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Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
cce9e06d HX |
2 | /* |
3 | * Cryptographic API for algorithms (i.e., low-level API). | |
4 | * | |
5 | * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> | |
cce9e06d HX |
6 | */ |
7 | ||
13c935bb | 8 | #include <crypto/algapi.h> |
6bfd4809 | 9 | #include <linux/err.h> |
cce9e06d | 10 | #include <linux/errno.h> |
3133d76f | 11 | #include <linux/fips.h> |
cce9e06d HX |
12 | #include <linux/init.h> |
13 | #include <linux/kernel.h> | |
4cc7720c | 14 | #include <linux/list.h> |
cce9e06d | 15 | #include <linux/module.h> |
7fed0bf2 | 16 | #include <linux/rtnetlink.h> |
5a0e3ad6 | 17 | #include <linux/slab.h> |
cce9e06d HX |
18 | #include <linux/string.h> |
19 | ||
20 | #include "internal.h" | |
21 | ||
4cc7720c HX |
22 | static LIST_HEAD(crypto_template_list); |
23 | ||
002c77a4 JW |
24 | static inline void crypto_check_module_sig(struct module *mod) |
25 | { | |
59afdc7b | 26 | if (fips_enabled && mod && !module_sig_ok(mod)) |
002c77a4 | 27 | panic("Module %s signature verification failed in FIPS mode\n", |
bd4a7c69 | 28 | module_name(mod)); |
002c77a4 JW |
29 | } |
30 | ||
4cc7720c | 31 | static int crypto_check_alg(struct crypto_alg *alg) |
cce9e06d | 32 | { |
002c77a4 JW |
33 | crypto_check_module_sig(alg->cra_module); |
34 | ||
177f87d0 EB |
35 | if (!alg->cra_name[0] || !alg->cra_driver_name[0]) |
36 | return -EINVAL; | |
37 | ||
cce9e06d HX |
38 | if (alg->cra_alignmask & (alg->cra_alignmask + 1)) |
39 | return -EINVAL; | |
40 | ||
a9f7f88a KC |
41 | /* General maximums for all algs. */ |
42 | if (alg->cra_alignmask > MAX_ALGAPI_ALIGNMASK) | |
cce9e06d HX |
43 | return -EINVAL; |
44 | ||
a9f7f88a KC |
45 | if (alg->cra_blocksize > MAX_ALGAPI_BLOCKSIZE) |
46 | return -EINVAL; | |
47 | ||
48 | /* Lower maximums for specific alg types. */ | |
13c935bb SM |
49 | if (!alg->cra_type && (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == |
50 | CRYPTO_ALG_TYPE_CIPHER) { | |
51 | if (alg->cra_alignmask > MAX_CIPHER_ALIGNMASK) | |
52 | return -EINVAL; | |
53 | ||
54 | if (alg->cra_blocksize > MAX_CIPHER_BLOCKSIZE) | |
55 | return -EINVAL; | |
56 | } | |
57 | ||
cce9e06d HX |
58 | if (alg->cra_priority < 0) |
59 | return -EINVAL; | |
cce9e06d | 60 | |
ce8614a3 | 61 | refcount_set(&alg->cra_refcnt, 1); |
e9b8e5be | 62 | |
177f87d0 | 63 | return 0; |
4cc7720c HX |
64 | } |
65 | ||
319382a6 HX |
66 | static void crypto_free_instance(struct crypto_instance *inst) |
67 | { | |
68 | if (!inst->alg.cra_type->free) { | |
69 | inst->tmpl->free(inst); | |
70 | return; | |
71 | } | |
72 | ||
73 | inst->alg.cra_type->free(inst); | |
74 | } | |
75 | ||
6bfd4809 HX |
76 | static void crypto_destroy_instance(struct crypto_alg *alg) |
77 | { | |
78 | struct crypto_instance *inst = (void *)alg; | |
79 | struct crypto_template *tmpl = inst->tmpl; | |
80 | ||
319382a6 | 81 | crypto_free_instance(inst); |
6bfd4809 HX |
82 | crypto_tmpl_put(tmpl); |
83 | } | |
84 | ||
2bf29016 HX |
85 | static struct list_head *crypto_more_spawns(struct crypto_alg *alg, |
86 | struct list_head *stack, | |
87 | struct list_head *top, | |
88 | struct list_head *secondary_spawns) | |
89 | { | |
90 | struct crypto_spawn *spawn, *n; | |
91 | ||
304e4818 GT |
92 | spawn = list_first_entry_or_null(stack, struct crypto_spawn, list); |
93 | if (!spawn) | |
2bf29016 HX |
94 | return NULL; |
95 | ||
304e4818 | 96 | n = list_next_entry(spawn, list); |
2bf29016 HX |
97 | |
98 | if (spawn->alg && &n->list != stack && !n->alg) | |
99 | n->alg = (n->list.next == stack) ? alg : | |
304e4818 | 100 | &list_next_entry(n, list)->inst->alg; |
2bf29016 HX |
101 | |
102 | list_move(&spawn->list, secondary_spawns); | |
103 | ||
104 | return &n->list == stack ? top : &n->inst->alg.cra_users; | |
105 | } | |
106 | ||
1f723710 HX |
107 | static void crypto_remove_instance(struct crypto_instance *inst, |
108 | struct list_head *list) | |
6bfd4809 | 109 | { |
a73e6996 | 110 | struct crypto_template *tmpl = inst->tmpl; |
6bfd4809 | 111 | |
a73e6996 HX |
112 | if (crypto_is_dead(&inst->alg)) |
113 | return; | |
6bfd4809 | 114 | |
a73e6996 | 115 | inst->alg.cra_flags |= CRYPTO_ALG_DEAD; |
38cb2419 HX |
116 | if (hlist_unhashed(&inst->list)) |
117 | return; | |
118 | ||
a73e6996 HX |
119 | if (!tmpl || !crypto_tmpl_get(tmpl)) |
120 | return; | |
121 | ||
a73e6996 HX |
122 | list_move(&inst->alg.cra_list, list); |
123 | hlist_del(&inst->list); | |
124 | inst->alg.cra_destroy = crypto_destroy_instance; | |
125 | ||
2bf29016 | 126 | BUG_ON(!list_empty(&inst->alg.cra_users)); |
a73e6996 HX |
127 | } |
128 | ||
89b596ba SK |
129 | void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list, |
130 | struct crypto_alg *nalg) | |
a73e6996 | 131 | { |
2bf29016 | 132 | u32 new_type = (nalg ?: alg)->cra_flags; |
a73e6996 HX |
133 | struct crypto_spawn *spawn, *n; |
134 | LIST_HEAD(secondary_spawns); | |
2bf29016 HX |
135 | struct list_head *spawns; |
136 | LIST_HEAD(stack); | |
137 | LIST_HEAD(top); | |
6bfd4809 | 138 | |
2bf29016 | 139 | spawns = &alg->cra_users; |
a73e6996 HX |
140 | list_for_each_entry_safe(spawn, n, spawns, list) { |
141 | if ((spawn->alg->cra_flags ^ new_type) & spawn->mask) | |
6bfd4809 HX |
142 | continue; |
143 | ||
2bf29016 | 144 | list_move(&spawn->list, &top); |
a73e6996 | 145 | } |
6bfd4809 | 146 | |
2bf29016 HX |
147 | spawns = ⊤ |
148 | do { | |
149 | while (!list_empty(spawns)) { | |
150 | struct crypto_instance *inst; | |
151 | ||
152 | spawn = list_first_entry(spawns, struct crypto_spawn, | |
153 | list); | |
154 | inst = spawn->inst; | |
155 | ||
156 | BUG_ON(&inst->alg == alg); | |
157 | ||
158 | list_move(&spawn->list, &stack); | |
159 | ||
160 | if (&inst->alg == nalg) | |
161 | break; | |
162 | ||
163 | spawn->alg = NULL; | |
164 | spawns = &inst->alg.cra_users; | |
9a006742 EB |
165 | |
166 | /* | |
167 | * We may encounter an unregistered instance here, since | |
168 | * an instance's spawns are set up prior to the instance | |
169 | * being registered. An unregistered instance will have | |
170 | * NULL ->cra_users.next, since ->cra_users isn't | |
171 | * properly initialized until registration. But an | |
172 | * unregistered instance cannot have any users, so treat | |
173 | * it the same as ->cra_users being empty. | |
174 | */ | |
175 | if (spawns->next == NULL) | |
176 | break; | |
2bf29016 HX |
177 | } |
178 | } while ((spawns = crypto_more_spawns(alg, &stack, &top, | |
179 | &secondary_spawns))); | |
180 | ||
181 | list_for_each_entry_safe(spawn, n, &secondary_spawns, list) { | |
182 | if (spawn->alg) | |
183 | list_move(&spawn->list, &spawn->alg->cra_users); | |
184 | else | |
1f723710 | 185 | crypto_remove_instance(spawn->inst, list); |
6bfd4809 HX |
186 | } |
187 | } | |
89b596ba | 188 | EXPORT_SYMBOL_GPL(crypto_remove_spawns); |
6bfd4809 | 189 | |
73d3864a | 190 | static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg) |
4cc7720c HX |
191 | { |
192 | struct crypto_alg *q; | |
73d3864a | 193 | struct crypto_larval *larval; |
6bfd4809 HX |
194 | int ret = -EAGAIN; |
195 | ||
196 | if (crypto_is_dead(alg)) | |
73d3864a | 197 | goto err; |
6bfd4809 HX |
198 | |
199 | INIT_LIST_HEAD(&alg->cra_users); | |
200 | ||
73d3864a HX |
201 | /* No cheating! */ |
202 | alg->cra_flags &= ~CRYPTO_ALG_TESTED; | |
203 | ||
6bfd4809 | 204 | ret = -EEXIST; |
4cc7720c | 205 | |
cce9e06d | 206 | list_for_each_entry(q, &crypto_alg_list, cra_list) { |
4cc7720c | 207 | if (q == alg) |
73d3864a HX |
208 | goto err; |
209 | ||
b8e15992 HX |
210 | if (crypto_is_moribund(q)) |
211 | continue; | |
212 | ||
73d3864a HX |
213 | if (crypto_is_larval(q)) { |
214 | if (!strcmp(alg->cra_driver_name, q->cra_driver_name)) | |
215 | goto err; | |
216 | continue; | |
217 | } | |
218 | ||
219 | if (!strcmp(q->cra_driver_name, alg->cra_name) || | |
220 | !strcmp(q->cra_name, alg->cra_driver_name)) | |
221 | goto err; | |
222 | } | |
223 | ||
224 | larval = crypto_larval_alloc(alg->cra_name, | |
225 | alg->cra_flags | CRYPTO_ALG_TESTED, 0); | |
226 | if (IS_ERR(larval)) | |
227 | goto out; | |
228 | ||
229 | ret = -ENOENT; | |
230 | larval->adult = crypto_mod_get(alg); | |
231 | if (!larval->adult) | |
232 | goto free_larval; | |
233 | ||
ce8614a3 | 234 | refcount_set(&larval->alg.cra_refcnt, 1); |
73d3864a HX |
235 | memcpy(larval->alg.cra_driver_name, alg->cra_driver_name, |
236 | CRYPTO_MAX_ALG_NAME); | |
237 | larval->alg.cra_priority = alg->cra_priority; | |
238 | ||
239 | list_add(&alg->cra_list, &crypto_alg_list); | |
240 | list_add(&larval->alg.cra_list, &crypto_alg_list); | |
241 | ||
1f6669b9 | 242 | crypto_stats_init(alg); |
cac5818c | 243 | |
5357c6c4 | 244 | out: |
73d3864a HX |
245 | return larval; |
246 | ||
247 | free_larval: | |
248 | kfree(larval); | |
249 | err: | |
250 | larval = ERR_PTR(ret); | |
251 | goto out; | |
252 | } | |
253 | ||
254 | void crypto_alg_tested(const char *name, int err) | |
255 | { | |
256 | struct crypto_larval *test; | |
257 | struct crypto_alg *alg; | |
258 | struct crypto_alg *q; | |
259 | LIST_HEAD(list); | |
260 | ||
261 | down_write(&crypto_alg_sem); | |
262 | list_for_each_entry(q, &crypto_alg_list, cra_list) { | |
b8e15992 | 263 | if (crypto_is_moribund(q) || !crypto_is_larval(q)) |
73d3864a HX |
264 | continue; |
265 | ||
266 | test = (struct crypto_larval *)q; | |
267 | ||
268 | if (!strcmp(q->cra_driver_name, name)) | |
269 | goto found; | |
270 | } | |
271 | ||
c7235857 | 272 | pr_err("alg: Unexpected test result for %s: %d\n", name, err); |
73d3864a HX |
273 | goto unlock; |
274 | ||
275 | found: | |
b8e15992 | 276 | q->cra_flags |= CRYPTO_ALG_DEAD; |
73d3864a HX |
277 | alg = test->adult; |
278 | if (err || list_empty(&alg->cra_list)) | |
279 | goto complete; | |
280 | ||
281 | alg->cra_flags |= CRYPTO_ALG_TESTED; | |
282 | ||
283 | list_for_each_entry(q, &crypto_alg_list, cra_list) { | |
284 | if (q == alg) | |
285 | continue; | |
6bfd4809 HX |
286 | |
287 | if (crypto_is_moribund(q)) | |
288 | continue; | |
289 | ||
290 | if (crypto_is_larval(q)) { | |
2825982d HX |
291 | struct crypto_larval *larval = (void *)q; |
292 | ||
d8058480 HX |
293 | /* |
294 | * Check to see if either our generic name or | |
295 | * specific name can satisfy the name requested | |
296 | * by the larval entry q. | |
297 | */ | |
6bfd4809 HX |
298 | if (strcmp(alg->cra_name, q->cra_name) && |
299 | strcmp(alg->cra_driver_name, q->cra_name)) | |
300 | continue; | |
301 | ||
302 | if (larval->adult) | |
303 | continue; | |
492e2b63 HX |
304 | if ((q->cra_flags ^ alg->cra_flags) & larval->mask) |
305 | continue; | |
2825982d HX |
306 | if (!crypto_mod_get(alg)) |
307 | continue; | |
6bfd4809 | 308 | |
2825982d | 309 | larval->adult = alg; |
6bfd4809 | 310 | continue; |
2825982d | 311 | } |
6bfd4809 HX |
312 | |
313 | if (strcmp(alg->cra_name, q->cra_name)) | |
314 | continue; | |
315 | ||
316 | if (strcmp(alg->cra_driver_name, q->cra_driver_name) && | |
317 | q->cra_priority > alg->cra_priority) | |
318 | continue; | |
319 | ||
2bf29016 | 320 | crypto_remove_spawns(q, &list, alg); |
cce9e06d | 321 | } |
2825982d | 322 | |
73d3864a HX |
323 | complete: |
324 | complete_all(&test->completion); | |
2825982d | 325 | |
73d3864a HX |
326 | unlock: |
327 | up_write(&crypto_alg_sem); | |
328 | ||
329 | crypto_remove_final(&list); | |
cce9e06d | 330 | } |
73d3864a | 331 | EXPORT_SYMBOL_GPL(crypto_alg_tested); |
4cc7720c | 332 | |
22e5b20b | 333 | void crypto_remove_final(struct list_head *list) |
6bfd4809 HX |
334 | { |
335 | struct crypto_alg *alg; | |
336 | struct crypto_alg *n; | |
337 | ||
338 | list_for_each_entry_safe(alg, n, list, cra_list) { | |
339 | list_del_init(&alg->cra_list); | |
340 | crypto_alg_put(alg); | |
341 | } | |
342 | } | |
22e5b20b | 343 | EXPORT_SYMBOL_GPL(crypto_remove_final); |
6bfd4809 | 344 | |
73d3864a HX |
345 | static void crypto_wait_for_test(struct crypto_larval *larval) |
346 | { | |
347 | int err; | |
348 | ||
349 | err = crypto_probing_notify(CRYPTO_MSG_ALG_REGISTER, larval->adult); | |
350 | if (err != NOTIFY_STOP) { | |
351 | if (WARN_ON(err != NOTIFY_DONE)) | |
352 | goto out; | |
353 | crypto_alg_tested(larval->alg.cra_driver_name, 0); | |
354 | } | |
355 | ||
3fc89adb | 356 | err = wait_for_completion_killable(&larval->completion); |
73d3864a | 357 | WARN_ON(err); |
dd8b083f MP |
358 | if (!err) |
359 | crypto_probing_notify(CRYPTO_MSG_ALG_LOADED, larval); | |
73d3864a HX |
360 | |
361 | out: | |
362 | crypto_larval_kill(&larval->alg); | |
363 | } | |
364 | ||
4cc7720c HX |
365 | int crypto_register_alg(struct crypto_alg *alg) |
366 | { | |
73d3864a | 367 | struct crypto_larval *larval; |
4cc7720c HX |
368 | int err; |
369 | ||
d6040764 | 370 | alg->cra_flags &= ~CRYPTO_ALG_DEAD; |
4cc7720c HX |
371 | err = crypto_check_alg(alg); |
372 | if (err) | |
373 | return err; | |
374 | ||
375 | down_write(&crypto_alg_sem); | |
73d3864a | 376 | larval = __crypto_register_alg(alg); |
4cc7720c HX |
377 | up_write(&crypto_alg_sem); |
378 | ||
73d3864a HX |
379 | if (IS_ERR(larval)) |
380 | return PTR_ERR(larval); | |
381 | ||
382 | crypto_wait_for_test(larval); | |
383 | return 0; | |
4cc7720c | 384 | } |
cce9e06d HX |
385 | EXPORT_SYMBOL_GPL(crypto_register_alg); |
386 | ||
6bfd4809 HX |
387 | static int crypto_remove_alg(struct crypto_alg *alg, struct list_head *list) |
388 | { | |
389 | if (unlikely(list_empty(&alg->cra_list))) | |
390 | return -ENOENT; | |
391 | ||
392 | alg->cra_flags |= CRYPTO_ALG_DEAD; | |
393 | ||
6bfd4809 | 394 | list_del_init(&alg->cra_list); |
2bf29016 | 395 | crypto_remove_spawns(alg, list, NULL); |
6bfd4809 HX |
396 | |
397 | return 0; | |
398 | } | |
399 | ||
cce9e06d HX |
400 | int crypto_unregister_alg(struct crypto_alg *alg) |
401 | { | |
6bfd4809 HX |
402 | int ret; |
403 | LIST_HEAD(list); | |
5357c6c4 | 404 | |
cce9e06d | 405 | down_write(&crypto_alg_sem); |
6bfd4809 | 406 | ret = crypto_remove_alg(alg, &list); |
cce9e06d HX |
407 | up_write(&crypto_alg_sem); |
408 | ||
409 | if (ret) | |
410 | return ret; | |
411 | ||
ce8614a3 | 412 | BUG_ON(refcount_read(&alg->cra_refcnt) != 1); |
cce9e06d HX |
413 | if (alg->cra_destroy) |
414 | alg->cra_destroy(alg); | |
415 | ||
6bfd4809 | 416 | crypto_remove_final(&list); |
cce9e06d HX |
417 | return 0; |
418 | } | |
419 | EXPORT_SYMBOL_GPL(crypto_unregister_alg); | |
420 | ||
4b004346 MB |
421 | int crypto_register_algs(struct crypto_alg *algs, int count) |
422 | { | |
423 | int i, ret; | |
424 | ||
425 | for (i = 0; i < count; i++) { | |
426 | ret = crypto_register_alg(&algs[i]); | |
427 | if (ret) | |
428 | goto err; | |
429 | } | |
430 | ||
431 | return 0; | |
432 | ||
433 | err: | |
434 | for (--i; i >= 0; --i) | |
435 | crypto_unregister_alg(&algs[i]); | |
436 | ||
437 | return ret; | |
438 | } | |
439 | EXPORT_SYMBOL_GPL(crypto_register_algs); | |
440 | ||
441 | int crypto_unregister_algs(struct crypto_alg *algs, int count) | |
442 | { | |
443 | int i, ret; | |
444 | ||
445 | for (i = 0; i < count; i++) { | |
446 | ret = crypto_unregister_alg(&algs[i]); | |
447 | if (ret) | |
448 | pr_err("Failed to unregister %s %s: %d\n", | |
449 | algs[i].cra_driver_name, algs[i].cra_name, ret); | |
450 | } | |
451 | ||
452 | return 0; | |
453 | } | |
454 | EXPORT_SYMBOL_GPL(crypto_unregister_algs); | |
455 | ||
4cc7720c HX |
456 | int crypto_register_template(struct crypto_template *tmpl) |
457 | { | |
458 | struct crypto_template *q; | |
459 | int err = -EEXIST; | |
460 | ||
461 | down_write(&crypto_alg_sem); | |
462 | ||
002c77a4 JW |
463 | crypto_check_module_sig(tmpl->module); |
464 | ||
4cc7720c HX |
465 | list_for_each_entry(q, &crypto_template_list, list) { |
466 | if (q == tmpl) | |
467 | goto out; | |
468 | } | |
469 | ||
470 | list_add(&tmpl->list, &crypto_template_list); | |
471 | err = 0; | |
472 | out: | |
473 | up_write(&crypto_alg_sem); | |
474 | return err; | |
475 | } | |
476 | EXPORT_SYMBOL_GPL(crypto_register_template); | |
477 | ||
9572442d XW |
478 | int crypto_register_templates(struct crypto_template *tmpls, int count) |
479 | { | |
480 | int i, err; | |
481 | ||
482 | for (i = 0; i < count; i++) { | |
483 | err = crypto_register_template(&tmpls[i]); | |
484 | if (err) | |
485 | goto out; | |
486 | } | |
487 | return 0; | |
488 | ||
489 | out: | |
490 | for (--i; i >= 0; --i) | |
491 | crypto_unregister_template(&tmpls[i]); | |
492 | return err; | |
493 | } | |
494 | EXPORT_SYMBOL_GPL(crypto_register_templates); | |
495 | ||
4cc7720c HX |
496 | void crypto_unregister_template(struct crypto_template *tmpl) |
497 | { | |
498 | struct crypto_instance *inst; | |
b67bfe0d | 499 | struct hlist_node *n; |
4cc7720c | 500 | struct hlist_head *list; |
6bfd4809 | 501 | LIST_HEAD(users); |
4cc7720c HX |
502 | |
503 | down_write(&crypto_alg_sem); | |
504 | ||
505 | BUG_ON(list_empty(&tmpl->list)); | |
506 | list_del_init(&tmpl->list); | |
507 | ||
508 | list = &tmpl->instances; | |
b67bfe0d | 509 | hlist_for_each_entry(inst, list, list) { |
6bfd4809 | 510 | int err = crypto_remove_alg(&inst->alg, &users); |
0efcb8d5 | 511 | |
6bfd4809 | 512 | BUG_ON(err); |
4cc7720c HX |
513 | } |
514 | ||
515 | up_write(&crypto_alg_sem); | |
516 | ||
b67bfe0d | 517 | hlist_for_each_entry_safe(inst, n, list, list) { |
ce8614a3 | 518 | BUG_ON(refcount_read(&inst->alg.cra_refcnt) != 1); |
319382a6 | 519 | crypto_free_instance(inst); |
4cc7720c | 520 | } |
6bfd4809 | 521 | crypto_remove_final(&users); |
4cc7720c HX |
522 | } |
523 | EXPORT_SYMBOL_GPL(crypto_unregister_template); | |
524 | ||
9572442d XW |
525 | void crypto_unregister_templates(struct crypto_template *tmpls, int count) |
526 | { | |
527 | int i; | |
528 | ||
529 | for (i = count - 1; i >= 0; --i) | |
530 | crypto_unregister_template(&tmpls[i]); | |
531 | } | |
532 | EXPORT_SYMBOL_GPL(crypto_unregister_templates); | |
533 | ||
4cc7720c HX |
534 | static struct crypto_template *__crypto_lookup_template(const char *name) |
535 | { | |
536 | struct crypto_template *q, *tmpl = NULL; | |
537 | ||
538 | down_read(&crypto_alg_sem); | |
539 | list_for_each_entry(q, &crypto_template_list, list) { | |
540 | if (strcmp(q->name, name)) | |
541 | continue; | |
542 | if (unlikely(!crypto_tmpl_get(q))) | |
543 | continue; | |
544 | ||
545 | tmpl = q; | |
546 | break; | |
547 | } | |
548 | up_read(&crypto_alg_sem); | |
549 | ||
550 | return tmpl; | |
551 | } | |
552 | ||
553 | struct crypto_template *crypto_lookup_template(const char *name) | |
554 | { | |
4943ba16 KC |
555 | return try_then_request_module(__crypto_lookup_template(name), |
556 | "crypto-%s", name); | |
4cc7720c HX |
557 | } |
558 | EXPORT_SYMBOL_GPL(crypto_lookup_template); | |
559 | ||
560 | int crypto_register_instance(struct crypto_template *tmpl, | |
561 | struct crypto_instance *inst) | |
562 | { | |
73d3864a HX |
563 | struct crypto_larval *larval; |
564 | int err; | |
4cc7720c | 565 | |
4cc7720c HX |
566 | err = crypto_check_alg(&inst->alg); |
567 | if (err) | |
9c521a20 SM |
568 | return err; |
569 | ||
4cc7720c | 570 | inst->alg.cra_module = tmpl->module; |
64a947b1 | 571 | inst->alg.cra_flags |= CRYPTO_ALG_INSTANCE; |
4cc7720c HX |
572 | |
573 | down_write(&crypto_alg_sem); | |
574 | ||
73d3864a HX |
575 | larval = __crypto_register_alg(&inst->alg); |
576 | if (IS_ERR(larval)) | |
4cc7720c HX |
577 | goto unlock; |
578 | ||
579 | hlist_add_head(&inst->list, &tmpl->instances); | |
580 | inst->tmpl = tmpl; | |
581 | ||
582 | unlock: | |
583 | up_write(&crypto_alg_sem); | |
584 | ||
73d3864a HX |
585 | err = PTR_ERR(larval); |
586 | if (IS_ERR(larval)) | |
587 | goto err; | |
588 | ||
589 | crypto_wait_for_test(larval); | |
590 | err = 0; | |
6bfd4809 | 591 | |
4cc7720c HX |
592 | err: |
593 | return err; | |
594 | } | |
595 | EXPORT_SYMBOL_GPL(crypto_register_instance); | |
ce3fd840 | 596 | |
87b16756 | 597 | int crypto_unregister_instance(struct crypto_instance *inst) |
ce3fd840 | 598 | { |
1f723710 | 599 | LIST_HEAD(list); |
ce3fd840 | 600 | |
ce3fd840 SK |
601 | down_write(&crypto_alg_sem); |
602 | ||
87b16756 | 603 | crypto_remove_spawns(&inst->alg, &list, NULL); |
1f723710 | 604 | crypto_remove_instance(inst, &list); |
ce3fd840 SK |
605 | |
606 | up_write(&crypto_alg_sem); | |
607 | ||
1f723710 | 608 | crypto_remove_final(&list); |
ce3fd840 SK |
609 | |
610 | return 0; | |
611 | } | |
612 | EXPORT_SYMBOL_GPL(crypto_unregister_instance); | |
4cc7720c | 613 | |
6bfd4809 | 614 | int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg, |
a73e6996 | 615 | struct crypto_instance *inst, u32 mask) |
6bfd4809 HX |
616 | { |
617 | int err = -EAGAIN; | |
618 | ||
6b476662 EB |
619 | if (WARN_ON_ONCE(inst == NULL)) |
620 | return -EINVAL; | |
621 | ||
6bfd4809 | 622 | spawn->inst = inst; |
a73e6996 | 623 | spawn->mask = mask; |
6bfd4809 HX |
624 | |
625 | down_write(&crypto_alg_sem); | |
626 | if (!crypto_is_moribund(alg)) { | |
627 | list_add(&spawn->list, &alg->cra_users); | |
628 | spawn->alg = alg; | |
629 | err = 0; | |
630 | } | |
631 | up_write(&crypto_alg_sem); | |
632 | ||
633 | return err; | |
634 | } | |
635 | EXPORT_SYMBOL_GPL(crypto_init_spawn); | |
636 | ||
97eedce1 HX |
637 | int crypto_init_spawn2(struct crypto_spawn *spawn, struct crypto_alg *alg, |
638 | struct crypto_instance *inst, | |
639 | const struct crypto_type *frontend) | |
640 | { | |
641 | int err = -EINVAL; | |
642 | ||
c614e109 | 643 | if ((alg->cra_flags ^ frontend->type) & frontend->maskset) |
97eedce1 HX |
644 | goto out; |
645 | ||
646 | spawn->frontend = frontend; | |
647 | err = crypto_init_spawn(spawn, alg, inst, frontend->maskset); | |
648 | ||
649 | out: | |
650 | return err; | |
651 | } | |
652 | EXPORT_SYMBOL_GPL(crypto_init_spawn2); | |
653 | ||
d6ef2f19 HX |
654 | int crypto_grab_spawn(struct crypto_spawn *spawn, const char *name, |
655 | u32 type, u32 mask) | |
656 | { | |
657 | struct crypto_alg *alg; | |
658 | int err; | |
659 | ||
660 | alg = crypto_find_alg(name, spawn->frontend, type, mask); | |
661 | if (IS_ERR(alg)) | |
662 | return PTR_ERR(alg); | |
663 | ||
664 | err = crypto_init_spawn(spawn, alg, spawn->inst, mask); | |
665 | crypto_mod_put(alg); | |
666 | return err; | |
667 | } | |
668 | EXPORT_SYMBOL_GPL(crypto_grab_spawn); | |
669 | ||
6bfd4809 HX |
670 | void crypto_drop_spawn(struct crypto_spawn *spawn) |
671 | { | |
7ede5a5b HX |
672 | if (!spawn->alg) |
673 | return; | |
674 | ||
6bfd4809 HX |
675 | down_write(&crypto_alg_sem); |
676 | list_del(&spawn->list); | |
677 | up_write(&crypto_alg_sem); | |
678 | } | |
679 | EXPORT_SYMBOL_GPL(crypto_drop_spawn); | |
680 | ||
97eedce1 | 681 | static struct crypto_alg *crypto_spawn_alg(struct crypto_spawn *spawn) |
6bfd4809 HX |
682 | { |
683 | struct crypto_alg *alg; | |
684 | struct crypto_alg *alg2; | |
6bfd4809 HX |
685 | |
686 | down_read(&crypto_alg_sem); | |
687 | alg = spawn->alg; | |
688 | alg2 = alg; | |
689 | if (alg2) | |
690 | alg2 = crypto_mod_get(alg2); | |
691 | up_read(&crypto_alg_sem); | |
692 | ||
693 | if (!alg2) { | |
694 | if (alg) | |
695 | crypto_shoot_alg(alg); | |
696 | return ERR_PTR(-EAGAIN); | |
697 | } | |
698 | ||
97eedce1 HX |
699 | return alg; |
700 | } | |
701 | ||
702 | struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type, | |
703 | u32 mask) | |
704 | { | |
705 | struct crypto_alg *alg; | |
706 | struct crypto_tfm *tfm; | |
707 | ||
708 | alg = crypto_spawn_alg(spawn); | |
709 | if (IS_ERR(alg)) | |
710 | return ERR_CAST(alg); | |
711 | ||
2e306ee0 HX |
712 | tfm = ERR_PTR(-EINVAL); |
713 | if (unlikely((alg->cra_flags ^ type) & mask)) | |
714 | goto out_put_alg; | |
715 | ||
27d2a330 | 716 | tfm = __crypto_alloc_tfm(alg, type, mask); |
6bfd4809 | 717 | if (IS_ERR(tfm)) |
2e306ee0 HX |
718 | goto out_put_alg; |
719 | ||
720 | return tfm; | |
6bfd4809 | 721 | |
2e306ee0 HX |
722 | out_put_alg: |
723 | crypto_mod_put(alg); | |
6bfd4809 HX |
724 | return tfm; |
725 | } | |
726 | EXPORT_SYMBOL_GPL(crypto_spawn_tfm); | |
727 | ||
97eedce1 HX |
728 | void *crypto_spawn_tfm2(struct crypto_spawn *spawn) |
729 | { | |
730 | struct crypto_alg *alg; | |
731 | struct crypto_tfm *tfm; | |
732 | ||
733 | alg = crypto_spawn_alg(spawn); | |
734 | if (IS_ERR(alg)) | |
735 | return ERR_CAST(alg); | |
736 | ||
737 | tfm = crypto_create_tfm(alg, spawn->frontend); | |
738 | if (IS_ERR(tfm)) | |
739 | goto out_put_alg; | |
740 | ||
741 | return tfm; | |
742 | ||
743 | out_put_alg: | |
744 | crypto_mod_put(alg); | |
745 | return tfm; | |
746 | } | |
747 | EXPORT_SYMBOL_GPL(crypto_spawn_tfm2); | |
748 | ||
2825982d HX |
749 | int crypto_register_notifier(struct notifier_block *nb) |
750 | { | |
751 | return blocking_notifier_chain_register(&crypto_chain, nb); | |
752 | } | |
753 | EXPORT_SYMBOL_GPL(crypto_register_notifier); | |
754 | ||
755 | int crypto_unregister_notifier(struct notifier_block *nb) | |
756 | { | |
757 | return blocking_notifier_chain_unregister(&crypto_chain, nb); | |
758 | } | |
759 | EXPORT_SYMBOL_GPL(crypto_unregister_notifier); | |
760 | ||
ebc610e5 | 761 | struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb) |
7fed0bf2 | 762 | { |
39e1ee01 | 763 | struct rtattr *rta = tb[0]; |
ebc610e5 HX |
764 | struct crypto_attr_type *algt; |
765 | ||
766 | if (!rta) | |
767 | return ERR_PTR(-ENOENT); | |
768 | if (RTA_PAYLOAD(rta) < sizeof(*algt)) | |
769 | return ERR_PTR(-EINVAL); | |
39e1ee01 HX |
770 | if (rta->rta_type != CRYPTOA_TYPE) |
771 | return ERR_PTR(-EINVAL); | |
ebc610e5 HX |
772 | |
773 | algt = RTA_DATA(rta); | |
774 | ||
775 | return algt; | |
776 | } | |
777 | EXPORT_SYMBOL_GPL(crypto_get_attr_type); | |
778 | ||
779 | int crypto_check_attr_type(struct rtattr **tb, u32 type) | |
780 | { | |
781 | struct crypto_attr_type *algt; | |
782 | ||
783 | algt = crypto_get_attr_type(tb); | |
784 | if (IS_ERR(algt)) | |
785 | return PTR_ERR(algt); | |
786 | ||
787 | if ((algt->type ^ type) & algt->mask) | |
788 | return -EINVAL; | |
789 | ||
790 | return 0; | |
791 | } | |
792 | EXPORT_SYMBOL_GPL(crypto_check_attr_type); | |
793 | ||
68b6c7d6 | 794 | const char *crypto_attr_alg_name(struct rtattr *rta) |
ebc610e5 | 795 | { |
7fed0bf2 HX |
796 | struct crypto_attr_alg *alga; |
797 | ||
ebc610e5 HX |
798 | if (!rta) |
799 | return ERR_PTR(-ENOENT); | |
800 | if (RTA_PAYLOAD(rta) < sizeof(*alga)) | |
7fed0bf2 | 801 | return ERR_PTR(-EINVAL); |
39e1ee01 HX |
802 | if (rta->rta_type != CRYPTOA_ALG) |
803 | return ERR_PTR(-EINVAL); | |
7fed0bf2 HX |
804 | |
805 | alga = RTA_DATA(rta); | |
806 | alga->name[CRYPTO_MAX_ALG_NAME - 1] = 0; | |
807 | ||
68b6c7d6 HX |
808 | return alga->name; |
809 | } | |
810 | EXPORT_SYMBOL_GPL(crypto_attr_alg_name); | |
811 | ||
d06854f0 HX |
812 | struct crypto_alg *crypto_attr_alg2(struct rtattr *rta, |
813 | const struct crypto_type *frontend, | |
814 | u32 type, u32 mask) | |
68b6c7d6 HX |
815 | { |
816 | const char *name; | |
68b6c7d6 HX |
817 | |
818 | name = crypto_attr_alg_name(rta); | |
68b6c7d6 | 819 | if (IS_ERR(name)) |
3e8afe35 | 820 | return ERR_CAST(name); |
68b6c7d6 | 821 | |
d06854f0 | 822 | return crypto_find_alg(name, frontend, type, mask); |
7fed0bf2 | 823 | } |
d06854f0 | 824 | EXPORT_SYMBOL_GPL(crypto_attr_alg2); |
3c09f17c HX |
825 | |
826 | int crypto_attr_u32(struct rtattr *rta, u32 *num) | |
827 | { | |
828 | struct crypto_attr_u32 *nu32; | |
829 | ||
830 | if (!rta) | |
831 | return -ENOENT; | |
832 | if (RTA_PAYLOAD(rta) < sizeof(*nu32)) | |
833 | return -EINVAL; | |
834 | if (rta->rta_type != CRYPTOA_U32) | |
835 | return -EINVAL; | |
836 | ||
837 | nu32 = RTA_DATA(rta); | |
838 | *num = nu32->num; | |
839 | ||
840 | return 0; | |
841 | } | |
842 | EXPORT_SYMBOL_GPL(crypto_attr_u32); | |
7fed0bf2 | 843 | |
32f27c74 HX |
844 | int crypto_inst_setname(struct crypto_instance *inst, const char *name, |
845 | struct crypto_alg *alg) | |
846 | { | |
847 | if (snprintf(inst->alg.cra_name, CRYPTO_MAX_ALG_NAME, "%s(%s)", name, | |
848 | alg->cra_name) >= CRYPTO_MAX_ALG_NAME) | |
849 | return -ENAMETOOLONG; | |
850 | ||
851 | if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s(%s)", | |
852 | name, alg->cra_driver_name) >= CRYPTO_MAX_ALG_NAME) | |
853 | return -ENAMETOOLONG; | |
854 | ||
855 | return 0; | |
856 | } | |
857 | EXPORT_SYMBOL_GPL(crypto_inst_setname); | |
858 | ||
14aa1a83 EB |
859 | void *crypto_alloc_instance(const char *name, struct crypto_alg *alg, |
860 | unsigned int head) | |
7fed0bf2 HX |
861 | { |
862 | struct crypto_instance *inst; | |
70ec7bb9 | 863 | char *p; |
7fed0bf2 HX |
864 | int err; |
865 | ||
70ec7bb9 HX |
866 | p = kzalloc(head + sizeof(*inst) + sizeof(struct crypto_spawn), |
867 | GFP_KERNEL); | |
868 | if (!p) | |
7fed0bf2 HX |
869 | return ERR_PTR(-ENOMEM); |
870 | ||
70ec7bb9 HX |
871 | inst = (void *)(p + head); |
872 | ||
32f27c74 HX |
873 | err = crypto_inst_setname(inst, name, alg); |
874 | if (err) | |
7fed0bf2 HX |
875 | goto err_free_inst; |
876 | ||
70ec7bb9 HX |
877 | return p; |
878 | ||
879 | err_free_inst: | |
880 | kfree(p); | |
881 | return ERR_PTR(err); | |
882 | } | |
7fed0bf2 HX |
883 | EXPORT_SYMBOL_GPL(crypto_alloc_instance); |
884 | ||
b5b7f088 HX |
885 | void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen) |
886 | { | |
887 | INIT_LIST_HEAD(&queue->list); | |
888 | queue->backlog = &queue->list; | |
889 | queue->qlen = 0; | |
890 | queue->max_qlen = max_qlen; | |
891 | } | |
892 | EXPORT_SYMBOL_GPL(crypto_init_queue); | |
893 | ||
894 | int crypto_enqueue_request(struct crypto_queue *queue, | |
895 | struct crypto_async_request *request) | |
896 | { | |
897 | int err = -EINPROGRESS; | |
898 | ||
899 | if (unlikely(queue->qlen >= queue->max_qlen)) { | |
6b80ea38 GBY |
900 | if (!(request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { |
901 | err = -ENOSPC; | |
b5b7f088 | 902 | goto out; |
6b80ea38 GBY |
903 | } |
904 | err = -EBUSY; | |
b5b7f088 HX |
905 | if (queue->backlog == &queue->list) |
906 | queue->backlog = &request->list; | |
907 | } | |
908 | ||
909 | queue->qlen++; | |
910 | list_add_tail(&request->list, &queue->list); | |
911 | ||
912 | out: | |
913 | return err; | |
914 | } | |
915 | EXPORT_SYMBOL_GPL(crypto_enqueue_request); | |
916 | ||
31d228cc | 917 | struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue) |
b5b7f088 HX |
918 | { |
919 | struct list_head *request; | |
920 | ||
921 | if (unlikely(!queue->qlen)) | |
922 | return NULL; | |
923 | ||
924 | queue->qlen--; | |
925 | ||
926 | if (queue->backlog != &queue->list) | |
927 | queue->backlog = queue->backlog->next; | |
928 | ||
929 | request = queue->list.next; | |
930 | list_del(request); | |
931 | ||
31d228cc | 932 | return list_entry(request, struct crypto_async_request, list); |
b5b7f088 HX |
933 | } |
934 | EXPORT_SYMBOL_GPL(crypto_dequeue_request); | |
935 | ||
7613636d HX |
936 | static inline void crypto_inc_byte(u8 *a, unsigned int size) |
937 | { | |
938 | u8 *b = (a + size); | |
939 | u8 c; | |
940 | ||
941 | for (; size; size--) { | |
942 | c = *--b + 1; | |
943 | *b = c; | |
944 | if (c) | |
945 | break; | |
946 | } | |
947 | } | |
948 | ||
949 | void crypto_inc(u8 *a, unsigned int size) | |
950 | { | |
951 | __be32 *b = (__be32 *)(a + size); | |
952 | u32 c; | |
953 | ||
db91af0f | 954 | if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) || |
27c539ae | 955 | IS_ALIGNED((unsigned long)b, __alignof__(*b))) |
db91af0f AB |
956 | for (; size >= 4; size -= 4) { |
957 | c = be32_to_cpu(*--b) + 1; | |
958 | *b = cpu_to_be32(c); | |
27c539ae | 959 | if (likely(c)) |
db91af0f AB |
960 | return; |
961 | } | |
7613636d HX |
962 | |
963 | crypto_inc_byte(a, size); | |
964 | } | |
965 | EXPORT_SYMBOL_GPL(crypto_inc); | |
966 | ||
a7c391f0 | 967 | void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int len) |
7613636d | 968 | { |
db91af0f AB |
969 | int relalign = 0; |
970 | ||
971 | if (!IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) { | |
972 | int size = sizeof(unsigned long); | |
a7c391f0 AB |
973 | int d = (((unsigned long)dst ^ (unsigned long)src1) | |
974 | ((unsigned long)dst ^ (unsigned long)src2)) & | |
975 | (size - 1); | |
db91af0f AB |
976 | |
977 | relalign = d ? 1 << __ffs(d) : size; | |
978 | ||
979 | /* | |
980 | * If we care about alignment, process as many bytes as | |
981 | * needed to advance dst and src to values whose alignments | |
982 | * equal their relative alignment. This will allow us to | |
983 | * process the remainder of the input using optimal strides. | |
984 | */ | |
985 | while (((unsigned long)dst & (relalign - 1)) && len > 0) { | |
a7c391f0 | 986 | *dst++ = *src1++ ^ *src2++; |
db91af0f AB |
987 | len--; |
988 | } | |
989 | } | |
7613636d | 990 | |
db91af0f | 991 | while (IS_ENABLED(CONFIG_64BIT) && len >= 8 && !(relalign & 7)) { |
a7c391f0 | 992 | *(u64 *)dst = *(u64 *)src1 ^ *(u64 *)src2; |
db91af0f | 993 | dst += 8; |
a7c391f0 AB |
994 | src1 += 8; |
995 | src2 += 8; | |
db91af0f AB |
996 | len -= 8; |
997 | } | |
7613636d | 998 | |
db91af0f | 999 | while (len >= 4 && !(relalign & 3)) { |
a7c391f0 | 1000 | *(u32 *)dst = *(u32 *)src1 ^ *(u32 *)src2; |
db91af0f | 1001 | dst += 4; |
a7c391f0 AB |
1002 | src1 += 4; |
1003 | src2 += 4; | |
db91af0f AB |
1004 | len -= 4; |
1005 | } | |
1006 | ||
1007 | while (len >= 2 && !(relalign & 1)) { | |
a7c391f0 | 1008 | *(u16 *)dst = *(u16 *)src1 ^ *(u16 *)src2; |
db91af0f | 1009 | dst += 2; |
a7c391f0 AB |
1010 | src1 += 2; |
1011 | src2 += 2; | |
db91af0f AB |
1012 | len -= 2; |
1013 | } | |
7613636d | 1014 | |
db91af0f | 1015 | while (len--) |
a7c391f0 | 1016 | *dst++ = *src1++ ^ *src2++; |
7613636d | 1017 | } |
db91af0f | 1018 | EXPORT_SYMBOL_GPL(__crypto_xor); |
7613636d | 1019 | |
38d21433 HX |
1020 | unsigned int crypto_alg_extsize(struct crypto_alg *alg) |
1021 | { | |
c2110f28 HX |
1022 | return alg->cra_ctxsize + |
1023 | (alg->cra_alignmask & ~(crypto_tfm_ctx_alignment() - 1)); | |
38d21433 HX |
1024 | } |
1025 | EXPORT_SYMBOL_GPL(crypto_alg_extsize); | |
1026 | ||
f2aefdab HX |
1027 | int crypto_type_has_alg(const char *name, const struct crypto_type *frontend, |
1028 | u32 type, u32 mask) | |
1029 | { | |
1030 | int ret = 0; | |
1031 | struct crypto_alg *alg = crypto_find_alg(name, frontend, type, mask); | |
1032 | ||
1033 | if (!IS_ERR(alg)) { | |
1034 | crypto_mod_put(alg); | |
1035 | ret = 1; | |
1036 | } | |
1037 | ||
1038 | return ret; | |
1039 | } | |
1040 | EXPORT_SYMBOL_GPL(crypto_type_has_alg); | |
1041 | ||
f7d76e05 | 1042 | #ifdef CONFIG_CRYPTO_STATS |
1f6669b9 CL |
1043 | void crypto_stats_init(struct crypto_alg *alg) |
1044 | { | |
1045 | memset(&alg->stats, 0, sizeof(alg->stats)); | |
1046 | } | |
1047 | EXPORT_SYMBOL_GPL(crypto_stats_init); | |
1048 | ||
f7d76e05 CL |
1049 | void crypto_stats_get(struct crypto_alg *alg) |
1050 | { | |
1051 | crypto_alg_get(alg); | |
1052 | } | |
1053 | EXPORT_SYMBOL_GPL(crypto_stats_get); | |
1054 | ||
1055 | void crypto_stats_ablkcipher_encrypt(unsigned int nbytes, int ret, | |
1056 | struct crypto_alg *alg) | |
1057 | { | |
1058 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1059 | atomic64_inc(&alg->stats.cipher.err_cnt); |
f7d76e05 | 1060 | } else { |
17c18f9e CL |
1061 | atomic64_inc(&alg->stats.cipher.encrypt_cnt); |
1062 | atomic64_add(nbytes, &alg->stats.cipher.encrypt_tlen); | |
f7d76e05 CL |
1063 | } |
1064 | crypto_alg_put(alg); | |
1065 | } | |
1066 | EXPORT_SYMBOL_GPL(crypto_stats_ablkcipher_encrypt); | |
1067 | ||
1068 | void crypto_stats_ablkcipher_decrypt(unsigned int nbytes, int ret, | |
1069 | struct crypto_alg *alg) | |
1070 | { | |
1071 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1072 | atomic64_inc(&alg->stats.cipher.err_cnt); |
f7d76e05 | 1073 | } else { |
17c18f9e CL |
1074 | atomic64_inc(&alg->stats.cipher.decrypt_cnt); |
1075 | atomic64_add(nbytes, &alg->stats.cipher.decrypt_tlen); | |
f7d76e05 CL |
1076 | } |
1077 | crypto_alg_put(alg); | |
1078 | } | |
1079 | EXPORT_SYMBOL_GPL(crypto_stats_ablkcipher_decrypt); | |
1080 | ||
1081 | void crypto_stats_aead_encrypt(unsigned int cryptlen, struct crypto_alg *alg, | |
1082 | int ret) | |
1083 | { | |
1084 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1085 | atomic64_inc(&alg->stats.aead.err_cnt); |
f7d76e05 | 1086 | } else { |
17c18f9e CL |
1087 | atomic64_inc(&alg->stats.aead.encrypt_cnt); |
1088 | atomic64_add(cryptlen, &alg->stats.aead.encrypt_tlen); | |
f7d76e05 CL |
1089 | } |
1090 | crypto_alg_put(alg); | |
1091 | } | |
1092 | EXPORT_SYMBOL_GPL(crypto_stats_aead_encrypt); | |
1093 | ||
1094 | void crypto_stats_aead_decrypt(unsigned int cryptlen, struct crypto_alg *alg, | |
1095 | int ret) | |
1096 | { | |
1097 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1098 | atomic64_inc(&alg->stats.aead.err_cnt); |
f7d76e05 | 1099 | } else { |
17c18f9e CL |
1100 | atomic64_inc(&alg->stats.aead.decrypt_cnt); |
1101 | atomic64_add(cryptlen, &alg->stats.aead.decrypt_tlen); | |
f7d76e05 CL |
1102 | } |
1103 | crypto_alg_put(alg); | |
1104 | } | |
1105 | EXPORT_SYMBOL_GPL(crypto_stats_aead_decrypt); | |
1106 | ||
1107 | void crypto_stats_akcipher_encrypt(unsigned int src_len, int ret, | |
1108 | struct crypto_alg *alg) | |
1109 | { | |
1110 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1111 | atomic64_inc(&alg->stats.akcipher.err_cnt); |
f7d76e05 | 1112 | } else { |
17c18f9e CL |
1113 | atomic64_inc(&alg->stats.akcipher.encrypt_cnt); |
1114 | atomic64_add(src_len, &alg->stats.akcipher.encrypt_tlen); | |
f7d76e05 CL |
1115 | } |
1116 | crypto_alg_put(alg); | |
1117 | } | |
1118 | EXPORT_SYMBOL_GPL(crypto_stats_akcipher_encrypt); | |
1119 | ||
1120 | void crypto_stats_akcipher_decrypt(unsigned int src_len, int ret, | |
1121 | struct crypto_alg *alg) | |
1122 | { | |
1123 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1124 | atomic64_inc(&alg->stats.akcipher.err_cnt); |
f7d76e05 | 1125 | } else { |
17c18f9e CL |
1126 | atomic64_inc(&alg->stats.akcipher.decrypt_cnt); |
1127 | atomic64_add(src_len, &alg->stats.akcipher.decrypt_tlen); | |
f7d76e05 CL |
1128 | } |
1129 | crypto_alg_put(alg); | |
1130 | } | |
1131 | EXPORT_SYMBOL_GPL(crypto_stats_akcipher_decrypt); | |
1132 | ||
1133 | void crypto_stats_akcipher_sign(int ret, struct crypto_alg *alg) | |
1134 | { | |
1135 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) | |
44f13133 | 1136 | atomic64_inc(&alg->stats.akcipher.err_cnt); |
f7d76e05 | 1137 | else |
17c18f9e | 1138 | atomic64_inc(&alg->stats.akcipher.sign_cnt); |
f7d76e05 CL |
1139 | crypto_alg_put(alg); |
1140 | } | |
1141 | EXPORT_SYMBOL_GPL(crypto_stats_akcipher_sign); | |
1142 | ||
1143 | void crypto_stats_akcipher_verify(int ret, struct crypto_alg *alg) | |
1144 | { | |
1145 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) | |
44f13133 | 1146 | atomic64_inc(&alg->stats.akcipher.err_cnt); |
f7d76e05 | 1147 | else |
17c18f9e | 1148 | atomic64_inc(&alg->stats.akcipher.verify_cnt); |
f7d76e05 CL |
1149 | crypto_alg_put(alg); |
1150 | } | |
1151 | EXPORT_SYMBOL_GPL(crypto_stats_akcipher_verify); | |
1152 | ||
1153 | void crypto_stats_compress(unsigned int slen, int ret, struct crypto_alg *alg) | |
1154 | { | |
1155 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1156 | atomic64_inc(&alg->stats.compress.err_cnt); |
f7d76e05 | 1157 | } else { |
17c18f9e CL |
1158 | atomic64_inc(&alg->stats.compress.compress_cnt); |
1159 | atomic64_add(slen, &alg->stats.compress.compress_tlen); | |
f7d76e05 CL |
1160 | } |
1161 | crypto_alg_put(alg); | |
1162 | } | |
1163 | EXPORT_SYMBOL_GPL(crypto_stats_compress); | |
1164 | ||
1165 | void crypto_stats_decompress(unsigned int slen, int ret, struct crypto_alg *alg) | |
1166 | { | |
1167 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1168 | atomic64_inc(&alg->stats.compress.err_cnt); |
f7d76e05 | 1169 | } else { |
17c18f9e CL |
1170 | atomic64_inc(&alg->stats.compress.decompress_cnt); |
1171 | atomic64_add(slen, &alg->stats.compress.decompress_tlen); | |
f7d76e05 CL |
1172 | } |
1173 | crypto_alg_put(alg); | |
1174 | } | |
1175 | EXPORT_SYMBOL_GPL(crypto_stats_decompress); | |
1176 | ||
1177 | void crypto_stats_ahash_update(unsigned int nbytes, int ret, | |
1178 | struct crypto_alg *alg) | |
1179 | { | |
1180 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) | |
44f13133 | 1181 | atomic64_inc(&alg->stats.hash.err_cnt); |
f7d76e05 | 1182 | else |
17c18f9e | 1183 | atomic64_add(nbytes, &alg->stats.hash.hash_tlen); |
f7d76e05 CL |
1184 | crypto_alg_put(alg); |
1185 | } | |
1186 | EXPORT_SYMBOL_GPL(crypto_stats_ahash_update); | |
1187 | ||
1188 | void crypto_stats_ahash_final(unsigned int nbytes, int ret, | |
1189 | struct crypto_alg *alg) | |
1190 | { | |
1191 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1192 | atomic64_inc(&alg->stats.hash.err_cnt); |
f7d76e05 | 1193 | } else { |
17c18f9e CL |
1194 | atomic64_inc(&alg->stats.hash.hash_cnt); |
1195 | atomic64_add(nbytes, &alg->stats.hash.hash_tlen); | |
f7d76e05 CL |
1196 | } |
1197 | crypto_alg_put(alg); | |
1198 | } | |
1199 | EXPORT_SYMBOL_GPL(crypto_stats_ahash_final); | |
1200 | ||
1201 | void crypto_stats_kpp_set_secret(struct crypto_alg *alg, int ret) | |
1202 | { | |
1203 | if (ret) | |
44f13133 | 1204 | atomic64_inc(&alg->stats.kpp.err_cnt); |
f7d76e05 | 1205 | else |
17c18f9e | 1206 | atomic64_inc(&alg->stats.kpp.setsecret_cnt); |
f7d76e05 CL |
1207 | crypto_alg_put(alg); |
1208 | } | |
1209 | EXPORT_SYMBOL_GPL(crypto_stats_kpp_set_secret); | |
1210 | ||
1211 | void crypto_stats_kpp_generate_public_key(struct crypto_alg *alg, int ret) | |
1212 | { | |
1213 | if (ret) | |
44f13133 | 1214 | atomic64_inc(&alg->stats.kpp.err_cnt); |
f7d76e05 | 1215 | else |
17c18f9e | 1216 | atomic64_inc(&alg->stats.kpp.generate_public_key_cnt); |
f7d76e05 CL |
1217 | crypto_alg_put(alg); |
1218 | } | |
1219 | EXPORT_SYMBOL_GPL(crypto_stats_kpp_generate_public_key); | |
1220 | ||
1221 | void crypto_stats_kpp_compute_shared_secret(struct crypto_alg *alg, int ret) | |
1222 | { | |
1223 | if (ret) | |
44f13133 | 1224 | atomic64_inc(&alg->stats.kpp.err_cnt); |
f7d76e05 | 1225 | else |
17c18f9e | 1226 | atomic64_inc(&alg->stats.kpp.compute_shared_secret_cnt); |
f7d76e05 CL |
1227 | crypto_alg_put(alg); |
1228 | } | |
1229 | EXPORT_SYMBOL_GPL(crypto_stats_kpp_compute_shared_secret); | |
1230 | ||
1231 | void crypto_stats_rng_seed(struct crypto_alg *alg, int ret) | |
1232 | { | |
1233 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) | |
44f13133 | 1234 | atomic64_inc(&alg->stats.rng.err_cnt); |
f7d76e05 | 1235 | else |
17c18f9e | 1236 | atomic64_inc(&alg->stats.rng.seed_cnt); |
f7d76e05 CL |
1237 | crypto_alg_put(alg); |
1238 | } | |
1239 | EXPORT_SYMBOL_GPL(crypto_stats_rng_seed); | |
1240 | ||
1241 | void crypto_stats_rng_generate(struct crypto_alg *alg, unsigned int dlen, | |
1242 | int ret) | |
1243 | { | |
1244 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1245 | atomic64_inc(&alg->stats.rng.err_cnt); |
f7d76e05 | 1246 | } else { |
17c18f9e CL |
1247 | atomic64_inc(&alg->stats.rng.generate_cnt); |
1248 | atomic64_add(dlen, &alg->stats.rng.generate_tlen); | |
f7d76e05 CL |
1249 | } |
1250 | crypto_alg_put(alg); | |
1251 | } | |
1252 | EXPORT_SYMBOL_GPL(crypto_stats_rng_generate); | |
1253 | ||
1254 | void crypto_stats_skcipher_encrypt(unsigned int cryptlen, int ret, | |
1255 | struct crypto_alg *alg) | |
1256 | { | |
1257 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1258 | atomic64_inc(&alg->stats.cipher.err_cnt); |
f7d76e05 | 1259 | } else { |
17c18f9e CL |
1260 | atomic64_inc(&alg->stats.cipher.encrypt_cnt); |
1261 | atomic64_add(cryptlen, &alg->stats.cipher.encrypt_tlen); | |
f7d76e05 CL |
1262 | } |
1263 | crypto_alg_put(alg); | |
1264 | } | |
1265 | EXPORT_SYMBOL_GPL(crypto_stats_skcipher_encrypt); | |
1266 | ||
1267 | void crypto_stats_skcipher_decrypt(unsigned int cryptlen, int ret, | |
1268 | struct crypto_alg *alg) | |
1269 | { | |
1270 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1271 | atomic64_inc(&alg->stats.cipher.err_cnt); |
f7d76e05 | 1272 | } else { |
17c18f9e CL |
1273 | atomic64_inc(&alg->stats.cipher.decrypt_cnt); |
1274 | atomic64_add(cryptlen, &alg->stats.cipher.decrypt_tlen); | |
f7d76e05 CL |
1275 | } |
1276 | crypto_alg_put(alg); | |
1277 | } | |
1278 | EXPORT_SYMBOL_GPL(crypto_stats_skcipher_decrypt); | |
1279 | #endif | |
1280 | ||
cce9e06d HX |
1281 | static int __init crypto_algapi_init(void) |
1282 | { | |
1283 | crypto_init_proc(); | |
1284 | return 0; | |
1285 | } | |
1286 | ||
1287 | static void __exit crypto_algapi_exit(void) | |
1288 | { | |
1289 | crypto_exit_proc(); | |
1290 | } | |
1291 | ||
1292 | module_init(crypto_algapi_init); | |
1293 | module_exit(crypto_algapi_exit); | |
1294 | ||
1295 | MODULE_LICENSE("GPL"); | |
1296 | MODULE_DESCRIPTION("Cryptographic algorithms API"); |