Re: [PATCH] net: introduce ip_local_unbindable_ports sysctl

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From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
To: "Maciej Żenczykowski" <zenczykowski@gmail.com>
Cc: "David S . Miller" <davem@davemloft.net>,
	Linux NetDev <netdev@vger.kernel.org>,
	Sean Tranchetti <stranche@codeaurora.org>,
	Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>,
	Eric Dumazet <edumazet@google.com>,
	Linux SCTP <linux-sctp@vger.kernel.org>
Subject: Re: [PATCH] net: introduce ip_local_unbindable_ports sysctl
Date: Wed, 04 Dec 2019 18:27:03 +0000	[thread overview]
Message-ID: <20191204182703.GA5057@localhost.localdomain> (raw)
In-Reply-To: <CAHo-OowLw93a8P=RR=2jXQS92d118L3bNmBrUfPSBP4CDq_Ctg@mail.gmail.com>

On Fri, Nov 29, 2019 at 09:00:19PM +0100, Maciej Å»enczykowski 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

WARNING: multiple messages have this Message-ID (diff)

From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
To: "Maciej Żenczykowski" <zenczykowski@gmail.com>
Cc: "David S . Miller" <davem@davemloft.net>,
	Linux NetDev <netdev@vger.kernel.org>,
	Sean Tranchetti <stranche@codeaurora.org>,
	Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>,
	Eric Dumazet <edumazet@google.com>,
	Linux SCTP <linux-sctp@vger.kernel.org>
Subject: Re: [PATCH] net: introduce ip_local_unbindable_ports sysctl
Date: Wed, 4 Dec 2019 15:27:03 -0300	[thread overview]
Message-ID: <20191204182703.GA5057@localhost.localdomain> (raw)
In-Reply-To: <CAHo-OowLw93a8P=RR=2jXQS92d118L3bNmBrUfPSBP4CDq_Ctg@mail.gmail.com>

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

next prev parent reply	other threads:[~2019-12-04 18:27 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-27  0:13 [PATCH] net: introduce ip_local_unbindable_ports sysctl Maciej Żenczykowski
2019-11-27  0:13 ` Maciej Żenczykowski
2019-11-27  2:10 ` subashab
2019-11-27 13:14 ` Marcelo Ricardo Leitner
2019-11-27 13:14   ` Marcelo Ricardo Leitner
2019-11-27 20:50   ` Maciej Żenczykowski
2019-11-27 20:50     ` Maciej Żenczykowski
2019-11-27 22:33     ` David Miller
2019-11-27 22:33       ` David Miller
2019-11-27 23:00     ` Marcelo Ricardo Leitner
2019-11-27 23:00       ` Marcelo Ricardo Leitner
2019-11-29 20:00       ` Maciej Żenczykowski
2019-11-29 20:00         ` Maciej Żenczykowski
2019-12-04 18:27         ` Marcelo Ricardo Leitner [this message]
2019-12-04 18:27           ` Marcelo Ricardo Leitner
2019-12-09 22:43           ` Maciej Żenczykowski
2019-12-09 22:43             ` Maciej Żenczykowski
2019-12-09 22:45             ` [PATCH v2] " Maciej Żenczykowski
2019-12-09 22:45               ` Maciej Żenczykowski
2019-12-09 23:42               ` Jakub Kicinski
2019-12-09 23:42                 ` Jakub Kicinski
2019-12-10  0:02                 ` Maciej Żenczykowski
2019-12-10  0:02                   ` Maciej Żenczykowski
2019-12-10  0:18                   ` Jakub Kicinski
2019-12-10  0:18                     ` Jakub Kicinski
2019-12-10  7:00                     ` subashab
2019-12-10 11:46                     ` Maciej Żenczykowski
2019-12-10 11:46                       ` Maciej Żenczykowski
2019-12-10 17:31                       ` Jakub Kicinski
2019-12-10 17:31                         ` Jakub Kicinski
2019-12-13  0:16                         ` Lorenzo Colitti
2019-12-13  0:16                           ` Lorenzo Colitti
2019-12-13  0:47                           ` Jakub Kicinski
2019-12-13  0:47                             ` Jakub Kicinski
2019-12-13  0:57                             ` Lorenzo Colitti
2019-12-13  0:57                               ` Lorenzo Colitti
2019-12-13  1:53                               ` subashab
2019-12-13  1:53                                 ` subashab
2019-12-13  2:04                                 ` Jakub Kicinski
2019-12-13  2:04                                   ` Jakub Kicinski
2019-12-10 19:28                       ` David Miller
2019-12-10 19:28                         ` David Miller
     [not found]                     ` <0101016eee9bf9b5-f5615781-f0a6-41c4-8e9d-ed694eccf07c-000000@us-west-2.amazonses.com>
2019-12-10 17:12                       ` Jakub Kicinski
2019-12-10 17:12                         ` Jakub Kicinski
2019-12-10 18:12                         ` subashab
2019-12-13  0:25       ` [PATCH] " Lorenzo Colitti
2019-12-13  0:25         ` Lorenzo Colitti
2019-12-13 11:49 ` Neil Horman
2019-12-13 11:49   ` Neil Horman
2019-12-19  9:35   ` Lorenzo Colitti
2019-12-19  9:35     ` Lorenzo Colitti
2019-12-19 13:17     ` Neil Horman
2019-12-19 13:17       ` Neil Horman
2019-12-19 14:02       ` Lorenzo Colitti
2019-12-19 14:02         ` Lorenzo Colitti
2019-12-19 16:57         ` Neil Horman
2019-12-19 16:57           ` Neil Horman
2019-12-19 17:52         ` David Miller
2019-12-19 17:52           ` David Miller

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