SDPD(8)                 NetBSD System Manager's Manual                 SDPD(8)

NAME
     sdpd -- Bluetooth Service Discovery Protocol daemon

SYNOPSIS
     sdpd [-dh] [-c path] [-G group] [-g group] [-u user]

DESCRIPTION
     The sdpd daemon keeps track of the Bluetooth services registered on the
     host and responds to Service Discovery inquiries from the remote Blue-
     tooth devices.

     In order to use any service remote Bluetooth device need to send Service
     Search and Service Attribute or Service Search Attribute request over
     Bluetooth L2CAP connection on SDP PSM (0x0001).  The sdpd daemon will try
     to find matching Service Record in its Service Database and will send
     appropriate response back.  The remote device then will process the
     response, extract all required information and will make a separate con-
     nection in order to use the service.

     Bluetooth applications, running on the host, register services with the
     local sdpd daemon.  Operation like service registration, service removal
     and service change are performed over the control socket.  It is possible
     to query entire content of the sdpd Service Database with sdpquery(1) by
     issuing browse command on the control socket.

     The command line options are as follows:

     -c path
             Specify path to the control socket.  The default path is
             /var/run/sdp.

     -d      Do not detach from the controlling terminal.

     -G group
             Grant permission to members of the group to modify the sdpd Ser-
             vice Database.

     -g group
             Specifies the group the sdpd should run as after it initializes.
             The value specified may be either a group name or a numeric group
             ID.  This only works if sdpd was started as root.  The default
             group name is ``_sdpd''.

     -h      Display usage message and exit.

     -u user
             Specifies the user the sdpd should run as after it initializes.
             The value specified may be either a user name or a numeric user
             ID.  This only works if sdpd was started as root.  The default
             user name is ``_sdpd''.

CAVEAT
     The sdpd daemon will listen for incoming L2CAP connections on a wildcard
     BD_ADDR.

     In case of multiple Bluetooth devices connected to the same host it is
     possible to specify which services should be ``bound'' to which Bluetooth
     device.  Such assignment should be done at service registration time.

     Requests to register, remove or change service can only be made via the
     control socket.  The sdpd daemon will check the peer's credentials and
     will only accept the request when the peer is the superuser, of if the
     peer is a member of the group specified with the -G option.

     The sdpd daemon does not check for duplicated Service Records.  It only
     performs minimal checking on the service data sent in the Service Regis-
     ter request.  It is assumed that application must obtain all required
     resources such as RFCOMM channels etc., before registering the service.

FILES
     /var/run/sdp

SEE ALSO
     sdpquery(1), sdp(3)

HISTORY
     The sdpd daemon first appeared in FreeBSD 5.3 and was imported into
     NetBSD 4.0 by Iain Hibbert under the sponsorship of Itronix, Inc.

AUTHORS
     Maksim Yevmenkin <m_evmenkin@yahoo.com>

BUGS
     Most likely.  Please report if found.

NetBSD 5.0.1                   January 13, 2004                   NetBSD 5.0.1

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