*/
+#include <asm/byteorder.h>
#include <linux/init.h>
#include <linux/crypto.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/string.h>
+#include <linux/types.h>
#define CAST6_BLOCK_SIZE 16
#define CAST6_MIN_KEY_SIZE 16
key[7] ^= F2(key[0], Tr[i % 4][7], Tm[i][7]);
}
-static int
-cast6_setkey(void *ctx, const u8 * in_key, unsigned key_len, u32 * flags)
+static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned key_len, u32 *flags)
{
int i;
u32 key[8];
- u8 p_key[32]; /* padded key */
- struct cast6_ctx *c = (struct cast6_ctx *) ctx;
+ __be32 p_key[8]; /* padded key */
+ struct cast6_ctx *c = crypto_tfm_ctx(tfm);
if (key_len < 16 || key_len > 32 || key_len % 4 != 0) {
*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
memset (p_key, 0, 32);
memcpy (p_key, in_key, key_len);
- key[0] = p_key[0] << 24 | p_key[1] << 16 | p_key[2] << 8 | p_key[3]; /* A */
- key[1] = p_key[4] << 24 | p_key[5] << 16 | p_key[6] << 8 | p_key[7]; /* B */
- key[2] = p_key[8] << 24 | p_key[9] << 16 | p_key[10] << 8 | p_key[11]; /* C */
- key[3] = p_key[12] << 24 | p_key[13] << 16 | p_key[14] << 8 | p_key[15]; /* D */
- key[4] = p_key[16] << 24 | p_key[17] << 16 | p_key[18] << 8 | p_key[19]; /* E */
- key[5] = p_key[20] << 24 | p_key[21] << 16 | p_key[22] << 8 | p_key[23]; /* F */
- key[6] = p_key[24] << 24 | p_key[25] << 16 | p_key[26] << 8 | p_key[27]; /* G */
- key[7] = p_key[28] << 24 | p_key[29] << 16 | p_key[30] << 8 | p_key[31]; /* H */
+ key[0] = be32_to_cpu(p_key[0]); /* A */
+ key[1] = be32_to_cpu(p_key[1]); /* B */
+ key[2] = be32_to_cpu(p_key[2]); /* C */
+ key[3] = be32_to_cpu(p_key[3]); /* D */
+ key[4] = be32_to_cpu(p_key[4]); /* E */
+ key[5] = be32_to_cpu(p_key[5]); /* F */
+ key[6] = be32_to_cpu(p_key[6]); /* G */
+ key[7] = be32_to_cpu(p_key[7]); /* H */
block[2] ^= F1(block[3], Kr[0], Km[0]);
}
-static void cast6_encrypt (void * ctx, u8 * outbuf, const u8 * inbuf) {
- struct cast6_ctx * c = (struct cast6_ctx *)ctx;
+static void cast6_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf)
+{
+ struct cast6_ctx *c = crypto_tfm_ctx(tfm);
+ const __be32 *src = (const __be32 *)inbuf;
+ __be32 *dst = (__be32 *)outbuf;
u32 block[4];
u32 * Km;
u8 * Kr;
- block[0] = inbuf[0] << 24 | inbuf[1] << 16 | inbuf[2] << 8 | inbuf[3];
- block[1] = inbuf[4] << 24 | inbuf[5] << 16 | inbuf[6] << 8 | inbuf[7];
- block[2] = inbuf[8] << 24 | inbuf[9] << 16 | inbuf[10] << 8 | inbuf[11];
- block[3] = inbuf[12] << 24 | inbuf[13] << 16 | inbuf[14] << 8 | inbuf[15];
+ block[0] = be32_to_cpu(src[0]);
+ block[1] = be32_to_cpu(src[1]);
+ block[2] = be32_to_cpu(src[2]);
+ block[3] = be32_to_cpu(src[3]);
Km = c->Km[0]; Kr = c->Kr[0]; Q (block, Kr, Km);
Km = c->Km[1]; Kr = c->Kr[1]; Q (block, Kr, Km);
Km = c->Km[9]; Kr = c->Kr[9]; QBAR (block, Kr, Km);
Km = c->Km[10]; Kr = c->Kr[10]; QBAR (block, Kr, Km);
Km = c->Km[11]; Kr = c->Kr[11]; QBAR (block, Kr, Km);
-
- outbuf[0] = (block[0] >> 24) & 0xff;
- outbuf[1] = (block[0] >> 16) & 0xff;
- outbuf[2] = (block[0] >> 8) & 0xff;
- outbuf[3] = block[0] & 0xff;
- outbuf[4] = (block[1] >> 24) & 0xff;
- outbuf[5] = (block[1] >> 16) & 0xff;
- outbuf[6] = (block[1] >> 8) & 0xff;
- outbuf[7] = block[1] & 0xff;
- outbuf[8] = (block[2] >> 24) & 0xff;
- outbuf[9] = (block[2] >> 16) & 0xff;
- outbuf[10] = (block[2] >> 8) & 0xff;
- outbuf[11] = block[2] & 0xff;
- outbuf[12] = (block[3] >> 24) & 0xff;
- outbuf[13] = (block[3] >> 16) & 0xff;
- outbuf[14] = (block[3] >> 8) & 0xff;
- outbuf[15] = block[3] & 0xff;
+
+ dst[0] = cpu_to_be32(block[0]);
+ dst[1] = cpu_to_be32(block[1]);
+ dst[2] = cpu_to_be32(block[2]);
+ dst[3] = cpu_to_be32(block[3]);
}
-static void cast6_decrypt (void * ctx, u8 * outbuf, const u8 * inbuf) {
- struct cast6_ctx * c = (struct cast6_ctx *)ctx;
+static void cast6_decrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) {
+ struct cast6_ctx * c = crypto_tfm_ctx(tfm);
+ const __be32 *src = (const __be32 *)inbuf;
+ __be32 *dst = (__be32 *)outbuf;
u32 block[4];
u32 * Km;
u8 * Kr;
- block[0] = inbuf[0] << 24 | inbuf[1] << 16 | inbuf[2] << 8 | inbuf[3];
- block[1] = inbuf[4] << 24 | inbuf[5] << 16 | inbuf[6] << 8 | inbuf[7];
- block[2] = inbuf[8] << 24 | inbuf[9] << 16 | inbuf[10] << 8 | inbuf[11];
- block[3] = inbuf[12] << 24 | inbuf[13] << 16 | inbuf[14] << 8 | inbuf[15];
+ block[0] = be32_to_cpu(src[0]);
+ block[1] = be32_to_cpu(src[1]);
+ block[2] = be32_to_cpu(src[2]);
+ block[3] = be32_to_cpu(src[3]);
Km = c->Km[11]; Kr = c->Kr[11]; Q (block, Kr, Km);
Km = c->Km[10]; Kr = c->Kr[10]; Q (block, Kr, Km);
Km = c->Km[1]; Kr = c->Kr[1]; QBAR (block, Kr, Km);
Km = c->Km[0]; Kr = c->Kr[0]; QBAR (block, Kr, Km);
- outbuf[0] = (block[0] >> 24) & 0xff;
- outbuf[1] = (block[0] >> 16) & 0xff;
- outbuf[2] = (block[0] >> 8) & 0xff;
- outbuf[3] = block[0] & 0xff;
- outbuf[4] = (block[1] >> 24) & 0xff;
- outbuf[5] = (block[1] >> 16) & 0xff;
- outbuf[6] = (block[1] >> 8) & 0xff;
- outbuf[7] = block[1] & 0xff;
- outbuf[8] = (block[2] >> 24) & 0xff;
- outbuf[9] = (block[2] >> 16) & 0xff;
- outbuf[10] = (block[2] >> 8) & 0xff;
- outbuf[11] = block[2] & 0xff;
- outbuf[12] = (block[3] >> 24) & 0xff;
- outbuf[13] = (block[3] >> 16) & 0xff;
- outbuf[14] = (block[3] >> 8) & 0xff;
- outbuf[15] = block[3] & 0xff;
+ dst[0] = cpu_to_be32(block[0]);
+ dst[1] = cpu_to_be32(block[1]);
+ dst[2] = cpu_to_be32(block[2]);
+ dst[3] = cpu_to_be32(block[3]);
}
static struct crypto_alg alg = {
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = CAST6_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct cast6_ctx),
+ .cra_alignmask = 3,
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(alg.cra_list),
.cra_u = {
git.openpandora.org / pandora-kernel.git / blobdiff