linux-kernel - Re: [PATCH 1/2] crypto: add infra to skip disallowed algs in fips mode

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Date:	Fri, 08 May 2009 00:51:00 -0400
From:	Jarod Wilson <jarod@...hat.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
CC:	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
	Neil Horman <nhorman@...driver.com>
Subject: Re: [PATCH 1/2] crypto: add infra to skip disallowed algs in fips
 mode

On 05/07/2009 10:12 PM, Herbert Xu wrote:
> On Thu, May 07, 2009 at 03:27:59PM -0400, Jarod Wilson wrote:
>> Because all fips-allowed algorithms must be self-tested before they
>> can be used, they will all have entries in testmgr.c's alg_test_descs[].
>> If we add and set an additional flag for the allowed algorithms, we can
>> key off of it to prevent use of any algs that aren't allowed.
>>
>> Signed-off-by: Jarod Wilson <jarod@...hat.com>
>>
>> ---
>>  crypto/testmgr.c |    9 +++++++++
>>  1 files changed, 9 insertions(+), 0 deletions(-)
>>
>> diff --git a/crypto/testmgr.c b/crypto/testmgr.c
>> index f4cc178..232f043 100644
>> --- a/crypto/testmgr.c
>> +++ b/crypto/testmgr.c
>> @@ -94,6 +94,7 @@ struct alg_test_desc {
>>  	const char *alg;
>>  	int (*test)(const struct alg_test_desc *desc, const char *driver,
>>  		    u32 type, u32 mask);
>> +	int fips_allowed;	/* set if alg is allowed in fips mode */
>>  
>>  	union {
>>  		struct aead_test_suite aead;
> 
> Please merge this chunk with the second patch into one and have
> it as the first patch.  We want this to be bisectable.

D'oh. I actually was attempting to make it bisectable, but now I see
that w/fips mode enabled, you wouldn't be able to use any algs with
them split this way if you landed between 'em. I'll repost shortly.

-- 
Jarod Wilson
jarod@...hat.com

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