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net/tls: handle MSG_EOR for tls_device TX flow

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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>
This commit is contained in:
Hannes Reinecke 2023-07-26 21:15:52 +02:00 committed by Jakub Kicinski
parent e22e358bbe
commit c004b0e00c
1 changed files with 5 additions and 1 deletions
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6
net/tls/tls_device.c
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@ -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;