From: Stephan Mueller <smueller@chronox.de>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>,
Daniel Borkmann <dborkman@redhat.com>,
quentin.gouchet@gmail.com, LKML <linux-kernel@vger.kernel.org>,
linux-crypto@vger.kernel.org, ABI/API <linux-api@vger.kernel.org>
Subject: Re: crypto: user - Allow get request with empty driver name
Date: Thu, 20 Nov 2014 14:10 +0100 [thread overview]
Message-ID: <2283056.kKnMJs7Bfg@tachyon.chronox.de> (raw)
In-Reply-To: <1706209.Hbu17X87TM@tachyon.chronox.de>
Am Donnerstag, 20. November 2014, 14:02:21 schrieb Stephan Mueller:
Hi Stephan,
> Am Donnerstag, 20. November 2014, 12:46:50 schrieb Herbert Xu:
>
> Hi Herbert,
>
> > On Thu, Nov 20, 2014 at 05:23:23AM +0100, Stephan Mueller wrote:
> > > Here is the code:
> > >
> > > static int crypto_report(struct sk_buff *in_skb, struct nlmsghdr
> > > *in_nlh,
> > >
> > > struct nlattr **attrs)
> > >
> > > {
> > > ...
> > >
> > > if (!p->cru_driver_name[0])
> > >
> > > return -EINVAL;
> >
> > OK let's fix this.
> >
> > crypto: user - Allow get request with empty driver name
> >
> > Currently all get requests with an empty driver name fail with
> > EINVAL. Since most users actually want to supply an empty driver
> > name this patch removes this check.
> >
> > Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
>
> Acked-by: Stephan Mueller <smueller@chronox.de>
Although I acked the patch, it just occurred that your change modifies the
user space interface such that you now cannot use a driver name any more.
>
> > diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
> > index e2a34fe..0bb30ac 100644
> > --- a/crypto/crypto_user.c
> > +++ b/crypto/crypto_user.c
> > @@ -201,10 +201,7 @@ static int crypto_report(struct sk_buff *in_skb,
> > struct nlmsghdr *in_nlh, if (!null_terminated(p->cru_name) ||
> > !null_terminated(p->cru_driver_name)) return -EINVAL;
> >
> > - if (!p->cru_driver_name[0])
> > - return -EINVAL;
> > -
> > - alg = crypto_alg_match(p, 1);
> > + alg = crypto_alg_match(p, 0);
What about the following
if (p->cru_driver_name[0]
alg = crypto_alg_match(p, 1);
else
alg = crypto_alg_match(p, 0);
> >
> > if (!alg)
> >
> > return -ENOENT;
> >
> > Cheers,
--
Ciao
Stephan
next prev parent reply other threads:[~2014-11-20 13:10 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-16 2:23 [PATCH v2 00/10] crypto: AF_ALG: add AEAD and RNG support Stephan Mueller
2014-11-16 2:23 ` [PATCH v2 01/10] crypto: AF_ALG: add user space interface for AEAD Stephan Mueller
2014-11-18 14:06 ` Herbert Xu
2014-11-19 0:34 ` Stephan Mueller
2014-11-19 4:20 ` Stephan Mueller
2014-11-19 4:27 ` Herbert Xu
2014-11-19 6:30 ` Stephan Mueller
2014-11-19 6:45 ` Herbert Xu
2014-11-16 2:24 ` [PATCH v2 02/10] crypto: AF_ALG: user space interface for cipher info Stephan Mueller
2014-11-18 14:08 ` Herbert Xu
2014-11-19 1:02 ` Stephan Mueller
2014-11-19 1:05 ` Herbert Xu
2014-11-20 4:03 ` Stephan Mueller
2014-11-20 4:07 ` Herbert Xu
2014-11-20 4:14 ` Stephan Mueller
2014-11-20 4:18 ` Herbert Xu
2014-11-20 4:23 ` Stephan Mueller
2014-11-20 4:46 ` crypto: user - Allow get request with empty driver name Herbert Xu
2014-11-20 7:11 ` Steffen Klassert
2014-11-20 7:45 ` Herbert Xu
2014-11-20 8:04 ` Steffen Klassert
2014-11-20 13:07 ` Stephan Mueller
2014-11-20 13:02 ` Stephan Mueller
2014-11-20 13:10 ` Stephan Mueller [this message]
2014-11-20 13:40 ` Herbert Xu
2014-11-20 16:08 ` Stephan Mueller
2014-11-21 2:31 ` Herbert Xu
2014-11-21 2:42 ` Stephan Mueller
2014-11-21 4:40 ` Stephan Mueller
2014-11-20 6:32 ` [PATCH v2 02/10] crypto: AF_ALG: user space interface for cipher info Steffen Klassert
2014-11-20 7:05 ` Steffen Klassert
2014-11-16 2:25 ` [PATCH v2 03/10] crypto: AF_ALG: extend data structuers for AEAD Stephan Mueller
2014-11-16 2:25 ` [PATCH v2 04/10] crypto: AF_ALG: crypto API calls to inline functions Stephan Mueller
2014-11-16 2:26 ` [PATCH v2 05/10] crypto: AF_ALG: add AEAD support Stephan Mueller
2014-11-16 2:26 ` [PATCH v2 06/10] crypto: AF_ALG: make setkey optional Stephan Mueller
2014-11-18 14:10 ` Herbert Xu
2014-11-19 2:36 ` Stephan Mueller
2014-11-16 2:27 ` [PATCH v2 07/10] crypto: AF_ALG: add random number generator support Stephan Mueller
2014-11-16 2:28 ` [PATCH v2 08/10] crypto: AF_ALG: enable RNG interface compilation Stephan Mueller
2014-11-16 2:28 ` [PATCH v2 09/10] crypto: AF_ALG: user space interface for hash info Stephan Mueller
2014-11-16 2:29 ` [PATCH v2 10/10] crypto: AF_ALG: document the user space interface Stephan Mueller
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