.TH AQUARELA 8
.SH NAME
aquarela \- CIFS server
.SH SYNOPSIS
.B aquarela
[
.B -np
]
[
.B -d
.I debug
]
[
.B -u
.I N
]
[
.B -w
.I workgroup 
]
.SH DESCRIPTION
.I Aquarela
provides
.SM CIFS
(once known as
.SM SMB\c
)
access to Plan 9 file servers.
It announces and subsequently listens on
.B tcp!*!445
for connections to the individual file hierarchies called ``shares'' by
.SM CIFS\c .
Users are authenticated with their Inferno/\c
.SM POP
password.
Each session is managed by a process running as the authenticated user.
Two persistent processes handle listening, session setup, and housekeeping.
.PP
An
.I aquarela
.SM CIFS
share corresponds to a directory under
.BR /n .
A client request for a specific share, say,
.BR share ,
causes
.I aquarela
to serve
.B /n/share.
If that path is not already a mountpoint, a
.IR 9fs (4)
connection to the file server
.B share
is attempted.
If connection succeeds, a file hierarchy rooted at
.B /n/share
is finally presented to the client.
The client request fails otherwise.
Requests for the protocol equivalent of
.B /
are satisfied with a one-level directory containing only the default share,
.BR local.
.PP
The options are:
.TP
.BI -u " N
Send Unicode.
For
.IR N ,
.B 1
enables,
.B 0
disables Unicoding of file names and metadata.
There is no code page support, so
.I aquarela
emits
.SM UTF
if
.I N
is
.BR 0 .
.TP
.BI -w " workgroup
Set
.I workgroup
(or ``primary domain'') of server.
Default
.BR PLAN9 .
.TP
.B -n
Enable limited
.SM NETBIOS
service.
.I Aquarela
will register with the ``master browser'' for
.I workgroup
and listen on
.B tcp!*!139
for name resolution queries.
This works only in tandem with a complete
.SM NETBIOS
master name server, like that provided by
.SM UNIX
.IR nmbd (8).
.SM NETBIOS
is not required for
.SM CIFS
file service.
.PD
.SH EXAMPLE
To start a
.SM CIFS
server on system
.B plan9
as a member of
.BR WORKGROUP :
.IP
.EX
aquarela -u 1 -w WORKGROUP &
.EE
.PP
To make 
.BR plan9 's 
.B dump
filesystem available as drive
.B Y:
on a Windows machine:
.IP
.EX
net use Y: \\\\plan9.example.com\\dump
.EE
.SH FILES
.TP
.B /n/local
Default
.SM CIFS
share
.TP
.B /sys/log/aquarela
Log file, if it exists
.PD
.SH SOURCE
.B /sys/src/cmd/aquarela
.SH SEE ALSO
.IR 9fs (4),
.IR UTF (6)
.SH DIAGNOSTICS
Log messages are appended to
.B /sys/log/aquarela
if it exists. The
.B -p
option prints them on standard output as well.
The
.B -d
option adds verbose output about
.I debug
to the log messages, where
.I debug
is one of:
.TF any-smb-name
.TP
.B allcmds
All
.SM CIFS
requests and responses.
.TP
.B tids
Connections and disconnections per-share.
.TP
.B sids
Creation and deletion of search ids.
.TP
.B fids
Creation and deletion of file ids.
.TP
.B rap2
.SM RAP
calls.
.TP
.B find 
Transaction2 find commands.
.TP
.B query
Transaction2 query commands.
.TP
.B sharedfiles
All files opened.
.TP
.B poolparanoia 
Draconian error checking in memory allocator.
.TP
.B sessions
Connections and disconnections on server.
.TP
.B rep
Regular expression conversions.
.TP
.B locks
Locking activity.
.TP
.I any-smb-name
Debug only
.B SMB_
requests or
.B transaction2
sub-requests
(e.g.,
.B SMB_COM_SESSION_SETUP_ANDX
or
.BR SMB_TRANS2_FIND_FIRST2 )
matching symbolic name
.I any-smb-name. 
.TP
.BI 0x nn
Debug only messages with this hexadecimal id.
.PD
.SH BUGS
The first login attempt from a given Windows login session often fails erroneously - try again.
The server disk space reported by some clients is inaccurate.
Some clients can't rename directories.
Write attempts without sufficient permissions fail (correctly), but appear on client to temporarily succeed.
.PP
The multitude of diagnostics both in the program and in this manual page reflect the in-progress nature of the code.
.PP
This program should probably be named
.IR cifsserver .