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Commit | Line | Data |
---|---|---|
cce9e06d HX |
1 | /* |
2 | * Cryptographic API for algorithms (i.e., low-level API). | |
3 | * | |
4 | * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the Free | |
8 | * Software Foundation; either version 2 of the License, or (at your option) | |
9 | * any later version. | |
10 | * | |
11 | */ | |
12 | ||
13c935bb | 13 | #include <crypto/algapi.h> |
6bfd4809 | 14 | #include <linux/err.h> |
cce9e06d | 15 | #include <linux/errno.h> |
3133d76f | 16 | #include <linux/fips.h> |
cce9e06d HX |
17 | #include <linux/init.h> |
18 | #include <linux/kernel.h> | |
4cc7720c | 19 | #include <linux/list.h> |
cce9e06d | 20 | #include <linux/module.h> |
7fed0bf2 | 21 | #include <linux/rtnetlink.h> |
5a0e3ad6 | 22 | #include <linux/slab.h> |
cce9e06d HX |
23 | #include <linux/string.h> |
24 | ||
25 | #include "internal.h" | |
26 | ||
4cc7720c HX |
27 | static LIST_HEAD(crypto_template_list); |
28 | ||
cce9e06d HX |
29 | static inline int crypto_set_driver_name(struct crypto_alg *alg) |
30 | { | |
31 | static const char suffix[] = "-generic"; | |
32 | char *driver_name = alg->cra_driver_name; | |
33 | int len; | |
34 | ||
35 | if (*driver_name) | |
36 | return 0; | |
37 | ||
38 | len = strlcpy(driver_name, alg->cra_name, CRYPTO_MAX_ALG_NAME); | |
39 | if (len + sizeof(suffix) > CRYPTO_MAX_ALG_NAME) | |
40 | return -ENAMETOOLONG; | |
41 | ||
42 | memcpy(driver_name + len, suffix, sizeof(suffix)); | |
43 | return 0; | |
44 | } | |
45 | ||
002c77a4 JW |
46 | static inline void crypto_check_module_sig(struct module *mod) |
47 | { | |
59afdc7b | 48 | if (fips_enabled && mod && !module_sig_ok(mod)) |
002c77a4 | 49 | panic("Module %s signature verification failed in FIPS mode\n", |
bd4a7c69 | 50 | module_name(mod)); |
002c77a4 JW |
51 | } |
52 | ||
4cc7720c | 53 | static int crypto_check_alg(struct crypto_alg *alg) |
cce9e06d | 54 | { |
002c77a4 JW |
55 | crypto_check_module_sig(alg->cra_module); |
56 | ||
cce9e06d HX |
57 | if (alg->cra_alignmask & (alg->cra_alignmask + 1)) |
58 | return -EINVAL; | |
59 | ||
a9f7f88a KC |
60 | /* General maximums for all algs. */ |
61 | if (alg->cra_alignmask > MAX_ALGAPI_ALIGNMASK) | |
cce9e06d HX |
62 | return -EINVAL; |
63 | ||
a9f7f88a KC |
64 | if (alg->cra_blocksize > MAX_ALGAPI_BLOCKSIZE) |
65 | return -EINVAL; | |
66 | ||
67 | /* Lower maximums for specific alg types. */ | |
13c935bb SM |
68 | if (!alg->cra_type && (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == |
69 | CRYPTO_ALG_TYPE_CIPHER) { | |
70 | if (alg->cra_alignmask > MAX_CIPHER_ALIGNMASK) | |
71 | return -EINVAL; | |
72 | ||
73 | if (alg->cra_blocksize > MAX_CIPHER_BLOCKSIZE) | |
74 | return -EINVAL; | |
75 | } | |
76 | ||
cce9e06d HX |
77 | if (alg->cra_priority < 0) |
78 | return -EINVAL; | |
cce9e06d | 79 | |
ce8614a3 | 80 | refcount_set(&alg->cra_refcnt, 1); |
e9b8e5be | 81 | |
4cc7720c HX |
82 | return crypto_set_driver_name(alg); |
83 | } | |
84 | ||
319382a6 HX |
85 | static void crypto_free_instance(struct crypto_instance *inst) |
86 | { | |
87 | if (!inst->alg.cra_type->free) { | |
88 | inst->tmpl->free(inst); | |
89 | return; | |
90 | } | |
91 | ||
92 | inst->alg.cra_type->free(inst); | |
93 | } | |
94 | ||
6bfd4809 HX |
95 | static void crypto_destroy_instance(struct crypto_alg *alg) |
96 | { | |
97 | struct crypto_instance *inst = (void *)alg; | |
98 | struct crypto_template *tmpl = inst->tmpl; | |
99 | ||
319382a6 | 100 | crypto_free_instance(inst); |
6bfd4809 HX |
101 | crypto_tmpl_put(tmpl); |
102 | } | |
103 | ||
2bf29016 HX |
104 | static struct list_head *crypto_more_spawns(struct crypto_alg *alg, |
105 | struct list_head *stack, | |
106 | struct list_head *top, | |
107 | struct list_head *secondary_spawns) | |
108 | { | |
109 | struct crypto_spawn *spawn, *n; | |
110 | ||
304e4818 GT |
111 | spawn = list_first_entry_or_null(stack, struct crypto_spawn, list); |
112 | if (!spawn) | |
2bf29016 HX |
113 | return NULL; |
114 | ||
304e4818 | 115 | n = list_next_entry(spawn, list); |
2bf29016 HX |
116 | |
117 | if (spawn->alg && &n->list != stack && !n->alg) | |
118 | n->alg = (n->list.next == stack) ? alg : | |
304e4818 | 119 | &list_next_entry(n, list)->inst->alg; |
2bf29016 HX |
120 | |
121 | list_move(&spawn->list, secondary_spawns); | |
122 | ||
123 | return &n->list == stack ? top : &n->inst->alg.cra_users; | |
124 | } | |
125 | ||
1f723710 HX |
126 | static void crypto_remove_instance(struct crypto_instance *inst, |
127 | struct list_head *list) | |
6bfd4809 | 128 | { |
a73e6996 | 129 | struct crypto_template *tmpl = inst->tmpl; |
6bfd4809 | 130 | |
a73e6996 HX |
131 | if (crypto_is_dead(&inst->alg)) |
132 | return; | |
6bfd4809 | 133 | |
a73e6996 | 134 | inst->alg.cra_flags |= CRYPTO_ALG_DEAD; |
38cb2419 HX |
135 | if (hlist_unhashed(&inst->list)) |
136 | return; | |
137 | ||
a73e6996 HX |
138 | if (!tmpl || !crypto_tmpl_get(tmpl)) |
139 | return; | |
140 | ||
a73e6996 HX |
141 | list_move(&inst->alg.cra_list, list); |
142 | hlist_del(&inst->list); | |
143 | inst->alg.cra_destroy = crypto_destroy_instance; | |
144 | ||
2bf29016 | 145 | BUG_ON(!list_empty(&inst->alg.cra_users)); |
a73e6996 HX |
146 | } |
147 | ||
89b596ba SK |
148 | void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list, |
149 | struct crypto_alg *nalg) | |
a73e6996 | 150 | { |
2bf29016 | 151 | u32 new_type = (nalg ?: alg)->cra_flags; |
a73e6996 HX |
152 | struct crypto_spawn *spawn, *n; |
153 | LIST_HEAD(secondary_spawns); | |
2bf29016 HX |
154 | struct list_head *spawns; |
155 | LIST_HEAD(stack); | |
156 | LIST_HEAD(top); | |
6bfd4809 | 157 | |
2bf29016 | 158 | spawns = &alg->cra_users; |
a73e6996 HX |
159 | list_for_each_entry_safe(spawn, n, spawns, list) { |
160 | if ((spawn->alg->cra_flags ^ new_type) & spawn->mask) | |
6bfd4809 HX |
161 | continue; |
162 | ||
2bf29016 | 163 | list_move(&spawn->list, &top); |
a73e6996 | 164 | } |
6bfd4809 | 165 | |
2bf29016 HX |
166 | spawns = ⊤ |
167 | do { | |
168 | while (!list_empty(spawns)) { | |
169 | struct crypto_instance *inst; | |
170 | ||
171 | spawn = list_first_entry(spawns, struct crypto_spawn, | |
172 | list); | |
173 | inst = spawn->inst; | |
174 | ||
175 | BUG_ON(&inst->alg == alg); | |
176 | ||
177 | list_move(&spawn->list, &stack); | |
178 | ||
179 | if (&inst->alg == nalg) | |
180 | break; | |
181 | ||
182 | spawn->alg = NULL; | |
183 | spawns = &inst->alg.cra_users; | |
9a006742 EB |
184 | |
185 | /* | |
186 | * We may encounter an unregistered instance here, since | |
187 | * an instance's spawns are set up prior to the instance | |
188 | * being registered. An unregistered instance will have | |
189 | * NULL ->cra_users.next, since ->cra_users isn't | |
190 | * properly initialized until registration. But an | |
191 | * unregistered instance cannot have any users, so treat | |
192 | * it the same as ->cra_users being empty. | |
193 | */ | |
194 | if (spawns->next == NULL) | |
195 | break; | |
2bf29016 HX |
196 | } |
197 | } while ((spawns = crypto_more_spawns(alg, &stack, &top, | |
198 | &secondary_spawns))); | |
199 | ||
200 | list_for_each_entry_safe(spawn, n, &secondary_spawns, list) { | |
201 | if (spawn->alg) | |
202 | list_move(&spawn->list, &spawn->alg->cra_users); | |
203 | else | |
1f723710 | 204 | crypto_remove_instance(spawn->inst, list); |
6bfd4809 HX |
205 | } |
206 | } | |
89b596ba | 207 | EXPORT_SYMBOL_GPL(crypto_remove_spawns); |
6bfd4809 | 208 | |
73d3864a | 209 | static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg) |
4cc7720c HX |
210 | { |
211 | struct crypto_alg *q; | |
73d3864a | 212 | struct crypto_larval *larval; |
6bfd4809 HX |
213 | int ret = -EAGAIN; |
214 | ||
215 | if (crypto_is_dead(alg)) | |
73d3864a | 216 | goto err; |
6bfd4809 HX |
217 | |
218 | INIT_LIST_HEAD(&alg->cra_users); | |
219 | ||
73d3864a HX |
220 | /* No cheating! */ |
221 | alg->cra_flags &= ~CRYPTO_ALG_TESTED; | |
222 | ||
6bfd4809 | 223 | ret = -EEXIST; |
4cc7720c | 224 | |
cce9e06d | 225 | list_for_each_entry(q, &crypto_alg_list, cra_list) { |
4cc7720c | 226 | if (q == alg) |
73d3864a HX |
227 | goto err; |
228 | ||
b8e15992 HX |
229 | if (crypto_is_moribund(q)) |
230 | continue; | |
231 | ||
73d3864a HX |
232 | if (crypto_is_larval(q)) { |
233 | if (!strcmp(alg->cra_driver_name, q->cra_driver_name)) | |
234 | goto err; | |
235 | continue; | |
236 | } | |
237 | ||
238 | if (!strcmp(q->cra_driver_name, alg->cra_name) || | |
239 | !strcmp(q->cra_name, alg->cra_driver_name)) | |
240 | goto err; | |
241 | } | |
242 | ||
243 | larval = crypto_larval_alloc(alg->cra_name, | |
244 | alg->cra_flags | CRYPTO_ALG_TESTED, 0); | |
245 | if (IS_ERR(larval)) | |
246 | goto out; | |
247 | ||
248 | ret = -ENOENT; | |
249 | larval->adult = crypto_mod_get(alg); | |
250 | if (!larval->adult) | |
251 | goto free_larval; | |
252 | ||
ce8614a3 | 253 | refcount_set(&larval->alg.cra_refcnt, 1); |
73d3864a HX |
254 | memcpy(larval->alg.cra_driver_name, alg->cra_driver_name, |
255 | CRYPTO_MAX_ALG_NAME); | |
256 | larval->alg.cra_priority = alg->cra_priority; | |
257 | ||
258 | list_add(&alg->cra_list, &crypto_alg_list); | |
259 | list_add(&larval->alg.cra_list, &crypto_alg_list); | |
260 | ||
2ced2607 | 261 | #ifdef CONFIG_CRYPTO_STATS |
17c18f9e | 262 | memset(&alg->stats, 0, sizeof(alg->stats)); |
2ced2607 | 263 | #endif |
cac5818c | 264 | |
5357c6c4 | 265 | out: |
73d3864a HX |
266 | return larval; |
267 | ||
268 | free_larval: | |
269 | kfree(larval); | |
270 | err: | |
271 | larval = ERR_PTR(ret); | |
272 | goto out; | |
273 | } | |
274 | ||
275 | void crypto_alg_tested(const char *name, int err) | |
276 | { | |
277 | struct crypto_larval *test; | |
278 | struct crypto_alg *alg; | |
279 | struct crypto_alg *q; | |
280 | LIST_HEAD(list); | |
281 | ||
282 | down_write(&crypto_alg_sem); | |
283 | list_for_each_entry(q, &crypto_alg_list, cra_list) { | |
b8e15992 | 284 | if (crypto_is_moribund(q) || !crypto_is_larval(q)) |
73d3864a HX |
285 | continue; |
286 | ||
287 | test = (struct crypto_larval *)q; | |
288 | ||
289 | if (!strcmp(q->cra_driver_name, name)) | |
290 | goto found; | |
291 | } | |
292 | ||
c7235857 | 293 | pr_err("alg: Unexpected test result for %s: %d\n", name, err); |
73d3864a HX |
294 | goto unlock; |
295 | ||
296 | found: | |
b8e15992 | 297 | q->cra_flags |= CRYPTO_ALG_DEAD; |
73d3864a HX |
298 | alg = test->adult; |
299 | if (err || list_empty(&alg->cra_list)) | |
300 | goto complete; | |
301 | ||
302 | alg->cra_flags |= CRYPTO_ALG_TESTED; | |
303 | ||
304 | list_for_each_entry(q, &crypto_alg_list, cra_list) { | |
305 | if (q == alg) | |
306 | continue; | |
6bfd4809 HX |
307 | |
308 | if (crypto_is_moribund(q)) | |
309 | continue; | |
310 | ||
311 | if (crypto_is_larval(q)) { | |
2825982d HX |
312 | struct crypto_larval *larval = (void *)q; |
313 | ||
d8058480 HX |
314 | /* |
315 | * Check to see if either our generic name or | |
316 | * specific name can satisfy the name requested | |
317 | * by the larval entry q. | |
318 | */ | |
6bfd4809 HX |
319 | if (strcmp(alg->cra_name, q->cra_name) && |
320 | strcmp(alg->cra_driver_name, q->cra_name)) | |
321 | continue; | |
322 | ||
323 | if (larval->adult) | |
324 | continue; | |
492e2b63 HX |
325 | if ((q->cra_flags ^ alg->cra_flags) & larval->mask) |
326 | continue; | |
2825982d HX |
327 | if (!crypto_mod_get(alg)) |
328 | continue; | |
6bfd4809 | 329 | |
2825982d | 330 | larval->adult = alg; |
6bfd4809 | 331 | continue; |
2825982d | 332 | } |
6bfd4809 HX |
333 | |
334 | if (strcmp(alg->cra_name, q->cra_name)) | |
335 | continue; | |
336 | ||
337 | if (strcmp(alg->cra_driver_name, q->cra_driver_name) && | |
338 | q->cra_priority > alg->cra_priority) | |
339 | continue; | |
340 | ||
2bf29016 | 341 | crypto_remove_spawns(q, &list, alg); |
cce9e06d | 342 | } |
2825982d | 343 | |
73d3864a HX |
344 | complete: |
345 | complete_all(&test->completion); | |
2825982d | 346 | |
73d3864a HX |
347 | unlock: |
348 | up_write(&crypto_alg_sem); | |
349 | ||
350 | crypto_remove_final(&list); | |
cce9e06d | 351 | } |
73d3864a | 352 | EXPORT_SYMBOL_GPL(crypto_alg_tested); |
4cc7720c | 353 | |
22e5b20b | 354 | void crypto_remove_final(struct list_head *list) |
6bfd4809 HX |
355 | { |
356 | struct crypto_alg *alg; | |
357 | struct crypto_alg *n; | |
358 | ||
359 | list_for_each_entry_safe(alg, n, list, cra_list) { | |
360 | list_del_init(&alg->cra_list); | |
361 | crypto_alg_put(alg); | |
362 | } | |
363 | } | |
22e5b20b | 364 | EXPORT_SYMBOL_GPL(crypto_remove_final); |
6bfd4809 | 365 | |
73d3864a HX |
366 | static void crypto_wait_for_test(struct crypto_larval *larval) |
367 | { | |
368 | int err; | |
369 | ||
370 | err = crypto_probing_notify(CRYPTO_MSG_ALG_REGISTER, larval->adult); | |
371 | if (err != NOTIFY_STOP) { | |
372 | if (WARN_ON(err != NOTIFY_DONE)) | |
373 | goto out; | |
374 | crypto_alg_tested(larval->alg.cra_driver_name, 0); | |
375 | } | |
376 | ||
3fc89adb | 377 | err = wait_for_completion_killable(&larval->completion); |
73d3864a | 378 | WARN_ON(err); |
dd8b083f MP |
379 | if (!err) |
380 | crypto_probing_notify(CRYPTO_MSG_ALG_LOADED, larval); | |
73d3864a HX |
381 | |
382 | out: | |
383 | crypto_larval_kill(&larval->alg); | |
384 | } | |
385 | ||
4cc7720c HX |
386 | int crypto_register_alg(struct crypto_alg *alg) |
387 | { | |
73d3864a | 388 | struct crypto_larval *larval; |
4cc7720c HX |
389 | int err; |
390 | ||
d6040764 | 391 | alg->cra_flags &= ~CRYPTO_ALG_DEAD; |
4cc7720c HX |
392 | err = crypto_check_alg(alg); |
393 | if (err) | |
394 | return err; | |
395 | ||
396 | down_write(&crypto_alg_sem); | |
73d3864a | 397 | larval = __crypto_register_alg(alg); |
4cc7720c HX |
398 | up_write(&crypto_alg_sem); |
399 | ||
73d3864a HX |
400 | if (IS_ERR(larval)) |
401 | return PTR_ERR(larval); | |
402 | ||
403 | crypto_wait_for_test(larval); | |
404 | return 0; | |
4cc7720c | 405 | } |
cce9e06d HX |
406 | EXPORT_SYMBOL_GPL(crypto_register_alg); |
407 | ||
6bfd4809 HX |
408 | static int crypto_remove_alg(struct crypto_alg *alg, struct list_head *list) |
409 | { | |
410 | if (unlikely(list_empty(&alg->cra_list))) | |
411 | return -ENOENT; | |
412 | ||
413 | alg->cra_flags |= CRYPTO_ALG_DEAD; | |
414 | ||
6bfd4809 | 415 | list_del_init(&alg->cra_list); |
2bf29016 | 416 | crypto_remove_spawns(alg, list, NULL); |
6bfd4809 HX |
417 | |
418 | return 0; | |
419 | } | |
420 | ||
cce9e06d HX |
421 | int crypto_unregister_alg(struct crypto_alg *alg) |
422 | { | |
6bfd4809 HX |
423 | int ret; |
424 | LIST_HEAD(list); | |
5357c6c4 | 425 | |
cce9e06d | 426 | down_write(&crypto_alg_sem); |
6bfd4809 | 427 | ret = crypto_remove_alg(alg, &list); |
cce9e06d HX |
428 | up_write(&crypto_alg_sem); |
429 | ||
430 | if (ret) | |
431 | return ret; | |
432 | ||
ce8614a3 | 433 | BUG_ON(refcount_read(&alg->cra_refcnt) != 1); |
cce9e06d HX |
434 | if (alg->cra_destroy) |
435 | alg->cra_destroy(alg); | |
436 | ||
6bfd4809 | 437 | crypto_remove_final(&list); |
cce9e06d HX |
438 | return 0; |
439 | } | |
440 | EXPORT_SYMBOL_GPL(crypto_unregister_alg); | |
441 | ||
4b004346 MB |
442 | int crypto_register_algs(struct crypto_alg *algs, int count) |
443 | { | |
444 | int i, ret; | |
445 | ||
446 | for (i = 0; i < count; i++) { | |
447 | ret = crypto_register_alg(&algs[i]); | |
448 | if (ret) | |
449 | goto err; | |
450 | } | |
451 | ||
452 | return 0; | |
453 | ||
454 | err: | |
455 | for (--i; i >= 0; --i) | |
456 | crypto_unregister_alg(&algs[i]); | |
457 | ||
458 | return ret; | |
459 | } | |
460 | EXPORT_SYMBOL_GPL(crypto_register_algs); | |
461 | ||
462 | int crypto_unregister_algs(struct crypto_alg *algs, int count) | |
463 | { | |
464 | int i, ret; | |
465 | ||
466 | for (i = 0; i < count; i++) { | |
467 | ret = crypto_unregister_alg(&algs[i]); | |
468 | if (ret) | |
469 | pr_err("Failed to unregister %s %s: %d\n", | |
470 | algs[i].cra_driver_name, algs[i].cra_name, ret); | |
471 | } | |
472 | ||
473 | return 0; | |
474 | } | |
475 | EXPORT_SYMBOL_GPL(crypto_unregister_algs); | |
476 | ||
4cc7720c HX |
477 | int crypto_register_template(struct crypto_template *tmpl) |
478 | { | |
479 | struct crypto_template *q; | |
480 | int err = -EEXIST; | |
481 | ||
482 | down_write(&crypto_alg_sem); | |
483 | ||
002c77a4 JW |
484 | crypto_check_module_sig(tmpl->module); |
485 | ||
4cc7720c HX |
486 | list_for_each_entry(q, &crypto_template_list, list) { |
487 | if (q == tmpl) | |
488 | goto out; | |
489 | } | |
490 | ||
491 | list_add(&tmpl->list, &crypto_template_list); | |
492 | err = 0; | |
493 | out: | |
494 | up_write(&crypto_alg_sem); | |
495 | return err; | |
496 | } | |
497 | EXPORT_SYMBOL_GPL(crypto_register_template); | |
498 | ||
499 | void crypto_unregister_template(struct crypto_template *tmpl) | |
500 | { | |
501 | struct crypto_instance *inst; | |
b67bfe0d | 502 | struct hlist_node *n; |
4cc7720c | 503 | struct hlist_head *list; |
6bfd4809 | 504 | LIST_HEAD(users); |
4cc7720c HX |
505 | |
506 | down_write(&crypto_alg_sem); | |
507 | ||
508 | BUG_ON(list_empty(&tmpl->list)); | |
509 | list_del_init(&tmpl->list); | |
510 | ||
511 | list = &tmpl->instances; | |
b67bfe0d | 512 | hlist_for_each_entry(inst, list, list) { |
6bfd4809 | 513 | int err = crypto_remove_alg(&inst->alg, &users); |
0efcb8d5 | 514 | |
6bfd4809 | 515 | BUG_ON(err); |
4cc7720c HX |
516 | } |
517 | ||
518 | up_write(&crypto_alg_sem); | |
519 | ||
b67bfe0d | 520 | hlist_for_each_entry_safe(inst, n, list, list) { |
ce8614a3 | 521 | BUG_ON(refcount_read(&inst->alg.cra_refcnt) != 1); |
319382a6 | 522 | crypto_free_instance(inst); |
4cc7720c | 523 | } |
6bfd4809 | 524 | crypto_remove_final(&users); |
4cc7720c HX |
525 | } |
526 | EXPORT_SYMBOL_GPL(crypto_unregister_template); | |
527 | ||
528 | static struct crypto_template *__crypto_lookup_template(const char *name) | |
529 | { | |
530 | struct crypto_template *q, *tmpl = NULL; | |
531 | ||
532 | down_read(&crypto_alg_sem); | |
533 | list_for_each_entry(q, &crypto_template_list, list) { | |
534 | if (strcmp(q->name, name)) | |
535 | continue; | |
536 | if (unlikely(!crypto_tmpl_get(q))) | |
537 | continue; | |
538 | ||
539 | tmpl = q; | |
540 | break; | |
541 | } | |
542 | up_read(&crypto_alg_sem); | |
543 | ||
544 | return tmpl; | |
545 | } | |
546 | ||
547 | struct crypto_template *crypto_lookup_template(const char *name) | |
548 | { | |
4943ba16 KC |
549 | return try_then_request_module(__crypto_lookup_template(name), |
550 | "crypto-%s", name); | |
4cc7720c HX |
551 | } |
552 | EXPORT_SYMBOL_GPL(crypto_lookup_template); | |
553 | ||
554 | int crypto_register_instance(struct crypto_template *tmpl, | |
555 | struct crypto_instance *inst) | |
556 | { | |
73d3864a HX |
557 | struct crypto_larval *larval; |
558 | int err; | |
4cc7720c | 559 | |
4cc7720c HX |
560 | err = crypto_check_alg(&inst->alg); |
561 | if (err) | |
9c521a20 SM |
562 | return err; |
563 | ||
4cc7720c | 564 | inst->alg.cra_module = tmpl->module; |
64a947b1 | 565 | inst->alg.cra_flags |= CRYPTO_ALG_INSTANCE; |
4cc7720c HX |
566 | |
567 | down_write(&crypto_alg_sem); | |
568 | ||
73d3864a HX |
569 | larval = __crypto_register_alg(&inst->alg); |
570 | if (IS_ERR(larval)) | |
4cc7720c HX |
571 | goto unlock; |
572 | ||
573 | hlist_add_head(&inst->list, &tmpl->instances); | |
574 | inst->tmpl = tmpl; | |
575 | ||
576 | unlock: | |
577 | up_write(&crypto_alg_sem); | |
578 | ||
73d3864a HX |
579 | err = PTR_ERR(larval); |
580 | if (IS_ERR(larval)) | |
581 | goto err; | |
582 | ||
583 | crypto_wait_for_test(larval); | |
584 | err = 0; | |
6bfd4809 | 585 | |
4cc7720c HX |
586 | err: |
587 | return err; | |
588 | } | |
589 | EXPORT_SYMBOL_GPL(crypto_register_instance); | |
ce3fd840 | 590 | |
87b16756 | 591 | int crypto_unregister_instance(struct crypto_instance *inst) |
ce3fd840 | 592 | { |
1f723710 | 593 | LIST_HEAD(list); |
ce3fd840 | 594 | |
ce3fd840 SK |
595 | down_write(&crypto_alg_sem); |
596 | ||
87b16756 | 597 | crypto_remove_spawns(&inst->alg, &list, NULL); |
1f723710 | 598 | crypto_remove_instance(inst, &list); |
ce3fd840 SK |
599 | |
600 | up_write(&crypto_alg_sem); | |
601 | ||
1f723710 | 602 | crypto_remove_final(&list); |
ce3fd840 SK |
603 | |
604 | return 0; | |
605 | } | |
606 | EXPORT_SYMBOL_GPL(crypto_unregister_instance); | |
4cc7720c | 607 | |
6bfd4809 | 608 | int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg, |
a73e6996 | 609 | struct crypto_instance *inst, u32 mask) |
6bfd4809 HX |
610 | { |
611 | int err = -EAGAIN; | |
612 | ||
613 | spawn->inst = inst; | |
a73e6996 | 614 | spawn->mask = mask; |
6bfd4809 HX |
615 | |
616 | down_write(&crypto_alg_sem); | |
617 | if (!crypto_is_moribund(alg)) { | |
618 | list_add(&spawn->list, &alg->cra_users); | |
619 | spawn->alg = alg; | |
620 | err = 0; | |
621 | } | |
622 | up_write(&crypto_alg_sem); | |
623 | ||
624 | return err; | |
625 | } | |
626 | EXPORT_SYMBOL_GPL(crypto_init_spawn); | |
627 | ||
97eedce1 HX |
628 | int crypto_init_spawn2(struct crypto_spawn *spawn, struct crypto_alg *alg, |
629 | struct crypto_instance *inst, | |
630 | const struct crypto_type *frontend) | |
631 | { | |
632 | int err = -EINVAL; | |
633 | ||
c614e109 | 634 | if ((alg->cra_flags ^ frontend->type) & frontend->maskset) |
97eedce1 HX |
635 | goto out; |
636 | ||
637 | spawn->frontend = frontend; | |
638 | err = crypto_init_spawn(spawn, alg, inst, frontend->maskset); | |
639 | ||
640 | out: | |
641 | return err; | |
642 | } | |
643 | EXPORT_SYMBOL_GPL(crypto_init_spawn2); | |
644 | ||
d6ef2f19 HX |
645 | int crypto_grab_spawn(struct crypto_spawn *spawn, const char *name, |
646 | u32 type, u32 mask) | |
647 | { | |
648 | struct crypto_alg *alg; | |
649 | int err; | |
650 | ||
651 | alg = crypto_find_alg(name, spawn->frontend, type, mask); | |
652 | if (IS_ERR(alg)) | |
653 | return PTR_ERR(alg); | |
654 | ||
655 | err = crypto_init_spawn(spawn, alg, spawn->inst, mask); | |
656 | crypto_mod_put(alg); | |
657 | return err; | |
658 | } | |
659 | EXPORT_SYMBOL_GPL(crypto_grab_spawn); | |
660 | ||
6bfd4809 HX |
661 | void crypto_drop_spawn(struct crypto_spawn *spawn) |
662 | { | |
7ede5a5b HX |
663 | if (!spawn->alg) |
664 | return; | |
665 | ||
6bfd4809 HX |
666 | down_write(&crypto_alg_sem); |
667 | list_del(&spawn->list); | |
668 | up_write(&crypto_alg_sem); | |
669 | } | |
670 | EXPORT_SYMBOL_GPL(crypto_drop_spawn); | |
671 | ||
97eedce1 | 672 | static struct crypto_alg *crypto_spawn_alg(struct crypto_spawn *spawn) |
6bfd4809 HX |
673 | { |
674 | struct crypto_alg *alg; | |
675 | struct crypto_alg *alg2; | |
6bfd4809 HX |
676 | |
677 | down_read(&crypto_alg_sem); | |
678 | alg = spawn->alg; | |
679 | alg2 = alg; | |
680 | if (alg2) | |
681 | alg2 = crypto_mod_get(alg2); | |
682 | up_read(&crypto_alg_sem); | |
683 | ||
684 | if (!alg2) { | |
685 | if (alg) | |
686 | crypto_shoot_alg(alg); | |
687 | return ERR_PTR(-EAGAIN); | |
688 | } | |
689 | ||
97eedce1 HX |
690 | return alg; |
691 | } | |
692 | ||
693 | struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type, | |
694 | u32 mask) | |
695 | { | |
696 | struct crypto_alg *alg; | |
697 | struct crypto_tfm *tfm; | |
698 | ||
699 | alg = crypto_spawn_alg(spawn); | |
700 | if (IS_ERR(alg)) | |
701 | return ERR_CAST(alg); | |
702 | ||
2e306ee0 HX |
703 | tfm = ERR_PTR(-EINVAL); |
704 | if (unlikely((alg->cra_flags ^ type) & mask)) | |
705 | goto out_put_alg; | |
706 | ||
27d2a330 | 707 | tfm = __crypto_alloc_tfm(alg, type, mask); |
6bfd4809 | 708 | if (IS_ERR(tfm)) |
2e306ee0 HX |
709 | goto out_put_alg; |
710 | ||
711 | return tfm; | |
6bfd4809 | 712 | |
2e306ee0 HX |
713 | out_put_alg: |
714 | crypto_mod_put(alg); | |
6bfd4809 HX |
715 | return tfm; |
716 | } | |
717 | EXPORT_SYMBOL_GPL(crypto_spawn_tfm); | |
718 | ||
97eedce1 HX |
719 | void *crypto_spawn_tfm2(struct crypto_spawn *spawn) |
720 | { | |
721 | struct crypto_alg *alg; | |
722 | struct crypto_tfm *tfm; | |
723 | ||
724 | alg = crypto_spawn_alg(spawn); | |
725 | if (IS_ERR(alg)) | |
726 | return ERR_CAST(alg); | |
727 | ||
728 | tfm = crypto_create_tfm(alg, spawn->frontend); | |
729 | if (IS_ERR(tfm)) | |
730 | goto out_put_alg; | |
731 | ||
732 | return tfm; | |
733 | ||
734 | out_put_alg: | |
735 | crypto_mod_put(alg); | |
736 | return tfm; | |
737 | } | |
738 | EXPORT_SYMBOL_GPL(crypto_spawn_tfm2); | |
739 | ||
2825982d HX |
740 | int crypto_register_notifier(struct notifier_block *nb) |
741 | { | |
742 | return blocking_notifier_chain_register(&crypto_chain, nb); | |
743 | } | |
744 | EXPORT_SYMBOL_GPL(crypto_register_notifier); | |
745 | ||
746 | int crypto_unregister_notifier(struct notifier_block *nb) | |
747 | { | |
748 | return blocking_notifier_chain_unregister(&crypto_chain, nb); | |
749 | } | |
750 | EXPORT_SYMBOL_GPL(crypto_unregister_notifier); | |
751 | ||
ebc610e5 | 752 | struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb) |
7fed0bf2 | 753 | { |
39e1ee01 | 754 | struct rtattr *rta = tb[0]; |
ebc610e5 HX |
755 | struct crypto_attr_type *algt; |
756 | ||
757 | if (!rta) | |
758 | return ERR_PTR(-ENOENT); | |
759 | if (RTA_PAYLOAD(rta) < sizeof(*algt)) | |
760 | return ERR_PTR(-EINVAL); | |
39e1ee01 HX |
761 | if (rta->rta_type != CRYPTOA_TYPE) |
762 | return ERR_PTR(-EINVAL); | |
ebc610e5 HX |
763 | |
764 | algt = RTA_DATA(rta); | |
765 | ||
766 | return algt; | |
767 | } | |
768 | EXPORT_SYMBOL_GPL(crypto_get_attr_type); | |
769 | ||
770 | int crypto_check_attr_type(struct rtattr **tb, u32 type) | |
771 | { | |
772 | struct crypto_attr_type *algt; | |
773 | ||
774 | algt = crypto_get_attr_type(tb); | |
775 | if (IS_ERR(algt)) | |
776 | return PTR_ERR(algt); | |
777 | ||
778 | if ((algt->type ^ type) & algt->mask) | |
779 | return -EINVAL; | |
780 | ||
781 | return 0; | |
782 | } | |
783 | EXPORT_SYMBOL_GPL(crypto_check_attr_type); | |
784 | ||
68b6c7d6 | 785 | const char *crypto_attr_alg_name(struct rtattr *rta) |
ebc610e5 | 786 | { |
7fed0bf2 HX |
787 | struct crypto_attr_alg *alga; |
788 | ||
ebc610e5 HX |
789 | if (!rta) |
790 | return ERR_PTR(-ENOENT); | |
791 | if (RTA_PAYLOAD(rta) < sizeof(*alga)) | |
7fed0bf2 | 792 | return ERR_PTR(-EINVAL); |
39e1ee01 HX |
793 | if (rta->rta_type != CRYPTOA_ALG) |
794 | return ERR_PTR(-EINVAL); | |
7fed0bf2 HX |
795 | |
796 | alga = RTA_DATA(rta); | |
797 | alga->name[CRYPTO_MAX_ALG_NAME - 1] = 0; | |
798 | ||
68b6c7d6 HX |
799 | return alga->name; |
800 | } | |
801 | EXPORT_SYMBOL_GPL(crypto_attr_alg_name); | |
802 | ||
d06854f0 HX |
803 | struct crypto_alg *crypto_attr_alg2(struct rtattr *rta, |
804 | const struct crypto_type *frontend, | |
805 | u32 type, u32 mask) | |
68b6c7d6 HX |
806 | { |
807 | const char *name; | |
68b6c7d6 HX |
808 | |
809 | name = crypto_attr_alg_name(rta); | |
68b6c7d6 | 810 | if (IS_ERR(name)) |
3e8afe35 | 811 | return ERR_CAST(name); |
68b6c7d6 | 812 | |
d06854f0 | 813 | return crypto_find_alg(name, frontend, type, mask); |
7fed0bf2 | 814 | } |
d06854f0 | 815 | EXPORT_SYMBOL_GPL(crypto_attr_alg2); |
3c09f17c HX |
816 | |
817 | int crypto_attr_u32(struct rtattr *rta, u32 *num) | |
818 | { | |
819 | struct crypto_attr_u32 *nu32; | |
820 | ||
821 | if (!rta) | |
822 | return -ENOENT; | |
823 | if (RTA_PAYLOAD(rta) < sizeof(*nu32)) | |
824 | return -EINVAL; | |
825 | if (rta->rta_type != CRYPTOA_U32) | |
826 | return -EINVAL; | |
827 | ||
828 | nu32 = RTA_DATA(rta); | |
829 | *num = nu32->num; | |
830 | ||
831 | return 0; | |
832 | } | |
833 | EXPORT_SYMBOL_GPL(crypto_attr_u32); | |
7fed0bf2 | 834 | |
32f27c74 HX |
835 | int crypto_inst_setname(struct crypto_instance *inst, const char *name, |
836 | struct crypto_alg *alg) | |
837 | { | |
838 | if (snprintf(inst->alg.cra_name, CRYPTO_MAX_ALG_NAME, "%s(%s)", name, | |
839 | alg->cra_name) >= CRYPTO_MAX_ALG_NAME) | |
840 | return -ENAMETOOLONG; | |
841 | ||
842 | if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s(%s)", | |
843 | name, alg->cra_driver_name) >= CRYPTO_MAX_ALG_NAME) | |
844 | return -ENAMETOOLONG; | |
845 | ||
846 | return 0; | |
847 | } | |
848 | EXPORT_SYMBOL_GPL(crypto_inst_setname); | |
849 | ||
70ec7bb9 HX |
850 | void *crypto_alloc_instance2(const char *name, struct crypto_alg *alg, |
851 | unsigned int head) | |
7fed0bf2 HX |
852 | { |
853 | struct crypto_instance *inst; | |
70ec7bb9 | 854 | char *p; |
7fed0bf2 HX |
855 | int err; |
856 | ||
70ec7bb9 HX |
857 | p = kzalloc(head + sizeof(*inst) + sizeof(struct crypto_spawn), |
858 | GFP_KERNEL); | |
859 | if (!p) | |
7fed0bf2 HX |
860 | return ERR_PTR(-ENOMEM); |
861 | ||
70ec7bb9 HX |
862 | inst = (void *)(p + head); |
863 | ||
32f27c74 HX |
864 | err = crypto_inst_setname(inst, name, alg); |
865 | if (err) | |
7fed0bf2 HX |
866 | goto err_free_inst; |
867 | ||
70ec7bb9 HX |
868 | return p; |
869 | ||
870 | err_free_inst: | |
871 | kfree(p); | |
872 | return ERR_PTR(err); | |
873 | } | |
874 | EXPORT_SYMBOL_GPL(crypto_alloc_instance2); | |
875 | ||
876 | struct crypto_instance *crypto_alloc_instance(const char *name, | |
877 | struct crypto_alg *alg) | |
878 | { | |
879 | struct crypto_instance *inst; | |
880 | struct crypto_spawn *spawn; | |
881 | int err; | |
882 | ||
883 | inst = crypto_alloc_instance2(name, alg, 0); | |
884 | if (IS_ERR(inst)) | |
885 | goto out; | |
886 | ||
7fed0bf2 | 887 | spawn = crypto_instance_ctx(inst); |
a73e6996 HX |
888 | err = crypto_init_spawn(spawn, alg, inst, |
889 | CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC); | |
7fed0bf2 HX |
890 | |
891 | if (err) | |
892 | goto err_free_inst; | |
893 | ||
894 | return inst; | |
895 | ||
896 | err_free_inst: | |
897 | kfree(inst); | |
70ec7bb9 HX |
898 | inst = ERR_PTR(err); |
899 | ||
900 | out: | |
901 | return inst; | |
7fed0bf2 HX |
902 | } |
903 | EXPORT_SYMBOL_GPL(crypto_alloc_instance); | |
904 | ||
b5b7f088 HX |
905 | void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen) |
906 | { | |
907 | INIT_LIST_HEAD(&queue->list); | |
908 | queue->backlog = &queue->list; | |
909 | queue->qlen = 0; | |
910 | queue->max_qlen = max_qlen; | |
911 | } | |
912 | EXPORT_SYMBOL_GPL(crypto_init_queue); | |
913 | ||
914 | int crypto_enqueue_request(struct crypto_queue *queue, | |
915 | struct crypto_async_request *request) | |
916 | { | |
917 | int err = -EINPROGRESS; | |
918 | ||
919 | if (unlikely(queue->qlen >= queue->max_qlen)) { | |
6b80ea38 GBY |
920 | if (!(request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { |
921 | err = -ENOSPC; | |
b5b7f088 | 922 | goto out; |
6b80ea38 GBY |
923 | } |
924 | err = -EBUSY; | |
b5b7f088 HX |
925 | if (queue->backlog == &queue->list) |
926 | queue->backlog = &request->list; | |
927 | } | |
928 | ||
929 | queue->qlen++; | |
930 | list_add_tail(&request->list, &queue->list); | |
931 | ||
932 | out: | |
933 | return err; | |
934 | } | |
935 | EXPORT_SYMBOL_GPL(crypto_enqueue_request); | |
936 | ||
31d228cc | 937 | struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue) |
b5b7f088 HX |
938 | { |
939 | struct list_head *request; | |
940 | ||
941 | if (unlikely(!queue->qlen)) | |
942 | return NULL; | |
943 | ||
944 | queue->qlen--; | |
945 | ||
946 | if (queue->backlog != &queue->list) | |
947 | queue->backlog = queue->backlog->next; | |
948 | ||
949 | request = queue->list.next; | |
950 | list_del(request); | |
951 | ||
31d228cc | 952 | return list_entry(request, struct crypto_async_request, list); |
b5b7f088 HX |
953 | } |
954 | EXPORT_SYMBOL_GPL(crypto_dequeue_request); | |
955 | ||
956 | int crypto_tfm_in_queue(struct crypto_queue *queue, struct crypto_tfm *tfm) | |
957 | { | |
958 | struct crypto_async_request *req; | |
959 | ||
960 | list_for_each_entry(req, &queue->list, list) { | |
961 | if (req->tfm == tfm) | |
962 | return 1; | |
963 | } | |
964 | ||
965 | return 0; | |
966 | } | |
967 | EXPORT_SYMBOL_GPL(crypto_tfm_in_queue); | |
968 | ||
7613636d HX |
969 | static inline void crypto_inc_byte(u8 *a, unsigned int size) |
970 | { | |
971 | u8 *b = (a + size); | |
972 | u8 c; | |
973 | ||
974 | for (; size; size--) { | |
975 | c = *--b + 1; | |
976 | *b = c; | |
977 | if (c) | |
978 | break; | |
979 | } | |
980 | } | |
981 | ||
982 | void crypto_inc(u8 *a, unsigned int size) | |
983 | { | |
984 | __be32 *b = (__be32 *)(a + size); | |
985 | u32 c; | |
986 | ||
db91af0f | 987 | if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) || |
27c539ae | 988 | IS_ALIGNED((unsigned long)b, __alignof__(*b))) |
db91af0f AB |
989 | for (; size >= 4; size -= 4) { |
990 | c = be32_to_cpu(*--b) + 1; | |
991 | *b = cpu_to_be32(c); | |
27c539ae | 992 | if (likely(c)) |
db91af0f AB |
993 | return; |
994 | } | |
7613636d HX |
995 | |
996 | crypto_inc_byte(a, size); | |
997 | } | |
998 | EXPORT_SYMBOL_GPL(crypto_inc); | |
999 | ||
a7c391f0 | 1000 | void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int len) |
7613636d | 1001 | { |
db91af0f AB |
1002 | int relalign = 0; |
1003 | ||
1004 | if (!IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) { | |
1005 | int size = sizeof(unsigned long); | |
a7c391f0 AB |
1006 | int d = (((unsigned long)dst ^ (unsigned long)src1) | |
1007 | ((unsigned long)dst ^ (unsigned long)src2)) & | |
1008 | (size - 1); | |
db91af0f AB |
1009 | |
1010 | relalign = d ? 1 << __ffs(d) : size; | |
1011 | ||
1012 | /* | |
1013 | * If we care about alignment, process as many bytes as | |
1014 | * needed to advance dst and src to values whose alignments | |
1015 | * equal their relative alignment. This will allow us to | |
1016 | * process the remainder of the input using optimal strides. | |
1017 | */ | |
1018 | while (((unsigned long)dst & (relalign - 1)) && len > 0) { | |
a7c391f0 | 1019 | *dst++ = *src1++ ^ *src2++; |
db91af0f AB |
1020 | len--; |
1021 | } | |
1022 | } | |
7613636d | 1023 | |
db91af0f | 1024 | while (IS_ENABLED(CONFIG_64BIT) && len >= 8 && !(relalign & 7)) { |
a7c391f0 | 1025 | *(u64 *)dst = *(u64 *)src1 ^ *(u64 *)src2; |
db91af0f | 1026 | dst += 8; |
a7c391f0 AB |
1027 | src1 += 8; |
1028 | src2 += 8; | |
db91af0f AB |
1029 | len -= 8; |
1030 | } | |
7613636d | 1031 | |
db91af0f | 1032 | while (len >= 4 && !(relalign & 3)) { |
a7c391f0 | 1033 | *(u32 *)dst = *(u32 *)src1 ^ *(u32 *)src2; |
db91af0f | 1034 | dst += 4; |
a7c391f0 AB |
1035 | src1 += 4; |
1036 | src2 += 4; | |
db91af0f AB |
1037 | len -= 4; |
1038 | } | |
1039 | ||
1040 | while (len >= 2 && !(relalign & 1)) { | |
a7c391f0 | 1041 | *(u16 *)dst = *(u16 *)src1 ^ *(u16 *)src2; |
db91af0f | 1042 | dst += 2; |
a7c391f0 AB |
1043 | src1 += 2; |
1044 | src2 += 2; | |
db91af0f AB |
1045 | len -= 2; |
1046 | } | |
7613636d | 1047 | |
db91af0f | 1048 | while (len--) |
a7c391f0 | 1049 | *dst++ = *src1++ ^ *src2++; |
7613636d | 1050 | } |
db91af0f | 1051 | EXPORT_SYMBOL_GPL(__crypto_xor); |
7613636d | 1052 | |
38d21433 HX |
1053 | unsigned int crypto_alg_extsize(struct crypto_alg *alg) |
1054 | { | |
c2110f28 HX |
1055 | return alg->cra_ctxsize + |
1056 | (alg->cra_alignmask & ~(crypto_tfm_ctx_alignment() - 1)); | |
38d21433 HX |
1057 | } |
1058 | EXPORT_SYMBOL_GPL(crypto_alg_extsize); | |
1059 | ||
f2aefdab HX |
1060 | int crypto_type_has_alg(const char *name, const struct crypto_type *frontend, |
1061 | u32 type, u32 mask) | |
1062 | { | |
1063 | int ret = 0; | |
1064 | struct crypto_alg *alg = crypto_find_alg(name, frontend, type, mask); | |
1065 | ||
1066 | if (!IS_ERR(alg)) { | |
1067 | crypto_mod_put(alg); | |
1068 | ret = 1; | |
1069 | } | |
1070 | ||
1071 | return ret; | |
1072 | } | |
1073 | EXPORT_SYMBOL_GPL(crypto_type_has_alg); | |
1074 | ||
f7d76e05 CL |
1075 | #ifdef CONFIG_CRYPTO_STATS |
1076 | void crypto_stats_get(struct crypto_alg *alg) | |
1077 | { | |
1078 | crypto_alg_get(alg); | |
1079 | } | |
1080 | EXPORT_SYMBOL_GPL(crypto_stats_get); | |
1081 | ||
1082 | void crypto_stats_ablkcipher_encrypt(unsigned int nbytes, int ret, | |
1083 | struct crypto_alg *alg) | |
1084 | { | |
1085 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1086 | atomic64_inc(&alg->stats.cipher.err_cnt); |
f7d76e05 | 1087 | } else { |
17c18f9e CL |
1088 | atomic64_inc(&alg->stats.cipher.encrypt_cnt); |
1089 | atomic64_add(nbytes, &alg->stats.cipher.encrypt_tlen); | |
f7d76e05 CL |
1090 | } |
1091 | crypto_alg_put(alg); | |
1092 | } | |
1093 | EXPORT_SYMBOL_GPL(crypto_stats_ablkcipher_encrypt); | |
1094 | ||
1095 | void crypto_stats_ablkcipher_decrypt(unsigned int nbytes, int ret, | |
1096 | struct crypto_alg *alg) | |
1097 | { | |
1098 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1099 | atomic64_inc(&alg->stats.cipher.err_cnt); |
f7d76e05 | 1100 | } else { |
17c18f9e CL |
1101 | atomic64_inc(&alg->stats.cipher.decrypt_cnt); |
1102 | atomic64_add(nbytes, &alg->stats.cipher.decrypt_tlen); | |
f7d76e05 CL |
1103 | } |
1104 | crypto_alg_put(alg); | |
1105 | } | |
1106 | EXPORT_SYMBOL_GPL(crypto_stats_ablkcipher_decrypt); | |
1107 | ||
1108 | void crypto_stats_aead_encrypt(unsigned int cryptlen, struct crypto_alg *alg, | |
1109 | int ret) | |
1110 | { | |
1111 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1112 | atomic64_inc(&alg->stats.aead.err_cnt); |
f7d76e05 | 1113 | } else { |
17c18f9e CL |
1114 | atomic64_inc(&alg->stats.aead.encrypt_cnt); |
1115 | atomic64_add(cryptlen, &alg->stats.aead.encrypt_tlen); | |
f7d76e05 CL |
1116 | } |
1117 | crypto_alg_put(alg); | |
1118 | } | |
1119 | EXPORT_SYMBOL_GPL(crypto_stats_aead_encrypt); | |
1120 | ||
1121 | void crypto_stats_aead_decrypt(unsigned int cryptlen, struct crypto_alg *alg, | |
1122 | int ret) | |
1123 | { | |
1124 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1125 | atomic64_inc(&alg->stats.aead.err_cnt); |
f7d76e05 | 1126 | } else { |
17c18f9e CL |
1127 | atomic64_inc(&alg->stats.aead.decrypt_cnt); |
1128 | atomic64_add(cryptlen, &alg->stats.aead.decrypt_tlen); | |
f7d76e05 CL |
1129 | } |
1130 | crypto_alg_put(alg); | |
1131 | } | |
1132 | EXPORT_SYMBOL_GPL(crypto_stats_aead_decrypt); | |
1133 | ||
1134 | void crypto_stats_akcipher_encrypt(unsigned int src_len, int ret, | |
1135 | struct crypto_alg *alg) | |
1136 | { | |
1137 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1138 | atomic64_inc(&alg->stats.akcipher.err_cnt); |
f7d76e05 | 1139 | } else { |
17c18f9e CL |
1140 | atomic64_inc(&alg->stats.akcipher.encrypt_cnt); |
1141 | atomic64_add(src_len, &alg->stats.akcipher.encrypt_tlen); | |
f7d76e05 CL |
1142 | } |
1143 | crypto_alg_put(alg); | |
1144 | } | |
1145 | EXPORT_SYMBOL_GPL(crypto_stats_akcipher_encrypt); | |
1146 | ||
1147 | void crypto_stats_akcipher_decrypt(unsigned int src_len, int ret, | |
1148 | struct crypto_alg *alg) | |
1149 | { | |
1150 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1151 | atomic64_inc(&alg->stats.akcipher.err_cnt); |
f7d76e05 | 1152 | } else { |
17c18f9e CL |
1153 | atomic64_inc(&alg->stats.akcipher.decrypt_cnt); |
1154 | atomic64_add(src_len, &alg->stats.akcipher.decrypt_tlen); | |
f7d76e05 CL |
1155 | } |
1156 | crypto_alg_put(alg); | |
1157 | } | |
1158 | EXPORT_SYMBOL_GPL(crypto_stats_akcipher_decrypt); | |
1159 | ||
1160 | void crypto_stats_akcipher_sign(int ret, struct crypto_alg *alg) | |
1161 | { | |
1162 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) | |
44f13133 | 1163 | atomic64_inc(&alg->stats.akcipher.err_cnt); |
f7d76e05 | 1164 | else |
17c18f9e | 1165 | atomic64_inc(&alg->stats.akcipher.sign_cnt); |
f7d76e05 CL |
1166 | crypto_alg_put(alg); |
1167 | } | |
1168 | EXPORT_SYMBOL_GPL(crypto_stats_akcipher_sign); | |
1169 | ||
1170 | void crypto_stats_akcipher_verify(int ret, struct crypto_alg *alg) | |
1171 | { | |
1172 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) | |
44f13133 | 1173 | atomic64_inc(&alg->stats.akcipher.err_cnt); |
f7d76e05 | 1174 | else |
17c18f9e | 1175 | atomic64_inc(&alg->stats.akcipher.verify_cnt); |
f7d76e05 CL |
1176 | crypto_alg_put(alg); |
1177 | } | |
1178 | EXPORT_SYMBOL_GPL(crypto_stats_akcipher_verify); | |
1179 | ||
1180 | void crypto_stats_compress(unsigned int slen, int ret, struct crypto_alg *alg) | |
1181 | { | |
1182 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1183 | atomic64_inc(&alg->stats.compress.err_cnt); |
f7d76e05 | 1184 | } else { |
17c18f9e CL |
1185 | atomic64_inc(&alg->stats.compress.compress_cnt); |
1186 | atomic64_add(slen, &alg->stats.compress.compress_tlen); | |
f7d76e05 CL |
1187 | } |
1188 | crypto_alg_put(alg); | |
1189 | } | |
1190 | EXPORT_SYMBOL_GPL(crypto_stats_compress); | |
1191 | ||
1192 | void crypto_stats_decompress(unsigned int slen, int ret, struct crypto_alg *alg) | |
1193 | { | |
1194 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1195 | atomic64_inc(&alg->stats.compress.err_cnt); |
f7d76e05 | 1196 | } else { |
17c18f9e CL |
1197 | atomic64_inc(&alg->stats.compress.decompress_cnt); |
1198 | atomic64_add(slen, &alg->stats.compress.decompress_tlen); | |
f7d76e05 CL |
1199 | } |
1200 | crypto_alg_put(alg); | |
1201 | } | |
1202 | EXPORT_SYMBOL_GPL(crypto_stats_decompress); | |
1203 | ||
1204 | void crypto_stats_ahash_update(unsigned int nbytes, int ret, | |
1205 | struct crypto_alg *alg) | |
1206 | { | |
1207 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) | |
44f13133 | 1208 | atomic64_inc(&alg->stats.hash.err_cnt); |
f7d76e05 | 1209 | else |
17c18f9e | 1210 | atomic64_add(nbytes, &alg->stats.hash.hash_tlen); |
f7d76e05 CL |
1211 | crypto_alg_put(alg); |
1212 | } | |
1213 | EXPORT_SYMBOL_GPL(crypto_stats_ahash_update); | |
1214 | ||
1215 | void crypto_stats_ahash_final(unsigned int nbytes, int ret, | |
1216 | struct crypto_alg *alg) | |
1217 | { | |
1218 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1219 | atomic64_inc(&alg->stats.hash.err_cnt); |
f7d76e05 | 1220 | } else { |
17c18f9e CL |
1221 | atomic64_inc(&alg->stats.hash.hash_cnt); |
1222 | atomic64_add(nbytes, &alg->stats.hash.hash_tlen); | |
f7d76e05 CL |
1223 | } |
1224 | crypto_alg_put(alg); | |
1225 | } | |
1226 | EXPORT_SYMBOL_GPL(crypto_stats_ahash_final); | |
1227 | ||
1228 | void crypto_stats_kpp_set_secret(struct crypto_alg *alg, int ret) | |
1229 | { | |
1230 | if (ret) | |
44f13133 | 1231 | atomic64_inc(&alg->stats.kpp.err_cnt); |
f7d76e05 | 1232 | else |
17c18f9e | 1233 | atomic64_inc(&alg->stats.kpp.setsecret_cnt); |
f7d76e05 CL |
1234 | crypto_alg_put(alg); |
1235 | } | |
1236 | EXPORT_SYMBOL_GPL(crypto_stats_kpp_set_secret); | |
1237 | ||
1238 | void crypto_stats_kpp_generate_public_key(struct crypto_alg *alg, int ret) | |
1239 | { | |
1240 | if (ret) | |
44f13133 | 1241 | atomic64_inc(&alg->stats.kpp.err_cnt); |
f7d76e05 | 1242 | else |
17c18f9e | 1243 | atomic64_inc(&alg->stats.kpp.generate_public_key_cnt); |
f7d76e05 CL |
1244 | crypto_alg_put(alg); |
1245 | } | |
1246 | EXPORT_SYMBOL_GPL(crypto_stats_kpp_generate_public_key); | |
1247 | ||
1248 | void crypto_stats_kpp_compute_shared_secret(struct crypto_alg *alg, int ret) | |
1249 | { | |
1250 | if (ret) | |
44f13133 | 1251 | atomic64_inc(&alg->stats.kpp.err_cnt); |
f7d76e05 | 1252 | else |
17c18f9e | 1253 | atomic64_inc(&alg->stats.kpp.compute_shared_secret_cnt); |
f7d76e05 CL |
1254 | crypto_alg_put(alg); |
1255 | } | |
1256 | EXPORT_SYMBOL_GPL(crypto_stats_kpp_compute_shared_secret); | |
1257 | ||
1258 | void crypto_stats_rng_seed(struct crypto_alg *alg, int ret) | |
1259 | { | |
1260 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) | |
44f13133 | 1261 | atomic64_inc(&alg->stats.rng.err_cnt); |
f7d76e05 | 1262 | else |
17c18f9e | 1263 | atomic64_inc(&alg->stats.rng.seed_cnt); |
f7d76e05 CL |
1264 | crypto_alg_put(alg); |
1265 | } | |
1266 | EXPORT_SYMBOL_GPL(crypto_stats_rng_seed); | |
1267 | ||
1268 | void crypto_stats_rng_generate(struct crypto_alg *alg, unsigned int dlen, | |
1269 | int ret) | |
1270 | { | |
1271 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1272 | atomic64_inc(&alg->stats.rng.err_cnt); |
f7d76e05 | 1273 | } else { |
17c18f9e CL |
1274 | atomic64_inc(&alg->stats.rng.generate_cnt); |
1275 | atomic64_add(dlen, &alg->stats.rng.generate_tlen); | |
f7d76e05 CL |
1276 | } |
1277 | crypto_alg_put(alg); | |
1278 | } | |
1279 | EXPORT_SYMBOL_GPL(crypto_stats_rng_generate); | |
1280 | ||
1281 | void crypto_stats_skcipher_encrypt(unsigned int cryptlen, int ret, | |
1282 | struct crypto_alg *alg) | |
1283 | { | |
1284 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1285 | atomic64_inc(&alg->stats.cipher.err_cnt); |
f7d76e05 | 1286 | } else { |
17c18f9e CL |
1287 | atomic64_inc(&alg->stats.cipher.encrypt_cnt); |
1288 | atomic64_add(cryptlen, &alg->stats.cipher.encrypt_tlen); | |
f7d76e05 CL |
1289 | } |
1290 | crypto_alg_put(alg); | |
1291 | } | |
1292 | EXPORT_SYMBOL_GPL(crypto_stats_skcipher_encrypt); | |
1293 | ||
1294 | void crypto_stats_skcipher_decrypt(unsigned int cryptlen, int ret, | |
1295 | struct crypto_alg *alg) | |
1296 | { | |
1297 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) { | |
44f13133 | 1298 | atomic64_inc(&alg->stats.cipher.err_cnt); |
f7d76e05 | 1299 | } else { |
17c18f9e CL |
1300 | atomic64_inc(&alg->stats.cipher.decrypt_cnt); |
1301 | atomic64_add(cryptlen, &alg->stats.cipher.decrypt_tlen); | |
f7d76e05 CL |
1302 | } |
1303 | crypto_alg_put(alg); | |
1304 | } | |
1305 | EXPORT_SYMBOL_GPL(crypto_stats_skcipher_decrypt); | |
1306 | #endif | |
1307 | ||
cce9e06d HX |
1308 | static int __init crypto_algapi_init(void) |
1309 | { | |
1310 | crypto_init_proc(); | |
1311 | return 0; | |
1312 | } | |
1313 | ||
1314 | static void __exit crypto_algapi_exit(void) | |
1315 | { | |
1316 | crypto_exit_proc(); | |
1317 | } | |
1318 | ||
1319 | module_init(crypto_algapi_init); | |
1320 | module_exit(crypto_algapi_exit); | |
1321 | ||
1322 | MODULE_LICENSE("GPL"); | |
1323 | MODULE_DESCRIPTION("Cryptographic algorithms API"); |