1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2013 The Chromium OS Authors.
4 */
5
6 #include <common.h>
7 #include <env.h>
8 #include <malloc.h>
9 #include <asm/unaligned.h>
10 #include <tpm-common.h>
11 #include <tpm-v1.h>
12 #include "tpm-user-utils.h"
13
do_tpm_startup(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])14 static int do_tpm_startup(cmd_tbl_t *cmdtp, int flag, int argc,
15 char * const argv[])
16 {
17 enum tpm_startup_type mode;
18 struct udevice *dev;
19 int rc;
20
21 rc = get_tpm(&dev);
22 if (rc)
23 return rc;
24 if (argc != 2)
25 return CMD_RET_USAGE;
26 if (!strcasecmp("TPM_ST_CLEAR", argv[1])) {
27 mode = TPM_ST_CLEAR;
28 } else if (!strcasecmp("TPM_ST_STATE", argv[1])) {
29 mode = TPM_ST_STATE;
30 } else if (!strcasecmp("TPM_ST_DEACTIVATED", argv[1])) {
31 mode = TPM_ST_DEACTIVATED;
32 } else {
33 printf("Couldn't recognize mode string: %s\n", argv[1]);
34 return CMD_RET_FAILURE;
35 }
36
37 return report_return_code(tpm_startup(dev, mode));
38 }
39
do_tpm_nv_define_space(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])40 static int do_tpm_nv_define_space(cmd_tbl_t *cmdtp, int flag, int argc,
41 char * const argv[])
42 {
43 u32 index, perm, size;
44 struct udevice *dev;
45 int rc;
46
47 rc = get_tpm(&dev);
48 if (rc)
49 return rc;
50
51 if (argc != 4)
52 return CMD_RET_USAGE;
53 index = simple_strtoul(argv[1], NULL, 0);
54 perm = simple_strtoul(argv[2], NULL, 0);
55 size = simple_strtoul(argv[3], NULL, 0);
56
57 return report_return_code(tpm_nv_define_space(dev, index, perm, size));
58 }
59
do_tpm_nv_read_value(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])60 static int do_tpm_nv_read_value(cmd_tbl_t *cmdtp, int flag, int argc,
61 char * const argv[])
62 {
63 u32 index, count, rc;
64 struct udevice *dev;
65 void *data;
66
67 rc = get_tpm(&dev);
68 if (rc)
69 return rc;
70
71 if (argc != 4)
72 return CMD_RET_USAGE;
73 index = simple_strtoul(argv[1], NULL, 0);
74 data = (void *)simple_strtoul(argv[2], NULL, 0);
75 count = simple_strtoul(argv[3], NULL, 0);
76
77 rc = tpm_nv_read_value(dev, index, data, count);
78 if (!rc) {
79 puts("area content:\n");
80 print_byte_string(data, count);
81 }
82
83 return report_return_code(rc);
84 }
85
do_tpm_nv_write_value(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])86 static int do_tpm_nv_write_value(cmd_tbl_t *cmdtp, int flag, int argc,
87 char * const argv[])
88 {
89 struct udevice *dev;
90 u32 index, rc;
91 size_t count;
92 void *data;
93
94 rc = get_tpm(&dev);
95 if (rc)
96 return rc;
97
98 if (argc != 3)
99 return CMD_RET_USAGE;
100 index = simple_strtoul(argv[1], NULL, 0);
101 data = parse_byte_string(argv[2], NULL, &count);
102 if (!data) {
103 printf("Couldn't parse byte string %s\n", argv[2]);
104 return CMD_RET_FAILURE;
105 }
106
107 rc = tpm_nv_write_value(dev, index, data, count);
108 free(data);
109
110 return report_return_code(rc);
111 }
112
do_tpm_extend(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])113 static int do_tpm_extend(cmd_tbl_t *cmdtp, int flag, int argc,
114 char * const argv[])
115 {
116 u8 in_digest[20], out_digest[20];
117 struct udevice *dev;
118 u32 index, rc;
119
120 rc = get_tpm(&dev);
121 if (rc)
122 return rc;
123
124 if (argc != 3)
125 return CMD_RET_USAGE;
126 index = simple_strtoul(argv[1], NULL, 0);
127 if (!parse_byte_string(argv[2], in_digest, NULL)) {
128 printf("Couldn't parse byte string %s\n", argv[2]);
129 return CMD_RET_FAILURE;
130 }
131
132 rc = tpm_extend(dev, index, in_digest, out_digest);
133 if (!rc) {
134 puts("PCR value after execution of the command:\n");
135 print_byte_string(out_digest, sizeof(out_digest));
136 }
137
138 return report_return_code(rc);
139 }
140
do_tpm_pcr_read(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])141 static int do_tpm_pcr_read(cmd_tbl_t *cmdtp, int flag, int argc,
142 char * const argv[])
143 {
144 u32 index, count, rc;
145 struct udevice *dev;
146 void *data;
147
148 rc = get_tpm(&dev);
149 if (rc)
150 return rc;
151
152 if (argc != 4)
153 return CMD_RET_USAGE;
154 index = simple_strtoul(argv[1], NULL, 0);
155 data = (void *)simple_strtoul(argv[2], NULL, 0);
156 count = simple_strtoul(argv[3], NULL, 0);
157
158 rc = tpm_pcr_read(dev, index, data, count);
159 if (!rc) {
160 puts("Named PCR content:\n");
161 print_byte_string(data, count);
162 }
163
164 return report_return_code(rc);
165 }
166
do_tpm_tsc_physical_presence(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])167 static int do_tpm_tsc_physical_presence(cmd_tbl_t *cmdtp, int flag, int argc,
168 char * const argv[])
169 {
170 struct udevice *dev;
171 u16 presence;
172 int rc;
173
174 rc = get_tpm(&dev);
175 if (rc)
176 return rc;
177
178 if (argc != 2)
179 return CMD_RET_USAGE;
180 presence = (u16)simple_strtoul(argv[1], NULL, 0);
181
182 return report_return_code(tpm_tsc_physical_presence(dev, presence));
183 }
184
do_tpm_read_pubek(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])185 static int do_tpm_read_pubek(cmd_tbl_t *cmdtp, int flag, int argc,
186 char * const argv[])
187 {
188 struct udevice *dev;
189 u32 count, rc;
190 void *data;
191
192 rc = get_tpm(&dev);
193 if (rc)
194 return rc;
195
196 if (argc != 3)
197 return CMD_RET_USAGE;
198 data = (void *)simple_strtoul(argv[1], NULL, 0);
199 count = simple_strtoul(argv[2], NULL, 0);
200
201 rc = tpm_read_pubek(dev, data, count);
202 if (!rc) {
203 puts("pubek value:\n");
204 print_byte_string(data, count);
205 }
206
207 return report_return_code(rc);
208 }
209
do_tpm_physical_set_deactivated(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])210 static int do_tpm_physical_set_deactivated(cmd_tbl_t *cmdtp, int flag, int argc,
211 char * const argv[])
212 {
213 struct udevice *dev;
214 u8 state;
215 int rc;
216
217 rc = get_tpm(&dev);
218 if (rc)
219 return rc;
220
221 if (argc != 2)
222 return CMD_RET_USAGE;
223 state = (u8)simple_strtoul(argv[1], NULL, 0);
224
225 return report_return_code(tpm_physical_set_deactivated(dev, state));
226 }
227
do_tpm_get_capability(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])228 static int do_tpm_get_capability(cmd_tbl_t *cmdtp, int flag, int argc,
229 char * const argv[])
230 {
231 u32 cap_area, sub_cap, rc;
232 void *cap;
233 size_t count;
234 struct udevice *dev;
235
236 rc = get_tpm(&dev);
237 if (rc)
238 return rc;
239
240 if (argc != 5)
241 return CMD_RET_USAGE;
242 cap_area = simple_strtoul(argv[1], NULL, 0);
243 sub_cap = simple_strtoul(argv[2], NULL, 0);
244 cap = (void *)simple_strtoul(argv[3], NULL, 0);
245 count = simple_strtoul(argv[4], NULL, 0);
246
247 rc = tpm_get_capability(dev, cap_area, sub_cap, cap, count);
248 if (!rc) {
249 puts("capability information:\n");
250 print_byte_string(cap, count);
251 }
252
253 return report_return_code(rc);
254 }
255
do_tpm_raw_transfer(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])256 static int do_tpm_raw_transfer(cmd_tbl_t *cmdtp, int flag, int argc,
257 char * const argv[])
258 {
259 struct udevice *dev;
260 void *command;
261 u8 response[1024];
262 size_t count, response_length = sizeof(response);
263 u32 rc;
264
265 command = parse_byte_string(argv[1], NULL, &count);
266 if (!command) {
267 printf("Couldn't parse byte string %s\n", argv[1]);
268 return CMD_RET_FAILURE;
269 }
270
271 rc = get_tpm(&dev);
272 if (rc)
273 return rc;
274
275 rc = tpm_xfer(dev, command, count, response, &response_length);
276 free(command);
277 if (!rc) {
278 puts("tpm response:\n");
279 print_byte_string(response, response_length);
280 }
281
282 return report_return_code(rc);
283 }
284
do_tpm_nv_define(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])285 static int do_tpm_nv_define(cmd_tbl_t *cmdtp, int flag, int argc,
286 char * const argv[])
287 {
288 u32 index, perm, size;
289 struct udevice *dev;
290 int rc;
291
292 rc = get_tpm(&dev);
293 if (rc)
294 return rc;
295
296 if (argc != 4)
297 return CMD_RET_USAGE;
298 size = type_string_get_space_size(argv[1]);
299 if (!size) {
300 printf("Couldn't parse arguments\n");
301 return CMD_RET_USAGE;
302 }
303 index = simple_strtoul(argv[2], NULL, 0);
304 perm = simple_strtoul(argv[3], NULL, 0);
305
306 return report_return_code(tpm_nv_define_space(dev, index, perm, size));
307 }
308
do_tpm_nv_read(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])309 static int do_tpm_nv_read(cmd_tbl_t *cmdtp, int flag, int argc,
310 char * const argv[])
311 {
312 u32 index, count, err;
313 struct udevice *dev;
314 void *data;
315 int rc;
316
317 rc = get_tpm(&dev);
318 if (rc)
319 return rc;
320
321 if (argc < 3)
322 return CMD_RET_USAGE;
323 if (argc != 3 + type_string_get_num_values(argv[1]))
324 return CMD_RET_USAGE;
325 index = simple_strtoul(argv[2], NULL, 0);
326 data = type_string_alloc(argv[1], &count);
327 if (!data) {
328 printf("Couldn't parse arguments\n");
329 return CMD_RET_USAGE;
330 }
331
332 err = tpm_nv_read_value(dev, index, data, count);
333 if (!err) {
334 if (type_string_write_vars(argv[1], data, argv + 3)) {
335 printf("Couldn't write to variables\n");
336 err = ~0;
337 }
338 }
339 free(data);
340
341 return report_return_code(err);
342 }
343
do_tpm_nv_write(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])344 static int do_tpm_nv_write(cmd_tbl_t *cmdtp, int flag, int argc,
345 char * const argv[])
346 {
347 u32 index, count, err;
348 struct udevice *dev;
349 void *data;
350 int rc;
351
352 rc = get_tpm(&dev);
353 if (rc)
354 return rc;
355
356 if (argc < 3)
357 return CMD_RET_USAGE;
358 if (argc != 3 + type_string_get_num_values(argv[1]))
359 return CMD_RET_USAGE;
360 index = simple_strtoul(argv[2], NULL, 0);
361 data = type_string_alloc(argv[1], &count);
362 if (!data) {
363 printf("Couldn't parse arguments\n");
364 return CMD_RET_USAGE;
365 }
366 if (type_string_pack(argv[1], argv + 3, data)) {
367 printf("Couldn't parse arguments\n");
368 free(data);
369 return CMD_RET_USAGE;
370 }
371
372 err = tpm_nv_write_value(dev, index, data, count);
373 free(data);
374
375 return report_return_code(err);
376 }
377
378 #ifdef CONFIG_TPM_AUTH_SESSIONS
379
do_tpm_oiap(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])380 static int do_tpm_oiap(cmd_tbl_t *cmdtp, int flag, int argc,
381 char * const argv[])
382 {
383 u32 auth_handle, err;
384 struct udevice *dev;
385 int rc;
386
387 rc = get_tpm(&dev);
388 if (rc)
389 return rc;
390
391 err = tpm_oiap(dev, &auth_handle);
392
393 return report_return_code(err);
394 }
395
396 #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
do_tpm_load_key_by_sha1(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])397 static int do_tpm_load_key_by_sha1(cmd_tbl_t *cmdtp, int flag, int argc, char *
398 const argv[])
399 {
400 u32 parent_handle = 0;
401 u32 key_len, key_handle, err;
402 u8 usage_auth[DIGEST_LENGTH];
403 u8 parent_hash[DIGEST_LENGTH];
404 void *key;
405 struct udevice *dev;
406
407 rc = get_tpm(&dev);
408 if (rc)
409 return rc;
410
411 if (argc < 5)
412 return CMD_RET_USAGE;
413
414 parse_byte_string(argv[1], parent_hash, NULL);
415 key = (void *)simple_strtoul(argv[2], NULL, 0);
416 key_len = simple_strtoul(argv[3], NULL, 0);
417 if (strlen(argv[4]) != 2 * DIGEST_LENGTH)
418 return CMD_RET_FAILURE;
419 parse_byte_string(argv[4], usage_auth, NULL);
420
421 err = tpm_find_key_sha1(usage_auth, parent_hash, &parent_handle);
422 if (err) {
423 printf("Could not find matching parent key (err = %d)\n", err);
424 return CMD_RET_FAILURE;
425 }
426
427 printf("Found parent key %08x\n", parent_handle);
428
429 err = tpm_load_key2_oiap(parent_handle, key, key_len, usage_auth,
430 &key_handle);
431 if (!err) {
432 printf("Key handle is 0x%x\n", key_handle);
433 env_set_hex("key_handle", key_handle);
434 }
435
436 return report_return_code(err);
437 }
438 #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
439
do_tpm_load_key2_oiap(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])440 static int do_tpm_load_key2_oiap(cmd_tbl_t *cmdtp, int flag, int argc,
441 char * const argv[])
442 {
443 u32 parent_handle, key_len, key_handle, err;
444 u8 usage_auth[DIGEST_LENGTH];
445 void *key;
446 struct udevice *dev;
447 int rc;
448
449 rc = get_tpm(&dev);
450 if (rc)
451 return rc;
452
453 if (argc < 5)
454 return CMD_RET_USAGE;
455
456 parent_handle = simple_strtoul(argv[1], NULL, 0);
457 key = (void *)simple_strtoul(argv[2], NULL, 0);
458 key_len = simple_strtoul(argv[3], NULL, 0);
459 if (strlen(argv[4]) != 2 * DIGEST_LENGTH)
460 return CMD_RET_FAILURE;
461 parse_byte_string(argv[4], usage_auth, NULL);
462
463 err = tpm_load_key2_oiap(dev, parent_handle, key, key_len, usage_auth,
464 &key_handle);
465 if (!err)
466 printf("Key handle is 0x%x\n", key_handle);
467
468 return report_return_code(err);
469 }
470
do_tpm_get_pub_key_oiap(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])471 static int do_tpm_get_pub_key_oiap(cmd_tbl_t *cmdtp, int flag, int argc,
472 char * const argv[])
473 {
474 u32 key_handle, err;
475 u8 usage_auth[DIGEST_LENGTH];
476 u8 pub_key_buffer[TPM_PUBKEY_MAX_LENGTH];
477 size_t pub_key_len = sizeof(pub_key_buffer);
478 struct udevice *dev;
479 int rc;
480
481 rc = get_tpm(&dev);
482 if (rc)
483 return rc;
484
485 if (argc < 3)
486 return CMD_RET_USAGE;
487
488 key_handle = simple_strtoul(argv[1], NULL, 0);
489 if (strlen(argv[2]) != 2 * DIGEST_LENGTH)
490 return CMD_RET_FAILURE;
491 parse_byte_string(argv[2], usage_auth, NULL);
492
493 err = tpm_get_pub_key_oiap(dev, key_handle, usage_auth, pub_key_buffer,
494 &pub_key_len);
495 if (!err) {
496 printf("dump of received pub key structure:\n");
497 print_byte_string(pub_key_buffer, pub_key_len);
498 }
499 return report_return_code(err);
500 }
501
TPM_COMMAND_NO_ARG(tpm_end_oiap)502 TPM_COMMAND_NO_ARG(tpm_end_oiap)
503
504 #endif /* CONFIG_TPM_AUTH_SESSIONS */
505
506 #ifdef CONFIG_TPM_FLUSH_RESOURCES
507 static int do_tpm_flush(cmd_tbl_t *cmdtp, int flag, int argc,
508 char * const argv[])
509 {
510 struct udevice *dev;
511 int type = 0;
512 int rc;
513
514 rc = get_tpm(&dev);
515 if (rc)
516 return rc;
517
518 if (argc != 3)
519 return CMD_RET_USAGE;
520
521 if (!strcasecmp(argv[1], "key"))
522 type = TPM_RT_KEY;
523 else if (!strcasecmp(argv[1], "auth"))
524 type = TPM_RT_AUTH;
525 else if (!strcasecmp(argv[1], "hash"))
526 type = TPM_RT_HASH;
527 else if (!strcasecmp(argv[1], "trans"))
528 type = TPM_RT_TRANS;
529 else if (!strcasecmp(argv[1], "context"))
530 type = TPM_RT_CONTEXT;
531 else if (!strcasecmp(argv[1], "counter"))
532 type = TPM_RT_COUNTER;
533 else if (!strcasecmp(argv[1], "delegate"))
534 type = TPM_RT_DELEGATE;
535 else if (!strcasecmp(argv[1], "daa_tpm"))
536 type = TPM_RT_DAA_TPM;
537 else if (!strcasecmp(argv[1], "daa_v0"))
538 type = TPM_RT_DAA_V0;
539 else if (!strcasecmp(argv[1], "daa_v1"))
540 type = TPM_RT_DAA_V1;
541
542 if (!type) {
543 printf("Resource type %s unknown.\n", argv[1]);
544 return -1;
545 }
546
547 if (!strcasecmp(argv[2], "all")) {
548 u16 res_count;
549 u8 buf[288];
550 u8 *ptr;
551 int err;
552 uint i;
553
554 /* fetch list of already loaded resources in the TPM */
555 err = tpm_get_capability(dev, TPM_CAP_HANDLE, type, buf,
556 sizeof(buf));
557 if (err) {
558 printf("tpm_get_capability returned error %d.\n", err);
559 return -1;
560 }
561 res_count = get_unaligned_be16(buf);
562 ptr = buf + 2;
563 for (i = 0; i < res_count; ++i, ptr += 4)
564 tpm_flush_specific(dev, get_unaligned_be32(ptr), type);
565 } else {
566 u32 handle = simple_strtoul(argv[2], NULL, 0);
567
568 if (!handle) {
569 printf("Illegal resource handle %s\n", argv[2]);
570 return -1;
571 }
572 tpm_flush_specific(dev, cpu_to_be32(handle), type);
573 }
574
575 return 0;
576 }
577 #endif /* CONFIG_TPM_FLUSH_RESOURCES */
578
579 #ifdef CONFIG_TPM_LIST_RESOURCES
do_tpm_list(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])580 static int do_tpm_list(cmd_tbl_t *cmdtp, int flag, int argc,
581 char * const argv[])
582 {
583 int type = 0;
584 u16 res_count;
585 u8 buf[288];
586 u8 *ptr;
587 int err;
588 uint i;
589
590 if (argc != 2)
591 return CMD_RET_USAGE;
592
593 if (!strcasecmp(argv[1], "key"))
594 type = TPM_RT_KEY;
595 else if (!strcasecmp(argv[1], "auth"))
596 type = TPM_RT_AUTH;
597 else if (!strcasecmp(argv[1], "hash"))
598 type = TPM_RT_HASH;
599 else if (!strcasecmp(argv[1], "trans"))
600 type = TPM_RT_TRANS;
601 else if (!strcasecmp(argv[1], "context"))
602 type = TPM_RT_CONTEXT;
603 else if (!strcasecmp(argv[1], "counter"))
604 type = TPM_RT_COUNTER;
605 else if (!strcasecmp(argv[1], "delegate"))
606 type = TPM_RT_DELEGATE;
607 else if (!strcasecmp(argv[1], "daa_tpm"))
608 type = TPM_RT_DAA_TPM;
609 else if (!strcasecmp(argv[1], "daa_v0"))
610 type = TPM_RT_DAA_V0;
611 else if (!strcasecmp(argv[1], "daa_v1"))
612 type = TPM_RT_DAA_V1;
613
614 if (!type) {
615 printf("Resource type %s unknown.\n", argv[1]);
616 return -1;
617 }
618
619 /* fetch list of already loaded resources in the TPM */
620 err = tpm_get_capability(TPM_CAP_HANDLE, type, buf,
621 sizeof(buf));
622 if (err) {
623 printf("tpm_get_capability returned error %d.\n", err);
624 return -1;
625 }
626 res_count = get_unaligned_be16(buf);
627 ptr = buf + 2;
628
629 printf("Resources of type %s (%02x):\n", argv[1], type);
630 if (!res_count) {
631 puts("None\n");
632 } else {
633 for (i = 0; i < res_count; ++i, ptr += 4)
634 printf("Index %d: %08x\n", i, get_unaligned_be32(ptr));
635 }
636
637 return 0;
638 }
639 #endif /* CONFIG_TPM_LIST_RESOURCES */
640
641 TPM_COMMAND_NO_ARG(tpm_self_test_full)
642 TPM_COMMAND_NO_ARG(tpm_continue_self_test)
643 TPM_COMMAND_NO_ARG(tpm_force_clear)
644 TPM_COMMAND_NO_ARG(tpm_physical_enable)
645 TPM_COMMAND_NO_ARG(tpm_physical_disable)
646
647 static cmd_tbl_t tpm1_commands[] = {
648 U_BOOT_CMD_MKENT(info, 0, 1, do_tpm_info, "", ""),
649 U_BOOT_CMD_MKENT(init, 0, 1, do_tpm_init, "", ""),
650 U_BOOT_CMD_MKENT(startup, 0, 1,
651 do_tpm_startup, "", ""),
652 U_BOOT_CMD_MKENT(self_test_full, 0, 1,
653 do_tpm_self_test_full, "", ""),
654 U_BOOT_CMD_MKENT(continue_self_test, 0, 1,
655 do_tpm_continue_self_test, "", ""),
656 U_BOOT_CMD_MKENT(force_clear, 0, 1,
657 do_tpm_force_clear, "", ""),
658 U_BOOT_CMD_MKENT(physical_enable, 0, 1,
659 do_tpm_physical_enable, "", ""),
660 U_BOOT_CMD_MKENT(physical_disable, 0, 1,
661 do_tpm_physical_disable, "", ""),
662 U_BOOT_CMD_MKENT(nv_define_space, 0, 1,
663 do_tpm_nv_define_space, "", ""),
664 U_BOOT_CMD_MKENT(nv_read_value, 0, 1,
665 do_tpm_nv_read_value, "", ""),
666 U_BOOT_CMD_MKENT(nv_write_value, 0, 1,
667 do_tpm_nv_write_value, "", ""),
668 U_BOOT_CMD_MKENT(extend, 0, 1,
669 do_tpm_extend, "", ""),
670 U_BOOT_CMD_MKENT(pcr_read, 0, 1,
671 do_tpm_pcr_read, "", ""),
672 U_BOOT_CMD_MKENT(tsc_physical_presence, 0, 1,
673 do_tpm_tsc_physical_presence, "", ""),
674 U_BOOT_CMD_MKENT(read_pubek, 0, 1,
675 do_tpm_read_pubek, "", ""),
676 U_BOOT_CMD_MKENT(physical_set_deactivated, 0, 1,
677 do_tpm_physical_set_deactivated, "", ""),
678 U_BOOT_CMD_MKENT(get_capability, 0, 1,
679 do_tpm_get_capability, "", ""),
680 U_BOOT_CMD_MKENT(raw_transfer, 0, 1,
681 do_tpm_raw_transfer, "", ""),
682 U_BOOT_CMD_MKENT(nv_define, 0, 1,
683 do_tpm_nv_define, "", ""),
684 U_BOOT_CMD_MKENT(nv_read, 0, 1,
685 do_tpm_nv_read, "", ""),
686 U_BOOT_CMD_MKENT(nv_write, 0, 1,
687 do_tpm_nv_write, "", ""),
688 #ifdef CONFIG_TPM_AUTH_SESSIONS
689 U_BOOT_CMD_MKENT(oiap, 0, 1,
690 do_tpm_oiap, "", ""),
691 U_BOOT_CMD_MKENT(end_oiap, 0, 1,
692 do_tpm_end_oiap, "", ""),
693 U_BOOT_CMD_MKENT(load_key2_oiap, 0, 1,
694 do_tpm_load_key2_oiap, "", ""),
695 #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
696 U_BOOT_CMD_MKENT(load_key_by_sha1, 0, 1,
697 do_tpm_load_key_by_sha1, "", ""),
698 #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
699 U_BOOT_CMD_MKENT(get_pub_key_oiap, 0, 1,
700 do_tpm_get_pub_key_oiap, "", ""),
701 #endif /* CONFIG_TPM_AUTH_SESSIONS */
702 #ifdef CONFIG_TPM_FLUSH_RESOURCES
703 U_BOOT_CMD_MKENT(flush, 0, 1,
704 do_tpm_flush, "", ""),
705 #endif /* CONFIG_TPM_FLUSH_RESOURCES */
706 #ifdef CONFIG_TPM_LIST_RESOURCES
707 U_BOOT_CMD_MKENT(list, 0, 1,
708 do_tpm_list, "", ""),
709 #endif /* CONFIG_TPM_LIST_RESOURCES */
710 };
711
get_tpm1_commands(unsigned int * size)712 cmd_tbl_t *get_tpm1_commands(unsigned int *size)
713 {
714 *size = ARRAY_SIZE(tpm1_commands);
715
716 return tpm1_commands;
717 }
718
719 U_BOOT_CMD(tpm, CONFIG_SYS_MAXARGS, 1, do_tpm,
720 "Issue a TPMv1.x command",
721 "cmd args...\n"
722 " - Issue TPM command <cmd> with arguments <args...>.\n"
723 "Admin Startup and State Commands:\n"
724 " info - Show information about the TPM\n"
725 " init\n"
726 " - Put TPM into a state where it waits for 'startup' command.\n"
727 " startup mode\n"
728 " - Issue TPM_Starup command. <mode> is one of TPM_ST_CLEAR,\n"
729 " TPM_ST_STATE, and TPM_ST_DEACTIVATED.\n"
730 "Admin Testing Commands:\n"
731 " self_test_full\n"
732 " - Test all of the TPM capabilities.\n"
733 " continue_self_test\n"
734 " - Inform TPM that it should complete the self-test.\n"
735 "Admin Opt-in Commands:\n"
736 " physical_enable\n"
737 " - Set the PERMANENT disable flag to FALSE using physical presence as\n"
738 " authorization.\n"
739 " physical_disable\n"
740 " - Set the PERMANENT disable flag to TRUE using physical presence as\n"
741 " authorization.\n"
742 " physical_set_deactivated 0|1\n"
743 " - Set deactivated flag.\n"
744 "Admin Ownership Commands:\n"
745 " force_clear\n"
746 " - Issue TPM_ForceClear command.\n"
747 " tsc_physical_presence flags\n"
748 " - Set TPM device's Physical Presence flags to <flags>.\n"
749 "The Capability Commands:\n"
750 " get_capability cap_area sub_cap addr count\n"
751 " - Read <count> bytes of TPM capability indexed by <cap_area> and\n"
752 " <sub_cap> to memory address <addr>.\n"
753 #if defined(CONFIG_TPM_FLUSH_RESOURCES) || defined(CONFIG_TPM_LIST_RESOURCES)
754 "Resource management functions\n"
755 #endif
756 #ifdef CONFIG_TPM_FLUSH_RESOURCES
757 " flush resource_type id\n"
758 " - flushes a resource of type <resource_type> (may be one of key, auth,\n"
759 " hash, trans, context, counter, delegate, daa_tpm, daa_v0, daa_v1),\n"
760 " and id <id> from the TPM. Use an <id> of \"all\" to flush all\n"
761 " resources of that type.\n"
762 #endif /* CONFIG_TPM_FLUSH_RESOURCES */
763 #ifdef CONFIG_TPM_LIST_RESOURCES
764 " list resource_type\n"
765 " - lists resources of type <resource_type> (may be one of key, auth,\n"
766 " hash, trans, context, counter, delegate, daa_tpm, daa_v0, daa_v1),\n"
767 " contained in the TPM.\n"
768 #endif /* CONFIG_TPM_LIST_RESOURCES */
769 #ifdef CONFIG_TPM_AUTH_SESSIONS
770 "Storage functions\n"
771 " loadkey2_oiap parent_handle key_addr key_len usage_auth\n"
772 " - loads a key data from memory address <key_addr>, <key_len> bytes\n"
773 " into TPM using the parent key <parent_handle> with authorization\n"
774 " <usage_auth> (20 bytes hex string).\n"
775 #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
776 " load_key_by_sha1 parent_hash key_addr key_len usage_auth\n"
777 " - loads a key data from memory address <key_addr>, <key_len> bytes\n"
778 " into TPM using the parent hash <parent_hash> (20 bytes hex string)\n"
779 " with authorization <usage_auth> (20 bytes hex string).\n"
780 #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
781 " get_pub_key_oiap key_handle usage_auth\n"
782 " - get the public key portion of a loaded key <key_handle> using\n"
783 " authorization <usage auth> (20 bytes hex string)\n"
784 #endif /* CONFIG_TPM_AUTH_SESSIONS */
785 "Endorsement Key Handling Commands:\n"
786 " read_pubek addr count\n"
787 " - Read <count> bytes of the public endorsement key to memory\n"
788 " address <addr>\n"
789 "Integrity Collection and Reporting Commands:\n"
790 " extend index digest_hex_string\n"
791 " - Add a new measurement to a PCR. Update PCR <index> with the 20-bytes\n"
792 " <digest_hex_string>\n"
793 " pcr_read index addr count\n"
794 " - Read <count> bytes from PCR <index> to memory address <addr>.\n"
795 #ifdef CONFIG_TPM_AUTH_SESSIONS
796 "Authorization Sessions\n"
797 " oiap\n"
798 " - setup an OIAP session\n"
799 " end_oiap\n"
800 " - terminates an active OIAP session\n"
801 #endif /* CONFIG_TPM_AUTH_SESSIONS */
802 "Non-volatile Storage Commands:\n"
803 " nv_define_space index permission size\n"
804 " - Establish a space at index <index> with <permission> of <size> bytes.\n"
805 " nv_read_value index addr count\n"
806 " - Read <count> bytes from space <index> to memory address <addr>.\n"
807 " nv_write_value index addr count\n"
808 " - Write <count> bytes from memory address <addr> to space <index>.\n"
809 "Miscellaneous helper functions:\n"
810 " raw_transfer byte_string\n"
811 " - Send a byte string <byte_string> to TPM and print the response.\n"
812 " Non-volatile storage helper functions:\n"
813 " These helper functions treat a non-volatile space as a non-padded\n"
814 " sequence of integer values. These integer values are defined by a type\n"
815 " string, which is a text string of 'bwd' characters: 'b' means a 8-bit\n"
816 " value, 'w' 16-bit value, 'd' 32-bit value. All helper functions take\n"
817 " a type string as their first argument.\n"
818 " nv_define type_string index perm\n"
819 " - Define a space <index> with permission <perm>.\n"
820 " nv_read types_string index vars...\n"
821 " - Read from space <index> to environment variables <vars...>.\n"
822 " nv_write types_string index values...\n"
823 " - Write to space <index> from values <values...>.\n"
824 );
825