Re: [PATCH net-next v4 4/6] docs: tls: document TLS1.3 key updates

[Jakub Kicinski <kuba@kernel.org>]

On Thu, 14 Nov 2024 16:50:51 +0100 Sabrina Dubroca wrote:
> +To prevent attempting to decrypt incoming records using the wrong key,
> +decryption will be paused when a KeyUpdate message is received by the
> +kernel, until the new key has been provided using the TLS_RX socket
> +option. Any read occurring after the KeyUpdate has been read and
> +before the new key is provided will fail with EKEYEXPIRED. Poll()'ing
> +the socket will also sleep until the new key is provided. There is no
> +pausing on the transmit side.

Thanks for the doc update, very useful. I'm not a socket expert so dunno
if suppressing POLLIN is the right thing to do. But a nit on the
phrasing - I'd say "poll() will not report any events from the socket
until.." ? Could be just me but sleep is a second order effect.