cryptodev.c revision 1.55 1 1.55 drochner /* $NetBSD: cryptodev.c,v 1.55 2011/02/19 16:26:34 drochner 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 1.55 drochner __KERNEL_RCSID(0, "$NetBSD: cryptodev.c,v 1.55 2011/02/19 16:26:34 drochner 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 1.55 drochner #include "opt_compat_netbsd.h"
91 1.1 jonathan #include <opencrypto/cryptodev.h>
92 1.55 drochner #include <opencrypto/cryptodev_internal.h>
93 1.1 jonathan #include <opencrypto/xform.h>
94 1.1 jonathan
95 1.1 jonathan struct csession {
96 1.1 jonathan TAILQ_ENTRY(csession) next;
97 1.1 jonathan u_int64_t sid;
98 1.1 jonathan u_int32_t ses;
99 1.1 jonathan
100 1.46 darran u_int32_t cipher; /* note: shares name space in crd_alg */
101 1.54 drochner const struct enc_xform *txform;
102 1.46 darran u_int32_t mac; /* note: shares name space in crd_alg */
103 1.54 drochner const struct auth_hash *thash;
104 1.46 darran u_int32_t comp_alg; /* note: shares name space in crd_alg */
105 1.54 drochner const struct comp_algo *tcomp;
106 1.1 jonathan
107 1.26 christos void * key;
108 1.1 jonathan int keylen;
109 1.1 jonathan u_char tmp_iv[EALG_MAX_BLOCK_LEN];
110 1.1 jonathan
111 1.26 christos void * mackey;
112 1.1 jonathan int mackeylen;
113 1.1 jonathan u_char tmp_mac[CRYPTO_MAX_MAC_LEN];
114 1.1 jonathan
115 1.29 tls struct iovec iovec[1]; /* user requests never have more */
116 1.1 jonathan struct uio uio;
117 1.1 jonathan int error;
118 1.1 jonathan };
119 1.1 jonathan
120 1.1 jonathan struct fcrypt {
121 1.1 jonathan TAILQ_HEAD(csessionlist, csession) csessions;
122 1.36 tls TAILQ_HEAD(crprethead, cryptop) crp_ret_mq;
123 1.36 tls TAILQ_HEAD(krprethead, cryptkop) crp_ret_mkq;
124 1.1 jonathan int sesn;
125 1.36 tls struct selinfo sinfo;
126 1.36 tls u_int32_t requestid;
127 1.48 christos struct timespec atime;
128 1.48 christos struct timespec mtime;
129 1.48 christos struct timespec btime;
130 1.1 jonathan };
131 1.1 jonathan
132 1.29 tls /* For our fixed-size allocations */
133 1.38 rmind static struct pool fcrpl;
134 1.38 rmind static struct pool csepl;
135 1.1 jonathan
136 1.1 jonathan /* Declaration of master device (fd-cloning/ctxt-allocating) entrypoints */
137 1.16 christos static int cryptoopen(dev_t dev, int flag, int mode, struct lwp *l);
138 1.1 jonathan static int cryptoread(dev_t dev, struct uio *uio, int ioflag);
139 1.1 jonathan static int cryptowrite(dev_t dev, struct uio *uio, int ioflag);
140 1.16 christos static int cryptoselect(dev_t dev, int rw, struct lwp *l);
141 1.1 jonathan
142 1.1 jonathan /* Declaration of cloned-device (per-ctxt) entrypoints */
143 1.36 tls static int cryptof_read(struct file *, off_t *, struct uio *,
144 1.42 christos kauth_cred_t, int);
145 1.36 tls static int cryptof_write(struct file *, off_t *, struct uio *,
146 1.42 christos kauth_cred_t, int);
147 1.36 tls static int cryptof_ioctl(struct file *, u_long, void *);
148 1.36 tls static int cryptof_close(struct file *);
149 1.36 tls static int cryptof_poll(struct file *, int);
150 1.48 christos static int cryptof_stat(struct file *, struct stat *);
151 1.1 jonathan
152 1.12 christos static const struct fileops cryptofops = {
153 1.47 ad .fo_read = cryptof_read,
154 1.47 ad .fo_write = cryptof_write,
155 1.47 ad .fo_ioctl = cryptof_ioctl,
156 1.47 ad .fo_fcntl = fnullop_fcntl,
157 1.47 ad .fo_poll = cryptof_poll,
158 1.48 christos .fo_stat = cryptof_stat,
159 1.47 ad .fo_close = cryptof_close,
160 1.47 ad .fo_kqfilter = fnullop_kqfilter,
161 1.51 dsl .fo_restart = fnullop_restart,
162 1.1 jonathan };
163 1.1 jonathan
164 1.46 darran struct csession *cryptodev_csefind(struct fcrypt *, u_int);
165 1.1 jonathan static struct csession *csefind(struct fcrypt *, u_int);
166 1.1 jonathan static int csedelete(struct fcrypt *, struct csession *);
167 1.1 jonathan static struct csession *cseadd(struct fcrypt *, struct csession *);
168 1.42 christos static struct csession *csecreate(struct fcrypt *, u_int64_t, void *,
169 1.46 darran u_int64_t, void *, u_int64_t, u_int32_t, u_int32_t, u_int32_t,
170 1.54 drochner const struct enc_xform *, const struct auth_hash *,
171 1.54 drochner const struct comp_algo *);
172 1.1 jonathan static int csefree(struct csession *);
173 1.1 jonathan
174 1.1 jonathan static int cryptodev_key(struct crypt_kop *);
175 1.36 tls static int cryptodev_mkey(struct fcrypt *, struct crypt_n_kop *, int);
176 1.36 tls static int cryptodev_msessionfin(struct fcrypt *, int, u_int32_t *);
177 1.1 jonathan
178 1.1 jonathan static int cryptodev_cb(void *);
179 1.1 jonathan static int cryptodevkey_cb(void *);
180 1.1 jonathan
181 1.36 tls static int cryptodev_mcb(void *);
182 1.36 tls static int cryptodevkey_mcb(void *);
183 1.36 tls
184 1.36 tls static int cryptodev_getmstatus(struct fcrypt *, struct crypt_result *,
185 1.42 christos int);
186 1.36 tls static int cryptodev_getstatus(struct fcrypt *, struct crypt_result *);
187 1.36 tls
188 1.55 drochner #ifdef COMPAT_50
189 1.46 darran extern int ocryptof_ioctl(struct file *, u_long, void *);
190 1.55 drochner #endif
191 1.46 darran
192 1.9 jonathan /*
193 1.9 jonathan * sysctl-able control variables for /dev/crypto now defined in crypto.c:
194 1.9 jonathan * crypto_usercrypto, crypto_userasmcrypto, crypto_devallowsoft.
195 1.9 jonathan */
196 1.1 jonathan
197 1.1 jonathan /* ARGSUSED */
198 1.1 jonathan int
199 1.35 ad cryptof_read(file_t *fp, off_t *poff,
200 1.25 christos struct uio *uio, kauth_cred_t cred, int flags)
201 1.1 jonathan {
202 1.42 christos return EIO;
203 1.1 jonathan }
204 1.1 jonathan
205 1.1 jonathan /* ARGSUSED */
206 1.1 jonathan int
207 1.35 ad cryptof_write(file_t *fp, off_t *poff,
208 1.25 christos struct uio *uio, kauth_cred_t cred, int flags)
209 1.1 jonathan {
210 1.42 christos return EIO;
211 1.1 jonathan }
212 1.1 jonathan
213 1.1 jonathan /* ARGSUSED */
214 1.1 jonathan int
215 1.36 tls cryptof_ioctl(struct file *fp, u_long cmd, void *data)
216 1.1 jonathan {
217 1.35 ad struct fcrypt *fcr = fp->f_data;
218 1.1 jonathan struct csession *cse;
219 1.1 jonathan struct session_op *sop;
220 1.36 tls struct session_n_op *snop;
221 1.1 jonathan struct crypt_op *cop;
222 1.36 tls struct crypt_mop *mop;
223 1.36 tls struct crypt_mkop *mkop;
224 1.36 tls struct crypt_n_op *cnop;
225 1.36 tls struct crypt_n_kop *knop;
226 1.36 tls struct crypt_sgop *sgop;
227 1.36 tls struct crypt_sfop *sfop;
228 1.36 tls struct cryptret *crypt_ret;
229 1.36 tls struct crypt_result *crypt_res;
230 1.1 jonathan u_int32_t ses;
231 1.36 tls u_int32_t *sesid;
232 1.1 jonathan int error = 0;
233 1.36 tls size_t count;
234 1.1 jonathan
235 1.29 tls /* backwards compatibility */
236 1.35 ad file_t *criofp;
237 1.29 tls struct fcrypt *criofcr;
238 1.29 tls int criofd;
239 1.29 tls
240 1.49 christos mutex_spin_enter(&crypto_mtx);
241 1.48 christos getnanotime(&fcr->atime);
242 1.49 christos mutex_spin_exit(&crypto_mtx);
243 1.48 christos
244 1.36 tls switch (cmd) {
245 1.29 tls case CRIOGET: /* XXX deprecated, remove after 5.0 */
246 1.36 tls if ((error = fd_allocfile(&criofp, &criofd)) != 0)
247 1.36 tls return error;
248 1.36 tls criofcr = pool_get(&fcrpl, PR_WAITOK);
249 1.33 tls mutex_spin_enter(&crypto_mtx);
250 1.36 tls TAILQ_INIT(&criofcr->csessions);
251 1.36 tls TAILQ_INIT(&criofcr->crp_ret_mq);
252 1.36 tls TAILQ_INIT(&criofcr->crp_ret_mkq);
253 1.36 tls selinit(&criofcr->sinfo);
254 1.36 tls
255 1.29 tls /*
256 1.29 tls * Don't ever return session 0, to allow detection of
257 1.29 tls * failed creation attempts with multi-create ioctl.
258 1.29 tls */
259 1.36 tls criofcr->sesn = 1;
260 1.36 tls criofcr->requestid = 1;
261 1.33 tls mutex_spin_exit(&crypto_mtx);
262 1.36 tls (void)fd_clone(criofp, criofd, (FREAD|FWRITE),
263 1.29 tls &cryptofops, criofcr);
264 1.36 tls *(u_int32_t *)data = criofd;
265 1.29 tls return error;
266 1.36 tls break;
267 1.1 jonathan case CIOCGSESSION:
268 1.1 jonathan sop = (struct session_op *)data;
269 1.36 tls error = cryptodev_session(fcr, sop);
270 1.36 tls break;
271 1.36 tls case CIOCNGSESSION:
272 1.36 tls sgop = (struct crypt_sgop *)data;
273 1.36 tls snop = kmem_alloc((sgop->count *
274 1.36 tls sizeof(struct session_n_op)), KM_SLEEP);
275 1.36 tls error = copyin(sgop->sessions, snop, sgop->count *
276 1.36 tls sizeof(struct session_n_op));
277 1.36 tls if (error) {
278 1.36 tls goto mbail;
279 1.1 jonathan }
280 1.1 jonathan
281 1.49 christos mutex_spin_enter(&crypto_mtx);
282 1.48 christos fcr->mtime = fcr->atime;
283 1.49 christos mutex_spin_exit(&crypto_mtx);
284 1.36 tls error = cryptodev_msession(fcr, snop, sgop->count);
285 1.36 tls if (error) {
286 1.36 tls goto mbail;
287 1.1 jonathan }
288 1.1 jonathan
289 1.36 tls error = copyout(snop, sgop->sessions, sgop->count *
290 1.42 christos sizeof(struct session_n_op));
291 1.36 tls mbail:
292 1.39 tls kmem_free(snop, sgop->count * sizeof(struct session_n_op));
293 1.1 jonathan break;
294 1.1 jonathan case CIOCFSESSION:
295 1.49 christos mutex_spin_enter(&crypto_mtx);
296 1.48 christos fcr->mtime = fcr->atime;
297 1.1 jonathan ses = *(u_int32_t *)data;
298 1.1 jonathan cse = csefind(fcr, ses);
299 1.1 jonathan if (cse == NULL)
300 1.42 christos return EINVAL;
301 1.1 jonathan csedelete(fcr, cse);
302 1.1 jonathan error = csefree(cse);
303 1.33 tls mutex_spin_exit(&crypto_mtx);
304 1.1 jonathan break;
305 1.36 tls case CIOCNFSESSION:
306 1.49 christos mutex_spin_enter(&crypto_mtx);
307 1.48 christos fcr->mtime = fcr->atime;
308 1.49 christos mutex_spin_exit(&crypto_mtx);
309 1.36 tls sfop = (struct crypt_sfop *)data;
310 1.36 tls sesid = kmem_alloc((sfop->count * sizeof(u_int32_t)),
311 1.42 christos KM_SLEEP);
312 1.42 christos error = copyin(sfop->sesid, sesid,
313 1.42 christos (sfop->count * sizeof(u_int32_t)));
314 1.36 tls if (!error) {
315 1.36 tls error = cryptodev_msessionfin(fcr, sfop->count, sesid);
316 1.36 tls }
317 1.36 tls kmem_free(sesid, (sfop->count * sizeof(u_int32_t)));
318 1.36 tls break;
319 1.1 jonathan case CIOCCRYPT:
320 1.49 christos mutex_spin_enter(&crypto_mtx);
321 1.48 christos fcr->mtime = fcr->atime;
322 1.1 jonathan cop = (struct crypt_op *)data;
323 1.1 jonathan cse = csefind(fcr, cop->ses);
324 1.33 tls mutex_spin_exit(&crypto_mtx);
325 1.18 christos if (cse == NULL) {
326 1.18 christos DPRINTF(("csefind failed\n"));
327 1.42 christos return EINVAL;
328 1.18 christos }
329 1.35 ad error = cryptodev_op(cse, cop, curlwp);
330 1.34 tls DPRINTF(("cryptodev_op error = %d\n", error));
331 1.1 jonathan break;
332 1.36 tls case CIOCNCRYPTM:
333 1.49 christos mutex_spin_enter(&crypto_mtx);
334 1.48 christos fcr->mtime = fcr->atime;
335 1.49 christos mutex_spin_exit(&crypto_mtx);
336 1.36 tls mop = (struct crypt_mop *)data;
337 1.36 tls cnop = kmem_alloc((mop->count * sizeof(struct crypt_n_op)),
338 1.42 christos KM_SLEEP);
339 1.42 christos error = copyin(mop->reqs, cnop,
340 1.42 christos (mop->count * sizeof(struct crypt_n_op)));
341 1.36 tls if(!error) {
342 1.42 christos error = cryptodev_mop(fcr, cnop, mop->count, curlwp);
343 1.36 tls if (!error) {
344 1.36 tls error = copyout(cnop, mop->reqs,
345 1.42 christos (mop->count * sizeof(struct crypt_n_op)));
346 1.36 tls }
347 1.36 tls }
348 1.36 tls kmem_free(cnop, (mop->count * sizeof(struct crypt_n_op)));
349 1.36 tls break;
350 1.1 jonathan case CIOCKEY:
351 1.1 jonathan error = cryptodev_key((struct crypt_kop *)data);
352 1.34 tls DPRINTF(("cryptodev_key error = %d\n", error));
353 1.1 jonathan break;
354 1.36 tls case CIOCNFKEYM:
355 1.49 christos mutex_spin_enter(&crypto_mtx);
356 1.48 christos fcr->mtime = fcr->atime;
357 1.49 christos mutex_spin_exit(&crypto_mtx);
358 1.36 tls mkop = (struct crypt_mkop *)data;
359 1.36 tls knop = kmem_alloc((mkop->count * sizeof(struct crypt_n_kop)),
360 1.42 christos KM_SLEEP);
361 1.36 tls error = copyin(mkop->reqs, knop,
362 1.42 christos (mkop->count * sizeof(struct crypt_n_kop)));
363 1.36 tls if (!error) {
364 1.36 tls error = cryptodev_mkey(fcr, knop, mkop->count);
365 1.36 tls if (!error)
366 1.36 tls error = copyout(knop, mkop->reqs,
367 1.42 christos (mkop->count * sizeof(struct crypt_n_kop)));
368 1.36 tls }
369 1.36 tls kmem_free(knop, (mkop->count * sizeof(struct crypt_n_kop)));
370 1.36 tls break;
371 1.1 jonathan case CIOCASYMFEAT:
372 1.1 jonathan error = crypto_getfeat((int *)data);
373 1.1 jonathan break;
374 1.36 tls case CIOCNCRYPTRETM:
375 1.49 christos mutex_spin_enter(&crypto_mtx);
376 1.48 christos fcr->mtime = fcr->atime;
377 1.49 christos mutex_spin_exit(&crypto_mtx);
378 1.36 tls crypt_ret = (struct cryptret *)data;
379 1.36 tls count = crypt_ret->count;
380 1.42 christos crypt_res = kmem_alloc((count * sizeof(struct crypt_result)),
381 1.42 christos KM_SLEEP);
382 1.36 tls error = copyin(crypt_ret->results, crypt_res,
383 1.42 christos (count * sizeof(struct crypt_result)));
384 1.36 tls if (error)
385 1.36 tls goto reterr;
386 1.36 tls crypt_ret->count = cryptodev_getmstatus(fcr, crypt_res,
387 1.42 christos crypt_ret->count);
388 1.36 tls /* sanity check count */
389 1.36 tls if (crypt_ret->count > count) {
390 1.37 dogcow printf("%s.%d: error returned count %zd > original "
391 1.42 christos " count %zd\n",
392 1.42 christos __FILE__, __LINE__, crypt_ret->count, count);
393 1.36 tls crypt_ret->count = count;
394 1.36 tls
395 1.36 tls }
396 1.36 tls error = copyout(crypt_res, crypt_ret->results,
397 1.42 christos (crypt_ret->count * sizeof(struct crypt_result)));
398 1.36 tls reterr:
399 1.42 christos kmem_free(crypt_res, (count * sizeof(struct crypt_result)));
400 1.36 tls break;
401 1.36 tls case CIOCNCRYPTRET:
402 1.36 tls error = cryptodev_getstatus(fcr, (struct crypt_result *)data);
403 1.36 tls break;
404 1.1 jonathan default:
405 1.55 drochner #ifdef COMPAT_50
406 1.46 darran /* Check for backward compatible commands */
407 1.46 darran error = ocryptof_ioctl(fp, cmd, data);
408 1.55 drochner #else
409 1.55 drochner return EINVAL;
410 1.55 drochner #endif
411 1.1 jonathan }
412 1.42 christos return error;
413 1.1 jonathan }
414 1.1 jonathan
415 1.46 darran int
416 1.25 christos cryptodev_op(struct csession *cse, struct crypt_op *cop, struct lwp *l)
417 1.1 jonathan {
418 1.1 jonathan struct cryptop *crp = NULL;
419 1.46 darran struct cryptodesc *crde = NULL, *crda = NULL, *crdc = NULL;
420 1.33 tls int error;
421 1.46 darran int iov_len = cop->len;
422 1.46 darran int flags=0;
423 1.46 darran int dst_len; /* copyout size */
424 1.1 jonathan
425 1.1 jonathan if (cop->len > 256*1024-4)
426 1.42 christos return E2BIG;
427 1.1 jonathan
428 1.13 jonathan if (cse->txform) {
429 1.13 jonathan if (cop->len == 0 || (cop->len % cse->txform->blocksize) != 0)
430 1.42 christos return EINVAL;
431 1.13 jonathan }
432 1.1 jonathan
433 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: iov_len %d\n",
434 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), iov_len));
435 1.46 darran if ((cse->tcomp) && cop->dst_len) {
436 1.46 darran if (iov_len < cop->dst_len) {
437 1.46 darran /* Need larger iov to deal with decompress */
438 1.46 darran iov_len = cop->dst_len;
439 1.46 darran }
440 1.46 darran DPRINTF(("cryptodev_op: iov_len -> %d for decompress\n", iov_len));
441 1.46 darran }
442 1.46 darran
443 1.42 christos (void)memset(&cse->uio, 0, sizeof(cse->uio));
444 1.1 jonathan cse->uio.uio_iovcnt = 1;
445 1.1 jonathan cse->uio.uio_resid = 0;
446 1.1 jonathan cse->uio.uio_rw = UIO_WRITE;
447 1.1 jonathan cse->uio.uio_iov = cse->iovec;
448 1.17 yamt UIO_SETUP_SYSSPACE(&cse->uio);
449 1.29 tls memset(&cse->iovec, 0, sizeof(cse->iovec));
450 1.46 darran
451 1.46 darran /* the iov needs to be big enough to handle the uncompressed
452 1.46 darran * data.... */
453 1.46 darran cse->uio.uio_iov[0].iov_len = iov_len;
454 1.46 darran cse->uio.uio_iov[0].iov_base = kmem_alloc(iov_len, KM_SLEEP);
455 1.29 tls cse->uio.uio_resid = cse->uio.uio_iov[0].iov_len;
456 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: uio.iov_base %p malloced %d bytes\n",
457 1.53 jakllsch CRYPTO_SESID2LID(cse->sid),
458 1.53 jakllsch cse->uio.uio_iov[0].iov_base, iov_len));
459 1.1 jonathan
460 1.46 darran crp = crypto_getreq((cse->tcomp != NULL) + (cse->txform != NULL) + (cse->thash != NULL));
461 1.1 jonathan if (crp == NULL) {
462 1.1 jonathan error = ENOMEM;
463 1.1 jonathan goto bail;
464 1.1 jonathan }
465 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: crp %p\n",
466 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), crp));
467 1.46 darran
468 1.46 darran /* crds are always ordered tcomp, thash, then txform */
469 1.46 darran /* with optional missing links */
470 1.46 darran
471 1.46 darran /* XXX: If we're going to compress then hash or encrypt, we need
472 1.46 darran * to be able to pass on the new size of the data.
473 1.46 darran */
474 1.46 darran
475 1.46 darran if (cse->tcomp) {
476 1.46 darran crdc = crp->crp_desc;
477 1.46 darran }
478 1.1 jonathan
479 1.1 jonathan if (cse->thash) {
480 1.46 darran crda = crdc ? crdc->crd_next : crp->crp_desc;
481 1.44 christos if (cse->txform && crda)
482 1.1 jonathan crde = crda->crd_next;
483 1.1 jonathan } else {
484 1.46 darran if (cse->txform) {
485 1.46 darran crde = crdc ? crdc->crd_next : crp->crp_desc;
486 1.46 darran } else if (!cse->tcomp) {
487 1.1 jonathan error = EINVAL;
488 1.1 jonathan goto bail;
489 1.1 jonathan }
490 1.1 jonathan }
491 1.1 jonathan
492 1.53 jakllsch DPRINTF(("ocf[%u]: iov_len %zu, cop->len %u\n",
493 1.53 jakllsch CRYPTO_SESID2LID(cse->sid),
494 1.46 darran cse->uio.uio_iov[0].iov_len,
495 1.46 darran cop->len));
496 1.46 darran
497 1.1 jonathan if ((error = copyin(cop->src, cse->uio.uio_iov[0].iov_base, cop->len)))
498 1.36 tls {
499 1.36 tls printf("copyin failed %s %d \n", (char *)cop->src, error);
500 1.1 jonathan goto bail;
501 1.36 tls }
502 1.1 jonathan
503 1.46 darran if (crdc) {
504 1.46 darran switch (cop->op) {
505 1.46 darran case COP_COMP:
506 1.46 darran crdc->crd_flags |= CRD_F_COMP;
507 1.46 darran break;
508 1.46 darran case COP_DECOMP:
509 1.46 darran crdc->crd_flags &= ~CRD_F_COMP;
510 1.46 darran break;
511 1.46 darran default:
512 1.46 darran break;
513 1.46 darran }
514 1.46 darran /* more data to follow? */
515 1.46 darran if (cop->flags & COP_F_MORE) {
516 1.46 darran flags |= CRYPTO_F_MORE;
517 1.46 darran }
518 1.46 darran crdc->crd_len = cop->len;
519 1.46 darran crdc->crd_inject = 0;
520 1.46 darran
521 1.46 darran crdc->crd_alg = cse->comp_alg;
522 1.46 darran crdc->crd_key = NULL;
523 1.46 darran crdc->crd_klen = 0;
524 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: crdc setup for comp_alg %d.\n",
525 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), crdc->crd_alg));
526 1.46 darran }
527 1.46 darran
528 1.1 jonathan if (crda) {
529 1.1 jonathan crda->crd_skip = 0;
530 1.1 jonathan crda->crd_len = cop->len;
531 1.1 jonathan crda->crd_inject = 0; /* ??? */
532 1.1 jonathan
533 1.1 jonathan crda->crd_alg = cse->mac;
534 1.1 jonathan crda->crd_key = cse->mackey;
535 1.1 jonathan crda->crd_klen = cse->mackeylen * 8;
536 1.46 darran DPRINTF(("cryptodev_op: crda setup for mac %d.\n", crda->crd_alg));
537 1.1 jonathan }
538 1.1 jonathan
539 1.1 jonathan if (crde) {
540 1.46 darran switch (cop->op) {
541 1.46 darran case COP_ENCRYPT:
542 1.1 jonathan crde->crd_flags |= CRD_F_ENCRYPT;
543 1.46 darran break;
544 1.46 darran case COP_DECRYPT:
545 1.1 jonathan crde->crd_flags &= ~CRD_F_ENCRYPT;
546 1.46 darran break;
547 1.46 darran default:
548 1.46 darran break;
549 1.46 darran }
550 1.1 jonathan crde->crd_len = cop->len;
551 1.1 jonathan crde->crd_inject = 0;
552 1.1 jonathan
553 1.1 jonathan crde->crd_alg = cse->cipher;
554 1.1 jonathan crde->crd_key = cse->key;
555 1.1 jonathan crde->crd_klen = cse->keylen * 8;
556 1.46 darran DPRINTF(("cryptodev_op: crde setup for cipher %d.\n", crde->crd_alg));
557 1.1 jonathan }
558 1.1 jonathan
559 1.46 darran
560 1.1 jonathan crp->crp_ilen = cop->len;
561 1.45 darran /* The reqest is flagged as CRYPTO_F_USER as long as it is running
562 1.45 darran * in the user IOCTL thread. This flag lets us skip using the retq for
563 1.45 darran * the request if it completes immediately. If the request ends up being
564 1.45 darran * delayed or is not completed immediately the flag is removed.
565 1.45 darran */
566 1.46 darran crp->crp_flags = CRYPTO_F_IOV | (cop->flags & COP_F_BATCH) | CRYPTO_F_USER |
567 1.46 darran flags;
568 1.26 christos crp->crp_buf = (void *)&cse->uio;
569 1.1 jonathan crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
570 1.1 jonathan crp->crp_sid = cse->sid;
571 1.1 jonathan crp->crp_opaque = (void *)cse;
572 1.1 jonathan
573 1.1 jonathan if (cop->iv) {
574 1.1 jonathan if (crde == NULL) {
575 1.1 jonathan error = EINVAL;
576 1.1 jonathan goto bail;
577 1.1 jonathan }
578 1.1 jonathan if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
579 1.1 jonathan error = EINVAL;
580 1.1 jonathan goto bail;
581 1.1 jonathan }
582 1.36 tls if ((error = copyin(cop->iv, cse->tmp_iv,
583 1.42 christos cse->txform->blocksize)))
584 1.1 jonathan goto bail;
585 1.42 christos (void)memcpy(crde->crd_iv, cse->tmp_iv, cse->txform->blocksize);
586 1.1 jonathan crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
587 1.1 jonathan crde->crd_skip = 0;
588 1.1 jonathan } else if (crde) {
589 1.20 christos if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
590 1.20 christos crde->crd_skip = 0;
591 1.20 christos } else {
592 1.20 christos crde->crd_flags |= CRD_F_IV_PRESENT;
593 1.20 christos crde->crd_skip = cse->txform->blocksize;
594 1.20 christos crde->crd_len -= cse->txform->blocksize;
595 1.20 christos }
596 1.1 jonathan }
597 1.1 jonathan
598 1.1 jonathan if (cop->mac) {
599 1.1 jonathan if (crda == NULL) {
600 1.1 jonathan error = EINVAL;
601 1.1 jonathan goto bail;
602 1.1 jonathan }
603 1.1 jonathan crp->crp_mac=cse->tmp_mac;
604 1.1 jonathan }
605 1.1 jonathan
606 1.33 tls /*
607 1.33 tls * XXX there was a comment here which said that we went to
608 1.33 tls * XXX splcrypto() but needed to only if CRYPTO_F_CBIMM,
609 1.33 tls * XXX disabled on NetBSD since 1.6O due to a race condition.
610 1.33 tls * XXX But crypto_dispatch went to splcrypto() itself! (And
611 1.33 tls * XXX now takes the crypto_mtx mutex itself). We do, however,
612 1.33 tls * XXX need to hold the mutex across the call to cv_wait().
613 1.33 tls * XXX (should we arrange for crypto_dispatch to return to
614 1.33 tls * XXX us with it held? it seems quite ugly to do so.)
615 1.33 tls */
616 1.36 tls #ifdef notyet
617 1.36 tls eagain:
618 1.36 tls #endif
619 1.1 jonathan error = crypto_dispatch(crp);
620 1.33 tls mutex_spin_enter(&crypto_mtx);
621 1.36 tls
622 1.45 darran /*
623 1.45 darran * If the request was going to be completed by the
624 1.45 darran * ioctl thread then it would have been done by now.
625 1.52 hubertf * Remove the F_USER flag so crypto_done() is not confused
626 1.45 darran * if the crypto device calls it after this point.
627 1.45 darran */
628 1.45 darran crp->crp_flags &= ~(CRYPTO_F_USER);
629 1.45 darran
630 1.36 tls switch (error) {
631 1.36 tls #ifdef notyet /* don't loop forever -- but EAGAIN not possible here yet */
632 1.36 tls case EAGAIN:
633 1.36 tls mutex_spin_exit(&crypto_mtx);
634 1.36 tls goto eagain;
635 1.36 tls break;
636 1.36 tls #endif
637 1.36 tls case 0:
638 1.36 tls break;
639 1.36 tls default:
640 1.33 tls DPRINTF(("cryptodev_op: not waiting, error.\n"));
641 1.33 tls mutex_spin_exit(&crypto_mtx);
642 1.1 jonathan goto bail;
643 1.1 jonathan }
644 1.45 darran
645 1.33 tls while (!(crp->crp_flags & CRYPTO_F_DONE)) {
646 1.53 jakllsch DPRINTF(("cryptodev_op[%d]: sleeping on cv %p for crp %p\n",
647 1.53 jakllsch (uint32_t)cse->sid, &crp->crp_cv, crp));
648 1.33 tls cv_wait(&crp->crp_cv, &crypto_mtx); /* XXX cv_wait_sig? */
649 1.33 tls }
650 1.33 tls if (crp->crp_flags & CRYPTO_F_ONRETQ) {
651 1.45 darran /* XXX this should never happen now with the CRYPTO_F_USER flag
652 1.45 darran * changes.
653 1.45 darran */
654 1.33 tls DPRINTF(("cryptodev_op: DONE, not woken by cryptoret.\n"));
655 1.33 tls (void)crypto_ret_q_remove(crp);
656 1.33 tls }
657 1.33 tls mutex_spin_exit(&crypto_mtx);
658 1.1 jonathan
659 1.1 jonathan if (crp->crp_etype != 0) {
660 1.34 tls DPRINTF(("cryptodev_op: crp_etype %d\n", crp->crp_etype));
661 1.1 jonathan error = crp->crp_etype;
662 1.1 jonathan goto bail;
663 1.1 jonathan }
664 1.1 jonathan
665 1.1 jonathan if (cse->error) {
666 1.34 tls DPRINTF(("cryptodev_op: cse->error %d\n", cse->error));
667 1.1 jonathan error = cse->error;
668 1.1 jonathan goto bail;
669 1.1 jonathan }
670 1.1 jonathan
671 1.46 darran dst_len = crp->crp_ilen;
672 1.46 darran /* let the user know how much data was returned */
673 1.46 darran if (crp->crp_olen) {
674 1.46 darran dst_len = cop->dst_len = crp->crp_olen;
675 1.46 darran }
676 1.46 darran crp->len = dst_len;
677 1.46 darran
678 1.46 darran if (cop->dst) {
679 1.46 darran DPRINTF(("cryptodev_op: copyout %d bytes to %p\n", dst_len, cop->dst));
680 1.46 darran }
681 1.1 jonathan if (cop->dst &&
682 1.46 darran (error = copyout(cse->uio.uio_iov[0].iov_base, cop->dst, dst_len)))
683 1.36 tls {
684 1.34 tls DPRINTF(("cryptodev_op: copyout error %d\n", error));
685 1.1 jonathan goto bail;
686 1.34 tls }
687 1.1 jonathan
688 1.1 jonathan if (cop->mac &&
689 1.34 tls (error = copyout(crp->crp_mac, cop->mac, cse->thash->authsize))) {
690 1.34 tls DPRINTF(("cryptodev_op: mac copyout error %d\n", error));
691 1.1 jonathan goto bail;
692 1.34 tls }
693 1.1 jonathan
694 1.46 darran
695 1.1 jonathan bail:
696 1.45 darran if (crp) {
697 1.1 jonathan crypto_freereq(crp);
698 1.45 darran }
699 1.46 darran if (cse->uio.uio_iov[0].iov_base) {
700 1.46 darran kmem_free(cse->uio.uio_iov[0].iov_base,iov_len);
701 1.46 darran }
702 1.1 jonathan
703 1.42 christos return error;
704 1.1 jonathan }
705 1.1 jonathan
706 1.1 jonathan static int
707 1.1 jonathan cryptodev_cb(void *op)
708 1.1 jonathan {
709 1.1 jonathan struct cryptop *crp = (struct cryptop *) op;
710 1.1 jonathan struct csession *cse = (struct csession *)crp->crp_opaque;
711 1.33 tls int error = 0;
712 1.1 jonathan
713 1.33 tls mutex_spin_enter(&crypto_mtx);
714 1.1 jonathan cse->error = crp->crp_etype;
715 1.33 tls if (crp->crp_etype == EAGAIN) {
716 1.33 tls /* always drop mutex to call dispatch routine */
717 1.33 tls mutex_spin_exit(&crypto_mtx);
718 1.33 tls error = crypto_dispatch(crp);
719 1.33 tls mutex_spin_enter(&crypto_mtx);
720 1.33 tls }
721 1.33 tls if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
722 1.33 tls cv_signal(&crp->crp_cv);
723 1.33 tls }
724 1.33 tls mutex_spin_exit(&crypto_mtx);
725 1.42 christos return 0;
726 1.1 jonathan }
727 1.1 jonathan
728 1.1 jonathan static int
729 1.36 tls cryptodev_mcb(void *op)
730 1.36 tls {
731 1.36 tls struct cryptop *crp = (struct cryptop *) op;
732 1.36 tls struct csession *cse = (struct csession *)crp->crp_opaque;
733 1.36 tls int error=0;
734 1.36 tls
735 1.36 tls mutex_spin_enter(&crypto_mtx);
736 1.36 tls cse->error = crp->crp_etype;
737 1.36 tls if (crp->crp_etype == EAGAIN) {
738 1.36 tls mutex_spin_exit(&crypto_mtx);
739 1.36 tls error = crypto_dispatch(crp);
740 1.36 tls mutex_spin_enter(&crypto_mtx);
741 1.36 tls }
742 1.36 tls if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
743 1.36 tls cv_signal(&crp->crp_cv);
744 1.36 tls }
745 1.36 tls
746 1.36 tls TAILQ_INSERT_TAIL(&crp->fcrp->crp_ret_mq, crp, crp_next);
747 1.38 rmind selnotify(&crp->fcrp->sinfo, 0, 0);
748 1.36 tls mutex_spin_exit(&crypto_mtx);
749 1.42 christos return 0;
750 1.36 tls }
751 1.36 tls
752 1.36 tls static int
753 1.1 jonathan cryptodevkey_cb(void *op)
754 1.1 jonathan {
755 1.42 christos struct cryptkop *krp = op;
756 1.36 tls
757 1.36 tls mutex_spin_enter(&crypto_mtx);
758 1.36 tls cv_signal(&krp->krp_cv);
759 1.36 tls mutex_spin_exit(&crypto_mtx);
760 1.42 christos return 0;
761 1.36 tls }
762 1.36 tls
763 1.36 tls static int
764 1.36 tls cryptodevkey_mcb(void *op)
765 1.36 tls {
766 1.42 christos struct cryptkop *krp = op;
767 1.1 jonathan
768 1.33 tls mutex_spin_enter(&crypto_mtx);
769 1.33 tls cv_signal(&krp->krp_cv);
770 1.36 tls TAILQ_INSERT_TAIL(&krp->fcrp->crp_ret_mkq, krp, krp_next);
771 1.38 rmind selnotify(&krp->fcrp->sinfo, 0, 0);
772 1.33 tls mutex_spin_exit(&crypto_mtx);
773 1.42 christos return 0;
774 1.1 jonathan }
775 1.1 jonathan
776 1.1 jonathan static int
777 1.1 jonathan cryptodev_key(struct crypt_kop *kop)
778 1.1 jonathan {
779 1.1 jonathan struct cryptkop *krp = NULL;
780 1.1 jonathan int error = EINVAL;
781 1.1 jonathan int in, out, size, i;
782 1.1 jonathan
783 1.42 christos if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM)
784 1.42 christos return EFBIG;
785 1.1 jonathan
786 1.1 jonathan in = kop->crk_iparams;
787 1.1 jonathan out = kop->crk_oparams;
788 1.1 jonathan switch (kop->crk_op) {
789 1.1 jonathan case CRK_MOD_EXP:
790 1.1 jonathan if (in == 3 && out == 1)
791 1.1 jonathan break;
792 1.42 christos return EINVAL;
793 1.1 jonathan case CRK_MOD_EXP_CRT:
794 1.1 jonathan if (in == 6 && out == 1)
795 1.1 jonathan break;
796 1.42 christos return EINVAL;
797 1.1 jonathan case CRK_DSA_SIGN:
798 1.1 jonathan if (in == 5 && out == 2)
799 1.1 jonathan break;
800 1.42 christos return EINVAL;
801 1.1 jonathan case CRK_DSA_VERIFY:
802 1.1 jonathan if (in == 7 && out == 0)
803 1.1 jonathan break;
804 1.42 christos return EINVAL;
805 1.1 jonathan case CRK_DH_COMPUTE_KEY:
806 1.1 jonathan if (in == 3 && out == 1)
807 1.1 jonathan break;
808 1.42 christos return EINVAL;
809 1.27 tls case CRK_MOD_ADD:
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_ADDINV:
814 1.27 tls if (in == 2 && out == 1)
815 1.27 tls break;
816 1.42 christos return EINVAL;
817 1.27 tls case CRK_MOD_SUB:
818 1.27 tls if (in == 3 && out == 1)
819 1.27 tls break;
820 1.42 christos return EINVAL;
821 1.27 tls case CRK_MOD_MULT:
822 1.27 tls if (in == 3 && out == 1)
823 1.27 tls break;
824 1.42 christos return EINVAL;
825 1.27 tls case CRK_MOD_MULTINV:
826 1.27 tls if (in == 2 && out == 1)
827 1.27 tls break;
828 1.42 christos return EINVAL;
829 1.27 tls case CRK_MOD:
830 1.27 tls if (in == 2 && out == 1)
831 1.27 tls break;
832 1.42 christos return EINVAL;
833 1.1 jonathan default:
834 1.42 christos return EINVAL;
835 1.1 jonathan }
836 1.1 jonathan
837 1.33 tls krp = pool_get(&cryptkop_pool, PR_WAITOK);
838 1.42 christos (void)memset(krp, 0, sizeof *krp);
839 1.33 tls cv_init(&krp->krp_cv, "crykdev");
840 1.1 jonathan krp->krp_op = kop->crk_op;
841 1.1 jonathan krp->krp_status = kop->crk_status;
842 1.1 jonathan krp->krp_iparams = kop->crk_iparams;
843 1.1 jonathan krp->krp_oparams = kop->crk_oparams;
844 1.1 jonathan krp->krp_status = 0;
845 1.1 jonathan krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
846 1.1 jonathan
847 1.1 jonathan for (i = 0; i < CRK_MAXPARAM; i++)
848 1.1 jonathan krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
849 1.1 jonathan for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
850 1.1 jonathan size = (krp->krp_param[i].crp_nbits + 7) / 8;
851 1.1 jonathan if (size == 0)
852 1.1 jonathan continue;
853 1.36 tls krp->krp_param[i].crp_p = kmem_alloc(size, KM_SLEEP);
854 1.1 jonathan if (i >= krp->krp_iparams)
855 1.1 jonathan continue;
856 1.42 christos error = copyin(kop->crk_param[i].crp_p,
857 1.42 christos krp->krp_param[i].crp_p, size);
858 1.1 jonathan if (error)
859 1.1 jonathan goto fail;
860 1.1 jonathan }
861 1.1 jonathan
862 1.1 jonathan error = crypto_kdispatch(krp);
863 1.33 tls if (error != 0) {
864 1.1 jonathan goto fail;
865 1.33 tls }
866 1.33 tls
867 1.33 tls mutex_spin_enter(&crypto_mtx);
868 1.33 tls while (!(krp->krp_flags & CRYPTO_F_DONE)) {
869 1.33 tls cv_wait(&krp->krp_cv, &crypto_mtx); /* XXX cv_wait_sig? */
870 1.33 tls }
871 1.33 tls if (krp->krp_flags & CRYPTO_F_ONRETQ) {
872 1.33 tls DPRINTF(("cryptodev_key: DONE early, not via cryptoret.\n"));
873 1.33 tls (void)crypto_ret_kq_remove(krp);
874 1.33 tls }
875 1.33 tls mutex_spin_exit(&crypto_mtx);
876 1.1 jonathan
877 1.1 jonathan if (krp->krp_status != 0) {
878 1.42 christos DPRINTF(("cryptodev_key: krp->krp_status 0x%08x\n",
879 1.42 christos krp->krp_status));
880 1.1 jonathan error = krp->krp_status;
881 1.1 jonathan goto fail;
882 1.1 jonathan }
883 1.1 jonathan
884 1.42 christos for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams;
885 1.42 christos i++) {
886 1.1 jonathan size = (krp->krp_param[i].crp_nbits + 7) / 8;
887 1.1 jonathan if (size == 0)
888 1.1 jonathan continue;
889 1.42 christos error = copyout(krp->krp_param[i].crp_p,
890 1.42 christos kop->crk_param[i].crp_p, size);
891 1.34 tls if (error) {
892 1.42 christos DPRINTF(("cryptodev_key: copyout oparam %d failed, "
893 1.42 christos "error=%d\n", i-krp->krp_iparams, error));
894 1.1 jonathan goto fail;
895 1.34 tls }
896 1.1 jonathan }
897 1.1 jonathan
898 1.1 jonathan fail:
899 1.43 christos kop->crk_status = krp->krp_status;
900 1.43 christos for (i = 0; i < CRK_MAXPARAM; i++) {
901 1.43 christos struct crparam *kp = &(krp->krp_param[i]);
902 1.43 christos if (krp->krp_param[i].crp_p) {
903 1.43 christos size = (kp->crp_nbits + 7) / 8;
904 1.43 christos KASSERT(size > 0);
905 1.43 christos (void)memset(kp->crp_p, 0, size);
906 1.43 christos kmem_free(kp->crp_p, size);
907 1.1 jonathan }
908 1.1 jonathan }
909 1.45 darran cv_destroy(&krp->krp_cv);
910 1.43 christos pool_put(&cryptkop_pool, krp);
911 1.34 tls DPRINTF(("cryptodev_key: error=0x%08x\n", error));
912 1.42 christos return error;
913 1.1 jonathan }
914 1.1 jonathan
915 1.1 jonathan /* ARGSUSED */
916 1.1 jonathan static int
917 1.36 tls cryptof_close(struct file *fp)
918 1.1 jonathan {
919 1.35 ad struct fcrypt *fcr = fp->f_data;
920 1.1 jonathan struct csession *cse;
921 1.1 jonathan
922 1.33 tls mutex_spin_enter(&crypto_mtx);
923 1.1 jonathan while ((cse = TAILQ_FIRST(&fcr->csessions))) {
924 1.1 jonathan TAILQ_REMOVE(&fcr->csessions, cse, next);
925 1.1 jonathan (void)csefree(cse);
926 1.1 jonathan }
927 1.36 tls seldestroy(&fcr->sinfo);
928 1.1 jonathan fp->f_data = NULL;
929 1.33 tls mutex_spin_exit(&crypto_mtx);
930 1.1 jonathan
931 1.38 rmind pool_put(&fcrpl, fcr);
932 1.1 jonathan return 0;
933 1.1 jonathan }
934 1.1 jonathan
935 1.46 darran /* needed for compatibility module */
936 1.46 darran struct csession *cryptodev_csefind(struct fcrypt *fcr, u_int ses)
937 1.46 darran {
938 1.46 darran return csefind(fcr, ses);
939 1.46 darran }
940 1.46 darran
941 1.33 tls /* csefind: call with crypto_mtx held. */
942 1.1 jonathan static struct csession *
943 1.1 jonathan csefind(struct fcrypt *fcr, u_int ses)
944 1.1 jonathan {
945 1.45 darran struct csession *cse, *cnext, *ret = NULL;
946 1.1 jonathan
947 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
948 1.45 darran TAILQ_FOREACH_SAFE(cse, &fcr->csessions, next, cnext)
949 1.1 jonathan if (cse->ses == ses)
950 1.33 tls ret = cse;
951 1.36 tls
952 1.42 christos return ret;
953 1.1 jonathan }
954 1.1 jonathan
955 1.33 tls /* csedelete: call with crypto_mtx held. */
956 1.1 jonathan static int
957 1.1 jonathan csedelete(struct fcrypt *fcr, struct csession *cse_del)
958 1.1 jonathan {
959 1.45 darran struct csession *cse, *cnext;
960 1.33 tls int ret = 0;
961 1.1 jonathan
962 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
963 1.45 darran TAILQ_FOREACH_SAFE(cse, &fcr->csessions, next, cnext) {
964 1.1 jonathan if (cse == cse_del) {
965 1.1 jonathan TAILQ_REMOVE(&fcr->csessions, cse, next);
966 1.33 tls ret = 1;
967 1.1 jonathan }
968 1.1 jonathan }
969 1.42 christos return ret;
970 1.1 jonathan }
971 1.1 jonathan
972 1.33 tls /* cseadd: call with crypto_mtx held. */
973 1.1 jonathan static struct csession *
974 1.1 jonathan cseadd(struct fcrypt *fcr, struct csession *cse)
975 1.1 jonathan {
976 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
977 1.33 tls /* don't let session ID wrap! */
978 1.33 tls if (fcr->sesn + 1 == 0) return NULL;
979 1.1 jonathan TAILQ_INSERT_TAIL(&fcr->csessions, cse, next);
980 1.1 jonathan cse->ses = fcr->sesn++;
981 1.42 christos return cse;
982 1.1 jonathan }
983 1.1 jonathan
984 1.33 tls /* csecreate: call with crypto_mtx held. */
985 1.1 jonathan static struct csession *
986 1.26 christos csecreate(struct fcrypt *fcr, u_int64_t sid, void *key, u_int64_t keylen,
987 1.26 christos void *mackey, u_int64_t mackeylen, u_int32_t cipher, u_int32_t mac,
988 1.54 drochner u_int32_t comp_alg, const struct enc_xform *txform,
989 1.54 drochner const struct auth_hash *thash, const struct comp_algo *tcomp)
990 1.1 jonathan {
991 1.1 jonathan struct csession *cse;
992 1.1 jonathan
993 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
994 1.29 tls cse = pool_get(&csepl, PR_NOWAIT);
995 1.1 jonathan if (cse == NULL)
996 1.1 jonathan return NULL;
997 1.1 jonathan cse->key = key;
998 1.1 jonathan cse->keylen = keylen/8;
999 1.1 jonathan cse->mackey = mackey;
1000 1.1 jonathan cse->mackeylen = mackeylen/8;
1001 1.1 jonathan cse->sid = sid;
1002 1.1 jonathan cse->cipher = cipher;
1003 1.1 jonathan cse->mac = mac;
1004 1.46 darran cse->comp_alg = comp_alg;
1005 1.1 jonathan cse->txform = txform;
1006 1.1 jonathan cse->thash = thash;
1007 1.46 darran cse->tcomp = tcomp;
1008 1.34 tls cse->error = 0;
1009 1.28 tls if (cseadd(fcr, cse))
1010 1.42 christos return cse;
1011 1.28 tls else {
1012 1.33 tls pool_put(&csepl, cse);
1013 1.28 tls return NULL;
1014 1.28 tls }
1015 1.1 jonathan }
1016 1.1 jonathan
1017 1.33 tls /* csefree: call with crypto_mtx held. */
1018 1.1 jonathan static int
1019 1.1 jonathan csefree(struct csession *cse)
1020 1.1 jonathan {
1021 1.1 jonathan int error;
1022 1.1 jonathan
1023 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
1024 1.1 jonathan error = crypto_freesession(cse->sid);
1025 1.1 jonathan if (cse->key)
1026 1.36 tls free(cse->key, M_XDATA);
1027 1.1 jonathan if (cse->mackey)
1028 1.36 tls free(cse->mackey, M_XDATA);
1029 1.29 tls pool_put(&csepl, cse);
1030 1.42 christos return error;
1031 1.1 jonathan }
1032 1.1 jonathan
1033 1.1 jonathan static int
1034 1.25 christos cryptoopen(dev_t dev, int flag, int mode,
1035 1.25 christos struct lwp *l)
1036 1.1 jonathan {
1037 1.35 ad file_t *fp;
1038 1.29 tls struct fcrypt *fcr;
1039 1.29 tls int fd, error;
1040 1.29 tls
1041 1.1 jonathan if (crypto_usercrypto == 0)
1042 1.42 christos return ENXIO;
1043 1.29 tls
1044 1.35 ad if ((error = fd_allocfile(&fp, &fd)) != 0)
1045 1.29 tls return error;
1046 1.29 tls
1047 1.29 tls fcr = pool_get(&fcrpl, PR_WAITOK);
1048 1.48 christos getnanotime(&fcr->btime);
1049 1.48 christos fcr->atime = fcr->mtime = fcr->btime;
1050 1.33 tls mutex_spin_enter(&crypto_mtx);
1051 1.29 tls TAILQ_INIT(&fcr->csessions);
1052 1.36 tls TAILQ_INIT(&fcr->crp_ret_mq);
1053 1.36 tls TAILQ_INIT(&fcr->crp_ret_mkq);
1054 1.36 tls selinit(&fcr->sinfo);
1055 1.29 tls /*
1056 1.29 tls * Don't ever return session 0, to allow detection of
1057 1.29 tls * failed creation attempts with multi-create ioctl.
1058 1.29 tls */
1059 1.29 tls fcr->sesn = 1;
1060 1.36 tls fcr->requestid = 1;
1061 1.33 tls mutex_spin_exit(&crypto_mtx);
1062 1.35 ad return fd_clone(fp, fd, flag, &cryptofops, fcr);
1063 1.1 jonathan }
1064 1.1 jonathan
1065 1.1 jonathan static int
1066 1.25 christos cryptoread(dev_t dev, struct uio *uio, int ioflag)
1067 1.1 jonathan {
1068 1.42 christos return EIO;
1069 1.1 jonathan }
1070 1.1 jonathan
1071 1.1 jonathan static int
1072 1.25 christos cryptowrite(dev_t dev, struct uio *uio, int ioflag)
1073 1.1 jonathan {
1074 1.42 christos return EIO;
1075 1.1 jonathan }
1076 1.1 jonathan
1077 1.1 jonathan int
1078 1.25 christos cryptoselect(dev_t dev, int rw, struct lwp *l)
1079 1.1 jonathan {
1080 1.42 christos return 0;
1081 1.1 jonathan }
1082 1.1 jonathan
1083 1.1 jonathan /*static*/
1084 1.1 jonathan struct cdevsw crypto_cdevsw = {
1085 1.1 jonathan /* open */ cryptoopen,
1086 1.29 tls /* close */ noclose,
1087 1.1 jonathan /* read */ cryptoread,
1088 1.1 jonathan /* write */ cryptowrite,
1089 1.29 tls /* ioctl */ noioctl,
1090 1.1 jonathan /* ttstop?*/ nostop,
1091 1.1 jonathan /* ??*/ notty,
1092 1.1 jonathan /* poll */ cryptoselect /*nopoll*/,
1093 1.1 jonathan /* mmap */ nommap,
1094 1.1 jonathan /* kqfilter */ nokqfilter,
1095 1.23 christos /* type */ D_OTHER,
1096 1.1 jonathan };
1097 1.1 jonathan
1098 1.46 darran int
1099 1.36 tls cryptodev_mop(struct fcrypt *fcr,
1100 1.36 tls struct crypt_n_op * cnop,
1101 1.36 tls int count, struct lwp *l)
1102 1.36 tls {
1103 1.36 tls struct cryptop *crp = NULL;
1104 1.46 darran struct cryptodesc *crde = NULL, *crda = NULL, *crdc = NULL;
1105 1.36 tls int req, error=0;
1106 1.36 tls struct csession *cse;
1107 1.46 darran int flags=0;
1108 1.46 darran int iov_len;
1109 1.36 tls
1110 1.36 tls for (req = 0; req < count; req++) {
1111 1.36 tls mutex_spin_enter(&crypto_mtx);
1112 1.36 tls cse = csefind(fcr, cnop[req].ses);
1113 1.36 tls if (cse == NULL) {
1114 1.36 tls DPRINTF(("csefind failed\n"));
1115 1.36 tls cnop[req].status = EINVAL;
1116 1.36 tls mutex_spin_exit(&crypto_mtx);
1117 1.36 tls continue;
1118 1.36 tls }
1119 1.36 tls mutex_spin_exit(&crypto_mtx);
1120 1.36 tls
1121 1.36 tls if (cnop[req].len > 256*1024-4) {
1122 1.36 tls DPRINTF(("length failed\n"));
1123 1.36 tls cnop[req].status = EINVAL;
1124 1.36 tls continue;
1125 1.36 tls }
1126 1.36 tls if (cse->txform) {
1127 1.36 tls if (cnop[req].len == 0 ||
1128 1.36 tls (cnop[req].len % cse->txform->blocksize) != 0) {
1129 1.36 tls cnop[req].status = EINVAL;
1130 1.36 tls continue;
1131 1.36 tls }
1132 1.36 tls }
1133 1.36 tls
1134 1.42 christos crp = crypto_getreq((cse->txform != NULL) +
1135 1.46 darran (cse->thash != NULL) +
1136 1.46 darran (cse->tcomp != NULL));
1137 1.36 tls if (crp == NULL) {
1138 1.36 tls cnop[req].status = ENOMEM;
1139 1.36 tls goto bail;
1140 1.36 tls }
1141 1.36 tls
1142 1.46 darran iov_len = cnop[req].len;
1143 1.46 darran /* got a compression/decompression max size? */
1144 1.46 darran if ((cse->tcomp) && cnop[req].dst_len) {
1145 1.46 darran if (iov_len < cnop[req].dst_len) {
1146 1.46 darran /* Need larger iov to deal with decompress */
1147 1.46 darran iov_len = cnop[req].dst_len;
1148 1.46 darran }
1149 1.46 darran DPRINTF(("cryptodev_mop: iov_len -> %d for decompress\n", iov_len));
1150 1.46 darran }
1151 1.46 darran
1152 1.42 christos (void)memset(&crp->uio, 0, sizeof(crp->uio));
1153 1.36 tls crp->uio.uio_iovcnt = 1;
1154 1.36 tls crp->uio.uio_resid = 0;
1155 1.36 tls crp->uio.uio_rw = UIO_WRITE;
1156 1.36 tls crp->uio.uio_iov = crp->iovec;
1157 1.36 tls UIO_SETUP_SYSSPACE(&crp->uio);
1158 1.36 tls memset(&crp->iovec, 0, sizeof(crp->iovec));
1159 1.46 darran crp->uio.uio_iov[0].iov_len = iov_len;
1160 1.46 darran DPRINTF(("cryptodev_mop: kmem_alloc(%d) for iov \n", iov_len));
1161 1.46 darran crp->uio.uio_iov[0].iov_base = kmem_alloc(iov_len, KM_SLEEP);
1162 1.36 tls crp->uio.uio_resid = crp->uio.uio_iov[0].iov_len;
1163 1.36 tls
1164 1.46 darran if (cse->tcomp) {
1165 1.46 darran crdc = crp->crp_desc;
1166 1.46 darran }
1167 1.46 darran
1168 1.36 tls if (cse->thash) {
1169 1.46 darran crda = crdc ? crdc->crd_next : crp->crp_desc;
1170 1.44 christos if (cse->txform && crda)
1171 1.36 tls crde = crda->crd_next;
1172 1.36 tls } else {
1173 1.46 darran if (cse->txform) {
1174 1.46 darran crde = crdc ? crdc->crd_next : crp->crp_desc;
1175 1.46 darran } else if (!cse->tcomp) {
1176 1.46 darran error = EINVAL;
1177 1.46 darran goto bail;
1178 1.36 tls }
1179 1.36 tls }
1180 1.36 tls
1181 1.36 tls if ((copyin(cnop[req].src,
1182 1.36 tls crp->uio.uio_iov[0].iov_base, cnop[req].len))) {
1183 1.36 tls cnop[req].status = EINVAL;
1184 1.36 tls goto bail;
1185 1.36 tls }
1186 1.46 darran
1187 1.46 darran if (crdc) {
1188 1.46 darran switch (cnop[req].op) {
1189 1.46 darran case COP_COMP:
1190 1.46 darran crdc->crd_flags |= CRD_F_COMP;
1191 1.46 darran break;
1192 1.46 darran case COP_DECOMP:
1193 1.46 darran crdc->crd_flags &= ~CRD_F_COMP;
1194 1.46 darran break;
1195 1.46 darran default:
1196 1.46 darran break;
1197 1.46 darran }
1198 1.46 darran /* more data to follow? */
1199 1.46 darran if (cnop[req].flags & COP_F_MORE) {
1200 1.46 darran flags |= CRYPTO_F_MORE;
1201 1.46 darran }
1202 1.46 darran crdc->crd_len = cnop[req].len;
1203 1.46 darran crdc->crd_inject = 0;
1204 1.46 darran
1205 1.46 darran crdc->crd_alg = cse->comp_alg;
1206 1.46 darran crdc->crd_key = NULL;
1207 1.46 darran crdc->crd_klen = 0;
1208 1.46 darran DPRINTF(("cryptodev_mop[%d]: crdc setup for comp_alg %d"
1209 1.46 darran " len %d.\n",
1210 1.46 darran (uint32_t)cse->sid, crdc->crd_alg,
1211 1.46 darran crdc->crd_len));
1212 1.46 darran }
1213 1.36 tls
1214 1.36 tls if (crda) {
1215 1.36 tls crda->crd_skip = 0;
1216 1.36 tls crda->crd_len = cnop[req].len;
1217 1.36 tls crda->crd_inject = 0; /* ??? */
1218 1.36 tls
1219 1.36 tls crda->crd_alg = cse->mac;
1220 1.36 tls crda->crd_key = cse->mackey;
1221 1.36 tls crda->crd_klen = cse->mackeylen * 8;
1222 1.36 tls }
1223 1.36 tls
1224 1.36 tls if (crde) {
1225 1.36 tls if (cnop[req].op == COP_ENCRYPT)
1226 1.36 tls crde->crd_flags |= CRD_F_ENCRYPT;
1227 1.36 tls else
1228 1.36 tls crde->crd_flags &= ~CRD_F_ENCRYPT;
1229 1.36 tls crde->crd_len = cnop[req].len;
1230 1.36 tls crde->crd_inject = 0;
1231 1.36 tls
1232 1.36 tls crde->crd_alg = cse->cipher;
1233 1.36 tls #ifdef notyet /* XXX must notify h/w driver new key, drain */
1234 1.36 tls if(cnop[req].key && cnop[req].keylen) {
1235 1.36 tls crde->crd_key = malloc(cnop[req].keylen,
1236 1.36 tls M_XDATA, M_WAITOK);
1237 1.36 tls if((error = copyin(cnop[req].key,
1238 1.36 tls crde->crd_key, cnop[req].keylen))) {
1239 1.36 tls cnop[req].status = EINVAL;
1240 1.36 tls goto bail;
1241 1.36 tls }
1242 1.36 tls crde->crd_klen = cnop[req].keylen * 8;
1243 1.36 tls } else { ... }
1244 1.36 tls #endif
1245 1.36 tls crde->crd_key = cse->key;
1246 1.36 tls crde->crd_klen = cse->keylen * 8;
1247 1.36 tls }
1248 1.36 tls
1249 1.36 tls crp->crp_ilen = cnop[req].len;
1250 1.42 christos crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM |
1251 1.46 darran (cnop[req].flags & COP_F_BATCH) | flags;
1252 1.36 tls crp->crp_buf = (void *)&crp->uio;
1253 1.36 tls crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_mcb;
1254 1.36 tls crp->crp_sid = cse->sid;
1255 1.36 tls crp->crp_opaque = (void *)cse;
1256 1.36 tls crp->fcrp = fcr;
1257 1.36 tls crp->dst = cnop[req].dst;
1258 1.46 darran crp->len = cnop[req].len; /* input len, iov may be larger */
1259 1.36 tls crp->mac = cnop[req].mac;
1260 1.46 darran DPRINTF(("cryptodev_mop: iov_base %p dst %p len %d mac %p\n",
1261 1.46 darran crp->uio.uio_iov[0].iov_base, crp->dst, crp->len,
1262 1.46 darran crp->mac));
1263 1.36 tls
1264 1.36 tls if (cnop[req].iv) {
1265 1.36 tls if (crde == NULL) {
1266 1.36 tls cnop[req].status = EINVAL;
1267 1.36 tls goto bail;
1268 1.36 tls }
1269 1.36 tls if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
1270 1.36 tls cnop[req].status = EINVAL;
1271 1.36 tls goto bail;
1272 1.36 tls }
1273 1.36 tls if ((error = copyin(cnop[req].iv, crp->tmp_iv,
1274 1.36 tls cse->txform->blocksize))) {
1275 1.36 tls cnop[req].status = EINVAL;
1276 1.36 tls goto bail;
1277 1.36 tls }
1278 1.42 christos (void)memcpy(crde->crd_iv, crp->tmp_iv,
1279 1.42 christos cse->txform->blocksize);
1280 1.36 tls crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
1281 1.36 tls crde->crd_skip = 0;
1282 1.36 tls } else if (crde) {
1283 1.36 tls if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
1284 1.36 tls crde->crd_skip = 0;
1285 1.36 tls } else {
1286 1.36 tls crde->crd_flags |= CRD_F_IV_PRESENT;
1287 1.36 tls crde->crd_skip = cse->txform->blocksize;
1288 1.36 tls crde->crd_len -= cse->txform->blocksize;
1289 1.36 tls }
1290 1.36 tls }
1291 1.36 tls
1292 1.36 tls if (cnop[req].mac) {
1293 1.36 tls if (crda == NULL) {
1294 1.36 tls cnop[req].status = EINVAL;
1295 1.36 tls goto bail;
1296 1.36 tls }
1297 1.36 tls crp->crp_mac=cse->tmp_mac;
1298 1.36 tls }
1299 1.36 tls cnop[req].reqid = atomic_inc_32_nv(&(fcr->requestid));
1300 1.36 tls crp->crp_reqid = cnop[req].reqid;
1301 1.36 tls crp->crp_usropaque = cnop[req].opaque;
1302 1.36 tls #ifdef notyet
1303 1.36 tls eagain:
1304 1.36 tls #endif
1305 1.36 tls cnop[req].status = crypto_dispatch(crp);
1306 1.36 tls mutex_spin_enter(&crypto_mtx); /* XXX why mutex? */
1307 1.36 tls
1308 1.36 tls switch (cnop[req].status) {
1309 1.36 tls #ifdef notyet /* don't loop forever -- but EAGAIN not possible here yet */
1310 1.36 tls case EAGAIN:
1311 1.36 tls mutex_spin_exit(&crypto_mtx);
1312 1.36 tls goto eagain;
1313 1.36 tls break;
1314 1.36 tls #endif
1315 1.36 tls case 0:
1316 1.36 tls break;
1317 1.36 tls default:
1318 1.36 tls DPRINTF(("cryptodev_op: not waiting, error.\n"));
1319 1.36 tls mutex_spin_exit(&crypto_mtx);
1320 1.36 tls goto bail;
1321 1.36 tls }
1322 1.36 tls
1323 1.36 tls mutex_spin_exit(&crypto_mtx);
1324 1.36 tls bail:
1325 1.36 tls if (cnop[req].status) {
1326 1.36 tls if (crp) {
1327 1.46 darran if (crp->uio.uio_iov[0].iov_base) {
1328 1.46 darran kmem_free(crp->uio.uio_iov[0].iov_base,
1329 1.46 darran crp->uio.uio_iov[0].iov_len);
1330 1.46 darran }
1331 1.36 tls crypto_freereq(crp);
1332 1.36 tls }
1333 1.36 tls error = 0;
1334 1.36 tls }
1335 1.36 tls }
1336 1.42 christos return error;
1337 1.36 tls }
1338 1.36 tls
1339 1.36 tls static int
1340 1.36 tls cryptodev_mkey(struct fcrypt *fcr, struct crypt_n_kop *kop, int count)
1341 1.36 tls {
1342 1.36 tls struct cryptkop *krp = NULL;
1343 1.36 tls int error = EINVAL;
1344 1.36 tls int in, out, size, i, req;
1345 1.36 tls
1346 1.36 tls for (req = 0; req < count; req++) {
1347 1.42 christos if (kop[req].crk_iparams + kop[req].crk_oparams > CRK_MAXPARAM)
1348 1.42 christos return EFBIG;
1349 1.36 tls
1350 1.36 tls in = kop[req].crk_iparams;
1351 1.36 tls out = kop[req].crk_oparams;
1352 1.36 tls switch (kop[req].crk_op) {
1353 1.36 tls case CRK_MOD_EXP:
1354 1.36 tls if (in == 3 && out == 1)
1355 1.36 tls break;
1356 1.36 tls kop[req].crk_status = EINVAL;
1357 1.36 tls continue;
1358 1.36 tls case CRK_MOD_EXP_CRT:
1359 1.36 tls if (in == 6 && out == 1)
1360 1.36 tls break;
1361 1.36 tls kop[req].crk_status = EINVAL;
1362 1.36 tls continue;
1363 1.36 tls case CRK_DSA_SIGN:
1364 1.36 tls if (in == 5 && out == 2)
1365 1.36 tls break;
1366 1.36 tls kop[req].crk_status = EINVAL;
1367 1.36 tls continue;
1368 1.36 tls case CRK_DSA_VERIFY:
1369 1.36 tls if (in == 7 && out == 0)
1370 1.36 tls break;
1371 1.36 tls kop[req].crk_status = EINVAL;
1372 1.36 tls continue;
1373 1.36 tls case CRK_DH_COMPUTE_KEY:
1374 1.36 tls if (in == 3 && out == 1)
1375 1.36 tls break;
1376 1.36 tls kop[req].crk_status = EINVAL;
1377 1.36 tls continue;
1378 1.36 tls case CRK_MOD_ADD:
1379 1.36 tls if (in == 3 && out == 1)
1380 1.36 tls break;
1381 1.36 tls kop[req].crk_status = EINVAL;
1382 1.36 tls continue;
1383 1.36 tls case CRK_MOD_ADDINV:
1384 1.36 tls if (in == 2 && out == 1)
1385 1.36 tls break;
1386 1.36 tls kop[req].crk_status = EINVAL;
1387 1.36 tls continue;
1388 1.36 tls case CRK_MOD_SUB:
1389 1.36 tls if (in == 3 && out == 1)
1390 1.36 tls break;
1391 1.36 tls kop[req].crk_status = EINVAL;
1392 1.36 tls continue;
1393 1.36 tls case CRK_MOD_MULT:
1394 1.36 tls if (in == 3 && out == 1)
1395 1.36 tls break;
1396 1.36 tls kop[req].crk_status = EINVAL;
1397 1.36 tls continue;
1398 1.36 tls case CRK_MOD_MULTINV:
1399 1.36 tls if (in == 2 && out == 1)
1400 1.36 tls break;
1401 1.36 tls kop[req].crk_status = EINVAL;
1402 1.36 tls continue;
1403 1.36 tls case CRK_MOD:
1404 1.36 tls if (in == 2 && out == 1)
1405 1.36 tls break;
1406 1.36 tls kop[req].crk_status = EINVAL;
1407 1.36 tls continue;
1408 1.36 tls default:
1409 1.36 tls kop[req].crk_status = EINVAL;
1410 1.36 tls continue;
1411 1.36 tls }
1412 1.36 tls
1413 1.36 tls krp = pool_get(&cryptkop_pool, PR_WAITOK);
1414 1.42 christos (void)memset(krp, 0, sizeof *krp);
1415 1.36 tls cv_init(&krp->krp_cv, "crykdev");
1416 1.36 tls krp->krp_op = kop[req].crk_op;
1417 1.36 tls krp->krp_status = kop[req].crk_status;
1418 1.36 tls krp->krp_iparams = kop[req].crk_iparams;
1419 1.36 tls krp->krp_oparams = kop[req].crk_oparams;
1420 1.36 tls krp->krp_status = 0;
1421 1.36 tls krp->krp_callback =
1422 1.36 tls (int (*) (struct cryptkop *)) cryptodevkey_mcb;
1423 1.42 christos (void)memcpy(krp->crk_param, kop[req].crk_param,
1424 1.42 christos sizeof(kop[req].crk_param));
1425 1.36 tls
1426 1.36 tls krp->krp_flags = CRYPTO_F_CBIMM;
1427 1.36 tls
1428 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++)
1429 1.36 tls krp->krp_param[i].crp_nbits =
1430 1.36 tls kop[req].crk_param[i].crp_nbits;
1431 1.36 tls for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
1432 1.36 tls size = (krp->krp_param[i].crp_nbits + 7) / 8;
1433 1.36 tls if (size == 0)
1434 1.36 tls continue;
1435 1.36 tls krp->krp_param[i].crp_p =
1436 1.36 tls kmem_alloc(size, KM_SLEEP);
1437 1.36 tls if (i >= krp->krp_iparams)
1438 1.36 tls continue;
1439 1.42 christos kop[req].crk_status =
1440 1.42 christos copyin(kop[req].crk_param[i].crp_p,
1441 1.42 christos krp->krp_param[i].crp_p, size);
1442 1.36 tls if (kop[req].crk_status)
1443 1.36 tls goto fail;
1444 1.36 tls }
1445 1.36 tls krp->fcrp = fcr;
1446 1.36 tls
1447 1.36 tls kop[req].crk_reqid = atomic_inc_32_nv(&(fcr->requestid));
1448 1.36 tls krp->krp_reqid = kop[req].crk_reqid;
1449 1.36 tls krp->krp_usropaque = kop[req].crk_opaque;
1450 1.36 tls
1451 1.36 tls kop[req].crk_status = crypto_kdispatch(krp);
1452 1.36 tls if (kop[req].crk_status != 0) {
1453 1.36 tls goto fail;
1454 1.36 tls }
1455 1.36 tls
1456 1.36 tls fail:
1457 1.36 tls if(kop[req].crk_status) {
1458 1.36 tls if (krp) {
1459 1.36 tls kop[req].crk_status = krp->krp_status;
1460 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++) {
1461 1.36 tls struct crparam *kp =
1462 1.36 tls &(krp->krp_param[i]);
1463 1.36 tls if (kp->crp_p) {
1464 1.36 tls size = (kp->crp_nbits + 7) / 8;
1465 1.36 tls KASSERT(size > 0);
1466 1.36 tls memset(kp->crp_p, 0, size);
1467 1.36 tls kmem_free(kp->crp_p, size);
1468 1.36 tls }
1469 1.36 tls }
1470 1.45 darran cv_destroy(&krp->krp_cv);
1471 1.36 tls pool_put(&cryptkop_pool, krp);
1472 1.36 tls }
1473 1.36 tls }
1474 1.36 tls error = 0;
1475 1.36 tls }
1476 1.36 tls DPRINTF(("cryptodev_key: error=0x%08x\n", error));
1477 1.42 christos return error;
1478 1.36 tls }
1479 1.36 tls
1480 1.46 darran int
1481 1.45 darran cryptodev_session(struct fcrypt *fcr, struct session_op *sop)
1482 1.45 darran {
1483 1.36 tls struct cryptoini cria, crie;
1484 1.46 darran struct cryptoini cric; /* compressor */
1485 1.46 darran struct cryptoini *crihead = NULL;
1486 1.54 drochner const struct enc_xform *txform = NULL;
1487 1.54 drochner const struct auth_hash *thash = NULL;
1488 1.54 drochner const struct comp_algo *tcomp = NULL;
1489 1.36 tls struct csession *cse;
1490 1.36 tls u_int64_t sid;
1491 1.36 tls int error = 0;
1492 1.36 tls
1493 1.46 darran DPRINTF(("cryptodev_session() cipher=%d, mac=%d\n", sop->cipher, sop->mac));
1494 1.46 darran
1495 1.36 tls /* XXX there must be a way to not embed the list of xforms here */
1496 1.36 tls switch (sop->cipher) {
1497 1.36 tls case 0:
1498 1.36 tls break;
1499 1.36 tls case CRYPTO_DES_CBC:
1500 1.36 tls txform = &enc_xform_des;
1501 1.36 tls break;
1502 1.36 tls case CRYPTO_3DES_CBC:
1503 1.36 tls txform = &enc_xform_3des;
1504 1.36 tls break;
1505 1.36 tls case CRYPTO_BLF_CBC:
1506 1.36 tls txform = &enc_xform_blf;
1507 1.36 tls break;
1508 1.36 tls case CRYPTO_CAST_CBC:
1509 1.36 tls txform = &enc_xform_cast5;
1510 1.52 hubertf break;
1511 1.36 tls case CRYPTO_SKIPJACK_CBC:
1512 1.36 tls txform = &enc_xform_skipjack;
1513 1.36 tls break;
1514 1.36 tls case CRYPTO_AES_CBC:
1515 1.36 tls txform = &enc_xform_rijndael128;
1516 1.36 tls break;
1517 1.36 tls case CRYPTO_NULL_CBC:
1518 1.36 tls txform = &enc_xform_null;
1519 1.36 tls break;
1520 1.36 tls case CRYPTO_ARC4:
1521 1.36 tls txform = &enc_xform_arc4;
1522 1.36 tls break;
1523 1.36 tls default:
1524 1.36 tls DPRINTF(("Invalid cipher %d\n", sop->cipher));
1525 1.36 tls return EINVAL;
1526 1.36 tls }
1527 1.36 tls
1528 1.46 darran switch (sop->comp_alg) {
1529 1.46 darran case 0:
1530 1.46 darran break;
1531 1.46 darran case CRYPTO_DEFLATE_COMP:
1532 1.46 darran tcomp = &comp_algo_deflate;
1533 1.46 darran break;
1534 1.46 darran case CRYPTO_GZIP_COMP:
1535 1.46 darran tcomp = &comp_algo_gzip;
1536 1.46 darran DPRINTF(("cryptodev_session() tcomp for GZIP\n"));
1537 1.46 darran break;
1538 1.46 darran default:
1539 1.46 darran DPRINTF(("Invalid compression alg %d\n", sop->comp_alg));
1540 1.46 darran return EINVAL;
1541 1.46 darran }
1542 1.46 darran
1543 1.36 tls switch (sop->mac) {
1544 1.36 tls case 0:
1545 1.36 tls break;
1546 1.36 tls case CRYPTO_MD5_HMAC:
1547 1.36 tls thash = &auth_hash_hmac_md5;
1548 1.36 tls break;
1549 1.36 tls case CRYPTO_SHA1_HMAC:
1550 1.36 tls thash = &auth_hash_hmac_sha1;
1551 1.36 tls break;
1552 1.36 tls case CRYPTO_MD5_HMAC_96:
1553 1.36 tls thash = &auth_hash_hmac_md5_96;
1554 1.36 tls break;
1555 1.36 tls case CRYPTO_SHA1_HMAC_96:
1556 1.36 tls thash = &auth_hash_hmac_sha1_96;
1557 1.36 tls break;
1558 1.36 tls case CRYPTO_SHA2_HMAC:
1559 1.36 tls /* XXX switching on key length seems questionable */
1560 1.36 tls if (sop->mackeylen == auth_hash_hmac_sha2_256.keysize) {
1561 1.36 tls thash = &auth_hash_hmac_sha2_256;
1562 1.36 tls } else if (sop->mackeylen == auth_hash_hmac_sha2_384.keysize) {
1563 1.36 tls thash = &auth_hash_hmac_sha2_384;
1564 1.36 tls } else if (sop->mackeylen == auth_hash_hmac_sha2_512.keysize) {
1565 1.36 tls thash = &auth_hash_hmac_sha2_512;
1566 1.36 tls } else {
1567 1.36 tls DPRINTF(("Invalid mackeylen %d\n", sop->mackeylen));
1568 1.36 tls return EINVAL;
1569 1.36 tls }
1570 1.36 tls break;
1571 1.36 tls case CRYPTO_RIPEMD160_HMAC:
1572 1.36 tls thash = &auth_hash_hmac_ripemd_160;
1573 1.36 tls break;
1574 1.36 tls case CRYPTO_RIPEMD160_HMAC_96:
1575 1.36 tls thash = &auth_hash_hmac_ripemd_160_96;
1576 1.36 tls break;
1577 1.36 tls case CRYPTO_MD5:
1578 1.36 tls thash = &auth_hash_md5;
1579 1.36 tls break;
1580 1.36 tls case CRYPTO_SHA1:
1581 1.36 tls thash = &auth_hash_sha1;
1582 1.36 tls break;
1583 1.36 tls case CRYPTO_NULL_HMAC:
1584 1.36 tls thash = &auth_hash_null;
1585 1.36 tls break;
1586 1.36 tls default:
1587 1.36 tls DPRINTF(("Invalid mac %d\n", sop->mac));
1588 1.42 christos return EINVAL;
1589 1.36 tls }
1590 1.36 tls
1591 1.36 tls memset(&crie, 0, sizeof(crie));
1592 1.36 tls memset(&cria, 0, sizeof(cria));
1593 1.46 darran memset(&cric, 0, sizeof(cric));
1594 1.46 darran
1595 1.46 darran if (tcomp) {
1596 1.46 darran cric.cri_alg = tcomp->type;
1597 1.46 darran cric.cri_klen = 0;
1598 1.46 darran DPRINTF(("tcomp->type = %d\n", tcomp->type));
1599 1.46 darran
1600 1.46 darran crihead = &cric;
1601 1.46 darran if (thash) {
1602 1.46 darran cric.cri_next = &cria;
1603 1.46 darran } else if (txform) {
1604 1.46 darran cric.cri_next = &crie;
1605 1.46 darran }
1606 1.46 darran }
1607 1.36 tls
1608 1.36 tls if (txform) {
1609 1.36 tls crie.cri_alg = txform->type;
1610 1.36 tls crie.cri_klen = sop->keylen * 8;
1611 1.36 tls if (sop->keylen > txform->maxkey ||
1612 1.36 tls sop->keylen < txform->minkey) {
1613 1.36 tls DPRINTF(("keylen %d not in [%d,%d]\n",
1614 1.42 christos sop->keylen, txform->minkey, txform->maxkey));
1615 1.42 christos error = EINVAL;
1616 1.36 tls goto bail;
1617 1.36 tls }
1618 1.36 tls
1619 1.36 tls crie.cri_key = malloc(crie.cri_klen / 8, M_XDATA, M_WAITOK);
1620 1.42 christos if ((error = copyin(sop->key, crie.cri_key, crie.cri_klen / 8)))
1621 1.36 tls goto bail;
1622 1.46 darran if (!crihead) {
1623 1.46 darran crihead = &crie;
1624 1.46 darran }
1625 1.46 darran }
1626 1.36 tls
1627 1.36 tls if (thash) {
1628 1.36 tls cria.cri_alg = thash->type;
1629 1.36 tls cria.cri_klen = sop->mackeylen * 8;
1630 1.36 tls if (sop->mackeylen != thash->keysize) {
1631 1.36 tls DPRINTF(("mackeylen %d != keysize %d\n",
1632 1.42 christos sop->mackeylen, thash->keysize));
1633 1.36 tls error = EINVAL;
1634 1.36 tls goto bail;
1635 1.36 tls }
1636 1.36 tls if (cria.cri_klen) {
1637 1.36 tls cria.cri_key = malloc(cria.cri_klen / 8, M_XDATA,
1638 1.42 christos M_WAITOK);
1639 1.36 tls if ((error = copyin(sop->mackey, cria.cri_key,
1640 1.42 christos cria.cri_klen / 8))) {
1641 1.36 tls goto bail;
1642 1.36 tls }
1643 1.36 tls }
1644 1.46 darran if (txform)
1645 1.46 darran cria.cri_next = &crie; /* XXX forces enc then hash? */
1646 1.46 darran if (!crihead) {
1647 1.46 darran crihead = &cria;
1648 1.46 darran }
1649 1.36 tls }
1650 1.46 darran
1651 1.36 tls /* crypto_newsession requires that we hold the mutex. */
1652 1.36 tls mutex_spin_enter(&crypto_mtx);
1653 1.46 darran error = crypto_newsession(&sid, crihead, crypto_devallowsoft);
1654 1.36 tls if (!error) {
1655 1.46 darran DPRINTF(("cyrptodev_session: got session %d\n", (uint32_t)sid));
1656 1.36 tls cse = csecreate(fcr, sid, crie.cri_key, crie.cri_klen,
1657 1.46 darran cria.cri_key, cria.cri_klen, (txform ? sop->cipher : 0), sop->mac,
1658 1.46 darran (tcomp ? sop->comp_alg : 0), txform, thash, tcomp);
1659 1.36 tls if (cse != NULL) {
1660 1.36 tls sop->ses = cse->ses;
1661 1.36 tls } else {
1662 1.36 tls DPRINTF(("csecreate failed\n"));
1663 1.36 tls crypto_freesession(sid);
1664 1.36 tls error = EINVAL;
1665 1.36 tls }
1666 1.36 tls } else {
1667 1.36 tls DPRINTF(("SIOCSESSION violates kernel parameters %d\n",
1668 1.42 christos error));
1669 1.36 tls }
1670 1.36 tls mutex_spin_exit(&crypto_mtx);
1671 1.36 tls bail:
1672 1.36 tls if (error) {
1673 1.36 tls if (crie.cri_key) {
1674 1.36 tls memset(crie.cri_key, 0, crie.cri_klen / 8);
1675 1.36 tls free(crie.cri_key, M_XDATA);
1676 1.36 tls }
1677 1.36 tls if (cria.cri_key) {
1678 1.36 tls memset(cria.cri_key, 0, cria.cri_klen / 8);
1679 1.36 tls free(cria.cri_key, M_XDATA);
1680 1.36 tls }
1681 1.36 tls }
1682 1.36 tls return error;
1683 1.36 tls }
1684 1.36 tls
1685 1.46 darran int
1686 1.36 tls cryptodev_msession(struct fcrypt *fcr, struct session_n_op *sn_ops,
1687 1.36 tls int count)
1688 1.36 tls {
1689 1.36 tls int i;
1690 1.36 tls
1691 1.36 tls for (i = 0; i < count; i++, sn_ops++) {
1692 1.36 tls struct session_op s_op;
1693 1.36 tls s_op.cipher = sn_ops->cipher;
1694 1.36 tls s_op.mac = sn_ops->mac;
1695 1.36 tls s_op.keylen = sn_ops->keylen;
1696 1.36 tls s_op.key = sn_ops->key;
1697 1.36 tls s_op.mackeylen = sn_ops->mackeylen;
1698 1.36 tls s_op.mackey = sn_ops->mackey;
1699 1.36 tls
1700 1.36 tls sn_ops->status = cryptodev_session(fcr, &s_op);
1701 1.36 tls sn_ops->ses = s_op.ses;
1702 1.36 tls }
1703 1.36 tls
1704 1.36 tls return 0;
1705 1.36 tls }
1706 1.36 tls
1707 1.36 tls static int
1708 1.36 tls cryptodev_msessionfin(struct fcrypt *fcr, int count, u_int32_t *sesid)
1709 1.36 tls {
1710 1.36 tls struct csession *cse;
1711 1.36 tls int req, error = 0;
1712 1.36 tls
1713 1.36 tls mutex_spin_enter(&crypto_mtx);
1714 1.36 tls for(req = 0; req < count; req++) {
1715 1.36 tls cse = csefind(fcr, sesid[req]);
1716 1.36 tls if (cse == NULL)
1717 1.36 tls continue;
1718 1.36 tls csedelete(fcr, cse);
1719 1.36 tls error = csefree(cse);
1720 1.36 tls }
1721 1.36 tls mutex_spin_exit(&crypto_mtx);
1722 1.36 tls return 0;
1723 1.36 tls }
1724 1.36 tls
1725 1.36 tls /*
1726 1.42 christos * collect as many completed requests as are availble, or count completed
1727 1.42 christos * requests whichever is less.
1728 1.36 tls * return the number of requests.
1729 1.36 tls */
1730 1.36 tls static int
1731 1.36 tls cryptodev_getmstatus(struct fcrypt *fcr, struct crypt_result *crypt_res,
1732 1.42 christos int count)
1733 1.36 tls {
1734 1.36 tls struct cryptop *crp = NULL;
1735 1.36 tls struct cryptkop *krp = NULL;
1736 1.36 tls struct csession *cse;
1737 1.36 tls int i, size, req = 0;
1738 1.36 tls int completed=0;
1739 1.36 tls
1740 1.46 darran /* On queue so nobody else can grab them
1741 1.46 darran * and copyout can be delayed-- no locking */
1742 1.46 darran TAILQ_HEAD(, cryptop) crp_delfree_q =
1743 1.46 darran TAILQ_HEAD_INITIALIZER(crp_delfree_q);
1744 1.46 darran TAILQ_HEAD(, cryptkop) krp_delfree_q =
1745 1.46 darran TAILQ_HEAD_INITIALIZER(krp_delfree_q);
1746 1.36 tls
1747 1.36 tls /* at this point we do not know which response user is requesting for
1748 1.36 tls * (symmetric or asymmetric) so we copyout one from each i.e if the
1749 1.36 tls * count is 2 then 1 from symmetric and 1 from asymmetric queue and
1750 1.36 tls * if 3 then 2 symmetric and 1 asymmetric and so on */
1751 1.46 darran
1752 1.46 darran /* pull off a list of requests while protected from changes */
1753 1.46 darran mutex_spin_enter(&crypto_mtx);
1754 1.46 darran while (req < count) {
1755 1.36 tls crp = TAILQ_FIRST(&fcr->crp_ret_mq);
1756 1.46 darran if (crp) {
1757 1.46 darran TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
1758 1.46 darran TAILQ_INSERT_TAIL(&crp_delfree_q, crp, crp_next);
1759 1.36 tls cse = (struct csession *)crp->crp_opaque;
1760 1.46 darran
1761 1.46 darran /* see if the session is still valid */
1762 1.36 tls cse = csefind(fcr, cse->ses);
1763 1.46 darran if (cse != NULL) {
1764 1.46 darran crypt_res[req].status = 0;
1765 1.46 darran } else {
1766 1.36 tls DPRINTF(("csefind failed\n"));
1767 1.36 tls crypt_res[req].status = EINVAL;
1768 1.46 darran }
1769 1.46 darran req++;
1770 1.46 darran }
1771 1.46 darran if(req < count) {
1772 1.46 darran crypt_res[req].status = 0;
1773 1.46 darran krp = TAILQ_FIRST(&fcr->crp_ret_mkq);
1774 1.46 darran if (krp) {
1775 1.46 darran TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
1776 1.46 darran TAILQ_INSERT_TAIL(&krp_delfree_q, krp, krp_next);
1777 1.46 darran req++;
1778 1.46 darran }
1779 1.46 darran }
1780 1.46 darran }
1781 1.46 darran mutex_spin_exit(&crypto_mtx);
1782 1.46 darran
1783 1.46 darran /* now do all the work outside the mutex */
1784 1.46 darran for(req=0; req < count ;) {
1785 1.46 darran crp = TAILQ_FIRST(&crp_delfree_q);
1786 1.46 darran if (crp) {
1787 1.46 darran if (crypt_res[req].status != 0) {
1788 1.46 darran /* csefind failed during collection */
1789 1.36 tls goto bail;
1790 1.36 tls }
1791 1.46 darran cse = (struct csession *)crp->crp_opaque;
1792 1.46 darran crypt_res[req].reqid = crp->crp_reqid;
1793 1.46 darran crypt_res[req].opaque = crp->crp_usropaque;
1794 1.46 darran completed++;
1795 1.36 tls
1796 1.36 tls if (crp->crp_etype != 0) {
1797 1.36 tls crypt_res[req].status = crp->crp_etype;
1798 1.36 tls goto bail;
1799 1.36 tls }
1800 1.36 tls
1801 1.36 tls if (cse->error) {
1802 1.36 tls crypt_res[req].status = cse->error;
1803 1.36 tls goto bail;
1804 1.36 tls }
1805 1.36 tls
1806 1.42 christos if (crp->dst && (crypt_res[req].status =
1807 1.42 christos copyout(crp->uio.uio_iov[0].iov_base, crp->dst,
1808 1.42 christos crp->len)))
1809 1.36 tls goto bail;
1810 1.36 tls
1811 1.42 christos if (crp->mac && (crypt_res[req].status =
1812 1.42 christos copyout(crp->crp_mac, crp->mac,
1813 1.42 christos cse->thash->authsize)))
1814 1.36 tls goto bail;
1815 1.46 darran
1816 1.36 tls bail:
1817 1.46 darran TAILQ_REMOVE(&crp_delfree_q, crp, crp_next);
1818 1.46 darran kmem_free(crp->uio.uio_iov[0].iov_base,
1819 1.46 darran crp->uio.uio_iov[0].iov_len);
1820 1.46 darran crypto_freereq(crp);
1821 1.36 tls req++;
1822 1.36 tls }
1823 1.36 tls
1824 1.46 darran if (req < count) {
1825 1.46 darran krp = TAILQ_FIRST(&krp_delfree_q);
1826 1.36 tls if (krp) {
1827 1.36 tls crypt_res[req].reqid = krp->krp_reqid;
1828 1.36 tls crypt_res[req].opaque = krp->krp_usropaque;
1829 1.36 tls completed++;
1830 1.36 tls if (krp->krp_status != 0) {
1831 1.36 tls DPRINTF(("cryptodev_key: "
1832 1.42 christos "krp->krp_status 0x%08x\n",
1833 1.42 christos krp->krp_status));
1834 1.42 christos crypt_res[req].status = krp->krp_status;
1835 1.36 tls goto fail;
1836 1.36 tls }
1837 1.36 tls
1838 1.36 tls for (i = krp->krp_iparams; i < krp->krp_iparams
1839 1.42 christos + krp->krp_oparams; i++) {
1840 1.36 tls size = (krp->krp_param[i].crp_nbits
1841 1.42 christos + 7) / 8;
1842 1.36 tls if (size == 0)
1843 1.36 tls continue;
1844 1.36 tls crypt_res[req].status = copyout
1845 1.36 tls (krp->krp_param[i].crp_p,
1846 1.36 tls krp->crk_param[i].crp_p, size);
1847 1.36 tls if (crypt_res[req].status) {
1848 1.36 tls DPRINTF(("cryptodev_key: "
1849 1.42 christos "copyout oparam %d failed, "
1850 1.42 christos "error=%d\n",
1851 1.42 christos i - krp->krp_iparams,
1852 1.42 christos crypt_res[req].status));
1853 1.36 tls goto fail;
1854 1.36 tls }
1855 1.36 tls }
1856 1.36 tls fail:
1857 1.46 darran TAILQ_REMOVE(&krp_delfree_q, krp, krp_next);
1858 1.36 tls /* not sure what to do for this */
1859 1.36 tls /* kop[req].crk_status = krp->krp_status; */
1860 1.46 darran for (i = 0; i < CRK_MAXPARAM; i++) {
1861 1.46 darran struct crparam *kp = &(krp->krp_param[i]);
1862 1.46 darran if (kp->crp_p) {
1863 1.46 darran size = (kp->crp_nbits + 7) / 8;
1864 1.46 darran KASSERT(size > 0);
1865 1.46 darran (void)memset(kp->crp_p, 0, size);
1866 1.46 darran kmem_free(kp->crp_p, size);
1867 1.46 darran }
1868 1.46 darran }
1869 1.46 darran cv_destroy(&krp->krp_cv);
1870 1.46 darran pool_put(&cryptkop_pool, krp);
1871 1.46 darran req++;
1872 1.36 tls }
1873 1.36 tls }
1874 1.36 tls }
1875 1.36 tls
1876 1.36 tls return completed;
1877 1.36 tls }
1878 1.36 tls
1879 1.36 tls static int
1880 1.36 tls cryptodev_getstatus (struct fcrypt *fcr, struct crypt_result *crypt_res)
1881 1.36 tls {
1882 1.45 darran struct cryptop *crp = NULL, *cnext;
1883 1.45 darran struct cryptkop *krp = NULL, *knext;
1884 1.36 tls struct csession *cse;
1885 1.36 tls int i, size, req = 0;
1886 1.36 tls
1887 1.36 tls mutex_spin_enter(&crypto_mtx);
1888 1.36 tls /* Here we dont know for which request the user is requesting the
1889 1.36 tls * response so checking in both the queues */
1890 1.45 darran TAILQ_FOREACH_SAFE(crp, &fcr->crp_ret_mq, crp_next, cnext) {
1891 1.36 tls if(crp && (crp->crp_reqid == crypt_res->reqid)) {
1892 1.36 tls cse = (struct csession *)crp->crp_opaque;
1893 1.36 tls crypt_res->opaque = crp->crp_usropaque;
1894 1.36 tls cse = csefind(fcr, cse->ses);
1895 1.36 tls if (cse == NULL) {
1896 1.36 tls DPRINTF(("csefind failed\n"));
1897 1.36 tls crypt_res->status = EINVAL;
1898 1.36 tls goto bail;
1899 1.36 tls }
1900 1.36 tls
1901 1.36 tls if (crp->crp_etype != 0) {
1902 1.36 tls crypt_res->status = crp->crp_etype;
1903 1.36 tls goto bail;
1904 1.36 tls }
1905 1.36 tls
1906 1.36 tls if (cse->error) {
1907 1.36 tls crypt_res->status = cse->error;
1908 1.36 tls goto bail;
1909 1.36 tls }
1910 1.36 tls
1911 1.42 christos if (crp->dst && (crypt_res->status =
1912 1.42 christos copyout(crp->uio.uio_iov[0].iov_base,
1913 1.42 christos crp->dst, crp->len)))
1914 1.36 tls goto bail;
1915 1.36 tls
1916 1.42 christos if (crp->mac && (crypt_res->status =
1917 1.42 christos copyout(crp->crp_mac, crp->mac,
1918 1.42 christos cse->thash->authsize)))
1919 1.36 tls goto bail;
1920 1.36 tls bail:
1921 1.36 tls TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
1922 1.36 tls
1923 1.36 tls mutex_spin_exit(&crypto_mtx);
1924 1.36 tls crypto_freereq(crp);
1925 1.36 tls return 0;
1926 1.36 tls }
1927 1.36 tls }
1928 1.36 tls
1929 1.45 darran TAILQ_FOREACH_SAFE(krp, &fcr->crp_ret_mkq, krp_next, knext) {
1930 1.36 tls if(krp && (krp->krp_reqid == crypt_res->reqid)) {
1931 1.36 tls crypt_res[req].opaque = krp->krp_usropaque;
1932 1.36 tls if (krp->krp_status != 0) {
1933 1.36 tls DPRINTF(("cryptodev_key: "
1934 1.42 christos "krp->krp_status 0x%08x\n",
1935 1.42 christos krp->krp_status));
1936 1.36 tls crypt_res[req].status = krp->krp_status;
1937 1.36 tls goto fail;
1938 1.36 tls }
1939 1.36 tls
1940 1.42 christos for (i = krp->krp_iparams; i < krp->krp_iparams +
1941 1.42 christos krp->krp_oparams; i++) {
1942 1.36 tls size = (krp->krp_param[i].crp_nbits + 7) / 8;
1943 1.36 tls if (size == 0)
1944 1.36 tls continue;
1945 1.42 christos crypt_res[req].status = copyout(
1946 1.42 christos krp->krp_param[i].crp_p,
1947 1.42 christos krp->crk_param[i].crp_p, size);
1948 1.36 tls if (crypt_res[req].status) {
1949 1.36 tls DPRINTF(("cryptodev_key: copyout oparam"
1950 1.42 christos "%d failed, error=%d\n",
1951 1.42 christos i - krp->krp_iparams,
1952 1.42 christos crypt_res[req].status));
1953 1.36 tls goto fail;
1954 1.36 tls }
1955 1.36 tls }
1956 1.36 tls fail:
1957 1.36 tls TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
1958 1.36 tls mutex_spin_exit(&crypto_mtx);
1959 1.36 tls /* not sure what to do for this */
1960 1.36 tls /* kop[req].crk_status = krp->krp_status; */
1961 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++) {
1962 1.36 tls struct crparam *kp = &(krp->krp_param[i]);
1963 1.36 tls if (kp->crp_p) {
1964 1.36 tls size = (kp->crp_nbits + 7) / 8;
1965 1.36 tls KASSERT(size > 0);
1966 1.36 tls memset(kp->crp_p, 0, size);
1967 1.36 tls kmem_free(kp->crp_p, size);
1968 1.36 tls }
1969 1.36 tls }
1970 1.45 darran cv_destroy(&krp->krp_cv);
1971 1.36 tls pool_put(&cryptkop_pool, krp);
1972 1.36 tls return 0;
1973 1.36 tls }
1974 1.36 tls }
1975 1.36 tls mutex_spin_exit(&crypto_mtx);
1976 1.36 tls return EINPROGRESS;
1977 1.36 tls }
1978 1.36 tls
1979 1.36 tls static int
1980 1.48 christos cryptof_stat(struct file *fp, struct stat *st)
1981 1.48 christos {
1982 1.48 christos struct fcrypt *fcr = fp->f_data;
1983 1.48 christos
1984 1.48 christos (void)memset(st, 0, sizeof(st));
1985 1.49 christos
1986 1.49 christos mutex_spin_enter(&crypto_mtx);
1987 1.48 christos st->st_dev = makedev(cdevsw_lookup_major(&crypto_cdevsw), fcr->sesn);
1988 1.48 christos st->st_atimespec = fcr->atime;
1989 1.48 christos st->st_mtimespec = fcr->mtime;
1990 1.48 christos st->st_ctimespec = st->st_birthtimespec = fcr->btime;
1991 1.49 christos st->st_uid = kauth_cred_geteuid(fp->f_cred);
1992 1.49 christos st->st_gid = kauth_cred_getegid(fp->f_cred);
1993 1.49 christos mutex_spin_exit(&crypto_mtx);
1994 1.49 christos
1995 1.48 christos return 0;
1996 1.48 christos }
1997 1.48 christos
1998 1.48 christos static int
1999 1.36 tls cryptof_poll(struct file *fp, int events)
2000 1.36 tls {
2001 1.36 tls struct fcrypt *fcr = (struct fcrypt *)fp->f_data;
2002 1.38 rmind int revents = 0;
2003 1.36 tls
2004 1.36 tls if (!(events & (POLLIN | POLLRDNORM))) {
2005 1.36 tls /* only support read and POLLIN */
2006 1.36 tls return 0;
2007 1.36 tls }
2008 1.36 tls
2009 1.38 rmind mutex_spin_enter(&crypto_mtx);
2010 1.36 tls if (TAILQ_EMPTY(&fcr->crp_ret_mq) && TAILQ_EMPTY(&fcr->crp_ret_mkq)) {
2011 1.38 rmind /* no completed requests pending, save the poll for later */
2012 1.36 tls selrecord(curlwp, &fcr->sinfo);
2013 1.36 tls } else {
2014 1.36 tls /* let the app(s) know that there are completed requests */
2015 1.38 rmind revents = events & (POLLIN | POLLRDNORM);
2016 1.36 tls }
2017 1.38 rmind mutex_spin_exit(&crypto_mtx);
2018 1.38 rmind
2019 1.38 rmind return revents;
2020 1.36 tls }
2021 1.36 tls
2022 1.15 thorpej /*
2023 1.15 thorpej * Pseudo-device initialization routine for /dev/crypto
2024 1.15 thorpej */
2025 1.15 thorpej void cryptoattach(int);
2026 1.15 thorpej
2027 1.15 thorpej void
2028 1.25 christos cryptoattach(int num)
2029 1.15 thorpej {
2030 1.29 tls pool_init(&fcrpl, sizeof(struct fcrypt), 0, 0, 0, "fcrpl",
2031 1.42 christos NULL, IPL_NET); /* XXX IPL_NET ("splcrypto") */
2032 1.29 tls pool_init(&csepl, sizeof(struct csession), 0, 0, 0, "csepl",
2033 1.42 christos NULL, IPL_NET); /* XXX IPL_NET ("splcrypto") */
2034 1.29 tls
2035 1.29 tls /*
2036 1.29 tls * Preallocate space for 64 users, with 5 sessions each.
2037 1.29 tls * (consider that a TLS protocol session requires at least
2038 1.29 tls * 3DES, MD5, and SHA1 (both hashes are used in the PRF) for
2039 1.29 tls * the negotiation, plus HMAC_SHA1 for the actual SSL records,
2040 1.29 tls * consuming one session here for each algorithm.
2041 1.29 tls */
2042 1.29 tls pool_prime(&fcrpl, 64);
2043 1.29 tls pool_prime(&csepl, 64 * 5);
2044 1.15 thorpej }
2045