1 | /* $NetBSD: ocryptodev.c,v 1.6 2014/09/05 09:23:40 matt Exp $ */ |
2 | /* $FreeBSD: src/sys/opencrypto/cryptodev.c,v 1.4.2.4 2003/06/03 00:09:02 sam Exp $ */ |
3 | /* $OpenBSD: cryptodev.c,v 1.53 2002/07/10 22:21:30 mickey Exp $ */ |
4 | |
5 | /*- |
6 | * Copyright (c) 2008 The NetBSD Foundation, Inc. |
7 | * All rights reserved. |
8 | * |
9 | * This code is derived from software contributed to The NetBSD Foundation |
10 | * by Coyote Point Systems, Inc. |
11 | * |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions |
14 | * are met: |
15 | * 1. Redistributions of source code must retain the above copyright |
16 | * notice, this list of conditions and the following disclaimer. |
17 | * 2. Redistributions in binary form must reproduce the above copyright |
18 | * notice, this list of conditions and the following disclaimer in the |
19 | * documentation and/or other materials provided with the distribution. |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
22 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
23 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
24 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
31 | * POSSIBILITY OF SUCH DAMAGE. |
32 | */ |
33 | |
34 | /* |
35 | * Copyright (c) 2001 Theo de Raadt |
36 | * |
37 | * Redistribution and use in source and binary forms, with or without |
38 | * modification, are permitted provided that the following conditions |
39 | * are met: |
40 | * |
41 | * 1. Redistributions of source code must retain the above copyright |
42 | * notice, this list of conditions and the following disclaimer. |
43 | * 2. Redistributions in binary form must reproduce the above copyright |
44 | * notice, this list of conditions and the following disclaimer in the |
45 | * documentation and/or other materials provided with the distribution. |
46 | * 3. The name of the author may not be used to endorse or promote products |
47 | * derived from this software without specific prior written permission. |
48 | * |
49 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
50 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
51 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
52 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
53 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
54 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
55 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
56 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
57 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
58 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
59 | * |
60 | * Effort sponsored in part by the Defense Advanced Research Projects |
61 | * Agency (DARPA) and Air Force Research Laboratory, Air Force |
62 | * Materiel Command, USAF, under agreement number F30602-01-2-0537. |
63 | * |
64 | */ |
65 | |
66 | /* |
67 | * Implement backward compatibility IOCTLs in this module. |
68 | * |
69 | */ |
70 | |
71 | #include <sys/cdefs.h> |
72 | __KERNEL_RCSID(0, "$NetBSD: ocryptodev.c,v 1.6 2014/09/05 09:23:40 matt Exp $" ); |
73 | |
74 | #include <sys/param.h> |
75 | #include <sys/systm.h> |
76 | #include <sys/kmem.h> |
77 | #include <sys/malloc.h> |
78 | #include <sys/mbuf.h> |
79 | #include <sys/pool.h> |
80 | #include <sys/sysctl.h> |
81 | #include <sys/file.h> |
82 | #include <sys/filedesc.h> |
83 | #include <sys/errno.h> |
84 | #include <sys/md5.h> |
85 | #include <sys/sha1.h> |
86 | #include <sys/conf.h> |
87 | #include <sys/device.h> |
88 | #include <sys/kauth.h> |
89 | #include <sys/select.h> |
90 | #include <sys/poll.h> |
91 | #include <sys/atomic.h> |
92 | |
93 | #ifdef _KERNEL_OPT |
94 | #include "opt_ocf.h" |
95 | #endif |
96 | |
97 | #include <opencrypto/cryptodev.h> |
98 | #include <opencrypto/cryptodev_internal.h> |
99 | #include <opencrypto/ocryptodev.h> |
100 | #include <opencrypto/xform.h> |
101 | |
102 | static int ocryptodev_op(struct csession *, struct ocrypt_op *, |
103 | struct lwp *); |
104 | static int ocryptodev_mop(struct fcrypt *, struct ocrypt_n_op *, int, |
105 | struct lwp *); |
106 | static int ocryptodev_session(struct fcrypt *, struct osession_op *); |
107 | static int ocryptodev_msession(struct fcrypt *, struct osession_n_op *, int); |
108 | |
109 | int |
110 | ocryptof_ioctl(struct file *fp, u_long cmd, void *data) |
111 | { |
112 | struct fcrypt *fcr = fp->f_fcrypt; |
113 | struct csession *cse; |
114 | struct osession_op *osop; |
115 | struct osession_n_op *osnop; |
116 | struct ocrypt_op *ocop; |
117 | struct ocrypt_mop *omop; |
118 | struct ocrypt_n_op *ocnop; |
119 | struct ocrypt_sgop *osgop; |
120 | |
121 | int error = 0; |
122 | |
123 | switch (cmd) { |
124 | case OCIOCGSESSION: |
125 | osop = (struct osession_op *)data; |
126 | error = ocryptodev_session(fcr, osop); |
127 | break; |
128 | case CIOCNGSESSION: |
129 | osgop = (struct ocrypt_sgop *)data; |
130 | osnop = kmem_alloc((osgop->count * |
131 | sizeof(struct osession_n_op)), KM_SLEEP); |
132 | error = copyin(osgop->sessions, osnop, osgop->count * |
133 | sizeof(struct osession_n_op)); |
134 | if (error) { |
135 | goto mbail; |
136 | } |
137 | |
138 | error = ocryptodev_msession(fcr, osnop, osgop->count); |
139 | if (error) { |
140 | goto mbail; |
141 | } |
142 | |
143 | error = copyout(osnop, osgop->sessions, osgop->count * |
144 | sizeof(struct osession_n_op)); |
145 | mbail: |
146 | kmem_free(osnop, osgop->count * sizeof(struct osession_n_op)); |
147 | break; |
148 | case OCIOCCRYPT: |
149 | mutex_enter(&crypto_mtx); |
150 | ocop = (struct ocrypt_op *)data; |
151 | cse = cryptodev_csefind(fcr, ocop->ses); |
152 | mutex_exit(&crypto_mtx); |
153 | if (cse == NULL) { |
154 | DPRINTF(("csefind failed\n" )); |
155 | return EINVAL; |
156 | } |
157 | error = ocryptodev_op(cse, ocop, curlwp); |
158 | DPRINTF(("ocryptodev_op error = %d\n" , error)); |
159 | break; |
160 | case OCIOCNCRYPTM: |
161 | omop = (struct ocrypt_mop *)data; |
162 | ocnop = kmem_alloc((omop->count * sizeof(struct ocrypt_n_op)), |
163 | KM_SLEEP); |
164 | error = copyin(omop->reqs, ocnop, |
165 | (omop->count * sizeof(struct ocrypt_n_op))); |
166 | if(!error) { |
167 | error = ocryptodev_mop(fcr, ocnop, omop->count, curlwp); |
168 | if (!error) { |
169 | error = copyout(ocnop, omop->reqs, |
170 | (omop->count * sizeof(struct ocrypt_n_op))); |
171 | } |
172 | } |
173 | kmem_free(ocnop, (omop->count * sizeof(struct ocrypt_n_op))); |
174 | break; |
175 | default: |
176 | DPRINTF(("invalid ioctl cmd 0x%lx\n" , cmd)); |
177 | return EINVAL; |
178 | } |
179 | return error; |
180 | } |
181 | |
182 | |
183 | static int |
184 | ocryptodev_op(struct csession *cse, struct ocrypt_op *ocop, struct lwp *l) |
185 | { |
186 | struct crypt_op cop; |
187 | |
188 | cop.ses = ocop->ses; |
189 | cop.op = ocop->op; |
190 | cop.flags = ocop->flags; |
191 | cop.len = ocop->len; |
192 | cop.src = ocop->src; |
193 | cop.dst = ocop->dst; |
194 | cop.mac = ocop->mac; |
195 | cop.iv = ocop->iv; |
196 | cop.dst_len = 0; |
197 | |
198 | return cryptodev_op(cse, &cop, l); |
199 | }; |
200 | |
201 | static int |
202 | ocryptodev_mop(struct fcrypt *fcr, |
203 | struct ocrypt_n_op *ocnop, |
204 | int count, struct lwp *l) |
205 | { |
206 | int res; |
207 | |
208 | struct crypt_n_op cnop; |
209 | |
210 | cnop.ses = ocnop->ses; |
211 | cnop.op = ocnop->op; |
212 | cnop.flags = ocnop->flags; |
213 | cnop.len = ocnop->len; |
214 | cnop.reqid = ocnop->reqid; |
215 | cnop.status = ocnop->status; |
216 | cnop.opaque = ocnop->opaque; |
217 | cnop.keylen = ocnop->keylen; |
218 | cnop.key = ocnop->key; |
219 | cnop.mackeylen = ocnop->mackeylen; |
220 | cnop.mackey = ocnop->mackey; |
221 | cnop.src = ocnop->src; |
222 | cnop.dst = ocnop->dst; |
223 | cnop.mac = ocnop->mac; |
224 | cnop.iv = ocnop->iv; |
225 | cnop.dst_len = 0; |
226 | res = cryptodev_mop(fcr, &cnop, count, l); |
227 | ocnop->reqid = cnop.reqid; |
228 | ocnop->status = cnop.status; |
229 | |
230 | return res; |
231 | }; |
232 | |
233 | |
234 | static int |
235 | ocryptodev_session(struct fcrypt *fcr, struct osession_op *osop) |
236 | { |
237 | struct session_op sop; |
238 | int res; |
239 | |
240 | sop.cipher = osop->cipher; |
241 | sop.mac = osop->mac; |
242 | sop.comp_alg = 0; |
243 | sop.keylen = osop->keylen; |
244 | sop.key = osop->key; |
245 | sop.mackeylen = osop->mackeylen; |
246 | sop.mackey = osop->mackey; |
247 | res = cryptodev_session(fcr, &sop); |
248 | osop->ses = sop.ses; |
249 | return res; |
250 | |
251 | } |
252 | |
253 | static int |
254 | ocryptodev_msession(struct fcrypt *fcr, struct osession_n_op *osn_ops, |
255 | int count) |
256 | { |
257 | int i; |
258 | |
259 | for (i = 0; i < count; i++, osn_ops++) { |
260 | struct osession_op os_op; |
261 | os_op.cipher = osn_ops->cipher; |
262 | os_op.mac = osn_ops->mac; |
263 | os_op.keylen = osn_ops->keylen; |
264 | os_op.key = osn_ops->key; |
265 | os_op.mackeylen = osn_ops->mackeylen; |
266 | os_op.mackey = osn_ops->mackey; |
267 | |
268 | osn_ops->status = ocryptodev_session(fcr, &os_op); |
269 | osn_ops->ses = os_op.ses; |
270 | } |
271 | |
272 | return 0; |
273 | } |
274 | |