[PATCH v2] nvme-auth: Don't propose NVME_AUTH_DHGROUP_NULL with SC_C

[Hannes Reinecke]

On 3/9/26 05:27, alistair23 at gmail.com wrote:
> From: Alistair Francis <alistair.francis at wdc.com>
> 
> Section 8.3.4.5.2 of the NVMe 2.1 base spec states that
> 
> """
> The 00h identifier shall not be proposed in an AUTH_Negotiate message
> that requests secure channel concatenation (i.e., with the SC_C field
> set to a non-zero value).
> """
> 
> We need to ensure that we don't set the NVME_AUTH_DHGROUP_NULL idlist if
> SC_C is set.
> 
> Signed-off-by: Kamaljit Singh <kamaljit.singh at opensource.wdc.com>
> Signed-off-by: Alistair Francis <alistair.francis at wdc.com>
> ---
> v2:
>   - Use a macro for Diffie-Hellman Group Identifier List Offset
>   - Use a pointer for data->auth_protocol[0].dhchap.idlist
> 
>   drivers/nvme/host/auth.c | 23 +++++++++++++----------
>   include/linux/nvme.h     |  2 ++
>   2 files changed, 15 insertions(+), 10 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare at suse.de                                +49 911 74053 688
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