Commit c004b0e0 authored Jul 26, 2023 by Hannes Reinecke Committed by Jakub Kicinski Jul 27, 2023

net/tls: handle MSG_EOR for tls_device TX flow



tls_push_data() MSG_MORE, but bails out on MSG_EOR.
Seeing that MSG_EOR is basically the opposite of MSG_MORE
this patch adds handling MSG_EOR by treating it as the
absence of MSG_MORE.
Consequently we should return an error when both are set.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230726191556.41714-3-hare@suse.de


Signed-off-by: Jakub Kicinski <kuba@kernel.org>

parent e22e358b

net/tls/tls_device.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -441,9 +441,13 @@ static int tls_push_data(struct sock *sk,
		long timeo;

		if (flags &
		~(MSG_MORE \| MSG_DONTWAIT \| MSG_NOSIGNAL \| MSG_SPLICE_PAGES))
		~(MSG_MORE \| MSG_DONTWAIT \| MSG_NOSIGNAL \|
		MSG_SPLICE_PAGES \| MSG_EOR))
		return -EOPNOTSUPP;

		if ((flags & (MSG_MORE \| MSG_EOR)) == (MSG_MORE \| MSG_EOR))
		return -EINVAL;

		if (unlikely(sk->sk_err))
		return -sk->sk_err;