From: Christoph Hellwig <hch@infradead.org>
To: Stefan Metzmacher <metze@samba.org>
Cc: linux-cifs@vger.kernel.org, Steve French <smfrench@gmail.com>,
Tom Talpey <tom@talpey.com>, Long Li <longli@microsoft.com>,
Namjae Jeon <linkinjeon@kernel.org>,
David Howells <dhowells@redhat.com>,
stable@vger.kernel.org
Subject: Re: [PATCH 0/3] avoid plaintext rdma offset if encryption is required
Date: Wed, 1 Feb 2023 05:39:43 -0800 [thread overview]
Message-ID: <Y9prn4niNung9Zer@infradead.org> (raw)
In-Reply-To: <cover.1675252643.git.metze@samba.org>
On Wed, Feb 01, 2023 at 01:04:40PM +0100, Stefan Metzmacher wrote:
> I think it is a security problem to send confidential data in plaintext
> over the wire, so we should avoid doing that even if rdma is in use.
Yep.
> Modern Windows servers support signed and encrypted rdma offload,
> but we don't support this yet...
There is a series out on the list for encryption offload to mlx5
hardware, whch is one way to handle this. If not you need to bounce
buffer.
next prev parent reply other threads:[~2023-02-01 13:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-01 12:04 [PATCH 0/3] avoid plaintext rdma offset if encryption is required Stefan Metzmacher
2023-02-01 12:04 ` [PATCH 1/3] cifs: introduce cifs_io_parms in smb2_async_writev() Stefan Metzmacher
2023-02-01 12:04 ` [PATCH 2/3] cifs: split out smb3_use_rdma_offload() helper Stefan Metzmacher
2023-02-01 12:04 ` [PATCH 3/3] cifs: don't try to use rdma offload on encrypted connections Stefan Metzmacher
2023-02-01 13:39 ` Christoph Hellwig [this message]
2023-02-01 13:52 ` [PATCH 0/3] avoid plaintext rdma offset if encryption is required Stefan Metzmacher
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