since 1.5.35 * Update CellServDB file to GCO Public 23 Apr 2008 * Fix a cm_buf_t reference count leak when attempts to write dirty buffers to the file server from within cm_IncrSyncer() fail. * Prevent udebug from crashing. * Activate RX Idle Timeouts. If the file server is busy for more then 30 seconds, attempt to failover to another server without marking the busy server down. * Another VNOVNODE issue fixed. When writing a dirty buffer to the file server, if VNOVNODE is received, mark all buffers as invalid without further attempts to contact the file server. * Improved performance on high latency links. Since 1.5.34 * Fix a bug preventing the re-initialization of the Freelance root.cell contents when a change is made. * Properly return CM_ERROR_NOSUCHFILE when removing a symlink or mountpoint that does not exist. * aklog, afscreds, integrated logon, and the NIM AFS credential provider will all attempt to first acquire an afs service ticket using the service principal: afs/@. This permits the proper detection of the cell realm when multiple realms are local realms for the cell. * Fix fs commands that re-use file identifiers instead of forcing a path evaluation each time. This was broken in 1.5.33 when hashes were added to the cm_fid_t structure. * Fix symlink and mountpoint removal and then recreation when applied to the fake Freelance root.afs volume. * Fix SMB change notifications for the Freelance root.afs volume when creating or removing symlinks and mount points. * Force DNS AFSDB cell name lookups to lower case if the DNS response is not all lower case. * 32-bit installers are now built with Visual Studio 2005 * All vos.exe commands now support the "-noresolve" option which forces the display of IP addresses instead of DNS hostnames. * No longer hold the cm_volume_t mutex across VL_xxx RPCs. This permits operations that do not require up to date volume location data to continue while waiting for the RPC to complete. Multiple threads waiting for a volume location update on the same volume set no longer trigger multiple calls VL_xxx RPCs. * Volume server references could be marked offline and never reset to the not_busy state. * Further optimizations to cm_Analyze() retry logic for CM_ERROR_OFFLINE and CM_ERROR_ALLBUSY error handling. Since 1.5.33 * Optimize the DNLC by applying Interlocked incrementing for statistics gathering and enabling greater use of read locks instead of write locks * Further optimize osi_Log operations when logging is disabled by removing the need for the function call overhead. * Add a new lock operation, Convert Read to Write, and apply it throughout the cache manager. This function provides a fast transition from a read lock to a write lock when the caller is the only reader. * Fix a timeout problem when opening files or request locks when the file in question is already write-locked by another machine. * Fix a deadlock that can occur if "fs flushall" is executed while applications are writing to AFS. * The cache manager would re-read data from the file server after file truncation when obtaining buffers to write to the same file until the first StoreData RPC completes. * Fixes error handling in cm_NTCheckDelete() * Replaces cm_scache_t mutex with a read-write lock permitting additional parallel access. * Prevent an cm_scache_t reference undercount when evaluating symlinks containing @sys when none of the active sysnames match any of the available targets. * Prevent the leak of a cm_scache_t rwlock if associated symlink is too long. * Set RxMaxMTU registry value to 0 which is the equivalent of it not being set at all. * Reduce contention between BkgDaemon threads * Prevent CM_SCACHEFLAG_ASYNCSTORE from being reset on a write failure * Convert reference counts on cm_volume_t, cm_conn_t, cm_server_t objects to use the faster Interlocked operations which avoid the need to hold write locks. * Permit rxkad errors other than RXKADEXPIRED to be treated as a non-fatal error that forces a retry against another service (if available.) * Fix a crash in smb_WriteData that would occur if an application opened the file as read-only and then sent a write request anyway. (RT 88731) * Respond to VL_NOENT errors by removing cm_volume_t object and setting it to be the first object to be recycled. This is not only a more efficient use of resources but it also prevents repeated attempts to query the VLDB server for the volume from the CheckOfflineVolumes routine. * Change the defaults for RxEnablePeerStats and RxEnableProcessStats back to "on". * A first cut at a cache manager statistics monitor that can be used to determine the necessary cache parameters to support the application working set. Off by default, the performance package can be activated by setting "daemonPerformanceTuningInterval" in the service Parameters key. As with the other daemon interval values the unit is in seconds. At service start and each succeeding interval the cache manager will write statistics to %TEMP%\afsd_performance.txt showing the relative usage of cm_scache_t, cm_volume_t and cm_buf_t objects. The FID statistics keep track of all FIDs seen by the cache manager during the service session whether or not they are backed by any live object in the cache. These statistics are not stored in the cache file. * Fix windows event logging broken in 1.5.33. * Eliminate multiple calls to syscfg_GetIFInfo() which is used to populate the IP address list for WhoAreYou/TellMeAboutYourself RPCs as well as when computing the server preference list. * When merging status after a StoreData operation prevent data buffers from being discarded that we would prefer to keep. (Bug introduced in 1.5.33.) * Modify installers the set RxMaxMTU to 0. * In the AFS Configuration Panel on the Advanced->Miscellaneous dialog, the Background Daemons and Service Threads fields were swapped. * Increase default number of Background Daemons to 4. * Remove cm_volume_t reference from the cm_scache_t object. Permit cm_volume_t objects to be recycled. * Windows Error Reporting has shown a number of previously unseen stack corruption errors in the Explorer Shell extension. The minidump appeared to indicate the problem was in ParseAcl(). Reviewing the function it appears that numerous things could go wrong if invalid input was provided. Added error checking and data validation. Hopefully this will address the problem. * Windows Error Reporting has shown crashes in aklog as a result of krb5_cc_get_default() failures not being handled. They are now handled. Since 1.5.32 * The Rx library used a 32-bit type for sockets which was truncating the socket value on 64-bit Windows. This was not an issue in general but became an issue when Rx "hot thread" support was enabled. * Enable "Rx hot thread" support which ensures that while a received message is being processed that a new thread is allocated to receive the next message to arrive. * Increased parallel access to smb_rctLock protected resources. Reduce the number of times that the lock is dropped and re-obtained. * Increased parallel access to cm_scache_t and cm_buf_t resources by replacing the previous global write lock protected reference counting mechanism with one built upon the use of InterlockedIncrement and InterlockedDecrement. * Implement a hash for cm_fid_t to reduce comparison costs and inline the cm_FidCmp() function. * Redefine the BUF_HASH and BUF_FILEHASH in terms of the cm_fid_t hash which has a better distribution * Modify cm_ConsiderPrefetch to evaluate the amount of data in the most recent read request instead of the next chunkSize. cm_chunkSize can be dozens or hundreds of buffers. As a result too much time is spent performing the evaluation. * Fix the usage of cm_scache_t bufCreateLock. The purpose of this lock is to prevent the creation of new buffers while a truncation is being performed. All references to bufCreateLock have been removed except in two places: i. a write-lock surrounding the function that calls buf_Truncate() ii. a read-lock within buf_GetNewLocked() that actually allocates new buffers * Modify the CM_CONFIG_DATA_MAGIC value to include a CM_CONFIG_DATA_VERSION number which value be used to force the replacement of the cache file contents when incompatible changes are made between releases. * CM_SCACHESYNC_ASYNCSTORE should not be ordered by cm_SyncOpCheckContinue * Avoid calls to multi_Rx if nconns == 0 * Modify smb_WriteData to perform background writes based upon the crossing of 'smb_AsyncStoreSize' boundaries instead of cm_chunkSize boundaries. This will slow down writes from the SMB interface but will avoid the risk of the CIFS client disconnecting from the AFS client SMB server. The default value for 'smb_AsyncStoreSize' is 128K. * SMB AsyncStore functionality is on by default but can be disabled using the registry value: HKLM\SOFTWARE\OpenAFS\Client DWORD "EnableSMBAsyncStore" smb_AsyncStoreSize can be adjusted with HKLM\SOFTWARE\OpenAFS\Client DWORD "SMBAsyncStoreSize" The value must be a multiple of the buffer block size and cannot be larger than the chunk size. * Do not leak a read lock on the bufCreateLock * Do not forget to call cm_SyncOpDone if cm_SyncOp succeeded in cm_CheckNTOpen() * In MergeStatus, only remove clean buffers from the hash table. * Avoid the need to update the data version number on each buffer associated with a scache when MergeStatus is called after a StoreData by maintaining a range of valid data versions as part of the cm_scache_t object. * Profiling shows large numbers of blocked calls in cm_HoldSCache from cm_HaveAccess... We can safely avoid the call so do so. * Add "ForceAnonVLDB" service parameters registry value. Default is 0. Set to 1 to force the use of anonymous connections to the VLDB servers. This is useful when using krb5 tokens and the VLDB servers have not been updated. Since 1.5.31 * Do not attempt to search for a cell name that matches one of the special share names "svrsvc", "wkssvc", "ipc$" * Issue permission denied warnings from afscreds if attempts to modify the startup shortcut or registry values fail. This happens under Vista UAC. * Do not return BAD_NETWORK_ERROR in response to attempts to create directories or files in the Freelance root.afs volume. Instead return ACCESS_DENIED. BAD_NETWORK_ERROR was being sent because the Freelance cell has no vldb servers. Short circuit the error by testing for freelance in CreateFile and MakeDir * Treat srvsvc, wkssvc and ipc$ as pseudo files. Permit them to be opened and closed without actually existing. For now we treat them as equivalent to ioctls but this should eventually change. * Fix RAP processing to not reject names that exist in the root.afs volume for GetInfo queries. * In afscreds, use GetUserNameEx to obtain the username instead of searching the registry. Try UserPrincipalName first and fallback to SamCompatible. * Stop linking to rpcns4.dll which is no longer supported on Vista and 2008. TaAfsAdmSvr is going to have to be redesigned. * When processing dfs referral requests, if the sharename is a partial match and therefore will not be added automatically to the share list, make sure that we return an error. * Avoid a crash when logging VNOVOL errors returned from cm_CheckOfflineVolume. * When trace logging is disabled, do not permit osi_LogSaveString to perform the string copying. By disabling the string copies, throughput of the service more than doubles. * when checking offline volumes, update the cell vlserver info if required and don't perform a check if there are no servers in the list. * Add volumes in the vl_unknown state to the list of objects to be checked as offline or retried when an allbusy error is received in cm_Analyze. * Add support for configuring rx_ExtraPackets * All calls to buf_Get() must be protected by a read lock on the cm_scache_t bufCreateLock * When a MergeStatus results in the invalidation of buffers, do not remove buffers from the hash tables that have active references. * Upon receiving a VNOVNODE error from a file server, be sure to invalidate any file locks. This prevents on-going attempts to extend the locks and will cause subsequent attempts to access the file to receive a invalid handle error. * Prevent smb_ReceiveTran2SearchDir from adding terminating NULs to directory entry names. * No longer discard tokens when RXKADBADTICKET error is received. Instead return STATUS_NO_KERB_KEY error. Since 1.5.30 * Add "cmdebug -cellservdb" option and client service implementation permits querying the vldb server for each cell known to the cache manager. The output is in a form that permits it to be used as a CellServDB file. * Add Symlinks->Show option to the AFS Explorer Shell Context Menu * Prevent buffer overrun in the cmd parser used by command line tools such as fs, vos, pts, etc. * The path ioctl operations have several issues: (1) the specified path for "fs examine, whereis, whichcell, flush" and so always has the follow symlinks and mount points semantics. This makes it impossible to determine what the FID of a symlink or mount point is. (2) "fs examine" out is not the result of a single pioctl operation but is actually the combined output of half a dozen operations. Path evaluation is an expensive operation. It would be faster if the caller could evaluate the FID first and then perform all of the rest of the operations by specifying the FID instead of the path. (3) fs output reports all objects as files. By adding a GetFileType pioctl more informative output can be provided that indicates what type of object the path evaluates to. (4) the Windows fs command includes a number of commands that do nothing but exist only because the Unix cache manager supports them. A new extendible data structure cm_ioctl_query_opts_t has been added which can be optionally specified with pioctls that do not already require input data. The first two fields of this structure are 'literal' and 'fid'. The literal field is used to indicate whether the last component of the path should be evaluated following symlinks and mount points. The fid field permits a fid to be specified. * A new GetFileType pioctl has been added. The type of objects are now output. * A new "-literal" option is available for "fs examine, flush, whereis, and whichcell. * Unimplemented fs commands have been removed. * There are circumstances where a volume object is being accessed and the volume is marked indicating that the volume location information is out of date but where it is also pointless and perhaps dangerous to block waiting for the rpc to complete. One example is when processing the cmdebug requests. If we know that we are not going to use the volume object to contact a server, then we can now set the CM_GETVOL_FLAG_NO_RESET flag. * when moving up in the directory tree we search the recorded fid list to find a matching fid that we have already crossed. we must also reset the fid count based upon what we discover. * Cell names are published as share names. As a result they are searched for as part of the Dfs Referral evaluation. If share "foo" can not be reached, the CIFS client will fallback to searching for "fo" as well. Since the freelance client automatically adds a symlink for prefixes of the cell name, this results in both "foo" and "fo" being added to the freelance root.afs volume. This patch prevents that negative side effect. * when tracking Kerberos credential cache names be sure to include the cache type prefix. * Microsoft has assigned OpenAFS a network type value * The algorithms that were used to produce a Netbios name were broken. The name that was produced when the hostname was too long was in fact longer than the maximum permitted netbios name. Also, the "NetbiosName" value was not used as a suffix when the loopback adapter was not installed. The hardcoded string "AFS" was used instead. * avoid another deadlock during server probes initiated by the ipaddr change daemon thread. * prevent the afs client service from crashing when fs newcell is executed * In the NSIS installer, move afslogon.dll, afscpcc.exe and afs_cpa.cpl to \Program Files\OpenAFS\Client\Program in order to get them out of the %windir% tree * EDQUOT == WSAEDQUOT. Define it in the right places so that in the end STATUS_OUT_OF_QUOTA can be returned to the application. * Modify the search order for determining the location of CellServDB and other client configuration files. 1. AFSCONF environment variable 2. registry setting 3. NEW - use All Users\AppData\OpenAFS\Client only if CellServDB exists 4. use Program Files\OpenAFS\Client * More Vista Power Management tweaks * Close a socket handle leak in the kauth routines * Don't hold a cm_volume_t mutex across RPCs * Convert downTimes to use clock time instead of relative times. This permits correct comparisons with expiration times. * Update the Wix installer to properly install the prerequisites for translate_et.exe * Do not translate pioctl paths as they are not converted by the file system stack. * Implement multi_rx probes for checking whether servers are up or down. Turns probes into a constant time activity instead of one dependent upon the number of known servers. * Treat VNOVOL errors the same as VOFFLINE. Do not force an update of the volume location data and retry. VNOVOL means that the volume could not be attached. It doesn't mean that the volume is not on this server. * Modify the Explorer Shell AFS Context menu Symlink->Add to not attempt to validate the target path. There is no reliable method of doing so. * Improve performance of \\afs\\ access by eliminating extraneous attempts to search the CellServDB file and DNS AFSDB records. Share names containing '%' or '#' are not valid cell names. * Return STATUS_RANGE_NOT_LOCKED if the application attempts to unlock a range that is not currently locked. * Enable the 32-bit tools to read the 64-bit registry keys when executing in the WOW64 environment. Since 1.5.29 * Fix buffer refcount leak introduced in 1.5.29 * Prevent the NIM AFS Provider from crashing when configured to use Kerberos v4 for token acquisition in situations where no Kerberos v4 support is available. For example, 64-bit KFW or sites that delete the Kerberos v4 DLL. * In afsd_init.log, support logging cache sizes greater than 2GB. * The volume status output of "fs examine" was being determined based upon the wrong error value. Instead of using the pioctl() return code, the errno value must be used. * Prevent invalid pts auto-registration attempts by aklog and the NIM afs provider when Kerberos referrals are in use. (krb5 1.6+) * Add synchronization protection to all of the SMB Listener State variables. This prevents race conditions when the addition or loss of a network adapter takes place. * On Vista, there is a race condition between the restart of the afs client service and the network adapters. Ensure that the afs client service can handle switching between loopback and non-loopback modes of operation. * Fix FollowBackupPath to work with mount points that are not explicitly read/write. * Fix a deadlock that has been observed on Vista while resuming after at least four hours of sleep. * Add new HKLM registry configuration options that can be used to provide configuration hints to the NIM AFS Provider when creating new identities. See release notes for details on HKLM\SOFTWARE\OpenAFS\Client\Realms\. Since 1.5.28 * Speed up write buffer operations by holding a global read-lock instead of a write-lock when updating the buffer data version number. The data version is protect by the associated stat cache mutex. * Speed up read buffer operations by removing out of date buffers from the buffer hash tables. * Protect against a null pointer dereference in afslogon.dll if QueryAdHomePathFromSid() fails. * Remove a race condition while accessing private freelance data structures. * Update the buffer data versions when Freelance directory data changes. * Complete the implementation of smb_ReceiveTran2GetDFSReferral(). Critical for Vista. * Return EAS_NOT_SUPPORTED in response to EA read/store/query instead of returning zero length. * Return ERROR_RETRY when a server sends VBUSY. * Return PATH_NOT_COVERED instead of BADSHARENAME for DfsLinks when a volstat plug-in is in use. * Enhance the volstat interface to support Dfs path mappings. * Fix "symlink list" to do the right thing for Dfs links * Fix callback expiration that was broken in 1.5.27. * Fix a crash at shutdown caused by the lack of synchronization within the daemon threads (cm_Daemon, cm_BkgDaemon, cm_IPAddrDaemon) * Hold the cm_server_t mutex while walking or modifying the cm_server_vols_t list in order to avoid a race condition. * Ensure that the cm_server_t refCount is safely modified. * The pthread library implementations of pthread_cond_wait and pthread_cond_timedwait were failing to return with the mutex held when error conditions occurred. This could result in race conditions wherever they are used. One case in which problems were seen was the Rx event_handler(). * Prevent cm_GetBuffer() from locking all buffers associated with a stat cache object before deciding if the current buffer is up to date. * Fix cm_BkgPrefetch to actually ensure that there is a cm_buf_t object for each offset that we will attempt to reserve. * Reduce the default number of background daemon threads used to prefetch or store to one in order to prevent two or more threads from stepping on each other. * Reduce the default chunk size to 256KB in order to prevent read timeouts on low bandwidth connections. * Fix a race condition that could result in threads becoming stranded when synchronizing multiple requests on the same stat cache object. Since 1.5.27 * The GiveUpAllCallBacks functionality that was added in 1.5.21 has been disabled. It has been disabled because it turns out that the RPC is improperly implemented in all file servers previous to 1.4.6. The RPC is executed without the proper locks being held resulting in data corruption and eventual file server failure. The functionality will be re-enabled in a a few months. * a couple of .readonly Volume Callback optimizations were implemented: - Apply most recent volume callback to all stat cache objects in the volume. This avoids premature callback expirations and unnecessary FetchStatus calls. - Add option to permit attempts to renew .readonly Volume Callbacks on a periodic basis to avoid invalidation of stat cache data. [Requires daemonCheckVolCBInterval be set to non-zero number of seconds. 1800 (30 minutes) is suggested.] * Adds support for 64-bit data version values. Previous releases only supported 32-bit values. Larger values sent by the file server would result in rollover. * aklog and asetkey no longer generate an exception if Kerberos for Windows is not installed. * If the LSA authentication functions report a temporary out of memory condition, fail the current authentication and do not cause the AFS client service to terminate unexpectedly. * When the AFS client service is shutting down, prevent the daemon check thread from executing additional checks which might attempt to access discarded locks or unmapped memory. * Correct a double free condition in the NIM AFS credentials provider. * Add "FollowBackupPath" service parameter registry value. This provides equivalent functionality to the UNIX afsd -backuptree option. When set to a non-zero value, normal mount points originating in a .backup volume will prefer a .backup volume. Since 1.5.26 * Fix NSIS uninstall from the .MSI installer. * Add Stack Frame logging for AMD64 * Add support for EWOULDBLOCK to cm_Analyze. If the file server returns EWOULDBLOCK, retry the request every two seconds for up to the RDRtimeout. * Reorganize the order of the includes to ensure that EWOULDBLOCK is not assigned the same value as EIO. * Update CellServDB to GCO Public 25 Oct 2007 * Add additional validation and error handling code after each call to getSlot(). If an invalid slot is returned, return NONODE. If the invalid slot is returned when extracting a data node, invalidate the tree. * Modify compareKeys() to always perform a case-insensitive comparison and only perform a case sensistive comparison if the case-insensitive one matches. This ensures the ordering is consistently reported. * Add lock assertions to ensure that all calls are being performed with the correct locks being held. There have been some crash reports that provide stack data that does not appear to be possible unless there is a race. However, there are no obvious locations where the race is taking place and the test suite indicates that all of the correct locks are being held. We shall see what happens in the field. * For consistency replace all calls to findKey in which the range i s (1,numentries) with calls to getSlot(). * Optimize the depth search loop by testing the slot value in the for statement instead of forcing the loop to be broken later. * Reorganize the locking for cm_BeginDirOp and cm_EndDirOp. There are a number of locations where locks are obtained, dropped, and reobtained. This reorganization attempts to accomplish several things: (1) be optimistic for the most common case so it will be fast (2) add consistency checks after each location where locks are dropped and re-obtained. If we lose a race in cm_BeginDirOp and the bplus tree is out of date, retry until we get to a consistent state that we can use. (3) Ensure that all operations take place with the correct locks. * One of the issues that has become a serious problem since the addition of the local directory updates is that although cm_SyncOp synchronizes operations, it does not preserve the order of requests. This has always been a problem in that it has been possible for a request to fail to complete due to its worker thread's bad luck. When a request takes longer than the Windows SMB Redirector's timeout, the SMB Redirector tears down the SMB virtual circuit. When using the local directory updates it is really important that the directory update operations complete in the order that they were sent to the file server. If they don't, then the local directory state and the file server state will not match and the local directory state must be discarded which in turn forces a new read of the entire directory contents over the network. This patch adds a new cm_scache_waiter_t object that is used to store the current thread, buffer, and syncop flags within a waiters queue on each cm_scache_t object. If a thread is forced to sleep in cm_SyncOp, upon waking it will check to see if there are any other threads waiting that are attempting to perform a similar task ahead of it in the queue. If yes, the thread goes back to sleep. If not, it goes ahead and enters the cm_SyncOp conflict resolution block. This patch has the additional side effect of reducing the number of competing threads that must obtain the cm_scache_t mutex and process the cm_SyncOp conflict resolution block. As a result, the overall CPU utilization of the service and the clock time associated with processing requests will be reduced. * assert that the cm_scache_t mutex is held when calling buf_ForceDataVersion(). * rename findNode to leafNode in bplus_Lookup * replace all OutputDebugString calls with osi_LogX calls * modify bestMatch to special case the return values for leaf nodes. If an entry is above or below the values available in the leaf node return BTLOWER or BTUPPER instead of BTERROR. * In insert and delete operations check for BTLOWER/BTUPPER and isleaf, if true convert to either slot 0 or Max and perform the insertion. This produces easier to read code when performing lookups. * modify lock_AssertXXX macros to call osi_assertx() and provide a descriptive message. * the difference between osi_assert() and osi_assertx() is whether or not a description is specified as part of the call. When no message is specified afsd_notifier() is called with a NULL msgp parameter. This results in a null pointer dereference during the EventLog() call. As a result, none of the information describing the assertion is written to the log file. This commit sets a default message for use when no other message is provided and it replaces all calls to osi_assert with osi_assertx and adds descriptions. * Migrate B+ tree search key into thread local storage Since 1.5.25 * Fix an uninitialized variable in lana_IsLoopback() which could result in a random determination that a loopback adapter is not a loopback adapter. This would result in a computed Netbios service name of %MACHINE%-AFS instead of AFS. This is a serious problem if the value computed by the AFS Client Service and the client process pioctl calls produce different results as it will result in a communication failure. * Fix a crash in the B+ Tree code that results when a file rename only results in a change of case. * Fix the pioctl path parsing. The previous algorithm broke the current directory of the client into two parts, the TIDpath which represented the device root and the relative path. The problem is that this is not sufficient from proper processing of symlinks and mount points. What is required is that the last component of the path must not have the symlink or mount point be evaluated whereas symlink and mount point evaluation must be performed for the rest of the relative path. Therefore, the path is now split into three parts: TIDpath, intermediate path, and last component. "fs examine" now reports the data of the symlink or mount point object instead of the target and "symlink list" and "symlink remove" now works. The "Explorer Shell Extension" menu now is displayed for symlink objects. * More informative symlink.exe error messages. * When the cmd.exe "del" command is used to remove a symlink, not only was the link object removed, but the stat cache object for the target was marked deleted. This resulted in cache corruption which would require the destruction of the cache to correct. * Add undocumented registry value, "OfflineReadOnlyIsValid" which results in cached contents from read only volumes to be treated as valid when there is no callback registered and all servers are down or all instances are offline. HKLM\SYSTEM\CurrentControlSet\Services\TransarcAFSDaemon\Parameters * Add documented registry value, "AcceptDottedPrincipalNames" which is used to permit the acquisition of AFS tokens using Kerberos v5 principal names which include a dot in the first component. {HKLM\HKCU}\Software\OpenAFS\Client * "fs uuid" does not require "AFS Client Administrator" group membership to display the current UUID value. Since 1.5.24 * Update NSIS installer to version 2.30 * Update Wix installer to version 2.0.5325 * 64-bit KFW support: - Network Identity Manager plug-in - 64-bit aklog - 64-bit krb5 enable afscreds.exe, afs server manager, etc. * Enable B+ tree Directory Search by default. * NIM plug-in is now compatible with FILE: ccaches * Install instloop.exe into Client/Programs/ even though it isn't required. Permit it to be used by organizations that clone Windows systems. * On a suspend, only drop callbacks for servers that are online. If the server is offline, maintain the callback until the server is once again available. * Prevent against acquisition of a directory write lock when there are no updates to be performed. This was resulting in a write-lock leak which later on would lead to a deadlock. * Add configurable file pre-fetch mode. For files that match the specified file extensions, pre-fetch the entire file into the cache. HKLM\SYSTEM\CurrentControlSet\Services\TransarcAfsDaemon\Parameters (MULTI_SZ) PrefetchExecutableExtensions * Fix the client_osi large integer support so that return values can be properly assigned to large integer variables. * Do not hold cm_scache_t mutex across cm_GetCell() calls since cm_GetCell() can block in a RPC. * Add short file name support to B+ tree searches. * Resolve a conflict between the desire to notify file servers that the client workstation is suspending and the desire to permit objects with valid callbacks when the client suspends to continue to use those objects from the cache if the client resumes without network connectivity. * Fix stack variables to ensure that all buffers storing paths can handle AFSPATHMAX (1024) characters. Paths of 256 characters would cause a stack overflow condition. * On Vista, force afs_config.exe to run with the highest privileges available to the end user. For a user in the Administrators group running under UAC, this will cause afs_config.exe to be be run with full Administrators privileges after the user approves the privilege escalation. * More VNOVNODE handling issues. If a dirty buffer cannot be written due to VNOVNODE, clear the buffer and ignore the error. If a cm_scache_t object has been marked deleted due to a VNOVNODE error, the next time the smb_fid_t object that references it is used return either NOSUCHFILE or NOSUCHPATH and close the smb_fid_t object. Subsequent attempts to use the smb_fid_t will result in an invalid handle error. * For Vista, set the RequestExecutionLevel of the NSIS installer to "admin". * For the build environment, support the generation of manifests when using the CL1310 (VS .NET 2003) compiler/linker. * There was a bug in OutputDebugHexString() which could overflow a stack buffer resulting in unexpected process termination of afsd_service.exe if the input Security Token contained many bytes equivalent to the '%' char. * Add directory lookup statistics to "fs memdump" output. Since 1.5.23 * Windows uses case-insensitive file name pattern matching but AFS is a case sensitive file system. The AFS3 directory format is block based, uses network byte order and includes a hash table for fast case sensitive lookups. This causes several problems for the Windows AFS client. (1) Traversing the directory blocks is cpu expensive (2) A hash table miss does not indicate that the desired entry does not exist. (3) Determining whether a non-ambiguous inexact match or the entry does not exist requires a linear traversal of the entire directory. These issues often result in 100% CPU utilization. These issues are addressed by building a modified B+ tree for each directory and then using the B+ tree for searches. This feature is disabled by default. To enable it set the "BPlusTrees" registry value to 0x01 in the AFS Client Service Parameters key. * Correct a null pointer dereference in the symlink recursion detection code. (Introduced in 1.5.22) * Add the Network Identity Manager AFS Provider to AMD64 builds. Since 1.5.22 * A new registry value, "BlockSize", can now be used to adjust the size of the internal buffers used to store file data. The default is 4KB. When set, the values 1..1024 specify multiples of 4KB. Values > 1024 specify actual block sizes and must be multiples of 4KB. The actual block size in KB can not be larger than the chunk size which defaults to 1MB. HKLM\SYSTEM\CurrentControlSet\Services\TransarcAfsDaemon\Parameters (DWORD) BlockSize * pts.exe and ptserver.exe built with -DSUPERGROUPS * Service Manager shutdown hints have been added. The hint specifies that it may take the AFS client service up to two minutes to shutdown. * Fix the recursion detection feature introduced in 1.5.22. The previous implementation broke the evaluation of paths using ../path or ./path. It also broke the evaluation of symlinks to absolute paths. For example, /afs/cell/path. * Fix an uninitialized variable in cm_MakeDir that could result in crash if the requested directory could not be created. * Fix a the VolumeStatusNotification log messages to save the input string in the circular log buffer so garbarge won't be output to afsd.log when the log is dumped. * Increase the SMB Maximum Path length to 260 characters from 256 as that is what CIFS supports. * On 64-bit Windows, use a unique description string for the 32-bit AFS Shell Extension. Since 1.5.21 * In the AFS Admin Library, replaced all of the Ubik_Call(XXX_RPC,...) calls with Ubik_XXX_RPC(...). This allows parameter checking and proper type conversions to be performed. This is crucial when passing parameters that are 64-bit wide on systems in which 'long' is a 32-bit value. Otherwise, the parameter list on the stack is interpretted incorrectly and the function not only doesn't succeed but it might corrupt memory and if lucky crash the application. The only program that we care about that uses this library is the AFS Server Manager. Now it doesn't crash. * Fixed smb directory searches for non-wildcard names. The optimized function should not have set the bulk in progress flag. This would adversely affect later directory searches that required a bulk search. * Detect infinite recursions (up to 512 stat cache objects in a chain.) If an infinite recursion is detected, return an error to stop the CIFS client from querying us forever. * Executables executed out of AFS name space can have their pages swapped out by Windows. Those pages will be reloaded when they are required. However, if the cache manager no longer has a callback and all of the file servers with the volume data are down, then the application will crash due to the inability to read the required page. We now track the down time of each server. If the callback expires after the server that issued it went down and all servers are down, we delay the expiration to permit the data in the cache to be continue to be used by Windows or an application. * The Windows AFS client has always had very poor performance with regards to directory management. In the case of directory updates caused by create, rename,and delete operations, the AFS cache manager will now perform local directory updates when possible in order to avoid re-reading the directory from the file server. This will be done in whenever both of the following conditions are true: - the data version on the directory increased by one as a result of the operation - all of the directory buffers necessary to make the change are present in the cache * The error message in the AFS Control Panel describing the need to be a Windows Administrator has been replaced with a message describing the need to be in the AFS Admins Group. * If the vldb server list is empty when attempting to evaluate a cell mountpoint it was possible for a crash to occur. This can only happen if there is an existing mount point and the is a failure attempting to load the server list from the CellServDB file or via AFSDB queries. * dirty buffers only have their dirty bytes stored to the file server instead of the entire chunksize * the default chunksize has been increased from 128KB to 1MB Since 1.5.20 * changed the enum values for cm_serverRef_t state info to use a private name space to avoid collisions (srv_) * added a srv_deleted state for cm_serverRef_t objects. This state is set when cm_FreeServerList() is called with the CM_FREESERVERLIST_DELETE flag set. cm_FreeServerList() may not always delete the cm_serverRef_t from the list if it is still in use by another thread. the srv_deleted state means the object's contents are no longer valid and it must be skipped. It will be deleted the next time the object is freed and the refcount hits zero. * the srv_deleted state is also used when a file server reports either VNOVOL or VMOVED instead of marking the cm_serverRef_t as offline. This is done to prevent additional usage of the stale vldb data while waiting for the update volume request to complete. * added a state field to the cm_volume_t object (enum volstate vl_ name space) that maintains the state of the volume based upon the states of all of the cm_serverRef_t and cm_server_t objects. * modified cm_UpdateVolume() to set the state of the cm_volume_t RW, RO, and BK to either vl_alldown or vl_online. There can't be any other states because cm_UpdateVolume() destroys any previous knowledge we might have had regarding busy or offline volume status * modified cm_UpdateVolume() to update the volume name in the cm_volume_t to the volume base name if the previous value was a volume ID. * modified cm_FollowMountPoint() to check to see if the volume name is a volume ID and if so call cm_GetVolumeByID instead of cm_GetVolumeByName. This ensures that volume IDs are always looked up as numeric values. There is no longer a need to maintain a separate cm_volume_t containing the string representation of the ID value. * Added a flags parameter to cm_GetVolumeByName() and cm_GetVolumeByID(). The first flag is a "CREATE" flag which is set by all existing calls. The flag is not set by calls to cm_GetVolumeByID() from the server probe code when volume status is being updated. We do not want the server probe operation to result in additional turnover in the cached volume data. The second flag is NO_LRU_UPDATE which is set when the server probe code updates the volume status. This flag will be used to prevent the server probe operation from changing the order of the least recently used queue. * Modified cm_GetVolumeByName to ensure that only one cm_volume_t is allocated for a given set of normal, readonly, and backup volumes regardless of whether or not the volume is accessed via name or ID number. The cm_volume_t namep field is always the base name of the volume. * Added a new volume state, vl_unknown. This state is used as the initial state for all cm_volume_t when the cache manager starts, for each cm_volume_t at creation, and for each cm_volume_t when recycling. The cache manager does not know the state of all volumes in the world, only those that are in the cache and for which it has queried the VLDB and hosting file servers. * modified cm_GetVolumeByName() to initialize the state of a volume to vl_unknown. The actual state will be set when a cm_VolumeUpdate() call completes successfully. * changed name of scache hash table variables to avoid ambiguity when adding hash tables for volumes * fix a buffer overrun in sys\pioctl_nt.c pioctl(). * modified cm_UpdateVolume() to handle the case in which there is no RW volume but there is are RO volumes for a given base name. This is done by querying for the ".readonly" volume name if the base name does not exist in the VLDB. We never query for the .backup name because under the current usage model a .backup volume may only exist on the server that the read-write volume is located. If there is no RW volume, there can be no .backup. * Added four hash tables for cm_volume_t objects to improve the search time of cm_GetVolumeByID(), cm_GetVolumeByName() and cm_ForceUpdateVolume(). One each for Name, RWID, ROID, and BKID. Three ID hash tables are necessary as long as it is desireable to maintain a single cm_volume_t containing all of the related RW, RO, and BK volume data. Having the RW and RO volume data in the same object is necessary for the implementation of cm_GetROVolumeID() which returns either the RO or RW ID depending upon the existence of RO volume instances. * Added a volume LRU queue so that volume reuse becomes fairer. This does not replace the all Volumes list which is used when it is desireable to walk a list of all the volumes whose order is not going to change out from underneath you which makes it safe to drop the cm_volumeLock. * handles volume hash table updates where volume name to volume ID number changes. The volume name remains constant in the cm_volume_t. if a vos rename is performed, the name of the volume will change and the volume IDs will be updated. Subsequent access to the old volume ID will create a new cm_volume_t with the new name. * Added a daemon thread operation to query the state of volumes listed as busy or offline. cm_CheckBusyVolumes() calls RXAFS_GetVolumeStatus() for each volume ID that is marked vl_busy or vl_offline. If the volume is now online, the status on the volume is updated. The default period is 600 seconds. This can be configured with the BusyVolumeCheckInterval registry value. * Added prototype for smb_IoctlPrepareRead() which was missing a return type in the function definition. * Added volume id lists to the cm_server_t. These lists are allocated in blocks of ~32 IDs. When a cm_PingServer() detects a change in server state, the state of the cm_volume_t is updated. * Added volID to the cm_serverRef_t object. volID is used to identify the volume for which the object is a referral. cm_FreeServerList() uses the volID to remove the volume from the cm_server_t. * In cm_Analyze, when VNOVOL or VMOVED are received, call cm_ForceVolumeUpdate() to force a refresh of the volume location data. * Added cm_VolumeStatusNotification() which is used at the moment to log volume status changes to the trace log. It will also be used as the access point to the File System Filter driver notification engine. * Added an all cm_scache_t list to cm_data. This replaces the use of the stat cache LRU queue when we need to enumerate all entries. The LRU list order is not static and when using it to enumerate all entries it can result in items being missed or items being processed more than once. * Modified cm_Analyze(). Instead of reseting the busy or offline state of a volume and forcing a retry of the operation cm_Analyze will defer to the background daemon thread that will update the state once every 600 seconds. * Added the automatic generation of a Freelance ".root" read-write mountpoint that refers to the root.afs volume of the workstation cellname at the time the mountpoint is created. * re-write cm_Analyze to make better use of the known volume status. VL_Server queries cannot result in CM_ERROR_ALLOFFLINE messages. * renamed cm_CheckBusyVolumes to cm_CheckOfflineVolumes. busy volumes will be reset to srv_non_busy by the function but there is no mechanism for querying the busy state other than by attempting to access the resource. * cm_Analyze will query the state of an offline volume before deciding whether or not to retry when all volume instances are offline. * the algorithm used after an IP address list change detection has been modified. we now check the state of the VLDB servers, then reset the rx connections, and finally check the state of the file servers. Previously we flushed the rx connections and then checked the servers in whatever random order they were first discovered. * fix the volume status reported by "fs examine" * various improvements to the AFS Network Identity Manager Provider. - Don't access freed objects after the window has been destroyed. - Write back the AFS cell list in the identity configuration even when its empty. - Disable all use of the provider when AFS is disabled for a particular identity. * Fix cm_cell_t leak. When evaluating a mountpoint that uses an alias instead of the full cellname, double check the full cell name and see if we have a matching cell before allocating a new one. * Dump more data with "fs memdump". All volumes and scaches and now cells. * Reverse the order of the all cells list. This ensures that the workstation cell is always first in the list. * If we recognize the server from which a callback revoke was received, then we can ensure that we only invalidate the status information for cm_scache_t objects belonging to that cell. * When building for amd64, use APPVER 5.02 as we do not support 64-bit Windows 2000 and explicitly state the machine type in the link flags. * no longer treat VMWare network adapters as equivalent to a loopback adapter. For some unknown reason, publishing the "AFS" netbios name on them frequently results in a name collision error. * Use read locks whenever possible instead of write locks when walking the allCellsp list. This permits better use of multiple CPUs. * In 1.5.20 a bug was introduced by the fake status when PRSFS_READ is not present on the directory optimization. It would report mount points and directory objects for which there was no status information as a zero length file. Instead we can use the vnode number of the object to determine if it should be considered to be a directory or a file. If it is odd it is a directory; even it is a file. * Give Back Callbacks to the file servers in response to suspend and shutdown power management events. Only give up callbacks to UP servers and do so with a very short RX dead timeout. (10 seconds) * Fix a race condition in the SMB FID cleanup code that could result in a stat cache mutex never being released. * Fix the graphics files that are installed as part of the IBM Administrators Guide. * Change the behavior of pioctl path parsing to not follow symlinks or mount points during evaluation. This results in the FID being the symlink or mount point and not the object they point to. This is consistent with the behavior of the UNIX client. * Enable AFSDB record lookup for command line tools such as "fs" and "vos". * CellServDB update 2007-07-05 * Added a Volume Status Plug-in Interface that permits third parties to receive notifications when the volume state changes occur. * Ensure that all writes to the afsd_alloc.log file use CR-LF. * Prevent the afsprocmgmt.dll from being unloaded while the background thread it starts is running. * Avoid a race condition when closing smb_fid_t objects. Since 1.5.19 * fix install path of IBM Quick Start Guide when installed by the Wix installer * fix the client so that it can write into directories with only 'li' permissions. * fix installation of 32-bit Shell Extension for 64-bit systems. Install it under its own HKCR keys. * modify the wix installer to remove and upgrade install packages with the same version number. * when flushing volume location data every two hours or in response to "fs checkvolumes", also flush the mount point links in order to force their re-evaluation. * aklog was copying an uninitialized buffer as part of the foreign cell automatic pts registration * when obtaining directory listings, check for read permission on the directory. If read permission does not exist, fake the status information for the directory entries. This improves performance, prevents the client from pounding the file server, and prevents leakage of cached status information. * "fs getcacheparms" output was incorrect. * NetIdMgr AFS Provider should only automatically add token acquisition for cell foo.com if the realm of the cell matches the realm of the identity. * Fix a null pointer dereference in cm_MergeStatus() Since 1.5.18 * network identity manager provider: - Correct for the fact that pr_CreateUser tampers with the contents of the username input buffer. - Take into account that the krb4 credential data structure does not have separate realm fields for the user and service. When krb524 is used with a cross-realm ticket, the realm describes the service not the user. * Many integrated logon changes: - Fix eventlog reporting. Do not attempt to log an event if the event source registration fails. Use DebugEvent0 instead of DebugEvent when there are no parameters. - Modify the LOOKUPKEYCHAIN macro to recognize ERROR_MORE_DATA errors. - Fix the reading of Domain specific configuration for LogonScript and TheseCells. Previously the dwSize value was being overwritten so that subsequent RegQueryValueEx call would fail. - Fix a memory leak in the TheseCells reading code. - Add support for Domain specific "Realm" specification. The realm is the realm to be appended to the username. When logging in as a domain or to the local machine, the specified "Domain" name is not going to be a valid realm name. - Construct a proper principal name based upon the domain specified realm for use in obtaining tokens with KFW. - If the domain specified "TheseCells" list includes the default cell, do not obtain tokens twice. * An unprotected call to the Kerberos v5 function, krb5_free_context(), can result in an invalid memory access exception if the contents of the krb5 profile, krb5.ini, cannot be parsed correctly. The error is located within the afskfw library which is used by afscreds.exe, afssvrmgr.exe, and afslogon.dll. When the error is triggered within afslogon.dll a blue screen condition can occur when the winlogon.exe system process terminates unexpectedly. Since 1.5.17 * Do not stop the afs client service with an assert if the cell name cannot be determined when responding to a "fs whereis" command. * Integrated Logon (afslogon.dll). No longer attempt to preserve Kerberos 5 tickets for the logon session as that job is now supported by KFW 3.1 and above. * The Network Identity Manager plug-in will attempt to remove expired service tickets from the cache. Since 1.5.16 * CellServDB update - GCO Public CellServDB 09 Mar 2007 * AFS Server Manager and AFS Account Manager data cache moved from HKCU\Software\TransarcCorporation to HKCU\Software\OpenAFS to prevent crashes due to data format changes. * Reduce the default UP server probe time from 10 minutes to 5 minutes to match UNIX. This will not solve the NAT port mapping timeout issue because most NATs default to a value less that 5 minutes and this value ensures that the afs client server will start probes 5 minutes after the last probe set ended. The probe period for any one server is therefore longer than 5 minutes. The more servers in the list the longer the time between probes. * Before marking a server as down in cm_Analyze, retry the request using a new rx connection to the server. If the cache manager is behind a NAT, it is possible that the response from the server is being sent to the original address:port from which the rx connection was established. This will appear to the cache manager as the server being down when in fact it is not. Forcing the use of a new rx connection will result in the server responding to the most recent address:port assigned to the client by the NAT. If the server is in fact down, it will simply take a little longer to notice it. Since 1.5.15 * Removing a directory that contained entries was failing with the wrong error code being returned to the CIFS client. * rxdebug -long * rxdebug exponential back-off. don't take down a server that is already struggling to respond. * Network Identity Manager plug-in registers help on the Help menu if it is supported by NIM. (KFW 3.2 and above) * Plug-n-play networking did not always work after coming back from a Windows Suspend. The AFS client service failed to re-compute the LAN adapter to bind to and instead attempted to bind to all LAN adapters. This would polute the public network with the name "AFS" which could lead to conflicts between machines. * Build installers using Microsoft Hotfixes provided at http://tinyurl.com/243svk for Visual Studio C RunTime Library Daylight Savings Time issues. * "fs checkserver" does not require admin privileges unless the probe interval is being changed. Since 1.5.14 * A reference leak was discovered in the mountpoint traversal functionality which resulted in cm_volume_t objects not becoming eligible for re-use. This will trigger a panic condition when more than the maximum number of volumes is accessed. * Fixed the success test for the "fs memdump" operation. Success is now reported as such. Added cm_volume_t object information to the dump file. * A data corruption error has been fixed. Write requests queued for background processing were not retried upon failure. This leads to inconsistencies between the contents of the file in the local cache and the contents of the file on the file server. The implemented fix is to re-queue any request that has failed due to timeout, volume busy, volume offline, server busy, or server offline. Requests are not processed while all servers for a volume are inaccessible. When servers become accessible the background request will be retried. In addition, if a background write fails, do not mark the buffers as clean. Failure to preserve the dirty flag prevents the buffers from being written to the file server in the future. This fix does not address the possibility that the credentials necessary to perform a write request might expire between the time the request is queued and when the request can be processed due to server accessibility. * The Freelance volume does not support per user ACLs. The cm_HaveAccessRights function did not handle this special case. Requests for privileges greater than read|lookup would result in afsd_service.exe entering an infinite loop. ISOBuster is known to cause this behavior. * When deleting files, the SMB Server would attempt to obtain the access permissions for the parent directory instead of for the file itself. This would result in an incorrect assessment of whether or not the file can be deleted. * The Network Identity Manager AFS plug-in has had its string tables updated for consistency with the language used by NIM. All credentials are referred to as credentials instead of tokens. Drop-down combo boxes now in fact drop down. * The AFS Salvager was not properly being built on Windows. This is relevant only if the AFS servers are in use. * The default signal handlers for the AFS servers incorrectly processed SIGQUIT. Instead of stopping the server, an exception was raised. * Fix another volume refcount leak. This one was triggered by an inability to contact the vlservers in order to update the file server list. * Fix checklist control used by the drive mappings tabs in afscreds.exe and afs_control.exe. * Improve output of "fs memdump" related to buffer management. * Fix refcount leak of cm_buf_t objects when prefetching buffers already in the process of being fetched. * Improve cache performance by computing the buffer hash table size based upon the number of buffers so that the average number of entries in a bucket is seven. * Improve cache performance of read/write data by locally updating the dataVersion of all buffers associated with the file on each StoreData or StoreStatus operation provided that the dataVersion was incremented by one and the dataVersion of the buffer matched the original dataVersion of the cached status information for the file. * When recycling cm_scache_t objects, make sure that we clear all of the previous fields. It is no longer the case that we can assume that the stat cache object is being obtained only after a successful FetchStatus call. InlineBulkStatus will allocate stat cache objects for which the no status information is available. * When a file is being opened with the OPEN_ALWAYS disposition, do not require write permissions when the file already exists unless of course the file is being opened requesting write access. * When a file has been opened for read-only access, if the application requests an exclusive lock, obtain a read-lock instead of a write-lock. The purpose of the exclusive lock in this situation is to prevent changes to the file and the full file read lock will provide this guarrantee. Since 1.5.13 * Enforce Unix Mode Write bit to prevent file deletion of read only files. * The CIFS READ and LIST permissions use the same value 0x0001. When a directory is being accessed, check for PRSFS_LOOKUP instead of PRSFS_READ. Since 1.5.12 * Fix computations of short names of mount points. They were broken as part of the directory search optimization. (1.5.13a) * When all buffers are in use, periodically sleep the threads waiting for a buffer to become free while the global buffer lock is not being held in order to permit those threads that can free buffers to do so. * Power Management improvements. Maintain a global flag that specifies whether or not the service is in a suspend state. Do not panic if Netbios() returns NRC_BRIDGE meaning that the lana is no longer valid. Instead, stop the listener threads and if all listener threads are stopped, reset the lana_list. Allow the cm_Daemon() thread to periodically check the state of the smb listeners. If they are all stopped and the service is not suspended, attempt to restart them. If there are no valid lanas, return to the stopped state. * CreateX and NTCreateX use cm_CheckNTOpen() to test whether or not the user is permitted to obtain read or write locks. This function would obtain the lock and then drop it returning whether or not the lock could be obtained. If the lock was in fact required, CreateX/NTCreateX would then obtain it with cm_Lock(). The problem of course being that this pattern results in three RPCs to the file server (lock, unlock, lock). This is reduced to one RPC by implementing cm_CheckNTOpenDone() which frees the allocated byte range lock from cm_CheckNTOpen() after the cm_Lock() call is performed. * Optimize the SMB FindFirst processing for the case in which there are no wildcards. If a cm_Lookup succeeds, generate a response from the stat cache entry we have a callback for. Its cheaper than walking each buffer of directory data associated with the directory stat cache entry when we have thousands of directory entries to search. * Increase the SMB Ioctl MaxData size to support larger token sizes * Disable autorun of the AFS Server Wizard when the AFS Server is installed. * Add AFS Server service dependencies on tcpip and PNP_TDI * Remove the AFS Server Configuration Tool shortcut * Add Freelance mode awareness to AFS Server Configuration Tool Since 1.5.11 * Unlike previous versions of the OS, Vista performs a shutdown on the Microsoft Loopback adapter just like it would on a real adapter. This causes the smb_Listener threads to trigger a panic during a suspend/hibernate power event. The fix is to unbind from the network adapters in response to a suspend/hibernate power event and then rebind to the adapters when a resume power event is received. Note that the resume events are not reliably delivered so it is possible the afs service will not be accessible. However, this is the best we can do. * don't allow environment variables we set in afslogon.dll to be inherited by child processes * force an rx connection reset if VICECONNBAD or VICETOKENDEAD are received * The old dirty buffer synchronization algorithm had a buf_IncrSyncer thread walking the all buffer list periodically searching for dirty buffers to write to the file server. This had several negative results. The algorithm ate up ever increasing amounts of CPU time even when AFS is idle as the size of the cache increases. Also, buffers were written to the file server in an order based upon the original buffer allocation which has nothing to do with the order in which the buffers became dirty. The new algorithm maintains a dirty buffer list. Items are added when the buffer is originally marked dirty. A buffer is only removed from the list by the buf_IncrSyncer when the buffer is no longer dirty. If the list is empty the thread goes back to sleep immediately without additional processing requirements. Since 1.5.10: * Enable renaming of directories from the Explorer Shell when Offline Folders is enabled * An error is reported in response to the SMB ReceiveCoreFlush request when an error has not occurred. Since 1.5.9: * optimize dirty buffer flushes in response to suspend operations do not flush if only loopback adapter is installed do no retry dirty buffer writes * do not reset netbios when performing loopback checks. doing so will break the existing lana bind * remove a deadlock in smb3.c QPathInfo 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 (25 Jan 2006) * Re-enabled LogoffTokenTransfer and LogoffTokenTransferTimeout registry settings. Default is ON and 120 seconds. If set to OFF, tokens will not be destroyed. * Fixed a number of race conditions and reference count problems associated with global queues. * Added a method to detect abandoned smb virtual circuits so their associated file handles, locks, user tokens, and smb session resources can be released. * Added a mechanism to allow user tokens to be preserved during integrated login and be freed after logoff. * 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.