1 // SPDX-License-Identifier: GPL-2.0+
3 * Freescale i.MX23/i.MX28 SB image generator
5 * Copyright (C) 2012-2013 Marek Vasut <marex@denx.de>
17 #include <openssl/evp.h>
19 #include "imagetool.h"
21 #include "pbl_crc32.h"
25 * OpenSSL 1.1.0 and newer compatibility functions:
26 * https://wiki.openssl.org/index.php/1.1_API_Changes
28 #if OPENSSL_VERSION_NUMBER < 0x10100000L || \
29 (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL)
30 static void *OPENSSL_zalloc(size_t num
)
32 void *ret
= OPENSSL_malloc(num
);
39 EVP_MD_CTX
*EVP_MD_CTX_new(void)
41 return OPENSSL_zalloc(sizeof(EVP_MD_CTX
));
44 void EVP_MD_CTX_free(EVP_MD_CTX
*ctx
)
46 EVP_MD_CTX_cleanup(ctx
);
50 int EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX
*ctx
)
52 return EVP_CIPHER_CTX_cleanup(ctx
);
58 * |-Write to address command block
61 * |-ORR address with mask command block
63 * |-Write to address command block
67 #define SB_HAB_DCD_WRITE 0xccUL
68 #define SB_HAB_DCD_CHECK 0xcfUL
69 #define SB_HAB_DCD_NOOP 0xc0UL
70 #define SB_HAB_DCD_MASK_BIT (1 << 3)
71 #define SB_HAB_DCD_SET_BIT (1 << 4)
73 /* Addr.n = Value.n */
74 #define SB_DCD_WRITE \
75 (SB_HAB_DCD_WRITE << 24)
76 /* Addr.n &= ~Value.n */
78 ((SB_HAB_DCD_WRITE << 24) | SB_HAB_DCD_SET_BIT)
79 /* Addr.n |= Value.n */
81 ((SB_HAB_DCD_WRITE << 24) | SB_HAB_DCD_SET_BIT | SB_HAB_DCD_MASK_BIT)
82 /* (Addr.n & Value.n) == 0 */
83 #define SB_DCD_CHK_EQZ \
84 (SB_HAB_DCD_CHECK << 24)
85 /* (Addr.n & Value.n) == Value.n */
86 #define SB_DCD_CHK_EQ \
87 ((SB_HAB_DCD_CHECK << 24) | SB_HAB_DCD_SET_BIT)
88 /* (Addr.n & Value.n) != Value.n */
89 #define SB_DCD_CHK_NEQ \
90 ((SB_HAB_DCD_CHECK << 24) | SB_HAB_DCD_MASK_BIT)
91 /* (Addr.n & Value.n) != 0 */
92 #define SB_DCD_CHK_NEZ \
93 ((SB_HAB_DCD_CHECK << 24) | SB_HAB_DCD_SET_BIT | SB_HAB_DCD_MASK_BIT)
96 (SB_HAB_DCD_NOOP << 24)
99 struct sb_dcd_ctx
*dcd
;
105 /* Size of the whole DCD block. */
108 /* Pointer to previous DCD command block. */
109 uint32_t *prev_dcd_head
;
131 struct sb_cmd_ctx
*cmd
;
136 struct sb_command payload
;
137 struct sb_command c_payload
;
140 struct sb_section_ctx
{
146 struct sb_section_ctx
*sect
;
148 struct sb_cmd_ctx
*cmd_head
;
149 struct sb_cmd_ctx
*cmd_tail
;
151 struct sb_sections_header payload
;
154 struct sb_image_ctx
{
155 unsigned int in_section
:1;
156 unsigned int in_dcd
:1;
157 /* Image configuration */
158 unsigned int display_progress
:1;
159 unsigned int silent_dump
:1;
160 char *input_filename
;
161 char *output_filename
;
163 uint8_t image_key
[16];
165 /* Number of section in the image */
166 unsigned int sect_count
;
167 /* Bootable section */
168 unsigned int sect_boot
;
169 unsigned int sect_boot_found
:1;
171 struct sb_section_ctx
*sect_head
;
172 struct sb_section_ctx
*sect_tail
;
174 struct sb_dcd_ctx
*dcd_head
;
175 struct sb_dcd_ctx
*dcd_tail
;
177 EVP_CIPHER_CTX
*cipher_ctx
;
180 struct sb_key_dictionary_key sb_dict_key
;
182 struct sb_boot_image_header payload
;
186 * Instruction semantics:
190 * LOAD IVT address IVT_entry_point
191 * FILL address pattern length
192 * JUMP [HAB] address [r0_arg]
193 * CALL [HAB] address [r0_arg]
195 * For i.MX23, mode = USB/I2C/SPI1_FLASH/SPI2_FLASH/NAND_BCH
196 * JTAG/SPI3_EEPROM/SD_SSP0/SD_SSP1
197 * For i.MX28, mode = USB/I2C/SPI2_FLASH/SPI3_FLASH/NAND_BCH
198 * JTAG/SPI2_EEPROM/SD_SSP0/SD_SSP1
204 static int sb_aes_init(struct sb_image_ctx
*ictx
, uint8_t *iv
, int enc
)
209 /* If there is no init vector, init vector is all zeroes. */
211 iv
= ictx
->image_key
;
213 ctx
= EVP_CIPHER_CTX_new();
214 ret
= EVP_CipherInit(ctx
, EVP_aes_128_cbc(), ictx
->image_key
, iv
, enc
);
216 EVP_CIPHER_CTX_set_padding(ctx
, 0);
217 ictx
->cipher_ctx
= ctx
;
222 static int sb_aes_crypt(struct sb_image_ctx
*ictx
, uint8_t *in_data
,
223 uint8_t *out_data
, int in_len
)
225 EVP_CIPHER_CTX
*ctx
= ictx
->cipher_ctx
;
229 outbuf
= malloc(in_len
);
232 memset(outbuf
, 0, sizeof(in_len
));
234 ret
= EVP_CipherUpdate(ctx
, outbuf
, &outlen
, in_data
, in_len
);
241 memcpy(out_data
, outbuf
, outlen
);
248 static int sb_aes_deinit(EVP_CIPHER_CTX
*ctx
)
250 return EVP_CIPHER_CTX_reset(ctx
);
253 static int sb_aes_reinit(struct sb_image_ctx
*ictx
, int enc
)
256 EVP_CIPHER_CTX
*ctx
= ictx
->cipher_ctx
;
257 struct sb_boot_image_header
*sb_header
= &ictx
->payload
;
258 uint8_t *iv
= sb_header
->iv
;
260 ret
= sb_aes_deinit(ctx
);
263 return sb_aes_init(ictx
, iv
, enc
);
269 static void soprintf(struct sb_image_ctx
*ictx
, const char *fmt
, ...)
273 if (ictx
->silent_dump
)
277 vfprintf(stdout
, fmt
, ap
);
284 static time_t sb_get_timestamp(void)
286 struct tm time_2000
= {
287 .tm_yday
= 1, /* Jan. 1st */
288 .tm_year
= 100, /* 2000 */
290 time_t seconds_to_2000
= mktime(&time_2000
);
291 time_t seconds_to_now
= time(NULL
);
293 return seconds_to_now
- seconds_to_2000
;
296 static int sb_get_time(time_t time
, struct tm
*tm
)
298 struct tm time_2000
= {
299 .tm_yday
= 1, /* Jan. 1st */
300 .tm_year
= 0, /* 1900 */
302 const time_t seconds_to_2000
= mktime(&time_2000
);
303 const time_t seconds_to_now
= seconds_to_2000
+ time
;
305 ret
= gmtime_r(&seconds_to_now
, tm
);
306 return ret
? 0 : -EINVAL
;
309 static void sb_encrypt_sb_header(struct sb_image_ctx
*ictx
)
311 EVP_MD_CTX
*md_ctx
= ictx
->md_ctx
;
312 struct sb_boot_image_header
*sb_header
= &ictx
->payload
;
313 uint8_t *sb_header_ptr
= (uint8_t *)sb_header
;
315 /* Encrypt the header, compute the digest. */
316 sb_aes_crypt(ictx
, sb_header_ptr
, NULL
, sizeof(*sb_header
));
317 EVP_DigestUpdate(md_ctx
, sb_header_ptr
, sizeof(*sb_header
));
320 static void sb_encrypt_sb_sections_header(struct sb_image_ctx
*ictx
)
322 EVP_MD_CTX
*md_ctx
= ictx
->md_ctx
;
323 struct sb_section_ctx
*sctx
= ictx
->sect_head
;
324 struct sb_sections_header
*shdr
;
325 uint8_t *sb_sections_header_ptr
;
326 const int size
= sizeof(*shdr
);
329 shdr
= &sctx
->payload
;
330 sb_sections_header_ptr
= (uint8_t *)shdr
;
332 sb_aes_crypt(ictx
, sb_sections_header_ptr
,
333 ictx
->sb_dict_key
.cbc_mac
, size
);
334 EVP_DigestUpdate(md_ctx
, sb_sections_header_ptr
, size
);
340 static void sb_encrypt_key_dictionary_key(struct sb_image_ctx
*ictx
)
342 EVP_MD_CTX
*md_ctx
= ictx
->md_ctx
;
344 sb_aes_crypt(ictx
, ictx
->image_key
, ictx
->sb_dict_key
.key
,
345 sizeof(ictx
->sb_dict_key
.key
));
346 EVP_DigestUpdate(md_ctx
, &ictx
->sb_dict_key
, sizeof(ictx
->sb_dict_key
));
349 static void sb_decrypt_key_dictionary_key(struct sb_image_ctx
*ictx
)
351 EVP_MD_CTX
*md_ctx
= ictx
->md_ctx
;
353 EVP_DigestUpdate(md_ctx
, &ictx
->sb_dict_key
, sizeof(ictx
->sb_dict_key
));
354 sb_aes_crypt(ictx
, ictx
->sb_dict_key
.key
, ictx
->image_key
,
355 sizeof(ictx
->sb_dict_key
.key
));
358 static void sb_encrypt_tag(struct sb_image_ctx
*ictx
,
359 struct sb_cmd_ctx
*cctx
)
361 EVP_MD_CTX
*md_ctx
= ictx
->md_ctx
;
362 struct sb_command
*cmd
= &cctx
->payload
;
364 sb_aes_crypt(ictx
, (uint8_t *)cmd
,
365 (uint8_t *)&cctx
->c_payload
, sizeof(*cmd
));
366 EVP_DigestUpdate(md_ctx
, &cctx
->c_payload
, sizeof(*cmd
));
369 static int sb_encrypt_image(struct sb_image_ctx
*ictx
)
371 /* Start image-wide crypto. */
372 ictx
->md_ctx
= EVP_MD_CTX_new();
373 EVP_DigestInit(ictx
->md_ctx
, EVP_sha1());
378 sb_aes_init(ictx
, NULL
, 1);
379 sb_encrypt_sb_header(ictx
);
382 * SB sections header.
384 sb_encrypt_sb_sections_header(ictx
);
389 sb_aes_reinit(ictx
, 1);
390 sb_encrypt_key_dictionary_key(ictx
);
395 struct sb_cmd_ctx
*cctx
;
396 struct sb_command
*ccmd
;
397 struct sb_section_ctx
*sctx
= ictx
->sect_head
;
400 cctx
= sctx
->cmd_head
;
402 sb_aes_reinit(ictx
, 1);
405 ccmd
= &cctx
->payload
;
407 sb_encrypt_tag(ictx
, cctx
);
409 if (ccmd
->header
.tag
== ROM_TAG_CMD
) {
410 sb_aes_reinit(ictx
, 1);
411 } else if (ccmd
->header
.tag
== ROM_LOAD_CMD
) {
412 sb_aes_crypt(ictx
, cctx
->data
, cctx
->data
,
414 EVP_DigestUpdate(ictx
->md_ctx
, cctx
->data
,
425 * Dump the SHA1 of the whole image.
427 sb_aes_reinit(ictx
, 1);
429 EVP_DigestFinal(ictx
->md_ctx
, ictx
->digest
, NULL
);
430 EVP_MD_CTX_free(ictx
->md_ctx
);
431 sb_aes_crypt(ictx
, ictx
->digest
, ictx
->digest
, sizeof(ictx
->digest
));
433 /* Stop the encryption session. */
434 sb_aes_deinit(ictx
->cipher_ctx
);
439 static int sb_load_file(struct sb_cmd_ctx
*cctx
, char *filename
)
441 long real_size
, roundup_size
;
448 fprintf(stderr
, "ERR: Missing filename!\n");
452 fp
= fopen(filename
, "r");
456 ret
= fseek(fp
, 0, SEEK_END
);
460 real_size
= ftell(fp
);
464 ret
= fseek(fp
, 0, SEEK_SET
);
468 roundup_size
= roundup(real_size
, SB_BLOCK_SIZE
);
469 data
= calloc(1, roundup_size
);
473 size
= fread(data
, 1, real_size
, fp
);
474 if (size
!= (unsigned long)real_size
)
478 cctx
->length
= roundup_size
;
488 fprintf(stderr
, "ERR: Failed to load file \"%s\"\n", filename
);
492 static uint8_t sb_command_checksum(struct sb_command
*inst
)
494 uint8_t *inst_ptr
= (uint8_t *)inst
;
498 for (i
= 0; i
< sizeof(struct sb_command
); i
++)
504 static int sb_token_to_long(char *tok
, uint32_t *rid
)
509 if (tok
[0] != '0' || tok
[1] != 'x') {
510 fprintf(stderr
, "ERR: Invalid hexadecimal number!\n");
517 id
= strtoul(tok
, &endptr
, 16);
518 if ((errno
== ERANGE
&& id
== ULONG_MAX
) || (errno
!= 0 && id
== 0)) {
519 fprintf(stderr
, "ERR: Value can't be decoded!\n");
523 /* Check for 32-bit overflow. */
524 if (id
> 0xffffffff) {
525 fprintf(stderr
, "ERR: Value too big!\n");
530 fprintf(stderr
, "ERR: Deformed value!\n");
538 static int sb_grow_dcd(struct sb_dcd_ctx
*dctx
, unsigned int inc_size
)
545 dctx
->size
+= inc_size
;
546 tmp
= realloc(dctx
->payload
, dctx
->size
);
552 /* Assemble and update the HAB DCD header. */
553 dctx
->payload
[0] = htonl((SB_HAB_DCD_TAG
<< 24) |
560 static int sb_build_dcd(struct sb_image_ctx
*ictx
, struct sb_cmd_list
*cmd
)
562 struct sb_dcd_ctx
*dctx
;
568 dctx
= calloc(1, sizeof(*dctx
));
572 ret
= sb_grow_dcd(dctx
, 4);
576 /* Read DCD block number. */
577 tok
= strtok(cmd
->cmd
, " ");
579 fprintf(stderr
, "#%i ERR: DCD block without number!\n",
585 /* Parse the DCD block number. */
586 ret
= sb_token_to_long(tok
, &id
);
588 fprintf(stderr
, "#%i ERR: Malformed DCD block number!\n",
596 * The DCD block is now constructed. Append it to the list.
597 * WARNING: The DCD size is still not computed and will be
598 * updated while parsing it's commands.
600 if (!ictx
->dcd_head
) {
601 ictx
->dcd_head
= dctx
;
602 ictx
->dcd_tail
= dctx
;
604 ictx
->dcd_tail
->dcd
= dctx
;
605 ictx
->dcd_tail
= dctx
;
616 static int sb_build_dcd_block(struct sb_image_ctx
*ictx
,
617 struct sb_cmd_list
*cmd
,
621 uint32_t address
, value
, length
;
624 struct sb_dcd_ctx
*dctx
= ictx
->dcd_tail
;
627 if (dctx
->prev_dcd_head
&& (type
!= SB_DCD_NOOP
) &&
628 ((dctx
->prev_dcd_head
[0] & 0xff0000ff) == type
)) {
629 /* Same instruction as before, just append it. */
630 ret
= sb_grow_dcd(dctx
, 8);
633 } else if (type
== SB_DCD_NOOP
) {
634 ret
= sb_grow_dcd(dctx
, 4);
638 /* Update DCD command block pointer. */
639 dctx
->prev_dcd_head
= dctx
->payload
+
640 dctx
->size
/ sizeof(*dctx
->payload
) - 1;
642 /* NOOP has only 4 bytes and no payload. */
646 * Either a different instruction block started now
647 * or this is the first instruction block.
649 ret
= sb_grow_dcd(dctx
, 12);
653 /* Update DCD command block pointer. */
654 dctx
->prev_dcd_head
= dctx
->payload
+
655 dctx
->size
/ sizeof(*dctx
->payload
) - 3;
658 dcd
= dctx
->payload
+ dctx
->size
/ sizeof(*dctx
->payload
) - 2;
661 * Prepare the command.
663 tok
= strtok(cmd
->cmd
, " ");
665 fprintf(stderr
, "#%i ERR: Missing DCD address!\n",
671 /* Read DCD destination address. */
672 ret
= sb_token_to_long(tok
, &address
);
674 fprintf(stderr
, "#%i ERR: Incorrect DCD address!\n",
679 tok
= strtok(NULL
, " ");
681 fprintf(stderr
, "#%i ERR: Missing DCD value!\n",
687 /* Read DCD operation value. */
688 ret
= sb_token_to_long(tok
, &value
);
690 fprintf(stderr
, "#%i ERR: Incorrect DCD value!\n",
695 /* Fill in the new DCD entry. */
696 dcd
[0] = htonl(address
);
697 dcd
[1] = htonl(value
);
700 /* Update the DCD command block. */
701 length
= dctx
->size
-
702 ((dctx
->prev_dcd_head
- dctx
->payload
) *
703 sizeof(*dctx
->payload
));
704 dctx
->prev_dcd_head
[0] = htonl(type
| (length
<< 8));
710 static int sb_build_section(struct sb_image_ctx
*ictx
, struct sb_cmd_list
*cmd
)
712 struct sb_section_ctx
*sctx
;
713 struct sb_sections_header
*shdr
;
715 uint32_t bootable
= 0;
719 sctx
= calloc(1, sizeof(*sctx
));
723 /* Read section number. */
724 tok
= strtok(cmd
->cmd
, " ");
726 fprintf(stderr
, "#%i ERR: Section without number!\n",
732 /* Parse the section number. */
733 ret
= sb_token_to_long(tok
, &id
);
735 fprintf(stderr
, "#%i ERR: Malformed section number!\n",
740 /* Read section's BOOTABLE flag. */
741 tok
= strtok(NULL
, " ");
742 if (tok
&& (strlen(tok
) == 8) && !strncmp(tok
, "BOOTABLE", 8))
743 bootable
= SB_SECTION_FLAG_BOOTABLE
;
745 sctx
->boot
= bootable
;
747 shdr
= &sctx
->payload
;
748 shdr
->section_number
= id
;
749 shdr
->section_flags
= bootable
;
752 * The section is now constructed. Append it to the list.
753 * WARNING: The section size is still not computed and will
754 * be updated while parsing it's commands.
758 /* Mark that this section is bootable one. */
760 if (ictx
->sect_boot_found
) {
762 "#%i WARN: Multiple bootable section!\n",
765 ictx
->sect_boot
= id
;
766 ictx
->sect_boot_found
= 1;
770 if (!ictx
->sect_head
) {
771 ictx
->sect_head
= sctx
;
772 ictx
->sect_tail
= sctx
;
774 ictx
->sect_tail
->sect
= sctx
;
775 ictx
->sect_tail
= sctx
;
785 static int sb_build_command_nop(struct sb_image_ctx
*ictx
)
787 struct sb_section_ctx
*sctx
= ictx
->sect_tail
;
788 struct sb_cmd_ctx
*cctx
;
789 struct sb_command
*ccmd
;
791 cctx
= calloc(1, sizeof(*cctx
));
795 ccmd
= &cctx
->payload
;
798 * Construct the command.
800 ccmd
->header
.checksum
= 0x5a;
801 ccmd
->header
.tag
= ROM_NOP_CMD
;
803 cctx
->size
= sizeof(*ccmd
);
806 * Append the command to the last section.
808 if (!sctx
->cmd_head
) {
809 sctx
->cmd_head
= cctx
;
810 sctx
->cmd_tail
= cctx
;
812 sctx
->cmd_tail
->cmd
= cctx
;
813 sctx
->cmd_tail
= cctx
;
819 static int sb_build_command_tag(struct sb_image_ctx
*ictx
,
820 struct sb_cmd_list
*cmd
)
822 struct sb_section_ctx
*sctx
= ictx
->sect_tail
;
823 struct sb_cmd_ctx
*cctx
;
824 struct sb_command
*ccmd
;
827 cctx
= calloc(1, sizeof(*cctx
));
831 ccmd
= &cctx
->payload
;
834 * Prepare the command.
836 /* Check for the LAST keyword. */
837 tok
= strtok(cmd
->cmd
, " ");
838 if (tok
&& !strcmp(tok
, "LAST"))
839 ccmd
->header
.flags
= ROM_TAG_CMD_FLAG_ROM_LAST_TAG
;
842 * Construct the command.
844 ccmd
->header
.checksum
= 0x5a;
845 ccmd
->header
.tag
= ROM_TAG_CMD
;
847 cctx
->size
= sizeof(*ccmd
);
850 * Append the command to the last section.
852 if (!sctx
->cmd_head
) {
853 sctx
->cmd_head
= cctx
;
854 sctx
->cmd_tail
= cctx
;
856 sctx
->cmd_tail
->cmd
= cctx
;
857 sctx
->cmd_tail
= cctx
;
863 static int sb_build_command_load(struct sb_image_ctx
*ictx
,
864 struct sb_cmd_list
*cmd
)
866 struct sb_section_ctx
*sctx
= ictx
->sect_tail
;
867 struct sb_cmd_ctx
*cctx
;
868 struct sb_command
*ccmd
;
870 int ret
, is_ivt
= 0, is_dcd
= 0;
871 uint32_t dest
, dcd
= 0;
873 cctx
= calloc(1, sizeof(*cctx
));
877 ccmd
= &cctx
->payload
;
880 * Prepare the command.
882 tok
= strtok(cmd
->cmd
, " ");
884 fprintf(stderr
, "#%i ERR: Missing LOAD address or 'IVT'!\n",
890 /* Check for "IVT" flag. */
891 if (!strcmp(tok
, "IVT"))
893 if (!strcmp(tok
, "DCD"))
895 if (is_ivt
|| is_dcd
) {
896 tok
= strtok(NULL
, " ");
898 fprintf(stderr
, "#%i ERR: Missing LOAD address!\n",
905 /* Read load destination address. */
906 ret
= sb_token_to_long(tok
, &dest
);
908 fprintf(stderr
, "#%i ERR: Incorrect LOAD address!\n",
913 /* Read filename or IVT entrypoint or DCD block ID. */
914 tok
= strtok(NULL
, " ");
917 "#%i ERR: Missing LOAD filename or IVT ep or DCD block ID!\n",
925 struct sb_ivt_header
*ivt
;
927 ret
= sb_token_to_long(tok
, &ivtep
);
931 "#%i ERR: Incorrect IVT entry point!\n",
936 ivt
= calloc(1, sizeof(*ivt
));
942 ivt
->header
= sb_hab_ivt_header();
946 cctx
->data
= (uint8_t *)ivt
;
947 cctx
->length
= sizeof(*ivt
);
949 struct sb_dcd_ctx
*dctx
= ictx
->dcd_head
;
953 ret
= sb_token_to_long(tok
, &dcdid
);
957 "#%i ERR: Incorrect DCD block ID!\n",
963 if (dctx
->id
== dcdid
)
969 fprintf(stderr
, "#%i ERR: DCD block %08x not found!\n",
974 asize
= roundup(dctx
->size
, SB_BLOCK_SIZE
);
975 payload
= calloc(1, asize
);
981 memcpy(payload
, dctx
->payload
, dctx
->size
);
983 cctx
->data
= payload
;
984 cctx
->length
= asize
;
986 /* Set the Load DCD flag. */
987 dcd
= ROM_LOAD_CMD_FLAG_DCD_LOAD
;
989 /* Regular LOAD of a file. */
990 ret
= sb_load_file(cctx
, tok
);
992 fprintf(stderr
, "#%i ERR: Cannot load '%s'!\n",
998 if (cctx
->length
& (SB_BLOCK_SIZE
- 1)) {
999 fprintf(stderr
, "#%i ERR: Unaligned payload!\n",
1004 * Construct the command.
1006 ccmd
->header
.checksum
= 0x5a;
1007 ccmd
->header
.tag
= ROM_LOAD_CMD
;
1008 ccmd
->header
.flags
= dcd
;
1010 ccmd
->load
.address
= dest
;
1011 ccmd
->load
.count
= cctx
->length
;
1012 ccmd
->load
.crc32
= pbl_crc32(0,
1013 (const char *)cctx
->data
,
1016 cctx
->size
= sizeof(*ccmd
) + cctx
->length
;
1019 * Append the command to the last section.
1021 if (!sctx
->cmd_head
) {
1022 sctx
->cmd_head
= cctx
;
1023 sctx
->cmd_tail
= cctx
;
1025 sctx
->cmd_tail
->cmd
= cctx
;
1026 sctx
->cmd_tail
= cctx
;
1036 static int sb_build_command_fill(struct sb_image_ctx
*ictx
,
1037 struct sb_cmd_list
*cmd
)
1039 struct sb_section_ctx
*sctx
= ictx
->sect_tail
;
1040 struct sb_cmd_ctx
*cctx
;
1041 struct sb_command
*ccmd
;
1043 uint32_t address
, pattern
, length
;
1046 cctx
= calloc(1, sizeof(*cctx
));
1050 ccmd
= &cctx
->payload
;
1053 * Prepare the command.
1055 tok
= strtok(cmd
->cmd
, " ");
1057 fprintf(stderr
, "#%i ERR: Missing FILL address!\n",
1063 /* Read fill destination address. */
1064 ret
= sb_token_to_long(tok
, &address
);
1066 fprintf(stderr
, "#%i ERR: Incorrect FILL address!\n",
1071 tok
= strtok(NULL
, " ");
1073 fprintf(stderr
, "#%i ERR: Missing FILL pattern!\n",
1079 /* Read fill pattern address. */
1080 ret
= sb_token_to_long(tok
, &pattern
);
1082 fprintf(stderr
, "#%i ERR: Incorrect FILL pattern!\n",
1087 tok
= strtok(NULL
, " ");
1089 fprintf(stderr
, "#%i ERR: Missing FILL length!\n",
1095 /* Read fill pattern address. */
1096 ret
= sb_token_to_long(tok
, &length
);
1098 fprintf(stderr
, "#%i ERR: Incorrect FILL length!\n",
1104 * Construct the command.
1106 ccmd
->header
.checksum
= 0x5a;
1107 ccmd
->header
.tag
= ROM_FILL_CMD
;
1109 ccmd
->fill
.address
= address
;
1110 ccmd
->fill
.count
= length
;
1111 ccmd
->fill
.pattern
= pattern
;
1113 cctx
->size
= sizeof(*ccmd
);
1116 * Append the command to the last section.
1118 if (!sctx
->cmd_head
) {
1119 sctx
->cmd_head
= cctx
;
1120 sctx
->cmd_tail
= cctx
;
1122 sctx
->cmd_tail
->cmd
= cctx
;
1123 sctx
->cmd_tail
= cctx
;
1133 static int sb_build_command_jump_call(struct sb_image_ctx
*ictx
,
1134 struct sb_cmd_list
*cmd
,
1135 unsigned int is_call
)
1137 struct sb_section_ctx
*sctx
= ictx
->sect_tail
;
1138 struct sb_cmd_ctx
*cctx
;
1139 struct sb_command
*ccmd
;
1141 uint32_t dest
, arg
= 0x0;
1144 const char *cmdname
= is_call
? "CALL" : "JUMP";
1146 cctx
= calloc(1, sizeof(*cctx
));
1150 ccmd
= &cctx
->payload
;
1153 * Prepare the command.
1155 tok
= strtok(cmd
->cmd
, " ");
1158 "#%i ERR: Missing %s address or 'HAB'!\n",
1159 cmd
->lineno
, cmdname
);
1164 /* Check for "HAB" flag. */
1165 if (!strcmp(tok
, "HAB")) {
1166 hab
= is_call
? ROM_CALL_CMD_FLAG_HAB
: ROM_JUMP_CMD_FLAG_HAB
;
1167 tok
= strtok(NULL
, " ");
1169 fprintf(stderr
, "#%i ERR: Missing %s address!\n",
1170 cmd
->lineno
, cmdname
);
1175 /* Read load destination address. */
1176 ret
= sb_token_to_long(tok
, &dest
);
1178 fprintf(stderr
, "#%i ERR: Incorrect %s address!\n",
1179 cmd
->lineno
, cmdname
);
1183 tok
= strtok(NULL
, " ");
1185 ret
= sb_token_to_long(tok
, &arg
);
1188 "#%i ERR: Incorrect %s argument!\n",
1189 cmd
->lineno
, cmdname
);
1195 * Construct the command.
1197 ccmd
->header
.checksum
= 0x5a;
1198 ccmd
->header
.tag
= is_call
? ROM_CALL_CMD
: ROM_JUMP_CMD
;
1199 ccmd
->header
.flags
= hab
;
1201 ccmd
->call
.address
= dest
;
1202 ccmd
->call
.argument
= arg
;
1204 cctx
->size
= sizeof(*ccmd
);
1207 * Append the command to the last section.
1209 if (!sctx
->cmd_head
) {
1210 sctx
->cmd_head
= cctx
;
1211 sctx
->cmd_tail
= cctx
;
1213 sctx
->cmd_tail
->cmd
= cctx
;
1214 sctx
->cmd_tail
= cctx
;
1224 static int sb_build_command_jump(struct sb_image_ctx
*ictx
,
1225 struct sb_cmd_list
*cmd
)
1227 return sb_build_command_jump_call(ictx
, cmd
, 0);
1230 static int sb_build_command_call(struct sb_image_ctx
*ictx
,
1231 struct sb_cmd_list
*cmd
)
1233 return sb_build_command_jump_call(ictx
, cmd
, 1);
1236 static int sb_build_command_mode(struct sb_image_ctx
*ictx
,
1237 struct sb_cmd_list
*cmd
)
1239 struct sb_section_ctx
*sctx
= ictx
->sect_tail
;
1240 struct sb_cmd_ctx
*cctx
;
1241 struct sb_command
*ccmd
;
1245 uint32_t mode
= 0xffffffff;
1247 cctx
= calloc(1, sizeof(*cctx
));
1251 ccmd
= &cctx
->payload
;
1254 * Prepare the command.
1256 tok
= strtok(cmd
->cmd
, " ");
1258 fprintf(stderr
, "#%i ERR: Missing MODE boot mode argument!\n",
1264 for (i
= 0; i
< ARRAY_SIZE(modetable
); i
++) {
1265 if (!strcmp(tok
, modetable
[i
].name
)) {
1266 mode
= modetable
[i
].mode
;
1270 if (!modetable
[i
].altname
)
1273 if (!strcmp(tok
, modetable
[i
].altname
)) {
1274 mode
= modetable
[i
].mode
;
1279 if (mode
== 0xffffffff) {
1280 fprintf(stderr
, "#%i ERR: Invalid MODE boot mode argument!\n",
1287 * Construct the command.
1289 ccmd
->header
.checksum
= 0x5a;
1290 ccmd
->header
.tag
= ROM_MODE_CMD
;
1292 ccmd
->mode
.mode
= mode
;
1294 cctx
->size
= sizeof(*ccmd
);
1297 * Append the command to the last section.
1299 if (!sctx
->cmd_head
) {
1300 sctx
->cmd_head
= cctx
;
1301 sctx
->cmd_tail
= cctx
;
1303 sctx
->cmd_tail
->cmd
= cctx
;
1304 sctx
->cmd_tail
= cctx
;
1314 static int sb_prefill_image_header(struct sb_image_ctx
*ictx
)
1316 struct sb_boot_image_header
*hdr
= &ictx
->payload
;
1318 /* Fill signatures */
1319 memcpy(hdr
->signature1
, "STMP", 4);
1320 memcpy(hdr
->signature2
, "sgtl", 4);
1322 /* SB Image version 1.1 */
1323 hdr
->major_version
= SB_VERSION_MAJOR
;
1324 hdr
->minor_version
= SB_VERSION_MINOR
;
1326 /* Boot image major version */
1327 hdr
->product_version
.major
= htons(0x999);
1328 hdr
->product_version
.minor
= htons(0x999);
1329 hdr
->product_version
.revision
= htons(0x999);
1330 /* Boot image major version */
1331 hdr
->component_version
.major
= htons(0x999);
1332 hdr
->component_version
.minor
= htons(0x999);
1333 hdr
->component_version
.revision
= htons(0x999);
1335 /* Drive tag must be 0x0 for i.MX23 */
1338 hdr
->header_blocks
=
1339 sizeof(struct sb_boot_image_header
) / SB_BLOCK_SIZE
;
1340 hdr
->section_header_size
=
1341 sizeof(struct sb_sections_header
) / SB_BLOCK_SIZE
;
1342 hdr
->timestamp_us
= sb_get_timestamp() * 1000000;
1344 hdr
->flags
= ictx
->display_progress
?
1345 SB_IMAGE_FLAG_DISPLAY_PROGRESS
: 0;
1347 /* FIXME -- We support only default key */
1353 static int sb_postfill_image_header(struct sb_image_ctx
*ictx
)
1355 struct sb_boot_image_header
*hdr
= &ictx
->payload
;
1356 struct sb_section_ctx
*sctx
= ictx
->sect_head
;
1357 uint32_t kd_size
, sections_blocks
;
1360 /* The main SB header size in blocks. */
1361 hdr
->image_blocks
= hdr
->header_blocks
;
1363 /* Size of the key dictionary, which has single zero entry. */
1364 kd_size
= hdr
->key_count
* sizeof(struct sb_key_dictionary_key
);
1365 hdr
->image_blocks
+= kd_size
/ SB_BLOCK_SIZE
;
1367 /* Now count the payloads. */
1368 hdr
->section_count
= ictx
->sect_count
;
1370 hdr
->image_blocks
+= sctx
->size
/ SB_BLOCK_SIZE
;
1374 if (!ictx
->sect_boot_found
) {
1375 fprintf(stderr
, "ERR: No bootable section selected!\n");
1378 hdr
->first_boot_section_id
= ictx
->sect_boot
;
1380 /* The n * SB section size in blocks. */
1381 sections_blocks
= hdr
->section_count
* hdr
->section_header_size
;
1382 hdr
->image_blocks
+= sections_blocks
;
1384 /* Key dictionary offset. */
1385 hdr
->key_dictionary_block
= hdr
->header_blocks
+ sections_blocks
;
1387 /* Digest of the whole image. */
1388 hdr
->image_blocks
+= 2;
1390 /* Pointer past the dictionary. */
1391 hdr
->first_boot_tag_block
=
1392 hdr
->key_dictionary_block
+ kd_size
/ SB_BLOCK_SIZE
;
1394 /* Compute header digest. */
1395 md_ctx
= EVP_MD_CTX_new();
1397 EVP_DigestInit(md_ctx
, EVP_sha1());
1398 EVP_DigestUpdate(md_ctx
, hdr
->signature1
,
1399 sizeof(struct sb_boot_image_header
) -
1400 sizeof(hdr
->digest
));
1401 EVP_DigestFinal(md_ctx
, hdr
->digest
, NULL
);
1402 EVP_MD_CTX_free(md_ctx
);
1407 static int sb_fixup_sections_and_tags(struct sb_image_ctx
*ictx
)
1409 /* Fixup the placement of sections. */
1410 struct sb_boot_image_header
*ihdr
= &ictx
->payload
;
1411 struct sb_section_ctx
*sctx
= ictx
->sect_head
;
1412 struct sb_sections_header
*shdr
;
1413 struct sb_cmd_ctx
*cctx
;
1414 struct sb_command
*ccmd
;
1415 uint32_t offset
= ihdr
->first_boot_tag_block
;
1418 shdr
= &sctx
->payload
;
1420 /* Fill in the section TAG offset. */
1421 shdr
->section_offset
= offset
+ 1;
1422 offset
+= shdr
->section_size
;
1424 /* Section length is measured from the TAG block. */
1425 shdr
->section_size
--;
1427 /* Fixup the TAG command. */
1428 cctx
= sctx
->cmd_head
;
1430 ccmd
= &cctx
->payload
;
1431 if (ccmd
->header
.tag
== ROM_TAG_CMD
) {
1432 ccmd
->tag
.section_number
= shdr
->section_number
;
1433 ccmd
->tag
.section_length
= shdr
->section_size
;
1434 ccmd
->tag
.section_flags
= shdr
->section_flags
;
1437 /* Update the command checksum. */
1438 ccmd
->header
.checksum
= sb_command_checksum(ccmd
);
1449 static int sb_parse_line(struct sb_image_ctx
*ictx
, struct sb_cmd_list
*cmd
)
1452 char *line
= cmd
->cmd
;
1456 /* Analyze the identifier on this line first. */
1457 tok
= strtok_r(line
, " ", &rptr
);
1458 if (!tok
|| (strlen(tok
) == 0)) {
1459 fprintf(stderr
, "#%i ERR: Invalid line!\n", cmd
->lineno
);
1465 /* set DISPLAY_PROGRESS flag */
1466 if (!strcmp(tok
, "DISPLAYPROGRESS")) {
1467 ictx
->display_progress
= 1;
1472 if (!strcmp(tok
, "DCD")) {
1473 ictx
->in_section
= 0;
1475 sb_build_dcd(ictx
, cmd
);
1480 if (!strcmp(tok
, "SECTION")) {
1481 ictx
->in_section
= 1;
1483 sb_build_section(ictx
, cmd
);
1487 if (!ictx
->in_section
&& !ictx
->in_dcd
) {
1488 fprintf(stderr
, "#%i ERR: Data outside of a section!\n",
1493 if (ictx
->in_section
) {
1494 /* Section commands */
1495 if (!strcmp(tok
, "NOP")) {
1496 ret
= sb_build_command_nop(ictx
);
1497 } else if (!strcmp(tok
, "TAG")) {
1498 ret
= sb_build_command_tag(ictx
, cmd
);
1499 } else if (!strcmp(tok
, "LOAD")) {
1500 ret
= sb_build_command_load(ictx
, cmd
);
1501 } else if (!strcmp(tok
, "FILL")) {
1502 ret
= sb_build_command_fill(ictx
, cmd
);
1503 } else if (!strcmp(tok
, "JUMP")) {
1504 ret
= sb_build_command_jump(ictx
, cmd
);
1505 } else if (!strcmp(tok
, "CALL")) {
1506 ret
= sb_build_command_call(ictx
, cmd
);
1507 } else if (!strcmp(tok
, "MODE")) {
1508 ret
= sb_build_command_mode(ictx
, cmd
);
1511 "#%i ERR: Unsupported instruction '%s'!\n",
1515 } else if (ictx
->in_dcd
) {
1517 uint32_t ilen
= '1';
1519 tok
= strtok_r(tok
, ".", &lptr
);
1520 if (!tok
|| (strlen(tok
) == 0) || (lptr
&& strlen(lptr
) != 1)) {
1521 fprintf(stderr
, "#%i ERR: Invalid line!\n",
1527 (lptr
[0] != '1' && lptr
[0] != '2' && lptr
[0] != '4')) {
1528 fprintf(stderr
, "#%i ERR: Invalid instruction width!\n",
1534 ilen
= lptr
[0] - '1';
1537 if (!strcmp(tok
, "WRITE")) {
1538 ret
= sb_build_dcd_block(ictx
, cmd
,
1539 SB_DCD_WRITE
| ilen
);
1540 } else if (!strcmp(tok
, "ANDC")) {
1541 ret
= sb_build_dcd_block(ictx
, cmd
,
1542 SB_DCD_ANDC
| ilen
);
1543 } else if (!strcmp(tok
, "ORR")) {
1544 ret
= sb_build_dcd_block(ictx
, cmd
,
1546 } else if (!strcmp(tok
, "EQZ")) {
1547 ret
= sb_build_dcd_block(ictx
, cmd
,
1548 SB_DCD_CHK_EQZ
| ilen
);
1549 } else if (!strcmp(tok
, "EQ")) {
1550 ret
= sb_build_dcd_block(ictx
, cmd
,
1551 SB_DCD_CHK_EQ
| ilen
);
1552 } else if (!strcmp(tok
, "NEQ")) {
1553 ret
= sb_build_dcd_block(ictx
, cmd
,
1554 SB_DCD_CHK_NEQ
| ilen
);
1555 } else if (!strcmp(tok
, "NEZ")) {
1556 ret
= sb_build_dcd_block(ictx
, cmd
,
1557 SB_DCD_CHK_NEZ
| ilen
);
1558 } else if (!strcmp(tok
, "NOOP")) {
1559 ret
= sb_build_dcd_block(ictx
, cmd
, SB_DCD_NOOP
);
1562 "#%i ERR: Unsupported instruction '%s'!\n",
1567 fprintf(stderr
, "#%i ERR: Unsupported instruction '%s'!\n",
1573 * Here we have at least one section with one command, otherwise we
1574 * would have failed already higher above.
1576 * FIXME -- should the updating happen here ?
1578 if (ictx
->in_section
&& !ret
) {
1579 ictx
->sect_tail
->size
+= ictx
->sect_tail
->cmd_tail
->size
;
1580 ictx
->sect_tail
->payload
.section_size
=
1581 ictx
->sect_tail
->size
/ SB_BLOCK_SIZE
;
1587 static int sb_load_cmdfile(struct sb_image_ctx
*ictx
)
1589 struct sb_cmd_list cmd
;
1596 fp
= fopen(ictx
->cfg_filename
, "r");
1600 while ((rlen
= getline(&line
, &len
, fp
)) > 0) {
1601 memset(&cmd
, 0, sizeof(cmd
));
1603 /* Strip the trailing newline. */
1604 line
[rlen
- 1] = '\0';
1608 cmd
.lineno
= lineno
++;
1610 sb_parse_line(ictx
, &cmd
);
1621 fprintf(stderr
, "ERR: Failed to load file \"%s\"\n",
1622 ictx
->cfg_filename
);
1626 static int sb_build_tree_from_cfg(struct sb_image_ctx
*ictx
)
1630 ret
= sb_load_cmdfile(ictx
);
1634 ret
= sb_prefill_image_header(ictx
);
1638 ret
= sb_postfill_image_header(ictx
);
1642 ret
= sb_fixup_sections_and_tags(ictx
);
1649 static int sb_verify_image_header(struct sb_image_ctx
*ictx
,
1650 FILE *fp
, long fsize
)
1652 /* Verify static fields in the image header. */
1653 struct sb_boot_image_header
*hdr
= &ictx
->payload
;
1654 const char *stat
[2] = { "[PASS]", "[FAIL]" };
1657 unsigned char digest
[20];
1661 /* Start image-wide crypto. */
1662 ictx
->md_ctx
= EVP_MD_CTX_new();
1663 EVP_DigestInit(ictx
->md_ctx
, EVP_sha1());
1665 soprintf(ictx
, "---------- Verifying SB Image Header ----------\n");
1667 size
= fread(&ictx
->payload
, 1, sizeof(ictx
->payload
), fp
);
1668 if (size
!= sizeof(ictx
->payload
)) {
1669 fprintf(stderr
, "ERR: SB image header too short!\n");
1673 /* Compute header digest. */
1674 md_ctx
= EVP_MD_CTX_new();
1675 EVP_DigestInit(md_ctx
, EVP_sha1());
1676 EVP_DigestUpdate(md_ctx
, hdr
->signature1
,
1677 sizeof(struct sb_boot_image_header
) -
1678 sizeof(hdr
->digest
));
1679 EVP_DigestFinal(md_ctx
, digest
, NULL
);
1680 EVP_MD_CTX_free(md_ctx
);
1682 sb_aes_init(ictx
, NULL
, 1);
1683 sb_encrypt_sb_header(ictx
);
1685 if (memcmp(digest
, hdr
->digest
, 20))
1687 soprintf(ictx
, "%s Image header checksum: %s\n", stat
[!!ret
],
1688 ret
? "BAD" : "OK");
1692 if (memcmp(hdr
->signature1
, "STMP", 4) ||
1693 memcmp(hdr
->signature2
, "sgtl", 4))
1695 soprintf(ictx
, "%s Signatures: '%.4s' '%.4s'\n",
1696 stat
[!!ret
], hdr
->signature1
, hdr
->signature2
);
1700 if ((hdr
->major_version
!= SB_VERSION_MAJOR
) ||
1701 ((hdr
->minor_version
!= 1) && (hdr
->minor_version
!= 2)))
1703 soprintf(ictx
, "%s Image version: v%i.%i\n", stat
[!!ret
],
1704 hdr
->major_version
, hdr
->minor_version
);
1708 ret
= sb_get_time(hdr
->timestamp_us
/ 1000000, &tm
);
1710 "%s Creation time: %02i:%02i:%02i %02i/%02i/%04i\n",
1711 stat
[!!ret
], tm
.tm_hour
, tm
.tm_min
, tm
.tm_sec
,
1712 tm
.tm_mday
, tm
.tm_mon
, tm
.tm_year
+ 2000);
1716 soprintf(ictx
, "%s Product version: %x.%x.%x\n", stat
[0],
1717 ntohs(hdr
->product_version
.major
),
1718 ntohs(hdr
->product_version
.minor
),
1719 ntohs(hdr
->product_version
.revision
));
1720 soprintf(ictx
, "%s Component version: %x.%x.%x\n", stat
[0],
1721 ntohs(hdr
->component_version
.major
),
1722 ntohs(hdr
->component_version
.minor
),
1723 ntohs(hdr
->component_version
.revision
));
1725 if (hdr
->flags
& ~SB_IMAGE_FLAGS_MASK
)
1727 soprintf(ictx
, "%s Image flags: %s\n", stat
[!!ret
],
1728 hdr
->flags
& SB_IMAGE_FLAG_DISPLAY_PROGRESS
?
1729 "Display_progress" : "");
1733 if (hdr
->drive_tag
!= 0)
1735 soprintf(ictx
, "%s Drive tag: %i\n", stat
[!!ret
],
1740 sz
= sizeof(struct sb_boot_image_header
) / SB_BLOCK_SIZE
;
1741 if (hdr
->header_blocks
!= sz
)
1743 soprintf(ictx
, "%s Image header size (blocks): %i\n", stat
[!!ret
],
1744 hdr
->header_blocks
);
1748 sz
= sizeof(struct sb_sections_header
) / SB_BLOCK_SIZE
;
1749 if (hdr
->section_header_size
!= sz
)
1751 soprintf(ictx
, "%s Section header size (blocks): %i\n", stat
[!!ret
],
1752 hdr
->section_header_size
);
1756 soprintf(ictx
, "%s Sections count: %i\n", stat
[!!ret
],
1757 hdr
->section_count
);
1758 soprintf(ictx
, "%s First bootable section %i\n", stat
[!!ret
],
1759 hdr
->first_boot_section_id
);
1761 if (hdr
->image_blocks
!= fsize
/ SB_BLOCK_SIZE
)
1763 soprintf(ictx
, "%s Image size (blocks): %i\n", stat
[!!ret
],
1768 sz
= hdr
->header_blocks
+ hdr
->section_header_size
* hdr
->section_count
;
1769 if (hdr
->key_dictionary_block
!= sz
)
1771 soprintf(ictx
, "%s Key dict offset (blocks): %i\n", stat
[!!ret
],
1772 hdr
->key_dictionary_block
);
1776 if (hdr
->key_count
!= 1)
1778 soprintf(ictx
, "%s Number of encryption keys: %i\n", stat
[!!ret
],
1783 sz
= hdr
->header_blocks
+ hdr
->section_header_size
* hdr
->section_count
;
1784 sz
+= hdr
->key_count
*
1785 sizeof(struct sb_key_dictionary_key
) / SB_BLOCK_SIZE
;
1786 if (hdr
->first_boot_tag_block
!= (unsigned)sz
)
1788 soprintf(ictx
, "%s First TAG block (blocks): %i\n", stat
[!!ret
],
1789 hdr
->first_boot_tag_block
);
1796 static void sb_decrypt_tag(struct sb_image_ctx
*ictx
,
1797 struct sb_cmd_ctx
*cctx
)
1799 EVP_MD_CTX
*md_ctx
= ictx
->md_ctx
;
1800 struct sb_command
*cmd
= &cctx
->payload
;
1802 sb_aes_crypt(ictx
, (uint8_t *)&cctx
->c_payload
,
1803 (uint8_t *)&cctx
->payload
, sizeof(*cmd
));
1804 EVP_DigestUpdate(md_ctx
, &cctx
->c_payload
, sizeof(*cmd
));
1807 static int sb_verify_command(struct sb_image_ctx
*ictx
,
1808 struct sb_cmd_ctx
*cctx
, FILE *fp
,
1809 unsigned long *tsize
)
1811 struct sb_command
*ccmd
= &cctx
->payload
;
1812 unsigned long size
, asize
;
1813 char *csum
, *flag
= "";
1816 uint8_t csn
, csc
= ccmd
->header
.checksum
;
1817 ccmd
->header
.checksum
= 0x5a;
1818 csn
= sb_command_checksum(ccmd
);
1819 ccmd
->header
.checksum
= csc
;
1825 csum
= ret
? "checksum BAD" : "checksum OK";
1827 switch (ccmd
->header
.tag
) {
1829 soprintf(ictx
, " NOOP # %s\n", csum
);
1832 if (ccmd
->header
.flags
& ROM_TAG_CMD_FLAG_ROM_LAST_TAG
)
1834 soprintf(ictx
, " TAG %s # %s\n", flag
, csum
);
1835 sb_aes_reinit(ictx
, 0);
1838 soprintf(ictx
, " LOAD addr=0x%08x length=0x%08x # %s\n",
1839 ccmd
->load
.address
, ccmd
->load
.count
, csum
);
1841 cctx
->length
= ccmd
->load
.count
;
1842 asize
= roundup(cctx
->length
, SB_BLOCK_SIZE
);
1843 cctx
->data
= malloc(asize
);
1847 size
= fread(cctx
->data
, 1, asize
, fp
);
1848 if (size
!= asize
) {
1850 "ERR: SB LOAD command payload too short!\n");
1856 EVP_DigestUpdate(ictx
->md_ctx
, cctx
->data
, asize
);
1857 sb_aes_crypt(ictx
, cctx
->data
, cctx
->data
, asize
);
1859 if (ccmd
->load
.crc32
!= pbl_crc32(0,
1860 (const char *)cctx
->data
,
1863 "ERR: SB LOAD command payload CRC32 invalid!\n");
1869 " FILL addr=0x%08x length=0x%08x pattern=0x%08x # %s\n",
1870 ccmd
->fill
.address
, ccmd
->fill
.count
,
1871 ccmd
->fill
.pattern
, csum
);
1874 if (ccmd
->header
.flags
& ROM_JUMP_CMD_FLAG_HAB
)
1877 " JUMP%s addr=0x%08x r0_arg=0x%08x # %s\n",
1878 flag
, ccmd
->fill
.address
, ccmd
->jump
.argument
, csum
);
1881 if (ccmd
->header
.flags
& ROM_CALL_CMD_FLAG_HAB
)
1884 " CALL%s addr=0x%08x r0_arg=0x%08x # %s\n",
1885 flag
, ccmd
->fill
.address
, ccmd
->jump
.argument
, csum
);
1888 for (i
= 0; i
< ARRAY_SIZE(modetable
); i
++) {
1889 if (ccmd
->mode
.mode
== modetable
[i
].mode
) {
1890 soprintf(ictx
, " MODE %s # %s\n",
1891 modetable
[i
].name
, csum
);
1895 fprintf(stderr
, " MODE !INVALID! # %s\n", csum
);
1902 static int sb_verify_commands(struct sb_image_ctx
*ictx
,
1903 struct sb_section_ctx
*sctx
, FILE *fp
)
1905 unsigned long size
, tsize
= 0;
1906 struct sb_cmd_ctx
*cctx
;
1909 sb_aes_reinit(ictx
, 0);
1911 while (tsize
< sctx
->size
) {
1912 cctx
= calloc(1, sizeof(*cctx
));
1915 if (!sctx
->cmd_head
) {
1916 sctx
->cmd_head
= cctx
;
1917 sctx
->cmd_tail
= cctx
;
1919 sctx
->cmd_tail
->cmd
= cctx
;
1920 sctx
->cmd_tail
= cctx
;
1923 size
= fread(&cctx
->c_payload
, 1, sizeof(cctx
->c_payload
), fp
);
1924 if (size
!= sizeof(cctx
->c_payload
)) {
1925 fprintf(stderr
, "ERR: SB command header too short!\n");
1931 sb_decrypt_tag(ictx
, cctx
);
1933 ret
= sb_verify_command(ictx
, cctx
, fp
, &tsize
);
1941 static int sb_verify_sections_cmds(struct sb_image_ctx
*ictx
, FILE *fp
)
1943 struct sb_boot_image_header
*hdr
= &ictx
->payload
;
1944 struct sb_sections_header
*shdr
;
1947 struct sb_section_ctx
*sctx
;
1949 char *bootable
= "";
1951 soprintf(ictx
, "----- Verifying SB Sections and Commands -----\n");
1953 for (i
= 0; i
< hdr
->section_count
; i
++) {
1954 sctx
= calloc(1, sizeof(*sctx
));
1957 if (!ictx
->sect_head
) {
1958 ictx
->sect_head
= sctx
;
1959 ictx
->sect_tail
= sctx
;
1961 ictx
->sect_tail
->sect
= sctx
;
1962 ictx
->sect_tail
= sctx
;
1965 size
= fread(&sctx
->payload
, 1, sizeof(sctx
->payload
), fp
);
1966 if (size
!= sizeof(sctx
->payload
)) {
1967 fprintf(stderr
, "ERR: SB section header too short!\n");
1972 size
= fread(&ictx
->sb_dict_key
, 1, sizeof(ictx
->sb_dict_key
), fp
);
1973 if (size
!= sizeof(ictx
->sb_dict_key
)) {
1974 fprintf(stderr
, "ERR: SB key dictionary too short!\n");
1978 sb_encrypt_sb_sections_header(ictx
);
1979 sb_aes_reinit(ictx
, 0);
1980 sb_decrypt_key_dictionary_key(ictx
);
1982 sb_aes_reinit(ictx
, 0);
1984 sctx
= ictx
->sect_head
;
1986 shdr
= &sctx
->payload
;
1988 if (shdr
->section_flags
& SB_SECTION_FLAG_BOOTABLE
) {
1990 bootable
= " BOOTABLE";
1993 sctx
->size
= (shdr
->section_size
* SB_BLOCK_SIZE
) +
1994 sizeof(struct sb_command
);
1995 soprintf(ictx
, "SECTION 0x%x%s # size = %i bytes\n",
1996 shdr
->section_number
, bootable
, sctx
->size
);
1998 if (shdr
->section_flags
& ~SB_SECTION_FLAG_BOOTABLE
)
1999 fprintf(stderr
, " WARN: Unknown section flag(s) %08x\n",
2000 shdr
->section_flags
);
2002 if ((shdr
->section_flags
& SB_SECTION_FLAG_BOOTABLE
) &&
2003 (hdr
->first_boot_section_id
!= shdr
->section_number
)) {
2005 " WARN: Bootable section does ID not match image header ID!\n");
2008 ret
= sb_verify_commands(ictx
, sctx
, fp
);
2017 * check if the first TAG command is at sctx->section_offset
2022 static int sb_verify_image_end(struct sb_image_ctx
*ictx
,
2023 FILE *fp
, off_t filesz
)
2030 soprintf(ictx
, "------------- Verifying image end -------------\n");
2032 size
= fread(digest
, 1, sizeof(digest
), fp
);
2033 if (size
!= sizeof(digest
)) {
2034 fprintf(stderr
, "ERR: SB key dictionary too short!\n");
2039 if (pos
!= filesz
) {
2040 fprintf(stderr
, "ERR: Trailing data past the image!\n");
2044 /* Check the image digest. */
2045 EVP_DigestFinal(ictx
->md_ctx
, ictx
->digest
, NULL
);
2046 EVP_MD_CTX_free(ictx
->md_ctx
);
2048 /* Decrypt the image digest from the input image. */
2049 sb_aes_reinit(ictx
, 0);
2050 sb_aes_crypt(ictx
, digest
, digest
, sizeof(digest
));
2052 /* Check all of 20 bytes of the SHA1 hash. */
2053 ret
= memcmp(digest
, ictx
->digest
, 20) ? -EINVAL
: 0;
2056 soprintf(ictx
, "[FAIL] Full-image checksum: BAD\n");
2058 soprintf(ictx
, "[PASS] Full-image checksum: OK\n");
2064 static int sb_build_tree_from_img(struct sb_image_ctx
*ictx
)
2070 if (!ictx
->input_filename
) {
2071 fprintf(stderr
, "ERR: Missing filename!\n");
2075 fp
= fopen(ictx
->input_filename
, "r");
2079 ret
= fseek(fp
, 0, SEEK_END
);
2083 filesize
= ftell(fp
);
2087 ret
= fseek(fp
, 0, SEEK_SET
);
2091 if (filesize
< (signed)sizeof(ictx
->payload
)) {
2092 fprintf(stderr
, "ERR: File too short!\n");
2096 if (filesize
& (SB_BLOCK_SIZE
- 1)) {
2097 fprintf(stderr
, "ERR: The file is not aligned!\n");
2101 /* Load and verify image header */
2102 ret
= sb_verify_image_header(ictx
, fp
, filesize
);
2106 /* Load and verify sections and commands */
2107 ret
= sb_verify_sections_cmds(ictx
, fp
);
2111 ret
= sb_verify_image_end(ictx
, fp
, filesize
);
2118 soprintf(ictx
, "-------------------- Result -------------------\n");
2119 soprintf(ictx
, "Verification %s\n", ret
? "FAILED" : "PASSED");
2121 /* Stop the encryption session. */
2122 sb_aes_deinit(ictx
->cipher_ctx
);
2130 fprintf(stderr
, "ERR: Failed to load file \"%s\"\n",
2131 ictx
->input_filename
);
2135 static void sb_free_image(struct sb_image_ctx
*ictx
)
2137 struct sb_section_ctx
*sctx
= ictx
->sect_head
, *s_head
;
2138 struct sb_dcd_ctx
*dctx
= ictx
->dcd_head
, *d_head
;
2139 struct sb_cmd_ctx
*cctx
, *c_head
;
2143 c_head
= sctx
->cmd_head
;
2147 c_head
= c_head
->cmd
;
2160 free(d_head
->payload
);
2166 * MXSSB-MKIMAGE glue code.
2168 static int mxsimage_check_image_types(uint8_t type
)
2170 if (type
== IH_TYPE_MXSIMAGE
)
2171 return EXIT_SUCCESS
;
2173 return EXIT_FAILURE
;
2176 static void mxsimage_set_header(void *ptr
, struct stat
*sbuf
, int ifd
,
2177 struct image_tool_params
*params
)
2181 int mxsimage_check_params(struct image_tool_params
*params
)
2185 if (!strlen(params
->imagename
)) {
2187 "Error: %s - Configuration file not specified, it is needed for mxsimage generation\n",
2194 * XIP is not allowed and verify that incompatible
2195 * parameters are not sent at the same time
2196 * For example, if list is required a data image must not be provided
2198 return (params
->dflag
&& (params
->fflag
|| params
->lflag
)) ||
2199 (params
->fflag
&& (params
->dflag
|| params
->lflag
)) ||
2200 (params
->lflag
&& (params
->dflag
|| params
->fflag
)) ||
2201 (params
->xflag
) || !(strlen(params
->imagename
));
2204 static int mxsimage_verify_print_header(char *file
, int silent
)
2207 struct sb_image_ctx ctx
;
2209 memset(&ctx
, 0, sizeof(ctx
));
2211 ctx
.input_filename
= file
;
2212 ctx
.silent_dump
= silent
;
2214 ret
= sb_build_tree_from_img(&ctx
);
2215 sb_free_image(&ctx
);
2221 static int mxsimage_verify_header(unsigned char *ptr
, int image_size
,
2222 struct image_tool_params
*params
)
2224 struct sb_boot_image_header
*hdr
;
2229 hdr
= (struct sb_boot_image_header
*)ptr
;
2232 * Check if the header contains the MXS image signatures,
2233 * if so, do a full-image verification.
2235 if (memcmp(hdr
->signature1
, "STMP", 4) ||
2236 memcmp(hdr
->signature2
, "sgtl", 4))
2239 imagefile
= params
->imagefile
;
2241 return mxsimage_verify_print_header(params
->imagefile
, 1);
2244 static void mxsimage_print_header(const void *hdr
)
2247 mxsimage_verify_print_header(imagefile
, 0);
2250 static int sb_build_image(struct sb_image_ctx
*ictx
,
2251 struct image_type_params
*tparams
)
2253 struct sb_boot_image_header
*sb_header
= &ictx
->payload
;
2254 struct sb_section_ctx
*sctx
;
2255 struct sb_cmd_ctx
*cctx
;
2256 struct sb_command
*ccmd
;
2257 struct sb_key_dictionary_key
*sb_dict_key
= &ictx
->sb_dict_key
;
2259 uint8_t *image
, *iptr
;
2261 /* Calculate image size. */
2262 uint32_t size
= sizeof(*sb_header
) +
2263 ictx
->sect_count
* sizeof(struct sb_sections_header
) +
2264 sizeof(*sb_dict_key
) + sizeof(ictx
->digest
);
2266 sctx
= ictx
->sect_head
;
2272 image
= malloc(size
);
2277 memcpy(iptr
, sb_header
, sizeof(*sb_header
));
2278 iptr
+= sizeof(*sb_header
);
2280 sctx
= ictx
->sect_head
;
2282 memcpy(iptr
, &sctx
->payload
, sizeof(struct sb_sections_header
));
2283 iptr
+= sizeof(struct sb_sections_header
);
2287 memcpy(iptr
, sb_dict_key
, sizeof(*sb_dict_key
));
2288 iptr
+= sizeof(*sb_dict_key
);
2290 sctx
= ictx
->sect_head
;
2292 cctx
= sctx
->cmd_head
;
2294 ccmd
= &cctx
->payload
;
2296 memcpy(iptr
, &cctx
->c_payload
, sizeof(cctx
->payload
));
2297 iptr
+= sizeof(cctx
->payload
);
2299 if (ccmd
->header
.tag
== ROM_LOAD_CMD
) {
2300 memcpy(iptr
, cctx
->data
, cctx
->length
);
2301 iptr
+= cctx
->length
;
2310 memcpy(iptr
, ictx
->digest
, sizeof(ictx
->digest
));
2311 iptr
+= sizeof(ictx
->digest
);
2313 /* Configure the mkimage */
2314 tparams
->hdr
= image
;
2315 tparams
->header_size
= size
;
2320 static int mxsimage_generate(struct image_tool_params
*params
,
2321 struct image_type_params
*tparams
)
2324 struct sb_image_ctx ctx
;
2326 /* Do not copy the U-Boot image! */
2327 params
->skipcpy
= 1;
2329 memset(&ctx
, 0, sizeof(ctx
));
2331 ctx
.cfg_filename
= params
->imagename
;
2332 ctx
.output_filename
= params
->imagefile
;
2334 ret
= sb_build_tree_from_cfg(&ctx
);
2338 ret
= sb_encrypt_image(&ctx
);
2340 ret
= sb_build_image(&ctx
, tparams
);
2343 sb_free_image(&ctx
);
2349 * mxsimage parameters
2353 "Freescale MXS Boot Image support",
2356 mxsimage_check_params
,
2357 mxsimage_verify_header
,
2358 mxsimage_print_header
,
2359 mxsimage_set_header
,
2361 mxsimage_check_image_types
,