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Commit | Line | Data |
---|---|---|
aa0c7a86 | 1 | /* |
4acd2d24 | 2 | * Image manipulator for Marvell SoCs |
a1b6b0a9 | 3 | * supports Kirkwood, Dove, Armada 370, Armada XP, and Armada 38x |
4acd2d24 SR |
4 | * |
5 | * (C) Copyright 2013 Thomas Petazzoni | |
6 | * <thomas.petazzoni@free-electrons.com> | |
aa0c7a86 | 7 | * |
1a459660 | 8 | * SPDX-License-Identifier: GPL-2.0+ |
4acd2d24 | 9 | * |
a1b6b0a9 | 10 | * Not implemented: support for the register headers in v1 images |
aa0c7a86 PW |
11 | */ |
12 | ||
f86ed6a8 | 13 | #include "imagetool.h" |
e5f1a586 | 14 | #include <limits.h> |
aa0c7a86 | 15 | #include <image.h> |
a1b6b0a9 | 16 | #include <stdarg.h> |
4acd2d24 | 17 | #include <stdint.h> |
aa0c7a86 PW |
18 | #include "kwbimage.h" |
19 | ||
a1b6b0a9 | 20 | #ifdef CONFIG_KWB_SECURE |
e15843b1 | 21 | #include <openssl/bn.h> |
a1b6b0a9 MS |
22 | #include <openssl/rsa.h> |
23 | #include <openssl/pem.h> | |
24 | #include <openssl/err.h> | |
25 | #include <openssl/evp.h> | |
e15843b1 | 26 | |
a2d5efd7 JG |
27 | #if OPENSSL_VERSION_NUMBER < 0x10100000L || \ |
28 | (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL) | |
e15843b1 JW |
29 | static void RSA_get0_key(const RSA *r, |
30 | const BIGNUM **n, const BIGNUM **e, const BIGNUM **d) | |
31 | { | |
32 | if (n != NULL) | |
33 | *n = r->n; | |
34 | if (e != NULL) | |
35 | *e = r->e; | |
36 | if (d != NULL) | |
37 | *d = r->d; | |
38 | } | |
39 | ||
a2d5efd7 | 40 | #elif !defined(LIBRESSL_VERSION_NUMBER) |
e15843b1 JW |
41 | void EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx) |
42 | { | |
43 | EVP_MD_CTX_reset(ctx); | |
44 | } | |
45 | #endif | |
a1b6b0a9 MS |
46 | #endif |
47 | ||
4acd2d24 SR |
48 | static struct image_cfg_element *image_cfg; |
49 | static int cfgn; | |
a1b6b0a9 MS |
50 | #ifdef CONFIG_KWB_SECURE |
51 | static int verbose_mode; | |
52 | #endif | |
4acd2d24 SR |
53 | |
54 | struct boot_mode { | |
55 | unsigned int id; | |
56 | const char *name; | |
57 | }; | |
58 | ||
a1b6b0a9 MS |
59 | /* |
60 | * SHA2-256 hash | |
61 | */ | |
62 | struct hash_v1 { | |
63 | uint8_t hash[32]; | |
64 | }; | |
65 | ||
4acd2d24 SR |
66 | struct boot_mode boot_modes[] = { |
67 | { 0x4D, "i2c" }, | |
68 | { 0x5A, "spi" }, | |
69 | { 0x8B, "nand" }, | |
70 | { 0x78, "sata" }, | |
71 | { 0x9C, "pex" }, | |
72 | { 0x69, "uart" }, | |
1bbe63c3 | 73 | { 0xAE, "sdio" }, |
4acd2d24 | 74 | {}, |
aa0c7a86 PW |
75 | }; |
76 | ||
4acd2d24 SR |
77 | struct nand_ecc_mode { |
78 | unsigned int id; | |
79 | const char *name; | |
80 | }; | |
81 | ||
82 | struct nand_ecc_mode nand_ecc_modes[] = { | |
83 | { 0x00, "default" }, | |
84 | { 0x01, "hamming" }, | |
85 | { 0x02, "rs" }, | |
86 | { 0x03, "disabled" }, | |
87 | {}, | |
88 | }; | |
89 | ||
90 | /* Used to identify an undefined execution or destination address */ | |
91 | #define ADDR_INVALID ((uint32_t)-1) | |
92 | ||
93 | #define BINARY_MAX_ARGS 8 | |
94 | ||
95 | /* In-memory representation of a line of the configuration file */ | |
4991b4f7 MS |
96 | |
97 | enum image_cfg_type { | |
98 | IMAGE_CFG_VERSION = 0x1, | |
99 | IMAGE_CFG_BOOT_FROM, | |
100 | IMAGE_CFG_DEST_ADDR, | |
101 | IMAGE_CFG_EXEC_ADDR, | |
102 | IMAGE_CFG_NAND_BLKSZ, | |
103 | IMAGE_CFG_NAND_BADBLK_LOCATION, | |
104 | IMAGE_CFG_NAND_ECC_MODE, | |
105 | IMAGE_CFG_NAND_PAGESZ, | |
106 | IMAGE_CFG_BINARY, | |
107 | IMAGE_CFG_PAYLOAD, | |
108 | IMAGE_CFG_DATA, | |
109 | IMAGE_CFG_BAUDRATE, | |
110 | IMAGE_CFG_DEBUG, | |
a1b6b0a9 MS |
111 | IMAGE_CFG_KAK, |
112 | IMAGE_CFG_CSK, | |
113 | IMAGE_CFG_CSK_INDEX, | |
114 | IMAGE_CFG_JTAG_DELAY, | |
115 | IMAGE_CFG_BOX_ID, | |
116 | IMAGE_CFG_FLASH_ID, | |
117 | IMAGE_CFG_SEC_COMMON_IMG, | |
118 | IMAGE_CFG_SEC_SPECIALIZED_IMG, | |
119 | IMAGE_CFG_SEC_BOOT_DEV, | |
120 | IMAGE_CFG_SEC_FUSE_DUMP, | |
4991b4f7 MS |
121 | |
122 | IMAGE_CFG_COUNT | |
123 | } type; | |
124 | ||
125 | static const char * const id_strs[] = { | |
126 | [IMAGE_CFG_VERSION] = "VERSION", | |
127 | [IMAGE_CFG_BOOT_FROM] = "BOOT_FROM", | |
128 | [IMAGE_CFG_DEST_ADDR] = "DEST_ADDR", | |
129 | [IMAGE_CFG_EXEC_ADDR] = "EXEC_ADDR", | |
130 | [IMAGE_CFG_NAND_BLKSZ] = "NAND_BLKSZ", | |
131 | [IMAGE_CFG_NAND_BADBLK_LOCATION] = "NAND_BADBLK_LOCATION", | |
132 | [IMAGE_CFG_NAND_ECC_MODE] = "NAND_ECC_MODE", | |
133 | [IMAGE_CFG_NAND_PAGESZ] = "NAND_PAGE_SIZE", | |
134 | [IMAGE_CFG_BINARY] = "BINARY", | |
135 | [IMAGE_CFG_PAYLOAD] = "PAYLOAD", | |
136 | [IMAGE_CFG_DATA] = "DATA", | |
137 | [IMAGE_CFG_BAUDRATE] = "BAUDRATE", | |
138 | [IMAGE_CFG_DEBUG] = "DEBUG", | |
a1b6b0a9 MS |
139 | [IMAGE_CFG_KAK] = "KAK", |
140 | [IMAGE_CFG_CSK] = "CSK", | |
141 | [IMAGE_CFG_CSK_INDEX] = "CSK_INDEX", | |
142 | [IMAGE_CFG_JTAG_DELAY] = "JTAG_DELAY", | |
143 | [IMAGE_CFG_BOX_ID] = "BOX_ID", | |
144 | [IMAGE_CFG_FLASH_ID] = "FLASH_ID", | |
145 | [IMAGE_CFG_SEC_COMMON_IMG] = "SEC_COMMON_IMG", | |
146 | [IMAGE_CFG_SEC_SPECIALIZED_IMG] = "SEC_SPECIALIZED_IMG", | |
147 | [IMAGE_CFG_SEC_BOOT_DEV] = "SEC_BOOT_DEV", | |
148 | [IMAGE_CFG_SEC_FUSE_DUMP] = "SEC_FUSE_DUMP" | |
4991b4f7 MS |
149 | }; |
150 | ||
4acd2d24 | 151 | struct image_cfg_element { |
4991b4f7 | 152 | enum image_cfg_type type; |
4acd2d24 SR |
153 | union { |
154 | unsigned int version; | |
155 | unsigned int bootfrom; | |
156 | struct { | |
157 | const char *file; | |
158 | unsigned int args[BINARY_MAX_ARGS]; | |
159 | unsigned int nargs; | |
160 | } binary; | |
161 | const char *payload; | |
162 | unsigned int dstaddr; | |
163 | unsigned int execaddr; | |
164 | unsigned int nandblksz; | |
165 | unsigned int nandbadblklocation; | |
166 | unsigned int nandeccmode; | |
167 | unsigned int nandpagesz; | |
168 | struct ext_hdr_v0_reg regdata; | |
4bdb5479 | 169 | unsigned int baudrate; |
2611c05e | 170 | unsigned int debug; |
a1b6b0a9 MS |
171 | const char *key_name; |
172 | int csk_idx; | |
173 | uint8_t jtag_delay; | |
174 | uint32_t boxid; | |
175 | uint32_t flashid; | |
176 | bool sec_specialized_img; | |
177 | unsigned int sec_boot_dev; | |
178 | const char *name; | |
4acd2d24 SR |
179 | }; |
180 | }; | |
181 | ||
182 | #define IMAGE_CFG_ELEMENT_MAX 256 | |
aa0c7a86 | 183 | |
4acd2d24 SR |
184 | /* |
185 | * Utility functions to manipulate boot mode and ecc modes (convert | |
186 | * them back and forth between description strings and the | |
187 | * corresponding numerical identifiers). | |
188 | */ | |
189 | ||
190 | static const char *image_boot_mode_name(unsigned int id) | |
191 | { | |
192 | int i; | |
94490a4a | 193 | |
4acd2d24 SR |
194 | for (i = 0; boot_modes[i].name; i++) |
195 | if (boot_modes[i].id == id) | |
196 | return boot_modes[i].name; | |
197 | return NULL; | |
198 | } | |
199 | ||
200 | int image_boot_mode_id(const char *boot_mode_name) | |
201 | { | |
202 | int i; | |
94490a4a | 203 | |
4acd2d24 SR |
204 | for (i = 0; boot_modes[i].name; i++) |
205 | if (!strcmp(boot_modes[i].name, boot_mode_name)) | |
206 | return boot_modes[i].id; | |
207 | ||
208 | return -1; | |
209 | } | |
210 | ||
211 | int image_nand_ecc_mode_id(const char *nand_ecc_mode_name) | |
212 | { | |
213 | int i; | |
94490a4a | 214 | |
4acd2d24 SR |
215 | for (i = 0; nand_ecc_modes[i].name; i++) |
216 | if (!strcmp(nand_ecc_modes[i].name, nand_ecc_mode_name)) | |
217 | return nand_ecc_modes[i].id; | |
218 | return -1; | |
aa0c7a86 PW |
219 | } |
220 | ||
4acd2d24 SR |
221 | static struct image_cfg_element * |
222 | image_find_option(unsigned int optiontype) | |
aa0c7a86 | 223 | { |
4acd2d24 | 224 | int i; |
aa0c7a86 | 225 | |
4acd2d24 SR |
226 | for (i = 0; i < cfgn; i++) { |
227 | if (image_cfg[i].type == optiontype) | |
228 | return &image_cfg[i]; | |
aa0c7a86 | 229 | } |
4acd2d24 SR |
230 | |
231 | return NULL; | |
232 | } | |
233 | ||
234 | static unsigned int | |
235 | image_count_options(unsigned int optiontype) | |
236 | { | |
237 | int i; | |
238 | unsigned int count = 0; | |
239 | ||
240 | for (i = 0; i < cfgn; i++) | |
241 | if (image_cfg[i].type == optiontype) | |
242 | count++; | |
243 | ||
244 | return count; | |
aa0c7a86 PW |
245 | } |
246 | ||
a1b6b0a9 MS |
247 | #if defined(CONFIG_KWB_SECURE) |
248 | ||
249 | static int image_get_csk_index(void) | |
250 | { | |
251 | struct image_cfg_element *e; | |
252 | ||
253 | e = image_find_option(IMAGE_CFG_CSK_INDEX); | |
254 | if (!e) | |
255 | return -1; | |
256 | ||
257 | return e->csk_idx; | |
258 | } | |
259 | ||
260 | static bool image_get_spezialized_img(void) | |
261 | { | |
262 | struct image_cfg_element *e; | |
263 | ||
264 | e = image_find_option(IMAGE_CFG_SEC_SPECIALIZED_IMG); | |
265 | if (!e) | |
266 | return false; | |
267 | ||
268 | return e->sec_specialized_img; | |
269 | } | |
270 | ||
271 | #endif | |
272 | ||
aa0c7a86 | 273 | /* |
4acd2d24 SR |
274 | * Compute a 8-bit checksum of a memory area. This algorithm follows |
275 | * the requirements of the Marvell SoC BootROM specifications. | |
aa0c7a86 | 276 | */ |
4acd2d24 | 277 | static uint8_t image_checksum8(void *start, uint32_t len) |
aa0c7a86 | 278 | { |
4acd2d24 SR |
279 | uint8_t csum = 0; |
280 | uint8_t *p = start; | |
aa0c7a86 PW |
281 | |
282 | /* check len and return zero checksum if invalid */ | |
283 | if (!len) | |
284 | return 0; | |
285 | ||
286 | do { | |
4acd2d24 | 287 | csum += *p; |
aa0c7a86 PW |
288 | p++; |
289 | } while (--len); | |
4acd2d24 SR |
290 | |
291 | return csum; | |
aa0c7a86 PW |
292 | } |
293 | ||
db7cd4ed BS |
294 | size_t kwbimage_header_size(unsigned char *ptr) |
295 | { | |
296 | if (image_version((void *)ptr) == 0) | |
297 | return sizeof(struct main_hdr_v0); | |
298 | else | |
299 | return KWBHEADER_V1_SIZE((struct main_hdr_v1 *)ptr); | |
300 | } | |
301 | ||
302 | /* | |
303 | * Verify checksum over a complete header that includes the checksum field. | |
304 | * Return 1 when OK, otherwise 0. | |
305 | */ | |
306 | static int main_hdr_checksum_ok(void *hdr) | |
307 | { | |
308 | /* Offsets of checksum in v0 and v1 headers are the same */ | |
309 | struct main_hdr_v0 *main_hdr = (struct main_hdr_v0 *)hdr; | |
310 | uint8_t checksum; | |
311 | ||
312 | checksum = image_checksum8(hdr, kwbimage_header_size(hdr)); | |
313 | /* Calculated checksum includes the header checksum field. Compensate | |
314 | * for that. | |
315 | */ | |
316 | checksum -= main_hdr->checksum; | |
317 | ||
318 | return checksum == main_hdr->checksum; | |
319 | } | |
320 | ||
4acd2d24 | 321 | static uint32_t image_checksum32(void *start, uint32_t len) |
aa0c7a86 | 322 | { |
4acd2d24 SR |
323 | uint32_t csum = 0; |
324 | uint32_t *p = start; | |
aa0c7a86 PW |
325 | |
326 | /* check len and return zero checksum if invalid */ | |
327 | if (!len) | |
328 | return 0; | |
329 | ||
330 | if (len % sizeof(uint32_t)) { | |
4acd2d24 SR |
331 | fprintf(stderr, "Length %d is not in multiple of %zu\n", |
332 | len, sizeof(uint32_t)); | |
aa0c7a86 PW |
333 | return 0; |
334 | } | |
335 | ||
336 | do { | |
4acd2d24 | 337 | csum += *p; |
aa0c7a86 PW |
338 | p++; |
339 | len -= sizeof(uint32_t); | |
340 | } while (len > 0); | |
4acd2d24 SR |
341 | |
342 | return csum; | |
aa0c7a86 PW |
343 | } |
344 | ||
4bdb5479 CP |
345 | static uint8_t baudrate_to_option(unsigned int baudrate) |
346 | { | |
347 | switch (baudrate) { | |
348 | case 2400: | |
349 | return MAIN_HDR_V1_OPT_BAUD_2400; | |
350 | case 4800: | |
351 | return MAIN_HDR_V1_OPT_BAUD_4800; | |
352 | case 9600: | |
353 | return MAIN_HDR_V1_OPT_BAUD_9600; | |
354 | case 19200: | |
355 | return MAIN_HDR_V1_OPT_BAUD_19200; | |
356 | case 38400: | |
357 | return MAIN_HDR_V1_OPT_BAUD_38400; | |
358 | case 57600: | |
359 | return MAIN_HDR_V1_OPT_BAUD_57600; | |
360 | case 115200: | |
361 | return MAIN_HDR_V1_OPT_BAUD_115200; | |
362 | default: | |
363 | return MAIN_HDR_V1_OPT_BAUD_DEFAULT; | |
364 | } | |
365 | } | |
366 | ||
a1b6b0a9 MS |
367 | #if defined(CONFIG_KWB_SECURE) |
368 | static void kwb_msg(const char *fmt, ...) | |
369 | { | |
370 | if (verbose_mode) { | |
371 | va_list ap; | |
372 | ||
373 | va_start(ap, fmt); | |
374 | vfprintf(stdout, fmt, ap); | |
375 | va_end(ap); | |
376 | } | |
377 | } | |
378 | ||
379 | static int openssl_err(const char *msg) | |
380 | { | |
381 | unsigned long ssl_err = ERR_get_error(); | |
382 | ||
383 | fprintf(stderr, "%s", msg); | |
384 | fprintf(stderr, ": %s\n", | |
385 | ERR_error_string(ssl_err, 0)); | |
386 | ||
387 | return -1; | |
388 | } | |
389 | ||
390 | static int kwb_load_rsa_key(const char *keydir, const char *name, RSA **p_rsa) | |
391 | { | |
392 | char path[PATH_MAX]; | |
393 | RSA *rsa; | |
394 | FILE *f; | |
395 | ||
396 | if (!keydir) | |
397 | keydir = "."; | |
398 | ||
399 | snprintf(path, sizeof(path), "%s/%s.key", keydir, name); | |
400 | f = fopen(path, "r"); | |
401 | if (!f) { | |
402 | fprintf(stderr, "Couldn't open RSA private key: '%s': %s\n", | |
403 | path, strerror(errno)); | |
404 | return -ENOENT; | |
405 | } | |
406 | ||
407 | rsa = PEM_read_RSAPrivateKey(f, 0, NULL, ""); | |
408 | if (!rsa) { | |
409 | openssl_err("Failure reading private key"); | |
410 | fclose(f); | |
411 | return -EPROTO; | |
412 | } | |
413 | fclose(f); | |
414 | *p_rsa = rsa; | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | static int kwb_load_cfg_key(struct image_tool_params *params, | |
420 | unsigned int cfg_option, const char *key_name, | |
421 | RSA **p_key) | |
422 | { | |
423 | struct image_cfg_element *e_key; | |
424 | RSA *key; | |
425 | int res; | |
426 | ||
427 | *p_key = NULL; | |
428 | ||
429 | e_key = image_find_option(cfg_option); | |
430 | if (!e_key) { | |
431 | fprintf(stderr, "%s not configured\n", key_name); | |
432 | return -ENOENT; | |
433 | } | |
434 | ||
435 | res = kwb_load_rsa_key(params->keydir, e_key->key_name, &key); | |
436 | if (res < 0) { | |
437 | fprintf(stderr, "Failed to load %s\n", key_name); | |
438 | return -ENOENT; | |
439 | } | |
440 | ||
441 | *p_key = key; | |
442 | ||
443 | return 0; | |
444 | } | |
445 | ||
446 | static int kwb_load_kak(struct image_tool_params *params, RSA **p_kak) | |
447 | { | |
448 | return kwb_load_cfg_key(params, IMAGE_CFG_KAK, "KAK", p_kak); | |
449 | } | |
450 | ||
451 | static int kwb_load_csk(struct image_tool_params *params, RSA **p_csk) | |
452 | { | |
453 | return kwb_load_cfg_key(params, IMAGE_CFG_CSK, "CSK", p_csk); | |
454 | } | |
455 | ||
456 | static int kwb_compute_pubkey_hash(struct pubkey_der_v1 *pk, | |
457 | struct hash_v1 *hash) | |
458 | { | |
459 | EVP_MD_CTX *ctx; | |
460 | unsigned int key_size; | |
461 | unsigned int hash_size; | |
462 | int ret = 0; | |
463 | ||
464 | if (!pk || !hash || pk->key[0] != 0x30 || pk->key[1] != 0x82) | |
465 | return -EINVAL; | |
466 | ||
467 | key_size = (pk->key[2] << 8) + pk->key[3] + 4; | |
468 | ||
469 | ctx = EVP_MD_CTX_create(); | |
470 | if (!ctx) | |
471 | return openssl_err("EVP context creation failed"); | |
472 | ||
473 | EVP_MD_CTX_init(ctx); | |
474 | if (!EVP_DigestInit(ctx, EVP_sha256())) { | |
475 | ret = openssl_err("Digest setup failed"); | |
476 | goto hash_err_ctx; | |
477 | } | |
478 | ||
479 | if (!EVP_DigestUpdate(ctx, pk->key, key_size)) { | |
480 | ret = openssl_err("Hashing data failed"); | |
481 | goto hash_err_ctx; | |
482 | } | |
483 | ||
484 | if (!EVP_DigestFinal(ctx, hash->hash, &hash_size)) { | |
485 | ret = openssl_err("Could not obtain hash"); | |
486 | goto hash_err_ctx; | |
487 | } | |
488 | ||
489 | EVP_MD_CTX_cleanup(ctx); | |
490 | ||
491 | hash_err_ctx: | |
492 | EVP_MD_CTX_destroy(ctx); | |
493 | return ret; | |
494 | } | |
495 | ||
496 | static int kwb_import_pubkey(RSA **key, struct pubkey_der_v1 *src, char *keyname) | |
497 | { | |
498 | RSA *rsa; | |
499 | const unsigned char *ptr; | |
500 | ||
501 | if (!key || !src) | |
502 | goto fail; | |
503 | ||
504 | ptr = src->key; | |
505 | rsa = d2i_RSAPublicKey(key, &ptr, sizeof(src->key)); | |
506 | if (!rsa) { | |
507 | openssl_err("error decoding public key"); | |
508 | goto fail; | |
509 | } | |
510 | ||
511 | return 0; | |
512 | fail: | |
513 | fprintf(stderr, "Failed to decode %s pubkey\n", keyname); | |
514 | return -EINVAL; | |
515 | } | |
516 | ||
517 | static int kwb_export_pubkey(RSA *key, struct pubkey_der_v1 *dst, FILE *hashf, | |
518 | char *keyname) | |
519 | { | |
520 | int size_exp, size_mod, size_seq; | |
e15843b1 | 521 | const BIGNUM *key_e, *key_n; |
a1b6b0a9 MS |
522 | uint8_t *cur; |
523 | char *errmsg = "Failed to encode %s\n"; | |
524 | ||
e15843b1 JW |
525 | RSA_get0_key(key, NULL, &key_e, NULL); |
526 | RSA_get0_key(key, &key_n, NULL, NULL); | |
527 | ||
528 | if (!key || !key_e || !key_n || !dst) { | |
a1b6b0a9 | 529 | fprintf(stderr, "export pk failed: (%p, %p, %p, %p)", |
e15843b1 | 530 | key, key_e, key_n, dst); |
a1b6b0a9 MS |
531 | fprintf(stderr, errmsg, keyname); |
532 | return -EINVAL; | |
533 | } | |
534 | ||
535 | /* | |
536 | * According to the specs, the key should be PKCS#1 DER encoded. | |
537 | * But unfortunately the really required encoding seems to be different; | |
538 | * it violates DER...! (But it still conformes to BER.) | |
539 | * (Length always in long form w/ 2 byte length code; no leading zero | |
540 | * when MSB of first byte is set...) | |
541 | * So we cannot use the encoding func provided by OpenSSL and have to | |
542 | * do the encoding manually. | |
543 | */ | |
544 | ||
e15843b1 JW |
545 | size_exp = BN_num_bytes(key_e); |
546 | size_mod = BN_num_bytes(key_n); | |
a1b6b0a9 MS |
547 | size_seq = 4 + size_mod + 4 + size_exp; |
548 | ||
549 | if (size_mod > 256) { | |
550 | fprintf(stderr, "export pk failed: wrong mod size: %d\n", | |
551 | size_mod); | |
552 | fprintf(stderr, errmsg, keyname); | |
553 | return -EINVAL; | |
554 | } | |
555 | ||
556 | if (4 + size_seq > sizeof(dst->key)) { | |
557 | fprintf(stderr, "export pk failed: seq too large (%d, %lu)\n", | |
558 | 4 + size_seq, sizeof(dst->key)); | |
559 | fprintf(stderr, errmsg, keyname); | |
560 | return -ENOBUFS; | |
561 | } | |
562 | ||
563 | cur = dst->key; | |
564 | ||
565 | /* PKCS#1 (RFC3447) RSAPublicKey structure */ | |
566 | *cur++ = 0x30; /* SEQUENCE */ | |
567 | *cur++ = 0x82; | |
568 | *cur++ = (size_seq >> 8) & 0xFF; | |
569 | *cur++ = size_seq & 0xFF; | |
570 | /* Modulus */ | |
571 | *cur++ = 0x02; /* INTEGER */ | |
572 | *cur++ = 0x82; | |
573 | *cur++ = (size_mod >> 8) & 0xFF; | |
574 | *cur++ = size_mod & 0xFF; | |
e15843b1 | 575 | BN_bn2bin(key_n, cur); |
a1b6b0a9 MS |
576 | cur += size_mod; |
577 | /* Exponent */ | |
578 | *cur++ = 0x02; /* INTEGER */ | |
579 | *cur++ = 0x82; | |
580 | *cur++ = (size_exp >> 8) & 0xFF; | |
581 | *cur++ = size_exp & 0xFF; | |
e15843b1 | 582 | BN_bn2bin(key_e, cur); |
a1b6b0a9 MS |
583 | |
584 | if (hashf) { | |
585 | struct hash_v1 pk_hash; | |
586 | int i; | |
587 | int ret = 0; | |
588 | ||
589 | ret = kwb_compute_pubkey_hash(dst, &pk_hash); | |
590 | if (ret < 0) { | |
591 | fprintf(stderr, errmsg, keyname); | |
592 | return ret; | |
593 | } | |
594 | ||
595 | fprintf(hashf, "SHA256 = "); | |
596 | for (i = 0 ; i < sizeof(pk_hash.hash); ++i) | |
597 | fprintf(hashf, "%02X", pk_hash.hash[i]); | |
598 | fprintf(hashf, "\n"); | |
599 | } | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | int kwb_sign(RSA *key, void *data, int datasz, struct sig_v1 *sig, char *signame) | |
605 | { | |
606 | EVP_PKEY *evp_key; | |
607 | EVP_MD_CTX *ctx; | |
608 | unsigned int sig_size; | |
609 | int size; | |
610 | int ret = 0; | |
611 | ||
612 | evp_key = EVP_PKEY_new(); | |
613 | if (!evp_key) | |
614 | return openssl_err("EVP_PKEY object creation failed"); | |
615 | ||
616 | if (!EVP_PKEY_set1_RSA(evp_key, key)) { | |
617 | ret = openssl_err("EVP key setup failed"); | |
618 | goto err_key; | |
619 | } | |
620 | ||
621 | size = EVP_PKEY_size(evp_key); | |
622 | if (size > sizeof(sig->sig)) { | |
623 | fprintf(stderr, "Buffer to small for signature (%d bytes)\n", | |
624 | size); | |
625 | ret = -ENOBUFS; | |
626 | goto err_key; | |
627 | } | |
628 | ||
629 | ctx = EVP_MD_CTX_create(); | |
630 | if (!ctx) { | |
631 | ret = openssl_err("EVP context creation failed"); | |
632 | goto err_key; | |
633 | } | |
634 | EVP_MD_CTX_init(ctx); | |
635 | if (!EVP_SignInit(ctx, EVP_sha256())) { | |
636 | ret = openssl_err("Signer setup failed"); | |
637 | goto err_ctx; | |
638 | } | |
639 | ||
640 | if (!EVP_SignUpdate(ctx, data, datasz)) { | |
641 | ret = openssl_err("Signing data failed"); | |
642 | goto err_ctx; | |
643 | } | |
644 | ||
645 | if (!EVP_SignFinal(ctx, sig->sig, &sig_size, evp_key)) { | |
646 | ret = openssl_err("Could not obtain signature"); | |
647 | goto err_ctx; | |
648 | } | |
649 | ||
650 | EVP_MD_CTX_cleanup(ctx); | |
651 | EVP_MD_CTX_destroy(ctx); | |
652 | EVP_PKEY_free(evp_key); | |
653 | ||
654 | return 0; | |
655 | ||
656 | err_ctx: | |
657 | EVP_MD_CTX_destroy(ctx); | |
658 | err_key: | |
659 | EVP_PKEY_free(evp_key); | |
660 | fprintf(stderr, "Failed to create %s signature\n", signame); | |
661 | return ret; | |
662 | } | |
663 | ||
664 | int kwb_verify(RSA *key, void *data, int datasz, struct sig_v1 *sig, | |
665 | char *signame) | |
666 | { | |
667 | EVP_PKEY *evp_key; | |
668 | EVP_MD_CTX *ctx; | |
669 | int size; | |
670 | int ret = 0; | |
671 | ||
672 | evp_key = EVP_PKEY_new(); | |
673 | if (!evp_key) | |
674 | return openssl_err("EVP_PKEY object creation failed"); | |
675 | ||
676 | if (!EVP_PKEY_set1_RSA(evp_key, key)) { | |
677 | ret = openssl_err("EVP key setup failed"); | |
678 | goto err_key; | |
679 | } | |
680 | ||
681 | size = EVP_PKEY_size(evp_key); | |
682 | if (size > sizeof(sig->sig)) { | |
683 | fprintf(stderr, "Invalid signature size (%d bytes)\n", | |
684 | size); | |
685 | ret = -EINVAL; | |
686 | goto err_key; | |
687 | } | |
688 | ||
689 | ctx = EVP_MD_CTX_create(); | |
690 | if (!ctx) { | |
691 | ret = openssl_err("EVP context creation failed"); | |
692 | goto err_key; | |
693 | } | |
694 | EVP_MD_CTX_init(ctx); | |
695 | if (!EVP_VerifyInit(ctx, EVP_sha256())) { | |
696 | ret = openssl_err("Verifier setup failed"); | |
697 | goto err_ctx; | |
698 | } | |
699 | ||
700 | if (!EVP_VerifyUpdate(ctx, data, datasz)) { | |
701 | ret = openssl_err("Hashing data failed"); | |
702 | goto err_ctx; | |
703 | } | |
704 | ||
705 | if (!EVP_VerifyFinal(ctx, sig->sig, sizeof(sig->sig), evp_key)) { | |
706 | ret = openssl_err("Could not verify signature"); | |
707 | goto err_ctx; | |
708 | } | |
709 | ||
710 | EVP_MD_CTX_cleanup(ctx); | |
711 | EVP_MD_CTX_destroy(ctx); | |
712 | EVP_PKEY_free(evp_key); | |
713 | ||
714 | return 0; | |
715 | ||
716 | err_ctx: | |
717 | EVP_MD_CTX_destroy(ctx); | |
718 | err_key: | |
719 | EVP_PKEY_free(evp_key); | |
720 | fprintf(stderr, "Failed to verify %s signature\n", signame); | |
721 | return ret; | |
722 | } | |
723 | ||
724 | int kwb_sign_and_verify(RSA *key, void *data, int datasz, struct sig_v1 *sig, | |
725 | char *signame) | |
726 | { | |
727 | if (kwb_sign(key, data, datasz, sig, signame) < 0) | |
728 | return -1; | |
729 | ||
730 | if (kwb_verify(key, data, datasz, sig, signame) < 0) | |
731 | return -1; | |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
736 | ||
737 | int kwb_dump_fuse_cmds_38x(FILE *out, struct secure_hdr_v1 *sec_hdr) | |
738 | { | |
739 | struct hash_v1 kak_pub_hash; | |
740 | struct image_cfg_element *e; | |
741 | unsigned int fuse_line; | |
742 | int i, idx; | |
743 | uint8_t *ptr; | |
744 | uint32_t val; | |
745 | int ret = 0; | |
746 | ||
747 | if (!out || !sec_hdr) | |
748 | return -EINVAL; | |
749 | ||
750 | ret = kwb_compute_pubkey_hash(&sec_hdr->kak, &kak_pub_hash); | |
751 | if (ret < 0) | |
752 | goto done; | |
753 | ||
754 | fprintf(out, "# burn KAK pub key hash\n"); | |
755 | ptr = kak_pub_hash.hash; | |
756 | for (fuse_line = 26; fuse_line <= 30; ++fuse_line) { | |
757 | fprintf(out, "fuse prog -y %u 0 ", fuse_line); | |
758 | ||
759 | for (i = 4; i-- > 0;) | |
760 | fprintf(out, "%02hx", (ushort)ptr[i]); | |
761 | ptr += 4; | |
762 | fprintf(out, " 00"); | |
763 | ||
764 | if (fuse_line < 30) { | |
765 | for (i = 3; i-- > 0;) | |
766 | fprintf(out, "%02hx", (ushort)ptr[i]); | |
767 | ptr += 3; | |
768 | } else { | |
769 | fprintf(out, "000000"); | |
770 | } | |
771 | ||
772 | fprintf(out, " 1\n"); | |
773 | } | |
774 | ||
775 | fprintf(out, "# burn CSK selection\n"); | |
776 | ||
777 | idx = image_get_csk_index(); | |
778 | if (idx < 0 || idx > 15) { | |
779 | ret = -EINVAL; | |
780 | goto done; | |
781 | } | |
782 | if (idx > 0) { | |
783 | for (fuse_line = 31; fuse_line < 31 + idx; ++fuse_line) | |
784 | fprintf(out, "fuse prog -y %u 0 00000001 00000000 1\n", | |
785 | fuse_line); | |
786 | } else { | |
787 | fprintf(out, "# CSK index is 0; no mods needed\n"); | |
788 | } | |
789 | ||
790 | e = image_find_option(IMAGE_CFG_BOX_ID); | |
791 | if (e) { | |
792 | fprintf(out, "# set box ID\n"); | |
793 | fprintf(out, "fuse prog -y 48 0 %08x 00000000 1\n", e->boxid); | |
794 | } | |
795 | ||
796 | e = image_find_option(IMAGE_CFG_FLASH_ID); | |
797 | if (e) { | |
798 | fprintf(out, "# set flash ID\n"); | |
799 | fprintf(out, "fuse prog -y 47 0 %08x 00000000 1\n", e->flashid); | |
800 | } | |
801 | ||
802 | fprintf(out, "# enable secure mode "); | |
803 | fprintf(out, "(must be the last fuse line written)\n"); | |
804 | ||
805 | val = 1; | |
806 | e = image_find_option(IMAGE_CFG_SEC_BOOT_DEV); | |
807 | if (!e) { | |
808 | fprintf(stderr, "ERROR: secured mode boot device not given\n"); | |
809 | ret = -EINVAL; | |
810 | goto done; | |
811 | } | |
812 | ||
813 | if (e->sec_boot_dev > 0xff) { | |
814 | fprintf(stderr, "ERROR: secured mode boot device invalid\n"); | |
815 | ret = -EINVAL; | |
816 | goto done; | |
817 | } | |
818 | ||
819 | val |= (e->sec_boot_dev << 8); | |
820 | ||
821 | fprintf(out, "fuse prog -y 24 0 %08x 0103e0a9 1\n", val); | |
822 | ||
823 | fprintf(out, "# lock (unused) fuse lines (0-23)s\n"); | |
824 | for (fuse_line = 0; fuse_line < 24; ++fuse_line) | |
825 | fprintf(out, "fuse prog -y %u 2 1\n", fuse_line); | |
826 | ||
827 | fprintf(out, "# OK, that's all :-)\n"); | |
828 | ||
829 | done: | |
830 | return ret; | |
831 | } | |
832 | ||
833 | static int kwb_dump_fuse_cmds(struct secure_hdr_v1 *sec_hdr) | |
834 | { | |
835 | int ret = 0; | |
836 | struct image_cfg_element *e; | |
837 | ||
838 | e = image_find_option(IMAGE_CFG_SEC_FUSE_DUMP); | |
839 | if (!e) | |
840 | return 0; | |
841 | ||
842 | if (!strcmp(e->name, "a38x")) { | |
843 | FILE *out = fopen("kwb_fuses_a38x.txt", "w+"); | |
844 | ||
845 | kwb_dump_fuse_cmds_38x(out, sec_hdr); | |
846 | fclose(out); | |
847 | goto done; | |
848 | } | |
849 | ||
850 | ret = -ENOSYS; | |
851 | ||
852 | done: | |
853 | return ret; | |
854 | } | |
855 | ||
856 | #endif | |
857 | ||
4acd2d24 SR |
858 | static void *image_create_v0(size_t *imagesz, struct image_tool_params *params, |
859 | int payloadsz) | |
aa0c7a86 | 860 | { |
4acd2d24 SR |
861 | struct image_cfg_element *e; |
862 | size_t headersz; | |
863 | struct main_hdr_v0 *main_hdr; | |
885fba15 | 864 | uint8_t *image; |
4acd2d24 SR |
865 | int has_ext = 0; |
866 | ||
867 | /* | |
868 | * Calculate the size of the header and the size of the | |
869 | * payload | |
870 | */ | |
871 | headersz = sizeof(struct main_hdr_v0); | |
872 | ||
873 | if (image_count_options(IMAGE_CFG_DATA) > 0) { | |
874 | has_ext = 1; | |
875 | headersz += sizeof(struct ext_hdr_v0); | |
876 | } | |
877 | ||
878 | if (image_count_options(IMAGE_CFG_PAYLOAD) > 1) { | |
879 | fprintf(stderr, "More than one payload, not possible\n"); | |
880 | return NULL; | |
881 | } | |
aa0c7a86 | 882 | |
4acd2d24 SR |
883 | image = malloc(headersz); |
884 | if (!image) { | |
885 | fprintf(stderr, "Cannot allocate memory for image\n"); | |
886 | return NULL; | |
aa0c7a86 | 887 | } |
aa0c7a86 | 888 | |
4acd2d24 SR |
889 | memset(image, 0, headersz); |
890 | ||
885fba15 | 891 | main_hdr = (struct main_hdr_v0 *)image; |
4acd2d24 SR |
892 | |
893 | /* Fill in the main header */ | |
a8840dce RP |
894 | main_hdr->blocksize = |
895 | cpu_to_le32(payloadsz + sizeof(uint32_t) - headersz); | |
896 | main_hdr->srcaddr = cpu_to_le32(headersz); | |
4acd2d24 | 897 | main_hdr->ext = has_ext; |
a8840dce RP |
898 | main_hdr->destaddr = cpu_to_le32(params->addr); |
899 | main_hdr->execaddr = cpu_to_le32(params->ep); | |
4acd2d24 SR |
900 | |
901 | e = image_find_option(IMAGE_CFG_BOOT_FROM); | |
902 | if (e) | |
903 | main_hdr->blockid = e->bootfrom; | |
904 | e = image_find_option(IMAGE_CFG_NAND_ECC_MODE); | |
905 | if (e) | |
906 | main_hdr->nandeccmode = e->nandeccmode; | |
907 | e = image_find_option(IMAGE_CFG_NAND_PAGESZ); | |
908 | if (e) | |
a8840dce | 909 | main_hdr->nandpagesize = cpu_to_le16(e->nandpagesz); |
4acd2d24 SR |
910 | main_hdr->checksum = image_checksum8(image, |
911 | sizeof(struct main_hdr_v0)); | |
912 | ||
913 | /* Generate the ext header */ | |
914 | if (has_ext) { | |
e89016c4 | 915 | struct ext_hdr_v0 *ext_hdr; |
4acd2d24 SR |
916 | int cfgi, datai; |
917 | ||
885fba15 MS |
918 | ext_hdr = (struct ext_hdr_v0 *) |
919 | (image + sizeof(struct main_hdr_v0)); | |
a8840dce | 920 | ext_hdr->offset = cpu_to_le32(0x40); |
4acd2d24 SR |
921 | |
922 | for (cfgi = 0, datai = 0; cfgi < cfgn; cfgi++) { | |
923 | e = &image_cfg[cfgi]; | |
924 | if (e->type != IMAGE_CFG_DATA) | |
925 | continue; | |
926 | ||
a8840dce RP |
927 | ext_hdr->rcfg[datai].raddr = |
928 | cpu_to_le32(e->regdata.raddr); | |
929 | ext_hdr->rcfg[datai].rdata = | |
930 | cpu_to_le32(e->regdata.rdata); | |
4acd2d24 SR |
931 | datai++; |
932 | } | |
933 | ||
934 | ext_hdr->checksum = image_checksum8(ext_hdr, | |
935 | sizeof(struct ext_hdr_v0)); | |
936 | } | |
937 | ||
938 | *imagesz = headersz; | |
939 | return image; | |
aa0c7a86 PW |
940 | } |
941 | ||
e93cf53f | 942 | static size_t image_headersz_v1(int *hasext) |
4acd2d24 SR |
943 | { |
944 | struct image_cfg_element *binarye; | |
945 | size_t headersz; | |
4acd2d24 SR |
946 | |
947 | /* | |
948 | * Calculate the size of the header and the size of the | |
949 | * payload | |
950 | */ | |
951 | headersz = sizeof(struct main_hdr_v1); | |
952 | ||
953 | if (image_count_options(IMAGE_CFG_BINARY) > 1) { | |
954 | fprintf(stderr, "More than one binary blob, not supported\n"); | |
955 | return 0; | |
aa0c7a86 PW |
956 | } |
957 | ||
4acd2d24 SR |
958 | if (image_count_options(IMAGE_CFG_PAYLOAD) > 1) { |
959 | fprintf(stderr, "More than one payload, not possible\n"); | |
960 | return 0; | |
961 | } | |
aa0c7a86 | 962 | |
4acd2d24 SR |
963 | binarye = image_find_option(IMAGE_CFG_BINARY); |
964 | if (binarye) { | |
e89016c4 | 965 | int ret; |
4acd2d24 SR |
966 | struct stat s; |
967 | ||
968 | ret = stat(binarye->binary.file, &s); | |
969 | if (ret < 0) { | |
e5f1a586 AB |
970 | char cwd[PATH_MAX]; |
971 | char *dir = cwd; | |
972 | ||
973 | memset(cwd, 0, sizeof(cwd)); | |
974 | if (!getcwd(cwd, sizeof(cwd))) { | |
975 | dir = "current working directory"; | |
976 | perror("getcwd() failed"); | |
977 | } | |
978 | ||
4acd2d24 SR |
979 | fprintf(stderr, |
980 | "Didn't find the file '%s' in '%s' which is mandatory to generate the image\n" | |
981 | "This file generally contains the DDR3 training code, and should be extracted from an existing bootable\n" | |
982 | "image for your board. See 'kwbimage -x' to extract it from an existing image.\n", | |
e5f1a586 | 983 | binarye->binary.file, dir); |
4acd2d24 SR |
984 | return 0; |
985 | } | |
aa0c7a86 | 986 | |
76b391cd RP |
987 | headersz += sizeof(struct opt_hdr_v1) + |
988 | s.st_size + | |
989 | (binarye->binary.nargs + 2) * sizeof(uint32_t); | |
4acd2d24 SR |
990 | if (hasext) |
991 | *hasext = 1; | |
992 | } | |
aa0c7a86 | 993 | |
a1b6b0a9 MS |
994 | #if defined(CONFIG_KWB_SECURE) |
995 | if (image_get_csk_index() >= 0) { | |
996 | headersz += sizeof(struct secure_hdr_v1); | |
997 | if (hasext) | |
998 | *hasext = 1; | |
999 | } | |
1000 | #endif | |
1001 | ||
7ddf8cfb SR |
1002 | #if defined(CONFIG_SYS_U_BOOT_OFFS) |
1003 | if (headersz > CONFIG_SYS_U_BOOT_OFFS) { | |
94490a4a MS |
1004 | fprintf(stderr, |
1005 | "Error: Image header (incl. SPL image) too big!\n"); | |
7ddf8cfb SR |
1006 | fprintf(stderr, "header=0x%x CONFIG_SYS_U_BOOT_OFFS=0x%x!\n", |
1007 | (int)headersz, CONFIG_SYS_U_BOOT_OFFS); | |
1008 | fprintf(stderr, "Increase CONFIG_SYS_U_BOOT_OFFS!\n"); | |
a0aad123 | 1009 | return 0; |
a0aad123 | 1010 | } |
79066ef8 | 1011 | |
94490a4a | 1012 | headersz = CONFIG_SYS_U_BOOT_OFFS; |
a0aad123 KS |
1013 | #endif |
1014 | ||
4acd2d24 SR |
1015 | /* |
1016 | * The payload should be aligned on some reasonable | |
1017 | * boundary | |
1018 | */ | |
1019 | return ALIGN_SUP(headersz, 4096); | |
1020 | } | |
aa0c7a86 | 1021 | |
79066ef8 MS |
1022 | int add_binary_header_v1(uint8_t *cur) |
1023 | { | |
1024 | struct image_cfg_element *binarye; | |
1025 | struct opt_hdr_v1 *hdr = (struct opt_hdr_v1 *)cur; | |
1026 | uint32_t *args; | |
1027 | size_t binhdrsz; | |
1028 | struct stat s; | |
1029 | int argi; | |
1030 | FILE *bin; | |
1031 | int ret; | |
1032 | ||
1033 | binarye = image_find_option(IMAGE_CFG_BINARY); | |
1034 | ||
1035 | if (!binarye) | |
1036 | return 0; | |
1037 | ||
1038 | hdr->headertype = OPT_HDR_V1_BINARY_TYPE; | |
1039 | ||
1040 | bin = fopen(binarye->binary.file, "r"); | |
1041 | if (!bin) { | |
1042 | fprintf(stderr, "Cannot open binary file %s\n", | |
1043 | binarye->binary.file); | |
1044 | return -1; | |
1045 | } | |
1046 | ||
1f6c8a57 MS |
1047 | if (fstat(fileno(bin), &s)) { |
1048 | fprintf(stderr, "Cannot stat binary file %s\n", | |
1049 | binarye->binary.file); | |
1050 | goto err_close; | |
1051 | } | |
79066ef8 MS |
1052 | |
1053 | binhdrsz = sizeof(struct opt_hdr_v1) + | |
1054 | (binarye->binary.nargs + 2) * sizeof(uint32_t) + | |
1055 | s.st_size; | |
1056 | ||
1057 | /* | |
1058 | * The size includes the binary image size, rounded | |
1059 | * up to a 4-byte boundary. Plus 4 bytes for the | |
1060 | * next-header byte and 3-byte alignment at the end. | |
1061 | */ | |
1062 | binhdrsz = ALIGN_SUP(binhdrsz, 4) + 4; | |
1063 | hdr->headersz_lsb = cpu_to_le16(binhdrsz & 0xFFFF); | |
1064 | hdr->headersz_msb = (binhdrsz & 0xFFFF0000) >> 16; | |
1065 | ||
1066 | cur += sizeof(struct opt_hdr_v1); | |
1067 | ||
1068 | args = (uint32_t *)cur; | |
1069 | *args = cpu_to_le32(binarye->binary.nargs); | |
1070 | args++; | |
1071 | for (argi = 0; argi < binarye->binary.nargs; argi++) | |
1072 | args[argi] = cpu_to_le32(binarye->binary.args[argi]); | |
1073 | ||
1074 | cur += (binarye->binary.nargs + 1) * sizeof(uint32_t); | |
1075 | ||
1076 | ret = fread(cur, s.st_size, 1, bin); | |
1077 | if (ret != 1) { | |
1078 | fprintf(stderr, | |
1079 | "Could not read binary image %s\n", | |
1080 | binarye->binary.file); | |
1f6c8a57 | 1081 | goto err_close; |
79066ef8 MS |
1082 | } |
1083 | ||
1084 | fclose(bin); | |
1085 | ||
1086 | cur += ALIGN_SUP(s.st_size, 4); | |
1087 | ||
1088 | /* | |
1089 | * For now, we don't support more than one binary | |
1090 | * header, and no other header types are | |
1091 | * supported. So, the binary header is necessarily the | |
1092 | * last one | |
1093 | */ | |
1094 | *((uint32_t *)cur) = 0x00000000; | |
1095 | ||
1096 | cur += sizeof(uint32_t); | |
1097 | ||
1098 | return 0; | |
1f6c8a57 MS |
1099 | |
1100 | err_close: | |
1101 | fclose(bin); | |
1102 | ||
1103 | return -1; | |
79066ef8 MS |
1104 | } |
1105 | ||
a1b6b0a9 MS |
1106 | #if defined(CONFIG_KWB_SECURE) |
1107 | ||
1108 | int export_pub_kak_hash(RSA *kak, struct secure_hdr_v1 *secure_hdr) | |
1109 | { | |
1110 | FILE *hashf; | |
1111 | int res; | |
1112 | ||
1113 | hashf = fopen("pub_kak_hash.txt", "w"); | |
1114 | ||
1115 | res = kwb_export_pubkey(kak, &secure_hdr->kak, hashf, "KAK"); | |
1116 | ||
1117 | fclose(hashf); | |
1118 | ||
1119 | return res < 0 ? 1 : 0; | |
1120 | } | |
1121 | ||
1122 | int kwb_sign_csk_with_kak(struct image_tool_params *params, | |
1123 | struct secure_hdr_v1 *secure_hdr, RSA *csk) | |
1124 | { | |
1125 | RSA *kak = NULL; | |
1126 | RSA *kak_pub = NULL; | |
1127 | int csk_idx = image_get_csk_index(); | |
1128 | struct sig_v1 tmp_sig; | |
1129 | ||
1130 | if (csk_idx >= 16) { | |
1131 | fprintf(stderr, "Invalid CSK index %d\n", csk_idx); | |
1132 | return 1; | |
1133 | } | |
1134 | ||
1135 | if (kwb_load_kak(params, &kak) < 0) | |
1136 | return 1; | |
1137 | ||
1138 | if (export_pub_kak_hash(kak, secure_hdr)) | |
1139 | return 1; | |
1140 | ||
1141 | if (kwb_import_pubkey(&kak_pub, &secure_hdr->kak, "KAK") < 0) | |
1142 | return 1; | |
1143 | ||
1144 | if (kwb_export_pubkey(csk, &secure_hdr->csk[csk_idx], NULL, "CSK") < 0) | |
1145 | return 1; | |
1146 | ||
1147 | if (kwb_sign_and_verify(kak, &secure_hdr->csk, | |
1148 | sizeof(secure_hdr->csk) + | |
1149 | sizeof(secure_hdr->csksig), | |
1150 | &tmp_sig, "CSK") < 0) | |
1151 | return 1; | |
1152 | ||
1153 | if (kwb_verify(kak_pub, &secure_hdr->csk, | |
1154 | sizeof(secure_hdr->csk) + | |
1155 | sizeof(secure_hdr->csksig), | |
1156 | &tmp_sig, "CSK (2)") < 0) | |
1157 | return 1; | |
1158 | ||
1159 | secure_hdr->csksig = tmp_sig; | |
1160 | ||
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | int add_secure_header_v1(struct image_tool_params *params, uint8_t *ptr, | |
1165 | int payloadsz, size_t headersz, uint8_t *image, | |
1166 | struct secure_hdr_v1 *secure_hdr) | |
1167 | { | |
1168 | struct image_cfg_element *e_jtagdelay; | |
1169 | struct image_cfg_element *e_boxid; | |
1170 | struct image_cfg_element *e_flashid; | |
1171 | RSA *csk = NULL; | |
1172 | unsigned char *image_ptr; | |
1173 | size_t image_size; | |
1174 | struct sig_v1 tmp_sig; | |
1175 | bool specialized_img = image_get_spezialized_img(); | |
1176 | ||
1177 | kwb_msg("Create secure header content\n"); | |
1178 | ||
1179 | e_jtagdelay = image_find_option(IMAGE_CFG_JTAG_DELAY); | |
1180 | e_boxid = image_find_option(IMAGE_CFG_BOX_ID); | |
1181 | e_flashid = image_find_option(IMAGE_CFG_FLASH_ID); | |
1182 | ||
1183 | if (kwb_load_csk(params, &csk) < 0) | |
1184 | return 1; | |
1185 | ||
1186 | secure_hdr->headertype = OPT_HDR_V1_SECURE_TYPE; | |
1187 | secure_hdr->headersz_msb = 0; | |
1188 | secure_hdr->headersz_lsb = cpu_to_le16(sizeof(struct secure_hdr_v1)); | |
1189 | if (e_jtagdelay) | |
1190 | secure_hdr->jtag_delay = e_jtagdelay->jtag_delay; | |
1191 | if (e_boxid && specialized_img) | |
1192 | secure_hdr->boxid = cpu_to_le32(e_boxid->boxid); | |
1193 | if (e_flashid && specialized_img) | |
1194 | secure_hdr->flashid = cpu_to_le32(e_flashid->flashid); | |
1195 | ||
1196 | if (kwb_sign_csk_with_kak(params, secure_hdr, csk)) | |
1197 | return 1; | |
1198 | ||
1199 | image_ptr = ptr + headersz; | |
1200 | image_size = payloadsz - headersz; | |
1201 | ||
1202 | if (kwb_sign_and_verify(csk, image_ptr, image_size, | |
1203 | &secure_hdr->imgsig, "image") < 0) | |
1204 | return 1; | |
1205 | ||
1206 | if (kwb_sign_and_verify(csk, image, headersz, &tmp_sig, "header") < 0) | |
1207 | return 1; | |
1208 | ||
1209 | secure_hdr->hdrsig = tmp_sig; | |
1210 | ||
1211 | kwb_dump_fuse_cmds(secure_hdr); | |
1212 | ||
1213 | return 0; | |
1214 | } | |
1215 | #endif | |
1216 | ||
4acd2d24 | 1217 | static void *image_create_v1(size_t *imagesz, struct image_tool_params *params, |
a1b6b0a9 | 1218 | uint8_t *ptr, int payloadsz) |
4acd2d24 | 1219 | { |
79066ef8 | 1220 | struct image_cfg_element *e; |
4acd2d24 | 1221 | struct main_hdr_v1 *main_hdr; |
a1b6b0a9 MS |
1222 | #if defined(CONFIG_KWB_SECURE) |
1223 | struct secure_hdr_v1 *secure_hdr = NULL; | |
1224 | #endif | |
4acd2d24 | 1225 | size_t headersz; |
885fba15 | 1226 | uint8_t *image, *cur; |
4acd2d24 | 1227 | int hasext = 0; |
a1b6b0a9 | 1228 | uint8_t *next_ext = NULL; |
4acd2d24 SR |
1229 | |
1230 | /* | |
1231 | * Calculate the size of the header and the size of the | |
1232 | * payload | |
1233 | */ | |
e93cf53f | 1234 | headersz = image_headersz_v1(&hasext); |
4acd2d24 SR |
1235 | if (headersz == 0) |
1236 | return NULL; | |
1237 | ||
1238 | image = malloc(headersz); | |
1239 | if (!image) { | |
1240 | fprintf(stderr, "Cannot allocate memory for image\n"); | |
1241 | return NULL; | |
1242 | } | |
aa0c7a86 | 1243 | |
4acd2d24 SR |
1244 | memset(image, 0, headersz); |
1245 | ||
885fba15 | 1246 | main_hdr = (struct main_hdr_v1 *)image; |
a1b6b0a9 MS |
1247 | cur = image; |
1248 | cur += sizeof(struct main_hdr_v1); | |
1249 | next_ext = &main_hdr->ext; | |
4acd2d24 SR |
1250 | |
1251 | /* Fill the main header */ | |
a8840dce RP |
1252 | main_hdr->blocksize = |
1253 | cpu_to_le32(payloadsz - headersz + sizeof(uint32_t)); | |
1254 | main_hdr->headersz_lsb = cpu_to_le16(headersz & 0xFFFF); | |
4acd2d24 | 1255 | main_hdr->headersz_msb = (headersz & 0xFFFF0000) >> 16; |
94084eea MS |
1256 | main_hdr->destaddr = cpu_to_le32(params->addr) |
1257 | - sizeof(image_header_t); | |
a8840dce RP |
1258 | main_hdr->execaddr = cpu_to_le32(params->ep); |
1259 | main_hdr->srcaddr = cpu_to_le32(headersz); | |
4acd2d24 SR |
1260 | main_hdr->ext = hasext; |
1261 | main_hdr->version = 1; | |
1262 | e = image_find_option(IMAGE_CFG_BOOT_FROM); | |
1263 | if (e) | |
1264 | main_hdr->blockid = e->bootfrom; | |
1265 | e = image_find_option(IMAGE_CFG_NAND_BLKSZ); | |
1266 | if (e) | |
1267 | main_hdr->nandblocksize = e->nandblksz / (64 * 1024); | |
1268 | e = image_find_option(IMAGE_CFG_NAND_BADBLK_LOCATION); | |
1269 | if (e) | |
1270 | main_hdr->nandbadblklocation = e->nandbadblklocation; | |
4bdb5479 CP |
1271 | e = image_find_option(IMAGE_CFG_BAUDRATE); |
1272 | if (e) | |
1273 | main_hdr->options = baudrate_to_option(e->baudrate); | |
2611c05e CP |
1274 | e = image_find_option(IMAGE_CFG_DEBUG); |
1275 | if (e) | |
1276 | main_hdr->flags = e->debug ? 0x1 : 0; | |
4acd2d24 | 1277 | |
a1b6b0a9 MS |
1278 | #if defined(CONFIG_KWB_SECURE) |
1279 | if (image_get_csk_index() >= 0) { | |
1280 | /* | |
1281 | * only reserve the space here; we fill the header later since | |
1282 | * we need the header to be complete to compute the signatures | |
1283 | */ | |
1284 | secure_hdr = (struct secure_hdr_v1 *)cur; | |
1285 | cur += sizeof(struct secure_hdr_v1); | |
1286 | next_ext = &secure_hdr->next; | |
1287 | } | |
1288 | #endif | |
1289 | *next_ext = 1; | |
1290 | ||
79066ef8 MS |
1291 | if (add_binary_header_v1(cur)) |
1292 | return NULL; | |
4acd2d24 | 1293 | |
a1b6b0a9 MS |
1294 | #if defined(CONFIG_KWB_SECURE) |
1295 | if (secure_hdr && add_secure_header_v1(params, ptr, payloadsz, | |
1296 | headersz, image, secure_hdr)) | |
1297 | return NULL; | |
1298 | #endif | |
1299 | ||
4acd2d24 SR |
1300 | /* Calculate and set the header checksum */ |
1301 | main_hdr->checksum = image_checksum8(main_hdr, headersz); | |
1302 | ||
1303 | *imagesz = headersz; | |
1304 | return image; | |
1305 | } | |
1306 | ||
4991b4f7 MS |
1307 | int recognize_keyword(char *keyword) |
1308 | { | |
1309 | int kw_id; | |
1310 | ||
1311 | for (kw_id = 1; kw_id < IMAGE_CFG_COUNT; ++kw_id) | |
1312 | if (!strcmp(keyword, id_strs[kw_id])) | |
1313 | return kw_id; | |
1314 | ||
1315 | return 0; | |
1316 | } | |
1317 | ||
4acd2d24 SR |
1318 | static int image_create_config_parse_oneline(char *line, |
1319 | struct image_cfg_element *el) | |
1320 | { | |
4991b4f7 MS |
1321 | char *keyword, *saveptr, *value1, *value2; |
1322 | char delimiters[] = " \t"; | |
1323 | int keyword_id, ret, argi; | |
1324 | char *unknown_msg = "Ignoring unknown line '%s'\n"; | |
1325 | ||
1326 | keyword = strtok_r(line, delimiters, &saveptr); | |
1327 | keyword_id = recognize_keyword(keyword); | |
1328 | ||
1329 | if (!keyword_id) { | |
1330 | fprintf(stderr, unknown_msg, line); | |
1331 | return 0; | |
1332 | } | |
4acd2d24 | 1333 | |
4991b4f7 | 1334 | el->type = keyword_id; |
94490a4a | 1335 | |
4991b4f7 MS |
1336 | value1 = strtok_r(NULL, delimiters, &saveptr); |
1337 | ||
1338 | if (!value1) { | |
1339 | fprintf(stderr, "Parameter missing in line '%s'\n", line); | |
1340 | return -1; | |
1341 | } | |
1342 | ||
1343 | switch (keyword_id) { | |
1344 | case IMAGE_CFG_VERSION: | |
1345 | el->version = atoi(value1); | |
1346 | break; | |
1347 | case IMAGE_CFG_BOOT_FROM: | |
1348 | ret = image_boot_mode_id(value1); | |
94490a4a | 1349 | |
f411b8f2 | 1350 | if (ret < 0) { |
4991b4f7 | 1351 | fprintf(stderr, "Invalid boot media '%s'\n", value1); |
4acd2d24 SR |
1352 | return -1; |
1353 | } | |
f411b8f2 | 1354 | el->bootfrom = ret; |
4991b4f7 MS |
1355 | break; |
1356 | case IMAGE_CFG_NAND_BLKSZ: | |
1357 | el->nandblksz = strtoul(value1, NULL, 16); | |
1358 | break; | |
1359 | case IMAGE_CFG_NAND_BADBLK_LOCATION: | |
1360 | el->nandbadblklocation = strtoul(value1, NULL, 16); | |
1361 | break; | |
1362 | case IMAGE_CFG_NAND_ECC_MODE: | |
1363 | ret = image_nand_ecc_mode_id(value1); | |
94490a4a | 1364 | |
f411b8f2 | 1365 | if (ret < 0) { |
4991b4f7 | 1366 | fprintf(stderr, "Invalid NAND ECC mode '%s'\n", value1); |
4acd2d24 SR |
1367 | return -1; |
1368 | } | |
f411b8f2 | 1369 | el->nandeccmode = ret; |
4991b4f7 MS |
1370 | break; |
1371 | case IMAGE_CFG_NAND_PAGESZ: | |
1372 | el->nandpagesz = strtoul(value1, NULL, 16); | |
1373 | break; | |
1374 | case IMAGE_CFG_BINARY: | |
1375 | argi = 0; | |
1376 | ||
1377 | el->binary.file = strdup(value1); | |
4acd2d24 | 1378 | while (1) { |
4991b4f7 MS |
1379 | char *value = strtok_r(NULL, delimiters, &saveptr); |
1380 | ||
4acd2d24 SR |
1381 | if (!value) |
1382 | break; | |
1383 | el->binary.args[argi] = strtoul(value, NULL, 16); | |
1384 | argi++; | |
1385 | if (argi >= BINARY_MAX_ARGS) { | |
1386 | fprintf(stderr, | |
4991b4f7 | 1387 | "Too many arguments for BINARY\n"); |
4acd2d24 | 1388 | return -1; |
aa0c7a86 | 1389 | } |
aa0c7a86 | 1390 | } |
4acd2d24 | 1391 | el->binary.nargs = argi; |
4991b4f7 MS |
1392 | break; |
1393 | case IMAGE_CFG_DATA: | |
1394 | value2 = strtok_r(NULL, delimiters, &saveptr); | |
4acd2d24 SR |
1395 | |
1396 | if (!value1 || !value2) { | |
1397 | fprintf(stderr, | |
1398 | "Invalid number of arguments for DATA\n"); | |
1399 | return -1; | |
1400 | } | |
1401 | ||
4acd2d24 SR |
1402 | el->regdata.raddr = strtoul(value1, NULL, 16); |
1403 | el->regdata.rdata = strtoul(value2, NULL, 16); | |
4991b4f7 MS |
1404 | break; |
1405 | case IMAGE_CFG_BAUDRATE: | |
1406 | el->baudrate = strtoul(value1, NULL, 10); | |
1407 | break; | |
1408 | case IMAGE_CFG_DEBUG: | |
1409 | el->debug = strtoul(value1, NULL, 10); | |
1410 | break; | |
a1b6b0a9 MS |
1411 | case IMAGE_CFG_KAK: |
1412 | el->key_name = strdup(value1); | |
1413 | break; | |
1414 | case IMAGE_CFG_CSK: | |
1415 | el->key_name = strdup(value1); | |
1416 | break; | |
1417 | case IMAGE_CFG_CSK_INDEX: | |
1418 | el->csk_idx = strtol(value1, NULL, 0); | |
1419 | break; | |
1420 | case IMAGE_CFG_JTAG_DELAY: | |
1421 | el->jtag_delay = strtoul(value1, NULL, 0); | |
1422 | break; | |
1423 | case IMAGE_CFG_BOX_ID: | |
1424 | el->boxid = strtoul(value1, NULL, 0); | |
1425 | break; | |
1426 | case IMAGE_CFG_FLASH_ID: | |
1427 | el->flashid = strtoul(value1, NULL, 0); | |
1428 | break; | |
1429 | case IMAGE_CFG_SEC_SPECIALIZED_IMG: | |
1430 | el->sec_specialized_img = true; | |
1431 | break; | |
1432 | case IMAGE_CFG_SEC_COMMON_IMG: | |
1433 | el->sec_specialized_img = false; | |
1434 | break; | |
1435 | case IMAGE_CFG_SEC_BOOT_DEV: | |
1436 | el->sec_boot_dev = strtoul(value1, NULL, 0); | |
1437 | break; | |
1438 | case IMAGE_CFG_SEC_FUSE_DUMP: | |
1439 | el->name = strdup(value1); | |
1440 | break; | |
4991b4f7 MS |
1441 | default: |
1442 | fprintf(stderr, unknown_msg, line); | |
aa0c7a86 | 1443 | } |
aa0c7a86 | 1444 | |
4acd2d24 SR |
1445 | return 0; |
1446 | } | |
aa0c7a86 PW |
1447 | |
1448 | /* | |
4acd2d24 SR |
1449 | * Parse the configuration file 'fcfg' into the array of configuration |
1450 | * elements 'image_cfg', and return the number of configuration | |
1451 | * elements in 'cfgn'. | |
aa0c7a86 | 1452 | */ |
4acd2d24 SR |
1453 | static int image_create_config_parse(FILE *fcfg) |
1454 | { | |
1455 | int ret; | |
1456 | int cfgi = 0; | |
1457 | ||
1458 | /* Parse the configuration file */ | |
1459 | while (!feof(fcfg)) { | |
1460 | char *line; | |
1461 | char buf[256]; | |
1462 | ||
1463 | /* Read the current line */ | |
1464 | memset(buf, 0, sizeof(buf)); | |
1465 | line = fgets(buf, sizeof(buf), fcfg); | |
1466 | if (!line) | |
1467 | break; | |
1468 | ||
1469 | /* Ignore useless lines */ | |
1470 | if (line[0] == '\n' || line[0] == '#') | |
1471 | continue; | |
1472 | ||
1473 | /* Strip final newline */ | |
1474 | if (line[strlen(line) - 1] == '\n') | |
1475 | line[strlen(line) - 1] = 0; | |
1476 | ||
1477 | /* Parse the current line */ | |
1478 | ret = image_create_config_parse_oneline(line, | |
1479 | &image_cfg[cfgi]); | |
1480 | if (ret) | |
1481 | return ret; | |
1482 | ||
1483 | cfgi++; | |
1484 | ||
1485 | if (cfgi >= IMAGE_CFG_ELEMENT_MAX) { | |
1486 | fprintf(stderr, | |
1487 | "Too many configuration elements in .cfg file\n"); | |
1488 | return -1; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | cfgn = cfgi; | |
1493 | return 0; | |
1494 | } | |
1495 | ||
1496 | static int image_get_version(void) | |
1497 | { | |
1498 | struct image_cfg_element *e; | |
1499 | ||
1500 | e = image_find_option(IMAGE_CFG_VERSION); | |
1501 | if (!e) | |
1502 | return -1; | |
1503 | ||
1504 | return e->version; | |
1505 | } | |
1506 | ||
4acd2d24 | 1507 | static void kwbimage_set_header(void *ptr, struct stat *sbuf, int ifd, |
f86ed6a8 | 1508 | struct image_tool_params *params) |
aa0c7a86 | 1509 | { |
4acd2d24 SR |
1510 | FILE *fcfg; |
1511 | void *image = NULL; | |
1512 | int version; | |
93e9371f | 1513 | size_t headersz = 0; |
aa0c7a86 | 1514 | uint32_t checksum; |
4acd2d24 | 1515 | int ret; |
aa0c7a86 PW |
1516 | int size; |
1517 | ||
4acd2d24 SR |
1518 | fcfg = fopen(params->imagename, "r"); |
1519 | if (!fcfg) { | |
1520 | fprintf(stderr, "Could not open input file %s\n", | |
1521 | params->imagename); | |
1522 | exit(EXIT_FAILURE); | |
1523 | } | |
1524 | ||
1525 | image_cfg = malloc(IMAGE_CFG_ELEMENT_MAX * | |
1526 | sizeof(struct image_cfg_element)); | |
1527 | if (!image_cfg) { | |
1528 | fprintf(stderr, "Cannot allocate memory\n"); | |
1529 | fclose(fcfg); | |
1530 | exit(EXIT_FAILURE); | |
1531 | } | |
1532 | ||
1533 | memset(image_cfg, 0, | |
1534 | IMAGE_CFG_ELEMENT_MAX * sizeof(struct image_cfg_element)); | |
1535 | rewind(fcfg); | |
1536 | ||
1537 | ret = image_create_config_parse(fcfg); | |
1538 | fclose(fcfg); | |
1539 | if (ret) { | |
1540 | free(image_cfg); | |
1541 | exit(EXIT_FAILURE); | |
1542 | } | |
1543 | ||
9b163d8c SR |
1544 | /* The MVEBU BootROM does not allow non word aligned payloads */ |
1545 | sbuf->st_size = ALIGN_SUP(sbuf->st_size, 4); | |
1546 | ||
4acd2d24 | 1547 | version = image_get_version(); |
934a529f SR |
1548 | switch (version) { |
1549 | /* | |
1550 | * Fallback to version 0 if no version is provided in the | |
1551 | * cfg file | |
1552 | */ | |
1553 | case -1: | |
1554 | case 0: | |
4acd2d24 | 1555 | image = image_create_v0(&headersz, params, sbuf->st_size); |
934a529f SR |
1556 | break; |
1557 | ||
1558 | case 1: | |
a1b6b0a9 | 1559 | image = image_create_v1(&headersz, params, ptr, sbuf->st_size); |
934a529f SR |
1560 | break; |
1561 | ||
1562 | default: | |
1563 | fprintf(stderr, "Unsupported version %d\n", version); | |
1564 | free(image_cfg); | |
1565 | exit(EXIT_FAILURE); | |
1566 | } | |
4acd2d24 SR |
1567 | |
1568 | if (!image) { | |
1569 | fprintf(stderr, "Could not create image\n"); | |
1570 | free(image_cfg); | |
1571 | exit(EXIT_FAILURE); | |
1572 | } | |
1573 | ||
1574 | free(image_cfg); | |
aa0c7a86 | 1575 | |
4acd2d24 | 1576 | /* Build and add image checksum header */ |
a8840dce RP |
1577 | checksum = |
1578 | cpu_to_le32(image_checksum32((uint32_t *)ptr, sbuf->st_size)); | |
4acd2d24 | 1579 | size = write(ifd, &checksum, sizeof(uint32_t)); |
aa0c7a86 | 1580 | if (size != sizeof(uint32_t)) { |
4acd2d24 | 1581 | fprintf(stderr, "Error:%s - Checksum write %d bytes %s\n", |
aa0c7a86 | 1582 | params->cmdname, size, params->imagefile); |
4acd2d24 | 1583 | exit(EXIT_FAILURE); |
aa0c7a86 PW |
1584 | } |
1585 | ||
1586 | sbuf->st_size += sizeof(uint32_t); | |
1587 | ||
4acd2d24 SR |
1588 | /* Finally copy the header into the image area */ |
1589 | memcpy(ptr, image, headersz); | |
aa0c7a86 | 1590 | |
4acd2d24 | 1591 | free(image); |
aa0c7a86 PW |
1592 | } |
1593 | ||
4acd2d24 | 1594 | static void kwbimage_print_header(const void *ptr) |
aa0c7a86 | 1595 | { |
4acd2d24 SR |
1596 | struct main_hdr_v0 *mhdr = (struct main_hdr_v0 *)ptr; |
1597 | ||
1598 | printf("Image Type: MVEBU Boot from %s Image\n", | |
1599 | image_boot_mode_name(mhdr->blockid)); | |
4acd2d24 | 1600 | printf("Image version:%d\n", image_version((void *)ptr)); |
26f195c7 | 1601 | printf("Data Size: "); |
4acd2d24 SR |
1602 | genimg_print_size(mhdr->blocksize - sizeof(uint32_t)); |
1603 | printf("Load Address: %08x\n", mhdr->destaddr); | |
1604 | printf("Entry Point: %08x\n", mhdr->execaddr); | |
aa0c7a86 PW |
1605 | } |
1606 | ||
4acd2d24 | 1607 | static int kwbimage_check_image_types(uint8_t type) |
aa0c7a86 PW |
1608 | { |
1609 | if (type == IH_TYPE_KWBIMAGE) | |
1610 | return EXIT_SUCCESS; | |
94490a4a MS |
1611 | |
1612 | return EXIT_FAILURE; | |
aa0c7a86 PW |
1613 | } |
1614 | ||
4acd2d24 SR |
1615 | static int kwbimage_verify_header(unsigned char *ptr, int image_size, |
1616 | struct image_tool_params *params) | |
1617 | { | |
4acd2d24 SR |
1618 | uint8_t checksum; |
1619 | ||
db7cd4ed | 1620 | if (!main_hdr_checksum_ok(ptr)) |
4acd2d24 SR |
1621 | return -FDT_ERR_BADSTRUCTURE; |
1622 | ||
1623 | /* Only version 0 extended header has checksum */ | |
1624 | if (image_version((void *)ptr) == 0) { | |
e89016c4 MS |
1625 | struct ext_hdr_v0 *ext_hdr; |
1626 | ||
885fba15 MS |
1627 | ext_hdr = (struct ext_hdr_v0 *) |
1628 | (ptr + sizeof(struct main_hdr_v0)); | |
4acd2d24 | 1629 | checksum = image_checksum8(ext_hdr, |
26f195c7 GK |
1630 | sizeof(struct ext_hdr_v0) |
1631 | - sizeof(uint8_t)); | |
4acd2d24 SR |
1632 | if (checksum != ext_hdr->checksum) |
1633 | return -FDT_ERR_BADSTRUCTURE; | |
1634 | } | |
1635 | ||
1636 | return 0; | |
1637 | } | |
1638 | ||
1639 | static int kwbimage_generate(struct image_tool_params *params, | |
1640 | struct image_type_params *tparams) | |
1641 | { | |
6cbf7eda | 1642 | FILE *fcfg; |
4acd2d24 | 1643 | int alloc_len; |
6cbf7eda | 1644 | int version; |
4acd2d24 | 1645 | void *hdr; |
6cbf7eda | 1646 | int ret; |
4acd2d24 | 1647 | |
6cbf7eda PW |
1648 | fcfg = fopen(params->imagename, "r"); |
1649 | if (!fcfg) { | |
1650 | fprintf(stderr, "Could not open input file %s\n", | |
1651 | params->imagename); | |
1652 | exit(EXIT_FAILURE); | |
1653 | } | |
1654 | ||
1655 | image_cfg = malloc(IMAGE_CFG_ELEMENT_MAX * | |
1656 | sizeof(struct image_cfg_element)); | |
1657 | if (!image_cfg) { | |
1658 | fprintf(stderr, "Cannot allocate memory\n"); | |
1659 | fclose(fcfg); | |
1660 | exit(EXIT_FAILURE); | |
1661 | } | |
1662 | ||
1663 | memset(image_cfg, 0, | |
1664 | IMAGE_CFG_ELEMENT_MAX * sizeof(struct image_cfg_element)); | |
1665 | rewind(fcfg); | |
1666 | ||
1667 | ret = image_create_config_parse(fcfg); | |
1668 | fclose(fcfg); | |
1669 | if (ret) { | |
1670 | free(image_cfg); | |
1671 | exit(EXIT_FAILURE); | |
1672 | } | |
1673 | ||
1674 | version = image_get_version(); | |
1675 | switch (version) { | |
1676 | /* | |
1677 | * Fallback to version 0 if no version is provided in the | |
1678 | * cfg file | |
1679 | */ | |
1680 | case -1: | |
1681 | case 0: | |
4acd2d24 SR |
1682 | alloc_len = sizeof(struct main_hdr_v0) + |
1683 | sizeof(struct ext_hdr_v0); | |
6cbf7eda PW |
1684 | break; |
1685 | ||
1686 | case 1: | |
e93cf53f | 1687 | alloc_len = image_headersz_v1(NULL); |
6cbf7eda PW |
1688 | break; |
1689 | ||
1690 | default: | |
1691 | fprintf(stderr, "Unsupported version %d\n", version); | |
1692 | free(image_cfg); | |
1693 | exit(EXIT_FAILURE); | |
4acd2d24 SR |
1694 | } |
1695 | ||
6cbf7eda PW |
1696 | free(image_cfg); |
1697 | ||
4acd2d24 SR |
1698 | hdr = malloc(alloc_len); |
1699 | if (!hdr) { | |
1700 | fprintf(stderr, "%s: malloc return failure: %s\n", | |
1701 | params->cmdname, strerror(errno)); | |
1702 | exit(EXIT_FAILURE); | |
1703 | } | |
1704 | ||
1705 | memset(hdr, 0, alloc_len); | |
1706 | tparams->header_size = alloc_len; | |
1707 | tparams->hdr = hdr; | |
1708 | ||
77720859 SR |
1709 | /* |
1710 | * The resulting image needs to be 4-byte aligned. At least | |
1711 | * the Marvell hdrparser tool complains if its unaligned. | |
1712 | * By returning 1 here in this function, called via | |
1713 | * tparams->vrec_header() in mkimage.c, mkimage will | |
1714 | * automatically pad the the resulting image to a 4-byte | |
1715 | * size if necessary. | |
1716 | */ | |
1717 | return 1; | |
4acd2d24 SR |
1718 | } |
1719 | ||
1720 | /* | |
1721 | * Report Error if xflag is set in addition to default | |
1722 | */ | |
1723 | static int kwbimage_check_params(struct image_tool_params *params) | |
1724 | { | |
1725 | if (!strlen(params->imagename)) { | |
94490a4a MS |
1726 | char *msg = "Configuration file for kwbimage creation omitted"; |
1727 | ||
1728 | fprintf(stderr, "Error:%s - %s\n", params->cmdname, msg); | |
4acd2d24 SR |
1729 | return CFG_INVALID; |
1730 | } | |
1731 | ||
1732 | return (params->dflag && (params->fflag || params->lflag)) || | |
1733 | (params->fflag && (params->dflag || params->lflag)) || | |
1734 | (params->lflag && (params->dflag || params->fflag)) || | |
1735 | (params->xflag) || !(strlen(params->imagename)); | |
1736 | } | |
1737 | ||
aa0c7a86 PW |
1738 | /* |
1739 | * kwbimage type parameters definition | |
1740 | */ | |
a93648d1 GMF |
1741 | U_BOOT_IMAGE_TYPE( |
1742 | kwbimage, | |
1743 | "Marvell MVEBU Boot Image support", | |
1744 | 0, | |
1745 | NULL, | |
1746 | kwbimage_check_params, | |
1747 | kwbimage_verify_header, | |
1748 | kwbimage_print_header, | |
1749 | kwbimage_set_header, | |
1750 | NULL, | |
1751 | kwbimage_check_image_types, | |
1752 | NULL, | |
1753 | kwbimage_generate | |
1754 | ); |