Home | History | Annotate | Line # | Download | only in opencrypto
cryptodev.c revision 1.48
      1  1.48  christos /*	$NetBSD: cryptodev.c,v 1.48 2009/04/11 15:47:34 christos Exp $ */
      2   1.4  jonathan /*	$FreeBSD: src/sys/opencrypto/cryptodev.c,v 1.4.2.4 2003/06/03 00:09:02 sam Exp $	*/
      3   1.1  jonathan /*	$OpenBSD: cryptodev.c,v 1.53 2002/07/10 22:21:30 mickey Exp $	*/
      4   1.1  jonathan 
      5  1.36       tls /*-
      6  1.36       tls  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      7  1.36       tls  * All rights reserved.
      8  1.36       tls  *
      9  1.36       tls  * This code is derived from software contributed to The NetBSD Foundation
     10  1.36       tls  * by Coyote Point Systems, Inc.
     11  1.36       tls  *
     12  1.36       tls  * Redistribution and use in source and binary forms, with or without
     13  1.36       tls  * modification, are permitted provided that the following conditions
     14  1.36       tls  * are met:
     15  1.36       tls  * 1. Redistributions of source code must retain the above copyright
     16  1.36       tls  *    notice, this list of conditions and the following disclaimer.
     17  1.36       tls  * 2. Redistributions in binary form must reproduce the above copyright
     18  1.36       tls  *    notice, this list of conditions and the following disclaimer in the
     19  1.36       tls  *    documentation and/or other materials provided with the distribution.
     20  1.36       tls  *
     21  1.36       tls  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     22  1.36       tls  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  1.36       tls  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  1.36       tls  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     25  1.36       tls  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  1.36       tls  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  1.36       tls  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  1.36       tls  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  1.36       tls  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  1.36       tls  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  1.36       tls  * POSSIBILITY OF SUCH DAMAGE.
     32  1.36       tls  */
     33  1.36       tls 
     34   1.1  jonathan /*
     35   1.1  jonathan  * Copyright (c) 2001 Theo de Raadt
     36   1.1  jonathan  *
     37   1.1  jonathan  * Redistribution and use in source and binary forms, with or without
     38   1.1  jonathan  * modification, are permitted provided that the following conditions
     39   1.1  jonathan  * are met:
     40   1.1  jonathan  *
     41   1.1  jonathan  * 1. Redistributions of source code must retain the above copyright
     42   1.1  jonathan  *   notice, this list of conditions and the following disclaimer.
     43   1.1  jonathan  * 2. Redistributions in binary form must reproduce the above copyright
     44   1.1  jonathan  *   notice, this list of conditions and the following disclaimer in the
     45   1.1  jonathan  *   documentation and/or other materials provided with the distribution.
     46   1.1  jonathan  * 3. The name of the author may not be used to endorse or promote products
     47   1.1  jonathan  *   derived from this software without specific prior written permission.
     48   1.1  jonathan  *
     49   1.1  jonathan  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     50   1.1  jonathan  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     51   1.1  jonathan  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     52   1.1  jonathan  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     53   1.1  jonathan  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     54   1.1  jonathan  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     55   1.1  jonathan  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     56   1.1  jonathan  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     57   1.1  jonathan  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     58   1.1  jonathan  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     59   1.1  jonathan  *
     60   1.1  jonathan  * Effort sponsored in part by the Defense Advanced Research Projects
     61   1.1  jonathan  * Agency (DARPA) and Air Force Research Laboratory, Air Force
     62   1.1  jonathan  * Materiel Command, USAF, under agreement number F30602-01-2-0537.
     63   1.1  jonathan  *
     64   1.1  jonathan  */
     65   1.1  jonathan 
     66   1.1  jonathan #include <sys/cdefs.h>
     67  1.48  christos __KERNEL_RCSID(0, "$NetBSD: cryptodev.c,v 1.48 2009/04/11 15:47:34 christos Exp $");
     68   1.1  jonathan 
     69   1.1  jonathan #include <sys/param.h>
     70   1.1  jonathan #include <sys/systm.h>
     71  1.36       tls #include <sys/kmem.h>
     72   1.1  jonathan #include <sys/malloc.h>
     73   1.1  jonathan #include <sys/mbuf.h>
     74  1.29       tls #include <sys/pool.h>
     75   1.1  jonathan #include <sys/sysctl.h>
     76   1.1  jonathan #include <sys/file.h>
     77   1.1  jonathan #include <sys/filedesc.h>
     78   1.1  jonathan #include <sys/errno.h>
     79   1.2  jonathan #include <sys/md5.h>
     80   1.1  jonathan #include <sys/sha1.h>
     81   1.1  jonathan #include <sys/conf.h>
     82   1.1  jonathan #include <sys/device.h>
     83  1.21      elad #include <sys/kauth.h>
     84  1.36       tls #include <sys/select.h>
     85  1.36       tls #include <sys/poll.h>
     86  1.37    dogcow #include <sys/atomic.h>
     87  1.48  christos #include <sys/stat.h>
     88   1.1  jonathan 
     89  1.33       tls #include "opt_ocf.h"
     90   1.1  jonathan #include <opencrypto/cryptodev.h>
     91  1.46    darran #include <opencrypto/ocryptodev.h>
     92   1.1  jonathan #include <opencrypto/xform.h>
     93   1.1  jonathan 
     94   1.1  jonathan struct csession {
     95   1.1  jonathan 	TAILQ_ENTRY(csession) next;
     96   1.1  jonathan 	u_int64_t	sid;
     97   1.1  jonathan 	u_int32_t	ses;
     98   1.1  jonathan 
     99  1.46    darran 	u_int32_t	cipher;		/* note: shares name space in crd_alg */
    100   1.1  jonathan 	struct enc_xform *txform;
    101  1.46    darran 	u_int32_t	mac;		/* note: shares name space in crd_alg */
    102   1.1  jonathan 	struct auth_hash *thash;
    103  1.46    darran 	u_int32_t	comp_alg;	/* note: shares name space in crd_alg */
    104  1.46    darran 	struct comp_algo *tcomp;
    105   1.1  jonathan 
    106  1.26  christos 	void *		key;
    107   1.1  jonathan 	int		keylen;
    108   1.1  jonathan 	u_char		tmp_iv[EALG_MAX_BLOCK_LEN];
    109   1.1  jonathan 
    110  1.26  christos 	void *		mackey;
    111   1.1  jonathan 	int		mackeylen;
    112   1.1  jonathan 	u_char		tmp_mac[CRYPTO_MAX_MAC_LEN];
    113   1.1  jonathan 
    114  1.29       tls 	struct iovec	iovec[1];	/* user requests never have more */
    115   1.1  jonathan 	struct uio	uio;
    116   1.1  jonathan 	int		error;
    117   1.1  jonathan };
    118   1.1  jonathan 
    119   1.1  jonathan struct fcrypt {
    120   1.1  jonathan 	TAILQ_HEAD(csessionlist, csession) csessions;
    121  1.36       tls 	TAILQ_HEAD(crprethead, cryptop) crp_ret_mq;
    122  1.36       tls 	TAILQ_HEAD(krprethead, cryptkop) crp_ret_mkq;
    123   1.1  jonathan 	int		sesn;
    124  1.36       tls 	struct selinfo	sinfo;
    125  1.36       tls 	u_int32_t	requestid;
    126  1.48  christos 	struct timespec atime;
    127  1.48  christos 	struct timespec mtime;
    128  1.48  christos 	struct timespec btime;
    129   1.1  jonathan };
    130   1.1  jonathan 
    131  1.29       tls /* For our fixed-size allocations */
    132  1.38     rmind static struct pool fcrpl;
    133  1.38     rmind static struct pool csepl;
    134   1.1  jonathan 
    135   1.1  jonathan /* Declaration of master device (fd-cloning/ctxt-allocating) entrypoints */
    136  1.16  christos static int	cryptoopen(dev_t dev, int flag, int mode, struct lwp *l);
    137   1.1  jonathan static int	cryptoread(dev_t dev, struct uio *uio, int ioflag);
    138   1.1  jonathan static int	cryptowrite(dev_t dev, struct uio *uio, int ioflag);
    139  1.16  christos static int	cryptoselect(dev_t dev, int rw, struct lwp *l);
    140   1.1  jonathan 
    141   1.1  jonathan /* Declaration of cloned-device (per-ctxt) entrypoints */
    142  1.36       tls static int	cryptof_read(struct file *, off_t *, struct uio *,
    143  1.42  christos     kauth_cred_t, int);
    144  1.36       tls static int	cryptof_write(struct file *, off_t *, struct uio *,
    145  1.42  christos     kauth_cred_t, int);
    146  1.36       tls static int	cryptof_ioctl(struct file *, u_long, void *);
    147  1.36       tls static int	cryptof_close(struct file *);
    148  1.36       tls static int 	cryptof_poll(struct file *, int);
    149  1.48  christos static int 	cryptof_stat(struct file *, struct stat *);
    150   1.1  jonathan 
    151  1.12  christos static const struct fileops cryptofops = {
    152  1.47        ad 	.fo_read = cryptof_read,
    153  1.47        ad 	.fo_write = cryptof_write,
    154  1.47        ad 	.fo_ioctl = cryptof_ioctl,
    155  1.47        ad 	.fo_fcntl = fnullop_fcntl,
    156  1.47        ad 	.fo_poll = cryptof_poll,
    157  1.48  christos 	.fo_stat = cryptof_stat,
    158  1.47        ad 	.fo_close = cryptof_close,
    159  1.47        ad 	.fo_kqfilter = fnullop_kqfilter,
    160  1.47        ad 	.fo_drain = fnullop_drain,
    161   1.1  jonathan };
    162   1.1  jonathan 
    163  1.46    darran struct csession *cryptodev_csefind(struct fcrypt *, u_int);
    164   1.1  jonathan static struct	csession *csefind(struct fcrypt *, u_int);
    165   1.1  jonathan static int	csedelete(struct fcrypt *, struct csession *);
    166   1.1  jonathan static struct	csession *cseadd(struct fcrypt *, struct csession *);
    167  1.42  christos static struct	csession *csecreate(struct fcrypt *, u_int64_t, void *,
    168  1.46    darran     u_int64_t, void *, u_int64_t, u_int32_t, u_int32_t, u_int32_t,
    169  1.46    darran     struct enc_xform *, struct auth_hash *, struct comp_algo *);
    170   1.1  jonathan static int	csefree(struct csession *);
    171   1.1  jonathan 
    172   1.1  jonathan static int	cryptodev_key(struct crypt_kop *);
    173  1.36       tls static int	cryptodev_mkey(struct fcrypt *, struct crypt_n_kop *, int);
    174  1.36       tls static int	cryptodev_msessionfin(struct fcrypt *, int, u_int32_t *);
    175   1.1  jonathan 
    176   1.1  jonathan static int	cryptodev_cb(void *);
    177   1.1  jonathan static int	cryptodevkey_cb(void *);
    178   1.1  jonathan 
    179  1.36       tls static int	cryptodev_mcb(void *);
    180  1.36       tls static int	cryptodevkey_mcb(void *);
    181  1.36       tls 
    182  1.36       tls static int 	cryptodev_getmstatus(struct fcrypt *, struct crypt_result *,
    183  1.42  christos     int);
    184  1.36       tls static int	cryptodev_getstatus(struct fcrypt *, struct crypt_result *);
    185  1.36       tls 
    186  1.46    darran extern int	ocryptof_ioctl(struct file *, u_long, void *);
    187  1.46    darran 
    188   1.9  jonathan /*
    189   1.9  jonathan  * sysctl-able control variables for /dev/crypto now defined in crypto.c:
    190   1.9  jonathan  * crypto_usercrypto, crypto_userasmcrypto, crypto_devallowsoft.
    191   1.9  jonathan  */
    192   1.1  jonathan 
    193   1.1  jonathan /* ARGSUSED */
    194   1.1  jonathan int
    195  1.35        ad cryptof_read(file_t *fp, off_t *poff,
    196  1.25  christos     struct uio *uio, kauth_cred_t cred, int flags)
    197   1.1  jonathan {
    198  1.42  christos 	return EIO;
    199   1.1  jonathan }
    200   1.1  jonathan 
    201   1.1  jonathan /* ARGSUSED */
    202   1.1  jonathan int
    203  1.35        ad cryptof_write(file_t *fp, off_t *poff,
    204  1.25  christos     struct uio *uio, kauth_cred_t cred, int flags)
    205   1.1  jonathan {
    206  1.42  christos 	return EIO;
    207   1.1  jonathan }
    208   1.1  jonathan 
    209   1.1  jonathan /* ARGSUSED */
    210   1.1  jonathan int
    211  1.36       tls cryptof_ioctl(struct file *fp, u_long cmd, void *data)
    212   1.1  jonathan {
    213  1.35        ad 	struct fcrypt *fcr = fp->f_data;
    214   1.1  jonathan 	struct csession *cse;
    215   1.1  jonathan 	struct session_op *sop;
    216  1.36       tls 	struct session_n_op *snop;
    217   1.1  jonathan 	struct crypt_op *cop;
    218  1.36       tls 	struct crypt_mop *mop;
    219  1.36       tls 	struct crypt_mkop *mkop;
    220  1.36       tls 	struct crypt_n_op *cnop;
    221  1.36       tls 	struct crypt_n_kop *knop;
    222  1.36       tls 	struct crypt_sgop *sgop;
    223  1.36       tls 	struct crypt_sfop *sfop;
    224  1.36       tls 	struct cryptret *crypt_ret;
    225  1.36       tls 	struct crypt_result *crypt_res;
    226   1.1  jonathan 	u_int32_t ses;
    227  1.36       tls 	u_int32_t *sesid;
    228   1.1  jonathan 	int error = 0;
    229  1.36       tls 	size_t count;
    230   1.1  jonathan 
    231  1.29       tls 	/* backwards compatibility */
    232  1.35        ad         file_t *criofp;
    233  1.29       tls 	struct fcrypt *criofcr;
    234  1.29       tls 	int criofd;
    235  1.29       tls 
    236  1.48  christos 	getnanotime(&fcr->atime);
    237  1.48  christos 
    238  1.36       tls 	switch (cmd) {
    239  1.29       tls         case CRIOGET:   /* XXX deprecated, remove after 5.0 */
    240  1.36       tls 		if ((error = fd_allocfile(&criofp, &criofd)) != 0)
    241  1.36       tls 			return error;
    242  1.36       tls 		criofcr = pool_get(&fcrpl, PR_WAITOK);
    243  1.33       tls 		mutex_spin_enter(&crypto_mtx);
    244  1.36       tls 		TAILQ_INIT(&criofcr->csessions);
    245  1.36       tls 		TAILQ_INIT(&criofcr->crp_ret_mq);
    246  1.36       tls 		TAILQ_INIT(&criofcr->crp_ret_mkq);
    247  1.36       tls 		selinit(&criofcr->sinfo);
    248  1.36       tls 
    249  1.29       tls                 /*
    250  1.29       tls                  * Don't ever return session 0, to allow detection of
    251  1.29       tls                  * failed creation attempts with multi-create ioctl.
    252  1.29       tls                  */
    253  1.36       tls 		criofcr->sesn = 1;
    254  1.36       tls 		criofcr->requestid = 1;
    255  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    256  1.36       tls 		(void)fd_clone(criofp, criofd, (FREAD|FWRITE),
    257  1.29       tls 			      &cryptofops, criofcr);
    258  1.36       tls 		*(u_int32_t *)data = criofd;
    259  1.29       tls 		return error;
    260  1.36       tls 		break;
    261   1.1  jonathan 	case CIOCGSESSION:
    262   1.1  jonathan 		sop = (struct session_op *)data;
    263  1.36       tls 		error = cryptodev_session(fcr, sop);
    264  1.36       tls 		break;
    265  1.36       tls 	case CIOCNGSESSION:
    266  1.36       tls 		sgop = (struct crypt_sgop *)data;
    267  1.36       tls 		snop = kmem_alloc((sgop->count *
    268  1.36       tls 				  sizeof(struct session_n_op)), KM_SLEEP);
    269  1.36       tls 		error = copyin(sgop->sessions, snop, sgop->count *
    270  1.36       tls 			       sizeof(struct session_n_op));
    271  1.36       tls 		if (error) {
    272  1.36       tls 			goto mbail;
    273   1.1  jonathan 		}
    274   1.1  jonathan 
    275  1.48  christos 		fcr->mtime = fcr->atime;
    276  1.36       tls 		error = cryptodev_msession(fcr, snop, sgop->count);
    277  1.36       tls 		if (error) {
    278  1.36       tls 			goto mbail;
    279   1.1  jonathan 		}
    280   1.1  jonathan 
    281  1.36       tls 		error = copyout(snop, sgop->sessions, sgop->count *
    282  1.42  christos 		    sizeof(struct session_n_op));
    283  1.36       tls mbail:
    284  1.39       tls 		kmem_free(snop, sgop->count * sizeof(struct session_n_op));
    285   1.1  jonathan 		break;
    286   1.1  jonathan 	case CIOCFSESSION:
    287  1.48  christos 		fcr->mtime = fcr->atime;
    288  1.33       tls 		mutex_spin_enter(&crypto_mtx);
    289   1.1  jonathan 		ses = *(u_int32_t *)data;
    290   1.1  jonathan 		cse = csefind(fcr, ses);
    291   1.1  jonathan 		if (cse == NULL)
    292  1.42  christos 			return EINVAL;
    293   1.1  jonathan 		csedelete(fcr, cse);
    294   1.1  jonathan 		error = csefree(cse);
    295  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    296   1.1  jonathan 		break;
    297  1.36       tls 	case CIOCNFSESSION:
    298  1.48  christos 		fcr->mtime = fcr->atime;
    299  1.36       tls 		sfop = (struct crypt_sfop *)data;
    300  1.36       tls 		sesid = kmem_alloc((sfop->count * sizeof(u_int32_t)),
    301  1.42  christos 		    KM_SLEEP);
    302  1.42  christos 		error = copyin(sfop->sesid, sesid,
    303  1.42  christos 		    (sfop->count * sizeof(u_int32_t)));
    304  1.36       tls 		if (!error) {
    305  1.36       tls 			error = cryptodev_msessionfin(fcr, sfop->count, sesid);
    306  1.36       tls 		}
    307  1.36       tls 		kmem_free(sesid, (sfop->count * sizeof(u_int32_t)));
    308  1.36       tls 		break;
    309   1.1  jonathan 	case CIOCCRYPT:
    310  1.48  christos 		fcr->mtime = fcr->atime;
    311  1.33       tls 		mutex_spin_enter(&crypto_mtx);
    312   1.1  jonathan 		cop = (struct crypt_op *)data;
    313   1.1  jonathan 		cse = csefind(fcr, cop->ses);
    314  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    315  1.18  christos 		if (cse == NULL) {
    316  1.18  christos 			DPRINTF(("csefind failed\n"));
    317  1.42  christos 			return EINVAL;
    318  1.18  christos 		}
    319  1.35        ad 		error = cryptodev_op(cse, cop, curlwp);
    320  1.34       tls 		DPRINTF(("cryptodev_op error = %d\n", error));
    321   1.1  jonathan 		break;
    322  1.36       tls 	case CIOCNCRYPTM:
    323  1.48  christos 		fcr->mtime = fcr->atime;
    324  1.36       tls 		mop = (struct crypt_mop *)data;
    325  1.36       tls 		cnop = kmem_alloc((mop->count * sizeof(struct crypt_n_op)),
    326  1.42  christos 		    KM_SLEEP);
    327  1.42  christos 		error = copyin(mop->reqs, cnop,
    328  1.42  christos 		    (mop->count * sizeof(struct crypt_n_op)));
    329  1.36       tls 		if(!error) {
    330  1.42  christos 			error = cryptodev_mop(fcr, cnop, mop->count, curlwp);
    331  1.36       tls 			if (!error) {
    332  1.36       tls 				error = copyout(cnop, mop->reqs,
    333  1.42  christos 				    (mop->count * sizeof(struct crypt_n_op)));
    334  1.36       tls 			}
    335  1.36       tls 		}
    336  1.36       tls 		kmem_free(cnop, (mop->count * sizeof(struct crypt_n_op)));
    337  1.36       tls 		break;
    338   1.1  jonathan 	case CIOCKEY:
    339   1.1  jonathan 		error = cryptodev_key((struct crypt_kop *)data);
    340  1.34       tls 		DPRINTF(("cryptodev_key error = %d\n", error));
    341   1.1  jonathan 		break;
    342  1.36       tls 	case CIOCNFKEYM:
    343  1.48  christos 		fcr->mtime = fcr->atime;
    344  1.36       tls 		mkop = (struct crypt_mkop *)data;
    345  1.36       tls 		knop = kmem_alloc((mkop->count * sizeof(struct crypt_n_kop)),
    346  1.42  christos 		    KM_SLEEP);
    347  1.36       tls 		error = copyin(mkop->reqs, knop,
    348  1.42  christos 		    (mkop->count * sizeof(struct crypt_n_kop)));
    349  1.36       tls 		if (!error) {
    350  1.36       tls 			error = cryptodev_mkey(fcr, knop, mkop->count);
    351  1.36       tls 			if (!error)
    352  1.36       tls 				error = copyout(knop, mkop->reqs,
    353  1.42  christos 				    (mkop->count * sizeof(struct crypt_n_kop)));
    354  1.36       tls 		}
    355  1.36       tls 		kmem_free(knop, (mkop->count * sizeof(struct crypt_n_kop)));
    356  1.36       tls 		break;
    357   1.1  jonathan 	case CIOCASYMFEAT:
    358   1.1  jonathan 		error = crypto_getfeat((int *)data);
    359   1.1  jonathan 		break;
    360  1.36       tls 	case CIOCNCRYPTRETM:
    361  1.48  christos 		fcr->mtime = fcr->atime;
    362  1.36       tls 		crypt_ret = (struct cryptret *)data;
    363  1.36       tls 		count = crypt_ret->count;
    364  1.42  christos 		crypt_res = kmem_alloc((count * sizeof(struct crypt_result)),
    365  1.42  christos 		    KM_SLEEP);
    366  1.36       tls 		error = copyin(crypt_ret->results, crypt_res,
    367  1.42  christos 		    (count * sizeof(struct crypt_result)));
    368  1.36       tls 		if (error)
    369  1.36       tls 			goto reterr;
    370  1.36       tls 		crypt_ret->count = cryptodev_getmstatus(fcr, crypt_res,
    371  1.42  christos 		    crypt_ret->count);
    372  1.36       tls 		/* sanity check count */
    373  1.36       tls 		if (crypt_ret->count > count) {
    374  1.37    dogcow 			printf("%s.%d: error returned count %zd > original "
    375  1.42  christos 			    " count %zd\n",
    376  1.42  christos 			    __FILE__, __LINE__, crypt_ret->count, count);
    377  1.36       tls 			crypt_ret->count = count;
    378  1.36       tls 
    379  1.36       tls 		}
    380  1.36       tls 		error = copyout(crypt_res, crypt_ret->results,
    381  1.42  christos 		    (crypt_ret->count * sizeof(struct crypt_result)));
    382  1.36       tls reterr:
    383  1.42  christos 		kmem_free(crypt_res, (count * sizeof(struct crypt_result)));
    384  1.36       tls 		break;
    385  1.36       tls 	case CIOCNCRYPTRET:
    386  1.36       tls 		error = cryptodev_getstatus(fcr, (struct crypt_result *)data);
    387  1.36       tls 		break;
    388   1.1  jonathan 	default:
    389  1.46    darran 		/* Check for backward compatible commands */
    390  1.46    darran 		error = ocryptof_ioctl(fp, cmd, data);
    391   1.1  jonathan 	}
    392  1.42  christos 	return error;
    393   1.1  jonathan }
    394   1.1  jonathan 
    395  1.46    darran int
    396  1.25  christos cryptodev_op(struct csession *cse, struct crypt_op *cop, struct lwp *l)
    397   1.1  jonathan {
    398   1.1  jonathan 	struct cryptop *crp = NULL;
    399  1.46    darran 	struct cryptodesc *crde = NULL, *crda = NULL, *crdc = NULL;
    400  1.33       tls 	int error;
    401  1.46    darran 	int iov_len = cop->len;
    402  1.46    darran 	int flags=0;
    403  1.46    darran 	int dst_len;	/* copyout size */
    404   1.1  jonathan 
    405   1.1  jonathan 	if (cop->len > 256*1024-4)
    406  1.42  christos 		return E2BIG;
    407   1.1  jonathan 
    408  1.13  jonathan 	if (cse->txform) {
    409  1.13  jonathan 		if (cop->len == 0 || (cop->len % cse->txform->blocksize) != 0)
    410  1.42  christos 			return EINVAL;
    411  1.13  jonathan 	}
    412   1.1  jonathan 
    413  1.46    darran 	DPRINTF(("cryptodev_op[%d]: iov_len %d\n", (uint32_t)cse->sid, iov_len));
    414  1.46    darran 	if ((cse->tcomp) && cop->dst_len) {
    415  1.46    darran 		if (iov_len < cop->dst_len) {
    416  1.46    darran 			/* Need larger iov to deal with decompress */
    417  1.46    darran 			iov_len = cop->dst_len;
    418  1.46    darran 		}
    419  1.46    darran 		DPRINTF(("cryptodev_op: iov_len -> %d for decompress\n", iov_len));
    420  1.46    darran 	}
    421  1.46    darran 
    422  1.42  christos 	(void)memset(&cse->uio, 0, sizeof(cse->uio));
    423   1.1  jonathan 	cse->uio.uio_iovcnt = 1;
    424   1.1  jonathan 	cse->uio.uio_resid = 0;
    425   1.1  jonathan 	cse->uio.uio_rw = UIO_WRITE;
    426   1.1  jonathan 	cse->uio.uio_iov = cse->iovec;
    427  1.17      yamt 	UIO_SETUP_SYSSPACE(&cse->uio);
    428  1.29       tls 	memset(&cse->iovec, 0, sizeof(cse->iovec));
    429  1.46    darran 
    430  1.46    darran 	/* the iov needs to be big enough to handle the uncompressed
    431  1.46    darran 	 * data.... */
    432  1.46    darran 	cse->uio.uio_iov[0].iov_len = iov_len;
    433  1.46    darran 	cse->uio.uio_iov[0].iov_base = kmem_alloc(iov_len, KM_SLEEP);
    434  1.29       tls 	cse->uio.uio_resid = cse->uio.uio_iov[0].iov_len;
    435  1.46    darran 	DPRINTF(("cryptodev_op[%d]: uio.iov_base %p malloced %d bytes\n",
    436  1.46    darran 		(uint32_t)cse->sid, cse->uio.uio_iov[0].iov_base, iov_len));
    437   1.1  jonathan 
    438  1.46    darran 	crp = crypto_getreq((cse->tcomp != NULL) + (cse->txform != NULL) + (cse->thash != NULL));
    439   1.1  jonathan 	if (crp == NULL) {
    440   1.1  jonathan 		error = ENOMEM;
    441   1.1  jonathan 		goto bail;
    442   1.1  jonathan 	}
    443  1.46    darran 	DPRINTF(("cryptodev_op[%d]: crp %p\n", (uint32_t)cse->sid, crp));
    444  1.46    darran 
    445  1.46    darran 	/* crds are always ordered tcomp, thash, then txform */
    446  1.46    darran 	/* with optional missing links */
    447  1.46    darran 
    448  1.46    darran 	/* XXX: If we're going to compress then hash or encrypt, we need
    449  1.46    darran 	 * to be able to pass on the new size of the data.
    450  1.46    darran 	 */
    451  1.46    darran 
    452  1.46    darran 	if (cse->tcomp) {
    453  1.46    darran 		crdc = crp->crp_desc;
    454  1.46    darran 	}
    455   1.1  jonathan 
    456   1.1  jonathan 	if (cse->thash) {
    457  1.46    darran 		crda = crdc ? crdc->crd_next : crp->crp_desc;
    458  1.44  christos 		if (cse->txform && crda)
    459   1.1  jonathan 			crde = crda->crd_next;
    460   1.1  jonathan 	} else {
    461  1.46    darran 		if (cse->txform) {
    462  1.46    darran 			crde = crdc ? crdc->crd_next : crp->crp_desc;
    463  1.46    darran 		} else if (!cse->tcomp) {
    464   1.1  jonathan 			error = EINVAL;
    465   1.1  jonathan 			goto bail;
    466   1.1  jonathan 		}
    467   1.1  jonathan 	}
    468   1.1  jonathan 
    469  1.46    darran 	DPRINTF(("ocf[%d]: iov_len %d, cop->len %d\n",
    470  1.46    darran 			(uint32_t)cse->sid,
    471  1.46    darran 			cse->uio.uio_iov[0].iov_len,
    472  1.46    darran 			cop->len));
    473  1.46    darran 
    474   1.1  jonathan 	if ((error = copyin(cop->src, cse->uio.uio_iov[0].iov_base, cop->len)))
    475  1.36       tls 	{
    476  1.36       tls 		printf("copyin failed %s %d \n", (char *)cop->src, error);
    477   1.1  jonathan 		goto bail;
    478  1.36       tls 	}
    479   1.1  jonathan 
    480  1.46    darran 	if (crdc) {
    481  1.46    darran 		switch (cop->op) {
    482  1.46    darran 		case COP_COMP:
    483  1.46    darran 			crdc->crd_flags |= CRD_F_COMP;
    484  1.46    darran 			break;
    485  1.46    darran 		case COP_DECOMP:
    486  1.46    darran 			crdc->crd_flags &= ~CRD_F_COMP;
    487  1.46    darran 			break;
    488  1.46    darran 		default:
    489  1.46    darran 			break;
    490  1.46    darran 		}
    491  1.46    darran 		/* more data to follow? */
    492  1.46    darran 		if (cop->flags & COP_F_MORE) {
    493  1.46    darran 			flags |= CRYPTO_F_MORE;
    494  1.46    darran 		}
    495  1.46    darran 		crdc->crd_len = cop->len;
    496  1.46    darran 		crdc->crd_inject = 0;
    497  1.46    darran 
    498  1.46    darran 		crdc->crd_alg = cse->comp_alg;
    499  1.46    darran 		crdc->crd_key = NULL;
    500  1.46    darran 		crdc->crd_klen = 0;
    501  1.46    darran 		DPRINTF(("cryptodev_op[%d]: crdc setup for comp_alg %d.\n",
    502  1.46    darran 					(uint32_t)cse->sid, crdc->crd_alg));
    503  1.46    darran 	}
    504  1.46    darran 
    505   1.1  jonathan 	if (crda) {
    506   1.1  jonathan 		crda->crd_skip = 0;
    507   1.1  jonathan 		crda->crd_len = cop->len;
    508   1.1  jonathan 		crda->crd_inject = 0;	/* ??? */
    509   1.1  jonathan 
    510   1.1  jonathan 		crda->crd_alg = cse->mac;
    511   1.1  jonathan 		crda->crd_key = cse->mackey;
    512   1.1  jonathan 		crda->crd_klen = cse->mackeylen * 8;
    513  1.46    darran 		DPRINTF(("cryptodev_op: crda setup for mac %d.\n", crda->crd_alg));
    514   1.1  jonathan 	}
    515   1.1  jonathan 
    516   1.1  jonathan 	if (crde) {
    517  1.46    darran 		switch (cop->op) {
    518  1.46    darran 		case COP_ENCRYPT:
    519   1.1  jonathan 			crde->crd_flags |= CRD_F_ENCRYPT;
    520  1.46    darran 			break;
    521  1.46    darran 		case COP_DECRYPT:
    522   1.1  jonathan 			crde->crd_flags &= ~CRD_F_ENCRYPT;
    523  1.46    darran 			break;
    524  1.46    darran 		default:
    525  1.46    darran 			break;
    526  1.46    darran 		}
    527   1.1  jonathan 		crde->crd_len = cop->len;
    528   1.1  jonathan 		crde->crd_inject = 0;
    529   1.1  jonathan 
    530   1.1  jonathan 		crde->crd_alg = cse->cipher;
    531   1.1  jonathan 		crde->crd_key = cse->key;
    532   1.1  jonathan 		crde->crd_klen = cse->keylen * 8;
    533  1.46    darran 		DPRINTF(("cryptodev_op: crde setup for cipher %d.\n", crde->crd_alg));
    534   1.1  jonathan 	}
    535   1.1  jonathan 
    536  1.46    darran 
    537   1.1  jonathan 	crp->crp_ilen = cop->len;
    538  1.45    darran 	/* The reqest is flagged as CRYPTO_F_USER as long as it is running
    539  1.45    darran 	 * in the user IOCTL thread.  This flag lets us skip using the retq for
    540  1.45    darran 	 * the request if it completes immediately. If the request ends up being
    541  1.45    darran 	 * delayed or is not completed immediately the flag is removed.
    542  1.45    darran 	 */
    543  1.46    darran 	crp->crp_flags = CRYPTO_F_IOV | (cop->flags & COP_F_BATCH) | CRYPTO_F_USER |
    544  1.46    darran 			flags;
    545  1.26  christos 	crp->crp_buf = (void *)&cse->uio;
    546   1.1  jonathan 	crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
    547   1.1  jonathan 	crp->crp_sid = cse->sid;
    548   1.1  jonathan 	crp->crp_opaque = (void *)cse;
    549   1.1  jonathan 
    550   1.1  jonathan 	if (cop->iv) {
    551   1.1  jonathan 		if (crde == NULL) {
    552   1.1  jonathan 			error = EINVAL;
    553   1.1  jonathan 			goto bail;
    554   1.1  jonathan 		}
    555   1.1  jonathan 		if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
    556   1.1  jonathan 			error = EINVAL;
    557   1.1  jonathan 			goto bail;
    558   1.1  jonathan 		}
    559  1.36       tls 		if ((error = copyin(cop->iv, cse->tmp_iv,
    560  1.42  christos 		    cse->txform->blocksize)))
    561   1.1  jonathan 			goto bail;
    562  1.42  christos 		(void)memcpy(crde->crd_iv, cse->tmp_iv, cse->txform->blocksize);
    563   1.1  jonathan 		crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
    564   1.1  jonathan 		crde->crd_skip = 0;
    565   1.1  jonathan 	} else if (crde) {
    566  1.20  christos 		if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
    567  1.20  christos 			crde->crd_skip = 0;
    568  1.20  christos 		} else {
    569  1.20  christos 			crde->crd_flags |= CRD_F_IV_PRESENT;
    570  1.20  christos 			crde->crd_skip = cse->txform->blocksize;
    571  1.20  christos 			crde->crd_len -= cse->txform->blocksize;
    572  1.20  christos 		}
    573   1.1  jonathan 	}
    574   1.1  jonathan 
    575   1.1  jonathan 	if (cop->mac) {
    576   1.1  jonathan 		if (crda == NULL) {
    577   1.1  jonathan 			error = EINVAL;
    578   1.1  jonathan 			goto bail;
    579   1.1  jonathan 		}
    580   1.1  jonathan 		crp->crp_mac=cse->tmp_mac;
    581   1.1  jonathan 	}
    582   1.1  jonathan 
    583  1.33       tls 	/*
    584  1.33       tls 	 * XXX there was a comment here which said that we went to
    585  1.33       tls 	 * XXX splcrypto() but needed to only if CRYPTO_F_CBIMM,
    586  1.33       tls 	 * XXX disabled on NetBSD since 1.6O due to a race condition.
    587  1.33       tls 	 * XXX But crypto_dispatch went to splcrypto() itself!  (And
    588  1.33       tls 	 * XXX now takes the crypto_mtx mutex itself).  We do, however,
    589  1.46    darran 	 *
    590  1.33       tls 	 * XXX need to hold the mutex across the call to cv_wait().
    591  1.33       tls 	 * XXX     (should we arrange for crypto_dispatch to return to
    592  1.33       tls 	 * XXX      us with it held?  it seems quite ugly to do so.)
    593  1.33       tls 	 */
    594  1.36       tls #ifdef notyet
    595  1.36       tls eagain:
    596  1.36       tls #endif
    597   1.1  jonathan 	error = crypto_dispatch(crp);
    598  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    599  1.36       tls 
    600  1.45    darran 	/*
    601  1.45    darran 	 * If the request was going to be completed by the
    602  1.45    darran 	 * ioctl thread then it would have been done by now.
    603  1.45    darran 	 * Remove the F_USER flag it so crypto_done() is not confused
    604  1.45    darran 	 * if the crypto device calls it after this point.
    605  1.45    darran 	 */
    606  1.45    darran 	crp->crp_flags &= ~(CRYPTO_F_USER);
    607  1.45    darran 
    608  1.36       tls 	switch (error) {
    609  1.36       tls #ifdef notyet	/* don't loop forever -- but EAGAIN not possible here yet */
    610  1.36       tls 	case EAGAIN:
    611  1.36       tls 		mutex_spin_exit(&crypto_mtx);
    612  1.36       tls 		goto eagain;
    613  1.36       tls 		break;
    614  1.36       tls #endif
    615  1.36       tls 	case 0:
    616  1.36       tls 		break;
    617  1.36       tls 	default:
    618  1.33       tls 		DPRINTF(("cryptodev_op: not waiting, error.\n"));
    619  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    620   1.1  jonathan 		goto bail;
    621   1.1  jonathan 	}
    622  1.45    darran 
    623  1.33       tls 	while (!(crp->crp_flags & CRYPTO_F_DONE)) {
    624  1.46    darran 		DPRINTF(("cryptodev_op[%d]: sleeping on cv %08x for crp %08x\n",
    625  1.46    darran 			(uint32_t)cse->sid, (uint32_t)&crp->crp_cv,
    626  1.46    darran 			(uint32_t)crp));
    627  1.33       tls 		cv_wait(&crp->crp_cv, &crypto_mtx);	/* XXX cv_wait_sig? */
    628  1.33       tls 	}
    629  1.33       tls 	if (crp->crp_flags & CRYPTO_F_ONRETQ) {
    630  1.45    darran 		/* XXX this should never happen now with the CRYPTO_F_USER flag
    631  1.45    darran 		 * changes.
    632  1.45    darran 		 */
    633  1.33       tls 		DPRINTF(("cryptodev_op: DONE, not woken by cryptoret.\n"));
    634  1.33       tls 		(void)crypto_ret_q_remove(crp);
    635  1.33       tls 	}
    636  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    637   1.1  jonathan 
    638   1.1  jonathan 	if (crp->crp_etype != 0) {
    639  1.34       tls 		DPRINTF(("cryptodev_op: crp_etype %d\n", crp->crp_etype));
    640   1.1  jonathan 		error = crp->crp_etype;
    641   1.1  jonathan 		goto bail;
    642   1.1  jonathan 	}
    643   1.1  jonathan 
    644   1.1  jonathan 	if (cse->error) {
    645  1.34       tls 		DPRINTF(("cryptodev_op: cse->error %d\n", cse->error));
    646   1.1  jonathan 		error = cse->error;
    647   1.1  jonathan 		goto bail;
    648   1.1  jonathan 	}
    649   1.1  jonathan 
    650  1.46    darran 	dst_len = crp->crp_ilen;
    651  1.46    darran 	/* let the user know how much data was returned */
    652  1.46    darran 	if (crp->crp_olen) {
    653  1.46    darran 		dst_len = cop->dst_len = crp->crp_olen;
    654  1.46    darran 	}
    655  1.46    darran 	crp->len = dst_len;
    656  1.46    darran 
    657  1.46    darran 	if (cop->dst) {
    658  1.46    darran 		DPRINTF(("cryptodev_op: copyout %d bytes to %p\n", dst_len, cop->dst));
    659  1.46    darran 	}
    660   1.1  jonathan 	if (cop->dst &&
    661  1.46    darran 	    (error = copyout(cse->uio.uio_iov[0].iov_base, cop->dst, dst_len)))
    662  1.36       tls 	{
    663  1.34       tls 		DPRINTF(("cryptodev_op: copyout error %d\n", error));
    664   1.1  jonathan 		goto bail;
    665  1.34       tls 	}
    666   1.1  jonathan 
    667   1.1  jonathan 	if (cop->mac &&
    668  1.34       tls 	    (error = copyout(crp->crp_mac, cop->mac, cse->thash->authsize))) {
    669  1.34       tls 		DPRINTF(("cryptodev_op: mac copyout error %d\n", error));
    670   1.1  jonathan 		goto bail;
    671  1.34       tls 	}
    672   1.1  jonathan 
    673  1.46    darran 
    674   1.1  jonathan bail:
    675  1.45    darran 	if (crp) {
    676   1.1  jonathan 		crypto_freereq(crp);
    677  1.45    darran 	}
    678  1.46    darran 	if (cse->uio.uio_iov[0].iov_base) {
    679  1.46    darran 		kmem_free(cse->uio.uio_iov[0].iov_base,iov_len);
    680  1.46    darran 	}
    681   1.1  jonathan 
    682  1.42  christos 	return error;
    683   1.1  jonathan }
    684   1.1  jonathan 
    685   1.1  jonathan static int
    686   1.1  jonathan cryptodev_cb(void *op)
    687   1.1  jonathan {
    688   1.1  jonathan 	struct cryptop *crp = (struct cryptop *) op;
    689   1.1  jonathan 	struct csession *cse = (struct csession *)crp->crp_opaque;
    690  1.33       tls 	int error = 0;
    691   1.1  jonathan 
    692  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    693   1.1  jonathan 	cse->error = crp->crp_etype;
    694  1.33       tls 	if (crp->crp_etype == EAGAIN) {
    695  1.33       tls 		/* always drop mutex to call dispatch routine */
    696  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    697  1.33       tls 		error = crypto_dispatch(crp);
    698  1.33       tls 		mutex_spin_enter(&crypto_mtx);
    699  1.33       tls 	}
    700  1.33       tls 	if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
    701  1.33       tls 		cv_signal(&crp->crp_cv);
    702  1.33       tls 	}
    703  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    704  1.42  christos 	return 0;
    705   1.1  jonathan }
    706   1.1  jonathan 
    707   1.1  jonathan static int
    708  1.36       tls cryptodev_mcb(void *op)
    709  1.36       tls {
    710  1.36       tls 	struct cryptop *crp = (struct cryptop *) op;
    711  1.36       tls 	struct csession *cse = (struct csession *)crp->crp_opaque;
    712  1.36       tls 	int  error=0;
    713  1.36       tls 
    714  1.36       tls 	mutex_spin_enter(&crypto_mtx);
    715  1.36       tls 	cse->error = crp->crp_etype;
    716  1.36       tls 	if (crp->crp_etype == EAGAIN) {
    717  1.36       tls 		mutex_spin_exit(&crypto_mtx);
    718  1.36       tls 		error = crypto_dispatch(crp);
    719  1.36       tls 		mutex_spin_enter(&crypto_mtx);
    720  1.36       tls 	}
    721  1.36       tls 	if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
    722  1.36       tls 		cv_signal(&crp->crp_cv);
    723  1.36       tls 	}
    724  1.36       tls 
    725  1.36       tls 	TAILQ_INSERT_TAIL(&crp->fcrp->crp_ret_mq, crp, crp_next);
    726  1.38     rmind 	selnotify(&crp->fcrp->sinfo, 0, 0);
    727  1.36       tls 	mutex_spin_exit(&crypto_mtx);
    728  1.42  christos 	return 0;
    729  1.36       tls }
    730  1.36       tls 
    731  1.36       tls static int
    732   1.1  jonathan cryptodevkey_cb(void *op)
    733   1.1  jonathan {
    734  1.42  christos 	struct cryptkop *krp = op;
    735  1.36       tls 
    736  1.36       tls 	mutex_spin_enter(&crypto_mtx);
    737  1.36       tls 	cv_signal(&krp->krp_cv);
    738  1.36       tls 	mutex_spin_exit(&crypto_mtx);
    739  1.42  christos 	return 0;
    740  1.36       tls }
    741  1.36       tls 
    742  1.36       tls static int
    743  1.36       tls cryptodevkey_mcb(void *op)
    744  1.36       tls {
    745  1.42  christos 	struct cryptkop *krp = op;
    746   1.1  jonathan 
    747  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    748  1.33       tls 	cv_signal(&krp->krp_cv);
    749  1.36       tls 	TAILQ_INSERT_TAIL(&krp->fcrp->crp_ret_mkq, krp, krp_next);
    750  1.38     rmind 	selnotify(&krp->fcrp->sinfo, 0, 0);
    751  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    752  1.42  christos 	return 0;
    753   1.1  jonathan }
    754   1.1  jonathan 
    755   1.1  jonathan static int
    756   1.1  jonathan cryptodev_key(struct crypt_kop *kop)
    757   1.1  jonathan {
    758   1.1  jonathan 	struct cryptkop *krp = NULL;
    759   1.1  jonathan 	int error = EINVAL;
    760   1.1  jonathan 	int in, out, size, i;
    761   1.1  jonathan 
    762  1.42  christos 	if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM)
    763  1.42  christos 		return EFBIG;
    764   1.1  jonathan 
    765   1.1  jonathan 	in = kop->crk_iparams;
    766   1.1  jonathan 	out = kop->crk_oparams;
    767   1.1  jonathan 	switch (kop->crk_op) {
    768   1.1  jonathan 	case CRK_MOD_EXP:
    769   1.1  jonathan 		if (in == 3 && out == 1)
    770   1.1  jonathan 			break;
    771  1.42  christos 		return EINVAL;
    772   1.1  jonathan 	case CRK_MOD_EXP_CRT:
    773   1.1  jonathan 		if (in == 6 && out == 1)
    774   1.1  jonathan 			break;
    775  1.42  christos 		return EINVAL;
    776   1.1  jonathan 	case CRK_DSA_SIGN:
    777   1.1  jonathan 		if (in == 5 && out == 2)
    778   1.1  jonathan 			break;
    779  1.42  christos 		return EINVAL;
    780   1.1  jonathan 	case CRK_DSA_VERIFY:
    781   1.1  jonathan 		if (in == 7 && out == 0)
    782   1.1  jonathan 			break;
    783  1.42  christos 		return EINVAL;
    784   1.1  jonathan 	case CRK_DH_COMPUTE_KEY:
    785   1.1  jonathan 		if (in == 3 && out == 1)
    786   1.1  jonathan 			break;
    787  1.42  christos 		return EINVAL;
    788  1.27       tls 	case CRK_MOD_ADD:
    789  1.27       tls 		if (in == 3 && out == 1)
    790  1.27       tls 			break;
    791  1.42  christos 		return EINVAL;
    792  1.27       tls 	case CRK_MOD_ADDINV:
    793  1.27       tls 		if (in == 2 && out == 1)
    794  1.27       tls 			break;
    795  1.42  christos 		return EINVAL;
    796  1.27       tls 	case CRK_MOD_SUB:
    797  1.27       tls 		if (in == 3 && out == 1)
    798  1.27       tls 			break;
    799  1.42  christos 		return EINVAL;
    800  1.27       tls 	case CRK_MOD_MULT:
    801  1.27       tls 		if (in == 3 && out == 1)
    802  1.27       tls 			break;
    803  1.42  christos 		return EINVAL;
    804  1.27       tls 	case CRK_MOD_MULTINV:
    805  1.27       tls 		if (in == 2 && out == 1)
    806  1.27       tls 			break;
    807  1.42  christos 		return EINVAL;
    808  1.27       tls 	case CRK_MOD:
    809  1.27       tls 		if (in == 2 && out == 1)
    810  1.27       tls 			break;
    811  1.42  christos 		return EINVAL;
    812   1.1  jonathan 	default:
    813  1.42  christos 		return EINVAL;
    814   1.1  jonathan 	}
    815   1.1  jonathan 
    816  1.33       tls 	krp = pool_get(&cryptkop_pool, PR_WAITOK);
    817  1.42  christos 	(void)memset(krp, 0, sizeof *krp);
    818  1.33       tls 	cv_init(&krp->krp_cv, "crykdev");
    819   1.1  jonathan 	krp->krp_op = kop->crk_op;
    820   1.1  jonathan 	krp->krp_status = kop->crk_status;
    821   1.1  jonathan 	krp->krp_iparams = kop->crk_iparams;
    822   1.1  jonathan 	krp->krp_oparams = kop->crk_oparams;
    823   1.1  jonathan 	krp->krp_status = 0;
    824   1.1  jonathan 	krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
    825   1.1  jonathan 
    826   1.1  jonathan 	for (i = 0; i < CRK_MAXPARAM; i++)
    827   1.1  jonathan 		krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
    828   1.1  jonathan 	for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
    829   1.1  jonathan 		size = (krp->krp_param[i].crp_nbits + 7) / 8;
    830   1.1  jonathan 		if (size == 0)
    831   1.1  jonathan 			continue;
    832  1.36       tls 		krp->krp_param[i].crp_p = kmem_alloc(size, KM_SLEEP);
    833   1.1  jonathan 		if (i >= krp->krp_iparams)
    834   1.1  jonathan 			continue;
    835  1.42  christos 		error = copyin(kop->crk_param[i].crp_p,
    836  1.42  christos 		    krp->krp_param[i].crp_p, size);
    837   1.1  jonathan 		if (error)
    838   1.1  jonathan 			goto fail;
    839   1.1  jonathan 	}
    840   1.1  jonathan 
    841   1.1  jonathan 	error = crypto_kdispatch(krp);
    842  1.33       tls 	if (error != 0) {
    843   1.1  jonathan 		goto fail;
    844  1.33       tls 	}
    845  1.33       tls 
    846  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    847  1.33       tls 	while (!(krp->krp_flags & CRYPTO_F_DONE)) {
    848  1.33       tls 		cv_wait(&krp->krp_cv, &crypto_mtx);	/* XXX cv_wait_sig? */
    849  1.33       tls 	}
    850  1.33       tls 	if (krp->krp_flags & CRYPTO_F_ONRETQ) {
    851  1.33       tls 		DPRINTF(("cryptodev_key: DONE early, not via cryptoret.\n"));
    852  1.33       tls 		(void)crypto_ret_kq_remove(krp);
    853  1.33       tls 	}
    854  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    855   1.1  jonathan 
    856   1.1  jonathan 	if (krp->krp_status != 0) {
    857  1.42  christos 		DPRINTF(("cryptodev_key: krp->krp_status 0x%08x\n",
    858  1.42  christos 		    krp->krp_status));
    859   1.1  jonathan 		error = krp->krp_status;
    860   1.1  jonathan 		goto fail;
    861   1.1  jonathan 	}
    862   1.1  jonathan 
    863  1.42  christos 	for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams;
    864  1.42  christos 	    i++) {
    865   1.1  jonathan 		size = (krp->krp_param[i].crp_nbits + 7) / 8;
    866   1.1  jonathan 		if (size == 0)
    867   1.1  jonathan 			continue;
    868  1.42  christos 		error = copyout(krp->krp_param[i].crp_p,
    869  1.42  christos 		    kop->crk_param[i].crp_p, size);
    870  1.34       tls 		if (error) {
    871  1.42  christos 			DPRINTF(("cryptodev_key: copyout oparam %d failed, "
    872  1.42  christos 			    "error=%d\n", i-krp->krp_iparams, error));
    873   1.1  jonathan 			goto fail;
    874  1.34       tls 		}
    875   1.1  jonathan 	}
    876   1.1  jonathan 
    877   1.1  jonathan fail:
    878  1.43  christos 	kop->crk_status = krp->krp_status;
    879  1.43  christos 	for (i = 0; i < CRK_MAXPARAM; i++) {
    880  1.43  christos 		struct crparam *kp = &(krp->krp_param[i]);
    881  1.43  christos 		if (krp->krp_param[i].crp_p) {
    882  1.43  christos 			size = (kp->crp_nbits + 7)  / 8;
    883  1.43  christos 			KASSERT(size > 0);
    884  1.43  christos 			(void)memset(kp->crp_p, 0, size);
    885  1.43  christos 			kmem_free(kp->crp_p, size);
    886   1.1  jonathan 		}
    887   1.1  jonathan 	}
    888  1.45    darran 	cv_destroy(&krp->krp_cv);
    889  1.43  christos 	pool_put(&cryptkop_pool, krp);
    890  1.34       tls 	DPRINTF(("cryptodev_key: error=0x%08x\n", error));
    891  1.42  christos 	return error;
    892   1.1  jonathan }
    893   1.1  jonathan 
    894   1.1  jonathan /* ARGSUSED */
    895   1.1  jonathan static int
    896  1.36       tls cryptof_close(struct file *fp)
    897   1.1  jonathan {
    898  1.35        ad 	struct fcrypt *fcr = fp->f_data;
    899   1.1  jonathan 	struct csession *cse;
    900   1.1  jonathan 
    901  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    902   1.1  jonathan 	while ((cse = TAILQ_FIRST(&fcr->csessions))) {
    903   1.1  jonathan 		TAILQ_REMOVE(&fcr->csessions, cse, next);
    904   1.1  jonathan 		(void)csefree(cse);
    905   1.1  jonathan 	}
    906  1.36       tls 	seldestroy(&fcr->sinfo);
    907   1.1  jonathan 	fp->f_data = NULL;
    908  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    909   1.1  jonathan 
    910  1.38     rmind 	pool_put(&fcrpl, fcr);
    911   1.1  jonathan 	return 0;
    912   1.1  jonathan }
    913   1.1  jonathan 
    914  1.46    darran /* needed for compatibility module */
    915  1.46    darran struct	csession *cryptodev_csefind(struct fcrypt *fcr, u_int ses)
    916  1.46    darran {
    917  1.46    darran 	return csefind(fcr, ses);
    918  1.46    darran }
    919  1.46    darran 
    920  1.33       tls /* csefind: call with crypto_mtx held. */
    921   1.1  jonathan static struct csession *
    922   1.1  jonathan csefind(struct fcrypt *fcr, u_int ses)
    923   1.1  jonathan {
    924  1.45    darran 	struct csession *cse, *cnext, *ret = NULL;
    925   1.1  jonathan 
    926  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    927  1.45    darran 	TAILQ_FOREACH_SAFE(cse, &fcr->csessions, next, cnext)
    928   1.1  jonathan 		if (cse->ses == ses)
    929  1.33       tls 			ret = cse;
    930  1.36       tls 
    931  1.42  christos 	return ret;
    932   1.1  jonathan }
    933   1.1  jonathan 
    934  1.33       tls /* csedelete: call with crypto_mtx held. */
    935   1.1  jonathan static int
    936   1.1  jonathan csedelete(struct fcrypt *fcr, struct csession *cse_del)
    937   1.1  jonathan {
    938  1.45    darran 	struct csession *cse, *cnext;
    939  1.33       tls 	int ret = 0;
    940   1.1  jonathan 
    941  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    942  1.45    darran 	TAILQ_FOREACH_SAFE(cse, &fcr->csessions, next, cnext) {
    943   1.1  jonathan 		if (cse == cse_del) {
    944   1.1  jonathan 			TAILQ_REMOVE(&fcr->csessions, cse, next);
    945  1.33       tls 			ret = 1;
    946   1.1  jonathan 		}
    947   1.1  jonathan 	}
    948  1.42  christos 	return ret;
    949   1.1  jonathan }
    950   1.1  jonathan 
    951  1.33       tls /* cseadd: call with crypto_mtx held. */
    952   1.1  jonathan static struct csession *
    953   1.1  jonathan cseadd(struct fcrypt *fcr, struct csession *cse)
    954   1.1  jonathan {
    955  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    956  1.33       tls 	/* don't let session ID wrap! */
    957  1.33       tls 	if (fcr->sesn + 1 == 0) return NULL;
    958   1.1  jonathan 	TAILQ_INSERT_TAIL(&fcr->csessions, cse, next);
    959   1.1  jonathan 	cse->ses = fcr->sesn++;
    960  1.42  christos 	return cse;
    961   1.1  jonathan }
    962   1.1  jonathan 
    963  1.33       tls /* csecreate: call with crypto_mtx held. */
    964   1.1  jonathan static struct csession *
    965  1.26  christos csecreate(struct fcrypt *fcr, u_int64_t sid, void *key, u_int64_t keylen,
    966  1.26  christos     void *mackey, u_int64_t mackeylen, u_int32_t cipher, u_int32_t mac,
    967  1.46    darran     u_int32_t comp_alg, struct enc_xform *txform, struct auth_hash *thash,
    968  1.46    darran     struct comp_algo *tcomp)
    969   1.1  jonathan {
    970   1.1  jonathan 	struct csession *cse;
    971   1.1  jonathan 
    972  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    973  1.29       tls 	cse = pool_get(&csepl, PR_NOWAIT);
    974   1.1  jonathan 	if (cse == NULL)
    975   1.1  jonathan 		return NULL;
    976   1.1  jonathan 	cse->key = key;
    977   1.1  jonathan 	cse->keylen = keylen/8;
    978   1.1  jonathan 	cse->mackey = mackey;
    979   1.1  jonathan 	cse->mackeylen = mackeylen/8;
    980   1.1  jonathan 	cse->sid = sid;
    981   1.1  jonathan 	cse->cipher = cipher;
    982   1.1  jonathan 	cse->mac = mac;
    983  1.46    darran 	cse->comp_alg = comp_alg;
    984   1.1  jonathan 	cse->txform = txform;
    985   1.1  jonathan 	cse->thash = thash;
    986  1.46    darran 	cse->tcomp = tcomp;
    987  1.34       tls 	cse->error = 0;
    988  1.28       tls 	if (cseadd(fcr, cse))
    989  1.42  christos 		return cse;
    990  1.28       tls 	else {
    991  1.33       tls 		pool_put(&csepl, cse);
    992  1.28       tls 		return NULL;
    993  1.28       tls 	}
    994   1.1  jonathan }
    995   1.1  jonathan 
    996  1.33       tls /* csefree: call with crypto_mtx held. */
    997   1.1  jonathan static int
    998   1.1  jonathan csefree(struct csession *cse)
    999   1.1  jonathan {
   1000   1.1  jonathan 	int error;
   1001   1.1  jonathan 
   1002  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
   1003   1.1  jonathan 	error = crypto_freesession(cse->sid);
   1004   1.1  jonathan 	if (cse->key)
   1005  1.36       tls 		free(cse->key, M_XDATA);
   1006   1.1  jonathan 	if (cse->mackey)
   1007  1.36       tls 		free(cse->mackey, M_XDATA);
   1008  1.29       tls 	pool_put(&csepl, cse);
   1009  1.42  christos 	return error;
   1010   1.1  jonathan }
   1011   1.1  jonathan 
   1012   1.1  jonathan static int
   1013  1.25  christos cryptoopen(dev_t dev, int flag, int mode,
   1014  1.25  christos     struct lwp *l)
   1015   1.1  jonathan {
   1016  1.35        ad 	file_t *fp;
   1017  1.29       tls         struct fcrypt *fcr;
   1018  1.29       tls         int fd, error;
   1019  1.29       tls 
   1020   1.1  jonathan 	if (crypto_usercrypto == 0)
   1021  1.42  christos 		return ENXIO;
   1022  1.29       tls 
   1023  1.35        ad 	if ((error = fd_allocfile(&fp, &fd)) != 0)
   1024  1.29       tls 		return error;
   1025  1.29       tls 
   1026  1.29       tls 	fcr = pool_get(&fcrpl, PR_WAITOK);
   1027  1.48  christos 	getnanotime(&fcr->btime);
   1028  1.48  christos 	fcr->atime = fcr->mtime = fcr->btime;
   1029  1.33       tls 	mutex_spin_enter(&crypto_mtx);
   1030  1.29       tls 	TAILQ_INIT(&fcr->csessions);
   1031  1.36       tls 	TAILQ_INIT(&fcr->crp_ret_mq);
   1032  1.36       tls 	TAILQ_INIT(&fcr->crp_ret_mkq);
   1033  1.36       tls 	selinit(&fcr->sinfo);
   1034  1.29       tls 	/*
   1035  1.29       tls 	 * Don't ever return session 0, to allow detection of
   1036  1.29       tls 	 * failed creation attempts with multi-create ioctl.
   1037  1.29       tls 	 */
   1038  1.29       tls 	fcr->sesn = 1;
   1039  1.36       tls 	fcr->requestid = 1;
   1040  1.33       tls 	mutex_spin_exit(&crypto_mtx);
   1041  1.35        ad 	return fd_clone(fp, fd, flag, &cryptofops, fcr);
   1042   1.1  jonathan }
   1043   1.1  jonathan 
   1044   1.1  jonathan static int
   1045  1.25  christos cryptoread(dev_t dev, struct uio *uio, int ioflag)
   1046   1.1  jonathan {
   1047  1.42  christos 	return EIO;
   1048   1.1  jonathan }
   1049   1.1  jonathan 
   1050   1.1  jonathan static int
   1051  1.25  christos cryptowrite(dev_t dev, struct uio *uio, int ioflag)
   1052   1.1  jonathan {
   1053  1.42  christos 	return EIO;
   1054   1.1  jonathan }
   1055   1.1  jonathan 
   1056   1.1  jonathan int
   1057  1.25  christos cryptoselect(dev_t dev, int rw, struct lwp *l)
   1058   1.1  jonathan {
   1059  1.42  christos 	return 0;
   1060   1.1  jonathan }
   1061   1.1  jonathan 
   1062   1.1  jonathan /*static*/
   1063   1.1  jonathan struct cdevsw crypto_cdevsw = {
   1064   1.1  jonathan 	/* open */	cryptoopen,
   1065  1.29       tls 	/* close */	noclose,
   1066   1.1  jonathan 	/* read */	cryptoread,
   1067   1.1  jonathan 	/* write */	cryptowrite,
   1068  1.29       tls 	/* ioctl */	noioctl,
   1069   1.1  jonathan 	/* ttstop?*/	nostop,
   1070   1.1  jonathan 	/* ??*/		notty,
   1071   1.1  jonathan 	/* poll */	cryptoselect /*nopoll*/,
   1072   1.1  jonathan 	/* mmap */	nommap,
   1073   1.1  jonathan 	/* kqfilter */	nokqfilter,
   1074  1.23  christos 	/* type */	D_OTHER,
   1075   1.1  jonathan };
   1076   1.1  jonathan 
   1077  1.46    darran int
   1078  1.36       tls cryptodev_mop(struct fcrypt *fcr,
   1079  1.36       tls               struct crypt_n_op * cnop,
   1080  1.36       tls               int count, struct lwp *l)
   1081  1.36       tls {
   1082  1.36       tls 	struct cryptop *crp = NULL;
   1083  1.46    darran 	struct cryptodesc *crde = NULL, *crda = NULL, *crdc = NULL;
   1084  1.36       tls 	int req, error=0;
   1085  1.36       tls 	struct csession *cse;
   1086  1.46    darran 	int flags=0;
   1087  1.46    darran 	int iov_len;
   1088  1.36       tls 
   1089  1.36       tls 	for (req = 0; req < count; req++) {
   1090  1.36       tls 		mutex_spin_enter(&crypto_mtx);
   1091  1.36       tls 		cse = csefind(fcr, cnop[req].ses);
   1092  1.36       tls 		if (cse == NULL) {
   1093  1.36       tls 			DPRINTF(("csefind failed\n"));
   1094  1.36       tls 			cnop[req].status = EINVAL;
   1095  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1096  1.36       tls 			continue;
   1097  1.36       tls 		}
   1098  1.36       tls 		mutex_spin_exit(&crypto_mtx);
   1099  1.36       tls 
   1100  1.36       tls 		if (cnop[req].len > 256*1024-4) {
   1101  1.36       tls 			DPRINTF(("length failed\n"));
   1102  1.36       tls 			cnop[req].status = EINVAL;
   1103  1.36       tls 			continue;
   1104  1.36       tls 		}
   1105  1.36       tls 		if (cse->txform) {
   1106  1.36       tls 			if (cnop[req].len == 0 ||
   1107  1.36       tls 			    (cnop[req].len % cse->txform->blocksize) != 0) {
   1108  1.36       tls 				cnop[req].status = EINVAL;
   1109  1.36       tls 				continue;
   1110  1.36       tls 			}
   1111  1.36       tls 		}
   1112  1.36       tls 
   1113  1.42  christos 		crp = crypto_getreq((cse->txform != NULL) +
   1114  1.46    darran 				    (cse->thash != NULL) +
   1115  1.46    darran 				    (cse->tcomp != NULL));
   1116  1.36       tls 		if (crp == NULL) {
   1117  1.36       tls 			cnop[req].status = ENOMEM;
   1118  1.36       tls 			goto bail;
   1119  1.36       tls 		}
   1120  1.36       tls 
   1121  1.46    darran 		iov_len = cnop[req].len;
   1122  1.46    darran 		/* got a compression/decompression max size? */
   1123  1.46    darran 		if ((cse->tcomp) && cnop[req].dst_len) {
   1124  1.46    darran 			if (iov_len < cnop[req].dst_len) {
   1125  1.46    darran 				/* Need larger iov to deal with decompress */
   1126  1.46    darran 				iov_len = cnop[req].dst_len;
   1127  1.46    darran 			}
   1128  1.46    darran 			DPRINTF(("cryptodev_mop: iov_len -> %d for decompress\n", iov_len));
   1129  1.46    darran 		}
   1130  1.46    darran 
   1131  1.42  christos 		(void)memset(&crp->uio, 0, sizeof(crp->uio));
   1132  1.36       tls 		crp->uio.uio_iovcnt = 1;
   1133  1.36       tls 		crp->uio.uio_resid = 0;
   1134  1.36       tls 		crp->uio.uio_rw = UIO_WRITE;
   1135  1.36       tls 		crp->uio.uio_iov = crp->iovec;
   1136  1.36       tls 		UIO_SETUP_SYSSPACE(&crp->uio);
   1137  1.36       tls 		memset(&crp->iovec, 0, sizeof(crp->iovec));
   1138  1.46    darran 		crp->uio.uio_iov[0].iov_len = iov_len;
   1139  1.46    darran 		DPRINTF(("cryptodev_mop: kmem_alloc(%d) for iov \n", iov_len));
   1140  1.46    darran 		crp->uio.uio_iov[0].iov_base = kmem_alloc(iov_len, KM_SLEEP);
   1141  1.36       tls 		crp->uio.uio_resid = crp->uio.uio_iov[0].iov_len;
   1142  1.36       tls 
   1143  1.46    darran 		if (cse->tcomp) {
   1144  1.46    darran 			crdc = crp->crp_desc;
   1145  1.46    darran 		}
   1146  1.46    darran 
   1147  1.36       tls 		if (cse->thash) {
   1148  1.46    darran 			crda = crdc ? crdc->crd_next : crp->crp_desc;
   1149  1.44  christos 			if (cse->txform && crda)
   1150  1.36       tls 				crde = crda->crd_next;
   1151  1.36       tls 		} else {
   1152  1.46    darran 			if (cse->txform) {
   1153  1.46    darran 				crde = crdc ? crdc->crd_next : crp->crp_desc;
   1154  1.46    darran 			} else if (!cse->tcomp) {
   1155  1.46    darran 				error = EINVAL;
   1156  1.46    darran 				goto bail;
   1157  1.36       tls 			}
   1158  1.36       tls 		}
   1159  1.36       tls 
   1160  1.36       tls 		if ((copyin(cnop[req].src,
   1161  1.36       tls 		    crp->uio.uio_iov[0].iov_base, cnop[req].len))) {
   1162  1.36       tls 			cnop[req].status = EINVAL;
   1163  1.36       tls 			goto bail;
   1164  1.36       tls 		}
   1165  1.46    darran 
   1166  1.46    darran 		if (crdc) {
   1167  1.46    darran 			switch (cnop[req].op) {
   1168  1.46    darran 			case COP_COMP:
   1169  1.46    darran 				crdc->crd_flags |= CRD_F_COMP;
   1170  1.46    darran 				break;
   1171  1.46    darran 			case COP_DECOMP:
   1172  1.46    darran 				crdc->crd_flags &= ~CRD_F_COMP;
   1173  1.46    darran 				break;
   1174  1.46    darran 			default:
   1175  1.46    darran 				break;
   1176  1.46    darran 			}
   1177  1.46    darran 			/* more data to follow? */
   1178  1.46    darran 			if (cnop[req].flags & COP_F_MORE) {
   1179  1.46    darran 				flags |= CRYPTO_F_MORE;
   1180  1.46    darran 			}
   1181  1.46    darran 			crdc->crd_len = cnop[req].len;
   1182  1.46    darran 			crdc->crd_inject = 0;
   1183  1.46    darran 
   1184  1.46    darran 			crdc->crd_alg = cse->comp_alg;
   1185  1.46    darran 			crdc->crd_key = NULL;
   1186  1.46    darran 			crdc->crd_klen = 0;
   1187  1.46    darran 			DPRINTF(("cryptodev_mop[%d]: crdc setup for comp_alg %d"
   1188  1.46    darran 				 " len %d.\n",
   1189  1.46    darran 				(uint32_t)cse->sid, crdc->crd_alg,
   1190  1.46    darran 				crdc->crd_len));
   1191  1.46    darran 		}
   1192  1.36       tls 
   1193  1.36       tls 		if (crda) {
   1194  1.36       tls 			crda->crd_skip = 0;
   1195  1.36       tls 			crda->crd_len = cnop[req].len;
   1196  1.36       tls 			crda->crd_inject = 0;	/* ??? */
   1197  1.36       tls 
   1198  1.36       tls 			crda->crd_alg = cse->mac;
   1199  1.36       tls 			crda->crd_key = cse->mackey;
   1200  1.36       tls 			crda->crd_klen = cse->mackeylen * 8;
   1201  1.36       tls 		}
   1202  1.36       tls 
   1203  1.36       tls 		if (crde) {
   1204  1.36       tls 			if (cnop[req].op == COP_ENCRYPT)
   1205  1.36       tls 				crde->crd_flags |= CRD_F_ENCRYPT;
   1206  1.36       tls 			else
   1207  1.36       tls 				crde->crd_flags &= ~CRD_F_ENCRYPT;
   1208  1.36       tls 			crde->crd_len = cnop[req].len;
   1209  1.36       tls 			crde->crd_inject = 0;
   1210  1.36       tls 
   1211  1.36       tls 			crde->crd_alg = cse->cipher;
   1212  1.36       tls #ifdef notyet		/* XXX must notify h/w driver new key, drain */
   1213  1.36       tls 			if(cnop[req].key && cnop[req].keylen) {
   1214  1.36       tls 				crde->crd_key = malloc(cnop[req].keylen,
   1215  1.36       tls 						    M_XDATA, M_WAITOK);
   1216  1.36       tls 				if((error = copyin(cnop[req].key,
   1217  1.36       tls 				    crde->crd_key, cnop[req].keylen))) {
   1218  1.36       tls 					cnop[req].status = EINVAL;
   1219  1.36       tls 					goto bail;
   1220  1.36       tls 				}
   1221  1.36       tls 				crde->crd_klen =  cnop[req].keylen * 8;
   1222  1.36       tls 			} else { ... }
   1223  1.36       tls #endif
   1224  1.36       tls 			crde->crd_key = cse->key;
   1225  1.36       tls 			crde->crd_klen = cse->keylen * 8;
   1226  1.36       tls 		}
   1227  1.36       tls 
   1228  1.36       tls 		crp->crp_ilen = cnop[req].len;
   1229  1.42  christos 		crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM |
   1230  1.46    darran 		    (cnop[req].flags & COP_F_BATCH) | flags;
   1231  1.36       tls 		crp->crp_buf = (void *)&crp->uio;
   1232  1.36       tls 		crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_mcb;
   1233  1.36       tls 		crp->crp_sid = cse->sid;
   1234  1.36       tls 		crp->crp_opaque = (void *)cse;
   1235  1.36       tls 		crp->fcrp = fcr;
   1236  1.36       tls 		crp->dst = cnop[req].dst;
   1237  1.46    darran 		crp->len = cnop[req].len; /* input len, iov may be larger */
   1238  1.36       tls 		crp->mac = cnop[req].mac;
   1239  1.46    darran 		DPRINTF(("cryptodev_mop: iov_base %p dst %p len %d mac %p\n",
   1240  1.46    darran 			    crp->uio.uio_iov[0].iov_base, crp->dst, crp->len,
   1241  1.46    darran 			    crp->mac));
   1242  1.36       tls 
   1243  1.36       tls 		if (cnop[req].iv) {
   1244  1.36       tls 			if (crde == NULL) {
   1245  1.36       tls 				cnop[req].status = EINVAL;
   1246  1.36       tls 				goto bail;
   1247  1.36       tls 			}
   1248  1.36       tls 			if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
   1249  1.36       tls 				cnop[req].status = EINVAL;
   1250  1.36       tls 				goto bail;
   1251  1.36       tls 			}
   1252  1.36       tls 			if ((error = copyin(cnop[req].iv, crp->tmp_iv,
   1253  1.36       tls 			    cse->txform->blocksize))) {
   1254  1.36       tls 				cnop[req].status = EINVAL;
   1255  1.36       tls 				goto bail;
   1256  1.36       tls 			}
   1257  1.42  christos 			(void)memcpy(crde->crd_iv, crp->tmp_iv,
   1258  1.42  christos 			    cse->txform->blocksize);
   1259  1.36       tls 			crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
   1260  1.36       tls 			crde->crd_skip = 0;
   1261  1.36       tls 		} else if (crde) {
   1262  1.36       tls 			if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
   1263  1.36       tls 				crde->crd_skip = 0;
   1264  1.36       tls 			} else {
   1265  1.36       tls 				crde->crd_flags |= CRD_F_IV_PRESENT;
   1266  1.36       tls 				crde->crd_skip = cse->txform->blocksize;
   1267  1.36       tls 				crde->crd_len -= cse->txform->blocksize;
   1268  1.36       tls 			}
   1269  1.36       tls 		}
   1270  1.36       tls 
   1271  1.36       tls 		if (cnop[req].mac) {
   1272  1.36       tls 			if (crda == NULL) {
   1273  1.36       tls 				cnop[req].status = EINVAL;
   1274  1.36       tls 				goto bail;
   1275  1.36       tls 			}
   1276  1.36       tls 			crp->crp_mac=cse->tmp_mac;
   1277  1.36       tls 		}
   1278  1.36       tls 		cnop[req].reqid = atomic_inc_32_nv(&(fcr->requestid));
   1279  1.36       tls 		crp->crp_reqid = cnop[req].reqid;
   1280  1.36       tls 		crp->crp_usropaque = cnop[req].opaque;
   1281  1.36       tls #ifdef notyet
   1282  1.36       tls eagain:
   1283  1.36       tls #endif
   1284  1.36       tls 		cnop[req].status = crypto_dispatch(crp);
   1285  1.36       tls 		mutex_spin_enter(&crypto_mtx);	/* XXX why mutex? */
   1286  1.36       tls 
   1287  1.36       tls 		switch (cnop[req].status) {
   1288  1.36       tls #ifdef notyet	/* don't loop forever -- but EAGAIN not possible here yet */
   1289  1.36       tls 		case EAGAIN:
   1290  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1291  1.36       tls 			goto eagain;
   1292  1.36       tls 			break;
   1293  1.36       tls #endif
   1294  1.36       tls 		case 0:
   1295  1.36       tls 			break;
   1296  1.36       tls 		default:
   1297  1.36       tls 			DPRINTF(("cryptodev_op: not waiting, error.\n"));
   1298  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1299  1.36       tls 			goto bail;
   1300  1.36       tls 		}
   1301  1.36       tls 
   1302  1.36       tls 		mutex_spin_exit(&crypto_mtx);
   1303  1.36       tls bail:
   1304  1.36       tls 		if (cnop[req].status) {
   1305  1.36       tls 			if (crp) {
   1306  1.46    darran 				if (crp->uio.uio_iov[0].iov_base) {
   1307  1.46    darran 					kmem_free(crp->uio.uio_iov[0].iov_base,
   1308  1.46    darran 					    crp->uio.uio_iov[0].iov_len);
   1309  1.46    darran 				}
   1310  1.36       tls 				crypto_freereq(crp);
   1311  1.36       tls 			}
   1312  1.36       tls 			error = 0;
   1313  1.36       tls 		}
   1314  1.36       tls 	}
   1315  1.42  christos 	return error;
   1316  1.36       tls }
   1317  1.36       tls 
   1318  1.36       tls static int
   1319  1.36       tls cryptodev_mkey(struct fcrypt *fcr, struct crypt_n_kop *kop, int count)
   1320  1.36       tls {
   1321  1.36       tls 	struct cryptkop *krp = NULL;
   1322  1.36       tls 	int error = EINVAL;
   1323  1.36       tls 	int in, out, size, i, req;
   1324  1.36       tls 
   1325  1.36       tls 	for (req = 0; req < count; req++) {
   1326  1.42  christos 		if (kop[req].crk_iparams + kop[req].crk_oparams > CRK_MAXPARAM)
   1327  1.42  christos 			return EFBIG;
   1328  1.36       tls 
   1329  1.36       tls 		in = kop[req].crk_iparams;
   1330  1.36       tls 		out = kop[req].crk_oparams;
   1331  1.36       tls 		switch (kop[req].crk_op) {
   1332  1.36       tls 		case CRK_MOD_EXP:
   1333  1.36       tls 			if (in == 3 && out == 1)
   1334  1.36       tls 				break;
   1335  1.36       tls 			kop[req].crk_status = EINVAL;
   1336  1.36       tls 			continue;
   1337  1.36       tls 		case CRK_MOD_EXP_CRT:
   1338  1.36       tls 			if (in == 6 && out == 1)
   1339  1.36       tls 				break;
   1340  1.36       tls 			kop[req].crk_status = EINVAL;
   1341  1.36       tls 			continue;
   1342  1.36       tls 		case CRK_DSA_SIGN:
   1343  1.36       tls 			if (in == 5 && out == 2)
   1344  1.36       tls 				break;
   1345  1.36       tls 			kop[req].crk_status = EINVAL;
   1346  1.36       tls 			continue;
   1347  1.36       tls 		case CRK_DSA_VERIFY:
   1348  1.36       tls 			if (in == 7 && out == 0)
   1349  1.36       tls 				break;
   1350  1.36       tls 			kop[req].crk_status = EINVAL;
   1351  1.36       tls 			continue;
   1352  1.36       tls 		case CRK_DH_COMPUTE_KEY:
   1353  1.36       tls 			if (in == 3 && out == 1)
   1354  1.36       tls 				break;
   1355  1.36       tls 			kop[req].crk_status = EINVAL;
   1356  1.36       tls 			continue;
   1357  1.36       tls 		case CRK_MOD_ADD:
   1358  1.36       tls 			if (in == 3 && out == 1)
   1359  1.36       tls 				break;
   1360  1.36       tls 			kop[req].crk_status = EINVAL;
   1361  1.36       tls 			continue;
   1362  1.36       tls 		case CRK_MOD_ADDINV:
   1363  1.36       tls 			if (in == 2 && out == 1)
   1364  1.36       tls 				break;
   1365  1.36       tls 			kop[req].crk_status = EINVAL;
   1366  1.36       tls 			continue;
   1367  1.36       tls 		case CRK_MOD_SUB:
   1368  1.36       tls 			if (in == 3 && out == 1)
   1369  1.36       tls 				break;
   1370  1.36       tls 			kop[req].crk_status = EINVAL;
   1371  1.36       tls 			continue;
   1372  1.36       tls 		case CRK_MOD_MULT:
   1373  1.36       tls 			if (in == 3 && out == 1)
   1374  1.36       tls 				break;
   1375  1.36       tls 			kop[req].crk_status = EINVAL;
   1376  1.36       tls 			continue;
   1377  1.36       tls 		case CRK_MOD_MULTINV:
   1378  1.36       tls 			if (in == 2 && out == 1)
   1379  1.36       tls 				break;
   1380  1.36       tls 			kop[req].crk_status = EINVAL;
   1381  1.36       tls 			continue;
   1382  1.36       tls 		case CRK_MOD:
   1383  1.36       tls 			if (in == 2 && out == 1)
   1384  1.36       tls 				break;
   1385  1.36       tls 			kop[req].crk_status = EINVAL;
   1386  1.36       tls 			continue;
   1387  1.36       tls 		default:
   1388  1.36       tls 			kop[req].crk_status = EINVAL;
   1389  1.36       tls 			continue;
   1390  1.36       tls 		}
   1391  1.36       tls 
   1392  1.36       tls 		krp = pool_get(&cryptkop_pool, PR_WAITOK);
   1393  1.42  christos 		(void)memset(krp, 0, sizeof *krp);
   1394  1.36       tls 		cv_init(&krp->krp_cv, "crykdev");
   1395  1.36       tls 		krp->krp_op = kop[req].crk_op;
   1396  1.36       tls 		krp->krp_status = kop[req].crk_status;
   1397  1.36       tls 		krp->krp_iparams = kop[req].crk_iparams;
   1398  1.36       tls 		krp->krp_oparams = kop[req].crk_oparams;
   1399  1.36       tls 		krp->krp_status = 0;
   1400  1.36       tls 		krp->krp_callback =
   1401  1.36       tls 		    (int (*) (struct cryptkop *)) cryptodevkey_mcb;
   1402  1.42  christos 		(void)memcpy(krp->crk_param, kop[req].crk_param,
   1403  1.42  christos 		    sizeof(kop[req].crk_param));
   1404  1.36       tls 
   1405  1.36       tls 		krp->krp_flags = CRYPTO_F_CBIMM;
   1406  1.36       tls 
   1407  1.36       tls 		for (i = 0; i < CRK_MAXPARAM; i++)
   1408  1.36       tls 			krp->krp_param[i].crp_nbits =
   1409  1.36       tls 			    kop[req].crk_param[i].crp_nbits;
   1410  1.36       tls 		for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
   1411  1.36       tls 			size = (krp->krp_param[i].crp_nbits + 7) / 8;
   1412  1.36       tls 			if (size == 0)
   1413  1.36       tls 				continue;
   1414  1.36       tls 			krp->krp_param[i].crp_p =
   1415  1.36       tls 			    kmem_alloc(size, KM_SLEEP);
   1416  1.36       tls 			if (i >= krp->krp_iparams)
   1417  1.36       tls 				continue;
   1418  1.42  christos 			kop[req].crk_status =
   1419  1.42  christos 			    copyin(kop[req].crk_param[i].crp_p,
   1420  1.42  christos 			    krp->krp_param[i].crp_p, size);
   1421  1.36       tls 			if (kop[req].crk_status)
   1422  1.36       tls 				goto fail;
   1423  1.36       tls 		}
   1424  1.36       tls 		krp->fcrp = fcr;
   1425  1.36       tls 
   1426  1.36       tls 		kop[req].crk_reqid = atomic_inc_32_nv(&(fcr->requestid));
   1427  1.36       tls 		krp->krp_reqid = kop[req].crk_reqid;
   1428  1.36       tls 		krp->krp_usropaque = kop[req].crk_opaque;
   1429  1.36       tls 
   1430  1.36       tls 		kop[req].crk_status = crypto_kdispatch(krp);
   1431  1.36       tls 		if (kop[req].crk_status != 0) {
   1432  1.36       tls 			goto fail;
   1433  1.36       tls 		}
   1434  1.36       tls 
   1435  1.36       tls fail:
   1436  1.36       tls 		if(kop[req].crk_status) {
   1437  1.36       tls 			if (krp) {
   1438  1.36       tls 				kop[req].crk_status = krp->krp_status;
   1439  1.36       tls 				for (i = 0; i < CRK_MAXPARAM; i++) {
   1440  1.36       tls 					struct crparam *kp =
   1441  1.36       tls 						&(krp->krp_param[i]);
   1442  1.36       tls 					if (kp->crp_p) {
   1443  1.36       tls 						size = (kp->crp_nbits + 7) / 8;
   1444  1.36       tls 						KASSERT(size > 0);
   1445  1.36       tls 						memset(kp->crp_p, 0, size);
   1446  1.36       tls 						kmem_free(kp->crp_p, size);
   1447  1.36       tls 					}
   1448  1.36       tls 				}
   1449  1.45    darran 				cv_destroy(&krp->krp_cv);
   1450  1.36       tls 				pool_put(&cryptkop_pool, krp);
   1451  1.36       tls 			}
   1452  1.36       tls 		}
   1453  1.36       tls 		error = 0;
   1454  1.36       tls 	}
   1455  1.36       tls 	DPRINTF(("cryptodev_key: error=0x%08x\n", error));
   1456  1.42  christos 	return error;
   1457  1.36       tls }
   1458  1.36       tls 
   1459  1.46    darran int
   1460  1.45    darran cryptodev_session(struct fcrypt *fcr, struct session_op *sop)
   1461  1.45    darran {
   1462  1.36       tls 	struct cryptoini cria, crie;
   1463  1.46    darran 	struct cryptoini cric;		/* compressor */
   1464  1.46    darran 	struct cryptoini *crihead = NULL;
   1465  1.36       tls 	struct enc_xform *txform = NULL;
   1466  1.36       tls 	struct auth_hash *thash = NULL;
   1467  1.46    darran 	struct comp_algo *tcomp = NULL;
   1468  1.36       tls 	struct csession *cse;
   1469  1.36       tls 	u_int64_t sid;
   1470  1.36       tls 	int error = 0;
   1471  1.36       tls 
   1472  1.46    darran 	DPRINTF(("cryptodev_session() cipher=%d, mac=%d\n", sop->cipher, sop->mac));
   1473  1.46    darran 
   1474  1.36       tls 	/* XXX there must be a way to not embed the list of xforms here */
   1475  1.36       tls 	switch (sop->cipher) {
   1476  1.36       tls 	case 0:
   1477  1.36       tls 		break;
   1478  1.36       tls 	case CRYPTO_DES_CBC:
   1479  1.36       tls 		txform = &enc_xform_des;
   1480  1.36       tls 		break;
   1481  1.36       tls 	case CRYPTO_3DES_CBC:
   1482  1.36       tls 		txform = &enc_xform_3des;
   1483  1.36       tls 		break;
   1484  1.36       tls 	case CRYPTO_BLF_CBC:
   1485  1.36       tls 		txform = &enc_xform_blf;
   1486  1.36       tls 		break;
   1487  1.36       tls 	case CRYPTO_CAST_CBC:
   1488  1.36       tls 		txform = &enc_xform_cast5;
   1489  1.36       tls 	case CRYPTO_SKIPJACK_CBC:
   1490  1.36       tls 		txform = &enc_xform_skipjack;
   1491  1.36       tls 		break;
   1492  1.36       tls 	case CRYPTO_AES_CBC:
   1493  1.36       tls 		txform = &enc_xform_rijndael128;
   1494  1.36       tls 		break;
   1495  1.36       tls 	case CRYPTO_NULL_CBC:
   1496  1.36       tls 		txform = &enc_xform_null;
   1497  1.36       tls 		break;
   1498  1.36       tls 	case CRYPTO_ARC4:
   1499  1.36       tls 		txform = &enc_xform_arc4;
   1500  1.36       tls 		break;
   1501  1.36       tls 	default:
   1502  1.36       tls 		DPRINTF(("Invalid cipher %d\n", sop->cipher));
   1503  1.36       tls 		return EINVAL;
   1504  1.36       tls 	}
   1505  1.36       tls 
   1506  1.46    darran 	switch (sop->comp_alg) {
   1507  1.46    darran 	case 0:
   1508  1.46    darran 		break;
   1509  1.46    darran 	case CRYPTO_DEFLATE_COMP:
   1510  1.46    darran 		tcomp = &comp_algo_deflate;
   1511  1.46    darran 		break;
   1512  1.46    darran 	case CRYPTO_GZIP_COMP:
   1513  1.46    darran 		tcomp = &comp_algo_gzip;
   1514  1.46    darran 		DPRINTF(("cryptodev_session() tcomp for GZIP\n"));
   1515  1.46    darran 		break;
   1516  1.46    darran 	default:
   1517  1.46    darran 		DPRINTF(("Invalid compression alg %d\n", sop->comp_alg));
   1518  1.46    darran 		return EINVAL;
   1519  1.46    darran 	}
   1520  1.46    darran 
   1521  1.36       tls 	switch (sop->mac) {
   1522  1.36       tls 	case 0:
   1523  1.36       tls 		break;
   1524  1.36       tls 	case CRYPTO_MD5_HMAC:
   1525  1.36       tls 		thash = &auth_hash_hmac_md5;
   1526  1.36       tls 		break;
   1527  1.36       tls 	case CRYPTO_SHA1_HMAC:
   1528  1.36       tls 		thash = &auth_hash_hmac_sha1;
   1529  1.36       tls 		break;
   1530  1.36       tls 	case CRYPTO_MD5_HMAC_96:
   1531  1.36       tls 		thash = &auth_hash_hmac_md5_96;
   1532  1.36       tls 		break;
   1533  1.36       tls 	case CRYPTO_SHA1_HMAC_96:
   1534  1.36       tls 		thash = &auth_hash_hmac_sha1_96;
   1535  1.36       tls 		break;
   1536  1.36       tls 	case CRYPTO_SHA2_HMAC:
   1537  1.36       tls 		/* XXX switching on key length seems questionable */
   1538  1.36       tls 		if (sop->mackeylen == auth_hash_hmac_sha2_256.keysize) {
   1539  1.36       tls 			thash = &auth_hash_hmac_sha2_256;
   1540  1.36       tls 		} else if (sop->mackeylen == auth_hash_hmac_sha2_384.keysize) {
   1541  1.36       tls 			thash = &auth_hash_hmac_sha2_384;
   1542  1.36       tls 		} else if (sop->mackeylen == auth_hash_hmac_sha2_512.keysize) {
   1543  1.36       tls 			thash = &auth_hash_hmac_sha2_512;
   1544  1.36       tls 		} else {
   1545  1.36       tls 			DPRINTF(("Invalid mackeylen %d\n", sop->mackeylen));
   1546  1.36       tls 			return EINVAL;
   1547  1.36       tls 		}
   1548  1.36       tls 		break;
   1549  1.36       tls 	case CRYPTO_RIPEMD160_HMAC:
   1550  1.36       tls 		thash = &auth_hash_hmac_ripemd_160;
   1551  1.36       tls 		break;
   1552  1.36       tls 	case CRYPTO_RIPEMD160_HMAC_96:
   1553  1.36       tls 		thash = &auth_hash_hmac_ripemd_160_96;
   1554  1.36       tls 		break;
   1555  1.36       tls 	case CRYPTO_MD5:
   1556  1.36       tls 		thash = &auth_hash_md5;
   1557  1.36       tls 		break;
   1558  1.36       tls 	case CRYPTO_SHA1:
   1559  1.36       tls 		thash = &auth_hash_sha1;
   1560  1.36       tls 		break;
   1561  1.36       tls 	case CRYPTO_NULL_HMAC:
   1562  1.36       tls 		thash = &auth_hash_null;
   1563  1.36       tls 		break;
   1564  1.36       tls 	default:
   1565  1.36       tls 		DPRINTF(("Invalid mac %d\n", sop->mac));
   1566  1.42  christos 		return EINVAL;
   1567  1.36       tls 	}
   1568  1.36       tls 
   1569  1.36       tls 	memset(&crie, 0, sizeof(crie));
   1570  1.36       tls 	memset(&cria, 0, sizeof(cria));
   1571  1.46    darran 	memset(&cric, 0, sizeof(cric));
   1572  1.46    darran 
   1573  1.46    darran 	if (tcomp) {
   1574  1.46    darran 		cric.cri_alg = tcomp->type;
   1575  1.46    darran 		cric.cri_klen = 0;
   1576  1.46    darran 		DPRINTF(("tcomp->type = %d\n", tcomp->type));
   1577  1.46    darran 
   1578  1.46    darran 		crihead = &cric;
   1579  1.46    darran 		if (thash) {
   1580  1.46    darran 			cric.cri_next = &cria;
   1581  1.46    darran 		} else if (txform) {
   1582  1.46    darran 			cric.cri_next = &crie;
   1583  1.46    darran 		}
   1584  1.46    darran 	}
   1585  1.36       tls 
   1586  1.36       tls 	if (txform) {
   1587  1.36       tls 		crie.cri_alg = txform->type;
   1588  1.36       tls 		crie.cri_klen = sop->keylen * 8;
   1589  1.36       tls 		if (sop->keylen > txform->maxkey ||
   1590  1.36       tls 		    sop->keylen < txform->minkey) {
   1591  1.36       tls 			DPRINTF(("keylen %d not in [%d,%d]\n",
   1592  1.42  christos 			    sop->keylen, txform->minkey, txform->maxkey));
   1593  1.42  christos 			error = EINVAL;
   1594  1.36       tls 			goto bail;
   1595  1.36       tls 		}
   1596  1.36       tls 
   1597  1.36       tls 		crie.cri_key = malloc(crie.cri_klen / 8, M_XDATA, M_WAITOK);
   1598  1.42  christos 		if ((error = copyin(sop->key, crie.cri_key, crie.cri_klen / 8)))
   1599  1.36       tls 			goto bail;
   1600  1.46    darran 		if (!crihead) {
   1601  1.46    darran 			crihead = &crie;
   1602  1.46    darran 		}
   1603  1.46    darran 	}
   1604  1.36       tls 
   1605  1.36       tls 	if (thash) {
   1606  1.36       tls 		cria.cri_alg = thash->type;
   1607  1.36       tls 		cria.cri_klen = sop->mackeylen * 8;
   1608  1.36       tls 		if (sop->mackeylen != thash->keysize) {
   1609  1.36       tls 			DPRINTF(("mackeylen %d != keysize %d\n",
   1610  1.42  christos 			    sop->mackeylen, thash->keysize));
   1611  1.36       tls 			error = EINVAL;
   1612  1.36       tls 			goto bail;
   1613  1.36       tls 		}
   1614  1.36       tls 		if (cria.cri_klen) {
   1615  1.36       tls 			cria.cri_key = malloc(cria.cri_klen / 8, M_XDATA,
   1616  1.42  christos 			    M_WAITOK);
   1617  1.36       tls 			if ((error = copyin(sop->mackey, cria.cri_key,
   1618  1.42  christos 			    cria.cri_klen / 8))) {
   1619  1.36       tls 				goto bail;
   1620  1.36       tls 			}
   1621  1.36       tls 		}
   1622  1.46    darran 		if (txform)
   1623  1.46    darran 			cria.cri_next = &crie;	/* XXX forces enc then hash? */
   1624  1.46    darran 		if (!crihead) {
   1625  1.46    darran 			crihead = &cria;
   1626  1.46    darran 		}
   1627  1.36       tls 	}
   1628  1.46    darran 
   1629  1.36       tls 	/* crypto_newsession requires that we hold the mutex. */
   1630  1.36       tls 	mutex_spin_enter(&crypto_mtx);
   1631  1.46    darran 	error = crypto_newsession(&sid, crihead, crypto_devallowsoft);
   1632  1.36       tls 	if (!error) {
   1633  1.46    darran 		DPRINTF(("cyrptodev_session: got session %d\n", (uint32_t)sid));
   1634  1.36       tls 		cse = csecreate(fcr, sid, crie.cri_key, crie.cri_klen,
   1635  1.46    darran 		    cria.cri_key, cria.cri_klen, (txform ? sop->cipher : 0), sop->mac,
   1636  1.46    darran 		    (tcomp ? sop->comp_alg : 0), txform, thash, tcomp);
   1637  1.36       tls 		if (cse != NULL) {
   1638  1.36       tls 			sop->ses = cse->ses;
   1639  1.36       tls 		} else {
   1640  1.36       tls 			DPRINTF(("csecreate failed\n"));
   1641  1.36       tls 			crypto_freesession(sid);
   1642  1.36       tls 			error = EINVAL;
   1643  1.36       tls 		}
   1644  1.36       tls 	} else {
   1645  1.36       tls 		DPRINTF(("SIOCSESSION violates kernel parameters %d\n",
   1646  1.42  christos 		    error));
   1647  1.36       tls 	}
   1648  1.36       tls 	mutex_spin_exit(&crypto_mtx);
   1649  1.36       tls bail:
   1650  1.36       tls 	if (error) {
   1651  1.36       tls 		if (crie.cri_key) {
   1652  1.36       tls 			memset(crie.cri_key, 0, crie.cri_klen / 8);
   1653  1.36       tls 			free(crie.cri_key, M_XDATA);
   1654  1.36       tls 		}
   1655  1.36       tls 		if (cria.cri_key) {
   1656  1.36       tls 			memset(cria.cri_key, 0, cria.cri_klen / 8);
   1657  1.36       tls 			free(cria.cri_key, M_XDATA);
   1658  1.36       tls 		}
   1659  1.36       tls 	}
   1660  1.36       tls 	return error;
   1661  1.36       tls }
   1662  1.36       tls 
   1663  1.46    darran int
   1664  1.36       tls cryptodev_msession(struct fcrypt *fcr, struct session_n_op *sn_ops,
   1665  1.36       tls 		   int count)
   1666  1.36       tls {
   1667  1.36       tls 	int i;
   1668  1.36       tls 
   1669  1.36       tls 	for (i = 0; i < count; i++, sn_ops++) {
   1670  1.36       tls 		struct session_op s_op;
   1671  1.36       tls 		s_op.cipher =		sn_ops->cipher;
   1672  1.36       tls 		s_op.mac =		sn_ops->mac;
   1673  1.36       tls 		s_op.keylen =		sn_ops->keylen;
   1674  1.36       tls 		s_op.key =		sn_ops->key;
   1675  1.36       tls 		s_op.mackeylen =	sn_ops->mackeylen;
   1676  1.36       tls 		s_op.mackey =		sn_ops->mackey;
   1677  1.36       tls 
   1678  1.36       tls 		sn_ops->status = cryptodev_session(fcr, &s_op);
   1679  1.36       tls 		sn_ops->ses =		s_op.ses;
   1680  1.36       tls 	}
   1681  1.36       tls 
   1682  1.36       tls 	return 0;
   1683  1.36       tls }
   1684  1.36       tls 
   1685  1.36       tls static int
   1686  1.36       tls cryptodev_msessionfin(struct fcrypt *fcr, int count, u_int32_t *sesid)
   1687  1.36       tls {
   1688  1.36       tls 	struct csession *cse;
   1689  1.36       tls 	int req, error = 0;
   1690  1.36       tls 
   1691  1.36       tls 	mutex_spin_enter(&crypto_mtx);
   1692  1.36       tls 	for(req = 0; req < count; req++) {
   1693  1.36       tls 		cse = csefind(fcr, sesid[req]);
   1694  1.36       tls 		if (cse == NULL)
   1695  1.36       tls 			continue;
   1696  1.36       tls 		csedelete(fcr, cse);
   1697  1.36       tls 		error = csefree(cse);
   1698  1.36       tls 	}
   1699  1.36       tls 	mutex_spin_exit(&crypto_mtx);
   1700  1.36       tls 	return 0;
   1701  1.36       tls }
   1702  1.36       tls 
   1703  1.36       tls /*
   1704  1.42  christos  * collect as many completed requests as are availble, or count completed
   1705  1.42  christos  * requests whichever is less.
   1706  1.36       tls  * return the number of requests.
   1707  1.36       tls  */
   1708  1.36       tls static int
   1709  1.36       tls cryptodev_getmstatus(struct fcrypt *fcr, struct crypt_result *crypt_res,
   1710  1.42  christos     int count)
   1711  1.36       tls {
   1712  1.36       tls 	struct cryptop *crp = NULL;
   1713  1.36       tls 	struct cryptkop *krp = NULL;
   1714  1.36       tls 	struct csession *cse;
   1715  1.36       tls 	int i, size, req = 0;
   1716  1.36       tls 	int completed=0;
   1717  1.36       tls 
   1718  1.46    darran 	/* On queue so nobody else can grab them
   1719  1.46    darran 	 * and copyout can be delayed-- no locking */
   1720  1.46    darran 	TAILQ_HEAD(, cryptop) crp_delfree_q =
   1721  1.46    darran 		TAILQ_HEAD_INITIALIZER(crp_delfree_q);
   1722  1.46    darran 	TAILQ_HEAD(, cryptkop) krp_delfree_q =
   1723  1.46    darran 		TAILQ_HEAD_INITIALIZER(krp_delfree_q);
   1724  1.36       tls 
   1725  1.36       tls 	/* at this point we do not know which response user is requesting for
   1726  1.36       tls 	 * (symmetric or asymmetric) so we copyout one from each i.e if the
   1727  1.36       tls 	 * count is 2 then 1 from symmetric and 1 from asymmetric queue and
   1728  1.36       tls 	 * if 3 then 2 symmetric and 1 asymmetric and so on */
   1729  1.46    darran 
   1730  1.46    darran 	/* pull off a list of requests while protected from changes */
   1731  1.46    darran 	mutex_spin_enter(&crypto_mtx);
   1732  1.46    darran 	while (req < count) {
   1733  1.36       tls 		crp = TAILQ_FIRST(&fcr->crp_ret_mq);
   1734  1.46    darran 		if (crp) {
   1735  1.46    darran 			TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
   1736  1.46    darran 			TAILQ_INSERT_TAIL(&crp_delfree_q, crp, crp_next);
   1737  1.36       tls 			cse = (struct csession *)crp->crp_opaque;
   1738  1.46    darran 
   1739  1.46    darran 			/* see if the session is still valid */
   1740  1.36       tls 			cse = csefind(fcr, cse->ses);
   1741  1.46    darran 			if (cse != NULL) {
   1742  1.46    darran 				crypt_res[req].status = 0;
   1743  1.46    darran 			} else {
   1744  1.36       tls 				DPRINTF(("csefind failed\n"));
   1745  1.36       tls 				crypt_res[req].status = EINVAL;
   1746  1.46    darran 			}
   1747  1.46    darran 			req++;
   1748  1.46    darran 		}
   1749  1.46    darran 		if(req < count) {
   1750  1.46    darran 			crypt_res[req].status = 0;
   1751  1.46    darran 			krp = TAILQ_FIRST(&fcr->crp_ret_mkq);
   1752  1.46    darran 			if (krp) {
   1753  1.46    darran 				TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
   1754  1.46    darran 				TAILQ_INSERT_TAIL(&krp_delfree_q, krp, krp_next);
   1755  1.46    darran 			req++;
   1756  1.46    darran 			}
   1757  1.46    darran 		}
   1758  1.46    darran 	}
   1759  1.46    darran 	mutex_spin_exit(&crypto_mtx);
   1760  1.46    darran 
   1761  1.46    darran 	/* now do all the work outside the mutex */
   1762  1.46    darran 	for(req=0; req < count ;) {
   1763  1.46    darran 		crp = TAILQ_FIRST(&crp_delfree_q);
   1764  1.46    darran 		if (crp) {
   1765  1.46    darran 			if (crypt_res[req].status != 0) {
   1766  1.46    darran 				/* csefind failed during collection */
   1767  1.36       tls 				goto bail;
   1768  1.36       tls 			}
   1769  1.46    darran 			cse = (struct csession *)crp->crp_opaque;
   1770  1.46    darran 			crypt_res[req].reqid = crp->crp_reqid;
   1771  1.46    darran 			crypt_res[req].opaque = crp->crp_usropaque;
   1772  1.46    darran 			completed++;
   1773  1.36       tls 
   1774  1.36       tls 			if (crp->crp_etype != 0) {
   1775  1.36       tls 				crypt_res[req].status = crp->crp_etype;
   1776  1.36       tls 				goto bail;
   1777  1.36       tls 			}
   1778  1.36       tls 
   1779  1.36       tls 			if (cse->error) {
   1780  1.36       tls 				crypt_res[req].status = cse->error;
   1781  1.36       tls 				goto bail;
   1782  1.36       tls 			}
   1783  1.36       tls 
   1784  1.42  christos 			if (crp->dst && (crypt_res[req].status =
   1785  1.42  christos 			    copyout(crp->uio.uio_iov[0].iov_base, crp->dst,
   1786  1.42  christos 			    crp->len)))
   1787  1.36       tls 				goto bail;
   1788  1.36       tls 
   1789  1.42  christos 			if (crp->mac && (crypt_res[req].status =
   1790  1.42  christos 			    copyout(crp->crp_mac, crp->mac,
   1791  1.42  christos 			    cse->thash->authsize)))
   1792  1.36       tls 				goto bail;
   1793  1.46    darran 
   1794  1.36       tls bail:
   1795  1.46    darran 			TAILQ_REMOVE(&crp_delfree_q, crp, crp_next);
   1796  1.46    darran 			kmem_free(crp->uio.uio_iov[0].iov_base,
   1797  1.46    darran 			    crp->uio.uio_iov[0].iov_len);
   1798  1.46    darran 			crypto_freereq(crp);
   1799  1.36       tls 			req++;
   1800  1.36       tls 		}
   1801  1.36       tls 
   1802  1.46    darran 		if (req < count) {
   1803  1.46    darran 			krp = TAILQ_FIRST(&krp_delfree_q);
   1804  1.36       tls 			if (krp) {
   1805  1.36       tls 				crypt_res[req].reqid = krp->krp_reqid;
   1806  1.36       tls 				crypt_res[req].opaque = krp->krp_usropaque;
   1807  1.36       tls 				completed++;
   1808  1.36       tls 				if (krp->krp_status != 0) {
   1809  1.36       tls 					DPRINTF(("cryptodev_key: "
   1810  1.42  christos 					    "krp->krp_status 0x%08x\n",
   1811  1.42  christos 					    krp->krp_status));
   1812  1.42  christos 					crypt_res[req].status = krp->krp_status;
   1813  1.36       tls 					goto fail;
   1814  1.36       tls 				}
   1815  1.36       tls 
   1816  1.36       tls 				for (i = krp->krp_iparams; i < krp->krp_iparams
   1817  1.42  christos 				    + krp->krp_oparams; i++) {
   1818  1.36       tls 					size = (krp->krp_param[i].crp_nbits
   1819  1.42  christos 					    + 7) / 8;
   1820  1.36       tls 					if (size == 0)
   1821  1.36       tls 						continue;
   1822  1.36       tls 					crypt_res[req].status = copyout
   1823  1.36       tls 					    (krp->krp_param[i].crp_p,
   1824  1.36       tls 					    krp->crk_param[i].crp_p, size);
   1825  1.36       tls 					if (crypt_res[req].status) {
   1826  1.36       tls 						DPRINTF(("cryptodev_key: "
   1827  1.42  christos 						    "copyout oparam %d failed, "
   1828  1.42  christos 						    "error=%d\n",
   1829  1.42  christos 						    i - krp->krp_iparams,
   1830  1.42  christos 						    crypt_res[req].status));
   1831  1.36       tls 						goto fail;
   1832  1.36       tls 					}
   1833  1.36       tls 				}
   1834  1.36       tls fail:
   1835  1.46    darran 				TAILQ_REMOVE(&krp_delfree_q, krp, krp_next);
   1836  1.36       tls 				/* not sure what to do for this */
   1837  1.36       tls 				/* kop[req].crk_status = krp->krp_status; */
   1838  1.46    darran 				for (i = 0; i < CRK_MAXPARAM; i++) {
   1839  1.46    darran 					struct crparam *kp = &(krp->krp_param[i]);
   1840  1.46    darran 					if (kp->crp_p) {
   1841  1.46    darran 						size = (kp->crp_nbits + 7) / 8;
   1842  1.46    darran 						KASSERT(size > 0);
   1843  1.46    darran 						(void)memset(kp->crp_p, 0, size);
   1844  1.46    darran 						kmem_free(kp->crp_p, size);
   1845  1.46    darran 					}
   1846  1.46    darran 				}
   1847  1.46    darran 				cv_destroy(&krp->krp_cv);
   1848  1.46    darran 				pool_put(&cryptkop_pool, krp);
   1849  1.46    darran 				req++;
   1850  1.36       tls 			}
   1851  1.36       tls 		}
   1852  1.36       tls 	}
   1853  1.36       tls 
   1854  1.36       tls 	return completed;
   1855  1.36       tls }
   1856  1.36       tls 
   1857  1.36       tls static int
   1858  1.36       tls cryptodev_getstatus (struct fcrypt *fcr, struct crypt_result *crypt_res)
   1859  1.36       tls {
   1860  1.45    darran         struct cryptop *crp = NULL, *cnext;
   1861  1.45    darran         struct cryptkop *krp = NULL, *knext;
   1862  1.36       tls         struct csession *cse;
   1863  1.36       tls         int i, size, req = 0;
   1864  1.36       tls 
   1865  1.36       tls 	mutex_spin_enter(&crypto_mtx);
   1866  1.36       tls 	/* Here we dont know for which request the user is requesting the
   1867  1.36       tls 	 * response so checking in both the queues */
   1868  1.45    darran 	TAILQ_FOREACH_SAFE(crp, &fcr->crp_ret_mq, crp_next, cnext) {
   1869  1.36       tls 		if(crp && (crp->crp_reqid == crypt_res->reqid)) {
   1870  1.36       tls 			cse = (struct csession *)crp->crp_opaque;
   1871  1.36       tls 		        crypt_res->opaque = crp->crp_usropaque;
   1872  1.36       tls 			cse = csefind(fcr, cse->ses);
   1873  1.36       tls 			if (cse == NULL) {
   1874  1.36       tls 				DPRINTF(("csefind failed\n"));
   1875  1.36       tls 				crypt_res->status = EINVAL;
   1876  1.36       tls 				goto bail;
   1877  1.36       tls 			}
   1878  1.36       tls 
   1879  1.36       tls 			if (crp->crp_etype != 0) {
   1880  1.36       tls 				crypt_res->status = crp->crp_etype;
   1881  1.36       tls 				goto bail;
   1882  1.36       tls 			}
   1883  1.36       tls 
   1884  1.36       tls 			if (cse->error) {
   1885  1.36       tls 				crypt_res->status = cse->error;
   1886  1.36       tls 				goto bail;
   1887  1.36       tls 			}
   1888  1.36       tls 
   1889  1.42  christos 			if (crp->dst && (crypt_res->status =
   1890  1.42  christos 			    copyout(crp->uio.uio_iov[0].iov_base,
   1891  1.42  christos 			    crp->dst, crp->len)))
   1892  1.36       tls 				goto bail;
   1893  1.36       tls 
   1894  1.42  christos 			if (crp->mac && (crypt_res->status =
   1895  1.42  christos 			    copyout(crp->crp_mac, crp->mac,
   1896  1.42  christos 			    cse->thash->authsize)))
   1897  1.36       tls 				goto bail;
   1898  1.36       tls bail:
   1899  1.36       tls 			TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
   1900  1.36       tls 
   1901  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1902  1.36       tls 			crypto_freereq(crp);
   1903  1.36       tls 			return 0;
   1904  1.36       tls 		}
   1905  1.36       tls 	}
   1906  1.36       tls 
   1907  1.45    darran 	TAILQ_FOREACH_SAFE(krp, &fcr->crp_ret_mkq, krp_next, knext) {
   1908  1.36       tls 		if(krp && (krp->krp_reqid == crypt_res->reqid)) {
   1909  1.36       tls 			crypt_res[req].opaque = krp->krp_usropaque;
   1910  1.36       tls 			if (krp->krp_status != 0) {
   1911  1.36       tls 				DPRINTF(("cryptodev_key: "
   1912  1.42  christos 				    "krp->krp_status 0x%08x\n",
   1913  1.42  christos 				    krp->krp_status));
   1914  1.36       tls 				crypt_res[req].status = krp->krp_status;
   1915  1.36       tls 				goto fail;
   1916  1.36       tls 			}
   1917  1.36       tls 
   1918  1.42  christos 			for (i = krp->krp_iparams; i < krp->krp_iparams +
   1919  1.42  christos 			    krp->krp_oparams; i++) {
   1920  1.36       tls 				size = (krp->krp_param[i].crp_nbits + 7) / 8;
   1921  1.36       tls 				if (size == 0)
   1922  1.36       tls 					continue;
   1923  1.42  christos 				crypt_res[req].status = copyout(
   1924  1.42  christos 				    krp->krp_param[i].crp_p,
   1925  1.42  christos 				    krp->crk_param[i].crp_p, size);
   1926  1.36       tls 				if (crypt_res[req].status) {
   1927  1.36       tls 					DPRINTF(("cryptodev_key: copyout oparam"
   1928  1.42  christos 					    "%d failed, error=%d\n",
   1929  1.42  christos 					    i - krp->krp_iparams,
   1930  1.42  christos 					    crypt_res[req].status));
   1931  1.36       tls 					goto fail;
   1932  1.36       tls 				}
   1933  1.36       tls 			}
   1934  1.36       tls fail:
   1935  1.36       tls 			TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
   1936  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1937  1.36       tls 			/* not sure what to do for this */
   1938  1.36       tls 			/* kop[req].crk_status = krp->krp_status; */
   1939  1.36       tls 			for (i = 0; i < CRK_MAXPARAM; i++) {
   1940  1.36       tls 				struct crparam *kp = &(krp->krp_param[i]);
   1941  1.36       tls 				if (kp->crp_p) {
   1942  1.36       tls 					size = (kp->crp_nbits + 7) / 8;
   1943  1.36       tls 					KASSERT(size > 0);
   1944  1.36       tls 					memset(kp->crp_p, 0, size);
   1945  1.36       tls 					kmem_free(kp->crp_p, size);
   1946  1.36       tls 				}
   1947  1.36       tls 			}
   1948  1.45    darran 			cv_destroy(&krp->krp_cv);
   1949  1.36       tls 			pool_put(&cryptkop_pool, krp);
   1950  1.36       tls 			return 0;
   1951  1.36       tls 		}
   1952  1.36       tls 	}
   1953  1.36       tls 	mutex_spin_exit(&crypto_mtx);
   1954  1.36       tls 	return EINPROGRESS;
   1955  1.36       tls }
   1956  1.36       tls 
   1957  1.36       tls static int
   1958  1.48  christos cryptof_stat(struct file *fp, struct stat *st)
   1959  1.48  christos {
   1960  1.48  christos 	struct fcrypt *fcr = fp->f_data;
   1961  1.48  christos 
   1962  1.48  christos 	(void)memset(st, 0, sizeof(st));
   1963  1.48  christos 	KERNEL_LOCK(1, NULL);
   1964  1.48  christos 	st->st_dev = makedev(cdevsw_lookup_major(&crypto_cdevsw), fcr->sesn);
   1965  1.48  christos 	st->st_atimespec = fcr->atime;
   1966  1.48  christos 	st->st_mtimespec = fcr->mtime;
   1967  1.48  christos 	st->st_ctimespec = st->st_birthtimespec = fcr->btime;
   1968  1.48  christos 	KERNEL_UNLOCK_ONE(NULL);
   1969  1.48  christos 	return 0;
   1970  1.48  christos }
   1971  1.48  christos 
   1972  1.48  christos static int
   1973  1.36       tls cryptof_poll(struct file *fp, int events)
   1974  1.36       tls {
   1975  1.36       tls 	struct fcrypt *fcr = (struct fcrypt *)fp->f_data;
   1976  1.38     rmind 	int revents = 0;
   1977  1.36       tls 
   1978  1.36       tls 	if (!(events & (POLLIN | POLLRDNORM))) {
   1979  1.36       tls 		/* only support read and POLLIN */
   1980  1.36       tls 		return 0;
   1981  1.36       tls 	}
   1982  1.36       tls 
   1983  1.38     rmind 	mutex_spin_enter(&crypto_mtx);
   1984  1.36       tls 	if (TAILQ_EMPTY(&fcr->crp_ret_mq) && TAILQ_EMPTY(&fcr->crp_ret_mkq)) {
   1985  1.38     rmind 		/* no completed requests pending, save the poll for later */
   1986  1.36       tls 		selrecord(curlwp, &fcr->sinfo);
   1987  1.36       tls 	} else {
   1988  1.36       tls 		/* let the app(s) know that there are completed requests */
   1989  1.38     rmind 		revents = events & (POLLIN | POLLRDNORM);
   1990  1.36       tls 	}
   1991  1.38     rmind 	mutex_spin_exit(&crypto_mtx);
   1992  1.38     rmind 
   1993  1.38     rmind 	return revents;
   1994  1.36       tls }
   1995  1.36       tls 
   1996  1.15   thorpej /*
   1997  1.15   thorpej  * Pseudo-device initialization routine for /dev/crypto
   1998  1.15   thorpej  */
   1999  1.15   thorpej void	cryptoattach(int);
   2000  1.15   thorpej 
   2001  1.15   thorpej void
   2002  1.25  christos cryptoattach(int num)
   2003  1.15   thorpej {
   2004  1.29       tls 	pool_init(&fcrpl, sizeof(struct fcrypt), 0, 0, 0, "fcrpl",
   2005  1.42  christos 	    NULL, IPL_NET);	/* XXX IPL_NET ("splcrypto") */
   2006  1.29       tls 	pool_init(&csepl, sizeof(struct csession), 0, 0, 0, "csepl",
   2007  1.42  christos 	    NULL, IPL_NET);	/* XXX IPL_NET ("splcrypto") */
   2008  1.29       tls 
   2009  1.29       tls 	/*
   2010  1.29       tls 	 * Preallocate space for 64 users, with 5 sessions each.
   2011  1.29       tls 	 * (consider that a TLS protocol session requires at least
   2012  1.29       tls 	 * 3DES, MD5, and SHA1 (both hashes are used in the PRF) for
   2013  1.29       tls 	 * the negotiation, plus HMAC_SHA1 for the actual SSL records,
   2014  1.29       tls 	 * consuming one session here for each algorithm.
   2015  1.29       tls 	 */
   2016  1.29       tls 	pool_prime(&fcrpl, 64);
   2017  1.29       tls 	pool_prime(&csepl, 64 * 5);
   2018  1.15   thorpej }
   2019