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sdpd(8) [freebsd man page]

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

sdpd -- Bluetooth Service Discovery Protocol daemon SYNOPSIS
sdpd [-dh] [-c path] [-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 Bluetooth 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 sep- arate connection 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 sdpcontrol(8) by issuing browse command on the control socket. The command line options are as follows: -d Do not detach from the controlling terminal. -c path Specify path to the control socket. The default path is /var/run/sdp. -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 ``nobody''. -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 ``nobody''. 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 Blue- tooth 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 peer's credentials and will only accept the request if the application has the same effective user ID as the ``root'' user ID. The sdpd daemon does not check for duplicated Service Records. It only performs minimal checking on the service data sent in the Service Register 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
sdp(3), sdpcontrol(8) AUTHORS
Maksim Yevmenkin <> BUGS
Most likely. Please report if found. BSD
January 13, 2004 BSD

Check Out this Related Man Page

SDPCONTROL(8)						    BSD System Manager's Manual 					     SDPCONTROL(8)

sdpcontrol -- Bluetooth Service Discovery Protocol query utility SYNOPSIS
sdpcontrol -h sdpcontrol -a address command [parameters ...] sdpcontrol -l [-c path] command [parameters ...] DESCRIPTION
The sdpcontrol utility attempts to query the specified Service Discovery Protocol (SDP) server. Remote SDP servers are identified by their address. Connection to the local SDP server is made via the control socket. The sdpcontrol utility uses Service Search Attribute Requests and prints results to standard output and error messages to standard error. The options are as follows: -a address Connect to the remote device with the specified address. The address can be specified as BD_ADDR or a name. If a name was speci- fied, the sdpcontrol utility attempts to resolve the name via bt_gethostbyname(3). -c path Specify path to the control socket. The default path is /var/run/sdp. -h Display usage message and exit. -l Query the local SDP server via the control socket. command One of the supported commands (see below). The special command help can be used to obtain a list of all supported commands. To get more information about a specific command, use help command. parameters One or more optional space separated command parameters. COMMANDS
The currently supported node commands in sdpcontrol are: Browse Search EXIT STATUS
The sdpcontrol utility exits 0 on success, and >0 if an error occurs. SEE ALSO
bluetooth(3), sdp(3) AUTHORS
Maksim Yevmenkin <> CAVEATS
The sdpcontrol utility only implements client side functionality. The sdpcontrol utility only requests the following attributes from the SDP server: 1. Service Record Handle 2. Service Class ID List 3. Protocol Descriptor List 4. Bluetooth Profile Descriptor List BSD
February 7, 2015 BSD
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