1 /* $OpenBSD: cryptodev.c,v 1.52 2002/06/19 07:22:46 deraadt Exp $ */
4 * Copyright (c) 2001 Theo de Raadt
5 * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * Effort sponsored in part by the Defense Advanced Research Projects
31 * Agency (DARPA) and Air Force Research Laboratory, Air Force
32 * Materiel Command, USAF, under agreement number F30602-01-2-0537.
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include "opt_compat.h"
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/malloc.h>
45 #include <sys/mutex.h>
46 #include <sys/sysctl.h>
48 #include <sys/filedesc.h>
49 #include <sys/errno.h>
51 #include <sys/random.h>
53 #include <sys/kernel.h>
54 #include <sys/module.h>
55 #include <sys/fcntl.h>
59 #include <opencrypto/cryptodev.h>
60 #include <opencrypto/xform.h>
62 #ifdef COMPAT_FREEBSD32
63 #include <sys/mount.h>
64 #include <compat/freebsd32/freebsd32.h>
76 struct session2_op32 {
109 struct crparam32 crk_param[CRK_MAXPARAM];
112 struct cryptotstat32 {
113 struct timespec32 acc;
114 struct timespec32 min;
115 struct timespec32 max;
119 struct cryptostats32 {
127 u_int32_t cs_kblocks;
128 struct cryptotstat32 cs_invoke;
129 struct cryptotstat32 cs_done;
130 struct cryptotstat32 cs_cb;
131 struct cryptotstat32 cs_finis;
134 #define CIOCGSESSION32 _IOWR('c', 101, struct session_op32)
135 #define CIOCCRYPT32 _IOWR('c', 103, struct crypt_op32)
136 #define CIOCKEY32 _IOWR('c', 104, struct crypt_kop32)
137 #define CIOCGSESSION232 _IOWR('c', 106, struct session2_op32)
138 #define CIOCKEY232 _IOWR('c', 107, struct crypt_kop32)
141 session_op_from_32(const struct session_op32 *from, struct session_op *to)
144 CP(*from, *to, cipher);
146 CP(*from, *to, keylen);
147 PTRIN_CP(*from, *to, key);
148 CP(*from, *to, mackeylen);
149 PTRIN_CP(*from, *to, mackey);
154 session2_op_from_32(const struct session2_op32 *from, struct session2_op *to)
157 session_op_from_32((const struct session_op32 *)from,
158 (struct session_op *)to);
159 CP(*from, *to, crid);
163 session_op_to_32(const struct session_op *from, struct session_op32 *to)
166 CP(*from, *to, cipher);
168 CP(*from, *to, keylen);
169 PTROUT_CP(*from, *to, key);
170 CP(*from, *to, mackeylen);
171 PTROUT_CP(*from, *to, mackey);
176 session2_op_to_32(const struct session2_op *from, struct session2_op32 *to)
179 session_op_to_32((const struct session_op *)from,
180 (struct session_op32 *)to);
181 CP(*from, *to, crid);
185 crypt_op_from_32(const struct crypt_op32 *from, struct crypt_op *to)
190 CP(*from, *to, flags);
192 PTRIN_CP(*from, *to, src);
193 PTRIN_CP(*from, *to, dst);
194 PTRIN_CP(*from, *to, mac);
195 PTRIN_CP(*from, *to, iv);
199 crypt_op_to_32(const struct crypt_op *from, struct crypt_op32 *to)
204 CP(*from, *to, flags);
206 PTROUT_CP(*from, *to, src);
207 PTROUT_CP(*from, *to, dst);
208 PTROUT_CP(*from, *to, mac);
209 PTROUT_CP(*from, *to, iv);
213 crparam_from_32(const struct crparam32 *from, struct crparam *to)
216 PTRIN_CP(*from, *to, crp_p);
217 CP(*from, *to, crp_nbits);
221 crparam_to_32(const struct crparam *from, struct crparam32 *to)
224 PTROUT_CP(*from, *to, crp_p);
225 CP(*from, *to, crp_nbits);
229 crypt_kop_from_32(const struct crypt_kop32 *from, struct crypt_kop *to)
233 CP(*from, *to, crk_op);
234 CP(*from, *to, crk_status);
235 CP(*from, *to, crk_iparams);
236 CP(*from, *to, crk_oparams);
237 CP(*from, *to, crk_crid);
238 for (i = 0; i < CRK_MAXPARAM; i++)
239 crparam_from_32(&from->crk_param[i], &to->crk_param[i]);
243 crypt_kop_to_32(const struct crypt_kop *from, struct crypt_kop32 *to)
247 CP(*from, *to, crk_op);
248 CP(*from, *to, crk_status);
249 CP(*from, *to, crk_iparams);
250 CP(*from, *to, crk_oparams);
251 CP(*from, *to, crk_crid);
252 for (i = 0; i < CRK_MAXPARAM; i++)
253 crparam_to_32(&from->crk_param[i], &to->crk_param[i]);
258 TAILQ_ENTRY(csession) next;
261 struct mtx lock; /* for op submission */
264 struct enc_xform *txform;
266 struct auth_hash *thash;
270 u_char tmp_iv[EALG_MAX_BLOCK_LEN];
281 TAILQ_HEAD(csessionlist, csession) csessions;
285 static int cryptof_ioctl(struct file *, u_long, void *,
286 struct ucred *, struct thread *);
287 static int cryptof_stat(struct file *, struct stat *,
288 struct ucred *, struct thread *);
289 static int cryptof_close(struct file *, struct thread *);
290 static int cryptof_fill_kinfo(struct file *, struct kinfo_file *,
293 static struct fileops cryptofops = {
294 .fo_read = invfo_rdwr,
295 .fo_write = invfo_rdwr,
296 .fo_truncate = invfo_truncate,
297 .fo_ioctl = cryptof_ioctl,
298 .fo_poll = invfo_poll,
299 .fo_kqfilter = invfo_kqfilter,
300 .fo_stat = cryptof_stat,
301 .fo_close = cryptof_close,
302 .fo_chmod = invfo_chmod,
303 .fo_chown = invfo_chown,
304 .fo_sendfile = invfo_sendfile,
305 .fo_fill_kinfo = cryptof_fill_kinfo,
308 static struct csession *csefind(struct fcrypt *, u_int);
309 static int csedelete(struct fcrypt *, struct csession *);
310 static struct csession *cseadd(struct fcrypt *, struct csession *);
311 static struct csession *csecreate(struct fcrypt *, u_int64_t, caddr_t,
312 u_int64_t, caddr_t, u_int64_t, u_int32_t, u_int32_t, struct enc_xform *,
314 static int csefree(struct csession *);
316 static int cryptodev_op(struct csession *, struct crypt_op *,
317 struct ucred *, struct thread *td);
318 static int cryptodev_key(struct crypt_kop *);
319 static int cryptodev_find(struct crypt_find_op *);
322 * Check a crypto identifier to see if it requested
323 * a software device/driver. This can be done either
324 * by device name/class or through search constraints.
327 checkforsoftware(int crid)
330 if (!crypto_devallowsoft) {
331 if (crid & CRYPTOCAP_F_SOFTWARE)
332 return EINVAL; /* XXX */
333 if ((crid & CRYPTOCAP_F_HARDWARE) == 0 &&
334 (crypto_getcaps(crid) & CRYPTOCAP_F_HARDWARE) == 0)
335 return EINVAL; /* XXX */
346 struct ucred *active_cred,
349 #define SES2(p) ((struct session2_op *)p)
350 struct cryptoini cria, crie;
351 struct fcrypt *fcr = fp->f_data;
352 struct csession *cse;
353 struct session_op *sop;
354 struct crypt_op *cop;
355 struct enc_xform *txform = NULL;
356 struct auth_hash *thash = NULL;
357 struct crypt_kop *kop;
361 #ifdef COMPAT_FREEBSD32
362 struct session2_op sopc;
363 struct crypt_op copc;
364 struct crypt_kop kopc;
370 #ifdef COMPAT_FREEBSD32
372 case CIOCGSESSION232:
373 if (cmd == CIOCGSESSION32) {
374 session_op_from_32(data, (struct session_op *)&sopc);
375 sop = (struct session_op *)&sopc;
376 } else if (cmd == CIOCGSESSION232) {
377 session2_op_from_32(data, &sopc);
378 sop = (struct session_op *)&sopc;
381 sop = (struct session_op *)data;
382 switch (sop->cipher) {
386 txform = &enc_xform_des;
388 case CRYPTO_3DES_CBC:
389 txform = &enc_xform_3des;
392 txform = &enc_xform_blf;
394 case CRYPTO_CAST_CBC:
395 txform = &enc_xform_cast5;
397 case CRYPTO_SKIPJACK_CBC:
398 txform = &enc_xform_skipjack;
401 txform = &enc_xform_rijndael128;
404 txform = &enc_xform_aes_xts;
406 case CRYPTO_NULL_CBC:
407 txform = &enc_xform_null;
410 txform = &enc_xform_arc4;
412 case CRYPTO_CAMELLIA_CBC:
413 txform = &enc_xform_camellia;
422 case CRYPTO_MD5_HMAC:
423 thash = &auth_hash_hmac_md5;
425 case CRYPTO_SHA1_HMAC:
426 thash = &auth_hash_hmac_sha1;
428 case CRYPTO_SHA2_256_HMAC:
429 thash = &auth_hash_hmac_sha2_256;
431 case CRYPTO_SHA2_384_HMAC:
432 thash = &auth_hash_hmac_sha2_384;
434 case CRYPTO_SHA2_512_HMAC:
435 thash = &auth_hash_hmac_sha2_512;
437 case CRYPTO_RIPEMD160_HMAC:
438 thash = &auth_hash_hmac_ripemd_160;
442 thash = &auth_hash_md5;
445 thash = &auth_hash_sha1;
448 case CRYPTO_NULL_HMAC:
449 thash = &auth_hash_null;
455 bzero(&crie, sizeof(crie));
456 bzero(&cria, sizeof(cria));
459 crie.cri_alg = txform->type;
460 crie.cri_klen = sop->keylen * 8;
461 if (sop->keylen > txform->maxkey ||
462 sop->keylen < txform->minkey) {
467 crie.cri_key = malloc(crie.cri_klen / 8,
469 if ((error = copyin(sop->key, crie.cri_key,
473 crie.cri_next = &cria;
477 cria.cri_alg = thash->type;
478 cria.cri_klen = sop->mackeylen * 8;
479 if (sop->mackeylen != thash->keysize) {
485 cria.cri_key = malloc(cria.cri_klen / 8,
487 if ((error = copyin(sop->mackey, cria.cri_key,
493 /* NB: CIOCGSESSION2 has the crid */
494 if (cmd == CIOCGSESSION2
495 #ifdef COMPAT_FREEBSD32
496 || cmd == CIOCGSESSION232
499 crid = SES2(sop)->crid;
500 error = checkforsoftware(crid);
504 crid = CRYPTOCAP_F_HARDWARE;
505 error = crypto_newsession(&sid, (txform ? &crie : &cria), crid);
509 cse = csecreate(fcr, sid, crie.cri_key, crie.cri_klen,
510 cria.cri_key, cria.cri_klen, sop->cipher, sop->mac, txform,
514 crypto_freesession(sid);
519 if (cmd == CIOCGSESSION2
520 #ifdef COMPAT_FREEBSD32
521 || cmd == CIOCGSESSION232
524 /* return hardware/driver id */
525 SES2(sop)->crid = CRYPTO_SESID2HID(cse->sid);
530 free(crie.cri_key, M_XDATA);
532 free(cria.cri_key, M_XDATA);
534 #ifdef COMPAT_FREEBSD32
536 if (cmd == CIOCGSESSION32)
537 session_op_to_32(sop, data);
538 else if (cmd == CIOCGSESSION232)
539 session2_op_to_32((struct session2_op *)sop,
545 ses = *(u_int32_t *)data;
546 cse = csefind(fcr, ses);
550 error = csefree(cse);
553 #ifdef COMPAT_FREEBSD32
555 if (cmd == CIOCCRYPT32) {
557 crypt_op_from_32(data, cop);
560 cop = (struct crypt_op *)data;
561 cse = csefind(fcr, cop->ses);
564 error = cryptodev_op(cse, cop, active_cred, td);
565 #ifdef COMPAT_FREEBSD32
566 if (error == 0 && cmd == CIOCCRYPT32)
567 crypt_op_to_32(cop, data);
572 #ifdef COMPAT_FREEBSD32
576 if (!crypto_userasymcrypto)
577 return (EPERM); /* XXX compat? */
578 #ifdef COMPAT_FREEBSD32
579 if (cmd == CIOCKEY32 || cmd == CIOCKEY232) {
581 crypt_kop_from_32(data, kop);
584 kop = (struct crypt_kop *)data;
586 #ifdef COMPAT_FREEBSD32
590 /* NB: crypto core enforces s/w driver use */
592 CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE;
595 error = cryptodev_key(kop);
597 #ifdef COMPAT_FREEBSD32
598 if (cmd == CIOCKEY32 || cmd == CIOCKEY232)
599 crypt_kop_to_32(kop, data);
603 if (!crypto_userasymcrypto) {
605 * NB: if user asym crypto operations are
606 * not permitted return "no algorithms"
607 * so well-behaved applications will just
608 * fallback to doing them in software.
612 error = crypto_getfeat((int *)data);
615 error = cryptodev_find((struct crypt_find_op *)data);
625 static int cryptodev_cb(void *);
630 struct csession *cse,
631 struct crypt_op *cop,
632 struct ucred *active_cred,
635 struct cryptop *crp = NULL;
636 struct cryptodesc *crde = NULL, *crda = NULL;
639 if (cop->len > 256*1024-4)
643 if (cop->len == 0 || (cop->len % cse->txform->blocksize) != 0)
647 cse->uio.uio_iov = &cse->iovec;
648 cse->uio.uio_iovcnt = 1;
649 cse->uio.uio_offset = 0;
650 cse->uio.uio_resid = cop->len;
651 cse->uio.uio_segflg = UIO_SYSSPACE;
652 cse->uio.uio_rw = UIO_WRITE;
653 cse->uio.uio_td = td;
654 cse->uio.uio_iov[0].iov_len = cop->len;
656 cse->uio.uio_iov[0].iov_len += cse->thash->hashsize;
657 cse->uio.uio_resid += cse->thash->hashsize;
659 cse->uio.uio_iov[0].iov_base = malloc(cse->uio.uio_iov[0].iov_len,
662 crp = crypto_getreq((cse->txform != NULL) + (cse->thash != NULL));
669 crda = crp->crp_desc;
671 crde = crda->crd_next;
674 crde = crp->crp_desc;
681 if ((error = copyin(cop->src, cse->uio.uio_iov[0].iov_base, cop->len)))
686 crda->crd_len = cop->len;
687 crda->crd_inject = cop->len;
689 crda->crd_alg = cse->mac;
690 crda->crd_key = cse->mackey;
691 crda->crd_klen = cse->mackeylen * 8;
695 if (cop->op == COP_ENCRYPT)
696 crde->crd_flags |= CRD_F_ENCRYPT;
698 crde->crd_flags &= ~CRD_F_ENCRYPT;
699 crde->crd_len = cop->len;
700 crde->crd_inject = 0;
702 crde->crd_alg = cse->cipher;
703 crde->crd_key = cse->key;
704 crde->crd_klen = cse->keylen * 8;
707 crp->crp_ilen = cop->len;
708 crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM
709 | (cop->flags & COP_F_BATCH);
710 crp->crp_buf = (caddr_t)&cse->uio;
711 crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
712 crp->crp_sid = cse->sid;
713 crp->crp_opaque = (void *)cse;
720 if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
724 if ((error = copyin(cop->iv, cse->tmp_iv, cse->txform->blocksize)))
726 bcopy(cse->tmp_iv, crde->crd_iv, cse->txform->blocksize);
727 crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
729 } else if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
732 crde->crd_flags |= CRD_F_IV_PRESENT;
733 crde->crd_skip = cse->txform->blocksize;
734 crde->crd_len -= cse->txform->blocksize;
737 if (cop->mac && crda == NULL) {
744 * Let the dispatch run unlocked, then, interlock against the
745 * callback before checking if the operation completed and going
746 * to sleep. This insures drivers don't inherit our lock which
747 * results in a lock order reversal between crypto_dispatch forced
748 * entry and the crypto_done callback into us.
750 error = crypto_dispatch(crp);
751 mtx_lock(&cse->lock);
752 if (error == 0 && (crp->crp_flags & CRYPTO_F_DONE) == 0)
753 error = msleep(crp, &cse->lock, PWAIT, "crydev", 0);
754 mtx_unlock(&cse->lock);
759 if (crp->crp_etype == EAGAIN) {
761 crp->crp_flags &= ~CRYPTO_F_DONE;
765 if (crp->crp_etype != 0) {
766 error = crp->crp_etype;
776 (error = copyout(cse->uio.uio_iov[0].iov_base, cop->dst, cop->len)))
780 (error = copyout((caddr_t)cse->uio.uio_iov[0].iov_base + cop->len,
781 cop->mac, cse->thash->hashsize)))
787 if (cse->uio.uio_iov[0].iov_base)
788 free(cse->uio.uio_iov[0].iov_base, M_XDATA);
794 cryptodev_cb(void *op)
796 struct cryptop *crp = (struct cryptop *) op;
797 struct csession *cse = (struct csession *)crp->crp_opaque;
799 mtx_lock(&cse->lock);
800 cse->error = crp->crp_etype;
802 mtx_unlock(&cse->lock);
807 cryptodevkey_cb(void *op)
809 struct cryptkop *krp = (struct cryptkop *) op;
816 cryptodev_key(struct crypt_kop *kop)
818 struct cryptkop *krp = NULL;
820 int in, out, size, i;
822 if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM) {
826 in = kop->crk_iparams;
827 out = kop->crk_oparams;
828 switch (kop->crk_op) {
830 if (in == 3 && out == 1)
833 case CRK_MOD_EXP_CRT:
834 if (in == 6 && out == 1)
838 if (in == 5 && out == 2)
842 if (in == 7 && out == 0)
845 case CRK_DH_COMPUTE_KEY:
846 if (in == 3 && out == 1)
853 krp = (struct cryptkop *)malloc(sizeof *krp, M_XDATA, M_WAITOK|M_ZERO);
856 krp->krp_op = kop->crk_op;
857 krp->krp_status = kop->crk_status;
858 krp->krp_iparams = kop->crk_iparams;
859 krp->krp_oparams = kop->crk_oparams;
860 krp->krp_crid = kop->crk_crid;
862 krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
864 for (i = 0; i < CRK_MAXPARAM; i++) {
865 if (kop->crk_param[i].crp_nbits > 65536)
866 /* Limit is the same as in OpenBSD */
868 krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
870 for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
871 size = (krp->krp_param[i].crp_nbits + 7) / 8;
874 krp->krp_param[i].crp_p = malloc(size, M_XDATA, M_WAITOK);
875 if (i >= krp->krp_iparams)
877 error = copyin(kop->crk_param[i].crp_p, krp->krp_param[i].crp_p, size);
882 error = crypto_kdispatch(krp);
885 error = tsleep(krp, PSOCK, "crydev", 0);
887 /* XXX can this happen? if so, how do we recover? */
891 kop->crk_crid = krp->krp_crid; /* device that did the work */
892 if (krp->krp_status != 0) {
893 error = krp->krp_status;
897 for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams; i++) {
898 size = (krp->krp_param[i].crp_nbits + 7) / 8;
901 error = copyout(krp->krp_param[i].crp_p, kop->crk_param[i].crp_p, size);
908 kop->crk_status = krp->krp_status;
909 for (i = 0; i < CRK_MAXPARAM; i++) {
910 if (krp->krp_param[i].crp_p)
911 free(krp->krp_param[i].crp_p, M_XDATA);
919 cryptodev_find(struct crypt_find_op *find)
923 if (find->crid != -1) {
924 dev = crypto_find_device_byhid(find->crid);
927 strlcpy(find->name, device_get_nameunit(dev),
930 find->crid = crypto_find_driver(find->name);
931 if (find->crid == -1)
942 struct ucred *active_cred,
951 cryptof_close(struct file *fp, struct thread *td)
953 struct fcrypt *fcr = fp->f_data;
954 struct csession *cse;
956 while ((cse = TAILQ_FIRST(&fcr->csessions))) {
957 TAILQ_REMOVE(&fcr->csessions, cse, next);
966 cryptof_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
969 kif->kf_type = KF_TYPE_CRYPTO;
973 static struct csession *
974 csefind(struct fcrypt *fcr, u_int ses)
976 struct csession *cse;
978 TAILQ_FOREACH(cse, &fcr->csessions, next)
985 csedelete(struct fcrypt *fcr, struct csession *cse_del)
987 struct csession *cse;
989 TAILQ_FOREACH(cse, &fcr->csessions, next) {
990 if (cse == cse_del) {
991 TAILQ_REMOVE(&fcr->csessions, cse, next);
998 static struct csession *
999 cseadd(struct fcrypt *fcr, struct csession *cse)
1001 TAILQ_INSERT_TAIL(&fcr->csessions, cse, next);
1002 cse->ses = fcr->sesn++;
1007 csecreate(struct fcrypt *fcr, u_int64_t sid, caddr_t key, u_int64_t keylen,
1008 caddr_t mackey, u_int64_t mackeylen, u_int32_t cipher, u_int32_t mac,
1009 struct enc_xform *txform, struct auth_hash *thash)
1011 struct csession *cse;
1013 cse = malloc(sizeof(struct csession), M_XDATA, M_NOWAIT | M_ZERO);
1016 mtx_init(&cse->lock, "cryptodev", "crypto session lock", MTX_DEF);
1018 cse->keylen = keylen/8;
1019 cse->mackey = mackey;
1020 cse->mackeylen = mackeylen/8;
1022 cse->cipher = cipher;
1024 cse->txform = txform;
1031 csefree(struct csession *cse)
1035 error = crypto_freesession(cse->sid);
1036 mtx_destroy(&cse->lock);
1038 free(cse->key, M_XDATA);
1040 free(cse->mackey, M_XDATA);
1046 cryptoopen(struct cdev *dev, int oflags, int devtype, struct thread *td)
1052 cryptoread(struct cdev *dev, struct uio *uio, int ioflag)
1058 cryptowrite(struct cdev *dev, struct uio *uio, int ioflag)
1064 cryptoioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
1072 fcr = malloc(sizeof(struct fcrypt), M_XDATA, M_WAITOK);
1073 TAILQ_INIT(&fcr->csessions);
1076 error = falloc(td, &f, &fd, 0);
1082 /* falloc automatically provides an extra reference to 'f'. */
1083 finit(f, FREAD | FWRITE, DTYPE_CRYPTO, fcr, &cryptofops);
1084 *(u_int32_t *)data = fd;
1088 error = cryptodev_find((struct crypt_find_op *)data);
1091 error = crypto_getfeat((int *)data);
1100 static struct cdevsw crypto_cdevsw = {
1101 .d_version = D_VERSION,
1102 .d_flags = D_NEEDGIANT,
1103 .d_open = cryptoopen,
1104 .d_read = cryptoread,
1105 .d_write = cryptowrite,
1106 .d_ioctl = cryptoioctl,
1109 static struct cdev *crypto_dev;
1112 * Initialization code, both for static and dynamic loading.
1115 cryptodev_modevent(module_t mod, int type, void *unused)
1120 printf("crypto: <crypto device>\n");
1121 crypto_dev = make_dev(&crypto_cdevsw, 0,
1122 UID_ROOT, GID_WHEEL, 0666,
1126 /*XXX disallow if active sessions */
1127 destroy_dev(crypto_dev);
1133 static moduledata_t cryptodev_mod = {
1138 MODULE_VERSION(cryptodev, 1);
1139 DECLARE_MODULE(cryptodev, cryptodev_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
1140 MODULE_DEPEND(cryptodev, crypto, 1, 1, 1);
1141 MODULE_DEPEND(cryptodev, zlib, 1, 1, 1);