linux/crypto/algapi.c
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   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
  13#include <linux/err.h>
  14#include <linux/errno.h>
  15#include <linux/init.h>
  16#include <linux/kernel.h>
  17#include <linux/list.h>
  18#include <linux/module.h>
  19#include <linux/rtnetlink.h>
  20#include <linux/slab.h>
  21#include <linux/string.h>
  22
  23#include "internal.h"
  24
  25static LIST_HEAD(crypto_template_list);
  26
  27static inline int crypto_set_driver_name(struct crypto_alg *alg)
  28{
  29        static const char suffix[] = "-generic";
  30        char *driver_name = alg->cra_driver_name;
  31        int len;
  32
  33        if (*driver_name)
  34                return 0;
  35
  36        len = strlcpy(driver_name, alg->cra_name, CRYPTO_MAX_ALG_NAME);
  37        if (len + sizeof(suffix) > CRYPTO_MAX_ALG_NAME)
  38                return -ENAMETOOLONG;
  39
  40        memcpy(driver_name + len, suffix, sizeof(suffix));
  41        return 0;
  42}
  43
  44static int crypto_check_alg(struct crypto_alg *alg)
  45{
  46        if (alg->cra_alignmask & (alg->cra_alignmask + 1))
  47                return -EINVAL;
  48
  49        if (alg->cra_blocksize > PAGE_SIZE / 8)
  50                return -EINVAL;
  51
  52        if (alg->cra_priority < 0)
  53                return -EINVAL;
  54
  55        return crypto_set_driver_name(alg);
  56}
  57
  58static void crypto_destroy_instance(struct crypto_alg *alg)
  59{
  60        struct crypto_instance *inst = (void *)alg;
  61        struct crypto_template *tmpl = inst->tmpl;
  62
  63        tmpl->free(inst);
  64        crypto_tmpl_put(tmpl);
  65}
  66
  67static struct list_head *crypto_more_spawns(struct crypto_alg *alg,
  68                                            struct list_head *stack,
  69                                            struct list_head *top,
  70                                            struct list_head *secondary_spawns)
  71{
  72        struct crypto_spawn *spawn, *n;
  73
  74        if (list_empty(stack))
  75                return NULL;
  76
  77        spawn = list_first_entry(stack, struct crypto_spawn, list);
  78        n = list_entry(spawn->list.next, struct crypto_spawn, list);
  79
  80        if (spawn->alg && &n->list != stack && !n->alg)
  81                n->alg = (n->list.next == stack) ? alg :
  82                         &list_entry(n->list.next, struct crypto_spawn,
  83                                     list)->inst->alg;
  84
  85        list_move(&spawn->list, secondary_spawns);
  86
  87        return &n->list == stack ? top : &n->inst->alg.cra_users;
  88}
  89
  90static void crypto_remove_spawn(struct crypto_spawn *spawn,
  91                                struct list_head *list)
  92{
  93        struct crypto_instance *inst = spawn->inst;
  94        struct crypto_template *tmpl = inst->tmpl;
  95
  96        if (crypto_is_dead(&inst->alg))
  97                return;
  98
  99        inst->alg.cra_flags |= CRYPTO_ALG_DEAD;
 100        if (hlist_unhashed(&inst->list))
 101                return;
 102
 103        if (!tmpl || !crypto_tmpl_get(tmpl))
 104                return;
 105
 106        crypto_notify(CRYPTO_MSG_ALG_UNREGISTER, &inst->alg);
 107        list_move(&inst->alg.cra_list, list);
 108        hlist_del(&inst->list);
 109        inst->alg.cra_destroy = crypto_destroy_instance;
 110
 111        BUG_ON(!list_empty(&inst->alg.cra_users));
 112}
 113
 114void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
 115                          struct crypto_alg *nalg)
 116{
 117        u32 new_type = (nalg ?: alg)->cra_flags;
 118        struct crypto_spawn *spawn, *n;
 119        LIST_HEAD(secondary_spawns);
 120        struct list_head *spawns;
 121        LIST_HEAD(stack);
 122        LIST_HEAD(top);
 123
 124        spawns = &alg->cra_users;
 125        list_for_each_entry_safe(spawn, n, spawns, list) {
 126                if ((spawn->alg->cra_flags ^ new_type) & spawn->mask)
 127                        continue;
 128
 129                list_move(&spawn->list, &top);
 130        }
 131
 132        spawns = &top;
 133        do {
 134                while (!list_empty(spawns)) {
 135                        struct crypto_instance *inst;
 136
 137                        spawn = list_first_entry(spawns, struct crypto_spawn,
 138                                                 list);
 139                        inst = spawn->inst;
 140
 141                        BUG_ON(&inst->alg == alg);
 142
 143                        list_move(&spawn->list, &stack);
 144
 145                        if (&inst->alg == nalg)
 146                                break;
 147
 148                        spawn->alg = NULL;
 149                        spawns = &inst->alg.cra_users;
 150                }
 151        } while ((spawns = crypto_more_spawns(alg, &stack, &top,
 152                                              &secondary_spawns)));
 153
 154        list_for_each_entry_safe(spawn, n, &secondary_spawns, list) {
 155                if (spawn->alg)
 156                        list_move(&spawn->list, &spawn->alg->cra_users);
 157                else
 158                        crypto_remove_spawn(spawn, list);
 159        }
 160}
 161EXPORT_SYMBOL_GPL(crypto_remove_spawns);
 162
 163static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg)
 164{
 165        struct crypto_alg *q;
 166        struct crypto_larval *larval;
 167        int ret = -EAGAIN;
 168
 169        if (crypto_is_dead(alg))
 170                goto err;
 171
 172        INIT_LIST_HEAD(&alg->cra_users);
 173
 174        /* No cheating! */
 175        alg->cra_flags &= ~CRYPTO_ALG_TESTED;
 176
 177        ret = -EEXIST;
 178
 179        atomic_set(&alg->cra_refcnt, 1);
 180        list_for_each_entry(q, &crypto_alg_list, cra_list) {
 181                if (q == alg)
 182                        goto err;
 183
 184                if (crypto_is_moribund(q))
 185                        continue;
 186
 187                if (crypto_is_larval(q)) {
 188                        if (!strcmp(alg->cra_driver_name, q->cra_driver_name))
 189                                goto err;
 190                        continue;
 191                }
 192
 193                if (!strcmp(q->cra_driver_name, alg->cra_name) ||
 194                    !strcmp(q->cra_name, alg->cra_driver_name))
 195                        goto err;
 196        }
 197
 198        larval = crypto_larval_alloc(alg->cra_name,
 199                                     alg->cra_flags | CRYPTO_ALG_TESTED, 0);
 200        if (IS_ERR(larval))
 201                goto out;
 202
 203        ret = -ENOENT;
 204        larval->adult = crypto_mod_get(alg);
 205        if (!larval->adult)
 206                goto free_larval;
 207
 208        atomic_set(&larval->alg.cra_refcnt, 1);
 209        memcpy(larval->alg.cra_driver_name, alg->cra_driver_name,
 210               CRYPTO_MAX_ALG_NAME);
 211        larval->alg.cra_priority = alg->cra_priority;
 212
 213        list_add(&alg->cra_list, &crypto_alg_list);
 214        list_add(&larval->alg.cra_list, &crypto_alg_list);
 215
 216out:
 217        return larval;
 218
 219free_larval:
 220        kfree(larval);
 221err:
 222        larval = ERR_PTR(ret);
 223        goto out;
 224}
 225
 226void crypto_alg_tested(const char *name, int err)
 227{
 228        struct crypto_larval *test;
 229        struct crypto_alg *alg;
 230        struct crypto_alg *q;
 231        LIST_HEAD(list);
 232
 233        down_write(&crypto_alg_sem);
 234        list_for_each_entry(q, &crypto_alg_list, cra_list) {
 235                if (crypto_is_moribund(q) || !crypto_is_larval(q))
 236                        continue;
 237
 238                test = (struct crypto_larval *)q;
 239
 240                if (!strcmp(q->cra_driver_name, name))
 241                        goto found;
 242        }
 243
 244        printk(KERN_ERR "alg: Unexpected test result for %s: %d\n", name, err);
 245        goto unlock;
 246
 247found:
 248        q->cra_flags |= CRYPTO_ALG_DEAD;
 249        alg = test->adult;
 250        if (err || list_empty(&alg->cra_list))
 251                goto complete;
 252
 253        alg->cra_flags |= CRYPTO_ALG_TESTED;
 254
 255        list_for_each_entry(q, &crypto_alg_list, cra_list) {
 256                if (q == alg)
 257                        continue;
 258
 259                if (crypto_is_moribund(q))
 260                        continue;
 261
 262                if (crypto_is_larval(q)) {
 263                        struct crypto_larval *larval = (void *)q;
 264
 265                        /*
 266                         * Check to see if either our generic name or
 267                         * specific name can satisfy the name requested
 268                         * by the larval entry q.
 269                         */
 270                        if (strcmp(alg->cra_name, q->cra_name) &&
 271                            strcmp(alg->cra_driver_name, q->cra_name))
 272                                continue;
 273
 274                        if (larval->adult)
 275                                continue;
 276                        if ((q->cra_flags ^ alg->cra_flags) & larval->mask)
 277                                continue;
 278                        if (!crypto_mod_get(alg))
 279                                continue;
 280
 281                        larval->adult = alg;
 282                        continue;
 283                }
 284
 285                if (strcmp(alg->cra_name, q->cra_name))
 286                        continue;
 287
 288                if (strcmp(alg->cra_driver_name, q->cra_driver_name) &&
 289                    q->cra_priority > alg->cra_priority)
 290                        continue;
 291
 292                crypto_remove_spawns(q, &list, alg);
 293        }
 294
 295complete:
 296        complete_all(&test->completion);
 297
 298unlock:
 299        up_write(&crypto_alg_sem);
 300
 301        crypto_remove_final(&list);
 302}
 303EXPORT_SYMBOL_GPL(crypto_alg_tested);
 304
 305void crypto_remove_final(struct list_head *list)
 306{
 307        struct crypto_alg *alg;
 308        struct crypto_alg *n;
 309
 310        list_for_each_entry_safe(alg, n, list, cra_list) {
 311                list_del_init(&alg->cra_list);
 312                crypto_alg_put(alg);
 313        }
 314}
 315EXPORT_SYMBOL_GPL(crypto_remove_final);
 316
 317static void crypto_wait_for_test(struct crypto_larval *larval)
 318{
 319        int err;
 320
 321        err = crypto_probing_notify(CRYPTO_MSG_ALG_REGISTER, larval->adult);
 322        if (err != NOTIFY_STOP) {
 323                if (WARN_ON(err != NOTIFY_DONE))
 324                        goto out;
 325                crypto_alg_tested(larval->alg.cra_driver_name, 0);
 326        }
 327
 328        err = wait_for_completion_interruptible(&larval->completion);
 329        WARN_ON(err);
 330
 331out:
 332        crypto_larval_kill(&larval->alg);
 333}
 334
 335int crypto_register_alg(struct crypto_alg *alg)
 336{
 337        struct crypto_larval *larval;
 338        int err;
 339
 340        err = crypto_check_alg(alg);
 341        if (err)
 342                return err;
 343
 344        down_write(&crypto_alg_sem);
 345        larval = __crypto_register_alg(alg);
 346        up_write(&crypto_alg_sem);
 347
 348        if (IS_ERR(larval))
 349                return PTR_ERR(larval);
 350
 351        crypto_wait_for_test(larval);
 352        return 0;
 353}
 354EXPORT_SYMBOL_GPL(crypto_register_alg);
 355
 356static int crypto_remove_alg(struct crypto_alg *alg, struct list_head *list)
 357{
 358        if (unlikely(list_empty(&alg->cra_list)))
 359                return -ENOENT;
 360
 361        alg->cra_flags |= CRYPTO_ALG_DEAD;
 362
 363        crypto_notify(CRYPTO_MSG_ALG_UNREGISTER, alg);
 364        list_del_init(&alg->cra_list);
 365        crypto_remove_spawns(alg, list, NULL);
 366
 367        return 0;
 368}
 369
 370int crypto_unregister_alg(struct crypto_alg *alg)
 371{
 372        int ret;
 373        LIST_HEAD(list);
 374
 375        down_write(&crypto_alg_sem);
 376        ret = crypto_remove_alg(alg, &list);
 377        up_write(&crypto_alg_sem);
 378
 379        if (ret)
 380                return ret;
 381
 382        BUG_ON(atomic_read(&alg->cra_refcnt) != 1);
 383        if (alg->cra_destroy)
 384                alg->cra_destroy(alg);
 385
 386        crypto_remove_final(&list);
 387        return 0;
 388}
 389EXPORT_SYMBOL_GPL(crypto_unregister_alg);
 390
 391int crypto_register_algs(struct crypto_alg *algs, int count)
 392{
 393        int i, ret;
 394
 395        for (i = 0; i < count; i++) {
 396                ret = crypto_register_alg(&algs[i]);
 397                if (ret)
 398                        goto err;
 399        }
 400
 401        return 0;
 402
 403err:
 404        for (--i; i >= 0; --i)
 405                crypto_unregister_alg(&algs[i]);
 406
 407        return ret;
 408}
 409EXPORT_SYMBOL_GPL(crypto_register_algs);
 410
 411int crypto_unregister_algs(struct crypto_alg *algs, int count)
 412{
 413        int i, ret;
 414
 415        for (i = 0; i < count; i++) {
 416                ret = crypto_unregister_alg(&algs[i]);
 417                if (ret)
 418                        pr_err("Failed to unregister %s %s: %d\n",
 419                               algs[i].cra_driver_name, algs[i].cra_name, ret);
 420        }
 421
 422        return 0;
 423}
 424EXPORT_SYMBOL_GPL(crypto_unregister_algs);
 425
 426int crypto_register_template(struct crypto_template *tmpl)
 427{
 428        struct crypto_template *q;
 429        int err = -EEXIST;
 430
 431        down_write(&crypto_alg_sem);
 432
 433        list_for_each_entry(q, &crypto_template_list, list) {
 434                if (q == tmpl)
 435                        goto out;
 436        }
 437
 438        list_add(&tmpl->list, &crypto_template_list);
 439        crypto_notify(CRYPTO_MSG_TMPL_REGISTER, tmpl);
 440        err = 0;
 441out:
 442        up_write(&crypto_alg_sem);
 443        return err;
 444}
 445EXPORT_SYMBOL_GPL(crypto_register_template);
 446
 447void crypto_unregister_template(struct crypto_template *tmpl)
 448{
 449        struct crypto_instance *inst;
 450        struct hlist_node *n;
 451        struct hlist_head *list;
 452        LIST_HEAD(users);
 453
 454        down_write(&crypto_alg_sem);
 455
 456        BUG_ON(list_empty(&tmpl->list));
 457        list_del_init(&tmpl->list);
 458
 459        list = &tmpl->instances;
 460        hlist_for_each_entry(inst, list, list) {
 461                int err = crypto_remove_alg(&inst->alg, &users);
 462                BUG_ON(err);
 463        }
 464
 465        crypto_notify(CRYPTO_MSG_TMPL_UNREGISTER, tmpl);
 466
 467        up_write(&crypto_alg_sem);
 468
 469        hlist_for_each_entry_safe(inst, n, list, list) {
 470                BUG_ON(atomic_read(&inst->alg.cra_refcnt) != 1);
 471                tmpl->free(inst);
 472        }
 473        crypto_remove_final(&users);
 474}
 475EXPORT_SYMBOL_GPL(crypto_unregister_template);
 476
 477static struct crypto_template *__crypto_lookup_template(const char *name)
 478{
 479        struct crypto_template *q, *tmpl = NULL;
 480
 481        down_read(&crypto_alg_sem);
 482        list_for_each_entry(q, &crypto_template_list, list) {
 483                if (strcmp(q->name, name))
 484                        continue;
 485                if (unlikely(!crypto_tmpl_get(q)))
 486                        continue;
 487
 488                tmpl = q;
 489                break;
 490        }
 491        up_read(&crypto_alg_sem);
 492
 493        return tmpl;
 494}
 495
 496struct crypto_template *crypto_lookup_template(const char *name)
 497{
 498        return try_then_request_module(__crypto_lookup_template(name), name);
 499}
 500EXPORT_SYMBOL_GPL(crypto_lookup_template);
 501
 502int crypto_register_instance(struct crypto_template *tmpl,
 503                             struct crypto_instance *inst)
 504{
 505        struct crypto_larval *larval;
 506        int err;
 507
 508        err = crypto_check_alg(&inst->alg);
 509        if (err)
 510                goto err;
 511
 512        inst->alg.cra_module = tmpl->module;
 513        inst->alg.cra_flags |= CRYPTO_ALG_INSTANCE;
 514
 515        down_write(&crypto_alg_sem);
 516
 517        larval = __crypto_register_alg(&inst->alg);
 518        if (IS_ERR(larval))
 519                goto unlock;
 520
 521        hlist_add_head(&inst->list, &tmpl->instances);
 522        inst->tmpl = tmpl;
 523
 524unlock:
 525        up_write(&crypto_alg_sem);
 526
 527        err = PTR_ERR(larval);
 528        if (IS_ERR(larval))
 529                goto err;
 530
 531        crypto_wait_for_test(larval);
 532        err = 0;
 533
 534err:
 535        return err;
 536}
 537EXPORT_SYMBOL_GPL(crypto_register_instance);
 538
 539int crypto_unregister_instance(struct crypto_alg *alg)
 540{
 541        int err;
 542        struct crypto_instance *inst = (void *)alg;
 543        struct crypto_template *tmpl = inst->tmpl;
 544        LIST_HEAD(users);
 545
 546        if (!(alg->cra_flags & CRYPTO_ALG_INSTANCE))
 547                return -EINVAL;
 548
 549        BUG_ON(atomic_read(&alg->cra_refcnt) != 1);
 550
 551        down_write(&crypto_alg_sem);
 552
 553        hlist_del_init(&inst->list);
 554        err = crypto_remove_alg(alg, &users);
 555
 556        up_write(&crypto_alg_sem);
 557
 558        if (err)
 559                return err;
 560
 561        tmpl->free(inst);
 562        crypto_remove_final(&users);
 563
 564        return 0;
 565}
 566EXPORT_SYMBOL_GPL(crypto_unregister_instance);
 567
 568int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
 569                      struct crypto_instance *inst, u32 mask)
 570{
 571        int err = -EAGAIN;
 572
 573        spawn->inst = inst;
 574        spawn->mask = mask;
 575
 576        down_write(&crypto_alg_sem);
 577        if (!crypto_is_moribund(alg)) {
 578                list_add(&spawn->list, &alg->cra_users);
 579                spawn->alg = alg;
 580                err = 0;
 581        }
 582        up_write(&crypto_alg_sem);
 583
 584        return err;
 585}
 586EXPORT_SYMBOL_GPL(crypto_init_spawn);
 587
 588int crypto_init_spawn2(struct crypto_spawn *spawn, struct crypto_alg *alg,
 589                       struct crypto_instance *inst,
 590                       const struct crypto_type *frontend)
 591{
 592        int err = -EINVAL;
 593
 594        if ((alg->cra_flags ^ frontend->type) & frontend->maskset)
 595                goto out;
 596
 597        spawn->frontend = frontend;
 598        err = crypto_init_spawn(spawn, alg, inst, frontend->maskset);
 599
 600out:
 601        return err;
 602}
 603EXPORT_SYMBOL_GPL(crypto_init_spawn2);
 604
 605void crypto_drop_spawn(struct crypto_spawn *spawn)
 606{
 607        if (!spawn->alg)
 608                return;
 609
 610        down_write(&crypto_alg_sem);
 611        list_del(&spawn->list);
 612        up_write(&crypto_alg_sem);
 613}
 614EXPORT_SYMBOL_GPL(crypto_drop_spawn);
 615
 616static struct crypto_alg *crypto_spawn_alg(struct crypto_spawn *spawn)
 617{
 618        struct crypto_alg *alg;
 619        struct crypto_alg *alg2;
 620
 621        down_read(&crypto_alg_sem);
 622        alg = spawn->alg;
 623        alg2 = alg;
 624        if (alg2)
 625                alg2 = crypto_mod_get(alg2);
 626        up_read(&crypto_alg_sem);
 627
 628        if (!alg2) {
 629                if (alg)
 630                        crypto_shoot_alg(alg);
 631                return ERR_PTR(-EAGAIN);
 632        }
 633
 634        return alg;
 635}
 636
 637struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
 638                                    u32 mask)
 639{
 640        struct crypto_alg *alg;
 641        struct crypto_tfm *tfm;
 642
 643        alg = crypto_spawn_alg(spawn);
 644        if (IS_ERR(alg))
 645                return ERR_CAST(alg);
 646
 647        tfm = ERR_PTR(-EINVAL);
 648        if (unlikely((alg->cra_flags ^ type) & mask))
 649                goto out_put_alg;
 650
 651        tfm = __crypto_alloc_tfm(alg, type, mask);
 652        if (IS_ERR(tfm))
 653                goto out_put_alg;
 654
 655        return tfm;
 656
 657out_put_alg:
 658        crypto_mod_put(alg);
 659        return tfm;
 660}
 661EXPORT_SYMBOL_GPL(crypto_spawn_tfm);
 662
 663void *crypto_spawn_tfm2(struct crypto_spawn *spawn)
 664{
 665        struct crypto_alg *alg;
 666        struct crypto_tfm *tfm;
 667
 668        alg = crypto_spawn_alg(spawn);
 669        if (IS_ERR(alg))
 670                return ERR_CAST(alg);
 671
 672        tfm = crypto_create_tfm(alg, spawn->frontend);
 673        if (IS_ERR(tfm))
 674                goto out_put_alg;
 675
 676        return tfm;
 677
 678out_put_alg:
 679        crypto_mod_put(alg);
 680        return tfm;
 681}
 682EXPORT_SYMBOL_GPL(crypto_spawn_tfm2);
 683
 684int crypto_register_notifier(struct notifier_block *nb)
 685{
 686        return blocking_notifier_chain_register(&crypto_chain, nb);
 687}
 688EXPORT_SYMBOL_GPL(crypto_register_notifier);
 689
 690int crypto_unregister_notifier(struct notifier_block *nb)
 691{
 692        return blocking_notifier_chain_unregister(&crypto_chain, nb);
 693}
 694EXPORT_SYMBOL_GPL(crypto_unregister_notifier);
 695
 696struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb)
 697{
 698        struct rtattr *rta = tb[0];
 699        struct crypto_attr_type *algt;
 700
 701        if (!rta)
 702                return ERR_PTR(-ENOENT);
 703        if (RTA_PAYLOAD(rta) < sizeof(*algt))
 704                return ERR_PTR(-EINVAL);
 705        if (rta->rta_type != CRYPTOA_TYPE)
 706                return ERR_PTR(-EINVAL);
 707
 708        algt = RTA_DATA(rta);
 709
 710        return algt;
 711}
 712EXPORT_SYMBOL_GPL(crypto_get_attr_type);
 713
 714int crypto_check_attr_type(struct rtattr **tb, u32 type)
 715{
 716        struct crypto_attr_type *algt;
 717
 718        algt = crypto_get_attr_type(tb);
 719        if (IS_ERR(algt))
 720                return PTR_ERR(algt);
 721
 722        if ((algt->type ^ type) & algt->mask)
 723                return -EINVAL;
 724
 725        return 0;
 726}
 727EXPORT_SYMBOL_GPL(crypto_check_attr_type);
 728
 729const char *crypto_attr_alg_name(struct rtattr *rta)
 730{
 731        struct crypto_attr_alg *alga;
 732
 733        if (!rta)
 734                return ERR_PTR(-ENOENT);
 735        if (RTA_PAYLOAD(rta) < sizeof(*alga))
 736                return ERR_PTR(-EINVAL);
 737        if (rta->rta_type != CRYPTOA_ALG)
 738                return ERR_PTR(-EINVAL);
 739
 740        algaid="L709" class="line" name="L709"> 709
 710      41" id="L7class="line" name="L641"7me="LA_ALG23"> 603'38" i>id="L709" class= class="s= users);
]YPTO_NAM_TYPE" class="sref">CR);
]YPTO_NAM_LA_AL- 1] = 0;
 642
 643        return '38" i>id="L709" class= class="s=  = 0;
 644}
 645EXPORT_SYMBOL_GPL(crypto_attr_alg_name="line" name="L710"> 710   #L736" id="L646" class="line" nam7="L647"> 646
crypto_alg *crypto_attr_name(struct rtattr *rta,
crypto_type *frontend,
 649                                a>, u32 type, u32 mask)
 651    const char * = crypto_attr_alg_name 710  c#L654" i7="L654" class="line" nam7="L6575> 644        if (IS_ERR())
 655                return ERR_CAST( 710  c#L736" id="L656" class="line" nam7="L657"> 656
cryfindyttr_alg" class="sref">cryfindyttrCAST(, frontend, type, mask);
 658}
 659EXPORT_SYMBOL_GPL(crypto_attr_name);
 661int rtattr *rta, u32 662{
rta)
ENOENT/a>);
RTA_PAYLOAD(rta) < sizeof(*EINVAL;
 669        if (rta->rta_type !=  670                return -EINVAL;
 671
 672         709
 710  c#L673" i7="L673" class="line" nam7="L677"> 673    har *'38" i>iue=tfm" class="sriuemask"line" name="L710"> 710  c#L654" i7="L674" class="line" nam7="L6777> 724
EXPORT_SYMBOL_GPL( 710  c#L668" i7="L678" class="line" nam7="L6777> 728
 679void *, struct crypto_alg *alg,
crypto_instance *inst"line" name="L710"> 710  c#L683" i7="L683" class="line" nam7="L6878> 673    nst char * 710  c#L654" i7="L684" class="line" nam7="L6878> 644        int err"line" name="L710"> 710  c#L675" i7="L685" class="line" nam7="L6878> 695
inst) +< siz/a>(struct crypto_spawn),
 710  c#L688" i7="L688" class="line" nam7="L6878> 628        if (!ERR_PTR(- 710  c#L690" i7="L690" class="line" nam7="L6979> 700
 603instvo)( 710  c#L682" i7="L692" class="line" nam7="L6979> 642
err(- 710  c#L694" i7="L694" class="line" nam7="L6979> 644        if (inst->alg.uct CR);
]YPTO_NAM_LA_A"%s(%s)",  710  c#L675" i7="L695" class="line" nam7="L6979> 655            >        alg->-a> != CR);
]YPTO_NAM_LA_A)
err"line" name="L710"> 710  c#L677" i7="L697" class="line" nam7="L6979> 717
inst->alg.uct CR);
]YPTO_NAM_LA_A"%s(%s)"
, alg->-a> != CR);
]YPTO_NAM_LA_A)
err"line" name="L710"> 710 8c#L701" i8="L701" class="line" nam8="L7080> 671
 702        return  710 8c#L703" i8="L703" class="line" nam8="L7080> 713
err:
 705    >id="L709" claskfreeinst" class="srkfree_GPL( 710 8c6L705" i8="L696" class="line" nam8="L7080> 686        return ERR_PTR<    err<"line" name="L710"> 710 8c7L705" i8="L697" class="line" nam8="L7080> 687}
EXPORT_SYMBOL_GPL( 710 8c9L708" i8="L699" class="line" nam8="L708"> 709
 710    struct crypto_instance *
crypto_alg *alg)
crypto_instance *inst"line" name="L710"> 710 8c#L714" i8="L714" class="line" nam8="L71814 643        struct crypto_spawn *spawn"line" name="L710"> 710 8c#L705" i8="L715" class="line" nam8="L7181> 735        int err"line" name="L710"> 710 8c#L716" i8="L716" class="line" nam8="L7181> 656
inst, alg, 0<"line" name="L710"> 710 8c#L718" i8="L718" class="line" nam8="L7181> 648        if (IS_ERR(inst))
 710 8c#L720" i8="L720" class="line" nam8="L7282> 700
 603spawncrypto_inst_ctx_ERR(inst)"line" name="L710"> 710 8c#L712" i8="L722" class="line" nam8="L7282> 672        errcryptitypto_s_ERR(spawn, alg, /a>(inst<
 723                             != CR)PTO_TOA_);
SK 723<|  != CR)PTO_ASYNCinst)"line" name="L710"> 710 8c#L714" i8="L724" class="line" nam8="L728"> 724
err<
err"line" name="L710"> 710 8c#L727" i8="L727" class="line" nam8="L7282> 717
inst"line" name="L710"> 710 8c#L729" i8="L729" class="line" nam8="L7282> 709
 730err:
 603inst)"line" name="L710"> 710 8c#L732" i8="L732" class="line" nam8="L7383> 672        instERR_PTR<    err<"line" name="L710"> 710 8c#L733" i8="L733" class="line" nam8="L7383> 713
inst"line" name="L710"> 710 8c#L736" i8="L736" class="line" nam8="L7383> 726}
EXPORT_SYMBOL_GPL( 710 8c#L728" i8="L738" class="line" nam8="L7383> 728
cryptityqueut_GPL<    struct cryqueut_GPL * 603 710 8c#L642" i8="L642" class="line" nam8="L6484> 672         710 8c#L733" i8="L643" class="line" nam8="L6484> 643         645}
 646EXPORT_SYMBOL_GPL(cryptityqueut_GPL<"line" name="L710"> 710 8c#L737" i8="L647" class="line" nam8="L6484> 717
cryqueut_GPL * 649                       a>, struct  651        int err(-err(- 655                ief="crypto/algapiequee=inst" class="srrequee=_GPL->CR)TFM_REQ_MAY_BACKLOA_ALG" class="sref">CR)TFM_REQ_MAY_BACKLOAinst))
 710 8c#L657" i8="L657" class="line" nam8="L65857 630                if ( 710 8c#L659" i8="L659" class="line" nam8="L6585> 649    }
 603 710 8c#L662" i8="L662" class="line" nam8="L6686> 672         710 8c#L653" i8="L663" class="line" nam8="L6686> 713
err"line" name="L710"> 710 8c#L666" i8="L666" class="line" nam8="L6686> 726}
EXPORT_SYMBOL_GPL( 710 8c#L648" i8="L668" class="line" nam8="L6686> 728
cryqueut_GPL * 710 8c#L672" i8="L672" class="line" nam8="L6787> 642
 710 8c#L665" i8="L675" class="line" nam8="L6787> 695
 710 8c#L657" i8="L677" class="line" nam8="L6787> 717
'38" i>iex=inst" class="sriex=_GPL"line" name="L710"> 710 8c#L680" i8="L680" class="line" nam8="L6888> 700
 603 710 8c#L672" i8="L682" class="line" nam8="L6888> 672         710 8c#L673" i8="L683" class="line" nam8="L6888> 713
 710 8c#L676" i8="L686" class="line" nam8="L6888> 726}
EXPORT_SYMBOL_GPL( 710 8c#L668" i8="L688" class="line" nam8="L6888> 728
cryqueut_GPL * 6    return  710 8c#L682" i8="L692" class="line" nam8="L6989> 642}
EXPORT_SYMBOL_GPL( 710 8c#L654" i8="L694" class="line" nam8="L6989> 724
crytfm_inyqueut_GPL<    struct cryqueut_GPL * 710 8c#L698" i8="L698" class="line" nam8="L6989> 728
 710 9c#L702" i9="L702" class="line" nam9="L709"> 702    }
EXPORT_SYMBOL_GPL(crytfm_inyqueut_GPL<"line" name="L710"> 710 9c7L705" i9="L697" class="line" nam9="L7090> 717
vid *cryptc_bytt_GPL( 709{
 710 9c#L701" i9="L711" class="line" nam9="L7191"LA_ALG23"> 603 710 9c#L712" i9="L712" class="line" nam9="L7191> 642
 710 9c#L705" i9="L715" class="line" nam9="L7191> 655            * 710 9c6L705" i9="L716" class="line" nam9="L7191> 736                if ( 710 9c#L708" i9="L718" class="line" nam9="L7191> 648    }
vid *cryptc_GPL( 710 9c#L714" i9="L724" class="line" nam9="L72924 643        u32  710 9c#L725" i9="L725" class="line" nam9="L7292> 695
 710 9c#L728" i9="L728" class="line" nam9="L7292> 638            /a> * 710 9c9L708" i9="L729" class="line" nam9="L7292> 649                if ( 710 9c#L731" i9="L731" class="line" nam9="L7393"LA_ALG23"> 6}
cryptc_bytt_GPL( 710 9c#L734" i9="L734" class="line" nam9="L7393> 644}
EXPORT_SYMBOL_GPL(cryptc_GPL<"line" name="L710"> 710 9c#L716" i9="L736" class="line" nam9="L7393> 656
vid *cryxor_bytt_GPL( 710 9    41" i9="L7class="line" name="L941"7m9="LA_A}
cryxor_GPL(u32u32 710 9 #L716" i9="L646" class="line" nam9="L6494> 626        u32u32 710 9 #L737" i9="L647" class="line" nam9="L6494> 717
 649            /a> * * 710 9c#L650" i9="L650" class="line" nam9="L6595> 700
 603cryxor_bytt_GPL<( 710 9c#L652" i9="L652" class="line" nam9="L6595> 642}
EXPORT_SYMBOL_GPL(cryxor_GPL<"line" name="L710"> 710 9c#L734" i9="L654" class="line" nam9="L6595> 724
 655statict    int cryptit_pr_ainst" class="sref">cryptit_pr_a_GPL<<"line" name="L710"> 710 9c#L648" i9="L658" class="line" nam9="L6595> 648        ret> = 0;
vid *cryexit_pr_a_GPL<<"line" name="L710"> 710 9c#L654" i9="L664" class="line" nam9="L6696> 644}
 710 9c#L657" i9="L667" class="line" nam9="L6696> 727 710 9c#L648" i9="L668" class="line" nam9="L6696> 728
"BOL" 710 9c#L670" i9="L670" class="line" nam9="L6797> 730"C"L710graphict> 7orithms API" 710 9c#L661" i9="L671" class="line" nam9="L6797> 731


The original LXR software by the ine" namehttp://sourceforge.net/projects/lxr">LXR commutity_GPL, this experimental version by ine" namemailto:lxr@ss=ux.no">lxr@ss=ux.no_GPL.
lxr.ss=ux.no kindly hosted by ine" namehttp://www.redpill-ss=pro.no">Redpill Ls=pro AS_GPL, provider of Ls=ux ult g and operati/a> service> since 1995.