-version 1.16 May 27, 2004
+Version 1.39 November 30, 2005
A Partial List of Missing Features
==================================
for visible, important contributions to this module. Here
is a partial list of the known problems and missing features:
-a) Support for SecurityDescriptors for chmod/chgrp/chown so
-these can be supported for Windows servers
+a) Support for SecurityDescriptors(Windows/CIFS ACLs) for chmod/chgrp/chown
+so that these operations can be supported to Windows servers
-b) Better pam/winbind integration
+b) Mapping POSIX ACLs (and eventually NFSv4 ACLs) to CIFS
+SecurityDescriptors
-c) multi-user mounts - multiplexed sessionsetups over single vc
-(ie tcp session) - prettying up needed
+c) Better pam/winbind integration (e.g. to handle uid mapping
+better)
d) Kerberos/SPNEGO session setup support - (started)
using FindNotify or equivalent. - (started)
g) A few byte range testcases fail due to POSIX vs. Windows/CIFS
-style byte range lock differences
+style byte range lock differences. Save byte range locks so
+reconnect can replay them.
-h) quota support
+h) Support unlock all (unlock 0,MAX_OFFSET)
+by unlocking all known byte range locks that we locked on the file.
-i) support for the Linux 2.5 kernel new feature get_xattr and set_xattr
-which will allow us to expose dos attributes as well as real
-ACLs. This support has been started in the current code, but is
-ifdeffed out.
+i) quota support (needs minor kernel change since quota calls
+to make it to network filesystems or deviceless filesystems)
-k) finish writepages support (multi-page write behind for improved
-performance) and syncpage
+j) investigate sync behavior (including syncpage) and check
+for proper behavior of intr/nointr
-l) hook lower into the sockets api (as NFS/SunRPC does) to avoid the
+k) hook lower into the sockets api (as NFS/SunRPC does) to avoid the
extra copy in/out of the socket buffers in some cases.
-m) finish support for IPv6. This is mostly complete but
-needs a simple inet_pton like function to convert ipv6
-addresses in string representation.
+l) finish support for IPv6. This is mostly complete but
+needs a simple conversion of ipv6 to sin6_addr from the
+address in string representation.
-o) Better optimize open (and pathbased setfilesize) to reduce the
+m) Better optimize open (and pathbased setfilesize) to reduce the
oplock breaks coming from windows srv. Piggyback identical file
opens on top of each other by incrementing reference count rather
than resending (helps reduce server resource utilization and avoid
spurious oplock breaks).
-p) Improve performance of readpages by sending more than one read
-at a time when 8 pages or more are requested. Evaluate whether
-reads larger than 16K would be helpful.
+o) Improve performance of readpages by sending more than one read
+at a time when 8 pages or more are requested. In conjuntion
+add support for async_cifs_readpages.
-q) For support of Windows9x/98 we need to retry failed mounts
-to *SMBSERVER (default server name) with the uppercase hostname
-in the RFC1001 session_init request.
+p) Add support for storing symlink info to Windows servers
+in the Extended Attribute format their SFU clients would recognize.
-r) Add Extended Attributed support (for storing UID/GID info
-to Windows servers)
+q) Finish fcntl D_NOTIFY support so kde and gnome file list windows
+will autorefresh (partially complete by Asser). Needs minor kernel
+vfs change to support removing D_NOTIFY on a file.
-s) Finish fcntl D_NOTIFY support so kde and gnome file list windows
-will autorefresh
+r) Add GUI tool to configure /proc/fs/cifs settings and for display of
+the CIFS statistics (started)
-t) Add GUI tool to configure /proc/fs/cifs settings and for display of
-the CIFS statistics
+s) implement support for security and trusted categories of xattrs
+(requires minor protocol extension) to enable better support for SELINUX
-KNOWN BUGS (updated May 27, 2004)
+t) Implement O_DIRECT flag on open (already supported on mount)
+
+u) Create UID mapping facility so server UIDs can be mapped on a per
+mount or a per server basis to client UIDs or nobody if no mapping
+exists. This is helpful when Unix extensions are negotiated to
+allow better permission checking when UIDs differ on the server
+and client. Add new protocol request to the CIFS protocol
+standard for asking the server for the corresponding name of a
+particular uid.
+
+v) Add support for CIFS Unix and also the newer POSIX extensions to the
+server side for Samba 4.
+
+w) Finish up the dos time conversion routines needed to return old server
+time to the client (default time, of now or time 0 is used now for these
+very old servers)
+
+x) Add support for OS/2 (LANMAN 1.2 and LANMAN2.1 based SMB servers)
+
+y) Finish testing of Windows 9x/Windows ME server support (started).
+
+KNOWN BUGS (updated April 29, 2005)
====================================
+See http://bugzilla.samba.org - search on product "CifsVFS" for
+current bug list.
+
1) existing symbolic links (Windows reparse points) are recognized but
can not be created remotely. They are implemented for Samba and those that
-support the CIFS Unix extensions but Samba has a bug currently handling
-symlink text beginning with slash
+support the CIFS Unix extensions, although earlier versions of Samba
+overly restrict the pathnames.
2) follow_link and readdir code does not follow dfs junctions
but recognizes them
3) create of new files to FAT partitions on Windows servers can
succeed but still return access denied (appears to be Windows
server not cifs client problem) and has not been reproduced recently.
NTFS partitions do not have this problem.
-4) debug connectation lock test case 10 which fails against
+4) debug connectathon lock test case 10 which fails against
Samba (may be unmappable due to POSIX to Windows lock model
differences but worth investigating). Also debug Samba to
see why lock test case 7 takes longer to complete to Samba
Misc testing to do
==================
1) check out max path names and max path name components against various server
-types. Return max path name in stat -f information
+types. Try nested symlinks (8 deep). Return max path name in stat -f information
2) Modify file portion of ltp so it can run against a mounted network
share and run it against cifs vfs.
and when signing is disabled to request larger read sizes (larger than
negotiated size) and send larger write sizes to modern servers.
-4) More exhaustively test the recently added NT4 support against various
-NT4 service pack levels.
-
+4) More exhaustively test against less common servers. More testing
+against Windows 9x, Windows ME servers.
git://git.onelab.eu / linux-2.6.git / blobdiff