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-rw-r--r--security/seclvl.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/security/seclvl.c b/security/seclvl.c
index c26dd7d..8f62919 100644
--- a/security/seclvl.c
+++ b/security/seclvl.c
@@ -16,6 +16,7 @@
* (at your option) any later version.
*/
+#include <linux/err.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
@@ -197,26 +198,27 @@ static unsigned char hashedPassword[SHA1_DIGEST_SIZE];
static int
plaintext_to_sha1(unsigned char *hash, const char *plaintext, unsigned int len)
{
- struct crypto_tfm *tfm;
+ struct hash_desc desc;
struct scatterlist sg;
+ int err;
+
if (len > PAGE_SIZE) {
seclvl_printk(0, KERN_ERR, "Plaintext password too large (%d "
"characters). Largest possible is %lu "
"bytes.\n", len, PAGE_SIZE);
return -EINVAL;
}
- tfm = crypto_alloc_tfm("sha1", CRYPTO_TFM_REQ_MAY_SLEEP);
- if (tfm == NULL) {
+ desc.tfm = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(desc.tfm)) {
seclvl_printk(0, KERN_ERR,
"Failed to load transform for SHA1\n");
return -EINVAL;
}
sg_init_one(&sg, (u8 *)plaintext, len);
- crypto_digest_init(tfm);
- crypto_digest_update(tfm, &sg, 1);
- crypto_digest_final(tfm, hash);
- crypto_free_tfm(tfm);
- return 0;
+ desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+ err = crypto_hash_digest(&desc, &sg, len, hash);
+ crypto_free_hash(desc.tfm);
+ return err;
}
/**
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