| BTPAND(8) | System Manager's Manual | BTPAND(8) |
btpand —
btpand |
[-i ifname]
[-m mode]
-a addr
-d device
{-s service |
-S service
[-p psm]} |
btpand |
[-c path]
[-i ifname]
[-l limit]
[-m mode]
[-p psm]
-d device
{-s service |
-S service} |
btpand daemon handles Bluetooth Personal Area
Networking services in the system. It can operate in client mode as a Personal
Area Networking User (PANU) or in server mode as Network Access Point (NAP),
Group ad-hoc Network (GN) or PANU host. btpand
connects to the system via a tap(4)
virtual Ethernet device and forwards Ethernet packets to remote Bluetooth
devices using the Bluetooth Network Encapsulation Protocol (BNEP).
The PANU client is the device that uses either the NAP or GN service, or can talk directly to a PANU host in a crossover cable fashion.
A GN host forwards Ethernet packets to each of the connected PAN users as needed but does not provide access to any additional networks.
The NAP service provides some of the features of an Ethernet bridge, with the NAP host forwarding Ethernet packets between each of the connected PAN users, and a different network media.
Note, the only differences between NAP and GN services as
implemented by btpand are in the SDP service record.
The bridging of packets by the NAP must be configured separately with
brconfig(8).
The options are as follows:
-a
addressbtpand will attempt to resolve the
address via the
bt_gethostbyname(3)
call.-c
path-d
devicebtpand will
attempt to resolve the address via the
bt_devaddr(3) call.
btpand will set the
tap(4) interface physical
address to the BDADDR of the Bluetooth radio.-i
ifnamebtpand uses the
tap(4) driver to create a new
network interface for use. Use this option to select a specific
tap(4) device interface which
must already be created.-l
limit-m
mode-p
psm-s
service-S
service-s except that
btpand will not use SDP services for connection
setup.When providing networking services, the Bluetooth PAN profile says that the ‘Class of Device’ property of the bluetooth controller SHALL include Networking capability (set bit 0x020000). See btconfig(8) for details.
After btpand has set up the client or
server connection and opened the
tap(4) interface, it will create
a pid file and detach.
btpand utility exits 0 on success,
and >0 if an error occurs.
ifconfig tap1 createbtpand -a host -d ubt0 -s NAP -m
encrypt -i tap1dhcpcd -q -b tap1Will create an encrypted connection to the NAP on host, and link that to the tap1 interface.
btpand -d ubt0 -s GN -m
authWill create a Group Network requiring authentication to join and register the GN service with the local SDP server.
The “Personal Area Networking Profile” and “Bluetooth Network Encapsulation Protocol” specifications are available at http://www.bluetooth.com/
There is no way to set net type or multicast address filters.
btpand does not do any address routing
except to directly connected unicast addresses. All other packets are
multicast.
As btpand uses the BDADDR of the Bluetooth
radio as the physical address of the tap, only one instance can be run per
radio.
btpand can only provide a single
service.
| January 17, 2019 | NetBSD 10.0 |