189 lines
4.6 KiB
Plaintext
189 lines
4.6 KiB
Plaintext
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.TH CIFS 4
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.SH NAME
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cifs - Microsoft™ Windows network filesystem client
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.SH SYNOPSIS
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.B cifs
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[
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.B -bdDiv
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] [
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.B -a
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.I auth-method
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] [
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.B -s
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.I srvname
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] [
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.B -n
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.I called-name
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] [
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.B -k
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.I keyparam
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] [
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.B -m
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.I mntpnt
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]
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.I host
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[
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.I share ...
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]
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.SH DESCRIPTION
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.I Cifs
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translates between Microsoft's file-sharing protocol
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(a.k.a. CIFS or SMB) and 9P, allowing Plan9 clients to mount file systems
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(shares or trees in MS terminology) published by such servers.
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.PP
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The root of the mounted directory contains one subdirectory per share,
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always named in lower case, and a few virtual files of mixed case which
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give additional server, session, share, and user information.
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The arguments are:
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.TF "-a\fI auth-method"
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.PD
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.TP
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.BI -a " auth-method"
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.I Cifs
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authenticates using
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.L BNTLM
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by default, but alternative strategies may be
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selected using this option.
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.I Cifs
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eschews cleartext authentication, however
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it may be enabled with the
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.L plain
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auth method.
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The list of currently-supported methods is printed
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if no method name is supplied.
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.IP
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.I "Windows server 2003"
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requires the
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.B BNTLMv2
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method by default, though it can be configured to be more flexible.
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.TP
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.B -b
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Enable file ownership resolution in
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.IR stat (2)
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calls.
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This requires an open and close per file and thus will slow
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.I cifs
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considerably; its use is not recommended.
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.TP
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.B -d
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CIFS packet debug.
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.TP
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.B -D
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9P request debug.
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.TP
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.BI -k " keyparam"
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lists extra parameters which will be passed to
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.IR factotum (4)
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to select a specific key.
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The remote servers's domain is always included in the keyspec,
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under the assumption
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that all servers in a Windows domain share an authentication domain;
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thus
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.I cifs
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expects keys in
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.I factotum
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of the form:
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.RS
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.IP
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.EX
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key proto=pass dom=THEIR-DOMAIN service=cifs
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user=MY-USERNAME !password=XYZZY
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.EE
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.RE
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.TP
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.BI -m " mntpnt"
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set the mount point for the remote filesystem;
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the default is
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.BI /n/ host.
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.TP
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.BI -n " called-name"
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The CIFS protocol requires clients to know the NetBios name of the
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server they are attaching to, the
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.IR Icalled-name .
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If this is not specified on the command line,
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.I cifs
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attempts to discover this name from the remote server.
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If this fails it will then try
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.IR host ,
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and finally it will try the name
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.LR *SMBSERVER .
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.TP
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.BI -s " srvname"
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post the service as
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.BI /srv/ srvname.
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.TP
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.I host
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The address of the remote server to connect to.
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.TP
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.I share
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A list of share names to attach on the remote server; if none is given,
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.I cifs
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will attempt to attach all shares published by the remote host.
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.SS "Synthetic Files"
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Several synthetic files appear in the root of the mounted filesystem:
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.TF Workstations
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.PD
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.TP
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.B Shares
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Contains a list of the currently attached shares,
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with fields giving the share name, disk free space / capacity, the share type,
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and a descriptive comment from the server.
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.TP
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.B Connection
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Contains the username used for authentication,
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server's called name, server's domain,
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server's OS, the time slip between the local host and the server,
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the Maximum Transfer Unit (MTU) the server requested, and optionally a flag
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indicating only guest access has been granted.
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The second line contains a list of capabilities offered by the server which is
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mainly of use for debugging
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.IR cifs .
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.TP
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.B Users
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Each line contains a user's name, the user's full name,
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and a descriptive comment.
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.TP
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.B Groups
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Each line gives a group's name, and a list of the names of the users who
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are members of that group.
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.TP
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.B Sessions
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Lists the users authenticated, the client machine's NetBios name or IP address,
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the time since the connection was established,
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and the time for which the connection has been idle.
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.TP
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.B Domains
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One line per domain giving the domain name and a descriptive comment.
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.TP
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.B Workstations
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One line per domain giving the domain name and a descriptive comment,
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the version number of the OS it is running, and comma-separated list of flags
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giving the features of that OS.
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.TP
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.B Dfsroot
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Top level DFS routing giving the DFS link type, time to live of the data,
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proximity of the server, the Netbios or DNS name and
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a physical path or a machine that this maps to.
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.IP
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DNS paths are usually assigned dynamicially as a form of load balancing.
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.SH SOURCE
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.B /sys/src/cmd/cifs
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.SH SEE ALSO
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.IR factotum (4),
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.IR aquarela (8)
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.SH BUGS
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NetApp Filer compatibility has not yet been tested; there may not be any.
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.PP
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DFS support is unfinished.
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.PP
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Kerberos authentication is unfinished.
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.PP
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NetBios name resolution is not supported, though it is now rarely used.
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.PP
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.I Cifs
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has only been tested against
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.IR aquarela (8),
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Windows 95, NT4.0sp6,
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Windows server 2003, WinXP pro, Samba 3.0, and Samba 2.0 (Pluto VideoSpace).
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No support is attempted for servers predating NT 4.0.
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