summaryrefslogtreecommitdiffstats
path: root/arch/i386/crypto/aes.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/i386/crypto/aes.c')
-rw-r--r--arch/i386/crypto/aes.c44
1 files changed, 23 insertions, 21 deletions
diff --git a/arch/i386/crypto/aes.c b/arch/i386/crypto/aes.c
index 88ee85c3b43b..1deb9ff564be 100644
--- a/arch/i386/crypto/aes.c
+++ b/arch/i386/crypto/aes.c
@@ -36,6 +36,8 @@
* Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
*
*/
+
+#include <asm/byteorder.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -59,7 +61,6 @@ struct aes_ctx {
};
#define WPOLY 0x011b
-#define u32_in(x) le32_to_cpup((const __le32 *)(x))
#define bytes2word(b0, b1, b2, b3) \
(((u32)(b3) << 24) | ((u32)(b2) << 16) | ((u32)(b1) << 8) | (b0))
@@ -393,13 +394,14 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
int i;
u32 ss[8];
struct aes_ctx *ctx = ctx_arg;
+ const __le32 *key = (const __le32 *)in_key;
/* encryption schedule */
- ctx->ekey[0] = ss[0] = u32_in(in_key);
- ctx->ekey[1] = ss[1] = u32_in(in_key + 4);
- ctx->ekey[2] = ss[2] = u32_in(in_key + 8);
- ctx->ekey[3] = ss[3] = u32_in(in_key + 12);
+ ctx->ekey[0] = ss[0] = le32_to_cpu(key[0]);
+ ctx->ekey[1] = ss[1] = le32_to_cpu(key[1]);
+ ctx->ekey[2] = ss[2] = le32_to_cpu(key[2]);
+ ctx->ekey[3] = ss[3] = le32_to_cpu(key[3]);
switch(key_len) {
case 16:
@@ -410,8 +412,8 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
break;
case 24:
- ctx->ekey[4] = ss[4] = u32_in(in_key + 16);
- ctx->ekey[5] = ss[5] = u32_in(in_key + 20);
+ ctx->ekey[4] = ss[4] = le32_to_cpu(key[4]);
+ ctx->ekey[5] = ss[5] = le32_to_cpu(key[5]);
for (i = 0; i < 7; i++)
ke6(ctx->ekey, i);
kel6(ctx->ekey, 7);
@@ -419,10 +421,10 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
break;
case 32:
- ctx->ekey[4] = ss[4] = u32_in(in_key + 16);
- ctx->ekey[5] = ss[5] = u32_in(in_key + 20);
- ctx->ekey[6] = ss[6] = u32_in(in_key + 24);
- ctx->ekey[7] = ss[7] = u32_in(in_key + 28);
+ ctx->ekey[4] = ss[4] = le32_to_cpu(key[4]);
+ ctx->ekey[5] = ss[5] = le32_to_cpu(key[5]);
+ ctx->ekey[6] = ss[6] = le32_to_cpu(key[6]);
+ ctx->ekey[7] = ss[7] = le32_to_cpu(key[7]);
for (i = 0; i < 6; i++)
ke8(ctx->ekey, i);
kel8(ctx->ekey, 6);
@@ -436,10 +438,10 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
/* decryption schedule */
- ctx->dkey[0] = ss[0] = u32_in(in_key);
- ctx->dkey[1] = ss[1] = u32_in(in_key + 4);
- ctx->dkey[2] = ss[2] = u32_in(in_key + 8);
- ctx->dkey[3] = ss[3] = u32_in(in_key + 12);
+ ctx->dkey[0] = ss[0] = le32_to_cpu(key[0]);
+ ctx->dkey[1] = ss[1] = le32_to_cpu(key[1]);
+ ctx->dkey[2] = ss[2] = le32_to_cpu(key[2]);
+ ctx->dkey[3] = ss[3] = le32_to_cpu(key[3]);
switch (key_len) {
case 16:
@@ -450,8 +452,8 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
break;
case 24:
- ctx->dkey[4] = ff(ss[4] = u32_in(in_key + 16));
- ctx->dkey[5] = ff(ss[5] = u32_in(in_key + 20));
+ ctx->dkey[4] = ff(ss[4] = le32_to_cpu(key[4]));
+ ctx->dkey[5] = ff(ss[5] = le32_to_cpu(key[5]));
kdf6(ctx->dkey, 0);
for (i = 1; i < 7; i++)
kd6(ctx->dkey, i);
@@ -459,10 +461,10 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
break;
case 32:
- ctx->dkey[4] = ff(ss[4] = u32_in(in_key + 16));
- ctx->dkey[5] = ff(ss[5] = u32_in(in_key + 20));
- ctx->dkey[6] = ff(ss[6] = u32_in(in_key + 24));
- ctx->dkey[7] = ff(ss[7] = u32_in(in_key + 28));
+ ctx->dkey[4] = ff(ss[4] = le32_to_cpu(key[4]));
+ ctx->dkey[5] = ff(ss[5] = le32_to_cpu(key[5]));
+ ctx->dkey[6] = ff(ss[6] = le32_to_cpu(key[6]));
+ ctx->dkey[7] = ff(ss[7] = le32_to_cpu(key[7]));
kdf8(ctx->dkey, 0);
for (i = 1; i < 6; i++)
kd8(ctx->dkey, i);