#if !defined(I386_ONLY) && !defined(OPENSSL_NO_INLINE_ASM)
# if defined(__i386__) || defined(__i386) || defined(_M_IX86)
# define COMPILE_HW_PADLOCK
+static ENGINE *ENGINE_padlock (void);
# endif
#endif
-static ENGINE *ENGINE_padlock (void);
-
void ENGINE_load_padlock (void)
{
/* On non-x86 CPUs it just returns. */
}
/* Generate all functions with appropriate opcodes */
-PADLOCK_XCRYPT_ASM(padlock_xcrypt_ecb, ".byte 0xf3,0x0f,0xa7,0xc8"); /* rep xcryptecb */
-PADLOCK_XCRYPT_ASM(padlock_xcrypt_cbc, ".byte 0xf3,0x0f,0xa7,0xd0"); /* rep xcryptcbc */
-PADLOCK_XCRYPT_ASM(padlock_xcrypt_cfb, ".byte 0xf3,0x0f,0xa7,0xe0"); /* rep xcryptcfb */
-PADLOCK_XCRYPT_ASM(padlock_xcrypt_ofb, ".byte 0xf3,0x0f,0xa7,0xe8"); /* rep xcryptofb */
+PADLOCK_XCRYPT_ASM(padlock_xcrypt_ecb, ".byte 0xf3,0x0f,0xa7,0xc8") /* rep xcryptecb */
+PADLOCK_XCRYPT_ASM(padlock_xcrypt_cbc, ".byte 0xf3,0x0f,0xa7,0xd0") /* rep xcryptcbc */
+PADLOCK_XCRYPT_ASM(padlock_xcrypt_cfb, ".byte 0xf3,0x0f,0xa7,0xe0") /* rep xcryptcfb */
+PADLOCK_XCRYPT_ASM(padlock_xcrypt_ofb, ".byte 0xf3,0x0f,0xa7,0xe8") /* rep xcryptofb */
/* The RNG call itself */
static inline unsigned int
return eax_out;
}
+/* Why not inline 'rep movsd'? I failed to find information on what
+ * value in Direction Flag one can expect and consequently have to
+ * apply "better-safe-than-sorry" approach and assume "undefined."
+ * I could explicitly clear it and restore the original value upon
+ * return from padlock_aes_cipher, but it's presumably too much
+ * trouble for too little gain...
+ *
+ * In case you wonder 'rep xcrypt*' instructions above are *not*
+ * affected by the Direction Flag and pointers advance toward
+ * larger addresses unconditionally.
+ */
+static inline unsigned char *
+padlock_memcpy(void *dst,const void *src,size_t n)
+{
+ long *d=dst;
+ const long *s=src;
+
+ n /= sizeof(*d);
+ do { *d++ = *s++; } while (--n);
+
+ return dst;
+}
+
#elif defined(_MSC_VER)
/*
* Unlike GCC these are real functions. In order to minimize impact
popfd
}
}
+
+/* MS actually specifies status of Direction Flag and compiler even
+ * manages to compile following as 'rep movsd' all by itself...
+ */
+#define padlock_memcpy(o,i,n) ((unsigned char *)memcpy((o),(i),(n)&~3U))
#endif
/* ===== AES encryption/decryption ===== */
NID_aes_192_ecb,
NID_aes_192_cbc,
-// NID_aes_192_cfb, /* FIXME: AES192/256 CFB/OFB don't work. */
-// NID_aes_192_ofb,
+#if 0
+ NID_aes_192_cfb, /* FIXME: AES192/256 CFB/OFB don't work. */
+ NID_aes_192_ofb,
+#endif
NID_aes_256_ecb,
NID_aes_256_cbc,
-// NID_aes_256_cfb,
-// NID_aes_256_ofb,
+#if 0
+ NID_aes_256_cfb,
+ NID_aes_256_ofb,
+#endif
};
static int padlock_cipher_nids_num = (sizeof(padlock_cipher_nids)/
sizeof(padlock_cipher_nids[0]));
static int padlock_aes_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, unsigned int nbytes);
-#define NEAREST_ALIGNED(ptr) ( (char *)(ptr) + \
+#define NEAREST_ALIGNED(ptr) ( (unsigned char *)(ptr) + \
( (0x10 - ((size_t)(ptr) & 0x0F)) & 0x0F ) )
#define ALIGNED_CIPHER_DATA(ctx) ((struct padlock_cipher_data *)\
NEAREST_ALIGNED(ctx->cipher_data))
{
struct padlock_cipher_data *cdata;
const void *inp;
- char *out;
+ unsigned char *out;
void *iv;
int inp_misaligned, out_misaligned, realign_in_loop;
size_t chunk, allocated=0;
case EVP_CIPH_ECB_MODE:
do {
if (inp_misaligned)
- inp = memcpy(out, in_arg, chunk&~3);
+ inp = padlock_memcpy(out, in_arg, chunk);
else
inp = in_arg;
in_arg += chunk;
padlock_xcrypt_ecb(chunk/AES_BLOCK_SIZE, cdata, out, inp);
if (out_misaligned)
- out_arg = (char *)memcpy(out_arg, out, chunk&~3) + chunk;
+ out_arg = padlock_memcpy(out_arg, out, chunk) + chunk;
else
out = out_arg+=chunk;
chunk = PADLOCK_CHUNK;
cbc_shortcut: /* optimize for small input */
if (inp_misaligned)
- inp = memcpy(out, in_arg, chunk&~3);
+ inp = padlock_memcpy(out, in_arg, chunk);
else
inp = in_arg;
in_arg += chunk;
iv = padlock_xcrypt_cbc(chunk/AES_BLOCK_SIZE, cdata, out, inp);
if (out_misaligned)
- out_arg = (char *)memcpy(out_arg, out, chunk&~3) + chunk;
+ out_arg = padlock_memcpy(out_arg, out, chunk) + chunk;
else
out = out_arg+=chunk;
chunk = PADLOCK_CHUNK;
cfb_shortcut: /* optimize for small input */
if (inp_misaligned)
- inp = memcpy(out, in_arg, chunk&~3);
+ inp = padlock_memcpy(out, in_arg, chunk);
else
inp = in_arg;
in_arg += chunk;
iv = padlock_xcrypt_cfb(chunk/AES_BLOCK_SIZE, cdata, out, inp);
if (out_misaligned)
- out_arg = (char *)memcpy(out_arg, out, chunk&~3) + chunk;
+ out_arg = padlock_memcpy(out_arg, out, chunk) + chunk;
else
out = out_arg+=chunk;
memcpy(cdata->iv, ctx->iv, AES_BLOCK_SIZE);
do {
if (inp_misaligned)
- inp = memcpy(out, in_arg, chunk&~3);
+ inp = padlock_memcpy(out, in_arg, chunk);
else
inp = in_arg;
in_arg += chunk;
padlock_xcrypt_ofb(chunk/AES_BLOCK_SIZE, cdata, out, inp);
if (out_misaligned)
- out_arg = (char *)memcpy(out_arg, out, chunk&~3) + chunk;
+ out_arg = padlock_memcpy(out_arg, out, chunk) + chunk;
else
out = out_arg+=chunk;