commit | 8b5ce64c2f5bbf106cabfd015bcb3bdb2e0248d3 | [log] [tgz] |
---|---|---|
author | Li Cao <irvingcl@google.com> | Tue Jan 09 14:47:13 2024 +0800 |
committer | GitHub <noreply@github.com> | Mon Jan 08 22:47:13 2024 -0800 |
tree | c9141bf3f932aecf16950b77ced1d29cc0a77da5 | |
parent | d6b2b9e67f4f9afeaf4de1dbe9d98c93af387a11 [diff] |
[spinel] handle new spinel net role DISABLED (#517)
wpantund
is a user-space network interface driver/daemon that provides a native IPv6 network interface to a low-power wireless Network Co-Processor (or NCP). It was written and developed by Nest Labs to make supporting Thread connectivity on Unix-like operating systems more straightforward.
wpantund
is designed to marshall all access to the NCP, ensuring that it always remains in a consistent and well-defined state.
This is not an official Google product.
wpantund
provides:
wpanctl
) for managing and configuring the NCP.The architecture and design of wpantund
has been motivated by the following design goals (in no specific order):
wpantund
to gracefully co-exist on a single machineNote that Windows is not currently supported, but patches are welcome.
The following NCP plugins are provided:
src/ncp-spinel
: Supports NCPs that communicate using the Spinel NCP Protocol, used by NCPs running OpenThreadsrc/ncp-dummy
: A dummy NCP plug-in implementation meant to be the starting point for implementing new NCP plug-inswpantund
is open-source software released under the Apache License, Version 2.0. See the file LICENSE
for more information.
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
wpantund
is conceptually similar in purpose to the point-to-point daemon (pppd
, commonly used on Unix platforms to provide network connectivity via a dial-up modems) except that instead of communicating with a dial-up modem, wpantund
is communicating with an NCP.
wpantund
communicates with the NCP via an abstraction of a asynchronous stream socket, which could be any of the following:
Unlike a dial-up modem, NCPs often have a rich management interface for performing operations, such as forming a network, joining a network, scanning for nearby networks, etc. To perform these operations, wpantund
includes a command line utility called wpanctl
. Applications that need to directly configure the network interface can also communicate directly with wpantund
using its DBus API.
To expose a native IPv6 network interface to the host operating system, wpantund
uses the tun
driver on Linux. On Linux, the default name for the interface is wpan0
.
The behavior of wpantund
is determined by its configuration parameters, which may be specified in a configuration file (typically /etc/wpantund.conf
) or at the command line. A typical configuration file might look like that shown below. For a more thorough explanation of available configuration parameters, see the included example.
# Try to name the network interface `wpan0`. # If not possible, a different name will be used. Config:TUN:InterfaceName "wpan0" # The pathname of the socket used to communicate # with the NCP. Config:NCP:SocketPath "/dev/ttyUSB0" # The name of the driver plugin to use. The chosen # plugin must support the NCP you are trying to use. Config:NCP:DriverName "spinel" # Drop root privileges after opening all sockets Config:Daemon:PrivDropToUser "nobody" # Use a CCA Threshold of -70db NCP:CCAThreshold "-70"
When up and running, you can use wpanctl
to check the status of the interface and perform various management operations. For example, to check the general status of an interface:
$ sudo wpanctl status wpan0 => [ "NCP:State" => "offline" "Daemon:Enabled" => true "NCP:Version" => "OPENTHREAD/g1651a47; May 23 2016 17:23:24" "Daemon:Version" => "0.07.00 (May 23 2016 12:58:54)" "Config:NCP:DriverName" => "spinel" "NCP:HardwareAddress" => [F1D92A82C8D8FE43] ]
Here we see that the NCP is in the offline
state along with a few additional bits of information such as the version of the NCP and its hardware address. From here we can easily form a new network:
$ sudo wpanctl form "wpantund-testnet" Forming WPAN "wpantund-testnet" as node type router Successfully formed! $
Now if we check the status, we will see more information:
$ sudo wpanctl status wpan0 => [ "NCP:State" => "associated" "Daemon:Enabled" => true "NCP:Version" => "OPENTHREAD/g1651a47; May 23 2016 17:23:24" "Daemon:Version" => "0.07.00 (May 23 2016 12:58:54)" "Config:NCP:DriverName" => "spinel" "NCP:HardwareAddress" => [F1D92A82C8D8FE43] "NCP:Channel" => 23 "Network:NodeType" => "leader" "Network:Name" => "wpantund-testnet" "Network:XPANID" => 0x09717AEF221F66FB "Network:PANID" => 0xBFCD "IPv6:LinkLocalAddress" => "fe80::f3d9:2a82:c8d8:fe43" "IPv6:MeshLocalAddress" => "fd09:717a:ef22::9a5d:5d1e:5527:5fc8" "IPv6:MeshLocalPrefix" => "fd09:717a:ef22::/64" ] $ ifconfig wpan0 wpan0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280 inet6 fe80::f3d9:2a82:c8d8:fe43%wpan0 prefixlen 10 scopeid 0x15 inet6 fd09:717a:ef22::9a5d:5d1e:5527:5fc8 prefixlen 64
If compiled with libreadline
or libedit
, wpanctl
supports an convenient interactive console. All commands support online help: type help
to get a list of supported commands, or add -h
to a command to get help with that specific command.
For simulation example Codelab please see: https://openthread.io/guides#try_openthread
Submit bugs and feature requests to issue tracker. We use the following mailing lists for discussion and announcements:
wpantund
wpantund
User Discussion Groupwpantund
Developer Discussion GroupThe following people have significantly contributed to the design and development of wpantund
:
If you would like to contribute to this project, please read CONTRIBUTING.md first.