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authorSimon L. B. Nielsen <simon@FreeBSD.org>2008-08-23 10:51:00 +0000
committerSimon L. B. Nielsen <simon@FreeBSD.org>2008-08-23 10:51:00 +0000
commitc4a78426bef17a0a7c81195c2b2399e7441f14ad (patch)
tree596c39f00d5968b1519e8cd7f0546412b14c20f0 /crypto/openssl/crypto/engine/eng_padlock.c
parenta0ddfe4e7233d81e88a86217b7653708db2720fa (diff)
downloadsrc-c4a78426bef17a0a7c81195c2b2399e7441f14ad.tar.gz
src-c4a78426bef17a0a7c81195c2b2399e7441f14ad.zip
Flatten OpenSSL vendor tree.
Notes
Notes: svn path=/vendor-crypto/openssl/dist/; revision=182044
Diffstat (limited to 'crypto/openssl/crypto/engine/eng_padlock.c')
-rw-r--r--crypto/openssl/crypto/engine/eng_padlock.c1216
1 files changed, 0 insertions, 1216 deletions
diff --git a/crypto/openssl/crypto/engine/eng_padlock.c b/crypto/openssl/crypto/engine/eng_padlock.c
deleted file mode 100644
index e1d66eac58ad..000000000000
--- a/crypto/openssl/crypto/engine/eng_padlock.c
+++ /dev/null
@@ -1,1216 +0,0 @@
-/*
- * Support for VIA PadLock Advanced Cryptography Engine (ACE)
- * Written by Michal Ludvig <michal@logix.cz>
- * http://www.logix.cz/michal
- *
- * Big thanks to Andy Polyakov for a help with optimization,
- * assembler fixes, port to MS Windows and a lot of other
- * valuable work on this engine!
- */
-
-/* ====================================================================
- * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-
-#include <stdio.h>
-#include <string.h>
-
-#include <openssl/opensslconf.h>
-#include <openssl/crypto.h>
-#include <openssl/dso.h>
-#include <openssl/engine.h>
-#include <openssl/evp.h>
-#ifndef OPENSSL_NO_AES
-#include <openssl/aes.h>
-#endif
-#include <openssl/rand.h>
-#include <openssl/err.h>
-
-#ifndef OPENSSL_NO_HW
-#ifndef OPENSSL_NO_HW_PADLOCK
-
-/* Attempt to have a single source for both 0.9.7 and 0.9.8 :-) */
-#if (OPENSSL_VERSION_NUMBER >= 0x00908000L)
-# ifndef OPENSSL_NO_DYNAMIC_ENGINE
-# define DYNAMIC_ENGINE
-# endif
-#elif (OPENSSL_VERSION_NUMBER >= 0x00907000L)
-# ifdef ENGINE_DYNAMIC_SUPPORT
-# define DYNAMIC_ENGINE
-# endif
-#else
-# error "Only OpenSSL >= 0.9.7 is supported"
-#endif
-
-/* VIA PadLock AES is available *ONLY* on some x86 CPUs.
- Not only that it doesn't exist elsewhere, but it
- even can't be compiled on other platforms!
-
- In addition, because of the heavy use of inline assembler,
- compiler choice is limited to GCC and Microsoft C. */
-#undef COMPILE_HW_PADLOCK
-#if !defined(I386_ONLY) && !defined(OPENSSL_NO_INLINE_ASM)
-# if (defined(__GNUC__) && (defined(__i386__) || defined(__i386))) || \
- (defined(_MSC_VER) && defined(_M_IX86))
-# define COMPILE_HW_PADLOCK
-static ENGINE *ENGINE_padlock (void);
-# endif
-#endif
-
-void ENGINE_load_padlock (void)
-{
-/* On non-x86 CPUs it just returns. */
-#ifdef COMPILE_HW_PADLOCK
- ENGINE *toadd = ENGINE_padlock ();
- if (!toadd) return;
- ENGINE_add (toadd);
- ENGINE_free (toadd);
- ERR_clear_error ();
-#endif
-}
-
-#ifdef COMPILE_HW_PADLOCK
-/* We do these includes here to avoid header problems on platforms that
- do not have the VIA padlock anyway... */
-#ifdef _MSC_VER
-# include <malloc.h>
-# define alloca _alloca
-#else
-# include <stdlib.h>
-#endif
-
-/* Function for ENGINE detection and control */
-static int padlock_available(void);
-static int padlock_init(ENGINE *e);
-
-/* RNG Stuff */
-static RAND_METHOD padlock_rand;
-
-/* Cipher Stuff */
-#ifndef OPENSSL_NO_AES
-static int padlock_ciphers(ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid);
-#endif
-
-/* Engine names */
-static const char *padlock_id = "padlock";
-static char padlock_name[100];
-
-/* Available features */
-static int padlock_use_ace = 0; /* Advanced Cryptography Engine */
-static int padlock_use_rng = 0; /* Random Number Generator */
-#ifndef OPENSSL_NO_AES
-static int padlock_aes_align_required = 1;
-#endif
-
-/* ===== Engine "management" functions ===== */
-
-/* Prepare the ENGINE structure for registration */
-static int
-padlock_bind_helper(ENGINE *e)
-{
- /* Check available features */
- padlock_available();
-
-#if 1 /* disable RNG for now, see commentary in vicinity of RNG code */
- padlock_use_rng=0;
-#endif
-
- /* Generate a nice engine name with available features */
- BIO_snprintf(padlock_name, sizeof(padlock_name),
- "VIA PadLock (%s, %s)",
- padlock_use_rng ? "RNG" : "no-RNG",
- padlock_use_ace ? "ACE" : "no-ACE");
-
- /* Register everything or return with an error */
- if (!ENGINE_set_id(e, padlock_id) ||
- !ENGINE_set_name(e, padlock_name) ||
-
- !ENGINE_set_init_function(e, padlock_init) ||
-#ifndef OPENSSL_NO_AES
- (padlock_use_ace && !ENGINE_set_ciphers (e, padlock_ciphers)) ||
-#endif
- (padlock_use_rng && !ENGINE_set_RAND (e, &padlock_rand))) {
- return 0;
- }
-
- /* Everything looks good */
- return 1;
-}
-
-/* Constructor */
-static ENGINE *
-ENGINE_padlock(void)
-{
- ENGINE *eng = ENGINE_new();
-
- if (!eng) {
- return NULL;
- }
-
- if (!padlock_bind_helper(eng)) {
- ENGINE_free(eng);
- return NULL;
- }
-
- return eng;
-}
-
-/* Check availability of the engine */
-static int
-padlock_init(ENGINE *e)
-{
- return (padlock_use_rng || padlock_use_ace);
-}
-
-/* This stuff is needed if this ENGINE is being compiled into a self-contained
- * shared-library.
- */
-#ifdef DYNAMIC_ENGINE
-static int
-padlock_bind_fn(ENGINE *e, const char *id)
-{
- if (id && (strcmp(id, padlock_id) != 0)) {
- return 0;
- }
-
- if (!padlock_bind_helper(e)) {
- return 0;
- }
-
- return 1;
-}
-
-IMPLEMENT_DYNAMIC_CHECK_FN ();
-IMPLEMENT_DYNAMIC_BIND_FN (padlock_bind_fn);
-#endif /* DYNAMIC_ENGINE */
-
-/* ===== Here comes the "real" engine ===== */
-
-#ifndef OPENSSL_NO_AES
-/* Some AES-related constants */
-#define AES_BLOCK_SIZE 16
-#define AES_KEY_SIZE_128 16
-#define AES_KEY_SIZE_192 24
-#define AES_KEY_SIZE_256 32
-
-/* Here we store the status information relevant to the
- current context. */
-/* BIG FAT WARNING:
- * Inline assembler in PADLOCK_XCRYPT_ASM()
- * depends on the order of items in this structure.
- * Don't blindly modify, reorder, etc!
- */
-struct padlock_cipher_data
-{
- unsigned char iv[AES_BLOCK_SIZE]; /* Initialization vector */
- union { unsigned int pad[4];
- struct {
- int rounds:4;
- int dgst:1; /* n/a in C3 */
- int align:1; /* n/a in C3 */
- int ciphr:1; /* n/a in C3 */
- unsigned int keygen:1;
- int interm:1;
- unsigned int encdec:1;
- int ksize:2;
- } b;
- } cword; /* Control word */
- AES_KEY ks; /* Encryption key */
-};
-
-/*
- * Essentially this variable belongs in thread local storage.
- * Having this variable global on the other hand can only cause
- * few bogus key reloads [if any at all on single-CPU system],
- * so we accept the penatly...
- */
-static volatile struct padlock_cipher_data *padlock_saved_context;
-#endif
-
-/*
- * =======================================================
- * Inline assembler section(s).
- * =======================================================
- * Order of arguments is chosen to facilitate Windows port
- * using __fastcall calling convention. If you wish to add
- * more routines, keep in mind that first __fastcall
- * argument is passed in %ecx and second - in %edx.
- * =======================================================
- */
-#if defined(__GNUC__) && __GNUC__>=2
-/*
- * As for excessive "push %ebx"/"pop %ebx" found all over.
- * When generating position-independent code GCC won't let
- * us use "b" in assembler templates nor even respect "ebx"
- * in "clobber description." Therefore the trouble...
- */
-
-/* Helper function - check if a CPUID instruction
- is available on this CPU */
-static int
-padlock_insn_cpuid_available(void)
-{
- int result = -1;
-
- /* We're checking if the bit #21 of EFLAGS
- can be toggled. If yes = CPUID is available. */
- asm volatile (
- "pushf\n"
- "popl %%eax\n"
- "xorl $0x200000, %%eax\n"
- "movl %%eax, %%ecx\n"
- "andl $0x200000, %%ecx\n"
- "pushl %%eax\n"
- "popf\n"
- "pushf\n"
- "popl %%eax\n"
- "andl $0x200000, %%eax\n"
- "xorl %%eax, %%ecx\n"
- "movl %%ecx, %0\n"
- : "=r" (result) : : "eax", "ecx");
-
- return (result == 0);
-}
-
-/* Load supported features of the CPU to see if
- the PadLock is available. */
-static int
-padlock_available(void)
-{
- char vendor_string[16];
- unsigned int eax, edx;
-
- /* First check if the CPUID instruction is available at all... */
- if (! padlock_insn_cpuid_available())
- return 0;
-
- /* Are we running on the Centaur (VIA) CPU? */
- eax = 0x00000000;
- vendor_string[12] = 0;
- asm volatile (
- "pushl %%ebx\n"
- "cpuid\n"
- "movl %%ebx,(%%edi)\n"
- "movl %%edx,4(%%edi)\n"
- "movl %%ecx,8(%%edi)\n"
- "popl %%ebx"
- : "+a"(eax) : "D"(vendor_string) : "ecx", "edx");
- if (strcmp(vendor_string, "CentaurHauls") != 0)
- return 0;
-
- /* Check for Centaur Extended Feature Flags presence */
- eax = 0xC0000000;
- asm volatile ("pushl %%ebx; cpuid; popl %%ebx"
- : "+a"(eax) : : "ecx", "edx");
- if (eax < 0xC0000001)
- return 0;
-
- /* Read the Centaur Extended Feature Flags */
- eax = 0xC0000001;
- asm volatile ("pushl %%ebx; cpuid; popl %%ebx"
- : "+a"(eax), "=d"(edx) : : "ecx");
-
- /* Fill up some flags */
- padlock_use_ace = ((edx & (0x3<<6)) == (0x3<<6));
- padlock_use_rng = ((edx & (0x3<<2)) == (0x3<<2));
-
- return padlock_use_ace + padlock_use_rng;
-}
-
-#ifndef OPENSSL_NO_AES
-/* Our own htonl()/ntohl() */
-static inline void
-padlock_bswapl(AES_KEY *ks)
-{
- size_t i = sizeof(ks->rd_key)/sizeof(ks->rd_key[0]);
- unsigned int *key = ks->rd_key;
-
- while (i--) {
- asm volatile ("bswapl %0" : "+r"(*key));
- key++;
- }
-}
-#endif
-
-/* Force key reload from memory to the CPU microcode.
- Loading EFLAGS from the stack clears EFLAGS[30]
- which does the trick. */
-static inline void
-padlock_reload_key(void)
-{
- asm volatile ("pushfl; popfl");
-}
-
-#ifndef OPENSSL_NO_AES
-/*
- * This is heuristic key context tracing. At first one
- * believes that one should use atomic swap instructions,
- * but it's not actually necessary. Point is that if
- * padlock_saved_context was changed by another thread
- * after we've read it and before we compare it with cdata,
- * our key *shall* be reloaded upon thread context switch
- * and we are therefore set in either case...
- */
-static inline void
-padlock_verify_context(struct padlock_cipher_data *cdata)
-{
- asm volatile (
- "pushfl\n"
-" btl $30,(%%esp)\n"
-" jnc 1f\n"
-" cmpl %2,%1\n"
-" je 1f\n"
-" popfl\n"
-" subl $4,%%esp\n"
-"1: addl $4,%%esp\n"
-" movl %2,%0"
- :"+m"(padlock_saved_context)
- : "r"(padlock_saved_context), "r"(cdata) : "cc");
-}
-
-/* Template for padlock_xcrypt_* modes */
-/* BIG FAT WARNING:
- * The offsets used with 'leal' instructions
- * describe items of the 'padlock_cipher_data'
- * structure.
- */
-#define PADLOCK_XCRYPT_ASM(name,rep_xcrypt) \
-static inline void *name(size_t cnt, \
- struct padlock_cipher_data *cdata, \
- void *out, const void *inp) \
-{ void *iv; \
- asm volatile ( "pushl %%ebx\n" \
- " leal 16(%0),%%edx\n" \
- " leal 32(%0),%%ebx\n" \
- rep_xcrypt "\n" \
- " popl %%ebx" \
- : "=a"(iv), "=c"(cnt), "=D"(out), "=S"(inp) \
- : "0"(cdata), "1"(cnt), "2"(out), "3"(inp), "m"(*cdata) \
- : "edx", "cc", "memory"); \
- return iv; \
-}
-
-/* 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 */
-#endif
-
-/* The RNG call itself */
-static inline unsigned int
-padlock_xstore(void *addr, unsigned int edx_in)
-{
- unsigned int eax_out;
-
- asm volatile (".byte 0x0f,0xa7,0xc0" /* xstore */
- : "=a"(eax_out),"=m"(*(unsigned *)addr)
- : "D"(addr), "d" (edx_in)
- );
-
- 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
- * on performance we adhere to __fastcall calling convention in
- * order to get two first arguments passed through %ecx and %edx.
- * Which kind of suits very well, as instructions in question use
- * both %ecx and %edx as input:-)
- */
-#define REP_XCRYPT(code) \
- _asm _emit 0xf3 \
- _asm _emit 0x0f _asm _emit 0xa7 \
- _asm _emit code
-
-/* BIG FAT WARNING:
- * The offsets used with 'lea' instructions
- * describe items of the 'padlock_cipher_data'
- * structure.
- */
-#define PADLOCK_XCRYPT_ASM(name,code) \
-static void * __fastcall \
- name (size_t cnt, void *cdata, \
- void *outp, const void *inp) \
-{ _asm mov eax,edx \
- _asm lea edx,[eax+16] \
- _asm lea ebx,[eax+32] \
- _asm mov edi,outp \
- _asm mov esi,inp \
- REP_XCRYPT(code) \
-}
-
-PADLOCK_XCRYPT_ASM(padlock_xcrypt_ecb,0xc8)
-PADLOCK_XCRYPT_ASM(padlock_xcrypt_cbc,0xd0)
-PADLOCK_XCRYPT_ASM(padlock_xcrypt_cfb,0xe0)
-PADLOCK_XCRYPT_ASM(padlock_xcrypt_ofb,0xe8)
-
-static int __fastcall
-padlock_xstore(void *outp,unsigned int code)
-{ _asm mov edi,ecx
- _asm _emit 0x0f _asm _emit 0xa7 _asm _emit 0xc0
-}
-
-static void __fastcall
-padlock_reload_key(void)
-{ _asm pushfd _asm popfd }
-
-static void __fastcall
-padlock_verify_context(void *cdata)
-{ _asm {
- pushfd
- bt DWORD PTR[esp],30
- jnc skip
- cmp ecx,padlock_saved_context
- je skip
- popfd
- sub esp,4
- skip: add esp,4
- mov padlock_saved_context,ecx
- }
-}
-
-static int
-padlock_available(void)
-{ _asm {
- pushfd
- pop eax
- mov ecx,eax
- xor eax,1<<21
- push eax
- popfd
- pushfd
- pop eax
- xor eax,ecx
- bt eax,21
- jnc noluck
- mov eax,0
- cpuid
- xor eax,eax
- cmp ebx,'tneC'
- jne noluck
- cmp edx,'Hrua'
- jne noluck
- cmp ecx,'slua'
- jne noluck
- mov eax,0xC0000000
- cpuid
- mov edx,eax
- xor eax,eax
- cmp edx,0xC0000001
- jb noluck
- mov eax,0xC0000001
- cpuid
- xor eax,eax
- bt edx,6
- jnc skip_a
- bt edx,7
- jnc skip_a
- mov padlock_use_ace,1
- inc eax
- skip_a: bt edx,2
- jnc skip_r
- bt edx,3
- jnc skip_r
- mov padlock_use_rng,1
- inc eax
- skip_r:
- noluck:
- }
-}
-
-static void __fastcall
-padlock_bswapl(void *key)
-{ _asm {
- pushfd
- cld
- mov esi,ecx
- mov edi,ecx
- mov ecx,60
- up: lodsd
- bswap eax
- stosd
- loop up
- 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 ===== */
-#ifndef OPENSSL_NO_AES
-
-#if defined(NID_aes_128_cfb128) && ! defined (NID_aes_128_cfb)
-#define NID_aes_128_cfb NID_aes_128_cfb128
-#endif
-
-#if defined(NID_aes_128_ofb128) && ! defined (NID_aes_128_ofb)
-#define NID_aes_128_ofb NID_aes_128_ofb128
-#endif
-
-#if defined(NID_aes_192_cfb128) && ! defined (NID_aes_192_cfb)
-#define NID_aes_192_cfb NID_aes_192_cfb128
-#endif
-
-#if defined(NID_aes_192_ofb128) && ! defined (NID_aes_192_ofb)
-#define NID_aes_192_ofb NID_aes_192_ofb128
-#endif
-
-#if defined(NID_aes_256_cfb128) && ! defined (NID_aes_256_cfb)
-#define NID_aes_256_cfb NID_aes_256_cfb128
-#endif
-
-#if defined(NID_aes_256_ofb128) && ! defined (NID_aes_256_ofb)
-#define NID_aes_256_ofb NID_aes_256_ofb128
-#endif
-
-/* List of supported ciphers. */
-static int padlock_cipher_nids[] = {
- NID_aes_128_ecb,
- NID_aes_128_cbc,
- NID_aes_128_cfb,
- NID_aes_128_ofb,
-
- NID_aes_192_ecb,
- NID_aes_192_cbc,
- NID_aes_192_cfb,
- NID_aes_192_ofb,
-
- NID_aes_256_ecb,
- NID_aes_256_cbc,
- NID_aes_256_cfb,
- NID_aes_256_ofb,
-};
-static int padlock_cipher_nids_num = (sizeof(padlock_cipher_nids)/
- sizeof(padlock_cipher_nids[0]));
-
-/* Function prototypes ... */
-static int padlock_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc);
-static int padlock_aes_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t nbytes);
-
-#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))
-
-#define EVP_CIPHER_block_size_ECB AES_BLOCK_SIZE
-#define EVP_CIPHER_block_size_CBC AES_BLOCK_SIZE
-#define EVP_CIPHER_block_size_OFB 1
-#define EVP_CIPHER_block_size_CFB 1
-
-/* Declaring so many ciphers by hand would be a pain.
- Instead introduce a bit of preprocessor magic :-) */
-#define DECLARE_AES_EVP(ksize,lmode,umode) \
-static const EVP_CIPHER padlock_aes_##ksize##_##lmode = { \
- NID_aes_##ksize##_##lmode, \
- EVP_CIPHER_block_size_##umode, \
- AES_KEY_SIZE_##ksize, \
- AES_BLOCK_SIZE, \
- 0 | EVP_CIPH_##umode##_MODE, \
- padlock_aes_init_key, \
- padlock_aes_cipher, \
- NULL, \
- sizeof(struct padlock_cipher_data) + 16, \
- EVP_CIPHER_set_asn1_iv, \
- EVP_CIPHER_get_asn1_iv, \
- NULL, \
- NULL \
-}
-
-DECLARE_AES_EVP(128,ecb,ECB);
-DECLARE_AES_EVP(128,cbc,CBC);
-DECLARE_AES_EVP(128,cfb,CFB);
-DECLARE_AES_EVP(128,ofb,OFB);
-
-DECLARE_AES_EVP(192,ecb,ECB);
-DECLARE_AES_EVP(192,cbc,CBC);
-DECLARE_AES_EVP(192,cfb,CFB);
-DECLARE_AES_EVP(192,ofb,OFB);
-
-DECLARE_AES_EVP(256,ecb,ECB);
-DECLARE_AES_EVP(256,cbc,CBC);
-DECLARE_AES_EVP(256,cfb,CFB);
-DECLARE_AES_EVP(256,ofb,OFB);
-
-static int
-padlock_ciphers (ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid)
-{
- /* No specific cipher => return a list of supported nids ... */
- if (!cipher) {
- *nids = padlock_cipher_nids;
- return padlock_cipher_nids_num;
- }
-
- /* ... or the requested "cipher" otherwise */
- switch (nid) {
- case NID_aes_128_ecb:
- *cipher = &padlock_aes_128_ecb;
- break;
- case NID_aes_128_cbc:
- *cipher = &padlock_aes_128_cbc;
- break;
- case NID_aes_128_cfb:
- *cipher = &padlock_aes_128_cfb;
- break;
- case NID_aes_128_ofb:
- *cipher = &padlock_aes_128_ofb;
- break;
-
- case NID_aes_192_ecb:
- *cipher = &padlock_aes_192_ecb;
- break;
- case NID_aes_192_cbc:
- *cipher = &padlock_aes_192_cbc;
- break;
- case NID_aes_192_cfb:
- *cipher = &padlock_aes_192_cfb;
- break;
- case NID_aes_192_ofb:
- *cipher = &padlock_aes_192_ofb;
- break;
-
- case NID_aes_256_ecb:
- *cipher = &padlock_aes_256_ecb;
- break;
- case NID_aes_256_cbc:
- *cipher = &padlock_aes_256_cbc;
- break;
- case NID_aes_256_cfb:
- *cipher = &padlock_aes_256_cfb;
- break;
- case NID_aes_256_ofb:
- *cipher = &padlock_aes_256_ofb;
- break;
-
- default:
- /* Sorry, we don't support this NID */
- *cipher = NULL;
- return 0;
- }
-
- return 1;
-}
-
-/* Prepare the encryption key for PadLock usage */
-static int
-padlock_aes_init_key (EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc)
-{
- struct padlock_cipher_data *cdata;
- int key_len = EVP_CIPHER_CTX_key_length(ctx) * 8;
-
- if (key==NULL) return 0; /* ERROR */
-
- cdata = ALIGNED_CIPHER_DATA(ctx);
- memset(cdata, 0, sizeof(struct padlock_cipher_data));
-
- /* Prepare Control word. */
- if (EVP_CIPHER_CTX_mode(ctx) == EVP_CIPH_OFB_MODE)
- cdata->cword.b.encdec = 0;
- else
- cdata->cword.b.encdec = (ctx->encrypt == 0);
- cdata->cword.b.rounds = 10 + (key_len - 128) / 32;
- cdata->cword.b.ksize = (key_len - 128) / 64;
-
- switch(key_len) {
- case 128:
- /* PadLock can generate an extended key for
- AES128 in hardware */
- memcpy(cdata->ks.rd_key, key, AES_KEY_SIZE_128);
- cdata->cword.b.keygen = 0;
- break;
-
- case 192:
- case 256:
- /* Generate an extended AES key in software.
- Needed for AES192/AES256 */
- /* Well, the above applies to Stepping 8 CPUs
- and is listed as hardware errata. They most
- likely will fix it at some point and then
- a check for stepping would be due here. */
- if (EVP_CIPHER_CTX_mode(ctx) == EVP_CIPH_CFB_MODE ||
- EVP_CIPHER_CTX_mode(ctx) == EVP_CIPH_OFB_MODE ||
- enc)
- AES_set_encrypt_key(key, key_len, &cdata->ks);
- else
- AES_set_decrypt_key(key, key_len, &cdata->ks);
-#ifndef AES_ASM
- /* OpenSSL C functions use byte-swapped extended key. */
- padlock_bswapl(&cdata->ks);
-#endif
- cdata->cword.b.keygen = 1;
- break;
-
- default:
- /* ERROR */
- return 0;
- }
-
- /*
- * This is done to cover for cases when user reuses the
- * context for new key. The catch is that if we don't do
- * this, padlock_eas_cipher might proceed with old key...
- */
- padlock_reload_key ();
-
- return 1;
-}
-
-/*
- * Simplified version of padlock_aes_cipher() used when
- * 1) both input and output buffers are at aligned addresses.
- * or when
- * 2) running on a newer CPU that doesn't require aligned buffers.
- */
-static int
-padlock_aes_cipher_omnivorous(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
- const unsigned char *in_arg, size_t nbytes)
-{
- struct padlock_cipher_data *cdata;
- void *iv;
-
- cdata = ALIGNED_CIPHER_DATA(ctx);
- padlock_verify_context(cdata);
-
- switch (EVP_CIPHER_CTX_mode(ctx)) {
- case EVP_CIPH_ECB_MODE:
- padlock_xcrypt_ecb(nbytes/AES_BLOCK_SIZE, cdata, out_arg, in_arg);
- break;
-
- case EVP_CIPH_CBC_MODE:
- memcpy(cdata->iv, ctx->iv, AES_BLOCK_SIZE);
- iv = padlock_xcrypt_cbc(nbytes/AES_BLOCK_SIZE, cdata, out_arg, in_arg);
- memcpy(ctx->iv, iv, AES_BLOCK_SIZE);
- break;
-
- case EVP_CIPH_CFB_MODE:
- memcpy(cdata->iv, ctx->iv, AES_BLOCK_SIZE);
- iv = padlock_xcrypt_cfb(nbytes/AES_BLOCK_SIZE, cdata, out_arg, in_arg);
- memcpy(ctx->iv, iv, AES_BLOCK_SIZE);
- break;
-
- case EVP_CIPH_OFB_MODE:
- memcpy(cdata->iv, ctx->iv, AES_BLOCK_SIZE);
- padlock_xcrypt_ofb(nbytes/AES_BLOCK_SIZE, cdata, out_arg, in_arg);
- memcpy(ctx->iv, cdata->iv, AES_BLOCK_SIZE);
- break;
-
- default:
- return 0;
- }
-
- memset(cdata->iv, 0, AES_BLOCK_SIZE);
-
- return 1;
-}
-
-#ifndef PADLOCK_CHUNK
-# define PADLOCK_CHUNK 512 /* Must be a power of 2 larger than 16 */
-#endif
-#if PADLOCK_CHUNK<16 || PADLOCK_CHUNK&(PADLOCK_CHUNK-1)
-# error "insane PADLOCK_CHUNK..."
-#endif
-
-/* Re-align the arguments to 16-Bytes boundaries and run the
- encryption function itself. This function is not AES-specific. */
-static int
-padlock_aes_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
- const unsigned char *in_arg, size_t nbytes)
-{
- struct padlock_cipher_data *cdata;
- const void *inp;
- unsigned char *out;
- void *iv;
- int inp_misaligned, out_misaligned, realign_in_loop;
- size_t chunk, allocated=0;
-
- /* ctx->num is maintained in byte-oriented modes,
- such as CFB and OFB... */
- if ((chunk = ctx->num)) { /* borrow chunk variable */
- unsigned char *ivp=ctx->iv;
-
- switch (EVP_CIPHER_CTX_mode(ctx)) {
- case EVP_CIPH_CFB_MODE:
- if (chunk >= AES_BLOCK_SIZE)
- return 0; /* bogus value */
-
- if (ctx->encrypt)
- while (chunk<AES_BLOCK_SIZE && nbytes!=0) {
- ivp[chunk] = *(out_arg++) = *(in_arg++) ^ ivp[chunk];
- chunk++, nbytes--;
- }
- else while (chunk<AES_BLOCK_SIZE && nbytes!=0) {
- unsigned char c = *(in_arg++);
- *(out_arg++) = c ^ ivp[chunk];
- ivp[chunk++] = c, nbytes--;
- }
-
- ctx->num = chunk%AES_BLOCK_SIZE;
- break;
- case EVP_CIPH_OFB_MODE:
- if (chunk >= AES_BLOCK_SIZE)
- return 0; /* bogus value */
-
- while (chunk<AES_BLOCK_SIZE && nbytes!=0) {
- *(out_arg++) = *(in_arg++) ^ ivp[chunk];
- chunk++, nbytes--;
- }
-
- ctx->num = chunk%AES_BLOCK_SIZE;
- break;
- }
- }
-
- if (nbytes == 0)
- return 1;
-#if 0
- if (nbytes % AES_BLOCK_SIZE)
- return 0; /* are we expected to do tail processing? */
-#else
- /* nbytes is always multiple of AES_BLOCK_SIZE in ECB and CBC
- modes and arbitrary value in byte-oriented modes, such as
- CFB and OFB... */
-#endif
-
- /* VIA promises CPUs that won't require alignment in the future.
- For now padlock_aes_align_required is initialized to 1 and
- the condition is never met... */
- /* C7 core is capable to manage unaligned input in non-ECB[!]
- mode, but performance penalties appear to be approximately
- same as for software alignment below or ~3x. They promise to
- improve it in the future, but for now we can just as well
- pretend that it can only handle aligned input... */
- if (!padlock_aes_align_required && (nbytes%AES_BLOCK_SIZE)==0)
- return padlock_aes_cipher_omnivorous(ctx, out_arg, in_arg, nbytes);
-
- inp_misaligned = (((size_t)in_arg) & 0x0F);
- out_misaligned = (((size_t)out_arg) & 0x0F);
-
- /* Note that even if output is aligned and input not,
- * I still prefer to loop instead of copy the whole
- * input and then encrypt in one stroke. This is done
- * in order to improve L1 cache utilization... */
- realign_in_loop = out_misaligned|inp_misaligned;
-
- if (!realign_in_loop && (nbytes%AES_BLOCK_SIZE)==0)
- return padlock_aes_cipher_omnivorous(ctx, out_arg, in_arg, nbytes);
-
- /* this takes one "if" out of the loops */
- chunk = nbytes;
- chunk %= PADLOCK_CHUNK;
- if (chunk==0) chunk = PADLOCK_CHUNK;
-
- if (out_misaligned) {
- /* optmize for small input */
- allocated = (chunk<nbytes?PADLOCK_CHUNK:nbytes);
- out = alloca(0x10 + allocated);
- out = NEAREST_ALIGNED(out);
- }
- else
- out = out_arg;
-
- cdata = ALIGNED_CIPHER_DATA(ctx);
- padlock_verify_context(cdata);
-
- switch (EVP_CIPHER_CTX_mode(ctx)) {
- case EVP_CIPH_ECB_MODE:
- do {
- if (inp_misaligned)
- 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 = padlock_memcpy(out_arg, out, chunk) + chunk;
- else
- out = out_arg+=chunk;
-
- nbytes -= chunk;
- chunk = PADLOCK_CHUNK;
- } while (nbytes);
- break;
-
- case EVP_CIPH_CBC_MODE:
- memcpy(cdata->iv, ctx->iv, AES_BLOCK_SIZE);
- goto cbc_shortcut;
- do {
- if (iv != cdata->iv)
- memcpy(cdata->iv, iv, AES_BLOCK_SIZE);
- chunk = PADLOCK_CHUNK;
- cbc_shortcut: /* optimize for small input */
- if (inp_misaligned)
- 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 = padlock_memcpy(out_arg, out, chunk) + chunk;
- else
- out = out_arg+=chunk;
-
- } while (nbytes -= chunk);
- memcpy(ctx->iv, iv, AES_BLOCK_SIZE);
- break;
-
- case EVP_CIPH_CFB_MODE:
- memcpy (iv = cdata->iv, ctx->iv, AES_BLOCK_SIZE);
- chunk &= ~(AES_BLOCK_SIZE-1);
- if (chunk) goto cfb_shortcut;
- else goto cfb_skiploop;
- do {
- if (iv != cdata->iv)
- memcpy(cdata->iv, iv, AES_BLOCK_SIZE);
- chunk = PADLOCK_CHUNK;
- cfb_shortcut: /* optimize for small input */
- if (inp_misaligned)
- 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 = padlock_memcpy(out_arg, out, chunk) + chunk;
- else
- out = out_arg+=chunk;
-
- nbytes -= chunk;
- } while (nbytes >= AES_BLOCK_SIZE);
-
- cfb_skiploop:
- if (nbytes) {
- unsigned char *ivp = cdata->iv;
-
- if (iv != ivp) {
- memcpy(ivp, iv, AES_BLOCK_SIZE);
- iv = ivp;
- }
- ctx->num = nbytes;
- if (cdata->cword.b.encdec) {
- cdata->cword.b.encdec=0;
- padlock_reload_key();
- padlock_xcrypt_ecb(1,cdata,ivp,ivp);
- cdata->cword.b.encdec=1;
- padlock_reload_key();
- while(nbytes) {
- unsigned char c = *(in_arg++);
- *(out_arg++) = c ^ *ivp;
- *(ivp++) = c, nbytes--;
- }
- }
- else { padlock_reload_key();
- padlock_xcrypt_ecb(1,cdata,ivp,ivp);
- padlock_reload_key();
- while (nbytes) {
- *ivp = *(out_arg++) = *(in_arg++) ^ *ivp;
- ivp++, nbytes--;
- }
- }
- }
-
- memcpy(ctx->iv, iv, AES_BLOCK_SIZE);
- break;
-
- case EVP_CIPH_OFB_MODE:
- memcpy(cdata->iv, ctx->iv, AES_BLOCK_SIZE);
- chunk &= ~(AES_BLOCK_SIZE-1);
- if (chunk) do {
- if (inp_misaligned)
- 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 = padlock_memcpy(out_arg, out, chunk) + chunk;
- else
- out = out_arg+=chunk;
-
- nbytes -= chunk;
- chunk = PADLOCK_CHUNK;
- } while (nbytes >= AES_BLOCK_SIZE);
-
- if (nbytes) {
- unsigned char *ivp = cdata->iv;
-
- ctx->num = nbytes;
- padlock_reload_key(); /* empirically found */
- padlock_xcrypt_ecb(1,cdata,ivp,ivp);
- padlock_reload_key(); /* empirically found */
- while (nbytes) {
- *(out_arg++) = *(in_arg++) ^ *ivp;
- ivp++, nbytes--;
- }
- }
-
- memcpy(ctx->iv, cdata->iv, AES_BLOCK_SIZE);
- break;
-
- default:
- return 0;
- }
-
- /* Clean the realign buffer if it was used */
- if (out_misaligned) {
- volatile unsigned long *p=(void *)out;
- size_t n = allocated/sizeof(*p);
- while (n--) *p++=0;
- }
-
- memset(cdata->iv, 0, AES_BLOCK_SIZE);
-
- return 1;
-}
-
-#endif /* OPENSSL_NO_AES */
-
-/* ===== Random Number Generator ===== */
-/*
- * This code is not engaged. The reason is that it does not comply
- * with recommendations for VIA RNG usage for secure applications
- * (posted at http://www.via.com.tw/en/viac3/c3.jsp) nor does it
- * provide meaningful error control...
- */
-/* Wrapper that provides an interface between the API and
- the raw PadLock RNG */
-static int
-padlock_rand_bytes(unsigned char *output, int count)
-{
- unsigned int eax, buf;
-
- while (count >= 8) {
- eax = padlock_xstore(output, 0);
- if (!(eax&(1<<6))) return 0; /* RNG disabled */
- /* this ---vv--- covers DC bias, Raw Bits and String Filter */
- if (eax&(0x1F<<10)) return 0;
- if ((eax&0x1F)==0) continue; /* no data, retry... */
- if ((eax&0x1F)!=8) return 0; /* fatal failure... */
- output += 8;
- count -= 8;
- }
- while (count > 0) {
- eax = padlock_xstore(&buf, 3);
- if (!(eax&(1<<6))) return 0; /* RNG disabled */
- /* this ---vv--- covers DC bias, Raw Bits and String Filter */
- if (eax&(0x1F<<10)) return 0;
- if ((eax&0x1F)==0) continue; /* no data, retry... */
- if ((eax&0x1F)!=1) return 0; /* fatal failure... */
- *output++ = (unsigned char)buf;
- count--;
- }
- *(volatile unsigned int *)&buf=0;
-
- return 1;
-}
-
-/* Dummy but necessary function */
-static int
-padlock_rand_status(void)
-{
- return 1;
-}
-
-/* Prepare structure for registration */
-static RAND_METHOD padlock_rand = {
- NULL, /* seed */
- padlock_rand_bytes, /* bytes */
- NULL, /* cleanup */
- NULL, /* add */
- padlock_rand_bytes, /* pseudorand */
- padlock_rand_status, /* rand status */
-};
-
-#endif /* COMPILE_HW_PADLOCK */
-
-#endif /* !OPENSSL_NO_HW_PADLOCK */
-#endif /* !OPENSSL_NO_HW */