crypto: api - Add crypto_attr_alg2 helper

[safe/jmp/linux-2.6] / crypto / aead.c

diff --git a/crypto/aead.c b/crypto/aead.c
index f5b1add..d9aa733 100644 (file)
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -115,6 +115,8 @@ static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg)
        struct aead_alg *aead = &alg->cra_aead;
 
        seq_printf(m, "type         : aead\n");
+       seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
+                                            "yes" : "no");
        seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
        seq_printf(m, "ivsize       : %u\n", aead->ivsize);
        seq_printf(m, "maxauthsize  : %u\n", aead->maxauthsize);
@@ -169,6 +171,8 @@ static void crypto_nivaead_show(struct seq_file *m, struct crypto_alg *alg)
        struct aead_alg *aead = &alg->cra_aead;
 
        seq_printf(m, "type         : nivaead\n");
+       seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
+                                            "yes" : "no");
        seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
        seq_printf(m, "ivsize       : %u\n", aead->ivsize);
        seq_printf(m, "maxauthsize  : %u\n", aead->maxauthsize);
@@ -418,6 +422,22 @@ static struct crypto_alg *crypto_lookup_aead(const char *name, u32 type,
        if (!alg->cra_aead.ivsize)
                return alg;
 
+       crypto_mod_put(alg);
+       alg = crypto_alg_mod_lookup(name, type | CRYPTO_ALG_TESTED,
+                                   mask & ~CRYPTO_ALG_TESTED);
+       if (IS_ERR(alg))
+               return alg;
+
+       if (alg->cra_type == &crypto_aead_type) {
+               if ((alg->cra_flags ^ type ^ ~mask) & CRYPTO_ALG_TESTED) {
+                       crypto_mod_put(alg);
+                       alg = ERR_PTR(-ENOENT);
+               }
+               return alg;
+       }
+
+       BUG_ON(!alg->cra_aead.ivsize);
+
        return ERR_PTR(crypto_nivaead_default(alg, type, mask));
 }