James Carlson wrote:
> ...
>
> This means that nwamd must now determine (from a door call) whether
> the caller has the right to change network parameters (such as setting
> up interfaces, tearing them down, selecting wireless access points,
> and so on).
>   

 You can use the following calls to do that -
    door_ucred(&cred);
    ucred_getprivset(cred, pset);
    priv_ismember(pset, PRIV_SYS_NET_CONFIG);

 nscd code is a good example.
 
-Krishna

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