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Implement support for HMAC/SHA1 and HMAC/SHA256 acceleration found in

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new VIA CPUs.
For older CPUs HMAC/SHA1 and HMAC/SHA256 (and others) will still be done
in software.

Move symmetric cryptography (currently only AES-CBC 128/192/256) to
padlock_cipher.c file. Move HMAC cryptography to padlock_hash.c file.

Hardware from:	Centaur Technologies
This commit is contained in:
Pawel Jakub Dawidek 2006-07-22 16:18:47 +00:00
parent ff0c6b70eb
commit 5333bd4763
6 changed files with 767 additions and 334 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/conf/files.i386
View File

@ -135,6 +135,8 @@ bf_enc.o optional crypto | ipsec ipsec_esp \
no-implicit-rule
crypto/des/arch/i386/des_enc.S optional crypto | ipsec ipsec_esp | netsmb
crypto/via/padlock.c optional padlock
crypto/via/padlock_cipher.c optional padlock
crypto/via/padlock_hash.c optional padlock
dev/advansys/adv_isa.c optional adv isa
dev/aic/aic_isa.c optional aic isa
dev/arcmsr/arcmsr.c optional arcmsr pci

395
sys/crypto/via/padlock.c
View File

@ -1,6 +1,5 @@
/*-
* Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004 Mark R V Murray
* Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -25,25 +24,6 @@
* SUCH DAMAGE.
*/
/* $OpenBSD: via.c,v 1.3 2004/06/15 23:36:55 deraadt Exp $ */
/*-
* Copyright (c) 2003 Jason Wright
* Copyright (c) 2003, 2004 Theo de Raadt
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
@ -63,66 +43,14 @@ __FBSDID("$FreeBSD$");
#endif
#include <opencrypto/cryptodev.h>
#include <opencrypto/cryptosoft.h> /* for hmac_ipad_buffer and hmac_opad_buffer */
#include <opencrypto/xform.h>
#include <crypto/rijndael/rijndael.h>
#include <crypto/via/padlock.h>
#define PADLOCK_ROUND_COUNT_AES128 10
#define PADLOCK_ROUND_COUNT_AES192 12
#define PADLOCK_ROUND_COUNT_AES256 14
#define PADLOCK_ALGORITHM_TYPE_AES 0
#define PADLOCK_KEY_GENERATION_HW 0
#define PADLOCK_KEY_GENERATION_SW 1
#define PADLOCK_DIRECTION_ENCRYPT 0
#define PADLOCK_DIRECTION_DECRYPT 1
#define PADLOCK_KEY_SIZE_128 0
#define PADLOCK_KEY_SIZE_192 1
#define PADLOCK_KEY_SIZE_256 2
union padlock_cw {
uint64_t raw;
struct {
u_int round_count : 4;
u_int algorithm_type : 3;
u_int key_generation : 1;
u_int intermediate : 1;
u_int direction : 1;
u_int key_size : 2;
u_int filler0 : 20;
u_int filler1 : 32;
u_int filler2 : 32;
u_int filler3 : 32;
} __field;
};
#define cw_round_count __field.round_count
#define cw_algorithm_type __field.algorithm_type
#define cw_key_generation __field.key_generation
#define cw_intermediate __field.intermediate
#define cw_direction __field.direction
#define cw_key_size __field.key_size
#define cw_filler0 __field.filler0
#define cw_filler1 __field.filler1
#define cw_filler2 __field.filler2
#define cw_filler3 __field.filler3
struct padlock_session {
union padlock_cw ses_cw __aligned(16);
uint32_t ses_ekey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16); /* 128 bit aligned */
uint32_t ses_dkey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16); /* 128 bit aligned */
uint8_t ses_iv[16] __aligned(16); /* 128 bit aligned */
struct auth_hash *ses_axf;
uint8_t *ses_ictx;
uint8_t *ses_octx;
int ses_mlen;
int ses_used;
uint32_t ses_id;
TAILQ_ENTRY(padlock_session) ses_next;
};
/*
* Technical documentation about the PadLock engine can be found here:
*
* http://www.via.com.tw/en/downloads/whitepapers/initiatives/padlock/programming_guide.pdf
*/
struct padlock_softc {
int32_t sc_cid;
@ -139,47 +67,50 @@ static int padlock_freesession(void *arg __unused, uint64_t tid);
static int padlock_process(void *arg __unused, struct cryptop *crp,
int hint __unused);
static __inline void
padlock_cbc(void *in, void *out, size_t count, void *key, union padlock_cw *cw,
void *iv)
{
#ifdef __GNUCLIKE_ASM
/* The .byte line is really VIA C3 "xcrypt-cbc" instruction */
__asm __volatile(
"pushf \n\t"
"popf \n\t"
"rep \n\t"
".byte 0x0f, 0xa7, 0xd0"
: "+a" (iv), "+c" (count), "+D" (out), "+S" (in)
: "b" (key), "d" (cw)
: "cc", "memory"
);
#endif
}
MALLOC_DEFINE(M_PADLOCK, "padlock_data", "PadLock Data");
static int
padlock_init(void)
{
struct padlock_softc *sc;
char capp[256];
#if defined(__i386__) && !defined(PC98)
/* If there is no AES support, we has nothing to do here. */
if (!(via_feature_xcrypt & VIA_HAS_AES)) {
printf("PADLOCK: No ACE support.\n");
printf("PadLock: No ACE support.\n");
return (EINVAL);
} else
printf("PADLOCK: HW support loaded.\n");
}
strlcpy(capp, "AES-CBC", sizeof(capp));
#if 0
strlcat(capp, ",AES-EBC", sizeof(capp));
strlcat(capp, ",AES-CFB", sizeof(capp));
strlcat(capp, ",AES-OFB", sizeof(capp));
#endif
if (via_feature_xcrypt & VIA_HAS_SHA) {
strlcat(capp, ",SHA1", sizeof(capp));
strlcat(capp, ",SHA256", sizeof(capp));
}
#if 0
if (via_feature_xcrypt & VIA_HAS_AESCTR)
strlcat(capp, ",AES-CTR", sizeof(capp));
if (via_feature_xcrypt & VIA_HAS_MM)
strlcat(capp, ",RSA", sizeof(capp));
#endif
printf("PadLock: HW support loaded for %s.\n", capp);
#else
return (EINVAL);
#endif
padlock_sc = sc = malloc(sizeof(*padlock_sc), M_DEVBUF,
padlock_sc = sc = malloc(sizeof(*padlock_sc), M_PADLOCK,
M_WAITOK | M_ZERO);
TAILQ_INIT(&sc->sc_sessions);
sc->sc_sid = 1;
sc->sc_cid = crypto_get_driverid(0);
if (sc->sc_cid < 0) {
printf("PADLOCK: Could not get crypto driver id.\n");
free(padlock_sc, M_DEVBUF);
printf("PadLock: Could not get crypto driver id.\n");
free(padlock_sc, M_PADLOCK);
padlock_sc = NULL;
return (ENOMEM);
}
@ -218,7 +149,7 @@ padlock_destroy(void)
}
if (active > 0) {
mtx_unlock(&sc->sc_sessions_mtx);
printf("PADLOCK: Cannot destroy, %u sessions active.\n",
printf("PadLock: Cannot destroy, %u sessions active.\n",
active);
return (EBUSY);
}
@ -226,102 +157,21 @@ padlock_destroy(void)
for (ses = TAILQ_FIRST(&sc->sc_sessions); ses != NULL;
ses = TAILQ_FIRST(&sc->sc_sessions)) {
TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next);
free(ses, M_DEVBUF);
free(ses, M_PADLOCK);
}
mtx_destroy(&sc->sc_sessions_mtx);
crypto_unregister_all(sc->sc_cid);
free(sc, M_DEVBUF);
free(sc, M_PADLOCK);
return (0);
}
static void
padlock_setup_enckey(struct padlock_session *ses, caddr_t key, int klen)
{
union padlock_cw *cw;
int i;
cw = &ses->ses_cw;
if (cw->cw_key_generation == PADLOCK_KEY_GENERATION_SW) {
/* Build expanded keys for both directions */
rijndaelKeySetupEnc(ses->ses_ekey, key, klen);
rijndaelKeySetupDec(ses->ses_dkey, key, klen);
for (i = 0; i < 4 * (RIJNDAEL_MAXNR + 1); i++) {
ses->ses_ekey[i] = ntohl(ses->ses_ekey[i]);
ses->ses_dkey[i] = ntohl(ses->ses_dkey[i]);
}
} else {
bcopy(key, ses->ses_ekey, klen);
bcopy(key, ses->ses_dkey, klen);
}
}
static void
padlock_setup_mackey(struct padlock_session *ses, caddr_t key, int klen)
{
struct auth_hash *axf;
int i;
klen /= 8;
axf = ses->ses_axf;
for (i = 0; i < klen; i++)
key[i] ^= HMAC_IPAD_VAL;
axf->Init(ses->ses_ictx);
axf->Update(ses->ses_ictx, key, klen);
axf->Update(ses->ses_ictx, hmac_ipad_buffer, axf->blocksize - klen);
for (i = 0; i < klen; i++)
key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
axf->Init(ses->ses_octx);
axf->Update(ses->ses_octx, key, klen);
axf->Update(ses->ses_octx, hmac_opad_buffer, axf->blocksize - klen);
for (i = 0; i < klen; i++)
key[i] ^= HMAC_OPAD_VAL;
}
/*
* Compute keyed-hash authenticator.
*/
static int
padlock_authcompute(struct padlock_session *ses, struct cryptodesc *crd,
caddr_t buf, int flags)
{
u_char hash[HASH_MAX_LEN];
struct auth_hash *axf;
union authctx ctx;
int error;
axf = ses->ses_axf;
bcopy(ses->ses_ictx, &ctx, axf->ctxsize);
error = crypto_apply(flags, buf, crd->crd_skip, crd->crd_len,
(int (*)(void *, void *, unsigned int))axf->Update, (caddr_t)&ctx);
if (error != 0)
return (error);
axf->Final(hash, &ctx);
bcopy(ses->ses_octx, &ctx, axf->ctxsize);
axf->Update(&ctx, hash, axf->hashsize);
axf->Final(hash, &ctx);
/* Inject the authentication data */
crypto_copyback(flags, buf, crd->crd_inject,
ses->ses_mlen == 0 ? axf->hashsize : ses->ses_mlen, hash);
return (0);
}
static int
padlock_newsession(void *arg __unused, uint32_t *sidp, struct cryptoini *cri)
{
struct padlock_softc *sc = padlock_sc;
struct padlock_session *ses = NULL;
struct cryptoini *encini, *macini;
union padlock_cw *cw;
int error;
if (sc == NULL || sidp == NULL || cri == NULL)
return (EINVAL);
@ -357,10 +207,6 @@ padlock_newsession(void *arg __unused, uint32_t *sidp, struct cryptoini *cri)
*/
if (encini == NULL)
return (EINVAL);
if (encini->cri_klen != 128 && encini->cri_klen != 192 &&
encini->cri_klen != 256) {
return (EINVAL);
}
/*
* Let's look for a free session structure.
@ -380,7 +226,7 @@ padlock_newsession(void *arg __unused, uint32_t *sidp, struct cryptoini *cri)
}
mtx_unlock(&sc->sc_sessions_mtx);
if (ses == NULL) {
ses = malloc(sizeof(*ses), M_DEVBUF, M_NOWAIT | M_ZERO);
ses = malloc(sizeof(*ses), M_PADLOCK, M_NOWAIT | M_ZERO);
if (ses == NULL)
return (ENOMEM);
ses->ses_used = 1;
@ -390,76 +236,17 @@ padlock_newsession(void *arg __unused, uint32_t *sidp, struct cryptoini *cri)
mtx_unlock(&sc->sc_sessions_mtx);
}
cw = &ses->ses_cw;
bzero(cw, sizeof(*cw));
cw->cw_algorithm_type = PADLOCK_ALGORITHM_TYPE_AES;
cw->cw_key_generation = PADLOCK_KEY_GENERATION_SW;
cw->cw_intermediate = 0;
switch (encini->cri_klen) {
case 128:
cw->cw_round_count = PADLOCK_ROUND_COUNT_AES128;
cw->cw_key_size = PADLOCK_KEY_SIZE_128;
#ifdef HW_KEY_GENERATION
/* This doesn't buy us much, that's why it is commented out. */
cw->cw_key_generation = PADLOCK_KEY_GENERATION_HW;
#endif
break;
case 192:
cw->cw_round_count = PADLOCK_ROUND_COUNT_AES192;
cw->cw_key_size = PADLOCK_KEY_SIZE_192;
break;
case 256:
cw->cw_round_count = PADLOCK_ROUND_COUNT_AES256;
cw->cw_key_size = PADLOCK_KEY_SIZE_256;
break;
error = padlock_cipher_setup(ses, encini);
if (error != 0) {
padlock_freesession(NULL, ses->ses_id);
return (error);
}
if (encini->cri_key != NULL)
padlock_setup_enckey(ses, encini->cri_key, encini->cri_klen);
arc4rand(ses->ses_iv, sizeof(ses->ses_iv), 0);
if (macini != NULL) {
ses->ses_mlen = macini->cri_mlen;
/* Find software structure which describes HMAC algorithm. */
switch (macini->cri_alg) {
case CRYPTO_NULL_HMAC:
ses->ses_axf = &auth_hash_null;
break;
case CRYPTO_MD5_HMAC:
ses->ses_axf = &auth_hash_hmac_md5;
break;
case CRYPTO_SHA1_HMAC:
ses->ses_axf = &auth_hash_hmac_sha1;
break;
case CRYPTO_RIPEMD160_HMAC:
ses->ses_axf = &auth_hash_hmac_ripemd_160;
break;
case CRYPTO_SHA2_256_HMAC:
ses->ses_axf = &auth_hash_hmac_sha2_256;
break;
case CRYPTO_SHA2_384_HMAC:
ses->ses_axf = &auth_hash_hmac_sha2_384;
break;
case CRYPTO_SHA2_512_HMAC:
ses->ses_axf = &auth_hash_hmac_sha2_512;
break;
}
/* Allocate memory for HMAC inner and outer contexts. */
ses->ses_ictx = malloc(ses->ses_axf->ctxsize, M_CRYPTO_DATA,
M_NOWAIT);
ses->ses_octx = malloc(ses->ses_axf->ctxsize, M_CRYPTO_DATA,
M_NOWAIT);
if (ses->ses_ictx == NULL || ses->ses_octx == NULL) {
error = padlock_hash_setup(ses, macini);
if (error != 0) {
padlock_freesession(NULL, ses->ses_id);
return (ENOMEM);
}
/* Setup key if given. */
if (macini->cri_key != NULL) {
padlock_setup_mackey(ses, macini->cri_key,
macini->cri_klen);
return (error);
}
}
@ -486,16 +273,7 @@ padlock_freesession(void *arg __unused, uint64_t tid)
return (EINVAL);
}
TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next);
if (ses->ses_ictx != NULL) {
bzero(ses->ses_ictx, ses->ses_axf->ctxsize);
free(ses->ses_ictx, M_CRYPTO_DATA);
ses->ses_ictx = NULL;
}
if (ses->ses_octx != NULL) {
bzero(ses->ses_ictx, ses->ses_axf->ctxsize);
free(ses->ses_octx, M_CRYPTO_DATA);
ses->ses_octx = NULL;
}
padlock_hash_free(ses);
bzero(ses, sizeof(*ses));
ses->ses_used = 0;
TAILQ_INSERT_TAIL(&sc->sc_sessions, ses, ses_next);
@ -507,15 +285,11 @@ static int
padlock_process(void *arg __unused, struct cryptop *crp, int hint __unused)
{
struct padlock_softc *sc = padlock_sc;
struct padlock_session *ses;
union padlock_cw *cw;
struct padlock_session *ses = NULL;
struct cryptodesc *crd, *enccrd, *maccrd;
uint32_t *key;
u_char *buf, *abuf;
int error = 0;
enccrd = maccrd = NULL;
buf = NULL;
if (crp == NULL || crp->crp_callback == NULL || crp->crp_desc == NULL) {
error = EINVAL;
@ -564,81 +338,36 @@ padlock_process(void *arg __unused, struct cryptop *crp, int hint __unused)
goto out;
}
buf = malloc(enccrd->crd_len + 16, M_DEVBUF, M_NOWAIT);
if (buf == NULL) {
error = ENOMEM;
goto out;
}
/* Buffer has to be 16 bytes aligned. */
abuf = buf + 16 - ((uintptr_t)buf % 16);
if ((enccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0)
padlock_setup_enckey(ses, enccrd->crd_key, enccrd->crd_klen);
if (maccrd != NULL && (maccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0)
padlock_setup_mackey(ses, maccrd->crd_key, maccrd->crd_klen);
cw = &ses->ses_cw;
cw->cw_filler0 = 0;
cw->cw_filler1 = 0;
cw->cw_filler2 = 0;
cw->cw_filler3 = 0;
if ((enccrd->crd_flags & CRD_F_ENCRYPT) != 0) {
cw->cw_direction = PADLOCK_DIRECTION_ENCRYPT;
key = ses->ses_ekey;
if ((enccrd->crd_flags & CRD_F_IV_EXPLICIT) != 0)
bcopy(enccrd->crd_iv, ses->ses_iv, 16);
if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
crypto_copyback(crp->crp_flags, crp->crp_buf,
enccrd->crd_inject, AES_BLOCK_LEN, ses->ses_iv);
}
} else {
cw->cw_direction = PADLOCK_DIRECTION_DECRYPT;
key = ses->ses_dkey;
if ((enccrd->crd_flags & CRD_F_IV_EXPLICIT) != 0)
bcopy(enccrd->crd_iv, ses->ses_iv, AES_BLOCK_LEN);
else {
crypto_copydata(crp->crp_flags, crp->crp_buf,
enccrd->crd_inject, AES_BLOCK_LEN, ses->ses_iv);
}
}
/* Perform data authentication if requested before encryption. */
if (maccrd != NULL && maccrd->crd_next == enccrd) {
error = padlock_authcompute(ses, maccrd, crp->crp_buf,
crp->crp_flags);
error = padlock_hash_process(ses, maccrd, crp);
if (error != 0)
goto out;
}
crypto_copydata(crp->crp_flags, crp->crp_buf, enccrd->crd_skip,
enccrd->crd_len, abuf);
padlock_cbc(abuf, abuf, enccrd->crd_len / 16, key, cw, ses->ses_iv);
crypto_copyback(crp->crp_flags, crp->crp_buf, enccrd->crd_skip,
enccrd->crd_len, abuf);
error = padlock_cipher_process(ses, enccrd, crp);
if (error != 0)
goto out;
/* Perform data authentication if requested after encryption. */
if (maccrd != NULL && enccrd->crd_next == maccrd) {
error = padlock_authcompute(ses, maccrd, crp->crp_buf,
crp->crp_flags);
error = padlock_hash_process(ses, maccrd, crp);
if (error != 0)
goto out;
}
/* copy out last block for use as next session IV */
if ((enccrd->crd_flags & CRD_F_ENCRYPT) != 0) {
crypto_copydata(crp->crp_flags, crp->crp_buf,
enccrd->crd_skip + enccrd->crd_len - AES_BLOCK_LEN,
AES_BLOCK_LEN, ses->ses_iv);
}
out:
if (buf != NULL) {
bzero(buf, enccrd->crd_len + 16);
free(buf, M_DEVBUF);
#if 0
/*
* This code is not necessary, because contexts will be freed on next
* padlock_setup_mackey() call or at padlock_freesession() call.
*/
if (ses != NULL && maccrd != NULL &&
(maccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0) {
padlock_free_ctx(ses->ses_axf, ses->ses_ictx);
padlock_free_ctx(ses->ses_axf, ses->ses_octx);
}
#endif
crp->crp_etype = error;
crypto_done(crp);
return (error);

87
sys/crypto/via/padlock.h Normal file
View File

@ -0,0 +1,87 @@
/*-
* Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS 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 AUTHORS OR 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.
*
* $FreeBSD$
*/
#ifndef _PADLOCK_H_
#define _PADLOCK_H_
#include <opencrypto/cryptodev.h>
#include <crypto/rijndael/rijndael.h>
union padlock_cw {
uint64_t raw;
struct {
u_int round_count : 4;
u_int algorithm_type : 3;
u_int key_generation : 1;
u_int intermediate : 1;
u_int direction : 1;
u_int key_size : 2;
u_int filler0 : 20;
u_int filler1 : 32;
u_int filler2 : 32;
u_int filler3 : 32;
} __field;
};
#define cw_round_count __field.round_count
#define cw_algorithm_type __field.algorithm_type
#define cw_key_generation __field.key_generation
#define cw_intermediate __field.intermediate
#define cw_direction __field.direction
#define cw_key_size __field.key_size
#define cw_filler0 __field.filler0
#define cw_filler1 __field.filler1
#define cw_filler2 __field.filler2
#define cw_filler3 __field.filler3
struct padlock_session {
union padlock_cw ses_cw __aligned(16);
uint32_t ses_ekey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16); /* 128 bit aligned */
uint32_t ses_dkey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16); /* 128 bit aligned */
uint8_t ses_iv[16] __aligned(16); /* 128 bit aligned */
struct auth_hash *ses_axf;
uint8_t *ses_ictx;
uint8_t *ses_octx;
int ses_mlen;
int ses_used;
uint32_t ses_id;
TAILQ_ENTRY(padlock_session) ses_next;
};
#define PADLOCK_ALIGN(p) (void *)((char *)(p) - ((uintptr_t)(p) % 16) + 16)
int padlock_cipher_setup(struct padlock_session *ses,
struct cryptoini *encini);
int padlock_cipher_process(struct padlock_session *ses,
struct cryptodesc *enccrd, struct cryptop *crp);
int padlock_hash_setup(struct padlock_session *ses,
struct cryptoini *macini);
int padlock_hash_process(struct padlock_session *ses,
struct cryptodesc *maccrd, struct cryptop *crp);
void padlock_hash_free(struct padlock_session *ses);
#endif /* !_PADLOCK_H_ */

226
sys/crypto/via/padlock_cipher.c Normal file
View File

@ -0,0 +1,226 @@
/*-
* Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004 Mark R V Murray
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS 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 AUTHORS OR 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.
*/
/* $OpenBSD: via.c,v 1.3 2004/06/15 23:36:55 deraadt Exp $ */
/*-
* Copyright (c) 2003 Jason Wright
* Copyright (c) 2003, 2004 Theo de Raadt
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/malloc.h>
#include <sys/libkern.h>
#include <opencrypto/cryptodev.h>
#include <crypto/rijndael/rijndael.h>
#include <crypto/via/padlock.h>
#define PADLOCK_ROUND_COUNT_AES128 10
#define PADLOCK_ROUND_COUNT_AES192 12
#define PADLOCK_ROUND_COUNT_AES256 14
#define PADLOCK_ALGORITHM_TYPE_AES 0
#define PADLOCK_KEY_GENERATION_HW 0
#define PADLOCK_KEY_GENERATION_SW 1
#define PADLOCK_DIRECTION_ENCRYPT 0
#define PADLOCK_DIRECTION_DECRYPT 1
#define PADLOCK_KEY_SIZE_128 0
#define PADLOCK_KEY_SIZE_192 1
#define PADLOCK_KEY_SIZE_256 2
MALLOC_DECLARE(M_PADLOCK);
static __inline void
padlock_cbc(void *in, void *out, size_t count, void *key, union padlock_cw *cw,
void *iv)
{
#ifdef __GNUCLIKE_ASM
/* The .byte line is really VIA C3 "xcrypt-cbc" instruction */
__asm __volatile(
"pushf \n\t"
"popf \n\t"
"rep \n\t"
".byte 0x0f, 0xa7, 0xd0"
: "+a" (iv), "+c" (count), "+D" (out), "+S" (in)
: "b" (key), "d" (cw)
: "cc", "memory"
);
#endif
}
static void
padlock_cipher_key_setup(struct padlock_session *ses, caddr_t key, int klen)
{
union padlock_cw *cw;
int i;
cw = &ses->ses_cw;
if (cw->cw_key_generation == PADLOCK_KEY_GENERATION_SW) {
/* Build expanded keys for both directions */
rijndaelKeySetupEnc(ses->ses_ekey, key, klen);
rijndaelKeySetupDec(ses->ses_dkey, key, klen);
for (i = 0; i < 4 * (RIJNDAEL_MAXNR + 1); i++) {
ses->ses_ekey[i] = ntohl(ses->ses_ekey[i]);
ses->ses_dkey[i] = ntohl(ses->ses_dkey[i]);
}
} else {
bcopy(key, ses->ses_ekey, klen);
bcopy(key, ses->ses_dkey, klen);
}
}
int
padlock_cipher_setup(struct padlock_session *ses, struct cryptoini *encini)
{
union padlock_cw *cw;
if (encini->cri_klen != 128 && encini->cri_klen != 192 &&
encini->cri_klen != 256) {
return (EINVAL);
}
cw = &ses->ses_cw;
bzero(cw, sizeof(*cw));
cw->cw_algorithm_type = PADLOCK_ALGORITHM_TYPE_AES;
cw->cw_key_generation = PADLOCK_KEY_GENERATION_SW;
cw->cw_intermediate = 0;
switch (encini->cri_klen) {
case 128:
cw->cw_round_count = PADLOCK_ROUND_COUNT_AES128;
cw->cw_key_size = PADLOCK_KEY_SIZE_128;
#ifdef HW_KEY_GENERATION
/* This doesn't buy us much, that's why it is commented out. */
cw->cw_key_generation = PADLOCK_KEY_GENERATION_HW;
#endif
break;
case 192:
cw->cw_round_count = PADLOCK_ROUND_COUNT_AES192;
cw->cw_key_size = PADLOCK_KEY_SIZE_192;
break;
case 256:
cw->cw_round_count = PADLOCK_ROUND_COUNT_AES256;
cw->cw_key_size = PADLOCK_KEY_SIZE_256;
break;
}
if (encini->cri_key != NULL) {
padlock_cipher_key_setup(ses, encini->cri_key,
encini->cri_klen);
}
arc4rand(ses->ses_iv, sizeof(ses->ses_iv), 0);
return (0);
}
int
padlock_cipher_process(struct padlock_session *ses, struct cryptodesc *enccrd,
struct cryptop *crp)
{
union padlock_cw *cw;
u_char *buf, *abuf;
uint32_t *key;
buf = malloc(enccrd->crd_len + 16, M_PADLOCK, M_NOWAIT);
if (buf == NULL)
return (ENOMEM);
/* Buffer has to be 16 bytes aligned. */
abuf = PADLOCK_ALIGN(buf);
if ((enccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0) {
padlock_cipher_key_setup(ses, enccrd->crd_key,
enccrd->crd_klen);
}
cw = &ses->ses_cw;
cw->cw_filler0 = 0;
cw->cw_filler1 = 0;
cw->cw_filler2 = 0;
cw->cw_filler3 = 0;
if ((enccrd->crd_flags & CRD_F_ENCRYPT) != 0) {
cw->cw_direction = PADLOCK_DIRECTION_ENCRYPT;
key = ses->ses_ekey;
if ((enccrd->crd_flags & CRD_F_IV_EXPLICIT) != 0)
bcopy(enccrd->crd_iv, ses->ses_iv, 16);
if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
crypto_copyback(crp->crp_flags, crp->crp_buf,
enccrd->crd_inject, AES_BLOCK_LEN, ses->ses_iv);
}
} else {
cw->cw_direction = PADLOCK_DIRECTION_DECRYPT;
key = ses->ses_dkey;
if ((enccrd->crd_flags & CRD_F_IV_EXPLICIT) != 0)
bcopy(enccrd->crd_iv, ses->ses_iv, AES_BLOCK_LEN);
else {
crypto_copydata(crp->crp_flags, crp->crp_buf,
enccrd->crd_inject, AES_BLOCK_LEN, ses->ses_iv);
}
}
crypto_copydata(crp->crp_flags, crp->crp_buf, enccrd->crd_skip,
enccrd->crd_len, abuf);
padlock_cbc(abuf, abuf, enccrd->crd_len / 16, key, cw, ses->ses_iv);
crypto_copyback(crp->crp_flags, crp->crp_buf, enccrd->crd_skip,
enccrd->crd_len, abuf);
/* copy out last block for use as next session IV */
if ((enccrd->crd_flags & CRD_F_ENCRYPT) != 0) {
crypto_copydata(crp->crp_flags, crp->crp_buf,
enccrd->crd_skip + enccrd->crd_len - AES_BLOCK_LEN,
AES_BLOCK_LEN, ses->ses_iv);
}
if (buf != NULL) {
bzero(buf, enccrd->crd_len + 16);
free(buf, M_PADLOCK);
}
return (0);
}

389
sys/crypto/via/padlock_hash.c Normal file
View File

@ -0,0 +1,389 @@
/*-
* Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS 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 AUTHORS OR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/malloc.h>
#include <sys/libkern.h>
#include <sys/endian.h>
#if defined(__i386__) && !defined(PC98)
#include <machine/cpufunc.h>
#include <machine/cputypes.h>
#include <machine/md_var.h>
#include <machine/specialreg.h>
#endif
#include <opencrypto/cryptodev.h>
#include <opencrypto/cryptosoft.h> /* for hmac_ipad_buffer and hmac_opad_buffer */
#include <opencrypto/xform.h>
#include <crypto/via/padlock.h>
/*
* Implementation notes.
*
* Some VIA CPUs provides SHA1 and SHA256 acceleration.
* We implement all HMAC algorithms provided by crypto(9) framework, but we do
* the crypto work in software unless this is HMAC/SHA1 or HMAC/SHA256 and
* our CPU can accelerate it.
*
* Additional CPU instructions, which preform SHA1 and SHA256 are one-shot
* functions - we have only one chance to give the data, CPU itself will add
* the padding and calculate hash automatically.
* This means, it is not possible to implement common init(), update(), final()
* methods.
* The way I've choosen is to keep adding data to the buffer on update()
* (reallocating the buffer if necessary) and call XSHA{1,256} instruction on
* final().
*/
struct padlock_sha_ctx {
uint8_t *psc_buf;
int psc_offset;
int psc_size;
};
CTASSERT(sizeof(struct padlock_sha_ctx) <= sizeof(union authctx));
static void padlock_sha_init(struct padlock_sha_ctx *ctx);
static int padlock_sha_update(struct padlock_sha_ctx *ctx, uint8_t *buf,
uint16_t bufsize);
static void padlock_sha1_final(uint8_t *hash, struct padlock_sha_ctx *ctx);
static void padlock_sha256_final(uint8_t *hash, struct padlock_sha_ctx *ctx);
static struct auth_hash padlock_hmac_sha1 = {
CRYPTO_SHA1_HMAC, "HMAC-SHA1",
20, SHA1_HASH_LEN, SHA1_HMAC_BLOCK_LEN, sizeof(struct padlock_sha_ctx),
(void (*)(void *))padlock_sha_init,
(int (*)(void *, uint8_t *, uint16_t))padlock_sha_update,
(void (*)(uint8_t *, void *))padlock_sha1_final
};
static struct auth_hash padlock_hmac_sha256 = {
CRYPTO_SHA2_256_HMAC, "HMAC-SHA2-256",
32, SHA2_256_HASH_LEN, SHA2_256_HMAC_BLOCK_LEN, sizeof(struct padlock_sha_ctx),
(void (*)(void *))padlock_sha_init,
(int (*)(void *, uint8_t *, uint16_t))padlock_sha_update,
(void (*)(uint8_t *, void *))padlock_sha256_final
};
MALLOC_DECLARE(M_PADLOCK);
static __inline void
padlock_output_block(uint32_t *src, uint32_t *dst, size_t count)
{
while (count-- > 0)
*dst++ = bswap32(*src++);
}
static void
padlock_do_sha1(const u_char *in, u_char *out, int count)
{
u_char buf[128+16]; /* PadLock needs at least 128 bytes buffer. */
u_char *result = PADLOCK_ALIGN(buf);
((uint32_t *)result)[0] = 0x67452301;
((uint32_t *)result)[1] = 0xEFCDAB89;
((uint32_t *)result)[2] = 0x98BADCFE;
((uint32_t *)result)[3] = 0x10325476;
((uint32_t *)result)[4] = 0xC3D2E1F0;
#ifdef __GNUCLIKE_ASM
__asm __volatile(
".byte 0xf3, 0x0f, 0xa6, 0xc8" /* rep xsha1 */
: "+S"(in), "+D"(result)
: "c"(count), "a"(0)
);
#endif
padlock_output_block((uint32_t *)result, (uint32_t *)out,
SHA1_HASH_LEN / sizeof(uint32_t));
}
static void
padlock_do_sha256(const char *in, char *out, int count)
{
char buf[128+16]; /* PadLock needs at least 128 bytes buffer. */
char *result = PADLOCK_ALIGN(buf);
((uint32_t *)result)[0] = 0x6A09E667;
((uint32_t *)result)[1] = 0xBB67AE85;
((uint32_t *)result)[2] = 0x3C6EF372;
((uint32_t *)result)[3] = 0xA54FF53A;
((uint32_t *)result)[4] = 0x510E527F;
((uint32_t *)result)[5] = 0x9B05688C;
((uint32_t *)result)[6] = 0x1F83D9AB;
((uint32_t *)result)[7] = 0x5BE0CD19;
#ifdef __GNUCLIKE_ASM
__asm __volatile(
".byte 0xf3, 0x0f, 0xa6, 0xd0" /* rep xsha256 */
: "+S"(in), "+D"(result)
: "c"(count), "a"(0)
);
#endif
padlock_output_block((uint32_t *)result, (uint32_t *)out,
SHA2_256_HASH_LEN / sizeof(uint32_t));
}
static void
padlock_sha_init(struct padlock_sha_ctx *ctx)
{
ctx->psc_buf = NULL;
ctx->psc_offset = 0;
ctx->psc_size = 0;
}
static int
padlock_sha_update(struct padlock_sha_ctx *ctx, uint8_t *buf, uint16_t bufsize)
{
if (ctx->psc_size - ctx->psc_offset < bufsize) {
ctx->psc_size = MAX(ctx->psc_size * 2, ctx->psc_size + bufsize);
ctx->psc_buf = realloc(ctx->psc_buf, ctx->psc_size, M_PADLOCK,
M_WAITOK);
}
bcopy(buf, ctx->psc_buf + ctx->psc_offset, bufsize);
ctx->psc_offset += bufsize;
return (0);
}
static void
padlock_sha_free(struct padlock_sha_ctx *ctx)
{
if (ctx->psc_buf != NULL) {
//bzero(ctx->psc_buf, ctx->psc_size);
free(ctx->psc_buf, M_PADLOCK);
ctx->psc_buf = NULL;
ctx->psc_offset = 0;
ctx->psc_size = 0;
}
}
static void
padlock_sha1_final(uint8_t *hash, struct padlock_sha_ctx *ctx)
{
padlock_do_sha1(ctx->psc_buf, hash, ctx->psc_offset);
padlock_sha_free(ctx);
}
static void
padlock_sha256_final(uint8_t *hash, struct padlock_sha_ctx *ctx)
{
padlock_do_sha256(ctx->psc_buf, hash, ctx->psc_offset);
padlock_sha_free(ctx);
}
static void
padlock_copy_ctx(struct auth_hash *axf, void *sctx, void *dctx)
{
if ((via_feature_xcrypt & VIA_HAS_SHA) != 0 &&
(axf->type == CRYPTO_SHA1_HMAC ||
axf->type == CRYPTO_SHA2_256_HMAC)) {
struct padlock_sha_ctx *spctx = sctx, *dpctx = dctx;
dpctx->psc_offset = spctx->psc_offset;
dpctx->psc_size = spctx->psc_size;
dpctx->psc_buf = malloc(dpctx->psc_size, M_PADLOCK, M_WAITOK);
bcopy(spctx->psc_buf, dpctx->psc_buf, dpctx->psc_size);
} else {
bcopy(sctx, dctx, axf->ctxsize);
}
}
static void
padlock_free_ctx(struct auth_hash *axf, void *ctx)
{
if ((via_feature_xcrypt & VIA_HAS_SHA) != 0 &&
(axf->type == CRYPTO_SHA1_HMAC ||
axf->type == CRYPTO_SHA2_256_HMAC)) {
padlock_sha_free(ctx);
}
}
static void
padlock_hash_key_setup(struct padlock_session *ses, caddr_t key, int klen)
{
struct auth_hash *axf;
int i;
klen /= 8;
axf = ses->ses_axf;
/*
* Try to free contexts before using them, because
* padlock_hash_key_setup() can be called twice - once from
* padlock_newsession() and again from padlock_process().
*/
padlock_free_ctx(axf, ses->ses_ictx);
padlock_free_ctx(axf, ses->ses_octx);
for (i = 0; i < klen; i++)
key[i] ^= HMAC_IPAD_VAL;
axf->Init(ses->ses_ictx);
axf->Update(ses->ses_ictx, key, klen);
axf->Update(ses->ses_ictx, hmac_ipad_buffer, axf->blocksize - klen);
for (i = 0; i < klen; i++)
key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
axf->Init(ses->ses_octx);
axf->Update(ses->ses_octx, key, klen);
axf->Update(ses->ses_octx, hmac_opad_buffer, axf->blocksize - klen);
for (i = 0; i < klen; i++)
key[i] ^= HMAC_OPAD_VAL;
}
/*
* Compute keyed-hash authenticator.
*/
static int
padlock_authcompute(struct padlock_session *ses, struct cryptodesc *crd,
caddr_t buf, int flags)
{
u_char hash[HASH_MAX_LEN];
struct auth_hash *axf;
union authctx ctx;
int error;
axf = ses->ses_axf;
padlock_copy_ctx(axf, ses->ses_ictx, &ctx);
error = crypto_apply(flags, buf, crd->crd_skip, crd->crd_len,
(int (*)(void *, void *, unsigned int))axf->Update, (caddr_t)&ctx);
if (error != 0) {
padlock_free_ctx(axf, &ctx);
return (error);
}
axf->Final(hash, &ctx);
padlock_copy_ctx(axf, ses->ses_octx, &ctx);
axf->Update(&ctx, hash, axf->hashsize);
axf->Final(hash, &ctx);
/* Inject the authentication data */
crypto_copyback(flags, buf, crd->crd_inject,
ses->ses_mlen == 0 ? axf->hashsize : ses->ses_mlen, hash);
return (0);
}
int
padlock_hash_setup(struct padlock_session *ses, struct cryptoini *macini)
{
ses->ses_mlen = macini->cri_mlen;
/* Find software structure which describes HMAC algorithm. */
switch (macini->cri_alg) {
case CRYPTO_NULL_HMAC:
ses->ses_axf = &auth_hash_null;
break;
case CRYPTO_MD5_HMAC:
ses->ses_axf = &auth_hash_hmac_md5;
break;
case CRYPTO_SHA1_HMAC:
if ((via_feature_xcrypt & VIA_HAS_SHA) != 0)
ses->ses_axf = &padlock_hmac_sha1;
else
ses->ses_axf = &auth_hash_hmac_sha1;
break;
case CRYPTO_RIPEMD160_HMAC:
ses->ses_axf = &auth_hash_hmac_ripemd_160;
break;
case CRYPTO_SHA2_256_HMAC:
if ((via_feature_xcrypt & VIA_HAS_SHA) != 0)
ses->ses_axf = &padlock_hmac_sha256;
else
ses->ses_axf = &auth_hash_hmac_sha2_256;
break;
case CRYPTO_SHA2_384_HMAC:
ses->ses_axf = &auth_hash_hmac_sha2_384;
break;
case CRYPTO_SHA2_512_HMAC:
ses->ses_axf = &auth_hash_hmac_sha2_512;
break;
}
/* Allocate memory for HMAC inner and outer contexts. */
ses->ses_ictx = malloc(ses->ses_axf->ctxsize, M_PADLOCK,
M_ZERO | M_NOWAIT);
ses->ses_octx = malloc(ses->ses_axf->ctxsize, M_PADLOCK,
M_ZERO | M_NOWAIT);
if (ses->ses_ictx == NULL || ses->ses_octx == NULL)
return (ENOMEM);
/* Setup key if given. */
if (macini->cri_key != NULL) {
padlock_hash_key_setup(ses, macini->cri_key,
macini->cri_klen);
}
return (0);
}
int
padlock_hash_process(struct padlock_session *ses, struct cryptodesc *maccrd,
struct cryptop *crp)
{
int error;
if ((maccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0)
padlock_hash_key_setup(ses, maccrd->crd_key, maccrd->crd_klen);
error = padlock_authcompute(ses, maccrd, crp->crp_buf, crp->crp_flags);
return (error);
}
void
padlock_hash_free(struct padlock_session *ses)
{
if (ses->ses_ictx != NULL) {
padlock_free_ctx(ses->ses_axf, ses->ses_ictx);
bzero(ses->ses_ictx, ses->ses_axf->ctxsize);
free(ses->ses_ictx, M_PADLOCK);
ses->ses_ictx = NULL;
}
if (ses->ses_octx != NULL) {
padlock_free_ctx(ses->ses_axf, ses->ses_octx);
bzero(ses->ses_octx, ses->ses_axf->ctxsize);
free(ses->ses_octx, M_PADLOCK);
ses->ses_octx = NULL;
}
}

2
sys/modules/padlock/Makefile
View File

@ -3,6 +3,6 @@
.PATH: ${.CURDIR}/../../crypto/via
KMOD= padlock
SRCS= padlock.c
SRCS= padlock.c padlock_cipher.c padlock_hash.c
.include <bsd.kmod.mk>