[Bug 222632] Enable Capsicum for connect(2)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222632

Ed Maste <emaste at freebsd.org> changed:

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                 CC|                            |emaste at freebsd.org

--- Comment #11 from Ed Maste <emaste at freebsd.org> ---
(In reply to Shawn Webb from comment #10)
> However, long-term, we should figure out how to be able to call connect(2) in capmode.

As a kernel interface that provides access to global namespaces connect(2)
cannot be called in capability mode. I looked at the capsicum(4) man page again
now, and it certainly seems we need a more thorough explanation in there. This
statement alludes to connect(2) not being available:

> capability mode
>   A process mode, entered by invoking cap_enter(2), in which access
>   to global OS namespaces (such as the file system and PID names‐
>   paces) is restricted

but it's certainly not a sufficient guide for refactoring existing applications
for applying Capsicum.

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