From: Stefano Garzarella <sgarzare@redhat.com>
To: Daurnimator <quae@daurnimator.com>
Cc: Jens Axboe <axboe@kernel.dk>,
Kernel Hardening <kernel-hardening@lists.openwall.com>,
Christian Brauner <christian.brauner@ubuntu.com>,
io-uring <io-uring@vger.kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Stefan Hajnoczi <stefanha@redhat.com>,
Jann Horn <jannh@google.com>, Jeff Moyer <jmoyer@redhat.com>,
Aleksa Sarai <asarai@suse.de>, Sargun Dhillon <sargun@sargun.me>,
linux-kernel@vger.kernel.org, Kees Cook <keescook@chromium.org>
Subject: Re: [PATCH v6 2/3] io_uring: add IOURING_REGISTER_RESTRICTIONS opcode
Date: Thu, 7 Jan 2021 09:39:32 +0100 [thread overview]
Message-ID: <20210107083932.ho6vo5g5hmdohwqt@steredhat> (raw)
In-Reply-To: <CAEnbY+fS8FXVeouOxN3uohTvo7fBi5r7TQCGBZUmG3MGJhBrYg@mail.gmail.com>
On Mon, Jan 04, 2021 at 01:26:41AM +1100, Daurnimator wrote:
>On Fri, 28 Aug 2020 at 00:59, Stefano Garzarella <sgarzare@redhat.com> wrote:
>> + __u8 register_op; /* IORING_RESTRICTION_REGISTER_OP */
>
>Can you confirm that this intentionally limited the future range of
>IORING_REGISTER opcodes to 0-255?
>
It was based on io_uring_probe, so we used u8 for opcodes, but we have
room to extend it in the future.
So, for now, this allow to register restrictions up to 255
IORING_REGISTER opcode.
next prev parent reply other threads:[~2021-01-07 8:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 14:58 [PATCH v6 0/3] io_uring: add restrictions to support untrusted applications and guests Stefano Garzarella
2020-08-27 14:58 ` [PATCH v6 1/3] io_uring: use an enumeration for io_uring_register(2) opcodes Stefano Garzarella
2020-08-27 14:58 ` [PATCH v6 2/3] io_uring: add IOURING_REGISTER_RESTRICTIONS opcode Stefano Garzarella
2021-01-03 14:26 ` Daurnimator
2021-01-03 14:26 ` Daurnimator
2021-01-07 8:39 ` Stefano Garzarella [this message]
2020-08-27 14:58 ` [PATCH v6 3/3] io_uring: allow disabling rings during the creation Stefano Garzarella
2020-09-08 13:44 ` Stefano Garzarella
2020-09-08 13:57 ` Jens Axboe
2020-09-08 14:10 ` Stefano Garzarella
2020-09-08 14:11 ` Jens Axboe
2020-08-28 3:01 ` [PATCH v6 0/3] io_uring: add restrictions to support untrusted applications and guests Jens Axboe
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