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cryptodev.c revision 1.42
      1  1.42  christos /*	$NetBSD: cryptodev.c,v 1.42 2008/05/24 16:28:58 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  1.42  christos __KERNEL_RCSID(0, "$NetBSD: cryptodev.c,v 1.42 2008/05/24 16:28:58 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   1.1  jonathan 
     88  1.33       tls #include "opt_ocf.h"
     89   1.1  jonathan #include <opencrypto/cryptodev.h>
     90   1.1  jonathan #include <opencrypto/xform.h>
     91   1.1  jonathan 
     92   1.1  jonathan struct csession {
     93   1.1  jonathan 	TAILQ_ENTRY(csession) next;
     94   1.1  jonathan 	u_int64_t	sid;
     95   1.1  jonathan 	u_int32_t	ses;
     96   1.1  jonathan 
     97   1.1  jonathan 	u_int32_t	cipher;
     98   1.1  jonathan 	struct enc_xform *txform;
     99   1.1  jonathan 	u_int32_t	mac;
    100   1.1  jonathan 	struct auth_hash *thash;
    101   1.1  jonathan 
    102  1.26  christos 	void *		key;
    103   1.1  jonathan 	int		keylen;
    104   1.1  jonathan 	u_char		tmp_iv[EALG_MAX_BLOCK_LEN];
    105   1.1  jonathan 
    106  1.26  christos 	void *		mackey;
    107   1.1  jonathan 	int		mackeylen;
    108   1.1  jonathan 	u_char		tmp_mac[CRYPTO_MAX_MAC_LEN];
    109   1.1  jonathan 
    110  1.29       tls 	struct iovec	iovec[1];	/* user requests never have more */
    111   1.1  jonathan 	struct uio	uio;
    112   1.1  jonathan 	int		error;
    113   1.1  jonathan };
    114   1.1  jonathan 
    115   1.1  jonathan struct fcrypt {
    116   1.1  jonathan 	TAILQ_HEAD(csessionlist, csession) csessions;
    117  1.36       tls 	TAILQ_HEAD(crprethead, cryptop) crp_ret_mq;
    118  1.36       tls 	TAILQ_HEAD(krprethead, cryptkop) crp_ret_mkq;
    119   1.1  jonathan 	int		sesn;
    120  1.36       tls 	struct selinfo	sinfo;
    121  1.36       tls 	u_int32_t	requestid;
    122   1.1  jonathan };
    123   1.1  jonathan 
    124  1.29       tls /* For our fixed-size allocations */
    125  1.38     rmind static struct pool fcrpl;
    126  1.38     rmind static struct pool csepl;
    127   1.1  jonathan 
    128   1.1  jonathan /* Declaration of master device (fd-cloning/ctxt-allocating) entrypoints */
    129  1.16  christos static int	cryptoopen(dev_t dev, int flag, int mode, struct lwp *l);
    130   1.1  jonathan static int	cryptoread(dev_t dev, struct uio *uio, int ioflag);
    131   1.1  jonathan static int	cryptowrite(dev_t dev, struct uio *uio, int ioflag);
    132  1.16  christos static int	cryptoselect(dev_t dev, int rw, struct lwp *l);
    133   1.1  jonathan 
    134   1.1  jonathan /* Declaration of cloned-device (per-ctxt) entrypoints */
    135  1.36       tls static int	cryptof_read(struct file *, off_t *, struct uio *,
    136  1.42  christos     kauth_cred_t, int);
    137  1.36       tls static int	cryptof_write(struct file *, off_t *, struct uio *,
    138  1.42  christos     kauth_cred_t, int);
    139  1.36       tls static int	cryptof_ioctl(struct file *, u_long, void *);
    140  1.36       tls static int	cryptof_close(struct file *);
    141  1.36       tls static int 	cryptof_poll(struct file *, int);
    142   1.1  jonathan 
    143  1.12  christos static const struct fileops cryptofops = {
    144  1.42  christos 	cryptof_read,
    145  1.42  christos 	cryptof_write,
    146  1.42  christos 	cryptof_ioctl,
    147  1.42  christos 	fnullop_fcntl,
    148  1.42  christos 	cryptof_poll,
    149  1.42  christos 	fbadop_stat,
    150  1.42  christos 	cryptof_close,
    151  1.42  christos 	fnullop_kqfilter
    152   1.1  jonathan };
    153   1.1  jonathan 
    154   1.1  jonathan static struct	csession *csefind(struct fcrypt *, u_int);
    155   1.1  jonathan static int	csedelete(struct fcrypt *, struct csession *);
    156   1.1  jonathan static struct	csession *cseadd(struct fcrypt *, struct csession *);
    157  1.42  christos static struct	csession *csecreate(struct fcrypt *, u_int64_t, void *,
    158  1.42  christos     u_int64_t, void *, u_int64_t, u_int32_t, u_int32_t, struct enc_xform *,
    159   1.1  jonathan     struct auth_hash *);
    160   1.1  jonathan static int	csefree(struct csession *);
    161   1.1  jonathan 
    162  1.42  christos static int	cryptodev_op(struct csession *, struct crypt_op *,
    163  1.42  christos     struct lwp *);
    164  1.42  christos static int	cryptodev_mop(struct fcrypt *, struct crypt_n_op *, int,
    165  1.42  christos     struct lwp *);
    166   1.1  jonathan static int	cryptodev_key(struct crypt_kop *);
    167  1.36       tls static int	cryptodev_mkey(struct fcrypt *, struct crypt_n_kop *, int);
    168  1.36       tls static int	cryptodev_session(struct fcrypt *, struct session_op *);
    169  1.42  christos static int	cryptodev_msession(struct fcrypt *, struct session_n_op *, int);
    170  1.36       tls static int	cryptodev_msessionfin(struct fcrypt *, int, u_int32_t *);
    171   1.1  jonathan 
    172   1.1  jonathan static int	cryptodev_cb(void *);
    173   1.1  jonathan static int	cryptodevkey_cb(void *);
    174   1.1  jonathan 
    175  1.36       tls static int	cryptodev_mcb(void *);
    176  1.36       tls static int	cryptodevkey_mcb(void *);
    177  1.36       tls 
    178  1.36       tls static int 	cryptodev_getmstatus(struct fcrypt *, struct crypt_result *,
    179  1.42  christos     int);
    180  1.36       tls static int	cryptodev_getstatus(struct fcrypt *, struct crypt_result *);
    181  1.36       tls 
    182   1.9  jonathan /*
    183   1.9  jonathan  * sysctl-able control variables for /dev/crypto now defined in crypto.c:
    184   1.9  jonathan  * crypto_usercrypto, crypto_userasmcrypto, crypto_devallowsoft.
    185   1.9  jonathan  */
    186   1.1  jonathan 
    187   1.1  jonathan /* ARGSUSED */
    188   1.1  jonathan int
    189  1.35        ad cryptof_read(file_t *fp, off_t *poff,
    190  1.25  christos     struct uio *uio, kauth_cred_t cred, int flags)
    191   1.1  jonathan {
    192  1.42  christos 	return EIO;
    193   1.1  jonathan }
    194   1.1  jonathan 
    195   1.1  jonathan /* ARGSUSED */
    196   1.1  jonathan int
    197  1.35        ad cryptof_write(file_t *fp, off_t *poff,
    198  1.25  christos     struct uio *uio, kauth_cred_t cred, int flags)
    199   1.1  jonathan {
    200  1.42  christos 	return EIO;
    201   1.1  jonathan }
    202   1.1  jonathan 
    203   1.1  jonathan /* ARGSUSED */
    204   1.1  jonathan int
    205  1.36       tls cryptof_ioctl(struct file *fp, u_long cmd, void *data)
    206   1.1  jonathan {
    207  1.35        ad 	struct fcrypt *fcr = fp->f_data;
    208   1.1  jonathan 	struct csession *cse;
    209   1.1  jonathan 	struct session_op *sop;
    210  1.36       tls 	struct session_n_op *snop;
    211   1.1  jonathan 	struct crypt_op *cop;
    212  1.36       tls 	struct crypt_mop *mop;
    213  1.36       tls 	struct crypt_mkop *mkop;
    214  1.36       tls 	struct crypt_n_op *cnop;
    215  1.36       tls 	struct crypt_n_kop *knop;
    216  1.36       tls 	struct crypt_sgop *sgop;
    217  1.36       tls 	struct crypt_sfop *sfop;
    218  1.36       tls 	struct cryptret *crypt_ret;
    219  1.36       tls 	struct crypt_result *crypt_res;
    220   1.1  jonathan 	u_int32_t ses;
    221  1.36       tls 	u_int32_t *sesid;
    222   1.1  jonathan 	int error = 0;
    223  1.36       tls 	size_t count;
    224   1.1  jonathan 
    225  1.29       tls 	/* backwards compatibility */
    226  1.35        ad         file_t *criofp;
    227  1.29       tls 	struct fcrypt *criofcr;
    228  1.29       tls 	int criofd;
    229  1.29       tls 
    230  1.36       tls 	switch (cmd) {
    231  1.29       tls         case CRIOGET:   /* XXX deprecated, remove after 5.0 */
    232  1.36       tls 		if ((error = fd_allocfile(&criofp, &criofd)) != 0)
    233  1.36       tls 			return error;
    234  1.36       tls 		criofcr = pool_get(&fcrpl, PR_WAITOK);
    235  1.33       tls 		mutex_spin_enter(&crypto_mtx);
    236  1.36       tls 		TAILQ_INIT(&criofcr->csessions);
    237  1.36       tls 		TAILQ_INIT(&criofcr->crp_ret_mq);
    238  1.36       tls 		TAILQ_INIT(&criofcr->crp_ret_mkq);
    239  1.36       tls 		selinit(&criofcr->sinfo);
    240  1.36       tls 
    241  1.29       tls                 /*
    242  1.29       tls                  * Don't ever return session 0, to allow detection of
    243  1.29       tls                  * failed creation attempts with multi-create ioctl.
    244  1.29       tls                  */
    245  1.36       tls 		criofcr->sesn = 1;
    246  1.36       tls 		criofcr->requestid = 1;
    247  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    248  1.36       tls 		(void)fd_clone(criofp, criofd, (FREAD|FWRITE),
    249  1.29       tls 			      &cryptofops, criofcr);
    250  1.36       tls 		*(u_int32_t *)data = criofd;
    251  1.29       tls 		return error;
    252  1.36       tls 		break;
    253   1.1  jonathan 	case CIOCGSESSION:
    254   1.1  jonathan 		sop = (struct session_op *)data;
    255  1.36       tls 		error = cryptodev_session(fcr, sop);
    256  1.36       tls 		break;
    257  1.36       tls 	case CIOCNGSESSION:
    258  1.36       tls 		sgop = (struct crypt_sgop *)data;
    259  1.36       tls 		snop = kmem_alloc((sgop->count *
    260  1.36       tls 				  sizeof(struct session_n_op)), KM_SLEEP);
    261  1.36       tls 		error = copyin(sgop->sessions, snop, sgop->count *
    262  1.36       tls 			       sizeof(struct session_n_op));
    263  1.36       tls 		if (error) {
    264  1.36       tls 			goto mbail;
    265   1.1  jonathan 		}
    266   1.1  jonathan 
    267  1.36       tls 		error = cryptodev_msession(fcr, snop, sgop->count);
    268  1.36       tls 		if (error) {
    269  1.36       tls 			goto mbail;
    270   1.1  jonathan 		}
    271   1.1  jonathan 
    272  1.36       tls 		error = copyout(snop, sgop->sessions, sgop->count *
    273  1.42  christos 		    sizeof(struct session_n_op));
    274  1.36       tls mbail:
    275  1.39       tls 		kmem_free(snop, sgop->count * sizeof(struct session_n_op));
    276   1.1  jonathan 		break;
    277   1.1  jonathan 	case CIOCFSESSION:
    278  1.33       tls 		mutex_spin_enter(&crypto_mtx);
    279   1.1  jonathan 		ses = *(u_int32_t *)data;
    280   1.1  jonathan 		cse = csefind(fcr, ses);
    281   1.1  jonathan 		if (cse == NULL)
    282  1.42  christos 			return EINVAL;
    283   1.1  jonathan 		csedelete(fcr, cse);
    284   1.1  jonathan 		error = csefree(cse);
    285  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    286   1.1  jonathan 		break;
    287  1.36       tls 	case CIOCNFSESSION:
    288  1.36       tls 		sfop = (struct crypt_sfop *)data;
    289  1.36       tls 		sesid = kmem_alloc((sfop->count * sizeof(u_int32_t)),
    290  1.42  christos 		    KM_SLEEP);
    291  1.42  christos 		error = copyin(sfop->sesid, sesid,
    292  1.42  christos 		    (sfop->count * sizeof(u_int32_t)));
    293  1.36       tls 		if (!error) {
    294  1.36       tls 			error = cryptodev_msessionfin(fcr, sfop->count, sesid);
    295  1.36       tls 		}
    296  1.36       tls 		kmem_free(sesid, (sfop->count * sizeof(u_int32_t)));
    297  1.36       tls 		break;
    298   1.1  jonathan 	case CIOCCRYPT:
    299  1.33       tls 		mutex_spin_enter(&crypto_mtx);
    300   1.1  jonathan 		cop = (struct crypt_op *)data;
    301   1.1  jonathan 		cse = csefind(fcr, cop->ses);
    302  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    303  1.18  christos 		if (cse == NULL) {
    304  1.18  christos 			DPRINTF(("csefind failed\n"));
    305  1.42  christos 			return EINVAL;
    306  1.18  christos 		}
    307  1.35        ad 		error = cryptodev_op(cse, cop, curlwp);
    308  1.34       tls 		DPRINTF(("cryptodev_op error = %d\n", error));
    309   1.1  jonathan 		break;
    310  1.36       tls 	case CIOCNCRYPTM:
    311  1.36       tls 		mop = (struct crypt_mop *)data;
    312  1.36       tls 		cnop = kmem_alloc((mop->count * sizeof(struct crypt_n_op)),
    313  1.42  christos 		    KM_SLEEP);
    314  1.42  christos 		error = copyin(mop->reqs, cnop,
    315  1.42  christos 		    (mop->count * sizeof(struct crypt_n_op)));
    316  1.36       tls 		if(!error) {
    317  1.42  christos 			error = cryptodev_mop(fcr, cnop, mop->count, curlwp);
    318  1.36       tls 			if (!error) {
    319  1.36       tls 				error = copyout(cnop, mop->reqs,
    320  1.42  christos 				    (mop->count * sizeof(struct crypt_n_op)));
    321  1.36       tls 			}
    322  1.36       tls 		}
    323  1.36       tls 		kmem_free(cnop, (mop->count * sizeof(struct crypt_n_op)));
    324  1.36       tls 		break;
    325   1.1  jonathan 	case CIOCKEY:
    326   1.1  jonathan 		error = cryptodev_key((struct crypt_kop *)data);
    327  1.34       tls 		DPRINTF(("cryptodev_key error = %d\n", error));
    328   1.1  jonathan 		break;
    329  1.36       tls 	case CIOCNFKEYM:
    330  1.36       tls 		mkop = (struct crypt_mkop *)data;
    331  1.36       tls 		knop = kmem_alloc((mkop->count * sizeof(struct crypt_n_kop)),
    332  1.42  christos 		    KM_SLEEP);
    333  1.36       tls 		error = copyin(mkop->reqs, knop,
    334  1.42  christos 		    (mkop->count * sizeof(struct crypt_n_kop)));
    335  1.36       tls 		if (!error) {
    336  1.36       tls 			error = cryptodev_mkey(fcr, knop, mkop->count);
    337  1.36       tls 			if (!error)
    338  1.36       tls 				error = copyout(knop, mkop->reqs,
    339  1.42  christos 				    (mkop->count * sizeof(struct crypt_n_kop)));
    340  1.36       tls 		}
    341  1.36       tls 		kmem_free(knop, (mkop->count * sizeof(struct crypt_n_kop)));
    342  1.36       tls 		break;
    343   1.1  jonathan 	case CIOCASYMFEAT:
    344   1.1  jonathan 		error = crypto_getfeat((int *)data);
    345   1.1  jonathan 		break;
    346  1.36       tls 	case CIOCNCRYPTRETM:
    347  1.36       tls 		crypt_ret = (struct cryptret *)data;
    348  1.36       tls 		count = crypt_ret->count;
    349  1.42  christos 		crypt_res = kmem_alloc((count * sizeof(struct crypt_result)),
    350  1.42  christos 		    KM_SLEEP);
    351  1.36       tls 		error = copyin(crypt_ret->results, crypt_res,
    352  1.42  christos 		    (count * sizeof(struct crypt_result)));
    353  1.36       tls 		if (error)
    354  1.36       tls 			goto reterr;
    355  1.36       tls 		crypt_ret->count = cryptodev_getmstatus(fcr, crypt_res,
    356  1.42  christos 		    crypt_ret->count);
    357  1.36       tls 		/* sanity check count */
    358  1.36       tls 		if (crypt_ret->count > count) {
    359  1.37    dogcow 			printf("%s.%d: error returned count %zd > original "
    360  1.42  christos 			    " count %zd\n",
    361  1.42  christos 			    __FILE__, __LINE__, crypt_ret->count, count);
    362  1.36       tls 			crypt_ret->count = count;
    363  1.36       tls 
    364  1.36       tls 		}
    365  1.36       tls 		error = copyout(crypt_res, crypt_ret->results,
    366  1.42  christos 		    (crypt_ret->count * sizeof(struct crypt_result)));
    367  1.36       tls reterr:
    368  1.42  christos 		kmem_free(crypt_res, (count * sizeof(struct crypt_result)));
    369  1.36       tls 		break;
    370  1.36       tls 	case CIOCNCRYPTRET:
    371  1.36       tls 		error = cryptodev_getstatus(fcr, (struct crypt_result *)data);
    372  1.36       tls 		break;
    373   1.1  jonathan 	default:
    374  1.18  christos 		DPRINTF(("invalid ioctl cmd %ld\n", cmd));
    375   1.1  jonathan 		error = EINVAL;
    376   1.1  jonathan 	}
    377  1.42  christos 	return error;
    378   1.1  jonathan }
    379   1.1  jonathan 
    380   1.1  jonathan static int
    381  1.25  christos cryptodev_op(struct csession *cse, struct crypt_op *cop, struct lwp *l)
    382   1.1  jonathan {
    383   1.1  jonathan 	struct cryptop *crp = NULL;
    384   1.1  jonathan 	struct cryptodesc *crde = NULL, *crda = NULL;
    385  1.33       tls 	int error;
    386   1.1  jonathan 
    387   1.1  jonathan 	if (cop->len > 256*1024-4)
    388  1.42  christos 		return E2BIG;
    389   1.1  jonathan 
    390  1.13  jonathan 	if (cse->txform) {
    391  1.13  jonathan 		if (cop->len == 0 || (cop->len % cse->txform->blocksize) != 0)
    392  1.42  christos 			return EINVAL;
    393  1.13  jonathan 	}
    394   1.1  jonathan 
    395  1.42  christos 	(void)memset(&cse->uio, 0, sizeof(cse->uio));
    396   1.1  jonathan 	cse->uio.uio_iovcnt = 1;
    397   1.1  jonathan 	cse->uio.uio_resid = 0;
    398   1.1  jonathan 	cse->uio.uio_rw = UIO_WRITE;
    399   1.1  jonathan 	cse->uio.uio_iov = cse->iovec;
    400  1.17      yamt 	UIO_SETUP_SYSSPACE(&cse->uio);
    401  1.29       tls 	memset(&cse->iovec, 0, sizeof(cse->iovec));
    402   1.1  jonathan 	cse->uio.uio_iov[0].iov_len = cop->len;
    403  1.36       tls 	cse->uio.uio_iov[0].iov_base = kmem_alloc(cop->len, KM_SLEEP);
    404  1.29       tls 	cse->uio.uio_resid = cse->uio.uio_iov[0].iov_len;
    405   1.1  jonathan 
    406   1.1  jonathan 	crp = crypto_getreq((cse->txform != NULL) + (cse->thash != NULL));
    407   1.1  jonathan 	if (crp == NULL) {
    408   1.1  jonathan 		error = ENOMEM;
    409   1.1  jonathan 		goto bail;
    410   1.1  jonathan 	}
    411   1.1  jonathan 
    412   1.1  jonathan 	if (cse->thash) {
    413   1.1  jonathan 		crda = crp->crp_desc;
    414   1.1  jonathan 		if (cse->txform)
    415   1.1  jonathan 			crde = crda->crd_next;
    416   1.1  jonathan 	} else {
    417   1.1  jonathan 		if (cse->txform)
    418   1.1  jonathan 			crde = crp->crp_desc;
    419   1.1  jonathan 		else {
    420   1.1  jonathan 			error = EINVAL;
    421   1.1  jonathan 			goto bail;
    422   1.1  jonathan 		}
    423   1.1  jonathan 	}
    424   1.1  jonathan 
    425   1.1  jonathan 	if ((error = copyin(cop->src, cse->uio.uio_iov[0].iov_base, cop->len)))
    426  1.36       tls 	{
    427  1.36       tls 		printf("copyin failed %s %d \n", (char *)cop->src, error);
    428   1.1  jonathan 		goto bail;
    429  1.36       tls 	}
    430   1.1  jonathan 
    431   1.1  jonathan 	if (crda) {
    432   1.1  jonathan 		crda->crd_skip = 0;
    433   1.1  jonathan 		crda->crd_len = cop->len;
    434   1.1  jonathan 		crda->crd_inject = 0;	/* ??? */
    435   1.1  jonathan 
    436   1.1  jonathan 		crda->crd_alg = cse->mac;
    437   1.1  jonathan 		crda->crd_key = cse->mackey;
    438   1.1  jonathan 		crda->crd_klen = cse->mackeylen * 8;
    439   1.1  jonathan 	}
    440   1.1  jonathan 
    441   1.1  jonathan 	if (crde) {
    442   1.1  jonathan 		if (cop->op == COP_ENCRYPT)
    443   1.1  jonathan 			crde->crd_flags |= CRD_F_ENCRYPT;
    444   1.1  jonathan 		else
    445   1.1  jonathan 			crde->crd_flags &= ~CRD_F_ENCRYPT;
    446   1.1  jonathan 		crde->crd_len = cop->len;
    447   1.1  jonathan 		crde->crd_inject = 0;
    448   1.1  jonathan 
    449   1.1  jonathan 		crde->crd_alg = cse->cipher;
    450   1.1  jonathan 		crde->crd_key = cse->key;
    451   1.1  jonathan 		crde->crd_klen = cse->keylen * 8;
    452   1.1  jonathan 	}
    453   1.1  jonathan 
    454   1.1  jonathan 	crp->crp_ilen = cop->len;
    455  1.36       tls 	crp->crp_flags = CRYPTO_F_IOV | (cop->flags & COP_F_BATCH);
    456  1.26  christos 	crp->crp_buf = (void *)&cse->uio;
    457   1.1  jonathan 	crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
    458   1.1  jonathan 	crp->crp_sid = cse->sid;
    459   1.1  jonathan 	crp->crp_opaque = (void *)cse;
    460   1.1  jonathan 
    461   1.1  jonathan 	if (cop->iv) {
    462   1.1  jonathan 		if (crde == NULL) {
    463   1.1  jonathan 			error = EINVAL;
    464   1.1  jonathan 			goto bail;
    465   1.1  jonathan 		}
    466   1.1  jonathan 		if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
    467   1.1  jonathan 			error = EINVAL;
    468   1.1  jonathan 			goto bail;
    469   1.1  jonathan 		}
    470  1.36       tls 		if ((error = copyin(cop->iv, cse->tmp_iv,
    471  1.42  christos 		    cse->txform->blocksize)))
    472   1.1  jonathan 			goto bail;
    473  1.42  christos 		(void)memcpy(crde->crd_iv, cse->tmp_iv, cse->txform->blocksize);
    474   1.1  jonathan 		crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
    475   1.1  jonathan 		crde->crd_skip = 0;
    476   1.1  jonathan 	} else if (crde) {
    477  1.20  christos 		if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
    478  1.20  christos 			crde->crd_skip = 0;
    479  1.20  christos 		} else {
    480  1.20  christos 			crde->crd_flags |= CRD_F_IV_PRESENT;
    481  1.20  christos 			crde->crd_skip = cse->txform->blocksize;
    482  1.20  christos 			crde->crd_len -= cse->txform->blocksize;
    483  1.20  christos 		}
    484   1.1  jonathan 	}
    485   1.1  jonathan 
    486   1.1  jonathan 	if (cop->mac) {
    487   1.1  jonathan 		if (crda == NULL) {
    488   1.1  jonathan 			error = EINVAL;
    489   1.1  jonathan 			goto bail;
    490   1.1  jonathan 		}
    491   1.1  jonathan 		crp->crp_mac=cse->tmp_mac;
    492   1.1  jonathan 	}
    493   1.1  jonathan 
    494  1.33       tls 	/*
    495  1.33       tls 	 * XXX there was a comment here which said that we went to
    496  1.33       tls 	 * XXX splcrypto() but needed to only if CRYPTO_F_CBIMM,
    497  1.33       tls 	 * XXX disabled on NetBSD since 1.6O due to a race condition.
    498  1.33       tls 	 * XXX But crypto_dispatch went to splcrypto() itself!  (And
    499  1.33       tls 	 * XXX now takes the crypto_mtx mutex itself).  We do, however,
    500  1.33       tls 	 * XXX need to hold the mutex across the call to cv_wait().
    501  1.33       tls 	 * XXX     (should we arrange for crypto_dispatch to return to
    502  1.33       tls 	 * XXX      us with it held?  it seems quite ugly to do so.)
    503  1.33       tls 	 */
    504  1.36       tls #ifdef notyet
    505  1.36       tls eagain:
    506  1.36       tls #endif
    507   1.1  jonathan 	error = crypto_dispatch(crp);
    508  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    509  1.36       tls 
    510  1.36       tls 	switch (error) {
    511  1.36       tls #ifdef notyet	/* don't loop forever -- but EAGAIN not possible here yet */
    512  1.36       tls 	case EAGAIN:
    513  1.36       tls 		mutex_spin_exit(&crypto_mtx);
    514  1.36       tls 		goto eagain;
    515  1.36       tls 		break;
    516  1.36       tls #endif
    517  1.36       tls 	case 0:
    518  1.36       tls 		break;
    519  1.36       tls 	default:
    520  1.33       tls 		DPRINTF(("cryptodev_op: not waiting, error.\n"));
    521  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    522   1.1  jonathan 		goto bail;
    523   1.1  jonathan 	}
    524  1.36       tls 
    525  1.33       tls 	while (!(crp->crp_flags & CRYPTO_F_DONE)) {
    526  1.33       tls 		DPRINTF(("cryptodev_op: sleeping on cv %08x for crp %08x\n", \
    527  1.42  christos 		    (uint32_t)&crp->crp_cv, (uint32_t)crp));
    528  1.33       tls 		cv_wait(&crp->crp_cv, &crypto_mtx);	/* XXX cv_wait_sig? */
    529  1.33       tls 	}
    530  1.33       tls 	if (crp->crp_flags & CRYPTO_F_ONRETQ) {
    531  1.33       tls 		DPRINTF(("cryptodev_op: DONE, not woken by cryptoret.\n"));
    532  1.33       tls 		(void)crypto_ret_q_remove(crp);
    533  1.33       tls 	}
    534  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    535   1.1  jonathan 
    536   1.1  jonathan 	if (crp->crp_etype != 0) {
    537  1.34       tls 		DPRINTF(("cryptodev_op: crp_etype %d\n", crp->crp_etype));
    538   1.1  jonathan 		error = crp->crp_etype;
    539   1.1  jonathan 		goto bail;
    540   1.1  jonathan 	}
    541   1.1  jonathan 
    542   1.1  jonathan 	if (cse->error) {
    543  1.34       tls 		DPRINTF(("cryptodev_op: cse->error %d\n", cse->error));
    544   1.1  jonathan 		error = cse->error;
    545   1.1  jonathan 		goto bail;
    546   1.1  jonathan 	}
    547   1.1  jonathan 
    548   1.1  jonathan 	if (cop->dst &&
    549  1.36       tls 	    (error = copyout(cse->uio.uio_iov[0].iov_base, cop->dst, cop->len)))
    550  1.36       tls 	{
    551  1.34       tls 		DPRINTF(("cryptodev_op: copyout error %d\n", error));
    552   1.1  jonathan 		goto bail;
    553  1.34       tls 	}
    554   1.1  jonathan 
    555   1.1  jonathan 	if (cop->mac &&
    556  1.34       tls 	    (error = copyout(crp->crp_mac, cop->mac, cse->thash->authsize))) {
    557  1.34       tls 		DPRINTF(("cryptodev_op: mac copyout error %d\n", error));
    558   1.1  jonathan 		goto bail;
    559  1.34       tls 	}
    560   1.1  jonathan 
    561   1.1  jonathan bail:
    562   1.1  jonathan 	if (crp)
    563   1.1  jonathan 		crypto_freereq(crp);
    564   1.1  jonathan 	if (cse->uio.uio_iov[0].iov_base)
    565  1.36       tls 		kmem_free(cse->uio.uio_iov[0].iov_base,
    566  1.42  christos 		    cse->uio.uio_iov[0].iov_len);
    567   1.1  jonathan 
    568  1.42  christos 	return error;
    569   1.1  jonathan }
    570   1.1  jonathan 
    571   1.1  jonathan static int
    572   1.1  jonathan cryptodev_cb(void *op)
    573   1.1  jonathan {
    574   1.1  jonathan 	struct cryptop *crp = (struct cryptop *) op;
    575   1.1  jonathan 	struct csession *cse = (struct csession *)crp->crp_opaque;
    576  1.33       tls 	int error = 0;
    577   1.1  jonathan 
    578  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    579   1.1  jonathan 	cse->error = crp->crp_etype;
    580  1.33       tls 	if (crp->crp_etype == EAGAIN) {
    581  1.33       tls 		/* always drop mutex to call dispatch routine */
    582  1.33       tls 		mutex_spin_exit(&crypto_mtx);
    583  1.33       tls 		error = crypto_dispatch(crp);
    584  1.33       tls 		mutex_spin_enter(&crypto_mtx);
    585  1.33       tls 	}
    586  1.33       tls 	if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
    587  1.33       tls 		cv_signal(&crp->crp_cv);
    588  1.33       tls 	}
    589  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    590  1.42  christos 	return 0;
    591   1.1  jonathan }
    592   1.1  jonathan 
    593   1.1  jonathan static int
    594  1.36       tls cryptodev_mcb(void *op)
    595  1.36       tls {
    596  1.36       tls 	struct cryptop *crp = (struct cryptop *) op;
    597  1.36       tls 	struct csession *cse = (struct csession *)crp->crp_opaque;
    598  1.36       tls 	int  error=0;
    599  1.36       tls 
    600  1.36       tls 	mutex_spin_enter(&crypto_mtx);
    601  1.36       tls 	cse->error = crp->crp_etype;
    602  1.36       tls 	if (crp->crp_etype == EAGAIN) {
    603  1.36       tls 		mutex_spin_exit(&crypto_mtx);
    604  1.36       tls 		error = crypto_dispatch(crp);
    605  1.36       tls 		mutex_spin_enter(&crypto_mtx);
    606  1.36       tls 	}
    607  1.36       tls 	if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
    608  1.36       tls 		cv_signal(&crp->crp_cv);
    609  1.36       tls 	}
    610  1.36       tls 
    611  1.36       tls 	TAILQ_INSERT_TAIL(&crp->fcrp->crp_ret_mq, crp, crp_next);
    612  1.38     rmind 	selnotify(&crp->fcrp->sinfo, 0, 0);
    613  1.36       tls 	mutex_spin_exit(&crypto_mtx);
    614  1.42  christos 	return 0;
    615  1.36       tls }
    616  1.36       tls 
    617  1.36       tls static int
    618   1.1  jonathan cryptodevkey_cb(void *op)
    619   1.1  jonathan {
    620  1.42  christos 	struct cryptkop *krp = op;
    621  1.36       tls 
    622  1.36       tls 	mutex_spin_enter(&crypto_mtx);
    623  1.36       tls 	cv_signal(&krp->krp_cv);
    624  1.36       tls 	mutex_spin_exit(&crypto_mtx);
    625  1.42  christos 	return 0;
    626  1.36       tls }
    627  1.36       tls 
    628  1.36       tls static int
    629  1.36       tls cryptodevkey_mcb(void *op)
    630  1.36       tls {
    631  1.42  christos 	struct cryptkop *krp = op;
    632   1.1  jonathan 
    633  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    634  1.33       tls 	cv_signal(&krp->krp_cv);
    635  1.36       tls 	TAILQ_INSERT_TAIL(&krp->fcrp->crp_ret_mkq, krp, krp_next);
    636  1.38     rmind 	selnotify(&krp->fcrp->sinfo, 0, 0);
    637  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    638  1.42  christos 	return 0;
    639   1.1  jonathan }
    640   1.1  jonathan 
    641   1.1  jonathan static int
    642   1.1  jonathan cryptodev_key(struct crypt_kop *kop)
    643   1.1  jonathan {
    644   1.1  jonathan 	struct cryptkop *krp = NULL;
    645   1.1  jonathan 	int error = EINVAL;
    646   1.1  jonathan 	int in, out, size, i;
    647   1.1  jonathan 
    648  1.42  christos 	if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM)
    649  1.42  christos 		return EFBIG;
    650   1.1  jonathan 
    651   1.1  jonathan 	in = kop->crk_iparams;
    652   1.1  jonathan 	out = kop->crk_oparams;
    653   1.1  jonathan 	switch (kop->crk_op) {
    654   1.1  jonathan 	case CRK_MOD_EXP:
    655   1.1  jonathan 		if (in == 3 && out == 1)
    656   1.1  jonathan 			break;
    657  1.42  christos 		return EINVAL;
    658   1.1  jonathan 	case CRK_MOD_EXP_CRT:
    659   1.1  jonathan 		if (in == 6 && out == 1)
    660   1.1  jonathan 			break;
    661  1.42  christos 		return EINVAL;
    662   1.1  jonathan 	case CRK_DSA_SIGN:
    663   1.1  jonathan 		if (in == 5 && out == 2)
    664   1.1  jonathan 			break;
    665  1.42  christos 		return EINVAL;
    666   1.1  jonathan 	case CRK_DSA_VERIFY:
    667   1.1  jonathan 		if (in == 7 && out == 0)
    668   1.1  jonathan 			break;
    669  1.42  christos 		return EINVAL;
    670   1.1  jonathan 	case CRK_DH_COMPUTE_KEY:
    671   1.1  jonathan 		if (in == 3 && out == 1)
    672   1.1  jonathan 			break;
    673  1.42  christos 		return EINVAL;
    674  1.27       tls 	case CRK_MOD_ADD:
    675  1.27       tls 		if (in == 3 && out == 1)
    676  1.27       tls 			break;
    677  1.42  christos 		return EINVAL;
    678  1.27       tls 	case CRK_MOD_ADDINV:
    679  1.27       tls 		if (in == 2 && out == 1)
    680  1.27       tls 			break;
    681  1.42  christos 		return EINVAL;
    682  1.27       tls 	case CRK_MOD_SUB:
    683  1.27       tls 		if (in == 3 && out == 1)
    684  1.27       tls 			break;
    685  1.42  christos 		return EINVAL;
    686  1.27       tls 	case CRK_MOD_MULT:
    687  1.27       tls 		if (in == 3 && out == 1)
    688  1.27       tls 			break;
    689  1.42  christos 		return EINVAL;
    690  1.27       tls 	case CRK_MOD_MULTINV:
    691  1.27       tls 		if (in == 2 && out == 1)
    692  1.27       tls 			break;
    693  1.42  christos 		return EINVAL;
    694  1.27       tls 	case CRK_MOD:
    695  1.27       tls 		if (in == 2 && out == 1)
    696  1.27       tls 			break;
    697  1.42  christos 		return EINVAL;
    698   1.1  jonathan 	default:
    699  1.42  christos 		return EINVAL;
    700   1.1  jonathan 	}
    701   1.1  jonathan 
    702  1.33       tls 	krp = pool_get(&cryptkop_pool, PR_WAITOK);
    703  1.42  christos 	(void)memset(krp, 0, sizeof *krp);
    704  1.33       tls 	cv_init(&krp->krp_cv, "crykdev");
    705   1.1  jonathan 	krp->krp_op = kop->crk_op;
    706   1.1  jonathan 	krp->krp_status = kop->crk_status;
    707   1.1  jonathan 	krp->krp_iparams = kop->crk_iparams;
    708   1.1  jonathan 	krp->krp_oparams = kop->crk_oparams;
    709   1.1  jonathan 	krp->krp_status = 0;
    710   1.1  jonathan 	krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
    711   1.1  jonathan 
    712   1.1  jonathan 	for (i = 0; i < CRK_MAXPARAM; i++)
    713   1.1  jonathan 		krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
    714   1.1  jonathan 	for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
    715   1.1  jonathan 		size = (krp->krp_param[i].crp_nbits + 7) / 8;
    716   1.1  jonathan 		if (size == 0)
    717   1.1  jonathan 			continue;
    718  1.36       tls 		krp->krp_param[i].crp_p = kmem_alloc(size, KM_SLEEP);
    719   1.1  jonathan 		if (i >= krp->krp_iparams)
    720   1.1  jonathan 			continue;
    721  1.42  christos 		error = copyin(kop->crk_param[i].crp_p,
    722  1.42  christos 		    krp->krp_param[i].crp_p, size);
    723   1.1  jonathan 		if (error)
    724   1.1  jonathan 			goto fail;
    725   1.1  jonathan 	}
    726   1.1  jonathan 
    727   1.1  jonathan 	error = crypto_kdispatch(krp);
    728  1.33       tls 	if (error != 0) {
    729   1.1  jonathan 		goto fail;
    730  1.33       tls 	}
    731  1.33       tls 
    732  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    733  1.33       tls 	while (!(krp->krp_flags & CRYPTO_F_DONE)) {
    734  1.33       tls 		cv_wait(&krp->krp_cv, &crypto_mtx);	/* XXX cv_wait_sig? */
    735  1.33       tls 	}
    736  1.33       tls 	if (krp->krp_flags & CRYPTO_F_ONRETQ) {
    737  1.33       tls 		DPRINTF(("cryptodev_key: DONE early, not via cryptoret.\n"));
    738  1.33       tls 		(void)crypto_ret_kq_remove(krp);
    739  1.33       tls 	}
    740  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    741   1.1  jonathan 
    742   1.1  jonathan 	if (krp->krp_status != 0) {
    743  1.42  christos 		DPRINTF(("cryptodev_key: krp->krp_status 0x%08x\n",
    744  1.42  christos 		    krp->krp_status));
    745   1.1  jonathan 		error = krp->krp_status;
    746   1.1  jonathan 		goto fail;
    747   1.1  jonathan 	}
    748   1.1  jonathan 
    749  1.42  christos 	for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams;
    750  1.42  christos 	    i++) {
    751   1.1  jonathan 		size = (krp->krp_param[i].crp_nbits + 7) / 8;
    752   1.1  jonathan 		if (size == 0)
    753   1.1  jonathan 			continue;
    754  1.42  christos 		error = copyout(krp->krp_param[i].crp_p,
    755  1.42  christos 		    kop->crk_param[i].crp_p, size);
    756  1.34       tls 		if (error) {
    757  1.42  christos 			DPRINTF(("cryptodev_key: copyout oparam %d failed, "
    758  1.42  christos 			    "error=%d\n", i-krp->krp_iparams, error));
    759   1.1  jonathan 			goto fail;
    760  1.34       tls 		}
    761   1.1  jonathan 	}
    762   1.1  jonathan 
    763   1.1  jonathan fail:
    764   1.1  jonathan 	if (krp) {
    765   1.1  jonathan 		kop->crk_status = krp->krp_status;
    766   1.1  jonathan 		for (i = 0; i < CRK_MAXPARAM; i++) {
    767  1.36       tls 			struct crparam *kp = &(krp->krp_param[i]);
    768  1.36       tls 			if (krp->krp_param[i].crp_p) {
    769  1.36       tls 				size = (kp->crp_nbits + 7)  / 8;
    770  1.36       tls 				KASSERT(size > 0);
    771  1.42  christos 				(void)memset(kp->crp_p, 0, size);
    772  1.36       tls 				kmem_free(kp->crp_p, size);
    773  1.36       tls 			}
    774   1.1  jonathan 		}
    775  1.33       tls 		pool_put(&cryptkop_pool, krp);
    776   1.1  jonathan 	}
    777  1.34       tls 	DPRINTF(("cryptodev_key: error=0x%08x\n", error));
    778  1.42  christos 	return error;
    779   1.1  jonathan }
    780   1.1  jonathan 
    781   1.1  jonathan /* ARGSUSED */
    782   1.1  jonathan static int
    783  1.36       tls cryptof_close(struct file *fp)
    784   1.1  jonathan {
    785  1.35        ad 	struct fcrypt *fcr = fp->f_data;
    786   1.1  jonathan 	struct csession *cse;
    787   1.1  jonathan 
    788  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    789   1.1  jonathan 	while ((cse = TAILQ_FIRST(&fcr->csessions))) {
    790   1.1  jonathan 		TAILQ_REMOVE(&fcr->csessions, cse, next);
    791   1.1  jonathan 		(void)csefree(cse);
    792   1.1  jonathan 	}
    793  1.36       tls 	seldestroy(&fcr->sinfo);
    794   1.1  jonathan 	fp->f_data = NULL;
    795  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    796   1.1  jonathan 
    797  1.38     rmind 	pool_put(&fcrpl, fcr);
    798   1.1  jonathan 	return 0;
    799   1.1  jonathan }
    800   1.1  jonathan 
    801  1.33       tls /* csefind: call with crypto_mtx held. */
    802   1.1  jonathan static struct csession *
    803   1.1  jonathan csefind(struct fcrypt *fcr, u_int ses)
    804   1.1  jonathan {
    805  1.33       tls 	struct csession *cse, *ret = NULL;
    806   1.1  jonathan 
    807  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    808   1.1  jonathan 	TAILQ_FOREACH(cse, &fcr->csessions, next)
    809   1.1  jonathan 		if (cse->ses == ses)
    810  1.33       tls 			ret = cse;
    811  1.36       tls 
    812  1.42  christos 	return ret;
    813   1.1  jonathan }
    814   1.1  jonathan 
    815  1.33       tls /* csedelete: call with crypto_mtx held. */
    816   1.1  jonathan static int
    817   1.1  jonathan csedelete(struct fcrypt *fcr, struct csession *cse_del)
    818   1.1  jonathan {
    819   1.1  jonathan 	struct csession *cse;
    820  1.33       tls 	int ret = 0;
    821   1.1  jonathan 
    822  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    823   1.1  jonathan 	TAILQ_FOREACH(cse, &fcr->csessions, next) {
    824   1.1  jonathan 		if (cse == cse_del) {
    825   1.1  jonathan 			TAILQ_REMOVE(&fcr->csessions, cse, next);
    826  1.33       tls 			ret = 1;
    827   1.1  jonathan 		}
    828   1.1  jonathan 	}
    829  1.42  christos 	return ret;
    830   1.1  jonathan }
    831   1.1  jonathan 
    832  1.33       tls /* cseadd: call with crypto_mtx held. */
    833   1.1  jonathan static struct csession *
    834   1.1  jonathan cseadd(struct fcrypt *fcr, struct csession *cse)
    835   1.1  jonathan {
    836  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    837  1.33       tls 	/* don't let session ID wrap! */
    838  1.33       tls 	if (fcr->sesn + 1 == 0) return NULL;
    839   1.1  jonathan 	TAILQ_INSERT_TAIL(&fcr->csessions, cse, next);
    840   1.1  jonathan 	cse->ses = fcr->sesn++;
    841  1.42  christos 	return cse;
    842   1.1  jonathan }
    843   1.1  jonathan 
    844  1.33       tls /* csecreate: call with crypto_mtx held. */
    845   1.1  jonathan static struct csession *
    846  1.26  christos csecreate(struct fcrypt *fcr, u_int64_t sid, void *key, u_int64_t keylen,
    847  1.26  christos     void *mackey, u_int64_t mackeylen, u_int32_t cipher, u_int32_t mac,
    848   1.1  jonathan     struct enc_xform *txform, struct auth_hash *thash)
    849   1.1  jonathan {
    850   1.1  jonathan 	struct csession *cse;
    851   1.1  jonathan 
    852  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    853  1.29       tls 	cse = pool_get(&csepl, PR_NOWAIT);
    854   1.1  jonathan 	if (cse == NULL)
    855   1.1  jonathan 		return NULL;
    856   1.1  jonathan 	cse->key = key;
    857   1.1  jonathan 	cse->keylen = keylen/8;
    858   1.1  jonathan 	cse->mackey = mackey;
    859   1.1  jonathan 	cse->mackeylen = mackeylen/8;
    860   1.1  jonathan 	cse->sid = sid;
    861   1.1  jonathan 	cse->cipher = cipher;
    862   1.1  jonathan 	cse->mac = mac;
    863   1.1  jonathan 	cse->txform = txform;
    864   1.1  jonathan 	cse->thash = thash;
    865  1.34       tls 	cse->error = 0;
    866  1.28       tls 	if (cseadd(fcr, cse))
    867  1.42  christos 		return cse;
    868  1.28       tls 	else {
    869  1.33       tls 		pool_put(&csepl, cse);
    870  1.28       tls 		return NULL;
    871  1.28       tls 	}
    872   1.1  jonathan }
    873   1.1  jonathan 
    874  1.33       tls /* csefree: call with crypto_mtx held. */
    875   1.1  jonathan static int
    876   1.1  jonathan csefree(struct csession *cse)
    877   1.1  jonathan {
    878   1.1  jonathan 	int error;
    879   1.1  jonathan 
    880  1.33       tls 	KASSERT(mutex_owned(&crypto_mtx));
    881   1.1  jonathan 	error = crypto_freesession(cse->sid);
    882   1.1  jonathan 	if (cse->key)
    883  1.36       tls 		free(cse->key, M_XDATA);
    884   1.1  jonathan 	if (cse->mackey)
    885  1.36       tls 		free(cse->mackey, M_XDATA);
    886  1.29       tls 	pool_put(&csepl, cse);
    887  1.42  christos 	return error;
    888   1.1  jonathan }
    889   1.1  jonathan 
    890   1.1  jonathan static int
    891  1.25  christos cryptoopen(dev_t dev, int flag, int mode,
    892  1.25  christos     struct lwp *l)
    893   1.1  jonathan {
    894  1.35        ad 	file_t *fp;
    895  1.29       tls         struct fcrypt *fcr;
    896  1.29       tls         int fd, error;
    897  1.29       tls 
    898   1.1  jonathan 	if (crypto_usercrypto == 0)
    899  1.42  christos 		return ENXIO;
    900  1.29       tls 
    901  1.35        ad 	if ((error = fd_allocfile(&fp, &fd)) != 0)
    902  1.29       tls 		return error;
    903  1.29       tls 
    904  1.29       tls 	fcr = pool_get(&fcrpl, PR_WAITOK);
    905  1.33       tls 	mutex_spin_enter(&crypto_mtx);
    906  1.29       tls 	TAILQ_INIT(&fcr->csessions);
    907  1.36       tls 	TAILQ_INIT(&fcr->crp_ret_mq);
    908  1.36       tls 	TAILQ_INIT(&fcr->crp_ret_mkq);
    909  1.36       tls 	selinit(&fcr->sinfo);
    910  1.29       tls 	/*
    911  1.29       tls 	 * Don't ever return session 0, to allow detection of
    912  1.29       tls 	 * failed creation attempts with multi-create ioctl.
    913  1.29       tls 	 */
    914  1.29       tls 	fcr->sesn = 1;
    915  1.36       tls 	fcr->requestid = 1;
    916  1.33       tls 	mutex_spin_exit(&crypto_mtx);
    917  1.35        ad 	return fd_clone(fp, fd, flag, &cryptofops, fcr);
    918   1.1  jonathan }
    919   1.1  jonathan 
    920   1.1  jonathan static int
    921  1.25  christos cryptoread(dev_t dev, struct uio *uio, int ioflag)
    922   1.1  jonathan {
    923  1.42  christos 	return EIO;
    924   1.1  jonathan }
    925   1.1  jonathan 
    926   1.1  jonathan static int
    927  1.25  christos cryptowrite(dev_t dev, struct uio *uio, int ioflag)
    928   1.1  jonathan {
    929  1.42  christos 	return EIO;
    930   1.1  jonathan }
    931   1.1  jonathan 
    932   1.1  jonathan int
    933  1.25  christos cryptoselect(dev_t dev, int rw, struct lwp *l)
    934   1.1  jonathan {
    935  1.42  christos 	return 0;
    936   1.1  jonathan }
    937   1.1  jonathan 
    938   1.1  jonathan /*static*/
    939   1.1  jonathan struct cdevsw crypto_cdevsw = {
    940   1.1  jonathan 	/* open */	cryptoopen,
    941  1.29       tls 	/* close */	noclose,
    942   1.1  jonathan 	/* read */	cryptoread,
    943   1.1  jonathan 	/* write */	cryptowrite,
    944  1.29       tls 	/* ioctl */	noioctl,
    945   1.1  jonathan 	/* ttstop?*/	nostop,
    946   1.1  jonathan 	/* ??*/		notty,
    947   1.1  jonathan 	/* poll */	cryptoselect /*nopoll*/,
    948   1.1  jonathan 	/* mmap */	nommap,
    949   1.1  jonathan 	/* kqfilter */	nokqfilter,
    950  1.23  christos 	/* type */	D_OTHER,
    951   1.1  jonathan };
    952   1.1  jonathan 
    953  1.36       tls static int
    954  1.36       tls cryptodev_mop(struct fcrypt *fcr,
    955  1.36       tls               struct crypt_n_op * cnop,
    956  1.36       tls               int count, struct lwp *l)
    957  1.36       tls {
    958  1.36       tls 	struct cryptop *crp = NULL;
    959  1.36       tls 	struct cryptodesc *crde = NULL, *crda = NULL;
    960  1.36       tls 	int req, error=0;
    961  1.36       tls 	struct csession *cse;
    962  1.36       tls 
    963  1.36       tls 	for (req = 0; req < count; req++) {
    964  1.36       tls 		mutex_spin_enter(&crypto_mtx);
    965  1.36       tls 		cse = csefind(fcr, cnop[req].ses);
    966  1.36       tls 		if (cse == NULL) {
    967  1.36       tls 			DPRINTF(("csefind failed\n"));
    968  1.36       tls 			cnop[req].status = EINVAL;
    969  1.36       tls 			mutex_spin_exit(&crypto_mtx);
    970  1.36       tls 			continue;
    971  1.36       tls 		}
    972  1.36       tls 		mutex_spin_exit(&crypto_mtx);
    973  1.36       tls 
    974  1.36       tls 		if (cnop[req].len > 256*1024-4) {
    975  1.36       tls 			DPRINTF(("length failed\n"));
    976  1.36       tls 			cnop[req].status = EINVAL;
    977  1.36       tls 			continue;
    978  1.36       tls 		}
    979  1.36       tls 		if (cse->txform) {
    980  1.36       tls 			if (cnop[req].len == 0 ||
    981  1.36       tls 			    (cnop[req].len % cse->txform->blocksize) != 0) {
    982  1.36       tls 				cnop[req].status = EINVAL;
    983  1.36       tls 				continue;
    984  1.36       tls 			}
    985  1.36       tls 		}
    986  1.36       tls 
    987  1.42  christos 		crp = crypto_getreq((cse->txform != NULL) +
    988  1.42  christos 		    (cse->thash != NULL));
    989  1.36       tls 		if (crp == NULL) {
    990  1.36       tls 			cnop[req].status = ENOMEM;
    991  1.36       tls 			goto bail;
    992  1.36       tls 		}
    993  1.36       tls 
    994  1.42  christos 		(void)memset(&crp->uio, 0, sizeof(crp->uio));
    995  1.36       tls 		crp->uio.uio_iovcnt = 1;
    996  1.36       tls 		crp->uio.uio_resid = 0;
    997  1.36       tls 		crp->uio.uio_rw = UIO_WRITE;
    998  1.36       tls 		crp->uio.uio_iov = crp->iovec;
    999  1.36       tls 		UIO_SETUP_SYSSPACE(&crp->uio);
   1000  1.36       tls 		memset(&crp->iovec, 0, sizeof(crp->iovec));
   1001  1.36       tls 		crp->uio.uio_iov[0].iov_len = cnop[req].len;
   1002  1.36       tls 		crp->uio.uio_iov[0].iov_base = kmem_alloc(cnop[req].len,
   1003  1.42  christos 		    KM_SLEEP);
   1004  1.36       tls 		crp->uio.uio_resid = crp->uio.uio_iov[0].iov_len;
   1005  1.36       tls 
   1006  1.36       tls 		if (cse->thash) {
   1007  1.36       tls 			crda = crp->crp_desc;
   1008  1.36       tls 			if (cse->txform)
   1009  1.36       tls 				crde = crda->crd_next;
   1010  1.36       tls 		} else {
   1011  1.36       tls 			if (cse->txform)
   1012  1.36       tls 				crde = crp->crp_desc;
   1013  1.36       tls 			else {
   1014  1.36       tls 				cnop[req].status = EINVAL;
   1015  1.36       tls 				goto bail;
   1016  1.36       tls 			}
   1017  1.36       tls 		}
   1018  1.36       tls 
   1019  1.36       tls 		if ((copyin(cnop[req].src,
   1020  1.36       tls 		    crp->uio.uio_iov[0].iov_base, cnop[req].len))) {
   1021  1.36       tls 			cnop[req].status = EINVAL;
   1022  1.36       tls 			goto bail;
   1023  1.36       tls 		}
   1024  1.36       tls 
   1025  1.36       tls 		if (crda) {
   1026  1.36       tls 			crda->crd_skip = 0;
   1027  1.36       tls 			crda->crd_len = cnop[req].len;
   1028  1.36       tls 			crda->crd_inject = 0;	/* ??? */
   1029  1.36       tls 
   1030  1.36       tls 			crda->crd_alg = cse->mac;
   1031  1.36       tls 			crda->crd_key = cse->mackey;
   1032  1.36       tls 			crda->crd_klen = cse->mackeylen * 8;
   1033  1.36       tls 		}
   1034  1.36       tls 
   1035  1.36       tls 		if (crde) {
   1036  1.36       tls 			if (cnop[req].op == COP_ENCRYPT)
   1037  1.36       tls 				crde->crd_flags |= CRD_F_ENCRYPT;
   1038  1.36       tls 			else
   1039  1.36       tls 				crde->crd_flags &= ~CRD_F_ENCRYPT;
   1040  1.36       tls 			crde->crd_len = cnop[req].len;
   1041  1.36       tls 			crde->crd_inject = 0;
   1042  1.36       tls 
   1043  1.36       tls 			crde->crd_alg = cse->cipher;
   1044  1.36       tls #ifdef notyet		/* XXX must notify h/w driver new key, drain */
   1045  1.36       tls 			if(cnop[req].key && cnop[req].keylen) {
   1046  1.36       tls 				crde->crd_key = malloc(cnop[req].keylen,
   1047  1.36       tls 						    M_XDATA, M_WAITOK);
   1048  1.36       tls 				if((error = copyin(cnop[req].key,
   1049  1.36       tls 				    crde->crd_key, cnop[req].keylen))) {
   1050  1.36       tls 					cnop[req].status = EINVAL;
   1051  1.36       tls 					goto bail;
   1052  1.36       tls 				}
   1053  1.36       tls 				crde->crd_klen =  cnop[req].keylen * 8;
   1054  1.36       tls 			} else { ... }
   1055  1.36       tls #endif
   1056  1.36       tls 			crde->crd_key = cse->key;
   1057  1.36       tls 			crde->crd_klen = cse->keylen * 8;
   1058  1.36       tls 		}
   1059  1.36       tls 
   1060  1.36       tls 		crp->crp_ilen = cnop[req].len;
   1061  1.42  christos 		crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM |
   1062  1.42  christos 		    (cnop[req].flags & COP_F_BATCH);
   1063  1.36       tls 		crp->crp_buf = (void *)&crp->uio;
   1064  1.36       tls 		crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_mcb;
   1065  1.36       tls 		crp->crp_sid = cse->sid;
   1066  1.36       tls 		crp->crp_opaque = (void *)cse;
   1067  1.36       tls 		crp->fcrp = fcr;
   1068  1.36       tls 		crp->dst = cnop[req].dst;
   1069  1.36       tls 		/* we can use the crp_ilen in cryptop(crp) for this */
   1070  1.36       tls 		crp->len = cnop[req].len;
   1071  1.36       tls 		crp->mac = cnop[req].mac;
   1072  1.36       tls 
   1073  1.36       tls 		if (cnop[req].iv) {
   1074  1.36       tls 			if (crde == NULL) {
   1075  1.36       tls 				cnop[req].status = EINVAL;
   1076  1.36       tls 				goto bail;
   1077  1.36       tls 			}
   1078  1.36       tls 			if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
   1079  1.36       tls 				cnop[req].status = EINVAL;
   1080  1.36       tls 				goto bail;
   1081  1.36       tls 			}
   1082  1.36       tls 			if ((error = copyin(cnop[req].iv, crp->tmp_iv,
   1083  1.36       tls 			    cse->txform->blocksize))) {
   1084  1.36       tls 				cnop[req].status = EINVAL;
   1085  1.36       tls 				goto bail;
   1086  1.36       tls 			}
   1087  1.42  christos 			(void)memcpy(crde->crd_iv, crp->tmp_iv,
   1088  1.42  christos 			    cse->txform->blocksize);
   1089  1.36       tls 			crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
   1090  1.36       tls 			crde->crd_skip = 0;
   1091  1.36       tls 		} else if (crde) {
   1092  1.36       tls 			if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
   1093  1.36       tls 				crde->crd_skip = 0;
   1094  1.36       tls 			} else {
   1095  1.36       tls 				crde->crd_flags |= CRD_F_IV_PRESENT;
   1096  1.36       tls 				crde->crd_skip = cse->txform->blocksize;
   1097  1.36       tls 				crde->crd_len -= cse->txform->blocksize;
   1098  1.36       tls 			}
   1099  1.36       tls 		}
   1100  1.36       tls 
   1101  1.36       tls 		if (cnop[req].mac) {
   1102  1.36       tls 			if (crda == NULL) {
   1103  1.36       tls 				cnop[req].status = EINVAL;
   1104  1.36       tls 				goto bail;
   1105  1.36       tls 			}
   1106  1.36       tls 			crp->crp_mac=cse->tmp_mac;
   1107  1.36       tls 		}
   1108  1.36       tls 		cnop[req].reqid = atomic_inc_32_nv(&(fcr->requestid));
   1109  1.36       tls 		crp->crp_reqid = cnop[req].reqid;
   1110  1.36       tls 		crp->crp_usropaque = cnop[req].opaque;
   1111  1.36       tls #ifdef notyet
   1112  1.36       tls eagain:
   1113  1.36       tls #endif
   1114  1.36       tls 		cnop[req].status = crypto_dispatch(crp);
   1115  1.36       tls 		mutex_spin_enter(&crypto_mtx);	/* XXX why mutex? */
   1116  1.36       tls 
   1117  1.36       tls 		switch (cnop[req].status) {
   1118  1.36       tls #ifdef notyet	/* don't loop forever -- but EAGAIN not possible here yet */
   1119  1.36       tls 		case EAGAIN:
   1120  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1121  1.36       tls 			goto eagain;
   1122  1.36       tls 			break;
   1123  1.36       tls #endif
   1124  1.36       tls 		case 0:
   1125  1.36       tls 			break;
   1126  1.36       tls 		default:
   1127  1.36       tls 			DPRINTF(("cryptodev_op: not waiting, error.\n"));
   1128  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1129  1.36       tls 			goto bail;
   1130  1.36       tls 		}
   1131  1.36       tls 
   1132  1.36       tls 		mutex_spin_exit(&crypto_mtx);
   1133  1.36       tls bail:
   1134  1.36       tls 		if (cnop[req].status) {
   1135  1.36       tls 			if (crp) {
   1136  1.36       tls 				crypto_freereq(crp);
   1137  1.36       tls 				if(cse->uio.uio_iov[0].iov_base) {
   1138  1.36       tls 					kmem_free(cse->uio.uio_iov[0].iov_base,
   1139  1.42  christos 					    cse->uio.uio_iov[0].iov_len);
   1140  1.36       tls 				}
   1141  1.36       tls 			}
   1142  1.36       tls 			error = 0;
   1143  1.36       tls 		}
   1144  1.36       tls 	}
   1145  1.42  christos 	return error;
   1146  1.36       tls }
   1147  1.36       tls 
   1148  1.36       tls static int
   1149  1.36       tls cryptodev_mkey(struct fcrypt *fcr, struct crypt_n_kop *kop, int count)
   1150  1.36       tls {
   1151  1.36       tls 	struct cryptkop *krp = NULL;
   1152  1.36       tls 	int error = EINVAL;
   1153  1.36       tls 	int in, out, size, i, req;
   1154  1.36       tls 
   1155  1.36       tls 	for (req = 0; req < count; req++) {
   1156  1.42  christos 		if (kop[req].crk_iparams + kop[req].crk_oparams > CRK_MAXPARAM)
   1157  1.42  christos 			return EFBIG;
   1158  1.36       tls 
   1159  1.36       tls 		in = kop[req].crk_iparams;
   1160  1.36       tls 		out = kop[req].crk_oparams;
   1161  1.36       tls 		switch (kop[req].crk_op) {
   1162  1.36       tls 		case CRK_MOD_EXP:
   1163  1.36       tls 			if (in == 3 && out == 1)
   1164  1.36       tls 				break;
   1165  1.36       tls 			kop[req].crk_status = EINVAL;
   1166  1.36       tls 			continue;
   1167  1.36       tls 		case CRK_MOD_EXP_CRT:
   1168  1.36       tls 			if (in == 6 && out == 1)
   1169  1.36       tls 				break;
   1170  1.36       tls 			kop[req].crk_status = EINVAL;
   1171  1.36       tls 			continue;
   1172  1.36       tls 		case CRK_DSA_SIGN:
   1173  1.36       tls 			if (in == 5 && out == 2)
   1174  1.36       tls 				break;
   1175  1.36       tls 			kop[req].crk_status = EINVAL;
   1176  1.36       tls 			continue;
   1177  1.36       tls 		case CRK_DSA_VERIFY:
   1178  1.36       tls 			if (in == 7 && out == 0)
   1179  1.36       tls 				break;
   1180  1.36       tls 			kop[req].crk_status = EINVAL;
   1181  1.36       tls 			continue;
   1182  1.36       tls 		case CRK_DH_COMPUTE_KEY:
   1183  1.36       tls 			if (in == 3 && out == 1)
   1184  1.36       tls 				break;
   1185  1.36       tls 			kop[req].crk_status = EINVAL;
   1186  1.36       tls 			continue;
   1187  1.36       tls 		case CRK_MOD_ADD:
   1188  1.36       tls 			if (in == 3 && out == 1)
   1189  1.36       tls 				break;
   1190  1.36       tls 			kop[req].crk_status = EINVAL;
   1191  1.36       tls 			continue;
   1192  1.36       tls 		case CRK_MOD_ADDINV:
   1193  1.36       tls 			if (in == 2 && out == 1)
   1194  1.36       tls 				break;
   1195  1.36       tls 			kop[req].crk_status = EINVAL;
   1196  1.36       tls 			continue;
   1197  1.36       tls 		case CRK_MOD_SUB:
   1198  1.36       tls 			if (in == 3 && out == 1)
   1199  1.36       tls 				break;
   1200  1.36       tls 			kop[req].crk_status = EINVAL;
   1201  1.36       tls 			continue;
   1202  1.36       tls 		case CRK_MOD_MULT:
   1203  1.36       tls 			if (in == 3 && out == 1)
   1204  1.36       tls 				break;
   1205  1.36       tls 			kop[req].crk_status = EINVAL;
   1206  1.36       tls 			continue;
   1207  1.36       tls 		case CRK_MOD_MULTINV:
   1208  1.36       tls 			if (in == 2 && out == 1)
   1209  1.36       tls 				break;
   1210  1.36       tls 			kop[req].crk_status = EINVAL;
   1211  1.36       tls 			continue;
   1212  1.36       tls 		case CRK_MOD:
   1213  1.36       tls 			if (in == 2 && out == 1)
   1214  1.36       tls 				break;
   1215  1.36       tls 			kop[req].crk_status = EINVAL;
   1216  1.36       tls 			continue;
   1217  1.36       tls 		default:
   1218  1.36       tls 			kop[req].crk_status = EINVAL;
   1219  1.36       tls 			continue;
   1220  1.36       tls 		}
   1221  1.36       tls 
   1222  1.36       tls 		krp = pool_get(&cryptkop_pool, PR_WAITOK);
   1223  1.42  christos 		(void)memset(krp, 0, sizeof *krp);
   1224  1.36       tls 		cv_init(&krp->krp_cv, "crykdev");
   1225  1.36       tls 		krp->krp_op = kop[req].crk_op;
   1226  1.36       tls 		krp->krp_status = kop[req].crk_status;
   1227  1.36       tls 		krp->krp_iparams = kop[req].crk_iparams;
   1228  1.36       tls 		krp->krp_oparams = kop[req].crk_oparams;
   1229  1.36       tls 		krp->krp_status = 0;
   1230  1.36       tls 		krp->krp_callback =
   1231  1.36       tls 		    (int (*) (struct cryptkop *)) cryptodevkey_mcb;
   1232  1.42  christos 		(void)memcpy(krp->crk_param, kop[req].crk_param,
   1233  1.42  christos 		    sizeof(kop[req].crk_param));
   1234  1.36       tls 
   1235  1.36       tls 		krp->krp_flags = CRYPTO_F_CBIMM;
   1236  1.36       tls 
   1237  1.36       tls 		for (i = 0; i < CRK_MAXPARAM; i++)
   1238  1.36       tls 			krp->krp_param[i].crp_nbits =
   1239  1.36       tls 			    kop[req].crk_param[i].crp_nbits;
   1240  1.36       tls 		for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
   1241  1.36       tls 			size = (krp->krp_param[i].crp_nbits + 7) / 8;
   1242  1.36       tls 			if (size == 0)
   1243  1.36       tls 				continue;
   1244  1.36       tls 			krp->krp_param[i].crp_p =
   1245  1.36       tls 			    kmem_alloc(size, KM_SLEEP);
   1246  1.36       tls 			if (i >= krp->krp_iparams)
   1247  1.36       tls 				continue;
   1248  1.42  christos 			kop[req].crk_status =
   1249  1.42  christos 			    copyin(kop[req].crk_param[i].crp_p,
   1250  1.42  christos 			    krp->krp_param[i].crp_p, size);
   1251  1.36       tls 			if (kop[req].crk_status)
   1252  1.36       tls 				goto fail;
   1253  1.36       tls 		}
   1254  1.36       tls 		krp->fcrp = fcr;
   1255  1.36       tls 
   1256  1.36       tls 		kop[req].crk_reqid = atomic_inc_32_nv(&(fcr->requestid));
   1257  1.36       tls 		krp->krp_reqid = kop[req].crk_reqid;
   1258  1.36       tls 		krp->krp_usropaque = kop[req].crk_opaque;
   1259  1.36       tls 
   1260  1.36       tls 		kop[req].crk_status = crypto_kdispatch(krp);
   1261  1.36       tls 		if (kop[req].crk_status != 0) {
   1262  1.36       tls 			goto fail;
   1263  1.36       tls 		}
   1264  1.36       tls 
   1265  1.36       tls fail:
   1266  1.36       tls 		if(kop[req].crk_status) {
   1267  1.36       tls 			if (krp) {
   1268  1.36       tls 				kop[req].crk_status = krp->krp_status;
   1269  1.36       tls 				for (i = 0; i < CRK_MAXPARAM; i++) {
   1270  1.36       tls 					struct crparam *kp =
   1271  1.36       tls 						&(krp->krp_param[i]);
   1272  1.36       tls 					if (kp->crp_p) {
   1273  1.36       tls 						size = (kp->crp_nbits + 7) / 8;
   1274  1.36       tls 						KASSERT(size > 0);
   1275  1.36       tls 						memset(kp->crp_p, 0, size);
   1276  1.36       tls 						kmem_free(kp->crp_p, size);
   1277  1.36       tls 					}
   1278  1.36       tls 				}
   1279  1.36       tls 				pool_put(&cryptkop_pool, krp);
   1280  1.36       tls 			}
   1281  1.36       tls 		}
   1282  1.36       tls 		error = 0;
   1283  1.36       tls 	}
   1284  1.36       tls 	DPRINTF(("cryptodev_key: error=0x%08x\n", error));
   1285  1.42  christos 	return error;
   1286  1.36       tls }
   1287  1.36       tls 
   1288  1.36       tls static int
   1289  1.36       tls cryptodev_session(struct fcrypt *fcr, struct session_op *sop) {
   1290  1.36       tls 	struct cryptoini cria, crie;
   1291  1.36       tls 	struct enc_xform *txform = NULL;
   1292  1.36       tls 	struct auth_hash *thash = NULL;
   1293  1.36       tls 	struct csession *cse;
   1294  1.36       tls 	u_int64_t sid;
   1295  1.36       tls 	int error = 0;
   1296  1.36       tls 
   1297  1.36       tls 	/* XXX there must be a way to not embed the list of xforms here */
   1298  1.36       tls 	switch (sop->cipher) {
   1299  1.36       tls 	case 0:
   1300  1.36       tls 		break;
   1301  1.36       tls 	case CRYPTO_DES_CBC:
   1302  1.36       tls 		txform = &enc_xform_des;
   1303  1.36       tls 		break;
   1304  1.36       tls 	case CRYPTO_3DES_CBC:
   1305  1.36       tls 		txform = &enc_xform_3des;
   1306  1.36       tls 		break;
   1307  1.36       tls 	case CRYPTO_BLF_CBC:
   1308  1.36       tls 		txform = &enc_xform_blf;
   1309  1.36       tls 		break;
   1310  1.36       tls 	case CRYPTO_CAST_CBC:
   1311  1.36       tls 		txform = &enc_xform_cast5;
   1312  1.36       tls 	case CRYPTO_SKIPJACK_CBC:
   1313  1.36       tls 		txform = &enc_xform_skipjack;
   1314  1.36       tls 		break;
   1315  1.36       tls 	case CRYPTO_AES_CBC:
   1316  1.36       tls 		txform = &enc_xform_rijndael128;
   1317  1.36       tls 		break;
   1318  1.36       tls 	case CRYPTO_NULL_CBC:
   1319  1.36       tls 		txform = &enc_xform_null;
   1320  1.36       tls 		break;
   1321  1.36       tls 	case CRYPTO_ARC4:
   1322  1.36       tls 		txform = &enc_xform_arc4;
   1323  1.36       tls 		break;
   1324  1.36       tls 	default:
   1325  1.36       tls 		DPRINTF(("Invalid cipher %d\n", sop->cipher));
   1326  1.36       tls 		return EINVAL;
   1327  1.36       tls 	}
   1328  1.36       tls 
   1329  1.36       tls 	switch (sop->mac) {
   1330  1.36       tls 	case 0:
   1331  1.36       tls 		break;
   1332  1.36       tls 	case CRYPTO_MD5_HMAC:
   1333  1.36       tls 		thash = &auth_hash_hmac_md5;
   1334  1.36       tls 		break;
   1335  1.36       tls 	case CRYPTO_SHA1_HMAC:
   1336  1.36       tls 		thash = &auth_hash_hmac_sha1;
   1337  1.36       tls 		break;
   1338  1.36       tls 	case CRYPTO_MD5_HMAC_96:
   1339  1.36       tls 		thash = &auth_hash_hmac_md5_96;
   1340  1.36       tls 		break;
   1341  1.36       tls 	case CRYPTO_SHA1_HMAC_96:
   1342  1.36       tls 		thash = &auth_hash_hmac_sha1_96;
   1343  1.36       tls 		break;
   1344  1.36       tls 	case CRYPTO_SHA2_HMAC:
   1345  1.36       tls 		/* XXX switching on key length seems questionable */
   1346  1.36       tls 		if (sop->mackeylen == auth_hash_hmac_sha2_256.keysize) {
   1347  1.36       tls 			thash = &auth_hash_hmac_sha2_256;
   1348  1.36       tls 		} else if (sop->mackeylen == auth_hash_hmac_sha2_384.keysize) {
   1349  1.36       tls 			thash = &auth_hash_hmac_sha2_384;
   1350  1.36       tls 		} else if (sop->mackeylen == auth_hash_hmac_sha2_512.keysize) {
   1351  1.36       tls 			thash = &auth_hash_hmac_sha2_512;
   1352  1.36       tls 		} else {
   1353  1.36       tls 			DPRINTF(("Invalid mackeylen %d\n", sop->mackeylen));
   1354  1.36       tls 			return EINVAL;
   1355  1.36       tls 		}
   1356  1.36       tls 		break;
   1357  1.36       tls 	case CRYPTO_RIPEMD160_HMAC:
   1358  1.36       tls 		thash = &auth_hash_hmac_ripemd_160;
   1359  1.36       tls 		break;
   1360  1.36       tls 	case CRYPTO_RIPEMD160_HMAC_96:
   1361  1.36       tls 		thash = &auth_hash_hmac_ripemd_160_96;
   1362  1.36       tls 		break;
   1363  1.36       tls 	case CRYPTO_MD5:
   1364  1.36       tls 		thash = &auth_hash_md5;
   1365  1.36       tls 		break;
   1366  1.36       tls 	case CRYPTO_SHA1:
   1367  1.36       tls 		thash = &auth_hash_sha1;
   1368  1.36       tls 		break;
   1369  1.36       tls 	case CRYPTO_NULL_HMAC:
   1370  1.36       tls 		thash = &auth_hash_null;
   1371  1.36       tls 		break;
   1372  1.36       tls 	default:
   1373  1.36       tls 		DPRINTF(("Invalid mac %d\n", sop->mac));
   1374  1.42  christos 		return EINVAL;
   1375  1.36       tls 	}
   1376  1.36       tls 
   1377  1.36       tls 	memset(&crie, 0, sizeof(crie));
   1378  1.36       tls 	memset(&cria, 0, sizeof(cria));
   1379  1.36       tls 
   1380  1.36       tls 	if (txform) {
   1381  1.36       tls 		crie.cri_alg = txform->type;
   1382  1.36       tls 		crie.cri_klen = sop->keylen * 8;
   1383  1.36       tls 		if (sop->keylen > txform->maxkey ||
   1384  1.36       tls 		    sop->keylen < txform->minkey) {
   1385  1.36       tls 			DPRINTF(("keylen %d not in [%d,%d]\n",
   1386  1.42  christos 			    sop->keylen, txform->minkey, txform->maxkey));
   1387  1.42  christos 			error = EINVAL;
   1388  1.36       tls 			goto bail;
   1389  1.36       tls 		}
   1390  1.36       tls 
   1391  1.36       tls 		crie.cri_key = malloc(crie.cri_klen / 8, M_XDATA, M_WAITOK);
   1392  1.42  christos 		if ((error = copyin(sop->key, crie.cri_key, crie.cri_klen / 8)))
   1393  1.36       tls 			goto bail;
   1394  1.42  christos 		if (thash)
   1395  1.36       tls 			crie.cri_next = &cria;	/* XXX forces enc then hash? */
   1396  1.36       tls 	}
   1397  1.36       tls 
   1398  1.36       tls 	if (thash) {
   1399  1.36       tls 		cria.cri_alg = thash->type;
   1400  1.36       tls 		cria.cri_klen = sop->mackeylen * 8;
   1401  1.36       tls 		if (sop->mackeylen != thash->keysize) {
   1402  1.36       tls 			DPRINTF(("mackeylen %d != keysize %d\n",
   1403  1.42  christos 			    sop->mackeylen, thash->keysize));
   1404  1.36       tls 			error = EINVAL;
   1405  1.36       tls 			goto bail;
   1406  1.36       tls 		}
   1407  1.36       tls 		if (cria.cri_klen) {
   1408  1.36       tls 			cria.cri_key = malloc(cria.cri_klen / 8, M_XDATA,
   1409  1.42  christos 			    M_WAITOK);
   1410  1.36       tls 			if ((error = copyin(sop->mackey, cria.cri_key,
   1411  1.42  christos 			    cria.cri_klen / 8))) {
   1412  1.36       tls 				goto bail;
   1413  1.36       tls 			}
   1414  1.36       tls 		}
   1415  1.36       tls 	}
   1416  1.36       tls 	/* crypto_newsession requires that we hold the mutex. */
   1417  1.36       tls 	mutex_spin_enter(&crypto_mtx);
   1418  1.36       tls 	error = crypto_newsession(&sid, (txform ? &crie : &cria),
   1419  1.42  christos 	    crypto_devallowsoft);
   1420  1.36       tls 	if (!error) {
   1421  1.36       tls 		cse = csecreate(fcr, sid, crie.cri_key, crie.cri_klen,
   1422  1.42  christos 		    cria.cri_key, cria.cri_klen, sop->cipher, sop->mac,
   1423  1.42  christos 		    txform, thash);
   1424  1.36       tls 		if (cse != NULL) {
   1425  1.36       tls 			sop->ses = cse->ses;
   1426  1.36       tls 		} else {
   1427  1.36       tls 			DPRINTF(("csecreate failed\n"));
   1428  1.36       tls 			crypto_freesession(sid);
   1429  1.36       tls 			error = EINVAL;
   1430  1.36       tls 		}
   1431  1.36       tls 	} else {
   1432  1.36       tls 		DPRINTF(("SIOCSESSION violates kernel parameters %d\n",
   1433  1.42  christos 		    error));
   1434  1.36       tls 	}
   1435  1.36       tls 	mutex_spin_exit(&crypto_mtx);
   1436  1.36       tls bail:
   1437  1.36       tls 	if (error) {
   1438  1.36       tls 		if (crie.cri_key) {
   1439  1.36       tls 			memset(crie.cri_key, 0, crie.cri_klen / 8);
   1440  1.36       tls 			free(crie.cri_key, M_XDATA);
   1441  1.36       tls 		}
   1442  1.36       tls 		if (cria.cri_key) {
   1443  1.36       tls 			memset(cria.cri_key, 0, cria.cri_klen / 8);
   1444  1.36       tls 			free(cria.cri_key, M_XDATA);
   1445  1.36       tls 		}
   1446  1.36       tls 	}
   1447  1.36       tls 	return error;
   1448  1.36       tls }
   1449  1.36       tls 
   1450  1.36       tls static int
   1451  1.36       tls cryptodev_msession(struct fcrypt *fcr, struct session_n_op *sn_ops,
   1452  1.36       tls 		   int count)
   1453  1.36       tls {
   1454  1.36       tls 	int i;
   1455  1.36       tls 
   1456  1.36       tls 	for (i = 0; i < count; i++, sn_ops++) {
   1457  1.36       tls 		struct session_op s_op;
   1458  1.36       tls 		s_op.cipher =		sn_ops->cipher;
   1459  1.36       tls 		s_op.mac =		sn_ops->mac;
   1460  1.36       tls 		s_op.keylen =		sn_ops->keylen;
   1461  1.36       tls 		s_op.key =		sn_ops->key;
   1462  1.36       tls 		s_op.mackeylen =	sn_ops->mackeylen;
   1463  1.36       tls 		s_op.mackey =		sn_ops->mackey;
   1464  1.36       tls 
   1465  1.36       tls 		sn_ops->status = cryptodev_session(fcr, &s_op);
   1466  1.36       tls 		sn_ops->ses =		s_op.ses;
   1467  1.36       tls 	}
   1468  1.36       tls 
   1469  1.36       tls 	return 0;
   1470  1.36       tls }
   1471  1.36       tls 
   1472  1.36       tls static int
   1473  1.36       tls cryptodev_msessionfin(struct fcrypt *fcr, int count, u_int32_t *sesid)
   1474  1.36       tls {
   1475  1.36       tls 	struct csession *cse;
   1476  1.36       tls 	int req, error = 0;
   1477  1.36       tls 
   1478  1.36       tls 	mutex_spin_enter(&crypto_mtx);
   1479  1.36       tls 	for(req = 0; req < count; req++) {
   1480  1.36       tls 		cse = csefind(fcr, sesid[req]);
   1481  1.36       tls 		if (cse == NULL)
   1482  1.36       tls 			continue;
   1483  1.36       tls 		csedelete(fcr, cse);
   1484  1.36       tls 		error = csefree(cse);
   1485  1.36       tls 	}
   1486  1.36       tls 	mutex_spin_exit(&crypto_mtx);
   1487  1.36       tls 	return 0;
   1488  1.36       tls }
   1489  1.36       tls 
   1490  1.36       tls /*
   1491  1.42  christos  * collect as many completed requests as are availble, or count completed
   1492  1.42  christos  * requests whichever is less.
   1493  1.36       tls  * return the number of requests.
   1494  1.36       tls  */
   1495  1.36       tls static int
   1496  1.36       tls cryptodev_getmstatus(struct fcrypt *fcr, struct crypt_result *crypt_res,
   1497  1.42  christos     int count)
   1498  1.36       tls {
   1499  1.36       tls 	struct cryptop *crp = NULL;
   1500  1.36       tls 	struct cryptkop *krp = NULL;
   1501  1.36       tls 	struct csession *cse;
   1502  1.36       tls 	int i, size, req = 0;
   1503  1.36       tls 	int completed=0;
   1504  1.36       tls 
   1505  1.36       tls 	/* On stack so nobody else can grab them -- no locking */
   1506  1.36       tls 	SLIST_HEAD(, cryptop) crp_delfree_l =
   1507  1.36       tls 	    SLIST_HEAD_INITIALIZER(crp_delfree_l);
   1508  1.36       tls 	SLIST_HEAD(, cryptkop) krp_delfree_l =
   1509  1.36       tls 	    SLIST_HEAD_INITIALIZER(krp_delfree_l);
   1510  1.36       tls 
   1511  1.36       tls 	mutex_spin_enter(&crypto_mtx);
   1512  1.36       tls 
   1513  1.36       tls 	/* at this point we do not know which response user is requesting for
   1514  1.36       tls 	 * (symmetric or asymmetric) so we copyout one from each i.e if the
   1515  1.36       tls 	 * count is 2 then 1 from symmetric and 1 from asymmetric queue and
   1516  1.36       tls 	 * if 3 then 2 symmetric and 1 asymmetric and so on */
   1517  1.36       tls 	for(; req < count ;) {
   1518  1.36       tls 		crp = TAILQ_FIRST(&fcr->crp_ret_mq);
   1519  1.36       tls 		if(crp) {
   1520  1.36       tls 			cse = (struct csession *)crp->crp_opaque;
   1521  1.36       tls 			crypt_res[req].reqid = crp->crp_reqid;
   1522  1.36       tls 			crypt_res[req].opaque = crp->crp_usropaque;
   1523  1.36       tls 			completed++;
   1524  1.36       tls 			cse = csefind(fcr, cse->ses);
   1525  1.36       tls 			if (cse == NULL) {
   1526  1.36       tls 				DPRINTF(("csefind failed\n"));
   1527  1.36       tls 				crypt_res[req].status = EINVAL;
   1528  1.36       tls 				goto bail;
   1529  1.36       tls 			}
   1530  1.36       tls 
   1531  1.36       tls 			if (crp->crp_etype != 0) {
   1532  1.36       tls 				crypt_res[req].status = crp->crp_etype;
   1533  1.36       tls 				goto bail;
   1534  1.36       tls 			}
   1535  1.36       tls 
   1536  1.36       tls 			if (cse->error) {
   1537  1.36       tls 				crypt_res[req].status = cse->error;
   1538  1.36       tls 				goto bail;
   1539  1.36       tls 			}
   1540  1.36       tls 
   1541  1.42  christos 			if (crp->dst && (crypt_res[req].status =
   1542  1.42  christos 			    copyout(crp->uio.uio_iov[0].iov_base, crp->dst,
   1543  1.42  christos 			    crp->len)))
   1544  1.36       tls 				goto bail;
   1545  1.36       tls 
   1546  1.42  christos 			if (crp->mac && (crypt_res[req].status =
   1547  1.42  christos 			    copyout(crp->crp_mac, crp->mac,
   1548  1.42  christos 			    cse->thash->authsize)))
   1549  1.36       tls 				goto bail;
   1550  1.36       tls bail:
   1551  1.36       tls 			TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
   1552  1.36       tls 			SLIST_INSERT_HEAD(&crp_delfree_l, crp,
   1553  1.42  christos 			    crp_qun.crp_lnext);
   1554  1.36       tls 			req++;
   1555  1.36       tls 		}
   1556  1.36       tls 
   1557  1.36       tls 		if(req < count) {
   1558  1.36       tls 			krp = TAILQ_FIRST(&fcr->crp_ret_mkq);
   1559  1.36       tls 			if (krp) {
   1560  1.36       tls 				crypt_res[req].reqid = krp->krp_reqid;
   1561  1.36       tls 				crypt_res[req].opaque = krp->krp_usropaque;
   1562  1.36       tls 				completed++;
   1563  1.36       tls 				if (krp->krp_status != 0) {
   1564  1.36       tls 					DPRINTF(("cryptodev_key: "
   1565  1.42  christos 					    "krp->krp_status 0x%08x\n",
   1566  1.42  christos 					    krp->krp_status));
   1567  1.42  christos 					crypt_res[req].status = krp->krp_status;
   1568  1.36       tls 					goto fail;
   1569  1.36       tls 				}
   1570  1.36       tls 
   1571  1.36       tls 				for (i = krp->krp_iparams; i < krp->krp_iparams
   1572  1.42  christos 				    + krp->krp_oparams; i++) {
   1573  1.36       tls 					size = (krp->krp_param[i].crp_nbits
   1574  1.42  christos 					    + 7) / 8;
   1575  1.36       tls 					if (size == 0)
   1576  1.36       tls 						continue;
   1577  1.36       tls 					crypt_res[req].status = copyout
   1578  1.36       tls 					    (krp->krp_param[i].crp_p,
   1579  1.36       tls 					    krp->crk_param[i].crp_p, size);
   1580  1.36       tls 					if (crypt_res[req].status) {
   1581  1.36       tls 						DPRINTF(("cryptodev_key: "
   1582  1.42  christos 						    "copyout oparam %d failed, "
   1583  1.42  christos 						    "error=%d\n",
   1584  1.42  christos 						    i - krp->krp_iparams,
   1585  1.42  christos 						    crypt_res[req].status));
   1586  1.36       tls 						goto fail;
   1587  1.36       tls 					}
   1588  1.36       tls 				}
   1589  1.36       tls fail:
   1590  1.36       tls 				TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
   1591  1.36       tls 				/* not sure what to do for this */
   1592  1.36       tls 				/* kop[req].crk_status = krp->krp_status; */
   1593  1.36       tls 				SLIST_INSERT_HEAD(&krp_delfree_l, krp,
   1594  1.42  christos 				    krp_qun.krp_lnext);
   1595  1.36       tls 			}
   1596  1.36       tls 			req++;
   1597  1.36       tls 		}
   1598  1.36       tls 	}
   1599  1.36       tls 	mutex_spin_exit(&crypto_mtx);
   1600  1.36       tls 
   1601  1.36       tls 	while(!SLIST_EMPTY(&crp_delfree_l)) {
   1602  1.36       tls 		crp = SLIST_FIRST(&crp_delfree_l);
   1603  1.36       tls 		SLIST_REMOVE_HEAD(&crp_delfree_l, crp_qun.crp_lnext);
   1604  1.36       tls 		kmem_free(crp->uio.uio_iov[0].iov_base,
   1605  1.42  christos 		    crp->uio.uio_iov[0].iov_len);
   1606  1.36       tls 		crypto_freereq(crp);
   1607  1.36       tls 	}
   1608  1.36       tls 
   1609  1.36       tls 	while(!SLIST_EMPTY(&krp_delfree_l)) {
   1610  1.36       tls 		krp = SLIST_FIRST(&krp_delfree_l);
   1611  1.36       tls 		for (i = 0; i < CRK_MAXPARAM; i++) {
   1612  1.36       tls 			struct crparam *kp = &(krp->krp_param[i]);
   1613  1.36       tls 			if (kp->crp_p) {
   1614  1.42  christos 				size = (kp->crp_nbits + 7) / 8;
   1615  1.42  christos 				KASSERT(size > 0);
   1616  1.42  christos 				(void)memset(kp->crp_p, 0, size);
   1617  1.42  christos 				kmem_free(kp->crp_p, size);
   1618  1.36       tls 			}
   1619  1.36       tls 		}
   1620  1.36       tls 		SLIST_REMOVE_HEAD(&krp_delfree_l, krp_qun.krp_lnext);
   1621  1.36       tls 		pool_put(&cryptkop_pool, krp);
   1622  1.36       tls 	}
   1623  1.36       tls 	return completed;
   1624  1.36       tls }
   1625  1.36       tls 
   1626  1.36       tls static int
   1627  1.36       tls cryptodev_getstatus (struct fcrypt *fcr, struct crypt_result *crypt_res)
   1628  1.36       tls {
   1629  1.36       tls         struct cryptop *crp = NULL;
   1630  1.36       tls         struct cryptkop *krp = NULL;
   1631  1.36       tls         struct csession *cse;
   1632  1.36       tls         int i, size, req = 0;
   1633  1.36       tls 
   1634  1.36       tls 	mutex_spin_enter(&crypto_mtx);
   1635  1.36       tls 	/* Here we dont know for which request the user is requesting the
   1636  1.36       tls 	 * response so checking in both the queues */
   1637  1.36       tls 	TAILQ_FOREACH(crp, &fcr->crp_ret_mq, crp_next) {
   1638  1.36       tls 		if(crp && (crp->crp_reqid == crypt_res->reqid)) {
   1639  1.36       tls 			cse = (struct csession *)crp->crp_opaque;
   1640  1.36       tls 		        crypt_res->opaque = crp->crp_usropaque;
   1641  1.36       tls 			cse = csefind(fcr, cse->ses);
   1642  1.36       tls 			if (cse == NULL) {
   1643  1.36       tls 				DPRINTF(("csefind failed\n"));
   1644  1.36       tls 				crypt_res->status = EINVAL;
   1645  1.36       tls 				goto bail;
   1646  1.36       tls 			}
   1647  1.36       tls 
   1648  1.36       tls 			if (crp->crp_etype != 0) {
   1649  1.36       tls 				crypt_res->status = crp->crp_etype;
   1650  1.36       tls 				goto bail;
   1651  1.36       tls 			}
   1652  1.36       tls 
   1653  1.36       tls 			if (cse->error) {
   1654  1.36       tls 				crypt_res->status = cse->error;
   1655  1.36       tls 				goto bail;
   1656  1.36       tls 			}
   1657  1.36       tls 
   1658  1.42  christos 			if (crp->dst && (crypt_res->status =
   1659  1.42  christos 			    copyout(crp->uio.uio_iov[0].iov_base,
   1660  1.42  christos 			    crp->dst, crp->len)))
   1661  1.36       tls 				goto bail;
   1662  1.36       tls 
   1663  1.42  christos 			if (crp->mac && (crypt_res->status =
   1664  1.42  christos 			    copyout(crp->crp_mac, crp->mac,
   1665  1.42  christos 			    cse->thash->authsize)))
   1666  1.36       tls 				goto bail;
   1667  1.36       tls bail:
   1668  1.36       tls 			TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
   1669  1.36       tls 
   1670  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1671  1.36       tls 			crypto_freereq(crp);
   1672  1.36       tls 			return 0;
   1673  1.36       tls 		}
   1674  1.36       tls 	}
   1675  1.36       tls 
   1676  1.36       tls 	TAILQ_FOREACH(krp, &fcr->crp_ret_mkq, krp_next) {
   1677  1.36       tls 		if(krp && (krp->krp_reqid == crypt_res->reqid)) {
   1678  1.36       tls 			crypt_res[req].opaque = krp->krp_usropaque;
   1679  1.36       tls 			if (krp->krp_status != 0) {
   1680  1.36       tls 				DPRINTF(("cryptodev_key: "
   1681  1.42  christos 				    "krp->krp_status 0x%08x\n",
   1682  1.42  christos 				    krp->krp_status));
   1683  1.36       tls 				crypt_res[req].status = krp->krp_status;
   1684  1.36       tls 				goto fail;
   1685  1.36       tls 			}
   1686  1.36       tls 
   1687  1.42  christos 			for (i = krp->krp_iparams; i < krp->krp_iparams +
   1688  1.42  christos 			    krp->krp_oparams; i++) {
   1689  1.36       tls 				size = (krp->krp_param[i].crp_nbits + 7) / 8;
   1690  1.36       tls 				if (size == 0)
   1691  1.36       tls 					continue;
   1692  1.42  christos 				crypt_res[req].status = copyout(
   1693  1.42  christos 				    krp->krp_param[i].crp_p,
   1694  1.42  christos 				    krp->crk_param[i].crp_p, size);
   1695  1.36       tls 				if (crypt_res[req].status) {
   1696  1.36       tls 					DPRINTF(("cryptodev_key: copyout oparam"
   1697  1.42  christos 					    "%d failed, error=%d\n",
   1698  1.42  christos 					    i - krp->krp_iparams,
   1699  1.42  christos 					    crypt_res[req].status));
   1700  1.36       tls 					goto fail;
   1701  1.36       tls 				}
   1702  1.36       tls 			}
   1703  1.36       tls fail:
   1704  1.36       tls 			TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
   1705  1.36       tls 			mutex_spin_exit(&crypto_mtx);
   1706  1.36       tls 			/* not sure what to do for this */
   1707  1.36       tls 			/* kop[req].crk_status = krp->krp_status; */
   1708  1.36       tls 			for (i = 0; i < CRK_MAXPARAM; i++) {
   1709  1.36       tls 				struct crparam *kp = &(krp->krp_param[i]);
   1710  1.36       tls 				if (kp->crp_p) {
   1711  1.36       tls 					size = (kp->crp_nbits + 7) / 8;
   1712  1.36       tls 					KASSERT(size > 0);
   1713  1.36       tls 					memset(kp->crp_p, 0, size);
   1714  1.36       tls 					kmem_free(kp->crp_p, size);
   1715  1.36       tls 				}
   1716  1.36       tls 			}
   1717  1.36       tls 			pool_put(&cryptkop_pool, krp);
   1718  1.36       tls 			return 0;
   1719  1.36       tls 		}
   1720  1.36       tls 	}
   1721  1.36       tls 	mutex_spin_exit(&crypto_mtx);
   1722  1.36       tls 	return EINPROGRESS;
   1723  1.36       tls }
   1724  1.36       tls 
   1725  1.36       tls static int
   1726  1.36       tls cryptof_poll(struct file *fp, int events)
   1727  1.36       tls {
   1728  1.36       tls 	struct fcrypt *fcr = (struct fcrypt *)fp->f_data;
   1729  1.38     rmind 	int revents = 0;
   1730  1.36       tls 
   1731  1.36       tls 	if (!(events & (POLLIN | POLLRDNORM))) {
   1732  1.36       tls 		/* only support read and POLLIN */
   1733  1.36       tls 		return 0;
   1734  1.36       tls 	}
   1735  1.36       tls 
   1736  1.38     rmind 	mutex_spin_enter(&crypto_mtx);
   1737  1.36       tls 	if (TAILQ_EMPTY(&fcr->crp_ret_mq) && TAILQ_EMPTY(&fcr->crp_ret_mkq)) {
   1738  1.38     rmind 		/* no completed requests pending, save the poll for later */
   1739  1.36       tls 		selrecord(curlwp, &fcr->sinfo);
   1740  1.36       tls 	} else {
   1741  1.36       tls 		/* let the app(s) know that there are completed requests */
   1742  1.38     rmind 		revents = events & (POLLIN | POLLRDNORM);
   1743  1.36       tls 	}
   1744  1.38     rmind 	mutex_spin_exit(&crypto_mtx);
   1745  1.38     rmind 
   1746  1.38     rmind 	return revents;
   1747  1.36       tls }
   1748  1.36       tls 
   1749  1.15   thorpej /*
   1750  1.15   thorpej  * Pseudo-device initialization routine for /dev/crypto
   1751  1.15   thorpej  */
   1752  1.15   thorpej void	cryptoattach(int);
   1753  1.15   thorpej 
   1754  1.15   thorpej void
   1755  1.25  christos cryptoattach(int num)
   1756  1.15   thorpej {
   1757  1.29       tls 	pool_init(&fcrpl, sizeof(struct fcrypt), 0, 0, 0, "fcrpl",
   1758  1.42  christos 	    NULL, IPL_NET);	/* XXX IPL_NET ("splcrypto") */
   1759  1.29       tls 	pool_init(&csepl, sizeof(struct csession), 0, 0, 0, "csepl",
   1760  1.42  christos 	    NULL, IPL_NET);	/* XXX IPL_NET ("splcrypto") */
   1761  1.29       tls 
   1762  1.29       tls 	/*
   1763  1.29       tls 	 * Preallocate space for 64 users, with 5 sessions each.
   1764  1.29       tls 	 * (consider that a TLS protocol session requires at least
   1765  1.29       tls 	 * 3DES, MD5, and SHA1 (both hashes are used in the PRF) for
   1766  1.29       tls 	 * the negotiation, plus HMAC_SHA1 for the actual SSL records,
   1767  1.29       tls 	 * consuming one session here for each algorithm.
   1768  1.29       tls 	 */
   1769  1.29       tls 	pool_prime(&fcrpl, 64);
   1770  1.29       tls 	pool_prime(&csepl, 64 * 5);
   1771  1.15   thorpej }
   1772