examples/fips_validation/fips_validation.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <string.h>
   7
   8 #include <rte_string_fns.h>
   9 #include <rte_cryptodev.h>
  10 #include <rte_malloc.h>
  11
  12 #include "fips_validation.h"
  13
  14 #define skip_white_spaces(pos)                  \
  15 ({                                              \
  16         __typeof__(pos) _p = (pos);             \
  17         for ( ; isspace(*_p); _p++)             \
  18                 ;                               \
  19         _p;                                     \
  20 })
  21
  22 static int
  23 get_file_line(void)
  24 {
  25         FILE *fp = info.fp_rd;
  26         char *line = info.one_line_text;
  27         int ret;
  28         uint32_t loc = 0;
  29
  30         memset(line, 0, MAX_LINE_CHAR);
  31         while ((ret = fgetc(fp)) != EOF) {
  32                 char c = (char)ret;
  33
  34                 if (loc >= MAX_LINE_CHAR - 1)
  35                         return -ENOMEM;
  36                 if (c == '\n')
  37                         break;
  38                 line[loc++] = c;
  39         }
  40
  41         if (ret == EOF)
  42                 return -EOF;
  43
  44         return 0;
  45 }
  46
  47 int
  48 fips_test_fetch_one_block(void)
  49 {
  50         size_t size;
  51         int ret = 0;
  52         uint32_t i;
  53
  54         for (i = 0; i < info.nb_vec_lines; i++) {
  55                 free(info.vec[i]);
  56                 info.vec[i] = NULL;
  57         }
  58
  59         i = 0;
  60         do {
  61                 if (i >= MAX_LINE_PER_VECTOR) {
  62                         ret = -ENOMEM;
  63                         goto error_exit;
  64                 }
  65
  66                 ret = get_file_line();
  67                 size = strlen(info.one_line_text);
  68                 if (size == 0)
  69                         break;
  70
  71                 info.vec[i] = calloc(1, size + 5);
  72                 if (info.vec[i] == NULL)
  73                         goto error_exit;
  74
  75                 strlcpy(info.vec[i], info.one_line_text, size + 1);
  76                 i++;
  77         } while (ret == 0);
  78
  79         info.nb_vec_lines = i;
  80
  81         return ret;
  82
  83 error_exit:
  84         for (i = 0; i < MAX_LINE_PER_VECTOR; i++)
  85                 if (info.vec[i] != NULL) {
  86                         free(info.vec[i]);
  87                         info.vec[i] = NULL;
  88                 }
  89
  90         info.nb_vec_lines = 0;
  91
  92         return -ENOMEM;
  93 }
  94
  95 static void
  96 fips_test_parse_version(void)
  97 {
  98         int len = strlen(info.vec[0]);
  99         char *ptr = info.vec[0];
 100
 101         info.version = strtof(ptr + len - 4, NULL);
 102 }
 103
 104 static int
 105 fips_test_parse_header(void)
 106 {
 107         uint32_t i;
 108         char *tmp;
 109         int ret;
 110         int algo_parsed = 0;
 111         time_t t = time(NULL);
 112         struct tm *tm_now = localtime(&t);
 113
 114         ret = fips_test_fetch_one_block();
 115         if (ret < 0)
 116                 return ret;
 117
 118         if (info.nb_vec_lines)
 119                 fips_test_parse_version();
 120
 121         for (i = 0; i < info.nb_vec_lines; i++) {
 122                 if (!algo_parsed) {
 123                         if (strstr(info.vec[i], "AESVS")) {
 124                                 algo_parsed = 1;
 125                                 info.algo = FIPS_TEST_ALGO_AES;
 126                                 ret = parse_test_aes_init();
 127                                 if (ret < 0)
 128                                         return ret;
 129                         } else if (strstr(info.vec[i], "GCM")) {
 130                                 algo_parsed = 1;
 131                                 info.algo = FIPS_TEST_ALGO_AES_GCM;
 132                                 ret = parse_test_gcm_init();
 133                                 if (ret < 0)
 134                                         return ret;
 135                         } else if (strstr(info.vec[i], "CMAC")) {
 136                                 algo_parsed = 1;
 137                                 info.algo = FIPS_TEST_ALGO_AES_CMAC;
 138                                 ret = parse_test_cmac_init();
 139                                 if (ret < 0)
 140                                         return 0;
 141                         } else if (strstr(info.vec[i], "CCM")) {
 142                                 algo_parsed = 1;
 143                                 info.algo = FIPS_TEST_ALGO_AES_CCM;
 144                                 ret = parse_test_ccm_init();
 145                                 if (ret < 0)
 146                                         return 0;
 147                         } else if (strstr(info.vec[i], "HMAC")) {
 148                                 algo_parsed = 1;
 149                                 info.algo = FIPS_TEST_ALGO_HMAC;
 150                                 ret = parse_test_hmac_init();
 151                                 if (ret < 0)
 152                                         return ret;
 153                         } else if (strstr(info.vec[i], "TDES")) {
 154                                 algo_parsed = 1;
 155                                 info.algo = FIPS_TEST_ALGO_TDES;
 156                                 ret = parse_test_tdes_init();
 157                                 if (ret < 0)
 158                                         return 0;
 159                         } else if (strstr(info.vec[i], "PERMUTATION")) {
 160                                 algo_parsed = 1;
 161                                 info.algo = FIPS_TEST_ALGO_TDES;
 162                                 ret = parse_test_tdes_init();
 163                                 if (ret < 0)
 164                                         return 0;
 165                         } else if (strstr(info.vec[i], "VARIABLE")) {
 166                                 algo_parsed = 1;
 167                                 info.algo = FIPS_TEST_ALGO_TDES;
 168                                 ret = parse_test_tdes_init();
 169                                 if (ret < 0)
 170                                         return 0;
 171                         } else if (strstr(info.vec[i], "SUBSTITUTION")) {
 172                                 algo_parsed = 1;
 173                                 info.algo = FIPS_TEST_ALGO_TDES;
 174                                 ret = parse_test_tdes_init();
 175                                 if (ret < 0)
 176                                         return 0;
 177                         } else if (strstr(info.vec[i], "SHA-")) {
 178                                 algo_parsed = 1;
 179                                 info.algo = FIPS_TEST_ALGO_SHA;
 180                                 ret = parse_test_sha_init();
 181                                 if (ret < 0)
 182                                         return ret;
 183                         } else if (strstr(info.vec[i], "XTS")) {
 184                                 algo_parsed = 1;
 185                                 info.algo = FIPS_TEST_ALGO_AES_XTS;
 186                                 ret = parse_test_xts_init();
 187                                 if (ret < 0)
 188                                         return ret;
 189                         }
 190                 }
 191
 192                 tmp = strstr(info.vec[i], "# Config info for ");
 193                 if (tmp != NULL) {
 194                         fprintf(info.fp_wr, "%s%s\n", "# Config info for DPDK Cryptodev ",
 195                                         info.device_name);
 196                         continue;
 197                 }
 198
 199                 tmp = strstr(info.vec[i], "#  HMAC information for ");
 200                 if (tmp != NULL) {
 201                         fprintf(info.fp_wr, "%s%s\n", "#  HMAC information for "
 202                                 "DPDK Cryptodev ",
 203                                 info.device_name);
 204                         continue;
 205                 }
 206
 207                 tmp = strstr(info.vec[i], "# Config Info for : ");
 208                 if (tmp != NULL) {
 209
 210                         fprintf(info.fp_wr, "%s%s\n", "# Config Info for DPDK Cryptodev : ",
 211                                         info.device_name);
 212                         continue;
 213                 }
 214
 215                 tmp = strstr(info.vec[i], "# information for ");
 216                 if (tmp != NULL) {
 217
 218                         char tmp_output[128] = {0};
 219
 220                         strlcpy(tmp_output, info.vec[i], tmp - info.vec[i] + 1);
 221
 222                         fprintf(info.fp_wr, "%s%s%s\n", tmp_output,
 223                                         "information for DPDK Cryptodev ",
 224                                         info.device_name);
 225                         continue;
 226                 }
 227
 228                 tmp = strstr(info.vec[i], " test information for ");
 229                 if (tmp != NULL) {
 230                         char tmp_output[128] = {0};
 231
 232                         strlcpy(tmp_output, info.vec[i], tmp - info.vec[i] + 1);
 233
 234                         fprintf(info.fp_wr, "%s%s%s\n", tmp_output,
 235                                         "test information for DPDK Cryptodev ",
 236                                         info.device_name);
 237                         continue;
 238                 }
 239
 240                 tmp = strstr(info.vec[i], "\" information for \"");
 241                 if (tmp != NULL) {
 242                         char tmp_output[128] = {0};
 243
 244                         strlcpy(tmp_output, info.vec[i], tmp - info.vec[i] + 1);
 245
 246                         fprintf(info.fp_wr, "%s%s%s\n", tmp_output,
 247                                         "\" information for DPDK Cryptodev ",
 248                                         info.device_name);
 249                         continue;
 250                 }
 251
 252                 if (i == info.nb_vec_lines - 1) {
 253                         /** update the time as current time, write to file */
 254                         fprintf(info.fp_wr, "%s%s\n", "# Generated on ",
 255                                         asctime(tm_now));
 256                         continue;
 257                 }
 258
 259                 /* to this point, no field need to update,
 260                  *  only copy to rsp file
 261                  */
 262                 fprintf(info.fp_wr, "%s\n", info.vec[i]);
 263         }
 264
 265         return 0;
 266 }
 267
 268 static int
 269 parse_file_type(const char *path)
 270 {
 271         const char *tmp = path + strlen(path) - 3;
 272
 273         if (strstr(tmp, REQ_FILE_PREFIX))
 274                 info.file_type = FIPS_TYPE_REQ;
 275         else if (strstr(tmp, RSP_FILE_PREFIX))
 276                 info.file_type = FIPS_TYPE_RSP;
 277         else if (strstr(path, FAX_FILE_PREFIX))
 278                 info.file_type = FIPS_TYPE_FAX;
 279         else if (strstr(path, JSON_FILE_PREFIX))
 280                 info.file_type = FIPS_TYPE_JSON;
 281         else
 282                 return -EINVAL;
 283
 284         return 0;
 285 }
 286
 287 int
 288 fips_test_init(const char *req_file_path, const char *rsp_file_path,
 289                 const char *device_name)
 290 {
 291         if (strcmp(req_file_path, rsp_file_path) == 0) {
 292                 RTE_LOG(ERR, USER1, "File paths cannot be the same\n");
 293                 return -EINVAL;
 294         }
 295
 296         fips_test_clear();
 297
 298         if (rte_strscpy(info.file_name, req_file_path,
 299                                 sizeof(info.file_name)) < 0) {
 300                 RTE_LOG(ERR, USER1, "Path %s too long\n", req_file_path);
 301                 return -EINVAL;
 302         }
 303         info.algo = FIPS_TEST_ALGO_MAX;
 304         if (parse_file_type(req_file_path) < 0) {
 305                 RTE_LOG(ERR, USER1, "File %s type not supported\n",
 306                                 req_file_path);
 307                 return -EINVAL;
 308         }
 309
 310         info.fp_rd = fopen(req_file_path, "r");
 311         if (!info.fp_rd) {
 312                 RTE_LOG(ERR, USER1, "Cannot open file %s\n", req_file_path);
 313                 return -EINVAL;
 314         }
 315
 316         if (info.file_type == FIPS_TYPE_JSON) {
 317 #ifdef RTE_HAS_JANSSON
 318                 json_error_t error;
 319                 json_info.json_root = json_loadf(info.fp_rd, 0, &error);
 320                 if (!json_info.json_root) {
 321                         RTE_LOG(ERR, USER1, "Cannot parse json file %s (line %d, column %d)\n",
 322                                 req_file_path, error.line, error.column);
 323                         return -EINVAL;
 324                 }
 325 #else /* RTE_HAS_JANSSON */
 326                 RTE_LOG(ERR, USER1, "No json library configured.\n");
 327                 return -EINVAL;
 328 #endif /* RTE_HAS_JANSSON */
 329         }
 330
 331         info.fp_wr = fopen(rsp_file_path, "w");
 332         if (!info.fp_wr) {
 333                 RTE_LOG(ERR, USER1, "Cannot open file %s\n", rsp_file_path);
 334                 return -EINVAL;
 335         }
 336
 337         info.one_line_text = calloc(1, MAX_LINE_CHAR);
 338         if (!info.one_line_text) {
 339                 RTE_LOG(ERR, USER1, "Insufficient memory\n");
 340                 return -ENOMEM;
 341         }
 342
 343         if (rte_strscpy(info.device_name, device_name,
 344                                 sizeof(info.device_name)) < 0) {
 345                 RTE_LOG(ERR, USER1, "Device name %s too long\n", device_name);
 346                 return -EINVAL;
 347         }
 348
 349         if (info.file_type == FIPS_TYPE_JSON)
 350                 return 0;
 351
 352         if (fips_test_parse_header() < 0) {
 353                 RTE_LOG(ERR, USER1, "Failed parsing header\n");
 354                 return -1;
 355         }
 356
 357         return 0;
 358 }
 359
 360 void
 361 fips_test_clear(void)
 362 {
 363         if (info.fp_rd)
 364                 fclose(info.fp_rd);
 365         if (info.fp_wr)
 366                 fclose(info.fp_wr);
 367         free(info.one_line_text);
 368         if (info.nb_vec_lines) {
 369                 uint32_t i;
 370
 371                 for (i = 0; i < info.nb_vec_lines; i++)
 372                         free(info.vec[i]);
 373         }
 374
 375         memset(&info, 0, sizeof(info));
 376 }
 377
 378 int
 379 fips_test_parse_one_case(void)
 380 {
 381         uint32_t i, j = 0;
 382         uint32_t is_interim;
 383         uint32_t interim_cnt = 0;
 384         int ret;
 385
 386         info.vec_start_off = 0;
 387
 388         if (info.interim_callbacks) {
 389                 for (i = 0; i < info.nb_vec_lines; i++) {
 390                         is_interim = 0;
 391                         for (j = 0; info.interim_callbacks[j].key != NULL; j++)
 392                                 if (strstr(info.vec[i],
 393                                         info.interim_callbacks[j].key)) {
 394                                         is_interim = 1;
 395
 396                                         ret = info.interim_callbacks[j].cb(
 397                                                 info.interim_callbacks[j].key,
 398                                                 info.vec[i],
 399                                                 info.interim_callbacks[j].val);
 400                                         if (ret < 0)
 401                                                 return ret;
 402                                 }
 403
 404                         if (is_interim)
 405                                 interim_cnt += 1;
 406                 }
 407         }
 408
 409         if (interim_cnt) {
 410                 if (info.version == 21.4f) {
 411                         for (i = 0; i < interim_cnt; i++)
 412                                 fprintf(info.fp_wr, "%s\n", info.vec[i]);
 413                         fprintf(info.fp_wr, "\n");
 414
 415                         if (info.nb_vec_lines == interim_cnt)
 416                                 return 1;
 417                 } else {
 418                         for (i = 0; i < info.nb_vec_lines; i++)
 419                                 fprintf(info.fp_wr, "%s\n", info.vec[i]);
 420                         fprintf(info.fp_wr, "\n");
 421                         return 1;
 422                 }
 423         }
 424
 425         info.vec_start_off = interim_cnt;
 426
 427         for (i = info.vec_start_off; i < info.nb_vec_lines; i++) {
 428                 for (j = 0; info.callbacks[j].key != NULL; j++)
 429                         if (strstr(info.vec[i], info.callbacks[j].key)) {
 430                                 ret = info.callbacks[j].cb(
 431                                         info.callbacks[j].key,
 432                                         info.vec[i], info.callbacks[j].val);
 433                                 if (ret < 0)
 434                                         return ret;
 435                                 break;
 436                         }
 437         }
 438
 439         return 0;
 440 }
 441
 442 void
 443 fips_test_write_one_case(void)
 444 {
 445         uint32_t i;
 446
 447         for (i = info.vec_start_off; i < info.nb_vec_lines; i++)
 448                 fprintf(info.fp_wr, "%s\n", info.vec[i]);
 449 }
 450
 451 #ifdef RTE_HAS_JANSSON
 452 int
 453 fips_test_parse_one_json_vector_set(void)
 454 {
 455         json_t *algo_obj = json_object_get(json_info.json_vector_set, "algorithm");
 456         const char *algo_str = json_string_value(algo_obj);
 457
 458         /* Vector sets contain the algorithm type, and nothing else we need. */
 459         if (strstr(algo_str, "AES-GCM"))
 460                 info.algo = FIPS_TEST_ALGO_AES_GCM;
 461         if (strstr(algo_str, "HMAC"))
 462                 info.algo = FIPS_TEST_ALGO_HMAC;
 463         if (strstr(algo_str, "CMAC"))
 464                 info.algo = FIPS_TEST_ALGO_AES_CMAC;
 465         else
 466                 return -EINVAL;
 467
 468         return 0;
 469 }
 470
 471 int
 472 fips_test_parse_one_json_group(void)
 473 {
 474         int ret, i;
 475         json_t *param;
 476
 477         if (info.interim_callbacks) {
 478                 char json_value[256];
 479                 for (i = 0; info.interim_callbacks[i].key != NULL; i++) {
 480                         param = json_object_get(json_info.json_test_group,
 481                                         info.interim_callbacks[i].key);
 482                         switch (json_typeof(param)) {
 483                         case JSON_STRING:
 484                                 snprintf(json_value, 256, "%s", json_string_value(param));
 485                                 break;
 486
 487                         case JSON_INTEGER:
 488                                 snprintf(json_value, 255, "%"JSON_INTEGER_FORMAT,
 489                                                 json_integer_value(param));
 490                                 break;
 491
 492                         default:
 493                                 return -EINVAL;
 494                         }
 495
 496                         /* First argument is blank because the key
 497                          * is not included in the string being parsed.
 498                          */
 499                         ret = info.interim_callbacks[i].cb(
 500                                 "", json_value,
 501                                 info.interim_callbacks[i].val
 502                         );
 503                         if (ret < 0)
 504                                 return ret;
 505                 }
 506         }
 507
 508         return 0;
 509 }
 510
 511 int
 512 fips_test_parse_one_json_case(void)
 513 {
 514         uint32_t i;
 515         int ret = 0;
 516         json_t *param;
 517
 518         for (i = 0; info.callbacks[i].key != NULL; i++) {
 519                 param = json_object_get(json_info.json_test_case, info.callbacks[i].key);
 520                 if (param) {
 521                         strcpy(info.one_line_text, json_string_value(param));
 522                         /* First argument is blank because the key
 523                          * is not included in the string being parsed.
 524                          */
 525                         ret = info.callbacks[i].cb(
 526                                 "", info.one_line_text,
 527                                 info.callbacks[i].val
 528                         );
 529                         if (ret < 0)
 530                                 return ret;
 531                 }
 532         }
 533
 534         return 0;
 535 }
 536 #endif /* RTE_HAS_JANSSON */
 537
 538 static int
 539 parser_read_uint64_hex(uint64_t *value, const char *p)
 540 {
 541         char *next;
 542         uint64_t val;
 543
 544         p = skip_white_spaces(p);
 545
 546         val = strtoul(p, &next, 16);
 547         if (p == next)
 548                 return -EINVAL;
 549
 550         p = skip_white_spaces(next);
 551         if (*p != '\0')
 552                 return -EINVAL;
 553
 554         *value = val;
 555         return 0;
 556 }
 557
 558 int
 559 parser_read_uint8_hex(uint8_t *value, const char *p)
 560 {
 561         uint64_t val = 0;
 562         int ret = parser_read_uint64_hex(&val, p);
 563
 564         if (ret < 0)
 565                 return ret;
 566
 567         if (val > UINT8_MAX)
 568                 return -ERANGE;
 569
 570         *value = val;
 571         return 0;
 572 }
 573
 574 int
 575 parse_uint8_known_len_hex_str(const char *key, char *src, struct fips_val *val)
 576 {
 577         struct fips_val tmp_val = {0};
 578         uint32_t len = val->len;
 579         int ret;
 580
 581         if (len == 0) {
 582                 if (val->val != NULL) {
 583                         rte_free(val->val);
 584                         val->val = NULL;
 585                 }
 586
 587                 return 0;
 588         }
 589
 590         ret = parse_uint8_hex_str(key, src, &tmp_val);
 591         if (ret < 0)
 592                 return ret;
 593
 594         if (tmp_val.len == val->len) {
 595                 val->val = tmp_val.val;
 596                 return 0;
 597         }
 598
 599         if (tmp_val.len < val->len) {
 600                 rte_free(tmp_val.val);
 601                 return -EINVAL;
 602         }
 603
 604         val->val = rte_zmalloc(NULL, val->len, 0);
 605         if (!val->val) {
 606                 rte_free(tmp_val.val);
 607                 memset(val, 0, sizeof(*val));
 608                 return -ENOMEM;
 609         }
 610
 611         memcpy(val->val, tmp_val.val, val->len);
 612         rte_free(tmp_val.val);
 613
 614         return 0;
 615 }
 616
 617 int
 618 parse_uint8_hex_str(const char *key, char *src, struct fips_val *val)
 619 {
 620         uint32_t len, j;
 621
 622         src += strlen(key);
 623
 624         len = strlen(src) / 2;
 625
 626         if (val->val) {
 627                 rte_free(val->val);
 628                 val->val = NULL;
 629         }
 630
 631         val->val = rte_zmalloc(NULL, len, 0);
 632         if (!val->val)
 633                 return -ENOMEM;
 634
 635         for (j = 0; j < len; j++) {
 636                 char byte[3] = {src[j * 2], src[j * 2 + 1], '\0'};
 637
 638                 if (parser_read_uint8_hex(&val->val[j], byte) < 0) {
 639                         rte_free(val->val);
 640                         memset(val, 0, sizeof(*val));
 641                         return -EINVAL;
 642                 }
 643         }
 644
 645         val->len = len;
 646
 647         return 0;
 648 }
 649
 650 int
 651 parser_read_uint32_val(const char *key, char *src, struct fips_val *val)
 652 {
 653         char *data = src + strlen(key);
 654         size_t data_len = strlen(data);
 655         int ret;
 656
 657         if (data[data_len - 1] == ']') {
 658                 char *tmp_data = calloc(1, data_len + 1);
 659
 660                 if (tmp_data == NULL)
 661                         return -ENOMEM;
 662
 663                 strlcpy(tmp_data, data, data_len);
 664
 665                 ret = parser_read_uint32(&val->len, tmp_data);
 666
 667                 free(tmp_data);
 668         } else
 669                 ret = parser_read_uint32(&val->len, data);
 670
 671         return ret;
 672 }
 673
 674 int
 675 parser_read_uint32_bit_val(const char *key, char *src, struct fips_val *val)
 676 {
 677         int ret;
 678
 679         ret = parser_read_uint32_val(key, src, val);
 680
 681         if (ret < 0)
 682                 return ret;
 683
 684         val->len /= 8;
 685
 686         return 0;
 687 }
 688
 689 int
 690 writeback_hex_str(const char *key, char *dst, struct fips_val *val)
 691 {
 692         char *str = dst;
 693         uint32_t len;
 694
 695         str += strlen(key);
 696
 697         for (len = 0; len < val->len; len++)
 698                 snprintf(str + len * 2, 255, "%02x", val->val[len]);
 699
 700         return 0;
 701 }
 702
 703 static int
 704 parser_read_uint64(uint64_t *value, const char *p)
 705 {
 706         char *next;
 707         uint64_t val;
 708
 709         p = skip_white_spaces(p);
 710         if (!isdigit(*p))
 711                 return -EINVAL;
 712
 713         val = strtoul(p, &next, 10);
 714         if (p == next)
 715                 return -EINVAL;
 716
 717         p = next;
 718         switch (*p) {
 719         case 'T':
 720                 val *= 1024ULL;
 721                 /* fall through */
 722         case 'G':
 723                 val *= 1024ULL;
 724                 /* fall through */
 725         case 'M':
 726                 val *= 1024ULL;
 727                 /* fall through */
 728         case 'k':
 729         case 'K':
 730                 val *= 1024ULL;
 731                 p++;
 732                 break;
 733         }
 734
 735         p = skip_white_spaces(p);
 736         if (*p != '\0')
 737                 return -EINVAL;
 738
 739         *value = val;
 740         return 0;
 741 }
 742
 743 int
 744 parser_read_uint32(uint32_t *value, char *p)
 745 {
 746         uint64_t val = 0;
 747         int ret = parser_read_uint64(&val, p);
 748
 749         if (ret < 0)
 750                 return ret;
 751
 752         if (val > UINT32_MAX)
 753                 return -EINVAL;
 754
 755         *value = val;
 756         return 0;
 757 }
 758
 759 int
 760 parser_read_uint16(uint16_t *value, const char *p)
 761 {
 762         uint64_t val = 0;
 763         int ret = parser_read_uint64(&val, p);
 764
 765         if (ret < 0)
 766                 return ret;
 767
 768         if (val > UINT16_MAX)
 769                 return -ERANGE;
 770
 771         *value = val;
 772         return 0;
 773 }
 774
 775 void
 776 parse_write_hex_str(struct fips_val *src)
 777 {
 778         writeback_hex_str("", info.one_line_text, src);
 779
 780         fprintf(info.fp_wr, "%s\n", info.one_line_text);
 781 }
 782
 783 int
 784 update_info_vec(uint32_t count)
 785 {
 786         const struct fips_test_callback *cb;
 787         uint32_t i, j;
 788
 789         if (!info.writeback_callbacks)
 790                 return -1;
 791
 792         cb = &info.writeback_callbacks[0];
 793
 794         if ((info.version == 21.4f) && (!(strstr(info.vec[0], cb->key)))) {
 795                 fprintf(info.fp_wr, "%s%u\n", cb->key, count);
 796                 i = 0;
 797         } else {
 798                 snprintf(info.vec[0], strlen(info.vec[0]) + 4, "%s%u", cb->key,
 799                                 count);
 800                 i = 1;
 801         }
 802
 803         for (; i < info.nb_vec_lines; i++) {
 804                 for (j = 1; info.writeback_callbacks[j].key != NULL; j++) {
 805                         cb = &info.writeback_callbacks[j];
 806                         if (strstr(info.vec[i], cb->key)) {
 807                                 cb->cb(cb->key, info.vec[i], cb->val);
 808                                 break;
 809                         }
 810                 }
 811         }
 812
 813         return 0;
 814 }