netdev - Re: [PATCH] net: introduce ip_local_unbindable

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Message-ID: <20191204182703.GA5057@localhost.localdomain>
Date:   Wed, 4 Dec 2019 15:27:03 -0300
From:   Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
To:     Maciej Żenczykowski <zenczykowski@...il.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Linux NetDev <netdev@...r.kernel.org>,
        Sean Tranchetti <stranche@...eaurora.org>,
        Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Linux SCTP <linux-sctp@...r.kernel.org>
Subject: Re: [PATCH] net: introduce ip_local_unbindable_ports sysctl

On Fri, Nov 29, 2019 at 09:00:19PM +0100, Maciej Żenczykowski wrote:
...
> I'm of the opinion that SELinux and other security policy modules
> should be reserved for things related to system wide security policy.
> Not for things that are more along the lines of 'functionality'.

Makes sense.

> 
> Also selinux has 'permissive' mode which causes the system to ignore
> all selinux access controls (in favour of just logging) and this is
> what is commonly used during development (because it's such a pain to
> work with).

Agree, this would be a big problem.
IOW, "you don't have permission to access to this" != "you just can't use this, no
matter what"

FWIW, I rest my case :-)

Thanks,
Marcelo