[OpenAFS-win32-devel] Please test the latest daily builds

[Jeffrey Altman]

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The following is a list of the changes which have been implemented in 
the Windows OpenAFS
client since 1.2.10.  Most of these changes are subsequent to the 1.3.52 
release.  These changes
are significant in nature.  Although I have been testing them I would 
like to obtain a wider set
of testers before issuing the next formal release.  With these changes 
the Windows OpenAFS
Client should be much more stable.  It will use less memory and fewer 
kernel objects.  It will page
fault less frequently and should therefore perform faster.  The SMB code 
has had numerous
bugs fixed and should generate fewer protocol errors.  The AFS client 
should operate over the
Cisco IPSec VPN client.  It is my hope that the next release can be 
considered the "Best Available"
release for Windows and not just the "Supported" release for Windows.

The (almost) daily builds can be found at

    http://web.mit.edu/~jaltman/Public/OpenAFS/
     /afs/athena.mit.edu/user/j/a/jaltman/Public/OpenAFS/

Please test.  Positive confirmations are as useful as negative reports.

Here is the list of changes:

* 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 "%MACHINE%-AFS"
  when the loopback adapter is in use.

* 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
    \\<netbiosName>\<cellname>

* 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 <cell name> 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.





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