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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