cmd/tpm-v1.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2013 The Chromium OS Authors.
   4  */
   5
   6 #include <common.h>
   7 #include <command.h>
   8 #include <env.h>
   9 #include <malloc.h>
  10 #include <asm/unaligned.h>
  11 #include <tpm-common.h>
  12 #include <tpm-v1.h>
  13 #include "tpm-user-utils.h"
  14 #include <tpm_api.h>
  15
  16 static int do_tpm_startup(struct cmd_tbl *cmdtp, int flag, int argc,
  17                           char *const argv[])
  18 {
  19         enum tpm_startup_type mode;
  20         struct udevice *dev;
  21         int rc;
  22
  23         rc = get_tpm(&dev);
  24         if (rc)
  25                 return rc;
  26         if (argc != 2)
  27                 return CMD_RET_USAGE;
  28         if (!strcasecmp("TPM_ST_CLEAR", argv[1])) {
  29                 mode = TPM_ST_CLEAR;
  30         } else if (!strcasecmp("TPM_ST_STATE", argv[1])) {
  31                 mode = TPM_ST_STATE;
  32         } else if (!strcasecmp("TPM_ST_DEACTIVATED", argv[1])) {
  33                 mode = TPM_ST_DEACTIVATED;
  34         } else {
  35                 printf("Couldn't recognize mode string: %s\n", argv[1]);
  36                 return CMD_RET_FAILURE;
  37         }
  38
  39         return report_return_code(tpm_startup(dev, mode));
  40 }
  41
  42 static int do_tpm_nv_define_space(struct cmd_tbl *cmdtp, int flag, int argc,
  43                                   char *const argv[])
  44 {
  45         u32 index, perm, size;
  46         struct udevice *dev;
  47         int rc;
  48
  49         rc = get_tpm(&dev);
  50         if (rc)
  51                 return rc;
  52
  53         if (argc != 4)
  54                 return CMD_RET_USAGE;
  55         index = simple_strtoul(argv[1], NULL, 0);
  56         perm = simple_strtoul(argv[2], NULL, 0);
  57         size = simple_strtoul(argv[3], NULL, 0);
  58
  59         return report_return_code(tpm1_nv_define_space(dev, index, perm, size));
  60 }
  61
  62 static int do_tpm_nv_read_value(struct cmd_tbl *cmdtp, int flag, int argc,
  63                                 char *const argv[])
  64 {
  65         u32 index, count, rc;
  66         struct udevice *dev;
  67         void *data;
  68
  69         rc = get_tpm(&dev);
  70         if (rc)
  71                 return rc;
  72
  73         if (argc != 4)
  74                 return CMD_RET_USAGE;
  75         index = simple_strtoul(argv[1], NULL, 0);
  76         data = (void *)simple_strtoul(argv[2], NULL, 0);
  77         count = simple_strtoul(argv[3], NULL, 0);
  78
  79         rc = tpm_nv_read_value(dev, index, data, count);
  80         if (!rc) {
  81                 puts("area content:\n");
  82                 print_byte_string(data, count);
  83         }
  84
  85         return report_return_code(rc);
  86 }
  87
  88 static int do_tpm_nv_write_value(struct cmd_tbl *cmdtp, int flag, int argc,
  89                                  char *const argv[])
  90 {
  91         struct udevice *dev;
  92         u32 index, rc;
  93         size_t count;
  94         void *data;
  95
  96         rc = get_tpm(&dev);
  97         if (rc)
  98                 return rc;
  99
 100         if (argc != 3)
 101                 return CMD_RET_USAGE;
 102         index = simple_strtoul(argv[1], NULL, 0);
 103         data = parse_byte_string(argv[2], NULL, &count);
 104         if (!data) {
 105                 printf("Couldn't parse byte string %s\n", argv[2]);
 106                 return CMD_RET_FAILURE;
 107         }
 108
 109         rc = tpm_nv_write_value(dev, index, data, count);
 110         free(data);
 111
 112         return report_return_code(rc);
 113 }
 114
 115 static int do_tpm_extend(struct cmd_tbl *cmdtp, int flag, int argc,
 116                          char *const argv[])
 117 {
 118         u8 in_digest[20], out_digest[20];
 119         struct udevice *dev;
 120         u32 index, rc;
 121
 122         rc = get_tpm(&dev);
 123         if (rc)
 124                 return rc;
 125
 126         if (argc != 3)
 127                 return CMD_RET_USAGE;
 128         index = simple_strtoul(argv[1], NULL, 0);
 129         if (!parse_byte_string(argv[2], in_digest, NULL)) {
 130                 printf("Couldn't parse byte string %s\n", argv[2]);
 131                 return CMD_RET_FAILURE;
 132         }
 133
 134         rc = tpm_pcr_extend(dev, index, in_digest, out_digest);
 135         if (!rc) {
 136                 puts("PCR value after execution of the command:\n");
 137                 print_byte_string(out_digest, sizeof(out_digest));
 138         }
 139
 140         return report_return_code(rc);
 141 }
 142
 143 static int do_tpm_pcr_read(struct cmd_tbl *cmdtp, int flag, int argc,
 144                            char *const argv[])
 145 {
 146         u32 index, count, rc;
 147         struct udevice *dev;
 148         void *data;
 149
 150         rc = get_tpm(&dev);
 151         if (rc)
 152                 return rc;
 153
 154         if (argc != 4)
 155                 return CMD_RET_USAGE;
 156         index = simple_strtoul(argv[1], NULL, 0);
 157         data = (void *)simple_strtoul(argv[2], NULL, 0);
 158         count = simple_strtoul(argv[3], NULL, 0);
 159
 160         rc = tpm_pcr_read(dev, index, data, count);
 161         if (!rc) {
 162                 puts("Named PCR content:\n");
 163                 print_byte_string(data, count);
 164         }
 165
 166         return report_return_code(rc);
 167 }
 168
 169 static int do_tpm_tsc_physical_presence(struct cmd_tbl *cmdtp, int flag,
 170                                         int argc, char *const argv[])
 171 {
 172         struct udevice *dev;
 173         u16 presence;
 174         int rc;
 175
 176         rc = get_tpm(&dev);
 177         if (rc)
 178                 return rc;
 179
 180         if (argc != 2)
 181                 return CMD_RET_USAGE;
 182         presence = (u16)simple_strtoul(argv[1], NULL, 0);
 183
 184         return report_return_code(tpm_tsc_physical_presence(dev, presence));
 185 }
 186
 187 static int do_tpm_read_pubek(struct cmd_tbl *cmdtp, int flag, int argc,
 188                              char *const argv[])
 189 {
 190         struct udevice *dev;
 191         u32 count, rc;
 192         void *data;
 193
 194         rc = get_tpm(&dev);
 195         if (rc)
 196                 return rc;
 197
 198         if (argc != 3)
 199                 return CMD_RET_USAGE;
 200         data = (void *)simple_strtoul(argv[1], NULL, 0);
 201         count = simple_strtoul(argv[2], NULL, 0);
 202
 203         rc = tpm_read_pubek(dev, data, count);
 204         if (!rc) {
 205                 puts("pubek value:\n");
 206                 print_byte_string(data, count);
 207         }
 208
 209         return report_return_code(rc);
 210 }
 211
 212 static int do_tpm_physical_set_deactivated(struct cmd_tbl *cmdtp, int flag,
 213                                            int argc, char *const argv[])
 214 {
 215         struct udevice *dev;
 216         u8 state;
 217         int rc;
 218
 219         rc = get_tpm(&dev);
 220         if (rc)
 221                 return rc;
 222
 223         if (argc != 2)
 224                 return CMD_RET_USAGE;
 225         state = (u8)simple_strtoul(argv[1], NULL, 0);
 226
 227         return report_return_code(tpm_physical_set_deactivated(dev, state));
 228 }
 229
 230 static int do_tpm_get_capability(struct cmd_tbl *cmdtp, int flag, int argc,
 231                                  char *const argv[])
 232 {
 233         u32 cap_area, sub_cap, rc;
 234         void *cap;
 235         size_t count;
 236         struct udevice *dev;
 237
 238         rc = get_tpm(&dev);
 239         if (rc)
 240                 return rc;
 241
 242         if (argc != 5)
 243                 return CMD_RET_USAGE;
 244         cap_area = simple_strtoul(argv[1], NULL, 0);
 245         sub_cap = simple_strtoul(argv[2], NULL, 0);
 246         cap = (void *)simple_strtoul(argv[3], NULL, 0);
 247         count = simple_strtoul(argv[4], NULL, 0);
 248
 249         rc = tpm_get_capability(dev, cap_area, sub_cap, cap, count);
 250         if (!rc) {
 251                 puts("capability information:\n");
 252                 print_byte_string(cap, count);
 253         }
 254
 255         return report_return_code(rc);
 256 }
 257
 258 static int do_tpm_raw_transfer(struct cmd_tbl *cmdtp, int flag, int argc,
 259                                char *const argv[])
 260 {
 261         struct udevice *dev;
 262         void *command;
 263         u8 response[1024];
 264         size_t count, response_length = sizeof(response);
 265         u32 rc;
 266
 267         command = parse_byte_string(argv[1], NULL, &count);
 268         if (!command) {
 269                 printf("Couldn't parse byte string %s\n", argv[1]);
 270                 return CMD_RET_FAILURE;
 271         }
 272
 273         rc = get_tpm(&dev);
 274         if (rc)
 275                 return rc;
 276
 277         rc = tpm_xfer(dev, command, count, response, &response_length);
 278         free(command);
 279         if (!rc) {
 280                 puts("tpm response:\n");
 281                 print_byte_string(response, response_length);
 282         }
 283
 284         return report_return_code(rc);
 285 }
 286
 287 static int do_tpm_nv_define(struct cmd_tbl *cmdtp, int flag, int argc,
 288                             char *const argv[])
 289 {
 290         u32 index, perm, size;
 291         struct udevice *dev;
 292         int rc;
 293
 294         rc = get_tpm(&dev);
 295         if (rc)
 296                 return rc;
 297
 298         if (argc != 4)
 299                 return CMD_RET_USAGE;
 300         size = type_string_get_space_size(argv[1]);
 301         if (!size) {
 302                 printf("Couldn't parse arguments\n");
 303                 return CMD_RET_USAGE;
 304         }
 305         index = simple_strtoul(argv[2], NULL, 0);
 306         perm = simple_strtoul(argv[3], NULL, 0);
 307
 308         return report_return_code(tpm1_nv_define_space(dev, index, perm, size));
 309 }
 310
 311 static int do_tpm_nv_read(struct cmd_tbl *cmdtp, int flag, int argc,
 312                           char *const argv[])
 313 {
 314         u32 index, count, err;
 315         struct udevice *dev;
 316         void *data;
 317         int rc;
 318
 319         rc = get_tpm(&dev);
 320         if (rc)
 321                 return rc;
 322
 323         if (argc < 3)
 324                 return CMD_RET_USAGE;
 325         if (argc != 3 + type_string_get_num_values(argv[1]))
 326                 return CMD_RET_USAGE;
 327         index = simple_strtoul(argv[2], NULL, 0);
 328         data = type_string_alloc(argv[1], &count);
 329         if (!data) {
 330                 printf("Couldn't parse arguments\n");
 331                 return CMD_RET_USAGE;
 332         }
 333
 334         err = tpm_nv_read_value(dev, index, data, count);
 335         if (!err) {
 336                 if (type_string_write_vars(argv[1], data, argv + 3)) {
 337                         printf("Couldn't write to variables\n");
 338                         err = ~0;
 339                 }
 340         }
 341         free(data);
 342
 343         return report_return_code(err);
 344 }
 345
 346 static int do_tpm_nv_write(struct cmd_tbl *cmdtp, int flag, int argc,
 347                            char *const argv[])
 348 {
 349         u32 index, count, err;
 350         struct udevice *dev;
 351         void *data;
 352         int rc;
 353
 354         rc = get_tpm(&dev);
 355         if (rc)
 356                 return rc;
 357
 358         if (argc < 3)
 359                 return CMD_RET_USAGE;
 360         if (argc != 3 + type_string_get_num_values(argv[1]))
 361                 return CMD_RET_USAGE;
 362         index = simple_strtoul(argv[2], NULL, 0);
 363         data = type_string_alloc(argv[1], &count);
 364         if (!data) {
 365                 printf("Couldn't parse arguments\n");
 366                 return CMD_RET_USAGE;
 367         }
 368         if (type_string_pack(argv[1], argv + 3, data)) {
 369                 printf("Couldn't parse arguments\n");
 370                 free(data);
 371                 return CMD_RET_USAGE;
 372         }
 373
 374         err = tpm_nv_write_value(dev, index, data, count);
 375         free(data);
 376
 377         return report_return_code(err);
 378 }
 379
 380 #ifdef CONFIG_TPM_AUTH_SESSIONS
 381
 382 static int do_tpm_oiap(struct cmd_tbl *cmdtp, int flag, int argc,
 383                        char *const argv[])
 384 {
 385         u32 auth_handle, err;
 386         struct udevice *dev;
 387         int rc;
 388
 389         rc = get_tpm(&dev);
 390         if (rc)
 391                 return rc;
 392
 393         err = tpm1_oiap(dev, &auth_handle);
 394
 395         return report_return_code(err);
 396 }
 397
 398 #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
 399 static int do_tpm_load_key_by_sha1(struct cmd_tbl *cmdtp, int flag, int argc,
 400                                    char *const argv[])
 401 {
 402         u32 parent_handle = 0;
 403         u32 key_len, key_handle, err;
 404         u8 usage_auth[DIGEST_LENGTH];
 405         u8 parent_hash[DIGEST_LENGTH];
 406         void *key;
 407         struct udevice *dev;
 408
 409         err = get_tpm(&dev);
 410         if (err)
 411                 return err;
 412
 413         if (argc < 5)
 414                 return CMD_RET_USAGE;
 415
 416         parse_byte_string(argv[1], parent_hash, NULL);
 417         key = (void *)simple_strtoul(argv[2], NULL, 0);
 418         key_len = simple_strtoul(argv[3], NULL, 0);
 419         if (strlen(argv[4]) != 2 * DIGEST_LENGTH)
 420                 return CMD_RET_FAILURE;
 421         parse_byte_string(argv[4], usage_auth, NULL);
 422
 423         err = tpm1_find_key_sha1(dev, usage_auth, parent_hash, &parent_handle);
 424         if (err) {
 425                 printf("Could not find matching parent key (err = %d)\n", err);
 426                 return CMD_RET_FAILURE;
 427         }
 428
 429         printf("Found parent key %08x\n", parent_handle);
 430
 431         err = tpm1_load_key2_oiap(dev, parent_handle, key, key_len, usage_auth,
 432                                  &key_handle);
 433         if (!err) {
 434                 printf("Key handle is 0x%x\n", key_handle);
 435                 env_set_hex("key_handle", key_handle);
 436         }
 437
 438         return report_return_code(err);
 439 }
 440 #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
 441
 442 static int do_tpm_load_key2_oiap(struct cmd_tbl *cmdtp, int flag, int argc,
 443                                  char *const argv[])
 444 {
 445         u32 parent_handle, key_len, key_handle, err;
 446         u8 usage_auth[DIGEST_LENGTH];
 447         void *key;
 448         struct udevice *dev;
 449         int rc;
 450
 451         rc = get_tpm(&dev);
 452         if (rc)
 453                 return rc;
 454
 455         if (argc < 5)
 456                 return CMD_RET_USAGE;
 457
 458         parent_handle = simple_strtoul(argv[1], NULL, 0);
 459         key = (void *)simple_strtoul(argv[2], NULL, 0);
 460         key_len = simple_strtoul(argv[3], NULL, 0);
 461         if (strlen(argv[4]) != 2 * DIGEST_LENGTH)
 462                 return CMD_RET_FAILURE;
 463         parse_byte_string(argv[4], usage_auth, NULL);
 464
 465         err = tpm1_load_key2_oiap(dev, parent_handle, key, key_len, usage_auth,
 466                                   &key_handle);
 467         if (!err)
 468                 printf("Key handle is 0x%x\n", key_handle);
 469
 470         return report_return_code(err);
 471 }
 472
 473 static int do_tpm_get_pub_key_oiap(struct cmd_tbl *cmdtp, int flag, int argc,
 474                                    char *const argv[])
 475 {
 476         u32 key_handle, err;
 477         u8 usage_auth[DIGEST_LENGTH];
 478         u8 pub_key_buffer[TPM_PUBKEY_MAX_LENGTH];
 479         size_t pub_key_len = sizeof(pub_key_buffer);
 480         struct udevice *dev;
 481         int rc;
 482
 483         rc = get_tpm(&dev);
 484         if (rc)
 485                 return rc;
 486
 487         if (argc < 3)
 488                 return CMD_RET_USAGE;
 489
 490         key_handle = simple_strtoul(argv[1], NULL, 0);
 491         if (strlen(argv[2]) != 2 * DIGEST_LENGTH)
 492                 return CMD_RET_FAILURE;
 493         parse_byte_string(argv[2], usage_auth, NULL);
 494
 495         err = tpm1_get_pub_key_oiap(dev, key_handle, usage_auth, pub_key_buffer,
 496                                     &pub_key_len);
 497         if (!err) {
 498                 printf("dump of received pub key structure:\n");
 499                 print_byte_string(pub_key_buffer, pub_key_len);
 500         }
 501         return report_return_code(err);
 502 }
 503
 504 TPM_COMMAND_NO_ARG(tpm1_end_oiap)
 505
 506 #endif /* CONFIG_TPM_AUTH_SESSIONS */
 507
 508 #ifdef CONFIG_TPM_FLUSH_RESOURCES
 509 static int do_tpm_flush(struct cmd_tbl *cmdtp, int flag, int argc,
 510                         char *const argv[])
 511 {
 512         struct udevice *dev;
 513         int type = 0;
 514         int rc;
 515
 516         rc = get_tpm(&dev);
 517         if (rc)
 518                 return rc;
 519
 520         if (argc != 3)
 521                 return CMD_RET_USAGE;
 522
 523         if (!strcasecmp(argv[1], "key"))
 524                 type = TPM_RT_KEY;
 525         else if (!strcasecmp(argv[1], "auth"))
 526                 type = TPM_RT_AUTH;
 527         else if (!strcasecmp(argv[1], "hash"))
 528                 type = TPM_RT_HASH;
 529         else if (!strcasecmp(argv[1], "trans"))
 530                 type = TPM_RT_TRANS;
 531         else if (!strcasecmp(argv[1], "context"))
 532                 type = TPM_RT_CONTEXT;
 533         else if (!strcasecmp(argv[1], "counter"))
 534                 type = TPM_RT_COUNTER;
 535         else if (!strcasecmp(argv[1], "delegate"))
 536                 type = TPM_RT_DELEGATE;
 537         else if (!strcasecmp(argv[1], "daa_tpm"))
 538                 type = TPM_RT_DAA_TPM;
 539         else if (!strcasecmp(argv[1], "daa_v0"))
 540                 type = TPM_RT_DAA_V0;
 541         else if (!strcasecmp(argv[1], "daa_v1"))
 542                 type = TPM_RT_DAA_V1;
 543
 544         if (!type) {
 545                 printf("Resource type %s unknown.\n", argv[1]);
 546                 return -1;
 547         }
 548
 549         if (!strcasecmp(argv[2], "all")) {
 550                 u16 res_count;
 551                 u8 buf[288];
 552                 u8 *ptr;
 553                 int err;
 554                 uint i;
 555
 556                 /* fetch list of already loaded resources in the TPM */
 557                 err = tpm_get_capability(dev, TPM_CAP_HANDLE, type, buf,
 558                                          sizeof(buf));
 559                 if (err) {
 560                         printf("tpm_get_capability returned error %d.\n", err);
 561                         return -1;
 562                 }
 563                 res_count = get_unaligned_be16(buf);
 564                 ptr = buf + 2;
 565                 for (i = 0; i < res_count; ++i, ptr += 4)
 566                         tpm1_flush_specific(dev, get_unaligned_be32(ptr), type);
 567         } else {
 568                 u32 handle = simple_strtoul(argv[2], NULL, 0);
 569
 570                 if (!handle) {
 571                         printf("Illegal resource handle %s\n", argv[2]);
 572                         return -1;
 573                 }
 574                 tpm1_flush_specific(dev, cpu_to_be32(handle), type);
 575         }
 576
 577         return 0;
 578 }
 579 #endif /* CONFIG_TPM_FLUSH_RESOURCES */
 580
 581 #ifdef CONFIG_TPM_LIST_RESOURCES
 582 static int do_tpm_list(struct cmd_tbl *cmdtp, int flag, int argc,
 583                        char *const argv[])
 584 {
 585         struct udevice *dev;
 586         int type = 0;
 587         u16 res_count;
 588         u8 buf[288];
 589         u8 *ptr;
 590         int err;
 591         uint i;
 592
 593         err = get_tpm(&dev);
 594         if (err)
 595                 return err;
 596
 597         if (argc != 2)
 598                 return CMD_RET_USAGE;
 599
 600         if (!strcasecmp(argv[1], "key"))
 601                 type = TPM_RT_KEY;
 602         else if (!strcasecmp(argv[1], "auth"))
 603                 type = TPM_RT_AUTH;
 604         else if (!strcasecmp(argv[1], "hash"))
 605                 type = TPM_RT_HASH;
 606         else if (!strcasecmp(argv[1], "trans"))
 607                 type = TPM_RT_TRANS;
 608         else if (!strcasecmp(argv[1], "context"))
 609                 type = TPM_RT_CONTEXT;
 610         else if (!strcasecmp(argv[1], "counter"))
 611                 type = TPM_RT_COUNTER;
 612         else if (!strcasecmp(argv[1], "delegate"))
 613                 type = TPM_RT_DELEGATE;
 614         else if (!strcasecmp(argv[1], "daa_tpm"))
 615                 type = TPM_RT_DAA_TPM;
 616         else if (!strcasecmp(argv[1], "daa_v0"))
 617                 type = TPM_RT_DAA_V0;
 618         else if (!strcasecmp(argv[1], "daa_v1"))
 619                 type = TPM_RT_DAA_V1;
 620
 621         if (!type) {
 622                 printf("Resource type %s unknown.\n", argv[1]);
 623                 return -1;
 624         }
 625
 626         /* fetch list of already loaded resources in the TPM */
 627         err = tpm_get_capability(dev, TPM_CAP_HANDLE, type, buf,
 628                                  sizeof(buf));
 629         if (err) {
 630                 printf("tpm_get_capability returned error %d.\n", err);
 631                 return -1;
 632         }
 633         res_count = get_unaligned_be16(buf);
 634         ptr = buf + 2;
 635
 636         printf("Resources of type %s (%02x):\n", argv[1], type);
 637         if (!res_count) {
 638                 puts("None\n");
 639         } else {
 640                 for (i = 0; i < res_count; ++i, ptr += 4)
 641                         printf("Index %d: %08x\n", i, get_unaligned_be32(ptr));
 642         }
 643
 644         return 0;
 645 }
 646 #endif /* CONFIG_TPM_LIST_RESOURCES */
 647
 648 TPM_COMMAND_NO_ARG(tpm_self_test_full)
 649 TPM_COMMAND_NO_ARG(tpm_continue_self_test)
 650 TPM_COMMAND_NO_ARG(tpm_force_clear)
 651 TPM_COMMAND_NO_ARG(tpm_physical_enable)
 652 TPM_COMMAND_NO_ARG(tpm_physical_disable)
 653
 654 static struct cmd_tbl tpm1_commands[] = {
 655         U_BOOT_CMD_MKENT(device, 0, 1, do_tpm_device, "", ""),
 656         U_BOOT_CMD_MKENT(info, 0, 1, do_tpm_info, "", ""),
 657         U_BOOT_CMD_MKENT(init, 0, 1, do_tpm_init, "", ""),
 658         U_BOOT_CMD_MKENT(startup, 0, 1,
 659                          do_tpm_startup, "", ""),
 660         U_BOOT_CMD_MKENT(self_test_full, 0, 1,
 661                          do_tpm_self_test_full, "", ""),
 662         U_BOOT_CMD_MKENT(continue_self_test, 0, 1,
 663                          do_tpm_continue_self_test, "", ""),
 664         U_BOOT_CMD_MKENT(force_clear, 0, 1,
 665                          do_tpm_force_clear, "", ""),
 666         U_BOOT_CMD_MKENT(physical_enable, 0, 1,
 667                          do_tpm_physical_enable, "", ""),
 668         U_BOOT_CMD_MKENT(physical_disable, 0, 1,
 669                          do_tpm_physical_disable, "", ""),
 670         U_BOOT_CMD_MKENT(nv_define_space, 0, 1,
 671                          do_tpm_nv_define_space, "", ""),
 672         U_BOOT_CMD_MKENT(nv_read_value, 0, 1,
 673                          do_tpm_nv_read_value, "", ""),
 674         U_BOOT_CMD_MKENT(nv_write_value, 0, 1,
 675                          do_tpm_nv_write_value, "", ""),
 676         U_BOOT_CMD_MKENT(extend, 0, 1,
 677                          do_tpm_extend, "", ""),
 678         U_BOOT_CMD_MKENT(pcr_read, 0, 1,
 679                          do_tpm_pcr_read, "", ""),
 680         U_BOOT_CMD_MKENT(tsc_physical_presence, 0, 1,
 681                          do_tpm_tsc_physical_presence, "", ""),
 682         U_BOOT_CMD_MKENT(read_pubek, 0, 1,
 683                          do_tpm_read_pubek, "", ""),
 684         U_BOOT_CMD_MKENT(physical_set_deactivated, 0, 1,
 685                          do_tpm_physical_set_deactivated, "", ""),
 686         U_BOOT_CMD_MKENT(get_capability, 0, 1,
 687                          do_tpm_get_capability, "", ""),
 688         U_BOOT_CMD_MKENT(raw_transfer, 0, 1,
 689                          do_tpm_raw_transfer, "", ""),
 690         U_BOOT_CMD_MKENT(nv_define, 0, 1,
 691                          do_tpm_nv_define, "", ""),
 692         U_BOOT_CMD_MKENT(nv_read, 0, 1,
 693                          do_tpm_nv_read, "", ""),
 694         U_BOOT_CMD_MKENT(nv_write, 0, 1,
 695                          do_tpm_nv_write, "", ""),
 696 #ifdef CONFIG_TPM_AUTH_SESSIONS
 697         U_BOOT_CMD_MKENT(oiap, 0, 1,
 698                          do_tpm_oiap, "", ""),
 699         U_BOOT_CMD_MKENT(end_oiap, 0, 1,
 700                          do_tpm1_end_oiap, "", ""),
 701         U_BOOT_CMD_MKENT(load_key2_oiap, 0, 1,
 702                          do_tpm_load_key2_oiap, "", ""),
 703 #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
 704         U_BOOT_CMD_MKENT(load_key_by_sha1, 0, 1,
 705                          do_tpm_load_key_by_sha1, "", ""),
 706 #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
 707         U_BOOT_CMD_MKENT(get_pub_key_oiap, 0, 1,
 708                          do_tpm_get_pub_key_oiap, "", ""),
 709 #endif /* CONFIG_TPM_AUTH_SESSIONS */
 710 #ifdef CONFIG_TPM_FLUSH_RESOURCES
 711         U_BOOT_CMD_MKENT(flush, 0, 1,
 712                          do_tpm_flush, "", ""),
 713 #endif /* CONFIG_TPM_FLUSH_RESOURCES */
 714 #ifdef CONFIG_TPM_LIST_RESOURCES
 715         U_BOOT_CMD_MKENT(list, 0, 1,
 716                          do_tpm_list, "", ""),
 717 #endif /* CONFIG_TPM_LIST_RESOURCES */
 718 };
 719
 720 struct cmd_tbl *get_tpm1_commands(unsigned int *size)
 721 {
 722         *size = ARRAY_SIZE(tpm1_commands);
 723
 724         return tpm1_commands;
 725 }
 726
 727 U_BOOT_CMD(tpm, CONFIG_SYS_MAXARGS, 1, do_tpm,
 728 "Issue a TPMv1.x command",
 729 "cmd args...\n"
 730 "    - Issue TPM command <cmd> with arguments <args...>.\n"
 731 "Admin Startup and State Commands:\n"
 732 "  device [num device]\n"
 733 "    - Show all devices or set the specified device\n"
 734 "  info - Show information about the TPM\n"
 735 "  init\n"
 736 "    - Put TPM into a state where it waits for 'startup' command.\n"
 737 "  startup mode\n"
 738 "    - Issue TPM_Starup command.  <mode> is one of TPM_ST_CLEAR,\n"
 739 "      TPM_ST_STATE, and TPM_ST_DEACTIVATED.\n"
 740 "Admin Testing Commands:\n"
 741 "  self_test_full\n"
 742 "    - Test all of the TPM capabilities.\n"
 743 "  continue_self_test\n"
 744 "    - Inform TPM that it should complete the self-test.\n"
 745 "Admin Opt-in Commands:\n"
 746 "  physical_enable\n"
 747 "    - Set the PERMANENT disable flag to FALSE using physical presence as\n"
 748 "      authorization.\n"
 749 "  physical_disable\n"
 750 "    - Set the PERMANENT disable flag to TRUE using physical presence as\n"
 751 "      authorization.\n"
 752 "  physical_set_deactivated 0|1\n"
 753 "    - Set deactivated flag.\n"
 754 "Admin Ownership Commands:\n"
 755 "  force_clear\n"
 756 "    - Issue TPM_ForceClear command.\n"
 757 "  tsc_physical_presence flags\n"
 758 "    - Set TPM device's Physical Presence flags to <flags>.\n"
 759 "The Capability Commands:\n"
 760 "  get_capability cap_area sub_cap addr count\n"
 761 "    - Read <count> bytes of TPM capability indexed by <cap_area> and\n"
 762 "      <sub_cap> to memory address <addr>.\n"
 763 #if defined(CONFIG_TPM_FLUSH_RESOURCES) || defined(CONFIG_TPM_LIST_RESOURCES)
 764 "Resource management functions\n"
 765 #endif
 766 #ifdef CONFIG_TPM_FLUSH_RESOURCES
 767 "  flush resource_type id\n"
 768 "    - flushes a resource of type <resource_type> (may be one of key, auth,\n"
 769 "      hash, trans, context, counter, delegate, daa_tpm, daa_v0, daa_v1),\n"
 770 "      and id <id> from the TPM. Use an <id> of \"all\" to flush all\n"
 771 "      resources of that type.\n"
 772 #endif /* CONFIG_TPM_FLUSH_RESOURCES */
 773 #ifdef CONFIG_TPM_LIST_RESOURCES
 774 "  list resource_type\n"
 775 "    - lists resources of type <resource_type> (may be one of key, auth,\n"
 776 "      hash, trans, context, counter, delegate, daa_tpm, daa_v0, daa_v1),\n"
 777 "      contained in the TPM.\n"
 778 #endif /* CONFIG_TPM_LIST_RESOURCES */
 779 #ifdef CONFIG_TPM_AUTH_SESSIONS
 780 "Storage functions\n"
 781 "  loadkey2_oiap parent_handle key_addr key_len usage_auth\n"
 782 "    - loads a key data from memory address <key_addr>, <key_len> bytes\n"
 783 "      into TPM using the parent key <parent_handle> with authorization\n"
 784 "      <usage_auth> (20 bytes hex string).\n"
 785 #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
 786 "  load_key_by_sha1 parent_hash key_addr key_len usage_auth\n"
 787 "    - loads a key data from memory address <key_addr>, <key_len> bytes\n"
 788 "      into TPM using the parent hash <parent_hash> (20 bytes hex string)\n"
 789 "      with authorization <usage_auth> (20 bytes hex string).\n"
 790 #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
 791 "  get_pub_key_oiap key_handle usage_auth\n"
 792 "    - get the public key portion of a loaded key <key_handle> using\n"
 793 "      authorization <usage auth> (20 bytes hex string)\n"
 794 #endif /* CONFIG_TPM_AUTH_SESSIONS */
 795 "Endorsement Key Handling Commands:\n"
 796 "  read_pubek addr count\n"
 797 "    - Read <count> bytes of the public endorsement key to memory\n"
 798 "      address <addr>\n"
 799 "Integrity Collection and Reporting Commands:\n"
 800 "  extend index digest_hex_string\n"
 801 "    - Add a new measurement to a PCR.  Update PCR <index> with the 20-bytes\n"
 802 "      <digest_hex_string>\n"
 803 "  pcr_read index addr count\n"
 804 "    - Read <count> bytes from PCR <index> to memory address <addr>.\n"
 805 #ifdef CONFIG_TPM_AUTH_SESSIONS
 806 "Authorization Sessions\n"
 807 "  oiap\n"
 808 "    - setup an OIAP session\n"
 809 "  end_oiap\n"
 810 "    - terminates an active OIAP session\n"
 811 #endif /* CONFIG_TPM_AUTH_SESSIONS */
 812 "Non-volatile Storage Commands:\n"
 813 "  nv_define_space index permission size\n"
 814 "    - Establish a space at index <index> with <permission> of <size> bytes.\n"
 815 "  nv_read_value index addr count\n"
 816 "    - Read <count> bytes from space <index> to memory address <addr>.\n"
 817 "  nv_write_value index addr count\n"
 818 "    - Write <count> bytes from memory address <addr> to space <index>.\n"
 819 "Miscellaneous helper functions:\n"
 820 "  raw_transfer byte_string\n"
 821 "    - Send a byte string <byte_string> to TPM and print the response.\n"
 822 " Non-volatile storage helper functions:\n"
 823 "    These helper functions treat a non-volatile space as a non-padded\n"
 824 "    sequence of integer values.  These integer values are defined by a type\n"
 825 "    string, which is a text string of 'bwd' characters: 'b' means a 8-bit\n"
 826 "    value, 'w' 16-bit value, 'd' 32-bit value.  All helper functions take\n"
 827 "    a type string as their first argument.\n"
 828 "  nv_define type_string index perm\n"
 829 "    - Define a space <index> with permission <perm>.\n"
 830 "  nv_read types_string index vars...\n"
 831 "    - Read from space <index> to environment variables <vars...>.\n"
 832 "  nv_write types_string index values...\n"
 833 "    - Write to space <index> from values <values...>.\n"
 834 );