xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

crypto: skcipher - Add default key size helper

Browse Source 
While converting ecryptfs over to skcipher I found that it needs
to pick a default key size if one isn't given.  Rather than having
it poke into the guts of the algorithm to get max_keysize, let's
provide a helper that is meant to give a sane default (just in
case we ever get an algorithm that has no maximum key size).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2016-01-21 17:10:56 +08:00
parent 7768fb2ee9
commit 973fb3fb50
2 changed files with 10 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
include/crypto/skcipher.h
View File

@@ -60,8 +60,7 @@ struct crypto_skcipher {
unsigned int ivsize;
unsigned int reqsize;
bool has_setkey;
unsigned int keysize;
struct crypto_tfm base;
};
@@ -309,7 +308,13 @@ static inline int crypto_skcipher_setkey(struct crypto_skcipher *tfm,
static inline bool crypto_skcipher_has_setkey(struct crypto_skcipher *tfm)
{
return tfm->has_setkey;
return tfm->keysize;
}
static inline unsigned int crypto_skcipher_default_keysize(
struct crypto_skcipher *tfm)
{
return tfm->keysize;
}
/**