The CIFS VFS support for Linux supports many advanced network filesystem
-features such as heirarchical dfs like namespace, hardlinks, locking and more.
+features such as hierarchical dfs like namespace, hardlinks, locking and more.
It was designed to comply with the SNIA CIFS Technical Reference (which
supersedes the 1992 X/Open SMB Standard) as well as to perform best practice
practical interoperability with Windows 2000, Windows XP, Samba and equivalent
mount.
domain Set the SMB/CIFS workgroup name prepended to the
username during CIFS session establishment
- uid If CIFS Unix extensions are not supported by the server
- this overrides the default uid for inodes. For mounts to
- servers which do support the CIFS Unix extensions, such
- as a properly configured Samba server, the server provides
- the uid, gid and mode. For servers which do not support
- the Unix extensions, the default uid (and gid) returned on
- lookup of existing files is the uid (gid) of the person
+ uid Set the default uid for inodes. For mounts to servers
+ which do support the CIFS Unix extensions, such as a
+ properly configured Samba server, the server provides
+ the uid, gid and mode so this parameter should not be
+ specified unless the server and clients uid and gid
+ numbering differ. If the server and client are in the
+ same domain (e.g. running winbind or nss_ldap) and
+ the server supports the Unix Extensions then the uid
+ and gid can be retrieved from the server (and uid
+ and gid would not have to be specifed on the mount.
+ For servers which do not support the CIFS Unix
+ extensions, the default uid (and gid) returned on lookup
+ of existing files will be the uid (gid) of the person
who executed the mount (root, except when mount.cifs
is configured setuid for user mounts) unless the "uid="
(gid) mount option is specified. For the uid (gid) of newly
created files and directories, ie files created since
the last mount of the server share, the expected uid
- (gid) is cached as as long as the inode remains in
+ (gid) is cached as long as the inode remains in
memory on the client. Also note that permission
checks (authorization checks) on accesses to a file occur
at the server, but there are cases in which an administrator
the client. Note that the mount.cifs helper must be
at version 1.10 or higher to support specifying the uid
(or gid) in non-numberic form.
- gid If CIFS Unix extensions are not supported by the server
- this overrides the default gid for inodes.
+ gid Set the default gid for inodes (similar to above).
file_mode If CIFS Unix extensions are not supported by the server
this overrides the default mode for file inodes.
dir_mode If CIFS Unix extensions are not supported by the server
the local process on newly created files, directories, and
devices (create, mkdir, mknod). If the CIFS Unix Extensions
are not negotiated, for newly created files and directories
- instead of using the default uid and gid specified on the
+ instead of using the default uid and gid specified on
the mount, cache the new file's uid and gid locally which means
that the uid for the file can change when the inode is
reloaded (or the user remounts the share).
user_xattr Allow getting and setting user xattrs as OS/2 EAs (extended
attributes) to the server (default) e.g. via setfattr
and getfattr utilities.
- nouser_xattr Do not allow getfattr/setfattr to get/set xattrs
+ nouser_xattr Do not allow getfattr/setfattr to get/set/list xattrs
mapchars Translate six of the seven reserved characters (not backslash)
*?<>|:
to the remap range (above 0xF000), which also
create device files and fifos in a format compatible with
Services for Unix (SFU). In addition retrieve bits 10-12
of the mode via the SETFILEBITS extended attribute (as
- SFU does). In the future the bottom 9 bits of the mode
+ SFU does). In the future the bottom 9 bits of the
mode also will be emulated using queries of the security
descriptor (ACL).
-sec Security mode. Allowed values are:
+ sign Must use packet signing (helps avoid unwanted data modification
+ by intermediate systems in the route). Note that signing
+ does not work with lanman or plaintext authentication.
+ sec Security mode. Allowed values are:
none attempt to connection as a null user (no name)
krb5 Use Kerberos version 5 authentication
krb5i Use Kerberos authentication and packet signing
-V print mount.cifs version
-? display simple usage information
-With recent 2.6 kernel versions of modutils, the version of the cifs kernel
+With most 2.6 kernel versions of modutils, the version of the cifs kernel
module can be displayed via modinfo.
Misc /proc/fs/cifs Flags and Debug Info
must use plaintext passwords 0x20020
(reserved for future packet encryption) 0x00040
-cifsFYI If set to one, additional debug information is
- logged to the system error log. (default 0)
+cifsFYI If set to non-zero value, additional debug information
+ will be logged to the system error log. This field
+ contains three flags controlling different classes of
+ debugging entries. The maximum value it can be set
+ to is 7 which enables all debugging points (default 0).
+ Some debugging statements are not compiled into the
+ cifs kernel unless CONFIG_CIFS_DEBUG2 is enabled in the
+ kernel configuration. cifsFYI may be set to one or
+ nore of the following flags (7 sets them all):
+
+ log cifs informational messages 0x01
+ log return codes from cifs entry points 0x02
+ log slow responses (ie which take longer than 1 second)
+ CONFIG_CIFS_STATS2 must be enabled in .config 0x04
+
+
traceSMB If set to one, debug information is logged to the
system error log with the start of smb requests
and responses (default 0)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff