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. * 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.