cryptodev.c revision 1.53 1 1.53 jakllsch /* $NetBSD: cryptodev.c,v 1.53 2010/08/02 19:59:35 jakllsch 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 1.53 jakllsch __KERNEL_RCSID(0, "$NetBSD: cryptodev.c,v 1.53 2010/08/02 19:59:35 jakllsch 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 1.51 dsl .fo_restart = fnullop_restart,
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 1.49 christos mutex_spin_enter(&crypto_mtx);
237 1.48 christos getnanotime(&fcr->atime);
238 1.49 christos mutex_spin_exit(&crypto_mtx);
239 1.48 christos
240 1.36 tls switch (cmd) {
241 1.29 tls case CRIOGET: /* XXX deprecated, remove after 5.0 */
242 1.36 tls if ((error = fd_allocfile(&criofp, &criofd)) != 0)
243 1.36 tls return error;
244 1.36 tls criofcr = pool_get(&fcrpl, PR_WAITOK);
245 1.33 tls mutex_spin_enter(&crypto_mtx);
246 1.36 tls TAILQ_INIT(&criofcr->csessions);
247 1.36 tls TAILQ_INIT(&criofcr->crp_ret_mq);
248 1.36 tls TAILQ_INIT(&criofcr->crp_ret_mkq);
249 1.36 tls selinit(&criofcr->sinfo);
250 1.36 tls
251 1.29 tls /*
252 1.29 tls * Don't ever return session 0, to allow detection of
253 1.29 tls * failed creation attempts with multi-create ioctl.
254 1.29 tls */
255 1.36 tls criofcr->sesn = 1;
256 1.36 tls criofcr->requestid = 1;
257 1.33 tls mutex_spin_exit(&crypto_mtx);
258 1.36 tls (void)fd_clone(criofp, criofd, (FREAD|FWRITE),
259 1.29 tls &cryptofops, criofcr);
260 1.36 tls *(u_int32_t *)data = criofd;
261 1.29 tls return error;
262 1.36 tls break;
263 1.1 jonathan case CIOCGSESSION:
264 1.1 jonathan sop = (struct session_op *)data;
265 1.36 tls error = cryptodev_session(fcr, sop);
266 1.36 tls break;
267 1.36 tls case CIOCNGSESSION:
268 1.36 tls sgop = (struct crypt_sgop *)data;
269 1.36 tls snop = kmem_alloc((sgop->count *
270 1.36 tls sizeof(struct session_n_op)), KM_SLEEP);
271 1.36 tls error = copyin(sgop->sessions, snop, sgop->count *
272 1.36 tls sizeof(struct session_n_op));
273 1.36 tls if (error) {
274 1.36 tls goto mbail;
275 1.1 jonathan }
276 1.1 jonathan
277 1.49 christos mutex_spin_enter(&crypto_mtx);
278 1.48 christos fcr->mtime = fcr->atime;
279 1.49 christos mutex_spin_exit(&crypto_mtx);
280 1.36 tls error = cryptodev_msession(fcr, snop, sgop->count);
281 1.36 tls if (error) {
282 1.36 tls goto mbail;
283 1.1 jonathan }
284 1.1 jonathan
285 1.36 tls error = copyout(snop, sgop->sessions, sgop->count *
286 1.42 christos sizeof(struct session_n_op));
287 1.36 tls mbail:
288 1.39 tls kmem_free(snop, sgop->count * sizeof(struct session_n_op));
289 1.1 jonathan break;
290 1.1 jonathan case CIOCFSESSION:
291 1.49 christos mutex_spin_enter(&crypto_mtx);
292 1.48 christos fcr->mtime = fcr->atime;
293 1.1 jonathan ses = *(u_int32_t *)data;
294 1.1 jonathan cse = csefind(fcr, ses);
295 1.1 jonathan if (cse == NULL)
296 1.42 christos return EINVAL;
297 1.1 jonathan csedelete(fcr, cse);
298 1.1 jonathan error = csefree(cse);
299 1.33 tls mutex_spin_exit(&crypto_mtx);
300 1.1 jonathan break;
301 1.36 tls case CIOCNFSESSION:
302 1.49 christos mutex_spin_enter(&crypto_mtx);
303 1.48 christos fcr->mtime = fcr->atime;
304 1.49 christos mutex_spin_exit(&crypto_mtx);
305 1.36 tls sfop = (struct crypt_sfop *)data;
306 1.36 tls sesid = kmem_alloc((sfop->count * sizeof(u_int32_t)),
307 1.42 christos KM_SLEEP);
308 1.42 christos error = copyin(sfop->sesid, sesid,
309 1.42 christos (sfop->count * sizeof(u_int32_t)));
310 1.36 tls if (!error) {
311 1.36 tls error = cryptodev_msessionfin(fcr, sfop->count, sesid);
312 1.36 tls }
313 1.36 tls kmem_free(sesid, (sfop->count * sizeof(u_int32_t)));
314 1.36 tls break;
315 1.1 jonathan case CIOCCRYPT:
316 1.49 christos mutex_spin_enter(&crypto_mtx);
317 1.48 christos fcr->mtime = fcr->atime;
318 1.1 jonathan cop = (struct crypt_op *)data;
319 1.1 jonathan cse = csefind(fcr, cop->ses);
320 1.33 tls mutex_spin_exit(&crypto_mtx);
321 1.18 christos if (cse == NULL) {
322 1.18 christos DPRINTF(("csefind failed\n"));
323 1.42 christos return EINVAL;
324 1.18 christos }
325 1.35 ad error = cryptodev_op(cse, cop, curlwp);
326 1.34 tls DPRINTF(("cryptodev_op error = %d\n", error));
327 1.1 jonathan break;
328 1.36 tls case CIOCNCRYPTM:
329 1.49 christos mutex_spin_enter(&crypto_mtx);
330 1.48 christos fcr->mtime = fcr->atime;
331 1.49 christos mutex_spin_exit(&crypto_mtx);
332 1.36 tls mop = (struct crypt_mop *)data;
333 1.36 tls cnop = kmem_alloc((mop->count * sizeof(struct crypt_n_op)),
334 1.42 christos KM_SLEEP);
335 1.42 christos error = copyin(mop->reqs, cnop,
336 1.42 christos (mop->count * sizeof(struct crypt_n_op)));
337 1.36 tls if(!error) {
338 1.42 christos error = cryptodev_mop(fcr, cnop, mop->count, curlwp);
339 1.36 tls if (!error) {
340 1.36 tls error = copyout(cnop, mop->reqs,
341 1.42 christos (mop->count * sizeof(struct crypt_n_op)));
342 1.36 tls }
343 1.36 tls }
344 1.36 tls kmem_free(cnop, (mop->count * sizeof(struct crypt_n_op)));
345 1.36 tls break;
346 1.1 jonathan case CIOCKEY:
347 1.1 jonathan error = cryptodev_key((struct crypt_kop *)data);
348 1.34 tls DPRINTF(("cryptodev_key error = %d\n", error));
349 1.1 jonathan break;
350 1.36 tls case CIOCNFKEYM:
351 1.49 christos mutex_spin_enter(&crypto_mtx);
352 1.48 christos fcr->mtime = fcr->atime;
353 1.49 christos mutex_spin_exit(&crypto_mtx);
354 1.36 tls mkop = (struct crypt_mkop *)data;
355 1.36 tls knop = kmem_alloc((mkop->count * sizeof(struct crypt_n_kop)),
356 1.42 christos KM_SLEEP);
357 1.36 tls error = copyin(mkop->reqs, knop,
358 1.42 christos (mkop->count * sizeof(struct crypt_n_kop)));
359 1.36 tls if (!error) {
360 1.36 tls error = cryptodev_mkey(fcr, knop, mkop->count);
361 1.36 tls if (!error)
362 1.36 tls error = copyout(knop, mkop->reqs,
363 1.42 christos (mkop->count * sizeof(struct crypt_n_kop)));
364 1.36 tls }
365 1.36 tls kmem_free(knop, (mkop->count * sizeof(struct crypt_n_kop)));
366 1.36 tls break;
367 1.1 jonathan case CIOCASYMFEAT:
368 1.1 jonathan error = crypto_getfeat((int *)data);
369 1.1 jonathan break;
370 1.36 tls case CIOCNCRYPTRETM:
371 1.49 christos mutex_spin_enter(&crypto_mtx);
372 1.48 christos fcr->mtime = fcr->atime;
373 1.49 christos mutex_spin_exit(&crypto_mtx);
374 1.36 tls crypt_ret = (struct cryptret *)data;
375 1.36 tls count = crypt_ret->count;
376 1.42 christos crypt_res = kmem_alloc((count * sizeof(struct crypt_result)),
377 1.42 christos KM_SLEEP);
378 1.36 tls error = copyin(crypt_ret->results, crypt_res,
379 1.42 christos (count * sizeof(struct crypt_result)));
380 1.36 tls if (error)
381 1.36 tls goto reterr;
382 1.36 tls crypt_ret->count = cryptodev_getmstatus(fcr, crypt_res,
383 1.42 christos crypt_ret->count);
384 1.36 tls /* sanity check count */
385 1.36 tls if (crypt_ret->count > count) {
386 1.37 dogcow printf("%s.%d: error returned count %zd > original "
387 1.42 christos " count %zd\n",
388 1.42 christos __FILE__, __LINE__, crypt_ret->count, count);
389 1.36 tls crypt_ret->count = count;
390 1.36 tls
391 1.36 tls }
392 1.36 tls error = copyout(crypt_res, crypt_ret->results,
393 1.42 christos (crypt_ret->count * sizeof(struct crypt_result)));
394 1.36 tls reterr:
395 1.42 christos kmem_free(crypt_res, (count * sizeof(struct crypt_result)));
396 1.36 tls break;
397 1.36 tls case CIOCNCRYPTRET:
398 1.36 tls error = cryptodev_getstatus(fcr, (struct crypt_result *)data);
399 1.36 tls break;
400 1.1 jonathan default:
401 1.46 darran /* Check for backward compatible commands */
402 1.46 darran error = ocryptof_ioctl(fp, cmd, data);
403 1.1 jonathan }
404 1.42 christos return error;
405 1.1 jonathan }
406 1.1 jonathan
407 1.46 darran int
408 1.25 christos cryptodev_op(struct csession *cse, struct crypt_op *cop, struct lwp *l)
409 1.1 jonathan {
410 1.1 jonathan struct cryptop *crp = NULL;
411 1.46 darran struct cryptodesc *crde = NULL, *crda = NULL, *crdc = NULL;
412 1.33 tls int error;
413 1.46 darran int iov_len = cop->len;
414 1.46 darran int flags=0;
415 1.46 darran int dst_len; /* copyout size */
416 1.1 jonathan
417 1.1 jonathan if (cop->len > 256*1024-4)
418 1.42 christos return E2BIG;
419 1.1 jonathan
420 1.13 jonathan if (cse->txform) {
421 1.13 jonathan if (cop->len == 0 || (cop->len % cse->txform->blocksize) != 0)
422 1.42 christos return EINVAL;
423 1.13 jonathan }
424 1.1 jonathan
425 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: iov_len %d\n",
426 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), iov_len));
427 1.46 darran if ((cse->tcomp) && cop->dst_len) {
428 1.46 darran if (iov_len < cop->dst_len) {
429 1.46 darran /* Need larger iov to deal with decompress */
430 1.46 darran iov_len = cop->dst_len;
431 1.46 darran }
432 1.46 darran DPRINTF(("cryptodev_op: iov_len -> %d for decompress\n", iov_len));
433 1.46 darran }
434 1.46 darran
435 1.42 christos (void)memset(&cse->uio, 0, sizeof(cse->uio));
436 1.1 jonathan cse->uio.uio_iovcnt = 1;
437 1.1 jonathan cse->uio.uio_resid = 0;
438 1.1 jonathan cse->uio.uio_rw = UIO_WRITE;
439 1.1 jonathan cse->uio.uio_iov = cse->iovec;
440 1.17 yamt UIO_SETUP_SYSSPACE(&cse->uio);
441 1.29 tls memset(&cse->iovec, 0, sizeof(cse->iovec));
442 1.46 darran
443 1.46 darran /* the iov needs to be big enough to handle the uncompressed
444 1.46 darran * data.... */
445 1.46 darran cse->uio.uio_iov[0].iov_len = iov_len;
446 1.46 darran cse->uio.uio_iov[0].iov_base = kmem_alloc(iov_len, KM_SLEEP);
447 1.29 tls cse->uio.uio_resid = cse->uio.uio_iov[0].iov_len;
448 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: uio.iov_base %p malloced %d bytes\n",
449 1.53 jakllsch CRYPTO_SESID2LID(cse->sid),
450 1.53 jakllsch cse->uio.uio_iov[0].iov_base, iov_len));
451 1.1 jonathan
452 1.46 darran crp = crypto_getreq((cse->tcomp != NULL) + (cse->txform != NULL) + (cse->thash != NULL));
453 1.1 jonathan if (crp == NULL) {
454 1.1 jonathan error = ENOMEM;
455 1.1 jonathan goto bail;
456 1.1 jonathan }
457 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: crp %p\n",
458 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), crp));
459 1.46 darran
460 1.46 darran /* crds are always ordered tcomp, thash, then txform */
461 1.46 darran /* with optional missing links */
462 1.46 darran
463 1.46 darran /* XXX: If we're going to compress then hash or encrypt, we need
464 1.46 darran * to be able to pass on the new size of the data.
465 1.46 darran */
466 1.46 darran
467 1.46 darran if (cse->tcomp) {
468 1.46 darran crdc = crp->crp_desc;
469 1.46 darran }
470 1.1 jonathan
471 1.1 jonathan if (cse->thash) {
472 1.46 darran crda = crdc ? crdc->crd_next : crp->crp_desc;
473 1.44 christos if (cse->txform && crda)
474 1.1 jonathan crde = crda->crd_next;
475 1.1 jonathan } else {
476 1.46 darran if (cse->txform) {
477 1.46 darran crde = crdc ? crdc->crd_next : crp->crp_desc;
478 1.46 darran } else if (!cse->tcomp) {
479 1.1 jonathan error = EINVAL;
480 1.1 jonathan goto bail;
481 1.1 jonathan }
482 1.1 jonathan }
483 1.1 jonathan
484 1.53 jakllsch DPRINTF(("ocf[%u]: iov_len %zu, cop->len %u\n",
485 1.53 jakllsch CRYPTO_SESID2LID(cse->sid),
486 1.46 darran cse->uio.uio_iov[0].iov_len,
487 1.46 darran cop->len));
488 1.46 darran
489 1.1 jonathan if ((error = copyin(cop->src, cse->uio.uio_iov[0].iov_base, cop->len)))
490 1.36 tls {
491 1.36 tls printf("copyin failed %s %d \n", (char *)cop->src, error);
492 1.1 jonathan goto bail;
493 1.36 tls }
494 1.1 jonathan
495 1.46 darran if (crdc) {
496 1.46 darran switch (cop->op) {
497 1.46 darran case COP_COMP:
498 1.46 darran crdc->crd_flags |= CRD_F_COMP;
499 1.46 darran break;
500 1.46 darran case COP_DECOMP:
501 1.46 darran crdc->crd_flags &= ~CRD_F_COMP;
502 1.46 darran break;
503 1.46 darran default:
504 1.46 darran break;
505 1.46 darran }
506 1.46 darran /* more data to follow? */
507 1.46 darran if (cop->flags & COP_F_MORE) {
508 1.46 darran flags |= CRYPTO_F_MORE;
509 1.46 darran }
510 1.46 darran crdc->crd_len = cop->len;
511 1.46 darran crdc->crd_inject = 0;
512 1.46 darran
513 1.46 darran crdc->crd_alg = cse->comp_alg;
514 1.46 darran crdc->crd_key = NULL;
515 1.46 darran crdc->crd_klen = 0;
516 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: crdc setup for comp_alg %d.\n",
517 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), crdc->crd_alg));
518 1.46 darran }
519 1.46 darran
520 1.1 jonathan if (crda) {
521 1.1 jonathan crda->crd_skip = 0;
522 1.1 jonathan crda->crd_len = cop->len;
523 1.1 jonathan crda->crd_inject = 0; /* ??? */
524 1.1 jonathan
525 1.1 jonathan crda->crd_alg = cse->mac;
526 1.1 jonathan crda->crd_key = cse->mackey;
527 1.1 jonathan crda->crd_klen = cse->mackeylen * 8;
528 1.46 darran DPRINTF(("cryptodev_op: crda setup for mac %d.\n", crda->crd_alg));
529 1.1 jonathan }
530 1.1 jonathan
531 1.1 jonathan if (crde) {
532 1.46 darran switch (cop->op) {
533 1.46 darran case COP_ENCRYPT:
534 1.1 jonathan crde->crd_flags |= CRD_F_ENCRYPT;
535 1.46 darran break;
536 1.46 darran case COP_DECRYPT:
537 1.1 jonathan crde->crd_flags &= ~CRD_F_ENCRYPT;
538 1.46 darran break;
539 1.46 darran default:
540 1.46 darran break;
541 1.46 darran }
542 1.1 jonathan crde->crd_len = cop->len;
543 1.1 jonathan crde->crd_inject = 0;
544 1.1 jonathan
545 1.1 jonathan crde->crd_alg = cse->cipher;
546 1.1 jonathan crde->crd_key = cse->key;
547 1.1 jonathan crde->crd_klen = cse->keylen * 8;
548 1.46 darran DPRINTF(("cryptodev_op: crde setup for cipher %d.\n", crde->crd_alg));
549 1.1 jonathan }
550 1.1 jonathan
551 1.46 darran
552 1.1 jonathan crp->crp_ilen = cop->len;
553 1.45 darran /* The reqest is flagged as CRYPTO_F_USER as long as it is running
554 1.45 darran * in the user IOCTL thread. This flag lets us skip using the retq for
555 1.45 darran * the request if it completes immediately. If the request ends up being
556 1.45 darran * delayed or is not completed immediately the flag is removed.
557 1.45 darran */
558 1.46 darran crp->crp_flags = CRYPTO_F_IOV | (cop->flags & COP_F_BATCH) | CRYPTO_F_USER |
559 1.46 darran flags;
560 1.26 christos crp->crp_buf = (void *)&cse->uio;
561 1.1 jonathan crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
562 1.1 jonathan crp->crp_sid = cse->sid;
563 1.1 jonathan crp->crp_opaque = (void *)cse;
564 1.1 jonathan
565 1.1 jonathan if (cop->iv) {
566 1.1 jonathan if (crde == NULL) {
567 1.1 jonathan error = EINVAL;
568 1.1 jonathan goto bail;
569 1.1 jonathan }
570 1.1 jonathan if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
571 1.1 jonathan error = EINVAL;
572 1.1 jonathan goto bail;
573 1.1 jonathan }
574 1.36 tls if ((error = copyin(cop->iv, cse->tmp_iv,
575 1.42 christos cse->txform->blocksize)))
576 1.1 jonathan goto bail;
577 1.42 christos (void)memcpy(crde->crd_iv, cse->tmp_iv, cse->txform->blocksize);
578 1.1 jonathan crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
579 1.1 jonathan crde->crd_skip = 0;
580 1.1 jonathan } else if (crde) {
581 1.20 christos if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
582 1.20 christos crde->crd_skip = 0;
583 1.20 christos } else {
584 1.20 christos crde->crd_flags |= CRD_F_IV_PRESENT;
585 1.20 christos crde->crd_skip = cse->txform->blocksize;
586 1.20 christos crde->crd_len -= cse->txform->blocksize;
587 1.20 christos }
588 1.1 jonathan }
589 1.1 jonathan
590 1.1 jonathan if (cop->mac) {
591 1.1 jonathan if (crda == NULL) {
592 1.1 jonathan error = EINVAL;
593 1.1 jonathan goto bail;
594 1.1 jonathan }
595 1.1 jonathan crp->crp_mac=cse->tmp_mac;
596 1.1 jonathan }
597 1.1 jonathan
598 1.33 tls /*
599 1.33 tls * XXX there was a comment here which said that we went to
600 1.33 tls * XXX splcrypto() but needed to only if CRYPTO_F_CBIMM,
601 1.33 tls * XXX disabled on NetBSD since 1.6O due to a race condition.
602 1.33 tls * XXX But crypto_dispatch went to splcrypto() itself! (And
603 1.33 tls * XXX now takes the crypto_mtx mutex itself). We do, however,
604 1.33 tls * XXX need to hold the mutex across the call to cv_wait().
605 1.33 tls * XXX (should we arrange for crypto_dispatch to return to
606 1.33 tls * XXX us with it held? it seems quite ugly to do so.)
607 1.33 tls */
608 1.36 tls #ifdef notyet
609 1.36 tls eagain:
610 1.36 tls #endif
611 1.1 jonathan error = crypto_dispatch(crp);
612 1.33 tls mutex_spin_enter(&crypto_mtx);
613 1.36 tls
614 1.45 darran /*
615 1.45 darran * If the request was going to be completed by the
616 1.45 darran * ioctl thread then it would have been done by now.
617 1.52 hubertf * Remove the F_USER flag so crypto_done() is not confused
618 1.45 darran * if the crypto device calls it after this point.
619 1.45 darran */
620 1.45 darran crp->crp_flags &= ~(CRYPTO_F_USER);
621 1.45 darran
622 1.36 tls switch (error) {
623 1.36 tls #ifdef notyet /* don't loop forever -- but EAGAIN not possible here yet */
624 1.36 tls case EAGAIN:
625 1.36 tls mutex_spin_exit(&crypto_mtx);
626 1.36 tls goto eagain;
627 1.36 tls break;
628 1.36 tls #endif
629 1.36 tls case 0:
630 1.36 tls break;
631 1.36 tls default:
632 1.33 tls DPRINTF(("cryptodev_op: not waiting, error.\n"));
633 1.33 tls mutex_spin_exit(&crypto_mtx);
634 1.1 jonathan goto bail;
635 1.1 jonathan }
636 1.45 darran
637 1.33 tls while (!(crp->crp_flags & CRYPTO_F_DONE)) {
638 1.53 jakllsch DPRINTF(("cryptodev_op[%d]: sleeping on cv %p for crp %p\n",
639 1.53 jakllsch (uint32_t)cse->sid, &crp->crp_cv, crp));
640 1.33 tls cv_wait(&crp->crp_cv, &crypto_mtx); /* XXX cv_wait_sig? */
641 1.33 tls }
642 1.33 tls if (crp->crp_flags & CRYPTO_F_ONRETQ) {
643 1.45 darran /* XXX this should never happen now with the CRYPTO_F_USER flag
644 1.45 darran * changes.
645 1.45 darran */
646 1.33 tls DPRINTF(("cryptodev_op: DONE, not woken by cryptoret.\n"));
647 1.33 tls (void)crypto_ret_q_remove(crp);
648 1.33 tls }
649 1.33 tls mutex_spin_exit(&crypto_mtx);
650 1.1 jonathan
651 1.1 jonathan if (crp->crp_etype != 0) {
652 1.34 tls DPRINTF(("cryptodev_op: crp_etype %d\n", crp->crp_etype));
653 1.1 jonathan error = crp->crp_etype;
654 1.1 jonathan goto bail;
655 1.1 jonathan }
656 1.1 jonathan
657 1.1 jonathan if (cse->error) {
658 1.34 tls DPRINTF(("cryptodev_op: cse->error %d\n", cse->error));
659 1.1 jonathan error = cse->error;
660 1.1 jonathan goto bail;
661 1.1 jonathan }
662 1.1 jonathan
663 1.46 darran dst_len = crp->crp_ilen;
664 1.46 darran /* let the user know how much data was returned */
665 1.46 darran if (crp->crp_olen) {
666 1.46 darran dst_len = cop->dst_len = crp->crp_olen;
667 1.46 darran }
668 1.46 darran crp->len = dst_len;
669 1.46 darran
670 1.46 darran if (cop->dst) {
671 1.46 darran DPRINTF(("cryptodev_op: copyout %d bytes to %p\n", dst_len, cop->dst));
672 1.46 darran }
673 1.1 jonathan if (cop->dst &&
674 1.46 darran (error = copyout(cse->uio.uio_iov[0].iov_base, cop->dst, dst_len)))
675 1.36 tls {
676 1.34 tls DPRINTF(("cryptodev_op: copyout error %d\n", error));
677 1.1 jonathan goto bail;
678 1.34 tls }
679 1.1 jonathan
680 1.1 jonathan if (cop->mac &&
681 1.34 tls (error = copyout(crp->crp_mac, cop->mac, cse->thash->authsize))) {
682 1.34 tls DPRINTF(("cryptodev_op: mac copyout error %d\n", error));
683 1.1 jonathan goto bail;
684 1.34 tls }
685 1.1 jonathan
686 1.46 darran
687 1.1 jonathan bail:
688 1.45 darran if (crp) {
689 1.1 jonathan crypto_freereq(crp);
690 1.45 darran }
691 1.46 darran if (cse->uio.uio_iov[0].iov_base) {
692 1.46 darran kmem_free(cse->uio.uio_iov[0].iov_base,iov_len);
693 1.46 darran }
694 1.1 jonathan
695 1.42 christos return error;
696 1.1 jonathan }
697 1.1 jonathan
698 1.1 jonathan static int
699 1.1 jonathan cryptodev_cb(void *op)
700 1.1 jonathan {
701 1.1 jonathan struct cryptop *crp = (struct cryptop *) op;
702 1.1 jonathan struct csession *cse = (struct csession *)crp->crp_opaque;
703 1.33 tls int error = 0;
704 1.1 jonathan
705 1.33 tls mutex_spin_enter(&crypto_mtx);
706 1.1 jonathan cse->error = crp->crp_etype;
707 1.33 tls if (crp->crp_etype == EAGAIN) {
708 1.33 tls /* always drop mutex to call dispatch routine */
709 1.33 tls mutex_spin_exit(&crypto_mtx);
710 1.33 tls error = crypto_dispatch(crp);
711 1.33 tls mutex_spin_enter(&crypto_mtx);
712 1.33 tls }
713 1.33 tls if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
714 1.33 tls cv_signal(&crp->crp_cv);
715 1.33 tls }
716 1.33 tls mutex_spin_exit(&crypto_mtx);
717 1.42 christos return 0;
718 1.1 jonathan }
719 1.1 jonathan
720 1.1 jonathan static int
721 1.36 tls cryptodev_mcb(void *op)
722 1.36 tls {
723 1.36 tls struct cryptop *crp = (struct cryptop *) op;
724 1.36 tls struct csession *cse = (struct csession *)crp->crp_opaque;
725 1.36 tls int error=0;
726 1.36 tls
727 1.36 tls mutex_spin_enter(&crypto_mtx);
728 1.36 tls cse->error = crp->crp_etype;
729 1.36 tls if (crp->crp_etype == EAGAIN) {
730 1.36 tls mutex_spin_exit(&crypto_mtx);
731 1.36 tls error = crypto_dispatch(crp);
732 1.36 tls mutex_spin_enter(&crypto_mtx);
733 1.36 tls }
734 1.36 tls if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
735 1.36 tls cv_signal(&crp->crp_cv);
736 1.36 tls }
737 1.36 tls
738 1.36 tls TAILQ_INSERT_TAIL(&crp->fcrp->crp_ret_mq, crp, crp_next);
739 1.38 rmind selnotify(&crp->fcrp->sinfo, 0, 0);
740 1.36 tls mutex_spin_exit(&crypto_mtx);
741 1.42 christos return 0;
742 1.36 tls }
743 1.36 tls
744 1.36 tls static int
745 1.1 jonathan cryptodevkey_cb(void *op)
746 1.1 jonathan {
747 1.42 christos struct cryptkop *krp = op;
748 1.36 tls
749 1.36 tls mutex_spin_enter(&crypto_mtx);
750 1.36 tls cv_signal(&krp->krp_cv);
751 1.36 tls mutex_spin_exit(&crypto_mtx);
752 1.42 christos return 0;
753 1.36 tls }
754 1.36 tls
755 1.36 tls static int
756 1.36 tls cryptodevkey_mcb(void *op)
757 1.36 tls {
758 1.42 christos struct cryptkop *krp = op;
759 1.1 jonathan
760 1.33 tls mutex_spin_enter(&crypto_mtx);
761 1.33 tls cv_signal(&krp->krp_cv);
762 1.36 tls TAILQ_INSERT_TAIL(&krp->fcrp->crp_ret_mkq, krp, krp_next);
763 1.38 rmind selnotify(&krp->fcrp->sinfo, 0, 0);
764 1.33 tls mutex_spin_exit(&crypto_mtx);
765 1.42 christos return 0;
766 1.1 jonathan }
767 1.1 jonathan
768 1.1 jonathan static int
769 1.1 jonathan cryptodev_key(struct crypt_kop *kop)
770 1.1 jonathan {
771 1.1 jonathan struct cryptkop *krp = NULL;
772 1.1 jonathan int error = EINVAL;
773 1.1 jonathan int in, out, size, i;
774 1.1 jonathan
775 1.42 christos if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM)
776 1.42 christos return EFBIG;
777 1.1 jonathan
778 1.1 jonathan in = kop->crk_iparams;
779 1.1 jonathan out = kop->crk_oparams;
780 1.1 jonathan switch (kop->crk_op) {
781 1.1 jonathan case CRK_MOD_EXP:
782 1.1 jonathan if (in == 3 && out == 1)
783 1.1 jonathan break;
784 1.42 christos return EINVAL;
785 1.1 jonathan case CRK_MOD_EXP_CRT:
786 1.1 jonathan if (in == 6 && out == 1)
787 1.1 jonathan break;
788 1.42 christos return EINVAL;
789 1.1 jonathan case CRK_DSA_SIGN:
790 1.1 jonathan if (in == 5 && out == 2)
791 1.1 jonathan break;
792 1.42 christos return EINVAL;
793 1.1 jonathan case CRK_DSA_VERIFY:
794 1.1 jonathan if (in == 7 && out == 0)
795 1.1 jonathan break;
796 1.42 christos return EINVAL;
797 1.1 jonathan case CRK_DH_COMPUTE_KEY:
798 1.1 jonathan if (in == 3 && out == 1)
799 1.1 jonathan break;
800 1.42 christos return EINVAL;
801 1.27 tls case CRK_MOD_ADD:
802 1.27 tls if (in == 3 && out == 1)
803 1.27 tls break;
804 1.42 christos return EINVAL;
805 1.27 tls case CRK_MOD_ADDINV:
806 1.27 tls if (in == 2 && out == 1)
807 1.27 tls break;
808 1.42 christos return EINVAL;
809 1.27 tls case CRK_MOD_SUB:
810 1.27 tls if (in == 3 && out == 1)
811 1.27 tls break;
812 1.42 christos return EINVAL;
813 1.27 tls case CRK_MOD_MULT:
814 1.27 tls if (in == 3 && out == 1)
815 1.27 tls break;
816 1.42 christos return EINVAL;
817 1.27 tls case CRK_MOD_MULTINV:
818 1.27 tls if (in == 2 && out == 1)
819 1.27 tls break;
820 1.42 christos return EINVAL;
821 1.27 tls case CRK_MOD:
822 1.27 tls if (in == 2 && out == 1)
823 1.27 tls break;
824 1.42 christos return EINVAL;
825 1.1 jonathan default:
826 1.42 christos return EINVAL;
827 1.1 jonathan }
828 1.1 jonathan
829 1.33 tls krp = pool_get(&cryptkop_pool, PR_WAITOK);
830 1.42 christos (void)memset(krp, 0, sizeof *krp);
831 1.33 tls cv_init(&krp->krp_cv, "crykdev");
832 1.1 jonathan krp->krp_op = kop->crk_op;
833 1.1 jonathan krp->krp_status = kop->crk_status;
834 1.1 jonathan krp->krp_iparams = kop->crk_iparams;
835 1.1 jonathan krp->krp_oparams = kop->crk_oparams;
836 1.1 jonathan krp->krp_status = 0;
837 1.1 jonathan krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
838 1.1 jonathan
839 1.1 jonathan for (i = 0; i < CRK_MAXPARAM; i++)
840 1.1 jonathan krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
841 1.1 jonathan for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
842 1.1 jonathan size = (krp->krp_param[i].crp_nbits + 7) / 8;
843 1.1 jonathan if (size == 0)
844 1.1 jonathan continue;
845 1.36 tls krp->krp_param[i].crp_p = kmem_alloc(size, KM_SLEEP);
846 1.1 jonathan if (i >= krp->krp_iparams)
847 1.1 jonathan continue;
848 1.42 christos error = copyin(kop->crk_param[i].crp_p,
849 1.42 christos krp->krp_param[i].crp_p, size);
850 1.1 jonathan if (error)
851 1.1 jonathan goto fail;
852 1.1 jonathan }
853 1.1 jonathan
854 1.1 jonathan error = crypto_kdispatch(krp);
855 1.33 tls if (error != 0) {
856 1.1 jonathan goto fail;
857 1.33 tls }
858 1.33 tls
859 1.33 tls mutex_spin_enter(&crypto_mtx);
860 1.33 tls while (!(krp->krp_flags & CRYPTO_F_DONE)) {
861 1.33 tls cv_wait(&krp->krp_cv, &crypto_mtx); /* XXX cv_wait_sig? */
862 1.33 tls }
863 1.33 tls if (krp->krp_flags & CRYPTO_F_ONRETQ) {
864 1.33 tls DPRINTF(("cryptodev_key: DONE early, not via cryptoret.\n"));
865 1.33 tls (void)crypto_ret_kq_remove(krp);
866 1.33 tls }
867 1.33 tls mutex_spin_exit(&crypto_mtx);
868 1.1 jonathan
869 1.1 jonathan if (krp->krp_status != 0) {
870 1.42 christos DPRINTF(("cryptodev_key: krp->krp_status 0x%08x\n",
871 1.42 christos krp->krp_status));
872 1.1 jonathan error = krp->krp_status;
873 1.1 jonathan goto fail;
874 1.1 jonathan }
875 1.1 jonathan
876 1.42 christos for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams;
877 1.42 christos i++) {
878 1.1 jonathan size = (krp->krp_param[i].crp_nbits + 7) / 8;
879 1.1 jonathan if (size == 0)
880 1.1 jonathan continue;
881 1.42 christos error = copyout(krp->krp_param[i].crp_p,
882 1.42 christos kop->crk_param[i].crp_p, size);
883 1.34 tls if (error) {
884 1.42 christos DPRINTF(("cryptodev_key: copyout oparam %d failed, "
885 1.42 christos "error=%d\n", i-krp->krp_iparams, error));
886 1.1 jonathan goto fail;
887 1.34 tls }
888 1.1 jonathan }
889 1.1 jonathan
890 1.1 jonathan fail:
891 1.43 christos kop->crk_status = krp->krp_status;
892 1.43 christos for (i = 0; i < CRK_MAXPARAM; i++) {
893 1.43 christos struct crparam *kp = &(krp->krp_param[i]);
894 1.43 christos if (krp->krp_param[i].crp_p) {
895 1.43 christos size = (kp->crp_nbits + 7) / 8;
896 1.43 christos KASSERT(size > 0);
897 1.43 christos (void)memset(kp->crp_p, 0, size);
898 1.43 christos kmem_free(kp->crp_p, size);
899 1.1 jonathan }
900 1.1 jonathan }
901 1.45 darran cv_destroy(&krp->krp_cv);
902 1.43 christos pool_put(&cryptkop_pool, krp);
903 1.34 tls DPRINTF(("cryptodev_key: error=0x%08x\n", error));
904 1.42 christos return error;
905 1.1 jonathan }
906 1.1 jonathan
907 1.1 jonathan /* ARGSUSED */
908 1.1 jonathan static int
909 1.36 tls cryptof_close(struct file *fp)
910 1.1 jonathan {
911 1.35 ad struct fcrypt *fcr = fp->f_data;
912 1.1 jonathan struct csession *cse;
913 1.1 jonathan
914 1.33 tls mutex_spin_enter(&crypto_mtx);
915 1.1 jonathan while ((cse = TAILQ_FIRST(&fcr->csessions))) {
916 1.1 jonathan TAILQ_REMOVE(&fcr->csessions, cse, next);
917 1.1 jonathan (void)csefree(cse);
918 1.1 jonathan }
919 1.36 tls seldestroy(&fcr->sinfo);
920 1.1 jonathan fp->f_data = NULL;
921 1.33 tls mutex_spin_exit(&crypto_mtx);
922 1.1 jonathan
923 1.38 rmind pool_put(&fcrpl, fcr);
924 1.1 jonathan return 0;
925 1.1 jonathan }
926 1.1 jonathan
927 1.46 darran /* needed for compatibility module */
928 1.46 darran struct csession *cryptodev_csefind(struct fcrypt *fcr, u_int ses)
929 1.46 darran {
930 1.46 darran return csefind(fcr, ses);
931 1.46 darran }
932 1.46 darran
933 1.33 tls /* csefind: call with crypto_mtx held. */
934 1.1 jonathan static struct csession *
935 1.1 jonathan csefind(struct fcrypt *fcr, u_int ses)
936 1.1 jonathan {
937 1.45 darran struct csession *cse, *cnext, *ret = NULL;
938 1.1 jonathan
939 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
940 1.45 darran TAILQ_FOREACH_SAFE(cse, &fcr->csessions, next, cnext)
941 1.1 jonathan if (cse->ses == ses)
942 1.33 tls ret = cse;
943 1.36 tls
944 1.42 christos return ret;
945 1.1 jonathan }
946 1.1 jonathan
947 1.33 tls /* csedelete: call with crypto_mtx held. */
948 1.1 jonathan static int
949 1.1 jonathan csedelete(struct fcrypt *fcr, struct csession *cse_del)
950 1.1 jonathan {
951 1.45 darran struct csession *cse, *cnext;
952 1.33 tls int ret = 0;
953 1.1 jonathan
954 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
955 1.45 darran TAILQ_FOREACH_SAFE(cse, &fcr->csessions, next, cnext) {
956 1.1 jonathan if (cse == cse_del) {
957 1.1 jonathan TAILQ_REMOVE(&fcr->csessions, cse, next);
958 1.33 tls ret = 1;
959 1.1 jonathan }
960 1.1 jonathan }
961 1.42 christos return ret;
962 1.1 jonathan }
963 1.1 jonathan
964 1.33 tls /* cseadd: call with crypto_mtx held. */
965 1.1 jonathan static struct csession *
966 1.1 jonathan cseadd(struct fcrypt *fcr, struct csession *cse)
967 1.1 jonathan {
968 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
969 1.33 tls /* don't let session ID wrap! */
970 1.33 tls if (fcr->sesn + 1 == 0) return NULL;
971 1.1 jonathan TAILQ_INSERT_TAIL(&fcr->csessions, cse, next);
972 1.1 jonathan cse->ses = fcr->sesn++;
973 1.42 christos return cse;
974 1.1 jonathan }
975 1.1 jonathan
976 1.33 tls /* csecreate: call with crypto_mtx held. */
977 1.1 jonathan static struct csession *
978 1.26 christos csecreate(struct fcrypt *fcr, u_int64_t sid, void *key, u_int64_t keylen,
979 1.26 christos void *mackey, u_int64_t mackeylen, u_int32_t cipher, u_int32_t mac,
980 1.46 darran u_int32_t comp_alg, struct enc_xform *txform, struct auth_hash *thash,
981 1.46 darran struct comp_algo *tcomp)
982 1.1 jonathan {
983 1.1 jonathan struct csession *cse;
984 1.1 jonathan
985 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
986 1.29 tls cse = pool_get(&csepl, PR_NOWAIT);
987 1.1 jonathan if (cse == NULL)
988 1.1 jonathan return NULL;
989 1.1 jonathan cse->key = key;
990 1.1 jonathan cse->keylen = keylen/8;
991 1.1 jonathan cse->mackey = mackey;
992 1.1 jonathan cse->mackeylen = mackeylen/8;
993 1.1 jonathan cse->sid = sid;
994 1.1 jonathan cse->cipher = cipher;
995 1.1 jonathan cse->mac = mac;
996 1.46 darran cse->comp_alg = comp_alg;
997 1.1 jonathan cse->txform = txform;
998 1.1 jonathan cse->thash = thash;
999 1.46 darran cse->tcomp = tcomp;
1000 1.34 tls cse->error = 0;
1001 1.28 tls if (cseadd(fcr, cse))
1002 1.42 christos return cse;
1003 1.28 tls else {
1004 1.33 tls pool_put(&csepl, cse);
1005 1.28 tls return NULL;
1006 1.28 tls }
1007 1.1 jonathan }
1008 1.1 jonathan
1009 1.33 tls /* csefree: call with crypto_mtx held. */
1010 1.1 jonathan static int
1011 1.1 jonathan csefree(struct csession *cse)
1012 1.1 jonathan {
1013 1.1 jonathan int error;
1014 1.1 jonathan
1015 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
1016 1.1 jonathan error = crypto_freesession(cse->sid);
1017 1.1 jonathan if (cse->key)
1018 1.36 tls free(cse->key, M_XDATA);
1019 1.1 jonathan if (cse->mackey)
1020 1.36 tls free(cse->mackey, M_XDATA);
1021 1.29 tls pool_put(&csepl, cse);
1022 1.42 christos return error;
1023 1.1 jonathan }
1024 1.1 jonathan
1025 1.1 jonathan static int
1026 1.25 christos cryptoopen(dev_t dev, int flag, int mode,
1027 1.25 christos struct lwp *l)
1028 1.1 jonathan {
1029 1.35 ad file_t *fp;
1030 1.29 tls struct fcrypt *fcr;
1031 1.29 tls int fd, error;
1032 1.29 tls
1033 1.1 jonathan if (crypto_usercrypto == 0)
1034 1.42 christos return ENXIO;
1035 1.29 tls
1036 1.35 ad if ((error = fd_allocfile(&fp, &fd)) != 0)
1037 1.29 tls return error;
1038 1.29 tls
1039 1.29 tls fcr = pool_get(&fcrpl, PR_WAITOK);
1040 1.48 christos getnanotime(&fcr->btime);
1041 1.48 christos fcr->atime = fcr->mtime = fcr->btime;
1042 1.33 tls mutex_spin_enter(&crypto_mtx);
1043 1.29 tls TAILQ_INIT(&fcr->csessions);
1044 1.36 tls TAILQ_INIT(&fcr->crp_ret_mq);
1045 1.36 tls TAILQ_INIT(&fcr->crp_ret_mkq);
1046 1.36 tls selinit(&fcr->sinfo);
1047 1.29 tls /*
1048 1.29 tls * Don't ever return session 0, to allow detection of
1049 1.29 tls * failed creation attempts with multi-create ioctl.
1050 1.29 tls */
1051 1.29 tls fcr->sesn = 1;
1052 1.36 tls fcr->requestid = 1;
1053 1.33 tls mutex_spin_exit(&crypto_mtx);
1054 1.35 ad return fd_clone(fp, fd, flag, &cryptofops, fcr);
1055 1.1 jonathan }
1056 1.1 jonathan
1057 1.1 jonathan static int
1058 1.25 christos cryptoread(dev_t dev, struct uio *uio, int ioflag)
1059 1.1 jonathan {
1060 1.42 christos return EIO;
1061 1.1 jonathan }
1062 1.1 jonathan
1063 1.1 jonathan static int
1064 1.25 christos cryptowrite(dev_t dev, struct uio *uio, int ioflag)
1065 1.1 jonathan {
1066 1.42 christos return EIO;
1067 1.1 jonathan }
1068 1.1 jonathan
1069 1.1 jonathan int
1070 1.25 christos cryptoselect(dev_t dev, int rw, struct lwp *l)
1071 1.1 jonathan {
1072 1.42 christos return 0;
1073 1.1 jonathan }
1074 1.1 jonathan
1075 1.1 jonathan /*static*/
1076 1.1 jonathan struct cdevsw crypto_cdevsw = {
1077 1.1 jonathan /* open */ cryptoopen,
1078 1.29 tls /* close */ noclose,
1079 1.1 jonathan /* read */ cryptoread,
1080 1.1 jonathan /* write */ cryptowrite,
1081 1.29 tls /* ioctl */ noioctl,
1082 1.1 jonathan /* ttstop?*/ nostop,
1083 1.1 jonathan /* ??*/ notty,
1084 1.1 jonathan /* poll */ cryptoselect /*nopoll*/,
1085 1.1 jonathan /* mmap */ nommap,
1086 1.1 jonathan /* kqfilter */ nokqfilter,
1087 1.23 christos /* type */ D_OTHER,
1088 1.1 jonathan };
1089 1.1 jonathan
1090 1.46 darran int
1091 1.36 tls cryptodev_mop(struct fcrypt *fcr,
1092 1.36 tls struct crypt_n_op * cnop,
1093 1.36 tls int count, struct lwp *l)
1094 1.36 tls {
1095 1.36 tls struct cryptop *crp = NULL;
1096 1.46 darran struct cryptodesc *crde = NULL, *crda = NULL, *crdc = NULL;
1097 1.36 tls int req, error=0;
1098 1.36 tls struct csession *cse;
1099 1.46 darran int flags=0;
1100 1.46 darran int iov_len;
1101 1.36 tls
1102 1.36 tls for (req = 0; req < count; req++) {
1103 1.36 tls mutex_spin_enter(&crypto_mtx);
1104 1.36 tls cse = csefind(fcr, cnop[req].ses);
1105 1.36 tls if (cse == NULL) {
1106 1.36 tls DPRINTF(("csefind failed\n"));
1107 1.36 tls cnop[req].status = EINVAL;
1108 1.36 tls mutex_spin_exit(&crypto_mtx);
1109 1.36 tls continue;
1110 1.36 tls }
1111 1.36 tls mutex_spin_exit(&crypto_mtx);
1112 1.36 tls
1113 1.36 tls if (cnop[req].len > 256*1024-4) {
1114 1.36 tls DPRINTF(("length failed\n"));
1115 1.36 tls cnop[req].status = EINVAL;
1116 1.36 tls continue;
1117 1.36 tls }
1118 1.36 tls if (cse->txform) {
1119 1.36 tls if (cnop[req].len == 0 ||
1120 1.36 tls (cnop[req].len % cse->txform->blocksize) != 0) {
1121 1.36 tls cnop[req].status = EINVAL;
1122 1.36 tls continue;
1123 1.36 tls }
1124 1.36 tls }
1125 1.36 tls
1126 1.42 christos crp = crypto_getreq((cse->txform != NULL) +
1127 1.46 darran (cse->thash != NULL) +
1128 1.46 darran (cse->tcomp != NULL));
1129 1.36 tls if (crp == NULL) {
1130 1.36 tls cnop[req].status = ENOMEM;
1131 1.36 tls goto bail;
1132 1.36 tls }
1133 1.36 tls
1134 1.46 darran iov_len = cnop[req].len;
1135 1.46 darran /* got a compression/decompression max size? */
1136 1.46 darran if ((cse->tcomp) && cnop[req].dst_len) {
1137 1.46 darran if (iov_len < cnop[req].dst_len) {
1138 1.46 darran /* Need larger iov to deal with decompress */
1139 1.46 darran iov_len = cnop[req].dst_len;
1140 1.46 darran }
1141 1.46 darran DPRINTF(("cryptodev_mop: iov_len -> %d for decompress\n", iov_len));
1142 1.46 darran }
1143 1.46 darran
1144 1.42 christos (void)memset(&crp->uio, 0, sizeof(crp->uio));
1145 1.36 tls crp->uio.uio_iovcnt = 1;
1146 1.36 tls crp->uio.uio_resid = 0;
1147 1.36 tls crp->uio.uio_rw = UIO_WRITE;
1148 1.36 tls crp->uio.uio_iov = crp->iovec;
1149 1.36 tls UIO_SETUP_SYSSPACE(&crp->uio);
1150 1.36 tls memset(&crp->iovec, 0, sizeof(crp->iovec));
1151 1.46 darran crp->uio.uio_iov[0].iov_len = iov_len;
1152 1.46 darran DPRINTF(("cryptodev_mop: kmem_alloc(%d) for iov \n", iov_len));
1153 1.46 darran crp->uio.uio_iov[0].iov_base = kmem_alloc(iov_len, KM_SLEEP);
1154 1.36 tls crp->uio.uio_resid = crp->uio.uio_iov[0].iov_len;
1155 1.36 tls
1156 1.46 darran if (cse->tcomp) {
1157 1.46 darran crdc = crp->crp_desc;
1158 1.46 darran }
1159 1.46 darran
1160 1.36 tls if (cse->thash) {
1161 1.46 darran crda = crdc ? crdc->crd_next : crp->crp_desc;
1162 1.44 christos if (cse->txform && crda)
1163 1.36 tls crde = crda->crd_next;
1164 1.36 tls } else {
1165 1.46 darran if (cse->txform) {
1166 1.46 darran crde = crdc ? crdc->crd_next : crp->crp_desc;
1167 1.46 darran } else if (!cse->tcomp) {
1168 1.46 darran error = EINVAL;
1169 1.46 darran goto bail;
1170 1.36 tls }
1171 1.36 tls }
1172 1.36 tls
1173 1.36 tls if ((copyin(cnop[req].src,
1174 1.36 tls crp->uio.uio_iov[0].iov_base, cnop[req].len))) {
1175 1.36 tls cnop[req].status = EINVAL;
1176 1.36 tls goto bail;
1177 1.36 tls }
1178 1.46 darran
1179 1.46 darran if (crdc) {
1180 1.46 darran switch (cnop[req].op) {
1181 1.46 darran case COP_COMP:
1182 1.46 darran crdc->crd_flags |= CRD_F_COMP;
1183 1.46 darran break;
1184 1.46 darran case COP_DECOMP:
1185 1.46 darran crdc->crd_flags &= ~CRD_F_COMP;
1186 1.46 darran break;
1187 1.46 darran default:
1188 1.46 darran break;
1189 1.46 darran }
1190 1.46 darran /* more data to follow? */
1191 1.46 darran if (cnop[req].flags & COP_F_MORE) {
1192 1.46 darran flags |= CRYPTO_F_MORE;
1193 1.46 darran }
1194 1.46 darran crdc->crd_len = cnop[req].len;
1195 1.46 darran crdc->crd_inject = 0;
1196 1.46 darran
1197 1.46 darran crdc->crd_alg = cse->comp_alg;
1198 1.46 darran crdc->crd_key = NULL;
1199 1.46 darran crdc->crd_klen = 0;
1200 1.46 darran DPRINTF(("cryptodev_mop[%d]: crdc setup for comp_alg %d"
1201 1.46 darran " len %d.\n",
1202 1.46 darran (uint32_t)cse->sid, crdc->crd_alg,
1203 1.46 darran crdc->crd_len));
1204 1.46 darran }
1205 1.36 tls
1206 1.36 tls if (crda) {
1207 1.36 tls crda->crd_skip = 0;
1208 1.36 tls crda->crd_len = cnop[req].len;
1209 1.36 tls crda->crd_inject = 0; /* ??? */
1210 1.36 tls
1211 1.36 tls crda->crd_alg = cse->mac;
1212 1.36 tls crda->crd_key = cse->mackey;
1213 1.36 tls crda->crd_klen = cse->mackeylen * 8;
1214 1.36 tls }
1215 1.36 tls
1216 1.36 tls if (crde) {
1217 1.36 tls if (cnop[req].op == COP_ENCRYPT)
1218 1.36 tls crde->crd_flags |= CRD_F_ENCRYPT;
1219 1.36 tls else
1220 1.36 tls crde->crd_flags &= ~CRD_F_ENCRYPT;
1221 1.36 tls crde->crd_len = cnop[req].len;
1222 1.36 tls crde->crd_inject = 0;
1223 1.36 tls
1224 1.36 tls crde->crd_alg = cse->cipher;
1225 1.36 tls #ifdef notyet /* XXX must notify h/w driver new key, drain */
1226 1.36 tls if(cnop[req].key && cnop[req].keylen) {
1227 1.36 tls crde->crd_key = malloc(cnop[req].keylen,
1228 1.36 tls M_XDATA, M_WAITOK);
1229 1.36 tls if((error = copyin(cnop[req].key,
1230 1.36 tls crde->crd_key, cnop[req].keylen))) {
1231 1.36 tls cnop[req].status = EINVAL;
1232 1.36 tls goto bail;
1233 1.36 tls }
1234 1.36 tls crde->crd_klen = cnop[req].keylen * 8;
1235 1.36 tls } else { ... }
1236 1.36 tls #endif
1237 1.36 tls crde->crd_key = cse->key;
1238 1.36 tls crde->crd_klen = cse->keylen * 8;
1239 1.36 tls }
1240 1.36 tls
1241 1.36 tls crp->crp_ilen = cnop[req].len;
1242 1.42 christos crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM |
1243 1.46 darran (cnop[req].flags & COP_F_BATCH) | flags;
1244 1.36 tls crp->crp_buf = (void *)&crp->uio;
1245 1.36 tls crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_mcb;
1246 1.36 tls crp->crp_sid = cse->sid;
1247 1.36 tls crp->crp_opaque = (void *)cse;
1248 1.36 tls crp->fcrp = fcr;
1249 1.36 tls crp->dst = cnop[req].dst;
1250 1.46 darran crp->len = cnop[req].len; /* input len, iov may be larger */
1251 1.36 tls crp->mac = cnop[req].mac;
1252 1.46 darran DPRINTF(("cryptodev_mop: iov_base %p dst %p len %d mac %p\n",
1253 1.46 darran crp->uio.uio_iov[0].iov_base, crp->dst, crp->len,
1254 1.46 darran crp->mac));
1255 1.36 tls
1256 1.36 tls if (cnop[req].iv) {
1257 1.36 tls if (crde == NULL) {
1258 1.36 tls cnop[req].status = EINVAL;
1259 1.36 tls goto bail;
1260 1.36 tls }
1261 1.36 tls if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
1262 1.36 tls cnop[req].status = EINVAL;
1263 1.36 tls goto bail;
1264 1.36 tls }
1265 1.36 tls if ((error = copyin(cnop[req].iv, crp->tmp_iv,
1266 1.36 tls cse->txform->blocksize))) {
1267 1.36 tls cnop[req].status = EINVAL;
1268 1.36 tls goto bail;
1269 1.36 tls }
1270 1.42 christos (void)memcpy(crde->crd_iv, crp->tmp_iv,
1271 1.42 christos cse->txform->blocksize);
1272 1.36 tls crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
1273 1.36 tls crde->crd_skip = 0;
1274 1.36 tls } else if (crde) {
1275 1.36 tls if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
1276 1.36 tls crde->crd_skip = 0;
1277 1.36 tls } else {
1278 1.36 tls crde->crd_flags |= CRD_F_IV_PRESENT;
1279 1.36 tls crde->crd_skip = cse->txform->blocksize;
1280 1.36 tls crde->crd_len -= cse->txform->blocksize;
1281 1.36 tls }
1282 1.36 tls }
1283 1.36 tls
1284 1.36 tls if (cnop[req].mac) {
1285 1.36 tls if (crda == NULL) {
1286 1.36 tls cnop[req].status = EINVAL;
1287 1.36 tls goto bail;
1288 1.36 tls }
1289 1.36 tls crp->crp_mac=cse->tmp_mac;
1290 1.36 tls }
1291 1.36 tls cnop[req].reqid = atomic_inc_32_nv(&(fcr->requestid));
1292 1.36 tls crp->crp_reqid = cnop[req].reqid;
1293 1.36 tls crp->crp_usropaque = cnop[req].opaque;
1294 1.36 tls #ifdef notyet
1295 1.36 tls eagain:
1296 1.36 tls #endif
1297 1.36 tls cnop[req].status = crypto_dispatch(crp);
1298 1.36 tls mutex_spin_enter(&crypto_mtx); /* XXX why mutex? */
1299 1.36 tls
1300 1.36 tls switch (cnop[req].status) {
1301 1.36 tls #ifdef notyet /* don't loop forever -- but EAGAIN not possible here yet */
1302 1.36 tls case EAGAIN:
1303 1.36 tls mutex_spin_exit(&crypto_mtx);
1304 1.36 tls goto eagain;
1305 1.36 tls break;
1306 1.36 tls #endif
1307 1.36 tls case 0:
1308 1.36 tls break;
1309 1.36 tls default:
1310 1.36 tls DPRINTF(("cryptodev_op: not waiting, error.\n"));
1311 1.36 tls mutex_spin_exit(&crypto_mtx);
1312 1.36 tls goto bail;
1313 1.36 tls }
1314 1.36 tls
1315 1.36 tls mutex_spin_exit(&crypto_mtx);
1316 1.36 tls bail:
1317 1.36 tls if (cnop[req].status) {
1318 1.36 tls if (crp) {
1319 1.46 darran if (crp->uio.uio_iov[0].iov_base) {
1320 1.46 darran kmem_free(crp->uio.uio_iov[0].iov_base,
1321 1.46 darran crp->uio.uio_iov[0].iov_len);
1322 1.46 darran }
1323 1.36 tls crypto_freereq(crp);
1324 1.36 tls }
1325 1.36 tls error = 0;
1326 1.36 tls }
1327 1.36 tls }
1328 1.42 christos return error;
1329 1.36 tls }
1330 1.36 tls
1331 1.36 tls static int
1332 1.36 tls cryptodev_mkey(struct fcrypt *fcr, struct crypt_n_kop *kop, int count)
1333 1.36 tls {
1334 1.36 tls struct cryptkop *krp = NULL;
1335 1.36 tls int error = EINVAL;
1336 1.36 tls int in, out, size, i, req;
1337 1.36 tls
1338 1.36 tls for (req = 0; req < count; req++) {
1339 1.42 christos if (kop[req].crk_iparams + kop[req].crk_oparams > CRK_MAXPARAM)
1340 1.42 christos return EFBIG;
1341 1.36 tls
1342 1.36 tls in = kop[req].crk_iparams;
1343 1.36 tls out = kop[req].crk_oparams;
1344 1.36 tls switch (kop[req].crk_op) {
1345 1.36 tls case CRK_MOD_EXP:
1346 1.36 tls if (in == 3 && out == 1)
1347 1.36 tls break;
1348 1.36 tls kop[req].crk_status = EINVAL;
1349 1.36 tls continue;
1350 1.36 tls case CRK_MOD_EXP_CRT:
1351 1.36 tls if (in == 6 && out == 1)
1352 1.36 tls break;
1353 1.36 tls kop[req].crk_status = EINVAL;
1354 1.36 tls continue;
1355 1.36 tls case CRK_DSA_SIGN:
1356 1.36 tls if (in == 5 && out == 2)
1357 1.36 tls break;
1358 1.36 tls kop[req].crk_status = EINVAL;
1359 1.36 tls continue;
1360 1.36 tls case CRK_DSA_VERIFY:
1361 1.36 tls if (in == 7 && out == 0)
1362 1.36 tls break;
1363 1.36 tls kop[req].crk_status = EINVAL;
1364 1.36 tls continue;
1365 1.36 tls case CRK_DH_COMPUTE_KEY:
1366 1.36 tls if (in == 3 && out == 1)
1367 1.36 tls break;
1368 1.36 tls kop[req].crk_status = EINVAL;
1369 1.36 tls continue;
1370 1.36 tls case CRK_MOD_ADD:
1371 1.36 tls if (in == 3 && out == 1)
1372 1.36 tls break;
1373 1.36 tls kop[req].crk_status = EINVAL;
1374 1.36 tls continue;
1375 1.36 tls case CRK_MOD_ADDINV:
1376 1.36 tls if (in == 2 && out == 1)
1377 1.36 tls break;
1378 1.36 tls kop[req].crk_status = EINVAL;
1379 1.36 tls continue;
1380 1.36 tls case CRK_MOD_SUB:
1381 1.36 tls if (in == 3 && out == 1)
1382 1.36 tls break;
1383 1.36 tls kop[req].crk_status = EINVAL;
1384 1.36 tls continue;
1385 1.36 tls case CRK_MOD_MULT:
1386 1.36 tls if (in == 3 && out == 1)
1387 1.36 tls break;
1388 1.36 tls kop[req].crk_status = EINVAL;
1389 1.36 tls continue;
1390 1.36 tls case CRK_MOD_MULTINV:
1391 1.36 tls if (in == 2 && out == 1)
1392 1.36 tls break;
1393 1.36 tls kop[req].crk_status = EINVAL;
1394 1.36 tls continue;
1395 1.36 tls case CRK_MOD:
1396 1.36 tls if (in == 2 && out == 1)
1397 1.36 tls break;
1398 1.36 tls kop[req].crk_status = EINVAL;
1399 1.36 tls continue;
1400 1.36 tls default:
1401 1.36 tls kop[req].crk_status = EINVAL;
1402 1.36 tls continue;
1403 1.36 tls }
1404 1.36 tls
1405 1.36 tls krp = pool_get(&cryptkop_pool, PR_WAITOK);
1406 1.42 christos (void)memset(krp, 0, sizeof *krp);
1407 1.36 tls cv_init(&krp->krp_cv, "crykdev");
1408 1.36 tls krp->krp_op = kop[req].crk_op;
1409 1.36 tls krp->krp_status = kop[req].crk_status;
1410 1.36 tls krp->krp_iparams = kop[req].crk_iparams;
1411 1.36 tls krp->krp_oparams = kop[req].crk_oparams;
1412 1.36 tls krp->krp_status = 0;
1413 1.36 tls krp->krp_callback =
1414 1.36 tls (int (*) (struct cryptkop *)) cryptodevkey_mcb;
1415 1.42 christos (void)memcpy(krp->crk_param, kop[req].crk_param,
1416 1.42 christos sizeof(kop[req].crk_param));
1417 1.36 tls
1418 1.36 tls krp->krp_flags = CRYPTO_F_CBIMM;
1419 1.36 tls
1420 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++)
1421 1.36 tls krp->krp_param[i].crp_nbits =
1422 1.36 tls kop[req].crk_param[i].crp_nbits;
1423 1.36 tls for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
1424 1.36 tls size = (krp->krp_param[i].crp_nbits + 7) / 8;
1425 1.36 tls if (size == 0)
1426 1.36 tls continue;
1427 1.36 tls krp->krp_param[i].crp_p =
1428 1.36 tls kmem_alloc(size, KM_SLEEP);
1429 1.36 tls if (i >= krp->krp_iparams)
1430 1.36 tls continue;
1431 1.42 christos kop[req].crk_status =
1432 1.42 christos copyin(kop[req].crk_param[i].crp_p,
1433 1.42 christos krp->krp_param[i].crp_p, size);
1434 1.36 tls if (kop[req].crk_status)
1435 1.36 tls goto fail;
1436 1.36 tls }
1437 1.36 tls krp->fcrp = fcr;
1438 1.36 tls
1439 1.36 tls kop[req].crk_reqid = atomic_inc_32_nv(&(fcr->requestid));
1440 1.36 tls krp->krp_reqid = kop[req].crk_reqid;
1441 1.36 tls krp->krp_usropaque = kop[req].crk_opaque;
1442 1.36 tls
1443 1.36 tls kop[req].crk_status = crypto_kdispatch(krp);
1444 1.36 tls if (kop[req].crk_status != 0) {
1445 1.36 tls goto fail;
1446 1.36 tls }
1447 1.36 tls
1448 1.36 tls fail:
1449 1.36 tls if(kop[req].crk_status) {
1450 1.36 tls if (krp) {
1451 1.36 tls kop[req].crk_status = krp->krp_status;
1452 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++) {
1453 1.36 tls struct crparam *kp =
1454 1.36 tls &(krp->krp_param[i]);
1455 1.36 tls if (kp->crp_p) {
1456 1.36 tls size = (kp->crp_nbits + 7) / 8;
1457 1.36 tls KASSERT(size > 0);
1458 1.36 tls memset(kp->crp_p, 0, size);
1459 1.36 tls kmem_free(kp->crp_p, size);
1460 1.36 tls }
1461 1.36 tls }
1462 1.45 darran cv_destroy(&krp->krp_cv);
1463 1.36 tls pool_put(&cryptkop_pool, krp);
1464 1.36 tls }
1465 1.36 tls }
1466 1.36 tls error = 0;
1467 1.36 tls }
1468 1.36 tls DPRINTF(("cryptodev_key: error=0x%08x\n", error));
1469 1.42 christos return error;
1470 1.36 tls }
1471 1.36 tls
1472 1.46 darran int
1473 1.45 darran cryptodev_session(struct fcrypt *fcr, struct session_op *sop)
1474 1.45 darran {
1475 1.36 tls struct cryptoini cria, crie;
1476 1.46 darran struct cryptoini cric; /* compressor */
1477 1.46 darran struct cryptoini *crihead = NULL;
1478 1.36 tls struct enc_xform *txform = NULL;
1479 1.36 tls struct auth_hash *thash = NULL;
1480 1.46 darran struct comp_algo *tcomp = NULL;
1481 1.36 tls struct csession *cse;
1482 1.36 tls u_int64_t sid;
1483 1.36 tls int error = 0;
1484 1.36 tls
1485 1.46 darran DPRINTF(("cryptodev_session() cipher=%d, mac=%d\n", sop->cipher, sop->mac));
1486 1.46 darran
1487 1.36 tls /* XXX there must be a way to not embed the list of xforms here */
1488 1.36 tls switch (sop->cipher) {
1489 1.36 tls case 0:
1490 1.36 tls break;
1491 1.36 tls case CRYPTO_DES_CBC:
1492 1.36 tls txform = &enc_xform_des;
1493 1.36 tls break;
1494 1.36 tls case CRYPTO_3DES_CBC:
1495 1.36 tls txform = &enc_xform_3des;
1496 1.36 tls break;
1497 1.36 tls case CRYPTO_BLF_CBC:
1498 1.36 tls txform = &enc_xform_blf;
1499 1.36 tls break;
1500 1.36 tls case CRYPTO_CAST_CBC:
1501 1.36 tls txform = &enc_xform_cast5;
1502 1.52 hubertf break;
1503 1.36 tls case CRYPTO_SKIPJACK_CBC:
1504 1.36 tls txform = &enc_xform_skipjack;
1505 1.36 tls break;
1506 1.36 tls case CRYPTO_AES_CBC:
1507 1.36 tls txform = &enc_xform_rijndael128;
1508 1.36 tls break;
1509 1.36 tls case CRYPTO_NULL_CBC:
1510 1.36 tls txform = &enc_xform_null;
1511 1.36 tls break;
1512 1.36 tls case CRYPTO_ARC4:
1513 1.36 tls txform = &enc_xform_arc4;
1514 1.36 tls break;
1515 1.36 tls default:
1516 1.36 tls DPRINTF(("Invalid cipher %d\n", sop->cipher));
1517 1.36 tls return EINVAL;
1518 1.36 tls }
1519 1.36 tls
1520 1.46 darran switch (sop->comp_alg) {
1521 1.46 darran case 0:
1522 1.46 darran break;
1523 1.46 darran case CRYPTO_DEFLATE_COMP:
1524 1.46 darran tcomp = &comp_algo_deflate;
1525 1.46 darran break;
1526 1.46 darran case CRYPTO_GZIP_COMP:
1527 1.46 darran tcomp = &comp_algo_gzip;
1528 1.46 darran DPRINTF(("cryptodev_session() tcomp for GZIP\n"));
1529 1.46 darran break;
1530 1.46 darran default:
1531 1.46 darran DPRINTF(("Invalid compression alg %d\n", sop->comp_alg));
1532 1.46 darran return EINVAL;
1533 1.46 darran }
1534 1.46 darran
1535 1.36 tls switch (sop->mac) {
1536 1.36 tls case 0:
1537 1.36 tls break;
1538 1.36 tls case CRYPTO_MD5_HMAC:
1539 1.36 tls thash = &auth_hash_hmac_md5;
1540 1.36 tls break;
1541 1.36 tls case CRYPTO_SHA1_HMAC:
1542 1.36 tls thash = &auth_hash_hmac_sha1;
1543 1.36 tls break;
1544 1.36 tls case CRYPTO_MD5_HMAC_96:
1545 1.36 tls thash = &auth_hash_hmac_md5_96;
1546 1.36 tls break;
1547 1.36 tls case CRYPTO_SHA1_HMAC_96:
1548 1.36 tls thash = &auth_hash_hmac_sha1_96;
1549 1.36 tls break;
1550 1.36 tls case CRYPTO_SHA2_HMAC:
1551 1.36 tls /* XXX switching on key length seems questionable */
1552 1.36 tls if (sop->mackeylen == auth_hash_hmac_sha2_256.keysize) {
1553 1.36 tls thash = &auth_hash_hmac_sha2_256;
1554 1.36 tls } else if (sop->mackeylen == auth_hash_hmac_sha2_384.keysize) {
1555 1.36 tls thash = &auth_hash_hmac_sha2_384;
1556 1.36 tls } else if (sop->mackeylen == auth_hash_hmac_sha2_512.keysize) {
1557 1.36 tls thash = &auth_hash_hmac_sha2_512;
1558 1.36 tls } else {
1559 1.36 tls DPRINTF(("Invalid mackeylen %d\n", sop->mackeylen));
1560 1.36 tls return EINVAL;
1561 1.36 tls }
1562 1.36 tls break;
1563 1.36 tls case CRYPTO_RIPEMD160_HMAC:
1564 1.36 tls thash = &auth_hash_hmac_ripemd_160;
1565 1.36 tls break;
1566 1.36 tls case CRYPTO_RIPEMD160_HMAC_96:
1567 1.36 tls thash = &auth_hash_hmac_ripemd_160_96;
1568 1.36 tls break;
1569 1.36 tls case CRYPTO_MD5:
1570 1.36 tls thash = &auth_hash_md5;
1571 1.36 tls break;
1572 1.36 tls case CRYPTO_SHA1:
1573 1.36 tls thash = &auth_hash_sha1;
1574 1.36 tls break;
1575 1.36 tls case CRYPTO_NULL_HMAC:
1576 1.36 tls thash = &auth_hash_null;
1577 1.36 tls break;
1578 1.36 tls default:
1579 1.36 tls DPRINTF(("Invalid mac %d\n", sop->mac));
1580 1.42 christos return EINVAL;
1581 1.36 tls }
1582 1.36 tls
1583 1.36 tls memset(&crie, 0, sizeof(crie));
1584 1.36 tls memset(&cria, 0, sizeof(cria));
1585 1.46 darran memset(&cric, 0, sizeof(cric));
1586 1.46 darran
1587 1.46 darran if (tcomp) {
1588 1.46 darran cric.cri_alg = tcomp->type;
1589 1.46 darran cric.cri_klen = 0;
1590 1.46 darran DPRINTF(("tcomp->type = %d\n", tcomp->type));
1591 1.46 darran
1592 1.46 darran crihead = &cric;
1593 1.46 darran if (thash) {
1594 1.46 darran cric.cri_next = &cria;
1595 1.46 darran } else if (txform) {
1596 1.46 darran cric.cri_next = &crie;
1597 1.46 darran }
1598 1.46 darran }
1599 1.36 tls
1600 1.36 tls if (txform) {
1601 1.36 tls crie.cri_alg = txform->type;
1602 1.36 tls crie.cri_klen = sop->keylen * 8;
1603 1.36 tls if (sop->keylen > txform->maxkey ||
1604 1.36 tls sop->keylen < txform->minkey) {
1605 1.36 tls DPRINTF(("keylen %d not in [%d,%d]\n",
1606 1.42 christos sop->keylen, txform->minkey, txform->maxkey));
1607 1.42 christos error = EINVAL;
1608 1.36 tls goto bail;
1609 1.36 tls }
1610 1.36 tls
1611 1.36 tls crie.cri_key = malloc(crie.cri_klen / 8, M_XDATA, M_WAITOK);
1612 1.42 christos if ((error = copyin(sop->key, crie.cri_key, crie.cri_klen / 8)))
1613 1.36 tls goto bail;
1614 1.46 darran if (!crihead) {
1615 1.46 darran crihead = &crie;
1616 1.46 darran }
1617 1.46 darran }
1618 1.36 tls
1619 1.36 tls if (thash) {
1620 1.36 tls cria.cri_alg = thash->type;
1621 1.36 tls cria.cri_klen = sop->mackeylen * 8;
1622 1.36 tls if (sop->mackeylen != thash->keysize) {
1623 1.36 tls DPRINTF(("mackeylen %d != keysize %d\n",
1624 1.42 christos sop->mackeylen, thash->keysize));
1625 1.36 tls error = EINVAL;
1626 1.36 tls goto bail;
1627 1.36 tls }
1628 1.36 tls if (cria.cri_klen) {
1629 1.36 tls cria.cri_key = malloc(cria.cri_klen / 8, M_XDATA,
1630 1.42 christos M_WAITOK);
1631 1.36 tls if ((error = copyin(sop->mackey, cria.cri_key,
1632 1.42 christos cria.cri_klen / 8))) {
1633 1.36 tls goto bail;
1634 1.36 tls }
1635 1.36 tls }
1636 1.46 darran if (txform)
1637 1.46 darran cria.cri_next = &crie; /* XXX forces enc then hash? */
1638 1.46 darran if (!crihead) {
1639 1.46 darran crihead = &cria;
1640 1.46 darran }
1641 1.36 tls }
1642 1.46 darran
1643 1.36 tls /* crypto_newsession requires that we hold the mutex. */
1644 1.36 tls mutex_spin_enter(&crypto_mtx);
1645 1.46 darran error = crypto_newsession(&sid, crihead, crypto_devallowsoft);
1646 1.36 tls if (!error) {
1647 1.46 darran DPRINTF(("cyrptodev_session: got session %d\n", (uint32_t)sid));
1648 1.36 tls cse = csecreate(fcr, sid, crie.cri_key, crie.cri_klen,
1649 1.46 darran cria.cri_key, cria.cri_klen, (txform ? sop->cipher : 0), sop->mac,
1650 1.46 darran (tcomp ? sop->comp_alg : 0), txform, thash, tcomp);
1651 1.36 tls if (cse != NULL) {
1652 1.36 tls sop->ses = cse->ses;
1653 1.36 tls } else {
1654 1.36 tls DPRINTF(("csecreate failed\n"));
1655 1.36 tls crypto_freesession(sid);
1656 1.36 tls error = EINVAL;
1657 1.36 tls }
1658 1.36 tls } else {
1659 1.36 tls DPRINTF(("SIOCSESSION violates kernel parameters %d\n",
1660 1.42 christos error));
1661 1.36 tls }
1662 1.36 tls mutex_spin_exit(&crypto_mtx);
1663 1.36 tls bail:
1664 1.36 tls if (error) {
1665 1.36 tls if (crie.cri_key) {
1666 1.36 tls memset(crie.cri_key, 0, crie.cri_klen / 8);
1667 1.36 tls free(crie.cri_key, M_XDATA);
1668 1.36 tls }
1669 1.36 tls if (cria.cri_key) {
1670 1.36 tls memset(cria.cri_key, 0, cria.cri_klen / 8);
1671 1.36 tls free(cria.cri_key, M_XDATA);
1672 1.36 tls }
1673 1.36 tls }
1674 1.36 tls return error;
1675 1.36 tls }
1676 1.36 tls
1677 1.46 darran int
1678 1.36 tls cryptodev_msession(struct fcrypt *fcr, struct session_n_op *sn_ops,
1679 1.36 tls int count)
1680 1.36 tls {
1681 1.36 tls int i;
1682 1.36 tls
1683 1.36 tls for (i = 0; i < count; i++, sn_ops++) {
1684 1.36 tls struct session_op s_op;
1685 1.36 tls s_op.cipher = sn_ops->cipher;
1686 1.36 tls s_op.mac = sn_ops->mac;
1687 1.36 tls s_op.keylen = sn_ops->keylen;
1688 1.36 tls s_op.key = sn_ops->key;
1689 1.36 tls s_op.mackeylen = sn_ops->mackeylen;
1690 1.36 tls s_op.mackey = sn_ops->mackey;
1691 1.36 tls
1692 1.36 tls sn_ops->status = cryptodev_session(fcr, &s_op);
1693 1.36 tls sn_ops->ses = s_op.ses;
1694 1.36 tls }
1695 1.36 tls
1696 1.36 tls return 0;
1697 1.36 tls }
1698 1.36 tls
1699 1.36 tls static int
1700 1.36 tls cryptodev_msessionfin(struct fcrypt *fcr, int count, u_int32_t *sesid)
1701 1.36 tls {
1702 1.36 tls struct csession *cse;
1703 1.36 tls int req, error = 0;
1704 1.36 tls
1705 1.36 tls mutex_spin_enter(&crypto_mtx);
1706 1.36 tls for(req = 0; req < count; req++) {
1707 1.36 tls cse = csefind(fcr, sesid[req]);
1708 1.36 tls if (cse == NULL)
1709 1.36 tls continue;
1710 1.36 tls csedelete(fcr, cse);
1711 1.36 tls error = csefree(cse);
1712 1.36 tls }
1713 1.36 tls mutex_spin_exit(&crypto_mtx);
1714 1.36 tls return 0;
1715 1.36 tls }
1716 1.36 tls
1717 1.36 tls /*
1718 1.42 christos * collect as many completed requests as are availble, or count completed
1719 1.42 christos * requests whichever is less.
1720 1.36 tls * return the number of requests.
1721 1.36 tls */
1722 1.36 tls static int
1723 1.36 tls cryptodev_getmstatus(struct fcrypt *fcr, struct crypt_result *crypt_res,
1724 1.42 christos int count)
1725 1.36 tls {
1726 1.36 tls struct cryptop *crp = NULL;
1727 1.36 tls struct cryptkop *krp = NULL;
1728 1.36 tls struct csession *cse;
1729 1.36 tls int i, size, req = 0;
1730 1.36 tls int completed=0;
1731 1.36 tls
1732 1.46 darran /* On queue so nobody else can grab them
1733 1.46 darran * and copyout can be delayed-- no locking */
1734 1.46 darran TAILQ_HEAD(, cryptop) crp_delfree_q =
1735 1.46 darran TAILQ_HEAD_INITIALIZER(crp_delfree_q);
1736 1.46 darran TAILQ_HEAD(, cryptkop) krp_delfree_q =
1737 1.46 darran TAILQ_HEAD_INITIALIZER(krp_delfree_q);
1738 1.36 tls
1739 1.36 tls /* at this point we do not know which response user is requesting for
1740 1.36 tls * (symmetric or asymmetric) so we copyout one from each i.e if the
1741 1.36 tls * count is 2 then 1 from symmetric and 1 from asymmetric queue and
1742 1.36 tls * if 3 then 2 symmetric and 1 asymmetric and so on */
1743 1.46 darran
1744 1.46 darran /* pull off a list of requests while protected from changes */
1745 1.46 darran mutex_spin_enter(&crypto_mtx);
1746 1.46 darran while (req < count) {
1747 1.36 tls crp = TAILQ_FIRST(&fcr->crp_ret_mq);
1748 1.46 darran if (crp) {
1749 1.46 darran TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
1750 1.46 darran TAILQ_INSERT_TAIL(&crp_delfree_q, crp, crp_next);
1751 1.36 tls cse = (struct csession *)crp->crp_opaque;
1752 1.46 darran
1753 1.46 darran /* see if the session is still valid */
1754 1.36 tls cse = csefind(fcr, cse->ses);
1755 1.46 darran if (cse != NULL) {
1756 1.46 darran crypt_res[req].status = 0;
1757 1.46 darran } else {
1758 1.36 tls DPRINTF(("csefind failed\n"));
1759 1.36 tls crypt_res[req].status = EINVAL;
1760 1.46 darran }
1761 1.46 darran req++;
1762 1.46 darran }
1763 1.46 darran if(req < count) {
1764 1.46 darran crypt_res[req].status = 0;
1765 1.46 darran krp = TAILQ_FIRST(&fcr->crp_ret_mkq);
1766 1.46 darran if (krp) {
1767 1.46 darran TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
1768 1.46 darran TAILQ_INSERT_TAIL(&krp_delfree_q, krp, krp_next);
1769 1.46 darran req++;
1770 1.46 darran }
1771 1.46 darran }
1772 1.46 darran }
1773 1.46 darran mutex_spin_exit(&crypto_mtx);
1774 1.46 darran
1775 1.46 darran /* now do all the work outside the mutex */
1776 1.46 darran for(req=0; req < count ;) {
1777 1.46 darran crp = TAILQ_FIRST(&crp_delfree_q);
1778 1.46 darran if (crp) {
1779 1.46 darran if (crypt_res[req].status != 0) {
1780 1.46 darran /* csefind failed during collection */
1781 1.36 tls goto bail;
1782 1.36 tls }
1783 1.46 darran cse = (struct csession *)crp->crp_opaque;
1784 1.46 darran crypt_res[req].reqid = crp->crp_reqid;
1785 1.46 darran crypt_res[req].opaque = crp->crp_usropaque;
1786 1.46 darran completed++;
1787 1.36 tls
1788 1.36 tls if (crp->crp_etype != 0) {
1789 1.36 tls crypt_res[req].status = crp->crp_etype;
1790 1.36 tls goto bail;
1791 1.36 tls }
1792 1.36 tls
1793 1.36 tls if (cse->error) {
1794 1.36 tls crypt_res[req].status = cse->error;
1795 1.36 tls goto bail;
1796 1.36 tls }
1797 1.36 tls
1798 1.42 christos if (crp->dst && (crypt_res[req].status =
1799 1.42 christos copyout(crp->uio.uio_iov[0].iov_base, crp->dst,
1800 1.42 christos crp->len)))
1801 1.36 tls goto bail;
1802 1.36 tls
1803 1.42 christos if (crp->mac && (crypt_res[req].status =
1804 1.42 christos copyout(crp->crp_mac, crp->mac,
1805 1.42 christos cse->thash->authsize)))
1806 1.36 tls goto bail;
1807 1.46 darran
1808 1.36 tls bail:
1809 1.46 darran TAILQ_REMOVE(&crp_delfree_q, crp, crp_next);
1810 1.46 darran kmem_free(crp->uio.uio_iov[0].iov_base,
1811 1.46 darran crp->uio.uio_iov[0].iov_len);
1812 1.46 darran crypto_freereq(crp);
1813 1.36 tls req++;
1814 1.36 tls }
1815 1.36 tls
1816 1.46 darran if (req < count) {
1817 1.46 darran krp = TAILQ_FIRST(&krp_delfree_q);
1818 1.36 tls if (krp) {
1819 1.36 tls crypt_res[req].reqid = krp->krp_reqid;
1820 1.36 tls crypt_res[req].opaque = krp->krp_usropaque;
1821 1.36 tls completed++;
1822 1.36 tls if (krp->krp_status != 0) {
1823 1.36 tls DPRINTF(("cryptodev_key: "
1824 1.42 christos "krp->krp_status 0x%08x\n",
1825 1.42 christos krp->krp_status));
1826 1.42 christos crypt_res[req].status = krp->krp_status;
1827 1.36 tls goto fail;
1828 1.36 tls }
1829 1.36 tls
1830 1.36 tls for (i = krp->krp_iparams; i < krp->krp_iparams
1831 1.42 christos + krp->krp_oparams; i++) {
1832 1.36 tls size = (krp->krp_param[i].crp_nbits
1833 1.42 christos + 7) / 8;
1834 1.36 tls if (size == 0)
1835 1.36 tls continue;
1836 1.36 tls crypt_res[req].status = copyout
1837 1.36 tls (krp->krp_param[i].crp_p,
1838 1.36 tls krp->crk_param[i].crp_p, size);
1839 1.36 tls if (crypt_res[req].status) {
1840 1.36 tls DPRINTF(("cryptodev_key: "
1841 1.42 christos "copyout oparam %d failed, "
1842 1.42 christos "error=%d\n",
1843 1.42 christos i - krp->krp_iparams,
1844 1.42 christos crypt_res[req].status));
1845 1.36 tls goto fail;
1846 1.36 tls }
1847 1.36 tls }
1848 1.36 tls fail:
1849 1.46 darran TAILQ_REMOVE(&krp_delfree_q, krp, krp_next);
1850 1.36 tls /* not sure what to do for this */
1851 1.36 tls /* kop[req].crk_status = krp->krp_status; */
1852 1.46 darran for (i = 0; i < CRK_MAXPARAM; i++) {
1853 1.46 darran struct crparam *kp = &(krp->krp_param[i]);
1854 1.46 darran if (kp->crp_p) {
1855 1.46 darran size = (kp->crp_nbits + 7) / 8;
1856 1.46 darran KASSERT(size > 0);
1857 1.46 darran (void)memset(kp->crp_p, 0, size);
1858 1.46 darran kmem_free(kp->crp_p, size);
1859 1.46 darran }
1860 1.46 darran }
1861 1.46 darran cv_destroy(&krp->krp_cv);
1862 1.46 darran pool_put(&cryptkop_pool, krp);
1863 1.46 darran req++;
1864 1.36 tls }
1865 1.36 tls }
1866 1.36 tls }
1867 1.36 tls
1868 1.36 tls return completed;
1869 1.36 tls }
1870 1.36 tls
1871 1.36 tls static int
1872 1.36 tls cryptodev_getstatus (struct fcrypt *fcr, struct crypt_result *crypt_res)
1873 1.36 tls {
1874 1.45 darran struct cryptop *crp = NULL, *cnext;
1875 1.45 darran struct cryptkop *krp = NULL, *knext;
1876 1.36 tls struct csession *cse;
1877 1.36 tls int i, size, req = 0;
1878 1.36 tls
1879 1.36 tls mutex_spin_enter(&crypto_mtx);
1880 1.36 tls /* Here we dont know for which request the user is requesting the
1881 1.36 tls * response so checking in both the queues */
1882 1.45 darran TAILQ_FOREACH_SAFE(crp, &fcr->crp_ret_mq, crp_next, cnext) {
1883 1.36 tls if(crp && (crp->crp_reqid == crypt_res->reqid)) {
1884 1.36 tls cse = (struct csession *)crp->crp_opaque;
1885 1.36 tls crypt_res->opaque = crp->crp_usropaque;
1886 1.36 tls cse = csefind(fcr, cse->ses);
1887 1.36 tls if (cse == NULL) {
1888 1.36 tls DPRINTF(("csefind failed\n"));
1889 1.36 tls crypt_res->status = EINVAL;
1890 1.36 tls goto bail;
1891 1.36 tls }
1892 1.36 tls
1893 1.36 tls if (crp->crp_etype != 0) {
1894 1.36 tls crypt_res->status = crp->crp_etype;
1895 1.36 tls goto bail;
1896 1.36 tls }
1897 1.36 tls
1898 1.36 tls if (cse->error) {
1899 1.36 tls crypt_res->status = cse->error;
1900 1.36 tls goto bail;
1901 1.36 tls }
1902 1.36 tls
1903 1.42 christos if (crp->dst && (crypt_res->status =
1904 1.42 christos copyout(crp->uio.uio_iov[0].iov_base,
1905 1.42 christos crp->dst, crp->len)))
1906 1.36 tls goto bail;
1907 1.36 tls
1908 1.42 christos if (crp->mac && (crypt_res->status =
1909 1.42 christos copyout(crp->crp_mac, crp->mac,
1910 1.42 christos cse->thash->authsize)))
1911 1.36 tls goto bail;
1912 1.36 tls bail:
1913 1.36 tls TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
1914 1.36 tls
1915 1.36 tls mutex_spin_exit(&crypto_mtx);
1916 1.36 tls crypto_freereq(crp);
1917 1.36 tls return 0;
1918 1.36 tls }
1919 1.36 tls }
1920 1.36 tls
1921 1.45 darran TAILQ_FOREACH_SAFE(krp, &fcr->crp_ret_mkq, krp_next, knext) {
1922 1.36 tls if(krp && (krp->krp_reqid == crypt_res->reqid)) {
1923 1.36 tls crypt_res[req].opaque = krp->krp_usropaque;
1924 1.36 tls if (krp->krp_status != 0) {
1925 1.36 tls DPRINTF(("cryptodev_key: "
1926 1.42 christos "krp->krp_status 0x%08x\n",
1927 1.42 christos krp->krp_status));
1928 1.36 tls crypt_res[req].status = krp->krp_status;
1929 1.36 tls goto fail;
1930 1.36 tls }
1931 1.36 tls
1932 1.42 christos for (i = krp->krp_iparams; i < krp->krp_iparams +
1933 1.42 christos krp->krp_oparams; i++) {
1934 1.36 tls size = (krp->krp_param[i].crp_nbits + 7) / 8;
1935 1.36 tls if (size == 0)
1936 1.36 tls continue;
1937 1.42 christos crypt_res[req].status = copyout(
1938 1.42 christos krp->krp_param[i].crp_p,
1939 1.42 christos krp->crk_param[i].crp_p, size);
1940 1.36 tls if (crypt_res[req].status) {
1941 1.36 tls DPRINTF(("cryptodev_key: copyout oparam"
1942 1.42 christos "%d failed, error=%d\n",
1943 1.42 christos i - krp->krp_iparams,
1944 1.42 christos crypt_res[req].status));
1945 1.36 tls goto fail;
1946 1.36 tls }
1947 1.36 tls }
1948 1.36 tls fail:
1949 1.36 tls TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
1950 1.36 tls mutex_spin_exit(&crypto_mtx);
1951 1.36 tls /* not sure what to do for this */
1952 1.36 tls /* kop[req].crk_status = krp->krp_status; */
1953 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++) {
1954 1.36 tls struct crparam *kp = &(krp->krp_param[i]);
1955 1.36 tls if (kp->crp_p) {
1956 1.36 tls size = (kp->crp_nbits + 7) / 8;
1957 1.36 tls KASSERT(size > 0);
1958 1.36 tls memset(kp->crp_p, 0, size);
1959 1.36 tls kmem_free(kp->crp_p, size);
1960 1.36 tls }
1961 1.36 tls }
1962 1.45 darran cv_destroy(&krp->krp_cv);
1963 1.36 tls pool_put(&cryptkop_pool, krp);
1964 1.36 tls return 0;
1965 1.36 tls }
1966 1.36 tls }
1967 1.36 tls mutex_spin_exit(&crypto_mtx);
1968 1.36 tls return EINPROGRESS;
1969 1.36 tls }
1970 1.36 tls
1971 1.36 tls static int
1972 1.48 christos cryptof_stat(struct file *fp, struct stat *st)
1973 1.48 christos {
1974 1.48 christos struct fcrypt *fcr = fp->f_data;
1975 1.48 christos
1976 1.48 christos (void)memset(st, 0, sizeof(st));
1977 1.49 christos
1978 1.49 christos mutex_spin_enter(&crypto_mtx);
1979 1.48 christos st->st_dev = makedev(cdevsw_lookup_major(&crypto_cdevsw), fcr->sesn);
1980 1.48 christos st->st_atimespec = fcr->atime;
1981 1.48 christos st->st_mtimespec = fcr->mtime;
1982 1.48 christos st->st_ctimespec = st->st_birthtimespec = fcr->btime;
1983 1.49 christos st->st_uid = kauth_cred_geteuid(fp->f_cred);
1984 1.49 christos st->st_gid = kauth_cred_getegid(fp->f_cred);
1985 1.49 christos mutex_spin_exit(&crypto_mtx);
1986 1.49 christos
1987 1.48 christos return 0;
1988 1.48 christos }
1989 1.48 christos
1990 1.48 christos static int
1991 1.36 tls cryptof_poll(struct file *fp, int events)
1992 1.36 tls {
1993 1.36 tls struct fcrypt *fcr = (struct fcrypt *)fp->f_data;
1994 1.38 rmind int revents = 0;
1995 1.36 tls
1996 1.36 tls if (!(events & (POLLIN | POLLRDNORM))) {
1997 1.36 tls /* only support read and POLLIN */
1998 1.36 tls return 0;
1999 1.36 tls }
2000 1.36 tls
2001 1.38 rmind mutex_spin_enter(&crypto_mtx);
2002 1.36 tls if (TAILQ_EMPTY(&fcr->crp_ret_mq) && TAILQ_EMPTY(&fcr->crp_ret_mkq)) {
2003 1.38 rmind /* no completed requests pending, save the poll for later */
2004 1.36 tls selrecord(curlwp, &fcr->sinfo);
2005 1.36 tls } else {
2006 1.36 tls /* let the app(s) know that there are completed requests */
2007 1.38 rmind revents = events & (POLLIN | POLLRDNORM);
2008 1.36 tls }
2009 1.38 rmind mutex_spin_exit(&crypto_mtx);
2010 1.38 rmind
2011 1.38 rmind return revents;
2012 1.36 tls }
2013 1.36 tls
2014 1.15 thorpej /*
2015 1.15 thorpej * Pseudo-device initialization routine for /dev/crypto
2016 1.15 thorpej */
2017 1.15 thorpej void cryptoattach(int);
2018 1.15 thorpej
2019 1.15 thorpej void
2020 1.25 christos cryptoattach(int num)
2021 1.15 thorpej {
2022 1.29 tls pool_init(&fcrpl, sizeof(struct fcrypt), 0, 0, 0, "fcrpl",
2023 1.42 christos NULL, IPL_NET); /* XXX IPL_NET ("splcrypto") */
2024 1.29 tls pool_init(&csepl, sizeof(struct csession), 0, 0, 0, "csepl",
2025 1.42 christos NULL, IPL_NET); /* XXX IPL_NET ("splcrypto") */
2026 1.29 tls
2027 1.29 tls /*
2028 1.29 tls * Preallocate space for 64 users, with 5 sessions each.
2029 1.29 tls * (consider that a TLS protocol session requires at least
2030 1.29 tls * 3DES, MD5, and SHA1 (both hashes are used in the PRF) for
2031 1.29 tls * the negotiation, plus HMAC_SHA1 for the actual SSL records,
2032 1.29 tls * consuming one session here for each algorithm.
2033 1.29 tls */
2034 1.29 tls pool_prime(&fcrpl, 64);
2035 1.29 tls pool_prime(&csepl, 64 * 5);
2036 1.15 thorpej }
2037