X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=crypto%2Fcipher.c;h=9a1a7316eeacf6f71befe1b149283a4350db0c56;hb=28111eb2f5087c5aa5ec3697388f6c7d354b2ad8;hp=333aab2f027717fc96672ed74662d1c25d72b2ce;hpb=a727fea99bf4b2addcd64c596735148117a7b37f;p=pandora-kernel.git

diff --git a/crypto/cipher.c b/crypto/cipher.c
index 333aab2f0277..9a1a7316eeac 100644
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -16,20 +16,48 @@
 #include <linux/kernel.h>
 #include <linux/crypto.h>
 #include <linux/errno.h>
-#include <linux/scatterlist.h>
+#include <linux/slab.h>
 #include <linux/string.h>
 #include "internal.h"
 
+static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key,
+			    unsigned int keylen)
+{
+	struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher;
+	unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
+	int ret;
+	u8 *buffer, *alignbuffer;
+	unsigned long absize;
+
+	absize = keylen + alignmask;
+	buffer = kmalloc(absize, GFP_ATOMIC);
+	if (!buffer)
+		return -ENOMEM;
+
+	alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
+	memcpy(alignbuffer, key, keylen);
+	ret = cia->cia_setkey(tfm, alignbuffer, keylen);
+	memset(alignbuffer, 0, keylen);
+	kfree(buffer);
+	return ret;
+
+}
+
 static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
 {
 	struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher;
-	
+	unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
+
 	tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
 	if (keylen < cia->cia_min_keysize || keylen > cia->cia_max_keysize) {
 		tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
 		return -EINVAL;
-	} else
-		return cia->cia_setkey(tfm, key, keylen);
+	}
+
+	if ((unsigned long)key & alignmask)
+		return setkey_unaligned(tfm, key, keylen);
+
+	return cia->cia_setkey(tfm, key, keylen);
 }
 
 static void cipher_crypt_unaligned(void (*fn)(struct crypto_tfm *, u8 *,