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NetBSD 6.1.5 - man page for bthcid (netbsd section 8)

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

     bthcid -- Bluetooth Link Key/PIN Code Manager

     bthcid [-fn] [-d device] [-m mode] [-s socket_name]
     bthcid [-h]

     The bthcid daemon handles Link Key and PIN code requests for Bluetooth devices.  It opens a
     raw HCI socket and listens for the following HCI events.

	   bthcid scans the /var/db/bthcid.keys file for a cached link key matching the remote
	   device BD_ADDR and, if found, the Link_Key_Request_Reply will be sent back to the
	   device, otherwise the Link_Key_Request_Negative_Reply will be sent.

	   When a new link key is created by the device, it will be cached for future use in the
	   /var/db/bthcid.keys link keys file, which will be created if it does not already

	   The bthcid daemon checks its PIN cache for a matching remote device entry.  If no PIN
	   is found, the bthcid daemon will send a message to any PIN clients that have regis-
	   tered, with the device details and a timeout value.	When no clients are available or
	   the timeout has expired, bthcid will send a PIN_Code_Request_Negative_Reply back to
	   the device.	When a PIN is found, or if a client responds within the timeout period, a
	   PIN_Code_Request_Reply will be sent back to the device.

	   PINs received from clients will be cached for 5 minutes until used, and may be added
	   to the cache prior to pairing with the btpin(1) utility.

     Some of the functionality of bthcid can be handled by the Bluetooth controller directly, and
     cached Link Keys may be examined, deleted or moved to device storage using the btkey(1) pro-

     The command line options are as follows:

     -d device
	   Specify the local Bluetooth device address.	The default is BDADDR_ANY.

     -f    Run in foreground (do not detach).

     -h    Display usage message and exit.

     -m    Specify the file mode access bits for the PIN client socket.  The default is to allow
	   readwrite access to user and group (0660).

     -n    Do not listen for PIN clients.

     -s socket_name
	   Specify the socket name to listen on for PIN clients.  The default path is


     btkey(1), btpin(1), bluetooth(4), btconfig(8)

     The bthcid daemon first appeared in FreeBSD 5.3 as hcsecd.  It was ported to NetBSD 4.0 with
     its present name and extended to support PIN clients by Iain Hibbert under the sponsorship
     of Itronix, Inc.

     Maksim Yevmenkin <m_evmenkin@yahoo.com>
     Iain Hibbert

BSD					September 29, 2006				      BSD

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