Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / i386 / crypto / aes.c

diff --git a/arch/i386/crypto/aes.c b/arch/i386/crypto/aes.c
index 1019430..a50397b 100644 (file)
--- 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_cpu(*(const u32 *)(x))
 #define bytes2word(b0, b1, b2, b3)  \
        (((u32)(b3) << 24) | ((u32)(b2) << 16) | ((u32)(b1) << 8) | (b0))
 
@@ -93,7 +94,6 @@ static u32 rcon_tab[RC_LENGTH];
 
 u32 ft_tab[4][256];
 u32 fl_tab[4][256];
-static u32 ls_tab[4][256];
 static u32 im_tab[4][256];
 u32 il_tab[4][256];
 u32 it_tab[4][256];
@@ -144,15 +144,6 @@ static void gen_tabs(void)
                fl_tab[2][i] = upr(w, 2);
                fl_tab[3][i] = upr(w, 3);
                
-               /*
-                * table for key schedule if fl_tab above is
-                * not of the required form
-                */
-               ls_tab[0][i] = w;
-               ls_tab[1][i] = upr(w, 1);
-               ls_tab[2][i] = upr(w, 2);
-               ls_tab[3][i] = upr(w, 3);
-               
                b = fi(inv_affine((u8)i));
                w = bytes2word(fe(b), f9(b), fd(b), fb(b));
 
@@ -393,13 +384,14 @@ 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 +402,8 @@ 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 +411,10 @@ 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 +428,10 @@ 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 +442,8 @@ 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 +451,10 @@ 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);
@@ -484,6 +476,8 @@ static inline void aes_decrypt(void *ctx, u8 *dst, const u8 *src)
 
 static struct crypto_alg aes_alg = {
        .cra_name               =       "aes",
+       .cra_driver_name        =       "aes-i586",
+       .cra_priority           =       200,
        .cra_flags              =       CRYPTO_ALG_TYPE_CIPHER,
        .cra_blocksize          =       AES_BLOCK_SIZE,
        .cra_ctxsize            =       sizeof(struct aes_ctx),