cryptodev.c revision 1.85 1 1.85 msaitoh /* $NetBSD: cryptodev.c,v 1.85 2016/07/07 06:55:43 msaitoh 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 1.85 msaitoh __KERNEL_RCSID(0, "$NetBSD: cryptodev.c,v 1.85 2016/07/07 06:55:43 msaitoh 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 1.70 pgoyette #include <sys/module.h>
89 1.1 jonathan
90 1.70 pgoyette #ifdef _KERNEL_OPT
91 1.33 tls #include "opt_ocf.h"
92 1.55 drochner #include "opt_compat_netbsd.h"
93 1.70 pgoyette #endif
94 1.70 pgoyette
95 1.1 jonathan #include <opencrypto/cryptodev.h>
96 1.55 drochner #include <opencrypto/cryptodev_internal.h>
97 1.1 jonathan #include <opencrypto/xform.h>
98 1.1 jonathan
99 1.84 christos #include "ioconf.h"
100 1.84 christos
101 1.1 jonathan struct csession {
102 1.1 jonathan TAILQ_ENTRY(csession) next;
103 1.1 jonathan u_int64_t sid;
104 1.1 jonathan u_int32_t ses;
105 1.1 jonathan
106 1.46 darran u_int32_t cipher; /* note: shares name space in crd_alg */
107 1.54 drochner const struct enc_xform *txform;
108 1.46 darran u_int32_t mac; /* note: shares name space in crd_alg */
109 1.54 drochner const struct auth_hash *thash;
110 1.46 darran u_int32_t comp_alg; /* note: shares name space in crd_alg */
111 1.54 drochner const struct comp_algo *tcomp;
112 1.1 jonathan
113 1.26 christos void * key;
114 1.1 jonathan int keylen;
115 1.1 jonathan u_char tmp_iv[EALG_MAX_BLOCK_LEN];
116 1.1 jonathan
117 1.26 christos void * mackey;
118 1.1 jonathan int mackeylen;
119 1.1 jonathan u_char tmp_mac[CRYPTO_MAX_MAC_LEN];
120 1.1 jonathan
121 1.29 tls struct iovec iovec[1]; /* user requests never have more */
122 1.1 jonathan struct uio uio;
123 1.1 jonathan int error;
124 1.1 jonathan };
125 1.1 jonathan
126 1.1 jonathan struct fcrypt {
127 1.1 jonathan TAILQ_HEAD(csessionlist, csession) csessions;
128 1.36 tls TAILQ_HEAD(crprethead, cryptop) crp_ret_mq;
129 1.36 tls TAILQ_HEAD(krprethead, cryptkop) crp_ret_mkq;
130 1.1 jonathan int sesn;
131 1.36 tls struct selinfo sinfo;
132 1.36 tls u_int32_t requestid;
133 1.48 christos struct timespec atime;
134 1.48 christos struct timespec mtime;
135 1.48 christos struct timespec btime;
136 1.1 jonathan };
137 1.1 jonathan
138 1.29 tls /* For our fixed-size allocations */
139 1.38 rmind static struct pool fcrpl;
140 1.38 rmind static struct pool csepl;
141 1.1 jonathan
142 1.1 jonathan /* Declaration of master device (fd-cloning/ctxt-allocating) entrypoints */
143 1.16 christos static int cryptoopen(dev_t dev, int flag, int mode, struct lwp *l);
144 1.1 jonathan static int cryptoread(dev_t dev, struct uio *uio, int ioflag);
145 1.1 jonathan static int cryptowrite(dev_t dev, struct uio *uio, int ioflag);
146 1.16 christos static int cryptoselect(dev_t dev, int rw, struct lwp *l);
147 1.1 jonathan
148 1.74 pgoyette static int crypto_refcount = 0; /* Prevent detaching while in use */
149 1.74 pgoyette
150 1.1 jonathan /* Declaration of cloned-device (per-ctxt) entrypoints */
151 1.36 tls static int cryptof_read(struct file *, off_t *, struct uio *,
152 1.42 christos kauth_cred_t, int);
153 1.36 tls static int cryptof_write(struct file *, off_t *, struct uio *,
154 1.42 christos kauth_cred_t, int);
155 1.36 tls static int cryptof_ioctl(struct file *, u_long, void *);
156 1.36 tls static int cryptof_close(struct file *);
157 1.36 tls static int cryptof_poll(struct file *, int);
158 1.48 christos static int cryptof_stat(struct file *, struct stat *);
159 1.1 jonathan
160 1.12 christos static const struct fileops cryptofops = {
161 1.47 ad .fo_read = cryptof_read,
162 1.47 ad .fo_write = cryptof_write,
163 1.47 ad .fo_ioctl = cryptof_ioctl,
164 1.47 ad .fo_fcntl = fnullop_fcntl,
165 1.47 ad .fo_poll = cryptof_poll,
166 1.48 christos .fo_stat = cryptof_stat,
167 1.47 ad .fo_close = cryptof_close,
168 1.47 ad .fo_kqfilter = fnullop_kqfilter,
169 1.51 dsl .fo_restart = fnullop_restart,
170 1.1 jonathan };
171 1.1 jonathan
172 1.46 darran struct csession *cryptodev_csefind(struct fcrypt *, u_int);
173 1.1 jonathan static struct csession *csefind(struct fcrypt *, u_int);
174 1.1 jonathan static int csedelete(struct fcrypt *, struct csession *);
175 1.1 jonathan static struct csession *cseadd(struct fcrypt *, struct csession *);
176 1.42 christos static struct csession *csecreate(struct fcrypt *, u_int64_t, void *,
177 1.46 darran u_int64_t, void *, u_int64_t, u_int32_t, u_int32_t, u_int32_t,
178 1.54 drochner const struct enc_xform *, const struct auth_hash *,
179 1.54 drochner const struct comp_algo *);
180 1.1 jonathan static int csefree(struct csession *);
181 1.1 jonathan
182 1.1 jonathan static int cryptodev_key(struct crypt_kop *);
183 1.36 tls static int cryptodev_mkey(struct fcrypt *, struct crypt_n_kop *, int);
184 1.36 tls static int cryptodev_msessionfin(struct fcrypt *, int, u_int32_t *);
185 1.1 jonathan
186 1.1 jonathan static int cryptodev_cb(void *);
187 1.1 jonathan static int cryptodevkey_cb(void *);
188 1.1 jonathan
189 1.36 tls static int cryptodev_mcb(void *);
190 1.36 tls static int cryptodevkey_mcb(void *);
191 1.36 tls
192 1.36 tls static int cryptodev_getmstatus(struct fcrypt *, struct crypt_result *,
193 1.42 christos int);
194 1.36 tls static int cryptodev_getstatus(struct fcrypt *, struct crypt_result *);
195 1.36 tls
196 1.55 drochner #ifdef COMPAT_50
197 1.46 darran extern int ocryptof_ioctl(struct file *, u_long, void *);
198 1.55 drochner #endif
199 1.46 darran
200 1.9 jonathan /*
201 1.9 jonathan * sysctl-able control variables for /dev/crypto now defined in crypto.c:
202 1.9 jonathan * crypto_usercrypto, crypto_userasmcrypto, crypto_devallowsoft.
203 1.9 jonathan */
204 1.1 jonathan
205 1.1 jonathan /* ARGSUSED */
206 1.1 jonathan int
207 1.35 ad cryptof_read(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 1.35 ad cryptof_write(file_t *fp, off_t *poff,
216 1.25 christos struct uio *uio, kauth_cred_t cred, int flags)
217 1.1 jonathan {
218 1.42 christos return EIO;
219 1.1 jonathan }
220 1.1 jonathan
221 1.1 jonathan /* ARGSUSED */
222 1.1 jonathan int
223 1.36 tls cryptof_ioctl(struct file *fp, u_long cmd, void *data)
224 1.1 jonathan {
225 1.81 matt struct fcrypt *fcr = fp->f_fcrypt;
226 1.1 jonathan struct csession *cse;
227 1.1 jonathan struct session_op *sop;
228 1.36 tls struct session_n_op *snop;
229 1.1 jonathan struct crypt_op *cop;
230 1.36 tls struct crypt_mop *mop;
231 1.36 tls struct crypt_mkop *mkop;
232 1.36 tls struct crypt_n_op *cnop;
233 1.36 tls struct crypt_n_kop *knop;
234 1.36 tls struct crypt_sgop *sgop;
235 1.36 tls struct crypt_sfop *sfop;
236 1.36 tls struct cryptret *crypt_ret;
237 1.36 tls struct crypt_result *crypt_res;
238 1.1 jonathan u_int32_t ses;
239 1.36 tls u_int32_t *sesid;
240 1.1 jonathan int error = 0;
241 1.36 tls size_t count;
242 1.1 jonathan
243 1.29 tls /* backwards compatibility */
244 1.35 ad file_t *criofp;
245 1.29 tls struct fcrypt *criofcr;
246 1.29 tls int criofd;
247 1.29 tls
248 1.57 drochner mutex_enter(&crypto_mtx);
249 1.48 christos getnanotime(&fcr->atime);
250 1.57 drochner mutex_exit(&crypto_mtx);
251 1.48 christos
252 1.36 tls switch (cmd) {
253 1.29 tls case CRIOGET: /* XXX deprecated, remove after 5.0 */
254 1.36 tls if ((error = fd_allocfile(&criofp, &criofd)) != 0)
255 1.36 tls return error;
256 1.36 tls criofcr = pool_get(&fcrpl, PR_WAITOK);
257 1.57 drochner mutex_enter(&crypto_mtx);
258 1.36 tls TAILQ_INIT(&criofcr->csessions);
259 1.36 tls TAILQ_INIT(&criofcr->crp_ret_mq);
260 1.36 tls TAILQ_INIT(&criofcr->crp_ret_mkq);
261 1.36 tls selinit(&criofcr->sinfo);
262 1.36 tls
263 1.29 tls /*
264 1.29 tls * Don't ever return session 0, to allow detection of
265 1.29 tls * failed creation attempts with multi-create ioctl.
266 1.29 tls */
267 1.36 tls criofcr->sesn = 1;
268 1.36 tls criofcr->requestid = 1;
269 1.74 pgoyette crypto_refcount++;
270 1.57 drochner mutex_exit(&crypto_mtx);
271 1.36 tls (void)fd_clone(criofp, criofd, (FREAD|FWRITE),
272 1.29 tls &cryptofops, criofcr);
273 1.36 tls *(u_int32_t *)data = criofd;
274 1.29 tls return error;
275 1.36 tls break;
276 1.1 jonathan case CIOCGSESSION:
277 1.1 jonathan sop = (struct session_op *)data;
278 1.36 tls error = cryptodev_session(fcr, sop);
279 1.36 tls break;
280 1.36 tls case CIOCNGSESSION:
281 1.36 tls sgop = (struct crypt_sgop *)data;
282 1.36 tls snop = kmem_alloc((sgop->count *
283 1.36 tls sizeof(struct session_n_op)), KM_SLEEP);
284 1.36 tls error = copyin(sgop->sessions, snop, sgop->count *
285 1.36 tls sizeof(struct session_n_op));
286 1.36 tls if (error) {
287 1.36 tls goto mbail;
288 1.1 jonathan }
289 1.1 jonathan
290 1.57 drochner mutex_enter(&crypto_mtx);
291 1.48 christos fcr->mtime = fcr->atime;
292 1.57 drochner mutex_exit(&crypto_mtx);
293 1.36 tls error = cryptodev_msession(fcr, snop, sgop->count);
294 1.36 tls if (error) {
295 1.36 tls goto mbail;
296 1.1 jonathan }
297 1.1 jonathan
298 1.36 tls error = copyout(snop, sgop->sessions, sgop->count *
299 1.42 christos sizeof(struct session_n_op));
300 1.36 tls mbail:
301 1.39 tls kmem_free(snop, sgop->count * sizeof(struct session_n_op));
302 1.1 jonathan break;
303 1.1 jonathan case CIOCFSESSION:
304 1.57 drochner mutex_enter(&crypto_mtx);
305 1.48 christos fcr->mtime = fcr->atime;
306 1.1 jonathan ses = *(u_int32_t *)data;
307 1.1 jonathan cse = csefind(fcr, ses);
308 1.56 drochner if (cse == NULL) {
309 1.57 drochner mutex_exit(&crypto_mtx);
310 1.42 christos return EINVAL;
311 1.56 drochner }
312 1.1 jonathan csedelete(fcr, cse);
313 1.57 drochner mutex_exit(&crypto_mtx);
314 1.1 jonathan error = csefree(cse);
315 1.1 jonathan break;
316 1.36 tls case CIOCNFSESSION:
317 1.57 drochner mutex_enter(&crypto_mtx);
318 1.48 christos fcr->mtime = fcr->atime;
319 1.57 drochner mutex_exit(&crypto_mtx);
320 1.36 tls sfop = (struct crypt_sfop *)data;
321 1.36 tls sesid = kmem_alloc((sfop->count * sizeof(u_int32_t)),
322 1.42 christos KM_SLEEP);
323 1.42 christos error = copyin(sfop->sesid, sesid,
324 1.42 christos (sfop->count * sizeof(u_int32_t)));
325 1.36 tls if (!error) {
326 1.36 tls error = cryptodev_msessionfin(fcr, sfop->count, sesid);
327 1.36 tls }
328 1.36 tls kmem_free(sesid, (sfop->count * sizeof(u_int32_t)));
329 1.36 tls break;
330 1.1 jonathan case CIOCCRYPT:
331 1.57 drochner mutex_enter(&crypto_mtx);
332 1.48 christos fcr->mtime = fcr->atime;
333 1.1 jonathan cop = (struct crypt_op *)data;
334 1.1 jonathan cse = csefind(fcr, cop->ses);
335 1.57 drochner mutex_exit(&crypto_mtx);
336 1.18 christos if (cse == NULL) {
337 1.18 christos DPRINTF(("csefind failed\n"));
338 1.42 christos return EINVAL;
339 1.18 christos }
340 1.35 ad error = cryptodev_op(cse, cop, curlwp);
341 1.34 tls DPRINTF(("cryptodev_op error = %d\n", error));
342 1.1 jonathan break;
343 1.36 tls case CIOCNCRYPTM:
344 1.57 drochner mutex_enter(&crypto_mtx);
345 1.48 christos fcr->mtime = fcr->atime;
346 1.57 drochner mutex_exit(&crypto_mtx);
347 1.36 tls mop = (struct crypt_mop *)data;
348 1.36 tls cnop = kmem_alloc((mop->count * sizeof(struct crypt_n_op)),
349 1.42 christos KM_SLEEP);
350 1.42 christos error = copyin(mop->reqs, cnop,
351 1.42 christos (mop->count * sizeof(struct crypt_n_op)));
352 1.36 tls if(!error) {
353 1.42 christos error = cryptodev_mop(fcr, cnop, mop->count, curlwp);
354 1.36 tls if (!error) {
355 1.36 tls error = copyout(cnop, mop->reqs,
356 1.42 christos (mop->count * sizeof(struct crypt_n_op)));
357 1.36 tls }
358 1.36 tls }
359 1.36 tls kmem_free(cnop, (mop->count * sizeof(struct crypt_n_op)));
360 1.85 msaitoh break;
361 1.1 jonathan case CIOCKEY:
362 1.1 jonathan error = cryptodev_key((struct crypt_kop *)data);
363 1.34 tls DPRINTF(("cryptodev_key error = %d\n", error));
364 1.1 jonathan break;
365 1.36 tls case CIOCNFKEYM:
366 1.57 drochner mutex_enter(&crypto_mtx);
367 1.48 christos fcr->mtime = fcr->atime;
368 1.57 drochner mutex_exit(&crypto_mtx);
369 1.36 tls mkop = (struct crypt_mkop *)data;
370 1.36 tls knop = kmem_alloc((mkop->count * sizeof(struct crypt_n_kop)),
371 1.42 christos KM_SLEEP);
372 1.36 tls error = copyin(mkop->reqs, knop,
373 1.42 christos (mkop->count * sizeof(struct crypt_n_kop)));
374 1.36 tls if (!error) {
375 1.36 tls error = cryptodev_mkey(fcr, knop, mkop->count);
376 1.36 tls if (!error)
377 1.36 tls error = copyout(knop, mkop->reqs,
378 1.42 christos (mkop->count * sizeof(struct crypt_n_kop)));
379 1.36 tls }
380 1.36 tls kmem_free(knop, (mkop->count * sizeof(struct crypt_n_kop)));
381 1.36 tls break;
382 1.1 jonathan case CIOCASYMFEAT:
383 1.1 jonathan error = crypto_getfeat((int *)data);
384 1.1 jonathan break;
385 1.36 tls case CIOCNCRYPTRETM:
386 1.57 drochner mutex_enter(&crypto_mtx);
387 1.48 christos fcr->mtime = fcr->atime;
388 1.57 drochner mutex_exit(&crypto_mtx);
389 1.36 tls crypt_ret = (struct cryptret *)data;
390 1.36 tls count = crypt_ret->count;
391 1.42 christos crypt_res = kmem_alloc((count * sizeof(struct crypt_result)),
392 1.42 christos KM_SLEEP);
393 1.36 tls error = copyin(crypt_ret->results, crypt_res,
394 1.42 christos (count * sizeof(struct crypt_result)));
395 1.36 tls if (error)
396 1.36 tls goto reterr;
397 1.36 tls crypt_ret->count = cryptodev_getmstatus(fcr, crypt_res,
398 1.42 christos crypt_ret->count);
399 1.36 tls /* sanity check count */
400 1.36 tls if (crypt_ret->count > count) {
401 1.37 dogcow printf("%s.%d: error returned count %zd > original "
402 1.42 christos " count %zd\n",
403 1.42 christos __FILE__, __LINE__, crypt_ret->count, count);
404 1.36 tls crypt_ret->count = count;
405 1.36 tls
406 1.36 tls }
407 1.36 tls error = copyout(crypt_res, crypt_ret->results,
408 1.42 christos (crypt_ret->count * sizeof(struct crypt_result)));
409 1.36 tls reterr:
410 1.42 christos kmem_free(crypt_res, (count * sizeof(struct crypt_result)));
411 1.36 tls break;
412 1.36 tls case CIOCNCRYPTRET:
413 1.85 msaitoh error = cryptodev_getstatus(fcr, (struct crypt_result *)data);
414 1.36 tls break;
415 1.1 jonathan default:
416 1.55 drochner #ifdef COMPAT_50
417 1.46 darran /* Check for backward compatible commands */
418 1.46 darran error = ocryptof_ioctl(fp, cmd, data);
419 1.55 drochner #else
420 1.55 drochner return EINVAL;
421 1.55 drochner #endif
422 1.1 jonathan }
423 1.42 christos return error;
424 1.1 jonathan }
425 1.1 jonathan
426 1.46 darran int
427 1.25 christos cryptodev_op(struct csession *cse, struct crypt_op *cop, struct lwp *l)
428 1.1 jonathan {
429 1.1 jonathan struct cryptop *crp = NULL;
430 1.46 darran struct cryptodesc *crde = NULL, *crda = NULL, *crdc = NULL;
431 1.33 tls int error;
432 1.46 darran int iov_len = cop->len;
433 1.46 darran int flags=0;
434 1.46 darran int dst_len; /* copyout size */
435 1.1 jonathan
436 1.1 jonathan if (cop->len > 256*1024-4)
437 1.42 christos return E2BIG;
438 1.1 jonathan
439 1.13 jonathan if (cse->txform) {
440 1.58 drochner if (cop->len < cse->txform->blocksize
441 1.58 drochner + (cop->iv ? 0 : cse->txform->ivsize) ||
442 1.58 drochner (cop->len - (cop->iv ? 0 : cse->txform->ivsize))
443 1.58 drochner % cse->txform->blocksize != 0)
444 1.42 christos return EINVAL;
445 1.13 jonathan }
446 1.1 jonathan
447 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: iov_len %d\n",
448 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), iov_len));
449 1.46 darran if ((cse->tcomp) && cop->dst_len) {
450 1.46 darran if (iov_len < cop->dst_len) {
451 1.46 darran /* Need larger iov to deal with decompress */
452 1.46 darran iov_len = cop->dst_len;
453 1.46 darran }
454 1.46 darran DPRINTF(("cryptodev_op: iov_len -> %d for decompress\n", iov_len));
455 1.46 darran }
456 1.46 darran
457 1.42 christos (void)memset(&cse->uio, 0, sizeof(cse->uio));
458 1.1 jonathan cse->uio.uio_iovcnt = 1;
459 1.1 jonathan cse->uio.uio_resid = 0;
460 1.1 jonathan cse->uio.uio_rw = UIO_WRITE;
461 1.1 jonathan cse->uio.uio_iov = cse->iovec;
462 1.17 yamt UIO_SETUP_SYSSPACE(&cse->uio);
463 1.29 tls memset(&cse->iovec, 0, sizeof(cse->iovec));
464 1.46 darran
465 1.46 darran /* the iov needs to be big enough to handle the uncompressed
466 1.46 darran * data.... */
467 1.46 darran cse->uio.uio_iov[0].iov_len = iov_len;
468 1.64 drochner if (iov_len > 0)
469 1.64 drochner cse->uio.uio_iov[0].iov_base = kmem_alloc(iov_len, KM_SLEEP);
470 1.29 tls cse->uio.uio_resid = cse->uio.uio_iov[0].iov_len;
471 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: uio.iov_base %p malloced %d bytes\n",
472 1.53 jakllsch CRYPTO_SESID2LID(cse->sid),
473 1.53 jakllsch cse->uio.uio_iov[0].iov_base, iov_len));
474 1.1 jonathan
475 1.46 darran crp = crypto_getreq((cse->tcomp != NULL) + (cse->txform != NULL) + (cse->thash != NULL));
476 1.1 jonathan if (crp == NULL) {
477 1.1 jonathan error = ENOMEM;
478 1.1 jonathan goto bail;
479 1.1 jonathan }
480 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: crp %p\n",
481 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), crp));
482 1.46 darran
483 1.46 darran /* crds are always ordered tcomp, thash, then txform */
484 1.46 darran /* with optional missing links */
485 1.46 darran
486 1.46 darran /* XXX: If we're going to compress then hash or encrypt, we need
487 1.46 darran * to be able to pass on the new size of the data.
488 1.46 darran */
489 1.46 darran
490 1.46 darran if (cse->tcomp) {
491 1.46 darran crdc = crp->crp_desc;
492 1.46 darran }
493 1.1 jonathan
494 1.1 jonathan if (cse->thash) {
495 1.46 darran crda = crdc ? crdc->crd_next : crp->crp_desc;
496 1.44 christos if (cse->txform && crda)
497 1.1 jonathan crde = crda->crd_next;
498 1.1 jonathan } else {
499 1.46 darran if (cse->txform) {
500 1.46 darran crde = crdc ? crdc->crd_next : crp->crp_desc;
501 1.46 darran } else if (!cse->tcomp) {
502 1.1 jonathan error = EINVAL;
503 1.1 jonathan goto bail;
504 1.1 jonathan }
505 1.1 jonathan }
506 1.1 jonathan
507 1.53 jakllsch DPRINTF(("ocf[%u]: iov_len %zu, cop->len %u\n",
508 1.53 jakllsch CRYPTO_SESID2LID(cse->sid),
509 1.46 darran cse->uio.uio_iov[0].iov_len,
510 1.46 darran cop->len));
511 1.46 darran
512 1.1 jonathan if ((error = copyin(cop->src, cse->uio.uio_iov[0].iov_base, cop->len)))
513 1.36 tls {
514 1.36 tls printf("copyin failed %s %d \n", (char *)cop->src, error);
515 1.1 jonathan goto bail;
516 1.36 tls }
517 1.1 jonathan
518 1.46 darran if (crdc) {
519 1.46 darran switch (cop->op) {
520 1.46 darran case COP_COMP:
521 1.46 darran crdc->crd_flags |= CRD_F_COMP;
522 1.46 darran break;
523 1.46 darran case COP_DECOMP:
524 1.46 darran crdc->crd_flags &= ~CRD_F_COMP;
525 1.46 darran break;
526 1.46 darran default:
527 1.46 darran break;
528 1.46 darran }
529 1.46 darran /* more data to follow? */
530 1.46 darran if (cop->flags & COP_F_MORE) {
531 1.46 darran flags |= CRYPTO_F_MORE;
532 1.46 darran }
533 1.46 darran crdc->crd_len = cop->len;
534 1.46 darran crdc->crd_inject = 0;
535 1.46 darran
536 1.46 darran crdc->crd_alg = cse->comp_alg;
537 1.46 darran crdc->crd_key = NULL;
538 1.46 darran crdc->crd_klen = 0;
539 1.53 jakllsch DPRINTF(("cryptodev_op[%u]: crdc setup for comp_alg %d.\n",
540 1.53 jakllsch CRYPTO_SESID2LID(cse->sid), crdc->crd_alg));
541 1.46 darran }
542 1.46 darran
543 1.1 jonathan if (crda) {
544 1.1 jonathan crda->crd_skip = 0;
545 1.1 jonathan crda->crd_len = cop->len;
546 1.1 jonathan crda->crd_inject = 0; /* ??? */
547 1.1 jonathan
548 1.1 jonathan crda->crd_alg = cse->mac;
549 1.1 jonathan crda->crd_key = cse->mackey;
550 1.1 jonathan crda->crd_klen = cse->mackeylen * 8;
551 1.46 darran DPRINTF(("cryptodev_op: crda setup for mac %d.\n", crda->crd_alg));
552 1.1 jonathan }
553 1.1 jonathan
554 1.1 jonathan if (crde) {
555 1.46 darran switch (cop->op) {
556 1.46 darran case COP_ENCRYPT:
557 1.1 jonathan crde->crd_flags |= CRD_F_ENCRYPT;
558 1.46 darran break;
559 1.46 darran case COP_DECRYPT:
560 1.1 jonathan crde->crd_flags &= ~CRD_F_ENCRYPT;
561 1.46 darran break;
562 1.46 darran default:
563 1.46 darran break;
564 1.46 darran }
565 1.1 jonathan crde->crd_len = cop->len;
566 1.1 jonathan crde->crd_inject = 0;
567 1.1 jonathan
568 1.66 drochner if (cse->cipher == CRYPTO_AES_GCM_16 && crda)
569 1.66 drochner crda->crd_len = 0;
570 1.66 drochner else if (cse->cipher == CRYPTO_AES_GMAC)
571 1.66 drochner crde->crd_len = 0;
572 1.66 drochner
573 1.1 jonathan crde->crd_alg = cse->cipher;
574 1.1 jonathan crde->crd_key = cse->key;
575 1.1 jonathan crde->crd_klen = cse->keylen * 8;
576 1.46 darran DPRINTF(("cryptodev_op: crde setup for cipher %d.\n", crde->crd_alg));
577 1.1 jonathan }
578 1.1 jonathan
579 1.46 darran
580 1.1 jonathan crp->crp_ilen = cop->len;
581 1.45 darran /* The reqest is flagged as CRYPTO_F_USER as long as it is running
582 1.45 darran * in the user IOCTL thread. This flag lets us skip using the retq for
583 1.45 darran * the request if it completes immediately. If the request ends up being
584 1.45 darran * delayed or is not completed immediately the flag is removed.
585 1.45 darran */
586 1.46 darran crp->crp_flags = CRYPTO_F_IOV | (cop->flags & COP_F_BATCH) | CRYPTO_F_USER |
587 1.46 darran flags;
588 1.26 christos crp->crp_buf = (void *)&cse->uio;
589 1.1 jonathan crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
590 1.1 jonathan crp->crp_sid = cse->sid;
591 1.1 jonathan crp->crp_opaque = (void *)cse;
592 1.1 jonathan
593 1.1 jonathan if (cop->iv) {
594 1.1 jonathan if (crde == NULL) {
595 1.1 jonathan error = EINVAL;
596 1.1 jonathan goto bail;
597 1.1 jonathan }
598 1.62 drochner if (cse->txform->ivsize == 0) {
599 1.1 jonathan error = EINVAL;
600 1.1 jonathan goto bail;
601 1.1 jonathan }
602 1.36 tls if ((error = copyin(cop->iv, cse->tmp_iv,
603 1.58 drochner cse->txform->ivsize)))
604 1.1 jonathan goto bail;
605 1.58 drochner (void)memcpy(crde->crd_iv, cse->tmp_iv, cse->txform->ivsize);
606 1.1 jonathan crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
607 1.1 jonathan crde->crd_skip = 0;
608 1.1 jonathan } else if (crde) {
609 1.62 drochner if (cse->txform->ivsize == 0) {
610 1.20 christos crde->crd_skip = 0;
611 1.20 christos } else {
612 1.61 drochner if (!(crde->crd_flags & CRD_F_ENCRYPT))
613 1.61 drochner crde->crd_flags |= CRD_F_IV_PRESENT;
614 1.58 drochner crde->crd_skip = cse->txform->ivsize;
615 1.58 drochner crde->crd_len -= cse->txform->ivsize;
616 1.20 christos }
617 1.1 jonathan }
618 1.1 jonathan
619 1.1 jonathan if (cop->mac) {
620 1.1 jonathan if (crda == NULL) {
621 1.1 jonathan error = EINVAL;
622 1.1 jonathan goto bail;
623 1.1 jonathan }
624 1.1 jonathan crp->crp_mac=cse->tmp_mac;
625 1.1 jonathan }
626 1.1 jonathan
627 1.67 drochner cv_init(&crp->crp_cv, "crydev");
628 1.67 drochner
629 1.33 tls /*
630 1.33 tls * XXX there was a comment here which said that we went to
631 1.33 tls * XXX splcrypto() but needed to only if CRYPTO_F_CBIMM,
632 1.33 tls * XXX disabled on NetBSD since 1.6O due to a race condition.
633 1.33 tls * XXX But crypto_dispatch went to splcrypto() itself! (And
634 1.33 tls * XXX now takes the crypto_mtx mutex itself). We do, however,
635 1.33 tls * XXX need to hold the mutex across the call to cv_wait().
636 1.33 tls * XXX (should we arrange for crypto_dispatch to return to
637 1.33 tls * XXX us with it held? it seems quite ugly to do so.)
638 1.33 tls */
639 1.36 tls #ifdef notyet
640 1.36 tls eagain:
641 1.36 tls #endif
642 1.1 jonathan error = crypto_dispatch(crp);
643 1.57 drochner mutex_enter(&crypto_mtx);
644 1.36 tls
645 1.45 darran /*
646 1.45 darran * If the request was going to be completed by the
647 1.45 darran * ioctl thread then it would have been done by now.
648 1.52 hubertf * Remove the F_USER flag so crypto_done() is not confused
649 1.45 darran * if the crypto device calls it after this point.
650 1.45 darran */
651 1.45 darran crp->crp_flags &= ~(CRYPTO_F_USER);
652 1.45 darran
653 1.36 tls switch (error) {
654 1.36 tls #ifdef notyet /* don't loop forever -- but EAGAIN not possible here yet */
655 1.36 tls case EAGAIN:
656 1.57 drochner mutex_exit(&crypto_mtx);
657 1.36 tls goto eagain;
658 1.36 tls break;
659 1.36 tls #endif
660 1.36 tls case 0:
661 1.36 tls break;
662 1.36 tls default:
663 1.33 tls DPRINTF(("cryptodev_op: not waiting, error.\n"));
664 1.57 drochner mutex_exit(&crypto_mtx);
665 1.67 drochner cv_destroy(&crp->crp_cv);
666 1.1 jonathan goto bail;
667 1.1 jonathan }
668 1.45 darran
669 1.33 tls while (!(crp->crp_flags & CRYPTO_F_DONE)) {
670 1.53 jakllsch DPRINTF(("cryptodev_op[%d]: sleeping on cv %p for crp %p\n",
671 1.53 jakllsch (uint32_t)cse->sid, &crp->crp_cv, crp));
672 1.33 tls cv_wait(&crp->crp_cv, &crypto_mtx); /* XXX cv_wait_sig? */
673 1.33 tls }
674 1.33 tls if (crp->crp_flags & CRYPTO_F_ONRETQ) {
675 1.45 darran /* XXX this should never happen now with the CRYPTO_F_USER flag
676 1.45 darran * changes.
677 1.45 darran */
678 1.33 tls DPRINTF(("cryptodev_op: DONE, not woken by cryptoret.\n"));
679 1.33 tls (void)crypto_ret_q_remove(crp);
680 1.33 tls }
681 1.57 drochner mutex_exit(&crypto_mtx);
682 1.67 drochner cv_destroy(&crp->crp_cv);
683 1.1 jonathan
684 1.1 jonathan if (crp->crp_etype != 0) {
685 1.34 tls DPRINTF(("cryptodev_op: crp_etype %d\n", crp->crp_etype));
686 1.1 jonathan error = crp->crp_etype;
687 1.1 jonathan goto bail;
688 1.1 jonathan }
689 1.1 jonathan
690 1.1 jonathan if (cse->error) {
691 1.34 tls DPRINTF(("cryptodev_op: cse->error %d\n", cse->error));
692 1.1 jonathan error = cse->error;
693 1.1 jonathan goto bail;
694 1.1 jonathan }
695 1.1 jonathan
696 1.46 darran dst_len = crp->crp_ilen;
697 1.46 darran /* let the user know how much data was returned */
698 1.46 darran if (crp->crp_olen) {
699 1.64 drochner if (crp->crp_olen > (cop->dst_len ? cop->dst_len : cop->len)) {
700 1.82 christos error = ENOSPC;
701 1.64 drochner goto bail;
702 1.64 drochner }
703 1.46 darran dst_len = cop->dst_len = crp->crp_olen;
704 1.46 darran }
705 1.46 darran
706 1.46 darran if (cop->dst) {
707 1.46 darran DPRINTF(("cryptodev_op: copyout %d bytes to %p\n", dst_len, cop->dst));
708 1.46 darran }
709 1.1 jonathan if (cop->dst &&
710 1.46 darran (error = copyout(cse->uio.uio_iov[0].iov_base, cop->dst, dst_len)))
711 1.36 tls {
712 1.34 tls DPRINTF(("cryptodev_op: copyout error %d\n", error));
713 1.1 jonathan goto bail;
714 1.34 tls }
715 1.1 jonathan
716 1.1 jonathan if (cop->mac &&
717 1.34 tls (error = copyout(crp->crp_mac, cop->mac, cse->thash->authsize))) {
718 1.34 tls DPRINTF(("cryptodev_op: mac copyout error %d\n", error));
719 1.1 jonathan goto bail;
720 1.34 tls }
721 1.1 jonathan
722 1.46 darran
723 1.1 jonathan bail:
724 1.45 darran if (crp) {
725 1.1 jonathan crypto_freereq(crp);
726 1.45 darran }
727 1.46 darran if (cse->uio.uio_iov[0].iov_base) {
728 1.46 darran kmem_free(cse->uio.uio_iov[0].iov_base,iov_len);
729 1.46 darran }
730 1.1 jonathan
731 1.42 christos return error;
732 1.1 jonathan }
733 1.1 jonathan
734 1.1 jonathan static int
735 1.1 jonathan cryptodev_cb(void *op)
736 1.1 jonathan {
737 1.1 jonathan struct cryptop *crp = (struct cryptop *) op;
738 1.1 jonathan struct csession *cse = (struct csession *)crp->crp_opaque;
739 1.33 tls int error = 0;
740 1.1 jonathan
741 1.57 drochner mutex_enter(&crypto_mtx);
742 1.1 jonathan cse->error = crp->crp_etype;
743 1.33 tls if (crp->crp_etype == EAGAIN) {
744 1.33 tls /* always drop mutex to call dispatch routine */
745 1.57 drochner mutex_exit(&crypto_mtx);
746 1.33 tls error = crypto_dispatch(crp);
747 1.57 drochner mutex_enter(&crypto_mtx);
748 1.33 tls }
749 1.33 tls if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
750 1.33 tls cv_signal(&crp->crp_cv);
751 1.33 tls }
752 1.57 drochner mutex_exit(&crypto_mtx);
753 1.42 christos return 0;
754 1.1 jonathan }
755 1.1 jonathan
756 1.1 jonathan static int
757 1.36 tls cryptodev_mcb(void *op)
758 1.36 tls {
759 1.36 tls struct cryptop *crp = (struct cryptop *) op;
760 1.36 tls struct csession *cse = (struct csession *)crp->crp_opaque;
761 1.36 tls int error=0;
762 1.36 tls
763 1.57 drochner mutex_enter(&crypto_mtx);
764 1.36 tls cse->error = crp->crp_etype;
765 1.36 tls if (crp->crp_etype == EAGAIN) {
766 1.57 drochner mutex_exit(&crypto_mtx);
767 1.36 tls error = crypto_dispatch(crp);
768 1.57 drochner mutex_enter(&crypto_mtx);
769 1.36 tls }
770 1.36 tls if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
771 1.36 tls cv_signal(&crp->crp_cv);
772 1.36 tls }
773 1.36 tls
774 1.36 tls TAILQ_INSERT_TAIL(&crp->fcrp->crp_ret_mq, crp, crp_next);
775 1.38 rmind selnotify(&crp->fcrp->sinfo, 0, 0);
776 1.57 drochner mutex_exit(&crypto_mtx);
777 1.42 christos return 0;
778 1.36 tls }
779 1.36 tls
780 1.36 tls static int
781 1.1 jonathan cryptodevkey_cb(void *op)
782 1.1 jonathan {
783 1.42 christos struct cryptkop *krp = op;
784 1.36 tls
785 1.57 drochner mutex_enter(&crypto_mtx);
786 1.36 tls cv_signal(&krp->krp_cv);
787 1.57 drochner mutex_exit(&crypto_mtx);
788 1.42 christos return 0;
789 1.36 tls }
790 1.36 tls
791 1.36 tls static int
792 1.36 tls cryptodevkey_mcb(void *op)
793 1.36 tls {
794 1.42 christos struct cryptkop *krp = op;
795 1.1 jonathan
796 1.57 drochner mutex_enter(&crypto_mtx);
797 1.33 tls cv_signal(&krp->krp_cv);
798 1.36 tls TAILQ_INSERT_TAIL(&krp->fcrp->crp_ret_mkq, krp, krp_next);
799 1.38 rmind selnotify(&krp->fcrp->sinfo, 0, 0);
800 1.57 drochner mutex_exit(&crypto_mtx);
801 1.42 christos return 0;
802 1.1 jonathan }
803 1.1 jonathan
804 1.1 jonathan static int
805 1.1 jonathan cryptodev_key(struct crypt_kop *kop)
806 1.1 jonathan {
807 1.1 jonathan struct cryptkop *krp = NULL;
808 1.1 jonathan int error = EINVAL;
809 1.1 jonathan int in, out, size, i;
810 1.1 jonathan
811 1.42 christos if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM)
812 1.42 christos return EFBIG;
813 1.1 jonathan
814 1.1 jonathan in = kop->crk_iparams;
815 1.1 jonathan out = kop->crk_oparams;
816 1.1 jonathan switch (kop->crk_op) {
817 1.1 jonathan case CRK_MOD_EXP:
818 1.1 jonathan if (in == 3 && out == 1)
819 1.1 jonathan break;
820 1.42 christos return EINVAL;
821 1.1 jonathan case CRK_MOD_EXP_CRT:
822 1.1 jonathan if (in == 6 && out == 1)
823 1.1 jonathan break;
824 1.42 christos return EINVAL;
825 1.1 jonathan case CRK_DSA_SIGN:
826 1.1 jonathan if (in == 5 && out == 2)
827 1.1 jonathan break;
828 1.42 christos return EINVAL;
829 1.1 jonathan case CRK_DSA_VERIFY:
830 1.1 jonathan if (in == 7 && out == 0)
831 1.1 jonathan break;
832 1.42 christos return EINVAL;
833 1.1 jonathan case CRK_DH_COMPUTE_KEY:
834 1.1 jonathan if (in == 3 && out == 1)
835 1.1 jonathan break;
836 1.42 christos return EINVAL;
837 1.27 tls case CRK_MOD_ADD:
838 1.27 tls if (in == 3 && out == 1)
839 1.27 tls break;
840 1.42 christos return EINVAL;
841 1.27 tls case CRK_MOD_ADDINV:
842 1.27 tls if (in == 2 && out == 1)
843 1.27 tls break;
844 1.42 christos return EINVAL;
845 1.27 tls case CRK_MOD_SUB:
846 1.27 tls if (in == 3 && out == 1)
847 1.27 tls break;
848 1.42 christos return EINVAL;
849 1.27 tls case CRK_MOD_MULT:
850 1.27 tls if (in == 3 && out == 1)
851 1.27 tls break;
852 1.42 christos return EINVAL;
853 1.27 tls case CRK_MOD_MULTINV:
854 1.27 tls if (in == 2 && out == 1)
855 1.27 tls break;
856 1.42 christos return EINVAL;
857 1.27 tls case CRK_MOD:
858 1.27 tls if (in == 2 && out == 1)
859 1.27 tls break;
860 1.42 christos return EINVAL;
861 1.1 jonathan default:
862 1.42 christos return EINVAL;
863 1.1 jonathan }
864 1.1 jonathan
865 1.33 tls krp = pool_get(&cryptkop_pool, PR_WAITOK);
866 1.42 christos (void)memset(krp, 0, sizeof *krp);
867 1.33 tls cv_init(&krp->krp_cv, "crykdev");
868 1.1 jonathan krp->krp_op = kop->crk_op;
869 1.1 jonathan krp->krp_status = kop->crk_status;
870 1.1 jonathan krp->krp_iparams = kop->crk_iparams;
871 1.1 jonathan krp->krp_oparams = kop->crk_oparams;
872 1.1 jonathan krp->krp_status = 0;
873 1.1 jonathan krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
874 1.1 jonathan
875 1.1 jonathan for (i = 0; i < CRK_MAXPARAM; i++)
876 1.1 jonathan krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
877 1.1 jonathan for (i = 0; i < krp->krp_iparams + krp->krp_oparams; 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 1.36 tls krp->krp_param[i].crp_p = kmem_alloc(size, KM_SLEEP);
882 1.1 jonathan if (i >= krp->krp_iparams)
883 1.1 jonathan continue;
884 1.42 christos error = copyin(kop->crk_param[i].crp_p,
885 1.42 christos krp->krp_param[i].crp_p, size);
886 1.1 jonathan if (error)
887 1.1 jonathan goto fail;
888 1.1 jonathan }
889 1.1 jonathan
890 1.1 jonathan error = crypto_kdispatch(krp);
891 1.33 tls if (error != 0) {
892 1.1 jonathan goto fail;
893 1.33 tls }
894 1.33 tls
895 1.57 drochner mutex_enter(&crypto_mtx);
896 1.33 tls while (!(krp->krp_flags & CRYPTO_F_DONE)) {
897 1.33 tls cv_wait(&krp->krp_cv, &crypto_mtx); /* XXX cv_wait_sig? */
898 1.33 tls }
899 1.33 tls if (krp->krp_flags & CRYPTO_F_ONRETQ) {
900 1.33 tls DPRINTF(("cryptodev_key: DONE early, not via cryptoret.\n"));
901 1.33 tls (void)crypto_ret_kq_remove(krp);
902 1.33 tls }
903 1.57 drochner mutex_exit(&crypto_mtx);
904 1.1 jonathan
905 1.1 jonathan if (krp->krp_status != 0) {
906 1.42 christos DPRINTF(("cryptodev_key: krp->krp_status 0x%08x\n",
907 1.42 christos krp->krp_status));
908 1.1 jonathan error = krp->krp_status;
909 1.1 jonathan goto fail;
910 1.1 jonathan }
911 1.1 jonathan
912 1.42 christos for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams;
913 1.42 christos i++) {
914 1.1 jonathan size = (krp->krp_param[i].crp_nbits + 7) / 8;
915 1.1 jonathan if (size == 0)
916 1.1 jonathan continue;
917 1.42 christos error = copyout(krp->krp_param[i].crp_p,
918 1.42 christos kop->crk_param[i].crp_p, size);
919 1.34 tls if (error) {
920 1.42 christos DPRINTF(("cryptodev_key: copyout oparam %d failed, "
921 1.42 christos "error=%d\n", i-krp->krp_iparams, error));
922 1.1 jonathan goto fail;
923 1.34 tls }
924 1.1 jonathan }
925 1.1 jonathan
926 1.1 jonathan fail:
927 1.43 christos kop->crk_status = krp->krp_status;
928 1.43 christos for (i = 0; i < CRK_MAXPARAM; i++) {
929 1.43 christos struct crparam *kp = &(krp->krp_param[i]);
930 1.43 christos if (krp->krp_param[i].crp_p) {
931 1.43 christos size = (kp->crp_nbits + 7) / 8;
932 1.43 christos KASSERT(size > 0);
933 1.43 christos (void)memset(kp->crp_p, 0, size);
934 1.43 christos kmem_free(kp->crp_p, size);
935 1.1 jonathan }
936 1.1 jonathan }
937 1.45 darran cv_destroy(&krp->krp_cv);
938 1.43 christos pool_put(&cryptkop_pool, krp);
939 1.34 tls DPRINTF(("cryptodev_key: error=0x%08x\n", error));
940 1.42 christos return error;
941 1.1 jonathan }
942 1.1 jonathan
943 1.1 jonathan /* ARGSUSED */
944 1.1 jonathan static int
945 1.36 tls cryptof_close(struct file *fp)
946 1.1 jonathan {
947 1.81 matt struct fcrypt *fcr = fp->f_fcrypt;
948 1.1 jonathan struct csession *cse;
949 1.1 jonathan
950 1.57 drochner mutex_enter(&crypto_mtx);
951 1.1 jonathan while ((cse = TAILQ_FIRST(&fcr->csessions))) {
952 1.1 jonathan TAILQ_REMOVE(&fcr->csessions, cse, next);
953 1.57 drochner mutex_exit(&crypto_mtx);
954 1.1 jonathan (void)csefree(cse);
955 1.57 drochner mutex_enter(&crypto_mtx);
956 1.1 jonathan }
957 1.36 tls seldestroy(&fcr->sinfo);
958 1.81 matt fp->f_fcrypt = NULL;
959 1.74 pgoyette crypto_refcount--;
960 1.57 drochner mutex_exit(&crypto_mtx);
961 1.1 jonathan
962 1.38 rmind pool_put(&fcrpl, fcr);
963 1.1 jonathan return 0;
964 1.1 jonathan }
965 1.1 jonathan
966 1.46 darran /* needed for compatibility module */
967 1.46 darran struct csession *cryptodev_csefind(struct fcrypt *fcr, u_int ses)
968 1.46 darran {
969 1.46 darran return csefind(fcr, ses);
970 1.46 darran }
971 1.46 darran
972 1.33 tls /* csefind: call with crypto_mtx held. */
973 1.1 jonathan static struct csession *
974 1.1 jonathan csefind(struct fcrypt *fcr, u_int ses)
975 1.1 jonathan {
976 1.45 darran struct csession *cse, *cnext, *ret = NULL;
977 1.1 jonathan
978 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
979 1.45 darran TAILQ_FOREACH_SAFE(cse, &fcr->csessions, next, cnext)
980 1.1 jonathan if (cse->ses == ses)
981 1.33 tls ret = cse;
982 1.36 tls
983 1.42 christos return ret;
984 1.1 jonathan }
985 1.1 jonathan
986 1.33 tls /* csedelete: call with crypto_mtx held. */
987 1.1 jonathan static int
988 1.1 jonathan csedelete(struct fcrypt *fcr, struct csession *cse_del)
989 1.1 jonathan {
990 1.45 darran struct csession *cse, *cnext;
991 1.33 tls int ret = 0;
992 1.1 jonathan
993 1.33 tls KASSERT(mutex_owned(&crypto_mtx));
994 1.45 darran TAILQ_FOREACH_SAFE(cse, &fcr->csessions, next, cnext) {
995 1.1 jonathan if (cse == cse_del) {
996 1.1 jonathan TAILQ_REMOVE(&fcr->csessions, cse, next);
997 1.33 tls ret = 1;
998 1.1 jonathan }
999 1.1 jonathan }
1000 1.42 christos return ret;
1001 1.1 jonathan }
1002 1.1 jonathan
1003 1.1 jonathan static struct csession *
1004 1.1 jonathan cseadd(struct fcrypt *fcr, struct csession *cse)
1005 1.1 jonathan {
1006 1.57 drochner mutex_enter(&crypto_mtx);
1007 1.33 tls /* don't let session ID wrap! */
1008 1.33 tls if (fcr->sesn + 1 == 0) return NULL;
1009 1.1 jonathan TAILQ_INSERT_TAIL(&fcr->csessions, cse, next);
1010 1.1 jonathan cse->ses = fcr->sesn++;
1011 1.57 drochner mutex_exit(&crypto_mtx);
1012 1.42 christos return cse;
1013 1.1 jonathan }
1014 1.1 jonathan
1015 1.1 jonathan static struct csession *
1016 1.26 christos csecreate(struct fcrypt *fcr, u_int64_t sid, void *key, u_int64_t keylen,
1017 1.26 christos void *mackey, u_int64_t mackeylen, u_int32_t cipher, u_int32_t mac,
1018 1.54 drochner u_int32_t comp_alg, const struct enc_xform *txform,
1019 1.54 drochner const struct auth_hash *thash, const struct comp_algo *tcomp)
1020 1.1 jonathan {
1021 1.1 jonathan struct csession *cse;
1022 1.1 jonathan
1023 1.29 tls cse = pool_get(&csepl, PR_NOWAIT);
1024 1.1 jonathan if (cse == NULL)
1025 1.1 jonathan return NULL;
1026 1.1 jonathan cse->key = key;
1027 1.1 jonathan cse->keylen = keylen/8;
1028 1.1 jonathan cse->mackey = mackey;
1029 1.1 jonathan cse->mackeylen = mackeylen/8;
1030 1.1 jonathan cse->sid = sid;
1031 1.1 jonathan cse->cipher = cipher;
1032 1.1 jonathan cse->mac = mac;
1033 1.46 darran cse->comp_alg = comp_alg;
1034 1.1 jonathan cse->txform = txform;
1035 1.1 jonathan cse->thash = thash;
1036 1.46 darran cse->tcomp = tcomp;
1037 1.34 tls cse->error = 0;
1038 1.28 tls if (cseadd(fcr, cse))
1039 1.42 christos return cse;
1040 1.28 tls else {
1041 1.33 tls pool_put(&csepl, cse);
1042 1.28 tls return NULL;
1043 1.28 tls }
1044 1.1 jonathan }
1045 1.1 jonathan
1046 1.33 tls /* csefree: call with crypto_mtx held. */
1047 1.1 jonathan static int
1048 1.1 jonathan csefree(struct csession *cse)
1049 1.1 jonathan {
1050 1.1 jonathan int error;
1051 1.1 jonathan
1052 1.1 jonathan error = crypto_freesession(cse->sid);
1053 1.1 jonathan if (cse->key)
1054 1.36 tls free(cse->key, M_XDATA);
1055 1.1 jonathan if (cse->mackey)
1056 1.36 tls free(cse->mackey, M_XDATA);
1057 1.29 tls pool_put(&csepl, cse);
1058 1.42 christos return error;
1059 1.1 jonathan }
1060 1.1 jonathan
1061 1.1 jonathan static int
1062 1.25 christos cryptoopen(dev_t dev, int flag, int mode,
1063 1.25 christos struct lwp *l)
1064 1.1 jonathan {
1065 1.35 ad file_t *fp;
1066 1.29 tls struct fcrypt *fcr;
1067 1.29 tls int fd, error;
1068 1.29 tls
1069 1.1 jonathan if (crypto_usercrypto == 0)
1070 1.42 christos return ENXIO;
1071 1.29 tls
1072 1.35 ad if ((error = fd_allocfile(&fp, &fd)) != 0)
1073 1.29 tls return error;
1074 1.29 tls
1075 1.29 tls fcr = pool_get(&fcrpl, PR_WAITOK);
1076 1.48 christos getnanotime(&fcr->btime);
1077 1.48 christos fcr->atime = fcr->mtime = fcr->btime;
1078 1.57 drochner mutex_enter(&crypto_mtx);
1079 1.29 tls TAILQ_INIT(&fcr->csessions);
1080 1.36 tls TAILQ_INIT(&fcr->crp_ret_mq);
1081 1.36 tls TAILQ_INIT(&fcr->crp_ret_mkq);
1082 1.36 tls selinit(&fcr->sinfo);
1083 1.29 tls /*
1084 1.29 tls * Don't ever return session 0, to allow detection of
1085 1.29 tls * failed creation attempts with multi-create ioctl.
1086 1.29 tls */
1087 1.29 tls fcr->sesn = 1;
1088 1.36 tls fcr->requestid = 1;
1089 1.74 pgoyette crypto_refcount++;
1090 1.57 drochner mutex_exit(&crypto_mtx);
1091 1.35 ad return fd_clone(fp, fd, flag, &cryptofops, fcr);
1092 1.1 jonathan }
1093 1.1 jonathan
1094 1.1 jonathan static int
1095 1.25 christos cryptoread(dev_t dev, struct uio *uio, int ioflag)
1096 1.1 jonathan {
1097 1.42 christos return EIO;
1098 1.1 jonathan }
1099 1.1 jonathan
1100 1.1 jonathan static int
1101 1.25 christos cryptowrite(dev_t dev, struct uio *uio, int ioflag)
1102 1.1 jonathan {
1103 1.42 christos return EIO;
1104 1.1 jonathan }
1105 1.1 jonathan
1106 1.1 jonathan int
1107 1.25 christos cryptoselect(dev_t dev, int rw, struct lwp *l)
1108 1.1 jonathan {
1109 1.42 christos return 0;
1110 1.1 jonathan }
1111 1.1 jonathan
1112 1.1 jonathan /*static*/
1113 1.1 jonathan struct cdevsw crypto_cdevsw = {
1114 1.78 dholland .d_open = cryptoopen,
1115 1.78 dholland .d_close = noclose,
1116 1.78 dholland .d_read = cryptoread,
1117 1.78 dholland .d_write = cryptowrite,
1118 1.78 dholland .d_ioctl = noioctl,
1119 1.78 dholland .d_stop = nostop,
1120 1.78 dholland .d_tty = notty,
1121 1.78 dholland .d_poll = cryptoselect /*nopoll*/,
1122 1.78 dholland .d_mmap = nommap,
1123 1.78 dholland .d_kqfilter = nokqfilter,
1124 1.79 dholland .d_discard = nodiscard,
1125 1.78 dholland .d_flag = D_OTHER
1126 1.1 jonathan };
1127 1.1 jonathan
1128 1.46 darran int
1129 1.36 tls cryptodev_mop(struct fcrypt *fcr,
1130 1.36 tls struct crypt_n_op * cnop,
1131 1.36 tls int count, struct lwp *l)
1132 1.36 tls {
1133 1.36 tls struct cryptop *crp = NULL;
1134 1.46 darran struct cryptodesc *crde = NULL, *crda = NULL, *crdc = NULL;
1135 1.36 tls int req, error=0;
1136 1.36 tls struct csession *cse;
1137 1.46 darran int flags=0;
1138 1.46 darran int iov_len;
1139 1.36 tls
1140 1.36 tls for (req = 0; req < count; req++) {
1141 1.57 drochner mutex_enter(&crypto_mtx);
1142 1.36 tls cse = csefind(fcr, cnop[req].ses);
1143 1.36 tls if (cse == NULL) {
1144 1.36 tls DPRINTF(("csefind failed\n"));
1145 1.36 tls cnop[req].status = EINVAL;
1146 1.57 drochner mutex_exit(&crypto_mtx);
1147 1.36 tls continue;
1148 1.36 tls }
1149 1.57 drochner mutex_exit(&crypto_mtx);
1150 1.36 tls
1151 1.36 tls if (cnop[req].len > 256*1024-4) {
1152 1.36 tls DPRINTF(("length failed\n"));
1153 1.36 tls cnop[req].status = EINVAL;
1154 1.36 tls continue;
1155 1.36 tls }
1156 1.36 tls if (cse->txform) {
1157 1.58 drochner if (cnop[req].len < cse->txform->blocksize -
1158 1.58 drochner (cnop[req].iv ? 0 : cse->txform->ivsize) ||
1159 1.58 drochner (cnop[req].len -
1160 1.58 drochner (cnop[req].iv ? 0 : cse->txform->ivsize))
1161 1.58 drochner % cse->txform->blocksize) {
1162 1.36 tls cnop[req].status = EINVAL;
1163 1.36 tls continue;
1164 1.36 tls }
1165 1.36 tls }
1166 1.36 tls
1167 1.42 christos crp = crypto_getreq((cse->txform != NULL) +
1168 1.46 darran (cse->thash != NULL) +
1169 1.46 darran (cse->tcomp != NULL));
1170 1.36 tls if (crp == NULL) {
1171 1.36 tls cnop[req].status = ENOMEM;
1172 1.36 tls goto bail;
1173 1.36 tls }
1174 1.36 tls
1175 1.46 darran iov_len = cnop[req].len;
1176 1.46 darran /* got a compression/decompression max size? */
1177 1.46 darran if ((cse->tcomp) && cnop[req].dst_len) {
1178 1.46 darran if (iov_len < cnop[req].dst_len) {
1179 1.46 darran /* Need larger iov to deal with decompress */
1180 1.46 darran iov_len = cnop[req].dst_len;
1181 1.46 darran }
1182 1.46 darran DPRINTF(("cryptodev_mop: iov_len -> %d for decompress\n", iov_len));
1183 1.46 darran }
1184 1.46 darran
1185 1.42 christos (void)memset(&crp->uio, 0, sizeof(crp->uio));
1186 1.36 tls crp->uio.uio_iovcnt = 1;
1187 1.36 tls crp->uio.uio_resid = 0;
1188 1.36 tls crp->uio.uio_rw = UIO_WRITE;
1189 1.36 tls crp->uio.uio_iov = crp->iovec;
1190 1.36 tls UIO_SETUP_SYSSPACE(&crp->uio);
1191 1.36 tls memset(&crp->iovec, 0, sizeof(crp->iovec));
1192 1.46 darran crp->uio.uio_iov[0].iov_len = iov_len;
1193 1.46 darran DPRINTF(("cryptodev_mop: kmem_alloc(%d) for iov \n", iov_len));
1194 1.46 darran crp->uio.uio_iov[0].iov_base = kmem_alloc(iov_len, KM_SLEEP);
1195 1.36 tls crp->uio.uio_resid = crp->uio.uio_iov[0].iov_len;
1196 1.36 tls
1197 1.46 darran if (cse->tcomp) {
1198 1.46 darran crdc = crp->crp_desc;
1199 1.46 darran }
1200 1.46 darran
1201 1.36 tls if (cse->thash) {
1202 1.46 darran crda = crdc ? crdc->crd_next : crp->crp_desc;
1203 1.44 christos if (cse->txform && crda)
1204 1.36 tls crde = crda->crd_next;
1205 1.36 tls } else {
1206 1.46 darran if (cse->txform) {
1207 1.46 darran crde = crdc ? crdc->crd_next : crp->crp_desc;
1208 1.46 darran } else if (!cse->tcomp) {
1209 1.46 darran error = EINVAL;
1210 1.46 darran goto bail;
1211 1.36 tls }
1212 1.36 tls }
1213 1.36 tls
1214 1.36 tls if ((copyin(cnop[req].src,
1215 1.36 tls crp->uio.uio_iov[0].iov_base, cnop[req].len))) {
1216 1.36 tls cnop[req].status = EINVAL;
1217 1.36 tls goto bail;
1218 1.36 tls }
1219 1.46 darran
1220 1.46 darran if (crdc) {
1221 1.46 darran switch (cnop[req].op) {
1222 1.46 darran case COP_COMP:
1223 1.46 darran crdc->crd_flags |= CRD_F_COMP;
1224 1.46 darran break;
1225 1.46 darran case COP_DECOMP:
1226 1.46 darran crdc->crd_flags &= ~CRD_F_COMP;
1227 1.46 darran break;
1228 1.46 darran default:
1229 1.46 darran break;
1230 1.46 darran }
1231 1.46 darran /* more data to follow? */
1232 1.46 darran if (cnop[req].flags & COP_F_MORE) {
1233 1.46 darran flags |= CRYPTO_F_MORE;
1234 1.46 darran }
1235 1.46 darran crdc->crd_len = cnop[req].len;
1236 1.46 darran crdc->crd_inject = 0;
1237 1.46 darran
1238 1.46 darran crdc->crd_alg = cse->comp_alg;
1239 1.46 darran crdc->crd_key = NULL;
1240 1.46 darran crdc->crd_klen = 0;
1241 1.46 darran DPRINTF(("cryptodev_mop[%d]: crdc setup for comp_alg %d"
1242 1.46 darran " len %d.\n",
1243 1.46 darran (uint32_t)cse->sid, crdc->crd_alg,
1244 1.46 darran crdc->crd_len));
1245 1.46 darran }
1246 1.36 tls
1247 1.36 tls if (crda) {
1248 1.36 tls crda->crd_skip = 0;
1249 1.36 tls crda->crd_len = cnop[req].len;
1250 1.36 tls crda->crd_inject = 0; /* ??? */
1251 1.36 tls
1252 1.36 tls crda->crd_alg = cse->mac;
1253 1.36 tls crda->crd_key = cse->mackey;
1254 1.36 tls crda->crd_klen = cse->mackeylen * 8;
1255 1.36 tls }
1256 1.36 tls
1257 1.36 tls if (crde) {
1258 1.36 tls if (cnop[req].op == COP_ENCRYPT)
1259 1.36 tls crde->crd_flags |= CRD_F_ENCRYPT;
1260 1.36 tls else
1261 1.36 tls crde->crd_flags &= ~CRD_F_ENCRYPT;
1262 1.36 tls crde->crd_len = cnop[req].len;
1263 1.36 tls crde->crd_inject = 0;
1264 1.36 tls
1265 1.36 tls crde->crd_alg = cse->cipher;
1266 1.36 tls #ifdef notyet /* XXX must notify h/w driver new key, drain */
1267 1.36 tls if(cnop[req].key && cnop[req].keylen) {
1268 1.36 tls crde->crd_key = malloc(cnop[req].keylen,
1269 1.36 tls M_XDATA, M_WAITOK);
1270 1.36 tls if((error = copyin(cnop[req].key,
1271 1.36 tls crde->crd_key, cnop[req].keylen))) {
1272 1.36 tls cnop[req].status = EINVAL;
1273 1.36 tls goto bail;
1274 1.36 tls }
1275 1.36 tls crde->crd_klen = cnop[req].keylen * 8;
1276 1.36 tls } else { ... }
1277 1.36 tls #endif
1278 1.36 tls crde->crd_key = cse->key;
1279 1.36 tls crde->crd_klen = cse->keylen * 8;
1280 1.36 tls }
1281 1.36 tls
1282 1.36 tls crp->crp_ilen = cnop[req].len;
1283 1.42 christos crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM |
1284 1.46 darran (cnop[req].flags & COP_F_BATCH) | flags;
1285 1.36 tls crp->crp_buf = (void *)&crp->uio;
1286 1.36 tls crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_mcb;
1287 1.36 tls crp->crp_sid = cse->sid;
1288 1.36 tls crp->crp_opaque = (void *)cse;
1289 1.36 tls crp->fcrp = fcr;
1290 1.36 tls crp->dst = cnop[req].dst;
1291 1.46 darran crp->len = cnop[req].len; /* input len, iov may be larger */
1292 1.36 tls crp->mac = cnop[req].mac;
1293 1.46 darran DPRINTF(("cryptodev_mop: iov_base %p dst %p len %d mac %p\n",
1294 1.46 darran crp->uio.uio_iov[0].iov_base, crp->dst, crp->len,
1295 1.46 darran crp->mac));
1296 1.36 tls
1297 1.36 tls if (cnop[req].iv) {
1298 1.36 tls if (crde == NULL) {
1299 1.36 tls cnop[req].status = EINVAL;
1300 1.36 tls goto bail;
1301 1.36 tls }
1302 1.36 tls if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
1303 1.36 tls cnop[req].status = EINVAL;
1304 1.36 tls goto bail;
1305 1.36 tls }
1306 1.36 tls if ((error = copyin(cnop[req].iv, crp->tmp_iv,
1307 1.58 drochner cse->txform->ivsize))) {
1308 1.36 tls cnop[req].status = EINVAL;
1309 1.36 tls goto bail;
1310 1.36 tls }
1311 1.42 christos (void)memcpy(crde->crd_iv, crp->tmp_iv,
1312 1.58 drochner cse->txform->ivsize);
1313 1.36 tls crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
1314 1.36 tls crde->crd_skip = 0;
1315 1.36 tls } else if (crde) {
1316 1.36 tls if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
1317 1.36 tls crde->crd_skip = 0;
1318 1.36 tls } else {
1319 1.61 drochner if (!(crde->crd_flags & CRD_F_ENCRYPT))
1320 1.61 drochner crde->crd_flags |= CRD_F_IV_PRESENT;
1321 1.58 drochner crde->crd_skip = cse->txform->ivsize;
1322 1.58 drochner crde->crd_len -= cse->txform->ivsize;
1323 1.36 tls }
1324 1.36 tls }
1325 1.36 tls
1326 1.36 tls if (cnop[req].mac) {
1327 1.36 tls if (crda == NULL) {
1328 1.36 tls cnop[req].status = EINVAL;
1329 1.36 tls goto bail;
1330 1.36 tls }
1331 1.36 tls crp->crp_mac=cse->tmp_mac;
1332 1.36 tls }
1333 1.36 tls cnop[req].reqid = atomic_inc_32_nv(&(fcr->requestid));
1334 1.36 tls crp->crp_reqid = cnop[req].reqid;
1335 1.36 tls crp->crp_usropaque = cnop[req].opaque;
1336 1.67 drochner cv_init(&crp->crp_cv, "crydev");
1337 1.36 tls #ifdef notyet
1338 1.36 tls eagain:
1339 1.36 tls #endif
1340 1.36 tls cnop[req].status = crypto_dispatch(crp);
1341 1.57 drochner mutex_enter(&crypto_mtx); /* XXX why mutex? */
1342 1.36 tls
1343 1.36 tls switch (cnop[req].status) {
1344 1.36 tls #ifdef notyet /* don't loop forever -- but EAGAIN not possible here yet */
1345 1.36 tls case EAGAIN:
1346 1.57 drochner mutex_exit(&crypto_mtx);
1347 1.36 tls goto eagain;
1348 1.36 tls break;
1349 1.36 tls #endif
1350 1.36 tls case 0:
1351 1.36 tls break;
1352 1.36 tls default:
1353 1.36 tls DPRINTF(("cryptodev_op: not waiting, error.\n"));
1354 1.57 drochner mutex_exit(&crypto_mtx);
1355 1.67 drochner cv_destroy(&crp->crp_cv);
1356 1.36 tls goto bail;
1357 1.36 tls }
1358 1.36 tls
1359 1.57 drochner mutex_exit(&crypto_mtx);
1360 1.67 drochner cv_destroy(&crp->crp_cv);
1361 1.36 tls bail:
1362 1.36 tls if (cnop[req].status) {
1363 1.36 tls if (crp) {
1364 1.46 darran if (crp->uio.uio_iov[0].iov_base) {
1365 1.46 darran kmem_free(crp->uio.uio_iov[0].iov_base,
1366 1.46 darran crp->uio.uio_iov[0].iov_len);
1367 1.46 darran }
1368 1.36 tls crypto_freereq(crp);
1369 1.36 tls }
1370 1.36 tls error = 0;
1371 1.36 tls }
1372 1.36 tls }
1373 1.42 christos return error;
1374 1.36 tls }
1375 1.36 tls
1376 1.36 tls static int
1377 1.36 tls cryptodev_mkey(struct fcrypt *fcr, struct crypt_n_kop *kop, int count)
1378 1.36 tls {
1379 1.36 tls struct cryptkop *krp = NULL;
1380 1.36 tls int error = EINVAL;
1381 1.36 tls int in, out, size, i, req;
1382 1.36 tls
1383 1.36 tls for (req = 0; req < count; req++) {
1384 1.42 christos if (kop[req].crk_iparams + kop[req].crk_oparams > CRK_MAXPARAM)
1385 1.42 christos return EFBIG;
1386 1.36 tls
1387 1.36 tls in = kop[req].crk_iparams;
1388 1.36 tls out = kop[req].crk_oparams;
1389 1.36 tls switch (kop[req].crk_op) {
1390 1.36 tls case CRK_MOD_EXP:
1391 1.36 tls if (in == 3 && 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_EXP_CRT:
1396 1.36 tls if (in == 6 && 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 case CRK_DSA_SIGN:
1401 1.36 tls if (in == 5 && out == 2)
1402 1.36 tls break;
1403 1.36 tls kop[req].crk_status = EINVAL;
1404 1.36 tls continue;
1405 1.36 tls case CRK_DSA_VERIFY:
1406 1.36 tls if (in == 7 && out == 0)
1407 1.36 tls break;
1408 1.36 tls kop[req].crk_status = EINVAL;
1409 1.36 tls continue;
1410 1.36 tls case CRK_DH_COMPUTE_KEY:
1411 1.36 tls if (in == 3 && out == 1)
1412 1.36 tls break;
1413 1.36 tls kop[req].crk_status = EINVAL;
1414 1.36 tls continue;
1415 1.36 tls case CRK_MOD_ADD:
1416 1.36 tls if (in == 3 && out == 1)
1417 1.36 tls break;
1418 1.36 tls kop[req].crk_status = EINVAL;
1419 1.36 tls continue;
1420 1.36 tls case CRK_MOD_ADDINV:
1421 1.36 tls if (in == 2 && out == 1)
1422 1.36 tls break;
1423 1.36 tls kop[req].crk_status = EINVAL;
1424 1.36 tls continue;
1425 1.36 tls case CRK_MOD_SUB:
1426 1.36 tls if (in == 3 && out == 1)
1427 1.36 tls break;
1428 1.36 tls kop[req].crk_status = EINVAL;
1429 1.36 tls continue;
1430 1.36 tls case CRK_MOD_MULT:
1431 1.36 tls if (in == 3 && out == 1)
1432 1.85 msaitoh break;
1433 1.36 tls kop[req].crk_status = EINVAL;
1434 1.36 tls continue;
1435 1.36 tls case CRK_MOD_MULTINV:
1436 1.36 tls if (in == 2 && out == 1)
1437 1.36 tls break;
1438 1.36 tls kop[req].crk_status = EINVAL;
1439 1.36 tls continue;
1440 1.36 tls case CRK_MOD:
1441 1.36 tls if (in == 2 && out == 1)
1442 1.36 tls break;
1443 1.36 tls kop[req].crk_status = EINVAL;
1444 1.36 tls continue;
1445 1.36 tls default:
1446 1.36 tls kop[req].crk_status = EINVAL;
1447 1.36 tls continue;
1448 1.36 tls }
1449 1.36 tls
1450 1.36 tls krp = pool_get(&cryptkop_pool, PR_WAITOK);
1451 1.42 christos (void)memset(krp, 0, sizeof *krp);
1452 1.36 tls cv_init(&krp->krp_cv, "crykdev");
1453 1.36 tls krp->krp_op = kop[req].crk_op;
1454 1.36 tls krp->krp_status = kop[req].crk_status;
1455 1.36 tls krp->krp_iparams = kop[req].crk_iparams;
1456 1.36 tls krp->krp_oparams = kop[req].crk_oparams;
1457 1.36 tls krp->krp_status = 0;
1458 1.36 tls krp->krp_callback =
1459 1.36 tls (int (*) (struct cryptkop *)) cryptodevkey_mcb;
1460 1.42 christos (void)memcpy(krp->crk_param, kop[req].crk_param,
1461 1.42 christos sizeof(kop[req].crk_param));
1462 1.36 tls
1463 1.36 tls krp->krp_flags = CRYPTO_F_CBIMM;
1464 1.36 tls
1465 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++)
1466 1.36 tls krp->krp_param[i].crp_nbits =
1467 1.36 tls kop[req].crk_param[i].crp_nbits;
1468 1.36 tls for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
1469 1.36 tls size = (krp->krp_param[i].crp_nbits + 7) / 8;
1470 1.36 tls if (size == 0)
1471 1.36 tls continue;
1472 1.36 tls krp->krp_param[i].crp_p =
1473 1.36 tls kmem_alloc(size, KM_SLEEP);
1474 1.36 tls if (i >= krp->krp_iparams)
1475 1.36 tls continue;
1476 1.42 christos kop[req].crk_status =
1477 1.42 christos copyin(kop[req].crk_param[i].crp_p,
1478 1.42 christos krp->krp_param[i].crp_p, size);
1479 1.36 tls if (kop[req].crk_status)
1480 1.36 tls goto fail;
1481 1.36 tls }
1482 1.36 tls krp->fcrp = fcr;
1483 1.36 tls
1484 1.36 tls kop[req].crk_reqid = atomic_inc_32_nv(&(fcr->requestid));
1485 1.36 tls krp->krp_reqid = kop[req].crk_reqid;
1486 1.36 tls krp->krp_usropaque = kop[req].crk_opaque;
1487 1.36 tls
1488 1.36 tls kop[req].crk_status = crypto_kdispatch(krp);
1489 1.36 tls if (kop[req].crk_status != 0) {
1490 1.36 tls goto fail;
1491 1.36 tls }
1492 1.36 tls
1493 1.36 tls fail:
1494 1.36 tls if(kop[req].crk_status) {
1495 1.36 tls if (krp) {
1496 1.36 tls kop[req].crk_status = krp->krp_status;
1497 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++) {
1498 1.36 tls struct crparam *kp =
1499 1.36 tls &(krp->krp_param[i]);
1500 1.36 tls if (kp->crp_p) {
1501 1.36 tls size = (kp->crp_nbits + 7) / 8;
1502 1.36 tls KASSERT(size > 0);
1503 1.36 tls memset(kp->crp_p, 0, size);
1504 1.36 tls kmem_free(kp->crp_p, size);
1505 1.36 tls }
1506 1.36 tls }
1507 1.45 darran cv_destroy(&krp->krp_cv);
1508 1.36 tls pool_put(&cryptkop_pool, krp);
1509 1.36 tls }
1510 1.36 tls }
1511 1.36 tls error = 0;
1512 1.36 tls }
1513 1.36 tls DPRINTF(("cryptodev_key: error=0x%08x\n", error));
1514 1.42 christos return error;
1515 1.36 tls }
1516 1.36 tls
1517 1.46 darran int
1518 1.45 darran cryptodev_session(struct fcrypt *fcr, struct session_op *sop)
1519 1.45 darran {
1520 1.36 tls struct cryptoini cria, crie;
1521 1.46 darran struct cryptoini cric; /* compressor */
1522 1.46 darran struct cryptoini *crihead = NULL;
1523 1.54 drochner const struct enc_xform *txform = NULL;
1524 1.54 drochner const struct auth_hash *thash = NULL;
1525 1.54 drochner const struct comp_algo *tcomp = NULL;
1526 1.36 tls struct csession *cse;
1527 1.36 tls u_int64_t sid;
1528 1.36 tls int error = 0;
1529 1.36 tls
1530 1.46 darran DPRINTF(("cryptodev_session() cipher=%d, mac=%d\n", sop->cipher, sop->mac));
1531 1.46 darran
1532 1.36 tls /* XXX there must be a way to not embed the list of xforms here */
1533 1.36 tls switch (sop->cipher) {
1534 1.36 tls case 0:
1535 1.36 tls break;
1536 1.36 tls case CRYPTO_DES_CBC:
1537 1.36 tls txform = &enc_xform_des;
1538 1.36 tls break;
1539 1.36 tls case CRYPTO_3DES_CBC:
1540 1.36 tls txform = &enc_xform_3des;
1541 1.36 tls break;
1542 1.36 tls case CRYPTO_BLF_CBC:
1543 1.36 tls txform = &enc_xform_blf;
1544 1.36 tls break;
1545 1.36 tls case CRYPTO_CAST_CBC:
1546 1.36 tls txform = &enc_xform_cast5;
1547 1.52 hubertf break;
1548 1.36 tls case CRYPTO_SKIPJACK_CBC:
1549 1.36 tls txform = &enc_xform_skipjack;
1550 1.36 tls break;
1551 1.36 tls case CRYPTO_AES_CBC:
1552 1.36 tls txform = &enc_xform_rijndael128;
1553 1.36 tls break;
1554 1.60 drochner case CRYPTO_CAMELLIA_CBC:
1555 1.60 drochner txform = &enc_xform_camellia;
1556 1.60 drochner break;
1557 1.59 drochner case CRYPTO_AES_CTR:
1558 1.59 drochner txform = &enc_xform_aes_ctr;
1559 1.59 drochner break;
1560 1.66 drochner case CRYPTO_AES_GCM_16:
1561 1.66 drochner txform = &enc_xform_aes_gcm;
1562 1.66 drochner break;
1563 1.66 drochner case CRYPTO_AES_GMAC:
1564 1.66 drochner txform = &enc_xform_aes_gmac;
1565 1.66 drochner break;
1566 1.36 tls case CRYPTO_NULL_CBC:
1567 1.36 tls txform = &enc_xform_null;
1568 1.36 tls break;
1569 1.36 tls case CRYPTO_ARC4:
1570 1.36 tls txform = &enc_xform_arc4;
1571 1.36 tls break;
1572 1.36 tls default:
1573 1.36 tls DPRINTF(("Invalid cipher %d\n", sop->cipher));
1574 1.36 tls return EINVAL;
1575 1.36 tls }
1576 1.36 tls
1577 1.46 darran switch (sop->comp_alg) {
1578 1.46 darran case 0:
1579 1.46 darran break;
1580 1.46 darran case CRYPTO_DEFLATE_COMP:
1581 1.46 darran tcomp = &comp_algo_deflate;
1582 1.46 darran break;
1583 1.46 darran case CRYPTO_GZIP_COMP:
1584 1.46 darran tcomp = &comp_algo_gzip;
1585 1.46 darran DPRINTF(("cryptodev_session() tcomp for GZIP\n"));
1586 1.46 darran break;
1587 1.46 darran default:
1588 1.46 darran DPRINTF(("Invalid compression alg %d\n", sop->comp_alg));
1589 1.46 darran return EINVAL;
1590 1.46 darran }
1591 1.46 darran
1592 1.36 tls switch (sop->mac) {
1593 1.36 tls case 0:
1594 1.36 tls break;
1595 1.36 tls case CRYPTO_MD5_HMAC:
1596 1.36 tls thash = &auth_hash_hmac_md5;
1597 1.36 tls break;
1598 1.36 tls case CRYPTO_SHA1_HMAC:
1599 1.36 tls thash = &auth_hash_hmac_sha1;
1600 1.36 tls break;
1601 1.36 tls case CRYPTO_MD5_HMAC_96:
1602 1.36 tls thash = &auth_hash_hmac_md5_96;
1603 1.36 tls break;
1604 1.36 tls case CRYPTO_SHA1_HMAC_96:
1605 1.36 tls thash = &auth_hash_hmac_sha1_96;
1606 1.36 tls break;
1607 1.36 tls case CRYPTO_SHA2_HMAC:
1608 1.36 tls /* XXX switching on key length seems questionable */
1609 1.36 tls if (sop->mackeylen == auth_hash_hmac_sha2_256.keysize) {
1610 1.36 tls thash = &auth_hash_hmac_sha2_256;
1611 1.36 tls } else if (sop->mackeylen == auth_hash_hmac_sha2_384.keysize) {
1612 1.36 tls thash = &auth_hash_hmac_sha2_384;
1613 1.36 tls } else if (sop->mackeylen == auth_hash_hmac_sha2_512.keysize) {
1614 1.36 tls thash = &auth_hash_hmac_sha2_512;
1615 1.36 tls } else {
1616 1.36 tls DPRINTF(("Invalid mackeylen %d\n", sop->mackeylen));
1617 1.36 tls return EINVAL;
1618 1.36 tls }
1619 1.36 tls break;
1620 1.36 tls case CRYPTO_RIPEMD160_HMAC:
1621 1.36 tls thash = &auth_hash_hmac_ripemd_160;
1622 1.36 tls break;
1623 1.36 tls case CRYPTO_RIPEMD160_HMAC_96:
1624 1.36 tls thash = &auth_hash_hmac_ripemd_160_96;
1625 1.36 tls break;
1626 1.36 tls case CRYPTO_MD5:
1627 1.36 tls thash = &auth_hash_md5;
1628 1.36 tls break;
1629 1.36 tls case CRYPTO_SHA1:
1630 1.36 tls thash = &auth_hash_sha1;
1631 1.36 tls break;
1632 1.63 drochner case CRYPTO_AES_XCBC_MAC_96:
1633 1.63 drochner thash = &auth_hash_aes_xcbc_mac_96;
1634 1.63 drochner break;
1635 1.66 drochner case CRYPTO_AES_128_GMAC:
1636 1.66 drochner thash = &auth_hash_gmac_aes_128;
1637 1.66 drochner break;
1638 1.66 drochner case CRYPTO_AES_192_GMAC:
1639 1.66 drochner thash = &auth_hash_gmac_aes_192;
1640 1.66 drochner break;
1641 1.66 drochner case CRYPTO_AES_256_GMAC:
1642 1.66 drochner thash = &auth_hash_gmac_aes_256;
1643 1.66 drochner break;
1644 1.36 tls case CRYPTO_NULL_HMAC:
1645 1.36 tls thash = &auth_hash_null;
1646 1.36 tls break;
1647 1.36 tls default:
1648 1.36 tls DPRINTF(("Invalid mac %d\n", sop->mac));
1649 1.42 christos return EINVAL;
1650 1.36 tls }
1651 1.36 tls
1652 1.36 tls memset(&crie, 0, sizeof(crie));
1653 1.36 tls memset(&cria, 0, sizeof(cria));
1654 1.46 darran memset(&cric, 0, sizeof(cric));
1655 1.46 darran
1656 1.46 darran if (tcomp) {
1657 1.46 darran cric.cri_alg = tcomp->type;
1658 1.46 darran cric.cri_klen = 0;
1659 1.46 darran DPRINTF(("tcomp->type = %d\n", tcomp->type));
1660 1.46 darran
1661 1.46 darran crihead = &cric;
1662 1.65 drochner if (txform) {
1663 1.65 drochner cric.cri_next = &crie;
1664 1.65 drochner } else if (thash) {
1665 1.46 darran cric.cri_next = &cria;
1666 1.46 darran }
1667 1.46 darran }
1668 1.36 tls
1669 1.36 tls if (txform) {
1670 1.36 tls crie.cri_alg = txform->type;
1671 1.36 tls crie.cri_klen = sop->keylen * 8;
1672 1.36 tls if (sop->keylen > txform->maxkey ||
1673 1.36 tls sop->keylen < txform->minkey) {
1674 1.36 tls DPRINTF(("keylen %d not in [%d,%d]\n",
1675 1.42 christos sop->keylen, txform->minkey, txform->maxkey));
1676 1.42 christos error = EINVAL;
1677 1.36 tls goto bail;
1678 1.36 tls }
1679 1.36 tls
1680 1.36 tls crie.cri_key = malloc(crie.cri_klen / 8, M_XDATA, M_WAITOK);
1681 1.42 christos if ((error = copyin(sop->key, crie.cri_key, crie.cri_klen / 8)))
1682 1.36 tls goto bail;
1683 1.46 darran if (!crihead) {
1684 1.46 darran crihead = &crie;
1685 1.46 darran }
1686 1.65 drochner if (thash)
1687 1.65 drochner crie.cri_next = &cria;
1688 1.46 darran }
1689 1.36 tls
1690 1.36 tls if (thash) {
1691 1.36 tls cria.cri_alg = thash->type;
1692 1.36 tls cria.cri_klen = sop->mackeylen * 8;
1693 1.36 tls if (sop->mackeylen != thash->keysize) {
1694 1.36 tls DPRINTF(("mackeylen %d != keysize %d\n",
1695 1.42 christos sop->mackeylen, thash->keysize));
1696 1.36 tls error = EINVAL;
1697 1.36 tls goto bail;
1698 1.36 tls }
1699 1.36 tls if (cria.cri_klen) {
1700 1.36 tls cria.cri_key = malloc(cria.cri_klen / 8, M_XDATA,
1701 1.42 christos M_WAITOK);
1702 1.36 tls if ((error = copyin(sop->mackey, cria.cri_key,
1703 1.42 christos cria.cri_klen / 8))) {
1704 1.36 tls goto bail;
1705 1.36 tls }
1706 1.36 tls }
1707 1.46 darran if (!crihead) {
1708 1.46 darran crihead = &cria;
1709 1.46 darran }
1710 1.36 tls }
1711 1.46 darran
1712 1.46 darran error = crypto_newsession(&sid, crihead, crypto_devallowsoft);
1713 1.36 tls if (!error) {
1714 1.83 prlw1 DPRINTF(("cryptodev_session: got session %d\n", (uint32_t)sid));
1715 1.36 tls cse = csecreate(fcr, sid, crie.cri_key, crie.cri_klen,
1716 1.46 darran cria.cri_key, cria.cri_klen, (txform ? sop->cipher : 0), sop->mac,
1717 1.46 darran (tcomp ? sop->comp_alg : 0), txform, thash, tcomp);
1718 1.36 tls if (cse != NULL) {
1719 1.36 tls sop->ses = cse->ses;
1720 1.36 tls } else {
1721 1.36 tls DPRINTF(("csecreate failed\n"));
1722 1.36 tls crypto_freesession(sid);
1723 1.36 tls error = EINVAL;
1724 1.36 tls }
1725 1.36 tls } else {
1726 1.36 tls DPRINTF(("SIOCSESSION violates kernel parameters %d\n",
1727 1.42 christos error));
1728 1.36 tls }
1729 1.36 tls bail:
1730 1.36 tls if (error) {
1731 1.36 tls if (crie.cri_key) {
1732 1.36 tls memset(crie.cri_key, 0, crie.cri_klen / 8);
1733 1.36 tls free(crie.cri_key, M_XDATA);
1734 1.36 tls }
1735 1.36 tls if (cria.cri_key) {
1736 1.36 tls memset(cria.cri_key, 0, cria.cri_klen / 8);
1737 1.36 tls free(cria.cri_key, M_XDATA);
1738 1.36 tls }
1739 1.36 tls }
1740 1.36 tls return error;
1741 1.36 tls }
1742 1.36 tls
1743 1.46 darran int
1744 1.36 tls cryptodev_msession(struct fcrypt *fcr, struct session_n_op *sn_ops,
1745 1.36 tls int count)
1746 1.36 tls {
1747 1.36 tls int i;
1748 1.36 tls
1749 1.36 tls for (i = 0; i < count; i++, sn_ops++) {
1750 1.36 tls struct session_op s_op;
1751 1.36 tls s_op.cipher = sn_ops->cipher;
1752 1.36 tls s_op.mac = sn_ops->mac;
1753 1.36 tls s_op.keylen = sn_ops->keylen;
1754 1.36 tls s_op.key = sn_ops->key;
1755 1.36 tls s_op.mackeylen = sn_ops->mackeylen;
1756 1.36 tls s_op.mackey = sn_ops->mackey;
1757 1.36 tls
1758 1.36 tls sn_ops->status = cryptodev_session(fcr, &s_op);
1759 1.36 tls sn_ops->ses = s_op.ses;
1760 1.36 tls }
1761 1.36 tls
1762 1.36 tls return 0;
1763 1.36 tls }
1764 1.36 tls
1765 1.36 tls static int
1766 1.36 tls cryptodev_msessionfin(struct fcrypt *fcr, int count, u_int32_t *sesid)
1767 1.36 tls {
1768 1.36 tls struct csession *cse;
1769 1.36 tls int req, error = 0;
1770 1.36 tls
1771 1.57 drochner mutex_enter(&crypto_mtx);
1772 1.36 tls for(req = 0; req < count; req++) {
1773 1.36 tls cse = csefind(fcr, sesid[req]);
1774 1.36 tls if (cse == NULL)
1775 1.36 tls continue;
1776 1.36 tls csedelete(fcr, cse);
1777 1.57 drochner mutex_exit(&crypto_mtx);
1778 1.36 tls error = csefree(cse);
1779 1.57 drochner mutex_enter(&crypto_mtx);
1780 1.36 tls }
1781 1.57 drochner mutex_exit(&crypto_mtx);
1782 1.69 martin return error;
1783 1.36 tls }
1784 1.36 tls
1785 1.36 tls /*
1786 1.42 christos * collect as many completed requests as are availble, or count completed
1787 1.42 christos * requests whichever is less.
1788 1.36 tls * return the number of requests.
1789 1.36 tls */
1790 1.36 tls static int
1791 1.36 tls cryptodev_getmstatus(struct fcrypt *fcr, struct crypt_result *crypt_res,
1792 1.42 christos int count)
1793 1.36 tls {
1794 1.36 tls struct cryptop *crp = NULL;
1795 1.36 tls struct cryptkop *krp = NULL;
1796 1.36 tls struct csession *cse;
1797 1.36 tls int i, size, req = 0;
1798 1.36 tls int completed=0;
1799 1.36 tls
1800 1.46 darran /* On queue so nobody else can grab them
1801 1.46 darran * and copyout can be delayed-- no locking */
1802 1.46 darran TAILQ_HEAD(, cryptop) crp_delfree_q =
1803 1.46 darran TAILQ_HEAD_INITIALIZER(crp_delfree_q);
1804 1.46 darran TAILQ_HEAD(, cryptkop) krp_delfree_q =
1805 1.46 darran TAILQ_HEAD_INITIALIZER(krp_delfree_q);
1806 1.36 tls
1807 1.36 tls /* at this point we do not know which response user is requesting for
1808 1.36 tls * (symmetric or asymmetric) so we copyout one from each i.e if the
1809 1.36 tls * count is 2 then 1 from symmetric and 1 from asymmetric queue and
1810 1.36 tls * if 3 then 2 symmetric and 1 asymmetric and so on */
1811 1.46 darran
1812 1.46 darran /* pull off a list of requests while protected from changes */
1813 1.57 drochner mutex_enter(&crypto_mtx);
1814 1.46 darran while (req < count) {
1815 1.36 tls crp = TAILQ_FIRST(&fcr->crp_ret_mq);
1816 1.46 darran if (crp) {
1817 1.46 darran TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
1818 1.46 darran TAILQ_INSERT_TAIL(&crp_delfree_q, crp, crp_next);
1819 1.36 tls cse = (struct csession *)crp->crp_opaque;
1820 1.46 darran
1821 1.46 darran /* see if the session is still valid */
1822 1.36 tls cse = csefind(fcr, cse->ses);
1823 1.46 darran if (cse != NULL) {
1824 1.46 darran crypt_res[req].status = 0;
1825 1.46 darran } else {
1826 1.36 tls DPRINTF(("csefind failed\n"));
1827 1.36 tls crypt_res[req].status = EINVAL;
1828 1.46 darran }
1829 1.46 darran req++;
1830 1.46 darran }
1831 1.46 darran if(req < count) {
1832 1.46 darran crypt_res[req].status = 0;
1833 1.46 darran krp = TAILQ_FIRST(&fcr->crp_ret_mkq);
1834 1.46 darran if (krp) {
1835 1.46 darran TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
1836 1.46 darran TAILQ_INSERT_TAIL(&krp_delfree_q, krp, krp_next);
1837 1.46 darran req++;
1838 1.46 darran }
1839 1.46 darran }
1840 1.46 darran }
1841 1.57 drochner mutex_exit(&crypto_mtx);
1842 1.46 darran
1843 1.46 darran /* now do all the work outside the mutex */
1844 1.46 darran for(req=0; req < count ;) {
1845 1.46 darran crp = TAILQ_FIRST(&crp_delfree_q);
1846 1.46 darran if (crp) {
1847 1.46 darran if (crypt_res[req].status != 0) {
1848 1.46 darran /* csefind failed during collection */
1849 1.36 tls goto bail;
1850 1.36 tls }
1851 1.46 darran cse = (struct csession *)crp->crp_opaque;
1852 1.46 darran crypt_res[req].reqid = crp->crp_reqid;
1853 1.46 darran crypt_res[req].opaque = crp->crp_usropaque;
1854 1.46 darran completed++;
1855 1.36 tls
1856 1.36 tls if (crp->crp_etype != 0) {
1857 1.36 tls crypt_res[req].status = crp->crp_etype;
1858 1.36 tls goto bail;
1859 1.36 tls }
1860 1.36 tls
1861 1.36 tls if (cse->error) {
1862 1.36 tls crypt_res[req].status = cse->error;
1863 1.36 tls goto bail;
1864 1.36 tls }
1865 1.36 tls
1866 1.42 christos if (crp->dst && (crypt_res[req].status =
1867 1.42 christos copyout(crp->uio.uio_iov[0].iov_base, crp->dst,
1868 1.42 christos crp->len)))
1869 1.36 tls goto bail;
1870 1.36 tls
1871 1.42 christos if (crp->mac && (crypt_res[req].status =
1872 1.42 christos copyout(crp->crp_mac, crp->mac,
1873 1.42 christos cse->thash->authsize)))
1874 1.36 tls goto bail;
1875 1.46 darran
1876 1.36 tls bail:
1877 1.46 darran TAILQ_REMOVE(&crp_delfree_q, crp, crp_next);
1878 1.46 darran kmem_free(crp->uio.uio_iov[0].iov_base,
1879 1.46 darran crp->uio.uio_iov[0].iov_len);
1880 1.46 darran crypto_freereq(crp);
1881 1.36 tls req++;
1882 1.36 tls }
1883 1.36 tls
1884 1.46 darran if (req < count) {
1885 1.46 darran krp = TAILQ_FIRST(&krp_delfree_q);
1886 1.36 tls if (krp) {
1887 1.36 tls crypt_res[req].reqid = krp->krp_reqid;
1888 1.36 tls crypt_res[req].opaque = krp->krp_usropaque;
1889 1.36 tls completed++;
1890 1.36 tls if (krp->krp_status != 0) {
1891 1.36 tls DPRINTF(("cryptodev_key: "
1892 1.42 christos "krp->krp_status 0x%08x\n",
1893 1.42 christos krp->krp_status));
1894 1.42 christos crypt_res[req].status = krp->krp_status;
1895 1.36 tls goto fail;
1896 1.36 tls }
1897 1.36 tls
1898 1.36 tls for (i = krp->krp_iparams; i < krp->krp_iparams
1899 1.42 christos + krp->krp_oparams; i++) {
1900 1.36 tls size = (krp->krp_param[i].crp_nbits
1901 1.42 christos + 7) / 8;
1902 1.36 tls if (size == 0)
1903 1.36 tls continue;
1904 1.36 tls crypt_res[req].status = copyout
1905 1.36 tls (krp->krp_param[i].crp_p,
1906 1.36 tls krp->crk_param[i].crp_p, size);
1907 1.36 tls if (crypt_res[req].status) {
1908 1.36 tls DPRINTF(("cryptodev_key: "
1909 1.42 christos "copyout oparam %d failed, "
1910 1.42 christos "error=%d\n",
1911 1.42 christos i - krp->krp_iparams,
1912 1.42 christos crypt_res[req].status));
1913 1.36 tls goto fail;
1914 1.36 tls }
1915 1.36 tls }
1916 1.36 tls fail:
1917 1.46 darran TAILQ_REMOVE(&krp_delfree_q, krp, krp_next);
1918 1.36 tls /* not sure what to do for this */
1919 1.36 tls /* kop[req].crk_status = krp->krp_status; */
1920 1.46 darran for (i = 0; i < CRK_MAXPARAM; i++) {
1921 1.46 darran struct crparam *kp = &(krp->krp_param[i]);
1922 1.46 darran if (kp->crp_p) {
1923 1.46 darran size = (kp->crp_nbits + 7) / 8;
1924 1.46 darran KASSERT(size > 0);
1925 1.46 darran (void)memset(kp->crp_p, 0, size);
1926 1.46 darran kmem_free(kp->crp_p, size);
1927 1.46 darran }
1928 1.46 darran }
1929 1.46 darran cv_destroy(&krp->krp_cv);
1930 1.46 darran pool_put(&cryptkop_pool, krp);
1931 1.46 darran req++;
1932 1.36 tls }
1933 1.36 tls }
1934 1.36 tls }
1935 1.36 tls
1936 1.85 msaitoh return completed;
1937 1.36 tls }
1938 1.36 tls
1939 1.36 tls static int
1940 1.36 tls cryptodev_getstatus (struct fcrypt *fcr, struct crypt_result *crypt_res)
1941 1.36 tls {
1942 1.45 darran struct cryptop *crp = NULL, *cnext;
1943 1.45 darran struct cryptkop *krp = NULL, *knext;
1944 1.36 tls struct csession *cse;
1945 1.36 tls int i, size, req = 0;
1946 1.36 tls
1947 1.85 msaitoh mutex_enter(&crypto_mtx);
1948 1.36 tls /* Here we dont know for which request the user is requesting the
1949 1.36 tls * response so checking in both the queues */
1950 1.45 darran TAILQ_FOREACH_SAFE(crp, &fcr->crp_ret_mq, crp_next, cnext) {
1951 1.36 tls if(crp && (crp->crp_reqid == crypt_res->reqid)) {
1952 1.36 tls cse = (struct csession *)crp->crp_opaque;
1953 1.36 tls crypt_res->opaque = crp->crp_usropaque;
1954 1.36 tls cse = csefind(fcr, cse->ses);
1955 1.36 tls if (cse == NULL) {
1956 1.36 tls DPRINTF(("csefind failed\n"));
1957 1.36 tls crypt_res->status = EINVAL;
1958 1.36 tls goto bail;
1959 1.36 tls }
1960 1.36 tls
1961 1.36 tls if (crp->crp_etype != 0) {
1962 1.36 tls crypt_res->status = crp->crp_etype;
1963 1.36 tls goto bail;
1964 1.36 tls }
1965 1.36 tls
1966 1.36 tls if (cse->error) {
1967 1.36 tls crypt_res->status = cse->error;
1968 1.36 tls goto bail;
1969 1.36 tls }
1970 1.36 tls
1971 1.42 christos if (crp->dst && (crypt_res->status =
1972 1.42 christos copyout(crp->uio.uio_iov[0].iov_base,
1973 1.42 christos crp->dst, crp->len)))
1974 1.36 tls goto bail;
1975 1.36 tls
1976 1.42 christos if (crp->mac && (crypt_res->status =
1977 1.42 christos copyout(crp->crp_mac, crp->mac,
1978 1.42 christos cse->thash->authsize)))
1979 1.36 tls goto bail;
1980 1.36 tls bail:
1981 1.36 tls TAILQ_REMOVE(&fcr->crp_ret_mq, crp, crp_next);
1982 1.36 tls
1983 1.57 drochner mutex_exit(&crypto_mtx);
1984 1.36 tls crypto_freereq(crp);
1985 1.36 tls return 0;
1986 1.36 tls }
1987 1.36 tls }
1988 1.36 tls
1989 1.45 darran TAILQ_FOREACH_SAFE(krp, &fcr->crp_ret_mkq, krp_next, knext) {
1990 1.36 tls if(krp && (krp->krp_reqid == crypt_res->reqid)) {
1991 1.36 tls crypt_res[req].opaque = krp->krp_usropaque;
1992 1.36 tls if (krp->krp_status != 0) {
1993 1.36 tls DPRINTF(("cryptodev_key: "
1994 1.42 christos "krp->krp_status 0x%08x\n",
1995 1.42 christos krp->krp_status));
1996 1.36 tls crypt_res[req].status = krp->krp_status;
1997 1.36 tls goto fail;
1998 1.36 tls }
1999 1.36 tls
2000 1.42 christos for (i = krp->krp_iparams; i < krp->krp_iparams +
2001 1.42 christos krp->krp_oparams; i++) {
2002 1.36 tls size = (krp->krp_param[i].crp_nbits + 7) / 8;
2003 1.36 tls if (size == 0)
2004 1.36 tls continue;
2005 1.42 christos crypt_res[req].status = copyout(
2006 1.42 christos krp->krp_param[i].crp_p,
2007 1.42 christos krp->crk_param[i].crp_p, size);
2008 1.36 tls if (crypt_res[req].status) {
2009 1.36 tls DPRINTF(("cryptodev_key: copyout oparam"
2010 1.42 christos "%d failed, error=%d\n",
2011 1.42 christos i - krp->krp_iparams,
2012 1.42 christos crypt_res[req].status));
2013 1.36 tls goto fail;
2014 1.36 tls }
2015 1.36 tls }
2016 1.36 tls fail:
2017 1.36 tls TAILQ_REMOVE(&fcr->crp_ret_mkq, krp, krp_next);
2018 1.57 drochner mutex_exit(&crypto_mtx);
2019 1.36 tls /* not sure what to do for this */
2020 1.36 tls /* kop[req].crk_status = krp->krp_status; */
2021 1.36 tls for (i = 0; i < CRK_MAXPARAM; i++) {
2022 1.36 tls struct crparam *kp = &(krp->krp_param[i]);
2023 1.36 tls if (kp->crp_p) {
2024 1.36 tls size = (kp->crp_nbits + 7) / 8;
2025 1.36 tls KASSERT(size > 0);
2026 1.36 tls memset(kp->crp_p, 0, size);
2027 1.36 tls kmem_free(kp->crp_p, size);
2028 1.36 tls }
2029 1.36 tls }
2030 1.45 darran cv_destroy(&krp->krp_cv);
2031 1.36 tls pool_put(&cryptkop_pool, krp);
2032 1.36 tls return 0;
2033 1.36 tls }
2034 1.36 tls }
2035 1.57 drochner mutex_exit(&crypto_mtx);
2036 1.85 msaitoh return EINPROGRESS;
2037 1.36 tls }
2038 1.36 tls
2039 1.36 tls static int
2040 1.48 christos cryptof_stat(struct file *fp, struct stat *st)
2041 1.48 christos {
2042 1.81 matt struct fcrypt *fcr = fp->f_fcrypt;
2043 1.48 christos
2044 1.68 joerg (void)memset(st, 0, sizeof(*st));
2045 1.49 christos
2046 1.57 drochner mutex_enter(&crypto_mtx);
2047 1.48 christos st->st_dev = makedev(cdevsw_lookup_major(&crypto_cdevsw), fcr->sesn);
2048 1.48 christos st->st_atimespec = fcr->atime;
2049 1.48 christos st->st_mtimespec = fcr->mtime;
2050 1.48 christos st->st_ctimespec = st->st_birthtimespec = fcr->btime;
2051 1.49 christos st->st_uid = kauth_cred_geteuid(fp->f_cred);
2052 1.49 christos st->st_gid = kauth_cred_getegid(fp->f_cred);
2053 1.57 drochner mutex_exit(&crypto_mtx);
2054 1.49 christos
2055 1.48 christos return 0;
2056 1.48 christos }
2057 1.48 christos
2058 1.48 christos static int
2059 1.36 tls cryptof_poll(struct file *fp, int events)
2060 1.36 tls {
2061 1.81 matt struct fcrypt *fcr = fp->f_fcrypt;
2062 1.38 rmind int revents = 0;
2063 1.36 tls
2064 1.36 tls if (!(events & (POLLIN | POLLRDNORM))) {
2065 1.36 tls /* only support read and POLLIN */
2066 1.36 tls return 0;
2067 1.36 tls }
2068 1.36 tls
2069 1.57 drochner mutex_enter(&crypto_mtx);
2070 1.36 tls if (TAILQ_EMPTY(&fcr->crp_ret_mq) && TAILQ_EMPTY(&fcr->crp_ret_mkq)) {
2071 1.38 rmind /* no completed requests pending, save the poll for later */
2072 1.36 tls selrecord(curlwp, &fcr->sinfo);
2073 1.36 tls } else {
2074 1.36 tls /* let the app(s) know that there are completed requests */
2075 1.38 rmind revents = events & (POLLIN | POLLRDNORM);
2076 1.36 tls }
2077 1.57 drochner mutex_exit(&crypto_mtx);
2078 1.38 rmind
2079 1.38 rmind return revents;
2080 1.36 tls }
2081 1.36 tls
2082 1.15 thorpej /*
2083 1.15 thorpej * Pseudo-device initialization routine for /dev/crypto
2084 1.15 thorpej */
2085 1.15 thorpej void
2086 1.25 christos cryptoattach(int num)
2087 1.15 thorpej {
2088 1.80 skrll crypto_init();
2089 1.80 skrll
2090 1.29 tls pool_init(&fcrpl, sizeof(struct fcrypt), 0, 0, 0, "fcrpl",
2091 1.42 christos NULL, IPL_NET); /* XXX IPL_NET ("splcrypto") */
2092 1.29 tls pool_init(&csepl, sizeof(struct csession), 0, 0, 0, "csepl",
2093 1.42 christos NULL, IPL_NET); /* XXX IPL_NET ("splcrypto") */
2094 1.29 tls
2095 1.29 tls /*
2096 1.29 tls * Preallocate space for 64 users, with 5 sessions each.
2097 1.29 tls * (consider that a TLS protocol session requires at least
2098 1.29 tls * 3DES, MD5, and SHA1 (both hashes are used in the PRF) for
2099 1.29 tls * the negotiation, plus HMAC_SHA1 for the actual SSL records,
2100 1.29 tls * consuming one session here for each algorithm.
2101 1.29 tls */
2102 1.29 tls pool_prime(&fcrpl, 64);
2103 1.29 tls pool_prime(&csepl, 64 * 5);
2104 1.15 thorpej }
2105 1.70 pgoyette
2106 1.70 pgoyette void crypto_attach(device_t, device_t, void *);
2107 1.70 pgoyette
2108 1.70 pgoyette void
2109 1.70 pgoyette crypto_attach(device_t parent, device_t self, void * opaque)
2110 1.70 pgoyette {
2111 1.70 pgoyette
2112 1.70 pgoyette cryptoattach(0);
2113 1.70 pgoyette }
2114 1.70 pgoyette
2115 1.70 pgoyette int crypto_detach(device_t, int);
2116 1.70 pgoyette
2117 1.70 pgoyette int
2118 1.70 pgoyette crypto_detach(device_t self, int num)
2119 1.70 pgoyette {
2120 1.73 pgoyette
2121 1.70 pgoyette pool_destroy(&fcrpl);
2122 1.70 pgoyette pool_destroy(&csepl);
2123 1.70 pgoyette
2124 1.70 pgoyette return 0;
2125 1.70 pgoyette }
2126 1.70 pgoyette
2127 1.70 pgoyette int crypto_match(device_t, cfdata_t, void *);
2128 1.70 pgoyette
2129 1.70 pgoyette int
2130 1.70 pgoyette crypto_match(device_t parent, cfdata_t data, void *opaque)
2131 1.70 pgoyette {
2132 1.70 pgoyette
2133 1.70 pgoyette return 1;
2134 1.70 pgoyette }
2135 1.70 pgoyette
2136 1.71 pgoyette MODULE(MODULE_CLASS_DRIVER, crypto, "opencrypto");
2137 1.70 pgoyette
2138 1.70 pgoyette CFDRIVER_DECL(crypto, DV_DULL, NULL);
2139 1.70 pgoyette
2140 1.70 pgoyette CFATTACH_DECL2_NEW(crypto, 0, crypto_match, crypto_attach, crypto_detach,
2141 1.70 pgoyette NULL, NULL, NULL);
2142 1.70 pgoyette
2143 1.71 pgoyette #ifdef _MODULE
2144 1.77 pgoyette static int cryptoloc[] = { -1, -1 };
2145 1.77 pgoyette
2146 1.77 pgoyette static struct cfdata crypto_cfdata[] = {
2147 1.77 pgoyette {
2148 1.77 pgoyette .cf_name = "crypto",
2149 1.77 pgoyette .cf_atname = "crypto",
2150 1.77 pgoyette .cf_unit = 0,
2151 1.77 pgoyette .cf_fstate = 0,
2152 1.77 pgoyette .cf_loc = cryptoloc,
2153 1.77 pgoyette .cf_flags = 0,
2154 1.77 pgoyette .cf_pspec = NULL,
2155 1.77 pgoyette },
2156 1.77 pgoyette { NULL, NULL, 0, 0, NULL, 0, NULL }
2157 1.77 pgoyette };
2158 1.71 pgoyette #endif
2159 1.70 pgoyette
2160 1.70 pgoyette static int
2161 1.70 pgoyette crypto_modcmd(modcmd_t cmd, void *arg)
2162 1.70 pgoyette {
2163 1.71 pgoyette int error = 0;
2164 1.71 pgoyette #ifdef _MODULE
2165 1.70 pgoyette devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR;
2166 1.71 pgoyette #endif
2167 1.70 pgoyette
2168 1.70 pgoyette switch (cmd) {
2169 1.70 pgoyette case MODULE_CMD_INIT:
2170 1.71 pgoyette #ifdef _MODULE
2171 1.77 pgoyette
2172 1.77 pgoyette error = config_cfdriver_attach(&crypto_cd);
2173 1.77 pgoyette if (error) {
2174 1.70 pgoyette return error;
2175 1.77 pgoyette }
2176 1.77 pgoyette
2177 1.77 pgoyette error = config_cfattach_attach(crypto_cd.cd_name, &crypto_ca);
2178 1.77 pgoyette if (error) {
2179 1.77 pgoyette config_cfdriver_detach(&crypto_cd);
2180 1.77 pgoyette aprint_error("%s: unable to register cfattach\n",
2181 1.77 pgoyette crypto_cd.cd_name);
2182 1.77 pgoyette
2183 1.77 pgoyette return error;
2184 1.77 pgoyette }
2185 1.77 pgoyette
2186 1.77 pgoyette error = config_cfdata_attach(crypto_cfdata, 1);
2187 1.77 pgoyette if (error) {
2188 1.77 pgoyette config_cfattach_detach(crypto_cd.cd_name, &crypto_ca);
2189 1.77 pgoyette config_cfdriver_detach(&crypto_cd);
2190 1.77 pgoyette aprint_error("%s: unable to register cfdata\n",
2191 1.77 pgoyette crypto_cd.cd_name);
2192 1.77 pgoyette
2193 1.77 pgoyette return error;
2194 1.77 pgoyette }
2195 1.70 pgoyette
2196 1.70 pgoyette error = devsw_attach(crypto_cd.cd_name, NULL, &bmajor,
2197 1.77 pgoyette &crypto_cdevsw, &cmajor);
2198 1.70 pgoyette if (error) {
2199 1.77 pgoyette error = config_cfdata_detach(crypto_cfdata);
2200 1.77 pgoyette if (error) {
2201 1.77 pgoyette return error;
2202 1.77 pgoyette }
2203 1.77 pgoyette config_cfattach_detach(crypto_cd.cd_name, &crypto_ca);
2204 1.77 pgoyette config_cfdriver_detach(&crypto_cd);
2205 1.70 pgoyette aprint_error("%s: unable to register devsw\n",
2206 1.70 pgoyette crypto_cd.cd_name);
2207 1.70 pgoyette
2208 1.70 pgoyette return error;
2209 1.70 pgoyette }
2210 1.70 pgoyette
2211 1.77 pgoyette (void)config_attach_pseudo(crypto_cfdata);
2212 1.71 pgoyette #endif
2213 1.70 pgoyette
2214 1.71 pgoyette return error;
2215 1.70 pgoyette case MODULE_CMD_FINI:
2216 1.71 pgoyette #ifdef _MODULE
2217 1.77 pgoyette error = config_cfdata_detach(crypto_cfdata);
2218 1.70 pgoyette if (error) {
2219 1.70 pgoyette return error;
2220 1.70 pgoyette }
2221 1.77 pgoyette
2222 1.77 pgoyette config_cfattach_detach(crypto_cd.cd_name, &crypto_ca);
2223 1.77 pgoyette config_cfdriver_detach(&crypto_cd);
2224 1.77 pgoyette devsw_detach(NULL, &crypto_cdevsw);
2225 1.71 pgoyette #endif
2226 1.70 pgoyette
2227 1.71 pgoyette return error;
2228 1.74 pgoyette #ifdef _MODULE
2229 1.74 pgoyette case MODULE_CMD_AUTOUNLOAD:
2230 1.75 pgoyette #if 0 /*
2231 1.75 pgoyette * XXX Completely disable auto-unload for now, since there is still
2232 1.75 pgoyette * XXX a (small) window where in-module ref-counting doesn't help
2233 1.75 pgoyette */
2234 1.74 pgoyette if (crypto_refcount != 0)
2235 1.75 pgoyette #endif
2236 1.74 pgoyette return EBUSY;
2237 1.74 pgoyette /* FALLTHROUGH */
2238 1.74 pgoyette #endif
2239 1.70 pgoyette default:
2240 1.70 pgoyette return ENOTTY;
2241 1.70 pgoyette }
2242 1.70 pgoyette }
2243