netdev - Re: [PATCH v8 11/12] samples/landlock: Add network demo

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Message-ID: <3e799f21-85f9-1b1d-c65e-3f9c7e4708aa@digikod.net>
Date:   Mon, 28 Nov 2022 21:26:32 +0100
From:   Mickaël Salaün <mic@...ikod.net>
To:     "Konstantin Meskhidze (A)" <konstantin.meskhidze@...wei.com>
Cc:     willemdebruijn.kernel@...il.com, gnoack3000@...il.com,
        linux-security-module@...r.kernel.org, netdev@...r.kernel.org,
        netfilter-devel@...r.kernel.org, artem.kuzin@...wei.com
Subject: Re: [PATCH v8 11/12] samples/landlock: Add network demo


On 28/11/2022 03:49, Konstantin Meskhidze (A) wrote:
> 
> 
> 11/16/2022 5:25 PM, Mickaël Salaün пишет:
>>
>> On 21/10/2022 17:26, Konstantin Meskhidze wrote:
>>> This commit adds network demo. It's possible to allow a sandboxer to
>>> bind/connect to a list of particular ports restricting network
>>> actions to the rest of ports.
>>>
>>> Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@...wei.com>
>>> ---

[...]

>>> +		access_net_tcp &= ~LANDLOCK_ACCESS_NET_BIND_TCP;
>>> +	}
>>> +	/* Removes connect access attribute if not supported by a user. */
>>> +	env_port_name = getenv(ENV_TCP_CONNECT_NAME);
>>> +	if (!env_port_name) {
>>> +		access_net_tcp &= ~LANDLOCK_ACCESS_NET_CONNECT_TCP;
>>> +	}
>>> +	ruleset_attr.handled_access_net &= access_net_tcp;
>>
>> There is no need for access_net_tcp.
> 
>     Do you mean to delete this var?

Yes