Since linux commit a35ec8e38cdd1766f29924ca391a01de20163931 ("bridge:
Add MAC Authentication Bypass (MAB) support"), included since v6.2, it
is possible to enable MAC Authentication Bypass for bridge ports. In
this mode the locked port learns again, but the learned fdb entries are
locked, allowing user space to unlock hosts based seen MAC addresses.
This requires learning to be enabled on the port, and link-local
learning disabled for the bridge.
Add support to systemd-network for setting the new attribute for bridge
ports.
Since linux commit a21d9a670d81103db7f788de1a4a4a6e4b891a0b ("net:
bridge: Add support for bridge port in locked mode"), included since
v5.18, it is possible to set bridge ports to locked.
Locked ports do not learn automatically, and discard any traffic from
unknown source MACs. To allow traffic, the userspace authenticator is
expected to create fdb entries for authenticated hosts.
Add support to systemd-network for setting the new attribute for bridge
ports.
Those are all consumed by our parser, so they all support comments.
I was considering whether they should have a license header at all,
but in the end I decided to add it because those files are often created
by copying parts of real unit files. And if the real ones have a license,
then those might as well. It's easier to add it than to make an exception.