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NAME
     utdevmgrd - Sun Ray enterprise device manager daemon

SYNOPSIS
     /opt/SUNWut/lib/utdevmgrd [ -a authlist ]  [ -c  authfile  ]
     [ -d ]  [ -k  authprops ]  [ -o optroot ]  [ -p port ]  [ -r
     ]  [ -s  sigfile ]  [ -t ]

DESCRIPTION
     The utdevmgrd daemon is responsible  for  brokering  devices
     that  are  attached  to Sun Ray enterprise appliances on the
     interconnect fabric for the purpose  of  remotely  accessing
     the devices for various services. It is also responsible for
     approving services, keeping  an  inventory  of  devices  and
     their  controlling  services,  and  locating  devices on the
     interconnect.

     If either the -a or the -c option is specified,  the  device
     manager  daemon  operates  exclusively in call-back mode. In
     this mode, the device manager only communicates to authenti-
     cation  managers  that are explicitly enabled by authlist or
     authfile and that have requested a call-back. The  call-back
     feature provides a mechanism by which the device manager and
     the authentication manager establish each other's identity.

     The optroot directory (default /tmp/SUNWut) is  shared  with
     other  Sun  Ray  enterprise  server components. Primarily it
     provides the location for a Solaris-compatible  device  tree
     for  each  Sun  Ray  appliance's devices in the sessions and
     units subdirectories.

     The units subdirectory contains a directory for each  appli-
     ance  on  the  interconnect  named by the appliance's serial
     number. Within an appliance's directory, there are the fami-
     liar dev and devices directories that list logical names for
     devices and geographically hierarchical names for devices.

     The sessions directory contains symbolic links into the dev-
     ices directory that indicate which sessions are connected to
     which Sun Ray appliances. The symbolic links are named after
     the  X-Windows server display corresponding to a user's ses-
     sion by display number only (in other words, after  removing
     the server name, which is always a name local to the current
     host, and the screen numbers). The user's  DISPLAY  environ-
     ment  variable  can  then be used to find the devices on the
     'current' appliance. The user's UTDEVROOT environment  vari-
     able achieves this, and can be used to find devices that are
     'currently' accessible. The optroot directory also  includes
     the named pipe with which the device manager communicates to
     device driver services and the session_info directory, which
     contains  user information important to internal workings of
     the device manager.
     The device manager works within a Sun Ray enterprise  server
     group  environment,  which  enables rapid switching to other
     servers and user load  distribution.  In  order  for  device
     managers  on each server in a group to communicate, the dev-
     ice manager must gain access to the group signature file. If
     the  signature  does  not match the one used by other device
     managers in the group, then grouping will fail and  not  all
     devices on all appliances on the interconnect will be avail-
     able on the server, including  devices  on  some  appliances
     being used by users on the server.

     Normally, the device manager finds the group signature  file
     by  looking  into the authentication manager's configuration
     file (/etc/opt/SUNWut/auth.props), but this can  be  changed
     by  using  the  -s  and -k options. If -s is specified, then
     sigfile is read and used as the group signature.  If  -k  is
     specified, then the authprops file is scanned for the gmSig-
     natureFile key and the listed file is  used  for  the  group
     signature.Error  messages  from  utdevmgrd  are logged using
     syslog(3), with a facility value of LOG_DAEMON.

OPTIONS
     The following options are supported:

     -a authlist
           Add the host and port pairs specified in  authlist  to
           the  list of allowed authentication managers. The for-
           mat  of  authlist  is  a  comma  separated   list   of
           hostname:port pairs.

     -c authfile
           Add the host and port pairs  specified  in  the  ASCII
           file  authfile  to  the list of allowed authentication
           managers. The file contains a list  of  authentication
           manager  specifications,  one per line. The specifica-
           tions take the  form  of  hostname  followed  by  port
           number,  separated by white space. Blank lines and any
           line whose first  printable  character  is  ``#''  are
           ignored.

     -d    Enable debugging output.

     -k authprops
           Set the location for the authentication manager's con-
           figuration  file  to  authprops.  This file is used to
           find the group signature file in case the sigfile  key
           was  not  specified. The default for this parameter is
           /etc/opt/SUNWut/auth.props. The key in this file  that
           specifies the group signature is gmSignatureFile.

     -o optroot
           Set the device information root directory to  optroot.
           This  directory  contains  the service named pipe, and
           the units,  sessions,  and  session_info  directories.
           optroot  is generally shared with other Sun Ray enter-
           prise server components.

     -p port
           Set the device manager's listen port to the  specified
           port  value. The device manager defaults to port 7011.
           This is the port by which device services and  authen-
           tication managers contact the device manager.

     -r    Automatically restart the device manager daemon if  it
           exits.  With  this  option,  the device manager daemon
           creates two processes: a child that performs  all  the
           actual  work  and  a  parent  monitoring  process. The
           parent process will restart a child  if  the  previous
           one exits. This enables existing services to re-attach
           to a new child device manager.

     -s sigfile
           Set the path of the group signature file to sigfile.

     -t    Test mode. Relax checking for error returns for  files
           that   are  root  access.  Could  cause  unpredictable
           results on an operational device manager  in  case  of
           true failure.

ENVIRONMENT VARIABLES
     Use:

          DISPLAY
                to get the default X-Windows display number  from
                within the user's environment.

          UTDEVROOT
                to get the devices for the current  session  from
                within the user's environment.


FILES
     The following files are used:

     /etc/opt/SUNWut/auth.permit
           The customary location of the authfile for a system.

     /tmp/SUNWut
           The customary location for temporary files used by Sun
           Ray enterprise server managers, designated by optroot.

     /tmp/SUNWut/.utdevmgr
           The named pipe used for communication between the dev-
           ice manager and device driver services.

     /tmp/SUNWut/units
           The directory containing device directories  for  each
           appliance.  The  directory  names are after the appli-
           ances' serial numbers. Each directory contains  a  dev
           directory and a devices directory.

     /tmp/SUNWut/sessions
           The directory containing links to  appliances  in  the
           units directory, named by X-Windows display number for
           each session. These links change as  users  move  from
           one Sun Ray appliance to another.

     /tmp/SUNWut/session_info
           The directory containing information internal  to  the
           device manager for handling session mobility.

     /etc/opt/SUNWut/auth.props
           The customary location of the authprops file  contain-
           ing  the  authentication  manager settings. The device
           manager looks for the gmSignatureFile key  to  extract
           the location of the group signature file.

     /etc/opt/SUNWut/gmSignature
           The customary location of the sigfile file  containing
           the group signature.

ATTRIBUTES
      See attributes(5) for a description of the following attri-
     bute:

     ____________________________________________________________
    |       Attribute Types       |       Attribute Values      |
    | Availability                |  SUNWuto                    |
    |_____________________________|_____________________________|


SEE ALSO
     utauthd(1M), syslog(3), syslogd(1M), syslog.conf(4)

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