crda | Central Regulatory Domain Agent

crda is a C library. crda has no bugs, it has no vulnerabilities and it has low support. However crda has a Non-SPDX License. You can download it from GitHub.

The database is maintained on the wireless-regdb.git tree. This git tree maintains a binary regulatory database file which is produced using its own ASCII db.txt into binary form for size efficiency. The contents of the binary database are then signed using the private key. CRDA will use regulatory.bin if its signature checks out with the public key provided. This will prevent us from using corrupted data (in case of hard drive failure) in the running kernel. This separation between CRDA and the regulatory database also allows us to provide regulatory updates on distributions without having to require an update on CRDA. Note that upon updating the regulatory database it is advised the user reboots or all the wireless modules get unloaded and reloaded. Under certain circumstances it may be desirable to have the regulatory agent accept multiple keys, this can be achieved by stuffing all the keys desired into pubkeys. Right now we use John Linville’s and Seth Forshee’s public keys.