Index: head/sys/crypto/aesni/aesni.c =================================================================== --- head/sys/crypto/aesni/aesni.c (revision 285288) +++ head/sys/crypto/aesni/aesni.c (revision 285289) @@ -1,590 +1,667 @@ /*- * Copyright (c) 2005-2008 Pawel Jakub Dawidek * Copyright (c) 2010 Konstantin Belousov * Copyright (c) 2014 The FreeBSD Foundation * All rights reserved. * * Portions of this software were developed by John-Mark Gurney * under sponsorship of the FreeBSD Foundation and * Rubicon Communications, LLC (Netgate). * * 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 __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include +#include #include #include #include +static struct mtx_padalign *ctx_mtx; +static struct fpu_kern_ctx **ctx_fpu; + struct aesni_softc { + int dieing; int32_t cid; uint32_t sid; TAILQ_HEAD(aesni_sessions_head, aesni_session) sessions; struct rwlock lock; }; +#define AQUIRE_CTX(i, ctx) \ + do { \ + (i) = PCPU_GET(cpuid); \ + mtx_lock(&ctx_mtx[(i)]); \ + (ctx) = ctx_fpu[(i)]; \ + } while (0) +#define RELEASE_CTX(i, ctx) \ + do { \ + mtx_unlock(&ctx_mtx[(i)]); \ + (i) = -1; \ + (ctx) = NULL; \ + } while (0) + static int aesni_newsession(device_t, uint32_t *sidp, struct cryptoini *cri); static int aesni_freesession(device_t, uint64_t tid); static void aesni_freesession_locked(struct aesni_softc *sc, struct aesni_session *ses); static int aesni_cipher_setup(struct aesni_session *ses, struct cryptoini *encini); static int aesni_cipher_process(struct aesni_session *ses, struct cryptodesc *enccrd, struct cryptodesc *authcrd, struct cryptop *crp); MALLOC_DEFINE(M_AESNI, "aesni_data", "AESNI Data"); static void aesni_identify(driver_t *drv, device_t parent) { /* NB: order 10 is so we get attached after h/w devices */ if (device_find_child(parent, "aesni", -1) == NULL && BUS_ADD_CHILD(parent, 10, "aesni", -1) == 0) panic("aesni: could not attach"); } static int aesni_probe(device_t dev) { if ((cpu_feature2 & CPUID2_AESNI) == 0) { device_printf(dev, "No AESNI support.\n"); return (EINVAL); } if ((cpu_feature2 & CPUID2_SSE41) == 0) { device_printf(dev, "No SSE4.1 support.\n"); return (EINVAL); } device_set_desc_copy(dev, "AES-CBC,AES-XTS,AES-GCM,AES-ICM"); return (0); } +static void +aensi_cleanctx(void) +{ + int i; + + /* XXX - no way to return driverid */ + CPU_FOREACH(i) { + if (ctx_fpu[i] != NULL) { + mtx_destroy(&ctx_mtx[i]); + fpu_kern_free_ctx(ctx_fpu[i]); + } + ctx_fpu[i] = NULL; + } + free(ctx_mtx, M_AESNI); + ctx_mtx = NULL; + free(ctx_fpu, M_AESNI); + ctx_fpu = NULL; +} + static int aesni_attach(device_t dev) { struct aesni_softc *sc; + int i; sc = device_get_softc(dev); + sc->dieing = 0; TAILQ_INIT(&sc->sessions); sc->sid = 1; + sc->cid = crypto_get_driverid(dev, CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SYNC); if (sc->cid < 0) { device_printf(dev, "Could not get crypto driver id.\n"); return (ENOMEM); } + ctx_mtx = malloc(sizeof *ctx_mtx * (mp_maxid + 1), M_AESNI, + M_WAITOK|M_ZERO); + ctx_fpu = malloc(sizeof *ctx_fpu * (mp_maxid + 1), M_AESNI, + M_WAITOK|M_ZERO); + + CPU_FOREACH(i) { + ctx_fpu[i] = fpu_kern_alloc_ctx(0); + mtx_init(&ctx_mtx[i], "anifpumtx", NULL, MTX_DEF|MTX_NEW); + } + rw_init(&sc->lock, "aesni_lock"); crypto_register(sc->cid, CRYPTO_AES_CBC, 0, 0); crypto_register(sc->cid, CRYPTO_AES_ICM, 0, 0); crypto_register(sc->cid, CRYPTO_AES_NIST_GCM_16, 0, 0); crypto_register(sc->cid, CRYPTO_AES_128_NIST_GMAC, 0, 0); crypto_register(sc->cid, CRYPTO_AES_192_NIST_GMAC, 0, 0); crypto_register(sc->cid, CRYPTO_AES_256_NIST_GMAC, 0, 0); crypto_register(sc->cid, CRYPTO_AES_XTS, 0, 0); return (0); } static int aesni_detach(device_t dev) { struct aesni_softc *sc; struct aesni_session *ses; sc = device_get_softc(dev); + rw_wlock(&sc->lock); TAILQ_FOREACH(ses, &sc->sessions, next) { if (ses->used) { rw_wunlock(&sc->lock); device_printf(dev, "Cannot detach, sessions still active.\n"); return (EBUSY); } } + sc->dieing = 1; while ((ses = TAILQ_FIRST(&sc->sessions)) != NULL) { TAILQ_REMOVE(&sc->sessions, ses, next); - fpu_kern_free_ctx(ses->fpu_ctx); free(ses, M_AESNI); } rw_wunlock(&sc->lock); - rw_destroy(&sc->lock); crypto_unregister_all(sc->cid); + + /* XXX - wait for anyone in _newsession to leave */ + pause("aniwait", 1); + + rw_destroy(&sc->lock); + + aensi_cleanctx(); + return (0); } static int aesni_newsession(device_t dev, uint32_t *sidp, struct cryptoini *cri) { struct aesni_softc *sc; struct aesni_session *ses; struct cryptoini *encini; int error; if (sidp == NULL || cri == NULL) { CRYPTDEB("no sidp or cri"); return (EINVAL); } sc = device_get_softc(dev); + if (sc->dieing) + return (EINVAL); + ses = NULL; encini = NULL; for (; cri != NULL; cri = cri->cri_next) { switch (cri->cri_alg) { case CRYPTO_AES_CBC: case CRYPTO_AES_ICM: case CRYPTO_AES_XTS: case CRYPTO_AES_NIST_GCM_16: if (encini != NULL) { CRYPTDEB("encini already set"); return (EINVAL); } encini = cri; break; case CRYPTO_AES_128_NIST_GMAC: case CRYPTO_AES_192_NIST_GMAC: case CRYPTO_AES_256_NIST_GMAC: /* * nothing to do here, maybe in the future cache some * values for GHASH */ break; default: CRYPTDEB("unhandled algorithm"); return (EINVAL); } } if (encini == NULL) { CRYPTDEB("no cipher"); return (EINVAL); } rw_wlock(&sc->lock); + if (sc->dieing) { + rw_wunlock(&sc->lock); + return (EINVAL); + } /* * Free sessions goes first, so if first session is used, we need to * allocate one. */ ses = TAILQ_FIRST(&sc->sessions); if (ses == NULL || ses->used) { ses = malloc(sizeof(*ses), M_AESNI, M_NOWAIT | M_ZERO); if (ses == NULL) { rw_wunlock(&sc->lock); return (ENOMEM); } - ses->fpu_ctx = fpu_kern_alloc_ctx(FPU_KERN_NOWAIT); - if (ses->fpu_ctx == NULL) { - free(ses, M_AESNI); - rw_wunlock(&sc->lock); - return (ENOMEM); - } ses->id = sc->sid++; } else { TAILQ_REMOVE(&sc->sessions, ses, next); } ses->used = 1; TAILQ_INSERT_TAIL(&sc->sessions, ses, next); rw_wunlock(&sc->lock); ses->algo = encini->cri_alg; error = aesni_cipher_setup(ses, encini); if (error != 0) { CRYPTDEB("setup failed"); rw_wlock(&sc->lock); aesni_freesession_locked(sc, ses); rw_wunlock(&sc->lock); return (error); } *sidp = ses->id; return (0); } static void aesni_freesession_locked(struct aesni_softc *sc, struct aesni_session *ses) { - struct fpu_kern_ctx *ctx; uint32_t sid; + rw_assert(&sc->lock, RA_WLOCKED); + sid = ses->id; TAILQ_REMOVE(&sc->sessions, ses, next); - ctx = ses->fpu_ctx; *ses = (struct aesni_session){}; ses->id = sid; - ses->fpu_ctx = ctx; TAILQ_INSERT_HEAD(&sc->sessions, ses, next); } static int aesni_freesession(device_t dev, uint64_t tid) { struct aesni_softc *sc; struct aesni_session *ses; uint32_t sid; sc = device_get_softc(dev); sid = ((uint32_t)tid) & 0xffffffff; rw_wlock(&sc->lock); TAILQ_FOREACH_REVERSE(ses, &sc->sessions, aesni_sessions_head, next) { if (ses->id == sid) break; } if (ses == NULL) { rw_wunlock(&sc->lock); return (EINVAL); } aesni_freesession_locked(sc, ses); rw_wunlock(&sc->lock); return (0); } static int aesni_process(device_t dev, struct cryptop *crp, int hint __unused) { struct aesni_softc *sc = device_get_softc(dev); struct aesni_session *ses = NULL; struct cryptodesc *crd, *enccrd, *authcrd; int error, needauth; error = 0; enccrd = NULL; authcrd = NULL; needauth = 0; /* Sanity check. */ if (crp == NULL) return (EINVAL); if (crp->crp_callback == NULL || crp->crp_desc == NULL) { error = EINVAL; goto out; } for (crd = crp->crp_desc; crd != NULL; crd = crd->crd_next) { switch (crd->crd_alg) { case CRYPTO_AES_CBC: case CRYPTO_AES_ICM: case CRYPTO_AES_XTS: if (enccrd != NULL) { error = EINVAL; goto out; } enccrd = crd; break; case CRYPTO_AES_NIST_GCM_16: if (enccrd != NULL) { error = EINVAL; goto out; } enccrd = crd; needauth = 1; break; case CRYPTO_AES_128_NIST_GMAC: case CRYPTO_AES_192_NIST_GMAC: case CRYPTO_AES_256_NIST_GMAC: if (authcrd != NULL) { error = EINVAL; goto out; } authcrd = crd; needauth = 1; break; default: error = EINVAL; goto out; } } if (enccrd == NULL || (needauth && authcrd == NULL)) { error = EINVAL; goto out; } /* CBC & XTS can only handle full blocks for now */ if ((enccrd->crd_alg == CRYPTO_AES_CBC || enccrd->crd_alg == CRYPTO_AES_XTS) && (enccrd->crd_len % AES_BLOCK_LEN) != 0) { error = EINVAL; goto out; } rw_rlock(&sc->lock); TAILQ_FOREACH_REVERSE(ses, &sc->sessions, aesni_sessions_head, next) { if (ses->id == (crp->crp_sid & 0xffffffff)) break; } rw_runlock(&sc->lock); if (ses == NULL) { error = EINVAL; goto out; } error = aesni_cipher_process(ses, enccrd, authcrd, crp); if (error != 0) goto out; out: crp->crp_etype = error; crypto_done(crp); return (error); } uint8_t * aesni_cipher_alloc(struct cryptodesc *enccrd, struct cryptop *crp, int *allocated) { struct mbuf *m; struct uio *uio; struct iovec *iov; uint8_t *addr; if (crp->crp_flags & CRYPTO_F_IMBUF) { m = (struct mbuf *)crp->crp_buf; if (m->m_next != NULL) goto alloc; addr = mtod(m, uint8_t *); } else if (crp->crp_flags & CRYPTO_F_IOV) { uio = (struct uio *)crp->crp_buf; if (uio->uio_iovcnt != 1) goto alloc; iov = uio->uio_iov; addr = (uint8_t *)iov->iov_base; } else addr = (uint8_t *)crp->crp_buf; *allocated = 0; addr += enccrd->crd_skip; return (addr); alloc: addr = malloc(enccrd->crd_len, M_AESNI, M_NOWAIT); if (addr != NULL) { *allocated = 1; crypto_copydata(crp->crp_flags, crp->crp_buf, enccrd->crd_skip, enccrd->crd_len, addr); } else *allocated = 0; return (addr); } static device_method_t aesni_methods[] = { DEVMETHOD(device_identify, aesni_identify), DEVMETHOD(device_probe, aesni_probe), DEVMETHOD(device_attach, aesni_attach), DEVMETHOD(device_detach, aesni_detach), DEVMETHOD(cryptodev_newsession, aesni_newsession), DEVMETHOD(cryptodev_freesession, aesni_freesession), DEVMETHOD(cryptodev_process, aesni_process), {0, 0}, }; static driver_t aesni_driver = { "aesni", aesni_methods, sizeof(struct aesni_softc), }; static devclass_t aesni_devclass; DRIVER_MODULE(aesni, nexus, aesni_driver, aesni_devclass, 0, 0); MODULE_VERSION(aesni, 1); MODULE_DEPEND(aesni, crypto, 1, 1, 1); static int aesni_cipher_setup(struct aesni_session *ses, struct cryptoini *encini) { - struct thread *td; + struct fpu_kern_ctx *ctx; int error; + int kt, ctxidx; - td = curthread; - error = fpu_kern_enter(td, ses->fpu_ctx, FPU_KERN_NORMAL | - FPU_KERN_KTHR); - if (error != 0) - return (error); + kt = is_fpu_kern_thread(0); + if (!kt) { + AQUIRE_CTX(ctxidx, ctx); + error = fpu_kern_enter(curthread, ctx, + FPU_KERN_NORMAL | FPU_KERN_KTHR); + if (error != 0) + goto out; + } + error = aesni_cipher_setup_common(ses, encini->cri_key, encini->cri_klen); - fpu_kern_leave(td, ses->fpu_ctx); + + if (!kt) { + fpu_kern_leave(curthread, ctx); +out: + RELEASE_CTX(ctxidx, ctx); + } return (error); } /* * authcrd contains the associated date. */ static int aesni_cipher_process(struct aesni_session *ses, struct cryptodesc *enccrd, struct cryptodesc *authcrd, struct cryptop *crp) { + struct fpu_kern_ctx *ctx; uint8_t iv[AES_BLOCK_LEN]; uint8_t tag[GMAC_DIGEST_LEN]; - struct thread *td; uint8_t *buf, *authbuf; int error, allocated, authallocated; int ivlen, encflag; + int kt, ctxidx; encflag = (enccrd->crd_flags & CRD_F_ENCRYPT) == CRD_F_ENCRYPT; if ((enccrd->crd_alg == CRYPTO_AES_ICM || enccrd->crd_alg == CRYPTO_AES_NIST_GCM_16) && (enccrd->crd_flags & CRD_F_IV_EXPLICIT) == 0) return (EINVAL); buf = aesni_cipher_alloc(enccrd, crp, &allocated); if (buf == NULL) return (ENOMEM); authbuf = NULL; authallocated = 0; if (authcrd != NULL) { authbuf = aesni_cipher_alloc(authcrd, crp, &authallocated); if (authbuf == NULL) { error = ENOMEM; goto out1; } } - td = curthread; - error = fpu_kern_enter(td, ses->fpu_ctx, FPU_KERN_NORMAL | - FPU_KERN_KTHR); - if (error != 0) - goto out1; + kt = is_fpu_kern_thread(0); + if (!kt) { + AQUIRE_CTX(ctxidx, ctx); + error = fpu_kern_enter(curthread, ctx, + FPU_KERN_NORMAL|FPU_KERN_KTHR); + if (error != 0) + goto out2; + } if ((enccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0) { error = aesni_cipher_setup_common(ses, enccrd->crd_key, enccrd->crd_klen); if (error != 0) goto out; } /* XXX - validate that enccrd and authcrd have/use same key? */ switch (enccrd->crd_alg) { case CRYPTO_AES_CBC: case CRYPTO_AES_ICM: ivlen = AES_BLOCK_LEN; break; case CRYPTO_AES_XTS: ivlen = 8; break; case CRYPTO_AES_NIST_GCM_16: ivlen = 12; /* should support arbitarily larger */ break; } /* Setup iv */ if (encflag) { if ((enccrd->crd_flags & CRD_F_IV_EXPLICIT) != 0) bcopy(enccrd->crd_iv, iv, ivlen); else arc4rand(iv, ivlen, 0); if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) crypto_copyback(crp->crp_flags, crp->crp_buf, enccrd->crd_inject, ivlen, iv); } else { if ((enccrd->crd_flags & CRD_F_IV_EXPLICIT) != 0) bcopy(enccrd->crd_iv, iv, ivlen); else crypto_copydata(crp->crp_flags, crp->crp_buf, enccrd->crd_inject, ivlen, iv); } if (authcrd != NULL && !encflag) crypto_copydata(crp->crp_flags, crp->crp_buf, authcrd->crd_inject, GMAC_DIGEST_LEN, tag); else bzero(tag, sizeof tag); /* Do work */ switch (ses->algo) { case CRYPTO_AES_CBC: if (encflag) aesni_encrypt_cbc(ses->rounds, ses->enc_schedule, enccrd->crd_len, buf, buf, iv); else aesni_decrypt_cbc(ses->rounds, ses->dec_schedule, enccrd->crd_len, buf, iv); break; case CRYPTO_AES_ICM: /* encryption & decryption are the same */ aesni_encrypt_icm(ses->rounds, ses->enc_schedule, enccrd->crd_len, buf, buf, iv); break; case CRYPTO_AES_XTS: if (encflag) aesni_encrypt_xts(ses->rounds, ses->enc_schedule, ses->xts_schedule, enccrd->crd_len, buf, buf, iv); else aesni_decrypt_xts(ses->rounds, ses->dec_schedule, ses->xts_schedule, enccrd->crd_len, buf, buf, iv); break; case CRYPTO_AES_NIST_GCM_16: if (encflag) AES_GCM_encrypt(buf, buf, authbuf, iv, tag, enccrd->crd_len, authcrd->crd_len, ivlen, ses->enc_schedule, ses->rounds); else { if (!AES_GCM_decrypt(buf, buf, authbuf, iv, tag, enccrd->crd_len, authcrd->crd_len, ivlen, ses->enc_schedule, ses->rounds)) error = EBADMSG; } break; } if (allocated) crypto_copyback(crp->crp_flags, crp->crp_buf, enccrd->crd_skip, enccrd->crd_len, buf); if (!error && authcrd != NULL) { crypto_copyback(crp->crp_flags, crp->crp_buf, authcrd->crd_inject, GMAC_DIGEST_LEN, tag); } out: - fpu_kern_leave(td, ses->fpu_ctx); + if (!kt) { + fpu_kern_leave(curthread, ctx); +out2: + RELEASE_CTX(ctxidx, ctx); + } + out1: if (allocated) { bzero(buf, enccrd->crd_len); free(buf, M_AESNI); } if (authallocated) free(authbuf, M_AESNI); return (error); } Index: head/sys/crypto/aesni/aesni.h =================================================================== --- head/sys/crypto/aesni/aesni.h (revision 285288) +++ head/sys/crypto/aesni/aesni.h (revision 285289) @@ -1,116 +1,115 @@ /*- * Copyright (c) 2010 Konstantin Belousov * 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 _AESNI_H_ #define _AESNI_H_ #include #include #include #include #if defined(__amd64__) || (defined(__i386__) && !defined(PC98)) #include #include #include #include #endif #if defined(__i386__) #include #elif defined(__amd64__) #include #endif #define AES128_ROUNDS 10 #define AES192_ROUNDS 12 #define AES256_ROUNDS 14 #define AES_SCHED_LEN ((AES256_ROUNDS + 1) * AES_BLOCK_LEN) struct aesni_session { uint8_t enc_schedule[AES_SCHED_LEN] __aligned(16); uint8_t dec_schedule[AES_SCHED_LEN] __aligned(16); uint8_t xts_schedule[AES_SCHED_LEN] __aligned(16); int algo; int rounds; /* uint8_t *ses_ictx; */ /* uint8_t *ses_octx; */ /* int ses_mlen; */ int used; uint32_t id; TAILQ_ENTRY(aesni_session) next; - struct fpu_kern_ctx *fpu_ctx; }; /* * Internal functions, implemented in assembler. */ void aesni_set_enckey(const uint8_t *userkey, uint8_t *encrypt_schedule /*__aligned(16)*/, int number_of_rounds); void aesni_set_deckey(const uint8_t *encrypt_schedule /*__aligned(16)*/, uint8_t *decrypt_schedule /*__aligned(16)*/, int number_of_rounds); /* * Slightly more public interfaces. */ void aesni_encrypt_cbc(int rounds, const void *key_schedule /*__aligned(16)*/, size_t len, const uint8_t *from, uint8_t *to, const uint8_t iv[AES_BLOCK_LEN]); void aesni_decrypt_cbc(int rounds, const void *key_schedule /*__aligned(16)*/, size_t len, uint8_t *buf, const uint8_t iv[AES_BLOCK_LEN]); void aesni_encrypt_ecb(int rounds, const void *key_schedule /*__aligned(16)*/, size_t len, const uint8_t *from, uint8_t *to); void aesni_decrypt_ecb(int rounds, const void *key_schedule /*__aligned(16)*/, size_t len, const uint8_t *from, uint8_t *to); void aesni_encrypt_icm(int rounds, const void *key_schedule /*__aligned(16)*/, size_t len, const uint8_t *from, uint8_t *to, const uint8_t iv[AES_BLOCK_LEN]); void aesni_encrypt_xts(int rounds, const void *data_schedule /*__aligned(16)*/, const void *tweak_schedule /*__aligned(16)*/, size_t len, const uint8_t *from, uint8_t *to, const uint8_t iv[AES_BLOCK_LEN]); void aesni_decrypt_xts(int rounds, const void *data_schedule /*__aligned(16)*/, const void *tweak_schedule /*__aligned(16)*/, size_t len, const uint8_t *from, uint8_t *to, const uint8_t iv[AES_BLOCK_LEN]); /* GCM & GHASH functions */ void AES_GCM_encrypt(const unsigned char *in, unsigned char *out, const unsigned char *addt, const unsigned char *ivec, unsigned char *tag, uint32_t nbytes, uint32_t abytes, int ibytes, const unsigned char *key, int nr); int AES_GCM_decrypt(const unsigned char *in, unsigned char *out, const unsigned char *addt, const unsigned char *ivec, unsigned char *tag, uint32_t nbytes, uint32_t abytes, int ibytes, const unsigned char *key, int nr); int aesni_cipher_setup_common(struct aesni_session *ses, const uint8_t *key, int keylen); uint8_t *aesni_cipher_alloc(struct cryptodesc *enccrd, struct cryptop *crp, int *allocated); #endif /* _AESNI_H_ */