1ef0a6e20SPawel Jakub Dawidek /*- 25333bd47SPawel Jakub Dawidek * Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3ef0a6e20SPawel Jakub Dawidek * All rights reserved. 4ef0a6e20SPawel Jakub Dawidek * 5ef0a6e20SPawel Jakub Dawidek * Redistribution and use in source and binary forms, with or without 6ef0a6e20SPawel Jakub Dawidek * modification, are permitted provided that the following conditions 7ef0a6e20SPawel Jakub Dawidek * are met: 8ef0a6e20SPawel Jakub Dawidek * 1. Redistributions of source code must retain the above copyright 9ef0a6e20SPawel Jakub Dawidek * notice, this list of conditions and the following disclaimer. 10ef0a6e20SPawel Jakub Dawidek * 2. Redistributions in binary form must reproduce the above copyright 11ef0a6e20SPawel Jakub Dawidek * notice, this list of conditions and the following disclaimer in the 12ef0a6e20SPawel Jakub Dawidek * documentation and/or other materials provided with the distribution. 13ef0a6e20SPawel Jakub Dawidek * 14ef0a6e20SPawel Jakub Dawidek * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15ef0a6e20SPawel Jakub Dawidek * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16ef0a6e20SPawel Jakub Dawidek * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17ef0a6e20SPawel Jakub Dawidek * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18ef0a6e20SPawel Jakub Dawidek * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19ef0a6e20SPawel Jakub Dawidek * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20ef0a6e20SPawel Jakub Dawidek * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21ef0a6e20SPawel Jakub Dawidek * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22ef0a6e20SPawel Jakub Dawidek * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23ef0a6e20SPawel Jakub Dawidek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24ef0a6e20SPawel Jakub Dawidek * SUCH DAMAGE. 25ef0a6e20SPawel Jakub Dawidek */ 26ef0a6e20SPawel Jakub Dawidek 27ef0a6e20SPawel Jakub Dawidek #include <sys/cdefs.h> 28ef0a6e20SPawel Jakub Dawidek __FBSDID("$FreeBSD$"); 29ef0a6e20SPawel Jakub Dawidek 30ef0a6e20SPawel Jakub Dawidek #include <sys/param.h> 31ef0a6e20SPawel Jakub Dawidek #include <sys/systm.h> 32ef0a6e20SPawel Jakub Dawidek #include <sys/kernel.h> 33ef0a6e20SPawel Jakub Dawidek #include <sys/module.h> 34ef0a6e20SPawel Jakub Dawidek #include <sys/lock.h> 3548aadb63SPawel Jakub Dawidek #include <sys/rwlock.h> 36ef0a6e20SPawel Jakub Dawidek #include <sys/malloc.h> 37ef0a6e20SPawel Jakub Dawidek #include <sys/libkern.h> 38ef0a6e20SPawel Jakub Dawidek #if defined(__i386__) && !defined(PC98) 39ef0a6e20SPawel Jakub Dawidek #include <machine/cpufunc.h> 40ef0a6e20SPawel Jakub Dawidek #include <machine/cputypes.h> 414fd58e10SMichael Reifenberger #include <machine/md_var.h> 424fd58e10SMichael Reifenberger #include <machine/specialreg.h> 43ef0a6e20SPawel Jakub Dawidek #endif 44ef0a6e20SPawel Jakub Dawidek 45ef0a6e20SPawel Jakub Dawidek #include <opencrypto/cryptodev.h> 46ef0a6e20SPawel Jakub Dawidek 475333bd47SPawel Jakub Dawidek #include <crypto/via/padlock.h> 48ef0a6e20SPawel Jakub Dawidek 496810ad6fSSam Leffler #include <sys/kobj.h> 506810ad6fSSam Leffler #include <sys/bus.h> 516810ad6fSSam Leffler #include "cryptodev_if.h" 526810ad6fSSam Leffler 535333bd47SPawel Jakub Dawidek /* 545333bd47SPawel Jakub Dawidek * Technical documentation about the PadLock engine can be found here: 555333bd47SPawel Jakub Dawidek * 565333bd47SPawel Jakub Dawidek * http://www.via.com.tw/en/downloads/whitepapers/initiatives/padlock/programming_guide.pdf 575333bd47SPawel Jakub Dawidek */ 58ef0a6e20SPawel Jakub Dawidek 59ef0a6e20SPawel Jakub Dawidek struct padlock_softc { 60ef0a6e20SPawel Jakub Dawidek int32_t sc_cid; 61ef0a6e20SPawel Jakub Dawidek uint32_t sc_sid; 62ef0a6e20SPawel Jakub Dawidek TAILQ_HEAD(, padlock_session) sc_sessions; 6348aadb63SPawel Jakub Dawidek struct rwlock sc_sessions_lock; 64ef0a6e20SPawel Jakub Dawidek }; 65ef0a6e20SPawel Jakub Dawidek 666810ad6fSSam Leffler static int padlock_newsession(device_t, uint32_t *sidp, struct cryptoini *cri); 676810ad6fSSam Leffler static int padlock_freesession(device_t, uint64_t tid); 686810ad6fSSam Leffler static int padlock_process(device_t, struct cryptop *crp, int hint __unused); 69ef0a6e20SPawel Jakub Dawidek 705333bd47SPawel Jakub Dawidek MALLOC_DEFINE(M_PADLOCK, "padlock_data", "PadLock Data"); 71ef0a6e20SPawel Jakub Dawidek 726810ad6fSSam Leffler static void 736810ad6fSSam Leffler padlock_identify(device_t *dev, device_t parent) 74ef0a6e20SPawel Jakub Dawidek { 756810ad6fSSam Leffler /* NB: order 10 is so we get attached after h/w devices */ 766810ad6fSSam Leffler if (device_find_child(parent, "padlock", -1) == NULL && 776810ad6fSSam Leffler BUS_ADD_CHILD(parent, 10, "padlock", -1) == 0) 786810ad6fSSam Leffler panic("padlock: could not attach"); 796810ad6fSSam Leffler } 806810ad6fSSam Leffler 816810ad6fSSam Leffler static int 826810ad6fSSam Leffler padlock_probe(device_t dev) 836810ad6fSSam Leffler { 845333bd47SPawel Jakub Dawidek char capp[256]; 855333bd47SPawel Jakub Dawidek 86ef0a6e20SPawel Jakub Dawidek #if defined(__i386__) && !defined(PC98) 875333bd47SPawel Jakub Dawidek /* If there is no AES support, we has nothing to do here. */ 884fd58e10SMichael Reifenberger if (!(via_feature_xcrypt & VIA_HAS_AES)) { 896810ad6fSSam Leffler device_printf(dev, "No ACE support.\n"); 90ef0a6e20SPawel Jakub Dawidek return (EINVAL); 915333bd47SPawel Jakub Dawidek } 925333bd47SPawel Jakub Dawidek strlcpy(capp, "AES-CBC", sizeof(capp)); 935333bd47SPawel Jakub Dawidek #if 0 945333bd47SPawel Jakub Dawidek strlcat(capp, ",AES-EBC", sizeof(capp)); 955333bd47SPawel Jakub Dawidek strlcat(capp, ",AES-CFB", sizeof(capp)); 965333bd47SPawel Jakub Dawidek strlcat(capp, ",AES-OFB", sizeof(capp)); 975333bd47SPawel Jakub Dawidek #endif 985333bd47SPawel Jakub Dawidek if (via_feature_xcrypt & VIA_HAS_SHA) { 995333bd47SPawel Jakub Dawidek strlcat(capp, ",SHA1", sizeof(capp)); 1005333bd47SPawel Jakub Dawidek strlcat(capp, ",SHA256", sizeof(capp)); 1015333bd47SPawel Jakub Dawidek } 1025333bd47SPawel Jakub Dawidek #if 0 1035333bd47SPawel Jakub Dawidek if (via_feature_xcrypt & VIA_HAS_AESCTR) 1045333bd47SPawel Jakub Dawidek strlcat(capp, ",AES-CTR", sizeof(capp)); 1055333bd47SPawel Jakub Dawidek if (via_feature_xcrypt & VIA_HAS_MM) 1065333bd47SPawel Jakub Dawidek strlcat(capp, ",RSA", sizeof(capp)); 1075333bd47SPawel Jakub Dawidek #endif 1086810ad6fSSam Leffler device_set_desc_copy(dev, capp); 1096810ad6fSSam Leffler return (0); 110ef0a6e20SPawel Jakub Dawidek #else 111ef0a6e20SPawel Jakub Dawidek return (EINVAL); 112ef0a6e20SPawel Jakub Dawidek #endif 1136810ad6fSSam Leffler } 114ef0a6e20SPawel Jakub Dawidek 1156810ad6fSSam Leffler static int 1166810ad6fSSam Leffler padlock_attach(device_t dev) 1176810ad6fSSam Leffler { 1186810ad6fSSam Leffler struct padlock_softc *sc = device_get_softc(dev); 1196810ad6fSSam Leffler 120ef0a6e20SPawel Jakub Dawidek TAILQ_INIT(&sc->sc_sessions); 121ef0a6e20SPawel Jakub Dawidek sc->sc_sid = 1; 122ef0a6e20SPawel Jakub Dawidek 1236810ad6fSSam Leffler sc->sc_cid = crypto_get_driverid(dev, CRYPTOCAP_F_HARDWARE); 124ef0a6e20SPawel Jakub Dawidek if (sc->sc_cid < 0) { 1256810ad6fSSam Leffler device_printf(dev, "Could not get crypto driver id.\n"); 126ef0a6e20SPawel Jakub Dawidek return (ENOMEM); 127ef0a6e20SPawel Jakub Dawidek } 128ef0a6e20SPawel Jakub Dawidek 12948aadb63SPawel Jakub Dawidek rw_init(&sc->sc_sessions_lock, "padlock_lock"); 1306810ad6fSSam Leffler crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0); 1316810ad6fSSam Leffler crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0); 1326810ad6fSSam Leffler crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0); 1336810ad6fSSam Leffler crypto_register(sc->sc_cid, CRYPTO_RIPEMD160_HMAC, 0, 0); 1346810ad6fSSam Leffler crypto_register(sc->sc_cid, CRYPTO_SHA2_256_HMAC, 0, 0); 1356810ad6fSSam Leffler crypto_register(sc->sc_cid, CRYPTO_SHA2_384_HMAC, 0, 0); 1366810ad6fSSam Leffler crypto_register(sc->sc_cid, CRYPTO_SHA2_512_HMAC, 0, 0); 137ef0a6e20SPawel Jakub Dawidek return (0); 138ef0a6e20SPawel Jakub Dawidek } 139ef0a6e20SPawel Jakub Dawidek 140ef0a6e20SPawel Jakub Dawidek static int 1416810ad6fSSam Leffler padlock_detach(device_t dev) 142ef0a6e20SPawel Jakub Dawidek { 1436810ad6fSSam Leffler struct padlock_softc *sc = device_get_softc(dev); 144ef0a6e20SPawel Jakub Dawidek struct padlock_session *ses; 145ef0a6e20SPawel Jakub Dawidek 14648aadb63SPawel Jakub Dawidek rw_wlock(&sc->sc_sessions_lock); 147ef0a6e20SPawel Jakub Dawidek TAILQ_FOREACH(ses, &sc->sc_sessions, ses_next) { 1486810ad6fSSam Leffler if (ses->ses_used) { 14948aadb63SPawel Jakub Dawidek rw_wunlock(&sc->sc_sessions_lock); 1506810ad6fSSam Leffler device_printf(dev, 1516810ad6fSSam Leffler "Cannot detach, sessions still active.\n"); 152ef0a6e20SPawel Jakub Dawidek return (EBUSY); 153ef0a6e20SPawel Jakub Dawidek } 1546810ad6fSSam Leffler } 155ef0a6e20SPawel Jakub Dawidek for (ses = TAILQ_FIRST(&sc->sc_sessions); ses != NULL; 156ef0a6e20SPawel Jakub Dawidek ses = TAILQ_FIRST(&sc->sc_sessions)) { 157ef0a6e20SPawel Jakub Dawidek TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next); 1585333bd47SPawel Jakub Dawidek free(ses, M_PADLOCK); 159ef0a6e20SPawel Jakub Dawidek } 16048aadb63SPawel Jakub Dawidek rw_destroy(&sc->sc_sessions_lock); 161ef0a6e20SPawel Jakub Dawidek crypto_unregister_all(sc->sc_cid); 162ef0a6e20SPawel Jakub Dawidek return (0); 163ef0a6e20SPawel Jakub Dawidek } 164ef0a6e20SPawel Jakub Dawidek 165ef0a6e20SPawel Jakub Dawidek static int 1666810ad6fSSam Leffler padlock_newsession(device_t dev, uint32_t *sidp, struct cryptoini *cri) 167ef0a6e20SPawel Jakub Dawidek { 1686810ad6fSSam Leffler struct padlock_softc *sc = device_get_softc(dev); 169ef0a6e20SPawel Jakub Dawidek struct padlock_session *ses = NULL; 17064e18040SPawel Jakub Dawidek struct cryptoini *encini, *macini; 1715333bd47SPawel Jakub Dawidek int error; 172ef0a6e20SPawel Jakub Dawidek 1736810ad6fSSam Leffler if (sidp == NULL || cri == NULL) 17464e18040SPawel Jakub Dawidek return (EINVAL); 17564e18040SPawel Jakub Dawidek 17664e18040SPawel Jakub Dawidek encini = macini = NULL; 17764e18040SPawel Jakub Dawidek for (; cri != NULL; cri = cri->cri_next) { 17864e18040SPawel Jakub Dawidek switch (cri->cri_alg) { 17964e18040SPawel Jakub Dawidek case CRYPTO_NULL_HMAC: 18064e18040SPawel Jakub Dawidek case CRYPTO_MD5_HMAC: 18164e18040SPawel Jakub Dawidek case CRYPTO_SHA1_HMAC: 18264e18040SPawel Jakub Dawidek case CRYPTO_RIPEMD160_HMAC: 18364e18040SPawel Jakub Dawidek case CRYPTO_SHA2_256_HMAC: 18464e18040SPawel Jakub Dawidek case CRYPTO_SHA2_384_HMAC: 18564e18040SPawel Jakub Dawidek case CRYPTO_SHA2_512_HMAC: 18664e18040SPawel Jakub Dawidek if (macini != NULL) 18764e18040SPawel Jakub Dawidek return (EINVAL); 18864e18040SPawel Jakub Dawidek macini = cri; 18964e18040SPawel Jakub Dawidek break; 19064e18040SPawel Jakub Dawidek case CRYPTO_AES_CBC: 19164e18040SPawel Jakub Dawidek if (encini != NULL) 19264e18040SPawel Jakub Dawidek return (EINVAL); 19364e18040SPawel Jakub Dawidek encini = cri; 19464e18040SPawel Jakub Dawidek break; 19564e18040SPawel Jakub Dawidek default: 196ef0a6e20SPawel Jakub Dawidek return (EINVAL); 197ef0a6e20SPawel Jakub Dawidek } 19864e18040SPawel Jakub Dawidek } 19964e18040SPawel Jakub Dawidek 20064e18040SPawel Jakub Dawidek /* 20164e18040SPawel Jakub Dawidek * We only support HMAC algorithms to be able to work with 202b2630c29SGeorge V. Neville-Neil * ipsec(4), so if we are asked only for authentication without 20364e18040SPawel Jakub Dawidek * encryption, don't pretend we can accellerate it. 20464e18040SPawel Jakub Dawidek */ 20564e18040SPawel Jakub Dawidek if (encini == NULL) 20664e18040SPawel Jakub Dawidek return (EINVAL); 207ef0a6e20SPawel Jakub Dawidek 208ef0a6e20SPawel Jakub Dawidek /* 209ef0a6e20SPawel Jakub Dawidek * Let's look for a free session structure. 210ef0a6e20SPawel Jakub Dawidek */ 21148aadb63SPawel Jakub Dawidek rw_wlock(&sc->sc_sessions_lock); 212ef0a6e20SPawel Jakub Dawidek /* 213ef0a6e20SPawel Jakub Dawidek * Free sessions goes first, so if first session is used, we need to 214ef0a6e20SPawel Jakub Dawidek * allocate one. 215ef0a6e20SPawel Jakub Dawidek */ 216ef0a6e20SPawel Jakub Dawidek ses = TAILQ_FIRST(&sc->sc_sessions); 217ef0a6e20SPawel Jakub Dawidek if (ses == NULL || ses->ses_used) 218ef0a6e20SPawel Jakub Dawidek ses = NULL; 219ef0a6e20SPawel Jakub Dawidek else { 220ef0a6e20SPawel Jakub Dawidek TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next); 221ef0a6e20SPawel Jakub Dawidek ses->ses_used = 1; 222ef0a6e20SPawel Jakub Dawidek TAILQ_INSERT_TAIL(&sc->sc_sessions, ses, ses_next); 223ef0a6e20SPawel Jakub Dawidek } 22448aadb63SPawel Jakub Dawidek rw_wunlock(&sc->sc_sessions_lock); 225ef0a6e20SPawel Jakub Dawidek if (ses == NULL) { 2265333bd47SPawel Jakub Dawidek ses = malloc(sizeof(*ses), M_PADLOCK, M_NOWAIT | M_ZERO); 227ef0a6e20SPawel Jakub Dawidek if (ses == NULL) 228ef0a6e20SPawel Jakub Dawidek return (ENOMEM); 229ef0a6e20SPawel Jakub Dawidek ses->ses_used = 1; 23048aadb63SPawel Jakub Dawidek rw_wlock(&sc->sc_sessions_lock); 231ef0a6e20SPawel Jakub Dawidek ses->ses_id = sc->sc_sid++; 232ef0a6e20SPawel Jakub Dawidek TAILQ_INSERT_TAIL(&sc->sc_sessions, ses, ses_next); 23348aadb63SPawel Jakub Dawidek rw_wunlock(&sc->sc_sessions_lock); 234ef0a6e20SPawel Jakub Dawidek } 235ef0a6e20SPawel Jakub Dawidek 2365333bd47SPawel Jakub Dawidek error = padlock_cipher_setup(ses, encini); 2375333bd47SPawel Jakub Dawidek if (error != 0) { 2385333bd47SPawel Jakub Dawidek padlock_freesession(NULL, ses->ses_id); 2395333bd47SPawel Jakub Dawidek return (error); 240ef0a6e20SPawel Jakub Dawidek } 241ef0a6e20SPawel Jakub Dawidek 24264e18040SPawel Jakub Dawidek if (macini != NULL) { 2435333bd47SPawel Jakub Dawidek error = padlock_hash_setup(ses, macini); 2445333bd47SPawel Jakub Dawidek if (error != 0) { 24564e18040SPawel Jakub Dawidek padlock_freesession(NULL, ses->ses_id); 2465333bd47SPawel Jakub Dawidek return (error); 24764e18040SPawel Jakub Dawidek } 248ef0a6e20SPawel Jakub Dawidek } 249ef0a6e20SPawel Jakub Dawidek 250ef0a6e20SPawel Jakub Dawidek *sidp = ses->ses_id; 251ef0a6e20SPawel Jakub Dawidek return (0); 252ef0a6e20SPawel Jakub Dawidek } 253ef0a6e20SPawel Jakub Dawidek 254ef0a6e20SPawel Jakub Dawidek static int 2556810ad6fSSam Leffler padlock_freesession(device_t dev, uint64_t tid) 256ef0a6e20SPawel Jakub Dawidek { 2576810ad6fSSam Leffler struct padlock_softc *sc = device_get_softc(dev); 258ef0a6e20SPawel Jakub Dawidek struct padlock_session *ses; 259ef0a6e20SPawel Jakub Dawidek uint32_t sid = ((uint32_t)tid) & 0xffffffff; 260ef0a6e20SPawel Jakub Dawidek 26148aadb63SPawel Jakub Dawidek rw_wlock(&sc->sc_sessions_lock); 262ef0a6e20SPawel Jakub Dawidek TAILQ_FOREACH(ses, &sc->sc_sessions, ses_next) { 263ef0a6e20SPawel Jakub Dawidek if (ses->ses_id == sid) 264ef0a6e20SPawel Jakub Dawidek break; 265ef0a6e20SPawel Jakub Dawidek } 266ef0a6e20SPawel Jakub Dawidek if (ses == NULL) { 26748aadb63SPawel Jakub Dawidek rw_wunlock(&sc->sc_sessions_lock); 268ef0a6e20SPawel Jakub Dawidek return (EINVAL); 269ef0a6e20SPawel Jakub Dawidek } 270ef0a6e20SPawel Jakub Dawidek TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next); 2715333bd47SPawel Jakub Dawidek padlock_hash_free(ses); 2729f5dc739SPawel Jakub Dawidek bzero(ses, sizeof(*ses)); 273ef0a6e20SPawel Jakub Dawidek ses->ses_used = 0; 27448aadb63SPawel Jakub Dawidek TAILQ_INSERT_HEAD(&sc->sc_sessions, ses, ses_next); 27548aadb63SPawel Jakub Dawidek rw_wunlock(&sc->sc_sessions_lock); 276ef0a6e20SPawel Jakub Dawidek return (0); 277ef0a6e20SPawel Jakub Dawidek } 278ef0a6e20SPawel Jakub Dawidek 279ef0a6e20SPawel Jakub Dawidek static int 2806810ad6fSSam Leffler padlock_process(device_t dev, struct cryptop *crp, int hint __unused) 281ef0a6e20SPawel Jakub Dawidek { 2826810ad6fSSam Leffler struct padlock_softc *sc = device_get_softc(dev); 2835333bd47SPawel Jakub Dawidek struct padlock_session *ses = NULL; 28464e18040SPawel Jakub Dawidek struct cryptodesc *crd, *enccrd, *maccrd; 28564e18040SPawel Jakub Dawidek int error = 0; 286ef0a6e20SPawel Jakub Dawidek 287bb348210SPawel Jakub Dawidek enccrd = maccrd = NULL; 288bb348210SPawel Jakub Dawidek 28964e18040SPawel Jakub Dawidek if (crp == NULL || crp->crp_callback == NULL || crp->crp_desc == NULL) { 29064e18040SPawel Jakub Dawidek error = EINVAL; 291ef0a6e20SPawel Jakub Dawidek goto out; 292ef0a6e20SPawel Jakub Dawidek } 29364e18040SPawel Jakub Dawidek 29464e18040SPawel Jakub Dawidek for (crd = crp->crp_desc; crd != NULL; crd = crd->crd_next) { 29564e18040SPawel Jakub Dawidek switch (crd->crd_alg) { 29664e18040SPawel Jakub Dawidek case CRYPTO_NULL_HMAC: 29764e18040SPawel Jakub Dawidek case CRYPTO_MD5_HMAC: 29864e18040SPawel Jakub Dawidek case CRYPTO_SHA1_HMAC: 29964e18040SPawel Jakub Dawidek case CRYPTO_RIPEMD160_HMAC: 30064e18040SPawel Jakub Dawidek case CRYPTO_SHA2_256_HMAC: 30164e18040SPawel Jakub Dawidek case CRYPTO_SHA2_384_HMAC: 30264e18040SPawel Jakub Dawidek case CRYPTO_SHA2_512_HMAC: 30364e18040SPawel Jakub Dawidek if (maccrd != NULL) { 30464e18040SPawel Jakub Dawidek error = EINVAL; 305ef0a6e20SPawel Jakub Dawidek goto out; 306ef0a6e20SPawel Jakub Dawidek } 30764e18040SPawel Jakub Dawidek maccrd = crd; 30864e18040SPawel Jakub Dawidek break; 30964e18040SPawel Jakub Dawidek case CRYPTO_AES_CBC: 31064e18040SPawel Jakub Dawidek if (enccrd != NULL) { 31164e18040SPawel Jakub Dawidek error = EINVAL; 31264e18040SPawel Jakub Dawidek goto out; 31364e18040SPawel Jakub Dawidek } 31464e18040SPawel Jakub Dawidek enccrd = crd; 31564e18040SPawel Jakub Dawidek break; 31664e18040SPawel Jakub Dawidek default: 31764e18040SPawel Jakub Dawidek return (EINVAL); 31864e18040SPawel Jakub Dawidek } 31964e18040SPawel Jakub Dawidek } 32064e18040SPawel Jakub Dawidek if (enccrd == NULL || (enccrd->crd_len % AES_BLOCK_LEN) != 0) { 32164e18040SPawel Jakub Dawidek error = EINVAL; 322eb340a61SPawel Jakub Dawidek goto out; 323eb340a61SPawel Jakub Dawidek } 324ef0a6e20SPawel Jakub Dawidek 32548aadb63SPawel Jakub Dawidek rw_rlock(&sc->sc_sessions_lock); 326ef0a6e20SPawel Jakub Dawidek TAILQ_FOREACH(ses, &sc->sc_sessions, ses_next) { 327ef0a6e20SPawel Jakub Dawidek if (ses->ses_id == (crp->crp_sid & 0xffffffff)) 328ef0a6e20SPawel Jakub Dawidek break; 329ef0a6e20SPawel Jakub Dawidek } 33048aadb63SPawel Jakub Dawidek rw_runlock(&sc->sc_sessions_lock); 331ef0a6e20SPawel Jakub Dawidek if (ses == NULL) { 33264e18040SPawel Jakub Dawidek error = EINVAL; 333ef0a6e20SPawel Jakub Dawidek goto out; 334ef0a6e20SPawel Jakub Dawidek } 335ef0a6e20SPawel Jakub Dawidek 33664e18040SPawel Jakub Dawidek /* Perform data authentication if requested before encryption. */ 33764e18040SPawel Jakub Dawidek if (maccrd != NULL && maccrd->crd_next == enccrd) { 3385333bd47SPawel Jakub Dawidek error = padlock_hash_process(ses, maccrd, crp); 33964e18040SPawel Jakub Dawidek if (error != 0) 34064e18040SPawel Jakub Dawidek goto out; 341ef0a6e20SPawel Jakub Dawidek } 342ef0a6e20SPawel Jakub Dawidek 3435333bd47SPawel Jakub Dawidek error = padlock_cipher_process(ses, enccrd, crp); 3445333bd47SPawel Jakub Dawidek if (error != 0) 3455333bd47SPawel Jakub Dawidek goto out; 34664e18040SPawel Jakub Dawidek 34764e18040SPawel Jakub Dawidek /* Perform data authentication if requested after encryption. */ 34864e18040SPawel Jakub Dawidek if (maccrd != NULL && enccrd->crd_next == maccrd) { 3495333bd47SPawel Jakub Dawidek error = padlock_hash_process(ses, maccrd, crp); 35064e18040SPawel Jakub Dawidek if (error != 0) 35164e18040SPawel Jakub Dawidek goto out; 352ef0a6e20SPawel Jakub Dawidek } 353ef0a6e20SPawel Jakub Dawidek 354ef0a6e20SPawel Jakub Dawidek out: 3555333bd47SPawel Jakub Dawidek #if 0 3565333bd47SPawel Jakub Dawidek /* 3575333bd47SPawel Jakub Dawidek * This code is not necessary, because contexts will be freed on next 3585333bd47SPawel Jakub Dawidek * padlock_setup_mackey() call or at padlock_freesession() call. 3595333bd47SPawel Jakub Dawidek */ 3605333bd47SPawel Jakub Dawidek if (ses != NULL && maccrd != NULL && 3615333bd47SPawel Jakub Dawidek (maccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0) { 3625333bd47SPawel Jakub Dawidek padlock_free_ctx(ses->ses_axf, ses->ses_ictx); 3635333bd47SPawel Jakub Dawidek padlock_free_ctx(ses->ses_axf, ses->ses_octx); 364ef0a6e20SPawel Jakub Dawidek } 3655333bd47SPawel Jakub Dawidek #endif 36664e18040SPawel Jakub Dawidek crp->crp_etype = error; 367ef0a6e20SPawel Jakub Dawidek crypto_done(crp); 36864e18040SPawel Jakub Dawidek return (error); 369ef0a6e20SPawel Jakub Dawidek } 370ef0a6e20SPawel Jakub Dawidek 3716810ad6fSSam Leffler static device_method_t padlock_methods[] = { 3726810ad6fSSam Leffler DEVMETHOD(device_identify, padlock_identify), 3736810ad6fSSam Leffler DEVMETHOD(device_probe, padlock_probe), 3746810ad6fSSam Leffler DEVMETHOD(device_attach, padlock_attach), 3756810ad6fSSam Leffler DEVMETHOD(device_detach, padlock_detach), 376ef0a6e20SPawel Jakub Dawidek 3776810ad6fSSam Leffler DEVMETHOD(cryptodev_newsession, padlock_newsession), 3786810ad6fSSam Leffler DEVMETHOD(cryptodev_freesession,padlock_freesession), 3796810ad6fSSam Leffler DEVMETHOD(cryptodev_process, padlock_process), 380ef0a6e20SPawel Jakub Dawidek 3816810ad6fSSam Leffler {0, 0}, 382ef0a6e20SPawel Jakub Dawidek }; 3836810ad6fSSam Leffler 3846810ad6fSSam Leffler static driver_t padlock_driver = { 3856810ad6fSSam Leffler "padlock", 3866810ad6fSSam Leffler padlock_methods, 3876810ad6fSSam Leffler sizeof(struct padlock_softc), 3886810ad6fSSam Leffler }; 3896810ad6fSSam Leffler static devclass_t padlock_devclass; 3906810ad6fSSam Leffler 3916810ad6fSSam Leffler /* XXX where to attach */ 3926810ad6fSSam Leffler DRIVER_MODULE(padlock, nexus, padlock_driver, padlock_devclass, 0, 0); 393ef0a6e20SPawel Jakub Dawidek MODULE_VERSION(padlock, 1); 394ef0a6e20SPawel Jakub Dawidek MODULE_DEPEND(padlock, crypto, 1, 1, 1); 395