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wolfBoot
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Fixed TLV alignment for 8B fields 

+ added sim "get_tlv" command
pull/417/head
Daniele Lacamera 2024-03-08 18:40:34 +01:00
parent 01e22edb34
commit e9d65b3bd2
3 changed files with 39 additions and 6 deletions
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11
Makefile
View File

@ -198,15 +198,18 @@ test-app/image.elf: wolfboot.elf
$(Q)$(MAKE) -C test-app WOLFBOOT_ROOT="$(WOLFBOOT_ROOT)" image.elf
$(Q)$(SIZE) test-app/image.elf
internal_flash.dd: $(BINASSEMBLE) wolfboot.bin $(BOOT_IMG) $(PRIVATE_KEY) test-app/image_v1_signed.bin
@echo "\t[MERGE] internal_flash.dd"
$(Q)dd if=/dev/zero bs=1 count=$$(($(WOLFBOOT_SECTOR_SIZE))) > /tmp/swap
$(Q)$(BINASSEMBLE) $@ \
assemble_internal_flash.dd: FORCE
$(Q)$(BINASSEMBLE) internal_flash.dd \
0 wolfboot.bin \
$$(($(WOLFBOOT_PARTITION_BOOT_ADDRESS) - $(ARCH_FLASH_OFFSET))) test-app/image_v1_signed.bin \
$$(($(WOLFBOOT_PARTITION_UPDATE_ADDRESS)-$(ARCH_FLASH_OFFSET))) /tmp/swap \
$$(($(WOLFBOOT_PARTITION_SWAP_ADDRESS)-$(ARCH_FLASH_OFFSET))) /tmp/swap
internal_flash.dd: $(BINASSEMBLE) wolfboot.bin $(BOOT_IMG) $(PRIVATE_KEY) test-app/image_v1_signed.bin
@echo "\t[MERGE] internal_flash.dd"
$(Q)dd if=/dev/zero bs=1 count=$$(($(WOLFBOOT_SECTOR_SIZE))) > /tmp/swap
make assemble_internal_flash.dd
factory.bin: $(BINASSEMBLE) wolfboot.bin $(BOOT_IMG) $(PRIVATE_KEY) test-app/image_v1_signed.bin
@echo "\t[MERGE] $@"
$(Q)$(BINASSEMBLE) $@ \

24
test-app/app_sim.c
View File

@ -70,7 +70,31 @@ int do_cmd(const char *cmd)
if (strcmp(cmd, "reset") == 0) {
exit(0);
}
if (strncmp(cmd, "get_tlv",7) == 0) {
uint8_t* imageHdr = (uint8_t*)WOLFBOOT_PARTITION_BOOT_ADDRESS;
uint8_t* ptr = NULL;
uint16_t tlv = 0x34; /* default */
int size;
int i;
const char* tlvStr = strstr(cmd, "get_tlv=");
if (tlvStr) {
tlvStr += strlen("get_tlv=");
tlv = (uint16_t)atoi(tlvStr);
}
printf("Get TLV %04x\r\n", tlv);
size = wolfBoot_find_header(imageHdr + IMAGE_HEADER_OFFSET, tlv, &ptr);
if (size >= 0 && ptr != NULL) {
/* From here, the value 0xAABBCCDD is at ptr */
printf("TLV 0x%x:\n", tlv);
for (i=0; i<size; i++) {
printf(" 0x%02X ", ptr[i]);
}
printf("\n");
}
return 0;
}
/* wrong command */
return -1;
}

10
tools/keytools/sign.c
View File

@ -1085,7 +1085,10 @@ static int make_header_ex(int is_diff, uint8_t *pubkey, uint32_t pubkey_sz,
uint32_t i;
for (i = 0; i < CMD.custom_tlvs; i++) {
/* require 8-byte alignment */
while ((header_idx % 8) != 0)
/* The offset '4' takes into account 2B Tag + 2B Len, so that the
* Value starts at (addr % 8 == 0) position.
*/
while ((header_idx % 8) != 4)
header_idx++;
if (CMD.custom_tlv[i].buffer == NULL) {
@ -1099,7 +1102,10 @@ static int make_header_ex(int is_diff, uint8_t *pubkey, uint32_t pubkey_sz,
}
/* Add padding bytes. Sha-3 val field requires 8-byte alignment */
while ((header_idx % 8) != 0)
/* The offset '4' takes into account 2B Tag + 2B Len, so that the Value
* starts at (addr % 8 == 0) position.
*/
while ((header_idx % 8) != 4)
header_idx++;
/* Calculate hashes */