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authorHerbert Xu <herbert@gondor.apana.org.au>2007-12-07 07:18:17 -0500
committerHerbert Xu <herbert@gondor.apana.org.au>2008-01-10 16:16:40 -0500
commit68b6c7d6919be7c732fc6229c55e35d0166e9258 (patch)
tree137eabe7eaf127c2f1460490733dee415aa7b339 /crypto/algapi.c
parent551a09a7a954f720067f207657bbbd26a3fe156a (diff)
[CRYPTO] api: Add crypto_attr_alg_name
This patch adds a new helper crypto_attr_alg_name which is basically the first half of crypto_attr_alg. That is, it returns an algorithm name parameter as a string without looking it up. The caller can then look it up immediately or defer it until later. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/algapi.c')
-rw-r--r--crypto/algapi.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c
index 08eca6da1d53..e65cb50cf4af 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -472,7 +472,7 @@ int crypto_check_attr_type(struct rtattr **tb, u32 type)
472} 472}
473EXPORT_SYMBOL_GPL(crypto_check_attr_type); 473EXPORT_SYMBOL_GPL(crypto_check_attr_type);
474 474
475struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask) 475const char *crypto_attr_alg_name(struct rtattr *rta)
476{ 476{
477 struct crypto_attr_alg *alga; 477 struct crypto_attr_alg *alga;
478 478
@@ -486,7 +486,21 @@ struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask)
486 alga = RTA_DATA(rta); 486 alga = RTA_DATA(rta);
487 alga->name[CRYPTO_MAX_ALG_NAME - 1] = 0; 487 alga->name[CRYPTO_MAX_ALG_NAME - 1] = 0;
488 488
489 return crypto_alg_mod_lookup(alga->name, type, mask); 489 return alga->name;
490}
491EXPORT_SYMBOL_GPL(crypto_attr_alg_name);
492
493struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask)
494{
495 const char *name;
496 int err;
497
498 name = crypto_attr_alg_name(rta);
499 err = PTR_ERR(name);
500 if (IS_ERR(name))
501 return ERR_PTR(err);
502
503 return crypto_alg_mod_lookup(name, type, mask);
490} 504}
491EXPORT_SYMBOL_GPL(crypto_attr_alg); 505EXPORT_SYMBOL_GPL(crypto_attr_alg);
492 506