From: Bastien Nocera <hadess@hadess.net>
To: Eric Biggers <ebiggers@kernel.org>,
linux-crypto@vger.kernel.org,
Herbert Xu <herbert@gondor.apana.org.au>,
Marcel Holtmann <marcel@holtmann.org>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: linux-doc@vger.kernel.org, linux-api@vger.kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-bluetooth@vger.kernel.org, ell@lists.linux.dev
Subject: Re: [PATCH] crypto: af_alg - Document the deprecation of AF_ALG
Date: Tue, 23 Jun 2026 14:44:28 +0200 [thread overview]
Message-ID: <7d08a6df54279e9915f5df6bd4e5e5dde52b4fe1.camel@hadess.net> (raw)
In-Reply-To: <20260430011544.31823-1-ebiggers@kernel.org>
Hey,
Replying to this older patch.
On Wed, 2026-04-29 at 18:15 -0700, Eric Biggers wrote:
<snip>
> This isn't intended to change anything overnight. After all, most Linux
> distros won't be able to disable the kconfig options quite yet, mainly
> because of iwd. But this should create a bit more impetus for these
> userspace programs to be fixed, and the documentation update should also
> help prevent more users from appearing.
There are 2 other users that I know of: bluez, and the ell library
(used by iwd and bluez).
From what I could tell, bluetoothd uses AF_ALG for cryptography:
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/src/shared/crypto.c
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/tools/mesh-gatt/crypto.c
It uses "ecb(aes)" and "cmac(aes)" as algorithms.
Finally, it also uses them both again:
https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/mesh/crypto.c
through ell:
https://git.kernel.org/pub/scm/libs/ell/ell.git/tree/ell/cipher.c
Because that's a question that also came up, bluetoothd also uses the
CAP_NET_ADMIN capability.
I'll let Luiz and Marcel take it over from here.
Cheers
next prev parent reply other threads:[~2026-06-23 12:44 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-30 1:15 [PATCH] crypto: af_alg - Document the deprecation of AF_ALG Eric Biggers
2026-04-30 2:05 ` Herbert Xu
2026-04-30 2:10 ` Eric Biggers
2026-05-04 14:39 ` Jon Kohler
2026-05-04 17:39 ` Eric Biggers
2026-05-04 18:12 ` Jeff Barnes
2026-05-04 18:24 ` Eric Biggers
2026-05-04 18:27 ` Simo Sorce
2026-05-04 17:41 ` Jeff Barnes
2026-05-05 9:31 ` Herbert Xu
2026-05-05 23:17 ` Andy Lutomirski
2026-05-06 0:17 ` Eric Biggers
2026-05-06 14:42 ` Jeff Barnes
2026-05-10 15:54 ` Kamran Khan
2026-05-10 16:32 ` Eric Biggers
2026-05-10 18:06 ` Andy Lutomirski
2026-05-11 21:03 ` Ignat Korchagin
2026-05-11 21:38 ` Eric Biggers
2026-05-12 21:18 ` Ignat Korchagin
2026-05-13 14:29 ` Jeff Barnes
2026-06-23 12:44 ` Bastien Nocera [this message]
2026-06-23 16:49 ` Eric Biggers
2026-06-23 18:56 ` Linus Torvalds
2026-06-23 19:19 ` Eric Biggers
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