]>
Commit | Line | Data |
---|---|---|
576fb1ed | 1 | /* |
8732b070 | 2 | * Copyright (c) 2013 The Chromium OS Authors. |
576fb1ed | 3 | * |
1a459660 | 4 | * SPDX-License-Identifier: GPL-2.0+ |
576fb1ed VB |
5 | */ |
6 | ||
7 | #include <common.h> | |
8 | #include <command.h> | |
8732b070 | 9 | #include <malloc.h> |
576fb1ed | 10 | #include <tpm.h> |
8732b070 CC |
11 | #include <asm/unaligned.h> |
12 | #include <linux/string.h> | |
576fb1ed | 13 | |
be6c1529 RP |
14 | /* Useful constants */ |
15 | enum { | |
16 | DIGEST_LENGTH = 20, | |
17 | /* max lengths, valid for RSA keys <= 2048 bits */ | |
18 | TPM_PUBKEY_MAX_LENGTH = 288, | |
19 | }; | |
20 | ||
8732b070 CC |
21 | /** |
22 | * Print a byte string in hexdecimal format, 16-bytes per line. | |
23 | * | |
24 | * @param data byte string to be printed | |
25 | * @param count number of bytes to be printed | |
26 | */ | |
27 | static void print_byte_string(uint8_t *data, size_t count) | |
28 | { | |
29 | int i, print_newline = 0; | |
576fb1ed | 30 | |
8732b070 CC |
31 | for (i = 0; i < count; i++) { |
32 | printf(" %02x", data[i]); | |
33 | print_newline = (i % 16 == 15); | |
34 | if (print_newline) | |
35 | putc('\n'); | |
36 | } | |
37 | /* Avoid duplicated newline at the end */ | |
38 | if (!print_newline) | |
39 | putc('\n'); | |
40 | } | |
41 | ||
42 | /** | |
43 | * Convert a text string of hexdecimal values into a byte string. | |
576fb1ed | 44 | * |
8732b070 CC |
45 | * @param bytes text string of hexdecimal values with no space |
46 | * between them | |
47 | * @param data output buffer for byte string. The caller has to make | |
48 | * sure it is large enough for storing the output. If | |
49 | * NULL is passed, a large enough buffer will be allocated, | |
50 | * and the caller must free it. | |
51 | * @param count_ptr output variable for the length of byte string | |
52 | * @return pointer to output buffer | |
576fb1ed | 53 | */ |
8732b070 CC |
54 | static void *parse_byte_string(char *bytes, uint8_t *data, size_t *count_ptr) |
55 | { | |
56 | char byte[3]; | |
57 | size_t count, length; | |
58 | int i; | |
59 | ||
60 | length = strlen(bytes); | |
61 | count = length / 2; | |
62 | ||
63 | if (!data) | |
64 | data = malloc(count); | |
65 | if (!data) | |
66 | return NULL; | |
67 | ||
68 | byte[2] = '\0'; | |
69 | for (i = 0; i < length; i += 2) { | |
70 | byte[0] = bytes[i]; | |
71 | byte[1] = bytes[i + 1]; | |
72 | data[i / 2] = (uint8_t)simple_strtoul(byte, NULL, 16); | |
576fb1ed VB |
73 | } |
74 | ||
8732b070 CC |
75 | if (count_ptr) |
76 | *count_ptr = count; | |
77 | ||
78 | return data; | |
79 | } | |
80 | ||
81 | /** | |
82 | * Convert TPM command return code to U-Boot command error codes. | |
83 | * | |
84 | * @param return_code TPM command return code | |
85 | * @return value of enum command_ret_t | |
86 | */ | |
87 | static int convert_return_code(uint32_t return_code) | |
88 | { | |
89 | if (return_code) | |
90 | return CMD_RET_FAILURE; | |
91 | else | |
92 | return CMD_RET_SUCCESS; | |
93 | } | |
94 | ||
95 | /** | |
96 | * Return number of values defined by a type string. | |
97 | * | |
98 | * @param type_str type string | |
99 | * @return number of values of type string | |
100 | */ | |
101 | static int type_string_get_num_values(const char *type_str) | |
102 | { | |
103 | return strlen(type_str); | |
104 | } | |
105 | ||
106 | /** | |
107 | * Return total size of values defined by a type string. | |
108 | * | |
109 | * @param type_str type string | |
110 | * @return total size of values of type string, or 0 if type string | |
111 | * contains illegal type character. | |
112 | */ | |
113 | static size_t type_string_get_space_size(const char *type_str) | |
114 | { | |
115 | size_t size; | |
116 | ||
117 | for (size = 0; *type_str; type_str++) { | |
118 | switch (*type_str) { | |
119 | case 'b': | |
120 | size += 1; | |
121 | break; | |
122 | case 'w': | |
123 | size += 2; | |
124 | break; | |
125 | case 'd': | |
126 | size += 4; | |
127 | break; | |
128 | default: | |
129 | return 0; | |
130 | } | |
576fb1ed | 131 | } |
8732b070 CC |
132 | |
133 | return size; | |
576fb1ed VB |
134 | } |
135 | ||
8732b070 CC |
136 | /** |
137 | * Allocate a buffer large enough to hold values defined by a type | |
138 | * string. The caller has to free the buffer. | |
139 | * | |
140 | * @param type_str type string | |
141 | * @param count pointer for storing size of buffer | |
142 | * @return pointer to buffer or NULL on error | |
143 | */ | |
144 | static void *type_string_alloc(const char *type_str, uint32_t *count) | |
145 | { | |
146 | void *data; | |
147 | size_t size; | |
148 | ||
149 | size = type_string_get_space_size(type_str); | |
150 | if (!size) | |
151 | return NULL; | |
152 | data = malloc(size); | |
153 | if (data) | |
154 | *count = size; | |
eea3f4d3 | 155 | |
8732b070 CC |
156 | return data; |
157 | } | |
158 | ||
159 | /** | |
160 | * Pack values defined by a type string into a buffer. The buffer must have | |
161 | * large enough space. | |
162 | * | |
163 | * @param type_str type string | |
164 | * @param values text strings of values to be packed | |
165 | * @param data output buffer of values | |
166 | * @return 0 on success, non-0 on error | |
167 | */ | |
168 | static int type_string_pack(const char *type_str, char * const values[], | |
169 | uint8_t *data) | |
576fb1ed | 170 | { |
8732b070 CC |
171 | size_t offset; |
172 | uint32_t value; | |
173 | ||
174 | for (offset = 0; *type_str; type_str++, values++) { | |
175 | value = simple_strtoul(values[0], NULL, 0); | |
176 | switch (*type_str) { | |
177 | case 'b': | |
178 | data[offset] = value; | |
179 | offset += 1; | |
180 | break; | |
181 | case 'w': | |
182 | put_unaligned_be16(value, data + offset); | |
183 | offset += 2; | |
184 | break; | |
185 | case 'd': | |
186 | put_unaligned_be32(value, data + offset); | |
187 | offset += 4; | |
eea3f4d3 | 188 | break; |
8732b070 CC |
189 | default: |
190 | return -1; | |
eea3f4d3 | 191 | } |
8732b070 CC |
192 | } |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
197 | /** | |
198 | * Read values defined by a type string from a buffer, and write these values | |
199 | * to environment variables. | |
200 | * | |
201 | * @param type_str type string | |
202 | * @param data input buffer of values | |
203 | * @param vars names of environment variables | |
204 | * @return 0 on success, non-0 on error | |
205 | */ | |
206 | static int type_string_write_vars(const char *type_str, uint8_t *data, | |
207 | char * const vars[]) | |
208 | { | |
209 | size_t offset; | |
210 | uint32_t value; | |
211 | ||
212 | for (offset = 0; *type_str; type_str++, vars++) { | |
213 | switch (*type_str) { | |
214 | case 'b': | |
215 | value = data[offset]; | |
216 | offset += 1; | |
217 | break; | |
218 | case 'w': | |
219 | value = get_unaligned_be16(data + offset); | |
220 | offset += 2; | |
eea3f4d3 | 221 | break; |
8732b070 CC |
222 | case 'd': |
223 | value = get_unaligned_be32(data + offset); | |
224 | offset += 4; | |
225 | break; | |
226 | default: | |
227 | return -1; | |
eea3f4d3 | 228 | } |
8732b070 CC |
229 | if (setenv_ulong(*vars, value)) |
230 | return -1; | |
eea3f4d3 | 231 | } |
8732b070 CC |
232 | |
233 | return 0; | |
eea3f4d3 | 234 | } |
576fb1ed | 235 | |
8732b070 CC |
236 | static int do_tpm_startup(cmd_tbl_t *cmdtp, int flag, |
237 | int argc, char * const argv[]) | |
238 | { | |
239 | enum tpm_startup_type mode; | |
eea3f4d3 | 240 | |
8732b070 CC |
241 | if (argc != 2) |
242 | return CMD_RET_USAGE; | |
243 | if (!strcasecmp("TPM_ST_CLEAR", argv[1])) { | |
244 | mode = TPM_ST_CLEAR; | |
245 | } else if (!strcasecmp("TPM_ST_STATE", argv[1])) { | |
246 | mode = TPM_ST_STATE; | |
247 | } else if (!strcasecmp("TPM_ST_DEACTIVATED", argv[1])) { | |
248 | mode = TPM_ST_DEACTIVATED; | |
249 | } else { | |
250 | printf("Couldn't recognize mode string: %s\n", argv[1]); | |
251 | return CMD_RET_FAILURE; | |
252 | } | |
253 | ||
254 | return convert_return_code(tpm_startup(mode)); | |
255 | } | |
256 | ||
257 | static int do_tpm_nv_define_space(cmd_tbl_t *cmdtp, int flag, | |
258 | int argc, char * const argv[]) | |
259 | { | |
260 | uint32_t index, perm, size; | |
261 | ||
262 | if (argc != 4) | |
263 | return CMD_RET_USAGE; | |
264 | index = simple_strtoul(argv[1], NULL, 0); | |
265 | perm = simple_strtoul(argv[2], NULL, 0); | |
266 | size = simple_strtoul(argv[3], NULL, 0); | |
267 | ||
268 | return convert_return_code(tpm_nv_define_space(index, perm, size)); | |
269 | } | |
eea3f4d3 | 270 | |
8732b070 CC |
271 | static int do_tpm_nv_read_value(cmd_tbl_t *cmdtp, int flag, |
272 | int argc, char * const argv[]) | |
eea3f4d3 | 273 | { |
8732b070 CC |
274 | uint32_t index, count, rc; |
275 | void *data; | |
eea3f4d3 | 276 | |
8732b070 CC |
277 | if (argc != 4) |
278 | return CMD_RET_USAGE; | |
279 | index = simple_strtoul(argv[1], NULL, 0); | |
280 | data = (void *)simple_strtoul(argv[2], NULL, 0); | |
281 | count = simple_strtoul(argv[3], NULL, 0); | |
282 | ||
283 | rc = tpm_nv_read_value(index, data, count); | |
284 | if (!rc) { | |
285 | puts("area content:\n"); | |
286 | print_byte_string(data, count); | |
576fb1ed VB |
287 | } |
288 | ||
8732b070 CC |
289 | return convert_return_code(rc); |
290 | } | |
291 | ||
292 | static int do_tpm_nv_write_value(cmd_tbl_t *cmdtp, int flag, | |
293 | int argc, char * const argv[]) | |
294 | { | |
295 | uint32_t index, rc; | |
296 | size_t count; | |
297 | void *data; | |
298 | ||
299 | if (argc != 3) | |
300 | return CMD_RET_USAGE; | |
301 | index = simple_strtoul(argv[1], NULL, 0); | |
302 | data = parse_byte_string(argv[2], NULL, &count); | |
303 | if (!data) { | |
304 | printf("Couldn't parse byte string %s\n", argv[2]); | |
305 | return CMD_RET_FAILURE; | |
eea3f4d3 LS |
306 | } |
307 | ||
8732b070 CC |
308 | rc = tpm_nv_write_value(index, data, count); |
309 | free(data); | |
310 | ||
311 | return convert_return_code(rc); | |
312 | } | |
313 | ||
314 | static int do_tpm_extend(cmd_tbl_t *cmdtp, int flag, | |
315 | int argc, char * const argv[]) | |
316 | { | |
317 | uint32_t index, rc; | |
318 | uint8_t in_digest[20], out_digest[20]; | |
319 | ||
320 | if (argc != 3) | |
321 | return CMD_RET_USAGE; | |
322 | index = simple_strtoul(argv[1], NULL, 0); | |
323 | if (!parse_byte_string(argv[2], in_digest, NULL)) { | |
324 | printf("Couldn't parse byte string %s\n", argv[2]); | |
325 | return CMD_RET_FAILURE; | |
576fb1ed VB |
326 | } |
327 | ||
8732b070 CC |
328 | rc = tpm_extend(index, in_digest, out_digest); |
329 | if (!rc) { | |
330 | puts("PCR value after execution of the command:\n"); | |
331 | print_byte_string(out_digest, sizeof(out_digest)); | |
576fb1ed VB |
332 | } |
333 | ||
8732b070 CC |
334 | return convert_return_code(rc); |
335 | } | |
336 | ||
337 | static int do_tpm_pcr_read(cmd_tbl_t *cmdtp, int flag, | |
338 | int argc, char * const argv[]) | |
339 | { | |
340 | uint32_t index, count, rc; | |
341 | void *data; | |
342 | ||
343 | if (argc != 4) | |
344 | return CMD_RET_USAGE; | |
345 | index = simple_strtoul(argv[1], NULL, 0); | |
346 | data = (void *)simple_strtoul(argv[2], NULL, 0); | |
347 | count = simple_strtoul(argv[3], NULL, 0); | |
576fb1ed | 348 | |
8732b070 CC |
349 | rc = tpm_pcr_read(index, data, count); |
350 | if (!rc) { | |
351 | puts("Named PCR content:\n"); | |
352 | print_byte_string(data, count); | |
576fb1ed VB |
353 | } |
354 | ||
8732b070 | 355 | return convert_return_code(rc); |
576fb1ed VB |
356 | } |
357 | ||
8732b070 CC |
358 | static int do_tpm_tsc_physical_presence(cmd_tbl_t *cmdtp, int flag, |
359 | int argc, char * const argv[]) | |
360 | { | |
361 | uint16_t presence; | |
362 | ||
363 | if (argc != 2) | |
364 | return CMD_RET_USAGE; | |
365 | presence = (uint16_t)simple_strtoul(argv[1], NULL, 0); | |
eea3f4d3 | 366 | |
8732b070 CC |
367 | return convert_return_code(tpm_tsc_physical_presence(presence)); |
368 | } | |
369 | ||
370 | static int do_tpm_read_pubek(cmd_tbl_t *cmdtp, int flag, | |
371 | int argc, char * const argv[]) | |
eea3f4d3 | 372 | { |
8732b070 CC |
373 | uint32_t count, rc; |
374 | void *data; | |
375 | ||
376 | if (argc != 3) | |
377 | return CMD_RET_USAGE; | |
378 | data = (void *)simple_strtoul(argv[1], NULL, 0); | |
379 | count = simple_strtoul(argv[2], NULL, 0); | |
380 | ||
381 | rc = tpm_read_pubek(data, count); | |
382 | if (!rc) { | |
383 | puts("pubek value:\n"); | |
384 | print_byte_string(data, count); | |
385 | } | |
386 | ||
387 | return convert_return_code(rc); | |
eea3f4d3 LS |
388 | } |
389 | ||
8732b070 CC |
390 | static int do_tpm_physical_set_deactivated(cmd_tbl_t *cmdtp, int flag, |
391 | int argc, char * const argv[]) | |
392 | { | |
393 | uint8_t state; | |
394 | ||
395 | if (argc != 2) | |
396 | return CMD_RET_USAGE; | |
397 | state = (uint8_t)simple_strtoul(argv[1], NULL, 0); | |
eea3f4d3 | 398 | |
8732b070 CC |
399 | return convert_return_code(tpm_physical_set_deactivated(state)); |
400 | } | |
401 | ||
402 | static int do_tpm_get_capability(cmd_tbl_t *cmdtp, int flag, | |
403 | int argc, char * const argv[]) | |
404 | { | |
405 | uint32_t cap_area, sub_cap, rc; | |
406 | void *cap; | |
407 | size_t count; | |
408 | ||
409 | if (argc != 5) | |
410 | return CMD_RET_USAGE; | |
411 | cap_area = simple_strtoul(argv[1], NULL, 0); | |
412 | sub_cap = simple_strtoul(argv[2], NULL, 0); | |
413 | cap = (void *)simple_strtoul(argv[3], NULL, 0); | |
414 | count = simple_strtoul(argv[4], NULL, 0); | |
415 | ||
416 | rc = tpm_get_capability(cap_area, sub_cap, cap, count); | |
417 | if (!rc) { | |
418 | puts("capability information:\n"); | |
419 | print_byte_string(cap, count); | |
420 | } | |
421 | ||
422 | return convert_return_code(rc); | |
423 | } | |
eea3f4d3 | 424 | |
8732b070 CC |
425 | #define TPM_COMMAND_NO_ARG(cmd) \ |
426 | static int do_##cmd(cmd_tbl_t *cmdtp, int flag, \ | |
427 | int argc, char * const argv[]) \ | |
428 | { \ | |
429 | if (argc != 1) \ | |
430 | return CMD_RET_USAGE; \ | |
431 | return convert_return_code(cmd()); \ | |
432 | } | |
433 | ||
434 | TPM_COMMAND_NO_ARG(tpm_init) | |
435 | TPM_COMMAND_NO_ARG(tpm_self_test_full) | |
436 | TPM_COMMAND_NO_ARG(tpm_continue_self_test) | |
437 | TPM_COMMAND_NO_ARG(tpm_force_clear) | |
438 | TPM_COMMAND_NO_ARG(tpm_physical_enable) | |
439 | TPM_COMMAND_NO_ARG(tpm_physical_disable) | |
440 | ||
441 | static int do_tpm_raw_transfer(cmd_tbl_t *cmdtp, int flag, | |
442 | int argc, char * const argv[]) | |
443 | { | |
444 | void *command; | |
445 | uint8_t response[1024]; | |
446 | size_t count, response_length = sizeof(response); | |
447 | uint32_t rc; | |
448 | ||
449 | command = parse_byte_string(argv[1], NULL, &count); | |
450 | if (!command) { | |
451 | printf("Couldn't parse byte string %s\n", argv[1]); | |
452 | return CMD_RET_FAILURE; | |
453 | } | |
454 | ||
455 | rc = tis_sendrecv(command, count, response, &response_length); | |
456 | free(command); | |
457 | if (!rc) { | |
458 | puts("tpm response:\n"); | |
459 | print_byte_string(response, response_length); | |
460 | } | |
461 | ||
462 | return convert_return_code(rc); | |
463 | } | |
464 | ||
465 | static int do_tpm_nv_define(cmd_tbl_t *cmdtp, int flag, | |
466 | int argc, char * const argv[]) | |
467 | { | |
468 | uint32_t index, perm, size; | |
469 | ||
470 | if (argc != 4) | |
471 | return CMD_RET_USAGE; | |
472 | size = type_string_get_space_size(argv[1]); | |
473 | if (!size) { | |
474 | printf("Couldn't parse arguments\n"); | |
475 | return CMD_RET_USAGE; | |
476 | } | |
477 | index = simple_strtoul(argv[2], NULL, 0); | |
478 | perm = simple_strtoul(argv[3], NULL, 0); | |
479 | ||
480 | return convert_return_code(tpm_nv_define_space(index, perm, size)); | |
481 | } | |
482 | ||
483 | static int do_tpm_nv_read(cmd_tbl_t *cmdtp, int flag, | |
484 | int argc, char * const argv[]) | |
eea3f4d3 | 485 | { |
8732b070 CC |
486 | uint32_t index, count, err; |
487 | void *data; | |
eea3f4d3 | 488 | |
8732b070 CC |
489 | if (argc < 3) |
490 | return CMD_RET_USAGE; | |
491 | if (argc != 3 + type_string_get_num_values(argv[1])) | |
492 | return CMD_RET_USAGE; | |
493 | index = simple_strtoul(argv[2], NULL, 0); | |
494 | data = type_string_alloc(argv[1], &count); | |
495 | if (!data) { | |
496 | printf("Couldn't parse arguments\n"); | |
497 | return CMD_RET_USAGE; | |
eea3f4d3 LS |
498 | } |
499 | ||
8732b070 CC |
500 | err = tpm_nv_read_value(index, data, count); |
501 | if (!err) { | |
502 | if (type_string_write_vars(argv[1], data, argv + 3)) { | |
503 | printf("Couldn't write to variables\n"); | |
504 | err = ~0; | |
505 | } | |
eea3f4d3 | 506 | } |
8732b070 CC |
507 | free(data); |
508 | ||
509 | return convert_return_code(err); | |
510 | } | |
511 | ||
512 | static int do_tpm_nv_write(cmd_tbl_t *cmdtp, int flag, | |
513 | int argc, char * const argv[]) | |
514 | { | |
515 | uint32_t index, count, err; | |
516 | void *data; | |
517 | ||
518 | if (argc < 3) | |
519 | return CMD_RET_USAGE; | |
520 | if (argc != 3 + type_string_get_num_values(argv[1])) | |
521 | return CMD_RET_USAGE; | |
522 | index = simple_strtoul(argv[2], NULL, 0); | |
523 | data = type_string_alloc(argv[1], &count); | |
524 | if (!data) { | |
525 | printf("Couldn't parse arguments\n"); | |
526 | return CMD_RET_USAGE; | |
527 | } | |
528 | if (type_string_pack(argv[1], argv + 3, data)) { | |
529 | printf("Couldn't parse arguments\n"); | |
530 | free(data); | |
531 | return CMD_RET_USAGE; | |
532 | } | |
533 | ||
534 | err = tpm_nv_write_value(index, data, count); | |
535 | free(data); | |
536 | ||
537 | return convert_return_code(err); | |
538 | } | |
539 | ||
be6c1529 RP |
540 | #ifdef CONFIG_TPM_AUTH_SESSIONS |
541 | ||
542 | static int do_tpm_oiap(cmd_tbl_t *cmdtp, int flag, | |
543 | int argc, char * const argv[]) | |
544 | { | |
545 | uint32_t auth_handle, err; | |
546 | ||
547 | err = tpm_oiap(&auth_handle); | |
548 | ||
549 | return convert_return_code(err); | |
550 | } | |
551 | ||
552 | static int do_tpm_load_key2_oiap(cmd_tbl_t *cmdtp, int flag, | |
553 | int argc, char * const argv[]) | |
554 | { | |
555 | uint32_t parent_handle, key_len, key_handle, err; | |
556 | uint8_t usage_auth[DIGEST_LENGTH]; | |
557 | void *key; | |
558 | ||
559 | if (argc < 5) | |
560 | return CMD_RET_USAGE; | |
561 | ||
562 | parent_handle = simple_strtoul(argv[1], NULL, 0); | |
563 | key = (void *)simple_strtoul(argv[2], NULL, 0); | |
564 | key_len = simple_strtoul(argv[3], NULL, 0); | |
565 | if (strlen(argv[4]) != 2 * DIGEST_LENGTH) | |
566 | return CMD_RET_FAILURE; | |
567 | parse_byte_string(argv[4], usage_auth, NULL); | |
568 | ||
569 | err = tpm_load_key2_oiap(parent_handle, key, key_len, usage_auth, | |
570 | &key_handle); | |
571 | if (!err) | |
572 | printf("Key handle is 0x%x\n", key_handle); | |
573 | ||
574 | return convert_return_code(err); | |
575 | } | |
576 | ||
577 | static int do_tpm_get_pub_key_oiap(cmd_tbl_t *cmdtp, int flag, | |
578 | int argc, char * const argv[]) | |
579 | { | |
580 | uint32_t key_handle, err; | |
581 | uint8_t usage_auth[DIGEST_LENGTH]; | |
582 | uint8_t pub_key_buffer[TPM_PUBKEY_MAX_LENGTH]; | |
583 | size_t pub_key_len = sizeof(pub_key_buffer); | |
584 | ||
585 | if (argc < 3) | |
586 | return CMD_RET_USAGE; | |
587 | ||
588 | key_handle = simple_strtoul(argv[1], NULL, 0); | |
589 | if (strlen(argv[2]) != 2 * DIGEST_LENGTH) | |
590 | return CMD_RET_FAILURE; | |
591 | parse_byte_string(argv[2], usage_auth, NULL); | |
592 | ||
593 | err = tpm_get_pub_key_oiap(key_handle, usage_auth, | |
594 | pub_key_buffer, &pub_key_len); | |
595 | if (!err) { | |
596 | printf("dump of received pub key structure:\n"); | |
597 | print_byte_string(pub_key_buffer, pub_key_len); | |
598 | } | |
599 | return convert_return_code(err); | |
600 | } | |
601 | ||
602 | TPM_COMMAND_NO_ARG(tpm_end_oiap) | |
603 | ||
604 | #endif /* CONFIG_TPM_AUTH_SESSIONS */ | |
605 | ||
8732b070 CC |
606 | #define MAKE_TPM_CMD_ENTRY(cmd) \ |
607 | U_BOOT_CMD_MKENT(cmd, 0, 1, do_tpm_ ## cmd, "", "") | |
608 | ||
609 | static cmd_tbl_t tpm_commands[] = { | |
610 | U_BOOT_CMD_MKENT(init, 0, 1, | |
611 | do_tpm_init, "", ""), | |
612 | U_BOOT_CMD_MKENT(startup, 0, 1, | |
613 | do_tpm_startup, "", ""), | |
614 | U_BOOT_CMD_MKENT(self_test_full, 0, 1, | |
615 | do_tpm_self_test_full, "", ""), | |
616 | U_BOOT_CMD_MKENT(continue_self_test, 0, 1, | |
617 | do_tpm_continue_self_test, "", ""), | |
618 | U_BOOT_CMD_MKENT(force_clear, 0, 1, | |
619 | do_tpm_force_clear, "", ""), | |
620 | U_BOOT_CMD_MKENT(physical_enable, 0, 1, | |
621 | do_tpm_physical_enable, "", ""), | |
622 | U_BOOT_CMD_MKENT(physical_disable, 0, 1, | |
623 | do_tpm_physical_disable, "", ""), | |
624 | U_BOOT_CMD_MKENT(nv_define_space, 0, 1, | |
625 | do_tpm_nv_define_space, "", ""), | |
626 | U_BOOT_CMD_MKENT(nv_read_value, 0, 1, | |
627 | do_tpm_nv_read_value, "", ""), | |
628 | U_BOOT_CMD_MKENT(nv_write_value, 0, 1, | |
629 | do_tpm_nv_write_value, "", ""), | |
630 | U_BOOT_CMD_MKENT(extend, 0, 1, | |
631 | do_tpm_extend, "", ""), | |
632 | U_BOOT_CMD_MKENT(pcr_read, 0, 1, | |
633 | do_tpm_pcr_read, "", ""), | |
634 | U_BOOT_CMD_MKENT(tsc_physical_presence, 0, 1, | |
635 | do_tpm_tsc_physical_presence, "", ""), | |
636 | U_BOOT_CMD_MKENT(read_pubek, 0, 1, | |
637 | do_tpm_read_pubek, "", ""), | |
638 | U_BOOT_CMD_MKENT(physical_set_deactivated, 0, 1, | |
639 | do_tpm_physical_set_deactivated, "", ""), | |
640 | U_BOOT_CMD_MKENT(get_capability, 0, 1, | |
641 | do_tpm_get_capability, "", ""), | |
642 | U_BOOT_CMD_MKENT(raw_transfer, 0, 1, | |
643 | do_tpm_raw_transfer, "", ""), | |
644 | U_BOOT_CMD_MKENT(nv_define, 0, 1, | |
645 | do_tpm_nv_define, "", ""), | |
646 | U_BOOT_CMD_MKENT(nv_read, 0, 1, | |
647 | do_tpm_nv_read, "", ""), | |
648 | U_BOOT_CMD_MKENT(nv_write, 0, 1, | |
649 | do_tpm_nv_write, "", ""), | |
be6c1529 RP |
650 | #ifdef CONFIG_TPM_AUTH_SESSIONS |
651 | U_BOOT_CMD_MKENT(oiap, 0, 1, | |
652 | do_tpm_oiap, "", ""), | |
653 | U_BOOT_CMD_MKENT(end_oiap, 0, 1, | |
654 | do_tpm_end_oiap, "", ""), | |
655 | U_BOOT_CMD_MKENT(load_key2_oiap, 0, 1, | |
656 | do_tpm_load_key2_oiap, "", ""), | |
657 | U_BOOT_CMD_MKENT(get_pub_key_oiap, 0, 1, | |
658 | do_tpm_get_pub_key_oiap, "", ""), | |
659 | #endif /* CONFIG_TPM_AUTH_SESSIONS */ | |
8732b070 CC |
660 | }; |
661 | ||
662 | static int do_tpm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
663 | { | |
664 | cmd_tbl_t *tpm_cmd; | |
665 | ||
666 | if (argc < 2) | |
667 | return CMD_RET_USAGE; | |
668 | tpm_cmd = find_cmd_tbl(argv[1], tpm_commands, ARRAY_SIZE(tpm_commands)); | |
669 | if (!tpm_cmd) | |
670 | return CMD_RET_USAGE; | |
eea3f4d3 | 671 | |
8732b070 | 672 | return tpm_cmd->cmd(cmdtp, flag, argc - 1, argv + 1); |
eea3f4d3 LS |
673 | } |
674 | ||
8732b070 CC |
675 | U_BOOT_CMD(tpm, CONFIG_SYS_MAXARGS, 1, do_tpm, |
676 | "Issue a TPM command", | |
677 | "cmd args...\n" | |
678 | " - Issue TPM command <cmd> with arguments <args...>.\n" | |
679 | "Admin Startup and State Commands:\n" | |
680 | " init\n" | |
681 | " - Put TPM into a state where it waits for 'startup' command.\n" | |
682 | " startup mode\n" | |
683 | " - Issue TPM_Starup command. <mode> is one of TPM_ST_CLEAR,\n" | |
684 | " TPM_ST_STATE, and TPM_ST_DEACTIVATED.\n" | |
685 | "Admin Testing Commands:\n" | |
686 | " self_test_full\n" | |
687 | " - Test all of the TPM capabilities.\n" | |
688 | " continue_self_test\n" | |
689 | " - Inform TPM that it should complete the self-test.\n" | |
690 | "Admin Opt-in Commands:\n" | |
691 | " physical_enable\n" | |
692 | " - Set the PERMANENT disable flag to FALSE using physical presence as\n" | |
693 | " authorization.\n" | |
694 | " physical_disable\n" | |
695 | " - Set the PERMANENT disable flag to TRUE using physical presence as\n" | |
696 | " authorization.\n" | |
697 | " physical_set_deactivated 0|1\n" | |
698 | " - Set deactivated flag.\n" | |
699 | "Admin Ownership Commands:\n" | |
700 | " force_clear\n" | |
701 | " - Issue TPM_ForceClear command.\n" | |
702 | " tsc_physical_presence flags\n" | |
703 | " - Set TPM device's Physical Presence flags to <flags>.\n" | |
704 | "The Capability Commands:\n" | |
705 | " get_capability cap_area sub_cap addr count\n" | |
706 | " - Read <count> bytes of TPM capability indexed by <cap_area> and\n" | |
707 | " <sub_cap> to memory address <addr>.\n" | |
be6c1529 RP |
708 | #ifdef CONFIG_TPM_AUTH_SESSIONS |
709 | "Storage functions\n" | |
710 | " loadkey2_oiap parent_handle key_addr key_len usage_auth\n" | |
711 | " - loads a key data from memory address <key_addr>, <key_len> bytes\n" | |
712 | " into TPM using the parent key <parent_handle> with authorization\n" | |
713 | " <usage_auth> (20 bytes hex string).\n" | |
714 | " get_pub_key_oiap key_handle usage_auth\n" | |
715 | " - get the public key portion of a loaded key <key_handle> using\n" | |
716 | " authorization <usage auth> (20 bytes hex string)\n" | |
717 | #endif /* CONFIG_TPM_AUTH_SESSIONS */ | |
8732b070 CC |
718 | "Endorsement Key Handling Commands:\n" |
719 | " read_pubek addr count\n" | |
720 | " - Read <count> bytes of the public endorsement key to memory\n" | |
721 | " address <addr>\n" | |
722 | "Integrity Collection and Reporting Commands:\n" | |
723 | " extend index digest_hex_string\n" | |
724 | " - Add a new measurement to a PCR. Update PCR <index> with the 20-bytes\n" | |
725 | " <digest_hex_string>\n" | |
726 | " pcr_read index addr count\n" | |
727 | " - Read <count> bytes from PCR <index> to memory address <addr>.\n" | |
be6c1529 RP |
728 | #ifdef CONFIG_TPM_AUTH_SESSIONS |
729 | "Authorization Sessions\n" | |
730 | " oiap\n" | |
731 | " - setup an OIAP session\n" | |
732 | " end_oiap\n" | |
733 | " - terminates an active OIAP session\n" | |
734 | #endif /* CONFIG_TPM_AUTH_SESSIONS */ | |
8732b070 CC |
735 | "Non-volatile Storage Commands:\n" |
736 | " nv_define_space index permission size\n" | |
737 | " - Establish a space at index <index> with <permission> of <size> bytes.\n" | |
738 | " nv_read_value index addr count\n" | |
739 | " - Read <count> bytes from space <index> to memory address <addr>.\n" | |
740 | " nv_write_value index addr count\n" | |
741 | " - Write <count> bytes from memory address <addr> to space <index>.\n" | |
742 | "Miscellaneous helper functions:\n" | |
743 | " raw_transfer byte_string\n" | |
744 | " - Send a byte string <byte_string> to TPM and print the response.\n" | |
745 | " Non-volatile storage helper functions:\n" | |
746 | " These helper functions treat a non-volatile space as a non-padded\n" | |
747 | " sequence of integer values. These integer values are defined by a type\n" | |
748 | " string, which is a text string of 'bwd' characters: 'b' means a 8-bit\n" | |
749 | " value, 'w' 16-bit value, 'd' 32-bit value. All helper functions take\n" | |
750 | " a type string as their first argument.\n" | |
751 | " nv_define type_string index perm\n" | |
752 | " - Define a space <index> with permission <perm>.\n" | |
753 | " nv_read types_string index vars...\n" | |
754 | " - Read from space <index> to environment variables <vars...>.\n" | |
755 | " nv_write types_string index values...\n" | |
756 | " - Write to space <index> from values <values...>.\n" | |
eea3f4d3 | 757 | ); |