Re: [PATCHv2 25/59] keys/mktme: Preparse the MKTME key payload

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On Mon, Aug 05, 2019 at 07:58:19AM -0400, Ben Boeckel wrote:
> On Wed, Jul 31, 2019 at 18:07:39 +0300, Kirill A. Shutemov wrote:
> > From: Alison Schofield <alison.schofield@xxxxxxxxx>
> > +/* Make sure arguments are correct for the TYPE of key requested */
> > +static int mktme_check_options(u32 *payload, unsigned long token_mask,
> > +			       enum mktme_type type, enum mktme_alg alg)
> > +{
> > +	if (!token_mask)
> > +		return -EINVAL;
> > +
> > +	switch (type) {
> > +	case MKTME_TYPE_CPU:
> > +		if (test_bit(OPT_ALGORITHM, &token_mask))
> > +			*payload |= (1 << alg) << 8;
> > +		else
> > +			return -EINVAL;
> > +
> > +		*payload |= MKTME_KEYID_SET_KEY_RANDOM;
> > +		break;
> > +
> > +	case MKTME_TYPE_NO_ENCRYPT:
		if (test_bit(OPT_ALGORITHM, &token_mask))
			return -EINVAL;
> > +		*payload |= MKTME_KEYID_NO_ENCRYPT;
> > +		break;
> 
> The documentation states that for `type=no-encrypt`, algorithm must not
> be specified at all. Where is that checked?
> 
> --Ben
It's not currently checked, but should be. 
I'll add it as shown above.
Thanks for the review,
Alison




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