Module lan 

The LAN virtual radio: a soft ULCP device in this process whose PHY is the LAN bearer’s multicast group.

The device is the production session on a file-backed platform, so it has an identity and saved configuration of its own that persist from one invocation to the next. The tool reaches it over an in-memory byte pipe carrying the same HDLC-Lite framing a wire does, and everything above that—attach, the mesh session, every command—is unchanged.

What the device transmits is sent to the group, where every radio with its bearer enabled hears it; what any participant sends to the group is received unmeasured, since nothing here measured it.

Constants

LOCK_PATIENCE 🔒

How long an open waits for a previous virtual radio in this process to let go of its state.

READ_CHUNK 🔒

How much of the pipe to take in one read. ULCP frames are small; this only bounds a burst.

Functions

device_dir 🔒

Where the virtual radio keeps its identity and saved configuration.

open

Start a virtual radio and return the host’s end of the link to it. A group stands in for the radio’s own until it exits, as an unsaved write of PROP_LAN_BEARER_GROUP would.

relay 🔒

Carry the pipe to the device and back until the host lets go, which stops the device.