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Commit | Line | Data |
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576fb1ed | 1 | /* |
8732b070 | 2 | * Copyright (c) 2013 The Chromium OS Authors. |
576fb1ed VB |
3 | * |
4 | * See file CREDITS for list of people who contributed to this | |
5 | * project. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
20 | * MA 02111-1307 USA | |
21 | */ | |
22 | ||
23 | #include <common.h> | |
24 | #include <command.h> | |
8732b070 | 25 | #include <malloc.h> |
576fb1ed | 26 | #include <tpm.h> |
8732b070 CC |
27 | #include <asm/unaligned.h> |
28 | #include <linux/string.h> | |
576fb1ed | 29 | |
be6c1529 RP |
30 | /* Useful constants */ |
31 | enum { | |
32 | DIGEST_LENGTH = 20, | |
33 | /* max lengths, valid for RSA keys <= 2048 bits */ | |
34 | TPM_PUBKEY_MAX_LENGTH = 288, | |
35 | }; | |
36 | ||
8732b070 CC |
37 | /** |
38 | * Print a byte string in hexdecimal format, 16-bytes per line. | |
39 | * | |
40 | * @param data byte string to be printed | |
41 | * @param count number of bytes to be printed | |
42 | */ | |
43 | static void print_byte_string(uint8_t *data, size_t count) | |
44 | { | |
45 | int i, print_newline = 0; | |
576fb1ed | 46 | |
8732b070 CC |
47 | for (i = 0; i < count; i++) { |
48 | printf(" %02x", data[i]); | |
49 | print_newline = (i % 16 == 15); | |
50 | if (print_newline) | |
51 | putc('\n'); | |
52 | } | |
53 | /* Avoid duplicated newline at the end */ | |
54 | if (!print_newline) | |
55 | putc('\n'); | |
56 | } | |
57 | ||
58 | /** | |
59 | * Convert a text string of hexdecimal values into a byte string. | |
576fb1ed | 60 | * |
8732b070 CC |
61 | * @param bytes text string of hexdecimal values with no space |
62 | * between them | |
63 | * @param data output buffer for byte string. The caller has to make | |
64 | * sure it is large enough for storing the output. If | |
65 | * NULL is passed, a large enough buffer will be allocated, | |
66 | * and the caller must free it. | |
67 | * @param count_ptr output variable for the length of byte string | |
68 | * @return pointer to output buffer | |
576fb1ed | 69 | */ |
8732b070 CC |
70 | static void *parse_byte_string(char *bytes, uint8_t *data, size_t *count_ptr) |
71 | { | |
72 | char byte[3]; | |
73 | size_t count, length; | |
74 | int i; | |
75 | ||
76 | length = strlen(bytes); | |
77 | count = length / 2; | |
78 | ||
79 | if (!data) | |
80 | data = malloc(count); | |
81 | if (!data) | |
82 | return NULL; | |
83 | ||
84 | byte[2] = '\0'; | |
85 | for (i = 0; i < length; i += 2) { | |
86 | byte[0] = bytes[i]; | |
87 | byte[1] = bytes[i + 1]; | |
88 | data[i / 2] = (uint8_t)simple_strtoul(byte, NULL, 16); | |
576fb1ed VB |
89 | } |
90 | ||
8732b070 CC |
91 | if (count_ptr) |
92 | *count_ptr = count; | |
93 | ||
94 | return data; | |
95 | } | |
96 | ||
97 | /** | |
98 | * Convert TPM command return code to U-Boot command error codes. | |
99 | * | |
100 | * @param return_code TPM command return code | |
101 | * @return value of enum command_ret_t | |
102 | */ | |
103 | static int convert_return_code(uint32_t return_code) | |
104 | { | |
105 | if (return_code) | |
106 | return CMD_RET_FAILURE; | |
107 | else | |
108 | return CMD_RET_SUCCESS; | |
109 | } | |
110 | ||
111 | /** | |
112 | * Return number of values defined by a type string. | |
113 | * | |
114 | * @param type_str type string | |
115 | * @return number of values of type string | |
116 | */ | |
117 | static int type_string_get_num_values(const char *type_str) | |
118 | { | |
119 | return strlen(type_str); | |
120 | } | |
121 | ||
122 | /** | |
123 | * Return total size of values defined by a type string. | |
124 | * | |
125 | * @param type_str type string | |
126 | * @return total size of values of type string, or 0 if type string | |
127 | * contains illegal type character. | |
128 | */ | |
129 | static size_t type_string_get_space_size(const char *type_str) | |
130 | { | |
131 | size_t size; | |
132 | ||
133 | for (size = 0; *type_str; type_str++) { | |
134 | switch (*type_str) { | |
135 | case 'b': | |
136 | size += 1; | |
137 | break; | |
138 | case 'w': | |
139 | size += 2; | |
140 | break; | |
141 | case 'd': | |
142 | size += 4; | |
143 | break; | |
144 | default: | |
145 | return 0; | |
146 | } | |
576fb1ed | 147 | } |
8732b070 CC |
148 | |
149 | return size; | |
576fb1ed VB |
150 | } |
151 | ||
8732b070 CC |
152 | /** |
153 | * Allocate a buffer large enough to hold values defined by a type | |
154 | * string. The caller has to free the buffer. | |
155 | * | |
156 | * @param type_str type string | |
157 | * @param count pointer for storing size of buffer | |
158 | * @return pointer to buffer or NULL on error | |
159 | */ | |
160 | static void *type_string_alloc(const char *type_str, uint32_t *count) | |
161 | { | |
162 | void *data; | |
163 | size_t size; | |
164 | ||
165 | size = type_string_get_space_size(type_str); | |
166 | if (!size) | |
167 | return NULL; | |
168 | data = malloc(size); | |
169 | if (data) | |
170 | *count = size; | |
eea3f4d3 | 171 | |
8732b070 CC |
172 | return data; |
173 | } | |
174 | ||
175 | /** | |
176 | * Pack values defined by a type string into a buffer. The buffer must have | |
177 | * large enough space. | |
178 | * | |
179 | * @param type_str type string | |
180 | * @param values text strings of values to be packed | |
181 | * @param data output buffer of values | |
182 | * @return 0 on success, non-0 on error | |
183 | */ | |
184 | static int type_string_pack(const char *type_str, char * const values[], | |
185 | uint8_t *data) | |
576fb1ed | 186 | { |
8732b070 CC |
187 | size_t offset; |
188 | uint32_t value; | |
189 | ||
190 | for (offset = 0; *type_str; type_str++, values++) { | |
191 | value = simple_strtoul(values[0], NULL, 0); | |
192 | switch (*type_str) { | |
193 | case 'b': | |
194 | data[offset] = value; | |
195 | offset += 1; | |
196 | break; | |
197 | case 'w': | |
198 | put_unaligned_be16(value, data + offset); | |
199 | offset += 2; | |
200 | break; | |
201 | case 'd': | |
202 | put_unaligned_be32(value, data + offset); | |
203 | offset += 4; | |
eea3f4d3 | 204 | break; |
8732b070 CC |
205 | default: |
206 | return -1; | |
eea3f4d3 | 207 | } |
8732b070 CC |
208 | } |
209 | ||
210 | return 0; | |
211 | } | |
212 | ||
213 | /** | |
214 | * Read values defined by a type string from a buffer, and write these values | |
215 | * to environment variables. | |
216 | * | |
217 | * @param type_str type string | |
218 | * @param data input buffer of values | |
219 | * @param vars names of environment variables | |
220 | * @return 0 on success, non-0 on error | |
221 | */ | |
222 | static int type_string_write_vars(const char *type_str, uint8_t *data, | |
223 | char * const vars[]) | |
224 | { | |
225 | size_t offset; | |
226 | uint32_t value; | |
227 | ||
228 | for (offset = 0; *type_str; type_str++, vars++) { | |
229 | switch (*type_str) { | |
230 | case 'b': | |
231 | value = data[offset]; | |
232 | offset += 1; | |
233 | break; | |
234 | case 'w': | |
235 | value = get_unaligned_be16(data + offset); | |
236 | offset += 2; | |
eea3f4d3 | 237 | break; |
8732b070 CC |
238 | case 'd': |
239 | value = get_unaligned_be32(data + offset); | |
240 | offset += 4; | |
241 | break; | |
242 | default: | |
243 | return -1; | |
eea3f4d3 | 244 | } |
8732b070 CC |
245 | if (setenv_ulong(*vars, value)) |
246 | return -1; | |
eea3f4d3 | 247 | } |
8732b070 CC |
248 | |
249 | return 0; | |
eea3f4d3 | 250 | } |
576fb1ed | 251 | |
8732b070 CC |
252 | static int do_tpm_startup(cmd_tbl_t *cmdtp, int flag, |
253 | int argc, char * const argv[]) | |
254 | { | |
255 | enum tpm_startup_type mode; | |
eea3f4d3 | 256 | |
8732b070 CC |
257 | if (argc != 2) |
258 | return CMD_RET_USAGE; | |
259 | if (!strcasecmp("TPM_ST_CLEAR", argv[1])) { | |
260 | mode = TPM_ST_CLEAR; | |
261 | } else if (!strcasecmp("TPM_ST_STATE", argv[1])) { | |
262 | mode = TPM_ST_STATE; | |
263 | } else if (!strcasecmp("TPM_ST_DEACTIVATED", argv[1])) { | |
264 | mode = TPM_ST_DEACTIVATED; | |
265 | } else { | |
266 | printf("Couldn't recognize mode string: %s\n", argv[1]); | |
267 | return CMD_RET_FAILURE; | |
268 | } | |
269 | ||
270 | return convert_return_code(tpm_startup(mode)); | |
271 | } | |
272 | ||
273 | static int do_tpm_nv_define_space(cmd_tbl_t *cmdtp, int flag, | |
274 | int argc, char * const argv[]) | |
275 | { | |
276 | uint32_t index, perm, size; | |
277 | ||
278 | if (argc != 4) | |
279 | return CMD_RET_USAGE; | |
280 | index = simple_strtoul(argv[1], NULL, 0); | |
281 | perm = simple_strtoul(argv[2], NULL, 0); | |
282 | size = simple_strtoul(argv[3], NULL, 0); | |
283 | ||
284 | return convert_return_code(tpm_nv_define_space(index, perm, size)); | |
285 | } | |
eea3f4d3 | 286 | |
8732b070 CC |
287 | static int do_tpm_nv_read_value(cmd_tbl_t *cmdtp, int flag, |
288 | int argc, char * const argv[]) | |
eea3f4d3 | 289 | { |
8732b070 CC |
290 | uint32_t index, count, rc; |
291 | void *data; | |
eea3f4d3 | 292 | |
8732b070 CC |
293 | if (argc != 4) |
294 | return CMD_RET_USAGE; | |
295 | index = simple_strtoul(argv[1], NULL, 0); | |
296 | data = (void *)simple_strtoul(argv[2], NULL, 0); | |
297 | count = simple_strtoul(argv[3], NULL, 0); | |
298 | ||
299 | rc = tpm_nv_read_value(index, data, count); | |
300 | if (!rc) { | |
301 | puts("area content:\n"); | |
302 | print_byte_string(data, count); | |
576fb1ed VB |
303 | } |
304 | ||
8732b070 CC |
305 | return convert_return_code(rc); |
306 | } | |
307 | ||
308 | static int do_tpm_nv_write_value(cmd_tbl_t *cmdtp, int flag, | |
309 | int argc, char * const argv[]) | |
310 | { | |
311 | uint32_t index, rc; | |
312 | size_t count; | |
313 | void *data; | |
314 | ||
315 | if (argc != 3) | |
316 | return CMD_RET_USAGE; | |
317 | index = simple_strtoul(argv[1], NULL, 0); | |
318 | data = parse_byte_string(argv[2], NULL, &count); | |
319 | if (!data) { | |
320 | printf("Couldn't parse byte string %s\n", argv[2]); | |
321 | return CMD_RET_FAILURE; | |
eea3f4d3 LS |
322 | } |
323 | ||
8732b070 CC |
324 | rc = tpm_nv_write_value(index, data, count); |
325 | free(data); | |
326 | ||
327 | return convert_return_code(rc); | |
328 | } | |
329 | ||
330 | static int do_tpm_extend(cmd_tbl_t *cmdtp, int flag, | |
331 | int argc, char * const argv[]) | |
332 | { | |
333 | uint32_t index, rc; | |
334 | uint8_t in_digest[20], out_digest[20]; | |
335 | ||
336 | if (argc != 3) | |
337 | return CMD_RET_USAGE; | |
338 | index = simple_strtoul(argv[1], NULL, 0); | |
339 | if (!parse_byte_string(argv[2], in_digest, NULL)) { | |
340 | printf("Couldn't parse byte string %s\n", argv[2]); | |
341 | return CMD_RET_FAILURE; | |
576fb1ed VB |
342 | } |
343 | ||
8732b070 CC |
344 | rc = tpm_extend(index, in_digest, out_digest); |
345 | if (!rc) { | |
346 | puts("PCR value after execution of the command:\n"); | |
347 | print_byte_string(out_digest, sizeof(out_digest)); | |
576fb1ed VB |
348 | } |
349 | ||
8732b070 CC |
350 | return convert_return_code(rc); |
351 | } | |
352 | ||
353 | static int do_tpm_pcr_read(cmd_tbl_t *cmdtp, int flag, | |
354 | int argc, char * const argv[]) | |
355 | { | |
356 | uint32_t index, count, rc; | |
357 | void *data; | |
358 | ||
359 | if (argc != 4) | |
360 | return CMD_RET_USAGE; | |
361 | index = simple_strtoul(argv[1], NULL, 0); | |
362 | data = (void *)simple_strtoul(argv[2], NULL, 0); | |
363 | count = simple_strtoul(argv[3], NULL, 0); | |
576fb1ed | 364 | |
8732b070 CC |
365 | rc = tpm_pcr_read(index, data, count); |
366 | if (!rc) { | |
367 | puts("Named PCR content:\n"); | |
368 | print_byte_string(data, count); | |
576fb1ed VB |
369 | } |
370 | ||
8732b070 | 371 | return convert_return_code(rc); |
576fb1ed VB |
372 | } |
373 | ||
8732b070 CC |
374 | static int do_tpm_tsc_physical_presence(cmd_tbl_t *cmdtp, int flag, |
375 | int argc, char * const argv[]) | |
376 | { | |
377 | uint16_t presence; | |
378 | ||
379 | if (argc != 2) | |
380 | return CMD_RET_USAGE; | |
381 | presence = (uint16_t)simple_strtoul(argv[1], NULL, 0); | |
eea3f4d3 | 382 | |
8732b070 CC |
383 | return convert_return_code(tpm_tsc_physical_presence(presence)); |
384 | } | |
385 | ||
386 | static int do_tpm_read_pubek(cmd_tbl_t *cmdtp, int flag, | |
387 | int argc, char * const argv[]) | |
eea3f4d3 | 388 | { |
8732b070 CC |
389 | uint32_t count, rc; |
390 | void *data; | |
391 | ||
392 | if (argc != 3) | |
393 | return CMD_RET_USAGE; | |
394 | data = (void *)simple_strtoul(argv[1], NULL, 0); | |
395 | count = simple_strtoul(argv[2], NULL, 0); | |
396 | ||
397 | rc = tpm_read_pubek(data, count); | |
398 | if (!rc) { | |
399 | puts("pubek value:\n"); | |
400 | print_byte_string(data, count); | |
401 | } | |
402 | ||
403 | return convert_return_code(rc); | |
eea3f4d3 LS |
404 | } |
405 | ||
8732b070 CC |
406 | static int do_tpm_physical_set_deactivated(cmd_tbl_t *cmdtp, int flag, |
407 | int argc, char * const argv[]) | |
408 | { | |
409 | uint8_t state; | |
410 | ||
411 | if (argc != 2) | |
412 | return CMD_RET_USAGE; | |
413 | state = (uint8_t)simple_strtoul(argv[1], NULL, 0); | |
eea3f4d3 | 414 | |
8732b070 CC |
415 | return convert_return_code(tpm_physical_set_deactivated(state)); |
416 | } | |
417 | ||
418 | static int do_tpm_get_capability(cmd_tbl_t *cmdtp, int flag, | |
419 | int argc, char * const argv[]) | |
420 | { | |
421 | uint32_t cap_area, sub_cap, rc; | |
422 | void *cap; | |
423 | size_t count; | |
424 | ||
425 | if (argc != 5) | |
426 | return CMD_RET_USAGE; | |
427 | cap_area = simple_strtoul(argv[1], NULL, 0); | |
428 | sub_cap = simple_strtoul(argv[2], NULL, 0); | |
429 | cap = (void *)simple_strtoul(argv[3], NULL, 0); | |
430 | count = simple_strtoul(argv[4], NULL, 0); | |
431 | ||
432 | rc = tpm_get_capability(cap_area, sub_cap, cap, count); | |
433 | if (!rc) { | |
434 | puts("capability information:\n"); | |
435 | print_byte_string(cap, count); | |
436 | } | |
437 | ||
438 | return convert_return_code(rc); | |
439 | } | |
eea3f4d3 | 440 | |
8732b070 CC |
441 | #define TPM_COMMAND_NO_ARG(cmd) \ |
442 | static int do_##cmd(cmd_tbl_t *cmdtp, int flag, \ | |
443 | int argc, char * const argv[]) \ | |
444 | { \ | |
445 | if (argc != 1) \ | |
446 | return CMD_RET_USAGE; \ | |
447 | return convert_return_code(cmd()); \ | |
448 | } | |
449 | ||
450 | TPM_COMMAND_NO_ARG(tpm_init) | |
451 | TPM_COMMAND_NO_ARG(tpm_self_test_full) | |
452 | TPM_COMMAND_NO_ARG(tpm_continue_self_test) | |
453 | TPM_COMMAND_NO_ARG(tpm_force_clear) | |
454 | TPM_COMMAND_NO_ARG(tpm_physical_enable) | |
455 | TPM_COMMAND_NO_ARG(tpm_physical_disable) | |
456 | ||
457 | static int do_tpm_raw_transfer(cmd_tbl_t *cmdtp, int flag, | |
458 | int argc, char * const argv[]) | |
459 | { | |
460 | void *command; | |
461 | uint8_t response[1024]; | |
462 | size_t count, response_length = sizeof(response); | |
463 | uint32_t rc; | |
464 | ||
465 | command = parse_byte_string(argv[1], NULL, &count); | |
466 | if (!command) { | |
467 | printf("Couldn't parse byte string %s\n", argv[1]); | |
468 | return CMD_RET_FAILURE; | |
469 | } | |
470 | ||
471 | rc = tis_sendrecv(command, count, response, &response_length); | |
472 | free(command); | |
473 | if (!rc) { | |
474 | puts("tpm response:\n"); | |
475 | print_byte_string(response, response_length); | |
476 | } | |
477 | ||
478 | return convert_return_code(rc); | |
479 | } | |
480 | ||
481 | static int do_tpm_nv_define(cmd_tbl_t *cmdtp, int flag, | |
482 | int argc, char * const argv[]) | |
483 | { | |
484 | uint32_t index, perm, size; | |
485 | ||
486 | if (argc != 4) | |
487 | return CMD_RET_USAGE; | |
488 | size = type_string_get_space_size(argv[1]); | |
489 | if (!size) { | |
490 | printf("Couldn't parse arguments\n"); | |
491 | return CMD_RET_USAGE; | |
492 | } | |
493 | index = simple_strtoul(argv[2], NULL, 0); | |
494 | perm = simple_strtoul(argv[3], NULL, 0); | |
495 | ||
496 | return convert_return_code(tpm_nv_define_space(index, perm, size)); | |
497 | } | |
498 | ||
499 | static int do_tpm_nv_read(cmd_tbl_t *cmdtp, int flag, | |
500 | int argc, char * const argv[]) | |
eea3f4d3 | 501 | { |
8732b070 CC |
502 | uint32_t index, count, err; |
503 | void *data; | |
eea3f4d3 | 504 | |
8732b070 CC |
505 | if (argc < 3) |
506 | return CMD_RET_USAGE; | |
507 | if (argc != 3 + type_string_get_num_values(argv[1])) | |
508 | return CMD_RET_USAGE; | |
509 | index = simple_strtoul(argv[2], NULL, 0); | |
510 | data = type_string_alloc(argv[1], &count); | |
511 | if (!data) { | |
512 | printf("Couldn't parse arguments\n"); | |
513 | return CMD_RET_USAGE; | |
eea3f4d3 LS |
514 | } |
515 | ||
8732b070 CC |
516 | err = tpm_nv_read_value(index, data, count); |
517 | if (!err) { | |
518 | if (type_string_write_vars(argv[1], data, argv + 3)) { | |
519 | printf("Couldn't write to variables\n"); | |
520 | err = ~0; | |
521 | } | |
eea3f4d3 | 522 | } |
8732b070 CC |
523 | free(data); |
524 | ||
525 | return convert_return_code(err); | |
526 | } | |
527 | ||
528 | static int do_tpm_nv_write(cmd_tbl_t *cmdtp, int flag, | |
529 | int argc, char * const argv[]) | |
530 | { | |
531 | uint32_t index, count, err; | |
532 | void *data; | |
533 | ||
534 | if (argc < 3) | |
535 | return CMD_RET_USAGE; | |
536 | if (argc != 3 + type_string_get_num_values(argv[1])) | |
537 | return CMD_RET_USAGE; | |
538 | index = simple_strtoul(argv[2], NULL, 0); | |
539 | data = type_string_alloc(argv[1], &count); | |
540 | if (!data) { | |
541 | printf("Couldn't parse arguments\n"); | |
542 | return CMD_RET_USAGE; | |
543 | } | |
544 | if (type_string_pack(argv[1], argv + 3, data)) { | |
545 | printf("Couldn't parse arguments\n"); | |
546 | free(data); | |
547 | return CMD_RET_USAGE; | |
548 | } | |
549 | ||
550 | err = tpm_nv_write_value(index, data, count); | |
551 | free(data); | |
552 | ||
553 | return convert_return_code(err); | |
554 | } | |
555 | ||
be6c1529 RP |
556 | #ifdef CONFIG_TPM_AUTH_SESSIONS |
557 | ||
558 | static int do_tpm_oiap(cmd_tbl_t *cmdtp, int flag, | |
559 | int argc, char * const argv[]) | |
560 | { | |
561 | uint32_t auth_handle, err; | |
562 | ||
563 | err = tpm_oiap(&auth_handle); | |
564 | ||
565 | return convert_return_code(err); | |
566 | } | |
567 | ||
568 | static int do_tpm_load_key2_oiap(cmd_tbl_t *cmdtp, int flag, | |
569 | int argc, char * const argv[]) | |
570 | { | |
571 | uint32_t parent_handle, key_len, key_handle, err; | |
572 | uint8_t usage_auth[DIGEST_LENGTH]; | |
573 | void *key; | |
574 | ||
575 | if (argc < 5) | |
576 | return CMD_RET_USAGE; | |
577 | ||
578 | parent_handle = simple_strtoul(argv[1], NULL, 0); | |
579 | key = (void *)simple_strtoul(argv[2], NULL, 0); | |
580 | key_len = simple_strtoul(argv[3], NULL, 0); | |
581 | if (strlen(argv[4]) != 2 * DIGEST_LENGTH) | |
582 | return CMD_RET_FAILURE; | |
583 | parse_byte_string(argv[4], usage_auth, NULL); | |
584 | ||
585 | err = tpm_load_key2_oiap(parent_handle, key, key_len, usage_auth, | |
586 | &key_handle); | |
587 | if (!err) | |
588 | printf("Key handle is 0x%x\n", key_handle); | |
589 | ||
590 | return convert_return_code(err); | |
591 | } | |
592 | ||
593 | static int do_tpm_get_pub_key_oiap(cmd_tbl_t *cmdtp, int flag, | |
594 | int argc, char * const argv[]) | |
595 | { | |
596 | uint32_t key_handle, err; | |
597 | uint8_t usage_auth[DIGEST_LENGTH]; | |
598 | uint8_t pub_key_buffer[TPM_PUBKEY_MAX_LENGTH]; | |
599 | size_t pub_key_len = sizeof(pub_key_buffer); | |
600 | ||
601 | if (argc < 3) | |
602 | return CMD_RET_USAGE; | |
603 | ||
604 | key_handle = simple_strtoul(argv[1], NULL, 0); | |
605 | if (strlen(argv[2]) != 2 * DIGEST_LENGTH) | |
606 | return CMD_RET_FAILURE; | |
607 | parse_byte_string(argv[2], usage_auth, NULL); | |
608 | ||
609 | err = tpm_get_pub_key_oiap(key_handle, usage_auth, | |
610 | pub_key_buffer, &pub_key_len); | |
611 | if (!err) { | |
612 | printf("dump of received pub key structure:\n"); | |
613 | print_byte_string(pub_key_buffer, pub_key_len); | |
614 | } | |
615 | return convert_return_code(err); | |
616 | } | |
617 | ||
618 | TPM_COMMAND_NO_ARG(tpm_end_oiap) | |
619 | ||
620 | #endif /* CONFIG_TPM_AUTH_SESSIONS */ | |
621 | ||
8732b070 CC |
622 | #define MAKE_TPM_CMD_ENTRY(cmd) \ |
623 | U_BOOT_CMD_MKENT(cmd, 0, 1, do_tpm_ ## cmd, "", "") | |
624 | ||
625 | static cmd_tbl_t tpm_commands[] = { | |
626 | U_BOOT_CMD_MKENT(init, 0, 1, | |
627 | do_tpm_init, "", ""), | |
628 | U_BOOT_CMD_MKENT(startup, 0, 1, | |
629 | do_tpm_startup, "", ""), | |
630 | U_BOOT_CMD_MKENT(self_test_full, 0, 1, | |
631 | do_tpm_self_test_full, "", ""), | |
632 | U_BOOT_CMD_MKENT(continue_self_test, 0, 1, | |
633 | do_tpm_continue_self_test, "", ""), | |
634 | U_BOOT_CMD_MKENT(force_clear, 0, 1, | |
635 | do_tpm_force_clear, "", ""), | |
636 | U_BOOT_CMD_MKENT(physical_enable, 0, 1, | |
637 | do_tpm_physical_enable, "", ""), | |
638 | U_BOOT_CMD_MKENT(physical_disable, 0, 1, | |
639 | do_tpm_physical_disable, "", ""), | |
640 | U_BOOT_CMD_MKENT(nv_define_space, 0, 1, | |
641 | do_tpm_nv_define_space, "", ""), | |
642 | U_BOOT_CMD_MKENT(nv_read_value, 0, 1, | |
643 | do_tpm_nv_read_value, "", ""), | |
644 | U_BOOT_CMD_MKENT(nv_write_value, 0, 1, | |
645 | do_tpm_nv_write_value, "", ""), | |
646 | U_BOOT_CMD_MKENT(extend, 0, 1, | |
647 | do_tpm_extend, "", ""), | |
648 | U_BOOT_CMD_MKENT(pcr_read, 0, 1, | |
649 | do_tpm_pcr_read, "", ""), | |
650 | U_BOOT_CMD_MKENT(tsc_physical_presence, 0, 1, | |
651 | do_tpm_tsc_physical_presence, "", ""), | |
652 | U_BOOT_CMD_MKENT(read_pubek, 0, 1, | |
653 | do_tpm_read_pubek, "", ""), | |
654 | U_BOOT_CMD_MKENT(physical_set_deactivated, 0, 1, | |
655 | do_tpm_physical_set_deactivated, "", ""), | |
656 | U_BOOT_CMD_MKENT(get_capability, 0, 1, | |
657 | do_tpm_get_capability, "", ""), | |
658 | U_BOOT_CMD_MKENT(raw_transfer, 0, 1, | |
659 | do_tpm_raw_transfer, "", ""), | |
660 | U_BOOT_CMD_MKENT(nv_define, 0, 1, | |
661 | do_tpm_nv_define, "", ""), | |
662 | U_BOOT_CMD_MKENT(nv_read, 0, 1, | |
663 | do_tpm_nv_read, "", ""), | |
664 | U_BOOT_CMD_MKENT(nv_write, 0, 1, | |
665 | do_tpm_nv_write, "", ""), | |
be6c1529 RP |
666 | #ifdef CONFIG_TPM_AUTH_SESSIONS |
667 | U_BOOT_CMD_MKENT(oiap, 0, 1, | |
668 | do_tpm_oiap, "", ""), | |
669 | U_BOOT_CMD_MKENT(end_oiap, 0, 1, | |
670 | do_tpm_end_oiap, "", ""), | |
671 | U_BOOT_CMD_MKENT(load_key2_oiap, 0, 1, | |
672 | do_tpm_load_key2_oiap, "", ""), | |
673 | U_BOOT_CMD_MKENT(get_pub_key_oiap, 0, 1, | |
674 | do_tpm_get_pub_key_oiap, "", ""), | |
675 | #endif /* CONFIG_TPM_AUTH_SESSIONS */ | |
8732b070 CC |
676 | }; |
677 | ||
678 | static int do_tpm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
679 | { | |
680 | cmd_tbl_t *tpm_cmd; | |
681 | ||
682 | if (argc < 2) | |
683 | return CMD_RET_USAGE; | |
684 | tpm_cmd = find_cmd_tbl(argv[1], tpm_commands, ARRAY_SIZE(tpm_commands)); | |
685 | if (!tpm_cmd) | |
686 | return CMD_RET_USAGE; | |
eea3f4d3 | 687 | |
8732b070 | 688 | return tpm_cmd->cmd(cmdtp, flag, argc - 1, argv + 1); |
eea3f4d3 LS |
689 | } |
690 | ||
8732b070 CC |
691 | U_BOOT_CMD(tpm, CONFIG_SYS_MAXARGS, 1, do_tpm, |
692 | "Issue a TPM command", | |
693 | "cmd args...\n" | |
694 | " - Issue TPM command <cmd> with arguments <args...>.\n" | |
695 | "Admin Startup and State Commands:\n" | |
696 | " init\n" | |
697 | " - Put TPM into a state where it waits for 'startup' command.\n" | |
698 | " startup mode\n" | |
699 | " - Issue TPM_Starup command. <mode> is one of TPM_ST_CLEAR,\n" | |
700 | " TPM_ST_STATE, and TPM_ST_DEACTIVATED.\n" | |
701 | "Admin Testing Commands:\n" | |
702 | " self_test_full\n" | |
703 | " - Test all of the TPM capabilities.\n" | |
704 | " continue_self_test\n" | |
705 | " - Inform TPM that it should complete the self-test.\n" | |
706 | "Admin Opt-in Commands:\n" | |
707 | " physical_enable\n" | |
708 | " - Set the PERMANENT disable flag to FALSE using physical presence as\n" | |
709 | " authorization.\n" | |
710 | " physical_disable\n" | |
711 | " - Set the PERMANENT disable flag to TRUE using physical presence as\n" | |
712 | " authorization.\n" | |
713 | " physical_set_deactivated 0|1\n" | |
714 | " - Set deactivated flag.\n" | |
715 | "Admin Ownership Commands:\n" | |
716 | " force_clear\n" | |
717 | " - Issue TPM_ForceClear command.\n" | |
718 | " tsc_physical_presence flags\n" | |
719 | " - Set TPM device's Physical Presence flags to <flags>.\n" | |
720 | "The Capability Commands:\n" | |
721 | " get_capability cap_area sub_cap addr count\n" | |
722 | " - Read <count> bytes of TPM capability indexed by <cap_area> and\n" | |
723 | " <sub_cap> to memory address <addr>.\n" | |
be6c1529 RP |
724 | #ifdef CONFIG_TPM_AUTH_SESSIONS |
725 | "Storage functions\n" | |
726 | " loadkey2_oiap parent_handle key_addr key_len usage_auth\n" | |
727 | " - loads a key data from memory address <key_addr>, <key_len> bytes\n" | |
728 | " into TPM using the parent key <parent_handle> with authorization\n" | |
729 | " <usage_auth> (20 bytes hex string).\n" | |
730 | " get_pub_key_oiap key_handle usage_auth\n" | |
731 | " - get the public key portion of a loaded key <key_handle> using\n" | |
732 | " authorization <usage auth> (20 bytes hex string)\n" | |
733 | #endif /* CONFIG_TPM_AUTH_SESSIONS */ | |
8732b070 CC |
734 | "Endorsement Key Handling Commands:\n" |
735 | " read_pubek addr count\n" | |
736 | " - Read <count> bytes of the public endorsement key to memory\n" | |
737 | " address <addr>\n" | |
738 | "Integrity Collection and Reporting Commands:\n" | |
739 | " extend index digest_hex_string\n" | |
740 | " - Add a new measurement to a PCR. Update PCR <index> with the 20-bytes\n" | |
741 | " <digest_hex_string>\n" | |
742 | " pcr_read index addr count\n" | |
743 | " - Read <count> bytes from PCR <index> to memory address <addr>.\n" | |
be6c1529 RP |
744 | #ifdef CONFIG_TPM_AUTH_SESSIONS |
745 | "Authorization Sessions\n" | |
746 | " oiap\n" | |
747 | " - setup an OIAP session\n" | |
748 | " end_oiap\n" | |
749 | " - terminates an active OIAP session\n" | |
750 | #endif /* CONFIG_TPM_AUTH_SESSIONS */ | |
8732b070 CC |
751 | "Non-volatile Storage Commands:\n" |
752 | " nv_define_space index permission size\n" | |
753 | " - Establish a space at index <index> with <permission> of <size> bytes.\n" | |
754 | " nv_read_value index addr count\n" | |
755 | " - Read <count> bytes from space <index> to memory address <addr>.\n" | |
756 | " nv_write_value index addr count\n" | |
757 | " - Write <count> bytes from memory address <addr> to space <index>.\n" | |
758 | "Miscellaneous helper functions:\n" | |
759 | " raw_transfer byte_string\n" | |
760 | " - Send a byte string <byte_string> to TPM and print the response.\n" | |
761 | " Non-volatile storage helper functions:\n" | |
762 | " These helper functions treat a non-volatile space as a non-padded\n" | |
763 | " sequence of integer values. These integer values are defined by a type\n" | |
764 | " string, which is a text string of 'bwd' characters: 'b' means a 8-bit\n" | |
765 | " value, 'w' 16-bit value, 'd' 32-bit value. All helper functions take\n" | |
766 | " a type string as their first argument.\n" | |
767 | " nv_define type_string index perm\n" | |
768 | " - Define a space <index> with permission <perm>.\n" | |
769 | " nv_read types_string index vars...\n" | |
770 | " - Read from space <index> to environment variables <vars...>.\n" | |
771 | " nv_write types_string index values...\n" | |
772 | " - Write to space <index> from values <values...>.\n" | |
eea3f4d3 | 773 | ); |