From: Stephan Mueller <smueller@chronox.de>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: 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: [PATCH v2 06/10] crypto: AF_ALG: make setkey optional
Date: Sun, 16 Nov 2014 03:26:58 +0100 [thread overview]
Message-ID: <2196615.OgfUNzPKdf@tachyon.chronox.de> (raw)
In-Reply-To: <5365136.g8vbXlhRyC@tachyon.chronox.de>
The current AF_ALG implementation requires that a userspace interface
implementation must provide a callback for setkey. Such a call is not
appliable to random number generators.
To prepare AF_ALG for the addition of a random number generator user
space interface, this function callback invocation is made optional.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
---
crypto/af_alg.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 635140b..47a199c 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -177,6 +177,9 @@ static int alg_setkey(struct sock *sk, char __user *ukey,
u8 *key;
int err;
+ if (!type->setkey)
+ return -EOPNOTSUPP;
+
key = sock_kmalloc(sk, keylen, GFP_KERNEL);
if (!key)
return -ENOMEM;
--
2.1.0
next prev parent reply other threads:[~2014-11-16 2:48 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
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 ` Stephan Mueller [this message]
2014-11-18 14:10 ` [PATCH v2 06/10] crypto: AF_ALG: make setkey optional 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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