Messages in this thread Patch in this message | | | From | Stephan Mueller <> | Subject | [PATCH v2 06/10] crypto: AF_ALG: make setkey optional | Date | Sun, 16 Nov 2014 03:26:58 +0100 |
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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
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