mirror of
https://github.com/freebsd/freebsd-src.git
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Implement support for HMAC/SHA1 and HMAC/SHA256 acceleration found in
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
parent
ff0c6b70eb
commit
5333bd4763
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=160582
@ -135,6 +135,8 @@ bf_enc.o optional crypto | ipsec ipsec_esp \
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no-implicit-rule
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crypto/des/arch/i386/des_enc.S optional crypto | ipsec ipsec_esp | netsmb
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crypto/via/padlock.c optional padlock
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crypto/via/padlock_cipher.c optional padlock
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crypto/via/padlock_hash.c optional padlock
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dev/advansys/adv_isa.c optional adv isa
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dev/aic/aic_isa.c optional aic isa
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dev/arcmsr/arcmsr.c optional arcmsr pci
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@ -1,6 +1,5 @@
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/*-
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* Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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* Copyright (c) 2004 Mark R V Murray
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* Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -25,25 +24,6 @@
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* SUCH DAMAGE.
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*/
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/* $OpenBSD: via.c,v 1.3 2004/06/15 23:36:55 deraadt Exp $ */
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/*-
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* Copyright (c) 2003 Jason Wright
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* Copyright (c) 2003, 2004 Theo de Raadt
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* All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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@ -63,66 +43,14 @@ __FBSDID("$FreeBSD$");
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#endif
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#include <opencrypto/cryptodev.h>
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#include <opencrypto/cryptosoft.h> /* for hmac_ipad_buffer and hmac_opad_buffer */
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#include <opencrypto/xform.h>
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#include <crypto/rijndael/rijndael.h>
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#include <crypto/via/padlock.h>
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#define PADLOCK_ROUND_COUNT_AES128 10
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#define PADLOCK_ROUND_COUNT_AES192 12
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#define PADLOCK_ROUND_COUNT_AES256 14
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#define PADLOCK_ALGORITHM_TYPE_AES 0
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#define PADLOCK_KEY_GENERATION_HW 0
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#define PADLOCK_KEY_GENERATION_SW 1
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#define PADLOCK_DIRECTION_ENCRYPT 0
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#define PADLOCK_DIRECTION_DECRYPT 1
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#define PADLOCK_KEY_SIZE_128 0
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#define PADLOCK_KEY_SIZE_192 1
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#define PADLOCK_KEY_SIZE_256 2
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union padlock_cw {
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uint64_t raw;
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struct {
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u_int round_count : 4;
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u_int algorithm_type : 3;
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u_int key_generation : 1;
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u_int intermediate : 1;
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u_int direction : 1;
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u_int key_size : 2;
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u_int filler0 : 20;
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u_int filler1 : 32;
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u_int filler2 : 32;
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u_int filler3 : 32;
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} __field;
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};
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#define cw_round_count __field.round_count
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#define cw_algorithm_type __field.algorithm_type
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#define cw_key_generation __field.key_generation
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#define cw_intermediate __field.intermediate
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#define cw_direction __field.direction
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#define cw_key_size __field.key_size
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#define cw_filler0 __field.filler0
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#define cw_filler1 __field.filler1
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#define cw_filler2 __field.filler2
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#define cw_filler3 __field.filler3
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struct padlock_session {
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union padlock_cw ses_cw __aligned(16);
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uint32_t ses_ekey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16); /* 128 bit aligned */
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uint32_t ses_dkey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16); /* 128 bit aligned */
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uint8_t ses_iv[16] __aligned(16); /* 128 bit aligned */
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struct auth_hash *ses_axf;
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uint8_t *ses_ictx;
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uint8_t *ses_octx;
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int ses_mlen;
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int ses_used;
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uint32_t ses_id;
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TAILQ_ENTRY(padlock_session) ses_next;
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};
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/*
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* Technical documentation about the PadLock engine can be found here:
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*
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* http://www.via.com.tw/en/downloads/whitepapers/initiatives/padlock/programming_guide.pdf
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*/
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struct padlock_softc {
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int32_t sc_cid;
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@ -139,47 +67,50 @@ static int padlock_freesession(void *arg __unused, uint64_t tid);
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static int padlock_process(void *arg __unused, struct cryptop *crp,
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int hint __unused);
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static __inline void
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padlock_cbc(void *in, void *out, size_t count, void *key, union padlock_cw *cw,
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void *iv)
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{
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#ifdef __GNUCLIKE_ASM
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/* The .byte line is really VIA C3 "xcrypt-cbc" instruction */
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__asm __volatile(
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"pushf \n\t"
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"popf \n\t"
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"rep \n\t"
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".byte 0x0f, 0xa7, 0xd0"
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: "+a" (iv), "+c" (count), "+D" (out), "+S" (in)
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: "b" (key), "d" (cw)
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: "cc", "memory"
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);
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#endif
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}
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MALLOC_DEFINE(M_PADLOCK, "padlock_data", "PadLock Data");
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static int
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padlock_init(void)
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{
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struct padlock_softc *sc;
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char capp[256];
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#if defined(__i386__) && !defined(PC98)
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/* If there is no AES support, we has nothing to do here. */
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if (!(via_feature_xcrypt & VIA_HAS_AES)) {
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printf("PADLOCK: No ACE support.\n");
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printf("PadLock: No ACE support.\n");
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return (EINVAL);
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} else
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printf("PADLOCK: HW support loaded.\n");
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}
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strlcpy(capp, "AES-CBC", sizeof(capp));
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#if 0
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strlcat(capp, ",AES-EBC", sizeof(capp));
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strlcat(capp, ",AES-CFB", sizeof(capp));
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strlcat(capp, ",AES-OFB", sizeof(capp));
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#endif
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if (via_feature_xcrypt & VIA_HAS_SHA) {
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strlcat(capp, ",SHA1", sizeof(capp));
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strlcat(capp, ",SHA256", sizeof(capp));
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}
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#if 0
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if (via_feature_xcrypt & VIA_HAS_AESCTR)
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strlcat(capp, ",AES-CTR", sizeof(capp));
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if (via_feature_xcrypt & VIA_HAS_MM)
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strlcat(capp, ",RSA", sizeof(capp));
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#endif
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printf("PadLock: HW support loaded for %s.\n", capp);
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#else
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return (EINVAL);
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#endif
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padlock_sc = sc = malloc(sizeof(*padlock_sc), M_DEVBUF,
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padlock_sc = sc = malloc(sizeof(*padlock_sc), M_PADLOCK,
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M_WAITOK | M_ZERO);
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TAILQ_INIT(&sc->sc_sessions);
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sc->sc_sid = 1;
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sc->sc_cid = crypto_get_driverid(0);
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if (sc->sc_cid < 0) {
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printf("PADLOCK: Could not get crypto driver id.\n");
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free(padlock_sc, M_DEVBUF);
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printf("PadLock: Could not get crypto driver id.\n");
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free(padlock_sc, M_PADLOCK);
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padlock_sc = NULL;
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return (ENOMEM);
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}
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@ -218,7 +149,7 @@ padlock_destroy(void)
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}
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if (active > 0) {
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mtx_unlock(&sc->sc_sessions_mtx);
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printf("PADLOCK: Cannot destroy, %u sessions active.\n",
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printf("PadLock: Cannot destroy, %u sessions active.\n",
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active);
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return (EBUSY);
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}
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@ -226,102 +157,21 @@ padlock_destroy(void)
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for (ses = TAILQ_FIRST(&sc->sc_sessions); ses != NULL;
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ses = TAILQ_FIRST(&sc->sc_sessions)) {
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TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next);
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free(ses, M_DEVBUF);
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free(ses, M_PADLOCK);
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}
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mtx_destroy(&sc->sc_sessions_mtx);
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crypto_unregister_all(sc->sc_cid);
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free(sc, M_DEVBUF);
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free(sc, M_PADLOCK);
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return (0);
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}
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static void
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padlock_setup_enckey(struct padlock_session *ses, caddr_t key, int klen)
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{
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union padlock_cw *cw;
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int i;
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cw = &ses->ses_cw;
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if (cw->cw_key_generation == PADLOCK_KEY_GENERATION_SW) {
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/* Build expanded keys for both directions */
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rijndaelKeySetupEnc(ses->ses_ekey, key, klen);
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rijndaelKeySetupDec(ses->ses_dkey, key, klen);
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for (i = 0; i < 4 * (RIJNDAEL_MAXNR + 1); i++) {
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ses->ses_ekey[i] = ntohl(ses->ses_ekey[i]);
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ses->ses_dkey[i] = ntohl(ses->ses_dkey[i]);
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}
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} else {
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bcopy(key, ses->ses_ekey, klen);
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bcopy(key, ses->ses_dkey, klen);
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}
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}
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static void
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padlock_setup_mackey(struct padlock_session *ses, caddr_t key, int klen)
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{
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struct auth_hash *axf;
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int i;
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klen /= 8;
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axf = ses->ses_axf;
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for (i = 0; i < klen; i++)
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key[i] ^= HMAC_IPAD_VAL;
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axf->Init(ses->ses_ictx);
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axf->Update(ses->ses_ictx, key, klen);
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axf->Update(ses->ses_ictx, hmac_ipad_buffer, axf->blocksize - klen);
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for (i = 0; i < klen; i++)
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key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
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axf->Init(ses->ses_octx);
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axf->Update(ses->ses_octx, key, klen);
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axf->Update(ses->ses_octx, hmac_opad_buffer, axf->blocksize - klen);
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for (i = 0; i < klen; i++)
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key[i] ^= HMAC_OPAD_VAL;
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}
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/*
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* Compute keyed-hash authenticator.
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*/
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static int
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padlock_authcompute(struct padlock_session *ses, struct cryptodesc *crd,
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caddr_t buf, int flags)
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{
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u_char hash[HASH_MAX_LEN];
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struct auth_hash *axf;
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union authctx ctx;
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int error;
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axf = ses->ses_axf;
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bcopy(ses->ses_ictx, &ctx, axf->ctxsize);
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error = crypto_apply(flags, buf, crd->crd_skip, crd->crd_len,
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(int (*)(void *, void *, unsigned int))axf->Update, (caddr_t)&ctx);
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if (error != 0)
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return (error);
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axf->Final(hash, &ctx);
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bcopy(ses->ses_octx, &ctx, axf->ctxsize);
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axf->Update(&ctx, hash, axf->hashsize);
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axf->Final(hash, &ctx);
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/* Inject the authentication data */
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crypto_copyback(flags, buf, crd->crd_inject,
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ses->ses_mlen == 0 ? axf->hashsize : ses->ses_mlen, hash);
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return (0);
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}
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static int
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padlock_newsession(void *arg __unused, uint32_t *sidp, struct cryptoini *cri)
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{
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struct padlock_softc *sc = padlock_sc;
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struct padlock_session *ses = NULL;
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struct cryptoini *encini, *macini;
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union padlock_cw *cw;
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int error;
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if (sc == NULL || sidp == NULL || cri == NULL)
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return (EINVAL);
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@ -357,10 +207,6 @@ padlock_newsession(void *arg __unused, uint32_t *sidp, struct cryptoini *cri)
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*/
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if (encini == NULL)
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return (EINVAL);
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if (encini->cri_klen != 128 && encini->cri_klen != 192 &&
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encini->cri_klen != 256) {
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return (EINVAL);
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}
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/*
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* Let's look for a free session structure.
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@ -380,7 +226,7 @@ padlock_newsession(void *arg __unused, uint32_t *sidp, struct cryptoini *cri)
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}
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mtx_unlock(&sc->sc_sessions_mtx);
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if (ses == NULL) {
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ses = malloc(sizeof(*ses), M_DEVBUF, M_NOWAIT | M_ZERO);
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ses = malloc(sizeof(*ses), M_PADLOCK, M_NOWAIT | M_ZERO);
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if (ses == NULL)
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return (ENOMEM);
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ses->ses_used = 1;
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@ -390,76 +236,17 @@ padlock_newsession(void *arg __unused, uint32_t *sidp, struct cryptoini *cri)
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mtx_unlock(&sc->sc_sessions_mtx);
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}
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cw = &ses->ses_cw;
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bzero(cw, sizeof(*cw));
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cw->cw_algorithm_type = PADLOCK_ALGORITHM_TYPE_AES;
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cw->cw_key_generation = PADLOCK_KEY_GENERATION_SW;
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cw->cw_intermediate = 0;
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switch (encini->cri_klen) {
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case 128:
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cw->cw_round_count = PADLOCK_ROUND_COUNT_AES128;
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cw->cw_key_size = PADLOCK_KEY_SIZE_128;
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#ifdef HW_KEY_GENERATION
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/* This doesn't buy us much, that's why it is commented out. */
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cw->cw_key_generation = PADLOCK_KEY_GENERATION_HW;
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#endif
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break;
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case 192:
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cw->cw_round_count = PADLOCK_ROUND_COUNT_AES192;
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cw->cw_key_size = PADLOCK_KEY_SIZE_192;
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break;
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case 256:
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cw->cw_round_count = PADLOCK_ROUND_COUNT_AES256;
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cw->cw_key_size = PADLOCK_KEY_SIZE_256;
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break;
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error = padlock_cipher_setup(ses, encini);
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if (error != 0) {
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padlock_freesession(NULL, ses->ses_id);
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return (error);
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}
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if (encini->cri_key != NULL)
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padlock_setup_enckey(ses, encini->cri_key, encini->cri_klen);
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arc4rand(ses->ses_iv, sizeof(ses->ses_iv), 0);
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if (macini != NULL) {
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ses->ses_mlen = macini->cri_mlen;
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/* Find software structure which describes HMAC algorithm. */
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switch (macini->cri_alg) {
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case CRYPTO_NULL_HMAC:
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ses->ses_axf = &auth_hash_null;
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break;
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case CRYPTO_MD5_HMAC:
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ses->ses_axf = &auth_hash_hmac_md5;
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break;
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case CRYPTO_SHA1_HMAC:
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ses->ses_axf = &auth_hash_hmac_sha1;
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break;
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case CRYPTO_RIPEMD160_HMAC:
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ses->ses_axf = &auth_hash_hmac_ripemd_160;
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break;
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case CRYPTO_SHA2_256_HMAC:
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ses->ses_axf = &auth_hash_hmac_sha2_256;
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break;
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case CRYPTO_SHA2_384_HMAC:
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ses->ses_axf = &auth_hash_hmac_sha2_384;
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break;
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case CRYPTO_SHA2_512_HMAC:
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ses->ses_axf = &auth_hash_hmac_sha2_512;
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break;
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}
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/* Allocate memory for HMAC inner and outer contexts. */
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ses->ses_ictx = malloc(ses->ses_axf->ctxsize, M_CRYPTO_DATA,
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M_NOWAIT);
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ses->ses_octx = malloc(ses->ses_axf->ctxsize, M_CRYPTO_DATA,
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M_NOWAIT);
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if (ses->ses_ictx == NULL || ses->ses_octx == NULL) {
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error = padlock_hash_setup(ses, macini);
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if (error != 0) {
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padlock_freesession(NULL, ses->ses_id);
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return (ENOMEM);
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}
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/* Setup key if given. */
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if (macini->cri_key != NULL) {
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padlock_setup_mackey(ses, macini->cri_key,
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macini->cri_klen);
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return (error);
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}
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}
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@ -486,16 +273,7 @@ padlock_freesession(void *arg __unused, uint64_t tid)
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return (EINVAL);
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}
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TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next);
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if (ses->ses_ictx != NULL) {
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bzero(ses->ses_ictx, ses->ses_axf->ctxsize);
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free(ses->ses_ictx, M_CRYPTO_DATA);
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ses->ses_ictx = NULL;
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}
|
||||
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
87
sys/crypto/via/padlock.h
Normal 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
226
sys/crypto/via/padlock_cipher.c
Normal 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
389
sys/crypto/via/padlock_hash.c
Normal 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;
|
||||
}
|
||||
}
|
||||
@ -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>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user